36results about How to "Solve insulation problems" patented technology

The invention belongs to the technical field of non-ferrous metal profile forming, and relates to a shaping method and device for titanium and titanium alloy arc-shaped profiles. According to the shaping method, the problems of large curvature radius change, profile distortion, poor flatness and the like caused by rebound of the bent titanium and titanium alloy arc-shaped profiles are solved through hot shaping treatment, and the annealing device is used for annealing treatment to solve the problem of secondary deformation of the arc-shaped profiles in the annealing process of eliminating residual stress. Before the shape correcting machine is used for correcting the shape, the arc-shaped profiled bar is firstly placed in a space and is heated to a preset temperature on line, so that the problems of high resistance, poor plasticity, high resilience and difficulty in deformation of the profiled bar in a normal temperature state are solved, and meanwhile, various problems caused by secondary transfer of a hot material after offline heating and clamping and re-positioning of the arc-shaped profiled bar are also solved. According to the annealing device, the arc-shaped profiled bar, the bottom plate and the fixing block assembly form a coating whole, so that the possibility of secondary deformation of the arc-shaped profiled bar in the annealing process of eliminating residual stress is effectively avoided.

The invention relates to the technical field of winding wires, and provides a damp-proof high-voltage submersible motor winding wire and a preparation method thereof.The damp-proof high-voltage submersible motor winding wire sequentially comprises a conductor and insulating layers from inside to outside, the conductor is a round copper wire, the insulating layers comprise the first insulating layer, the second insulating layer and the third insulating layer, the first insulating layer wraps the conductor, the second insulating layer wraps the first insulating layer, and the third insulating layer wraps the second insulating layer. The third insulating layer wraps the outer side of the second insulating layer, the first insulating layer is a polyimide film I, the second insulating layer is fluoroplastic, and the third insulating layer is a polyimide film II. According to the technical scheme, the problem that in the prior art, a submersible motor winding wire is poor in insulativity and mechanical performance is solved.

The invention provides a simulated guide tube rod and a simulated nuclear reactor, and the simulated guide tube rod comprises a core rod which comprises a boss, a middle rod, a connector and a core rod groove; part of the core rod is located in the outer pipe, the outer pipe comprises a pipe part and an outer pipe groove for containing the boss, and first gaps are formed between the inner wall of the pipe part of the outer pipe and the outer wall of the core rod and between the inner wall of the outer pipe groove and the outer wall of the core rod; the end plug comprises a first part and a second part, the first part is matched with the core rod groove, the second part is located below the outer pipe, and the diameter of the second part is larger than or equal to that of the outer pipe; the sealing filler, the inner wall of part of the outer pipe groove, the boss and the second part jointly form a first space, and the sealing filler is located in the first space and suitable for sealing the first space. The simulated guide tube rod and the simulated nuclear reactor provided by the invention can help to solve the problem of insulation between the guide tube rod and a peripheral electrified part, and the performance of the guide tube rod is further improved.

The invention discloses an electrode insulation water-cooling assembly used in a radiation heating experiment module and an installation method, and relates to the field of material radiation heating tests, and the electrode insulation water-cooling assembly mainly comprises a metal hose, a flange, an insulation part and a metal pipe sleeve. One end of the metal hose is welded with the flange, the flange is connected with the insulating part through a bolt, the insulating part is connected with the metal pipe sleeve through a bolt, and the insulating part is respectively subjected to end face sealing with the flange and the metal pipe sleeve. The structure is simple, installation and disassembly are convenient, the insulation problem of electrode water cooling in the radiation heating experiment module can be well solved, and the risk that a metal water pipe makes contact with other parts to cause electrification is avoided.

A small-radius curve joint insulation device with guard rails comprises a spacer block lapped between two butt-joint steel rail interfaces, an insulation inner clamping plate is arranged between the spacer block and a steel rail, an insulation outer clamping plate opposite to the insulation inner clamping plate is arranged on the outer side of the steel rail, and a spacer piece is arranged between the butt-joint steel rail interfaces; the I-shaped section insulation is combined with the spacer block and the groove-shaped insulation, so that the problems of pulling deformation and insulation failure caused by uneven stress of double-section insulation are solved; the insulation assembly can be better attached to a track structure, stress is effectively dispersed, the impact resistance is improved, long-term stable operation is ensured, and the requirements of high-load and high-frequency train operation are met. According to the device, the mechanical strength of the insulation assembly is improved, the problems of deformation and aging caused by long-term use are reduced, the service life of equipment is prolonged, the stability and reliability of a track circuit are further improved, and safe and efficient operation of railway transportation is ensured.

The invention relates to an infrared thermal imaging electric power meter which comprises meter internal components, a meter shell and external terminals on the meter shell, and the meter internal components comprise a signal measurement function board, a voltage measurement device, a current measurement device, a switch state measurement device and an infrared thermal imaging temperature measurement device. The instrument shell is provided with a plurality of external terminals, the devices are connected to a signal measurement function board through an IIC bus, the instrument shell is provided with a liquid crystal display, the liquid crystal display is connected to the signal measurement function board, and the external terminals comprise a voltage measurement terminal, a current measurement terminal, a switching value measurement terminal and an infrared thermal imaging temperature measurement terminal. According to the method, infrared thermal imaging is adopted, contact is not needed, an imaging mode is adopted, the temperature of an area can be recognized like a picture, and a point position with the higher temperature can be screened out. Insulation and electrical creepage between electrical equipment under high voltage are solved through non-contact temperature measurement, the service life is longer, and the device is not affected by the environment.

The 10kV high-voltage multi-unit isolation auxiliary power supply comprises a first-stage circuit, a second-stage circuit, a third-stage circuit and a fourth-stage circuit, wherein the first-stage circuit, the second-stage circuit and the fourth-stage circuit are respectively composed of an NCP1396 control circuit, a current sampling circuit, a half-bridge LLC input side main circuit and a magnet ring transformer output rectification filter circuit; the half-bridge LLC input side main circuit is composed of a DC power supply DC1, an upper MOS tube Q3, a lower MOS tube Q4, a resonant capacitor C1, a resonant inductor L4 and a magnet ring transformer TR3. The current sampling circuit is composed of a current detection resistor R1 and an RC filter circuit. The NCP1396 control circuit is used for providing complementary and isolated driving control signals for grid electrodes of the upper MOS tube and the lower MOS tube, the input side of the magnetic ring transformer is connected with a turn of high-voltage 10kV insulated wire in series to serve as a primary winding, power supply of a high-voltage unit power source is met, meanwhile, the requirement for ultrahigh-voltage isolation is met, the requirements for voltage-withstanding insulation and power supply between units are met, and the service life of the high-voltage unit power source is prolonged. And the volume and the cost are well balanced.

The utility model belongs to the technical field of aftertreatment, and particularly relates to a heat insulation structure of a detachable V-shaped hoop for tail gas aftertreatment. The heat insulation structure comprises a first heat insulation cover and a second heat insulation cover, one ends of the first heat insulation cover and the second heat insulation cover are connected through a connecting shaft, and the other ends are movably connected through a support and a buckle. Heat insulation pasting cotton is pasted on the inner sides of the first heat insulation cover and the second heat insulation cover. The whole heat shield is of a metal ring structure, and the requirements for strength and attractiveness are met; a connecting shaft and a buckle are arranged, so that the V-shaped hoop is convenient to mount and dismount; the bolt avoiding cover is arranged and can be matched with a post-processed V-shaped hoop; cotton is attached to the inner layer, and the heat insulation performance is enhanced; the heat insulation problem of the V-shaped hoop of an existing post-treatment product can be solved, the advantages of being good in durability, attractive in appearance and the like are achieved, and meanwhile the cost and detachability of the hoop heat insulation cover can be considered.

The invention relates to the technical field of winding wires, and proposes an insulated submersible motor winding wire and a preparation method thereof. The insulated submersible motor winding wire includes a wire core, a film layer, and an insulating layer from the inside to the outside. The wire core is composed of a conductor and a coating. The conductor is a copper wire, the coating is a nickel coating, the film layer is a polyester film, and the insulating layer includes the following raw materials by weight: 60-70 parts of polyethylene, 20-30 parts of filler, 1-3 parts of silane coupling agent, 1-2 parts of lubricant, and 2-3 parts of antioxidant; the filler includes bentonite and modified alumina, and the modified alumina is obtained by modifying alumina with nitride. Through the above technical scheme, the problem of poor mechanical properties and insulation of the winding wire in the related art is solved.

The utility model discloses a battery box and an automobile, and relates to the technical field of automobiles, the battery box comprises a box body and a heat preservation bottom protection plate, the box body is provided with an installation cavity, the installation cavity is used for installing a battery, and the bottom of the box body is provided with a heat exchange opening communicated with the installation cavity; the heat preservation bottom protection plate is detachably connected with the box body so as to cover or open the heat exchange opening. According to the technical scheme provided by the utility model, the problem of contradiction between heat dissipation and heat preservation of the battery system can be effectively solved.

This invention belongs to the field of semiconductor device fabrication technology and discloses a method for fabricating high-temperature, high-power-density SiC power semiconductor devices. The invention has low equipment requirements: due to the short sintering time, few sintering cycles, and all planar sintering, a common hot press and heating table can be used for sintering in air, eliminating the need for expensive nitrogen-filled pressurized silver sintering furnaces. The process is simple and fast: only two sintering cycles, two welding cycles, one bonding cycle, and one potting cycle are needed to complete the fabrication of a double-sided cooled 250°C high-temperature SiC power semiconductor device, including a heat dissipation base plate and insulating potting. A low-cost solution for 250°C high-temperature applications: expensive materials such as nano-silver are used only in some key locations. Utilizing thermal diffusion characteristics, high-temperature solder is used instead of nano-silver at the heat dissipation base plate-substrate welding interface where heat flow is fully diffused. This avoids the problems of high difficulty and high material cost associated with large-area silver sintering without significantly reducing heat dissipation performance.

The invention discloses a pure gas type direct current wall bushing which comprises a current-carrying conducting rod, a connecting cylinder and a shielding cylinder, the connecting cylinder is connected with an outdoor insulator and an indoor insulator, the connecting cylinder is provided with an inner flange, the connecting cylinder, the outdoor insulator and the indoor insulator jointly form a containing space, and the containing space is filled with insulating gas with preset air pressure. The shielding cylinder is located in the containing space, the middle of the outer surface of the shielding cylinder is connected with the inner flange, the current-carrying conducting rod is located in the containing space and penetrates through the shielding cylinder, one end of the current-carrying conducting rod is connected with the outdoor current-carrying terminal, the other end of the current-carrying conducting rod is connected with the indoor current-carrying terminal, and the indoor current-carrying terminal or the outdoor current-carrying terminal is connected with the head cover plate through the telescopic pipe. The pure gas type direct current wall bushing provided by the invention can better solve the contradiction between the insulating property and the thermal property.

An integrated combined support below an electric automobile cab comprises a support body, an electromagnetic switch support, a seven-way fuse box support, a low-voltage distribution box support, a battery management unit support, an all-in-one controller support and an inflation pump support. An all-in-one controller, an electromagnetic switch, a low-voltage distribution box, a storage battery, a seven-loop fuse box, a battery management unit, an air conditioner two-in-one device, a steering oil pump and an inflating pump are installed into a whole, the integration and modularization degree is high, high-voltage and low-voltage accessories are integrally arranged below a cab, a support body is of a layered structure, space is saved for arrangement of a power battery, and the structure is simple. The combined support and parts can be subpackaged off line and integrally assembled on the frame, installation is convenient and fast, the assembling efficiency is improved, movement of the storage battery can be effectively limited, a special storage battery limiting structure does not need to be arranged, the structure is simplified, and assembling and using are convenient.

This application relates to the field of cable protection pipe technology, and in particular to a low-temperature impact-resistant CPVC cable protection pipe, which includes a protection pipe body, an insulation layer, and a circulation mechanism. An impact-resistant mechanism is fixedly connected to the inner side of the protection pipe body. A cable body is inserted through the insulation pipe body inside the impact-resistant mechanism. A heat exchange mechanism is fixedly connected to the outer surface of the insulation pipe body. The circulation mechanism is located at the top of the protection pipe. This technical solution, through its heat exchange, circulation, impact resistance, and heat recovery structure, combined with a composite insulation layer and a suitable heat exchange medium, efficiently absorbs solar energy and recovers waste heat from the cable, continuously insulating the protection pipe body day and night, resisting external impacts, preventing low-temperature embrittlement and cable overheating, adapting to different low-temperature environments, reducing heat loss and energy consumption, and solving the problems of existing CPVC cable protection pipes such as poor resistance to low temperatures, weak impact resistance, and limited adaptability.

A railway line center inspection vehicle includes a traveling trolley, a gauge ruler, an ultra-high detector and a prism measuring device. The gauge ruler includes a bottom plate and two racks. An intermediate gear is arranged at the center of the bottom plate. One rack is arranged on one side of the intermediate gear and a scale is arranged on the rack. Another rack is arranged on the other side of the intermediate gear and a pointer is arranged on the rack. The rack meshes with the intermediate gear. A spring is arranged at one end of the rack. An electric insulating bearing is connected to the other end of the rack. The electric insulating bearing contacts the inner side of the rail. A support frame is arranged on the bottom plate and the rack. The support frame is connected to the traveling trolley. The prism measuring device includes a prism, a prism rod and a pressure block. One end of the prism rod is connected to the prism. The other end of the prism rod is connected to the pressure block. The pressure block is fixed on the bottom plate at a position directly above the intermediate gear. This design not only has high measurement accuracy and high work efficiency, but also has low cost.

This utility model relates to the field of building block technology and discloses an H-shaped earthquake-resistant and thermally insulating block, comprising a block body with an H-shaped cross-section. The block body has an H-shaped cavity inside, which is filled with an insulation layer. The block body includes two parallel wing plates and two parallel web plates, which are perpendicular to each other. The two ends of each web plate are connected to the corresponding wing plate via L-shaped connecting plates. This utility model solves the problem of insufficient earthquake resistance and thermal insulation performance of traditional blocks through the synergistic design of the H-shaped concrete block body, the vitrified microsphere insulation layer, and the earthquake-resistant connectors. The block has a simple structure, is easy to construct, and is suitable for various building scenarios, offering significant economic and social benefits.

The spreading cooling bed comprises a cooling bed main body, a cooling bed frame, a turnover door and a sieve plate, a humidifying air blowing channel is arranged below the cooling bed main body, a supporting frame and a heat preservation device are arranged below the sieve plate of the cooling bed main body, and the heat preservation device is a water heating system composed of a water heating box, a water heating pipe and a hot water circulating pump. And an air blower and a humidifier are arranged at an air inlet of the humidifying and blowing channel. The multifunctional spreading and cooling bed for wine making has the functions of spreading and cooling and saccharifying, the labor intensity and cost of wine making workers are reduced, and the quality and yield of white wine are guaranteed.

The invention discloses a glue-free conical high-voltage pulse transformer secondary coil and a preparation method thereof, and solves the technical problems that electromagnetic wires are easy to discharge due to the adoption of curing glue in the existing conical high-voltage pulse transformer secondary coil, and the operation stability of the secondary coil is poor. The secondary coil is only composed of the paper base cylinder and the coil winding layer, the structure is simpler, the winding process is more convenient, and uncertainty caused by human factors is reduced; the coil winding layer and the miniature spiral wire groove are mutually embedded, so that accurate arrangement, uniformity and stability of electromagnetic wires are realized, no gelling is realized, and the problems of non-uniformity of an electric field and a closed air gap possibly caused by introduction of resin glue and insulation possibly caused by introduction of the resin glue are avoided.

The utility model relates to fresh milk preservation device technical field, and disclose a kind of for fresh milk distribution's fresh-keeping device, including box and box cover, the inside of the box is provided with compression mechanism;First sliding base and second sliding base are embedded in guide rail place and use the both ends of buckling frame to close guide rail, and make two sides first sliding base and second sliding base vertical support temperature insulation board, fresh milk bottle will be gathered together under the action of support spring by temperature insulation board, effectively solve the problem that box space is idle due to taking fresh milk bottle, to reduce the heat preservation effect of box, install auxiliary plate on second sliding base, and install balance rack on first sliding base and auxiliary plate, wherein, two balance racks are respectively engaged in the two sides of balance gear, the distance between two temperature insulation boards and pivot is consistent, ensure that two temperature insulation boards can move equidistantly reversely, effectively avoid that fresh milk bottle is unevenly distributed in box and affect the balance of box.

The utility model discloses a reinforced cable head, including the cable head, the plug no. 2 is fixedly connected in the cable head, the one end fixedly connected with the fixed plate of the cable head away from the plug no. 2, be provided with the fixed assembly in the fixed plate, be provided with the reinforcing dustproof subassembly on the cable head, the one end of cable head away from reinforcing dustproof subassembly is provided with quick -wiring assembly, and the fixed assembly includes a plurality of fixed boxes of screw thread connection on the fixed plate, the fixed column fixedly connected in the fixed box. The utility model through the arc plate of spring drive is adapt to the clamping cable, and the sealing package of heat shrink sleeve is combined, effectively solve the contact resistance rise and insulation ageing problem that traditional crimping / welding caused because of contact loose or sealing failure, the threaded locking design of plug no. 1 and fixed ring realizes the quick plugging of cable head and equipment, solves the problem of traditional crimping or welding operation complicated, low efficiency, promotes the speed of field maintenance.

The invention provides a thermal insulation intermediate material for building interior and exterior walls and a preparation method thereof. The silicon-based composite material is prepared by synthesizing a silicon-based material and an inorganic material and is in a regular porous shape. The intermediate material has the advantages of high temperature resistance (more than 1000 DEG C), light weight (160 Kg / m < 3 >), heat conductivity coefficient of 0.027-0.038 w / mk, good heat insulation performance and fireproof performance, excellent film-forming property, easiness in blade coating and convenience in construction, and is widely applied to heat insulation scenes of inner and outer walls of buildings.

This invention belongs to the field of alloy material preparation, specifically relating to a lightweight, high-strength TiAlNbB multi-principal element alloy plate and its preparation method. Using a common metallurgical TiAlNbB multi-principal element alloy ingot as the billet, this invention prepares large-size TiAlNbB multi-principal element alloy plates with DP microstructure through hot isostatic pressing and direct cladding hot rolling. Then, a short-time electric pulse heat treatment process is used to prepare large-size TiAlNbB multi-principal element alloy plates with a uniform and fine NF structure.

The invention belongs to the technical field of superconducting, and relates to an insulation enhanced superconducting cable and a preparation method thereof. The method comprises the following steps: firstly, reinforcing a superconducting wire rod through a NiCoCr / Cu composite matrix, and carrying out multi-channel coating and on-line monitoring by adopting BN modified polyimide paint to form a uniform insulating layer; and then wrapping and hot pressing are carried out by using a B-stage epoxy-impregnated aromatic polyamide tape to construct an insulation enhanced structure. Stranded cable forming is carried out through tension control and a numerical control positioning die, and the composite cable is formed by combining the core wire and the multiple layers of insulation reinforced wires. Finally, through secondary wrapping and pretension braiding protection, the superconducting cable with the coverage area larger than or equal to 99.9% and the void ratio smaller than 1% is obtained, the withstand voltage between strands is larger than 5000V, the withstand voltage between cables is larger than 7000V, the mechanical stability and the thermal management performance are remarkably improved, and the superconducting cable is suitable for being applied to high-field magnets and fast pulses.

The application discloses a self-adaptive air-filled inner heat preservation system for a greenhouse, which comprises a support fixing device fixed to the greenhouse, an air-tight heat preservation film body comprising an upper film and a lower film, and an edge sealing reinforcing structure arranged at the periphery of the air-tight heat preservation film body, and a gas pressure regulating device connected to the air-tight cavity. The application relates to the technical field of facility agriculture and animal husbandry environment engineering, and realizes dynamic adaptation of heat preservation performance and light transmission performance through double-mode gas pressure regulation. In a heat preservation period, the air-filled pressure is maintained, the excellent heat insulation performance of the static air layer is utilized to realize super-high air-tight heat preservation, and heat loss is effectively reduced. When solar radiation heat is needed to be obtained, the air cavity pressure is reduced, the film body is adhered to reduce the thickness of the air layer, and the light transmission rate is improved, so that the inherent contradiction that heat preservation and light collection cannot be simultaneously realized in traditional heat preservation facilities is solved.

The invention provides an assembly type heat preservation, waterproof and decoration integrated concrete external wall panel, relates to the field of assembly type wall panels, and aims to solve the problems of low waterproof and heat preservation construction efficiency and a large amount of on-site wet operation of an external wall at present, the prefabricated integrated concrete external wall panel is adopted, and the external wall panel is connected by arranging a steel bar truss; the connecting strength between the concrete inner acanthus and the concrete outer acanthus is enhanced, the problem that the overall structural stability of the external wall panel is insufficient is effectively solved, the heat preservation layer and the waterproof layer are reasonably arranged between the concrete inner acanthus and the concrete outer acanthus and on the outer side of the concrete outer acanthus, the heat preservation layer guarantees the indoor thermal environment, and the waterproof layer effectively prevents external moisture from permeating; the heat-insulating layer and the waterproof layer cooperate to play a role, the problem that heat-insulating and waterproof functions are difficult to achieve at the same time is solved, the decorative layer is completed on the outer side of the waterproof layer in a factory at a time, and therefore the fabricated heat-insulating, waterproof and decorative integrated concrete external wall panel is formed.

The application provides a relay with high-low voltage insulation structure, and relates to the technical field of relays.The relay comprises a high-voltage system, a low-voltage system and a fixed foot.The high-voltage system comprises an upper armature and an insulation frame, and the upper armature and the insulation frame are fixedly arranged.The low-voltage system comprises a magnetic pole plate.The fixed foot is fixedly connected with the insulation frame and the magnetic pole plate respectively, and the fixed foot is made of metal material.The relay with high-low voltage insulation structure provided by the application fixes the upper armature by using the insulation frame, realizes the insulation arrangement between the upper armature and the magnetic pole plate by using the insulation frame, and realizes the insulation isolation between the high-voltage system and the low-voltage system, thereby solving the insulation problem between the high-voltage system and the low-voltage system.The insulation frame is fixedly connected with the magnetic pole plate through the fixed foot made of metal material, the fixed foot made of metal material can realize higher connection strength with the magnetic pole plate, thereby ensuring the connection effect between the insulation frame and the magnetic pole plate and ensuring the connection firmness of the insulation frame and the upper armature during the use of the relay.

The utility model relates to the field of catering industry, and discloses a heat preservation type double-hole cooking stove convenient to clean, which comprises a shell, an operation table is fixedly connected to the upper side of the inner wall of the shell, a water pump is fixedly connected to the bottom end of the operation table, a first water guide pipe is fixedly connected to the output end of the water pump, and a second water guide pipe is fixedly connected to the input end of the water pump. A water spraying pipe is fixedly connected to the top end of the first water guide pipe, a plurality of water spraying openings are formed in the rear lower side of the water spraying pipe, and a motor is fixedly connected to the upper side of the left end of the shell. According to the utility model, under the mutual cooperation of the operation table, the motor, the baffle plate, the filter screen, the garbage port, the garbage inner frame, the garbage outer frame, a sewer pipe I, a sewer pipe II, a threaded rod, a drainage groove, a water spraying pipe, a water tank inner groove, a water pump, a water guide pipe I, a fixing ring, a water tank shell, a water supply pipe, a water guide pipe II and the like, the water spraying port and the scraper blade are driven to work; the effects of cleaning and heat preservation are achieved.

The invention discloses a windproof and heat-insulating device for pitaya planting, and specifically relates to the field of pitaya planting. The device comprises a planting shed body, a windproof component is arranged on the surface of the planting shed body, a heat-insulating device is arranged inside the planting shed body, closed shed boards are arranged at both ends of the planting shed body, and inlet and outlet slots are opened on the closed shed boards, the windproof component comprises a closed film layer, a winding motor, a winding component, a cleaning component, a scraping component, a double-sided toothed chain belt and a linkage component, one end of the closed film layer close to the land along the direction of the shed can be detachably mounted on the winding component, two winding motors are arranged and symmetrically fixed on extension brackets at both ends of the planting shed body, the invention effectively prevents wind by arranging the closed film layer, and pitaya is planted in the windproof shed to prevent wind, while effectively solving the problem of heat preservation, avoiding freezing to death of pitaya seedlings due to large temperature difference, and improving the planting survival rate.

The utility model relates to the technical field of single crystal growth, in particular to an electrode column and a single crystal furnace, the electrode column comprises an electrode column body and an insulating coating positioned on the outer side of the electrode column body, and the insulating coating is fixed on the outer side of the electrode column body; an installation hole is formed in the bottom in the single crystal furnace, the installation hole is perpendicular to the surface of the bottom of the single crystal furnace, and a heat preservation layer used for surrounding the outer portion of the electrode column is further arranged in the installation hole, so that a gap does not need to be reserved between the electrode column and the heat preservation layer in advance. The insulating coating avoids the heat leakage phenomenon caused by an overlarge gap between the electrode column and the heat preservation layer while avoiding electric leakage at the side part of the electrode column, avoids heat loss of the single crystal furnace, reduces the heating time before the single crystal furnace works, saves the power consumption cost, and solves the problem of energy conservation.

The utility model relates to the technical field of molten salt pumps, and discloses a small-flow high-temperature molten salt pump which comprises a pump body, a pump shaft is connected in the pump body in a sliding mode, a partition assembly is arranged on the outer wall of the pump shaft and comprises a first hollow ring and a second hollow ring, and the first hollow ring and the second hollow ring are both connected to the outer wall of the pump shaft in a sliding mode. The first hollow ring and the second hollow ring are both filled with heat conduction oil, one side of the first hollow ring is fixedly connected with a connecting block, one side of the connecting block is fixedly connected with a liquid storage bin, and the side wall of the first hollow ring and the side wall of the second hollow ring are provided with disassembling and assembling assemblies which are in bilateral symmetry. According to the utility model, heat conduction oil is firstly poured into the hollow ring I and the hollow ring II by an operator, and the heat conduction oil is circulated through the output end and the input end of the circulating pump, so that the effect of isolating heat transfer is achieved, the problems of insulation aging and lubrication failure caused by overheating of the motor are solved, and the operation stability of equipment is improved.