CN206723838U - A kind of LNG tank BOG recovery systems - Google Patents
A kind of LNG tank BOG recovery systems Download PDFInfo
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- CN206723838U CN206723838U CN201720532346.5U CN201720532346U CN206723838U CN 206723838 U CN206723838 U CN 206723838U CN 201720532346 U CN201720532346 U CN 201720532346U CN 206723838 U CN206723838 U CN 206723838U
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Abstract
The utility model provides a kind of LNG tank BOG recovery systems, including：LNG tank, the LNG tank side is provided with recovery tube, recovery tube one end is connected to LNG tank, the other end is connected to vaporizer, the recovery tube is provided with LNG tank gas valve, the vaporizer is by seamless discharge fastener for connection in spiral steel pipe, spiral steel pipe is by seamless access fastener for connection in surge tank, surge tank is connected to turbine meter flow-meter by appendix, turbine meter flow-meter appendix is connected to fecder system network, flanged ball valve I is installed on appendix between surge tank and the turbine meter flow-meter, flanged ball valve II is installed on appendix between the turbine meter flow-meter and fecder system network.Gas in the utility model in LNG tank is incorporated to safely pipe network and supplied after treatment, avoids the arbitrarily emptying interior potential safety hazard that causes to stand from entering pipe network by natural gas again and reduce LNG operation costs.
Description
Technical field
Fuel gas transmission technical field is the utility model is related to, specially a kind of LNG tank BOG recovery systems.
Background technology
Liquefied petroleum gas storage tank is invaded by external environment heat, or in LNG storage tank submerged pump run when some mechanical energy
Heat energy is converted into, LNG gasification in tank is produced flashed vapour, these flashed vapours are exactly BOG gases.LNG gas stations can produce
Substantial amounts of BOG, if these BOG are directly discharged into air, the resource of preciousness is both wasted, while has polluted atmospheric environment again,
And there is potential safety hazard.At present, traditional LNG liquefaction has following two means：When first by gas compression, then it is passed through expansion
Machine, gas do work in expanding machine, release energy and are mechanic, temperature is reduced liquefaction, and existing expanding machine metered flow is too big,
And the expanding machine flow that LNG gas stations reclaimer needs is too small, therefore LNG gas stations are not suitable for it；Second, circulated using MR
Refrigeration, i.e., heat exchange is carried out using azeotrope and BOG, but the natural leakage of cryogen can cause cryogen filling and proportioning difficult,
It is not easy the stable operation of realization device.
Utility model content
The technical problem that the utility model solves is to provide a kind of LNG tank BOG recovery system
System, to solve the problems mentioned in the above background technology.
The technical problem that the utility model solves is realized using following technical scheme：A kind of LNG tank
BOG recovery systems, including：LNG tank, the LNG tank side are provided with recovery tube, and recovery tube one end connects
Be connected to LNG tank, the other end is connected to vaporizer, the recovery tube is provided with LNG tank gas valve, institute
Vaporizer is stated by seamless discharge fastener for connection in spiral steel pipe, spiral steel pipe by seamless access fastener for connection in surge tank,
Surge tank is connected to turbine meter flow-meter by appendix, and turbine meter flow-meter appendix is connected to fecder system network, the pressure regulation
Flanged ball valve I is installed, between the turbine meter flow-meter and fecder system network on the appendix between cabinet and turbine meter flow-meter
Appendix on flanged ball valve II is installed.
Other on the recovery tube to be connected to probe tube, probe tube seamless welding is provided with sampling on recovery tube, on probe tube
Valve.
Recovery tube between vaporizer and the LNG tank gas valve is provided with stainless steel ball valve I, seamless row
Go out steel pipe and be provided with pressure gauge.
Earth lead is connected with the seamless discharge steel pipe, seamless access steel pipe.
Compared with prior art, the beneficial effects of the utility model are：In the utility model in LNG tank
Gas is incorporated to safely pipe network and supplied after treatment, avoids the arbitrarily emptying interior potential safety hazard that causes to stand from passing through day again
Right gas, which enters pipe network, reduces LNG operation costs.
Brief description of the drawings
Fig. 1 is structural representation of the present utility model.
Embodiment
In order that implement technical means of the present utility model, creation characteristic, reached purpose and effect are easy to understand, under
Face combines and is specifically illustrating, and the utility model is expanded on further.
As shown in figure 1, a kind of LNG tank BOG recovery systems, including：LNG tank 1, the liquefaction
The side of natural gas storage tank 1 is provided with recovery tube 3, and the one end of recovery tube 3 is connected to LNG tank 1, the other end is connected to vaporization
Device 6, the recovery tube 3 are provided with LNG tank gas valve 2, and the vaporizer 6 is connected to by seamless discharge steel pipe 8
Spiral steel pipe 9, spiral steel pipe 9 are connected to surge tank 11 by seamless access steel pipe 10, and surge tank 11 is connected to by appendix
Turbine meter flow-meter 13, the appendix of turbine meter flow-meter 13 are connected to fecder system network 15, the surge tank 11 and turbine flow-meter
Flanged ball valve I12, the gas transmission between the turbine meter flow-meter 13 and fecder system network 15 are installed on appendix between meter 13
Flanged ball valve II14 is installed on pipe.
Other on the recovery tube 3 to be connected to probe tube, probe tube seamless welding is provided with recovery tube 3, on probe tube and taken
Sample valve 4.
Recovery tube 3 between the vaporizer 6 and LNG tank gas valve 2 is provided with stainless steel ball valve I5, nothing
Seam discharge steel pipe 8 is provided with pressure gauge 7.
Earth lead is connected with the seamless discharge steel pipe 8, seamless access steel pipe 10.
Gas in the utility model in LNG tank 1 passes through LNG tank gas valve 2 and surge tank
11st, vaporizer 6 is incorporated to safely pipe network and supplied after handling, and avoids the arbitrarily emptying interior potential safety hazard that causes to stand from passing through again
Natural gas, which enters pipe network, reduces LNG operation costs.
The advantages of general principle and principal character of the present utility model and the utility model has been shown and described above.One's own profession
The technical staff of industry is it should be appreciated that the utility model is not restricted to the described embodiments, described in above-described embodiment and specification
Simply illustrate principle of the present utility model, on the premise of the spirit and scope of the utility model is not departed from, the utility model is also
Various changes and modifications are had, these changes and improvements are both fallen within claimed the scope of the utility model.The utility model
Claimed scope by appended claims and its equivalent thereof.
Claims (4)
1. a kind of LNG tank BOG recovery systems, including：LNG tank, it is characterised in that：The liquefaction day
Right gas storage tank side is provided with recovery tube, and recovery tube one end is connected to LNG tank, the other end is connected to vaporizer, described
Recovery tube is provided with LNG tank gas valve, and the vaporizer is by seamless discharge fastener for connection in spiral steel pipe, spiral shell
Rotation steel pipe is connected to turbine meter flow-meter, turbine table in surge tank, surge tank by seamless access fastener for connection by appendix
Flowmeter appendix is connected to fecder system network, and flange ball is provided with the appendix between surge tank and the turbine meter flow-meter
Valve I, flanged ball valve II is installed on the appendix between the turbine meter flow-meter and fecder system network.
A kind of 2. LNG tank BOG recovery systems according to claim 1, it is characterised in that：The recovery tube
Upper side is connected to probe tube, and probe tube seamless welding is provided with sampling valve on recovery tube on probe tube.
A kind of 3. LNG tank BOG recovery systems according to claim 1, it is characterised in that：The vaporizer
Recovery tube between LNG tank gas valve is provided with stainless steel ball valve I, and seamless discharge steel pipe is provided with pressure gauge.
A kind of 4. LNG tank BOG recovery systems according to claim 1, it is characterised in that：The seamless row
Go out steel pipe, be connected with earth lead on seamless access steel pipe.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720532346.5U CN206723838U (en) | 2017-05-15 | 2017-05-15 | A kind of LNG tank BOG recovery systems |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720532346.5U CN206723838U (en) | 2017-05-15 | 2017-05-15 | A kind of LNG tank BOG recovery systems |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN206723838U true CN206723838U (en) | 2017-12-08 |
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ID=60509395
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201720532346.5U Active CN206723838U (en) | 2017-05-15 | 2017-05-15 | A kind of LNG tank BOG recovery systems |
Country Status (1)
| Country | Link |
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| CN (1) | CN206723838U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107023750A (en) * | 2017-05-15 | 2017-08-08 | 阜阳国祯燃气有限公司 | A kind of LNG tank BOG recovery systems |
| CN108730769A (en) * | 2018-06-14 | 2018-11-02 | 蚌埠艾普压缩机制造有限公司 | A kind of BOG is recycled to gas distributing system device |
-
2017
- 2017-05-15 CN CN201720532346.5U patent/CN206723838U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107023750A (en) * | 2017-05-15 | 2017-08-08 | 阜阳国祯燃气有限公司 | A kind of LNG tank BOG recovery systems |
| CN108730769A (en) * | 2018-06-14 | 2018-11-02 | 蚌埠艾普压缩机制造有限公司 | A kind of BOG is recycled to gas distributing system device |
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