82results about How to "Quick export" patented technology

The utility model relates to battery pack heat preservation technical field, concretely is a kind of structure of improving the heat preservation performance of battery pack upper cover, including upper cover body, the inner surface of upper cover body is equipped with the honeycomb cavity of uniform distribution, the honeycomb cavity is filled with aerogel particles, the outside of honeycomb cavity is equipped with the heat insulation layer of integration with upper cover body, the heat insulation layer is inlaid with multiple heat-conducting fibre bundles;The outer surface of upper cover body is equipped with several micropore array, and the micropore array is filled with graphene coating.The utility model can significantly improve the heat preservation effect of battery pack under low temperature environment, simultaneously under high temperature condition, the excess heat generated by battery module is quickly exported, and heat accumulation is avoided.

The utility model discloses an anti -oxidation corrosion boiler coil pipe, including fixed guide rail, the one side of fixed guide rail has and inserts the installation sliding block, the one side of fixed guide rail inner chamber has set up the sliding cavity of equal interval distribution, the inner chamber sliding of sliding cavity is installed with the locating pin, one end of locating pin is fixedly connected with the spring, one end of spring is fixedly connected in the sliding cavity inner wall, the one side of installation sliding block is set up with the locating slot of locating pin adaptation of fixed guide rail inside both ends all are seted up and are limited the slot, the utility model discloses the structure design of setting up guide rail straight up and down, when the maintenance of dismounting coil pipe, unlocking locking structure, can under the guidance of slide rail quick completion coil pipe's dismounting work to the speed of coil pipe's dismounting is accelerated, improves the dismounting maintenance efficiency of coil pipe, provides the convenient for user's dismounting maintenance work.

The invention provides a central control wire harness rubber protection assembly, and relates to the technical field of central control wire harness protection. A connecting mechanism is fixedly arranged on the outer side of each rubber shell, a locking device is fixedly arranged on the outer side of each rubber shell, and a sealing device is arranged between the two sets of rubber shells. A heat dissipation device is fixedly arranged in the rubber shell, a connecting device is fixedly arranged at the bottom of a locking device, an adjusting mechanism is fixedly arranged on the inner side of the connecting device, and a joining mechanism, the locking device, the adjusting mechanism and the connecting device are arranged; the rubber shell can be simply and conveniently spliced and installed, and the phenomenon that the rubber protection assembly is inconvenient to sleeve the outer side of the cable due to the fact that the wire harness connector is larger than the outer diameter of the cable is avoided; and the wire harness can be supported according to the angle of the wire harness. The problems that during use, splicing is not convenient, and a rubber protection assembly is generally not provided with a supporting structure are solved.

The utility model discloses an impurity removal device for composite fiber processing, which comprises a shell, a discharge pipe is arranged at the bottom of the shell, an unloading assembly is arranged on the inner wall of the discharge pipe, the unloading assembly comprises a first threaded cylinder, a first driving bevel gear and a second driving bevel gear, a second threaded cylinder is rotatably mounted at the bottom end of the first threaded cylinder, a first threaded rod is mounted on the inner wall of the first threaded cylinder in a threaded mode, a filter screen is rotatably mounted at one end of the first threaded rod, and a first transmission bevel gear is fixedly mounted on the outer wall of the first threaded cylinder; a second threaded rod is installed on the inner wall of the second threaded cylinder in a threaded mode, a sealing plate is rotatably installed at one end of the second threaded rod, and a second transmission bevel gear is fixedly installed on the outer wall of the second threaded cylinder. Through the structure, the impurity removal operation procedures are effectively reduced, the impurity removal operation steps are simplified, and the impurity removal efficiency is improved.

The utility model relates to lighting technical field, and disclose a rotatable LED lamps and lanterns, including shell subassembly, shell subassembly both ends are provided with rotation adjusting assembly, shell subassembly is provided with lighting assembly in, shell subassembly front end is provided with lamp shade, shell subassembly includes lamp house, lamp house is aluminium alloy shell and front end opening, utilize aluminium alloy good heat conductivity auxiliary heat dissipation, lamp shade fixed clamping in lamp house's front end opening department. The utility model discloses setting rotation adjusting assembly, utilize the handle to drive the rotation of the pivot axle body, thereby adjust the lighting angle of lamp house and lighting assembly, after adjusting, tighten the fastening nut, can the connecting screw rod be fixed in the arc -shaped groove, and then stabilize the lighting angle and fix, convenient operation and good fixed effect, solved the existing lamps and lanterns lighting angle inconvenient adjustment, the problem that fixed easy deviation.

The invention discloses an IGBT packaging material dielectric property and thermal resistance linkage testing device, which relates to the technical field of packaging material testing, is used for carrying out performance evaluation on an IGBT packaging material in intelligent power distribution switch control equipment, and comprises a testing box, the inner wall of the testing box is covered with a thermal insulation layer, the front surface of the testing box is provided with a testing cavity, and the testing cavity is provided with a thermal resistance test cavity. And a lower heat conduction base is arranged at the bottom of the test cavity. The temperature field and heat flow state of a packaging material sample can be actively and accurately controlled, the working temperature rise and heat dissipation conditions of a real IGBT module are simulated, meanwhile, the lower electrode plate and the upper electrode plate directly make contact with the sample and are connected to the broadband dielectric impedance spectrometer, and therefore the temperature rise and heat dissipation conditions of the IGBT module can be simulated while controllable thermal excitation is applied. Dielectric spectrum characteristics of a material can be measured in situ in real time, the temperature sensor directly monitors the temperature of a sample interface, and then thermal resistance testing and broadband dielectric property testing can be dynamically evaluated in the same sample, the same time and the same controlled thermal environment.

The utility model relates to the technical field of LED display structures, in particular to an efficient heat dissipation LED display structure which comprises a base material layer, a chip layer, an optical adjustment layer and a packaging protection layer, the base material layer is arranged at the bottommost layer, the chip layer is arranged at the upper end of the base material layer, the optical adjustment layer is arranged at the upper end of the chip layer, and the packaging protection layer is arranged at the lower end of the optical adjustment layer. The packaging protection layer is arranged at the upper end of the optical adjustment layer; the chip layer and the base material layer are connected in a bonding mode, and a gap position between the chip layer and the base material layer is filled with a reflective glue filling layer; the optical adjustment layer is attached to the surface of the chip layer; and the packaging protection layer is cured on the surface of the optical adjustment layer.

The utility model belongs to the field of photovoltaic technology, and discloses a photovoltaic junction box used for connecting four bus bars. The photovoltaic junction box comprises a box body, and a conducting strip, a first diode and a second diode which are arranged in the box body. The first diodes and the second diodes are distributed at intervals along the length direction of the box body, and the connecting end parts of the four bus bars extend into the box body and are conductively connected with the conducting strip; two of the four bus bars are distributed along the length direction of the box body, and the two bus bars distributed along the length direction of the box body are respectively staggered with the first diode and the second diode in the width direction of the box body. According to the photovoltaic junction box, the two bus bars distributed in the length direction of the box body are arranged to be staggered with the first diode and the second diode in the width direction of the box body, so that the two bus bars are prevented from being affected by the first diode and the second diode when the temperature is too high, and local high temperature of the bus bars is avoided; and the heat in the box body is uniformly distributed.

This utility model relates to the field of dyeing and printing wastewater detection, specifically to an alarm device for excessive concentration of dyeing and printing wastewater. The utility model includes a support frame with a flow-draining mechanism mounted on it. A cooling mechanism is fitted at the top of the flow-draining mechanism, and a detection tube is connected to the end of the flow-draining mechanism. A detection sensor is installed inside the detection tube, and a protective net is fitted around the sensor. A support tube is located at the top of the detection tube, with an alarm mechanism installed at its top. An outlet pipe is connected to the bottom of the detection tube. In use, wastewater from the wastewater tank is drawn in through the flow-draining mechanism. As the wastewater flows past the top of the flow-draining mechanism, it passes through the cooling mechanism, which cools the wastewater. After cooling, the wastewater enters the detection tube. The protective net filters and blocks large impurities in the wastewater, preventing damage to the sensor from collisions with flowing impurities and thus improving the accuracy of the detection results.

This utility model discloses a waterproof shell for an industrial tablet PC, including a shell, a bottom shell, and a front panel. The front panel has mounting holes for mounting a display screen. An annular groove is formed on the mounting surface of the bottom shell. An annular skirt is fixedly mounted on the mounting surface of the front panel. A sealing ring is fixedly mounted on the mounting surface of the front panel and is fitted onto the annular skirt. A heat-conducting component is provided on the shell, and a suspension support component is provided at the rear end of the shell. This utility model effectively prevents moisture intrusion by guiding the annular skirt with the annular groove and sealing it tightly with the sealing ring fitted onto the annular skirt, thus solving the problem of unstable waterproof performance of existing shells.

This utility model relates to the field of precooling technology and discloses a liquid nitrogen LNG two-phase precooling safety device, including two stainless steel base frames. A storage tank is mounted on the top of each of the two stainless steel base frames. A cooling mechanism is located on the left side of the storage tank for precooling the tank body. A pressure relief mechanism is located on the right side of the storage tank for depressurizing the tank body. An explosion-proof mechanism is located on the right side of the interior of the storage tank. An insulating support mechanism is located on the top of each of the two stainless steel base frames. The cooling mechanism includes a sealing cover, the right side of which is located on the left side of the storage tank. In this utility model, the sealing cover integrates the LNG low-pressure export pipeline, the precooling pipeline, and the liquid nitrogen pipeline, allowing the introduction of LNG and liquid nitrogen to achieve simultaneous precooling of liquid nitrogen and LNG. This reduces the cost and loss of single-medium precooling, avoids the risk of localized overcooling, and improves the precooling efficiency and safety of the LNG storage tank.

The invention provides a copolymerization modified shortened polyacrylonitrile-based carbon fiber pre-oxidation device, and relates to the technical field of heating oxidation equipment.The copolymerization modified shortened polyacrylonitrile-based carbon fiber pre-oxidation device comprises a heating pool, a treating fluid is contained in the heating pool, a material mixing pot is arranged in the heating pool, a shaking unit is arranged in the heating pool, and fiber filaments can be pressed into the material mixing pot through the shaking unit; a vibration unit is arranged in the mixing pot and can vibrate the treating fluid to enable the treating fluid to wash the fibers to be uniformly oxidized. Through cooperation of the shaking unit and the shaking unit, a double homogenization system for dynamically shaking fiber tows and actively shaking the fiber tows by the treating fluid is constructed, so that the treating fluid forms directional flow and continuously washes the fiber tows, and the inner and outer layers of the tows and single fibers can be in full contact with the treating fluid; the problems of large pre-oxidation degree difference of inner and outer layers of tows, serious skin-core structure and concentrated local heat release easily occurring in a traditional dipping device are solved.

The utility model relates to the field of detector chip packaging technology, specifically disclose a kind of chip packaging system of photon counting CT detector, including substrate, substrate is the middle layer of photon counting CT detector, the top of substrate is equipped with top layer sensor by connecting structure, top layer sensor is the top layer (sensor layer) of photon counting CT detector, the bottom of substrate is arranged with multiple ASIC chips by connecting structure, ASIC chip is the bottom layer of photon counting CT detector, the substrate of ASIC chip bottom (upper surface) is simultaneously as the substrate of photon counting CT detector, ASIC chip and photon counting CT detector adopt the same substrate setting, the bottom of substrate is equipped with flexible circuit board. The utility model is provided with a series of structures, quickly export the heat generated by ASIC and transfer to heat sink, realize the accurate temperature control of sensor, to low cost and process difficulty realize four sides can be spliced The photon counting detector that can realize relatively wide z direction coverage.

The present application relates to waste resource utilization, environmental protection catalytic material and atmospheric pollution control field, disclose a kind of porous ceramic SCR denitration catalyst, the porous ceramic SCR denitration catalyst includes porous ceramic carrier, and active component and promoter supported on the surface of porous ceramic carrier;Wherein, the active component contains lanthanum oxychloride;The promoter contains ytterbium oxide and erbium oxide;Raw material in preparation the porous ceramic carrier contains waste steel slag, attapulgite, activated carbon, nano iron powder and forming agent.The porous ceramic SCR denitration catalyst of the application has higher NO x removal efficiency, low cost, with broad market prospect.

The application provides a multi-chip stacked package structure and a preparation method thereof. The multi-chip stacked package structure comprises a first chip distributed on a substrate, a side surface of the first chip being covered by a first plastic package structure; a second chip stacked on the first chip, a side surface and a bottom surface of the second chip being covered by a second plastic package structure; and a heat dissipation structure comprising micro-flow channels located on both sides of the first chip and the second chip, the micro-flow channels penetrating a top surface of the second plastic package structure and extending to a bottom surface of the first plastic package structure, and side surfaces of the micro-flow channels being covered by the first plastic package structure and the second plastic package structure. The multi-chip stacked package structure can quickly conduct the heat generated by the chips to the outside of the overall package structure, avoid the accumulation of heat in the plastic package structure, and ensure the reliability and service life of the device.

The utility model provides a motor waterproof structure of a food material chopper, and belongs to the technical field of machinery. The problem that an existing chopper motor is poor in waterproof performance is solved. According to the food material chopping machine, the food material chopping machine comprises a machine base with an inner cavity and a motor vertically arranged in the machine base, the motor comprises an upper end cover and a rotor shaft, a vertically-penetrating through hole is formed in the machine base, the upper end of the rotor shaft sequentially penetrates through a center hole of the upper end cover and the through hole, and the waterproof structure comprises an oil seal arranged in the through hole. Sealing is formed between the rotor shaft and the inner wall of the through hole through an oil seal, a water retaining ring sleeves and is fixed on the rotor shaft, the water retaining ring is positioned between the oil seal and the upper end cover, and the water retaining ring is not in contact with the upper end cover; the inner side wall of the water retaining ring is tightly contacted with the outer wall of the rotor shaft to form sealing, and the outer diameter of the water retaining ring is larger than that of the center hole of the upper end cover. The waterproof performance of the motor can be enhanced.

This utility model discloses a high-efficiency venting structure for die-casting molds, relating to the field of mold technology. It includes: a fixed mold and a moving mold; the fixed mold has a cavity at the top center, and the moving mold has a mold base fixedly installed at the bottom, inserted into the cavity; a venting groove is located at the bottom center of the mold base, and a venting hole penetrating the mold base and the moving mold is located at the top of the venting groove; a venting assembly is located inside the venting groove; and a cooling assembly is fixedly installed at the top of the venting pipe. This utility model achieves automatic venting, preventing molten metal leakage and ensuring venting efficiency. It also extends the flow path of high-temperature gas within the venting stack. Combined with circulating cold water and heat dissipation fins in the water tank, it can quickly absorb gas heat, reduce the venting temperature, prevent direct venting of high-temperature gas from scalding operators, and reduce the impact on the workshop environment temperature.

The present application relates to the technical field of charging and replacing cabinets, in particular to an electric vehicle charging and replacing cabinet with multiple battery compartments, which comprises a charging and replacing cabinet shell, a heat dissipation channel is arranged in the vertical direction inside the charging and replacing cabinet shell, and L-shaped shunt channels are symmetrically arranged inside the charging and replacing cabinet shell, and the heat dissipation channel is in communication with the bottom of the L-shaped shunt channels. The double air duct structure of the heat dissipation channel and the L-shaped shunt channels can flexibly adjust the operating state according to the season: in high temperature, the air flow efficiency can be improved by reducing the angle of the drainage plate and increasing the area of the external air outlet to quickly lead out the heat of the dense batteries in the multiple charging compartments; in low temperature, the air can be preheated and dehumidified by the electric heater of the preheating assembly and the multi-tooth plate of the moisture-absorbing resin, and the action of increasing the angle of the drainage plate and reducing the area of the external air outlet of the adjusting assembly can lead the residual heat in the heat dissipation channel into the charging compartment, which can maintain the activity of the uncharged batteries and avoid local overheating of the charging components.

The utility model relates to the technical field of motor commutators, and discloses a motor commutator of an automobile glass lifter, which comprises a plurality of commutator sheets, heat dissipation fins are fixedly connected to insulation gaps formed among the commutator sheets, commutator sheet hooks are fixedly connected to the tops of the commutator sheets, and the commutator sheets are fixedly connected to the commutator sheet hooks. The outer walls of the commutator segment hooks are fixedly connected with arc-shaped flow deflectors, and the interior of the commutator segment is provided with a self-heat-dissipation assembly. The self-heat-dissipation assembly comprises a silver-plated coating, a chromium-zirconium-copper layer and a heat-conducting filler, the silver-plated coating is uniformly coated on the outer wall of the commutator segment, and the chromium-zirconium-copper layer and the heat-conducting filler are respectively arranged in the commutator segment. According to the utility model, a multi-stage heat dissipation structure is constructed, heat can be rapidly led out and dissipated, the working temperature is reduced, material aging is reduced, the operation stability of the motor is enhanced, the service life of the commutator is prolonged, and the performance and reliability of the motor are significantly improved.

The utility model discloses a power supply module with a protection structure, which comprises a power supply module, a joint is fixedly arranged at the front part of the lower inner wall of the power supply module, an installation cover is fixedly arranged at the upper end of the power supply module in a penetrating manner, a plurality of first through holes are formed in the upper part of the front end of the installation cover, and a second through hole is formed in the rear part of the upper end of the installation cover. A heat dissipation device is fixedly installed on the rear portion of the left end of the power module, and a heat conduction device is fixedly installed in the middle of the left end of the power module. According to the utility model, through the installation plate and the installation groove on the installation plate, an external connection wire can be guided, and after the external connection wire passes through the installation groove and is in butt joint with the wiring terminal, the external connection wire can be effectively limited and clamped through the anti-skid sleeve arranged in the installation groove and the plurality of anti-skid salient points on the inner wall of the installation groove, so that the external connection wire is prevented from being damaged. And the upper end of the mounting groove is also provided with a silica gel ring, so that the abrasion of the connection part of the external wiring and the mounting groove can be effectively reduced.

The utility model discloses a tower bottom oil filtering device for an isomerization dewaxing heavy vacuum tower, and relates to the technical field of tower bottom oil filtering appliances, the tower bottom oil filtering device comprises a raw material tank, three filtering mechanisms and a product tank, the side end of the raw material tank is communicated with the three filtering mechanisms through pipelines, and the other sides of the three filtering mechanisms are communicated with the product tank through pipelines; each filtering mechanism is composed of a backflow filtering tank and a blade type filtering tank, and a communicating pipeline is arranged between the backflow filtering tank and the blade type filtering tank. According to the utility model, the raw material tank, the three filtering mechanisms and the product tank are arranged, so that the tanks can be better connected through the pipelines, and the material circulation of the tanks is facilitated; therefore, the problem that the operation is inconvenient when the filter cartridge and the filter element need to be disassembled when the existing filter element is cleaned is solved through the backflow refiltration of the valve on the pipeline and the pump body control device.

The application relates to the fields of optics and fire rescue, and discloses a fluorescent conversion sheet with wavelength conversion function and a handheld smoke penetration imaging device. The fluorescent conversion sheet comprises, in sequence, a heat dissipation substrate layer, a mirror layer, a photonic crystal layer and a core-shell structure fluorescent layer. After short-wave near-infrared laser is incident, the core-shell structure fluorescent layer performs wavelength conversion; the mirror layer and the photonic crystal layer form an optical micro resonant cavity, and the unconverted laser is reflected back to the fluorescent layer for secondary conversion; and the heat dissipation substrate layer effectively suppresses the thermal quenching effect. The imaging device utilizes the fluorescent conversion sheet to efficiently convert the easily obtained short-wave near-infrared laser into middle-wave near-infrared laser with strong smoke penetration capability and safety to human eyes and emits the middle-wave near-infrared laser, and a receiving device containing a polarizer is used to image the target echo. Through systematic and synergistic optimization design, the conversion efficiency and thermal stability are greatly improved, excellent smoke penetration imaging effect is realized, and the safety and efficiency of fire rescue are improved.

The invention discloses waste battery recycling and discharging equipment which comprises a measuring table, a milling section discharging conveying belt and a stereoscopic warehouse cabinet and further comprises an adaptive distribution and adjustment structure, a discharging mechanical arm installation table arranged on the milling section discharging conveying belt, and a feeding and discharging mechanical arm installed on the discharging mechanical arm installation table. The discharging device comprises a battery discharging placement frame, a discharging module, a copper sheet, a heat dissipation structure, a discharging limiting structure and a double-channel temperature detection structure; the current distribution structure comprises a plurality of discharge cabinets, all the discharge cabinets are connected to the same terminal, the number of the discharge cabinets is in one-to-one correspondence with the number and positions of the battery discharge placement racks, an encoder of the measuring table is electrically connected with a feeding and discharging manipulator, and the feeding and discharging manipulator is electrically connected with the discharge cabinets. According to the invention, the battery can be discharged under the most suitable current in the corresponding three-dimensional bin, the discharging speed is extremely high, temperature monitoring is carried out in the whole process, and safe discharging is ensured.

The utility model discloses a flame -retardant heat -insulation waterproof moisture -permeable fabric, including polytetrafluoroethylene moisture -permeable membrane, first flame -retardant fiber water -jet felt and second flame -retardant fiber water -jet felt, polytetrafluoroethylene moisture -permeable membrane with first flame -retardant fiber water -jet felt between, through first point shape flame -retardant adhesive and stick together, first flame -retardant fiber water -jet felt with second flame -retardant fiber water -jet felt between, through second point shape flame -retardant adhesive and stick together, wherein, second flame -retardant fiber water -jet felt has multiple pinholes of array, to increase the moisture -permeability of fabric. The utility model discloses a flame -retardant heat -insulation waterproof moisture -permeable fabric, polytetrafluoroethylene moisture -permeable membrane, first flame -retardant fiber water -jet felt and second flame -retardant fiber water -jet felt three layer materials and stick together, second flame -retardant fiber water -jet felt has multiple pinholes of array, and the whole fabric heat protection performance (TPP) is good, and the moisture -permeability is high, and has the function of moisture absorption and sweat -releasing.

This utility model relates to the field of oil production technology and discloses an oil raw material tank, including a tank body, a top cover fixedly connected to the top of the tank body, a connecting seat fixedly connected to the upper surface of the top cover, an oil plug rotatably connected to the outer surface of the connecting seat, and an isolation groove provided inside the tank body. This utility model has the following advantages and effects: the bottom support base provides support for the tank body. Since the oil raw materials stored inside the tank for a long time may solidify, multiple heat-conducting pipes are installed inside the isolation groove. When the oil raw materials need to be discharged, the operator activates the heat-conducting pipes to heat the inside of the isolation groove, thereby gradually raising the temperature of the containing cavity and melting the stored oil raw materials. Furthermore, the heating pipes fixed in the bottom groove inside the bottom support base simultaneously heat the bottom, increasing the heating rate of the oil raw materials inside the tank.

The utility model provides a robot motor housing with a heat dissipation structure, and relates to the technical field of robot motor housings, the robot motor housing comprises a front housing, the outer walls of the two sides of the front housing are both provided with heat dissipation grooves, the outer walls of the two sides of the front housing are both provided with two connecting grooves, the outer wall of the upper end of the front housing is fixedly connected with heat dissipation fins, and the heat dissipation fins are fixedly connected with the heat dissipation grooves. A plurality of circulation grooves are formed in the heat dissipation fins, an internal element is movably connected to one side of the inner wall of the front shell, the outer walls of the two sides of the internal element are each connected with a heat conduction piece, a rear cover is movably connected to the sides, away from the front shell, of the heat conduction pieces, and four plug pins are movably connected to the outer wall of one side of the rear cover; the side, close to the front shell, of the internal element is connected with a driving rod. According to the utility model, the problems of equipment failure and short service life caused by poor heat dissipation due to insufficient heat dissipation channel design, material heat conductivity and heat conduction efficiency of the existing robot motor shell are solved.

This invention discloses a high-heat-dissipation, high-current variable vacuum capacitor, comprising a housing and a moving electrode assembly, a metal bellows, and a stationary electrode, all disposed within the housing. The housing includes an insulating cylinder, a moving end base, and a stationary electrode disk. The moving end base is provided with a metal connecting cylinder. The moving electrode assembly includes a moving sub-disk and moving electrodes fixed to the moving sub-disk. The metal bellows is sealed between the moving end base and the moving sub-disk. The stationary electrode is fixed to the inner end face of the stationary electrode disk. A metal conductive component is fixedly mounted on the moving electrode assembly. The metal conductive component has sliding contacts that elastically abut against the inner wall of the metal connecting cylinder using their own elasticity. These contacts maintain sliding contact with the metal connecting cylinder throughout the entire stroke of the moving electrode assembly moving axially, thereby forming a conductive and heat dissipation path in parallel with the metal bellows between the moving electrode assembly and the moving end base. This invention can increase the conductive and heat dissipation areas of the vacuum capacitor, reduce the operating temperature, and increase the current carrying capacity.

This invention discloses a passive heat removal device for a pool-type reactor and its arrangement method. The device includes an upper heat exchange system and a lower heat exchange system, each system comprising a hot-end heat exchanger and a cold-end heat exchanger, with a pipe connecting the two heat exchangers to form an internal circulation of the working medium. The hot-end heat exchanger is arranged inside the reactor water pool, and the cold-end heat exchanger is arranged outside the reactor water pool. Considering the deep-well structure with a large length-to-diameter ratio of the reactor water pool, the temperature differences at different pool depths, and the complex and compact arrangement of internal reactor components, the hot-end heat exchangers are arranged in layers utilizing the longitudinal space within the reactor water pool; the cold-end heat exchangers are arranged against the outer wall of the reactor hall building, and a chimney structure or cooling tower is constructed around them to enhance heat exchange. This invention utilizes heat pipe technology, and through the rational arrangement of the passive heat removal device, enables the device to quickly remove heat from the reactor water pool in an accident situation, preventing the pool water from boiling.

This application relates to a special optical fiber, comprising a core layer and an outer cladding layer arranged sequentially from the inside to the outside along the radial direction of the special optical fiber, wherein the core layer includes a silicon nitride layer. The special optical fiber provided by this application incorporates a silicon nitride layer, disposed within the outer cladding layer. Silicon nitride has excellent thermal conductivity, enabling rapid dissipation of heat accumulated within the core / cladding layer, preventing localized hotspots that could degrade fiber quality and increasing the damage threshold. Silicon nitride remains stable at temperatures above 1200°C in an inert atmosphere and is unlikely to react with other substances, completely solving the problem of polymer carbonization. In terms of mechanical and chemical protection, silicon nitride acts as a chemical barrier. The dense, non-porous structure of the silicon nitride film gives this special optical fiber resistance to salt spray and hydrogen sulfide corrosion. Silicon nitride is a more effective Compton scatterer than silicon dioxide, reducing gamma photons incident deep within the optical fiber and improving its irradiation performance.

The utility model relates to a kind of heat dissipation components for lithium battery roll core, heat dissipation component includes first heat dissipation film and second heat dissipation film, first heat dissipation film is clamped between two adjacent roll cores, and the two surfaces of first heat dissipation film along thickness direction are respectively attached with the surface of corresponding side roll core;Second heat dissipation film is located at the two sides of first heat dissipation film, and second heat dissipation film is attached to the inner wall of shell, and the shell is used to accommodate several roll cores.The heat dissipation component of the utility model adopts ultra-thin design, is directly attached to the inner wall of shell or clamped between adjacent roll cores, under the premise that not extra occupy the limited space inside battery, without affecting the compactness of roll core assembly, the heat generated by roll core is quickly exported to external heat dissipation system by efficient heat conduction.