CN201935601U - Single row heat exchanger with variable pipe diameters - Google Patents
Single row heat exchanger with variable pipe diameters Download PDFInfo
- Publication number
- CN201935601U CN201935601U CN2011200118486U CN201120011848U CN201935601U CN 201935601 U CN201935601 U CN 201935601U CN 2011200118486 U CN2011200118486 U CN 2011200118486U CN 201120011848 U CN201120011848 U CN 201120011848U CN 201935601 U CN201935601 U CN 201935601U
- Authority
- CN
- China
- Prior art keywords
- heat exchanger
- type heat
- caliber
- exchanger tube
- tube
- 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
Images
Landscapes
- Heat-Exchange Devices With Radiators And Conduit Assemblies (AREA)
Abstract
A single row heat exchanger with variable pipe diameters comprises a left tube sheet, a right tube sheet, a fin, U-shaped heat exchange tubes, an elbow and a connecting pipe. The U-shaped heat exchange tubes penetrate through preset holes on the left tube sheet, the fin and the right tube sheet to be connected in expanded joint mode and fixed with the left tube sheet, the fin and the right tube sheet. The U-shaped heat exchange tubes have more than two pipe diameters and are arranged in a single row or locally arranged in double rows. The fin is integrated in a single row, and the preset holes on the fin has more than two hole diameters. The U-shaped heat exchange tubes are arranged in sections, the pipe diameters of the U-shaped heat exchange tubes in the range of a same section are identical, and the number of the U-shaped heat exchange tubes in the range of a same section is from 2 to 18. The layout of the U-shaped heat exchange tubes with big pipe diameters is in a single row, and the layout of the U-shaped heat exchange tubes with medium or small pipe diameters is in a single row or in double rows. The single row heat exchanger is characterized by simple and reasonable structure, small size, flexibility of operation, low manufacture cost, high heat exchange efficiency and wide application range.
Description
Technical field
The utility model relates to a kind of heat exchanger, particularly a kind of single change caliber heat exchanger.
Background technology
Finned type heat exchanger in the operation of air conditioning systems adopts the heat exchanger tube with caliber substantially at present, but along with technical development, the heat exchange efficiency of the heat exchanger of the caliber of discovery change both at home and abroad is better, change the speed of fluid in heat exchanger tube because the caliber by heat exchanger tube changes, thereby make heat exchange more reasonable, more abundant.Begun to adopt the heat exchanger that becomes caliber abroad.
Chinese patent literature CN201621988U discloses a kind of reducing expand tube heat exchanger on November 03rd, 2010, comprise radiating fin, left side tube sheet, the right tube sheet, U type copper pipe and eyesight elbow pipe, default hole and radiating fin, left side tube sheet and the right tube plate expanded-connecting that U type copper pipe passes on radiating fin, left side tube sheet and the right tube sheet are fixed together, and U type copper pipe is the U type copper pipe that caliber more than two kinds is arranged.Because being the heat exchanger tube with different tube diameters, this reducing expand tube heat exchanger is through on separately the fin, several rows of again and be unified into an integrated heat exchanger, therefore, this reducing expand tube heat exchanger has the above heat exchanger tube of two rows at least, and can only intert a kind of heat exchanger tube of specification on each sheet fin, so this reducing expand tube heat exchanger has the following disadvantages: row's number of heat exchanger tube is too much, because stopping of heat exchanger tube, leeward side at heat exchanger, the zone that wind can't pass through, just the tail zone is bigger, and windage increases, and is positioned at the heat exchange deleterious of the heat exchanger tube of row and leeward side.
The utility model content
The purpose of this utility model aim to provide a kind of simple and reasonable, volume is little, flexible operation, cost of manufacture is low, heat exchanger effectiveness is high, applied widely single change caliber heat exchanger, to overcome weak point of the prior art.
A kind of single change caliber heat exchanger by this purpose design, comprise left side tube sheet, the right tube sheet, fin, U type heat exchanger tube and elbow and tube connector, U type heat exchanger tube passes default Kong Houyu left side tube sheet, fin and the right tube plate expanded-connecting on left side tube sheet, fin and the right tube sheet and is fixed together, its architectural feature is that the caliber of U type heat exchanger tube is more than two kinds, U type heat exchanger tube is single layout or local double layout, fin is single monoblock type, and the aperture in the default hole on the fin is more than two kinds.
The structure of described fin can be plain film formula, venetian blind type or ripple chip, and the pitch of fins of fin is 1.0mm～2.0mm, and the sheet of fin is wide to be 10mm～30mm, and the pitch of holes in the default hole on the fin is 8mm～30mm.
Described U type heat exchanger tube segmentation arranges that the caliber of the U type heat exchanger tube in every segment limit is identical, and the number of the U type heat exchanger tube in every segment limit is 2～18.
Described U type heat exchanger tube is light pipe or riffled tube, and the cross section of this U type heat exchanger tube is circular or oval.
Described U type heat exchanger tube comprises big caliber U type heat exchanger tube, middle caliber U type heat exchanger tube and tubule footpath U type heat exchanger tube, wherein, the caliber scope of big caliber U type heat exchanger tube is φ 10～φ 7.5, the caliber scope of middle caliber U type heat exchanger tube is φ 7.5～φ 6.5, and the caliber scope of tubule footpath U type heat exchanger tube is φ 6.5～φ 4.
Described big caliber U type heat exchanger tube is single layout, and middle caliber U type heat exchanger tube or tubule footpath U type heat exchanger tube are single or double layout.
Described big caliber U type heat exchanger tube is arranged on the top of heat exchanger, and middle caliber U type heat exchanger tube or tubule footpath U type heat exchanger tube are arranged on the bottom of heat exchanger.
Refrigerant in the described big caliber U type heat exchanger tube is a gaseous coolant, and the refrigerant in middle caliber U type heat exchanger tube and the tubule footpath U type heat exchanger tube is gaseous coolant, gas-liquid two-phase refrigerant or the liquid refrigerants through supercooling.
Centre-to-centre spacing between described big caliber U type heat exchanger tube, middle caliber U type heat exchanger tube and the tubule footpath U type heat exchanger tube equates.
Centre-to-centre spacing between described big caliber U type heat exchanger tube, middle caliber U type heat exchanger tube and the tubule footpath U type heat exchanger tube is unequal.
U type heat exchanger tube in the utility model is single layout or local double layout, so windage is little, fin is single monoblock type, the aperture in the default hole on the fin is more than two kinds, thereby have diversity and a flexibility, can carry out type selecting and collocation according to actual conditions, the cross section of U type heat exchanger tube is circular or oval, has bigger range of choice, and have higher heat exchange efficiency, not only can realize the miniaturization of whole heat exchanger, effectively save national energy and resource, and can effectively reduce the cost of finished product, improve the finished product competitiveness.
The utility model is in less caliber section, the tail zone of leeward side is less, the fin heat exchange is strengthened, owing to changing, caliber cause rate of flow of fluid to change simultaneously, also can strengthen the heat exchange efficiency in the U type heat exchanger tube, therefore, whole heat exchanger has higher heat exchange efficiency, and is special more outstanding under the double stringing situation of the U of little caliber type heat exchanger tube.
The utlity model has simple and reasonable, volume is little, flexible operation, cost of manufacture is low, heat exchanger effectiveness is high, advantage of wide range of application.
Description of drawings
Fig. 1 is the left side structural representation of the utility model first embodiment.
Fig. 2 is the right side structural representation of first embodiment.
Fig. 3 is the left side structural representation of the utility model second embodiment.
Fig. 4 is the right side structural representation of second embodiment.
Fig. 5 is the single layout of U type heat exchanger tube of three kinds of calibers and centre-to-centre spacing when equating, the structural representation of fin.
Fig. 6 is the centre-to-centre spacing of the U type heat exchanger tube of the tubule footpath U double layout of type heat exchanger tube and three kinds of calibers when equating, the structural representation of fin.
Fig. 7 is the single layout of U type heat exchanger tube of three kinds of calibers and centre-to-centre spacing when unequal, the structural representation of fin.
Fig. 8 is the centre-to-centre spacing of U type heat exchanger tube of the tubule footpath U double layout of type heat exchanger tube and three kinds of calibers when unequal, the structural representation of fin.
Among the figure: 1 is left side tube sheet, and 2 is the right tube sheet, and 3 is fin, and 4 is U type heat exchanger tube, 41 is big caliber U type heat exchanger tube, and 42 is middle caliber U type heat exchanger tube, and 43 is tubule footpath U type heat exchanger tube, 5 is elbow, and 6 is tube connector, and A, B are the different centre-to-centre spacing of U type heat exchanger tube with C.
The specific embodiment
Below in conjunction with drawings and Examples the utility model is further described.
First embodiment
Referring to Fig. 1-Fig. 2, this single change caliber heat exchanger, comprise left side tube sheet 1, the right tube sheet 2, fin 3, U type heat exchanger tube 4 and elbow 5 and tube connector 6, U type heat exchanger tube 4 passes default Kong Houyu left side tube sheet 1, fin 3 and the right tube sheet 2 expanded joints on left side tube sheet 1, fin 3 and the right tube sheet 2 and is fixed together, and is welded into a complete heat exchanger by elbow 5 and tube connector 6 again.Wherein, fin can adopt aluminium foil, and this aluminium foil can be normal aluminium foil, also can be hydrophilic aluminium foil, and U type heat exchanger tube 4 can adopt copper pipe, also can adopt aluminum pipe.
The caliber of U type heat exchanger tube 4 is more than two kinds, and U type heat exchanger tube 4 is single layout or local double layout, and fin 3 is single monoblock type, and the aperture in the default hole on the fin 3 is more than two kinds.
The structure of fin 3 can be plain film formula, venetian blind type or ripple chip, and the pitch of fins of fin 3 is 1.0mm～2.0mm, and the sheet of fin 3 is wide to be 10mm～30mm, and the pitch of holes in the default hole on the fin 3 is 8mm～30mm.
4 segmentations of U type heat exchanger tube arrange that the caliber of the U type heat exchanger tube 4 in every segment limit is identical, and the number of the U type heat exchanger tube 4 in every segment limit is 2～18.U type heat exchanger tube 4 is light pipe or riffled tube, and the cross section of this U type heat exchanger tube 4 is circular or oval.
U type heat exchanger tube 4 comprises big caliber U type heat exchanger tube 41, middle caliber U type heat exchanger tube 42 and tubule footpath U type heat exchanger tube 43, wherein, the caliber scope of big caliber U type heat exchanger tube 41 is φ 10～φ 7.5, the caliber scope of middle caliber U type heat exchanger tube 42 is φ 7.5～φ 6.5, and the caliber scope of tubule footpath U type heat exchanger tube 43 is φ 6.5～φ 4.
Big caliber U type heat exchanger tube 41 is single layout, and middle caliber U type heat exchanger tube 42 or tubule footpath U type heat exchanger tube 43 are single or double layout.Big caliber U type heat exchanger tube 41 is arranged on the top of heat exchanger, and middle caliber U type heat exchanger tube 42 or tubule footpath U type heat exchanger tube 43 are arranged on the bottom of heat exchanger.Refrigerant in the big caliber U type heat exchanger tube 41 is a gaseous coolant, and the refrigerant in middle caliber U type heat exchanger tube 42 and the tubule footpath U type heat exchanger tube 43 is gaseous coolant, gas-liquid two-phase refrigerant or the liquid refrigerants through supercooling.
Centre-to-centre spacing between big caliber U type heat exchanger tube 41, middle caliber U type heat exchanger tube 42 and the tubule footpath U type heat exchanger tube 43 equates.Perhaps, the centre-to-centre spacing between big caliber U type heat exchanger tube 41, middle caliber U type heat exchanger tube 42 and the tubule footpath U type heat exchanger tube 43 is unequal.
The centre-to-centre spacing of big caliber U type heat exchanger tube 41 is A, and the centre-to-centre spacing of middle caliber U type heat exchanger tube 42 is B, and tubule footpath U type heat exchanger tube 43 centre-to-centre spacing are C, wherein, 28 〉=A 〉=B 〉=C 〉=11, promptly the U type heat exchanger tube of different size centre-to-centre spacing such as can be and also can be and do not wait centre-to-centre spacing.
In the present embodiment, single change caliber heat exchanger mainly comprises the U type heat exchanger tube 4 of two kinds of different size calibers, and the centre-to-centre spacing of these two kinds of U type heat exchanger tubes 4 is respectively A and B, and single stringing.
When A=B, for etc. the single change caliber heat exchanger of centre-to-centre spacing; When A ≠ B, for not waiting single change caliber heat exchanger of centre-to-centre spacing.
The stream of the single change caliber heat exchanger in these two kinds of schemes can be used conventional two and advance one and go out, above one tunnel gaseous coolant earlier through two big caliber U type heat exchanger tubes, again through three tubule footpath U type heat exchanger tubes, below one tunnel gaseous coolant also earlier through two big caliber U type heat exchanger tubes, again through two tubules footpath U type heat exchanger tubes, continue again after the refrigerants of cooling gather along separate routes through two through two tubules footpath U type heat exchanger tubes under.
Second embodiment
Referring to Fig. 3-Fig. 4, in the present embodiment, single change caliber heat exchanger mainly comprises two kinds of different size caliber U type heat exchanger tubes 4, and the centre-to-centre spacing of these two kinds of U type heat exchanger tubes 4 is respectively A and B, and big caliber U type heat exchanger tube is single stringing, and tubule footpath U type heat exchanger tube is double stringing.
When A=B, for etc. the single change caliber heat exchanger of centre-to-centre spacing; When A ≠ B, for not waiting single change caliber heat exchanger of centre-to-centre spacing.
The stream of the single change caliber heat exchanger in these two kinds of schemes can be used conventional two and advance one and go out, above one tunnel gaseous coolant earlier through two big caliber U type heat exchanger tubes, again through four tubule footpath U type heat exchanger tubes, below one tunnel gaseous coolant also earlier through two big caliber U type heat exchanger tubes, again through three tubules footpath U type heat exchanger tubes, continue again after the refrigerants of cooling gather along separate routes through two through four tubules footpath U type heat exchanger tubes under.
All the other are not stated part and see first embodiment, no longer repeat.
The 3rd embodiment
In the present embodiment, single change caliber heat exchanger mainly comprises three kinds of different size caliber U type heat exchanger tubes 4, and the centre-to-centre spacing of these three kinds of U type heat exchanger tubes 4 is respectively A, B and C, and single stringing.
When A=B=C, for etc. the single change caliber heat exchanger of centre-to-centre spacing, the structure of fin 3 is seen shown in Figure 5; When A ≠ B=C, A=B ≠ C or A ≠ B ≠ C, for not waiting single change caliber heat exchanger of centre-to-centre spacing, the structure of fin 3 is seen shown in Figure 6.
The stream of the single change caliber heat exchanger in these four kinds of schemes can be two and advances one and go out, and also can be two and advances the scene 2 stream, and concrete stream is arranged and decided according to real application systems.
All the other are not stated part and see first embodiment, no longer repeat.
The 4th embodiment
In the present embodiment, single change caliber heat exchanger mainly comprises three kinds of different size caliber U type heat exchanger tubes, these three kinds of U type heat exchanger tube centre-to-centre spacing are respectively A, B and C, and big caliber U type heat exchanger tube 41 and middle caliber U type heat exchanger tube 42 single stringings, tubule footpath U type heat exchanger tube 43 double stringings.
When A=B=C, for etc. the single change caliber heat exchanger of centre-to-centre spacing, the structure of fin 3 is seen shown in Figure 7; When A ≠ B=C, A=B ≠ C or A ≠ B ≠ C, for not waiting single change caliber heat exchanger of centre-to-centre spacing, the structure of fin 3 is seen shown in Figure 8.
The stream of the single change caliber heat exchanger in these four kinds of schemes can be two and advances one and go out, and also can be two and advances the scene 2 stream, and concrete stream is arranged and decided according to real application systems.
All the other are not stated part and see first embodiment, no longer repeat.
Claims (10)
1. single change caliber heat exchanger, comprise left side tube sheet (1), the right tube sheet (2), fin (3), U type heat exchanger tube (4) and elbow (5) and tube connector (6), U type heat exchanger tube (4) passes left side tube sheet (1), default Kong Houyu left side tube sheet (1) on fin (3) and the right tube sheet (2), fin (3) and the right tube sheet (2) expanded joint also are fixed together, the caliber that it is characterized in that U type heat exchanger tube (4) is more than two kinds, U type heat exchanger tube (4) is single layout or local double layout, fin (3) is single monoblock type, and the aperture in the default hole on the fin (3) is more than two kinds.
2. single change caliber heat exchanger according to claim 1, the structure that it is characterized in that described fin (3) can be plain film formula, venetian blind type or ripple chip, the pitch of fins of fin (3) is 1.0mm～2.0mm, the sheet of fin (3) is wide to be 10mm～30mm, and the pitch of holes in the default hole on the fin (3) is 8mm～30mm.
3. single change caliber heat exchanger according to claim 2 is characterized in that described U type heat exchanger tube (4) segmentation layout, and the caliber of the U type heat exchanger tube (4) in every segment limit is identical, and the number of the U type heat exchanger tube (4) in every segment limit is 2～18.
4. single change caliber heat exchanger according to claim 3 is characterized in that described U type heat exchanger tube (4) is light pipe or riffled tube, and the cross section of this U type heat exchanger tube (4) is circular or oval.
5. single change caliber heat exchanger according to claim 4, it is characterized in that described U type heat exchanger tube (4) comprises big caliber U type heat exchanger tube (41), middle caliber U type heat exchanger tube (42) and tubule footpath U type heat exchanger tube (43), wherein, the caliber scope of big caliber U type heat exchanger tube (41) is φ 10～φ 7.5, the caliber scope of middle caliber U type heat exchanger tube (42) is φ 7.5～φ 6.5, and the caliber scope of tubule footpath U type heat exchanger tube (43) is φ 6.5～φ 4.
6. single change caliber heat exchanger according to claim 5 is characterized in that described big caliber U type heat exchanger tube (41) is single layout, and middle caliber U type heat exchanger tube (42) or tubule footpath U type heat exchanger tube (43) are single or double layout.
7. single change caliber heat exchanger according to claim 6 is characterized in that described big caliber U type heat exchanger tube (41) is arranged on the top of heat exchanger, and middle caliber U type heat exchanger tube (42) or tubule footpath U type heat exchanger tube (43) are arranged on the bottom of heat exchanger.
8. single change caliber heat exchanger according to claim 7, it is characterized in that the refrigerant in the described big caliber U type heat exchanger tube (41) is a gaseous coolant, the refrigerant in middle caliber U type heat exchanger tube (42) and the tubule footpath U type heat exchanger tube (43) is gaseous coolant, gas-liquid two-phase refrigerant or the liquid refrigerants through supercooling.
9. according to the arbitrary described single change caliber heat exchanger of claim 5 to 8, it is characterized in that the centre-to-centre spacing between described big caliber U type heat exchanger tube (41), middle caliber U type heat exchanger tube (42) and the tubule footpath U type heat exchanger tube (43) equates.
10. according to the arbitrary described single change caliber heat exchanger of claim 5 to 8, it is characterized in that the centre-to-centre spacing between described big caliber U type heat exchanger tube (41), middle caliber U type heat exchanger tube (42) and the tubule footpath U type heat exchanger tube (43) is unequal.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011200118486U CN201935601U (en) | 2011-01-14 | 2011-01-14 | Single row heat exchanger with variable pipe diameters |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011200118486U CN201935601U (en) | 2011-01-14 | 2011-01-14 | Single row heat exchanger with variable pipe diameters |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201935601U true CN201935601U (en) | 2011-08-17 |
Family
ID=44447119
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2011200118486U Expired - Lifetime CN201935601U (en) | 2011-01-14 | 2011-01-14 | Single row heat exchanger with variable pipe diameters |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201935601U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103727829A (en) * | 2012-10-15 | 2014-04-16 | 海尔集团公司 | Tubing structure of condenser and condenser |
| CN106871664A (en) * | 2017-01-09 | 2017-06-20 | 青岛海尔空调电子有限公司 | A kind of heat exchanger, air-conditioning and design of heat exchanger method |
| CN114278998A (en) * | 2021-02-07 | 2022-04-05 | 山东烯泰天工节能科技有限公司 | Heat exchanger for microtube air conditioner and air conditioner outdoor unit using same |
-
2011
- 2011-01-14 CN CN2011200118486U patent/CN201935601U/en not_active Expired - Lifetime
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103727829A (en) * | 2012-10-15 | 2014-04-16 | 海尔集团公司 | Tubing structure of condenser and condenser |
| CN103727829B (en) * | 2012-10-15 | 2016-01-27 | 海尔集团公司 | The matched tube structure of condenser and condenser |
| CN106871664A (en) * | 2017-01-09 | 2017-06-20 | 青岛海尔空调电子有限公司 | A kind of heat exchanger, air-conditioning and design of heat exchanger method |
| CN114278998A (en) * | 2021-02-07 | 2022-04-05 | 山东烯泰天工节能科技有限公司 | Heat exchanger for microtube air conditioner and air conditioner outdoor unit using same |
| CN114278998B (en) * | 2021-02-07 | 2023-11-17 | 山东烯泰天工节能科技有限公司 | Heat exchanger for micro-pipe air conditioner and air conditioner outdoor unit using same |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN101818999B (en) | Pulsating heat pipe heat-transfer device for low grade heat energy utilization | |
| CN102116584A (en) | Single-row variable pipe diameter heat exchanger | |
| CN103940281A (en) | Novel heat exchanger and manufacturing method thereof | |
| CN104089517B (en) | Fin and the heat exchanger with this fin for heat exchanger | |
| CN201059904Y (en) | Asymmetric slit finned tube heat exchanger | |
| CN201935601U (en) | Single row heat exchanger with variable pipe diameters | |
| CN201028900Y (en) | Novel flat flowing condenser | |
| CN203249530U (en) | Microchannel flat tube and heat exchanger with same | |
| CN101498562A (en) | Pipe fin type heat exchanger | |
| CN201382710Y (en) | Finned-pipe heat exchanger | |
| CN202254497U (en) | Heat exchanger | |
| CN201277832Y (en) | Asymmetrical fins for reinforced heat transferring | |
| CN106382831A (en) | Water cooled type parallel flow heat exchanger | |
| CN201724474U (en) | Heat exchanger of air conditioner | |
| CN203964745U (en) | For the fin and the heat exchanger with this fin of heat exchanger | |
| CN210051023U (en) | Heat exchanger and air conditioner | |
| CN103673258B (en) | Heat exchanger and wall-mounted type air conditioner | |
| CN203274549U (en) | Oval pipe fin type heat exchanger and air conditioner outdoor unit with air outlet at top | |
| CN101984310A (en) | Parallel flow evaporator | |
| CN201715782U (en) | Channel variable liquid-gas separation type heat exchanger | |
| CN215598171U (en) | Novel flow path structure of finned heat exchanger | |
| CN205718629U (en) | One enters to have more ring pipe belt aluminium flat conduit more | |
| CN205678944U (en) | A kind of evaporimeter for motorbus air-conditioning | |
| CN206146246U (en) | Discharge series connection through connections's heat exchanger | |
| CN104964585A (en) | Heat exchanger, alternating flow system and machining method of heat exchanger |
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: GUANGZHOU HUALING REFRIGERATION EQUIPMENT CO., LTD Free format text: FORMER OWNER: HUALING AIR-CONDITIONING EQUIPMENTS CO., LTD., GUANGZHOU Effective date: 20131011 |
|
| C41 | Transfer of patent application or patent right or utility model | ||
| COR | Change of bibliographic data |
Free format text: CORRECT: ADDRESS; FROM: 511400 GUANGZHOU, GUANGDONG PROVINCE TO: 511462 GUANGZHOU, GUANGDONG PROVINCE |
|
| TR01 | Transfer of patent right |
Effective date of registration: 20131011 Address after: 511462 Guangzhou, Nansha District Pearl River Street, Pearl River Industrial Park, virtue Road, No. 6, No. Patentee after: Guangzhou Hualing Refrigeration Equipment Co.,Ltd. Address before: 511400 Village Road, 105 National Road, Dashi street, Guangzhou, Guangdong, Panyu District Patentee before: Hualing Air-Conditioning Equipments Co., Ltd., Guangzhou |
|
| CX01 | Expiry of patent term | ||
| CX01 | Expiry of patent term |
Granted publication date: 20110817 |