CN102401512A - Parallel flow heat exchanger - Google Patents
Parallel flow heat exchanger Download PDFInfo
- Publication number
- CN102401512A CN102401512A CN2011103704756A CN201110370475A CN102401512A CN 102401512 A CN102401512 A CN 102401512A CN 2011103704756 A CN2011103704756 A CN 2011103704756A CN 201110370475 A CN201110370475 A CN 201110370475A CN 102401512 A CN102401512 A CN 102401512A
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- header
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- refrigerant pipe
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F25—REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
- F25B—REFRIGERATION MACHINES, PLANTS OR SYSTEMS; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS
- F25B39/00—Evaporators; Condensers
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- Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- Mechanical Engineering (AREA)
- Thermal Sciences (AREA)
- General Engineering & Computer Science (AREA)
- Heat-Exchange Devices With Radiators And Conduit Assemblies (AREA)
Abstract
The invention provides a parallel flow heat exchanger which comprises two header pipes and a plurality of flat pipes which are connected between the two header pipes, wherein a plurality of fins are arranged between every two adjusting flat pipes, two refrigerant pipes which are communicated with the inner parts of the header pipes are arranged on the header pipes, and each refrigerant pipe extends into each header pipe and is provided with an oil guide structure which is close to the bottom of the inner wall of each header pipe. Each refrigerant pipe extends into each header pipe from the bottom of each header pipe, and each oil guide structure is an oil guide hole A which is arranged at the wall of each refrigerant pipe which extends into each header pipe and is lower than an orifice A of each refrigerant pipe. Selectively, each refrigerant pipe extends into each header pipe from the side of each header pipe, and each oil guide structure is an orifice B of each refrigerant pipe which extends into one end in each header pipe so as to downwards extend and be close to the wall of each header pipe. Selectively, each refrigerant pipe is horizontally or slantwise sleeved into each header pipe from the orifice of each header pipe and forms into a distribution pipe of which the top is provided with a plurality of through holes, and the oil guide structure is an oil guide hole B arranged at the bottom of the distribution pipe. Refrigeration oil in the parallel flow heat exchanger can enter into a compressor from the header pipes so as to be capable of normally circulating along with the flow of the refrigerant, so that the interference of the circulation of an air-conditioning system caused by the accumulation of the refrigeration oil in each header pipe can be avoided.
Description
Technical field
The present invention relates to a kind of parallel-flow heat exchanger.
Background technology
Parallel-flow heat exchanger is used to growing field as a kind of heat exchanger efficiently.In Chinese patent document number CN 102230693A the high parallel-flow heat exchanger of a kind of heat exchange efficiency was disclosed on November 2nd, 2011 like our company; Comprise header, lower header, be arranged on several flat tubes between two headers, be fixed with control stream plate in the lower header, this control stream plate is divided into first cavity and second cavity to header; The wall of first cavity is provided with the refrigerant interface tube; Second cavity is communicated with flat tube, it is characterized in that, said control stream plate is provided with at least 3 intercommunicating pores; First cavity and second cavity are communicated with, wherein have at least the spacing of an intercommunicating pore and adjacent intercommunicating pore to be different from the spacing of other adjacent intercommunicating pores.The parallel-flow heat exchanger of this structure can make that under the cold medium flux condition of different uniformity that in parallel-flow heat exchanger, flows improves, thereby improves heat exchange efficiency; Can satisfy the mobile air-conditioning that changes of the such refrigerant of convertible frequency air-conditioner has than higher efficiency.Simultaneously, install more conveniently and stable, realizing that under the situation of reasonable current-sharing, it is fewer that flow resistance increases.
But; When parallel-flow heat exchanger is used for air conditioner and uses as condenser, gathering of refrigeration oil can in refrigerant, be produced, particularly under worst cold case; Because the solubility temperature influence of refrigeration oil and refrigerant is bigger; Have more refrigeration oil and freeze-out, and accumulate in the parallel-flow heat exchanger, caused parallel-flow heat exchanger inner product oil.Because the header intracavity space of parallel-flow heat exchanger is bigger, when refrigeration oil can't enter into the coolant circulating system normal circulation, will cause the refrigeration oil of compressor to reduce, reduce the interior refrigerant flowing space of header and the blending space of refrigerant simultaneously.When using as condenser for a long time, might cause the compressor oil starvation to burn out, how to avoid the gathering of the refrigeration oil in the parallel-flow heat exchanger, make refrigeration oil can enter into the coolant circulating system normal circulation smoothly, become problem demanding prompt solution.
Summary of the invention
The object of the invention aim to provide a kind of simple and reasonable, connect closely, flow resistance is little, heat exchange efficiency is high, the parallel-flow heat exchanger that can avoid refrigeration oil to assemble, to overcome weak point of the prior art.
A kind of parallel-flow heat exchanger by this purpose design; Comprise header and be connected several flat tubes between two headers; Be provided with fin between the adjacent flat tube; Its architectural feature is that header is provided with the refrigerant pipe with its internal communication, and said refrigerant pipe stretches into header and is provided with the oily structure of drawing near header inwall bottom.
Said refrigerant pipe inserts into the inner from the bottom of header, draw oily structure and be arranged on that the refrigerant pipe stretches into the tube wall in the header and be lower than its refrigerant pipe mouth of pipe A draw hydraulic fluid port A.The distance of drawing hydraulic fluid port A lowest part and header tube wall lowest part is H, and H is the 0.01-4.5 millimeter.
Said refrigerant pipe inserts into the inner from the sidepiece of header, draws oily structure and stretches into a end in the header to extending below and near the refrigerant pipe mouth of pipe B of header tube wall for the refrigerant pipe.Refrigerant pipe mouth of pipe B is straight angle shape or inclination, and mouth of pipe angle is the 0-90 degree.The distance of refrigerant pipe mouth of pipe B lowest part and header tube wall lowest part is H ', and H ' is the 0.01-4.5 millimeter.
Said distributing pipe draws hydraulic fluid port B and is positioned on the arm for being horizontally disposed with and the bottom is plugged with arm, and perhaps distributing pipe draws the terminal bottom that hydraulic fluid port B is positioned at for being obliquely installed and endcapped.
Said distributing pipe bottom is plugged with arm, draws hydraulic fluid port B and is positioned on the arm, and the opening angle that draws hydraulic fluid port B is the 0-90 degree, and perhaps the endcapped of distributing pipe draws the terminal bottom that hydraulic fluid port B is positioned at.The distance of drawing hydraulic fluid port B lowest part and header tube wall lowest part is H ", H " be the 0.01-4.5 millimeter.
Saidly draw oily structure and also comprise setting screen pack above that.
Through adopting technique scheme; The present invention's parallel-flow heat exchanger is provided with and can draws the condenser pipe that oil refluxes; Refrigeration oil can enter into compressor normal circulation (coolant circulating system) from header along with the flowing of refrigerant, and avoids header accumulated refrigeration oil to hinder the circulation of air-conditioning system; The distance of drawing oily mechanism (drawing the hydraulic fluid port or the refrigerant mouth of pipe) and header tube wall through control; Can reduce the impurity foul and stop up and to draw oily mechanism (drawing the hydraulic fluid port or the refrigerant mouth of pipe), when reducing refrigerant in the refrigerant pipe simultaneously and flowing to header, the refrigerant of outflow is to the influence of air-conditioning system.It also has characteristics simple and reasonable, that connection is tight, flow resistance is little, heat exchange efficiency is high, the scope of application is wide.
Description of drawings
Fig. 1 is the front view of first embodiment of the invention parallel-flow heat exchanger;
Fig. 2 is the stereogram (broken section) that the first embodiment header is connected with the refrigerant pipe;
Fig. 3 is the cutaway view of Fig. 2.
Fig. 4 is the cutaway view that the second embodiment header is connected with the refrigerant pipe.
Fig. 5 is the stereogram that the 3rd embodiment header is connected with the refrigerant pipe;
Fig. 6 is the cutaway view of Fig. 5.
Fig. 7 is the cutaway view that the 4th embodiment header is connected with the refrigerant pipe.
Fig. 8 is the cutaway view that the 5th embodiment header is connected with the refrigerant pipe.
Fig. 9 is the cutaway view that the 6th embodiment header is connected with the refrigerant pipe.
Among the figure: 1 is header, and 2 is the refrigerant pipe, and 3 for drawing hydraulic fluid port A, and 3 ' for drawing hydraulic fluid port B, and 4 is arm, and 5 is distributing pipe, and 6 is through hole, and 7 is the refrigerant interface tube, and 8 is oil collecting zone, and 9 is end cap; 10 is refrigerant pipe mouth of pipe A, and 10 ' is refrigerant pipe mouth of pipe B, and 11 is flat tube.
The specific embodiment
Below in conjunction with accompanying drawing and embodiment the present invention is further described.
First embodiment
Referring to Fig. 1-Fig. 3; This parallel-flow heat exchanger; Comprise header 1 and be connected several flat tubes 11 between two headers 1; Be provided with fin (not marking among the figure) between the adjacent flat tube 11, its header 1 is provided with the refrigerant pipe 2 with its internal communication, and said refrigerant pipe 2 is provided with the oily structure of drawing near header 1 inwall bottom.
When parallel-flow heat exchanger used as evaporimeter, refrigerant entered in the header 1 through the refrigerant pipe mouth of pipe 10 of refrigerant pipe 2, and some refrigerant also can get into header 1 through drawing hydraulic fluid port A 3; When parallel-flow heat exchanger used as condenser, liquid refrigerant can enter into the refrigerant mouth of pipe 10, returns compressor from refrigerant pipe 2; The refrigeration oil that condensation process produces is because density is bigger; And be pooled to the lower oil collecting zone 8 of header 1 inwall; Because it is lower to draw the aperture position of hydraulic fluid port A 3; Can draw back compressor to the oil-collecting in the lower oil collecting zone 8 of header 1 inwall, thereby reduce refrigeration oil compiling in header 1, reduce the risk of compressor oil starvation.
Distance from the lower edge of drawing hydraulic fluid port A 3 to the lowest part of the lower oil collecting zone 8 of header internal face is H (distance of promptly drawing hydraulic fluid port A 3 lowest parts and header 1 tube wall lowest part is H); Then the scope of H is the 0.01-4.5 millimeter; When the amount of oil-collecting during, just have refrigeration oil and flow into and draw in the hydraulic fluid port A 3 greater than H.When H too hour, can cause the difficulty of processing and manufacturing, be easy to generate waste product; When the H value was big, the oil-collecting amount in the pipe increased, and therefore H is 0.5 millimeter in the present embodiment; Be easy to make refrigeration oil to enter in the refrigerant pipe; Also avoid the pollutant in the system,, enter into coolant circulating system like welding slag etc.
Second embodiment
Referring to Fig. 4, this parallel-flow heat exchanger is that with the first embodiment main distinction set-up mode of its parallel-flow heat exchanger is vertically setting, and the header 1 that has the refrigerant pipe is for vertically being provided with, and flat tube 11 is horizontally disposed with.The end cap 9 of header 1 is provided with refrigerant interface tube 7, and refrigerant pipe 2 inserts header 1 from this interface.Wherein, draw hydraulic fluid port A 3 and be positioned at the position of refrigerant pipe 2, draw the circular hole that is shaped as of hydraulic fluid port A 3 near the lower oil collecting zone 8 of header 1 internal face; The hole of other shapes; If can realize drawing the function of oil, all in protection scope of the present invention, its spacing H (unreceipted among the figure) is 0.02 millimeter; The height that it adopted also is to enter into coolant circulating system in order to reduce welding impurity.Other do not state part, with first embodiment, no longer repeat.
The 3rd embodiment
Referring to Fig. 5-6; This parallel-flow heat exchanger; Itself and the first embodiment main distinction are that header 1 side of its parallel-flow heat exchanger is provided with refrigerant pipe 2, and refrigerant interface tube (being to mark among the figure) is positioned on the side wall surface of header 1, and promptly refrigerant pipe 2 inserts into the inner from the sidepiece of header 1.Draw oily structure and be refrigerant pipe 2 and stretch into a end in the header 1 to extending below (bending) and near the refrigerant pipe mouth of pipe B 10 ' of header 1 tube wall; This mouth of pipe is positioned at lower oil collecting zone 8 places of header internal face, and the distance of refrigerant pipe mouth of pipe B 10 ' lowest part and header 1 tube wall lowest part is H ', and H ' is the 0.01-4.5 millimeter; Present embodiment wherein H ' is 4.5 millimeters; Because the flow of refrigerant pipe is bigger, thus when H hour, can be that the refrigerant mouth of pipe is too near header 1 internal face; And reduce the area that flows to header, increased the resistance that refrigerant flows through this mouth of pipe; Refrigerant pipe mouth of pipe B 10 ' is a straight angle shape simultaneously, and refrigerant pipe mouth of pipe B 10 ' is parallel with the inwall of header 1 like this, can avoid the impurity foul to get into, stop up air-conditioning system.Other do not state part, with first embodiment, no longer repeat.
The 4th embodiment
Referring to Fig. 7, this parallel-flow heat exchanger, itself and the second embodiment main distinction are that header 1 side of its parallel-flow heat exchanger is provided with refrigerant pipe 2, and refrigerant interface tube 7 is positioned on the side wall surface of header 1, and promptly refrigerant pipe 2 inserts into the inner from the sidepiece of header 1.Draw oily structure and be refrigerant pipe 2 and stretch into a end in the header 1 to extending below (bending) and near the refrigerant pipe mouth of pipe B 10 ' of header 1 tube wall; This mouth of pipe is positioned at lower oil collecting zone 8 places of header internal face, and the distance of refrigerant pipe mouth of pipe B 10 ' lowest part and header 1 tube wall lowest part is H ', and H ' is the 0.01-4.5 millimeter; Present embodiment wherein H ' is 1.5 millimeters; Because the flow of refrigerant pipe is bigger, it has adopted bigger H distance, can reduce flow resistance; Refrigerant pipe mouth of pipe B 10 ' is an inclination simultaneously, and present embodiment mouth of pipe angle a is preferably 30 degree, and the internal face of the refrigerant mouth of pipe and lower is that the high side of a side is low like this; Refrigerant is easy to from flowing out apart from eminence with internal face; And, when bigger impurity foul occurring, be not easy to stop up.Other do not state part, with second embodiment, no longer repeat.
The 5th embodiment
Referring to Fig. 8, this parallel-flow heat exchanger, itself and the first embodiment main distinction are that its refrigerant pipe 2 is inserted in it from the mouth of pipe level of header 1, and form the distributing pipe 5 that the top is furnished with through hole 6, to realize that refrigerant enters into flat tube 11 more equably.Drawing oily structure is to be arranged on the arm 4 of distributing pipe 5 bottoms and to draw hydraulic fluid port B 3 ', and refrigerant pipe 2 gets into header 1 from header 1 end cap (not marking among the figure), because end cap 9 has certain thickness; Cause distributing pipe 5 and header 1 inwall that certain spacing is arranged; The through hole 6 of existing distributing pipe 5 can not effectively effectively suck the oil that combines in lower oil collecting zone 8 places in the coolant circulating system, in the present embodiment, at distributing pipe 5 for being horizontally disposed with and the bottom is plugged with arm 4; Arm 4 is provided with and draws hydraulic fluid port B 3 '; And this draws lower oil collecting zone 8 places that hydraulic fluid port B 3 ' is positioned at header 1 inwall, and both distances are H ", H " be the 0.01-4.5 millimeter.When refrigerant flows fast, can form low pressure in the junction of arm 4 and distributing pipe 5, and the low pressure that forms can effectively be incorporated into the oil-collecting at this place in the coolant circulating system to the refrigerant that draws hydraulic fluid port 3 places in distributing pipe 5.H in the present embodiment " be 0.01 millimeter; and its opening that draws hydraulic fluid port B 3 ' is an inclination; the opening angle that present embodiment draws hydraulic fluid port B 3 ' is preferably 15 degree; refrigerant can be fully near oil collecting zone 8, and the plane of drawing hydraulic fluid port 3 and header internal face bottom has a certain degree, and avoids the impurity foul to stop up when can draw oil and draws hydraulic fluid port.Other do not state part, with first embodiment, no longer repeat.
The 6th embodiment
Referring to Fig. 9; This parallel-flow heat exchanger, itself and the 5th embodiment main distinction are that its refrigerant pipe 2 tilts to be inserted in it from the mouth of pipe of header 1, and distributing pipe 5 is for being obliquely installed and endcapped; Draw the terminal bottom that hydraulic fluid port B 3 ' is positioned at; Downside at distributing pipe 5 does not have perforate, helps can being transported to refrigerant pipe 2 from the refrigeration oil that draws hydraulic fluid port B 3 ' entering, thereby gets into coolant circulating system.H in the present embodiment wherein " be 0.5mm, the angle of inclination of drawing hydraulic fluid port B 3 ' is 3 degree, the processing of drawing hydraulic fluid port B 3 ' is more convenient, effectively introduces refrigeration oil in the distributing pipe 5 simultaneously, finally is incorporated in the refrigerant system.Other do not state part, with the 5th embodiment, no longer repeat.
The 7th embodiment
This parallel-flow heat exchanger, itself and the first embodiment main distinction are to draw oil port and are provided with screen pack, and this screen pack is the impurity foul in the filtration system effectively, avoids entering into the refrigerant system, improves the security of system.
Claims (10)
1. parallel-flow heat exchanger; Comprise header (1) and be connected several flat tubes (11) between two headers (1); Adjacent flat tube is provided with fin between (11); It is characterized in that header (1) is provided with the refrigerant pipe (2) with its internal communication, said refrigerant pipe (2) stretches into header (1) and is provided with the oily structure of drawing near header (1) inwall bottom.
2. parallel-flow heat exchanger according to claim 1; It is characterized in that said refrigerant pipe (2) inserts into the inner from the bottom of header (1), draw oily structure for be arranged on refrigerant pipe (2) and stretch into the tube wall in the header (1) and be lower than its refrigerant pipe mouth of pipe A (10) draw hydraulic fluid port A (3).
3. parallel-flow heat exchanger according to claim 2 is characterized in that said distance of drawing hydraulic fluid port A (3) lowest part and header (1) tube wall lowest part is H, and H is the 0.01-4.5 millimeter.
4. parallel-flow heat exchanger according to claim 1; It is characterized in that said refrigerant pipe (2) inserts into the inner from the sidepiece of header (1), draw oily structure and be refrigerant pipe (2) and stretch into a end in the header (1) to extending below and near the refrigerant pipe mouth of pipe B (10 ') of header (1) tube wall.
5. parallel-flow heat exchanger according to claim 4 is characterized in that said refrigerant pipe mouth of pipe B (10 ') is straight angle shape or inclination, and mouth of pipe angle is the 0-90 degree.
6. parallel-flow heat exchanger according to claim 5 is characterized in that the distance of said refrigerant pipe mouth of pipe B (10 ') lowest part and header (1) tube wall lowest part is H ', and H ' is the 0.01-4.5 millimeter.
7. parallel-flow heat exchanger according to claim 1; It is characterized in that said refrigerant pipe (2) is inserted in it from the mouth of pipe level or the inclination of header (1); And form the distributing pipe (5) that the top is furnished with through hole (6), draw oily structure and draw hydraulic fluid port B (3 ') bottom the distributing pipe (5) for being arranged on.
8. parallel-flow heat exchanger according to claim 7; It is characterized in that said distributing pipe (5) is for being horizontally disposed with and the bottom is plugged with arm (4); Drawing hydraulic fluid port B (3 ') is positioned on the arm (4); The opening angle that draws hydraulic fluid port B (3 ') is the 0-90 degree, and perhaps distributing pipe (5) draws the terminal bottom that hydraulic fluid port B (3 ') is positioned at for being obliquely installed and endcapped.
9. parallel-flow heat exchanger according to claim 8 is characterized in that said distance of drawing hydraulic fluid port B (3 ') lowest part and header (1) tube wall lowest part is H ", H " be the 0.01-4.5 millimeter.
10. according to claim 3 or 6 or 9 described parallel-flow heat exchangers, it is characterized in that saidly drawing oily structure and also comprising setting screen pack above that.
Priority Applications (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610225039.2A CN105890233B (en) | 2011-11-18 | 2011-11-18 | Parallel-flow heat exchanger |
| CN201110370475.6A CN102401512B (en) | 2011-11-18 | 2011-11-18 | Parallel-flow heat exchanger |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201110370475.6A CN102401512B (en) | 2011-11-18 | 2011-11-18 | Parallel-flow heat exchanger |
Related Child Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201610225039.2A Division CN105890233B (en) | 2011-11-18 | 2011-11-18 | Parallel-flow heat exchanger |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN102401512A true CN102401512A (en) | 2012-04-04 |
| CN102401512B CN102401512B (en) | 2016-05-11 |
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Family Applications (2)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201610225039.2A Active CN105890233B (en) | 2011-11-18 | 2011-11-18 | Parallel-flow heat exchanger |
| CN201110370475.6A Expired - Fee Related CN102401512B (en) | 2011-11-18 | 2011-11-18 | Parallel-flow heat exchanger |
Family Applications Before (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201610225039.2A Active CN105890233B (en) | 2011-11-18 | 2011-11-18 | Parallel-flow heat exchanger |
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| Country | Link |
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| CN (2) | CN105890233B (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111912283A (en) * | 2020-09-04 | 2020-11-10 | 浙江盾安热工科技有限公司 | Liquid separation structure and heat exchanger |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112629307A (en) * | 2021-01-05 | 2021-04-09 | 珠海格力电器股份有限公司 | Interpolation injection pipe subassembly and microchannel heat exchanger |
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| JP2005024188A (en) * | 2003-07-03 | 2005-01-27 | Matsushita Electric Ind Co Ltd | Heat exchanger |
| JP2006226590A (en) * | 2005-02-17 | 2006-08-31 | Matsushita Electric Ind Co Ltd | Refrigeration cycle device |
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| CN201983527U (en) * | 2010-11-18 | 2011-09-21 | 珠海格力电器股份有限公司 | Oil returning device for partial heat recovery aircooled chiller unit |
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| KR100776075B1 (en) * | 2001-05-14 | 2007-11-16 | 한라공조주식회사 | Condenser in one form with oil separator |
| WO2009012795A1 (en) * | 2007-07-24 | 2009-01-29 | Carrier Corrporation | Manifold for a multi-compressor refrigeration system |
| CN201104059Y (en) * | 2007-09-05 | 2008-08-20 | 骆宣佐 | Multi-medium refrigeration cocurrent flow type condenser |
| CN201110725Y (en) * | 2007-11-05 | 2008-09-03 | 陈苏红 | Integrated condenser of automobile speed variator oil cold device and air conditioner |
| CN101464081A (en) * | 2008-12-31 | 2009-06-24 | 李世岗 | Siphon type gas-liquid separation and oil return apparatus in parallel compression refrigeration units |
| CN101936670B (en) * | 2009-06-30 | 2013-05-15 | 王磊 | Heat exchanger with micro-channel, parallel-flow and all-aluminum flat pipe welding structure and application |
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2011
- 2011-11-18 CN CN201610225039.2A patent/CN105890233B/en active Active
- 2011-11-18 CN CN201110370475.6A patent/CN102401512B/en not_active Expired - Fee Related
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2005024188A (en) * | 2003-07-03 | 2005-01-27 | Matsushita Electric Ind Co Ltd | Heat exchanger |
| JP2006226590A (en) * | 2005-02-17 | 2006-08-31 | Matsushita Electric Ind Co Ltd | Refrigeration cycle device |
| CN201436519U (en) * | 2009-05-08 | 2010-04-07 | 上海瀚艺冷冻机械有限公司 | Dual purpose vertical pot-type heat exchanger for evaporator and condenser |
| CN201983527U (en) * | 2010-11-18 | 2011-09-21 | 珠海格力电器股份有限公司 | Oil returning device for partial heat recovery aircooled chiller unit |
| CN102003843A (en) * | 2010-11-30 | 2011-04-06 | 江苏兆胜空调有限公司 | Direct type evaporator capable of automatically returning oil |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111912283A (en) * | 2020-09-04 | 2020-11-10 | 浙江盾安热工科技有限公司 | Liquid separation structure and heat exchanger |
Also Published As
| Publication number | Publication date |
|---|---|
| CN105890233B (en) | 2018-06-29 |
| CN102401512B (en) | 2016-05-11 |
| CN105890233A (en) | 2016-08-24 |
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Owner name: MIDEA GROUP CO., LTD. Free format text: FORMER OWNER: MEIDI ELECTRIC APPLIANCES CO., LTD., GUANGDONG Effective date: 20131216 |
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Effective date of registration: 20131216 Address after: 528311 Guangdong, Foshan, Beijiao, the United States, the United States and the United States on the avenue of the United States, the headquarters of the United States building B floor, District, 26-28 Applicant after: Midea Group Co., Ltd. Address before: 528311, the beautiful headquarters building, 6 beautiful avenue, Beijiao Town, Shunde District, Guangdong, Foshan Applicant before: Meidi Electric Appliances Co., Ltd., Guangdong |
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