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109results about How to "Avoid wasting energy" patented technology

Air conditioner heating and defrosting control method and device and air conditioner

The invention provides an air conditioner heating and defrosting control method and device and an air conditioner, which relate to the technical field of air conditioners. The control method comprisesthe steps: the air conditioner is determined to operate in a heating mode, and the outdoor environment temperature, the air outlet temperature and the outer coil temperature are obtained; whether a condition of entering a bypass defrosting mode is met or not is judged according to the outdoor environment temperature, the air outlet temperature and the outer coil temperature; and if the conditionof entering the bypass defrosting mode is met, a bypass control valve is opened, the bypass defrosting mode is started to prevent an outdoor heat exchanger from frosting, wherein the bypass control valve and a throttling assembly of the air conditioner are arranged in parallel. By arranging the bypass loop, a high-temperature refrigerant and a throttled low-temperature refrigerant are mixed, the temperature of the refrigerant entering the outdoor heat exchanger is increased step by step, the temperature of return air is increased step by step, a frost layer is melted step by step, and defrosting work is carried out under the condition that the compressor is not shut down.
Owner:NINGBO AUX ELECTRIC

Diving suit, and heating system and heating method thereof

The invention provides a diving suit, a heating system of the diving suit and a heating method of the diving suit. The heating system of the diving suit provided by the invention comprises an electric heating module, a temperature sensing module, a power supply module, a signal acquisition module and a control module, wherein the electric heating module is arranged inside the diving suit and is used for converting electric energy to heat energy; the temperature sensing module corresponds to the electric heating module and is used for measuring body surface temperatures of the corresponding position; the power supply module is electrically connected with the electric heating module and is used for providing electric energy to the electric heating module; the signal acquisition module is electrically connected with the temperature sensing module and is used for gathering the body surface temperatures; and the control module is used for controlling the power supply module to provide corresponding electric energy to the electric heating module. Due to the heating system of the diving suit provided by the invention, the heating energy and the heating temperature can be accurately regulated so as to prevent energy waste; and after a corresponding temperature value is set for the heating system of the whole diving suit, the heating work can automatically perform and the operation is convenient.
Owner:NAVY MEDICINE RES INST OF PLA

Rotary hydraulic system of excavator and control method

The invention discloses a rotary hydraulic system of an excavator and a control method. The rotary hydraulic system of the excavator comprises a variable displacement plunger pump, an electronic-control power regulator, a first pressure sensor, a pilot pump, a central control unit, a second pressure sensor, a logic shuttle valve, a pilot valve, a reversing valve, a rotary motor, a pilot overflow valve and a main overflow valve. The control method of the system comprises the following steps of presetting a set pressure value Pm and a pilot logic signal of the main overflow valve; reading a pilot signal; comparing the pilot signal with the pilot logic signal to judge whether single rotary action is carried out, if not, keeping the original power of a main pump, or else, entering the next step; reading a pressure value P of the main pump, judging whether the pressure value P is greater than or equal to the set pressure value Pm of the main overflow valve, if not, keeping the original power of the main pump, or else, entering the next step; and adjusting the power of the main pump and reducing the discharge capacity. During the single rotary action of the excavator, the rotary hydraulic system is used for adjusting the power of the main pump, so that the energy is saved by reducing the power under the premise of satisfying the normal operation.
Owner:中外合资沃得重工(中国)有限公司

Mechanical pump type SCR urea spraying system

The invention relates to a mechanical pump type SCR urea spraying system, consisting of a urea tank, a urea tank switch valve, a filter, a urea pump, an energy accumulator, a urea nozzle, a heat exchanger, a pressure regulating valve, a cooling device, and an electronic control unit. The system is characterized in that the urea pump is a mechanical pump, and the driving wheel of a diesel engine drives the transmission shaft of the urea pump through a pulley. A urea cooling device consists of the cooling device, a temperature control valve, a refrigerant inlet pipe and a refrigerant outlet pipe. The urea cooling device is arranged between the pressure regulating valve and the switch valve of the main pipeline. The energy accumulator is arranged on the pipeline between the outlet of the urea nozzle and the pressure regulating valve. The refrigerant inlet pipe of the urea cooling device is connected with the high pressure pipe of the automotive air conditioning, the refrigerant outlet pipe is connected with the low pressure pipe of the air conditioning, and the flow direction of the refrigerant fluid is opposite to the flow direction of the urea solution. The system of the invention reduces the energy consumption, and the flow rate of the urea solution is regulated in real time according to the engine speed, thereby avoiding the waste of the energy. The mechanical pump also has the advantages of low cost, long service life and is convenient to maintain.
Owner:FAW GROUP

Battery charging power system

The invention discloses a battery charging power system. The battery charging power system comprises a direct current power source, a battery module and a charging management module, wherein the charging management module comprises an input protection unit, a soft start switch unit, a DC/DC (direct-current/direct-current) conversion unit and a battery in-situ detection unit; the input protection unit is connected between the direct current power source and the soft start switch; the battery in-situ detection unit is connected with the battery module and a first control terminal of the soft start switch unit to send a first control signal to the soft start switch unit, and the soft start switch unit starts up or shuts off the DC/DC conversion unit according to the first control signal. Compared with the prior art, the charging management module comprises the input protection unit and the battery in-situ detection unit, and the input protection unit can protect the direct current power source, so that safety and reliability of the charging process are improved; the battery in-situ detection unit can detect the in-situ state of the battery module and shut off the DC/DC conversion unit when the battery module is not in the position, and accordingly, energy waste is effectively avoided.
Owner:杭州华塑科技股份有限公司

Energy-saving forklift with gravity center capable of being adjusted

The invention discloses an energy-saving forklift with the gravity center capable of being adjusted. The energy-saving forklift with the gravity center capable of being adjusted comprises a forklift body which comprises a forklift main body, wheels, a work device, a driving device and a control device; the control device is connected with the work device and the driving device which is connected with the wheels; the wheels are connected with the forklift main body and comprise a first wheel set and a second wheel set; the first wheel set is provided with a hydraulic device capable of controlling the first wheel set to ascend or descend, so that the first wheel set or the second wheel set can make contact with a road surface to run; the work device comprises a goods fork and a lifting device; the forklift main body is connected with the lifting device which is connected with the goods fork; the goods fork is provided with a telescopic device which can control the stretching and shrinking length of the goods fork; the forklift main body is provided with a balancing weight which is provided with a cavity; and a balance weight object can be placed in the cavity so that the weight of the forklift body can be changed. The energy-saving forklift with the gravity center capable of being adjusted is simple in structure, convenient and practicable, and capable of widening the using range of the forklift and improving the safety of a driver.
Owner:苏州百搭王者物流技术有限公司

Refrigeration equipment control method and system and refrigeration equipment

InactiveCN106969569AAvoid wasting energyReduce unnecessary energy consumptionDomestic refrigeratorsRefrigeration safety arrangementRefrigerantLow load
The invention provides a refrigeration equipment control method and system and refrigeration equipment. Single running time of a compressor is used as a measuring standard for working stations of the refrigeration equipment; when the running time is long, it is judged that the refrigeration equipment is in a high-load compression working station, at the moment, the compressor of the refrigeration equipment needs to provide relatively more compression refrigerant for refrigeration, and a large compression volume is needed; when the running time of the refrigeration equipment is short, it is judged that the refrigeration equipment is in a low-load compression working station, and a small compression volume is needed; when it is judged that the compressor is in the high-load or low-load compression working station, the appropriate compression volume meeting requirements can be provided, and the circumstance that energy is wasted due to the fact that the refrigeration effect is poor or excessive is avoided. According to the judgment results for the working stations of the refrigeration equipment, the turning direction of the compressor is set before next starting, meanwhile, energy waste is effectively avoided, unnecessary product energy consumption is reduced, and the product market competitiveness is improved.
Owner:HEFEI MIDEA REFRIGERATOR CO LTD +2

Emulsified liquid supply device

The invention discloses an emulsified liquid supply device. A liquid level sensor, a liquid temperature sensor and a stirring component are arranged in an emulsified liquid box; the emulsified liquid box, a liquid imbibition filter, an energy accumulator group and a working face bracket are sequentially communicated through a liquid delivery pipeline; a mechanical unloading valve and a pressure sensor are arranged on the liquid delivery pipeline; the mechanical unloading valve is further connected with a liquid return pipeline; a liquid outlet of the liquid return pipeline stretches into the emulsified liquid box; a buffer is arranged on the liquid return pipeline; a liquid return filter communicates with the working face bracket and the emulsified liquid box through a pipeline; a thermal insulation sleeve is connected onto the periphery of the emulsified liquid box in a sleeving manner and forms a backflow passage with the emulsified liquid box; and a cold and hot water supply device communicates with a water flow passage through a pipeline. The emulsified liquid supply device, disclosed by the invention, saves plenty of electric power resource and reduces the failure rate of an emulsified liquid pump and the overhaul cost; and stability of the emulsified liquid temperature ensures the usability of the emulsified liquid pump and the working stability of a hydraulic system.
Owner:安徽恒源煤电股份有限公司

Heating and ventilation equipment, control method, control device and readable storage medium

The invention provides heating and ventilation equipment, a control method, a control device and a readable storage medium. The heating and ventilation equipment comprises a heating assembly and an air exchange device. The control method comprises the steps that it is determined that the heating assembly in the heating and ventilation equipment is in an operating state, and the indoor environmenttemperature is obtained; and the working state of an air interchanger in the heating and ventilation equipment is controlled according to the indoor environment temperature. According to the method, the operation state of the air interchanger is controlled according to the obtained indoor environment temperature, the indoor temperature is adjusted through air interchange of the air interchanger inthe working process of the heating assembly, the situation that the indoor temperature is too high is avoided, and the effect of automatically adjusting the indoor temperature is achieved. Compared with the heating and ventilation equipment in the prior art, the indoor temperature can be kept within a comfortable range, a user does not need to frequently adjust and control the heating and ventilation equipment, and therefore the use experience of the user is improved.
Owner:MIDEA INTELLIGENT LIGHTING & CONTROLS TECH CO LTD

Heating jacket for medical transfusion bottle

InactiveCN104491958AAutomatic heating is convenientAvoid wasting energyIntravenous devicesMagnetAnode
The invention provides a heating jacket for a medical transfusion bottle, belongs to the technical field of medical apparatus and instruments, and solves the problem that liquid in a transfusion bottle is low in temperature. The heating jacket for the medical transfusion bottle comprises a left half sleeve and a right half sleeve which are hinged with each other, wherein the left half sleeve is provided with a first connecting part and a second connecting part, the right half sleeve is provided with a third connecting part and a fourth connecting part, the first connecting part is provided with a positive magnet block connected with the anode of a power line and the fourth connecting part is provided with a negative magnet block connected with the cathode of the power line; when the left half sleeve and the right half sleeve are connected into a sleeve body, sub heated wires in the left half sleeve and the right half sleeve are connected with each other and form a heated wire which is spirally distributed in the sleeve body, and the two ends of the heated wire are respectively connected with the anode of the power line and the cathode of the power line through the positive magnet block and the positive magnet block. Automatic heating can be realized conveniently through magnetic absorption after the absorption, the heated wire cannot be formed when the absorption is not in place, and the problem of causing energy waste because heating is not closed can be prevented.
Owner:张清

Wall-mounted washing machine and control method thereof

The invention discloses a wall-mounted washing machine and a control method thereof. The wall-mounted washing machine comprises a box, a door, an operation panel, an illuminating lamp suitable for lighting up the operation panel, a sensor, a photoresistor suitable for inducting the ambient light strength and a control assembly. The door is connected with the box to open or close the box. The operation panel is arranged on the door or the box. The illuminating lamp is arranged on the door or the box, and the brightness of the illuminating lamp is adjustable. The sensor is connected with the operation panel. The photoresistor is connected with the operation panel. The control assembly is in communication connection with the operation panel, the illuminating lamp, the sensor and the photoresistor. According to the wall-mounted washing machine, when the program of the operation panel is set, especially in a dim light environment, a user can carry out operation under illumination of the illuminating lamp, and therefore the use experience of the user can be improved, the situation that energy is wasted due to the fact that an indoor lamp is turned on can be avoided, and then the intellectuality and energy saving performance of the wall-mounted washing machine can be improved.
Owner:WUXI LITTLE SWAN ELECTRIC CO LTD

Device and method for dragging dust removal fan through industrial boiler steam

The invention discloses a device and method for dragging a dust removal fan through industrial boiler steam. The device mainly comprises a turbine, the dust removal fan, a motor and a speed change clutch. The turbine is connected with an input shaft coupler of a transmission; the clutch is arranged at the low-speed end of the transmission, the input end of the clutch is connected with a large gear of the transmission, the output end of the clutch is connected with an output shaft, and the output shaft is connected with the dust removal fan through an output shaft coupler. According to the device and method for dragging the dust removal fan through the industrial boiler steam, steam of waste heat of a boiler is used for driving the fan to remove dust, when the steam is insufficient, automatic supplement is conducted through the motor, the phenomenon that the surplus steam is diffused, so that energy is wasted and environment is polluted is avoided, a large amount of electric power is saved, and the benefits of energy conservation, emission reduction and environmental protection are achieved. In addition, when any of the turbine or the motor breaks down, normal operation of the dust removal fan and normal technological production are not influenced.
Owner:JOYI ENVIRONMENTAL PROTECTION & TECH

Defrosting device provided with variable heating power and used for air-cooling refrigerator and control method

The invention discloses a defrosting device provided with variable heating power and used for an air-cooling refrigerator and a control method. The device consists of an evaporator, two temperature acquirers, a controller, an electronic voltage regulating module, an environmental temperature and humidity acquirer and an electric heater. According to the device disclosed by the invention, a conventional electric heater is distributed at the bottom end of the evaporator, the two temperature acquirers separately cling to the surface, close to an evaporator tube, of the electric heater and the surface, away from the evaporator tube, of the electric heater, the environmental temperature and humidity acquirer is arranged in an environment, the controller transmits a voltage regulating signal tothe electronic voltage regulating module after acquiring a surface temperature signal of the evaporator tube and an environmental temperature and humidity signal on line, and the electronic voltage regulating module regulates power of the electric heater such that defrosting, by variable-power heating, of the electric heater is realized, and thus, the defrosting device can be matched with different defrosting amount and needs, on different defrosting heat, at different stages in a frost layer melting process, and avoids a condition that heat waste is caused by too high power of the electric heater or defrosting is incomplete as a result of low power of the electric heater.
Owner:XI AN JIAOTONG UNIV

Waste heat recovery system for deaerator and power plant power generation system

ActiveCN103244946AAvoid wasting energySave raw materialsLiquid degasificationFeed-water heatersProcess engineeringPlant production
The invention discloses a waste heat recovery system for a deaerator. The waste heat recovery system comprises a first leading pipe and a heater, wherein the first leading pipe is communicated with an auxiliary pipe of a continuous steam discharge pipe in the deaerator; the auxiliary pipe is provided with a fastening valve which is close to an exhaust port end of a main pipe of the continuous steam discharge pipe, and an orifice of the auxiliary pipe is close to the other end of the main pipe; the first leading pipe is disposed between the orifice and the fastening valve; and the heater is provided with a heat source working medium channel and a heated working medium channel, and the heat source working medium channel is communicated with the first leading pipe through the second leading pipe. According to the waste heat recovery system for the deaerator, waste heat of dead steam of the deaerator can be fully utilized, energy waste is avoided, and energy saving and emission reduction in power plant production are facilitated. The invention further discloses a power plant power generation system using the waste heat recovery system for the deaerator. Waste of dead steam waste heat of the deaerator can be avoided, and energy saving and emission reduction can be achieved.
Owner:HENAN CHINA RESOURCES POWER GUCHENG

Lithium battery with low-temperature self-heating function and working method thereof

PendingCN111883879AExcellent rate performance and low temperature performanceAvoid wasting energyCell electrodesSecondary cells charging/dischargingBattery management systemsPole piece
The invention relates to a lithium battery with a low-temperature self-heating function and a working method thereof. The lithium battery comprises one or two battery cells, and each battery cell comprises a plurality of positive plates, a plurality of negative plates and a plurality of diaphragms, which are alternately wound or superposed; when the lithium battery comprises one battery cell, a heating pole piece is arranged on the outer side of each battery cell; when the lithium battery comprises two battery cells, a heating pole piece is arranged between the battery cells; a temperature sensor is arranged in the battery cell, the heating pole piece is provided with a pole lug, the size of the heating pole piece is larger than that of the positive pole piece and smaller than that of thenegative pole piece, and the positive pole piece and the heating pole piece are connected through a circuit capable of controlling on-off; the heating pole piece and the negative pole piece are connected through a circuit capable of controlling on-off, and the circuit capable of controlling on-off is connected with a battery management system. According to the invention, low-temperature dischargeis satisfied, and other performances do not need to be sacrificed too much or extra cost does not need to be increased too much.
Owner:SHANGHAI YUYUAN POWER TECH CO LTD
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