Gas burner

Abstract

The utility model discloses a gas burner, which relates to the field of burner nozzles, comprises a shell, an outer flat nozzle, an inner flat nozzle, an outer clamping plate, an inner clamping plate, a spray head, a connecting pipe, a spark nozzle, an electrode strip, a rear cover and a rear pipe, and is characterized in that a gas pipe is fixedly mounted at the right end of the spray head, and one end, far away from the spray head, of the gas pipe is fixedly mounted with the connecting pipe; the other end of the connecting pipe and the rear cover are installed in a threaded mode, and the side, close to the connecting pipe, of the rear cover and the right end of the shell are fixedly installed through screws. By the adoption of the structure, the gas burner enables air to be mixed in a multi-stage mode through the unique cup-shaped burning head, in addition, the unique double-layer sleeve is further designed, classification of the air is strengthened, in addition, due to the ultra-high-speed performance and the unique flat-opening flame outlet, backflow of flue gas in a furnace is strengthened, and the combustion efficiency is improved. Therefore, the uniformity of the furnace temperature is well improved, and emission of low nitrogen oxide is achieved.

Description

Technical Field

[0001] This utility model belongs to the field of gas burners, and specifically relates to a gas burner. Background Technology

[0002] A gas burner is a combustion device primarily used in industrial furnaces and other thermal equipment to achieve fuel combustion and heat transfer. A gas burner consists of a gas-air mixing device, an ignition device, and a flame monitoring device. Different types of gas burners can be selected based on different operating environments and conditions. For example, they can be classified by fuel type (oil, gas, coal) and by flame shape (direct flame, flat flame, focusing flame, etc.). The selection of a gas burner must consider factors such as flame temperature, stability, radiation intensity, and combustion efficiency, while ensuring safety, reliability, economy, and durability. During use, regular inspection and maintenance of the gas burner are necessary to ensure its normal operation and service life.

[0003] Chinese Patent Publication No. CN219571909U discloses a gas burner, including a thin tubular burner body with a tapered head. The burner body has gas vent holes around its head, and the head has a plurality of gas vent holes that are evenly distributed along the periphery of the burner body's head. The burner body includes an inner gas tube, an ignition element, and an outer tube. The outer tube is fitted over the inner gas tube. The ignition element is located between the outer tube and the inner gas tube and is separate from either the outer tube or the inner gas tube. The head of the inner gas tube is tapered.

[0004] Currently, existing gas burners still have certain shortcomings in use. For example, traditional burners have a simple structure and cannot enhance air staging, increase combustion efficiency, or enhance flue gas recirculation in the furnace to achieve low nitrogen oxide emissions. Utility Model Content

[0005] In view of the problems mentioned in the background art, the purpose of this utility model is to provide a gas burner to solve the problems mentioned in the background art.

[0006] The above-mentioned technical objective of this utility model is achieved through the following technical solution:

[0007] A gas burner includes a housing, an outer flat nozzle, an inner flat nozzle, an outer retaining plate, an inner retaining plate, a nozzle, a connecting pipe, a spark nozzle, an electrode strip, a rear cover, and a rear tube. A gas pipe is fixedly installed on the right end of the nozzle. The end of the gas pipe away from the nozzle is fixedly installed with the connecting pipe, and the other end of the connecting pipe is threaded onto the rear cover. The side of the rear cover near the connecting pipe is fixedly installed with the right end of the housing by screws. The rear tube is fixedly connected to the side of the rear cover away from the housing, and one end of the rear tube is connected to the connecting pipe. The inner flat nozzle is inserted into the side of the housing away from the rear cover. The inner retaining plate is sleeved on the outside of the inner flat nozzle and fixedly installed with the left end of the housing by screws. The right end of the outer flat nozzle is inserted into the left end of the housing, and the outer retaining plate is sleeved on the outside of the outer flat nozzle and fixedly installed with the left end of the housing by screws. The spark nozzle is threaded onto the inside of the housing. The electrode strip is fixedly installed on the inside of the rear cover, and the end of the electrode strip away from the rear cover extends movably into the inside of the nozzle.

[0008] As a preferred technical solution, a support is fixedly connected to the outer side of the inner flat nozzle, and the outer flat nozzle is sleeved on the outer side of the inner flat nozzle.

[0009] As a preferred technical solution, several nozzle holes are provided on the outer side of the nozzle, and the end of the nozzle away from the gas pipe extends into the inner side of the flat nozzle.

[0010] As a preferred technical solution, an installation block is fixedly installed at an equal angle on the inner wall of the left end of the housing. The outer side of the installation block has a groove, and the inner flat nozzle is inserted into the groove. The inner side of the installation block has an installation hole, and the inner clamping plate is fixedly installed by screws and the installation hole.

[0011] As a preferred technical solution, a connecting groove is provided on the side of the rear cover facing the housing, and the end of the connecting pipe away from the gas pipe is threaded into the connecting groove.

[0012] As a preferred technical solution, a gasket is bonded to the side of the housing facing the rear cover, and the gasket is located between the housing and the rear cover.

[0013] As a preferred technical solution, a mounting base is fixedly connected to the lower end of the housing.

[0014] In summary, the present invention has the following main advantages:

[0015] This gas burner uses a unique cup-shaped burner head to allow for multi-stage air mixing. It also features a unique double-layer sleeve design to enhance air grading. Combined with ultra-high speed performance and a unique flat flame outlet to enhance flue gas recirculation within the furnace, it effectively improves furnace temperature uniformity and achieves low nitrogen oxide emissions. Attached Figure Description

[0016] Figure 1 This is a schematic diagram of the structure of this utility model;

[0017] Figure 2This is a schematic diagram of the back cover structure of this utility model;

[0018] Figure 3 This is an exploded view of the present invention;

[0019] Figure 4 This is the utility model Figure 3 Enlarged view of point A in the middle;

[0020] Figure 5 This is a schematic diagram of the double-circle opening structure of this utility model;

[0021] Figure 6 This is a schematic diagram of the single flat mouth structure of this utility model;

[0022] Figure 7 This is a schematic diagram of the burner brick structure of this utility model.

[0023] Reference numerals: 1. Outer flat nozzle; 2. Inner flat nozzle; 3. Outer clamping plate; 4. Housing; 5. Rear pipe; 6. Mounting base; 7. Rear cover; 8. Support part; 9. Gas pipe; 10. Nozzle; 11. Nozzle hole; 12. Connecting pipe; 13. Electrode strip; 14. Spark nozzle; 15. Connecting groove; 16. Mounting hole; 17. Mounting block; 18. Groove; 19. Inner clamping plate; 20. Washer. Detailed Implementation

[0024] Example 1

[0025] refer to Figures 1 to 4 The gas burner described in this embodiment includes a housing 4, an outer flat nozzle 1, an inner flat nozzle 2, an outer retaining plate 3, an inner retaining plate 19, a nozzle 10, a connecting pipe 12, a spark nozzle 14, an electrode strip 13, a rear cover 7, and a rear pipe 5. A gas pipe 9 is fixedly installed on the right end of the nozzle 10. The end of the gas pipe 9 away from the nozzle 10 is fixedly installed to the connecting pipe 12. The other end of the connecting pipe 12 is threaded onto the rear cover 7. The side of the rear cover 7 closest to the connecting pipe 12 is fixedly installed to the right end of the housing 4 by screws. The rear pipe 5 is fixedly connected to the side of the rear cover 7 away from the housing 4. One end of the rear pipe 5 is connected to the connecting pipe 12. The inner flat nozzle 2 is inserted into the side of the housing 4 furthest from the housing 4. On one side of the rear cover 7, the inner clamping plate 19 is sleeved on the outside of the inner flat nozzle 2. The inner clamping plate 19 is fixedly installed to the left end of the housing 4 by screws. The right end of the outer flat nozzle 1 is inserted into the left end of the housing 4. The outer clamping plate 3 is sleeved on the outside of the outer flat nozzle 1. The outer clamping plate 3 is fixedly installed to the left end of the housing 4 by screws. The spark nozzle 14 is threadedly installed inside the housing 4. The electrode strip 13 is fixedly installed inside the rear cover 7. The end of the electrode strip 13 away from the rear cover 7 extends movably into the inside of the nozzle 10. The rear cover 7 is also provided with multiple viewing mirrors on the side near the rear tube 5. The inner side of the rear tube 5 is also equipped with spark nozzles 14, which can be selected according to different types of burners and spark nozzles 14 on the housing 4.

[0026] The gas burner employs a cup-shaped burner head. This design allows for multi-stage mixing of air within the burner head. By altering the path and manner in which air enters the burner head, more thorough mixing of air and gas can be achieved, thereby improving combustion efficiency. The multi-stage mixing process helps to evenly distribute air within the gas, resulting in more uniform combustion and reducing the formation of localized high-temperature and oxygen-deficient areas, thus lowering nitrogen oxide emissions. Secondly, the gas burner also features a unique double-layer sleeve structure. This structure further enhances the air grading effect. A certain airflow channel can be formed between the double sleeves, allowing air to enter the combustion zone in stages and layers during combustion. In addition, the high-speed gas outlet velocity generates strong disturbance and turbulence effects, resulting in more thorough mixing of air and gas. The high-speed airflow also promotes the recirculation and circulation of flue gas within the furnace, leading to a more uniform temperature distribution. This uniform temperature distribution helps to reduce the formation of localized high-temperature areas, thereby lowering nitrogen oxide emissions.

[0027] refer to Figure 3 The outer side of the inner flat nozzle 2 is fixedly connected to a support part 8. The outer flat nozzle 1 is sleeved on the outer side of the inner flat nozzle 2. Through the support part 8 on the inner flat nozzle 2, after the outer flat nozzle 1 is sleeved on the outer side of the inner flat nozzle 2 and fixed, the support part 8 on the outer side of the inner flat nozzle 2 abuts against the inner wall of the outer flat nozzle 1, which can make the end of the outer flat nozzle 1 more stable.

[0028] refer to Figure 3 The nozzle 10 has several nozzle holes 11 on its outer side. The end of the nozzle 10 away from the gas pipe 9 extends into the inner side of the inner flat nozzle 2. Through the nozzle holes 11 on the outer side of the nozzle 10, the gas is throttled when it passes through, which can increase the gas flow rate and promote the uniform mixing of gas and air, thereby improving the gas injection effect.

[0029] refer to Figure 4 An mounting block 17 is fixedly installed at an equal angle on the inner wall of the left end of the housing 4. A groove 18 is provided on the outer side of the mounting block 17, and the inner flat nozzle 2 is inserted into the groove 18. An installation hole 16 is provided on the inner side of the mounting block 17. The inner clamping plate 19 is fixedly installed by screws and the installation hole 16. The inner flat nozzle 2 can be easily inserted through the groove 18 at the mounting block 17, and the inner clamping plate 19 can be easily installed through the installation hole 16 on the mounting block 17.

[0030] refer to Figure 3 The rear cover 7 has a connecting groove 15 on the side facing the housing 4. The end of the connecting pipe 12 away from the gas pipe 9 is threaded into the connecting groove 15. The connecting groove 15 on the rear cover 7 makes it easy to install the connecting pipe 12 and the rear cover 7, and at the same time makes it easy for the rear pipe 5 at the rear cover 7 to supply gas to the gas pipe 9.

[0031] refer to Figure 3 A gasket 20 is bonded to the side of the housing 4 facing the rear cover 7. The gasket 20 is located between the housing 4 and the rear cover 7. The gasket 20 between the housing 4 and the rear cover 7 can ensure the sealing effect of the installation. A mounting base 6 is fixedly connected to the lower end of the housing 4. The mounting base 6 can facilitate the installation of the housing 4.

[0032] Example 2

[0033] refer to Figure 5 This is a schematic diagram of a double-round-mouth gas burner. Its main distinguishing feature is that the outer flat nozzle 1 and the inner flat nozzle 2 are changed to a round-mouth structure, which can meet the usage requirements of more occasions.

[0034] Example 3

[0035] refer to Figure 6 This is a schematic diagram of a single flat mouth structure. Its main distinguishing feature is that the outer flat mouth 1 adopts a rectangular structure, which can meet the usage requirements of more occasions.

[0036] Example 4

[0037] refer to Figure 7 This is a schematic diagram of a burner brick structure. Its main distinguishing feature is that the double-layer structure is changed to a single-layer flat nozzle, which can meet the requirements of more occasions.

[0038] Operating principle and advantages: During use, the housing 4 can be easily installed via the mounting seat 6 on the housing 4. When installing the combustion burner, connect the connecting pipe 12 at one end of the gas pipe 9 of the nozzle 10 to the rear cover 7, then connect the rear cover 7 to the housing 4, then insert the inner flat nozzle 2 onto the outside of the nozzle 10, and place its end in the groove 18 of the mounting block 17 of the housing 4, and use the outer sleeve inner clamping plate 19 to connect and fix it to the mounting block 17. When installing the outer flat nozzle 1, insert the outer flat nozzle 1 into the housing 4 and then use the outer sleeve outer clamping plate 3 to connect and fix it to the housing 4. This combustion burner has a simple and convenient installation structure, which is conducive to subsequent disassembly and maintenance.

Claims

1. A gas burner, comprising a housing, an outer flat nozzle, an inner flat nozzle, an outer retaining plate, an inner retaining plate, a nozzle, a connecting pipe, a spark nozzle, an electrode strip, a rear cover, and a rear pipe, characterized in that: A gas pipe is fixedly installed at the right end of the nozzle. The end of the gas pipe away from the nozzle is fixedly installed with a connecting pipe. The other end of the connecting pipe is threaded onto the rear cover. The side of the rear cover near the connecting pipe is fixedly installed with the right end of the housing by screws. The rear pipe is fixedly connected to the side of the rear cover away from the housing. One end of the rear pipe is connected to the connecting pipe. The inner flat nozzle is inserted into the side of the housing away from the rear cover. The inner retaining plate is sleeved on the outside of the inner flat nozzle. The inner retaining plate is fixedly installed with the left end of the housing by screws. The right end of the outer flat nozzle is inserted into the left end of the housing. The outer retaining plate is sleeved on the outside of the outer flat nozzle. The outer retaining plate is fixedly installed with the left end of the housing by screws. The spark nozzle is threaded onto the inside of the housing. The electrode strip is fixedly installed on the inside of the rear cover. The end of the electrode strip away from the rear cover extends movably into the inside of the nozzle.

2. Gas burner according to claim 1, characterized in that: A support is fixedly connected to the outer side of the inner flat nozzle, and the outer flat nozzle is sleeved on the outer side of the inner flat nozzle.

3. A gas burner according to claim 1, characterized in that: The nozzle has several nozzle holes on its outer side, and the end of the nozzle away from the gas pipe extends into the inner side of the flat nozzle.

4. A gas burner according to claim 1, characterised in that: An mounting block is fixedly installed at an equal angle on the inner wall of the left end of the housing. A groove is provided on the outer side of the mounting block. The inner flat nozzle is inserted into the groove. An installation hole is provided on the inner side of the mounting block. The inner clamping plate is fixedly installed by screws and the installation hole.

5. A gas burner according to claim 1, characterized in that: The rear cover has a connecting groove on the side facing the housing, and the end of the connecting pipe away from the gas pipe is threaded into the connecting groove.

6. A gas burner according to claim 1, characterized in that: A gasket is bonded to the side of the housing facing the rear cover, and the gasket is located between the housing and the rear cover.

7. A gas burner according to claim 1, characterized in that: A mounting base is fixedly connected to the lower end of the housing.

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