37results about How to "Improve heat transfer ability" patented technology

A liquid-cooling heat radiating device comprises a heat absorbing body, a heat radiating body and a driver, wherein the heat absorbing body, the heat radiating body and the driver are connected through a pipeline to form a loop; the loop is filled with cooling fluid; the driver drives the cooling fluid to flow circularly in the loop; the heat absorbing body comprises a heat absorbing plate, a radiator and a heat pipe; the interior of the heat absorbing body forms a cavity; the radiator and the heat pipe are accommodated in the cavity; and the heat absorbing plate is connected with the radiator through the heat pipe and used for being contacted with a heat source.

The invention provides a sophisticated and constant temperature control experiment box and belongs to the technological field of electronic equipment. The invention consists of an incubator (10) and a constant temperature controller. The incubator (10) comprises an insulation component and a thermal transfer component; the constant temperature controller consists of a temperature setting circuit (1), a temperature measurement circuit (2), a subtraction circuit (3), a PI control circuit (4), a limiting protection circuit (5), a TEC drives circuit (VCCS) (6) and a display circuit (7). The invention has the stable performance and the reliable work; the temperature control accuracy is 0.1 DEG C; the short-term stability is plus or minus 2.6*10<-3> DEG C; the long-term stability is plus or minus 0.024 DEG C; the temperature range at the normal temperature is 10 DEG C to 40 DEG C. The invention can not only be used for providing a constant-temperature environment for active lock-mold fiber laser experiment, but also can be used for measurement and testing on small occasions and for detection of gradually changed weak signals.

The invention discloses a solar greenhouse micro-heat pipe array heat storage wall and a preparation method thereof and belongs to the technical field of agricultural facilities. The heat storage wall is sequentially composed of a heat insulation layer, a bearing building block layer, a micro-heat pipe module layer and a cement mortar layer from exterior to interior. The micro-heat pipe module layer is formed by building micro-heat pipe building blocks and building block bricks. Each micro-heat pipe building block is formed in the mode that condensation segments of a plurality of Z-shaped micro-heat pipes are arranged in parallel and inserted into a die and concrete is added for pouring and maintaining. Each micro-heat pipe is formed in the mode that an aluminum plate is stamped, a plurality of parallel micro-groove channels are formed in the aluminum plate and then filled with a proper amount of working medium and then sealing is carried out. By combining the requirements for uniformity of heat storing and releasing of the greenhouse wall, the micro-heat pipe building blocks are distributed in an arrayed mode, and the micro-heat pipe array heat storage wall is formed. By means of the micro-heat array technology, the diurnal solar energy is quickly transferred into the greenhouse wall, the heat storage capacity of the interior of the wall is improved, the stored heat energy is released in time at night according to needs of the heat environment in the greenhouse, and therefore the regulating capacity of the solar greenhouse wall for the heat environment in the greenhouse is improved, and the utilization rate of the solar energy by the greenhouse is increased.

The invention discloses a device and a method for complete methanation of synthesis gas, belonging to the technical field of coal chemical industry. The device consists of a mixer, a gas-solid-solid reactor, a cyclone separator, a heat recovery container, a first material seal and a second material seal. The method includes three main steps: complete methanation of synthesis gas consisting of feed gas carrying inert heat carrier particles, separation of product from the inert heat carrier particles, and recovering and recycling of the inert heat carrier particles, wherein the complete methanation of the synthesis gas consisting of the feed gas carrying the inert heat carrier particles can greatly reduce the reaction temperature, slow down the catalyst carbon deposit rate, and reduce the heat load of a material of a reactor, and the inert heat carrier particles are carried by reactant gas to pass through the reactor which can be continuously operated.

The invention discloses a method for producing hydrocarbon with synthetic gas, which comprises essentially the steps as follows: methanol synthetic reaction of the pressurized synthetic gas is implemented in a methanol synthetic reactor, reaction gas is not separated after being output from a reaction tower and enters a methanol dehydrating reactor under the same pressure level so as to implement the methanol dehydrating reaction and generate the hydrocarbon product, the final reaction gas is cooled and separated so as to generate the hydrocarbon product, water and unreacted synthetic gas, and the separated synthetic gas is either discharged for gas-steam integrated gasification combined cycle (IGCC) or taken as recycled synthetic gas and mixed with the raw material synthetic gas in further methanol synthesis, methanol dehydration and product separation besides little discharge.

The invention relates to a finger-type heat exchanger with a triple-sleeve structure used in a fluidized bed reactor for synthesizing trichlorosilane, which comprises a heat conduction oil inlet, an upper heat exchange tube seal head, a heat exchange tube connection flange, a plurality of finger-type triple-sleeve heat exchange tubes, and a heat conduction oil outlet, wherein each finger-type triple-sleeve heat exchange tube consists of an inner tube, a liner tube and an outer tube that are sequentially arranged from inside to outside, the upper end and the lower end of an annular interstice space between each inner tube and each liner tube are closed, and each annular interstice space is vacuumed to form a vacuum isolated layer. The heat exchanger solves the problem that oil temperature rises greatly as heat conduction oil enters the annular interstice spaces between the inner tubes and the outer tubes from the inner tubes, the temperature of a fluidized bed can be distributed uniformly, the reaction is stable, and the utilization ratio and the product purity of silicon powder are higher.

The invention discloses a fluidized bed and fixed bed combined methanation method. The method comprises the steps that (1) a methanation feed gas is divided into two feed gases; one feed gas, water vapor and a recycle process gas from a fluidized bed methanation system enter the fluidized bed methanation system after being mixed to undergo methanation reaction under the action of a fluidized bed methanation catalyst; (2) a part of the outlet gas of the fluidized bed methanation system undergoes heat exchange, then is treated by a gas-liquid separator to separate condensed water and is mixed with the other feed gas; the gases enter a fixed bed methanation reaction system to undergo methanation reaction under the action of a fixed bed methanation catalyst; the other part of the outlet gas from the fluidized bed methanation system serves as the recycle process gas. Control of the temperature of the whole system is achieved by adding two system temperature control means, namely regulating the split ratio of the feed gases entering the two reactor systems and injecting the gas mixture of water vapor and the recycle process gas into the fluidized bed reaction system by an ejector.