122results about How to "Uniform temperature rise" patented technology

A kind of mining oil gas method of the convection heating up oil-shale, involves the underground solid state energy and the mineral mining method improvement. The existing technical mining method efficiency is low, the cost is high, the scale is small, the big area implements and lacks the market competition ability with difficulty. This invention through in the ground arrangement group well, and selects the compression fracture method causes the group well to be interlinked, then the gap takes turns to choose the note hot-well and work-well, hot-well pours into 400 deg.C - 700 deg.C steam along the note oil-shale the ore level, heats up the ore level causes cheese root thermal decomposition to form the oil gas, and carries after the low temperature steam or the water along the production separates to the ground, finally forms the oil gas product. In the separation process may simultaneously the pre- hot water, and uses the water-injection well withdraws with work-well the convection way dries up oil-shale and the ore level around shale region afterheat, thus realized the goal of this invention is fast, big scale, low cost from oil-shale ore level mining oil gas.

The invention refers to a manufacturing method for selenide or sulfide of copper, indium or gallium. In the manufacturing process of copper, indium or gallium selenide and / or sulphur optical absorbing layer film, uses vacuum magnetism control splattering, heating and evaporating method or chemical water bath electrodeposition method to deposit a metal preprocessed layer with chemical formula proportion of Cu, In, Ga on the natrium calcium glass Mo substrate, then carries on optical selenide or / and sulfide reaction in the thermal process vacuum room, the character lies in: the battery base board deposited with the preprocessed layer are heated upon the two surfaces, the back surface of the base board is heated with contacting heat reservoir, the surface coated with metal preprocessed layer is heated with light irradiation, when the temperature rises to the 400-560oC evenly and quickly, carries on the cooperative heating with contacting heat reservoir and light irradiation to the selenium source or the sulphur source, makes the metal preprocessed layer converted into the compound semiconductor photoelectric film material.

This invention provides a refrigerator for suppressing adverse effects of warm air on foods by uniforming temperature rise in a storage room during defrosting operation. A defrosting heater is energized until a temperature detected by a FD sensor gets to a defrosting ending temperature (8[deg.]C). During defrosting operation for defrosting a F evaporator, a F fan is kept stopped. When the FD sensor detects a temperature not lower than than a set temperature (2[deg.]C) set lower than the defrosting ending temperature (8[deg.]C), the F fan is reversed for a preset time (one minute).

The invention discloses a device used for a fiber laser and capable of filtering out cladding light. The device comprises a double-cladding energy transferring fiber, the double-cladding energy transferring fiber is composed of a fiber core, an inner cladding, an outer cladding and a coating from inside to outside in sequence, one or more sections in the middle of the double-cladding energy transferring fiber are filter-out sections with the coating and the outer cladding removed, at least one core-less fiber with the coating removed is arranged on the periphery of the inner cladding of the filter-out sections in the circumferential direction, the core-less fiber is parallel to the double-cladding energy transferring fiber in the axial direction, a glass sleeve tube is arranged outside the core-less fiber, all of the core-less fiber, the inner cladding of the filter-out sections and the fiber core are covered by the glass sleeve tube, and the outer surface of the glass sleeve tube is coated with a light guiding gel layer. The device used for the fiber laser and capable of filtering out the cladding light is simple in structure, fast and even in heat dissipation, good in safety and capable of effectively filtering out the cladding light in the fiber laser.

The invention discloses a floating type brake pad. The floating type brake pad comprises a back plate, a plurality of friction blocks, disc springs and clamping springs, wherein the friction blocks are arranged on the back plate, the disc springs are arranged between the friction blocks and the back plate, and the friction blocks are connected to the first back plate in a floating mode through the clamping springs. Positioning grooves are formed in the back plate, and the disc springs are arranged inside the positioning grooves. The back plate is divided into a plurality of concentric circular rings by using the circle center of a brake disc matched with the brake pad as the circle center. The circular rings are equal in radial length. The friction area of the friction block inside each circular ring is not larger than 15% of the standard average friction area compared with the standard average friction area. According to the floating type brake pad, the problem of fatigue cracks caused by instantaneous stress concentration during braking of existing disc springs is solved, meanwhile, gaps between the back plate and the friction blocks are reduced, oscillation of the friction blocks is small, meanwhile, the problem of eccentric abrasion of the friction blocks is avoided, and the brake stability is greatly improved.

The invention discloses an areca nut drying automatic temperature control moisture discharge system which comprises a control unit. The control unit is respectively connected with a temperature and moisture sensor, a heat pump and a fan. Due to comprehensive utilization of the heat pump and the fan, temperature degree and moisture degree are controlled in a combined mode, so that stable and automatic control is maintained in the process of drying areca nuts. The temperature can be controlled to rise evenly in the drying process under normal temperature and ordinary pressure, the temperature in a drying box is even, dewatering speed is reasonably controlled and therefore core contracting degree and drying degree are precisely controlled. In the meantime, the system can achieve control over processing process so that the system can flexibly adapt to different geographical environments. Processing in an optimal mode can be conducted aiming at different types of the areca nuts, so that core contracting shapes of the areca nuts are better and taste of the areca nuts is guaranteed. The areca nut drying automatic temperature control moisture discharge system can be widely used in the field of food processing.

The invention discloses a barbecue oven which comprises an oven body, an oven cover used for sealing the oven body, a bottom frame used for supporting the oven body, a combustor used for combusting fuel and a feeding device used for conveying the fuel to the combustor. The combustor comprises a combustion chamber, a heating pipe, an air guide box and a fan, the heating pipe is arranged at the bottom of the combustion chamber, the fan is arranged on the box wall of the air guide box, the top of the combustion chamber is communicated with the bottom of the oven body, the bottom of the combustion chamber is embedded into the air guide box, and a ventilation opening communicated with the air guide box is formed in the combustion chamber. The feeding device comprises a hopper used for loading the fuel, a fuel guide pipe, a feeding screw rod arranged in the fuel guide pipe and a feeding motor used for driving the feeding screw rod to rotate. According to the barbecue oven, the feeding quantity of the fuel and the air volume of the fan can be automatically controlled, temperature in the oven can be changed evenly, and the heat preservation effect is good.

The invention relates to a permanent magnetic traction motor, to be specific, relates to a high speed train totally enclosed type permanent magnetic traction motor, which is used to solve the problems of the conventional totally enclosed type permanent magnetic motors such as poor cooling effect and inability of controlling internal even temperature rising of motor. The technical scheme provided by the invention is that a base is provided with axial air vents; end covers are provided with internal air ducts, which are connected with the base in a sealed manner, and the end covers, the internal air ducts, and the base air vents are used to form cooling wind paths in an encircled manner; the end covers are provided with cooling air inlet holes, and the outer sides are provided with cooling air outlet holes; two ends of a rotating shaft are fixedly provided with sealing discs, which are disposed between the end covers and the base, and are connected with the end covers in a sealed manner, and blades are fixedly disposed on the sealing discs between the cooling air outlet holes and the cooling air inlet holes; and self-circulation sectors are fixedly disposed on permanent magnet baffle plate clamping rings. The high speed train totally enclosed type permanent magnetic traction motor is advantageous in that 1, the three wind paths are used for the independent temperature control of the integral body of the motor; 2, the internal temperature rising of the motor is controlled in a balanced manner, and the overhigh temperature rising or the uneven temperature rising of the motor is prevented; 3, the independent cooling wind paths are designed for bearings, and then failure caused by the overhigh temperature of the bearings caused by thermal radiation and heat conduction is prevented.

A control unit can select a large-number control zone model in which the number of control zones, which are independently controlled, is large, and a small-number control zone model in which the number of control zones, which are independently controlled, is small. When a temperature is increased or decreased, the control unit can select the small-number control zone model so as to control, based on signals from temperature sensors of the respective control zones C1 . . . C5 whose number is small, heaters located on the respective control zones C1 . . . C5. When a temperature is stabilized, the control unit can select the large-number control zone model so as to control, based on signals from the temperature sensors of the respective control zones C1 . . . C10 whose number is large, the heaters located on the respective control zones C1 . . . C10.

The invention belongs to the technical field of manufacturing of metal bipolar plates for fuel cells, and particularly relates to a fuel cell titanium alloy bipolar plate electromagnetic-thermal composite forming device and method based on multi-time-sequence pulse current. A power module of the device comprises a plurality of sets of pulse power sources, the pulse power sources discharge a titanium alloy blank and a Helmholtz coil according to the time sequence, preheat the titanium alloy blank, generate pulse current in the titanium alloy blank, generate a pulse magnetic field in the Helmholtz coil, generate pulse electromagnetic force under the combined action of the pulse current and the pulse magnetic field, and drive the titanium alloy blank to rush to a mold, and forming of a titanium alloy bipolar plate is achieved. Through multi-level time sequence pulse current discharging, the plasticity and forming performance of titanium alloy are greatly improved through the thermal effect of the titanium alloy at high temperature, the electro-plastic effect of the pulse current and the high strain rate effect of the pulse electromagnetic force, and high-quality forming of the titanium alloy bipolar plate is achieved.

The present invention provides a thermal damage protection device of a semiconductor power conversion device. Temperature of components used in the semiconductor power conversion device rises uniformly, thus the components of the semiconductor power conversion device can be prevented from heated and damaged. In the semiconductor power conversion device, the temperature margin of each component in relative to an allowed temperature is calculated, thus break-over rate of a component with low temperature margin is reduced to control the semiconductor power conversion device, thus the temperature of the component used in the semiconductor power conversion device rises uniformly.

The invention relates to a method for producing rubber. The novel method for producing natural rubber comprises the following: firstly, an agglomeration step, and secondly a drying step, in which a barrel / screw extrusion mechanism is adopted to apply force to a bulk gel of rubber to further expulse free water, and then the rubber is compressed by the relative movement of the screw and the barrel, and temperature and pressure of the rubber are raised rapidly through self mechanical friction on the basis of the friction heat generation principle; after the energy repertory of rubber arrives at a certain level, an adiabatic flash vaporization is adopted to separate water from natural rubber to accomplish the primary drying of the natural rubber; and thirdly a treatment of compensated drying to obtain the final product of rubber. The technology provided by the invention has less time consumption, colorless and semi-transparent final product and significantly improved quality. The falling-behind status from the agglomeration of emulsified rubber to drying in the prior art is changed, the labor intensity is greatly decreased, and quality of the product and production efficiency are improved.

The invention relates to a preparation method of a red mud sinking agent, which comprises the following steps of mixing acrylamide, acrylic acid and urea with deionized water in weight percent, cooling and regulating the pH value to end the material preparation; mixing the ingredients, chelating agent and chain transfer agent in a reaction kettle, sequentially adding a third section oxidant, a second section oxidant, a first section oxidant, a reducer and an auxiliary reducer in nitrogen introducing process, continuously introducing nitrogen, and than stopping nitrogen introduction, sealing, and carrying out insulation polymerization reaction; opening a reaction kettle bottom valve after being placed, pressing out a rubber block by compressed air and disintegrating the rubber block into colloidal particles by a granulator; and hydrolyzing the colloidal particles, and preparing a product through treatments of granulation, drying, crushing, screening and packaging. The aluminum oxide plant red mud sinking agent has the advantages of high molecular weight, fast dissolving speed, high hydrolysis degree and low cost.

The invention discloses a transformer with a grade-insulation structure, and the transformer comprise a low-voltage coil, a high-voltage coil, a shielding electrode, a grade-insulation structure and an iron core, wherein the low-voltage coil and the high-voltage coil are respectively arranged at the inner side and outer side of the grade-insulation structure, the iron core arranged at the inner side of the low-voltage coil is provided with a radiating folding screen, and a shield is arranged at the outlet electrode of the high-voltage coil to form the shielding electrode; and the grade-insulation structure comprises a first insulation layer, a second insulation layer, a third insulation layer, an angle ring, a fourth insulation layer, a fifth insulation layer and a sixth insulation layer which are arranged from inside to outside, and the angle ring stretches out of the low-voltage coil and the high-voltage coil. The transformer with the grade-insulation structure has the advantages that the material cost and energy consumption of the transformer are greatly reduced, the reliability of the product is improved, and the service life is prolonged.

A converter can selectively use reactors through an ON-OFF control on relays by an electronic control unit. The first reactor is disposed as a component of the converter separately from a main battery. On the other hand, the second reactor is so disposed as to have a heat transfer path between the second reactor and the main battery. At least based on the output from the temperature sensor, in a low temperature state of the main battery, the electronic control unit turns off the first relay, and turns on the second relay, thereby configuring a reactor of the converter by using the second reactor.

This invention discloses a ceramic-carbon heating pipe having a heating matrix, an electrode lead-out rod is connected with both ends of matrix sleeved with a protection pipe, insulation and heat conduction powder is filled between matrix and protection pipe. Its electric-heat transformation rate reaches as high as 99.6% and is oxidation resistant, not easy to be broken with a long work life to 50000 hours, 1.5 times higher than that of the national standard.

The invention belongs to the technical field of food processing, and particularly relates to a device integrated with dough making and dough waking functions. The device comprises an outer barrel, an inner barrel, a first motor, a second motor and an air heater, wherein the outer barrel is arranged outside the inner barrel in a sleeving manner; one end of the inner barrel is provided with a first rotating shaft; the other end of the inner barrel is connected with the outer barrel through a hollow rotating shaft; a first cavity is formed between the inner barrel and the outer barrel; a second rotating shaft is arranged in the inner barrel; the second rotating shaft is provided with an anchor type agitating rod and 3*7 agitating vanes; a temperature sensor, a humidity sensor and a dehumidifier are arranged in the inner barrel; the side walls of the outer barrel and the inner barrel are correspondingly provided with an outer barrel dodge gate and an inner barrel dodge gate; the outer barrel is provided with a ventilation opening; the ventilation opening is connected with the air heater through a connecting pipe. By using the device integrated with the dough making and dough waking functions, which is provided by the invention, the problems of dough making and dough waking can be synchronously solved; moreover, the temperature in a machine body is more uniform during the dough waking; the fermentation effect is good.

The invention discloses a bracket-type LED fluorescent lamp, comprising a lamp body, terminations (1), (2) that are connected with the input and output two end parts of a bracket and that are provided with conductive terminals (3), (4), an LED light source circuit board (9), a constant-current drive power source (5); characterized in that: the lamp body is integrated with the bracket (8) as a whole, the bracket is a bar-shaped groove with a lug boss, slots of the LED light source circuit board are provided on two walls of the upper part of a cavity of the bracket and are spliced with an LED light source circuit board (7); on the LED light source circuit board, a spacing of the upper part of a PCB board of a light emitting diode is 4-7 mm, the constant-current drive power source is fixed at the lower part of the cavity of the bracket, two sides of the bracket is in clamping connection with the lower part of a transparent cover (6), the constant-current drive power source is connected via a lead wire (11) with the conductive terminals on the input and output two end parts and with the LED light source circuit board, respectively. The lamp is little in energy consumption, convenient in usage, simple and compact in structure, eye-pleasing in appearance and long in service life.

The present invention relates to a refrigerator, and aims at enabling the temperature of a cooler to rise uniformly by controlling refrigerant flowing into the cooler during defrosting, thereby obtaining the refrigerator with a high electricity saving performance. The refrigerator comprises: a compressor used for compressing the refrigerant; a condenser used for condensing the refrigerant compressed by the compressor; a decompressor used for performing decompression for the refrigerant condensed by the condenser; the cooler used for vaporing the refrigerant decompressed by the decompressor; a heating mechanism used for heating the cooler; and a refrigerant flow path adjusting mechanism used for blocking a refrigerant flow path. The refrigerator is characterized in that during defrosting operation of the cooler, the refrigerant flow path is blocked through the refrigerant flow path adjusting mechanism, so that the compressor stops, when the cooler is heated by the heating mechanism, after preset time or after the cooler reaches a preset temperature, the refrigerant flow path is opened.

The invention relates to a mixed ventilation cooling system and method for a permanent magnet traction motor. The cooling system consists of a radial ventilation cooling system and an axial ventilation cooling system which are independently driven to work, the radial ventilation cooling system is used for directly blowing and cooling a rotor and a permanent magnet, and the axial ventilation cooling system is used for cooling an end winding and balancing the temperature rise of the whole motor. According to the system and the method, radial ventilation and axial ventilation are separated in terms of mass transfer, and the wind resistance loss of the ventilation systems is relatively low; seriously heated positions in the motor are cooled by the two sets of ventilation systems respectively, so that high cooling performance is achieved; the radial ventilation cooling system is divided into two parts, namely, an air inlet passage and an air outlet passage, by a separation plate, and the temperature rise of cooling air entering each radial air vent is similar, so that axial balance of the temperature rise of the motor is ensured; circumferential balance of the temperature rise of the motor is ensured by the axial ventilation cooling system. The system and the method have the characteristics of good motor interior cooling effects and good motor temperature rise balance, and are suitable for popularization and application.

The invention discloses a discrete device and a discrete method for heating a straight welded pipe by coils. The device comprises a discrete induction heating device, a temperature measuring feedbackdevice and a control console. The discrete induction heating device comprises a coil bracket, a coil fixing sleeve, a control slide block and five horizontally arranged induction coils adjustable in separation distance. Each induction coil is controlled to be adjusted by the control console. The temperature measuring feedback device comprises an outer wall temperature measuring device and an innerwall temperature measuring device. The outer wall temperature measuring device comprises five infrared thermodetectors L1-L5. The inner wall temperature measuring device comprises five infrared thermodetectors L6-L10. Dynamic temperature measurement on heating points in various stages in welded pipe welding seam is carried out constantly, the control console receives a temperature feedback signalof the temperature measuring feedback device to control and adjust the positions of the induction coils constantly, and finally, the inner and outer temperatures at the weld seam of the welded pipe meet a heat treatment temperature demand synchronously, so that the heat treatment effect is optimized and the heat treatment quality is improved.

A heat diffusion sheet includes a graphite sheet having a thickness of from 20 μm to 80 μm, an acrylic adhesive layer having a thickness within a range of from 5 μm to 15 μm and not containing a thermally conductive material, a polyester film having a thickness within a range of from 5 μm to 30 μm, and a silicone adhesive layer thinner than the polyester film, having a thickness within a range of from 2 μm to 25 μm, not containing a thermally conductive material and having a peeling strength of from 0.005 N / cm to 1.0 N / cm, sequentially laminated from the graphite sheet. Heat generated by the object to which the silicone adhesive layer is to be adhered is easily transferred to the graphite sheet and the heat diffusion sheet can be peeled off and reused easily.

The invention is a thermosensitive resistance heating device, and its character: two sides of the thermosensitive resistance piece are connected with two electrode plates, which are connected with power supply, there is insulating layer in each electrode, and the insulating layer is packaged by metallic sealing pipe, one outer side of which is connected with a cooler, and the other one connected with an energy storage body. When acting as room heating electric radiator, it has no light loss, high thermal efficiency, remarkable saving energy effect, and when adopting room skirting board mode for disposition, it occupies a little space and simple to install.

The invention provides a preparation method of a nitrogen-doped carbon-loaded platinum-based catalyst for a fuel cell. The preparation method comprises the following steps of preparing nitrogen-dopedcarbon powder, preparing a nitrogen-doped carbon powder polymerization body, preparing a nitrogen-doped carbon-loaded platinum-based mixed solution and preparing a product. According to the method provided by the invention, the utilization rate of a Pt catalyst is greatly improved, the performance and the stability of the Pt catalyst are improved, the proton transmission function is achieved, andthe cost is greatly lowered. According to the technical scheme provided by the invention, an intermittent microwave mode is adopted, so that the reaction temperature can be well controlled, the temperature rise is uniform, and the repeatability is high.

The invention relates to a connection fitting for a converter station valve hall. The connection fitting for the converter station valve hall comprises two tubular bus bars which are arranged obliquely or vertically, wherein more than two bent flexible conductors are connected between the two tubular bus bars; the connecting line of the centers of the flexible conductors on the sections, vertical to the extension directions of the flexible conductors, of the bent parts of the flexible conductors is a curve; the flexible conductors distributed at two ends of the curve are called end-part flexible conductors; the flexible conductors distributed between the end-part flexible conductors are called middle flexible conductors; and the diameters of the end-part flexible conductors are greater than those of the middle flexible conductors. According to the skin effect of currents, the currents of the end-part flexible conductors are greater than those of the middle flexible conductors, so that the flexible conductors with relatively large diameters are selected as the end-part flexible conductors; the flexible conductors with relatively small diameters are selected as the middle flexible conductors; the temperature rises of the end-part flexible conductors and the middle flexible conductors are uniform; and over-high temperature rises of the flexible conductors areprevented.

The invention provides a ceramic crucible for a galvanizing furnace and a production method thereof, wherein the ceramic crucible is prepared by the following materials by weight percent: 75%-78% of silicon carbide sand, 12%-16% of metallic silicon powder, 0.7%-1% of clay, 3%-5% of micro powder binding agent, 0.3%-0.4% of rare metal additive, and 5%-6% of glue. According to the ceramic crucible for the galvanizing furnace, the micro powder binding agent and the additives such as rare metal (yttrium) are added into materials to improve the formability of the raw materials of a ceramic green body, and the property of the silicon nitride combined the silicon carbide material is modified to improve the thermal shock resistance and the using property of the material, so that the material has the advantages of high temperature resistance, good molten zinc corrosion resistance, long service life and the like; and the crucible is integrally formed for one time through pressing by a vibrating press, so that the uniformity of the product density is ensured and the thermal shock resistance of the product is improved.