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3235 results about "Heating power" patented technology

Combined system energy optimization method with consideration of wind power consumption

The invention, which belongs to the grid-connected optimization operation field of the new energy, relates to a combined system energy optimization method with consideration of wind power consumption; and thus in order to solve a wind curtailment problem, the combined system energy optimization method uses a cogeneration system based on combined operation of a wind power-electric energy storage-heat accumulating type electric boiler and takes economic optimum as an objective to reduce the wind-curtailment power effectively by increasing the load space. To be specific, the method comprises the following steps: (1), establishing an overall system framework including a conventional thermal power generating unit, a cogeneration unit, a wind turbine generator, an electric energy storage and heat accumulating type electric boiler; (2), carrying out comprehensive modeling of a cogeneration system; (3), establishing an optimal economic objective function; (4), establishing a power and heating power balancing relationship and operational constraints of all units during the operation period of the cogeneration cooperation system; and (5), carrying out optimization for active power outputs of all units. Therefore, development and utilization of the wind power are promoted; and power supply reliability of the power system is improved. The method can be applied to large-scale-wind-power-included provincial companies of all stages and has the broad application prospects.
Owner:NORTHEAST DIANLI UNIVERSITY +2

Steam generator with heating power intelligently distributed through mobile phone APP

The invention provides a steam generator which comprises a furnace body, a water tank and a water pump. An electric heating device is arranged in the furnace body. A steam outlet pipeline is arranged on the upper portion of the furnace body. The water tank is provided with an inlet pipe. The electric heating device comprises a left pipe box, a right pipe box and a floating coiled pipe. A first electric heater is arranged in the left pipe box, a second electric heater is arranged in the right pipe box, the first electric heater and the second electric heater are in data connection with a controller, the controller is connected with a cloud server, and the cloud server is connected with a client side. The measured heating power of the first electric heater and that of the second electric heater are transmitted to the cloud server through the controller and then transmitted to the client side through the cloud server, the client side is a mobile phone, an APP is installed in the mobile phone, and a user can select a working mode of automatic control or manual control at the client side. Operation of the steam generator is monitored through the mobile phone APP, and the intelligent control that the steam generator is remotely monitored is achieved.
Owner:QINGDAO UNIV OF SCI & TECH

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

Split type electric pressure cooker

InactiveCN107397431ARegulate internal pressureAvoid disadvantagesPressure-cookersElectricityHome appliance
The invention provides a split type electric pressure cooker. The split type electric pressure cooker comprises a heating bottom disc, a control panel assembly, a thermosensitive temperature-sensing element and a pressure cooker body, wherein the heating bottom disc is provided with a main body and a bottom cover, a microcrystal plate is stored at an upper opening of the main body, a coil disc, a fan and a power panel assembly capable of adjusting the heating power of the coil disc are arranged in an inner cavity of the main body, and the bottom cover and a lower opening of the main body are correspondingly buckled; the control panel assembly is installed on the side wall of the main body, and the power panel assembly is electrically connected with the control panel assembly; the thermosensitive temperature-sensing element can be installed between the microcrystal plate and the coil disc in an extensible mode, the upper end of the thermosensitive temperature-sensing element extrudes out of the upper surface of the microcrystal plate, and the thermosensitive temperature-sensing element is electrically connected with the power panel assembly; and when the pressure cooker is placed on the microcrystal plate of the heating bottom disc, the bottom of the pressure cooker is in contact with the upper end of the thermosensitive temperature-sensing element correspondingly. According to the split type electric pressure cooker, combination work can be achieved, separate using can also be achieved, and the competitiveness of the product in household appliances is improved.
Owner:ZHEJIANG SHANGCHU COOKER CO LTD

Temperature cascade PID (Proportion Integration Differentiation) control system of high-temperature high-pressure testing device and control method thereof

The invention relates to a temperature cascade PID (Proportion Integration Differentiation) control system of a high-temperature high-pressure testing device and a control method thereof. A high-temperature autoclave for test is used for simulating the temperature, the pressure and other parameters of a stratum environment and carrying out detection test on performances of an instrument working in an environment similar to the stratum environment. The temperature cascade PID control system comprises a hot air mixed heating module, a heating power supply module, a fan circulating module and a temperature measurement and control module; a heating area of the hot air mixed heating module is divided into three temperature measurement areas, i.e. a target temperature measurement area, a safetytemperature measurement area and a hearth temperature measurement area; the target temperature of which an output signal is transmitted to an inner ring auxiliary control PID control circuit after operated and processed through an outer ring main control PID control circuit is compared with a safety temperature for operation processing, and the output signal is amended by a temperature control coefficient and converted into a simulation control signal which is output to a power adjusting device for adjusting the output power of the heating power supply. Three temperature control areas in the invention realize the accurate control on the test temperature in the autoclave by using a cascade control method according to the requirement of a process curve of raising, preserving and reducing the temperature.
Owner:XIAN ELECTRIC FURNACE INST

Temperature control method of electric heating kitchenware

The invention discloses a temperature control method of electric heating kitchenware, which comprises the following steps of: starting a heater and coming to a heating temperature rise period, when the temperature of an inner pot reaches first upper limit temperature value A1 of the inner pot or the temperature of the heater reaches first upper limit temperature value B1 of the heater, driving the heater by a controller to reduce heating power or stopping heating, and making the heater come to a constant temperature heating period; when the temperature of the inner pot is reduced to constant temperature target temperature T1 and the temperature of the heater is lower than second upper limit temperature value B2 of the heater, driving the heater by the controller to increase heating power; and when the temperature of the inner pot is increased to constant temperature target temperature T1 or the temperature of the heater reaches second upper limit temperature value B2, driving the heater by the controller to reduce heating power or stopping heating. In this way, the temperature control method not only realizes simple control structure and smaller consumed electric power, but also makes food cooking temperature T0 remain unchanged substantially. Due to the above characteristics, the temperature control method can be applied to the electric heating kitchenware such as general electric rice cooker, soup pot, oven and the like.

Condensation heat-transfer experiment device capable of realizing coupling of natural circulation and forced circulation

InactiveCN103196945AImprove accuracyObserve the water qualityMaterial heat developmentVisibilityCoupling
The invention provides a condensation heat-transfer experiment device capable of realizing the coupling of natural circulation and forced circulation. The condensation heat-transfer experiment device mainly comprises a steam supply system, an air supply system, a helium gas supply system, a natural circulation cooling system, a forced circulation cooling system, a condensing experiment body and a data measurement and acquisition system. The non-condensable gas containing extra-steam-pipe external condensation heat transfer experiment research under natural circulation and forced circulation cooling conditions and the experiment research on the heat extraction and flow characteristics of a natural circulation system under the conditions that the heating power is stable and changed can be realized. The device can monitor the experiment data in real time and continuously measure the condensation characteristics under different mixed gas compositions, and therefore, the device carries out measurement accurately and carries out data processing rapidly. In addition, the degree of visibility of a whole system is extremely high; and through the observation on experimental phenomena, the understanding on experimental processes and the in-depth study on heat transfer and flow mechanisms are facilitated.
Owner:HARBIN ENG UNIV

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

Convergence type condensation high temperature energy-concentrated heat-stored double loop driven solar energy heat power device

InactiveCN101105342AUniform and more rapid incomingEven and faster exportSolar heating energyFrom solar energyHigh temperature storageThermal energy
The invention relates to a converging type solar thermal power device capable of condensing sunlight, storing heat using high temperature phase change energy storage material and driving double loops, belonging to the technical field of solar energy collection and solar energy heat utilization. The device comprises a funnel-shaped converging type solar energy condenser, a transparent light transmitting window, an energy accumulator, a high temperature heat-conducting oil heat supply circulating system, a superheated steam generator, and a Rankine cycle-based heat-power converting system. The sunlight is condensed by the funnel-shaped converging type solar energy condenser, and entered into the energy accumulator through the transparent light transmitting window to realize high temperature storage therein, the high temperature heat-conducting oil heat supply circulating system transmits the high temperature in the energy accumulator to the superheated steam generator to heat working fluid to generate high pressure high temperature superheated steam therein, and converts heat energy to power through thermodynamic cycle. The invention is a device for supplying power or electric energy for user by condensing sunlight, storing heat using high temperature phase change energy storage material, and driving heat-power converting system using high temperature heat energy.
Owner:BEIJING INSTITUTE OF TECHNOLOGYGY

MEMS (micro-electromechanical system) semiconductor gas sensor as well as manufacturing method thereof and gas detection method

ActiveCN104034759AAutomatic adjustment of heating powerReduce or even eliminate the rateDecorative surface effectsSolid-state devicesElectrical resistance and conductanceInsulation layer
The invention relates to a sensor for detecting gas, in particular to an MEMS (micro-electromechanical system) semiconductor gas sensor. The MEMS semiconductor gas sensor comprises a substrate with a hollow part and a sensing module which is formed on the substrate, wherein the sensing module comprises a first insulation layer, a heating resistor, a second insulation layer, a test electrode and a gas sensitive layer, which are sequentially superimposed; the sensor also comprises a control module and a temperature detection module, wherein the temperature detection module, the heating resistor and the test electrode are respectively connected with the control module; the temperature detection module is used for detecting ambient temperature and feeding the ambient temperature back to the control module, the control module adjusts the heating power of the heating resistor according to the ambient temperature so as to control the temperature of the gas sensitive layer to be increased to the needed working temperature. By adopting the sensor, the adverse effect of the variation of the ambient temperature on the gas sensitive layer can be reduced and even eliminated, and the performance of the gas sensor is guaranteed. The invention also provides a manufacturing method of the gas sensor and a detection method based on the sensor.
Owner:SUZHOU LEANSTAR ELECTRONICS TECH

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
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