CN204372546U - LNG storage tank Zero emission device - Google Patents
LNG storage tank Zero emission device Download PDFInfo
- Publication number
- CN204372546U CN204372546U CN201420864502.4U CN201420864502U CN204372546U CN 204372546 U CN204372546 U CN 204372546U CN 201420864502 U CN201420864502 U CN 201420864502U CN 204372546 U CN204372546 U CN 204372546U
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- CN
- China
- Prior art keywords
- storage tank
- lng storage
- gas
- liquefied pot
- return line
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- 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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Abstract
The utility model discloses a kind of LNG storage tank Zero emission device, comprise LNG storage tank and liquefied pot, described LNG storage tank inner chamber top is gas-phase space, bottom is liquid Space, described gas-phase space connects described liquefied pot by air delivering pipeline, is provided with liquid nitrogen vaporizer in liquefied pot, is connected bottom liquefied pot by return line with LNG storage tank, described air delivering pipeline is provided with pressure opening and closing valve, described return line is provided with reflux pump.The utility model process costs is low, and floor space is little, greatly reduces the cost recovery of BOG, is beneficial to and applies on a large scale; Security is high, and BOG is flammable explosive gas, the automatic conducting loop of pressure opening and closing valve; BOG reuse efficiency is high, has accomplished zero-emission.
Description
Technical field
The utility model relates to a kind of LNG storage tank Zero emission device.
Background technique
Environmental protection rock gas is a kind of high-grade energy of clean environmental protection, hardly sulfur-bearing, dust and other harmful matters, produces carbon dioxide and is less than other fossil fuels, cause greenhouse effect lower during burning, thus can fundamentally environmental protect quality.Economical and practical---rock gas is compared with artificial coal gas, suitable with specific heat of combustion price, and rock gas is clean clean, can extend the working life of kitchen range, also be conducive to the expenditure that user reduces maintenance expenses.Rock gas is clean fuel gas, and supply is stable, can improve air quality, thus can provide new power for this area's economic development, drives of prosperous economy and environmental protect.Safe and reliable---rock gas is nontoxic, easily distribute, and proportion is lighter than air, should not be accumulated into explosive gas, is safer combustion gas.Make the life better---along with family's use safety, reliably rock gas, greatly will improve domestic environment, improve the quality of living.Therefore increasing town dweller brings into use rock gas.
LNG(liquefied natural gas, LNG Liquefied natural gas) storing temperature be-162 degree, storage facilities is low temperature atmospheric tank, owing to there is the temperature difference with external environment, part LNG can gasify and form BOG(Boil Off Gas) be present in storage tank top formation gas-phase space, make tank inner pressure increase, in order to ensure the safety of storage tank, when tank internal pressure rises to certain value, need BOG is emptying or burning, cause waste.
Model utility content
For prior art Problems existing, the purpose of this utility model is to provide the LNG storage tank Zero emission device that a kind of process costs is low, floor space is little.
For achieving the above object, the utility model LNG storage tank Zero emission device, comprise LNG storage tank and liquefied pot, described LNG storage tank inner chamber top is gas-phase space, and bottom is liquid Space, and described gas-phase space connects described liquefied pot by air delivering pipeline, liquid nitrogen vaporizer is provided with in liquefied pot, be connected with LNG storage tank by return line bottom liquefied pot, described air delivering pipeline is provided with pressure opening and closing valve, described return line is provided with reflux pump.
Further, be arranged to taper bottom described liquefied pot, described return line is connected to the tip place of conical lower portion.
Further, described return line is connected to the gas-phase space of described LNG storage tank, and the LNG of backflow is back to described liquid Space from described gas-phase space.
Further, described return line is connected to the liquid Space of described LNG storage tank.
During the threshold values of the pressure in LNG storage tank higher than pressure opening and closing valve, the gas-phase space of air delivering pipeline conducting LNG storage tank and liquefied pot, BOG enters liquefied pot, is lowered the temperature rapidly in liquefied pot by liquid nitrogen vaporizer, make gas phase condensation, post liquefaction is sent back in LNG storage tank by reflux pump.
The utility model process costs is low, and floor space is little, greatly reduces the cost recovery of BOG, is beneficial to and applies on a large scale; Security is high, and BOG is flammable explosive gas, the automatic conducting loop of pressure opening and closing valve; BOG reuse efficiency is high, has accomplished zero-emission.
Accompanying drawing explanation
Fig. 1 is structural representation of the present utility model.
Embodiment
Below, with reference to accompanying drawing, the utility model is more fully illustrated, shown in the drawings of exemplary embodiment of the present utility model.But the utility model can be presented as multiple multi-form, and should not be construed as the exemplary embodiment being confined to describe here.But, these embodiments are provided, thus make the utility model comprehensively with complete, and scope of the present utility model is fully conveyed to those of ordinary skill in the art.
For ease of illustrating, here can use such as " on ", the space relative terms such as D score " left side " " right side ", for illustration of the element of shown in figure or the feature relation relative to another element or feature.It should be understood that except the orientation shown in figure, spatial terminology is intended to comprise device different azimuth in use or operation.Such as, if the device in figure is squeezed, be stated as the element being positioned at other elements or feature D score will be positioned at other elements or feature " on ".Therefore, exemplary term D score can comprise upper and lower both orientation.Device can otherwise be located (90-degree rotation or be positioned at other orientation), and space used here illustrates relatively can correspondingly explain.
As shown in Figure 1, the utility model LNG storage tank Zero emission device, comprise LNG storage tank 1 and liquefied pot 4, LNG storage tank 1 inner chamber top is gas-phase space 8, and bottom is liquid Space 9, gas-phase space 8 connects liquefied pot 4 by air delivering pipeline 3, be provided with liquid nitrogen vaporizer 5 in liquefied pot 4, be arranged to taper bottom liquefied pot 4, the tip of conical lower portion is connected with LNG storage tank 1 by return line 7, air delivering pipeline 3 is provided with pressure opening and closing valve 2, return line 7 is provided with reflux pump 6.Return line 7 is connected to the gas-phase space 8 of LNG storage tank 1, and the LNG of post liquefaction backflow is back to liquid Space 9 from gas-phase space 8.
Certainly, return line 7 can also be connected to the liquid Space 9 of LNG storage tank 1.
During use, when the threshold values of the pressure in LNG storage tank 1 higher than pressure opening and closing valve 2, the gas-phase space 8 of air delivering pipeline 3 conducting LNG storage tank 1 and liquefied pot 4, BOG enters liquefied pot 4, lowered the temperature rapidly by liquid nitrogen vaporizer 5 in liquefied pot 4, make gas phase condensation, post liquefaction is sent back in LNG storage tank 1 by reflux pump.The utility model process costs is low, and floor space is little, greatly reduces the cost recovery of BOG, is beneficial to and applies on a large scale; Security is high, and BOG is flammable explosive gas, the automatic conducting loop of pressure opening and closing valve; BOG reuse efficiency is high, has accomplished zero-emission.
Claims (4)
1.LNG storage tank Zero emission device, it is characterized in that, this device comprises LNG storage tank and liquefied pot, described LNG storage tank inner chamber top is gas-phase space, and bottom is liquid Space, and described gas-phase space connects described liquefied pot by air delivering pipeline, liquid nitrogen vaporizer is provided with in liquefied pot, be connected with LNG storage tank by return line bottom liquefied pot, described air delivering pipeline is provided with pressure opening and closing valve, described return line is provided with reflux pump.
2. LNG storage tank Zero emission device as claimed in claim 1, it is characterized in that, be arranged to taper bottom described liquefied pot, described return line is connected to the tip place of conical lower portion.
3. LNG storage tank Zero emission device as claimed in claim 1, it is characterized in that, described return line is connected to the gas-phase space of described LNG storage tank, and the LNG of backflow is back to described liquid Space from described gas-phase space.
4. LNG storage tank Zero emission device as claimed in claim 1, it is characterized in that, described return line is connected to the liquid Space of described LNG storage tank.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420864502.4U CN204372546U (en) | 2014-12-29 | 2014-12-29 | LNG storage tank Zero emission device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420864502.4U CN204372546U (en) | 2014-12-29 | 2014-12-29 | LNG storage tank Zero emission device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204372546U true CN204372546U (en) | 2015-06-03 |
Family
ID=53328767
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420864502.4U Expired - Fee Related CN204372546U (en) | 2014-12-29 | 2014-12-29 | LNG storage tank Zero emission device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN204372546U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105157345A (en) * | 2015-07-13 | 2015-12-16 | 中科力函(深圳)热声技术有限公司 | Industrial gas recycle equipment and storage system |
| CN108266635A (en) * | 2016-12-30 | 2018-07-10 | 天津市华赛尔气体有限公司 | A kind of liquid nitrogen storage tank safe to use |
| CN115493081A (en) * | 2022-09-14 | 2022-12-20 | 重庆燃气集团股份有限公司 | Zero release BOG cyclic recycling utilizes system |
-
2014
- 2014-12-29 CN CN201420864502.4U patent/CN204372546U/en not_active Expired - Fee Related
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105157345A (en) * | 2015-07-13 | 2015-12-16 | 中科力函(深圳)热声技术有限公司 | Industrial gas recycle equipment and storage system |
| CN105157345B (en) * | 2015-07-13 | 2017-09-01 | 中科力函(深圳)热声技术有限公司 | Industrial gasses reclaimer and stocking system |
| CN108266635A (en) * | 2016-12-30 | 2018-07-10 | 天津市华赛尔气体有限公司 | A kind of liquid nitrogen storage tank safe to use |
| CN115493081A (en) * | 2022-09-14 | 2022-12-20 | 重庆燃气集团股份有限公司 | Zero release BOG cyclic recycling utilizes 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 | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20150603 Termination date: 20171229 |