CN207005310U - A kind of butterfly valve flange and butterfly valve that can be used for leakage early warning and monitoring - Google Patents
A kind of butterfly valve flange and butterfly valve that can be used for leakage early warning and monitoring Download PDFInfo
- Publication number
- CN207005310U CN207005310U CN201720764188.6U CN201720764188U CN207005310U CN 207005310 U CN207005310 U CN 207005310U CN 201720764188 U CN201720764188 U CN 201720764188U CN 207005310 U CN207005310 U CN 207005310U
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- China
- Prior art keywords
- butterfly valve
- flange
- early warning
- detection hole
- leakage
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- 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.)
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Abstract
It the utility model is related to flange technical field, more particularly to a kind of butterfly valve flange and butterfly valve that can be used for leakage early warning and monitoring, the butterfly valve flange includes flange body, two annular seal grooves are provided with the sealing plane of the flange body, leak detection annular groove is offered between two described annular seal grooves, leak detection hole is offered on the bottom of the leak detection annular groove and the cylindrical of flange body and both are mutually communicated, the aperture in the leak detection hole on the flange body is cylindrical is provided with the interface for being used for installing liquid leakage sensor.A kind of butterfly valve flange and butterfly valve that can be used for leakage early warning and monitoring of the present utility model, by setting two annular seal grooves and the leak detection annular groove between two annular seal grooves on the sealing plane of butterfly valve flange, the monitoring system of pipeline can be caused to find potential source of leaks in time, early warning is sent when sealing not yet entirely ineffective, improves the sealing reliability of whole pipe-line system.
Description
Technical field
It the utility model is related to flange technical field, and in particular to a kind of butterfly valve flange that can be used for leakage early warning and monitoring
And butterfly valve.
Background technology
Butterfly valve is a kind of industrially widely used fluid switch control valve, for installed in Fluid pressure pipeline
In, it is main to play cut-out and throttling action.The installation coupling part flange of butterfly valve and pipeline is referred to as butterfly valve flange, and it can be and butterfly
Valve it is into a single integrated structure or with butterfly valve into assembling structure.
In the prior art, the connection function with pipeline is mainly played in the effect of butterfly valve flange, and realizes the flat of junction
Face seals.
In many industrial applications, the use for butterfly valve proposes high requirement.For example, in order to realize that fluid conveys
Accurate control, it is necessary to strictly control butterfly valve switch, can be completely closed when needing butterfly valve to close, otherwise influence whether product
Quality；In the pipe-line system of high pressure, super-pressure or extra-high voltage or the pipe-line system of the dangerous fluid of conveying, it is desirable to butterfly valve with
The junction of pipeline can not leak in the case where working long hours, and otherwise can cause danger.Existing butterfly valve flange and butterfly valve by
In the interface for not accounting for setting leakage early warning and monitoring, therefore its reliability is not high.
Utility model content
In view of the above-mentioned problems, the utility model proposes it is a kind of can be used for leakage early warning and monitoring butterfly valve flange and butterfly valve,
So that butterfly valve it is lower in off position once occur manually it is more difficult discover chronic leak when, report can be sent in time by monitoring system
It is alert, early warning, specific technical side can be sent in advance by monitoring system when the junction of butterfly valve and pipeline not yet leaks
Case is as follows：
A kind of butterfly valve flange that can be used for leakage early warning and monitoring, including flange body, in the sealing of the flange body
Plane is provided with two annular seal grooves, and leak detection annular groove is offered between two described annular seal grooves, described
Leak detection hole is offered on the bottom of leak detection annular groove and the cylindrical of flange body and both are mutually communicated, described
The aperture in the leak detection hole on flange body is cylindrical is provided with the interface for being used for installing liquid leakage sensor.
In above-mentioned technical proposal, the end face seal of butterfly valve flange employs two annular seal grooves, when two ring packings
When interior annular groove in groove leaks because of the sealing strip failure in its interior annular groove, the liquid in pipeline enters two
In leak detection annular groove between bar annular seal groove, and the leak detection hole for the bottom for passing through leak detection annular groove, enter
Enter to flange body it is cylindrical in the leak detection hole that opens up, be installed in the liquid leakage sensor of the monitoring system in aperture
It is detected, so as to send early warning.Second sealing is played due to the end face of butterfly valve flange provided with outer ring seal groove to make
With, therefore the leakage of butterfly valve flange and pipeline junction will not be caused when monitoring system sends early warning, can really it play
Effect ground forewarning function, so as to there is time enough to be overhauled, prevent potential unexpected dangerous.
In view of if the pressure of leak is not very high, or being only very small after first of sealing leak
Leak pressure, then due to the presence of second sealing, actually small leak pressure will not typically cause second sealing to lose
Effect, when only leak pressure meets or exceeds certain value, second sealing is possible to fail.Meeting the premise of reliability
Under, a secure threshold can be set, early warning is just sent when leak pressure exceedes secure threshold.Such benefit is to prolong
The time between overhauls(TBO) of long pipeline system, increase economic efficiency.Therefore, leakage pressure threshold control is provided with the leak detection hole
Device processed.
Specifically, the flange body it is cylindrical on leak detection hole be stepped hole, it is described leakage pressure threshold control
Device is including sealed valve core, spring, tension adjusting screw, the step surface of stepped hole described in the preceding end in contact of the sealed valve core,
The rear end of the sealed valve core is sequentially arranged with the spring and tension adjusting screw.
In order to find chronic leak that butterfly valve occurs after closing in time, it may be considered that on the flange at butterfly valve both ends
Differential pressure pickup is set.Concrete scheme is：The flange body it is cylindrical on be additionally provided with the detection hole of fluid pressure, the liquid
The runner endoporus of the detection hole connection flange body of body pressure, is provided with the aperture of the detection hole of the fluid pressure and is used to install
The interface of liquid-pressure pick-up.
When butterfly valve chronic leak occurs after closing, certain pressure difference change, this practicality can be formed at the both ends of butterfly valve
A kind of new interface that can be used for the butterfly valve flange of leakage early warning and monitoring to be provided with liquid-pressure pick-up, therefore when installation
When the liquid-pressure pick-up of the monitoring system in aperture detects the pressure of liquid, pressure that monitoring system measures butterfly valve both ends
Power is compared, and can detect the change of pressure difference in real time, so as to judge whether there is chronic leak.
For the pipe-line system for conveying high temperature fluid, fluid is in the case of continuous conveying in its butterfly valve both ends runner
Fluid temperature (F.T.) is typically identical, and the temperature of its fluid outlet is gradually reduced under butterfly valve closed mode, and
From the Wen Duxiajiang curves under chronic leak state it is different under butterfly valve completely closed state.Therefore detection can also be passed through
The temperature change of butterfly valve both ends fluid judges to whether there is chronic leak under butterfly valve closed mode.Therefore, it is of the present utility model
A kind of butterfly valve flange that can be used for leakage early warning and monitoring, the flange body it is cylindrical on be additionally provided with the detection of fluid temperature
Hole, the runner endoporus of the detection hole connection flange body of the fluid temperature, sets in the aperture of the detection hole of the fluid temperature
There is the interface for installing fluid temperature sensor.
It is that described butterfly valve flange is equipped with the import and export end of its butterfly valve using the butterfly valve of above-mentioned butterfly valve flange arrangement.
The beneficial effects of the utility model are：
First, a kind of butterfly valve flange that can be used for leakage early warning and monitoring of the present utility model, pass through the close of butterfly valve flange
Seal and two annular seal grooves and the leak detection annular groove between two annular seal grooves are set in plane, can to manage
The monitoring system in road finds potential source of leaks in time, sends early warning when sealing not yet entirely ineffective, improves whole pipeline
The sealing reliability of system.
Second, a kind of butterfly valve flange that can be used for leakage early warning and monitoring of the present utility model, employ leakage pressure threshold
It is worth control device, so as on the premise of sealing reliability is ensured, extend the time between overhauls(TBO) of pipe-line system, improves economic effect
Benefit.
3rd, pressure differential detection interface and temperature difference detection interface are provided with the both ends butterfly valve flange of butterfly valve, so as to
Enable pipeline monitoring system according to obtained pressure difference data and difference number it is judged that go out whether butterfly valve chronic leak occurs,
So as to improve the reliability of pipe-line system.
Brief description of the drawings
Fig. 1 is of the present utility model a kind of available for leakage early warning and the butterfly valve flange of monitoring and the structural representation of butterfly valve
Figure；
Fig. 2 is the structural representation of butterfly valve flange；
Fig. 3 is Fig. 2 left view (revealing pressure threshold control device in figure not represent)；
Fig. 4 is the partial enlarged drawing in Fig. 2.
In figure：100th, butterfly valve flange, 101, flange body, 102, the sealing plane of flange body, 103, outer ring sealing
Groove, 104, annular seal groove, 105, leak detection annular groove, 106, the leak detection hole of the bottom of leak detection annular groove,
107th, flange body it is cylindrical on the leak detection hole that opens up, 108, the interface of liquid leakage sensor, 109, fluid pressure
Detection hole, 110, the runner endoporus of flange body, 111, the interface of liquid-pressure pick-up, 112, the detection hole of fluid temperature,
113rd, the interface of fluid temperature sensor, 114, step surface, 115, bolt hole；
200th, pressure threshold control device is revealed, 201, sealed valve core, 202, spring, 203, tension adjusting screw.
In figure：300th, butterfly valve；
In figure：A, B is that liquid enters outgoing direction in runner.
Embodiment
With reference to the accompanying drawings and examples, specific embodiment of the present utility model is further described.Implement below
Example is only used for clearly illustrating the technical solution of the utility model, and can not limit protection model of the present utility model with this
Enclose.
Embodiment 1：
If Fig. 1 to 4 is a kind of embodiment for the butterfly valve flange that can be used for leakage early warning and monitoring, including flange body 101,
Two annular seal grooves are provided with the sealing plane 102 of the flange body, it is respectively outer ring seal groove 103 and inner ring
Shape seal groove 104, leak detection annular groove 105, the leakage are offered between described two annular seal grooves 103,104
Detection annular groove 105 bottom offer leak detection hole 106, flange body it is cylindrical on offer leak detection hole 107,
And two detection holes 106,107 are mutually communicated, the aperture in the leak detection hole 107 on the flange body is cylindrical, which is provided with, to be used for
The interface 108 of liquid leakage sensor is installed.
In the present embodiment, leakage pressure threshold control device 200 is provided with the leak detection hole 106.
Specifically, the flange body it is cylindrical on leak detection hole 106 be stepped hole, it is described leakage pressure threshold control
Device 200 processed includes sealed valve core 201, spring 202, tension adjusting screw 203, the preceding end in contact institute of the sealed valve core 201
The step surface 114 of stepped hole is stated, the rear end of the sealed valve core 201 is sequentially arranged with the spring 202 and tension adjusting screw
203。
In the present embodiment, the flange body 101 it is cylindrical on be additionally provided with the detection hole 109 of fluid pressure, the liquid
The detection hole 109 of body pressure connects the runner endoporus 110 of flange body, is set in the aperture of the detection hole 109 of the fluid pressure
There is the interface 111 for installing liquid-pressure pick-up.
In the present embodiment, the flange body 101 it is cylindrical on be additionally provided with the detection hole 112 of fluid temperature, the liquid
The detection hole 112 of temperature connects the runner endoporus 110 of flange body, is set in the aperture of the detection hole 112 of the fluid temperature
There is the interface 113 for installing fluid temperature sensor.
In the present embodiment, the interface 108 of liquid leakage sensor, the interface 111 of liquid-pressure pick-up, fluid temperature pass
The interface 113 of sensor is internal thread interface, and bolt hole 115 is the bolt mounting holes for connecting pipe and butterfly valve flange.
Embodiment 2：
It is as shown in Figure 1 a kind of embodiment for the butterfly valve that can be used for leakage early warning and monitoring, butterfly valve both ends (the entering of butterfly valve,
The port of export) butterfly valve flange employ butterfly valve flange 100 shown in embodiment 1.
Described above is only preferred embodiment of the present utility model, it is noted that for the common skill of the art
For art personnel, on the premise of the utility model technical principle is not departed from, some improvements and modifications can also be made, these change
Enter and retouch and also should be regarded as the scope of protection of the utility model.
Claims (7)
1. a kind of butterfly valve flange that can be used for leakage early warning and monitoring, including flange body, it is characterised in that in the flange sheet
The sealing plane of body is provided with two annular seal grooves, and leak detection annular is offered between two described annular seal grooves
Leak detection hole is offered on groove, the bottom of the leak detection annular groove and the cylindrical of flange body and both mutually pass through
Logical, the aperture in the leak detection hole on the flange body is cylindrical is provided with the interface for being used for installing liquid leakage sensor.
2. a kind of butterfly valve flange that can be used for leakage early warning and monitoring according to claim 1, it is characterized in that：In the method
Blue body it is cylindrical on be additionally provided with the detection hole of fluid pressure, in the runner of the detection hole connection flange body of the fluid pressure
Hole, the interface for being used for installing liquid-pressure pick-up is provided with the aperture of the detection hole of the fluid pressure.
3. a kind of butterfly valve flange that can be used for leakage early warning and monitoring according to claim 1, it is characterized in that：In the method
Blue body it is cylindrical on be additionally provided with the detection hole of fluid temperature, in the runner of the detection hole connection flange body of the fluid temperature
Hole, the interface for being used for installing fluid temperature sensor is provided with the aperture of the detection hole of the fluid temperature.
4. a kind of butterfly valve flange that can be used for leakage early warning and monitoring according to claim 1, it is characterized in that：Let out described
Leakage pressure threshold control device is provided with dew detection hole.
5. a kind of butterfly valve flange that can be used for leakage early warning and monitoring according to claim 4, it is characterized in that：The flange
Leak detection hole on body is cylindrical is stepped hole, and the leakage pressure threshold control device includes sealed valve core, spring, pressure
Adjusting screw, the step surface of stepped hole, the rear end of the sealed valve core are sequentially arranged with described in the preceding end in contact of the sealed valve core
The spring and tension adjusting screw.
6. a kind of butterfly valve that can be used for leakage early warning and monitoring, it is characterized in that：The butterfly valve flange, the butterfly are provided with butterfly valve
Valve flange is the butterfly valve flange any one of claim 1 to 5.
7. a kind of butterfly valve that can be used for leakage early warning and monitoring according to claim 6, it is characterized in that：The butterfly valve
Import and export end is equipped with described butterfly valve flange.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720764188.6U CN207005310U (en) | 2017-06-28 | 2017-06-28 | A kind of butterfly valve flange and butterfly valve that can be used for leakage early warning and monitoring |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720764188.6U CN207005310U (en) | 2017-06-28 | 2017-06-28 | A kind of butterfly valve flange and butterfly valve that can be used for leakage early warning and monitoring |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN207005310U true CN207005310U (en) | 2018-02-13 |
Family
ID=61449089
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201720764188.6U Expired - Fee Related CN207005310U (en) | 2017-06-28 | 2017-06-28 | A kind of butterfly valve flange and butterfly valve that can be used for leakage early warning and monitoring |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN207005310U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111220773A (en) * | 2019-12-04 | 2020-06-02 | 刘忠辉 | Factory toxic gas monitoring device |
| CN113028130A (en) * | 2021-05-25 | 2021-06-25 | 山东辛丁技术有限公司 | Anti-theft valve |
-
2017
- 2017-06-28 CN CN201720764188.6U patent/CN207005310U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111220773A (en) * | 2019-12-04 | 2020-06-02 | 刘忠辉 | Factory toxic gas monitoring device |
| CN113028130A (en) * | 2021-05-25 | 2021-06-25 | 山东辛丁技术有限公司 | Anti-theft valve |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20180213 Termination date: 20200628 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |