CN203908108U - Wet-type frostless device of air source heat pump unit - Google Patents

Wet-type frostless device of air source heat pump unit Download PDF

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Publication number
CN203908108U
CN203908108U CN201420247766.5U CN201420247766U CN203908108U CN 203908108 U CN203908108 U CN 203908108U CN 201420247766 U CN201420247766 U CN 201420247766U CN 203908108 U CN203908108 U CN 203908108U
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China
Prior art keywords
heat pump
source heat
air
net
evaporator
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Active
Application number
CN201420247766.5U
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Chinese (zh)
Inventor
舒春林
袁正明
雷建华
黄曙东
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China Nerin Engineering Co Ltd
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China Nerin Engineering Co Ltd
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Priority to CN201420247766.5U priority Critical patent/CN203908108U/en
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Abstract

The utility model discloses a wet-type frostless device of an air source heat pump unit. A compressor, an evaporator, an expansion valve and a condenser are connected in a circulatory mounting manner through pipelines. Spray pipes are mounted on the windward side of the evaporator, a catch tray is mounted at the bottom of the evaporator, and a filter, a solution tank and a solution pump are sequentially connected between the outlet of the catch tray and the spray pipes. The wet-type frostless device is simple in system structure and low in energy consumption, continuous heat supply operation of the air source heat pump unit can be guaranteed, and when ethylene glycol solution 10% in concentration is adopted, the surface of the evaporator is frostless at the evaporating temperature of minus 10 degrees.

Description

Net for air-source heat pump units wet type frost-free means
Technical field
The utility model relates to that in heat pump, to adopt low-boiling point gas be compression machine, device or the system of cold-producing medium, particularly net for air-source heat pump units wet type frost-free means.
Background technology
Net for air-source heat pump units is to take the heat pump assembly that air is low level heat energy, conventionally there are the forms such as air/air heat pump and air/water heat pump, by parts such as compressor 1, evaporimeter 4, expansion valve 3 and condensers 2, form (as Fig. 1), adopt motorized motions, by heat-transfer working medium, absorb nature air Lowlevel thermal energy through compressor 1 evaporimeter 4, expansion valve 3 and condenser 2 circulations, be promoted to high level heat and be discharged in Interior Space G&W, realize heat supply object.Net for air-source heat pump units is widely used in air conditioning and hot water preparation system.Net for air-source heat pump units heat capacity is subject to outdoor air humiture parameter influence; with outdoor temperature, reduce and decline; when outdoor temperature is within the scope of-5 ~ 5 ℃ especially in the winter time; evaporating temperature is lower than 0 ℃; evaporimeter is often understood frosting; strengthen heat transfer resistance between working medium and air, affected unit normal operation.At present, the working medium conventionally adopting is according to parameters such as the surface temperature of heat exchanger and unit operation times against endless form defrosting, and Based Intelligent Control cross valve is reverse sends into the defrosting of evaporimeter HTHP working substance steam.
Against endless form defrosting, there is following defect in current Based Intelligent Control working medium: during defrosting work, system stops heat supply, cannot realize heat supply continuous service, affects heat capacity under unit actual condition when practical application, and defrosting power consumption is large.According to unit, periodically defrosting number of times is different, the overall heat capacity of unit 20% left and right that declines.
Utility model content
The purpose of this utility model is to provide a kind of net for air-source heat pump units wet type frost-free means, overcome Based Intelligent Control working medium and decline and the shortcoming of power consumption against endless form defrosting net for air-source heat pump units unit heat capacity when frosting and the defrosting, improve net for air-source heat pump units heat capacity.
For achieving the above object, the utility model is taked following technical scheme, net for air-source heat pump units wet type frost-free means, its compressor, evaporimeter, expansion valve and condenser are connected by pipeline cycle installation, injection spray pipe is installed in described evaporimeter windward side, base of evaporator is provided with catch tray, and being exported to of catch tray is connected with filter, liquor box and solution pump in turn between injection spray pipe.
Described liquor box is in-built corrosion-free anti-freezing solution.
Described corrosion-free anti-freezing solution is ethylene glycol solution.
The concentration of described ethylene glycol solution is 10%.
The utility model utilizes ethylene glycol solution etc. to spray to evaporator surface, in evaporator air side, form thin liquid film, moisture in trap chamber outer air, directly directly contacting heat release with the heat exchange fin of evaporimeter forms frost to avoid moisture in air, form outdoor air and the frostless heat exchanging process of working medium, guarantee that net for air-source heat pump units continues to heat circular flow.
Its system architecture of the utility model net for air-source heat pump units wet type frost-free means is simple, it is little to consume energy, can guarantee that net for air-source heat pump units continues heat supply running, while adopting the ethylene glycol solution of concentration 10%, in the time of can realizing in evaporating temperature-10 ℃, evaporator surface is without frosting.
Accompanying drawing explanation
Fig. 1 is the structural representation of existing Intelligent defrosting net for air-source heat pump units.
Fig. 2 is the structural representation of the utility model net for air-source heat pump units wet type frost-free means.
In figure: 1. compressor, 2. condenser, 3. expansion valve, 4. evaporimeter, 5. liquor box, 6. filter, 7. solution pump, 8. injection spray pipe, 9. catch tray.
The specific embodiment
Below in conjunction with drawings and Examples, the utility model is described in further detail, referring to Fig. 2, net for air-source heat pump units wet type frost-free means, its compressor 1, evaporimeter 4, expansion valve 3 and condenser 2 are connected by pipeline cycle installation, injection spray pipe 8 is installed in described evaporimeter 4 windward sides, evaporimeter 4 bottoms are provided with catch tray 9, and being exported to of catch tray 9 is connected with filter 6, liquor box 5 and solution pump 7 in turn between injection spray pipe 8.
embodiment:the utility model adopts 10% ethylene glycol solution; Net for air-source heat pump units wet type frost-free means also can be used other corrosion-free anti-freezing solution.
Net for air-source heat pump units wet type frost-free means of the present utility model,, in existing net for air-source heat pump units evaporimeter 4 windward sides, injection spray pipe 8 is installed, in evaporimeter 4 bottoms, catch tray 9 is installed, adopt 10% ethylene glycol solution from liquor box 5 through solution pump 7 and injection spray pipe 8 to evaporimeter 4 surface spray windward, on evaporimeter 4 surfaces, form liquid film, liquid film comes together in the catch tray 9 of evaporimeter 4 bottoms downwards, then turns back to liquor box 5 through filter 6, forms circulation frostless work loop.

Claims (3)

1. net for air-source heat pump units wet type frost-free means, its compressor, evaporimeter, expansion valve and condenser are connected by pipeline cycle installation, it is characterized in that, injection spray pipe is installed in described evaporimeter windward side, base of evaporator is provided with catch tray, and being exported to of catch tray is connected with filter, liquor box and solution pump in turn between injection spray pipe.
2. net for air-source heat pump units wet type frost-free means according to claim 1, is characterized in that, described liquor box is in-built corrosion-free anti-freezing solution.
3. net for air-source heat pump units wet type frost-free means according to claim 2, is characterized in that, described corrosion-free anti-freezing solution is ethylene glycol solution.
CN201420247766.5U 2014-05-15 2014-05-15 Wet-type frostless device of air source heat pump unit Active CN203908108U (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201420247766.5U CN203908108U (en) 2014-05-15 2014-05-15 Wet-type frostless device of air source heat pump unit

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN201420247766.5U CN203908108U (en) 2014-05-15 2014-05-15 Wet-type frostless device of air source heat pump unit

Publications (1)

Publication Number Publication Date
CN203908108U true CN203908108U (en) 2014-10-29

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Family Applications (1)

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CN201420247766.5U Active CN203908108U (en) 2014-05-15 2014-05-15 Wet-type frostless device of air source heat pump unit

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Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN105299954A (en) * 2015-11-25 2016-02-03 北京华宏环能科技有限公司 Air source heat pump device free from defrosting and capable of outputting cold or hot water

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN105299954A (en) * 2015-11-25 2016-02-03 北京华宏环能科技有限公司 Air source heat pump device free from defrosting and capable of outputting cold or hot water

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