Rainproof diffusing burner

Abstract

The utility model discloses a rainproof diffusing burner, and belongs to the technical field of coal gasification. The combustor comprises a combustor barrel, an air inlet is formed in the bottom of the combustor barrel, a rain dividing cover is installed at the bottom in the combustor barrel, and the rain dividing cover comprises an annular plate, a side wall and a top cover; the annular plate is horizontally arranged and is fixedly connected with the inner wall of the burner barrel, and a through hole communicated with the gas inlet is formed in the middle of the annular plate; the side wall is vertically installed on the annular plate and arranged around the through hole, and air holes are formed in the side wall; the top cover is fixedly installed on the side wall and covers the top of the side wall. A drainage hole is formed in the position, located above the annular plate, of the wall face of the combustor barrel. According to the utility model, the rainproof structure of the diffusion burner is improved, so that the normal operation of the diffusion burner is not influenced while rainwater can be smoothly discharged out of the diffusion burner.

Description

Technical Field

[0001] This utility model belongs to the field of coal gasification technology, and more specifically, relates to a rainproof venting burner. Background Technology

[0002] With the continuous increase in output in industries such as steel and alumina, the demand for combustible gas in industry production is also increasing. In production, most combustible gas can be effectively utilized. However, for safety reasons, it is usually necessary to release the combustible gas in the pipeline when the gas generator or other equipment is initially producing gas or when the gas supply pipeline is being maintained.

[0003] The traditional method involves directly igniting the combustible gas at the outlet of the pipeline using a venting burner (i.e., a venting ignition device). Because venting burners are typically directly exposed to the external environment, rainwater can backflow into them when not in use. This is especially problematic in rainy island environments like Indonesia, where there are several rain showers daily. The accumulated rainwater can cause corrosion of lower valves and pipes, hindering system stability. Furthermore, the external environment can lead to unstable and incomplete combustion during the venting process, resulting in increased emissions and environmental pollution.

[0004] Chinese patent application number CN200820192548.0, published on August 26, 2009, discloses an automatic ignition device for venting raw coal gas in an electrically heated coke oven. It addresses the shortcomings of existing devices where the harsh environment at the top of the coke oven vent pipe, combined with dust accumulation on the ceramic insulators of the high-voltage electrodes and rainwater, leads to decreased insulation of the discharge electrodes, preventing arc discharge and causing ignition failure. The device comprises a support 2 connected to the vent pipe 1, a ceramic tube 3 on the support 2, a heating wire 4 inside the ceramic tube 3, a rain cover 5 on the support 2, and a transformer 6 connected to the heating wire 4. A controller 8 is connected to the heating wire 4 via a wire 7. The transformer 6 is a control type and connected within the controller 8. The gap between the layers of the heating wire 4 is less than 1 mm.

[0005] Chinese patent application number CN201620003252.4, published on May 25, 2016, discloses an automatic venting ignition device, belonging to the technical field of coal gasification equipment. The technical solution is as follows: an automatic venting ignition device includes a venting pipe, wherein the venting pipe is formed by a lower pipe and an upper pipe connected together. A rainproof cover is installed at the upper end of the upper pipe, and ventilation holes are provided on the side wall of the upper pipe. A flame detector sensor is installed on one side wall of the upper pipe, and an ignition gun is installed on the other side wall. One end of the flame detector sensor is connected to the input terminal of an explosion-proof electrical cabinet via a flame detection data cable, and the ignition gun is connected to the output terminal of the explosion-proof electrical cabinet via an ignition cable. This utility model avoids the possibility of flameout in severe weather conditions such as strong winds and heavy rain.

[0006] The two aforementioned venting burners are waterproofed by adding rain covers to their tops, preventing rainwater from entering and causing damage. However, since the venting burners need to exhaust combusted gases during operation to achieve environmental protection, adding rain covers would expose them to high temperatures during operation, potentially causing damage. Furthermore, the rain covers would interfere with the exhaust of gases. Summary of the Invention

[0007] 1. The problem to be solved

[0008] In view of the problems that existing rain covers for venting burners are generally installed on the top of the burner, which have a short lifespan due to high temperature and can interfere with the exhaust of combustion gases, this utility model provides a rainproof venting burner. The rainproof structure of the venting burner is improved so that rainwater can be smoothly discharged from the venting burner without affecting its normal operation.

[0009] 2. Technical Solution

[0010] To solve the above problems, the present invention adopts the following technical solution.

[0011] A rainproof venting burner includes a burner cylinder with an air inlet at the bottom. A rain shield is installed at the bottom of the burner cylinder, comprising an annular plate, side walls, and a top cover. The annular plate is horizontally positioned and fixedly connected to the inner wall of the burner cylinder, with a through hole in its center communicating with the air inlet. The side walls are vertically mounted on the annular plate and arranged around the through hole, with air holes on the side walls. The top cover is fixedly mounted on the side walls, covering the top of the side walls. A drain hole is provided on the wall surface of the burner cylinder above the annular plate.

[0012] As a further improvement to the technical solution, a drain pipe is connected to the outside of the drain hole.

[0013] As a further improvement to the technical solution, the drain pipe has a U-shaped structure.

[0014] As a further improvement to the technical solution, the height of the top cover gradually decreases from its middle part to its edge.

[0015] As a further improvement to the technical solution, the edge of the top cover extends out of the side wall and the horizontal distance between the top cover and the side wall is ≥50mm.

[0016] As a further improvement to the technical solution, the pores are multiple and arranged circumferentially along the sidewall.

[0017] As a further improvement to the technical solution, a continuous lamp is installed on the outside of the burner cylinder, and the continuous lamp is equipped with a gas inlet pipe and an igniter.

[0018] As a further improvement to the technical solution, a Venturi tube is installed on the upper part of the burner cylinder.

[0019] As a further improvement to the technical solution, the burner cylinder is equipped with a swirl device.

[0020] As a further improvement to the technical solution, the upper outer side of the burner cylinder has stiffening plates.

[0021] 3. Beneficial effects

[0022] Compared with the prior art, the beneficial effects of this utility model are as follows:

[0023] (1) This utility model provides a rainproof venting burner, which differs from the existing venting burners that have a rainproof structure on the top. Instead, it has a rain cover installed at the bottom of the burner cylinder. The top cover of the rain cover can block rainwater and guide it to the annular plate, and then discharge it through the drain hole. The air holes on the side wall allow the venting gas to move upward from the air holes, ensuring the normal operation of the venting burner. This solves the problem that the existing burner top rainproof structure has a short service life due to high temperature and will interfere with the discharge of combustion gas.

[0024] (2) The present invention provides a rainproof venting burner with a drain pipe connected to the drain hole, which can smoothly drain the rainwater on the annular plate. The U-shaped structure of the drain pipe allows a certain amount of rainwater to be stored in the drain pipe, thereby playing a water seal role when the burner is working normally, ensuring the combustion effect of the burner.

[0025] (3) The present invention provides a rainproof venting burner, wherein the height of the top cover gradually decreases from the middle to the edge, so that rainwater can flow smoothly from the top cover to the annular plate, and the edge of the top cover extends out of the side wall and the horizontal distance between the top cover and the side wall is ≥50mm, so that rainwater can be prevented from flowing into the air hole along the side wall and causing water to accumulate at the bottom of the burner.

[0026] (4) The present invention provides a rainproof venting burner, wherein the burner cylinder is equipped with a swirl device, which enables the gas to diffuse outward and mix fully with the air during the upward movement, so as to facilitate venting combustion. Attached Figure Description

[0027] Figure 1 This is a schematic diagram of the burner structure of this utility model;

[0028] In the diagram: 1. Air inlet; 2. Rain cover; 21. Annular plate; 22. Side wall; 23. Top cover; 3. Burner cylinder; 4. Swirl device; 5. Rib; 6. Venturi tube; 7. Night lamp; 71. Gas inlet pipe; 72. Ignition device; 8. Drain pipe. Detailed Implementation

[0029] Exemplary embodiments of the present invention are described in detail below. While these exemplary embodiments have been described in sufficient detail to enable those skilled in the art to practice the present invention, it should be understood that other embodiments may be implemented and various changes may be made to the present invention without departing from its spirit and scope. The more detailed description of embodiments of the present invention below is not intended to limit the scope of the claimed invention, but is merely illustrative and does not limit the description of the features and characteristics of the invention, in order to provide the best mode for carrying out the invention and sufficient to enable those skilled in the art to practice it. Therefore, the scope of the present invention is defined only by the appended claims.

[0030] Example 1

[0031] A rainproof venting burner is used to vent combustible gas in pipelines. Its specific structure and technical effects are described in detail below.

[0032] like Figure 1 As shown, the burner includes a burner body 3, and an air inlet 1 is provided at the bottom of the burner body 3.

[0033] A rain cover 2 is installed at the bottom of the burner body 3. The rain cover 2 includes an annular plate 21, a side wall 22, and a top cover 23. The annular plate 21 is horizontally positioned and fixedly connected to the inner wall of the burner body 3, with a through hole in its center connecting to the air inlet 1. The side wall 22 is vertically mounted on the annular plate 21 and arranged around the through hole, with air holes provided on the side wall 22. In this embodiment, there are multiple air holes arranged circumferentially along the side wall 22. The top cover 23 is fixedly mounted on the side wall 22, covering the top of the side wall 22. Drainage holes are provided on the wall surface of the burner body 3 above the annular plate 21.

[0034] Unlike existing venting burners that have a rainproof structure at the top, this embodiment installs a rain shield 2 at the bottom of the burner body 3. The top cover 23 of the rain shield 2 can block rainwater and direct it onto the annular plate 21, and then discharge it through the drain hole. Meanwhile, the vent holes on the side wall 22 allow the vented gas to move upwards through the vent holes, ensuring the normal operation of the venting burner. This solves the problems of the existing burner top rainproof structure having a short lifespan due to high temperatures and interfering with the discharge of combustion gas.

[0035] In this embodiment, the height of the top cover 23 gradually decreases from its middle to its edge, allowing rainwater to flow smoothly from the top cover 23 onto the annular plate 21. At the same time, the edge of the top cover 23 extends beyond the side wall 22, and the horizontal distance between the top cover 23 and the side wall 22 is ≥50mm, which can prevent rainwater from flowing into the air hole along the side wall 22 and causing water accumulation at the bottom of the burner.

[0036] In addition, a drain pipe 8 is connected to the outside of the drain hole, which can smoothly drain the rainwater on the annular plate 21. The drain pipe 8 has a U-shaped structure, which allows a certain amount of rainwater to be stored inside the drain pipe 8, thereby playing a water seal role when the burner is working normally and ensuring the combustion effect of the burner.

[0037] The upper part of the burner shell 3 is equipped with a Venturi tube 6 and a swirl device 4. The swirl device 4 uses swirl vanes at a certain angle (20-35°) to the axis of the venting burner. The center of the swirl device 4 is a straight section, where approximately 60% of the flow is direct and approximately 40% is swirling. The function of the swirl device 4 is to stabilize the flame and enhance mixing. The swirl device 4 is welded to the venting burner shell. The Venturi tube 6 is installed externally on the swirl device 4, serving to guide the flow and stabilize the flame during operation. Multiple stiffening plates 5 are also installed externally on the burner shell 3 to improve the structural strength of the burner.

[0038] A pilot light 7 is mounted on the outside of the burner body 3. The pilot light 7 is equipped with a gas inlet pipe 71 and an igniter 72. The gas inlet pipe 71 is used to connect to external fuel, which can be natural gas or liquefied petroleum gas. The pilot light 7 provides an ignition source for the venting burner, while the igniter 72 is used to ignite the pilot light 7.

[0039] In summary, the rainproof venting burner of this embodiment improves the rainproof structure of the venting burner, enabling rainwater to be smoothly discharged from the venting burner without affecting its normal operation.

Claims

1. A rainproof venting burner, comprising a burner cylinder (3), wherein the bottom of the burner cylinder (3) is provided with an air inlet (1), characterized in that: The bottom of the burner cylinder (3) is equipped with a rain cover (2), which includes an annular plate (21), a side wall (22) and a top cover (23). The annular plate (21) is horizontally arranged and fixedly connected to the inner wall of the burner cylinder (3), and a through hole is opened in the middle to connect the air inlet (1). The side wall (22) is vertically installed on the annular plate (21) and arranged around the through hole. An air hole is opened on the side wall (22). The top cover (23) is fixedly installed on the side wall (22) to cover the top of the side wall (22). A drain hole is opened on the wall surface of the burner cylinder (3) above the annular plate (21).

2. The rainproof venting burner according to claim 1, characterized in that: A drain pipe (8) is connected to the outside of the drain hole.

3. A rainproof venting burner according to claim 2, characterized in that: The drain pipe (8) has a U-shaped structure.

4. A rainproof venting burner according to claim 1, characterized in that: The height of the top cover (23) gradually decreases from its middle part to its edge.

5. A rainproof venting burner according to claim 4, characterized in that: The edge of the top cover (23) extends out of the side wall (22) and the horizontal distance between the top cover (23) and the side wall (22) is ≥50mm.

6. A rainproof venting burner according to claim 5, characterized in that: The pores are multiple and arranged circumferentially along the sidewall (22).

7. A rainproof venting burner according to any one of claims 1-6, characterized in that: The burner cylinder (3) is equipped with a continuous lamp (7) on the outside, and the continuous lamp (7) is provided with a gas inlet pipe (71) and an igniter (72).

8. A rainproof venting burner according to any one of claims 1-6, characterized in that: The upper part of the burner cylinder (3) is equipped with a Venturi tube (6).

9. A rainproof venting burner according to any one of claims 1-6, characterized in that: The burner cylinder (3) is equipped with a swirl device (4).

10. A rainproof venting burner according to any one of claims 1-6, characterized in that: The burner cylinder (3) has a stiffening plate (5) on the upper outer side.

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