CN112856884B - Method for storing cold energy of liquefied natural gas, ice making method and device thereof - Google Patents
Method for storing cold energy of liquefied natural gas, ice making method and device thereof Download PDFInfo
- Publication number
- CN112856884B CN112856884B CN202110223635.8A CN202110223635A CN112856884B CN 112856884 B CN112856884 B CN 112856884B CN 202110223635 A CN202110223635 A CN 202110223635A CN 112856884 B CN112856884 B CN 112856884B
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- refrigerant
- natural gas
- heat exchange
- cold
- cooled
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- 239000003949 liquefied natural gas Substances 0.000 title claims abstract description 69
- 238000000034 method Methods 0.000 title claims abstract description 32
- LYCAIKOWRPUZTN-UHFFFAOYSA-N Ethylene glycol Chemical compound OCCO LYCAIKOWRPUZTN-UHFFFAOYSA-N 0.000 claims abstract description 96
- 239000003507 refrigerant Substances 0.000 claims abstract description 73
- 239000007788 liquid Substances 0.000 claims abstract description 35
- WGCNASOHLSPBMP-UHFFFAOYSA-N hydroxyacetaldehyde Natural products OCC=O WGCNASOHLSPBMP-UHFFFAOYSA-N 0.000 claims abstract description 30
- 238000010438 heat treatment Methods 0.000 claims abstract description 25
- 239000007789 gas Substances 0.000 claims abstract description 13
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 5
- 230000000694 effects Effects 0.000 claims abstract description 4
- 239000000243 solution Substances 0.000 claims description 37
- ATUOYWHBWRKTHZ-UHFFFAOYSA-N Propane Chemical compound CCC ATUOYWHBWRKTHZ-UHFFFAOYSA-N 0.000 claims description 34
- VNWKTOKETHGBQD-UHFFFAOYSA-N methane Chemical compound C VNWKTOKETHGBQD-UHFFFAOYSA-N 0.000 claims description 30
- 239000001294 propane Substances 0.000 claims description 17
- 239000003345 natural gas Substances 0.000 claims description 15
- 239000007864 aqueous solution Substances 0.000 claims description 2
- 230000008016 vaporization Effects 0.000 abstract description 4
- 238000009834 vaporization Methods 0.000 abstract description 4
- 230000002708 enhancing effect Effects 0.000 abstract description 3
- 230000008569 process Effects 0.000 description 4
- 238000004519 manufacturing process Methods 0.000 description 3
- 230000009286 beneficial effect Effects 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000003139 buffering effect Effects 0.000 description 1
- 230000008859 change Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000006872 improvement Effects 0.000 description 1
- 238000004064 recycling Methods 0.000 description 1
- 239000013535 sea water Substances 0.000 description 1
Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F25—REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
- F25D—REFRIGERATORS; COLD ROOMS; ICE-BOXES; COOLING OR FREEZING APPARATUS NOT OTHERWISE PROVIDED FOR
- F25D3/00—Devices using other cold materials; Devices using cold-storage bodies
- F25D3/10—Devices using other cold materials; Devices using cold-storage bodies using liquefied gases, e.g. liquid air
-
- 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
- F17C9/02—Methods or apparatus for discharging liquefied or solidified gases from vessels not under pressure with change of state, e.g. vaporisation
- F17C9/04—Recovery of thermal energy
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F25—REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
- F25C—PRODUCING, WORKING OR HANDLING ICE
- F25C1/00—Producing ice
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F25—REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
- F25D—REFRIGERATORS; COLD ROOMS; ICE-BOXES; COOLING OR FREEZING APPARATUS NOT OTHERWISE PROVIDED FOR
- F25D3/00—Devices using other cold materials; Devices using cold-storage bodies
- F25D3/005—Devices using other cold materials; Devices using cold-storage bodies combined with heat exchangers
-
- 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
-
- 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
- F17C2250/00—Accessories; Control means; Indicating, measuring or monitoring of parameters
- F17C2250/04—Indicating or measuring of parameters as input values
- F17C2250/0404—Parameters indicated or measured
- F17C2250/0439—Temperature
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
- Y02P60/00—Technologies relating to agriculture, livestock or agroalimentary industries
- Y02P60/80—Food processing, e.g. use of renewable energies or variable speed drives in handling, conveying or stacking
- Y02P60/85—Food storage or conservation, e.g. cooling or drying
Abstract
The application discloses a method for storing liquefied natural gas cold energy, which comprises the following steps: carrying out primary heat exchange and heating on the liquefied natural gas through a first refrigerant; performing secondary heat exchange and heating on the low-temperature liquefied gas through a second refrigerant; the first cooled refrigerant and the second cooled refrigerant are subjected to heat exchange and temperature rise through glycol solution; carrying out primary heat exchange heating and secondary heat exchange heating on the liquefied natural gas; and conveying the cooled glycol solution to a cold-carrying liquid pool for storage. Compared with the prior art, the method solves the problem of low utilization rate of liquefied natural gas vaporization cold energy through multistage heat exchange between the cold media. The method adopts two intermediate media on the basis of the common liquefied natural gas cold energy ice making technology, thereby enhancing the heat exchange effect and improving the heat exchange efficiency. And 50% glycol water solution is used as a cold carrier liquid to integrate cold energy in the two intermediate media for subsequent use.
Description
Technical Field
The invention belongs to the field of energy recycling, and particularly relates to a method for storing liquefied natural gas cold energy, an ice making method and a device thereof.
Background
The lng needs to be vaporized and warmed in advance before entering the customer network, and the vaporization process of the lng releases a large amount of cold energy, which is usually lost in seawater or air because of its inability to store.
Disclosure of Invention
The primary object of the present application is to provide a method of storing lng cold energy, comprising:
s101: carrying out primary heat exchange and heating on the liquefied natural gas through the first refrigerant to obtain low-temperature liquefied gas and a cooled first refrigerant;
s102: performing secondary heat exchange and heating on the low-temperature liquefied gas through a second refrigerant to obtain high-temperature natural gas and a cooled second refrigerant;
s103: carrying out heat exchange and heating on the cooled first refrigerant and the cooled second refrigerant through glycol solution to obtain the heated first refrigerant, the heated second refrigerant and the cooled glycol solution;
s104: conveying the heated first refrigerant and the heated second refrigerant to the liquefied natural gas heat exchanger to perform primary heat exchange heating and secondary heat exchange heating on the liquefied natural gas;
s105: and conveying the cooled glycol solution to a cold-carrying liquid pool for storage.
Optionally, the method for storing lng cold energy further comprises:
s106: and conveying the high-temperature natural gas to a downstream natural gas network management.
Optionally, the method for storing lng cold energy further comprises:
and carrying out secondary heat exchange and heating on the residual liquefied natural gas after the primary heat exchange and heating by the second refrigerant.
Optionally, the method for storing lng cold energy further comprises:
s107: and returning the liquefied natural gas which is not heated after the temperature is raised through the secondary heat exchange through a return pipe, and repeating S101-S102.
Optionally, the first refrigerant is propane.
Optionally, the second refrigerant is 404a refrigerant.
Optionally, the ethylene glycol solution is an ethylene glycol solution with a concentration of 50%.
According to another object of the following application, there is also provided a method of making ice, a method of storing lng cold energy using any of the above, further comprising:
and (3) making ice by using the cold energy of the cold-carrying liquid in the cold-carrying liquid pool through the ice maker.
According to another object of the following application, there is also provided an apparatus for storing lng cold energy, a method of storing lng cold energy using any of the above, comprising:
the liquefied natural gas heat exchanger is used for carrying out primary heat exchange and temperature rise on the liquefied natural gas by the first refrigerant to obtain low-temperature liquefied gas and cooled first refrigerant, and carrying out secondary heat exchange and temperature rise on the low-temperature liquefied gas by the second refrigerant to obtain high-temperature natural gas and cooled second refrigerant;
the propane heat exchanger is used for carrying out heat exchange and temperature rise on the cooled first refrigerant by the glycol solution to obtain the warmed first refrigerant and the cooled glycol solution;
404a heat exchanger, configured to perform heat exchange and temperature increase on the cooled second refrigerant by using the ethylene glycol solution, to obtain the warmed second refrigerant and the cooled ethylene glycol solution;
and the cold-carrying liquid pool is used for storing the cooled glycol solution.
According to another object of the following application, there is also provided an ice making apparatus using the above-mentioned apparatus for storing lng cold energy, further comprising:
and the ice maker uses the cold energy of the cold-carrying liquid in the cold-carrying liquid tank to make ice.
Compared with the prior art, the application has the following beneficial effects:
the utility model solves the problem of low utilization rate of liquefied natural gas vaporization cold energy through multistage heat exchange between the cold media. The method adopts two intermediate media on the basis of the common liquefied natural gas cold energy ice making technology, thereby enhancing the heat exchange effect and improving the heat exchange efficiency. And 50% glycol water solution is used as a cold carrier liquid to integrate cold energy in the two intermediate media for subsequent use.
Drawings
The accompanying drawings, which are incorporated in and constitute a part of this application, are included to provide a further understanding of the application and to provide a further understanding of the application with regard to the further features, objects and advantages of the application. The drawings of the illustrative embodiments of the present application and their descriptions are for the purpose of illustrating the present application and are not to be construed as unduly limiting the present application. In the drawings:
FIG. 1 is a flow diagram of a method of making ice according to one embodiment of the present application;
fig. 2 is an apparatus schematic view of an ice making apparatus according to an embodiment of the present application.
Detailed Description
In order to make the present application solution better understood by those skilled in the art, the following description will be made in detail and with reference to the accompanying drawings in the embodiments of the present application, it is apparent that the described embodiments are only some embodiments of the present application, not all embodiments. All other embodiments, which can be made by one of ordinary skill in the art based on the embodiments herein without making any inventive effort, shall fall within the scope of the present application.
It should be noted that the terms "first," "second," and the like in the description and claims of the present application and the above figures are used for distinguishing between similar objects and not necessarily for describing a particular sequential or chronological order. It is to be understood that the data so used may be interchanged where appropriate in order to describe the embodiments of the present application described herein. Furthermore, the terms "comprises," "comprising," and "having," and any variations thereof, are intended to cover a non-exclusive inclusion, such that a process, method, system, article, or apparatus that comprises a list of steps or elements is not necessarily limited to those steps or elements expressly listed but may include other steps or elements not expressly listed or inherent to such process, method, article, or apparatus.
Referring to fig. 1-2, an embodiment of the present application provides a method for storing lng cold energy, comprising:
s101: carrying out primary heat exchange and heating on the liquefied natural gas through the first refrigerant to obtain low-temperature liquefied gas and a cooled first refrigerant;
s102: performing secondary heat exchange and heating on the low-temperature liquefied gas through a second refrigerant to obtain high-temperature natural gas and a cooled second refrigerant;
s103: carrying out heat exchange and heating on the cooled first refrigerant and the cooled second refrigerant through glycol solution to obtain the heated first refrigerant, the heated second refrigerant and the cooled glycol solution;
s104: conveying the heated first refrigerant and the heated second refrigerant to the liquefied natural gas heat exchanger to perform primary heat exchange heating and secondary heat exchange heating on the liquefied natural gas;
s105: and conveying the cooled glycol solution to a cold-carrying liquid pool for storage.
In an embodiment of the present application, the method for storing lng cold energy further includes:
s106: and conveying the high-temperature natural gas to a downstream natural gas network management.
In an embodiment of the present application, the method for storing lng cold energy further includes:
and carrying out secondary heat exchange and heating on the residual liquefied natural gas after the primary heat exchange and heating by the second refrigerant.
In an embodiment of the present application, the method for storing lng cold energy further includes:
s107: and returning the liquefied natural gas which is not heated after the temperature is raised through the secondary heat exchange through a return pipe, and repeating S101-S102.
In an embodiment of the present application, the first refrigerant is propane.
In an embodiment of the present application, the second refrigerant is 404a refrigerant.
In one embodiment of the present application, the ethylene glycol solution is a 50% ethylene glycol solution.
Embodiments of the present application also provide a method of making ice using the method of storing lng cold energy as claimed in any one of claims 1 to 7, further comprising:
and (3) making ice by using the cold energy of the cold-carrying liquid in the cold-carrying liquid pool through the ice maker.
The embodiment of the application also provides a device for storing liquefied natural gas cold energy, and a method for storing the natural gas cold energy by using any one of the above methods, comprising the following steps:
the liquefied natural gas heat exchanger is used for carrying out primary heat exchange and temperature rise on the liquefied natural gas by the first refrigerant to obtain low-temperature liquefied gas and cooled first refrigerant, and carrying out secondary heat exchange and temperature rise on the low-temperature liquefied gas by the second refrigerant to obtain high-temperature natural gas and cooled second refrigerant;
the propane heat exchanger is used for carrying out heat exchange and temperature rise on the cooled first refrigerant by the glycol solution to obtain the warmed first refrigerant and the cooled glycol solution;
404a heat exchanger, configured to perform heat exchange and temperature increase on the cooled second refrigerant by using the ethylene glycol solution, to obtain the warmed second refrigerant and the cooled ethylene glycol solution;
and the cold-carrying liquid pool is used for storing the cooled glycol solution.
The embodiment of the application also provides an ice making device, which uses the device for storing the liquefied natural gas cold energy and further comprises:
and the ice maker uses the cold energy of the cold-carrying liquid in the cold-carrying liquid tank to make ice.
In the application, the liquefied natural gas is subjected to two continuous heat exchanges in the primary heat exchanger, and the liquefied natural gas is subjected to two-stage heat exchanges with propane and 404a respectively; the cold carrier liquid utilizes cold energy in propane and 404a in a three-stage heat exchanger; and the cold-carrying liquid enters a cold-carrying liquid pool for storage.
The first-stage heat exchanger is used for continuously carrying out second heat exchange on the low-temperature liquefied natural gas and the propane through the pipeline after the liquefied natural gas and the propane are subjected to heat exchange in the heat exchanger. The three-stage heat exchanger uses the cold energy carried by propane and 404a for carrying cold liquid glycol aqueous solution. The cold-carrying liquid pool has obvious buffering capacity for storing cold energy.
The temperature of the liquefied natural gas flowing out of the liquefied natural gas storage tank is-170 to-150 ℃, then the liquefied natural gas enters a liquefied natural gas heat exchanger to exchange heat with refrigerant propane, phase change occurs to generate low-temperature natural gas, and the temperature is raised to
A small amount of non-phase-change liquefied natural gas and low-temperature NG continuously exchange heat with the refrigerant 404A in a 404A heat exchanger at the temperature of-40 to-50 ℃, and then the natural gas temperature is increased to about 5 ℃ and enters a downstream user pipe network. In the process, a very small amount of unvaporized liquefied natural gas is returned to the heat exchanger for circulation again through the liquefied natural gas return pipe.
Gaseous propane at the temperature of between 15 ℃ below zero and 25 ℃ below zero exchanges heat with liquefied natural gas in a liquefied natural gas heat exchanger, is subjected to cold liquefaction, and forms a loop in the propane heat exchanger and the liquefied natural gas heat exchanger through a booster pump after being cooled to the temperature of between 40 ℃ below zero, wherein liquid propane exchanges heat with 50% glycol solution in the propane heat exchanger. Similarly, the gaseous refrigerant 404a with the temperature of about 5 ℃ is firstly absorbed by the liquefied natural gas heat exchanger, cooled to-40 ℃, enters the 404a heat exchanger through a booster pump to exchange heat with 50% glycol solution, and the temperature is raised to-10-0 ℃ to continue circulation.
After the 50% glycol solution acquires cold energy in the two heat exchangers, the cold energy flows into a cold-carrying liquid pool and then passes through a glycol storage tank to form circulation by a circulating pump. The cold-carrying liquid pool is combined with the ice maker and the water pump according to the quantity to make ice.
Compared with the prior art, the application has the following beneficial effects:
the utility model solves the problem of low utilization rate of liquefied natural gas vaporization cold energy through multistage heat exchange between the cold media. The method adopts two intermediate media on the basis of the common liquefied natural gas cold energy ice making technology, thereby enhancing the heat exchange effect and improving the heat exchange efficiency. And 50% glycol water solution is used as a cold carrier liquid to integrate cold energy in the two intermediate media for subsequent use.
It will be apparent to those skilled in the art that the modules or steps of the application described above may be implemented in a general purpose computing device, they may be centralized on a single computing device, or distributed across a network of computing devices, or they may alternatively be implemented in program code executable by computing devices, such that they may be stored in a memory device and executed by computing devices, or individually fabricated as individual integrated circuit modules, or multiple modules or steps within them may be fabricated as a single integrated circuit module. Thus, the present application is not limited to any specific combination of hardware and software.
The foregoing description is only of the preferred embodiments of the present application and is not intended to limit the same, but rather, various modifications and variations may be made by those skilled in the art. Any modification, equivalent replacement, improvement, etc. made within the spirit and principles of the present application should be included in the protection scope of the present application.
Claims (1)
1. An ice making method is characterized in that the following ice making device is adopted,
the ice making device includes: the liquefied natural gas heat exchanger is used for carrying out primary heat exchange and temperature rise on the liquefied natural gas by the first refrigerant to obtain low-temperature liquefied gas and cooled first refrigerant, and carrying out secondary heat exchange and temperature rise on the low-temperature liquefied gas by the second refrigerant to obtain high-temperature natural gas and cooled second refrigerant; the propane heat exchanger is connected with the liquefied natural gas heat exchanger and is used for carrying out heat exchange and temperature rise on the cooled first refrigerant by the glycol solution to obtain the warmed first refrigerant and the cooled glycol solution; 404a of heat exchangers connected with the liquefied natural gas heat exchanger and used for carrying out heat exchange and temperature rise on the cooled second refrigerant by the glycol solution to obtain the warmed second refrigerant and the cooled glycol solution; the cold-carrying liquid pool is connected with the propane heat exchanger and the 404a heat exchanger and is used for storing the cooled glycol solution, and the ice maker is connected with the cold-carrying liquid pool and uses the cold energy of the cold-carrying liquid in the cold-carrying liquid pool for ice making;
the ice making method comprises the following steps:
s101: carrying out primary heat exchange and heating on liquefied natural gas through a first refrigerant to obtain low-temperature liquefied gas and a cooled first refrigerant, wherein the first refrigerant is propane;
s102: performing secondary heat exchange and heating on the low-temperature liquefied gas through a second refrigerant to obtain high-temperature natural gas and a cooled second refrigerant, wherein the second refrigerant is 404a refrigerant;
s103: carrying out heat exchange and heating on the cooled first refrigerant and the cooled second refrigerant through an ethylene glycol solution to obtain the heated first refrigerant, the heated second refrigerant and the cooled ethylene glycol solution, wherein the ethylene glycol solution is 50% ethylene glycol solution;
s104: conveying the heated first refrigerant and the heated second refrigerant to the liquefied natural gas heat exchanger to perform primary heat exchange heating and secondary heat exchange heating on the liquefied natural gas;
s105: conveying the cooled glycol solution to a cold-carrying liquid pool for storage;
s106: delivering the high temperature natural gas to a downstream natural gas network management;
carrying out secondary heat exchange and heating on the residual liquefied natural gas after primary heat exchange and heating through the second refrigerant;
s107: returning the liquefied natural gas which is not heated after the temperature is raised through the secondary heat exchange through a return pipe, and repeating S101-S102;
the cooled glycol solution in the step S105 is stored in a cold-carrying liquid pool, and then ice is made by using cold energy of the cold-carrying liquid in the cold-carrying liquid pool through an ice making machine, wherein the cold-carrying liquid pool is combined with the ice making machine and a water pump according to the amount, the liquefied natural gas is made into ice after three-stage heat exchange, two intermediate media are adopted, the heat exchange effect is enhanced, the cold energy in the two intermediate media is integrated by using 50% glycol aqueous solution as the cold-carrying liquid, and the cold-carrying liquid pool is used for storing the obvious buffer capacity of the cold energy, so that the direct heat exchange ice making of the liquefied natural gas is avoided.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110223635.8A CN112856884B (en) | 2021-03-01 | 2021-03-01 | Method for storing cold energy of liquefied natural gas, ice making method and device thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110223635.8A CN112856884B (en) | 2021-03-01 | 2021-03-01 | Method for storing cold energy of liquefied natural gas, ice making method and device thereof |
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| CN112856884A CN112856884A (en) | 2021-05-28 |
| CN112856884B true CN112856884B (en) | 2024-04-12 |
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Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103712366A (en) * | 2013-12-14 | 2014-04-09 | 华中科技大学 | System for utilizing cold energy of low-temperature fluid |
| CN204678936U (en) * | 2015-05-08 | 2015-09-30 | 广东九丰燃气科技股份有限公司 | Cold energy of liquefied natural gas utilizes equipment |
| KR20150124532A (en) * | 2014-04-28 | 2015-11-06 | 동의대학교 산학협력단 | Liquefied Natural Gas gasification facility using multi-heatexchanger |
| CN105222446A (en) * | 2015-10-10 | 2016-01-06 | 华电电力科学研究院 | The LNG cold energy that utilizes of two-stage heat exchange is adopted to prepare the apparatus and method of common ice and Ozone Ice |
| CN214701383U (en) * | 2021-03-01 | 2021-11-12 | 广东广大新能源科技有限公司 | Device for storing liquefied natural gas cold energy and ice making device |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| BR112015002174A2 (en) * | 2012-09-07 | 2017-07-04 | Keppel Offshore & Marine Tech Ct Pte Ltd | system and method for liquefying natural gas |
-
2021
- 2021-03-01 CN CN202110223635.8A patent/CN112856884B/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103712366A (en) * | 2013-12-14 | 2014-04-09 | 华中科技大学 | System for utilizing cold energy of low-temperature fluid |
| KR20150124532A (en) * | 2014-04-28 | 2015-11-06 | 동의대학교 산학협력단 | Liquefied Natural Gas gasification facility using multi-heatexchanger |
| CN204678936U (en) * | 2015-05-08 | 2015-09-30 | 广东九丰燃气科技股份有限公司 | Cold energy of liquefied natural gas utilizes equipment |
| CN105222446A (en) * | 2015-10-10 | 2016-01-06 | 华电电力科学研究院 | The LNG cold energy that utilizes of two-stage heat exchange is adopted to prepare the apparatus and method of common ice and Ozone Ice |
| CN214701383U (en) * | 2021-03-01 | 2021-11-12 | 广东广大新能源科技有限公司 | Device for storing liquefied natural gas cold energy and ice making device |
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| CN112856884A (en) | 2021-05-28 |
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