6720results about "Condensate prevention" patented technology

The invention discloses a cleaning control method for an indoor heat exchanger of an air conditioner. The cleaning control method includes the steps that when the air conditioner gets into the automatic cleaning mode, the refrigeration mode is started; evaporating temperature is reduced to enable water in air to be condensed into frost or thin ice on the indoor heat exchanger; after the air conditioner continuously runs in the refrigeration mode for set refrigeration time, the running mode of the air conditioner is switched to the heating mode from the refrigeration mode so that the frost or the thin ice on the heat exchanger can be thawed to clean the heat exchanger. The invention further discloses the air conditioner. By means of the cleaning control method and the air conditioner, automatic cleaning of the indoor heat exchanger of the air conditioner can be achieved, and therefore it can be avoided that the heat exchange efficiency of the heat exchanger is reduced.

The invention provides an anti-condensation control method and device for an air conditioner. The control method comprises the steps that after it is detected that the air conditioner is in a refrigeration mode, the temperature and the relative humidity of the inner environment where an air conditioner indoor unit is located and the heat exchanger coiler temperature of the indoor unit are detected; the dew point temperature of the indoor environment where the indoor unit is located is calculated according to the indoor environment temperature and the indoor environment relative humidity; if the indoor environment temperature is larger than or equal to the indoor environment temperature preset threshold value, the indoor environment relative humidity is larger than or equal to the indoor environment relative humidity preset threshold value and the heat exchanger coil temperature of the indoor unit is smaller than the indoor environment dew point temperature, whether the first anti-condensation mode or the second anti-condensation mode of the air conditioner is started is determined according to the comparison result of the difference value of the heat exchanger coil temperature and the indoor environment dew point temperature of the indoor unit and the preset temperature difference value. By the adoption of the anti-condensation control method and device, the anti-condensation control accuracy of the air conditioner is improved, and the air conditioner is prevented from generating condensation.

A forced air cooling tower includes an upright casing, and elevated water distribution system disposed in an upper portion of the casing and one or more fans for drawing air through the tower. The tower also includes a catch basin for collecting the cooled air and a pump for circulating the cooled water through a condenser and back to the top of the tower and to the water distribution system. The cooling tower also includes a controller and a variable frequency device for regulating the flow of air through the tower. A first temperature sensor senses the temperature T1 of the hot process water delivered to the water distribution system and a second sensor senses the dry bulb temperature of the air leaving the tower Tdbt2. A third sensor senses the temperature of the cooled water leaving the tower. The controller such as a computer and variable frequency drive controls the speed of the fan to minimize the difference in T1 and Tdbt2. A submaster control prevents the fan speed from being further reduced when a predetermined T2 (temperature of the cooled water) is reached.

A condensate drain pan comprises a compound-sloped floor surface having intersecting sloped faces which slope from a high point to a low point. The intersecting sloped faces form creases therebetween to facilitate condensate elimination, and the floor surface includes condensate directing embossments which further facilitate condensate elimination. The condensate drains to a drain opening at the low point.

The invention discloses a control method and device for condensation prevention of an air conditioner and belongs to the technical field of condensation prevention of air conditioners. The control method includes the steps of obtaining first operation parameters and indoor environment parameters of the air conditioner, and controlling the air conditioner to be switched to operate in a heating mode when the first operation parameters and the indoor environment parameters meet preset condensation prevention starting conditions. According to the control method for condensation prevention of the air conditioner, the air conditioner can be switched to operate in the heating mode when the condensation prevention starting conditions are met, water drops condensed inside an indoor unit can be evaporated into water vapor through heat of a high-temperature refrigerant conveyed to an indoor heat exchanger, and thus the quantity of liquid water inside the indoor unit is reduced, the problems of condensed water dripping, water blowing during air exhausting and the like of the air conditioner are avoided, and the operational performance and user experience of the air conditioner are improved.

A portable, combination dehydrator, dry return air and condensed water generator / dispenser configured to alternately provide water from a reservoir of condensed water or from an alternative source of water. In one embodiment, the alternative source comprises a five-gallon bottle of water and the mounting for the bottle includes a removable cover for preventing contamination of the system when the bottle is not in place. In one embodiment, the system provides purified dry make-up air to a home or office air conditioning system and dehydration cabinet, while producing pure atmospheric condensation from humidity found in the air and purifying the air and water for breathing, dispensing and drinking purposes.

An air conditioner having a compressor, refrigerant condenser coil and accumulator submerged in water in a water tank, wherein the water is cooled by evaporative cooling when air is drawn through water sprayed into an air inlet duct communicating with the water tank. The compressor is cooled by the water in the water tank which is cooled by evaporative cooling. The water level in the water tank is maintained by a float valve connected to a water line to replenish evaporating water.

A system for providing liquid refrigerant subcooling by means of evaporative cooling utilizing the condensate water of said air conditioner, refrigeration / heat pump system and / or other water supply to wet the surface of the subcool heat exchanger and pass the dry exhaust air across the wetted surface of the subcool heat exchanger. A system for providing hot gas discharge refrigerant precooling into the primary condenser of an air conditioner, refrigeration or heat pump system by evaporative cooling utilizing the condensate water of said system and / or other water supply to wet the surface of the precool heat exchanger and then passing the cold, dry exhaust air across the wetted surface of the precool heat exchanger. A combination subcooler / precooler system where the cold dry building exhaust air is used to evaporatively subcool the liquid refrigerant in the water wetted (or dry) subcooler and then used to conductively cool the hot gas refrigerant.

A condensate pump for an HVAC system includes a reservoir for collecting condensate water, a pump motor connected to an impeller pump for pumping the condensate water out of the reservoir, and a floatless pump control module. The floatless pump's microcontroller detects the water level in the reservoir and, based on the water level in the reservoir, controls the operation of the pump motor, and if necessary, sounds an alarm and shuts down the HVAC system. The floatless pump microcontroller may employ an ultrasonic transducer or capacitance sensors to detect the level of condensate water in the reservoir. The microcontroller implements a variable water lift feature to pump the water using the lowest possible speed for the pump. The microcontroller implements a self-cleaning feature to pump stagnant water out of the reservoir and to pulse water in the drain line and the agitation of the water in the reservoir. The microcontroller implements an anti-clog feature to clear a clogged drain line when an overflow condition is detected.

A variable speed air handling system for cooling and / or heating a room and a method of controlling the system. The system includes a fan assembly to transport air from the system into the room, the fan assembly having a substantially continuously adjustable speed within a range of speeds defined by a predetermined upper limit and a predetermined lower limit. A user interface transmits a signal in response to a desired speed of the fan assembly input by an operator via the user interface. The system further includes a control unit to substantially continuously adjust the speed of the fan assembly to a speed in the range of speeds in response to the signal transmitted by the user interface, and a climate control unit for heating and / or cooling the air to be transported from the air conditioner by the fan assembly.

The invention provides a condensation prevention method for an air conditioner, a controller, a system and the air conditioner, and relates to the technical field of air conditioners. The condensation prevention method for the air conditioner comprises the steps that whether an air deflector reaches the condensation critical condition or not is judged according to at least one of the temperature of the air deflector and the set refrigeration temperature, the environment temperature and the ambient humidity, wherein the condensation critical condition comprises the critical temperature difference when condensation occurs under each humidity condition; and if the air deflector reaches the condensation critical condition, the condensation prevention mode is started. According to the method, whether the condition for generating condensation is reached or not can be judged according to the ambient humidity, the temperature, the temperature of the air deflector and the set refrigeration temperature, generation of the condensation can be determined in time, the air conditioner is adjusted to enter the condensation prevention mode under the condition that the condensation is determined to be generated, and therefore the generation of the condensation on the air deflector of an indoor unit can be reduced.

The invention discloses a defrosting control method and a defrosting control device for an outdoor unit of an air conditioning unit as well as an air conditioning system. The method comprises the following steps: obtaining an environment temperature of the outdoor unit, a tube temperature of the outdoor unit and operation current of an outdoor fan; when the operation current of the outdoor fan reaches a preset current value and the tube temperature reaches a preset defrosting temperature, controlling the air conditioning unit to start defrosting; determining the preset defrosting temperature by the environment temperature; when the time that the operation current of the outdoor fan reaches the preset current value exceeds the first preset time, controlling the air conditioning unit to start defrosting; obtaining the operation current of the outdoor fan after the air conditioning unit starts defrosting; and when the operation current of the outdoor fan is smaller than the preset current value after the air conditioning unit starts defrosting, controlling the air conditioning unit to stop defrosting. According to the technical scheme provided by the invention, the heating comfort of the air conditioning unit can be improved.

The invention discloses a self-cleaning control method for air conditioners. The self-cleaning control method includes enabling the air conditioners to detect outdoor environmental temperatures, detecting the temperatures of inlets and outlets of outdoor heat exchangers or detecting the cumulative run time of compressors; enabling the air conditioners to carry out heating running to allow frost to condense on the outdoor heat exchangers when the outdoor environmental temperatures are lower than or equal to preset outdoor temperatures and temperature difference between the inlets and the outlets of the outdoor heat exchangers is lower than or equal to preset temperature difference or the cumulative run time of the compressors is longer than or equal to preset run time; switching the air conditioners into a refrigerating mode. The self-cleaning control method for the air conditioners has the advantages that the air conditioners carry out heating running to allow the frost to condense on the outdoor heat exchangers and then are switched into the refrigerating mode to defrost the outdoor heat exchangers, accordingly, dust accumulated on the outdoor heat exchangers can be cleaned by condensed water generated after the outdoor heat exchangers are defrosted and can be effectively reduced, heat exchange effects of the air conditioners can be effectively improved, and energy consumption can be reduced.

A drain pan for capturing condensate from a cooling coil in an air conditioning system is configured to facilitate condensate drainage from the pan and to inhibit accumulation of condensate therein. The pan includes troughs for collecting condensate and for channeling the condensate to the front part of the pan where the drain openings are located. A back trough has a central hump to enhance the flow of condensate from the back trough in both directions into opposed side troughs. The side troughs are sloped from back to front to conduct the condensate into a front trough to facilitate drainage from the pan. The lowermost portion of the front trough region is defined by a relatively narrow, non-flat area to reduce the amount of condensate residue in the pan.

A condensate overflow prevention assembly prevents condensate overflow in an air cooling system using a fluid level sensor and a pump activated by the fluid level sensor to pump the condensate away from a drainage system when a blockage occurs in the drainage system.

The invention provides an air conditioner indoor unit with a self-cleaning function. The air conditioner indoor unit comprises a case, a humidifying assembly, a spray opening and a heat exchanger of the indoor unit. The case comprises a skeleton and a housing, wherein the skeleton is used for supporting a fan and the heat exchanger of the indoor unit, and the housing covers the skeleton and is provided with an air inlet and an air outlet. The humidifying assembly comprises a water tank and an atomization device used for atomizing water in the water tank. The spray opening is formed in the case and located in the air inlet upstream position of the heat exchanger of the indoor unit and used for outputting water mist formed by the atomization device. The humidifying assembly starts the atomization device when the air conditioner indoor unit executes the self-cleaning function, so that the spray opening is utilized to spray out the water mist to flow through the heat exchanger of the indoor unit, and accordingly the frosting degree at the heat exchanger of the indoor unit is improved. The heat exchanger of the indoor unit operates a condenser mode after frosting, and accordingly attached contaminants are taken away by water formed by defrosting. According to the scheme, the problem that a self-cleaning air conditioner cannot generate enough condensed water in the dry environment, and consequently the self-cleaning effect is affected is solved.

An outdoor unit for an air conditioner allows condensed water generated from an outdoor heat exchanger to be easily discharged, and prevents coldness from the outdoor heat exchanger from being transmitted to a bottom of the outdoor unit, thus preventing freezing of the condensed water on the bottom. The outdoor unit includes a cabinet having a bottom panel, an outdoor heat exchanger installed in the cabinet, and a support member made of heat insulating material supporting the outdoor heat exchanger with a spacing between a lower end of the outdoor heat exchanger and the bottom panel of the cabinet, to prevent condensed water generated from the outdoor heat exchanger from freezing.

A drying apparatus has a heat pump apparatus having a compressor, a radiator, an expansion mechanism and an evaporator connected in this order via pipes through which a refrigerant is circulated. The drying apparatus has a structure in which drying air heated in the radiator is introduced into a subject to be dried, drying air obtained by removing moisture or water from the subject to be dried is cooled and dehumidified by the evaporator, and then the drying air is reheated in the radiator to be reused as renewed drying air. The drying apparatus also has a structure in which drain water generated by dehumidifying the drying air in the evaporator is dropped or sprayed into the radiator.

The invention provides a cleaning method and cleaning device of an air conditioner. The cleaning method comprises the steps of utilizing a heat exchanger in the air conditioner to condense water vapor in the air conditioner into liquid water, removing dirt adhered to the surface of the heat exchanger, judging whether the air conditioner meets the trigger condition of cleaning procedure execution or not before the cleaning procedure execution, and if the air conditioner meets the trigger condition of cleaning procedure execution, executing the cleaning procedure by adopting processing strategies corresponding to the operation working conditions according to the current operation working conditions. The current operation working conditions of the air conditioner are monitored, corresponding cleaning strategies are respectively taken according to different operation working conditions, and accordingly the cleaning effects of the different operation working conditions are met.

The invention provides an automatic cleaning system, an air conditioner and a control method. The automatic cleaning system comprises a water storing device of which the first end is connected to an indoor unit condensed water collector and an outdoor unit condensed water collector, a cleaning water pump of which one end is connected to the second end of the water storing device and while the other end is connected to an indoor unit water sprayer and an outdoor unit water sprayer, a first detecting module for detecting the first operation state parameters of an indoor heat exchanger, a second detection module for detecting the second operation state parameters of an outdoor heat exchanger, and a control module for determining whether to start the cleaning water pump to automatically clean the indoor heat exchanger and / or the outdoor heat exchanger according to the first operation state parameters and / or the second state parameters. According to the technical scheme, the system has the advantages that the heat exchangers can be automatically cleaned, so that the timeliness and efficiency of cleaning of the heat exchangers can be effectively improved, and as a result, the operation reliability of the air conditioner can be improved; in addition, the condensed water can be recycled, and thus the water resource can be saved.

The invention discloses a control method and device for condensation prevention of an air conditioner and the air conditioner. The method comprises following steps: determining whether the wind level set by the air conditioner is higher than medium-speed wind level or not when the air conditioner operates in a cooling state and a compressor of the air conditioner is started; obtaining first temperature difference between indoor ambient temperature of the set wind level and inner evaporator tube temperature when the set wind level is less than or equal to the medium-speed wind level and determining whether the first temperature difference satisfies first pre-set temperature of corresponding wind level in different wind levels below the medium-speed wind level; increasing the angle of a wind guide plate, and / or rotating speed of an inner fan of the air conditioner when the first temperature difference is smaller than or equal to the first pre-set temperature and when the angle of the wind guide plate is the pre-set minimum value, and therefore the air conditioner is in the pre-set condensation prevention mode. The technical scheme provided by the control method and device for condensation prevention of the air conditioner and the air conditioner has following beneficial effects: defects in the prior art such as the proneness of generating condensation, bad environmental health and poor users' experience are solved; condensation is not easily generated; the environmental health is good; and users' experience is good.

A liquid level sensor (100) is added to air conditioner condensation pan(s) (40 and / or 50) to prevent overflow and subsequent house damage by turning off the compressor (80) and the fan (20) by means of a circuit breaker (120) and associated electronics (110).

The invention relates to a method and a device for controlling heat exchange temperature, collecting condensed water and cleaning an air conditioner. A heat exchanger in the air conditioner is utilized for condensing water vapor in the air conditioner into liquid-state water; dirt attached to the surface of the heat exchanger is cleared away; the surface temperature, used for condensation, of the heat exchanger is determined according to the current environment temperature and the current environment humidity, and is used as the expected temperature; the temperature of the heat exchanger is regulated and is maintained at the expected temperature through regulating the rotating speed of a compressor and the rotating speed of a fan in the air conditioner. Through analyzing the influence of the environment temperature and the environment humidity on the dew point, the optimum temperature of the heat exchanger in the current environment is determined, and sufficient condensed water is obtained for clearing dust and dirt on the surface of the heat exchanger. When the practical temperature of the heat exchanger is not consistent with the optimum temperature, the rise or the reduction of the surface temperature of the heat exchanger is realized through regulating the rotating speed of the compressor and the rotating speed of the fan, the surface temperature of the heat exchanger is maintained at the determined optimum temperature, and the water vapor in the air conditioner is condensed into liquid-state water.

A condensate secondary pan for a central air conditioning system is herein disclosed whereby overflow protection of the primary condensate removal system for a fan coil unit of a central air conditioning system is realized. The secondary pan is positioned directly beneath the primary pan of the central air conditioning system to convey condensate safely outside an enclosure should the primary pan overflow due to clogging of the primary drain line, or leak due to cracks or fissures formed in the primary pan. The condensate secondary pan has a predetermined girth sufficient to extend laterally beyond the primary pan of a conventional fan coil unit. The condensate secondary pan also has a bottom panel which is frustoconical in shape, thus minimizing the pooling of condensate on its surface as well as an integral drain pipe connecting means, thereby eliminating the need for a superfluous user supplied connecting means which is typically made of metal and thus is susceptible to corrosion.

System and method are provided for removing condensate from an air-to-liquid heat exchanger of a combined air / liquid enclosed apparatus for cooling rack-mounted electronic equipment. The condensate removal system includes a condensate collector for collecting liquid condensate from the air-to-liquid heat exchanger, and a vaporizing chamber in fluid communication with the condensate collector for receiving collected liquid therefrom. An actively controlled vaporizer vaporizes collected liquid within the vaporizing chamber and a vapor exhaust is in communication with the vaporizing chamber for venting vapor from the vaporizing chamber outside the cabinet containing the combined air / liquid cooling apparatus and rack-mounted electronic equipment.

The invention is applicable to the technical field of refrigerating and provides a method and device for preventing condensation of a refrigerating device. The method includes: calculating the current condensation point temperature according to the current environment temperature and humidity; judging whether condensation risks exist or not according to the current condensation point temperature; if so, performing condensation prevention. By the method, an air outlet of an air conditioner condensates easily in the prior art can be solved.

The invention discloses a condensation prevention control method and device for an air conditioner. The condensation prevention control method includes: detecting the indoor relative humidity of the environment where the air conditioner is located; judging the humidity range where the indoor relative humidity is located; detecting the operation time of the air conditioner; determining the air sweeping time of the air conditioner according to the humidity range and the operation time; controlling the air conditioner to perform air sweeping according to the air sweeping time. By the method, the problems that air sweeping is mechanically controlled on the basis of air conditioner operation time in current air conditioner condensation prevention control and condensation prevention control is poor is accuracy are solved, and accuracy of condensation prevention control for the air conditioner is increased.

The invention provides a cleaning device and cleaning method of a heat exchanger. The cleaning device of the heat exchanger comprises a water storage tank, a water pump and a water spraying device, wherein the water storage tank is used for collecting condensate water generated in the working process of an indoor unit and / or outdoor unit of an air conditioner, a water inlet of the water pump is communicated with the water storage tank, a water inlet of the water spraying device is connected to a water outlet of the water pump, and a water spraying hole facing the heat exchanger of the air conditioner is formed in the water spraying device. According to the technical scheme, the tedious operation of heat exchanger manual cleaning in the prior art is solved, convenience and rapidness of cleaning of the heat exchanger are improved, and reliable running of an air conditioner system is ensured.

The invention discloses an air conditioner control method, belongs to the field of an anti-condensation control method of an air conditioning device and is designed for solving the problems of high cost, poor practicability and the like of the existing method. The air conditioner control method comprises the following steps: when judging that an air conditioner is in a refrigeration mode, substituting an inner pipe temperature value Tn detected by a first thermometer bulb of an indoor unit into a formula, namely a wet bulb temperature Ts=A* inner pipe temperature value Tn+B, so as to obtain the wet bulb temperature Ts, wherein A and B are constant numbers, the A belongs to [-10,10] and the B belongs to [-20,20]; obtaining a relative humidity value S by checking a psychrometric chart or checking a table composed of dry bulb temperatures Tg and wet bulb temperatures Ts in the psychrometric chart; and when the relative humidity value S is more than or equal to 60%, enabling the air conditioner to enter an anti-condensation operation mode. The air conditioner control method can be used for accurately judging according to an actual working environment of the air conditioner and has strong practicability and good anti-condensation effect.