Pipeline explosion-proof protection device for gas valve well

Abstract

The utility model relates to the technical field of gas pipeline protection devices, in particular to a pipeline explosion-proof protection device for a gas valve well, which is characterized in that a gas pipe body is integrally and coaxially provided with a partial pressure explosion-proof component and a speed reduction explosion-proof component; the partial pressure explosion-proof assembly comprises two buffer pipes which are arranged at intervals in the transverse direction, the two buffer pipes and the gas pipe body are integrally and coaxially arranged, the inner diameter of the two buffer pipes is larger than that of the gas pipe body, and the opposite ends of the two buffer pipes fixedly communicate with a plurality of slow release pipes which are evenly distributed around the axes of the buffer pipes; the speed reduction anti-explosion assembly comprises two sets of buffer assemblies which are correspondingly arranged up and down relative to the axis of the gas pipe body, the left ends of the buffer assemblies are fixedly connected with the inlet end of the gas pipe body, and the right ends of the two sets of buffer assemblies are jointly and fixedly connected with a dispersion disc which is coaxially arranged with the gas pipe body; the dispersing disc corresponds to the buffering pipe on the left side, and the left end of the dispersing disc is arranged in an inwards-concave mode.

Description

TECHNICAL FIELD

[0001] The utility model relates to gas pipeline protection device technical field, especially a pipeline explosion -proof protection device for gas valve well. BACKGROUND

[0002] At present, in the conveying process of natural gas, natural gas pipeline is often used for conveying, because the whole natural gas pipe network scale is huge and is universally buried underground, it is difficult to popularize professional explosion -proof system to monitor and monitor, when the safety hidden danger occurs in the conveying process of natural gas, it cannot be made in time the countermeasures, especially in the conveying process of natural gas, in order to make natural gas flow smoothly into the house, gas valve well is arranged in many areas of residential area, if gas valve well has an accident, the consequence is unbearable to imagine. UTILITY MODEL CONTENTS

[0003] In view of the above situation, in order to overcome the defects of prior art, the utility model provides a pipeline explosion -proof protection device for gas valve well, and the technical scheme for solving the problem is that the gas pipe body is arranged along the transverse direction, characterized in that, the gas pipe body is integrally coaxially arranged with a pressure -sharing explosion -proof assembly and a speed -reducing explosion -proof assembly.

[0004] The pressure -sharing explosion -proof assembly includes two buffer tubes arranged along the transverse direction, the two buffer tubes are integrally coaxially arranged with the gas pipe body, the inner diameters of the two buffer tubes are greater than the inner diameter of the gas pipe body, and a plurality of buffer release pipes are uniformly distributed around the axial line and are fixedly connected to the opposite ends of the two buffer tubes.

[0005] The speed -reducing explosion -proof assembly includes two groups of buffer assemblies arranged in upper and lower correspondence about the axis of the gas pipe body, the left ends of each group of buffer assemblies are fixedly connected with the inlet end of the gas pipe body, and the right ends of the two groups of buffer assemblies are fixedly connected with a dispersion disc coaxially arranged with the gas pipe body, the dispersion disc corresponds to the buffer tube on the left side, and the left end of the dispersion disc is concave.

[0006] As preferred, each group of the buffer assembly comprises a support block fixedly connected with the inner wall of the inlet end of the gas pipe body, the support block is fixedly connected with a transversely arranged buffer cylinder, the right end of the buffer cylinder is integrally coaxially arranged with a shaft sleeve, the shaft sleeve is coaxially slidably connected with a buffer rod, the right end of the buffer rod is fixedly connected with a dispersion disc, the left end of the buffer rod is coaxially fixedly connected with a baffle disc, the baffle disc is located in the buffer cylinder, the left end of the baffle disc is coaxially fixedly connected with the right end of a spring, the left end of the spring is fixedly connected with the inner bottom surface of the buffer cylinder, the outer edge of the baffle disc is coaxially fixedly connected with a support ring which is slidably abutted with the inner wall of the buffer cylinder, the right side wall of the buffer cylinder is coaxially fixedly connected with a sealing ring which is slidably sleeved with the buffer rod, and the buffer cylinder is filled with a certain amount of lubricating liquid between the sealing ring and the baffle disc.

[0007] As preferred, the outer edge of the buffer rod, the inner wall of the shaft sleeve, the inner wall of the buffer cylinder and the outer wall of the support ring are coated with an explosion-proof coating.

[0008] The utility model discloses the beneficial effect is:

[0009] In the use, the speed -reducing explosion -proof assembly that is equipped can effectively reduce the flow rate of gas in the gas pipe body with the cooperation of buffer assembly and dispersion disc, the pressure -reducing explosion -proof assembly that is equipped can effectively reduce the pressure of gas in the gas pipeline, avoids the safety accident such as the leakage of gas pipe body due to the too fast gas flow rate or the too high pressure. The outer edge of the buffer rod, the inner wall of the shaft sleeve, the inner wall of the buffer cylinder and the outer wall of the support ring are coated with an explosion-proof coating, further reducing the security risk. BRIEF DESCRIPTION OF DRAWINGS

[0010] Figure 1 It is the full profile main view of the utility model.

[0011] Figure 2 It is the enlarged view of A area in the full profile main view of the utility model.

[0012] Figure 3 It is the first perspective partial solid sectional view of the utility model.

[0013] Figure 4 It is the second perspective solid sectional view of the utility model.

[0014] Figure 5 It is the third perspective view of the utility model.

[0015] REFERENCE NUMERALS

[0016] 1. gas pipe body, 2. pressure -reducing explosion -proof assembly, 3. speed -reducing explosion -proof assembly, 4. buffer pipe, 5. buffer pipe, 6. buffer assembly, 7. dispersion disc, 8. support block, 9. buffer cylinder, 10. shaft sleeve, 11. buffer rod, 12. baffle disc, 13. spring, 14. support ring, 15. sealing ring, 16. lubricating liquid. DETAILED DESCRIPTION

[0017] The specific embodiments of the present application are further described in detail. Figures 1-5 The specific embodiments of the present application are further described in detail.

[0018] In the embodiment one, the speed-reducing explosion-proof assembly 3 can effectively buffer the gas with too high flow rate, when the gas with too high flow rate flows through the dispersion disc 7 from the gas pipeline body, the dispersion disc 7 is in contact with the gas and then buffers and blocks the gas, effectively reducing the flow rate of the gas, the concave dispersion disc 7 can increase the contact area with the gas, ensuring the speed-reducing effect.

[0019] In the embodiment two, on the basis of the embodiment one, specifically, the gas flows from left to right in the gas pipeline body, in the use process of the present application, the speed-reducing explosion-proof assembly 3 can effectively buffer the gas with too high flow rate, when the gas with too high flow rate flows through the dispersion disc 7 from the gas pipeline body, the dispersion disc 7 is in contact with the gas and then buffers and blocks the gas, effectively reducing the flow rate of the gas, the concave dispersion disc 7 can increase the contact area with the gas, ensuring the speed-reducing effect.

[0020] In the embodiment three, on the basis of the embodiment two, the dispersion disc 7 is arranged in the left buffer pipe 4, when the gas contacts with the dispersion disc 7, the gas will be dispersed to the left buffer pipe 4 through the left end curved surface of the dispersion disc 7, the inner diameter of the buffer pipe 4 is larger than the inner diameter of the gas pipeline body 1, effectively increasing the dispersion area of the gas, and then reducing the pressure of the gas, the two buffer pipes 4 are communicated through the buffer release pipe 5, greatly increasing the flow area of the gas, effectively reducing the pressure of the gas.

[0021] In the embodiment four, on the basis of the embodiment two, the buffer cylinder 9 is installed at the inlet end of the gas pipeline body 1 through the support block 8, the sealing ring 15 is arranged in the shaft sleeve 10 to avoid the leakage of lubricating oil, the amount and type of the lubricating oil can be selected according to the actual situation, the lubricating oil can infiltrate the support ring 14 and the buffer rod 11, greatly reducing the friction between the support ring 14 and the buffer cylinder 9 and the friction between the buffer rod 11 and the shaft sleeve 10, avoiding the safety hazard caused by excessive friction.

Claims

1. A pipe explosion protection device for gas valve wells, comprising a gas pipe body (1) arranged transversely, characterized in that, The gas pipe body (1) is integrally coaxially arranged with a pressure division explosion-proof assembly (2) and a speed reduction explosion-proof assembly (3); The pressure division explosion-proof assembly (2) comprises two transversely spaced buffer pipes (4) which are integrally coaxially arranged with the gas pipe body (1) and have an inner diameter larger than that of the gas pipe body (1), and a plurality of buffer release pipes (5) are fixedly and communicatively arranged at the opposite ends of the two buffer pipes (4) and are uniformly distributed around the axis of the buffer pipes (4). The speed reduction explosion-proof assembly (3) comprises two sets of buffer assemblies (6) which are arranged in a top-to-bottom corresponding manner with respect to the axis of the gas pipe body (1), the left end of each set of buffer assemblies (6) is fixedly connected with the inlet end of the gas pipe body (1), and the right ends of the two sets of buffer assemblies (6) are fixedly connected with a dispersion disc (7) which is coaxially arranged with the gas pipe body (1), the dispersion disc (7) corresponds to the left buffer pipe (4), and the left end of the dispersion disc (7) is concave.

2. A pipe explosion protection device for gas valve shafts according to claim 1, characterized in that Each set of buffer assemblies (6) comprises a support block (8) fixedly connected with the inner wall of the inlet end of the gas pipe body (1), a buffer cylinder (9) transversely arranged fixedly connected with the support block (8), a shaft sleeve (10) integrally coaxially arranged at the right end of the buffer cylinder (9), a buffer rod (11) coaxially and slidingly connected with the shaft sleeve (10), the right end of the buffer rod (11) fixedly connected with the dispersion disc (7), a baffle disc (12) coaxially and fixedly connected with the left end of the buffer rod (11), the baffle disc (12) located in the buffer cylinder (9), the right end of the baffle disc (12) coaxially and fixedly connected with the right end of a spring (13), the left end of the spring (13) fixedly connected with the inner bottom surface of the buffer cylinder (9), a support ring (14) coaxially and fixedly connected with the outer edge of the baffle disc (12) and slidingly abutting against the inner wall of the buffer cylinder (9), a sealing ring (15) coaxially and fixedly connected with the right side wall of the buffer cylinder (9) and slidingly sleeved with the buffer rod (11), and a certain amount of lubricating liquid (16) filled between the sealing ring (15) and the baffle disc (12) in the buffer cylinder (9).

3. A pipe explosion protection device for gas valve shafts according to claim 2, characterized in that The buffer rod (11), the inner wall of the shaft sleeve (10), the inner wall of the buffer cylinder (9), and the outer wall of the support ring (14) are all coated with an explosion-proof coating.

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