161results about How to "Solve Cooling Problems" patented technology

The invention discloses a 12-cylinder water cooling diesel engine. The engine comprises a crank connecting rod mechanism arranged on a fixed part, a gas distribution mechanism, a transmission mechanism, a cooling system, a lubricating system, a fuel supply system, an intake/exhaust system, an electric system and a starting mechanism. The water cooling engine widens the power range, increases the power from traditional 195-499 kW to 780 kW, preferably exerts the characteristics of high power, small size, compact structure and low fuel consumption of the series of diesel engines, adapts to the market demands, satisfies the use requirements of users, is better in market competitiveness, can be applied to such fields as engineering machinery and generator sets, and widens the application field of 132-series engines.

The invention provides a cooling system and a projecting apparatus adopting the same. The projecting apparatus comprises a shell and also comprises optical components, a lamp bulb assembly and a power supply component which are arranged in the shell. The cooling system comprises an air inlet, an air outlet, a dust preventing component, a cooling air channel, a lamp bulb component air-cooling unit, a power supply air-cooling unit and an exhauster; the air inlet and the air outlet are respectively arranged at two opposite narrower sides of the shell; the dust preventing component is arranged in the shell and clings to the air inlet; the cooling air channel clings to the dust preventing component and is internally provided with a plurality of fans and air guiding pipes which correspond to the fans, wherein the air guiding pipes lead to all the optical components; the lamp bulb component air-cooling unit and the power supply air-cooling unit collect the air-cooled exhausted air at the air outlet; and the exhauster is arranged in the shell and near to the air outlet and discharges the collected exhausted air out of the shell. When the dust is prevented, heating components in the projecting device are fully cooled, and local hot air accumulation is avoided.

The invention discloses a fully-closed horizontal oil-injection scroll compressor, which is an oil circulating system which can guarantee tightness of the compressor and lubrication of a bearing stress surface and the like and unifies lubrication of the bearing stress surface and oil-injection cooing of a compression cavity by a pressure difference at the same time. Under the action of the pressure difference, lubricating oil enters a central oil hole of a rotation shaft through an oil injection pipe, and then is supplied to the position to be lubricated through an oil hole, an oil guide channel inside a dynamic scroll, and other mechanisms, and finally falls back into an oil pool at the bottom of a shell under the action of the gravity after lubrication. Part of air inlet guide pipes with a porous structure are immersed into the oil pool at the bottom of the shell, and the lubricating oil enters the air inlet guide pipe through small holes, and is carried into the compression chamber, and the mixture of the lubricating oil and gas is discharged after the lubricating oil cools the compression chamber. After the mixture is subjected to gas-oil separation and the lubricating oil is cooled, the lubricating oil is injected into the central oil hole of the rotation shaft by the oil injection pipe for recycling. As the compression chamber is internally cooled by injecting oil on the premise of a fully-closed structure, the fully-closed horizontal oil-injection scroll compressor is particularly suitable for gases (such as natural gas, helium gas and the like) which have strict requirements on compression tightness and of which compression heat is high due to high isentropic indexes.

The invention discloses a centralized cooling system for a wind turbine generator system. The centralized cooling system comprises a generator, a water pump, a tee, a first radiator, a second radiator, an oil-water heat exchanger and a gearbox, wherein the tee is connected with the water pump, the first radiator and the second radiator respectively; the first radiator, the generator and the water pump are communicated in turn; the second radiator, the oil-water heat exchanger and the water pump are communicated in turn; and the oil-water heat exchanger is connected with the gearbox. The centralized cooling system integrates the generator and a gearbox water cooling system to eliminate the redundancy of the system. Meanwhile, two electric temperature control valves are adopted in the system, and the flow rates of refrigerating media of the generator and the gearbox water cooling system can be respectively adjusted by automatically adjusting the opening of the temperature control valves according to water inlet temperature of the generator and the gearbox, so that temperature rise of the generator and the gearbox can be simultaneously controlled.

The invention discloses a data center liquid cooling and air cooling combined cooling device comprising a liquid cooling mechanism and an air-liquid heat exchanger; the liquid cooling mechanism is arranged in computer equipment, and connected with high heating components in the computer equipment; one side of the computer equipment is provided with an air inlet; the air-liquid heat exchanger used for cooling the air entering the computer equipment is arranged outside the computer equipment; the liquid cooling mechanism and the air-liquid heat exchanger are connected in series or parallel through a liquid cycle pipeline; liquid cycle can cool down the high heating components in the computer equipment; the air-liquid heat exchanger arranged outside the computer equipment can cool down the air entering the computer equipment, thus taking away heats of low heating components (like a hard disc, or a north-south bridge chip), so one liquid cycle system can use the liquid cooling-air cooling combined mode to take away the heating of the whole computer equipment.

The invention relates to an adjustable integral ultrahigh power coherent oxygen lance nozzle for converter steel making, which comprises a nozzle, the nozzle comprises a cooling system and an injecting oxygen system which is arranged inside the cooling system and comprises an inner nozzle and a plurality of accessory holes, wherein, an inner nozzle is movably connected with the central position of the nozzle and the accessory holes are evenly arranged around the inner nozzle, which can ensure that the streams injected by the inner nozzle do not decay too soon, thus forming a strong air column attacking steel liquid level; and a flow field of molten metal with convection from the periphery to the inside forms according to the property of liquid flow field and the structure of furnace type, thus leading to the full reaction of oxygen and the impurities in steel liquid. The oxygen lance nozzle can directly match with the current oxygen lance only by replacing the nozzle. By testing, the oxygen lance nozzle can improve the oxygen utilization rate by 20 percent and reduces steelmaking cost. As the lance position is high, the phenomena of splashing, lance-sticking, slag mound and the like, do not easily appear during the steel making process, and the life of the oxygen lance can be improved by three to five times.

The invention discloses an automotive heating system and radiating system using fuel heaters and using methods thereof and belongs to the field of automotive integral heating systems and engine cooling systems. The automotive integral heating system comprises a compensating tank, an electric control three-way stop valve, a circulation pump, an air-conditioner heat exchanger, an automotive head heat exchanger, an automotive engine and a fuel heater. The engine cooling system comprises a compensating tank, an electric control three-way stop valve, an electric control two-way stop valve, a circulation pump, a chassis heat exchanger, an automotive head heat exchanger, an automotive engine and a fuel heater. In winter, the automotive integral heating system can preheat the engine and increase in-car temperature fast, reduce emission of exhaust gas generated when the engine is in an idle state, and improve the comfort level of passengers. In summer, due to the arrangement of the engine cooling system, the cooling speed of the automotive engine is increased.

The invention provides a combined cooling type rectification support plate flame stabilizer. According to the combined cooling type rectification support plate flame stabilizer, design of impacting and cooling array size and distribution, design of air film cooling hole size and distribution, design of oil spraying hole size and distribution and design of oil passages in the rectification support plate flame stabilizer and a jetting form are involved. According to the combined cooling type rectification support plate flame stabilizer, a cool air cavity is formed in an ordinary rectification support plate flame stabilizer, and through arrangement of an impacting array and air film cooling holes, the wall temperature of the rectification support plate flame stabilizer is controlled; and an oil spray pipe is subjected to cooling protection to a certain extent, coking blocking caused due to overheating of the oil spray pipe is avoided, the work reliability of the rectification support plate flame stabilizer is improved, and the service life of the rectification support plate flame stabilizer is prolonged.

The invention relates to a water-cooled plate. A heating element is fixedly installed through a threaded hole for installing the heating element on the working plate to ensure good thermal contact. The circulating liquid cooling medium enters the water-cooled plate from the inlet of the water-cooled plate. The flow channel in the plate is formed by the opening of the middle partition plate, which is generally in the shape of a baffle. There are cooling fins in the flow channel, and the partition plate and cooling fins are welded to the upper and lower plates. , the heat is transferred to the circulating cooling liquid medium through the cooling fins, and after sufficient heat exchange, the cooling medium flows out from the outlet of the water-cooled plate, taking away the waste heat generated by the heating element. The water-cooled plate of the present invention has the advantages of simple structure, easy processing and production, low cost, convenient installation, high cooling efficiency, etc., and can effectively solve the problem of cooling the heating element under high power density, thereby getting rid of the low efficiency of traditional coolers and high-efficiency coolers The structure is complex and the cost is high.

The invention relates to a rotor self-circulation cooling system and cooling method for a high-speed motor direct-drive turbomachinery. A motor rotor is arranged in the middle of the interior of a shell; a bearing pedestal and a bearing are mounted between the two sides of the motor rotor and the inner wall of the shell; a stator coil is arranged on the periphery of the motor stator; a motor inner cavity is formed in the internal space of the shell; a first-stage compressor is arranged at one end of the shell while a second-stage compressor is arranged at the other end of the shell; a rotor inner cavity cooling air inlet pipe and an air outlet pipe are arranged on the shell separately; and the air inlet pipe is connected with a compressor second-stage cooler while the air outlet pipe is connected with a compressor first-stage cooler. A little cooling gas enters the motor inner cavity from the second-stage cooler to take away heat of the motor rotor, and then enters the first-stage cooler to be cooled and to be compressed through the second-stage compressor, and then enters the second-stage cooler to be cooled and then enters the motor inner cavity so as to complete the self-circulation process of a little motor rotor cooling gas. By virtue of the rotor self-circulation cooling system and cooling method, the heat exchange efficiency can be improved; the comprehensive energy consumption is low; and parts of an external air source, a cooling fan and the like are not required in the cooling process.

The invention discloses an intelligent coal mine local ventilation system which comprises a mining flame-proof type two-circuit feeder switch, two passageway type anti-explosion frequency converters and two local ventilation machines. The mining flame-proof type two-circuit feeder switch is connected with an information collecting module under a coal mine, supplies power for the two anti-explosion frequency converters respectively and controls the two anti-explosion frequency converters to work. The two anti-explosion frequency converters are connected with the two local ventilation machines respectively, and air flow automatic switching devices are further arranged at air outlets of the two local ventilation machines. Under the control of the mining flame-proof type intelligent two-circuit feeder switch, rotation speed of a fan is automatically adjusted, air is supplied according to needs, gas is intelligently exhausted, energy is saved, consumption is reduced, disasters are prevented, and safety and reliability of the local ventilation system are improved.

The invention discloses a shafting-free outer rotor permanent-magnet synchronous motor with a stator water-cooling structure, belongs to the field of motors and aims to solve the problems that structures of most of technical schemes for cooling motors are complicated, manufacturing costs of the motors are increased, and a motor stator can not be effectively cooled. The shafting-free outer rotor permanent-magnet synchronous motor comprises a rotor and a stator, the rotor is arranged outside the stator, an air gap is reserved between the rotor and the stator, the rotor comprises rotor magnetic steel and a plurality of permanent magnets, the plurality of permanent magnets are uniformly distributed along the inner circumference surface of the rotor magnetic steel, the stator comprises a stator core and stator windings, a plurality of stator slots are uniformly arranged in the stator core along the peripheral direction, the stator windings are embedded into the stator slots, the stator further comprises a stator casing, the stator casing is arranged on the inner circle surface of the stator core, an S-shaped cold water diversion trench, a water inlet pipeline and a water outlet pipeline are mounted in the stator casing, and the water inlet pipeline and the water outlet pipeline extend out of an end face of the stator casing and are communicated with the cold water diversion trench.

The present invention relates to a multi-functional mechanical sealing shaft sleeve. A totally enclosed rotating porous internal cooling flow channel which is processed in the shaft sleeve is integrated with a vane wheel and communicated with the negative pressure area of a pump and the internal joint between a mechanical sealing moving ring and a mechanical sealing static ring. When the pump operates, working medium flows from the internal joint between the mechanical sealing moving ring and the mechanical sealing static ring to the negative pressure area of the pump for cooling, bringing away impurities in the sealing inner circle and effectively preventing the medium from leaking out at the same time. Thereby, the multi-functional mechanical sealing shaft sleeve not only resolves the problem of the cooling problem of an external mounted mechanical pump seal but also prevents the toxic medium in the pump and flammable and explosive gas from leaking out, and moreover, an external cooling device is not needed.

The invention provides a heat-pipe module heat dissipation oil bath electromotor. The electromotor is characterized in that a shell end plate which is not passed by a motor shaft is an orifice plate, a heat pipe is arranged in each through hole, and the middle of each heat pipe is fixed by a connecting piece and sealed on an end plate; heat transmission working substance is arranged in the heat pipe, the heat absorption section of the heat pipe is positioned in the shell, the heat dissipation section is positioned outside of the shell, the shell end plate provided with the heat pipe is provided with a fan; the heat dissipation sections of the heat pipes are externally provided with a protective cover which holds the heat pipes, and a fin, a gill and a spiral piece; and a heat transmission module is fixed on an electromotor shell so as to rapidly emit heat, the normal operation of the electromotor is guaranteed, and particularly a cooling problem of a high power motor is solved.

The invention discloses a closed water cooling system with a double-evaporative cooling pressure, which provides the closed water cooling system used in an air-cooled thermal power set. The closed water cooling system comprises a direct-current evaporating and cooling closed water chiller A, a direct-current evaporating and cooling closed water chiller B, a vacuum butterfly valve, a vapor injector A, a vapor injector B, five sections of steam extracting and entering regulating valve, a plant steam aiding and entering regulating valve, a NO. 8 low pressure heater, a condenser, a liquid level sensor and a DCS (distributed control system); pipe sides of the two direct-current evaporating and cooling closed water chillers A and B are connected in series; and an evaporating and cooling pressure at a casing side of B is lower than that of A, thus the problem that output power of a turbo generator set is limited by an overhigh temperature of closed water is solved, cooling conditions of a host machine and an auxiliary machine are improved, heat output by hot closed water is recycled as much as possible, and power consumption of the closed water system is lowered. By the adoption of the closed water cooling system, no wet-type mechanical ventilated cooling tower is needed for open circulated water cooling, the occupation area of the cooling tower is reduced, the investment on capital construction is reduced, the electricity consumption is decreased, and the water consumption is zero.

The invention discloses a cooling method and a cooling device of an end pump laser. The end pump laser comprises a laser cavity and a laser crystal bar located in the laser cavity, a pumping mode of an end pump is adopted, and pumping lasers are focused inside the laser crystal bar. According to the cooling method of the end pump laser, a plurality of spraying devices are arranged on a cavity wall of the laser cavity, the spraying devices spray water mist to the laser crystal bar, an air inlet and an air outlet are arranged in the laser cavity and in the direction parallel with the laser crystal bar, and air flow in the laser cavity flows from the air inlet to the air outlet. The cooling method and the cooling device of the end pump laser are compact in structure, are good in cooling effect, and successfully resolve the problem that the end pump laser which can not be cooled with water can be cooled under the condition of high injection power.

The invention discloses a projector capable of being used for underwater working. The whole projector is sealed in a waterproof box body shell made of heat conducting materials. A liquid cooling device and a semiconductor cooling device are arranged in the projector, a sealed type cooling system is formed, and the liquid cooling device and the semiconductor cooling device are both connected with the box body shell. The waterproof projector is of a sealed type structure, the sealed waterproof box body shell made of the heat conducting materials can guarantee the fact that the whole projector is tight without water leakage, moisture-resistant and dustproof effect is achieved, and heat in a box body can be conducted out of the box body shell. The liquid cooling device and the semiconductor cooling device are arranged in the projector to form the sealed type cooling system, and accordingly the problem of radiating cooling of a sealed structure is solved. The projector completely overcomes the shortcomings in the prior art and can be completely used for underwater working and be completely suitable for being used in various bad environments such as a wet sealed environment, an environment with a large amount of dust, a high-temperature environment and an environment with bad radiating.

The invention relates to a high-speed permanent magnet motor rotor structure. Radial bolt holes and axial ventilation holes are formed in a rotor, wherein the radial bolt holes are communicated with the axial ventilation holes; a permanent magnet block and a magnetic pole interval are fixedly arranged on the rotor through bolts; and jackets are thermally sheathed outside the permanent magnet block and the magnetic pole interval on the rotor and are made of titanium alloy or high-strength metal, and the jackets are retracted and then are tightly hooped on the rotor. According to the high-speed permanent magnet motor rotor structure disclosed by the invention, a permanent magnet is fixed by adopting the bolts, the problem of mutual exclusion between a partitioning block and the permanent magnet in the matching process of the thermal sheathing is solved and the work difficulty during thermal sheathing of a permanent magnet motor is reduced; after the permanent magnet is fixed by the bolts, the finish machining of the surface can be conveniently carried out and the heating temperature of the jackets during thermal sleeving is reduced; after the jacks are assembled, the bolts can be unscrewed; bolt holes can be used as the radial ventilation holes; the radial ventilation holes and the axial ventilation holes form a ventilating and cooling system of the rotor; and the bolts are finally unscrewed, and thus the problem of stress concentration caused by the bolts is solved.

The invention relates to a thruster adopting water lubricated bearings, which comprises a rotor, a propeller blade, a motor stator core and a thruster casing. The propeller blade is arranged in the rotor; a waterproof winding is embedded in the motor stator core; and the rotor is connected with the thruster casing through the water lubricated bearings. The water lubricated bearings comprise an axial water lubricated bearing and a radial water lubricated bearing; the axial water lubricated bearing is arranged between an axial boss of the rotor and the thruster casing and used for the axial positioning of the rotor; and the radial water lubricated bearing is arranged between the outer diameter of the rotor and the thruster casing and used for the radial positioning of the rotor. The thruster adopts the structural mode of the integration of the propeller blade and the rotor of a motor, the waterproof motor winding and the water lubricated bearings, and can realize simplification and reliability.