CN204254245U - A kind of LNG low temperature immersed pump and the skid of filling device one - Google Patents
A kind of LNG low temperature immersed pump and the skid of filling device one Download PDFInfo
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- CN204254245U CN204254245U CN201420587150.2U CN201420587150U CN204254245U CN 204254245 U CN204254245 U CN 204254245U CN 201420587150 U CN201420587150 U CN 201420587150U CN 204254245 U CN204254245 U CN 204254245U
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- low temperature
- lng
- immersed pump
- temperature immersed
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Abstract
The purpose of this utility model is to provide a kind of LNG low temperature immersed pump and the skid of filling device one, realize cryogenic liquid conveying, fill, while the function such as metering, reduce occupation area of equipment, decrease the workload of field fabrication, installation, in addition, the slower technical problem of air-heating type gasifier supercharging can also be solved; By shortening pipeline, effectively solve the present situation producing a large amount of BOG gas; By rational deployment, make the fire-protection distance between equipment reach the required standard of country, reduce input cost, increase the benefit.
Description
Technical field
The utility model relates to LNGV (liquefied natural gas vehicle) filling gas station equipment field, particularly a kind of LNG low temperature immersed pump and the skid of filling device one.
Technical background
The construction aspect of LNGV (liquefied natural gas vehicle) gas station, for cost-saving, reduce the completion time of project, often adopts skid-mounted gas filling station.But at skid-mounted gas filling station in use, air-heating type gasifier pumping rate is slower; In liquid feeding process because with external environment generation heat trnasfer, cause LNG Liquefied natural gas to have certain intensification, and produce BOG gas, produce the more wasting of resources.In addition, in conventional integrated type skid-mounted equipment, the distance between LNG immersed pump pond and LNG filling device does not often reach 4 meters, lower than the minimum fire separation of national regulation.
Summary of the invention
The purpose of this utility model is to provide a kind of LNG low temperature immersed pump and the skid of LNG filling device one, the shortcomings such as existing equipment supercharging is slow, waste is many, inconvenience installation that it can solve.
The utility model to achieve these goals, is achieved through the following technical solutions:
A kind of LNG low temperature immersed pump and the skid of filling device one, comprise low temperature immersed pump, air-heating type gasifier, LNG filling machine, prying body framework, sled interior conduit, LNG filling machine is arranged in prying body framework, air-heating type gasifier is between low temperature immersed pump and LNG filling machine, and the fire safety distance of described LNG immersed pump pond and LNG filling machine is greater than 4m; Water influent pipeline above and/or under being provided with between low temperature immersed pump and low-temperature storage tank, above and/or under described, water influent pipeline is provided with the arm be connected with air-heating type gasifier, described arm is provided with low temperature Emergeny Cutoff Valves.
Described LNG low temperature immersed pump outlet is connected with Austenitic stainless steel pipe, and described Stainless Steel Tube extends to the bottom of described air-heating type gasifier, is connected with LNG filling machine by vacuum hose, and the internal diameter of described vacuum hose is 25mm.
Described sled interior conduit adopts vacuum hose.
In above-mentioned LNG low temperature immersed pump and the skid of filling device one, LNG Liquefied natural gas utilizes pressure to flow automatically supercharging or the supercharging of low temperature immersed pump forced gasification.
The utility model beneficial effect:
1. in the up and down water influent pipeline of low temperature immersed pump to low-temperature storage tank (external equipment), increase an arm be connected with air-heating type gasifier, centre is provided with low temperature Emergeny Cutoff Valves; Optimize pipe-line layout, make cryogenic pipe reach the shortest trend, optimize the device layout of prying body lower portion and make equipment meet the requirement of " automobile fuel filler gas filling station design and job specfication " (GB50156-2012) interior fire safety spacing.
2. the utility model passes through rational deployment, equipment is combined into one formula, in cost, by shortening cryogenic pipe, when LNG is flow through in pipeline, decrease the heat absorbed from environment, thus decrease the generation of BOG gas, will less close to half compared with the production of BOG gas in market device, and the shortening of pipeline also reduces the cost of pipeline; In satisfying the demands, integrated equipment floor space is little, and the installation of most of pipeline completes when mounting equipment, saves the work on the spot amount of installation personnel, and more convenient installation; In normative, the equipment on market can not ensure to meet the fire safety required distance that GB50156 standard specifies completely, and this equipment can ensure completely; In performance, by shortening pipeline, media flow distance can be saved, more efficiently.
Accompanying drawing explanation
Fig. 1 is schematic layout pattern of the present utility model.
Wherein, 1LNG low temperature immersed pump 2 air-heating type gasifier 3 vacuum hose 4LNG filling machine 5 slave station cabinet 6 instrument wind cabinet 7 arm 8 low temperature Emergeny Cutoff Valves 9 skid framework 10 instrument airduct
Embodiment
The utility model is described in further detail for contrast accompanying drawing:
A kind of LNG low temperature immersed pump of the utility model and the skid of filling device one, comprise low temperature immersed pump 1, pump pond, air-heating type gasifier 2, LNG filling machine 4, prying body framework 9, sled interior conduit 3, instrument airduct 10, slave station cabinet 5, instrument wind cabinet 6, LNG filling machine 4 is arranged in prying body framework 9, and air-heating type gasifier is between low temperature immersed pump 1 and LNG filling machine 4; Be provided with up/down water influent pipeline between low temperature immersed pump and low-temperature storage tank, described up/down water influent pipeline is provided with the arm 7 be connected with air-heating type gasifier 2, and described arm 7 is provided with low temperature Emergeny Cutoff Valves.
Described LNG low temperature immersed pump 1 outlet is connected with Austenitic stainless steel pipe, and described Stainless Steel Tube extends to the bottom of described air-heating type gasifier 3, is that the vacuum hose of 25mm is connected with LNG filling machine 4 by internal diameter.
In the water influent pipeline up and down of LNG low temperature immersed pump 1 to low-temperature storage tank (external equipment), increase an arm 7 be connected with air-heating type gasifier 2, centre is provided with low temperature Emergeny Cutoff Valves 8.Like this, can, effect slow in air-heating type gasifier 2 supercharging bad time, start low temperature immersed pump 1, control the unlatching of low temperature Emergeny Cutoff Valves 8 simultaneously, LNG is forced to inject air-heating type gasifier 2, forces Quick-pressurizing;
Raise the supporting leg of air-heating type gasifier 2, LNG low temperature immersed pump 1 exports the bottom being extended to air-heating type gasifier 3 by Austenitic stainless steel pipe, then be connected with LNG filling machine 4 by the high vacuum flexible pipe 3 of DN25, so both left the space of installing Subzero valve, shorten cryogenic pipe length to greatest extent again, reduce from environment heat absorption, decrease the generation of BOG;
Explicitly call in " automobile fuel filler gas filling station design and job specfication " (GB50156-2012), LNG immersed pump pond 1 is 4m with the fire safety distance of LNG filling machine 4, this kind of one skid mounted equipment, by air-heating type gasifier 2 being placed between LNG low temperature immersed pump 1 and LNG filling machine 4, rationalize layout, meet the requirement of specification.
By reference to the accompanying drawings embodiment of the present utility model is described although above-mentioned; but the restriction not to the utility model protection domain; one of ordinary skill in the art should be understood that; on the basis of the technical solution of the utility model, those skilled in the art do not need to pay various amendment or distortion that creative work can make still within protection domain of the present utility model.
Claims (5)
1. a LNG low temperature immersed pump and the skid of filling device one, comprise low temperature immersed pump, air-heating type gasifier, LNG filling machine, prying body framework, sled interior conduit, LNG filling machine is arranged in prying body framework, air-heating type gasifier is between low temperature immersed pump and LNG filling machine, and the fire safety distance of described LNG immersed pump pond and LNG filling machine is greater than 4m; Water influent pipeline above and/or under being provided with between low temperature immersed pump and low-temperature storage tank, above and/or under described, water influent pipeline is provided with the arm be connected with air-heating type gasifier, described arm is provided with low temperature Emergeny Cutoff Valves.
2. LNG low temperature immersed pump according to claim 1 and the skid of filling device one, it is characterized in that: described LNG low temperature immersed pump outlet is connected with Austenitic stainless steel pipe, described Stainless Steel Tube extends to the bottom of described air-heating type gasifier, is connected with LNG filling machine by vacuum hose.
3. LNG low temperature immersed pump according to claim 1 and the skid of filling device one, is characterized in that: described sled interior conduit adopts vacuum hose.
4. LNG low temperature immersed pump according to claim 1 and the skid of filling device one, is characterized in that: LNG Liquefied natural gas utilizes pressure gravity flow supercharging or the supercharging of low temperature immersed pump forced gasification.
5. LNG low temperature immersed pump according to claim 2 and the skid of filling device one, is characterized in that: the internal diameter of described vacuum hose is 25mm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420587150.2U CN204254245U (en) | 2014-10-11 | 2014-10-11 | A kind of LNG low temperature immersed pump and the skid of filling device one |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420587150.2U CN204254245U (en) | 2014-10-11 | 2014-10-11 | A kind of LNG low temperature immersed pump and the skid of filling device one |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204254245U true CN204254245U (en) | 2015-04-08 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420587150.2U Active CN204254245U (en) | 2014-10-11 | 2014-10-11 | A kind of LNG low temperature immersed pump and the skid of filling device one |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN204254245U (en) |
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2014
- 2014-10-11 CN CN201420587150.2U patent/CN204254245U/en active Active
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| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant |