28results about How to "Reduce cooling area" patented technology

The utility model provides a steel brick composite flange brick for forming rolled glass, which is arranged on two sides of the top surface of a lip brick, a calender is arranged behind the lip brick, the calender comprises an upper calendering roller and a lower calendering roller, the steel brick composite flange brick comprises a flange brick body, a top end part a and a bottom end part b, cambered surfaces arranged at the upper part and the lower part of the tip part a are respectively matched with the upper calendaring roller and the lower calendaring roller, and a clamping part a clamped on a lip tile is arranged on the inner side of the cambered surface at the lower part of the tip part a; and at least the part between the upper calendering roller and the lower calendering roller is arranged in a profiling manner according to the outer contour of the tip part a, and the baffle structure is made of heat-resistant steel. By arranging the steel baffle structure which is profiled with the outer contour of the flange brick on the inner side of the tip end of the flange brick, the steel baffle structure provides an accurate contour, the flange brick body provides structural strength and heat preservation, the steel baffle structure is small in area, the heat dissipation area and the heat dissipation speed are greatly reduced, the production cost is reduced, and the edge clearing loss is greatly reduced; the problem that in the prior art, a steel flange brick is large in heat dissipation area and too fast in heat dissipation, so that the glass edge is crystallized, and edge loss is large is solved.

The invention provides an expandable heat radiator based on a satellite-borne large-scale phased-array antenna, which comprises a capillary pump, a loop heat pipe, a rotating mechanism, a radiant panel and a locking and releasing device, and is characterized in that the capillary pump is mounted on the satellite-borne phased-array antenna and is in heat conduction connection with the radiant panel through the loop heat pipe; the radiant panel is rotatably mounted on the side wall of the spacecraft through a rotating mechanism, and the rotating mechanism is used for driving the radiant panel to be unfolded outwards or folded inwards relative to the side wall of the spacecraft; the locking and releasing device is installed on the radiant panel and used for locking the radiant panel before a satellite enters an orbit and releasing the locking state of the radiant panel after the satellite enters the orbit. Wherein the locking state of the radiant panel is that the radiant panel is folded inwards and attached to the outer surface of the side wall of the spacecraft. Therefore, the problem of heat dissipation of the large-scale high-heat-consumption phased-array antenna can be effectively solved.

The utility model discloses a refrigerant direct cooling and liquid cooling fusion cooling system, and aims to overcome the defects of high energy consumption, poor cooling performance and use cost increase of a cooling system in the prior art. The technical problem is solved through the following technical scheme: the battery pack cooling system comprises a refrigerating system, a water system for cooling a battery pack and a refrigerant direct cooling system, the water system comprises an evaporator, a circulating pump and a pipeline water electric heater, the refrigerating system comprises a liquid storage tank and a condenser; two ends of the liquid storage tank are respectively connected with the condenser and the evaporator, and an electronic expansion valve is arranged between the evaporator and the liquid storage tank; the refrigerant direct cooling system comprises a power module cooling cold plate, an evaporation pressure regulating valve and an electromagnetic valve; one end of the power cooling cold plate communicates with the liquid storage tank, the other end of the power cooling cold plate communicates with the evaporation pressure regulating valve, and the electromagnetic valve is arranged between the power module cooling cold plate and the liquid storage tank; and one end of the evaporation pressure regulating valve far away from the power module cooling is communicated with an air suction pipe of the refrigeration system.

The utility model provides a kind of high-temperature-resistant long-life ball bearing retainer, it is related to bearing retainer technical field, and it includes: hold frame body;The retainer body is annular structure, and ball hole is arranged in annular array shape on the inner wall of retainer body;Annular array shape is arranged in the through hole of the outer wall of retainer body, and the through hole is circular hole structure, and the through hole arranged in annular array shape is jointly composed of the heat dissipation structure of retainer body.Utilize nickel-based alloy high melting point (1300 DEG C above) and strong oxidation resistance, so that retainer is not easy to heat softening or oxidation corrosion failure under high temperature working condition (such as industrial kiln, aeroengine), directly prolongs the service life under high temperature environment;Through type circular through hole forms three-dimensional heat dissipation channel, cooperates the forced convection of lubricating medium (oil / gas), and internal heat is quickly taken away.For example in high-speed motor, airflow passes through through hole can make retainer temperature reduce 20%~30%, avoid local overheating to cause material failure.

The utility model discloses a new energy battery pack ram-type water cooling plate, which relates to the technical field of water cooling plates, and comprises an upper plate and a lower plate, the opposite sides of the upper plate and the lower plate are respectively provided with a first water distribution hole and a second water distribution hole, water collecting holes are formed in the positions, between the first water distribution holes and the second water distribution holes, of the opposite sides of the upper plate and the lower plate, and a plurality of first water grooves are formed in the left sides of the interiors of the first water distribution holes. According to the ram-type water cooling plate for the new energy battery pack, two water inlet pipes and a water outlet pipe are connected with three connecting mechanisms respectively by arranging a first water distribution hole, a second water distribution hole, a water collection hole, a first water tank and a second water tank, cooling water enters the water inlet pipes, and the cooling water enters the first water distribution hole and the second water distribution hole; the cooling water enters the first water tank and the second water tank for heat exchange, and the cooling water after heat exchange enters the water collecting hole and then enters the water outlet pipe, so that heat exchange is performed on the two places.

The utility model provides a switching power supply and electronic equipment, relates to the technical field of electronic products, and aims to solve the problem of poor heat dissipation performance of a synchronous rectification switching tube with a small heat dissipation area in the switching power supply. The switching power supply comprises a circuit board; the first component and the second component are both installed on the circuit board, and the heat dissipation area of the first component is larger than that of the second component; the heat conduction wire is arranged on the circuit board and located between the first component and the second component, and the heat conduction wire is in thermal coupling with the first component and the second component; wherein the first component comprises a transformer and / or a filter inductor, and the second component is a synchronous rectification switch tube.

The invention discloses a three-dimensional curing kiln for prefabricated components and a stacking machine structure, which mainly relates to the technical field of prefabricated component production equipment, and comprises a left curing kiln, a right curing kiln and a central stacking machine. Formwork components are arranged inside the left curing kiln and the right curing kiln; the left curing kiln and the right curing kiln have the same structure and both adopt a frame structure; the adjacent formwork components are connected by formwork coupling parts; a coupler is disconnected from a device on a column of the central stacking machine; a double-row, multi-column and multi-layer curing kiln is adopted, which reduces the horizontal occupied area, improves the kiln capacity, makes the production line layout more flexible, effectively reduces the horizontal travel time of the stacking machine, improves the stacking capacity of the stacking machine, and reduces the number of stacking machines under the condition of the same kiln capacity.

In order to make it possible to provide a cooling component which can efficiently cool a portion, of a heating body, heated to a higher temperature without increasing the area of a heat sink, this cooling component includes a first portion corresponding to a first region of the heating body, and a second portion corresponding to a second region of the heating body heated to a higher temperature than the first region, wherein the second portion is provided with a plurality of protruding sections, each of the protruding sections of the second portion forms a flow passage through which a refrigerant flows, and the first portion is not provided with a flow passage.

The present invention relates to the field of lithium battery production, and in particular to an oven, a drying method, a coating machine and a coating system. The oven includes a first nozzle group, a second nozzle group, a third nozzle group, a fourth nozzle group and N roller groups; the first nozzle group includes A first nozzles that are in a first plane and arranged at intervals along a first direction; the second nozzle group includes B second nozzles that are in a second plane and arranged at intervals along a first direction; the third nozzle group includes C third nozzles that are in a third plane and arranged at intervals along a first direction; the fourth nozzle group includes D fourth nozzles that are in a fourth plane and arranged at intervals along a first direction; the four planes are parallel to each other; the length of the projections of the four nozzle groups in the first direction is less than the sum of the lengths of the four nozzle groups in the first direction; the roller group is used to support the pole pieces to flow through the first, second, third and fourth nozzle groups in sequence. The length of the oven in the first direction is reduced, and the floor space of the oven is reduced.

The invention belongs to the technical field of industrial production, and provides a wide-load long-transmission steam pipe network system and an operation method thereof. A steam turbine generator unit is connected with a main pipe through a rated parameter steam extraction pipe and a high parameter steam extraction pipe which are connected in parallel; a steam source in a rated parameter steam extraction pipe and a steam source in a high parameter steam extraction pipe are mixed to obtain a steam source higher than rated parameters, especially pressure, so that the specific volume of steam is reduced, if the flow speed in a pipe network is kept unchanged, a large pipe diameter is not needed, the pipe diameters of a main pipe and a branch pipe can be reduced, and through pipe diameter optimization, the cost is reduced. Compared with the prior art, construction investment cost of a pipe network is effectively reduced, along with reduction of the pipe diameter, under the same heat preservation condition, the overall heat dissipation area of the pipeline is reduced, heat dissipation of the pipeline is reduced under low load, temperature drop is smaller, the requirement for lower flow load can be met, along with reduction of the pipe diameter, materials used by the pipeline are reduced, and due to reduction of the surface area, cost is reduced. The requirement for heat preservation is lowered, and the temperature of steam received by a user side can be guaranteed.

The invention discloses an injection type experimental method for accurately measuring the specific heat capacity of metal, which comprises the following steps: selecting a calorimeter body, arranging an injection mechanism for injecting liquid into the calorimeter body on a barrel cover (4) of the calorimeter body, namely, processing a cylindrical hole (41) on the barrel cover (4), and covering the cylindrical hole (41) with a rubber plug (8); the upper end face of the rubber plug (8) is connected with the rubber plug seat (82) through a connecting piece (81), and the rubber plug (8) can automatically stand above the rubber plug seat (82) when opened. In the process of adding high-temperature water or low-temperature water into a system, a barrel cover (4) of the calorimeter does not need to be opened, the high-temperature water or the low-temperature water is directly injected into the calorimeter through a cylindrical hole (41) by adopting a water injection barrel (11), only the small cylindrical hole (41) is communicated with the outside, and meanwhile, due to the fact that a rubber plug (8) is rapidly opened and closed, the calorimeter is convenient to use. The heat dissipation area and the heat dissipation time of the high-temperature liquid to the environment are greatly reduced, and the measurement precision of the metal specific heat capacity is remarkably improved.

This invention provides an air-conditioning range hood and its control method, relating to the technical field of kitchen appliances. The air-conditioning range hood includes: a refrigeration system, a first heat exchange channel, a second heat exchange channel, an electric refrigeration module, a first temperature detection module, and a controller. The refrigeration system includes a condenser; the condenser of the refrigeration system is located inside the first heat exchange channel; the second heat exchange channel is located outside the first heat exchange channel; the heat absorption part of the electric refrigeration module is located inside the first heat exchange channel, and the heat dissipation part of the electric refrigeration module is located inside the second heat exchange channel; along the airflow direction of the first heat exchange channel, the heat absorption part is located in front of the condenser; the first temperature detection module is located inside the first heat exchange channel and is used to detect the temperature T1 inside the first heat exchange channel.

The utility model relates to a sintering machine tail chute waste heat recovery system which structurally comprises a trolley conveying device, a crusher arranged at the tail end of the trolley conveying device, a tail chute arranged at the tail end of the trolley conveying device and below the crusher, and a waste heat recovery water tank arranged below the tail chute. The waste heat recovery water tank is communicated with a water inlet pipe, and the waste heat recovery water tank is communicated with a sintering raw material mixer of a mixing workshop through a water outlet pipe. Sensible heat of sintering ore is recycled to the maximum extent, normal-temperature water is heated into hot water, the hot water is conveyed to a sintering raw material mixer of a sintering mixing workshop to be added into raw materials, the temperature of the sintering raw materials is increased, fuel consumption of sintering production is reduced, the quality of sintered ore is improved, the environment temperature of a tail chute is improved, and the service life of the sintering ore is prolonged. And energy wasted in sintering production is recycled.

A liquid cooling system for power batteries in new energy commercial vehicles includes a mounting frame, frame skin, a primary heat dissipation device, a secondary heat dissipation device, and a tertiary heat dissipation device. This invention uses coolant in a water-cooled condenser to absorb the heat of the refrigerant, and then uses ambient air to carry it away through a low-temperature radiator. By using a water-cooled condenser and a low-temperature radiator instead of an air-cooled condenser, the heat dissipation area is reduced by half compared to using a parallel flow condenser. Similarly, the number of fans can also be reduced by half. At the same time, the fixing method of the low-temperature radiator is easy to install, which can effectively reduce the assembly difficulties caused by dimensional tolerances. This invention has a specially designed cooling pipe structure, which can maximize the temperature uniformity of all battery packs and improve the cell life.

The utility model relates to the technical field of cold chain transportation, in particular to an intelligent balanced refrigeration device for cold chain transportation, which comprises a cargo compartment, refrigeration equipment for conveying cold air into the cargo compartment, an automatic control device for controlling the refrigeration equipment and a cold air flowing device mounted in the cargo compartment, a compartment door facilitating loading is hinged to the end, away from the refrigeration equipment, of the cargo compartment in a matched mode, the automatic control device can automatically monitor the temperature of all positions in the cargo compartment and control automatic starting and stopping of the refrigeration equipment, the cold air flowing device comprises a cross-flow fan installed in the cargo compartment, and an air inlet and an air outlet are formed in the cross-flow fan. The cross-flow fan is installed on the lower side, close to a compartment door, of the cargo compartment, the cross-flow fan and the refrigeration equipment are arranged in an up-down diagonal mode, an air inlet of the cross-flow fan is horizontally arranged in the direction of a vehicle head of the cargo compartment, and an air outlet of the cross-flow fan is vertically arranged upwards. The refrigeration effect of the refrigerator car is improved.

The invention relates to a power transformer comprehensive weight reduction design method suitable for a low-frequency power transmission system, and the method comprises the steps: determining original technical data according to a design task book; determining a reference scheme of transformer design according to the original technical data; carrying out magnetic circuit design optimization aiming at the reference scheme; carrying out conductive design optimization on the scheme after the magnetic circuit design optimization; and carrying out insulation design optimization on the scheme after the conductive design optimization to obtain a final design scheme of the transformer. Compared with the prior art, the comprehensive weight reduction of the transformer can be reliably realized by optimally considering the iron core material, the winding design, the insulation design, the heat dissipation system, the leakage reactance and the leakage flux design.

The utility model provides a combined type sulfur melting device, which relates to the field of sulfur melting devices, and comprises a base and a tank body, the tank body is arranged at the upper end of the base, the tank body comprises a sulfur melting tank, a filter aiding tank and a fine filter, the upper end of the filter aiding tank is provided with a filter aiding pump mounting port and a diatomite inlet, and the lower end of the filter aiding tank is provided with a filter aiding pump mounting port. Meanwhile, manholes and stirrer mounting ports are formed in the upper ends of the sulfur melting tank and the filter aid tank, the sulfur melting tank, the filter aid tank and the refined sulfur tank are connected into an integral rectangular tank structure, partition plates are arranged among tank cavities of the sulfur melting tank, the filter aid tank and the refined sulfur tank, first heating coils are arranged in the sulfur melting tank and the filter aid tank, and second heating coils are arranged in the sulfur melting tank and the filter aid tank. Meanwhile, a second heating coil is arranged in the refined sulfur tank, and a first top plate and a second top plate are arranged at the upper end of the tank body. The melt flow device solves the problems of large occupied area and high equipment and material use cost caused by scattered connection of equipment in the melt flow device in the prior art.

The embodiment of the utility model provides a power adapter. The power adapter includes: a housing; the first heat dissipation cover body is connected to the shell, and a containing cavity is defined by the first heat dissipation cover body and the shell; the electric control assembly is arranged in the accommodating cavity; the second heat dissipation cover body is movably connected to the first heat dissipation cover body, and the second heat dissipation cover body is arranged on the side, away from the shell, of the first heat dissipation cover body. According to the power adapter disclosed by the embodiment of the invention, the second heat dissipation cover body is connected to the first heat dissipation cover body, so that the heat dissipation area is increased, and the problems of non-uniform heat conduction and poor heat dissipation effect of the power adapter are solved.

The application discloses a manufacturing method of a ceramic micro-flow channel carrier for high-power devices and relates to the field of ceramics. The manufacturing method comprises the following steps: after punching a green ceramic sheet, tungsten slurry is used to fill the holes and conductor patterns are printed on the surface of the green ceramic sheet; then, a bottom plate micro-flow channel layer is laminated and a sacrificial material is filled in the micro-flow channel cavities; then, the bonding interface between the cover plate and the bottom plate is subjected to ultraviolet laser roughening treatment; then, two-step isostatic pressing forming treatment is performed; after cutting into a bar, the bar is subjected to glue removal, sintering, hot pressing leveling, grinding, polishing and seed layer deposition; then, exposure development is performed and the line layer is thickened by electroplating; then, secondary photolithography processing is performed on the chip eutectic area to open a window; finally, gold tin evaporation treatment, stripping of the photoresist and cutting are performed, so that the ceramic micro-flow channel carrier for high-power devices is obtained. According to the specific manufacturing process, the mechanical strength, the dielectric property, the heat fatigue resistance and the micro-flow channel pressure resistance are improved while the heat dissipation property is maintained.

The present invention discloses a refined coating device based on a coating process and a method of use, which relates to the technical field of glass processing equipment, including a shell, a coating mechanism and a quality inspection mechanism, a suction cup is arranged at the center of the top of the base, extension plates are arranged on the left and right sides of the suction cup, side baffles are arranged on the front and back sides of the suction cup, and the bottoms of the extension plates and the side baffles are connected to a driver that can drive them to move up and down, a coating module and a drying module are arranged at the top of the shell, a first electric push rod is vertically fixed to the top of the shell, a mounting seat is connected to the output end of the first electric push rod, a coating head is arranged at the bottom of the mounting seat, a mounting frame is vertically arranged on one side of the coating head, a scraper is slidably connected to the mounting frame, and a quality inspection mechanism is also arranged on the mounting seat. The refined coating device based on a coating process and a method of use proposed by the present invention can not only improve the coating efficiency and coating quality, but also eliminate the thick edge of the coating edge.

The invention discloses a design method for a highly compact integrated radiator of a diesel generator set, which belongs to the technical field of engines and comprises the following steps: step 1, calculating the heat capacity flow rate of each heat fluid; step 2, calculating the optimal allocation ratio of the heat dissipation area on the hot and cold sides of each heat fluid heat dissipation module; step 3, calculating the thermal resistance demand coefficient; step 4, multiplying the heat capacity flow rate of the heat fluid, the optimal allocation ratio of the heat dissipation area on the hot and cold sides, and the thermal resistance demand coefficient to calculate the heat exchange matching judgment parameter of each heat fluid heat dissipation module; step 5, determining the series-parallel state of each heat fluid heat dissipation module according to the heat exchange matching judgment parameter; step 6, arranging the cooling sequence of each heat fluid heat dissipation module connected in series, and distributing the cooling air volume of each heat fluid heat dissipation module connected in series; step 7, obtaining the final highly compact integrated radiator through the series-parallel selection of each heat fluid heat dissipation module in steps 1-6 and the distribution of the cooling air volume.

The invention discloses a fine coating device based on a coating process and a use method, and relates to the technical field of glass processing equipment.The fine coating device comprises a shell, a coating mechanism and a quality detection mechanism, a suction cup is arranged at the center of the top of a base, extension plates are arranged on the left side and the right side of the suction cup, and side baffles are arranged on the front side and the rear side of the suction cup; the bottoms of the extension plate and the side baffles are connected with drivers capable of driving the extension plate and the side baffles to move up and down, a coating module and a drying module are arranged at the top in the shell, a first electric push rod is vertically and fixedly arranged at the top in the shell, the output end of the first electric push rod is connected with a mounting base, and a coating head is arranged at the bottom of the mounting base. A mounting frame is vertically arranged on one side of the coating head, a scraper is connected to the mounting frame in a sliding mode, and a quality detection mechanism is further arranged on the mounting base. According to the fine coating device based on the coating process and the use method, the coating efficiency and the coating quality can be improved, and meanwhile, the thick edge of the coating edge can be eliminated.

The utility model provides a cold start heat exchange device for a hydrogen fuel cell, and belongs to the technical field of hydrogen fuel cells. The technical problem that the heat exchange rate of the hydrogen fuel cell in the cold start heating process is low is solved. Comprising a plurality of accommodating grooves for accommodating heat exchange parts in the circumferential direction of an accommodating part, when heat exchange is not needed, the plurality of heat exchange parts lean against one another to reduce the heat dissipation area so as to further reduce the heat loss, and the battery can be quickly heated when the hydrogen fuel battery is cold-started next time; when the battery is in cold start, the medium driving assembly drives the heat exchange medium in the heat exchange cavity to be filled into the expansion cavity and pushes the heat exchange part to slide out of the storage groove, the heat dissipation area is increased, and the heat exchange rate is increased.

The invention discloses a spiral plate type internal combustion efficient hot-blast stove and a using method, and relates to the technical field of hot-blast stoves, the stove comprises a stove body, a combustion chamber and a spiral plate type heat exchanger are arranged in the stove body, and the heat exchanger is of a plate type structure which is spirally distributed layer by layer around the central axis of the stove body; the plate type structure is divided into a hot air cavity part and a fresh air cavity part, fresh cold air passing through a fresh air cavity exchanges heat with combustion tail gas passing through the hot air cavity, a combustion chamber and a heat exchanger are seamlessly designed into a whole in the hot blast stove, a parallel plate type heat exchange mode of a spiral structure is adopted, cold air and hot air flow reversely in the whole heat exchange process, and heat exchange efficiency is improved. Cold air is heated gradually in a balanced mode, hot air is released gradually in a balanced mode, cold and hot air flows without turbulent flow in the whole heat exchange process, heat is utilized comprehensively, the heat efficiency is high, energy consumption is low, operation is stable, the automation degree is high, combustion tail gas is discharged into the atmosphere in a dispersed mode through the spiral plate type heat exchanger from the combustion chamber, the temperature is low, and the hot blast stove is safe, environmentally friendly and high in practicability.

The invention relates to the technical field of automobile gas tank mounting racks, and discloses a gas tank fixing rack for a CNG (compressed natural gas) heavy truck, which comprises two vertical plates, the two vertical plates are connected through two side plates, and a plurality of circular heat dissipation holes are formed in the side plates; a plurality of adjusting plates which are distributed in a circumferential mode are installed in each heat dissipation hole in a sliding mode, and the adjusting plates are driven by a transmission assembly installed on the side plate; and a humidity sensor; when the humidity is lower than a threshold value, the transmission assembly drives the multiple adjusting plates on the same heat dissipation hole to synchronously rotate until the multiple adjusting plates are in a closed state, at the moment, the multiple adjusting plates enclose to form a circulation hole, the heat dissipation area is reduced, rain and snow can be effectively intercepted in rainy and snowy days, and the rain and snow are prevented from penetrating into the gas tank fixing frame to be accumulated; and the problem that the power of a CNG heavy truck is influenced by the influence on the pressure of gas in the gas tank caused by freezing of rain and snow on the surface of the gas tank at a low temperature is also avoided.

This invention relates to a water-cooled pipe for the bottom of a blast furnace, belonging to the field of metallurgical industry. The water-cooled pipe (2) is arranged at the bottom of the blast furnace, divided into an inner ring region, a middle ring region, and an outer ring region from the inside out according to the distance from the center of the blast furnace. The diameter of the water-cooled pipe (2) in the inner ring region is smaller than that in the middle ring region, which is smaller than that in the outer ring region. The cooling intensity gradually decreases from the outside to the inside, forming a pot-bottom erosion curve (1) inside the blast furnace hearth, thereby increasing the core temperature of the blast furnace hearth. This invention can enhance the cooling of the elephant foot region of the hearth, slow down the erosion of the refractory material in the elephant foot region, reduce the diameter of the middle ring pipe, reduce the cooling area, and minimize the diameter of the inner ring pipe, resulting in the smallest cooling area. The cooling intensity gradually decreases from the outside to the inside, thus forming a pot-bottom erosion, while simultaneously increasing the core temperature, ensuring the hearth is active, and extending the hearth's lifespan.

The utility model provides a boost isolation transformer for an offshore wind turbine generator. The boost isolation transformer comprises a transformer body; the transformer body is coated with the shell; the shell comprises a side plate; heat dissipation frames are arranged on the three adjacent side plates; transversely arranged heat dissipation blades are arranged on the heat dissipation frame; a driving assembly arranged at the top of the heat dissipation frame is connected with the heat dissipation blades and a control device of the driving assembly; the control device comprises a supporting column penetrating through the x-direction center line of the cooling blade; the traction cables are connected with the clamping parts and are separately arranged on the two sides of the supporting column, and the baffles are arranged on the bottom surfaces of the heat dissipation blades and are connected with the traction cables. The heat dissipation frame is arranged on the transformer shell, collaborative optimization of efficient heat dissipation and protection functions is achieved through the design of the modular driving structure and the adjustable heat dissipation blades, and the problem that in the prior art, heat dissipation and rain prevention of an offshore transformer shell are difficult to achieve at the same time is solved.

This patent discloses a two-stage CPC collector with a spiral vacuum tube, including a spiral CPC vacuum heat collection tube, an outer CPC reflector, and an adjustable support frame; the spiral CPC vacuum heat collection tube is in the groove of the outer CPC reflector, and the two ends of the spiral CPC vacuum heat collection tube and the outer CPC reflector are connected to the adjustable support frame and supported by the adjustable support frame, and the relative positions among the CPC vacuum heat collection tube, the outer CPC reflector, and the adjustable support frame can be changed by adjusting the adjustable support frame. The CPC collector device adopts the design of outer CPC focusing + inner 360-degree CPC focusing, with high heat collection temperature and heat collection efficiency, and good adjustable performance, which is convenient for stepless adjustment of the position, height, CPC direction and shape of the CPC heat collection tube and the reflector, ensuring the high solar energy utilization rate and environmental adaptability of the CPC collector, and at the same time, the structure is simple, easy to assemble and disassemble, reusable, low cost, beautiful style, and has good promotion potential.