CN201242319Y - Parallel flow evaporator for air conditioner - Google Patents
Parallel flow evaporator for air conditioner Download PDFInfo
- Publication number
- CN201242319Y CN201242319Y CNU2008200503180U CN200820050318U CN201242319Y CN 201242319 Y CN201242319 Y CN 201242319Y CN U2008200503180 U CNU2008200503180 U CN U2008200503180U CN 200820050318 U CN200820050318 U CN 200820050318U CN 201242319 Y CN201242319 Y CN 201242319Y
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Abstract
The utility model discloses a parallel flow evaporator for an air-conditioner, which comprises a first collecting pipe, a second collecting pipe and a plurality of flat pipes which are parallel with each other, wherein coolant inlets and coolant outlets are respectively arranged on both ends of each of the flat pipes, all the coolant inlets of the flat pipes are connected on the first collecting pipe and are directly communicated with an input pipe, all the coolant outlets of the flat pipes are connected on the second collecting pipe and are directly communicated with the output pipe, and the coolant straightly flows through all the flat pipes, wherein two or more than two input pipes are connected on the first collecting pipe, which changes the flow path of the coolant in the evaporator and prevents the resistance loss due to the coolant flows in an S-shaped flow path, in the evaporator, since coolant which firstly enters the input pipes is in a low-temperature liquid state, the coolant is gradually evaporated into comparative high-temperature gas, and the resistance of the coolant in the liquid state is far away less than that in a vapor state, thereby the straight-flow type design can reduce the flowing pressure drop of the coolant and can improve the heat exchanging ability of the evaporator.
Description
Technical field
The utility model relates to the air conditioner refrigerating technical field, particularly a kind of parallel-flow evaporator that is applied in the console mode split-type air conditioner.
Background technology
The evaporimeter of traditional domestic air conditioning is to make with copper tube and fin formula heat exchanger, and the main material in the copper tube and fin formula heat exchanger is a copper.In addition, being connected between copper pipe and the aluminium foil is perforate on aluminium foil earlier, the aluminium foil string on copper pipe, and then by the copper pipe that swells, finally is fixed on aluminium foil on the copper pipe, but this connected mode, heat transfer efficiency is low.
Parallel-flow heat exchanger is a kind of full aluminium heater, and the heat exchange effect can reach 1.5 times of copper tube and fin formula heat exchanger.Identical heat exchange amount following consume the aluminium amount still less, cost is lower.But present used parallel-flow heat exchanger, its structure can only be used as condenser, and be widely used on the air conditioning for automobiles and some also arranged at present about the patent of parallel-flow heat exchanger as evaporimeter, a kind of vaporizer technology of double-deck unification is provided as patent 200620033502.5, patent 00248954.6 is a parallel-flow evaporator technology of utilizing a plurality of heat exchange units to be bound up, or the like.But these patents are not all considered the flow scheme design of parallel-flow heat exchanger, but directly use the flow scheme design mode of parallel flow condenser, are the parallel flow condenser structural representation (direction of arrow illustrates its flow scheme design) of present extensive use as accompanying drawing 1.It is characterized in that input pipe 3, efferent duct 5 are connected on the header 1 that coexists, because the effect of the dividing plate 6 of header inside, the refrigerant inlet of wherein a part of flat tube 4 and the direction of outlet (direction as the refrigerant inlet of the flat tube in B, D zone in the accompanying drawing 1 and A, C zone flat tube and outlet is opposite) have directly been changed, after making that cold-producing medium enters from input pipe 3, S-shaped flowing in parallel stream flat pipe 4 just flowed out from efferent duct 5 then.Cold-producing medium is in flow process, and the flat tube number that passes through is to reduce gradually.Cold-producing medium is in condensation process, and temperature is divided between 2 to 10 flow regions, and parallel flow condenser as shown in Figure 1 is that cold-producing medium is condensed into the liquid of relative low temperature gradually between A, B, four flow regions of C, D in flow process.Resistance when the resistance of cold-producing medium when steam state is far longer than liquid state, in order to reduce the drag losses that flow of refrigerant produces, flat tube quantity only is fit to condenser with the flow of refrigerant process mode of successively decreasing gradually and uses.But as evaporimeter, at first the cold-producing medium that enters from input pipe is a low temperature liquid, is flashed to the gas of relatively-high temperature gradually.When this flat tube quantity with the flow of refrigerant process successively decrease gradually be designed for evaporimeter the time, can increase the flow of refrigerant resistance, thereby reduce the refrigerating capacity of air-conditioning system.Therefore when being used for evaporimeter in the flow scheme design mode of parallel flow condenser, because of thermal performance and the heat exchange property that reckons without cold-producing medium, and cause heat exchange efficiency low, these patents all fail to solve effectively the heat exchange efficiency problem of parallel-flow evaporator.
The utility model content
The technical problems to be solved in the utility model is to overcome the deficiencies in the prior art, by reducing the flow pressure drop of cold-producing medium, provides a kind of heat exchange efficiency high idle call parallel-flow evaporator.
The realization the technical solution of the utility model is: a kind of idle call parallel-flow evaporator, be connected by input pipe and efferent duct in the refrigerating circuit of air-conditioner, it comprises first header, second header and many flat tubes that are arranged mutually parallel, refrigerant inlet and refrigerant outlet branch are located at the two ends of each bar flat tube, all the refrigerant inlet of flat tube all is connected on first header, and directly is communicated with input pipe; All the refrigerant outlet of flat tube all is connected on second header, and directly is communicated with efferent duct, and cold-producing medium is all linearly flowing in the flat tube.
Be connected with the input pipe more than 2 or 2 on described first header, the first header inside is provided with the some dividing plates that match with this header internal diameter, described dividing plate is separated into afflux pipeline section separate more than 2 or 2 with first header, is connected with an input pipe on each afflux pipeline section at least.Wherein, the radical of input pipe can decide according to the size of parallel-flow evaporator area.
Be the assignment of traffic of each afflux pipeline section inner refrigerant of balance, the distance between the described adjacent separator is identical.
Be connected with an input pipe on described each afflux pipeline section, and this input pipe is arranged on the center of header segment length direction, assignment of traffic that therefore can balance flat tube inner refrigerant.
Described efferent duct is arranged on the end of second header.
Compared with prior art, idle call parallel-flow evaporator provided by the utility model is by structural improvement, changed the flow path of evaporimeter inner refrigerant, avoid its S-shaped caused drag losses that flows, in evaporimeter, because the cold-producing medium that at first enters from input pipe is a low temperature liquid, is flashed to the gas of relatively-high temperature gradually.And the resistance of the resistance of cold-producing medium when liquid state when being far smaller than steam state, therefore this single flow design can reduce the flow pressure drop of cold-producing medium, thereby improves the exchange capability of heat of evaporimeter.Particularly,, therefore can further reduce drag losses, make whole evaporimeter be in same temperature range, improve its heat exchange efficiency to greatest extent because cold-producing medium has carried out mean allocation when when adopting many equally distributed input pipes.Simultaneously, this parallel-flow evaporator simplicity of design, processing realization easily.
Description of drawings
Fig. 1: parallel flow condenser structure and schematic flow sheet in the prior art;
Fig. 2: the structural representation of the utility model parallel-flow evaporator;
Fig. 3: be the schematic flow sheet of parallel-flow evaporator among Fig. 2.
The specific embodiment
Below in conjunction with the drawings and specific embodiments the utility model idle call parallel-flow evaporator is further specified.Fig. 2 is the structural representation of evaporimeter, and the concrete flow process of cold-producing medium as shown in Figure 3.Compare with the prior art of Fig. 1, the many input pipes 3 of the utility model evaporimeter are contained on first header 1, efferent duct 5 is contained in second header, 2 ends, and many flat tubes 4 are connected on first header 1 and between second header.Efferent duct 5 has only one, and input pipe 3 has 6 (having two at least), first header 1 that 6 input pipes 3 are housed is divided into 6 afflux pipeline sections of equal in length with dividing plate 6.Each input pipe 3 is contained in the middle part of each afflux pipeline section, and purpose is to make refrigerant flow mean allocation arrive each flat tube 4.The cold-producing medium of each afflux pipeline section directly, abreast from converge to after the refrigerant inlet of each root flat tube 4 flows to its refrigerant outlet converge behind second header 2 after again to efferent duct 5, and no longer S-shaped stream.This design can reduce the flow pressure drop of refrigeration, can make the parallel-flow evaporator uniform heat exchange, utilizes the heat exchange area of concurrent flow fully, improves the heat exchange efficiency of parallel-flow evaporator to greatest extent.
Because traditional flow process is S-shaped stream design, this design makes that the flow process of cold-producing medium is long, can increase the flow of refrigerant resistance, thereby reduces the refrigerating capacity of air-conditioning system.The cold-producing medium flow process of the utility model parallel-flow evaporator is to make the cold-producing medium mean allocation in the flat tube 4 of every part, and direct PARALLEL FLOW.Thisly directly and the flow scheme design of mean allocation can reduce the flow of refrigerant resistance, thus the refrigerating capacity of lifting air-conditioning system.
Claims (6)
1, a kind of idle call parallel-flow evaporator, be connected by input pipe and efferent duct in the refrigerating circuit of air-conditioner, it comprises first header, second header and many flat tubes that are arranged mutually parallel, refrigerant inlet and refrigerant outlet branch are located at the two ends of each bar flat tube, it is characterized in that: all the refrigerant inlet of flat tube all is connected on first header, and directly is communicated with input pipe; All the refrigerant outlet of flat tube all is connected on second header, and directly is communicated with efferent duct, and cold-producing medium is streamlined flow in whole flat tubes.
2, idle call parallel-flow evaporator according to claim 1, it is characterized in that: be connected with the input pipe more than 2 or 2 on described first header, the first header inside is provided with the some dividing plates that match with this header internal diameter, described dividing plate is separated into afflux pipeline section separate more than 2 or 2 with first header, is connected with an input pipe on each afflux pipeline section at least.
3, idle call parallel-flow evaporator according to claim 2, it is characterized in that: the distance between the described adjacent separator is identical.
4, according to claim 2 or 3 described idle call parallel-flow evaporators, it is characterized in that: be connected with an input pipe on described each afflux pipeline section, and this input pipe is arranged on the center of header segment length direction.
5, according to each described idle call parallel-flow evaporator in the claim 1 to 3, it is characterized in that: described efferent duct is arranged on the end of second header.
6, want 4 described idle call parallel-flow evaporators according to right, it is characterized in that: described efferent duct is arranged on the end of second header.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2008200503180U CN201242319Y (en) | 2008-07-04 | 2008-07-04 | Parallel flow evaporator for air conditioner |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2008200503180U CN201242319Y (en) | 2008-07-04 | 2008-07-04 | Parallel flow evaporator for air conditioner |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201242319Y true CN201242319Y (en) | 2009-05-20 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNU2008200503180U Expired - Lifetime CN201242319Y (en) | 2008-07-04 | 2008-07-04 | Parallel flow evaporator for air conditioner |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201242319Y (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102435021A (en) * | 2011-09-18 | 2012-05-02 | Tcl空调器(中山)有限公司 | Evaporator and flow designing method thereof |
| CN104676981A (en) * | 2013-11-29 | 2015-06-03 | 珠海格力电器股份有限公司 | Refrigerant diversion device, flat tube heat exchanger, air conditioner comprising refrigerant diversion device, and heat pump water heater comprising flat tube heat exchanger |
| CN105091624A (en) * | 2015-08-31 | 2015-11-25 | 湖南华强电气有限公司 | Vehicle-mounted air conditioner flat tube heat exchanger |
| CN106152614A (en) * | 2014-07-11 | 2016-11-23 | 杭州三花研究院有限公司 | A kind of refrigeration system and heat exchanger thereof |
| US10168083B2 (en) | 2014-07-11 | 2019-01-01 | Hangzhou Sanhua Research Institute Co., Ltd. | Refrigeration system and heat exchanger thereof |
-
2008
- 2008-07-04 CN CNU2008200503180U patent/CN201242319Y/en not_active Expired - Lifetime
Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102435021A (en) * | 2011-09-18 | 2012-05-02 | Tcl空调器(中山)有限公司 | Evaporator and flow designing method thereof |
| CN104676981A (en) * | 2013-11-29 | 2015-06-03 | 珠海格力电器股份有限公司 | Refrigerant diversion device, flat tube heat exchanger, air conditioner comprising refrigerant diversion device, and heat pump water heater comprising flat tube heat exchanger |
| CN104676981B (en) * | 2013-11-29 | 2019-08-06 | 珠海格力电器股份有限公司 | Coolant distribution device, flat pipe heat exchanger and air-conditioning, Teat pump boiler using it |
| CN106152614A (en) * | 2014-07-11 | 2016-11-23 | 杭州三花研究院有限公司 | A kind of refrigeration system and heat exchanger thereof |
| US10168083B2 (en) | 2014-07-11 | 2019-01-01 | Hangzhou Sanhua Research Institute Co., Ltd. | Refrigeration system and heat exchanger thereof |
| CN106152614B (en) * | 2014-07-11 | 2019-11-19 | 杭州三花研究院有限公司 | A kind of refrigeration system and its heat exchanger |
| CN105091624A (en) * | 2015-08-31 | 2015-11-25 | 湖南华强电气有限公司 | Vehicle-mounted air conditioner flat tube heat exchanger |
| CN105091624B (en) * | 2015-08-31 | 2018-01-26 | 湖南华强电气有限公司 | A kind of on-board air conditioner flat pipe heat exchanger |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CX01 | Expiry of patent term |
Granted publication date: 20090520 |