The structure and principle of operation of a blowtorch. How to make a blowtorch with your own hands: step-by-step instructions What can be made from an old blowtorch

05.03.2020 Warm floor

A blowtorch is one of the most indispensable things in everyday life, because with its help you can not only warm up frozen elements of locks or vehicles (snowmobile owners are especially familiar with its need), but also perform no less important work like tarring poultry, pig carcasses and so on and so forth. Many craftsmen have learned not only to effectively repair it, replacing worn-out parts, but also to even make a blowtorch with their own hands from available materials. But, first things first, the easiest way to make this multifunctional device at home is to make an open-flame lamp from a copper pipe with an insert. Samu copper pipe made curved at a right angle, using a special connecting corner for this purpose. A second piece of pipe is attached to this corner, but only of a shorter length.

Among other things, you will need such auxiliary fastening devices as ball valves with a rotating mechanism, firmly mounted on a copper or metal pipe section, a nut, a tip and a coupling device. Connection work is carried out using washers, modification no less than M6. The most difficult stage in performing a blowtorch at home is the manufacture and fixation of the burner. To provide maximum convenience When adjusting the tip, it is best to weld the nut to the inner walls of the copper, which, as is known, have a very small thickness. Moreover, this approach makes it possible to significantly simplify not only the procedure for fixing the tip, but also its dismantling and replacement. After this, through holes are made along the entire diameter of the part, the main purpose of which is rigid coupling.

In order to maintain the most accurate level of the aligned connection parts during subsequent soldering, you will need to temporarily fix the auxiliary bolt, which is removed immediately after completion of the work as it is completely unnecessary. To attach the tip, the height of which ranges from eight to ten millimeters, you will need a special recess in the workpiece, the size of which will be about 4.5 millimeters. Also, don’t forget about this the most important stage, which occurs at the final stage of the work process, like wrapping those areas with a special fine mesh ball valve, which are adjacent to each other. Ultimately, if you follow the instructions correctly, it should lie exactly under the washer with the M6 modification. Such a simple device will help to stop the gas supply in time, which is undoubtedly very convenient.

At the same time, one cannot say that we are talking about the most powerful tool, but to cope with the above simple tasks it can, and quite well. If desired, you can make a more complex device that can not only heat or burn surfaces, but also melt them. As an example, we can consider a gas burner made in the form of a spray gun, a more advanced prototype of which is widely used by jewelry craftsmen. To do this you will need a durable container made of such sustainable materials, like plexiglass or metal, the volume of which will average about one glass (200-250 milliliters). The body of such a mini-burner itself is best made of brass, and the shut-off valve is not welded or screwed onto the thread, but rubbed in using a special paste.

As many have probably already guessed, we are talking about GOI paste. At the same time, before putting the spray burner into operation, you should definitely check the quality of the grinding and this is very simple to do. To do this, the brass body, together with the tap mounted on the GOI paste, is lowered into the water and the hole is plugged with a finger. After this, air is supplied to the workpiece by pumping the connected bulb and the presence of oxygen bubbles emanating from the joints is observed. If they are completely absent, it is concluded that the connection was made efficiently. In order to make it absolutely safe to attach the body to the vessel itself, a gasket must be used in this place to ensure complete tightness. The burner itself is also machined from brass, and in the absence of special auxiliary devices, its manufacture can be ordered from a qualified specialist.

With the arrival of cold weather, the issue of heating rooms became acute again. What to do when you need to heat a garage, warehouse, basement or any other room quickly and without hassle? One author developed for these purposes interesting device, allowing you to quickly solve problems. A conventional blowtorch will be used as the basis for generating heat. Take a closer look at how you can assemble such a device with your own hands and forget about the cold.

Materials and tools for making a cannon:
- blowtorch (preferably like the author’s);
- drill with drills;
- Bulgarian;
- metal plates(thickness 2 mm, length 15-20 mm, and width depending on the size of the lid body);
- welding;
- refilling freon cylinders (to create a housing);
- folding fan;
- marker, ruler and other small things;
- piece iron pipe(according to the diameter of the lamp ejector).

Gun manufacturing process:

Step one. Disassembling the lamp
First you need to take a blowtorch and disassemble it. For homemade work, you only need an ejector, that is, a device that emits a flame. You will also need an adjustment valve. Next, in order to connect a hose to the ejector, you need to attach an adapter to it. The author makes it from a piece copper tube. It is important to understand that during operation of the lamp the ejector will heat up to 1200 C, so it will not be possible to place the tube on the glue. At a minimum, you need to use a soldering iron for these purposes, but it is best to use gas or electric welding.

Step two. Refinement of the ejector
Now you will need to do a little work with the drill. The fact is that to start the burner, the diameter of the nozzle hole needs to be made larger. For these purposes, the jet must be drilled out with a 1.5 mm drill. To do this, it is turned out and clamped in a vice. The main thing is to make the hole clearly in the center, otherwise the burner will not work correctly.

Step three. Making a burner extension
Next, you need to find a piece of iron pipe; its diameter should be such that it fits the outlet of the blowtorch. Next, take a grinder and use it to make longitudinal slits in the pipe, then metal plates are inserted into these niches. The author has four of them. Welding is used to fix the plates. The thickness of the plates should be about 2 mm, the length about 20 mm, and the width depends on the diameter of the gun body cover.

Step four: assembly and testing of the gun

On final stage The extension for the burner is welded to the lamp. Next, you can begin assembling the case gas gun.
To mount the fan, the author used a housing from a freon cylinder; it was the one that perfectly matched the diameter of the structure. As a result, the system will consist of two parts. One will have a fan, and the other will have a burner with an extension cord and three outlets warm air.

If you need to remove heat to a specific place, then you can weld a piece of pipe to the structure and put a corrugation on it. After manufacturing the housing, an extension cord is inserted into it and secured with a clamp.

Furnaces and boilers operating on waste oil have long taken their rightful place among heating devices. Exhaust is a cheap and sometimes free type of fuel; it is often used for this purpose in car repair shops and garages. Many craftsmen, when choosing a design, ask the question: is it possible to convert a gasoline blowtorch into a burner for mining?

The principle of operation of a conventional blowtorch is to ignite gasoline vapors expelled by compressed air out. This effect is achieved by pumping air into fuel tank burners.

What happens if you pour used oil into a blowtorch?

The oil itself, even under pressure, does not evaporate well - it needs to be heated. Due to poor atomization, the flame will be uneven and it will be difficult to ignite the burner. Oil burns with formation large quantity carbon deposits and soot, so the jet will quickly coke, its cross-section will decrease, and the lamp will fail. Increasing the cross-section of the nozzle will also not give the expected effect - the oil will be sprayed in large drops, which will not allow obtaining a uniform flame of the torch.

In addition, used oil often contains impurities: diesel fuel, gasoline, antifreeze and even water, which can lead to flashes inside the lamp. To use waste as fuel for a blowtorch, you will have to install a filtration system, which will further complicate the task.

Considering all the difficulties, using a gasoline blowtorch as a burner during mining is difficult and unsafe. Therefore, it is necessary to modify or completely change its design.

How to make a burner for mining yourself

For successful combustion of oil, you must either preheat it to the evaporation temperature - approximately 300 degrees Celsius, or finely spray and enrich the oil vapor with air. You can heat the oil to such temperatures using powerful heating elements, but this will increase energy costs.
An oil aerosol can be created by applying a stream of compressed air through a layer of oil. This effect is realized in the Babington burner - a device, an analogue of which you can assemble with your own hands from available components.

Babington burner - an alternative to a blowtorch

The Babington burner was originally patented to run on diesel fuel. Later, having made minor changes to the design, the craftsmen changed the design with their own hands and adapted the burner for burning waste machine and food oils. The degree of oil contamination does not matter much, since the fuel channels of the unit are free of bottlenecks prone to blockages.

Unlike a blowtorch, where the fuel-air mixture is sprayed under pressure through nozzles, in a Babington burner oil is pumped from a reservoir using a low-power pump and flows in a thin film along an inclined or spherical surface, and the oil-air mixture is formed by blowing a thin jet of compressed air air through this film.

The spraying effect is clearly presented in the video:

Fuel - tank, pump and pipes for supplying fuel.
Air, it consists of a compressor and an air tube.
A hemisphere with a small diameter hole where the air stream mixes with oil.
A nozzle that directs the flame in the desired direction.

The standard design can be modified with your own hands, increasing its efficiency. To do this, the fuel tank is equipped with a heater that heats the oil before the burner starts operating, which makes it possible to increase its fluidity. In addition, the fuel channel, made of metal tube, can be wrapped around the nozzle - this way the oil will heat up while the burner is operating.

The burner nozzle is directed into the boiler, where the fuel chamber and water jacket are heated. You can also use the device to melt and heat metals.

Advantages of a DIY Babington burner:

wide choice of fuel - used machine oils, lubricants of any viscosity, diesel fuel, fuel oil, any vegetable oils, including food production waste;
the presence of impurities in the fuel;
simplicity of design - you can do it yourself.

Flaws:

difficulty setting up the burner, especially often when changing the type of fuel;
smell and dirt - the burner cannot be installed in residential premises, a boiler room is required;
The use of the burner involves an open flame, so fire safety precautions must be observed.

There must be a powder or salt chemical fire extinguisher in the boiler room!

DIY Babington burner

You can assemble the burner yourself from simple components; for this you will need:

- A hollow ball or hemisphere with such a wall thickness that you can drill a hole with a diameter of no more than 0.3 mm. You can use any metal objects of a similar configuration, for example, brass door handle spherical shape, nuts with plugs. The main condition is the possibility of reliable fastening of the air duct.

Metal tube for supplying compressed air from the compressor, diameter - 10-15 mm.
A compressor, for example, from a refrigerator, with an operating pressure of 2 atm, a maximum pressure of 4 atm.
Fuel tank with a built-in heating element of 0.5-1 kW made of non-corrosion metal.
Fuel sump and pipe to drain excess oil back into the tank.
Copper tube, diameter - 10 mm, wall thickness - 1-1.5 mm for the fuel channel.
Oil pump from a car or motorcycle with an electric motor to drive the pump. It is advisable to equip the pump with a filter with a large mesh at the inlet.
The nozzle is a 200-400 mm long nozzle with an external thread of 2 inches.
Crosspiece for two-inch metal pipe with internal threads.
A 1" threaded drain and a 2/1" adapter to drain excess fuel into the sump.
Adapters and fittings for connecting the fuel line, air duct and nozzle.

Preparing burner components for assembly

1. The main and most important task is to make a hole of a given diameter in a spherical nozzle. The power of the burner depends on its size. For example, a boiler with a thermal power of 10-15 kW requires a burning torch obtained by operating a burner with one hole with a diameter of 0.2-0.25 mm. To obtain more power, there is no need to expand the hole - this will lead to larger droplets. It is better to make 2-4 holes with a diameter of 0.1-0.3 mm with a distance between them of 8-10 mm, otherwise the torches will be mutually extinguished. Fuel consumption can be calculated as follows: through one hole of 0.25 mm, 2 liters of waste are sprayed per hour.

Video about how you can make small diameter holes in a metal hemisphere:

1. The tank is made of corrosion-resistant metal. A heating element is built into it with a thermostat set to turn off the heating element at a temperature of 70 degrees Celsius.
2. It is necessary to make a fuel sump from the same material, equipped with a pipe with an overflow. Through this pipe, oil from the sump will flow back into the tank. To drain dirt from the sump, you can provide a plug in its bottom.

Assemble the burner body: connect the nozzle from the squeegee to the 2-inch cross in the front part, then adapters: from the top for oil supply, from the back side for air. From below, a 2/1-inch adapter and a squeegee are connected to the crosspiece, through which excess oil will drain into the sump. Adapters are made from plugs with drilled holes, into which the fuel and air channel tubes are inserted.

The housing can also be made from a tee, in which the air duct is inserted into the upper part, having previously drilled a hole of the required diameter.

The fuel path is made of a copper tube, one end of which is wound around the nozzle three times, and then led through a plug adapter into the housing at the top. The fuel pipe is connected to the pump, a coarse strainer is installed and the other end of the pipe is inserted into the tank. The fuel path can be equipped with a valve. The pump is connected to an electric motor operating from a 220 V network.

An air duct made of a metal tube is attached at one end to a hemisphere with a hole, having previously installed a plug adapter at the required distance. The hemisphere should be positioned so that the oil from the fuel tube evenly flows onto the rounded part of the nozzle, and then into the lower part of the housing and into the sump. The other part of the air duct is connected to a compressor, which is also connected to a 220 V network.
Since the installation will have as many as three consumers of electricity, which are not turned on simultaneously, it is advisable to equip the burner with a control panel: install a separate toggle switch or button to turn on the heating element and a separate toggle switch to turn on the compressor and pump. If desired, you can equip the remote control with a light signaling system made of diode lamps.
You can equip the burner with a controller that automatically turns on the units in accordance with the selected mode. Electric ignition is realized using spark plugs, and to extinguish the burner it is enough to turn off the oil supply.

Video - burner assembly diagram:

Preparing fuel for the burner

Almost any waste oil can be used in a Babington burner. Automotive waste with a large number of foreign inclusions is filtered before being poured into the tank through a mesh and mixed with cleaner oil. Oils with a small amount of impurities can be poured without preparation.

When using food vegetable oils, for example, deep-frying, it is recommended to let it sit for several hours and carefully drain off the residue. These oils are quite fluid when normal temperature, so they can be heated in the tank only at the moment the burner starts. When using fuel oil and other thick materials, they must be heated to a temperature of 70 to 90 degrees, otherwise the pump will work with overload.

Security measures

floors and walls made of flammable materials are sheathed with metal or asbestos sheets;
fuel reserves are stored at a safe distance;
oil leaks must be removed in a timely manner;
electrical elements of the installation must be carefully insulated to avoid sparking in the oil spray area;
The burner must be placed out of reach of air currents and drafts.

A burner with an open nozzle must not be left running unattended!

The Babington burner, unlike a blowtorch converted to work in mining, is a reliable and durable unit that does not require complex maintenance. It is enough to clean it periodically fuel system, tank and sump, blow out the air duct in idle mode, and also monitor the serviceability of the compressor and oil pump. A working burner is a reliable and economical unit with long term services.

Blowtorch is a portable burner with a directed flame used to heat parts. This adaptation is widely used in everyday life, and therefore there is a high probability that the lamp may break. This adaptation can be repaired even at home.

You will need

– screwdriver;
– needle;
– wire;
– oil for lubrication;
– pliers.

Instructions

1. Every tool used in everyday life has its own “Achilles heel”. The most common malfunctions of a blowtorch include failure of the pump, which builds up pressure in the tank with “fuel,” and clogging of the nozzle. It is somewhat less common to encounter a malfunction shut-off valves.

2. Observe the soldering area lamp and determine the problem. You will probably find out the reason that led to this breakdown.

3. If, after opening the valve, “fuel” oozes or bubbles, but is not supplied properly, then the problem is rooted in the nozzle. Clean the calibrated hole with a needle. If there is no result, then you will have to clean this component of the portable burner in a slightly different way.

4. Unscrew the jet and try to clean it again. After this, insert a thin wire into the fuel pipe, open the valve and flush this channel with gasoline. After completing the procedure, install the nozzle in place and secure it.

5. A malfunction of the blowtorch may manifest itself in the fact that hissing or other extraneous noise is heard during operation of the burner. The problem in this case is rooted in a malfunction of the inflating device.

6. In order to eliminate a malfunction related to the operation of the pumping device, unscrew the plug and remove the pump out. Remove the spool, the one located on the pump valve, clean this element of the burner structure from blockages and replace its spring. Lubricate the seals on the rod with engine oil.

7. If a flame begins to blaze from under the rod while the blowtorch is operating, extinguish the fire, and later remove the valve handle and plug and then change the gland packing of the intake needle.

On the eve of winter cold, a caring owner is obliged to check the functionality of the blowtorch. In order to avoid incidents related to the fact that precisely at the moment when something urgently needs to be heated, it turns out that it is impossible to do this due to a non-working device.

You will need

– screwdriver,
- pliers.

Instructions

1. Especially frequent failures in the operation of a blowtorch occur due to a clogged nozzle or a malfunction of the pump that pumps pressure into the gasoline tank. Failure of shut-off valves is very rare.

2. Let's start in order.

3. First. If, while the pump is pumping air pressure into the fuel tank, a hissing sound is heard from under it or gasoline penetrates inside and is squeezed out by the rod moving upward, then the pumping device is repaired. For this purpose, the plug is unscrewed, the pump is removed out and disassembled. A valve is installed at the air outlet from the pump, consisting of a spring and a ball adjacent to a ground seat. The spool is disassembled, cleaned of debris and its spring is replaced (if it is damaged by corrosion or bent). When assembling the pump, the condition of the cuff on the rod is checked; if satisfactory, it is lubricated with engine oil. Otherwise, it is replaced with a new one, after which the pump is assembled and installed in its original location.

4. Second. The air pressure in the tank is increased, but after the valve is opened, gasoline is not squeezed out of the nozzle in a stream, but bubbles and flows down in drops. Try using the supplied needle to clean the calibrated hole. If this does not work, then the jet is unscrewed and cleaned. After this, you need to slide a thin iron wire into fuel pipe, then open the valve and flush the channel with gasoline, and screw the nozzle into place.

5. Third. After the lamp flares up, gasoline is squeezed out from under the valve stem and ignites. To eliminate dangerous manifestations, the flame of the device is extinguished, the residual air pressure is released from the tank, the valve handle is removed from the stem, the plug is unscrewed and the stuffing box of the shut-off needle is changed. Later, all previously dismantled parts are returned to their places.

Video on the topic

Note!
During work, you need to consider that a blowtorch is a source of increased fire hazard. Consequently, during its repair, primary fire extinguishing means must be in close proximity to you.

Household blowtorches are used to heat containers with non-flammable liquids, repair work, soldering and heat treatment. They are systematized by the type of fuel used - gasoline, gas and kerosene. Gas blowtorches or burners are considered the most modern and comfortable to use. But gasoline fans zealously defend their judgment.

Instructions

1. High-tech gas blowtorches combine ergonomic design and high safety in use. They can work independently from disposable gas cylinders and from refillable ones. Punctuatable cylinders without a valve are quite cheap. The body of the lamp itself can be plastic or metal.

2. Universal gas lamps operate on 2 types of cylinders and are connected to them using threads. Such equipment is super compact, which makes it very convenient for storage and transportation. Another advantage of a multifunctional lamp is the likelihood of disconnecting gas cylinder at any moment.

3. Pay attention to the high-tech lamps that operate on the new KEMAP valve cylinders. These aluminum-bodied cylinders contain a special mixture liquefied gases Based on petroleum (LPG), it provides high soldering performance. Previously, this was achieved only by using acetylene. If you are a skilled solderer and welder, a lamp running on these cylinders is your choice.

4. Eat gas-burners, which also operate from domestic propane cylinders. They are very strong, loyal and have versatility when choosing a gas source. For work, use a hose of any length. For roofing works pick up lamp, which is equipped with a long nozzle and a lever for rapidly increasing the flame.

5. For those who like to make new electrical appliances, there are gas micro-soldering irons, and the gas container is located inside them. Before use, it is filled with gas from a lighter can. This is also good idea for a gift to a man with skillful hands.

6. Gasoline blowtorches provide hefty high temperature heating - up to 1100 degrees. The strength of its flame can be easily adjusted. Lamps that run on kerosene and second-grade gasoline are used to heat huge soldering irons and to work with hard solders.

7. Both lamps have some pros and cons, but there is a wonderful solution - a multi-fuel universal burner. It runs on any type of fuel from diesel to gas, but such a unit costs about 6-7 thousand rubles.

Energy-saving lamps are designed for lighting not only residential premises, but also social institutions. Their difference from other lamps lies in the content of 5 mg of mercury in the form of vapor, which, if not properly disposed of and processed, poisons the soil and air, which leads to irreversible consequences for human health and environment. Therefore, all users of energy-saving lamps should know the methods of their disposal.

Instructions

1. Take burnt-out energy-saving lamps to the regional DEZ or REU, where containers specially prepared for this must be installed. And from there they are sent to special enterprises, the main activity of which is the processing of energy-saving lamps.

2. If there are a lot of lamps, which is important for offices and enterprises, then it is best to conclude an agreement with a company that is engaged in the reception and subsequent disposal of waste containing mercury.

3. It is advisable to return energy-saving lamps in their original packaging. If it is not preserved, wrap the lamp in paper so that it does not break during transportation.

4. If a lamp breaks, then its fragments cannot be swept away with a broom or collected with a vacuum cleaner, so as not to disperse harmful mercury vapor throughout each apartment. Treat the area where the lamp was broken with a freshly prepared solution of potassium permanganate to bind mercury. After this, thoroughly ventilate the room in order to completely get rid of mercury fumes. Collect the remains of the lamp in a glass container, which will then need to be tightly closed with a lid, and hand it over to a specialized organization.

5. Disposal of energy-saving lamps is carried out in two ways. One of them is to wash, crush and further treat the used lamp with special chemicals that combine mercury into a no longer dangerous compound. Another method is thermal. A previously broken lamp is heated, resulting in the evaporation of mercury. Its vapors are condensed and collected in order to be used in the manufacture of new lamps.

Note!
The main thing to remember is that energy-saving lamps cannot be thrown into a garbage chute or container near your home.

Helpful advice
Mercury-containing waste, including energy-saving lamps, is disposed of, isolating it from the environment. It is under no circumstances possible to do this on your own.

The UV lamp is prepared for health-improving procedures. Ultraviolet irradiation has right action on processes occurring in the body, and also helps to improve the condition of certain diseases.

Instructions

1. The UV lamp is used to increase the body's resistance to infections (flu, ARVI, etc.), for the prevention and treatment of rickets in pregnant and lactating women, and children. It is used to treat pyoderma, pustular diseases of the skin and subcutaneous tissue, improve recovery processes in fractures, normalize immunity in chronic inflammation, stimulate hematopoiesis (the process of hematopoiesis), and compensate for lack of sun.

2. Dosed irradiation with a UV lamp has a positive effect on the body. The procedure regulates blood circulation, accelerates metabolism, increases immune activity, and promotes the functioning of protective mechanisms during epidemics of viral infections. The UV lamp has a negative effect on the retina of the eyes, so the procedure must be carried out with special glasses. Instead, you can place cotton pads on your eyelids. Some people, due to the characteristics of their body, are not able to tolerate unnatural radiation; therefore, their condition must be monitored during the procedure. UV therapy sessions are not suitable for people who experience dizziness, headaches, nervous irritation, etc. during irradiation.

3. Before the session, moderately treat the skin with cream or oil, apply it in a thin, even layer. Turn on the lamp and wait 5 minutes for it to warm up. Position work surface device at a distance of 10-50 cm from the body surface. If you need to carry out local irradiation of the skin, limit the diseased area from healthy ones using a towel or sheet. For local irradiation (say, the mucous membranes of the nose, throat), before turning on the lamp, install a special tube in the hole in the device screen.

4. The 1st session should last no more than 1 minute, after which you can begin to gradually increase the duration of the procedures up to 5 minutes. In order to prevent ARVI influenza, carry out ultraviolet irradiation of the mucous membranes of the nose and throat for 1 minute on each area. Every 3 days, increase the duration of the session by 1 minute until you reach 3 minutes. The course consists of 10 procedures. During the acute stage of the disease, irradiation is not carried out. Contraindications to the use of a UV lamp are the following ailments: severe kidney damage, heart damage with circulatory failure in the 3rd stage, coronary artery disease, stage II-III hypertension, severe exhaustion, tendency to bleed, anemia, skin diseases, hyperthyroidism. The UV lamp is not designed for tanning.

Video on the topic

Note!
Follow safety rules when operating and repairing a blowtorch.

Helpful advice
If the condition of the cuff on the rod is unsatisfactory, then be sure to replace it with a new one.

The blowtorch is heating device, with the help of which a high temperature is obtained during the flaming combustion of some initial flammable substances. Such substances used during operation of the device are:

petrol;
alcohol;
kerosene and some others.

A blowtorch will help you cope with a large number of tasks: heat a nut that cannot be unscrewed, heat up tar, etc.

The combustion products obtained during operation of the device form an elongated torch, and the temperature of the torch is very high.

The most common type is the gasoline blowtorch. In addition to this modification, blowtorches, in which the flame source is natural gas, have become widespread. This type of blowtorch differs from gasoline ones not only in the type of fuel burned during their operation, but also in design. The volume of tanks used for fuel in blowtorches can vary depending on the model of the device from 0.1 to 2 liters. Thermal power of these devices can vary in the range from 0.5 to 3 kW depending on the fuel supply. The lamp power is regulated using a special tap that opens the supply of the combustible substance.

Design of a gasoline blowtorch

In the design of a gasoline blowtorch, there are two main structural parts - a tank for storing fuel reserves and a burner.
An ejector is a device in which kinetic energy is transferred from one medium moving at a higher speed to another.

The burner is called an ejector. The ejector has a design that promotes the flow of air and decaying combustion products during the combustion process. The operating principle of this device is based on creating thrust due to fuel combustion.
A supply of fuel is poured into the tank, after which it is closed with a tight lid with a seal. The lid with a seal prevents fuel leakage during storage of the device, as well as during its operation. Gasoline storage tank is supplied pumping device allowing air to be pumped into the tank to create excess pressure in it. Excess pressure contributes to the transportation of gasoline from the tank to the burner during operation of the device.

A typical device contains the following structural elements:
fuel tank;

handle for holding the device during operation;

hermetically sealed fuel filler neck;

pump with valve - to create excess pressure in the tank;

siphon tube providing fuel supply to the evaporator;

a needle valve used to regulate the fuel supply;

evaporator;

nozzle;

ejector;

nozzle cleaning device.

The fuel filled into the device tank is consumables. The smokiness of the flame and the clogging of the nozzle depend on the quality of the fuel used; in addition, the degree of explosion hazard that occurs during the use of the device depends on the quality of the fuel. For normal operation of gasoline devices, it is necessary to use special gasoline or gasoline with an octane rating of at least 80. If low-quality fuel is used, the device may require repairs.

Technical characteristics of a gasoline-powered blowtorch

The design, configuration and weight of the blowtorch depends on the model.

A blow torch is useful in household tool. Tool models produced in Russia have different technical parameters and fuel consumption. There are several parameters that characterize these devices. In order to choose correctly suitable model tool you need to familiarize yourself with technical parameters products. General parameters for all devices are the following:

fuel tank capacity;

established indicator of maximum filling of the fuel tank;

maximum permissible pressure during operation;

fuel consumption;

tank diameter;

weight of the device without fuel;

availability of manufacturer's warranties;

device service life.

The technical characteristics of the device determine the popularity of blowtorch models. The most popular devices are those with a tank volume of about 2 liters. These models have an established maximum filling rate of around 1.5-1.8 liters, the maximum permissible pressure during operation is 0.3 MPa. The fuel consumption of most of the most common models is 1.2 liters per hour. The mass of such blowtorches in dry, unfilled form is about 2 kilograms. Most manufacturers of these products provide a one-year warranty on their products. The service life of most manufactured products Russian manufacturers is 5 years.

The principle of operation of a blowtorch

The blowtorch can run on kerosene and gasoline.

After refueling the device, air is pumped into the tank using a pump, which creates increased pressure inside the fuel cylinder. Overpressure air ensures the displacement of fuel into the burner, where it burns and forms a flame. To ignite the burner and ensure stable operation, it must be preheated to a certain level. To carry out heating, a fuel cup is used, which is mounted under the burner. The capacity of one cup is usually enough to heat the burner to the desired temperature.

When a certain burner heating temperature is reached, the fuel supplied from the reservoir to the burner evaporates in the evaporator. Gaseous fuel enters the combustion area and forms a flame through a special nozzle. During the combustion of evaporated fuel, oxygen is sucked into the combustion area and the process is maintained.

During the process of heating the burner, air is not pumped into the tank for safety reasons, and the shut-off valve must be closed at this moment. The shut-off valve opens only after the burner and evaporator have warmed up. After opening the shut-off valve, the flame strength is adjusted. After finishing work with the device, turn it off by screwing in the shut-off valve.

Product Application Areas

About ten years ago, this device was used in every case where it was necessary to heat surfaces or metal. This product was very often used in production, since most often there was no replacement for it. A blowtorch is used in cases where heating is required in the absence of alternative sources thermal energy or in the absence of the possibility of using modern technology.

The blowtorch is used for: heating the soldering iron tip, welding metal parts up to 1000 degrees, melting metal up to 900 degrees, for removing varnish coating, when heating frozen pipes.

Most often this device is used in the following situations:

if it is not possible to use during work electric soldering iron, the device allows you to perfectly heat up both the solder and the soldering iron tip;

if it is necessary to weld metal workpieces made of metals whose melting point is below 1000 degrees;

if necessary, carry out the melting of metal having a melting point below 900 degrees;

the tool is used when it becomes necessary to remove the varnish coating on the surface of objects made of metal;

when heating and thawing frozen water in water supply and sewerage pipes;

if it is necessary to carry out the operation of heating a car engine.

In some cases, a blowtorch is used to loosen bolts and other connections when disassembling them, if these connections are rusty. In addition, this device is used in agriculture when slaughtering livestock to resin animal skins.

Blowtorch Operating Instructions

Before using the device, you must read the instructions on how to use a blowtorch. You can use this device only after you have read the instructions.

The use of the device is only permissible outdoors. If there is an urgent need to use the device in closed space it can be used for a short time, followed by good ventilation.

When using the device, you must strictly follow the operating instructions.

Failure to follow safety precautions when working with a blowtorch can lead to its explosion and other dire consequences.

Before starting work, the device is refueled if necessary. The tank should be filled to three-quarters of its volume. An empty volume is required to create pressure during operation.

Excessive pressure must be created in the tank using a pressure pump built into the device. To create pressure, you will need to perform up to 10 gentle pumping motions.

After obtaining increased pressure, you need to pour fuel into the burner bath. It is best to use alcohol for this purpose, since this fuel does not produce a large amount of soot. The fuel poured into the bath is ignited to ensure initial heating of the burner evaporator. During the combustion of fuel in the bath, it is necessary to protect the device from drafts.

After combustion of the fuel poured into the bath stops, the needle valve is opened. The fuel coming from the evaporator must be gaseous - if droplets are detected in the fuel flow, the procedure for heating the burner evaporator should be repeated.

After receiving a jet of gaseous fuel, it is ignited. If necessary, the volume of incoming fuel can be adjusted using a needle valve. To speed up the process of completely warming up the burner, you can place the lamp near metal sheet, and the distance from the sheet to the burner nozzle should be 2-3 cm.

When carrying out work, monitor the state of the torch - you can increase or decrease it using a needle shut-off valve.

If there is instability in the operation of the burner or combustion damping occurs, it is necessary to clean the nozzle with a needle specially designed for this purpose.

After completion of work, the device torch is extinguished. Extinguishing the torch of the device is carried out by screwing the valve and lowering the needle. After the lamp has cooled, the air is bled from the tank.

When working with the tool, precautions should be taken.

Precautions required when working with a blowtorch

When working with a lamp, strict adherence to safety regulations is required. The fact is that violations of the rules for working with this device can provoke an explosion of the device. A blowtorch is a fire hazard. The fuel storage tank is located very close to the open flame of the torch.

When operating the device, the following rules must be observed:

It is prohibited to operate the tool if fuel leaks or fuel vapors are detected in the structure;

It is prohibited to use fuel during operation of a blowtorch that does not comply with the manufacturer’s recommendations;

It is prohibited to operate the device for a long time, since the close location of the burner provokes heating of the fuel cylinder above 50 degrees Celsius;

It is prohibited to use the device if a malfunction of the safety valve is detected;

Do not fill the tank with fuel while the burner is burning;

It is not recommended to use the device in enclosed spaces.

In addition, it should be said that failure to comply with almost any of the safety rules when working with a blowtorch can provoke an explosion and unpleasant consequences.

Following simple safety rules allows you to achieve maximum efficient work devices during operation.