CN213334650U - Double-source heat pump unit control system - Google Patents
Double-source heat pump unit control system Download PDFInfo
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- CN213334650U CN213334650U CN202021242678.8U CN202021242678U CN213334650U CN 213334650 U CN213334650 U CN 213334650U CN 202021242678 U CN202021242678 U CN 202021242678U CN 213334650 U CN213334650 U CN 213334650U
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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
- Y02B10/00—Integration of renewable energy sources in buildings
- Y02B10/20—Solar thermal
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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
- Y02B10/00—Integration of renewable energy sources in buildings
- Y02B10/40—Geothermal heat-pumps
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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
- Y02B10/00—Integration of renewable energy sources in buildings
- Y02B10/70—Hybrid systems, e.g. uninterruptible or back-up power supplies integrating renewable energies
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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
- Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
- Y02P80/00—Climate change mitigation technologies for sector-wide applications
- Y02P80/20—Climate change mitigation technologies for sector-wide applications using renewable energy
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Abstract
The application discloses double-source heat pump unit control system, including the control panel, the control panel is connected with heat source change over switch K, the solenoid valve of controlling the start-stop of air source heat pump and double-source heat pump and the sensor that detects the various temperature data of double-source heat pump unit that control air source heat pump and double-source heat pump switch over. Has the following advantages: the low-temperature heat energy (solar energy, geothermal energy, industrial waste heat and the like) is effectively utilized for supplying heat, the intelligent control device is utilized for carrying out complementary heat supply on the low-temperature heat energy and the high-energy-efficiency air source heat pump, the comprehensive energy efficiency of unit operation is improved, and the project operation cost is reduced.
Description
Technical Field
The utility model relates to a double-source heat pump unit control system belongs to heat pump heating technical field.
Background
With the development of science and technology of society, the demand of heat energy is continuously increased, but most of the heat energy is formed in a combustion mode, air pollution is a necessary product of human social activities and becomes an inevitable reality in the whole human life, energy conservation and environmental protection become key problems of sustainable development of the future society, and comprehensive development and utilization of renewable energy become a key direction of energy development and utilization. At present, new sources of electric energy are various, and solar power generation, wind power generation, hydroelectric power generation, tidal power generation, nuclear power generation and the like exist, so that the conversion of coal into electricity becomes a key mode for treating air pollution in society. Since the advent of the heat pump technology, the heat pump technology has become a research hotspot due to the unique advantages of high efficiency, energy conservation and environmental protection, and the heat pump energy-saving technology has also been widely popularized in China as a national key energy-saving technology popularization project, wherein the air source heat pump unit has high utilization rate of reproducible air energy, is convenient to install, and is equipment with remarkable energy conservation.
However, the heating capacity of the air source heat pump fluctuates greatly along with the change of the environment, the air source heat pump can be defrosted frequently when the humidity is high, and the heating capacity is obviously reduced when the energy efficiency is reduced when the temperature is low. On the basis, most of the solutions are to add auxiliary electric heating to maintain heat, so that the power consumption is increased suddenly, and a large amount of energy is wasted. Therefore, when a multi-energy complementary mode is sought, the double-source heat pump system is a high-energy-efficiency heat supply system combining low-temperature heat energy (solar energy, geothermal energy, industrial waste heat and the like) and the double-source heat pump, the double-source heat pump is provided with an air injection enthalpy increasing system, an air source can run at low temperature under the condition without a heat source, the continuous heat supply is ensured, the stable running of equipment becomes a key technology in the switching of the double heat sources, and the high-energy-efficiency switching point of the low-temperature heat source and the air source can be intelligently selected to achieve the stable running.
Disclosure of Invention
The to-be-solved technical problem of the utility model is to above not enough, provide a dual-source heat pump set control system, effectively utilize low temperature heat energy (solar energy, geothermal energy, industry waste heat etc.) to supply heat, utilize intelligent control device to carry out complementary heat supply to the air source heat pump of low temperature heat energy and high energy efficiency, improve the comprehensive efficiency of unit operation, reduce project working costs.
For solving the technical problem, the utility model discloses a following technical scheme:
a control system of a double-source heat pump unit comprises a control panel, wherein the control panel is connected with a heat source change-over switch K for controlling the switching of an air source heat pump and the double-source heat pump, an electromagnetic valve for controlling the starting and stopping of the air source heat pump and the double-source heat pump, and a sensor for detecting various temperature data of the double-source heat pump unit.
Furthermore, a JP1 module of the control panel is connected with a transformer, a pin 0 of the transformer is connected with one end of a switch QF3, the other end of the switch QF3 is connected with a live wire U of three-phase power, and a pin 1 of the transformer is connected with a zero line N of the three-phase power;
live wire U, V, W of three-phase electricity is connected with circuit breaker QF1 one end and circuit breaker QF2 one end, and the circuit breaker QF1 other end is connected with contactor KM1 switch one end, and the contactor KM1 switch other end is connected with thermorelay CT one end, and the thermorelay CT other end is connected with the press, and the circuit breaker QF2 other end is connected with contactor KM2 switch one end, and contactor KM2 switch other end is connected with thermorelay FR one end, and the thermorelay FR other end is connected with the fan.
Further, a sensor RP1 is connected to a JP2 module of the control board, a sensor RP1 is used for detecting the outlet water temperature of the heat pump, a sensor RP2 is connected to a JP3 module of the control board, a sensor RP2 is used for detecting the return water temperature of the heat pump, a sensor RP3 is connected to a JP4 module of the control board, a sensor RP3 is used for detecting the ambient temperature, a sensor RP4 is connected to a JP5 module of the control board, a sensor RP4 is used for detecting the water tank temperature, a sensor RP5 is connected to a JP6 module of the control board, and a sensor RP5 is used for.
Furthermore, one end of a heat source change-over switch K is connected to the 6 pins of the JP22 module of the control board, the other end of the heat source change-over switch K is connected to the 1 pin of the JP22 module of the control board, and the 1 pin of the JP22 module of the control board is connected to the input common terminal.
Further, 1 foot of the JP21 module of control panel connects output common port, and 2 feet of the JP21 module of control panel are connected with relay KA3 one end, and the air source solenoid valve is connected to the relay KA3 other end, and 5 feet of the JP21 module of control panel are connected with relay KA2 one end, and the air conditioner pump is connected to the relay KA2 other end, and 6 feet of the JP21 module of control panel are connected with relay KA1 one end, and the water source solenoid valve is connected to the relay KA1 other end.
Furthermore, a 9 pin of the JP21 module of the control board is connected with one end of a contactor KM2, the other end of the contactor KM2 is connected with the fan, a 11 pin of the JP21 module of the control board is connected with one end of a contactor KM1, the other end of the contactor KM1 is connected with the compressor, and a 12 pin of the JP21 module of the control board is connected with an input public end.
Furthermore, a JP14 module of the control board is connected with a press current detection sensor, and 1-5 pins of the JP19 module of the control board are connected with a motor of an enthalpy-increasing electronic expansion valve.
The utility model adopts the above technical scheme, compare with prior art, have following technological effect:
the low-temperature heat energy (solar energy, geothermal energy, industrial waste heat and the like) is effectively utilized for supplying heat, the intelligent control device is utilized for carrying out complementary heat supply on the low-temperature heat energy and the high-energy-efficiency air source heat pump, the comprehensive energy efficiency of unit operation is improved, and the project operation cost is reduced.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the embodiments or the technical solutions in the prior art will be briefly described below. Throughout the drawings, like elements or portions are generally identified by like reference numerals. In the drawings, elements or portions are not necessarily drawn to scale.
Fig. 1 is a schematic structural diagram of a control system of the dual-source heat pump unit of the present invention.
Detailed Description
Embodiment 1, as shown in fig. 1, a dual-source heat pump unit control system, including the control panel, the model of control panel is MD61, the JP1 module of control panel is connected with the transformer, 0 foot of transformer is connected with switch QF3 one end, the switch QF3 other end is connected with live wire U of three-phase electricity, 1 foot of transformer is connected with zero line N of three-phase electricity, live wire U, V, W of three-phase electricity is connected with circuit breaker QF1 one end and circuit breaker QF2 one end, the circuit breaker QF1 other end is connected with contactor KM1 switch one end, the contactor KM1 switch other end is connected with thermorelay CT one end, the thermorelay CT other end is connected with the press, the circuit breaker QF2 other end is connected with contactor KM2 switch one end, the contactor KM2 switch other end is connected with thermorelay.
The JP2 module of control panel is connected with sensor RP1, sensor RP1 is used for detecting heat pump leaving water temperature, the JP3 module of control panel is connected with sensor RP2, sensor RP2 is used for detecting heat pump return water temperature, the JP4 module of control panel is connected with sensor RP3, sensor RP3 is used for detecting ambient temperature, the JP5 module of control panel is connected with sensor RP4, sensor RP4 is used for detecting the water tank temperature, the JP6 module of control panel is connected with sensor RP5, sensor RP5 is used for detecting compressor exhaust temperature.
The JP14 module of the control board is connected with a press current detection sensor.
The 6 feet of the JP22 module of the control board are connected with one end of a heat source change-over switch K, the other end of the heat source change-over switch K is connected with the 1 foot of the JP22 module of the control board, and the 1 foot of the JP22 module of the control board is connected with an input public end.
The utility model discloses a control panel's JP21 module's 1 foot connects output common port, the 2 feet of the JP21 module of control panel are connected with relay KA3 one end, the air source solenoid valve is connected to the relay KA3 other end, the 5 feet of the JP21 module of control panel are connected with relay KA2 one end, the air conditioning pump is connected to the relay KA2 other end, the 6 feet of the JP21 module of control panel are connected with relay KA1 one end, the water source solenoid valve is connected to the relay KA1 other end, the 9 feet of the JP21 module of control panel are connected with contactor KM2 one end, the fan is connected to the contactor KM2 other end, the 11 feet of the JP21 module of control panel are connected with contactor KM1 one end, the compressor is connected to the contactor KM.
The JP19 module 1-5 feet of the control board are connected with a motor of an enthalpy-increasing electronic expansion valve.
The implementation method of the double-source heat pump unit control system comprises two modes, namely an air source heat pump operation mode, an energy storage mode, a double-source heat pump operation mode and a double-source heat pump continuous operation mode.
The air source heat pump operation + energy storage + double source heat pump operation mode comprises the following steps:
after the unit is started and stopped, the control panel controls the relay KA2 to enable the air-conditioning pump to operate, and the sensor RP2 monitors the return water temperature of the heat pump in real time;
when the return water temperature of the heat pump is less than or equal to the set temperature of minus 3 ℃, and the ambient temperature detected by a unit sensor RP3 is higher than 10 ℃, the relay KA3 energizes the air source electromagnetic valve, the contactor KM2 controls the suction of the fan contactor, and the fan is opened;
the thermal relay FR detects the fan current, when the fan current is larger than a set current protection value, the thermal relay FR is disconnected to stop the signal output of the contactor KM2, the contactor KM1 controls the contactor of the compressor to pull in, and the compressor is started;
the current sensor detects the current of the compressor, when the current of the compressor is larger than a set current protection value, the thermal relay CT is disconnected to stop the signal output of the contactor KM1, at the moment, the unit normally operates, and the low-temperature heat source stores energy.
When unit sensor RP3 detected ambient temperature and is less than 10 ℃, and when sensor RP4 detected water tank temperature and is higher than 12 ℃, relay KA2 control air source solenoid valve outage, and relay KA1 control water source solenoid valve circular telegram simultaneously, the unit carries out the energy storage operation, and heat pump set absorbs the heat energy heating hot water in the energy storage.
When sensor RP4 detects the water tank temperature and is less than 12 ℃, relay KA2 control air source solenoid valve circular telegram, and relay KA1 control water source solenoid valve outage simultaneously, the unit carries out the air source operation, and real-time detection compressor exhaust temperature control increases enthalpy electronic expansion valve, increases along with compressor exhaust temperature increases control increase enthalpy electronic expansion valve aperture and reduces compressor exhaust temperature and guarantee compressor normal operating.
The temperature difference is great day and night in winter in the north, outdoor temperature is high daytime, and air source heat pump can high-efficient operation, and indoor heating relies on air source heat pump completely can. The outdoor ambient temperature is lower at night, when the air source heat pump operation efficiency is relatively lower (the ambient temperature is lower than the set temperature), the operation mode of the double-source heat pump is converted, the heat source at the water side of the double-source heat pump operation is from hot water stored by low-temperature heat energy (solar energy, geothermal energy, industrial waste heat and the like), the temperature of the water tank is detected after the heat of the heat storage water tank is used up, and the operation mode is automatically switched to the air source heat pump operation when the temperature is lower than the set.
The dual source heat pump continuous operation mode comprises the steps of:
after the unit is started and stopped, the electric appliance KA2 controls the operation of the air-conditioning pump, the return water temperature of the heat pump is monitored in real time, when the return water temperature of the heat pump is less than or equal to the set temperature of minus 3 ℃, the relay KA2 controls the air source electromagnetic valve to be powered off when the temperature of the unit detection water tank is higher than 12 ℃, meanwhile, the relay KA1 controls the water source electromagnetic valve to be powered on, and the heat pump unit absorbs heat energy in the low-temperature.
When the sensor RP4 detects that the water tank temperature is lower than 12-2 ℃, relay KA2 controls the circular telegram of air source solenoid valve, and relay KA1 water source solenoid valve cuts off the power supply simultaneously, and the unit carries out the air source operation, and when the water tank temperature is higher than 12 ℃, relay KA2 air source solenoid valve cuts off the power supply, and relay KA1 water source solenoid valve circular telegram simultaneously, heat pump set absorbs the heat energy heating hot water in the low temperature heat source, like this the high-efficient heat source of cyclic utilization operation all the time. The exhaust temperature of the compressor is detected in real time to control the enthalpy-increasing electronic expansion valve, and the opening of the enthalpy-increasing electronic expansion valve is increased along with the increase of the exhaust temperature of the compressor to reduce the exhaust temperature of the compressor so as to ensure the normal operation of the compressor.
The heat source at the water side of the double-source heat pump operation is hot water continuously provided by low-temperature heat energy (solar energy, geothermal energy, industrial waste heat and the like), the low-temperature heat energy is used as a main heat source to operate, the temperature of the water tank is detected after the heat of the heat storage water tank is used up when the heat energy is insufficient, and the operation is automatically switched to the operation of the air source heat pump when the temperature is lower than the set temperature.
The description of the present invention has been presented for purposes of illustration and description, and is not intended to be exhaustive or limited to the invention in the form disclosed. Many modifications and variations will be apparent to practitioners skilled in this art. The embodiment was chosen and described in order to best explain the principles of the invention and the practical application, and to enable others of ordinary skill in the art to understand the invention for various embodiments with various modifications as are suited to the particular use contemplated.
Claims (10)
1. The utility model provides a dual-source heat pump set control system which characterized in that: the system comprises a control panel, wherein the control panel is connected with a heat source change-over switch K for controlling the switching of an air source heat pump and a double source heat pump, an electromagnetic valve for controlling the starting and stopping of the air source heat pump and the double source heat pump, and a sensor for detecting various temperature data of the double source heat pump unit.
2. The control system of a dual-source heat pump unit as claimed in claim 1, wherein: the JP1 module of control panel is connected with the transformer, and the 0 foot of transformer is connected with switch QF3 one end, and the other end of switch QF3 is connected with the live wire U of three-phase electricity, and the 1 foot of transformer is connected with the zero line N of three-phase electricity.
3. The control system of a dual-source heat pump unit as claimed in claim 2, wherein: the live wire U, V, W of three-phase electricity is connected with circuit breaker QF1 one end, and circuit breaker QF1 other end is connected with contactor KM1 switch one end, and the contactor KM1 switch other end is connected with thermorelay CT one end, and thermorelay CT other end is connected with the press.
4. The control system of a dual-source heat pump unit as claimed in claim 2, wherein: the live wire U, V, W of three-phase electricity is connected with circuit breaker QF2 one end, and circuit breaker QF2 other end is connected with contactor KM2 switch one end, and the contactor KM2 switch other end is connected with thermorelay FR one end, and thermorelay FR other end is connected with the fan.
5. The control system of a dual-source heat pump unit as claimed in claim 1, wherein: the JP2 module of control panel is connected with sensor RP1, sensor RP1 is used for detecting heat pump leaving water temperature, the JP3 module of control panel is connected with sensor RP2, sensor RP2 is used for detecting heat pump return water temperature, the JP4 module of control panel is connected with sensor RP3, sensor RP3 is used for detecting ambient temperature, the JP5 module of control panel is connected with sensor RP4, sensor RP4 is used for detecting the water tank temperature, the JP6 module of control panel is connected with sensor RP5, sensor RP5 is used for detecting compressor exhaust temperature.
6. The control system of a dual-source heat pump unit as claimed in claim 1, wherein: the 6 feet of the JP22 module of the control board are connected with one end of a heat source change-over switch K, the other end of the heat source change-over switch K is connected with the 1 foot of the JP22 module of the control board, and the 1 foot of the JP22 module of the control board is connected with an input public end.
7. The control system of a dual-source heat pump unit as claimed in claim 1, wherein: the utility model discloses an air conditioner pump, including JP21 module, relay KA2, relay KA pump, relay JP 10, relay KA pump, relay.
8. The control system of a dual-source heat pump unit as claimed in claim 1, wherein: the device comprises a control panel, a JP21 module, a contactor KM2, a contactor KM2, a contactor KM1, a contactor KM1, a compressor and a JP21 module, wherein the 9 pin of the JP21 module of the control panel is connected with one end of the contactor KM2, the other end of the contactor KM2 is connected with the fan, the 11 pin of the JP21 module of the control panel is connected with one end of the contactor.
9. The control system of a dual-source heat pump unit as claimed in claim 1, wherein: the JP14 module of the control board is connected with a press current detection sensor.
10. The control system of a dual-source heat pump unit as claimed in claim 1, wherein: the JP19 module 1-5 feet of the control board are connected with a motor of an enthalpy-increasing electronic expansion valve.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202021242678.8U CN213334650U (en) | 2020-06-30 | 2020-06-30 | Double-source heat pump unit control system |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202021242678.8U CN213334650U (en) | 2020-06-30 | 2020-06-30 | Double-source heat pump unit control system |
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| Publication Number | Publication Date |
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| CN213334650U true CN213334650U (en) | 2021-06-01 |
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| CN202021242678.8U Active CN213334650U (en) | 2020-06-30 | 2020-06-30 | Double-source heat pump unit control system |
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| CN (1) | CN213334650U (en) |
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