CN102589270A - Novel criticality striding carbon dioxide (CO2) heat pump system with solar energy photovoltaic power generation serving as auxiliary power - Google Patents

Novel criticality striding carbon dioxide (CO2) heat pump system with solar energy photovoltaic power generation serving as auxiliary power Download PDF

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Publication number
CN102589270A
CN102589270A CN2012100313882A CN201210031388A CN102589270A CN 102589270 A CN102589270 A CN 102589270A CN 2012100313882 A CN2012100313882 A CN 2012100313882A CN 201210031388 A CN201210031388 A CN 201210031388A CN 102589270 A CN102589270 A CN 102589270A
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CN
China
Prior art keywords
heat pump
energy
critical
solar
auxiliary power
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Pending
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CN2012100313882A
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Chinese (zh)
Inventor
刘学武
陈国华
陈申
邓胜男
关希文
施志聪
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Guangzhou HKUST Fok Ying Tung Research Institute
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Guangzhou HKUST Fok Ying Tung Research Institute
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Priority to CN2012100313882A priority Critical patent/CN102589270A/en
Publication of CN102589270A publication Critical patent/CN102589270A/en
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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
    • 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
    • Y02B70/00—Technologies for an efficient end-user side electric power management and consumption
    • Y02B70/30—Systems integrating technologies related to power network operation and communication or information technologies for improving the carbon footprint of the management of residential or tertiary loads, i.e. smart grids as climate change mitigation technology in the buildings sector, including also the last stages of power distribution and the control, monitoring or operating management systems at local level
    • 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
    • Y04—INFORMATION OR COMMUNICATION TECHNOLOGIES HAVING AN IMPACT ON OTHER TECHNOLOGY AREAS
    • Y04S—SYSTEMS INTEGRATING TECHNOLOGIES RELATED TO POWER NETWORK OPERATION, COMMUNICATION OR INFORMATION TECHNOLOGIES FOR IMPROVING THE ELECTRICAL POWER GENERATION, TRANSMISSION, DISTRIBUTION, MANAGEMENT OR USAGE, i.e. SMART GRIDS
    • Y04S20/00—Management or operation of end-user stationary applications or the last stages of power distribution; Controlling, monitoring or operating thereof
    • Y04S20/20—End-user application control systems

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  • Drying Of Solid Materials (AREA)

Abstract

The invention discloses a novel criticality striding carbon dioxide (CO2) heat pump system with solar energy photovoltaic power generation serving as auxiliary power, which is composed of a solar panel assembly, a lithium ion battery energy storage assembly and a criticality striding CO2 heat pump device. The heat pump system is mainly characterized in that photovoltaic power generation is conducted through the solar panel assembly, generated energy is stored in a high-performance lithium-ion secondary battery pack and provides power for a CO2 compressor, and energy conservation and high-efficiency operation in a drying process is achieved. CO2 serves as a cycle fluid, by means of the criticality striding CO2 circulating backheating and dehumidification technology, a temperature varying process of a gas cooler is effectively used, and temperature matching between the CO2 and a drying medium is achieved. The heat pump drying system has the advantages of substantially reducing energy consumption and exhaust emission of a traditional process, improving energy using ratio, simultaneously being capable of improving quality of dried products, and achieving greening of the drying process.

Description

A kind of solar energy photovoltaic generating is the critical CO that strides of auxiliary power 2Heat pump
Technical field
The present invention relates to a kind of novel critical CO that strides 2Heat pump drying device, the photovoltaic generation accumulate that utilizes that exactly relates to provides the drying equipment and the method for using of auxiliary power for heat pump compressor.
Background technology
Drying is widely used a kind of processing technology in the industrial and agricultural production.In developed country, energy consumption for drying accounts for 7 ~ 15% of national industrial energy consumption.In China, the energy consumption of general dry run accounts for 10% of whole machining process process total energy consumption.Therefore, since oil crisis at the beginning of the 70's of 20th century, extensive and deep research has all been launched to the power-saving technology of drying processing in countries in the world, and heat pump drying is exactly a kind of novel energy-conserving dry technology that under this background, produces.
Because its more conventional pneumatic conveying drying of heat pump drying technology is having a clear superiority in aspect energy resource consumption and the drying cost, becomes the focus of research gradually.And traditional heat pump drying technology adopts the steam compression heat pump system; Though have advantages such as energy-conservation, efficient; But because its working medium generally adopts the freon product; Environment is had destruction, and whole system to adopt high-grade electric energy be drive energy, so in the industry constantly research to seek more environmental protection and energy-conservation heat pump drying scheme.
The operation of heat pump be unable to do without refrigeration working medium; But the artificial synthetic refrigeration working medium of the chloro-fluoro-carbon kind (CFCs) of extensive use at present has destruction and produces greenhouse effects ozone layer; Eliminating CFCs in the world gradually, seeking refrigeration working medium efficient, environmental protection has become the common problem of paying close attention to of current international community.CO 2As natural refrigerant, environmental sound has good security and chemical stability.Therefore, research is with natural refrigerant CO 2CO for refrigeration working medium 2Heat pump drying technology meets energy-conservation and megatrend environmental protection fully, has vast potential for future development.
Simultaneously, we should see that also the deterioration day by day of the deficient day by day and environment of traditional energy has greatly promoted the development of new forms of energy and energy-conserving and environment-protective technology.Solar energy is the most general natural resources, and independent solar energy system owing to receive the constraint of time and region, is difficult to the round-the-clock solar energy resources that utilizes, in requisition for using big capacity and long-life energy-storage battery to realize the abundant storage and the stable output of electric power.The energy-storage battery that is used at present solar power system both at home and abroad mainly is a lead-acid battery, uses cadmium nickel battery on a small quantity.Though lead-acid accumulator is cheap, specific energy is low, weight is big, the life-span is short, heavy metal pollution is serious, and needs periodic maintenance to change.And lithium ion battery has advantages such as environmental protection, safety, specific energy height, serviceability temperature wide ranges, life-span be long, non-maintaining.Therefore, has more long-range meaning with lithium ion battery as energy-storage battery.
Summary of the invention
The present invention utilizes present stage to stride critical CO 2The achievement in research of refrigeration system, the advanced technology in conjunction with solar cell photovoltaic generating, lithium rechargeable battery store electrical energy has proposed a kind of novel solar heat pump drying system---and a kind of solar energy photovoltaic generating is the critical CO that strides of auxiliary power 2Heat pump.Promptly utilize and be stored in the electric energy that the solar cell in the lithium battery sends and stride critical CO as driving 2The power of heat pump compressor if the electric energy that stores is abundant, can be compressor whole power is provided; If run into overcast and rainy; The electric weight of solar energy power generating is kept whole power of compressor inadequately, and then remaining electric energy is provided by electrical network, and this moment, solar electrical energy generation was as auxiliary power; No matter adopt which kind of mode to work, all can greatly reduce consumption electric power.
The present invention is the heat pump drying system of major impetus with the solar energy power generating, has gathered photovoltaic generation, lithium ion secondary accumulate and has striden critical CO 2The strong point of heat pump drying system has taken into full account the characteristics of three parts, and the system that is formed has outstanding energy-saving and environmental protection, advantage efficiently, is that present any heat pump drying system is incomparable.Develop such heat pump,, have important theory and be worth and realistic meaning for saving the energy, shorten drying time, improve drying quality, increasing product competitiveness.
Description of drawings
The present invention is provided by following embodiment and accompanying drawing thereof.
Fig. 1 generates electricity according to concrete a kind of solar energy photovoltaic that the present invention proposes to be the critical CO that strides of auxiliary power 2The heat pump structural representation.
Among Fig. 1,1 is mounted in the solar cell photovoltaic assembly of roof equal-height position, and the 2nd, by the power storage system of lithium ion secondary batteries one-tenth, the 3rd, stride critical CO 2The CO of heat pump 2Compressor, 4 stride critical CO 2The cooler of heat pump, 5 stride critical CO 2The evaporimeter of heat pump, the 6th, stride critical CO 2The choke valve of heat pump, 7 blower fans, 8 hothouses.
The specific embodiment
A kind of solar energy photovoltaic generating provided by the invention is the critical CO that strides of auxiliary power 2Heat pump, capital equipment has: can be and stride critical CO 2The power storage system (2) that heat pump provides the solar cell photovoltaic assembly (1) of major impetus, become by lithium ion secondary batteries, stride critical CO 2The CO of heat pump 2Compressor (3), stride critical CO 2The cooler of heat pump (4), stride critical CO 2The evaporimeter of heat pump (5), stride critical CO 2The choke valve of heat pump (6), blower fan (7), hothouse (8).
When the present invention is achieved in that work, the electricity that pinnacled solar photovoltaic assembly (1) sends is installed, is transferred to through circuit in the power storage system (2) that becomes by lithium ion secondary batteries, be stored in electric energy in the power storage system and can be and stride critical CO 2The CO of heat pump 2Compressor (3) provides power.If weather is more sunny, photovoltaic efficiency is high, and it is abundant to be stored in the power storage system (2) electric energy, just can be and strides critical CO 2The CO of heat pump 2Compressor (3) provides whole power; If run into overcast and rainyly, it is also few to be stored in the power storage system (2) electric energy, and the electric weight that solar photovoltaic assembly (1) sends is not enough for striding critical CO 2The CO of heat pump 2Compressor (3) provides whole power, and remaining electric energy is provided by electrical network, and this moment, solar photovoltaic assembly (1) electricity was as the auxiliary power of compressor (3).CO 2Cycle fluid is being striden critical CO 2In circulate.CO 2Gas condensation heat release in gas condenser (4) after compressor (3) compression becomes the gas-liquid mixed attitude through expansion valve (6) throttling, and temperature reduces, then heat absorption evaporation, then CO in evaporimeter (5) 2Gas is inhaled into compressor (3), accomplishes one time kind of refrigeration cycle.Air circulation system is made up of blower fan (7) and hothouse (8), also comprises gas cooler (4) and evaporimeter (5) certainly.The high humidity Hot air quilt condensation that gets into evaporimeter (5) is dried; Become low humid air entering gas cooler (4) and be heated to form heated dry air; Be blown into hothouse (8) by blower fan (7), taking away becomes damp-heat air behind the moisture of the material that is dried and gets in the evaporimeter (5), accomplishes air circulation.

Claims (6)

1. a solar energy photovoltaic generates electricity and is the critical CO that strides of auxiliary power 2Heat pump, this system is by solar cell panel assembly, lithium ion battery assembly and stride critical CO 2Heat pump assembly is formed, and its main feature is: during work, the electricity that pinnacled solar photovoltaic assembly sends is installed is stored in the lithium rechargeable battery in the power storage system, if the electric energy that stores is abundant, just can be compressor whole power are provided; Overcast and rainy as if running into, the electric weight of solar energy power generating is kept whole power of compressor inadequately, and then remaining electric energy is provided by electrical network, and solar electrical energy generation simultaneously, utilizes CO as auxiliary power at this moment 2Be cycle fluid, through striding critical CO 2The circulation heat recovery dehumidifying technology; Effectively utilize the alternating temperature process of gas cooler; Temperature coupling between realization and the drying medium; Heat pump drying provided by the invention system has intensified drying process, significantly reduces the advantage of traditional handicraft energy consumption and toxic emission, raising energy utilization rate, can realize energy-conservation, the efficient operation of dry run.
2. a kind of solar energy photovoltaic generating according to claim 1 is the critical CO that strides of auxiliary power 2Heat pump is characterized in that, described system includes the solar photovoltaic cell panel assembly.
3. a kind of solar energy photovoltaic generating according to claim 1 is the critical CO that strides of auxiliary power 2Heat pump is characterized in that, described system includes the high performance lithium ion secondary battery assembly.
4. a kind of solar energy photovoltaic generating according to claim 1 is the critical CO that strides of auxiliary power 2Heat pump is characterized in that, the electrical power storage of described photovoltaic generation is in the high performance lithium ion secondary battery group.
5. a kind of solar energy photovoltaic generating according to claim 1 is the critical CO that strides of auxiliary power 2Heat pump is characterized in that, described compressor major impetus is provided by the high performance lithium ion secondary battery group.
6. a kind of solar energy photovoltaic generating according to claim 1 is the critical CO that strides of auxiliary power 2Heat pump is characterized in that, includes in the described system to stride critical CO 2Heat pump assembly.
CN2012100313882A 2012-02-13 2012-02-13 Novel criticality striding carbon dioxide (CO2) heat pump system with solar energy photovoltaic power generation serving as auxiliary power Pending CN102589270A (en)

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Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN103398562A (en) * 2013-08-01 2013-11-20 李万红 Solar vertical circulation dying room
CN104748515A (en) * 2015-04-21 2015-07-01 石河子市一正阳光新能源科技开发有限公司 Cotton seed depilation solar drying workshop and device integrated machine
CN106595286A (en) * 2016-11-28 2017-04-26 广西超星太阳能科技有限公司 Solar drying system
CN114812141A (en) * 2022-03-30 2022-07-29 山东众星数控科技有限公司 HJT photovoltaic cell constant temperature curing oven

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JP2005134104A (en) * 2003-10-09 2005-05-26 Matsushita Electric Ind Co Ltd Solar system and operation method of solar system
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CN1651828A (en) * 2005-01-31 2005-08-10 中山大学 Solar energy photovoltaic heat pump air-conditioning system
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CN201363900Y (en) * 2009-03-11 2009-12-16 曾智勇 Solar air source heat pump hot water device

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Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN103398562A (en) * 2013-08-01 2013-11-20 李万红 Solar vertical circulation dying room
CN103398562B (en) * 2013-08-01 2015-06-10 宁波市科技园区绿牌软包装技术贸易有限公司 Solar vertical circulation dying room
CN104748515A (en) * 2015-04-21 2015-07-01 石河子市一正阳光新能源科技开发有限公司 Cotton seed depilation solar drying workshop and device integrated machine
CN106595286A (en) * 2016-11-28 2017-04-26 广西超星太阳能科技有限公司 Solar drying system
CN114812141A (en) * 2022-03-30 2022-07-29 山东众星数控科技有限公司 HJT photovoltaic cell constant temperature curing oven
CN114812141B (en) * 2022-03-30 2023-09-08 山东众星数控科技有限公司 HJT photovoltaic cell constant temperature curing oven

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Application publication date: 20120718