CN2492766Y - Liquefied natural gas gasifying and supplying plant - Google Patents
Liquefied natural gas gasifying and supplying plant Download PDFInfo
- Publication number
- CN2492766Y CN2492766Y CN 01244008 CN01244008U CN2492766Y CN 2492766 Y CN2492766 Y CN 2492766Y CN 01244008 CN01244008 CN 01244008 CN 01244008 U CN01244008 U CN 01244008U CN 2492766 Y CN2492766 Y CN 2492766Y
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- gas
- natural gas
- liquefied natural
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- pipeline
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Abstract
The utility model relates to a gasification gas supply device of liquified natural gas, a liquified gas source tanker communicates with a low-temperature pressure liquid storage tank via a pipe, and the tank communicates with a gasifier and a pressure regulator and is finally connected into a gas transfer pipe network. After self-flowingly communicating with an air temperature type gasifier, the tank with a supercharger is cascaded with a water bath type gasifier. A vaporized gas recovery mechanism and a gas-emptying discharge mechanism are provided on the tanker and the tank to sufficiently gasify liquified natural gas, and therefore not only is the need of continuous gas supply satisfied but also the energy consumption and operation cost is reduced; the utility model resolves the problem of the low-temperature storage of liquified natural gas as well as the problem of the recovery of the vaporized gas, thus avoding the occurrence of explosion and the problems of the prevention of explosion causing fire and fire control.
Description
(1) technical field under:
The utility model relates to the improvement of liquefied natural gas storage, confession, transfer device, especially a kind of liquefied natural gas gasifying supplier, and it belongs to the defeated safe practice field of liquefied natural gas storage.
(2) background technology:
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 natural gas.Existing city liquefied natural gas gasifying supply station is the liquefied natural gas that liquefied natural gas source of the gas conveying trough tank car is shipped, and the booster that uses this groove tank car to carry at unloading deck is pressed into liquefied natural gas in the low temperature fluid reservoir and stores.Liquefied natural gas in this jar through PROCESS FOR TREATMENT such as gasification, pressure regulation, can enter pipe network again, sends into each user.In the process treatment process of this liquefied natural gas, produce boil-off gas (Boil Off gas) through regular meeting.Liquefied natural gas such as untimely eliminating that this part has gasified can make the hypertonia of gas-phase space in the low temperature fluid reservoir, even the gas pressure in whole gasification supply station space are too high, so that are blasted, and cause fire.Use air-heating type gasifier generally at-10--20 ℃ in that northern city winter temperature is low, 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 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 utility model need solve is realized by following technical scheme, developed a kind of liquefied natural gas gasifying supplier, it is to be connected by pipeline by liquefaction source of the gas tank car to enter in the low-temperature pressure fluid reservoir, and gasifier connected again by this jar and pressure regulator finally inserts gas line network.After having this jar gravity flow ground connection air-heating type gasifier of booster, 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 fluid reservoir of this liquefied natural gas gasifying supplier, adiabatic form of its jar or employing vacuum insulation fluid reservoir, or adopt primary-secondary type powder isolation fluid reservoir; Wherein heat-insulating material is selected pearlife or aluminium foil for use.The interior jar of this jar is made for the Cr18Ni9 stainless steel; Inner core is that 9Ni steel matter is made; This jar shell is a carbon steel material.
The described low-temperature pressure fluid reservoir of this liquefied natural gas gasifying supplier, the outer liquid phase import and export pipe place of its jar is provided with quick action emergency valve.The bearing capacity of this jar is 1-0.3Mpa, and is low temperature resistant below-145 ℃.
The described air-heating type gasifier of this liquefied natural gas gasifying supplier, it is the air-heating type gasifier of at least two parallel connections; This device is made of evaporation part and heating part, and wherein the evaporation part is to connect all heat pipes in parallel by the end plate pipe to constitute, and the heating part is by union elbow series connection all-in-one-piece heat pipe; 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 gasifier is to be provided with fan and fan housing thereof in all heat pipes outside; The natural ventilation type gasifier is that the spacing between all heat pipes is controlled in the space of favourable gravity-flow ventilation.
The described water bath type gasifier of this liquefied natural gas gasifying supplier, it walks liquefied natural gas for to be provided with the heat conduction coil pipe in being connected to the hot water storgae of hot water in pipe, the capacity hot water supply is arranged outside the pipe; Be provided with safety valve and quick action emergency valve in this pipe import department, temperature alarm and quick action emergency valve in this pipe exit is provided with pipe.
The described boil-off gas recovering mechanism of this liquefied natural gas gasifying supplier, it comprises gas heater and gas surge tank and connecting pipe thereof; On this surge tank pipeline, be provided with the pressure regulator 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 on the low-temperature pressure fluid reservoir, also be connected to from air-heating type gasifier pipeline before, the reflux pipeline that branch draws, pipeline is in the precooling pipeline of low-temperature condition thereby this tank car of formation maintenance is unloaded.
The described gas line network of this liquefied natural gas gasifying supplier also will be provided with the odorization machine structure on the pipeline of pressure regulator before it.
The good effect that liquefied natural gas gasifying supplier of the present utility model 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,, liquefied natural gas is fully gasified, both can satisfy the needs of continuous air feed by other hot water or electrical 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 surge tank and connecting pipe thereof, and on this surge tank, be provided with the pressure regulator of controlling tank pressure, solve boil-off gas (Boil Off gas) the superpressure discharging that produces in the liquefied natural gas process processing procedure and can't reclaim problem.
(3) owing to designed jars such as low-temperature pressure fluid reservoir, the liquid in the device outside, quick action emergency valve, safety valve, the temperature alarm at gas phase import and export pipe place, thereby avoided because of the natural gas evaporation, pipeline pressure increases excessive, and causes blasting, and causes explosion-proof, the fire fighting problem of fire.
(4), make this jar or adopt the vacuum insulation fluid reservoir or employing primary-secondary type powder isolation fluid reservoir owing to designed the adiabatic form of low-temperature pressure fluid reservoir; Wherein heat-insulating material is selected pearlife or aluminium foil for use, has solved liquefied natural gas low-temperature storage problem.
(5) owing to designed the precooling pipeline of unloading of liquefaction source of the gas tank car, having solved unloads because of liquefied natural gas is interrupted the problem that the pipeline of unloading that produces can not keep low temperature.Like this, not only kept the low-temperature condition of pipeline of unloading, but also reduced the load of air-heating type gasifier, saved the energy, killed two birds with one stone.
(4) embodiment of the present utility model further specifies as follows in conjunction with the accompanying drawings: protection domain of the present utility model not only is confined in following examples.
Fig. 1 is: the equipment flowsheet schematic diagram of this liquefied natural gas gasifying supplier.
Fig. 2 is: the structural representation of air-heating type gasifier.
Fig. 3 is: the heat pipe structural representation of air-heating type gasifier.
Fig. 4 is: the structural representation of water bath type gasifier.
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 fluid reservoir 2 by pipeline by liquefaction source of the gas tank car 1, this jar 2 is connected gasifier 3,4 and the pressure regulator 5 final gas line networks 6 that insert again.Have booster 7 these jar 2 gravity flows 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 fluid reservoir 2 of this liquefied natural gas gasifying supplier, the adiabatic form of its jar 2, or adopt vacuum insulation fluid reservoir 2, or adopt primary-secondary type powder isolation fluid reservoir 2; Wherein heat-insulating material is selected pearlife or aluminium foil (not drawing among the figure) for use.
The described low-temperature pressure fluid reservoir 2 of this liquefied natural gas gasifying supplier, its jar 2 outer liquid phase import and export pipe 8,9 places are provided with quick action emergency valve 10,11.
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 part 12, and wherein evaporation part 11 is to connect all heat pipes 14 in parallel by end plate pipe 13 to constitute, and heating part 12 is by union elbow 15 series connection all-in-one-piece heat pipes 16; 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 gasifier 3 is to be provided with fan and fan housing (not drawing among the figure) thereof in all heat pipes 14,16 outsides; Natural ventilation type gasifier 3 is that the spacing between all heat pipes 14,16 is controlled in the space that helps ventilating.
The described water bath type gasifier 4 of this liquefied natural gas gasifying supplier, it walks liquefied natural gas for be provided with heat conduction coil pipe 18 in the hot water storgae 17 that is connected to hot water in pipe 18, and the capacity hot water supply is arranged outside the pipe 18; Manage 18 exits 19 at this and be provided with temperature alarm 20 in safety valve 20 and the pipe, manage 18 import departments 22 at this and be provided with quick action emergency valve 23.
The described boil-off gas recovering mechanism of this liquefied natural gas gasifying supplier, it comprises gas heater 25 and gas surge tank 26 and connecting pipe (being solid line among the figure) thereof; On these surge tank 26 pipelines, be provided with the pressure regulator 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 pipeline before the air-heating type gasifier 3 on the pipeline 32 of unloading on the low-temperature pressure fluid reservoir 2, the reflux pipeline 33 that branch draws, pipeline 32 is the precooling pipelines that are in low-temperature condition thereby this tank car 1 of formation maintenance is unloaded.
The described gas line network 6 of this liquefied natural gas gasifying supplier also will be provided with odorization machine structure 35 on pressure regulator 5 pipelines 34 before it.
Claims (10)
1. liquefied natural gas gasifying supplier, it is to be turned in the low-temperature pressure fluid reservoir by pipeline by liquefaction source of the gas tank car, gasifier connected again by this jar and pressure regulator finally inserts gas line network, it is characterized in that: after having this jar gravity flow ground connection air-heating type gasifier of booster, 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 fluid reservoir, adiabatic form of its jar or employing vacuum insulation fluid reservoir, or adopt primary-secondary type powder isolation fluid reservoir; Wherein heat-insulating 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 fluid reservoir, the outer liquid phase import and export pipe place of its jar is provided with quick action emergency valve.
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 part, and wherein the evaporation part is to connect all heat pipes in parallel by the end plate pipe to constitute, and the heating part is by union elbow series connection all-in-one-piece heat pipe; 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 gasifier is to be provided with fan and fan housing thereof in all heat pipes outside; The natural ventilation type gasifier is that the spacing between all heat pipes is controlled in the space of favourable 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 liquefied natural gas for to be provided with the heat conduction coil pipe in being connected to the hot water storgae of hot water in pipe, the capacity hot water supply is arranged outside the pipe; Be provided with quick action emergency valve in this pipe import department, temperature alarm and safety valve in this pipe exit 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 surge tank and connecting pipe thereof; On this surge tank pipeline, be provided with the pressure regulator 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 and also is connected to pipeline before the air-heating type gasifier on the pipeline of unloading on the low-temperature pressure fluid reservoir, 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 can be provided with the odorization machine structure on the pipeline of pressure regulator before it.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 01244008 CN2492766Y (en) | 2001-07-18 | 2001-07-18 | Liquefied natural gas gasifying and supplying plant |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 01244008 CN2492766Y (en) | 2001-07-18 | 2001-07-18 | Liquefied natural gas gasifying and supplying plant |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2492766Y true CN2492766Y (en) | 2002-05-22 |
Family
ID=33655512
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 01244008 Expired - Fee Related CN2492766Y (en) | 2001-07-18 | 2001-07-18 | Liquefied natural gas gasifying and supplying plant |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2492766Y (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101058401B (en) * | 2006-04-21 | 2012-01-11 | 中国国际海运集装箱(集团)股份有限公司 | LNG pressure regulating system and pressure regulating method thereof |
| CN102581277A (en) * | 2012-02-21 | 2012-07-18 | 江苏豪然喷射成形合金有限公司 | Atomized gas supply system for spray forming generation |
| CN108266642A (en) * | 2018-01-23 | 2018-07-10 | 深圳市燃气集团股份有限公司 | A kind of intermediate medium heat exchanger based on enhanced tube |
| CN111120861A (en) * | 2019-12-26 | 2020-05-08 | 荆门宏图特种飞行器制造有限公司 | Car as a house with air feeder |
-
2001
- 2001-07-18 CN CN 01244008 patent/CN2492766Y/en not_active Expired - Fee Related
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101058401B (en) * | 2006-04-21 | 2012-01-11 | 中国国际海运集装箱(集团)股份有限公司 | LNG pressure regulating system and pressure regulating method thereof |
| CN102581277A (en) * | 2012-02-21 | 2012-07-18 | 江苏豪然喷射成形合金有限公司 | Atomized gas supply system for spray forming generation |
| CN102581277B (en) * | 2012-02-21 | 2014-04-02 | 江苏豪然喷射成形合金有限公司 | Atomized gas supply system for spray forming generation |
| CN108266642A (en) * | 2018-01-23 | 2018-07-10 | 深圳市燃气集团股份有限公司 | A kind of intermediate medium heat exchanger based on enhanced tube |
| CN111120861A (en) * | 2019-12-26 | 2020-05-08 | 荆门宏图特种飞行器制造有限公司 | Car as a house with air feeder |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20020522 |