CN206875775U - Outdoor unit defrosting device - Google Patents
Outdoor unit defrosting device Download PDFInfo
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- CN206875775U CN206875775U CN201720769831.4U CN201720769831U CN206875775U CN 206875775 U CN206875775 U CN 206875775U CN 201720769831 U CN201720769831 U CN 201720769831U CN 206875775 U CN206875775 U CN 206875775U
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- heat exchanger
- outdoor
- outdoor heat
- defrost
- icing fluid
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Abstract
The utility model discloses a kind of outdoor unit defrosting device, including compressor, indoor heat exchanger, indoor fan, outdoor heat exchanger, outdoor fan, the outdoor heat exchanger has fin, air quantity flowmeter is provided between two adjacent fins, the air quantity flowmeter connects controller, the outdoor heat exchanger top is provided with anti-icing fluid spray equipment, the outdoor heat exchanger bottom is provided with water receiving tank, circulation line is connected between the anti-icing fluid spray equipment and water receiving tank, circulating pump and magnetic valve are connected with the circulation line, the controller connects the circulating pump and magnetic valve, to according to the keying by circulating pump described in the Boiler pressure control of fin and magnetic valve.The utility model realizes cold defrost using anti-icing fluid, also using the unlatching of air quantity flow rate test control defrosting function, white defrost, the frostless intelligent control effect do not changed are can reach, solves the existing air-conditioning timing defrost unreasonable problem such as cause power wastage, indoor temperature fluctuation big.
Description
Technical field
Air conditioner controlling technology field is the utility model is related to, is related to a kind of outdoor unit defrosting device.
Background technology
When the outer temperature difference is larger indoors, especially in the winter time, the easy frosting of outdoor unit of air-conditioning even freezes, due to air-conditioning
Heating effect is influenceed especially greatly by environment temperature, humidity, and outdoor temperature is lower, and the heating effect of unit is poorer, especially outdoor
After the surface frosting of set heat exchange device, heat exchange property deteriorate, heating effect will decline to a great extent, also more power-consuming, this just need into
Row defrosting, otherwise outdoor unit the more will be tied the more thick, or even outer machine is shut, and cause to heat.
Existing air-conditioning defrost is use to be less than subzero 8 DEG C and heating operation time with outdoor heat exchanger surface temperature and reach mostly
Start defrosting function at 45 minutes, it is to face outdoor heat exchanger by original evaporator operation pattern using four-way reversing valve commutation
When be converted into condenser working pattern, using compressor discharge high-temperature high-pressure refrigerant steam condensation heat realize outdoor is changed
The defrosting on hot device surface.
As shown in figure 1, the operation principle of existing heat exchanger defrosting device is：The high-pressure outlet and four-way valve of compressor 1 '
2 ' first interface a is communicated, and the second interface b of four-way valve 2 ' communicates with one end of outdoor heat exchanger 5, outdoor heat exchanger 5 it is another
One end connects expansion valve 7 ', and the other end of expansion valve 7 ' connects with one end of indoor heat exchanger 3 ', indoor heat exchanger 3 ' it is another
End communicates with the 4th interface d of four-way valve 2 ', and the 3rd interface c of four-way valve 2 ' is connected with the low-pressure inlet of compressor 1 '.Making
In thermal process, the first interface a of four-way valve 2 ' and the 4th interface d are communicated, second interface b connects with the 3rd interface c, compressor
The high temperature and high pressure gas refrigerant of 1 ' outflow gets in the condensation of heat exchanger 3 ', room air is heated, liquid refrigerants is through swollen
Swollen valve 7 ' evaporates after depressurizing into outdoor heat exchanger 5, completes the process to room air heating.When the needs of outdoor heat exchanger 5 '
When white, the first interface a of four-way valve 2 ' is connected with second interface b, the 3rd interface c and the 4th interface d are connected, and compressor 1 ' flows
The high temperature and high pressure gas refrigerant gone out is condensed into outdoor heat exchanger 5 ', and defrost is carried out to outdoor heat exchanger 5 '.
Problems be present in this simple defrost pattern of design：After reaching setting time, though frost layer is not enough to influence
Heating effect, even without frost layer, but because the coil pipe Guan Wenguan temperature of outdoor heat exchanger 5 ' reaches design temperature, unit is carried out immediately
Defrost, which results in the energy dissipation that air-conditioning is brought by the increase of defrost number, so as to cause heating performance to decline, according to survey
Calculate, because the thermal loss that defrost is brought by mistake is up to more than 20%.
The patent document of Application No. 201320428282.6 discloses a kind of air-conditioning auxiliary defrosting device, and it includes compression
Machine, four-way valve, refrigerant pipe and heat exchange fin, the refrigerant pipe are interspersed between heat exchange fin, a free end of the refrigerant pipe
The compressor is connected to by four-way valve, another free end is connected with air-conditioning internal machine, in addition to the heat exchange equipped with conduction oil
Unit and heat-transfer pipe, heat-transfer pipe are interspersed between the heat exchange fin.The technology outside compressor by setting heat exchange unit
With heat-transfer pipe by heat transfer caused by compressor operating to heat exchange fin, so that auxiliary defrost is carried out to air-conditioning, although
Air-conditioning heating efficiency is improved, but when outdoor temperature is too low, heat exchange unit can not absorb enough heats, and defrost effect is not
It is good.
The content of the invention
Main purpose of the present utility model is to propose a kind of outdoor unit defrosting device, it is intended to solves existing outdoor unit defrost
Device is using timing defrost or constant temperature defrost defrost time is long, power consumption is big and insecure problem.
To achieve the above object, the utility model proposes outdoor unit defrosting device include compressor, indoor heat exchanger, room
Inner blower, outdoor heat exchanger, outdoor fan, it is characterised in that the outdoor heat exchanger has a fin, between two adjacent fins
Provided with air quantity flowmeter, the air quantity flowmeter connects controller, and the outdoor heat exchanger top is provided with anti-icing fluid spray equipment,
The outdoor heat exchanger bottom is provided with water receiving tank, is connected with circulation line between the anti-icing fluid spray equipment and water receiving tank, institute
State and circulating pump and magnetic valve are connected with circulation line, the controller connects the circulating pump and magnetic valve, to according to logical
Cross the keying of circulating pump described in the Boiler pressure control of fin and magnetic valve.
Preferably, the anti-icing fluid uses propane diols or glycerin solution or hot water.
Further, the fin is provided with nano coating.
Preferably, the material of the nano coating includes styrol copolymer, ethylene glycol monobutyl ether, nano-silver ionic, received
Rice titanium dioxide.
Further, the coil inlet connection compressor of the outdoor heat exchanger, the coil outlets of outdoor heat exchanger pass through
Expansion valve connects indoor heat exchanger.
Compared with prior art, the beneficial effect of technical solutions of the utility model：
The utility model realizes cold defrost using anti-icing fluid, and when frostless or frost layer is relatively thin, wind flow is larger, now controls
The air quantity that device detects according to air quantity flowmeter, the control present apparatus is in not defrost state, when the outdoor heat exchanger frosting is arrived
When to a certain degree, just gradually decreased by the air quantity between fin, the controller control input defrost signal, into defrost shape
State：The controller control circulating pump and magnetic valve are opened, and anti-icing fluid is sprayed from anti-icing fluid spray equipment to outdoor heat exchanger, real
Existing defrost.Defrosting method compared to existing timing or constant temperature is that time is up with regard to defrost or temperature according to defrost cycle set
It is raised to and exits design temperature and just exit, cause that the defrost time is longer, power consumption is larger, is also easily in the presence of not having white defrost,
The utility model can reach white defrost, the frostless intelligence control do not changed using the unlatching of air quantity flow rate test control defrosting function
Effect processed, solves the existing air-conditioning timing defrost unreasonable problem such as cause power wastage, indoor temperature fluctuation big.Meanwhile this reality
Cold defrost is also realized using anti-icing fluid with new, cold defrost need not commutate, and heating does not interrupt, and cold defrost improves influence
The service life of outdoor heat exchanger, is more saved, and overcoming four-way reversing valve and frequently commutating easily causes the risk of interior leakage, improves
The reliability and durability of outdoor unit.
Brief description of the drawings
, below will be to embodiment in order to illustrate more clearly of the utility model embodiment or technical scheme of the prior art
Or the required accompanying drawing used is briefly described in description of the prior art, it should be apparent that, drawings in the following description are only
It is some embodiments of the utility model, for those of ordinary skill in the art, is not paying the premise of creative work
Under, other accompanying drawings can also be obtained according to the structure shown in these accompanying drawings.
Fig. 1 is the fundamental diagram of heat exchanger defrosting device in background technology；
The fundamental diagram for the heat exchanger defrosting device that the embodiment of Fig. 2 the utility model one proposes.
Drawing reference numeral explanation in background technology：
| Label | Title | Label | Title |
| 1’ | Compressor | 5’ | Outdoor heat exchanger |
| 2’ | Four-way valve | 6’ | Outdoor fan |
| 3’ | Indoor heat exchanger | 7’ | Expansion valve |
| 4’ | Indoor fan |
Drawing reference numeral explanation of the present utility model：
Realization, functional characteristics and the advantage of the utility model purpose will be described further referring to the drawings in conjunction with the embodiments.
Embodiment
Below in conjunction with the accompanying drawing in the utility model embodiment, the technical scheme in the embodiment of the utility model is carried out
Clearly and completely describing, it is clear that described embodiment is only part of the embodiment of the present utility model, rather than all
Embodiment.Based on the embodiment in the utility model, those of ordinary skill in the art are not making creative work premise
Lower obtained every other embodiment, belong to the scope of the utility model protection.
It is to be appreciated that the directional instruction (such as up, down, left, right, before and after ...) of institute in the utility model embodiment
It is only used for explaining relative position relation under a certain particular pose (as shown in drawings) between each part, motion conditions etc., such as
When the fruit particular pose changes, then directionality instruction also correspondingly changes therewith.
In addition, and it can not be managed in the utility model such as relating to the description of " first ", " second " etc. is only used for describing purpose
Solve to indicate or implying its relative importance or the implicit quantity for indicating indicated technical characteristic.Thus, define " the
One ", at least one this feature can be expressed or be implicitly included to the feature of " second ".It is " more in description of the present utility model
It is individual " it is meant that at least two, such as two, three etc., unless otherwise specifically defined.
In the utility model, unless otherwise clearly defined and limited, term " connection ", " fixation " etc. should do broad sense reason
Solution, for example, " fixation " can be fixedly connected or be detachably connected, or integrally；Can mechanically connect, also may be used
Be electrical connection；Can be joined directly together, can also be indirectly connected by intermediary, can be the connection of two element internals
Or the interaction relationship of two elements, limited unless otherwise clear and definite.For the ordinary skill in the art, can be with
Concrete meaning of the above-mentioned term in the utility model is understood as the case may be.
In addition, the technical scheme between each embodiment of the utility model can be combined with each other, but must be with ability
Domain those of ordinary skill can be implemented as basis, will be understood that when the combination appearance of technical scheme is conflicting or can not realize
The combination of this technical scheme is not present, also not within the protection domain of the requires of the utility model.
The utility model proposes a kind of outdoor unit defrosting device.
The fundamental diagram for the heat exchanger defrosting device that the embodiment of Fig. 2 the utility model one proposes.
Referring to Fig. 2, outdoor unit defrosting device includes compressor 1, indoor heat exchanger 2, indoor fan 3, outdoor heat exchanger
4th, outdoor fan 5, the outdoor heat exchanger 4 have fin 7, air quantity flowmeter 8, the wind are provided between two adjacent fins 7
Measure flowmeter 8 and connect controller, the top of outdoor heat exchanger 4 is provided with anti-icing fluid spray equipment 9, the bottom of outdoor heat exchanger 4
Portion is provided with water receiving tank 10, and circulation line 11, the circulation line are connected between the anti-icing fluid spray equipment 9 and water receiving tank 10
On be connected with circulating pump 12 and magnetic valve 13, the controller connects the circulating pump 12 and magnetic valve 13, to according to passing through
The keying of circulating pump 12 and magnetic valve 13 described in the Boiler pressure control of fin 7.
The outdoor unit defrosting device realizes cold defrost using anti-icing fluid, after starting of air conditioner heats, what compressor 1 flowed out
High temperature and high pressure gas refrigerant gets in heat exchanger 1 and condensed, and room air is heated, and the expanded valve 6 of liquid refrigerants depressurizes
Evaporated afterwards into outdoor heat exchanger 4, complete the process to room air heating.Wind is from air quantity flow between outdoor heat exchanger fin
Meter 8 is by the way that because now frostless or frost layer is relatively thin, air mass flow is big, and controller control disconnects defrost signal, in not defrost shape
State, when the outdoor heat exchanger frosting to a certain extent when, just gradually decreased by the air quantity between fin, the controller control
System input defrost signal, into defrost state：The controller control circulating pump 12 and magnetic valve 13 are opened, and are sprayed by anti-icing fluid
Device 9 sprays anti-icing fluid to outdoor heat exchanger 4, realizes defrost.Defrosting method compared to existing timing or constant temperature is basis
Time is up is raised to regard to defrost or temperature and exits design temperature and just exit for defrost cycle set, causes that the defrost time is longer, power consumption
Measure larger, be also easily in the presence of not having white defrost, the utility model using air quantity flow rate test control defrosting function unlatching,
White defrost, the frostless intelligent control effect do not changed are can reach, existing air-conditioning timing defrost is solved and causes power wastage, room
Temperature fluctuates the unreasonable problem such as big.Meanwhile the utility model also realizes cold defrost using anti-icing fluid, cold defrost need not commutate,
Heating does not interrupt, and cold defrost improves the service life for influenceing outdoor heat exchanger, more saves, overcomes four-way reversing valve
Frequently commutation easily causes the risk of interior leakage, improves the reliability and durability of outdoor unit.
Further, anti-icing fluid using propane diols or glycerin solution or heats water in the anti-icing fluid spray equipment.
Anti-icing fluid is corrosion-free used in the utility model, and to environment without any pollution.Make outdoor heat exchanger using anti-icing fluid
Surface frost layer is melted or peeled off, and not only defrosting effect is good, and economic and reliable.
Further, the fin 7 is provided with nano coating.
Further, the material of the nano coating include styrol copolymer, ethylene glycol monobutyl ether, nano-silver ionic,
Nano titanium oxide.
Nano coating has following performance：1st, anti-corrosive properties, heat exchanger surface can be protected from corrosion；2nd, super-hydrophobicity,
Nano coating is formed by spraying coating process or soaking technology, and hydrophobic molecule can come the surface of coating, allows surface function very little,
Make outflow velocity very fast, so as to reach super-hydrophobic performance, long-acting super-hydrophobic surface can improve condensation well, lead to
Cross the discharge for accelerating to condense and reach defrosting effect, and then improve the heat exchange of outdoor exchanger 4.3rd, reduce mouldy and grow thin
Bacterium so that heat exchanger keeps clean and dried, more energy efficient compared to wet dirty heat exchanger.
Further, the coil inlet connection compressor 1 of the outdoor heat exchanger 4, the coil outlets of outdoor heat exchanger lead to
Cross expansion valve connection indoor heat exchanger 2.
Preferred embodiment of the present utility model is the foregoing is only, not thereby limits the scope of the claims of the present utility model,
Every equivalent structure change under inventive concept of the present utility model, made using the utility model specification and accompanying drawing content
Change, or directly/be used in other related technical areas indirectly and be included in scope of patent protection of the present utility model.
Claims (5)
1. a kind of outdoor unit defrosting device, including compressor, indoor heat exchanger, indoor fan, outdoor heat exchanger, outdoor fan,
Characterized in that, the outdoor heat exchanger has fin, air quantity flowmeter, the air quantity flow are provided between two adjacent fins
Meter connection controller, the outdoor heat exchanger top are provided with anti-icing fluid spray equipment, and the outdoor heat exchanger bottom is provided with water receiving
Groove, circulation line is connected between the anti-icing fluid spray equipment and water receiving tank, be connected with the circulation line circulating pump and
Magnetic valve, the controller connect the circulating pump and magnetic valve, pass through circulating pump described in the Boiler pressure control of fin to basis
With the keying of magnetic valve.
2. outdoor unit defrosting device as claimed in claim 1, it is characterised in that anti-icing fluid is adopted in the anti-icing fluid spray equipment
With aqueous solution of propylene glycol or glycerin solution or hot water.
3. outdoor unit defrosting device as claimed in claim 1, it is characterised in that the fin is provided with nano coating.
4. outdoor unit defrosting device as claimed in claim 3, it is characterised in that the material of the nano coating includes styrene
Copolymer, ethylene glycol monobutyl ether, nano-silver ionic, nano titanium oxide.
5. outdoor unit defrosting device as claimed in claim 3, it is characterised in that the coil inlet connection of the outdoor heat exchanger
Compressor, the coil outlets of outdoor heat exchanger connect indoor heat exchanger by expansion valve.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720769831.4U CN206875775U (en) | 2017-06-29 | 2017-06-29 | Outdoor unit defrosting device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720769831.4U CN206875775U (en) | 2017-06-29 | 2017-06-29 | Outdoor unit defrosting device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN206875775U true CN206875775U (en) | 2018-01-12 |
Family
ID=61330625
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201720769831.4U Active CN206875775U (en) | 2017-06-29 | 2017-06-29 | Outdoor unit defrosting device |
Country Status (1)
| Country | Link |
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| CN (1) | CN206875775U (en) |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108344066A (en) * | 2018-04-04 | 2018-07-31 | 陕西建工安装集团有限公司 | A kind of multi-online air-conditioning system outdoor machine defrosting device |
| CN108426345A (en) * | 2018-04-04 | 2018-08-21 | 陕西建工安装集团有限公司 | A kind of multi-connected machine outdoor unit defrosting control system and method |
| CN110873505A (en) * | 2018-08-29 | 2020-03-10 | 江苏美力格环境科技有限公司 | Automatic spraying device for air energy equipment |
| CN110906481A (en) * | 2019-12-05 | 2020-03-24 | 浙江大学 | Heat pump system using evaporative cooling |
| CN111811143A (en) * | 2020-08-20 | 2020-10-23 | 广东瑞星新能源科技有限公司 | Integrated heat pump water heater with low-temperature storage box |
| CN114543264A (en) * | 2022-01-24 | 2022-05-27 | 青岛海尔空调器有限总公司 | Air conditioner and defrosting control method thereof |
-
2017
- 2017-06-29 CN CN201720769831.4U patent/CN206875775U/en active Active
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108344066A (en) * | 2018-04-04 | 2018-07-31 | 陕西建工安装集团有限公司 | A kind of multi-online air-conditioning system outdoor machine defrosting device |
| CN108426345A (en) * | 2018-04-04 | 2018-08-21 | 陕西建工安装集团有限公司 | A kind of multi-connected machine outdoor unit defrosting control system and method |
| CN110873505A (en) * | 2018-08-29 | 2020-03-10 | 江苏美力格环境科技有限公司 | Automatic spraying device for air energy equipment |
| CN110906481A (en) * | 2019-12-05 | 2020-03-24 | 浙江大学 | Heat pump system using evaporative cooling |
| CN110906481B (en) * | 2019-12-05 | 2021-09-17 | 浙江大学 | Heat pump system using evaporative cooling |
| CN111811143A (en) * | 2020-08-20 | 2020-10-23 | 广东瑞星新能源科技有限公司 | Integrated heat pump water heater with low-temperature storage box |
| CN114543264A (en) * | 2022-01-24 | 2022-05-27 | 青岛海尔空调器有限总公司 | Air conditioner and defrosting control method thereof |
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