CN207299599U - A kind of heat pump system that can realize single/double stage switching - Google Patents
A kind of heat pump system that can realize single/double stage switching Download PDFInfo
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- CN207299599U CN207299599U CN201720697620.4U CN201720697620U CN207299599U CN 207299599 U CN207299599 U CN 207299599U CN 201720697620 U CN201720697620 U CN 201720697620U CN 207299599 U CN207299599 U CN 207299599U
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- 238000004146 energy storage Methods 0.000 claims abstract description 44
- 238000010438 heat treatment Methods 0.000 claims abstract description 22
- 150000001875 compounds Chemical class 0.000 claims abstract description 9
- 230000008676 import Effects 0.000 claims abstract description 4
- 239000003507 refrigerant Substances 0.000 claims description 16
- 230000008901 benefit Effects 0.000 abstract description 4
- 238000010521 absorption reaction Methods 0.000 description 3
- 230000000694 effects Effects 0.000 description 3
- 238000005516 engineering process Methods 0.000 description 3
- 238000000034 method Methods 0.000 description 3
- 230000008569 process Effects 0.000 description 3
- 238000005057 refrigeration Methods 0.000 description 3
- 230000006835 compression Effects 0.000 description 2
- 238000007906 compression Methods 0.000 description 2
- 125000004122 cyclic group Chemical group 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 238000001704 evaporation Methods 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000008859 change Effects 0.000 description 1
- 238000001816 cooling Methods 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 230000007257 malfunction Effects 0.000 description 1
- 230000009897 systematic effect Effects 0.000 description 1
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Abstract
The utility model discloses a kind of heat pump system that can realize single/double stage switching, wherein, primary cycle circuit includes evaporator, four-way valve, first-stage condenser, condenser/evaporator and the one-stage expansion valve being sequentially connected, four-way valve one end connects the import of stage compressor, the other end connects the outlet of stage compressor, one-stage expansion valve connection evaporator；Secondary cycle circuit includes split-compressor, secondary condenser, the compound expansion valve being sequentially connected, compound expansion valve connection condenser/evaporator, condenser/evaporator connection split-compressor；The outlet of secondary condenser connects energy storage canister through valve all the way, and another way is connected with energy storage canister again after the outlet connection of first-stage condenser and valve；The outlet connection circulating pump of energy storage canister, the outlet of circulating pump are connected with secondary condenser, and energy storage canister is connected through energy supply pump with end system, and the circuit of end system is connected with energy storage canister.The utility model has the advantages that to run in Heating Season efficient stable.
Description
Technical field
Heat pump application field is the utility model is related to, more particularly to a kind of heat pump system that can realize single/double stage switching.
Background technology
It is mainly currently on the market air source heat pump and conventional overlapping heat pump unit similar to unit, air source heat pump is mainly asked
When topic is heating, the heating capacity of air source heat pump is larger with variation of ambient temperature, and heating load is unstable, when environment temperature is high,
Heating capacity is big, and when environment temperature is low, heating capacity is small, and the heat demand with building is on the contrary, cause low ambient temperature to meet to use
Can demand.In addition, outdoor environment temperature is low so that the evaporating pressure and evaporating temperature of heat pump cycle are low, so as to cause compressor
Compression ratio increases, and heating capacity drastically reduces, or even cisco unity malfunction, during defrost, absorbs the heat inside room, influences to adopt
Warm effect；Conventional overlapping heat pump unit, whole Heating Season are twin-stage operation, and system effectiveness is low, twin-stage inverse operation during defrost,
The heat inside room is absorbed, heating effect is influenced, without refrigerating function.
Utility model content
The purpose of the utility model embodiment is in view of the above-mentioned defects in the prior art, there is provided a kind of efficiently steady in Heating Season
That runs surely can realize the heat pump system of single/double stage switching.
To achieve these goals the technical scheme adopted by the utility model is that：
A kind of heat pump system that can realize single/double stage switching, including primary cycle circuit and secondary cycle circuit；
The primary cycle circuit include be sequentially connected evaporator, four-way valve, first-stage condenser, Condensation-Evaporator and
One-stage expansion valve, the import of four-way valve one end connection stage compressor, the other end connects the outlet of stage compressor, described
One-stage expansion valve connects evaporator；
The secondary cycle circuit includes the split-compressor, secondary condenser, the compound expansion valve that are sequentially connected, and described two
Level expansion valve connection Condensation-Evaporator, the Condensation-Evaporator connect split-compressor；
The outlet of the secondary condenser is divided into two-way, connects energy storage canister through valve all the way, another way is through first-stage condenser
It is connected again with energy storage canister after being connected with the outlet of valve；
The outlet connection circulating pump of the energy storage canister, the outlet of the circulating pump are connected with secondary condenser, the energy storage
Tank is connected through energy supply pump with end system, and the circuit of the end system is connected with energy storage canister.
Auxiliary thermal source is installed in the energy storage canister.
The auxiliary thermal source is heating rod.
The valve is motor-driven valve.
The first-stage condenser and secondary condenser are heat exchanger.
The primary cycle circuit and secondary cycle circuit are used to place different refrigerants.
The beneficial effect brought of technical solution that the utility model embodiment provides is：
The utility model can realize intelligent control, have Energy Efficiency Ratio is high, heating performance is good, it is light solve the problems, such as defrost,
The advantages of scope of application is wider, simple in structure.The switching run by single/double stage, realizes unit heating in the case of low circumstance temperature
Efficient stable is run, and is also solved the problems, such as that the high circumstance temperature efficiency of conventional overlapping heat pump unit is low, cannot be freezed；Pass through energy storage canister
The comfort of the high efficiency that ensure that defrost and energy supply is set.
Brief description of the drawings
Fig. 1 is that a kind of structure for heat pump system that can realize single/double stage switching that the utility model embodiment provides is shown
It is intended to；
Fig. 2 is a kind of another kind for heat pump system that can realize single/double stage switching that the utility model embodiment provides
Cyclic process structure diagram；
Fig. 3 is a kind of another for heat pump system that can realize single/double stage switching that the utility model embodiment provides
Cyclic process structure diagram.
In figure：
1 evaporator；2 four-way valves；3 stage compressors；4 first-stage condensers；5 Condensation-Evaporators；6 one-stage expansion valves；7 two
Level compressor；8 secondary condensers；9 compound expansion valves；10 valves；11 circulating pumps；12 auxiliary thermal sources；13 energy storage canisters；14 energy supplies
Pump；15 end systems.
Embodiment
It is new to this practicality below in conjunction with attached drawing to make the purpose of this utility model, technical solution and advantage clearer
Type embodiment is described in further detail.
Referring to Fig. 1, a kind of heat pump system that can realize single/double stage switching, including primary cycle circuit and secondary cycle
Circuit；
The primary cycle circuit includes evaporator 1, four-way valve 2, first-stage condenser 4, the Condensation-Evaporator being sequentially connected
5 and one-stage expansion valve 6,2 one end of four-way valve connects the import of stage compressor 3, and the other end connects the outlet of stage compressor 3,
One-stage expansion valve 6 connect evaporator 1, evaporator 1, four-way valve 2, stage compressor 3, first-stage condenser 4, Condensation-Evaporator 5,
One-stage expansion valve 6 forms the primary cycle circuit of unit, and refrigerant is walked in primary cycle circuit, when single-stage heats, refrigerant flow direction according to
It is secondary for evaporator 1, four-way valve 2, stage compressor 3, four-way valve 2, first-stage condenser 4, Condensation-Evaporator 5, one-stage expansion valve 6,
Evaporator 1, refrigeration and during defrost, refrigerant flow direction be followed successively by through first-stage condenser 4, four-way valve 2, stage compressor 3, four-way valve 2,
Evaporator 1, one-stage expansion valve 6, evaporator-condenser 5, first-stage condenser 4.
The secondary cycle circuit includes the split-compressor 7, secondary condenser 8, the compound expansion valve 9 that are sequentially connected, and two
Level expansion valve 9 connects Condensation-Evaporator 5, and Condensation-Evaporator 5 connects split-compressor 7；Condensation-Evaporator 5, split-compressor
7th, secondary condenser 8, compound expansion valve 9 form secondary cycle circuit, inside walk refrigerant, during heating refrigerant flow direction be followed successively by condensation-
Evaporator 5, split-compressor 7, secondary condenser 8, compound expansion valve 9, Condensation-Evaporator 5, primary cycle circuit and two level are followed
Loop back path is condensed-and evaporator 5 exchanges heat and carries out each independent circulatory system respectively, when twin-stage heats, firsts and seconds circulation
Series operation；When system defrost and refrigeration, secondary cycle circuit is out of service, the inverse operation in primary cycle circuit.
The outlet of secondary condenser 8 is divided into two-way, connects energy storage canister 13 through valve 10 all the way, another way is through first-stage condenser
4 be connected with the outlet of valve 10 after be connected again with energy storage canister 13；
The outlet connection circulating pump 11 of energy storage canister 13, the outlet of circulating pump 11 are connected with secondary condenser 8, and energy storage canister 13 passes through
Energy supply pump 14 is connected with end system 15, and the circuit of end system 15 is connected with energy storage canister 13.
In order to be heated to energy storage canister, auxiliary thermal source 12 is installed in energy storage canister 14.
Preferably, auxiliary thermal source 12 is heating rod.
For the ease of automatically controlling, valve 10 is motor-driven valve.
Preferably, first-stage condenser 4 and secondary condenser 8 are heat exchanger.
Preferably, primary cycle circuit and secondary cycle circuit are used to place different refrigerants.
The primary cycle circuit refrigerant different with secondary cycle loop configuration so that the environment temperature that unit is applicable in is lower,
Heat supply temperature higher, increases refrigerating function, makes the scope of application of unit wider.
Compared with existing air source heat pump uses technology, the present invention is switched the utility model using single/double stage, is realized and is adopted
Warm Effec-tive Function, during heating, runs for single-stage according to environment temperature intelligent control unit or twin-stage is run, environment temperature compared with
When low, system is twin-stage operation, and two circulation loops are used in series at this time, and for two level from the influence of environment temperature, heat supply is more steady
Fixed, one stage of compression is more efficient than smaller, direct heat transfer；When environment temperature is higher, system is run for single-stage, systematic energy efficiency ratio
Higher.System configuration energy storage canister, unit defrost are not heats in absorption chamber, add indoor comfort during heating.With overlapping
Heat pump is compared using technology, and the switching of single/double stage improves the overall efficiency of system, enhances the security of system, this practicality
New energy storage canister both can be individually connected with secondary condenser, and can also connect company with secondary condenser with first-stage condenser
Connect, the utility model has the advantages that to run in Heating Season efficient stable.
Referring to Fig. 2, when heating single-stage is run, primary cycle circuit refrigerant absorbs heat through evaporator 1, through four-way valve 2, one
Level compressor 3 compresses, and in 4 heat release of first-stage condenser with being exchanged heat with energy pipeline, condensed-evaporator 5, one-stage expansion valve 6 expand
After return to evaporator 1 and continue to absorb heat, and so on circulate.
The medium of energy storage canister 13, into secondary condenser 8, is returned to through circulating pump 11 after absorbing heat to first-stage condenser 4
Energy storage canister 13, and so on heat pump constantly the medium of energy storage canister is heated, the medium in energy storage canister 13 is through energy supply pump 14 and end
System 15, which is formed into a loop, gives end system heat supply.
During defrost, primary cycle circuit system antikinesis, absorption heat gives unit defrost, primary cycle from energy storage canister 13
Refrigerant flow direction be followed successively by through first-stage condenser 4, four-way valve 2, stage compressor 3, four-way valve 2, evaporator 1, one-stage expansion valve 6,
Condensation-Evaporator 5, first-stage condenser 5.Medium in energy storage canister 13 gives first-stage condenser 5 through circulating pump 11, secondary condenser 8
Defrost heat is provided.
The effect of the utility model four-way valve is by varying the flow direction of refrigerant in system, realizes refrigeration, heats or remove
The functions such as frost.
Referring to Fig. 1, when heating is run using twin-stage, primary cycle circuit endothermic process is consistent with single-stage heating operation, and two
Level circulation loop refrigerant absorbs the heat of primary cycle circuit generation from Condensation-Evaporator 5, and two are compressed in through split-compressor 7
Level condenser 8 is expanded back into Condensation-Evaporator 5 through compound expansion valve 9 and continues to absorb heat, and so on being exchanged heat with energy pipeline
Circulation.Primary cycle circuit and secondary cycle circuit it is condensed-evaporator 5 exchanges heat, form the circulatory system independently.
The medium of energy storage canister 13 returns to energy storage after absorbing heat into secondary condenser 8 through circulating pump 11 through motor-driven valve 10
Tank 13 constantly heats the medium of energy storage canister 13, and under this state, motor-driven valve 10 is opening, and first-stage condenser 4 is short-circuited, storage
Energy tank 13 is formed into a loop with end system 15 through energy supply pump 14 and gives end system heat supply.
During defrost, secondary cycle circuit is out of service, primary cycle circuit refrigerant antikinesis, and motor-driven valve 10 closes at this time
Close, heat is absorbed from energy storage canister 13 and gives unit defrost, refrigerant flow direction in primary cycle circuit is followed successively by through first-stage condenser 4, four
Port valve 2, stage compressor 3, four-way valve 2, evaporator 1, one-stage expansion valve 6, Condensation-Evaporator 5, first-stage condenser 4, energy storage canister
Medium in 13 provides defrost heat through circulating pump 11, secondary condenser 8 to first-stage condenser 4.
Referring to Fig. 3, during refrigerating operaton, primary cycle circuit antikinesis, refrigerant flow direction is followed successively by first-stage condenser 4, four
Port valve 2, stage compressor 3, four-way valve 2, evaporator 1, one-stage expansion valve 6, Condensation-Evaporator 5, first-stage condenser 4, level-one is cold
Condenser 4 is act as " evaporator " at this time, and first-stage condenser 4 absorbs the heat of medium in energy storage canister 13, the medium warp of energy storage canister 13
Circulating pump 11, secondary condenser 8, into the heat of first-stage condenser 5, are returned in first-stage condenser 4 after exchanging heat by absorption heat
To energy storage canister 13, and so on, constantly the heat of energy storage canister 13 is taken away, energy storage canister 13 is through energy supply pump 14 and 15 shape of end system
End system cooling is given into circuit.
The above, is only specific embodiment of the present utility model, but the scope of protection of the utility model is not limited to
In this, any one skilled in the art can readily occur in change in the technical scope that the utility model discloses
Or replace, it should be covered within the scope of the utility model.Therefore, the scope of protection of the utility model should be with the power
Subject to the protection domain that profit requires.
Claims (6)
1. a kind of heat pump system that can realize single/double stage switching, it is characterised in that including primary cycle circuit and secondary cycle
Circuit；
The primary cycle circuit includes evaporator, four-way valve, first-stage condenser, Condensation-Evaporator and the level-one being sequentially connected
Expansion valve, the import of four-way valve one end connection stage compressor, the other end connect the outlet of stage compressor, the level-one
Expansion valve connects evaporator；
The secondary cycle circuit includes split-compressor, secondary condenser, the compound expansion valve being sequentially connected, and the two level is swollen
Swollen valve connects Condensation-Evaporator, and the Condensation-Evaporator connects split-compressor；
The outlet of the secondary condenser is divided into two-way, connects energy storage canister through valve all the way, another way is through first-stage condenser and valve
It is connected again with energy storage canister after the outlet connection of door；
The outlet connection circulating pump of the energy storage canister, the outlet of the circulating pump are connected with secondary condenser, the energy storage canister warp
Energy supply pump is connected with end system, and the circuit of the end system is connected with energy storage canister.
2. the heat pump system according to claim 1 that can realize single/double stage switching, it is characterised in that the energy storage canister
In auxiliary thermal source is installed.
3. the heat pump system according to claim 2 that can realize single/double stage switching, it is characterised in that the auxiliary heat
Source is heating rod.
4. the heat pump system according to claim 1 that can realize single/double stage switching, it is characterised in that the valve is
Motor-driven valve.
5. the heat pump system of single/double stage switching can be realized according to claim 1-4 any one of them, it is characterised in that institute
It is heat exchanger to state first-stage condenser and secondary condenser.
6. the heat pump system according to claim 5 that can realize single/double stage switching, it is characterised in that the level-one is followed
Loop back path and secondary cycle circuit are used to place different refrigerants.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720697620.4U CN207299599U (en) | 2017-06-15 | 2017-06-15 | A kind of heat pump system that can realize single/double stage switching |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720697620.4U CN207299599U (en) | 2017-06-15 | 2017-06-15 | A kind of heat pump system that can realize single/double stage switching |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN207299599U true CN207299599U (en) | 2018-05-01 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201720697620.4U Active CN207299599U (en) | 2017-06-15 | 2017-06-15 | A kind of heat pump system that can realize single/double stage switching |
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| Country | Link |
|---|---|
| CN (1) | CN207299599U (en) |
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2017
- 2017-06-15 CN CN201720697620.4U patent/CN207299599U/en active Active
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