CN208222912U - A kind of two-stage coupling air source heat pump system - Google Patents
A kind of two-stage coupling air source heat pump system Download PDFInfo
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- CN208222912U CN208222912U CN201820395717.4U CN201820395717U CN208222912U CN 208222912 U CN208222912 U CN 208222912U CN 201820395717 U CN201820395717 U CN 201820395717U CN 208222912 U CN208222912 U CN 208222912U
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Abstract
The utility model discloses a kind of two-stage coupling air source heat pump systems, including primary system and level two, two-stage system includes compressor, condenser, expansion valve and evaporator, compressor successively returns in compressor after condenser, expansion valve and evaporator circulation after compressing refrigerant to be compressed again, is so recycled.This system further includes coupled and heat-exchange air hose, the condenser of the primary system and the evaporator of level two are respectively arranged in leading portion and back segment in coupled and heat-exchange air hose, the condensator outlet side that coupled and heat-exchange air hose corresponds to primary system is provided with heat accumulating sections, coupled and heat-exchange air hose side wall is provided between heat accumulating sections and the evaporator installation site of level two can be opened and closed air port, coupled and heat-exchange air hose is equipped with coupled and heat-exchange blower at the evaporator rear of level two, it is connected to by fresh air air hose with air draft air hose between coupled and heat-exchange air hose and air-conditioned room, fresh-air fan is installed on fresh air air hose, regulating valve is respectively connected on fresh air air hose and air draft air hose.
Description
Technical field
The utility model relates to a kind of air source heat pump systems, and in particular to a kind of two-stage coupling air source heat pump system.
Background technique
Air source heat pump is easy for installation with its, initial cost is lower, can dual-use, can satisfy heat supply in winter and summer
The features such as refrigeration, energy conservation and environmental protection, it is increasingly subject to the favor of the majority of consumers.But during popularization and application, still occur one
Series of problems:
1, when outdoor environment temperature is too low, it may appear that heating capacity is insufficient, delivery temperature increases, and system operation is unstable
Fixed situation；
2, in Central-South high humility area in use, winter outdoor environment temperature reduces, make outdoor evaporator frosting, influence be
System operates normally；
3, traditional air source heat pump system needs independent fresh air system and is used cooperatively, and cannot efficiently use indoor row
The heat of wind, causes energy waste.
For above three problem, it is thus proposed that double coupling heat pump system, i.e., by the condenser of upper level heat pump and
The evaporator of next stage heat pump is of coupled connections with a shell and tube exchanger.In this way, just having solved air source heat pump in worst cold case
The problem of lower operation heating capacity deficiency and fluctuation of service.Somebody proposes two-stage compression air source heat pump, system fortune
Row mode equally also can solve single stage compress air source heat pump heating capacity deficiency and fluctuation of service in low-temperature condition operation
Problem.Somebody proposes the waste heat of recycling indoor exhaust wind, realizes energy-efficient purpose.
But the application of air-source heat pump air conditioning system is still faced with a major issue: current two-stage coupling heat pump system
System, comes coupling evaporation device and condenser with shell and tube exchanger, single-stage air source can not be realized according to the variation of outdoor environment
The conversion of heat pump and two-stage coupling heat pump；Two-stage Compression air source heat pump also cannot achieve waste heat recycling and the outdoor of indoor exhaust wind
The frosting problem of evaporator；These problems have seriously affected the performance of air source heat pump.
Utility model content
The purpose of this utility model is to provide a kind of achievable single-stage air source heat pump and two-stage coupling air source heat pumps
Between free switching, make full use of indoor exhaust wind waste heat, realize the two-stage coupling air source heat pump of level two efficient operation
System.
This two-stage coupling air source heat pump system provided by the utility model, including primary system and level two, two
Grade system includes compressor, condenser, expansion valve and evaporator, compressor refrigerant is compressed after successively through condenser, expansion
It returns in compressor after valve and evaporator circulation and is compressed again, so recycled.This system further includes coupled and heat-exchange air hose, described
The condenser of primary system and the evaporator of level two are respectively arranged in leading portion and back segment in coupled and heat-exchange air hose, and coupling is changed
The condensator outlet side that hot air pipe corresponds to primary system is provided with heat accumulating sections, and coupled and heat-exchange air hose side wall is in heat accumulating sections and second level system
Air port can be opened and closed by being provided between the evaporator installation site of system, and coupled and heat-exchange air hose is installed at the evaporator rear of level two
There is coupled and heat-exchange blower, is connected to by fresh air air hose with air draft air hose between coupled and heat-exchange air hose and air-conditioned room, fresh air air hose
On fresh-air fan is installed, be respectively connected with regulating valve on fresh air air hose and air draft air hose.
The evaporator and condenser of the primary system and level two are fin-tube heat exchanger, and working medium medium is
Freon.
The coupled and heat-exchange blower and fresh-air fan are axial flow blower.
The regulating valve is split multi-clack control valve.
Link position of the fresh air air hose on the coupled and heat-exchange air hose is located at primary system condenser installation
The front of position, link position of the air draft air hose on coupled and heat-exchange air hose are located at the heat accumulating sections and level two evaporation
Between device installation site.
The heat storage of honeycomb structure is filled in the heat accumulating sections.
The condenser of the level two is installed in air-conditioned room.
The both ends at the both ends of the coupled and heat-exchange air hose, fresh air air hose and air draft air hose are mounted on air grille.
The side wall of the coupled and heat-exchange air hose has the mounting hole passed through for the firsts and seconds system refrigerant circulation pipe,
Sealing ring is set at mounting hole.
It is transported in the case that the utility model is run in summer operating mode and outdoor environment temperature is not very low under operating condition in winter
When row, primary system circulation can be closed, air port to be opened/closed on coupled and heat-exchange air hose is opened, outdoor air is by that can open
It closes air port and enters in coupled and heat-exchange air hose and exchange heat with the evaporator of level two, heat pump can be supplied only with level two
System provides enough low-grade energies, is used for air-conditioning heating and refrigeration.When outdoor environment temperature drops to very low in winter, using double
Grade coupling air source heat pump circulation, the air port that is opened and closed on coupled and heat-exchange air hose is closed, primary system will pass through primary system
Outdoor air tentatively heated up, and a part of this partial heat is stored in heat accumulating sections, while the air draft of air-exhausting duct
It is mixed with, further increases the temperature in coupled and heat-exchange air hose, to maintain the air into the evaporator of level two one
A relatively high temperature realizes the purpose of level two efficient operation.
Briefly, the utility model being opened and closed air port and realize two-stage air-source by coupled and heat-exchange air hose side wall
Conversion between heat pump system can improve together coupling by heat accumulating sections between two-stage air source heat pump system and indoor exhaust wind
The temperature to exchange heat in air hose realizes the efficient operation of second level air source heat pump system.
Detailed description of the invention
Fig. 1 is the arrangement schematic diagram of the utility model one embodiment.
Fig. 2 is the cross section enlarged structure schematic diagram of heat storage in heat accumulating sections in Fig. 1.
Specific embodiment
As shown in Figure 1, this two-stage coupling air source heat pump system disclosed in the present embodiment, including by level-one evaporator 1,
Stage compressor 2, one-stage expansion valve 3, first-stage condenser 4, heat accumulating sections 5 can be opened and closed air port 6, secondary evaporimeter 7, coupled and heat-exchange
Blower 8, air inlet blinds 9, outlet louver of air 10, split multi-clack control valve 11, fresh air air hose 13, air draft air hose 14, fresh air wind
Machine 15, split-compressor 16, compound expansion valve 17, fresh wind port blinds 18, exhaust outlet blinds 19, secondary condenser 20, air-conditioned room
Between 21, coupled and heat-exchange air hose 22.
Level-one evaporator 1, stage compressor 2, one-stage expansion valve 3 and first-stage condenser 4 form primary system.Dual evaporation
Device 7, split-compressor 16, compound expansion valve 17 and secondary condenser 20 form level two.Primary system and level two
Evaporator and condenser are fin-tube heat exchanger, and working medium medium is freon.Secondary condenser 20 is installed on air-conditioned room
Between in 21.
First-stage condenser 4 and secondary evaporimeter 7 are respectively arranged in leading portion and back segment in coupled and heat-exchange air hose 22, and coupling is changed
Hot air pipe corresponds to the rear installation coupled and heat-exchange blower 8 of secondary evaporimeter 7.The coupled and heat-exchange blower of the present embodiment is straight using shell
Diameter and the consistent axial flow blower of coupled and heat-exchange dust diameter.Coupled and heat-exchange blower provides power for the flowing for the air that exchanges heat.
Heat accumulating sections 5, coupled and heat-exchange air hose side is arranged in the rear of the corresponding first-stage condenser installation site of coupled and heat-exchange air hose 22
Wall, which corresponds to setting between heat accumulating sections and secondary evaporimeter, can be opened and closed air port 6.The front end of coupled and heat-exchange air hose is equipped with air inlet hundred
Leaf 9, rear end are equipped with outlet louver of air 10.
The heat storage 51 of honeycomb structure is filled in the present embodiment heat accumulating sections 5, as shown in Figure 2.The material of heat storage 51
Adsorption equilibrium quantity for the sensible heat heat-storing material that joined CaCl2 silica gel, heat storage material is 0.56kg/kg, and thermal storage density is
900kJ/kg。
First-stage condenser 4 and secondary evaporimeter 7 realize the coupling of primary system and level two in coupled and heat-exchange air hose 22
Connection is closed, coupled and heat-exchange air hose 22 is interior to be equipped with coupled and heat-exchange blower 8 at the rear of secondary evaporimeter, provides for heat exchange air flowing
Power.
Fresh air air hose 13 and air draft air hose 14, fresh air air hose 13 are connected between coupled and heat-exchange air hose 22 and air-conditioned room 21
On be connected with split multi-clack control valve 11 and fresh-air fan 15, be connected with out multi-clack control valve 11 on air draft air hose.Fresh-air fan
15 using housing diameter and the consistent axial flow blower of fresh air dust diameter.Company of the fresh air air hose 13 in 22 side wall of coupled and heat-exchange air hose
Connect the front that position is located at 4 installation site of first-stage condenser.Connection position set of the air draft air hose 14 on coupled and heat-exchange air hose 22
Between heat accumulating sections 5 and the installation site of secondary evaporimeter 7.The both ends of fresh air air hose and air draft air hose are separately installed with fresh wind port
Blinds 18 and exhaust outlet blinds 19.The fresh-air volume entered in air-conditioned room is adjusted by split multi-clack control valve 11.
The side wall of coupled and heat-exchange air hose 22 has the mounting hole passed through for firsts and seconds system refrigerant circulation pipe, mounting hole
Place's setting sealing ring.
Appellation when evaporator and condenser are operating condition operations in winter in Fig. 1, if being run in Fig. 1 in summer condition
Evaporator is used as condenser, and condenser is as evaporator.
The present embodiment can have two kinds of operational modes of low-temperature operation modes and nominal situation mode, when air source heat pump is in the summer
Ji Yunhang uses nominal situation mode when outdoor environment temperature is not very low winter operation.When winter outdoor environment temperature
When degree drops to very low, using low-temperature operation modes.
When using nominal situation mode, first order air source heat pump circulation is closed, air port 6 can be opened and closed and opened, it is outdoor
Air enters in coupled and heat-exchange air hose from the air inlet blinds 9 of coupled and heat-exchange air hose 22 with that can be opened and closed air port 6, with secondary evaporimeter
7 exchange heat, and can supply heat pump system only with level two and provide enough low-grade energies, are used for air-conditioning heating system
It is cold.
When using low-temperature operation modes, air port 6 can be opened and closed and closed, primary system will pass through the outdoor of first-stage condenser 4
Air is tentatively heated up, and a part of this partial heat is stored in the honeycomb heat storage in heat accumulating sections 5, simultaneously
The air draft of air-exhausting duct is mixed with, and further increases its temperature, to maintain the air into the evaporator of level two at one
Relatively high temperature realizes the efficient operation of level two.
Claims (9)
1. a kind of two-stage coupling air source heat pump system, including primary system and level two, two-stage system include compressor,
Condenser, expansion valve and evaporator, compressor successively return to after condenser, expansion valve and evaporator circulation after compressing refrigerant
Compressed in compressor, so recycled again, it is characterised in that: it further includes coupled and heat-exchange air hose, the primary system it is cold
Condenser and the evaporator of level two are respectively arranged in leading portion and back segment in coupled and heat-exchange air hose, coupled and heat-exchange air hose corresponding one
The condensator outlet side of grade system is provided with heat accumulating sections, and coupled and heat-exchange air hose side wall is pacified in the evaporator of heat accumulating sections and level two
Air port to be opened/closed is provided between holding position, coupled and heat-exchange air hose is equipped with coupled and heat-exchange at the evaporator rear of level two
Blower is connected to by fresh air air hose with air draft air hose between coupled and heat-exchange air hose and air-conditioned room, is equipped on fresh air air hose new
Regulating valve is respectively connected on wind blower, fresh air air hose and air draft air hose.
2. two-stage coupling air source heat pump system as described in claim 1, it is characterised in that: the primary system and second level system
The evaporator and condenser of system are fin-tube heat exchanger, and working medium medium is freon.
3. two-stage coupling air source heat pump system as described in claim 1, it is characterised in that: the coupled and heat-exchange blower and new
Wind blower is axial flow blower.
4. two-stage coupling air source heat pump system as described in claim 1, it is characterised in that: the regulating valve is split leafy
Regulating valve.
5. two-stage coupling air source heat pump system as described in claim 1, it is characterised in that: the fresh air air hose is in the coupling
The front that the link position on heat exchange air hose is located at the primary system condenser installation site is closed, the air draft air hose is coupling
The link position to exchange heat on air hose is between the heat accumulating sections and level two evaporator installation site.
6. two-stage coupling air source heat pump system as claimed in claim 1 or 5, it is characterised in that: filling in the heat accumulating sections
There is the heat storage of honeycomb structure.
7. two-stage coupling air source heat pump system as described in claim 1, it is characterised in that: the condenser of the level two
It is installed in air-conditioned room.
8. two-stage coupling air source heat pump system as described in claim 1, it is characterised in that: the two of the coupled and heat-exchange air hose
The both ends at end, fresh air air hose and air draft air hose are mounted on air grille.
9. two-stage coupling air source heat pump system as described in claim 1, it is characterised in that: the side of the coupled and heat-exchange air hose
Wall has the mounting hole passed through for the firsts and seconds system refrigerant circulation pipe, and sealing ring is arranged at mounting hole.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820395717.4U CN208222912U (en) | 2018-03-22 | 2018-03-22 | A kind of two-stage coupling air source heat pump system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820395717.4U CN208222912U (en) | 2018-03-22 | 2018-03-22 | A kind of two-stage coupling air source heat pump system |
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| Publication Number | Publication Date |
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| CN208222912U true CN208222912U (en) | 2018-12-11 |
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ID=64503402
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| CN201820395717.4U Active CN208222912U (en) | 2018-03-22 | 2018-03-22 | A kind of two-stage coupling air source heat pump system |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111720883A (en) * | 2020-07-21 | 2020-09-29 | 尹培栋 | Heating equipment and control method thereof |
-
2018
- 2018-03-22 CN CN201820395717.4U patent/CN208222912U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111720883A (en) * | 2020-07-21 | 2020-09-29 | 尹培栋 | Heating equipment and control method thereof |
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