Safety pressure relief facility

Abstract

The utility model discloses a safety pressure relief facility which comprises a safety pressure relief mechanism, a safety pressure relief valve and a pressure relief valve. The gas leakage reducing mechanism comprises a fixing frame, a supporting frame is fixedly connected to the circumferential outer wall of the fixing frame, two connecting frames are fixedly connected to the outer wall of the supporting frame, protective covers are hinged to the outer walls of the connecting frames, and sealing plates are fixedly connected to the outer walls of the ends, away from the connecting frames, of the protective covers. Magnetic rods are fixedly connected to the outer wall of the sealing plate, the two connecting magnetic rods attract each other, corresponding holes are formed in the outer wall of the sealing plate, limiting rods corresponding to the corresponding holes are fixedly connected to the outer wall of the sealing plate, two corresponding flanges are fixedly connected to the same side of the circumferential outer wall of the main pipe at equal intervals, and connecting flanges and limiting mechanisms are connected to the outer walls of the corresponding flanges through bolts. The device has the advantages that the sealing effect of the joint of the fixed flange and the connecting flange is improved through the sealing plate, the protective cover and the fixed flange, and leakage of hydrogen from the joint is reduced.

Description

Technical Field

[0001] The utility model relates to the technical field of process gas pipelines, in particular to a safety pressure relief facility. Background Art

[0002] The gasification device in the hydrogen production center adopts the GE water slurry pressurized gasification technology, with water slurry and pure oxygen as raw materials, and partial oxidation reaction is carried out in the gasifier to produce process gas mainly composed of CO and H2. There is only one start-up and shutdown pressure relief pipeline designed for the process gas pipeline. When the cut-off valve of the vent pipeline fails, the system has no standby pressure relief channel.

[0003] When the existing safety pressure relief facilities connect pipelines to each other, they are generally fixedly connected through flanges. However, this connection method is likely to cause hydrogen to leak from the connection, increasing the risk of forming an explosive mixture after accumulation. Therefore, a safety pressure relief facility is needed to reduce hydrogen leakage. Summary of the Utility Model

[0004] The purpose of the utility model is to provide a safety pressure relief facility to solve the problem proposed in the above background art that when the existing safety pressure relief facilities connect pipelines to each other, they are generally fixedly connected through flanges, but this connection method is likely to cause hydrogen to leak from the connection, increasing the risk of forming an explosive mixture after accumulation.

[0005] To solve the above technical problems, the utility model is realized through the following technical solutions:

[0006] The utility model is a safety pressure relief facility, including:

[0007] A safety pressure relief mechanism, the safety pressure relief mechanism includes a main pipe;

[0008] A mechanism for reducing gas leakage, the mechanism for reducing gas leakage includes a fixing frame, a support frame is fixedly connected to the circumferential outer wall of the fixing frame, two connecting frames are fixedly connected to the outer wall of the support frame, a protective cover is hinged to the outer wall of the connecting frame, a sealing plate is fixedly connected to the outer wall of the protective cover away from the connecting frame, a magnetic rod is fixedly connected to the outer wall of the sealing plate, the two connecting magnetic rods adsorb each other, and a corresponding hole is opened on the outer wall of the sealing plate, and a limiting rod corresponding to the corresponding hole is fixedly connected.

[0009] Further, two corresponding flanges are fixedly connected to the circumferential outer wall of the main pipe at equal intervals on the same side, and a connecting flange is bolted to the outer wall of the corresponding flange;

[0010] Further, a connecting pipe is fixedly connected to the inner wall of the connecting flange, a connecting flange is fixedly connected to the outer wall of the other end of the connecting pipe, and a fixed flange is bolted to the outer wall of the connecting flange away from the main pipe;

[0011] Furthermore, a pressure relief valve is fixedly connected to the outer wall of the fixed flange. One end of the pressure relief valve away from the main pipe is fixedly connected to a fixed flange, and the fixing bracket is fixedly connected to the outer wall of the fixed flange.

[0012] Furthermore, a limiting mechanism is further included. The limiting mechanism includes a fixed cylinder fixedly connected to the inner wall of a bolt hole of the connecting flange. A rotating frame is threadedly connected to the inner circumferential wall of the fixed cylinder, and a push rod is fixedly connected to the outer wall of the rotating frame.

[0013] Furthermore, a limiting hole is penetrated and opened on the outer wall of the end of the fixed cylinder. A limiting ball is movably connected to the inner wall of the limiting hole, and the diameter of the end of the push rod is equal to the inner diameter of the fixed cylinder.

[0014] Compared with the prior art, the advantages of the present utility model are as follows:

[0015] First, in the present utility model, after connecting the connecting pipe with the pressure relief valve and the main pipe, manually disassemble the two adsorbed sealing plates, and then rotate the protective cover through the connecting frame. When the two sealing plates are in contact after rotation, insert the limiting rod into the corresponding hole to limit the two sealing plates. The sealing effect of the connection between the fixed flange and the connecting flange is improved through the sealing plate, the protective cover and the fixed flange, reducing the leakage of hydrogen from the connection.

[0016] Second, based on the beneficial effect one, set the maximum pressures of the two pressure relief valves to be the same. When the hydrogen flowing through the main pipe exceeds the maximum pressure of the first pressure relief valve, the first pressure relief valve is used to relieve the pressure of the gas for protection. When the first pressure relief valve is damaged, the second pressure relief valve is used to relieve the pressure of the gas for protection, protecting the hydrogen flowing through the main pipe from pressure relief. When connecting the connecting pipe, insert the fixed cylinder into any bolt hole of the fixed flange, rotate the rotating frame to drive the push rod to approach the limiting ball and push the limiting ball out of the limiting hole to contact the inner wall of the fixed flange to limit the connecting flange. After the connecting flange can be quickly positioned, it is convenient for installation and fixation. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] In order to more clearly illustrate the technical solutions of the embodiments of the present utility model, the drawings required for describing the embodiments will be briefly introduced below. Obviously, the drawings in the following description are only some embodiments of the present utility model. For those of ordinary skill in the art, other drawings can be obtained based on these drawings without creative efforts.

[0018] Figure 1 It is a schematic diagram of the overall structure of the present utility model;

[0019] Figure 2 It is a schematic diagram of the mechanism for reducing gas leakage of the present utility model;

[0020] Figure 3Schematic diagram of the limiting mechanism of the present utility model;

[0021] Figure 4 For the present utility model as Figure 1 Shown enlarged view of A.

[0022] In the attached drawings, the list of components represented by each reference numeral is as follows:

[0023] 101, connecting pipe; 102, connecting flange; 103, pressure relief valve; 104, fixed flange; 105, main pipe; 106, corresponding flange; 201, fixing bracket; 202, support bracket; 204, connecting bracket; 205, protective cover; 206, sealing plate; 207, limiting rod; 208, magnetic rod; 301, rotating bracket; 302, fixed cylinder; 303, push rod; 304, limiting hole; 305, limiting ball. Detailed implementation manners

[0024] To make the above objects, features and advantages of the present utility model more obvious and understandable, the following will describe the detailed implementation manners of the present utility model in conjunction with the attached drawings.

[0025] In the following description, many specific details are set forth to facilitate a full understanding of the present utility model. However, the present utility model can also be implemented in other ways different from those described herein. Those skilled in the art can make similar extensions without departing from the connotation of the present utility model. Therefore, the present utility model is not limited by the specific implementation manners disclosed below.

[0026] To make the purpose, technical solutions and advantages of the present utility model clearer, the following will further describe the implementation manners of the present utility model in conjunction with the attached drawings in detail.

[0027] In the description of the present application, it should be noted that the orientation or positional relationship indicated by the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inside", "outside", etc. is based on the orientation or positional relationship shown in the attached drawings. It is only for the convenience of describing the present application 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 application. In addition, the terms "first", "second", "third" are only used for descriptive purposes and cannot be construed as indicating or implying relative importance.

[0028] Please refer to Figures 1-4 As shown, this embodiment is a safety pressure relief facility, including:

[0029] A safety pressure relief mechanism, the safety pressure relief mechanism includes a main pipe 105;

[0030] The gas is transported through the main pipe 105;

[0031] Gas leakage reduction mechanism. The gas leakage reduction mechanism includes a fixing frame 201. A support frame 202 is fixedly connected to the outer circumferential wall of the fixing frame 201. Two connecting frames 204 are fixedly connected to the outer wall of the support frame 202. A protective cover 205 is hinged to the outer wall of the connecting frame 204. A sealing plate 206 is fixedly connected to the end of the protective cover 205 away from the connecting frame 204. A magnetic rod 208 is fixedly connected to the outer wall of the sealing plate 206. The two connecting magnetic rods 208 attract each other. Corresponding holes are formed in the outer wall of the sealing plate 206, and a limiting rod 207 corresponding to the corresponding holes is fixedly connected thereto.

[0032] The support frame 202 is supported by the fixing frame 201. The connecting frame 204 rotates through the support frame 202. The protective cover 205 is supported by the connecting frame 204. The protective cover 205 rotates through the connecting frame 204. The protective cover 205 drives the sealing plate 206 to rotate, so that the sealing plates 206 contact each other. The two sealing plates 206 are limited by the limiting rod 207. The sealing effect of the flange connection is improved by the protective cover 205 and the sealing plate 206.

[0033] Working principle: After connecting the connecting pipe 101 to the pressure relief valve 103 and the main pipe 105, manually separate the two adsorbed sealing plates 206, and then rotate the protective cover 205 through the connecting frame 204. When the two sealing plates 206 come into contact, insert the limiting rod 207 into the corresponding hole to limit the two sealing plates 206. The sealing effect of the connection between the fixed flange 104 and the connecting flange 102 is improved by the sealing plate 206, the protective cover 205 and the fixed flange 104, reducing the leakage of hydrogen from the connection.

[0034] In this step, the sealing effect of the connection between the fixed flange 104 and the connecting flange 102 is improved by the sealing plate 206, the protective cover 205 and the fixed flange 104, reducing the leakage of hydrogen from the connection.

[0035] Please refer to Figures 1-4 As shown, based on the above-mentioned Embodiment 1, this embodiment further includes:

[0036] Two corresponding flanges 106 are fixedly connected to the outer circumferential wall of the main pipe 105 at the same side and equidistantly. A connecting flange 102 is bolted to the outer wall of the corresponding flange 106.

[0037] The connecting pipe 101 is connected to the main pipe 105 through the connection of the corresponding flange 106 and the connecting flange 102.

[0038] A connecting pipe 101 is fixedly connected to the inner wall of the connecting flange 102. The other end of the connecting pipe 101 is fixedly connected to a connecting flange 102. A fixed flange 104 is bolted to the outer wall of the connecting flange 102 away from the main pipe 105.

[0039] The gas is transported to the pressure relief valve 103 through the connecting pipe 101, and the connecting pipe 101 is connected to the pressure relief valve 103 through the connection of the connecting flange 102 and the fixed flange 104;

[0040] The outer wall of the fixed flange 104 is fixedly connected with the pressure relief valve 103, one end of the pressure relief valve 103 away from the main pipe 105 is fixedly connected with the fixed flange 104, and the fixing frame 201 is fixedly connected to the outer wall of the fixed flange 104;

[0041] The pressure relief valve 103 is used to protect the gas with too high pressure, and the fixed flange 104 is used to support the fixing frame 201;

[0042] The limiting mechanism includes a fixed cylinder 302 fixedly connected to the inner wall of a bolt hole of the connecting flange 102. A rotating frame 301 is threadedly connected to the inner circumferential wall of the fixed cylinder 302, and a push rod 303 is fixedly connected to the outer wall of the rotating frame 301;

[0043] The fixed cylinder 302 supports the rotating frame 301, and the rotating frame 301 drives the push rod 303 to move;

[0044] A limiting hole 304 is penetrated and opened on the outer wall of the end of the fixed cylinder 302. A limiting ball 305 is movably connected to the inner wall of the limiting hole 304, and the diameter of the end of the push rod 303 is equal to the inner diameter of the fixed cylinder 302;

[0045] The push rod 303 is used to push the limiting ball 305 to extend out of the limiting hole 304 and contact with the inner wall of the fixed flange 104;

[0046] Working principle: It is set that the maximum pressures of the two pressure relief valves 103 are the same. When the hydrogen flowing through the main pipe 105 exceeds the maximum pressure of the first pressure relief valve 103, the first pressure relief valve 103 is used to protect the gas from overpressure. When the first pressure relief valve 103 is damaged, the second pressure relief valve 103 is used to protect the gas from overpressure. When connecting the connecting pipe 101, the fixed cylinder 302 is inserted into any bolt hole of the fixed flange 104, and the rotating frame 301 is rotated to drive the push rod 303 to approach the limiting ball 305 and push the limiting ball 305 to extend out of the limiting hole 304 to contact the inner wall of the fixed flange 104 to limit the connecting flange 102;

[0047] This step can quickly position the connecting flange 102 and facilitate installation and fixation.

[0048] In the description of the present utility model, it should also be noted that, unless otherwise clearly specified and defined, the terms "arranged", "installed", "connected" and "coupled" should be understood in a broad sense. For example, it may be a fixed connection, a detachable connection or an integral connection; it may be a mechanical connection or an electrical connection; it may be directly connected or indirectly connected through an intermediate medium, and it may be the communication inside two components. For those of ordinary skill in the art, the specific meanings of the above terms in the present utility model can be understood according to specific circumstances.

[0049] Finally, it should be noted that the above are only the preferred embodiments of the present utility model and are not intended to limit the present utility model. Although the present utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or perform equivalent replacements for some of the technical features. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present utility model shall be included in the protection scope of the present utility model.

Claims

1. A safety pressure relief facility, characterized in that, Comprising: A safety pressure relief mechanism, the safety pressure relief mechanism comprising a main pipe (105); A gas leakage reduction mechanism, the gas leakage reduction mechanism comprising a fixing frame (201), a support frame (202) fixedly connected to the outer circumferential wall of the fixing frame (201), two connecting frames (204) fixedly connected to the outer wall of the support frame (202), a protective cover (205) hinged to the outer wall of the connecting frame (204), a sealing plate (206) fixedly connected to the outer wall of the protective cover (205) away from the connecting frame (204), a magnetic rod (208) fixedly connected to the outer wall of the sealing plate (206), the two connecting magnetic rods (208) attracting each other, and a corresponding hole formed in the outer wall of the sealing plate (206) and a limiting rod (207) corresponding to the corresponding hole fixedly connected thereto.

2. The safety relief facility according to claim 1, characterized in that, Two corresponding flanges (106) are fixedly connected to the outer circumferential wall of the main pipe (105) at the same side and equidistantly, and a connecting flange (102) is bolted to the outer wall of the corresponding flange (106).

3. The safety relief facility according to claim 2, characterized in that, A connecting pipe (101) is fixedly connected to the inner wall of the connecting flange (102), a connecting flange (102) is fixedly connected to the outer wall of the other end of the connecting pipe (101), and a fixing flange (104) is bolted to the outer wall of the connecting flange (102) away from the main pipe (105).

4. The safety relief facility according to claim 3, characterized in that, A pressure relief valve (103) is fixedly connected to the outer wall of the fixing flange (104), a fixing flange (104) is fixedly connected to the end of the pressure relief valve (103) away from the main pipe (105), and the fixing frame (201) is fixedly connected to the outer wall of the fixing flange (104).

5. The safety relief facility according to claim 2, characterized in that, It further comprises a limiting mechanism, the limiting mechanism comprising a fixing cylinder (302) fixedly connected to the inner wall of a bolt hole of the connecting flange (102), a rotating frame (301) threadedly connected to the inner circumferential wall of the fixing cylinder (302), and a push rod (303) fixedly connected to the outer wall of the rotating frame (301).

6. The safety pressure relief facility according to claim 5, characterized in that, A limiting hole (304) is formed through the outer wall of the end of the fixing cylinder (302), a limiting ball (305) is movably connected to the inner wall of the limiting hole (304), and the diameter of the end of the push rod (303) is equal to the inner diameter of the fixing cylinder (302).

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