CN210687129U - Ventilation isolated safety valve box - Google Patents
Ventilation isolated safety valve box Download PDFInfo
- Publication number
- CN210687129U CN210687129U CN201921020099.6U CN201921020099U CN210687129U CN 210687129 U CN210687129 U CN 210687129U CN 201921020099 U CN201921020099 U CN 201921020099U CN 210687129 U CN210687129 U CN 210687129U
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- Prior art keywords
- valve
- pipe
- valve box
- sealed
- sealing
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- 238000009423 ventilation Methods 0.000 title claims abstract description 11
- 238000007789 sealing Methods 0.000 claims description 35
- 238000002955 isolation Methods 0.000 claims description 7
- 230000008878 coupling Effects 0.000 abstract description 8
- 238000010168 coupling process Methods 0.000 abstract description 8
- 238000005859 coupling reaction Methods 0.000 abstract description 8
- 238000012544 monitoring process Methods 0.000 abstract description 3
- 238000009434 installation Methods 0.000 abstract description 2
- 230000001360 synchronised effect Effects 0.000 abstract description 2
- 239000010410 layer Substances 0.000 description 10
- 239000007789 gas Substances 0.000 description 7
- 239000002737 fuel gas Substances 0.000 description 4
- 238000009413 insulation Methods 0.000 description 3
- 238000005034 decoration Methods 0.000 description 2
- 238000001514 detection method Methods 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 239000000446 fuel Substances 0.000 description 1
- 239000011261 inert gas Substances 0.000 description 1
- 239000011229 interlayer Substances 0.000 description 1
- 238000012423 maintenance Methods 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 229910001220 stainless steel Inorganic materials 0.000 description 1
- 239000010935 stainless steel Substances 0.000 description 1
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Abstract
The utility model discloses a ventilation isolated form safety valve case, the power distribution valve comprises a valve, the valve is provided with sealed valve case outward, leaves the cavity between sealed valve case and the valve, be provided with the hand wheel on the valve, the hand wheel stretches out sealed valve case, the both sides that sealed valve case corresponds the valve are provided with the double-walled takeover, the double-walled takeover is including external pipe and inner union coupling, forms the ring chamber between external pipe and the inner union coupling, ring chamber and cavity intercommunication, external pipe and sealed valve case fixed connection, inner union coupling and valve fixed connection, the utility model provides a pipe valve installation problem in the sealed double-walled pipe for the ring chamber of double-walled pipe need not the disconnection in valve department, makes its cavity intercommunication with valve department, not only can reveal the valve and carry out the synchronous monitoring, can also make the valve reduce heat-conduction simultaneously.
Description
Technical Field
The utility model belongs to double-walled pipe connection application part field, more specifically the utility model relates to a ventilation isolated form safety valve case that says so.
Background
A fuel gas conveying pipeline exists in a fuel storage and supply system of a ship fuel gas main engine. At present, aiming at the pipeline of the flammable gas grade, a stainless steel pipe is generally adopted for conveying in a ventilation pipe, and the method has a plurality of problems, such as large space occupied by the pipe, and extremely difficult maintenance of the pipeline; in addition, a double-layer pipeline (also called a double-wall pipe) is used for conveying media, and the pipeline is monitored by air draft between the two layers of pipelines.
The valve is usually needed to be arranged on the pipeline of the double-wall pipe so as to enable the inner pipe to be switched on or switched off, and when the valve is arranged at present, the double-wall pipe needs to seal a ring cavity between the inner pipe and the outer pipe before reaching the valve, the inner pipe extends out of the outer pipe, and then the inner pipe is connected with an interface of the valve, so that the purpose of heat insulation cannot be achieved at the valve, and the leakage condition of the valve is difficult to monitor.
SUMMERY OF THE UTILITY MODEL
The utility model provides a not enough to prior art, the utility model provides a solve inner tube valve installation problem in sealed double-walled pipe for the ring chamber of double-walled pipe need not the disconnection in valve department, makes its cavity intercommunication with valve department, not only can reveal to the valve and carry out the synchronous control, can also make the valve reduce heat-conductive ventilation isolated form safety valve case simultaneously.
In order to achieve the above purpose, the utility model provides a following technical scheme: a ventilation isolation type safety valve box comprises a valve, wherein a sealing valve box is arranged outside the valve, a cavity is reserved between the sealing valve box and the valve, a hand wheel is arranged on the valve and extends out of the sealing valve box, double-wall connecting pipes are arranged on two sides, corresponding to the valve, of the sealing valve box and comprise an outer connecting pipe and an inner connecting pipe, an annular cavity is formed between the outer connecting pipe and the inner connecting pipe and communicated with the cavity, the outer connecting pipe is fixedly connected with the sealing valve box, and the inner connecting pipe is fixedly connected with the valve.
Further, a sliding support is arranged between the inner connecting pipe and the outer connecting pipe.
And a sealing coupler is arranged between the hand wheel and the valve, and the sealing coupler and the sealing valve box are sealed.
And a pressure sensor extending into the cavity is further arranged on the sealing valve box.
Further the sealed valve box corresponds and is provided with adapter sleeve in the outer pipe department of taking over, and adapter sleeve welds in the outside of taking over outward.
Compared with the prior art, the beneficial effects of the utility model are that: when the double-wall pipe reaches the valve, the annular cavity of the double-wall pipe is not required to be closed and disconnected, and the annular cavity of the double-wall pipe is communicated with the cavity at the valve to form an area with the same pressure, so that the pressure of the interlayer can be changed no matter the double-wall pipe leaks or the valve leaks, and the monitoring of the double-wall pipe is not influenced; the cavity isolates the fuel gas conveyed inside the valve from the outside, and a good heat insulation effect is achieved.
Drawings
Fig. 1 is a schematic structural view of the ventilation isolated safety valve box of the present invention.
Reference numerals: 1. sealing the valve box; 12. sealing the coupling; 13. connecting a sleeve; 14. a cavity; 2. a valve; 21. a hand wheel; 31. an inner connecting pipe; 32. an external connection pipe; 33. sliding support; 36. and (4) an annular cavity.
Detailed Description
An embodiment of the ventilation isolation type safety valve box of the present invention is further explained with reference to fig. 1.
In the description of the present invention, it should be noted that, for the orientation words, such as the terms "center", "lateral (X)", "longitudinal (Y)", "vertical (Z)", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", etc., the orientation and the positional relationship are indicated based on the orientation or the positional relationship shown in the drawings, and the description is only for convenience of describing the present invention and simplifying the description, but not for indicating or implying that the device or the element referred to must have a specific orientation, be constructed and operated in a specific orientation, and should not be construed as limiting the specific protection scope of the present invention.
Furthermore, if the terms "first" and "second" are used for descriptive purposes only, they are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features. Thus, the definition of "a first" or "a second" feature may explicitly or implicitly include one or more of the features, and "a plurality" or "a plurality" in the description of the invention means two or more unless a specific definition is explicitly provided.
A ventilation isolation type safety valve box comprises a valve 2, a sealing valve box 1 is arranged outside the valve 2, a cavity 14 is reserved between the sealing valve box 1 and the valve 2, a hand wheel 21 is arranged on the valve 2, the hand wheel 21 extends out of the sealing valve box 1, double-wall connecting pipes are arranged on two sides, corresponding to the valve 2, of the sealing valve box 1 and comprise an outer connecting pipe 32 and an inner connecting pipe 31, an annular cavity 36 is formed between the outer connecting pipe 32 and the inner connecting pipe 31, the annular cavity 36 is communicated with the cavity 14, the outer connecting pipe 32 is fixedly connected with the sealing valve box 1, and the inner connecting pipe 31 is fixedly connected with the valve 2.
The valve 2 usually has two ports, each of which is connected to the inner connecting tube 31 on both sides, while the outer connecting tube 32 is correspondingly connected to the outer sealing valve housing 1.
When the gas leakage detection device is used, the inner pipe 31 is connected with the inner pipe of the double-wall pipe in a sealing way (generally welded), the outer pipe 32 is connected with the outer pipe of the double-wall pipe in a sealing way, at the moment, the annular cavity of the double-wall pipe, the annular cavity 36 between the inner pipe 31 and the outer pipe 32 and the cavity 14 are communicated and vacuumized or filled with inert gas, the inner pipe 31, the inner pipe and the valve 2 convey gas, namely, the pressure sensor at any position on the double-wall pipe can detect the whole leakage condition, if the pressure sensor leaks at the double-wall pipe or the valve 2, the pressure sensor can detect the gas leakage condition, namely the gas leakage detection device is used as a whole for monitoring, and a worker can stop conveying the gas in time and search and repair the gas leakage to prevent accidents; meanwhile, the valve 2 is isolated from the outside by the cavity 14, so that the outside temperature cannot be rapidly transmitted to the conveyed fuel gas through the valve 2, and the purpose of overall heat insulation and safety of the whole pipeline is achieved.
In the present embodiment, a sliding support 33 is preferably disposed between the inner pipe 31 and the outer pipe 32, so that the ship vibrates more frequently, and for a double-walled pipe, the vibration can be counteracted by the sliding support 33 between the inner pipe and the outer pipe, and the inner pipe slides relative to the outer pipe during vibration, so that the sliding support 33 disposed between the inner pipe 31 and the outer pipe 32 can also enable the inner pipe 31 and the outer pipe 32 to slide relative to each other, that is, the whole pipe as a whole can slide synchronously.
It is preferred in this embodiment be provided with sealed shaft coupling 12 between hand wheel 21 and the valve 2, sealed shaft coupling 12 and sealed valve box 1 between sealed, at first when boats and ships vibrate, the inner tube will drive valve 2 together to slide, hand wheel 21 and sealed valve box relatively fixed this moment, that is to say, valve 2 will with hand wheel 21 relative movement, sealed shaft coupling 12 can move this moment and guarantee valve 2 and hand wheel 21's being connected, do not influence hand wheel 21 drive valve 2 simultaneously and rotate, sealed shaft coupling 12 makes hand wheel 21 wear out sealed valve box 1 department and keeps sealed, make cavity 14 sealed promptly.
Further be provided with the pressure sensor who stretches into in cavity 14 on the sealed valve case 1, set up pressure sensor alone in sealed valve case 1 department, can detect whether there is the leakage in sealed valve case 1 and valve 2 department fast, when leaking, the pressure sensor here can react first.
In this embodiment, a connection sleeve 13 is disposed at a position of the sealing valve box 1 corresponding to the external connection pipe 32, and the connection sleeve 13 is welded to the outer side of the external connection pipe 32, so as to increase the connection strength between the sealing valve box 1 and the external connection pipe 32.
After the safety valve box of the utility model is arranged in the pipeline, the inner pipe, the inner connecting pipe 31 and the valve 2 are connected into a whole, which is called as the inner layer; the outer pipe, the external connecting pipe 32 and the sealing valve box 1 are connected into a whole, and are called as an outer layer; the hand wheel 21 is actually positioned on the outer layer and is connected with the inner layer through the sealing coupler 12, namely, the inner layer and the outer layer can slide integrally relatively, the sealing coupler 12 enables the hand wheel 21 and the valve 2 to move relatively when the inner layer and the outer layer slide integrally, and then the whole pipeline is integrally monitored.
It is above only the utility model discloses a preferred embodiment, the utility model discloses a scope of protection does not only confine above-mentioned embodiment, the all belongs to the utility model discloses a technical scheme under the thinking all belongs to the utility model discloses a scope of protection. It should be noted that, for those skilled in the art, various modifications and decorations can be made without departing from the principle of the present invention, and these modifications and decorations should also be regarded as the protection scope of the present invention.
Claims (5)
1. A ventilation isolated form safety valve case, includes the valve, its characterized in that: the sealing valve is characterized in that a sealing valve box is arranged outside the valve, a cavity is reserved between the sealing valve box and the valve, a hand wheel is arranged on the valve and extends out of the sealing valve box, double-wall connecting pipes are arranged on two sides, corresponding to the valve, of the sealing valve box and comprise an outer connecting pipe and an inner connecting pipe, a ring cavity is formed between the outer connecting pipe and the inner connecting pipe and communicated with the cavity, the outer connecting pipe is fixedly connected with the sealing valve box, and the inner connecting pipe is fixedly connected with the valve.
2. The vent isolation type safety valve box according to claim 1, wherein: a sliding support is arranged between the inner connecting pipe and the outer connecting pipe.
3. The vent isolation type safety valve box according to claim 2, wherein: and a sealing coupler is arranged between the hand wheel and the valve, and the sealing coupler and the sealing valve box are sealed.
4. The vent isolation type safety valve box according to claim 3, wherein: and the sealing valve box is provided with a pressure sensor extending into the cavity.
5. The vent isolation type safety valve box according to claim 4, wherein: the sealing valve box is provided with a connecting sleeve pipe corresponding to the external connecting pipe, and the connecting sleeve pipe is welded on the outer side of the external connecting pipe.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921020099.6U CN210687129U (en) | 2019-07-02 | 2019-07-02 | Ventilation isolated safety valve box |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921020099.6U CN210687129U (en) | 2019-07-02 | 2019-07-02 | Ventilation isolated safety valve box |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN210687129U true CN210687129U (en) | 2020-06-05 |
Family
ID=70885036
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201921020099.6U Active CN210687129U (en) | 2019-07-02 | 2019-07-02 | Ventilation isolated safety valve box |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN210687129U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110375097A (en) * | 2019-07-02 | 2019-10-25 | 亚达管道***股份有限公司 | The ventilation safe clack box of isolated form |
-
2019
- 2019-07-02 CN CN201921020099.6U patent/CN210687129U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110375097A (en) * | 2019-07-02 | 2019-10-25 | 亚达管道***股份有限公司 | The ventilation safe clack box of isolated form |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CP03 | Change of name, title or address |
Address after: No. 525 Xinda Road, Xinfeng Town, Nanhu District, Jiaxing City, Zhejiang Province, 314005 Patentee after: Zhejiang Yada Green Energy Technology Co.,Ltd. Country or region after: China Address before: 314000 Xinfeng Industrial Zone, Nanhu District, Jiaxing City, Zhejiang Province Patentee before: YADA PIPELINE SYSTEM Co.,Ltd. Country or region before: China |
|
| CP03 | Change of name, title or address |