122results about How to "Fast temperature response" patented technology

The invention provides a simple and effective thermal management system of a water-cooling proton exchange membrane fuel cell and a control method of the thermal management system. The thermal management system mainly comprises an electric pile, a water tank provided with a heating device, a cooling water circulating pump, a radiator, a cooling water pile inlet temperature sensor, a cooling water pile outlet temperature sensor, a cooling water pile inlet pressure sensor and a controller of the thermal management system. The control method following pressure change is provided to overcome the defects of lag, great overshooting, system coupling and the like caused by temperature change tracking in the traditional control strategy. The radiator is mainly used for controlling the cooling water inlet temperature of the pile and mainly controls the rotating speed of a radiator fan according to the cooling water inlet temperature of the pile of the fuel cell; and the cooling water circulating pump is mainly used for controlling the cooling water flow in the whole thermal management system and mainly controls the rotating speed of the circulating pump according to the cooling water inlet pressure of the pile of the fuel cell.

The invention relates to a preparation method of a double-hydrophilic temperature response polymer. The method comprises the following steps of: (1) preparing aliphatic diacid divinyl ester; (2) dissolving the aliphatic diacid divinyl ester and glucose into an organic solvent, and adding bacillus subtilis alkali protease or lipase AY30 to obtain a polymerizable saccharine hydrophilic monomer; and (3) dissolving the polymerizable saccharine hydrophilic monomer, an N-isopropylacrylamide monomer and an initiator into an organic solvent, performing a polymerization reaction under the protection of nitrogen gas at the temperature of 50-80 DEG C to obtain a polymer, repeatedly precipitating, and performing vacuum drying on an obtained precipitant to obtain the double-hydrophilic temperature response polymer. The method is simple, has mild reaction conditions, is easy, convenient and practicable for operating, and is easy for industrializing; and the obtained double-hydrophilic temperature response polymer can be applied in the fields of medicament targeted conveying, gene delivery, biological separation, membrane science and the like.

A method and apparatus (5) for simulating and analyzing industrial thermal processes, including industrial heat-treatment, processes, melting, solidification, quenching and the like, used in the manufacture of metals, alloys and metal matrix composite components. The apparatus (5) includes an optional environmental chamber (10) used for situations where testing room conditions are too hot or too cold and would thus interfere with operation of the apparatus (5) without such chamber (10). The apparatus (5) includes a multifunctional excitation coil (40) that serves the function of the omitted environmental chamber (10). The apparatus (5) also includes one or more high frequency resonant inverters (15) and a cooling means (20). The apparatus (5) integrates melting and thermal processing capabilities with a thermal analyzer and a control system. The apparatus (5) allows for the rapid design and optimization of industrial thermal processes used in the manufacture of metallurgical engineering material with superior structural and metallurgical chactacterics, suitable for advanced component service performance.

The invention discloses a fossil power plant coordination control method based on multi-parameter prediction. Aiming at the characteristics that a boiler controlled object is lagged, slow in response process and the like, feedwater flow, coal supply quantity and steam turbine valve opening are estimated reasonably, deviation of main steam pressure and separator outlet temperature is predicted, and a main steam pressure control loop and a separator outlet temperature control loop are respectively formed, and are coordinated with a load control loop so as to form a fossil power plant coordination control system. Control quality of the fossil power plant coordination control system is effectively improved, main steam pressure fluctuation during load change is suppressed effectively while the load change is responded fast, deviation between main steam pressure and a setting value is reduced, the separator outlet temperature fluctuation is suppressed, and the situation that the separator outlet temperature is over high is reduced. Besides, the stability of a boiler control system and the operation efficiency of a unit are improved.

The invention relates to a distributed optical fiber temperature sensor calibration and correction constant temperature device and belongs to the optical fiber temperature measurement technical field. The distributed optical fiber temperature sensor calibration and correction constant temperature device is characterized in that the mechanical structure part of the device is composed of an optic fiber ring, a high-precision temperature sensor probe, middle heat conduction silica gel, a left semiconductor refrigeration sheet, a right semiconductor refrigeration sheet, left conduction silica gel, right conduction silica gel, a left heat dissipation sheet, a right heat dissipation sheet, a left heat dissipation fan and a right heat dissipation fan. The distributed optical fiber temperature sensor calibration and correction optic fiber ring is embedded into the designed mechanical structure, so that the modular calibration and correction constant temperature device can be formed. The calibration and correction constant temperature device has the advantages of quick temperature response and high stable temperature precision as well as high reliability, compact structure, convenient installation and the like in conditions having strict requirements for distributed optical fiber temperature sensor calibration and correction.

The invention relates to a dual-hydrophilic thermo-sensitive polymer / lactic acid polymer composite nanofiber felt and a preparation method thereof. The nanofiber felt comprises the following components: dual-hydrophilic thermo-sensitive polymer and lactic acid polymer with the mass ratio of 10:1. The preparation method comprises the following steps: (1) carrying out free radical polymerization reaction on glucaric acid divinyl ester and N-isopropyl acrylamide to obtain the dual-hydrophilic thermo-sensitive polymer; (2) dissolving the high polymer in a solvent, stirring for 1-4 hours, and carrying out ultrasonic degassing to obtain a spinning solution A; (3) dissolving the lactic acid polymer in the solvent, stirring for 1-8 hours, carrying out ultrasonic degassing to obtain a spinning solution B; and (4) mixing the spinning solution A with the spinning solution B, and carrying out electrostatic spinning to obtain the dual-hydrophilic thermo-sensitive polymer / lactic acid polymer composite nanofiber felt. According to the invention, the method is continuously feasible, the operation is simple and easy, industrialization is easy to realize, and the obtained nanofiber felt can be used for carrying medicines and control the release of the medicine; and the nanofiber felt can also be implanted into a release system and can be used in the fields of tissue engineering scaffold and the like.

The invention provides heating ceramic slurry, comprising a composite functional phase, an inorganic additive and an organic support. The composite functional phase includes a main functional phase and a TCR (temperature coefficient of resistance) adjusting phase. The main functional phase includes, but not limited to, one of or mixture of any of tungsten powder, molybdenum powder, manganese powder, silver powder, copper powder, nickel power, cobalt powder, titanium powder, chromium powder, and zinc powder; the TCR adjusting phase includes, but not limited to, one of or mixture of any of platinum powder, ruthenium powder, palladium powder, rhodium powder, osmium powder, iridium powder, germanium powder, and lanthanum powder or their oxides; the TCR adjusting phase accounts for 0.1-10% by weight of the main functional phase so that TCR of the heating ceramic slurry is kept to 1500 ppm / DEG C to 4000 ppm / DEG C. The heating ceramic slurry has low temperature coefficient of resistance and has delayed heating.

A system controls a multi-zone vapor compression system (MZ-VCS). The system includes a controller to control a vapor compression cycle of the MZ-VCS using a set of control inputs determined by optimizing a cost function including a set of control parameters. The optimizing is subject to constraints, and wherein the cost function is optimized over a prediction horizon. The system also includes a memory to store an optimization function parameterized by a configuration of the MZ-VCS defining active or inactive modes of each heat exchanger, the optimization function modifies, according to a current configuration, values of the control parameters of the cost function determined for a full configuration that includes all heat exchangers in the active mode. The system also includes a processor to determine the current configuration of the MZ-VCS and to update the cost function by submitting the current configuration to the optimization function.

The invention discloses a preparation method of a strawberry-like thermochromic energy storage material, comprising the steps of (1) mixing styrene, divinyl benzene, acrylic acid, glycidyl methacrylate, polyvinylpyrrolidone and paraffin, adding an emulsifier and an initiator, cooling, and centrifuging to obtain pure phase-change microspheres; (2) mixing a leuco body dye, an electronic acceptor compound and a solvent to form a mixture, heating the mixture, mixing well to obtain a solution, adding deionized water, tetraethyl orthosilicate, a silane coupling agent and an emulsifier, adding ammonia water under ultrasound to allow reacting, centrifuging, drying at low temperature to obtain thermochromic silicon capsule particles; (3) mixing the phase-change microspheres and the thermochromic silicon capsule particles to obtain a mixture, adding an emulsifier and a catalyst to allow reacting, centrifuging, and drying to obtain the strawberry-like thermochromic energy storage material. The strawberry-like thermochromic energy storage material has the advantages of high enthalpy, high thermosensitive response speed, irreversible color variation, cyclic repetitive color variation, good property stability and the like, can act as a novel intelligent material, and has a good application prospect in the fields, such as building, energy conservation, environmental protection, apparel, and medical services.

The invention provides a method for preparing quick-responding thermo-sensitive porous microspheres based on the microfluidic technology. A microfluidic chip used mainly comprises a polymer or a glass chip with a microchannel on the upper layer and a sealing substrate on the lower layer. The method includes firstly, forming oil-in-water micro-droplets (w / o) in the microfluidic chip by the droplet control technology, polymerizing the micro-droplets to form microspheres during moving or collecting process; and adding pore-forming agent polyethylene glycol in a water phase to control different porous morphologies of the microspheres so that different temperature response characteristics. The method for preparing the quick-responding thermo-sensitive porous microspheres based on the microfluidic technology has the advantages that the chip structure is simple to manufacture, the method is highly controllable and easy to operate, particle size of the microspheres prepared by the microfluidic technology is uniform and controllable, micro-pores on the surfaces of the microspheres are controllable are controllable in size, the method has the quick-responding thermo-sensitive characteristics and has wide potential application range, and the like.

The invention relates to a device used to solidify and thermally compose politef film, wherein it uses contact solidification method; it has heating roller to heat via internal several electric heating tubes; the surface temperature of roller can be adjusted until 450Deg. C; the politef film or polyurethane- politef can be drawn together to compose the politef above the heating roller. The invention can solidify film uniformly, with low energy consumption. And it arranges one high-temperature resistant rubber roller above the roller; when roller rotates, it will rotate the high-temperature resistant rubber roller, to thermally compose the politef film and support material at certain temperature and pressure. The invention can avoid the aging problem of adhesive to reduce the cost.

The invention relates to a method for encapsulating a fiber Bragg grating temperature sensor, which aims to isolate external stress and strengthen the stability of the sensor. In the method, coating layers on both sides of a grid region of a fiber Bragg grating are removed to expose optical fibers, the optical fibers are cleaned by acetone, and both ends of the fiber Bragg grating are in welded connection with both ends of the optical fibers in an optical cable by using a welding machine; the fiber Bragg grating and an optical cable armor layer are fixed on a groove-shaped metal strip, the fiber Bragg grating and pigtails are in a loosing state, then bonding points at both ends of the groove-shaped metal strip are stuck with the optical fibers firmly, and heat-conducting silicone grease is filled into gaps; the encapsulated groove-shaped metal strip is put in a stainless steel encapsulation shell, steel wires in the transmission optical cable are pressed into symmetrical grooves in the stainless steel encapsulation shell to ensure that the fiber Bragg grating and the pigtails are in a loosing state in the encapsulation shell, and then the heat-conducting silicone grease is filled into the encapsulation shell.

The invention belongs to a quick-heat-conduction multi-point armoured thermocouple (thermal resistor), which consists of a junction box, a protective casing and temperature measurement elements. The protective casing consists of an upper protective casing and a lower protective casing; the upper end of the upper protective casing is fixedly arranged on the junction box coaxially; the temperature measurement elements are fixedly arranged on the junction box coaxially and are arranged in the protective casing; the temperature measurement element in the lower protective casing is positioned and arranged on a conductive sliding block; and the conductive sliding block slides radially and is arranged on an inner wall of the lower protective casing. The thermocouple (thermal resistor) has quick response to the temperature measurement, relatively high accuracy and safety of the temperature measurement, relatively low maintenance and repair cost and convenient construction, and is quick-heat-conduction multi-point armoured thermocouple (thermal resistor) with relatively strong innovation.

The invention discloses a super-stretchable graphene electro-thermal film and a preparation method thereof. The electro-thermal film is formed through knitting graphene fibers with a spiral structure; the fibers not only have ultrahigh elongation at break, and can realize rapid response on a high temperature of 30-420 DEG C under safety voltage of 0.5-5V. The preparation method is simple and specifically comprises the following steps: after chemically reducing graphene oxide, carrying out heat treatment in a high-temperature furnace at 500-3000 DEG C to obtain a graphene film; after uniformly winding, obtaining graphene fibers; and knitting the graphene fibers to obtain the graphene electro-thermal film. The graphene electro-thermal film has ultrahigh heating speed and cooling speed, and ultrahigh temperature response; the working voltage is relatively low so that the graphene electro-thermal film can be used for human bodies and is used as human body heating cloth; and the graphene electro-thermal film has a stretchable property so that the graphene electro-thermal film can be adaptive to the movement of the human bodies, such as muscle stretching, in a utilization process, and furthermore, the graphene electro-thermal film can be widely applied as an intelligent electro-thermal material.

Disclosed are a flexible liquid crystal thin film material having the transmittance varying with the temperature and a film preparation method. Nematic liquid crystal, a chiral compound, biphenyl cyanogen liquid crystal, a liquid crystal polymerizable monomer, an acrylate monomer, glass beads, and an initiator are mixed according to a certain ratio and are uniformly stirred at 20-50 DEG C, the obtained mixture is poured into the middle part between two layers of polyester films coated with ITO conducting layers, the obtained film is subjected to rubber roll extrusion, and the obtained liquid crystal film is subjected to ultraviolet light polymerization in a power-on state so as to obtain a flexible liquid crystal thin film having the transmittance varying with the temperature. The prepared flexible liquid crystal thin film is transparent at a low temperature, the transmittance of the film increases as the temperature rises, and when the temperature reaches a certain value, the thin films converts to a transmittance state from the transparent state. The thin film has the characteristics of high response speed, high contrast and high infrared light and ultraviolet light resisting rate, can be applied to the fields of buildings and automobiles, and is an excellent energy-saving material. The film preparation method plays a significant part in promotion of development process of a thin-film material.

The invention discloses a solid engine adhesion interface loaded state monitoring device, which comprises stress-temperature sensors arranged on the inner wall of a solid engine, a stress transmitter which is arranged outside the solid engine and connected with the stress-temperature sensor by means of lead wires, and a data acquisition device and an excitation power supply which are connected with the stress transmitter. Different from the prior art, the solid engine adhesion interface loaded state monitoring device is characterized that the number of the stress-temperature sensors is nine, the stress-temperature sensors are of a plane membrane cylindrical structure, the diameter of each sensor is less than or equal to phi 15 mm, the thickness thereof is less than or equal to 3 mm, the lead wires are insulated flat connecting lines with a width of 3 mm and a thickness of about 0.1 mm; and the solid engine adhesion interface loaded state monitoring device is embedded in a thermal insulation layer / lining interface of a solid rocket engine. Compared with the prior art, the solid engine adhesion interface loaded state monitoring device is easy to install, does not affect a powder charge stress field, has high precision and stability, and can monitor the required data information comprehensively, has low influence on strength property, storage property and operating property of an engine adhesion interface after being embedded, and does not cause destructive impact on the structure of the engine.

The method for assisting lysozyme renaturation with temperature-sensitive poly N-isopropyl acrylamide gel includes the following steps: 1) compounding poly N-isopropyl acrylamide gel aqua; 2) preparing poly N-isopropyl acrylamide gel in reverse suspension process; and 3) assisting lysozyme renaturation with temperature-sensitive poly N-isopropyl acrylamide gel. The temperature-sensitive poly N-isopropyl acrylamide gel the present invention develops as one novel additive for extracorporeal renaturation of protein can raise the lysozyme activity recovering rate. The gel has high efficiency, less renaturation affecting parameters, convenient operation, relax requirement in instrument and apparatus, easy separation and recovery and other advantages. The present invention has excellent application foreground in extracorporeal renaturation of protein.

The invention discloses a temperature-sensitive combination electrode. The temperature-sensitive combination electrode comprises an electrode active material, a temperature sensitive material and an adhesive, wherein the temperature sensitive material has dual effects of an electrode conducting agent and a temperature sensitive characteristic. At a normal operating temperature, the prepared temperature-sensitive electrode has high electrical conductivity, and electrochemical performance of the temperature-sensitive electrode is basically consistent with that of a conventional electrode; at a high temperature exceeding 100 DEG C, resistance and electrical conductivity of the temperature-sensitive combination electrode suddenly rise by more than three order of magnitudes, so that electrochemical capacity is suddenly decreased, and the thermal shutdown characteristic occurs; therefore, thermal runaway is inhibited, and the safety of a battery under misuse conditions such as overcharge, overheating and mechanical short circuit is improved. In addition, the temperature-sensitive combination electrode disclosed by the invention has the characteristics of being simple in preparation process, completely compatible with the conventional pole piece and battery manufacturing process, and the like.

The invention discloses a quasi-distributed temperature measurement optical cable built in a smart cable. The quasi-distributed temperature measurement optical cable comprises an outer sheath, a metallic armored layer, and a grating fiber merging tape. The metallic armored layer is disposed in the outer sheath. The grating fiber merging tape is disposed in the metallic armored layer and comprises multiple sensing fibers. The gratings of the sensing fibers are arranged in a staggered way in order that the density of temperature measurement points is set as required. The grating fiber merging tape increases the density of temperature measurement points on the temperature measurement optical cable, and solves a temperature measurement error due to over large deviation between the temperature measurement points and a heat source.

The invention relates to the field of medical equipment, discloses an adhesive body temperature measurement device and aims to provide a temperature measurement device capable of quickly responding to temperature changes. The technical scheme includes that the adhesive body temperature measurement device comprises a heat transferring metal sheet, a temperature sensor, an annular flexible pad, an adhesive surface protecting film and a substrate. One surface of the annular flexible pad is coated with an adhesive, the temperature sensor is fixed to the heat transferring metal sheet and positioned at a through hole in the center of the annular flexible pad, and the heat transferring metal sheet covers one surface of the annular flexible pad. The adhesive covers one surface, on the same side of the heat transferring metal sheet, of the annular flexible pad. The substrate covers the other surface, on the same side of the temperature sensor, of the annular flexible pad and is fixed to the same. The annular flexible pad is provided with a wiring groove, one end of the wiring groove is open towards the outside, and a lead of the temperature sensor is positioned in the wiring groove and led outside from the wiring groove.

Temperature-responsive amphipathic glycopeptides and temperature-responsive micelles are provided by utilizing oligopeptide. A synthesized glycopeptide that does not occur naturally and is represented by the following chemical formula (1), and a temperature-responsive micelle composed of the glycopeptide are provided.(where x is any amino acid residue, L1 and L2 are linkers, SUGs are sugar chains, m is 0 or 1 and n is an integer from 1 to 10, and L1 and L2 may be identical with or different from each other and SUGs may be identical with or different from each other.)

The invention provides a device and method for measuring the hearth temperature of a coal gasification furnace with a double-layer furnace body. In the device provided by the invention, a sensor fixing piece is installed on an inner furnace wall; the ends of a temperature measuring sensor are fixed on the sensor fixing piece after being arranged in an inner hearth; an outer furnace wall flange hole is formed on an outer furnace wall; a flange is connected with the outer furnace wall flange hole; an electric connector is assembled on the flange; after a sensor compensating line which is connected to the tail end of the temperature measuring sensor passes through the outer furnace wall, the positive and negative ends of the sensor compensating line are respectively connected with two plugs; the two plugs are fixed on the electric connector and connected with conducting lines in the electric connector; the temperature change in the inner hearth is converted into electric signals capable of being measured through the temperature measuring sensor and input into the electric connector through the sensor compensating line; and the signals are transmitted to a temperature measuring circuit outside the furnace body through an outgoing line of the electric connector to be measured. The device and method provided by the invention have the advantages of high response speed, high accuracy and long service life, guarantees the reliability and guarantees the stability and accuracy of signal transmission.

The invention belongs to the technical field of temperature measurement, and relates to an oxygen barrier material in a tungsten-rhenium thermocouple anti-oxidation coating structure, and applicationof the oxygen barrier material. The oxygen barrier material is of a multilayer structure with a total thickness of 50-200 mu m. The oxygen barrier material in the multilayer structure has compositional gradients and concentration gradients, ie, thermal expansion coefficients of materials in layers of the oxygen barrier material are gradually increased in a direction away from a tungsten-rhenium thermocouple base body, and oxygen erosion resistance of the materials in layers of the oxygen barrier material is gradually increased in a direction away from the tungsten-rhenium thermocouple base body through adjusting types or proportions of the materials in each layer, thereby increasing the adhesive force of a high-temperature anti-oxidation coating of a tungsten-rhenium thermocouple, and reducing stress of the high-temperature anti-oxidation coating of the tungsten-rhenium thermocouple.

The invention discloses a thermal-stimulated fluorescence / visible light color double-response capsule and a synthesis method thereof, and belongs to the technical field of chemical synthesis. Through specific molecular structure design, 4-dimethylamino salicylaldehyde and dimethyl malonate are subjected to grafting reaction to prepare chromophoric molecules with a plurality of unsaturated functional groups, the chromophoric molecules are mixed with a phase change material to realize optical double-response reversible output of solvent phase state regulation, and compared with a conventional three-component organic thermal response material, the product only needs two components, namely chromophoric body molecules and a phase change solvent, so that the preparation process is simplified, and the performance stability is high. After microcapsule coating, the material is free from influence of adverse environment, and the performance is stably maintained, so that long-term stable use is realized.

The invention discloses a transformer temperature controller based on optical fiber temperature measurement. The transformer temperature controller is characterized in that: an optical fiber from an optical fiber temperature measurement host to an optical fiber temperature measurement probe is sequentially sleeved with a metal hose, a guiding long pipe and an optical fiber protective cover, wherein the metal hose is connected with the guiding long pipe through a fixing piece and a joint thread; a mounting screw is sleeved on the guiding long pipe, a mounting nut is connected with an external thread of the mounting screw, the lower end of the mounting nut is provided with an external thread used for being connected with a temperature measuring blind pipe of the transformer, the upper end ofthe mounting nut is provided with a circle of boss, and a sealing gasket is fixed below the boss; the lower end of the optical fiber protective cover is connected with a thermal simulation shell in an internally threaded manner, an inner core fixed by a clamp spring is arranged in the thermal simulation shell, the bottom of the thermal simulation shell is provided with a cover bottom, the centerof the inner core is provided with a temperature measuring hole with the built-in optical fiber temperature measurement probe, a heating coil is wound outside the inner core, and the heating coil is connected with a current transformer through a wire arranged in the metal hose, the guiding long pipe and the optical fiber protective cover.

The invention discloses a water tank type steam boiler, comprising a bucket, a heating device fixed in the bucket, a dual metal slice on the bucket, a steam exhaust pipe on the bucket, a water injection port and an installation hole of the heating device, wherein the heating device is installed in the installation hole of the heating device and composed of a box plate in the installation hole of the heating device and a ceramic heater conductively contacting with the box plate and the ceramic heater is a novel electric heating element formed by directly printing a resistor on an alumina billet, vacuum laminating it and baking it at 1600 DEG C. Because the surface of the electric heating element is insulated, the heating resistor is isolated from the air to greatly increase the service life. The heating element belongs to the surface heating and the surface temperature is uniformed and quickly increased, thus the ceramic heater is an energy saving product with high insulation intensity, large volume resistor, safety and reliability. The box plate is made of stainless steel, thus water scale does not occur without no danger for the human and the durability is increased.

The invention discloses an intraperitoneal hyperthermic perfusion chemotherapy instrument in operation, belonging to the technical field of medical instruments. The intraperitoneal hyperthermic perfusion chemotherapy instrument in operation comprises a heating device, a control device, a man-machine interaction device, a chemotherapy liquid collection bag, two adjustable speed peristaltic pumps, two T-junction dividers and a plurality of sensors, wherein the heating device comprises a heating plate and a heating bag, the heating plate and the heating bag are tightly stuck, the heating plate is connected with the control device to transfer heating temperature control information, and the inlet and the outlet of the heating bag are respectively provided with a temperature sensor. The invention has simple structure and convenient operation; the heating plate is utilized to carry out heat exchange so as to evenly heat, and the chemotherapy liquid is only sealed and circulated in the pipeline, which is clean and reliable; and the chemotherapy liquid collection bag can effectively collect and manage the chemotherapy liquid, and a DSP processor has precise temperature control and obvious curative effect.

The invention discloses a thermochromic material to fluorescence or visible light and a preparation method and application thereof. The material refers to the thermochromic material to fluorescence orvisible light, which is prepared by the steps of forming modified rhodamine B compound from rhodamine B and an alkyl amine compound under the effect of a coupling reagent and an activator, and combining the modified rhodamine B compound with an electron acceptor compound and an enhancement agent. The thermochromic material has both thermochromic functions to fluorescence and visible light, and also has the advantages such as fast response to temperature, reversible color changing, cyclic repeat changing color and stable performance. The thermochromic material can be used as new intelligent material having vast application prospect in the field of security, encryption, clothing and medicine.