CN103486878B - Heat exchanger for LNG refrigerator car and refrigerating system of LNG refrigerator car - Google Patents
Heat exchanger for LNG refrigerator car and refrigerating system of LNG refrigerator car Download PDFInfo
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- CN103486878B CN103486878B CN201310462105.4A CN201310462105A CN103486878B CN 103486878 B CN103486878 B CN 103486878B CN 201310462105 A CN201310462105 A CN 201310462105A CN 103486878 B CN103486878 B CN 103486878B
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Abstract
The invention discloses a heat exchanger for an LNG refrigerator car and a refrigerating system of the LNG refrigerator car, and belongs to the technical field of cold energy utilization. The heat changer comprises an outer box body, a middle box body, an inner box body, fins, a heat exchange copper pipe and an exhaust pipe. The inner box body is arranged in the middle box body, a sealed space is formed between the inner box body and the middle box body, the heat exchange copper pipe is arranged in the sealed space, the sealed space is communicated with the exhaust pipe, the outer box body is arranged outside the middle box body, and the fins are arranged between the outer box body and the middle box body and in the inner box body. The LNG refrigerator car provided with the heat exchanger is also provided with the refrigerating system. The LNG refrigerator car provided with the heat exchanger and the refrigerating system is good in refrigeration effect, high in heat exchange efficiency and good in safety performance.
Description
Technical field
The present invention relates to a kind of heat exchanger and refrigeration system thereof, more particularly, relate to the refrigeration system of a kind of heat exchanger for LNG refrigerator car and LNG refrigerator car thereof.
Background technology
Current China refrigerator car mainly contains mechanical refrigerator car, Cold board vehicle, liquid nitrogen storage car and dry ice refrigerator car etc., wherein based on mechanical refrigerator car, its refrigeration system is made up of compressor, condenser, expansion valve and evaporimeter, operation principle is vapor compression refrigeration, and compressor is driven by automobile engine through transmission mechanism; Cold board vehicle is the phase-change material phase change cold-storage utilized in cold drawing, for compartment provides cold; Liquid nitrogen storage car and dry ice refrigerator car are all the principles utilizing material decalescence, need regularly to annotate phase-change working substance.This several refrigerator car all needs independently refrigerating plant or equipment, and initial investment is large, and operating cost is high.
Liquified natural gas (LNG) refrigerator car adopts LNG as new forms of energy, there is certain advantage, must through the process of rewarming gasification before LNG enters engine, in the process of rewarming gasification, LNG needs to absorb a large amount of heat energy and discharges a large amount of cold energy in other words, but it is few to the utilization of LNG cold energy at present, the cold energy that LNG discharged in the past is not fully utilized, all be discharged in air, slattern in vain, if be used by this part energy, then operating cost can be reduced.In addition, LNG, in refrigerator car internal leakage, easily causes security incident, also becomes LNG refrigerator car and not yet obtains one of reason extensively promoted.
Through patent retrieval, the existing technical scheme for LNG cold energy use is open, as Chinese Patent Application No. 201210010484.9, Shen Qing Publication day is on July 11st, 2012, invention and created name is: a kind of cold energy utilization device for liquified natural gas refrigerator car, this application case relates to a kind of cold energy utilization device for liquified natural gas refrigerator car, comprise gas burning system and refrigeration system, gas burning system comprises LNG storage tank, plate-fin heat exchanger and water tank, LNG from storage tank out, enter in finned sheet exchanger with nitrogen heat exchange, engine is entered as combustion gas after entering water tank and water heat exchange again.Refrigeration system comprises two coil pipes, and nitrogen is out divided into two-way afterwards from heat exchanger: a road enter the coil pipe of refrigerator carriage with cold air heat exchange, the cold air after heat exchange provides cold energy for compartment; Another road enter in the coil pipe of driver's cabin with air heat-exchange, cold air is provided.This application case is the cold air that refrigerating box and driver's cabin provide comparatively high-quality while providing combustion gas to refrigerator car, reduce the waste of energy, but its weak point is: this application case is first by nitrogen and LNG heat exchange, again by nitrogen and air heat-exchange, cold air is provided, heat exchanger is installed on outside refrigerating box, and cold energy runs off large, and refrigeration is poor.
Summary of the invention
1. invent the technical problem that will solve
The exchanger heat that the object of the invention is to overcome existing LNG refrigerator car exchanges weak effect, the deficiency of potential safety hazard is there is in LNG in refrigerator car internal leakage, a kind of heat exchanger for LNG refrigerator car and refrigeration system thereof are provided, adopt technical scheme provided by the invention, not only good refrigeration effect, and solve the problem of LNG leakage, safe and reliable.
2. technical scheme
For achieving the above object, technical scheme provided by the invention is:
A kind of heat exchanger for LNG refrigerator car of the present invention, comprise outer case, middle housing, internal box, fin, heat exchange copper tube and blast pipe, described internal box is arranged at the inside of middle housing, and form seal cavity between internal box and middle housing, described heat exchange copper tube is arranged in above-mentioned seal cavity, and sealing space is connected with blast pipe, described outer case is arranged at the outside of middle housing, and described fin is arranged between outer case and middle housing and the inside of internal box.
Further, described fin equidistantly be arranged in parallel, and connects outer case and middle housing, forms heat exchanger channels.
Further, the shape of heat exchanger air outlet is flat.
The refrigeration system of a kind of LNG refrigerator car of the present invention, comprise LNG fluid reservoir and engine, also comprise air curtain, triple valve and above-mentioned heat exchanger, described LNG fluid reservoir is connected with the heat exchange copper tube import of heat exchanger, the air inlet of engine respectively by triple valve, the heat exchange copper tube outlet of described heat exchanger is connected with the air inlet of engine, and the air outlet of described air curtain is corresponding with the air inlet of heat exchanger.
Further, also comprise temperature controller and temperature sensor, described air curtain is connected with the output of temperature controller, and the input of described temperature controller is connected with temperature sensor.
Further, also comprise cold-storage device, the air inlet of described cold-storage device is corresponding with the air outlet of heat exchanger.
Further, described LNG fluid reservoir and the connecting line of heat exchanger are provided with the first vacuum sleeve, the connecting line of heat exchanger and engine are provided with the second vacuum sleeve, described heat exchanger is provided with frost removal.
Further, the air inlet place of described engine is disposed with surge tank, pressure regulator valve and gasifier, and the water inlet of described gasifier is connected with the coolant outlet of engine, and the delivery port of described gasifier is connected with engine cool water inlet.
Further, the blast pipe of described heat exchanger stretches out outside refrigerator car.
Further, described air curtain and heat exchanger are arranged in the top inner wall of refrigerator car, or air curtain and heat exchanger are arranged on the leading flank inwall of refrigerator car, or heat exchanger is arranged in the top inner wall of refrigerator car, air curtain is arranged in the Inner eycle horn mouth of connection refrigerator car front side wall.
3. beneficial effect
Adopt technical scheme provided by the invention, compared with existing known technology, there is following remarkable result:
(1) a kind of heat exchanger for LNG refrigerator car of the present invention, seal cavity is formed between its internal box and middle housing, heat exchange copper tube is arranged in above-mentioned seal cavity, and sealing space is connected with blast pipe, when LNG occurs to leak, LNG gas can be discharged in air from blast pipe, gets rid of the potential safety hazard caused because of leakage; Outer case is arranged at the outside of middle housing, and fin is arranged between outer case and middle housing and the inside of internal box, adds heat exchange area, improves refrigeration;
(2) a kind of heat exchanger for LNG refrigerator car of the present invention, the shape of heat exchanger air outlet is flat, makes the air flowed out by heat exchanger be subject to certain resistance, extends the time of staying of air on heat exchanger fin, improves heat transfer effect;
(3) refrigeration system of a kind of LNG refrigerator car of the present invention, its LNG fluid reservoir is connected with the heat exchange copper tube import of heat exchanger, the air inlet of engine respectively by triple valve, the heat exchange copper tube outlet of heat exchanger is connected with the air inlet of engine, by controlling triple valve, the start and stop of refrigeration system effectively can be controlled;
(4) refrigeration system of a kind of LNG refrigerator car of the present invention, the air outlet of its air curtain is connected with the air inlet of heat exchanger, air curtain is connected with the output of temperature controller, the input of temperature controller is connected with temperature sensor, controlled the air output of air curtain by temperature controller, thus regulate the temperature in refrigerator car;
(5) refrigeration system of a kind of LNG refrigerator car of the present invention, the air inlet of its cold-storage device is corresponding with the air outlet of heat exchanger, and cold-storage device can storage area cold energy, when stopping or refrigeration fault occurs, can be refrigerator car and providing cold energy;
(6) refrigeration system of a kind of LNG refrigerator car of the present invention, the connecting line of LNG fluid reservoir and heat exchanger is provided with the first vacuum sleeve, the connecting line of heat exchanger and engine is provided with the second vacuum sleeve, heat exchanger is provided with frost removal, effectively can prevent heat exchanger and connecting line frosting thereof, ensure good refrigeration;
(7) refrigeration system of a kind of LNG refrigerator car of the present invention, the air inlet place of engine is disposed with surge tank, pressure regulator valve and gasifier, the water inlet of gasifier is connected with the coolant outlet of engine, the delivery port of gasifier is connected with engine cool water inlet, utilizes on the one hand the cooling water of engine to heat for the LNG after gasification, meets the work requirements of engine, on the other hand cooling water through with LNG heat exchange after, continue as engine cooling, recycle, energy-saving and emission-reduction.
Accompanying drawing explanation
Fig. 1 is the structural representation of a kind of heat exchanger for LNG refrigerator car of the present invention;
Fig. 2 is the plan structure schematic diagram of a kind of heat exchanger for LNG refrigerator car of the present invention;
Fig. 3 is the refrigeration system schematic diagram of a kind of LNG refrigerator car of the present invention;
Fig. 4 is air curtain in the present invention and heat exchanger the first mounting structure schematic diagram in refrigerator car;
Fig. 5 is air curtain in the present invention and the second mounting structure schematic diagram of heat exchanger in refrigerator car;
Fig. 6 is air curtain in the present invention and heat exchanger the third mounting structure schematic diagram in refrigerator car.
Label declaration in schematic diagram:
1, LNG fluid reservoir; 2, temperature controller; 3, air curtain; 4, heat exchanger; 5, engine; 6, gasifier; 7, pressure regulator valve; 8, surge tank; 9, the first vacuum sleeve; 10, the second vacuum sleeve; 11, triple valve; 12, refrigerator car; 13, cold-storage device; 41, outer case; 42, middle housing; 43, internal box; 44, fin; 45, blast pipe; 46, heat exchange copper tube.
Detailed description of the invention
For understanding content of the present invention further, the present invention is described in detail by reference to the accompanying drawings.
Composition graphs 1 and Fig. 2, a kind of heat exchanger for LNG refrigerator car of the present invention, comprise outer case 41, middle housing 42, internal box 43, fin 44, heat exchange copper tube 46 and blast pipe 45, internal box 43 is arranged at the inside of middle housing 42, and form seal cavity between internal box 43 and middle housing 42, heat exchange copper tube 46 is arranged in above-mentioned seal cavity, and sealing space is connected with blast pipe 45, outer case 41 is arranged at the outside of middle housing 42, and fin 44 is equidistantly set in parallel between outer case 41 and middle housing 42 and the inside of internal box 43.
Composition graphs 3, the refrigeration system of a kind of LNG refrigerator car of the present invention, comprise LNG fluid reservoir 1, temperature controller 2, temperature sensor, air curtain 3, engine 5, triple valve 11, cold-storage device 13 and above-mentioned heat exchanger 4, LNG fluid reservoir 1 by triple valve 11 respectively with heat exchange copper tube 46 import of heat exchanger 4, the air inlet of engine 5 is connected, the heat exchange copper tube 46 of heat exchanger 4 exports and is connected with the air inlet of engine 5, the air outlet of air curtain 3 is corresponding with the air inlet of heat exchanger 4, the air inlet of cold-storage device 13 is corresponding with the air outlet of heat exchanger 4, air curtain 3 is connected with the output of temperature controller 2, the input of temperature controller 2 is connected with temperature sensor.LNG fluid reservoir 1 and the connecting line of heat exchanger 4 are provided with the first vacuum sleeve 9, heat exchanger 4 and the connecting line of engine 5 are provided with the second vacuum sleeve 10, heat exchanger 4 is provided with frost removal.The air inlet place of engine 5 is disposed with surge tank 8, pressure regulator valve 7 and gasifier 6, and the water inlet of gasifier 6 is connected with the coolant outlet of engine 5, and the delivery port of gasifier 6 is connected with engine 5 cooling water inlet.
Composition graphs 4, Fig. 5 and Fig. 6, the refrigeration system of a kind of LNG refrigerator car of the present invention, the blast pipe 45 of heat exchanger 4 stretches out outside refrigerator car 12.Air curtain 3 and heat exchanger 4 are arranged in the top inner wall of refrigerator car 12, and the air inlet of cold-storage device 13 is corresponding with the air outlet of heat exchanger 4, and is also arranged in the top inner wall of refrigerator car 12; Or air curtain 3 is arranged on the leading flank inwall of refrigerator car 12 with heat exchanger 4, the air inlet of cold-storage device 13 is corresponding with the air outlet of heat exchanger 4, and is arranged in the top inner wall of refrigerator car 12; Or heat exchanger 4 is arranged in the top inner wall of refrigerator car 12, air curtain 3 is arranged in the Inner eycle horn mouth of connection refrigerator car 12 front side wall, the air inlet of cold-storage device 13 is corresponding with the air outlet of heat exchanger 4, and is arranged in the top inner wall of refrigerator car 12.
Below in conjunction with embodiment, the invention will be further described.
Embodiment 1
A kind of heat exchanger for LNG refrigerator car of the present embodiment, comprise outer case 41, middle housing 42, internal box 43, fin 44, heat exchange copper tube 46 and blast pipe 45, internal box 43 is arranged at the inside of middle housing 42, and form seal cavity between internal box 43 and middle housing 42, heat exchange copper tube 46 is arranged in above-mentioned seal cavity, and sealing space is connected with blast pipe 45, when LNG occurs to leak, LNG gas can be discharged in air from blast pipe 45, in refrigerator car 12 inner accumulated, the potential safety hazard caused because of leakage can not be got rid of.Outer case 41 is arranged at the outside of middle housing 42, fin 44 is arranged between outer case 41 and middle housing 42 and the inside of internal box 43, wherein, fin 44 equidistantly be arranged in parallel, and connects outer case 41 and middle housing 42, forms heat exchanger channels, air is by this heat exchanger channels, contact with fin 44, add heat exchange area, improve refrigeration.Utilize the pressure in LNG fluid reservoir 1 because LNG flows out from LNG fluid reservoir 1, usually at about 1.0Mpa, temperature is at about-124 DEG C, temperature is still very low, but the flow velocity of LNG when supply engine 5 is also unhappy, this means that the effect of heat exchange can not be fine, the shape of heat exchanger 4 air outlet in the present embodiment is flat, its size is less than the size of heat exchanger 4 air inlet, the air flowed out by heat exchanger 4 is made to be subject to certain resistance, extend the time of staying of air on heat exchanger 4 fin 44, improve heat transfer effect.
The refrigeration system of a kind of LNG refrigerator car of the present embodiment, comprise LNG fluid reservoir 1, temperature controller 2, temperature sensor, air curtain 3, engine 5, triple valve 11, cold-storage device 13 and above-mentioned heat exchanger 4, LNG fluid reservoir 1 by triple valve 11 respectively with heat exchange copper tube 46 import of heat exchanger 4, the air inlet of engine 5 is connected, the heat exchange copper tube 46 of heat exchanger 4 exports and is connected with the air inlet of engine 5, can be understood as heat exchanger 4 is connected in parallel between LNG fluid reservoir 1 and engine 5, when refrigerator car 12 freezes, LNG is through heat exchanger 4 and flows into engine 5, rewarming gasification is carried out in heat exchanger 4, discharge cold energy simultaneously, when not needing refrigeration, disconnect the path of heat exchanger 4, LNG flows directly into engine 5, can not affect the operation of refrigerator car, by controlling triple valve 11, effectively can control the start and stop of refrigeration system.The air outlet of air curtain 3 is corresponding with the air inlet of heat exchanger 4, and air curtain 3 is connected with the output of temperature controller 2, and the input of temperature controller 2 is connected with temperature sensor, is controlled the air output of air curtain 3 by temperature controller 2, thus regulates the temperature in refrigerator car 12.The air inlet of cold-storage device 13 is corresponding with the air outlet of heat exchanger 4, and cold-storage device 13 can storage area cold energy, when stopping or refrigeration fault occurs, can be refrigerator car 12 and providing cold energy.Cold-storage device 13 is the flat square casing of aluminum, spreads all over and has strip fin, is the glycol water of 68% built with concentration.
The refrigeration system of a kind of LNG refrigerator car of the present embodiment, LNG fluid reservoir 1 and the connecting line of heat exchanger 4 are provided with the first vacuum sleeve 9, heat exchanger 4 and the connecting line of engine 5 are provided with the second vacuum sleeve 10, heat exchanger 4 is provided with frost removal, effectively can prevent heat exchanger 4 and connecting line frosting thereof, ensure good refrigeration.The air inlet place of engine 5 is disposed with surge tank 8, pressure regulator valve 7 and gasifier 6, the water inlet of gasifier 6 is connected with the coolant outlet of engine 5, the delivery port of gasifier 6 is connected with engine 5 cooling water inlet, the cooling water of engine 5 is utilized on the one hand to heat for the LNG after gasification, meet the work requirements of engine 5, on the other hand cooling water through with LNG heat exchange after, continue as engine 5 and lower the temperature, recycle, energy-saving and emission-reduction.As shown in Figure 4, in the present embodiment, the blast pipe 45 of heat exchanger 4 stretches out outside refrigerator car 12, is discharged in air, avoids causing security incident by the LNG leaked out.Air curtain 3 and heat exchanger 4 are arranged in the top inner wall of refrigerator car 12, the air inlet of cold-storage device 13 is corresponding with the air outlet of heat exchanger 4, and be also arranged in the top inner wall of refrigerator car 12, for the refrigerator car that refrigerator car 12 is longer, because the proportion of cold air is slightly high, can realize the free convection along refrigerator car 12 length direction, space layout is reasonable, be conducive to making full use of of cold energy, and the stacking of article in refrigerator car can not be affected.
Embodiment 2
The present embodiment a kind of for the heat exchanger of LNG refrigerator car and the basic structure of refrigeration system thereof with embodiment 1, difference is: air curtain 3 and heat exchanger 4 are arranged at (as shown in Figure 5) on the leading flank inwall of refrigerator car 12, the air inlet of cold-storage device 13 is corresponding with the air outlet of heat exchanger 4, and be arranged in the top inner wall of refrigerator car 12, for the refrigerator car that refrigerator car 12 is higher, realize free convection from top to bottom, also can not affect the stacking of article in refrigerator car simultaneously.
Embodiment 3
The present embodiment a kind of for the heat exchanger of LNG refrigerator car and the basic structure of refrigeration system thereof with embodiment 1, difference is: heat exchanger 4 is arranged in the top inner wall of refrigerator car 12, air curtain 3 is arranged at the Inner eycle horn mouth interior (as shown in Figure 6) connecting refrigerator car 12 front side wall, the air inlet of cold-storage device 13 is corresponding with the air outlet of heat exchanger 4, and be arranged in the top inner wall of refrigerator car 12, for the refrigerator car that refrigerator car 12 is less, make full use of the space that refrigerator car 12 is limited, the stacking of article in refrigerator car can not be affected.
For understanding content of the present invention better, now provide the workflow of the refrigeration system of a kind of LNG refrigerator car of the present invention.
The refrigeration system of a kind of LNG refrigerator car of the present invention, LNG in LNG fluid reservoir 1 is under the pressure of 1.0Mpa, heat exchanger 4 is flow to by triple valve 11 with the low temperature of about-124 DEG C, rewarming gasification in heat exchanger 4, and discharge cold energy, owing to pipeline being provided with the first vacuum sleeve 9 and the second vacuum sleeve 10, avoid frosting on pipeline, heat exchanger 4 arranges frost removal simultaneously, ensure good refrigeration; Rewarming gasification after LNG due to temperature still lower, the job requirement of engine 5 can not be met well, therefore before LNG enters engine 5, be introduced in gasifier 6, again heat in gasifier 6, and then enter in surge tank 8 by pressure regulator valve 7, send LNG gas to engine 5 by surge tank 8, complete refrigeration and the operation of LNG refrigerator car.Temperature in temperature sensor measurement refrigerator car 12, and temperature data is passed to temperature controller 2, temperature controller 2 controls the air output of air curtain 3, thus controls the temperature in refrigerator car 12.A part of cold energy in heat exchanger 4 can be stored in cold-storage device 13, when stopping or refrigeration fault occurs, can be the cold energy that refrigerator car provides lasting, ensureing the cooling quality in refrigerator car 12.If the LNG in heat exchanger 4 leaks, LNG gas will be discharged heat exchanger 4 by blast pipe 45 by LNG, enter in air, avoid LNG gas, in refrigerator car 12 inner accumulated, security incident occurs.A kind of heat exchanger for LNG refrigerator car of the present invention and refrigeration system, not only good refrigeration effect, and the problem solving LNG leakage, safe and reliable.
Schematically above be described the present invention and embodiment thereof, this description does not have restricted, and also just one of the embodiments of the present invention shown in accompanying drawing, actual structure is not limited thereto.So, if those of ordinary skill in the art enlightens by it, when not departing from the invention aim, designing the frame mode similar to this technical scheme and embodiment without creationary, all should protection scope of the present invention be belonged to.
Claims (10)
1. the heat exchanger for LNG refrigerator car, it is characterized in that: comprise outer case (41), middle housing (42), internal box (43), fin (44), heat exchange copper tube (46) and blast pipe (45), described internal box (43) is arranged at the inside of middle housing (42), and form seal cavity between internal box (43) and middle housing (42), described heat exchange copper tube (46) is arranged in above-mentioned seal cavity, and sealing space is connected with blast pipe (45), described outer case (41) is arranged at the outside of middle housing (42), described fin (44) is arranged between outer case (41) and middle housing (42) and the inside of internal box (43).
2. a kind of heat exchanger for LNG refrigerator car according to claim 1, is characterized in that: described fin (44) equidistantly be arranged in parallel, and connects outer case (41) and middle housing (42), forms heat exchanger channels.
3. a kind of heat exchanger for LNG refrigerator car according to claim 1 and 2, is characterized in that: the shape of heat exchanger (4) air outlet is flat.
4. the refrigeration system of a LNG refrigerator car, comprise LNG fluid reservoir (1) and engine (5), it is characterized in that: also comprise air curtain (3), triple valve (11) and the heat exchanger described in claims 1 to 3 any one (4), described LNG fluid reservoir (1) by triple valve (11) respectively with heat exchange copper tube (46) import of heat exchanger (4), the air inlet of engine (5) is connected, heat exchange copper tube (46) outlet of described heat exchanger (4) is connected with the air inlet of engine (5), the air outlet of described air curtain (3) is corresponding with the air inlet of heat exchanger (4).
5. the refrigeration system of a kind of LNG refrigerator car according to claim 4, it is characterized in that: also comprise temperature controller (2) and temperature sensor, described air curtain (3) is connected with the output of temperature controller (2), and the input of described temperature controller (2) is connected with temperature sensor.
6. the refrigeration system of a kind of LNG refrigerator car according to claim 5, is characterized in that: also comprise cold-storage device (13), the air inlet of described cold-storage device (13) is corresponding with the air outlet of heat exchanger (4).
7. the refrigeration system of a kind of LNG refrigerator car according to claim 6, it is characterized in that: described LNG fluid reservoir (1) and the connecting line of heat exchanger (4) are provided with the first vacuum sleeve (9), heat exchanger (4) and the connecting line of engine (5) are provided with the second vacuum sleeve (10), described heat exchanger (4) is provided with frost removal.
8. the refrigeration system of a kind of LNG refrigerator car according to claim 7, it is characterized in that: the air inlet place of described engine (5) is disposed with surge tank (8), pressure regulator valve (7) and gasifier (6), the water inlet of described gasifier (6) is connected with the coolant outlet of engine (5), and the delivery port of described gasifier (6) is connected with engine (5) cooling water inlet.
9. the refrigeration system of a kind of LNG refrigerator car according to claim 8, is characterized in that: the blast pipe (45) of described heat exchanger (4) stretches out refrigerator car (12) outward.
10. the refrigeration system of a kind of LNG refrigerator car according to claim 9, it is characterized in that: described air curtain (3) and heat exchanger (4) are arranged in the top inner wall of refrigerator car (12), or air curtain (3) is arranged on the leading flank inwall of refrigerator car (12) with heat exchanger (4), or heat exchanger (4) is arranged in the top inner wall of refrigerator car (12), air curtain (3) is arranged in the Inner eycle horn mouth of connection refrigerator car (12) front side wall.
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| CN201310462105.4A CN103486878B (en) | 2013-09-30 | 2013-09-30 | Heat exchanger for LNG refrigerator car and refrigerating system of LNG refrigerator car |
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| CN103486878B true CN103486878B (en) | 2015-04-08 |
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| FR3028930B1 (en) * | 2014-11-20 | 2016-12-02 | Air Liquide | COMPACT EXCHANGER FOR CRYOGENIC TRANSPORT IN INDIRECT INJECTION |
| CN104457087B (en) * | 2014-12-18 | 2017-01-18 | 常州科瑞德能源科技有限公司 | Liquid natural gas (LNG) engine refrigerating system capable of continuously supplying cold energy and application thereof |
| EP3256797A1 (en) | 2015-02-12 | 2017-12-20 | Carrier Corporation | Chiller for refrigeration system |
| CN105667257A (en) * | 2016-03-07 | 2016-06-15 | 辽宁澳深低温装备股份公司 | Cold energy recycling system for LNG refrigerated vehicle |
| CN108909409A (en) * | 2018-06-28 | 2018-11-30 | 中原工学院 | A kind of LNG refrigerator car chilled ceiling panel cold supply system |
| CN111673999A (en) * | 2020-05-08 | 2020-09-18 | 中天科技精密材料有限公司 | Preparation method and preparation system of transparent film |
| CN112432050B (en) * | 2020-12-04 | 2022-01-25 | 重庆凯瑞动力科技有限公司 | Efficient energy-saving heat exchange system utilizing LNG cold energy |
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