38results about How to "Extended heating path" patented technology

The invention relates to a novel efficient solar air heat collector device with a permeable trapezoid structure. The solar air heat collector device comprises a shell, an edge pressing section, an inner core and the like, wherein the inner core comprises a cover plate, a plurality of efficient heat-insulating layers, a permeable trapezoid heat absorption plate, a heat absorption heat pipe and a stainless steel support. The heat absorption plate has a permeable trapezoid structure, so that a heat collection area can be increased, and air entering a heat collector is disturbed to promote heat exchange between the air and the heat absorption plate; the trapezoid heat absorption plate divides a heat collection cavity into two closed heating channels along the thickness direction to extend a heating path, and by a heat absorption net structure covering the heat absorption plate, the heat exchange efficiency and the heating efficiency are improved; the heat-insulating layers comprise an aluminum foil plate, asbestos gauze, a heat-insulating plate, asbestos gauze and an outer layer plastic plate sequentially from inside to outside; the asbestos gauze is made of rock wool or mineral wool, and the heat-insulating plate is made of rigid polyurethane; and a layer of electric heating blanket is arranged between the aluminum foil plate and the asbestos gauze and is used for performing electrical heating automatically, so that the solar air heat collector device operates conveniently at night or under the adverse weather condition.

The invention relates to a novel electric heater. The novel electric heater comprises a heater body. The heater body is formed by sequentially connecting a plurality of radiating units distributed parallelly through double-thread connectors. A space for allowing a cast iron heating unit to be installed is formed in the heater body. The cast iron heating unit comprises a pair of cast iron shells arranged in a half-and-half mode, and the two cast iron shells are jointly internally form a U-shaped cavity for allowing a heating element to be put after being combined. A plurality of radiating fins are distributed on the outer ends of the cast iron shells. The cast iron heating unit is fixed to the heater body through a fixing mechanism. The novel electric heater has the advantages that according to the novel electric heater, a covering heating element shell is designed to be the cast iron pieces; by means of the characteristic that radiating of the cast iron pieces is slow, one the one hand, the speed of outward heat transmitting through the cast iron heating unit can be effectively decreased, and the situation that surrounding persons are scalded due to the temperature is raised fast is avoided; on the other hand, after the electricity is turned off, the cast iron pieces can have certain heat preservation effect.

The invention relates to an efficient solar air heat collector device for new type penetration wavy structure, comprising a shell, a blank holding profile and an inner core; the inner core comprises a cover plate, a multi-layer efficient insulation layer, a penetration wavy heat-absorbing plate, a heat-absorbing tube and a stainless steel bracket. The heat-absorbing plate is a penetration wavy structure; on one hand, the heat collecting area can be increased, the air in the heat collector can be disturbed, so as to promote the heat exchange between the air and the heat-absorbing plate; on theother hand, the heat collecting chamber in the thickness direction of the penetration wavy heat-absorbing plate is divided into two sealed heating channels, the heating path is prolonged; simultaneously, a heat-absorbing net structure covered on the heat-absorbing plate can magnify the heat exchange efficiency and improve the heat efficiency. The insulation layer comprises an aluminum foil plate,an asbestos net, an insulation plate, an asbestos net and an outer layer of plastic plate from inside to outside; the material of the asbestos net is rock wool or slag wool; the material of the insulation plate is rigid polyurethane; a layer of electric heating blanket is disposed between the aluminum foil plate and the asbestos net, which is used for electric heating independently, so that the invention can work conveniently at night or under adverse weather condition.

The invention discloses a drying system for drying particulate materials. The drying system comprises a machine body. A drying pipe is installed in the machine body and comprises a snakelike heating pipe and a snakelike casing connected outside the snakelike heating pipe in a sleeving mode. An annular channel is reserved between the snakelike casing and the snakelike heating pipe. The inner wall of the heating pipe is covered with an electric heating thin film. A feed inlet of the snakelike heating pipe is located in the bottom of the machine body. A discharge outlet of the snakelike heating pipe is located in the top of the machine body and communicates with a circulating pump. A discharge outlet of the circulating pump communicates with a feed inlet of the annular channel. The feed inlet of the annular channel is close to the discharge outlet of the snakelike heating pipe. A discharge outlet of the annular channel is located at the feed inlet of the snakelike heating pipe. The pipe wall of the snakelike heating pipe is a heat conduction pipe wall. The annular channel between the snakelike casing and the snakelike heating pipe reheats the materials through heat generated by the snakelike heating pipe, and thus the total energy consumption of reheating of the materials is reduced.

A plate-type heat exchange high-efficiency energy-saving furnace, which includes a water-jacketed furnace body and a water-jacketed outer cylinder of a plate heat exchanger, a water inlet, a water outlet, a flue gas exhaust port and an exhaust port, and a blower. It is characterized by: The feed combustion chamber, combustion chamber, pyrotechnic baffle chamber, flue gas chamber and flue gas outlet in the plate heat exchanger are connected to form a pyrotechnic reciprocating heating path. The plate heat exchanger consists of a water jacket outer cylinder, A number of water jackets arranged in the outer cylinder of the water jacket are connected from the end to the end; the water jacket furnace body is connected to the water jacket outer cylinder of the plate heat exchanger; the water inlet provided on the water jacket furnace body, the water jacket furnace body The water jacket, the pipeline built in the pyrotechnic baffle chamber, the outer cylinder of the water jacket of the plate heat exchanger, several water sleeves and the water outlet are connected in sequence from end to end to form a heat exchange path for water to and fro. It has the advantages of large heating area, complete combustion, sufficient heat exchange, high thermal efficiency, no pollution to the environment, and low cost.

The invention relates to a grain drying equipment used for drying grain, in particular to a countercurrent grain drying equipment. It includes a barn, a drying bin located under the barn, and a recovery bin located under the drying bin. An auger conveyor is arranged in the recovery bin, and the output end of the auger conveyor is connected to the input end of the material lifter , the output end of the material lifter is connected to the feed port at the upper end of the barn, and several inclined deflectors are arranged in the drying bin; the upper end of the drying bin is provided with exhaust holes; the recovery bin is fixedly installed There is an obliquely arranged material guide and ventilation plate, and an air inlet is arranged on the side wall of the recovery bin below the material guide and ventilation plate. When the countercurrent grain drying equipment works, the drying air flow flows from bottom to top, which prolongs the heating path of the grain and reduces the speed of the grain falling. The drying efficiency is high, the drying speed is fast, and the thermal efficiency is high, which is beneficial to reduce energy consumption, Energy saving.