CN204127649U - The box LNG dispenser pump sled of a kind of overall vacuum - Google Patents
The box LNG dispenser pump sled of a kind of overall vacuum Download PDFInfo
- Publication number
- CN204127649U CN204127649U CN201420423921.4U CN201420423921U CN204127649U CN 204127649 U CN204127649 U CN 204127649U CN 201420423921 U CN201420423921 U CN 201420423921U CN 204127649 U CN204127649 U CN 204127649U
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- China
- Prior art keywords
- low temperature
- overall vacuum
- pump
- cutoff valves
- vacuum case
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Abstract
The utility model provides a kind of overall vacuum box LNG dispenser pump sled, comprise overall vacuum case, the inner vertical of described overall vacuum case arranges the pump pond of stainless steel low temperature, low temperature immersed pump is placed in pump pond, the side of overall vacuum case connects some vacuumizing and regulates, and adiabatic material is filled in overall vacuum case inside.The advantage that the utility model has and good effect are: automatically switch by low temperature pneumatic emergency cut-off valve, meet the different applying working condition requirement of user; Whole pump sled comprise pump pond, low temperature pneumatic emergency cut-off valve and connecting tube etc. almost all low-temperature components be all placed in overall vacuum case, manufacture simple, cold insulation Be very effective, reduce artificial and cost of equipment maintenance.
Description
Technical field
The utility model belongs to liquefied natural gas filling station equipment technical field, especially relates to the box LNG dispenser pump sled of a kind of overall vacuum.
Background technique
Rock gas is the emerging energy of clean and effective, its clear superiority of natural gas, because, current LNG (LNG Liquefied natural gas) automobile widely uses, LNG is utilized to be all large-scale heavy card and inter-provincial long-distance big bus as fuel, course continuation mileage is long, and fuel consumption is large, and after changing fuel, environment benefits and economic gains is more obvious, so LNG (LNG Liquefied natural gas) automobile filling station is built on a large scale, LNG (LNG Liquefied natural gas) automobile quantity is also come more.
In the prior art, LNG dispenser pump sled all possesses LNG and unloads, storage tank supercharging, return-air, LNG supercharging, by fundamental functions such as filling device liquid feedings, cryogenic pump sump is only had to be vacuum box structure, connecting tube and valve are all vacuum tube structures, and vacuum tube inside must arrange flexible connection structure and resist expanding with heat and contract with cold of cryogenic piping.The vacuum box structure complex structure of above-mentioned cryogenic pump sump, every bar pipeline independently vacuumizes, and operation is loaded down with trivial details, and after pipeline connects, do not have the interface position of vacuum tube cold insulation also to need insulation, workload is large, and equipment unsightly.
Model utility content
Problem to be solved in the utility model is to provide the box LNG dispenser pump sled of a kind of easy to operate overall vacuum.
For solving the problems of the technologies described above, the technical solution adopted in the utility model is:
The box LNG dispenser pump sled of a kind of overall vacuum, comprise overall vacuum case, the inner vertical of described overall vacuum case arranges the pump pond of stainless steel low temperature, places low temperature immersed pump in pump pond, the side of overall vacuum case connects some vacuumizing and regulates, and adiabatic material is filled in overall vacuum case inside;
Be provided with liquid inlet pipe below described pump pond, top is provided with muffler, and bottom is provided with drain pipe; Described liquid inlet pipe front is connected with low temperature Emergeny Cutoff Valves one, and low temperature Emergeny Cutoff Valves one front is connected storage tank liquid outlet joint respectively by a threeway, connected tank car liquid outlet joint by low temperature Emergeny Cutoff Valves two and connects pressurized machine liquid inlet pipe joint by low temperature Emergeny Cutoff Valves three; Described muffler connects storage tank gas phase pipe joint by low temperature Emergeny Cutoff Valves four, and overall vacuum case is extended in the outlet side of described storage tank gas phase pipe joint;
The outlet of described low temperature immersed pump is exported from top, pump pond by stainless steel immersed pump fluid pipe nipple, immersed pump drain pipe is connected afterwards by drain pipe flange spool, overall vacuum case is entered by immersed pump drain pipe, again by being divided into two-way by threeway after low temperature safety check, low temperature Emergeny Cutoff Valves five of leading up to connects storage tank liquid inlet pipe joint, and low temperature Emergeny Cutoff Valves six of leading up to connects LNG filling device joint.
Preferably, pearlife powder is filled in described overall vacuum case inside.
Preferably, top, described pump pond is fixedly connected with overall vacuum case by vacuum flange.
Preferably, described liquid inlet pipe, muffler, immersed pump drain pipe are bend pipe structure.
Preferably, described low temperature Emergeny Cutoff Valves one to low temperature Emergeny Cutoff Valves six is vacuum type cold insulation structure.
Preferably, described overall vacuum case is arranged on a stainless steel stent.
The advantage that the utility model has and good effect are:
The utility model can realize that LNG unloads, storage tank supercharging, return-air, LNG supercharging by fundamental functions such as filling device liquid feedings, automatically switch by low temperature pneumatic emergency cut-off valve, meet the different applying working condition requirement of user;
Whole pump sled comprise pump pond, low temperature pneumatic emergency cut-off valve and connecting tube etc. almost all low-temperature components be all placed in overall vacuum case, manufacture simple, cold insulation Be very effective, reduce artificial and cost of equipment maintenance;
Overall vacuum case adopts pearlife powder fill and vacuumize mode, vacuum box both sides are provided with two and vacuumize and regulate easy-to-operat, degree of vacuum can reach 10-3pa, guarantees overall cold insulation performance, and cold insulation ability is not less than the cold insulation form that conventional vacuum pump pond adds vacuum pipe combination;
Low temperature immersed pump is arranged in stainless steel pump pond, and pump pond relies on overall vacuum case cold insulation, and pump pond overhead vacuum flange can be opened, and repair and replacement immersed pump does not destroy vacuum box, thus ensures that overall vacuum case cold insulation performance can not reduce;
All low temperature Emergeny Cutoff Valvess are vacuum type cold insulation structure, meet the designing requirement of overall overall vacuum case, can on-line maintenance, change easily damaged parts, do not affect the degree of vacuum of overall vacuum case, thus ensure that vacuum box cold insulation performance can not reduce;
All external stainless steel pipeline all eject overall vacuum case 100mm, welding ends can directly weld with external pipe, vacuum box internal pipeline adopts bent-tube boiler structure, resist pump pond and cryogenic piping to expand with heat and contract with cold the micro-deformation caused, guarantee not destroy overall vacuum case, device manufacturing process is simple, and cost reduces, easy to operate, rational in infrastructure.
Accompanying drawing explanation
Fig. 1 is structural representation of the present utility model.
In figure:
1, stainless steel stent 2, overall vacuum case 3, pearlife powder 4, pump pond 5, low temperature immersed pump 6, drain pipe 7, liquid inlet pipe 8, low temperature Emergeny Cutoff Valves 1, storage tank liquid outlet joint 10, low temperature Emergeny Cutoff Valves 2 11, tank car liquid outlet joint 12, low temperature Emergeny Cutoff Valves 3 13, pressurized machine liquid inlet pipe joint 14, muffler 15, low temperature Emergeny Cutoff Valves 4 16, storage tank gas phase pipe joint 17, immersed pump fluid pipe nipple 18, drain pipe flange spool 19, immersed pump drain pipe 20, low temperature safety check 21, low temperature Emergeny Cutoff Valves 5 22, storage tank liquid inlet pipe joint 23, low temperature Emergeny Cutoff Valves 6 24, LNG filling device joint 25, vacuumize and regulate
Embodiment
Below in conjunction with accompanying drawing, specific embodiment of the utility model is elaborated.
The box LNG dispenser pump sled of a kind of overall vacuum, as shown in Figure 1, comprise overall vacuum case 2, the inner vertical of described overall vacuum case 2 arranges the pump pond 4 of stainless steel low temperature, place low temperature immersed pump 5 in pump pond 4, the side of overall vacuum case 2 connects two and vacuumizes and regulate 25;
Be provided with liquid inlet pipe 7 below described pump pond 4, top is provided with muffler 14, and bottom is provided with drain pipe (6); Described liquid inlet pipe 7 front is connected with low temperature Emergeny Cutoff Valves 1, and low temperature Emergeny Cutoff Valves 1 front is connected storage tank liquid outlet joint 9 respectively by a threeway, connected tank car liquid outlet joint 11 by low temperature Emergeny Cutoff Valves 2 10 and connects pressurized machine liquid inlet pipe joint 13 by low temperature Emergeny Cutoff Valves 3 12; Described muffler 14 connects storage tank gas phase pipe joint 16 by low temperature Emergeny Cutoff Valves 4 15, and overall vacuum case 2 is extended in the outlet side of described storage tank gas phase pipe joint 16;
The outlet of described low temperature immersed pump 5 is exported from top, pump pond 4 by stainless immersed pump fluid pipe nipple 17, immersed pump drain pipe 19 is connected afterwards by drain pipe flange spool 18, overall vacuum case 2 is entered by immersed pump drain pipe 19, again by being divided into two-way by threeway after low temperature safety check 20, low temperature Emergeny Cutoff Valves 5 21 of leading up to connects storage tank liquid inlet pipe joint 22, and low temperature Emergeny Cutoff Valves 6 23 of leading up to connects LNG filling device joint 24.
In order to obtain better effect of heat insulation, pearlife powder 3 is filled in described overall vacuum case inside.
In order to repair and replacement immersed pump does not destroy overall vacuum case 2, thus ensure that overall vacuum case 2 cold insulation performance can not reduce, top, described pump pond 4 is fixedly connected with overall vacuum case 2 by vacuum flange.
In order to prevent the micro-deformation caused that expands with heat and contract with cold, the pipeline of overall vacuum case 2 inside such as described liquid inlet pipe 7, muffler 14, immersed pump drain pipe 19 is bend pipe structure.
In order to realize on-line maintenance, change easily damaged parts, do not affect the degree of vacuum of overall vacuum case, described low temperature Emergeny Cutoff Valves 18 to low temperature Emergeny Cutoff Valves 6 23 is vacuum type cold insulation structure.
Described overall vacuum case 2 to be arranged on a stainless steel stent 1, easy to use.
The working procedure of the present embodiment is as follows:
When LNG unloads, in tank car, liquid enters low temperature Emergeny Cutoff Valves 2 10 and low temperature Emergeny Cutoff Valves 1 by tank car liquid outlet joint 11, and the liquid inlet pipe 7 through pump pond 4 enters pump pond 4; Low temperature immersed pump 5 starts function of increasing pressure, LNG liquid enters storage tank through immersed pump fluid pipe nipple 17, drain pipe flange spool 18, low temperature safety check 20, low temperature Emergeny Cutoff Valves 5 21 and storage tank liquid inlet pipe joint 22 successively, is connected pressurized machine to tank car supercharging by low temperature Emergeny Cutoff Valves 3 12 with pressurized machine liquid inlet pipe joint 13 simultaneously; During storage tank supercharging, be connected pressurized machine to storage tank supercharging by low temperature Emergeny Cutoff Valves 3 12 with pressurized machine liquid inlet pipe joint 13; During return-air, in pump pond 4, cryogenic gas flows into storage tank gas-phase space by the muffler 14 in pump pond 4, low temperature Emergeny Cutoff Valves 4 15 and storage tank gas phase pipe joint 16; LNG supercharging enters cryogenic pump sump 4 by storage tank by storage tank liquid outlet joint 9, low temperature Emergeny Cutoff Valves 1 by LNG during filling device liquid feeding, be conveyed into filling device through immersed pump fluid pipe nipple 17, drain pipe flange spool 18, low temperature safety check 20, low temperature Emergeny Cutoff Valves 6 23 and LNG filling device joint 24 successively after starting supercharging by low temperature immersed pump 5, thus complete to vehicle-mounted bottle liquid feeding.This apparatus and process is simple, easy to operate, rational in infrastructure, cost is low.
Above an embodiment of the present utility model has been described in detail, but described content being only preferred embodiment of the present utility model, can not being considered to for limiting practical range of the present utility model.All equalizations done according to the utility model application range change and improve, and all should still belong within patent covering scope of the present utility model.
Claims (5)
1. the box LNG dispenser pump sled of overall vacuum, comprise overall vacuum case (2), it is characterized in that: the inner vertical of described overall vacuum case (2) arranges the pump pond (4) of stainless steel low temperature, low temperature immersed pump (5) is placed in pump pond (4), the side of overall vacuum case (2) connects some vacuumizing and regulates (25), and adiabatic material is filled in overall vacuum case (2) inside;
Described pump pond (4) below is provided with liquid inlet pipe (7), and top is provided with muffler (14), and bottom is provided with drain pipe (6); Described liquid inlet pipe (7) front is connected with low temperature Emergeny Cutoff Valves one (8), and low temperature Emergeny Cutoff Valves one (8) front is connected storage tank liquid outlet joint (9) respectively by a threeway, connected tank car liquid outlet joint (11) and connect pressurized machine liquid inlet pipe joint (13) by low temperature Emergeny Cutoff Valves three (12) by low temperature Emergeny Cutoff Valves two (10); Described muffler (14) connects storage tank gas phase pipe joint (16) by low temperature Emergeny Cutoff Valves four (15), and overall vacuum case (2) is extended in the outlet side of described storage tank gas phase pipe joint (16);
The outlet of described low temperature immersed pump (5) is exported from pump pond (4) top by stainless steel immersed pump fluid pipe nipple (17), immersed pump drain pipe (19) is connected afterwards by drain pipe flange spool (18), overall vacuum case (2) is entered by immersed pump drain pipe (19), again by being divided into two-way by threeway after low temperature safety check (20), low temperature Emergeny Cutoff Valves five (21) of leading up to connects storage tank liquid inlet pipe joint (22), and low temperature Emergeny Cutoff Valves six (23) of leading up to connects LNG filling device joint (24).
2. the box LNG dispenser pump sled of overall vacuum according to claim 1, is characterized in that: described pump pond (4) top is fixedly connected with overall vacuum case (2) by vacuum flange.
3. the box LNG dispenser pump sled of overall vacuum according to claim 1, is characterized in that: described liquid inlet pipe (7), muffler (14), immersed pump drain pipe (19) are bend pipe structure.
4. the box LNG dispenser pump sled of overall vacuum according to claim 1, is characterized in that: described low temperature Emergeny Cutoff Valves one (8) is vacuum type cold insulation structure to low temperature Emergeny Cutoff Valves six (23).
5. the box LNG dispenser pump sled of overall vacuum according to claim 1, is characterized in that: described overall vacuum case (2) is arranged on a stainless steel stent (1).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420423921.4U CN204127649U (en) | 2014-07-29 | 2014-07-29 | The box LNG dispenser pump sled of a kind of overall vacuum |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420423921.4U CN204127649U (en) | 2014-07-29 | 2014-07-29 | The box LNG dispenser pump sled of a kind of overall vacuum |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204127649U true CN204127649U (en) | 2015-01-28 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420423921.4U Expired - Fee Related CN204127649U (en) | 2014-07-29 | 2014-07-29 | The box LNG dispenser pump sled of a kind of overall vacuum |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN204127649U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107289318A (en) * | 2016-04-05 | 2017-10-24 | 张家港中集圣达因低温装备有限公司 | Cryogenic tank |
-
2014
- 2014-07-29 CN CN201420423921.4U patent/CN204127649U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107289318A (en) * | 2016-04-05 | 2017-10-24 | 张家港中集圣达因低温装备有限公司 | Cryogenic tank |
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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: 20150128 Termination date: 20150729 |
|
| EXPY | Termination of patent right or utility model |