35results about How to "Reduce the risk of overheating" patented technology

The invention relates to an overlapped method for a virtual object in AR glasses. The method comprises that the AR glasses are fixedly arranged in a set position in a practical scene, and a practical marker with multiple scales is placed in front of the AR glasses; panoramic scanning is carried out on the practical scene to obtain a virtual scene corresponding to the practical scene; the virtual scene is introduced into a development device, and a video scene shot by the AR glasses is uploaded to the development device; after that the development device enters a debugging mode, the virtual scene and the video scene are displayed in the same interface, and virtual scales in the virtual scene are adjusted to be overlapped with shooting scales in the video scene; and the virtual object is overlapped to a target position in the virtual scene, an overlap range parameter in overlapping the virtual object in the virtual scene is obtained, and the virtual object and the overlap range parameter are sent to the AR glasses. Thus, the practical scene corresponding to the video scene can be restored highly effectively, and the virtual scene displayed by the AR glasses has a better display effect.

The present invention relates to a method and a device for the heat treatment of welds. To improve and further develop the heat treatment of the weld and the joining weld regions (6, 7) before and behind the actual welding by means of a laser, which is carried out during welding of steel sheets (2) to minimize the risk of crack formation or alteration of the microstructure in the region of the weld, it is proposed according to the invention that the heating of the region of the weld (6, 7) be carried out by means of a multiply stepped line inductor (4, 5) which can be set in a defined way and has zones of different power densities and is configured with a multiple division of its conductor loop lengths and/or with different plating of the conductor loops and/or with a plurality of spacing steps from the steel strip (2). Here, a steeper temperature rise occurs in the first heating stage than in the subsequent heating stage.

The invention relates to a motor vehicle wheel suspension with a suspension carrier unit pivotable around steering axis. The suspension has a carrier unit provided with a motor vehicle wheel (1) and pivotable around steering axis (S). The carrier unit includes a wheel hub (4), at which the motor vehicle wheel is arranged. A two-piece wheel bearing carrier (2) is equipped with a wheel bearing (5), by which the wheel hub is supported in relation to the wheel bearing carrier. The steering axis is formed in a wheel center plane, and a part (2a) of the wheel bearing carrier is supported in relation to another part (2b) of the wheel bearing carrier and tiltable around the steering axis.

The invention relates to a water cooled wall type fixed bed gasifier capable of supplying oxygen in a grading way. The gasifier comprises a water cooled wall outer shell, a gas liquid separator, a furnace grate system, a coal lock, an ash lock and a graded oxygen supply device. An upper opening and a lower opening are respectively formed in the top and the bottom of the water cooled wall outer shell; the gas liquid separator is communicated with the water cooled wall outer shell through a pipeline; the furnace grate system comprises a furnace grate and a transmission device; the coal lock is installed on the upper opening of the water cooled wall outer shell; the ash lock is installed on the lower opening of the water cooled wall outer shell; the graded oxygen supply device comprises a gasifying agent pipeline and a graded oxygen pipeline. The gasifier limits a gasification combustion chamber through the water cooled wall outer shell, the water cooled wall outer shell takes away the heat released by the high-temperature high-pressure coal gas, the outer shell avoids the damage caused by superhigh temperature, and the water cooled wall outer shell is more convenient to overhaul whenbeing compared with the water cooled sleeve type outer shell. By supplying the oxygen in a grading way, the height of a bed layer of a reaction layer is increased, the side reaction is reduced, the environment pollution is reduced, and the risk that the temperature of the furnace grate exceeds is reduced.

A lithium battery energy storage system battery box includes a box, threaded shank, Fixed frame, worm, rotary handle, fixing plate, cooling clamping mechanism, splint, spring, aluminium base plate, first fin, Cover, fan and fan switch, the front side wall of the box body is evenly provided with a ventilation groove, the front and rear sides of the box body are respectively provided with threaded rods, the right end of the threaded rod is rotatably connected with the right side wall of the box body, the left end of the threaded rod penetrates the left side wall of the box body, the left end ofthe threaded rod is provided with a worm wheel, The left side of the worm wheel is provided with a fixing frame, the fixing frame is fixed on the left side wall of the box body, a worm is arranged above the worm wheel, and the worm is meshed with the worm wheel. The invention is convenient to disassemble and assemble. The battery box can fix and efficiently radiate lithium batteries with differentsizes, effectively reduces the risk of excessively high temperature of the energy storage system, and has strong applicability.

The invention relates to an arrangement method of a tower-type boiler high-temperature reheater container system, which can reduce the thermal deflection among the screens of reheater effectively according to the operation characteristic of the tower-type boilers. The arrangement method comprises: arranging a resistance device in a lead-out steam guide pipe, close to the center of the boiler, of the tower-type boiler reheater outlet container, the distribution of inter-screen flow is changed by changing the difference between the lead-out flows on two sides of the reheater system outlet container so as to be matched with the distribution of inter-screen heat release difference on a smoke side to reduce inter-screen thermal deflection.

The invention relates to a central oxygen supply water-cooled wall type fixed bed gasifier. The gasifier comprises a water-cooled wall shell, a gas-liquid separator, a grate system, a coal lock, an ash lock and a stage-by-stage oxygen supplier, wherein the top and bottom of the water-cooled wall shell are respectively provided with an upper end opening and a lower end opening; the gas-liquid separator communicates with the water-cooled wall shell through a pipeline; the grate system comprises a grate and an actuator; the coal lock is mounted at the upper end opening of the water-cooled wall shell; the ash lock is mounted at the lower end opening of the water-cooled wall shell; and the stage-by-stage oxygen supplier comprises a gasifying agent pipeline and a central oxygen supply pipe. Thegasifier disclosed by the invention defines a gasifying combustion chamber by means of the water-cooled wall shell, and brings away heat released by high-temperature and high-pressure coal gas by means of the water-cooled wall shell, preventing the shell from being damaged by ultrahigh temperature, and compared with a water-cooled jacket type shell, the water-cooled wall shell is more convenient to overhaul. By stage-by-stage oxygen supply, the height of a bed layer of a reaction layer can be increased, the proceeding of side reaction is reduced, environmental pollution is reduced, and the risk that a grate overheats is decreased.

The invention discloses a Fischer-Tropsch synthesis device starting method. The Fischer-Tropsch synthesis device starting method comprises the following step that 1, a Fischer-Tropsch synthesis catalyst is reduced by reduction gas at a temperature of 300 to 600 DEG C; 2, a Fischer-Tropsch synthesis reaction process is carried out under the condition of an axial temperature difference delta T1 of a catalyst bed; 3, a Fischer-Tropsch synthesis reaction process is carried out under the condition of an axial temperature difference delta T2 of the catalyst bed; and 4, a Fischer-Tropsch synthesis reaction process is carried out under the condition of an axial temperature difference delta T3 of the catalyst bed so that a liquid hydrocarbon is produced, wherein the axial temperature difference delta T1 is more than 0DEG C and less than 1/2 of the axial temperature difference delta T2; and the axial temperature difference delta T2 is more than 1/3 the axial temperature difference delta T3 and less than 2/3 of the axial temperature difference delta T3. The Fischer-Tropsch synthesis device starting method can solve the problem that in Fischer-Tropsch synthesis device starting, a temperature is over the standard temperature easily, and can improve starting smoothness.

The invention belongs to the technical field of heat treatment, and particularly relates to a proportional cooling control method used for a differential temperature heating technology heat treatment furnace. At present, an excessively-small slope of slope cooling is prone to metal overtemperature, and the production cycle can be prolonged due to an excessively-large slope; and the production period of jump cooling is long. According to the proportional cooling control method used for the differential temperature heating technology heat treatment furnace, the metal temperature participates in furnace gas temperature control, and the metal temperature and an original PID temperature control algorithm of a control system are combined, so that the production period is greatly shortened, and meanwhile, the risk of metal overtemperature is avoided; and an effect of automatically controlling a differential temperature cooling process is achieved, the production period is shortened, and the purpose of reducing the risk of metal overtemperature is achieved.

The invention discloses a low-temperature adsorption and high-temperature desorption efficient oil gas recovery method, and relates to an oil gas recovery method. Raw material oil gas is introduced into a primary cooling tower, a refrigerant in a heat pump system is used for evaporating and refrigerating in an evaporator in the tower to cool the raw material oil gas, part of heavy components and water vapor in the oil gas are condensed and separated, condensate generated by cooling enters an absorption system, and cooled low-temperature oil gas enters an adsorption unit. The adsorption unit is provided with at least three towers, two towers are connected in series for adsorption, the other tower is used for desorption and regeneration, and the three towers are alternately switched through valve control in the adsorption and desorption processes to circularly treat oil gas. The gas reaching the emission standard after adsorption is discharged. Saturated oil gas is adsorbed by the adsorption tower, heat obtained in the primary cooling tower enters a heat exchange facility in the adsorption tower by the heat pump system through refrigerant circulation of the heat pump system to heat an adsorption bed layer, vacuum desorption is carried out, and desorbed oil gas is introduced into the absorption system. Low-temperature adsorption and high-temperature desorption are realized, the oil gas recovery rate is high, the adsorbent regeneration efficiency is high, and the operation cost is low.

The invention provides a refrigerating device and a refrigeration and transportation box provided with the same and relates to the field of refrigeration device. The technical problem is solved that arefrigeration unit existing the prior art possibly causes inaccurate temperature control of a refrigeration chamber in the refrigeration process. The refrigeration device comprises a refrigeration unit and a cold energy transmission portion, wherein the cold energy transmission portion comprises a communicating pipe for containing a refrigerant and an energy storing device coating the outer surface of the communicating pipe, the refrigerant can flow in the refrigeration unit and the communicating pipe, the energy storing device comprises a sleeve arranged on the outer surface of the communicating pipe, an airtight space is formed between the inner surface of the sleeve and the outer surface of the communicating pipe and is filled with energy storage liquid, and the energy storing device can absorb and store the cold energy released by the refrigerant. By utilizing the refrigerating device, an appropriate refrigerating environment can be provided for a refrigerator or a refrigeration box more accurately.

The invention provides a warm feeling enhancing fabric and a preparation method thereof. The warm feeling enhancing fabric comprises a heating layer, a heat conduction and heat storage layer and a thermal insulation layer. The heating layer is a fabric finished by a warm feeling and moisture retention composite finishing agent, the heat conduction and heat storage layer is a high heat conduction phase change microcapsule coating, and the thermal insulation layer is an aerogel foaming coating. According to the preparation method, efficient heat management of the fabric can be realized through cooperation of heating, heat conduction, heat storage and heat insulation effects among all layers, so that the warm feeling effect is remarkably enhanced; and meanwhile, moisturizing factors are added into the fabric, so that dryness and discomfort of the skin are relieved in winter, and the skin can be kept moist.

The invention discloses a bearing cavity sealing system of an aero-engine and a control method of the bearing cavity sealing system. The bearing cavity sealing system of the aero-engine comprises an air guide flow path and at least two exhaust flow paths, the air guide flow path is used for guiding sealing air into a middle bearing cavity and a rear bearing cavity from an air compressor, and the exhaust back pressures of the at least two exhaust flow paths are different. The air guide flow path is selectively communicated with at least one exhaust flow path in the at least two exhaust flow paths. According to the bearing cavity sealing system of the aero-engine, the exhaust flow paths with different exhaust back pressures are arranged, so that the exhaust back pressures of the air guide flow paths can be controlled according to the running state of the aero-engine, and then the flow of sealing air is adjusted. When the aero-engine is in a high Mach number pneumatic parameter state, the exhaust back pressure is reduced to further reduce the horizontal distribution of the on-way pressure of an air guide flow path, so that the sealing pressure difference of a bearing cavity is effectively reduced, and the lubricating oil consumption is reduced.

The invention discloses a method for improving a process of a displacement gas of a reactor of a continuous reformer. The displacement gas is changed from circulating hydrogen to gas-source hydrogen containing less hydrocarbon substances so as to solve the technical problems that lifting and transportation are influenced by a catalyst with oil caused by poor purging effects of the circulating hydrogen due to many hydrocarbon substances in the circulating hydrogen; and non-methane hydrocarbons in a regenerated vent gas exceed the standards because a chlorine absorption section or a chlorine absorption tank of the spent catalyst tend to deterioration in operating conditions and has the hydrocarbon substances.

The invention discloses a condensed water combined cycle system and method for improving the cold reheat steam supply capacity of a boiler. The system comprises steam pipeline isolation valves, a heatrecycling heat exchanger, a flow adjusting pore plate, a water inlet isolation valve, a water outlet isolation valve, a bypass isolation valve, a water-water heat exchanger and a circulating pump. Cold reheat steam enters the heat recycling heat exchanger through a steam pipeline, the cold reheat steam is mixed with original steam through a steam return pipeline after being subjected to heat exchange and cooling, the flow adjusting pore plate is newly arranged on the cold reheat steam pipeline for balancing the steam flow, and closed circulating water absorbs heat in the heat recycling deviceand is conveyed into the water-water heat exchanger through the circulating pump. Condensed water at an outlet of a shaft seal heater enters the water-water heat exchanger after passing through the water inlet isolation valve, by means of the system, the cold reheat industrial steam supply capacity of the boiler can be effectively improved, the overtemperature risk of a boiler reheater can be reduced, meanwhile, online operation and shutdown can be realized, in addition, the cold reheat steam supply flow of a unit can be effectively promoted, and therefore, the economical efficiency of the unit is improved.

The invention relates to a cold section steam multi-stage utilization system for enhancing the industrial steam supply capacity of a once-through boiler. At present, more once-through boilers use cold resteam as steam sources, but if much cold resteam is extracted, a boiler reheater is likely to have an over-temperature risk. The cold section steam multi-stage utilization system for enhancing the industrial steam supply capacity of the once-through boiler comprises a steam turbine high-pressure cylinder (1), a high-pressure heater (2) and a stepped heat exchanger (3), and the steam turbine high-pressure cylinder is connected with the high-pressure heater through a high-pressure heater steam extraction pipeline (4) and connected with the stepped heat exchanger through a steam pipeline (5). A flow adjusting pore plate (6) is installed on the steam pipeline, the stepped heat exchanger is connected to the flow adjusting pore plate in parallel, and feed water of an outlet of the high-pressure heater enters the stepped heat exchanger after passing through a bypass isolating valve (7). The cold section steam multi-stage utilization system is applied to the field of energy gradient utilization.