41results about How to "Improve heating energy efficiency ratio" patented technology

The invention provides an air conditioner defrosting circulation system comprising a compressor. A compressor exhaust pipe is connected with a four-way valve which is connected with an outdoor heat exchanger, an indoor heat exchanger and a gas-liquid separator, the gas-liquid separator is connected with a compressor intake pipe, a heat storage water tank is arranged on the compressor exhaust pipe, and a water spray port of the heat storage water tank is formed in the outdoor heat exchanger and matched with a return pipe of a water storage tank. The four-way valve is not switched, but the heat-preservation heat storage water tank is arranged on the compressor exhaust pipe to collect waste heat during circulation and fully utilize the waste heat, an outdoor unit is defrosted by a hot water spraying mode, normal heating of an indoor unit is guaranteed in the whole defrosting process, heating efficiency is improved effectively, and service life of the system is prolonged.

The invention provides an ultralow-temperature overlapped triple generation heat pump unit.The ultralow-temperature overlapped triple generation heat pump unit is characterized in that a low-temperature heat pump system, a high-temperature heat pump system, a hot water producing device and a control center are included; the hot water producing device comprises a hot water producing heat exchanger, a circulating water pump is arranged at the cold water inlet end of the hot water heat exchanger, and an evaporation condenser is connected with a high-temperature throttling device through a high-temperature heat exchanger switching solenoid valve; the output end of a high-temperature part compressor is connected with the heat medium input end of the hot water producing heat exchanger, the heat medium output end of the hot water producing heat exchanger is connected with a high-temperature part four-way valve, and the high-temperature part four-way valve is controlled to control the output end of the high-temperature part compressor to be selectively communicated with a high-temperature part air cooling heat exchanger or a high-temperature part water side heat exchanger.The needs for air conditioner refrigeration and heating and domestic hot water can be met at the same time, an overlapped system is not started during refrigeration, single-stage compression is adopted for refrigeration, the system is simpler and better in energy saving effect, the overlapped system is adopted in the low-temperature heating process, and the heating energy efficiency is higher.

The invention provides a multi-section heating multi-section tempering and drying airflow closed cycle heat pump drying system. The multi-section heating multi-section tempering and drying airflow closed cycle heat pump drying system comprises a drying part, a heat pump system, a drying medium inflow channel and a drying medium outflow channel, wherein the heat pump system is used for producing a drying medium, and the drying medium inflow channel and the drying medium outflow channel communicate with the drying part. The inflow channel and the outflow channel communicate end to end. The drying part, the inflow channel and the outflow channel form a loop allowing the drying medium to circulate. The drying part comprises at least one drying room. At least two drying sections are arranged in each drying room. The two or more drying sections are arranged at intervals in sequence, and the space between every two adjacent drying sections form a tempering section. The drying medium from the inflow channel flows through the drying sections. To-be-dried objects pass the drying sections to be dried, enter the tempering sections to be tempered, and then reenter the next drying section to be dried. According to the multi-section heating multi-section tempering and drying airflow closed cycle heat pump drying system, the multiple heating and drying sections and the multiple tempering sections are arranged, so that the drying operation temperature is lowered, the heating energy efficiency ratio of a heat pump unit is greatly increased, and in addition, the dust pollution of air-out of a drying device to the environment is completely eliminated.

The invention relates to an air source heat pump unit capable of realizing continuous heat supply. The air source heat pump unit comprises a compressor unit, an indoor water heat exchange unit, a quasi-second-stage compression unit, an outdoor air heat exchange unit and a defrosting branch unit. According to the air source heat pump unit disclosed by the invention, the new technical scheme of quasi-second-stage compression, water-side double-stage heat exchange, and multi-branch heat taking and alternating defrosting, of an air source heat pump under the working condition of low environment temperature is adopted, firstly, a compressor is additionally provided with an air supplementing port, and a middle plate heat exchanger is additionally arranged in a system, so as to form heat pump circulation with the quasi-second-stage compression; secondly, double-stage heat exchange is adopted for the indoor water heat exchange unit, and two stages of heat exchangers are arranged, so as to furthest increase the temperature of circulating water, and the temperatures of supply and return water; and finally, an outdoor air heat exchanger of the air source heat pump is configured to be at leasttwo branched heat taking and defrosting systems capable of independently running, and defrosting operation is carried out on a fluorine-air heat exchange mechanism in each branch in an alternating manner one by one, so that alternating accurate defrosting and continuous heat supply are realized.

The invention provides a multistage heating and multistage tempering drying type airflow open-cycle heat pump drying system. The system comprises a drying portion, a heat pump system used for generating a drying medium, and an inflowing channel and an outflowing channel which communicate with the drying portion; the drying medium flows into the drying portion through the inflowing channel, dries a to-be-dried material in the drying portion and then is discharged out of the outflowing channel; the drying portion comprises at least one drying chamber, at least two drying segments are arranged in each drying chamber, two or more drying segments are arranged sequentially in a spaced mode, and spaces between the adjacent drying segments form tempering segments; the drying medium from the inflowing channel flows through the drying segments; and the to-be-dried material is dried through one drying segment, then enters one tempering segment to be subjected to tempering, and then enters the next drying segment to be dried. According to the multistage heating and multistage tempering drying type airflow open-cycle heat pump drying system, through arrangement of the multiple heating drying segments and the multiple tempering segments, the drying production intensity of the drying portion is enhanced, and the heating energy efficiency ratios of heat pump units are greatly increased.

The invention discloses kitchen ware based on a semiconductor thermoelectric effect. The kitchen ware comprises a semiconductor refrigerator, a stove surface, a radiating device and a power module, wherein the power module is electrically connected with the semiconductor refrigerator for providing direct current power for the semiconductor refrigerator; the stove surface is fixedly arranged on a hot end polar plate of the semiconductor refrigerator; and the radiating device is arranged below a cold end polar plate of the semiconductor refrigerator. Since the kitchen ware is heated by using the semiconductor refrigerating device, the kitchen ware has a higher heating energy efficiency ratio and is more energy-saving. Certain refrigeration is also produced by the kitchen ware using the semiconductor refrigerating device during heating, so that the emission of atmospheric comprehensive heat is reduced, and the environmental temperature is improved; and air conditioning equipment can also be prevented from being additionally arranged in a working space of the kitchen ware for cooling, so that the energy consumption is further reduced.

The invention relates to an antifreezing-agent multi-path large-temperature-rise heat-extracting air-exhausting vapor-source cascading heat pump. Cascading heat pump condensers are connected seriallyso as to run, large-temperature-rise circulating water is heated in a cascading way, and large-temperature-rise fresh air is heated in a multi-path fresh air coil pipe, so that the relative humidity is reduced, indoor moisture is absorbed, and an air-exhausting vapor heat source is formed; and evaporators are connected serially so as to run, a large-temperature-drop antifreezing agent is cooled ina cascading way, and air-exhausting and temperature-dropping sensible heat, condensation latent heat and frosting latent heat are recovered tertiarily in a multi-path heat returning coil pipe. Small-flow circulation and large-temperature-rise heat exchange are carried out on two sides of the heat pump, so that the investment and the electricity consumption of a heat pump unit, various functionalterminals, a circulating pump, a pipeline and a valve are reduced. Rolling defrosting is realized through the minimum heating capacity.

The invention discloses an improved variable frequency air conditioner. A refrigeration one-way valve device with a throttling function or a plurality of refrigeration one-way valve devices with a throttling function and in parallel arrangement is/are arranged on a position, close to an evaporator, of a conveying pipeline used for connecting a condenser with the evaporator; the conducting direction of the refrigeration one-way valve device(s) points to the condenser. The improved variable frequency air conditioner is characterized in that a variable flow throttling device is arranged on a position, close to the condenser, of a conveying pipeline used for connecting the refrigeration one-way valve device(s) with the condenser. According to the invention, the refrigeration one-way valve device(s) is/are arranged on one end close to the evaporator, so that the energy efficiency ratio of refrigeration of the variable frequency air conditioner can be effectively improved; a heating throttling element is arranged on one end close to the condenser, so that the energy efficiency ratio of heating of the variable frequency air conditioner can be effectively improved. The improved variable frequency air conditioner is capable of effectively improving the year-round energy efficiency ratio of the variable frequency air conditioner, and bringing an unexpected effect.

The invention relates to an air source heat pump and water pump linkage control method and system and electronic equipment. The method comprises the steps: detecting the temperature difference of supply water and return water of all air source heat pumps which are started to operate, and for any air source heat pump, if the temperature difference of the supply water and the return water is within a preset temperature change range, keeping the current running states of the air source heat pump and the matched water pump; otherwise, adjusting the operation frequency of the water pump matched with the air source heat pump according to a preset rule till the temperature difference between the supply water and the return water is within the preset temperature change range, and therefore linkage control over the air source heat pump and the water pump is achieved. According to the technical scheme, due to the fact that the operation frequency of the matched water pump is intelligently adjusted according to the temperature difference of the supply water and the return water of the air source heat pump, system energy consumption can be effectively reduced, system operation cost is reduced, and the heating energy efficiency ratio of the system is increased.