55 results about "Fan coil unit" patented technology

The utility model belongs to the technical field of central air conditioners, and relates to a peripheral side air outlet central air conditioner which comprises a machine shell and a panel, the panel covers an opening of the machine shell, the machine shell is sequentially provided with an impeller and a surface air cooler from inside to outside, air outlets are formed in the four side walls of the machine shell respectively, steering blades are rotationally arranged at the air outlets, and the steering blades are arranged on the panel. An air inlet is formed in the panel, the impeller sucks air from the air inlet, passes through the surface air cooler and then is exhausted from the air outlet, the steering blades at least cover part of the air outlet, and the surface air cooler is located at the air outlet. And the common problem that the heating effect is poor due to short circuit of an air flue caused by the fact that the air outlet is too close to the air return opening when a clamping type air disc is used for heating is well solved.

The utility model provides a kind of four disc fan coil unit and air conditioner of electric heating, four disc fan coil unit of electric heating includes: mounting bracket, refrigeration component, heating component and fan.Funnel is formed on mounting bracket;Refrigeration component includes first water inlet, first water outlet and three refrigeration coil modules, three refrigeration coil modules are sequentially arranged along the ventilation direction of funnel;Heating component includes second water inlet, second water outlet, heating coil module and electric auxiliary heating module, heating coil module is in funnel, and electric auxiliary heating module is set in funnel;Fan is set at the air inlet of funnel.Relative to prior art, the four disc fan coil unit of electric heating of the utility model meets the refrigeration demand, and the heating function can meet the heating demand due to the cooperation of heating coil and electric auxiliary heating module, realize accurate temperature control, and user experience is good.

Techniques for attenuating noise in a fan coil unit utilize an air handling apparatus including a heat exchanger, a drain pan or drain system, and a plurality of drain slots. The heat exchanger has a housing with a plurality of walls. Air flows through the housing and across the heat exchanger in a first direction. A drain pan is adjacent to the housing, and is configured to receive condensate drainage from the heat exchanger. The plurality of drain slots extend from at least one of the walls through which condensate drains into the drain pan or drain system. The plurality of drain slots are oriented at an angle relative to the first direction of air flowing through the housing and across the heat exchanger.

The utility model discloses a low-noise cabinet type fan coil unit which comprises a cabinet body, a fan coil, a fan coil and a fan coil, the coil pipe group is arranged in the cabinet body; the rotating shaft is arranged in the cabinet body; the fan blades are arranged on the rotating shaft; an output shaft of the motor is connected with the rotating shaft; the air inlet is provided with a filtering mechanism, the filtering mechanism comprises a filtering plate arranged on the inner wall of the air inlet, a connecting shaft arranged above the filtering plate, a cleaning brush arranged on the connecting shaft, a sliding block arranged at the end of the connecting shaft, a pull rod arranged on the sliding block and a connecting assembly, and a sliding groove matched with the sliding block is formed in the inner wall of the air inlet.

The application discloses a control method and device of an air conditioner and a control system of the air conditioner, and belongs to the technical field of air conditioner control. The fan-coil unit of the air conditioner comprises multiple wind discs, the multiple wind discs comprise a first wind disc which is turned on and a second wind disc which is not turned on, and the control method of the air conditioner comprises the following steps: determining a target number based on a first number of the first wind disc; determining a third wind disc with the target number from the second wind disc; and controlling a two-way valve of the third wind disc to be turned on to a first target opening degree, wherein the third wind disc is used for balancing the pressure difference caused by the first wind disc. According to the method, the number of the third wind disc which needs to be bypassed in the second wind disc is determined according to the number of the first wind disc in the fan-coil unit, the two-way valve of the third wind disc is controlled to be turned on to the first target opening degree, the hydraulic balance of the water system of the air conditioner can be realized without installing a pressure difference bypass valve, the installation cost of the air conditioner can be saved, and the air conditioner leakage problem caused by the installation of the pressure difference bypass valve can be avoided.

This invention relates to a design method for a medium-temperature chilled water centralized air conditioning system, belonging to the field of energy-saving air conditioning system design technology, and filling the gap in existing technologies for design methods of medium-temperature chilled water centralized air conditioning systems. The design method includes the following steps: S1, initial data extraction and initial judgment: determining whether adjustments to the selection and design of conventional fresh air handling units and fan coil units are needed; S2, calculating the indoor heat-to-moisture ratio and determining the air supply state point; S3, calculating the dehumidification capacity of the fresh air handling unit and fan coil units; S4, setting equipment selection parameters; S5, evaluating the dehumidification capacity of the fresh air handling unit; S6, evaluating the dehumidification capacity of the fan coil units; S7, determining the system supply water temperature. This invention can design medium-temperature chilled water centralized air conditioning systems with different operating conditions and determined supply water temperatures for different climate zones. Compared with normal temperature systems (7 / 12℃), the medium-temperature system has a higher evaporation temperature of the chiller unit, which can improve the system COP and achieve energy saving in air conditioning.

Traditionally, the main reciprocating transport pipes through which chilled and hot water circulates have been sealed piping systems using steel pipes (such as white pipes or internally lined steel pipes). However, due to the relative installation locations of the main transport pipes and air conditioning equipment, bending points are required when connecting the pipes. This posed a problem when using steel pipes, as it necessitated the use of elbows and flexible joints. [Solution] A high-pressure resistant resin pipe with an outer cross-linked polyethylene layer thickness of 1.5 mm and an inner cross-linked polyethylene layer thickness of 3.55 mm is used as the attached pipe, joined to a high-pressure resistant fitting, and used to connect the reciprocating transport main pipe and the air conditioning equipment (fan coil unit).

This utility model belongs to the field of fan coil unit technology, and in particular, a fan coil unit with backflushing function. It includes a condensate pan, above which are a cooling mechanism and a cleaning mechanism. The cleaning mechanism is located outside the cooling mechanism. The cooling mechanism includes a heat exchange coil, which performs heat exchange and cooling with the outside air. The cleaning mechanism includes a cleaning brush, which cleans dust and debris clogging the surface of the unit. This fan coil unit with backflushing function, by incorporating a cleaning mechanism that uses a cleaning brush to clean dust and debris clogging the surface of the unit, prevents dust and other debris from clogging the air inlet after prolonged use, thus avoiding impact on the cooling effect of the fan coil unit. It also solves the technical problem of existing fan coil units where a large amount of dust accumulates on the filter screen after prolonged use, reducing the air intake volume.

This invention provides a fan coil unit speed control method, device, and air conditioner, comprising: acquiring multiple operating environment parameters of the fan coil unit; converting the operating environment parameters based on a preset conversion formula to obtain input parameters; inputting the input parameters into a pre-trained neural network to output a speed control signal for the fan coil unit; the neural network being trained based on multiple preset operating environment parameters; and controlling the airflow of the fan coil unit according to the speed control signal. This method controls the airflow of the fan coil unit by training a neural network based on multiple preset operating environment parameters to take into account factors other than temperature, thereby improving the comfort level of the air conditioning output.

This invention discloses a fresh air purification and humidification device for fan coil air conditioners, relating to the field of fan coil unit technology. It includes a body; a water receiving tray installed at the bottom of the body; a side plate installed outside the water receiving tray; a mounting box installed at the bottom of the water receiving tray; an interception mechanism installed outside the side plate, the interception mechanism including a replacement component and a rotating component, the replacement component and the rotating component being used for particulate matter interception and purification of fresh air; and a humidification mechanism located outside the mounting box, the humidification mechanism including a sixth push rod, the telescopic end of the sixth push rod being fitted with a first fixing ring, the inside of the first fixing ring being fitted with a telescopic pipe, the top of the telescopic pipe being fitted with an inclined pipe, the sixth push rod being used to control the raising and lowering of the inclined pipe. This fresh air purification and humidification device for fan coil air conditioners achieves the purpose of improving the efficiency of the equipment.

The invention provides a fan coil control method and device and electronic equipment. The method comprises the steps that the current cooling load requirement of a target area is obtained; under the condition that the current cooling load demand is smaller than or equal to a first preset threshold value, the opening degree of a chilled water electric valve is adjusted according to chilled water supply and return water temperature difference; and under the condition that the current cooling load requirement is larger than a first preset threshold value, the opening degree of the chilled water electric valve is adjusted according to the return air temperature. The control mode is dynamically switched, the energy-saving mode is adopted in the low load, the opening degree of the valve is adjusted according to the temperature difference of supply water and return water, large-temperature-difference and small-flow operation is achieved, and energy consumption of the water pump and the draught fan is remarkably reduced; a comfortable mode is adopted during high load, the opening degree of the valve is rapidly adjusted according to the return air temperature, and the stability and comfort of the indoor temperature are guaranteed. And on the other hand, the supply and return water temperature difference serves as a control parameter, frequent adjustment caused by temperature fluctuation of the system is reduced during low load, and therefore equipment abrasion is reduced.

The present disclosure relates to a multi-split central air conditioning system for simultaneous cooling and heating, including a condensation module, multiple indoor fan coil units, a high-pressure circulation tube, a medium-pressure circulation tube, a low-pressure circulation tube, and an evaporation module. The indoor fan coil units are connected to the high-pressure circulation tube by means of a first branch tube, to the low-pressure circulation tube by means of a second branch tube, and to the medium-pressure circulation tube by means of a third branch tube, and a solenoid valve is provided on each of the first branch tube and the second branch tube. The beneficial effects are: when heating a local area in the summer and cooling a local room in the winter, refrigerant is circulated by means of solenoid valve switching and a medium-pressure circulation tube and the multi-split central air conditioning system has multiple working modes.

1. Name of the product in this design: Knob and button type temperature controller (GM1). 2. Application of this design: for temperature control of equipment such as electric heating, water-based underfloor heating, fresh air units, fan coil units, and central air conditioning in HVAC engineering. 3. The key design feature of this product is its shape. 4. The image or photograph that best illustrates the design's key points: a 3D model.

This application relates to the field of fan coil units and discloses a cleaning device for surface cooler fan coil units. In this application, a mixing tank serves as a mixing container for the cleaning solution, thoroughly mixing clean water and detergent to form a uniform cleaning solution. An electric butterfly valve, through electric control, adjusts the valve opening, thereby controlling the flow rate of detergent from the detergent tank. By controlling the opening time of the electric butterfly valve, the dosage of detergent flowing into the mixing tank is quantitatively controlled. A stirring roller, through rotation, stirs and mixes the clean water and detergent in the tank, ensuring they are fully integrated to form a uniform cleaning solution. A servo motor serves as the power source for the stirring roller's rotation, enabling the stirring of the clean water and detergent inside the mixing tank. By integrating a water supply component for cleaning the surface cooler into this device, continuous cleaning of the fan coil unit surface cooler is possible. Furthermore, the device allows for the quantitative addition and stirring of detergent into the clean water, improving the cleaning effect.

The application provides an ion generating device, a fan coil unit and an air conditioning system. The ion generating device comprises: a power module; a negative plate connected to the power module; a ground plate spaced apart from a first side of the negative plate, the first side of the negative plate comprising a plurality of plasma needles extending towards the ground plate; a positive plate spaced apart from a second side of the negative plate, the positive plate being connected to the power module and having an opposite polarity to the negative plate, and a plurality of carbon fiber brushes corresponding in position being arranged on the sides of the negative plate and the positive plate opposite to each other. The ion generating device according to the embodiment of the application can simultaneously generate plasma and positive and negative ions, and has simple structure and high integration.

This utility model discloses a concealed vertical water-cooled coil air conditioner, relating to the field of water-cooled coil air conditioning technology. It includes a housing with an inlet and outlet water pipe installed on one side. A DC brushless motor and two volute fans are installed on the inner wall of the housing, with the two output shafts of the DC brushless motor fixed to the impellers inside the two volute fans. A finned heat exchanger, consisting of a coil and aluminum fins wrapped around the coil, is installed on the inner wall of the housing. A return air filter is provided on the inner wall of the housing for filtering the return air. This utility model's water-cooled coil air conditioner is concealed vertically within a partition wall, completely hiding the indoor unit after installation. It also changes the air supply and return method from the side-out, bottom-return of a conventional fan coil unit to a concealed vertical bottom-out, top-return configuration, improving heat exchange uniformity and facilitating disassembly and maintenance of the lower fan, thus enhancing ease of use.

This utility model discloses fan coil units with various installation methods, including a housing and a fan. The housing has open ends at opposite points to form an air inlet and an air outlet. A mounting plate is provided on one side of the housing, with multiple mounting holes symmetrically arranged along its two edges. An inclined surface cooler is installed inside the housing cavity, and a partition is installed within the cavity between the air inlet and outlet. The fan is installed on the side of the partition near the air inlet, blowing air through the surface cooler and exiting through the outlet. A condensate pan is provided on the side of the housing opposite the mounting plate, with a sloped bottom to facilitate the collection and drainage of condensate. A water collection chamber is formed on the side of the condensate pan near the fan. The surface cooler is installed at a certain angle to the heat exchange airflow, allowing condensate to flow into the condensate pan for collection, regardless of whether it is ceiling-mounted or wall-mounted. The inclined design at the bottom of the condensate pan facilitates smooth drainage.

This invention provides a modular fan coil unit and an air conditioner. The modular fan coil unit includes: a first heat exchange module, a second heat exchange unit, and a third heat exchange module. The second heat exchange unit includes at least one second heat exchange module. The first heat exchange module, the second heat exchange unit, and the third heat exchange module are sequentially detachable and assembleable, or the first heat exchange module and the third heat exchange module are detachable and assembleable. The number of second heat exchange modules can be adjusted according to the required heat exchange load. According to this invention, by modularly designing the fan coil unit, when facing different load requirements, only the first heat exchange module, a corresponding number of second heat exchange modules, and the third heat exchange module need to be assembled together, or the first heat exchange module and the third heat exchange module need to be assembled together, to quickly produce the corresponding model of fan coil unit. This makes design and production very convenient, thereby reducing design and development work, reducing production work, and improving production efficiency.

The utility model relates to an installation hanger device for a fan coil unit, which comprises a top plate and a side plate which are fixedly connected. The top plate comprises a plurality of first notches formed in the side edge of the top plate. The side plate comprises a short side plate and a long side plate, the short side plate is fixedly connected with the long side plate, a plurality of second notches are formed in the side edge of the short side plate, the second notches and the first notches are the same in shape and number, and the second notches and the first notches are arranged in a stacked mode. According to the mounting hanger device for the fan coil unit, the side plates and the top plate of the fan coil are integrated together to form the mounting hanger, so that the overall size of the fan coil unit is reduced, the material cost is reduced, the mounting steps are simplified, the mounting efficiency is improved, meanwhile, the double-layer plate splicing and bending design is adopted, and the mounting hanger device is convenient to mount and dismount. And the bearing capacity of the hanger is enhanced, so that the mounting stability and safety are ensured.

This invention discloses an integrated high-efficiency heat exchange system, which connects an indoor unit, an outdoor unit, and air conditioning terminal equipment via pipelines. In the indoor unit's internal circulation pipeline, a water purification device is connected before or after the mixing device and circulation pump. The liquid circulates repeatedly in a closed pipeline, avoiding direct contact with the atmosphere, thus reducing corrosion and impurity entry. The branch formed by the water purification device prevents dry burning, purifies water quality, removes scale, and provides a minimum flow loop for the system, helping to stabilize system pressure. Multiple fan coil units are installed in the air conditioning terminal equipment, and a resistance sensor is installed before the circulation pump. When the number of fan coil units operating changes, the pump speed changes as the number of fan coil units decreases. The air purification device in the indoor unit draws indoor air into the unit, adsorbing pollutant molecules in the micropores of activated carbon, while clean air is blown back into the room. The circulation pump in this system is a shielded pump, which has low operating friction and low noise.

This utility model provides a concealed noise-reducing fan coil unit, including a fan coil unit body. Mounting plates are installed at the four corners of the fan coil unit body. Mounting blocks are installed on the outer sides of the mounting plates, and lifting wires are installed on the outer sides of the mounting blocks. A noise-reducing connection assembly is provided between the mounting plates and the mounting blocks. Connecting ears are fixedly installed on the outer sides of the mounting blocks. The lifting wires are inserted into the holes of the connecting ears. Nuts are threaded onto the upper and lower sides of the lifting wires on the connecting ears. Mounting bolts connecting the fan coil unit body are provided on the upper side of the mounting plate. Through the cooperation of structures such as the beveled block and beveled groove, the T-shaped block and T-shaped groove, and the connecting groove and locking block in the noise-reducing connection assembly, not only is a good vibration reduction effect achieved, but the stability of the connection between the mounting plate and the mounting blocks is also ensured, making the fan coil unit more stable in a suspended state.

This invention discloses a modular cabin with a distributed environmental control system. The cabin is divided into an operation room and an equipment room. An air duct is arranged along the axial direction of the cabin top, connecting the operation room and the equipment room. The air inlet of the air duct is connected to the environmental control fan coil unit located on the top of the equipment room, and the air return outlet of the air duct is located on the top of the partition wall, communicating with the operation room. Each equipment cabinet in the equipment room is equipped with a plug-in cooling fan coil unit. A liquid cooling source is installed on the outer wall of the cabin. The liquid cooling source provides low-temperature coolant to the environmental control fan coil unit and the cooling fan coil unit through the environmental control liquid cooling pipe network. This application improves personnel comfort by isolating the equipment and personnel operation space, reducing the impact of equipment on personnel heat generation and noise. The location and number of environmental control fan coil units and equipment cabinet cooling fan coil units are distributed according to the different needs of personnel and electronic equipment for environmental control functions, thus solving the problem of personnel environmental control and electronic equipment heat dissipation.

This invention discloses a fan coil unit temperature control device and method, relating to the field of temperature control technology. The invention connects a microcontroller unit (MCU) and an NB-IoT chip to a remote MQTT cloud server. The NB-IoT chip uploads the current room temperature, outlet air temperature, weather conditions, and room load model to the remote MQTT cloud server. Based on the current parameters and the room load model, the remote MQTT cloud server predicts the room temperature and humidity at the next moment and controls the fan coil unit via the MCU. In other words, this invention connects the MCU to the cloud server via the MQTT protocol, allowing for precise temperature control of the fan coil unit in complex buildings.

The utility model provides a long-distance air supply device for a fan coil. The long-distance air supply device comprises a static pressure box assembly and an air supply assembly. One side of the static pressure box assembly communicates with the fan coil unit, and the air supply assembly is arranged on the other side of the static pressure box assembly. The air supply assembly comprises a spherical nozzle and an air supply clamping piece, the air supply clamping piece is installed on the static pressure box assembly, the spherical nozzle is connected to the air supply clamping piece in a clamped mode, and a first air supply pipeline is arranged in the spherical nozzle. The fan has the advantages that the air outlet is the spherical nozzle, the optimal aerodynamic structural design is adopted, large-flow air flow can be provided under the condition of low energy consumption, a first air supply pipeline does not need to be externally connected, the fan can be installed indoors in an exposed mode, installation is convenient, the fan is provided with the air blocking assembly, and when work is stopped, the air blocking motor rotates, and the air blocking effect is good. And the circular large plate completely blocks the first air supply pipeline.

This invention provides a multi-FCU collaborative control method and system based on temperature deviation. The method includes acquiring real-time operating parameters of multiple fan coil unit (FCU) units within a controlled area and the current ambient temperature at the corresponding point of each FCU; calculating the local temperature deviation value of each FCU and determining the regional average temperature deviation value based on the overall thermal field distribution of the controlled area; dynamically clustering the multiple FCUs based on the correlation between local and regional temperature deviation values, dividing them into lead units and follower units; determining the initial adjustment increment of the lead unit and calculating the collaborative compensation ratio of each follower unit; and finally synchronously issuing control commands to achieve convergence of the temperature deviation in the controlled area by adjusting the variable frequency fan speed and water valve opening of each unit. This invention can improve the temperature control accuracy of multiple FCUs and the regional temperature uniformity, suppress pipeline pressure fluctuations, and reduce system operating energy consumption.

This invention provides a defrosting control method, apparatus, device, storage medium, and air conditioner based on a dual-fan air conditioner, relating to the field of air conditioner technology. The method includes acquiring the outdoor ambient temperature during air conditioner operation; determining whether the outdoor ambient temperature meets a first preset condition; detecting the external coil temperature at the second fan coil unit; determining whether the external coil temperature meets a second preset condition; and acquiring a first speed and a second speed; adjusting the first speed to a target speed and controlling the first fan to run for a first operating time; adjusting the second speed to the target speed and controlling the second fan to run for a first operating time; determining a first average current value for the first fan and a second average current value for the second fan; and controlling the air conditioner to perform defrosting based on the first and second average current values. The embodiments provided by this invention improve heating efficiency by determining the optimal defrosting timing and controlling the air conditioner to defrost at the optimal time.

The invention relates to a control method of an active induction unit, belongs to the technical field of air conditioning, and solves the problem that in the prior art, when primary air subjected to centralized treatment of the induction unit is closed, cooling or heating cannot be achieved. Or the problems of condensation of a fan coil unit and condensation of a room when low-temperature chilled water is used for supplying water to the fan coil are solved. The system comprises a forced convection cold supply working mode, a forced convection heat supply working mode, a natural convection and radiation heat supply mode and an on-duty heating working mode. The active induction unit further comprises a controller, a field control panel and an electric adjusting valve, a temperature sensor used for collecting indoor temperature is arranged in the field control panel, working condition modes and the indoor temperature can be set through the field control panel, and an information processing module in the controller controls the electric adjusting valve according to the set indoor temperature. The control system automatically compares a measured value tn of a temperature sensor in the field control panel with an indoor temperature set value t0, and automatically controls the opening degree of the electric control valve and the rotating speed of the fan, so that the purpose of indoor constant temperature is achieved by controlling the flow of air conditioner chilled water or air conditioner hot water and the air volume of the fan.

This utility model discloses an electrical control box for a fan coil unit, a fan coil unit, and an air conditioning system. The electrical control box includes a box body and a first-layer electrical control board and a second-layer electrical control board installed on the box body. The first-layer electrical control board and the second-layer electrical control board are spaced apart, and the second-layer electrical control board is located on the side of the first-layer electrical control board where electrical components are installed. The box body includes a main body with an opening, and the second-layer electrical control board is closer to the opening than the first-layer electrical control board. The second-layer electrical control board includes at least one flip-up electrical control board, which is configured to flip towards the opening. The technical solution provided by the embodiments of this application saves the area occupied by the electrical control boards by arranging them in layers within the box body, thereby reducing the installation area of ​​the electrical control box. This allows the electrical control box to be fitted onto the fan coil unit and facilitates the replacement or maintenance of electrical components on the first-layer electrical control board.

This utility model discloses a reheat fan coil unit, comprising a fan, a heat exchanger, a primary return air box, a secondary return air box, a fresh air inlet, a primary return air outlet, a secondary return air outlet, a secondary return air duct, and an air supply outlet. The primary return air box has a fresh air inlet and a primary return air outlet; the secondary return air box has a secondary return air outlet, a secondary return air duct, and an air supply outlet. The primary return air box is connected to the heat exchanger inlet, and the heat exchanger outlet is connected to the secondary return air box. The fan includes a volute, a fan impeller, and a motor. Its air intake is connected to the secondary return air box, and its air outlet is connected to the secondary return air box's air supply outlet. The secondary return air duct is installed in the secondary return air box, with its lower air intake connected to the secondary return air outlet and its upper air outlet connected to the secondary return air box shell. The upper air outlet is higher than the fan motor, housing the fan motor within it. During winter operation, low-temperature indoor air enters the secondary return air duct, cooling the motor, preventing motor burnout, and extending motor life.