37results about How to "Guaranteed working conditions" patented technology

The invention discloses a packaging structure of a fuel cell stack. The packaging structure comprises an upper end plate, insulating plates, current collection plates, a stack body and a lower end plate, wherein the upper end plate and the lower end plate are parallel to each other; the two insulating plates are arranged between the upper end plate and the lower end plate; the two current collection plates are arranged between the two insulating plates; the stack body is arranged between the two current collection plates; the packaging structure further comprises a plurality of insulating fixed rods which are located at the periphery of the stack body; the two ends of the insulating fixed rods are connected with a nut of the upper end plate and a nut of a lower end plate respectively; inner surfaces of the nuts are provided with inner threads which are matched with outer threads at the two ends of the insulating fixed rods; the upper surface of the lower end plate is provided with a concave groove and an elastic supporting part located between the groove and the insulating plates; the groove is parallel to the surface of the lower end plate. The packaging structure disclosed by theinvention provides uniform and constant assembling pressure to the inner part of the cell stack, so that the stress on the lower surface of the stack body is uniform; normal working conditions of thecell stack is ensured and the service life of the cell stack is prolonged.

The invention discloses a moisture-proof mobile substation, include a box body of a substation, an upper protective plate attached to the top of the box body of the substation and a side protective plate attached to the left and right sides of the box body of the substation, A heat insulation and moisture absorption cavity is formed between the side surface of the box body and the side protectiveplate of the transformer substation, A plurality of groups of heat-insulating moisture-absorbing cotton are arranged in the heat-insulating moisture-absorbing cavity, heat insulation and moisture absorption cotton can absorb and insulate certain heat, and is capable of absorbing heat conducted through the side shields, it has good effect of heat insulation and moisture absorption, the normal working condition of the substation box is ensured, A telescopic move wheel is arranged at that low end of the box body of the substation, the movable wheel and its telescopic structure are isolated and protected in a moisture-proof cavity in an internal protective housing, The invention avoids the phenomenon that the external moisture enters the inside of the substation box body from the protruding groove, has good moisture-proof property as a whole, is convenient to move, can change and move the substation box body according to the actual demand, is convenient to move the position of the substation box body in time when the water is swollen, and can cope with the sudden situation.

Provided is a heat pipe radiator with a vertical heat conduction surface. The radiator is characterized in that the included angle between the normal of the heat conduction surface, in the direction in which a heat conduction block of an evaporation segment makes contact with a working medium in a heat pipe, and the axis of the heat pipe is greater than or equivalent to 75 degree and lower than 85 degree; a heat-conducting metal layer does not make contact with the working medium in the heat pipe, wraps the contact position with the pipe wall of the evaporation segment, and is connected with the heat conduction block of the evaporation segment; the heat conduction surface in the direction, in which the heat conduction block of the evaporation segment makes contact with a working object, and makes tight contact with the heat radiation surface of the working object always, and the contact surface is coated with an auxiliary material of high heat conduction performance; an external pipe of an heat insulation segment of the heat pipe is wrapped in a heat insulation material; a condensing segment of the heat pipe is inserted into a hole of radiating rib of the condensing segment and makes a good thermal contact always; and a cooling assembly of the condensing segment includes an air cooling assembly or a liquid cooling assembly. The heat pipe radiator can improve the operation efficiency, save energy and protect the environment.

An anti-freezing pressure release valve of natural gas consists of valve body, air inlet and outlet, gas pressure meter interface, diaphragm set, regulation unit and center unit. It is featured as setting center unit at bottom of valve body to be center unit being connected long, externally arranging operation spring of center unit in socket sleeve and setting heat conduction component used for radiating heat at down end of socket sleeve.

The invention provides a box body of a gearbox for a rail transit vehicle. The box body comprises an output-end oil collection groove, an input-end oil collection groove, a middle-position oil collection groove and an oil tank, wherein the output-end oil collection groove and the input-end oil collection groove are formed in the upper part of the inner wall of the box body, and the middle-positionoil collection groove is located below the input-end oil collection groove, and located between an output-end bearing installation position and an input-end bearing installation position; output-endoil inlet holes are formed in the bottom of the output-end oil collection groove and the first sidewall of the middle-position oil collection groove, and used for lubricating an output-end bearing; the input-end oil collection groove is inclined downwards, input-end oil inlet holes are formed in the lower part of the sidewall of the input-end oil collection groove and the second sidewall of the middle-position oil collection groove, and used for lubricating an input-end bearing, and the second sidewall and the first sidewall are oppositely arranged; and the oil tank is arranged at the bottom of the box body. The box body provided by the invention can meet the working condition requirement during the high-speed running of multiple unit trains.

The invention discloses a liquid-cooled vertical heat conducting surface heat pipe radiator. The liquid-cooled vertical heat conducting surface heat pipe radiator is characterized in that an included angle between the normal line of a heat conducting surface in the contacted direction of an evaporation section heat conducting block with a heat pipe internal working medium and the axle of one section of heat pipe directly connected with the heat conducting surface is 38-80 degrees; the structure enables one part of the evaporation section heat conducting block to become a pipe wall of a heat pipe; a condensation section cooling module includes a liquid cooling module; the liquid cooling module includes at least one cooling liquid box, or a cooling liquid box and a set of relay pipes and a cooling source liquid box, or a set of cooling liquid pipes and a set of relay pipes and a cooling source liquid box, or further includes a cooling liquid box fan, a liquid pump and an electromagnetic valve; cooling liquid enters the cooling liquid box or the cooling liquid pipe from a low joint to absorb heat of the heat pipe during flowing; the liquid flow with increased temperature by absorbing the heat is returned to the cooling source liquid box from a high joint for cooling; and the liquid-cooled vertical heat conducting surface heat pipe radiator has the beneficial effects of improving the operation efficiency, saving the energy and protecting the environment.

The invention discloses an evaporative pattern casting sand box. The evaporative pattern casting sand box comprises an upper sand box body and a turbine discharging machine. The lower side of the upper sand box body is connected with a middle sand box body. The lower side of the middle sand box body is connected with a lower sand box body. The outer side of the lower sand box body is provided withan opening sealing plate. The outer side of the opening sealing plate is provided with a power plug. The inner end of each water supply pipe is connected with a cooling cavity. The outer sides of thecooling cavities are connected with the upper sand box body, the middle sand box body and the lower sand box body through reinforced fixing rods. Air permeable plates are connected between the cooling cavities. A fine screen and a coarse screen are fixed into each air permeable plate. The evaporative pattern casting sand box is provided with the upper sand box body, the middle sand box body and the lower sand box body. The box bodies of the evaporative pattern casting sand box can be disassembled. The interior of the evaporative pattern casting sand box can be overhauled conveniently, and theworking dimensions of the evaporative pattern casting sand box can also be changed. Accordingly, the evaporative pattern casting sand box can be used for conducting casting operation on different types of models, and the usage efficiency of the evaporative pattern casting sand box is improved.

The invention relates to a convex manhole cover for an escape opening of a comprehensive pipe gallery, and belongs to the technical field of the comprehensive pipe gallery. The convex manhole cover includes a base and a cover plate hinged to the base and capable of being opened and closed. The cover plate is of a pyramid-shaped housing structure with multiple sides. The cover plate of the pyramid-shaped structure has the characteristics of the high middle and the low edge, debris is not prone to being accumulated on the cover plate, and the hidden danger that the cover plate is difficult to open from the inside of the comprehensive pipe gallery and an escape passage is blocked due to stacked items on the cover plate is eliminated.

The invention discloses a method for indirect dispersion strengthening of a platinum channel. By plasma spraying, a second-phase zirconia coating insoluble in a metal matrix is sprayed on the outer wall of the platinum channel, and the platinum is subjected to indirect dispersion strengthening by the permeation and diffusion effect between the particles at a high temperature. By means of the method, on one hand, the expansion resistance under high-temperature and high-temperature creep resistance of the platinum channel are improved, and on the other hand, the platinum is prevented from beingoxidized and volatilized at high temperatures and generation of zirconium stones due to the direct contact of molten glass with zirconia is avoided.

The invention relates to a high shear colloid mill, which comprises a colloid mill shell (1) and a rotor (2), and is characterized in that: the rotor (2) is connected with the colloid mill shell (1); and a heat conducting oil cavity (a), an asphalt medium cavity (b), a water medium cavity (c) and a lubricating medium cavity (d) are formed in the colloid mill shell (1), and are independent of one another and sealed with one another. During operation, the four cavities solve the problems of lubrication, cooling, heating and heat preservation of the high shear mill.

A movable vehicle-carried laboratory for geological prospecting in shallow sea and on shoal and land is composed of a truck with two flating tanks at both sides of chassis, instrument holder, experimental bench, and experimental instruments including positioning system, dual-frequency echo-sounding instrument, water parameter measurer, scanner, gravitation drill, etc.

A steam heater is provided. A cavity 2 is horizontally mounted on a support base 1 through a lateral positioning surface 3 and a longitudinal positioning surface 4. A group of separating plates 5 respectively divide a container into a group of chambers, and each cavity is communicated end to end. A steam inlet 7 and a condensate outlet 8 are respectively communicated with a chamber in the cavity 2. A group of blowoff valves 9 are arranged on an end face of the other side of the cavity 2. The group of blowoff valves 9 are respectively communicated with the group of chambers. A principle of coilheat exchanger is used in the improved heater. Fins are arranged on an upper plate of the heater, saturated steam flows along each chamber in the cavity, to perform full heat exchange with a hot plate. Since the fins are added on the surface of the upper plate, absorption area of the upper plate is increased by 20%, and the upper plate is ensured to absorb more heat. The structure improves utilization rate of steam and improves heat energy of the heater, and is beneficial to keep temperature of the heater to be stable when the heater exchanges heat with a paper board.

An air-cooled heat pipe radiator with upright heat-conducting surfaces is characterized in that the included angle between a normal line of the heat-conducting surface, contacted with a working medium in a heat pipe, of an evaporation-section heat-conducting block and the axis of the heat pipe is 32-83 degrees; the heat-conducting surface, contacted with a work object, of the evaporation-section heat-conducting block remains in close contact with the a radiating surface of the work object, and the contacted surfaces are coated with an auxiliary material with a good heat-conducting property; a condensation section of the heat pipe is inserted into a hole of a condensation-section radiating rib and maintains favorable heat contact; condensation-section radiating fins are in close-contact connection or integral connection with the condensation-section radiating rib; and one or more heat pipes are included, the cross section of each heat pipe, which is perpendicular to the axis of the heat pipe, is round or is shaped like other plane figures. The heat pipe radiator employs an air-cooling mode, is friendly to the environment and has the beneficial effects of improving the operating efficiency, saving materials and protecting the environment.

The embodiment of the invention provides a roller washing machine and a clothes washing method thereof, the clothes washing method comprises an ultrasonic washing method, and the ultrasonic washing method comprises the steps that the current position of an ultrasonic device is obtained; the current liquid level of the inner cylinder is obtained; according to the current position of the ultrasonic device and the current liquid level of the inner cylinder, judging whether the ultrasonic device is immersed in the liquid of the inner cylinder; when the ultrasonic device is immersed in the liquid of the inner cylinder, the ultrasonic device is controlled to be started; when the ultrasonic device is separated from the liquid in the inner cylinder, the ultrasonic device is controlled to be closed. According to the roller washing machine and the washing method thereof, the working condition of the ultrasonic device is guaranteed, the cavitation effect, the acceleration effect and the direct inflow effect of ultrasonic waves emitted by the ultrasonic device in liquid can directly and indirectly act with dirt in the liquid in the inner barrel, and the dirt layer is dispersed, emulsified and stripped to achieve the cleaning purpose.

The invention provides a power battery rapid separation system and method. The system comprises a slidable bracket and a vehicle body support, a battery box is fixed to the slidable bracket, sliding rolling wheels and guide rolling wheels are arranged on frames at the two sides of the slidable bracket, the sliding rolling wheels are embedded in rolling wheel sliding ways in the vehicle body support, and the slidable bracket can horizontally move along the roller slideways; a taper pin is arranged in the innermost side frame, extending into the vehicle body bracket, of the slidable bracket, andis matched with a positioning sleeve fixed on the vehicle body bracket; and the frame in the outermost side of the slidable bracket and the vehicle body bracket are fixed through a quick locking device. According to the scheme, rapid installation of the battery can be guaranteed, the normal operation requirement can be met, the battery can be rapidly separated from a vehicle body when a dangeroussignal occurs in the battery, and injuries to passengers and the vehicle are avoided.

The invention discloses a prestress releasing construction clamping sheet shifting device and a shifting method thereof. The prestress releasing construction clamping sheet shifting device comprises clamping components distributed in the circumferential direction and gear rings arranged on the peripheries of the clamping components, wherein the clamping components are in an arc shape, the adjacent clamping components are connected in an embedded mode, and racks extending towards the gear rings are fixedly arranged on the clamping components; the joints of the racks and the gear rings are meshed with coaxial combined gears, the racks are meshed with upper gears of the combined gears, the gear rings are meshed with lower gears of the combined gears, and cylindrical anchor withdrawing devices are arranged in the gear rings; long grooves capable of containing the combined gears are vertically formed in the positions, corresponding to the combined gears, of the cylinder walls of the anchor withdrawing devices, and sliding rods penetrating through middle shafts of the combined gears are fixedly arranged at the two ends of the long grooves. The shifting device for conveniently releasing clamping sheets in prestress construction and the shifting method of the shifting device are provided so as to solve the construction difficulty caused by the limited operation and sight line of the traditional prestress construction.

The invention discloses a heavy torque logical encoder detection machine, which comprises a detection table, a linear detection material passage and a tooling, wherein the linear detection material passage is arranged on the detection table; the tooling advances along the linear detection material passage and carries a plurality of encoders to be detected; the detection table is sequentially provided with a feeding device, a detection device, a rotating device for rotating an encoder rotating shaft and a screening device for screening rejection products along the linear detection material passage; the rotating device is arranged right under the detection device; the detection device comprises an upper detection assembly and a side detection assembly; the tooling is provided with a plurality of placing grooves; a through hole through which the encoder to be detected passes is arranged at the groove bottom of the placing grooves. The heavy torque logical encoder detection machine has theadvantages that the structure is reasonable; through the duplex ascending and descending and a clamping tube, a clamp claw sleeves on the encoder rotating shaft; the rotating motor is enabled to stably drive the rotating shaft to rotate; the complete test of the work condition of the encoder is ensured. Through the driving assembly, the swinging seat swings towards the two sides; the fast screening on the encoder is realized; the test efficiency is improved.