Novel energy-saving burner

Abstract

The utility model provides a novel energy-saving burner which comprises a burner body, a flame outlet hole and an exhaust hole are formed in the burner body, a gas channel, a gas inlet channel and an exhaust channel are arranged in the burner body, the gas channel and the gas inlet channel are communicated with the flame outlet hole, and the exhaust channel is communicated with the exhaust hole. A heat exchange body is connected to the burner body, a plurality of air inlet pipe sets and exhaust pipe sets extending in the height direction of the heat exchange body are arranged in the heat exchange body, and the air inlet pipe sets and the exhaust pipe sets are arranged alternately. The air inlet pipe set is communicated with the air inlet channel, and the exhaust pipe set is communicated with the exhaust channel. Heat of waste gas exhausted from the exhaust port can be transmitted to the heat exchange body when the waste gas passes through the exhaust pipe set, and then combustion air passing through the gas inlet pipe set is preheated, so that the heat of the waste gas is recycled, the gas consumption is reduced, and the requirements of energy conservation and emission reduction are met; meanwhile, as the entering combustion-supporting air is preheated, the temperature difference fluctuation in the combustion chamber can be reduced, and the heat treatment effect of the metal is guaranteed.

Description

Technical Field

[0001] The utility model relates to the technical field of burners, and specifically relates to a new type of energy-saving burner nozzle. Background Art

[0002] A burner nozzle is a combustion device on an industrial combustion furnace, which usually includes a burner nozzle body. One end of the burner nozzle body facing the combustion chamber has a flame outlet and an exhaust port. Inside the burner nozzle body, there are an air inlet pipe and a gas pipe connected to the flame outlet. The fuel output by the gas pipe and the combustion-supporting air output by the air inlet pipe are mixed and burned at the flame outlet, so as to perform heat treatment on the metal in the combustion chamber. The waste gas generated during combustion will be discharged through the exhaust port, so as to ensure the combustion effect.

[0003] However, when the waste gas generated in the combustion chamber is discharged through the exhaust port, it will carry a large amount of heat out of the combustion chamber, thus affecting the temperature in the combustion chamber. Coupled with the fact that the temperature of the combustion-supporting air input by the air inlet pipe is much lower than the temperature in the combustion chamber, it further leads to a relatively large temperature difference fluctuation in the combustion chamber, affecting the heat treatment effect of the metal; in addition, the large amount of heat carried away by the waste gas will also cause the thermal efficiency of the burner nozzle to be low, thereby increasing the gas consumption and affecting the requirements of energy conservation and emission reduction. Summary of the Utility Model

[0004] The technical problem to be solved by the utility model is to provide a new type of energy-saving burner nozzle that can reduce the temperature difference fluctuation during combustion and has a high thermal efficiency.

[0005] The technical solution of the utility model is to provide a new type of energy-saving burner nozzle with the following structure:

[0006] It includes a burner nozzle body. An end face of the burner nozzle body is provided with a flame outlet hole and an exhaust hole. Inside the burner nozzle body, there are a gas channel, an air inlet channel and an exhaust channel. The gas channel and the air inlet channel are connected to the flame outlet hole, and the exhaust channel is connected to the exhaust hole; a heat exchange body extending vertically upward is connected to the burner nozzle body. An air inlet and an exhaust outlet are provided at the top of the heat exchange body. Inside the heat exchange body, there are a plurality of air inlet pipe groups and exhaust pipe groups extending along the height direction of the heat exchange body. The air inlet pipe groups and the exhaust pipe groups are arranged alternately; one end of the air inlet pipe group is connected to the air inlet, and the other end is connected to the air inlet channel; one end of the exhaust pipe group is connected to the exhaust outlet, and the other end is connected to the exhaust channel.

[0007] After adopting the above structure, compared with the prior art, the new type of energy-saving burner nozzle of the utility model has the following advantages:

[0008] By arranging an intake pipe group and an exhaust pipe group alternately inside the heat exchanger body, the waste gas discharged from the exhaust port will transfer heat to the heat exchanger body when passing through the exhaust pipe group. When the combustion-supporting air from the outside passes through the intake pipe group, the heat exchanger body heated by the waste gas will preheat the combustion-supporting air, thereby realizing the recovery of the waste gas heat, reducing the gas consumption, and meeting the requirements of energy conservation and emission reduction. At the same time, since the incoming combustion-supporting air is preheated, the temperature difference fluctuation in the combustion chamber can be reduced, ensuring the heat treatment effect of the metal.

[0009] Preferably, an intake cavity is provided at the lower end of the heat exchanger body. The upper and lower ends of the intake cavity are respectively connected to the intake channel and the intake pipe group, so that the intake channel is connected to each intake pipe group through the intake cavity. A number of corundum columns are provided in the intake cavity to support the intake cavity. Since the intake pipe group is evenly distributed inside the heat exchanger body, through the transition of the intake cavity, not only can each intake pipe group be connected to the intake channel, but also the inner diameter of the intake channel can be adjusted according to needs to avoid its size being too large.

[0010] Preferably, an exhaust cavity is also provided at the lower end of the heat exchanger body. The upper and lower ends of the exhaust cavity are respectively connected to the exhaust channel and the exhaust pipe group, so that the exhaust channel is connected to each exhaust pipe group through the exhaust cavity. Through the transition of the exhaust cavity, each exhaust pipe group can be connected to the exhaust channel, enabling the waste gas in the exhaust channel to be discharged from each exhaust pipe group, thereby evenly transferring heat to the heat exchanger body.

[0011] Preferably, the intake pipe group consists of three intake pipes arranged at intervals, and the exhaust pipe group consists of three exhaust pipes arranged at intervals.

[0012] Preferably, the exhaust cavity is located above the intake cavity, and corundum ceramic tubes are sleeved on the intake pipes passing through the exhaust cavity. The corundum ceramic tubes protect the intake pipes from being polluted by the waste gas, and at the same time, the corundum ceramic tubes also facilitate the processing of the intake pipes inside the heat exchanger body.

[0013] Preferably, there are two exhaust holes, which are symmetrically arranged on both sides of the flame outlet hole; there are also two exhaust channels, and one end of these two exhaust channels is connected to the exhaust cavity, and the other end is connected to the corresponding exhaust hole.

[0014] Preferably, the heat exchanger body is made of a plastic refractory material.

[0015] Preferably, an ignition component is provided in the flame outlet hole for igniting the gas. The ignition component can ignite the mixed gas of gas and air to ensure the combustion of the flame. A temperature sensor can also be set on the ignition component to detect whether there is flameout, so as to be able to close the gas channel in time when there is flameout and avoid accidents.

[0016] Preferably, the ignition assembly includes an igniter and a sleeve sleeved on the igniter. The sleeve is arranged with a gap from the outer peripheral wall of the igniter to form the gas channel. A plurality of groups of gas holes communicating with the gas channel are annularly distributed at one end of the outer peripheral wall of the sleeve close to the ignition port of the igniter. A flow guide vane is arranged on the sleeve between adjacent two groups of gas holes. The flow guide vane has a flow guiding effect, which helps the mixing combustion of gas and air and improves the combustion efficiency.

[0017] Preferably, a smoke exhaust, combustion assisting and distributing device is arranged on the heat exchange body. The smoke exhaust, combustion assisting and distributing device includes a distributor body and a distributor cover plate. The distributor body has an inner cavity, and the air inlet communicates with the inner cavity of the distributor body. A first through hole corresponding to the intake pipe group one by one is arranged at the bottom of the distributor body, and the first through hole is used for communicating the intake pipe group with the inner cavity of the distributor body. A second through hole corresponding to the exhaust pipe group one by one is arranged at the bottom of the distributor body, and the second through hole penetrates through the upper and lower end faces of the distributor body. A third through hole corresponding to the second through hole one by one is arranged on the distributor cover plate. The exhaust pipe group, the second through hole, the third through hole and the exhaust port are communicated in sequence. The smoke exhaust, combustion assisting and distributing device is made of aluminum metal, which is not only strong and durable but also easy to conduct heat. Description of the Drawings

[0018] Figure 1 It is a schematic structural diagram of the present utility model.

[0019] Figure 2 It is a half-sectional view of the present utility model in the X-axis direction.

[0020] Figure 3 It is a schematic sectional structural diagram of the present utility model in the X-axis direction.

[0021] Figure 4 It is a half-sectional view of the present utility model in the Y-axis direction.

[0022] Figure 5 It is a schematic structural diagram of the heat exchange body in the present utility model.

[0023] Figure 6 It is a schematic structural diagram of the ignition assembly in the present utility model.

[0024] Figure 7 It is an exploded structural diagram of the smoke exhaust, combustion assisting and distributing device in the present utility model.

[0025] Description of the Reference Numerals:

[0026] 1. Burner body, 11. Flame outlet hole, 12. Exhaust hole, 13. Gas channel, 14. Intake channel, 15. Exhaust channel, 2. Heat exchange body, 21. Intake port, 22. Exhaust port, 23. Intake pipe group, 231. Corundum ceramic pipe, 24. Exhaust pipe group, 25. Intake cavity, 251. Corundum column, 26. Exhaust cavity, 27. Smoke exhaust and combustion-supporting distributor, 271. Distributor body, 2711. Second through hole, 272. Distributor cover plate, 2721. Third through hole, 3. Ignition assembly, 31. Igniter, 32. Sleeve, 321. Gas hole, 322. Deflector. Detailed implementation manners

[0027] The following further elaborates on the present utility model in detail with reference to the accompanying drawings and specific embodiments.

[0028] In the description of the present utility model, it should be understood that the orientation or positional relationships indicated by the terms "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc. are based on the orientation or positional relationships shown in the accompanying drawings. These are only for the convenience of describing the present utility model and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation. Therefore, it should not be construed as a limitation to the present utility model. At the same time, terms such as "first", "second", etc. are only used to distinguish the names of various components and do not have a primary-secondary relationship. Therefore, it should not be construed as a limitation to the present utility model.

[0029] As Figure 1 , Figure 2 , Figure 3 , Figure 4 , Figure 5 , Figure 6 and Figure 7 shown;

[0030] The present utility model discloses a new type of energy-saving burner, including a burner body 1 and a heat exchange body 2 connected to the top of the burner body 1. The heat exchange body 2 extends vertically upward along its height direction.

[0031] One end face of the burner body 1 is provided with a flame outlet hole 11 and an exhaust hole 12. Inside the burner body 1, there are a gas channel 13, an intake channel 14, and an exhaust channel 15. The gas channel 13 and the intake channel 14 are connected to the flame outlet hole 11, and the exhaust channel 15 is connected to the exhaust hole 12.

[0032] The top of the heat exchange body 2 is provided with an intake port 21 and an exhaust port 22. An intake fan (not shown in the figure) and an exhaust fan (not shown in the figure) are respectively provided on the intake port 21 and the exhaust port 22.

[0033] Inside the heat exchange body 2, there are several intake pipe groups 23 and exhaust pipe groups 24 extending along the height direction of the heat exchange body 2. The intake pipe groups 23 and the exhaust pipe groups 24 are arranged alternately along the X-axis direction and the Y-axis direction. One end of the intake pipe group 23 is connected to the air inlet 21, and the other end is connected to the intake passage 14. One end of the exhaust pipe group 24 is connected to the exhaust port 22, and the other end is connected to the exhaust passage 15.

[0034] By arranging the alternately arranged intake pipe groups 23 and exhaust pipe groups 24 inside the heat exchange body 2, the waste gas discharged from the exhaust port 22 will transfer heat to the heat exchange body 2 when passing through the exhaust pipe group 24. When the combustion-supporting air from the outside passes through the intake pipe group 23, the heat exchange body 2 heated by the waste gas will preheat the combustion-supporting air, thereby realizing the recovery of the waste gas heat, reducing the gas consumption, and meeting the requirements of energy conservation and emission reduction. At the same time, since the incoming combustion-supporting air is preheated, the temperature difference fluctuation in the combustion chamber can be reduced, ensuring the heat treatment effect of the metal.

[0035] An intake cavity 25 is provided at the lower end of the heat exchange body 2. The upper and lower ends of the intake cavity 25 are respectively connected to the intake passage 14 and the intake pipe group 23, so that the intake passage 14 is connected to each intake pipe group 23 through the intake cavity 25.

[0036] Since the intake pipe groups 23 are evenly distributed inside the heat exchange body 2, through the transition of the intake cavity 25, not only can each intake pipe group 23 be connected to the intake passage 14, but also the inner diameter of the intake passage 14 can be adjusted according to needs to avoid its size being too large. Several corundum columns 251 are also provided inside the intake cavity 25 to play a role in supporting the intake cavity 25.

[0037] An exhaust cavity 26 is also provided at the lower end of the heat exchange body 2. The upper and lower ends of the exhaust cavity 26 are respectively connected to the exhaust passage 15 and the exhaust pipe group 24, so that the exhaust passage 15 is connected to each exhaust pipe group 24 through the exhaust cavity 26.

[0038] Through the transition of the exhaust cavity 26, each exhaust pipe group 24 can be connected to the exhaust passage 15, so that the waste gas in the exhaust passage 15 can be discharged from each exhaust pipe group 24, thereby uniformly transferring heat to the heat exchange body 2.

[0039] The intake pipe group 23 is composed of three intake pipes arranged at intervals, and the exhaust pipe group 24 is also composed of three exhaust pipes arranged at intervals. The cross-sections of the intake pipes and the exhaust pipes can be circular, or can be straight groove-shaped, keyway-shaped or polygonal, etc. In the X-axis direction, the three intake pipes of the intake pipe group 23 are arranged parallel to the three exhaust pipes of the adjacent exhaust pipe group 24. In the Y-axis direction, the three intake pipes of the intake pipe group 23 and the three exhaust pipes of the adjacent exhaust pipe group 24 are located on the same straight line.

[0040] The exhaust cavity 26 is located above the intake cavity 25, and corundum ceramic tubes 231 are sleeved on the intake pipes passing through the exhaust cavity 26; the corundum ceramic tubes 231 protect the intake pipes and prevent the air in the intake pipes from being polluted by the exhaust gas.

[0041] The heat exchange body 2 is made of plastic refractory material. During production and processing, first, columnar bodies that are soluble at high temperatures (such as foam plastics, etc.) are evenly arranged in the mold. High-temperature soluble materials are also filled in the positions where the intake cavity 25 and the exhaust cavity 26 are located. Then, plastic refractory material is injected into the mold. After the plastic refractory material is shaped, the heat exchange body 2 is heated at high temperature to melt and flow out the high-temperature soluble materials, thereby forming the intake pipe group 23, the exhaust pipe group 24, the intake cavity 25, and the exhaust cavity 26 inside the heat exchange body 2.

[0042] When processing the heat exchange body 2, it is also necessary to sleeve the corundum ceramic tube 231 on the high-temperature soluble columnar body used to form the intake pipe. After the high-temperature soluble columnar body melts, the intake pipe will not be connected to the exhaust cavity 26.

[0043] The above-mentioned plastic refractory material is an amorphous refractory material in the form of a hard mud paste that maintains high plasticity for a long time. It is composed of granular and powdery materials, binders such as plastic clay, and plasticizers, and then a small amount of water is added and fully kneaded. This is prior art, so it will not be described in detail here.

[0044] There are two exhaust holes 12 on the heat exchange body 2, and they are symmetrically arranged on both sides of the flame outlet hole 11; there are also two exhaust channels 15, and one end of each of these two exhaust channels 15 is connected to the exhaust cavity 26, and the other end is connected to the corresponding exhaust hole 12.

[0045] A smoke exhaust and combustion assisting distributor 27 is provided on the heat exchange body 2. The smoke exhaust and combustion assisting distributor 27 includes a distributor body 271 and a distributor cover plate 272. The distributor body 271 has an inner cavity, and the air inlet 21 is connected to the inner cavity of the distributor body 271; a first through hole (not shown in the figure) corresponding to the intake pipe group 23 is provided at the bottom of the distributor body 271. The first through hole is used to connect the intake pipe group 23 with the inner cavity of the distributor body 271, so that the intake pipe group 23 is connected to the air inlet 21.

[0046] The bottom of the dispenser body 271 is provided with second through holes 2711 corresponding to the exhaust pipe groups 24 one by one. The second through holes 2711 penetrate the upper and lower end faces of the dispenser body 271 (a columnar body is provided in the inner cavity of the dispenser body 271, and the second through holes 2711 are arranged in the columnar body, so that the second through holes 2711 are not communicated with the inner cavity of the dispenser body 271). The dispenser cover plate 272 is provided with third through holes 2721 corresponding to the second through holes 2711 one by one. The exhaust pipe groups 24, the second through holes 2711, the third through holes 2721 and the exhaust port 22 are communicated in sequence. The smoke exhaust and combustion assisting dispenser 27 is made of aluminum metal, which is not only strong and durable but also easy to conduct heat.

[0047] An ignition component 3 is arranged in the flame outlet hole 11. The ignition component 3 can ignite the mixed gas of gas and air to ensure the combustion of the flame.

[0048] The ignition component 3 includes an igniter 31 and a sleeve 32 sleeved on the igniter 31. The sleeve 32 is arranged with a gap from the outer peripheral wall of the igniter 31 and forms the gas channel 13; a plurality of groups of gas holes 321 communicated with the gas channel 13 are annularly distributed at one end of the outer peripheral wall of the sleeve 32 close to the ignition port of the igniter 31. Each group of gas holes 321 has four, and forms a certain angle with the axial direction of the sleeve 32.

[0049] A flow guiding piece 322 is arranged on the sleeve 32 between two adjacent groups of gas holes 321. The flow guiding piece 322 has a flow guiding effect, which helps the mixed combustion of gas and air and improves the combustion efficiency.

[0050] A flame detector installation channel can also be arranged on the rear end face of the burner body 1. The flame detector installation channel extends to the ignition place and can be internally provided with a temperature sensor for detecting whether the large fire ignition is normal, so that the gas channel can be timely closed when the fire goes out to avoid accidents.

[0051] The above is only the specific implementation manner of the present invention, but the protection scope of the present invention is not limited thereto. Any changes or substitutions that can be easily thought of by those skilled in the art within the technical scope disclosed by the present invention should be covered by the protection scope of the present invention. Therefore, the protection scope of the present invention should be subject to the protection scope of the claims.

Claims

1. A novel energy-saving burner, comprising a burner body (1), wherein one end surface of the burner body (1) is provided with a flame outlet hole (11) and an exhaust hole (12), wherein a gas passage (13), an air intake passage (14) and an exhaust passage (15) are provided inside the burner body (1), wherein the gas passage (13) and the air intake passage (14) are connected to the flame outlet hole (11), and the exhaust passage (15) is connected to the exhaust hole (12); characterized in that: The burner body (1) is connected to a heat exchange body (2) extending vertically upwards; an air inlet (21) and an exhaust port (22) are provided at the top of the heat exchange body (2); a plurality of air inlet pipe groups (23) and exhaust pipe groups (24) extending along the height direction of the heat exchange body (2) are provided inside the heat exchange body (2); the air inlet pipe groups (23) and the exhaust pipe groups (24) are arranged alternately; one end of the air inlet pipe group (23) is connected to the air inlet (21), and the other end is connected to the air inlet channel (14); one end of the exhaust pipe group (24) is connected to the exhaust port (22), and the other end is connected to the exhaust channel (15).

2. The new energy-saving burner according to claim 1 is characterized in that: An air intake cavity (25) is provided at the lower end of the heat exchange body (2), and the upper and lower ends of the air intake cavity (25) are respectively connected to the air intake channel (14) and the air intake pipe group (23), so that the air intake channel (14) is connected to each air intake pipe group (23) through the air intake cavity (25); a plurality of corundum columns (251) are provided in the air intake cavity (25) for supporting the air intake cavity (25).

3. The new energy-saving burner according to claim 2 is characterized in that: An exhaust cavity (26) is also provided at the lower end of the heat exchange body (2), and the upper and lower ends of the exhaust cavity (26) are respectively connected to the exhaust channel (15) and the exhaust pipe group (24), so that the exhaust channel (15) is connected to each exhaust pipe group (24) through the exhaust cavity (26).

4. The new energy-saving burner according to claim 3 is characterized in that: The air intake pipe group (23) comprises three air intake pipes arranged at intervals, and the exhaust pipe group (24) comprises three exhaust pipes arranged at intervals.

5. The new energy-saving burner according to claim 4 is characterized in that: The exhaust cavity (26) is located above the intake cavity (25), and the intake pipes passing through the exhaust cavity (26) are sleeved with corundum ceramic tubes (231).

6. The new energy-saving burner according to claim 3 or 5, characterized in that: There are two exhaust holes (12) symmetrically arranged on both sides of the flame outlet hole (11); there are also two exhaust passages (15), and one end of the two exhaust passages (15) is connected to the exhaust cavity (26), and the other end is connected to the corresponding exhaust hole (12).

7. The new energy-saving burner according to claim 1 is characterized in that: The heat exchange body (2) is a heat exchange body (2) made of a plastic refractory material.

8. The new energy-saving burner according to claim 1 is characterized in that: An ignition assembly (3) is arranged in the flame outlet hole (11) for igniting the gas.

9. The new energy-saving burner according to claim 8 is characterized in that: The ignition assembly (3) comprises an igniter (31) and a sleeve (32) sleeved on the igniter (31); a gap is provided between the sleeve (32) and the outer peripheral wall of the igniter (31) to form the gas channel (13); a plurality of groups of gas holes (321) connected to the gas channel (13) are distributed in an annular manner at one end of the outer peripheral wall of the sleeve (32) close to the ignition port of the igniter (31); a guide plate (322) is provided on the sleeve (32) between two adjacent groups of gas holes (321).

10. The new energy-saving burner according to claim 1 is characterized in that: The heat exchange body (2) is provided with a smoke exhaust and combustion-supporting distributor (27), the smoke exhaust and combustion-supporting distributor (27) comprising a distributor body (271) and a distributor cover plate (272), the distributor body (271) having an inner cavity, the air inlet (21) being connected to the inner cavity of the distributor body (271); the bottom of the distributor body (271) is provided with a first through hole corresponding to the air inlet pipe group (23), the first through hole being used to connect the air inlet pipe group (23) with the distributor body (271) inner cavity; the bottom of the distributor body (271) is provided with a second through hole (2711) corresponding to the exhaust pipe group (24) one by one, the second through hole (2711) passes through the upper and lower end surfaces of the distributor body (271), the distributor cover plate (272) is provided with a third through hole (2721) corresponding to the second through hole (2711) one by one, and the exhaust pipe group (24), the second through hole (2711), the third through hole (2721) and the exhaust port (22) are connected in sequence.

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