122 results about "Thermal interference" patented technology

The invention relates to the technical field of process optimization, in particular to a collaborative optimization analysis method for multi-station tower drum welding. In order to solve the problem that cooperative control of tower drum multi-station welding is difficult, firstly, multi-mode sensing data of welding seam vision, arc sensing, thermal field distribution and welding voiceprint are loaded, a fusion evaluation model is constructed to obtain a welding seam deviation value and a sensor confidence score, and the health state of a sensor is judged according to a threshold value; and a corresponding fault-tolerant reconstruction control mode is triggered to obtain welding tracking control parameters, then a multi-station welding heat source model is loaded, thermal interference is decoupled in combination with the control parameters and thermal field data, multiple stations are cooperatively regulated and controlled, a cooperative control instruction is output and executed, and welding process optimization is achieved.

The invention provides a drain valve leakage online monitoring method and system based on infrared thermal imaging and deep learning. Comprising the following steps: step 1, collecting a thermal image sequence of a drain valve area in real time through an infrared thermal imager, and simultaneously obtaining a drain valve start-stop signal; step 2, based on a steam trap start-stop signal, synchronously segmenting the thermal image sequence into a working state sequence and a shutdown state sequence according to a working period, and performing dynamic background difference processing on each frame of image to eliminate thermal inertia interference of equipment; 3, calculating a temperature gradient map of each frame of image, generating a temperature gradient mask, and highlighting temperature mutation characteristics of the leakage area; 4, constructing a two-channel time sequence compression network model; 5, evaluating the environmental interference degree based on the dynamic interference index, and dynamically adjusting a leakage judgment threshold value; and step 6, in combination with the leakage region area change rate, the temperature gradient change rate and the sensor data trend, carrying out graded judgment on leakage events, and distinguishing real leakage from background thermal interference through texture feature matching.

The invention discloses a synchronous temperature control method for co-extrusion molding of a multilayer polymer film, and relates to the technical field of high polymer material processing, and the method comprises the following steps: setting a target temperature interval of each polymer layer of the multilayer polymer film, and according to the melting characteristics, heat sensitivity and interface bonding requirements of each layer of material, setting a target temperature interval of each polymer layer of the multilayer polymer film; respectively determining an extrusion temperature set value and an allowable fluctuation range; through layered independent temperature control and preheating matching, thermal behavior synchronization of multiple polymer melts is achieved, and the interface bonding stability is improved; through a die head heat insulation and buffer structure, interlayer heat interference is effectively shielded, and the integrity of a functional layer is guaranteed; through the intelligent closed-loop temperature control system, the state of each temperature control area is predicted and adjusted in real time, and self-adaptive optimization of thermal control is achieved. And the co-extrusion quality, the consistency and the production intelligent level of the multi-layer film are integrally improved.

The present application relates to a kind of on-chip photo-thermal gas sensor and on-chip photo-thermal gas sensor assembly, the refractive index of the upper waveguide material layer of sensor ridge waveguide layer is greater than the refractive index of lower waveguide material layer, can support TM mode pump light and TE mode probe light simultaneously. That is, both high absorption of pump light and weak influence of probe light on the gas to be measured are considered, and the detection accuracy of the gas is improved. Moreover, a simpler waveguide structure is used, and the waveguide preparation process is simple, and the waveguide loss is relatively low. Compared with the photo-thermal interference method in optical fiber sensing, the interaction between pump light and the gas to be measured is greatly improved, the length of the detection waveguide is greatly shortened while ensuring high sensitivity, and the device size can be reduced to micrometer level. In addition, the waveguide structure of the on-chip photo-thermal gas sensor disclosed in the present application is prepared from chalcogenide glass, which has more obvious advantages for gas detection in the mid-infrared waveband.

The invention relates to the technical field of storage batteries, in particular to a storage battery temperature control device for a new energy transport vehicle for traffic transportation, which comprises a shell, an air inlet cover is fixedly connected to the bottom of the shell, a driving shaft is rotatably connected to the air inlet cover, a cooling fan is fixedly connected to the top of the driving shaft, and a top partition plate frame is fixedly connected to the top of a polygonal partition frame. Five evenly-distributed limiting seats are fixedly connected to the inner side of the polygonal partition frame, air inlet flow dividing pipes are fixedly connected to the interiors of the limiting seats, ventilation supports are fixedly connected to the tops of the air inlet flow dividing pipes, and battery packs are installed at the tops of the ventilation supports. According to the invention, firstly, a low-energy-consumption basic heat dissipation air channel is constructed by using a hot air rising principle, when it is detected that the temperature of a single battery is abnormal, a directional cooling mechanism can be immediately started, airflow is concentrated to carry out targeted cooling on a heating source, and adjacent air channels are opened through mechanical linkage to carry out collaborative heat dissipation; when a plurality of adjacent batteries are overheated at the same time, linkage is cut off in a self-adaptive manner, thermal interference is prevented, and independent and efficient heat dissipation of each high-temperature point is ensured.

The application discloses a kind of satellite-borne infrared emissivity differential measurement method and device using cold black background, belong to spacecraft thermal control and material on-orbit testing technical field, purpose is to eliminate environmental stray radiation and conduction heat leakage interference, realize material emissivity high-precision in-situ on-orbit test.The application relies on deep space cold black environment and differential disturbance thought, supporting layout emissivity known standard unit and unit to be measured, make two in consistent light thermal condition, respectively establish transient heat balance equation.Because two kinds of units are consistent, such as common-mode interference of stray radiation, conduction heat leakage, two formula difference can be removed interference term, only keep and emissivity related radiation heat loss term.Through the design of different thermal control conditions (such as balance heating, constant temperature control, dynamic heating), the real emissivity of the material to be measured is solved.The application is suitable for in-situ, high-precision measurement of the infrared emissivity of spacecraft surface materials, especially intelligent thermal control materials such as thermochromic materials in space environment.

The invention discloses an intelligent temperature control mute hand-held fan and a temperature control system, and relates to the technical field of intelligent fans, the intelligent temperature control mute hand-held fan comprises a fan main body, a control circuit board, a temperature detection assembly and an interactive display module, the fan main body comprises a hand-held handle and a fan head assembly fixedly connected to the top end of the hand-held handle, according to the fan head assembly, a containing cavity is formed by buckling a front net cover and a rear shell, a motor and a fan blade assembly driven by a rotating shaft of the motor are arranged in the containing cavity, the problem that temperature measurement is interfered by heating of the motor is solved, and the accuracy of intelligent temperature control is ensured. The suspended and insulated temperature detection assembly is arranged on the front mesh enclosure, and a sensor and a motor heat source are thoroughly isolated through a physical space and an air gap. The situation that the sensor misjudges the environment temperature due to waste heat of the motor is avoided, it is ensured that the fan can conduct logical operation according to real external air temperature data, and the reliability and safety of the temperature control system are improved in cooperation with NTC battery active protection.

The present application relates to the technical field of process optimization, in particular to a kind of collaborative optimization analysis method of multi-station tower cylinder welding.The present application is aimed at the problem that tower cylinder multi-station welding is difficult to be cooperatively controlled, first loads the multimodal perception data of weld visual, arc sensing, heat field distribution, welding voiceprint, constructs fusion evaluation model to obtain weld deviation and sensor confidence score, determines sensor health state according to threshold value, triggers corresponding fault-tolerant reconstruction control mode to obtain welding tracking control parameter, then loads multi-station welding heat source model, decouples heat interference in combination with control parameter and heat field data, cooperatively controls multi-station, outputs and executes collaborative control instruction, realizes welding process optimization.

The invention belongs to the technical field of glass processing, and discloses a multi-section independent precise temperature control heating system for a glass tempering furnace, the multi-section independent precise temperature control heating system comprises a furnace body, the outer wall of the furnace body is provided with a PLC, the left side and the right side of the furnace body are both provided with conveying frames, and the conveying frames are internally provided with a plurality of first conveying rollers; a plurality of second conveying rollers are arranged in the furnace body, the interior of the furnace body is sequentially divided into a plurality of independent heating sections in the glass conveying direction, a fireproof heat insulation plate is arranged between every two adjacent heating sections, and a gap allowing glass to pass through is formed in each fireproof heat insulation plate. According to the scheme, the furnace body is divided into a plurality of independent heating sections through the physical heat insulation plates, and independent temperature measurement and PLC control of each section are combined, so that heat interference among the sections is effectively reduced, closed-loop accurate control can be performed on each section strictly according to preset temperature rise, heat preservation and soaking curves, and accurate management of the heating process of glass in the length direction is realized.

The purpose of the present invention is to integrate a light-emitting element and a light-receiving element while suppressing thermal interference between the light-emitting element and the light-receiving element.　A package (100) is provided with: a substrate (120) on which a light-receiving element (111) is mounted; a base (130) on which a light-emitting element (142) is mounted and which is separated from the substrate (120); and a connection member (125) that connects the base (130) and the substrate (120). The connection member (125) may be extended in the horizontal direction from above the substrate (120) and connected to the base (130). The connection member (125) may be formed around the light-receiving element (111) on the substrate (120). The thermal conductivity of the connection member (125) may be 0.04 W / mK or less. The connection member (125) may be connected to the side surface of the base (130).

The invention discloses an intelligent defrosting control method for an air-cooled single-heat type air conditioning unit, which comprises the following steps: in a heat supply operation state, a low-pressure liquid refrigerant is output through an electronic expansion valve, sequentially flows through a mixing box and a refrigerant distributor to enter a plurality of first heat exchange assemblies, is collected to a gas collecting pipe after absorbing heat and gasifying, and then flows back to a compressor; when the system enters a defrosting mode, the multiple first heat exchange assemblies are sequentially switched to the defrosting state according to the set sequence, and the preferable sequence is that the assemblies with the thermal interference buffering function are arranged; a target assembly in a defrosting state receives a high-temperature gaseous refrigerant led out from an outlet of a condenser by opening a corresponding defrosting bypass electromagnetic valve, and the high-temperature gaseous refrigerant is led into a defrosting control valve and then enters a gas phase inlet; the refrigerant releases heat in the assembly to melt the frost layer to form a liquid state or a gas-liquid mixed state, and finally flows into the mixing box to be mixed with a liquid working medium output by the throttling device. According to the defrosting control method, the air conditioning unit can operate efficiently and stably without interruption of heating.

The application discloses a large-current passive equalization battery management device based on FPC-CCS and relates to the technical field of power batteries or energy storage batteries. In view of the problems of small equalization current, poor heat dissipation and difficult integration of the traditional passive equalization, the device sets a distributed serpentine copper foil resistance network in the FPC integrated layer, and the equalization current is improved to the 10A level. The core structure comprises a signal acquisition unit between flexible insulating film layers, a double-side parallel large-current equalization circuit and an external control module: the signal acquisition unit monitors the cell voltage in real time, and when the threshold value is exceeded, the serpentine resistance network is connected through a MOSFET switch to realize energy dissipation; the double-side layout cooperates with high-thermal-conductivity glue and the original heat dissipation system to make the temperature rise less than or equal to 40 DEG C and improve the heat dissipation area; the control IC is external to avoid thermal interference, and the overall thickness is small. The application solves the defects of large space occupation of discrete resistors and failure caused by high temperature, meets the rapid equalization demand of a high-capacity power battery system, and improves the integration degree and reliability.

The invention discloses a freezing cylinder assembly with an inner-cooling and outer-protecting structure and an ice cream machine comprising the freezing cylinder assembly. The freezing cylinder assembly comprises an inner barrel used for containing ice cream slurry, a refrigeration sleeve arranged in the inner barrel and provided with an evaporator attached to the inner circumferential face, and a stirring paddle arranged on the periphery of the refrigeration sleeve in a sleeving mode. The transmission shaft penetrates through the refrigeration sleeve and is connected with the stirring paddle; the shaft sleeve is arranged on the periphery of the transmission shaft in a sleeving mode, the front dynamic sealing assembly is arranged at the front end of the transmission shaft, and the outer barrel wraps the periphery of the inner barrel. Foaming layers are filled between the outer barrel body and the inner barrel body and between the refrigeration sleeve and the shaft sleeve, efficient inner cooling is achieved in the area, close to slurry, of the evaporator, meanwhile, an external heat insulation barrier is formed, the dual requirements for rapid forming and environmental heat interference resistance of high-viscosity ice cream are effectively met, and the technical contradiction that in the prior art, rapid forming and environmental heat interference resistance cannot be achieved at the same time is solved.

The application discloses a laser pipe cutting machine with a cooling system, the outer side of a laser cutting head is sleeved with a heat dissipation sleeve, the heat dissipation sleeve is internally provided with an inner water cavity and an outer water cavity in communication, the two water cavities are both provided with cold air pipelines, the bottom of the heat dissipation sleeve is connected with a gas blowing box, the bottom of the gas blowing box is connected with a sleeve ring which is sleeved on the lower part of the laser cutting head, and a cold water cavity is formed in the sleeve ring; a fixing seat is mounted on the outer side wall of a front chuck, and the inner ring of the fixing seat is provided with a water bag for cooling the pipe; in the application, cold air is blown downward after cooling the water body to scatter the hot air flow generated in cutting, and the hot interference is reduced; the outer water cavity accurately controls the water flow direction through the inflation amount of the air bag, and a closed circulation of 'extrusion-cooling-reflux-mixing' is formed, so that the cutting head is always kept in a low-temperature working state, the equipment life is prolonged, and the cutting stability is improved; the cutting hardening and oxidation problems of metal pipe materials such as stainless steel and aluminum alloy are effectively reduced, the heat affected zone is reduced, and the cutting quality is improved.

The invention belongs to the technical field of green chemistry, and particularly relates to a method for modifying a flexible ring region of nitrile hydratase and application of the method. The specific method comprises the following steps: carrying out double mutation on nitrile hydratase sites alpha D38 and alpha I152, or carrying out double mutation on nitrile hydratase sites alpha E157 and beta G197, or carrying out quadruple mutation on the nitrile hydratase sites alpha D38, alpha I152, alpha E157 and beta G197, so as to construct the nitrile hydratase mutant with improved thermal stability. The thermal stability of the nitrile hydratase modified by mutation is greatly improved. The mutant nitrile hydratase can keep the conformation and activity for a longer time, the resistance to external thermal interference is enhanced, and the half-life period for catalyzing an adiponitrile reaction is remarkably prolonged, which is the inherent excellent attribute of the mutant nitrile hydratase as a catalyst, and the mutant nitrile hydratase has important reference significance for research on improvement of the thermal stability of the nitrile hydratase.

The invention discloses a method and a device for measuring contact thermal resistance under a vacuum condition by taking an electron beam as a heat source, and relates to the technical field of thermotechnical measurement. The device comprises a vacuum cavity, an upper pressing plate with a through hole, an electron beam heating unit, a tungsten ingot, a sample piece stacking body formed by coaxially stacking a sample piece A and a sample piece B, a water cooling module, a heat insulation unit, a pressure applying unit, a temperature measuring unit and a control unit. The method comprises the following steps: heating a tungsten ingot by electron beams in vacuum, and establishing a steady-state temperature field through water cooling; acquiring steady-state temperature data under two different heating powers; a group of data is used as a reference, the interface temperature difference and the heat flux density are accurately solved by adopting a reference method in combination with the heat conductivity of the sample, and finally the contact thermal resistance is calculated. According to the method, the problems of air heat conduction interference, insufficient heat source power and large lateral heat loss in a traditional method are solved, and high-precision direct measurement of the contact thermal resistance of the solid interface under the vacuum, high-temperature and high-heat-flow conditions is realized.

This invention discloses a data center energy-saving scheduling method based on energy consumption correlation graphs, belonging to the field of data center energy-saving technology. It addresses the problems of lacking a quantitative model of inter-rack thermal interference during the cooling release window of a cold storage device and the inability to predict cooling costs during task scheduling. By reading the remaining cooling capacity of the cold storage device and combining it with the rack inlet air temperature and airflow velocity to generate an overcooling risk index, risk racks are marked. The response sensitivity is calculated by retrieving the fan speed baseline. A thermal interference diffusion graph is constructed with the overcooled risk racks as source nodes. The cooling cost of each rack is calculated to generate a task landing point avoidance set. The heat dissipation tasks are migrated to the rack with the minimum cooling cost to complete the landing point pre-adjustment. After the window ends, the actual cooling cost is collected and compared with the predicted value to generate a weighted deviation rate and correct the graph edge weights, realizing continuous adaptive updating of the graph and reducing the overall energy consumption of the data center.

The application provides an anti-interference multi-integrated MEMS tactile sensor and a manufacturing method thereof. The application comprises a substrate which is a wafer made of silicon; a temperature sensor located on the substrate; a pressure sensor located on the substrate; a thermal infrared detector located on the substrate; and a heat conduction sensor located on the substrate, wherein the heat conduction sensor comprises, from bottom to top, a lower silicon substrate, an upper silicon substrate, an electrically insulating layer and a concentric chromium / platinum film layer. The concentric chromium / platinum film layer in the application adopts a concentric square ring structure, and a certain space exists between the inner ring and the outer ring. This design can eliminate the temperature drift and bending / tension strain in the heat conduction sensor, and can also avoid the thermal interference of the inner ring on the outer ring. The application can realize multi-dimensional measurement of a contacted object, and can simultaneously sense the heat conductivity, contact pressure, external temperature and thermal radiation of the contacted object under the premise of low cost and small size.

This invention relates to the field of heat treatment equipment technology, specifically to an intelligent control device and method for the heat treatment process of large castings. It utilizes thermocouple sensors and atmosphere concentration sensors installed in the annealing furnace to collect data. By analyzing historical annealing data of qualified and unqualified products, it identifies the heat transfer relationship between different thermocouple regions. Combining the cumulative effect of abnormal influences at different stages in different regions, it sets temperature change thresholds for each region. This solution not only achieves precise control of local temperatures but also improves the uniformity of the overall temperature field and process stability during the annealing of large castings by compensating for thermal interference between regions.

The invention provides an AI-based intelligent whole-house temperature control method and system, and relates to the technical field of temperature control, and the method comprises the steps: obtaining regional physical data of a plurality of whole-house regional data of whole-house physical data, and generating a reference temperature control instruction for the regional physical data; carrying out regional environment acquisition and analysis on the whole house regional data, determining a temperature rise factor and a temperature drop factor which cause the temperature to deviate from the standard according to the acquired and analyzed data, and carrying out data fusion to obtain multi-factor fusion data; performing positive and negative influence analysis based on an AI model according to the multi-factor fusion data, performing temperature control offset analysis according to the positive and negative influence analysis data, generating regional temperature control adjustment data according to the temperature control offset analysis data, performing temperature control adjustment on the whole house regional data, and obtaining temperature optimization control data. According to the invention, global sensing, change prediction and collaborative optimization intelligent temperature control can be realized, so that the problem of thermal interference between regions can be solved fundamentally.

The application relates to the technical field of power equipment temperature monitoring, and discloses a cable branch box joint temperature rise monitoring method, which is used for solving the problems that the surface temperature is difficult to reflect the internal real temperature rise in time, early warning lag or missed report is caused, and the surface temperature of adjacent joints is abnormally high, which causes false report in traditional methods; the method first collects and checks the surface temperature of the joint, the box internal environment temperature and the load current, separates the environment temperature influence and the interphase thermal interference, compensates the surface temperature rise in combination with the heat transfer lagging relationship, then determines the internal temperature rise according to the structure heat transfer relationship and discriminates the abnormality of the change state, and accurate identification and timely early warning of the internal abnormal heating of the cable branch box joint are realized.

The invention discloses a dual-temperature cooperative control system and method for a photovoltaic module and an inverter and an air energy water heater. The dual-temperature cooperative control system of the photovoltaic module and the inverter comprises an inverter and heat dissipation module composed of the inverter and a first phase change material heat exchange structure, a photovoltaic module and heat dissipation module composed of the photovoltaic module and a second phase change material heat exchange structure, and a control monitor. A cooling working medium sequentially flows through the first phase-change material heat exchange structure and the second phase-change material heat exchange structure for heat exchange, then enters the heat exchanger for heat exchange and cooling, and circularly exchanges heat; and the control monitor monitors the working temperatures of the inverter and the photovoltaic module and controls the flow of the cooling working medium, so that the inverter and the photovoltaic module work at a safe temperature. Two phase-change materials with different phase-change temperatures are adopted to perform heat exchange on the inverter and the photovoltaic module respectively, and after the same cooling working medium performs heat exchange on the two phase-change materials, the problem of thermal interference between the inverter and the photovoltaic module is solved, and the conversion efficiency and the stability of the system are improved.

This utility model relates to a heat dissipation structure for a heating module circuit board, including a housing, a heat-conducting component, and a circuit board with a thyristor. Specifically: ① A partition in the housing separates the water tank and the mounting compartment, and the partition has heat-conducting holes; ② The heat-conducting component seals the heat-conducting holes and is in contact with the water flow; ③ The circuit board is located inside the mounting compartment, and the heat dissipation terminals of the thyristor are mounted on the heat-conducting component. This utility model utilizes active water flow for heat dissipation, solving the problem of heat accumulation in the thyristor within a compact space, while simultaneously isolating thermal interference to the temperature sensor; when applied to small liquid-containing electrical appliances such as smart toilets, it has advantages such as not occupying extra space, quiet operation, and high reliability.

The utility model provides a flange plate, and relates to the technical field of mechanical connecting pieces, the flange plate provided by the utility model comprises a lower plate body and an upper plate body, the lower plate body is connected with the upper plate body, and a cooling channel for circulating cooling liquid is formed between the lower plate body and the upper plate body; the cooling channel in the flowing direction of the cooling liquid comprises a plurality of curved channels which are sequentially communicated, the rotating directions of any two adjacent curved channels are opposite, and the lower disc body is provided with a first inlet communicated with the curved channel at the head end and a first outlet communicated with the curved channel at the tail end. The flange plate provided by the utility model has a better heat dissipation effect, ensures the safety and stability of equipment, and does not cause thermal interference to other components around.

The invention discloses a method for measuring the gas content in a die casting, and belongs to the technical field of material detection. The method comprises the following steps: loading a sample into the closed desorption cavity; vacuumizing and pre-degassing the cavity by using an oil-free high-vacuum acquisition module formed by connecting a molecular pump and a dry-type screw pump in series; stepwise heating is carried out on the sample through program temperature control; the released gas is guided into a differential pressure sensing metering unit through a low-thermal-conductivity aluminum oxide ceramic isolation tube; the unit comprises a reference cavity and a measuring cavity which are arranged in the same constant temperature device, and the gas inflow rate is dynamically represented by measuring the pressure difference between the two cavities; and based on the ideal gas state equation and a calculation model containing cavity thermal expansion compensation, calculating the amount of the gas substance in unit time in real time. The problems of poor precision and repeatability caused by oil pollution, thermal interference and discontinuous metering are solved, and continuous, dynamic and high-repeatability automatic measurement of the gas content in the die casting is realized.

This invention relates to the field of new energy thermal management systems, and more particularly to an integrated heat pump liquid storage and drying valve island system. The system includes an integrated valve island system, and a compressor, an air conditioning heating system, an external heat exchanger, an air conditioning evaporator, and a battery cooling evaporator, all connected to the integrated valve island system. High-pressure, vulnerable components of the heat pump system are individually integrated, facilitating system assembly while reducing maintenance and replacement costs. An architecture for the high-pressure section of the refrigerant in the heat pump system is designed for the integration of specific components, improving installation efficiency. A high-pressure side integrated architecture compatible with both direct and indirect heat pump systems is designed, with the high-pressure, high-temperature side arranged independently to eliminate the thermal interference of large integration on the low-pressure, low-temperature refrigerant. The integration of high-pressure, vulnerable components allows for easy disassembly of each component, reducing the overall system maintenance and replacement costs. This invention solves the technical problems of difficult repairs and high maintenance costs in existing thermal management systems after a failure.

The invention discloses a complex three-dimensional workpiece-oriented laser cutting path automatic planning and simulation method, and particularly relates to the technical field of laser cutting path planning, a region-level energy bearing reference set is established in the early stage of planning, so that a high-risk region can be recognized in advance, and the continuous machining probability of the high-risk region can be limited; through a thermosensitive cutting difficulty coefficient constructed by a track-related energy accumulation function and a curvature gradient, path planning can realize accurate local machining feasibility evaluation; by extracting the inter-segment thermal state vector including the temperature rise rate, the stress offset and the attitude sensitivity, the thermal interference propagation trend between the segments can be accurately described; by quantifying the thermal interference accumulation degree of multiple paths and comparing with a stable processing window allowed by a material, early warning of potential thermal field approaching risk is realized, and path rearrangement is automatically triggered when the risk occurs.

The invention relates to the technical field of high polymer material extrusion, in particular to a strong-stretching weak-shearing thread element and a preparation method, the strong-stretching weak-shearing thread element is used for high polymer material extrusion molding equipment, and the strong-stretching weak-shearing thread element comprises a shaft core and a thread section which is in interference fit with the shaft core through machining, key connection or hot charging; the ratio L / D of the thread lead (L) to the thread outer diameter (D) of the thread section is 2.5-6.0; the ratio e / D of the thread edge width (e) to the thread outer diameter (D) of the thread section is 0.06-0.20; the ratio H / D of the screw groove depth (H) of the thread section to the thread outer diameter (D) is 0.25-0.45; the top face of the thread edge of the thread section and the bottom face of the thread groove are in transition through an arc face with the large curvature radius, and the radius (R) of the arc face meets the condition that R / H = 0.4-1.2. The industrial problems that a traditional shearing-dominated thread element is prone to degradation and performance degradation when sensitive materials are machined are solved.

This invention discloses an intelligent control system for a multi-hot blast furnace cascade heating pyrolysis device, relating to the field of organic pyrolysis technology. The intelligent control system includes a pyrolysis furnace body sequentially divided into a preheating section, a main pyrolysis section, and a deep pyrolysis section along the material flow direction; three heating groups consisting of four hot blast furnaces; a temperature detection unit; and a control system. The control system is equipped with a multivariable decoupling control module. This module contains a decoupling matrix obtained by inverting the gain matrix measured through step response experiments. The actual control signal output to each hot blast furnace is the decoupling matrix multiplied by a feedback correction vector, thereby eliminating the coupling influence between the three temperature sections. This invention can effectively suppress thermal interference between multiple hot blast furnaces, making the three temperature sections independent, stable, and controllable, providing a foundation for subsequent cascade regulation and significantly improving pyrolysis efficiency and product quality.