741 results about "Evaporative cooler" patented technology

A low profile evaporative cooler housing for attachment to a building includes a front panel, and an opposing rear panel that may have an extension that extends into a wall of the building. A first and second louver may extend between the front and rear panels.

A cooler for an air conditioning system or other system having a heated surface to be cooled has an array of nozzles for issuing a fine spray of liquid. A fan of the cooler induces flow of air over a surface to be cooled, the nozzles issuing into the flow of air the fine spray at a distance from the heated surface such that the liquid of the fine spray is fully evaporated prior to contact with the heated surface. Drop sizes of 20 to 30 microns are typical.

Methods and systems are provided for air conditioning, capturing combustion contaminants, desalination, and other processes using liquid desiccants.

An improved method and apparatus for indirect evaporative cooling of a fluid stream to substantially its dew point temperature. Plate heat exchanger has perforations 11 and channels 3, 4 and 5 for gas or a low temperature for liquids on a dry side and wet side. Fluid streams 1 flow across the dry side 9, transferring heat to the plate. Gas stream 2 flows across the dry side and through perforations to channels 5 on wet side 10, which it then cools by evaporative cooling as well as conductive and radiative transfer of heat from plate. A wicking material provides wetting of wet side. In other embodiments, a desiccant wheel may be used to dehumidify the gas, air streams may be recirculated, feeder wicks 13 and a pump may be used to bring water from a water reservoir, and fans may be used to either force or induce a draft. The wicking material may be cellulose, organic fibers, organic based fibers, polyester, polypropylene, carbon-based fibers, silicon based fibers, fiberglass, or combinations of them. The device may be operated in winter months to scavenge heat from exhaust gases of a space and thus pre-heat fresh air, while simultaneously humidifying the fresh air.

An indirect evaporative cooler includes a number of heat transfer plates. Each plate has a wet side and a dry side, and the dry sides of adjacent plates face each other. The plate dry sides have low permeability to an evaporative liquid. Input air flows over the dry sides from an input end to an output end. Part of the input air becomes product air and exits at the output end. The rest of the input air passes through perforations in the plates to the other side of the plates to become working air. The other side of each plate is a wet side, which is wet by an evaporative liquid. Working gas flows over the wet side, evaporating the evaporative liquid and cooling the evaporative liquid, the plate, and finally the product gas by heat transfer. The perforations are formed both toward the input end of the plate and toward the output end of the plate. Part of the wet side of the plate, toward the output end of the plate, has a plurality of barriers placed to cause the working gas at that end of the plate to flow in a direction generally counter to the input air.

An automotive air conditioning system is disclosed comprising an evaporative cooler in series with the conventional vapor compression system. The evaporative cooler comprises an array of dry channels and a contiguous array of wet channels. The primary air stream to be conditioned by the evaporator of the conventional air conditioning system is preconditioned by the evaporative cooler by lowering its dry bulb temperature without changing its absolute humidity. An evaporator core is supported downstream of the evaporative cooler for receiving the primary air from the dry channels and thereby produces liquid condensate. The system is distinguished by conducting the liquid condensate from the evaporator core to the wicking tank for use in the wet channels of the evaporative cooler.

An evaporative cooler, including one or more media, distributes water from a source of water to each media through a constant flow valve. A distribution unit at each media includes a pair of spray bars for spraying water through two rows of uniformly spaced apertures disposed in each spray bar. A spray bar channel associated with each spray bar distributes the streams of water impinging thereupon from one row of apertures to the underlying media in specific locations. A distribution cap associated with each spray bar distributes streams of water impinging thereupon to the front and back edges of the underlying media. The water dripping from the media is drained. A fan or other air moving device draws air through the media to obtain cooled air resulting from evaporation of water flowing downwardly along the media. A microprocessor controller, responsive to any of one or more sensors for sensing the temperature of the air flowing into and out of the media, the relative humidity of the air flowing into and out of the media, the pressure differential between the upstream and downstream sides of the media, the temperature of the water flowing to the spray bars, the fan speed, and the pressure differential between the downstream side of the media and the downstream side of the fan, controls the flow of water and the fan speed.

A method for installing an evaporative cooler in a window located in a building includes placing an evaporative cooler housing below the bottom of the window. A duct is attached to the housing and extended upward to the window. A frame is placed between the movable portion of the window and the building. The second portion of the duct is secured to the frame and the frame is operatively secured between a movable portion of the window and the building. An evaporative cooler, adjustable duct assembly, diverter and frame assembly are also disclosed.

The invention discloses a multilevel heat recovery composite dehumidifying fresh air treatment machine, which comprises an air treatment path consisting of a plate heat exchanger, a precooling dehumidifier, a drying rotary wheel, a moisture heat recovery rotary wheel, an air feed temperature regulator and an air feed fan which are connected in series in turn through an air pipe, and an air regeneration path consisting of an evaporative cooler, a plate heat exchanger, a moisture heat recovery rotary wheel, a low-temperature heat pump heat recovery device, a high-temperature heat pump condenser, a drying rotary wheel, a high-temperature heat pump evaporator and a regenerating fan which are connected in series in turn. Due to multilevel heat recovery, heating energy consumption of regenerating air and cooling energy consumption of treating air are reduced, and the aim of saving energy is fulfilled. Meanwhile, due to two-stage combined dehumidification, the dehumidifying capacity of the set can be effectively improved, and the air treatment machine is applicable to air conditioning in summer and heating in winter for various public buildings, commercial buildings and industrial buildings, and is suitable for fresh air treatment for a large central air-conditioning system and particularly suitable for fresh air treatment for an independent temperature and humidity control air-conditioning system in a warm and humid area.

An evaporative cooling system includes an evaporative cooler liquid-to-air membrane energy exchanger (LAMEE), a first liquid-to-air heat exchanger (LAHE), and a cooling fluid circuit. The evaporative cooler LAMEE is disposed within a scavenger air plenum that is configured to channel a scavenger air stream. The first LAHE is disposed within a process air plenum that is configured to channel a process air stream. The cooling fluid circuit is configured to circulate an evaporative cooling fluid between the evaporative cooler LAMEE and the first LAHE. The evaporative cooler LAMEE is configured to utilize the scavenger air stream to evaporatively cool the cooling fluid. The first LAHE is configured to receive the cooling fluid from the evaporative cooler LAMEE and to allow the cooling fluid to absorb heat from the process air stream to cool the process air stream.

A two grade runner dehumidification air-conditioning device, which belongs to refrigeration dehumidification technical field and can make use of low grade heat source, includes two stage dehumidification runners, two stage heat exchanges, two heaters, an evaporative cooler, a treating fan, a regeneration fan, a motor and a belt or a gear. The motor is connected with the dehumidification runners through the belt or the gear and drives the dehumidification runners to rotate. Every dehumidification runner is equipped with two areas of a treating area and a regeneration area. The treating area of the first stage dehumidification runner is connected with the inlet of the first stage heat exchanger. The outlet of the first stage heat exchanger is connected with the treating area of the second stage dehumidification runner. The other side of the second stage dehumidification runner is connected with the second stage heat exchanger. The second stage heat exchange is connected with the evaporative cooler. The evaporative cooler is connected with the treating fan. The regeneration fan is respectively connected with the regeneration areas of the two stage dehumidification runners. Two heaters are respectively connected with the other sides of the regeneration areas of the two stage dehumidification runners. Enough temperature and humidity descending can be achieved by the invention without an electric refrigeration air conditioning.

The invention belongs to the technical field of gas purification, and discloses converter gas dry-method bag-type purification and recovery technology and a converter gas dry-method bag-type purification and recovery system. The technology comprises: a converter generates high-temperature ash-laden gas under the condition of oxygen blowing and smelting, and the temperature of the high-temperature ash-laden gas is reduced to be between 800 and 1,000 DEG C by a vapourization cooling system; the ash-laden gas enters an evaporative cooler through an expansion joint and is atomized and cooled by a two-phase injection device which is formed by vapor or nitrogen and water, and the temperature of the gas is reduced to be approximately 200 DEG C; the gas enters a bag-type duster for filtration and purification; and purified gas is subjected to switching control by a three-way switch valve according to gas recovery conditions of the system, and is recovered or discharged respectively. The invention has the advantages that the technology has high gas purification efficiency, and the system has low running resistance, energy consumption, operating cost and maintenance cost and no secondary pollution such as sewage. The technology is novel energy-saving and environment-friendly technology with wide promotion value, and can be widely applied to the converter gas purification and recovery system.

A process whereby freshwater is generated and wastewater is eliminated through the employ of waste combustion gas; wherein combustion gas is cooled below dewpoint, via the effects of a wastewater fed evaporative cooler, resulting in the combined benefits of freshwater generation from the combustion gas and evaporative reduction of the wastewater.

A system includes an intercooler configured to receive an airflow from a first compressor, to transfer heat from the airflow to a working fluid, and to provide the airflow to a second compressor. The system also includes an evaporative chiller configured to receive the working fluid from the intercooler, to chill the working fluid via evaporative cooling within an ambient air environment, and to provide the working fluid to the intercooler. In addition, the system includes a desiccant system configured to reduce a humidity of ambient air within the evaporative chiller.

The invention discloses a closed evaporation cooling high-temperature cold water unit which comprises an evaporation cooling coil pipe, a filter I, a water distributing device I, a water blocking plate I and a fan, wherein the filter I, the water distributing device I, the water blocking plate I and the fan are sequentially arranged at the upper part; a group of pipe type indirect evaporative coolers are arranged outside both sides of the bottom of the evaporation cooling coil pipe; the upper part of each pipe type indirect evaporative cooler is sequentially provided with a filler II, a water distributing device II and a water blocking plate II; the lower part of each pipe type indirect evaporative cooler is provided with an opening type water tank II; the lower part of the evaporation cooling coil pipe is provided with an opening type water tank I, and the opening type water tank II and the opening type water tank I are separated by a barrier; the opening type water tank II is communicated with the water distributing device II by a pipeline; and the opening type water tank I is communicated with the water distributing device I by a pipeline. The unit can meet the requirement of the water temperature at a dry type or dry working condition sensible heat tail end, prevent a phenomenon of dew formation at the sensible heat tail end and conform to the requirement of the water temperature of an evaporation cooling semi-centralized type air-conditioning system in the northwest district.

This invention is an integrated system comprised of a flat plate, air-to-air heat exchanger, ducting and controls, and an AZFlow™ direct evaporative cooler in configurations where the system is able to provide air that has been cooled well below the ambient wet-bulb to temperatures approaching the dew point. These include: A) a two stage cooler where one evaporative cooler performs the stage one cooling by direct evaporative cooling, of the ambient air. This air is directed to the secondary side of the air to air heat exchanger where it indirectly and sensibly cools primary air which is then cooled by a second evaporative cooler which is able to produce the desired cool air approaching the dew point; B) an energy recovery cooling system where building exhaust is collected and directed to the secondary side of the air to air heat exchanger where it indirectly and sensibly cools primary air which is then cooled by an evaporative cooler which is able to produce the desired cool air approaching the dew point; C) an indirect evaporative cooler where an evaporative cooler performs direct evaporative cooling of the ambient air. This air is directed to the secondary side of the air to air heat exchanger where it indirectly and sensibly cools primary air. This sensibly cooled primary air can be used as input to a broad number of applications including but not limited to: inlet air to cooling towers producing water chilled to temperatures approaching the dew point which itself has a broad range of uses, and building makeup air in areas other than the most humid where cooling the air below ambient conditions reduces the energy required to maintain the building environment.

The invention discloses a square porous ceramics vertical-tube dew point indirect evaporation cooler device comprising a cooler core, a water-distributing device, a fan, a water-storage and a pump which are arranged inside a cooler casing. The cooler core is formed by a plurality of heat exchanging tubes which are vertically arranged to form a multi-line multi-row matrix form which is divided into three sections; the length of the three sections of heat exchanging tube decreases progressively along a first-time air feeding direction, and clapboards are arranged between each two sections of heat exchanging tube; the water-distributing device comprises a diversion grid and a spraying tube which are arranged on the top of each heat exchanging tube. The structure of the invention leads the first-time air to horizontally pass the square ceramics bundle and leads a second-time air to flow through the bundle from bottom to top; then the first-time air sequentially passes through the three sections of the core and the temperature of the air entering the second-air channels from different section is decreased gradually, and the temperature of the final wet-bulb is also decreased gradually after a heat and moisture exchanging with water. The structure of the invention can greatly enhance the heat and moisture exchanging efficiency and the water distribution becomes more equal so as to lead the temperature of vented air to approach that of the dew point.