CN104315336A - Integrated gas supply equipment for LNG - Google Patents
Integrated gas supply equipment for LNG Download PDFInfo
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- CN104315336A CN104315336A CN201410527297.7A CN201410527297A CN104315336A CN 104315336 A CN104315336 A CN 104315336A CN 201410527297 A CN201410527297 A CN 201410527297A CN 104315336 A CN104315336 A CN 104315336A
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- pipeline
- lng
- storage tank
- valve
- lng storage
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Abstract
The invention relates to integrated gas supply equipment for LNG. The integrated gas supply equipment for the LNG comprises an LNG storage tank, wherein the bottom of the LNG storage tank is connected with a first carburetor, a low-temperature boost regulating valve and a four-way valve through pipelines in sequence; the four-way valve is connected with the top of the LNG storage tank through a pipeline; the bottom of the LNG storage tank is also connected with a low-temperature buck regulating valve through a pipeline; the other end of the low-temperature buck regulating valve is connected with the four-way valve through a pipeline; the pipeline used for communicating the low-temperature buck regulating valve and the LNG storage tank is also connected with a second carburetor; a gas outlet end of the second carburetor is connected with a user terminal through a pipeline. According to the integrated gas supply equipment for the LNG, the pressure regulation in a tank body is realized so that the tank body is kept within a set pressure range all the time; a supply effect is guaranteed; potential safety hazards are eliminated; moreover, the integrated gas supply equipment is simple in structure and convenient to mount.
Description
Technical field
The present invention relates to LNG air feeder field, specifically, relate to a kind of LNG integral type air feed equipment.
Background technique
The LNG storage tank Dewar vessel (storage device) that the heating of existing community and small-sized industrial boiler use and vaporization pressure regulation, add the fixtures such as smelly metering for split and design, and need when installing to carry out general assembly in different operation rooms, there is floor space large, the defect of in-site installation difficulty.Field pipes between equipment connects needs prison inspection, and the installation time is longer, and installation quality is affected by environment comparatively large, there is potential danger.
Meanwhile, existing LNG storage tank only has memory function, do not have automatic Regulation function, and LNG storage tank all exists unfavourable pressure operating range.Under working state, most of LNG be liquid deposition in tank base, small part LNG is that gaseous state (CNG) swims in tank body top.Therefore, when ambient temperature rising causes the CNG of tank interior to become many, the pressure in tank body will become large, occurs potential safety hazard; When external environment condition is too low, the pressure in tank body will reduce accordingly, affects LNG regular supply.
Therefore, how designing and a kind ofly have automatic Regulation function and save the LNG plant of installing space, is the problem that those skilled in the art's letter need solve.
Summary of the invention
The object of the invention is for overcoming above-mentioned the deficiencies in the prior art, a kind of LNG integral type air feed equipment is provided.Air feed equipment provided by the present invention has automatic Regulation function, and significantly can reduce occupation of land space, saves installation procedure.
The present invention adopts following technological scheme:
A kind of LNG integral type air feed equipment, comprise LNG storage tank, contacted mutually with the first vaporizer, low temperature boost adjusted valve and four-way valve successively by pipeline bottom described LNG storage tank, four-way valve is connected with the top of LNG storage tank by pipeline; The bottom of described LNG storage tank is also connected with low temperature decompression regulating valve by pipeline, and the other end of low temperature decompression regulating valve is connected with four-way valve by pipeline; Also be connected with the second vaporizer with the pipeline between LNG storage tank for being communicated with low temperature decompression regulating valve, the outlet side of the second vaporizer is connected with user terminal by pipeline.
Preferably, on the pipeline connecting the second vaporizer and user terminal, device for adding odor is provided with.
Preferably, on the pipeline connecting the first vaporizer and LNG storage tank, also membrane valve is provided with.
Preferably, be also connected with a Qian type pipeline with the pipeline of the first vaporizer for connecting membrane valve, the other end of Qian type pipeline is connected with the pipeline of LNG storage tank with for being connected four-way valve, Qian type pipeline also with instead fill stop valve and be connected.
Preferably, described four-way valve is also connected with pipeline safety valve.
The invention has the beneficial effects as follows: by arranging different valves, pipeline and vaporizer, the pressure achieving LNG storage tank inside regulates, the pressure of LNG storage tank inside is in design work pressure range all the time, has ensured the regular supply of LNG and eliminated safe hidden trouble; Meanwhile, this apparatus structure is simple, and be easy to assembling maintenance, floor space is little, can general assembly in a workshop.
Accompanying drawing illustrates:
In order to be illustrated more clearly in the embodiment of the present invention or technological scheme of the prior art, be briefly described to the accompanying drawing used required in embodiment or description of the prior art below, apparently, accompanying drawing in the following describes is only some embodiments of the present invention, for those of ordinary skill in the art, under the prerequisite not paying creative work, other accompanying drawing can also be obtained according to these accompanying drawings.
Fig. 1 is structural representation of the present invention;
Wherein, 1, LNG storage tank, 2, low temperature boost adjusted valve, 3, low temperature decompression regulating valve, the 4, first vaporizer, 5, four-way valve, the 6, second vaporizer, 7, instead fill stop valve, 8, membrane valve, 9, Qian type pipeline, 10, device for adding odor, 11, pipeline safety valve.
Embodiment:
Below in conjunction with the accompanying drawing in the embodiment of the present invention, be clearly and completely described the technological scheme in the embodiment of the present invention, obviously, described embodiment is only the present invention's part embodiment, instead of whole embodiments.Based on the embodiment in the present invention, those of ordinary skill in the art, not making the every other embodiment obtained under creative work prerequisite, belong to the scope of protection of the invention.
Embodiment 1: a kind of LNG integral type air feed equipment, its structure is as shown in Figure 1: comprise LNG storage tank 1, bottom described LNG storage tank 1 by pipeline successively with the first vaporizer 4, low temperature boost adjusted valve 2, four-way valve 5 be connected, four-way valve 5 is connected by the top of pipeline with LNG storage tank 1; The bottom of described LNG storage tank 1 is also connected with low temperature decompression regulating valve 3 by pipeline, and the other end of low temperature decompression regulating valve 3 is connected with four-way valve 5 by pipeline; Also be connected with the second vaporizer 6 for the pipeline be communicated with between low temperature decompression regulating valve 3 with LNG storage tank 1, the outlet side of the second vaporizer 6 is connected with user terminal by pipeline.
Device for adding odor 10 is provided with on the pipeline connecting the second vaporizer 6 and user terminal.
Membrane valve 8 is also provided with on the pipeline connecting the first vaporizer 4 and LNG storage tank 1.
Also be connected with a Qian type pipeline 9 with the pipeline of the first vaporizer 4 for connecting membrane valve 8, the other end of Qian type pipeline 9 is connected with the pipeline of LNG storage tank 1 with for being connected four-way valve 2, Qian type pipeline 1 also with instead fill stop valve 7 and be connected.
Described four-way valve 5 is also connected with pipeline safety valve 11, and the effect of pipeline safety valve 11 shields to pipeline when LNG storage tank 1 pressure anomaly raises.
When LNG is very few, carry out the interpolation of LNG by membrane valve 8 and anti-dress stop valve 7.
Principle of the present invention is:
When LNG storage tank 1 pressure is lower, LNG flows out from the b bottom LNG storage tank 1, vaporizes in the first vaporizer 4, and the LNG stream in LNG storage tank 1 is vaporized at the first vaporizer 4 before entering low temperature boost adjusted valve 2, and the gas after vaporization enters tank top thus supercharging;
When pressure in LNG storage tank 1 is higher, can there is the gas after vaporization in LNG storage tank 1 top and opening a in the pipeline of low temperature boost adjusted valve 2, and the pressure of LNG storage tank 1 inner top comparatively base pressure want high, there is a certain amount of CNG.Utilize this feature, when LNG storage tank 1 internal pressure is lower than setting value, low temperature decompression regulating valve 3 is in closed condition; When pressure medium is higher than setting value, because the iris action power of pressure to low temperature decompression regulating valve 3 is greater than valve spring power, diaphragm moves upward, and drive valve jacking high, low temperature decompression regulating valve 3 is opened, and LNG flows into LNG tank body 1 top from a.
In normal state, LNG stream through the first vaporizer 4, low temperature boost adjusted valve 2, four-way valve 5 and the second vaporizer 6, through device for adding odor 10 carry out adding smelly after deliver to user terminal.
In the present invention, by said structure, the pressure achieving tank interior regulates, and tank body is within the scope of setting pressure all the time, and effect of both having secure an adequate supply, turn eliminates potential safety hazard, and structure is simple, easy for installation.
To the above-mentioned explanation of the disclosed embodiments, professional and technical personnel in the field are realized or uses the present invention.To be apparent for those skilled in the art to the multiple amendment of these embodiments, General Principle as defined herein can without departing from the spirit or scope of the present invention, realize in other embodiments.Therefore, the present invention can not be restricted to these embodiments shown in this article, but will meet the widest scope consistent with principle disclosed herein and features of novelty.
Claims (5)
1. a LNG integral type air feed equipment, comprises LNG storage tank, it is characterized in that: contacted mutually with the first vaporizer, low temperature boost adjusted valve and four-way valve successively by pipeline bottom described LNG storage tank, four-way valve is connected with the top of LNG storage tank by pipeline; The bottom of described LNG storage tank is also connected with low temperature decompression regulating valve by pipeline, and the other end of low temperature decompression regulating valve is connected with four-way valve by pipeline; Also be connected with the second vaporizer with the pipeline between LNG storage tank for being communicated with low temperature decompression regulating valve, the outlet side of the second vaporizer is connected with user terminal by pipeline.
2. LNG integral type air feed equipment according to claim 1, is characterized in that: on the pipeline connecting the second vaporizer and user terminal, be provided with device for adding odor.
3. LNG integral type air feed equipment according to claim 2, is characterized in that: on the pipeline connecting the first vaporizer and LNG storage tank, be also provided with membrane valve.
4. LNG integral type air feed equipment according to claim 3, it is characterized in that: be also connected with a Qian type pipeline with the pipeline of the first vaporizer for connecting membrane valve, the other end of Qian type pipeline is connected with the pipeline of LNG storage tank with for being connected four-way valve, Qian type pipeline also with instead fill stop valve and be connected.
5. the integral type air feed equipment according to any one of claim 1-4 is characterized in that: described four-way valve is also connected with pipeline safety valve.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410527297.7A CN104315336B (en) | 2014-10-09 | 2014-10-09 | A kind of LNG integral type air feed equipment |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410527297.7A CN104315336B (en) | 2014-10-09 | 2014-10-09 | A kind of LNG integral type air feed equipment |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN104315336A true CN104315336A (en) | 2015-01-28 |
| CN104315336B CN104315336B (en) | 2015-09-09 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201410527297.7A Active CN104315336B (en) | 2014-10-09 | 2014-10-09 | A kind of LNG integral type air feed equipment |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107477362A (en) * | 2017-07-06 | 2017-12-15 | 上海卫星装备研究所 | Large space environmental simulation system external liquid nitrogen storage tank multiple spot regulator and method |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20060169352A1 (en) * | 2003-05-09 | 2006-08-03 | Bingham Dennis A | Apparatus for dispensing compressed natural gas and liquified natural gas to natural gas powered vehicles |
| CN202065680U (en) * | 2011-04-14 | 2011-12-07 | 北京中燃伟业燃气有限公司 | Liquefied natural gas (LNG) gasification pressure regulating gas supply device |
| CN103411129A (en) * | 2013-08-22 | 2013-11-27 | 济南红恩能源科技有限公司 | Method for implementing self-pressurization of unpowered power supply at LNG (liquefied natural gas) skid-mounted station |
| CN204164657U (en) * | 2014-10-09 | 2015-02-18 | 鲁西新能源装备集团有限公司 | A kind of LNG integral type air feed equipment |
-
2014
- 2014-10-09 CN CN201410527297.7A patent/CN104315336B/en active Active
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20060169352A1 (en) * | 2003-05-09 | 2006-08-03 | Bingham Dennis A | Apparatus for dispensing compressed natural gas and liquified natural gas to natural gas powered vehicles |
| CN202065680U (en) * | 2011-04-14 | 2011-12-07 | 北京中燃伟业燃气有限公司 | Liquefied natural gas (LNG) gasification pressure regulating gas supply device |
| CN103411129A (en) * | 2013-08-22 | 2013-11-27 | 济南红恩能源科技有限公司 | Method for implementing self-pressurization of unpowered power supply at LNG (liquefied natural gas) skid-mounted station |
| CN204164657U (en) * | 2014-10-09 | 2015-02-18 | 鲁西新能源装备集团有限公司 | A kind of LNG integral type air feed equipment |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107477362A (en) * | 2017-07-06 | 2017-12-15 | 上海卫星装备研究所 | Large space environmental simulation system external liquid nitrogen storage tank multiple spot regulator and method |
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| CN104315336B (en) | 2015-09-09 |
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| C53 | Correction of patent of invention or patent application | ||
| CB03 | Change of inventor or designer information |
Inventor after: Zhang Wei Inventor after: Xiao Xiuli Inventor after: Li Fangchen Inventor after: Han Feng Inventor after: Li Shuhai Inventor after: Yao Yuanzhong Inventor after: Wang Yanpeng Inventor after: Zhang Yu Inventor after: Ma Yunhe Inventor after: Wang Jinguang Inventor before: Li Fangchen Inventor before: Han Feng Inventor before: Li Shuhai Inventor before: Yao Yuanzhong Inventor before: Wang Yanpeng Inventor before: Zhang Yu Inventor before: Ma Yunhe Inventor before: Wang Jinguang Inventor before: Xiao Xiuli |
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| COR | Change of bibliographic data |
Free format text: CORRECT: INVENTOR; FROM: LI FANGCHEN HAN FENG LI SHUHAI YAO YUANZHONG WANG YANPENG ZHANG YU MA YUNHE WANG JINGUANG XIAO XIULI TO: ZHANG WEI LI FANGCHEN HAN FENG LI SHUHAI YAO YUANZHONG WANG YANPENG ZHANG YU MA YUNHE WANG JINGUANG XIAO XIULI |
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| C14 | Grant of patent or utility model | ||
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