Explosion-proof valve convenient to disassemble and assemble

Abstract

The explosion-proof valve comprises a main body block, a round hole is formed in the left side of the main body block, a partition structure is arranged on the outer side of the main body block, first round pipes are fixedly connected to the left side and the right side of the main body block, and second round pipes are slidably connected to the interiors of the first round pipes; a sealing structure is arranged between the first circular pipe and the second circular pipe and comprises a first flange plate, an annular groove is formed in the outer side of the first flange plate, a first annular block is slidably connected to the outer side of the second circular pipe, a second annular block is arranged in the annular groove, and a second flange plate is fixedly connected to the outer side of the second annular block. A stop block is arranged between the second annular block and the second round pipe. Through the arrangement of the sealing structure, even if the sealing gasket between the flanges is damaged, the sealing performance between the pipelines cannot be reduced, the threaded connection between the pipelines enables the sealing performance of the pipelines to be better, and the workload of workers for replacing the damaged sealing gasket is reduced.

Description

TECHNICAL FIELD

[0001] The utility model relates to the technical field of explosion isolation valve, especially to an explosion isolation valve convenient to dismount. BACKGROUND

[0002] The explosion isolation valve is a kind of safety equipment for preventing explosion propagation, usually installed on pipeline or equipment, can be closed quickly when explosion occurs, prevents flame and pressure wave propagation, protects downstream equipment and personnel safety.

[0003] One-way explosion isolation valve can only prevent explosion propagation in one direction, usually used in pipeline system with clear explosion propagation direction.The existing one-way explosion isolation valve is usually installed using flange plate bolt, convenient to dismount, also can make pipeline connection more closely, but the sealing gasket between flange plate is easy to wear and damage for long time use, lead to the sealing property of pipeline connection to be poor, and also need staff to replace new sealing gasket regularly, time-consuming and laborious, increase the workload of staff. UTILITY MODEL CONTENT

[0004] In order to overcome the deficiency that the sealing property is reduced due to the damage of sealing gasket between flange connection in the prior art, one of the purposes of the utility model is to provide an explosion isolation valve convenient to dismount.

[0005] One of the purposes of the utility model is realized by the following technical scheme: an explosion isolation valve convenient to dismount, including main body block: the left side of the main body block is provided with a round hole, the outer side of the main body block is provided with a partition structure, the left and right sides of the main body block are fixedly connected with round pipe one, the inside of the round pipe one is slidably connected with round pipe two, and sealing structure is arranged between the round pipe one and the round pipe two.

[0006] The sealing structure includes flange plate one, the outer side of the flange plate one is provided with annular groove, the outer side of the round pipe two is slidably connected with annular block one, the inside of the annular groove is provided with annular block two, the outer side of the annular block two is fixedly connected with flange plate two, and blocking block is arranged between the annular block two and the round pipe two.It is guaranteed that the damage of sealing gasket between flange plates does not reduce the sealing property between pipelines.

[0007] According to the explosion isolation valve convenient to dismount, the partition structure includes partition plate, the partition plate is arranged in the inside of the round hole, the partition plate and the main body block are movably connected, the right side of the partition plate is fixedly connected with fixed block, the front side of the fixed block is provided with circular hole two, the front side of the main body block is provided with circular hole one, the inside of the circular hole one and the circular hole two is provided with round rod one, the outer side of the round rod one is fixedly connected with round rod two, and the other end of the round rod two is fixedly connected with gravity hammer.It is favorable to isolate explosion propagation from explosion direction.

[0008] According to the explosion-proof valve convenient to disassemble, the round rod one and the fixed block are fixedly connected, and the round rod one and the main block are rotationally connected.

[0009] According to the explosion-proof valve convenient to disassemble, the front side of the main block is fixedly connected with an elastic block, a semicircular groove is formed in the left side of the elastic block, and the round rod two and the elastic block are movably connected.

[0010] According to the explosion-proof valve convenient to disassemble, the flange plate one and the flange plate two are arranged to be bolted.

[0011] According to the explosion-proof valve convenient to disassemble, the blocking block is provided with two, and the blocking block and the round pipe two are fixedly connected.

[0012] According to the explosion-proof valve convenient to disassemble, the annular block two and the round pipe one are screw-connected, and the annular block two and the flange plate one are screw-connected.

[0013] According to the explosion-proof valve convenient to disassemble, the annular block two and the annular block one are fixedly connected.

[0014] The above-mentioned scheme has the beneficial effects that even if the sealing gasket between the flanges is damaged, the sealing property between the pipelines is not reduced, the screw connection between the pipelines makes the pipeline sealing property better, and the workload of replacing the damaged sealing gasket is reduced.

[0015] The additional aspects and advantages of the present application will be partially given in the following description, partially become obvious from the following description, or be understood through the practice of the present application. BRIEF DESCRIPTION OF DRAWINGS

[0016] The present application will be further described below in combination with the drawings and embodiments.

[0017] Figure 1 It is a structure schematic view of the explosion-proof valve convenient to disassemble according to the present application;

[0018] Figure 2 It is a structure schematic view of part of the structure of the explosion-proof valve convenient to disassemble according to the present application;

[0019] Figure 3 It is a structure schematic view of part of the explosion-proof valve convenient to disassemble according to the present application;

[0020] Figure 4A structure schematic view of the first part sealing structure of the explosion-proof valve convenient to disassemble of the utility model;

[0021] Figure 5 A structure schematic view of the second part sealing structure of the explosion-proof valve convenient to disassemble of the utility model;

[0022] Figure 6 A structure schematic view of the third part sealing structure of the explosion-proof valve convenient to disassemble of the utility model.

[0023] Legend:

[0024] 1, main body block;2, round hole;3, partition structure;301, partition plate;302, fixed block;303, round hole one;304, round hole two;305, round rod one;306, round rod two;307, gravity hammer;4, elastic block;5, semicircular groove;6, round pipe one;7, sealing structure;701, flange plate one;702, annular groove;703, annular block one;704, blocking block;705, annular block two;706, flange plate two;8, round pipe two. Specific embodiments

[0025] This part will describe the specific embodiments of the utility model in detail, the preferred embodiments of the utility model are shown in the drawings, the role of the drawings is to supplement the description of the text part with graphics, so that people can intuitively and visually understand each technical feature and the overall technical scheme of the utility model, but it cannot be understood as the limitation of the protection scope of the utility model.

[0026] Refer to Figures 1-6The utility model provides a kind of explosion-proof valve convenient to disassemble, including main block 1: the left side of main block 1 is opened with round hole 2, the outside of main block 1 is provided with partition structure 3, the left and right sides of main block 1 are fixedly connected with round pipe one 6, the inside of round pipe one 6 is slidably connected with round pipe two 8, sealing structure 7 is arranged between round pipe one 6 and round pipe two 8, sealing structure 7 includes flange plate one 701, annular groove 702 is opened in the outside of flange plate one 701, annular block one 703 is slidably connected with the outside of round pipe two 8, annular block two 705 is arranged in the inside of annular groove 702, flange plate two 706 is fixedly connected with the outside of annular block two 705, blocking block 704 is arranged between annular block two 705 and round pipe two 8, flange plate one 701 and flange plate two 706 are arranged as bolt connection, blocking block 704 is provided with two, blocking block 704 and round pipe two 8 are fixedly connected, annular block two 705 and round pipe one 6 are screwed, annular block two 705 and flange plate one 701 are screwed, annular block two 705 and annular block one 703 are fixedly connected, when installing explosion-proof valve and fixing pipeline, staff first slides into round pipe one 6 with the round pipe two 8 of one side, then rotates annular block two 705, annular block two 705 and round pipe one 6 are screwed, then rotate into the annular groove 702 of flange plate one 701, so that annular block two 705 and flange plate are screwed, finally staff fixes flange plate one 701, flange plate two 706 using bolt, and the round pipe two 8 of other side is also fixed in this way, whether adding sealing washer between flange plate one 701 and flange plate two 706 can be selected, and it will not affect the sealing property between pipeline, and when disassembling, it is also very simple, the bolt of flange plate is disassembled, then annular block two 705 is rotated and screwed out, simple and fast, save time and effort, the arrangement of sealing structure 7, even if the sealing washer between flange is damaged, will not reduce the sealing property between pipeline, and the threaded connection between pipeline makes the pipeline sealing property better, reduces the workload of staff replacing damaged sealing washer.

[0027] The partition structure 3 comprises a partition plate 301 arranged inside the round hole 2, the partition plate 301 is movably connected with the main body block 1, the right side of the partition plate 301 is fixedly connected with a fixed block 302, the front side of the fixed block 302 is provided with a round hole two 304, the front side of the main body block 1 is provided with a round hole one 303, the inside of the round hole one 303 and the round hole two 304 is provided with a round rod one 305, the outside of the round rod one 305 is fixedly connected with a round rod two 306, the other end of the round rod two 306 is fixedly connected with a gravity hammer 307, the round rod one 305 is fixedly connected with the fixed block 302, the round rod one 305 is movably connected with the main body block 1, the front side of the main body block 1 is fixedly connected with an elastic block 4, the left side of the elastic block 4 is provided with a semicircular groove 5, the round rod two 306 is movably connected with the elastic block 4, under normal circumstances, when the partition plate 301 is used, the staff controls the gravity hammer 307 to tilt to the left side, in this process, the round rod two 306 rotates with the round rod one 305, the round rod one 305 rotates with the fixed block 302, the fixed block 302 rotates with the partition plate 301, due to the action of the gravity hammer 307, the partition plate 301 keeps in the tilted state, when the pipeline encounters explosion, the explosion impact force can reset the partition plate 301, and the round rod two 306 is clamped into the semicircular groove 5 of the elastic block 4, so as to fix and prevent the partition plate 301 from rotating, thereby preventing the spread of explosion.

[0028] Working principle: when the staff uses the one-way explosion isolation valve in the pipeline where the explosion direction is clear, first, the round pipe two 8 is slid into the round pipe one 6, and then the sealing structure 7 is used for fixing, in the process of normally using the partition valve, the partition structure 3 is first opened, when explosion occurs in the pipeline, the explosion impact force drives the partition plate 301, and the round rod two 306 is fixed in the semicircular groove 5 of the elastic block 4, so as to block the spread of explosion, then the round rod two 306 is pulled out of the semicircular groove 5 to continue normal use, wherein the sealing property of the sealing structure 7 is improved, even if the sealing gasket in the flange connection is damaged, the sealing property between the pipelines will not be reduced.

[0029] The above-mentioned embodiments of the utility model are described in detail in combination with the drawings, but the utility model is not limited to the above-mentioned embodiments, and various changes can be made within the knowledge range possessed by the ordinary skilled in the art without departing from the purpose of the utility model.

Claims

1. A flameproof valve which is easy to disassemble, characterized in that, Including the main body block (1): the left side of the main body block (1) is provided with a round hole (2), the outer side of the main body block (1) is provided with a partition structure (3), the left and right sides of the main body block (1) are fixedly connected with a circular pipe one (6), the inside of the circular pipe one (6) is slidably connected with a circular pipe two (8), and the circular pipe one (6) and the circular pipe two (8) are provided with a sealing structure (7); The sealing structure (7) includes a flange plate one (701), the outer side of the flange plate one (701) is provided with an annular groove (702), the outer side of the circular pipe two (8) is slidably connected with an annular block one (703), the inside of the annular groove (702) is provided with an annular block two (705), the outer side of the annular block two (705) is fixedly connected with a flange plate two (706), and the annular block two (705) and the circular pipe two (8) are provided with a blocking block (704).

2. A flameproof valve according to claim 1, wherein The partition structure (3) includes a partition plate (301), the partition plate (301) is arranged in the inside of the round hole (2), the partition plate (301) and the main body block (1) are movably connected, the right side of the partition plate (301) is fixedly connected with a fixed block (302), the front side of the fixed block (302) is provided with a circular hole two (304), the front side of the main body block (1) is provided with a circular hole one (303), the inside of the circular hole one (303) and the circular hole two (304) is provided with a circular rod one (305), the outer side of the circular rod one (305) is fixedly connected with a circular rod two (306), and the other end of the circular rod two (306) is fixedly connected with a gravity hammer (307).

3. A flameproof valve according to claim 2, wherein The circular rod one (305) and the fixed block (302) are fixedly connected, and the circular rod one (305) and the main body block (1) are rotatably connected.

4. A flameproof valve according to claim 2, wherein The front side of the main body block (1) is fixedly connected with an elastic block (4), the left side of the elastic block (4) is provided with a semicircular groove (5), and the circular rod two (306) and the elastic block (4) are movably connected.

5. The flameproof valve of claim 1, wherein, The flange plate one (701) and the flange plate two (706) are connected through bolts.

6. The flameproof valve of claim 1, wherein, The blocking block (704) is provided with two, and the blocking block (704) and the circular pipe two (8) are fixedly connected.

7. The flameproof valve of claim 1, wherein, The annular block two (705) and the circular pipe one (6) are threadedly connected, and the annular block two (705) and the flange plate one (701) are threadedly connected.

8. The flameproof valve of claim 1, wherein, The annular block two (705) and the annular block one (703) are fixedly connected.

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