RU37545U1 - GAS BURNER DEVICE - Google Patents

Abstract

1. A gas burner device for periodically burning natural gas in domestic heating furnaces, consisting of a cast iron frontal shield with a heat reflector, and low-pressure injection burners mounted on it, each of which includes a gas burner head with two rows of openings with a diameter of 4 mm in increments of 15 mm and a mixing device, in the end part of which a nozzle for supplying combustible gas with an annular primary air regulator is installed, an automatic safety system including I have a mechanical valve, a temperature sensor, a locking lever with a spring, an adjusting bracket and an injection igniter, gas pipelines with connecting parts, a gas valve, characterized in that the front shield is made of sheet steel, in the lower part of which there are a number of holes providing a metered supply of secondary air to the gas burner heads in the combustion zone of the gas-air mixture, and the gas burner head and the mixing device are made of a pipe as a whole by plastic deformation, while from The holes in the gas burner head are made in two rows with a diameter of 4.5 mm, the primary air ring regulator is made in the form of a disk with protrusions located diametrically opposite to each other, a guide bracket is introduced into the automatic safety system, a carriage fixed to the bracket with a lock screw, mounted on an axis for turning the locking lever, and a mechanical lock is made on the gas cock, consisting of a T-shaped gas plug valve shank, a compression spring, and a locking cap with

Description

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Gas burner device

The utility model relates to household appliances and is intended for the periodic combustion of natural gas in domestic heating furnaces equipped with gas.

A gas burner device is known, comprising: a front shield with an eye for ignition; burner heads with mixers and protective automatic device. Moreover, the burner head is a cast iron with three rows of holes with a diameter of 4 mm, drilled along its entire length. The mixer consists of three series-connected elements: a suction chamber, a neck and a diffuser. The protective automatic device consists of a solenoid valve, an igniter and a thermocouple. The thermocouple simultaneously performs the functions of a traction sensor.

The principle of operation of a gas burner device is as follows. Through the peephole for ignition of the burner, bring the lit torch to the igniter and at the same time, almost simultaneously, press the start button of the electromagnetic valve. In the presence of draft in the furnace at the exit of the pilot tube, a stable burning small gas flame is formed. During normal operation, the thermocouple heats up after 20 - 25 s. After that, the valve button is released and the trigger mechanism of the electromagnetic valve is activated,

6F23 D 14/02

allows gas access to the burners. The gas-air mixture when exiting the burner head is ignited by the igniter flame (see 1 p. 96 - 100.)

A disadvantage of the known device is: the relative fragility of the thermocouple, requiring additional costs for its maintenance; the absence of a thermal reflector leads to heating of the front shield to relatively high temperatures, which can lead to burns; inconvenience of setting it to an economical mode of operation depending on the state of the surrounding air. With insufficient amounts of primary air in the gas-air mixture and secondary air in the furnace combustion space, incomplete combustion of combustible gas occurs, which leads to the formation of soot substances, an increased content of carbon monoxide and nitrogen oxides in the combustion products, and a decrease in the efficiency of the heating furnace.

The closest in technical essence to the claimed utility model is a gas burner device designed for periodic combustion of natural gas in domestic heating furnaces equipped with gas. A device consisting of a cast-iron frontal shield with a heat reflector, with low-pressure injection burners mounted on it, an automatic safety system, gas pipelines with connecting parts, a gas tap (see pages 55 - 57 2).

However, this gas burner device has a number of disadvantages: - the complexity of the gas burner design, consisting of individual elements: a gas burner head and a mixing device, which, in turn, consist of separately manufactured confuser, neck and diffuser;

- the inconvenience of regulating primary air due to the unsuccessful design of the ring regulator and the inability to supply secondary air, which reduces the efficiency of the heating furnace;

- the difficulty of adjusting the lever - the latch of the automatic security system due to the large number of degrees of freedom between its details

- difficulties in servicing a gas crane.

The technical result of the claimed utility model is to increase the convenience of operation and maintenance of gas burner devices and create the best conditions for burning combustible gas in furnaces.

The technical result is achieved by the fact that a gas burner device for periodically burning natural gas in domestic heating furnaces, according to a utility model, consisting of: a front cast iron shield with a heat reflector, with low-pressure injection burners mounted on it, each of which includes a gas burner head with two rows of holes with a diameter of 4 mm with a pitch of 15 mm and a mixing device, in the end part of which there is a nozzle with a ring regulator of primary air; automatic safety systems, including a mechanical valve, temperature sensor, spring retainer lever, adjustment bracket and injection igniter; gas pipelines with connecting parts; gas tap. The front shield is made of sheet steel, in the lower part of which a number of holes are made, ensuring a metered supply of secondary air into the furnace furnace space. The gas burner head and the mixing device are made of pipe as a whole by plastic deformation, and the holes in the gas burner head are made in two rows with a diameter of 4.5 mm. The primary air ring regulator is made in the form of a disk with protrusions located diametrically opposite to each other, facilitating the adjustment of primary air. Into an automatic safety system are entered: guide bracket; a carriage fixed to the bracket with a locking screw, with an axis mounted on it, on which the locking lever is rotated; mechanical lock, consisting of a T - shaped shank of a cork gas valve, a compression spring and a retaining cap with a rectangular hole in the bottom. To the visor

a frontal regulator for supplying secondary air to the furnace furnace space is installed.

The essence of the utility model is a gas burner device for domestic gas-fired heating stoves, which is illustrated by the drawings: where Fig. 1 shows a general view of a full-time gas burner; figure 2 is a sectional view of the burner head with a mixer of a gas burner device, figure 3 is the relative position of the guide bracket, carriage and locking lever, figure 4 is a mechanical lock, figure 3 is a secondary air regulator.

The positions in the drawings indicate:

1. frontal shield;

2. thermal reflector;

3. inspection damper;

4. gas burner with a mixing device;

5. tension spring;

6. collector (gas distributor);

7. Ring primary air regulator;

8. mechanical gas valve;

9. gas cock;

10. bracket for mounting the manifold (gas distributor);

11. ignition burner;

12. thermal sensor;

13. guide bracket;

14. carriage;

15. Lever-lock;

16. valve button;

17. gas pipeline ignition burner;

18. regulator of supply of secondary air;

19. nozzle;

20. axis of rotation of the lever - latch;

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23. guide screw;

24. locking screw;

25. fire hole;

26.confuser;

27. neck;

28. diffuser;

29. hole for the supply of secondary air;

30. shank cork gas valve;

31. longitudinal groove;

32. guides;

33.washer;

34.handle;

35. burner head.

In order to improve the technical parameters of the utility model, a gas burner device containing gas burners 4, Fig. 1, each of which consists of a head 35, Fig. 2 and a mixing device. In turn, the mixing device consists of a confuser 26, a neck 27, a diffuser 28, combined with the head 35, by manufacturing from a pipe by plastic deformation. Fire holes 25 in the gas burner head 35 are made in two rows with a diameter of 4.5 mm instead of fire holes with a diameter of 4 mm, which allows you to set the rated heat output of the gas burner device to 22 kW by changing nozzles 19c with a different internal diameter of the combustible gas supply channel; adjust the heat load of the furnace, ensuring optimal conditions for burning the gas-air mixture with its high efficiency.

For convenience and a more accurate adjustment of the automatic safety system, a node has been introduced, Fig. H, consisting of: a guide bracket 13, along which the carriage 14 moves with the axis 20 mounted on it, on which the locking lever 15 is rotated. The carriage 14 moves along the guide rail 13 and through the longitudinal guide groove 31 is fixed by a screw guide 23. On the gas valve 9 (figure 1) made a mechanical lock, figure 4, designed to fix the details of the valve. The mechanical lock consists of: a shank of a cork shut-off gas

crane 30, made T - shaped; compression springs 21; cap fixing 22 with a rectangular hole in its bottom.

The device operates as follows. Checks the presence of draft in the chimney. The faucet on the supply gas line of the gas burner of the internal device opens. A match or a paper harness lights up. Opens

at the same time the inspection flap 3 and the lit torch is brought to the ignition burner 11. The start button of the gas mechanical valve 8 is pressed, Fig. 1, to failure. In this case, the combustible gas is supplied through the gas valve 8 to the ignition burner mixer I. Then the air-gas mixture leaving the openings of the ignition 11 burner is ignited from the raised flame and the flame of the ignition burner heats the temperature sensor 12. When heated, the length of the temperature sensor 12 increases. The locking lever 15 connected by the locking screw 24 to the temperature sensor 12, Fig. 3, rotates around an axis 20 mounted on the carriage 14. The free end of the locking lever 15 is shifted away from the frontal shield 1 and is located on the pressed trigger button of the gas mechanical valve 8, Fig. .1. With a steady flame of the pilot burner, the gas mechanical valve button 8 is held pressed until the locking lever 15 finds at least one third of the diameter of the valve button 16. After that, the finger holding the valve button 16 stops, since it is already locked the locking lever 15. In this position, the mechanical gas valve 8 passes gas to the manifold (gas distributor) 6. Then the gas valve 9 opens and combustible gas is fed through the nozzle 19 to the mixing device of the gas burner 4, in which air-gas mixture is formed. Further, at the outlet of the firing holes 25, FIG. 2, the gas burner, the gas-air mixture is ignited by the ignition burner 11, with the formation of torches above each hole 25 in the gas burner 4.

To ensure the best conditions for fuel combustion, primary air is regulated by a ring regulator 7, by moving the regulator through the nozzle 19 until a blue flame appears on the burner head, and the amount of secondary air is set by calibrated hole sizes located on the front

is set by the regulator for supplying secondary air 18 to the furnace furnace space, Fig. 5, due to a change in the cross section of the holes 29 of the frontal shield 1 by moving the secondary air regulator 18 along the guides 32. When the gas burner device is turned off, the gas valve on the supply gas pipeline is closed.

An example of using the device. The proposed utility model, a gas burner device has found application in a gas burner device for heating furnaces of the type UGOP-P-9-Sh, UGOP-P-16-Sh and UGOP-P-22-Sh, respectively, for a rated power of 9 ± 0.45, 16 ± 0 , 8 and 22 ± 1.1 kW at a nominal working pressure of natural gas in the network of 1274 Pa (130 mm water column), intended for periodic combustion of gas in heating furnaces equipped with gas. These devices provide heating of rooms of appropriate volumes.

Safety automation stops the gas supply to gas burners with a mixing device and an ignition burner if there is no draft in the chimney and the flame goes out on the ignition burner.

The proposed technical solution facilitates and simplifies the operation of the device during its operation; adjustment, prophylaxis, inspection and repair of the device.

1.Sosnin Yu.P., Bukharkin E.N. Household stoves, fireplaces and water heaters. - M.: Stroyizdat, 1985.368 s.

2.Bogomolov A.I., Tikhonov B.S., Kutnik S.E. Conversion of household heating and water heating appliances to gas fuel. - M .: Publishing house of building literature, 1996. 204 p.

Applicant:

Director of the Limited Partnership Chernoivanov and Company Taganrog Mechanical Plant B.C. Chernoivanov

Claims (2)

1. A gas burner device for periodically burning natural gas in domestic heating furnaces, consisting of a cast iron frontal shield with a heat reflector, and low-pressure injection burners mounted on it, each of which includes a gas burner head with two rows of openings with a diameter of 4 mm in increments of 15 mm and a mixing device, in the end part of which a nozzle for supplying combustible gas with an annular primary air regulator is installed, an automatic safety system including I have a mechanical valve, a temperature sensor, a locking lever with a spring, an adjusting bracket and an injection igniter, gas pipelines with connecting parts, a gas valve, characterized in that the front shield is made of sheet steel, in the lower part of which there are a number of holes providing a metered supply of secondary air to the gas burner heads in the combustion zone of the gas-air mixture, and the gas burner head and the mixing device are made of a pipe as a whole by plastic deformation, while from The holes in the gas burner head are made in two rows with a diameter of 4.5 mm, the primary air ring regulator is made in the form of a disk with protrusions located diametrically opposite to each other, a guide bracket is introduced into the automatic safety system, a carriage fixed to the bracket with a lock screw, mounted on an axis for turning the locking lever, and a mechanical lock is made on the gas cock, consisting of a T-shaped gas plug valve shank, a compression spring, and a locking cap with rectangular hole in the bottom. 2. The device according to claim 1, characterized in that the frontal flap is equipped with a regulator for supplying secondary air to the furnace furnace space.