CN101929766A - Heat exchanger for air conditioner - Google Patents
Heat exchanger for air conditioner Download PDFInfo
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- CN101929766A CN101929766A CN2009102145358A CN200910214535A CN101929766A CN 101929766 A CN101929766 A CN 101929766A CN 2009102145358 A CN2009102145358 A CN 2009102145358A CN 200910214535 A CN200910214535 A CN 200910214535A CN 101929766 A CN101929766 A CN 101929766A
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- heat
- transfer pipe
- pipe assembly
- heat exchanger
- air conditioner
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Abstract
The invention relates to a heat exchanger for an air conditioner, in particular to the heat exchanger for the air conditioner. The heat exchanger comprises an inlet pipe, a plurality of heat transfer pipe components and an outlet pipe, which are all sequentially connected on a pipeline, wherein each of the plurality of heat transfer pipe components comprises a plurality of heat transfer pipes and a plurality of radiating fins; and the plurality of heat transfer pipe components form at least one heat transfer pipe branch. The heat exchanger is characterized in that: the heat transfer pipe components are sequentially connected according to the size of the pipe diameters of the heat transfer pipes of the heat transfer pipe components. Because the pipe diameters of the heat transfer pipes in the heat transfer pipe components are different and the heat transfer pipe components are sequentially connected according to the size of the pipe diameters, the heat exchange efficiency of the heat exchanger is improved to a certain extent no matter the heat exchanger serves as a condenser or an evaporator.
Description
Technical field
The present invention relates to a kind of heat exchanger that is used for air-conditioning, specifically is the heat exchanger that is used for air conditioner.
Background technology
No matter air conditioner is the heat exchanger in the indoor set, or the heat exchanger in the off-premises station, all should use as evaporimeter, also will use as condenser.But for the gas-liquid system refrigeration system, the optimum state of heat exchanger when using with condenser as evaporimeter is different.Specifically: when heat exchanger uses as condenser, adopt the less heat-transfer pipe of caliber can improve the flowing velocity of refrigerant in system, help improving heat transfer coefficient; The bigger heat-transfer pipe of employing caliber can reduce the loss of refrigerant pressure when heat exchanger uses as evaporimeter, helps the boiling heat transfer of evaporimeter.
Therefore the weak point of existing air conditioner heat exchanger is: because the heat-transfer pipe of heat exchanger all is isometrical pipe, and the heat exchange efficiency in the time of can not giving full play to its evaporation or condensation.
Summary of the invention
The technical issues that need to address of the present invention provide a kind of air conditioner heat exchanger that can improve refrigeration simultaneously and heat heat exchange efficiency.
For solving the problems of the technologies described above, the technical solution used in the present invention is:
A kind of heat exchanger of air conditioner, it comprises inlet tube, a plurality of heat-transfer pipe assembly and the outlet that connects successively on the pipeline, each heat-transfer pipe assembly comprises some heat-transfer pipes and some radiating fins, these some heat-transfer pipes are formed at least one heat-transfer pipe branch road, it is characterized in that: each heat-transfer pipe assembly connects successively according to the caliber size of its heat-transfer pipe.
As one of improvement of the present invention: this heat exchanger comprises the first heat-transfer pipe assembly and the second less heat-transfer pipe assembly of caliber that caliber is bigger, and inlet tube, the first heat-transfer pipe assembly, the second heat-transfer pipe assembly are connected on pipeline successively with outlet.
As two of improvement of the present invention: the heat-transfer pipe quantity of the described first heat-transfer pipe assembly is greater than the heat-transfer pipe quantity of the described second heat-transfer pipe assembly.
As three of improvement of the present invention: the described first heat-transfer pipe assembly comprises two heat-transfer pipe branch roads, the input of these two heat-transfer pipe branch roads is connected with inlet tube by first distributor, and the output of these two heat-transfer pipe branch roads is connected with the described second heat-transfer pipe assembly by second distributor; Described second heat-transfer pipe has a heat-transfer pipe branch road.For further improving the heat exchange efficiency of heat exchanger as evaporimeter, first heat-transfer pipe can split into two branch roads.Cold-producing medium liquefaction efficient when simultaneously first heat-transfer pipe splits into two branch roads and also helps heat exchanger as condenser.
As four of improvement of the present invention: the described first heat-transfer pipe assembly is fixedly installed on the top of second heat-transfer pipe by connector.This improvement helps the heating and defrosting of heat exchanger.Easy frosting when the off-premises station heat exchanger uses as evaporimeter, and because gravity effect, frozen water flows downward, and the frost of bottommost is thicker.Therefore at reverse cycle defrost, when outdoor heat exchanger uses as condenser, help thawing below the branch road that temperature is higher is arranged on, shortened defrosting time the bottom frost.
As five of improvement of the present invention: the input of two heat-transfer pipe branch roads of the described first heat-transfer pipe assembly all is arranged on the top, and output all is arranged on the below; The input of the described second heat-transfer pipe assembly is arranged on the below, and output is arranged on the top, and is close to the bottom of the described first heat-transfer pipe assembly, and this input is connected with described second distributor, and this output is connected with described outlet.
Compared with prior art, the invention has the beneficial effects as follows:
The caliber of the heat-transfer pipe in each heat-transfer pipe assembly is different, and connects successively according to the size of its heat-transfer pipe caliber.
When heat exchanger uses as condenser, the gaseous refrigerant of HTHP will be mobile than small end to the heat-transfer pipe caliber from the bigger end of heat-transfer pipe caliber.Gaseous refrigerant flows in the bigger heat-transfer pipe of caliber during beginning, because the contact area of cold-producing medium and heat-transfer pipe is also bigger, helps the heat exchange liquefaction of gaseous refrigerant.After this, complete liquid cold-producing medium will flow in the less heat-transfer pipe of caliber, enter super cooled sect, because the refrigerant flowing velocity of super cooled sect the inside is slow, heat exchange efficiency is low.Dwindle by mobile internal diameter, improve degree of supercooling, and then improved mass flow, help improving refrigerating capacity and efficiency super cooled sect.
When heat exchanger used as evaporimeter, high pressure liquid refrigerant will flow to the bigger end of heat-transfer pipe from the heat-transfer pipe caliber than small end and flow then earlier through throttling arrangement step-down becoming gas-liquid two-phase attitude.During beginning, gaseous state content is low in the cold-producing medium, liquid content height, and refrigerant flow rate is slow, cold-producing medium is arranged in the less heat-transfer pipe of caliber flows, and can improve the flow velocity of cold-producing medium, helps the heat absorption vaporization of cold-producing medium.After this, gaseous state content raises gradually, refrigerant flow rate accelerates gradually, the pressure loss becomes the principal element of restriction heat exchange, cold-producing medium is arranged in the bigger heat-transfer pipe of caliber flows, the contact area of cold-producing medium and heat-transfer pipe is bigger, and the pressure loss reduces, improve the mass flow of system, and then improved heating capacity and efficiency.
Therefore no matter be as condenser or evaporimeter, the heat exchange efficiency of heat exchanger of the present invention all is improved to some extent.
Description of drawings
Fig. 1 is a stereogram of the present invention;
Fig. 2 is a local view of apparatus of the present invention;
Fig. 3 is the front view of first heat-transferring assembly of the present invention and second heat-transferring assembly.
The specific embodiment
The present invention is further illustrated below in conjunction with accompanying drawing.
As shown in Figure 1, heat exchanger of the present invention comprises on the pipeline and to connect successively: inlet tube 1, the first heat-transfer pipe assembly 2, the second heat-transfer pipe assembly 3 and outlet 9.Each heat-transfer pipe assembly includes some heat-transfer pipes and the radiating fin that is arranged on the heat-transfer pipe.
As shown in Figure 2, the first heat-transfer pipe assembly 2 comprises two heat-transfer pipe branch roads being made up of some heat-transfer pipes, and the second heat-transfer pipe assembly 3 comprises a heat-transfer pipe branch road of being made up of some heat-transfer pipe assemblies.And the caliber of the heat-transfer pipe of the first heat-transfer pipe assembly 2 is greater than the caliber of the heat-transfer pipe of the second heat-transfer pipe assembly 3.In addition, each heat-transfer pipe branch road is formed by 4 heat-transfer pipes and some bridge pieces.Therefore the quantity of the first heat-transfer pipe assembly, 2 heat-transfer pipes is more than the quantity of the second heat-transfer pipe assembly, 3 heat-transfer pipes.
As Fig. 2, shown in Figure 3, the input 11,13 of two heat-transfer pipe branch roads of the first heat-transfer pipe assembly 2 all is arranged on the top, and output then all is arranged on below 12,14.And the input 11,13 of two heat-transfer pipe branch roads is connected with inlet tube 1 by first distributor 4 respectively, and the output 12,14 of these two heat-transfer pipe branch roads is connected with the described second heat-transfer pipe assembly 3 by second distributor 5.
As Fig. 2, shown in Figure 3, the second heat-transfer pipe assembly 3 is fixedly installed on the top of first heat-transfer pipe 2 by connector 6, and has a heat-transfer pipe branch road.The input 22 of the second heat-transfer pipe assembly 3 is connected with second distributor 5, and this output 22 is connected with described outlet 9.And this input 21 is arranged on the below, and this output 22 is arranged on the top and is close to the bottom of the first heat-transfer pipe assembly 2.
When heat exchanger of the present invention used as condenser, the gaseous refrigerant that compressor is discharged entered two heat-transfer pipe branch roads of the first heat-transfer pipe assembly 2 through distributor 4 from inlet tube 1.Cold-producing medium gathers to distributor 5 from the output 12,14 of two heat-transfer pipe branch roads subsequently.And then enter the second heat-transfer pipe assembly 2 from the input 21 of the second heat-transfer pipe assembly that is positioned at heat exchanger bottom.The last cold-producing medium that has liquefied is discharged through outlet 9 from the output 22 of the second heat-transfer pipe assembly.
And the present invention is when using as evaporimeter, and the flow direction during as condenser is opposite with the present invention for the flow direction of cold-producing medium.
Claims (6)
1. the heat exchanger of an air conditioner, it comprises inlet tube (1), a plurality of heat-transfer pipe assembly and the outlet (9) that connects successively on the pipeline, each heat-transfer pipe assembly comprises some heat-transfer pipes and some radiating fins, these some heat-transfer pipes are formed at least one heat-transfer pipe branch road, it is characterized in that: each heat-transfer pipe assembly connects successively according to the caliber size of its heat-transfer pipe.
2. the heat exchanger of air conditioner according to claim 1, it is characterized in that: this heat exchanger comprises the first heat-transfer pipe assembly (2) and the second less heat-transfer pipe assembly (3) of caliber that caliber is bigger, and inlet tube, the first heat-transfer pipe assembly, the second heat-transfer pipe assembly are connected on pipeline successively with outlet.
3. the heat exchanger of air conditioner according to claim 2, it is characterized in that: the heat-transfer pipe quantity of the described first heat-transfer pipe assembly is greater than the heat-transfer pipe quantity of the described second heat-transfer pipe assembly.
4. the heat exchanger of air conditioner according to claim 3, it is characterized in that: the described first heat-transfer pipe assembly comprises two heat-transfer pipe branch roads, the input of these two heat-transfer pipe branch roads (11,13) is connected with inlet tube by first distributor (4), and the output of these two heat-transfer pipe branch roads (12,14) is connected with the described second heat-transfer pipe assembly by second distributor (5); Described second heat-transfer pipe has a heat-transfer pipe branch road.
5. according to the heat exchanger of the arbitrary described air conditioner of claim 2 to 4, it is characterized in that: the described first heat-transfer pipe assembly is fixedly installed on the top of second heat-transfer pipe by connector (6).
6. the heat exchanger of air conditioner according to claim 5 is characterized in that: above the input of two heat-transfer pipe branch roads of the described first heat-transfer pipe assembly (11,13) all is arranged on, below output all is arranged on (12,14); The input of the described second heat-transfer pipe assembly (21) is arranged on the below, output (22) is arranged on the top, and be close to the bottom of the described first heat-transfer pipe assembly, and this input (22) is connected with described second distributor (5), and this output (22) is connected with described outlet (9).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009102145358A CN101929766A (en) | 2009-12-31 | 2009-12-31 | Heat exchanger for air conditioner |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009102145358A CN101929766A (en) | 2009-12-31 | 2009-12-31 | Heat exchanger for air conditioner |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN101929766A true CN101929766A (en) | 2010-12-29 |
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ID=43369088
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2009102145358A Pending CN101929766A (en) | 2009-12-31 | 2009-12-31 | Heat exchanger for air conditioner |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN101929766A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103673402A (en) * | 2013-12-31 | 2014-03-26 | 广东志高空调有限公司 | Contraction type heat exchanger |
| CN110926051A (en) * | 2019-11-21 | 2020-03-27 | 广东美的暖通设备有限公司 | Outdoor heat exchanger assembly, air conditioning system and defrosting method thereof |
-
2009
- 2009-12-31 CN CN2009102145358A patent/CN101929766A/en active Pending
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103673402A (en) * | 2013-12-31 | 2014-03-26 | 广东志高空调有限公司 | Contraction type heat exchanger |
| CN103673402B (en) * | 2013-12-31 | 2016-06-08 | 广东志高空调有限公司 | A kind of shrinkage type interchanger |
| CN110926051A (en) * | 2019-11-21 | 2020-03-27 | 广东美的暖通设备有限公司 | Outdoor heat exchanger assembly, air conditioning system and defrosting method thereof |
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| C02 | Deemed withdrawal of patent application after publication (patent law 2001) | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Open date: 20101229 |