CN106705467A - Heat supply system of trans-critical CO2 heat pump and heat supply method - Google Patents
Heat supply system of trans-critical CO2 heat pump and heat supply method Download PDFInfo
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- CN106705467A CN106705467A CN201611155754.XA CN201611155754A CN106705467A CN 106705467 A CN106705467 A CN 106705467A CN 201611155754 A CN201611155754 A CN 201611155754A CN 106705467 A CN106705467 A CN 106705467A
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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
- F25B1/00—Compression machines, plants or systems with non-reversible cycle
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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
- F25B40/00—Subcoolers, desuperheaters or superheaters
- F25B40/06—Superheaters
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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
- F25B41/31—Expansion valves
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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
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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
- F25B49/00—Arrangement or mounting of control or safety devices
- F25B49/02—Arrangement or mounting of control or safety devices for compression type machines, plants or systems
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- Physics & Mathematics (AREA)
- Mechanical Engineering (AREA)
- Thermal Sciences (AREA)
- General Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Analytical Chemistry (AREA)
- Power Engineering (AREA)
- Heat-Pump Type And Storage Water Heaters (AREA)
Abstract
The invention provides a heat supply system of a trans-critical CO2 heat pump. A trans-critical CO2 outlet of a compressor is connected to a working medium inlet of a gas cooler by a pipeline; a working medium outlet of the gas cooler is connected to a high-pressure inner pipe inlet of a heat regenerator by a pipeline; a high-pressure inner pipe outlet of the heat regenerator is connected to a capillary pipe throttling element by a pipeline; the capillary pipe throttling element is connected to an inlet of an evaporator by a pipeline; an outlet of the evaporator is connected to an inlet of a gas-liquid separator by a pipeline; an outlet of the gas-liquid separator is connected to a low-pressure outer pipe inlet of the heat regenerator by a pipeline; and a low-pressure outer pipe outlet of the heat regenerator is connected to a CO2 inlet of the compressor by a pipeline. The heat supply system is wide in range of application, applicable in the temperature range of minus 40 DEG C to 40 DEG C, used in all weathers throughout the year, free from influence of severe weather such as cloudy day, rain and snow and winter night and suitable for multiple heat supply occasions and can realize unattended operation and fully automatic operation.
Description
Technical field
The present invention relates to air source heat pump field, more particularly to a kind of Trans-critical cycle CO2Heat pump heat distribution system and heat supply method.
Background technology
In China, as construction industry grows continuously and fast, building energy consumption has accounted for the larger share of national total energy consumption, this part
Energy consumption is to greenhouse gas emission important.In building energy consumption, heating and air conditioning energy consumption is occupied in whole building energy consumption
Larger share.At present, energy shortage has turned into the most pressing problem that countries in the world are faced, and reduces traditional coal heating and is made
Into atmosphere pollution, reduce heating air-conditioner system energy consumption, vigorously promote the use including the clean energy resource including regenerative resource,
Important goal and direction as building energy conservation and raising energy use efficiency.
The content of the invention
In order to overcome above-mentioned deficiency of the prior art, it is an object of the present invention to provide a kind of Trans-critical cycle CO2Heat pump is supplied
Hot systems, including：Compressor, evaporator, gas-liquid separator, gas cooler, regenerator, capillary section fluid element；
The Trans-critical cycle CO of compressor2Outlet is connected by pipeline with the working medium import of gas cooler, the working medium of gas cooler
Outlet is connected by pipeline with regenerator high pressure inner tube import, and regenerator high pressure inner tube outlet is by pipeline and capillary-compensated unit
Part is connected, and the import that capillary section fluid element passes through pipeline and evaporator, the outlet of evaporator connects gas-liquid separation by pipeline
The import of device, gas-liquid separator gas vent connects the low pressure outer tube import of regenerator, the low pressure outer tube of regenerator by pipeline
Export the CO that compressor is connected by pipeline2Import；
The heat supply outlet of gas cooler is connected with the water inlet of heat supply pipeline, the heat supply import of gas cooler and heat supply pipeline
Water return outlet connection；The heat supply exit of gas cooler is provided with heating water leaving water temperature sensors and heating water pump, gas
Return water temperature sensor is provided with the heat supply import of cooler；
The thermal source air intlet of evaporator connects Air heating resource by pipeline, and the thermal source air outlet slit of evaporator is connected by pipeline
Connect Air heating resource；The thermal source air intlet of evaporator is provided with thermal source air blower with the pipeline of Air heating resource；
Thermal source temperature of inlet air sensor is provided with the thermal source air intlet of evaporator, is set at the thermal source air outlet slit of evaporator
There is thermal source air exit temp sensor；The Trans-critical cycle CO of compressor2Export out and be provided with delivery gauge, the CO of compressor2Import
Place is provided with inlet pressure gauge.
Preferably, also include：Control device；
Control device includes：Central processing unit, power supply start-up and shut-down control module, compressor control module, heating water pump control modules,
Thermal source air blower control module, heating water leaving water temperature induction module, return water temperature induction module, thermal source temperature of inlet air
Induction module, thermal source air exit temp induction module, outlet pressure induction module, inlet pressure induction module, time control module,
Temperature setting module, display touch-screen, data storage module, alarm module；
Power supply start-up and shut-down control module is used for the break-make of control system power supply；
Compressor control module is used to control the start and stop of compressor；
Heating water pump control modules are used to control the start and stop of heating water pump；
Thermal source air blower control module is used to control the start and stop of thermal source air blower；
Heating water leaving water temperature induction module is connected with heating water leaving water temperature sensors, for obtaining heating water leaving water temperature；
Return water temperature induction module is connected with return water temperature sensor, for obtaining return water temperature；
Thermal source temperature of inlet air induction module is connected with thermal source temperature of inlet air sensor, the thermal source for obtaining evaporator
Thermal source air themperature at air intlet；
Thermal source air exit temp induction module is connected with thermal source air exit temp sensor, the thermal source for obtaining evaporator
Thermal source air themperature at air outlet slit；
Outlet pressure induction module is connected with delivery gauge, the Trans-critical cycle CO for obtaining compressor2Outlet pressure；
Inlet pressure induction module is connected with inlet pressure gauge, the CO for obtaining compressor2Inlet pressure；
Time control module is used to setting the operation duration of system, and metering system run time, start the time, dwell time makes
System is run in default operation duration；
Temperature setting module is used to set the higher limit of heating water leaving water temperature and the lower limit of heating water leaving water temperature；
Environment temperature detection module is used to detect environment temperature；
Alarm module, display touch-screen, data storage module, power supply start-up and shut-down control module, compressor control module, heating water pump
Control module, thermal source air blower control module, heating water leaving water temperature induction module, return water temperature induction module, thermal source are empty
Gas inlet temperature induction module, thermal source air exit temp induction module, outlet pressure induction module, inlet pressure sensing mould
Block, time control module, temperature control modules, temperature setting module, environment temperature detection module are connected with central processing unit respectively, in
Central processor is used to receive the data of each sensor sensing, according to the limit value of the heating water leaving water temperature for setting, control compression
Machine, heating water pump, the operation of thermal source air blower, when heating water leaving water temperature is equal to the higher limit for setting, control compressor, heat
Source air blower is out of service, when heating water leaving water temperature is equal to the lower limit for setting, control compressor, thermal source air blower
Startup optimization, heats to heating water water outlet；
Display touch-screen is used for display system service data and running status, and for receiving the control instruction of user input,
And control instruction is transferred to central processing unit；Data storage module is used to record data, record system running
In data, state, and generate log file, by calling historical data, carry out the running status of look-up system, to enter to act
Therefore analysis and treatment；
Alarm module is used for when internal system temperature or pressure exceed early warning value, and central processing unit control alarm module sends report
Alert information.
Preferably, capillary section fluid element includes：First capillary, the first capillary magnetic valve, the second capillary, second
Capillary magnetic valve；
First capillary and the first capillary magnetic valve form first and connect link, the second capillary and the second capillary magnetic valve
Formed second connect link, first series connection link connected with second link parallel connection；
Control device also includes：Capillary magnetic valve temperature control module；
First capillary magnetic valve and the second capillary magnetic valve are connected with capillary magnetic valve temperature control module respectively, capillary electricity
Magnet valve temperature control module is used to, according to default environment temperature, when environment temperature is higher than default environment temperature, close the second capillary
Magnetic valve, disconnects the first capillary magnetic valve；When environment temperature is less than default environment temperature, the second capillary electromagnetism is disconnected
Valve, closes the first capillary magnetic valve；
The length of the second capillary is longer than the length of the first capillary.
Preferably, also include：Defroster duct；
Defroster duct is coiled in outside evaporator, the Trans-critical cycle CO of defroster duct one end and compressor2Outlet conduit is connected, another
End is connected with the inlet pipeline of evaporator；Defroster duct is provided with defrosting magnetic valve；Evaporator tube wall temperature is provided with outside evaporator
Degree sensor；
Control device also includes：Evaporator tube wall temperature induction module, defrosting solenoid valve control module；
Evaporator temperature induction module is used to receive the evaporator tube wall temperature of evaporator tube wall temperature sensor sensing；
Defrosting solenoid valve control module is used to be less than preset temperature, environment temperature and evaporator tube wall temperature difference when environment temperature
When being more than prefixed time interval beyond preset value, and defrosting time interval, it is electric that defrosting is opened in defrosting solenoid valve control module control
Magnet valve uses compressor hot gas bypass defrosting, into the defrost stage；When environment temperature and evaporator tube wall temperature difference are less than pre-
If value, or defrosting Preset Time is reached, defrosting magnetic valve is closed, terminate defrost.
Preferably, control device also includes：Emergent stopping module, account number cipher login module, wireless communication module；
Account number cipher login module is used to provide the user with the account password of login system, user is passed through logon account password
Afterwards, system operatio is carried out；
The water inlet of heat supply pipeline is provided with inlet valve, and the water return outlet of heat supply pipeline is provided with backwater valve；
Safety valve is equipped with compressor, gas cooler；
Also include：Remote terminal；
Wireless communication module is connected with central processing unit, and wireless communication module is used to for central processing unit and remote terminal to carry out nothing
Line communicates, and remote terminal is obtained the data message of system, and the long-range course of work to system is controlled.
Preferably, gas-liquid separator includes housing, and the import of gas-liquid separator is arranged on the top of the housing, gas-liquid point
Import from device is provided with inlet attack, and enclosure interior top is provided with deflection plate, gaseous state vertical tube is provided with below the deflection plate,
The gaseous state vertical tube is connected with gaseous state transverse tube by gaseous state connecting tube, and gas-liquid separator gas vent is located in housing sidewall
Portion, gas-liquid separator gas vent is provided with gaseous state outlet connection, and the gaseous state transverse tube is connected with gaseous state outlet connection, the shell
The bottom of body is provided with oil return interface tube；Oil return interface tube is connected by pipeline with compressor oil return interface, oil return interface tube with pressure
Pipeline between contracting machine oil return interface is provided with oil return solenoid valve；
Raised up in the middle part of the deflection plate, the edge of deflection plate is provided with least one breach.
Preferably, the breach semicircular in shape；
The housing includes upper lid and lower cover, and the lower cover is connected with support.
Preferably, evaporator includes evaporator body, and knockout and discharge are provided with inside the evaporator body, described
Discharge is connected with escaping pipe by triple valve, and escaping pipe connects the outlet of evaporator；The knockout is connected by U-shaped triple valve
Feed tube is connected to, feed tube connects the import of evaporator；
Knockout includes separating tube, and the separating tube is located at the both sides inside evaporator body；
The knockout includes the preceding knockout of structure identical and rear knockout, and the preceding knockout passes through pipeline one and U-shaped three
The outlet one of port valve is connected, and the rear knockout is connected by pipeline two with the outlet two of U-shaped triple valve；
The preceding knockout includes U-shaped triple valve, and the import of the U-shaped triple valve is connected with pipeline one, the outlet of U-shaped triple valve
One is connected to separating tube with outlet two；
The thermal source air intlet and thermal source air outlet slit of evaporator are separately positioned on the top of housing；
Inlet cylinder connects the thermal source air intlet of evaporator, and gas outlet connects the thermal source air outlet slit of evaporator；
Housing is provided with outside the evaporator body, the housing is in back taper, and the both sides of enclosure interior are provided with matches somebody with somebody with separating tube
The mounting groove of conjunction.
Preferably, the bottom of the housing is fixed on base by support frame, and drip tray is provided with the base；
The drip tray includes preceding drip tray and rear drip tray.
A kind of Trans-critical cycle CO2Heat pump heat supply method, method includes：
Start control device power supply, Air heating resource, thermal source air blower, heating water pump successively；
Thermal source air blower is treated, after heating water pump operation preset duration, starts compressor；
Compressor discharge HTHP CO2Gas, into gas cooler, delivery gauge sensing compressor discharge HTHP
CO2The pressure of gas；
Into the HTHP CO of gas cooler2Gas equipressure heat release turns into cryogenic high pressure CO2Gas, liberated heat is supplied
Warm backwater absorbs, and forms heating water outlet, the temperature of heating water leaving water temperature sensors sensing heating water outlet；Cryogenic high pressure CO2Gas
Body enters regenerator high pressure inner tube；
Into regenerator high pressure inner tube cryogenic high pressure CO2Gas equipressure heat release, the formation more cryogenic high pressure that temperature is further reduced
CO2Gas, liberated heat is by the low-temp low-pressure CO of regenerator low pressure outer tube2Gas absorbs, more cryogenic high pressure CO2Gas is discharged
Into capillary section fluid element；
According to default environment temperature, when environment temperature is higher than default environment temperature, the second capillary magnetic valve is closed, disconnect the
One capillary magnetic valve；More cryogenic high pressure CO2Gas enters the second series connection link adiabatic expansion turns into gas-liquid two-phase state, then arranges
Go out capillary section fluid element, into evaporator；
When environment temperature is less than default environment temperature, the second capillary magnetic valve is disconnected, close the first capillary magnetic valve；More
Cryogenic high pressure CO2Gas enters the first series connection link adiabatic expansion turns into gas-liquid two-phase state, is then exhausted from capillary section fluid element,
Into evaporator；
Into the gas-liquid two-phase CO of evaporator2Level pressure level pressure endothermic gasification turns into CO2Gas, continues heat absorption and becomes to overheat CO2Gas
Discharge evaporator, by after gas-liquid separator, into regenerator low pressure outer tube, CO2It is changed into overheat from the state of gas-liquid two-phase to steam
The state of vapour；
CO is overheated into regenerator low pressure inner tube2Gas further absorbs regenerator high pressure inner tube CO2The heat of gas, equipressure is inhaled
The overheat CO that heat is more wanted as temperature2Gas, overheats CO2Gas enters compressor, high temperature is formed in the presence of compressor high
Pressure CO2Gas, starts a new circulation；
When heating water leaving water temperature is equal to the higher limit for setting, control compressor, thermal source air blower are out of service, work as heating
When water leaving water temperature is equal to the lower limit for setting, control compressor, thermal source air blower startup optimization repeat above-mentioned circulation.
As can be seen from the above technical solutions, the present invention has advantages below：
System is applied widely, Applicable temperature scope at -40 to 40 DEG C, and it is round-the-clock throughout the year use, not by the moon, rain,
Snow etc. bad weather and the influence at night in winter, all can normally use, can laser heating, be adapted to it is various heating occasions use, make
Used with hot water engineering, be capable of achieving unattended, fully automatic operation, centralizedly supply hot water shows equipped with water temperature, water level.
System operation cost is low, and energy-saving effect is protruded, it is not necessary to burn coal, coke, and compared to coal is burnt, coke pollution is low, has
Good social benefit.
Stable system performance, not affected by environment, product round-the-clock running throughout the year, not by night, the cloudy day, rain and snow
Etc. boisterous influence, it is possible to achieve annual heat supply.
System footprint space very little, is suitable for the skyscraper of big and medium-sized cities, has a safety feature, without any hidden danger：With electricity and combustion
Gas water heater is mutually different, and it uses indirect heating manner and water coke slurry heat, without potential safety hazards such as electric leakage, gas leakage.
System realizes that system operation is automated；Automatic running, without on duty, carries attemperating unit and heat-insulation layer, can be automatic
Moisturizing, heating, power-off.
Brief description of the drawings
In order to illustrate more clearly of technical scheme, will make simple to the accompanying drawing to be used needed for description below
Introduce on ground, it should be apparent that, drawings in the following description are only some embodiments of the present invention, for ordinary skill
For personnel, on the premise of not paying creative work, other accompanying drawings can also be obtained according to these accompanying drawings.
Fig. 1 is Trans-critical cycle CO2Heat pump heat distribution system schematic diagram；
Fig. 2 is gas-liquid separator schematic diagram；
Fig. 3 is the generalized section of gas-liquid separator；
Fig. 4 is the schematic top plan view of gas-liquid separator；
Fig. 5 is the schematic diagram of deflection plate；
Fig. 6 is the schematic top plan view of deflection plate；
Fig. 7 is evaporator schematic diagram；
Fig. 8 is evaporator schematic top plan view；
Fig. 9 is the front view structure of evaporator；
Figure 10 is Trans-critical cycle CO2The thermodynamic process figure of heat pump heat supply method；
Figure 11 is Trans-critical cycle CO2The thermodynamic process figure of heat pump heat supply method.
Specific embodiment
To enable that goal of the invention of the invention, feature, advantage are more obvious and understandable, below will be with specific
Embodiment and accompanying drawing, the technical scheme to present invention protection are clearly and completely described, it is clear that implementation disclosed below
Example is only a part of embodiment of the invention, and not all embodiment.Based on the embodiment in this patent, the common skill in this area
All other embodiment that art personnel are obtained under the premise of creative work is not made, belongs to the model of this patent protection
Enclose.
The present embodiment provides a kind of Trans-critical cycle CO2Heat pump heat distribution system, as shown in figure 1, including：Compressor 1, evaporator 4,
Gas-liquid separator 5, gas cooler 2, regenerator 3, capillary section fluid element；
The Trans-critical cycle CO of compressor 12Outlet is connected by pipeline with the working medium import of gas cooler 2, the work of gas cooler 2
Matter outlet is connected by pipeline with the high pressure inner tube import of regenerator 3, and the high pressure inner tube outlet of regenerator 3 passes through pipeline and capillary section
Fluid element is connected, and the import that capillary section fluid element passes through pipeline and evaporator 4, the outlet of evaporator 4 connects gas by pipeline
The import of liquid/gas separator 5, the outlet of gas-liquid separator gas 5 connects the low pressure outer tube import of regenerator 3, regenerator 3 by pipeline
Low pressure outer tube outlet by pipeline connection compressor 1 CO2Import；
The heat supply outlet of gas cooler 2 is connected with the water inlet 17 of heat supply pipeline, the heat supply import and heat supply of gas cooler 2
The water return outlet 18 of pipeline is connected；The heat supply exit of gas cooler 2 is provided with heating water leaving water temperature sensors 15 and heating
Water pump 6, return water temperature sensor 16 is provided with the heat supply import of gas cooler；
The thermal source air intlet of evaporator 4 connects Air heating resource 8 by pipeline, and the thermal source air outlet slit of evaporator passes through pipeline
Connection Air heating resource 8；The thermal source air intlet of evaporator is provided with thermal source air blower 7 with the pipeline of Air heating resource；
Thermal source temperature of inlet air sensor 25, the thermal source air outlet slit of evaporator are provided with the thermal source air intlet of evaporator 4
Place is provided with thermal source air exit temp sensor 24；The Trans-critical cycle CO of compressor 12Export out and be provided with delivery gauge 19, compress
The CO of machine 12Inlet pressure gauge 20 is provided with import.
The pipe material that the system is used can be steel matter, copper material etc..Pipeline has certain resistance to pressure, and resistance to
Corrosivity.The system is used air as inside evaporator and CO2Carry out heat exchange source.Air heating resource 8 can be using heating
Pipe to air heat etc..
In the present embodiment, system also includes：Control device；Control device includes：Central processing unit, power supply start-up and shut-down control mould
Block, compressor control module, heating water pump control modules, thermal source air blower control module, heating water leaving water temperature sensing mould
Block, return water temperature induction module, thermal source temperature of inlet air induction module, thermal source air exit temp induction module, outlet pressure
Power induction module, inlet pressure induction module, time control module, temperature setting module, display touch-screen, data storage module, report
Alert module；
Power supply start-up and shut-down control module is used for the break-make of control system power supply；Compressor control module is used to control opening for compressor 1
Stop；Heating water pump control modules are used to control the start and stop of heating water pump 6；Thermal source air blower control module is used to control thermal source empty
The start and stop of gas blower fan 7；Heating water leaving water temperature induction module is connected with heating water leaving water temperature sensors 15, is heated for obtaining
Water leaving water temperature；Return water temperature induction module is connected with return water temperature sensor 16, for obtaining return water temperature；Thermal source air enters
Mouth temperature sense module is connected with thermal source temperature of inlet air sensor 25, at the thermal source air intlet for obtaining evaporator
Thermal source air themperature；Thermal source air exit temp induction module is connected with thermal source air exit temp sensor 24, for obtaining
Thermal source air themperature at the thermal source air outlet slit of evaporator；Outlet pressure induction module is connected with delivery gauge 19, is used for
Obtain the Trans-critical cycle CO of compressor2Outlet pressure；Inlet pressure induction module is connected with inlet pressure gauge 20, is compressed for obtaining
The CO of machine2Inlet pressure；
Time control module is used to setting the operation duration of system, and metering system run time, start the time, dwell time makes
System is run in default operation duration；Temperature setting module is used to set the higher limit and heating water of heating water leaving water temperature
The lower limit of leaving water temperature；Environment temperature detection module is used to detect environment temperature；
Alarm module, display touch-screen, data storage module, power supply start-up and shut-down control module, compressor control module, heating water pump
Control module, thermal source air blower control module, heating water leaving water temperature induction module, return water temperature induction module, thermal source are empty
Gas inlet temperature induction module, thermal source air exit temp induction module, outlet pressure induction module, inlet pressure sensing mould
Block, time control module, temperature control modules, temperature setting module, environment temperature detection module are connected with central processing unit respectively, in
Central processor is used to receive the data of each sensor sensing, according to the limit value of the heating water leaving water temperature for setting, control compression
Machine, heating water pump, the operation of thermal source air blower, when heating water leaving water temperature is equal to the higher limit for setting, control compressor, heat
Source air blower is out of service, when heating water leaving water temperature is equal to the lower limit for setting, control compressor, thermal source air blower
Startup optimization, heats to heating water water outlet.
Display touch-screen is used for display system service data and running status, and control for receiving user input refers to
Order, and control instruction is transferred to central processing unit；
Display touch-screen display compressor, the start and stop state of compressor, admission pressure, pressure at expulsion, gas cooler, gas is cold
But device intake air temperature, return line, electromagnetic valve switch state, evaporator fan on off state, air entry/exit temperature, evaporator
Surface temperature, supplies water pump switch state, water pump entry/exit temperature, frequency.Defrosting, defrost bypass solenoid valve on off state, subtracts
Pressure before and after pressure valve.Separate run times, accumulated running time, current time is helped：Pop-up dialogue box, explanation manual mode,
The explanation and call for help of time control pattern, temperature control mode.
Showing the operation button of touch-screen includes：Start, shut down, emergency shutdown, manually defrosting, supply water leaving water temperature,
The switching of manual mode/time control pattern/temperature control mode, manual mode：Supply water is published books temperature, emergency shutdown, time control pattern：For
Feedwater is published books temperature, emergency shutdown, initial time, termination time, temperature control mode：The holding temperature of water tank, temperature control start-up temperature,
Feedwater shutdown temperature, emergency shutdown.
Data storage module is used to record data, data, state in record system running, and generates note
Record file, by calling historical data, carrys out the running status of look-up system, to carry out crash analysis and treatment.
Alarm module is used for when internal system temperature or pressure exceed early warning value, central processing unit control alarm module hair
Go out warning message.
Specifically, after a certain operational factor of system reaches following a certain parameter, automatic alarm is pointed out operation by system
Personnel's handling failure.Trans-critical cycle CO2The alarm and protection of source pump mainly has following position and parameter：The admission pressure of compressor
Less than 2 to 4MPa, pressure at expulsion is higher than 12 to 15MPa.Gas cooler intake air temperature is higher than 130 to 150 DEG C.Supply coolant-temperature gage
Higher than 35 to 95 DEG C.
In the present embodiment, capillary section fluid element includes：First capillary 11, the first capillary magnetic valve 12, second mao
Tubule 13, the second capillary magnetic valve 14；
First capillary 11 and the first capillary magnetic valve 12 form first and connect link, the second capillary 13 and the second capillary
Magnetic valve 14 formed second connect link, first series connection link connected with second link parallel connection；
Control device also includes：Capillary magnetic valve temperature control module；First capillary magnetic valve and the second capillary magnetic valve point
It is not connected with capillary magnetic valve temperature control module, capillary magnetic valve temperature control module is used to, according to default environment temperature, work as environment
When temperature is higher than default environment temperature, the second capillary magnetic valve is closed, disconnect the first capillary magnetic valve；When environment temperature is low
When default environment temperature, the second capillary magnetic valve is disconnected, close the first capillary magnetic valve；The length of the second capillary is long
In the length of the first capillary.
Preferably, winter temperature is relatively low, and when temperature is less than 5 degree, the applicable compression ratio of system is larger, using hair more long
Tubule, capillary pipe length can be 5 to 10m；Summer environment temperature is higher, when environment temperature is higher than 15 degree, the applicable pressure of system
Contracting is smaller, and using shorter capillary, capillary pipe length is 2.5 to 5m.The magnetic valve of capillary is controlled to be divided into the first capillary
The capillary magnetic valve 14 of pipe magnetic valve 12 and second.
In the present embodiment, also include：Defroster duct 9；Defroster duct 9 is coiled in outside evaporator 4, the one end of defroster duct 9
With the Trans-critical cycle CO of compressor 12Outlet conduit is connected, and the other end is connected with the inlet pipeline of evaporator 4；Set on defroster duct 9
There is defrosting magnetic valve 21；Evaporator tube wall temperature sensor 22 is provided with outside evaporator；
Control device also includes：Evaporator tube wall temperature induction module, defrosting solenoid valve control module；Evaporator temperature senses mould
Block is used to receive the evaporator tube wall temperature of evaporator tube wall temperature sensor sensing；Defrosting solenoid valve control module is used to work as ring
Border temperature is less than preset temperature, and environment temperature exceeds preset value with evaporator tube wall temperature difference, and defrosting time interval is more than
During prefixed time interval, defrosting solenoid valve control module control is opened defrosting magnetic valve and uses compressor hot gas bypass defrosting, is entered
Enter the defrost stage；When environment temperature and evaporator tube wall temperature difference are less than preset value, or defrosting Preset Time is reached, closing is removed
White magnetic valve, terminates defrost.Can so avoid causing to produce frosting outside evaporator due to the temperature difference of environment and evaporator,
Influence heat exchange efficiency.By after dehumidifying, evaporator would not surface frosting.The operating condition of system is greatly improved.
In the present embodiment, control device also includes：Emergent stopping module, account number cipher login module, wireless communication module；
Account number cipher login module is used to provide the user with the account password of login system, user is passed through logon account password
Afterwards, system operatio is carried out；
The water inlet of heat supply pipeline is provided with inlet valve, and the water return outlet of heat supply pipeline is provided with backwater valve；
Safety valve is equipped with compressor, gas cooler；
Also include：Remote terminal；
Wireless communication module is connected with central processing unit, and wireless communication module is used to for central processing unit and remote terminal to carry out nothing
Line communicates, and remote terminal is obtained the data message of system, and the long-range course of work to system is controlled.
Emergent stopping module is used for when there are some accidents using scene, to ensure that unit stops within the shortest time
Machine.After operating personnel select emergency shutdown in control panel, system is simultaneously by compressor, evaporator fan, supply water water
Pump is out of service.
In the present embodiment, gas-liquid separator is used for separating the gaseous carbon dioxide from evaporator discharge as shown in Figures 2 to 6
In liquid carbon dioxide and compressor oil, with avoid compressor occur liquid hammer and oil starvation, the service life of compressor can be improved.
Gas-liquid separator includes：Housing 33, specifically, housing 33 is designed to include the cylinder at middle part, positioned at cylinder
The upper lid 34 of top and the lower cover 32 below cylinder, support 31 is provided with the lower section of lower cover 32, and the support 31 sets
Three structure types being triangularly arranged are counted into, the steadiness of whole gas-liquid separator can be increased.
Entered in it by being arranged on the inlet attack 41 at the top of housing 33 from the gas-liquid mixture of evaporator discharge, gas
Deflection plate 38 can be run into when liquid mixture flows downward first, under the barrier effect of deflection plate 38, gaseous carbon dioxide can be rolled over
Flow and walk, discharged from the side middle part of housing 33 by the gaseous carbon dioxide pipeline positioned at the lower section of deflection plate 38 afterwards, specifically
Ground, the gaseous carbon dioxide pipeline includes that gaseous state vertical tube 37 and gaseous state vertical tube 37 below deflection plate are connected by gaseous state
The gaseous state transverse tube 35 of the connection of pipe 36, gaseous state transverse tube 35 is connected with the gaseous state outlet connection 42 in the middle part of the side of housing 33, so that
By the gaseous carbon dioxide discharge after separation；Liquid CO 2 and compressor oil due to effect of inertia, may proceed to one to
Preceding speed, liquid forward is attached to because the effect of gravity pools together downwards on the surface of deflection plate 38, due to liquid
Carbon dioxide density ratio compressor oil density is big, therefore, compressor oil is in the bottom of gas-liquid separator, by being arranged on housing
The oil return interface tube 40 of 33 bottoms is back in compressor, can avoid compressor oil starvation.The middle part of deflection plate 38 raises up, folding
The edge for flowing plate 38 is provided with least one breach 44, and upward projection is designed at the middle part of deflection plate 38, and in its edge designs
Breach, can strengthen the flow separation effect of gaseous state and liquid, improve the separative efficiency of gas-liquid.Specifically, breach 44 is designed to
Semicircle, the edge of deflection plate 38 has been evenly arranged six breach 44.
By the way that by entry design, at the top of gas-liquid separator, above separator interior, namely the lower section of entrance is pacified
Dress deflection plate, gaseous carbon dioxide pipeline is set in the lower section of deflection plate, and be vertical tube by gaseous carbon dioxide circuit design,
The combining form of connecting tube and transverse tube, using the barrier effect of deflection plate, when gas-liquid mixture runs into stop, gas can baffling
And walk, discharged from the side middle part of separator by the gaseous carbon dioxide pipeline below deflection plate afterwards；Liquid due to
Effect of inertia, may proceed to a speed forward, liquid forward be attached in baffling plate surface effect due to gravity to
Under pool together, because liquid carbon dioxide density ratio compressor oil density is big, therefore, compressor oil is in gas-liquid separator
The bottom, by being arranged on the compressor oil outlet return of separator bottom in compressor, compressor oil starvation, and energy can be avoided
Enough realize efficiently separating for gaseous carbon dioxide, liquid carbon dioxide and compressor oil；Additionally, entrance, gaseous state are gone out respectively
Mouthful and compressor oil exit design in the middle part of the top of separator, side and bottom, it can be facilitated with evaporator, compressor etc.
The connection of system other parts, can make the arrangement of whole carbon dioxide heat pump system succinct.
In the present embodiment, as shown in Figure 7 to 9, evaporator uses packet type structure, it is possible to increase the heat exchange effect of evaporator
Really, the performance of whole system is improved.Knockout 65 and discharge 67 are provided with inside evaporator body 61, discharge 67 passes through three
Port valve 66 is connected with escaping pipe 77, for the gaseous state CO2 of the completion that exchanges heat to be derived from evaporator；Knockout 65 is by U-shaped threeway
Valve 68 is connected with feed tube 69, is exchanged heat with air-source in evaporator for gas-liquid two-phase CO2 to be imported.
Knockout 65 includes separating tube 51, and the separating tube 51 is located at the both sides inside evaporator body 61.It is utilized respectively three
Knockout 65 and discharge 67 are designed to packet type structure by port valve 66 and U-shaped triple valve 68, i.e., respectively by separating tube 65 and collection
Tracheae 67 is arranged in the both sides inside evaporator body 61, and more separating tube 51 can be placed optimizing while pipeline is arranged
With discharge 67, and then the heat exchange area of CO2 and air can be increased, the heat transfer effect of evaporator be improved, so as to steaming can be improved
Hair temperature, improves the performance of whole CO2 heat pumps.
Knockout 5 includes the preceding knockout of structure identical and rear knockout, using symmetrical structure, conveniently manufacture can add
Work, can improve production efficiency.Wherein, preceding knockout is connected by pipeline one with the outlet one of U-shaped triple valve 8, and rear knockout leads to
Pipeline two is crossed to be connected with the outlet two of U-shaped triple valve 68.
Specifically, preceding knockout and rear knockout are respectively designed to include the structure of U-shaped triple valve 68, so that can be to a point liquid
Pipe is grouped again, beneficial to the raising of the preferred arrangement and heat transfer effect of pipeline.Wherein, U-shaped the three of preceding knockout and rear knockout
The import of port valve 68 is connected with pipeline one and pipeline two respectively, and the outlet one of U-shaped triple valve 68 and outlet two are connected to point
Liquid pipe 51.
Evaporator body 61 includes housing 71, and the housing 71 is in back taper, is conducive to the heat exchange of air and CO2 in evaporator
The raising of effect, the both sides inside housing 71 are provided with the mounting groove 72 coordinated with separating tube 51.
The bottom of housing 71 is fixed on base 62 by support frame 64, and drip tray 3 is provided with base 62, works as needs
When being defrosted to evaporator surface, liquid can be collected, it is to avoid liquid is dropped in the maintenance that causes of lower section unit not
Just.Specifically, drip tray 63 includes preceding drip tray and rear drip tray.
The thermal source air intlet 70 and thermal source air outlet slit 75 of evaporator are arranged on the top of housing 61, for evaporator
Interior offer air-source.
The present invention also provides a kind of Trans-critical cycle CO2Heat pump heat supply method, method includes：
Start control device power supply, Air heating resource, thermal source air blower, heating water pump successively；
Thermal source air blower is treated, after heating water pump operation preset duration, starts compressor；
Compressor discharge HTHP CO2Gas, into gas cooler, delivery gauge sensing compressor discharge HTHP
CO2The pressure of gas；
Into the HTHP CO of gas cooler2Gas equipressure heat release turns into cryogenic high pressure CO2Gas, liberated heat is supplied
Warm backwater absorbs, and forms heating water outlet, the temperature of heating water leaving water temperature sensors sensing heating water outlet；Cryogenic high pressure CO2Gas
Body enters regenerator high pressure inner tube；
Into regenerator high pressure inner tube cryogenic high pressure CO2Gas equipressure heat release, the formation more cryogenic high pressure that temperature is further reduced
CO2Gas, liberated heat is by the low-temp low-pressure CO of regenerator low pressure outer tube2Gas absorbs, more cryogenic high pressure CO2Gas is discharged
Into capillary section fluid element；
According to default environment temperature, when environment temperature is higher than default environment temperature, the second capillary magnetic valve is closed, disconnect the
One capillary magnetic valve；More cryogenic high pressure CO2Gas enters the second series connection link adiabatic expansion turns into gas-liquid two-phase state, then arranges
Go out capillary section fluid element, into evaporator；
When environment temperature is less than default environment temperature, the second capillary magnetic valve is disconnected, close the first capillary magnetic valve；More
Cryogenic high pressure CO2Gas enters the first series connection link adiabatic expansion turns into gas-liquid two-phase state, is then exhausted from capillary section fluid element,
Into evaporator；
Into the gas-liquid two-phase CO of evaporator2Level pressure level pressure endothermic gasification turns into CO2Gas, continues heat absorption and becomes to overheat CO2Gas
Discharge evaporator, by after gas-liquid separator, into regenerator low pressure outer tube, CO2It is changed into overheat from the state of gas-liquid two-phase to steam
The state of vapour；
CO is overheated into regenerator low pressure inner tube2Gas further absorbs regenerator high pressure inner tube CO2The heat of gas, equipressure is inhaled
The overheat CO that heat is more wanted as temperature2Gas, overheats CO2Gas enters compressor, high temperature is formed in the presence of compressor high
Pressure CO2Gas, starts a new circulation；
When heating water leaving water temperature is equal to the higher limit for setting, control compressor, thermal source air blower are out of service, work as heating
When water leaving water temperature is equal to the lower limit for setting, control compressor, thermal source air blower startup optimization repeat above-mentioned circulation.
The process that implements of method is, as shown in Figure 10, Figure 11,
（1）Adiabatic compression process in compressor
Compressor is by CO2Gas is changed into 2 points of the state of HTHP from 1 point of the state of low-temp low-pressure, by 2 points of discharge HTHPs
CO2Gas, into gas cooler；
（2）Gas cooler equipressure exothermic process
By 2 points of HTHP CO into gas cooler2Gas equipressure heat release turns into cryogenic high pressure CO2Gas, the heat of releasing
Amount is taken away by cold water, cryogenic high pressure CO2By 3 points of discharges, the thermodynamic process into gas cooler is 2 points to 3 point mistakes to gas
Journey；
（3）Regenerator high pressure outer tube equipressure exothermic process
Cryogenic high pressure CO2Gas enters regenerator high pressure inner tube, cryogenic high pressure CO by 32It is low that gas temperature is still above regenerator
Press the low-temp low-pressure CO of outer tube2Gas, so further equipressure heat release turns into the lower high pressure CO of temperature2Gas, liberated heat
By the low-temp low-pressure CO of regenerator low pressure outer tube2Gas is taken away, lower temperature high pressure CO2Gas is by 4 points of discharges；
（4）Capillary section fluid element adiabatic expansion
Lower temperature high pressure CO2Gas enters capillary-compensated element by 4 points, and adiabatic expansion turns into gas-liquid two-phase state, through 5 points
Discharge capillary section fluid element, 4 points of its thermodynamic process to 5 point process, CO2Gas by lower temperature warm high pressure conditions
4 points of 5 points of states for being changed into low-temp low-pressure；
（5）Evaporator isobaric heat absorption process
Into the gas-liquid two-phase CO of evaporator2Level pressure level pressure endothermic gasification turns into CO2Gas, continues heat absorption and becomes to overheat CO2Gas
Body, through 0 point of discharge evaporator, 5 points of its thermodynamic process to 0 point process, CO2It is changed into overheat from the state 5 of gas-liquid two-phase to steam
The state 0 of vapour；
（6）Regenerator low pressure outer tube isobaric heat absorption process
CO is overheated into regenerator low pressure inner tube2Gas further absorbs regenerator high pressure inner tube CO2The heat of gas is further
Overheat, so further isobaric heat absorption turns into the overheat CO that temperature is more wanted2Gas, overheats CO2Gas is discharged by 1 point, into pressure
Contracting machine, 0 point of its thermodynamic process to 1 point process, CO2Gas is changed into temperature superheat state higher from superheat state, starts
One new circulation.
Each embodiment is described by the way of progressive in this specification, and what each embodiment was stressed is and other
The difference of embodiment, identical similar portion reference mutually between each embodiment.
The foregoing description of the disclosed embodiments, enables professional and technical personnel in the field to realize or uses the present invention.
Various modifications to these embodiments will be apparent for those skilled in the art, as defined herein
General Principle can be realized in other embodiments without departing from the spirit or scope of the present invention.Therefore, the present invention
The embodiments shown herein is not intended to be limited to, and is to fit to and principles disclosed herein and features of novelty phase one
The scope most wide for causing.
Claims (10)
1. a kind of Trans-critical cycle CO2Heat pump heat distribution system, it is characterised in that including：Compressor, evaporator, gas-liquid separator, gas
Cooler, regenerator, capillary section fluid element；
The Trans-critical cycle CO of compressor2Outlet is connected by pipeline with the working medium import of gas cooler, and the working medium of gas cooler goes out
Mouth is connected by pipeline with regenerator high pressure inner tube import, and regenerator high pressure inner tube outlet is by pipeline and capillary section fluid element
Connection, the import that capillary section fluid element passes through pipeline and evaporator, the outlet of evaporator connects gas-liquid separator by pipeline
Import, gas-liquid separator gas vent passes through the low pressure outer tube import that pipeline connects regenerator, and the low pressure outer tube of regenerator goes out
Mouth connects the CO of compressor by pipeline2Import；
The heat supply outlet of gas cooler is connected with the water inlet of heat supply pipeline, the heat supply import of gas cooler and heat supply pipeline
Water return outlet connection；The heat supply exit of gas cooler is provided with heating water leaving water temperature sensors and heating water pump, gas
Return water temperature sensor is provided with the heat supply import of cooler；
The thermal source air intlet of evaporator connects Air heating resource by pipeline, and the thermal source air outlet slit of evaporator is connected by pipeline
Connect Air heating resource；The thermal source air intlet of evaporator is provided with thermal source air blower with the pipeline of Air heating resource；
Thermal source temperature of inlet air sensor is provided with the thermal source air intlet of evaporator, is set at the thermal source air outlet slit of evaporator
There is thermal source air exit temp sensor；The Trans-critical cycle CO of compressor2Export out and be provided with delivery gauge, the CO of compressor2Import
Place is provided with inlet pressure gauge.
2. Trans-critical cycle CO according to claim 12Heat pump heat distribution system, it is characterised in that
Also include：Control device；
Control device includes：Central processing unit, power supply start-up and shut-down control module, compressor control module, heating water pump control modules,
Thermal source air blower control module, heating water leaving water temperature induction module, return water temperature induction module, thermal source temperature of inlet air
Induction module, thermal source air exit temp induction module, outlet pressure induction module, inlet pressure induction module, time control module,
Temperature setting module, display touch-screen, data storage module, alarm module；
Power supply start-up and shut-down control module is used for the break-make of control system power supply；
Compressor control module is used to control the start and stop of compressor；
Heating water pump control modules are used to control the start and stop of heating water pump；
Thermal source air blower control module is used to control the start and stop of thermal source air blower；
Heating water leaving water temperature induction module is connected with heating water leaving water temperature sensors, for obtaining heating water leaving water temperature；
Return water temperature induction module is connected with return water temperature sensor, for obtaining return water temperature；
Thermal source temperature of inlet air induction module is connected with thermal source temperature of inlet air sensor, the thermal source for obtaining evaporator
Thermal source air themperature at air intlet；
Thermal source air exit temp induction module is connected with thermal source air exit temp sensor, the thermal source for obtaining evaporator
Thermal source air themperature at air outlet slit；
Outlet pressure induction module is connected with delivery gauge, the Trans-critical cycle CO for obtaining compressor2Outlet pressure；
Inlet pressure induction module is connected with inlet pressure gauge, the CO for obtaining compressor2Inlet pressure；
Time control module is used to setting the operation duration of system, and metering system run time, start the time, dwell time makes
System is run in default operation duration；
Temperature setting module is used to set the higher limit of heating water leaving water temperature and the lower limit of heating water leaving water temperature；
Environment temperature detection module is used to detect environment temperature；
Alarm module, display touch-screen, data storage module, power supply start-up and shut-down control module, compressor control module, heating water pump
Control module, thermal source air blower control module, heating water leaving water temperature induction module, return water temperature induction module, thermal source are empty
Gas inlet temperature induction module, thermal source air exit temp induction module, outlet pressure induction module, inlet pressure sensing mould
Block, time control module, temperature control modules, temperature setting module, environment temperature detection module are connected with central processing unit respectively, in
Central processor is used to receive the data of each sensor sensing, according to the limit value of the heating water leaving water temperature for setting, control compression
Machine, heating water pump, the operation of thermal source air blower, when heating water leaving water temperature is equal to the higher limit for setting, control compressor, heat
Source air blower is out of service, when heating water leaving water temperature is equal to the lower limit for setting, control compressor, thermal source air blower
Startup optimization, heats to heating water water outlet；
Display touch-screen is used for display system service data and running status, and for receiving the control instruction of user input,
And control instruction is transferred to central processing unit；Data storage module is used to record data, record system running
In data, state, and generate log file, by calling historical data, carry out the running status of look-up system, to enter to act
Therefore analysis and treatment；
Alarm module is used for when internal system temperature or pressure exceed early warning value, and central processing unit control alarm module sends report
Alert information.
3. Trans-critical cycle CO according to claim 22Heat pump heat distribution system, it is characterised in that
Capillary section fluid element includes：First capillary, the first capillary magnetic valve, the second capillary, the second capillary electromagnetism
Valve；
First capillary and the first capillary magnetic valve form first and connect link, the second capillary and the second capillary magnetic valve
Formed second connect link, first series connection link connected with second link parallel connection；
Control device also includes：Capillary magnetic valve temperature control module；
First capillary magnetic valve and the second capillary magnetic valve are connected with capillary magnetic valve temperature control module respectively, capillary electricity
Magnet valve temperature control module is used to, according to default environment temperature, when environment temperature is higher than default environment temperature, close the second capillary
Magnetic valve, disconnects the first capillary magnetic valve；When environment temperature is less than default environment temperature, the second capillary electromagnetism is disconnected
Valve, closes the first capillary magnetic valve；
The length of the second capillary is longer than the length of the first capillary.
4. Trans-critical cycle CO according to claim 22Heat pump heat distribution system, it is characterised in that
Also include：Defroster duct；
Defroster duct is coiled in outside evaporator, the Trans-critical cycle CO of defroster duct one end and compressor2Outlet conduit is connected, another
End is connected with the inlet pipeline of evaporator；Defroster duct is provided with defrosting magnetic valve；Evaporator tube wall temperature is provided with outside evaporator
Degree sensor；
Control device also includes：Evaporator tube wall temperature induction module, defrosting solenoid valve control module；
Evaporator temperature induction module is used to receive the evaporator tube wall temperature of evaporator tube wall temperature sensor sensing；
Defrosting solenoid valve control module is used to be less than preset temperature, environment temperature and evaporator tube wall temperature difference when environment temperature
When being more than prefixed time interval beyond preset value, and defrosting time interval, it is electric that defrosting is opened in defrosting solenoid valve control module control
Magnet valve uses compressor hot gas bypass defrosting, into the defrost stage；When environment temperature and evaporator tube wall temperature difference are less than pre-
If value, or defrosting Preset Time is reached, defrosting magnetic valve is closed, terminate defrost.
5. Trans-critical cycle CO according to claim 22Heat pump heat distribution system, it is characterised in that
Control device also includes：Emergent stopping module, account number cipher login module, wireless communication module；
Account number cipher login module is used to provide the user with the account password of login system, user is passed through logon account password
Afterwards, system operatio is carried out；
The water inlet of heat supply pipeline is provided with inlet valve, and the water return outlet of heat supply pipeline is provided with backwater valve；
Safety valve is equipped with compressor, gas cooler；
Also include：Remote terminal；
Wireless communication module is connected with central processing unit, and wireless communication module is used to for central processing unit and remote terminal to carry out nothing
Line communicates, and remote terminal is obtained the data message of system, and the long-range course of work to system is controlled.
6. Trans-critical cycle CO according to claim 1 and 22Heat pump heat distribution system, it is characterised in that
Gas-liquid separator includes housing, and the import of gas-liquid separator is arranged on the top of the housing, the import of gas-liquid separator
Inlet attack is provided with, enclosure interior top is provided with deflection plate, and gaseous state vertical tube is provided with below the deflection plate, and the gaseous state is erected
Pipe is connected with gaseous state transverse tube by gaseous state connecting tube, and gas-liquid separator gas vent is located at the middle part of housing sidewall, gas-liquid separation
Device gas vent is provided with gaseous state outlet connection, and the gaseous state transverse tube is connected with gaseous state outlet connection, and the bottom of the housing is provided with
Oil return interface tube；Oil return interface tube is connected by pipeline with compressor oil return interface, oil return interface tube and compressor oil return interface
Between pipeline be provided with oil return solenoid valve；
Raised up in the middle part of the deflection plate, the edge of deflection plate is provided with least one breach.
7. Trans-critical cycle CO according to claim 62Heat pump heat distribution system, it is characterised in that
The breach semicircular in shape；
The housing includes upper lid and lower cover, and the lower cover is connected with support.
8. Trans-critical cycle CO according to claim 1 and 22Heat pump heat distribution system, it is characterised in that
Evaporator includes evaporator body, and knockout and discharge are provided with inside the evaporator body, and the discharge passes through
Triple valve is connected with escaping pipe, and escaping pipe connects the outlet of evaporator；The knockout is connected with feed liquor by U-shaped triple valve
Pipe, feed tube connects the import of evaporator；
Knockout includes separating tube, and the separating tube is located at the both sides inside evaporator body；
The knockout includes the preceding knockout of structure identical and rear knockout, and the preceding knockout passes through pipeline one and U-shaped three
The outlet one of port valve is connected, and the rear knockout is connected by pipeline two with the outlet two of U-shaped triple valve；
The preceding knockout includes U-shaped triple valve, and the import of the U-shaped triple valve is connected with pipeline one, the outlet of U-shaped triple valve
One is connected to separating tube with outlet two；
The thermal source air intlet and thermal source air outlet slit of evaporator are separately positioned on the top of housing；
Inlet cylinder connects the thermal source air intlet of evaporator, and gas outlet connects the thermal source air outlet slit of evaporator；
Housing is provided with outside the evaporator body, the housing is in back taper, and the both sides of enclosure interior are provided with matches somebody with somebody with separating tube
The mounting groove of conjunction.
9. Trans-critical cycle CO according to claim 82Heat pump heat distribution system, it is characterised in that
The bottom of the housing is fixed on base by support frame, and drip tray is provided with the base；
The drip tray includes preceding drip tray and rear drip tray.
10. a kind of Trans-critical cycle CO2Heat pump heat supply method, it is characterised in that method includes：
Start control device power supply, Air heating resource, thermal source air blower, heating water pump successively；
Thermal source air blower is treated, after heating water pump operation preset duration, starts compressor；
Compressor discharge HTHP CO2Gas, into gas cooler, delivery gauge sensing compressor discharge HTHP
CO2The pressure of gas；
Into the HTHP CO of gas cooler2Gas equipressure heat release turns into cryogenic high pressure CO2Gas, liberated heat is supplied
Warm backwater absorbs, and forms heating water outlet, the temperature of heating water leaving water temperature sensors sensing heating water outlet；Cryogenic high pressure CO2Gas
Body enters regenerator high pressure inner tube；
Into regenerator high pressure inner tube cryogenic high pressure CO2Gas equipressure heat release, the formation more cryogenic high pressure that temperature is further reduced
CO2Gas, liberated heat is by the low-temp low-pressure CO of regenerator low pressure outer tube2Gas absorbs, more cryogenic high pressure CO2Gas is discharged
Into capillary section fluid element；
According to default environment temperature, when environment temperature is higher than default environment temperature, the second capillary magnetic valve is closed, disconnect the
One capillary magnetic valve；More cryogenic high pressure CO2Gas enters the second series connection link adiabatic expansion turns into gas-liquid two-phase state, then arranges
Go out capillary section fluid element, into evaporator；
When environment temperature is less than default environment temperature, the second capillary magnetic valve is disconnected, close the first capillary magnetic valve；More
Cryogenic high pressure CO2Gas enters the first series connection link adiabatic expansion turns into gas-liquid two-phase state, is then exhausted from capillary section fluid element,
Into evaporator；
Into the gas-liquid two-phase CO of evaporator2Level pressure level pressure endothermic gasification turns into CO2Gas, continues heat absorption and becomes to overheat CO2Gas
Discharge evaporator, by after gas-liquid separator, into regenerator low pressure outer tube, CO2It is changed into overheat from the state of gas-liquid two-phase to steam
The state of vapour；
CO is overheated into regenerator low pressure inner tube2Gas further absorbs regenerator high pressure inner tube CO2The heat of gas, equipressure is inhaled
The overheat CO that heat is more wanted as temperature2Gas, overheats CO2Gas enters compressor, high temperature is formed in the presence of compressor high
Pressure CO2Gas, starts a new circulation；
When heating water leaving water temperature is equal to the higher limit for setting, control compressor, thermal source air blower are out of service, work as heating
When water leaving water temperature is equal to the lower limit for setting, control compressor, thermal source air blower startup optimization repeat above-mentioned circulation.
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| CN107101408A (en) * | 2017-06-15 | 2017-08-29 | 周登荣 | It is a kind of to be used for the thermoregulating system that carbon dioxide is medium |
| CN108195101A (en) * | 2017-12-27 | 2018-06-22 | 安徽环球星新能源科技有限公司 | CO 2 trans-critical heat pump gas evaporator |
| CN108195097A (en) * | 2017-12-27 | 2018-06-22 | 安徽环球星新能源科技有限公司 | A kind of total assembling structure of CO 2 trans-critical heat pump |
| CN108562079A (en) * | 2017-12-27 | 2018-09-21 | 安徽环球星新能源科技有限公司 | A kind of CO 2 trans-critical heat pump gas-liquid separator |
| CN108195101B (en) * | 2017-12-27 | 2020-08-28 | 中能绿色精灵(北京)科技有限公司 | Transcritical carbon dioxide heat pump gas evaporator |
| CN108488974A (en) * | 2018-05-23 | 2018-09-04 | 江苏国能绿地能源科技有限公司 | Critical-cross carbon dioxide air source heat pump is cold, warm, water combined supply system and method |
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| CN106705467B (en) | 2022-11-25 |
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Address after: No. 501, Bohai 24th Road, Huanghe 12th Road, Binzhou Economic and Technological Development Zone, Shandong Province, 256606 Patentee after: Shandong Beyond Ground Source Heat Pump Technology Co.,Ltd. Address before: No. 501, Bohai 24th Road, Huanghe 12th Road, Binzhou Economic and Technological Development Zone, Shandong Province, 256606 Patentee before: SHANDONG CHAOYUE GROUND SOURCE HEAT PUMP TECHNOLOGY CO.,LTD. |