16results about How to "Avoid heat stress" patented technology

The utility model provides a temperature regulating system of a compressed air energy storage chamber, which comprises an artificial chamber horizontally arranged underground, a vertical shaft arranged at the top of the artificial chamber, an air circulating pipeline and a water pipeline, the air circulating pipeline and the water pipeline are arranged in the artificial chamber, and an air inlet and an air outlet at two ends of the air circulating pipeline are oppositely arranged along two sides of the artificial chamber respectively. An axial flow fan is arranged in an air inlet of the air circulating pipeline, the water pipeline comprises a water inlet pipeline and a water outlet pipeline, the water inlet pipeline is communicated with a water outlet of the warm water tank and an in-plant circulating cooling water inlet, the water outlet pipeline is communicated with a water inlet of the cold water tank and an in-plant circulating cooling water return port, and a spiral heat exchange pipe is arranged between the water inlet pipeline and the water outlet pipeline. The spiral heat exchange pipe is embedded in the air circulation pipeline behind the axial flow fan and used for exchanging heat with air in the chamber, adjusting the temperature of the air in the artificial chamber during inflation energy storage and deflation energy release, guaranteeing the structural safety of surrounding rock around the artificial chamber and prolonging the service life of sealing materials in the chamber.

This application provides a pipe connection structure and frame. The pipe connection structure includes a first pipe, a second pipe, and a connector. The first pipe defines a first flow path and at least one first mounting hole; the second pipe defines a second flow path and at least one second mounting hole; the connector passes through the first and second mounting holes sequentially, and the connector defines a hollow channel that communicates with the first and second flow paths respectively. By using a connector that passes through the first and second mounting holes sequentially to connect the first and second pipes, thermal stress caused by thermal expansion and contraction at the weld joint of the first and second pipes can be avoided. This ensures that the connection between the first and second pipes remains structurally stable even under high-temperature operating environments, extending the service life of the pipe connection structure.

The utility model discloses a temperature control device for a high-temperature pump, the temperature control device for the high-temperature pump is arranged between a pump body of the high-temperature pump and a motor, the temperature control device comprises a device main body, an axial spiral flow channel and a labyrinth flow channel, the upper end of the device main body is connected with a shell of the pump body, and the lower end of the device main body is connected with a shell of the motor; the axial spiral flow channel is arranged so that circulating heat dissipation can be achieved through flowing of a high-temperature working medium; and the labyrinth runner is used for prolonging a cooling path and increasing a turbulence effect so as to improve the heat exchange efficiency.

The invention relates to the technical field of coal analysis and assay, and discloses a high-temperature sample rapid cooler which comprises a box body, at least one placing notch for placing a cylindrical cupel is formed in the surface of the box body, and a water inlet pipe is fixedly connected to one side of the box body. Through the non-contact cooling of the operation assembly and the placing notch, the rotation of the cupel ensures that the whole circumferential surface of the cupel can perform sufficient and uniform heat exchange with the low temperature conducted by the placing notch, so that the thermal stress generated by local shock cooling is effectively avoided, and further, due to the action of gravity, the heat transfer efficiency is improved. The high-density impurities such as unburnt gangue particles in the cupel can naturally settle and always gather at the bottom of the cupel, namely the position closest to the high-thermal-conductivity placing notch, so that the part which has the maximum thermal resistance and needs more cooling energy is just located in the optimal heat exchange area, and the cupel is suitable for underground laboratory places with extremely high anti-explosion requirements.

The invention provides a honeycomb rectification structure and device, a plasma light source and semiconductor equipment, the honeycomb rectification structure is applied to a laser-maintained plasma light source, the honeycomb rectification structure comprises a plurality of honeycomb units which are adjacently arranged, the honeycomb units form a channel structure used for allowing airflow to pass through, and the channel structure is used for allowing the airflow to pass through. The axial extension directions of the plurality of honeycomb units are parallel; and the heat exchange runners are arranged between the adjacent honeycomb units, allow heat exchange media to flow through and are used for absorbing heat of the honeycomb units. The honeycomb rectifying device comprises the honeycomb rectifying structure. And the heat exchange circulation system is connected with the heat exchange flow channel of the honeycomb rectification structure and used for driving the heat exchange medium to circularly pass through the heat exchange flow channel and discharging heat of the heat exchange medium.

The application discloses a kind of copper electrode laser curing system and method of TOPCon solar cell, the system includes mid-infrared laser generation module, beam shaping and energy management module, precision motion and positioning platform and synchronous control and monitoring module.The method used is: after coating copper paste on the back silver seed layer of TOPCon battery, laser beam is irradiated, by accurately controlling laser energy density and pulse width, energy is selectively resonant absorbed by copper paste organic matter, millisecond level rapid curing is realized, while ensuring that energy density is lower than the damage threshold of lower layer aluminum oxide / silicon nitride passivation film, so that the base temperature rise is lower than 200 DEG C.The application overcomes the defects of traditional thermal curing, such as low efficiency, high energy consumption and easy damage to passivation layer, and provides an efficient, reliable and non-damage battery performance industrialization solution for TOPCon battery low-cost "de-silverization".

The invention provides a low-toxicity environment-friendly neodymium-iron-boron magnet surface magnetic material glue removal liquid and a removal process. The removal liquid comprises the following components in parts by mass: 7 parts of dimethyl carbonate and 3 parts of acetone. The removal process comprises the following steps: S1, washing a to-be-treated magnet with deionized water and putting the to-be-treated magnet into a hollow tool basket; s2, removing liquid is added into an ultrasonic cleaning machine, the hollowed-out tool basket containing the to-be-treated magnet is completely immersed into the removing liquid, the ultrasonic cleaning machine is started to conduct degumming cleaning on the to-be-treated magnet to form a treated magnet, the degassing and frequency conversion functions of the ultrasonic cleaning machine are started, the ultrasonic frequency ranges from 35 kHz to 45 kHz, the ultrasonic power ranges from 300 W to 500 W, and the magnet to be treated is obtained; the cleaning time ranges from 15 min to 25 min, and the cleaning temperature ranges from 25 DEG C to 30 DEG C; s3, the treated magnet is washed with deionized water; and S4, drying treatment is conducted on the treated magnet through drying equipment. The degumming device can improve the degumming treatment efficiency.

The utility model discloses an efficient target material automatic welding device which comprises a working table, two material carrying platforms installed on the working table, a welding flux coating mechanism and a mechanical arm, heating areas are arranged in the middles of the two material carrying platforms, and meanwhile positioning mechanisms are installed on the two material carrying platforms. The positioning mechanism is used for positioning the back plate placed on the material carrying platforms in a heating area, one material carrying platform is used for carrying out stepped heating on the back plate so that welding flux on the back plate can be melted, and the other material carrying platform is used for carrying out stepped cooling on the back plate so that the welding flux on the back plate can be solidified; the solder coating mechanism is erected on the workbench, and the solder coating mechanism is used for uniformly coating molten solder on the back plate; the mechanical arm is used for grabbing the target material and the back plate to conduct feeding and discharging operation and further used for transferring the target material and the back plate from one material carrying platform to the other material carrying platform. The welding precision and the production efficiency can be improved.

The present application relates to the technical fields of laser welding, and discloses a laser welding device for track production, which comprises a rotating disc, and further comprises: welding assemblies, a plurality of which are evenly arranged in a ring shape on the top of the rotating disc and used for welding track components; heating blocks, a plurality of which are distributed along the welding assemblies and used for preheating the track components to be welded; and a circular ring arranged below the rotating disc and having a first limiting groove and a second limiting groove respectively formed on its inner and outer surfaces. The present application can preheat the track plates and the tooth blocks before welding, reduce the temperature difference, make the temperature change of the welding area more gentle, thereby reducing the occurrence of thermal stress and cracks, avoiding the rapid increase of the temperature of the welding area, the formation of large thermal stress leading to the generation of cracks, reducing the stress caused by the excessive temperature difference, improving the welding quality, and further improving the use effect of the device.

The invention relates to the technical field of zinc alloy balance block machining, and discloses a zinc alloy balance block machining device and method.The zinc alloy balance block machining device comprises a discharging machine, a workbench, a lower mold and an upper mold; the discharging machine and the workbench are sequentially and transversely arranged, and the discharging machine is used for loading and unwinding zinc alloy coiled materials. A press machine is installed on the workbench, the lower die is installed on the workbench, and the upper die is installed at the driving end of the press machine and located above the lower die. The upper die comprises an upper die base and punch typewriting pieces, the upper die base is connected with the driving end of the press machine and driven by the press machine to move up and down, and the multiple sets of punch typewriting pieces arranged at intervals are installed at the bottom of the upper die base. A punch forming process is adopted to replace a high-temperature die-casting process, a connecting rib groove is formed in the surface of the zinc alloy coiled material through the punch typewriting piece, marking is conducted, then bending forming and fixed-length cutting are conducted, the high-temperature problem is avoided, the toughness, strength and ductility of the material are improved, the rejection rate is reduced, and the bending test qualification rate is increased.

This invention discloses a large-arc bend injection mold and molding method, belonging to the field of injection molding technology. The mold includes a moving mold, a fixed mold, and a core mold with a circular arc core; it also includes a demolding drive mechanism for driving the core mold and product to generate a first displacement away from the fixed mold; and a pointer-type rotary demolding mechanism, which includes a pointer push rod and a push ring rotating around the axis of the circular arc core. During demolding, after the product is lifted with the core mold, the pointer push rod drives the push ring to swing along the circular arc path to push the product out. This invention also reduces the covering force by performing pre-demolding through an assisted demolding mechanism and ensures the stability of the core mold during injection molding using a core positioning mechanism. This invention replaces the traditional hot bending process with one-time injection molding, solving the problems of low production efficiency, poor roundness, and easy cracking caused by thermal stress in existing technologies for large-arc bend pipes, significantly improving the geometric accuracy and operational reliability of the product, and is particularly suitable for ultra-high voltage converter valve cooling system pipelines.

This invention provides an integrated welding device for hydrogenation reactor cylinder sections, relating to the field of welding technology. It includes a telescopic section, with a welding section at its actuating end. The actuating end of the telescopic section is used to move the welding section along the axial direction of the cylinder section. The welding section includes a feeding assembly, a feeding head, and a recovery assembly. The feeding assembly delivers welding strips and unused flux to the surface of the cylinder section through the feeding head. The recovery assembly's suction end recovers the used flux from the cylinder section surface and delivers the used flux back to the feeding head through its discharge end. An adjustment assembly within the feeding head can adjust the ratio of unused flux to used flux, saving flux while quantitatively supplying a higher temperature used flux to the cylinder section surface, slowing heat loss from the molten pool, and preventing excessively rapid cooling of the molten pool and the generation of thermal stress.

The invention discloses a diffusion bonding process for aviation parts, which belongs to the technical field of diffusion welding and comprises a hot isostatic press mounted in a vacuum furnace, a machine body support is arranged in the hot isostatic press, supporting arm plates are mounted on two sides of a mode switching table, and the supporting arm plates are connected with side pressure clamping plates through synchronous displacement assemblies. A displacement switching piece for directly clamping the side face of the base material is arranged on the side pressing clamping plate, and an optical detection camera is arranged on the machine body support and used for monitoring the surface of the installed base material at any time. The resistance heating plate is integrated on the intermediate clamping plate, so that the intermediate can be directly and independently heated, synchronous temperature rise and temperature consistency of the intermediate and base metal are realized, thermal stress generated by temperature difference is fundamentally avoided, performance reduction and deformation of a joint are prevented, stability and reliability of metallurgical quality of the joint are ensured, and the service life of the joint is prolonged. The problems that in a traditional technology, an intermediate is heated through heat conduction of base metal, and temperature rise lags behind and is not uniform are solved.

The invention discloses a section scanning electron microscope sample suitable for a metal micro guide wire and a preparation method of the section scanning electron microscope sample. Belongs to the technical field of material microscopic analysis. The preparation method comprises the following steps: fixing the metal micro guide wires by constructing conductive rigid clamps, filling conductive adhesives among the conductive rigid clamps, and arranging a plurality of metal micro guide wires among the conductive adhesives; the metal micro guide wires are exposed out of the two ends of the conductive rigid clamp by 0.5-1.5 cm; and the diameter of the metal micro guide wire is 45-500 microns. The invention provides a preparation scheme of a metal microwire section scanning electron microscope sample, which is simple to operate and does not need any large equipment, and provides a rigid and conductive support system capable of performing directional electrolytic polishing for a soft and fine metal wire on the premise of not introducing external stress, not polluting the sample and not using expensive equipment. Therefore, the scanning electron microscope samples are efficiently prepared in batches at low cost, and the high-resolution characterization requirement is met.

The application discloses a kind of cold-rolled roller chrome plating layer defect repair devices, it is related to metal rolling equipment technical field.The device includes workbench, first supporting roll, load roll, second supporting roll, cold-rolled roller, repair device and shroud;Repair device includes support, recess, driving motor, screw rod, slot block and composite repair execution mechanism.Support is fixed to the side of cold-rolled roller, and composite repair execution mechanism can be moved radially by driving motor.Three load-bearing structures that can move synchronously in axial direction are integrated in composite repair execution mechanism, respectively carrying online detection module, laser cleaning head and cold spraying deposition head, and loading assembly that can automatically adjust angle is arranged on each load-bearing structure.It is close to cold-rolled roller when repairing, scanning and identifying defects, and driving laser cleaning head and cold spraying deposition head to clean and deposit repair defects in turn.The application realizes the online, automatic repair of cold-rolled roller, shortens maintenance time, and guarantees the continuity of rolling production.