618results about How to "Fast heat exchange" patented technology

An improved medical pad for contact thermal exchange with a patient includes a fluid circulation layer for containing a thermal exchange fluid circulatable therethrough, a first port and a second port for circulating the thermal exchange fluid in to and out of the fluid circulation layer, and a hydrogel layer interconnected to and extending across one side of the fluid circulation layer to define an adhesive surface for adherence to a patient's skin. The hydrogel layer comprises an ultra violet light-cured composition that includes a cross-linking copolymer in an amount of between about 15% to 30% by weight of the composition, water in an amount of between about 15% to 40% by weight of the composition, and glycerol in an amount of between about 25% to 35% by weight of the composition. The hydrogel layer is provided to have a thermal conductivity of at least about 1.9 ca//hr-cm-° C.

A carbon fiber heating source includes a bundle of carbon fibers combined with glass fibers. The bundle is surrounded with a silicone coating layer and has high tensile strength responsive to bending and tension while emitting heat at high temperature. The carbon fiber heat emitting source includes heat emitting fibers formed by combining carbon fibers with glass fibers. Connection terminals are formed at both ends of the heat emitting fibers so that electricity can be applied thereto. A coating member coats the surfaces of the heat emitting fibers and the connection terminals. The coating member may be a silicone coating layer formed on the heat emitting fibers and the connection terminals. The coating member may be a quartz pipe that is filled with LPG and hydrogen and receives and seals the heat emitting fibers such that only a portion of the connection terminals is exposed from the both ends.

The invention relates to a thermophone device, which belongs to the technical field of sound-producing devices. The thermophone device comprises a sound-producing element and a signal input device connected with the sound-producing element. The thermophone device is characterized in that the sound-producing element comprises at least one grapheme film structure; and the signal input device is used for inputting a signal to the grapheme film structure, so that the grapheme film structure can be used for changing the density of an ambient medium and sending out sound wave. The thermophone device has no mechanical vibration and can be used for generating high sound pressure output within a frequency range of 10 to 0.1 million of Hz. The invention has the advantages of high reliability, flexibility, transparency, low cost and high performance and can be widely applied to electronic fields of mobile phones, MP3 (Moving Picture Experts Group Audio Layer-3), MP4 (Mobile Pentium 4), televisions, computers, ultrasonic imaging, ranging systems and the like.

An outdoor unit, connected with indoor units by pipes to constitute a refrigerant circuit, includes a compressor configured to compress and discharge refrigerant, a plurality of parallel heat exchangers configured to allow heat exchange between air and the refrigerant, a first defrosting pipe serving as a flow path for branching a part of the refrigerant discharged by the compressor and allowing the refrigerant to flow into the parallel heat exchanger to be defrosted for defrosting, a first expansion device configured to decompress the refrigerant passing through the first defrosting pipe, a second expansion device configured to adjust the pressure of the refrigerant that passed through the parallel heat exchanger to be defrosted, and a controller configured to control the second expansion device such that the pressure of the refrigerant that passed through the parallel heat exchanger to be defrosted falls within a predetermined range.

The invention relates to a chip cooling system, which comprises a chip heat conduction plate used for primary heat exchange, and an annular heat pipe used for secondary heat exchange, wherein a plurality of micro-channels are arranged on the chip heat conduction plate side by side, the micro-channels are connected with a circulating pipeline provided with a pump simultaneously to form a circulating loop, and the circulating loop is filled with liquid I; and the annular heat pipe is sleeved in the circulating loop to form a sleeving structure, the annular heat pipe is filled with liquid II and gas, and the pressure intensity of the gas is always less than the atmospheric pressure intensity. The chip cooling system combines the micro-channels with the annular heat pipe to form a two-stage heat exchange system, the micro-channels can provide large radiating heat flux and can absorb heat on the chip timely, the annular heat pipe fully utilizes effects such as phase change and gravity as a driving force, the radiating efficiency is high, and the cost is low; and the heat passes through the circulating loop and the annular heat pipe from the chip and is radiated to the environment, the radiating power is high, and the effect is good.

The invention provides a single-tank, double-pipe and bidirectional electric heating device and an air energy instant electric water heater. The single-tank, double-pipe and bidirectional electric heating device comprises a cylindrical tank body, the two ends of the tank body are connected with an upper end cover and a lower end cover in a sealing mode, the lower end cover is provided with a water inlet, a water outlet and a binding post, the tank body is internally provided with two layers of concentric pipe bodies which are an inner pipe body and an outer pipe body, an electric conduction heating body is arranged on a space layer between the inner pipe body and the outer pipe body, and a communicated water flow channel is formed by the inner channel of the inner pipe body and the annular channel between the tank body and the outer pipe body. The path length of water flow is increased, and the heating area of the water flow pipe bodies is increased by placing pipe bodies into the single tank body to divide the space inside the tank body, the process of obtaining the heating energy directly and bidirectionally transmitted by the heating body is accelerated, the heating and acting heat effect ratio per unit time of the tank body is effectively improved, and the power loss and the heating loss are reduced.

The invention provides a floor air conditioner. The floor air conditioner comprises an indoor unit. The indoor unit comprises a front panel, a back panel, a left panel, a right panel and a top cover plate. An inner air duct of the indoor unit is defined by the front panel, the back panel, the left panel and the right panel. A mixed air outlet is formed in the front panel. A non-heat-exchange air inlet, an induced draft fan arranged corresponding to the non-heat-exchange air inlet and an air guide device for opening or closing the non-heat-exchange air inlet are arranged on the top cover plate. The induced draft fan is used for leading indoor non-heat-exchange air in the internal air duct through the non-heat-exchange air inlet. The non-heat-exchange air can be led in and mixed with heat exchange air to form mixed air, and the mixed air is blown off from the mixed air outlet; the circulating air volume and the heat exchange speed of the indoor unit are increased; the non-heat-exchange air inlet is formed in the top cover plate; air is led through the induced draft fan, and no ventilating air duct needs to be arranged; and the height of a heat exchanger can be increased, and then the capacity of the heat exchanger is improved.

The invention provides a multifunctional viscose with functions such as temperature regulation and bacterium resistance, a preparation method of the viscose and a fabric. The multifunctional viscose comprises a graphene component and phase-change microcapsule particles; the phase-change microcapsule particles comprise polymer capsule walls and phase-change materials embedded in the polymer capsule walls; the phase-change materials are selected from one or more of n-tetradecane, n-pentadecane, n-hexadecane, n-heptadecane, n-octadecane, n-nonadecane, n-eicosane and polyethylene glycol E600. According to the multifunctional viscose, by mainly using the heat storage function of the phase-change materials and the heat conduction function of graphene, the viscose can regulate the temperature and balance the heat. The graphene component has the bacterium resistance and far-infrared transmission capacities. When the multifunctional viscose is used as the garment fabric, the temperature and humidity micro-environment of the human body can keep balance, the human body keeps a good and comfortable wearing environment as long as possible, the multifunctional viscose has the bacterium resistance function, and the health of the human body is protected.

The invention discloses a high-power LED (light emitting diode) grapheme-based heat radiation device, which comprises a base plate, wherein the base plate is pasted on the bottom surface of an LED light source and is used for heat conduction, fins for achieving the heat radiation effect are arranged on the base plate, the bottom surface of the base plate is provided with a single-layer grapheme-based interface, and contact interfaces of the bottom surface of the LED light source and the single-layer grapheme-based interface are filled with composite layers of grapheme and heat conduction bonding agents. The high-power LED grapheme-based heat radiation device has the advantages that the horizontal direction of the single-layer grapheme-based interface has very high heat conductivity, a great amount of concentrated heat can be fast conducted to the base plate and the fins, and through the corrugated design and the reasonable layout of the fins, the convection heat exchange capability of the fins and the air can be improved, so a great amount of concentrated heat is fast conducted out, in addition, the convection heat exchange heat is radiated out, the heat radiation efficiency is high, the heat radiation effect is good, and the temperature of the heat radiation device is uniform.

The invention discloses an optical secondary module and an optical module. The optical module comprises at least one optical secondary module. Each optical secondary module disclosed in the inventioncomprises a base body, pins, a heat sink, a temperature regulator and an optical transmitter; the pins are mounted on the base body and run through from the bottom surface to the top surface of the base body; the heat sink is mounted on the top surface of the base body, and a groove is formed in one side, towards the pins, of the heat sink; and the temperature regulator is positioned in the grooveof the heat sink. One heat exchange surface of the temperature regulator is laminated with the inner wall of the groove, and the optical transmitter is arranged on the other heat exchange surface ofthe temperature regulator so as to ensure efficient heat transfer between the optical transmitter and the temperature regulator. By virtue of the optical secondary module and the optical module disclosed in the invention, the heat dissipation effect of the optical transmitter can be improved.

Disclosed herein is a method of producing D-psicose. The method of producing D-psicose includes subjecting D-fructose to D-psicose epimerization to produce a D-psicose-containing solution, subjecting the D-psicose-containing solution to first cooling and ion purification, subjecting the purified D-psicose-containing solution to first concentration and second cooling, subjecting the D-psicose-containing solution, which has been subjected to first concentration and second cooling, to chromatography to obtain a D-fructose-containing mother liquor and a D-psicose-containing separated solution, and subjecting the D-psicose-containing separated solution to second concentration and third cooling to obtain D-psicose crystals, wherein the D-fructose-containing mother liquor produced by chromatography is reused in the D-psicose epimerization.

The invention discloses a heat exchanger which comprises a pipe shell. An outlet pipe is arranged on the upper side of the pipe shell. An inlet pipe is arranged on the lower side of the pipe shell. Both ends of the pipe shell are provided with pipe sheets. An end plate is arranged on one side of each pipe sheet. The pipe sheets are provided with clear openings corresponding to each other. Heat exchange tubes are arranged in the clear openings and communicated with the end plates. The heat exchange tubes are made of carborundum or silicon nitride. Glands are arranged inside the clear openings. The glands are connected with the outside diameter of one end of the heat exchange tubes; lug bosses are arranged on the inner side of the clear openings; multi-stage sealing devices are arranged between the glands and the lug bosses. The heat exchanger has the advantages that the heat diffusivity of the heat exchange tubes is very high, thus significantly improving the production efficiency; the dust does not deposit on the heat exchange tubes which are not blocked therefore; under the condition of the same production efficiency, the size of the heat exchanger is significantly reduced due to the improvement of the heat exchange efficiency, thus reducing the manufacturing cost and the running cost; the multi-stage sealing element is adopted, thus significantly improving the seal effect.

The invention, which belongs to the sounding apparatus technology field, relates to a flexible and transparent thermotropic sounding apparatus. The apparatus comprises a sound element and a signal input device connected with the sound element. The sound element includes a flexible and transparent substrate; and at least one conductive film structure and a pair of electrodes or multi-pair electrodes are arranged on the substrate, wherein one ends of the pair of electrodes or the multi-pair electrodes are connected at two sides of the conductive film structure. And an input terminal of the signal input device is connected with the other ends of the electrodes. Therefore, the conductive film structure changes density of surrounding mediums to emit sound waves. According to the invention, there is no mechanical oscillation on the sound element itself and the sound element is transparent and can be bent and stretched. The thermotropic sounding apparatus can generate high sound pressure output within a frequency range of from 101 kHz to 100 MHz as well as has advantages of high reliability, flexibility, transparency, low cost, and high performance; besides, the apparatus can be integrated with a display screen and simultaneously enables sounding and display functions to be realized. Therefore, the provided apparatus can be widely applied to electronic fields like a mobile phone, a MP3, a MP4, a television, a computer, ultrasonic imaging, and a range finding system and the like.

The invention provides an electric car heat management device. The electric car heat management device is provided with a battery pack, a controller, a motor and a heat exchange channel between heat exchangers on the basis of a conventional heat management system, so that recycling and utilization of waste heat are achieved. Meanwhile, the working modes can be more flexibly switched according to the external environment by arranging two sets of heat exchanger loops, for example, as the high temperature tolerance of the battery pack is poor and the high temperature tolerance of the motor and the controller is good, the starting temperature of the second loop can be set to be the lower value, the starting temperature of the first loop can be set to be the higher value, and accordingly selective control is achieved, and the energy utilization rate is optimized. When the device operates, the first loop connected with a motor cooling jacket and a controller cooling jacket in series or the second loop connected with a battery pack cooling jacket in series is started, refrigerant fluid enters the heat exchangers from an air compressor through an oil separator, and cyclic heat exchange is achieved under driving of a liquid pump.

The panel integral precise air conditioner includes one inner unit and one outer unit combined integrally and installed inside the same casing. The inner unit includes inclined disc type blower in the top, evaporator below the blower, water collector in the bottom of the evaporator, air heat exchanger below the water collector, filtering net in the front below the air heat exchanger, and compressor and humidifier behind the filtering net. The outer unit includes the first heat exchanger in the upper part, water tank below the first heat exchanger, axial flow blower below the water tank in the position corresponding to the air heat exchanger, and the second heat exchanger below the axial flow blower. The present invention combines the indoor unit and the outdoor unit integrally, embeds the integral into wall, and has raised refrigerating efficiency, saving in power and convenient installation.

The invention discloses a production technique of EPS (expandable polystyrene) foam articles. The production technique is characterized by comprising the following steps: pre-foaming, curing, feeding, preparing mould, heating and forming, water cooling, vacuum cooling, demoulding, trimming, drying, trimming, packaging and storing in warehouse, and the production technique improves the compressed air, water circular cooling and drying process. The technique disclosed by the invention has simple and reasonable technique procedures and utilizes two paths of compressed air supply systems, so that the pipeline pressure is very stable, an electromagnetic valve acts flexibly, a cylinder switching valve quickly and reliably acts, and a cooling water circulating system can quickly cool to improve the cooling efficiency, save the electric energy and vapor and reasonably utilize the energy sources; besides, a mixed mode of high and low temperature air is used, so that the articles are not deformed or expanded irrespective to the foaming density, the drying time is shortened and the resources are reasonably utilized.

The invention discloses an underground box-type substation. A storage chamber is arranged below the ground, a support frame is provided at the bottom of the storage chamber, a transformer box is provided at the upper end of the support frame, a cover plate is provided at the top of the storage chamber, and a transformer box is provided on the outer wall. There are cooling fins, a water storage tank is installed under the storage chamber, an air collection chamber is provided at the upper end of the water storage tank, a fan is installed in the air collection chamber, and a suction pipe is connected outside the air collection chamber. The end of the suction pipe is above the ground, and the top of the storage chamber is provided There is an exhaust pipe, and the end of the exhaust pipe is set above the ground. There are multiple ventilation pipes between the air collection chamber and the storage chamber. There are multiple water distribution pipes arranged side by side at the bottom of the storage chamber. Between the water distribution pipe and the water storage tank A circulation pipe is arranged between them, and a cooling circulation pump is arranged on the circulation pipe. The invention has the advantages of simple structure, convenient use, good cooling effect, high cooling efficiency of the transformer box, and prolongs the service life of the transformer substation.

The invention provides a milk bottle temperature adjusting device, belongs to the technical field of articles for daily use and solves the problem that existing milk bottles are low in temperature adjusting efficiency. The milk bottle temperature adjusting device comprises a barrel and two clamping plates, two rotating pipes are rotatably connected on the side wall of the barrel, a positioning rod is slidably connected in each rotating pipe in an inserted manner, an extending-in end of each positioning rod is fixedly connected with a connecting plate, a sliding groove is formed in each of two inner side faces of each connecting plate, a sliding pin is arranged at each of two ends of each clamping plate, each sliding pin is slidably connected in the corresponding sliding groove, a control member capable of driving the rotating pipes to rotate back and forth is arranged on the barrel, and a transmission member capable of driving the sliding pins on the clamping plates to slide in the sliding grooves back and forth when the rotating pipes rotate back and forth. The milk bottle temperature adjusting device can quickly adjust temperature of a milk bottle containing milk and is high in efficiency.

The invention discloses a composite pulverized coal destructive distillation device and method and relates to a pulverized coal destructive distillation device and method so as to solve the problem that a hot carrier and pulverized coal are not ideally mixed in a mixer in the conventional coal fluidization destructive distillation technology. According to the device, one end of a hot carrier vertical pipe is connected with a raising pipe reactor, and the other end of the hot carrier vertical pipe is connected with a charring device; and one end of the raising pipe reactor is introduced with dry gas, and the other end of the raising pipe reactor is communicated with a destructive distillation reactor. The method comprises the following steps: 1, mixing high-temperature semicoke and pulverized coal in the raising pipe reactor, and carrying out a destructive distillation reaction; 2, inputting one part of high-temperature semicoke in the charring device into the raising pipe reactor through the hot carrier vertical pipe, and allowing the other part of high-temperature semicoke to enter a semicoke cooler through a discharging vertical pipe so as to be discharged into a semicoke storage tank after cooling; 3, reacting oil gas and semicoke coke in the destructive distillation reactor; and 4, returning the semicoke fine powder back to the destructive distillation reactor, allowing the semicoke fine powder to enter the charring device to serve as partially combusted semicoke through a semicoke conveying pipe, and raising the temperature to become a hot carrier after combustion. The device and the method are used for destructive distillation of pulverized coalwith the particle size of less than or equal to 5mm.

The disclosed tubular heater in use for electric water heater (EWH) includes heat exchange unit (HEU) and heating unit (HU). HEU is in metal multiple tube structure, in which at least one piece of tube is heating tube for the heating unit to be placed, and at least one piece of tube is as liquid passage tube (LPT). Tube connectors are setup at two ends of LPT. The heating tube can be in multiple tube structure for more than one HU to be installed in. HU can be bent to U shape, square shape, snake shape etc. Advantages are: (1) producing smaller EWH; (2) simple structure of HU, easy producing and low cost; (3) LPT is continuous tube without soldered dot so as to not produce leaking phenomena; (4) reasonable heat exchanging structure, and high thermal efficiency; (5) being not contacted to liquid, electric heating tube (EHT) is not be eroded, generates scale, and has long service life; (6) being in U shape or straight tube shape, EHT possesses low factory cost and steady quality.