Coke oven flue gas explosion-proof one-way rebound valve

Abstract

The utility model discloses a coke oven flue gas explosion-proof one-way rebound valve which comprises a valve body, a connecting pipe is arranged on the upper surface of the valve body, a sealing ring is arranged on the upper surface of the connecting pipe, a valve cover is arranged on the upper surface of the sealing ring, a groove is formed in the upper surface of the connecting pipe, a fixing base is fixedly connected to the inner bottom face of the groove, and the valve cover is fixedly connected to the inner bottom face of the groove. A second spring is fixedly connected to the upper surface of the fixing seat, a guide rod is fixedly connected to the upper surface of the fixing seat, the second spring is located on the periphery of the guide rod, the second spring penetrates through the sealing ring and is fixedly connected with the valve deck, and a reinforcing layer is fixedly connected to the inner wall of the valve body. A second fixing block is fixedly connected to the inner wall of the upper portion of the reinforcing layer, and a pressure relief plate is rotationally connected to one side of the second fixing block. According to the utility model, the structure is simple, the end cover can be effectively rebounded, the normal operation of pressure relief is ensured, and the safety is high.

Description

Technical Field

[0001] The utility model relates to the technical field of valve bodies, in particular to a coke oven smoke explosion-proof one-way rebound valve. Background Art

[0002] A coke oven refers to a horizontal chamber coke oven whose main purpose is to produce metallurgical coke and can recover coking chemical products. It consists of a furnace body and ancillary equipment. The coke oven body consists of a furnace top, combustion chamber and carbonization chamber, inclined area, heat storage chamber and other parts, and is connected by flues and chimneys. During the use of the coke oven, a large amount of smoke will be generated, and these smoke need to be controlled by valves during the discharge process.

[0003] Nowadays, explosion-proof valves are mostly used for flue gas control. However, when the current explosion-proof valves are subjected to excessive pressure, they will still explode. At this time, the valves need to be decompressed to avoid the explosion. However, the current decompression of explosion-proof valves is mostly done by turning the fixing bolts to open the valve cover to achieve the decompression effect. This method is very inconvenient, and in the process of pressure relief, the flue gas will also cause harm to the operators. Therefore, it is necessary to design an explosion-proof rebound valve. Utility Model Content

[0004] The utility model aims to solve the shortcomings in the prior art and proposes a coke oven smoke explosion-proof one-way rebound valve.

[0005] In order to achieve the above-mentioned purpose, the utility model adopts the following technical scheme: a coke oven smoke explosion-proof one-way rebound valve, comprising a valve body, a connecting pipe is arranged on the upper surface of the valve body, a sealing ring is arranged on the upper surface of the connecting pipe, a valve cover is arranged on the upper surface of the sealing ring, a groove is arranged on the upper surface of the connecting pipe, a fixing seat is fixedly connected to the inner bottom surface of the groove, a second spring is fixedly connected to the upper surface of the fixing seat, a guide rod is fixedly connected to the upper surface of the fixing seat, the second spring is located on the periphery of the guide rod, and the second spring passes through the sealing ring and the valve cover and is fixedly connected together;

[0006] The inner wall of the valve body is fixedly connected to a reinforcement layer, the upper inner wall of the reinforcement layer is fixedly connected to a second fixed block, one side of the second fixed block is rotatably connected to a pressure relief plate, the inner bottom surface of the reinforcement layer is fixedly connected to a first fixed block, one side of the first fixed block is fixedly connected to a first spring, and one end of the first spring is fixedly connected to the pressure relief plate.

[0007] As a further description of the above technical solution:

[0008] A limiting groove is arranged on the surface of the sealing ring, and the second spring and the guide rod are both located inside the limiting groove.

[0009] As a further description of the above technical solution:

[0010] The guide rod passes through the sealing ring and contacts the valve cover.

[0011] As a further description of the above technical solution:

[0012] An end cover is arranged on the side of the valve body, and a gasket is fixedly connected to the inner wall of the end cover.

[0013] As a further description of the above technical solution:

[0014] Six groups of mounting holes are arranged on the surface of the end cover, and the six groups of mounting holes penetrate the end cover and are centrally symmetrical about the end cover.

[0015] As a further description of the above technical solution:

[0016] The upper surface of the valve body is fixedly connected with a reinforcing rib, and the reinforcing rib and the connecting pipe are fixedly connected together.

[0017] As a further description of the above technical solution:

[0018] The connecting pipe and the valve body are connected as one body, and the surfaces of the connecting pipe and the valve body are coated with ceramic paint.

[0019] As a further description of the above technical solution:

[0020] The material of the reinforcement layer is ceramic, and one end of the pressure relief plate is slidably connected to the inner bottom surface of the reinforcement layer.

[0021] The utility model has the following beneficial effects:

[0022] 1. In the utility model, the valve cover is driven to reset and rebound by the second spring, which avoids manual disassembly of the end cover for pressure relief. It not only avoids the possibility of valve explosion during the disassembly process causing damage to the operator, but also avoids the harm of smoke to the operator, and has high safety.

[0023] 2. In the utility model, by arranging a pressure relief plate inside the valve body and connecting the pressure relief plate through the first spring and the first fixing block, the smoke passing through the valve body can be decelerated and buffered, thereby improving the explosion-proof performance of the valve.

[0024] 3. In the utility model, by providing a reinforcement layer on the inner wall of the valve body, on the one hand, the strength of the valve body can be improved, thereby improving the explosion-proof effect of the valve; on the other hand, the smoke and the valve body can be isolated to prevent the smoke from corroding the valve body, thereby reducing the wall thickness of the valve body.

[0025] 4. In the utility model, a sealing ring is provided between the valve cover and the connecting pipe to ensure that the valve body has a good sealing effect, and a gasket is provided inside the end cover to ensure a close fit between the valve body and the connecting piece, thereby ensuring that the valve body can be used normally. BRIEF DESCRIPTION OF THE DRAWINGS

[0026] Figure 1 This is a structural schematic diagram of the coke oven smoke explosion-proof one-way rebound valve proposed by the utility model;

[0027] Figure 2 for Figure 1 The enlarged view of point A in the middle;

[0028] Figure 3 A side view of the coke oven smoke explosion-proof one-way rebound valve proposed by the utility model;

[0029] Figure 4 The utility model is a three-dimensional diagram of the coke oven smoke explosion-proof one-way rebound valve.

[0030] Legend:

[0031] 1. Valve body; 2. Reinforcement layer; 3. First spring; 4. First fixed block; 5. Pressure relief plate; 6. Second fixed block; 7. Reinforcement ribs; 8. Sealing ring; 9. Valve cover; 10. Connecting pipe; 11. End cover; 12. Groove; 13. Fixed seat; 14. Limiting groove; 15. Second spring; 16. Guide rod; 17. Washer; 18. Mounting hole. DETAILED DESCRIPTION

[0032] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0033] In the description of the present utility model, it should be noted that the orientation or position relationship indicated by the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inside", "outside", etc. is based on the orientation or position relationship shown in the drawings, which is only for the convenience of describing the present utility model and simplifying the description, and does not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation of the present utility model; the terms "first", "second", and "third" are only used for descriptive purposes, and cannot be understood as indicating or implying relative importance. In addition, unless otherwise clearly specified and limited, the terms "installed", "connected", and "connected" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or it can be indirectly connected through an intermediate medium, or it can be the internal communication of two elements. For ordinary technicians in this field, the specific meanings of the above terms in the present utility model can be understood according to specific circumstances.

[0034] Reference Figure 1-4 The utility model provides an embodiment: a coke oven smoke explosion-proof one-way rebound valve, comprising a valve body 1, a connecting pipe 10 is arranged on the upper surface of the valve body 1, the connecting pipe 10 and the valve body 1 are connected as one body, and the surfaces of the connecting pipe 10 and the valve body 1 are coated with ceramic paint, a sealing ring 8 is arranged on the upper surface of the connecting pipe 10, the sealing ring 8 ensures the sealing of the valve body 1, so that the valve can be used normally, a valve cover 9 is arranged on the upper surface of the sealing ring 8, a groove 12 is arranged on the upper surface of the connecting pipe 10, a fixing seat 13 is fixedly connected to the inner bottom surface of the groove 12, a second spring 15 is fixedly connected to the upper surface of the fixing seat 13, and the second spring 15 and the valve cover 9 are connected. The connection can realize the rebound of the valve cover 9 to achieve the pressure relief treatment of the valve, avoid manual pressure relief treatment, and improve the safety of valve use. The upper surface of the fixed seat 13 is fixedly connected with a guide rod 16, and the guide rod 16 can guide the second spring 15 to avoid the spring from bending, thereby affecting the rebound of the valve cover 9. The guide rod 16 penetrates the sealing ring 8 and contacts the valve cover 9. The second spring 15 is located on the periphery of the guide rod 16. The second spring 15 penetrates the sealing ring 8 and the valve cover 9 and is fixedly connected together. A limiting groove 14 is set on the surface of the sealing ring 8, and the second spring 15 and the guide rod 16 are both located inside the limiting groove 14.

[0035] A reinforcing layer 2 is fixedly connected to the inner wall of the valve body 1. The reinforcing layer 2 not only strengthens the thickness of the valve body 1, thereby improving the explosion-proof effect of the valve, but also isolates the flue gas and the valve body 1, which can prevent the flue gas from eroding the valve body 1 and improve the service life of the valve. A second fixed block 6 is fixedly connected to the upper inner wall of the reinforcing layer 2, and a pressure relief plate 5 is rotatably connected to one side of the second fixed block 6. The material of the reinforcing layer 2 is ceramic, and one end of the pressure relief plate 5 is slidably connected to the inner bottom surface of the reinforcing layer 2. A first fixed block 4 is fixedly connected to the inner bottom surface of the reinforcing layer 2, and a first spring 3 is fixedly connected to one side of the first fixed block 4. One end of the first spring 3 is fixedly connected to the pressure relief plate 5. The pressure relief plate 5 connected to the first spring 3 can decelerate and buffer the flue gas entering the valve body 1, effectively avoiding the valve from exploding due to excessive flue gas flow rate.

[0036] An end cover 11 is provided on the side of the valve body 1, a gasket 17 is fixedly connected to the inner wall of the end cover 11, six groups of mounting holes 18 are provided on the surface of the end cover 11, the six groups of mounting holes 18 penetrate the end cover 11 and are centrally symmetrical about the end cover 11, a reinforcing rib 7 is fixedly connected to the upper surface of the valve body 1, and the reinforcing rib 7 and the connecting pipe 10 are fixedly connected together.

[0037] Working principle: First, install the valve at the designated working position through the mounting hole 18 on the surface of the end cover 11. When the smoke enters the inside of the valve, it will first hit the pressure relief plate 5. At this time, the pressure relief plate 5 will slide along the reinforcement layer 2. At the same time, under the action of the first spring 3, the smoke flowing through the valve body 1 will be decompressed and buffered to avoid the valve from bursting due to excessive smoke flow rate. When the pressure of the valve is too high, the gas will push the valve cover 9 open, so that the smoke will flow out from the connecting pipe 10 to relieve the pressure on the valve. When the valve is decompressed to a certain extent, the gas is not enough to continue to push the valve cover 9 open. At this time, the second spring 15 is reset, thereby driving the valve cover 9 to rebound.

[0038] 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 substitutions for some of the technical features therein. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims

1. A coke oven smoke explosion-proof one-way rebound valve, comprising a valve body (1), characterized in that: The upper surface of the valve body (1) is provided with a connecting pipe (10), the upper surface of the connecting pipe (10) is provided with a sealing ring (8), the upper surface of the sealing ring (8) is provided with a valve cover (9), the upper surface of the connecting pipe (10) is provided with a groove (12), the inner bottom surface of the groove (12) is fixedly connected to a fixing seat (13), the upper surface of the fixing seat (13) is fixedly connected to a second spring (15), the upper surface of the fixing seat (13) is fixedly connected to a guide rod (16), the second spring (15) is located on the periphery of the guide rod (16), and the second spring (15) passes through the sealing ring (8) and the valve cover (9) and is fixedly connected together; The inner wall of the valve body (1) is fixedly connected to a reinforcing layer (2), the upper inner wall of the reinforcing layer (2) is fixedly connected to a second fixed block (6), one side of the second fixed block (6) is rotatably connected to a pressure relief plate (5), the inner bottom surface of the reinforcing layer (2) is fixedly connected to a first fixed block (4), one side of the first fixed block (4) is fixedly connected to a first spring (3), and one end of the first spring (3) is fixedly connected to the pressure relief plate (5).

2. The coke oven smoke explosion-proof one-way rebound valve according to claim 1 is characterized in that: A limiting groove (14) is provided on the surface of the sealing ring (8), and the second spring (15) and the guide rod (16) are both located inside the limiting groove (14).

3. The coke oven smoke explosion-proof one-way rebound valve according to claim 1 is characterized in that: The guide rod (16) penetrates the sealing ring (8) and contacts the valve cover (9).

4. The coke oven smoke explosion-proof one-way rebound valve according to claim 1, characterized in that: An end cover (11) is provided on the side of the valve body (1), and a gasket (17) is fixedly connected to the inner wall of the end cover (11).

5. The coke oven smoke explosion-proof one-way rebound valve according to claim 4 is characterized in that: Six groups of mounting holes (18) are arranged on the surface of the end cover (11), and the six groups of mounting holes (18) penetrate the end cover (11) and are centrally symmetrical with respect to the end cover (11).

6. The coke oven smoke explosion-proof one-way rebound valve according to claim 1, characterized in that: A reinforcing rib (7) is fixedly connected to the upper surface of the valve body (1), and the reinforcing rib (7) and the connecting pipe (10) are fixedly connected together.

7. The coke oven smoke explosion-proof one-way rebound valve according to claim 1, characterized in that: The connecting pipe (10) and the valve body (1) are connected as one piece, and the surfaces of the connecting pipe (10) and the valve body (1) are both coated with ceramic paint.

8. The coke oven smoke explosion-proof one-way rebound valve according to claim 1, characterized in that: The material of the reinforcement layer (2) is ceramic, and one end of the pressure relief plate (5) is slidably connected to the inner bottom surface of the reinforcement layer (2).

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