CN112393115A - LNG gasification device capable of improving gasification efficiency - Google Patents
LNG gasification device capable of improving gasification efficiency Download PDFInfo
- Publication number
- CN112393115A CN112393115A CN202011191955.1A CN202011191955A CN112393115A CN 112393115 A CN112393115 A CN 112393115A CN 202011191955 A CN202011191955 A CN 202011191955A CN 112393115 A CN112393115 A CN 112393115A
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- Prior art keywords
- gasification
- tank
- lng
- sealed
- pipe
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Classifications
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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
- F17C7/00—Methods or apparatus for discharging liquefied, solidified, or compressed gases from pressure vessels, not covered by another subclass
- F17C7/02—Discharging liquefied gases
- F17C7/04—Discharging liquefied gases with change of state, e.g. vaporisation
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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
- F17C2221/00—Handled fluid, in particular type of fluid
- F17C2221/03—Mixtures
- F17C2221/032—Hydrocarbons
- F17C2221/033—Methane, e.g. natural gas, CNG, LNG, GNL, GNC, PLNG
-
- 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
- F17C2223/00—Handled fluid before transfer, i.e. state of fluid when stored in the vessel or before transfer from the vessel
- F17C2223/01—Handled fluid before transfer, i.e. state of fluid when stored in the vessel or before transfer from the vessel characterised by the phase
- F17C2223/0146—Two-phase
- F17C2223/0153—Liquefied gas, e.g. LPG, GPL
- F17C2223/0161—Liquefied gas, e.g. LPG, GPL cryogenic, e.g. LNG, GNL, PLNG
-
- 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
- F17C2225/00—Handled fluid after transfer, i.e. state of fluid after transfer from the vessel
- F17C2225/01—Handled fluid after transfer, i.e. state of fluid after transfer from the vessel characterised by the phase
- F17C2225/0107—Single phase
- F17C2225/0123—Single phase gaseous, e.g. CNG, GNC
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Filling Or Discharging Of Gas Storage Vessels (AREA)
Abstract
The invention discloses an LNG gasification device for improving gasification efficiency, which comprises an LNG tank, wherein a condensing device is correspondingly arranged at the inlet end of the LNG tank, and the condensing device is provided with a corresponding heat recovery device; the outlet end of the LNG tank is connected with a gasification buffer tank; the gasification buffer tank is correspondingly arranged vertically, and the gasification buffer tank is correspondingly arranged into a square tank body structure. According to the invention, the liquid natural gas in the LNG tank does not directly enter the gasifier, when the LNG tank is used, hot water entering from the hot water pool flows through the circulating water pipe and then enters the sealed gasification chamber, the S-shaped gasification pipe is arranged in the sealed gasification chamber, the heating rod is correspondingly arranged, the natural gas can be completely gasified into gas after passing through the gasification pipe, and therefore, the natural gas is firstly heated and buffered by the buffer gasification tank, and is completely gasified after passing through the S-shaped gasification pipe, so that the gasification efficiency can be effectively improved.
Description
Technical Field
The invention relates to natural gas gasification facility equipment, in particular to an LNG gasification device for improving gasification efficiency.
Background
In the prior art, natural gas is stored in a liquefied state, the natural gas needs to be gasified and sent into a transportation pipeline when the natural gas is used, the natural gas generally needs a longer time when being gasified, the efficiency of the natural gas gasification is generally increased by arranging heating equipment of a heating device, and the liquefied natural gas is heated and naturally gasified and enters the transportation pipeline; in the conventional vaporizer, the liquid natural gas in the LNG tank is directly fed into the vaporizer to increase the vaporization efficiency, and the vaporization efficiency is reduced when the temperature is increased drastically.
Disclosure of Invention
The invention aims to provide an LNG gasification device for improving the gasification efficiency aiming at the defects in the prior art; the technical scheme is as follows:
an LNG gasification device for improving gasification efficiency comprises an LNG tank, wherein a condensing device is correspondingly arranged at the inlet end of the LNG tank, and the condensing device is provided with a corresponding heat recovery device; the outlet end of the LNG tank is connected with a gasification buffer tank; the gasification buffer tank is correspondingly arranged vertically and is correspondingly arranged into a square tank body structure; two sealing clapboards are respectively arranged on two sides of the gasification buffer tank, and a circulating water pipe is correspondingly arranged between the two sealing clapboards; the circulating water pipe is transversely arranged on the sealing partition plates at two sides layer by layer from bottom to top; and the circulating water pipes of each layer are uniformly arranged at intervals; two sides of the gasification buffer tank are also connected to a hot water pool through pipelines, and a circulating pump is correspondingly arranged; the heat recovery device correspondingly arranged on the condensing device is also connected to the hot water pool and can heat the hot water pool; the outlet of the gasification buffer tank is connected to a sealed gasification chamber; the sealed gasification chamber is internally provided with an S-shaped extending gasification pipe correspondingly, the inlet of the gasification pipe is connected with the outlet of the gasification buffer tank, and the outlet of the gasification pipe extends out of the sealed gasification chamber; the upper end and the lower end of the sealed gasification chamber are respectively provided with a heating rod; the heating rods are correspondingly inserted into the gaps of the S-shaped gasification pipes in the vertical direction; and a heat recovery device is also arranged in the sealed gasification chamber, is also connected with the hot water pool and can transfer the recovered heat to the hot water pool for heating hot water.
Preferably, the positions of the adjacent circulating water pipes of the upper layer and the lower layer in the gasification buffer tank are arranged in a staggered manner, and the circulating water pipe of the upper layer is positioned in the middle of the two adjacent circulating water pipes of the lower layer.
Preferably, at least ten circulating water pipes are correspondingly arranged on each layer in the gasification buffer tank.
Preferably, the outer surface of the LNG tank is also provided with a layer of heat insulation layer; and a heat insulation layer is also arranged on a communication pipeline between the LNG tank and the gasification buffer tank.
Preferably, a pressure relief device is further arranged in the sealed gasification chamber, and a fan mechanism is further arranged in the sealed gasification chamber; and the inner diameter of the pipeline of the gasification pipe in the sealed gasification chamber is correspondingly larger than the inner diameter of the external pipeline communicated with the gasification sealed chamber.
Has the advantages that: the invention has the following beneficial effects:
(1) in the invention, the liquid natural gas in the LNG gas tank does not directly enter a gasifier, but firstly enters a buffer gasification tank, the buffer gasification tank is internally provided with a left sealing baffle and a right sealing baffle, a circulating water pipe is arranged between the sealing baffles at the two sides, the two sides of the buffer gasification tank are correspondingly connected with a hot water pool and a circulating pump, when in use, the hot water entering from the hot water pool flows through the circulating water pipe, the natural gas in the LNG gas tank enters the buffer gasification pipe from bottom to top, is heated by transferring heat through the hot water and then enters the sealed gasification chamber, the sealed gasification chamber is internally provided with an S-shaped gasification pipe and is correspondingly provided with a heating rod, the natural gas can be completely gasified into gas after passing through the gasification pipe, thus the natural gas is heated and buffered by the buffer gasification tank, and is thoroughly gasified after passing through the S-shaped gasification pipe, the gasification efficiency can be effectively improved;
(2) according to the invention, the circulating water pipes in the buffer gasification tank are arranged in a vertically staggered manner, so that liquefied natural gas can be contacted with the circulating water pipes to the maximum extent, and the temperature rise of the natural gas is realized; in addition, the gasification pipe in the sealed gasification chamber arranged in the device is of an S-shaped structure, so that the stroke of the natural gas can be increased to the maximum extent, and the arranged heating rod is arranged at the position of a gap of the gasification pipe, so that the temperature of the gasification pipe can be increased at the first time, and the temperature increase efficiency of the natural gas is increased; the structure can effectively save the installation space of the heating rod, the heating rod is arranged in the gap of the gasification pipes at the upper and lower positions, the heating effect is obvious, and the gasification efficiency is obviously improved;
(3) in the invention, a heat source in the buffer gasification tank is provided by a hot water pool; the natural gas is required to be cooled when entering the stored LNG tank, so that a condensing device and a heat recovery device are arranged at an inlet of the LNG tank, and heat generated during condensation is recovered by the heat recovery device and sent into a hot water tank to heat hot water; the sealed gasification chamber is heated by the heating rod, so that the heat in the gasification chamber can be recovered and sent to the hot water pool for heating, and the heat energy can be greatly saved.
Drawings
FIG. 1 is a schematic structural view of the present invention;
FIG. 2 is a view showing the arrangement of circulating water pipes in the present invention.
Detailed Description
The present invention will be further illustrated with reference to the accompanying drawings and specific examples, which are carried out on the premise of the technical solution of the present invention, and it should be understood that these examples are only for illustrating the present invention and are not intended to limit the scope of the present invention.
As shown in fig. 1 and 2, an LNG vaporization apparatus for improving vaporization efficiency includes an LNG tank 1, a condensing device 2 is correspondingly disposed at an inlet end of the LNG tank 1, and the condensing device 2 is provided with a corresponding heat recovery device 3; the outlet end of the LNG tank 1 is connected with a gasification buffer tank 4; the gasification buffer tank 4 is correspondingly arranged vertically, and the gasification buffer tank 4 is correspondingly arranged in a square tank body structure; two sides of the gasification buffer tank 4 are respectively provided with a sealing clapboard 5, and a circulating water pipe 6 is correspondingly arranged between the sealing clapboards 5 at the two sides; the circulating water pipe 6 is transversely arranged on the sealing partition plates 5 at two sides layer by layer from bottom to top; and the circulating water pipes 6 of each layer are uniformly arranged at intervals; two sides of the gasification buffer tank 4 are also connected to a hot water pool 7 through pipelines, and a circulating pump 8 is correspondingly arranged; the heat recovery device 3 correspondingly arranged on the condensing device 2 is also connected to the hot water pool 7, and can heat the hot water pool 7; the outlet of the gasification buffer tank 4 is connected to a sealed gasification chamber 9; the sealed gasification chamber 9 is correspondingly provided with an S-shaped extending gasification pipe 10, the inlet of the gasification pipe 10 is connected with the outlet of the gasification buffer tank 4, and the outlet of the gasification pipe 10 extends out of the sealed gasification chamber 9; the upper end and the lower end of the sealed gasification chamber 9 are respectively provided with a heating rod 11; the heating rods 11 are correspondingly inserted into the gaps of the S-shaped gasification pipes 10 in the vertical direction; and a heat recovery device 3 is also arranged in the sealed gasification chamber 9, the heat recovery device 3 is also connected with the hot water pool 7, and the recovered heat can be transferred into the hot water pool 7 for heating hot water.
The positions of adjacent circulating water pipes 6 on the upper layer and the lower layer in the gasification buffer tank 4 are arranged in a staggered manner, and the circulating water pipe 6 on the upper layer is positioned in the middle position of two adjacent circulating water pipes 6 on the lower layer; at least ten circulating water pipes 6 are correspondingly arranged on each layer in the gasification buffer tank 4; the outer surface of the LNG tank 1 is also provided with a layer of heat insulation layer 12; and a heat insulation layer 12 is also arranged on a communication pipeline between the LNG tank 1 and the gasification buffer tank 4.
A pressure relief device is arranged in the sealed gasification chamber 9, and a fan mechanism is arranged in the sealed gasification chamber 9; and the inner diameter of the pipe of the gasification pipe 10 in the sealed gasification chamber 9 is correspondingly larger than the inner diameter of the pipe of the outside communicated with the gasification sealed chamber.
In the invention, the liquid natural gas in the LNG tank does not directly enter the gasifier, but enters the buffer gasifier firstly, the inside of the buffer gasification tank is provided with a left sealing clapboard and a right sealing clapboard, a circulating water pipe is arranged between the sealing clapboards at the two sides, the two sides of the buffer gasification tank are correspondingly connected with the hot water pool and the circulating pump, when in use, hot water entering from the hot water pool flows through the circulating water pipe, natural gas in the LNG gas tank enters the buffer gasification pipe from bottom to top, the heat is transferred by hot water to raise the temperature, and then the temperature is fed into a sealed gasification chamber, an S-shaped gasification pipe is arranged in the sealed gasification chamber, and the corresponding heating rod that is provided with, the natural gas can gasify into gas completely after the gasification pipe, sets up earlier through buffering gasification tank intensification buffering like this, and after the gasification pipe of S-shaped, thoroughly gasifies, can effectual promotion gasification efficiency.
According to the invention, the circulating water pipes in the buffer gasification tank are arranged in a vertically staggered manner, so that liquefied natural gas can be contacted with the circulating water pipes to the maximum extent, and the temperature rise of the natural gas is realized; in addition, the gasification pipe in the sealed gasification chamber arranged in the device is of an S-shaped structure, so that the stroke of the natural gas can be increased to the maximum extent, and the arranged heating rod is arranged at the position of a gap of the gasification pipe, so that the temperature of the gasification pipe can be increased at the first time, and the temperature increase efficiency of the natural gas is increased; and this kind of structure can effectually save the installation space of heating rod, and the heating rod sets up in the space of the gasification pipe of upper and lower position, and the intensification effect is obvious, is showing and is improving gasification efficiency.
In the invention, a heat source in the buffer gasification tank is provided by a hot water pool; the natural gas is required to be cooled when entering the stored LNG tank, so that a condensing device and a heat recovery device are arranged at an inlet of the LNG tank, and heat generated during condensation is recovered by the heat recovery device and sent into a hot water tank to heat hot water; the sealed gasification chamber is heated by the heating rod, so that the heat in the gasification chamber can be recovered and sent to the hot water pool for heating, and the heat energy can be greatly saved.
The above-mentioned embodiments are only preferred embodiments of the present invention, and are not intended to limit the scope of the invention and the appended claims, and all equivalent changes and modifications made within the spirit and scope of the invention as claimed should be included in the appended claims.
Claims (5)
1. The utility model provides a promote LNG gasification equipment of gasification efficiency which characterized in that: the LNG tank comprises an LNG tank (1), wherein a condensing device (2) is correspondingly arranged at the inlet end of the LNG tank (1), and the condensing device (2) is provided with a corresponding heat recovery device (3); the outlet end of the LNG tank (1) is connected with a gasification buffer tank (4); the gasification buffer tank (4) is correspondingly arranged vertically, and the gasification buffer tank (4) is correspondingly arranged into a square tank body structure; two sides of the gasification buffer tank (4) are respectively provided with a sealing clapboard (5), and a circulating water pipe (6) is correspondingly arranged between the sealing clapboards (5) at the two sides; the circulating water pipe (6) is transversely arranged layer by layer from bottom to top on the sealing partition plates (5) at two sides; and the circulating water pipes (6) of each layer are uniformly arranged at intervals; the two sides of the gasification buffer tank (4) are also connected to a hot water pool (7) through pipelines, and a circulating pump (8) is correspondingly arranged; the heat recovery device (3) correspondingly arranged on the condensing device (2) is also connected to the hot water pool (7) and can heat the hot water pool (7); the outlet of the gasification buffer tank (4) is connected to a sealed gasification chamber (9); the sealed gasification chamber (9) is internally provided with an S-shaped extending gasification pipe (10) correspondingly, the inlet of the gasification pipe (10) is connected with the outlet of the gasification buffer tank (4), and the outlet of the gasification pipe (10) extends out of the sealed gasification chamber (9); the upper end and the lower end of the sealed gasification chamber (9) are respectively provided with a heating rod (11); the heating rods (11) are correspondingly inserted into the gaps of the S-shaped gasification pipes (10) in the vertical direction; and a heat recovery device (3) is also arranged in the sealed gasification chamber (9), the heat recovery device (3) is also connected with the hot water pool (7), and the recovered heat can be transferred into the hot water pool (7) for heating hot water.
2. An LNG gasification apparatus for improving gasification efficiency according to claim 1, wherein: the position of the adjacent circulating water pipe (6) of upper and lower floor sets up to crisscross setting in gasification buffer tank (4), the circulating water pipe (6) of upper strata are located the intermediate position department of two circulating water pipe (6) of adjacent lower floor.
3. An LNG gasification apparatus for improving gasification efficiency according to claim 2, wherein: at least ten circulating water pipes (6) are correspondingly arranged on each layer in the gasification buffer tank (4).
4. An LNG gasification apparatus for improving gasification efficiency according to claim 1, wherein: the outer surface of the LNG tank (1) is also provided with a layer of heat insulation layer (12); and a heat insulation layer (12) is also arranged on a communication pipeline between the LNG tank (1) and the gasification buffer tank (4).
5. An LNG gasification apparatus for improving gasification efficiency according to claim 1, wherein: a pressure relief device is further arranged in the sealed gasification chamber (9), and a fan mechanism is further arranged in the sealed gasification chamber (9); and the inner diameter of the pipeline of the gasification pipe (10) in the sealed gasification chamber (9) is correspondingly larger than the inner diameter of the external pipeline communicated with the gasification sealed chamber.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011191955.1A CN112393115A (en) | 2020-10-30 | 2020-10-30 | LNG gasification device capable of improving gasification efficiency |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011191955.1A CN112393115A (en) | 2020-10-30 | 2020-10-30 | LNG gasification device capable of improving gasification efficiency |
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| Publication Number | Publication Date |
|---|---|
| CN112393115A true CN112393115A (en) | 2021-02-23 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202011191955.1A Pending CN112393115A (en) | 2020-10-30 | 2020-10-30 | LNG gasification device capable of improving gasification efficiency |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114458951A (en) * | 2022-04-14 | 2022-05-10 | 中国石油化工股份有限公司胜利油田分公司 | Air-temperature gasifier for injecting liquid carbon dioxide |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE19645488C1 (en) * | 1996-11-05 | 1998-06-10 | Messer Griesheim Gmbh | Delivery system for gases e.g. hydrogen, nitrogen or natural gas from liquid phase in cryogenic tank |
| CN105156881A (en) * | 2015-08-19 | 2015-12-16 | 湖北三江航天江北机械工程有限公司 | Intelligent supercharging device and method for low-temperature thermal insulation container |
| CN205037067U (en) * | 2015-09-26 | 2016-02-17 | 湖北中原磷化有限公司 | Liquid ammonia gasification equipment for ammonium phosphate production |
| CN207094176U (en) * | 2017-08-29 | 2018-03-13 | 侨源气体（福州）有限公司 | A kind of air-bathing gasifier enhancing device |
| CN108644608A (en) * | 2018-07-18 | 2018-10-12 | 武海涛 | Liquefied petroleum gas energy conservation equipment |
| CN208587732U (en) * | 2018-05-17 | 2019-03-08 | 常州市潞城燃气设备有限公司 | A kind of LNG gasification device |
-
2020
- 2020-10-30 CN CN202011191955.1A patent/CN112393115A/en active Pending
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE19645488C1 (en) * | 1996-11-05 | 1998-06-10 | Messer Griesheim Gmbh | Delivery system for gases e.g. hydrogen, nitrogen or natural gas from liquid phase in cryogenic tank |
| CN105156881A (en) * | 2015-08-19 | 2015-12-16 | 湖北三江航天江北机械工程有限公司 | Intelligent supercharging device and method for low-temperature thermal insulation container |
| CN205037067U (en) * | 2015-09-26 | 2016-02-17 | 湖北中原磷化有限公司 | Liquid ammonia gasification equipment for ammonium phosphate production |
| CN207094176U (en) * | 2017-08-29 | 2018-03-13 | 侨源气体（福州）有限公司 | A kind of air-bathing gasifier enhancing device |
| CN208587732U (en) * | 2018-05-17 | 2019-03-08 | 常州市潞城燃气设备有限公司 | A kind of LNG gasification device |
| CN108644608A (en) * | 2018-07-18 | 2018-10-12 | 武海涛 | Liquefied petroleum gas energy conservation equipment |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114458951A (en) * | 2022-04-14 | 2022-05-10 | 中国石油化工股份有限公司胜利油田分公司 | Air-temperature gasifier for injecting liquid carbon dioxide |
| CN114458951B (en) * | 2022-04-14 | 2022-06-21 | 中国石油化工股份有限公司胜利油田分公司 | Air-temperature gasifier for injecting liquid carbon dioxide |
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Application publication date: 20210223 |