81results about How to "Avoid temperature gradients" patented technology

The invention relates to a solid fermentation bioreactor. The reactor comprises a reaction casing , and a porous material layer separator plate (5) is arranged in the reaction casing to divide the reaction casing into an upper fermentation chamber (1) and a lower layer air chamber (3); the reactor also comprises a fermentation control system for controlling a stirring unit, a temperature control unit, a humidity control unit, an air feed control unit and a fermentation tail gas detection and processing unit, so as to realize real time monitoring and control on temperature, humidity, ventilation, stirring and tail gas. The invention realizes totally enclosing on-line fermentation and prevents extraneous pollutants from entering; the tail gas detection system carries out real time on-line monitoring on fermentation gas, and tail gas is treated by tail gas recovery equipment to protect the environment, thereby realizing coupling operation of temperature, humidity, ventilation, stirring and tail gas control system and ensuring necessary essential factors for microbe growth.

Provided is a thickened frame type ballastless track plate. The track plate comprises a base plate, bosses and track bearing tables. The base plate is of a cuboid, the two bosses are symmetrically arranged on one face of the base plate along the axis of the cuboid in the length direction, and the track bearing tables are evenly distributed in the length direction of the upper surfaces of the bosses. A through hole is formed in the base plate and is located between the two bosses symmetrically arranged on the base plate, and a frame structure connected between the two bosses through a transverse reinforcement concrete structure is formed. The thickened frame type ballastless track plate can effectively reduce track plate warping caused by temperature stress, eliminate a pull cracking phenomenon, and enhance running safety and comfort. The thickened frame type ballastless track plate is reasonable in structural stress, light, high in structural strength and capable of effectively improving the stress condition of a sleeper structural system, prolonging the service life of the structure and optimizing rack circuit parameters, improves the circuit transmission characteristic of a resonant track, can be directly and effectively connected with a current high-speed railway CRTS-I ballastless track plate, and is suitable for industrial production.

The invention provides a device and method for preparing an activated carbon material for an electrochemical capacitor, belonging to the technical fields of coal chemical industry and microwave chemistry. The method comprises the following preparation processes of: deashing coal particles serving as raw materials by using hydrochloric acid and hydrofluoric acid, modifying the deashed coal by using nitric acid in an auxiliary way, mixing the modified coal serving as a carbon source with potassium hydroxide and deionized water, stirring to obtain a mixture, stirring and evaporating the mixture to obtain a solid mixture, and then performing microwave-assisted activating, washing, drying and grinding on the solid mixture to obtain the activated carbon. The invention has the advantages that the activation time is only 20-30 minutes, the mass ratio of potassium hydroxide to coal is (0.5-3):1, the preparation process is simple, the microwave-assisted heating is uniform, efficient and energy-saving, the consumption of the potassium hydroxide is reduced, and the activation process has the advantages of uniformity and high efficiency. The prepared activated carbon is used as an electrode material of the electrochemical capacitor and has better stability and excellent comprehensive property.

The invention discloses a novel concrete intelligent temperature control system and method. The system comprises a main server, an intelligent monitoring main control room and branch control stations. The main server of the system is responsible for data storage, management, calculation, analysis, pre-warning, forecasting and instruction transmission of the whole system and can dynamically and visually display all types of temperature control information in form of graphs, lists and lines, and related workers can conveniently conduct supervision and management. The intelligent monitoring main control room directly distributes instruction information of the main server to all the branch control stations and can send temperature control information of all the branch control stations to the main server in a concentrated mode. The branch control stations draw all monitoring devices to the system so that management and information transmission can be conveniently conducted. By means of the modularized, unitized and systemic design, the true temperature and stress, influenced by the true environment where various factors exist at the same time, of concrete are achieved, man-made influence factors are reduced through intelligent water injection, and rapid and high-quality construction of large-size concrete are ensured under the complex environment conditions.

The invention discloses a method for preparing a mesoporous carbon material for an electrochemical capacitor by using rice hulls as raw materials, and belongs to the technical field of carbon materials and microwave chemistry. The method comprises the following steps of: activating the hulls serving as a carbon source by using zinc chloride serving as an activating agent through microwave auxiliary heating to obtain the mesoporous carbon material in one step, wherein the specific surface area of the obtained mesoporous carbon material is between 1,409 and 1,738m<2>/g, the total pore volume is between 0.71 and 2.14cm<3>/g, the average pore size is between 1.99 and 6.08nm, the ratio of the volume of a non-micro pore to the total pore volume is between 66.2 and 99.5 percent, and the mesoporous carbon yield is between 30.4 and 37.0 percent. The method for preparing the mesoporous carbon material is simple, efficient and energy-saving; and the prepared mesoporous carbon material has a higher ratio of the volume of the non-micro pore to the total pore volume, and has extremely high quick charging and discharging performance when used as an electrode material of the electrochemical capacitor.

The invention discloses a focusing strategy optimizing method for mirror fields of a tower type solar thermoelectric power system. The focusing strategy optimizing method comprises the following steps: (1) blocking heliostats fields and determining a plurality of focusing points on a heat absorber; (2) calculating an energy flow density matrix produced by focusing each mirror field block to each focusing point; (3) constructing an optimizing problem by taking the smallest standard deviation of the energy flow density of each grid of the heat absorber as a target and adopting a constraint condition that the power of the heat absorber is not smaller than a preset value; and (4) solving the optimizing problem by adopting a multi-variable-site adaptive genetic algorithm with the elitism strategy to obtain the optimal mirror field focusing strategy. The focusing strategy optimizing method for mirror fields of the tower type solar thermoelectric power system disclosed by the invention can be used for enabling the energy on the heating surface of the heat absorber to be uniformly distributed on the premise of ensuring as much as energy received by the heat absorber as possible, is beneficial to protecting the heat absorber, the improving the heat exchange efficiency and strengthening the system performance, so that reference is provided for the operation of the tower type solar heating and power plant.

The invention provides a three-dimensional integration method for a tile TR component subarray element and aims at providing a three-dimensional integration method for a subarray element which is thinin body and light in weight and is capable of effectively improving the assembly efficiency and quality. The three-dimensional integration method is implemented through the following technical schemeof producing a tool base consistent with a radio-frequency T/R printed board in shape and a tool pressing plate, producing opposite and symmetric electroplated metallization steps on the upper and lower surfaces of the radio-frequency T/R printed board and a radiation surface printed board, making the radio-frequency T/R printed board vertically aligned at the radiation surface printed board andshielding and sealing the peripheries of work cavities of T-type MMIC chips; and burying fuzz buttons into circular holes in the radiation surface printed board and then fastening the radio-frequencyT/R printed board and the radiation surface printed board between the steps of the tool pressing plate and a TR low-frequency and wave-controlled circuit board and vertically interconnecting and fastening the radiation surface printed board and the radio-frequency T/R printed board together to achieve interconnection of radio-frequency inner and outer conductors and inner and outer conductors of an antenna board. Radio-frequency assembly of the subarray element of a chip phased-array antenna is achieved through integral integration.

A method for carrying out an amplification of nucleic acids in pores of a two-dimensionally designed macroporous support material according to one embodiment includes the step of providing a predetermined part of a reaction mixture necessary for the amplification of a nucleic acid in pores of the support material. A device for carrying out the amplification of nucleic acids according to one embodiment includes a two-dimensionally designed macroporous support material having a multiplicity of pores, wherein a predetermined part of a reaction mixture for carrying out an amplification of nucleic acids is provided in the pores.

The invention discloses a temperature measurement structure suitable for growing a SiC crystal system by a PVT (physical vapor transportation) method. The system comprises a crystal growth chamber, a seed crystal support and a thermal insulation layer, wherein the crystal growth chamber is surrounded by a crucible and is used for the crystal growth; the seed crystal support is configured on the top in the growth chamber; the thermal insulation layer is arranged on the outer periphery of the growth chamber; the temperature measurement structure comprises an open hole which is formed in the thermal insulation layer above the seed crystal support on the top in the growth chamber and can be utilized for measuring the temperature in the crystal growth chamber by using a high-temperature infrared temperature measurement meter as well as a temperature measurement pipe which is inserted through the open hole and is formed on the seed crystal support. The temperature measurement structure provided by the invention can measure the temperature of the top of the crucible accurately during the crystal growth process so as to control the temperature accurately, also can prevent the temperature gradient variation caused by the blocking of the temperature measurement hole, and can improve the finished product rate of crystal growth.

The invention discloses a technique process and an operation method for realizing immersive sintering of lithium ion anode and cathode materials with reaction atmosphere or reaction gas. The sintering process is suitable for a synthetic reaction under specific atmosphere, an oxidizing reaction requiring an oxygen atmosphere, a carbon cladding reaction under organic gas, and a quenching reaction requiring fast cooling of cooling gas; the defect that conventional sintering gas floats at the surface of the material is solved by whole course gas immersive sintering manner, thus greatly improving the reaction activity when the gas serves as a reaction raw material and inertia protection when the gas serves as a protection atmosphere, being favorable for meeting the preparing of lithium battery anode and cathode materials requiring the gas to participate the reaction or provide the protection atmosphere, and realizing the immersive sintering process under the gas atmosphere by particle size screening after precursor pelleting, oppositely buckling upper and lower symmetric expanded panels of an immersive sintering furnace and a smart design of the expanded panel and a venting tower.

The invention relates to the technical field of medical equipment, in particular to a heat dissipation structure of a detection assembly, comprising a support body for mounting the detection assembly;A housing arranged on the support body, the housing and the support body forming a closed cavity for accommodating the detection assembly, and the housing is provided with an air flow inlet and an air flow outlet for guiding the air flow to dissipate heat to the detection assembly; And a cooling assembly including a housing, wherein the housing is provided with an air inlet and an air outlet, theair inlet is communicated with an air outlet, the air outlet is communicated with an air inlet, and the cooling assembly is used for cooling the air flow circulating between the housing and the housing. Since the circulation path of the entire airflow is completely closed, the airflow is not exchanged with the outside atmosphere, and the airflow circulating between the housing and the housing iscooled by the cooling assembly, so that the circulating airflow can be at a lower temperature level. Therefore, the heat dissipation structure of the invention can effectively cool the detection component and avoid the temperature gradient problem.

A method for controlling the temperature of a hot isobaric press comprising a pressure vessel (1) having a charging zone (19) located inside and being arranged between the charging zone and the pressure vessel The heat insulator (8) between them, wherein, the heating element (4) and the charging area (19) with the charging device (18) are arranged in the heat insulator (8). Therein, in addition to at least one existing natural or activated convection for heating or cooling or for maintaining the temperature level, at least one swirl (23) is actively or passively formed in the pressure vessel (1). An independent or also suitable hot isobaric press for this method is characterized in that in the pressure vessel (1) there are arranged active or passive means for forming a swirl (23) which occurs essentially at an angle to the convection device.

The invention provides a photothermoelectric conversion module and a manufacturing method thereof. The photothermoelectric conversion module comprises a substrate layer, a photothermal unit, an electrode and a thermoelectric unit, wherein the substrate layer is formed from an insulation material, the thermoelectric unit is arranged between the photothermal unit and the substrate layer and is formed from a thermoelectric material, the electrode is in electrical contact with the thermoelectric unit, and the photothermal unit has conductivity. The method for manufacturing the photothermoelectricconversion unit comprises the step of forming the thermoelectric unit between the photothermal unit having the conductivity and the insulation substrate layer, wherein the thermoelectric unit is formed from the thermoelectric material and is in electrical contact with the electrode.

The invention discloses a feed additive for treating self-biting disease of minks and a preparation method thereof. The feed additive is prepared from the following ingredients: acanthopanax root, mothers of pearl, dens draconis, goat horns, Ludisia discolor, radix paeoniae rubra, cynanchum atratum, spina gleditsiae, eucalyptus leaves, citrus aurantium, red roses, flowers of silktree albizzia, Cortex Sophorae, radix astragali, red halloysite, honey, pine needle meal, shrimp meal, rice bran, silkworm chrysalis, fish scale and olive oil. The feed additive disclosed by the invention can be used for effectively treating canine distemper of the minks and is low in drug residue, good in treatment effect, high in cure rate and low in toxic or side effects, the cure recovery period is shortened, the food intake of the minks is increased, the use is convenient, and the economic benefit of farmers is increased.

The invention discloses a quasi-temperature isostatic pressing forming method and a die. An outer die comprises a female die and male dies arranged at the two ends of the female die, the female die is of a transparent cylinder structure, exhaust holes are evenly and symmetrically formed in the wall face of the female die, and a cavity defined by the female die and the male dies is filled with an inner die; a first cavity used for containing a sample is formed in the inner die, the first cavity is in a cuboid shape, the inner die comprises a plurality of inner die blocks, the inner die blocks comprise contact inner die blocks and supporting inner die blocks, and the orthographic projection range from each face of the first cavity to the inner wall face of the outer die is provided with the contact inner die blocks used for making contact with the surface of the sample; and the sizes of the contact inner die blocks corresponding to the two opposite faces in the first cavity are the same, and the area, outside the contact inner die blocks, of an inner cavity of the outer die is filled with the supporting inner die blocks. According to the quasi-temperature isostatic pressing forming method and the die, through reasonable arrangement of the component structure, uniform and compact forming of a green body is achieved, the quasi-temperature isostatic pressing forming method and the die are suitable for the conditions with and without gas product discharging in the forming process, and the application range is wide.

The invention discloses an additive manufacturing thin-wall rotating member anti-deformation device and an application method thereof. According to the characteristics that the cross-sectional size ofan additive manufacturing thin-wall rotating member changes continuously along with the change of height and the size of the thin-wall rotating member is larger, the size of a support frame further changes continuously, that is, a fixed screw rod is used as a vertical support frame in the vertical direction, and the outer diameters of transverse support rings change continuously along with the change of the size of the rotating member; and the outer diameter of the support ring at the vertical center position is the largest, and the outer diameters of the support rings are gradually reduced upward or downward, and the outer walls of the support rings are always in contact with the inner wall of the rotating member to play a supporting role. According to the additive manufacturing thin-wall rotating member anti-deformation device, the size of the device can be stably controlled within a range of manufacturing blanks, so that the printing yield is improved; and the device is an assemblypart, and can be disassembled integrally or in parts, so that cyclic utilization is convenient.

The invention relates to an insect-preventing antibacterial skirting line and a preparation method thereof. The insect-preventing antibacterial skirting line is prepared from the following components in parts by weight: 10-20 parts of recycling plastic, 30-50 parts of dried enteromorpha powder, 10-20 parts of tea seed meal, 10-20 parts of low-density polyethylene, 1-2 parts of a silane coupling agent, 10-20 parts of wood flour, 5-15 parts of medical stone, 1-3 parts of natamycin, 4-10 parts of beta-cyclodextrin, 4-6 parts of chitosan, 1-3 parts of zinc stearate, 4-10 parts of a traditional Chinese medicinal additive. The insect-preventing antibacterial skirting line is a green and environment-friendly product, good in insect-preventing and antibacterial property, capable of not only preventing germs, insects, mites, ants and the like from being propagated for a long time, but also effectively protecting environments of families, moreover harmless to human beings and free of potential safety hazard of health, and can be widely popularized.

The invention relates to a shaft furnace (10) and a method for heat treating carbonaceous molded parts, particularly anodes (17), having an arrangement of the molded parts in at least one molded part column (11 to 15) disposed between tempering shaft devices (19, 20, 21) comprising a plurality of molded part rows (16) disposed above each other in a conveyor shaft, the rows being moved past temperature fields of the tempering shaft devices (19, 20, 22) and passing through a heating zone (25), a firing zone (27) having a burner device (28), and a cooling zone (26), wherein thermally insulating intermediate layers are disposed both between the temperature fields of the tempering shaft devices (19, 20, 22) and between the molded part rows of the molded part columns.

The invention discloses a waterborne graphene heavy anti-corrosion asphalt paint and a processing process thereof and relates to the technical field of asphalt paints. The waterborne graphene heavy anti-corrosion asphalt paint and the processing process thereof solves the problem that, with extreme changes in external temperature, coatings are pone to cracking due to poor heat transfer effects onthe surface and internally. The waterborne graphene heavy anti-corrosion asphalt paint is composed of, by weight part, 90-110 parts of tar asphalt, 380-450 parts of resin materials, 80-90 parts of triple superphosphate, 35-40 parts of bentonite, 20-30 parts of kaolin, 75-85 parts of graphene, 8-12 parts of emulsifier, 7-15 parts of tex (texnol) film-forming agent, 3-8 parts of butadiene triethoxysilane, 20-40 parts of polyethylene glycol, 60-70 parts of filler, 18-26 parts of fiber materials and 12-18 parts of high-thermal-conductivity filler. After being applied, the waterborne graphene heavyanti-corrosion asphalt paint can form a coating which avoids cracking caused by extreme changes in external temperature, thereby being integrally high in stability during application.

The invention relates to the field of refrigeration equipment and discloses an air-cooled heat dissipation flow type semiconductor refrigeration system and refrigeration equipment. The refrigeration system involves a storage container, a semiconductor refrigeration chip and an air-cooled hot end radiator in contact with the hot end of the semiconductor refrigeration chip, wherein a cold guide piece with an inner surface exposed to an inner cavity of the storage container is provided or integrally formed on one side of the storage container, the cold guide piece is in contact with the cold endof the semiconductor refrigeration chip, a liquid driving device is arranged on the storage container, the liquid driving device forms a liquid flow path with the storage container so that heat convection movement of drinking liquid can be guided in a working process through the liquid driving device, and a local turbulence forming structure for forming local turbulence of the liquid is arranged on the liquid flow path. According to the system and the equipment, the drinking liquid in different areas in the storage container is promoted to keep the temperature uniform through the liquid flow path, so that the refrigeration efficiency is effectively improved, and the refrigeration effect is enhanced.