Pneumatic explosion-proof stop valve capable of detecting gas flow

Abstract

The utility model relates to the technical field of stop valves, and discloses a pneumatic explosion-proof stop valve capable of detecting gas flow. The pneumatic explosion-proof stop valve capable of detecting the gas flow comprises a valve seat, valve pipes are fixedly connected to the two sides of the valve seat, conveying pipes are movably connected to the outer sides of the valve pipes, a mounting pipe is fixedly connected to the upper portion of each conveying pipe, a flow meter is fixedly connected to the upper portion of each mounting pipe, and an outer sealing ring is fixedly connected to the outer side of each mounting pipe; an inner sealing ring is fixedly connected to the lower portion of the outer surface of the mounting pipe, a detection probe is installed at one end of the mounting pipe in a penetrating mode, the upper end of the detection probe is fixedly connected to the lower portion of the flow meter, and one end of the mounting pipe is fixedly connected to the inner wall of the conveying pipe. The pneumatic explosion-proof stop valve is used through gas flow detection, the use functionality of the stop valve is conveniently increased, meanwhile, a worker can conveniently know whether gas flows in the stop valve structure or not for work, and the work and use efficiency of the pneumatic explosion-proof stop valve is conveniently improved.

Description

Technical Field

[0001] The utility model relates to the technical field of pneumatic flameproof cut-off valves, in particular to a pneumatic flameproof cut-off valve capable of detecting gas flow. Background Art

[0002] Pneumatic shut-off valve, also known as pneumatic stop valve, is a kind of actuator in the automation system. It is composed of a multi-spring pneumatic diaphragm actuator or a floating piston actuator and a regulating valve. It receives the signal of the regulating instrument and controls the shut-off, connection or switching of the fluid in the process pipeline. It has the characteristics of simple structure, sensitive response and reliable operation. The air source of the pneumatic explosion-proof shut-off valve requires filtered compressed air, and the medium flowing through the valve body should be liquid and gas without impurities and particles.

[0003] The existing Chinese utility model patent with reference announcement number CN219866513U discloses a cut-off valve. The utility model presses the extrusion part to make the two sets of clamping arms swing relative to each other, inserts the clamping arms into the flow channel of the valve body, and makes the shielding part abut against the flow channel port of the valve body, then releases the extrusion part, so that the two sets of clamping arms swing to abut against the inner wall of the flow channel in the valve body through the elastic force formed by the extrusion, thereby realizing the clamping connection between the dust cover and the valve body. The existing dust cover is designed according to the connection method of the valve body. For example, when the two ends of the valve body are connected to the pipeline by threads, the dust cover adopts a threaded type that is threadedly connected to the valve body. In the utility model, the dust cover and the valve body are clamped and connected by the clamping arms, which can make the dust cover more universal and applicable to different connection methods of the valve body in the utility model, thereby expanding the application range of the dust cover.

[0004] During the operation of the existing shut-off valve, the valve core and the valve seat are used in conjunction to achieve the operation of flowing gas from one end to the other end. However, during the flow of the gas flow meter, it is not convenient to use gas detection, resulting in reduced functionality of the shut-off valve. At the same time, it is impossible to know whether the gas flows from the valve body, and it is not conducive to monitoring the flowing gas flow data, thereby reducing the working efficiency of the pneumatic explosion-proof shut-off valve. Utility Model Content

[0005] 1. Technical issues to be solved

[0006] In view of the deficiencies in the prior art, the utility model provides a pneumatic flameproof cut-off valve capable of detecting gas flow, which has the advantages of being convenient for detecting gas flow of the pneumatic flameproof cut-off valve and solves the above-mentioned technical problems.

[0007] (II) Technical solution

[0008] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: the pneumatic explosion-proof shut-off valve capable of detecting gas flow comprises a valve seat for use with an integral shut-off valve, both sides of the valve seat are fixedly connected with valve tubes for connecting with a gas flow detection structure, the outer side of the valve tube is movably connected with a delivery pipe, the upper part of the delivery pipe is fixedly connected with a mounting tube for installing a detection probe structure, the upper part of the mounting tube is fixedly connected with a flow meter for gas flow detection, the outer side of the mounting tube is fixedly connected with an outer sealing ring for sealing, the lower part of the outer surface of the mounting tube is fixedly connected with an inner sealing ring for further increasing the sealing, one end of the mounting tube is penetrated and installed with a detection probe, the upper end of the detection probe is fixedly connected to the lower part of the flow meter, one end of the mounting tube is fixedly connected to the inner wall of the delivery pipe, and the detection probe is fixedly installed above the inner wall of the delivery pipe.

[0009] As a preferred technical solution of the utility model, a valve body is fixedly installed above the valve seat, and a valve stem is movably connected to the top of the valve body; one end of the valve stem is connected to the inside of the valve seat with a valve core for cooperative use.

[0010] As the preferred technical solution of the utility model, a sealing sleeve is movably connected to the outside of the delivery pipe, a connecting sleeve is fixedly connected to one side of the sealing sleeve, and a connecting block is fixedly connected to the inner wall of the connecting sleeve; the sealing sleeve is movably connected to the outside of the valve pipe for use.

[0011] As a preferred technical solution of the utility model, one side of the connection block is movably connected with a mounting screw, and the mounting screw is movably connected to the outer sides of both ends of the conveying pipe; the mounting screw fixes the connection block on one side for installation and use.

[0012] As a preferred technical solution of the utility model, a mounting sleeve is movably connected to the outside of the mounting tube, a mounting block is fixedly connected to one side of the mounting sleeve, and a welding block is fixedly connected to the other side of the mounting sleeve; the mounting sleeve is provided with two connections to the outside of the mounting tube for cooperative use.

[0013] As the preferred technical solution of the utility model, a vertical block is fixedly connected to the outer side of the welding block, a support rod is fixedly connected to one side of the vertical block, and a base plate is fixedly connected to the outer side of the support rod; the base plate is used to facilitate the staff to record the gas flow detection.

[0014] As a preferred technical solution of the utility model, the bottom plate platform is movably connected to one side of the valve body, and the vertical block is movably installed above the delivery pipe; the bottom plate platform is correspondingly installed on one side of the valve body for coordinated use.

[0015] Compared with the prior art, the utility model provides a pneumatic explosion-proof cut-off valve capable of detecting gas flow, which has the following beneficial effects:

[0016] 1. The utility model is connected to the valve pipe through both sides of the valve seat, the outer side of the valve pipe is used to connect with the delivery pipe, the delivery pipe is used with a mounting pipe on the top, the mounting pipe is connected with the flow meter on the top, and the flow meter connects the detection probe through the mounting pipe to the top of the inner wall of the delivery pipe. However, during the operation of the pneumatic flameproof cut-off valve, the delivery pipes at both ends cooperate with the valve seat to flow the gas, and the detection probe is used to detect the gas flow during the flow process, which is convenient for increasing the functionality of the cut-off valve. At the same time, it is also convenient for the staff to know whether the gas flow is flowing from the cut-off valve structure, which is convenient for improving the working efficiency of the pneumatic flameproof cut-off valve.

[0017] 2. The utility model installs an outer sealing ring and an inner sealing ring on the outer side of the mounting pipe, so that the outer sealing ring is connected to the outside of the mounting pipe and the inner sealing ring is connected to the top of the inner wall of the mounting pipe, which is convenient for increasing the connection and matching between the mounting pipe and the conveying pipe, increasing the accuracy of flow gas detection, and at the same time improving the practicality of the coordination between the pneumatic explosion-proof shut-off valve structure that can detect gas flow. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 It is an overall schematic diagram of the utility model;

[0019] Figure 2 This is a schematic diagram of the installation pipe of the utility model;

[0020] Figure 3 This is a schematic diagram of the flow meter of the utility model;

[0021] Figure 4 This is a schematic diagram of the sealing sleeve of the utility model;

[0022] Figure 5 This is a schematic diagram of the installation sleeve of the utility model.

[0023] Among them: 1. Valve seat; 11. Valve pipe; 12. Valve body; 13. Valve stem; 2. Mounting pipe; 21. Flow meter; 22. Outer sealing ring; 23. Inner sealing ring; 24. Detection probe; 25. Delivery pipe; 26. Sealing sleeve; 27. Connecting sleeve; 28. Connecting block; 29. ​​Mounting screw; 3. Mounting sleeve; 31. Mounting block; 32. Welding block; 33. Vertical block; 34. Support rod; 35. Bottom plate. DETAILED DESCRIPTION

[0024] The following is a further detailed description of the implementation of the present utility model in conjunction with the accompanying drawings and examples. The following examples are used to illustrate the present utility model, but cannot be used to limit the scope of the present utility model.

[0025] In the description of the present invention, unless otherwise specified, "multiple" means two or more than two; the terms "upper", "lower", "left", "right", "inner", "outer", "front end", "rear end", "head", "tail", etc. indicate the orientation or position relationship based on the orientation or position relationship shown in the drawings, which is only for the convenience of describing the present invention 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 operate in a specific orientation, and therefore cannot be understood as a limitation on the present invention. In addition, the terms "first", "second", "third", etc. are only used for descriptive purposes and cannot be understood as indicating or implying relative importance.

[0026] In the description of the present invention, it should be noted that, unless otherwise clearly specified and limited, the terms "connected" and "connection" 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 an indirect connection through an intermediate medium. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0027] Combined with Figure 1-5 In this embodiment, the pneumatic explosion-proof shut-off valve capable of detecting gas flow comprises a valve seat 1, valve tubes 11 are fixedly connected to both sides of the valve seat 1, a delivery tube 25 is movably connected to the outer side of the valve tube 11, a mounting tube 2 is fixedly connected to the top of the delivery tube 25, a flow meter 21 is fixedly connected to the top of the mounting tube 2, an outer sealing ring 22 is fixedly connected to the outer side of the mounting tube 2, an inner sealing ring 23 is fixedly connected to the lower part of the outer surface of the mounting tube 2, a detection probe 24 is installed through one end of the mounting tube 2, an upper end of the detection probe 24 is fixedly connected to the lower part of the flow meter 21, one end of the mounting tube 2 is fixedly connected to the inner wall of the delivery tube 25, and the detection probe 24 is fixedly installed above the inner wall of the delivery tube 25.

[0028] Specifically, by installing the delivery pipe 25 on the outside of the valve pipe 11, and the valve pipe 11 is installed on both sides of the valve seat 1 for use, it is convenient to install the delivery pipe 25 on both sides of the pneumatic flameproof shut-off valve for use, and the outer sides of the two ends of the delivery pipe 25 are installed with screws and the outer side of the valve pipe 11. The delivery pipe 25 is used with the mounting pipe 2, and the mounting pipe 2 is used with a flow meter 21 on the top. The flow meter 21 is used to detect the gas flow of the shut-off valve, thereby increasing the practical functionality of the pneumatic flameproof shut-off valve, facilitating the detection of the gas flow of the pneumatic flameproof shut-off valve, and increasing practicality. The outer side of the mounting pipe 2 is fixedly connected to the outer sealing ring 22 and the inner sealing ring 23, and the inner sealing ring 23 is used to be connected to the inner wall of the delivery pipe 25, and the outer sealing ring 22 is connected to the outer side of the delivery pipe 25, so that the mounting pipe 2 runs through the structure of the delivery pipe 25 for use. The sealing performance is increased, the accuracy of gas flow detection is increased, and the practicality of gas flow detection of the pneumatic flameproof shut-off valve is further increased.

[0029] A valve body 12 is fixedly mounted above the valve seat 1 , and a valve stem 13 is movably connected and penetrated above the valve body 12 .

[0030] A sealing sleeve 26 is movably connected to the outer side of the delivery pipe 25 , a connecting sleeve 27 is fixedly connected to one side of the sealing sleeve 26 , and a connecting block 28 is fixedly connected to the inner wall of the connecting sleeve 27 .

[0031] A mounting screw 29 is movably connected through one side of the connecting block 28 , and the mounting screw 29 is movably connected to the outer sides of both ends of the conveying pipe 25 .

[0032] Specifically, the outer side of the delivery pipe 25 and the sealing sleeve 26 are movably connected, the sealing sleeve 26 is used with the connecting sleeve 27, the inner wall of the connecting sleeve 27 is fixedly connected to the connecting block 28, and the connecting block 28 is fixed to both sides of the delivery pipe 25 with mounting screws 29, so as to increase the sealing performance of the connection between the delivery pipe 25 and the pneumatic explosion-proof shut-off valve, increase the gas flow use of the pneumatic explosion-proof shut-off valve, and conveniently increase the practicality of the connection between the structures.

[0033] The outer side of the mounting tube 2 is movably connected with a mounting sleeve 3 , one side of the mounting sleeve 3 is fixedly connected with a mounting block 31 , and the other side of the mounting sleeve 3 is fixedly connected with a welding block 32 .

[0034] A vertical block 33 is fixedly connected to the outer side of the welding block 32 , a support rod 34 is fixedly connected to one side of the vertical block 33 , and a bottom plate platform 35 is fixedly connected to the outer side of the support rod 34 .

[0035] The bottom plate 35 is movably connected to one side of the valve body 12 , and the vertical block 33 is movably installed above the delivery pipe 25 .

[0036] Specifically, the outer side of the mounting tube 2 is connected to the mounting sleeve 3, one side of the mounting sleeve 3 is fixedly connected to the mounting block 31, and the mounting block 31 is fixed using the mounting screws 29, so that the mounting sleeve 3 is fixed to the outer side of the mounting tube 2 for use. The other side of the mounting block 31 is used with a welding block 32, and the outer side of the welding block 32 is fixedly connected to the vertical block 33. The vertical block 33 is connected to one side of the structure with a support rod 34 for use, and one side of the support rod 34 is fixedly connected to the base plate 35. The base plate 35 is used to place the staff's record book and other settings, which is convenient for recording and operating the gas flow detection data of the pneumatic explosion-proof shut-off valve, thereby further increasing the functionality of the pneumatic explosion-proof shut-off valve.

[0037] Working principle: First, use screws to penetrate the two sides of the delivery pipe 25 and connect them to the outside of the valve pipe 11. The valve pipe 11 is installed on both sides of the valve seat 1, which is convenient for connecting the delivery pipe 25 to the two sides of the valve seat 1 for use. Then, a sealing sleeve 26 is used on the outside of the delivery pipe 25. The sealing sleeve 26 is correspondingly connected to the outside of the valve pipe 11 and the delivery pipe 25 to increase the sealing of the connection between the valve pipe 11 and the delivery pipe 25. The installation pipe 2 is penetrated and connected to the top of the outside of the delivery pipe 25. The installation pipe 2 is used with a DN100 magnetic flowmeter 21 on the top of the installation pipe 2. The flowmeter 21 detection probe 24 is penetrated through the installation pipe 2. At the bottom, the detection probe 24 is connected to the inner wall of the delivery pipe 25 for cooperation. When the pneumatic explosion-proof shut-off valve is opened for use, the valve stem 13 moves with the valve core below to move on the inner wall of the valve seat 1, so that the valve core is pushed upward, which is convenient for the gas to flow out from one end of the valve tube 11. Then, during the flow process, the staff turns on the flow meter 21, and the flow meter 21 detects the gas through the detection probe 24. The detection value is displayed on one side of the flow meter 21, so that the staff can record the gas flow detection value, which is convenient for increasing the use effect of the pneumatic explosion-proof shut-off valve.

[0038] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A pneumatic flameproof cut-off valve capable of detecting gas flow, the pneumatic flameproof cut-off valve capable of detecting gas flow comprising a valve seat (1), both sides of the valve seat (1) being fixedly connected with valve pipes (11), characterized in that: The outer side of the valve tube (11) is movably connected to a delivery tube (25), the upper side of the delivery tube (25) is fixedly connected to a mounting tube (2), the upper side of the mounting tube (2) is fixedly connected to a flow meter (21), the outer side of the mounting tube (2) is fixedly connected to an outer sealing ring (22), the lower side of the outer surface of the mounting tube (2) is fixedly connected to an inner sealing ring (23), one end of the mounting tube (2) is penetrated and installed with a detection probe (24), the upper end of the detection probe (24) is fixedly connected to the lower side of the flow meter (21), one end of the mounting tube (2) is fixedly connected to the inner wall of the delivery tube (25), and the detection probe (24) is fixedly installed above the inner wall of the delivery tube (25).

2. A pneumatic explosion-proof cut-off valve capable of detecting gas flow according to claim 1, characterized in that: A valve body (12) is fixedly mounted above the valve seat (1), and a valve stem (13) is movably connected and penetrated above the valve body (12).

3. A pneumatic explosion-proof cut-off valve capable of detecting gas flow according to claim 1, characterized in that: A sealing sleeve (26) is movably connected to the outer side of the delivery pipe (25), a connecting sleeve (27) is fixedly connected to one side of the sealing sleeve (26), and a connecting block (28) is fixedly connected to the inner wall of the connecting sleeve (27).

4. A pneumatic explosion-proof cut-off valve capable of detecting gas flow according to claim 3, characterized in that: A mounting screw (29) is movably connected through one side of the connection block (28), and the mounting screw (29) is movably connected to the outer sides of both ends of the delivery pipe (25).

5. The pneumatic explosion-proof cut-off valve capable of detecting gas flow according to claim 1, characterized in that: The outer side of the mounting tube (2) is movably connected to a mounting sleeve (3), one side of the mounting sleeve (3) is fixedly connected to a mounting block (31), and the other side of the mounting sleeve (3) is fixedly connected to a welding block (32).

6. A pneumatic explosion-proof cut-off valve capable of detecting gas flow according to claim 5, characterized in that: The outer side of the welding block (32) is fixedly connected to a vertical block (33), one side of the vertical block (33) is fixedly connected to a support rod (34), and the outer side of the support rod (34) is fixedly connected to a bottom plate platform (35).

7. A pneumatic explosion-proof cut-off valve capable of detecting gas flow according to claim 6, characterized in that: The bottom plate platform (35) is movably connected to one side of the valve body (12), and the vertical block (33) is movably installed above the delivery pipe (25).

Images