2453 results about "Water cool" patented technology

The invention relates to an ice crystal evaporator and an ice crystal water cooling device producing from the same, belonging to the technical field of refrigeration. The ice crystal evaporator is characterized in that a liquid inlet channel is formed by an evaporator tube, a liquid inlet and a liquid outlet in a tubular casing; and the outer channel of the evaporator tube of the tubular casing is divided into more than one S-shaped channel forming a water return channel through a water inlet of a water divider and a water outlet of a water collector. The ice crystal water cooling device is characterized in that the return air inlet of the ice crystal evaporator is communicated with a compressor, a condenser, a liquid feeding valve, a dry filter, a liquid feeding electromagnetic valve anda thermostatic expansion valve in sequence, and then is communicated with the liquid inlet of the ice crystal evaporator; a cooling water inlet / outlet of the condenser is connected with a cooling tower in series; and a water inlet / outlet of the ice crystal evaporator is communicated with a water circulating pump and an ice crystal energy storage tank in series. The invention has the advantages ofhigh cooling efficiency, no icing and low cooling temperature and is suitable for production of energy storage central air-conditioning, marine fishing, seafood processing, fruit, vegetable or meat processing, and the like; the cooled medium is municipal water.

The invention discloses a directional heat dissipation power distribution cabinet with adjustable air deflectors, which relates to the technical field of equipment for power distribution cabinets and comprises a cabinet body and a heat dissipation unit arranged in the cabinet body. The heat dissipation unit comprises a directional heat dissipation assembly used for carrying out fixed-point jet cooling on key heating elements, an air guide assembly used for optimizing overall airflow organization in the cabinet, and a water cooling assembly used for carrying out pre-cooling on cooling airflow of the directional heat dissipation assembly. The directional heat dissipation assembly comprises a fan at least arranged on the top wall in the cabinet body, an air supply pipe communicated with an outlet of the fan, and an annular air pipe arranged in the power distribution cabinet and communicated with the air supply pipe. Through cooperation of the directional heat dissipation assembly and the water cooling assembly, air blown out of the air blowing pipe at the tail end of the telescopic air column is no longer ambient temperature air but low-temperature cold air cooled in advance through the liquid cooling system. According to the pre-cooling type directional air supply mechanism, the heat dissipation efficiency and the limit capacity of air cooling are greatly improved.

The invention discloses a gas target device for isotope production, and the gas target device comprises a seat body which is provided with a channel; the water-cooled jacket body is mounted on the seat body, and the water-cooled jacket body is provided with a water-cooled cavity for circulating a water-cooled medium; the target body is installed on the base body and comprises a target body, the target body is located in the water cooling cavity and is provided with a target cavity, and the target cavity, the channel and the accelerator beam leading-out port are sequentially arranged in the set direction. According to the gas target device for isotope production disclosed by the embodiment of the invention, the water-cooled jacket body is arranged for cooling the target body, so that the target body is prevented from being damaged due to overhigh temperature of the target gas, the target gas can receive beam irradiation with higher flow intensity, and the isotope yield is improved.

The utility model discloses an artificial climate chamber water-cooling seedling raising vehicle, a chassis comprises a bottom frame, a support is connected to the bottom frame, and trundles are connected to the bottom of the bottom frame; the supporting pieces are connected to the corners of the bottom frame; the multiple groups of clamping strips are arranged up and down, each group comprises two clamping strips, heat dissipation holes are formed in the clamping strips, and the two ends of the clamping strips are connected to the supporting pieces; the light guide plate is clamped between each group of clamping strips, and light guide points are arranged on the light guide plate; the light source is inserted into the clamping strip and irradiates the side part of the light guide plate; the water inlet pipe is connected to the supporting piece, and one end of the heat dissipation hole of the clamping strip communicates with the water inlet pipe; the water return pipe is connected to the supporting piece, and the other end of the heat dissipation hole of the clamping strip communicates with the water return pipe. Compared with the prior art, the circulating water cooling system enables the seedling raising vehicle to keep a proper temperature environment, damage to seeds or seedlings caused by too high temperature is avoided, and seed germination and seedling growth are facilitated.

The invention belongs to the technical field of additive manufacturing, and particularly relates to a strong electromagnetic pulse-ultrasonic auxiliary electric arc additive manufacturing platform. The platform body is provided with an upper substrate used for providing an initial plane for electric arc additive manufacturing; the water cooling device comprises a water cooling box used for containing cooling water, and the substrate is contained in the water cooling box; the base plate locking clamp comprises a positioning clamping table and a clamping device. The positioning clamping table and the clamping device are arranged on the two sides of the upper base plate and matched to form a fixing structure for fixing the relative positions of the upper base plate and the platform body. The welding gun head is connected with the six-axis mechanical arm and is used for carrying out additive manufacturing on the upper substrate; the clamping device and the welding gun head are arranged on the two opposite sides of the upper base plate in a spaced mode. And the clamping device is partially arranged outside the water cooling box. The clamping device and the welding gun head are arranged on the two sides of the water cooling box respectively, space interference between the clamping device and the welding gun head in the working process can be effectively avoided, meanwhile, a principle heat source of the clamping device can be guaranteed, and normal work of the clamping device is guaranteed.

The invention discloses a water-cooling pulsed high-intensity magnetic field coil, and belongs to the technical field of pulsed high-intensity magnetic fields. The coil adopts a laminated structure, each laminated sheet is provided with an opening and a boss, and a spiral structure is formed through electrical connection of the bosses. Each lamination is divided into a through-flow part, a water cooling part and a fixed part; the through-flow part is made of red copper, the water cooling part and the fixing part are made of stainless steel, and an integrated copper-steel composite structure is formed through welding. The water-cooling part is provided with water-cooling grooves welded and sealed by a cover plate; and the water-cooling grooves of the laminations are connected in series through water inlet and outlet holes to form a cooling flow channel. The fixing part is provided with a semicircular fixing hole used for limiting and flow guiding. And an insulating sheet is arranged between the adjacent laminations. The coil is pressed tightly through the upper and lower pressing plates and an insulated fixing stud. Through lamination partitioning and copper-steel compounding, the high-strength and efficient water-cooling capacity is achieved, and the problems of insufficient strength and cooling of the pulse high-intensity magnetic field coil under repetition frequency work are effectively solved.

The invention discloses an internally-inserted water-cooled magnet device for a high-field hybrid magnet. The internally-inserted water-cooled magnet device comprises a container assembly and a magnet coil assembly arranged in the container assembly. The container assembly comprises an upper barrel assembly, a container end cover, a hydraulic machine assembly, a center pipe assembly, an inner supporting assembly, a middle barrel assembly, a lower barrel assembly and an electric connecting assembly. The hydraulic machine assembly comprises a cylinder body, a piston, a check ring, a pressure equalizing pad, a first force transmission check ring, a first anti-rotation pin, a second force transmission check ring, a second anti-rotation pin, a first force transmission column and a second force transmission column. The axial force application device has the advantages that axial force application can be performed on the magnet coil assembly, the pressing force on the magnet coil assembly is improved, and the problems of tension fracture and damage caused by coil stress overrun due to overlarge radial expansion electromagnetic force of a magnet coil bit piece and an insulating piece are solved.

A liquid cooling device including a water cooling head, a heat dissipation module, and a two-phase cooling component. The water cooling head includes a base plate and a water cooling shell. An accommodating slot is defined on the water cooling shell. The heat dissipation module includes a heat sink set and a supporting plate. A perforation is defined on the heat sink set. The heat sink set is positioned on the water cooling head. The two-phase cooling component includes an evaporation section and a condensation section. The evaporation section is positioned in the accommodating slot, and the condensation section passes through the perforation. Therefore, the heat dissipation efficiency of the liquid cooling system is improved.

The application discloses a heat pipe heat sink welding process based on heat conduction and belongs to the technical field of welding. The welding equipment is composed of a vacuum box, a control box, an electromagnetic device, a heating plate, a control box, a vacuum straight-through pipe with a water cooling jacket, a water pipe, a vacuum variable-diameter cross pipe, a gas release valve, a vacuum valve, a condenser, a vacuum bellows, a vacuum pump, a baffle valve, a gas collecting pipe, a smoke hood, a liquid cooling source and a smoke purifier. The application has the advantages that the problems of product performance decline and even scrapping caused by the floating of the heat pipe in the traditional welding process are perfectly solved, the welding quality is improved, the vacuum pump is protected and the service life of the vacuum pump is prolonged, the process is simple and easy to implement, and the production cost can be greatly reduced.

The invention relates to gantry milling equipment for maintenance of a power battery pack, which comprises a gantry frame, which is composed of two base assemblies arranged in parallel and a cross beam assembly erected on the two base assemblies; the main shaft assembly is mounted on the cross beam assembly; the battery pack positioning assembly is arranged on the ground below the gantry frame and comprises a trolley assembly used for bearing and clamping a battery pack; the trolley assembly can move to the battery pack positioning assembly and achieve automatic locking. The main shaft assembly comprises a laser range finder used for detecting the surface height of the battery pack and can conduct follow-up milling according to the detection result. According to the invention, a quick-change scheme of the moving trolley and pneumatic zero-point positioning is adopted, so that quick positioning and clamping of the large battery pack are realized, the traditional hoisting and alignment time is greatly shortened, and the maintenance efficiency is greatly improved. According to the invention, the back water-cooling plate of the battery pack can be quickly milled, and the non-destructive disassembly of the battery cell is realized.

The invention provides ultrahigh-temperature fatigue test equipment for a large-size expansion joint. The ultrahigh-temperature fatigue test equipment comprises a loading system, a heating system, a cooling system and a pressurizing system, the loading system is composed of an execution mechanism, a guide mechanism, a load platform and a high-temperature pull rod assembly, and is used for applying a stable dynamic axial load; the heating system comprises a heating base plate, a low-temperature heating chamber provided with a transverse opening and closing mechanism and a high-temperature heating chamber provided with a vertical lifting mechanism, and rapid crossing of a material sensitization temperature area is achieved. The cooling system comprises a circulating water-cooling plate integrated on the heating chassis, a double-end water-cooling flange and a forced water-cooling jacket sleeved at the bottom of the high-temperature pull rod, and is used for blocking a heat conduction path; the pressurization system provides a protective atmosphere with the pressure fluctuation smaller than or equal to + / -10% through the gas circuit device. The equipment is suitable for testing the fatigue performance of the large-size expansion joint in an ultrahigh-temperature environment of 1000 DEG C, and meets the reliability evaluation requirements of materials such as nickel-based alloy and stainless steel.

The invention discloses an ultrasonic-annular water cooling synergetic thermosetting composite material repairing method and equipment, on the basis of coaxial annular water cooling, an annular cooling cavity with a variable contour and a structural design of a closed ring with a plane contour which can be circular, elliptical, waist-circular or polygonal are introduced, so that the inner side contour of a cooling ring can be more attached to a welding area. For a large-size or irregularly-shaped thermosetting matrix component repaired by adopting ultrasonic local fusion welding, the cooling zone can be tightly attached to the outline of a welding interface in the circumferential direction through the design, heat is effectively prevented from overflowing along a complex boundary, compared with a fixed circular or linear cooling structure, the range of a heat affected zone can be further narrowed, and the service life of the component is prolonged. And a high-temperature area in the thermosetting matrix is more limited near a welding interface, so that the overall temperature of the thermosetting matrix is always lower than the glass-transition temperature while sufficient melting and flowing of the thermoplastic patch are ensured, and resin degradation and interface strength attenuation caused by local overheating are avoided.

The utility model discloses a device for acquiring alloy gas-liquid phase equilibrium data under negative pressure. The device comprises a gas-liquid phase circulating unit, a negative pressure acquisition and control unit, a heat source acquisition and control unit, a circulating water acquisition and control unit and a product cooling unit, the device has the characteristics of simple structure, convenience in operation and capability of accurately measuring gas-liquid phase equilibrium data in a negative pressure state, a circulating water cooling device is only arranged in the gas-liquid phase circulating reaction tank, so that a sealing gasket is protected from being damaged, the air tightness of equipment is ensured, and the liquid phase reactor and the upper and lower ends of a condensation collection cover are surrounded by a heat insulation layer, so that the gas-liquid phase equilibrium data can be accurately measured. The problem that gas-phase substances are directly solidified at the bottom of the gas-phase condensation collecting cover in a solid state and cannot form circulating balance between gas and liquid phases is fundamentally solved, and the normalization of gas-phase and liquid-phase total substance components is achieved on the basis of the gas-phase and liquid-phase balance principle.

The invention discloses a container energy storage system for an electric automobile, and relates to the technical field of container energy storage systems, the container energy storage system comprises a box body, an outer box door and an inner box door which can be opened and closed are installed on the box body, an electrical cabinet installed in the box body is arranged between the outer box door and the inner box door, a hydraulic rod is fixed in the box body, and a hydraulic cylinder is arranged in the box body. And the output end of the hydraulic rod is fixed to a mounting frame, a cooling water tank is fixed to the rear side of the upper end face of the box body, and a battery pack is arranged in the mounting frame. According to the container energy storage system for the electric vehicle, the lifting motion of the battery cluster mounting frame serves as a trigger signal, when the temperature sensor monitors that the temperature of a certain battery cluster is too high, the controller only drives the hydraulic rod at the corresponding position to jack the mounting frame, and therefore the exclusive air cooling channel and water cooling circulation can be synchronously started; the precise heat dissipation effect of the battery pack at the corresponding position is achieved, huge energy waste caused by overall cooling of a traditional air conditioning system is effectively avoided, and the energy efficiency ratio of the system is remarkably increased.

The utility model provides a water-cooling high-temperature-resistant fan for an inner hole of a main shaft, which is characterized in that a water-cooling flow channel is processed in a motor shell, and a first water inlet and a first water outlet which are connected with two ends of the water-cooling flow channel are arranged in the motor shell; the spindle cooling water channel is arranged on the spindle center hole, and cooling water axially flows into the cooling water flow channel of the spindle inner hole from the water inlet annular cavity at the top end of the spindle and then radially flows out from the water outlet annular cavity. The water inlet annular cavity is provided with a second water inlet, the water outlet annular cavity is provided with a second water outlet, and mechanical sealing is adopted between the water inlet annular cavity and the main shaft and between the water outlet annular cavity and the main shaft to prevent leakage. According to the utility model, two water cooling runners are arranged, so that efficient and reliable cooling can be realized.

The invention relates to the technical field of lithium battery pole piece rolling, and provides a heat-based roller type regulation and control method and system for a lithium battery pole piece roller press. The method comprises the following steps: S1, establishing a roller finite element mechanism model; s2, performing simulation by using a roller finite element mechanism model; s3, performing thermocouple distribution preliminary screening based on the temperature comprehensive contribution degree; s4, redundant preliminary screening thermocouple distribution points are eliminated based on data clustering analysis; s5, determining an optimal thermocouple distribution point combination; s6, constructing a dynamic thermal field matrix; s7, constructing a data driving model; s8, obtaining a joint prediction thermal convexity through joint prediction; and S9, the power of the electromagnetic coil and the edge water cooling flow are adjusted. The system comprises a roller heating device, an edge water cooling device, a temperature sensing network, a control platform, a regulation and control execution unit and a lithium battery pole piece roller press. Through accurate prediction of the thermal crown of the roller, real-time dynamic compensation of the roller shape is realized, and the thickness stability of the pole piece is improved.

The invention discloses a high-current-carrying water-cooling magnet coil combined structure which comprises a hydraulic machine assembly, a coil A and a coil B, wherein the coil A and the coil B are connected in series. The hydraulic machine assembly comprises a cylinder body, a piston, a check ring, a pressure equalizing pad, a limiting block, a first force transmission check ring, a first anti-rotation pin, a second force transmission check ring, a second anti-rotation pin, a first force transmission column and a second force transmission column, the coil A and the coil B are electrically connected in series through an AB electric connecting plate, the first force transmission column is in insulated connection with the AB electric connecting plate, and the second force transmission column is in insulated connection with the coil B; and the electromagnetic coil between the coil A and the coil B is insulated through an insulating cylinder assembly. The device has the advantages that axial force application can be performed on the magnet coil assembly, the pressing force on the magnet coil assembly is improved, and the problems of tension fracture and damage caused by coil stress overrun due to overlarge radial expansion electromagnetic force of a magnet coil bit piece and an insulating piece are solved; the structure of the insulating cylinder assembly realizes high current carrying of the A coil and improves the magnetic field intensity of the water-cooled magnet.

The invention belongs to the technical field of wire production, and particularly relates to a production process of a 95MnNbA steel wire for an ultrahigh-strength traction rope, which comprises the following steps: 1) taking a 95MnNbA steel wire rod as a raw material; 2) drawing a semi-finished product: performing circulating water cooling on a winding drum and a die box of a wire drawing machine in the drawing process, and controlling the temperature of a die to be lower than 90 DEG C; 3) heat treatment: ensuring that the wire temperature is in a range of 925-935 DEG C, and keeping the lead bath temperature in a range of 550-560 DEG C; 4) pickling the steel wire after heat treatment; (5) hot galvanizing, wherein the zinc temperature is controlled within the range of 450-460 DEG C; 11-12 passes are adopted for drawing of a wire drawing machine, the single-pass compression ratio of the first pass is controlled to be 15%-17%, the total compression ratio is controlled to be 85%-92%, the average compression ratio of all the passes is controlled to be 16%-18%, and a special wire drawing die is used as a wire drawing die of the last three passes.

The utility model provides an injection molding device for a power battery structural member, which belongs to the technical field of injection molding devices and comprises an injection molding mechanism, a fixed mold, a movable mold assembled with the fixed mold, two driving cylinders for driving the movable mold to lift, a fixed frame for supporting the fixed mold, and a pushing cylinder fixedly mounted on the inner side of the fixed frame, the pushing plate is fixedly mounted at the output end of the pushing cylinder and is used for demolding the structural part; and the cooling mechanism comprises a water cooling part used for carrying out liquid cooling on the fixed mold and an air cooling part used for carrying out air cooling on the interior of the fixed mold. Through the cooperation of the water-cooling part and the air-cooling part, the cooling effect in the fixed mold can be effectively improved, the temperature of a structural part can be quickly reduced, the problem of low efficiency easily caused when a traditional injection molding device only depends on a water-cooling mode for cooling is solved, the cooling efficiency of the injection molding device is improved, and the production efficiency of the structural part is ensured.

The utility model discloses a graphite electrode forming cooling water inlet device which comprises a machine frame, a water storage tank fixed in the machine frame, an inner container concentrically sleeved in the water storage tank in the Z-axis direction and an arc-shaped hanging basket welded and fixed at one end in the inner container. A lifting assembly used for driving the upper concentric-square-shaped frame, the inner container and the arc-shaped hanging basket to slide in the Z-axis direction is installed on the outer wall of one side of the machine frame. A plurality of graphite electrode workpieces to be cooled in water in the same batch are placed in the arc-shaped hanging basket, the lifting assembly controls the upper concentric-square-shaped frame, the inner container and the arc-shaped hanging basket to be immersed in the water storage tank, so that the graphite electrode workpieces are cooled, and the lifting assembly drives the arc-shaped hanging basket to move upwards after cooling is completed. And the graphite electrode workpiece in the arc-shaped hanging basket is separated from the cooling liquid.

The utility model relates to the technical field of Christmas tree pendant thermoplastic production, in particular to a Christmas tree pendant thermoplastic forming rapid cooling device which comprises a transverse cooling type water supply assembly, and the outer surface of the upper end of the transverse cooling type water supply assembly is detachably connected with a high-flow-speed water cooling assembly. The transverse cooling type water supply assembly comprises a cooling liquid storage base, and the middle of the front end of the cooling liquid storage base is detachably connected with a high-flow-speed water supply pump. When the Christmas tree pendant cooling device is used, the cooling flow of cooling liquid is increased firstly, the contact area is increased, meanwhile, the length of the cooling pipe is reduced, the uniformity of the Christmas tree pendant thermoplastic part during cooling can be guaranteed, and the situation that the quality is affected due to uneven cooling is avoided; and the cooling work of the liquid is rapidly completed by prolonging the standing time of the high-temperature liquid in the pipeline.

The utility model discloses an electromagnetic damping vibration isolation device belongs to vibration control technical field. The utility model solves the technical problem of the magnetic field intensity fixed of electromagnetic damping vibration isolation device and coil heating easily leads to performance attenuation. The utility model discloses an electromagnetic damping vibration isolation device, including coil subassembly and conductor block. Coil subassembly includes coil and coil clamp. Coil clamp is held in the outer periphery of coil. Coil clamp includes clamp body and water cooling pipeline. The heat dissipation block is equipped on the clamp body, and the heat dissipation block extends along the radial direction of coil, and multiple heat dissipation blocks are evenly arranged around coil. The water cooling pipeline is surrounded in the clamp body. The conductor block is located between at least two groups of coil subassembly, and the magnetic pole of every two groups of coil subassembly is opposite, thereby making the conductor block can be subjected to electromagnetic damping force when producing vibration. The utility model discloses a vibration isolation device can cover the vibration control demand of multiple frequency bands, avoids coil overheat aging, improves the life of vibration isolation device.

The invention relates to the technical field of metal material production, in particular to a 20CrMnTiH steel banded structure control method based on non-recrystallization zone rolling. The method comprises the following steps: heating a continuous casting steel billet in a soaking section at the temperature of 1,160-1,200 DEG C; after descaling, carrying out rolling at 1120-1180 DEG C, and carrying out rough rolling and intermediate rolling; the intermediate billet is subjected to water cooling before finish rolling, the outlet temperature of the intermediate billet is controlled to be 850-930 DEG C, and the intermediate billet enters an austenite non-recrystallization area; and then finish rolling is carried out, and the temperature on a cooling bed is controlled to be 900-950 DEG C. According to the method, through the synergistic effect of'segregation reduction at a high soaking temperature 'and'grain refinement through rolling in a non-recrystallization region', the technical contradiction between bainite inhibition and banded structure improvement is successfully solved. After the method is implemented, the average grade of the banded structure of the 20CrMnTiH steel can be reduced from 1.55 grade to 0.99 grade, and the maximum grade does not exceed 1.5 grade, so that the structure uniformity is obviously improved, the quenching deformation of subsequent heat treatment is reduced, and the requirements of high-end customers are met.

The application discloses a microbial feed fermentation equipment and belongs to the technical field of feed processing. The equipment comprises a fermentation bin, a lifting and sliding assembly, a vibration and fluffing assembly, a bottom material gathering and turning assembly and a gas circulation and temperature adjusting assembly. The lifting and sliding assembly comprises a material guiding cylinder and a guiding seat, and a helical coil and a permanent magnet are cooperated to drive the guiding seat to move longitudinally. The vibration and fluffing assembly is arranged on the top of the bin, and a telescopic pipe, a connecting frame, a spring plate and a vibration frame are sequentially assembled, and airflow impact eccentric impellers are used to realize material vibration and fluffing. An arc-shaped collecting plate at the bottom of the bin can collect materials to turn up and down along the material guiding cylinder. A circulating pipeline is connected with the telescopic pipe and a gas outlet at the top of the bin, a pump body, a water cooling assembly and a heating assembly are arranged on the pipeline to realize closed loop temperature adjustment of the gas in the bin, and the gas circulation is linked with the material turning mechanism. The application can realize longitudinal material turning to eliminate stratification, airflow synchronous temperature adjustment and fluffing, uniform internal material temperature, stable closed anaerobic environment, adaptation to various feed fermentation, good fermentation effect and low energy consumption.

The invention discloses a thin-film capacitor inverter compatible with air cooling and water cooling heat dissipation, and belongs to the technical field of inverters, the inverter comprises an internal complete machine assembly, a compatible case and a cooling module, the cooling module comprises an air cooling structure assembly and a water cooling structure assembly; the internal complete machine assembly is used as an electrical function assembly of the thin-film capacitor inverter and is integrally installed in the compatible case. And the compatible case internally provided with the internal complete machine assembly is combined and mounted with different cooling modules to form the thin-film capacitor inverters with different cooling modes. According to the modular design, the compatible case can be combined with different cooling modules according to different application environments to form thin-film capacitor inverters with different cooling modes, and the adaptability of the thin-film capacitor inverters is improved.

The invention relates to the technical field of electroslag casting smelting, in particular to an arc striking device and an arc striking method for an electroslag casting end cover seat ring. Comprising an arc-striking crystallization mechanism which is provided with an arc-striking slagging unit and a supporting unit, and a first containing cavity with an upward opening is defined by the arc-striking crystallization mechanism; an arc striking slagging section and a variable cross-section transition section are arranged on the top surface of the arc striking slagging unit; the inner diameter of the variable cross-section transition section is in an expansion trend along the flowing direction of the slag bath; the end cover seat ring main body crystallization mechanism is provided with a second accommodating cavity with a downward opening; an arc striking electrode is arranged in the second accommodating cavity, a first electrode of the arc striking electrode is matched with the arc striking slagging section, and a second electrode of the arc striking electrode is matched with the variable cross-section transition section; a water-cooling heat dissipation unit is arranged between the arc striking slagging unit and the supporting unit, the arc striking slagging unit is made of a first material, the supporting unit is made of a second material, and the thermal conductivity of the first material is higher than that of the second material. In this way, the problems existing in the electroslag casting process of an existing end cover seat ring are solved.

The utility model belongs to the technical field of chemical equipment, and discloses a low-temperature dangerous chemical reagent storage cabinet. A low-temperature dangerous chemical reagent storage cabinet comprises a storage cabinet body, an equipment placement cabinet, a support, a cabinet door and a reagent placement table, the storage cabinet body is in a hollow shape with an opening in one longitudinal side, and the reagent placement table can be detachably installed in the storage cabinet body; the equipment placing cabinet is arranged below the storage cabinet body in a connected mode, cooling equipment can be placed in the equipment placing cabinet, and the support is arranged below the equipment placing cabinet in a connected mode. Through cooperative work of the heat absorber and the closed-loop water cooling system, rapid cooling is achieved, the low temperature in the cavity is maintained, the cooling device is suitable for chemical reagents sensitive to the temperature, the damping device effectively absorbs vibration of the cooling device, and collision between reagent bottles caused by vibration generated when the cooling device works is avoided.

The utility model relates to a kind of pipe clamp punch die, belong to stamping technical field, including cabinet, the cabinet top is fixedly connected with lower die holder, the lower die holder top is equipped with upper die holder, the upper die holder bottom is fixedly connected with upper convex plate quick-release limit component, the lower die holder top is fixedly connected with lower concave plate switching component, the cabinet surface is equipped with water cooling component.The pipe clamp punch die, through the cooperation of quick die changing upper convex plate quick-release limit component by slider, L type connecting rod and limit sleeve, semicircular punch can be quickly installed and disassembled, greatly shorten the die adjustment time of replacement.The lower concave plate switching component of multi-station switching adopts screw rod to drive multiple concave dies, the stamping of pipe clamp of different specifications can be realized on the same set of die, without replacing the whole die, water cooling component is circulated cooling to lower die holder and upper die holder respectively by first serpentine pipe and second serpentine pipe, effectively heat generated in stamping process is radiated, prolongs the service life of die.

The utility model discloses a water cooling clamping device of graphite furnace prefabricated rod of wire drawing tower, including three jaw chuck, three jaw chuck includes chuck body and three movable dog, and the chuck body is equipped with cooling runner A, and three movable dog all are cooling runner B, and cooling runner A and cooling runner B all are used for the cooling water of going in cooling chuck body and movable dog and carry out temperature reduction. The present application can effectively prevent the chuck body and movable dog and mutually lock tightly because of the thermal expansion deformation, greatly reduce the stick time, improve production efficiency.