76 results about "Hot zone" patented technology

Source: FR2832733 A1 Video sensors are used for controlling melting of aluminum in a furnace by producing images of the bath surface or the inner surface of the furnace walls. Melting of aluminum in a furnace comprises: (a) introducing solid aluminum into the furnace; (b) melting the aluminum to form a molten bath; (c) production of images of the bath surface or of the inner surface of the furnace (2) walls; (d) treating these images to identify the presence of solids or the formation of oxides on the bath surface or for identifying the presence of hot spots or hot zones or zones having a certain minimal temperature on the fumace walls; and (e) modifying at least one fumace operating condition as a function of this treatment of the images. Independent claims are also included for the following: (a) a device for detecting the surface state of a bath of aluminum or the state of the furnace walls in an aluminum melting furnace; and (b) an aluminum melting furnace incorporating this detection device.

A refrigerated display case door glass panel assembly includes a first pane of glass and a second pane of glass bounding a sealed space between the panes, and an electrically conductive coating applied to a surface of the first pane. The coating extending across at least a majority of a viewing area of the first pane. A first pair of electrical buses spaced apart from one another and electrically connected to the coating at respective first and second ends of the first pane, the first and second ends being opposite one another, and a second pair of electrical buses spaced apart from one another and electrically connected to the coating at respective third and fourth ends of the first pane. The third and fourth ends being opposite one another and adjacent to the first and second ends.

The application relates to the technical field of single-crystal silicon heat field material preparation, and discloses a processing and manufacturing process and system of single-crystal silicon growth heat field graphite products. The process comprises the following steps: S1, preparation of a preform, S2, baking treatment, S3, index detection grading, S4, furnace loading zoning, S5, graphitization treatment, and S6, machining forming steps. Through accurate control of the preparation parameters of the preform, establishment of a multi-dimensional index detection grading standard and matching of the furnace loading zoning strategy of the Acheson furnace temperature field, the problems of poor performance uniformity and high impurity content of the graphite products in the traditional process are solved, and the purity, density and size stability of the single-crystal silicon growth heat field graphite are significantly improved. The system comprises a preform preparation unit, a grading detection unit, an intelligent furnace loading unit and a graphitization furnace body, automatic control is introduced, and the strict requirements of large-scale production of single-crystal silicon on heat field materials are met.

The improved disc type cold and hot press forming system is characterized in that the hot press forming procedure in the hot zone working station is carried out in a vacuum environment to reduce the amount of heat energy dissipated through conduction.

Sublimation furnace (200) for the formation of silicon carbide, comprising a furnace jacket (201), at least one heating element (202) arranged outside the furnace jacket (201), and a hot zone (203) arranged inside the furnace jacket (201) surrounded by insulation (204), wherein the hot zone (203) comprises: a) a crucible (210) having an upper region (220) and a lower region (240); b) a crucible cover (215) that tightly seals the crucible (210); c) a solid silicon carbide precursor arranged in the lower region (240) of the crucible (210), and d) a seed crystal module arranged in the upper region (220) of the crucible (210), the seed crystal module comprising: (1) a silicon carbide seed crystal (100) having an upper surface (150) and a lower surface (160), wherein the upper surface (150) is exposed to the upper region (220) of the crucible (210), and the lower surface (160) is facing the solid silicon carbide precursor and the lower region (240) of the crucible (210), and (2) a seed crystal holder (120) having an upper section and a lower section holding the seed crystal (100) between them, the seed crystal holder (120) comprising a plurality of vapor release openings (130) formed around a central axis (215) of the seed crystal holder (120); and e) a vapor release ring (280) arranged above the upper section of the seed crystal holder (120), the vapor release ring (280) having one or more holes (270) aligned with one or more vent holes (260) formed in the crucible (210), wherein the plurality of vapor release openings (130) of the seed crystal holder (120), the one or more holes (270) of the vapor release ring (280), and the one or more vent holes (260) of the crucible (210) together form a path for vapors to escape from the crucible (210).

The utility model discloses a tower plate structure of an ultra-large rectifying tower, belongs to the technical field of industrial equipment, and aims to provide a tower plate structure of an ultra-large rectifying tower with conveniently controllable temperatures at different heights in a tower body, the tower plate structure comprises a heating disc, a convection channel is formed in the center of the heating disc, and a hot area temperature sensor is fixedly connected to the upper surface of the heating disc; an electric heating disc is arranged at the bottom of the heated disc, a positioning steel ring is fixedly connected to the edge of the heated disc, a heat insulation disc is fixedly connected to the bottom of the positioning steel ring, a clamping channel is formed in the center of the heat insulation disc, a condensation pipe is arranged on the bottom face of the heat insulation disc, and a cold area temperature sensor is fixedly connected to the lower surface of the heat insulation disc. The heating parts are arranged in the interlayers of the tower plates, the temperature sensors are arranged on the top surfaces of the tower plates, and the condensation pipes and the temperature sensors are arranged on the bottom surfaces of the tower plates, so that the temperatures at different heights of the rectifying tower are known and controllable, and high-precision rectifying operation can be carried out without carrying out large-scale debugging on the rectifying tower.

The invention provides a catering frozen transportation full-link temperature monitoring method and system based on the Internet of Things, and the method comprises the steps: enabling a plurality of temperature sensors to be disposed at different positions in a refrigerator carriage, and collecting the temperature data and the types of loaded food materials in real time; constructing a short-term volatility index to obtain a hot area set and a hot area staple food material type set; according to the hot area staple food material type set, food material thermophysical property parameters are obtained, and the current center food material estimated temperature of the hot area staple food material at the current moment is calculated; in combination with the central food material estimated temperature and the disturbance weight, constructing a central temperature time sequence of each hot area to obtain a future central temperature predicted value of the hot area; and generating corresponding early warning information based on the future center temperature prediction value of the hot area. The method solves the problem that the existing system can see the temperature but cannot judge the state, cannot predict the trend and cannot accurately give an alarm, and has high engineering suitability and practical application and popularization value.

The application discloses an electronic transformer adaptive heat dissipation control method and system based on temperature rise prediction and relates to the technical field of heat dissipation control. The electronic transformer adaptive heat dissipation control method based on temperature rise prediction comprises the following steps: S1, collecting heat dissipation disturbance data, and performing pretreatment and channel mapping operation; S2, performing sampling disturbance analysis based on the disturbance amplitude of the disturbance channel, the temperature sampling jump amplitude and the physical temperature rise change value; S3, performing temperature rise credibility evaluation by comprehensively considering the heat zone heating power, the measured temperature change, the sampling disturbance value and the fan start-stop number; and S4, outputting the heat dissipation joint control state according to the temperature rise credibility token, the temperature rise credibility shielding token, the overload retention state word and the entry mask. The method solves the problem that the existing fan PWM speed regulation disturbance is easy to enter the temperature sampling link, leading to temperature rise trend misjudgment, fan reverse speed regulation and heat dissipation control oscillation.

This invention discloses a heater and a hot zone for a single crystal furnace, relating to the field of single crystal manufacturing technology. It provides a technical solution to reduce the oxygen content of single crystal silicon by decreasing the heating zone of the heater without shortening its heating area. The heater provided by this invention is applied in the hot zone of a single crystal furnace. The heater is disposed on the outer periphery of a crucible in the hot zone of the single crystal furnace and is used to heat at least the surface of the molten silicon in the crucible. The heater includes: multiple heating zones and multiple slit zones, each slit zone being connected between two adjacent heating zones; the openings of the multiple slit zones have the same opening direction, and the width of the slit zone is greater than or equal to the width of the heating zone.

An ingot puller apparatus for producing a single crystal silicon ingot includes an ingot puller housing that defines a growth chamber, a crucible assembly positioned within the growth chamber for holding a silicon melt, a susceptor supporting the crucible assembly within the growth chamber, and at least one hotzone component positioned within the growth chamber. The at least one hotzone component includes a substrate having a surface emissivity and a refractory material coating applied to the substrate that modifies the surface emissivity.

The utility model provides a kind of aluminium liquid smelting furnace agitating device, it is related to aluminium material smelting technical field, including smelting furnace body, the rotating shaft is penetrated and is rotatably installed in smelting furnace body upper surface one side, the agitating assembly for agitating aluminium liquid is arranged in the lower end of rotating shaft, the driving assembly for driving rotating shaft rotation is arranged in smelting furnace body upper surface.The utility model in the staff can smelt aluminium material into aluminium liquid by using smelting furnace body, in smelting process, staff enables driving assembly, makes it drive rotating shaft rotation, rotating rotating shaft can drive mounting sleeve and mounting block rotation, so that inclined rod can be rotated with rotating shaft as reference and agitate melt in smelting furnace body, so that melt and heat are fully contacted, avoid the appearance of cold zone and hot zone in furnace, to improve smelting quality.

The utility model relates to a power generation hot area module and a fuel cell, the power generation hot area module comprises a cell stack and a heat exchange module, the cell stack and the heat exchange module are arranged in a thermal insulation shell, and the cell stack is provided with a hydrogen inlet used for being connected with hydrogen production equipment outside the thermal insulation shell. The power generation hot area module does not need to be damaged when the hydrogen production equipment is replaced or repaired; the heat exchange module comprises a combustor and a first heat exchanger, an exhaust port of the cell stack is connected with a power generation waste gas inlet of the combustor, the combustor is connected with a combustion hot gas inlet of the first heat exchanger, the combustor ignites power generation waste gas to enable combustion hot gas to enter the first heat exchanger, and the first heat exchanger is provided with a cold gas inlet and a hot gas outlet. A hot air outlet in the hot gas outlet is connected with the cell stack through a pipeline to preheat air entering the cell stack, so that the resource utilization rate is increased; in the fuel cell applying the power generation hot area module, the power generation hot area module and the hydrogen production equipment are independently arranged, and only a connecting pipeline needs to be disconnected during maintenance and replacement.

The invention belongs to the technical field of battery detection, and discloses an electric vehicle battery temperature comprehensive detection device, which comprises a detection master control module and an outer side temperature detection mechanism, and is characterized in that the two sides of the detection master control module are symmetrically provided with assembling assemblies, and the assembling assemblies are vertically symmetrically distributed between adjacent battery modules; an elastic supporting piece is elastically connected between the upper assembling assembly and the lower assembling assembly. According to the invention, the gap temperature detection mechanism located in the gap between the adjacent batteries is matched with the outer side temperature detection mechanism on the outer surface of the battery module, so that the multi-dimensional comprehensive monitoring of the battery temperature field is realized, and the elastic support piece with the temperature sensing plate is arranged in the core hot area between the adjacent batteries; compared with traditional point-mode temperature measurement, the temperature field distribution of the whole battery pack can be reflected more comprehensively and truly, and missing detection of local overheat points is effectively avoided.

The application provides a preparation method of an electrode part applied to a single crystal hot field device, which comprises the following steps: mixing cobalt powder, iron powder and carbon fiber particles to obtain a first mixed powder; mixing cobalt powder, copper powder, iron powder and carbon fiber particles to obtain a second mixed powder; filling the first mixed powder into a cavity of a mold, and making the volume of the first mixed powder account for 1 / 3-1 / 2 of the volume of the cavity; filling the second mixed powder into the cavity of the mold, and making the second mixed powder fill the cavity of the mold; performing die forming so that the first mixed powder and the second mixed powder jointly form an electrode green body; and sintering the electrode green body to obtain an electrode part. The electrode part has the excellent performance of both carbon / carbon composite material and cobalt-copper alloy material. The application further provides an electrode part prepared by the preparation method.

The disclosed system includes a thermally optimized circuit board configured for use in thermostats to enhance temperature measurement accuracy. The circuit board integrates embedded thermistors strategically positioned in distinct thermal zones. A hot thermistor is influenced by heat-generating components in a hot zone, and a cool thermistor is thermally isolated in a more stable, cool zone. The system leverages the temperature differential between these zones to compensate for heat offsets caused by component board heating, enabling more accurate ambient temperature readings. Thermal isolation is achieved through features such as thermal gaps, serpentine routes, and thermal peninsulas, which reduce heat conduction into the cool zone. The circuit board's configuration supports precise temperature sensing, reliable RF operation, and scalability for compact devices. The system improves thermostat functionality by combining thermal management, electrical connectivity, and accurate environmental monitoring for modern smart thermostats.

The invention provides an aberration analysis method of an extreme ultraviolet lithography system, which comprises the following steps of: constructing a space energy distribution model of a shared hot area, reconstructing a composite aberration original field jointly caused by overlapping thermal creep of adjacent mirror surfaces in the shared hot area, extracting a main trend field formed by common thermal deformation of the adjacent mirror surfaces, and analyzing the aberration of the extreme ultraviolet lithography system according to the main trend field. Separating a residual field representing mirror independent deformation contribution from the composite aberration original field, distributing deformation in the residual field to a corresponding responsible mirror to form single-mirror attributable aberration fields, and distributing a weight based on the influence degree of the single-mirror attributable aberration fields on the imaging quality for each single-mirror attributable aberration field to form a single-mirror attributable aberration field; and synthesizing the weighted aberration fields of the mirror surfaces with the main trend field to generate a final aberration analysis result for aberration compensation. The method can effectively identify, separate and attribut to the composite aberration caused by overlapping thermal creep of the adjacent mirror surfaces; and the long-term imaging stability and reliability of the extreme ultraviolet lithography system under efficient operation are ensured.

The utility model discloses a silicon carbide thermal field heat preservation structure which comprises a heat preservation cylinder and a crucible, the crucible is located in the heat preservation cylinder, the outer wall of the crucible is tightly attached to the inner wall of the heat preservation cylinder, a crucible cover is installed on the upper portion of the crucible, and air holes are evenly distributed in the periphery of the upper portion of the crucible cover. The upper portion of the heat preservation cylinder is sealed through an upper heat preservation layer, the lower portion of the heat preservation cylinder is sealed through a lower heat preservation layer, and flow guide grooves are evenly distributed in the upper edge of the heat preservation cylinder and correspond to the air holes in position. The utility model can prolong the service life of the thermal field and improve the stability of single crystal growth.

A cartridge for an aerosol-generating system is provided, the cartridge including: a reservoir configured for liquid aerosol-forming substrate; a heating element configured to heat the liquid aerosol-forming substrate from the reservoir; and a wall including a porous material, such that: a first space adjacent to the heating element and between the wall and the heating element forms a hot zone, a second space adjacent to the heating element forms a feed zone, the reservoir is in fluid communication with the feed zone and the hot zone, at least a portion of the wall is positioned between the hot zone and the reservoir, the wall is in contact with the hot zone and the reservoir, and a portion of the wall in contact with the feed zone is thinner than a portion of the wall in contact with the hot zone.

The present application belongs to the field of hypersonic wind tunnel equipment, and particularly relates to a gas piston driving operation rectifying structure for a high Reynolds number hypersonic wind tunnel. The gas piston driving operation rectifying structure comprises a flow equalizing tank at the bottom of a heater and in communication with a heater cylinder, the internal cavity of the flow equalizing tank is a flow equalizing cavity, the inner diameter of the flow equalizing cavity is greater than the inner diameter of the heater cylinder; the bottom surface of the flow equalizing tank is provided with a cold gas inlet, the top surface of the flow equalizing cavity is provided with a cold gas outlet, and the cold gas outlet is provided with a flow guide platform. The gas piston driving operation rectifying structure can maintain the constant temperature and pressure of the hot gas at the outlet of the heater without a solid piston; can fully utilize the super-high temperature and super-high pressure hot gas inside the heater without increasing the volume of the hot zone of the heater; can equalize and guide the entering super-high pressure cold gas flow through the flow equalizing cavity and the flow guide platform, avoid the cold gas center jet, improve the gas piston driving efficiency and the hot gas utilization rate, and prolong the effective operation time of the high Reynolds number hypersonic wind tunnel.

The utility model discloses a thermal field structure for growing silicon carbide single crystals, which comprises a thermal insulation seat body, a side wall heating mechanism and a bottom heating mechanism, a crucible is arranged in the thermal insulation seat body, and the side wall heating mechanism is arranged between the thermal insulation seat body and the side wall of the crucible. A resistance-type heating bottom heating mechanism is arranged between the heat preservation seat body and the bottom of the crucible; the side wall heating mechanism comprises a plurality of sections of induction heating units which are sequentially arranged from top to bottom and are different in conductivity, and an induction coil is correspondingly arranged on the outer side of the heat preservation seat body. Through cooperation of the side wall heating mechanism and the bottom heating mechanism, the regulation and control range of the axial temperature gradient of liquid in the crucible is expanded; and the problem of insufficient bottom heating caused by a skin effect is avoided through a resistance-type heating bottom heating mechanism, so that the bottom of the crucible is fully and uniformly heated, the radial temperature gradient of liquid in the crucible is reduced, the crystal stress is reduced, the high-quality growth of crystals is realized, and relatively good practicability is achieved.

The present disclosure relates to a refrigeration driver based on winding and bending of elastic material, comprising at least a pair of carriers, each carrier being arranged parallel to each other and being rotatable along an axis, and an elastic material strip, both ends of which are fixed on the pair of carriers, wherein the pair of carriers winds the elastic material strip on at least one carrier of the pair of carriers by rotating in a first direction, the part of the elastic material strip wound on the carrier releases heat to form a hot zone, and the pair of carriers unwinds the elastic material strip from at least one carrier of the pair of carriers by rotating in a second direction opposite to the first direction, the part of the elastic material strip unwound from the carrier absorbs heat to form a cold zone. The refrigeration driver of the present disclosure reduces driving force, realizes continuous high-frequency operation and automatically separates the hot zone and the cold zone.

The invention relates to a heat treatment unit (4) comprising: - at least two heating elements (10), each arranged to heat a heated zone (24) of a body (16) of a preform (2), - an acquisition device (36) for acquiring at least one thermal image (38) of the heated preform (2), the thermal image (38) showing at least two thermal zones (40) representative of the temperature of the heated zones (24) of the body (16) of the preform (2), - a correlation module (44) for correlating the position of the two thermal zones (40) with the height of the heating elements (10) having heated the heated zones (24) corresponding to the thermal zones (40), the height of the heating elements (10) being defined in a direction of elevation (Z) parallel to the axis (A) of the preform.

The application relates to a hot field assembly and a single crystal furnace device, the hot field assembly and the single crystal furnace device comprising a flow guide cylinder, a lower heat preservation cover, a lifting mechanism for driving the flow guide cylinder to pass through the inner ring of the lower heat preservation cover and being movable up and down relative to the lower heat preservation cover, the hot field assembly further comprising a heat preservation ring and a transmission mechanism; the heat preservation ring is located at the lower heat preservation cover, and the heat preservation ring comprises at least two heat preservation units for surrounding the flow guide cylinder, so that the heat preservation ring can be folded or unfolded; the transmission mechanism is connected with the lifting mechanism and the heat preservation units, and the folding or unfolding of the heat preservation ring is controlled based on the rising or falling of the output end of the lifting mechanism. When the flow guide cylinder moves to an upper limit position, a gap appears between the flow guide cylinder and the lower heat preservation cover, at this time, the heat preservation ring surrounds the flow guide cylinder and seals the gap between the flow guide cylinder and the lower heat preservation cover, heat leakage is reduced, the heat preservation effect is improved, and the heat preservation ring can also heat the flow guide cylinder, so that the heat preservation effect of the flow guide cylinder is improved.

The application discloses a kind of pyrolysis furnace tube welding devices, including machine base;Two furnace pipe chuck, for fixed butt joint and rotate two furnace pipes, are set on machine base;Welder, centrally arranged on machine base can be moved and weld the joint of two furnace pipes to form weld;Heater is provided on the machine base: it is arranged between two furnace pipe chuck, for step-by-step cooling weld;The heater includes two heating pipe sleeves symmetrically arranged on the machine base, and the heating pipe sleeve is coaxially arranged with the furnace pipe chuck, and a plurality of heating fins are provided in the heating pipe sleeve.The application forms a plurality of heat zones by adopting heater partition heating furnace pipe wall, which produces temperature difference along the welding rotation direction of furnace pipe, and makes weld pool pass through the plurality of heat zones with decreasing temperature in turn, so that the weld can be controlled to cool step by step during the welding process of furnace pipe, to prevent the generation of welding cracks caused by too fast cooling speed.

1. The name of the design product: graphical user interface for quick selection of non-operation hot area interface elements of electronic devices. 2. The use of the design product: for human-computer interaction and information display. 3. The design points of the design product: the graphical user interface content in the screen. 4. The picture or photo that best shows the design points: front view. 5. The use of the graphical user interface: on the graphical user interface of the design product, the user can quickly operate the interface elements in the non-operation hot area from the operation hot area. 6. The area of the graphical user interface in the product: the display screen panel of the design product can be used for mobile phones, car displays, screen-equipped sound boxes, robots, smart TVs, tablets, laptops, desktop computers, navigation devices, car smart rearview mirrors, car recorders, smart watches, heads-up displays (HUD). 7. The human-computer interaction mode of the graphical user interface: the front view is the main interface of the design, the lower right corner area of the main interface is the operation hot area, the area outside the operation hot area is the non-operation hot area, and there are multiple interface elements in the operation hot area and the non-operation hot area; the interface elements include horizontal pull bar controls, as shown in the front view; long press the horizontal pull bar control, the horizontal pull bar control gradually lengthens and the interface elements in the operation hot area are hidden, as shown in interface change state diagram 1; left and right drag operation on the horizontal pull bar control directly maps the interface elements in the non-operation hot area, as shown in interface change state diagram 2; drag the horizontal pull bar control to a predetermined position and release the operation, then select the interface elements in the non-operation hot area and the horizontal pull bar control gradually shrinks, and the interface elements in the operation hot area gradually appear, as shown in interface change state diagram 3; when the horizontal pull bar control disappears, the interface elements in the operation hot area can be controlled, as shown in interface change state diagram 4; the interface content displayed by each interface in the actual use process can refer to the corresponding reference diagram.

This utility model relates to a furnace bottom insulation device for a Czochralski single crystal furnace, belonging to the field of single crystal furnace ingot production technology. It includes an insulation body composed of an insulation felt, an insulation cover, and a shield. The insulation cover is mounted on the upper surface of the insulation felt, and the shield is mounted on the upper surface of the arc-shaped insulation cover. The insulation body has vertically arranged gas channels, electrode channels, and support rod channels. The support rod channels are located in the middle of the insulation body, and the gas channels are symmetrically arranged on both sides of the support rod channels. An extension cylinder is installed inside the gas channels. The electrode channels are located at the edge of the insulation body and are adapted to the electrodes on the heater in the hot zone. The shield has a spliced ​​arc-shaped structure composed of multiple shield bodies. Through holes are opened in the middle of the shield and the insulation cover. A downwardly recessed isolation groove is provided in the through hole of the shield, and a circular hole for the support rod to pass through is provided in the middle of the isolation groove. This device has a simple structure, is easy to use, effectively increases the furnace bottom insulation performance, and achieves the purpose of reducing the power consumption of the single crystal furnace.

The invention provides quartz glass hanging groove sinking equipment. The quartz glass hanging groove sinking equipment comprises a main furnace mechanism, an auxiliary furnace mechanism, a lifting mechanism and a bearing driving mechanism. The main furnace mechanism comprises a furnace body, a hot area assembly and a container bearing assembly, the hot area assembly is arranged in the main furnace chamber, and the container bearing assembly is provided with a container used for bearing softened quartz and corresponding to a heating area of the hot area assembly; the auxiliary furnace mechanism is arranged above the main furnace mechanism in the gravity direction, and an auxiliary furnace chamber which vertically extends in the gravity direction and communicates with the main furnace chamber is formed in the auxiliary furnace mechanism; the lifting mechanism comprises a lifting driving part, a connecting part and a pulling rope, and the lifting driving part is connected with the quartz rod through the pulling rope and the connecting part and pulls the quartz rod to ascend and descend; the bearing driving mechanism is arranged below the main furnace mechanism in the gravity direction, the bearing shaft component is used for being connected with the container bearing assembly and providing upward supporting force, and the bearing rotating component and the bearing lifting component are in driving connection with the bearing shaft component and used for driving the container bearing assembly to rotate or ascend and descend.

This invention discloses a temperature control system for ensuring temperature uniformity in the working zone of a hot isostatic press (HIP), belonging to the technical field of temperature uniformity control in HIP machines. It includes a working cylinder with a working chamber inside, and an inner cylinder inside the working chamber. A double-layer molybdenum-lanthanum insulation cylinder and a flow guide cylinder are sequentially arranged from the inside to the outside between the inner cylinder and the working chamber. Water-cooling channels are arranged around the side walls of the working cylinder. A circulating pump mechanism is located at the bottom of the inner cylinder. A first flow channel is provided between the working chamber and the double-layer molybdenum-lanthanum insulation cylinder, and a second flow channel is provided between the double-layer molybdenum-lanthanum insulation cylinder and the flow guide cylinder. A third flow channel is formed between the flow guide cylinder and the inner wall of the working cylinder. This invention utilizes the double-layer molybdenum-lanthanum insulation cylinder and the flow guide cylinder to more effectively guide the gas path, directing the high-temperature gas accumulated at the top of the working chamber to the outer cooling layer, effectively alleviating the problem of high-temperature gas accumulation at the top of the hot zone, and has good practicality.

The invention relates to a top sealing and heat preservation device and method for a directional solidification single crystal furnace thermal field, belongs to the technical field of single crystal growth equipment, and solves the technical problems that in the prior art, a top sealing and heat preservation device is low in strength, and especially when used for a large-size single crystal furnace, the top sealing and heat preservation device is prone to deformation, fracture or collapse under high temperature and self gravity. The reliability is low; the overall service life is short; and the graphite soft felt is easy to pulverize. The device comprises an upper thermal insulation layer and a lower supporting layer, the upper insulating layer is in contact connection with the lower supporting layer; and the shapes and the sizes of the upper thermal insulation layer and the lower supporting layer are consistent with the shape and the size of the graphite cylinder. A double-layer composite structure composed of the upper heat preservation layer and the lower supporting layer is adopted for top sealing heat preservation of a single crystal furnace thermal field, the lower supporting layer is made of a graphite plate which is high in strength and resistant to high-temperature gas scouring, the stability of the whole structure is remarkably improved, and the service life of the whole structure is remarkably prolonged.

The invention relates to the technical field of structure details, in particular to a refrigerator middle beam embedded with LED lamps and heating wires, and a system comprises a hot area parameter acquisition module, a heat conduction partition recognition module, an assembly collaborative layout module, an electric contact stability monitoring module and a sliding rail self-locking linkage module. According to the method, thermal response information of a center sill lighting cavity and a heating wire area is collected and converted into linear temperature distribution, and thermal concentration and buffer area distribution is defined, so that structural layout is scientifically decided according to thermal data, the thermal compatibility between assemblies is improved, and space conflicts are avoided and layout rationality is enhanced by combining LED sliding rail and heating wire distance analysis; guide rail thermal deformation is linked with wall thickness data, displacement response frequency is recorded, a thermal deformation trend is pre-warned, long-term stable operation of the structure is ensured, a closed-loop path from thermal distribution identification, spatial arrangement, operation monitoring to response feedback is constructed in the whole process, and the integration level, thermal stability and functional reliability of the center sill structure are systematically improved.