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2260 results about "Heat power" patented technology

Cooking control method of electric rice cooker

The invention discloses a cooking control method of an electric rice cooker. The electric rice cooker comprises a cooker body, an inner container arranged in the cooker body, an upper cover, a heating device, a bottom temperature measurer, an upper cover temperature measurer and a control device used for controlling rice cooking work and arranged on the cooker body, wherein the control device comprises a main controller as well as a first timer, a second timer, a rice-water volume level storage, a temperature storage, a time storage and a heating power storage which are respectively connected with the main controller, and a plurality of powers are preset in the heat power storage. A method for controlling the rice cooking of the electric rice cooker by the control device comprises a heating stage, a boiling stage and a cooking stage. The control device controls the heating device to heat until boiling by using gradually reduced powers. In the invention, the gradually reduced powers are adopted for heating unit boiling at the heating stage, and meanwhile, a boiling state is judged according to the bottom temperature, thus, not only is the problem that a small amount of rice is easy to overflow and be ebullient avoided, but also a large amount of rice can be sufficiently heated to reach the boiling state, and the heating time is effectively controlled.
Owner:FOSHAN SHUNDE MIDEA ELECTRICAL HEATING APPLIANCES MFG CO LTD

Electric conduction-stirring friction composite heat power supply welding method and equipment

The invention discloses a conducting-stirring friction hybrid heat source welding method and a piece of equipment, wherein, in stirring friction welding, a stir head and a workpiece are simultaneously insulated from the main body of a welding machine, the clamp of a fixed workpiece and a worktable, current is galvanized in the weld seam direction of the workpiece, the current and the weld seam through which the current flows produce resistance heat with the contact resistance of a friction stirring welding area, and the resistance heat together with stirring friction heat forms the hybrid heat source of the stirring friction welding. The method and the equipment of the invention have the following remarkable effects: 1. the limitation of the stirring friction welding on welding materials is broken through, leading the stirring friction welding to be used for welding such structural materials as black ferrous metals, superalloy, and the like; 2. the service life of the stir head can be improved; and 3. welding speed and welding quality can be further improved, thus improving the mechanical property of a welding joint. The method and the equipment of the invention can be used for the stirring friction welding, the preheating before welding, and the postweld heat treatment of such structural materials as carbon steel, stainless steel, and superalloy, etc.
Owner:罗键

Paraboloid trough type solar heat-collector auxiliary coal-burning boiler mixing heat power generation system

The invention belongs to the generating equipment scope and in particular relates to a mixed heat power generating system with a paraboloid groove type solar heat collector to assist a coal burning boiler. A solar heat collector field is connected with a feed pump and a second or a third high-pressure heater; a condenser, an extraction pump, a low-pressure heater, a deaerator, the feed pump, the high-pressure heater, the coal burning boiler and a steam turbine are connected in series in turn; and the steam turbine drives a dynamo and discharges steam to the condenser. Condensed water flows out from the condenser and is heated up and pressurized up by a the low-pressure heater, deoxidized by the deaerator, fed with water by a leading-out part of the feed pump and enters the solar heat collector field for heat absorption; after reaching a stream drawing parameter of a certain stage high-pressure heater, the condensed water returns and joins the drawing gas of the corresponding stage heater; the other part of feeding water enters the coal burning boiler through the high-pressure heater and becomes steam with high temperature and high pressure; and the steam enters the stream turbine, applies work and flows into the condenser to complete a thermodynamic cycle. The mixed heat power generating system with the paraboloid groove type solar heat collector to assist the coal burning boiler reduces coal consumption of a coal burning unit, improves thermal efficiency of the solar heat power generation and reduces the investment on the simple paraboloid groove type solar heat power generation.
Owner:NORTH CHINA ELECTRIC POWER UNIV (BAODING)

Control method and device of electric water heater and electric water heater

The invention discloses a control method and device of an electric water heater and an electric water heater. The control method comprises the steps of obtaining the outlet water temperature, inlet water flow and inlet water temperature of the electric water heater at a current sampling time point, judging whether the outlet water temperature is up to the heating temperature set by a user or not, calculating the deviation control amount of the outlet water temperature at the current sampling time point and obtaining corresponding heat power gears according to the deviation control amount of the outlet water temperature, the inlet water flow and the inlet water temperature if the heating temperature set by the user is not reached, obtaining the heating power of the electric water heater at a previous current sampling time point adjacent to the current sampling time point, adjusting the heating power according to the heat power gears and controlling the electric water heater according to the adjusted heating power. By means of the control method, the corresponding heating power is adjusted according to the outlet water temperature, the inlet water flow and the inlet water temperature corresponding to the electric water heater, resource waste caused by heating at fixed heating power is avoided, and energy is saved.
Owner:WUHU MIDEA SMART KITCHEN APPLIANCE MFG CO LTD

Graphene based transparent electric heating film and production method thereof

ActiveCN102883486AGood defogging and defrosting functionsGuaranteed defogging and defrosting functionsTransparent/reflecting heating arrangementsElectricityHigh volume manufacturing
The invention relates to a graphene based transparent electric heating film and a production method thereof. The graphene based transparent electric heating film comprises a transparent flexible substrate, a graphene film is arranged on the transparent flexible substrate, a conductive connection mesh film is arranged on the graphene film and provided with electrodes which are electrically connected with the conductive connection mesh film and the graphene film. The electrodes are provided with protective layers covering the electrodes as well as covering the graphene film and the conductive connection mesh film. The graphene transparent electric heating film is suitable for large-scale production, labor cost is greatly reduced, and meanwhile, product stability is improved and the graphene based transparent electric heating film has the advantages of uniformity in heating, high transparency, good flexibility, low cost and good stability. Besides, heating power of the transparent electric heating film can be designed according to practical needs, heating curves can be designed according to service needs, and the heating film is guaranteed to have demisting and defrosting functions. Simultaneously, brittle cracking of glass due to sudden change of temperature is avoided. The graphene based transparent electric heating film is wide in application range, stable and reliable.
Owner:中科芯未来微电子科技成都有限公司

Automobile heating and heat exchange system capable of intelligently starting electric heating device

The invention provides an automobile capable of intelligently starting an electric heating device. The automobile comprises a heater, a water tank, a heat exchange device and the electric heating device, wherein the heat exchange device is connected between the heater and the water tank; water in the water tank enters the heat exchange device through an inlet pipeline of the heat exchange device, is heated in the heater and then enters the water tank through an outlet pipeline of the heat exchange device; the water tank is internally provided with a temperature sensor, and the temperature sensor is used for measuring the temperature of the water in the water tank; the temperature sensor, the electric heating device and a controller are in data connection; when the heater works, the controller controls starting and/or heating power of the electric heating device according to the water temperature measured by the temperature sensor. According to the automobile provided by the invention, by intelligently starting the electric heating device, constant temperature for heating the water tank is ensured, normal running of the electric heating device is ensured, and an automobile heating and heat exchange system is suitable for being used by various large-scale electric vehicles.
Owner:朝阳朗瑞车辆技术有限公司

Electric automobile heat-pump air-conditioning system

An air conditioning system of the dynamoelectric automotive heat pump belongs to the field of the heat pump system structure. The invention contains the compressor, the four-through valve, the first unilateralism valve, the inner condensator, the F type heating power inflatable valve, the second unilateralism valve, the outer condensator, the first ending valve, the second ending valve, the H type heat power inflatable valve, the inner evaporator and the gas and liquid segregator. The exit of the compressor connects with the intake of the four-through valve. Two exits of the four-through valve separately connect with the intake of the first unilateralism valve and the inner condensator. The exit of the first unilateralism valve connects with the intake of the outer condensator. The exit of the inner condensator connects with the intake of the F type heating power inflatable valve. The exit of the F type heating power inflatable valve connects with the intake of the second unilateralism valve. The exit of the second unilateralism valve connects with the intake of the outer condensator. The exits of the outer condensator connect separately with the intakes of the first ending valve and the second ending valve. The exit of the first ending valve connects with the intake of the gas and liquid segregator. The structure of the invention is easy.
Owner:SHANGHAI JIAO TONG UNIV

Residual heat reclaiming method, residual heat reclaiming system and used working fluid of absorption liquid

The invention discloses an absorption-type residual heat power generation or heat acquisition and drive power using method under condition of a low-temperature heat source. The invention also relates to an absorption-type residual heat reclaiming system and a used gas-salt working fluid. The low-temperature heat source obtained from industrial waste heat is used as a heating working medium so that a working fluid of absorption liquid consisting of a salt absorbent and ammonia gas or carbon dioxide absorbed agent from an absorber forms an absorbent and a high-pressure overheated absorbed agent in a regenerator through the heat exchange process under the heating condition; the gasified overheated absorbed agent enters a turbine machine to provide energy for producing power through a turbine expansion step; the produced power can directly drive a power generating unit for power generation or connection with other power drive equipment for providing the needed power; and the produced power can be also used as a heat source and is transported to heat exchange equipment for heating. The low pressure absorbed agent completing the heat release process is exhausted from the turbine step, returns the absorption step and is re-contacted with the absorbent from the regeneration step to form the absorption liquid; and the absorption liquid reenters the next thermodynamic circulation process.
Owner:谷俊杰 +4

Auxialary electric heating apparatus for automobile and auxialary electric heating method for automobile

The invention relates to an auxiliary electric heating device used for a vehicle and an auxiliary electric heating method for a vehicle, which comprises a switch part that comprises one or a plurality of switch units and is used for opening and closing a battery voltage by carrying out a switch operation according to a PWM signal; a heater part that comprises one or a plurality of heater units which is connected with the switch units; a current detecting part that detects the current flowing through the heater part; a control part that compares the voltage information of the battery voltage being received with a reference voltage, wherein, if the voltage information is lower than the reference voltage, heating power proportionate to the battery voltage is set as target power, whereas the voltage information is higher than the reference voltage, and preset maximum heating power is set as the target power so as to generate the PWM signal with a PWM duty cycle relative to the set target power and to impose to the switch unit. According to the detecting current of the current detecting part, consumed power actually being consumed is calculated, and the PWM duty cycle of the PWM signalis regulated according to the calculated consumed power and the target power.
Owner:摩丁韩国公司

Combined cooling heating and power system for thermal energy gradient utilization

The invention discloses a combined cooling heating and power system for thermal energy gradient utilization and belongs to the technical field of energy. The combined cooling heating and power system for thermal energy gradient utilization comprises a steam Rankine cycle loop subsystem, an organic Rankine cycle loop subsystem and an absorption refrigeration circulation loop subsystem, wherein a first generator of a first expander of the steam Rankine cycle loop subsystem is driven to generate; dead steam or extraction steam in an outlet is divided into two paths, respectively working as a heat source for the organic Rankine cycle loop subsystem and the absorption refrigeration circulation loop subsystem; and energy gradient utilization can be achieved, so energy utilization rate can be improved. The steam Rankine cycle loop subsystem can provide power, the organic Rankine cycle loop subsystem can provide power electricity and daily use hot water and the absorption refrigeration circulation loop subsystem can provide cold water for air conditioners in summer and hot water for radiation type tail end air conditioners in winter. The system can achieve combined heat and power generation or combined cold and heat power generation via a valve according to user needs; and the combined cooling heating and power system for thermal energy gradient utilization is flexible, reliable, energy-saving and practical.
Owner:宝莲华新能源技术(上海)股份有限公司 +1

Intelligent on-vehicle mobile type phase-change heat storage and supply system

The invention discloses an intelligent on-vehicle mobile type phase-change heat storage and supply system. The system comprises a tractor and a phase-change heat storage and exchange device, wherein the phase-change heat storage and exchange device is fixedly arranged on the tractor, and comprises a box body; a box body water temperature gauge and a phase-change heat storage material temperature gauge are arranged on the back wall of the box body; a heating pipe group, a cold water inlet pipe, a phase-change heat storage component and a hot water outlet pipe are arranged in the box body in turn from bottom to top; and a bottom water outlet of the box body and the hot water outlet pipe on the upper part of the box body are connected to a same water main through pipelines. The intelligent on-vehicle mobile type phase-change heat storage and supply system provides hot water supply and heating services for heat energy users by using residual heat or waste heat discharged in the form of steam by high energy consumption units such as heat power plants, iron and steel works and the like, and has the characteristics of simple and compact integral structure, high space utilization ratio, high energy storage density, high heat exchange efficiency, intelligent control, stable, safe and reliable operation, convenience for maintenance and operation management and the like.
Owner:SHANDONG ZHONGYINENG ENERGY SAVING & ENVIRONMENT PROTECTION TECH CO LTD
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