12results about How to "Elimination temperature" patented technology

The application relates to a circulating air cooling temperature control device for a tea leaf extraction process and relates to the technical field of tea leaf processing, which comprises a device main body, a refrigeration circulation system, a temperature control chamber and an air flow circulation loop are arranged in the device main body, and a cold air distribution mechanism is arranged through a partition plate above the temperature control chamber; the cold air distribution mechanism comprises a carrier plate driven to lift by a screw rod and a guide rod, a dynamic sweeping structure is fixed below the carrier plate, the dynamic sweeping structure drives a movable air duct component to reciprocatingly fan sweep, the movable air duct component is linked with a guide flow component through a worm and a long and short supporting rod to make the guide flow component reciprocatingly stretch and shrink in the radial direction, and the guide flow component is driven by a gear and a rack to synchronously swing a plurality of blades inside the guide flow component to dynamically deflect the wind direction and can be completely closed. The application realizes the continuous sweeping of the cold air on the surface of an extraction container through multi-dimensional transmission, eliminates the cooling dead zone and temperature stratification, cooperates with a temperature sensor closed loop control, and significantly improves the temperature control uniformity, working condition adaptability and temperature control precision.

The utility model discloses a kind of quick cooling device for heat treatment furnace, specifically related to cooling device field, including rack, fixedly connected on the protection shell of rack, cover plate movably connected on the protection shell, fixedly connected in the heat preservation inner shell of protection shell, heater and fixedly connected in the air supply shell of heat preservation inner shell bottom, exhaust pipe is opened in cover plate, the bottom of heat preservation inner shell is opened with several circumferential arrangement's air jet, air supply pipeline is opened in air supply shell, air supply assembly is installed in air supply shell, flow guide assembly is installed on rack. The utility model is combined with the structure of bottom air supply and flow guide vane, simultaneously using flow guide assembly to drive flow guide vane to reciprocating swing synchronously, concentrated airflow is scattered and redistributed, eliminates the temperature gradient and cooling dead zone of each area in furnace, to significantly improve the quality problem such as deformation, cracking caused by uneven cooling, substantially improve product pass rate.

This invention discloses an intelligent monitoring system and method for steel wire rope safety, belonging to the field of non-destructive testing technology for steel wire ropes. The system includes a three-layer sensor array, a data acquisition and processing unit, a digital twin computing platform, and an intelligent diagnostic and early warning terminal. The three-layer sensor array consists of a pulsed eddy current-leakage magnetic flux composite sensor array, a fiber Bragg grating stress-vibration monitoring unit, and a machine vision surface defect detection module. The pulsed eddy current-leakage magnetic flux composite sensor array includes 12 sensing units evenly distributed along the circumference, employing a three-frequency time-division multiplexing method to achieve layered detection from the surface to the core, with penetration depths of 0.65 mm, 3.5 mm, and 8.5 mm, respectively. The fiber Bragg grating stress-vibration monitoring unit includes three optical fibers and 36 fiber Bragg gratings, reconstructing the three-dimensional stress state of the steel wire rope. The system fuses multi-source data using Dempster-Shafer evidence theory, achieving a false alarm rate of less than 2%, realizing real-time online monitoring and accurate life prediction of the steel wire rope.

The invention discloses a portable cigarette packet microwave moisture meter based on a compensation algorithm, which belongs to the technical field of material moisture nondestructive testing and comprises a planar microwave moisture sensor module, an array pressure sensor module, a data processing terminal and a multi-sensor cooperative compensation algorithm module deployed in the data processing terminal. The planar microwave moisture sensor module is used for detecting the dielectric property of internal tobacco leaves through the outer package of the tobacco bale in a non-contact mode and outputting initial measurement data of moisture of the tobacco bale. The consistency of measurement conditions each time is guaranteed through the pressure sensor, the influence of uneven density distribution in the tobacco bales is effectively compensated through combination of multi-directional measurement and a dynamic weighting algorithm, the overall measurement precision and repeatability are remarkably improved, non-contact and nondestructive detection is achieved through the planar microwave sensor, the tobacco bales and tobacco leaves are not damaged, and the measurement accuracy is improved. The detection speed is high, and the on-site real-time requirement is met.

The application discloses a kind of self-adapting temperature control type energy-saving waste mould steel metal electroslag remelting device, it is related to metal electroslag remelting technical field, including remelting furnace body, the outside lower portion of remelting furnace body is provided with bearing base;The inside of remelting furnace body is provided with remelting mechanism, and remelting mechanism contains remelting material cylinder;Wherein, the inside central position of remelting material cylinder is fixedly installed with remelting vertical pipe;The inside of remelting furnace body is provided with temperature control mechanism, and temperature control mechanism contains temperature control lining cylinder.The self-adapting temperature control type energy-saving waste mould steel metal electroslag remelting device, by the temperature control lining cylinder of remelting furnace body and temperature control uniform rod, for remelting material cylinder realizes the dispersion of internal and external heat, cooperate with the rotating remelting material cylinder and material uniform support auxiliary promotion waste mould steel heating uniformity, while electric heating box realizes internal temperature detection to eliminate artificial intervention error, and after melting, it is taken out to realize cooling and deoxidizing refining.

This invention proposes an apparatus and method for evaluating the thermal oxidative stability of liquid compounds based on pressure measurement, belonging to the technical field of chemical analysis experimental apparatus. The apparatus includes an oxygen supply unit, a reaction unit, a cooling unit, and a pressure measurement unit. The oxygen supply unit controls the vacuuming and oxygenation of the apparatus. The reaction unit achieves precise temperature control and homogenization of the reaction liquid through a high-temperature heating circulating bath and a magnetic stirrer. The cooling unit eliminates interference from volatile products on pressure measurement through a cryogenic trap. The pressure measurement unit collects system pressure data in real time using a high-sensitivity pressure transmitter and transmits it to a computer. The method involves evacuating the apparatus and then oxygenating it to a set pressure, heating and maintaining the reaction temperature, monitoring system pressure changes through the pressure transmitter, and recording data and calculating oxygen consumption on the computer. This invention can track the oxygen consumption rate in real time, reveal the oxidation pattern, and is suitable for rapid and accurate evaluation of the thermal oxidative stability of various liquid compounds.

The invention discloses a ventilation system energy-saving control method and system based on fuzzy prediction, and the method comprises the steps: capturing a heat storage state of an enclosure structure in real time through a nonlinear observation technology, carrying out the vectorization of the heat storage state into a thermal momentum feature representing the evolution trend of a temperature field, and endowing a fuzzy controller with the physical pre-sensing capability for physical environment evolution, and response lag compensation caused by the thermal capacitance effect of the building structure is realized. According to the scheme, the limitation that system inertia is simplified through a traditional algorithm is broken through, physical energy efficiency verification is carried out by introducing multi-dimensional self-adaptive fuzzy reasoning of thermal momentum compensation and combining the fan pressure flow characteristics and the surge boundary, the prediction precision under the dynamic fluctuation working condition of the temperature field is remarkably improved, and the prediction efficiency is improved. And temperature overshoot and energy consumption loss caused by response time sequence mismatch are effectively eliminated. Finally, deep coupling of control logic and building thermodynamic characteristics is achieved, and the dynamic robustness and the comprehensive energy-saving efficiency of the ventilation system are greatly optimized while the indoor comfort degree is guaranteed.

This invention provides a biodegradable modified coating, a modified knot plugging agent for fracturing, and their preparation method, belonging to the field of tertiary oil recovery technology. Specifically, the dense cross-linked network structure generated by the Schiff base reaction between gelatin (GL) and glutaraldehyde (GD) serves as a coating material for the knot plugging agent, providing it with high strength and stability without sacrificing its biodegradability. Furthermore, by changing the reaction conditions (immersion time and curing time) during the preparation of the coated knot plugging agent, a series of knot plugging agents adaptable to different reservoir temperatures and degradation cycles can be obtained to meet the complex conditions in perforation cluster plugging processes, thus broadening its application range.

The utility model relates to a composite material repair paving layer curing device which is characterized in that a repair paving layer is adhered to an area to be repaired, and the hot end of a thermocouple is transversely adhered to the edge of the repair paving layer in a sealing manner through a high-temperature adhesive tape; the stripping layer covers the repair paving layer and the thermocouple; the porous isolating membrane covers the stripping layer; the glass fiber cloth covers a porous isolating membrane; the non-porous isolating membrane covers the glass fiber cloth; the pressure equalizing plate is covered with a non-porous isolating membrane; the electric blanket covers the pressure equalizing plate; the breathing material covers the electric blanket; the vacuum base is diagonally placed on the breathing material; the vacuum film is bonded with a to-be-repaired part through a double-sided sealing adhesive tape to form a vacuum sealing bag and is connected with the vacuum base through a vacuum suction nozzle, and the vacuum suction nozzle is connected with an external vacuum pump. Compared with the prior art, the device has the advantages of high fitting degree of a repaired surface, high flatness, high reliability and the like.

The utility model provides a kind of dissimilar steel laser welding residual stress testing device, comprising: pedestal platform, three-axis movement module, drilling unit, strain measurement module and data processing unit;Pedestal platform uses aluminium alloy frame, built-in horizontal adjusting mechanism, three-axis movement module is driven by stepper motor, precision ±0.01mm, realize measuring point accurate positioning, drilling unit integrates high-precision electric spindle (rotating speed 0-10,000rpm adjustable), is equipped with diameter 2mm hard alloy drill bit, drilling depth is controlled in real time by laser displacement sensor, strain measurement module includes BE120-2CA type three-way strain flower and static resistance strain gauge, strain release data (epsilon 0, epsilon 45 , epsilon 90 ) after drilling are collected in real time, data processing unit is built-in embedded system, residual stress (sigma x , sigma γ ) is automatically calculated and generates stress distribution nephogram, by automation drilling and strain acquisition technology, the quick, high-precision measurement of residual stress of welded joint is realized, suitable for the quality evaluation and process optimization of dissimilar steel weld.

This invention provides a comprehensive, coordinated control method for reducing the total curvature of long, fixed-length small square billets. It covers three stages: continuous casting process optimization, cooling bed control, and slow cooling during stacking. Based on the metallurgical mechanism of bainitic phase transformation, a complete temperature control chain is constructed to systematically eliminate multiple sources of curvature, including uneven cooling, phase transformation stress, and additional stress from stacking. Compared with existing technologies, this invention requires no additional specialized equipment and, without significantly increasing production costs, ensures that the total curvature of small square billets is stably controlled within 60mm, with a curvature per meter not exceeding 10mm. This significantly improves product quality, production efficiency, and production safety, effectively solving technical problems such as difficulty in charging the heating furnace, rolling defects, high scrap rates, and increased production costs caused by excessive curvature of small square billets, thus providing qualified billets for subsequent steel rolling production.

This invention relates to the field of nanomaterial preparation technology and discloses a continuous preparation process for nano-titanium sol based on low-temperature crystallization and elemental doping. The process includes: preparing a clean metatitanic acid slurry; constructing a stable basic titanium solution containing hydrogen peroxide and lactic acid; preparing an active doping catalyst solution containing manganese and cerium; online merging the preheated basic titanium solution with the room-temperature catalyst solution, utilizing the chemical heat generated by the decomposition of hydrogen peroxide catalyzed by manganese ions to cause a temperature jump in the fluid, initiating crystallization; introducing the fluid into a tubular reactor for continuous microbubble crystallization under back pressure; and finally obtaining nano-titanium sol through flash pore formation and rapid cooling stabilization. This invention utilizes the internal heat of reaction to eliminate the heat transfer gradient, utilizes the microbubble barrier effect to inhibit agglomeration, and achieves uniform elemental doping through in-situ catalysis, solving the problems of low heating efficiency, easy agglomeration, and uneven doping in traditional processes. The resulting sol has uniform particle size and good dispersibility.