CN204328473U - A kind of valve integrated device of liquefied natural gas (LNG) tank - Google Patents
A kind of valve integrated device of liquefied natural gas (LNG) tank Download PDFInfo
- Publication number
- CN204328473U CN204328473U CN201420699125.3U CN201420699125U CN204328473U CN 204328473 U CN204328473 U CN 204328473U CN 201420699125 U CN201420699125 U CN 201420699125U CN 204328473 U CN204328473 U CN 204328473U
- Authority
- CN
- China
- Prior art keywords
- valve
- storage tank
- pipeline
- cryogenic globe
- globe valve
- Prior art date
- 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.)
- Expired - Fee Related
Links
- 239000003949 liquefied natural gas Substances 0.000 title claims abstract description 32
- 239000007788 liquid Substances 0.000 claims abstract description 36
- 239000007789 gas Substances 0.000 claims abstract description 21
- 239000012071 phase Substances 0.000 claims abstract description 20
- 238000007599 discharging Methods 0.000 claims abstract description 13
- 239000007791 liquid phase Substances 0.000 claims abstract description 7
- 239000012530 fluid Substances 0.000 abstract description 2
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 abstract 1
- 230000007812 deficiency Effects 0.000 description 1
- 238000002309 gasification Methods 0.000 description 1
- 238000012423 maintenance Methods 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 239000011435 rock Substances 0.000 description 1
- 230000007306 turnover Effects 0.000 description 1
- 239000002699 waste material Substances 0.000 description 1
Landscapes
- Filling Or Discharging Of Gas Storage Vessels (AREA)
Abstract
The utility model relates to a kind of valve integrated device of liquefied natural gas (LNG) tank, this device comprises the liquid entering hole in left side, remove storage tank supercharging liquid phase mouth and liquid outlet, comprise the BOG outlet on right side, storage tank supercharging gas phase mouth and discharging opening, comprise the storage tank gas phase mouth on top, storage tank liquid outlet, liquid entering hole on liquid entering hole and storage tank under storage tank, the cryogenic globe valve connected by pipeline between each apparatus function mouth, pneumatic emergency cut-off valve, safety valve and low-temperature reduced-pressure modulating valve form storage tank fluid pipeline respectively, storage tank pressure piping, BOG pipeline, storage tank water influent pipeline and diffuse pipeline.The utility model device solves near storage tank, and station control valve too disperses, and brings the present situation of serious inconvenience to operation, station control valve is integrated and is convenient to control, and greatly reduces misoperation and the loss that causes and risk.
Description
Technical field
The utility model belongs to the application apparatus of liquefied natural gas (LNG) tank, the control gear of storage tank turnover rock gas in the LNG Liquefied natural gas station that particularly, function many for equipment is many, specifically a kind of valve integrated device of liquefied natural gas (LNG) tank.
Background technique
LNG Liquefied natural gas station exists that floor space is large, valve quantity is many, valve kind is many, the equal factor of pipeline space structure, especially near storage tank, station control valve too disperses, serious inconvenience is brought to operation, to such an extent as to there will be the too late phenomenon of switch valve, cause a large amount of waste even to occur serious accident.
Summary of the invention
The purpose of this utility model is for the deficiencies in the prior art, and proposes a kind of valve integrated device of liquefied natural gas (LNG) tank.
The utility model solves its technical problem and takes following technological scheme to realize:
A kind of valve integrated device of liquefied natural gas (LNG) tank, comprise the liquid entering hole in left side, remove storage tank supercharging liquid phase mouth and liquid outlet, comprise the BOG outlet on right side, storage tank supercharging gas phase mouth and discharging opening, to comprise under the storage tank gas phase mouth on top, storage tank liquid outlet, storage tank liquid entering hole on liquid entering hole and storage tank;
Liquid entering hole is by pipeline serial connection cryogenic globe valve E and pneumatic emergency cut-off valve R, the output of pneumatic emergency cut-off valve R, corresponding with liquid entering hole under liquid entering hole on storage tank and storage tank respectively by being provided with cryogenic globe valve S and being provided with the parallel pipeline of cryogenic globe valve T, the left side pipeline of pneumatic emergency cut-off valve R connects be connected in series with safety valve H by cryogenic globe valve G pipeline, on the right side pipeline of pneumatic emergency cut-off valve R, be connected the pipeline be connected in series by cryogenic globe valve U and safety valve V, safety valve H and safety valve V is all corresponding with discharging opening by diffuse channel;
The right side pipeline of cryogenic globe valve E is connected with cryogenic globe valve F, and the other end correspondence of cryogenic globe valve F removes storage tank supercharging liquid phase mouth;
The cryogenic globe valve B that liquid outlet is connected in series by pipeline and pneumatic emergency cut-off valve A is corresponding with storage tank liquid outlet, simultaneously, pipeline between cryogenic globe valve B and pneumatic emergency cut-off valve A is connected with the pipeline be connected in series by cryogenic globe valve C and safety valve D, the emptying end of safety valve D is corresponding with discharging opening by diffuse channel;
Storage tank gas phase mouth, the pipeline consisted of the cryogenic globe valve J that connected by cryogenic globe valve L low-temperature reduced-pressure modulating valve in parallel K exports corresponding with BOG;
Storage tank gas phase mouth is corresponding with storage tank supercharging gas phase mouth by the pipeline connecting cryogenic globe valve I;
Storage tank gas phase mouth, respectively by cryogenic globe valve Q, is connected in series the pipeline of safety valve P and the pipeline by cryogenic globe valve M serial connection safety valve N by cryogenic globe valve O, corresponding with discharging opening after being aggregated into diffuse channel.
And described all pneumatic emergency cut-off valves all adopt bass special DN50PN40 low temperature pneumatic emergency cut-off valve, all safety valves all adopt bass special CWF/CWT series low temperature Fall lift safety valve; Low-temperature reduced-pressure modulating valve adopts bass special DN40PN40 low-temperature reduced-pressure modulating valve, and all cryogenic globe valve all adopt DJ61F-40P low temperature long handle stop valve.
Advantage of the present utility model and good effect are:
1, the utility model device solves near storage tank, and station control valve too disperses, and brings the present situation of serious inconvenience to operation, station control valve is integrated and is convenient to control, and greatly reduces misoperation and the loss that causes and risk.
2, the utility model structure is simple, cost is low, it is little, simple to operate, safe and reliable to operation to take up an area, can simplify to LNG station particularly Large LNG station operation maintenance operation.
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 valve integrated device of liquefied natural gas (LNG) tank, as shown in Figure 1, comprise the liquid entering hole 1 in left side, remove storage tank supercharging liquid phase mouth 2 and liquid outlet 3, comprise the BOG outlet 4 on right side, storage tank supercharging gas phase mouth 5 and discharging opening 6, to comprise under the storage tank gas phase mouth 7 on top, storage tank liquid outlet 8, storage tank liquid entering hole 10 on liquid entering hole 9 and storage tank;
Liquid entering hole is by pipeline serial connection cryogenic globe valve E and pneumatic emergency cut-off valve R, the output of pneumatic emergency cut-off valve R, corresponding with liquid entering hole under liquid entering hole on storage tank and storage tank respectively by being provided with cryogenic globe valve S and being provided with the parallel pipeline of cryogenic globe valve T, the left side pipeline of pneumatic emergency cut-off valve R connects be connected in series with safety valve H by cryogenic globe valve G pipeline, on the right side pipeline of pneumatic emergency cut-off valve R, be connected the pipeline be connected in series by cryogenic globe valve U and safety valve V, safety valve H and safety valve V is all corresponding with discharging opening by diffuse channel;
The right side pipeline of cryogenic globe valve E is connected with cryogenic globe valve F, and the other end correspondence of cryogenic globe valve F removes storage tank supercharging liquid phase mouth;
The cryogenic globe valve B that liquid outlet is connected in series by pipeline and pneumatic emergency cut-off valve A is corresponding with storage tank liquid outlet, simultaneously, pipeline between cryogenic globe valve B and pneumatic emergency cut-off valve A is connected with the pipeline be connected in series by cryogenic globe valve C and safety valve D, the emptying end of safety valve D is corresponding with discharging opening by diffuse channel;
Storage tank gas phase mouth, the pipeline consisted of the cryogenic globe valve J that connected by cryogenic globe valve L low-temperature reduced-pressure modulating valve in parallel K exports corresponding with BOG;
Storage tank gas phase mouth is corresponding with storage tank supercharging gas phase mouth by the pipeline connecting cryogenic globe valve I;
Storage tank gas phase mouth, respectively by cryogenic globe valve Q, is connected in series the pipeline of safety valve P and the pipeline by cryogenic globe valve M serial connection safety valve N by cryogenic globe valve O, corresponding with discharging opening after being aggregated into diffuse channel.
In concrete enforcement of the present utility model, pneumatic emergency cut-off valve adopts bass special DN50PN40 low temperature pneumatic emergency cut-off valve, safety adopts bass special CWF/CWT series low temperature Fall lift safety valve, low-temperature reduced-pressure modulating valve adopts bass special DN40PN40 low-temperature reduced-pressure modulating valve, and cryogenic globe valve adopts domestic river empty DJ61F-40P low temperature long handle stop valve.Practice shows, effect is good.
Working principle
This device security valve bottom valve (cryogenic globe valve C, cryogenic globe valve G, cryogenic globe valve M, cryogenic globe valve O, cryogenic globe valve U) is all in normally open.
Storage tank supercharging: cryogenic globe valve I is in open mode when carrying out blower operations to storage tank, other valves (not comprising safety valve bottom valve) are in closed condition.Slowly open cryogenic globe valve E, cryogenic globe valve F, make LNG Liquefied natural gas by 1 mouthful by 2 mouthfuls of inflow pressurized machines, after gasification, flow into storage tank to storage tank supercharging by 5 mouthfuls.
Storage tank fluid: open pneumatic emergency cut-off valve A, slowly opens cryogenic globe valve B and makes LNG Liquefied natural gas flow out supply downstream pipe network from storage tank.
Storage tank feed liquor: cryogenic globe valve F is in closed condition, slowly opens cryogenic globe valve E, and the storage tank liquid entering hole according to selecting opens cryogenic globe valve S or cryogenic globe valve T.Open pneumatic emergency cut-off valve R, make LNG Liquefied natural gas flow into storage tank from 1 mouthful by 9 mouthfuls or 10 mouthfuls.
BOG utilizes: cryogenic globe valve I is in closed condition.BOG pressure needed for pressure of storage tank and downstream, select by the direct air feed of cryogenic globe valve L or by low-temperature reduced-pressure modulating valve K, cryogenic globe valve J to downstream air feed.
Claims (2)
1. the valve integrated device of a liquefied natural gas (LNG) tank, it is characterized in that: comprise the liquid entering hole in left side, remove storage tank supercharging liquid phase mouth and liquid outlet, comprise the BOG outlet on right side, storage tank supercharging gas phase mouth and discharging opening, to comprise under the storage tank gas phase mouth on top, storage tank liquid outlet, storage tank liquid entering hole on liquid entering hole and storage tank;
Liquid entering hole is by pipeline serial connection cryogenic globe valve E and pneumatic emergency cut-off valve R, the output of pneumatic emergency cut-off valve R, corresponding with liquid entering hole under liquid entering hole on storage tank and storage tank respectively by being provided with cryogenic globe valve S and being provided with the parallel pipeline of cryogenic globe valve T, the left side pipeline of pneumatic emergency cut-off valve R connects be connected in series with safety valve H by cryogenic globe valve G pipeline, on the right side pipeline of pneumatic emergency cut-off valve R, be connected the pipeline be connected in series by cryogenic globe valve U and safety valve V, safety valve H and safety valve V is all corresponding with discharging opening by diffuse channel;
The right side pipeline of cryogenic globe valve E is connected with cryogenic globe valve F, and the other end correspondence of cryogenic globe valve F removes storage tank supercharging liquid phase mouth;
The cryogenic globe valve B that liquid outlet is connected in series by pipeline and pneumatic emergency cut-off valve A is corresponding with storage tank liquid outlet, simultaneously, pipeline between cryogenic globe valve B and pneumatic emergency cut-off valve A is connected with the pipeline be connected in series by cryogenic globe valve C and safety valve D, the emptying end of safety valve D is corresponding with discharging opening by diffuse channel;
Storage tank gas phase mouth, the pipeline consisted of the cryogenic globe valve J that connected by cryogenic globe valve L low-temperature reduced-pressure modulating valve in parallel K exports corresponding with BOG;
Storage tank gas phase mouth is corresponding with storage tank supercharging gas phase mouth by the pipeline connecting cryogenic globe valve I;
Storage tank gas phase mouth, respectively by cryogenic globe valve Q, is connected in series the pipeline of safety valve P and the pipeline by cryogenic globe valve M serial connection safety valve N by cryogenic globe valve O, corresponding with discharging opening after being aggregated into diffuse channel.
2. the valve integrated device of liquefied natural gas (LNG) tank according to claim 1, it is characterized in that: described all pneumatic emergency cut-off valves all adopt bass special DN50PN40 low temperature pneumatic emergency cut-off valve, all safety valves all adopt bass special CWF/CWT series low temperature Fall lift safety valve; Low-temperature reduced-pressure modulating valve adopts bass special DN40PN40 low-temperature reduced-pressure modulating valve, and all cryogenic globe valve all adopt DJ61F-40P low temperature long handle stop valve.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420699125.3U CN204328473U (en) | 2014-11-20 | 2014-11-20 | A kind of valve integrated device of liquefied natural gas (LNG) tank |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420699125.3U CN204328473U (en) | 2014-11-20 | 2014-11-20 | A kind of valve integrated device of liquefied natural gas (LNG) tank |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204328473U true CN204328473U (en) | 2015-05-13 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420699125.3U Expired - Fee Related CN204328473U (en) | 2014-11-20 | 2014-11-20 | A kind of valve integrated device of liquefied natural gas (LNG) tank |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN204328473U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112197170A (en) * | 2020-10-22 | 2021-01-08 | 长春燃气热力设计研究院有限责任公司 | An LNG gasification station low temperature storage tank interface valve group system |
-
2014
- 2014-11-20 CN CN201420699125.3U patent/CN204328473U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112197170A (en) * | 2020-10-22 | 2021-01-08 | 长春燃气热力设计研究院有限责任公司 | An LNG gasification station low temperature storage tank interface valve group system |
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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 |
Granted publication date: 20150513 Termination date: 20161120 |
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| CF01 | Termination of patent right due to non-payment of annual fee |