CN204785559U - A cryogenic pump chi gai for liquified natural gas immersed pump - Google Patents
A cryogenic pump chi gai for liquified natural gas immersed pump Download PDFInfo
- Publication number
- CN204785559U CN204785559U CN201520384171.9U CN201520384171U CN204785559U CN 204785559 U CN204785559 U CN 204785559U CN 201520384171 U CN201520384171 U CN 201520384171U CN 204785559 U CN204785559 U CN 204785559U
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- CN
- China
- Prior art keywords
- cryogenic pump
- natural gas
- liquified natural
- insulation layer
- blind flange
- 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
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- Filling Or Discharging Of Gas Storage Vessels (AREA)
Abstract
The utility model relates to a cryogenic pump chi gai, especially a cryogenic pump chigai who is used for the liquified natural gas gas station. The utility model provides a cryogenic pump chi gai for liquified natural gas immersed pump, includes the blind flange edition of books physically, be provided with connection structure on the blind flange edition of books body, the blind flange edition of books body passes through connection structure with the cryogenic pump pond and is connected, the below of the blind flange edition of books body still is provided with the heat insulation layer, and the heat insulation layer setting is between the cryogenic pump pond and the blind flange edition of books body. The utility model has the advantages that: the utility model discloses a cryogenic pump chi gai for liquified natural gas immersed pump, through set up the high vacuum insulation layer under the blind flange edition of books body, LNG's direct contact department just can realize thermal -insulated cold insulation with external environment in cryogenic pump pond blind flange and the cryogenic pump pond to very big reduction the heat exchange, avoided cryogenic pump pond apron to frost.
Description
Technical field
The utility model relates to a kind of cryogenic pump sump lid, especially a kind of cryogenic pump sump lid for liquified natural gas gas station.
Background technique
In LNG (liquified natural gas) gas station, LNG (liquified natural gas) normally adopts cryogenic pump sump to store to treat aerating use, the gas that BOG is formed after referring to and being gasified by liquified natural gas.Cryogenic pump sump conventional at present all adopts vacuum structure to realize thermal insulation, but its cryogenic pump sump lid does not then possess adiabatic function, this just causes the BOG in cryogenic pump sump (referring to the gas formed after being gasified by liquified natural gas), directly contact cold draining with cryogenic pump sump lid, produce following adverse consequences: 1) the surperficial frosting of cryogenic pump sump lid, impact operation and maintenance; 2) extraneous heat can enter into cryogenic pump sump by heat exchange, impels generation and the discharge of BOG.Therefore, a kind of new technological scheme should be provided to solve the problem.
Summary of the invention
The purpose of this utility model is: for above-mentioned deficiency, provides a kind of rational in infrastructure, the cryogenic pump sump lid for liquified natural gas immersed pump that using effect is good.
For achieving the above object, the technical solution adopted in the utility model is:
A kind of cryogenic pump sump lid for liquified natural gas immersed pump, comprise flange plate body, described flange plate body is provided with linkage structure, described flange plate body is connected by linkage structure with cryogenic pump sump, the below of described flange plate body is also provided with heat insulation layer, and heat insulation layer is arranged between cryogenic pump sump and flange plate body.
Further technological scheme:
Described, linkage structure is flange.
Described heat insulation layer is vacuum heat-insulating layer.
Be provided with one between described linkage structure with flange plate body and be communicated with vacuum chamber with heat insulation layer, described vacuum chamber is provided with vacuum orifice, vacuum orifice is communicated to the upper surface of flange plate body.
Due to the application of technique scheme, the utility model compared with prior art tool has the following advantages:
Cryogenic pump sump lid for liquified natural gas immersed pump of the present utility model, by arranging vacuum heat-insulating layer under flange plate body, in cryogenic pump sump blind flange and cryogenic pump sump, the direct contacting point of LNG just can realize cold insulation with external environment, thus greatly reduce heat exchange, avoid the frosting of cryogenic pump sump cover plate.
Accompanying drawing explanation
Accompanying drawing 1 is the utility model embodiment one structural representation.
In above accompanying drawing: 1, flange plate body, 2, vacuum orifice, 3, heat insulation layer, 4, linkage structure, 5, vacuum chamber, 6, cryogenic pump sump.
Embodiment
Below in conjunction with drawings and Examples, the utility model is further described:
Embodiment one:
As shown in Figure 1, a kind of cryogenic pump sump lid for liquified natural gas immersed pump of the utility model, comprise flange plate body 1, flange plate body 1 is provided with linkage structure 4, flange plate body 1 is connected by linkage structure 4 with cryogenic pump sump 6, in the present embodiment, linkage structure 4 is flange, and linkage structure 4 need meet the standard of low-temperature (low temperature) vessel; The below of flange plate body 1 is also provided with heat insulation layer 3, and the LNG in cryogenic pump sump 6 directly contacts with heat insulation layer 3, and therefore heat insulation layer 3 is arranged between cryogenic pump sump 6 and flange plate body 1, and heat insulation layer 3 adopts thermoinsulation material to realize, such as thin al film paper.
Preferably, as an embodiment, heat insulation layer 3 is the heat insulation layer of vacuum structure.
Preferably, as an embodiment, be provided with a vacuum chamber 5 be communicated with heat insulation layer 3 between linkage structure 4 with flange plate body 1, vacuum chamber 5 be provided with vacuum orifice 2, vacuum orifice 2 is communicated to the upper surface of flange plate body 1, is convenient to like this carry out vacuum pumping.After flange plate body 1 is installed to cryogenic pump sump 6, namely the heat insulation layer 3 of vacuum structure is interposed between BOG and external environment, realizes the effect of cold insulation.The heat of external environment is difficult to enter into cryogenic pump sump 6, which reduces the generation of BOG, and the flange plate body 1 after isolated also reduces greatly with the heat exchange of BOG in cryogenic pump sump 6, therefore also there will not be the phenomenon of frosting.
Above-described embodiment, only for technical conceive of the present utility model and feature are described, its object is to person skilled in the art can be understood content of the present utility model and implement according to this, can not limit protection domain of the present utility model with this.All equivalences done according to the utility model Spirit Essence change or modify, and all should be encompassed within protection domain of the present utility model.
Claims (5)
1. the cryogenic pump sump lid for liquified natural gas immersed pump, it is characterized in that: comprise flange plate body (1), described flange plate body (1) is provided with linkage structure (4), described flange plate body (1) is connected by linkage structure (4) with cryogenic pump sump (6), the below of described flange plate body (1) is also provided with heat insulation layer (3), and heat insulation layer (3) is arranged between cryogenic pump sump (6) and flange plate body (1).
2. a kind of cryogenic pump sump lid for liquified natural gas immersed pump according to claim 1, is characterized in that: the heat insulation layer that described heat insulation layer (3) is vacuum structure.
3. a kind of cryogenic pump sump lid for liquified natural gas immersed pump according to claim 1, it is characterized in that: be provided with a vacuum chamber (5) be communicated with heat insulation layer (3) between described linkage structure (4) with flange plate body (1), described vacuum chamber (5) be provided with vacuum orifice (2).
4. a kind of cryogenic pump sump lid for liquified natural gas immersed pump according to claim 3, is characterized in that: described vacuum orifice (2) is communicated to the upper surface of flange plate body (1).
5. a kind of cryogenic pump sump lid for liquified natural gas immersed pump according to claim 1, is characterized in that: described linkage structure (4) is flange.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520384171.9U CN204785559U (en) | 2015-06-05 | 2015-06-05 | A cryogenic pump chi gai for liquified natural gas immersed pump |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520384171.9U CN204785559U (en) | 2015-06-05 | 2015-06-05 | A cryogenic pump chi gai for liquified natural gas immersed pump |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204785559U true CN204785559U (en) | 2015-11-18 |
Family
ID=54525607
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201520384171.9U Expired - Fee Related CN204785559U (en) | 2015-06-05 | 2015-06-05 | A cryogenic pump chi gai for liquified natural gas immersed pump |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN204785559U (en) |
-
2015
- 2015-06-05 CN CN201520384171.9U patent/CN204785559U/en not_active Expired - Fee Related
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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: 20151118 Termination date: 20200605 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |