36results about How to "Good heat transfer" patented technology

The invention relates to the manufacture technical field of polysilicon ingot furnaces, and aims to provide a closed cooling system of a gas cooled polysilicon ingot furnace. The system comprises a heat exchange platform positioned on a supporting column and used for placing a crucible, wherein a cooling gas channel is arranged in the heat exchange platform; a gas inlet and a gas outlet at two ends of the cooling gas channel are respectively connected with a cooling gas inlet pipeline and a cooling gas outlet pipeline; and the heat exchange platform, the cooling gas inlet pipeline, the cooling gas outlet pipeline, a cooling gas power pump group and a cooler form a closed circulation loop of the cooling gas. Compared with the cooling method of radiation cooling and water cooling, the system related by the invention has strong gas cooling control capacity and high industrial controllability; the gas is fed into the heat exchange platform evenly, so that the whole temperature of the heatexchange platform is even, which is in favor of even nucleation of a silicon melt at the bottom of the crucible; and the reducing speed of the temperature at the bottom of the crucible can be precisely controlled during the crystal growth.

A brushless hybrid electrical machine for converting between electrical and mechanical energy has a rotor supported for rotation about an axis of rotation relative to a juxtaposed stator that is stationary and magnetically interacts with the rotor. The rotor includes a ferromagnetic rotor structure having two portions spaced apart, but rotating together, and defining therebetween an armature air gap. Magnetic poles are arranged in a circumferentially alternating array of ferromagnetic and permanent magnet poles, bordering the air gap. A stationary air core armature having multiple phase windings is located in the armature air gap, and a field coil is also positioned between the two portions of the rotor for generating field coil flux that flows in a flux path through the ferromagnetic poles, the armature air gap and through the ferromagnetic rotor structure. The permanent magnet poles generate permanent magnet flux that also flows in a flux path through the armature air gap and through the ferromagnetic rotor structure. The field coil flux and the permanent magnet flux induces an AC voltage in the multiple phase windings of the air core armature as said rotor rotates.

The present invention discloses a scintillation detector 10 comprising a scintillation crystal 12 covered by an inner coating layer 14, said inner coating layer 14 being reflective to light spectrum, and said inner coating layer 14 being stuck directly to said crystal by a chemical and/or a physical binding. According to further aspect of the invention, a method is disclosed to measure radiation from an wellbore environment with the aforementioned scintillation detector 10. According to a still further aspect of the invention, a method is disclosed to manufacture a scintillation detector 10, comprising the steps of: defining two surface parts in a scintillation crystal 12: first and second part, covering said first part of said scintillation crystal 12 with an inner coating layer 14, said inner coating layer 14 being reflective to light spectrum and said inner coating layer 14 being stuck directly to said crystal 12 by a chemical and/or a physical binding, leaving said second part without coating, positioning said scintillation crystal 12 and said inner coating layer 14 in a shock absorbing member 18, positioning said second part in front of an optical window 24 transmissive to scintillation light given by said scintillation crystal 12, positioning said shock absorbing member 18 and said optical window 24 in a protective housing 20.

The present invention is a plate heat exchanger that allows refrigerant to enter the heat exchanger simultaneously from two sides. Allowing the refrigerant or other fluid to enter from two sides splits the flow and improves fluid velocities by presenting an optimized area to the fluid flow. This effect may be realized for both gases and liquids, and for example with respect to a liquid refrigerant, where it enters the heat exchanger simultaneously by splitting. According to the present invention the split liquid flow from the condenser feeds dual electronically controlled expansion valves before entering the heat exchanger. Fully evaporated gas leaves the heat exchanger through a single outlet, or through a dual outlet.

The invention relates to a gas distributing device for a fluidized bed, which is arranged in a gas gathering chamber 4. The gas distributing device comprises an upper cone, a lower cone and a bracket, wherein the bracket is inversely provided with the lower cone; the lower cone is provided with the upper cone; the bottom surface of the upper cone is opposite to that of the lower cone; and the upper cone and the lower cone have the same bottom diameter, and the bottom diameter is less than the inner diameter of the gas gathering chamber. The bottom angle a of the upper cone is between 30 and 55 DEG; the bottom angle of the lower cone is between 28 and 48 DEG; and the bottom radius of the upper cone and the lower cone is 2 to 20 mm less than the inner diameter of the gas gathering chamber. The cone gas distributing device has good gas distributing effect and effectively improves the gas distributing evenness; the cone surface has the advantages of smoothness, no gas channel, small pressure drop, abrasion resistance and difficult deformation at a high temperature; an annular gap can effectively prevent impurities carried by a raw material from blocking the gas distributing device so as to conveniently carry out replacement or maintenance.

The invention discloses a flexible cable with a heat dissipation effect, belongs to a multifunctional cable in the technical field of cables and aims at providing the flexible cable with the heat dissipation effect. According to the technical scheme, the flexible cable comprises a flexible cable core group arranged in the middle, wherein a first heat dissipation grid tube group is arranged outsidethe flexible cable core group; the length directions of grid tubes in the heat dissipation grid tube group are set along the radial direction of the flexible cable core group; a plurality of elasticcables are arranged outside the first heat dissipation grid tube group and are uniformly distributed along the external circumferential direction of the first heat dissipation grid tube group; a spring coil is arranged outside the elastic cables; a second heat dissipation grid tube group is arranged outside the spring coil; and a heat absorption layer is arranged outside the second heat dissipation grid tube group. The flexible cable with the heat dissipation effect has a good heat dissipation function while the flexibility of the cable is strengthened, and can be widely applied to a relatively harsh environment.

The invention particularly discloses an electromagnetic liquid heater. The electromagnetic liquid heater comprises a non-magnetism receptor, a magnetism receptor, a magnetic coil, a heat conducting metal part and a control circuit. The non-magnetism receptor is used for accommodating to-be-heated liquid; the magnetism receptor capable of generating eddy currents with the magnetic coil is arranged in a cavity of the non-magnetism receptor; the magnetic coil acts on the magnetism receptor to enable the magnetism receptor to generate heat; the heat conducting metal part contacts with the magnetism receptor and is provided with a temperature probe used for temperature detection; the control circuit is used for controlling operation states of the magnetic coil and connected with the temperature probe. The electromagnetic liquid heater has the advantages that firstly, utilization rate of energy resources can be greatly improved, simple product structure is achieved, and market promotion is facilitated; secondly, due to the fact that the temperature probe and the heat conducting metal part are arranged on the magnetism receptor, the temperature can be further detected beneficially to prevent burning of the magnetism receptor.

The invention provides a nano-fluid, a preparation method thereof and a heat exchange device. The preparation method of the nano-fluid comprises the following steps: mixing expanded graphite with a stripping agent in a first base fluid to obtain a first mixture, and performing in-situ liquid phase stripping treatment on the first mixture to obtain a raw graphene stock containing graphene nano-sheets; and uniformly dispersing the raw graphene stock into a second base fluid to obtain the nano-fluid. The inventors have found that the method is simple and convenient to operate, facilitates large-scale production, is safe and environment-friendly, and can obtain the nano-fluid with high heat transfer coefficient, high thermal conductivity, low flow resistance and long-term stable dispersion.

The invention relates to a microwave radiator for microwave physical therapy of human tissues, in particular to a large-caliber series self-converging tissue lens focusing radiator and belongs to the technical field of microwave physical therapy. According to the series radiator, a pyramidal horn antenna with operating frequency of 2,450 MHz is used, and different large-caliber sizes are selected according to different application parts. The opening surface of the radiator is designed according to a lens antenna, microwaves can be converged at deep tissues by utilizing a human tissue lens which is naturally formed a high relative dielectric constant of the human tissues during clinical application, and the radiator has a certain capacity of heating the deep tissues through good heat transport and heat conduction functions of the tissues; and therefore, a clinical application range of 2,450 MHz microwave is greatly widened.

A method for manufacturing segmented blow molds for plastic containers, where blow mold preforms are manufactured by flame-spraying at least one metal-containing and/or ceramic-containing layer on a negative model of at least one segment of the blow mold to be manufactured, and the at least one layer is then detached from the negative model, thereby providing a particularly simple and repeatable manufacturing of blow molds.

The invention discloses a rubber sheath material used by a self-regulating electric tracing band. The rubber sheath material comprises the following raw materials in parts by weight: 70-100 parts of ethylene propylene diene monomer, 20-50 parts of carboxylated nitrile rubber, 25-30 parts of chloroprene rubber, 1-3 parts of dicumyl peroxide, 2-6 parts of 2,5-dimethyl-2,5-di(t-butylperoxy)-3-hexyne, 1-2 parts of triallyl isocyanurate, 0.5-2 parts of sodium dichromate, 50-70 parts of modified glass fibers, 20-40 parts of graphite powder, 5-15 parts of high abrasion furnace black, 10-20 parts of silicon carbide, 8-16 parts of kaolin, 20-35 parts of copper powder, 1-2 parts of antioxidant AT-215, 2-6 parts of sodium lignosulphonate, 1-2 parts of diisodecyl phthalate, 1-2 parts of polyvinyl butyral, 1-2 parts of liquid coumarone resin and 0.8-1.5 parts of tributyl citrate. The rubber sheath material has good heat transfer performance, high hardness and excellent abrasion resistance.

The invention discloses an olefines unsaturated bond-containing polymer hydrogenation reaction method. The method comprises the following steps: under a hydrogenation reaction condition and existence of a hydrogenation catalyst, an olefines unsaturated bond-containing polymer solution and hydrogen are contacted in a reactor, wherein the reactors are two or more loop reactors connected in series, the cycle ratio of the loop reactors can be controlled so that the material in the reactor is close to a complete mixing flow state, wherein the cycle ratio of a first reactor is 10-200, and the cycle ratio of a second reactor and other reactor is 10-100. The method can better control the reaction temperature, the catalyst activity can be kept in a long operation period, hydrogenation efficiency is increased, and ideal hydrogenation degree can reached.

The invention discloses an electromagnetic superconducting drying oven, and relates to the technical field of drying ovens. The electromagnetic superconducting drying oven comprises an installation plate, a drying oven body is welded to the outer surface of the top of the installation plate, a partition plate is welded to the interior of the drying oven body and divides the drying oven body into an upper cavity and a lower cavity, an opening is formed in the partition plate, a sealing block is fixedly installed in the opening, and a vacuum superconducting pipe is fixedly installed at the bottom of the drying oven body. On one hand, hot air generated by the vacuum superconducting pipe can be conveyed to needed materials, on the other hand, adsorption force during air suction can serve as apower source, and air in the vacuum superconducting pipe can be stirred conveniently, so that the liquidity of the hot air in the drying oven is effectively guaranteed, the situation that part of local heat of the vacuum superconducting pipe cannot be fully adsorbed and utilized due to direct adsorption is avoided, and the energy-saving efficiency of the drying oven is further guaranteed, and in addition, the cost of the mechanism is low, and the heat effect utilization rate can be fully increased again.

The invention relates to a multi-layer cooking appliance containing magnalium, which comprises a cooking appliance body and a handle arranged on the cooking appliance body, wherein the cooking appliance body is formed by sequentially stamping a plurality of metal composite boards, namely a 304 stainless steel layer with the thickness of 0.5-2mm, a magnalium layer with the thickness of 0.5-2mm, a pure aluminum layer with the thickness of 0.5-2mm, and a 430 stainless steel layer with the thickness of 0.5-2mm from inside to outside. The multi-layer cooking appliance has the benefits that the composite board can adapt to various cold processing such as deep drawing, stretching, bulging, bending, punching and hauling, without layering, so that the cooking appliance can still keep the original firm bonding state; and the cooking appliance is light in mass and rapid in heat transfer, has good heat transfer property, saves energy, and is suitable for various different cooking ranges.

An electric heating device includes a housing having a partition wall which separates a connection chamber from a heating chamber for dissipating heat and from which at least one receiving pocket, protruding into the heating chamber as a heating rib tapering towards its lower, closed end protrudes. A PTC heating element includes at least one PTC element and conductor tracks for energizing the PTC element with different polarities. The conductor tracks are electrically conductively connected to the PTC element and are electrically connected in the connection chamber. A pressure element is received which holds heat extraction surfaces of the PTC element abutted against oppositely disposed inner surfaces of the receiving pocket. The pressure element includes a sheet metal strip which, by punching and bending, forms spring segments protruding from the plane of the sheet metal strip. The spring elements are provided in a planar manner distributed over a heat extraction surface of the PTC element provided adjoining the respective pressure element.

The invention relates to a device and a method for processing active carbon containing heavy metals and fine dust. The device comprises a feeding device, a plasma furnace, a waste heat recovery device, a sharp quenching device, a desulphurization and dust removal tower and a condensing device, wherein the desulphurization and dust removal tower comprises a seriflux storage section, a flue gas stabilizing section, a filtering section and a defogger; the filtering section of the desulphurization and dust removal tower comprises a plurality of filtering units; and the inlet of the filtering unit is in the shape of a circular cylinder, an outlet is in the shape of a horn, the diameter phi 1 is 80 to 500mm, the diameter phi 2 is 200 to 900 mm, the divergence angle alpha is 4 to 9 degrees, the length L1 is 100 to 450 mm, and the length L2 is 600 to 2500 mm. The invention adopts the remolded desulphurization and dust removal tower, and is characterized by depriving the fine dust and heavy metals in the desulphurization at the same time, wherein the removal rate of dust with the size of 1 to 5 mum can reach more than 90%; and the removal rate of divalent mercury can reach more than 85%.

The invention provides a cabinet. The cabinet is provided with an inner wall and an outer wall, wherein the inner wall and the outer wall form a cavity. The cabinet is further provided with a heat conducting plate, wherein the heat conducting plate is arranged between the inner wall and the outer wall, the cavity is divided into an inner cavity and an outer cavity which are isolated mutually, the inner cavity is mutually communicated with the inside of the cabinet so as to form internally circulating air flows, and the outer cavity is mutually communicated with the outside of the cabinet so as to form externally circulating air flows. The cabinet is further provided with turbulent flow fins, wherein the turbulent flow fins are arranged in the inner cavity or/and the outer cavity and used for changing the internally circulating air flows or/and externally circulating air flows into eddy flows. The cabinet is provided with the heat conducting plate and the turbulent flow fins, so that the heat exchange capacity of the heat conducting plate is remarkably improved under the condition that flowing resistance of the air flows is only increased within a narrow range, the heat dissipation efficiency of the whole cabinet is improved, and sealing performance of the cabinet is ensured.

The invention relates to a heat exchanger suitable for multi-pressure-resistant shell underwater equipment and a using method of the heat exchanger. The heat exchanger suitable for the multi-pressure-resistant shell underwater equipment comprises pipe box cylinders which are arranged in parallel in an up-and-down interval manner; the two pipe box cylinders are transversely arranged; the two pipe box cylinders are supported and installed through a plurality of frames; the two tube box cylinders communicate with each other through a heat exchange tube bundle; a shell which penetrates left and right is surrounded outside the frames; the left end and the right end of the shell are open; end covers are arranged at the openings; a plurality of fresh water outlets are formed in the top surface ofthe shell; and a plurality of fresh water inlets corresponding to the fresh water outlets are formed in the bottom surface of the shell. The heat exchanger can be directly placed in seawater, the heat exchange work is achieved conveniently, through the large-caliber seawater inlets and the large-caliber seawater outlets can be conveniently realized, the trouble that seawater is conveyed into a heat exchanger in a cabin from a sea water pump in the prior art is avoided, and the heat exchanger is convenient and rapid to install and high in heat exchange efficiency.

The invention discloses a reflow furnace smoke removing method and relates to the technical field of electronic equipment soldering. The reflow furnace smoke removing method comprises the steps that S1, the surface of a printed circuit board to be soldered is coated with soldering paste, the soldering paste coating printed circuit board is put into a reflow furnace, the printed circuit board put into the reflow furnace enters a preheating area, water in the soldering paste is evaporated, soldering flux is used for wetting a component pin and a bonding pad, and the soldering paste begins to soften and cover the bonding pad so that the component pin and the bonding pad are isolated from the oxygen; and S2, then the printed circuit board enters a reflow area. According to the reflow furnace smoke removing method, the smoke removing effect is greatly enhanced, smoke solidified crystals are prevented from depositing on fan blades, great centralized cooling and filtering treatment is carriedout on reflow gas with soldering flux smoke in the reflow furnace, the purpose of guaranteeing that the printed circuit board carries out soldering work well is achieved well, and therefore a manufacturing enterprise of the printed circuit board is completely facilitated.

A device for treating particulate material (98), comprises a housing (12), a process chamber (44) for accommodating and treating the material (98), a base (34) provided with through openings for the process air (86), a lid (24) with an outlet (28) and an inlet (26) for the process air (86) and a wall (14) enclosing the circumference of the process chamber (44). The wall (14) comprises an inner wall (18) and an outer wall (16) at a radial separation therefrom, the inlet (26) for the process air (86) is arranged in the lid (24) and opens out in a cavity (66) formed between the inner (18) and outer wall (16) with a flow connection to the through openings in the base (34). According to the invention, the outer wall (16) is designed as a static supporting housing wall, the lid (24) is supported by the outer wall (16) and the inner wall (18) is designed for rapid heat transfer.

The invention discloses an array-type adjustable cage-type PCB inductor. A PCB is provided with a plurality of cage-type annular coils which are arranged in a matrix manner, the cross section of the annular body of each cage-type annular coil is rectangular or trapezoidal, and turns of coils of each cage-type annular coil are welded on the PCB through triangular strip pads which have the same number as the turns of coils and correspond to the turns of coils in position; the position, on the PCB, of the central part of a polygon formed by the plurality of cage-type annular coils is provided with a center pad, and the center pad is connected with any triangular strip pad connected with each cage-type annular coil. According to the invention, gaps are left among turns of each cage-type annular coil, and are benefit for heat dissipation; by arranging the triangular strip pads, when the inductor is welded on the PCB, 1/3 length of each turn of inductor coil is welded on the PCB, and the coils are fixed well; multiple areas are welded on the PCB, the thermal transmission effect is better; when the inductance value is adjusted, the user only needs to take out different triangular strip pads and connect the triangular strip pads to the center pad, the inductance value adjustable scope is large, the relative inductance value is obtained accurately, and the array-type adjustable cage-type PCB inductor is simple to operate.

The invention relates to a stator comprising at least one insulation disk (10), at least one interconnection piece (11) and at least one temperature sensor (12); the insulation disk (10) includes a holding element (13) for the temperature sensor (12), and the interconnection piece (11) includes a contact surface (14) for the temperature sensor (12); at least part of the interconnection piece (11) and at least part of the temperature sensor (12) are arranged and retained in the holding element (13); and the temperature sensor (12) is at least partially in planar contact with the contact surface (14) and is pressed against the contact surface (14) by a spring force and/or a clamping force.

A water inlet pressure-bearing pipe for reducing water inlet pressure is fixedly connected to one side end of a heat exchanger body, and a water outlet pressure-bearing pipe for reducing water outlet pressure is fixedly connected to the position, corresponding to the water inlet pressure-bearing pipe, of the other side end of the heat exchanger body. A water inlet pressure-bearing flange for bearing water inlet pressure is fixedly installed at the position, close to the heat exchanger body, of one side end of the water inlet pressure-bearing pipe, a water outlet pressure-bearing flange for bearing water outlet pressure is fixedly installed at the position, close to the heat exchanger body, of one side end of the water outlet pressure-bearing pipe, and the water inlet pressure-bearing pipe and the water outlet pressure-bearing pipe are each provided with a semicircular pipe. The water inlet pressure-bearing pipe, the water outlet pressure-bearing pipe, the water inlet pressure-bearing flange and the water outlet pressure-bearing flange are arranged at the two ends of the heat exchanger body correspondingly, so that the heat exchanger body can reduce the pressure of inlet water and outlet water to the maximum extent in the water inlet and outlet processes, the heat exchange effect of the heat exchanger body is guaranteed, and the heat transfer effect of the heat exchanger body is enhanced.

The invention discloses a multi-cavity activation furnace. The multi-cavity activation furnace comprises a furnace body, a hollow heating channel is axially arranged at the internal axle center of thefurnace body, an inner activation cavity is formed between the outer wall of the heating channel and the inner wall of the furnace body , the heating channel is formed by encircling and splicing theleft and right ends of N same plates, the cross section of the heating channel has an N-regular-polygon-shaped shape, the left and right ends of every plate respectively outwards extend into the innerwall of the furnace body, and the extending plates divide the inner activation cavity into a plurality of activation sections. The internal of the furnace body forms a structure with the internal being the heating furnace and the external being the inner activation cavity through the plates, and the plates are integrally molded and can well transfer heat and greatly improve the contact rate of acarbonized material and the plates, so activated carbon has the advantages of high yield, high quality and good quality.

The invention belongs to the technical field of chemical production, and discloses a rapid cooling device for chemical production. The rapid cooling device for chemical production comprises a storage mechanism, a first cooling mechanism and a second cooling mechanism. According to the rapid cooling device for chemical production, through mutual cooperation of the first cooling mechanism and the second cooling mechanism, chemicals carried in a storage tank can be subjected to internal and external synchronous cooling treatment; cooled compressed air is evenly dispersed in the storage tank in a bubble shape from the inner part of a cooling cylinder through small holes in stirring rods, so that the heat exchange area of the compressed air and the chemicals is increased, rapid cooling of the chemicals is achieved; a baffle plate with a cavity is arranged below a fixing plate, and the rapid cooling of the chemicals at the position without the stirring rods below the fixing plate is achieved, so that the time consumed for cooling the chemicals is greatly shortened, the heat exchange effect of the chemicals is better, and the production quality is improved.