CN1332327A - Liquefied natural gas gasifying supplier - Google Patents
Liquefied natural gas gasifying supplier Download PDFInfo
- Publication number
- CN1332327A CN1332327A CN 01115151 CN01115151A CN1332327A CN 1332327 A CN1332327 A CN 1332327A CN 01115151 CN01115151 CN 01115151 CN 01115151 A CN01115151 A CN 01115151A CN 1332327 A CN1332327 A CN 1332327A
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- liquefied natural
- natural gas
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- pipeline
- pipe
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Abstract
The invention provides a device for gasifying liquefied natural gas. A tank car containing the source of liquefied natural gas is connected to pressure oil tank under low temperature through pipeline. The oil tank is connected to a gasifier and a pressure regulator and at last to gas line network. The tand with pressure amplifier is connected by flow automatically to a gasifier with normal air temperature, then connected in series to a gasifier with water bath style. There is recovering setup installed on the tank car and the oil tank to retrieve vaporized gas as well as a exhaust setup to empty the gas. Thus, the liquefied natural gas is gasified fully to meet the need of providing gas continuously, reducing consumption of energy, lowering operation cost. The invention has solved the problem of storing liquefied natural gas at low temperature and the problem of retrieving vaporized gas, therefor it is also prevented from explosion and fire.
Description
(1) technical field under:
The present invention relates to the improvement of LNG Liquefied natural gas storage, confession, transfer device, especially a kind of liquefied natural gas gasifying supplier, it belongs to the defeated safety technique field of LNG Liquefied natural gas storage.
(2) background technique:
In the prior art for storage, confession, transferring technology requirement, lay special stress on fire-fighting requirement and the safety dumping requirement of this multicomponent mixture of rock gas.Existing city liquefied natural gas gasifying supply station is the LNG Liquefied natural gas that LNG Liquefied natural gas source of the gas conveying trough tank car is shipped, and the pressurized machine that uses this groove tank car to carry at unloading deck is pressed into LNG Liquefied natural gas in the low temperature liquid container and stores.LNG Liquefied natural gas in this jar through process treating such as gasification, pressure regulation, can enter pipe network again, sends into each user.In the process treatment process of this LNG Liquefied natural gas, produce boil-off gas (Boil Off gas) through regular meeting.LNG Liquefied natural gas such as untimely eliminating that this part has gasified can make the overpressure of gas-phase space in the low temperature liquid container, even the gas pressure in whole gasification supply station space are too high, so that are blasted, and cause fire.Low at northern city winter temperature generally at-10--20 ℃, the use air-heating type gasifier, easy frosting in winter so just influences heat-transfer effect, and the vaporization ability of air-heating type gasifier is reduced; And if the gas outlet temperature of gasification in winter just can not satisfy the demand of air feed less than 0 ℃.Therefore traditional air-heating type gasifier can not satisfy the demand of normal air feed.For adapting to the cryogenic property and the inflammable danger of LNG Liquefied natural gas, press for the safe fire fighting problem that solves city liquefied natural gas gasifying supply station.
(3) technology contents:
The problem that the present invention need solve is realized by following technological scheme, developed a kind of liquefied natural gas gasifying supplier, it is to be turned in the Low-temperature pressure liquid container by pipeline by liquefaction source of the gas tank car, and vaporizer connected again by this jar and pressure governor finally inserts gas line network.Have pressurized machine this jar self-flow type turn on air-heating type gasifier after, water bath type gasifier is gone in series connection again; Be provided with boil-off gas recovering mechanism and emptying gas discharging mechanism at this tank car and this jar.
The described Low-temperature pressure liquid container of this liquefied natural gas gasifying supplier, adiabatic form of its jar or employing vacuum insulation liquid container, or adopt composite-type powder isolation liquid container; Wherein thermoinsulation material is selected pearlife or aluminium foil for use.
The described Low-temperature pressure liquid container of this liquefied natural gas gasifying supplier, the outer liquid phase inlet/outlet pipe place of its jar is provided with Emergeny Cutoff Valves.
The described air-heating type gasifier of this liquefied natural gas gasifying supplier, it is the air-heating type gasifier of at least two group parallel connections; This device is made of evaporation part and heating unit, and wherein the evaporation part is to connect all heat conductive tubes in parallel by the end plate pipe to constitute, and the heating unit is by elbow series connection all-in-one-piece heat conductive tube; The cross section of this pipe is star fin shape.
The described air-heating type gasifier of this liquefied natural gas gasifying supplier, its heat exchange form or be the forced ventilation formula, or be natural ventilation type, or be water spraying type; Wherein, forced ventilation formula vaporizer is to be provided with fan and fan housing thereof in all heat conductive tubes outside; The natural ventilation type vaporizer is that the spacing between all heat conductive tubes is controlled in the space of favourable ventilation.
The described water bath type gasifier of this liquefied natural gas gasifying supplier, it walks LNG Liquefied natural gas for to be provided with the heat conduction coil pipe in being connected to the hot water tank of hot water in pipe, the capacity hot water supply is arranged outside the pipe; Be provided with safety valve and Emergeny Cutoff Valves in this pipe inlet, temperature alarm and Emergeny Cutoff Valves in this pipe outlet port is provided with pipe.
The described boil-off gas recovering mechanism of this liquefied natural gas gasifying supplier, it comprises gas heater and gas knock out drum and connecting tube thereof; On this knock out drum pipeline, be provided with the pressure governor of control tank pressure.
The described emptying gas discharging mechanism of this liquefied natural gas gasifying supplier, it comprises: emptying gas heater that pipeline connects and high some discharge drum.
The described liquefaction source of the gas of this liquefied natural gas gasifying supplier tank car, it turns on the pipeline of unloading of Low-temperature pressure liquid container, also be connected to the reflux pipeline that pipe branch is drawn before the air-heating type gasifier, constitute that to keep this tank car pipeline of unloading be the precooling pipeline that is in low-temperature condition.
The described gas line network of this liquefied natural gas gasifying supplier also will be provided with the odorization machine structure on the pressure regulation pipeline before it.
The good effect that liquefied natural gas gasifying supplier of the present invention brought is:
(1) because this installs behind air-heating type gasifier, and water bath type gasifier is gone in series connection, the cascaded structure that adopts air temperature type to combine with water-bath type.Making full use of nature temperature in summer like this gets final product liquefied natural gas gasifying by air-heating type gasifier; Adopt water bath type gasifier in the winter time as a supplement,, LNG Liquefied natural gas is fully gasified, both can satisfy the needs of continuous air feed by other hot water or electric heating, capable of reducing energy consumption again, reduce operating cost.
(2) owing to designed the boil-off gas recovering mechanism that comprises gas heater and gas knock out drum and connecting tube thereof, and on this knock out drum, be provided with the pressure governor of control tank pressure, solved the boil-off gas (Boil Off gas) that produces in the liquefied natural gas process processing procedure and filled the air in whole gasification supply station space and can't reclaim problem.
(3) owing to designed jars such as Low-temperature pressure liquid container, the liquid in the device outside, the Emergeny Cutoff Valves at gas phase inlet/outlet pipe place, safety valve, the interior temperature alarm of pipe, thereby avoided because of the rock gas evaporation, pipeline pressure increases excessive, and causes blasting, and causes explosion-proof, the fire fighting problem of fire.
(4) owing to designed the precooling of the adiabatic form of Low-temperature pressure liquid container and the liquefaction source of the gas tank car pipeline of unloading.Make this jar or adopt the vacuum insulation liquid container, or adopt composite-type powder isolation liquid container; Wherein thermoinsulation material is selected pearlife or aluminium foil for use, has solved LNG Liquefied natural gas low-temperature storage problem.
(4) embodiments of the invention further specify as follows in conjunction with the accompanying drawings:
Fig. 1 is: the equipment flowsheet schematic representation of this liquefied natural gas gasifying supplier.
Fig. 2 is: the air-heating type gasifier structural representation.
Fig. 3 is: the heat conductive tube structural representation of air-heating type gasifier.
Fig. 4 is: the water bath type gasifier structural representation.
Referring to Fig. 1-4, build up 12 * 10
4Nm
3The liquefied natural gas gasifying supplier of/d, it is to be turned in the Low-temperature pressure liquid container 2 by pipeline by liquefaction source of the gas tank car 1, this jar 2 is connected vaporizer 3,4 and the pressure governor 5 final gas line networks 6 that insert again.Have pressurized machine 7 these jar 2 self-flow types turn on air-heating type gasifier 3 after, water bath type gasifier 4 is gone in series connection again; Be provided with boil-off gas recovering mechanism and emptying gas discharging mechanism at this tank car 1 and this jar 2.
The described Low-temperature pressure liquid container 2 of this liquefied natural gas gasifying supplier, adiabatic form of its jar 2 or employing vacuum insulation liquid container 2, or adopt composite-type powder isolation liquid container 2; Wherein thermoinsulation material is selected pearlife or aluminium foil (not drawing among the figure) for use.
The described Low-temperature pressure liquid container 2 of this liquefied natural gas gasifying supplier, its jar 2 outer liquid phase inlet/outlet pipe 8,9 places are provided with Emergeny Cutoff Valves 10.
The described air-heating type gasifier 3 of this liquefied natural gas gasifying supplier, it is the air-heating type gasifier 3 of at least two group parallel connections; This device 3 is made of evaporation part 11 and heating unit 12, and wherein evaporation part 11 is to connect all heat conductive tubes 14 in parallel by end plate pipe 13 to constitute, and heating unit 12 is by elbow 15 series connection all-in-one-piece heat conduction 16 pipes; The cross section of this pipe 14,16 is star fin shape, as shown in Figure 3.
The described air-heating type gasifier 3 of this liquefied natural gas gasifying supplier, its heat exchange form or be the forced ventilation formula, or be natural ventilation type, or be water spraying type; Wherein, forced ventilation formula vaporizer is to be provided with fan and fan housing (not drawing among the figure) thereof in all heat conductive tubes outside; Natural ventilation type vaporizer 3 is that the spacing between all heat conductive tubes 14,16 is controlled in the space of favourable ventilation.
The described water bath type gasifier 4 of this liquefied natural gas gasifying supplier, it walks LNG Liquefied natural gas for be provided with heat conduction coil pipe 18 in the hot water tank 17 that is connected to hot water in pipe 18, and the capacity hot water supply is arranged outside the pipe 18; Manage 18 outlet ports 19 at this and be provided with temperature alarm 21 in safety valve 20 and the pipe, manage 18 inlets 22 at this and be provided with Emergeny Cutoff Valves 23.
The described boil-off gas recovering mechanism of this liquefied natural gas gasifying supplier, it comprises gas heater 24 and gas knock out drum 25 and connecting tube 26 thereof; On these knock out drum 25 pipelines 26, be provided with the pressure governor 27,28 of control tank pressure.
The described emptying gas discharging mechanism of this liquefied natural gas gasifying supplier, it comprises: emptying gas heater 30 that pipeline 29 connects and high some discharge drum 31.
The described liquefaction source of the gas of this liquefied natural gas gasifying supplier tank car 1, it turns on and also is connected to the reflux pipeline 33 that the pipe branch before the air-heating type gasifier 2 is drawn on the pipeline 32 of unloading on the Low-temperature pressure liquid container 2, and constitutes that to keep this tank car 1 pipeline 32 of unloading are the precooling pipelines that are in low-temperature condition.
The described gas line network 6 of this liquefied natural gas gasifying supplier also will be provided with odorization machine structure 35 on the pipeline 34 of pressure governor 5 before it.
Claims (10)
1. liquefied natural gas gasifying supplier, it is to be turned in the Low-temperature pressure liquid container by pipeline by liquefaction source of the gas tank car, vaporizer connected again by this jar and pressure governor finally inserts gas line network, it is characterized in that: after having this jar self-flow type ground connection air-heating type gasifier of pressurized machine, water bath type gasifier is gone in series connection again; Be provided with boil-off gas recovering mechanism and emptying gas discharging mechanism at this tank car and this jar.
2. according to the described liquefied natural gas gasifying supplier of claim 1, it is characterized in that: described Low-temperature pressure liquid container, adiabatic form of its jar or employing vacuum insulation liquid container, or adopt composite-type powder isolation liquid container; Wherein thermoinsulation material is selected pearlife or aluminium foil for use.
3. according to claim 1 or 2 described liquefied natural gas gasifying suppliers, it is characterized in that: described Low-temperature pressure liquid container, the outer liquid phase inlet/outlet pipe place of its jar is provided with Emergeny Cutoff Valves.
4. according to the described liquefied natural gas gasifying supplier of claim 1, it is characterized in that: described air-heating type gasifier, it is the air-heating type gasifier of at least two parallel connections; This device is made of evaporation part and heating unit, and wherein the evaporation part is to connect all heat conductive tubes in parallel by the end plate pipe to constitute, and the heating unit is by elbow series connection all-in-one-piece heat conductive tube; The cross section of this pipe is star fin shape.
5. according to claim 1 or 4 described liquefied natural gas gasifying suppliers, it is characterized in that: described air-heating type gasifier, its heat exchange form or be the forced ventilation formula, or be natural ventilation type, or be water spraying type; Wherein, forced ventilation formula vaporizer is to be provided with fan and fan housing thereof in all heat conductive tubes outside; The natural ventilation type vaporizer is that the spacing between all heat conductive tubes is controlled in the space of favourable natural ventilation.
6. according to the described liquefied natural gas gasifying supplier of claim 1, it is characterized in that: described water bath type gasifier, it walks LNG Liquefied natural gas for to be provided with the heat conduction coil pipe in being connected to the hot water tank of hot water in pipe, the capacity hot water supply is arranged outside the pipe; Be provided with Emergeny Cutoff Valves in this pipe inlet, temperature alarm and safety valve in this pipe outlet port is provided with pipe.
7. according to the described liquefied natural gas gasifying supplier of claim 1, it is characterized in that: described boil-off gas recovering mechanism, it comprises gas heater and gas knock out drum and connecting tube thereof; On this knock out drum pipeline, be provided with the pressure governor of control tank pressure.
8. according to the described liquefied natural gas gasifying supplier of claim 1, it is characterized in that: described emptying gas discharging mechanism, it comprises: emptying gas heater that pipeline connects and high some discharge drum.
9. according to the described liquefied natural gas gasifying supplier of claim 1, it is characterized in that: described liquefaction source of the gas tank car, it turns on the pipeline of unloading on the Low-temperature pressure liquid container, also be connected to pipeline before the air-heating type gasifier, the reflux pipeline that branch draws, pipeline is the precooling pipeline that is in low-temperature condition thereby this tank car of formation maintenance is unloaded.
10. according to the described liquefied natural gas gasifying supplier of claim 1, it is characterized in that: described gas line network also will be provided with the odorization machine structure on the pressure regulation pipeline before it.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 01115151 CN1332327A (en) | 2001-07-18 | 2001-07-18 | Liquefied natural gas gasifying supplier |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 01115151 CN1332327A (en) | 2001-07-18 | 2001-07-18 | Liquefied natural gas gasifying supplier |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN1332327A true CN1332327A (en) | 2002-01-23 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 01115151 Pending CN1332327A (en) | 2001-07-18 | 2001-07-18 | Liquefied natural gas gasifying supplier |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN1332327A (en) |
Cited By (12)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN100404375C (en) * | 2003-05-09 | 2008-07-23 | 巴特勒能源同盟有限公司 | Method and apparatus for dispensing compressed natural gas and liquified natural gas to natural gas powered vehicles. |
| CN101074760B (en) * | 2006-05-19 | 2011-01-12 | 大宇造船海洋株式会社 | Method and apparatus for supplying natural gas to gas demand sides |
| CN102650373A (en) * | 2012-06-11 | 2012-08-29 | 成都华气厚普机电设备股份有限公司 | L-CNG (Liquid-Compressed Natural Gas) skid-mounted device without energy consumption |
| 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 |
| CN104094041A (en) * | 2012-02-07 | 2014-10-08 | 岩谷产业株式会社 | Gas supply device |
| CN104615168A (en) * | 2014-12-03 | 2015-05-13 | 金川集团股份有限公司 | Automatic control system for pressure of liquid chlorine gasification device |
| CN104712904A (en) * | 2015-03-13 | 2015-06-17 | 青岛新奥燃气设施开发有限公司 | Emergent LNG supply device |
| CN105156883A (en) * | 2015-10-20 | 2015-12-16 | 沧州市天龙燃烧设备有限公司 | LNG gasification pressure regulating device and LNG gasification pressure regulating process |
| CN106195623A (en) * | 2016-07-12 | 2016-12-07 | 安徽淮化股份有限公司 | A kind of air separation unit nitrogen-sealed gas track remodelling method |
| CN107152608A (en) * | 2017-07-10 | 2017-09-12 | 西安森兰科贸有限责任公司 | A kind of supercharging explosion-protection equipment certainly gasified for cryogenic liquid |
| CN111306443A (en) * | 2020-02-19 | 2020-06-19 | 浙江杭嘉鑫清洁能源有限公司 | Comprehensive utilization of cold and heat energy and demisting process in natural gas gasification process |
| CN111630312A (en) * | 2017-11-24 | 2020-09-04 | 前苏伊士环能集团 | Plant and method for providing liquefied natural gas |
-
2001
- 2001-07-18 CN CN 01115151 patent/CN1332327A/en active Pending
Cited By (15)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN100404375C (en) * | 2003-05-09 | 2008-07-23 | 巴特勒能源同盟有限公司 | Method and apparatus for dispensing compressed natural gas and liquified natural gas to natural gas powered vehicles. |
| CN101074760B (en) * | 2006-05-19 | 2011-01-12 | 大宇造船海洋株式会社 | Method and apparatus for supplying natural gas to gas demand sides |
| CN104094041B (en) * | 2012-02-07 | 2016-01-20 | 岩谷产业株式会社 | Gas supply device |
| CN104094041A (en) * | 2012-02-07 | 2014-10-08 | 岩谷产业株式会社 | Gas supply device |
| CN102650373A (en) * | 2012-06-11 | 2012-08-29 | 成都华气厚普机电设备股份有限公司 | L-CNG (Liquid-Compressed Natural Gas) skid-mounted device without energy consumption |
| 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 |
| CN104615168A (en) * | 2014-12-03 | 2015-05-13 | 金川集团股份有限公司 | Automatic control system for pressure of liquid chlorine gasification device |
| CN104615168B (en) * | 2014-12-03 | 2017-04-05 | 金川集团股份有限公司 | Liquid chlorine gasification device pressure automatic control system |
| CN104712904A (en) * | 2015-03-13 | 2015-06-17 | 青岛新奥燃气设施开发有限公司 | Emergent LNG supply device |
| CN105156883A (en) * | 2015-10-20 | 2015-12-16 | 沧州市天龙燃烧设备有限公司 | LNG gasification pressure regulating device and LNG gasification pressure regulating process |
| CN106195623A (en) * | 2016-07-12 | 2016-12-07 | 安徽淮化股份有限公司 | A kind of air separation unit nitrogen-sealed gas track remodelling method |
| CN107152608A (en) * | 2017-07-10 | 2017-09-12 | 西安森兰科贸有限责任公司 | A kind of supercharging explosion-protection equipment certainly gasified for cryogenic liquid |
| CN111630312A (en) * | 2017-11-24 | 2020-09-04 | 前苏伊士环能集团 | Plant and method for providing liquefied natural gas |
| CN111630312B (en) * | 2017-11-24 | 2022-04-01 | 前苏伊士环能集团 | Plant and method for providing liquefied natural gas |
| CN111306443A (en) * | 2020-02-19 | 2020-06-19 | 浙江杭嘉鑫清洁能源有限公司 | Comprehensive utilization of cold and heat energy and demisting process in natural gas gasification process |
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