CN100520230C - Self-separating finned tube type heat exchanger for air conditioner - Google Patents
Self-separating finned tube type heat exchanger for air conditioner Download PDFInfo
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- CN100520230C CN100520230C CNB2007100996031A CN200710099603A CN100520230C CN 100520230 C CN100520230 C CN 100520230C CN B2007100996031 A CNB2007100996031 A CN B2007100996031A CN 200710099603 A CN200710099603 A CN 200710099603A CN 100520230 C CN100520230 C CN 100520230C
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Abstract
A self-distribution fin tube type heat exchanger for air conditioner is comprised by upper collection tube and lower collection tube, and connection tube and connecting tube which are parallel arranged between the upper and lower collection tubes, wherein the said connection tube and connecting tube use snake tube having fins, and quantity of the connection tubes are no less than two, two of which are arranged at two ends of the lower collection tube, and each connection tube is directly connected to the upper collection tube and the lower collection tube; and the upper end of the connecting tube is directly connected to the upper collection tube, and the lower end thereof is connected to the lower collection tube and extends into liquid of the lower collection tube. The invention adopts self-distribution structure, and can realize self-distribution of vapor/liquid phases of refrigerant so as to resolve the problem that the refrigerant of vapor/liquid phases flows nonuniformly in all channels when the heat exchanger serves as evaporator; the fins are inclined arranged along windward side in order to discharge condensed water or defrosted water in time. The invention has simple structure and has good distribution characteristic, and can be applied in heat pump air conditioner or other place needing air-cooled heat exchanger.
Description
Technical field
The present invention relates to a kind of idle call self-separating finned tube heat exchanger, be used for domestic air conditioning or other need the occasion of air cooling heat exchanger, belong to air conditioner technical field.
Background technology
In refrigerated air-conditioning system, adopt knockout to carry out separatory usually.Knockout is the auxiliary equipment between throttling arrangement and the evaporimeter, and its effect is exactly the refrigerant air-liquid two-phase mixture that throttle mechanism comes out to be assigned in each paths of evaporimeter equably go.Therefore have heat pump type air conditioner now special knockout generally all is installed, but variation or the knockout selection owing to operating mode is unreasonable in actual motion, cause the interior mass flow discrepancy of different pipes to spare.Flow is less in the pipe that has, evaporate to dryness too early, and flow is too much in the pipe that has, and outlet causes the very little degree of superheat, even contains partially liq, and both all make heat exchange area can not get sufficient utilization, have a strong impact on thereby systematic function caused.
Summary of the invention
Have now at the prior art deficiency, the purpose of this invention is to provide a kind of self-separating finned tube type heat exchanger for air conditioner,, improve the heat exchange effect to solve the problem that the evaporimeter inner refrigerant is not fully utilized at the inhomogeneous heat exchange area that causes of each channel capacity; Adopt the fin that is in tilted layout along the windward side simultaneously, be beneficial to the timely drainage of condensate water or defrosting water, it is low, simple in structure to make it have a cost, the characteristics of good effect of heat exchange.
The objective of the invention is to be achieved through the following technical solutions:
A kind of self-separating finned tube type heat exchanger for air conditioner, it is characterized in that: this finned tube heat exchanger by upper header, lower collector pipe, be arranged on the communicating pipe and the tube connector that are arranged in parallel between the upper and lower collector and form, described communicating pipe and tube connector adopt with ribbing coiled pipe, be provided with described communicating pipe more than two or two, two two ends that are arranged in lower collector pipe wherein, every communicating pipe directly is communicated with upper header and lower collector pipe; The upper end of described tube connector directly is communicated with upper header, and the lower end is communicated with lower collector pipe and is deep in the liquid of lower collector pipe.
Fin of the present invention adopts and is in tilted layout along the windward side.
Feature of the present invention also is: the refrigerant inlet of heat exchanger and outlet are arranged on the homonymy of heat exchanger or are separately positioned on the both sides of heat exchanger.
The present invention compared with prior art has the following advantages and outstanding effect:
Self-separating finned tube type heat exchanger for air conditioner provided by the invention, when the gas-liquid two-phase cold-producing medium enters lower collector pipe, because the existence of communicating pipe, the gas phase at lower collector pipe two ends is communicated with, the stable of stable and gas-liquid interface can keep-up pressure, liquid phase in the lower collector pipe flows to upper header by tube connector, gas phase then flows to upper header by communicating pipe, be single-phase at the porch, lower end of communicating pipe and tube connector cold-producing medium like this, avoided gas-liquid two-phase to mix pressure and the liquid fluctuating that causes, solve the mobile uneven problem of each pipeline refrigeration agent in the evaporimeter, made heat exchange area all be utilized effectively, improved the heat exchange effect; The fin that the present invention adopts is in tilted layout along the windward side, helps the timely drainage of condensate water or defrosting water, has improved condensate water or frosting to the air-conditioning system Effect on Performance.
Description of drawings
Fig. 1 is a self-separating finned tube type heat exchanger for air conditioner structural representation provided by the invention.
Fig. 2 is the side view (A to) of Fig. 1.
The specific embodiment
Below in conjunction with accompanying drawing structure of the present invention and operation principle are described further.
Fig. 1 is a self-separating finned tube type heat exchanger for air conditioner structural representation provided by the invention.This heat exchanger by upper header 1, lower collector pipe 2, be arranged on the communicating pipe 3 and the tube connector 4 that are arranged in parallel between the upper and lower collector and form, described communicating pipe and tube connector adopt with ribbing coiled pipe, described communicating pipe 3 is provided with more than two or two, two two ends that are arranged in lower collector pipe wherein, every communicating pipe directly is communicated with upper header and lower collector pipe; The upper end of described tube connector 4 directly is communicated with upper header 1, and the lower end is communicated with lower collector pipe 2 and is deep in the liquid of lower collector pipe.Described fin 5 adopts and is in tilted layout along the windward side.The refrigerant inlet of this heat exchanger and outlet are arranged on the homonymy of heat exchanger or are separately positioned on the both sides of heat exchanger.
The automatic solution dividing structure that the present invention adopts can realize that gas-liquid two-phase separates automatically, and its principle is as follows:
When the gas-liquid two-phase cold-producing medium enters lower collector pipe 2, be laminar flow by two-phase flow pattern in the active pipe of gravity, promptly the upper strata is a gas phase, lower floor is a liquid phase, gas-liquid interface of middle existence; The existence of communicating pipe 3 is communicated with the gas phase at lower collector pipe 2 two ends, thereby keeps the stable of lower collector pipe pressure at two ends and gas-liquid interface; Gas phase flows to upper header 1 by communicating pipe 3, because tube connector 4 lower ends are goed deep in the liquid of lower collector pipe 2, liquid phase directly flows to upper header 1 by tube connector 4, has realized the automatic separation of gas-liquid.
The concrete course of work of this heat exchanger is as follows:
Under cooling condition, this heat exchanger is a condenser, and this moment, single-phase refrigerant superheat steam entered this heat exchanger from upper header 1.Because cold-producing medium is single-phase, can uniform distribution in each passage, flow to lower collector pipe 2 by communicating pipe 3 and tube connector 4, in this process, externally heat radiation is condensed into single-phase subcooled liquid during to lower collector pipe 2, flows out this heat exchanger.In this case, automatic solution dividing structure of the present invention does not play a role.
Under heating condition, the gas-liquid two-phase cold-producing medium enters heat exchanger from lower collector pipe 2, owing to adopted automatic solution dividing structure, gas-liquid two-phase is realized gas-liquid separation automatically in lower collector pipe 2, gas-liquid flows to upper header by communicating pipe 2 and tube connector 3 respectively mutually, from the outside heat absorption, constantly evaporate in this process, heat absorption becomes single-phase superheated vapor during to upper header 1.
The entrance and exit of this heat exchanger cold-producing medium can be arranged on the both sides of heat exchanger, also can be arranged in the homonymy of heat exchanger, and only having drawn among Fig. 1 is arranged in the situation of both sides, and solid line is a condensation process, and dotted line is an evaporation process.When import and export are arranged in the heat exchanger homonymy, the effect of assignment of traffic is good when being arranged in both sides, because can keep this moment tube connector 3 and communicating pipes 4 two ends pressure ratio more even, help the uniform distribution of cold-producing medium flow in each passage, also improve simultaneously the heat exchange effect.
The present invention not only can be used for various heat pump type air conditioners, also can be used for the occasion that other need air cooling heat exchanger.
Claims (3)
1. self-separating finned tube type heat exchanger for air conditioner, it is characterized in that: this finned tube heat exchanger by upper header (1), lower collector pipe (2), be arranged on the communicating pipe (3) and the tube connector (4) that are arranged in parallel between the upper and lower collector and form, described communicating pipe and tube connector adopt with ribbing coiled pipe, described communicating pipe (3) is provided with more than two or two, two two ends that are arranged in lower collector pipe wherein, every communicating pipe directly is communicated with upper header and lower collector pipe; The upper end of described tube connector (4) directly is communicated with upper header (1), and the lower end is communicated with lower collector pipe (2) and is deep in the liquid of lower collector pipe.
2. according to the described self-separating finned tube type heat exchanger for air conditioner of claim 1, it is characterized in that: described fin (5) adopts and is in tilted layout along the windward side.
3. according to the described self-separating finned tube type heat exchanger for air conditioner of claim 1, it is characterized in that: the refrigerant inlet of heat exchanger and outlet are arranged on the homonymy of heat exchanger or are separately positioned on the both sides of heat exchanger.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB2007100996031A CN100520230C (en) | 2007-05-25 | 2007-05-25 | Self-separating finned tube type heat exchanger for air conditioner |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB2007100996031A CN100520230C (en) | 2007-05-25 | 2007-05-25 | Self-separating finned tube type heat exchanger for air conditioner |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN101055138A CN101055138A (en) | 2007-10-17 |
| CN100520230C true CN100520230C (en) | 2009-07-29 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNB2007100996031A Active CN100520230C (en) | 2007-05-25 | 2007-05-25 | Self-separating finned tube type heat exchanger for air conditioner |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN100520230C (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107044744A (en) * | 2017-01-10 | 2017-08-15 | 美的集团武汉制冷设备有限公司 | Parallel-flow heat exchanger and the air conditioner with it |
Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4874035A (en) * | 1987-11-17 | 1989-10-17 | Shinwa Sangyo Co., Ltd. | Heat exchanger for cooling tower |
-
2007
- 2007-05-25 CN CNB2007100996031A patent/CN100520230C/en active Active
Patent Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4874035A (en) * | 1987-11-17 | 1989-10-17 | Shinwa Sangyo Co., Ltd. | Heat exchanger for cooling tower |
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| Publication number | Publication date |
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| CN101055138A (en) | 2007-10-17 |
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Owner name: QINGHUA UNIVERSITY; APPLICANT Free format text: FORMER OWNER: QINGHUA UNIVERSITY Effective date: 20080111 |
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Effective date of registration: 20080111 Address after: Beijing 100084 mailbox 82 cent box Tsinghua University Patent Office postcode: 100084 Applicant after: Tsinghua University Co-applicant after: Beijing University of Technology Address before: Beijing 100084 mailbox 82 cent box Tsinghua University Patent Office postcode: 100084 Applicant before: Tsinghua University |
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