CN208254012U - Heat pump system - Google Patents
Heat pump system Download PDFInfo
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- CN208254012U CN208254012U CN201820745999.6U CN201820745999U CN208254012U CN 208254012 U CN208254012 U CN 208254012U CN 201820745999 U CN201820745999 U CN 201820745999U CN 208254012 U CN208254012 U CN 208254012U
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- 239000003507 refrigerant Substances 0.000 claims description 59
- 238000010438 heat treatment Methods 0.000 claims description 25
- 238000001514 detection method Methods 0.000 claims description 23
- 238000005057 refrigeration Methods 0.000 claims description 19
- 238000001816 cooling Methods 0.000 claims description 12
- 238000011144 upstream manufacturing Methods 0.000 claims description 8
- 238000007710 freezing Methods 0.000 claims description 3
- 230000008014 freezing Effects 0.000 claims description 3
- 230000000694 effects Effects 0.000 abstract description 13
- 230000002411 adverse Effects 0.000 abstract 1
- 230000007547 defect Effects 0.000 abstract 1
- 230000001105 regulatory effect Effects 0.000 description 8
- 238000010586 diagram Methods 0.000 description 6
- 238000000034 method Methods 0.000 description 5
- 239000007788 liquid Substances 0.000 description 4
- 230000006835 compression Effects 0.000 description 2
- 238000007906 compression Methods 0.000 description 2
- 230000008020 evaporation Effects 0.000 description 2
- 238000001704 evaporation Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000001276 controlling effect Effects 0.000 description 1
- 230000007613 environmental effect Effects 0.000 description 1
- 238000007689 inspection Methods 0.000 description 1
- 238000005086 pumping Methods 0.000 description 1
- 238000010025 steaming Methods 0.000 description 1
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- Compression-Type Refrigeration Machines With Reversible Cycles (AREA)
Abstract
The utility model discloses a heat pump system, which comprises a main circulation loop formed by connecting a compressor, a condenser, a main throttling device and an evaporator in series, and a first branch circuit, wherein one end of the first branch circuit is connected to the exhaust end of the compressor, and the other end of the first branch circuit is connected to the suction end of the compressor; and/or the heat exchanger further comprises a second branch, one end of the second branch is connected to the exhaust end of the compressor, the other end of the second branch is connected to the suction end of the compressor, and a third heat exchanger and a fourth heat exchanger are further arranged on the second branch. The utility model discloses an among the prior art can be overcome to the scheme, the not good defect of heat transfer effect under adverse operating mode environment, can reduce the cold temperature of going out of heat pump system through the heat exchanger on the first branch road, and/or, can promote the temperature of heat pump system under the extremely cold environment through the heat exchanger on the second branch road, improved the operating efficiency.
Description
Technical field
The utility model belongs to technical field of heat pumps, and in particular to a kind of heat pump system.
Background technique
Currently, existing heat pump system not only includes single cooler refrigeration system, it further include air conditioner system.Single cooler refrigeration
System is used for refrigeration mode, and air conditioner system can run refrigeration mode or heating mode.
During heat pump system operation, the outlet temperature of evaporator and condenser imitates the operation of entire heat pump system
Rate has a great impact, especially in the case where outer environmental working condition is severe, for example, the temperature of external environment is very high, air-cooled condenser
Outlet temperature is difficult to drop to the temperature of external environment hereinafter, in this way, heat pump system is unable to operate normally refrigeration mode, conversely, for example,
The temperature of external environment is very low, and heat pump system is also unable to operate normally heating mode, therefore, fortune of the heat pump system under bad working environments
Line efficiency is very low, is difficult to meet practical application request.
In short, not only operational efficiency is low for heat pump system under bad working environments, but also in the extra high situation of outer environment temperature
Under, existing heat pump system is possibly even unable to operate normally heating mode, alternatively, the situation especially low in outer environment temperature
Under, existing heat pump system is even unable to operate normally heating mode.
Utility model content
The purpose of this utility model is that in view of the foregoing drawbacks, a kind of heat pump system is provided, to solve in the prior art,
Under bad working environments environment, the heat transfer effect of heat pump system is bad, operational efficiency is low problem.
The utility model provides a kind of heat pump system, and the heat pump system includes by compressor, condenser, main throttling set
It and further include the first branch with main circulation loop made of evaporator series, one end of the first branch is connected to compression
Exhaust end, the other end of machine are connected to the suction end of compressor, and First Heat Exchanger, institute are additionally provided in the first branch
State First Heat Exchanger can the refrigerant to the outlet end of the evaporator carry out heating heat exchange, be additionally provided in the first branch
Second heat exchanger, second heat exchanger can the refrigerant to the outlet end of the condenser carry out cooling heat exchange；And/or with
And further include second branch, one end of the second branch is connected to the exhaust end of compressor, the other end is connected to compressor
Suction end, and in the second branch be additionally provided with third heat exchanger, the third heat exchanger can be to the condenser
The refrigerant of outlet end carries out heating heat exchange, the 4th heat exchanger is additionally provided in the second branch, the 4th heat exchanger can
Cooling heat exchange is carried out to the refrigerant of the outlet end of the evaporator.
Optionally, the first branch further includes first branch throttling set, and the first branch throttling set series connection is set
It is placed between the First Heat Exchanger and second heat exchanger, is located at along the flow direction of refrigerant, the First Heat Exchanger
The upstream of first branch throttling set.
Optionally, the first branch throttling set is electric expansion valve.
Optionally, the First Heat Exchanger is set to the outlet end of the evaporator and is made by the First Heat Exchanger
The refrigerant for obtaining refrigerant and the evaporator outlet end in the first branch exchanges heat.
Optionally, second heat exchanger is set to the outlet end of the condenser and is made by second heat exchanger
The refrigerant for obtaining refrigerant and the condensator outlet end in the first branch exchanges heat.
Optionally, the first solenoid valve and second solenoid valve are additionally provided in the first branch, first solenoid valve is set
It is disposed adjacent to the position at the exhaust outlet of compressor end, the second solenoid valve is set to the position at the compressor air suction mouth end
It sets.
Optionally, the second branch further includes second branch throttling set, and the second branch throttling set series connection is set
It is placed between the third heat exchanger and the 4th heat exchanger, is located at along the flow direction of refrigerant, the third heat exchanger
The upstream of second branch throttling set.
Optionally, the second branch throttling set is electric expansion valve.
Optionally, the third heat exchanger is set to the outlet end of the condenser and is made by the third heat exchanger
The refrigerant for obtaining refrigerant and the condensator outlet end in the second branch exchanges heat.
Optionally, the 4th heat exchanger is set to the outlet end of the evaporator and is made by the 4th heat exchanger
The refrigerant for obtaining refrigerant and the evaporator outlet end in the second branch exchanges heat.
Optionally, third solenoid valve and the 4th solenoid valve are additionally provided in the second branch, the third solenoid valve is set
It is disposed adjacent to the position at the exhaust outlet of compressor end, the 4th solenoid valve is set to the position at the compressor air suction mouth end
It sets.
Optionally, the heat pump system further includes detection device, and the detection device is for detecting current outdoor environment temperature
Degree.
Optionally, the heat pump system further includes controller, and the controller, which detects the detection device, works as cup
External environment temperature is compared with the first temperature threshold, in order to start corresponding mode；If current outdoor environment temperature is greater than
Equal to first temperature threshold, then the controller selection starts the first branch, if current outdoor environment temperature is less than
First temperature threshold, then the controller selection starts the second branch, wherein first temperature threshold is for cutting
Change the corresponding refrigeration mode of first branch heating mode corresponding with the second branch.
Optionally, the controller is also used to control first solenoid valve and second electromagnetism of the first branch
At least one of valve opens or closes or the controller is also used to control the third solenoid valve of the second branch
It is opened or closed at least one of the 4th solenoid valve.
Optionally, the compressor is frequency-changeable compressor.
Optionally, the detection device is also used to detect current outer tube temperature sensing package temperature value, Current outer loop temperature sensing package temperature
When value, current inner ring temperature sensing package temperature value are run with the difference of current inner tube temperature sensing package temperature value, the first of operation refrigeration mode
Long, to start heating mode second temperature threshold value, current inner tube temperature sensing package temperature value and current inner ring temperature sensing package temperature value
Difference, run refrigeration mode the second operation duration.
Optionally, the value range of the second temperature threshold value is subzero 15 DEG C to 16 DEG C above freezing.
The embodiment of the utility model, the heat pump system include by compressor, condenser, main throttling set and evaporator string
Main circulation loop made of connection, and further include the first branch, one end of the first branch are connected to the exhaust end of compressor, another
End is connected to the suction end of compressor, and being additionally provided with First Heat Exchanger, First Heat Exchanger on the first leg can be to evaporation
The refrigerant of the outlet end of device carries out heating heat exchange, the second heat exchanger is additionally provided in the first branch, the second heat exchanger can be to cold
The refrigerant of the outlet end of condenser carries out cooling heat exchange；And/or and further include second branch, one end of second branch is connected to
Exhaust end, the other end of compressor are connected to the suction end of compressor, and third heat exchanger, are additionally provided in second branch
Three heat exchangers can the refrigerant to the outlet end of condenser carry out heating heat exchange, be additionally provided in second branch the 4th heat exchanger,
4th heat exchanger can the refrigerant to the outlet end of evaporator carry out cooling heat exchange；In this way, passing through the heat exchanger in the first branch
It can reduce the cold temperature out of heat pump system, and/or, heat pump system is able to ascend extremely cold by the heat exchanger in second branch
Temperature under environment, improves the heat transfer effect of heat pump system under bad working environments environment, while also improving the fortune of heat pump system
Line efficiency, wherein the First Heat Exchanger in the first branch increases the return-air degree of superheat, to avoid compressor by liquid hammer, in addition,
The second heat exchanger in the first branch can reduce the cold temperature out of heat pump system.
Further, the embodiment of the utility model, the first branch further include first branch throttling set, first throttling device string
Connection is set between First Heat Exchanger and the second heat exchanger, is located at the first branch along the flow direction of refrigerant, First Heat Exchanger
The upstream of throttling set；In this way, by first branch throttling set, it can be to the first branch and by the cold of First Heat Exchanger
Matchmaker carries out reducing pressure by regulating flow, to enter in the second heat exchanger.
Further, the embodiment of the utility model, first branch throttling set are electric expansion valve；In this way, working as the first branch
When throttling set is electric expansion valve, the effect of the reducing pressure by regulating flow of first branch throttling set is preferable.
The embodiment of the utility model as a result, heat pump system include by compressor, condenser, main throttling set and evaporator
The main circulation loop being connected in series, and further include the first branch, one end of the first branch are connected to the exhaust end of compressor, another
One end is connected to the suction end of compressor, and being additionally provided with First Heat Exchanger, First Heat Exchanger on the first leg can be to steaming
The refrigerant of outlet end for sending out device carries out heating heat exchange, the second heat exchanger is additionally provided in the first branch, the second heat exchanger can be right
The refrigerant of the outlet end of condenser carries out cooling heat exchange；It and/or and further include second branch, one end connection of second branch
The suction end of compressor is connected to exhaust end, the other end of compressor, and be additionally provided in second branch third heat exchanger,
Third heat exchanger can the refrigerant to the outlet end of condenser carry out heating heat exchange, be additionally provided in second branch the 4th heat exchange
Device, the 4th heat exchanger can the refrigerant to the outlet end of evaporator carry out cooling heat exchange；In this way, passing through the heat exchange in the first branch
Device can reduce the cold temperature out of heat pump system, and/or, heat pump system is able to ascend in pole by the heat exchanger in second branch
Temperature under cold environment, improves the heat transfer effect of heat pump system under bad working environments environment, while also improving heat pump system
Operational efficiency, wherein the First Heat Exchanger in the first branch increases the return-air degree of superheat, to avoid compressor by liquid hammer, this
Outside, the second heat exchanger in the first branch can reduce the cold temperature out of heat pump system.
Other features and advantages of the utility model will illustrate in the following description, also, partly from specification
In become apparent, or understood and implementing the utility model.
Below by drawings and examples, the technical solution of the utility model is described in further detail.
Detailed description of the invention
Fig. 1 is the structural schematic diagram of an embodiment of the heat pump system of the utility model；
Fig. 2 is the structural schematic diagram of another embodiment of the heat pump system of the utility model；
Fig. 3 is the flow diagram of an embodiment of the control method of the heat pump system of the utility model.
In conjunction with attached drawing, appended drawing reference is as follows in the utility model embodiment:
1, compressor；2, condenser；3, main throttling set；4, evaporator；100, main circulation loop；200, the first branch；
5, First Heat Exchanger；6, the second heat exchanger；300, second branch；7, third heat exchanger；8, the 4th heat exchanger；9, first branch section
Flow device；10, the first solenoid valve；11, second solenoid valve；12, second branch throttling set；13, third solenoid valve；14, the 4th
Solenoid valve；15, four-way valve.
Specific embodiment
It is specific below in conjunction with the utility model to keep the purpose of this utility model, technical solution and advantage clearer
Technical solutions of the utility model are clearly and completely described in embodiment and corresponding attached drawing.Obviously, described embodiment
It is only the utility model a part of the embodiment, instead of all the embodiments.Based on the embodiments of the present invention, this field
Those of ordinary skill's every other embodiment obtained without making creative work, belongs to the utility model
The range of protection.
Embodiment according to the present utility model provides a kind of heat pump system, as shown in Figure 1, being the heat of the utility model
The structural schematic diagram of one embodiment of pumping system, wherein 1 is compressor；2 be condenser；3 be main throttling set；4 be evaporation
Device；100 be main circulation loop；200 be the first branch；5 be First Heat Exchanger；6 be the second heat exchanger；9 throttle for the first branch
Device；10 be the first solenoid valve；11 be second solenoid valve.Under severe very hot work condition environment, need to reinforce refrigeration effect, then
The first branch 200 is connected in control.
As shown in Fig. 2, the structural schematic diagram of another embodiment for the heat pump system of the utility model, wherein 1 is compression
Machine；2 be condenser；3 be main throttling set；4 be evaporator；300 be second branch；7 be third heat exchanger；8 be the 4th heat exchange
Device；12 be second branch throttling set；13 be third solenoid valve；14 be the 4th solenoid valve；15 be four-way valve.Severe extremely cold
It under work condition environment, needs to reinforce heating effect, then controls and connect second branch 300.
The heat pump system includes being followed by the master that compressor 1, condenser 2, main throttling set 3 and evaporator 4 are connected in series
Loop back path 100, and further include the first branch 200, one end of the first branch 200 is connected to the exhaust end of compressor 1, the other end
Be connected to the suction end of compressor 1, and be additionally provided with First Heat Exchanger 5 in the first branch 200, First Heat Exchanger 5 can be right
The refrigerant of the outlet end of evaporator 4 carries out heating heat exchange, and the second heat exchanger 6, the second heat exchanger are additionally provided in the first branch 200
6 can the refrigerant to the outlet end of condenser 2 carry out cooling heat exchange；It and/or and further include second branch 300, second branch
300 one end is connected to the exhaust end of compressor 1, the other end is connected to the suction end of compressor 1, and in second branch 300
Be additionally provided with third heat exchanger 7, third heat exchanger 7 can the refrigerant to the outlet end of condenser 2 carry out heating heat exchange, second
Be additionally provided on road 300 the 4th heat exchanger 8, the 4th heat exchanger 8 can the refrigerant to the outlet end of evaporator 4 carry out cooling change
Heat；In this way, can reduce the cold temperature out of heat pump system by the heat exchanger in the first branch 200, and/or, pass through second
Heat exchanger on road 300 is able to ascend temperature of the heat pump system under extremely cold environment, improves heat pump system under bad working environments environment
The heat transfer effect of system, while also improving the operational efficiency of heat pump system, wherein the First Heat Exchanger 5 in the first branch 200 increases
The big return-air degree of superheat, to avoid compressor 1 by liquid hammer, in addition, the second heat exchanger 6 in the first branch 200 can reduce
The cold temperature out of heat pump system.
As shown in Figure 1, in order to carry out reducing pressure by regulating flow to the first branch 200 and by the refrigerant of First Heat Exchanger 5,
The first branch 200 further includes first branch throttling set 9, and first branch throttling set 9 is arranged in series in First Heat Exchanger 5 and
Between two heat exchangers 6, the upstream of first branch throttling set 9 is located at along the flow direction of refrigerant, First Heat Exchanger 5.
In order to obtain preferable reducing pressure by regulating flow effect, first branch throttling set 9 is electric expansion valve.
As shown in Figure 1, First Heat Exchanger 5 is set to the outlet end of evaporator 4 and makes first by First Heat Exchanger 5
The refrigerant of refrigerant and 4 outlet end of evaporator in branch 200 exchanges heat.
As shown in Figure 1, the second heat exchanger 6 is set to the outlet end of condenser 2 and makes first by the second heat exchanger 6
The refrigerant of refrigerant and 2 outlet end of condenser in branch 200 exchanges heat.
As shown in Figure 1, being also set up in the first branch 200 to more accurately control being switched on or off for the first branch 200
There are the first solenoid valve 10 and a second solenoid valve 11, the first solenoid valve 10 is disposed in proximity to the position of 1 exhaust port side of compressor, and second
Solenoid valve 11 is set to the position at 1 air entry end of compressor.
As shown in Fig. 2, in order to carry out reducing pressure by regulating flow to second branch 300 and by the refrigerant of third heat exchanger 7,
Second branch 300 further includes second branch throttling set 12, and second branch throttling set 12 is arranged in series in 7 He of third heat exchanger
Between 4th heat exchanger 8, the upstream of second branch throttling set 12 is located at along the flow direction of refrigerant, third heat exchanger 7.
In order to obtain preferable reducing pressure by regulating flow effect, second branch throttling set 12 is electric expansion valve.
As shown in Fig. 2, third heat exchanger 7 is set to the outlet end of condenser 2 and makes second by third heat exchanger 7
The refrigerant of refrigerant and 2 outlet end of condenser in branch 300 exchanges heat.
As shown in Fig. 2, the 4th heat exchanger 8 is set to the outlet end of evaporator 4 and makes second by the 4th heat exchanger 8
The refrigerant of refrigerant and 4 outlet end of evaporator in branch 300 exchanges heat.
As shown in Fig. 2, in order to control being switched on or off for second branch 300 more accurately, second branch 300
On be additionally provided with third solenoid valve 13 and the 4th solenoid valve 14, third solenoid valve 13 is disposed in proximity to 1 exhaust port side of compressor
Position, the 4th solenoid valve 14 are set to the position at 1 air entry end of compressor.
In order to get accurately temperature data, and according to the accurately temperature data got in order to being switched to correspondence
Refrigeration mode or heating mode, heat pump system further includes detection device, and detection device is for detecting current outdoor environment temperature.
Heat pump system is precisely controlled in order to realize, heat pump system further includes controller, and controller will test device inspection
The current outdoor environment temperature measured is compared with the first temperature threshold, in order to start corresponding mode；If current outdoor
Environment temperature is more than or equal to the first temperature threshold, then the controller selection starting first branch 200, if current outdoor environment temperature is small
In the first temperature threshold, then controller selection starts second branch 300, wherein the first temperature threshold is for switching the first branch
200 corresponding refrigeration modes heating mode corresponding with the second branch 300.
In addition to this, controller is also used to control in the first solenoid valve 10 and second solenoid valve 11 of the first branch 200
At least one is opened or closed or controller is also used to control the third solenoid valve 13 and the 4th solenoid valve of second branch 300
At least one of 14 open or close.
It should be noted that the compressor 1 of the heat pump system of the utility model preferentially selects frequency-changeable compressor 1, in this way, group
The heat pump system dressed up can have preferable heat transfer effect, meanwhile, it also being capable of operational efficiency with higher.
In order to get accurate temperature data, and according to the accurate temperature data got, judge whether to connect
The logical first branch 200, or, if connect second branch 300.Detection device is also used to detect current outer tube temperature sensing package temperature
Value, the difference of Current outer loop temperature sensing package temperature value, current inner ring temperature sensing package temperature value and current inner tube temperature sensing package temperature value, operation
First operation duration of refrigeration mode, the second temperature threshold value for starting heating mode, current inner tube temperature sensing package temperature value and current
The difference of inner ring temperature sensing package temperature value, the second operation duration for running refrigeration mode；Wherein, the value range of second temperature threshold value
It is subzero 15 DEG C to 16 DEG C above freezing.
Using the embodiment of the utility model, the heat pump system includes by compressor 1, condenser 2,3 and of main throttling set
The main circulation loop 100 that evaporator 4 is connected in series, and further include the first branch 200, one end of the first branch 200 is connected to
Exhaust end, the other end of compressor 1 are connected to the suction end of compressor 1, and the first heat exchange is additionally provided in the first branch 200
Device 5, First Heat Exchanger 5 can the refrigerant to the outlet end of evaporator 4 carry out heating heat exchange, be additionally provided in the first branch 200
Second heat exchanger 6, the second heat exchanger 6 can the refrigerant to the outlet end of condenser 2 carry out cooling heat exchange；And/or it and also wraps
Second branch 300 is included, one end of second branch 300 is connected to the exhaust end of compressor 1, the other end is connected to the suction of compressor 1
Gas end, and being additionally provided with third heat exchanger 7, third heat exchanger 7 in second branch 300 can be to the outlet end of condenser 2
Refrigerant carries out heating heat exchange, the 4th heat exchanger 8 is additionally provided in second branch 300, the 4th heat exchanger 8 can be to evaporator 4
The refrigerant of outlet end carries out cooling heat exchange；In this way, by the heat exchanger in the first branch 200 can reduce heat pump system it is cold go out
Temperature, and/or, temperature of the heat pump system under extremely cold environment is able to ascend by the heat exchanger in second branch 300, is improved
The heat transfer effect of heat pump system under bad working environments environment, while also improving the operational efficiency of heat pump system, wherein the first branch
First Heat Exchanger 5 on 200 increases the return-air degree of superheat, to avoid compressor 1 by liquid hammer, in addition, in the first branch 200
Second heat exchanger 6 can reduce the cold temperature out of heat pump system.
Further, the embodiment of the utility model, the first branch 200 further include first branch throttling set 9, first throttle dress
It sets and is arranged in series between First Heat Exchanger 5 and the second heat exchanger 6, be located at the along the flow direction of refrigerant, First Heat Exchanger 5
The upstream of one branch throttling set 9；In this way, by first branch throttling set 9 to the first branch 200 and first can be passed through
The refrigerant of heat exchanger 5 carries out reducing pressure by regulating flow, to enter in the second heat exchanger 6.
Further, the embodiment of the utility model, first branch throttling set 9 are electric expansion valve；In this way, working as the first branch
When throttling set 9 is electric expansion valve, the effect of the reducing pressure by regulating flow of first branch throttling set 9 is preferable.
Embodiment according to the present utility model additionally provides a kind of controlling party of heat pump system corresponding to heat pump system
Method.As shown in figure 3, the flow diagram of the embodiment for the control method of the heat pump system of the utility model；This method is extremely
Include: less
S310 obtains detection information detected by the detection device of heat pump system；
S320, according to detection information judge whether to connect heat pump system the first branch 200 or second of heat pump system
Road 300；
S330, if the corresponding numerical value of detection information meets pre-set on-condition, the controller of heat pump system is connect
The logical first branch 200 or second branch 300.Wherein, detection information includes the first detection information and the second detection information, wherein
First detection information corresponds to the refrigeration mode of heat pump system, and the first detection information is included at least with the next item down: current outer tube sense
Thermometer bulb temperature value Y1, Current outer loop temperature sensing package temperature value X1, current inner ring temperature sensing package temperature value U1, current inner tube temperature sensing package temperature
Value Z1、△T1=U1-Z1And the first operation duration t of operation refrigeration mode1；Second detection information corresponds to the system of heat pump system
Heat pattern, the second detection information at least further include with the next item down: current outer tube temperature sensing package temperature value Y2, starting heating mode the
Two temperature thresholds, Current outer loop temperature sensing package temperature value X2, current inner tube temperature sensing package temperature value Z2, current inner ring temperature sensing package temperature value
U2、△T2=Z2-U2And the second operation duration t of operation refrigeration mode2。
If detection information meets pre-set condition, the controller of heat pump system connects the first branch 200 or the second
Branch 300 specifically includes the following steps:
In the first operation duration t1, if Y1-X1>=0 and △ T1Less than or equal to preset third temperature threshold, then heat pump system
The controller of system connects the first branch 200, alternatively,
In the second operation duration t2It is interior, if current outer tube temperature sensing package temperature value Y2In second temperature threshold value, and △ T2Greatly
In being equal to the 4th temperature threshold, then the controller of heat pump system connects second branch 300.
Under conditions of meeting the connection first branch 200, controller can connect the first branch 200, conversely, closing meeting
It closes under conditions of the first branch 200, controller can also close the first branch 200, with energy saving.Specifically, first
Operation duration t1It is interior, if Y1-X1>=0 and △ T1 is greater than preset third temperature threshold, then controller closes the first branch 200,
In, the value of third temperature threshold is 5 DEG C.
Under conditions of meeting connection second branch 300, controller can connect second branch 300, conversely, closing meeting
It closes under conditions of second branch 300, controller can also close second branch 300, with energy saving.Specifically, second
Operation duration t2It is interior, if current outer tube temperature sensing package temperature value Y2In second temperature threshold value, and △ T2Less than the 4th temperature threshold
Value, then controller closes second branch 300, wherein the value of the 4th temperature threshold is 5 DEG C.
To sum up, it will be readily appreciated by those skilled in the art that under the premise of not conflicting, above-mentioned each advantageous manner can be certainly
It combined, be superimposed by ground.
The above description is only the embodiments of the present invention, is not intended to limit the utility model, for this field
Technical staff for, various modifications and changes may be made to the present invention.Within the spirit and principle of the utility model,
Any modification, equivalent replacement, improvement and so on should be included within the scope of the claims of the utility model.
Claims (17)
1. a kind of heat pump system, which is characterized in that the heat pump system includes by compressor (1), condenser (2), main throttling dress
Set (3) and main circulation loop (100) that evaporator (4) is connected in series,
And further include the first branch (200), one end of the first branch (200) is connected to the exhaust end of compressor (1), another
One end is connected to the suction end of compressor (1), and is additionally provided on the first branch (200) First Heat Exchanger (5), described
First Heat Exchanger (5) can carry out heating heat exchange, the first branch (200) to the refrigerant of the outlet end of the evaporator (4)
On be additionally provided with the second heat exchanger (6), second heat exchanger (6) can refrigerant to the outlet end of the condenser (2) into
Row cooling heat exchange；
And/or and further include second branch (300), one end of the second branch (300) is connected to the row of compressor (1)
Gas end, the other end are connected to the suction end of compressor (1), and are additionally provided with third heat exchanger on the second branch (300)
(7), the third heat exchanger (7) can carry out heating heat exchange to the refrigerant of the outlet end of the condenser (2), and described second
The 4th heat exchanger (8) is additionally provided on road (300), the 4th heat exchanger (8) can be to the outlet end of the evaporator (4)
Refrigerant carries out cooling heat exchange.
2. heat pump system as described in claim 1, which is characterized in that the first branch (200) further includes first branch section
It flows device (9), the first branch throttling set (9) is arranged in series in the First Heat Exchanger (5) and second heat exchanger
(6) between, the upstream of first branch throttling set (9) is located at along the flow direction of refrigerant, the First Heat Exchanger (5).
3. heat pump system as claimed in claim 2, which is characterized in that the first branch throttling set (9) is electronic expansion
Valve.
4. heat pump system as described in claim 1, which is characterized in that
The First Heat Exchanger (5) is set to the outlet end of the evaporator (4) and is made by the First Heat Exchanger (5)
The refrigerant of refrigerant and the evaporator (4) outlet end in the first branch (200) exchanges heat.
5. heat pump system as described in claim 1, which is characterized in that
Second heat exchanger (6) is set to the outlet end of the condenser (2) and is made by second heat exchanger (6)
The refrigerant of refrigerant and the condenser (2) outlet end in the first branch (200) exchanges heat.
6. heat pump system as described in claim 1, which is characterized in that
The first solenoid valve (10) and second solenoid valve (11), first solenoid valve are additionally provided on the first branch (200)
(10) it is disposed in proximity to the position of the compressor (1) exhaust port side, the second solenoid valve (11) is set to the compressor
(1) position at air entry end.
7. heat pump system as described in claim 1, which is characterized in that the second branch (300) further includes second branch section
It flows device (12), the second branch throttling set (12) is arranged in series in the third heat exchanger (7) and the 4th heat exchange
Between device (8), the upstream of second branch throttling set (12) is located at along the flow direction of refrigerant, the third heat exchanger (7).
8. heat pump system as claimed in claim 7, which is characterized in that the second branch throttling set (12) is electronic expansion
Valve.
9. heat pump system as described in claim 1, which is characterized in that
The third heat exchanger (7) is set to the outlet end of the condenser (2) and is made by the third heat exchanger (7)
The refrigerant of refrigerant and the condenser (2) outlet end in the second branch (300) exchanges heat.
10. heat pump system as described in claim 1, which is characterized in that
4th heat exchanger (8) is set to the outlet end of the evaporator (4) and is made by the 4th heat exchanger (8)
The refrigerant of refrigerant and the evaporator (4) outlet end in the second branch (300) exchanges heat.
11. such as the described in any item heat pump systems of claim 1-10, which is characterized in that
Third solenoid valve (13) and the 4th solenoid valve (14), the third solenoid valve are additionally provided on the second branch (300)
(13) it is disposed in proximity to the position of the compressor (1) exhaust port side, the 4th solenoid valve (14) is set to the compressor
(1) position at air entry end.
12. heat pump system as claimed in claim 11, which is characterized in that the heat pump system further includes detection device, described
Detection device is for detecting current outdoor environment temperature.
13. heat pump system as claimed in claim 12, which is characterized in that
The heat pump system further includes controller, the controller by the detection device detect current outdoor environment temperature with
First temperature threshold is compared, in order to start corresponding mode；If current outdoor environment temperature is more than or equal to described first
Temperature threshold, then the controller selection starts the first branch (200), if current outdoor environment temperature is less than described first
Temperature threshold, then the controller selection starts the second branch (300), wherein first temperature threshold is for switching
The corresponding refrigeration mode of the first branch (200) heating mode corresponding with the second branch (300).
14. heat pump system as claimed in claim 13, which is characterized in that
When further including the first solenoid valve (10) and second solenoid valve (11):
The controller be also used to control the first branch (200) first solenoid valve (10) and the second solenoid valve
At least one of (11) it opens or closes, or
The controller be also used to control the second branch (300) the third solenoid valve (13) and the 4th solenoid valve
At least one of (14) it opens or closes.
15. heat pump system as described in claim 1, which is characterized in that
The compressor (1) is frequency-changeable compressor.
16. heat pump system as claimed in claim 13, which is characterized in that the detection device is also used to detect current outer tube sense
Thermometer bulb temperature value, Current outer loop temperature sensing package temperature value, current inner ring temperature sensing package temperature value and current inner tube temperature sensing package temperature value
Difference, the first operation duration for running refrigeration mode, second temperature threshold value, the current inner tube temperature sensing package of the starting heating mode
The difference of temperature value and current inner ring temperature sensing package temperature value, the second operation duration for running refrigeration mode.
17. heat pump system as claimed in claim 16, which is characterized in that
The value range of the second temperature threshold value is subzero 15 DEG C to 16 DEG C above freezing.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820745999.6U CN208254012U (en) | 2018-05-18 | 2018-05-18 | Heat pump system |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820745999.6U CN208254012U (en) | 2018-05-18 | 2018-05-18 | Heat pump system |
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| CN208254012U true CN208254012U (en) | 2018-12-18 |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108548345A (en) * | 2018-05-18 | 2018-09-18 | 珠海格力电器股份有限公司 | Heat pump system and control method thereof |
| CN110906500A (en) * | 2019-12-11 | 2020-03-24 | 宁波奥克斯电气股份有限公司 | Refrigeration control method and device of air conditioner and air conditioner |
-
2018
- 2018-05-18 CN CN201820745999.6U patent/CN208254012U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108548345A (en) * | 2018-05-18 | 2018-09-18 | 珠海格力电器股份有限公司 | Heat pump system and control method thereof |
| CN110906500A (en) * | 2019-12-11 | 2020-03-24 | 宁波奥克斯电气股份有限公司 | Refrigeration control method and device of air conditioner and air conditioner |
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