CN203671239U - Skid-mounted gas charging device for storage tank with built-in cryopump - Google Patents
Skid-mounted gas charging device for storage tank with built-in cryopump Download PDFInfo
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- CN203671239U CN203671239U CN201420024048.1U CN201420024048U CN203671239U CN 203671239 U CN203671239 U CN 203671239U CN 201420024048 U CN201420024048 U CN 201420024048U CN 203671239 U CN203671239 U CN 203671239U
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- storage tank
- cryopump
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- supporting component
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Abstract
The utility model discloses a skid-mounted gas charging device for a storage tank with a built-in cryopump, and belongs to the technical field of LNG (liquefied natural gas)/LN2 (liquid nitrogen). The skid-mounted gas charging device for the storage tank with the built-in cryopump comprises a storage tank casing , wherein a storage tank internal container is arranged in the storage tank casing , a support component is arranged on the storage tank internal container and extends to the bottom in the storage tank internal container from outside of the storage tank casing , and a blind flange is sealed at one end, located at the storage tank casing, of the support component; a support plate is arranged in the support component, an extension pipe component is connected onto the support plate, the cryopump placed on the extension pipe component extends into the bottom in the storage tank internal container, and a fixed drain pipe extending out of the storage tank casing is connected onto the cryopump. The skid-mounted gas charging device mainly solves the problem of failure of normal liquid injection due to insufficient liquid, unsmooth gas return and the like which occur frequently in an LNG gas station, and is suitable for LNG and LN2.
Description
Technical field
The utility model relates to the aerating equipment of LNG/LN2, particularly a kind of built-in cryopump formula storage tank skid aerator.
Background technique
LNG(Liquefied Natural Gas), i.e. the english abbreviation of LNG Liquefied natural gas.Rock gas is the inflammable gas that natural opening extraction comes in gas field, and main component is made up of methane.LNG is cooled to-162 DEG C by the rock gas of gaseous state under normal pressure, makes it to condense into liquid.After natural gas liquefaction, can greatly save storage and transportation space, and have that calorific value is large, performance high.
Liquid nitrogen (Liquid nitrogen) is often written as LN2, is the liquid form that nitrogen forms at low temperatures.The boiling point of nitrogen is-196 ° of C, will form liquid nitrogen if depress temperature at normal atmosphere below this; If pressurization can obtain liquid nitrogen at higher temperature.If human body contacts under the situation of protective measure having no, skin has the danger of serious frostbite.
LNG and LN2 are super-low liquid as can be seen here, therefore the requirement of its storage are just seemed to very strict.In at present conventional equipment, pump pond is as an independently parts existence, cryopump is positioned in the middle of pump pond, pump pond has two pipelines to be connected with liquid phase, the gas-phase space of storage tank respectively, liquid in storage tank is by liquid pipe inflow pump pond, cryopump transfers out the liquid of the inside, pump pond, and the gas in pump pond can be got back to storage tank from gas phase pipeline.Adopt in this way, once occur that hypotony, liquid level in storage tank is too low, the connecting tube in storage tank and pump pond is long or latus rectum is too small, gas in pump pond cannot be got back to the situations such as storage tank smoothly, capital causes the liquid in pump pond very few and cannot meet cryopump and normally get liquid, liquid feeding speed is reduced greatly and normal liquid feeding; Cryopump extracts less than liquid, not only can cause great infringement to cryopump inner rotatable part; Also can make the pressure decreased in pump pond, produce cavitation erosion cryopump is caused damage.
Model utility content
Goal of the invention of the present utility model is: for the problem of above-mentioned existence, a kind of built-in cryopump formula storage tank skid aerator is provided, to be mainly in LNG gas station, often to there will be owing to getting the reasons such as liquid deficiency, return-air be not smooth in order solving, and to cause the normally phenomenon of the failure of liquid feeding; Be applicable to LNG and LN2(liquid nitrogen) in; The supporting structure of cryopump can facilitate cryopump to install and maintenance, even if having in storage tank in the situation of liquid, also, without by fluid discharge in storage tank, only a small amount of gas discharging in storage tank need be reduced after pressure of storage tank, just cryopump can be installed or taken out, make operation very convenient and swift; Low temperature pump intake approaches pot bottom, even if the very low situation of tank level also can not impact, has greatly improved the utilization rate of liquid in storage tank.
The technical solution adopted in the utility model is as follows:
Built-in cryopump formula storage tank skid aerator of the present utility model, comprise storage tank shell, in described storage tank shell, be provided with tank contents device, on described tank contents device, be provided with supporting component, described supporting component stretches to the inner bottom part of tank contents device from storage tank housing exterior, described supporting component is positioned on one end of storage tank shell and is sealed with blind flange; In described supporting component, be provided with dunnage, be connected with extension tube assembly in described dunnage, the cryopump of laying on described extension tube assembly stretches to tank contents device inner bottom part, is connected with the fixing drain pipe that stretches out storage tank shell on described cryopump.
Owing to having adopted said structure, cryopump is placed in storage tank, makes it directly in storage tank, get liquid, what ensured cryopump normally gets liquid, fundamentally stop to get liquid deficiency or the not smooth situation of return-air, also there will not be because getting the not enough various phenomena of the failure that cause of liquid; Cryopump is put directly and get liquid in storage tank simultaneously, without the devices such as pump pond, connecting tube are set, structure is simplified more again; The supporting structure (supporting component, dunnage and extension tube assembly) of cryopump can facilitate cryopump to install and maintenance, even if having in storage tank in the situation of liquid, also without by fluid discharge in storage tank, only a small amount of gas discharging in storage tank need be reduced after pressure of storage tank, just cryopump can be installed or taken out, and filling, tearing open of cryopump is all more convenient for installation and the maintenance work of cryopump; Low temperature pump intake approaches tank contents device inner bottom part, even if the very low situation of tank level also can not impact, has greatly improved the utilization rate of liquid in storage tank.
Built-in cryopump formula storage tank skid aerator of the present utility model, described supporting component includes the support cylinder that stretches to tank contents device bottom from storage tank shell, in described support cylinder, be respectively equipped with some liquid pass holes and air passing hole near tank contents device inwall place, described liquid pass hole is positioned at close tank contents device inner bottom part place in support cylinder, and described air passing hole is positioned in support cylinder near tank contents device inner top place.
Owing to having adopted said structure, liquid pass hole is convenient to liquid LNG and LN2 enters in it from supporting component, and cryopump can be extracted out, guarantees the normal use of cryopump; Air passing hole, for making the gas communication inside and outside supporting component, can be got back to tank contents device from this pore when the gas in supporting component, avoids forming the situations such as negative pressure, guarantees the normal use of this aerator.
Built-in cryopump formula storage tank skid aerator of the present utility model, is connected by mobile drain pipe between described cryopump and fixing drain pipe, and described mobile drain pipe is positioned at the top of extension tube assembly.
Owing to having adopted said structure, mobile drain pipe is located at the top of extension tube assembly, in the time that needs are dismantled and install, can directly the blind flange on supporting component be removed, can easily mobile drain pipe be taken out, simultaneously, in the time that needs are installed, directly the two ends of mobile drain pipe are connected on low temperature delivery side of pump and fixing drain pipe, operate very simple and efficiently, be convenient to the maintenance in later stage.
In sum, owing to having adopted technique scheme, the beneficial effects of the utility model are:
1, built-in cryopump formula storage tank skid aerator of the present utility model, mainly in LNG gas station, often to there will be owing to getting the reasons such as liquid deficiency, return-air be not smooth in order to solve, and cause the normally phenomenon of the failure of liquid feeding, be applicable to LNG and LN2(liquid nitrogen);
2, built-in cryopump formula storage tank skid aerator of the present utility model, the supporting structure of cryopump can facilitate cryopump to install and maintenance, even if having in storage tank in the situation of liquid, also without by fluid discharge in storage tank, only a small amount of gas discharging in storage tank need be reduced after pressure of storage tank, just cryopump can be installed or taken out, make operation very convenient and swift;
3, built-in cryopump formula storage tank skid aerator of the present utility model, low temperature pump intake approaches pot bottom, even if the very low situation of tank level also can not impact, has greatly improved the utilization rate of liquid in storage tank.
Brief description of the drawings
Fig. 1 is structural representation of the present utility model.
Mark in figure: 1-storage tank shell, 2-tank contents device, 3-supporting component, 4-blind flange, 5-dunnage, 6-extension tube assembly, 7-move drain pipe, 8-cryopump, the fixing drain pipe of 9-.
Embodiment
Below in conjunction with accompanying drawing, the utility model is described in detail.
In order to make the purpose of this utility model, technological scheme and advantage clearer, below in conjunction with drawings and Examples, the utility model is further elaborated.Should be appreciated that specific embodiment described herein is only in order to explain the utility model, and be not used in restriction the utility model.
As shown in Figure 1, built-in cryopump formula storage tank skid aerator of the present utility model, comprise storage tank shell 1, in described storage tank shell 1, be provided with tank contents device 2, on described tank contents device 2, be provided with supporting component 3, described supporting component 3 stretches to the inner bottom part of tank contents device 2 from storage tank shell 1 outside, supporting component 3 welds together with storage tank shell 1 and tank contents device 2, described supporting component 3 is positioned on one end of storage tank shell 1 and is sealed with blind flange 4, and blind flange 4 is connected with supporting component 3 bolts, in described supporting component 3, be provided with dunnage 5, and dunnage 5 welds together with supporting component 3, in described dunnage 5, be connected with extension tube assembly 6, described extension tube assembly 6 is connected with dunnage 5 bolts, the cryopump 8 of laying on described extension tube assembly 6 stretches to tank contents device 2 inner bottom parts, wherein extension tube assembly 6 is connected with cryopump 8 bolts, on described cryopump 8, be connected with the fixing drain pipe 9 that stretches out storage tank shell 1, between described cryopump 8 and fixing drain pipe 9, be connected by mobile drain pipe 7, described mobile drain pipe 7 is positioned at the top of extension tube assembly 6, mobile drain pipe 7 welds together with extension tube assembly 6, fixing drain pipe 9 welds together with dunnage 5.Wherein said supporting component 3 includes the support cylinder that stretches to tank contents device 2 bottoms from storage tank shell 1, in described support cylinder, be respectively equipped with some liquid pass holes and air passing hole near tank contents device 2 inwall places, described liquid pass hole is positioned at close tank contents device 2 inner bottom part places in support cylinder, and described air passing hole is positioned in support cylinder near tank contents device 2 inner top places.Mobile drain pipe 7 welds together with extension tube assembly 6, and fixing drain pipe 9 welds together with dunnage 5.
The utility model is placed in cryopump in storage tank, makes it directly in storage tank, get liquid, and what ensured cryopump normally gets liquid, has fundamentally stopped to get liquid deficiency or the not smooth situation of return-air, also there will not be because getting the not enough various phenomena of the failure that cause of liquid; Cryopump is put directly and get liquid in storage tank simultaneously, without the devices such as pump pond, connecting tube are set, structure is simplified more again; The supporting structure (supporting component, dunnage and extension tube assembly) of cryopump can facilitate cryopump to install and maintenance, even if having in storage tank in the situation of liquid, also without by fluid discharge in storage tank, only a small amount of gas discharging in storage tank need be reduced after pressure of storage tank, just cryopump can be installed or taken out, and filling, tearing open of cryopump is all more convenient for installation and the maintenance work of cryopump; Low temperature pump intake approaches tank contents device inner bottom part, even if the very low situation of tank level also can not impact, has greatly improved the utilization rate of liquid in storage tank.Liquid pass hole is convenient to liquid LNG and LN2 enters in it from supporting component, and cryopump can be extracted out, guarantees the normal use of cryopump; Air passing hole, for making the gas communication inside and outside supporting component, can be got back to tank contents device from this pore when the gas in supporting component, avoids forming the situations such as negative pressure, guarantees the normal use of this aerator.
Built-in cryopump formula storage tank skid aerator of the present utility model, to be mainly in LNG gas station, often to there will be owing to getting the reasons such as liquid deficiency, return-air be not smooth in order solving, and to cause the normally phenomenon of the failure of liquid feeding, is applicable to LNG and LN2(liquid nitrogen).
The foregoing is only preferred embodiment of the present utility model; not in order to limit the utility model; all any amendments of doing within spirit of the present utility model and principle, be equal to and replace and improvement etc., within all should being included in protection domain of the present utility model.
Claims (3)
1. a built-in cryopump formula storage tank skid aerator, comprise storage tank shell (1), in described storage tank shell (1), be provided with tank contents device (2), it is characterized in that: on described tank contents device (2), be provided with supporting component (3), described supporting component (3) stretches to the inner bottom part of tank contents device (2) from storage tank shell (1) outside, described supporting component (3) is positioned on one end of storage tank shell (1) and is sealed with blind flange (4); In described supporting component (3), be provided with dunnage (5), in described dunnage (5), be connected with extension tube assembly (6), the cryopump (8) of laying on described extension tube assembly (6) stretches to tank contents device (2) inner bottom part, is connected with the fixing drain pipe (9) that stretches out storage tank shell (1) on described cryopump (8).
2. built-in cryopump formula storage tank skid aerator as claimed in claim 1, it is characterized in that: described supporting component (3) includes the support cylinder that stretches to tank contents device (2) bottom from storage tank shell (1), in described support cylinder, be respectively equipped with some liquid pass holes and air passing hole near tank contents device (2) inwall place, described liquid pass hole is positioned at close tank contents device (2) inner bottom part place in support cylinder, and described air passing hole is positioned in support cylinder near tank contents device (2) inner top place.
3. built-in cryopump formula storage tank skid aerator as claimed in claim 2, it is characterized in that: between described cryopump (8) and fixing drain pipe (9), be connected by mobile drain pipe (7), described mobile drain pipe (7) is positioned at the top of extension tube assembly (6).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420024048.1U CN203671239U (en) | 2014-01-15 | 2014-01-15 | Skid-mounted gas charging device for storage tank with built-in cryopump |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420024048.1U CN203671239U (en) | 2014-01-15 | 2014-01-15 | Skid-mounted gas charging device for storage tank with built-in cryopump |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203671239U true CN203671239U (en) | 2014-06-25 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420024048.1U Withdrawn - After Issue CN203671239U (en) | 2014-01-15 | 2014-01-15 | Skid-mounted gas charging device for storage tank with built-in cryopump |
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| CN (1) | CN203671239U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103727386A (en) * | 2014-01-15 | 2014-04-16 | 成都华气厚普机电设备股份有限公司 | Storage tank skid-mounted gas filling device with built-in cryogenic pump |
| CN105782708A (en) * | 2016-04-29 | 2016-07-20 | 新兴能源装备股份有限公司 | Tank internally-arranged pump structure of liquefied natural gas mobile filling vehicle |
| CN111140510A (en) * | 2019-02-22 | 2020-05-12 | 西安交通大学 | Self-vacuum heat-insulation pump for conveying low-temperature liquid |
-
2014
- 2014-01-15 CN CN201420024048.1U patent/CN203671239U/en not_active Withdrawn - After Issue
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103727386A (en) * | 2014-01-15 | 2014-04-16 | 成都华气厚普机电设备股份有限公司 | Storage tank skid-mounted gas filling device with built-in cryogenic pump |
| CN103727386B (en) * | 2014-01-15 | 2016-03-16 | 成都华气厚普机电设备股份有限公司 | Built-in cryopump formula storage tank skid aerator |
| CN105782708A (en) * | 2016-04-29 | 2016-07-20 | 新兴能源装备股份有限公司 | Tank internally-arranged pump structure of liquefied natural gas mobile filling vehicle |
| CN105782708B (en) * | 2016-04-29 | 2018-09-14 | 新兴能源装备股份有限公司 | Liquefied natural gas movement filling vehicle tank internal pump structure |
| CN111140510A (en) * | 2019-02-22 | 2020-05-12 | 西安交通大学 | Self-vacuum heat-insulation pump for conveying low-temperature liquid |
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| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| AV01 | Patent right actively abandoned |
Granted publication date: 20140625 Effective date of abandoning: 20160316 |
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| C25 | Abandonment of patent right or utility model to avoid double patenting |