51results about How to "Stable air temperature" patented technology

The invention provides a constant wind temperature control system for a hot blast stove, comprising the hot blast stove (2), a detection element, a regulating valve, a data acquisition unit (1) and a computer (26). The control method of the control system comprises the following processes: detection of fluid parameters and valve location signals, data acquisition, data transmission, data comparison and data correction and control adjustment, wherein the detection element and the regulating valve are arranged in a pipeline, and temperature measuring equipment is arranged on the surface of a stove body. Specific steps are as follows: dynamically calculating parameters such as the heat storage capacity of checker bricks, temperature-rise ratio, theoretical wind temperature and the like during the combustion process, and carrying out on-line adjustment of parameters such as combustion air and gas flow, preheating temperature and the like; controlling direction change of the hot blast stove by the highest setting temperature of the checker bricks, a stove top and fume; and during the air supply period, taking hot blast temperature control as a target to determine an air supply curve and air supply time. The method based on calculation of dynamic balance of on-line energy of the hot blast stove effectively controls the heat storage capacity of the checker bricks of the hot blast stove, adjusts air supply quantity and air supply time, and ensures stable output of wind temperature of the hot blast stove.

The invention discloses a water-cooling thermoelectricity refrigeration automotive air conditioning. The traditional water-cooling thermoelectricity refrigeration automotive air conditioning needs to consume 10-15% of power of a vehicle main engine to operate, the refrigeration capability is affected by the vehicle driving speed, therefore the comfort requirement can not be satisfied. The water-cooling thermoelectricity refrigeration automotive air conditioning comprises a semiconductor refrigeration sheet (10), an air flue (1) and a fan (5), wherein one group of water-cooling plates (9) are mutually fixedly connected to form an outer sheath; the hot end of the semiconductor refrigeration sheet is fixed on the inner side of the water-cooling plate; the cold end of the semiconductor refrigeration sheet (10) is fixed on the side wall of the air flue; the water-cooling plates are connected with a water source by virtue of pipelines and form a loop together with a water pump; the air inlet (3) of the air flue is connected with the fan (5) by virtue of a pipeline; the air outlet (4) of the air flue is connected with the air supply pipe of the water-cooling thermoelectricity refrigeration automotive air conditioning by virtue of a pipeline; and the semiconductor refrigeration sheet is connected with a circuit system. The product is used for an air conditioning system.

The invention provides an air conditioner electric auxiliary heating device control method and system, a storage medium and an air conditioner. The method comprises the steps of detecting whether theoutdoor environment temperature is less than or equal to the first preset temperature value or not after the air conditioner is turned on for heating; detecting whether running parameters of the air conditioner meet preset turn-on conditions of an electric auxiliary heating device or not when detecting that the outdoor environment temperature is less than or equal to the first preset temperature value; and turning on the electric auxiliary heating device of the air conditioner when detecting that the running parameters meet the turn-on conditions of the electric auxiliary heating device. According to the scheme provided by the invention, whether the electric auxiliary heating device needs to be turned on or not when an air conditioner system is insufficient in heating capacity or is in anunstable state is judged through combination of detection on the running parameters of the air conditioner and indoor temperature changes.

The invention discloses an air conditioner control method. The method includes: when a received air conditioner control instruction is an energy-saving comfortable refrigeration instruction and a current indoor temperature is not lower than a set indoor environment temperature threshold, controlling a variable-frequency air conditioner to operate according to an original variable-frequency control mode of the variable-frequency air conditioner; otherwise, acquiring a compressor target frequency calculated according to an original variable-frequency control mode, and judging whether the compressor target frequency is smaller than a first set compressor frequency or not; if yes, controlling the compressor to operate by the first set compressor frequency, and controlling an outdoor fan to operate by a set rotating speed; if not, controlling the compressor and the outdoor fan to operate according to the original variable-frequency control mode; in the original variable-frequency control mode, executing room temperature PID control or dual PID control including coil temperature PID control on the compressor, wherein a coil target temperature adopted in coil temperature PID control is determined according to real-time indoor humidity. By application of the air conditioner control method, energy saving and refrigeration comfort of the air conditioner are improved.

The invention discloses an internal circulating air cooling device which comprises a cooling chamber, wherein the cooling chamber is provided with a feeding hole and a discharging hole and has an insulation function, an internal circulating variable frequency fan is arranged above the cooling chamber, a mesh belt drive system is arranged at the bottom of the cooling chamber, an air inlet and two air outlet pipes are arranged below the internal circulating variable frequency fan, an upper port of the air inlet is communicated with the air outlet pipes, a lower port of the air inlet is communicated with the top of the cooling chamber, the two air outlet pipes are positioned on the left side and the right side of the cooling chamber, respectively, a heat resistor is arranged at the root part of the air outlet pipe on the right side, a heat radiating device cooled by air around the heat radiating device, a plurality of parallelly arranged heaters, an upper air spraying cavity and a lower air spraying cavity are sequentially arranged inside the cooling chamber from top to bottom, the upper air spraying cavity is communicated with the air outlet pipe arranged on the right side of the cooling chamber, and the lower air spraying cavity is communicated with the air outlet pipe arranged on the left side of the cooling chamber.

The invention discloses a compressed air energy storage system which comprises a motor, an air compression unit connected with the motor, an air storage chamber storing compressed air and a temperature controller controlling the temperature inside the air storage chamber. A water atomizing and spraying mechanism used for keeping the temperature inside the air storage chamber stable and a temperature sensor used for measuring the temperature inside the air storage chamber. The air compression unit is used for sucking in air, and after the air is compressed, the air compression unit delivers the compressed air to the air storage chamber through an air channel to be stored. The temperature controller is connected with the temperature sensor so as to receive signals of the temperature sensor. The temperature controller is arranged in a pipeline connected with the water atomizing and spraying mechanism so as to control the work state of the water atomizing and spraying mechanism according to the signals, guarantee that the temperature of the air inside the air storage chamber is kept in a relatively stable temperature interval all the time, prevent frequent alternation of heat and cold of the inner wall of the air storage chamber and guarantee that the air storage chamber is safe and stable.

The invention discloses a stably-operating adiabatic compressed air storage power generation method and system. The technical scheme is as follows: when a power grid is in a valley load, by using a sinuous coil heat pipe exchanger arranged at a gas storage chamber and a countercurrent gas-liquid heat pipe exchanger arranged at an outlet of a gas compressor, through forced circulation, compression heat in a gas compression and energy storage process is absorbed by steps, and the absorbed heat is stored in the heat storage device; and when the power grid is in a peak load, the heat of the heat storage device is released, by using a gas release countercurrent gas-liquid heat pipe exchanger arranged at a turbine motor inlet and the sinuous coil heat pipe exchanger arranged at the gas storage chamber, through forced circulation, the temperature of a gas entering a turbine motor is increased, expansion cold of the gas storage chamber is absorbed, and the temperature of the gas storage chamber is kept relatively stable. According to the stably-operating adiabatic compressed air storage power generation method and system, the compression heat in a gas compression and energy storage process and expansion cold generated in a gas release and power generation process are absorbed by steps, thus a constant temperature of air in the gas storage chamber can be kept, the whole operation efficiency of the system is improved, the safety of the gas storage chamber can be ensured, and continuous and stable operation of a unit is ensured.

The invention discloses a furnace drying system of a hot-blast furnace, a furnace drying system of a blast furnace and a furnace drying method. The furnace drying system of the hot-blast furnace comprises a hot blast furnace provided with a cold air inlet, a hot air outlet, a smoke outlet and a vault manhole, a combustion cut-off valve which is used for being connected with the vault manhole of the hot blast furnace and is provided with a water cooling structure, a furnace drying combustor connected with the combustion cut-off valve, a gas supply mechanism which is connected with the furnace drying combustor and is used for supplying gas to the furnace drying combustor, a combustion-supporting gas supply mechanism which is connected with the furnace drying combustor and is used for supplying combustion-supporting gas to the furnace drying combustor, and a cooling water supply mechanism which is connected with a water cooling structure of the combustion cut-off valve and is used for supplying cooling water to the combustion cut-off valve. According to the furnace drying system of the hot-blast furnace, the furnace drying system of the blast furnace and the furnace drying method disclosed by the invention, under a situation of not using a main combustor of the hot blast furnace, the blast furnace is subjected to furnace drying, and the problem of the furnace drying on the blast furnace under a situation of no blast furnace gas of a newly-built blast furnace is solved.

The invention provides a control method of a heat pump air conditioner and the air conditioner. The control method of the heat pump air conditioner comprises the following steps of starting the heat pump air conditioner to release heat by utilizing an indoor unit of the heat pump air conditioner; detecting working condition parameters of the heat pump air conditioner; judging whether a working condition parameter of the heat pump air conditioner meets a preset extreme working condition; and if so, limiting the opening adjustment range of an electronic expansion valve of the heat pump air conditioner to be smaller than or equal to a preset adjustment limit value. According to the scheme, under the extreme working condition that the opening degree of the electronic expansion valve has greatinfluence on the exhaust temperature, large fluctuation of the exhaust temperature caused by excessive adjustment of the electronic expansion valve is avoided, and stable operation of a heat pump system is guaranteed.

The invention discloses a device for a high-humidity charging coking coal humidifying technology. The device comprises a fluidized bed damping machine, wherein a first fluidized bed type built-in heat humidifying module and a second fluidized bed type built-in heat humidifying module are arranged in the fluidized bed damping machine in parallel; an air preheater and a first fluidized blower are sequentially connected in series outside the first fluidized bed type built-in heat humidifying module to form a first process loop; a second fluidized blower is connected in series outside the second fluidized bed type built-in heat humidifying module form a second process loop; and the first process loop is connected with the second process loop through an adjustable overflow plate. By virtue of a frame structure, the air preheater and the fluidized bed damping machine are in modularized combination; the installation and repairing convenience of the process device is ensured; a plurality of modules can be freely combined into a large process device according to the production requirements; normal production of the humidifying system can be ensured only by reserving a backup module; and the scale of backup equipment for an existing humidifying system is reduced.

The invention discloses an air conditioner control method, an air conditioner and a storage medium. The method comprises the steps that the current opening degree of an electronic expansion valve, thetemperature of a heat balance branch and the pressure of the heat balance branch are obtained when the load rate of the air conditioner, the exhaust superheat degree of an air conditioner compressorand the outdoor environment temperature meet the preset conditions; the target opening degree of the electronic expansion valve is determined according to the current opening degree of the electronicexpansion valve, the temperature of the heat balance branch and the pressure of the heat balance branch; and the electronic expansion valve is adjusted according to the target opening degree of the electronic expansion valve. According to the air conditioner control method, the air conditioner and the storage medium, when it is judged that the surface of a heat exchanger of an indoor unit is proneto frosting, the opening degree of the electronic expansion valve is adjusted according to the temperature of the heat balance branch and the pressure of the heat balance branch, the amount of a refrigerant entering the heat exchanger of the indoor unit is reasonably distributed through the opening degree of the electronic expansion valve, frosting on the surface of the heat exchanger of the indoor unit is avoided, and the air outlet temperature of the indoor unit is made more stable. Accurate temperature control of the air conditioner is realized.

The invention discloses a control method of a wall-mounted air conditioner. The control method comprises the steps of running according to an original variable frequency control mode when a refrigerating and energy-saving comfort instruction is received and the current indoor temperature is not smaller than a set indoor environment temperature threshold; otherwise, obtaining calculated compressor target frequency according to the original variable frequency control mode and judging whether the compressor target frequency is smaller than a first set compressor frequency; if so, controlling a compressor to run at the first set compressor frequency and controlling an outdoor fan to run at a set rotating speed; otherwise, controlling the compressor and the outdoor fan to run according to the original variable frequency control mode; executing room-temperature PID control or dual PID control including disk temperature PID control on the compressor in the original variable frequency control mode, determining a coil target temperature adopted in the disk temperature PID control according to the indoor real-time humidity, and compensating the indoor temperature in the room-temperature PID control. By using the control method, the energy-saving and refrigerating comfort of the air conditioner is improved.

The invention relates to the technical field of energy storage, and discloses a compressed air energy storage system and an energy storage method. The compressed air energy storage system comprises anair compressor, a heat exchanger, a gas storage, an air expansion, a heat regenerator and a heat accumulator. An air outlet of the air compressor communicates with a gas-phase space of the gas storage through a first heat exchanging pipeline of the heat exchanger, the gas-phase space is further connected with an inlet of the air expansion through a third heat exchanging pipeline of the heat regenerator, a heat storage medium space of the gas storage is connected with an inlet of the heat accumulator through a second heat exchanging pipeline of the heat exchanger, and an outlet of the heat accumulator is connected to the heat storage medium space through a fourth heat exchanging pipeline of the heat regenerator. According to the energy storage method of the energy storage system, energy-releasing storage is combined with a heat energy storage system, the gas storage, the heat exchanger, the heat accumulator and the heat regenerator are used for forming a heat regenerative cycle, internal heat balance and pressure balance of the compressed air energy storage system can be simultaneously realized, and the conditions of variable backpressure operation of the air compressor becoming and sliding pressure operation of the air expansion are avoided.

The invention discloses a method for controlling the outlet air temperature of a direct-combustion hot blast stove. The combustion process, flue gas purifying and cold air mixing are controlled as a whole; by analyzing historical data, the mutual restrictive relation among the coal quality index of fuel coal, the thickness of the fuel coal, the fire grate speed, the combustion supporting air flow, the primary combustion hearth temperature, the secondary combustion flue gas temperature, the cold air flow and the outlet air temperature is found out; a feedforward control model is established, when a system runs, repeated model correction is performed through a method that the feedforward control model is combined with process feedback control, and rolling optimization is performed on the control process; and under the situation that the combustion condition changes, positive adaptation can be fast adjusted, the optimal air-coal ratio and the cold blast rate needed by a mixing chamber are guaranteed, the outlet air temperature is made to be stabilized, the temperature difference of +/-3 DEG C is achieved, the heat supply process is stable and adjustable, and the purposes of stable production and energy saving are achieved.

The invention discloses a control method of a wall-mounted type air conditioner. The control method comprises the steps that when a refrigeration energy-saving comfort instruction is received and the current indoor temperature is not smaller than an indoor environment temperature threshold value, the air conditioner runs according to an original frequency converting control mode; if not, the compressor target frequency calculated out according to the original frequency converting control mode is obtained, and whether the compressor target frequency is smaller than the first set compressor frequency or not is judged; if yes, a compressor is controlled to run according to the first set compressor frequency, and an outdoor fan is controlled to run at the set rotating speed; and if not, the compressor and the outdoor fan are controlled to run according to the original frequency converting mode. In the original frequency converting control mode, indoor temperature PID control or dual PID control comprising coil pipe temperature PID control is executed on the compressor, the coil pipe target temperature adopted in coil pipe PID control is determined according to the indoor real-time humidity, and compensation is carried out on the indoor temperature in indoor temperature PID control. By applying the control method, the energy saving and refrigeration comfort of the air conditioner are improved.

The invention relates to the technical field of air treatment, and discloses constant-temperature and constant-humidity air treatment equipment and method. The equipment comprises a bin body, and a fresh air filtering cavity, a mixing cavity, a cooling and dehumidifying cavity, a fan cavity, a heating cavity, a humidifying cavity and a mixed air supply cavity which are sequentially arranged in thebin body from left to right, a fresh air inlet is arranged at the left side of the fresh air filtering cavity, an air return inlet is formed in the top side of the mixing cavity, an air supply outletis formed in the top side of the mixing air supply cavity, a pore plate is fixedly connected between the mixing cavity and the cooling and dehumidifying cavity, a bearing table is fixedly connected to the bottom of the inner side of the fresh air filtering cavity, a semispherical filtering cover and a motor are fixedly connected to the two sides of the top of the bearing table correspondingly, agear is rotationally connected into the fresh air filtering cavity, and a horizontally-arranged supporting plate is fixedly connected to the outer side of the gear. By means of the design, the effectsof heat recovery and water resource cyclic utilization are achieved, the purpose of saving energy is achieved through segmented control, the temperature gradient is reduced through charging and mixing before air supply, and the temperature and humidity are constant, reliable and easy to control.

The invention discloses an indoor ventilation system which comprises a control component, a blower device, a pipeline component, a filtering component, an air intake pipe, an air returning pipe and an air flow control module, wherein the air flow control module is communicated with the air intake pipe and comprises a plurality of air outlet pipes, and the air outlet pipes are arranged on an indoor ceiling or wall in parallel; air outlet holes are formed in the side wall of each air outlet pipe along the length direction, and shutters used for regulating the air volume and the air direction of the air outlet pipe are arranged on each air outlet pipe; the air returning pipe is arranged on the indoor ceiling or wall, and air returning holes are formed in the air returning pipe; air draught is formed between the air outlet holes of the air outlet pipes and the air returning holes of the air returning pipe. The air outlet pipes are arranged in parallel, and air separating plates are arranged in the air outlet pipe in a sliding mode, so that the air discharge area of the air outlet holes of the air outlet pipes can be conveniently regulated and changed, and therefore the size of the indoor airflow is changed. The level change of the indoor airflow can be convenient to realize through the air outlet pipes arranged side by side.

The invention discloses an initial air outlet mode control device of a vehicle-mounted air conditioner, which comprises an air blower, a common air duct, a defrosting air duct, a blowing surface air duct and a blowing foot air duct, wherein the common air duct is respectively connected with the defrosting air duct, the blowing surface air duct and the blowing foot air duct, the air blower is connected with the air inlet of the common air duct, the initial air outlet mode control device comprises a first air door and a second air door, which are used for controlling the closing of the defrosting air duct, the blowing surface air duct and the blowing foot air duct, and the first air door and the second air door are connected with the lower layer of the common air duct through a bearing, andthe bearing is connected with an output shaft of the automobile motor. According to the invention, the overheated or too cold initial air outlet of the automobile air conditioner can be prevented frombeing directly blown to drivers and passengers, meanwhile, after proper time delay, the air temperature in the air duct tends to be stable, the air door is controlled to rotate, the defrosting mode and the foot blowing mode are closed, and the surface blowing mode is opened, and the comfort of the automobile air conditioning system is improved.

The invention discloses an intelligent temperature control drying system. The intelligent temperature control drying system comprises a first air filter, an air feeder, a second air filter, an air heater, a charging barrel, a peristaltic pump, an atomizer, a drying tower, a cyclone separator, an outlet air temperature probe, a temperature regulator, an induced draft fan, a water spraying dust remover and a control unit. The first air filter, the air feeder, the second air filter, the air heater and the atomizer are sequentially connected through air pipes. A temperature sensor is arranged at a hot air inlet of the air heater. The temperature regulator and the temperature sensor are both connected with the control unit. The control unit is connected with the temperature regulator and controls the temperature regulator to work according to temperature signals fed back by the temperature sensor so as to regulate the temperature of hot air entering the air heater. According to the intelligent temperature control drying system, the control unit controls the outlet air temperature probe to be in linkage with the peristaltic pump, the outlet air temperature is kept relatively stable, the temperature of the hot air entering the air heater is regulated through the temperature regulator, it is ensured that drying work can be conducted at the set temperature, and the product quality uniformity is ensured.

The invention discloses a solar-assisted steam compression heat pump dehumidification air-conditioning system, and relates to the field of compression heat pumps. The system comprises a solar heat collector, a heat collection circulating pump, a hot water circulating pump, a generator, a solution heat exchanger, an absorber, a condenser, a compressor, a fluorine path four-way valve, a solar reheater, an outdoor heat exchanger, a liquid storage device, a subcooler, an indoor heat exchanger, a fluorine path three-way valve, a dehumidification heat exchanger, a fan, an air duct and an air four-way valve, the fluorine path four-way valve can switch a refrigerating mode and a heating mode according to different seasons, and the air-conditioning system continuously outputs air meeting indoor temperature and humidity requirements through matched switching of the air four-way valve and the fluorine path three-way valve. Through the implementation of the air-conditioning system, the evaporation temperature for treating the wet load can be increased, the electric power consumption ratio of refrigeration of the air-conditioning system in summer can be increased through solar energy, and the heating energy efficiency can be better than that of an air source heat pump through air energy and solar energy at the same time in the heating mode in winter.

The invention relates to a Bridgman-method single crystal production device with integrated environment maintenance, belongs to the field of single crystal growth, and aims to solve the problem that air is polluted by toxic elements in Bridgman-method single crystal production places. The device comprises a fan, and a gas distribution bin, a single crystal cultivation bin and a gas collection binwhich are adjacently connected and arranged together in turn from top to bottom, wherein numerous holes are uniformly distributed on a bottom-side panel of the gas distribution bin; the gas distribution bin is provided with an intake air interface; numerous holes are uniformly distributed on an upside panel of the gas collection bin; the gas collection bin is provided with an air exhaust interface; the bottom-side panel of the gas distribution bin simultaneously serves as a top panel of the single crystal cultivation bin; the upside panel of the gas collection bin simultaneously serves as a bottom panel of the single crystal cultivation bin; and an air outlet of the fan is communicated with the intake air interface of the gas distribution bin. By operating the device, the air of the single crystal cultivation bin can be continuously updated under the condition that the air temperature field of the single crystal cultivation bin is hardly disturbed. The device is in an integrated form.