107results about How to "To save energy" patented technology

The invention provides lift energy feedback, reactive compensation and switched-off emergency running method and system. The system comprises an energy feedback module, a reactive compensation module and a lift switched-off emergency running module. The energy feedback module comprising an inverted circuit, a control circuit and a filter circuit and the reactive compensation module can feed back energy generated when a lift brakes to a power grid and generate reactive current for compensating reactive power when the lift is in an electric running state; and a lift switched-off emergency running circuit can ensure that lift control power is taken over by the switching of a switch under abnormal power supply of the power grid, run the lift to the leveling position and open a car door and a hall door so that a passenger safely walks out of the lift. The system has the advantages of simple structure, reliable running, less loss, low cost, high power factor and no harmonic pollution on the power grid and integrates various functions of lift frequency converter plug-in type energy feedback, reactive compensation, emergency leveling, and the like.

An automatic classification trash can comprises a can cover and a can body. A trash inlet is arranged between one side of the trash cover and the trash body. A stirring breaking area, a big article withdrawing area, a filtering area, a sorting area, a trash classifying storage area and a control system are arranged in the can body of the trash can. The control system is arranged on a portion, above a power source, of a can wall and is respectively connected with a spindle motor of the stirring breaking area, a spindle motor of the big article withdrawing area, a spindle motor of the filtering area and a spindle motor of the sorting area. According to the automatic classification trash can, energy conservation and environmental protection can be achieved. When mixed garbage such as metal, plastic, glass, paper and household garbage are irregularly packed through garbage bags and are thrown to the trash inlet of the automatic classification trash can, the trash can automatically starts and runs to carry out classification collection, and the purposes of energy conservation and environmental protection can be achieved.

The invention discloses an intelligent energy-saving air handling system for an operation room. The intelligent energy-saving air handling system comprises an air handling unit (1), an electric heating unit (5) and a noise elimination static pressure tank group which are sequentially connected through an air pipe, the air handling unit (1) is used for filtering outdoor fresh air (2) and indoor fresh air (3), the electric heating unit (5) is an air duct type electric heater and arranged on an outlet air output pipeline of the air handling unit (1) and used for electrically heating outputted air, the noise elimination static pressure tank group includes a first noise elimination static pressure tank (6) and a second noise elimination static pressure tank (7) which are connected by a plurality of circulating fan (4) parallel pipelines, and the electrically heated fresh air and return air subjected to noise elimination by the noise elimination static pressure tank group are mixed by a three-way valve, heated, sterilized and inputted to the operation room through an air supply static pressure tank (9) arranged at the top of the intelligent operation room. According to the intelligent energy-saving air handling system for the operation room, energy is saved by more than 50%.

The invention discloses a refrigerator energy-conservation control method and a refrigerator. Adjustment of a refrigerator energy-conservation mode is achieved through an electronic temperature control way, so that tediousness of manual operation and installation and usage of a mechanical switch are avoided. The refrigerator energy-conservation control method comprises the steps that an induction signal output by a temperature sensor is received; whether a door body of the refrigerator is opened or not is judged based on the induction signal; if yes, door opening information is recorded, and the operating time period and the non-operating time period of the refrigerator are analyzed based on the door opening information; and the refrigerator is controlled to be adjusted to the energy-conservation mode in the non-operating time period. Opening of the door body is judged through the change, induced by the temperature sensor, of the temperature in a box body of the refrigerator, , so that energy-conservation arrangement of the refrigerator in the non-operating time period is achieved through the electronic temperature control way.

The invention provides a power supply allocation method of a blade server. The method comprises the following steps: a management module detects the working state of a blade in the blade server; when the blade is detected in a starting state or a started state, the management module acquires power supply requirement information of the blade; and the management module indicates the power supply in the blade server to perform power supply allocation on the blade according to the power supply requirement information. By the power supply allocation of the blade server, faults of the blade happening in the starting process are avoided, and the aim of saving energy is achieved, and the startup scheme is more flexible.

The invention relates to a novel method for improving fruit and vegetable unfreezing quality. According to the invention, ultrasonic waves are adopted for assisting in freezing in the quick freezing process of quick-frozen fruits and vegetables. The method comprises the steps of selecting, cleaning, cutting, bleaching and heating for inactivation of enzyme, cooling, freezing, freezing with the assistance of the ultrasonic waves, and packing fruits and vegetables as raw materials. According to the invention, the technology of treatment with the combination of the ultrasonic waves is adopted in the fruit and vegetable immersing and freezing process, thus the fruit and vegetable unfreezing quality is improved; and the novel method has the characteristics of shortening of freezing time, good keeping of initial shape, low operation cost and the like.

The invention aims to provide an energy-saving steam generation device with an adaptive water supply function and low cost, and a control method thereof. The steam generation device comprises a shunt valve, a return pipe, at least one heating pipe, a steam-water separator and a control circuit, wherein the heating pipe is arranged between the steam-water separator and the shunt valve; a water inlet is reserved in the shunt valve; a one-way valve for controlling fluids to flow to the heating pipe from the water inlet is also arranged in the shunt valve; and the heating pipe comprises at least one intermittent-heating pipe I. The invention also discloses a household electric steam box comprising the steam generation device. The household electric steam box has the advantages of energy saving, adaptive water supply, low cost, no need of seal between a water storage tank and the steam-water separator, convenient design of appearance and internal structure, and convenient use.

The invention discloses a multifunctional door and window profile with ventilation, noise elimination and heat resistance functions, which comprises a profile body, wherein the profile body is provided with a wind inlet communicated with outdoor air and a wind outlet communicated with indoor air; a ventilating channel communicated with the outdoor air and the indoor air is formed in cavities of the wind inlet, the wind outlet and the profile body; the ventilating channel is internally provided with an air door and a sound absorption module; and the profile body is internally provided with a heat insulating bridge formed by a heat insulating module. The profile body is provided with the wind inlet and the wind outlet which are communicated with the outdoor air and the indoor air so that the door and window profile has the function of ventilation; meanwhile, the profile body is internally provided with a rotatable air door; the air inlet quantity is controlled by adjusting the open degree of the air door; the profile body is also internally provided with the sound absorption module and the heat insulating module; and the ventilating quantity and requirements of people for indoor noise reduction and heat insulation are also met. The multifunctional door and window profile has the advantages of simple structure, low cost and attractive appearance.

The invention discloses a flexible hinge with double-direction variable rigidity. The flexible hinge mainly comprises a circular disc and four flexible support units which are evenly distributed along the circumference direction of the circular disc to form a parallel mechanism. Each flexible support unit comprises a support plate, a first flexible connecting rod, a connecting plate and a second flexible connecting rod. The first flexible connecting rod is arranged between the support plate and the connecting plate. The second flexible connecting rod is arranged between the connecting plate and the circular disc. Arc notches are formed in the first flexible connecting rod and the second flexible connecting rod. A fixing hole is formed in the support plate. A connecting hole is formed in the circular disc. The flexible hinge with double-direction variable rigidity improves self-adjusting capacity of a robot when the robot copes with impact generated during feet landing, and accordingly the humanoid robot can be stable and comfortable when walking.

The invention relates to the field of charging piles, and more particularly to an electric vehicle charging pile containing renewable energy. The electric vehicle charging pile comprises a photovoltaic array, a post body, a street lamp and a storage battery pack. The photovoltaic array is arranged on the top of the post body, the street lamp is arranged on the upper part of the post body, and a fixing pedestal is arranged on the bottom of the post body. The charging pile is arranged in a box body, of which the top front end is provided with a display screen, a charging plug fixing seat of the charging pile is arranged on the box body side cover of the box body, a charging plug is placed on the charging plug fixing seat and connected with a charging joint on the right end of charging pile. The storage battery pack is arranged under the ground, and the photovoltaic array and commercial power supply are connected with the storage battery pack to charge the storage battery pack. The storage battery pack is connected with the street lamp and the charging pile to provide power for the street lamp and the charging pile. A control system is connected in parallel with the output ends of the photovoltaic array, the commercial power supply and the storage battery pack and the input ends of the street lamp and the charging pile, and the control system is connected with the charging pile.

The invention discloses an energy-saving automobile. A tail lead-out port is formed in the rear portion of an automobile body and communicated with a lead-in port formed in at least one of the upper portion, the lower portion and the side of the portion, located between rear wheels and the rear portion of the automobile body, of a shell. The energy-saving automobile has the advantages that fluid passing by the automobile body when the automobile travels fast is discharged out from the lead-in port formed in at least one of the upper portion, the lower portion and the side of the portion, located between the rear wheels and the rear portion of the automobile body, of the shell to the tail lead-out port so that a rear negative pressure area can be filled with the fluid, negative pressure resistance in the traveling process of the automobile is reduced, resistance to the automobile in the traveling process is reduced, and the purpose of saving energy is achieved.

The invention discloses a kind of hard polyurethane foam and the preparation method. Said polyurethane foam comprises polyurethane raw material, which includes C-pentane foaming agent, combined polyether POL and MDI, the HFC-245fa is added into combined polyether, the adding amount is 0.5- 3% of total weight of raw material. The HFC-245fa is used as core formation agent. The invention is characterized in that it can distinctively and effectively reduce k value of PU foam, increases thermal insulation property and saves energy.

The invention relates to a compressed air grid-connected energy saving operation method of a multi-system air compression station. The lowest air supply pressures required by users under all single system air compressor sets in grid-connection operation are different; multiple systems comprise a plurality of single air compressor set systems. The method comprises the following steps: 1, setting standard pressure for the air compressor set systems; 2, determining a low flow set to be subjected to flow compensation; 3, detecting actual pressure of each system pipe network, and uploading the actual pressure; 4, calculating compensation flow; 5, calculating rich flow; 6, judging flow compensation; 7, when the judgment fails, automatically starting air compressors for compensation by the sets to be subjected to compensation; and 8, when the judgment succeeds, conveying by rich flow sets. According to the compressed air grid-connected energy saving operation method, in the grid-connected operation process of a plurality of air compression stations, the air compression stations with relatively high pressure performs compressed air flow compensation on the air compression stations with low pressure, so that the air compressors of the whole system can meet the respective operation requirements with a relatively reasonable put-into-operation amount.

The invention relates to a rotational molding mould device and a method for manufacturing a rotational molding mould and relates to the technical field of rotational molding. The device comprises upper and lower modules capable of being opened and closed, wherein a flange ring is used for sealing; the lower module is connected to a rotary bracket; and a hot oil heating pipeline and a cooling pipeline are covered outside of the lower module. The method comprises the following steps: coating de-molding agent, and then feeding materials, sealing and rotating while heating with hot oil, and after finishing the steps, using the cooling pipeline to quickly cool and de-mould. The rotational molding mould device and the method for manufacturing a rotational molding mould have the advantages that the hot oil can conduct heat, the efficiency is high, the energy is saved, and different from the traditional devices, the device is free from being limited by the volume of a heating box, the hot oil is supplied by a hot oil furnace, the temperature control is reliable and stable, and the quality of products is increased.

The invention relates to an absorber tray liquid holdup monitoring method for a wet flue gas desulfurization system. According to the absorber tray liquid holdup monitoring method for the wet flue gas desulfurization system, tray liquid holdup is monitored through cycle monitoring of liquid levels at different positions of a tray. Pressure detection holes are uniformly distributed at the bottom of the tray, each pressure detection hole is connected with a pressure sensor through a corresponding pressure detection pipeline, and an electromagnetic valve is mounted on each pressure detection pipeline. Whether each pressure detection pipeline is communicated with the pressure sensor or not is controlled through the corresponding electromagnetic valve, and a pressure of a relative position of the corresponding pressure detection hole is tested selectively or according to a certain rule. Output signals of the pressure sensor are connected with a display instrument or a monitoring system, and the display instrument or the monitoring system monitor pressure signal variation to realize monitoring of the absorber tray liquid holdup. By monitoring of tray liquid holdup variation, on the basis that sulfur dioxide reaches the standard, the tray liquid holdup is reduced, system pressure loss is reduced, and energy saving is realized.

The invention discloses a screw pump with low viscosity and high pressure. The screw pump comprises a pump body, a driving screw, a bearing and a sealing structure, wherein the driving screw, the bearing and the sealing structure are arranged in the pump body. A driven screw is further arranged in the pump body. The bearing and the sealing structure are arranged on the driving screw in a sleeving manner. A pump cavity is formed in the pump body, and a bushing is arranged in the pump cavity in the axial direction. The driving screw and the driven screw are arranged in the bushing which is provided with matching holes. The side wall of the driven screw is in engaged fit with the side wall of the driving screw, and the two ends of the side wall of the driven screw are connected with the top inner wall and the bottom inner wall of the pump cavity correspondingly. The bottom of the driving screw is arranged over the bottom inner wall of the pump cavity. The screw pump with low viscosity and high pressure is simple in structure, small in size, compact in layout, convenient to install, durable, resistant to abrasion, high in pressure and low in internal leakage of flow, the abrasion resistance and durability of the engaged screw pair and the surface of the inner wall of the bushing can be effectively enhanced, power energy consumption can be reduced, and the service life can be prolonged.

The invention provides an energy-saving system of a hot-blast heater for drying tea leaves and a using method. A smoke outlet is formed in the top of a combustion furnace, and is connected with a smoke inlet of a waste heat exchange box through a smoke return pipe, a smoke discharge pipe is installed at the top of the other side of the waste heat exchange box, an air inlet pipe is installed at oneside of the bottom of the front side wall of the waste heat exchange box, an air blower is installed at the other end of the air inlet pipe, an air outlet pipe is installed at the other side of the bottom of the front side wall of the waste heat exchange box, and communicates with an air supply port of the combustion furnace, and a hot air discharge port of the combustion furnace is connected with a chain plate dryer through a hot air drying pipe. According to the energy-saving system, by repeatedly using tail gas generated in the combustion furnace, the utilization rate of energy is greatlyincreased, and energy consumption is effectively lowered.

An annular cylinder chamber (C1, C2) of a cylinder (21) is partitioned into an outer cylinder chamber (C1) and an inner cylinder chamber (C2) with an annular piston (22). The cylinder (21) is caused to eccentrically rotate by driving an electric motor (30), thereby changing the volumes of the outer cylinder chamber (C1) and the inner cylinder chamber (C2). The volume ratio Vr of the inner cylinder chamber (C2) to the outer cylinder chamber (C1) is set at about 0.7. In this state, the output torque of the electric motor (30) is changed in accordance with a variation in the load torque in one turn of rotation.

The invention relates to the field of heating and heat preservation technologies, in particular to an energy-saving heat preservation device which comprises a base, an upper cover and a sealing pad.The upper cover is arranged on the base, the sealing pad is used for sealing the base and the upper cover, the base and the upper cover comprises inner barrels, outer barrels and heat-insulation plates, the outer barrels wrap the inner barrels, the heat-insulation plates are arranged at the end surfaces of the inner barrels, and heat-insulation cavities are arranged between the inner barrels and the outer barrels.The energy-saving heat preservation device has the advantages that the energy-saving heat preservation device is compact in structure, low in heat loss and high in food braising speed and is environmentally friendly, good heat preservation effects can be realized, and energy can be saved.