Underground gas blow-off valve replacement equipment with gas

Abstract

The utility model discloses a device for replacing an underground gas blow-off valve with gas, which relates to the technical field of gas valve maintenance, solves the technical problems that the operation is too complicated and the blow-off valve is easy to leak in the prior art, comprises a screw rod, and is characterized in that a sleeve is sleeved outside the screw rod, one end of the screw rod is fixedly provided with a gas stop plug, and the other end of the screw rod is fixedly provided with a gas outlet. Through the combined design of the screw rod, the sleeve, the gas stopping plug and the conical head, the operation of replacing the blow-off valve is simpler and more convenient, the complexity in the operation process is reduced, the working efficiency is improved, the blow-off cost is saved, and the labor cost is saved; the device is reasonable in design, the problem that a blow-off valve is prone to leakage can be effectively solved, and therefore the leakage risk is reduced, and the safety of a fuel gas conveying system is guaranteed; and the equipment adopts a threaded connection mode, so that the connection is firm and firm and is not easy to loosen, and the stability and the safety of the equipment are improved.

Description

Technical Field

[0001] The utility model relates to the technical field of gas valve maintenance, in particular to a gas-carrying replacement device for an underground gas relief valve. Background Art

[0002] The utility model relates to a technical field in which a gas relief valve maintenance device is a tool for replacing a gas relief valve, which is designed for the possible leakage of a relief valve in a medium-pressure valve well. Its main function is to replace the gas relief valve conveniently and quickly to ensure the normal operation and safety of the valve well; the design of the relief valve replacement tool makes the replacement process more efficient, saving manpower and time costs; it can effectively reduce the safety risks of the maintenance process and ensure the safety of maintenance personnel when replacing the relief valve; by modifying the tool for replacing the valve with gas in the introduction pipe, the replacement process is smoother and more reliable, reducing the problems and leakage risks that may occur during maintenance; ensuring that the replaced gas relief valve can work normally and improving the overall efficiency and performance of the valve well; in general, the function and role of the gas relief valve maintenance device is to effectively solve the leakage problem of the gas relief valve, ensure the safe operation and normal function of the valve well, and ensure the stability and reliability of the gas transmission system. During the maintenance process, it is first necessary to close the other valve wells involved in the maintenance valve and perform the deflation and pressure reduction operation. Subsequently, the original vent valve is disassembled and the relief pipeline is temporarily blocked with a wooden plug, and the copper ball valve with gas is installed on the relief pipe after the preparation work is completed. However, it was found that there were still cracks and leaks in the bleed valves. In order to solve this problem, the tool for replacing the valve with air in the inlet pipe was modified with new materials. Finally, a gas replacement tool specially used for replacing the bleed valve in the medium-pressure valve well was successfully produced. The improvement of this tool will help improve maintenance efficiency, reduce leakage risks, and ensure the safe operation of the valve well and system stability.

[0003] The prior art has the technical problems of being too complicated to operate and the relief valve being prone to leakage. Summary of the invention

[0004] In view of the deficiencies of the prior art, the utility model provides an underground gas relief valve with gas replacement device, which solves the technical problems of the prior art that the operation is too complicated and the relief valve is prone to leakage.

[0005] To achieve the above objectives, the utility model is implemented through the following technical solutions: an underground gas release valve with gas replacement equipment, including a screw, a sleeve is installed outside the screw, a gas cut-off plug is fixedly installed at one end of the screw, and a cone head is fixedly installed at one end of the screw.

[0006] Preferably, both ends of the screw rod are provided with external threads, and a nut is threadedly connected on the screw rod and located at one end of the sleeve.

[0007] Preferably, an O-ring is installed between the screw and the sleeve.

[0008] Preferably, a threaded hole is provided in the air cut-off plug, the air cut-off plug is threadably connected to the outside of the screw rod, a gasket is provided between the air cut-off plug and the sleeve, and the gasket is sleeved outside the sleeve.

[0009] Preferably, a threaded hole is provided in the cone head, and the cone head is threadably connected to one end of the screw rod.

[0010] Beneficial Effects

[0011] The utility model provides an underground gas relief valve with gas replacement equipment. The utility model makes the operation of replacing the relief valve simpler and more convenient through the combined design of a screw, a sleeve, a gas cut-off plug and a cone head, reduces the complexity of the operation process, improves work efficiency, saves relief costs, and saves labor costs; the equipment is reasonably designed and can effectively solve the problem of easy leakage of the relief valve, thereby reducing the risk of leakage and ensuring the safety of the gas transmission system; the equipment adopts a threaded connection method, which can ensure that the connection is firmly fastened and not easy to loosen, thereby improving the stability and safety of the equipment; the equipment has a simple and practical structure, is suitable for underground gas relief valves of different specifications and models, and has good compatibility and versatility. BRIEF DESCRIPTION OF THE DRAWINGS

[0012] Figure 1 This is a schematic diagram of the main structure of an underground gas release valve with gas replacement equipment described in the utility model.

[0013] In the figure: 1. screw; 2. sleeve; 3. air shut-off plug; 4. cone head; 5. nut; 6. O-ring; 7. washer; DETAILED DESCRIPTION

[0014] In order to further explain the technical means and effects adopted by the present invention to achieve the predetermined purpose of the invention, the technical scheme in the embodiment of the present invention will be clearly and completely described below in conjunction with the drawings in the embodiment of the present invention. Obviously, the described embodiment is only a part of the embodiment of the present invention, rather than all the embodiments. The detailed description is as follows.

[0015] See also Figure 1 The utility model provides a technical solution: an underground gas relief valve with gas replacement equipment, including a screw 1, a sleeve 2 is sleeved on the outside of the screw 1, a gas cut-off plug 3 is fixedly installed at one end of the screw 1, and a cone head 4 is fixedly installed at one end of the screw 1.

[0016] The present embodiment is further configured such that both ends of the screw rod 1 are provided with external threads, and a nut 5 is threadedly connected to one end of the sleeve 2 on the screw rod 1 .

[0017] This embodiment is further configured such that an O-ring 6 is installed between the screw 1 and the sleeve 2 .

[0018] This embodiment is further configured such that a threaded hole is provided in the air cut-off plug 3 , the air cut-off plug 3 is threadedly connected to the outside of the screw rod 1 , a gasket 7 is provided between the air cut-off plug 3 and the sleeve, and the gasket 7 is sleeved on the outside of the sleeve 2 .

[0019] This embodiment is further configured such that a threaded hole is provided in the cone head 4 , and the cone head 4 is threadedly connected to one end of the screw rod 1 .

[0020] The detailed connection means are well known in the art; Figure 1 As shown, the specific usage of this underground gas relief valve with gas replacement equipment is as follows:

[0021] Install the "anti-blowout chain" fixing buckle under the release valve.

[0022] Screw the DN40*DN25 "jacket" thread onto the damaged relief valve.

[0023] Install the pressure testing valve onto the 40" jacket.

[0024] Check whether the pressure measuring valve is closed and whether all interface connections are intact.

[0025] Replacement operation:

[0026] Open the vent valve and use the pressing handle to press the "middle pipe" of the equipment down into the vent pipe.

[0027] Hang the "anti-outflow chain" on both ends of the push handle.

[0028] Hold the pressing handle and use a 19-socket ratchet wrench to tighten the "inner rod" screw.

[0029] Release the gas in the jacket, connect the pressure gauge, and make sure that the value does not show an upward trend, indicating that the gas is successfully cut off.

[0030] Remove the pressure gauge, loosen the inner rod screw, and take off the "jacket".

[0031] Insert the new valve and the "jacket" onto the "middle pipe" and tighten the new valve.

[0032] Close the pressure testing valve, hold the pressing handle, loosen the inner rod screw, pull out the "middle tube" to the highest position, and close the new valve.

[0033] Release the gas in the "jacket", remove the gas cut-off equipment, seal and check for leaks.

[0034] Clean up the site and complete the repair work.

[0035] It should be noted that, in this document, relational terms such as first and second, etc. are merely used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any actual relationship or order between these entities or operations.

[0036] The above description is only a preferred embodiment of the present invention and does not limit the present invention in any form. Although the present invention has been disclosed as a preferred embodiment as above, it is not used to limit the present invention. Any technical personnel in this field can make some changes or modify the technical contents disclosed above into equivalent embodiments without departing from the scope of the technical solution of the present invention. However, any brief modifications, equivalent changes and modifications made to the above embodiments based on the technical essence of the present invention without departing from the content of the technical solution of the present invention are still within the scope of the technical solution of the present invention.

Claims

1. An underground gas relief valve gas replacement device, comprising a screw (1), characterized in that: The screw rod (1) is sheathed with a sleeve (2), one end of the screw rod (1) is fixedly mounted with a gas cut-off plug (3), and one end of the screw rod (1) is fixedly mounted with a cone head (4).

2. The underground gas relief valve gas replacement device according to claim 1 is characterized in that The screw rod (1) has external threads at both ends, and a nut (5) is threadedly connected to one end of the sleeve (2) on the screw rod (1).

3. The underground gas relief valve gas replacement device according to claim 1 is characterized in that An O-ring (6) is installed between the screw (1) and the sleeve (2).

4. The underground gas relief valve gas replacement device according to claim 1 is characterized in that A threaded hole is provided in the air cut-off plug (3), and the air cut-off plug (3) is threadedly connected to the outside of the screw rod (1). A gasket (7) is provided between the air cut-off plug (3) and the sleeve, and the gasket (7) is sleeved on the outside of the sleeve (2).

5. The underground gas relief valve gas replacement device according to claim 1 is characterized in that A threaded hole is provided in the cone head (4), and the cone head (4) is threadedly connected to one end of the screw rod (1).

Images