281 results about "Heating cycle" patented technology

The invention belongs to the technical field of refrigerants, and provides a mixed refrigerant for replacing R290 and a preparation method and application thereof, the mixed refrigerant comprises a first component, a second component and a third component; the first component is trans-1, 2-difluoroethylene, the second component is 2, 3, 3, 3-tetrafluoropropene, and the third component is trifluoromethyl methyl ether; compared with R290 refrigerants in the prior art, the mixed refrigerant has the advantages that flammable and explosive components do not exist, and high-risk combustible gas clusters cannot be formed due to density layering after leakage, so that the mixed refrigerant has high safety performance, and the safety level can be not lower than A2L; the mixed refrigerant has the environment-friendly characteristic of low GWP, the GWP is smaller than or equal to 150, and the environment-friendly requirement is met; the thermophysical property and the refrigeration and / or heating cycle performance of the mixed refrigerant are similar to or better than those of R290; the mixed refrigerant can be used for directly replacing an R290 refrigerant.

The invention discloses a special composite enamel coating for a chromium-nickel alloy base material and a preparation method of the special composite enamel coating, when the special composite enamel coating structurally comprises one layer, the special composite enamel coating comprises the following components in parts by mass: 40-65 parts of a basic glass phase, 30-55 parts of a high-melting-point ceramic reinforced phase, 2-10 parts of a thermal expansion coefficient regulator and 0.5-5 parts of an interface bonding accelerant. Compared with the prior art, the enamel coating can achieve nearly perfect thermal expansion coefficient matching with a chromium-nickel alloy matrix, a tough chemical bonding interface is formed, the enamel coating can stably work for a long time in the extreme high-temperature environment of 1,100 DEG C or above, and meanwhile the enamel coating has the excellent abrasion resistance, repeated rapid cooling and rapid heating cycle resistance and thermal shock resistance.

The invention provides a thermal cycle period customized thermal fatigue test method and equipment, the equipment comprises a rotation system, a heating unit, a cooling unit, a temperature detection probe, a temperature detector and a temperature controller, the temperature controller outputs signals to control the rotation system and a temperature adjusting system, thermal and cold circulation of a workpiece is realized, and the thermal fatigue test efficiency is improved. The temperature value of the sample in the whole cycle period is obtained through signal input of the temperature detector, the temperature controller compares the temperature fed back by the temperature detector with the set temperature, then the rotating system, the cooling unit and the heating unit are regulated and controlled and optimized continuously, and fitting of temperature waveforms is achieved. According to the equipment, through cooperative work of the temperature controller, the temperature adjusting system, the temperature detector and the rotating system, temperature control and rotating control on the sample placing platform are realized, so that the thermal fatigue test requirements of the same test material under various working conditions are met.

The invention discloses a methanol fuel ship hybrid power system coupled with carbon dioxide in-situ capture and utilization. The methanol fuel ship hybrid power system comprises an SOFC / GT system, a supercritical carbon dioxide cycle power generation system, an organic Rankine cycle power generation system and a carbon dioxide in-situ utilization system. Exhaust gas of a gas turbine in the SOFC / GT system serves as a heat source to be sequentially used for heating cycle working media of the supercritical carbon dioxide cycle power generation system and the organic Rankine cycle power generation system and then enters the carbon dioxide in-situ utilization system. Exhaust gas received by the carbon dioxide in-situ utilization system is condensed through a condenser to separate H2O and then enters a cathode of the porous solid electrolytic cell, the cathode comprises a KOH solution and an anion exchange membrane, an anode comprises water and a cation exchange membrane, an electrode catalyst is bismuth oxide, anode exhaust gas enters the SOFC / GT system, and formic acid discharged by a middle interlayer enters a formic acid storage tank. According to the invention, the carbon dioxide in the waste gas is captured in situ on the methanol fuel ship to generate a high-added-value product, and the energy of a power system is comprehensively utilized.

The invention discloses an air energy-soil composite heat pump cross-seasonal energy storage and winter combined heating system and an application method, and relates to the technical field of building energy conservation. Comprising the following steps: acquiring quantitative data of heat unbalance; when a heat unbalance phenomenon exists, determining a soil initial temperature and a maximum rising temperature before heat compensation, and calculating a heat compensation amount; determining a heat compensation operation time period and a system type selection of an air source heat pump; determining an initial rising temperature, a heat compensation initial investment and a preset age limit; the operation cost is determined, when the number of times of heat compensation is larger than a preset year limit, the sum of the initial investment of heat compensation and the operation cost within the preset year limit is recorded, and when it is detected that the total soil temperature increasing value is not lower than the maximum temperature increasing value, the air source heat pump system is determined again; and the strategy with the minimum operation cost and the minimum initial heat compensation investment is used as the optimal soil heat compensation strategy. The system obviously improves the utilization rate of renewable energy sources, and has the advantages of high energy efficiency, wide adaptability and low whole life cycle cost.

The invention relates to an intelligent electric water heater remote regulation and control and energy efficiency management system based on the Internet of Things, and relates to the field of intelligent management. In response to a terminal starting instruction, a geographic position data set is obtained, the home distance between the terminal nodes and nearest neighbor terminal nodes is counted, and a user arrival time prediction value is generated according to a preset speed constant parameter; when the starting instruction does not comprise a first temperature setting constant of the nearest terminal node of temperature value statistics and a second temperature setting constant of the request equipment terminal, the larger value is extracted and set as a target temperature value, and the arrival time prediction value is used as a heating period target value and is combined with the target temperature value to be sent to the request equipment terminal to obtain a feedback instruction; and when the instruction is confirmed, the energy consumption optimization model is executed to solve output power time sequence information, and the output power time sequence information is applied to a PID control loop of the electric water heater. The problem that the intelligent electric water heater is poor in remote regulation and control intellectualization and energy efficiency management performance is solved.

The invention discloses a wind-light-heat-storage comprehensive utilization system for an abandoned mine. The system comprises a power generation module, a dispatching module, a power storage module, a heating module, a water supply module, a heat storage module and a heat supply network module. The power generation module is connected with the dispatching module through a power transmission line, the dispatching module is connected with a power grid through a first power transmission line, the dispatching module is connected with the power storage module through a second power transmission line, and the power storage module supplies power to the heating module through a first power supply line and supplies power to electrical loads such as living quarters through a second power supply line. The heating module is connected with the heat storage module through a recharge pipeline, the heat storage module is connected with the heat supply network module through a hot water pipeline, the heat supply network module forms a heating cycle through a heating pipeline to heat a mining area and surroundings, and the water supply module is connected with the heating module through a water supply pipeline. Comprehensive utilization of wind energy, light energy, geothermal energy, mine water and waste space of the waste mine is achieved, the problem of waste of associated resources of the waste mine is solved, and resources are reasonably utilized to bring more benefits to the mine.

The invention discloses an aerosol generating device and system and a control method. The aerosol generating device comprises a battery cell; a first heater configured to be at least partially inserted into the interior of the aerosol-generating article for heating, and a second heater configured to be at least partially heated around the aerosol-generating article; and the controller is configured to control the heating energy supplied to the first heater and the second heater by the battery core, so that the temperature of the first heater is higher than that of the second heater in the whole heating cycle. According to the aerosol generating device and system and the control method, the first heater is controlled to conduct main heating, the second heater is controlled to conduct auxiliary heating, the aerosol generating product can be fully baked, the release amount of the aerosol is increased, and the aerosol is slowly released.

The utility model discloses a split type multi-combined supply central air-conditioning system driven by solar energy, and belongs to the technical field of cooling and heating equipment. The system comprises a lithium bromide absorption refrigeration type host, a solar heat collector, a refrigeration water tank, a heating water tank, a plate heat exchanger, a fuel cell, a cooling tower, a wall-hanging stove and a fan pipe disc, wherein the lithium bromide absorption refrigeration type main machine absorbs heat energy provided by solar energy through lithium bromide, and the circulation process of refrigeration or heating is completed; water is heated by solar energy absorbed by the solar heat collector and fed into the heating water tank through a pipeline to be heated by the system. The plate heat exchanger is responsible for heat exchange between the lithium bromide absorption refrigeration host and the heating water tank; the fuel cell supplies power to the system, and the wall-hanging stove assists in heating the heating water tank. The cooling tower is used for dissipating heat of the lithium bromide absorption refrigeration host; cold water in the refrigeration water tank is dissipated into a room in an air mode through the fan pipe disc so that the system can conduct refrigeration.

The invention relates to a method for a regeneration of a nitric acid, in which the used nitric acid is fed into a regeneration device that comprises a heated receiving tank B and a condenser C connected to it and a collection tank D, and where the regeneration is carried out in two stages. The nitric acid to be regenerated fed to receiving tank B in both the first stage and the second stage is heated under vacuum in receiving tank B in two separate heating cycles.

The present application relates to the technical field of microcontroller, and discloses a photovoltaic heating segmented control system based on a microcontroller.The system comprises a photovoltaic power generation module, an energy storage module, a heating module and a control module with a built-in microcontroller, and each module is configured with a standardized quick plug structure.The microcontroller executes a multi-scene segmented control program, which contains temperature threshold driven heating cycle control, energy storage charging and discharging priority segmented scheduling, photovoltaic output winter enhancement logic, valley electricity priority grid auxiliary heating logic and module fault adaptation and tool-free autonomous maintenance logic.The system realizes full-process collaborative segmented scheduling of multi-source energy flow, dynamically matches power according to photovoltaic output attenuation and load fluctuation, maintains continuous operation of the heating loop in extremely low temperature, and realizes autonomous replacement and maintenance of the modules.

The application provides an air conditioner, and belongs to the technical field of air conditioners. In the application, the gas conveying pipeline is coupled with the evaporator and the condenser, and the high-temperature air compressed by the air compressor module is cooled by using the refrigeration and heating cycles of the air conditioner itself. This method can reduce the consumption of additional energy and improve the overall energy efficiency. At the same time, since the molecular sieve has higher working efficiency at a suitable temperature, this design helps to improve the oxygen production efficiency. The air conditioner can automatically adjust the use of the gas conveying pipeline according to the refrigeration mode and the heating mode. This design enables the system to be flexibly adjusted according to the current operation mode, so as to achieve the best cooling effect.

To provide a refrigeration cycle system that can suppress malfunctions of the four-way valve at low ambient temperatures. [Solution] The refrigeration cycle device comprises a four-way valve and a control unit. The four-way valve has a compressor, an indoor heat exchanger, an expansion valve, and an outdoor heat exchanger, and switches the direction of flow of the refrigerant that is circulated by the compressor in a refrigerant circuit and connected to the refrigerant circuit. The control unit controls the compressor and switches between heating operation, in which the refrigerant is circulated in a heating cycle, cooling operation, in which the refrigerant is circulated in a cooling cycle with the opposite flow direction to the heating cycle, and defrosting operation, in which frost has formed on the outdoor heat exchanger due to heating operation is removed in the cooling cycle, by switching the four-way valve. When the control unit receives an operation stop signal and is performing defrosting operation, it stops the compressor after performing heating operation for a predetermined time or longer after the completion of defrosting operation.

The application provides a heat management method and an absorption type combined cooling and heating system, and comprises the following steps: detecting the ambient temperature in a factory building; if the ambient temperature is less than a first temperature threshold, controlling a first three-way valve, a second three-way valve, a third three-way valve, a fourth three-way valve and a four-way valve to switch to a heating switch state respectively, so that the waste heat generated by auxiliary equipment and steam waste heat are used as a heating source for driving a heating cycle, and the heating cycle is completed through a circulating working medium; if the ambient temperature is greater than a second temperature threshold, controlling the first three-way valve, the second three-way valve, the third three-way valve, the fourth three-way valve and the four-way valve to switch to a cooling switch state respectively, so that the steam waste gas and heat absorbed from cooling water in a cooling cycle are used as a heating source for driving the cooling cycle, and the cooling cycle is completed through the circulating working medium. The steam waste gas, a hot water production and distribution system and a cooling water system are integrated as a whole, and the energy utilization rate is improved by switching the operation mode of the whole system.

This invention provides a variable frequency control method, system, computer, and readable storage medium for a heater. The method includes calculating a temperature difference; calculating a heating cycle and a stabilization power based on the temperature difference; determining the heating power of the heater based on the heating cycle; calculating a first airflow rate and a first oil injection rate of the fan based on the heating power; controlling the heater's heating according to the first airflow rate and the first oil injection rate; determining whether the temperature difference is within a preset range; if the temperature difference is not within the preset range, continuing to control the heater's heating according to the first airflow rate and the first oil injection rate; if the temperature difference is within the preset range, calculating a second airflow rate and a second oil injection rate of the fan; and controlling the heater's stabilization heating according to the second airflow rate and the second oil injection rate, thereby achieving variable frequency control of the heater. This invention can significantly reduce the energy consumption of the heater, while achieving heating and temperature stabilization of the heater in the fastest and most energy-efficient manner.

The application relates to the technical field of kitchen equipment, and provides a control method of a cooking utensil, the cooking utensil and a storage medium. The cooking utensil comprises a pressure cavity, an emulsification cavity, a jet hole and a heating piece. The jet hole is communicated with the pressure cavity and the emulsification cavity. The heating piece is used for heating the pressure cavity. The control method comprises the following steps: obtaining a food material quantity in the emulsification cavity; and adjusting a working parameter of the heating piece based on the food material quantity, so that a fluid in the pressure cavity intermittently boils, wherein the working parameter comprises at least one of a heating period and a heating power. The control method of the cooking utensil, the cooking utensil and the storage medium provided by the application can strengthen emulsification of soup liquid.

Electric heating clothing typically includes an electric heater and a battery. Battery energy is finite, and if the battery supplying energy to heat the clothing discharges in extremely cold weather, the user's health and life are at risk. This invention discloses a system for electric heating clothing, comprising means for converting energy present in the surrounding natural environment into electrical energy for heating the clothing and extending its heating cycle. The energy is obtained using one or more means selected from wind-induced vibration, acoustic vibration, ambient air humidity, snow friction generators using snow, temperature fluctuations in ambient air, and the temperature difference between the ground surface temperature and the ambient air temperature.

The utility model discloses a photovoltaic photo-thermal two-stage heat pump system which comprises a photovoltaic photo-thermal system, a first-stage heat pump system, a buffer water tank system and a second-stage heat pump system, an outlet of a heat collector refrigerant pipe of the photovoltaic photo-thermal system is divided into two paths, one path is connected with an inlet in one side of a first-stage evaporator through a first pipeline, and the other path is connected with an outlet in the other side of a second-stage evaporator through a second pipeline. An outlet in one side of the first-stage evaporator is connected to a refrigerant inlet of the heat collector through a fourth valve; the other path is connected to a first path inlet of the second-stage evaporator through a first pipeline, and a first path outlet of the second-stage evaporator is connected with a refrigerant inlet of the heat collector; the first-stage heat pump system comprises a first-stage heat pump heating circulating system and a first-stage heat pump refrigerating circulating system. According to the utility model, the heat pump can be utilized to take away the power generation waste heat of the photovoltaic module in time, and the phenomenon of power generation efficiency reduction caused by overhigh temperature of the photovoltaic module is relieved; the evaporation temperature of the heat pump can be increased through solar energy, the thermal performance of the system is improved, and therefore advantage complementation and gradient utilization of clean energy are achieved.

The present invention pertains to a reinforcing fiber base material that is provided with one or more reinforcing fiber sheets obtained by pulling and aligning reinforcing fibers in one direction, and that is integrated together by a stitch thread that is made of an amorphous resin material and that satisfies at least one of the following conditions: the tensile elastic modulus of the amorphous resin material is 1 GPa or more at 82°C; and the shrinkage rate of the amorphous resin material is less than 10% when being held at 130°C. The present invention also pertains to a fiber-reinforced composite material manufactured by using said reinforcing fiber base material. A fiber-reinforced composite material according to the present invention has excellent compressive strength in moist-heat environments, suppresses occurrence of microcracks after a cooling-heating cycle, and has excellent durability.

The application discloses a kind of equipment for studying the stability of MICP mineralization product under dry-wet-freeze-thaw cycle, comprising: soil column test unit, refrigeration cycle system, heating cycle system, temperature monitoring system and water injection unit;Soil column test unit includes temperature guide plate, soil column sample cylinder, heat preservation layer and water permeable plate;Refrigeration cycle system includes refrigeration device, cooling liquid inlet pipe and cooling liquid outlet pipe;Heating cycle system includes heating device, hot liquid inlet pipe and hot liquid outlet pipe;Temperature monitoring system includes temperature sensor and data acquisition equipment;Water injection unit includes water storage tank and peristaltic pump;Soil column sample cylinder is also provided with water outlet for discharging water in soil column sample cylinder.The equipment can simulate the dry-wet and freeze-thaw cycle environment of soil column sample, obtain the stability parameters of soil column sample under the action of dry-wet cycle and freeze-thaw cycle alone or coupling, and evaluate the stability effect of MICP technology in repairing heavy metal pollution, providing theoretical and practical basis.

This application discloses a structure for an integrated heating and cooling refrigeration unit, including an outdoor compressor, an outdoor condenser core, and an indoor evaporator core. It also includes: a refrigeration solenoid valve, with the compressor connected to the condenser core via an outlet pipe, and the refrigeration solenoid valve installed on the outlet pipes of both the compressor and the condenser core; a defrost solenoid valve, with the compressor connected to the evaporator core via an outlet pipe, and the defrost solenoid valve installed on the outlet pipes of both the compressor and the evaporator core; and a suction pressure regulating valve, with the evaporator core connected to the compressor via a return pipe, and the suction pressure regulating valve installed on the return pipes of both the evaporator core and the compressor. This integrated heating and cooling refrigeration unit constructs a highly efficient refrigeration and heating cycle system, achieving rapid switching and stable output of refrigeration and heating functions. This better adapts to the transportation of diverse goods, ensuring cargo quality and safety.

The invention relates to the technical field of solar energy and air energy heat supply, in particular to an integrated air source heat pump and photovoltaic and photo-thermal linkage triple co-generation system and an operation method thereof.The integrated air source heat pump and photovoltaic and photo-thermal linkage triple co-generation system comprises a PVT photovoltaic module, an air source heat pump, an integrated module, a water using terminal and a heating radiator, and the PVT photovoltaic module is electrically connected with the air source heat pump; the integrated module comprises a heat exchange water tank, an energy supply water tank, a fan coil and a PVT photovoltaic module, photovoltaic power generation is supplied to the air source heat pump, the PVT photovoltaic module absorbs solar energy, converts the solar energy into heat energy, circularly heats water in the heat exchange water tank and supplies the heat energy to a water using terminal, and a water using terminal hot water mode is achieved; the air source heat pump is communicated with the energy supply water tank, a heat exchange coil pipe is arranged in the heat exchange water tank, a water inlet of the heat exchange coil pipe is connected with a host liquid supply pipe through an electric three-way valve, a water outlet of the heat exchange coil pipe is connected with a host liquid return pipe, and the air source heat pump exchanges heat to realize a winter heating mode and a summer refrigeration mode; and the energy supply water tank exchanges heat to realize a cold supply circulation mode and a heat supply circulation mode.

The invention relates to the technical field of air conditioners, in particular to a heat pump air conditioning system. The invention aims to solve the problems of high cost and poor stability caused by the fact that a CO2 heat pump air conditioning system needs to be additionally provided with a liquid storage device. In order to achieve the purpose, the heat pump air-conditioning system comprises a compressor, a first heat exchanger, a second heat exchanger, a third heat exchanger, an ejector, a gas-liquid separator, a heat exchange flow path and the like, in a refrigeration mode, the second heat exchanger and the third heat exchanger are both in a refrigeration cycle, and the demand quantity of refrigeration working media is larger; the liquid refrigerant in the gas-liquid separator can be fully transferred, in the heating mode, only the third heat exchanger is in the heating cycle, the quantity demanded for the refrigerant is small, the redundant refrigerant can be stored in the gas-liquid separator, and therefore the quantity demanded for the refrigerant can be adjusted without additionally arranging a liquid storage device; the cost is reduced, and the operation stability of the system is improved.

Disclosed are systems and methods of a novel framework to improve the performance and reduce resource usage of a water heater. By adaptively stopping the heating of the tank at a lower temperature, which can be predicted by past use to supply adequate hot water (energy), and then heating prior to a learned use demand period, the disclosed systems and methods provide functionality that enables the standby temperature to be optimized for energy loss. Among other benefits, this not only reduces the expenditure of resources, but also improves the accuracy and efficiency of the water heater system.

The present application discloses an aerosol generating device, a system, and a control method. The aerosol generating device comprises: a battery cell; a first heater and a second heater, wherein the first heater is configured to be at least partially inserted into an aerosol generating product for heating, and the second heater is configured to surround and heat at least part of the aerosol generating product; and a controller, which is configured to control the heating energy supplied to the first heater and the second heater by the battery cell, so that within the entire heating cycle, the temperature of the first heater is greater than the temperature of the second heater. According to the aerosol generating device, the system, and the control method, by controlling the first heater to perform main heating, and the second heater to perform auxiliary heating, the aerosol generating product can be fully baked, thereby increasing the amount of release of an aerosol, and releasing the aerosol smoothly.

The application provides a multi-mode energy-saving semiconductor temperature control device and a control method thereof, which comprises a refrigeration system, a circulating liquid system and a PID controller; the refrigeration system comprises a compressor, an evaporator, a three-way valve, a water condenser, an air condenser, a refrigeration quick-opening electromagnetic valve and a hot gas bypass electromagnetic valve; the circulating liquid system comprises a heater and an outlet temperature sensor; the PID controller controls the conduction of the interface of the three-way valve to control the heat exchange switching of the water condenser and an air speed regulator; the PID controller determines an output percentage according to a first temperature value collected by the outlet temperature sensor and a target temperature value; in the case of a first constant temperature control mode, the refrigeration quick-opening electromagnetic valve and the hot gas bypass electromagnetic valve are switched on and off in a refrigeration cycle according to the output percentage; in the case of a second constant temperature control mode, the power-on time of the heater in a heating cycle is controlled according to the output percentage. The multi-operation mode and energy-saving temperature control purposes are achieved.

The invention discloses an electronic atomization device constant power output control system and a control method thereof.The electronic atomization device constant power output control system comprises a heating module, a heating wire, a voltage detection module, a current detection module and a PWM control module, and the heating module, the voltage detection module and the current detection module are all electrically connected with the heating wire; the heating module, the voltage detection module and the current detection module are all in signal connection with the PWM control module, the heating module is used for heating the heating wire according to a PWM control signal, the voltage detection module is used for detecting the real-time voltage of the heating wire, and the current detection module is used for detecting the real-time current of the heating wire; the PWM control module is used for determining the heating duty ratio of the current heating period, adjusting the PWM control signal of the current heating period according to the heating duty ratio, and sending the adjusted PWM control signal to the heating module. The accuracy of constant power output control of the electronic atomization device is improved, and the method can be widely applied to the technical field of electronic atomization devices.

The utility model provides a heating circulation bin for preparing raw materials of nylon particles, which relates to the technical field of circulation heating and comprises a fixed base, a circulation heating mechanism is arranged above the fixed base and comprises a heating tank, and the outside of the heating tank is fixedly connected with supporting blocks which are symmetrically distributed. The lower ends of the two supporting blocks are fixedly connected with the upper end of the fixed base, a gear circulating pump in the circulating heating mechanism drives materials to circulate in a reciprocating mode, a dynamic heat exchange environment is constructed, in the circulating stirring mechanism, a servo motor works to enable a spiral scraping blade, stirring blades and a variable-diameter spiral piece to cooperatively operate, the spiral scraping blade scrapes off high-temperature materials on the tank wall, and the stirring efficiency is improved. The stirring blades disturb middle-layer materials, heat transfer is promoted, bottom materials are conveyed upwards through the variable-diameter spiral pieces, alternate circulation of inner-layer materials and outer-layer materials is achieved in cooperation with the gear circulating pump, temperature layering is eliminated, it is guaranteed that nylon raw materials are evenly heated, the carbonization deterioration risk is reduced, and the product quality is improved.

The present invention relates to a process for the preparation of crystalline purified terephthalic acid (PTA) having an average crystal size of about 50 to 150 microns, comprising the steps in the following order: a) providing an aqueous PTA solution of a purified terephthalic acid metallized salt (pH 7); b) heating the solution to a maximum crystallization temperature; c) adjusting the pH of the solution to 5; d) subjecting the solution to a cooling-heating cycle to obtain grown PTA crystals, wherein the solution is cooled to a minimum crystallization temperature and then heated to a maximum crystallization temperature; e) adjusting the pH of the PTA solution at the highest crystallization temperature to 1 to 3 for the complete precipitation of crystalline PTA, f) filtering the PTA solution to collect crystalline PTA, g) washing the filtered crystals with cold water, h) drying the crystals.