9results about How to "Reduce indoor temperature fluctuations" patented technology

The utility model discloses a rock wool calcium chloride hexahydrate-based high-temperature-resistant energy-storage thermal-insulation wallboard, which relates to the technical field of thermal-insulation wallboards and comprises a building block, masonry layers are arranged on the surfaces of two sides of the building block, and a first thermal-insulation mortar layer and a second thermal-insulation mortar layer are respectively arranged on the surfaces of two sides of the building block. A first anti-crack layer is arranged on the outer surface of the first thermal insulation mortar layer, a second anti-crack layer is arranged on the outer surface of the second thermal insulation mortar layer, a first modification layer is arranged on the outer surface of the first anti-crack layer, and a second modification layer is arranged on the outer surface of the second anti-crack layer. The occurrence time of indoor peak temperature is delayed, and indoor temperature fluctuation is reduced.

The invention discloses an air conditioner and a control method and device thereof, a storage medium and a computer program product. The method comprises the steps that after the air conditioner is started, whether a fresh air ventilator needs to be started or not is determined by combining at least one of indoor air quality parameters of the air conditioner and user instructions of the air conditioner, and the target air gear of the fresh air ventilator is determined; and after the fresh air ventilator is started, the running air gear of the fresh air ventilator is controlled or the running air gear of the fresh air ventilator is controlled and the running frequency of a compressor is controlled in combination with at least one of the current running mode of the air conditioner, the user instruction of the air conditioner, the indoor environment temperature of the air conditioner, the outdoor environment temperature of the air conditioner and the target air gear of the fresh air ventilator. According to the scheme, whether the fresh air ventilator is started or stopped and the target air gear is determined according to the indoor air quality and the user instruction, the operation air gear and the compressor frequency of the fresh air ventilator are adjusted according to the indoor environment temperature, the outdoor environment temperature and the set temperature, indoor temperature fluctuation is reduced, and indoor comfort is improved.

The utility model discloses a multi-split air-conditioning parallel system without stopping an indoor fan during defrosting, which relates to the field of air-conditioning systems and comprises a plurality of indoor units arranged in parallel, a defrosting system and a heat supply system, the defrosting system and the heat supply system are respectively connected with the indoor units in parallel, the defrosting system operates at low frequency, and the heat supply system operates at high frequency to ensure sufficient refrigerant. During defrosting, one outdoor unit switches the four-way valve to defrost, and other outdoor units still operate in a normal heating mode; in this way, through effective control, the outdoor units are sequentially defrosted, continuous heat supply can be achieved, it is guaranteed that the indoor unit fan does not stop due to cold air, and the comfort of the indoor environment is guaranteed.

This invention discloses a phase change energy storage power device specifically for air source heat pumps, relating to the field of heat pump energy utilization technology. It includes an air source heat pump unit, a heating water supply pipeline, a phase change energy storage heat exchange unit, and an electrically controlled on / off valve assembly. The heating water supply pipeline includes an air conditioning return water pipe and an air conditioning supply water pipe. The inlet end of the air source heat pump unit is connected to the air conditioning return water pipe, and the outlet end of the air source heat pump unit is connected to the air conditioning supply water pipe. The first end of the phase change energy storage heat exchange unit is connected to the air conditioning return water pipe, and the second end of the phase change energy storage heat exchange unit is connected to the air conditioning supply water pipe. The phase change energy storage heat exchange unit is connected in parallel with the air source heat pump unit. The electrically controlled on / off valve assembly is used to control the on / off of the air conditioning return water pipe and the pipelines at both ends of the phase change energy storage heat exchange unit. This invention enables the storage of a large amount of heat in a small volume, saves space, has low operating costs, and provides stable outlet water temperature.

The invention relates to the technical field of air conditioners, and discloses a control method and device for an air conditioner and the air conditioner. The method comprises the steps that when it is determined that the air conditioner reaches a constant-heating defrosting starting condition, the air conditioner enters a constant-heating defrosting mode; the frequency of the compressor is gradually reduced to the set frequency from the initial frequency and then gradually increased to the initial frequency, and the rotating speed of the inner fan is gradually reduced to the minimum heating rotating speed from the first initial rotating speed; when it is detected that the inlet temperature of the evaporator is higher than a preset temperature threshold value, the frequency of a compressor is gradually reduced, and the rotating speed of an inner draught fan is gradually increased; and when it is determined that the air conditioner reaches the constant heating defrosting quit condition, the constant heating defrosting mode is quitted, the frequency of the compressor is recovered to the initial frequency, and the rotating speed of the inner fan is recovered to the first initial rotating speed. According to the method, the problem that the compressor is shut down during constant-temperature defrosting can be reduced, meanwhile, the defrosting time can be shortened, and the defrosting effect is improved.

The invention relates to the technical field of air conditioners, and discloses a defrosting system which comprises a frosting detection device electrically connected with a controller and used for detecting and sending the frosting condition of a heat exchanger to the controller; the controller is electrically connected with the external defrosting device, and the controller is used for triggering the external defrosting device to heat the heat exchanger when the frosting condition is that the heat exchanger is frosted; and the external defrosting device is arranged on the heat exchanger and used for heating the heat exchanger. In this way, the surface of the heat exchanger can be heated, so that frost on the heat exchanger is melted, no refrigerant flows in the reversing mode in the defrosting process, balance does not need to be established again, and the probability of indoor temperature fluctuation can be reduced. The invention further discloses the air conditioner.

The utility model discloses a cold wall system utilizing night sky radiation for refrigeration, which belongs to the technical field of building energy conservation and renewable energy utilization and comprises a water storage plate arranged on the inner side of a wall body, a night sky radiation cooling plate arranged on a roof and a circulating pipeline connected with the night sky radiation cooling plate and the water storage plate. In the daytime, the liquid working medium in the water storage plate absorbs indoor and outdoor heat and stores the heat, the indoor temperature is lowered, and the temperature of the liquid working medium rises. At night, the heated liquid working medium in the water storage plate enters a flow channel in the night sky radiation cooling plate on the roof, heat is released in an infrared long wave radiation mode, the temperature of the liquid working medium is lowered, and the cooled liquid working medium flows into the water storage plate again, absorbs indoor and outdoor heat again and circulates continuously. The advantages of wall heat storage and night sky radiation cooling are utilized, heat load formed by heat transfer of the building wall can be effectively reduced through heat energy transfer and circular flow, indoor temperature fluctuation is reduced, energy consumption is reduced, and indoor comfort is improved.

The invention discloses a control method of an environment adjusting system, the environment adjusting system and a storage medium, and relates to the technical field of environment adjusting systems.The system comprises a heat pump system and a secondary refrigerant circulating system.The heat pump system comprises a first heat exchanger, a second heat exchanger, a refrigerant adjusting module and an indoor unit; the secondary refrigerant circulating system comprises a heat exchange module, gas equipment and indoor end equipment, the heat exchange module is in heat exchange connection with the second heat exchanger, and the method comprises the steps that the heat pump system is controlled to operate in a heating mode; when the heat pump system operates to meet the defrosting condition, the gas equipment is controlled to be started, and the refrigerant adjusting module is controlled to operate so as to prevent a refrigerant from flowing into the indoor unit; and the heat pump system is controlled to be switched to the defrosting mode for operation. The application aims to reduce the indoor temperature fluctuation in the defrosting process of the heat pump system and improve the indoor comfort.

The invention discloses a control method of a heat pump system, the heat pump system and a storage medium. The heat pump system comprises a refrigerant main path, a refrigerant branch path and a switching assembly, the refrigerant branch path comprises an energy storage device, a pipeline between a throttling device and an indoor unit is connected with the first end of the refrigerant branch path, and the second end of the refrigerant branch path, an exhaust port of a compressor and an air return port of the compressor are all connected with the switching assembly. The method comprises the steps that the reversing assembly is controlled to operate in a first state so that the indoor unit can communicate with the exhaust port, the outdoor heat exchanger can communicate with the air return port, and the switching assembly is controlled to operate in a third state so that the second end of the refrigerant branch can communicate with the exhaust port. And when the operation of the heat pump system reaches the defrosting starting condition, the reversing assembly is controlled to operate in a second state so that the outdoor heat exchanger can communicate with the exhaust port, and the switching assembly is controlled to operate in a fourth state so that the second end of the refrigerant branch can communicate with the air return port. The invention aims to improve the indoor comfort and defrosting efficiency during defrosting operation of the heat pump system.