113results about How to "Achieve the purpose of cooling" patented technology

The invention relates to a liquid nitrogen strong cooling transformer and a refrigerating method thereof. The transformer comprises a transformer oil tank and a liquid nitrogen tank; the liquid nitrogen tank is connected with a liquid nitrogen outlet pipe; the transformer oil tank is connected with a gas nitrogen outlet pipe; an evaporating pipe is coiled in the transformer oil tank; one end of the evaporating pipe is communicated with the liquid nitrogen outlet pipe and the other end of the evaporating pipe is communicated with the gas nitrogen outlet pipe; the gas nitrogen outlet pipe is sequentially provided with a liquid nitrogen compressor, a condenser and a throttling valve; the tail end of the gas nitrogen outlet pipe extends into the liquid nitrogen tank; a temperature sensor is arranged in the transformer oil tank; and the liquid nitrogen outlet pipe is provided with a heat preservation electromagnetic valve electrically connected with the temperature sensor. The liquid nitrogen strong cooling transformer and the refrigerating method thereof have the beneficial effects that 1, heat exchange is carried out between liquid nitrogen and transformer oil, heat exchange efficiency is high and gas nitrogen is retransformed into liquid nitrogen by the liquid nitrogen compressor and the condenser and is recycled; and 2, the transformer oil in upper and lower cavities of the transformer oil tank is repeatedly circulated by a transformer oil circulating pipe and a circulating oil pump so as to enable the oil temperature to be balanced.

The invention discloses a method for preparing rose calcium carbonate from low-grade limestone, which comprises the following steps: 1) proportionally calcining low-grade limestone and blind coal to prepare calcium oxide; 2) screening under vibrations to remove coal ash and lime powder, thereby obtaining lumpy lime; 3) adding water to slake the lumpy lime, removing impurities by hydrocyclone and vibration screening to obtain fine emulsion slurry, adding a whitener, and aging to obtain the Ca(OH)2 prime slurry; 4) after regulating the temperature and concentration of the Ca(OH)2 prime slurry, adding a crystal form control agent, carrying out bubbling carbonation reaction, and adding a dispersant; when the pH value of the slurry is lower than or equal to 7, stopping carbonation to obtain a cured slurry; and 5) after the cured slurry is thickened, dehydrating to obtain the rose calcium carbonate. Compared with common light calcium carbonate, the rose calcium carbonate disclosed by the invention has the advantages of higher crystal completeness, high surface porosity, high light scattering coefficient and stronger covering power; and the invention is applicable to the industries of paper making, rubber, plastics and paint.

The invention provides a photovoltaic drive solar air collector which comprises a collector cavity and a collecting plate arranged in the collector cavity, wherein the collector cavity is also internally provided with a solar photovoltaic plate, an S-shaped air channel, a wind guide plate and a partition plate; the wind guide plate divides the collector cavity into a front cavity and a back cavity, the partition plate is arranged in the back cavity and divides the back cavity into a back upper cavity and a back lower cavity, the solar photovoltaic plate and the collecting plate are connected together and the solar photovoltaic plate is arranged above the collecting plate, meanwhile, the solar photovoltaic plate and the collecting plate are arranged in the front cavity and divide the front cavity into a sunny cavity and a shaded cavity, and the S-shaped air channel is arranged in the shaded cavity. The collector has the advantages of complete heat exchange, good heat exchange effect, high heat utilization, low use cost and high economy.

The invention relates to the technical field of cooling of electric control units of air conditioners and provides a cooling system and method for an electric control unit of an air conditioner. The cooling system and method are used for cooling the electric control unit of the air conditioner. The system comprises a compressor, an outdoor unit, a throttling element and an indoor unit which are sequentially connected to a first loop in series. The system further comprises a first passage. One end of the first passage is communicated with the first loop. The other end of the first passage is communicated with an inlet of the compressor. The first passage is used for making a small number of condensing agents flow out of the first loop. The electric control unit is cooled in a heat exchange mode. Due to the fact that the temperature of the condensing agents is far lower than the temperature of a chip of the electric control unit, the purpose of cooling can be realized by communicating the first passage with any joint in the first loop. In addition, only a small number of condensing agents are made to flow out of the first loop, so that normal operation of the air conditioner is influenced slightly.

A new energy automobile battery damping and cooling device and a battery temperature adjusting device belong to the field of new energy automobiles. The damping and cooling device comprises a sealed cooling liquid tank, a cooling pipeline connected with an inlet and an outlet of the cooling liquid tank, and a radiator connected to the cooling pipeline. A battery is arranged in the sealed cooling liquid tank. A partition plate is arranged in the cooling liquid tank in a sealing manner, and the partition plate is connected with the battery in a sealing manner and moves along with the battery. The partition plate is connected with one-way valves communicating the cooling liquid on the two sides of the partition plate and pressure release valves. Elastic connecting pieces are arranged betweenthe two ends of the battery along the liquid flowing direction and the cooling liquid tank. In the running process of an automobile, the battery vibrates and extrudes the cooling liquid in the coolingliquid tank to flow in one direction, the cooling liquid circulates along the cooling pipeline, and the cooling liquid flows back into the cooling liquid tank after being cooled by the radiator. Thebattery can be automatically damped and cooled in the running process of the automobile, and therefore, the service life of the battery is prolonged.

The invention provides a centrifugal cutter. The centrifugal cutter comprises a cutter body, the top surface of the cutter body is provided with a plurality of blades, which are distributed around the central line of the cutter body in a radiating mode, and the cutter body and the blades are of an integrally formed structure. The invention also provides a grass trimmer. By integrating the blades on the upper portion of the centrifugal cutter, during grass trimming, the internal control circuit board and the motor of the grass trimmer can achieve the aims of air circulation and further cooling, meanwhile, meanwhile, pressure difference can be formed between the top and the bottom of a cutter rest and further micro circulation can be formed to exhaust grass clippings and dust, and further dustproof effects can be achieved.

The invention provides a resin bath for a photocureable 3D printer. The resin bath comprises a bottom wall, a peripheral wall and a supporting plate. The bottom wall is provided with a first hole and a second hole; the peripheral wall is arranged on the bottom wall and forms a first cavity with the bottom wall; the supporting plate is parallel to the bottom wall and disposed in the first cavity; the four sides of the supporting plate are connected to the periphery wall; a second cavity located in the first cavity is formed between the supporting plate and the bottom wall; and the first hole and the second hole are communicated with the second cavity. By the resin bath, the second cavity is filled with cooling water fully, and heat gathered by the resin bath (especially gathered at the bottom wall of the resin bath) is absorbed circularly by the cooling water. The resin bath is simple in structure, low in manufacturing cost and good in cooling effect, achieves the purpose of cooling without changing of external structure of existing resin bath, and has high generality.

The invention belongs to the technical field of a motor, and in particular relates to a motor rotor body. With the adoption of the motor rotor body, the technical problems that the traditional technical design is not rational and the like are solved. The motor rotor body comprises a body which is formed by overlapping a plurality of rotor sheets; the center of the body is provided with a central hole for fixing a rotor shaft and the outer edge of the body is provided with a plurality of dovetail bodies which are provided with big outer ends and small inner ends and are uniformly distributed in a circumferential direction; a dovetail groove which is provided with the small outer end and the big inner end is formed between two adjacent dovetail bodies and the dovetail groove is internally provided with a magnetic steel body; and the motor rotor body is characterized in that: the dovetail bodies are provided with slot bodies which can be used for eliminating the gap between the magnetic steel body and the dovetail bodies so as to fix the magnetic steel body into the dovetail groove when the slot bodies are expanded under the effects of external forces. The motor rotor body provided by the invention has the advantages of small abnormal sounds and noises, strong deformation resistance, high mechanical strength, long service life and the like.

The invention discloses a low-floor light-rail vehicle traction motor bearing cooling method, which is characterized in that: a multi-path wind cooling way is adopted; vent holes are reserved on a root part at a fan inlet of a motor; cold wind entering a fan is formed into a plurality of air flow branches by the vent holes on the root part at the fan inlet, and the air flow branches enter the back parts of fan blades, are directly blown to the end closure part of a bearing and then climbs over a stator frame along the lateral surface of the stator frame; and the plurality of braches may be formed, are distributed uniformly, and form cyclonic eddies on the back part of the fan after entering the back part of the fan to cool a device on the bearing part so as to more directly cool the motor bearing.

The invention aims to provide a steam turbine rotor cooling system which can cool the high-temperature rotor of the steam turbine, reduce steam leakage energy loss and also reduce temperature of a bearing and lubricating oil, meanwhile is high in automation degree of adjustment and control and can improve safe operation of the steam turbine. The specific technical scheme is as follows: a system for cooling a high-temperature steam turbine rotor by gland seal is characterized by comprising a gland sealing system composed of steam turbine gland seals, a pressure equalization box, a stop valve, a regulating valve, a self-operated pressure regulator and a plurality of pipelines, wherein the first pipeline is used for connecting any position, with the pressure of high than 0.135MP, in the steam turbine body to the pressure equalization box, a regulating device composed of the stop valve, the regulating valve and the self-operated pressure regulator are arranged on the first pipeline, and thereby keeping the pressure in the pressure equalization box within the range of 0.13-0.135MPa; the second pipeline is used for connecting the pressure equalization box to the second last gear cavities on the front and rear sides of the steam turbine gland seal to serve as the steam supply pipeline of the steam turbine gland seal.

The invention discloses a waste gas re-cooling system. According to the system, a waste gas re-cooler is additionally arranged in the original cooling system of an engine, so that a part of waste gasdischarged by the engine is cooled and then mixed with fresh air to enter the engine to reduce the temperature of the gas entering the engine to participate in combustion, the cooling system realizesheat exchange between cold air and hot air through air cooling so as to achieve the purpose of reducing the air inlet temperature of an air inlet manifold, the system can reduce the heat of a water cooling EGR cooler scattering into the water cooling system, the system is easy to arrange in a whole vehicle due to the fact that only the cooler is added and a large amount of space is not occupied, the cooling problem of high air inlet temperature of a gas engine and other high-detonation-pressure engines can be solved, and a high-horsepower diesel EGR route engine can also solve the cooling problem by referring to the system.

The invention relates to the technical field of surface treatment of amorphous alloys, in particular to a deburring method for an amorphous alloy. Electric energy stored in a capacitor is released through an electrode; the electric energy released by the electrode is used for heating burr positions of the amorphous alloy to a certain temperature within certain heating time to remove burrs; the amorphous alloy is prevented from undergoing a crystallization reaction based on a TTT (Isothermal Transformation) diagram. The heating time for the electrode to release electric energy is 1*10<-6> to 1*10<-3> seconds, so that the deburring method has the advantages of short production time and good deburring effect. Since an inert atmosphere of a certain pressure is blown towards the burr positions during deburring to fulfill the aim of cooling, so that the amorphous alloy can be prevented from undergoing an oxidation reaction and the crystallization reaction.

The invention discloses a water-cooled phase-change cooling method and device for a data center and a machine room. The water-cooled phase-change cooling device comprises an internal air-cooled heat absorption assembly, an external water-cooled heat dissipation assembly, a liquid inlet pipe and a steam exhaust pipe. The internal air-cooled heat absorption assembly is connected with the external water-cooled heat dissipation assembly through a steam exhaust pipe and a liquid inlet pipe, a liquid working medium of the internal air-cooled heat absorption assembly absorbs hot air in the data center and the machine room and then is evaporated into a steam working medium, and the steam working medium enters the external water-cooled heat dissipation assembly through the steam exhaust pipe; and the vapor-state working medium entering the external water-cooling heat dissipation assembly is condensed into a liquid-state working medium in the external water-cooling heat dissipation assembly, enters the internal air-cooling heat absorption assembly through the liquid inlet pipe under the action of gravity, and continuously exchanges heat with hot air flow in the data center and the machine room. The external water-cooling heat dissipation assembly and the internal air-cooling heat absorption assembly of the phase-change cooling device can be combined in a multi-group mode. The requirementfor the cold source quality is low, no energy loss exists in circulation, and the advantages of energy conservation and emission reduction can be better reflected.

The invention discloses an energy storage type power supply module, comprising a module frame and an energy storage unit arranged in the module frame and insulated from the module frame, wherein the energy storage unit is formed by connecting multiple energy storage subunits in series, and two adjacent energy storage subunits are isolated by end separators to form a cooling air channel; and the module frame is composed of a base plate and side plates, and an air inlet is arranged in the position, corresponding to each cooling air channel, of the base plate. As the energy storage unit of the energy storage type power supply module disclosed in the invention is formed by connecting multiple energy storage subunits in series, a cooling air channel is formed by two adjacent energy storage subunits in the manner of separating through end separators, and air inlets corresponding to the cooling air channels are arranged in the base plate of the module frame, cold air entering from the air inlets can play the role of effectively cooling the energy storage subunits, accordingly, the energy storage unit is enabled to be operated in the proper temperature range all the time, and furthermore, the service life of the energy storage unit is effectively guaranteed.

The invention discloses an artificial board hot-pressing conveying system. The artificial board hot-pressing conveying system comprises a conveying rack, wherein the conveying rack consists of three horizontal conveying drum sections; a scraping mechanism is connected between the first horizontal conveying drum section and the second horizontal conveying drum section; the second horizontal conveying drum section is connected with the third horizontal conveying drum section through a board turning and cooling mechanism; a scattering assembly is arranged at an arc end of the first horizontal conveying drum section; a stopping claw is arranged between the scattering assembly and the scraping mechanism and is hinged to a connecting rod of a cylinder; a transverse sliding table is arranged on arack of the scraping mechanism; a roller is arranged on the transverse sliding table; a support is arranged on a side of the transverse sliding table; a roller is arranged on the support; and brushesare uniformly distributed on the roller. The conveying system can rapidly sort and scatter unqualified bamboo-wood boards, the bamboo-wood boards are deburred and cooled so as to finish automated processing on the bamboo-wood boards, the production efficiency is high, working procedures are simple, potential safety hazards do not exist, and the labor intensity of operation is small.

The invention discloses a heading machine and a water-cooled cutting arm of the heading machine. The water-cooled cutting arm comprises a coupling barrel, a front bearing used for supporting a spindle in the coupling barrel, and a bearing gland which is connected to the end of the coupling barrel and is used for axially positioning the front bearing, wherein a side wall of the coupling barrel and a side wall of the bearing gland are provided with cooling water channels which are communicated with each other; and a water inlet and a water outlet are formed on the cooling water channel. The cooling water channel is formed in the coupling barrel, and a cooling temperature control member is not required to be arranged on the outer side of the coupling barrel, so that the structure of the cutting arm is simplified, and the problem that the cooling water easily leaks because the water jacket is required to be welded or mounted with the coupling barrel is solved.

The invention discloses a flame-proof motor with an efficient heat dissipation function, the flame-proof motor comprises a motor main body, a main shaft and a sealing device, a wire connector is arranged above the motor main body, a fixing device is arranged below the motor main body, a cooling device is arranged on one side of the motor main body, and the sealing device is arranged on the other side of the motor main body. The cooling device is composed of the cooling cover and the cooler, gas in the motor shell can be sucked into the cooler through the main shaft, the transmission shaft and the gear pump, cooling water in the cooling pipe circularly flows into the heat exchange pipe, and then the cooling purpose is achieved. According to the explosion-proof motor, energy generated by vibration of the explosion-proof motor can be converted into kinetic energy of the first fan blades through the conversion mechanism, a group of protective layers can be formed on the outer surface of the motor shell through the first fan blades and the ventilation pipe, and flammable and explosive gas or dust is prevented from entering the interior of the explosion-proof motor to cause secondary explosion when the explosion-proof motor is shut down due to explosion.

The invention relates to a cold trap device for gas chromatography of transformer insulating oil. The cold trap device comprises a cold trap shell, wherein the upper top surface of the shell is provided with an upper gas inlet / outlet nozzle, and the lower bottom surface of the shell is provided with a lower gas inlet / outlet nozzle; an external refrigeration pipe is wound outside the shell; the shell is internally provided with an internal refrigeration pipe; an upper perforated plate and a lower perforated plate are fixedly arranged in the cold trap shell; the part between the upper perforated plate and the lower perforated plate is filled with stationary phase; the cold trap shell is contained in semi-cylindrical grooves formed in the middles of a left metal heat conduction clamp block and a right metal heat conduction clamp block; the left metal heat conduction clamp block and the right metal heat conduction clamp block are respectively provided with a penetrating hole, and are fixed together by fixed bolts which passes through the penetrating holes; a left semiconductor refrigeration plate and a right semiconductor refrigeration plate which are stuck by silica gel paste are arranged on the outer sides of the left metal heat conduction clamp block and the right metal heat conduction clamp block respectively. After the cold trap device is used, internal refrigeration and external refrigeration are carried out at the same time, so that gas refrigeration is uniform and rapid; a heating structure is ingenious, so that gas can be completely trapped, and no residue is left during desorption.

A sound reducing box of a single-stage high-speed blower comprises a box body, a cooling air inlet hole, a cooling air outlet pipe and an axial-flow fan, wherein the inner sides of both the box body and the door leaves adopt sound reducing pore plates, while the outer sides of both the box body and the door leaves adopt galvanized plates; sound insulating materials are packed between the sound reducing pore plates and the galvanized plates. The sound reducing box covers the single-stage high-speed blower to achieve a sound reducing function; the cooling air inlet hole in one side of the box body and the axial-flow fan mounted on the cooling air outlet pipe at the top of the box body form a forced air cooling system so as to keep the circulation between the interior of the box body and the external air and achieve the purpose of cooling by the blower; with the door leaves on the box body, in case of blower failure, a maintenance worker can open the door leaves to maintain and debug the blower; the box body is assembled with a plurality of groups of unit modules, and assembly can be performed by unit modules of different specifications and different numbers according to the size of the blower, so that the transportation and mounting are facilitated.

The invention provides a flow field plate structure for increasing drainage performance of a fuel cell, wherein the flow field plate structure comprises a flow field plate, an upper support layer, a liquid absorbing material, a gas diffusion layer and a catalytic layer; the top of the flow field plate is provided with the upper support layer, and the edge of the bottom face of the upper support layer is connected with the edge of the top face of the flow field plate; the middle of the bottom face of the upper support layer is provided with a hollow-out layer; the bottom of the flow field plate is provided with the gas diffusion layer and the catalytic layer from top to bottom; the liquid absorbing material is arranged vertically, the lower part of the liquid absorbing material makes contact with the gas diffusion layer, and the upper part of the liquid absorbing material passes through the flow field plate and is connected with the upper support layer; the upper support layer and the flow field plate are respectively provided with dry gas inlets, reaction gas inlets and reaction gas outlets which communicate correspondingly, the upper support layer is provided with a dry gas outlet, and the dry gas inlets communicate with the liquid absorbing material. The flow field plate structure has the advantages that the flow field plate structure is provided with dry gas flow channels alone, dry gas is used for achieving transpiration of the liquid absorbing material, and flow of the dry gas of the fuel cell and flow of reaction gas of the fuel cell are not interfered with each other.

The invention discloses a damping follow rest for turning a slender axle. The damping follow rest comprises a lower support seat and an upper support seat, wherein the upper support seat is matched with the lower support seat, the upper support seat and the lower support seat form a cylindrical hollow cavity structure, the inside of the hollow cavity is sheathed with a fixing sleeve, the inside of the fixing sleeve is provided with a damping sleeve which is provided with an inner hollow structure, the damping sleeve is in taper fit with the fixing sleeve, one larger-diameter end of the damping sleeve is provided with a spring, the spring is fixedly arranged in the fixing sleeve by an end cap, and the spring acts on the large-diameter end surface of the damping sleeve through a gasket. The damping follow rest has the advantages that the vibration is basically eliminated, so the influence caused by the abrasion of the damping sleeve is eliminated; the abrasion speed of an inner hole of the damping sleeve can be reduced by coolant, so a purpose of reducing the abrasion of the damping sleeve is realized; the use specifications of the support seats are reduced, and the material usage amount and the processing amount of the fixing sleeve are reduced, so a purpose of saving energy is realized; the processing size and the shape tolerance of a workpiece are ensured, and the qualified rate is improved; and the processing cost is effectively reduced, and the production efficiency is improved.

The invention provides a novel constant temperature controllable film plating machine. The novel constant temperature controllable film plating machine comprises a vacuum furnace chamber and a workpiece table arranged in the vacuum furnace chamber. The vacuum furnace chamber is formed by combing a furnace top, a furnace bottom, an inner barrel with an outer barrel. An interlayer space is reservedbetween the inner barrel and the outer barrel. The layered space is internally provided with a plurality of alternately-arranged first vertical protrusion strips and second vertical protrusion stripsso that a circulation channel can be formed. A water inlet pipeline and a water outlet pipeline on the outer barrel are provided with flow control valves correspondingly. A thermocouple is fixed to the furnace top. The flow control valves and the thermocouple are connected with a controller. Structures of existing film plating machines capable of conducting cooling are optimized and improved, thenovel constant temperature controllable film plating machine is simple in structure, easy to manufacture and low in cost, by controlling flow of cooling water, the operation temperature of a vacuum chamber is controlled, the vacuum chamber of the film plating machine can continuously work in the certain constant temperature state, and the operation stability is good.

The invention provides a 3D printer. The 3D printer comprises a shell, an operation platform and a printing platform. Strip-shaped rubber cushions are fixed to the upper edges of the shell, the fixed portions where a back face plate is fixed to keels through screws are provided with round rubber cushions, and therefore the noise caused when a top cover, the back face plate and the shell are in contact and resonate in the work state can be lowered. The shell is of a three-layer structure, and the three layers sequentially comprise a protective shell, a resonance sound absorbing layer and a sound absorbing layer from outside to inside, and therefore noise of the printer can be further lowered. According to the 3D printer, cooling liquid is adopted to conduct cooling on a high-temperature sprayer, the cooling purpose is achieved, and the cooling effect is good; besides, in the cooling process, no noise is generated, and the printing effect cannot be influenced; and according to a cooling system, a circulating pipe which is vertically wound around the high-temperature sprayer are connected to a circulation pump at the bottom end of the printer through crawler belts of two drive motors which move in the X-axis direction and the Y-axis direction, the weight of a printer head is reduced, and the service life of the printing sprayer is prolonged.

The invention discloses an oral irrigator with a heating function. The oral irrigator comprises a water storage box, a first hole plug, a second hole plug and an oral irrigator main body, wherein a sterilization chamber, a cooling chamber and a heat preservation chamber are formed in the water storage box; the sterilization chamber is arranged at the left end of the cooling chamber; the first holeplug is arranged at the upper end of the water storage box; a door plate is arranged on the cooling chamber; the left end of the conveying pipe penetrates through the right end surface of the sterilization chamber; the second hole plug is arranged at the lower end surface of the water storage box; second heating plates are arranged on the front and rear end surfaces of the heat preservation chamber; a through hole is formed in the flange; grooves are formed in the inner side wall of the through hole; the oral irrigator main body is arranged in the through hole; a connecting pipe is arranged on the right side surface of the water storage box; and the lower end of the connecting pipe penetrates through the right side surface of the water storage box and the right side surface of the heat preservation chamber. According to the oral irrigator with the heating function, the second heating plates are arranged, and under the action of the second heating plates, the water is ensured to be ata moderate temperature all the time, so that the water temperature is prevented from being too low during oral irrigating.

The invention discloses wallpaper heating and drying equipment which comprises a bottom plate. A box is fixed to the top of the bottom plate. A take-up cylinder and two guide rollers are arranged at the top end of the bottom plate. The two guide rollers are located in the box. A wind guide cover is arranged on the side wall of one side, away from the take-up cylinder, of the box. The wind guide cover communicates with the interior of the box. The vertical section of the wind guide cover is in an isosceles trapezoidal shape. A drying mechanism and a flat pressing mechanism are arranged on the top of the box. The flat pressing mechanism is close to the take-up cylinder. A wind shielding mechanism is arranged in the box and located between the drying mechanism and the flat pressing mechanism.The drying mechanism comprises a heating box fixed to the top of the box and a fan. The equipment is simple in structure, reasonable in design, ingenious in conception and good in drying effect, thedrying mechanism can be utilized for carrying out preheating and cooling, energy waste can be avoided, the drying efficiency is improved, wallpaper can be pressed flatly, the wallpaper quality is ensured, practicality is high, and the equipment is suitable for popularization.

The invention discloses a water-cooling supporting base. The water-cooling supporting base comprises an installation bracket, a cooling piece, an outer shell set and a pipe groove set, wherein the installation bracket is provided with a base, a stand column is installed on the base, a rib plate is installed on a column body of the stand column, an upper fixed plate is installed at the top end of the stand column, the pipe groove set is installed on the rib plate, the cooling piece is installed on the upper fixed plate and is provided with a water inlet and a water outlet, a cooling plate is installed between the water inlet and the water outlet, a channel for water to flow through is formed in the cooling plate, a communication hole is formed in the cooling plate, the outer shell set is installed in the hole and is composed of an outer shell and an inner framework, a water cooling channel is formed between the outer shell and the inner framework, the outer shell set is hollow, a hole for an article to penetrate through is formed in the outer shell set, the hole for the article to penetrate through is communicated with the hole in the cooling plate, a water cooling channel is formed in the outer shell and is communicated with the channel for water to flow through in the cooling plate, the pipe groove set is provided with a groove, and the open end of the groove is installed on the installation bracket.

The invention relates to an LED drive power source with a cooling device. The LED drive power source with the cooling device comprises an LED drive power source body, a wire arrangement box, a drive unit, a base, a ceramic heat exchanger, a condenser, a cooling chamber, a compressor, an evaporator, a throttling valve, a water pipe and cooling fins. The LED drive power source body is arranged in the drive unit. The wire arrangement box is arranged on the left end face of the drive unit. The ceramic heat exchanger is arranged on the left side inside the base. The cooling chamber is arranged on the right end face of the base. The water pipe sequentially penetrates the cooling chamber and the base and extends out of the base. The part, inside the base, of the water pipe is provided with the cooling fins. The part, in the cooling chamber, of the water pipe penetrates the condenser. The evaporator and the compressor are both arranged in the cooling chamber. The condenser and the evaporator are connected with the compressor through a connection pipe. The condenser is connected with the evaporator through a guide pipe. The throttling valve is arranged on the guide pipe. The contact faces of the base and the drive unit are provided with heat conduction holes. By means of the design, the cooling purpose is achieved, the drive unit is cooled, and heat inside the drive unit is reduced.

The invention discloses a cooling roller for the transmission of printing paper. The cooling roller comprises a cooling roller body. A cooling cavity is formed in the axial position of the cooling roller body. A first end cover is arranged at one end of the cooling roller body. A second end cover is arranged at the other end of the cooling roller body. An insertion pipe is arranged on the inner side of the second end cover, and is inserted in the cooling cavity of the cooling roller body. An oil inlet is formed in one side wall at one end of the cooling roller body. An oil inlet pipe is arranged in the oil inlet. An oil feeding trough is formed in the oil inlet pipe axially, and is communicated with the cooling cavity. An oil outlet is formed in one side wall at the other end of the cooling roller body. An oil outlet column is arranged in the oil outlet. An oil discharging trough is formed in the oil outlet column, and is communicated with the cooling cavity. The temperature of the cooling roller body can be kept to be constant so as to achieve the cooling purpose, and the cooling roller plays a role in cooling during the transmission process of the printing paper conveniently.

The invention relates to a cooling device, in particular to a water flow alternation type cooling device for a cooling tower. The water flow alternation type cooling device for the cooling tower can recycle water. According to the technical scheme, the water flow alternation type cooling device for the cooling tower comprises a base, a supporting frame, a box body, a fan, filler, a rotating mechanism and a storage mechanism, the supporting frame is arranged at the top of the base, the box body is arranged at the top of the supporting frame, the filler is arranged in the middle of the inner wall of the box body, the fan is connected to the middle of the top of the box body, the rotating mechanism is arranged on the box body, and the storage mechanism is arranged between the box body and the rotating mechanism. Through cooperation of the rotating mechanism and the storage mechanism, water flow in a water storage tank is pumped into a first water tank, then the water flow drips onto the filler through a rotating spray head, in the way, the filler is wetted, and the draught fan operates.