117results about How to "Stable indoor temperature" patented technology

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.

The invention discloses a fresh air machine with a temperature compensation function and relates to the field of air purification. The fresh air machine comprises an outdoor unit and an indoor unit, the outdoor unit is a heat exchange system comprising a compressor, and the indoor unit is an air purification adjustment portion and comprises an air quality testing portion, an air purification portion and a temperature adjustment portion; the air quality testing portion comprises a PM (particulate matter) 2.5 sensor, a TVOC (total volatile organic compound) sensor, a CO2 sensor, a temperature and humidity sensor and the like; the air purification portion comprises an initial effect filter, an electrostatic dust collector, an activated carbon filter, an efficient filter and a light catalyst component; the temperature adjustment portion refers to heat exchange fins connected with the outdoor unit. Indoor air can be purified manually or according to indoor air quality testing values, the indoor air temperature can also be regulated, air is purified, and meanwhile, comfortable temperature is provided.

The invention discloses a defrosting control method, which comprises the steps of when an air conditioner operates at a heating mode, judging whether defrosting is required or not; if defrosting is not required, controlling the air conditioner to keep at the heating mode; if defrosting is required, controlling the air conditioner to switch the heating mode into a defrosting mode, controlling an operating mode of a four-way valve to be unchanged, controlling a compressor and an indoor fan to work continuously, switching on a refrigerant heating device to heat a refrigerant flowing into a condenser, and switching off an outdoor fan; and when the air conditioner is at the defrosting mode and reaches first preset time, switching off the refrigerant heating device, switching on the outdoor fan, and controlling the air conditioner to operate according to parameters corresponding to the heating mode. The invention further discloses a defrosting control device and the air conditioner. According to the defrosting control method, the defrosting control device and the air conditioner provided by the invention, during a whole heating, defrosting and heating period operation process, the compressor operates continuously, and the refrigerant continuously releases heat indoors when flowing through an evaporator, so that indoor temperature can remain stable.

The invention relates to a vertical fresh air fan for heat recovery, comprising a cabinet, wherein an independent fresh air suction area, a secondary fresh air filtering area, a fresh air discharge area, a stale air discharge area, a stale air suction air and a heat exchange area are arranged in the cabinet; a first filter used for filtering outdoor air is inlaid in the fresh air suction area; an electrostatic precipitator and a fresh air fan are inlaid in the secondary fresh air filtering area, wherein the electrostatic precipitator is used for filtering fresh air passing through the first filter again, and the fresh air fan is used for discharging the fresh air passing through the electrostatic precipitator to the fresh air discharge area; a second filter used for carrying out third level of filtering on the fresh air discharged from the fresh air fan is inlaid in the fresh air discharge area; an exhaust fan used for discharging indoor stale air to the outside is inlaid in the stale air discharge area; and a plate heat exchanger used for carrying out energy exchange between the fresh air and/or the stale air is inlaid in the heat exchange area. The fresh air fan is high in filtering efficiency, capable of preventing blockage, large in fresh air inlet space, good in energy saving effect and strong in universality.

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 relates to heating control technologies, aims to solve the problem that the existing air source heat pump hot water unit causes poor indoor temperature stability due to change of external environment temperatures, and provides a heating control system and method. According to the technical scheme, the heating control system comprises a processing unit and a temperature acquisition module and a setting module, wherein the temperature acquisition module and the setting module are connected to the processing module, and the setting module is used for a user to set an initial set temperature of a water tank according to the demand of the indoor temperature; the temperature acquisition module is used for acquiring an current external environment temperature and a current water temperature of the water tank; the processing module is used for connecting a controlled water tank. The needed indoor temperature is obtained according to the initial set temperature and the current external environment temperature, when the heating control system runs, a corresponding water tank target temperature is obtained according to current external environment processing, the water temperature in the controlled water tank is adjusted to a target temperature of the water tank, and thus the indoor temperature is kept at the needed indoor temperature. The heating control system and method has the advantages of bringing convenience to users, and the system is suitable for the air source heat pump hot water unit.

The invention relates to a climate compensation controller of a heating system. The heating system comprises a heat source and a plate heat exchanger. The climate compensation controller comprises a control module, a human machine interface module, an A/D converter and a temperature sensor, wherein the human machine interface module is connected with the communication interface of the control module; the A/D converter is connected with the input and output interface of the control module; and the temperature sensor is connected with the input interface of the A/D converter. The heat source is connected with the plate heat exchanger through a water supply pipe and a water-returning pipe; a bypass pipe is arranged between the water supply pipe and the water returning pipe; a solenoid valve is arranged at the connection place of the water supply pipe, the bypass pipe and the plate heat exchanger; and the solenoid valve is connected with the output interface of the A/D converter. The climate compensation controller of the heating system provided by the invention can adjust the temperature of the outlet water of the heat supply in real time according to the dynamic change of outdoor climate to keep the indoor temperature stable and comfortable. The climate compensation controller is the climate compensation controller with advanced control technology, which reduces the fuel consumption at the warm climate.

The invention discloses a floor heating system with a variable-frequency air source heat pump. The floor heating system is characterized by comprising a variable-frequency air source heat pump host machine, a variable-frequency internal machine and a radiant floor heating system arranged below indoor floor, wherein the variable-frequency air source heat pump host machine internally comprises a variable-frequency compressor and variable-frequency electric control equipment, and a refrigerant backflow connector and a refrigerant output connector are arranged on the variable-frequency air source heat pump host machine; the radiant floor heating system comprises a water pipe, the water pipe is arranged at the bottom of the floor and arranged into an S shape, a water inlet of the S-shaped water pipe is connected with a floor heating water supply pipe, and a water outlet of the S-shaped water pipe is connected with a floor heating water return pipe; a plate heat exchanger, a water pump and indoor electric control equipment are arranged on the variable-frequency internal machine. The floor heating system with the air source heat pump has the advantages of super-high energy efficiency, good environment friendliness, high safety, comfort, the capability of realizing intelligent control and the like.

The invention relates to the technical field of air conditioners, in particular to an embedded air conditioner, an air discharging control method thereof and a computer readable storage medium. The invention aims to solve the problem that because the embedded air conditioner cannot control the air supply intensity based on the number of indoor persons, the energy waste is caused. To achieve the purpose, the air discharging control method comprises the following steps that 1, in the operation process of the embedded air conditioner, the number of the persons in the indoor environment is obtained; 2, whether a person exists indoors or not is judged based on the number of the persons; 3, when no person exists indoors and the duration of the no-person state is larger than or equal to a presettime threshold value according to the judgment result, the embedded air conditioner is controlled to run in an energy-saving mode; and 4, when the embedded air conditioner operates in the energy-saving mode, the opening and closing of an air deflector and the rotating speed of a fan are controlled based on the duration of the no-person state. According to the air discharging control method, the air discharging intensity can be reasonably adjusted based on the number of the indoor persons, the air conditioner energy consumption when no person exists indoors is reduced, and the energy waste is avoided.

The invention provides a real-time air purification and disinfection system for a public areas and a disinfection method of the real-time air purification and disinfection system. In the process of purifying and disinfecting the air in the public place through a plasma treatment module by the air purification and disinfection system, a carbon dioxide online detection module and an ozone online detection module are used for monitoring the content of carbon dioxide and the content of ozone in air in the public place in real time, fresh air is supplemented in time, air pollution is avoided, the health of indoor personnel and the safety of cardiovascular disease patients are guaranteed; if the air purification disinfection system is popularized and used in a large range, public health safety of public places such as schools and hospitals can be effectively guaranteed, cross infection of virus and bacteria and the like is avoided, large-area infection shutdown and class halt in autumn and winter are prevented, the phenomenon that most people frequently and massively use antibiotics due to fear of infection can be further effectively avoided, drug resistance of bacteria is prevented, anda large amount of national fund for health and epidemic prevention is saved.

The invention discloses a building temperature control method and system based on model predictive control. Based on model predictive control (MPC), the method performs heat supply temperature adjustment, adds prediction of interference in predictive control, and compensates for upcoming ambient temperature changes. The system comprises: an MPC controller for maintaining the room temperature of abuilding at a determined most comfortable temperature value and calculating an optimal heat supply temperature value; a PID controller used for controlling an executing mechanism to respond accordingto the optimal heat supply temperature value and the secondary side water supply and return temperature; an executing mechanism for adjusting the primary side hot water flow of a heat exchanger and controlling the temperature of secondary side hot water through the heat exchanger; a first temperature sensor for collecting the temperature of the secondary side hot water of the heat exchanger and sends the temperature to the PID controller; and a second temperature sensor used for collecting the indoor real-time temperature of the building and sending the indoor real-time temperature to the MPCcontroller. According to the method and the system, the indoor temperature is more stable, the comfort level of a user is improved, and the heat supply energy consumption is remarkably reduced.

The invention relates to the technical field of refrigerators in electrical equipment, particularly a refrigerator with Sabbath function and a control method thereof. The refrigerator with Sabbath function comprises a main control panel module, a refrigerator cold storage chamber temperature sensor connected with the main control panel module, a refrigerator freezing chamber temperature sensor, a compressor, a cold storage door switch detection device, a freezing door switch detection device, a blower and an electric throttle. By adopting the intelligence learning mode, the working mode of the refrigerator is learned, so that the optimum control mode is automatically called after entering the Sabbath mode; and thus, under the condition of not using various sensors, the invention can ensure the indoor temperature in the refrigerator chamber to stay in an ideal state when the external temperature is higher or lower, thereby well preserving food.

The method for determining temperature of return water of central heating system is characterized by that according to the circulating water flow of heating system and outdoor maximum air temperatureand minimum air temperature the "return water temperature-circulating water flow-outdoor temperature" curve diagram can be drawn, then according to indoor and outdoor temperatures said curve diagram can be looked over to determine the temperature of return water of said centre heating system, said invention also provides the principle and method for drawing said curve diagram, and can attain the goal of ensuring heating temperature, saving energy, reducing consumption and reducing pollution.

The invention provides a multi-split air conditioner defrosting method and device, a multi-split air conditioner system and a readable storage medium. The method comprises the steps: judging the on-off state of indoor units, wherein the on-off state comprises shutdown; obtaining the capacity volumes of the indoor units and an outdoor unit after the state is judged, calculating the sum of the capacity volumes of the shutdown indoor units, and calculating the ratio of the sum of the capacity volumes to the capacity volume of the outdoor unit; and controlling the indoor units to enter corresponding defrosting modes according to the ratio. According to the multi-split air conditioner defrosting method and device, the multi-split air conditioner system and the readable storage medium, the state of each indoor unit of the multi-split air conditioner system can be analyzed, the actual use condition of the multi-split air conditioner system is represented through the capacity volume ratio related to the state of each indoor unit, and defrosting control is carried out according to the actual operation condition so that the defrosting control can be fit with the actual use condition of the multi-split air conditioner system, the indoor temperature is kept stable as much as possible during defrosting, and the thermal comfort experience of a user is guaranteed.

The invention provides a ventilating cabinet type air conditioner indoor unit. The ventilating cabinet type air conditioner indoor unit comprises a machine shell, at least one air supplying assembly,a heat exchanger and a ventilating device, wherein the machine shell is provided with a machine shell air inlet and at least one machine shell air outlet, the at least one air supply assembly is arranged in the machine shell, the air supply assembly comprises a centrifugal fan and a volute arranged outside the centrifugal fan, and the centrifugal fan is configured to suck indoor air from the machine shell air inlet and bring the indoor air to be sent to the indoor environment again through the machine shell air outlets; the heat exchanger is arranged on an air inlet main air duct between the volute of the centrifugal fan and the machine shell air inlet, so that the entered indoor air through the machine shell air inlet is subjected to heat exchange with the heat exchanger; and the ventilating device is arranged below the air supply assembly, and comprises an air inlet module and a fan module communicating with the air inlet module, wherein the air inlet module is located at the lower part of the fan module, the at least one air supply assembly is further configured to suck at least part of outdoor fresh air discharged from the ventilating fan from the machine shell air inlet, and the outdoor fresh air is discharged from the machine shell air outlets after heat exchanging with the heat exchanger.

The invention relates to a fresh air fan for heat recovery, comprising a cabinet, wherein an independent fresh air suction area, a secondary fresh air filtering area, a fresh air discharge area, a stale air discharge area, a stale air suction air and a heat exchange area are arranged in the cabinet; a first filter used for filtering outdoor air is inlaid in the fresh air suction area; an electrostatic precipitator and a fresh air fan are inlaid in the secondary fresh air filtering area, wherein the electrostatic precipitator is used for filtering fresh air passing through the first filter again, and the fresh air fan is used for discharging the fresh air passing through the electrostatic precipitator to the fresh air discharge area; a second filter used for carrying out third level of filtering on the fresh air discharged from the fresh air fan is inlaid in the fresh air discharge area; an exhaust fan used for discharging indoor stale air to the outside is inlaid in the stale air discharge area; a plate heat exchanger used for carrying out energy exchange between the fresh air and/or the stale air is inlaid in the heat exchange area; and a fresh air bypass area is arranged between the fresh air suction area and the secondary fresh air filtering area, and a bypass valve is arranged in the fresh air bypass area. The fresh air fan is high in filtering efficiency, capable of preventing blockage, large in fresh air inlet space, good in energy saving effect and strong in universality.

The invention discloses a novel external wall insulation material for a building. Materials are heated for pre-foaming after the materials are mixed uniformly, and then the materials are subjected to extrusion molding in a mould. The materials comprises, by weight, 100 parts of polystyrene resin, 0.7-1.2 parts of a foaming agent, 0.4-0.8 part of a nucleating agent, 0.1-0.3 part of lubricant and 10-15 parts of other auxiliary agents. The novel external wall insulation material for the building is good in strength and has functions of heat insulation, weather-proofing, indoor temperature stability maintenance, moisture-proofing, external wall frosting resistance and the like, so that the service life of the building is prolonged.

The invention discloses a novel defrosting system and a control method thereof. The novel defrosting system comprises a compressor, a four-way reversing valve, an outdoor heat exchanger, an electronic expansion valve and an indoor heat exchanger, an air outlet and an air inlet of the compressor are connected through a second air return pipeline, and an electromagnetic valve device is arranged on the second air return pipeline. A novel defrosting method of an air conditioner includes the steps of (1) thin frost and thick frost detection and judgment, and (2) defrosting: when judgment is thin frost, adopting a thin frost removal mode, and when judgment is thick frost, adopting a thick frost removal mode. By the novel defrosting system and the control method thereof, the thin frost and the thick frost can be distinguished automatically, different defrosting modes are adopted for the thin and thick frost to allow indoor temperature to be more stable, defrosting effect is better, and waiting time of customers is shortened.