244results about How to "Improve solar utilization" patented technology

The invention discloses a solar heating system, which comprises a solar heat-collecting circulation loop (10), a heat pump (34), a heating circulation loop (20), a heat supply output circulation loop (30) and a controller (40), wherein the heating circulation loop comprises circulating water pumps (42, 43, 44, 45 and 46), a heat exchanger (32), a heating heat storage tank (23) and a heating heat supply water tank (24); a hot water tank (21) is connected with the heating heat storage tank through the circulating water pumps and the heat exchanger; the heating heat storage tank is connected with the heating heat supply water tank through a water source heat pump (33); and the solar heat-collecting circulation loop, the heat pump, the heating circulation loop and the heat supply output circulation loop are electrically connected with the controller respectively. The time-sharing work system is formed between the solar heat-collecting circulation loop and the heat pump in the heating system; the heating system has lower operation cost and can also provide clean domestic hot water under the condition of heating priority. The invention also relates to a method for heating and supplying hot water for the solar heating system.

The present invention relates to a solar composite energy system based on solid adsorption refrigerating machine in the energy-saving field. Said system includes solar collection system, solar hot water supply system, solar floor heating system, solar air-conditioning system, solar natural ventilation system and control system.

The invention relates to a recovery type solar drying device, comprising: 1. a hot air flow heat-collecting and heat-storing circulating system implemented by components such as an all-glass vacuum heat-collecting tube, a heat tube (2), a heat-dissipating piece (3), a metal net layer (4), a pebble heat-storing device (5), a heat exchange device (9), a variable-frequency speed-regulating fan (8) and the like; 2. a material drying system implemented by components such as a material drying insulating box (10), a netty material drying box (21), a fan (24), a material (25) to be dried and the like; 3. a dried material water recovery system implemented by components such as a dried material steam discharge device (11), a condensing device (12), a dried material water recovery pipeline (14) and the like; and 4. components including a valve, an electric auxiliary heating device, a sensor and the like. The recovery type solar drying device has wide application range, can dry different types of materials and form series of products of the solar drying device.

The invention discloses a rotation-adjustable photovoltaic support, comprising a mounting base, wherein a vertical rotating rod is rotatably connected to the upper side of the mounting base; one sideof the rotating rod is provided with a driving motor; a driving gear is fixed to the top of the output shaft of the driving motor; a driven gear that cooperates with the driving gear is disposed on the outer side of the rotating rod; the driving gear is meshed with the driven gear; a support plate is fixedly disposed on the top of the rotating rod; support sleeves are disposed vertically on both ends of the upper surface of the support plate; telescopic columns are disposed in the support sleeves; a plurality of equally spaced threaded holes are formed in one side of each telescopic column; and a threaded plug passes through a side of the top of each telescopic sleeve. The rotary adjustable photovoltaic support overcomes the deficiencies in the prior art, changes the inclination angle of the mounting bracket by changing the orientation of a mounting bracket by rotation and adjusting the lengths of the telescopic columns, increases the utilization rate of solar energy, is expanded in use range, and is improved in practicability.

The invention discloses a light-gathering seawater desalination device and a seawater desalination method. The seawater desalination device includes: a semielliptical solar heat collection cover, wherein a freshwater collection tank is arranged at the bottom of the inner wall of the solar heat collection cover, the freshwater collection tank defines an evaporation plane at the bottom of the solarheat collection cover, a freshwater outlet is arranged in the freshwater collection tank, the freshwater outlet is connected with a freshwater storage unit, the b-axis length of the solar heat collection cover is longer than the a-axis length of the solar heat collection cover, and the b-axis is perpendicular to the evaporation plane; a light gathering member, wherein the light gathering member isconfigured to gather sunlight radiated to the solar heat collection cover; and a cooling unit, wherein the cooling unit is arranged outside the solar heat collection cover, and is configured to coolthe outer surface of the solar heat collection cover. The light-gathering seawater desalination device can be directly used on the water surface (such as the sea surface), and has the advantages of simple structure, low cost, convenience in use, high solar energy utilization rate, high seawater desalination efficiency and high water purification efficiency.

The invention discloses a greenhouse with an adjustable light reflection device. The greenhouse comprises the adjustable light reflection device, a light-transmission layer, a heat preservation enclosing structure and a movable heat preservation quilt. The adjustable light reflection device is located in the greenhouse and close to the north face of the greenhouse. The movable heat preservation quilt is arranged on the light-transmission layer. The adjustable light reflection device comprises a plurality of reflector modules, a left supporting rod, a right supporting rod, a traction chain, driving gears and a motor cabinet. The reflector modules are parallelly placed in the vertical direction and connected with the traction chain through the gears. A motor in the motor cabinet drives the driving gears to rotate so as to adjust reflector angles. By adoption of the greenhouse, the solar energy utilization rate of the unit floor area is increased, meanwhile, the intensity of sunlight received by plants is improved, the heat preservation performance and the sunlight uniformity of the greenhouse are ensured, and the greenhouse is simple in structure, low in cost, attractive in appearance, and large in popularization potentiality.

The invention provides a sea water desalination method based on the photothermal effect of copper nanoparticles. The method includes the steps: covering a cellulose membrane with the copper nanoparticles; placing the cellulose membrane with the surface covered with the copper nanoparticles into a sea water surface to be desalinated; irradiating the surface of the cellulose membrane by a light source; evaporating sea water; collecting the evaporated water; desalinating the sea water. The copper nanoparticles can nearly completely and all-dimensionally absorb sunlight in a wideband manner, solarenergy is efficiently converted into heat energy, the cellulose membrane with a porous surface is highly hydrophilic, can float on the water surface, accelerates water pumping water delivery and cooperates with the photothermal effect of the copper nanoparticles, so that the cellulose membrane can be applied to the evaporation process of the sea water in nature, solar energy use ratio and water evaporation efficiency are greatly increased, the method can be widely applied to sea water desalination, the energy can be effectively used, and environments can be protected.

An array linkage type solar energy two-degree-of-freedom tracking system comprises a supporting mechanism, a tracking mechanism, a linkage mechanism, and a driving device, wherein the supporting mechanism supports a battery panel tray by using a cardan joint and a vertical shaft; the tracking mechanism is connected to a transmission gear by using the linkage mechanism, the driving device is connected to the linkage mechanism, the linkage mechanism is connected to a tracking crank by using a linkage diverter and a linkage connecting rod, and performs successive disjunction distribution and winding cascading on two types of linkage nodes a and b along an azimuth angle (or altitude angle) linkage direction by using a steel wire rope, to implement power transmission between nodes in an array. According to the present invention, the quantity of driving devices and the quantity of sensors are reduced, a structure is relatively simple, and array linkage type solar energy two-degree-of-freedom tracking is implemented with low costs, so that not only a solar energy utilization ratio is improved, but also a geography adaptive capacity is enhanced, and array expansion is simpler and more convenient; and the quantity of battery panel components carried by a single tracking device is greater, and an area is larger.

The invention relates to a phase change heat storage type solar energy evacuated collector tube and a solar water heater comprising the phase change heat storage type solar energy evacuated collector tube, which belong to the technical field of solar energy. The phase change heat storage type solar energy evacuated collector tube comprises a glass outer pipe of an outer layer and a metal inner pipe of an inner layer, a ripple structure is arranged on the metal inner pipe close to an opening end of the metal inner pipe, opening ends of the glass outer pipe and the metal inner pipe are welded through kovar alloy rings, elastic sliding support pieces are arranged between closed ends of the glass outer pipe and the metal inner pipe, vacuum parts are arranged between the glass outer pipe and the metal inner pipe, selective absorbing coatings are coated on pipe outer wall of the metal inner pipe, a sealing cover is arranged on the opening end of the metal inner pipe, phase change heat storage materials are filled in the metal inner pipe, a U-type heat exchange pipe is embedded in the phase change heat storage materials, and an inlet end and an outlet end of the U-type heat exchange pipe stretches outside the opening end of the metal inner pipe and pass through the sealing cover to fix. The phase change heat storage type solar energy evacuated collector tube and the solar water heater comprising the phase change heat storage type solar energy evacuated collector tube have the advantages of integrated heat collection and storage, no water tank, small space usage and large heat storage amount and the like.

The invention relates to a carbon-doped ultrathin bismuth tungstate nanosheet photocatalytic material and a preparation method thereof. The modified carbon-doped ultrathin bismuth tungstate nanosheet photocatalytic material is characterized by being doped with carbon and prepared by piling ultrathin flaky bismuth tungstate nanosheets bent and agglomerated to some degree. The novel visible-light responsive carbon-doped ultrathin bismuth tungstate nanosheet photocatalytic material is of a flaky structure, has more active sites and large specific surface area, excellent CO2 capturing capability and visible-light response and charge transfer capability and low photoproduced electron-hole pair compounding efficiency, the solar energy utilization rate is greatly improved, the material is used for photocatalytic reduction of CO2, and the photocatalytic reduction activity of the CO2 can be obviously improved.

The invention provides a solar aerator which comprises a solar device, a connecting shaft, a buoyancy device, a storage battery, a motor, a controller, a sensing system, an aeration driving mechanism and an aeration impeller, wherein the buoyancy device is fixedly connected with the connecting shaft; the solar device is connected with the aeration driving mechanism and the motor through the solar device; the aeration driving mechanism is connected with the aeration impeller; a central shaft of the aeration impeller is vertically arranged; the motor is connected with the storage battery, the controller and the sensing system. According to the solar aerator, the solar device is utilized to convert solar energy into electric energy and the aeration impeller is utilized to stir water, so that the function of water aerating and water treating is achieved, the water quality is effectively improved, the organic pollutant in water is degraded, the black odor is eliminated, the alga and bottom mud endogenous pollution is reduced, the use ratio of solar energy is increased, the automatic aeration can be realized without extra power supply, and the energy conservation and the environment protection are benefited.

The invention provides a membrane distilled water treatment system and method which are combined with a solar concentrating photovoltaic photo-thermal technology. The membrane distilled water treatment system comprises a solar concentrating photovoltaic photo-thermal system, a membrane distilled water treatment system body, a thermal storage and power storage system and a heat exchange system, thesolar concentrating photovoltaic photo-thermal system and the membrane distilled water treatment system body are organically combined through the two-stage heat exchange system, a two-stage heating device is designed to achieve the efficient and reasonable heat and power output of the concentrating photovoltaic photo-thermal system, and the efficient storage of solar energy is achieved through atwo-stage energy storage system. The system can still run normally at night by utilizing the stored thermoelectric power to achieve the purpose of maximally utilizing the solar energy. The membrane distilled water treatment system and method which are combined with the solar concentrating photovoltaic photo-thermal technology have the advantages that the comprehensive utilization rate of the solarenergy is higher, the utilization rate of the raw water is higher, more fresh water is obtained, the efficiency is high, the cost is low, and the application prospects are wide.

The invention discloses a preparation method of a phosphorus doped bismuth phosphate photocatalyst, and belongs to the technical field of preparing of nanometer materials; the preparation method is as follows: first mixing red phosphorus and deionized water in an autoclave for hydrothermal reaction, after the reaction, washing an obtained solid product with the deionized water, drying to obtain a red phosphorus precursor with surface oxides being removed; then under magnetic stirring, putting the red phosphorus precursor in an aqueous nitric acid solution in which bismuth nitrate is dissolved for ultrasonic treatment, placing the mixing system in the autoclave at 180 DEG C for hydrothermal reaction, and after the reaction, cooling to room temperature; then washing a precipitate product with the deionized water and ethanol, and finally, drying to obtain the phosphorus doped bismuth phosphate photocatalyst. According to the method, the phosphorus doped bismuth phosphate photocatalyst can be successfully prepared by one step low temperature hydrothermal method, the method is novel and simple, the phosphorus doped bismuth phosphate photocatalyst is high in photocatalytic activity, a simulated dye can be degraded under the condition of light irradiation, and 2.5 hours after the degradation rate is as high as 95%.

The invention discloses a solar anti-bird device and method for a high-voltage transmission line tower. The device comprises a fixing base, a connection plate, a tank body and a solar cell panel, the fixing base is fixedly arranged on a cross arm of the high-voltage transmission line tower through fastening bolts and nuts, and the connection plate is arranged on the fixing base; the tank body is arranged on the middle of the connection plate, two symmetric medicine liquid spraying devices are arranged in the tank body, the solar cell panel is fixedly arranged on the connection plate through a supporting rod, and sound generation devices are symmetrically arranged at two ends of the bottom of the solar cell panel; the medicine liquid spraying devices comprise medicine liquid tanks, liquid inlet pipes, seal covers, liquid outlet pipes and mist spray nozzles; a storage battery, an intelligent control device and a medicine liquid pump are further arranged in the tank body. According to the solar anti-bird device, the solar energy is adopted to supply energy, and bird-afraid pungent smell and sound are generated to achieve the double anti-bird aim.

A scheduling method based on green-energy-aware uses solar energy as green energy and conducts optimizing and distributing on works reaching a data center. The scheduling method based on green-energy-aware comprises the following steps: predicting according to illuminated scope and weather conditions to acquire solar energy which can be used by the data center; preprocessing the works reaching to the data center, each work comprising a plurality of tasks, communication constraint relationships existing among all tasks, conducting grading on works needing to schedule according to the communication constraint relationships in works, and gradually distributing tasks without communication constraint relationships to every grade; under requirement of meeting work time limit, conducting scheduling on preprocessed work assembly according to grades, sequentially distributing task of every grade to every server, fully considering loss conditions of the servers and communication network in the distributing process, and aiming at achieving highest solar energy use ratio. The scheduling method based on green-energy-aware can be applied to scheduling of the data center of random dynamic, achieve the effect that the solar energy use ratio is highest and cost of the data center and carbonic emission are lowered.

The invention provides a preparation method of a composite photocatalyst. The preparation method comprises the following steps: mixing graphite-phase carbon nitride and a non-proton organic solvent to obtain a graphite-phase carbon nitride dispersion solution; mixing metal phthalocyanine disclosed as Formula I, a condensing agent, a neutralization agent and a non-proton organic solvent to obtain a metal phthalocyanine solution; dropwisely adding the graphite-phase carbon nitride dispersion solution into the metal phthalocyanine solution, and heating the obtained reaction solution to carry out condensation reaction, thereby obtaining a composite photocatalyst precursor; and mixing the composite photocatalyst precursor with TiO2 and water, and compounding under ultrasonic conditions to obtain the composite photocatalyst. In the composite photocatalyst prepared by the method provided by the invention, the graphite-phase carbon nitride and metal phthalocyanine are linked by amido bonds; the graphite-phase carbon nitride and titanium dioxide are sensitized by the metal phthalocyanine, thereby effectively widening the visible light response range of the photocatalyst and enhancing the solar energy utilization ratio; and thus, the composite photocatalyst has favorable application prospects in organic matter catalytic oxidation.

The invention relates to an energy storage solar ejection refrigeration device by adopting the solar energy to refrigerate, comprising a solar thermal collector, a water pump and a generator which form a circulation loop together with the solar thermal collector, a refrigerating medium circulation loop which exchanges the heat with the generator and consists of an ejector, a condenser and the refrigerating medium which are connected in series, a refrigerating medium circulatory refrigeration loop consisting of a throttling valve, an evaporator, the ejector and the condenser and an air conditioning circulatory refrigeration loop consisting of an air conditioning water pump and the evaporator, wherein, in the air conditioning circulatory refrigeration loop, a cold water loop is provided with a three way valve F6 and a valve F1, a cold water supply pipeline is provided with a valve F2 and a three way valve F4, an ice storage tank is arranged on a pipeline between the three way valve F6 and the three way valve F4, a pipeline between the valve F2 and the three way valve F4 is communicated with the ice storage tank by the valve F3, a pipeline between the ice storage tank and the three way valve F4 is also provided with a valve F5. The solar energy utilization ratio is increased by more than 30 percent, the cooling capacity is increased by more than 20 percent, 'the peak shifting and valley filling' of the solar energy is realized and the electric fence load is lightened.

The invention discloses a solar water heater allowing dust to be removed conveniently. The solar water heater comprises a base, foldable wheels, a cleaning brush and screw holes, containing grooves are formed in the side face of the base, connecting rods are arranged inside the containing grooves, the foldable wheels are fixed to the connecting rods, the clearing brush is arranged in a sliding groove, an inner groove is formed in each first supporting rod, a clamping groove is formed in each inner groove, a second supporting rod is arranged inside each inner groove, a telescopic buckle is fixed to the surface of each second supporting rod, the screw holes are formed in the lower ends of the second supporting rods, and a thermal-insulation water tank is arranged above the base and connectedwith evacuated collector tubes. According to the solar water heater, the cleaning brush with sliding blocks is arranged on a support, meanwhile, bristle brushes on the cleaning brush sleeve the evacuated collector tubes, the cleaning brush can be driven by a motor to slide vertically on the evacuated collector tubes to clear off dust, the heating effect of the evacuated collector tubes can be enhanced, and accordingly the utilization rate of solar energy is increased.

The invention provides a solar seawater desalting plant which consists of a disc type Stirling solar power system, a Stirling heat pump seawater desalination system, a seawater supply system, a fresh water transportation system, a sea salt storage and transportation system, a power transmission and distribution system and an automatic control system. Solar energy is firstly transformed into electric energy by a heat accumulation type Stirling solar generator, and then the electric energy is used for driving a Stirling heat pump to simultaneously heat and evaporate seawater and condense water vapor so as to separate the seawater into fresh water and sea salt. Since a heat engine of the disc type Stirling solar power system is high in efficiency and the Stirling heat pump is large in heating coefficient, due to the advantage superposition of the disc type Stirling solar power system and the Stirling heat pump which are combined, the utilization rate of seawater resources is high, the yield of the fresh water is high, the water quality is good, no emission is caused and the production cost is low. Being connected with an external power grid, the power transmission and distribution system can be replenished with power from the external power grid when the sunshine is not enough so as to guarantee normal proceeding of seawater desalination.

The invention relates to a two-channel chimney device, a seawater desalting device and a method for forming two airflow channels. The two-channel chimney device comprises a heating chamber, an ascending air channel communicated with the heating chamber, and a descending air channel, wherein an outlet of the descending channel is communicated with the heating chamber, air flow paths among the descending air channel, the heating chamber and the ascending air channel enable gas, which is expanded under heating, in the heating chamber to enter the ascending air channel by virtue of a chimney effect, and gas is also introduced into the heating chamber through the descending air channel. By virtue of the two-channel device, heat energy generated by desalting seawater can be efficiently reused, and the loss of heat in the heating chamber can be reduced. According to the invention, the defects of seawater desalting by solar energy in the prior art are overcome, the seawater desalting ratio is improved, the energy consumption is reduced, and the construction and maintenance costs are low.

The invention relates to a solar cross-season heat-storage heating system which comprises a solar collector, a heating tail end, a layered water tank, an underground heat storage region and an auxiliary heat source, wherein a water supply pipe of the collector is connected with a high-temperature region of the layered water tank through a first electromagnetic valve, a first circulating water pump is arranged on a water return pipe of the collector, and the water return pipe of the collector is connected with a low-temperature region of the layered water tank; the low-temperature region of the layered water tank is connected with the underground heat storage region through a second circulating pump, and the water supply pipe of the collector and the low-temperature region of the layered water tank are provided with a communicating pipe and equipped with a second electromagnetic valve; the water supply pipe at the heating tail end is connected with the first electromagnetic valve, the high-temperature region of the layered water tank and the underground heat storage region through a third circulating water pump, and the water return pipe at the heating tail end is connected with the low-temperature region of the layered water tank; and the water supply pipe of the auxiliary heat source is connected with the high-temperature region of the layered water tank and the water return pipe of the auxiliary heat source through a fourth circulating water pump for constituting a heating season trough electric heat storage system. The solar cross-season heat-storage heating system uses solar energy as main energy input and can meet the 24-hour heating needs of a building by using cross-season heat storage/heat release for balancing the seasonal peak/trough distribution of the solar energy.

The invention discloses a BiPO4-WO3 composite photocatalyst and a preparation method thereof, and belongs to the technical field of inorganic environment-friendly photocatalysis materials. According to the technical scheme, the preparation method of the BiPO4-WO3 composite photocatalyst comprises the steps that 1, sodium tungstate and sodium chloride are added into deionized water according to the molar ratio of 1:1, the pH value of the mixed solution is adjusted with hydrochloric acid to range from 0.5 to 1 and transferred into a hydrothermal reaction still, the hydrothermal reaction still is placed in a microwave digestion instrument, a microwave reaction is carried out for 10 min to 30 min at the temperature of 180 DEG C, cooling, washing and drying are carried out after the reaction is finished, and WO3 powder is obtained; 2, a bismuth nitrate water solution is prepared, sodium dihydrogen phosphate and the WO3 powder are added to form a mixed solution; 3, the mixed solution obtained in the step 2 is stirred for 1 h at room temperature and then transferred into the hydrothermal reaction still, the hydrothermal reaction still is placed in the microwave digestion instrument, a microwave reaction is carried out for 10 min to 30 min at the temperature of 180 DEG C, centrifugation, washing and drying are carried out after the reaction is finished, and the BiPO4-WO3 composite photocatalyst is prepared. According to the prepared BiPO4-WO3 composite photocatalyst, the utilization rate of sunlight and photocatalytic activity are effectively increased.