CN111637359B - BOG re-condensation system and method for LNG receiving station - Google Patents
BOG re-condensation system and method for LNG receiving station Download PDFInfo
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- CN111637359B CN111637359B CN202010483761.2A CN202010483761A CN111637359B CN 111637359 B CN111637359 B CN 111637359B CN 202010483761 A CN202010483761 A CN 202010483761A CN 111637359 B CN111637359 B CN 111637359B
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F17—STORING OR DISTRIBUTING GASES OR LIQUIDS
- F17C—VESSELS FOR CONTAINING OR STORING COMPRESSED, LIQUEFIED OR SOLIDIFIED GASES; FIXED-CAPACITY GAS-HOLDERS; FILLING VESSELS WITH, OR DISCHARGING FROM VESSELS, COMPRESSED, LIQUEFIED, OR SOLIDIFIED GASES
- F17C9/00—Methods or apparatus for discharging liquefied or solidified gases from vessels not under pressure
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- 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
- F17D1/005—Pipe-line systems for a two-phase gas-liquid flow
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F17—STORING OR DISTRIBUTING GASES OR LIQUIDS
- F17D—PIPE-LINE SYSTEMS; PIPE-LINES
- F17D3/00—Arrangements for supervising or controlling working operations
- F17D3/01—Arrangements for supervising or controlling working operations for controlling, signalling, or supervising the conveyance of a product
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F28—HEAT EXCHANGE IN GENERAL
- F28B—STEAM OR VAPOUR CONDENSERS
- F28B3/00—Condensers in which the steam or vapour comes into direct contact with the cooling medium
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Abstract
The invention discloses a BOG recondensing system and method for an LNG receiving station. The structure of the system is as follows: an output pipeline of a low-pressure outward delivery pump in the LNG storage tank is connected with a high-pressure pump arranged outside the low-pressure outward delivery pump; the outlet of the high-pressure pump is connected with a high-pressure delivery pipeline, and a high-pressure gasifier is arranged on the high-pressure delivery pipeline; after the high-pressure pump, a high-pressure LNG branch pipeline is led out of the high-pressure output pipeline and is connected with a liquid-phase inlet of the heat exchanger; the gas-phase outlet and the liquid-phase outlet of the heat exchanger are respectively connected with the low-pressure suction inlet and the high-pressure suction inlet of the first Venturi injection mixer; the outlet of the first Venturi injection type mixer is connected with the buffer liquid-separating tank, the liquid phase outlet of the buffer liquid-separating tank is connected with the low-flow high-pressure pump, and the outlet of the low-flow high-pressure pump is connected with a high-pressure output pipeline. Compared with the conventional BOG compression and recondensing process of the LNG receiving station, the BOG compression and recondensing process saves BOG compressors, has a simple structure by utilizing a Venturi injection type mixer, greatly simplifies BOG recovery energy consumption, is convenient to dismantle and overhaul, and has high popularization height and high energy utilization rate.
Description
Technical Field
The invention relates to a BOG re-condensation system and method for an LNG receiving station, and belongs to the field of natural gas.
Background
Liquefied Natural Gas (LNG) is one of the currently recognized clean petrochemical energy sources all over the world, and the demand of LNG as the preferred fuel is increasing year by year in a plurality of countries around the world. As one of the important links in the LNG industry chain, the LNG receiving station has been rapidly and rapidly developed in recent years, and the country is also greatly promoting the construction of the LNG receiving station and popularizing the application of LNG. The liquefied natural gas generates a large amount of boil-off gas (BOG) during storage in the receiving station and during outward transportation to a downstream pipeline network, and the generation of the gas is mainly caused by heat absorption of a storage tank and a pipeline and heat input of equipment during operation of the receiving station. For example, the storage tank still has a daily evaporation rate of about 0.05wt%, usually a receiving station with a handling capacity of 500 ten thousand tons, and the BOG hour amount under the ship unloading condition can reach dozens of tons.
Meanwhile, the generation of BOG is inevitable, and at present, the BOG recondensation process mainly adopted by the liquefied natural gas receiving station is to pressurize and convey the BOG to a recondensor through a BOG compressor, and the BOG is fully mixed with a small amount of low-temperature LNG liquid separated from a low-pressure external conveying main pipe, so that the BOG is condensed into LNG to enter an external conveying pipe network for gasification and external conveying. The BOG compressor has the advantages of high energy consumption, large occupied area and high operation cost. Particularly for the extension project, the problem of insufficient reserved factory buildings of the BOG compressor in the early project construction process may exist. In addition, the gas in the BOG main pipe can be directly pressurized and output to the pipe network through the BOG high-pressure compressor, and the method also has the problems of high equipment cost, high energy consumption and high operating cost.
Therefore, the search of an energy-saving and efficient BOG re-condensation process is one of important measures for realizing energy conservation and consumption reduction of the LNG receiving station.
Disclosure of Invention
The invention aims to provide a simple BOG recondensing system and method for an LNG receiving station, and the system and method have the advantages of simple process equipment, easiness in implementation, low energy consumption, energy saving and cost reduction.
The BOG recondensing system of the LNG receiving station comprises a high-pressure pump and a high-pressure gasifier;
a low-pressure outward delivery pump is arranged in the LNG storage tank, and an output pipeline of the low-pressure outward delivery pump is connected with the high-pressure pump arranged outside the LNG storage tank;
the outlet of the high-pressure pump is connected with a high-pressure delivery pipeline, and the high-pressure gasifier is arranged on the high-pressure delivery pipeline;
after the high-pressure pump, a high-pressure LNG branch pipeline is led out of the high-pressure output pipeline, the high-pressure LNG branch pipeline is connected with a liquid-phase inlet of a heat exchanger, and a BOG main pipe is connected with a gas-phase inlet of the heat exchanger;
the BOG main pipe refers to a main pipe for collecting all BOG gases in a receiving station factory area, and comprises LNG storage tanks, tank cars, wharfs and other areas;
the gas phase outlet of the heat exchanger is connected with the low-pressure suction inlet of the first Venturi injection mixer, and the liquid phase outlet of the heat exchanger is connected with the high-pressure suction inlet of the first Venturi injection mixer;
the export of first venturi injection formula blender is connected with buffering minute liquid jar, the liquid phase export of buffering minute liquid jar is connected with low discharge high-pressure pump, the exit linkage of low discharge high-pressure pump the outer pipeline of high pressure, the junction is located the entry end of high-pressure vaporizer.
In the above BOG recondensing system, the BOG recondensing system further comprises a second venturi ejector mixer;
and a gas phase outlet of the buffer liquid separation tank is connected with a low-pressure suction inlet of the second Venturi injection type mixer, and a high-pressure suction inlet of the second Venturi injection type mixer is connected with a liquid phase outlet of the heat exchanger.
In the BOG recondensing system, a liquid phase outlet of the heat exchanger is connected to a main pipeline, the main pipeline is connected to two branch pipelines, and the two branch pipelines are respectively connected to high-pressure suction ports of the first venturi injection mixer and the second venturi injection mixer, and each branch pipeline is provided with a flow regulating valve for controlling the flow of the recondensing LNG;
and a gas phase outlet pipeline of the heat exchanger is provided with a flow regulating valve for regulating BOG suction flow.
In the BOG recondensing system, the installation height of the buffer liquid separation tank is higher than that of the low-flow high-pressure pump, and the buffer liquid separation tank is used for controlling the liquid level and ensuring the starting liquid level of the low-flow high-pressure pump.
In the BOG recondensing system, a flow regulating valve is arranged on a connecting pipeline between a liquid phase outlet of the buffer liquid separation tank and the low-flow high-pressure pump, and is used for controlling the amount of LNG entering the low-flow high-pressure pump.
In the BOG recondensing system, the output line of the low-pressure external delivery pump is provided with a flow regulating valve and a check valve;
and the high-pressure LNG branch pipeline is provided with a flow regulating valve for regulating the flow of the high-pressure LNG entering the heat exchanger.
When the system is used for re-condensing BOG of the LNG receiving station, the method can be carried out according to the following steps:
LNG in the LNG storage tank is output through the low-pressure output pump in the BOG recondensing system, is pressurized through the high-pressure pump and then is input into the high-pressure output pipeline, then enters the high-pressure gasifier for gasification, and enters a high-pressure output pipeline network after being subjected to pressure regulation and metering;
BOG generated by the LNG storage tank, the tank wagon and the wharf enters the heat exchanger through the BOG main pipe;
part of high-pressure LNG pressurized by the high-pressure pump enters the heat exchanger through the high-pressure LNG branch pipeline to exchange heat with BOG; and the LNG and the BOG after heat exchange enter the first Venturi injection type mixer for mixing so as to condense the BOG into the LNG, then enter the buffer liquid separation tank, are pressurized by the low-flow high-pressure pump and then are output to the high-pressure output pipeline.
In order to guarantee the condensation effect, the part of BOG possibly existing in the buffer liquid separating tank is condensed for the second time, namely the gas phase outlet of the buffer liquid separating tank is connected with the low-pressure suction inlet of the second Venturi injection type mixer, and the liquid phase outlet of the heat exchanger is connected with the high-pressure suction inlet of the second Venturi injection type mixer, so that the uncondensed BOG in the buffer liquid separating tank is condensed.
The BOG recondensing system and the BOG recondensing method for the LNG receiving station have the following beneficial effects:
1. according to the invention, the high-pressure branch is arranged on the high-pressure external transmission pipeline of the conventional LNG receiving station and directly enters the BOG re-condensation process module, the BOG firstly passes through the heat exchanger and the high-pressure pump, then the supercooled LNG is subjected to primary heat exchange, and the cold energy of the part of LNG is fully utilized for carrying out primary cooling on the BOG.
2. Through venturi injection formula blender principle, utilize LNG self pressure, inhale low pressure BOG gas and carry out the heat transfer, saved equipment such as BOG compressor and recondensor, saved a large amount of energy consumptions.
3. The liquid after pressure reduction and temperature reduction enters a buffer liquid separation tank, if gas phase and liquid phase exist, the gas phase returns to the other Venturi injection type mixer for secondary condensation, and the effect and the sufficiency of condensation are ensured.
4. The condensed liquid enters a low-flow high-pressure pump, so that the liquid pressure is ensured to enter a high-pressure external delivery pipe network again.
5. Compared with the conventional BOG compression and recondensing process of the LNG receiving station, the BOG compression and recondensing process saves BOG compressors, has a simple structure by utilizing a Venturi injection type mixer, greatly simplifies BOG recovery energy consumption, and has the advantages of simple arrangement of the BOG recondensing module, convenience in disassembly and maintenance, high popularization height and high energy utilization rate.
Drawings
Fig. 1 is a schematic diagram of a BOG recondensing system of an LNG receiving station according to the present invention.
The respective symbols in the figure are as follows:
101 an LNG storage tank; 102 a low pressure output pump; 103 heat exchanger; 104 an LNG high pressure pump; 105 a first venturi ejector mixer; 106 second venturi ejector mixer; 107 buffer liquid separation tank; 108 a low flow high pressure pump; 109 a high pressure gasifier; 110 pressure regulating metering systems;
01, 03, 04, 05, 06, 07 flow regulating valve; 02, 08 non-return valve.
Detailed Description
The present invention will be further described with reference to the accompanying drawings, but the present invention is not limited to the following embodiments.
As shown in fig. 1, for a schematic structural diagram of a BOG recondensing system of an LNG receiving station provided by the present invention, a BOG compressor and a recondenser are reduced on the basis of a conventional LNG receiving station, a high-pressure LNG branch (a portion shown by a dashed line frame in the figure) is added to an original high-pressure external transmission pipeline, a heat exchanger and a venturi injection mixer are connected, a buffer liquid separation tank and a low-flow high-pressure pump are connected, and finally, the buffer liquid separation tank and the low-flow high-pressure pump are returned to a pipe network of the high-pressure external transmission system, and the buffer liquid separation tank is connected with a vaporizer to perform vaporization external transmission, and the vaporizer is subjected to pressure regulation and metering and then enters a downstream pipe network user.
Specifically, the BOG recondensing system of the LNG receiving station comprises the following components: the LNG receiving station comprises an original LNG storage tank 101 of the LNG receiving station, a low-pressure outward delivery pump 102, an LNG high-pressure pump 104, a high-pressure outward delivery pipeline and high-pressure vaporizer 109 and a pressure regulating and metering system 110.
Wherein, the export of low pressure defeated pump 102 is continuous with LNG high-pressure pump 104 entry, and the exit linkage high pressure defeated pipeline is outward defeated to LNG high-pressure pump 104, and sets up the liquid phase entry that branch pipeline connects heat exchanger 103 on the high pressure defeated pipeline outward, and the BOG that comes from LNG storage tank, tank wagon, pier gets into the BOG house steward, and the BOG house steward is connected the gaseous phase entry of heat exchanger 103, and BOG carries out preliminary heat transfer with high-pressure LNG in heat exchanger 103, and the LNG cold energy of make full use of supercooled state reduces the temperature of BOG. A gas phase outlet of the heat exchanger 103 is connected with a low-pressure suction inlet of the first venturi injection mixer 105, a liquid phase outlet of the heat exchanger 103 is provided with two branches, one branch is connected with a high-pressure suction inlet of the first venturi injection mixer 105, low-pressure gas from the gas phase outlet of the heat exchanger 103 is sucked into the first venturi injection mixer 105, gas and liquid phases are fully contacted in the mixer, BOG gas is condensed and then enters the buffer liquid separation tank 107, and the buffer liquid separation tank 107 is used for balancing pressure; if gas which is not fully condensed exists, a gas-phase outlet of the buffer liquid separation tank 107 is connected with a low-pressure suction inlet of the second Venturi injection type mixer 106, a second branch pipeline of a liquid-phase outlet of the heat exchanger 103 is connected with a high-pressure suction inlet of the second Venturi injection type mixer 106, the gas-phase outlet and the high-pressure suction inlet are fully mixed, part of gas which possibly exists in the buffer liquid separation tank 107 is secondarily condensed, and the condensation effect is ensured. The liquid phase outlet of the buffer liquid separation tank 107 is connected with the inlet of the small flow high pressure pump 108, the outlet of the small flow high pressure pump 108 is connected with the high pressure output pipeline, so that the BOG condensation system is finished, the high pressure output pipeline is connected with the high pressure gasifier 109, gasified by the gasifier, sent to the pressure regulating and metering system 110, and then sent to the natural gas output pipeline network for downstream users to use after pressure regulating and metering.
In the BOG recondensing system of the LNG receiving station, a flow regulating valve 01 and a check valve 02 are arranged on a pipeline connecting an outlet of a low-pressure output pump 102 and an LNG high-pressure pump 104 and are respectively used for regulating output flow and preventing the high-pressure pump from pressing pressure LNG back to a storage tank.
In the BOG recondensing system of the LNG receiving station, a flow regulating valve 03 is arranged on a high-pressure branch pipeline connecting a high-pressure output pipeline and the heat exchanger 103 and used for controlling the flow of LNG entering the heat exchanger 103.
In the BOG recondensing system of the LNG receiving station, flow regulating valves 05 and 06 are respectively arranged on pipelines connecting a liquid phase outlet of the heat exchanger 103 with the first Venturi injection mixer 105 and the second Venturi injection mixer 106 and used for controlling the flow of LNG for recondensing.
In the BOG recondensing system of the LNG receiving station of the present invention, a flow regulating valve 07 is disposed on a connection line from an outlet of the buffer liquid separation tank 107 to an inlet of the low-flow high-pressure pump 108, for controlling an amount of LNG entering the low-flow high-pressure pump 108.
In the BOG recondensing system of the LNG receiving station of the present invention, the installation height of the buffer liquid separation tank 107 is higher than that of the low-flow high-pressure pump 108, so as to ensure the inlet liquid level height of the low-flow high-pressure pump 108.
The BOG recondensing system of the LNG receiving station performs BOG condensation in the following process:
the LNG in the LNG storage tank is exported by the low-pressure export pump 102, pressurized by the LNG high-pressure pump 104, imported into the high-pressure export pipeline, and then gasified in the high-pressure gasifier 109, and then enters the high-pressure export pipeline network after being measured by pressure regulation. BOG generated by the LNG storage tank, the tank car and the wharf enters the heat exchanger 103 through a BOG main pipe; part of the high-pressure LNG pressurized by the LNG high-pressure pump 104 enters the heat exchanger 103 through the high-pressure LNG branch line to exchange heat with the BOG; the LNG and the BOG after heat exchange enter a first Venturi injection type mixer 105 to be mixed so as to condense the BOG into the LNG, then the LNG enters a buffer liquid separation tank 107, and the LNG and the BOG are pressurized by a pressure pump of a small-flow high-pressure pump 108 and then are output to a high-pressure output pipeline.
In order to ensure the condensation effect, part of BOG possibly existing in the buffer liquid separation tank 107 is condensed for the second time, that is, the gas phase outlet of the buffer liquid separation tank 107 and the low-pressure suction port of the second venturi jet mixer 106 are connected, and the liquid phase outlet of the heat exchanger 103 and the high-pressure suction port of the second venturi jet mixer 106 are connected, so that the uncondensed BOG in the buffer liquid separation tank 107 is condensed.
Taking a certain LNG receiving station as an example, the working process of the BOG recondensing system of the LNG receiving station of the present invention is described as follows:
the pressure gas supply of a downstream pipe network of a certain LNG receiving station is 9MPaG, the receiving station has 4 LNG storage tanks with 22 ten thousand square, 15 tons of BOG are generated in each hour under the normal operation state, the pressure of the BOG is about 18KPaG, and the temperature is about-140 ℃ to-120 ℃. LNG in the LNG storage tank 1 is pressurized to 9.5MPaG through the low-pressure outward delivery pump 102 and the LNG high-pressure pump 104, low-flow high-pressure LNG is separated and enters the heat exchanger 103, after primary heat exchange is carried out with the BOG, the low-flow high-pressure LNG enters the liquid suction inlet of the first Venturi injection mixer 105, meanwhile, the outlet BOG of the heat exchanger 103 enters the gas injection inlet of the first Venturi injection mixer 105, after mixing, the BOG is condensed to LNG and enters the downstream buffer liquid separation tank 107, part of uncondensed BOG enters the second Venturi injection mixer 106 through the gas phase outlet of the buffer liquid separation tank 107, and secondary heat exchange is carried out with the second LNG. Finally, the LNG is completely condensed to LNG, the LNG is pressurized to 9.5MPaG by a low-flow LNG high-pressure pump 108 and then enters a high-pressure output pipeline, and the LNG enters a high-pressure gasifier 109 for next gasification, is subjected to pressure regulation and measurement by a pressure regulation and measurement system 110 and then enters a high-pressure output pipeline network. During the operation process, the control is carried out by adjusting each flow regulating valve.
The above examples are only for illustrating the present invention, and the structure, connection mode and the like of the components can be changed, and all equivalent changes and modifications based on the technical scheme of the present invention should not be excluded from the protection scope of the present invention.
Claims (2)
1. A BOG recondensing system of an LNG receiving station comprises a high-pressure pump and a high-pressure gasifier;
a low-pressure outward delivery pump is arranged in the LNG storage tank, and an output pipeline of the low-pressure outward delivery pump is connected with the high-pressure pump arranged outside the LNG storage tank;
the outlet of the high-pressure pump is connected with a high-pressure delivery pipeline, and the high-pressure gasifier is arranged on the high-pressure delivery pipeline;
after the high-pressure pump, a high-pressure LNG branch pipeline is led out of the high-pressure output pipeline, the high-pressure LNG branch pipeline is connected with a liquid-phase inlet of a heat exchanger, and a BOG main pipe is connected with a gas-phase inlet of the heat exchanger;
the gas phase outlet of the heat exchanger is connected with the low-pressure suction inlet of the first Venturi injection mixer, and the liquid phase outlet of the heat exchanger is connected with the high-pressure suction inlet of the first Venturi injection mixer;
the outlet of the first Venturi injection type mixer is connected with a buffer liquid separating tank, the liquid phase outlet of the buffer liquid separating tank is connected with a low-flow high-pressure pump, the outlet of the low-flow high-pressure pump is connected with the high-pressure output pipeline, and the connection position is located at the inlet end of the high-pressure gasifier;
the BOG recondensing system further comprises a second Venturi injection mixer;
a gas phase outlet of the buffer liquid separation tank is connected with a low-pressure suction inlet of the second Venturi injection type mixer, and a high-pressure suction inlet of the second Venturi injection type mixer is connected with a liquid phase outlet of the heat exchanger;
the liquid phase outlet of the heat exchanger is connected with a main pipeline, the main pipeline is connected with two branch pipelines which are respectively connected with the high-pressure suction ports of the first Venturi injection type mixer and the second Venturi injection type mixer, and the branch pipelines are provided with flow regulating valves;
the mounting height of the buffer liquid separation tank is higher than that of the low-flow high-pressure pump;
a liquid phase outlet of the buffer liquid separation tank and a connecting pipeline of the low-flow high-pressure pump are provided with flow regulating valves;
the output pipeline of the low-pressure output pump is provided with a flow regulating valve and a check valve;
and a flow regulating valve is arranged on the high-pressure LNG branch pipeline.
2. A BOG recondensation method for an LNG receiving station comprises the following steps:
LNG in an LNG storage tank is exported by the low-pressure export pump in the BOG recondensing system of the LNG receiving station of claim 1, is pressurized by the high-pressure pump and then is imported into the high-pressure export pipeline, then enters the high-pressure gasifier for gasification, and enters a high-pressure export pipeline network after being subjected to pressure regulation and metering;
BOG generated by the LNG storage tank, the tank wagon and the wharf enters the heat exchanger through the BOG main pipe;
part of high-pressure LNG pressurized by the high-pressure pump enters the heat exchanger through the high-pressure LNG branch pipeline to exchange heat with BOG; the LNG and the BOG after heat exchange enter the first Venturi injection type mixer to be mixed so as to condense the BOG into the LNG, then the LNG and the BOG enter the buffer liquid separation tank, and the LNG and the BOG are pressurized by the low-flow high-pressure pump and then are output to the high-pressure output pipeline;
the method further comprises the steps of:
and the gas phase outlet of the buffer liquid separation tank is connected with the low-pressure suction inlet of the second Venturi injection type mixer, and the liquid phase outlet of the heat exchanger is connected with the high-pressure suction inlet of the second Venturi injection type mixer, so that the uncondensed BOG in the buffer liquid separation tank is condensed.
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Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4422301A (en) * | 1980-05-07 | 1983-12-27 | Robert H. Watt | Evaporative loss reduction |
| CN103225740A (en) * | 2013-04-22 | 2013-07-31 | 中国海洋石油总公司 | BOG processing system utilizing pressure energy of LNG receiving station |
| CN205156507U (en) * | 2015-11-23 | 2016-04-13 | 重庆耐德工业股份有限公司 | BOG is equipment of liquefying again |
| CN106287221A (en) * | 2015-06-02 | 2017-01-04 | 中国石油化工股份有限公司 | A kind of liquefied natural gas receiving station boil-off gas directly exports technique and device |
| CN206191270U (en) * | 2016-11-15 | 2017-05-24 | 武汉三江航天远方科技有限公司 | Liquefied natural gas transfer post tank wagon evaporation gas recycle system |
| CN107859870A (en) * | 2017-09-15 | 2018-03-30 | 深圳市燃气集团股份有限公司 | A kind of method of liquefied natural gas BOG liquefaction recycling |
| CN210266718U (en) * | 2019-07-24 | 2020-04-07 | 中国海洋石油集团有限公司 | LNG receiving station high-pressure pump system |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107940235B (en) * | 2017-11-09 | 2018-10-16 | 大连理工大学 | Ultra-low temperature surroundings based on recycling incoming-flow pressure energy take hot day right controlled atmosphere temperature voltage-regulating system |
-
2020
- 2020-06-01 CN CN202010483761.2A patent/CN111637359B/en active Active
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4422301A (en) * | 1980-05-07 | 1983-12-27 | Robert H. Watt | Evaporative loss reduction |
| CN103225740A (en) * | 2013-04-22 | 2013-07-31 | 中国海洋石油总公司 | BOG processing system utilizing pressure energy of LNG receiving station |
| CN106287221A (en) * | 2015-06-02 | 2017-01-04 | 中国石油化工股份有限公司 | A kind of liquefied natural gas receiving station boil-off gas directly exports technique and device |
| CN205156507U (en) * | 2015-11-23 | 2016-04-13 | 重庆耐德工业股份有限公司 | BOG is equipment of liquefying again |
| CN206191270U (en) * | 2016-11-15 | 2017-05-24 | 武汉三江航天远方科技有限公司 | Liquefied natural gas transfer post tank wagon evaporation gas recycle system |
| CN107859870A (en) * | 2017-09-15 | 2018-03-30 | 深圳市燃气集团股份有限公司 | A kind of method of liquefied natural gas BOG liquefaction recycling |
| CN210266718U (en) * | 2019-07-24 | 2020-04-07 | 中国海洋石油集团有限公司 | LNG receiving station high-pressure pump system |
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| CN111637359A (en) | 2020-09-08 |
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