114 results about "Fan coil unit" patented technology

The invention discloses a central air conditioner control system and method based on indoor enthalpy value control. The system comprises a sensor module used for monitoring and collecting relevant parameters; the specific enthalpy value obtaining module is used for obtaining an air specific enthalpy value according to the collected parameters; the operation adjusting module controls a panel to adjust the operation mode, the air volume and the temperature according to the relation between the specific enthalpy value and a preset value, and the indoor specific enthalpy value meets the preset requirement; the real-time monitoring and automatic adjusting module is used for adjusting the opening group number of the surface air cooler coil pipe by calculating the enthalpy difference with a set value; the judgment and control module is used for judging whether the specific enthalpy value of the control panel reaches a set range or not; and the parameters are adjusted to enable the specific enthalpy value to reach a set value. The heat and humidity load condition of the indoor environment can be quickly judged and the real-time state is mastered; a specific enthalpy value operation control mode is adopted, fan coil operation and indoor environment parameters are accurately linked, operation is guided according to environment requirement feedback, air conditioner operation scientificity is improved, and accurate regulation and control of an air conditioner system are achieved.

The utility model relates to the technical field of clean composite energy centralized energy supply systems, and discloses an energy-saving efficient medium-low temperature cold water coupling cold supply system. The utility model relates to an energy-saving efficient medium and low temperature cold water coupling cold supply system, which comprises refrigeration equipment, namely conventional refrigeration equipment, medium temperature refrigeration equipment, and cold release equipment, namely a fresh air handling unit, a dry type fan coil, a capillary tube and a floor radiator, wherein a cold water outlet of the conventional refrigeration equipment is connected with a cold water inlet of the fresh air handling unit through a conveying system; a cold water outlet of the fresh air handling unit is connected with a cold water inlet of the tail end cold release equipment through a conveying system, a cold water outlet of the dry type fan coil is connected with a cold water inlet of the capillary tube and the floor radiation through a conveying system, and a cold water outlet of the capillary tube and the floor radiation is connected with a cold water outlet of the medium-temperature refrigeration equipment through a conveying system. A cold water outlet of the medium-temperature refrigeration equipment is connected with a cold water inlet of the conventional refrigeration equipment through a conveying system, the conveying system is a middle pipeline system, and a circulating water pump is arranged in the middle pipeline system.

The present application discloses an integrated dry fan coil unit, which relates to the technical field of fan coil units and is invented to solve the problem that the installation process of existing dry fan coil units is complicated and cumbersome due to the presence of condensate system pipes. The dry fan coil unit provided by the present application includes: a housing in which a air duct is formed, and an air return opening and an air supply opening communicating with the air duct are provided on the housing; a fan installed in the air duct; a heat exchange coil installed in the air duct and located between the fan and the air supply opening; a deflector installed in the housing, the fan is located below the deflector, the heat exchange coil is located above the deflector, the fan includes a volute and an impeller installed in the volute, the air outlet of the volute faces upward, and the deflector can guide the condensate generated on the surface of the heat exchange coil into the volute. The dry fan coil unit of the present application is used to adjust indoor air.

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 discloses a refrigeration water balance energy-saving device of an air conditioner. The refrigeration water balance energy-saving device comprises a water chilling unit, a water pump and a fan coil, the water cooling unit cools circulating water, the water pump controls the flow speed of the circulating water, and air in the fan coil is cooled through the circulating water. An energy valve is further arranged in the circulating water pipeline, and a first temperature sensor and a second temperature sensor are arranged at the water inlet end and the water outlet end of the fan coil correspondingly. The first temperature sensor and the second temperature sensor are electrically connected with the energy valve; the energy valve controls the opening degree of the valve and the output flow of the water pump according to the temperature difference measured by the first temperature sensor and the second temperature sensor. The utility model aims to provide a novel air-conditioning refrigeration water balance energy-saving device which can flexibly adjust the flow rate of cold water, the power of a pump machine, the power of a water chilling unit and the like, adapt to the requirements of different seasons and different production processes on environment temperature and humidity, and simultaneously reduce the energy consumption of equipment and the production cost.

The invention discloses a fan coil unit adopting a double-working-condition coil and a control method of the fan coil unit, and relates to the technical field of air conditioning, and the fan coil unit comprises the double-working-condition coil, a fan, a water condensing disc and a box body. The double-working-condition coil pipe is composed of a double-partition coil pipe and a valve assembly, the double-partition coil pipe is provided with a first heat exchange area and a second heat exchange area, and air conditioner cold and hot water flowing through the first heat exchange area of the double-partition coil pipe can completely, partially or not flow through the second heat exchange area of the double-partition coil pipe through adjustment of the valve assembly. The first heat exchange area of the double-partition coil pipe operates under the wet working condition, and the second heat exchange area operates under the dry working condition during cooling. After the fan runs, indoor return air enters the box body through a return air inlet formed in the box body, is cooled or heated by the first heat exchange area and the second heat exchange area of the double-partition coil pipe and then is sent out through an air supply outlet formed in the box body. The air supply temperature and humidity are adjusted, air supply dewing is prevented, low-temperature cold water can be adopted for cooling, and the energy consumption of an air conditioner water transmission and distribution system is greatly reduced.

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.

The invention discloses an electric motor coach heat management system and method for secondary loop heat exchange, the electric motor coach heat management system comprises a heat pump system, a cold water system, a hot water system, a battery temperature regulator and a cold and hot core body, the heat pump system is connected with the cold water system through an evaporator, and the heat pump system is connected with the hot water system through an air cooler; the cold water system comprises a cold water pump, a fan coil, an electric control and motor ATS cooling unit and a first secondary refrigerant loop communicated with all components. The hot water system comprises a hot water pump, a floor radiator, an outside-vehicle heat exchanger and a second refrigerating medium loop communicated with all the components. The battery temperature regulator and the cold and hot core body selectively communicate with the first secondary refrigerant loop or the second secondary refrigerant loop through valve switching. Independent cold and heat secondary loops are formed through the heat pump subsystem, the cold water subsystem and the hot water subsystem, efficient cold and heat distribution is achieved, and mutual interference is avoided.

This invention discloses a method, apparatus, device, and storage medium for heating protection of fan coil units. The method includes: periodically acquiring the ambient temperature of a target environment when the fan coil unit is in a stopped state; determining the temperature drop rate of the target environment when the ambient temperature shows a decreasing trend; acquiring a first tube temperature of the fan coil unit and predicting a first temperature drop time based on the first tube temperature and the temperature drop rate; determining whether the first temperature drop time is less than a preset first time threshold; and activating a heating element outside the fan coil unit to heat the fan coil unit when the first temperature drop time is determined to be less than the first time threshold. This fan coil unit heating protection method solves the problem that excessively low ambient temperatures can easily cause water in the fan coil unit to freeze and expand, damaging its pipes. It effectively reduces the probability of such damage occurring when excessively low ambient temperatures cause water in the fan coil unit to freeze and expand, thus saving maintenance costs.

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 present invention relates to the technical field of fan coil units, specifically a low-noise, condensation-free, horizontal concealed fan coil unit, comprising: an outer shell, an air outlet and a storage slot are provided on the surface of the outer shell, a rectangular frame is provided in the air outlet, a second rotating shaft is provided at the end of the rectangular frame, a filter is provided on the surface of the rectangular frame, an extension block is fixed on the surface of the filter, a supporting frame and a telescopic frame are provided in the storage slot, a movable plate is provided on the surface of the telescopic frame, a vertical rod is provided on the surface of the movable plate, a connecting plate is provided at the bottom of the vertical rod, and a transverse plate is fixed on the surface of the connecting plate; the beneficial effect is that due to the pulling of the elastic band, the filter screen and the rectangular frame are in a horizontal state, multiple groups of filter screens cover the rectangular frame and push the transverse plate, and the transverse plate drives the connecting plate to move, so that the top holding block on the top of the connecting plate moves with the transverse plate, and brushes are provided at both ends of the top holding block, and the brush cleans the surface of the filter screen during the movement of the top holding block.

The utility model relates to an air source heat pump system, which belongs to the technical field of heat exchange, and comprises an air source heat pump host, a circulating pump, an expansion tank and a plurality of first fan coil units, the water inlet end of the circulating pump is connected to an external municipal tap water source, and the water outlet end of the circulating pump is connected to the water inlet end of the air source heat pump; the water outlet end of the air source heat pump is connected to the water inlet end of the first fan coil unit, the water outlet end of the first fan coil unit is connected to the water inlet end of the circulating pump, and the expansion tank is connected to a conveying pipeline between the water inlet end of the circulating pump and an external municipal tap water source. Advanced assemblies such as an evaporator, a liquid storage device, an economizer and a second fan coil are introduced, and the system achieves multi-stage utilization and efficient recovery of energy in the heat exchange process. And by using the economizer, the operation efficiency of the system under partial load is particularly enhanced, and unnecessary energy loss is reduced.

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).

The utility model discloses a condensate water pan which comprises a split water pan, a split water drainage pipe located on one side of the split water pan and pipe clamp assemblies located on the two sides of the split water pan. The connecting part comprises a three-way pipe, a connecting pipe is installed on one side of the three-way pipe, the connecting pipe is connected with a split drainage pipe, and a drainage pipe is installed at the bottom of the three-way pipe; and the main water receiving part comprises a main water receiving disc, a main water drainage pipe is arranged on one side of the main water receiving disc, one end of the main water drainage pipe is connected with a three-way pipe, and four sets of hanging frame assemblies are installed on the inner side of the main water receiving disc. Condensate water in an inlet pipe and an outlet pipe of the fan coil can be effectively collected by adopting the split water receiving disc, the condensate water is prevented from dripping into the device to corrode parts such as valves and the like, the condensate water is also prevented from gathering to breed bacteria to generate peculiar smell, and the heightening wall is arranged to increase the overall height of the device and increase the overall capacity of the device.

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 relates to the technical field of air conditioner control, in particular to a wind-water linkage energy-saving group control method which comprises the following steps: reading the total online number of temperature controllers, the number of started fan coils, the actual room temperature, the set room temperature and the running modes of the temperature controllers; calculating a room temperature standard-reaching rate; if the room temperature standard-reaching rate is higher than the set value, and the room temperature which is higher than the set proportion P% in the standard room temperature controller is in a low-air mode or a windless mode, the water outlet set temperature of the main machine is increased; if the room temperature reaching rate is higher than the set value, but the room temperature reaching rate which is not higher than the set proportion P% in the room temperature controllers reaching the standard is a low-wind mode or a windless mode, the host maintains original set operation; if the room temperature standard-reaching rate is not higher than the set value, the room temperature is positive deviation, and the air volumes of all the rooms which do not reach the standard cannot be further adjusted and increased, the water outlet set temperature of the main machine is reduced; according to the group control method, the fan coil air speed can be reduced in time, the main machine water outlet temperature is increased, air-water linkage of the air conditioner is achieved, and more energy is saved.

The intelligent controller comprises a fixing plate, a mounting plate, a controller body and a cover body arranged on the front side face of the mounting plate, two sliding plates are symmetrically arranged on the left side face and the right side face in the cover body, and an upper horizontal sliding groove and a lower horizontal sliding groove are formed in the opposite side faces of the two sliding plates respectively. An upper sliding block and a lower sliding block are slidably connected into the upper horizontal sliding groove and the lower horizontal sliding groove respectively, a first guide shaft is arranged in the horizontal sliding grooves, a first spring sleeves the first guide shaft, a baffle is slidably connected into the lower sliding block up and down, and the upper end of the baffle can be inserted into the upper sliding block; a plurality of limiting assemblies for limiting the baffle are arranged on the front side face of the upper sliding block, and a through groove for the baffle to slide front and back is formed in the lower side face in the cover body. An upper connecting assembly and a lower connecting assembly are arranged between the fixing plate and the mounting plate; the utility model has the advantage of good protection effect.

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 invention relates to the technical field of fan coil units, in particular to a low-noise condensate-free horizontal concealed fan coil unit which comprises a shell, an air outlet and a storage groove are formed in the surface of the shell, a rectangular frame is arranged in the air outlet, a second rotating shaft is arranged at the end of the rectangular frame, and a filter screen is arranged on the surface of the rectangular frame. An extension block is fixed to the surface of the filter screen, a bearing frame and a telescopic frame are arranged in the storage groove, a moving plate is arranged on the surface of the telescopic frame, a vertical rod is arranged on the surface of the moving plate, a connecting plate is arranged at the bottom of the vertical rod, and a transverse moving plate is fixed to the surface of the connecting plate; the device has the beneficial effects that due to pulling of an elastic belt, filter screens and a rectangular frame are in a horizontal state, the rectangular frame is covered with the multiple sets of filter screens, a transverse moving plate is pushed, the transverse moving plate drives a connecting plate to move, a jacking block at the top of the connecting plate moves along with the transverse moving plate, and brushes are arranged at the two ends of the jacking block; and the brush cleans the surface of the filter screen along with the moving process of the jacking block.

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 present invention belongs to the field of industrial equipment control technology. The present invention provides a wind speed level control system and method for a fan coil unit, comprising: evaluating the changing relationship between the air conditioning refrigerant flow and the indoor load through a correlation analysis method to determine whether there is a correlation between the two; if there is a correlation between the flow and the load, predicting the indoor load demand in a future time period; matching and analyzing the predicted refrigerant demand flow with the current wind speed level of the fan coil unit to determine whether the current wind speed can meet the future load demand; performing a correlation analysis on the wind speed of the fan coil unit and the refrigerant demand flow to verify whether there is a coordinated change relationship between the two; if there is a correlation, determining the optimal wind speed level in the future time period based on the predicted refrigerant demand flow, realizing dynamic optimization of the wind speed level, and improving system energy efficiency and indoor environmental comfort.