Guide device for burner

Abstract

The utility model relates to the field of fuel gas devices, and discloses a guide device for a burner, which comprises a main body mechanism, a cooling mechanism is fixedly arranged at the front end of the main body mechanism, a guide mechanism is fixedly arranged at the front end of the cooling mechanism, the main body mechanism comprises a mixing pipe, and a fuel gas pipe is fixedly sleeved at the upper end of the mixing pipe. An oxygen pipe fixedly sleeves the lower end of the mixing pipe, a fixing plate is fixedly arranged on the inner surface of the end, close to the cooling mechanism, of the mixing pipe, a nozzle fixedly sleeves the middle position of the fixing plate, and an ignition electrode is fixedly arranged at the position, close to the upper end, of the end, close to the cooling mechanism, of the fixing plate; the guide mechanism comprises a circular flange, a guide sleeve and a heat conduction layer, and the cooling mechanism comprises a communicating pipe and a baffle. According to the utility model, the guide mechanism and the cooling mechanism are arranged in the guide device, so that the local temperature of the radiant tube in the burner can be prevented from being too high, and the service life of the burner is effectively prolonged.

Description

Technical Field

[0001] The utility model relates to the field of gas devices, in particular to a guide device for a burner. Background Art

[0002] Gas is a combustible gas widely used in residential life, industrial production and commercial facilities. It is mainly obtained by processing fossil fuels such as petroleum and natural gas. The gas burner is one of the core components of gas combustion equipment. It fully mixes the gas and air to release higher heat during the combustion process. The gas burner guide device is a device designed to ensure that the gas burner can operate stably and efficiently during the combustion process. Its main function is to ensure that the flame during the combustion process can be guided in a predetermined direction to achieve the optimization of the combustion effect.

[0003] Existing patent (publication number: CN210662854U) "The utility model discloses a flame guide sleeve for a radiant tube burner, comprising a heat-resistant guide sleeve body and a support; the heat-resistant guide sleeve body is tubular, with one end having a diameter slightly smaller than the other end; the support is columnar, evenly distributed and welded around the side of the heat-resistant guide sleeve body with a slightly larger diameter; the burner flame guide sleeve of the utility model effectively avoids the production stoppage caused by the deformation and cracking of the root of the radiant tube due to the uneven local high temperature on the inner wall of the radiant tube, which causes the radiant tube to be damaged and scrapped; it extends the service life and production cycle of the radiant tube, reduces repair and maintenance, and improves production efficiency; the guide sleeve has a simple structure and production, good versatility, can be widely used in radiant tube nozzles, and is conducive to widespread promotion and application."

[0004] In the process of realizing this application, the inventors discovered that the prior art has the following problems: the guide sleeve in the above-mentioned patent can effectively adjust the direction of the flame and separate the flame from the inner wall of the radiation tube, thereby reducing the problem of uneven high temperature caused by direct heating of the root of the radiation tube by the flame, and thus preventing it from deforming or cracking. However, in actual operation, since the flame is often concentrated at the root of the radiation tube and the length of the radiation tube may be longer than the flame, although it is buffered by the guide sleeve, the temperature rise rate of the root of the radiation tube may still be relatively fast in a short period of time, which may still cause the local temperature of the inner wall of the radiation tube to be too high, thereby causing the root of the radiation tube to deform or even crack. Therefore, the protective effect of the flame guide sleeve on the radiation tube may be limited.

[0005] Therefore, those skilled in the art provide a guide device for a burner to solve the problems raised in the above background technology. Utility Model Content

[0006] The purpose of the utility model is to solve the shortcomings of the prior art and to propose a guide device for a burner. The guide device is provided with a guide mechanism and a cooling mechanism, which can prevent the local temperature of the radiant tube in the burner from being too high and effectively extend the service life of the burner.

[0007] To achieve the above objectives, the present invention provides the following technical solutions:

[0008] A guide device for a burner, comprising a main body mechanism, a cooling mechanism fixedly provided at the front end of the main body mechanism, and a guide mechanism fixedly provided at the front end of the cooling mechanism;

[0009] The main body mechanism includes a mixing tube, the upper end of the mixing tube is fixedly sleeved with a gas pipe, the lower end of the mixing tube is fixedly sleeved with an oxygen pipe, the inner surface of the end of the mixing tube close to the cooling mechanism is fixedly provided with a fixing plate, the middle position of the fixing plate is fixedly sleeved with a nozzle, and the end of the fixing plate close to the cooling mechanism is fixedly provided with an ignition electrode near the upper end;

[0010] The guide mechanism includes a circular flange, a guide sleeve and a heat-conducting layer. A radiation tube is fixedly provided on the side of the circular flange away from the cooling mechanism. The inner surface of the radiation tube is provided with a slide groove near the upper and lower ends. Telescopic rods are fixedly provided in the two slide grooves. The outer surface of the heat-conducting layer is provided with a temperature sensor near the upper and lower ends.

[0011] The cooling mechanism includes a connecting pipe and a baffle. The outer surface of the connecting pipe near the upper and lower ends are fixedly sleeved with a balancing air valve. The inner surface of the connecting pipe is slidably sleeved with a sliding plate. The end of the sliding plate near the guide mechanism is fixedly connected to a spring.

[0012] Through the above technical solution, a guide mechanism and a cooling mechanism are provided in the guide device. The guide sleeve in the guide mechanism can change the direction of the flame. At the same time, the sliding sleeve of the heat-conducting layer is arranged on the outside of the guide sleeve. The guide sleeve and the heat-conducting layer are replaced with each other, and can alternately receive the heat of the flame and transfer the heat to the front end of the radiation tube in time to ensure that the temperature on the radiation tube is uniform. The cooling mechanism can continuously replace the internal air as the internal temperature changes, thereby playing a certain cooling effect.

[0013] Furthermore, a square flange is fixedly provided at one end of the mixing tube away from the cooling mechanism, and the gas pipe and the oxygen pipe are positioned correspondingly;

[0014] Through the above technical solution, the square flange is used to connect the burner and other structures, and the fuel gas and oxygen can enter the device from both ends and be evenly mixed in the mixing pipe.

[0015] Furthermore, the circular flange is fixedly mounted on the end of the connecting pipe away from the main body mechanism, and the end of the guide sleeve close to the cooling mechanism is fixedly mounted on the outer surface of the baffle;

[0016] Through the above technical solution, the circular flange connects the connecting pipe and the radiation pipe together, and the baffle fixes the guide sleeve.

[0017] Furthermore, the heat-conducting layer is slidably arranged in the connecting pipe, and the guide sleeve is slidably arranged in the heat-conducting layer;

[0018] Through the above technical solution, the heat-conducting layer can slide horizontally in the connecting pipe, so that the guide sleeve and the heat-conducting layer overlap or separate.

[0019] Furthermore, the two temperature sensors are slidably disposed in the two slide grooves respectively, and the ends of the two telescopic rods away from the main body are fixedly connected to the two temperature sensors respectively, and the two temperature sensors are electrically connected to the two telescopic rods respectively;

[0020] Through the above technical solution, the temperature sensor slides in the slide groove as the telescopic rod extends and retracts, and at the same time, the temperature sensor can control the telescopic rod according to the monitored temperature.

[0021] Furthermore, the connecting pipe is fixedly arranged between the mixing pipe and the circular flange, and the two balancing air valves are in opposite directions;

[0022] Through the above technical solution, the connecting pipe is located between the mixing pipe and the circular flange, and the two balancing gas valves can ensure that the high-temperature gas is discharged from the upper end and the low-temperature gas enters from the lower end.

[0023] Furthermore, the baffle is fixedly sleeved on the outside of one end of the nozzle close to the guide mechanism, and one end of the ignition electrode close to the guide mechanism is fixedly sleeved in the baffle;

[0024] Through the above technical solution, the ignition electrode is arranged near the nozzle, which is convenient for igniting the gas. The fixing plate and the baffle stably fix the ignition electrode and the nozzle from both ends.

[0025] Furthermore, the spring is sleeved on the outer surface of the ignition electrode, and one end of the spring away from the sliding plate is fixedly connected to the baffle;

[0026] Through the above technical solution, the spring is connected between the sliding plate and the baffle, and the expansion and contraction of the spring can drive the horizontal sliding of the sliding plate.

[0027] The utility model has the following beneficial effects:

[0028] 1. The utility model proposes a guide device for a burner, in which a guide mechanism is provided. During use, the guide sleeve and the heat-conducting layer in the guide mechanism constitute the core structure for realizing the guiding function. The temperature of the heat-conducting layer can drive the telescopic rod to extend and retract through the sensor. This linkage promotes the sliding of the heat-conducting layer, so that the guide sleeve and the heat-conducting layer alternately realize the guiding function. At the same time, the heat is quickly and evenly conducted to the front end of the radiant tube through the heat-conducting layer, effectively reducing the temperature difference between the front and rear ends of the radiant tube, thereby effectively preventing the burner from deformation or cracking due to uneven temperature, thereby extending the service life of the burner.

[0029] 2. The utility model proposes a guide device for a burner, in which a cooling mechanism is provided. During use, the sliding plate in the cooling mechanism can slide under the action of the gas pressure of the high-temperature gas, and realize the gas circulation between the connecting pipe and the outside through the balancing gas valve, so that the high-temperature gas is discharged from the device in time, effectively reducing the temperature inside the device, and reset under the action of the spring. Repeating the above process can achieve a cooling effect, help to reduce the temperature difference between the front and rear ends of the radiation tube, and play a certain role in protecting the burner. BRIEF DESCRIPTION OF THE DRAWINGS

[0030] Figure 1 This is a schematic diagram of the axial side of the utility model;

[0031] Figure 2 This is a schematic cross-sectional axial view of the present invention;

[0032] Figure 3 It is a partially cutaway axial schematic diagram of the guide mechanism and the cooling mechanism of the present invention;

[0033] Figure 4 for Figure 2 Enlarged schematic diagram of point A in the middle.

[0034] Legend:

[0035] 1. Main body; 101. Square flange; 102. Mixing tube; 103. Gas tube; 104. Oxygen tube; 105. Fixing plate; 106. Ignition electrode; 107. Nozzle; 2. Guide mechanism; 201. Circular flange; 202. Radiant tube; 203. Slide groove; 204. Guide sleeve; 205. Heat-conducting layer; 206. Telescopic rod; 207. Temperature sensor; 3. Cooling mechanism; 301. Connecting tube; 302. Balancing valve; 303. Sliding plate; 304. Spring; 305. Baffle. DETAILED DESCRIPTION

[0036] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the embodiments described are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0037] Reference Figure 1-4 The utility model provides an embodiment: a guide device for a burner, comprising a main body mechanism 1, a cooling mechanism 3 is fixedly provided at the front end of the main body mechanism 1, and a guide mechanism 2 is fixedly provided at the front end of the cooling mechanism 3;

[0038] The main mechanism 1 includes a mixing tube 102, the upper end of the mixing tube 102 is fixedly sleeved with a gas pipe 103, the lower end of the mixing tube 102 is fixedly sleeved with an oxygen pipe 104, the inner surface of the end of the mixing tube 102 close to the cooling mechanism 3 is fixedly provided with a fixing plate 105, the middle position of the fixing plate 105 is fixedly sleeved with a nozzle 107, the end of the fixing plate 105 close to the cooling mechanism 3 is fixedly provided with an ignition electrode 106 near the upper end, the end of the mixing tube 102 away from the cooling mechanism 3 is fixedly provided with a square flange 101, the gas pipe 103 and the oxygen pipe 104 are positioned correspondingly, and the end of the ignition electrode 106 close to the guide mechanism 2 is fixedly sleeved in the baffle 305;

[0039] The guide device is provided with a main body mechanism 1, which is the main structure of the burner. The square flange 101 facilitates the connection of the burner with other structures. The mixing tube 102 is a place where the gas and oxygen are evenly mixed to facilitate the full combustion of the gas. The gas pipe 103 is a pipe for the gas to enter the device. The oxygen pipe 104 is a pipe for the oxygen to enter the device. The fixing plate 105 can not only fix the ignition electrode 106 and the nozzle 107, but also ensure that the mixed gas can smoothly enter the nozzle 107. The ignition electrode 106 is a structure for ignition. The nozzle 107 can output the mixed gas at a certain rate.

[0040] The guide mechanism 2 includes a circular flange 201, a guide sleeve 204, and a heat-conducting layer 205. A radiation tube 202 is fixedly installed on the side of the circular flange 201 away from the cooling mechanism 3. The inner surface of the radiation tube 202 is provided with a slide groove 203 near the upper and lower ends. Telescopic rods 206 are fixedly installed in the two slide grooves 203. Temperature sensors 207 are fixedly installed on the outer surface of the heat-conducting layer 205 near the upper and lower ends.

[0041] The circular flange 201 is fixedly mounted on the end of the connecting pipe 301 away from the main body 1. The end of the guide sleeve 204 close to the cooling mechanism 3 is fixedly mounted on the outer surface of the baffle 305. The heat-conducting layer 205 is slidably mounted in the connecting pipe 301. The guide sleeve 204 is slidably mounted in the heat-conducting layer 205. Two temperature sensors 207 are slidably mounted in two chutes 203, respectively. The ends of the two telescopic rods 206 away from the main body 1 are respectively fixedly connected to the two temperature sensors 207. The two temperature sensors 207 are respectively electrically connected to the two telescopic rods 206.

[0042] The guide device is provided with a guide mechanism 2, which is a structure that can adjust the direction of the flame and prevent the local temperature of the radiation tube 202 from being too high. The circular flange 201 is used to connect the guide mechanism 2 and the cooling mechanism 3. The radiation tube 202 can protect the internal structure. The slide groove 203 can ensure the horizontal sliding of the temperature sensor 207. The guide sleeve 204 is made of high-temperature resistant material and can adjust the direction of the flame generated by the nozzle 107 to make the flame more concentrated. At the same time, it separates the radiation tube 202 from the flame to prevent the radiation tube 202 from heating up too quickly locally, resulting in deformation and cracking. The heat-conducting layer 205 is sleeved on the outside of the guide sleeve 204 and can slide horizontally along the guide sleeve 204. The telescopic rod 206 is electrically controlled. The temperature sensor 207 can monitor the temperature of the heat-conducting layer 205 in real time. The temperature sensor 207 can control the extension and retraction of the telescopic rod 206 according to the monitored temperature.

[0043] The cooling mechanism 3 includes a connecting pipe 301 and a baffle 305. The outer surface of the connecting pipe 301 is fixedly sleeved with a balancing air valve 302 near the upper and lower ends. A sliding plate 303 is slidingly sleeved inside the connecting pipe 301. The end of the sliding plate 303 close to the guide mechanism 2 is fixedly connected to a spring 304. The connecting pipe 301 is fixedly arranged between the mixing pipe 102 and the circular flange 201. The two balancing air valves 302 are in opposite directions. The baffle 305 is fixedly sleeved on the outside of the end of the nozzle 107 close to the guide mechanism 2. The spring 304 is sleeved on the outer surface of the ignition electrode 106. The end of the spring 304 away from the sliding plate 303 is fixedly connected to the baffle 305.

[0044] The guide device is provided with a cooling mechanism 3, which plays a cooling role through the flow of air. The two balancing air valves 302 are in opposite directions. The balancing air valve 302 at the upper end can allow high-temperature gas to be transmitted outward, and the balancing air valve 302 at the lower end can allow low-temperature gas to enter the device, ensuring the smooth circulation of gas. The baffle 305 separates the connecting pipe 301 and the radiation tube 202 into two spaces, and the sliding plate 303 divides the connecting pipe 301 into two parts. When the flame is ignited, the air between the sliding plate 303 and the baffle 305 expands due to heat, and the sliding plate 303 will slide along the ignition electrode 106 under the action of air pressure. The spring 304 will cause the sliding plate 303 to rebound under the action of elastic force after the high-temperature gas is released.

[0045] Working principle: When the guide device is used, the gas and oxygen enter the mixing tube 102 from the gas pipe 103 and the oxygen pipe 104 respectively, are mixed evenly in the mixing tube 102, and then enter the nozzle 107 to reach the front end of the nozzle 107. The gas is ignited by the ignition electrode 106. At this time, the guide sleeve 204 and the heat-conducting layer 205 are in an overlapping state, and the heat-conducting layer 205 guides the flame. When the temperature of the heat-conducting layer 205 rises to a threshold value, the temperature sensor 207 is triggered to control the extension of the telescopic rod 206, and the heat-conducting layer 205 slides forward. The heat-conducting layer 205 can conduct heat to the front end of the radiation tube 202. At this time, the guide sleeve 204 guides the flame. The guide sleeve 204 is located between the radiation tube 202 and the flame, and plays a buffering role in the temperature rise at the rear end of the radiation tube 202. This can reduce the temperature difference between the front and rear ends of the radiation tube 202 and ensure the normal use of the radiation tube 202.

[0046] At the same time, after the flame is ignited, the air between the sliding plate 303 and the baffle 305 heats up. As the temperature rises, the air pressure gradually increases, pushing the sliding plate 303 to slide backward, and the spring 304 extends accordingly. When the sliding plate 303 passes the air valve, the balancing air valve 302 opens, and the high-temperature gas is discharged from the upper end of the device, and the low-temperature gas enters the device from the lower end. When the temperature drops, the sliding plate 303 slides forward under the elastic force of the spring 304, and then the air heats up again. The above process is repeated continuously, which can reduce the temperature inside the device.

[0047] Finally, it should be noted that the above is only a preferred embodiment of the present invention and is not intended to limit the present invention. Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art can still modify the technical solutions described in the aforementioned embodiments or make equivalent replacements for some of the technical features therein. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principles of the present invention should be included in the scope of protection of the present invention.

Claims

1. A guide device for a burner, comprising a main body (1), characterized in that: A cooling mechanism (3) is fixedly provided at the front end of the main body mechanism (1), and a guide mechanism (2) is fixedly provided at the front end of the cooling mechanism (3); The main body mechanism (1) includes a mixing tube (102), the upper end of the mixing tube (102) is fixedly provided with a gas tube (103), the lower end of the mixing tube (102) is fixedly provided with an oxygen tube (104), the inner surface of one end of the mixing tube (102) close to the cooling mechanism (3) is fixedly provided with a fixing plate (105), the middle position of the fixing plate (105) is fixedly provided with a nozzle (107), and the position of the fixing plate (105) close to the upper end of one end close to the cooling mechanism (3) is fixedly provided with an ignition electrode (106); The guide mechanism (2) comprises a circular flange (201), a guide sleeve (204) and a heat-conducting layer (205); a radiation tube (202) is fixedly provided on a side of the circular flange (201) away from the cooling mechanism (3); a slide groove (203) is provided on the inner surface of the radiation tube (202) near the upper and lower ends; telescopic rods (206) are fixedly provided in the two slide grooves (203); and a temperature sensor (207) is fixedly provided on the outer surface of the heat-conducting layer (205) near the upper and lower ends. The cooling mechanism (3) comprises a connecting pipe (301) and a baffle (305); a balancing air valve (302) is fixedly sleeved on the outer surface of the connecting pipe (301) near the upper and lower ends; a sliding plate (303) is slidably sleeved inside the connecting pipe (301); and a spring (304) is fixedly connected to one end of the sliding plate (303) near the guide mechanism (2).

2. A burner guide device according to claim 1, characterized in that: A square flange (101) is fixedly provided at one end of the mixing tube (102) away from the cooling mechanism (3), and the gas tube (103) and the oxygen tube (104) are positioned correspondingly.

3. The burner guide device according to claim 1, characterized in that: The circular flange (201) is fixedly arranged at one end of the connecting pipe (301) away from the main body mechanism (1), and the end of the guide sleeve (204) close to the cooling mechanism (3) is fixedly sleeved on the outer surface of the baffle (305).

4. The burner guide device according to claim 1, characterized in that: The heat-conducting layer (205) is slidably disposed in the connecting pipe (301), and the guide sleeve (204) is slidably disposed in the heat-conducting layer (205).

5. The burner guide device according to claim 1, characterized in that: The two temperature sensors (207) are respectively slidably arranged in the two slide grooves (203); the ends of the two telescopic rods (206) away from the main body (1) are respectively fixedly connected to the two temperature sensors (207); and the two temperature sensors (207) are respectively electrically connected to the two telescopic rods (206).

6. The burner guide device according to claim 1, characterized in that: The connecting pipe (301) is fixedly arranged between the mixing pipe (102) and the circular flange (201), and the directions of the two balancing air valves (302) are opposite.

7. The burner guide device according to claim 1, characterized in that: The baffle (305) is fixedly sleeved outside the end of the nozzle (107) close to the guide mechanism (2), and the end of the ignition electrode (106) close to the guide mechanism (2) is fixedly sleeved in the baffle (305).

8. The burner guide device according to claim 1, characterized in that: The spring (304) is sleeved on the outer surface of the ignition electrode (106), and one end of the spring (304) away from the sliding plate (303) is fixedly connected to the baffle (305).

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