CN207095802U - The instrument that a kind of valve blowdown leak detection lengthens - Google Patents
The instrument that a kind of valve blowdown leak detection lengthens Download PDFInfo
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- CN207095802U CN207095802U CN201721099482.6U CN201721099482U CN207095802U CN 207095802 U CN207095802 U CN 207095802U CN 201721099482 U CN201721099482 U CN 201721099482U CN 207095802 U CN207095802 U CN 207095802U
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- valve
- steel pipe
- blowdown
- pressure gauge
- leak detection
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Abstract
It the utility model is related to the instrument that a kind of valve blowdown leak detection lengthens, including steel pipe, the short steel pipes that the steel pipe is detachably connected by multistage form, on the steel pipe pressure gauge for leak detection, the ball valve for blocking gas and the choke stop evacuation valve for adjusting flow velocity are sequentially provided with along the direction of blowdown, the front end of the steel pipe is threadedly coupled with valve blow-off pipe, and the rear end of the steel pipe is provided with floss hole.Beneficial effect：Operating space can be increased to employee, while the place that natural gas is guided to from employee farther out is discharged, moreover it is possible to the speed of control of sewage disposal, save with water the processing step hunted leak, steel pipe is detachably connected, and is easy to carry, and is applicable to different situations by the short steel pipes of different length and hop count.
Description
Technical field
It the utility model is related to a kind of valve matched instrument, more particularly to the instrument that a kind of valve blowdown leak detection lengthens.
Background technology
Valve is the visual plant for oil and gas pipeline conveying, and valves leakage inspection mainly utilizes valve blowdown
To be checked, the critical piece of valve blowdown is that a ball valve adds blowdown mouth (equipment having is that two ball valves add blowdown mouth),
Two ball valves are opened when blowdown and carry out blowdown.
The defects of prior art and deficiency：
(1) gas pressure in valve valve pocket is equal to and above pipeline pressure, and some pressure piping pressure reach 10 MPas,
If two ball valves of standard-sized sheet carry out blowdown, sound is bigger, and air-flow is bigger.
(2) existing valve blowoff valve is shorter, human users space very little, often occur during blowdown lubricating grease,
The impurity such as stop-leak compound, sand are sprayed onto the situation of outside, and personnel easily come to harm.
(3) ball valve can only completely open and close, it is impossible to be used in throttling, for control of sewage disposal speed during blowdown, utilizes ball
Valve carries out throttling control, for a long time using that can cause to damage to the spheroid of ball valve, causes gas leakage at blowdown mouth.
(4) blowdown to ball valve test Lou later, can only be tested with water, easily causes waste removal equipment corrosion.
Utility model content
Technical problem to be solved in the utility model is to provide the instrument that a kind of valve blowdown leak detection lengthens, and can give member
Work increases operating space, while the place that natural gas is guided to from employee farther out is discharged, moreover it is possible to the speed of control of sewage disposal, saves
Go with water the processing step hunted leak.
The technical scheme that the utility model solves above-mentioned technical problem is as follows：The instrument that a kind of valve blowdown leak detection lengthens,
Including steel pipe, the short steel pipes that the steel pipe is detachably connected by multistage form, and are set successively along the direction of blowdown on the steel pipe
There are the pressure gauge for leak detection, the ball valve for blocking gas and the choke stop evacuation valve for adjusting flow velocity, the steel pipe
Front end be threadedly coupled with valve blow-off pipe, the rear end of the steel pipe is provided with floss hole.
The beneficial effects of the utility model are：(1) by blowdown, test Lou lengthening tool give employee increase operating space, together
When the place that natural gas is guided to from employee farther out is discharged, further reduce personnel injury.
(2) blowdown, test Lou lengthening tool and add choke stop evacuation valve, be vented when blowdown by throttle check
Valve controlling blowdown speed, reduce the noise injury that employee is easily subject in blowdown, add the security of blowdown.
(3) blowdown, test Lou lengthening tool and add a ball valve and pressure gauge, close ball valve after draining the gas in valve pocket
And choke stop evacuation valve, if pressure rises explanation valves leakage, reduce the processing step checked with water.
(4) steel pipe is detachably connected, and is easy to carry, and is applicable to by the short steel pipes of different length and hop count different
Situation.
On the basis of above-mentioned technical proposal, the utility model can also do following improvement.
Further, the pressure gauge valve for being used for controlling the pressure meter switch state is provided with below the pressure gauge.
It is closing presure table during blowdown using the above-mentioned further beneficial effect of scheme, in case dirt damages pressure gauge, inspection
Pressure gauge is opened during leakage, interior leakage is judged whether according to whether the pressure of pressure gauge changes.
Further, the pressure gauge is precision pressure gauge, range 0-1MPa.
Beneficial effect using above-mentioned further scheme is that range is that 0-1MPa precision pressure gauge can accurately measure
With the presence or absence of interior leakage.
Further, the steel pipe is horizontally disposed with, the pressure gauge, the ball valve and the choke stop evacuation valve perpendicular to
The steel pipe and set straight up, the floss hole perpendicular to the steel pipe and its opening straight down.
Beneficial effect using above-mentioned further scheme is the pressure gauge, the ball valve and throttle check emptying
Valve is perpendicular to the steel pipe and sets straight up, is easy to human users, the floss hole perpendicular to the steel pipe and its
Opening straight down, is easy to dirt discharge smooth.
Further, the material of the steel pipe is Steel Tube Special and its internal diameter is identical with the internal diameter of the valve blow-off pipe.
Beneficial effect using above-mentioned further scheme is that Steel Tube Special can bear high pressure, pipe diameter and the valve
The internal diameter of blow-off pipe is identical to ensure that blowdown is stable, smooth, does not have pressure and the abrupt change of flow.
Brief description of the drawings
Fig. 1 is the tool construction schematic diagram that a kind of valve blowdown leak detection provided by the utility model lengthens；
In accompanying drawing, the list of parts representated by each label is as follows：
1st, pressure gauge, 2, ball valve, 3, choke stop evacuation valve, 4, steel pipe, 5, pressure gauge valve, 6, valve blow-off pipe, 7, row
Put mouth.
Embodiment
Principle of the present utility model and feature are described below in conjunction with accompanying drawing, example is served only for explaining this practicality
It is new, it is not intended to limit the scope of the utility model.
As shown in figure 1, the instrument that a kind of valve blowdown leak detection lengthens, including steel pipe 4, the steel pipe 4 are detachable by multistage
The short steel pipes of connection are formed, and the pressure gauge 1 for leak detection is sequentially provided with, for blocking along the direction of blowdown on the steel pipe 4
The ball valve 2 of gas and the choke stop evacuation valve 3 for adjusting flow velocity, front end and the screw thread of valve blow-off pipe 6 of the steel pipe 4 connect
Connect, the rear end of the steel pipe 4 is provided with floss hole 7.
The lower section of pressure gauge 1 is provided with the pressure gauge valve 5 for being used for controlling the on off state of pressure gauge 1.
The pressure gauge 1 is precision pressure gauge, range 0-1MPa.The steel pipe 4 is horizontally disposed, the pressure gauge 1, institute
Ball valve 2 and the choke stop evacuation valve 3 are stated perpendicular to the steel pipe 4 and is set straight up, the floss hole 7 perpendicular to
The steel pipe 4 and its opening straight down.
The material of the steel pipe 4 is Steel Tube Special and its internal diameter is identical with the internal diameter of the valve blow-off pipe 6.
Application method：
During normal blowdown, closing presure table valve 5, ball valve 2 is opened, regulation choke stop evacuation valve 3 carrys out control of sewage disposal speed,
Dirt flows through steel pipe 4 by valve blow-off pipe 6 and flowed out from floss hole 7.
When blowdown is hunted leak after terminating, pressure gauge valve 5 is opened, closes ball valve 2, choke stop evacuation valve 3 and blowoff valve
Valve, by one section where pressure gauge 1 and extraneous closing, a period of time is stood, if the pressure of pressure gauge 1 rises in explanation presence
Leakage, if the unchanged explanation non-internal leakage of the pressure of pressure gauge 1.
Preferred embodiment of the present utility model is the foregoing is only, it is all in this practicality not to limit the utility model
Within new spirit and principle, any modification, equivalent substitution and improvements made etc., guarantor of the present utility model should be included in
Within the scope of shield.
Claims (4)
1. the instrument that a kind of valve blowdown leak detection lengthens, it is characterised in that including steel pipe (4), the steel pipe (4) is removable by multistage
The short steel pipes for unloading connection form, and are sequentially provided with the pressure gauge (1) for leak detection along the direction of blowdown on the steel pipe (4), use
In the ball valve (2) for blocking gas and choke stop evacuation valve (3) for adjusting flow velocity, the front end of the steel pipe (4) and valve
Blow-off pipe (6) is threadedly coupled, and the rear end of the steel pipe (4) is provided with floss hole (7).
2. the instrument that a kind of valve blowdown leak detection lengthens according to claim 1, it is characterised in that under the pressure gauge (1)
Side is provided with the pressure gauge valve (5) for being used for controlling the pressure gauge (1) on off state.
3. the instrument that a kind of valve blowdown leak detection lengthens according to claim 1, it is characterised in that the pressure gauge (1) is
Precision pressure gauge, range 0-1MPa.
4. the instrument lengthened of being hunted leak according to a kind of any one of claim 1-3 valve blowdowns, it is characterised in that the steel pipe
(4) material is Steel Tube Special and its internal diameter is identical with the internal diameter of the valve blow-off pipe (6).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721099482.6U CN207095802U (en) | 2017-08-30 | 2017-08-30 | The instrument that a kind of valve blowdown leak detection lengthens |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721099482.6U CN207095802U (en) | 2017-08-30 | 2017-08-30 | The instrument that a kind of valve blowdown leak detection lengthens |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN207095802U true CN207095802U (en) | 2018-03-13 |
Family
ID=61539795
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201721099482.6U Active CN207095802U (en) | 2017-08-30 | 2017-08-30 | The instrument that a kind of valve blowdown leak detection lengthens |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN207095802U (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109373192A (en) * | 2018-11-30 | 2019-02-22 | 中石化川气东送天然气管道有限公司 | A kind of natural gas line is released tool with the safe blowdown of DN100 or less ball valve |
| CN113720555A (en) * | 2021-09-26 | 2021-11-30 | 国家石油天然气管网集团有限公司 | Device and method for detecting internal leakage of ball valve of oil and gas pipeline |
| CN116773274A (en) * | 2023-08-28 | 2023-09-19 | 成都成高阀门股份有限公司 | Sampling device and sampling method based on ball valve |
| CN117346982A (en) * | 2023-12-05 | 2024-01-05 | 西南石油大学 | Buried ball valve internal leakage detection device and method |
-
2017
- 2017-08-30 CN CN201721099482.6U patent/CN207095802U/en active Active
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109373192A (en) * | 2018-11-30 | 2019-02-22 | 中石化川气东送天然气管道有限公司 | A kind of natural gas line is released tool with the safe blowdown of DN100 or less ball valve |
| CN113720555A (en) * | 2021-09-26 | 2021-11-30 | 国家石油天然气管网集团有限公司 | Device and method for detecting internal leakage of ball valve of oil and gas pipeline |
| CN116773274A (en) * | 2023-08-28 | 2023-09-19 | 成都成高阀门股份有限公司 | Sampling device and sampling method based on ball valve |
| CN116773274B (en) * | 2023-08-28 | 2023-10-24 | 成都成高阀门股份有限公司 | Sampling device and sampling method based on ball valve |
| CN117346982A (en) * | 2023-12-05 | 2024-01-05 | 西南石油大学 | Buried ball valve internal leakage detection device and method |
| CN117346982B (en) * | 2023-12-05 | 2024-02-27 | 西南石油大学 | Buried ball valve internal leakage detection device and method |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20200911 Address after: 100728 Beijing, Chaoyangmen, North Street, No. 22, No. Co-patentee after: SINOPEC CHUANQI DONGSONG NATURAL GAS PIPELINE Co.,Ltd. Patentee after: China Petroleum & Chemical Corp. Address before: 430223 Hubei Wuhan City, Wuhan City, East Lake New Technology Development Zone Optics Valley Avenue No. 126 Sichuan Gas East pipeline project, the 1-5 layer of the Wuhan control center Patentee before: SINOPEC CHUANQI DONGSONG NATURAL GAS PIPELINE Co.,Ltd. |
|
| TR01 | Transfer of patent right | ||
| CP01 | Change in the name or title of a patent holder |
Address after: No. 22, Chaoyangmen North Street, Chaoyang District, Beijing 100728 Patentee after: CHINA PETROLEUM & CHEMICAL Corp. Patentee after: Sichuan East Natural Gas Pipeline Co.,Ltd. Address before: No. 22, Chaoyangmen North Street, Chaoyang District, Beijing 100728 Patentee before: CHINA PETROLEUM & CHEMICAL Corp. Patentee before: SINOPEC CHUANQI DONGSONG NATURAL GAS PIPELINE Co.,Ltd. |
|
| CP01 | Change in the name or title of a patent holder | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20211111 Address after: Room 08-10, 6 / F, block a, No. 5, Dongtucheng Road, Chaoyang District, Beijing 100013 Patentee after: National Petroleum and natural gas pipeline network Group Co.,Ltd. Patentee after: Sichuan East Natural Gas Pipeline Co.,Ltd. Address before: No. 22, Chaoyangmen North Street, Chaoyang District, Beijing 100728 Patentee before: CHINA PETROLEUM & CHEMICAL Corp. Patentee before: Sichuan East Natural Gas Pipeline Co.,Ltd. |
|
| TR01 | Transfer of patent right |