CN207894065U - A kind of heat pump unit - Google Patents
A kind of heat pump unit Download PDFInfo
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- CN207894065U CN207894065U CN201721824528.6U CN201721824528U CN207894065U CN 207894065 U CN207894065 U CN 207894065U CN 201721824528 U CN201721824528 U CN 201721824528U CN 207894065 U CN207894065 U CN 207894065U
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Abstract
The utility model discloses a kind of heat pump unit, the heat pump unit include in a heating mode the first heat exchanging part as condenser, in a heating mode as the second heat exchanging part, expansion valve and the water-supporting disc of evaporator；The heat pump unit further includes being set to the frost removal of the second heat exchanging part, and frost removal includes inlet end and an outlet end；The input end of frost removal is communicated in the outlet pipe section of the first heat exchanging part and the outlet pipe section of the second heat exchanging part.The heat pump unit further includes being set to the icecap of water-supporting disc, and icecap also includes inlet end and an outlet end；The input end of icecap is also communicated in the outlet pipe section of the first heat exchanging part and the outlet pipe section of the second heat exchanging part.Under heating mode, using the refrigerant flowed out from the first heat exchanging part to frost removal and icecap heat supply, under refrigeration mode, using the refrigerant flowed out from the second heat exchanging part to frost removal and icecap heat supply, so that the second heat exchanging part and water-supporting disc is thoroughly defrosted ice-breaking, and heat pump unit energy consumption will not be increased.
Description
Technical field
The utility model is related to technical field of heat pumps, and in particular to a kind of heat pump unit.
Background technology
Since heat pump unit has operating cost low, the high feature of operational process energy conservation and environmental protection, efficiency, thus got over
It is more widely applied, for example the air conditioner applied in daily life, the air-cooled unit etc. applied in industrial production belong to
Heat pump unit.
In the course of work of heat pump unit, under heating mode, there are problems that evaporimeter frosting even icing and position
The problem of water-supporting disc below evaporator freezes.
Frosting and icing under heating mode are heavily dependent on environment temperature, when environment temperature is down to 10 ° or less
When, evaporator body temperature in the state of meeting performance would generally be reduced to 0 ° hereinafter, the moisture in air is made to hold very much
It is easily just condensed on evaporator and water-supporting disc, thus frosting in heating operations and icing is more difficult evades.
For this purpose, in the prior art, to ensure the normal operation steady in a long-term of heat pump unit, can defrost to heat pump unit
Operation.The defrosting means of generally use are in the prior art：After heat pump unit runs a period of time in a heating mode, it is switched to
Defrosting mode (refrigeration mode) runs certain time, switches back into heating mode again later.
In the prior art, the run time of defrosting mode is typically that heat pump unit is preset, generally half an hour, is arrived
Up to after run time, no matter whether heat pump unit, which defrosts, finishes, and heat pump unit exits defrosting mode and switches back into heating mode.
Therefore, in the prior art, it is easy to continue to make when appearing in the still remaining more frost layer of evaporator and ice sheet
The state of heat.Under this state, remaining frost layer and ice sheet can be condensed into rapidly density bigger, be more difficult to the frost or ice removed,
Cause these frost and ice under next defrosting mode still can not be eliminated.It is so previous, heat pump unit vicious circle is caused, most
Heat pump unit is caused to cannot achieve normal heat-production functions eventually.
Moreover, in the prior art, after defrosting mode end of run, the ice sheet of water-supporting disc also has more remnants.Once support
Ice sheet on water pond is assembled to certain thickness, and ice sheet can spread base of evaporator, make base of evaporator with water-supporting disc by ice sheet
Covering, finally can also cause heat pump unit to cannot achieve normal heat-production functions, or even can also cause frost crack pipe, refrigerant
A series of more serious problems such as leakage.
And if the ice sheet removing for extending frost layer of the run time up to evaporator of defrosting mode, ice sheet and water-supporting disc is thorough
Heating mode is switched back into when bottom again, and energy consumption can be increased, can also influence the heating of user.
It in view of this, how to develop a kind of heat pump unit, more can thoroughly defrost and ice-breaking, and substantially will not
The heating for influencing user, will not increase heat pump unit energy consumption, be those skilled in the art's technical problem urgently to be resolved hurrily.
Utility model content
In order to solve the above technical problems, the utility model provides a kind of heat pump unit, the heat pump unit is included in heating
As the first heat exchanging part of condenser, in a heating mode as the second heat exchanging part, expansion valve and the position of evaporator under pattern
Water-supporting disc below second heat exchanging part；The heat pump unit further includes being set to the frost removal of second heat exchanging part,
The frost removal includes inlet end and an outlet end；The input end of the frost removal is communicated in the outlet pipe section of first heat exchanging part
And the outlet pipe section of second heat exchanging part；
Wherein, the outlet pipe section of first heat exchanging part is for the heat-exchange unit is under heating mode,
The outlet pipe section of second heat exchanging part is for the heat-exchange unit is in refrigeration mode down.
Optionally, the frost removal is set to the middle part and lower part of second heat exchanging part.
Optionally, the heat pump unit further includes being set to the icecap of the water-supporting disc, the icecap also include into
Mouth end and outlet end；The input end of the icecap is also communicated in the outlet pipe section of first heat exchanging part and described second changes
The outlet pipe section in hot portion；
Wherein, the outlet pipe section of first heat exchanging part is for the heat-exchange unit is under heating mode,
The outlet pipe section of second heat exchanging part is for the heat-exchange unit is in refrigeration mode down.
Optionally, the frost removal and the icecap are arranged independently of each other；Alternatively, the frost removal and the icecap
It is interconnected, and concrete configuration is：The input end of the icecap is communicated in the outlet end of the frost removal.
Optionally, the heat pump unit is additionally provided with solenoid valve, for controlling the frost removal and first heat exchanging part
Outlet pipe section, second heat exchanging part outlet pipe section connection and closing and the icecap exchange heat with described first
The outlet pipe section in portion, second heat exchanging part outlet pipe section connection and closing.
Optionally, the heat pump unit further includes the first temperature sensor, the temperature for detecting second heat exchanging part,
And second temperature sensor, the temperature for detecting the water-supporting disc.
Optionally, the heat pump unit further includes controller, preset first temperature value, second temperature in the controller
Value；
The controller judges the second heat exchanging part temperature that first temperature sensor detects less than described the
When one temperature value or when judging that the water-supporting disc temperature that the second temperature sensor detects is less than first temperature value,
Open command is sent to the solenoid valve, when being higher than the second temperature value, out code is sent to the solenoid valve；
Wherein, the second temperature value is greater than or equal to first temperature value.
Optionally, the heat pump unit further includes the 5th check valve, and the 5th check valve is set to the frost removal, institute
It states on the connecting pipeline between icecap and the first heat exchanging part outlet pipe section, makes refrigerant from first heat exchanging part
Outlet pipe section flows to the frost removal, the icecap；
The heat pump unit further includes the 6th check valve, and the 6th check valve is set to the frost removal, the ice-breaking
On connecting pipeline between device and the second heat exchanging part outlet pipe section, make refrigerant from the outlet of second heat exchanging part
Frost removal described in Duan Liuxiang, the icecap.
Optionally, the frost removal and the icecap are heating coil, and the input end of the heating coil is set to
Its bottom pipeline section makes the refrigerant of the inflow heating coil first flow through its bottom pipeline section.
Optionally, the refrigerant flowed out from the outlet end of the frost removal and the icecap flows to the expansion
Valve.
Heat pump unit provided by the utility model is compared background technology, is had the following technical effect that：
A, the heat supply to frost removal can be made and the heat supply of icecap is combined with defrosting means in the prior art,
That is, it is possible to when heat pump unit switches to defrosting mode (refrigeration mode), it is situated between using the refrigeration flowed out from the second heat exchanging part
Background technology is compared in confrontation frost removal and icecap heat supply, removes same frost layer and ice sheet, and required time shortens, so as to
So that heat pump unit can switch to heating mode as early as possible, to meet the heating demand of user.
B, the refrigeration flowed out from the first heat exchanging part can be utilized in heat pump unit from after defrosting mode switches to heating mode
Medium continues to frost removal and icecap heat supply, until frost layer and ice sheet are thoroughly removed, terminates to evade defrosting mode
Frost layer and ice sheet removing are not thorough the frost layer for causing not to be eliminated and ice sheet and are condensed into the frost layer for being more difficult to remove and ice sheet rapidly afterwards
Risk, be conducive to heat pump unit operation steady in a long-term.
C, make frost removal and icecap make full use of the refrigerant flowed out in a heating mode from the first heat exchanging part and
The waste heat of the refrigerant flowed out from the second heat exchanging part under refrigeration mode, had both enable frost removal and icecap obtain enough heat
Amount, and the efficiency of heat pump unit is not interfered with, and then the energy consumption of heat pump unit can be saved；And, it is only necessary to setting is corresponding
The structure simplification for being conducive to heat pump unit for hot function can be realized in connecting pipeline, and then the operation that can improve heat pump unit can
By property.
D, the refrigerant flowed out from frost removal and icecap is made to flow to expansion valve, and the part refrigerant self-expanding valve
The first heat exchanging part or the second heat exchanging part as evaporator are flowed to, due to the refrigerant temperature from frost removal and icecap outflow
It is relatively low, it is more easy to absorb atmospheric heat, so as to the more fully vaporization in evaporator, is conducive to improve the efficiency of heat pump unit.
Description of the drawings
Fig. 1 is the schematic diagram of heat pump unit first embodiment provided by the utility model；
Fig. 2 is the schematic diagram of heat pump unit second embodiment provided by the utility model；
Fig. 3 is the schematic diagram of heat pump unit 3rd embodiment provided by the utility model.
The reference numerals are as follows in Fig. 1-Fig. 3：
1 compressor, 2 heat regenerators, 3 four-way valves, 4 first heat exchanging part, 5 first check valves, 6 devices for drying and filtering, 7 liquid storages
Device, 8 evaporators, 9 second check valves, 10 expansion valves, 11 third check valves, 12 gas-liquid separators, 13 the 4th check valves, 14 electromagnetism
Valve, 15 frost removals, 16 icecaps, 17 the 5th check valves, 18 the 6th check valves.
Specific implementation mode
In order to make those skilled in the art more fully understand the technical solution of the utility model, below in conjunction with the accompanying drawings and have
The utility model is described in further detail for body embodiment.
- Fig. 3 is please referred to Fig.1, Fig. 1 is the schematic diagram of heat pump unit first embodiment provided by the utility model；Fig. 2 is this
The schematic diagram for the heat pump unit second embodiment that utility model provides；Fig. 3 is that heat pump unit third provided by the utility model is real
Apply the schematic diagram of example.
As shown in Figs. 1-3, heat pump unit is commonly configured with compressor 1, heat regenerator 2, four-way valve 3, the first heat exchanging part 4,
First check valve 5, device for drying and filtering 6, liquid storage device 7, the second heat exchanging part 8, the second check valve 9, expansion valve 10, third check valve
11, gas-liquid separator 12 and the 4th check valve 13.Moreover, the lower section of the second heat exchanging part 8 is configured with water-supporting disc.
Wherein, in compressor 1, refrigerant is changed into high temperature, high pressure, steam-like by low temperature, low pressure, steam-like.
Wherein, heat regenerator 2 is apolegamy component.
Wherein, four-way valve 3 is used to convert the flow direction of refrigerant, makes heat pump unit in heating and refrigeration mode (defrosting mould
Formula) between switch.
Wherein, in expansion valve 10, refrigerant through throttling action, by high temperature, high pressure, liquid be changed into low temperature, low pressure,
Liquid.
Wherein, heat pump unit in a heating mode, the first heat exchanging part 4 be used as condenser, wherein, refrigerant with flow through
It is condensed after the water heat exchange of condenser, high temperature, high pressure, liquid is changed by high temperature, high pressure, steam-like；Second heat exchanging part 8 is as steaming
Device is sent out, wherein, refrigerant absorbs heat from air, is changed into low temperature, low pressure, steam-like by low temperature, low pressure, liquid.
At this point, in the flow path of refrigerant such as Fig. 1-2 shown in dotted line whole rocket head：1 → heat regenerator of compressor 2 → tetra-
3 → the first heat exchanging part of port valve, 4 → the first 6 → expansion valve of check valve 5 → liquid storage device, 7 → device for drying and filtering, 10 → the second check valve 9
→ the second 8 → gas-liquid separator of heat exchanging part, 12 → compressor 1.
Wherein, for heat pump unit under refrigeration mode and defrosting mode, the first heat exchanging part 4 is used as evaporator, wherein, refrigeration
Medium absorbs heat from air, is changed into low temperature, low pressure, steam-like by low temperature, low pressure, liquid；Second heat exchanging part 8 is as cold
Condenser, wherein, refrigerant and flow through condenser water heat exchange after condense, by high temperature, high pressure, steam-like be changed into high temperature,
High pressure, liquid.
At this point, in the flow path of refrigerant such as Fig. 1-2 shown in solid line whole rocket head：1 → heat regenerator of compressor 2 → tetra-
The 10 → the 4th check valve of 3 → the second 6 → expansion valve of heat exchanging part 8 → third check valve 11 → liquid storage device, 7 → device for drying and filtering of port valve
13 → the first 4 → gas-liquid separator of heat exchanging part, 12 → compressors 1.
It should be understood that above-mentioned high temperature, high pressure, low temperature, low pressure are all opposite concepts, i.e. relatively-high temperature, relatively high
Pressure, relative low temperature, relatively low pressure.
It is noted that the outlet pipe section of the first heat exchanging part 4 as described herein is to be in system for the heat-exchange unit
For under heat pattern, the outlet pipe section of second heat exchanging part 8 be for the heat-exchange unit it is in refrigeration mode under
For.It should be appreciated that the outlet pipe section of the first heat exchanging part 4 is changed into the first heat exchanging part 4 in cooling mode under heating mode
Import pipeline section, the outlet pipe section of the second heat exchanging part 8 is changed into the import of the second heat exchanging part 8 in a heating mode under refrigeration mode
Pipeline section.
As shown in Figs. 1-3, heat pump unit provided by the utility model is also configured with frost removal 15, and the frost removal 15 is arranged
In the second heat exchanging part 8, and can be specifically set in the middle part and lower part of the second heat exchanging part 8.
Also, the frost removal 15 includes inlet end and an outlet end；The input end of the frost removal 15 by connecting accordingly
Siphunculus road is communicated in the outlet pipe section of first heat exchanging part 4 and the outlet pipe section of second heat exchanging part 8.
Also, in specific embodiment shown in Fig. 1-3, the outlet end of frost removal 15 is communicated in by corresponding connecting line
The import pipeline section of liquid storage device 7.
Under such configuration, as shown in half arrow of solid line in figure, when heat pump unit is in heating mode, frost removal 15 is flowed to
The flow path of refrigerant be：Input end → frost removal 15 of outlet pipe section → frost removal 15 of first heat exchanging part 4 goes out
The import pipeline section of mouth end → liquid storage device 7.When heat pump unit is in refrigeration mode, the flowing of the refrigerant of frost removal 15 is flowed to
Path is：Outlet end → liquid storage device 7 of input end → frost removal 15 of outlet pipe section → frost removal 15 of second heat exchanging part 8 into
Mouth pipeline section.
It is worth noting that above-mentioned, frost removal 15 is set to the middle part of the second heat exchanging part 8 and lower part is since second changes
Hot portion 8 is usually nearly vertical arrangement, and during defrosting, white water and ice water can flow down, and causes in the middle part of the second heat exchanging part 8 and lower part
Frost layer and the density of ice sheet are higher than the density of the frost layer and ice sheet of upper part.It is of course also possible to according to practical application request, will remove
White device 15 is arranged together on the top of the second heat exchanging part 8.
Further, as shown in Figs. 1-3, heat pump unit provided by the utility model can also configure icecap 16, described
Icecap 16 is set to above-mentioned water-supporting disc.
Also, the icecap 16 also includes inlet end and an outlet end.The input end of the icecap 16 is also communicated in institute
State the outlet pipe section of the first heat exchanging part 4 and the outlet pipe section of second heat exchanging part 8.
Also, icecap 16 and frost removal 15 can there are many different arrangements, as shown, illustrating two kinds not
Same arrangement.
In first embodiment and second embodiment shown in Fig. 1-2, frost removal 15 and icecap 16 are to arrange independently of each other
, the outlet end of icecap 16 is communicated in the import pipeline section of liquid storage device 7 by corresponding connecting line.Under such arrangement, such as scheme
Shown in half arrow of middle solid line, frost removal 15 and ice-breaking are flowed under refrigeration mode and under heating mode from the outlet pipe section of compressor 1
The flow path of the refrigerant of device 16 is divided into two, and one is：The outlet pipe section (corresponding heating mode) of first heat exchanging part 4
Or second heat exchanging part 8 outlet pipe section (corresponding refrigeration mode) → frost removal 15 input end → frost removal 15 outlet end → storage
Liquid device 7, another is：The outlet pipe section (corresponding heating mode) or the outlet pipe section of the second heat exchanging part 8 of first heat exchanging part 4 are (right
Answer refrigeration mode) the import pipeline section of outlet end → liquid storage device 7 of input end → icecap 16 of → icecap 16.
In 3rd embodiment shown in Fig. 3, frost removal 15 and icecap 16 are interconnected, and concrete configuration is：It removes
The input end of white device 15 is communicated in the outlet end of icecap 16.Under such arrangement, as shown in half arrow of solid line in figure, from compressor
The flow path that 1 outlet pipe section flows to the refrigerant of frost removal 15 and icecap 16 is：The outlet pipe section of first heat exchanging part 4
Input end → the icecap of outlet pipe section (corresponding refrigeration mode) → icecap 16 of (corresponding heating mode) or the second heat exchanging part 8
The import pipeline section of outlet end → liquid storage device 7 of input end → frost removal 15 of 16 outlet end → frost removal 15.
As the above analysis, heat pump unit provided by the utility model can make the heat supply to frost removal 15 and to broken
The heat supply of ice device 16 is combined with defrosting means in the prior art, that is to say, that can switch to defrosting mould in heat pump unit
When formula (refrigeration mode), using the refrigerant flowed out from the second heat exchanging part 8 to 16 heat supply of frost removal 15 and icecap, compared to the back of the body
Scape technology removes same frost layer and ice sheet, and required time shortens, so as to so that heat pump unit can switch to heating as early as possible
Pattern, to meet the heating demand of user.
And it is possible in heat pump unit from after defrosting mode switches to heating mode, utilize what is flowed out from the first heat exchanging part 4
Refrigerant continues to 16 heat supply of frost removal 15 and icecap, until frost layer and ice sheet are thoroughly removed, to evade defrosting
Frost layer and ice sheet removing are not thorough the frost layer for causing not to be eliminated and ice sheet and are condensed into the frost for being more difficult to remove rapidly after pattern
The risk of layer and ice sheet is conducive to the operation steady in a long-term of heat pump unit.
Also, frost removal 15 and icecap 16 is made to make full use of the refrigeration flowed out in a heating mode from the first heat exchanging part 4
The waste heat of medium and the refrigerant flowed out in cooling mode from the second heat exchanging part 8, had both enable frost removal 15 and icecap 16
Enough heats are enough obtained, and do not interfere with the efficiency of heat pump unit, and then the energy consumption of heat pump unit can be saved；Also, only
It needs to be arranged corresponding connecting pipeline and can be realized and be conducive to the structure of heat pump unit for hot function and simplify, and then heat can be improved
The operational reliability of pump assembly.
Moreover, the refrigerant flowed out from frost removal 15 and icecap 16 is made to flow to expansion valve 10, it in cooling mode, should
Part refrigerant self-expanding valve 10 flows to the first heat exchanging part 4 as evaporator, in a heating mode, the part refrigerant
Self-expanding valve 10 flows to the second heat exchanging part 8 as evaporator, due to the refrigerant from frost removal 15 and the outflow of icecap 16
Temperature is relatively low, is more easy to absorb atmospheric heat, so as to the more fully vaporization in evaporator, is conducive to improve the effect of heat pump unit
Rate.
Continue to refer to figure 1-3.
Specifically, above-mentioned frost removal 15 and icecap 16 all can be heating coil, more specifically, above-mentioned frost removal 15 can
To be set as the higher finned type heating coil of heat exchange efficiency.
Also, the input end of the heating coil can be set to its bottom pipeline section, make the system of the inflow heating coil
Cold medium first flows through its bottom pipeline section, so set, can further make the higher refrigerant of temperature preferentially flow through frost layer or
The higher position of ice sheet density is conducive to the uniform removing of frost layer.
Continue to refer to figure 1-3.
Heat pump unit provided by the utility model is also configured with valve member, is changed with described first for controlling the frost removal 15
The outlet pipe section in hot portion 4, second heat exchanging part 8 outlet pipe section connection and closing and the icecap 16 with it is described
The outlet pipe section of first heat exchanging part 4, second heat exchanging part 8 outlet pipe section connection and closing.Preferably, the valve member choosing
With convenient for controlling and respond rapid solenoid valve 14.
Specifically, in first embodiment and 3rd embodiment as shown in figures 1 and 3, when the solenoid valve 14 is closed,
Frost removal 15 is mutually closed with the outlet pipe section of first heat exchanging part 4, the outlet pipe section of second heat exchanging part 8, also, broken
Ice device 16 is also mutually closed with the outlet pipe section of first heat exchanging part 4, the outlet pipe section of second heat exchanging part 8.At this point, nothing
By heating mode or refrigeration mode, refrigerant can not carry out heat supply to frost removal 15 and icecap 16.
When the solenoid valve 14 is opened, the outlet pipe section of frost removal 15 and first heat exchanging part 4, second heat exchange
The outlet pipe section in portion 8 is interconnected, also, icecap 16 and the outlet pipe section of first heat exchanging part 4, second heat exchanging part
8 outlet pipe section is also interconnected.At this point, no matter heating mode or refrigeration mode, refrigerant can be to frost removal 15
Heat supply is carried out with icecap 16.
Specifically, second embodiment as shown in Figure 2, installation position and the first embodiment and third of solenoid valve 14 are implemented
Example is different.In this embodiment, solenoid valve 14 only controls frost removal 15, icecap 16 goes out with first heat exchanging part 4
Connection and closing between mouthful pipeline section, without control frost removal 15, icecap 16 and second heat exchanging part 8 outlet pipe section it
Between connection and closing.That is, no matter solenoid valve 14 is closed or is opened, frost removal 15, icecap 16 and described second
The outlet pipe section of heat exchanging part 8 is interconnected always.
Under such setting state, as long as heat pump unit is in refrigeration mode, then no matter solenoid valve 14 is closed or is opened, from
The refrigerant homomergic flow of second heat exchanging part 8 outflow carries out heat supply to frost removal 15 and icecap 16, to the two.Thus freezing
The cooling extent that refrigerant can be increased under pattern so as to improve the condensation effect of refrigerant, and then improves heat pump
The efficiency of unit.
Further, the heat pump unit be configured with for detect the first temperature sensor of 8 temperature of the second heat exchanging part with
The second temperature sensor of water-supporting disc temperature is detected, whether this is to frost removal 15 and icecap to demarcate by the detection to temperature
16 heat supplies.
Lead to the first temperature sensor, second temperature sensor and solenoid valve 14 specifically, the heat pump unit is also configured
The controller of letter, preset first temperature value and second temperature value in the controller.
When controller judges that the temperature for the second heat exchanging part that the first temperature sensor detects is less than above-mentioned first temperature value
When and when judging that water-supporting disc temperature that second temperature sensor detects is less than above-mentioned first temperature value, sent to solenoid valve 14
Open command, with to 16 heat supply of frost removal 15 and icecap.
When controller judge the second heat exchanging part that the first temperature sensor detects temperature be higher than second temperature value when with
And it when judging that the water-supporting disc temperature that second temperature sensor detects is higher than second temperature value, sends and closes to corresponding solenoid valve 14
Instruction is closed, is stopped to 16 heat supply of frost removal 15 and icecap.
Wherein, the second temperature value is greater than or equal to first temperature value, specifically, can by the first temperature value and
Second temperature value is disposed as 0 DEG C.
Under such setting state, no matter heat pump unit is in heating mode or defrosting mode (refrigeration mode), as long as " the
The temperature for the second heat exchanging part that one temperature sensor detects is detected less than above-mentioned second temperature value and second temperature sensor
The water-supporting disc temperature arrived be less than above-mentioned second temperature value ", can opens solenoid valve 14, the confession to frost removal 15 and icecap 16
Heat.
If " presetting certain time that is, determining when to exit defrosting mode still to continue in background technology, arriving
Switch back into heating mode after up to the time " time calibrating mode, after heat pump unit switches back into heating mode from defrosting mode, such as
The temperature of the second heat exchanging part of fruit 8 and the temperature of water-supporting disc do not reach second temperature value, then solenoid valve 14 will continue on, with
Continue to 16 heat supply of frost removal 15 and icecap, until the temperature of the second heat exchanging part 8 and the temperature of water-supporting disc reach second temperature
When value (i.e. the thoroughly state of defrosting, ice-breaking), solenoid valve 14 can be just closed, to stop the confession to frost removal 15 and icecap 16
Heat thereby guarantees that the frost layer and ice sheet of the second heat exchanging part 8 and water-supporting disc can be thoroughly removed.
Continue to refer to figure 1-2.
Further, the heat pump unit configures the 5th check valve 17, and the 5th check valve 17 is set to frost removal
15, on the connecting pipeline between 4 outlet pipe section of icecap 16 and the first heat exchanging part, allow refrigerant from the first heat exchanging part 4
Outlet pipe section flow to frost removal 15, icecap 16, and cannot be back to through the connecting pipeline from frost removal 15, icecap 16
One heat exchanging part 4.
Also, the heat pump unit also configures the 6th check valve 18, and the 6th check valve 18 is set to frost removal 15, breaks
On connecting pipeline between 8 outlet pipe section of ice device 16 and the second heat exchanging part, allow refrigerant from the outlet of the second heat exchanging part 8
Pipeline section flows to frost removal 15, icecap 16, and cannot be back to the second heat exchange through the connecting pipeline from frost removal 15, icecap 16
Portion 8.
Heat pump unit provided by the utility model is described in detail above.Specific case pair used herein
The principles of the present invention and embodiment are expounded, and the explanation of the above implementation is merely used to help understand the utility model
Method and its core concept.It should be pointed out that for those skilled in the art, it is new not departing from this practicality
Under the premise of type principle, several improvements and modifications can be made to this utility model, these improvement and modification also fall into this reality
With in novel scope of the claims.
Claims (10)
1. a kind of heat pump unit, the heat pump unit include in a heating mode the first heat exchanging part (4) as condenser, making
As the second heat exchanging part (8) of evaporator, expansion valve (10) and the support below second heat exchanging part (8) under heat pattern
Water pond, which is characterized in that the heat pump unit further includes being set to the frost removal (15) of second heat exchanging part (8), described to remove
White device (15) includes inlet end and an outlet end；The input end of the frost removal (15) is communicated in going out for the first heat exchanging part (4)
The outlet pipe section of mouth pipeline section and second heat exchanging part (8)；
Wherein, the outlet pipe section of first heat exchanging part (4) is for the heat pump unit is under heating mode, institute
The outlet pipe section of the second heat exchanging part (8) is stated for the heat pump unit is in refrigeration mode down.
2. heat pump unit according to claim 1, which is characterized in that the frost removal (15) is set to second heat exchange
The middle part and lower part in portion (8).
3. heat pump unit according to claim 1, which is characterized in that the heat pump unit further includes being set to the support water
The icecap (16) of disk, the icecap (16) also include inlet end and an outlet end；The input end of the icecap (16) also connects
Pass through the outlet pipe section of first heat exchanging part (4) and the outlet pipe section of second heat exchanging part (8)；
Wherein, the outlet pipe section of first heat exchanging part (4) is for the heat pump unit is under heating mode, institute
The outlet pipe section of the second heat exchanging part (8) is stated for the heat pump unit is in refrigeration mode down.
4. heat pump unit according to claim 3, which is characterized in that the frost removal (15) and the icecap (16) phase
Mutually independent arrangement；Alternatively, the frost removal (15) and the icecap (16) are interconnected, and concrete configuration is：The ice-breaking
The input end of device (16) is communicated in the outlet end of the frost removal (15).
5. heat pump unit according to claim 3, which is characterized in that the heat pump unit is additionally provided with solenoid valve (14),
For controlling the outlet pipe section of the frost removal (15) and first heat exchanging part (4), the outlet of second heat exchanging part (8)
The connection and closing of section and the icecap (16) and the outlet pipe section of first heat exchanging part (4), second heat exchanging part
(8) connection and closing of outlet pipe section.
6. heat pump unit according to claim 5, which is characterized in that the heat pump unit further includes the first temperature sensing
Device, temperature and second temperature sensor for detecting second heat exchanging part (8), the temperature for detecting the water-supporting disc
Degree.
7. heat pump unit according to claim 6, which is characterized in that the heat pump unit further includes controller, the control
Preset first temperature value, second temperature value in device processed；
The controller judges that the second heat exchanging part (8) temperature that first temperature sensor detects is less than described first
When temperature value or when judging that the water-supporting disc temperature that the second temperature sensor detects is less than first temperature value, to
The solenoid valve (14) sends open command, and when being higher than the second temperature value, out code is sent to the solenoid valve (14)；
Wherein, the second temperature value is greater than or equal to first temperature value.
8. heat pump unit according to claim 3, which is characterized in that the heat pump unit further includes the 5th check valve
(17), the 5th check valve (17) is set to the frost removal (15), the icecap (16) and first heat exchanging part (4)
On connecting pipeline between outlet pipe section, refrigerant is made to flow to the defrosting from the outlet pipe section of first heat exchanging part (4)
Device (15), the icecap (16)；
The heat pump unit further includes the 6th check valve (18), the 6th check valve (18) be set to the frost removal (15),
On connecting pipeline between the icecap (16) and second heat exchanging part (8) outlet pipe section, make refrigerant from described
The outlet pipe section of two heat exchanging part (8) flows to the frost removal (15), the icecap (16).
9. according to any one of the claim 3-8 heat pump units, which is characterized in that the frost removal (15) and the icecap
(16) it is heating coil, the input end of the heating coil is set to its bottom pipeline section, makes the system of the inflow heating coil
Cold medium first flows through its bottom pipeline section.
10. according to claim 3-8 any one of them heat pump units, which is characterized in that from the frost removal (15) and described
The refrigerant of the outlet end outflow of icecap (16) flows to the expansion valve (10).
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107965944A (en) * | 2017-12-22 | 2018-04-27 | 瀚润联合高科技发展（北京）有限公司 | A kind of heat pump unit |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107965944A (en) * | 2017-12-22 | 2018-04-27 | 瀚润联合高科技发展（北京）有限公司 | A kind of heat pump unit |
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