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40results about How to "Large thermal inertia" patented technology

Composite heat dissipation device

The invention discloses a composite heat dissipation device. The device comprises a flat plate heat tube and multiple sandwiched phase transition material composite boards. The evaporation end of the flat plate heat tube is used for taking heat from a heating element. The condensation end of the flat plate heat tube is connected with base parts of the sandwiched phase transition material composite boards. A multi-hole capillary liquid adsorbing core layer is arranged on the inner wall of the evaporation end. A bionic capillary liquid adsorbing core is arranged on the multi-hole capillary liquid adsorbing core layer. Each sandwiched phase transition material composite board comprises an enclosed inner cavity. Phase transition materials are arranged in each inner cavity. The side wall of each inner cavity is a metal plate. According to the invention, the flat plate heat tube with the capillary liquid adsorbing core has good temperature averaging ability; through the phase transition materials, temperature peaks are inhibited, so normal work of the whole electronic device is ensured; and through the integrated design of the flat plate heat tube and the sandwiched phase transition material composite boards, contact thermal resistance between a traditional flat plate heat tube and a heat sink is eliminated. In one word, the heat dissipation device is better in temperature averaging ability, stronger in heat dissipation ability, high in safety and simple to process.
Owner:淳铭散热科技股份有限公司 +1

Monitoring method and optimal control method for supercritical circulating fluidized bed (CFB) boiler combustion signals

The invention discloses a monitoring method and an optimal control method for supercritical circulating fluidized bed (CFB) boiler combustion signals. The monitoring method comprises the following steps of: step 1, acquiring and pre-processing field data, and determining an auxiliary variable of an instant combustion carbon quantity model; step 2, building the instant combustion carbon quantity model based on mechanism modeling and data analysis hybrid modeling, and estimating the storage amount of instant combustion carbon in a hearth through a generalized Kalman filter information fusion technology, wherein the instant combustion carbon quantity model is shown in the description; and step 3, building a dynamic heat signal model, a hearth bed temperature signal model and a hearth outlet oxygen signal model through the instant combustion carbon quantity, and predetermining heat, bed temperatures and oxygen. The methods provided by the invention can accurately measure signals of heat, bed temperatures, oxygen and the like of a supercritical CFB boiler in real time, so that the optimal control on supercritical CFB boiler combustion is realized, and the combustion stability of the supercritical CFB boiler is improved.
Owner:NORTH CHINA ELECTRIC POWER UNIV (BAODING)

Tea green-removing machine and fuzzy control method thereof

ActiveCN101990960AControl the heating temperatureFully heatedPre-extraction tea treatmentCombustorInput control
The invention discloses a tea green-removing machine and a fuzzy control method thereof. The method comprises the following steps of: heating a barrel of the tea green-removing machine by using a combustor, wherein T is a given temperature value, a feedback value Tt is the current temperature value of the outer wall of the barrel of the tea green-removing machine, and temperature difference E is equal to Tt-T, and a temperature difference change rate EC is equal to Tt-Tt-1, the first input quantity of a fuzzy controller is Ke*E, and the second input quantity of the fuzzy controller is KC*EC; the output quantity of the fuzzy controller is U, and the input control quantity of the tea green-removing machine is KU*U, and the Ke, KC and KU represent a temperature difference ratio factor, a temperature difference change ratio factor and a control quantity ratio factor respectively; and the input control quantity KU*U is a voltage signal of an electromagnetic valve, namely the voltage signalloaded in an electromagnetic coil in the electromagnetic valve which is used for controlling the flow of the combustible gas in the combustor. The tea green-removing machine and the fuzzy control method thereof have the advantages that: the implementation is easy; the automation degree is high; and the tea green-removing effect is good.
Owner:CENT SOUTH UNIV

Device for constant high-temperature treatment prior to garbage incineration and flue gas purification

The invention relates to a device for constant high-temperature treatment prior to garbage incineration and flue gas purification. After garbage is incinerated by a garbage incinerator, according to a generated flue gas treatment process, dioxin components in flue gas are removed under a constant high-temperature state, and subsequent flue gas purification treatment is carried out. The device is used for a constant high-temperature removal process of the dioxin components in the flue gas, and belongs to the application range of the garbage incinerator in the technical field of boilers. The flue gas is heated by using a shaped high-temperature composite phase-change heat storage material, the isothermal phase change temperature of the shaped high-temperature composite phase-change heat storage material is 850 DEG C, feedback is carried out by virtue of a flue gas heat sensor, the shaped high-temperature composite phase-change heat storage material is automatically and electrically heated prior to garbage incineration or under the condition that the temperature of the flue gas is lower than 850 DEG C, the staying time of the flue gas in a high-temperature pipeline being 850 DEG C is controlled to be longer than 6s, the staying time of the flue gas being 850 DEG C is farther longer than the staying time, namely 2s, specified by national standards, and the dioxin components in the flue gas are thoroughly removed.
Owner:WUXI ZHONGHEHE ENVIRONMENTAL PROTECTION TECH

Aerogel gradient thermal insulation material containing endothermic opacifying agent

The invention provides an aerogel gradient thermal insulation material containing an endothermic opacifying agent. The aerogel gradient thermal insulation material comprises 3-5 layers of thermal insulation layers, wherein each layer is composed of a SiO2 aerogel, reinforcing fiber doped therein and a core-shell structure opacifying agent. Specifically, the opacifying agent shell is an opacifyingmaterial, and the core is a phase-change material. The aerogel matrix has low thermal conductivity and can suppress heat conduction. The opacifying shell can inhibit radiative heat transfer. The phase-change material absorbs heat in the melting process and improves the thermal inertia of the material. Therefore, the material has the characteristics of low thermal conductivity, low radiation heat transfer capacity, large apparent specific heat and the like, greatly improves the high-temperature and short-acting heat insulation performance of SiO2 aerogel, can meet the high-temperature and short-acting heat insulation requirements of aerospace, military use and the like, and also meets the long-acting heat insulation requirements of industrial high temperature thermal protection and the like. By adding the fiber and endothermic opacifying agent, the aerogel gradient thermal insulation material provided by the invention solves the low strength, phase-change material leakage after melting,high thermal conductivity, infrared light transmission and the like in existing latent heat type thermal insulation materials, and has strong practicability.
Owner:XI AN JIAOTONG UNIV

Wall body intelligent heat-insulation building envelope

The invention discloses a wall body intelligent heat-insulation building envelope, which is characterized in that the building envelope comprises an outer wall thermal reflecting coating layer, a plaster layer, a foamed cement infrared-shielding heat-insulation layer, an adhesive layer, a wall body base material layer, an inner wall leveling mortar layer, a putty layer and a phase-change inner wall coating energy storage layer sequentially from outer side to inner side, wherein a glass fiber net layer is covered in the plaster layer. The outer surface of the outer wall thermal reflecting coating layer is coated with a photocatalyst purification layer. The arranged outer wall thermal reflecting coating layer has a heat-insulation effect, and meanwhile the arranged foamed cement infrared-shielding heat-insulation layer realizes integration of safe, energy-saving, durable, green and environment-friendly performances and has a better heat-insulation effect; the phase-change energy-storage building material has greater phase-change latent heat, and can store and release heat energy so as to realize an intelligent heat-insulation effect; finally, the outer surface is coated with the photocatalyst purification layer which has an outer wall purification and cleaning effect.
Owner:JIYUZHE XIAMEN MATERIAL TECH CO LTD

Coaxial laser with wavelength calibration and light source core thereof

PendingCN109950788ASmall thermal diffusivityImprove temperature control stabilityLaser detailsSemiconductor laser structural detailsHeat sensitiveThermistor
The invention relates to a coaxial laser with wavelength calibration and a light source core thereof. The coaxial laser comprises a TO tube base, a TEC refrigerator, heat conduction cushion blocks, analuminum nitride cushion block, a laser chip, a thermistor and a TO pin. The TEC refrigerator, the laser chip and the thermistor are all electrically connected with the TO pin. The main optical axisof the laser chip is coaxial with the central axis of the TO tube base. The TEC refrigerator comprises a temperature control cold face and a heat dissipation hot face. The heat conduction cushion blocks are welded to the temperature control cold face. The heat conduction cushion blocks comprise a first cushion block and a second cushion block. The first cushion block is fixedly arranged on the upper surface of the second cushion block. The second cushion block is arranged on the upper surface of the TEC refrigerator. The thermal diffusion coefficient of a material for manufacturing the first cushion block is greater than 40mm <2>/s. The thermal diffusion coefficient of a material for manufacturing the second cushion block is less than 10mm <2>/s. The invention not only effectively solves the problem of poor indicating value stability of the existing coaxial laser, but also truly realizes the wavelength self-calibration function. The coaxial laser effectively improves the TDLAS gas detection precision, and is more suitable for a TDLAS gas detection system.
Owner:席金波

Clamp special for detecting thermocouple and method for detecting thermocouple

The invention discloses a clamp special for detecting a thermocouple. The clamp comprises a clamp body A and a clamp body B connected together. The clamp body A is used for being connected with the positive electrode of the thermocouple, the clamp body B is used for being connected with the negative electrode of the thermocouple, and the clamp body A and the clamp body B are both provided with spring clip structures. Clip mouths are arranged at the front ends of the spring clip structures, and metal materials good in heat conducting property are adopted by an inner core of the clamp body A, an inner core of the clamp body B and clamping openings of the clip mouths of the clamp bodies. The clamp body A and the clamp body B are connected in a contact mode and are insulated from each other. A temperature sensor is arranged in the tail end of the clamp body B and is connected with external electrical logging equipment through a data wire. Signal lines are welded to the metal tail ends of the inner cores inside the clamp body A and the clamp body B and connected to the external electrical logging equipment. Compared with an existing detecting device and method, the clamp is reasonable in structure design, convenient to operate and use, simple in measuring process and high in measuring precision.
Owner:泰安磐然测控科技有限公司

Efficient and energy-saving oolong tea refined-baking and aroma-enhancing machine

The invention relates to an efficient and energy-saving oolong tea refined-baking and aroma-enhancing machine. According to the machine, an electric heater is a cylindric thin-shell-type electric heating unit; a baking chamber formed by the inner cavity of the electric heater has uniform temperature distribution; and after tea leaves are added, by utilization of rising thermal currents in an oven body, dehumidification is performed automatically and the temperature distribution is further uniformed without a need of forcing air to flow to produce dehumidification and thermal conduction. Electric heating units of common electrothermal baking ovens conduct thermal to tea leaves through heat conduction of air flow, and therefore high-aroma compounds produced in baking processes are taken away by the rapid-flowing air flow, effective components are prevented from easy accumulation and reaction, and formation of aroma is hindered. The machine provided by the invention overcomes the above disadvantages of the common electrothermal baking ovens. According to the machine provided by the invention, a tea leaf oven is drove by a driving device, and therefore tea leaves can be turned over automatically, and the machine has no disadvantage of large labor intensity as electrothermal baking cages in which tea leaves are turned over repeatedly. By utilization of double-layer heat preservation and insulation layers comprising the inner heating device and a housing, and a heat exchanging manner of unforced convection, the machine provided by the invention has an advantage of significant energy saving effects over the electrothermal baking ovens and the electrothermal baking cages and 30-40% of energy can be saved.
Owner:李祥龙

Tea green-removing machine and fuzzy control method thereof

ActiveCN101990960BControl the heating temperatureFully heatedPre-extraction tea treatmentCombustorInput control
The invention discloses a tea green-removing machine and a fuzzy control method thereof. The method comprises the following steps of: heating a barrel of the tea green-removing machine by using a combustor, wherein T is a given temperature value, a feedback value Tt is the current temperature value of the outer wall of the barrel of the tea green-removing machine, and temperature difference E is equal to Tt-T, and a temperature difference change rate EC is equal to Tt-Tt-1, the first input quantity of a fuzzy controller is Ke*E, and the second input quantity of the fuzzy controller is KC*EC; the output quantity of the fuzzy controller is U, and the input control quantity of the tea green-removing machine is KU*U, and the Ke, KC and KU represent a temperature difference ratio factor, a temperature difference change ratio factor and a control quantity ratio factor respectively; and the input control quantity KU*U is a voltage signal of an electromagnetic valve, namely the voltage signal loaded in an electromagnetic coil in the electromagnetic valve which is used for controlling the flow of the combustible gas in the combustor. The tea green-removing machine and the fuzzy control method thereof have the advantages that: the implementation is easy; the automation degree is high; and the tea green-removing effect is good.
Owner:CENT SOUTH UNIV

Pellet shaft furnace waste heat comprehensive recovery device

Disclosed is a pellet shaft furnace waste heat comprehensive recovery device. The pellet shaft furnace waste heat comprehensive recovery device comprises a sintered pellet belt cooling machine waste heat recovery device and a steam-water separation device. The sintered pellet belt cooling machine waste heat recovery device comprises a heat exchange device. The heat exchange device comprises a box body, a superheater, an evaporator and an economizer, wherein the superheater, the evaporator and the economizer are arranged in the box body in sequence in the smoke flowing direction. A water outlet and a water inlet of the economizer are communicated with the steam-water separation device and a water supply pipeline through pipelines respectively. A water outlet and a water inlet of the evaporator are communicated with a water inlet and a water outlet of the steam-water separation device through pipelines respectively. A steam outlet and a steam inlet of the superheater are communicated with a steam outlet of the steam-water separation device and a user steam pipeline through pipelines respectively. The pellet shaft furnace waste heat comprehensive recovery device further comprises a drying bed girder waste heat recovery device and an air guide wall girder waste heat recovery device. By the adoption of the pellet shaft furnace waste heat comprehensive recovery device, the smoke waste heat is utilized in a gradient mode, and the heat transfer loss caused by the temperature difference is reduced to the greatest extent; and meanwhile, saturated steam is turned into superheated steam, the quality of the steam is improved, and the follow-up efficient and stable utilization of the steam is achieved.
Owner:HUATIAN ENG & TECH CORP MCC

A self-controlled operating room transfusion heat preservation nursing control device

The invention discloses a self-control operating room transfusion heat-insulating nursing control device, comprising a shell, wherein a main medicine delivery device and an auxiliary medicine delivery device are arranged on the surface of the shell sequentially; a main syringe is arranged in the main medicine delivery device and an auxiliary syringe is arranged in the auxiliary medicine delivery device; the medicine outlets of the main medicine delivery device and the auxiliary medicine delivery device are communicated with the medicine inlet at the upper end of a liquid storage tank through catheters; the liquid storage tank is matched with a mounting hole in the surface of the shell; a heating plate and a heating lamp are arranged in the mounting hole sequentially; a temperature sensor and a flow sensor are arranged at the medicine outlet of the liquid storage tank; the output ends of the flow sensor and the temperature sensor are electrically connected with the input end of a controller; and the output end of the controller is electrically connected with the input ends of the main medicine delivery device and the auxiliary medicine delivery device respectively. The self-control operating room transfusion heat-insulating nursing control device can accurately control medicine mixing proportion, medicine liquid flow speed and medicine liquid temperature by a fully-automatic control method.
Owner:QINGDAO WOMEN & CHILDREN HOSPITAL
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