475 results about "Moisture condensation" patented technology

A method of converting air internal energy into useful kinetic energy is based on air flowing through substantially convergent nozzle, which accelerates the air as the cross section of the nozzle decreases thus increasing the air kinetic energy. The increment of the kinetic energy equals to the decrement of air internal energy, i.e., air temperature. Within said nozzle a turbine is placed to convert airflow kinetic energy into mechanical energy that transformed into electrical energy or transferred into a gearbox to provide driving moment. Devices uses this method could use natural wind as airflow source or artificial airflow means. Devices, which incorporate means to create airflow artificially, can be used as engines for land, sea and flying vehicle. Since air temperature drops within the nozzle, moisture condensation exists and liquid water can be accumulated for further use.

The invention provides a power supply device and a vehicle including the same, the condition of moisture condensation at the surface of a battery unit can be prevented, and thermal coupling of the battery unit and a cooling plate (61) can also be maintained. The power supply device includes a battery assembly (5), a box-shaped cover case (16), a cooling plate (61), and a waterproof sheet (19). The battery assembly (5) includes rectangular battery cells (1) arranged side by side. Exterior surfaces of the battery assembly (5) are covered with surfaces of the cover case (16) other than the local of one surface. The cooling plate (61) is thermally coupled to one surface of the battery assembly (5). Coolant flows through the cooling plate (61) whereby transferring heat from the battery assembly (5) to the coolant. The waterproof sheet (19) covers the one surface of the battery assembly (5). Gaps between the battery assembly (5) and the cover case (16) are filled with a sealing material so that a sealing layer (18) is interposed between them. The waterproof sheet (19) is fastened by the sealing layer (18).

The invention aims to provide a rolling bearing that secures a sufficient bearing life economically even when used under such conditions that water from the outside or water formed by moisture condensation may seep into the lubricant or the bearing is affected by the vibrations, and particularly a rolling bearing suited to the electric parts and accessaries of au automobile engine, such as an alternator. To accomplish the object, the hydrogen ion exponent pH of the grease sealed into the inside of the bearing is adjusted in a range of from 7 to 13. For the same purpose, the hydrogen ion exponent pH of the grease is adjusted in a range of from 5 to 13 where a prescribed amount of an organic metal salt or ADTC is added to the grease, where a prescribed amount of an inorganic compound having an average particle size of 2 squarem or smaller is added to the grease, or where a diurea compound containing an aromatic amine or a mixture of the diurea compound is added to the grease as a thickener.

An apparatus and method for separating breathable oxygen gas from a source of gas and then humidifying the oxygen gas while preventing over humidification of the oxygen gas, the apparatus comprising a gas pathway located on a first side of a water transfer member, an oxygen gas pathway located on a second side of the water transfer member and a separator for separating the breathable oxygen gas from a gas located on the first side of the water transfer member and directing the breathable oxygen gas past the second side of the water transfer member while maintaining the pressure of the gas substantially equal to the pressure of the breathable oxygen gas to thereby humidify the breathable oxygen gas while preventing a moisture condensation in the breathable oxygen gas.

The invention discloses a washing method for an air conditioner. The washing method comprises the following steps of: (S1) moisture condensation, namely forming condensate water on the surface of a heat exchanger by refrigeration of the air conditioner so as to wash the surface of the heat exchanger; (S2) frost formation, namely forming a frost layer on the surface of the heat exchanger by refrigeration of the air conditioner; (S3) heating, namely heating by using the air conditioner to realize defrosting so as to wash the surface of the heat exchanger, and sterilizing; and (S4) ventilation, namely making an indoor unit run in a ventilation mode so as to quick dry and cool the heat exchanger. The air conditioner comprises a control device, andoperations of the rotating speed of a fan and the running frequency of a compressor in the steps are preset in the control device. On one hand, the washing method for the air conditioner disclosed by the invention realizes two-step washing, also realizes sterilization, can be used for effectively cleaning the heat exchanger and maintains the heat exchanger to be sanitary and free of pollution; and on the other hand, the rotating speed of the fan and the running frequency of the compressor are set in each stage of the washing method so that the system of the air conditioner is utilized as far as possible, and thus the cleaning effect of theair conditioner is improved.

The invention discloses a composite phase change heat exchanger with a medium-pressure and low-pressure evaporator, which comprises the medium-pressure and low-pressure evaporator and a steam header which are communicated by an ascending pipe and a descending pipe, a water feeding pipe and a steam outputting pipe are arranged on the steam header, an upper section of the composite phase change heat exchanger is positioned in a wind channel of an original air preheater, and a lower section of the composite phase change heat exchanger is positioned in a back flue channel of the air preheater; an automatic control device of the composite phase change heat exchanger adjusts and controls the heat exchange volume of the evaporator and the wall temperature of the lower section of the composite phase change heat exchanger. The composite phase change heat exchanger not only directly produces low-pressure or medium-pressure steam by using the recycled heat through a steam generating device and provides heat usage as a heat supply, but also controls the thermal equilibrium among the heat exchange volumes of the flue gas, the medium-pressure and low-pressure evaporator, a coal economizer and the wall of the air preheater by adjusting the steam flow of the steam outputting pipe of the steam header through the automatic control device, and consequently leads the flue gas temperature at the outlet to be higher than a flue gas acid dew point on the lower section wall surface of the composite phase change heat exchanger, avoids moisture condensation and achieves the purpose of utilizing waste heat of the flue gas to the utmost degree.

A supersonic cyclone separation and pressure return mechanism with multiple air inlet channels is composed of flow guide cavity, jet tube, cyclone separation segment, pressure returning unit, annular liquid discharging outlets between cyclone separation segment and pressure returning unit, and a locator on said pressure returning unit for regulating the gap between liquid discharging outlets.

A number of apparatii for condensing water from the atmosphere are described, whereby atmospheric air is drawn through an enclosed space and moisture condenses on plates or similar contained within the enclosed space and subsequently collected. Most of the apparatii include means to increase the flow of air through the enclosed space to increase the efficiency of moisture collection. A typical apparatus includes a body (11) supporting condenser plates (15) of conical or frusto-conical configuration. Extractor fans, the operation of which are controlled by humidity sensing switches and temperature sensors, provide the increased flow. To promote condensation, typically, cooling ducts (49) are provided through which air-conditioned cool air is passed.

The invention discloses a moisture capture device. The moisture capture device comprises a wave-shaped moisture condensation surface and a water storage device, wherein a radiation refrigeration material serves as a base plate of the moisture condensation surface, protruding portions of the wave-shaped moisture condensation surface are hydrophilic protruding portions, concave portions of the wave-shaped moisture condensation surface are hydrophobic concave portions, the water storage device is arranged at the bottom end of the moisture condensation surface, and droplets are formed by moisture captured by hydrophilic protruding portions, then transferred to hydrophobic concave portions after growing up and transferred to the water storage device along hydrophobic concave portions. The temperature of the condensation surface can be reduced quickly due to the radiation refrigeration material, the moisture in the air is captured by hydrophilic protruding portions and is condensed into droplets, and droplets are transferred to hydrophobic concave portions after growing up and are quickly transferred to the water storage device along hydrophobic concave portions. The device is simple in structure and environment-friendly, can be used in arid areas and semi-arid areas to mitigate the problem of water shortage to a certain extent and can be used in non-arid areas to provide domestic water and production water.

The oil-cooled compressor is equipped with an oil flow path, a discharge temperature detector and a control device. The oil flow path starts from the oil storage part of the oil separator and recovers to the temperature regulating valve with a two-way variable diversion function, and passes through the cooling After the air-cooled oil cooler supplied by the fan, or after passing through the bypass flow path instead of the air-cooled oil cooler, it leads to the above-mentioned gas compression space, and the oil separation and recovery device compresses the gas supplied to the main body of the compressor The oil behind the space is separated and recovered from the discharge gas; the discharge temperature detector detects the discharge temperature of the gas; the control device controls the cooling fan motor and the temperature regulating valve based on the discharge temperature detected by the discharge temperature detector to Adjust the speed of the motor and the split ratio of the temperature regulating valve. The oil-cooled compressor can prevent condensation and precipitation of moisture in the discharge gas, and can save energy.

A light source device which can prevent a large-sized structure of the device, a light source device which can improve assembling efficiency and maintainability of the device, and an image forming method and apparatus in which occurrence of moisture condensation can be prevented, are provided. An LED substrate in which a large number of light emitting diodes (LED) are arranged on the surface thereof in a two-dimensional manner, a base, a Peltier element, and a radiating fin are formed integrally by urging force of a compression spring. The radiating fin is disposed in contact with a light source housing body. Further, in carrying out temperature adjustment control using the Peltier element, the temperature adjustment control is carried out only when the internal temperature of the device in which a light source device is provided, is a predetermined temperature or higher.

The invention discloses a high-temperature flue gas cleaning system which is moisture condensation resistant, and tar film pasting resistant. The system comprises a filtering system, a blowback system and an ash discharging system, wherein the filtering system comprises a high-temperature flue gas connecting pipe, at least one part of a filter connected with the high-temperature flue gas connecting pipe and a fan driving the gas to be cleaned to pass through the filter, the filter is respectively connected with the blowback system and the ash discharging system, the blowback system takes protective gas as a blowback medium, and the blowback system is internally provided with a protective gas heater; and when the high-temperature flue gas cleaning system is turned on, the blowback system is taken as a filter core moisture condensation-resistant system for preheating a filter core in the filter in a blowing way, and when the high-temperature flue gas cleaning system is turned off, the blowback system is further taken as a protective gas displacement system for displacing the original gas in the filter in a blowing way. In the stage that high-temperature flue gas cleaning system is turned on, the filter core is preheated by the protective gas, so that the phenomena of moisture condensation and tar film pasting on the surface of the filter core can be avoided.

The invention relates to a fresh air variable air rate energy saving method and device based on absolute humidity control. The fresh air variable air rate energy saving method is characterized in that the fresh air variable air rate energy saving device based on the absolute humidity control is arranged at the tail end of the fresh air system of an air conditioning system, the opening degree of a valve is automatically controlled through the fresh air variable air rate energy saving device according to the change of indoor humidity, and the fact that the volume of fresh air supplied indoors meets indoor actual dynamic needs is guaranteed; the air volume is automatically adjusted according to the change of the moisture content, namely, the absolute humidity of a room, air output by a fresh air handling unit is dry air of a fixed state, and the relative humidity value of the room is guaranteed; the coupling relationship of relative humidity and dry-bulb temperature is relieved. The absolute humidity, an indoor environment parameter, is controlled, the indoor relative humidity can be precisely controlled, the coupling relationship of the relative humidity and the dry-bulb temperature is relieved well, the moisture condensation risk of a cold emission plate is avoided, meanwhile, control is stable and reliable, and the fresh air variable air rate energy saving method and device have good comfort and the good energy saving effect.

The invention discloses a heat and humidity segmented treatment air-conditioning device and method combined with radiation cold supply. The device mainly comprises a cold water unit, an air treater, a radiation coil pipe, a water pump, an electromagnetic valve and a pipeline. In a system, chilled water obtained by the cold water unit is used for cooling and dehumidifying air, and is supplied to a ceiling or a floor radiation coil pipe for radiation cold supply to realize segmented treatment of heat and humidity loads in a room. The radiation coil pipe is used for supplying cold and bearing a part of sensible heat load in the room, and dehumidified supply air is used for bearing the other part of sensible heat load in the room and indoor humidity load and preventing a radiation surface from moisture condensation. Chilled water is segmentally applied to dehumidification and radiation cold supply, and the temperature difference between supply water and return water is about 7-10 DEG C. A refrigeration cycle of a water chilling unit is realized with a non-azeotropic refrigerant, and good temperature matching of chilled water and the refrigerant in the heat exchanger is realized by means of the temperature slippage characteristic of the non-azeotropic refrigerant, so that the performance coefficient of the unit is increased.

The invention relates to a preparation method of a multifunctional humidifying interior wall paint. A basic formula is as below: 12%-35% of emulsion, 5%-20% of titanium dioxide, 10%-20% of diatomite, 1%-6% of sepiolite, 3%-10% of a zinc oxide whisker composite additive, 0.1%-0.5% of water-absorbent resin, 5%-10% of calcium carbonate, 1%-3% of talcum powder, 1%-5% of propylene glycol, 2%-5% of an additive agent and 20%-35% of deionized water. The multifunctional humidifying interior wall paint fully complies with the indexes of GB / T9756-2001, and also has effects of temperature control and adjustment, energy saving, environmental protection, moisture absorption, moisture liberation, humidifying to prevent moisture condensation, purifying the air, negative ion ecology and killing bacteria and mold, and can be widely used in inside wall coating of living room, classroom, office and hospital.

The invention relates to a water collecting apparatus through solar energy semi-conductor refrigeration moisture condensation method, which comprises a heat regenerator, a heat insulation layer, a water condensation chamber, a water collection device, a water discharge valve, a radiating fin, a draught fan, a two-dimensional turntable, a solar cell panel, a cold plate, a thermoelectric stock, a temperature and humidity transducer and a single chip system, wherein the battery plate is fixed on the turntable, a plate regenerator is arranged to increase the water collection ratio, the solar cellpanel is used for current supply for semi-conductor refrigeration, the natural air is driven by the draught fan to flow through the cold plate continuously, aqueous vapor in the air is condensed intowater drops, and flows into the water collector through the water condensing chamber, thus realizing refrigeration, cooling, condensation of moisture and water collection. The advantages of the invention are small volume, light weight, high water collection efficiency and convenience in carrying.

A new simulator of the human head and animal bodies mimics moisture transpiration from eyes and skin and heat emission. The present invention used to demonstrate and quantify anti-fogging performance of goggles and apparel. Thin water permeable membranes are mounted onto a container containing a thermostatically controlled, heated and stirred reservoir of water as a simulation of the moisture source of the human eyes and skin. A light source and optical mesh patterns help illuminate water condensation on the inner lens of the goggles. The simulator results in a reliable and convenient demonstration and testing system for moisture condensation in goggle lenses, and heat and moisture apparel.

The present invention relates to a ceiling type air conditioner, capable of preventing an moisture condensation phenomena of an outlet. According to an embodiment of the invention, the ceiling type air cinditioner includes at least an outlet having inner side faces; a wind guide plate arranged in the outlet for adjusting the wind direction of the cold air; at least an air duct guide structure arranged on one face of the inner side faces for transferring the discharge direction of the cold air to the length direction of the outlet.

The invention discloses a double-hollow glass ceiling module with a film suspended therein. An optical control film serves as a middle layer, and an internally suspended film structure frame, a mounting structure frame, a reinforcing separating strip and glass are sealed into an integral double-hollow glass plate. An inner structure frame and an outer structure frame are made from a novel heat-isolating material with a coefficient of thermal expansion similar to that of the glass. The internally suspended film structure frame is structurally connected through a heat-isolating bridge. A butyl rubber tape on the outer surface of the internally suspended film structure frame serves as a first sealing layer. A second sealing layer consists of the external reinforcing separating strip and a silicone structural sealant, the whole structure is always consistent to the thermal deformation of the glass, so that the sealing capability of the whole system is more reliable, and the heat-isolating property, the moisture condensation-preventing property, the sound-isolating property and the like are greatly improved. Dirt is not easily accumulated on the outer surface of a mounted ceiling, so that the ceiling is convenient to clean and maintain. The double-hollow glass ceiling module has a flexible assembling and mounting way, and can be applied to different vertical surfaces of an outer building rail.

The invention provides an application and device of air internal energy. A method of converting the internal energy of air into useful kinetic energy based on the flow of air through a generally tapered nozzle which, due to the reduced cross-section of the nozzle, accelerates the air thereby increasing its kinetic energy . The increase in kinetic energy is equal to the decrease in the internal energy (ie temperature) of the air. A turbine is arranged inside the nozzle to convert the kinetic energy of the airflow into mechanical energy, which is converted into electrical energy or transmitted into the gearbox to provide driving torque. Devices using this method can utilize natural wind as the source of air flow or use artificial air flow devices. Devices incorporating means for artificially generating airflow can be used as engines for land and sea vehicles and aircraft. As the air temperature in the nozzle decreases, moisture condensation occurs and liquid water can be stored for further use.

A pressurized transport oxy-combustor with different configurations is disclosed. Substantially pure oxygen is fed to the transport oxy-combustor under pressure to combust fossil fuels, generating steam for power generation. The end product is the flue gas containing substantially pure CO2 after moisture condensation. The low excess oxygen necessary to achieve complete combustion in the combustor is scavenged by adding another fuel so that substantially all oxygen fed to the combustor is completely consumed. The capability to operate the transport oxy-combustor as a circulating fluidized bed combustor at very high solids circulation rates makes it unnecessary to use recycled CO2 or flue gas as a means to moderate and control the combustion temperature. The temperature in the combustor is effectively controlled by relatively cooler circulating solids that enter the combustion zone. A small amount of CO2 is recycled for aeration and to convey solids fuel to the combustor.

The invention provides a potato starch graft emulsion which is formed by carrying out monomer graft polymerization on potato starch, unsaturated alkyl acid, styrene, methyl methacrylate, butyl methacrylate, butyl acrylate, hydroxypropyl methacrylate, hydroxy-ethyl methacrylate, acrylic amide, diacetone acrylamide and the like. The potato starch graft emulsion is taken as main film forming matter of paint and is added with conventional inorganic polymer filler which is adopted for preparing the paint, so that the prepared paint has the functions of decoration, humidity adjustment, permeability, heat preservation, moisture condensation prevention, water and alkali resistance, antibiosis and the like; meanwhile, the invention also can prevent a coating from falling off caused by various leakage and water condensation of a wall body, thus ensuring the coating to be more durable; and the potato starch graft emulsion does not contain organic solvent and is safer and more environment-friendly.

The invention relates to a refrigerator, in particular to a top-blowing anti-condensation refrigerator. The top-blowing anti-condensation refrigerator comprises a freezing chamber door, a freezing chamber doorknob, a refrigerator side panel, a refrigerating chamber door, a refrigerating chamber doorknob, an air curtain machine, an air supply outlet, an air inlet, a blower motor and a fan, wherein the air curtain machine is arranged on the top of the refrigerator; and the fan and the blower motor are arranged in the air curtain machine. The invention has the advantages that: after the top-blowing anti-condensation refrigerator is used, cold and hot air is separated by an air curtain when the door is opened, so that energy loss and moisture condensation can be avoided; and the top-blowing anti-condensation refrigerator can be simply controlled, manufactured and mounted and is easy to produce and operate.

The invention discloses a diatom-ooze indoor-wall decoration material. The diatom-ooze indoor-wall decoration material is prepared by matching diatomaceous earth, plant debris, an adhesive, a thickening agent and a pigment according to proportion and mixing. The product produced by adopting a method is used for decorating the indoor wall, has the effects of adsorbing and decomposing formaldehyde, benzene, toluene, xylene and ethylbenzene and solves the problem of pollution to environment of other indoor-wall decoration materials. The components of the diatom-ooze indoor-wall decoration material are natural plants such as pine sawdust, camphor chips, lavender, wormwood and crop straw, can send out plant aroma persistently to endow the indoor space with natural flavor so that people can relax, are good for physical and mental health and have crack resistance. The surface of the wall decorated by the diatom-ooze indoor-wall decoration material is visually soft and full and looks like the pile surface in texture. Having the advantages of the porous structure and the large specific surface area of the diatomaceous earth and plant fibers, the diatom-ooze indoor-wall decoration material has the effects of humidifying automatically, preventing moisture condensation, insulating heat, resisting against mildew and mites, sterilizing, deodorizing and treating decoration pollution syndromes. As the pine sawdust, the camphor chips, the lavender, the wormwood and the crop straw are used as the raw materials for producing the diatom-ooze indoor-wall decoration material, a new way is provided for the comprehensive utilization of agricultural and sideline products. The method for producing the diatom-ooze indoor-wall decoration material is simple and is easy to implement.

The invention provides a refrigerator which comprises a container arranged in the refrigerator, a moisture sensing and transmitting film and a non-woven cloth, wherein the moisture sensing and permeating film is arranged on at least one face of the container, the moisture permeating ability of the moisture sensing and transmitting film changes according to humidity in the container, and non-woven cloth is arranged on the face, located outside the container, of the moisture sensing and transmitting film, and the shear strength of the non-woven cloth is larger than that of the moisture sensing and transmitting film. According to the refrigerator, through the moisture sensing and transmitting film and the non-woven cloth arranged on the container, high humidity in the container can be maintained, moisture condensation can be avoided, and a good fresh keeping effect is achieved.

The invention relates to the technical field of total heat recovery, in particular to a rotating wheel type total-heat-recovery fresh air unit which comprises a unit shell. The unit shell is provided with a fresh air inlet cavity, a recovery cavity, an air supply cavity, an air return cavity and an exhaust cavity. A primary filter and a medium-efficiency filter are sequentially arranged in the fresh air inlet cavity from outside to inside. An energy recovery rotating wheel is arranged in the recovery cavity. A second heat exchanger, a condensation heat recoverer, a humidifier and a blower are sequentially arranged in the air supply cavity from inside to outside. A compressor and a four-way reversing valve are sequentially arranged in the air return cavity from outside to inside. A first heat exchanger and an exhaust fan are arranged in the exhaust cavity. The rotating wheel type total-heat-recovery fresh air unit has the beneficial effects that fresh air and exhausted air are subjected to total heat recovery firstly through a rotating wheel heat recovery device, then an evaporator of a heat pump system is used for cooling and dehumidifying the fresh air, a condenser of the heat pump system is then used for carrying out proper heating treatment, and therefore the risk of moisture condensation caused by the too low air outlet temperature is avoided. In addition, the structure is simple, design is reasonable, and manufacturing cost is low.

The invention discloses a thin-film isolation gauge pressure sensor with a built-in balance chamber. By the aid of the thin-film isolation gauge pressure sensor, constantly unsolved major difficult problems of damage to sensors and influence on normal use of the sensors with open atmospheric reference pressure ends can be solved. The technical scheme includes that the atmospheric pressure automatic compensation balance chamber with a thin isolation film is arranged in a cavity which is arranged between the upper portion of a shell of a force sensing element and a connecting seat of an externally connected circuit board and is communicated with an atmospheric reference pressure end, the lower portion of a cavity body which is isolated by the thin isolation film is communicated with a pressure guide cavity body on the lower portion of the shell of the force sensing element to form a closed pressure guide cavity, and the upper portion of the cavity body is communicated with the atmospheric reference pressure end. The thin-film isolation gauge pressure sensor has the advantages that the thin-film isolation gauge pressure sensor is compact in structure, reasonable in design, easy to manufacture and safe and reliable in operation and can be isolated from external environments, atmospheric pressures can be automatically balanced, the sensor can be effectively prevented from being damaged by moisture condensation, corrosion and the like, accordingly, the stability of the sensor can be improved, the protection grade and the explosion-proof grade of the sensor can be upgraded, normal use of the sensor can be guaranteed, and the service life of the sensor can be prolonged.

The invention relates to a high-low temperature test box, which comprises a casing, a working chamber, a refrigeration system, a heating wire and an electrical system. The front face of the casing is provided with an open type box door, and the working chamber, the refrigeration system, the heating wire and the electrical system are arranged in the casing. The working chamber is arranged on the rear portion of the box door, the refrigeration system is arranged on the lower portion of the working chamber, the heating wire is arranged on the rear portion of the working chamber, the outsides of the working chamber and the heating wire are wrapped with heat insulation cotton, and the electrical system is arranged on one side of the working chamber. Compared with the prior art, the high-low temperature test box can save energy consumption by 20%, and equipment can not be affected under low temperature. The high-low temperature test box can automatically control heating according to the difference of monitored temperature so as to avoid moisture condensation of an observation window and has the advantages of being transparent, heat-insulation, not prone to generate steam frosting and the like. A gluing piece type conducting film is arranged on the inner side of the high-low temperature test box, thereby conveniently observing situation in the box from the observation window at any time, being completely independent in warming, cooling and system, improving efficiency, further reducing testing cost, prolonging service life, and reducing fault rate.

The invention relates to a constant temperature and moisture test box, comprising a box body, a work room, a cooling assembly, a heating assembly, a humidifying assembly and an electric assembly, wherein the work room, the cooling assembly, the heating assembly, the humidifying assembly and the electric assembly are all set in the box body. In comparison with the existing technology, the invention uses nicochrome electrical heating type heater to heat such that it has an energy saving function and can save 20% of energy consumption. In addition, the device can be used at a low temperature without any influences. The observation window is made of multi-layer hollow toughened glass, and inner side thereof is glued with a chip conductive film which automatically control heating according to different monitored temperature to prevent moisture condensation on the observation window, and is advantaged by transparency, heat insulation and is advantaged that steam condensation can not be produced easily. The inner side of the box can be conveniently observed through the observation window at any time. The illumination in the box is fluorescent lamp illumination and the vision is tender and bright such that the test process can be observed clearly and power consumption can be reduced.

With a view to cooling components for an MRI system neither more nor less and without the generation of noise or without a fear of moisture condensation, a component for which cooling with air suffices, out of the components for an MRI system, is cooled as an air-cooled component with cold air which is blown down from an air conditioner indoor machine, while a component to be cooled with air, out of the components for an MRI system, is cooled with cooling water.