57results about How to "Improve heat conduction and heat exchange speed" patented technology

The invention discloses a vacuum drying machine with a cooling section. The vacuum drying machine is composed of a drying bin with the cooling section, a hopper, a discharge device, an elbow, a gas guide pipe, a support, a vacuum unit, a heating device, a driving device and rails. The drying bin with the cooling section is composed of a shell, an inner bin, a heat conduction medium and a safety valve. The support supports a feed port and a discharge port of the two ends of the inner bin. The vacuum unit sucks gas in a bin body of the inner bin through a gas guide pipe. In the material drying process, the drying bin with the cooling section can be rotated on the support through the driving device, cooling vertical pipes arrayed spirally have functions of stirring and propelling materials, no dead corners exist during material drying, materials are not prone to caking when dried in the drying section of the inner bin, material drying time is shortened, material drying quality is uniform, dried materials are cooled in the cooling section, material drying efficiency is improved, the material drying effect is optimized, and green, energy-saving and environment-friendly drying is achieved.

The invention discloses a rotary drying storehouse with a cooling section. The rotary drying storehouse consists of a housing, an inner storehouse and a heat-conducting medium, wherein the apparent shape of the rotary drying storehouse is cylindrical; the housing is arranged on the outer surface of the inner storehouse; the positions, which are in contact with the storehouse body of the inner storehouse, at the two ends of the housing are sealed into an integer by virtue of a sealing device; an inner cavity between the housing and the inner storehouse is sealed and air-proof; a heat energy inlet and a heat energy outlet are formed in the upper surface of the housing; the inner storehouse consists of a storehouse body and radiating vertical tubes, wherein charge and discharge holes are formed in the two ends of the inner storehouse; one end of the inner storehouse is a drying section, and the other end of the inner storehouse is a cooling section; heat energy carried by the high-temperature heat-conducting medium carries out heat conduction and heat exchange on materials by virtue of the storehouse body of the inner storehouse and radiating tubes, so that heat conduction and heat exchange speed of heat energy is increased due to an increased heat exchange area, and therefore, the purpose of quickly drying the materials is achieved. When the materials are dried, radiating vertical tubes which are spirally arranged have functions of stirring and pushing during rotation under action of external force, so that the material drying quality is improved, and the dried materials are cooled at the cooling section.

The invention discloses a drum-type vacuum drier. The drum-type vacuum drier is composed of a heating and heat exchanging device, a rear support, a vacuum unit, a heating device, a driving device, a gas-guide tube, a raceway, a front support, an underpan, carriage wheels, a conduit and riding wheels. The drum-type vacuum drier can be fixed to a drying operation site and can also be moved to a plurality of different sites. An outer shell is fixed to the front support and the rear support and can not move. The driving device is in power connection with a conduction shaft of an inner bin. An air outlet formed in a sealing cap is connected to the vacuum unit through the gas-guide tube. Heat exchanging of the heating and heat exchanging device is three-dimensional inner-wall heat exchanging, and the heat exchanging area is increased by 12-60 times. Heat conduction and heat dissipation of a high-temperature heat conducting working medium are conducted through a bin body of the inner bin and heat dissipation stand pipes. The speed of heat conduction and heat dissipation of heat energy is increased. The drying efficiency of materials is improved. The purpose of rapid drying of the materials is achieved. The heat dissipation stand pipes and screw blades have a material stirring function, so that wet materials are not liable to be agglomerated in the drying and stoving process, and the quality of drying and stoving of the materials is optimized.

The invention discloses a vacuum net belt drying machine with double-layer heating plates. The vacuum net belt drying machine comprises a drying bin, net belt conveyors, heating devices, a vacuum unit, discharge valves, a feeding hopper, an air guide pipe, material stirring plates and material guide plates. One end of the air guide pipe is fixedly connected with an air outlet of the drying bin; and the other end of the air guide pipe is fixedly connected with the vacuum unit. The discharge valves are mounted at a feeding port and a discharge port of the drying bin. Upper-layer conveying beltsof the net belt conveyors pass through spaces between upper heating plates and lower heating plates of the heating devices. Heat energy inlets and heat energy outlets are formed in the heating plates,and guide plates are arranged in the heating plates. Heat-conducting media carrying heat energy carry out heat conduction and dissipation on materials on the upper-layer conveying belts through the upper heating plates and the lower heating plates, the heat conversion efficiency is high, and the losses are low, so that the heat conduction speed and the heat exchange speed are high, and the effective usage rate of heat energy conduction and exchange is high. The materials on the conveying belts are stirred by the material stirring plates under a conveying inertia effect of the conveying belts,so that the drying efficiency of the materials is improved, and the drying effect of the materials is optimized.

The invention discloses a thermo-tube drying storehouse capable of utilizing afterheat. The thermo-tube drying storehouse consists of shells, an inner storehouse, a discharging device, a heat conducting medium and a heat conducting working medium, wherein the three shells are respectively mounted over a preheating section, a drying section and a cooling section of the inner storehouse; the inner storehouse consists of a storehouse body, a cooling vertical tube and a helical blade; an inner chamber between the shells and the inner storehouse is filled with the heat conducting medium and the heat conducting working medium; the heat conducting working medium and the heat conducting medium are used for conducting heat and radiating heat by the storehouse body and the cooling vertical tube of the inner storehouse; the heat conduction speed and heat exchange speed of heat energy are increased; materials can be dried rapidly; the cooling vertical tube and the helical blade of the inner storehouse have the function of stirring the materials; wet materials are hard to cake during a drying process; the drying quality of the materials is improved; the materials can be cooled during the drying process; the heat energy released during cooling of the materials can be effectively used for preheating the materials, so energy-saving drying of the materials is realized.

The invention discloses a heating heat exchange device which is composed of a shell, an inner bin and a heat conduction working medium. The inner bin is wrapped by the shell, and the distance between the shell and the inner bin is 5-150 mm. The inner bin is composed of a bin body, a heat dissipation vertical pipe, a sealing cover, a conduction shaft and a spiral blade. The conduction shaft in the position, on the larger end of the inner bin, of the bin body can drive the inner bin to rotate. An exhaust port is formed in the upper surface of the sealing cover. The spiral blade and the heat dissipation vertical pipe are arranged on the bin body of the inner bin. Heat exchange of the heating heat exchange device is three-dimensional heat exchange of an inner wall. Under the condition of the same space volume, the heat exchange area of the heating heat exchange device is increased by 8-50 times, the high-temperature heat conduction working medium conducts heat conduction and dissipation through the bin body and the heat dissipation vertical pipe of the inner bin, the heat conduction and heat exchange speed of heat energy is increased, the material drying efficiency is improved, and the purpose of fast drying materials is achieved; and the heat dissipation vertical pipe and the spiral blade have the function of material stirring, so that the wet materials are not prone to being agglomerated in the drying process, and the drying quality of the materials is optimized.

The invention discloses a vacuum dryer. The vacuum dryer comprises a drying storehouse, a heat transfer device, grain discharge devices, a bracket, a lifting device, a valve, a feed hopper, an outlethopper, a sealing device, an online moisture test device, a vacuum set, a heating device, a gas guide tube, a heat conduction tube, a heat conduction medium and a thermal insulation layer, wherein thevacuum set is connected with an air exhaust port in the drying storehouse through the heat conduction tube; the valve is used for controlling the entry and exit of materials in the drying storehouse;the heat transfer device is connected with the heating device through the heat conduction tube; the drying storehouse is internally provided with 1-5 sets of grain discharge devices, the online moisture test device is arranged in the drying storehouse; the heat conduction medium carrying thermal energy directly performs heating and heat conducting on the materials through a heat pipe of the heattransfer device, the thermal conversion efficiency is high, loss is small, and the heat conduction and heat transfer speed is improved; waste-heat utilization can be carried out on the heat energy released by the condensable gas in the moisture in the condensation process of a condenser; the lifting device dries the materials circularly and drily; each grain discharge device has a stirring function, so that the drying quality of the materials is even, thereby improving the drying efficiency of the materials and optimizing the drying effect of the materials.

The invention discloses a hot pipe type three-barrel vacuum drier. The hot pipe type three-barrel vacuum drier comprises a hot pipe type three-barrel drying chamber, an air guide tube, brackets, a vacuum unit, a heating device, a driving device, a vacuum feeding-discharging device and a moving device, wherein the vacuum feeding-discharging device is supported and fixed through the brackets; two to five groups of roller paths and 1 to 2 groups of gear rings are arranged on the outer shell of the hot pipe type three-barrel drying chamber; carrier roller brackets comprise the brackets and carrier rollers; a transmission gear on a transmission of the driving device occludes with racks of the gear rings on the outer shell; the heating device directly heats the outer shell of the hot pipe type three-barrel drying chamber; and the air guide tube penetrates through the vacuum feeding-discharging device of the hot pipe type three-barrel drying chamber to be connected with the vacuum unit. According to the hot pipe type three-barrel vacuum drier, the structure is compact, the construction is simple, the layout is reasonable, the heat exchange rate of materials and heat energy is increased, heat energy of the heating device heats the materials, conducts heat to the materials, and dissipates heat of the materials through a heat-conducting medium, the thermal conversion efficiency is high, the loss is low, the materials can be continuously dried under a vacuum and low temperature environment, the material drying efficiency is improved, the material drying effect is optimized, and the hot pipe type three-barrel vacuum drier performs eco-friendly drying, and is energy-saving and environment-friendly.

The invention provides a roller vacuum drying bin with a cooling section. The roller vacuum drying bin comprises a heating bin, a drying bin, heat conduction work media and a gear ring. An externallyarranged driving device drives the gear ring on the drying bin, and the gear ring can drive the drying bin to rotate. The heating bin is arranged on the outer surface of the drying bin. The drying bincomprises a bin body, a heat dissipation vertical pipe, heat pipes, screw blades and a fixing bar. The heat pipes are an independent whole overall welded to the part, in a drying section of the drying bin, of a bin body. The two ends of the heat dissipation vertical pipe are fixed to the parts, in a cooling section of the drying bin, of the bin body. The heat conduction work media in the heat pipes are heated by heat energy carried by the heat conduction work media in the heating bin to generate phase change gasification, the heat energy carried by the gasified heat conduction work media conducts heat conduction and heat exchange through heat pipe feed, the heat conduction and heat exchange speed of the heat energy is increased through the enlarged heat exchange area, the material dryingefficiency is improved, and the purpose of fast material drying is achieved. During material drying, the screw blades have stirring and pushing functions, materials are not likely to be agglomerated when being dried in the drying bin, and the dried materials are cooled in the cooling section of the drying bin.

The invention relates to a four cylinder drying machine. The four cylinder drying machine comprises a four cylinder drying bin, a feeding exhaust device, a gear ring, a heating device, a support, a supporting wheel bracket and a driving device. Under the drive of the driving device, the four cylinder drying bin can rotate to work under the support of supporting wheels on the supporting wheel bracket. Heat energy generated by the heating device conducts heating and heat conduction on a heat-conducting medium in a heating bin through a bin body of the heating bin. The heat energy carried by theheat-conducting medium is used for conducting heat conduction and heat exchange on heat pipes in a double cylinder bin through an outer cylinder body and an inner cylinder body of an inner cylinder bin. The heat conversion efficiency is high, the loss is small, and the heat conduction and heat exchange speed is increased. When the four cylinder drying machine dries materials, excess heat air is not needed, the heat loss taken away by exhaust can be ignored, the overall effective utilization rate is 80%-90%, the exhaust device exhausts moisture out of the four cylinder drying bin, a guide platestirs and pushes the materials in the drying process, the drying uniformity of the materials is improved, by means of continuous drying, the material drying efficiency is improved, and the material drying effect is optimized.

The invention discloses a thermal tube type vacuum drier capable of utilizing afterheat. The thermal tube type vacuum drier consists of a thermal tube drying cabin capable of utilizing afterheat, an air guide pipe, a bracket, a vacuum unit, a heating device, a driving device, rails and a vacuum charging and discharging device, wherein the rail on the thermal tube drying cabin capable of utilizing afterheat is mounted on the bracket; the driving device is used for driving the rail on an inner cabin; one end of the air guide pipe is connected to the vacuum unit after passing through the vacuum charging and discharging device; the other end of the air guide pipe is connected to the inside of the inner cabin; the inner cabin of the drying cabin adopts three-dimensional heat conduction by a cabin body and a cooling vertical tube, so the heat conduction speed and the heat exchange speed are increased; a cooling tube and a helical blade have a stirring function; no dead corner exists in material drying; the material drying time is shortened, so that the material can be dried uniformly; the material drying efficiency is improved; the material drying effect is optimized; the material can be cooled during a vacuum drying process; heat energy released in cooling of the material is also utilized, so continuous vacuum material drying can be realized.

The invention discloses a heat pipe type vacuum drying box. The heat pipe type vacuum drying box comprises a drying box body, a heating device, a support and a water draining valve. A heat energy inlet, a heat energy outlet, an exhaust opening and a water draining opening are formed in the drying box boxy, the water draining valve is arranged on the water draining opening of the outer face of the drying box, the heating device is fixedly mounted on a box main body of the drying box body through the support, and the heating device comprises a top plate, a bottom plate, side plates, a heating pipe, a fixed strip, and a heat conduction working medium, the heat conduction working medium rapidly transmits the heat to the top plate and the bottom plate of the heating device through the gas and liquid phase change, balance temperature on the four corners and the periphery of the top plate and the bottom plate of the heating device ensures the material water drying uniformity, the upper and the lower of the heating device carry out simultaneous heating, the heat conduction and exchange speed of the heat energy is improved, the material drying speed is improved, and the heat working media cannot generate water scale and oil scale in the heating device, and the heat pipe type vacuum drying box flexibly selects vacuum low-temperature drying or air convection drying.

The invention discloses a heat pipe type heat exchanger. The heat pipe type heat exchanger comprises a heat conduction device, a heating device and a heat pipe. The heat pipe comprises a metal pipe, a flow guide device, a heat conduction working medium and fins; and the flow guide device which is integrally formed by an evaporation flow guide cover, a condensation flow guide cover and a support is arranged inside the metal pipe. The heat conduction area of a pipe body of the metal pipe of an evaporation section of the heat pipe in the heating device increases the heat conduction heat exchange speed of the heat energy; and the heat conduction heat exchange speed of the heat energy is increased by the pipe body of the metal pipe at the evaporation section of the heat pipe. The metal pipe body, decreasing the heat conduction working medium, of a condensation section of the heat pipe in the heating device increases the heat conduction heat exchange of the heat energy on the condensation section, so that the heat energy on the condensation section of the heat pipe is conveniently to carry out heating and heat conduction on the heat conduction medium outside the heat pipe. Through guide flowing of the heat conduction working medium in the heat pipe by the guide flow device, the heat conduction heat exchange efficiency of the heat energy is improved, and the heat conduction heat exchange speed of the heat energy is expanded.

The invention discloses a heat pipe heating type disk dryer. The heat pipe heating type disk dryer includes a drying bin, an air exhaust device, a feeding device, a variable speed motor, a support frame, a small heating plate, a large heating plate, a lower rake rod, a transmission shaft, an upper rake rod, and a support. The material drying process of the heat pipe heating type disc dryer is a vacuum drying process or a convection drying process. A heat-conducting working medium carries thermal energy and performs heat conduction and heat exchange to the material through top plates of the large heating plate and the small heating plate. The material on the top plate of the heating plate of the large heating plate conveniently moves from the top plate which is higher on the outside and lower on the inside in an internal rotation mode from the outside to the inside, and the material on the top plate of the heating plate of the small heating plate conveniently moves from the top plate which is higher in the inside and lower on the outside in an external rotation mode from the inside to the outside; the material is covered on the top plates of the large heating plate and the small heating plate under the guidance and diversion paving of a rake blade device, the upper and lower heating intensities of the material are improved, drying uniformity of the material water content is improved, and the effective heating area of the top plates of the large heating plate and the small heating plate are greater than 90%.