RU70345U1 - GAS BURNER DEVICE - Google Patents

Abstract

The utility model relates to household appliances and is intended for the periodic combustion of natural gas in domestic heating furnaces equipped with gas. The gas burner device consists of: a frontal plate made of sheet steel, in the lower part of which a regulator for the supply of secondary air to the gas burner heads in the combustion zone of the gas-air mixture is made; automatic security systems; gas valve; gas tap with a mechanical lock. In the device, the stopcock and gas three-position valve are made in a common housing. The stop valve tap is perpendicular to the surface of the front flap, and its flywheel rotates in a plane parallel to the flap surface. The three-position gas valve is located so that the axis of the button is parallel to the plane of the front flap and is perpendicular to the axis of the distribution manifold. Combustible gas is supplied to the valve from below. On top of the gas valve parallel to the distribution manifold, a rotary lever-lock system for automatic safety is installed. The left locking lever rests against the front flap, to the right it is connected to the temperature sensor through the hole in the front flap and is pressed by the compression spring from the front flap along a guide fixed to the lever and passing through the hole in the front flap. The right end of the locking lever is inserted into the guide groove of the bracket for mounting the fuel gas supply system. The ignition burner is made with two rows of fire holes; the ignition and the main burners are fastened with two clamping clamps, which at the same time are the attachment point of the heat reflector to the front shield.

On the frontal shield and reflector of the gas burner thermal device, cuts are made diametrically opposite at the upper and lower points of the holes for installing gas and ignition burners, and on the tie clamps - figured protrusions.

The gas supply system for combustible gas consists of: a distribution manifold, a shut-off valve, a three-position gas valve, mounted on the front panel using two brackets, one of them with a guide groove for moving the locking lever of the automatic safety system, which is also the gas valve cover. The proposed technical solution facilitates and simplifies the operation of the device during its operation, adjustment, preventive maintenance, inspection and repair of the device. 3 s.p. f-ly, 3 ill.

Description

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 for periodically burning natural gas in domestic heating furnaces equipped with gas. A device consisting of a front cast-iron 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 98-100 [1]).

A disadvantage of the known device is:

- the complexity of the design of the gas burner, consisting of individual elements: a gas burner head and a mixing device, which in turn consists 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 heating furnaces;

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

- difficulties in servicing a gas crane.

The closest in technical essence to the claimed utility model is a gas burner device designed for the periodic combustion of natural gas in domestic heating furnaces equipped with gas [2]. A device consisting of a frontal shield made of sheet steel, in the lower part of which a series of holes are made providing 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 fire channels of the gas burner heads are made in two rows in the form of holes 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 the primary air. The automatic safety system consists of: a guide bracket;

carriage, fixed on the bracket with a locking screw, with an axis mounted on it for turning the locking lever. A mechanical lock is made on the gas cock, consisting of a T-shaped gas plug valve shank, a compression spring and a retaining cap with a rectangular hole in the bottom. On the frontal shield there is a regulator for supplying secondary air to the furnace furnace space [2].

However, this gas burner device has a number of disadvantages:

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

inconvenience of servicing the gas burner device due to the location of the mechanical gas valve and the stopcock on the manifold.

The technical result of the claimed utility model is to simplify the design of a gas burner device, increase assembly performance, ease of operation and maintenance

gas burner devices, the reliability of the automatic safety system and the creation of the best conditions for burning combustible gas in furnaces.

The technical result is achieved by the fact that the utility model "Gas burner device", designed for the periodic combustion of natural gas in domestic heating furnaces, consists of: a frontal sheet of steel sheet, in the lower part of which a regulator for supplying secondary air to the gas burner heads in the combustion zone of the gas-air mixture is made; gas burner heads with mixing devices, which are made of the pipe as a whole, by the method of plastic deformation, and the fire channels in the gas burner head are made in two rows in the form of holes with a diameter of 4.5 mm; a primary air ring regulator made in the form of a disk with protrusions located diametrically opposite to each other; automatic security systems; a gas valve installed so that its button is perpendicular to the plane of movement of the latch lever; stopcock with mechanical lock.

In the gas burner device, the shut-off valve and gas three-position valve are made in a common housing. In this case, the stop valve tap is perpendicular to the surface of the front flap, and its flywheel rotates in a plane parallel to the front flap surface. The three-position gas valve is located so that the axis of its button is parallel to the surface of the front flap and perpendicular to the axis of the distribution manifold, and the supply of combustible gas to it is carried out from below. On top of the gas valve parallel to the distribution manifold, a rotary lever-lock system for automatic safety is installed. The pivoting lever-lock of the automatic safety system rests on the frontal shield with the left end, to the right it is fixed through the hole in the frontal panel with a temperature sensor (combustion and traction control sensor) and is pressed by the compression spring from the frontal shield along the guide fixed to the lever and passing through the hole in the frontal shield. Right end

the locking lever is inserted through the groove of the guide bracket of the fastening system for the supply of combustible gas to the burners. The pilot burner is made with two rows of fire channels. The ignition and main burners are fastened with two special clamps, which are at the same time the attachment of the heat reflector to the front shield. For this purpose, on the frontal shield and thermal reflector at the upper and lower points of the circular holes for the gas and ignition burners, diametrically opposite cuts are made, and on the coupling clamps, in the indicated places, reciprocal protrusions.

The gas supply system for combustible gas consists of: a distribution manifold with nozzles and primary air regulators; three-position shut-off valve and gas valve. It is mounted on the front shield using brackets with tool holders and an arm with a guide groove for moving the locking lever in the horizontal plane and restricting its movement in the vertical plane, which is also the gas valve cover.

The essence of the utility model "Gas burner device" for domestic gas-fired heating stoves is illustrated by the drawings: where Fig. 1 shows a general view of a gas burner device; figure 2 is a top view of the gas burner device, figure 3 is a longitudinal sectional view of the combined valve three-way gas valve and stopcock.

The positions in the drawings indicate:

1. frontal shield;

2. collector (gas distributor)

3. gas mechanical valve;

4. common gas valve body and stopcock;

5. gas stopcock;

6. hole for supplying secondary air;

7. bracket with a tool tray for installing the gas supply system of the burners;

8. gas burner with a mixing device;

9. gas pipeline burner ignition;

10. ring primary air regulator;

11. protrusion of a coupling collar;

12. locking lever;

13. tensioning screw;

14. guide pin with compression spring;

15. inspection damper;

16. groove;

17. valve button;

18. cover - bracket;

19. thermal reflector;

20. thermal sensor (combustion and traction control sensor);

21. ignition burner;

22. screw;

23. the collar is figured;

24. nozzle;

25. pressure ring;

26. fixing screw;

27. the membrane is curly;

28. pressure plate;

29. o-ring;

30. thrust washer;

31. the upper cavity of the valve;

32. plate with stock;

33. spring lock;

34. support washer;

35. hole for the mechanical gas valve.

36. gas tap hole;

37. connecting channel;

38. protrusion of the ring;

39. lower cavity of the valve;

In order to improve the technical indicators of the utility model "Gas burner device" and reduce the cost of heating equipment

for individual use by reducing the consumption of material and the number of connecting elements of the pipelines of the gas supply system, a gas shut-off valve 5 and a mechanical gas valve 3 are made in one housing 4, FIG. 1, FIG. 2 and FIG. 3. In this case, the axis of the holes for the tap and valve are mutually perpendicular. The valve stem of the gas shut-off valve 5 is mounted perpendicular to the surface of the frontal flap 1. The flywheel of the valve 5 rotates in a plane parallel to the surface of the flap 1. This arrangement of the stop-cock 5 ensures its convenient operation.

In the monolithic body 4, two through holes were created, Fig. 3 (a hole 35 for a mechanical gas valve 3 and a hole 36 for a gas shut-off valve 5) with mutually perpendicular axes. The holes 35 and 36 communicate with each other through the created channel 37, connecting the side walls of the valve mechanical 3 and the stop valve 5.

In order to improve the working conditions of the mechanical valve 3 and the installation technology of its parts, the hole 35 for the mechanical gas valve in the common housing 4 is made of three stages. The step shape of the hole 35 of the valve of the mechanical 3 is created due to the protrusion of the annular 38. A channel is made in the protrusion of the annular 38 (not shown in FIG. 3). Combustible gas is supplied through this channel through the gas pipeline of the ignition burner 9 to the ignition burner 21 (see FIG. 2).

To ensure the tightness of the cavities of the upper 31 and lower 39 of the gas mechanical valve 3, saddles are made on the upper and lower surfaces of the protrusion of the annular 38.

The mechanical gas valve 3 consists (see Fig. 3): of a button 17, which serves to control the supply of combustible gas from the gas supply system through a shut-off valve 5 to the gas burners 8 (see Fig. 2) of the heating furnace; clamping ring 25 (figure 3); figured membranes 27; pressure plates 28 with o-ring 29; supporting washers 30, plates with a rod 32; locking spring 33; supporting washers 34. The hole 31 in the upper part of the mechanical valve 3 is an expanded channel (figure 3), which serves to lay the curly membrane 27 and install the ring

pressure 25. A button 17 is installed in the hole of the pressure ring 25, which rests on the figured membrane 27 and plate 28. The pressure ring 25 is fixed by the bracket 18 when securing the latter with fixing screws 26 to the housing 4.

From the bottom, a poppet 32 with a sealing washer and a rod is inserted into the opening 35 of the mechanical valve, which is inserted into the centering and guide socket of the support washer 30. The poppet 32 is supported by a lock (compression) spring 33, which is mounted on the support washer 34.

In the cavity of the lower 39 hole of the mechanical valve 35, a thread is made for connecting the gas burner device to the gas supply network with combustible gas.

The mechanical gas valve 3 is three-positioned so that the axis of the button is parallel to the plane of the frontal shield 1 and perpendicular to the axis of the gas distribution manifold 2. The supply of combustible gas to the mechanical gas valve 3 is carried out from below. This simplifies the supply of fuel gas to the gas burner device from the highway from either side.

To simplify the design and configure the automatic safety system, on top of the three-way gas valve 3 parallel to the distribution manifold 2, a rotary lever-lock 12 of the automatic safety system is installed. The left end of the lever-lock 12 abuts against the front shield 1. To the right, it is connected through a hole in the front shield 1 with a coupling screw 13 to a temperature sensor (combustion and traction control sensor) 20 and is pressed by a compression spring from the front shield along the guide pin 14 mounted on the the latch 12. The guide pin 14 passes through the hole in the front flap 1. The right end of the lever - latch 12 is inserted into the guide groove 16 in the cover bracket 18. The cover bracket 18 is also a gas valve cover 3 and is intended for I fasten the fuel gas supply system to the front shield 1. The groove 16 in the cover-bracket 18 is intended for

the movement of the locking lever 12 in a horizontal position and prevents it from moving vertically.

In order to reduce the time and reliability of ignition of the furnace, the ignition burner 21 is made with two rows of fire channels.

Fastening the ignition burner 21 and gas burners with the mixing device 8 is carried out by two curly clamps 23, which are simultaneously the attachment point of the thermal reflector 19 to the front panel 1.

The front flap 1 and the heat reflector 19 with the pilot burner 21 and the gas burners 8 with the mixing devices are fastened with two curly clamps 23. Two curly clamps 23 are installed between the front 1 flap and the heat reflector 19. By bending the protrusions 11 of the clamps in the places of the cuts in the front shield 1 and the thermal reflector, the front shield 1 and the thermal reflector 19 are pressed against the end surfaces of the curly clamps 23. Two screws 22 are used to tighten the curly clamps 23 from the same time exchange fixing gas burners 8 and ignition burners 21. This simplifies the assembly technology, reduces the number of fasteners used.

The gas supply system with combustible gas consists of: a distribution manifold 2 with replaceable nozzles 24 and primary air regulators 10; shut-off valve 5, combined in one housing with a mechanical gas valve 3, and installed on the front panel 1 using two brackets with lodgements and a cover-bracket 18. This design of the gas supply system with combustible gas reduces the number of detachable connections, which provides more reliable sealing of gas pipelines and simplifies the assembly technology of a gas burner device.

The device operates as follows. Checks the presence of draft in the chimney. The tap on the gas pipeline opens. A match or paper harness is lit. Presses the start button 17 of the valve of the gas mechanical 3 to failure, Fig.1. This closes the upper cavity 31 of the valve mechanical 3 and the combustible gas from the lower cavity 35 through the holes in the annular protrusion 38, through the gas line of the ignition burner 9 enters the mixer ignition burner 21, Fig.2.

At the same time, through the inspection gate 15, bring the lit torch to the ignition burner 21, Fig.2. The gas-air mixture exiting from the channels (openings) of the ignition burner is ignited by the torch, and the flame of the ignition burner heats the temperature sensor 20 of the burner device. When heated, the length of the temperature sensor 20 increases. The locking lever 12, connected by a tension screw 13 to the temperature sensor 20, FIG. 2, moves away from the frontal shield 1 under the action of a compression spring mounted on the guide pin 14. The right free end of the locking lever 12 finds on the pressed start button 17 of the mechanical gas valve 3 Fig. 1. With a stable flame of the ignition burner, the gas valve button 17 is held pressed until the locking lever 12 finds at least one third of the diameter of the end surface of the valve button 17. After that, pressing and holding the trigger button of the valve 17 with the finger stops. 17 is lifted and fixed by the lever with the latch 12. In this position, the pressure plate 28 under the action of the locking spring 33 rises and through the curly membrane 27 presses the button 17 to the locking lever 12. The combustible gas from the opening 35 enters the valve cavity is upper 31 and through the channel 37 to the stopcock 5. Then the stopcock 5 is opened and combustible gas is supplied through the manifold (gas distributor) 2 and nozzles 24 to the mixing devices of the gas burners 8, in which the gas-air mixture is formed. Further, at the outlet of the openings of the fired gas burners, the gas-air mixture is ignited by the ignition burner 21, with the formation of torches above each hole.

To ensure the best conditions for fuel combustion

the primary air is regulated by the primary air ring regulator 10, by rotating the regulator until a blue-blue flame appears on the burner head, and the amount of secondary air is set by calibrated hole sizes 6 located on the front panel 1.

If the gas supply to the device is suddenly turned off or there is no draft in the furnace chimney (provided by the furnace design), the flame extinguishes on the ignition burner 21. The length of the temperature sensor 20 decreases. The locking lever 12 moves to the front flap 1 and comes off the end surface of the button 17. Button 17 is released from

restrictions on movement in the vertical direction. Under the action of the spring 33, the plate with the rod 32 is pressed against the lower saddle of the protrusion of the annular 38 and the access of combustible gas to the burners 8 and 21 ceases. To turn on the gas burner, it is necessary to re-ignite. At the end of the furnace process, the shut-off valve 5 and the valve on the gas supply pipe to the heating furnace are closed.

An example of using the device. The proposed utility model "gas burner device" has found application in a gas burner device for heating furnaces of the type UGOP-P-9-III, UGOP-P-16-III and UGOP-P-22-III, respectively, for a rated power of 9, 16 and 22 kW at the nominal working pressure of natural gas in the network is 1274 Pa (130 mm water supply), 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 the main and pilot burners in the absence of draft in the chimney and the flame goes out.

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, 1985.368p.

2. Gas burner device (Description of the utility model) RU 37545 U1 7F23D 14/02, Bull. No.12 04/27/2004

Claims (3)

1. A gas burner device for periodically burning natural gas in domestic heating furnaces, consisting of a frontal sheet steel plate, in the lower part of which there is a regulator for the supply of secondary air to the gas burner heads in the combustion zone of the gas-air mixture, and the gas burner head and mixing device are made of pipe like whole by stamping method, while 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 With protrusions located diametrically opposite to each other, the automatic safety system includes a guide bracket; a carriage fixed to the bracket with a guide screw, with an axis mounted on it for rotation of the rotary latch lever in a horizontal plane, and a gas valve is installed so that its button is perpendicular to the plane of movement of the latch lever; gas cock with a mechanical lock, characterized in that the stopcock and gas three-position valve are made in a common housing, while the stopcock tap is perpendicular to the surface of the front flap, and its flywheel rotates in a plane parallel to the flap surface; a three-position gas valve is located so that the axis of the button is parallel to the plane of the front flap and perpendicular to the axis of the distribution manifold, and the supply of combustible gas to it is carried out from below; on top of the gas valve, in parallel to the distribution manifold, there is a rotary lever-lock of the automatic safety system, which rests against the front shield with the left end, to the right it is connected to the temperature sensor through the hole in the front shield and is pressed by the compression spring from the front shield along the guide fixed to the lever and passing through the hole in the front shield, the right end of the locking lever is inserted into the guide groove of the bracket for attaching the fuel gas supply system; the ignition burner is made with two rows of fire holes; the ignition and the main burners are fastened with two clamping clamps, which are also the attachment point of the heat reflector to the front shield. 2. The gas burner device according to claim 1, characterized in that notches are diametrically opposite at the upper and lower points of the openings for the gas and ignition burners on the frontal shield and thermal reflector, and figured protrusions on the tie clamps. 3. The gas burner device according to claims 1 and 2, characterized in that the gas supply system with combustible gas, consisting of a distribution manifold, a shut-off valve, three-position gas valve, is installed on the front shield with two brackets, one of them with a guide groove for moving the locking lever automatic safety systems, which at the same time is a gas valve cover.