109results about How to "Eliminate "hot spots"" patented technology

The invention relates to a noninvasive radiotherapy system for a robot, and belongs to the medical equipment field. The noninvasive radiotherapy system for the robot consists of seven modules, i.e. a radiotherapy planning system, a three-dimensional numerical-control therapy bed, an automatic tracking system for a four-dimensional real-time image, a robot system, a radioactive source, an adjuvant therapy system and an integrated control system, wherein the automatic tracking system for the four-dimensional real-time image consists of a six-freedom-of-degree G-shaped arm real-time image system and an intelligent tracking system; the six-freedom-of-degree G-shaped arm real-time image system is formed by successively connecting a G-shaped arm, a G-shaped arm sliding rail, a G-shaped arm spindle, a G-shaped arm pitch shaft and a G-shaped arm sliding seat; an X ray source and an X ray dynamic flat panel detector are formed into one group, and two groups are correspondingly installed on the G-shaped arm; and the G-shaped arm sliding seat is installed in a rail (9). According to the noninvasive radiotherapy system for the robot, which is disclosed by the invention, the defects of unmatched projection time, time waste and low therapy precision in the prior art are overcome, the precise therapy of the whole body tumor can be carried out, and the cardiovascular disease therapy and the noninvasive regulation of the renal nerve disease can be carried out.

The invention discloses a combined graphite heat conducting radiating fin which comprises an intermediate layer formed by a pure-graphite heat conducting radiating fin. One surface of the intermediate layer is provided with a gum layer which increases the strength of a soft graphite sheet and prevents the graphite sheet from generating bug dust and influencing the appearance and the use, and the gum layer also betters bending capability; and a three-dimensional assembly can be processed, thereby further facilitating the processing of a graphite heat conducting radiating material with any size, any shape and any structure and enlarging use range of the graphite sheet. By adopting the anisotropic graphite heat conducting radiating fin, the efficiency in heat conduction and radiation is high, small area is occupied, the weight is light, the heat is uniformly conducted and radiated, heat point areas are eliminated, and the performance of an electronic product is improved when a heat source is isolated from components.

The invention discloses a wireless charging device, which comprises a shell, a battery arranged in the shell and a primary coil arranged in the shell, wherein a cooling layer is also arranged in the shell and is arranged between the primary coil and the shell. By the wireless charging device, the heat generated by the primary coil can be quickly diffused, so that the comfort degree during charging for a user is enhanced.

The invention discloses a hydrocarbon continuous liquid phase hydrogenation process method which includes a gas-liquid mixing step, to be more specific, a liquid phase material flow is fully mixed with hydrogen to obtain a dissolved-hydrogen-saturated liquid phase material flow by use of a gas-liquid mixer; and a hydrogenation reaction step, to be more specific, the dissolved-hydrogen-saturated liquid phase material flow flowing into a reactor flows in the direction of from the top of the reactor to the bottom of the reactor for liquid phase contact reaction with every stages of catalyst bed layers, and at the same time, new hydrogen is injected into the liquid phase material flow by a hydrogen distributor so as to realize the efficient hydrocarbon reaction of the liquid phase material flow. The present invention also discloses a hydrocarbon continuous liquid phase hydrogenation device which includes one gas-liquid mixer and one multiplestage reactor, the multiplestage reactor is connected with the gas-liquid mixer, each stage of the reactor comprises at least two stages of catalyst bed layers, and one hydrogen gas distributor is arranged between adjacent catalyst bed layers,.

The invention relates to a micro silicon-based capillary pump loop cooler. The micro silicon-based capillary pump loop cooler is characterized by comprising a pair of semiconductor silicon chips and heatproof boron silicate glass which are bonded, wherein a surface of the silicon chip (1) contacting with the boron silicate glass is etched with an evaporator (2), a condenser (3), a vapor phase channel (4), a liquid phase channel (5), a liquid storage chamber (6) and a silicon chip vacuum-pumping/liquid injection channel (9), a vacuum-pumping/liquid injection hole (12) is processed on the boron silicate glass (11), the evaporator (2) and the condenser (3) are respectively arranged at two ends of the silicon chip (1) and are mutually communicated through the vapor phase channel (4) and the liquid phase channel (5) to realize heat exchange, the liquid storage chamber (6) is communicated with a liquid inlet of the evaporator (2), and the silicon chip vacuum-pumping/liquid injection channel (9) is communicated with vacuum-pumping/liquid injection hole (12) processed on the boron silicate glass (11). The micro silicon-based capillary pump loop cooler has advantages of simple structure, convenient manufacturing and good heat radiation effect.

The present invention provides a ft synthesis reaction process based on the fixed bed reactor is that the cycling medium enters from the top of the fixed bed reactor after preheated, the feed gas formed by mixing the syngas with the tail gas enters from the lower of the fixed bed reactor to contact with the catalyst to process ft synthesis , the product is fully collected to process the separation of water, a long chain hydrocarbon and a gas phase component; the long chain hydrocarbon processes C5-C18 middle distillate, the separation of C18+hydrocarbon and gaseous low carbon hydrocarbon, one part C5-C18 middle distillate is mixed with the cycling liquid medium, the other part is processed oil product process, C18+hydrocarbon fully enters in the oil product process, the gaseous low carbon hydrocarbon mixing with the gas phase component forms the tail gas, the water component is used as a gas agent to return in the gasification system. The invention has high heat exchange efficiency, high syngas throughput, lower cycling gas quantity, lower energy consumption, stable operation.

The invention provides a multitubular fixed bed reactor which is characterized in that the reactor comprises a first sealing head, a second sealing head, and a housing, wherein at least one partition plate is disposed in the housing to partition the reactor into at least two sections along an axial direction of the housing; a cooling medium inlet and a cooling medium outlet are disposed on the housing outside each section of the reactor; the tube number of each section of the reactor decreases orderly away from the second sealing head along the axial direction of the housing, and the tube diameters of the tubes increase orderly. The invention also provides a coal bed methane deoxidation method performed in the multitubular fixed bed reactor. Compared with various equipment improvement in the prior art, the multitubular fixed bed reactor of the invention is simple in structure, and low in preparation difficulty. In addition, the method of the invention not only ensures the coal bed methane deoxidation effect, eliminates hot spots in the reactor, but also ensures the processing capacity of the process.

The invention discloses a slab crystallizer taper design method, and belongs to the field of steelmaking-continuous casting. The slab crystallizer taper designed by the invention is capable of sufficiently compensating the contraction of a slab shell in the crystallizer, effectively inhibiting the deformation of the slab shell in the crystallizer and preventing the continuous casting slab surface and subsurface crack from frequently occurring since the initially set slab shell is great in deformation at the upper part of the crystallizer; the slab crystallizer taper designed by the invention can be used for effectively eliminating the hot points at corner adjacent region of the wide surface and narrow surface of the slab shell so as to realize the uniform growth of the slab shell in the crystallizer; the slab crystallizer taper designed by the invention can be used for maximally lightening the abrasion of the copper plate of the crystallizer and prolonging the service life of the crystallizer; and the slab crystallizer taper designed by the invention can be used for accelerating the heat transfer of the corner part and the narrow surface of the slab shell, increasing the strength of the slab shell out of the crystallizer and lightening the narrow surface bulging of the slab shell.

The invention discloses a flame holder and a ground gas turbine combustion chamber with the same. The flame holder comprises a central ring and a plurality of radial struts fixed on the outer circular face of the central ring along the radial direction uniformly. A ring body of the central ring and the radial struts are formed by members in groove structures, and groove opening directions of the central ring and the radial struts are identical. Gas flow channels are formed in the members in groove structures and are communicated with the outside through a plurality of gas spray holes in the bottoms of the grooves. The gas flow channel in the central ring and the gas flow channels in the radial struts are communicated to form a gas flow cavity with the shape corresponding to the shape of the flame holder. By means of the flame holder, fuel gas can be burnt stably on the flame holder even under the impact of high-speed gas flows.

The invention provides a valveless piezoelectric pump of an asymmetrical tree-shaped fractal flow pipe. The valveless piezoelectric pump comprises a pump body consisting of a pump cover and a pump base, a piezoelectric vibrator, a water inlet pipe and a water outlet pipe; a water inlet, a water outlet and a sink hole are arranged on the pump cover, the water inlet pipe is connected with the water inlet, and the water outlet pipe is connected with the water outlet; the piezoelectric vibrator is fixed in the sink hole; a pump cavity, a taper flow pipe, a connecting pipe and a tree-shaped fractal flow pipe are arranged on the pump base, and the pump cavity is corresponding to the sink hole; one end of the taper flow pipe is connected with the pump cavity, and the other end is connected with the water inlet; one end of the connecting pipe is connected with the pump cavity, and the other end is connected with a main flow pipe of the tree-shaped fractal flow pipe; the tail end of a branch pipe of the tree-shaped fractal flow pipe is connected with an equal section circular flow pipe connected with the water outlet. Through the tree-shaped fractal flow pipe consisting of a quasi-fractal U-shaped fork flow pipe, the valveless piezoelectric pump eliminates the hot point of an electronic appliance well; through the asymmetrical layout of the tree-shaped fractal flow pipe and the taper flow pipe, the valveless piezoelectric pump is good for increasing the resistance difference of positive and reverse flows, and thereby the flow rate of the pump is increased.

The invention discloses a cabinet intelligent airflow optimization system and a data center based on the system, and relates to the field of computers. The system comprises a pressure sensor, a temperature sensor, a ventilation device and a controller. The pressure sensor is used for detecting pressure in a server cabinet. The temperature sensor is used for detecting outflow air temperature of the server cabinet. The controller is electrically connected with the pressure sensor and the temperature sensor and used for acquiring, transmitting and calculating pressure, detected by the pressure sensor, in the server cabinet and outflow air temperature detected by the temperature sensor. The ventilation amount is adjusted according to a set work mode. The ventilation device is electrically connected with the controller and used for operating under the control of the controller so that heat in the server cabinet can be output to a hot air channel. The system meets the cooling requirement of different heat productivity at the load peak or load valley, eliminates hot spots, and achieves the effects of reducing energy consumption and improving power density of the server cabinet.

The invention provides a light guide plate capable of eliminating hot spots and its backlight module. The light guide plate has a light incident surface and a number of spreading teeth. The light incident surface is used to receive light from at least one light source. The light incident surface, and the point light source corresponds to at least any three adjacent spreader teeth, so that the projected area of ​​the point light source on the light incident surface covers the aforementioned at least three adjacent spreader teeth. The surface roughness of each spreader tooth is greater than 0.9 μm, and the light from the point light source is first projected onto at least three adjacent spreader teeth, scattered through the spreader tooth structure, and at the same time passed through its surface roughness greater than 0.9 μm Diffuse due to the structure, thereby increasing the luminous angle of the light entering the light incident surface, thereby eliminating the hot spot phenomenon and improving the optical characteristics.

The invention discloses a method for improving a uniform heat dispersion performance of a lithium ion battery electrode piece, relates to methods for uniform heat dispersion performances of battery electrode pieces and solves the problem that a heat-conducting performance of the plane of a conventional metal current collector adopted in a lithium ion battery is poor, so that the local overheating of an electrode in the charging and discharging processes occurs, and further battery bloating is caused and the service life of the battery is shortened in the prior art. The method has the characteristics that flexible graphite paper is used for replacing an aluminum foil and a copper foil in the lithium ion battery to be used as an electrode material active substance-loaded current collector; and heat at heat points of the electrode piece can be fast and uniformly dispersed by using the high heat-conducting performance of the flexible graphite paper, so that the heat points can be removed, the temperature of a battery cell is uniformly distributed, and further electrolyte decomposing, battery service life shortening and battery damage caused by the local overheating of the battery core can be avoided. The electrochemistry unreactiveness of the flexible graphite paper and the condition that the flexible graphite paper can not react with lithium ions and the electrolyte during over-charging and over-discharging are used, so that the service life of the battery is prolonged, and the safety of the battery is improved; and the method is used in the field of the batteries.

The invention discloses a light guide plate and a backlight module. The light guide plate is provided with a first area and a second area and comprises a plate body, a plurality of first strip-shapedmicrostructures, a plurality of prism-shaped microstructures and a plurality of light scattering microstructures. The plate body is provided with a first surface, a second surface and a first side surface which are opposite to each other, and the first area is closer to the first side surface than the second area. The first strip-shaped microstructures are formed on the first surface and located in the first area. The first strip-shaped microstructure extends along a first direction parallel to the first side surface. The prism-shaped microstructure is recessed into the second surface and is located in the second region. Each prism-shaped microstructure is provided with a first inclined surface facing the first side surface. The light scattering microstructure is recessed into the second surface and is located in the first region. The backlight module comprises the light guide plate. The light guide plate and the backlight module have good optical performance.

The invention belongs to the technical field of equipment cabinets and discloses an equipment cabinet and communication equipment. The equipment cabinet comprises a cabinet body and an air conditioner which is arranged at the upper end or the lower end of the cabinet body. An air conditioner heat exchanging cavity is arranged at one end, close to the air conditioner, of the equipment cabinet. An inner circulation air outlet and an inner circulation air returning opening which are communicated with the air conditioner heat exchanging cavity are formed in the cavity body. The cavity body is further provided with an inner circular middle air opening. An air channel part which is used for guiding air flow at the inner circulation middle air opening to the inner circulation air returning opening or for guiding cooling air flow to the inner circulation middle air opening is arranged on the side face of the cabinet body. The communication equipment comprises the equipment cabinet. According to the equipment cabinet and the communication equipment, even temperature in the equipment cabinet can be guaranteed, and safety and reliability are high.

The invention discloses an inferior diesel pour-point depressing modification method, which comprises the following contents: (1) an inferior diesel material and a powdery hydrofining catalyst are fully mixed in a mixer to obtain a mixed feed of the catalyst and the raw oil; (2) the mixed feed and hydrogen enter a boiling-bed reactor from the bottom of a reactor filled with a mixture of a hydrodewaxing catalyst and a hydro-upgrading catalyst to undergo a hydrogenation reaction; (3) the reaction product is charged out of the top of the boiling-bed reactor and then enters a stable reactor to supplement hydrofining; and (4) the material undergoes solid-liquid separation, and a liquid phase enters a fractionating system so as to obtain a diesel product with high quality, low pour point, low sulfur content and high cetane number. According to the method, the backmixing characteristic of the boiling-bed reactor is fully utilized, and cooling and hydrofining of the hydrodewaxing process and temperature rising of the hydro-upgrading process are reasonably utilized. Therefore, the diesel with low pour point and ultra-low sulfur content is produced, cetane number is raised, hot-spot temperature of the device is reduced, running period is prolonged, and operation expenses are saved.

The invention discloses a hierarchical heat driving floor planning and layout method which comprises the following steps of: firstly, arranging a plurality of modules according to a power sequence, and forming a module sequence; secondly, grouping the module sequence from front to back according to an area sum, dividing into a plurality of module layer groups with approximately equal area sum; thirdly, establishing an analysis heat mold for calculating the average temperature of the module groups; fourthly, acquiring a power distribution constraint graph of each module group; and fifthly, sequentially arranging the module groups above a heat dissipating device at the bottom layer according to the power density, the sequence from big to small and the respective power distribution constraint graph. In the method, a three-dimensional layout problem is converted to a two-dimensional layout problem, thereby avoiding putting a high-power density device in a pile of vertical regions, realizing power density balanced distribution in vertical and horizontal directions, efficiently reducing the hot spot amount and optimizing the chip area and the interconnecting wire length.

The invention relates to an integrated packaging structure of an IGBT chip and a phase-transformation soaking plate. The integrated packaging structure is composed of an end cover, an upper shell plate, a bottom plate and an IGBT chip that are connected fixedly and successively. The IGBT chip is welded to the bottom of the bottom plate. A plurality of columnar fins are arranged at one side, approaching the end cover, of the upper shell plate; heat-exhange space for heat exchanging is encircled by the end cover and the upper shell plate; and the plurality of columnar fins are arranged in the heat-exhange space with at least one cooling liquid inlet and outlet. A plurality of support posts are arranged at one side, approaching the bottom plate, of the upper shell plate; an enclosed soaking plate cavity is encircled by the upper shell plate and the bottom plate; the plurality of support posts are arranged in the enclosed soaking plate cavity; and the enclosed soaking plate cavity filled with a working medium is in a vacuum state. Compared with the prior art of setting a heat-conducting film or coating a thermal conductive paste between the IGBT chip and the bottom plate, the integrated packaging structure has the following beneficial effects: the IGBT chip is welded to the bottom plate of the soaking plate, so that the contact thermal resistance is reduced effectively; and a high-temperature process is carried out before a process of liquid injection, vacuumization, and sealing of the soaking plate, so that the soaking plate is protected from being damaged by thermal expansion.

The invention discloses a novel rapid cooling hydrogen tank. The novel rapid cooling hydrogen tank comprises, from the upper part to the lower part, a liquid collecting plate, a liquid dropping plate, a separating plate, and a redistributing sieve plate; a center opening of the liquid collecting plate is provided with a traverse baffle; a center opening of the liquid dropping plate is provided with a liquid collecting groove; a cold hydrogen pipe coiled pipe is arranged in the liquid collecting groove; a center opening of the separating plate is provided with a mixing pipe; the center of the redistributing sieve plate is provided with a diversion cone; and the periphery of the diversion cone is provided with small holes. The novel rapid cooling hydrogen tank is provided with the liquid collecting groove, and the liquid collecting groove is used for collecting liquid phase materials of an upper bed layer; the cold hydrogen pipe is arranged in the liquid phase materials in the liquid collecting groove in a coiled manner, cold hydrogen is sprayed out from the cold hydrogen pipe so as to stir and bubble the liquid phase materials, the relatively high temperature difference of the cold hydrogen and the liquid phase materials is used for enhancing gas-liquid heat transferring, heat is transferred from the liquid phase materials to the cold hydrogen, and then the cold hydrogen is mixed with oil gas for heat transferring, so that heat exchange efficiency of the novel rapid cooling hydrogen tank is increased greatly.

The invention discloses a toothed weir type impact reducing and uniform fluid distributing plate and belongs to the field of chemical equipment. The toothed weir type impact reducing and uniform fluiddistributing plate comprises a tray and distributors arranged on the tray, wherein each distributor comprises a uniform fluid distributing plate, a material lowering pipe and connecting rods, and theuniform fluid distributing plate is arranged above the material lowering pipe and connected with the material lowering pipe through the connecting rods. The toothed weir type impact reducing and uniform fluid distributing plate has the characteristics of impact reducing and uniform fluid distributing functions, good distribution effect, small size, low mounting precision requirement and the like.

The invention provides a combined synthetic method for liquid hydrocarbon. According to the method, a purified raw material--synthetic gas enters a first-stage Fischer-Tropsch synthesis reactor for a reaction, the first-stage reactor employs a slurry bed reactor and an iron-based catalyst to separate a product of the first-stage Fischer-Tropsch synthesis reaction, and tail gas enters a CO2 removing unit; and a material flow without CO2 is introduced into a second-stage reactor, the second-stage reactor employs a tubular fixed bed reactor and a cobalt-based catalyst to separate a product of a second-stage Fischer-Tropsch synthesis reaction, a part of tail gas returns to the second-stage reactor for cyclic reaction, the inner surface of a reaction tube of the tubular fixed bed reactor is smooth, and the external surface of the reaction tube has a groove. The method overcomes the disadvantages of a low CO utilization rate, hardly controllable reaction heat release, a high catalyst deactivation rate, etc. of conventional process and improves reaction selectivity and liquid hydrocarbon yield.

Described is an adaptive automatic computer room air conditioner (CRAC) or computer room air handler (CRAH, CRAC and CRAH is referred interchangeably in this article) group control method. This method automatically controls each HVAC unit's on/off status, return temperature set point, fan speed or cooling valve position to secure the data center thermal environment for server's secure running and minimize the cooling energy use. The method creates a comprehensive feedback control loop between temperature sensor network, data center environment and CRACs.