72results about How to "Realize circulating cooling" patented technology

The invention relates to a cooling structure of a permanent magnet motor, in particular to a fully-sealed forced air ventilating cooling structure of the permanent magnet motor, which solves the problems of poor cooling property and limited application range of the existing permanent magnet motor. The fully-sealed forced air ventilating cooling structure of the permanent magnet motor comprises a machine base, a front end cap, a back end cap, a front bearing, a back bearing, a stator structure and a rotor structure; a radial air inlet hole, a third air ventilating gap, an axial air ventilating hole, a first air ventilating gap and a radial air outlet hole form a main cooling air path structure; an axial front air inlet hole, a second air ventilating gap and an axial front air outlet hole form a front auxiliary cooling air path structure; an axial back air inlet hole, a fourth air ventilating gap and an axial back air outlet hole form a back auxiliary cooling air path structure; front fan blades are fixedly arranged at the front end surface of a rotor iron core; back fan blades are fixedly arranged at the back end surface of the rotor iron core. The fully-sealed forced air ventilating cooling structure is suitable for the permanent magnet motor.

The invention relates to an oil cooling structure of the traction motor and the traction motor with the oil cooling structure provided by the embodiment of the invention, the cooling pipelines are spirally arranged in the axial directions of the driving end cover and the non-driving end cover respectively, and meanwhile, the cooling pipeline is arranged in the center of the axial direction of therotor hollow shaft; through holes are formed in the two ends of each cooling pipeline, the cooling pipelines are communicated in sequence, a temporary oil storage groove in the axial center of the non-driving end cover is communicated with the cooling pipelines of the non-driving end cover, and after cooling oil enters the cooling pipelines of the machine shell, the cooling oil circulates in the cooling pipelines respectively and flows out of the cooling pipelines under the action of centrifugal force of rotation of the rotor. Cooling oil is sprayed through the through holes to cool surrounding parts, and finally flows out of the oil outlet under the action of gravity to enter an external pipeline, so circulating cooling is realized. Therefore, each heat source structure in the traction motor can be fully cooled, the heat dissipation capability of each heat source structure is improved, and the highest hot spot temperature of the traction motor is reduced.

A copper-ring water-cooling type magnetic liquid sealing device belongs to the field of sealing of mechanical engineering and solves the problem that a conventional magnetic liquid sealing device has a short service life and is degraded in sealing property under the working conditions of large diameter, high rotating speed and high environment temperature. The sealing device comprises magnetic liquid sealing components, copper rings and the like. During cooling of the sealing device, a low-temperature coolant liquid is directly introduced into the copper rings, and the low-temperature copper rings can cool air among gaps to reduce the influence of external high-temperature environment on a magnetic liquid (18); pole teeth of the copper rings are mutually engaged with those at the left ends and the right ends of pole shoes and are fully contacted with those at the left ends and the right ends of the pole shoes with large contact areas, so that the pole shoes can be cooled quickly and efficiently, and accordingly the magnetic liquid (18) is cooled quickly and efficiently; according to the method, to cut grooves in the pole shoes and introduce the coolant liquid into the grooves are not needed, a magnetic loop is not affected, the pressure resistance of the sealing device can be enhanced, and the cooling efficiency is high; in addition, since a permanent magnet (8) is mutually contacted with the coolant liquid and the copper rings, the permanent magnet (8) can also be cooled quickly and efficiently to enhance the sealing property.

The invention provides a high-speed main shaft cooling device and belongs to the technical field of machinery. The problem that an existing main shaft cooling device is bad in cooling effect is solved. The high-speed main shaft cooling device comprises an inner barrel and an outer barrel which is sleeved on the outer side of the inner barrel. A cooling channel for Freon to flow through is formed between the outer side wall of the inner barrel and the inner side wall of the outer barrel. The cooling channel comprises an inlet and an outlet. A semiconductor cooling piece is arranged between the inner barrel and the outer barrel. A cold face of the semiconductor cooling piece is attached with the outer wall of the inner barrel. A hot face of the semiconductor cooling piece is placed in the cooling channel. The high-speed main shaft cooling device has the advantages that cooling effect is good, so that a high-speed main shaft is long in service life.

The invention relates to permanent magnet motors, in particular to a fully enclosed self-ventilation permanent magnet motor. The fully enclosed self-ventilation permanent magnet motor provided by the invention solves the problems of poor cooling performance, limited application range, large dissipation, low efficiency, poor operation reliability, complex structure and large volume of the existing permanent magnet motors. The fully enclosed self-ventilation permanent magnet motor comprises an engine base, a front end cover, a rear end cover, a front bearing, a rear bearing, a stator structure and a rotor structure; an axial main air inlet hole, a main ventilation gap, an axial ventilation hole and an axial main air outlet hole constitute a main cooling air path structure together; an axial auxiliary air inlet hole, an auxiliary ventilation gap and an axial auxiliary air outlet hole constitute an auxiliary cooling air path structure together; and the rotor structure further comprises a front rotor pressure ring, a rear rotor pressure ring, a round nut, a front permanent magnet baffle, a rear permanent magnet baffle, a front permanent magnet baffle pressure ring, a rear permanent magnet baffle pressure ring, a front balancing block and a rear balancing block. The fully enclosed self-ventilation permanent magnet motor provided by the invention is suitable for various fields.

The invention relates to a compact lubricant cooler. It includes the oil room, water room which the side is welded with the in / out oil mouth and in / out mouth. The character is in that: it also includes the cooler body which is welded by many layers of water channel and oil channel and welded with the cooler main body. The invention is used to cool the lubricant in gear-box and engine which has the separately water and oil channel. The structure is compact and the process is simple.

The invention relates to a permanent magnetism motor and concretely relates to a permanent magnetism traction motor for subway. The problems of poor cooling performance, a limited range of application, poor operational reliability, a complex structure and a large column of a present permanent magnetism motor are solved. The permanent magnetism traction motor for subway comprises a front end cover, a back end cover, a front bearing, a back bearing, a front bearing cover, a back outer bearing cover, a stator structure, and a rotor structure. The rotor structure comprises a rotation shaft, a rotor iron core, a front rotor clamping ring, a back rotor clamping ring, a circular nut, a front permanent magnet baffle plate, a back permanent magnet baffle plate, a front permanent magnet baffle plate clamping ring, and a back permanent magnet baffle plate clamping ring. A main cooling air path structure is formed by an axial direction air inlet, an axial direction air vent, an axial direction exhaust vent. An auxiliary cooling air path structure is formed by a ventilation chamber. A leading-out wire, horizontal heat radiating ribs are a rotary transformer are also comprised. The invention is suitable for a subway driving system.

The invention, which belongs to the technical field of the motor, provides a motor comprising a case, a main shaft, end covers, a bearing seat, moving parts, a bearing and control parts. The moving parts include a permanent-magnet rotor and a stator winding. The control parts include a rotating transformer and a junction box. A main shaft is arranged in the hollow space of the case coaxially. The moving parts are arranged between the case and the main shaft. The end covers are arranged at the two ends of the case; an oil supply hole is formed in the front end cover and is communicated with a channel, thereby realizing effects of lubrication and cooling. A framework oil seal is arranged between the main shaft and the bearing seat so as to realize a better sealing effect. Oil control rings are arranged between the main shaft and the bearing seat and between the main shaft and the front end cover; light surfaces of the oil control rings correspond to oil storage grooves; second oil outlets are formed in the oil storage grooves; and thus a cooling effect is realized. Third oil outlets are formed in the stator winding, so that a liquid discharging effect is good. Besides, a tail-end inclined oil channel is arranged on the rear cover, so that safety oil discharging is realized and the security is high. And with the rotating transformer, angle and position sensing and measuring are realized and the operation becomes stable.

The utility model relates to a pole piece back groove type circulating cooling magnetic liquid sealing device, which belongs to the field of mechanical engineering sealing. The problems of short service life and reduced sealing performance of the existing magnetic liquid sealing device under the conditions of large diameter, high rotational speed and high ambient temperature are solved. In the device, the outer surface of the pole shoe is provided with back grooves for circulating cooling liquid, which are alternately arranged with the back teeth, which can increase the contact area between the pole shoe and the cooling liquid and improve the cooling efficiency; the back teeth are opposite to the pole teeth, and the back grooves and The tooth slots are opposite to each other, which does not affect the formation of the magnetic circuit and ensures the pressure resistance of the sealing device; the radial distance d between the back slot and the tooth slot is 0.5-1mm, and the cooling efficiency is high; It is opposite to the back slot on the pole piece; the round holes are distributed diagonally in the rectangular slot on the surface of the magnetic guide sleeve, and the number is equal to the number of the back slot on the pole piece. This design does not affect the formation of the magnetic circuit, and can ensure that every There is fluid coolant in each pole shoe back groove, and the cooling efficiency is high.

The invention discloses a stirring device, which comprises a lifting motor, a lifting upright post, a beam, a rotation motor, a stirring shaft, a spiral blade, a stirring disc and a stirring tank, wherein the lifting motor is connected with the lifting upright post, the lower end of the lifting upright post is installed on a fixed base, the upper end of the lifting upright post is fixed on the beam, one end of the beam is vertically provided with the stirring shaft, the stirring shaft is connected with the rotation motor, the spiral blade is arranged below the stirring shaft, the stirring disc is arranged at the bottom end of the stirring shaft and comprises a round disc body, stirring blocks are arranged at the periphery of the round disc body, stirring sheets are arranged at the upper part and the lower part of each stirring block, the spiral blade and the stirring disc are arranged in the stirring tank, an outer jacket is arranged at the outer side of the stirring tank in a sleeving manner, a spiral tube is arranged in the outer jacket, a water inlet is formed in the bottom end of the spiral tube and a water outlet is formed in the top end of the spiral tube. The stirring device has high stirring efficiency, ensures that the internal temperature of the stirring tank is not increased after long-time working, and guarantees the quality of a rubber seals.

The invention relates to a water-cooling cabinet for a server. The water-cooling cabinet comprises a cabinet body, a server and a cooling system, wherein the server and the cooling system are arrangedin the cabinet body, the cooling system comprises a water storage pool, a first transmission pump, a cooling pipeline, a cooling chamber and a semiconductor refrigerating sheet, the water storage pool is fixedly arranged at the bottom of the cabinet body, a first water inlet of the water storage pool is connected with a water source by a first valve, a water outlet of the water storage pool is connected with a water inlet of the cooling pipeline by the first transmission pump, the cooling pipe is arranged at an outer side of the server, a water outlet of the cooling pipeline is connected witha water inlet of the cooling chamber, a semiconductor refrigerating sheet installation hole is formed in a side wall of the cooling chamber, a heat absorption surface of the semiconductor refrigerating sheet faces the interior of the cooling chamber, a heat dissipation surface of the semiconductor refrigerating sheet faces the exterior of the cooling chamber, the cooling chamber is arranged abovethe water storage pool, and a water outlet of the cooling chamber communicates with a second water inlet of the water storage pool.

The invention discloses an electric vehicle controller water cooling device which comprises a first concentric-square-shaped frame. A concentric-square-shaped heat dissipation frame is fixedly installed on the inner side of the first concentric-square-shaped frame, heat dissipation through grooves are formed in the top end and the lower end of the concentric-square-shaped heat dissipation frame in a penetrating mode, and a controller body is detachably arranged in an inner cavity of the concentric-square-shaped heat dissipation frame. A water cooling mechanism is arranged at the lower end of the inner side of the first concentric-square-shaped frame. Under the driving of a water pump, in cooperation with the use of a water tank, a liquid inlet pipe, a liquid outlet pipe, a liquid distribution pipe, a snake-shaped bent pipe, a liquid collecting pipe and a backflow pipe, water circulation cooling is achieved, and therefore the cooling effect of the controller body is improved; under the driving of the motor, in cooperation with the use of the rotating disc, the driving column and the second concentric-square-shaped frame, circulating reciprocating motion of the cooling fan is realized, so that air flow at the heat dissipation through grooves in the upper end of the concentric-square-shaped heat dissipation frame can be uniformly driven to flow, heat at the heat dissipation through grooves is taken away by the air flow, and the heat dissipation efficiency is further improved.

The invention discloses a high-temperature sensing type circulating water-cooled transformer, and belongs to the technical field of transformers, preliminary contact type cooling treatment is realized by arranging water cooling boxes loaded with water cooling liquid on the left side and the right side of a transformer body, a plurality of water cooling bodies are distributed on the joint surfaces of the water cooling boxes and the transformer body, and cooling liquid is stored in the water cooling bodies; the water cooling bodies are communicated with the interior of the transformer body through the vent holes, the heat transfer effect is further improved, after the temperature in the transformer body rises, a temperature sensing deformation trigger located in a heat conduction ball senses the high temperature to enable a sealing bag to block the vent holes, and a micro circulating pump and a semiconductor chilling plate are triggered and started so cooling liquid in the water cooling bodies flows circularly and meanwhile, the semiconductor chilling plate is used for cooling the water cooling liquid, the cooling liquid transmits heat in the transformer body to the water cooling box for cooling, and the circulation is carried out, so that automatic circulating flow after high-temperature sensing is effectively realized, and high-efficiency cooling is carried out.

The invention provides an oil-cooled high-voltage brushless direct-current motor for an aviation fuel system. The oil-cooled high-voltage brushless direct-current motor comprises a Hall sensor assembly for backup starting, a composite shaft with a pressurization cooling function, a stator assembly, a rotor assembly, a shaft extension end cover assembly, a machine shell, a non-shaft extension end cover assembly with a flange function and a pressurization impeller. Fuel oil in the motor is divided into two oil paths, wherein the first oil path is the fuel oil inlet of the machine shell, the airgap shaft surfaces of the stator assembly and the rotor assembly and the gap between the composite shaft and the shaft extension end cover assembly and finally reaches the supercharging impeller, andthe second oil path is the fuel oil inlet of the machine shell, the oil inlet of the non-shaft extension end cover assembly, the oil inlet, the inner hole and the oil outlet of the composite shaft andfinally reaches the supercharging impeller. The motor has the advantages of being small in size, light in weight, long in service life, good in heat dissipation and cooling effect and high in workingefficiency.

The invention discloses a two-phase immersion type liquid cooling device. The two-phase immersion type liquid cooling device comprises a refrigerating tank, a heating element and a condenser, whereinthe refrigerating tank is used for containing a refrigerant, the heating element is immersed in the refrigerant, and the condenser is fixedly arranged on the inner side of the refrigerating tank; a liquid phase area is arranged at the lower part of the refrigerating tank, a gas phase area is arranged at the upper part of the refrigerating tank, the gas phase area is in communication with an inletof the condenser, and an outlet of the condenser is in communication with the liquid phase area; and an outer cooling system is further arranged outside the condenser, the outer cooling system is further connected with a water supply pipeline and a water return pipeline, and heat exchange is carried out on the condenser through the water supply pipeline and the water return pipeline in the outer cooling system. According to the device, by means of the mode, the heating element is immersed in the refrigerant, a coolant phase change principle is utilized to realize the circulation cooling of theheating element, the capacity of a heat exchange system is high, and the temperature uniformity and the allowable maximum heat flux density of the heating element can be effectively improved.

The invention discloses a multistage circulation cooling device used for plywood. The multistage circulation cooling device comprises a conveying table, a cooling box, a storage box and a base. A conveying plate is arranged on the surface of the conveying table, and a transfer plate is arranged at the bottom end of the conveying plate. A driving shaft is arranged inside the conveying table. The transfer plate is driven by the driving shaft to conduct conveyance. Mounting bases are arranged at the two ends of the cooling box, and the cooling box and the two sides of the conveying table are fixedly mounted together through the corresponding mounting bases. A cooling device body is arranged inside the cooling box. A rubber protective pad is arranged inside the storage box. A connecting plate is arranged at one end of the storage box. The two sides of the other end of the connecting plate are connected with connecting frames, and the other ends of the connecting frames are connected with the conveying table together. The connecting frames are fixed to the two sides of the transfer plate correspondingly. According to the multistage circulation cooling device, multistage circulation cooling of the plywood can be achieved through uninterrupted cooling of a plurality of cooling pipes; and cooling is even, the cooling effect is good, forming quality of the plywood is improved, production can be facilitated, and the multistage circulation cooling device is worthy of popularization.

The invention relates to the field of lamps, in particular to a solar street lamp. The solar street lamp comprises a lamp rod, a light source, a storage battery, a main controller and a solar panel; the light source is mounted on the top of the lamp rod; the main controller controls the solar panel to supply power to the storage battery and controls the storage battery to supply power to the light source correspondingly; the solar panel is in a spherical shape and further comprises a lens panel which is in a spherical shape; the lens panel is located on the solar panel; the edge of the lens panel is fixedly connected with the edge of the solar panel; a plurality of lens holes are formed in the lens panel; a convex lens is mounted in each lens hole; and the distance between each convex lens and the solar panel is less than the focal length of the convex lens. According to the solar street lamp, by means of the condensing effect of the convex lenses, the lens panel and the solar panel are arranged in the spherical shape, so that vertical collecting is realized no matter which angle sunlight shines from, and the utilization ratio of sunlight is improved.

The invention relates to the technical field of extruding machines, in particular to an integrated cooling type tin bar extruding machine. The integrated cooling type tin bar extruding machine comprises an extruding machine body, and the extruding machine body comprises a working table plate, extruded materials, a processor and two electromagnetic valves, wherein a water receiving box is fixedly arranged on one side of the working table plate, a cooling box is arranged on one side of the water receiving box, and L-shaped connecting frames are fixedly arranged on the two sides, away from each other, of the cooling box correspondingly; one side of each L-shaped connecting frame is fixedly connected with one side of the water receiving box, a plurality of cooling holes are formed in one side of the cooling box, and cooling pipes are fixedly arranged on the inner sides of the cooling holes correspondingly. According to the integrated cooling type tin bar extruding machine, through the arrangement of the water receiving box, the cooling box, the cooling pipes, a water pump, a water tank, a cooling device, a cutting base, a tool apron, a hydraulic cylinder, a cutting tool, an L-shaped sliding frame, a touch switch, a spring, a U-shaped frame, a guide damping device, a U-shaped sliding frame and an automatic reset device, the integrated cooling type tin bar extruding machine has the functions of rapid cooling, circulating cooling, automatic slitting, length adjustment, continuous slitting and the like.

The invention provides an electromagnetic adjustable vibration damper, and belongs to the technical field of vibration dampers. The electromagnetic adjustable vibration damper comprises a cylinder body, a first piston device and a second piston device; the first piston device and the second piston device each comprises a piston head and a piston rod; one end of the cylinder body is provided with afirst through hole, and the other end of the cylinder body is provided with a second through hole; one end of the first piston device is internally provided with a first electromagnetic coil; one endof the second piston device is internally provided with a second electromagnetic coil, and the middle of the second piston device is sleeved with a spring; the interior of the first piston device andthe interior of the second piston device are both provided with adjusting systems for controlling the magnitude of currents of the first electromagnetic coil and the second electromagnetic coil; theadjusting systems are electrically connected with the first electromagnetic coil and the second electromagnetic coil; and vibration damper strength control is achieved, the elongation of the vibrationdamper is controllable, and the very good practicality is achieved.

The invention provides an integrated cooling system for fully mechanized mining faces. The integrated cooling system comprises a cooling liquid box for containing cooling liquid, a cooling pipeline, a cooling pump and a return pipeline. One end of the cooling pipeline extends into liquid in the cooling liquid box, the cooling pipeline is connected with the cooling pump, the other end of the cooling pipeline is connected to cooling liquid input ends of different to-be-cooled fully mechanized mining face devices, the cooling pump is used for pumping the cooling liquid into the cooling pipeline so as to cool the different to-be-cooled fully mechanized mining face devices, one end of the return pipeline is connected to cooling liquid outlet ends of the different to-be-cooled fully mechanized mining face devices, and the other end of the return pipeline is communicated with the cooling liquid box. According to the technical scheme, circulatory cooling is realized, water is saved, environment cleanness of mining faces is guaranteed, drainage of the mining faces is reduced, and purposes of saving energy, reducing emission and protecting the devices are achieved.

The invention discloses a machine heat dissipation system using natural water. The system comprises a first pipeline, a second pipeline, a third pipeline, a control unit, and a heat dissipation watertank of a to-be-dissipated machine; the heat dissipation water tank comprises a heat dissipation outlet and a heat dissipation inlet; the first pipeline comprises a first water pump and an ice water unit; the ice water unit is provided with a connected first water inlet and a first water outlet and a connected second water outlet and a second water inlet; the heat dissipation outlet is sequentially connected with the first water pump, the first water inlet, the first water outlet and the heat dissipation outlet; the second pipeline comprises the ice water unit, a cooling tower and a second water pump; the second water outlet is sequentially connected with the cooling water tower, the second water pump and the second water inlet; the third pipeline comprises the cooling water tower and a third water pump; the heat dissipation outlet is sequentially connected with the cooling water tower, the third water pump and the heat dissipation inlet; and the control unit controls the on and off ofthe first pipeline, the second pipeline and the third pipeline. According to the system, two modes of water cooling and heat dissipation for a machine can be realized, the heat dissipation energy consumption is effectively reduced.

The invention provides a water pump cooling device for a thermal power plant. According to the water pump cooling device for the thermal power plant, cooling water is injected into the pump sleeve, acooling water circulation system is formed by the pump sleeve, a water outlet pipe, a water inlet pipe, a driving box, a heat dissipation box and a heat dissipation water pipe, a driving motor drivesa driving wheel to rotate, and then the meshing effect of first teeth and second teeth is utilized, so that the cooling water sequentially passes through the water outlet pipe, the driving box, the heat dissipation box, the heat dissipation water pipe and the water inlet pipe from the pump sleeve and flows back into the pump sleeve, and cooling water circulation is completed; and in addition, thedriving motor drives a heat dissipation fan to rotate to achieve air cooling and heat dissipation of the water pump. The device can cool the water pump for the thermal power plant, and has the characteristics of long-distance heat dissipation, small cooling water flow, convenience in keeping the temperature of the water pump, easiness in disassembly and assembly and easiness in transportation.

The invention belongs to the field of hypersonic wind tunnel test equipment, and discloses a cooling water distribution device for a high-Mach-number spray pipe of a conventional hypersonic wind tunnel. The distribution device adopts a set of high-pressure cooling water supply system, realizes the distribution of cooling water pressure and flow through the inlet water distributor and the inlet water flow adjusting throat, not only meets the requirements of cooling water in the nozzle throat section water channel on medium-high pressure and high flow speed, but also meets the requirements of cooling water in the nozzle diffusion section water channel on low pressure, low flow speed and high flow speed. And the requirement that cooling water flows in the interlayer is met. The distribution device meets different requirements of high-pressure cooling of a throat section and low-pressure cooling of a diffusion section of a high-Mach-number spray pipe of a conventional hypersonic wind tunnel, the complexity of a cooling water supply system of the high-Mach-number spray pipe is simplified, the simplicity and convenience of operation and maintenance are improved, and the development cost is reduced. And the device can be popularized and applied to equipment needing cooling of different pressure grades at similar different positions.

The invention discloses a high-precision straightening machine for steel pipe machining, and belongs to the technical field of steel pipe straightening. The high-precision straightening machine comprises a machine shell. A supporting plate is arranged inside the machine shell. A plurality of slave straightening wheels are arranged at the lower surface of the supporting plate. The upper surface ofthe supporting plate is movably connected with the bottom ends of two connecting rods through two pin shafts. The top ends of the connecting rods are movably connected with the lower surface of a threaded cap through pin shafts. The threaded cap is in threaded connection with the outer surface of a threaded rod. According to the high-precision straightening machine for steel pipe machining, by arranging a water collection box, a circulation cooling pump, an atomization spray pipe, the slave straightening wheels and the machine shell, the circulation cooling pump works, heat exchange treatmentis performed on water, water is cooled to a certain degree, the cooling effect is not likely to be affected by water temperature, and the purpose of circular cooling is achieved, the straightening machine is not likely to deform a main straightening wheel and the slave straightening wheels when working for a long time, the steel pipe straightening precision is improved, and the service life of themain straightening wheel and the slave straightening wheels are further ensured.

The invention discloses an outer loop fast cooling device for feed production. The outer loop fast cooling device comprises a cooler bin and a plurality of landing legs which are arranged on the lowerend face of the cooler bin and are distributed in array. A support block is arranged at the lower end of each landing legs. A feed pipe used for feed in materials is formed in the left upper side ofthe cooler bin. A discharge assembly is formed in the bottom of the cooler bin. A first cooling component and a second cooling component which are used for cooling the materials are arranged on the cooler bin. The first cooling component comprises a lifting tube which penetrates through the top of the cooling bin. The lower end of the lifting tube extends to the inner bottom of the cooling bin. The outer loop fast cooling device for feed production is designed by aiming at the disadvantages of the prior devices. The circulating cooling of the materials is achieved, the ultimate cooling qualityof the materials is ensured, and the cooling effect is further improved using a combination of an air-cooling method and a water-cooling method. Open-type cooling is adopted in the air-cooling, in addition, a subuliform structure is matched up to assist to disperse the materials, and the cooling effect is further improved.

The invention discloses a circulating cooling device for rice processing. The circulating cooling device comprises a cooling box and a storage box, a negative pressure pipe is sleeved between one side of the cooling box and one side of the storage box, a fixed cylinder is mounted on the inner wall of the end, away from the negative pressure pipe, of the cooling box, a rotating shaft is sleeved with the fixed cylinder, a motor is mounted on a top plate of the fixed cylinder, an output shaft of the motor is connected with the rotating shaft, and a spiral auger is mounted on the rotating shaft. The top of the side wall of the fixed cylinder is connected with a guide plate, the top of the cooling box is sleeved with a feeding plate, a top plate of the storage box is provided with an exhaust fan, and a bottom plate of the storage box is provided with a discharging mechanism. Rice falls onto the guide plate through the feeding plate and is evenly scattered into the cooling box, the exhaust fan exhausts air, the negative pressure pipe exhausts air into the cooling box to form airflow, the rice is air-cooled, small broken rice is sucked into the storage box through negative pressure of the negative pressure pipe, and intact rice falls onto the bottom of the cooling box and is spirally conveyed to the guide plate again through the spiral auger, so that circulating cooling is realized.

The invention discloses a permanent magnet motor, which comprises a casing, a stator, a rotor, a front end cover, a rear end cover, a bearing end cover, cooling fins, and a condenser; the stator and the rotor are installed inside the casing, and the front end of the casing The front end cover and the rear end cover are respectively installed at the front end and the rear end cover, the bearing is installed in the front end cover and the rear end cover, the bearing end cover is installed outside the bearing, the cooling fin is installed inside the stator and the shell, and the cooling fin is connected with the external condenser. An oil seal groove is arranged between the bearing end cover, the front end cover and the rear end cover. In the permanent magnet motor of the present invention, cooling fins are installed on the stator and the housing, and the cooling fins are connected to the condenser to realize the circulation cooling of the motor. Through the oil seal groove between the front end cover, the rear end cover and the bearing end cover, The dustproof effect has been improved.

The invention, which belongs to the technical field of the motor, provides a motor comprising a case, a main shaft, end covers, a bearing seat, moving parts, a bearing and control parts. The moving parts include a permanent-magnet rotor and a stator winding. The control parts include a rotating transformer and a junction box. A main shaft is arranged in the hollow space of the case coaxially. The moving parts are arranged between the case and the main shaft. The end covers are arranged at the two ends of the case; an oil supply hole is formed in the front end cover and is communicated with a channel, thereby realizing effects of lubrication and cooling. A framework oil seal is arranged between the main shaft and the bearing seat so as to realize a better sealing effect. Oil control rings are arranged between the main shaft and the bearing seat and between the main shaft and the front end cover; light surfaces of the oil control rings correspond to oil storage grooves; second oil outlets are formed in the oil storage grooves; and thus a cooling effect is realized. Third oil outlets are formed in the stator winding, so that a liquid discharging effect is good. Besides, a tail-end inclined oil channel is arranged on the rear cover, so that safety oil discharging is realized and the security is high. And with the rotating transformer, angle and position sensing and measuring are realized and the operation becomes stable.

The invention relates to the technical field of mercury vapor cooling, and particularly relates to a device for cooling mercury vapor through water circulation. By improvement of the structure of the cooling device, the device comprises a tank, a cooling tower arranged on the tank, an inlet formed in the side surface of the tank and an outlet formed at the side surface opposite to the inlet and at the skew diagonal position of the inlet, and further causes the water circulation cooling of the mercury vapor to be realized, the contact time of water and the vapor to be relatively long and a heat exchange degree to be relatively high; and through reasonable design of the device, a vapor circulation pipe is arranged in a cooling water pipeline in a sleeving manner, the probability of leaking the mercury vapor to environments and polluting and corroding the outer wall of the cooling tower by the mercury vapor is relatively low, the emission rate of the mercury vapor and the environment pollution rate are reduced, and the cooling effect of the mercury vapor is improved.

The invention discloses a water-cooled power combiner for a high-power solid state power amplifier. The water-cooled power combiner for a high-power solid state power amplifier comprises an inner conductor, a central conductor, a connecting conductor, a first outer conductor, a second outer conductor, a third outer conductor and an input port; the central conductor is arranged at one end of the inner conductor; the first outer conductor, the second outer conductor and the third outer conductor are arranged outside the inner conductor and the central conductor; and a first water channel and a second water channel are respectively arranged at the position near the central conductor inside the third outer conductor and the second outer conductor. According to the invention, the inner and outer double-layer structure is adopted by the water-cooled power combiner provided by the invention, and the water-cooling channel is arranged in the outer structure, therefore, the water-cooling heat dissipation of the multi-channel power combiner is realized, and the idea of water-cooling for the power combiner is realized. The water-cooled power combiner has the advantages of high heat dissipation efficiency, small space occupation, omitting external heat dissipation mechanism, convenient for maintenance and service, and can realize the circulating cooling of the power amplifier plug-in unit.