CN201982203U - Heat exchange device of automobile air conditioner for recycling cold energy of liquefied natural gas - Google Patents
Heat exchange device of automobile air conditioner for recycling cold energy of liquefied natural gas Download PDFInfo
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- CN201982203U CN201982203U CN2011200240609U CN201120024060U CN201982203U CN 201982203 U CN201982203 U CN 201982203U CN 2011200240609 U CN2011200240609 U CN 2011200240609U CN 201120024060 U CN201120024060 U CN 201120024060U CN 201982203 U CN201982203 U CN 201982203U
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- 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
- Y02T—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO TRANSPORTATION
- Y02T10/00—Road transport of goods or passengers
- Y02T10/10—Internal combustion engine [ICE] based vehicles
- Y02T10/30—Use of alternative fuels, e.g. biofuels
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Abstract
The utility model relates to heat exchanger equipment and discloses a heat exchange device of an automobile air conditioner for recycling the cold energy of liquefied natural gas (LNG), which comprises a multi-channel plate-fin LNG vaporizer and a plate-fin secondary refrigerant heat exchanger. The multi-channel plate-fin LNG vaporizer comprises LNG side inlet/outlet end sockets, overheat gas inlet/outlet end sockets and a heat exchange plate bundle; the heat exchange plate bundle of the LNG vaporizer comprises LNG side fins, overheat gas side fins, partition plates, an end sealing strip and two side plates, and 5 heat exchange channels are formed among the partition plates; the plate-fin secondary refrigerant heat exchanger comprises secondary refrigerant inlet/outlet end sockets, gas inlet/outlet end sockets and a heat exchange plate bundle; and the secondary refrigerant heat exchange plate bundle comprises overheat gas side fins, secondary refrigerant side fins, partition plates and two side plates, and 17 heat exchange channels are formed among the partition plates. The heat exchange device of the automobile air conditioner for recycling the cold energy of LNG can effectively solve the freezing problem in the heat exchange process of secondary refrigerant and LNG.
Description
Technical field:
The utility model relates to heat exchange equipment, relates in particular to a kind of car air conditioner heat-exchanger rig that reclaims cold energy of liquefied natural gas.
Background technique:
Along with developing rapidly of China's LNG Liquefied natural gas (LNG) industry; the continuous progress of the liquefaction of LNG, reception, storage, dispensing and application technology thereof; make LNG receive much concern as the new technology of automotive fuel, many urban sizeizations put into effect LNG fuel bus in the whole nation, LNG fuel heavy hauler and engineering vehicle also quantized to produce and go into operation.It should be noted that, because LNG is a kind of liquid fuel that is stored under the low temperature (the normal pressure storage temperature is for-162 ℃), enter as automotive fuel and all will be vaporized into gaseous state and rewarming before the engine combustion acting usually near ambient temperature, this process need absorbs a large amount of heats, can utilize this effect to provide cold for the LNG car air conditioner, both saved the wasted work that drives automobile air conditioner compressor, having avoided freezing medium leakage to the danger that environment pollutes again, is a kind of real energy saving and environment friendly " green car air-conditioning " technology.
Yet, LNG has covered very big warm area scope from-162 ℃ to ambient temperature in the diabatic process of vaporization rewarming, cold carrying agent of conventional refrigeration system in this warm area (for example water) even carbon dioxide all have the possibility of freezing, freeze the back and gently then make the temperature conductivity variation of heat-exchanger rig, the refrigerating capacity deficiency of automotive air-conditioning system, heavy then cause the ice of heat exchanger channels stifled, heat-exchanger rig was thoroughly lost efficacy, and LNG can't vaporize, and directly causes the LNG motor car engine flame-out.Therefore, solving frozen problem is one of key technology difficult problem that guarantees LNG automobile and the normal operation of LNG automotive air-conditioning system.On the other hand, because the travelling comfort requirement of air-conditioning system self cold under the LNG low temperature directly is delivered to conditioned space not only can causes freezing of airborne water vapor and carbon dioxide, and travelling comfort can not be satisfied the air-conditioning system requirement.The disclosed a kind of car air conditioner heat-exchanger rig that reclaims cold energy of liquefied natural gas of the utility model can solve the frozen problem in cold carrying agent and the LNG heat transfer process effectively, can guarantee simultaneously that the cold that offers automotive air-conditioning system reaches relevant travelling comfort requirement, make and can not produce the stifled and frosting of ice in the A/C evaporator.
The model utility content:
The purpose of this utility model is, provide a kind of cold carrying agent and cryogenic natural gas that reclaims the car air conditioner of cold energy of liquefied natural gas not have the heat transfer technology of freezing, it at first makes rock gas behind LNG and the rewarming carry out heat exchange and is vaporized into gaseous state and reaches certain degree of superheat, carry out heat exchange by cold carrying agent and overheated rock gas more afterwards, can guarantee that cold carrying agent does not freeze in heat transfer process, and the heat exchange continuously and stably and low temperature cold of LNG successfully is delivered to the conditioned space refrigeration satisfying under the prerequisite that the air-conditioning system travelling comfort requires.
In order to achieve the above object, the utility model adopts following technological scheme to be achieved:
A kind of car air conditioner heat-exchanger rig that reclaims cold energy of liquefied natural gas comprises that the overheated rock gas behind LNG and the rewarming carries out the multichannel plate and fin type LNG vaporizer of heat exchange and the plate and fin type cold carrying agent heat exchanger of overheated rock gas and cold carrying agent heat exchange.Multichannel plate and fin type LNG vaporizer is imported and exported end socket, overheated rock gas import and export end socket and heat exchanging plate Shu Zucheng by the LNG side; LNG vaporizer heat exchanging plate bundle comprises LNG side fin, overheated rock gas side fin, dividing plate, end strip of paper used for sealing and both sides side plate; 5 heat exchanger channels that form between dividing plate and dividing plate are respectively the two gangs of LNG (A) of intercross arrangement and the fluid interchange passage of three strands of overheated rock gases (B), and channel arrangement is the BABAB type.The plate and fin type cold carrying agent heat exchanger of overheated rock gas and cold carrying agent heat exchange comprises that cold carrying agent is imported and exported end socket, rock gas is imported and exported end socket and heat exchanging plate bundle; Cold carrying agent heat exchanging plate bundle is made up of overheated rock gas side fin, cold carrying agent side fin, dividing plate, end strip of paper used for sealing and both sides side plate; 17 passages that form between dividing plate and the dividing plate are respectively the 9 strands of cold carrying agents (C) of intercross arrangement and the fluid interchange passage of 8 strands of overheated rock gases (B), and the channel arrangement pattern is CBCBCBCBCBCBCBCBC.The thickness of described dividing plate is 1mm, and the both sides side plate thickness is 12mm, and described LNG side fin is the flexuose plain fin, and the fin wing is high to be that 6.5mm, sawtooth pitch are that 2.1mm, fin thickness are 0.3mm; Described overheated rock gas side fin is the flexuose fin, and fin height is that 9.5mm, sawtooth pitch are that 1.7mm, fin thickness are 0.2mm; Described cold carrying agent side fin is the flexuose plain fin, and the fin wing is high to be that 6.5mm, sawtooth pitch are that 2.1mm, fin thickness are 0.3mm.
The beneficial effects of the utility model: the car air conditioner heat-exchanger rig of the disclosed recovery cold energy of liquefied natural gas of the utility model can realize that the rock gas heating after low temperature LNG is by rewarming is vaporized into gaseous state and is superheated to higher temperature, conduct heat again and between the cold carrying agent, avoided the stifled problem of the ice that cold carrying agent is direct and the LNG heat exchange may cause.Owing to adopted the multichannel plate-fin heat exchanger, heat exchange area between LNG and overheated rock gas, overheated rock gas and cold carrying agent is improved greatly, by adopting serrated fin effectively to improve the heat-exchange performance of heat exchanger, make heat exchanger structure compact more, volume is little, in light weight, reduce influence as much as possible, make the integrated more convenient flexible of LNG automotive air-conditioning system and LNG automobile carload lot.
Description of drawings:
Fig. 1 is a kind of systematic schematic diagram that reclaims the car air conditioner heat-exchanger rig of cold energy of liquefied natural gas;
Fig. 2 is the structural representation of multichannel plate and fin type LNG vaporizer among Fig. 1, and wherein Fig. 2 a is a plan view, and Fig. 2 b is a left view;
Fig. 3 is the plate and fin type cold carrying agent heat exchanger structure schematic representation of overheated rock gas and cold carrying agent heat exchange among Fig. 1, and wherein Fig. 3 a is a plan view, and Fig. 3 b is a left view;
Among the figure: 1 is the LNG basin; 2 is the LNG flow control valve; 3 is multichannel plate and fin type LNG vaporizer; 4 is plate and fin type cold carrying agent heat exchanger.
Embodiment:
Below in conjunction with accompanying drawing the utility model is done and to be described in further detail:
With reference to Fig. 1, Fig. 2, Fig. 3, the utility model discloses a kind of car air conditioner heat-exchanger rig that reclaims cold energy of liquefied natural gas, it comprises: the overheated rock gas behind LNG and the rewarming carries out the multichannel plate and fin type LNG vaporizer 3 of heat exchange and the plate and fin type cold carrying agent heat exchanger 4 of overheated rock gas and cold carrying agent heat exchange, wherein multichannel plate and fin type LNG vaporizer has the two gangs of LNG (A) of intercross arrangement and the fluid interchange passage of three strands of overheated rock gases (B), and channel arrangement is the BABAB type; Plate and fin type cold carrying agent heat exchanger 4 has the 9 strands of cold carrying agents (C) of intercross arrangement and the fluid interchange passage of 8 strands of overheated rock gases (B), and the channel arrangement pattern is CBCBCBCBCBCBCBCBC.
The fundamental diagram of the car air conditioner heat-exchanger rig of the recovery cold energy of liquefied natural gas that reference is shown in Figure 1, LNG is come out to be connected with LNG flow control valve 2 through C1 by LNG basin 1, be connected with multichannel plate and fin type LNG vaporizer 3 through LNG inlet C2 more afterwards, be connected through the gas inlet C4 of piping by LNG outlet C3 through multichannel plate and fin type LNG vaporizer 3 backs with plate and fin type cold carrying agent heat exchanger 4, be connected through the overheated gas inlet C6 of piping by gas outlet C5 by plate and fin type cold carrying agent heat exchanger 4 backs with multichannel plate and fin type LNG vaporizer 3, by behind the heat exchanger channels of multichannel plate and fin type LNG vaporizer 3 by overheated gas outlet C7, gas inlet C8 with plate and fin type cold carrying agent heat exchanger 4 is connected through pipeline, be connected through the overheated gas inlet C10 of piping by gas outlet C9 by plate and fin type cold carrying agent heat exchanger 4 backs with multichannel plate and fin type LNG vaporizer 3, by behind the heat exchanger channels of multichannel plate and fin type LNG vaporizer 3 by overheated gas outlet C11, gas inlet C12 with plate and fin type cold carrying agent heat exchanger 4 is connected through pipeline, be connected through the overheated gas inlet C14 of piping by gas outlet C13 by plate and fin type cold carrying agent heat exchanger 4 backs with multichannel plate and fin type LNG vaporizer 3, by behind the heat exchanger channels of multichannel plate and fin type LNG vaporizer 3 by overheated gas outlet C15, gas inlet C16 with plate and fin type cold carrying agent heat exchanger 4 is connected through pipeline, is connected with the engine charge pipeline by plate and fin type cold carrying agent heat exchanger 4 backs.
The structural representation of described multichannel plate and fin type LNG vaporizer 3 is referring to Fig. 2: described multichannel plate and fin type LNG vaporizer 3 is imported and exported end socket 3-1a, 3-1b by the LNG side, and overheated rock gas side is imported and exported end socket 3-2a, 3-2b and carried out argon arc welding with heat exchanging plate bundle 3-3 and assemble.Described heat exchanging plate bundle 3-3 structure is as follows: place flexuose fin 3-3-1a between side plate 3-3-3 and the dividing plate 3-3-4 and form an overheated natural gas flow heat exchanger channels, place flexuose fin 3-3-2a between dividing plate 3-3-4 and another dividing plate and form LNG fluid interchange passage, on dividing plate, place flexuose fin 3-3-1b again, add a dividing plate again and constitute an overheated natural gas flow heat exchanger channels, place flexuose fin 3-3-2b afterwards again and between another dividing plate and form LNG fluid interchange passage, after placing flexuose fin 3-3-1c on the dividing plate, place a side plate again, form an overheated natural gas flow heat exchanger channels, place strip of paper used for sealing at last at plate bundle two ends, Shu Jinhang is integral braze-welded for the exchange hot plate.Described LNG side is imported and exported end socket 3-1a, 3-1b cavity and two LNG heat exchanger channels welding, LNG is walked abreast be divided into two plumes to cross two heat exchanger channels, and welded joint C2 on the end socket 3-1a, on end socket 3-1b welded joint C3; Described overheated rock gas side is imported and exported in end socket 3-2a, the 3-2b cavity and is welded two floors respectively, the end socket chamber is divided into 3 sections respectively corresponding three overheated heat exchange gas passages, and on the end socket chamber, weld three joints respectively, promptly end socket 3-2a goes up welding C6, C10, three joints of C14; End socket 3-2b goes up welding C7, C11, three joints of C15.Described LNG side flexuose fin wing is high to be that 6.5mm, sawtooth pitch are that 2.1mm, fin thickness are 0.3mm; Described overheated rock gas side flexuose fin height is that 9.5mm, sawtooth pitch are that 1.7mm, fin thickness are 0.2mm; Described block board thickness is 1mm; Described side plate thickness is 12mm.
The structural representation of described plate and fin type cold carrying agent heat exchanger 4 is referring to Fig. 3: described plate and fin type cold carrying agent heat exchanger 4 is imported and exported end socket 4-1a, 4-1b by cold carrying agent, and overheated rock gas imports and exports end socket 4-2a, 4-2b and heat exchanging plate bundle 4-3 carries out the assembling of argon arc welding integral solder.Described heat exchanging plate bundle 4-3 assembling mode is as follows: place first layer flexuose fin 4-3-1 between side plate 4-3-3 and dividing plate 4-3-4 and constitute a cold carrying agent fluid interchange passage, between dividing plate 4-3-4 and another dividing plate, place second layer flexuose fin 4-3-2 again and form a natural gas flow heat exchanger channels, then place the 3rd layer of flexuose fin 4-3-1 again, add one deck dividing plate 4-3-4 again, place the 4th layer of flexuose fin 4-3-2 again, so alternately place fin, place one deck dividing plate between the fin, after placing the 17 layer of flexuose fin 4-3-1, add one deck side plate 4-3-3, after corresponding strip of paper used for sealing is placed at plate bundle two ends, carry out integral braze-welded.It is semicircle cavity that described cold carrying agent side is imported and exported end socket 4-1a, 4-1b, the cavity two ends are welded with closure plate, and on end socket 4-1a, 4-1b respectively welded joint C18 and C19, end socket 4-1a, 4-1b cavity are welded in heat exchanging plate bundle two ends, make the cold carrying agent parallel stream cross 9 layers of cold carrying agent side flow heat exchanger channels; It is semicircle cavity that described overheated rock gas is imported and exported end socket 4-2a, 4-2b, each cavity two ends is welded with closure plate, and all welding 3 floors in each cavity is 4 little cavitys with the cavity equipartition, all be welded with joint at each little cavity, as: 4 cavitys of end socket 4-2a are welded with joint C5, C9, C13, C17 respectively; 4 cavitys of end socket 4-2b are welded with joint C4, C8, C12, C16 respectively; Overheated rock gas is imported and exported end socket 4-2a, 4-2b and is welded in heat exchanging plate bundle two ends, corresponding two the overheated natural gas flow heat exchanger channels of each loculus body of end socket.Described cold carrying agent side flexuose fin wing is high to be that 6.5mm, sawtooth pitch are that 2.1mm, fin thickness are 0.3mm; Described overheated rock gas side flexuose fin height is that 9.5mm, sawtooth pitch are that 1.7mm, fin thickness are 0.2mm; Described block board thickness is 1mm; Described side plate thickness is 12mm.
Use step of the present utility model and working principle are: LNG by the LNG basin after Flux Valve Control is regulated, enter in the multichannel plate and fin type LNG vaporizer with rewarming after overheated rock gas carry out becoming-90 ℃ cryogenic natural gas after heat exchange is vaporized into gaseous state and reaches certain degree of superheat, enter again in the plate and fin type cold carrying agent heat exchanger and carry out heat exchange with cold carrying agent, turn back to again after being heated to 0 ℃ by cold carrying agent that heating LNG makes it vaporization and overheated in the multichannel plate and fin type LNG vaporizer, enter again after self cooling to-90 ℃ again in the plate and fin type cold carrying agent heat exchanger and carry out heat exchange with cold carrying agent, turn back to again in the multichannel plate and fin type LNG vaporizer after being heated to 0 ℃ by cold carrying agent and be cooled to-90 ℃ by LNG, enter again afterwards in the plate and fin type cold carrying agent heat exchanger and be heated to 0 ℃ by cold carrying agent, then turn back to again in the multichannel plate and fin type LNG vaporizer and the LNG heat exchange, be cooled to-90 ℃ and laggardly go into plate and fin type cold carrying agent heat exchanger and be heated to 0 ℃, after ambient temperature, enter the engine combustion acting through a segment pipe and the further rewarming of environment heat exchange afterwards by cold carrying agent.Cold carrying agent is gone in the plate and fin type cold carrying agent heat exchanger parallel stream through 9 heat exchanger channels through recycle pump pressurization is laggard,-90 ℃ cryogenic natural gas are heated to 0 ℃, self cool in the air-conditioning air cooler that is admitted to automobile cab after 0 ℃, carry out heat exchange with the air of driving in the space, produce refrigeration effect, and cold carrying agent is flowed out operator cabin afterwards by air heating to 10 ℃, is recycled the pump pressurization again and participates in circulation.
The disclosed a kind of car air conditioner heat-exchanger rig that reclaims cold energy of liquefied natural gas of the utility model, to split into two strands from the LNG that basin comes out, parallel heat exchanger channels by two-layer flexuose fin, and intersected therebetween three stock-traders' know-hows and crossed the overheated rock gas heating vaporization rewarming that backflows for three times, avoided introducing other heat transferring medium, particularly avoided carrying cold working medium and blocked up problem with the ice that the LNG direct heat transfer may run into routine with higher freezing point; Plate and fin type cold carrying agent heat exchanger of the present utility model, the cryogenic natural gas (90 ℃) that will have certain degree of superheat from four strands that multichannel plate and fin type LNG vaporizer comes out is assigned to the heat exchanger channels of 8 layers of flexuose fin, with intersect the cold carrying agent of 9 bursts of PARALLEL FLOW therebetween and carry out heat exchange, make cold carrying agent cool to 0 ℃ by 10 ℃, finish the transmission and the conveying of LNG low temperature cold smoothly, not frozen in order to guarantee cold carrying agent, can select for use freezing point temperature relatively low carry cold working medium, as certain brand engine fluid (freezing point temperature-40 ℃).
The disclosed a kind of car air conditioner heat-exchanger rig that reclaims cold energy of liquefied natural gas of the utility model, can reach 38.8kg/h through measuring LNG evaporating capacity, with the cold carrying agent test of a kind of freezing point temperature-40 ℃, do not have in the heat exchanger and freeze, the LNG evaporating capacity is stable, the car air conditioner cold is in liberal supply.
Above content is to further describing that the utility model is done in conjunction with concrete preferred implementation; can not assert that embodiment of the present utility model only limits to this; for the utility model person of an ordinary skill in the technical field; under the prerequisite that does not break away from the utility model design; can also make some simple deduction or replace, all should be considered as belonging to the utility model and determine scope of patent protection by claims of being submitted to.
Claims (5)
1. car air conditioner heat-exchanger rig that reclaims cold energy of liquefied natural gas, comprise multichannel plate and fin type LNG vaporizer and plate and fin type cold carrying agent heat exchanger, it is characterized in that: corresponding pipeline is connected in series mutually on described multichannel plate and fin type LNG vaporizer and the plate and fin type cold carrying agent heat exchanger;
Described multichannel plate and fin type LNG vaporizer is imported and exported end socket, overheated rock gas import and export end socket and heat exchanging plate Shu Zucheng by the LNG side; Described heat exchanging plate bundle comprises LNG side fin, overheated rock gas side fin, dividing plate, end strip of paper used for sealing and both sides side plate; Form 5 heat exchanger channels between described dividing plate and dividing plate;
Described plate and fin type cold carrying agent heat exchanger comprises that cold carrying agent is imported and exported end socket, rock gas is imported and exported end socket and heat exchanging plate bundle; Cold carrying agent heat exchanging plate bundle is made up of overheated rock gas side fin, cold carrying agent side fin, dividing plate, end strip of paper used for sealing and both sides side plate; 17 passages that form between described dividing plate and the dividing plate.
2. reclaim the car air conditioner heat-exchanger rig of cold energy of liquefied natural gas according to claim 1, it is characterized in that: described LNG side fin is the flexuose plain fin, and flexuose fin wing is high to be that 6.5mm, sawtooth pitch are that 2.1mm, fin thickness are 0.3mm; Described overheated rock gas side flexuose fin height is that 9.5mm, sawtooth pitch are that 1.7mm, fin thickness are 0.2mm; Described block board thickness is 1mm; Described side plate thickness is 12mm.
3. reclaim the car air conditioner heat-exchanger rig of cold energy of liquefied natural gas according to claim 1, it is characterized in that: described LNG side is imported and exported the end socket cavity and is welded with two LNG heat exchanger channels, and on end socket welded joint; Described overheated rock gas side is imported and exported in the end socket cavity and is welded two floors respectively, and the end socket chamber is divided into 3 sections respectively corresponding three overheated heat exchange gas passages, and welds three joints respectively on the end socket chamber.
4. reclaim the car air conditioner heat-exchanger rig of cold energy of liquefied natural gas according to claim 1, it is characterized in that: the high 6.5mm of being of described cold carrying agent side flexuose fin wing, sawtooth pitch are that 2.1mm, fin thickness are 0.3mm; Described overheated rock gas side flexuose fin height is that 9.5mm, sawtooth pitch are that 1.7mm, fin thickness are 0.2mm; Described block board thickness is 1mm; Described side plate thickness is 12mm.
5. reclaim the car air conditioner heat-exchanger rig of cold energy of liquefied natural gas according to claim 1, it is characterized in that: it is semicircle cavity that described rock gas is imported and exported end socket, each cavity two ends is welded with closure plate, and all welding 3 floors in each cavity is 4 little cavitys with the cavity equipartition, all is welded with joint at each little cavity; Described rock gas is imported and exported the end socket cavity and is welded in heat exchanging plate bundle two ends, each little cavity and 2 rock gas channel welds; It is semicircle cavity that described cold carrying agent side is imported and exported end socket, and the cavity two ends are welded with closure plate, and distinguishes welded joint on end socket, and the end socket cavity is welded in heat exchanging plate bundle two ends, makes the cold carrying agent parallel stream cross 9 layers of cold carrying agent side flow heat exchanger channels.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011200240609U CN201982203U (en) | 2011-01-25 | 2011-01-25 | Heat exchange device of automobile air conditioner for recycling cold energy of liquefied natural gas |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011200240609U CN201982203U (en) | 2011-01-25 | 2011-01-25 | Heat exchange device of automobile air conditioner for recycling cold energy of liquefied natural gas |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201982203U true CN201982203U (en) | 2011-09-21 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2011200240609U Expired - Fee Related CN201982203U (en) | 2011-01-25 | 2011-01-25 | Heat exchange device of automobile air conditioner for recycling cold energy of liquefied natural gas |
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| Country | Link |
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| CN (1) | CN201982203U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114658570A (en) * | 2020-12-23 | 2022-06-24 | 西安德森新能源装备有限公司 | Fin type heat exchange vaporization device of vehicle-mounted LNG system |
-
2011
- 2011-01-25 CN CN2011200240609U patent/CN201982203U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114658570A (en) * | 2020-12-23 | 2022-06-24 | 西安德森新能源装备有限公司 | Fin type heat exchange vaporization device of vehicle-mounted LNG system |
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| C14 | Grant of patent or utility model | ||
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| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20110921 Termination date: 20140125 |