CN108131765A - A kind of monoblock type list Two-stage Heat Pump System and its control method - Google Patents
A kind of monoblock type list Two-stage Heat Pump System and its control method Download PDFInfo
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- CN108131765A CN108131765A CN201810040088.8A CN201810040088A CN108131765A CN 108131765 A CN108131765 A CN 108131765A CN 201810040088 A CN201810040088 A CN 201810040088A CN 108131765 A CN108131765 A CN 108131765A
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- Prior art keywords
- air side
- heat
- energy
- circulation
- water tank
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Classifications
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
- F24F5/00—Air-conditioning systems or apparatus not covered by F24F1/00 or F24F3/00, e.g. using solar heat or combined with household units such as an oven or water heater
- F24F5/0003—Exclusively-fluid systems
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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
- F24H1/00—Water heaters, e.g. boilers, continuous-flow heaters or water-storage heaters
- F24H1/18—Water-storage heaters
- F24H1/20—Water-storage heaters with immersed heating elements, e.g. electric elements or furnace tubes
- F24H1/201—Water-storage heaters with immersed heating elements, e.g. electric elements or furnace tubes using electric energy supply
-
- 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
-
- 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
- F24H9/00—Details
- F24H9/18—Arrangement or mounting of grates or heating means
- F24H9/1809—Arrangement or mounting of grates or heating means for water heaters
- F24H9/1818—Arrangement or mounting of electric heating means
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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
- F24H9/00—Details
- F24H9/20—Arrangement or mounting of control or safety devices
- F24H9/2007—Arrangement or mounting of control or safety devices for water heaters
- F24H9/2014—Arrangement or mounting of control or safety devices for water heaters using electrical energy supply
- F24H9/2021—Storage heaters
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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
- F25B13/00—Compression machines, plants or systems, with reversible cycle
-
- 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
- F25B30/02—Heat pumps of the compression type
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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
- F25B47/00—Arrangements for preventing or removing deposits or corrosion, not provided for in another subclass
- F25B47/02—Defrosting cycles
Abstract
The invention discloses a kind of monoblock type list Two-stage Heat Pump System and its control method, including：Air side evaporator, air side four-way valve, air side compressor and condensation evaporation heat exchanger, air side condenser, air side expansion valve are connected with air side evaporator, form first circulation circuit；Condensation evaporation heat exchanger is sequentially connected water side compression machine, water side condenser, water side expansion valve and condensation evaporation heat exchanger, forms second circulation circuit；Water side condenser is sequentially connected second channel, first pipe and energy-accumulating water tank, and energy-accumulating water tank passes through the first valve and the second valve and energy supply outlet pipeline connection energy end；It is pumped with energy end connection first circulation, energy supply water return pipeline, water side condenser, forms third circulation loop；Air side condenser connects the second channel of second circulation water, energy-accumulating water tank, second pipe and air side condenser, forms the 4th circulation loop.Present invention can ensure that heat pump system is run under energy-efficient state.
Description
Technical field
The present invention relates to heat pump application field, more particularly to a kind of monoblock type list twin-stage for having heating and refrigerating function
Heat pump system and its control method.
Background technology
It is mainly currently on the market cascade system similar to heat pump system.Existing system has the following problems：1. system is adopted
When warm can only twin-stage operation, it is impossible to single-stage, heating Energy Efficiency Ratio are low；2. system can only heating, it is impossible to freeze, function is single；3. system
During system defrost, the heat of end is absorbed, influences the comfort of heating；4. without insulated building, antifreeze Resolving probiems are not thorough, water pump,
Water tank etc. needs to occupy architecture indoor space.
Invention content
For the present invention in order to solve the deficiencies in the prior art, high temperature heating, low temperature system can be realized by providing one kind
Cold monoblock type list Two-stage Heat Pump System and its control method.
The technical solution adopted by the present invention to solve the technical problems is：
A kind of monoblock type list Two-stage Heat Pump System, including first circulation circuit, second circulation circuit, third circulation loop,
4th circulation loop, air side evaporator and condensation-evaporating heat exchanger；
The air side evaporator connects air side four-way valve, and the air side four-way valve connects air side compressor respectively
With the first passage of condensation-evaporating heat exchanger, the first passage of the condensation-evaporating heat exchanger is sequentially connected air side condenser
First passage, air side expansion valve and air side evaporator, form first circulation circuit；
The second channel of the condensation-evaporating heat exchanger is connected through water side compression machine with the first passage of water side condenser,
The first passage of the water side condenser is connect through water side expansion valve with the second channel of condensation-evaporating heat exchanger, forms second
Circulation loop；
The second channel of the water side condenser connects energy-accumulating water tank by first pipe, and the energy-accumulating water tank passes through first
Valve and the second valve connect energy supply outlet pipeline respectively, and the energy supply outlet pipeline uses energy end for connecting；It is described to use energy
End pumps connection energy supply water return pipeline, the second channel of the energy supply water return pipeline connection water side condenser, shape through first circulation
Into third circulation loop；
The second channel of the air side condenser connects energy-accumulating water tank by second circulation water pump, and the energy-accumulating water tank leads to
The second channel of second pipe connection air side condenser is crossed, forms the 4th circulation loop.
Institute's air side four-way valve include four communication ports, respectively communication port A, communication port B, communication port C and communication port D,
The outlet of the air side evaporator is connect with the communication port A, and the communication port D is connected with the import of air side compressor,
The outlet of the air side compressor is connected with communication port C, the first passage phase of the communication port B and condensation-evaporating heat exchanger
Even.
The energy-accumulating water tank is stratified water tanks, and electric heater is equipped in the energy-accumulating water tank.
The energy-accumulating water tank includes housing, and outer sleeve is equipped in the housing, and inner sleeve is equipped in the outer sleeve, described
The barrel of outer sleeve is equipped with first through hole, and the barrel of the inner sleeve is equipped with the second through-hole, and the first pipe is worn successively
Housing and outer sleeve are crossed, is stretched into the inner sleeve, the second pipe is deeply described along the length direction of the inner sleeve
In inner sleeve.
The first through hole is set one week along the circumferencial direction spacing distance of the outer sleeve, and it is logical that formation one arranges the first
Hole sets multiple rows of first through hole along the length direction spacing distance of the outer sleeve, and second through-hole is along the inner sleeve
The circumferencial direction spacing distance of cylinder is set one week, is formed one and is arranged the 2nd through-hole, along the length direction spacer of the inner sleeve
From setting multiple rows of second through-hole, one arrange the first through-hole and one arrange the 2nd through-hole position it is arranged in a crossed manner in length direction.
Condensation-the evaporating heat exchanger uses plate heat exchanger；The air side condenser uses shell-and-tube heat exchanger.
Further, thermal-insulating body is further included；
It is swollen equipped with air side four-way valve, air side compressor, condensation-evaporating heat exchanger, air side in the thermal-insulating body
Swollen valve, air side condenser, water side compression machine, water side condenser, water side expansion valve, energy-accumulating water tank, first circulation pump, second follow
Ring pump, the first valve and the second valve；
The thermal-insulating body is externally provided with air side evaporator.
First valve and the second valve are motor-driven valve；It is set on the pipeline of the water side condenser connection first circulation pump
There is the first hygrosensor；Second temperature detector and switch board are equipped in the thermal-insulating body, control is equipped in the switch board
System processed, the thermal-insulating body are externally provided with third hygrosensor.
The present invention also provides a kind of controlling parties that heating and refrigeration are carried out using above-mentioned monoblock type list Two-stage Heat Pump System
Method includes the following steps：
By the first hygrosensor send the first temperature information to switch board control system, the control system according to
The first temperature information control first circulation circuit, second circulation circuit, third circulation loop and the 4th circulation loop received
Start and stop；
By third hygrosensor send third temperature information to switch board control system, the control system according to
Set temperature and the third temperature information that receives judge twin-stage operation or single-stage operation, that is, control first circulation circuit,
The start and stop in second circulation circuit, third circulation loop and/or the 4th circulation loop；
Temperature information is sent to the control system of switch board by the 4th hygrosensor, the control system is according to reception
The 4th temperature information control energy-accumulating water tank in electric heater start and stop.
Compared with existing overlapping heat pump techniques, the achievable heating of the present invention, refrigeration Effec-tive Function, during heating, system
It is run according to the height intelligent control heat pump single-stage or twin-stage of environment temperature, when environment temperature is less than set temperature, system
Twin-stage is run；When environment temperature is higher than set temperature, the operation of system single-stage.Heat pump system can be ensured in energy-efficient state
Lower operation.For heat pump system under refrigerating state, system air side condenser directly provides low-temperature receiver to energy-accumulating water tank.System stored energy water
Telescopic thermal stratification device is equipped in case, the water inlet of energy-accumulating water tank enters on the inside of sleeve, using the stack effect of sleeve, makes height
Warm water rapid increase, water at low temperature rapid decrease, so as to quickly provide heat source or low-temperature receiver needed for heat supply or refrigeration.Simultaneity factor water tank
First, second valve is exported respectively as thermal source outlet and low-temperature receiver, and corresponding switching is done automatically according to system setting.
Description of the drawings
Fig. 1 is the structure diagram of monoblock type list Two-stage Heat Pump System provided in an embodiment of the present invention；
Fig. 2 is the system structure diagram of heat pump system twin-stage operational mode provided in an embodiment of the present invention；
Fig. 3 is the system structure diagram that heat pump system single-stage provided in an embodiment of the present invention runs heating mode；
Fig. 4 is the system structure diagram of heat pump system defrost pattern provided in an embodiment of the present invention；
Fig. 5 is the system structure diagram of heat pump system refrigeration mode provided in an embodiment of the present invention；
Fig. 6 is the structure diagram of the layering sleeve of the present invention；
Fig. 7 is the internal structure perspective view of Fig. 6.
In figure：1 air side evaporator, 2 air side four-way valves, 3 air side compressors, 4 condensations-evaporating heat exchanger, 5 air
Side expansion valve, 6 air side condensers, 7 water side compression machines, 8 water side condensers, 9 water side expansion valves, 10 energy-accumulating water tanks, 11 first
Circulating pump, 12 second circulations pump, 13 first valves, 14 second valves, 15 switch boards, 16 thermal-insulating bodies, 17 electric heaters, 18 the
Four temperature sensors, 19 second temperature sensors, 20 first temperature sensors, 21 third temperature sensors, 23. first pipes；
24. second pipe；25. housing；26. 27. inner sleeve of outer sleeve；28. 29. second through-hole of first through hole.
Specific embodiment
The invention will be further described below in conjunction with the accompanying drawings, but not as a limitation of the invention.
Referring to Fig. 1, a kind of monoblock type list Two-stage Heat Pump System is followed including first circulation circuit, second circulation circuit, third
Loop back path, the 4th circulation loop, air side evaporator and condensation-evaporating heat exchanger；
The air side evaporator connects air side four-way valve, and the air side four-way valve connects air side compressor respectively
With the first passage of condensation-evaporating heat exchanger, the first passage of the condensation-evaporating heat exchanger is sequentially connected air side condenser
First passage, air side expansion valve and air side evaporator, form first circulation circuit；
The second channel of the condensation-evaporating heat exchanger is connected through water side compression machine with the first passage of water side condenser,
The first passage of the water side condenser is connect through water side expansion valve with the second channel of condensation-evaporating heat exchanger, forms second
Circulation loop；
The second channel of the water side condenser connects energy-accumulating water tank by first pipe, and the energy-accumulating water tank passes through first
Valve and the second valve connect energy supply outlet pipeline respectively, and the energy supply outlet pipeline uses energy end for connecting；It is described to use energy
End pumps connection energy supply water return pipeline, the second channel of the energy supply water return pipeline connection water side condenser, shape through first circulation
Into third circulation loop；
The second channel of the air side condenser connects energy-accumulating water tank by second circulation water pump, and the energy-accumulating water tank leads to
The second channel of second pipe connection air side condenser is crossed, forms the 4th circulation loop.
In first circulation circuit, condensation-evaporating heat exchanger is as the air side condenser pair under system twin-stage operating status
Heat, is transferred to second circulation circuit, air side is cold by the heat that outer release air side is absorbed from air by heat exchange mode
Condenser plays a role, while provide defrost in the defrost of system air side in the case where system single-stage runs Heating State and refrigeration mode
Institute's calorific requirement.Condensation-evaporating heat exchanger in heat pump system Bi-level mode runtime system discharges empty as air side condenser
Also heat is absorbed as the evaporator of water side and used for feedwater side while the heat that gas side absorbs.Heat pump system single mode
The heat that air side condenser in runtime system directly discharges air side absorption is transmitted to energy-accumulating water tank.
In second circulation circuit, in the case where system twin-stage runs heat supply mode, the side of condensation-evaporating heat exchanger absorbs air
The heat that side releases promotes heat density under the pressurization through water side compression machine, and is flowed through through the release heating of water side condenser
The water of third circulation loop makes its heating.
In third circulation loop, the heat discharged by extracting water side sends the mesh that heat supply or refrigeration are realized with energy end to
's.
In 4th circulation loop, the heat that generates heat pump system air side in system single-stage heat supply mode or refrigeration mode
It is spare that amount or cold are transmitted to energy-accumulating water tank.In addition also the heat in energy-accumulating water tank is transmitted in heat pump system air side defrost
To heat pump air side as defrost ability.It avoids taking heat affecting indoor heating comfort from interior.
For the present embodiment on the basis of above-described embodiment, air side four-way valve 2 includes four communication ports, respectively communication port
A, communication port B, communication port C and communication port D, the outlet of air side evaporator 1 are connect with communication port A, communication port D and air side
The import of compressor 3 is connected, and the outlet of air side compressor 3 is connected with communication port C, communication port B and condensation-evaporating heat exchanger 4
First passage be connected.
For the present embodiment on the basis of above-described embodiment, energy-accumulating water tank 10 is stratified water tanks, and electricity is equipped in energy-accumulating water tank 10
Heater 17.
Preferably, the present embodiment is the situation for being not provided with inner sleeve, and energy-accumulating water tank 10 includes housing 25, is equipped in housing 25
Outer sleeve 26, the barrel of outer sleeve 26 are equipped with first through hole 28, and first pipe 23 is stretched into across housing 25 in outer sleeve 26, the
Two pipelines 24 go deep into along the length direction of outer outer sleeve 26 in outer sleeve 26.
Referring to Fig. 1, Fig. 6 and Fig. 7, energy-accumulating water tank 9 includes housing 25, and layering sleeve is equipped in housing, and layering sleeve includes
Outer sleeve 26 and inner sleeve 27, housing 25 is interior to be equipped with outer sleeve 26, and inner sleeve 27, the barrel of outer sleeve 25 are equipped in outer sleeve 26
It is equipped with first through hole 28, the barrel of inner sleeve 27 is equipped with the second through-hole 29, and first pipe 23 sequentially passes through housing 25 and outer
Sleeve 26 is stretched into inner sleeve 27, and second pipe 24 gos deep into along the length direction of inner sleeve 27 in inner sleeve 27.
The present invention can also only set an outer sleeve, remove inner sleeve, first pipe 23 stretches into housing across housing 25
In cylinder 26, second pipe 24 gos deep into along the length direction of outer sleeve 26 in outer sleeve 26.
Preferably, first through hole 28 is set one week along the circumferencial direction spacing distance of outer sleeve 26, is formed one and is arranged the first
Through-hole sets multiple rows of first through hole along the length direction spacing distance of outer sleeve 26, and the second through-hole 29 is along inner sleeve 27
Circumferencial direction spacing distance is set one week, is formed one and is arranged the 2nd through-hole, is set along the length direction spacing distance of inner sleeve 27
Multiple rows of second through-hole, one arrange the first through-hole and one arrange the 2nd through-hole position it is arranged in a crossed manner in length direction.
The energy-accumulating water tank of the present invention is layering energy-accumulating water tank.Layered structure is set in energy-accumulating water tank, it is ensured that water temperature is under
And upper thermal stratification distribution, be conducive to high-temperature heat supply, low temperature cooling in this way.Electric heater, Ke Yibao are additionally provided in energy-accumulating water tank
There are enough heat supplies to ensure that defrost is thorough when demonstrate,proving air side defrost.
Preferably, condensation-evaporating heat exchanger 4 uses plate heat exchanger；Air side condenser 6 uses shell-and-tube heat exchanger.
Further, thermal-insulating body 16 is further included；
It is swollen that air side four-way valve 2, air side compressor 3, condensation-evaporating heat exchanger 4, air side are equipped in thermal-insulating body 16
Swollen valve 5, air side condenser 6, water side compression machine 7, water side condenser 8, water side expansion valve 9, energy-accumulating water tank 10, first circulation
Pump 11 and second circulation pump 12；
Thermal-insulating body 16 is externally provided with air side evaporator；
For the ease of control, the first valve 13 and the second valve 14 are arranged on the outside of thermal-insulating body 16.
The air side compressor of the present invention, condensation-evaporating heat exchanger, air side condenser, air side expansion valve, water side pressure
Contracting machine, side condenser, water side expansion valve and first, second circulating pump, energy-accumulating water tank, control system are all placed on a heat preservation
In babinet, air side evaporator, which is mounted on the outside of babinet, forms an entirety.The achievable high temperature heating of the present invention, cryogenic refrigeration,
There is system energy efficiency higher.Thermal-insulating body is also used as consolidating for air side evaporator as between system equipment
Determine pedestal.
It is automatically controlled to realize, the first valve 13 and the second valve 14 are motor-driven valve；The connection of water side condenser 7 first
The pipeline of circulating pump 11 is equipped with the first hygrosensor 20；Second temperature detector 19 and switch board are equipped in thermal-insulating body 16
15, control system is equipped in switch board 15, thermal-insulating body 16 is externally provided with third hygrosensor 21, and the is equipped in energy-accumulating water tank 10
Four hygrosensors 18.
The present invention control system as control heat pump system operation control centre according to setting condition control system oneself
Dynamic operation.Switch board selects heat supply or refrigeration mode to automatically switch energy transmission lines switch valve according to user, ensures Heating State
Heat source water is discharged from the highest top water outlet of energy-accumulating water tank water temperature, refrigerating state low-temperature receiver water from the minimum water tank lower part of water temperature；Control
Cabinet processed measures the energised state of energy supply return water temperature automatic start-stop heat pump system according to the first temperature sensor 20, in heat supply mode
The lower environment temperature according to measured by third temperature sensor 21 automatically switches single twin-stage operational mode of heat pump system.
Referring to Fig. 1, the present invention provides a kind of carries out heating and refrigeration using above-mentioned monoblock type list Two-stage Heat Pump System
Control method includes the following steps：
First temperature information is sent to the control system of switch board, the control system root by the first hygrosensor 20
According to the first temperature information control first circulation circuit, second circulation circuit, third circulation loop and the 4th circulation loop of reception
Start and stop；
Third temperature information is sent to the control system of switch board, the control system root by third hygrosensor 21
Judge twin-stage operation or single-stage operation according to set temperature and the third temperature information received, that is, first circulation is controlled to return
Road, the start and stop in second circulation circuit, third circulation loop and/or the 4th circulation loop；
Control system of the temperature information to switch board is sent by the 4th hygrosensor 18, the control system is according to connecing
The start and stop of electric heater in the 4th temperature information control energy-accumulating water tank 10 received；
The control system of switch board 15 is given by second temperature detector 19, the control system is according to the second of reception the temperature
The electric heater in information control startup insulated building is spent, realizes the temperature control in insulated building.
The heat pump system of the present invention can realize Winter heat supply and summer cooling function；Under system heat supply mode, heat pump system
System can be according to environment temperature adjust automatically list twin-stage operational mode, to reach most energy-efficient effect.
Referring to Fig. 2, when heat supply mode is run, when 20 signal piping temperature of the first temperature sensor is less than set temperature,
Control system starts first circulation pump 11 automatically, and operation third circulation loop is to can end heat supply；
Third temperature sensor 21 detects environment temperature at this time, and when environment temperature is less than set temperature, control system is certainly
It is dynamic to start first circulation circuit and second circulation circuit；Air side heat transfer medium is absorbed by air side evaporator 1 from air
Heat enters the communication port of air side four-way valve 2, then passes through condensation-evaporating heat exchanger after the pressurization heating of air side compressor 3
4 transfer heat to second circulation circuit, and the medium after heat dissipation reenters air side evaporator 1 by air side expansion valve 5
Absorb heat；Water side heat transfer medium is entered by the absorption heat of condensation-evaporating heat exchanger 4 after the pressurization heating of water side compression machine 7
Water side condenser 8 and transfer heat to third circulation loop to can end heat supply, such circular flow；This recurrent state
Under, the first valve 13 is opened, and the second valve 14 is closed.
Referring to Fig. 3, when third temperature sensor 21, which detects environment temperature, is higher than set temperature, 12 fortune of second circulation pump
Row, control system start first circulation circuit and the 4th circulation loop automatically；Air side heat transfer medium passes through air side evaporator 1
Pass through air side after entering the pressurization heating of air side compressor 3 after the communication port of absorption heat air side four-way valve 2 from air
Condenser 6 transfers heat to the 4th circulation loop, and the medium after heat dissipation reenters air side by air side expansion valve 5 and steams
It sends out device 1 and absorbs heat；The heat transfer medium of 4th circulation loop enters energy-accumulating water tank after absorbing heat by air side condenser 6
10, be supplied to after heat dissipation third circulation loop to can end heat supply, such circular flow；Under this recurrent state, the first valve
13 open, and the second valve 14 is closed.
Referring to Fig. 4, when entering defrost state, first circulation circuit and the operation of the 4th circulation loop；Heat is from energy storage water
Case 10, which is transmitted to air side condenser 6 by heat transfer medium and passes to the heat transfer medium Posterior circle in first circulation circuit, returns to energy storage
Water tank 10, and continuous circular flow；By the heat transfer medium in the first circulation circuit of air side condenser 6 according to heat supply phase
It is radiated into air side evaporator 1 so that 1 surface of air side evaporator after entering the pressurization heating of air side compressor 3 in anti-path
Frost absorb heat and eliminate；Heat transfer medium after heat release reenters air side condenser 6 using air side expansion valve 5 and absorbs heat,
The frost that this process is constantly recycled to 1 surface of air side evaporator is all eliminated；
Referring to Fig. 5, when entering refrigeration mode, first, third, the operation of the 4th circulation loop, the first valve 13 closes, the
Two valves 14 are opened；When the first temperature sensor 20 detection temperature is higher than set temperature, the first circulation of third circulation loop
Pump 11 starts, heat transfer medium from can end absorb heat and being transmitted to after 10 radiating and cooling of energy-accumulating water tank and reenter with can end
End heat absorption；Start the second circulation pump 12 of the 4th circulation loop simultaneously, heat transfer medium is in energy-accumulating water tank 10 and air side condenser 6
Between constantly recycle, heat taken to air side condenser 6 from energy-accumulating water tank 10 and absorbs cold be transported to energy-accumulating water tank 10；Together
When first circulation loop start, the heat transfer medium in first circulation circuit enters air after absorbing heat from air side condenser 6
After the communication port of side four-way valve 2 enter the 3 pressurized heating of air side compressor after be sent to air side evaporator 1 release heat after,
Enter air side condenser 6 after air side expansion valve 5 again and absorb heat；Such three circulation loops constantly recycle, to energy
End cooling, externally heat dissipation, until the first temperature sensor 20 detection temperature, which reaches setting, stops temperature, halt system operation.
One kind of embodiment described above, only more preferably specific embodiment of the invention, those skilled in the art
The usual variations and alternatives that member carries out in the range of technical solution of the present invention should all include within the scope of the present invention.
Claims (10)
1. a kind of monoblock type list Two-stage Heat Pump System, which is characterized in that including first circulation circuit, second circulation circuit, third
Circulation loop, the 4th circulation loop, air side evaporator and condensation-evaporating heat exchanger；
The air side evaporator connects air side four-way valve, and the air side four-way valve connects air side compressor and cold respectively
The first passage of solidifying-evaporating heat exchanger, the first passage of the condensation-evaporating heat exchanger are sequentially connected the of air side condenser
One channel, air side expansion valve and air side evaporator form first circulation circuit；
The second channel of the condensation-evaporating heat exchanger is connected through water side compression machine with the first passage of water side condenser, described
The first passage of water side condenser is connect through water side expansion valve with the second channel of condensation-evaporating heat exchanger, forms second circulation
Circuit；
The second channel of the water side condenser connects energy-accumulating water tank by first pipe, and the energy-accumulating water tank passes through the first valve
Energy supply outlet pipeline is connected respectively with the second valve, and the energy supply outlet pipeline uses energy end for connecting；The energy end
Connection energy supply water return pipeline is pumped through first circulation, the second channel of the energy supply water return pipeline connection water side condenser forms the
Three circulation loops；
The second channel of the air side condenser connects energy-accumulating water tank by second circulation water pump, and the energy-accumulating water tank passes through the
Two pipelines connect the second channel of air side condenser, form the 4th circulation loop.
2. monoblock type list Two-stage Heat Pump System according to claim 1, which is characterized in that the air side four-way valve includes
Four communication ports, respectively communication port A, communication port B, communication port C and communication port D, the outlet of the air side evaporator and institute
Communication port A connections are stated, the communication port D is connected with the import of air side compressor, the outlet of the air side compressor and company
Port C is connected, and the communication port B is connected with the first passage of condensation-evaporating heat exchanger.
3. monoblock type list Two-stage Heat Pump System according to claim 1, which is characterized in that the energy-accumulating water tank is layering water
Case, the energy-accumulating water tank is interior to be equipped with electric heater.
4. monoblock type list Two-stage Heat Pump System according to claim 3, which is characterized in that the energy-accumulating water tank includes shell
Body, the housing is interior to be equipped with outer sleeve, and inner sleeve is equipped in the outer sleeve, and the barrel of the outer sleeve is equipped with first and leads to
Hole, the barrel of the inner sleeve are equipped with the second through-hole, and the first pipe sequentially passes through housing and outer sleeve, stretches into described
In sleeve, the second pipe gos deep into along the length direction of the inner sleeve in the inner sleeve.
5. monoblock type list Two-stage Heat Pump System according to claim 4, which is characterized in that the first through hole is along described
The circumferencial direction spacing distance of outer sleeve is set one week, is formed one and is arranged the first through-hole, between the length direction along the outer sleeve
From multiple rows of first through hole is set, second through-hole is set one week gauge along the circumferencial direction spacing distance of the inner sleeve,
It forms one and arranges the 2nd through-hole, multiple rows of second through-hole is set along the length direction spacing distance of the inner sleeve, one, which arranges the first, leads to
Hole and one arrange the 2nd through-hole position it is arranged in a crossed manner in length direction.
6. monoblock type list Two-stage Heat Pump System according to claim 1, which is characterized in that the condensation-evaporating heat exchanger
Using plate heat exchanger；The air side condenser uses shell-and-tube heat exchanger.
7. according to claim 1-6 any one of them monoblock type list Two-stage Heat Pump Systems, which is characterized in that further include incubator
Body；
Be equipped in the thermal-insulating body air side four-way valve, air side compressor, condensation-evaporating heat exchanger, air side expansion valve,
Air side condenser, water side compression machine, water side condenser, water side expansion valve, energy-accumulating water tank, first circulation pump and second circulation
Pump；
The thermal-insulating body is externally provided with air side evaporator；
First valve and the second valve are arranged on the outside of the thermal-insulating body.
8. monoblock type list Two-stage Heat Pump System according to claim 7, which is characterized in that first valve and the second valve
Door is motor-driven valve；The pipeline of the water side condenser connection first circulation pump is equipped with the first hygrosensor；The incubator
It is equipped with second temperature detector and switch board in vivo, is equipped with control system in the switch board, the thermal-insulating body is externally provided with the
Three hygrosensors, the energy-accumulating water tank is interior to be equipped with the 4th hygrosensor.
9. a kind of control method that heating and refrigeration are carried out using monoblock type list Two-stage Heat Pump System according to any one of claims 8,
It is characterized in that, includes the following steps：
First temperature information is sent to the control system of switch board by the first hygrosensor, the control system is according to reception
The first temperature information control first circulation circuit, second circulation circuit, third circulation loop and the 4th circulation loop start and stop；
Third temperature information is sent to the control system of switch board by third hygrosensor, the control system is according to setting
Temperature and the third temperature information that receives judge twin-stage operation or single-stage operation, and control first circulation circuit, second follow
The start and stop of loop back path, third circulation loop and/or the 4th circulation loop；
Control system of the temperature information to switch board is sent by the 4th hygrosensor, the control system is according to the of reception
The start and stop of electric heater in four temperature informations control energy-accumulating water tank.
10. control method according to claim 9, it is characterised in that：
When heat supply mode is run, when the first temperature sensor signal piping temperature is less than set temperature, control system opens automatically
Dynamic first circulation pump, operation third circulation loop is to can end heat supply；
The environment temperature of third temperature sensor detection at this time, when environment temperature is less than set temperature, control system starts automatically
First circulation circuit and second circulation circuit；Air side heat transfer medium absorbs heat through sky by air side evaporator from air
Second circulation circuit is transferred heat to by condensation-evaporating heat exchanger after the compressor pressurization heating of gas side, the medium after heat dissipation
Air side evaporator is reentered by air side expansion valve and absorbs heat；Water side heat transfer medium passes through condensation-evaporating heat exchanger
It absorbs heat and heats up through the pressurization of water side compression machine and laggard water inlet side condenser and transfer heat to third circulation loop to energy
End heat supply, such circular flow；
When third temperature sensor detection environment temperature is higher than set temperature, second circulation pump operation, control system opens automatically
Dynamic first circulation circuit and the 4th circulation loop；Air side heat transfer medium absorbs heat warp by air side evaporator from air
The 4th circulation loop is transferred heat to by air side condenser after the pressurization heating of air side compressor, the medium after heat dissipation leads to
It crosses air side expansion valve and reenters air side evaporator absorption heat；The heat transfer medium of 4th circulation loop is cold by air side
Condenser absorb heat after enter energy-accumulating water tank, be supplied to after heat dissipation third circulation loop to can end heat supply, such circulating
Row；
When entering defrost state, first circulation circuit and the operation of the 4th circulation loop；Heat is from energy-accumulating water tank by heat transfer medium
The heat transfer medium Posterior circle for being transmitted to air side condenser and passing to first circulation circuit returns to energy-accumulating water tank, and constantly recycle
Operation；Air side is entered according to the path opposite with during heat supply by the heat transfer medium in the first circulation circuit of air side condenser
Enter air side evaporator after compressor pressurization heating to radiate so that the frost of air side evaporator surface absorbs heat and eliminates；After heat release
Heat transfer medium using air side expansion valve reenter air side condenser heat absorption, this process be constantly recycled to air side steaming
The frost for sending out device surface is all eliminated；
When enter refrigeration mode when, first, third, the 4th circulation loop operation；When the first temperature sensor detection temperature is higher than
During set temperature, the first circulation pump startup of third circulation loop, heat transfer medium from can end absorb heat and be transmitted to storage
It can be reentered after heat dissipation of water tank cooling with the heat absorption of energy end；Start the second circulation pump of the 4th circulation loop simultaneously, heat transfer is situated between
Matter constantly recycles between energy-accumulating water tank and air side condenser, and heat is taken to air side condenser from energy-accumulating water tank and is absorbed
Cold is transported to energy-accumulating water tank；First circulation loop start simultaneously, the heat transfer medium in first circulation circuit are condensed from air side
Device, which absorbs to enter after heat after the pressurized heating of air side compressor, to be sent to after air side evaporator releases heat, then through air side
Enter air side condenser after expansion valve and absorb heat；Such three circulation loops constantly recycle, to can end cooling, externally
Heat dissipation, until the first temperature sensor detection temperature, which reaches setting, stops temperature, halt system operation.
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| CN201810040088.8A CN108131765B (en) | 2018-01-16 | 2018-01-16 | Integral single-stage and double-stage heat pump system and control method thereof |
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| CN201810040088.8A CN108131765B (en) | 2018-01-16 | 2018-01-16 | Integral single-stage and double-stage heat pump system and control method thereof |
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| CN108131765B CN108131765B (en) | 2023-05-16 |
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| CN111637086A (en) * | 2020-06-04 | 2020-09-08 | 青岛科技大学 | Centrifugal compressor air supply system for gas bearing support |
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|---|---|
| CN108131765B (en) | 2023-05-16 |
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