CN2758674Y - Refrigerating device for recovering liquefied natural gas cold energy for cold storage - Google Patents
Refrigerating device for recovering liquefied natural gas cold energy for cold storage Download PDFInfo
- Publication number
- CN2758674Y CN2758674Y CN 200420114636 CN200420114636U CN2758674Y CN 2758674 Y CN2758674 Y CN 2758674Y CN 200420114636 CN200420114636 CN 200420114636 CN 200420114636 U CN200420114636 U CN 200420114636U CN 2758674 Y CN2758674 Y CN 2758674Y
- Authority
- CN
- China
- Prior art keywords
- heat exchanger
- natural gas
- liquefied natural
- evaporimeter
- cold
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Fee Related
Links
Landscapes
- Filling Or Discharging Of Gas Storage Vessels (AREA)
Abstract
The utility model relates to a refrigerating device for recovering liquefied natural gas cold energy for a cold storage, which belongs to the technical field of energy conservation and refrigerating engineering. The refrigerating device comprises a storage tank, a liquefied natural gas pump, a refrigerant pump, a heat exchanger, a heater, an evaporator and a fan, wherein a liquefied natural gas storage tank is connected with a tube pass inlet of the heat exchanger through the liquefied natural gas pump, and a tube pass outlet of the heat exchanger is connected with a user tube network through a gas heater; a shell pass outlet of the heat exchanger is connected with an outlet of the evaporator arranged in the cold storage through the refrigerant pump, and the outlet of the evaporator is connected with a shell pass inlet of the heat exchanger; an axial flow fan is arranged beside the evaporator, and R410A refrigerant is inserted into the shell passes of the evaporator and the heat exchanger. The utility model makes full use of liquefied natural gas cold energy and has a simplified cold storage refrigerating process, so a lot of initial investment and operating cost of the cold storage are saved.
Description
Technical field
The utility model relates to a kind of refrigerating plant, especially a kind ofly reclaims the refrigerating plant that cold energy of liquefied natural gas is used for freezer, belongs to energy-conservation and Refrigeration Engineering technical field.
Background technology
Liquefied natural gas is a natural gas through depickling, processed ,-162 ℃ the liquid mixture that forms by the low temperature process cryogenic liquefaction.The power and the public utility power consumption of one ton of liquefied natural gas of every production are about 850kWh, and in liquefied natural gas receiving station, generally need again liquefied natural gas is used by vaporizer vaporization back, emit very big heat during vaporization, and its value is approximately 830kJ/kg.This a part of cold energy has been rejected with seawater or air in natural gas vaporizer usually, has caused the waste of the energy.Utilize cold energy of liquefied natural gas by specific technology, can reach the purpose of saving the energy, increasing economic efficiency.
In the prior art, the patent of invention of " during liquefied natural gas vaporization cold utilize method " that application number is 00128935.7, adopt recirculated water to reach the purpose of air-conditioning temperature-reducing as refrigerant, but because the freezing point of water is 0 ℃, very easily cause moisture freezes to cause the obstruction of flowing when liquefied natural gas and water direct heat-exchange, big in addition temperature difference heat exchange also can cause very big irreversible loss; Application number is the patent of invention of 03114438.1 " utilizing the motorcar air conditioner of cold energy of liquefied natural gas ", having designed an ethylene glycol solution does the cold energy of refrigerant and reclaims cold accumulation system, but the ethylene glycol freezing point temperature still is higher, still has refrigerant to freeze to cause the not smooth danger of flowing.
The utility model content
For deficiency and the defective that overcomes prior art, the utility model provides a kind of refrigerating plant that cold energy of liquefied natural gas is used for freezer that reclaims, and this device comprises storage tank, liquefied natural gas pump, refrigerated medium pump, heat exchanger, heater, evaporimeter and blower fan.LNG tank is connected with the tube side import of heat exchanger by liquefied natural gas pump, and the outlet of heat exchanger tube side links to each other with user's pipe network through gas heater heating back; The outlet of the shell side of heat exchanger is connected with evaporator in the freezer storehouse by refrigerated medium pump, and evaporator outlet links to each other with the shell side import of heat exchanger; Axial flow blower is installed in by the evaporimeter; In the shell side of evaporimeter and heat exchanger, the near azeotropic mixed refrigerant R410A that is filled with suitable superfreeze is as cycle fluid.
-162 ℃ liquefied natural gas is input to heat exchanger by liquefied natural gas pump in the storage tank, liquefied natural gas carries out heat exchange in heat exchanger with from the pact-52 ℃ gaseous state near azeotropic mixed refrigerant R410A of freezer evaporimeter, send into heater heating then, import the user after returning to normal temperature; The liquid R410A cold-producing medium of absorption liquefied natural gas vaporization latent heat and part sensible heat enters the freezer evaporimeter and the interior air of storehouse carries out heat exchange; By cold-producing medium circulating between heat exchanger and evaporimeter, can in liquefied natural gas vaporization, realize the purpose of freezer superfreeze food.Because the liquefied natural gas base generally all is located near the harbour, makes things convenient for shipping first, second common vaporization all is to realize by the heat exchange with seawater.And large-scale aquatic products freezer substantially also is located near the harbour, makes things convenient for the freezing processing of the fish that the ocean catches like this.The cold energy supply freezer that reclaims liquefied natural gas is a kind of extraordinary cold energy use mode.
The utility model refrigerating plant has made full use of cold energy of liquefied natural gas, has saved the energy, has improved economic benefit, and greatly simplified the freezer refrigerating flow process, has saved a large amount of initial cost and the operating costs of freezer.In addition, adopt R410A as cold-producing medium, its heat transfer property is good; Do not destroy atmospheric ozone layer, environmentally friendly, have remarkable economic efficiency and social benefit.
Description of drawings
Fig. 1 is the structure principle chart of the utility model refrigerating plant.
The specific embodiment
Below in conjunction with accompanying drawing concrete enforcement of the present utility model is further described.
As shown in Figure 1, the utility model refrigerating plant comprises: LNG tank 1, liquefied natural gas pump 2, heat exchanger 3, gas heater 4, refrigerated medium pump 5, evaporimeter 6, axial flow blower 7.Wherein heat exchanger 3 adopts horizontal shell and tube type, and evaporimeter 6 adopts finned.
LNG tank 1 is connected with the tube side import of heat exchanger 3 by liquefied natural gas pump 2, and the tube side outlet of heat exchanger 3 links to each other with user's pipe network through gas heater 4; The shell side outlet of heat exchanger 3 is connected by interior evaporimeter 6 imports of refrigerated medium pump 5 and freezer storehouse, and evaporimeter 6 outlets link to each other with the shell side import of heat exchanger 3; It is other that axial flow blower 7 is installed in evaporimeter 6; In the shell side of evaporimeter 6 and heat exchanger 3, be filled with the R410A cold-producing medium.
-162 ℃ liquefied natural gas enters the tube side of heat exchanger 3 in the LNG tank 1 through liquefied natural gas pump 2, carry out heat exchange with the R410A refrigerant vapour adverse current that enters heat exchanger 3 shell sides from storehouse evaporimeter 6, liquefied natural gas vaporization behind the absorption heat becomes natural gas, imports the user after gas heater 4 heating return to normal temperature; Simultaneously, exothermic R410A refrigerant vapour is condensed into liquid refrigerant, in refrigerated medium pump 5 is sent into the evaporimeter 6 of storehouse, cold-producing medium evaporates in evaporimeter 6, carry out heat exchange by the air that circulates in axial flow blower 7 and the storehouse, absorb the heat of air in the storehouse, the temperature of freezer storehouse is reduced to about-45 ℃, reach the purpose of super low temperature refrigeration.
Claims (2)
1, a kind ofly reclaim the refrigerating plant that cold energy of liquefied natural gas is used for freezer, comprise LNG tank (1), liquefied natural gas pump (2), heat exchanger (3), gas heater (4), refrigerated medium pump (5), evaporimeter (6), axial flow blower (7), it is characterized in that LNG tank (1) is connected with the tube side import of heat exchanger (3) by liquefied natural gas pump (2), the tube side outlet of heat exchanger (3) links to each other with user's pipe network through gas heater (4), the shell side outlet of heat exchanger (3) is connected by interior evaporimeter (6) import of refrigerated medium pump (5) and freezer storehouse, and evaporimeter (6) outlet links to each other with the shell side import of heat exchanger (3), and it is other that axial flow blower (7) is installed in evaporimeter (6), in the shell side of evaporimeter (6) and heat exchanger (3), be filled with the R410A cold-producing medium.
2, recovery cold energy of liquefied natural gas according to claim 1 is used for the refrigerating plant of freezer, it is characterized in that described heat exchanger (3) is to adopt the horizontal shell and tube type heat exchanger, and evaporimeter (6) adopts finned heat exchanger.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200420114636 CN2758674Y (en) | 2004-12-23 | 2004-12-23 | Refrigerating device for recovering liquefied natural gas cold energy for cold storage |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200420114636 CN2758674Y (en) | 2004-12-23 | 2004-12-23 | Refrigerating device for recovering liquefied natural gas cold energy for cold storage |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2758674Y true CN2758674Y (en) | 2006-02-15 |
Family
ID=36078814
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 200420114636 Expired - Fee Related CN2758674Y (en) | 2004-12-23 | 2004-12-23 | Refrigerating device for recovering liquefied natural gas cold energy for cold storage |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2758674Y (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN100424450C (en) * | 2006-11-21 | 2008-10-08 | 华南理工大学 | Method for using cooling capacity of LNG with cooling media as medium and apparatus thereof |
| CN102563777A (en) * | 2010-12-31 | 2012-07-11 | 中国石油天然气集团公司 | System for collecting cold energy of liquefied natural gas in drilling team |
| CN106839486A (en) * | 2017-03-07 | 2017-06-13 | 宁波市弘祥能源有限公司 | LNG cold energy cooling cycle systems |
| CN107345728A (en) * | 2017-06-16 | 2017-11-14 | 上海工程技术大学 | A kind of cold energy of liquefied natural gas peculiar to vessel is used for the System and method for of freezer refrigerating |
| KR20200041030A (en) * | 2018-10-11 | 2020-04-21 | 삼성중공업 주식회사 | Liquefied gas re-gasification system |
-
2004
- 2004-12-23 CN CN 200420114636 patent/CN2758674Y/en not_active Expired - Fee Related
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN100424450C (en) * | 2006-11-21 | 2008-10-08 | 华南理工大学 | Method for using cooling capacity of LNG with cooling media as medium and apparatus thereof |
| CN102563777A (en) * | 2010-12-31 | 2012-07-11 | 中国石油天然气集团公司 | System for collecting cold energy of liquefied natural gas in drilling team |
| CN106839486A (en) * | 2017-03-07 | 2017-06-13 | 宁波市弘祥能源有限公司 | LNG cold energy cooling cycle systems |
| CN107345728A (en) * | 2017-06-16 | 2017-11-14 | 上海工程技术大学 | A kind of cold energy of liquefied natural gas peculiar to vessel is used for the System and method for of freezer refrigerating |
| KR20200041030A (en) * | 2018-10-11 | 2020-04-21 | 삼성중공업 주식회사 | Liquefied gas re-gasification system |
| KR102562144B1 (en) * | 2018-10-11 | 2023-08-02 | 삼성중공업(주) | Liquefied gas re-gasification system |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN203824198U (en) | Marine LNG (Liquefied Natural Gas) cold energy and flue gas waste heat comprehensive utilization system | |
| CN206670103U (en) | A kind of cooling unit with auxiliary cold source | |
| CN103175324A (en) | Concurrent flow evaporative type condensation refrigerating unit with heat recovery | |
| CN201503166U (en) | Refrigeration heat recovery unit capable of producing high-temperature hot water | |
| CN102705927B (en) | A kind of ice conserve cold accumulation of heat super low temperature heat pump air-conditioning | |
| CN105387546B (en) | A kind of integration double source refrigeration station and refrigerating method | |
| CN202660658U (en) | Heat pump and fresh air integrated air conditioning system | |
| CN201229082Y (en) | Supermarket refrigeration system with natural working substance | |
| CN204202062U (en) | With the water-cooled cooling water air conditioner unit of ice-reserving function | |
| CN2758674Y (en) | Refrigerating device for recovering liquefied natural gas cold energy for cold storage | |
| CN1137359C (en) | Lithium bromide absorption type refrigerator suitable for large temp differnece and able to fully utilize energy | |
| CN102620489A (en) | Air conditioner heat pump unit with antifreeze solution regenerated heat recovery device | |
| CN107741075A (en) | A kind of ice-reserving heating double-purpose energy-saving air-conditioning device | |
| CN201731581U (en) | Novel water cold accumulation system | |
| CN204268750U (en) | A kind of net for air-source heat pump units utilizing waste heat energy storage to defrost | |
| CN104296286B (en) | Heat source tower refrigerating and heating energy-saving equipment with ice storage and heat storage functions | |
| CN201289172Y (en) | Water cold storage air conditioner energy-conserving system | |
| CN110332746A (en) | A kind of Cold Chain Logistics garden aggregation system based on LNG energy cascade utilization | |
| CN113531704B (en) | Low-temperature area heat and cold supply system and operation method | |
| CN201259350Y (en) | Heating and cooling air conditioner and sanitary hot water integrated modular refrigerating unit | |
| CN202274675U (en) | Phase change energy storage heat pump circulating system | |
| CN207065925U (en) | Cogeneration of heat and power residual heat integrative utilizes energy conserving system | |
| CN207815487U (en) | A kind of air heat-source tower heat pump system | |
| CN102620474A (en) | Air conditioner cold-hot water unit with antifreeze solution regenerated heat recovery device | |
| CN202581630U (en) | Antifreezing solution recovered heat recovery device used for refrigeration air-conditioning system |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C19 | Lapse of patent right due to non-payment of the annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |