阅读说明：本技术 一种空气热源泵除霜装置及方法 (A kind of air heat source pump defroster and method ) 是由 陈永杰 刘峰 *** 于 2019-09-16 设计创作，主要内容包括：本发明公开了一种空气热源泵除霜装置及方法,属于空气热源泵技术领域。一种空气热源泵除霜装置,包括压缩机、水冷式冷凝器、蒸发器、第一节流阀、电机风扇,所述压缩机、水冷式冷凝器、第一节流阀、蒸发器依次相连,所述电机风扇与蒸发器相匹配,还包括辅热器、过热储液装置,所述水冷式冷凝器上设有进水口、出水口,所述过热储液装置与水冷式冷凝器相连,所述过热储液装置与蒸发器通过第二节流阀相连,所述辅热器位于水冷式冷凝器与蒸发器之间,所述第一节流阀、第二节流阀、蒸发器均与辅热器相匹配；本发明能够对空气热源泵上的蒸发器上的霜进行预防及清除,预防及清除效果好,提高了整个系统的高效、稳定的运行。(The invention discloses a kind of air heat source pump defroster and methods, belong to air heat source pump technical field.A kind of air heat source pump defroster, including compressor, water cooled condenser, evaporator, first throttle valve, electric motor fan, the compressor, water cooled condenser, first throttle valve, evaporator is sequentially connected, the electric motor fan matches with evaporator, it further include auxiliary heating apparatus, overheat device for storing liquid, the water cooled condenser is equipped with water inlet, water outlet, the overheat device for storing liquid is connected with water cooled condenser, the overheat device for storing liquid is connected with evaporator by second throttle, the auxiliary heating apparatus is between water cooled condenser and evaporator, the first throttle valve, second throttle, evaporator matches with auxiliary heating apparatus；The frost on evaporator that the present invention can pump air heat source prevents and removes, and prevention and elimination effect are good, improve efficient, the stable operation of whole system.)

1. a kind of air heat source pumps defroster, including compressor (1), water cooled condenser (2), evaporator (4), first throttle Valve (3), electric motor fan (5), the compressor (1), water cooled condenser (2), first throttle valve (3), evaporator (4) successively phase Even, the electric motor fan (5) matches with evaporator, which is characterized in that and further include auxiliary heating apparatus (8), overheat device for storing liquid (6), The water cooled condenser (2) is equipped with water inlet (202), water outlet (201), the overheat device for storing liquid (6) and water-cooled Condenser (2) is connected, and the overheat device for storing liquid (6) is connected with evaporator (4) by second throttle (7), the auxiliary heating apparatus (8) between water cooled condenser (2) and evaporator (4), the first throttle valve (3), second throttle (7), evaporator (4) match with auxiliary heating apparatus (8).

2. a kind of air heat source according to claim 1 pumps defroster, which is characterized in that the auxiliary heating apparatus (8) includes Fan part (801), auxiliary heater (802), air outlet (803), the air outlet (803) and first throttle of the auxiliary heating apparatus (8) Valve (3), second throttle (7), evaporator (4) match.

3. a kind of air heat source according to claim 2 pumps defroster, which is characterized in that the overheat device for storing liquid (6) collet is cased on.

4. a kind of air heat source pumps Defrost method, which is characterized in that using a kind of described in any item air heat of claim 1-3 Source pump installation, comprising the following steps:

S1, air heat source pump assembly is opened；

S2, temperature detection is carried out by thermo detector；

S3, control auxiliary heating apparatus (8) open or close；

S4, control second throttle (7) open or close；

S5, defrosting is completed.

5. a kind of air heat source according to claim 4 pumps Defrost method, which is characterized in that temperature detection in step S2 Range includes auxiliary heating apparatus (8), first throttle valve (3), second throttle (7), evaporator (4), and judges whether temperature is higher than 50 ℃。

6. a kind of air heat source according to claim 5 pumps Defrost method, which is characterized in that control auxiliary heating apparatus in step S3 (8) it opens and closes and mainly comprises the steps that

A, temperature is not less than 50 DEG C, if opening auxiliary heating apparatus (8) at this time, evaporator (4) frost-free, temperature continues to increase, can be pre- Vaporization prevention device (4) frosting；If not opening auxiliary heating apparatus (8), carry out at any time, temperature-resistant or temperature reduces；

B, temperature is lower than 50 DEG C, and evaporator (4) frosting opens auxiliary heating apparatus (8) at this time, and temperature increases, and auxiliary heating apparatus (8) is to steaming at this time Hair device (4) defrosts, if not opening auxiliary heating apparatus (8), temperature continues to reduce, and opens auxiliary heating apparatus (8) at this time to evaporator (4) It defrosts.

7. a kind of air heat source according to claim 6 pumps Defrost method, which is characterized in that second throttle in step S4 (7) it opens or closes and mainly comprises the steps that

C, temperature is not less than 50 DEG C, and second throttle (7) is closed at this time, evaporator (4) frost-free；

D, temperature is lower than 50 DEG C, if opening second throttle (7) at this time, can prevent evaporator (4) by second throttle (7) Frosting, if not opening second throttle (7), temperature is reduced, evaporator (4) frosting.

8. a kind of air heat source according to claim 7 pumps Defrost method, which is characterized in that when temperature reduces in step a When, repeat step b or d.

9. a kind of air heat source according to claim 8 pumps Defrost method, which is characterized in that evaporator (4) is tied in step d When white, temperature is reduced, and repeats step b.

Technical field

The present invention relates to air heat source pump technical field more particularly to a kind of air heat source pump defroster and methods.

Background technique

Air source heat pump is one kind of heat pump techniques, there is the good reputation of " porter of the Nature energy ", has use cost The multiple advantage such as low, easy to operate, good heating effect, safety, clean, air source heat pump are moved using the energy in air as main Power realizes the transfer of energy by a small amount of electrical energy drive compressor operation, without complicated configuration, expensive water intaking, recharge or Person's soil heat exchange system and Special machine room can gradually reduce traditional heating and give atmospheric environment bring a large amount of pollutant emissions, Guarantee to realize energy-saving and environment-friendly purpose while heating effect.

Air heat source pumps the conversion that temperature is mainly realized by refrigerant, and refrigerant is influenced to compare by ambient temperature Greatly, it is reduced with the reduction of environment temperature；Such as when environment temperature is at 0 DEG C or so, it is easiest to frosting, at this moment refrigerant passes through water After condenser condensation, the temperature of refrigerant enters in evaporator after throttling set throttles and evaporates at 30 degree or so；After throttling Low-temp low-pressure coolant quantity it is insufficient, lead to evaporimeter frosting.

Since frosting, efficiency begins to reduce air heat source pump assembly at present, until unit defrosting terminates, when continuing Between account about 50% time of whole cycle, wherein the time of Frost formation process, that is, efficiency decline time 30%, defrosting time account for 20% time, that is the state for thering is the time of half to be in efficiency decline, even stop working in each period, serious shadow Ring the stability and energy saving of unit.

Summary of the invention

The purpose of the present invention is to solve the problems mentioned above in the background art, and a kind of air heat source pump proposed Defroster and method.

To achieve the goals above, present invention employs following technical solutions:

A kind of air heat source pump defroster, including compressor, water cooled condenser, evaporator, first throttle valve, motor wind Fan, the compressor, water cooled condenser, first throttle valve, evaporator are sequentially connected, the electric motor fan and evaporator phase Match, further include auxiliary heating apparatus, overheat device for storing liquid, the water cooled condenser is equipped with water inlet, water outlet, the overheat liquid storage Device is connected with water cooled condenser, and the overheat device for storing liquid is connected with evaporator by second throttle, the auxiliary heating apparatus Between water cooled condenser and evaporator, the first throttle valve, second throttle, evaporator with auxiliary heating apparatus phase Match.

Preferably, the auxiliary heating apparatus includes fan part, auxiliary heater, air outlet, the air outlet of the auxiliary heating apparatus and One throttle valve, second throttle, evaporator match.

Preferably, collet is cased on the overheat device for storing liquid.

A kind of air heat source pump Defrost method, comprising the following steps:

S1, air heat source pump assembly is opened；

S2, temperature detection is carried out by thermo detector；

S3, control auxiliary heating apparatus open or close；

S4, control second throttle open or close；

S5, defrosting is completed.

Preferably, the range of temperature detection includes auxiliary heating apparatus, first throttle valve, second throttle, evaporator in step S2, And judge whether temperature is higher than 50 DEG C.

Preferably, auxiliary heating apparatus opening and closing are controlled in step S3 to mainly comprise the steps that

A, temperature is not less than 50 DEG C, if opening auxiliary heating apparatus at this time, evaporator frost-free, temperature continues to increase, can pre- vaporization prevention Device frosting；If not opening auxiliary heating apparatus, carry out at any time, temperature-resistant or temperature reduces；

B, temperature is lower than 50 DEG C, and evaporimeter frosting opens auxiliary heating apparatus at this time, and temperature increases, and auxiliary heating apparatus carries out evaporator at this time Defrosting, if not opening auxiliary heating apparatus, temperature continues to reduce, and opens auxiliary heating apparatus at this time and defrosts to evaporator.

Preferably, second throttle is opened or closed and is mainly comprised the steps that in step S4

C, temperature is not less than 50 DEG C, and second throttle is closed at this time, evaporator frost-free；

D, temperature be lower than 50 DEG C, if at this time open second throttle, by second throttle can pre- preventing frosting of evaporator, if not Second throttle is opened, temperature reduces, evaporimeter frosting.

Preferably, in step a when the temperature decreases, step b or d are repeated.

Preferably, in step d when evaporimeter frosting, temperature is reduced, and repeats step b.

Compared with prior art, the present invention provides a kind of air heat source pump defroster and method, have following beneficial Effect:

1, air heat source pump defroster and method, user is when opening air heat source pump assembly, compressor operating discharge High temperature and high pressure gas refrigerant, become the liquid refrigerants of high pressure medium temperature, this process after water cooled condenser condensation heat dissipation By the water heating in water cooled condenser, water cooled condenser is equipped with water inlet, water outlet constitutes closed circuit, refrigerant condensation Become the liquid refrigerants of low-temp low-pressure after entering first throttle valve reducing pressure by regulating flow afterwards, it is low to become low temperature into evaporator evaporation endothermic Then the gaseous coolant of pressure turns again to compressor and is compressed, complete a complete heating circulation；

The temperature around auxiliary heating apparatus, first throttle valve, second throttle, evaporator is examined by thermo detector in the process It surveys, and judges whether temperature is higher than 50 DEG C；

When temperature is not less than 50 DEG C, second throttle is not opened, and second throttle is electric expansion valve, will not influence temperature at this time The variation of degree；

If opening auxiliary heating apparatus, auxiliary heater, fan part are started to work, and the heat that fan part generates auxiliary heater is by going out Air port is blown into air environment, and temperature increases, and can prevent temperature reduction, the frosting of evaporator；

If not opening auxiliary heating apparatus, temperature-resistant or temperature is reduced, temperature-resistant around evaporator when temperature-resistant, this When evaporator on frost-free, if temperature reduce, be lower than 50 DEG C, carry out next step；

When temperature is lower than 50 DEG C, if opening second throttle, the refrigerant overheated in device for storing liquid is entered by second throttle Into evaporator, the refrigerant in evaporator is supplemented, overheat device for storing liquid is equipped with heat insulating mattress, can prevent overheat liquid storage Temperature change in device, and then can prevent or remove the frost on evaporator；

If not opening second throttle, the temperature of evaporator is reduced at this time, and temperature is still lower than 50 DEG C, then carries out next step；

If opening auxiliary heating apparatus, auxiliary heating apparatus improves the temperature of evaporator, carries out defrosting operation to evaporator；

If not opening auxiliary heating apparatus, the temperature on evaporator can be made to reduce, evaporator remains unchanged frosting, at this time repeatedly previous step, i.e., Auxiliary heating apparatus is opened, defrosting operation is carried out to evaporator；

The device by increasing auxiliary heating apparatus, can pre- preventing frosting of evaporator, while in frosting can quick defrost, when defrost Between can shorten 70% or so, and the water after defrost can be blown off by the wind-force that auxiliary heating apparatus generates, to the evaporation wing of evaporator Piece carries out cleaner drying；Device for storing liquid is overheated by addition, the refrigerant in evaporator can be supplemented, while auxiliary heating apparatus The temperature that can change evaporator can control the speed of the refrigerant of the exclusion of overheat device for storing liquid, and then can pre- vaporization prevention Device frosting, and then improve efficient, the stable operation of whole system.

It is not directed to part in the device to be the same as those in the prior art or can be realized by using the prior art, the present invention can Frost on evaporator on air heat source pump is prevented and removed, prevention and elimination effect are good, improve whole system Efficiently, stable operation.

Detailed description of the invention

Fig. 1 is the structural schematic diagram that a kind of air heat source proposed by the present invention pumps defroster and method；

Fig. 2 is the structural schematic diagram for the auxiliary heating apparatus that a kind of air heat source proposed by the present invention pumps defroster and method；

Fig. 3 is the flow diagram that a kind of air heat source proposed by the present invention pumps defroster and method.

In figure: 1, compressor；2, water cooled condenser；201, water outlet；202, water inlet；3, first throttle valve；4, it steams Send out device；5, electric motor fan；6, device for storing liquid is overheated；7, second throttle；8, auxiliary heating apparatus；801, fan part；802, auxiliary heating Device；803, air outlet.

Specific embodiment

Following will be combined with the drawings in the embodiments of the present invention, and technical solution in the embodiment of the present invention carries out clear, complete Site preparation description, it is clear that described embodiments are only a part of the embodiments of the present invention, instead of all the embodiments.

In the description of the present invention, it is to be understood that, term " on ", "lower", "front", "rear", "left", "right", "top", The orientation or positional relationship of the instructions such as "bottom", "inner", "outside" is to be based on the orientation or positional relationship shown in the drawings, merely to just In description the present invention and simplify description, rather than the device or element of indication or suggestion meaning must have a particular orientation, with Specific orientation construction and operation, therefore be not considered as limiting the invention.