CN203629422U - Anti-frosting heat exchanger and air conditioner - Google Patents
Anti-frosting heat exchanger and air conditioner Download PDFInfo
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- CN203629422U CN203629422U CN201320441384.1U CN201320441384U CN203629422U CN 203629422 U CN203629422 U CN 203629422U CN 201320441384 U CN201320441384 U CN 201320441384U CN 203629422 U CN203629422 U CN 203629422U
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Abstract
The utility model discloses an anti-frosting heat exchanger and an air conditioner. The surfaces of the fins of the heat exchanger are respectively coated with an anti-frost coating for reducing the adhesion force between the surfaces of the fins and an external frost layer. The coating contains a plurality of temperature-sensitive microsphere particles configured to release and recover micro-molecule substances wrapped in the hollow cavities of the microsphere particles according to the external temperature. According to the technical scheme of the utility model, the adhesion and the growth of a frost layer on the surfaces of the fins can be prevented or reduced, so that the anti-frosting performance of the heat exchanger is improved. In addition, the microsphere structure of the coating is changed and recovered repeatedly according to the temperature change. Therefore, by means of the coating, the anti-frosting effect is realized for a long time, so that the long-acting energy-saving purpose is realized.
Description
Technical field
The utility model relates to air-conditioning technical field, relates in particular to a kind of antifrost heat exchanger and air-conditioner.
Background technology
Conventionally,, in the time that airborne steam touches temperature lower than air dew point temperature surperficial, will undergo phase transition frosting.In air-conditioner field, in the time that air-conditioning heat pump low-temperature heating moves, on outer machine heat exchanger, often there is frost, the existence of frost layer can increase heat exchange thermal resistance, reduces heat transfer coefficient, thereby reduces heating performance and the efficiency of air-conditioning.
At present, for reducing the impact of frosting on systematic function, the method conventionally adopting comprises: use hydrophilic coating to delay frosting at heat exchanger fin, and heat exchanger heats defrost.Wherein:
Heat exchanger fin uses hydrophilic coating, can make, under fin surface condensed water Rapid Flow, to delay the time of frosting, but the hydrophilic coating of prior art only has certain influence to the frosting initial stage, therefore there is limitation in its antifrost effect, also needs to heat defrost after frosting.
Heat exchanger heating defrost mainly utilizes the HTHP refrigerant of compressor output to realize by heat exchanger, but this mode can reduce heating capacity or make air-conditioner stop heating in the time of defrost, thereby causes indoor heat output minimizing, system energy efficiency to reduce.
Utility model content
Main purpose of the present utility model is to provide a kind of antifrost heat exchanger and air-conditioner, is intended to improve the antifrost performance of heat exchanger, reduces air-conditioning system efficiency.
In order to achieve the above object, the utility model proposes a kind of antifrost heat exchanger, described heat exchanger fin surface is coated with the antifrost coating for reducing the adhesion of fin surface and outside frost layer.
Preferably, in described coating, have microsphere particle, described microsphere particle is polymeric hollow microsphere particle.
Preferably, described microsphere particle has temperature sensitivity, can be wrapped in the small-molecule substance in its hollow cavity according to ambient temperature release.
Preferably, described fin is aluminium fin, and the antifrost coating that the surface of described fin applies is acrylate type coating or polyurethane-modified polyacrylate type coating.
Preferably, described microsphere particle is the compound being polymerized by different proportion by monomers such as acrylamide, acrylic acid, esters of acrylic acid, styrene, acrylonitrile.
Preferably, described small-molecule substance is low mass molecule alcohol or alkane oil compound.
The utility model also proposes a kind of air-conditioner, comprises antifrost heat exchanger as above.
A kind of antifrost heat exchanger and the air-conditioner that the utility model proposes, apply the antifrost coating for reducing the adhesion of heat exchanger surface and outside frost layer by the fin surface at heat exchanger, this antifrost coating is acrylate type coating or polyurethane-modified polyacrylate type coating, can prevent or reduce adhesion and the growth of frost layer at fin surface, reach with this object that improves heat exchanger antifrost performance; In this external coating, micro-sphere structure changes the change occurring and recovers to repeat according to ambient temperature, and therefore this coating has the ability of long-term antifrost, thereby reaches the object of long-acting energy-saving.
Accompanying drawing explanation
Fig. 1 is the fin of the utility model antifrost heat exchanger preferred embodiment structural representation below zero degrees celsius time;
Fig. 2 is the fin of the utility model antifrost heat exchanger preferred embodiment structural representation in the time that zero degrees celsius is above.
In order to make the technical solution of the utility model clearer, clear, be described in further detail below in conjunction with accompanying drawing.
The specific embodiment
Should be appreciated that specific embodiment described herein is only in order to explain the utility model, and be not used in restriction the utility model.
As shown in Figures 1 and 2, the utility model preferred embodiment proposes a kind of antifrost heat exchanger, described heat exchanger has some fins 1, be coated with antifrost coating 2 on the surface of the fin 1 of described heat exchanger, this antifrost coating 2 is for reducing the adhesion of heat exchanger surface and outside frost layer, to prevent or to reduce adhesion and the growth of frost layer on fin 1 surface, reach with this object that improves heat exchanger antifrost performance.
Particularly, the present embodiment fin 1 specifically can adopt aluminium fin.
As a kind of embodiment, the antifrost coating 2 that the surface of described fin 1 applies can be esters of acrylic acid coating or polyurethane-modified polyacrylate type coating, in the time of technological forming, formed by esters of acrylic acid or polyurethane-modified polyacrylate class paint solidification, therefore there is good hydrophily.
In this coating 2, contain a large amount of microsphere particles 3 that wrap up small-molecule substance 4, this microsphere particle 3 is polymeric hollow microsphere particle, specifically can acrylamide, the monomer such as acrylic acid, esters of acrylic acid, styrene, acrylonitrile is polymerized by different proportion, it has temperature sensitivity, when fin 1 coating 2 temperature are lower than design temperature during such as zero degrees celsius, this microsphere particle 3 can be adjusted internal structure, discharge small-molecule substance 4 and make it to invest coating 2 surfaces (referring to Fig. 1), small-molecule substance 4 is mainly low mass molecule alcohol and alkane oil.Therefore, when air-conditioning low-temperature heating operation and outside machine heat exchanger fin 1 surface temperature during lower than zero degrees celsius, due to the small-molecule substance 4 of fin 1 surface attachment, can reduce and prevent adhere to of frost layer, thereby improve the antifrost performance of heat exchanger.
In addition,, when coating 2 temperature are during higher than zero degrees celsius, the microsphere particle 3 in coating 2 can recover internal structures, and makes part small-molecule substance 4 reenter (referring to Fig. 2) in microsphere particle 3.Therefore,, when coating 2 temperature are in the time that zero degrees celsius changes up and down, in this coating 2, the change of microsphere particle 3 internal structures can repeat with recovery.
Compared to existing technology, the utility model has the advantage of: because heat exchanger fin 1 coating 2 surfaces are coated with the coating 2 that can reduce heat exchanger fin 1 surface and the adhesion of frost layer, can initiatively reduce and prevent adhere to and growth of frost layer, contrast common air-conditioning device, energy loss in the degradation of heat exchange performance that uses the air-conditioning of the present embodiment heat exchanger can reduce to cause because of frosting and defrost process, reaches the object of raising air-conditioning heating performance and efficiency level.
In addition, because microsphere particle 3 in this coating 2 has temperature sensitivity, can be according to coating 2 temperature the release from main regulation microsphere particle 3 internal structure small molecular materials 4, make the microsphere particle 3 small molecular materials 4 can be in the time that zero degrees celsius is above in microsphere particle 3, zero degrees celsius discharges small-molecule substance 4 when following makes it to invest coating 2 surfaces, the change that in coating 2, micro-sphere structure occurs according to variations in temperature can be repeated with recovery, therefore this coating 2 has the ability of long-term antifrost, thereby reaches the object of long-acting energy-saving.
Be respectively acrylate type coating 2 with heat exchanger fin 1 coating 2 below and polyurethane-modified polyacrylate type coating 2 is described in detail the antifrost principle of the present embodiment:
Example 1(heat exchanger fin 1 coating 3 is acrylate type coating):
Heat exchanger adopts aluminium fin 1, surface is coated with hydrophilic acrylate type coating 2, in this coating 2, contain a large amount of polymeric hollow microsphere particles 3 that wrap up small-molecule substance 4, this microsphere particle 3 is polymerized by acrylamide, styrene, acrylonitrile monemer, there is temperature sensitivity, when fin 1 coating 2 temperature are during lower than zero degrees celsius, this microsphere particle 3 can be adjusted structure, discharge small-molecule substance 4 and make it to invest coating 2 surfaces (referring to Fig. 1), small-molecule substance 4 is mainly alcohol and alkane oil, can reduce and prevent frost layer adhering on fin 1 surface.Therefore, when air-conditioning low-temperature heating operation and outside machine heat exchanger fin 1 surface temperature during lower than zero degrees celsius, due to the small-molecule substance 4 of fin 1 surface attachment, can reduce and prevent adhere to of frost layer.And when coating 2 temperature are during higher than zero degrees celsius, the microsphere particle 3 in coating 2 can recover structures, and make part small-molecule substance 4 reenter (referring to Fig. 2) in microsphere particle 3.
Example 2(heat exchanger fin 1 coating 2 is polyurethane-modified polyacrylate type coating):
Heat exchanger adopts aluminium fin 1, surface is coated with hydrophilic polyurethane-modified polyacrylate type coating 2, in this coating 2, contain a large amount of polymeric hollow microsphere particles 3 that wrap up small-molecule substance 4, this microsphere particle 3 is by acrylamide, esters of acrylic acid, styrene, acrylonitrile monemer is polymerized, there is temperature sensitivity, when fin 1 coating temperature is during lower than zero degrees celsius, this microsphere particle 3 can be adjusted structure, discharge small-molecule substance 4 and make it to invest coating 2 surfaces, small-molecule substance 4 is mainly alcohol and alkane oil, can reduce and prevent frost layer adhering on fin 1 surface.Therefore, when air-conditioning low-temperature heating operation and outside machine heat exchanger fin 1 surface temperature during lower than zero degrees celsius, due to the small-molecule substance 4 of fin 1 surface attachment, can reduce and prevent adhere to of frost layer.And when coating 2 temperature are during higher than zero degrees celsius, the microsphere particle 3 in coating 2 can recover structures, and make part small-molecule substance 4 reenter (referring to Fig. 2) in microsphere particle 3.
It should be noted that, in other embodiments, can also apply above-mentioned antifrost coating on other surfaces of heat exchanger, to improve the overall antifrost performance of heat exchanger.
In addition, the utility model embodiment also proposes a kind of air-conditioner, and the outdoor unit heat exchanger of this air-conditioner can adopt the antifrost heat exchanger described in above-described embodiment, and its antifrost principle, please refer to above-described embodiment, does not repeat them here.
The utility model embodiment antifrost heat exchanger and air-conditioner, apply the antifrost coating for reducing the adhesion of heat exchanger surface and outside frost layer by the fin surface at heat exchanger, in described coating, include some microsphere particles that there is temperature sensitivity, can be wrapped according to ambient temperature release the small-molecule substance in its hollow cavity, can prevent or reduce adhesion and the growth of frost layer at fin surface, reach with this object that improves heat exchanger antifrost performance; The change that in this external coating, micro-sphere structure occurs according to variations in temperature can repeat with recovery, and therefore this coating has the ability of long-term antifrost, thereby reaches the object of long-acting energy-saving.
Above are only preferred embodiment of the present utility model; not thereby limit the scope of the claims of the present utility model; every equivalent structure or flow process conversion that utilizes the utility model description and accompanying drawing content to do; or be directly or indirectly used in other relevant technical field, be all in like manner included in scope of patent protection of the present utility model.
Claims (3)
1. an antifrost heat exchanger, is characterized in that, described heat exchanger fin surface is coated with the antifrost coating for reducing the adhesion of fin surface and outside frost layer; The antifrost coating that the surface of described fin applies is acrylate type coating or polyurethane-modified polyacrylate type coating.
2. antifrost heat exchanger according to claim 1, is characterized in that, described fin is aluminium fin.
3. an air-conditioner, is characterized in that, comprises the antifrost heat exchanger described in any one in claim 1-2.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320441384.1U CN203629422U (en) | 2013-07-23 | 2013-07-23 | Anti-frosting heat exchanger and air conditioner |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320441384.1U CN203629422U (en) | 2013-07-23 | 2013-07-23 | Anti-frosting heat exchanger and air conditioner |
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| CN203629422U true CN203629422U (en) | 2014-06-04 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201320441384.1U Expired - Fee Related CN203629422U (en) | 2013-07-23 | 2013-07-23 | Anti-frosting heat exchanger and air conditioner |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108036658A (en) * | 2017-12-15 | 2018-05-15 | 青岛海尔智能技术研发有限公司 | Heat exchanger tube and heat exchanger and air conditioner and heat pump unit for falling-film heat exchanger |
| CN108168358A (en) * | 2017-12-27 | 2018-06-15 | 青岛海尔智能技术研发有限公司 | Fin-tube heat exchanger |
| CN109945553A (en) * | 2019-03-13 | 2019-06-28 | 广东美的制冷设备有限公司 | Heat exchanger and air conditioner |
| CN114659400A (en) * | 2022-03-24 | 2022-06-24 | 浙江大学 | Method for promoting shell-and-tube heat storage device to realize contact melting |
-
2013
- 2013-07-23 CN CN201320441384.1U patent/CN203629422U/en not_active Expired - Fee Related
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108036658A (en) * | 2017-12-15 | 2018-05-15 | 青岛海尔智能技术研发有限公司 | Heat exchanger tube and heat exchanger and air conditioner and heat pump unit for falling-film heat exchanger |
| CN108168358A (en) * | 2017-12-27 | 2018-06-15 | 青岛海尔智能技术研发有限公司 | Fin-tube heat exchanger |
| CN108168358B (en) * | 2017-12-27 | 2020-06-16 | 青岛海尔智能技术研发有限公司 | Finned tube type heat exchanger |
| CN109945553A (en) * | 2019-03-13 | 2019-06-28 | 广东美的制冷设备有限公司 | Heat exchanger and air conditioner |
| CN114659400A (en) * | 2022-03-24 | 2022-06-24 | 浙江大学 | Method for promoting shell-and-tube heat storage device to realize contact melting |
| CN114659400B (en) * | 2022-03-24 | 2023-03-14 | 浙江大学 | Method for promoting shell-and-tube heat storage device to realize contact melting |
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| C14 | Grant of patent or utility model | ||
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