34results about How to "Reduce system efficiency" patented technology

The invention relates to a solar heating heat-accumulating system, comprising a solar thermal collector (1), a heat accumulator (2), a circulating pump (4), heating terminals (5), an expansion pot (6), a heat accumulator inlet valve (7) and a bypass valve (8). The system uses closed cycle; the outlet of the solar thermal collector (1) is connected with the heat accumulator (2) which is connected with the heating terminals (5) in series; the outlets of heating terminals (5) are provided with the circulating pump (4); a bypass is arranged between the solar thermal collector (1) and the heat accumulator (2) and is provided with the bypass valve (8) thereon; the expansion pot (6) is arranged on a pipeline; the structure of the heat accumulator (2) is in the mode of a heat exchanger, and hot water is not directly contacted with heat accumulating materials; the heat accumulator (2) is a square box or a cylindric pot, the box is filled with the heat accumulating materials (3), finned tubes (9) are arranged between the heat accumulating materials (3), and water can flow through the finned tubes (9) to exchange heat with the heat accumulating materials (3).

The invention discloses a flywheel energy storage system. The flywheel energy storage system comprises a magnetic resistance motor of a disk-shaped structure, a vertically arranged shaft, a flywheel and a magnetic levitation bearing, wherein the flywheel is mounted on the magnetic resistance motor and the shaft in a matched manner and is used for storing energy, and the magnetic levitation bearing is matched with the shaft. The flywheel energy storage system can overcome the defects of large occupied size, high input cost, low system efficiency, short flywheel standby time and the like of the prior art and has the advantages of small occupied size, low input cost, high system efficiency and long flywheel standby time.

The invention belongs to the field of all-vanadium redox flow battery electrolytes for maintaining high performance of the electrolytes, and discloses an all-vanadium redox flow battery electrolyte formula and process for maintaining high performance of an electrolyte. The raw material vanadium and the content of a C element in the electrolyte production process are limited, and the content of theC element after the organic C element-containing vanadium raw material is completely dissolved to form the electrolyte is limited. The contents of the organic C element of the positive and negative electrodes are respectively limited. According to the invention, the content of the organic C element in the system electrolyte is properly released and controlled, so that the cost of the electrolyteproduction process is reduced, the problems of over-high system maintenance frequency, high maintenance cost and the like caused by over-high content of the C element are solved, the content of the Celement in the electrolyte can be effectively controlled, the system efficiency is maintained, and the electrolyte cost is greatly reduced.

The invention relates to a structure of a carbon dioxide refrigeration device, which is composed of a carbon dioxide compressor, an evaporator, a throttle valve and a condenser. One end is connected to the evaporator, the other end of the evaporator is connected to the air inlet of the carbon dioxide compressor, the evaporator is installed in the cold storage body, and the condenser is installed underground. The invention improves the structure of a common carbon dioxide refrigeration device, can use a single refrigerant carbon dioxide, and has a wide application range, safety and controllability, high efficiency and energy saving carbon dioxide refrigeration device structure.

The invention belongs to the technical field of integrated circuits, in particular relates to a clock frequency selection circuit suitable for a switching power converter. The clock frequency selection circuit comprises two comparators, a finite state machine (FSM) and two multiplexers. The clock frequency selection circuit is applied to a switching power direct-current (DC) / DC converter, and hasthe advantages that the comparators are not required to increase and the encoding of the FSM is modified only so that multiple alternative frequencies can be selected freely, thus reducing the statical power consumption of a system and improving the system efficiency of the switching power converter.

The invention discloses a heat exchange system, comprising a refrigeration layer (1), a cold storage layer (2), a cooling channel (4) and a device (5) to be cooled, wherein the refrigeration layer (1) and the cold storage layer (2) are both arranged below the device (5) to be cooled, the cold storage layer (2) is arranged above the refrigeration layer (1), the outer side of the cold storage layer (2) is provided with a heat-insulation layer (3), and the cooling channel (4) is arranged in the device (5) to be cooled and is connected with the cold storage layer (2). According to the invention, the remained energy of the heat exchange system per se is used as energy to be consumed for refrigeration, an airflow is generated by virtue of the effect that gas is heated to expand and rise, so that conveying equipment is omitted, the consumed electric energy is reduced greatly, and the cold storage layer is arranged so that refrigeration equipment is unnecessary to start and stop frequently and thus is prolonged in service life.

The invention is suitable for the field of integrated circuits and provides a power compensation circuit and a power supply chip of a switching power supply. The power compensation circuit comprises a sampling logic unit, a sampling retaining unit, an operational amplification unit, an energy accumulation unit, a comparator and a clamping unit, wherein the sampling logic unit is used for generating a sampling control signal according to a logic control signal; the sampling retaining unit is used for outputting a sampling processing unit according to the sampling control signal; the operational amplification unit is used for outputting an error amplification signal according to the sampling processing signal and a reference signal; the energy accumulation unit is used for charging and discharging according to the error amplification signal so as to adjust the voltage of the error amplification signal; the comparator is used for comparing a sampling voltage with the adjusted error amplification signal and outputting a compensation control signal so as to compensate peak current of a primary inductor and further compensate power; and the clamping unit is used for clamping the error compensation signal. In the invention, the peak current of the primary inductor is controlled through a negative feedback loop, and the loop gain is increased, thus the sampling time point is precisely optimized, and the output power is compensated on the basis that chip pins are not additionally increased and system efficiency is reduced.

The invention belongs to the field of an all-vanadium redox flow battery electrolyte for maintaining the high performance of the electrolyte, and discloses a formula and a process for an all-vanadium redox flow battery electrolyte for maintaining the high performance of the electrolyte. Limit the C element content in the raw material vanadium and electrolyte production process, and limit the C element content after the organic C element vanadium raw material is completely dissolved to form an electrolyte. The contents of organic C elements in the positive and negative electrodes are respectively limited. The present invention properly releases and controls the organic C element content in the system electrolyte, reduces the cost of the electrolyte production process, solves the problems of high system maintenance frequency and high maintenance cost caused by excessive C element content, and can effectively control electrolysis. The content of C element in the liquid can maintain the system efficiency and greatly reduce the cost of the electrolyte.

The invention discloses a multi-temperature refrigerator based on a non-azeotropic working medium with a large slip temperature, including a compressor, an air-cooled condenser, a first heat exchanger, a second heat exchanger, a dry filter, a capillary tube, and a first evaporator , the first electric regulating valve, the first gas-liquid separator, the second evaporator, the second electric regulating valve, the third evaporator, the third electric regulating valve, the fourth evaporator, the fourth electric regulating valve and the second gas Liquid separator; the outlet port of the first evaporator is connected with the inlet port of the first gas-liquid separator, the outlet port of the fourth evaporator is connected with the second inlet port of the first heat exchanger, and the second inlet port of the first heat exchanger Two outlet ports are connected with the inlet port of the second gas-liquid separator; the second outlet port of the first gas-liquid separator is connected with the second inlet port of the second heat exchanger, and the second outlet port of the second heat exchanger is connected with the second outlet port of the second heat exchanger. The inlet end of the second gas-liquid separator is connected. The multi-temperature refrigerator solves the problems of large irreversible loss in a single cycle and inaccurate temperature control.

The invention relates to a solar heating heat-accumulating system, comprising a solar thermal collector (1), a heat accumulator (2), a circulating pump (4), heating terminals (5), an expansion pot (6), a heat accumulator inlet valve (7) and a bypass valve (8). The system uses closed cycle; the outlet of the solar thermal collector (1) is connected with the heat accumulator (2) which is connected with the heating terminals (5) in series; the outlets of heating terminals (5) are provided with the circulating pump (4); a bypass is arranged between the solar thermal collector (1) and the heat accumulator (2) and is provided with the bypass valve (8) thereon; the expansion pot (6) is arranged on a pipeline; the structure of the heat accumulator (2) is in the mode of a heat exchanger, and hot water is not directly contacted with heat accumulating materials; the heat accumulator (2) is a square box or a cylindric pot, the box is filled with the heat accumulating materials (3), finned tubes (9) are arranged between the heat accumulating materials (3), and water can flow through the finned tubes (9) to exchange heat with the heat accumulating materials (3).

The invention belongs to the technical field of water treatment and discloses a suspension type distillation device based on a nanomaterial and solar energy. The distillation device comprises an uncovered water tank, a water tank cover, nano cloth and a water collection component, wherein a liquid storage tank is arranged below the uncovered water tank; the water tank cover is arranged on the uncovered water tank; part of the nano cloth is fit with the lower side of the water tank cover; part of the nano cloth is immersed in liquid in the liquid storage tank; the water collection component comprises a condensate tank; the condensate tank is an open hollow structure and is suspended on the liquid in the liquid storage tank; and a capillary structure is arranged on the surface on one side, facing towards the water tank cover, of the condensate tank. The device can achieve heat exchange of steam and water to be evaporated on the basis that a solar energy resource is made full use of; condensate water is absorbed and transported quickly by a capillary action at the same time; the scattering of sunlight by the condensate water is effectively avoided; and a utilization ratio of the solarenergy is further increased on the basis that the efficiency of water purification treatment is significantly improved.

The invention provides a combined long-term stable operation ammonium chloride method zinc electrolysis process flow. The flow comprises leaching, purification, an electrolysis main flow and an ultra-impurity raw material circulation coarse washing, excessive calcium and magnesium precipitation and oxidation impurity filtration auxiliary flow, and the two flows are arranged and connected in parallel, can work independently and do not influence each other. According to the flow, the stability of the quality of an electrolyte is controlled through the cooperation of main and auxiliary flows and through the whole flow, temperature control, compact parallel-series layout, multiple working sections, synchronization / asynchronism and multiple means, the multi-element interference brought by complex raw materials is solved, especially the problem of long-period stable and efficient operation of ammonium chloride method zinc electrolysis is solved, and the flow has positive environmental protection and economic significance in treatment of high-fluorine-chlorine and high-impurity zinc-containing raw materials through an ammonia method, and environmental protection and resource recycling of secondary zinc resources such as zinc-containing steel, metallurgical smoke and the like.

The invention discloses a timer event processing method and device, used for solving the problems of being low in system efficiency and high in power consumption due to frequent Timer events of a system. The method comprises the following steps: determining the expectant expiration time and the maximum allowance delay time of a first timer event, and determining a time interval determined by the expectant expiration time and the maximum allowance delay time; if determining that the timer event, the expiration time of which is within the time interval, exists in an event list, selecting a second timer event, the expiration time of which is within the time interval, in the event list, and setting the expiration time of the first timer event as the expiration time of the second timer event; and adding the first timer event into the event list according to the set expiration time.

The invention provides a 1Mhz self-Q-switched pulse laser oscillator, which belongs to the technical field of laser. The problems that the saturable absorber in the existing passive Q-switched technology is easy to damage, the loss in the resonant cavity is large, and the output power and efficiency are low are solved. The laser oscillator comprises a pump light source and a resonant cavity, the pump light source enters the resonant cavity, the resonant cavity sequentially comprises a plane-concave mirror and a plane output mirror along a light path, and a gain medium is arranged between the plane-concave mirror and the plane output mirror. The self-Q-switched pulse laser oscillator is mainly used for self-Q-switched pulses.

The invention discloses a downhole oil-submerged diaphragm pump. An electromotor rotates to drive a conic small gear and a conic large gear to rotate through a coupling and a transmission shaft. A reducing mechanism is formed by the two conic gears. After power is decelerated and converted through the reducing mechanism, an eccentric shaft is driven to drive a connecting rod plunger to do reciprocating motion, and rotating motion of the electromotor is converted into the reciprocating linear motion of the connecting rod plunger; when the connecting rod plunger does up-and-down reciprocating linear motion, hydraulic oil is pushed for pressure increase, and a diaphragm transmits pressure to a working medium of a diaphragm cavity; and a drain valve is opened when the working medium is pressed, the medium is drained, meanwhile, a liquid inlet valve assembly is closed, and suction and drainage of the working medium are achieved in a reciprocating manner in this way. Intelligent, efficient, energy-saving, safe and reliable continuous oil extraction can be achieved in a low-yield well with complex well conditions.

Belonging to the technical field of water treatment, the invention discloses a capillary action-based solar distiller for collecting condensate water. The solar distiller comprises one or more solar distiller substructures superimposed vertically in order. Specifically, single solar distiller substructure comprises a bottom uncovered water tank, water collecting tanks, a condensation plate and a water storage baffle plate. The bottom uncovered water tank contains a liquid storage tank, and the condensation plate comprises a condensation surface and vertical droplet surfaces. The solar distiller provided by the invention can realize multi-stage utilization of water vapor waste heat on the basis of full utilization of solar energy resources, and at the same time can achieve fast absorption and transportation of condensate water by capillary action and aggregation of the condensate water, and can prevent sunlight scattering by water droplets from lowering the system efficiency, thus further enhancing the solar energy utilization on the basis of remarkably improving the water purification treatment efficiency. Moreover, the solar distiller also has the advantages of more compact structure, convenient operation, stronger environmental adaptability, low water purification cost, etc.

Electrodeless high intensity discharge (HID) lamps have the promise of higher reliability and higher efficiency than traditional electroded high intensity discharge lamps. However, most electrodelessHIDs operate in the frequency range of around 400 MHz or higher resulting in expensive, inefficient RF drivers that reduce the overall efficacy of the lamp. Operating the lamp at lower frequencies results in a substantial increase in the physical dimensions of the resonators used in the traditional electrodeless HIDs. In this invention a novel wave-launcher technology is used to allow the lamp housing's operating frequency to be independent of the physical dimensions of the lamp housing. This provides an avenue to increase the conversion efficiency of the RF driver and the efficacy of the lampsystem.

The invention provides a self-excitation-reinforcing high-voltage conversion system of a switch reluctance generator. The system is composed of three conversion branches and an isolation and voltage-down DC / DC converter. The input ends of the three conversion branches are connected in parallel, the output ends of the three conversion branches are connected in series, thus, higher voltage output isobtained, excitation reinforced parts are distributed in all the conversion branches where all phases of windings are located respectively, independent excitation power sources are omitted, the system reliability is improved, and the advantages of a switch reluctance motor are effectively utilized. As input end voltages are far lower than output end series total voltages, voltage withstanding ofinternal devices is low, meanwhile, the switching frequency of all switching tubes is within a low-and-medium frequency range, and losses are low. The system is very suitable for converters of all switch reluctance generators, and especially is oriented to high-voltage loads or grid-connection requirements.

The invention discloses a semi-solid lithium cathode suspension based on nickel-cobalt lithium manganese oxide / carbon nanotube composite material, which is used to improve the contradiction between the conductivity and fluidity of the suspension in a semi-solid lithium ion flow battery, and Improving the electrochemical performance of semi-solid lithium-ion flow batteries. As a high-performance conductive agent, carbon nanotubes are easier to form a conductive network than traditional carbon black conductive agents, but when directly added to the suspension, the viscosity of the suspension will increase significantly, increasing the pump work and reducing the efficiency of the battery system. Combining carbon nanotubes with lithium ion active materials can enhance the conductivity of the suspension while reducing the increase in viscosity, and can bring about many improvements in electrochemical performance.