175 results about "Solar air heat" patented technology

A low cost mass-produced solar module that extracts both electricity and heat from the sun. One or more reflectors held by a frame reflect the sun's heat into an absorber. Each reflector rotates about its axle to keep its reflected solar energy focused on the absorber. In one embodiment, solar heat is focused to heat fluid that flows to thermodynamic engines that convert the heat to electricity. Engine waste heat is also captured for use as building heat, home hot water or industrial process heat. In another embodiment, solar heat is focused onto photovoltaic devices that directly convert light into electricity. The fluid that cools the photovoltaic devices can be used for building heat, home hot water or industrial process heat. The frame shields the reflectors from ambient wind loads, supports reflector axles accurately and simplifies installation on roofs or walls of buildings. The frame, reflectors, absorber and ancillary components comprise a module that can be shipped, installed and operated by low skill. Most components are fabricated using “double wall” construction formed by two face sheets held apart by a core that reduces their weight and their cost. Reflector surfaces are curved to focus the sun and to provide additional strength. Module design includes methods to install, maintain and verify proper functioning of the modules. In addition, methods show how electrical energy can be derived from the module, both circulating fluids that power thermodynamic engines and by photovoltaic cells that are cooled by the circulating fluid. Sensors contained in the modules detect aberrant behavior and optimize reflector trajectories to extract the most solar heat available. Communication between modules allows optimization of an array of modules.

The present invention relates to a solar-air heat pump water heater, including a solar-air evaporator, a hot-water tank containing submerged condenser coil, a small heat pump compressor and related refrigerating fittings of thermodynamic expansion valve, gas-liquid separator, drying filter and liquid storage device. The solar-air evaporator is formed from the components of solar heat-collecting plate, air conditioning fan, air vent and shell body. The solar heat collector and air heat-exchanger are combined together by adopting compact structure form. The automatic control device of the water heater includes a temperature difference controller for controlling starting and stopping of the fan and a water tank constant temperature device for controlling starting and stopping of compressor.

The invention relates to a building heat supplying and heating system based on a solar air heat collector, which belongs to the technical field of solar applications. The system comprises a solar heat collecting system, a heat energy transmitting mechanism, a heat storing system and an automatic control system, wherein the solar heat collecting system is respectively connected with the heat energy transmitting mechanism to transmit the heated air; the heat energy transmitting mechanism is connected with the heat storing system to transmit the heat energy; and the automatic control system is respectively connected with the heat collecting system, the heat energy transmitting system and the heat storing system to output a control instruction. The invention effectively solves the problems existing in the original system, and simultaneously decreases the system investment and running cost of the solar heating.

The invention relates to a solar hot air system enhanced in-situ bio-ventilation soil restoration system. The system comprises a solar air heat collection system, a ventilation system, a contaminant vacuum extraction system and a gas purification system. The ventilation system is a ventilation pipeline, and the solar air heat collection system is connected with the ventilation pipeline and used for heating air in the ventilation pipeline. The contaminant vacuum extraction system comprises a gas phase extraction pipe and a vacuum pump, the gas phase extraction pipe is directly buried in the heated contaminated soil area, and the upper portion of the gas phase extraction pipe is connected with the gas purification device. The solar hot air system enhanced in-situ bio-ventilation soil restoration system further comprises a nutrient solution injection system, and a nutrient solution is evenly pumped into organic matter contaminated soil through the nutrient solution injection system. According to the system, solar energy serves as a heat source, heated air is injected into a soil embedded radiating pipe, soil temperature is adjusted, soil microbial flora and the nutrition environment are optimized, degradation of microorganisms for organic matter in the contaminated soil is promoted, and then following vacuum extraction is facilitated. By means of the system, energy is saved, the emission of greenhouse gas is reduced, and secondary pollution generated by combustion of fossil fuel is avoided.

This invention provides novel devices and methods for the heating of air with solar radiant energy. The devices of the present invention feature a housing partitioned into essentially isolated sections wherein the sections are in fluid communication with each other through a plurality of channels located within the partitions. The two unique features of the invention, essentially isolated sections and partitions comprising a plurality of channels, increase the temperature achieved by the solar heater by 1) creating multiple, sequential sections that function independently of each other providing a higher starting temperature in each section and, therefore, a higher final temperature, 2) providing second means of heating the air within the channels located within the partitions and, 3) by virtually eliminating the mixing of incoming cold air with the heated air of the solar air heater.

The invention relates to an agricultural greenhouse utilizing solar energy, in particular to a greenhouse heating system integrating active solar air heat collection and soil heat storage. The system consists of a solar air heat collector, a fan, an underground buried pipe and soil, wherein the solar air heat collector is fixed outside of the greenhouse and is communicated with the underground buried pipe; and the underground buried pipe is arranged in the soil under the greenhouse, and provided with two ports extending out of the ground, and one end of the underground buried pipe is connected with the fan while the other end is freely opened and closed. Compared with the prior art, the active solar greenhouse heat collecting and heat storing system has the advantages of environmental protection, energy conservation, high heat efficiency and so on.

The invention discloses an active-passive cooperative heat storage wall heating system of a solar greenhouse, and belongs to the technical field of agricultural facilities. The active-passive cooperative heat storage wall heating system mainly comprises a phase-change heat storage wall, a concentration-type solar air heat collector system, an active heat storage heating system body and an equipment control unit. The phase-change heat storage wall is composed of a cement mortar layer, a phase-change heat storage layer, a bearing building block layer and a thermal insulation layer from the indoor side to the outdoor side, wherein the phase-change heat storage layer is formed by pouring phase-change materials packaged through steel drums, heat storage coil pipes, gravel and cement. The solar air heat collector system is formed by connecting multiple groups of condensation-type solar air heat collectors in series, and a sunshade device used in summer is arranged above the heat collectors. The active heat storage heating system body is composed of a heat collector, thermal insulation pipes, a heat storage coil pipe, a frequency conversion fan, air openings and air valves. The equipment control unit is composed of a controller, a temperature sensor and electric adjusting air valves. According to the active-passive cooperative heat storage wall heating system, active and passive heat collection, heat storage and heat supply of the wall of the solar greenhouse are combined, therefore, the heat storage and thermal insulation performance of the wall of the solar greenhouse can be obviously enhanced, the solar energy utilization rate of the greenhouse can be obviously increased, and the adjusting capacity of the heat storage wall of the solar greenhouse to the heat environment in the greenhouse is improved.

The invention relates to a solar dryer. An intelligent effective and multifunctional solar air heat collection dryer is characterized in that the dryer comprises a fan, an airflow pipeline, a solar air heat collector and a hanging rack, the solar air heat collector is formed by solar cell panels and an air heat collector, the solar cell panels are arranged on the two sides of the air heat collector respectively, the output ends of the solar cell panels are connected with the power input end of a storage battery of an electric energy control system, the output end of a pressure control switch of the electric energy control system is respectively connected with the fan and an auxiliary heating device, an air outlet of the fan is communicated with an air inlet of the air heat collector through the airflow pipeline, an air outlet of the air heat collector is communicated with a warm air inlet of the hanging rack, and the hanging rack is provided with a warm air outlet. The dryer has the advantages of being low in cost and good in energy-saving effect.

The invention discloses a flat-plate micro heat pipe array type solar air heat collection and storage integrated device and relates to the technical field of heat exchange technologies and solar heating. A flat-plate micro heat pipe array assembly adopts a flat-plate type structure formed by multiple sealed micro heat pipes, and the micro heat pipes are filled with heat exchange media; the outside part of the flat-plate micro heat pipe array assembly is divided into a heat collection section, a heat storage section and a heat taking section respectively; the heat taking section is inserted into a heat taking air channel; the heat storage section of the flat-plate micro heat pipe array assembly is located in a heat accumulator box; a phase-change heat storage material is further sealed in the heat accumulator box; a black heat absorbing film is attached to the upper surface of the heat collection section and covered with a glass cover plate, a heat insulation material is attached to the lower surface of the heat collection section, a heat collector back plate is arranged below the heat insulation material, and a heat collector border frame frames side edges to prevent the side edges from being scattered. By means of the device, space can be saved, the system is simplified, the use time is prolonged, heat efficiency is improved, and heat loss is reduced.

The invention belongs to the field of renewable energy buildings and relates to a phase change heat storage lightweight wall-based high-performance solar air heating system, comprising a solar air heat collector, a phase change heat storage lightweight wall and a floor layer. An inner surface layer of the phase change heat storage lightweight wall is made of cement combined and set phase change material plates; a middle layer of the phase change heat storage lightweight wall is composed of a wall air passages; the outer surface layer is made of lightweight wall material plates. A bottom layer of the floor layer is an insulation material layer. The space around and above the air passages of the middle layer is filled with cement combined and set phase change mortar and is tamped and leveled; the upper layer of the floor layer is made of a floor facing layer. The air passages of the phase change heat storage lightweight wall are in series connection with the corresponding air passages, forming a unit; air channels of the unit are connected in parallel through pipe; the unit is serially connected in order with a reflow pipe, a reflow valve, a ventilator, the solar air heat collector, an air supply pipe and an air supply valve. The phase change heat storage lightweight wall-based high-performance solar air heating system is capable of keeping indoor temperature at 9 to 12 DEG C in remote or plateau cold areas.

A solar thermosyphon ventilation and heat storage heating system comprises a house body which comprises a foundation, a bounding wall, a door, a window and a solar thermosyphon ventilation and heat storage heating device. The solar thermosyphon ventilation and heat storage heating device comprises a solar roof, an underground heat storage body, an air inlet channel, an air outlet channel, a fan, a valve and a single-direction valve. The solar roof comprises a sunshade net, a light-transmitting layer, a photothermal conversion layer, a heat preservation layer, a ventilation opening, a valve or a plug and a roof support. The solar roof is a roof as well as a solar air heat collector. Heat storage materials in the underground heat storage body are setting heat storage materials, a large number of gaps are reserved between the setting heat storage materials, and the solar roof and the underground heat storage body are communicated through the air inlet channel and the air outlet channel.

The invention discloses a solar air heat absorber measurement and control system and a performance and temperature prediction and protection method. The system comprises a frequency modulation motor, a thermocouple, a pressure sensor, a direct solar radiation and wind speed meter, an air temperature sensor, an analog input module, an analog output module, a remote interface module, a remote communication interface module, an industrial personal computer and a warner. The efficiency is obtained by measuring the input radiation and effective absorption of the sun and dividing the effective absorbed heat by the total input radiation energy; the pressure sensor is used to measure resistance; volumetric heat transfer coefficient is obtained by measuring the solid matrix temperature of the front and back surfaces of the heat absorber and the air temperatures before or after air passes through the heat absorber and performing iterative computation through the computational heat transfer method. The heat absorber is protected by setting limit values of the surface temperature and temperature gradient of the heat absorber and the temperature gradient in the air stream direction.

The invention relates to a solar heat-absorbing pipe which comprises a glass outer pipe (2) and a metallic inner pipe (1) provided with a heat-resistant selective absorption coating, wherein one end of a corrugated pipe (4) with an expansion compensation function is welded with the metallic inner pipe (1) through a connecting piece (3), and the other end of the corrugated pipe (4) is connected with the glass outer pipe (2); a vacuum annular enclosure space (7) is formed between the glass outer pipe (2) and the metallic inner pipe (1); the corrugated pipe (4) is coaxially arranged together with the glass outer pipe (2) and the metallic inner pipe (1), one end of the corrugated pipe (4) is a straight drum section the port of which is a thin-wall knife edge, the outermost edge thickness of the straight drum section is less than 0.05mm, the conical degree of the knife edge is less than 3 degrees, or the thin-wall knife edge (6) is provided with a secondary skiving section (8) the conical degree of which less than 3 degrees, and the thin-wall knife edge is inserted into the pipe wall of the port of the glass outer pipe (2) so as to be sealed with the glass outer pipe (2) in a fusing manner.

The invention relates to a solar wall heat supplying and radiating system. The solar wall heat supply and radiating system comprises a solar wall frame, insulation boards, transparent curtain wall boards, solar air heat collection boards, temperature sensors, deflectors, air inlet holes, exhaust outlets, axial fans, temperature control fan speed controllers, air supply ducts, an energy storage wall and a solar chimney, wherein the solar wall frame is installed on an outer wall on the sunny slope of a building; the insulation boards are embedded in the inner side of the frame, and an inner wall and an outer wall of the frame; the solar air heat collection boards with the temperature sensors are installed between the transparent curtain wall boards and the insulation boards on the outer wall to form an outer cavity and an inner cavity of a solar wall; the movable deflectors are arranged in the middle of each layer of the inner cavity and the floor portion of the inner cavity and the outer cavity; the axial fans are installed on the exhaust outlets and are controlled by the temperature control fan speed controllers; the air supply ducts are connected with the axial fans and the energy storage wall; the top end of the solar wall is connected with a section of the solar chimney. The solar wall heat supplying and radiating system can supply heat for the building in winter and can ventilate and radiate the building in summer, so that the application space is wide.

The invention discloses a solar seawater desalination device. The device comprises an oscillatory flow heat pipe air heat collector, an evaporator and a condenser, wherein the oscillatory flow heat pipe air heat collector is provided with a steam outlet and a steam inlet; the evaporator is provided with an air outlet and a seawater outlet; a gas distributor is arranged at the bottom of the evaporator; the condenser is provided with a wet air inlet, a steam outlet and a freshwater discharge outlet; a condensing coil is arranged in the condenser; one end of the condensing coil is connected with a seawater pump and the other end thereof is led into the evaporator; the steam outlet of the oscillatory flow heat pipe air heat collector is connected with the gas distributor; the air outlet of the evaporator is connected with the wet air inlet of the condenser; and the steam outlet of the condenser is connected with the steam inlet of the solar air heat collector. The device has the following advantages: the device reduces corrosion to the heat collector and improves the heat collection efficiency of the heat collector; the seawater temperature is low during operation, so the whole device does not have obvious scales; and the device has simple structure and small volume, can operate under normal pressure and has broad market prospects.

The invention discloses a semi-dry process air humidifying and dehumidifying type seawater desalinating system and method utilizing solar energy, and belongs to the technical field of seawater desalination. The system comprises a solar air heat collector, a jetting bed evaporator, a bag dust remover, a horizontal-tube falling-film condenser and a steam-water separator, wherein the output end of the solar air heat collector is connected with a bottom spray nozzle of the jetting bed evaporator; a seawater input source is connected with a top seawater inlet guide pipe of the jetting bed evaporator; the output end of the jetting bed evaporator is sequentially connected with the bag dust remover, the horizontal-tube falling-film condenser and the steam-water separator; and the output end of the steam-water separator is used for outputting freshwater. The system runs under normal pressure without need of a vacuum pump; the jetting bed evaporator is used in the system to enhance air moistureabsorption process and improve the seawater evaporation efficiency; the horizontal-tube falling-film condenser is used to improve the heat exchange efficiency of the condenser; and a semi-dry processevaporation flow is adopted, thus a concentrated saline storage or circulation device is not needed and salt particles can be recovered by the bag dust remover.

The invention relates to a solar air heat collector used for a heat generation device, comprising a frame which is internally provided with a heat collecting chip plate. The upper side of the frame is provided with a transparent cover plate and the lower side thereof is provided with a back plate; the solar air heat collector is characterized in that the upper side and the lower side of the heat collecting chip plate are provided with airflow passages which are communicated with each other; two ends of the airflow passages are respectively communicated with an air inlet and an air outlet; a first space is arranged between the heat collecting chip and the back plate; a second space is arranged between the heat collecting core plate and the transparent cover plate; the first space and the second space are internally provided with separation strips and steering arc-shaped separation strips which are arranged at the external end of the separation strip; one side corresponding to the steering arc-shaped separation strip is provided with a baffle which is clamped between the first space and the second space; furthermore, corresponding end sides of the baffle and the heat collecting chip plate are provided with gaps; the separation strips, the steering arc-shaped separation strips and the baffle in the first space form a loop-typed airflow passage; and the separation strips, the steering arc-shaped separation strips and the baffle in the second space form another loop-typed airflow passage. The solar air heat collector has the advantages of low cost, high efficiency and strong practicability.

The invention discloses a flat-plate type solar combined heat-electricity supply device with both electricity generating and heating functions, wherein a solar photovoltaic battery and a solar air heat-collecting device are combined without consuming any conventional energy sources to simultaneously carry out electricity supply and heating for a building. The device has small occupied space and regular and attractive appearance and is easily combined with the building. When the device works, sunlight is irradiated on the surface of the solar photovoltaic battery (which can be a film battery using glass as a substrate) with certain light transmittance, one part of solar energy is converted into electrical energy and heat energy through the solar photovoltaic battery, and the other part penetrates through the solar photovoltaic battery, is irradiated on a heat-collecting plate and is converted into the heat energy through the heat-collecting plate. Air is together heated through the heat generated by the solar photovoltaic battery and the heat-collecting plate, a fan works by utilizing the electrical energy generated by the solar photovoltaic battery, and the hot air is pumped into a room to heat the room. In the process, the utility model optimizes an air flow passage by utilizing a voltage-sharing cavity, eliminates the local temperature rise caused by non-uniform heat exchange, not only improves the heat efficiency of the device, but also increases the heat radiating speed of the solar photovoltaic battery and improves the photoelectric conversion efficiency of the solar photovoltaic battery.

The invention relates to an oil recovering device, in particular to a water surface oil recovering device. The oil recovering device solves the problems that the traditional mechanical device has low recovery rate for a thin oil layer when recovering water surface floating oil, and emulsified oil and high-viscosity oil are difficult to scrape off during recovery. An oil recovering box is fixedly arranged on the side wall of a support bracket; an output shaft of a motor is in drive connection with a deoiling wheel shaft; an oil sucking wheel is installed on an oil sucking wheel shaft; the oil sucking wheel and a deoiling wheel are in drive connection by a deoiling belt; and a wind outlet of a solar air heat collector is communicated with a wind inlet of a transmitting flow guide heat insulating shield. The transmitting flow guide heat insulating shield is positioned above the deoiling wheel and communicated with a solar chimney. The second scheme is characterized in that the water surface oil recovering device is heated by an air heater; a flow guide blade is arranged in the transmitting flow guide heat insulating shield; and an angle between the flow guide blade and the wind outlet of the air heater is an acute angle. The third scheme is characterized in that the water surface oil recovering device is heated by the air heater, and a transmitting wind guide pipe is communicatedwith a plurality of branch pipes. The fourth scheme is characterized in that an electric heating component is installed in the deoiling wheel for heating. The water surface oil recovering device is used for water surface oil recovery.

The invention provides a self-controlled hot-air solar floor heat storage system, belonging to the technical fields of renewable energy sources and buildings integration utilization. The system is characterized in that: air is closely circulated in a heat storage system formed by a solar air heat collector, a ventilating duct and a heat storage floor under the drive of a circulating fan, wherein the heat storage floor is used to store and release heat; the heat storage floor is constructed by a waterproof layer, a thermal insulating layer, an air duct, a concrete heat storage layer and a ground decoration layer from the bottom to the top; the air duct in the heat storage floor is arranged in a reversed return mode, and concrete or brick vertical columns are staggered in the heat storage floor; an air door and a circulating fan of the heat storage system can be automatically controlled by a temperature sensor, and the required power can be supplied by a solar cell panel. The heat storage system has the beneficial effects of simple structure, convenience in control, operation reliability, low cost and high building integration degree.

The present invention relates to a solar-air heat pump water heater, including a solar-air evaporator, a hot-water tank containing submerged condenser coil, a small heat pump compressor and related refrigerating fittings of thermodynamic expansion valve, gas-liquid separator, drying filter and liquid storage device. The solar-air evaporator is formed from the components of solar heat-collecting plate, air conditioning fan, air vent and shell body. The solar heat collector and air heat-exchanger are combined together by adopting compact structure form. The automatic control device of the water heater includes a temperature difference controller for controlling starting and stopping of the fan and a water tank constant temperature device for controlling starting and stopping of compressor.

The invention discloses a double-thermal-mass coupling solar hot air type evaporating system and a method thereof, and belongs to the field of energy and power engineering as well as evaporation. The evaporating system comprises a solution pump, a waste heat recycler, a humidifier, a concentrated solution pump, a fan, a dehumidifier, a solar heat collector, a water pump and a water tank. According to the double-thermal-mass coupling solar hot air type evaporating system disclosed by the invention, energy utilization efficiency of the evaporating system is improved by utilizing collected energy of the solar air heat collector according to the heat and mass transfer principle of an air-water system through a humidifying process, a dehumidifying process and a heat recycling process. The double-thermal-mass coupling solar hot air type evaporating system effectively reduces heat exchange area of a conventional surface type condenser in a dehumidifying process, reduces the cost problem caused by application of corrosion-resistant noble metal, sufficiently utilizes the energy recycling principle inside the system, improves the energy utilization efficiency of the evaporating system, adopts the solar heat collector to collect solar radiation, greatly reduces the environment problem caused by fossil fuel combustion, and meets the objective of national energy conservation and emission reduction and the sustainable development strategy.

The invention relates to a new method for using a black ceramic tile as a solar heat-collecting plate, the black ceramic tile 1 is a homogeneous black ceramic tile or a compound black ceramic tile which takes an ordinary ceramic layer 11 as a bottom layer and takes a black ceramic layer 12 as a surface layer. Compared with the prior art, a building integrated black ceramic solar air heat collector and a building integrated black ceramic solar water heater which are built by taking the black ceramic tile as the solar heat-collecting plate have the advantages that the manufacturing costs are greatly reduced, the service lives are greatly prolonged and as long as that of a building, furthermore, the heat-collecting efficiency almost can not be decayed after long-term use, the building integrated black ceramic solar air heat collector and the building integrated black ceramic solar water heater can share a heat insulation layer and a waterproof layer with a roof, the comprehensive construction costs can be further greatly reduced and more favorable conditions can be created for large-scale development and utilization of solar energy.

The invention discloses a solar-assisted real-time regeneration system for an anti-freezing solution of an open heat-source tower. The system comprises an air inlet pipe I, a centrifugal fan, a solar air heat collector and an open heat-source tower heat pump system II. The air inlet manner is controlled, the anti-freezing solution in the open heat-source tower can be regenerated, and problems that the concentration of the anti-freezing solution gradually decreases and the freezing point rises during operation of a heat pump of the open heat-source tower are solved; real-time regeneration of the anti-freezing solution is realized, the heat pump is not required to be shut down, and the continuity of heat supply of the heat pump of the open heat-source tower in winter is kept. The solar air heat collector is added in the system, so that sensible heat exchange between air and the anti-freezing solution can be improved. An air type solution regeneration manner is adopted, the requirement of regeneration of the anti-freezing solution for high-grade energy sources is met, and complex equipment is avoided. The solar-assisted real-time regeneration system for the anti-freezing solution is integrated on the basis of the open heat-source tower, renewable energy sources are fully utilized, and large-scale application of solar and heat-source tower heat pump technologies is promoted.

The invention discloses a solar auxiliary heat-pump drying system. The solar auxiliary heat-pump drying system comprises a drying chamber and a heat pump and also comprises a solar solution regenerator, an internal-heat / heat-insulating dual-purpose packing tower and a heat-insulating packing tower. The solar auxiliary heat-pump drying system disclosed by the invention has the advantages that the solar energy can be fully utilized in different seasons of the whole year, the dehumidified dilute solution is heated and regenerated by utilizing the solar energy under the condition of sufficient solar energy, and the heat pump and the solar energy are utilized for realizing the dehumidifying and heating process to the air when the solar energy is insufficient, so that high-efficiency and stable operation of the system can be ensured; when a solution dehumidifying mode is adopted, the solution is directly contacted with the air, heat-exchange temperature difference is low, the irreversible loss is less, and the problem of larger energy consumption in the traditional condensed dehumidifying mode can be solved; and simultaneously, the solution regenerating heat and a part of heat for heating the air are from the solar energy, and can be utilized freely, so that the energy-saving effect of the system is obvious in the whole-year operation.

The invention provides a solar air heat collecting oven. The solar air heat collecting oven has the beneficial effects that fluidity of air in the oven is high, heating is even, and the drying effect is good. The solar air heat collecting oven comprises an oven body (1) and a solar heat collecting device. The solar heat collecting device comprises heat collecting pipes (3) and an insulting box (5). The insulting box (5) is provided with an air outlet pipe (8). An air inlet pipe (4) is arranged in the insulting box (5) and is in sealing connection with the insulting box (5). An air outlet cavity (26) is formed between the air inlet pipe (4) and the insulting box (5) and communicated with the air outlet pipe (8). The air inlet pipe (4) is provided with a plurality of branch pipes (9). After the branch pipes (9) penetrate out of the insulting box (5), the stretching parts are sleeved with the heat collecting pipes (3) respectively, and the heat collecting pipes (3) are in sealing connection with the insulting box (5). The air outlet pipe (8) is connected with a first draught fan (10) connected with the oven body (1).

The invention discloses a flat solar air heat exchanger. The flat solar air heat exchanger comprises a shell, a transparent cover plate arranged on the upper part of the shell, a solar heat absorption plate and a heat exchange plate which are arranged in a closed space sequentially between the transparent cover plate and the shell, a cold air inlet tube which is arranged in the closed space between the transparent cover plate and the shell and positioned at one end of the heat exchange plate, and a hot air outlet tube which is arranged in the closed space between the transparent cover plate and the shell and positioned at the other end of the heat exchange plate, wherein a plurality of heat exchange units are arranged on the heat exchange plate; each heat exchange unit consists of a plurality of heat exchange fins which are arranged on the heat exchange plate at intervals; an air flow channel is formed between two adjacent heat exchange fins; in a direction of air flow, one air flow channel of the former heat exchange unit of the two adjacent heat exchange units is communicated with two air flow channels of later heat exchange unit of the two adjacent heat exchange units, so heat transmission media can be subjected to pressure and flow distribution for many times; furthermore, the heat transmission media are distributed uniformly, so full heat exchange between the heat transmission media and the solar heat absorption plate can be realized and the heat transmission efficiency is high.

The invention provides a low-energy-consumption rural house indoor thermal environment regulation and control system. The system comprises a rural house, a solar air heat collection device, a low-ambient-temperature air source heat pump air heater, a solar hot air valve, a ground channel air valve, a buried air pipe, an outdoor side air valve, an indoor side air valve, an outdoor air inlet, a ratprevention net, a coarse-effect filter, a ground channel air return air inlet and a solar hot air return air inlet. The system combines shallow geothermal energy and solar energy heat utilization technologies on a traditional split air conditioner, the shallow geothermal energy resource is obtained through the buried air pipe, the solar energy resource is obtained through the solar air heat collection device, and the low-ambient-temperature air source heat pump air heater is used as a matched active cold source and heat source, so that cooling in summer and heating in winter are realized, thefresh air requirements of indoor personnel are met, and the system is good in thermal comfort and energy-saving potential, suitable for being used in the rural house and low in operation energy consumption.

The invention discloses a solar drying system and a solar drying method. Aiming at the defect that the solar drying system and the solar drying method in the prior art cannot perform continuous drying, the invention provides a solar continuous drying system and a solar continuous drying method. The drying system introduces hot air into a drying chamber through an air path pipeline; a heat supply system comprises a solar air heat collector and a solar water heat collector; air heated by the solar air heat collector is directly blown into the drying chamber; hot air is obtained through heat exchange of water heated by the solar water heat collector and then is blown into the drying chamber; and an automatic control system of the continuous drying system judges and selects the hot air source blown into the drying chamber and opens and closes the pipeline. Solar heat collectors with two heat exchange working mediums are adopted, so the time difference of utilizing the solar energy is generated, the technical problem that continuous drying operation cannot be realized caused by that the solar drying system or the solar drying method are limited by the sunshine duration condition is solved, electric energy can be saved greatly when large articles are subjected to solar drying operation, and an excellent drying effect is achieved.

The invention discloses a ladder phase change energy storage accumulation bed system in combination with mechanical ventilation. The system is composed of a ladder phase change energy storage accumulation bed and an auxiliary mechanical ventilation system; according to five construction thermal performance design partitions and actual outdoor thermal environment conditions of the China, two or more phase change energy storage materials with different phase change temperatures are selected, the phase change energy storage material is packaged in a metal ball shell, and according to the phase change temperature ladder change, the material is placed in the ladder phase change energy storage accumulation bed, the auxiliary mechanical ventilation system is provided with four stations accordingto the running principle, the ladder phase change energy storage accumulation bed is combined with mechanical ventilation, night natural ventilation, a solar air heat collection device and an air electric heating device under different stations to achieve efficient running of the full-year station, the auxiliary mechanical device is adopted to improve the utilization efficiency of renewable energysources, and the building energy consumption is effectively reduced while indoor human body heat comfort needs are met.