36 results about "Solar-assisted heat pump" patented technology

The invention discloses an absorption refrigerating machine with an integrated solar assisted heat pump system. The absorption refrigerating machine mainly consists of an absorption refrigerating system and the integrated solar assisted heat pump system, wherein the integrated solar assisted heat pump system consists of a heat storage water tank, a condenser, a pump, a compressor, a throttling valve, U-shaped evaporating pipes and a solar thermal collector, the compressor, the U-shaped evaporating pipes the throttling valve and the condenser form a refrigerant circulating passage, and the U-shaped evaporating pipes are arranged in every solar vacuum heat collecting pipes of the solar thermal collector. Low-temperature heat (low-grade heat sources) which cannot be directly utilized are converted into high temperature heat sources to be utilized by the heat pump system, and the energy utilization efficiency can be obviously improved by the adoption of the compression heat pump; the solar vacuum heat collecting pipes are filled with phase change energy storage materials, so that not only is the problem that the heat storage capacity is insufficient caused by the fact that sensible heat is utilized for storing heat solved, but also the defect of instable operation efficiency of the heat pump is overcome, and therefore the COP (coefficient of performance) and the operation stability of the system are improved.

The invention relates to a solar assisted heat pump heater and a control method. The heater comprises a heat pump system, wherein the heat pump system comprises a blow expansion type evaporator, a compressor, a condenser and an electronic expansion valve and is used for allowing cold media to flow, and the condenser is arranged in a water tank and/or outside the water tank, so that the cold media flowing through the evaporator are subjected to heat exchange with water in the water tank; temperature sensors for detecting temperature of the flowing cold media are arranged on an air suction pipeline and an air exhaust pipeline of the compressor respectively. When the temperature Tr of the water tank is lower than a set value T1, corresponding electronic expansion valve opening is obtained according to a temperature detection value of an air suction end of the compressor; when the temperature Tr of the water tank is higher than the set value T1, the corresponding electronic expansion valve opening is obtained according to a temperature detection value of an air exhaust end of the compressor. According to the device and the method, indexing control is adopted according to the water temperature of the water tank during heating of the heat pump, so that the control precision of the electronic expansion valve is higher in a preparation process, the heating efficiency is improved, and the energy consumption is reduced.

The invention relates to a solar-energy auxiliary multifunctional heat pump system, which comprises connected air-conditioning module and composite water heater module. Wherein, the air-conditioning module is formed by serially connected compressor, four-way valve, indoor heat exchanger, first throat element, coil tube heat exchanger, second throat element and outdoor heat exchanger; the composite water heater module is between the first and second throat elements, which comprises a closed support thermal-insulated water bank, a solar-energy collector, a coil tube heat exchanger and the second electromagnetic valve. Said composite water heater module has the functions of heat pump water heater storage pot, and the function of auxiliary steamer. The invention can realize multifunction of air conditioner and water heater to supply the hot water in 50-90Deg. C and confirm the stability of system in winter.

The invention discloses a multifunctional frost-free solar-assisted heat pump system which comprises a refrigerant loop, a first secondary refrigerant loop, a second secondary refrigerant loop and a domestic hot-water bypass. The refrigerant circulating system of the invention comprises a compressor, a refrigerant stop valve, a four-way valve, a first one-way stop valve, a second one-way stop valve, a first throttling element, a second throttling element, a high-pressure liquid storage tank and a gas-liquid separator which are connected in sequence; the first secondary refrigerant loop comprises a first secondary refrigerant tank, a first secondary refrigerant pump and an indoor heat exchanger which are connected in sequence; the second secondary refrigerant loop comprises a second secondary refrigerant tank, a second secondary refrigerant pump, a cooling tower, a solar heat collector, a first secondary refrigerant stop valve, a second secondary refrigerant stop valve, a third secondary refrigerant stop valve and a fourth secondary refrigerant stop valve. The invention thoroughly solves the problems that the conventional cold/hot water heat pump and air-cooled heat pump can be frosted in winter, therefore, the invention is particularly suitable for places which are rich in solar-energy resources and in need of numerous cooling/heating air-conditioners and hot-water supply at the same time.

The invention relates to the energy saving technical field, which discloses a building integration solar assisted heat pump system based on adaptive control. In the invention, an adaptive control module comprises a solar radiometer, an adaptive controller and a display circuit, the solar radiometer is connected with the adaptive controller, the adaptive controller is connected with the display circuit to display the water temperature in a real-time way, and is connected with a general inverter to adjust the running frequency of the system in a real-time way, and the machine stops when the preset water temperature is reached. The outlet of a solar collector is connected with the air suction inlet of an inverter compressor, the air outlet of the inverter compressor is connected with the inlet of a tube heat exchanger, the outlet of the tube heat exchanger is connected with the inlet of an expansion valve, the outlet of the expansion valve is connected with the inlet of the solar collector, the water circulating outlet of a heat storage water tank is connected with the tube heat exchanger after passing through a water pump, the outlet of the tube heat exchanger is connected with the water circulating inlet of the heat storage water tank, another path is connected with a floor heating coil pipe through the heat storage water tank to provide heat, and backwater is discharged into the heat storage water tank through a circulating water pump. The invention has the advantages that the system performance is high, and has a wide applied area.

The invention provides a direct-expansion solar assisted heat pump water heater which belongs to the field of heating, air conditioning and domestic hot water equipments technology. It is comprised by outdoor unit (13), indoor unit (14) and hot water unit (15), wherein compressor (1) of the outdoor unit (13) is connected to B end of four-way valve (2); joint of the exhaust pipe is separated into two channels, wherein one channel goes through first solenoid valve (3), another channel goes through outdoor evaporation/condensation device (6), and then the two channels merge in one channel to connect A end of the four-way valve (2); D end connection tube of the four-way valve (2) is separated into two channels, wherein one channel goes through the outdoor evaporation/condensation device (6), another channel goes through solar energy collection/radiation device (4) and second solenoid valve (5), and then the two channels merge into one channel to connect to expansion valve assembly (8); another end of the expansion valve assembly (8) is separated into two channels, wherein one channel goes through third solenoid valve (9), another channel goes through the indoor unit (14), and then the two channels merge into one channel to connect to C end of the four-way valve (2). The invention has advantages of compact structure, multi functions, energy-saving and environmental protection.

The invention discloses a multifunctional direct-expansion solar-assisted heat pump system. A refrigerant circulating system of the invention comprises a compressor, an indoor heat exchanger, a refrigerant-water heat exchanger, an outdoor heat exchanger, a high-pressure liquid storage barrel, a throttling device, a triple valve, a check valve and a gas-liquid separator which are connected in sequence; and the water circulating system of the invention comprises a solar heat collecting device, a water tank, a water pump and a refrigerant-water heat exchanger which are connected in sequence. By effectively performing the functions of cooling/heating air-conditioners and water heaters, the invention has high energy efficiency, practicability and cost-effectiveness and broad market outlook; and the invention is particularly suitable for places which are rich in solar-energy resources and in need of the cooling/heating air-conditioners and hot-water supply at the same time.

The invention discloses a dried purple sweet potato and a processing method thereof, belonging to the field of a food processing technology. The dried purple sweet potato is prepared form fresh purple sweet potatoes, and the method comprises the steps of selecting the fresh purple sweet potatoes, cleaning, peeling and cutting into strips; after that, carrying out sulfur-free color protection treatment and steam pre-cooking treatment; carrying out combined drying by a solar-assisted heat pump until the water content of the purple sweet potatoes is 20%-30%; finally, cooling, packaging and storing to obtain the dried purple sweet potato. The processing method has the advantages of having a good energy-saving effect, being low in operation cost, high in drying quality, convenient to operate, free from pollution, capable of continuously processing all through the year, etc; the flavor, the color and the related quality of the dried product are maintained to the utmost extent; the processing method has obvious advantages especially for the drying of heat sensitive materials; the prepared dried purple sweet potato product is bright in color, attractive in appearance and good in nutritional ingredient maintenance, thus improving the market competitiveness of the dried purple sweet potato product.

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 discloses a solar-assisted heat pump combined heating and refrigerating system and method. The system comprises a solar heat collection station, a double-source heat pump unit and an indoor heating and refrigerating tail end, wherein the solar heat collection station comprises a solar heat collector and a heat-accumulation water tank, the heat-accumulation water tank is connected with a heat collection circulation pump and the solar heat collector through pipelines sequentially, and one pipeline returns to the heat-accumulation water tank from the solar heat collector; and the double-source heat pump unit comprises an air source heat pump unit and a water source heat pump unit, a water inlet, a water outlet, an air-condition vent and an air-condition return port are formed in the double-source heat pump unit, the water inlet is sequentially connected with a heat pump circulation pump and the heat-accumulation water tank through pipelines, the water outlet is connected with the heat-accumulation water tank through a pipeline, and the air-condition vent and the air-condition return port are connected with the indoor heating and refrigerating tail end. The system can effectively utilize solar energy, water energy and air energy and can perform conversion among the three types of energy supply according to the water temperature change, so that energy is sufficiently and reasonably utilized, and the resource waste is reduced.

The invention provides an energy-saving drying method capable of improving qualities of dried abalones. The energy-saving drying method capable of improving the qualities of the dried abalones comprises the following steps: selecting live abalones; temporarily feeding the selected abalones; shelling the abalones and taking the meat; carrying out high-pressure salting treatment on the abalone meat; carrying out drying by performing radio-frequency drying technology, infra-red drying technology and solar-energy-aided heat pump drying technology in subsection application; moreover, constant-temperature constant-humidity water balancing treatments are performed in supplementation for two times so as to effectively reduce surface shrinking and hardening of the abalone meat; thus, the sensory effects and the re-watering properties of the dried abalones are improved so as to facilitate formation of soft-centre abalones. By adopting the high-pressure salting treatment, the salting treatment process is accelerated by the high pressure, and the synergistic effects of sodium salts and acidic electrolysed water are utilized so as to effectively kill the micro-organisms in the abalone meat; moreover, the effects of the high pressure and the sodium salts are capable of modifying myoglobulin dissolution so as to improve the gel properties of the abalone meat, and further improve the texture characteristics of the re-watered abalone meat. The energy-saving drying method capable of improving the qualities of the dried abalones is simple in operation processes; moreover, novel high-performance green heat sources are selected, so that the energy can be saved by 30% or more. Thus, the energy-saving drying method capable of improving the qualities of the dried abalones facilitates realization of continuous automated clean and energy-saving production.

The invention discloses a process for manufacturing high-grade abalone. The process comprises the steps: selecting the raw material fresh alive high-grade abalone; removing impurities; removing shellsto take flesh, and removing impurities; removing fishy flavor; adding salt to dehydrate; building a sealed airing room; fermenting at a constant temperature; taking materials by utilizing a mode of solar energy assisted hot pump, and drying the abalone; and pressing and forming with wires. The technical process is simple and reasonable, the medicinal value of the finished product abalone can be increased, and the sale value of the abalone can be increased, so that producers and consumers can be benefited, the market share of abalone can be increased, and development of abalone breeding and abalone processing industry in China can be effectively improved.

The invention relates to the technical field of food processing, and aims to provide a preparation method of dried fructus gardeniae fruits. The preparation method comprises the following steps of step 1, blanching fresh fructus gardeniae fruits; step 2, drying the blanched fructus gardeniae fruits obtained in the step 1 through united drying of a solar-assisted heat pump until the water ratio of dry basis of the dried fructus gardeniae fruits is smaller than 8.5wt%; and step 3, cooling the dried fructus gardeniae fruits obtained in the step 2 to 25 DEG C or below, and placing the cooled fructus gardeniae fruits under the condition of minus 4-5 DEG C for storage. The drying method used in the preparation method disclosed by the invention has the advantages of being good in continuity, high in drying efficiency, and low in energy consumption (with the unit energy consumption being 15.12-20.88kJ/g). The color, the flavor, the shape and the texture of the dried fructus gardeniae fruits prepared by the method disclosed by the invention are maintained well, and the quality of the dried fructus gardeniae fruits is excellent.

Provided is a photovoltaic loop heating pipe assisted twin-heat-source heat-pump heat supply system. The photovoltaic loop heating pipe assisted twin-heat-source heat-pump heat supply system mainly comprises a solar/air evaporator, a pipeline A, a valve A, a pipeline B, a compressor, a pipeline C, a pipeline D, a condenser, a valve C, a pipeline E, a solar photovoltaic-loop heating pipe evaporator, a pipeline F, a valve D, a pipeline G, a pipeline H, a valve B and a capillary tube. According to the operation mode of a heat pump, solar energy and air are adopted as heat sources, the defect that an air source heat pump has low operation efficiency or can not operate in a low temperature environment is overcome, and the problem that the area of a heat collector in a common solar auxiliary heat-pump heat supply system is too large is solved; by arranging the evaporator in the loop heating pipe mode and the evaporator in the heat pump mode in a split mode, mismatch between the condenser and the evaporators when the two modes share the condenser is avoided; and the overall structure is simple, the solar photo-thermal utilization integrated conversion efficiency can be improved sufficiently, external power supply of the system is achieved, and the energy consumption of the heat supply system for buildings is approximately zero.

The invention discloses a solar assisted heat pump drying system. The solar assisted heat pump drying system comprises a drying chamber, a two-stage compression type heat pump system and a solar vacuum heat pipe heat collecting system; the two-stage compression type heat pump system is connected with the drying camber and is used for supplying heat energy required for drying to the drying chamberthrough a drying medium; the solar vacuum heat pipe heat collecting system is connected with the drying chamber and is used for supplying the heat energy required for drying to the drying chamber through the drying medium; and the solar vacuum heat pipe heat collecting system is also connected with the two-stage compression type heat pump system and is used for preheating the drying medium which enters the two-stage compression type heat pump system. According to the heat pump system disclosed by the invention, two compressors are arranged in parallel, so that enough heat energy can be supplied to the system; a condenser and a secondary condenser are connected in parallel; multi-position control of the temperature of the drying medium can be realized; and the heating efficiency of the heatpump system can be ensured through the heat exchange of the secondary condenser and the condenser.

The invention relates to the field of new energy utilization, and discloses a solar energy auxiliary heat pump and phase-change energy-storage integrated heating system. The integrated heating systemcomprises a solar photoelectric photothermal collector, a hot water box, a first circulating pump, a heat pump, a heat exchanger and a phase-change energy-storage unit; solar auxiliary heat circulation is formed by the solar photoelectric photothermal collector through the first circulating pump, the heat pump is connected with one side of the heat exchanger, the solar photoelectric photothermal collector provides electric energy to the heat pump system for driving, and the phase-change energy-storage unit is connected with the other side of the heat exchanger; and a second water outlet is connected with a radiator through the other side of the heat exchanger and the phase-change energy-storage unit, and returns a backwater inlet. In the daytime, electricity amount consumed by the heat pump can be significantly reduced by adopting a solar photovoltaic photothermal technology and a large number of solar heat collection is used for heating, and the operating cost is significantly reduced; and at night, the phase-change energy-storage unit is used for heat storage, the utilization rate of trough electricity can be greatly improved, and thus waste of resources is greatly reduced.

The invention discloses an instant pumpkin powder solar-assisted heat pump drying method. The method takes fresh pumpkins as a raw material and comprises the following steps: carrying out selection, pretreatment and ultrasonic wave-blanching pretreatment, then achieving safety water content by virtue of a solar-assisted heat pump combined drying method, enabling water content of dry basis to be below 10wt%, and finally carrying out drying kinetic analysis and process optimization study. The method disclosed by the invention applies the ultrasonic wave-blanching pretreatment method and a solar-assisted heat pump combined drying technique and has the advantages of good enzyme deactivation effect, shortened drying time, energy conservation, low cost, easy operation and no pollution, loss of nutrient substances and influence on color of pumpkin powder can be reduced to the utmost extent, related qualities such as color, fragrance and taste of instant pumpkin powder are maintained, large-scale energy-saving processing and production are realized, and the pumpkin powder which is full of nutrients and fine in taste is obtained.

The invention discloses a solar auxiliary heat pump system integrating functions of waste heat recovery and self-cleaning, and belongs to the technical field of solar power generation and heat pump systems. The system comprises a solar cell panel integration device, a direct-fired absorption type heat pump unit and a working condition loop communicating with the solar cell panel integration device and the direct-fired absorption type heat pump unit, the solar cell panel integration device comprises a solar cell panel arranged on two supports through transmission shafts, a heat insulation device arranged at the upper end of the solar cell panel, a transmission device arranged on the supports, an automatic cleaning device arranged on the solar cell panel and a heat exchanger arranged on the back surface of the solar cell panel, and the working condition loop is divided into a summer daytime working condition loop, a summer night working condition loop, a winter daytime working condition loop and a winter night working condition loop. According to the system, the operation cost of the system can be reduced, the heat pump efficiency is improved, extra electric quantity can be created for users, and the power generation efficiency of the solar cell panel is improved.

The invention relates to non-sulfur anti-browning sweet potato slices and a processing method thereof. The method comprises the steps of peeling, slice cutting, rinsing, non-sulfur anti-browning, steam pre-cooking, solar-assisted heat pump combined drying, cooling, seasoning and packing. According to the making method, by means of a non-sulfur anti-browning agent, the surface color of dried sweet potatoes can be good, and the effect of inhibiting enzymatic and non-enzymatic browning can be achieved; meanwhile, a solar-assisted heat pump combined drying technology is utilized for producing the dried sweet potatoes, the flavor, color and relevant quality of dried products can be maintained to the maximum extent, the made dried sweet potatoes are bright in color and attractive in appearance, the nutritional ingredient are well maintained, and enhancement of the market competitiveness of dried sweet potato products is promoted.

The invention relates to sulfur-free color-protected potato strips and a processing method thereof. The processing method comprises the following steps; removing peel; cutting potatoes into strips; rinsing the potato strips; performing sulfur-free color protection; performing steam pre-cooking; performing joint drying through a solar-assisted heat pump; cooling the dried potato strips; flavoring the cooled potato strips; and packaging the flavored potato strips. According to the processing method, a sulfur-free color protecting agent is adopted, so that the surfaces of dried potatoes have good color, and the effects of inhibiting enzymatic promotion and non-enzymatic browning can be achieved; besides, a joint drying technology of the solar-assisted heat pump is adopted to produce dried potatoes, so that the flavor, the color and relevant quality of the dried potatoes can be furthest maintained, the produced dried potato products are bright in color, beautiful in appearance, and good in reservation of nutritional ingredients; therefore, the enhancement of the market competitiveness of the dried potato products is facilitated.