CN107023750A - A kind of LNG tank BOG recovery systems - Google Patents
A kind of LNG tank BOG recovery systems Download PDFInfo
- Publication number
- CN107023750A CN107023750A CN201710338824.3A CN201710338824A CN107023750A CN 107023750 A CN107023750 A CN 107023750A CN 201710338824 A CN201710338824 A CN 201710338824A CN 107023750 A CN107023750 A CN 107023750A
- Authority
- CN
- China
- Prior art keywords
- lng tank
- meter
- tank
- appendix
- lng
- 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.)
- Pending
Links
- 238000011084 recovery Methods 0.000 title claims abstract description 31
- 229910000831 Steel Inorganic materials 0.000 claims abstract description 19
- 239000010959 steel Substances 0.000 claims abstract description 19
- 239000006200 vaporizer Substances 0.000 claims abstract description 9
- 239000000523 sample Substances 0.000 claims description 10
- 229910001220 stainless steel Inorganic materials 0.000 claims description 3
- 239000010935 stainless steel Substances 0.000 claims description 3
- 238000003466 welding Methods 0.000 claims description 3
- 238000005070 sampling Methods 0.000 claims description 2
- 239000007789 gas Substances 0.000 abstract description 16
- VNWKTOKETHGBQD-UHFFFAOYSA-N methane Chemical compound C VNWKTOKETHGBQD-UHFFFAOYSA-N 0.000 abstract description 8
- 239000003345 natural gas Substances 0.000 abstract description 4
- 230000008859 change Effects 0.000 description 3
- 238000005516 engineering process Methods 0.000 description 3
- 230000005540 biological transmission Effects 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000004087 circulation Effects 0.000 description 1
- 230000006835 compression Effects 0.000 description 1
- 238000007906 compression Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 239000002737 fuel gas Substances 0.000 description 1
- 238000002309 gasification Methods 0.000 description 1
- 230000006872 improvement Effects 0.000 description 1
- 239000003915 liquefied petroleum gas Substances 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000009467 reduction Effects 0.000 description 1
- 238000005057 refrigeration Methods 0.000 description 1
- 238000009834 vaporization Methods 0.000 description 1
- 230000008016 vaporization Effects 0.000 description 1
Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F17—STORING OR DISTRIBUTING GASES OR LIQUIDS
- F17D—PIPE-LINE SYSTEMS; PIPE-LINES
- F17D1/00—Pipe-line systems
- F17D1/02—Pipe-line systems for gases or vapours
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Filling Or Discharging Of Gas Storage Vessels (AREA)
Abstract
The present invention 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 present invention in LNG tank is incorporated to safely pipe network and supplied after treatment, it is to avoid arbitrarily the emptying interior potential safety hazard that causes to stand can enter pipe network by natural gas again and reduce LNG operation costs.
Description
Technical field
The present invention relates to fuel gas transmission technical field, specially a kind of LNG tank BOG recovery systems.
Background technology
Liquefied petroleum gas storage tank is invaded by external environment heat, or some mechanical energy when submerged pump is run in LNG storage tank
Heat energy is converted into, LNG gasification in tank is produced flashed vapour, these flashed vapours are exactly BOG gases.LNG gas stations can be produced
Substantial amounts of BOG, if these BOG are directly discharged into air, has both wasted the resource of preciousness, while atmospheric environment is polluted again,
And have potential safety hazard.At present, traditional LNG liquefaction has following two means：One is, first by gas compression, then to be passed through expansion
Machine, gas does work in expanding machine, releases energy and is mechanic, makes temperature reduction 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；Two be using MR circulations
Refrigeration, i.e., carry out heat exchange using azeotrope and BOG, but the natural leakage of cryogen can cause cryogen filling and proportioning difficult,
It is difficult to realize the stable operation of device.
The content of the invention
Technical problem solved by the invention is to provide a kind of LNG tank BOG recovery systems, with solution
State the problem of being proposed in background technology.
Technical problem solved by the invention is realized using following technical scheme：A kind of LNG tank BOG is returned
Receipts system, including：LNG tank, the LNG tank side is provided with recovery tube, and recovery tube one end is connected to
LNG tank, the other end are connected to vaporizer, and the recovery tube is provided with LNG tank gas valve, the vapour
Change device by seamless discharge fastener for connection in spiral steel pipe, spiral steel pipe is by seamless access fastener for connection in surge tank, pressure regulation
Cabinet is connected to turbine meter flow-meter by appendix, and turbine meter flow-meter appendix is connected to fecder system network, the surge tank with
Flanged ball valve I is installed on the appendix between turbine meter flow-meter, it is defeated between the turbine meter flow-meter and fecder system network
Flanged ball valve II is installed on tracheae.
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 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 invention are as follows：Gas in the present invention in LNG tank passes through
Pipe network is incorporated to after processing safely to be supplied, it is to avoid arbitrarily the emptying interior potential safety hazard that causes to stand can be entered by natural gas again
Pipe network reduces LNG operation costs.
Brief description of the drawings
Fig. 1 is structural representation of the invention.
Embodiment
In order that the present invention's realizes that technological means, creation characteristic, reached purpose and effect are easy to understand, tie below
Conjunction is specifically illustrating, and the present invention 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 and is connected to vaporization
Device 6, the recovery tube 3 is 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 is 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 is 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 present invention in LNG tank 1 passes through LNG tank gas valve 2 and surge tank 11, vapour
Change after device 6 is handled and be incorporated to pipe network safely and supplied, it is to avoid arbitrarily empty that cause to stand interior potential safety hazard again can be by natural gas
LNG operation costs are reduced into pipe network.
The general principle and principal character and advantages of the present invention of the present invention has been shown and described above.The technology of the industry
Personnel are it should be appreciated that the present invention is not limited to the above embodiments, and the simply explanation described in above-described embodiment and specification is originally
The principle of invention, without departing from the spirit and scope of the present invention, various changes and modifications of the present invention are possible, these changes
Change and improvement all fall within the protetion scope of the claimed invention.The claimed scope of the present invention 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 and 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
Steel pipe is revolved by seamless access fastener for connection in surge tank, and surge tank is connected to turbine meter flow-meter, turbine table by appendix
Flowmeter appendix is connected on the appendix between fecder system network, surge tank and the turbine meter flow-meter and is provided with flange ball
Flanged ball valve II is installed on valve I, the appendix between the turbine meter flow-meter and fecder system network.
2. a kind of 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.
3. a kind of 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.
4. a kind of 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 |
|---|---|---|---|
| CN201710338824.3A CN107023750A (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 |
|---|---|---|---|
| CN201710338824.3A CN107023750A (en) | 2017-05-15 | 2017-05-15 | A kind of LNG tank BOG recovery systems |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN107023750A true CN107023750A (en) | 2017-08-08 |
Family
ID=59529646
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201710338824.3A Pending CN107023750A (en) | 2017-05-15 | 2017-05-15 | A kind of LNG tank BOG recovery systems |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN107023750A (en) |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2016148001A (en) * | 2015-02-13 | 2016-08-18 | 大阪瓦斯株式会社 | Heat amount control system for liquefied gas shipping facility |
| CN205579146U (en) * | 2016-05-05 | 2016-09-14 | 江西制氧机有限公司 | Liquefied natural gas low -temperature liquid storage tank's flash distillation gas recycle device |
| CN106224764A (en) * | 2016-08-31 | 2016-12-14 | 张家港富瑞特种装备股份有限公司 | Vehicular liquefied natural gas box differential pressure filling apparatus and method |
| CN206723838U (en) * | 2017-05-15 | 2017-12-08 | 阜阳国祯燃气有限公司 | A kind of LNG tank BOG recovery systems |
-
2017
- 2017-05-15 CN CN201710338824.3A patent/CN107023750A/en active Pending
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2016148001A (en) * | 2015-02-13 | 2016-08-18 | 大阪瓦斯株式会社 | Heat amount control system for liquefied gas shipping facility |
| CN205579146U (en) * | 2016-05-05 | 2016-09-14 | 江西制氧机有限公司 | Liquefied natural gas low -temperature liquid storage tank's flash distillation gas recycle device |
| CN106224764A (en) * | 2016-08-31 | 2016-12-14 | 张家港富瑞特种装备股份有限公司 | Vehicular liquefied natural gas box differential pressure filling apparatus and method |
| CN206723838U (en) * | 2017-05-15 | 2017-12-08 | 阜阳国祯燃气有限公司 | A kind of LNG tank BOG recovery systems |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN204062466U (en) | A kind of LNG filling station waterborne | |
| US2645907A (en) | Apparatus and method for filling containers with predetermined quantities of gas | |
| CN103759135B (en) | A kind of LNG storage means of BOG zero-emission and device | |
| CN206723838U (en) | A kind of LNG tank BOG recovery systems | |
| CN109073147A (en) | It is applicable in the hydrogen filling station of liquid hydrogen | |
| Tian et al. | Experimental study of accidental release behavior of high-pressurized CO2 vessel | |
| CN206973262U (en) | A kind of LNG cold pump sump gas extraction system | |
| CN202629586U (en) | Box type gas filling device for liquefied natural gas | |
| US2328647A (en) | Method and apparatus for storing gaseous materials in the liquid phase | |
| CN205781982U (en) | LNG filling station is unloaded without pump, is filled and charging system | |
| CN107300430B (en) | Vacuum insulation low-temperature pipe heat leakage measurement device and measurement method thereof | |
| CN204005205U (en) | A kind of tank car falls the device of liquid to low-temperature liquid storage tank | |
| CN107023750A (en) | A kind of LNG tank BOG recovery systems | |
| CN205424413U (en) | Be used for empty interior stainless steel pipeline system of cold box that divides to aerify welded air feeder | |
| CN104865043B (en) | A kind of LNG cold flow characteristics experimental provision | |
| CN106764410A (en) | A kind of LNG receiving stations terminal boil-off gas recovery system | |
| JP6252069B2 (en) | Tank equipment | |
| CN106352232A (en) | Skid-mounted liquefied natural gas injection device | |
| CN207394353U (en) | A kind of differential LNG tank cars charging system | |
| CN207179176U (en) | A kind of LNG satellite stations air supply system | |
| CN206352723U (en) | A kind of LNG receiving stations terminal boil-off gas recovery system | |
| CN205331792U (en) | Residual gas recovery unit in transport tank | |
| CN203686564U (en) | LNG (liquefied natural gas) storage device with BOG zero-discharge function | |
| CN205938507U (en) | Retrieve BOG's liquefied natural gas tank wagon | |
| CN106082218A (en) | Prepare the device of dry ice |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| RJ01 | Rejection of invention patent application after publication | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20170808 |