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1691 results about "Outdoor temperature" patented technology

Cold source centralized digital control method based on energy consumption monitoring

The invention discloses a cold source centralized digital control method based on energy consumption monitoring. The cold source centralized digital control method based on energy consumption monitoring comprises the following steps that a, real-time monitoring is conducted on power utilization, water utilization, the cooling quantity, the temperature, the pressure and the equipment state of a cold source system of a central air conditioner; b, energy consumption data and system state data collected in the step a are summarized, real-time refrigerating efficiency of the cold source system is calculated according to operating power parameters of a water chilling unit, a chilled water pump, a cooling water pump and a cooling tower fan in the system and the refrigerating capacity of the water chilling unit, forecast energy consumption data at present are obtained through forecasting according to outdoor temperature and humidity parameters at present, indoor temperature and humidity parameters at present and a load forecast model, the forecast energy consumption data and the energy consumption data which are actually monitored are compared, problems existing in the use process of a refrigerating system are found, and an optimized operation control strategy of the cold source system is formed; c, the optimized operation control strategy formed in the step b is conducted, and optimized operation control is achieved through a direct digital controller and an electrically operated valve connected with the direct digital controller.
Owner:北京方胜有成科技股份有限公司

Thermostat dehumidification control method of air conditioner

The invention discloses a thermostat dehumidification control method of an air conditioner. The air conditioner comprises a compressor, a condenser, an electronic expansion valve, an evaporator, a four-way reversing valve, an outdoor fan, an indoor fan, an indoor temperature sensor, an indoor humidity sensor and an outdoor temperature sensor; and the evaporator is divided into a heating section and a dehumidifying section by a dehumidifying electromagnetic valve. The dehumidifying operating mode of the air conditioner is divided into a cold room dehumidification control mode and a thermostat dehumidification control mode according to the difference between the temperature detected by the indoor temperature sensor and the temperature set by a remote controller. When the air conditioner is in the thermostat dehumidification control mode, the thermostat dehumidification control mode is further subdivided into three control areas according to the relative humidity detected by the indoor temperature sensor, thus the purposes of reducing the indoor temperature and keeping the temperature constant are achieved by controlling the frequency of the compressor, the rotation speed of the outdoor fan and various valves, and a conformable indoor environment is provided for the user.
Owner:GD MIDEA AIR-CONDITIONING EQUIP CO LTD

Air conditioner for automatically adjusting air quality and adjusting method thereof

InactiveCN101603702AThe function of automatically adjusting the air quality is perfectImprove air qualityMechanical apparatusSpace heating and ventilation safety systemsAuto regulationTemperature control
The invention discloses an air conditioner for automatically adjusting the air quality and an adjusting method thereof. The air conditioner comprises an indoor air quality sensor, an outdoor air quality sensor, an indoor humidity sensor, an outdoor humidity sensor, an indoor dust sensor, an outdoor dust sensor, an indoor temperature sensor, an outdoor temperature sensor and a ventilating device, wherein the ventilating device is at least provided with a PG motor. In addition, the air conditioner also comprises an air quality control module, a humidity control module, a temperature control module and a ventilating control module, wherein the air quality control module is used for comparing indoor air quality data with outdoor air quality data and for generating and outputting a ventilating signal or a non-ventilating signal; the humidity control module is used for comparing indoor humidity data with outdoor humidity data and for generating and outputting a ventilating signal or a non-ventilating signal; the temperature control module is used for comparing indoor temperature data with outdoor temperature data and for generating and outputting a ventilating signal or a non-ventilating signal; and the ventilating control module is used for starting the PG motor to ventilate under the conditions of simultaneously meeting all the ventilating signals and for turning the PG motor off under the condition of meeting part of the ventilating signals. The invention automatically dehumidifies, humidifies and controls the ventilating amount and has a scientific air quality improving method.
Owner:TCL CORPORATION

Method for automatically detecting lack of refrigerant in air-conditioner

The invention relates to an air-conditioner, in particular to a method for automatically detecting the lack of refrigerant in the air-conditioner. The invention discloses a method for automatically detecting the lack of refrigerant in the air-conditioner in order to solve the problems that the prior art can not automatically detect the fault of the lack of refrigerant or give an alarm to result in high maintenance cost and low maintenance efficiency. The automatic detecting method comprises the following steps of: detecting the difference between the indoor temperature and the temperature of an inner coiled tube, the difference between the outdoor temperature and the temperature of an outer coiled tube and the running current value of a compressor at real time after the air-conditioner runs; and compared with the normal conditions, judging whether the large deviation exists or not so as to judge whether the present refrigerant lacks or not. The invention has the advantages of automatically detecting the fault of the lack of refrigerant in the air-conditioner, immediately giving an alarm, reminding users of the associated maintenance, reducing the maintenance cost and improving the efficiency; and the invention is suitable for detecting whether the air-conditioner lacks of refrigerant or not.
Owner:四川长虹空调有限公司

Control circuit and control method of air-conditioner outdoor draught fan and air-conditioner

The invention discloses a control circuit of an air-conditioner outdoor draught fan. The control circuit comprises an outdoor temperature measurement detecting unit, a condenser pipe temperature detecting unit, a main control unit and a draught fan drive unit. The outdoor temperature measurement detecting unit is used for detecting outdoor environment temperature values when the air-conditioner outdoor draught fan is operated; the condenser pipe temperature detecting unit is used for detecting outdoor condenser coil pipe temperature values when the air-conditioner outdoor draught fan is operated, the main control unit is used for confirming a adjustment range of the rotating speed of the outdoor draught fan according to the outdoor environment temperature values, confirming the initial gear values in the adjustment range of the outdoor draught fan, comparing the outdoor condenser coil pipe temperature values with preset reference temperature, confirming rotating speed adjustment gear values in the adjustment range of the outdoor draught fan, and outputting corresponding rotating speed commands to the draught fan drive unit according to the initial gear values or adjustment gear values; and the draught fan drive unit drives the outdoor draught fan load according to the control commands to adjust the outdoor draught fan to operate in a corresponding speed. The invention further provides an air-conditioner containing the control circuit and a control method of the air-conditioner outdoor draught fan. The control circuit of the air-conditioner outdoor draught fan is low in cost and more stable in system.
Owner:GD MIDEA AIR-CONDITIONING EQUIP CO LTD +1

Self-cleaning control method for air conditioners

The invention discloses a self-cleaning control method for air conditioners. The self-cleaning control method includes enabling the air conditioners to detect outdoor environmental temperatures, detecting the temperatures of inlets and outlets of outdoor heat exchangers or detecting the cumulative run time of compressors; enabling the air conditioners to carry out heating running to allow frost to condense on the outdoor heat exchangers when the outdoor environmental temperatures are lower than or equal to preset outdoor temperatures and temperature difference between the inlets and the outlets of the outdoor heat exchangers is lower than or equal to preset temperature difference or the cumulative run time of the compressors is longer than or equal to preset run time; switching the air conditioners into a refrigerating mode. The self-cleaning control method for the air conditioners has the advantages that the air conditioners carry out heating running to allow the frost to condense on the outdoor heat exchangers and then are switched into the refrigerating mode to defrost the outdoor heat exchangers, accordingly, dust accumulated on the outdoor heat exchangers can be cleaned by condensed water generated after the outdoor heat exchangers are defrosted and can be effectively reduced, heat exchange effects of the air conditioners can be effectively improved, and energy consumption can be reduced.
Owner:MIDEA GRP CO LTD

Control method and device for improving heating speed of air conditioner

The invention provides a control method and device for improving heating speed of an air conditioner. The method comprises the following steps of: collecting the temperature of an indoor coil pipe when the air conditioner is at a standby state and an outdoor air temperature is less than or equal to a first outdoor temperature and an indoor temperature is less than or equal to the first indoor temperature; preheating the indoor coil pipe when the indoor coil pipe temperature is less than the first set temperature: starting up a compressor for preheating the indoor coil pipe, and stopping the compressor until the indoor coil pipe temperature is greater than or equal to a first set temperature, and delaying to stop an outdoor fan; and preheating the indoor coil pipe repeatedly when the indoor coil pipe temperature is less than a second set temperature. The control device comprises a starting module, a determination module and a preheating module, wherein the determination module is used for comparing the indoor coil pipe temperature and the preset temperature; and the preheating module controls the starting and stopping of the compressor according to the determined result so as to preheat the indoor coil pipe repeatedly. According to the invention, the heating speed of the air conditioner can be improved, and the effect that heating can be carried out once the air conditioner is started up is realized.
Owner:QINGDAO HAIER JIAOZHOU AIR CONDITIONER

Dynamic climate compensation method for centralized heating

The invention discloses a dynamic climate compensation method for centralized heating. Firstly, the outdoor temperature is predicted, water supply and return temperatures are adjusted some time ahead according to the predicted value of the outdoor temperature, and the hysteresis of pipe network adjustment in the manner that adjustment is performed while sampling is overcome. The outdoor temperature of the next day is predicted according to local historical meteorological data and weather forecast of the meteorological department, and the value is used as basic data for prediction of a thermal load; and then the thermal load is predicted, that is, the thermal load curve of the next day is calculated according to the outdoor temperature. With the method, the outdoor temperature is reasonably predicted so as to realize advanced dynamic adjustment of a climate compensator; heating medium parameters of a heating system are adjusted by the aid of an adjusting model according to the thermal load value set in advance, a heat source is changed from original wide passive heating into active heating, on the premise that the indoor temperature for the user is stable, the operation adjusting indictor of the heating system within the specified time are given in advance, the heating efficiency is improved, and the heating energy consumption is reduced.
Owner:石家庄华浩能源科技有限公司

Humiture automatic control device and method

The invention discloses a device which can automatically control temperature and humidity, as well as the method thereof. The device of the invention comprises an air conditioner, a damping machine, a dehumidifying machine, a ventilation system, a constant temperature lamp, a constant humidity lamp, a display and a printer, as well as a central control system which is connected with the air conditioner, the damping machine, the dehumidifying machine, the ventilation system, the constant temperature lamp, the constant humidity lamp, the display and the printer. The method of the invention comprises the following steps: the indoor temperature and the indoor humidity which need to be controlled are determined and the maximum and the minimum of the temperature and the maximum and the minimum of the humidity are set according to the needs, and the indoor and the outdoor temperature and the indoor and the outdoor humidity are measured; whether the ventilation system, the air conditioner, the damping machine and the dehumidifying starts or set under the constant temperature or constant humidity state is judged according to the indoor temperature and the indoor humidity which need to be controlled as well as the difference between the maximum and the minimum of the temperature and the maximum and the minimum of the humidity which are set and the indoor and the outdoor temperature and the indoor and the outdoor humidity; the ventilation system, the air conditioner, the damping machine and the dehumidifying are started or set under the constant temperature or constant humidity state according to the judgment of the result.
Owner:袁宣贵

Aggregation air conditioning load scheduling method based on temperature set value adjustment

The invention discloses an aggregation air conditioning load scheduling method based on temperature set value adjustment. The method comprises the following steps: (1) acquiring the temperature set value and outdoor temperature prediction value of each air conditioner aggregation group through a bilateral information channel; (2) adjusting and estimating the load increase/decrease scheme of each air conditioner aggregation group based on the temperature set values; (3) acquiring a load increase/decrease target issued by a superior scheduling department; (4) establishing an aggregation air conditioner scheduling decision model, and solving; (5) issuing an air conditioner control command through the bilateral information channel. By adopting the aggregation air conditioning load scheduling method, load increase/decrease service can be provided for electric power system scheduling on the premise of not influencing the user comfort by using air conditioning equipment of a user, so that the user turns from an electric energy user to a participant of an electric power system and participates in running of the electric power system; meanwhile, by using the method, technical guidance can be provided for the innovation of the scheduling mode of a power grid scheduling department.
Owner:SOUTHEAST UNIV

Control method of air conditioner

The invention belongs to the field of air conditioner control, and particularly relates to an energy-saving control method of an air conditioner. By using the control method of the air conditioner provided by the invention, outdoor environment temperature and indoor temperature are detected in real time, the magnitude between the outdoor real-time temperature and a preset outdoor temperature threshold is judged, under a refrigeration mode and the condition that the outdoor real-time temperature is smaller than the outdoor temperature threshold, or under a heating mode and the condition that the outdoor real-time temperature is larger than the outdoor temperature threshold, the air conditioner is controlled to operate according to the mode that a target temperature T1 is the sum of the indoor real-time temperature and the preset temperature difference; otherwise the air condition operates according to the originally set temperature. By using the control method, the operation parameters of the air conditioner can be automatically adjusted anytime, a user is prevented from operating the air condition frequently, the temperature is controlled in the optimum comfortable state, the refrigeration and heating requirements of the user can be met, electricity can be saved, and environment is protected.
Owner:GD MIDEA AIR-CONDITIONING EQUIP CO LTD

Air conditioner temperature control method and air conditioner temperature control system

The invention provides an air conditioner temperature control method and an air conditioner temperature control system, wherein the method includes the following steps: indoor environment temperature and outdoor environment temperature are detected; which one of a plurality of preset temperature ranges the outdoor environment temperature lies is judged, and the temperature relation between target temperature and the outdoor environment temperature corresponding to the preset temperature range is obtained; according to the temperature relation, the target temperature is calculated; the relation between the target temperature and the indoor environment temperature is judged, and according to a judgment result, the operating state of a compressor is controlled; the target temperature increases as the outdoor environment temperature increases. The regulable range of indoor environment temperature is wider, corresponding temperature control curves are adopted for the different preset temperature ranges, the change of outdoor environment temperature can be more accurately reflected by an indoor environment, the difference between indoor temperature and outdoor temperature is small, users can be more easily adapted to the change of the difference between indoor temperature and outdoor temperature, the occurrence of air-conditioning diseases such as dizziness, sunstroke and cold can be prevented, and comfort is good.
Owner:GREE ELECTRIC APPLIANCES INC

Air conditioner control method and air conditioner

The invention provides an air conditioner control method and an air conditioner. The method comprises the following steps: when receiving an operation mode command of a one-key control key, collecting an outdoor environment temperature detected by an outdoor temperature sensor; judging the sizes of the outdoor environment temperature, a first pre-set temperature and a second pre-set temperature; if the outdoor environment temperature is more than or equal to the first pre-set temperature, controlling the air conditioner to carry out a refrigeration operation mode; if the outdoor environment temperature is less than or equal to the second pre-set temperature, controlling the air conditioner to carry out a heating operation mode; and if the outdoor environment temperature is more than the second pre-set temperature and smaller than the first pre-set temperature, controlling the air conditioner to carry out mode judgment according to an air conditioner standby state, the outdoor environment temperature, an indoor environment temperature and a remote control set temperature. A remote controller or the indoor unit is provided with the one-key control key so that the air conditioner can automatically select the operation mode when a consumer presses the key; the air conditioner is simple and convenient to operate, so that the consumer can enjoy the convenience of one-key control and the comfort of products is improved.
Owner:GREE ELECTRIC APPLIANCES INC
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