CN215951770U - Solar photovoltaic variable-frequency heat pump unit - Google Patents
Solar photovoltaic variable-frequency heat pump unit Download PDFInfo
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- CN215951770U CN215951770U CN202120551001.0U CN202120551001U CN215951770U CN 215951770 U CN215951770 U CN 215951770U CN 202120551001 U CN202120551001 U CN 202120551001U CN 215951770 U CN215951770 U CN 215951770U
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Abstract
The utility model provides a solar photovoltaic frequency conversion heat pump set, includes: the outdoor unit is internally provided with a main control panel, an AC (alternating current) power supply input device, a variable frequency driving module, a compressor, a four-way reversing valve, a water heat exchanger, an electronic expansion valve, an outdoor heat exchanger, an outdoor fan and a solar photovoltaic conversion module; the indoor unit is internally provided with a water pump, an intermediate energy storage water tank and radiating fins; the solar photovoltaic panel is electrically connected with the solar photovoltaic conversion module arranged in the outdoor unit. The solar photovoltaic variable-frequency heat pump unit is simple in structure and reasonable in design, the comprehensive partial load performance coefficient IPLV (H) can reach more than 8 or even higher by adding the solar photovoltaic panel and the solar photovoltaic conversion module, the compressor and the outdoor fan completely use photovoltaic electricity when solar illumination is stronger, the purposes of saving more energy and protecting more environment and increasing IPLV (H) are achieved, and the national policy requirements of low-carbon home environment and carbon neutralization are responded.
Description
Technical Field
The utility model relates to the technical field of heat pumps, in particular to a solar photovoltaic variable-frequency heat pump unit.
Background
The traditional variable frequency heat pump unit utilizes 220V or 380V AC power supply to a main control panel and a variable frequency driving module to control the operation of a compressor and an outdoor fan, and achieves the heating or refrigerating effect through the Carnot cycle principle. However, in heating in north of China, according to GB/T25127.2-2010 and GB 37480-.
SUMMERY OF THE UTILITY MODEL
Aiming at the defects of the prior art, the utility model provides a solar photovoltaic variable-frequency heat pump unit which is more energy-saving and more environment-friendly and has a higher IPLV (H) value.
In order to realize the technical scheme, the utility model provides a solar photovoltaic variable frequency heat pump unit, which comprises: the outdoor unit is internally provided with a main control panel, an AC power input device, a variable frequency drive module, a compressor, a four-way reversing valve, a water heat exchanger, an electronic expansion valve, an outdoor heat exchanger, an outdoor fan and a solar photovoltaic conversion module, wherein the main control panel and the AC power input device are respectively and electrically connected with the variable frequency drive module, the solar photovoltaic conversion module is electrically connected with the variable frequency drive module, the variable frequency drive module is respectively and electrically connected with the compressor and the outdoor fan, an air outlet of the compressor is connected with a first interface of the four-way reversing valve, an air inlet of the compressor is connected with a second interface of the four-way reversing valve, a third interface of the four-way reversing valve is connected with an air inlet of the water heat exchanger, an air outlet of the water heat exchanger is connected with an air inlet of the electronic expansion valve through a pipeline, and an air outlet of the electronic expansion valve is connected with an inlet of the outdoor heat exchanger, the outlet of the outdoor heat exchanger is connected to a fourth interface of the four-way reversing valve through a pipeline; the indoor unit is connected with the water heat exchanger of the outdoor unit through a pipeline; the solar photovoltaic panel is electrically connected with the solar photovoltaic conversion module arranged in the outdoor unit.
Preferably, a water pump, an intermediate energy storage water tank and a radiating fin are installed in the indoor unit, wherein a water outlet of the water pump is connected with a water inlet of the reclaimed water heat exchanger in the outdoor unit through a pipeline, a water outlet of the reclaimed water heat exchanger in the outdoor unit is connected to a water inlet of the radiating fin through a pipeline, a water outlet of the radiating fin is connected with a water inlet of the intermediate energy storage water tank, and a water outlet of the intermediate energy storage water tank is connected to a water inlet of the water pump through a pipeline.
Preferably, the main control panel controls the AC power input module and the solar photovoltaic conversion module to realize automatic switching of an AC/DC power supply, and when the solar illumination is strong enough to meet the sun rays, the DC direct current converted by the solar photovoltaic conversion module is used as a variable-frequency driving module to supply power, so that the compressor and the outdoor fan can completely use the DC direct current; when the sunshine is insufficient in the morning, afternoon and rainy days, the intelligent unit preferentially uses a DC photovoltaic power supply, and when the sunshine is insufficient, AC alternating current is used for supplementing; at night, during peak-valley electricity utilization time, the unit automatically converts to use AC peak-valley low-price electricity.
In the technical scheme, in the actual working process, when the solar illumination ratio is stronger, a 12-24V DC power supply generated by a solar photovoltaic panel is sent to an outdoor unit, is converted into a 260-310V DC power supply through a solar photovoltaic conversion module and is supplied to a variable-frequency driving module, and the variable-frequency driving module supplies power to a compressor and an outdoor fan, so that the compressor and the outdoor fan completely utilize the photovoltaic power supply, and the AC/DC intelligent following technology is utilized from the variable-frequency driving module of a heat pump unit, and when the solar illumination ratio is stronger, the photovoltaic power supply is completely utilized; when sunlight is insufficient in the morning, afternoon and rainy days, the unit intelligently preferentially uses a photovoltaic power supply, when sunlight is insufficient, an AC power supply is used for supplementing, a compressor is driven to compress low-temperature and low-pressure refrigerant gas into high-temperature and high-pressure refrigerant gas, the refrigerant gas enters a water heat exchanger through a four-way reversing valve to release heat in the condensation process, the heat is released into water quality, the temperature of a water medium is increased, the high-temperature water medium is pushed by the power of a water pump of an indoor unit and then reaches radiating fins of a room through an intermediate energy storage water tank to release the heat into the indoor room so as to achieve the purpose of increasing the temperature of the indoor room, the high-temperature and high-pressure refrigerant gas is changed into liquid after releasing heat, the liquid refrigerant is reduced in pressure and cooled through an electronic expansion valve throttling device, the outdoor heat exchanger is changed into low-temperature and low-pressure gas through an evaporation process, an outdoor fan pushes outdoor air to flow to absorb the heat from the outdoor air, the gas changed into medium temperature and low pressure returns to the compressor, and the circulation is carried out.
Preferably, the solar photovoltaic panel is independently installed outdoors, and can be installed in an area convenient for receiving sunlight according to actual conditions.
Preferably, the solar photovoltaic panel is mounted on a housing of the outdoor unit, so that the overall structure is more compact.
Preferably, the outdoor heat exchanger is a fin type heat exchanger, so that the heat exchange effect is enhanced.
Preferably, the water heat exchanger is a high-efficiency tank type heat exchanger or a plate type heat exchanger, and is convenient to arrange.
Preferably, the radiating fin is an aluminum alloy radiating fin.
The solar photovoltaic variable frequency heat pump unit provided by the utility model has the beneficial effects that: the solar photovoltaic variable-frequency heat pump unit is simple in structure and reasonable in design, a 12-24V DC power supply of a solar photovoltaic panel is converted into a 260-310V DC power supply through the solar photovoltaic conversion module by adding the solar photovoltaic panel and the solar photovoltaic conversion module, the DC power supply is supplied to a variable-frequency driving module of the variable-frequency heat pump unit, an AC/DC intelligent following coexistence technology is utilized, and when strong light is sufficient in solar illumination, a compressor and an outdoor fan completely use the photovoltaic power supply; when sunlight is insufficient, the DC direct current is preferentially used, and the AC alternating current is only used as a supplement; and the AC alternating current is reused at the peak-valley electricity at night. By using the method, the comprehensive partial load performance coefficient IPLV (H) can reach more than 8 and even higher, and the aims of saving more energy and protecting more environment and increasing IPLV (H) are fulfilled.
Drawings
FIG. 1 is a schematic view of the structural connection of the present invention.
In the figure: 1. a main control panel; 2. an AC power input device; 3. a variable frequency drive module; 4. a compressor; 5. a four-way reversing valve; 6. a water heat exchanger; 7. a water pump; 8. an intermediate energy storage water tank; 9. a heat sink; 10. an indoor unit; 11. an outdoor unit; 12. An electronic expansion valve; 13. an outdoor heat exchanger; 14. an outdoor fan; 15. a solar photovoltaic panel; 16. a solar photovoltaic conversion module.
Detailed Description
The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments obtained by a person skilled in the art without making any inventive step are within the scope of the present invention.
Example (b): a solar photovoltaic variable frequency heat pump unit.
Referring to fig. 1, a solar photovoltaic variable frequency heat pump unit includes:
an outdoor unit 11, a main control panel 1, an AC power input device 2, a variable frequency driving module 3, a compressor 4, a four-way reversing valve 5, a water heat exchanger 6, an electronic expansion valve 12, an outdoor heat exchanger 13, an outdoor fan 14 and a solar photovoltaic conversion module 16 are installed in the outdoor unit 10, wherein the main control panel 1 and the AC power input module 2 are respectively electrically connected with the variable frequency driving module 3, the AC power input device 2 is connected with an external 220V or 380V AC power supply for providing 220V or 380V AC power supply for the variable frequency driving module 3, the main control panel 1 is used for automatically controlling the variable frequency output of the variable frequency driving module 3, the solar photovoltaic conversion module 16 is electrically connected with the variable frequency driving module 3, the solar photovoltaic conversion module 16 is used for converting collected solar energy into 260-310V DC power supply and supplying the DC power supply to the variable frequency driving module 3, the variable frequency driving module 3 is respectively electrically connected with the compressor 4 and the outdoor fan 14, the variable frequency driving module 3 supplies power to the compressor 4 and the outdoor fan 14, the air outlet of the compressor 4 is connected with a first interface of the four-way reversing valve 5, the air inlet of the compressor 4 is connected with a second interface of the four-way reversing valve 5, a third interface of the four-way reversing valve 5 is connected with the air inlet of the water heat exchanger 6, the air outlet of the water heat exchanger 6 is connected to the air inlet of the electronic expansion valve 12 through a pipeline, the air outlet of the electronic expansion valve 12 is connected with the inlet of the outdoor heat exchanger 13, and the outlet of the outdoor heat exchanger 13 is connected to a fourth interface of the four-way reversing valve 5 through a pipeline; in the actual working process, the working principle of the outdoor unit is as follows: the variable-frequency driving module 3 is electrified to drive the compressor 4 to compress low-temperature low-pressure refrigerant gas into high-temperature high-pressure refrigerant gas, the refrigerant gas enters the water heat exchanger 6 through the four-way reversing valve 5 to release heat in the condensation process and release heat into water quality, the high-temperature high-pressure refrigerant gas turns into liquid after releasing heat, the refrigerant gas is reduced in pressure and cooled after passing through the throttling device of the electronic expansion valve 12, the liquid refrigerant turns into low-temperature low-pressure gas in the outdoor heat exchanger 13 in the evaporation process, the outdoor fan 14 pushes outdoor air to flow to absorb heat from the outdoor air, the heat is changed into medium-temperature low-pressure gas, and the medium-temperature low-pressure gas returns to the compressor 4, and the process is circulated;
the indoor unit 10 is internally provided with a water pump 7, an intermediate energy storage water tank 8 and a radiating fin 9, wherein a water outlet of the water pump 7 is connected with a water inlet of a water-in-water heat exchanger 6 of an outdoor unit 11 through a pipeline, a water outlet of the water-in-water heat exchanger 6 of the outdoor unit 11 is connected with a water inlet of the radiating fin 9 through a pipeline, a water outlet of the radiating fin 9 is connected with a water inlet of the intermediate energy storage water tank 8, a water outlet of the intermediate energy storage water tank 8 is connected with a water inlet of the water pump 7 through a pipeline, and the intermediate energy storage water tank 8 is arranged to effectively store heat energy in water, so that a good energy-saving effect is achieved; in the actual working process, the working principle of the indoor unit is as follows: the temperature of the aqueous medium is increased more and more through the heat exchange effect of the water heat exchanger 6 in the outdoor unit 11, the high-temperature aqueous medium is pushed by the power of the water pump 7 of the indoor unit 10, passes through the intermediate energy storage water tank 8 and then reaches the radiating fins 9 of the room to radiate heat and release the heat into the indoor room, so that the purpose of increasing the temperature of the indoor room is achieved, in the embodiment, the radiating fins 9 are aluminum alloy radiating fins, and the radiating efficiency can be improved;
the solar photovoltaic panel 15 is electrically connected with a solar photovoltaic conversion module 16 arranged in the outdoor unit 11, the solar photovoltaic panel 15 can be independently arranged in an outdoor area convenient for receiving sunlight according to actual conditions, and can also be directly arranged on a shell of the outdoor unit 11, so that the whole structure is more compact, in the actual working process, the solar photovoltaic panel 15 is used for collecting sunlight, the solar photovoltaic conversion module 16 converts a 12-24V DC power supply of the solar photovoltaic panel into a 260-310V DC power supply to be supplied to a variable-frequency driving module 3 of the variable-frequency heat pump unit, and by utilizing an AC/DC intelligent following technology, when the solar illumination is stronger, a compressor and an outdoor fan completely use the photovoltaic power supply; the DC photovoltaic direct current is preferentially used in the morning, afternoon and rainy days when the sunlight is insufficient, and the AC alternating current is only used as a supplement; the peak-valley electricity at night uses AC alternating current. So used, the integrated part load performance coefficient iplv (h) may reach above 8 or even higher.
The specific working principle of the utility model is as follows: when the solar illumination is relatively strong, a 12-24V DC power supply generated by the solar photovoltaic panel 15 is sent to the outdoor unit 11, is converted into a 260-310V DC power supply through the solar photovoltaic conversion module 16, and is supplied to the variable frequency driving module 3, and the variable frequency driving module 3 supplies power to the compressor 4 and the outdoor fan 14, so that the compressor 4 and the outdoor fan 14 completely use photovoltaic electricity. The variable frequency driving module 3 of the slave heat pump unit utilizes the AC/DC intelligent following technology, and when the solar illumination is stronger, the compressor and the outdoor fan completely use DC direct current; when sunlight is insufficient, photovoltaic electricity is preferentially used, when sunlight is insufficient, AC alternating current is obtained from the AC power input device 2 and the main control panel 1, the AC alternating current is only used as supplement, the compressor 4 is driven to compress low-temperature low-pressure refrigerant gas into high-temperature high-pressure refrigerant gas, the high-temperature high-pressure refrigerant gas enters the water heat exchanger 6 through the four-way reversing valve 5 to be subjected to heat release in the condensation process, heat is released into water quality, the temperature of the water medium is increased, the high-temperature water medium is pushed by the power of the water pump 7 of the indoor unit 10, passes through the intermediate energy storage water tank 8 and then reaches the radiating fins 9 of a room to be subjected to radiation heat release, and the heat is released into the indoor room to achieve the purpose of increasing the temperature of the indoor room, the high-temperature high-pressure refrigerant gas is changed into liquid after heat release, the liquid refrigerant is reduced in pressure and cooled after passing through the throttling device of the electronic expansion valve 12, and the outdoor heat exchanger 13 is changed into low-temperature low-pressure gas through the liquid refrigerant in the evaporation process, the outdoor fan 14 pushes the outdoor air to flow to absorb heat from the outdoor air, and the gas changed into medium-temperature low-pressure gas returns to the compressor 4, and the cycle is repeated.
The solar photovoltaic variable-frequency heat pump unit is simple in structure and reasonable in design, a 12-24V DC power supply of a solar photovoltaic panel 15 is converted into a 260-310V DC power supply through the solar photovoltaic conversion module 16 by adding the solar photovoltaic panel 15 and the solar photovoltaic conversion module 16 and is supplied to a variable-frequency driving module 3 of the variable-frequency heat pump unit, an AC/DC intelligent following coexistence technology is utilized, when the solar illumination ratio is strong, a compressor and an outdoor fan completely use DC direct current, when the sunlight is insufficient, the DC direct current is preferentially used, and AC alternating current is used as supplement; and the AC alternating current is used again when the peak and the valley of the night are electrified. Therefore, the comprehensive partial load performance coefficient IPLV (H) can reach more than 8 and even higher, photovoltaic electricity is completely used in relatively intense solar light, and the purposes of more energy conservation and environmental protection and higher IPLV (H) are achieved.
The above description is only for the preferred embodiment of the present invention, but the present invention should not be limited to the embodiment and the disclosure of the drawings, and therefore, all equivalent or modifications that do not depart from the spirit of the present invention are intended to fall within the scope of the present invention.
Claims (7)
1. The utility model provides a solar photovoltaic frequency conversion heat pump set which characterized in that includes:
the outdoor unit is internally provided with a main control panel, an AC power input device, a variable frequency drive module, a compressor, a four-way reversing valve, a water heat exchanger, an electronic expansion valve, an outdoor heat exchanger, an outdoor fan and a solar photovoltaic conversion module, wherein the main control panel and the AC power input device are respectively and electrically connected with the variable frequency drive module, the solar photovoltaic conversion module is electrically connected with the variable frequency drive module, the variable frequency drive module is respectively and electrically connected with the compressor and the outdoor fan, an air outlet of the compressor is connected with a first interface of the four-way reversing valve, an air inlet of the compressor is connected with a second interface of the four-way reversing valve, a third interface of the four-way reversing valve is connected with an air inlet of the water heat exchanger, an air outlet of the water heat exchanger is connected with an air inlet of the electronic expansion valve through a pipeline, and an air outlet of the electronic expansion valve is connected with an inlet of the outdoor heat exchanger, the outlet of the outdoor heat exchanger is connected to a fourth interface of the four-way reversing valve through a pipeline;
the indoor unit is connected with the water heat exchanger of the outdoor unit through a pipeline;
the solar photovoltaic panel is electrically connected with a solar photovoltaic conversion module arranged in the outdoor unit, the main control panel controls the AC power input module and the solar photovoltaic conversion module to realize automatic switching of an AC/DC power supply, and when the solar illumination is strong enough sunlight, the DC direct current converted by the solar photovoltaic conversion module is used as a variable-frequency driving module to supply power, so that the compressor and the outdoor fan completely use the DC direct current; when the sunshine is insufficient in the morning, afternoon and rainy days, the intelligent unit preferentially uses a DC photovoltaic power supply, and when the sunshine is insufficient, AC alternating current is used for supplementing; at night, during peak-valley electricity utilization time, the unit automatically converts to use AC peak-valley low-price electricity.
2. The solar photovoltaic variable frequency heat pump unit of claim 1, characterized in that: the indoor unit is internally provided with a water pump, an intermediate energy storage water tank and a radiating fin, wherein a water outlet of the water pump is connected with a water inlet of the water heat exchanger in the outdoor unit through a pipeline, a water outlet of the water heat exchanger in the outdoor unit is connected to a water inlet of the radiating fin through a pipeline, a water outlet of the radiating fin is connected with a water inlet of the intermediate energy storage water tank, and a water outlet of the intermediate energy storage water tank is connected to a water inlet of the water pump through a pipeline.
3. The solar photovoltaic variable frequency heat pump unit of claim 1, characterized in that: the solar photovoltaic panel is independently installed outdoors.
4. The solar photovoltaic variable frequency heat pump unit of claim 1, characterized in that: the solar photovoltaic panel is arranged on the outer shell of the outdoor unit.
5. The solar photovoltaic variable frequency heat pump unit of claim 1, characterized in that: the outdoor heat exchanger is a finned heat exchanger.
6. The solar photovoltaic variable frequency heat pump unit of claim 1, characterized in that: the water heat exchanger is a high-efficiency tank type heat exchanger or a plate type heat exchanger.
7. The solar photovoltaic variable frequency heat pump unit of claim 2, characterized in that: the radiating fins are aluminum alloy radiating fins.
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| Application Number | Priority Date | Filing Date | Title |
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| CN202120551001.0U CN215951770U (en) | 2021-03-17 | 2021-03-17 | Solar photovoltaic variable-frequency heat pump unit |
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| CN202120551001.0U CN215951770U (en) | 2021-03-17 | 2021-03-17 | Solar photovoltaic variable-frequency heat pump unit |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113028678A (en) * | 2021-03-17 | 2021-06-25 | 广州哈思新能源科技有限公司 | Solar photovoltaic variable-frequency heat pump unit |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113028678A (en) * | 2021-03-17 | 2021-06-25 | 广州哈思新能源科技有限公司 | Solar photovoltaic variable-frequency heat pump unit |
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