360results about How to "Improve thermal comfort" patented technology

The invention discloses an air conditioner load control system based on personnel information detection. The air conditioner load control system comprises a BP neural network module used for completing training and predicting the air conditioner load quantity and further comprises a personnel information detection module used for detecting personnel information within the air conditioner working range. The personnel information comprises the personnel types and the corresponding quantities. The BP neural network module is provided with a corresponding relation between an air conditioner load and the personnel information. The invention further discloses an air conditioner load control method based on personnel information detection. According to the air conditioner load control system and method based on personnel information detection, compared with other personnel number acquisition technologies used for air conditioner load predicting, the personnel load requirement difference can be better analyzed, and the air conditioner load control system and method have very important significance for precise load management and control, internal personnel thermal comfort strengthening and comfortable artificial environment creating.

A virtual thermostat to control an air condition of any target zone in an HVAC controlled space. The thermostat comprising of a 3D scanner to provide a 3D point cloud of the controlled space; a CAD-application algorithm to modify the point cloud into a 3D model of the space; a control panel for a user to input a set of boundary and initial conditions and a desired air condition at the target zone inside the controlled space; a fluid flow software having means to read said 3D model and to determine a spatial velocity and temperature distributions throughout the controlled space, and to calculate an average temperature for the target zone in the controlled space; a control system to manage the air inlet flow to control the temperature at the target zone in the controlled space by comparing the calculated average temperature of the target zone with a user defined temperature and to turn the HVAC system ON and OFF.

The invention provides a system and a method for evaluating the building hot and humid environment levels. Different evaluating methods can be selected according to different building cold and heat source types; the system and the method are applicable to artificial cold and heat source buildings and non-artificial cold and heat source buildings; the building hot and humid environment levels and the building indoor comfortable temperature range can be objectively obtained; the indoor hot comfortable environment can be favorably and effectively improved; and the building energy consumption is reduced. The building hot and humid environment levels in different regions, different seasons, different buildings and different environments can be judged, and the evaluating method is more comprehensive.

The invention relates to an air-conditioner control system based on skin temperature measurement. The air-conditioner control system based on the skin temperature measurement comprises an infrared thermometer, a temperature sensor, an infrared thermometer orientation controller, an air-conditioner air-speed temperature controller, connecting wires and an alarm, wherein the infrared thermometer is connected with a rubber washer through a base, the infrared thermometer orientation controller is respectively connected with the infrared thermometer, the base and the air-conditioner air-speed temperature controller through the connecting wires, and the air-conditioner air-speed temperature controller is respectively connected with an air conditioner, the infrared thermometer, the temperature sensor, the infrared thermometer orientation controller and the alarm through the connecting wires. The air-conditioner control system based on the skin temperature measurement controls operating parameters of the air conditioner through the measurement of human body temperature and the measurement of indoor environment temperature, is beneficial to improving human body heat comfort and sleeping quality, and improves human health. When difference between the human body temperature and the indoor environment temperature is large, the alarm is automatically started, and a fever phenomenon of a human body in a sleeping process is discovered early. The air-conditioner control system based on the skin temperature measurement is reasonable in design, and simple in structure.

The invention discloses a novel kitchen air conditioner. The novel kitchen air conditioner comprises a cooking bench, a range hood, and an air blower, an air supplementer and a dew point indirect evaporative cooler which are connected through a pipeline, wherein a tee is arranged on the pipeline so as to form two branches, namely a trunk channel formed by connecting the air blower to the dew point indirect evaporative cooler, and the other branch formed by connecting the air blower to the air supplementer; valve control devices are arranged on the two branches; the air supplementer is arranged at the bottom of the cooking bench; the air supplementer is provided with an air supplementing port communicated to the bench surface of the cooking bench; the air supplementing port is rightly aligned with an air suction port of the range hood; the dew point indirect evaporative cooler is arranged inside the range hood. In combination with a special functional structure of a kitchen of a house, the novel kitchen air conditioner combines the dew point indirect evaporative cooler, the range hood and the cooking bench to introduce cooled outdoor fresh air, thereby improving the air quality and the thermal environment of the kitchen and improving the working environment of people.

The invention discloses a frostless air source heat pump device and method based on membrane method dehumidification and indoor regeneration humidification. The frostless air source heat pump device comprises a refrigerant circulation loop and a solution dehumidification/humidification circulation loop. The refrigerant circulation loop comprises a compressor (1), a four-way reversing valve (2), an indoor heat exchanger (3), a regeneration condenser (4), a throttling valve (5) and an outdoor heat exchanger (6) which are sequentially connected together in series through a first communication pipeline. The solution dehumidification/humidification circulation loop comprises a heat recovery heat exchanger (10), a regeneration condenser (4), an indoor humidification membrane assembly (11), a heat recovery heat exchanger (10), an outdoor dehumidification membrane assembly (7) and a dehumidification solution storage tank (8). According to the frostless air source heat pump device and method based on membrane method dehumidification and indoor regeneration humidification, outdoor air latent heat is converted into sensible heat through the dehumidification membrane assembly, frosting is avoided, and moisture introduced through a dehumidification solution is regenerated and used for indoor humidification.

The invention discloses an air conditioning system startup and shutdown control device based on an indoor heat comfort state and a control method. The device comprises an indoor data acquisition device, an outdoor data acquisition device, a computation controller and an electric valve. The indoor data acquisition device and the outdoor data acquisition device respectively comprise a temperature sensor, a humidity sensor, a black-bulb temperature sensor and a wind speed sensor, are respectively connected with a data inlet end of the computation controller, and form linkage control together with the electric valve. The computation controller is loaded with an adaptive predicted mean vote computation and comparison program. The electric valve is connected with the computation controller through a data connecting line and is connected with an original air condition system control box through a conducting wire. The control method of the device disclosed by the invention comprises the steps of comparing with an adaptive predicted mean vote obtained by the computation controller, giving out, by the computation controller, an action instruction to the electric valve, and then controlling the startup and shutdown of an indoor air conditioning system and the turning-on and turning-off of the indoor data acquisition device and the outdoor data acquisition device.

The invention provides an air conditioner control system based on dynamic heat comfort. The air conditioner control system based on dynamic heat comfort comprises an intelligent air speed regulation module, a intelligent temperature regulation module, a manual regulation module and a memory module. The air conditioner control system based on dynamic heat comfort is characterized in that the intelligent air speed regulation module comprises an instantaneous air speed function of a PMV of a target area in a [-0.5,+0.5] interval according to dynamic changes of the air speed, the intelligent temperature regulation module comprises an instantaneous temperature function of the PMV of the target area in the [-0.5,+0.5] interval, and the instantaneous air speed function and the instantaneous temperature function of the target area are in linkage control; the intelligent air speed regulation module is used for controlling and regulating the air supplying speed according to the set air speed function of the target area; the intelligent temperature regulation module is used for controlling and regulating the air supplying temperature according to the set temperature function of the target area; the manual regulation module is used for regulating and controlling the indoor temperature; the memory module serves as a device for memorizing the last-time using state of an air conditioner.

The invention discloses an air conditioner and a control method and device of the air conditioner. The air conditioner comprises an indoor unit. The indoor unit comprises a machine shell, an air handling module, multiple sets of air inlet adjusting assemblies and a switching valve. An air conditioning air flue is defined in the machine shell, and an air inlet is arranged on the machine shell. An upper air inlet area and a lower air inlet area are formed by the air inlet. The air handling module comprises a shell. A fresh air flue is defined in the shell. The method comprises the following steps that when the air conditioner operates by starting a heating mode, the air inlet is adjusted to be in the maximum air inlet state through the multiple sets of air inlet adjusting assemblies; the airinlet temperatures of the upper air inlet area and the lower air inlet area are acquired, and the temperature difference value is acquired; when the operation time reaches the first preset time, thetemperature difference value is judged; and if the temperature difference value is larger than the first preset temperature difference, the switching valve is controlled so as to control the air conditioning air flue to communicate with the fresh air flue, so that the indoor vertical temperature difference is reduced. The indoor heating power lamination phenomenon during heating operation of the air conditioner is effectively relieved, and therefore the indoor heat comfort is improved.

The invention discloses a control method and device of an air-conditioner, a storage medium and the air-conditioner. The method includes the steps that the comfort state of a user and human body activity area features in a space where the air-conditioner is located are obtained; operation parameters of the air-conditioner are controlled according to the comfort state and the human body activity area features; and the operation parameters include the rotating speed of an air guiding mechanism of the air-conditioner. By means of the scheme, the problem that the human body comfort is poor in a mode of detecting the environment temperature, humidity and the like to control operation of the air-conditioner can be solved, and the effect of improving human body comfort is achieved.

The invention discloses a control method and device of an air conditioner, a storage medium and the air conditioner. The method includes the steps that the frosting amount of an outdoor heat exchangerof the air conditioner is determined, wherein the frosting amount of the outdoor heat exchanger comprises the frost layer thickness of the outdoor heat exchanger; if the frost layer thickness of theoutdoor heat exchanger belongs to a set defrosting frost layer thickness range, the air conditioner is controlled to be switched into a defrosting manner from a heating manner; if the frost layer thickness of the outdoor heat exchanger belongs to a set non-defrosting frost layer thickness range, the heat comfort state of an indoor environment of the air conditioner is determined; and the air conditioner is controlled to continue to be subjected to heating operation in the heating manner according to the heat comfort state of the indoor environment or be switched into the defrosting manner fromthe heating manner. By means of the scheme, the problems that whether defrosting is carried out or not is judged according to the temperature of the outdoor heat exchanger or the difference between the temperature of the outdoor heat exchanger and the temperature of an outdoor environment, when defrosting exists, the indoor temperature drop is large, and therefore the defrosting heat comfort is poor can be solved, and the effect of improving the defrosting heat comfort is achieved.

The invention relates to a composite air-conditioning system combining an air source heat pump system and a rotating wheel dehumidification system. The composite system comprises a heat pump system and a rotating wheel dehumidification system; the dehumidifier unit consists of a dehumidification rotating wheel, a heat exchange rotating wheel, an evaporator, a heater, an air refreshing machine andan exhaust fan; and the heat pump unit consists of equipment such as a frequency conversion compressor, an outdoor heat exchanger, an indoor heat exchanger, a gas-liquid separator, a four-way change valve and the like. The composite air-conditioning system is combined with indoor radiant heating and cooling, and by means of controlling an electronic expansion valve, an electromagnetic valve, a one-way valve and a constant pressure valve, two vaporization temperature operation conditions are realized; and a dehumidification rotating wheel, a heat exchange rotating wheel, and the outdoor heat exchanger and the indoor heat exchanger of the heat pump unit are combined, the high temperature waste heat of the exhaust air of the compressor is used as the renewable energy for the dehumidificationrotating wheel, and part of cold of the heat pump is used for cooling the refreshed air, thus the performance of the dehumidifier unit is improved.

The invention discloses an air conditioner, a control method and device thereof, a storage medium and a processor. The control method of the air conditioner comprises detecting the current ambient temperature; determining a control parameter for controlling at least two air outlets of the air conditioner according to the current ambient temperature; controlling the air conditioner to output a corresponding air flow distribution mode according to the control parameter. By means of the air conditioner, the control method and device thereof, the storage medium and the processor, the effect of improving the control efficiency of the air conditioner is achieved.

The invention discloses an active fault diagnosis method for a variable air volume air handling unit. The method comprises the steps of data communication, fault diagnosis based on expert rules and active fault diagnosis. In the step of data communication, real-time operation data of the variable air volume air handling unit is obtained from a central processing unit of an EMCS system through VB language and an OPC client side. In the step of fault diagnosis based on expert rules, if the temperature difference between the measurement value of air supply temperature and the set value of air supply temperature is larger than 1.5 DEG C, the measurement value of the opening of a water valve of a surface cooler is smaller than 95%, and the keeping time is longer than 30 min, it is judged that a surface cooler water valve fault exists on a variable air volume air conditioner system. In the step of active fault diagnosis, the faults with various fault reasons in fault symptoms are detected through expert rules, the variable air volume air handling unit enters the preset the active fault diagnosis step, potential fault reasons are eliminated successively, and the faults of the variable air volume air handling unit are separated and diagnosed.

The invention discloses a heat pump type automobile air conditioning system, which comprises a main heating loop and a motor waste heat heating loop, wherein the main heating loop comprises a compressor, a first plate type heat exchanger, a first electromagnetic three-way valve, a first electronic expansion valve, a second electromagnetic three-way valve, a vehicle exterior heat exchanger, a thirdelectromagnetic three-way valve, a first three-way valve and a gas-liquid separator, which are connected in sequence; the motor waste heat heating loop comprises a motor, a fourth electromagnetic three-way valve, a second plate type heat exchanger, a fifth electromagnetic three-way valve, a first water pump, a charging system, a power converter and a motor control system, which are connected in sequence, wherein the second plate type heat exchanger is connected to the second electromagnetic three-way valve and the first three-way valve. According to the heat pump type automobile air conditioning system, the waste heat of the motor can be fully utilized for heating, so that the resources are saved.

The invention discloses a building energy saving and heat preserving method and a hollow block. The method is characterized in that a phase-change gypsum board is additionally arranged in the surface of a building outer wall hollow concrete block toward the outside; in the daytime, the phase-change gypsum board is subjected to phase-change melting by absorbing the solar radiation energy and then adsorbs the latent heat to improve the thermal inertia of the wall, so that the traditional constant-property thermal insulation materials are replaced or partially replaced when the peak time of the indoor temperature wave is postponed, the heat insulating property of the wall is improved, the action of the external disturbance on the indoor thermal and humid environment is effectively retarded, the running time and the load of air conditioning equipment are decreased, the energy sources are effectively saved and the indoor thermal comfort of the buildings is improved; at night, the phase-change gypsum board releases heat outwards and the heat is changed from liquid to solid so as to realize regeneration. According to the building energy saving and heat preserving method and the hollow block, the structure is simple, the manufacturing is convenient and the energy-saving effect is good.

The embodiment of the invention provides an air conditioner energy-saving control method and device, relates to the technical field of air conditioners, and aims to adjust an indoor environment to a comfort optimal state while lowering energy consumption and indoor environmental pollution. The method comprises the following steps: receiving a first selection instruction input by a user, wherein the first selection instruction indicates that a running mode of an air conditioning system is a cooling mode or an air blowing mode; if the first selection instruction indicates that the running mode of the air conditioning system is the cooling mode or the air blowing mode, judging whether the air blowing mode of the air conditioning system is a natural wind simulation mode or not; if the air blowing mode of the air conditioning system is the natural wind simulation mode, acquiring a thermal comfort index value of a human body; if the thermal comfort index value of the human body is not within a preset range, adjusting the temperature of the indoor environment and the fan speed of the air conditioning system till the thermal comfort index value of the human body is within the preset range. Embodiments of the invention are applied to a central air conditioner.

An intelligent heat exchanging station secondary network average temperature control method includes the steps as follows, relevant parameters of a heat exchanging station are acquired; historical data are acquired, and the relationship between secondary network average temperature and outdoor temperature is obtained; actually measured data of an actual heat supplying building are acquired; the secondary network average temperature Tw2arg is calculated; the equivalent outdoor temperature Toe is calculated; a secondary network average temperature set value Tw2argsp is calculated; a secondary network average temperature error eTw2arg is calculated; an indoor temperature set value Tzsp is given; an indoor temperature departure eTz is calculated; two error weight w1 and w2 are set; a dual-weight error value eT is calculated; a heat exchanging station secondary network average temperature PI controller output signal u is calculated; the output signal u of a secondary network average temperature PI controller is calculated through the secondary network average temperature PI controller, the calculated output signal u is transmitted to a primary side electric adjusting value of the heat exchanging station; and control operation is executed, the opening degree of the electric adjusting valve is adjusted, and the dual control requirements of the secondary network average temperature andthe indoor temperature are met.

The invention discloses an air conditioner control method and device and an air conditioner unit with the air conditioner control device. An air conditioner is operated in a refrigeration mode. The method comprises the steps that a compressor in the air conditioner is recognized to be operated at the lowest operation frequency; the temperature difference between the current indoor environment andthe set temperature of the air conditioner is obtained; and the temperature difference is compared with a preset first threshold value, and if the temperature difference is smaller than or equal to the first threshold value, the air conditioner is controlled to reduce output of the refrigerating capacity. Accordingly, the compressor is prevented from being frequently started and stopped, energy issaved, reliability of the compressor is improved, indoor heat comfort is improved, and the technical problem that the output refrigerating capacity of the air conditioner operated at the lowest frequency is larger than the indoor practically-required refrigerating capacity in the prior art is solved.

The invention relates to the technical field of air conditioning, and discloses a roof-distributed multi-air-port synergistic individualized air supply method and an air supply system. The air supplymethod comprises the following steps of determining an extremity action radius Rw of a single independent air port and a coverage radius Rs during independent use; setting the layout of air ports; fitting a relation between air supply parameters of the air ports, the indoor environment temperature, actual air supply parameters, the distances d between users and the air ports and thermal preferences TP of the users according to multiple example results simulated by CFD; dividing the interior of a room into three kinds of areas; measuring positions of the users and partition types to which the users belong; determining the thermal preferences TP of the users; judging whether or not multiple users exist in each area, and if yes, regarding the users with low TP values as objects; determining the distances d between the users and the acting air ports; determining the air supply flow and air supply angle of each air port, implementing the decision through a control system, and conducting comfortable air supply meeting the individualized thermal preference requirements of the users. By means of the roof-distributed multi-air-port synergistic individualized air supply method and the air supply system, a comfortable environment is quickly provided, and the energy is saved.