CN203719230U - Vehicle LNG (Liquefied Natural Gas) refrigeration capacity recovering system with cold accumulating system - Google Patents
Vehicle LNG (Liquefied Natural Gas) refrigeration capacity recovering system with cold accumulating system Download PDFInfo
- Publication number
- CN203719230U CN203719230U CN201320704202.5U CN201320704202U CN203719230U CN 203719230 U CN203719230 U CN 203719230U CN 201320704202 U CN201320704202 U CN 201320704202U CN 203719230 U CN203719230 U CN 203719230U
- Authority
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- China
- Prior art keywords
- cold
- storage
- heat exchanger
- lng
- coldness
- 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 - Lifetime
Links
- 238000005057 refrigeration Methods 0.000 title abstract description 9
- 239000003949 liquefied natural gas Substances 0.000 title description 50
- 238000011084 recovery Methods 0.000 claims abstract description 28
- 238000009825 accumulation Methods 0.000 claims description 46
- 239000002826 coolant Substances 0.000 abstract 3
- 239000003795 chemical substances by application Substances 0.000 description 43
- VNWKTOKETHGBQD-UHFFFAOYSA-N methane Chemical compound C VNWKTOKETHGBQD-UHFFFAOYSA-N 0.000 description 28
- 239000003345 natural gas Substances 0.000 description 14
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 11
- LYCAIKOWRPUZTN-UHFFFAOYSA-N Ethylene glycol Chemical compound OCCO LYCAIKOWRPUZTN-UHFFFAOYSA-N 0.000 description 5
- -1 alcohol lipid Chemical class 0.000 description 5
- 238000002309 gasification Methods 0.000 description 5
- 150000001298 alcohols Chemical class 0.000 description 4
- 150000002632 lipids Chemical class 0.000 description 4
- 239000006200 vaporizer Substances 0.000 description 4
- UHOVQNZJYSORNB-UHFFFAOYSA-N Benzene Chemical compound C1=CC=CC=C1 UHOVQNZJYSORNB-UHFFFAOYSA-N 0.000 description 3
- LFQSCWFLJHTTHZ-UHFFFAOYSA-N Ethanol Chemical compound CCO LFQSCWFLJHTTHZ-UHFFFAOYSA-N 0.000 description 3
- XEKOWRVHYACXOJ-UHFFFAOYSA-N Ethyl acetate Chemical compound CCOC(C)=O XEKOWRVHYACXOJ-UHFFFAOYSA-N 0.000 description 3
- OKKJLVBELUTLKV-UHFFFAOYSA-N Methanol Chemical compound OC OKKJLVBELUTLKV-UHFFFAOYSA-N 0.000 description 3
- YXFVVABEGXRONW-UHFFFAOYSA-N Toluene Chemical compound CC1=CC=CC=C1 YXFVVABEGXRONW-UHFFFAOYSA-N 0.000 description 3
- 238000004378 air conditioning Methods 0.000 description 3
- 150000004945 aromatic hydrocarbons Chemical class 0.000 description 3
- 238000000034 method Methods 0.000 description 3
- 239000000203 mixture Substances 0.000 description 3
- 230000001105 regulatory effect Effects 0.000 description 3
- 230000009286 beneficial effect Effects 0.000 description 2
- 239000012530 fluid Substances 0.000 description 2
- 239000007788 liquid Substances 0.000 description 2
- BDERNNFJNOPAEC-UHFFFAOYSA-N propan-1-ol Chemical compound CCCO BDERNNFJNOPAEC-UHFFFAOYSA-N 0.000 description 2
- CTQNGGLPUBDAKN-UHFFFAOYSA-N O-Xylene Chemical compound CC1=CC=CC=C1C CTQNGGLPUBDAKN-UHFFFAOYSA-N 0.000 description 1
- 238000010521 absorption reaction Methods 0.000 description 1
- 230000005540 biological transmission Effects 0.000 description 1
- 238000001816 cooling Methods 0.000 description 1
- 239000012809 cooling fluid Substances 0.000 description 1
- 230000006837 decompression Effects 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 230000005496 eutectics Effects 0.000 description 1
- 239000000446 fuel Substances 0.000 description 1
- WGCNASOHLSPBMP-UHFFFAOYSA-N hydroxyacetaldehyde Natural products OCC=O WGCNASOHLSPBMP-UHFFFAOYSA-N 0.000 description 1
- NMJORVOYSJLJGU-UHFFFAOYSA-N methane clathrate Chemical compound C.C.C.C.O.O.O.O.O.O.O.O.O.O.O.O.O.O.O.O.O.O.O.O.O.O.O NMJORVOYSJLJGU-UHFFFAOYSA-N 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 239000005416 organic matter Substances 0.000 description 1
- 238000004064 recycling Methods 0.000 description 1
- 150000003839 salts Chemical class 0.000 description 1
- 239000007787 solid Substances 0.000 description 1
- 239000008096 xylene Substances 0.000 description 1
Classifications
-
- 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
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E60/00—Enabling technologies; Technologies with a potential or indirect contribution to GHG emissions mitigation
- Y02E60/14—Thermal energy storage
Abstract
The utility model discloses a vehicle LNG refrigeration capacity recovering system with a cold accumulating system, and belongs to the field of refrigeration capacity recovery. The vehicle LNG refrigeration capacity recovering system comprises an LNG storage tank, an engine, a heat exchanger, the cold accumulating system, a coolant reservoir and a refrigeration capacity output terminal, wherein the heat exchanger is respectively connected with the LNG storage tank, the engine, the cold accumulating system and the coolant reservoir; the refrigeration capacity output terminal is connected with the coolant reservoir. The vehicle LNG refrigeration capacity recovering system disclosed by the utility model is of strong refrigeration capacity storage and recovery capability, and can meet the working requirement of vehicle cold load for a long time.
Description
Technical field
The utility model relates to auto air-con field, relates in particular to a kind of automobile-used LNG cold recovery system with cold accumulation system.
Background technology
LNG is the english abbreviation of liquefied natural gas (liquefied natural gas).Normally a kind of horizontal LNG tank of LNG storage tank, the low temperature that gaseous natural gas under normal pressure is cooled to-162 ℃ makes gaseous natural gas be converted into LNG, LNG is stored in storage tank and just obtains LNG storage tank, and LNG storage tank is beneficial to storage and the transportation of natural gas.When LNG is converted into normal temperature gaseous natural gas, need to absorb a large amount of heat energy, can think and discharge a large amount of cold energy, automobile is equivalent to the electric energy of 240kWh with the cold energy of LNG storage tank, the having a high potential of recycling.
Existing LNG LNGV air-conditioning refrigeration system, comprise the parts such as LNG fluid reservoir, reducing pressure by regulating flow valve, vaporizer, engine, driver's cabin, and in system, fill automobile cooling as the medium of cold transmission, be by pipeline, reducing pressure by regulating flow valve, to be connected with heat exchanger after LNG fluid reservoir, heat exchanger is connected to engine by pipeline, vaporizer and pressure regulating valve; Heat exchanger is connected with evaporimeter and water pump by pipeline again; Evaporimeter is arranged in driver's cabin; Between heat exchanger exit and the evaporator with temperature controller, be connected with the expansion tank with decompression protection lid.
Above-mentioned prior art is only provided with for adding the expansion tank of cooling fluid, and expansion casing is generally used for absorption system pressure, has hardly cool storage function; In addition, by vaporizer, realize the gasification of a part of liquefied natural gas, can cause the cold of vaporizer gasification part to reclaim, cold utilize degree very limited.
Utility model content
In order to overcome the defect of prior art, technical problem to be solved in the utility model is to propose a kind of automobile-used LNG cold recovery system with cold accumulation system, has stronger cold and stores and recovery ability.
For reaching this object, the utility model by the following technical solutions:
A kind of automobile-used LNG cold recovery system with cold accumulation system that the utility model provides, comprise LNG storage tank, engine, heat-exchanger rig, cold accumulation system, agent for storage of coldness holder and cold outlet terminal, described heat-exchanger rig is connected with LNG storage tank, engine, cold accumulation system and agent for storage of coldness holder respectively, and described cold outlet terminal is connected with described agent for storage of coldness holder.
Be preferably, described heat-exchanger rig comprises the connected heat exchanger successively of two-stage at least, and described LNG storage tank is connected with first order heat exchanger, and described engine is connected with afterbody heat exchanger.
Be preferably, in described heat-exchanger rig, first order heat exchanger is connected with cold accumulation system.
Be preferably, in described heat-exchanger rig, the second level and above heat exchanger are connected with agent for storage of coldness holder.
The described second level and above heat exchanger are connected with same described agent for storage of coldness holder.Be preferably, the described second level and above heat exchanger are corresponding and connected one by one with the described agent for storage of coldness holder (4) of at least one.
Be preferably, described cold accumulation system is connected with agent for storage of coldness holder described at least one.。
Be preferably, a plurality of described cold outlet terminals are connected with same described agent for storage of coldness holder.
Be preferably, described in each, agent for storage of coldness holder all has a described cold outlet terminal corresponding and connected with each other with it.
The beneficial effects of the utility model are:
The utility model is provided with cold accumulation system and agent for storage of coldness holder, in cold accumulation system and agent for storage of coldness holder, there is different cool storage mediums, can reclaim respectively the cold that First Heat Exchanger and the second heat exchanger produce, make the utility model can reclaim the sensible heat of LNG, LNG latent heat be can reclaim again, cold-storage ability of the present utility model and cold recovery ability greatly promoted.
Accompanying drawing explanation
In order to be illustrated more clearly in the utility model embodiment or technical scheme of the prior art, to the accompanying drawing of required use in embodiment or description of the Prior Art be briefly described below, apparently, accompanying drawing in the following describes is only embodiment more of the present utility model, for those of ordinary skills, do not paying under the prerequisite of creative work, can also obtain according to these accompanying drawings other accompanying drawing.
Fig. 1 is the structural representation of the automobile-used LNG cold recovery system with cold accumulation system that provides in embodiment mono-;
Fig. 2 is the structural representation of the automobile-used LNG cold recovery system with cold accumulation system that provides in embodiment bis-;
Fig. 3 is the structural representation of the automobile-used LNG cold recovery system with cold accumulation system that provides in embodiment tri-.
In figure:
1, LNG storage tank; 2, engine; 31, First Heat Exchanger; 32, the second heat exchanger; 4, agent for storage of coldness holder; 5, cold outlet terminal; 6, the first heat-exchanging loop; 7, the second heat-exchanging loop; 8, the 3rd heat-exchanging loop; 9, the 4th heat-exchanging loop; 10, cold accumulation system.
The specific embodiment
Below in conjunction with the accompanying drawing in the utility model embodiment, the technical scheme in the utility model embodiment is clearly and completely described, obviously, described embodiment is only the utility model part embodiment, rather than whole embodiment.Embodiment based in the utility model, those of ordinary skills are not making the every other embodiment obtaining under creative work prerequisite, all belong to the scope of the utility model protection.
Embodiment mono-
As shown in Figure 1, be the structural representation of the automobile-used LNG cold recovery system with cold accumulation system that provides in the present embodiment.
A kind of automobile-used LNG cold recovery system with cold accumulation system is provided in the present embodiment, it comprises LNG storage tank 1, engine 2, heat-exchanger rig, cold accumulation system 10, agent for storage of coldness holder 4 and cold outlet terminal 5, described heat-exchanger rig is connected with LNG storage tank 1, engine 2, cold accumulation system 10 and agent for storage of coldness holder 4 respectively, and described cold outlet terminal 5 is connected with described agent for storage of coldness holder 4.
Described heat-exchanger rig comprises the heat exchanger that at least two-stage connects successively, and described LNG storage tank 1 is connected with first order heat exchanger 31, and described engine 2 is connected with afterbody heat exchanger 32.In described heat-exchanger rig, first order heat exchanger 31 is connected with cold accumulation system 10, and the second level and above heat exchanger are connected with agent for storage of coldness holder 4.Its connected mode is generally following two kinds:
Mode one: the second level and above heat exchanger are connected with same described agent for storage of coldness holder 4.
Mode two: the second level and the above heat exchanger are corresponding and connected one by one with the described agent for storage of coldness holder 4 of at least one, that is to say, described in each, all corresponding described agent for storage of coldness holder 4 of heat exchanger is attached thereto.
Described cold accumulation system 10 is connected with agent for storage of coldness holder 4 described at least one.
Described cold outlet terminal 5 can be one or more, and the connected mode of itself and described agent for storage of coldness holder 4 has two kinds:
Mode one: a plurality of described cold outlet terminals are connected with same described agent for storage of coldness holder 4, described agent for storage of coldness holder 4 provides cold energy for described cold outlet terminal.
Mode two: described in each, agent for storage of coldness holder 4 all has a described cold outlet terminal corresponding and connected with each other with it, and described in each in a plurality of described agent for storage of coldness holders 4, agent for storage of coldness holder 4 all has a described cold outlet terminal to be attached thereto.
Preferably, described heat-exchanger rig is comprised of two to three grades of heat exchangers, and in the present embodiment, described heat-exchanger rig is comprised of two-stage heat exchanger.Be that First Heat Exchanger 31 and the second heat exchanger are also that afterbody heat exchanger 32 forms, described First Heat Exchanger 31 is connected with cold accumulation system 10 by the first heat-exchanging loop 6, and described the second heat exchanger 32 is connected with agent for storage of coldness holder 4 by the second heat-exchanging loop 7.
Described cold accumulation system 10 is for reclaiming the latent heat of LNG gasification, and described agent for storage of coldness holder 4 is for reclaiming the sensible heat of cryogenic gaseous natural gas; Described cold accumulation system 10 and described agent for storage of coldness holder 4 exist, and a large amount of colds in LNG are stored, and greatly improve cold-storage ability and the cold recovery ability of automobile-used LNG cold recovery motorcar air conditioner.Described cold accumulation system 10 is that with agent for storage of coldness holder 4 the two main distinction cool storage medium is different with mode.
Described LNG storage tank 1 is connected with described First Heat Exchanger 31, described the second heat exchanger 32 and described engine 2 successively, the LNG flowing out from described LNG storage tank 1 flow through successively described First Heat Exchanger 31 and described the second heat exchanger 32, finally flow into described engine 2 burnings, for automobile provides power.
Described cold accumulation system 10 is connected with described agent for storage of coldness holder 4 by the 3rd heat-exchanging loop 8, and this connected mode can strengthen the flexibility that cold flows to rotation, can improve controllability of the present utility model, stability and reliability again.Described cold outlet terminal 5 is connected with described agent for storage of coldness holder 4 by the 4th heat-exchanging loop 9, and cold outlet terminal 5 can be air conditioning for automobiles or cold storage plant.
Described engine 2 is connected with engine water cooler, and the second heat exchanger 32 is connected with described engine water cooler by pipeline.The low pressure gaseous state natural gas flow being flowed out by the second heat exchanger 32, through described engine water cooler, becomes normal temperature gaseous natural gas with described engine water cooler generation heat exchange, and normal-temperature natural-gas flows into described engine 2 burnings, for automobile provides power.
Cool storage medium in described cold accumulation system 10 is a kind of in water, ice, mixture of ice and water, eutectic salts or gas hydrate, and described ice is solid-state water or the solid mixt of organic matter and water.Agent for storage of coldness in described agent for storage of coldness holder 4 is one or more in arene, alcohols, lipid, alcohol lipid, or the mixture of one or more and water in arene, alcohols, lipid, alcohol lipid, wherein, arene can be benzene,toluene,xylene etc., alcohols, lipid, alcohol lipid can be methyl alcohol, ethanol, ethylene glycol, propyl alcohol, ethyl acetate etc., and described alcohol lipid refers to the mixture of alcohols and lipid.
Described First Heat Exchanger 31 and described the second heat exchanger 32 are a kind of in plate-fin heat exchanger, tube-sheet heat exchanger, volumetric heat exchanger, tubular heat exchanger, plate type heat exchanger, shell-and-tube heat exchanger and double pipe heat exchanger.
During concrete use, store temperature and be about-162 ℃ in LNG storage tank 1, pressure is about the LNG of 1.4Mpa.
First, in this step, preferably First Heat Exchanger 31 is tube-sheet heat exchanger, the LNG flowing out from LNG storage tank 1 enters in First Heat Exchanger 31, there is heat exchange with First Heat Exchanger 31 and realize preliminary gasification, become gas-liquid mixed state natural gas, the temperature of the gas-liquid mixed state natural gas in First Heat Exchanger 31 exits is-83 ℃.
Meanwhile, the latent heat producing in gasification carries out heat exchange by the first heat-exchanging loop 6 with cold accumulation system 10, and the cold in heat transfer process is stored in cold accumulation system 10.Cool storage medium in this step in cold accumulation system 10 is preferably the ice that 50% glycol water forms at low temperatures.
Then, in this step, preferably the second heat exchanger 32 is volumetric heat exchanger, through the preliminary natural gas gasifying, flows in the second heat exchanger 32, becomes cryogenic natural gas with the further heat exchange of the second heat exchanger 32, the temperature of the cryogenic natural gas in the second heat exchanger 32 exits is 5 ℃, air pressure 0.6Mpa.
Meanwhile, the sensible heat further producing in heat transfer process carries out heat exchange by the second heat-exchanging loop 7 with agent for storage of coldness holder 4, and the cold in heat transfer process is stored in agent for storage of coldness holder 4.
Finally, the fuel inflow engine 2 of the natural gas flowing out from the second heat exchanger 32 as engine 2.
In addition, can be according to user's needs, cold outlet terminal 5 carries out exchange heat by the 4th heat-exchanging loop 9 and agent for storage of coldness holder 4, for air conditioning for automobiles or cold storage plant provide cold.
The automobile-used LNG cold recovery system with cold accumulation system providing in the present embodiment is provided with cold accumulation system 10 and agent for storage of coldness holder 4, in cold accumulation system 10 and agent for storage of coldness holder 4, there is different cool storage mediums, can reclaim respectively the cold that First Heat Exchanger 31 and the second heat exchanger 32 produce, make automobile-used LNG cold recovery system can reclaim the sensible heat of LNG, can reclaim LNG latent heat again, greatly promote cold-storage ability and the cold recovery ability of automobile-used LNG cold recovery system.
Fig. 2, Fig. 3 are respectively the schematic diagram of embodiment bis-and embodiment tri-, are with the difference of the corresponding embodiment mono-of earlier figures 1: in embodiment bis-, heat-exchanger rig comprises 3 grades of heat exchangers, and the second level is connected with same agent for storage of coldness holder 4 with third level heat exchanger; In embodiment tri-, heat-exchanger rig comprises 3 grades of heat exchangers, the second level and third level heat exchanger respectively from different agent for storage of coldness holder 41,42 are connected, and cold accumulation system 10 is connected with agent for storage of coldness holder 41,42 respectively, two cold outlet terminals 51,52 are connected respectively with described agent for storage of coldness holder 41,42.
Below only with embodiment, the utility model is illustrated, but the utility model is not limited to above-mentioned size and outward appearance illustration, more should not form any restriction of the present utility model.As long as within any improvement that the utility model is done or modification all belong to the protection domain of the utility model claim opinion.
Claims (9)
1. an automobile-used LNG cold recovery system with cold accumulation system, it is characterized in that: comprise LNG storage tank (1), engine (2), heat-exchanger rig, cold accumulation system (10), agent for storage of coldness holder (4) and cold outlet terminal (5), described heat-exchanger rig is connected with LNG storage tank (1), engine (2), cold accumulation system (10) and agent for storage of coldness holder (4) respectively, and described cold outlet terminal (5) is connected with described agent for storage of coldness holder (4).
2. the automobile-used LNG cold recovery system with cold accumulation system according to claim 1, is characterized in that:
Described heat-exchanger rig comprises the connected heat exchanger successively of two-stage at least, and described LNG storage tank (1) is connected with first order heat exchanger (31), and described engine (2) is connected with afterbody heat exchanger (32).
3. the automobile-used LNG cold recovery system with cold accumulation system according to claim 2, is characterized in that:
In described heat-exchanger rig, first order heat exchanger (31) is connected with cold accumulation system (10).
4. the automobile-used LNG cold recovery system with cold accumulation system according to claim 2, is characterized in that:
In described heat-exchanger rig, the second level and above heat exchanger are connected with agent for storage of coldness holder (4).
5. the automobile-used LNG cold recovery system with cold accumulation system according to claim 4, is characterized in that:
The described second level and above heat exchanger are connected with same described agent for storage of coldness holder (4).
6. the automobile-used LNG cold recovery system with cold accumulation system according to claim 4, is characterized in that:
The described second level and above heat exchanger are corresponding and connected one by one with the described agent for storage of coldness holder (4) of at least one.
7. the automobile-used LNG cold recovery system with cold accumulation system according to claim 1, is characterized in that:
Described cold accumulation system (10) is connected with agent for storage of coldness holder (4) described at least one.
8. the automobile-used LNG cold recovery system with cold accumulation system according to claim 1, is characterized in that:
A plurality of described cold outlet terminals are connected with same described agent for storage of coldness holder (4).
9. the automobile-used LNG cold recovery system with cold accumulation system according to claim 1, is characterized in that:
Described in each, agent for storage of coldness holder (4) all has a described cold outlet terminal corresponding and connected with each other with it.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320704202.5U CN203719230U (en) | 2013-11-08 | 2013-11-08 | Vehicle LNG (Liquefied Natural Gas) refrigeration capacity recovering system with cold accumulating system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320704202.5U CN203719230U (en) | 2013-11-08 | 2013-11-08 | Vehicle LNG (Liquefied Natural Gas) refrigeration capacity recovering system with cold accumulating system |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203719230U true CN203719230U (en) | 2014-07-16 |
Family
ID=51158377
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201320704202.5U Expired - Lifetime CN203719230U (en) | 2013-11-08 | 2013-11-08 | Vehicle LNG (Liquefied Natural Gas) refrigeration capacity recovering system with cold accumulating system |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203719230U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104712905A (en) * | 2015-04-10 | 2015-06-17 | 武汉金惠科技有限公司 | LNG (liquefied natural gas) cold energy release and gas supply system for powered fishing craft |
| CN106907946A (en) * | 2017-03-06 | 2017-06-30 | 常州大学 | A kind of new LNG cold energy recycles method and device |
-
2013
- 2013-11-08 CN CN201320704202.5U patent/CN203719230U/en not_active Expired - Lifetime
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104712905A (en) * | 2015-04-10 | 2015-06-17 | 武汉金惠科技有限公司 | LNG (liquefied natural gas) cold energy release and gas supply system for powered fishing craft |
| CN106907946A (en) * | 2017-03-06 | 2017-06-30 | 常州大学 | A kind of new LNG cold energy recycles method and device |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| ASS | Succession or assignment of patent right |
Owner name: XIN'AO (CHINA) GAS INVESTMENT CO., LTD. Free format text: FORMER OWNER: XINAO SCIENCE AND TECHNOLOGY DEVELOPMENT CO., LTD. Effective date: 20141203 |
|
| C41 | Transfer of patent application or patent right or utility model | ||
| COR | Change of bibliographic data |
Free format text: CORRECT: ADDRESS; FROM: 065001 LANGFANG, HEBEI PROVINCE TO: 100000 XICHENG, BEIJING |
|
| TR01 | Transfer of patent right |
Effective date of registration: 20141203 Address after: 100000 Xicheng District, Beijing, Jin Fang street, No. 26, the office of the Austrian Olympic Center C block 501-2 Patentee after: ENN (CHINA) GAS INVESTMENT Co.,Ltd. Address before: The 065001 Hebei economic and Technological Development Zone of Langfang Huaxiang new Austrian Science and Technology Park in the Southern District of B City Patentee before: ENN SCIENCE & TECHNOLOGY DEVELOPMENT Co.,Ltd. |
|
| CX01 | Expiry of patent term |
Granted publication date: 20140716 |
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| CX01 | Expiry of patent term |