CN108645028A - A kind of regenerative type air source heat pump system suitable for low temperature environment - Google Patents
A kind of regenerative type air source heat pump system suitable for low temperature environment Download PDFInfo
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- CN108645028A CN108645028A CN201810536855.4A CN201810536855A CN108645028A CN 108645028 A CN108645028 A CN 108645028A CN 201810536855 A CN201810536855 A CN 201810536855A CN 108645028 A CN108645028 A CN 108645028A
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- arrival end
- outlet end
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Classifications
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24H—FLUID HEATERS, e.g. WATER OR AIR HEATERS, HAVING HEAT-GENERATING MEANS, e.g. HEAT PUMPS, IN GENERAL
- F24H4/00—Fluid heaters characterised by the use of heat pumps
- F24H4/02—Water heaters
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24D—DOMESTIC- OR SPACE-HEATING SYSTEMS, e.g. CENTRAL HEATING SYSTEMS; DOMESTIC HOT-WATER SUPPLY SYSTEMS; ELEMENTS OR COMPONENTS THEREFOR
- F24D3/00—Hot-water central heating systems
- F24D3/02—Hot-water central heating systems with forced circulation, e.g. by pumps
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F25—REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
- F25B—REFRIGERATION MACHINES, PLANTS OR SYSTEMS; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS
- F25B30/00—Heat pumps
- F25B30/06—Heat pumps characterised by the source of low potential heat
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F25—REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
- F25B—REFRIGERATION MACHINES, PLANTS OR SYSTEMS; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS
- F25B41/00—Fluid-circulation arrangements
- F25B41/30—Expansion means; Dispositions thereof
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F25—REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
- F25B—REFRIGERATION MACHINES, PLANTS OR SYSTEMS; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS
- F25B43/00—Arrangements for separating or purifying gases or liquids; Arrangements for vaporising the residuum of liquid refrigerant, e.g. by heat
Abstract
The present invention relates to field of heating ventilation air conditioning, more particularly to a kind of regenerative type air source heat pump system suitable for low temperature environment.Including air injection enthalpy-increasing compressor（1）, the first water pump（2）, high-temperature heat accumulation water tank（3）, the first water valve（4）, the second water valve（6）, the second water pump（8）, third water valve（9）, the 4th water valve（11）, condenser（13）, first throttle valve（14）, the first solenoid valve（16）, economizer（17）, second throttle（18）, wind-cooled evaporator（19）, intermediate heater（20）, second solenoid valve（21）, third solenoid valve（23）, gas-liquid separator（25）, the 5th water valve（27）, the 6th water valve（41）, the 7th water valve（42）, which can not only improve the heating capacity of system at low ambient temperatures, make the operation of system high efficiency, stabilization, moreover it is possible to which the thermal storage density for improving hot water reduces the volume of storage heater.
Description
Technical field
The present invention relates to field of heating ventilation air conditioning, and in particular to a kind of regenerative type air source heat pump system suitable for low temperature environment
System.
Background technology
The heating capacity of air source heat pump reduces with the reduction of outdoor temperature（It is generally difficult when environment temperature is less than -5 DEG C
With operation）, and the thermic load of building increases with the reduction of outdoor temperature, this contradiction results in air source heat pump and exists
Application under low temperature environment is greatly limited, existing Two-stage Compression（Air injection enthalpy-increasing）Although heat pump system can improve
This case, but the Energy Efficiency Ratio of system is still relatively low, and heating capacity is still insufficient.This problem of air source heat pump not yet obtains so far
It is solved to good, gives and solve there is an urgent need for researcher.
Invention content
To solve this problem, the present invention provides a kind of regenerative type air source heat pump system suitable for low temperature environment, can
System Energy Efficiency Ratio at low ambient temperatures and heating capacity are improved by a relatively large margin, ensure the operation of system high efficiency, stabilization.
In order to achieve the above objectives, the present invention is achieved through the following technical solutions：
A kind of regenerative type air source heat pump system suitable for low temperature environment, including air injection enthalpy-increasing compressor, the first water pump, high temperature
Hot water storage tank, the first water valve, the second water valve, the second water pump, third water valve, the 4th water valve, condenser, first throttle valve, first
Solenoid valve, economizer, second throttle, wind-cooled evaporator, intermediate heater, second solenoid valve, third solenoid valve, gas-liquid separation
Device, the 5th water valve, the 6th water valve, the 7th water valve, the system can provide higher heating capacity and ensure hot water at low ambient temperatures
With higher thermal storage density.
A kind of regenerative type air source heat pump system suitable for low temperature environment, the exhaust outlet of air injection enthalpy-increasing compressor
Be connected to the arrival end in condenser inner refrigerant channel, the outlet end of coolant channel simultaneously with the arrival end of first throttle valve and
The arrival end of first solenoid valve is connected to, and the outlet end of first throttle valve is connected to the arrival end of middle pressure passageway in economizer, middle pressure
The outlet end in channel is connected to the arrival end in intermediate heater inner refrigerant channel, and the outlet end of coolant channel is simultaneously with second
The arrival end of solenoid valve is connected to the arrival end of third solenoid valve, the spray of the outlet end and air injection enthalpy-increasing compressor of third solenoid valve
Gas port is connected to, and the outlet end of the first solenoid valve be connected to the arrival end of high-pressure channel in economizer, the outlet end of high-pressure channel and
The arrival end of second throttle is connected to, and the outlet end of second throttle is connected to the arrival end of wind-cooled evaporator, wind-cooled evaporator
Outlet end simultaneously be connected to the arrival end of the outlet end of second solenoid valve and gas-liquid separator, the outlet end of gas-liquid separator and
The air entry of air injection enthalpy-increasing compressor is connected to, and hot water in high-temperature heat accumulation water tank is entered with the first water pump respectively by five through-holes
Mouthful end, the outlet end of the 5th water valve, the arrival end of the first water valve, the outlet end of the second water valve and the 6th water valve arrival end connect
Logical, the outlet end of the first water pump is connected to the arrival end of hot water channel in the outlet end of the 6th water valve and intermediate heater simultaneously,
The outlet end of hot water channel is connected to the arrival end of the 5th water valve, the arrival end of the second water pump while the outlet end with the first water valve
It is connected to the outlet end of third water valve, the arrival end of third water valve is connected to heating room, the outlet end of the second water pump and condensation
The arrival end connection of hot water channel in device, the outlet end of hot water channel by the 7th water valve respectively with the arrival end of the second water valve and
The arrival end of 4th water valve is connected to, and the outlet end of the 4th water valve is connected to heating room.
A kind of regenerative type air source heat pump system suitable for low temperature environment, the system further include medium temperature regenerator water
Case, the 6th water valve, the 7th water valve, the 8th water valve.
A kind of regenerative type air source heat pump system suitable for low temperature environment, medium temperature regenerator water tank is interior to be equipped with partition
Formula heat exchanger, is used for the heat exchange of hot water and refrigerant, and hot water passes through two through-holes outlet end and the 8th with the 7th water valve respectively
The arrival end of water valve is connected to, and the arrival end of the 7th water valve is connected to the arrival end of the 5th water valve, the outlet end of the 8th water valve and the
The arrival end of one water pump is connected to；The arrival end of coolant channel is connected to the outlet end of high-pressure channel in economizer, and refrigerant is logical
The outlet end in road is connected to the arrival end of second throttle, the 6th waterway electromagnetic valve be arranged connect the first water pump arrival end and
Corresponding on the pipeline between the through-hole of high-temperature heat accumulation water tank.
In conclusion a kind of regenerative type air source heat pump system suitable for low temperature environment of the present invention can not only be carried substantially
The heating capacity of high system at low ambient temperatures, makes the operation of system high efficiency, stabilization, moreover it is possible to improve the thermal storage density of hot water, reduce
The volume of storage heater has many advantages, such as that effect is good, at low cost, easy to spread.
The foregoing general introduction for the application, therefore necessarily have the case where simplified, summary and omissions of detail；This field
Technical staff is it should be appreciated that overview section is only the explanation to the application, and is not to be taken as any restriction to the application.
Device and/or other of method and/or other themes aspects, features and advantages described in this specification will be due to this explanation
The elaboration of book and be apparent from.Overview section be for imported in a manner of a kind of simplification it is multiple will be in detailed description below
The concept that part further describes.This overview section is neither key feature or necessary special for determining claimed subject
Sign, nor be used as determining the supplementary means of the range of claimed subject.
Description of the drawings
It is combined by following description and appended claims and with attached drawing, will more fully be clearly understood that this
The above and other feature of application.It should be appreciated that these attached drawings are only the descriptions to several embodiments of the application, it is not considered that
It is the restriction to the application range, by attached drawing, teachings herein will be obtained definitely and be explained in detail.
Fig. 1 is that a kind of structure type one of regenerative type air source heat pump system suitable for low temperature environment of the present invention is illustrated
Figure.
Fig. 2 is that a kind of structure type two of regenerative type air source heat pump system suitable for low temperature environment of the present invention is illustrated
Figure.
Specific implementation mode
In following specific embodiment part, the attached drawing for being combined as a specification part illustrates.In attached drawing
In, identical/similar label usually indicates identical/similar component, unless being otherwise noted in specification.Specific implementation mode,
The restriction being not considered as the embodiment that illustrates to the application described in drawings and claims.Not inclined
In the case of the spirit or scope of theme from the application statement, the other embodiment of the application may be used, and can be with
Other variations are made to the application.It is easily understood that can in this specification general description, diagram is said in attached drawing
The various aspects of bright the application carry out various differently composed configurations, replacement, combination, design, and all these changes are all aobvious
So in the contemplation, it and constitutes part of this application.
Embodiment 1：
Referring to Fig.1, a kind of regenerative type air source heat pump system suitable for low temperature environment, including air injection enthalpy-increasing compressor 1, condensation
Device 13, the first electric expansion valve 14, economizer 17, the second electric expansion valve 18, wind-cooled evaporator 19, gas-liquid separator 25, in
Between heater 20, high-temperature heat accumulation water tank 3, the first water pump 2, the second water pump 8, the first refrigerant solenoid valve 16, second refrigerant electricity
Magnet valve 21, third refrigerant solenoid valve 23, the first waterway electromagnetic valve 4, the second waterway electromagnetic valve 6, third waterway electromagnetic valve 9,
Four waterway electromagnetic valves 11, the 5th waterway electromagnetic valve 27, the 6th waterway electromagnetic valve 41, the 7th waterway electromagnetic valve 42, the first refrigerant
Pipeline 15, second refrigerant pipeline 22, third refrigerant line 24, the first hot water line 5, the second hot water line 7, third hot water
Pipeline 10, the 4th hot water line 12, the 5th hot water line 26, the 6th hot water line 40, the exhaust outlet of air injection enthalpy-increasing compressor 1 with
The arrival end in 13 inner refrigerant channel of condenser is connected to, and the outlet end of coolant channel enters with the first electric expansion valve 14 simultaneously
Mouth end is connected to the arrival end of the first refrigerant line 15, and the outlet end of the first electric expansion valve 14 and middle pressure in economizer 17 are logical
The arrival end in road is connected to, and the outlet end of middle pressure passageway is connected to the arrival end in 20 inner refrigerant channel of intermediate heater, refrigerant
The outlet end in channel is connected to the arrival end of the arrival end of second refrigerant pipeline 22 and third refrigerant line 24 simultaneously, third
The outlet end of refrigerant line 24 is connected to the puff prot of air injection enthalpy-increasing compressor 1, the outlet end of the first refrigerant line 15 with
The arrival end connection of high-pressure channel in economizer 17, the outlet end of high-pressure channel and the arrival end of the second electric expansion valve 18 connect
Logical, the outlet end of the second electric expansion valve 18 is connected to the arrival end of wind-cooled evaporator 19, and the outlet end of wind-cooled evaporator 19 is same
When be connected to the arrival end of the outlet end of second refrigerant pipeline 22 and gas-liquid separator 25, the outlet end of gas-liquid separator 25 with
The air entry of air injection enthalpy-increasing compressor 1 is connected to, the hot water in high-temperature heat accumulation water tank 3 by five through-holes respectively with the first water pump 2
Arrival end, the outlet end of the 5th hot water line 26, the arrival end of the first hot water line 5, the second hot water line 7 outlet end and
The arrival end of 6th hot water line 40 is connected to, the outlet end of the first water pump 2 simultaneously with the outlet end of the 6th hot water line 40 and in
Between in heater 20 hot water channel arrival end connection, the outlet end of hot water channel and the arrival end of the 5th hot water line 26 connect
Logical, the arrival end of the second water pump 8 is connected to the outlet end of the outlet end of the first hot water line 5 and third hot water line 10 simultaneously,
The arrival end of third hot water line 10 is connected to heating room, the outlet end of the second water pump 8 and hot water channel in condenser 13
Arrival end is connected to, the outlet end of hot water channel by the 7th waterway electromagnetic valve 42 respectively with the arrival end of the second hot water line 7 and
The arrival end of 4th hot water line 12 is connected to, and the outlet end of the 4th hot water line 12 is connected to heating room, the first refrigerant electricity
Magnet valve 16 is arranged on the first refrigerant line 15, and second refrigerant solenoid valve 21 is arranged on second refrigerant pipeline 22, the
Three refrigerant solenoid valves 23 are arranged on third refrigerant line 24, and the first waterway electromagnetic valve 4 is arranged in the first hot water line 5
On, the second waterway electromagnetic valve 6 is arranged on the second hot water line 7, and third waterway electromagnetic valve 9 is arranged in third hot water line 10
On, the 4th waterway electromagnetic valve 11 is arranged on the 4th hot water line 12, and the 5th waterway electromagnetic valve 27 is arranged in the 5th hot water line
On 26, the 6th waterway electromagnetic valve 41 is arranged on the 6th hot water line 40.High-temperature heat accumulation water tank 3 can have to prevent hot and cold water
The water tank of mixed function.
The operation principle of system is as follows：
1）When outdoor environment temperature is higher than the first balance point temperature（Such as -3 DEG C）When, the operation principle of system is by heat supply heat-accumulating process
It is formed with pure heat supplying process, specially：
1.1）When the water temperature in high-temperature heat accumulation water tank 15 is less than setting value（Such as 60 DEG C）When, start heat supply heat-accumulating process, each valve
Control it is as follows：First refrigerant solenoid valve 16, the first waterway electromagnetic valve 4, the second waterway electromagnetic valve 6, third waterway electromagnetic valve
9, the 4th waterway electromagnetic valve 11 and the 7th waterway electromagnetic valve 42 are opened, the first electric expansion valve 14, second refrigerant solenoid valve 21,
Third refrigerant solenoid valve 23, the 5th waterway electromagnetic valve 27 and the 6th waterway electromagnetic valve 41 are closed, and the second electric expansion valve 18 is just
Often action, the flow of refrigerant are as follows：1 → condenser of air injection enthalpy-increasing compressor 13（Heat release）→ the first refrigerant solenoid valve 16 →
17 → the second electric expansion valve 18 of economizer（Throttling）→ wind-cooled evaporator 19（Heat absorption）25 → air injection enthalpy-increasing of → gas-liquid separator
Compressor 1, heating return water pressurize through the second water pump 8 together with the water in high-temperature heat accumulation water tank 3 it is laggard in condenser 13, it is high
It is returned to respectively in high-temperature heat accumulation water tank 3 and the 4th hot water line 12 again after warm refrigerant heat（Into heating room）.
1.2）When the water temperature in high-temperature heat accumulation water tank 15 reaches setting value, start pure heat supplying process, the control of each valve
It is as follows：First refrigerant solenoid valve 16, third waterway electromagnetic valve 9, the 4th waterway electromagnetic valve 11 and the 7th waterway electromagnetic valve 42 are beaten
It opens, the first electric expansion valve 14, second refrigerant solenoid valve 21, third refrigerant solenoid valve 23, the first waterway electromagnetic valve 4,
Two waterway electromagnetic valves 6, the 5th waterway electromagnetic valve 27 and the 6th waterway electromagnetic valve 41 are closed, and the second electric expansion valve 18 is normally dynamic
Make, the flow of refrigerant such as heat supply heat-accumulating process, heating return water pressurize through the second water pump 8 it is laggard in condenser 13,
It is returned to after being heated by high temperature refrigerant in the 4th hot water line 12（Into heating room）.
2）When outdoor environment temperature is less than the first balance point temperature, the operation principle of system is successively by high-temperature-hot-water heat supply
Process, middle warm water's air injection enthalpy-increasing heat supplying process, Low Temperature Thermal water source heat pump heat supply process and common air injection enthalpy-increasing heat supplying process group
At specially：
2.1）When high-temperature-hot-water heat supplying process, each valve control is as follows：Air injection enthalpy-increasing compressor 1 is closed, i.e., heat pump unit stops
Work, i.e., all refrigerant solenoid valves and electric expansion valve be turned off, the second waterway electromagnetic valve 6, third waterway electromagnetic valve 9,
4th waterway electromagnetic valve 11 and the 6th waterway electromagnetic valve 41 are opened, the first waterway electromagnetic valve 4, the 5th waterway electromagnetic valve 27 and the 7th
Waterway electromagnetic valve 42 is closed, and heating return water enters high temperature through third waterway electromagnetic valve 9, the second water pump 8, the 6th waterway electromagnetic valve 41
In hot water storage tank 3, the high-temperature-hot-water in high-temperature heat accumulation water tank 3 out is through the second waterway electromagnetic valve 6 and the 4th waterway electromagnetic valve 11
Enter in heating room is rooms.
2.2）When the water temperature in high-temperature heat accumulation water tank 15 drops to 40 DEG C, warm water's air injection enthalpy-increasing heat supplying process in startup,
The control of each valve is as follows：First refrigerant solenoid valve 16, third refrigerant solenoid valve 23, third waterway electromagnetic valve 9, the 4th water
Way solenoid valve 11, the 5th waterway electromagnetic valve 27 and the 7th waterway electromagnetic valve 42 are opened, second refrigerant solenoid valve 21, the first water route
Solenoid valve 4, the second waterway electromagnetic valve 6, the 6th waterway electromagnetic valve 41 are closed, the first electric expansion valve 14 and the second electric expansion valve
18 regular events, for the flow of refrigerant on the basis of heat supply heat-accumulating process, the refrigerant come out from condenser 13 is divided into two-way,
It throttles all the way through the first electric expansion valve 14 and absorbs the heat of another way high-pressure refrigerant in the laggard middle platen pipe to economizer 17
Amount, refrigerant out enters absorb the heat from middle warm water in high-temperature heat accumulation water tank 3 in intermediate heater 20 after, through the
Three refrigerant solenoid valves 23 enter the puff prot of air injection enthalpy-increasing compressor 1, another way refrigerant from economizer 17 come out after through the
The throttling of two electric expansion valves 18 enters in wind-cooled evaporator 19, absorb the heat of vaporization of outdoor air at after gas through gas-liquid separation
Device 25 returns to the air entry of air injection enthalpy-increasing compressor 1；Middle warm water in high-temperature heat accumulation water tank 3 pressurizes laggard through the first water pump 2
Into intermediate heater 20, returned in high-temperature heat accumulation water tank 3 through the 5th waterway electromagnetic valve 27 after heating medium temperature refrigerant；Heating is returned
Water pressurizes laggard in condenser 13 through the second water pump 8, is returned to after being heated by high temperature refrigerant in the 4th hot water line 12（Into
Heating room）.
2.3）When the water temperature in high-temperature heat accumulation water tank 3 drops to 20 DEG C, start Low Temperature Thermal water source heat pump heat supply process, the mistake
The control of stroke valve compared with middle warm water's air injection enthalpy-increasing heat supplying process, the difference is that, second refrigerant solenoid valve 21 is beaten
It opens, the first refrigerant solenoid valve 16, third refrigerant solenoid valve 23 and the second electric expansion valve 18 are closed, and the flow of refrigerant is such as
Under：1 → condenser of air injection enthalpy-increasing compressor 13（Heat release）→ the first electric expansion valve 14（Throttling）→ economizer 17 → centre adds
Hot device 20（Heat absorption）→ second refrigerant solenoid valve 21 → gas-liquid separator, 25 → air injection enthalpy-increasing compressor 1；High-temperature heat accumulation water tank 3
In low-temperature water heating pressurize through the first water pump 2 it is laggard in intermediate heater 20, heating after low-temperature refrigerant through the 5th water route electricity
Magnet valve 27 returns in high-temperature heat accumulation water tank 3；Heating return water pressurize through the second water pump 8 it is laggard in condenser 13, by high-temperature refrigeration
It is returned in the 4th hot water line 12 after agent heating（Into heating room）.
2.4）When the water temperature in high-temperature heat accumulation water tank 15 drops to 0 DEG C or slightly freezes, it is switched to common air injection enthalpy-increasing and supplies
Thermal process, the control of each valve of the process compared with middle warm water's air injection enthalpy-increasing heat supplying process, the difference is that, the 5th water route
Solenoid valve 27 is closed, and the flow of refrigerant is the same；Heating return water pressurize through the second water pump 8 it is laggard in condenser 13, by high temperature
It is returned to after refrigerant heat in the 4th hot water line 12（Into heating room）.
The present embodiment is balanced heat pump unit in outdoor environment temperature using the cold water in high-temperature heat accumulation water tank 3 higher than first
Extra heating capacity stores when point temperature, by water temperature heating to setting value（About 60 DEG C）Afterwards, it is switched to pure heat supplying process；When
When outdoor environment temperature is less than the first balance point temperature, from high to low successively according to temperature by the hot water in high-temperature heat accumulation water tank 3
Carry out high-temperature-hot-water heat supplying process, middle warm water's air injection enthalpy-increasing heat supplying process and Low Temperature Thermal water source heat pump heat supply process.This implementation
Hot water in high-temperature heat accumulation water tank 3 is carried out classified utilization by example on earth according to temperature by height, can improve unit by a relatively large margin low
Energy Efficiency Ratio under temperature, makes heating capacity meet demand, while improving the thermal storage density of hot water, reduces high-temperature heat accumulation water tank 3
Volume.
There are thermic load, night there is no the field of thermic load only daytime when heat pump system is applied to factory, market, office building etc.
When conjunction, system can carry out accumulation of heat using the trough-electricity at night, again will be in high-temperature heat accumulation water tank 3 until having thermic load daytime
Hot water divides energy level to utilize.Using the heat-accumulating process of night dip electricity compared with heat supply heat-accumulating process, the difference of valve control
It is, third waterway electromagnetic valve 9 and the 4th waterway electromagnetic valve 11 are closed, and the flow of refrigerant is the same, in high-temperature heat accumulation water tank 3
Hot water is entered and is heated by high temperature refrigerant in condenser 13, out after the first waterway electromagnetic valve 4 and the pressurization of the second water pump 8
Refrigerant is returned to through the 7th waterway electromagnetic valve 42 and the second waterway electromagnetic valve 6 in hot water storage tank 3.It can also be in high-temperature heat accumulation water tank
Electrically heated rod is set in 3, after the water in high-temperature heat accumulation water tank 3 is heated to 60 DEG C by heat pump system, enables electrically heated rod and continues
Heating stops heating after water temperature reaches 80 DEG C.Low ebb electric drive heat pump system and electrically heated rod using night are accumulation of heat water
3 accumulation of heat of case, can be improved the economy of system, keep system more energy saving.
Embodiment 2：
With reference to Fig. 2, for the embodiment on the basis of implementing embodiment 1, system further includes medium temperature regenerator water tank 35, the 6th water route electricity
Magnet valve 28, the 7th waterway electromagnetic valve 29, the 8th waterway electromagnetic valve 30, the 7th hot water line 31, the 8th hot water line 32, medium temperature store
The heat exchange of hot water and refrigerant is used in boiler 35 equipped with dividing wall type heat exchanger, the hot water in medium temperature regenerator water tank 35 to pass through two
A through-hole is connected to the arrival end of the outlet end of the 7th hot water line 31 and the 8th hot water line 32 respectively, the 7th hot water line 31
Arrival end be connected to the outlet end of the 5th hot water line 26, the entrance of the outlet end of the 8th hot water line 32 and the first water pump 2
End is connected to, and the outlet end of high-pressure channel is connected to the arrival end of the second electric expansion valve 18 in economizer 17, medium temperature regenerator water tank
The arrival end in 35 inner refrigerant channels is connected to the outlet end of middle pressure passageway in economizer 17,35 inner refrigerant of medium temperature regenerator water tank
The outlet end in channel is connected to the arrival end in 20 inner refrigerant channel of intermediate heater, and the 7th waterway electromagnetic valve 29 is arranged the 7th
On hot water line 31, the 8th waterway electromagnetic valve 30 is arranged on the 8th hot water line 32, and the setting of the 6th waterway electromagnetic valve 28 is even
Connect the arrival end of the first water pump 2 and corresponding on the pipeline between the through-hole of high-temperature heat accumulation water tank 3.
In the embodiment operation principle of system compared with Example 1, the difference is that：
1）When operation is for thermal regenerator and pure heat supplying process, the 7th waterway electromagnetic valve 29 and the 8th waterway electromagnetic valve 30 are closed, from
The refrigerant that 17 high-pressure channel of economizer comes out enters the hot water of heating the inside in medium temperature regenerator water tank 35, by the supercooling of refrigerant
Thermmal storage is in the hot water；
2）When running high-temperature-hot-water heat supplying process, the 7th waterway electromagnetic valve 29 and the 8th waterway electromagnetic valve 30 are closed, Qi Tayu
The high-temperature-hot-water heat supplying process of embodiment 1 is the same；
3）After high-temperature-hot-water heat supplying process, the operation principle of system is made of following operational modes successively：
3.1）The first operational mode be using the middle warm water in medium temperature regenerator water tank 35 in temperature-heat-source, the 7th water route electromagnetism
Valve 29 and the 8th waterway electromagnetic valve 30 are opened, and the 5th waterway electromagnetic valve 27 and the 6th waterway electromagnetic valve 28 are closed, refrigerant flow circuit
Corresponding with embodiment 1 identical, the middle warm water in medium temperature regenerator water tank 35 pressurizes through the 8th waterway electromagnetic valve 30 and the first water pump 2
It is laggard to return to medium temperature regenerator water through the 7th waterway electromagnetic valve 29 to heating medium temperature refrigerant, hot water out in intermediate heater 20
In case 35, when water temperature drop is to 20 DEG C, it is switched to second of operational mode；
3.2）Second of operational mode is the 7th water route electromagnetism using the low-temperature water heating in medium temperature regenerator water tank 35 as low-temperature heat source
Valve 29 and the 8th waterway electromagnetic valve 30 are opened, and the 5th waterway electromagnetic valve 27 and the 6th waterway electromagnetic valve 28 are closed, refrigerant flow circuit
Corresponding with embodiment 1 identical, the low-temperature water heating in medium temperature regenerator water tank 35 pressurizes through the 8th waterway electromagnetic valve 30 and the first water pump 2
It is laggard to low-temperature refrigerant is heated in intermediate heater 20, hot water out returns to medium temperature regenerator water through the 7th waterway electromagnetic valve 29
In case 35, after water temperature drop is to 5 DEG C, it is switched to the third operational mode；
3.3）The third operational mode is temperature-heat-source, the process and implementation in using the middle warm water in high-temperature heat accumulation water tank 3
The process of example 1 is compared, the difference is that, the high-pressure refrigerant come out from economizer 17（About 20 DEG C of temperature）Enter medium temperature regenerator
The cold water of heating the inside in water tank 35, refrigerant flow circuit out is same as Example 1, after water temperature drop is to 20 DEG C, switching
For the 4th kind of operational mode；
3.4）4th kind of operational mode is detailed process and reality using the low-temperature water heating in high-temperature heat accumulation water tank 3 as low-temperature heat source
It applies example 1 and corresponds to identical, after water temperature drop is to 5 DEG C, be switched to the 5th kind of operational mode；
3.5）5th kind of operational mode is consistent with second of operational mode, after water temperature drop is to 5 DEG C, is switched to common jet and increases
Enthalpy heat supplying process.
The present embodiment increases medium temperature regenerator water tank 35 on the basis of embodiment 1, is come out for storing from condenser 13
Refrigerant it is excessively cold and hot, outdoor environment temperature be less than the first balance point temperature when, graded taste utilize medium temperature regenerator water tank 35
In the heat of hot water carry out heating return water, compared with Example 1, when can further increase unit and running at low ambient temperatures
Energy Efficiency Ratio, make heating capacity meet demand.
In conclusion the present invention can not only greatly improve the heating capacity of system at low ambient temperatures, make system high efficiency, stabilization
Operation, moreover it is possible to the thermal storage density for improving hot water reduces the volume of storage heater, has effect good, at low cost, easy to spread etc. excellent
Point.
It is aforementioned to be described in detail by block diagram, flow chart and/or examples of implementation, illustrate the application device and/
Or the different embodiments of method.When these block diagrams, flow chart and/or embodiment include one or more functions and/or operation
When, it will be readily apparent to those skilled in the art that each function and/or operation in these block diagrams, flow chart and/or embodiment can lead to
Cross various hardware, software, firmware or substantially they it is arbitrary combine and individually and/or jointly implement.However, this field
Technical staff, it will be recognized that some aspects of embodiment described in this specification can be entirely or partly in integrated electricity
(for example, at one or more in the form of the one or more computer programs run on one or more computers in road
The form of the one or more computer programs run in a computer system), with what is run on the one or more processors
The form of one or more programs is (for example, with the shape of the one or more programs run in one or more microprocessors
Formula), equally implement in the form of firmware or in the form of substantially they arbitrarily combine, also, according in this specification
Disclosure, designed for the application circuit and/or write for the software of the application and/or the code of firmware be entirely
Within the limit of power of those skilled in the art.In addition, it will be understood by those skilled in the art that no matter being used for actually being divided
What the type of the signal bearing medium of hair is, the mechanism of theme described in this specification can be used as program in a variety of manners
Product is distributed, also, the illustrative embodiments of theme described in this specification are applicable in.For example, signal bearing medium packet
It includes but is not limited to following：Recordable-type media, such as floppy disk, hard disk, compact disk (CD), digital video disk digital versatile disc
(DVD), digital magnetic tape, computer storage etc.；Transmission type media, such as number and/or analog communication medium (such as optical cable, wave
It leads, wired communication link, radio communication chain circuit etc.).
It will be understood by those skilled in the art that describing device and/or method in a manner of illustrating in this specification, then
Engineering practice is carried out to be very common in this field by described device and/or method integration to data processing system
's.That is, at least part in device described in this specification and/or method, can pass through the experiment of fair amount
It is integrated into data processing system.It will be appreciated by those skilled in the art that typical data processing system generally include it is following in
One or more：The storage of system unit housing, video display apparatus, such as volatile and non-volatile memory etc
The processor of device, such as microprocessor and digital signal processor etc, such as operating system, driver, graphical user
The interactive device of the computational entity of interface and application program etc, one or more such as touch tablets or touch screen etc, and/or
Control system (the feedback of such as test position and/or speed including backfeed loop and control motor；For mobile and/or
The control motor of regulating member and/or size).Typical data processing system may be used it is any suitable, quotient can be passed through
Component that industry method obtains those of (usually had in such as data calculating/communication and/or network calculations/communication system component) comes
It realizes.
It can be with for substantially any plural number and/or singular references, those skilled in the art used in this specification
Plural reference is odd number and/or odd number is construed to plural number, is suitable so long as doing from context and/or application
.For the sake of clarity, various singular/plurals may be combined to clearly statement in the present specification to come out.
The many aspects and embodiment of the application disclosed herein, it will be understood by those skilled in the art that the application
Other aspects and embodiment.Many aspects and embodiment disclosed herein are only intended to for example, being not
Restriction to the application, the real protection domain of the application and spirit should be subject to following claims.
Claims (4)
1. a kind of regenerative type air source heat pump system suitable for low temperature environment, which is characterized in that including air injection enthalpy-increasing compressor
（1）, the first water pump（2）, high-temperature heat accumulation water tank（3）, the first water valve（4）, the second water valve（6）, the second water pump（8）, third water valve
（9）, the 4th water valve（11）, condenser（13）, first throttle valve（14）, the first solenoid valve（16）, economizer（17）, second throttling
Valve（18）, wind-cooled evaporator（19）, intermediate heater（20）, second solenoid valve（21）, third solenoid valve（23）, gas-liquid separator
（25）, the 5th water valve（27）, the 6th water valve（41）, the 7th water valve（42）, which can provide higher system at low ambient temperatures
Heat simultaneously ensures that hot water has higher thermal storage density.
2. a kind of regenerative type air source heat pump system suitable for low temperature environment according to claim 1, which is characterized in that
Air injection enthalpy-increasing compressor（1）Exhaust outlet and condenser（13）The arrival end in inner refrigerant channel is connected to, and coolant channel goes out
Mouth end while and first throttle valve（14）Arrival end and the first solenoid valve（16）Arrival end connection, first throttle valve（14）'s
Outlet end and economizer（17）The arrival end of interior middle pressure passageway is connected to, the outlet end of middle pressure passageway and intermediate heater（20）Interior system
The arrival end of coolant channel is connected to, the outlet end of coolant channel while and second solenoid valve（21）Arrival end and third electromagnetism
Valve（23）Arrival end connection, third solenoid valve（23）Outlet end and air injection enthalpy-increasing compressor（1）Puff prot connection, first
Solenoid valve（16）Outlet end and economizer（17）The arrival end of interior high-pressure channel is connected to, the outlet end of high-pressure channel and the second section
Flow valve（18）Arrival end connection, second throttle（18）Outlet end and wind-cooled evaporator（19）Arrival end connection, it is air-cooled
Evaporator（19）Outlet end simultaneously and second solenoid valve（21）Outlet end and gas-liquid separator（25）Arrival end connection, gas
Liquid/gas separator（25）Outlet end and air injection enthalpy-increasing compressor（1）Air entry connection, high-temperature heat accumulation water tank（3）Interior hot water is logical
Cross five through-holes respectively with the first water pump（2）Arrival end, the 5th water valve（27）Outlet end, the first water valve（4）Arrival end,
Second water valve（6）Outlet end and the 6th water valve（41）Arrival end connection, the first water pump（2）Outlet end simultaneously with the 6th water
Valve（41）Outlet end and intermediate heater（20）The arrival end of interior hot water channel is connected to, the outlet end of hot water channel and the 5th water
Valve（27）Arrival end connection, the second water pump（8）Arrival end simultaneously with the first water valve（4）Outlet end and third water valve（9）
Outlet end connection, third water valve（9）Arrival end be connected to heating room, the second water pump（8）Outlet end and condenser
（13）The arrival end of interior hot water channel is connected to, and the outlet end of hot water channel passes through the 7th water valve（42）Respectively with the second water valve（6）
Arrival end and the 4th water valve（11）Arrival end connection, the 4th water valve（11）Outlet end be connected to heating room.
3. a kind of regenerative type air source heat pump system suitable for low temperature environment according to claim 1 and 2, feature exist
In the system further includes medium temperature regenerator water tank（35）, the 6th water valve（28）, the 7th water valve（29）, the 8th water valve（30）.
4. a kind of regenerative type air source heat pump system suitable for low temperature environment according to claim 3, which is characterized in that
Medium temperature regenerator water tank（35）It is interior to be equipped with dividing wall type heat exchanger, it is used for the heat exchange of hot water and refrigerant, hot water to pass through two through-holes point
Not with the 7th water valve（29）Outlet end and the 8th water valve（30）Arrival end connection, the 7th water valve（29）Arrival end and the 5th
Water valve（27）Arrival end connection, the 8th water valve（30）Outlet end and the first water pump（2）Arrival end connection；Coolant channel
Arrival end and economizer（17）The outlet end of interior high-pressure channel is connected to, the outlet end of coolant channel and second throttle（18）
Arrival end connection, the 6th waterway electromagnetic valve（28）Setting is connecting the first water pump（2）Arrival end and correspond to high-temperature heat accumulation
Water tank（3）Through-hole between pipeline on.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810536855.4A CN108645028B (en) | 2018-05-30 | 2018-05-30 | Heat accumulating type air source heat pump system suitable for low-temperature environment |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810536855.4A CN108645028B (en) | 2018-05-30 | 2018-05-30 | Heat accumulating type air source heat pump system suitable for low-temperature environment |
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| Publication Number | Publication Date |
|---|---|
| CN108645028A true CN108645028A (en) | 2018-10-12 |
| CN108645028B CN108645028B (en) | 2020-10-02 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201810536855.4A Active CN108645028B (en) | 2018-05-30 | 2018-05-30 | Heat accumulating type air source heat pump system suitable for low-temperature environment |
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| CN109780748A (en) * | 2019-03-14 | 2019-05-21 | 哈尔滨工业大学 | Blowdown ultra-low-loop temperature air source heat pump unit and its heating refrigerating operation method |
| CN109780749A (en) * | 2019-03-14 | 2019-05-21 | 哈尔滨工业大学 | Utilize the ultra-low-loop temperature air source heat pump unit of diurnal temperature range outside accumulation of heat balance cylinder |
| CN115200223A (en) * | 2022-07-26 | 2022-10-18 | 大同云清科技有限公司 | Ventilation air heat pump system for improving power of compressor |
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| CN109780749A (en) * | 2019-03-14 | 2019-05-21 | 哈尔滨工业大学 | Utilize the ultra-low-loop temperature air source heat pump unit of diurnal temperature range outside accumulation of heat balance cylinder |
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Also Published As
| Publication number | Publication date |
|---|---|
| CN108645028B (en) | 2020-10-02 |
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