CN207378507U - A kind of natural gas line conveys gas leak detection device - Google Patents
A kind of natural gas line conveys gas leak detection device Download PDFInfo
- Publication number
- CN207378507U CN207378507U CN201721498952.6U CN201721498952U CN207378507U CN 207378507 U CN207378507 U CN 207378507U CN 201721498952 U CN201721498952 U CN 201721498952U CN 207378507 U CN207378507 U CN 207378507U
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- CN
- China
- Prior art keywords
- push rod
- appendix
- branch pipe
- sliding block
- plug
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Abstract
The utility model discloses a kind of natural gas lines to convey gas leak detection device,Including appendix and controller,Alarm is provided in controller,Several pressure detection mechanisms are provided on appendix,Pressure detection mechanism includes the branch pipe connected with appendix being arranged on appendix lateral wall,It can slide up and down in branch pipe and be provided with sliding block,The lower end of sliding block is equipped with sealing-plug,Annular convex platform is provided on the madial wall of branch pipe lower end,The threaded upper ends of branch pipe are connected with end cap,It can slide up and down in end cap and be equipped with push rod,The lower end of push rod and the threaded upper ends of sliding block connect,The upper end of push rod is stretched out in outside end cap,Push rod outer cover between end cap and sliding block is equipped with spring,Sleeve is fixed with branch pipe,Displacement sensor is fixed on the inner top of sleeve,The piston rod of displacement sensor and the upper end of push rod offset,Displacement sensor is electrically connected with the controller；The utility model can effectively avoid appendix from the phenomenon that fire or explosion occur.
Description
Technical field
The utility model belongs to detection device technology field, is related to a kind of natural gas line conveying gas leak detection device.
Background technology
It is needed during natural gas transportation by pipeline, and during by pipeline natural gas, often it is present with
The phenomenon that pipeline gas leakage, so, not only results in the waste of resource, but also can cause fire and explosion accident, exists
Very big security risk；In order to find the gas leak phenomenon of pipeline in time, it is essentially relying at present on pipeline and sensor is installed,
And be electrically connected with the controller sensor, when two adjacent sensors detect the pressure difference in pipeline, i.e., explanation should
The phenomenon that pipeline between two sensors occurs gas leakage, so as to the alarm of meeting trigger controller；It is however used at present
Sensor is directly connected with gas pipeline, and sensor is to need the device being powered in itself, so, when sensor ageing
And after natural gas is entered in sensor, it is easy to trigger the accident of fire or explosion, there is very big security risk.
Utility model content
To solve the above-mentioned problems, the utility model devises a kind of natural gas line conveying gas leak detection device, in place
When displacement sensor detects the pressure in appendix, appendix can effectively be avoided the phenomenon that fire or explosion occur.
What the purpose of this utility model was realized in：
The natural gas line conveying gas leak detection device of the utility model, including appendix and controller, sets in controller
Alarm is equipped with, several are provided on appendix and is examined along what appendix length direction was distributed for detecting the pressure of gaseous-pressure
Mechanism is surveyed, pressure detection mechanism includes the branch pipe connected with appendix being arranged on appendix lateral wall, can be upper and lower in branch pipe
Sliding block is slidably provided with, the lower end of sliding block is equipped with sealing-plug, is provided on the madial wall of branch pipe lower end for baffle seal
For plug to prevent sealing-plug from sliding into the annular convex platform in appendix, the threaded upper ends of branch pipe are connected with end cap, can be upper and lower in end cap
Slidably be equipped with push rod, the lower end of push rod and the threaded upper ends of sliding block connect, and the upper end of push rod is stretched out in outside end cap, end cap with
Push rod outer cover between sliding block is equipped with to promote the spring of sliding block, and the outer cover of branch pipe equipped with sleeve, with branch pipe consolidate by sleeve
It is fixed, displacement sensor is fixed on the inner top of sleeve, the piston rod of displacement sensor and the upper end of push rod offset, displacement sensing
Device is electrically connected with the controller.
The natural gas line conveying gas leak detection device of the utility model, wherein, the lower end of sliding block is provided with plug division, close
The jack for plug division insertion is provided on the upper surface of blocking, the annular table of evagination is provided on the lateral wall of plug division
Rank is provided with the annular slot that can coordinate clamping with ring-shaped step on the side wall of jack；After this structure, have close
The advantages of blocking and simple sliding block assembling, and in sealing-plug aging, the replacement to sealing-plug can be conveniently realized.
The natural gas line conveying gas leak detection device of the utility model, wherein, the external interference fit ground suit of push rod
There is sealing ring, sealing ring is provided with the annular groove for sealing ring insertion between end cap and push rod, in end cap；By close
The setting of seal can improve the sealing performance between push rod and end cap.
The natural gas line conveying gas leak detection device of the utility model, wherein, sleeve is by several in circumferentially distributed
Bolt fixed with branch pipe；Carry out fixes sleeve by using this mode, there is sleeve fixation.
Since the pressure detection mechanism in the utility model includes being arranged on connecting with appendix on appendix lateral wall
Branch pipe, can slide up and down in branch pipe and be provided with sliding block, the lower end of sliding block is equipped with sealing-plug, on the madial wall of branch pipe lower end
It is provided with for baffle seal plug to prevent sealing-plug from sliding into the annular convex platform in appendix, the threaded upper ends of branch pipe are connected with
End cap can slide up and down in end cap and be equipped with push rod, and the lower end of push rod and the threaded upper ends of sliding block connect, and the upper end of push rod is stretched
Outside for end cap, the push rod outer cover between end cap and sliding block is equipped with to promote the spring of sliding block, and the outer cover of branch pipe is equipped with
Sleeve, sleeve are fixed with branch pipe, are fixed with displacement sensor on the inner top of sleeve, the piston rod of displacement sensor and push rod
Upper end offsets, and displacement sensor is electrically connected with the controller；After said structure, since the piston rod of sensor is to rely on
Push rod promotes, and sliding block is tightly connected by the madial wall of sealing-plug and branch pipe, so, can avoid in appendix
Natural gas reach displacement sensor position, it is achieved thereby that the isolation to natural gas, that is, realize to displacement sensing
The isolation of device, appearance the phenomenon that so as to light natural gas when avoiding when displacement sensor is powered, and then can be effective
Appendix is avoided the phenomenon that fire or explosion occur.
Description of the drawings
Fig. 1 is the schematic cross-sectional view of the utility model；
Fig. 2 is amplified structure diagram at A in Fig. 1.
Specific embodiment
Specific embodiment of the present invention is described in further detail below in conjunction with the accompanying drawings.
A kind of natural gas line conveys gas leak detection device, and including appendix 1 and controller 2, report is provided in controller 2
Device 21 is warned, several pressure detectings for being used to detect gaseous-pressure being distributed along 1 length direction of appendix are provided on appendix 1
Mechanism, pressure detection mechanism include the branch pipe 11 connected with appendix 1 being arranged on 1 lateral wall of appendix, can in branch pipe 11
Slide up and down to and be provided with sliding block 3, the lower end of sliding block 3 is equipped with sealing-plug 4, is provided with and is used on the madial wall of 11 lower end of branch pipe
For baffle seal plug 4 to prevent sealing-plug 4 from sliding into the annular convex platform 12 in appendix 1, the threaded upper ends of branch pipe 11 are connected with end
Lid 5 can slide up and down in end cap 5 and be equipped with push rod 6, and the lower end of push rod 6 is connected with the threaded upper ends of sliding block 3, push rod 6 it is upper
End is stretched out in outside end cap 5, and 6 outer cover of push rod between end cap 5 and sliding block 3 is equipped with to promote the spring 7 of sliding block 3, branch pipe 11
Outer cover equipped with sleeve 8, sleeve 8 is fixed with branch pipe 11, and displacement sensor 9, displacement sensing are fixed on the inner top of sleeve 8
The piston rod of device 9 and the upper end of push rod 6 offset, and displacement sensor 9 is electrically connected with controller 2；The lower end of sliding block 3 is provided with grafting
Portion 31 is provided with the jack 41 being inserted into for plug division 31 on the upper surface of sealing-plug 4, is provided on the lateral wall of plug division 31
The ring-shaped step 32 of evagination is provided with the annular slot 42 that can coordinate clamping with ring-shaped step 32 on the side wall of jack 41；Pass through
After this structure, it is simple to have the advantages that sealing-plug is assembled with sliding block, and in sealing-plug aging, can conveniently realize
Replacement to sealing-plug；The external interference fit ground of push rod 6 is set with sealing ring 10, sealing ring 10 be located at end cap 5 and push rod 6 it
Between, the annular groove 51 being embedded in for sealing ring 10 is provided in end cap 5；By the setting of sealing ring, can improve push rod with
Sealing performance between end cap；Sleeve 8 is fixed by several in circumferentially distributed bolt 81 with branch pipe 11；By using this
Mode carrys out fixes sleeve, has the advantages that sleeve fixation；When the utility model at work, when being passed through natural gas in appendix
Afterwards, the pressure increase in appendix, sliding block and sealing-plug are raised, and the piston of displacement sensor is promoted under the action of push rod
Bar is shunk, and the position data after displacement sensor ventilates appendix passes to controller, makes defeated when appendix leaks air
When pressure in tracheae reduces, spring promotes sliding block and sealing-plug to move down, and push rod loses the top power to the piston of displacement sensor,
Spring in displacement sensor promotes piston rod to move down, and the delta data of piston rod position can be passed to control by displacement sensor
Device；When controller detects that the data that two adjacent pressure detection mechanisms detect are different, i.e. the position of displacement sensor
When shifting data are different, then the phenomenon that illustrating to occur gas leakage on the appendix between two adjacent pressure detection mechanisms,
So as to the alarm equipment alarm in meeting trigger controller, controller can indicate have on the appendix between two pressure detection mechanisms
The phenomenon that leaking air；SCM system may be employed in controller used in the utility model, as long as being able to detect that
The displacement data of displacement sensor, and the circuit with liquid crystal display and buzzer warning, the circuit are non-on the market
The circuit structure usually advised is that person of ordinary skill in the field can most clearly know, therefore the application is no longer
It repeats.
It should be noted that in the embodiment above, as long as reconcilable technical solution can carry out permutation and combination, this
Field technology personnel can be possible to according to the mathematical knowledge limit of permutation and combination, and therefore, the utility model is no longer to arrangement
Technical solution after combination illustrated one by one, but it is understood that being the technical solution after permutation and combination by the utility model
It is disclosed.
It should be noted that listed above is only a kind of specific embodiment of the utility model.Obviously, the utility model
Above example is not limited to, acceptable there are many deformations.
In short, those of ordinary skill in the art can be from the institute that the utility model disclosure is directly exported or associated
There is deformation, be considered as the scope of protection of the utility model.
Claims (4)
1. a kind of natural gas line conveys gas leak detection device, including appendix（1）And controller（2）, the controller（2）In
It is provided with alarm（21）, it is characterised in that：The appendix（1）On be provided with several along appendix（1）Length direction point
The pressure detection mechanism for being used to detect gaseous-pressure of cloth, the pressure detection mechanism include being arranged on appendix（1）Lateral wall
On and appendix（1）The branch pipe of connection（11）, the branch pipe（11）In can slide up and down to and be provided with sliding block（3）, the cunning
Block（3）Lower end sealing-plug is installed（4）, the branch pipe（11）It is provided on the madial wall of lower end for baffle seal plug（4）
To prevent sealing-plug（4）Slide into appendix（1）In annular convex platform（12）, the branch pipe（11）Threaded upper ends be connected with end
Lid（5）, the end cap（5）In can slide up and down to and be equipped with push rod（6）, the push rod（6）Lower end and sliding block（3）Upper end
It is threadedly coupled, the push rod（6）Upper end stretch out in end cap（5）Outside, the end cap（5）With sliding block（3）Between push rod（6）Outside
Portion is set with to promote sliding block（3）Spring（7）, the branch pipe（11）Outer cover be equipped with sleeve（8）, the sleeve（8）
With branch pipe（11）It is fixed, the sleeve（8）Inner top on be fixed with displacement sensor（9）, institute's displacement sensors（9）Work
Stopper rod and push rod（6）Upper end offset, institute's displacement sensors（9）With controller（2）Electrical connection.
2. natural gas line according to claim 1 conveys gas leak detection device, which is characterized in that the sliding block（3）'s
Lower end is provided with plug division（31）, the sealing-plug（4）Upper surface on be provided with for plug division（31）The jack of insertion
（41）, the plug division（31）Lateral wall on be provided with the ring-shaped step of evagination（32）, the jack（41）Side wall on set
Being equipped with can be with ring-shaped step（32）Coordinate the annular slot of clamping（42）.
3. natural gas line according to claim 2 conveys gas leak detection device, which is characterized in that the push rod（6）'s
It is set with sealing ring to outside interference fit（10）, the sealing ring（10）Positioned at end cap（5）With push rod（6）Between, the end
Lid（5）In be provided with for sealing ring（10）Embedded annular groove（51）.
4. natural gas line according to claim 3 conveys gas leak detection device, which is characterized in that the sleeve（8）It is logical
Several are crossed in circumferentially distributed bolt（81）With branch pipe（11）It is fixed.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721498952.6U CN207378507U (en) | 2017-11-12 | 2017-11-12 | A kind of natural gas line conveys gas leak detection device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721498952.6U CN207378507U (en) | 2017-11-12 | 2017-11-12 | A kind of natural gas line conveys gas leak detection device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN207378507U true CN207378507U (en) | 2018-05-18 |
Family
ID=62332455
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201721498952.6U Expired - Fee Related CN207378507U (en) | 2017-11-12 | 2017-11-12 | A kind of natural gas line conveys gas leak detection device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN207378507U (en) |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109140248A (en) * | 2018-10-10 | 2019-01-04 | 南京佳业检测工程有限公司 | A kind of flue leak detecting device |
| CN109520684A (en) * | 2018-12-07 | 2019-03-26 | 中国科学院长春光学精密机械与物理研究所 | A kind of Purely mechanical gas leakage monitor and method |
| CN110285278A (en) * | 2019-04-03 | 2019-09-27 | 广州文冲船厂有限责任公司 | A kind of sacrifice flange |
| CN110594595A (en) * | 2019-10-18 | 2019-12-20 | 安徽世纪科技咨询服务有限公司 | Pipeline gas leakage prevention monitoring device for natural gas conveying pipeline |
| CN111609972A (en) * | 2020-06-02 | 2020-09-01 | 朱书贤 | Pipe connection air tightness detection device |
| CN114177562A (en) * | 2022-01-13 | 2022-03-15 | 国网上海市电力公司 | Flexible temperature sensing self-starting fire extinguishing device capable of being filled and detected conveniently |
-
2017
- 2017-11-12 CN CN201721498952.6U patent/CN207378507U/en not_active Expired - Fee Related
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109140248A (en) * | 2018-10-10 | 2019-01-04 | 南京佳业检测工程有限公司 | A kind of flue leak detecting device |
| CN109520684A (en) * | 2018-12-07 | 2019-03-26 | 中国科学院长春光学精密机械与物理研究所 | A kind of Purely mechanical gas leakage monitor and method |
| CN110285278A (en) * | 2019-04-03 | 2019-09-27 | 广州文冲船厂有限责任公司 | A kind of sacrifice flange |
| CN110594595A (en) * | 2019-10-18 | 2019-12-20 | 安徽世纪科技咨询服务有限公司 | Pipeline gas leakage prevention monitoring device for natural gas conveying pipeline |
| CN111609972A (en) * | 2020-06-02 | 2020-09-01 | 朱书贤 | Pipe connection air tightness detection device |
| CN114177562A (en) * | 2022-01-13 | 2022-03-15 | 国网上海市电力公司 | Flexible temperature sensing self-starting fire extinguishing device capable of being filled and detected conveniently |
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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: 20180518 Termination date: 20181112 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |