CN111981564A - Heat exchange device of roof-type solar hot air auxiliary type air source heat pump outdoor unit - Google Patents
Heat exchange device of roof-type solar hot air auxiliary type air source heat pump outdoor unit Download PDFInfo
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- CN111981564A CN111981564A CN202010859697.3A CN202010859697A CN111981564A CN 111981564 A CN111981564 A CN 111981564A CN 202010859697 A CN202010859697 A CN 202010859697A CN 111981564 A CN111981564 A CN 111981564A
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- Prior art keywords
- evaporator
- air
- heat pump
- air source
- source heat
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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
- F24D19/02—Arrangement of mountings or supports for radiators
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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
- F24D15/00—Other domestic- or space-heating systems
- F24D15/04—Other domestic- or space-heating systems using heat pumps
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24S—SOLAR HEAT COLLECTORS; SOLAR HEAT SYSTEMS
- F24S10/00—Solar heat collectors using working fluids
- F24S10/50—Solar heat collectors using working fluids the working fluids being conveyed between plates
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24S—SOLAR HEAT COLLECTORS; SOLAR HEAT SYSTEMS
- F24S20/00—Solar heat collectors specially adapted for particular uses or environments
- F24S20/20—Solar heat collectors for receiving concentrated solar energy, e.g. receivers for solar power plants
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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
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E10/00—Energy generation through renewable energy sources
- Y02E10/40—Solar thermal energy, e.g. solar towers
- Y02E10/44—Heat exchange systems
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- Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- Thermal Sciences (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Life Sciences & Earth Sciences (AREA)
- Sustainable Development (AREA)
- Sustainable Energy (AREA)
- Photovoltaic Devices (AREA)
Abstract
The invention provides a heat exchange device of a roof-type solar hot air auxiliary type air source heat pump outdoor unit, which comprises an air source heat pump evaporator, a closed evaporator shell, a fan and a solar heat collecting plate, wherein the air source heat pump evaporator and the fan are arranged in the closed evaporator shell, the solar heat collecting plate is arranged in the heat collecting plate shell, the heat collecting plate shell and the closed evaporator shell are fixedly connected through an evaporator air duct, an evaporator air duct partition plate is arranged in the evaporator air duct, a heat pump air supply opening is formed in the side wall, located on one side of the air source heat pump evaporator, of the closed evaporator shell, a filter screen is embedded in the heat pump air supply opening, and a turnover cover plate is arranged on the filter screen. The invention utilizes the area of the roof to the maximum extent, effectively realizes the utilization of solar heat radiation in winter and improves the energy efficiency of the air source heat pump heating system.
Description
Technical Field
The invention relates to the technical field of heat pumps and heating, in particular to a heat exchange device of an outdoor unit of a roof-type solar hot air auxiliary type air source heat pump.
Background
With the rapid development of national economic construction, the winter heating problem of village and town buildings in northern cold regions is increasingly prominent. The solar energy, which is free, green and efficient, is fully utilized to realize auxiliary heating in winter, and is a current research hotspot. In addition, the air source heat pump heating technology is gradually becoming one of the main energy-saving, efficient and environment-friendly modes for heating villages and towns. The solar heat utilization technology and the air source heat pump heating are organically combined, and more efficient energy supply can be realized. The solar heat utilization technology has various forms, wherein a solar air heat collector is an important form, can be well adapted to village and town buildings, provides auxiliary heating, improves the comfort of the village and town buildings in winter heat environment, and saves heating energy. Air source heat pump heating is also a very effective heating form for villages and small towns, but when the outdoor temperature is low, the COP of the system is greatly reduced due to the reduction of the ambient temperature. If the solar radiation heat in the daytime can be fully utilized, the hot air collected by the solar air heat collector is used as the low-temperature heat source of the air source heat pump evaporator, and the COP of the air source heat pump can be greatly improved.
Therefore, a technical scheme which can fully utilize solar heat radiation in winter and improve the energy efficiency of an air source heat pump heating system is urgently needed in the prior art.
Disclosure of Invention
Aiming at the defects of the prior art, the invention provides a heat exchange device of a roof-type solar hot air auxiliary type air source heat pump outdoor unit.
In order to achieve the purpose, the invention is realized by the following technical scheme:
the heat exchange device comprises an air source heat pump evaporator, a closed evaporator shell, a fan and a solar heat collecting plate, wherein the air source heat pump evaporator and the fan are arranged in the closed evaporator shell, the solar heat collecting plate is arranged in a heat collecting plate shell, the heat collecting plate shell is fixedly connected with the closed evaporator shell through an evaporator air channel, an evaporator air channel partition plate is arranged in the evaporator air channel, one end of the evaporator air channel partition plate is positioned below the solar heat collecting plate, the other end of the evaporator air channel partition plate is fixedly connected with a coil pipe of the air source heat pump evaporator, and the evaporator air channel is divided into an evaporator air inlet channel and an evaporator air outlet channel by the evaporator air channel partition plate; the air source heat pump evaporator and the fan are both arranged at an outlet of the air inlet duct of the evaporator, and a coil pipe of the air source heat pump evaporator is fixedly connected with the inner wall of a closed evaporator shell, so that a closed space is formed between the air source heat pump evaporator and the closed evaporator shell at an inlet of an air outlet duct of the evaporator; the closed evaporator shell is located a heat pump air supply opening is formed in the side wall of one side of the air source heat pump evaporator, a filter screen is embedded in the heat pump air supply opening, and a turnover cover plate is arranged on the filter screen.
The solar energy heat collection device is characterized in that an electric shaft is arranged on the side wall of the closed evaporator shell, the turnover cover plate can wind the electric shaft to rotate, a PLC control plate, a stepping motor and a power amplifier are further arranged in the closed evaporator shell, a photosensitive sensor is arranged above the solar energy heat collection plate, the PLC control plate is respectively connected with the photosensitive sensor, the stepping motor and the power amplifier through wires, the stepping motor is further connected with the electric shaft and the power amplifier, and the stepping motor and the power amplifier are connected with a power supply of the air source heat pump.
The evaporator air duct partition plate is L-shaped, and the evaporator air inlet duct and the evaporator air outlet duct are also L-shaped.
The shell of the heat collecting plate is made of transparent plastic steel.
The filter screen is a metal filter screen.
Compared with the prior art, the invention has the beneficial effects that: in the daytime with sufficient illumination conditions, the solar heat collecting plate absorbs solar radiation heat energy to heat circulating air sealed in the transparent plastic steel shell, the heated air passes through the air inlet duct of the evaporator under the suction action of the fan, is cooled on the surface of the evaporator, returns to the interior of the transparent plastic steel shell of the solar heat collecting plate through the air outlet duct of the evaporator, is contacted with the solar heat collecting plate and is heated again, and the air is recycled to improve the evaporation temperature of the evaporator; the reversible clapboard is turned upwards at night in winter or in daytime without solar radiation, and when the evaporation temperature of the evaporator is obviously lower than the outdoor temperature, the heat pump system can be ensured to work in a better state, so that the area of a roof is utilized to the maximum extent, the solar heat radiation in winter is effectively utilized, and the energy efficiency of the air source heat pump heating system is improved.
Drawings
Fig. 1 is a front view of the present invention.
Fig. 2 is a side view of the present invention.
Reference numerals: 1-air source heat pump evaporator, 2-closed evaporator shell, 3-fan, 4-evaporator air inlet channel, 5-evaporator air outlet channel, 6-evaporator air channel baffle, 7-solar heat collecting plate, 8-heat collecting plate shell, 9-reversible baffle, 10-filter screen, 11-photosensitive sensor, 12-electric shaft.
Detailed Description
The invention is further illustrated by the following specific embodiments.
As shown in fig. 1-2, the heat exchanger of the outdoor unit of the roof-type solar hot-air auxiliary air source heat pump includes an air source heat pump evaporator 1, a closed evaporator casing 2, a fan 3 and a solar heat collecting plate 7, wherein the air source heat pump evaporator 1 and the fan 3 are both disposed in the closed evaporator casing 2, and the solar heat collecting plate 7 is disposed in a heat collecting plate casing 8, in this embodiment, the heat collecting plate casing 8 is made of transparent plastic steel. The heat collecting plate shell 8 is fixedly connected with the closed type evaporator shell 2 through an evaporator air channel, an evaporator air channel partition plate 6 is arranged in the evaporator air channel, one end of the evaporator air channel partition plate 6 is positioned below the solar heat collecting plate 7, the other end of the evaporator air channel partition plate is fixedly connected with a coil pipe of the air source heat pump evaporator 1, and the evaporator air channel is divided into an evaporator air inlet channel 4 and an evaporator air outlet channel 5 by the evaporator air channel partition plate 6; the evaporator air duct partition plate 6 is L-shaped, and the evaporator air inlet duct 4 and the evaporator air outlet duct 5 are also L-shaped. The air source heat pump evaporator 1 and the fan 3 are both arranged at the outlet of the air inlet duct 4 of the evaporator, and the coil of the air source heat pump evaporator 1 is fixedly connected with the inner wall of the closed evaporator shell 2, so that the air source heat pump evaporator 1 and the closed evaporator shell 2 form a closed space at the inlet of the air outlet duct 5 of the evaporator; the side wall of the closed evaporator shell 2 on one side of the air source heat pump evaporator 1 is provided with a heat pump air supply opening, a filter screen 10 is embedded in the heat pump air supply opening, and in the embodiment, the filter screen 10 is a metal filter screen. The filter screen 10 is provided with a reversible cover plate 9.
The side wall of the closed evaporator shell 2 is provided with an electric shaft 12, the turnable cover plate 9 can rotate around the electric shaft 12, a PLC control panel, a stepping motor and a power amplifier are further arranged in the closed evaporator shell 2, a photosensitive sensor 11 is arranged above the solar heat collecting plate 7, the PLC control panel is respectively connected with the photosensitive sensor 11, the stepping motor and the power amplifier through wires, the stepping motor is further connected with the electric shaft 12 and the power amplifier, and the stepping motor and the power amplifier are connected with a power supply of the air source heat pump.
In other embodiments of the present application, the PLC control board and the stepping motor and the photosensitive sensor 11 may also be wirelessly connected through WiFi or the like.
In winter, in daytime, the solar heat collecting plate absorbs solar radiation heat energy in daytime, heats circulating air sealed on the heat collecting plate shell 8, the heated air is sucked by the fan 3 on the lower side of the air, passes through the evaporator air inlet duct 4, is cooled on the surfaces of the coil pipe and the fins of the air source heat pump evaporator 1, returns into the heat collecting plate shell 8 through the evaporator air outlet duct 5, contacts with the solar heat collecting plate 7, is heated again, and circulates in a reciprocating manner to provide heat from solar energy for the air source heat pump evaporator 1 and improve the evaporation temperature. At night in winter or on daytime without solar radiation, the photosensitive sensor 11 transmits signals to the PLC, the PLC controls the stepping motor to drive the electric shaft 12 to rotate, at the moment, although the evaporation temperature of the air source heat pump evaporator 1 is obviously lower than the outdoor air temperature, the outdoor air can enter the closed evaporator shell 2 and is filtered by the filter screen 10 and enters the air channel, the heat pump system can be ensured to work in a better state, the area of a roof is utilized to the maximum extent, the solar heat radiation in winter is effectively utilized, and the energy efficiency of the air source heat pump heating system is improved.
In the description of the present invention, it is to be understood that the terms "center", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc., indicate orientations or positional relationships based on those shown in the drawings, and are only for convenience of description and simplicity of description, and do not indicate or imply that the devices or elements referred to must have a particular orientation, be constructed in a particular orientation, and be operated, and therefore, should not be construed as limiting the present invention.
In the description of the present invention, it should be noted that, unless otherwise explicitly specified or limited, the terms "mounted," "connected," and "connected" are to be construed broadly, e.g., as meaning either a fixed connection, a removable connection, or an integral connection; the specific meaning of the above terms in the present invention can be understood in specific cases to those skilled in the art.
The above description is only for the preferred embodiment of the present invention, but the present invention is not limited to the above specific embodiments, and those skilled in the art can make various changes and modifications without departing from the inventive concept, which falls into the protection scope of the present invention.
Claims (5)
1. A heat exchange device of a roof-type solar hot air auxiliary type air source heat pump outdoor unit comprises an air source heat pump evaporator (1), a closed evaporator shell (2), a fan (3) and a solar heat collecting plate (7), wherein the air source heat pump evaporator (1) and the fan (3) are arranged in the closed evaporator shell (2), and the heat exchange device is characterized in that the solar heat collecting plate (7) is arranged in a heat collecting plate shell (8), the heat collecting plate shell (8) is fixedly connected with the closed evaporator shell (2) through an evaporator air channel, an evaporator air channel partition plate (6) is arranged in the evaporator air channel, one end of the evaporator air channel partition plate (6) is located below the solar heat collecting plate (7), the other end of the evaporator air channel partition plate is fixedly connected with a coil of the air source heat pump evaporator (1), and the evaporator air channel partition plate (6) divides the evaporator into an evaporator air inlet channel (4) and an evaporator air channel (4) An air outlet duct (5); the air source heat pump evaporator (1) and the fan (3) are both arranged at an outlet of the evaporator air inlet channel (4), and a coil of the air source heat pump evaporator (1) is fixedly connected with the inner wall of a closed evaporator shell (2), so that a closed space is formed between the air source heat pump evaporator (1) and the closed evaporator shell (2) at an inlet of an evaporator air outlet channel (5); the closed evaporator shell (2) is located a heat pump air supply opening is formed in the side wall of one side of the air source heat pump evaporator (1), a filter screen (10) is embedded in the heat pump air supply opening, and a turnover cover plate (9) is arranged on the filter screen (10).
2. The outdoor unit heat exchange device of the roof-type solar hot air auxiliary air source heat pump according to claim 1, wherein an electric shaft (12) is arranged on a side wall of the closed evaporator casing (2), the reversible cover plate (9) can rotate around the electric shaft (12), a PLC control board, a stepping motor and a power amplifier are further arranged in the closed evaporator casing (2), a photosensitive sensor (11) is arranged above the solar heat collection plate (7), the PLC control board is respectively connected with the photosensitive sensor (11), the stepping motor and the power amplifier through conducting wires, the stepping motor is further connected with the electric shaft (12) and the power amplifier, and the stepping motor and the power amplifier are connected with a power supply of the air source heat pump.
3. The outdoor unit heat exchange device of the roof-type solar hot air auxiliary type air source heat pump according to claim 1, wherein the evaporator air duct partition plate (6) is L-shaped, and the evaporator air inlet duct (4) and the evaporator air outlet duct (5) are also L-shaped.
4. The outdoor unit heat exchange device of the roof-type solar hot air auxiliary type air source heat pump according to claim 1, wherein the heat collecting plate casing (8) is made of transparent plastic steel.
5. The outdoor unit heat exchange device of the roof-type solar hot air auxiliary type air source heat pump of claim 1, wherein the filter screen (10) is a metal filter screen.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010859697.3A CN111981564A (en) | 2020-08-24 | 2020-08-24 | Heat exchange device of roof-type solar hot air auxiliary type air source heat pump outdoor unit |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010859697.3A CN111981564A (en) | 2020-08-24 | 2020-08-24 | Heat exchange device of roof-type solar hot air auxiliary type air source heat pump outdoor unit |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN111981564A true CN111981564A (en) | 2020-11-24 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202010859697.3A Withdrawn CN111981564A (en) | 2020-08-24 | 2020-08-24 | Heat exchange device of roof-type solar hot air auxiliary type air source heat pump outdoor unit |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN111981564A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115076786A (en) * | 2022-06-07 | 2022-09-20 | 南京大学 | Winter and summer dual-purpose day and night circulating roof air conditioner and temperature control method |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN201246923Y (en) * | 2008-07-29 | 2009-05-27 | 东南大学 | Heat pump system evaporator and solar photovoltaic heat collectors composite heat source apparatus |
| CN201973883U (en) * | 2010-12-17 | 2011-09-14 | 新奥科技发展有限公司 | Air energy water heater system combined with air-cooling type solar system |
| CN202040921U (en) * | 2011-04-22 | 2011-11-16 | 陕西威铭节能科技有限公司 | Horizontal heat pump water heating system with air replacement function |
| CN203068659U (en) * | 2013-01-14 | 2013-07-17 | 广东日出东方空气能有限公司 | Solar heat collection device and air energy heat pump device combined type hot-water system |
| KR20150033791A (en) * | 2013-09-24 | 2015-04-02 | 이일성 | Combined air and water solar water heating system |
-
2020
- 2020-08-24 CN CN202010859697.3A patent/CN111981564A/en not_active Withdrawn
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN201246923Y (en) * | 2008-07-29 | 2009-05-27 | 东南大学 | Heat pump system evaporator and solar photovoltaic heat collectors composite heat source apparatus |
| CN201973883U (en) * | 2010-12-17 | 2011-09-14 | 新奥科技发展有限公司 | Air energy water heater system combined with air-cooling type solar system |
| CN202040921U (en) * | 2011-04-22 | 2011-11-16 | 陕西威铭节能科技有限公司 | Horizontal heat pump water heating system with air replacement function |
| CN203068659U (en) * | 2013-01-14 | 2013-07-17 | 广东日出东方空气能有限公司 | Solar heat collection device and air energy heat pump device combined type hot-water system |
| KR20150033791A (en) * | 2013-09-24 | 2015-04-02 | 이일성 | Combined air and water solar water heating system |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115076786A (en) * | 2022-06-07 | 2022-09-20 | 南京大学 | Winter and summer dual-purpose day and night circulating roof air conditioner and temperature control method |
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Application publication date: 20201124 |
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| WW01 | Invention patent application withdrawn after publication |