CN204226777U - Pressure equaliser on high pressure gas pipeline large size valve - Google Patents
Pressure equaliser on high pressure gas pipeline large size valve Download PDFInfo
- Publication number
- CN204226777U CN204226777U CN201420644248.7U CN201420644248U CN204226777U CN 204226777 U CN204226777 U CN 204226777U CN 201420644248 U CN201420644248 U CN 201420644248U CN 204226777 U CN204226777 U CN 204226777U
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- Prior art keywords
- valve
- pipeline
- scale ball
- ball valve
- large size
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- Expired - Fee Related
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Abstract
The utility model relates to a kind of pressure equaliser on high pressure gas pipeline large size valve, comprise the outlet conduit of large-scale ball valve inlet pipeline, large-scale ball valve, large-scale ball valve, by a small-bore pipeline small-bore release valve ball in parallel on the inlet pipeline and outlet conduit at large-scale ball valve two ends, the aperture of described small-bore pipeline is that large-scale ball valve imports and exports 1/1 to nine/7th of pipeline aperture.The utility model is by the setting of release valve ball on large size valve, can pressure reduction before and after active balance, the convenient large size valve opened on high pressure pipe line, for the work of site operation personnel is provided convenience, device is arranged simply, compact structure, easy to use, invest little, for ease of maintenaince operation and safe and reliable.
Description
Technical field
The utility model belongs to LNG Liquefied natural gas pressure equaliser technical field, particularly a kind of pressure equaliser on high pressure gas pipeline large size valve.
Background technique
The material day by day improved along with increasing and the people of China's natural gas exploration and development dynamics and environmental protection needs, in recent years, the development at Long-distance Transmission Pipeline and large-scale door station is very rapid, but, because the pipe diameter at Long-distance Transmission Pipeline and large-scale door station is larger, pressure is higher, large size valve is when operation with high pressure, valve both sides pressure reduction is too large, not easily open, great inconvenience is brought to the work of site operation personnel, therefore, the large valve at Long-distance Transmission Pipeline and large-scale door station installs a kind of pressure equaliser on high pressure gas pipeline large size valve additional and just seems very necessary.
Summary of the invention
The purpose of this utility model is for the deficiencies in the prior art, and proposes a kind of pressure equaliser on high pressure gas pipeline large size valve.
The utility model solves its technical problem and takes following technological scheme to realize:
A kind of pressure equaliser on high pressure gas pipeline large size valve, comprise the outlet conduit of large-scale ball valve inlet pipeline, large-scale ball valve, large-scale ball valve, by a small-bore pipeline small-bore release valve ball in parallel on the inlet pipeline and outlet conduit at large-scale ball valve two ends, the aperture of described small-bore pipeline is that large-scale ball valve imports and exports 1/1 to nine/7th of pipeline aperture.
And the large-scale ball valve being φ 480 × 12mm for specification imports and exports pipeline, and the large-scale ball valve model selected is Q347F-600LB DN450, now, the model of release valve ball adopts Q47F-600LB DN50.
Advantage of the present utility model and good effect are:
1, the flow setting in the utility model pressure equaliser is simple, compact structure, easy to use, invest little, for ease of maintenaince operation and safe and reliable;
2, the utility model is by the setting of release valve ball on large size valve, can pressure reduction before and after active balance, the convenient large size valve opened on high pressure pipe line, when small-bore pipeline aperture be large-scale ball valve import and export pipeline aperture 1 to nine/7th/for the moment, the working effect of site operation personnel is best.
Accompanying drawing explanation
Fig. 1 is structural representation of the present utility model.
Embodiment
Implement to be further described to the utility model below in conjunction with accompanying drawing, following examples are descriptive, are not determinate, can not limit protection domain of the present utility model with this.
A kind of pressure equaliser on high pressure gas pipeline large size valve, as shown in Figure 1, comprise the outlet conduit 3 of large-scale ball valve inlet pipeline 1, large-scale ball valve 2, large-scale ball valve, innovative point of the present utility model is by a small-bore pipeline small-bore release valve ball 4 in parallel on the inlet pipeline and outlet conduit at large-scale ball valve two ends.
In concrete enforcement of the present utility model, for inlet pipeline and outlet conduit that specification is φ 480 × 12mm, the large-scale ball valve model selected is Q347F-600LB DN450, now, the model of release valve ball adopts Q47F-600LB DN50, that is, φ 60mm can be selected in the aperture of described small-bore pipeline, small-bore pipeline aperture is that large-scale ball valve imports and exports 1/1 to nine/7th of pipeline aperture, only have the small-bore pipeline adopting this ratio, during operation, pressure equaliser effect is best.
Working principle
When the utility model pressure equaliser runs, first slowly open bypass small ball, to reduce pressure reduction before and after large-scale ball valve, reduce moment, and then slowly open large-scale ball valve.
Claims (2)
1. the pressure equaliser on high pressure gas pipeline large size valve, comprise the outlet conduit of large-scale ball valve inlet pipeline, large-scale ball valve, large-scale ball valve, it is characterized in that: by a small-bore pipeline small-bore release valve ball in parallel on the inlet pipeline and outlet conduit at large-scale ball valve two ends, the aperture of described small-bore pipeline is that large-scale ball valve imports and exports 1/1 to nine/7th of pipeline aperture.
2. the pressure equaliser on high pressure gas pipeline large size valve according to claim 1, it is characterized in that: the large-scale ball valve being φ 480 × 12mm for specification imports and exports pipeline, the large-scale ball valve model selected is Q347F-600LB DN450, now, the model of release valve ball adopts Q47F-600LB DN50.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420644248.7U CN204226777U (en) | 2014-10-31 | 2014-10-31 | Pressure equaliser on high pressure gas pipeline large size valve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420644248.7U CN204226777U (en) | 2014-10-31 | 2014-10-31 | Pressure equaliser on high pressure gas pipeline large size valve |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204226777U true CN204226777U (en) | 2015-03-25 |
Family
ID=52924875
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420644248.7U Expired - Fee Related CN204226777U (en) | 2014-10-31 | 2014-10-31 | Pressure equaliser on high pressure gas pipeline large size valve |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN204226777U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109000004A (en) * | 2018-09-11 | 2018-12-14 | 铜陵爱阀科技有限公司 | A kind of capable of measuring flow pressure-adjusting type gate valve |
-
2014
- 2014-10-31 CN CN201420644248.7U patent/CN204226777U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109000004A (en) * | 2018-09-11 | 2018-12-14 | 铜陵爱阀科技有限公司 | A kind of capable of measuring flow pressure-adjusting type gate valve |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20150325 Termination date: 20161031 |