CN103900138A - Double-compressor air energy heat pump heat supply and heating system - Google Patents
Double-compressor air energy heat pump heat supply and heating system Download PDFInfo
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- CN103900138A CN103900138A CN201210572510.7A CN201210572510A CN103900138A CN 103900138 A CN103900138 A CN 103900138A CN 201210572510 A CN201210572510 A CN 201210572510A CN 103900138 A CN103900138 A CN 103900138A
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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
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24D—DOMESTIC- OR SPACE-HEATING SYSTEMS, e.g. CENTRAL HEATING SYSTEMS; DOMESTIC HOT-WATER SUPPLY SYSTEMS; ELEMENTS OR COMPONENTS THEREFOR
- F24D3/00—Hot-water central heating systems
- F24D3/18—Hot-water central heating systems using heat pumps
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24D—DOMESTIC- OR SPACE-HEATING SYSTEMS, e.g. CENTRAL HEATING SYSTEMS; DOMESTIC HOT-WATER SUPPLY SYSTEMS; ELEMENTS OR COMPONENTS THEREFOR
- F24D19/00—Details
- F24D19/10—Arrangement or mounting of control or safety devices
- F24D19/1006—Arrangement or mounting of control or safety devices for water heating systems
- F24D19/1066—Arrangement or mounting of control or safety devices for water heating systems for the combination of central heating and domestic hot water
- F24D19/1072—Arrangement or mounting of control or safety devices for water heating systems for the combination of central heating and domestic hot water the system uses a heat pump
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24D—DOMESTIC- OR SPACE-HEATING SYSTEMS, e.g. CENTRAL HEATING SYSTEMS; DOMESTIC HOT-WATER SUPPLY SYSTEMS; ELEMENTS OR COMPONENTS THEREFOR
- F24D3/00—Hot-water central heating systems
- F24D3/08—Hot-water central heating systems in combination with systems for domestic hot-water supply
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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
- F24H15/00—Control of fluid heaters
- F24H15/20—Control of fluid heaters characterised by control inputs
- F24H15/212—Temperature of the water
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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
- F24H15/00—Control of fluid heaters
- F24H15/30—Control of fluid heaters characterised by control outputs; characterised by the components to be controlled
- F24H15/305—Control of valves
- F24H15/315—Control of valves of mixing valves
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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
- F24H15/00—Control of fluid heaters
- F24H15/30—Control of fluid heaters characterised by control outputs; characterised by the components to be controlled
- F24H15/355—Control of heat-generating means in heaters
- F24H15/37—Control of heat-generating means in heaters of electric heaters
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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
- F24H15/00—Control of fluid heaters
- F24H15/30—Control of fluid heaters characterised by control outputs; characterised by the components to be controlled
- F24H15/375—Control of heat pumps
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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
- F24H15/00—Control of fluid heaters
- F24H15/40—Control of fluid heaters characterised by the type of controllers
- F24H15/414—Control of fluid heaters characterised by the type of controllers using electronic processing, e.g. computer-based
- F24H15/45—Control of fluid heaters characterised by the type of controllers using electronic processing, e.g. computer-based remotely accessible
- F24H15/464—Control of fluid heaters characterised by the type of controllers using electronic processing, e.g. computer-based remotely accessible using local wireless communication
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24H—FLUID HEATERS, e.g. WATER OR AIR HEATERS, HAVING HEAT-GENERATING MEANS, e.g. HEAT PUMPS, IN GENERAL
- F24H4/00—Fluid heaters characterised by the use of heat pumps
- F24H4/02—Water heaters
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- 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
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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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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02B—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO BUILDINGS, e.g. HOUSING, HOUSE APPLIANCES OR RELATED END-USER APPLICATIONS
- Y02B30/00—Energy efficient heating, ventilation or air conditioning [HVAC]
- Y02B30/12—Hot water central heating systems using heat pumps
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- Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- Thermal Sciences (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Water Supply & Treatment (AREA)
- Computer Networks & Wireless Communication (AREA)
- Computer Hardware Design (AREA)
- Heat-Pump Type And Storage Water Heaters (AREA)
- Steam Or Hot-Water Central Heating Systems (AREA)
Abstract
The invention discloses a double-compressor air energy heat pump heat supply and heating system which comprises a unit part, a heat supply part, a heating part and an intelligent control part. The unit part comprises an air energy heat pump heating part, an electric heating part, a water pipeline part and a control circuit part. The control circuit part is used for controlling the air energy heat pump heating part to adopt different compressor assemblies according to detected water input temperature and environmental temperature. When the fact that water output temperature reaches a set temperature after compressors are started is detected, the electric heating part is controlled not to carry out output. When the fact that the water output temperature cannot reach the set temperature is detected, the electric heating part is controlled to output needed electric heating power according to a detected water input and output temperature difference and flow detected by the water pipeline part. When the air energy heat pump heating part and the electric heating part both carry out full-power output and the water output temperature does not reach the set temperature, the water pipeline part is controlled to adjust water flow through a water flow adjusting valve to enable the water output temperature to be constant according to the detected temperature.
Description
Technical Field
The invention relates to the field of heating by a dual-compressor air energy heat pump, in particular to an instant-on dual-compressor air energy heat pump heating system with intelligent control.
Background
The traditional double-compressor air energy heat pump heating system generally comprises three parts, namely a main machine part, a water tank part and a heating system part; for a household water tank, 1, the capacity is generally 150-320L, the water tank is large in size, a large part of building area needs to be occupied during installation, and even if some water tanks are installed outside a wall by using a support, the installation mode is quite dangerous due to the weight of water added into the water tank; 2. the water tank inner container adopts materials and processes, no matter the water tank inner container is a stainless steel inner container or an enamel inner container, and water leakage of the water tank is difficult to avoid due to the defects of the manufacturing process; 3. the heat exchanger inside the water tank generally adopts a copper pipe or a stainless steel pipe, and in areas with poor water quality, the heat exchange pipe can be corroded and perforated to cause refrigerant leakage, and once leakage occurs, the heat exchange pipe is fatal to a unit; 4. the main machine and the water tank need to be connected by a connecting pipe, so that the refrigerant leakage phenomenon caused by man-made installation is difficult to avoid; 5. due to the characteristics of the water storage type heat pump, the water temperature needs to be raised to a higher temperature, the required time is longer, the requirement of instant water use cannot be met, and the water temperature fluctuation is larger in the later stage of water use, so that the use comfort is influenced; in addition, the energy consumption of the unit is determined by the condensation temperature, and the service life of the compressor is greatly tested when the traditional unit with the water tank operates at high condensation temperature and high condensation pressure for a long time; 6. the water storage type water tank is adopted, water is generally mixed when water is used, and thus, several problems occur, and 1) the utilization rate of hot water in the water tank is not high; 2) during the heat preservation process of the water tank, the water temperature inevitably decreases, and the energy consumption is increased; 3) when a water valve is used for home decoration, a water mixing valve is required to be installed, and the material cost is increased. 7. When a general heating system adopts heat in a water tank, a heat exchange coil needs to be arranged in the water tank, and the heat exchange coil, a floor heating coil or a radiator and a circulating water pump form a closed loop, so that the difficulty of the production process of the water tank is increased, and the volume of the water tank is also occupied; 8. traditional heating system does not have intelligent control, can not carry out various remote monitoring to heating system, can't satisfy more humanized demands of modern people: 1) for example, a user needs to start heating in advance or at regular time, but the heating cannot be realized when no person is at home; 2) if a user forgets to turn off heating or heating water for a long time outside, the remote heating or heating operation cannot be turned off; 3) certain faults of the traditional heat supply system need to be analyzed and eliminated on site, and particularly in weak or remote areas of after-sale outlets, the timeliness of after-sale services and the satisfaction degree of users are greatly reduced.
Disclosure of Invention
To the defect and not enough that above-mentioned technique exists, provide a take intelligent control's two compressor system and open promptly and use formula two compressor air energy heat pump heat supply heating system of constant temperature, the integrated design, production and installation are more convenient to provide the heating function when can improving the water comfort level, thereby realize the variety of unit function, and realize networked intelligence remote control, satisfy more humanized demands of modern people.
In order to solve the technical problems, the invention provides a technical scheme that:
the double-compressor air energy heat pump heating system comprises a unit part, a heating part and an intelligent control part; the unit part comprises an air energy heat pump heating part, an electric heating part, a water path pipeline part and a control circuit part; the control circuit part is used for controlling the air energy heat pump heating part to use different compressor combinations according to the detected inlet water temperature and the detected ambient temperature; the control circuit part is also used for controlling the electric heating part not to output when the outlet water temperature reaches the set temperature after the compressor is detected to be started; the control circuit part is also used for controlling the electric heating part to output the required electric heating power according to the detected temperature difference of the inlet and outlet water and the detected flow of the waterway pipeline part when the detected outlet water temperature can not reach the set temperature; the control circuit part is also used for controlling the water flow of the water path pipeline part through the water flow regulating valve according to the detected temperature so as to enable the temperature of the outlet water to be constant when the air energy heat pump heating part and the electric heating part are both full-power output and the temperature of the outlet water does not reach the set temperature; the control circuit is also used for judging whether to execute the heating instruction according to the detected indoor environment temperature or the temperature of the floor heating coil when receiving the heating demand instruction, executing the heating function when the indoor environment temperature or the temperature of the floor heating coil reaches the temperature of opening the heating demand, and closing the heating function when the temperature of the detected indoor environment temperature or the temperature of the floor heating coil reaches the shutdown temperature.
The air energy heat pump heating part comprises a first compressor, a second compressor, a first electromagnetic valve, a second electromagnetic valve, a third electromagnetic valve, a fourth electromagnetic valve, a fifth electromagnetic valve, a sixth electromagnetic valve, a concentrated plate heat exchanger, a heating plate heat exchanger, a first filter, a second filter, an expansion valve, a first evaporator, a second evaporator, a first pressure relief condenser, a second pressure relief condenser, a first pressure relief throttling capillary tube, a second pressure relief throttling capillary tube, a gas-liquid separator, a fan blade, a motor, a first throttling capillary tube and a defrosting capillary tube, which are connected through pipelines to form a closed heat pump heating system; the first compressor, the second electromagnetic valve, the concentrated plate heat exchanger, the heating plate heat exchanger, the first filter, the expansion valve, the first evaporator, the gas-liquid separator and the first compressor which are connected in sequence form a first heating path of the first compressor system; the first compressor, the sixth electromagnetic valve, the heating plate type heat exchanger, the first filter, the expansion valve, the first evaporator, the gas-liquid separator and the first compressor which are connected in sequence form a second heating path of the first compressor system; a first compressor, a fourth electromagnetic valve, a first pressure relief condenser, a first pressure relief throttling capillary tube, a first evaporator, a gas-liquid separator and a first compressor which are connected in sequence form a first compressor system pressure relief path; the first compressor, the first electromagnetic valve, the defrosting capillary tube, the first evaporator, the gas-liquid separator and the first compressor which are connected in sequence form a first compressor system defrosting path; the second compressor, the third electromagnetic valve, the concentrated plate heat exchanger, the second filter, the first throttling capillary tube, the second evaporator and the second compressor which are connected in sequence form a second compressor system heat supply path; and a second compressor, a fifth electromagnetic valve, a second pressure relief condenser, a second pressure relief throttling capillary tube, a second evaporator and a second compressor which are connected in sequence form a second compressor system pressure relief path.
The electric heating part comprises a heating element assembly, a silicon controlled assembly, a first temperature controller, a second temperature controller, a box body, a heating element assembly water inlet pipe, a heating element assembly water outlet pipe, a terminal block and the like.
The water path pipeline part comprises a water flow switch, a concentrated plate type heat exchanger, an electric water mixing valve, a water flow meter and a water flow regulating valve which are sequentially connected, and the water flow regulating valve is connected with the electric heating part.
The control circuit comprises a main control board and an operation panel, wherein the main control board comprises an MCU, a temperature detection circuit and an electric heating power control circuit.
And the control circuit part is also used for controlling the fourth electromagnetic valve or the fifth electromagnetic valve to work according to the detected outlet water temperature when the overtemperature phenomenon occurs after the correct compressor combination is selected.
The control circuit part is also used for adjusting the inlet-outlet ratio of the heat pump outlet water and the cold water through the electric water mixing valve when the overtemperature phenomenon occurs after the correct compressor combination is selected.
The intelligent control part comprises the control circuit, a control terminal, a server and a wireless communication module; the server is respectively connected with the control terminal and the wireless communication module through a wireless network, the operation panel is connected with the main control board through a first RS485/232 communication circuit, the wireless communication module uses the server as a transfer station to communicate with the control terminal through the wireless network, and the wireless communication module is connected with the main control board through a second RS485/232 communication circuit.
Wherein, the wireless communication module is integrated with the operation panel.
The wireless communication module is integrated with the main control board.
The invention has the beneficial effects that the instant-on constant-temperature dual-compressor air energy heat pump heat supply and heating system with the intelligent control dual-compressor system is provided, is integrally designed, is more convenient to produce and install, can improve the water comfort level and simultaneously provides the heating function, thereby realizing the diversity of the unit functions, realizing the networked intelligent remote control and meeting more humanized requirements of modern people.
Drawings
FIG. 1 is a schematic diagram of a dual compressor air energy heat pump heating system according to a first embodiment of the present invention;
FIG. 2 is a schematic structural view of an electrical heating section according to the present invention;
FIG. 3 is a schematic diagram of an intelligent control portion in an embodiment of the present invention.
Description of the main elements
A first compressor 1; a second compressor 24; a second solenoid valve 2; a third electromagnetic valve 25;
a fourth electromagnetic valve 26; a fifth electromagnetic valve 27; a first electromagnetic valve 12; an electric heating section 7;
a first electromagnetic valve 12; a second compressor 24; a third electromagnetic valve 25; a fourth electromagnetic valve 26;
a fifth electromagnetic valve 27; a sixth electromagnetic valve 28; a heating plate heat exchanger 29;
a first filter 10; a second filter 19; an expansion valve 11;
a first evaporator 22; a second evaporator 20; a first pressure-relief condenser 23; a second pressure-relief condenser 21;
a first pressure relief throttling capillary 16; a second pressure relief throttling capillary 17; a gas-liquid separator 9;
a fan blade 15; a motor 14; a first throttle capillary 18; a defrost capillary 13; a water flow switch 8;
a concentrated plate heat exchanger 3; an electric water mixing valve 4; a water flow meter 5; a water flow rate regulating valve 6;
a heating element assembly water outlet pipe 71; a heat-generating body assembly 72; a first thermostat 73; a case 74;
a second temperature controller 75; a terminal block 76; a thyristor assembly 77; a heating element assembly water inlet pipe 78;
a shower head 201; a bathtub 202; a circulating water pump 301; a water flow switch 303;
a floor heating coil or heat sink 302.
Detailed Description
In order to explain technical contents, structural features, and objects and effects of the present invention in detail, the following detailed description is given with reference to the accompanying drawings in conjunction with the embodiments.
Referring to fig. 1, a schematic diagram of a dual-compressor air-source heat pump heating system according to a first embodiment of the present invention is shown, where the dual-compressor air-source heat pump heating system includes a unit portion, a heat supply portion, and a heating portion.
The unit part comprises an air energy heat pump heating part, an electric heating part 7, a water path pipeline part and a control circuit part. The control circuit part is used for controlling the air energy heat pump heating part to use different compressor combinations according to the detected inlet water temperature and the detected ambient temperature. The control circuit part is also used for controlling the electric heating part not to output when the outlet water temperature reaches the set temperature after the compressor is detected to be started; the control circuit part is also used for controlling the electric heating part to output the required electric heating power according to the detected temperature difference of the inlet and outlet water and the detected flow of the waterway pipeline part when the detected outlet water temperature can not reach the set temperature; the control circuit part is also used for controlling the water flow of the water path pipeline part through the water flow regulating valve according to the detected temperature so as to enable the temperature of the outlet water to be constant when the air energy heat pump heating part and the electric heating part are both full-power output and the temperature of the outlet water does not reach the set temperature; the control circuit is also used for judging whether to execute the heating instruction according to the detected indoor environment temperature or the temperature of the floor heating coil when receiving the heating demand instruction, executing the heating function when the indoor environment temperature or the temperature of the floor heating coil reaches the temperature of opening the heating demand, and closing the heating function when the temperature of the detected indoor environment temperature or the temperature of the floor heating coil reaches the shutdown temperature.
Specifically, the air energy heat pump heating part comprises a first compressor 1, a second compressor 24, a second electromagnetic valve 2, a third electromagnetic valve 25, a fourth electromagnetic valve 26, a fifth electromagnetic valve 27, a first electromagnetic valve 12, a concentrated plate heat exchanger 3, a heating plate heat exchanger 29, a first filter 10, a second filter 19, an expansion valve 11, a first evaporator 22, a second evaporator 20, a first pressure relief condenser 23, a second pressure relief condenser 21, a first pressure relief throttling capillary tube 16, a second pressure relief throttling capillary tube 17, a gas-liquid separator 9, a fan blade 15, a motor 14, a first throttling capillary tube 18 and a defrosting capillary tube 13.
The first compressor 1, the second electromagnetic valve 2, the concentrated plate heat exchanger 3, the heating plate heat exchanger 29, the first filter 10, the expansion valve 11, the first evaporator 22, the gas-liquid separator 9 and the first compressor 1 are sequentially connected to form a first heating path of the first compressor system. The first compressor 1, the sixth electromagnetic valve 28, the heating plate type heat exchanger 29, the first filter 10, the expansion valve 11, the first evaporator 22, the gas-liquid separator 9 and the first compressor 1 are sequentially connected to form a second heating path of the first compressor system. The first compressor 1, the fourth electromagnetic valve 26, the first pressure relief condenser 23, the first pressure relief throttling capillary tube 16, the first evaporator 22, the gas-liquid separator 9 and the first compressor 1 are sequentially connected to form a first compressor system pressure relief path. The second compressor 24, the third electromagnetic valve 25, the concentrated plate heat exchanger 3, the second filter 19, the first throttle capillary 18, the second evaporator 20 and the second compressor 24 are connected in sequence to form a second compressor system heating path. The second compressor 24, the fifth electromagnetic valve 27, the second pressure relief condenser 21, the second pressure relief throttling capillary 17, the second evaporator 20 and the second compressor 24 are connected in sequence to form a second compressor system pressure relief path. The first compressor 1, the first electromagnetic valve 12, the defrosting capillary 13, the first evaporator 22, the gas-liquid separator 9 and the first compressor 1 are connected in sequence to form a first compressor system defrosting path. In the above system flow operation, the fan blades 15 of the motor 14 are started and stopped according to requirements.
The control circuit part comprises a main control board and an operation panel, wherein the main control board comprises an MCU, a temperature detection circuit and an electric heating power control circuit. And the control circuit part is also used for controlling the fourth electromagnetic valve or the fifth electromagnetic valve to work according to the detected outlet water temperature when the overtemperature phenomenon occurs after the correct compressor combination is selected. The control circuit part is also used for adjusting the inlet and outlet proportion of the outlet water and the cold water of the heat pump through the electric water mixing valve when the overtemperature phenomenon occurs after the correct compressor combination is selected.
The water path pipeline part comprises a water flow switch 8, a concentrated plate type heat exchanger 3, an electric water mixing valve 4, a water flow meter 5 and a water flow regulating valve 6 which are sequentially connected, wherein the water flow regulating valve 6 is connected with the electric heating part 7. When the MCU detects that the output power can meet the requirement of larger water inflow, the stepping motor of the electric water mixing valve 4 is driven by the control circuit part to mix water, and the application of large water volume is provided.
Fig. 2 is a schematic structural diagram of an electrical heating portion according to the present invention. The electric heating part comprises a heating element assembly water outlet pipe 71, a heating element assembly 72, a first temperature controller 73, a box body 74, a second temperature controller 75, a terminal block 76, a controllable silicon assembly 77 and a heating element assembly water inlet pipe 78. The working principle of the electric heating part is as follows: the temperature of water is detected by the water outlet temperature sensor, the temperature of water is compared with a set temperature, information is fed back to the MCU, whether the electric heating part needs to be powered on or not is judged, after the heating body component 72 is controlled to be powered on, the MCU accurately controls the controllable silicon component 77 and provides required heating power, and therefore the water outlet is guaranteed to be constant.
Please refer to fig. 3, which is a diagram illustrating an intelligent control portion according to an embodiment of the present invention. The intelligent control part comprises a control circuit, a control terminal, a server and a wireless communication module, wherein the server is respectively connected with the control terminal and the wireless communication module through a wireless network, the operation panel is connected with the main control board through a first RS485/232 communication circuit, the wireless communication module uses the server as a transfer station to communicate with the control terminal through the wireless network, and the wireless communication module is connected with the main control board through a second RS485/232 communication circuit. In one embodiment, the wireless communication module is integrated with the operation panel, and in another embodiment, the wireless communication module is integrated with a main control panel.
The heat supply part comprises a shower head 201 and a bathtub 202, the configuration of the shower head is determined according to the actual decoration and installation condition of a user home, and the water using end can simultaneously meet the water using requirements of a plurality of water using points. The heating part comprises a circulating water pump 301, a water flow switch 303 and a floor heating coil or a radiating fin 302. Can satisfy floor heating coil and fin's use simultaneously according to the demand of user to the heating.
The scheme has the advantages that: 1. the design of no water tank is adopted, so that the installation space is saved, the installation is convenient and the use is safe; 2. the phenomenon of water leakage of the water tank is avoided; 3. the condition that the coil pipe in the water tank is corroded and perforated to cause unit scrapping is avoided; 4. because links of using connecting pipes are reduced, the probability of refrigerant leakage is greatly reduced; 5. the unit designed by the scheme can be used immediately after being started, so that the time for waiting for water use is saved, constant-temperature water outlet is ensured, the comfort of water use is improved, and the continuity of water use can be ensured; under the condition that the unit uses water, the energy efficiency is higher, the energy is more saved, and the safe and stable operation of the heat pump unit is facilitated, so that the service life of the unit is ensured; 6. due to the adoption of the design without the water tank, the problem of low utilization rate of hot water is avoided, the problem of energy waste caused by poor heat insulation effect is avoided, and in addition, the use cost of user valves can be reduced; 7. by designing and using the pressure relief condenser, the running load of the unit can be reduced while the overhigh temperature of the outlet water is avoided, so that the energy consumption of the unit is greatly reduced, and the national requirements on energy conservation and emission reduction are met; 8. according to the residual power, under the condition that the water quantity is judged to be increased and the water outlet can be ensured to be constant, bypass water mixing is carried out through the electric water mixing valve, so that the total water outlet flow is larger, and the water consumption is more comfortable; 9. the corresponding compressor can be selected according to the water load, so that the heat pump can be fully utilized, the heat pump energy efficiency is improved and the power consumption energy consumption is reduced while the comfort of water consumption is ensured; 10. on the premise of meeting the requirement of supplying hot water, the heating mode can be selected through the operation panel, so that the room heating requirement is met; 11. the heating system adopts a double-compressor system, and can select a corresponding compressor according to the water load, and ensure constant water outlet by combining with an instant heating system; 12. by adopting the remote control function, a user can use a control terminal, such as a mobile phone or other devices which can be networked, to intelligently control the heating system, thereby embodying the humanized design of the system.
The above description is only an embodiment of the present invention, and not intended to limit the scope of the present invention, and all modifications of equivalent structures and equivalent processes performed by the present specification and drawings, or directly or indirectly applied to other related technical fields, are included in the scope of the present invention.
Claims (10)
1. A double-compressor air energy heat pump heating system is characterized by comprising a unit part, a heating part and an intelligent control part;
the unit part comprises an air energy heat pump heating part, an electric heating part, a water path pipeline part and a control circuit part; the control circuit part is used for controlling the air energy heat pump heating part to use different compressor combinations according to the detected inlet water temperature and the detected ambient temperature; the control circuit part is also used for controlling the electric heating part not to output when the outlet water temperature reaches the set temperature after the compressor is detected to be started; the control circuit part is also used for controlling the electric heating part to output the required electric heating power according to the detected temperature difference of the inlet and outlet water and the detected flow of the waterway pipeline part when the detected outlet water temperature can not reach the set temperature; the control circuit part is also used for controlling the water flow of the water path pipeline part through the water flow regulating valve according to the detected temperature so as to enable the temperature of the outlet water to be constant when the air energy heat pump heating part and the electric heating part are both full-power output and the temperature of the outlet water does not reach the set temperature; the control circuit is also used for judging whether to execute the heating instruction according to the detected indoor environment temperature or the temperature of the floor heating coil when receiving the heating demand instruction, executing the heating function when the indoor environment temperature or the temperature of the floor heating coil reaches the temperature of opening the heating demand, and closing the heating function when the temperature of the detected indoor environment temperature or the temperature of the floor heating coil reaches the shutdown temperature.
2. The dual-compressor air-source heat pump heating system according to claim 1, wherein the air-source heat pump heating part comprises a first compressor, a second compressor, a first electromagnetic valve, a second electromagnetic valve, a third electromagnetic valve, a fourth electromagnetic valve, a fifth electromagnetic valve, a sixth electromagnetic valve, a concentrated plate heat exchanger, a heating plate heat exchanger, a first filter, a second filter, an expansion valve, a first evaporator, a second evaporator, a first pressure relief condenser, a second pressure relief condenser, a first pressure relief throttling capillary tube, a second pressure relief throttling capillary tube, a gas-liquid separator, a fan blade, a motor, a first throttling capillary tube and a defrosting capillary tube, which are connected through pipelines to form a closed heat pump heating system; wherein,
the first compressor, the second electromagnetic valve, the concentrated plate type heat exchanger, the heating plate type heat exchanger, the first filter, the expansion valve, the first evaporator, the gas-liquid separator and the first compressor which are connected in sequence form a first heat supply path of the first compressor system;
the first compressor, the sixth electromagnetic valve, the heating plate type heat exchanger, the first filter, the expansion valve, the first evaporator, the gas-liquid separator and the first compressor which are connected in sequence form a second heating path of the first compressor system;
a first compressor, a fourth electromagnetic valve, a first pressure relief condenser, a first pressure relief throttling capillary tube, a first evaporator, a gas-liquid separator and a first compressor which are connected in sequence form a first compressor system pressure relief path;
the first compressor, the first electromagnetic valve, the defrosting capillary tube, the first evaporator, the gas-liquid separator and the first compressor which are connected in sequence form a first compressor system defrosting path;
the second compressor, the third electromagnetic valve, the concentrated plate heat exchanger, the second filter, the first throttling capillary tube, the second evaporator and the second compressor which are connected in sequence form a second compressor system heat supply path;
and a second compressor, a fifth electromagnetic valve, a second pressure relief condenser, a second pressure relief throttling capillary tube, a second evaporator and a second compressor which are connected in sequence form a second compressor system pressure relief path.
3. The dual-compressor air-source heat pump heating system of claim 1, wherein the electrical heating part comprises a heating element assembly, a thyristor assembly, a first temperature controller, a second temperature controller, a box body, a heating element assembly water inlet pipe, a heating element assembly water outlet pipe, a terminal block and the like.
4. The dual-compressor air-source heat pump heating system of claim 1, wherein the waterway pipeline part comprises a water flow switch, a concentrated plate heat exchanger, an electric water mixing valve, a water flow meter and a water flow regulating valve which are connected in sequence, wherein the water flow regulating valve is connected with the electric heating part.
5. The dual-compressor air-source heat pump heating system according to claim 1, wherein the control circuit comprises a main control board and an operation panel, and the main control board comprises an MCU, a temperature detection circuit and an electric heating power control circuit.
6. The dual-compressor air-source heat pump heating system according to claim 2, wherein the control circuit part is further configured to control the fourth solenoid valve or the fifth solenoid valve to operate according to the detected outlet water temperature when the over-temperature phenomenon occurs after the correct compressor combination is selected.
7. The system according to claim 4, wherein the control circuit is further configured to adjust the ratio of the outlet water of the heat pump to the inlet water of the cold water through an electric water mixing valve when the over-temperature phenomenon occurs after the correct combination of the compressors is selected.
8. The dual-compressor air-source heat pump heating system of claim 5, wherein the intelligent control part comprises the control circuit, a control terminal, a server and a wireless communication module; the server is respectively connected with the control terminal and the wireless communication module through a wireless network, the operation panel is connected with the main control board through a first RS485/232 communication circuit, the wireless communication module uses the server as a transfer station to communicate with the control terminal through the wireless network, and the wireless communication module is connected with the main control board through a second RS485/232 communication circuit.
9. A dual compressor air energy heat pump heating system according to claim 8, wherein the wireless communication module is integrated with the operating panel.
10. The dual-compressor air-source heat pump heating system of claim 8, wherein the wireless communication module is integrated with the main control panel.
Priority Applications (6)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210572510.7A CN103900138B (en) | 2012-12-25 | 2012-12-25 | A kind of double-compressor air energy heat pump heating system |
| US14/362,162 US20150292779A1 (en) | 2012-12-25 | 2013-09-05 | Double-compressor air-source heat pump heating and heat supply system |
| AU2013350341A AU2013350341A1 (en) | 2012-12-25 | 2013-09-05 | A double-compressor air-source heat pump heating and heat supply system |
| DE201311003771 DE112013003771T5 (en) | 2012-12-25 | 2013-09-05 | Double compressor heat pump and heat supply system with air extraction |
| PCT/CN2013/082977 WO2014101463A1 (en) | 2012-12-25 | 2013-09-05 | Dual compressor air heat pump heat supply and heating supply system |
| JP2014553612A JP2015505949A (en) | 2012-12-25 | 2013-09-05 | Dual compressor air heat source heat pump hot water supply / heating system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210572510.7A CN103900138B (en) | 2012-12-25 | 2012-12-25 | A kind of double-compressor air energy heat pump heating system |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN103900138A true CN103900138A (en) | 2014-07-02 |
| CN103900138B CN103900138B (en) | 2016-12-28 |
Family
ID=50991626
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201210572510.7A Expired - Fee Related CN103900138B (en) | 2012-12-25 | 2012-12-25 | A kind of double-compressor air energy heat pump heating system |
Country Status (6)
| Country | Link |
|---|---|
| US (1) | US20150292779A1 (en) |
| JP (1) | JP2015505949A (en) |
| CN (1) | CN103900138B (en) |
| AU (1) | AU2013350341A1 (en) |
| DE (1) | DE112013003771T5 (en) |
| WO (1) | WO2014101463A1 (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105241141A (en) * | 2015-09-23 | 2016-01-13 | 广东美的暖通设备有限公司 | Air cooled heat pump water chiller-heater unit and defrosting control method thereof |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP6318078B2 (en) * | 2014-11-21 | 2018-04-25 | ヤンマー株式会社 | heat pump |
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| CN110781548B (en) * | 2019-11-04 | 2023-08-01 | 舒创电气科技(辽宁)有限公司 | Heat pump unit indoor pipeline design method and heat pump indoor pipeline |
| CN111929088B (en) * | 2020-07-30 | 2022-08-16 | 广东纽恩泰新能源科技发展有限公司 | High-efficiency energy-saving air source heat pump water chilling unit testing system and method |
| CN113854928B (en) * | 2021-11-18 | 2022-09-02 | 佛山市顺德区乐普达电机有限公司 | Motor structure with heating function for dish washing machine |
| CN114353324B (en) * | 2022-01-07 | 2023-09-26 | 吉林瑞科汉斯电气股份有限公司 | Double-compressor air source heat pump heating system |
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Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5984198A (en) * | 1997-06-09 | 1999-11-16 | Lennox Manufacturing Inc. | Heat pump apparatus for heating liquid |
| CN1467445A (en) * | 2002-07-03 | 2004-01-14 | Lg������ʽ���� | Compressor-controlling device and method for air conditioner comprising a plurality of compressors |
| JP2007278677A (en) * | 2006-04-12 | 2007-10-25 | Sharp Corp | Heat pump type water heater |
| CN101298924A (en) * | 2007-05-01 | 2008-11-05 | 日立空调·家用电器株式会社 | Hot pump type hot water supplying floor heating apparatus |
| GB2476274A (en) * | 2009-12-17 | 2011-06-22 | Aquamarine Power Ltd | Using wave power in a heating and cooling system |
| CN202119094U (en) * | 2011-05-31 | 2012-01-18 | 中国科学院广州能源研究所 | Instant heating type heat pump heater in multi-level serial connection |
| EP2420745A2 (en) * | 2010-08-17 | 2012-02-22 | Lg Electronics Inc. | Heat pump heating system |
Family Cites Families (14)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4713525A (en) * | 1986-07-23 | 1987-12-15 | Kowah, Inc. | Microcomputer controlled instant electric water heating and delivery system |
| US5325822A (en) * | 1991-10-22 | 1994-07-05 | Fernandez Guillermo N | Electrtic, modular tankless fluids heater |
| US6782309B2 (en) * | 2000-11-07 | 2004-08-24 | 9090-3493 Quebec, Inc. | SPA controller computer interface |
| JP2002310505A (en) * | 2001-04-13 | 2002-10-23 | Noritz Corp | External water heater-utilizing hot water supply apparatus |
| JP3847195B2 (en) * | 2002-03-27 | 2006-11-15 | 大阪瓦斯株式会社 | External server and communication system |
| JP2004257646A (en) * | 2003-02-26 | 2004-09-16 | Sanyo Electric Co Ltd | Hot water heating apparatus and its control method |
| JP4077766B2 (en) * | 2003-06-03 | 2008-04-23 | 松下電器産業株式会社 | Heat pump water heater |
| US7802441B2 (en) * | 2004-05-12 | 2010-09-28 | Electro Industries, Inc. | Heat pump with accumulator at boost compressor output |
| CN1279322C (en) * | 2004-10-28 | 2006-10-11 | 上海交通大学 | Household cold, heat and power triple supply system adopting vapor compression type electrothermal pump |
| EP2157381B1 (en) * | 2007-05-28 | 2019-02-06 | Panasonic Intellectual Property Management Co., Ltd. | Cogeneration system |
| CN201074920Y (en) * | 2007-06-27 | 2008-06-18 | 王全龄 | Heat pump type air conditioner and water heater being suitable for broad temperature surroundings running in high efficiency |
| US8498523B2 (en) * | 2009-02-03 | 2013-07-30 | Intellihot, Inc. | Apparatus and control method for a hybrid tankless water heater |
| CN201779833U (en) * | 2010-07-30 | 2011-03-30 | 福州斯狄渢电热水器有限公司 | Air-source instantaneous water heater |
| CN203190488U (en) * | 2012-12-25 | 2013-09-11 | 福州斯狄渢电热水器有限公司 | Double-compressor air-energy heat-pump heat-supply and heating system |
-
2012
- 2012-12-25 CN CN201210572510.7A patent/CN103900138B/en not_active Expired - Fee Related
-
2013
- 2013-09-05 JP JP2014553612A patent/JP2015505949A/en active Pending
- 2013-09-05 AU AU2013350341A patent/AU2013350341A1/en not_active Abandoned
- 2013-09-05 DE DE201311003771 patent/DE112013003771T5/en not_active Withdrawn
- 2013-09-05 WO PCT/CN2013/082977 patent/WO2014101463A1/en active Application Filing
- 2013-09-05 US US14/362,162 patent/US20150292779A1/en not_active Abandoned
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5984198A (en) * | 1997-06-09 | 1999-11-16 | Lennox Manufacturing Inc. | Heat pump apparatus for heating liquid |
| CN1467445A (en) * | 2002-07-03 | 2004-01-14 | Lg������ʽ���� | Compressor-controlling device and method for air conditioner comprising a plurality of compressors |
| JP2007278677A (en) * | 2006-04-12 | 2007-10-25 | Sharp Corp | Heat pump type water heater |
| CN101298924A (en) * | 2007-05-01 | 2008-11-05 | 日立空调·家用电器株式会社 | Hot pump type hot water supplying floor heating apparatus |
| GB2476274A (en) * | 2009-12-17 | 2011-06-22 | Aquamarine Power Ltd | Using wave power in a heating and cooling system |
| EP2420745A2 (en) * | 2010-08-17 | 2012-02-22 | Lg Electronics Inc. | Heat pump heating system |
| CN202119094U (en) * | 2011-05-31 | 2012-01-18 | 中国科学院广州能源研究所 | Instant heating type heat pump heater in multi-level serial connection |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105241141A (en) * | 2015-09-23 | 2016-01-13 | 广东美的暖通设备有限公司 | Air cooled heat pump water chiller-heater unit and defrosting control method thereof |
| CN105241141B (en) * | 2015-09-23 | 2018-09-07 | 广东美的暖通设备有限公司 | Air-cooled heat pump water chiller-heater units and its defrosting control method |
Also Published As
| Publication number | Publication date |
|---|---|
| CN103900138B (en) | 2016-12-28 |
| WO2014101463A1 (en) | 2014-07-03 |
| US20150292779A1 (en) | 2015-10-15 |
| DE112013003771T5 (en) | 2015-05-07 |
| JP2015505949A (en) | 2015-02-26 |
| AU2013350341A1 (en) | 2014-07-10 |
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