CN212839700U - A assembly debugging device for leaking butterfly valve flange of early warning and monitoring - Google Patents
A assembly debugging device for leaking butterfly valve flange of early warning and monitoring Download PDFInfo
- Publication number
- CN212839700U CN212839700U CN202021110931.4U CN202021110931U CN212839700U CN 212839700 U CN212839700 U CN 212839700U CN 202021110931 U CN202021110931 U CN 202021110931U CN 212839700 U CN212839700 U CN 212839700U
- Authority
- CN
- China
- Prior art keywords
- hole
- leakage
- butterfly valve
- debugging device
- compressed air
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Active
Links
Images
Landscapes
- Examining Or Testing Airtightness (AREA)
- Indication Of The Valve Opening Or Closing Status (AREA)
Abstract
The utility model relates to a process equipment technical field, it discloses an assembly and debugging device for leaking butterfly valve flange of early warning and monitoring, including being used for the rotation operation adjusting screw's screwdriver, connection the air inlet on the leakage input hole is taken over, is connected the rubber end cap in leak detection step hole drill way, be provided with on the center axis of rubber end cap and be used for inserting the through hole of screwdriver, the air inlet is taken over and is connected with the compressed air pipeline through the hose, compressed air pipeline is last to be provided with air-vent valve and manometer. The utility model provides the high debugging precision and the sensitivity of the butterfly valve flange of leaking early warning and monitoring.
Description
Technical Field
The utility model relates to a process equipment technical field, concretely relates to assembly and debugging device of butterfly valve flange for leaking early warning and monitoring.
Background
The butterfly valve is a fluid switch control valve which is widely applied in industry, is used for being installed in a fluid pressure pipeline and mainly plays a role in cutting off and throttling. The flange of the installation and connection part of the butterfly valve and the pipeline is called a butterfly valve flange, and can be of an integral structure with the butterfly valve or an assembly structure with the butterfly valve. In the prior art, the butterfly valve flange mainly plays a role in connecting with a pipeline and realizes plane sealing of a connecting part.
In many industrial applications, high demands are placed on the use of butterfly valves. For example, in order to realize accurate control of fluid delivery, the opening and closing of the butterfly valve need to be strictly controlled, and the butterfly valve can be completely closed when the butterfly valve needs to be closed, otherwise, the quality of a product can be influenced by errors of fluid delivery amount; in a high-pressure, ultrahigh-pressure or extra-high-pressure pipeline system or a pipeline system for conveying dangerous fluid, the connection position of a butterfly valve and a pipeline is required to be free from leakage under long-time work, otherwise, danger can occur. The existing butterfly valve flange and butterfly valve do not consider to set up the interface of leakage early warning and monitoring, so the reliability is not high.
In order to solve the problem, the utility model discloses a be used to leak butterfly valve flange and butterfly valve of early warning and monitoring is disclosed for CN 207005310U's utility model patent to the grant bulletin number, be provided with the leak testing step hole on the excircle of butterfly valve flange, be provided with on the butterfly valve flange plane with the leak input hole that the leak testing step hole is linked together, the downthehole leakage pressure threshold value controlling means that is provided with of leak testing step just sends the early warning when leakage pressure surpasss safety threshold.
The leakage pressure threshold control device needs to adjust the safety threshold during assembly. However, since the leakage pressure threshold control device is located inside the leakage detection stepped hole, the pressure of the spring itself cannot be detected during adjustment, and the safety threshold of the leakage detection stepped hole can only be controlled by adjusting the depth of the screw entering the hole. However, since there is a certain manufacturing error in the manufacturing dimensions of the butterfly valve flange, the adjusting screw, and the spring, the magnitude of the elastic force of the spring itself, and the like, the leakage pressure threshold value control device debugged by the adjusting method has poor adjusting accuracy, and cannot be adapted to the application with high accuracy and high sensitivity.
SUMMERY OF THE UTILITY MODEL
In order to solve the problem, the utility model provides an assembly and debugging device for leaking the butterfly valve flange of early warning and monitoring aims at improving the debugging precision and the sensitivity of leaking the butterfly valve flange of early warning and monitoring. The specific technical scheme is as follows:
an assembly and debugging device of a butterfly valve flange for early warning and monitoring leakage is characterized in that a leakage detection step hole is formed in the excircle of the butterfly valve flange, a leakage input hole communicated with the leakage detection step hole is formed in the plane of the butterfly valve flange, a leakage pressure threshold control device is arranged in the leakage detection step hole and comprises an end face sealing valve core, a spring and an adjusting screw for adjusting the pressure of the spring, the end face sealing valve core, the spring and the adjusting screw are sequentially arranged in the leakage detection step hole, the adjusting screw is in threaded connection with the leakage detection step hole, and an axial overflowing through hole is formed in the adjusting screw; the assembling and debugging device comprises a screwdriver used for rotating and operating the adjusting screw, an air inlet connecting pipe connected to the leakage input hole, and a rubber plug connected to the orifice of the leakage detection stepped hole, wherein a through hole used for inserting the screwdriver is formed in the central axis of the rubber plug, the air inlet connecting pipe is connected with a compressed air pipeline through a hose, and an air regulating valve and a pressure gauge are arranged on the compressed air pipeline.
As a preferred scheme, in order to realize the rapid insertion of the air inlet connection pipe, the air inlet connection pipe is a rigid air inlet connection pipe, a layer of elastic rubber layer is arranged on the excircle of the rigid air inlet connection pipe, and the air inlet connection pipe is in interference fit with the leakage input hole through the elastic rubber layer.
Preferably, the rubber plug is in threaded fit with the leakage detection step hole.
Preferably, the screwdriver is in clearance fit with the through hole.
And when the screwdriver is assembled and debugged, a circle of soap liquid is coated at the connecting part of the screwdriver and the through hole.
The utility model discloses in, vacuum generator is connected to compressed air pipeline.
Or the compressed air pipeline is connected with a compressed air bottle.
Or the compressed air pipeline is connected with an air compressor.
The utility model discloses a use method as follows:
(1) installing a leakage pressure threshold control device inside a leakage detection step hole of a butterfly valve flange, and connecting a rubber plug with the leakage detection step hole after being sleeved on a screwdriver; rotating the screwdriver to enable the adjusting screw to compress the spring to the limit compression position as much as possible;
(2) adjusting the pressure on a compressed air pipeline, connecting an air inlet connecting pipe with a leakage input hole at the flange plane end of a butterfly valve, opening a stop valve on the air inlet connecting pipe after confirming that the pressure on the compressed air pipeline meets a set value, and allowing compressed air to enter the lower part of a leakage detection step hole;
(3) coating a circle of soap liquid on a connecting part of a through hole in the center of the screwdriver and the rubber plug, slowly rotating the screwdriver to enable the adjusting screw to gradually retreat, observing whether the soap liquid foams, when finding that the soap liquid just foams, indicating that the end face sealing valve core is just jacked open under the action of set compressed air, enabling the compressed air to act on the soap liquid along a gap between the screwdriver and the rubber plug through an axial overflowing through hole on the adjusting screw and enable the soap liquid to foam, immediately stopping rotating the screwdriver, and adjusting the leakage pressure threshold control device to be in place;
(4) and removing the assembling debugging device.
The utility model has the advantages that: the accurate debugging of the leakage pressure threshold control device is realized, and the debugging precision and the sensitivity of the butterfly valve flange for leakage early warning and monitoring are improved.
Drawings
Fig. 1 is a schematic structural diagram of an assembly debugging device for a butterfly valve flange for leakage early warning and monitoring of the present invention;
fig. 2 is a schematic structural diagram of a butterfly valve flange for leakage warning and monitoring.
In the figure: 1. the device comprises a butterfly valve flange, 2, a leakage detection step hole, 3, a leakage input hole, 4, a leakage pressure threshold control device, 5, an end face sealing valve core, 6, a spring, 7, an adjusting screw, 8, an axial overflowing through hole, 9, a screwdriver, 10, an air inlet connecting pipe, 11, a rubber plug, 12, a hose, 13, a compressed air pipeline, 14, a pressure regulating valve, 15, a pressure gauge, 16, an elastic rubber layer, 17, soap liquid, 18 and a stop valve.
Detailed Description
The following description will further describe embodiments of the present invention with reference to the accompanying drawings and examples. The following examples are only for illustrating the technical solutions of the present invention more clearly, and the protection scope of the present invention is not limited thereby.
Fig. 1 to 2 show an embodiment of an assembly and debugging device of a butterfly valve flange 1 for leakage early warning and monitoring of the present invention, a leakage detection step hole 2 is provided on an outer circle of the butterfly valve flange 1, a leakage input hole 3 communicated with the leakage detection step hole 2 is provided on a plane of the butterfly valve flange 1, a leakage pressure threshold control device 4 is provided in the leakage detection step hole 2, the leakage pressure threshold control device 4 includes an end face seal valve element 5, a spring 6 and an adjusting screw 7 for adjusting the pressure of the spring 6, which are sequentially provided in the leakage detection step hole 2, the adjusting screw 7 is in threaded connection with the leakage detection step hole 2, and an axial overcurrent through hole 8 is provided on the adjusting screw 7; the assembling and debugging device comprises a screwdriver 9 used for rotationally operating the adjusting screw 7, an air inlet connecting pipe 10 connected to the leakage input hole 3 and a rubber plug 11 connected to the hole opening of the leakage detection stepped hole 2, wherein a through hole used for inserting the screwdriver 9 is formed in the central axis of the rubber plug 11, the air inlet connecting pipe 10 is connected with a compressed air pipeline 13 through a hose 12, and a pressure regulating valve 14 and a pressure gauge 15 are arranged on the compressed air pipeline 13.
As a preferable scheme, in order to realize the quick insertion of the air inlet connection pipe 10, the air inlet connection pipe 10 is a rigid air inlet connection pipe, a layer of elastic rubber layer 16 is arranged on the outer circle of the rigid air inlet connection pipe, and the air inlet connection pipe 10 is in interference fit with the leakage input hole 3 through the elastic rubber layer 16.
Preferably, the rubber plug 11 is in threaded fit with the leakage detection stepped hole 2.
Preferably, the screwdriver 9 is clearance-fitted with the through hole.
When assembling and debugging, a circle of soap liquid 17 is coated at the connecting part of the screwdriver 9 and the through hole.
In this embodiment, the compressed air line 13 is connected to a vacuum generator.
Alternatively, the compressed air line 13 is connected to a compressed air bottle.
Or the compressed air pipeline is connected with an air compressor.
The method of use of this example is as follows:
(1) installing a leakage pressure threshold control device 4 into a leakage detection step hole 2 of a butterfly valve flange 1, and connecting a rubber plug 11 with the leakage detection step hole 2 after being sleeved on a screwdriver 9; rotating the screwdriver 9 to enable the adjusting screw 7 to press the spring 6 to the limit compression position as much as possible;
(2) the pressure on the compressed air pipeline 13 is adjusted, the air inlet connecting pipe 10 is connected with the leakage input hole 3 at the plane end of the butterfly valve flange 1, after the pressure on the compressed air pipeline 13 is confirmed to be in accordance with a set value, the stop valve 18 on the air inlet connecting pipe 10 is opened, and compressed air enters the lower part of the leakage detection step hole 2;
(3) coating a circle of soap liquid 17 on the connecting part of the through hole in the centers of the screwdriver 9 and the rubber plug 11, slowly rotating the screwdriver 9 to enable the adjusting screw 7 to gradually retreat, observing whether the soap liquid 17 foams, when finding that the soap liquid 17 just foams, indicating that the end face sealing valve core 5 is just jacked open under the action of set compressed air, enabling the compressed air to act on the soap liquid 17 along the gap between the screwdriver 9 and the rubber plug 11 through the axial overflowing through hole 8 on the adjusting screw 7 and enable the soap liquid 17 to foam, stopping rotating the screwdriver 9 immediately at the moment, and adjusting the leakage pressure threshold control device 4 to be in place;
(4) and removing the assembling debugging device.
The beneficial effect of this embodiment is: the accurate debugging of the leakage pressure threshold control device is realized, and the debugging precision and the sensitivity of the butterfly valve flange for leakage early warning and monitoring are improved.
The foregoing is only a preferred embodiment of the present invention, and it should be noted that, for those skilled in the art, a plurality of improvements and decorations can be made without departing from the technical principle of the present invention, and these improvements and decorations should also be regarded as the protection scope of the present invention.
Claims (8)
1. The assembly debugging device of the butterfly valve flange for early warning and monitoring leakage is characterized in that a leakage detection step hole is formed in the excircle of the butterfly valve flange, a leakage input hole communicated with the leakage detection step hole is formed in the plane of the butterfly valve flange, a leakage pressure threshold control device is arranged in the leakage detection step hole and comprises an end face sealing valve core, a spring and an adjusting screw for adjusting the pressure of the spring, the end face sealing valve core, the spring and the adjusting screw are sequentially arranged in the leakage detection step hole, the adjusting screw is in threaded connection with the leakage detection step hole, and an axial overflowing through hole is formed in the adjusting screw; the assembling and debugging device comprises a screwdriver used for rotating and operating the adjusting screw, an air inlet connecting pipe connected to the leakage input hole, and a rubber plug connected to the orifice of the leakage detection stepped hole, wherein a through hole used for inserting the screwdriver is formed in the central axis of the rubber plug, the air inlet connecting pipe is connected with a compressed air pipeline through a hose, and an air regulating valve and a pressure gauge are arranged on the compressed air pipeline.
2. The assembly debugging device of a butterfly valve flange for leakage early warning and monitoring according to claim 1, wherein the air inlet connection pipe is a rigid air inlet connection pipe, and an elastic rubber layer is arranged on an outer circle of the rigid air inlet connection pipe, and the air inlet connection pipe is in interference fit with the leakage input hole through the elastic rubber layer.
3. The assembly debugging device of a butterfly valve flange for leakage early warning and monitoring according to claim 1, wherein the rubber plug is in threaded fit with the leakage detection step hole.
4. The assembly debugging device of claim 1, wherein the screwdriver is in clearance fit with the through hole.
5. The assembly debugging device of claim 1, wherein a circle of soap solution is applied to the connection part between the screwdriver and the through hole during assembly debugging.
6. The assembly debugging device of claim 1, wherein a vacuum generator is connected to the compressed air line.
7. The assembly debugging device of a butterfly valve flange for leak warning and monitoring of claim 1, wherein the compressed air line is connected to a compressed air bottle.
8. The assembly debugging device of claim 1, wherein the compressed air pipeline is connected to an air compressor.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202021110931.4U CN212839700U (en) | 2020-06-16 | 2020-06-16 | A assembly debugging device for leaking butterfly valve flange of early warning and monitoring |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202021110931.4U CN212839700U (en) | 2020-06-16 | 2020-06-16 | A assembly debugging device for leaking butterfly valve flange of early warning and monitoring |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN212839700U true CN212839700U (en) | 2021-03-30 |
Family
ID=75172761
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202021110931.4U Active CN212839700U (en) | 2020-06-16 | 2020-06-16 | A assembly debugging device for leaking butterfly valve flange of early warning and monitoring |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN212839700U (en) |
-
2020
- 2020-06-16 CN CN202021110931.4U patent/CN212839700U/en active Active
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN212839700U (en) | A assembly debugging device for leaking butterfly valve flange of early warning and monitoring | |
| JPH0158398B2 (en) | ||
| CN210035087U (en) | Pipeline pressure measuring device | |
| CN203532410U (en) | Pressure measurement connector with exhaust function and hydraulic system | |
| CN214502875U (en) | Performance test system for valve production | |
| CN114589028B (en) | Spray gun | |
| CN114659732B (en) | Compression type rubber cylinder sealing performance test device | |
| CN204459240U (en) | A kind of instrument root valve | |
| CN208887861U (en) | A kind of device for detecting sealability suitable for solenoid valve gas valve | |
| CN2325603Y (en) | Valve for controlling pressure guage | |
| CN112360843A (en) | Oil return pressure control valve testing method | |
| US4471803A (en) | Flow limit shutoff valve | |
| CN217687697U (en) | Air-conditioning pipeline airtightness detection jig | |
| CN115183049B (en) | Valve head safety alarm | |
| CN111664361A (en) | Pipeline pressure measuring device and method | |
| CN219452959U (en) | Pressure-maintaining leak detection valve | |
| CN219549693U (en) | On-line detection pilot-operated safety valve | |
| CN220416304U (en) | Novel combination valve of ball valve and pressure reducing valve | |
| CN217519231U (en) | Pneumatic valve capable of being quickly inserted into outer air pipe | |
| CN219413641U (en) | Gas shut-off valve easy and convenient to operate | |
| CN219345874U (en) | Air bag plugging device for pressurized pipeline | |
| CN219714734U (en) | Safety valve on-site off-line checking device | |
| CN216449129U (en) | Pressure-resistant device for testing air tightness of tank body | |
| CN220622788U (en) | Pneumatic control valve suitable for positive and negative air tightness detection | |
| CN211398679U (en) | Low-pressure relief valve |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant |