740results about How to "Improve heat transfer efficiency" patented technology

A double-wall pipe includes an outer pipe provided with first and second openings, respectively, at first and second end parts of the outer pipe in a pipe longitudinal direction, and an inner pipe inserted in the outer pipe to define a passage between the outer pipe and the inner pipe. An inlet portion is connected to the outer pipe to communicate with the passage through the first opening, and an outlet portion is connected to the outer pipe to communicate with the passage through the second opening. In the double-wall pipe, the outer pipe and the inner pipe can be disposed to define an expanded portion having an expanded sectional area in the first passage, and the expanded portion can be provided at least at a portion near the inlet portion and the outer portion. The inner pipe can be provided with plural grooves in the double-wall pipe.

The invention discloses a kind of the hydrogenation catalyst outside the equipment pretreating method.The method step as follows: (1) oxidation state hydrogenation catalyst outside gas phase prevulcanization:joins the Oxidation state hydrogenation catalyst in to the curing reactor, passes over the sulfur carburetion into the curing reactor to carry on the curing response; (2)the curing condition catalyst gas phase deactivation processing: joins the cured catalyst prepared in the step (1) to the deactivate reactor, uses the obtuse carburetion which contains the oxygen to deactivate the curing condition catalyst.The invention responses condition is temperate, could not produce flies the warm phenomenon, the curing is even, broke through the traditional catalysis and the curing method, reduces the catalyst carbon deposition quantity, enhances the adding sulfur rate, causes the activeness and the stability of the catalyst be remarkable enhanced, could stablely exist in the air, it is advantageous for the transportation and the preserve, greatly reduces the industry hydrogenation cost.

An air conditioning system for cooling or heating an air, and for feeding the heated or cooled air to predetermined portions is characterized by comprising: a first circulating circuit for circulating a first heating medium; a second circulating circuit for circulating a second heating medium; a control unit for controlling the heat for executing heat exchange between the first heating medium and the second heating medium to flow through either the heat exchanger or the first heat storing device. Moreover, an air temperature is controlled by heat of the second heating medium.

The invention discloses an oxidizing and gasifying hydrogen-making device and method of hypercritical water fluid-bed part of the biological waste, which is characterized by the following: adopting hypercritical water fluid-bed reactor to prevent slagging and blocking problem in the pipe flow reactor; using high-pressure separator to generate high-pressure water to adsorb carbon dioxide in the gas product; realizing the separation of the hydrogen from the carbon dioxide; making the separated high-density carbon dioxide concentrate to be disposed and do resoursing usage conveniently; compacting the device structure; simplifying and conveniencing the operation; improving the gasifying rate of the biological waste with less pollution in the liquid product; realizing the oxidizing and gasifying fusion in the reactor; improving the biological mass transmitting rate and system energy transmitting efficiency; transmitting the biological waste into high-quality hydrogen through the method; reducing the environmental pollution; realizing the dual goals to harness pollution and make hydrogen.

The car air-conditioner refrigerant flow control system adopts the electronic expansion valve as refrigerant flow regulating mechanism. The inlet and outlet of the evaporator are equipped with temp. sensors for respectively measuring the temp. of inlet and outlet of evaporator, and the sum of the difference of both two temp. and correction value of overheating degree of the pressure drop in the evaporator can be used as actual overheating degree of evaporator, and the deviation of the actual overheating degree and set overheating degree can be used as overheating degree feedback signal of theevaporator and fed into the controller, at the same time the rotating speed of the compressor as feedforward signal also can be fed into the controller.

A turbofan to reduce noise through a suppression of turbulent air flow at an outlet thereof and also to guide the air discharged from the outlet in a specific discharging direction, and an air conditioner equipped with the turbofan to improve an efficiency of a heat exchange. The turbofan includes a rotating plate coupled to a shaft of a drive motor, a plurality of blades radially arranged on a peripheral area of a front face of the rotating plate, a ring-shaped shroud joining to ends of the plurality of blades, and a flow guide rib extending from a peripheral edge of the rotating plate in a rearward direction to guide the air discharged from the turbofan.

The invention discloses a water pan assembly, an air conditioner system and a domestic appliance, relates to the field of domestic appliances and aims at increasing the air inlet surface of a unit on which a heat exchanger unit is arranged. The water pan assembly comprises a heat exchanger unit, a water pan body and a drainage plate; the drainage plate can drain condensing water generated by the heat exchanger unit to the water pan body; an air inlet area which is opposite to the direction of gravity is formed below the drainage plate. According to the above technical scheme of the water pan assembly, the drainage plate can collect the condensing water dropped from the heat exchanger unit and can drain the condensing water to the water pan body, air energy enters the unit from the air inlet area which is opposite to the direction of gravity due to the fact that the air inlet area which is opposite to the direction of gravity is formed below the drainage plate, and accordingly the air inlet surface of the unit is increased and the heat exchange efficiency of the heat exchanger unit is improved.

The invention relates to a sodium sulfate wastewater treatment process. The treatment process sequentially comprises the following steps: (1) introducing new sodium sulfate wastewater into a preheating unit, and preheating to raise the temperature; (2) introducing the preheated sodium sulfate wastewater into a single-effect falling film evaporator, and performing heating evaporation concentration to obtain a single-effect concentrate; (3) introducing the single-effect concentrate into a double-effect falling film evaporator, and performing further heating evaporation concentration to obtain a double-effect concentrate; (4) feeding the double-effect concentrate into a forced circulation evaporation crystallizer through a material transfer pump, performing heating evaporation crystallization, and discharging crystal slurry containing sodium sulfate crystals from a salt leg at the bottom of an evaporation chamber of the forced circulation evaporation crystallizer; (5) separating the crystal slurry containing sodium sulfate crystals discharged from the salt leg by a centrifuge; (6) feeding the sodium sulfate crystals separated out by the centrifuge into a fluidized bed drying system through a material conveyor belt, and drying; and (7) introducing the dried sodium sulfate crystals into an automatic packaging system, and packaging to obtain an industrial sodium sulfate finished product. The process is low in energy consumption, and can realize full recovery of sodium sulfate.

The invention provides a heat exchanger, an air conditioner and a machining method for metal foils. The heat exchanger comprises multiple metal foils and refrigerant pipes matching the metal foils. Surfaces of the metal foils are engraved with multiple grooves and multiple stripe-shaped protrusions. Due to the multiple grooves and the multiple stripe-shaped protrusions, the metal foils have hydrophilic properties. The air conditioner is provided with the above heat exchanger. The machining method for metal foils comprises following steps: firstly, adopting a laser to engrave the grooves in surfaces of the metal foils for multiple times till the number of the grooves reach at the pre-set value, secondly, utilizing the laser to engrave the grooves in a deepening mode for multiple times till the depths of the grooves reach the pre-set depth. The heat exchanger, the air conditioner and the machining method for metal foils have following beneficial effects: hydrophilic surfaces of the metal foils have high heat exchange rate and fine durability; a simple process is obtained; and high dimensional accuracy is achieved.

The invention relates to a novel microelectronic device radiator which comprises a planar heat pipe being two or more through hole array flat plate structures arranged side by side and formed by extrusion or punching of metal materials and the equivalent diameters of through holes range from 0.2mm to 6mm. The through holes are filled with liquid working substance and two ends of the planar heat pipe are encapsulated in a sealing manner; an evaporation section of the planar heat pipe is in surface contact with a heating surface of a microelectronic device and a condensation section of the planar heat pipe eliminates heat through a heat elimination component. The novel microelectronic device radiator overcomes the defects of small contact area between the current round heat pipe and the heating surface of the microelectronic device, large equivalent resistance of heat conduction and complex manufacture technology, and has the advantages of high heat elimination efficiency and simple technology.

A capillary structure for a heat transfer device, such as a heat pipe is provided having a plurality of particles joined together by a brazing compound such that fillets of the brazing compound are formed between adjacent ones of the plurality of particles and one or more vapor vents are defined in the capillary structer. In this way, a network of capillary passageways are formed between the particles and vapor-vents through the capillary structure so as to aid in the transfer of working fluid by capillary action, while the plurality of fillets provide enhanced thermal transfer properties between the plurality of particles so as to greatly improve over all heat transfer efficiency of the device. A method of making the capillary structure according to the invention is also presented.

The invention provides a helical fin pipe which comprises a base pipe and fins. The fins comprise main fin bodies and auxiliary fin bodies, the auxiliary fin bodies comprise auxiliary fin body ends and auxiliary fin body roots, the fins are welded to the outer surface of the base pipe in a spiral mode, and the auxiliary fin bodies are fixedly connected with the main fin bodies through the auxiliary fin body roots. The auxiliary fin bodies promoting air to form turbulence are arranged on the fins of the helical fin pipe, so that the heat exchange area is increased while the heat exchange efficiency is improved.

A secondary battery pack includes a battery cell having an electrode assembly, a case housing the electrode assembly, and a first electrode tab and a second electrode tab electrically coupled to the electrode assembly; and a protection circuit module coupled to the battery cell, wherein the protection circuit module includes a printed circuit substrate; and a temperature safety device embedded in the printed circuit substrate.

The invention discloses a fresh air ventilator and a self-cleaning control method and device thereof. The method comprises following steps: when the fresh air ventilator is in the self-cleaning mode, the air returning dry ball temperature and the air returning wet ball temperature of the fresh air ventilator can be detected; according to the air returning dry ball temperature and the air returning wet ball temperature, the air returning exposed point temperature of the fresh air ventilator can be calculated; the temperature of a heat exchanger of the fresh air ventilator can be detected; according to the heat exchanger temperature and the air returning exposed point temperature, the fresh air ventilator is controlled, and condensate water formed on the surface of the heat exchanger of the fresh air ventilator is used for self cleaning. According to the cleaning control method of the fresh air ventilator, the self-cleaning function of the fresh air ventilator is achieved, the heat exchange efficiency of the fresh air ventilator can be improved, electric energy is saved, the fresh air quality can be improved, and the user experience is improved. The invention further discloses a non-temporary computer readable storage medium.

This invention relates to a thermoregulation dehumidifier for air regulating, that is also called a machine double system new type dehumidifier, which has the case, the case has evaporator, air-cooled condenser, compressor, water-cooled condenser, drying filter, expansion valve, hot gas by-passing valve, dash board, the character of which is that the cooling coil is arranged at the front of the evaporator, the cooling coil is in series with the water-cooled condenser, precooking air and decreasing the air dealing range of the refrigeration system; the cold water come into the water-cooled condenser after sucking heat from the cooling coil, the temperature of the cold water is lower, the condense temperature is also low, comparing to the common dehumidifier, the dehumidifying capacity of unit electric energy is higher than the common dehumidifier and can afford with new air dealt differently in room all the year round.

The invention discloses a power battery box device used for a new energy automobile and a control method thereof. The power battery box device comprises a battery box body and an electronic component arranged in the battery box body, wherein the battery box body is provided with a gas inlet used for being communicated with a high pressure gas source, and a gas outlet communicated with the outer side, and the gas inlet and the gas outlet are communicated through the space in the position of the electronic component; the power battery box device used for the new energy automobile also comprises a controller for controlling the working state of the high pressure gas source according to environmental parameters; in the battery box device, the electronic component is cooled or preheated by the existing high pressure gas source on the whole automobile, gas is directly contacted with the surface of the electronic component for heat exchange, secondary heat transfer is carried out without the need of a third part, and the heat exchange efficiency is improved; and the inhouse pressure of the high pressure gas source is utilized to drive the circulation of gas flows in the battery box by the device, so that the device has good gas flow circulation performance, and the heat exchange efficiency of the gas and the electronic component is further improved.

The invention relates to a solar thermal power system. The system, which is integrated with particulate heat absorption, heat storage and direct contact heat exchange, comprises a particulate heat absorption unit, a particulate heat storage unit, a direct contact type superheated steam generation unit and a steam power unit. In the operation process of the system, heat storage particles first absorb solar radiation heat energy in the particulate heat absorption unit to become high-temperature heat storage particles, the high-temperature heat storage particles are stored in the particulate heat absorption unit under atmospheric pressure, the high-temperature heat storage particles drop under gravity into the high-pressure direct contact type superheated steam generation unit to generate high-pressure superheated steam, and the superheated steam is inputted into the steam power unit after passing through a buffer tank and a pressure regulation valve. The solar thermal power system can store heat energy in a large capacity under atmospheric pressure and directly generate high-pressure superheated steam for outputting power to the outside, has the characteristics of simple structure, high stored heat temperature, low cost and the like, and is particularly suitable for the development of high-power, high-efficiency, high-temperature and low-cost new-generation solar thermal power generation systems.

The invention discloses a graphene conduction oil additive and a preparation method thereof. The graphene conduction oil additive is prepared from the components of base solution conduction oil, graphene, a metal passivator, an antirust agent and antioxygen at a certain proportion and according to the processes of mechanical stirring, high speed stirring and ultrasonic dispersion. The graphene conduction oil additive can be directly added into conduction oil, and the defects of traditional conduction oil that gas or low-boiling-point substances such as micromolecular substances are produced by high temperature pyrolysis, and are polymerized to produce substances with higher molecular weight and even high-boiling-point substances such as coke, combustion is easily caused, and the like can be overcome. The graphene conduction oil additive can be used to effectively improve the heat conduction efficiency of the conduction oil, prevent the conduction oil from being partially over-heated during use, delay ageing and coking of the conduction oil, effectively improve conduction oil indexes such as flash point, pour point, kinematic viscosity and initial boiling point, prolong the service life of the conduction oil, and realize energy conservation and consumption reduction.

The invention discloses an inner-tank heating structure of an electric kettle, which comprises a kettle lid and a kettle body, wherein the kettle body is provided with a heating plate assembly, a water solution is filled into the kettle body, and a detachable inner tank is arranged in the kettle body; the inner tank is in a hollow structure forming a cavity for accommodating the food, and the inner tank is nested or inserted in the kettle body; and a positioning groove is protruded from an opening of the kettle body, the opening of the inner tank is provided with a turned edge or a flanged edge matched with the positioning groove, and the inner tank is attached to the groove. The inner-tank heating structure disclosed by the invention has the advantages that through adding the detachable inner tank in the kettle body, the functions of carrying out heating, stewing, heat preservation and the like on the food in the inner tank can be realized through transmitting the heat of the water solution in the kettle body to the inner tank according to the heat conduction property of the inner tank; when the ceramic inner tank is not required to be used, the inner tank can directly be taken out from the kettle body, and then the kettle can realize the function of boiling water through the heating of the heating plate assembly, because the outer wall of the inner tank is surrounded by the water solution and the outer wall of the kettle body, the heat loss can be reduced, and the heat transfer efficiency can be improved; and the inner-tank heating structure disclosed by the invention is simple and reasonable, energy-saving, and environmental-friendly, and is convenient and quick in assembling.

The invention provides an independent primary air system provided with a heat pipe exchanger. The independent primary air system is characterized by comprising a precooling unit, a cooling dehumidification unit, a reheating unit and an air supply unit. The precooling unit, the cooling dehumidification unit, the reheating unit and the air supply unit are sequentially arranged between an inlet and an outlet of the primary air system; the air supply system is arranged on the outlet of the primary air system. Primary air is precooled through an evaporator side of the heat pipe exchanger; the preprocessed primary air is cooled again through the cooling dehumidification unit; the primary air is bent through an air pipe and then heated again through a condenser side of the heat pipe exchanger; the processed air is sent indoors through the air supply unit, and indoor temperature and humidity are controlled to be 26 DEG C +/-0.5 DEG C and 50%+/-1%. The heat pipe exchanger of the independent primary air system achieves heat recovery in the precooling unit and the reheating unit, heat exchange efficiency is high, extra energy loss is avoided, and discharged heat can be recovered to the maximum; indoor air quality is improved; finally an air-conditioning system can save energy by 6%-9%.

The invention discloses an adhesive type ceramic PTC (positive temperature coefficient) heater and a manufacturing method. The ceramic PTC heater comprises a heating body and heat radiators, wherein the heat radiators are adhered on two sides of the heating body via conductive adhesives, and the heating body and an internal aluminum bar as well as the internal aluminum bar and heat radiator fins and an external aluminum bar are directly connected by conductive adhesives. Original brazing welding mode is improved, processing is simpler and higher in efficiency, lead pollution caused by brazing welding is avoided and the adhesive type ceramic PTC heater is more environment-friendly. The adhesive type ceramic PTC heater is used as an auxiliary electric heater on a split indoor unit of an air conditioner, a cabinet air conditioner, a movable air conditioner and an air heater. Due to the fact that channels which are originally air gaps are compactly filled by the conductive adhesives, thermal transmission efficiency is higher and heating effect is obviously improved as compared with that of other common PTC heaters.

The invention provides a ground-source heat-pipe/heat-pump air conditioner which is composed of an underground heat exchanger, an overground heat exchanger, a gas loop, a liquid loop and a control system, wherein the underground heat exchanger is embedded into an underground invariable-temperature stratum, when the air conditioner is running, an operation of heat exchange is performed between theunderground heat exchanger and the underground invariable-temperature stratum so as to realize the air refrigerating or heating function of the air conditioner. The ground-source heat-pipe/heat-pump air conditioner has four running modes, namely, a heat-pump refrigerating mode, a heat-pipe refrigerating mode, a heat-pump heating mode and a heat-pipe heating mode, therefore, the ground-source heat-pipe/heat-pump air conditioner is an ideal energy-saving air conditioning system.

The invention discloses a grooved heat pipe with circumferential grooves and a connection method of the grooved heat pipe. A plurality of axial grooved heat pipe shells with circumferential grooves are combined into a special-shaped grooved heat pipe system through temperature unifying connectors, and in the special-shaped grooved heat pipe system, axial grooves communicate with steam channels. The multiple circumferential grooves which are formed in parallel are formed in the positions of end openings, connected with the temperature unifying connectors, of the axial grooved heat pipe shells,and each circumferential groove is connected with the axial grooves in the axial grooved pipe shells in a through manner. Each temperature unifying connector comprises a main pipe shell and a branchedpipe shell, wherein the main pipe shell and the branched pipe shell are internally provided with axial grooves and circumferential grooves, and the sizes of the axial grooves and the circumferentialgrooves in the main pipe shell and the branched pipe shell are completely consistent with those of the axial grooves and the circumferential grooves of the axial grooved heat pipe shells. The special-shaped grooved heat pipe system in which the axial grooves communicate with the steam channels can take the place of a traditional orthogonal overlapped heat pipe system, overlapping heat resistance between heat pipes is avoided, the heat transfer efficiency and the temperature unifying effect are greatly improved, and the heat pipe arrangement difficulty is lowered.

The invention belongs to a special safety system for a nuclear power plant, specifically relates to a passive waste heat discharging system on a secondary side of a steam generator. The passive waste heat discharging system comprises a direct current steam generator, wherein a passive discharged waste heat exchanger is arranged between a main steam pipeline and a main water feeding pipe of the direct current steam generator, and inlet and outlet pipelines of the passive discharged waste heat exchanger are respectively provided with an inlet isolating valve and an outlet isolating valve, and the outlet isolating valve is frequently closed. The passive waste heat discharging system provided by the invention is arranged on the main steam pipeline and the main water feeding pipeline at the side of the steam generator and fully utilizes the characteristic of high heat exchange efficiency between steam and water phases, and the decay heat of a reactor core is derived under a working condition of power cut of the whole plant; thus, the safety of a reactor is guaranteed, requirements on arrangement space are lowered, pipelines directly connected with a reactor coolant system are reduced, the cracking probability of the pipelines is reduced, and security is improved.

The invention provides an air-conditioner indoor unit and a control method thereof. The air-conditioner indoor unit comprises a machine shell, an air wheel, a heat exchanger, an air guiding assembly and a control device. Specifically, an air return opening is formed in the machine shell; the heat exchanger comprises a plurality of heat exchange areas; the air guiding assembly is located between the heat exchanger and the air return opening so as to adjust the air guiding angle of the air guiding assembly so that the distribution proportion of the blast capacity among the heat exchange areas can be changed; the control device is connected with the air guiding assembly and the heat exchanger and used for detecting the surface temperature of the heat exchanger and adjusting the air guiding angle according to the surface temperature. According to the air-conditioner indoor unit, the air guiding angle of the air guiding assembly can be adjusted according to the surface temperature of the heat exchanger, and the blast capacity proportion of the heat exchange areas on the heat exchanger can be adjusted through convection, so that the temperatures of the heat exchange areas on the heat exchanger are kept in dynamic balance, the whole heat exchange efficiency of the heat exchanger is improved, the energy consumption of the air-conditioner indoor unit is lowered, and the purposes of energy conservation and environmental protection of a product are achieved.

The invention discloses a lamella heat exchanger comprising a lower pipe plate and heat exchange plate bundles which are vertically welded on the lower pipe plate. The heat exchange pipe bundle arranged on the outmost side is provided with a runner inlet and a runner outlet; each heat exchange pipe bundle comprises at least two mutually-overlapped and welded heat exchange plate sheets; transversely and longitudinally-arranged grooves and/or flanges are evenly distributed on the surfaces of the heat exchange plate sheets; and zigzag structures are arranged at the top ends of the heat exchange plate sheets. The invention simultaneously provides lamella evaporative condensing equipment applying the lamella heat exchanger, comprising an upper box body and a lower box body which are mutually connected as well as a water pump and a circulating water pipeline; an air inlet is formed above the upper box body; a spray device is arranged below the air inlet; and the lamella heat exchanger is positioned below the spray device and fixed to the upper box body through bolts. The invention simultaneously discloses a manufacturing method of the lamella heat exchanger. The lamella heat exchanger and the manufacturing method thereof and the lamella evaporative condensing equipment have high heat exchange efficiency, convenient cleaning, simple processing and low cost.

The invention provides a case-type multi-shell-pass countercurrent speedup type shell and tube heat exchanger. The heat exchanger comprises a shell (5), wherein one end of the shell is provided with a tube plate I (3); a tube case (2) is connected outside the tube plate I (3), and a baffle is arranged inside the tube case; the other end of the shell is provided with an end cover (11); a heat exchange tube (6) is arranged in the shell; the shell of the heat exchanger has a round-upside square-downside structure or a square-upside round downside structure; at least one layer of vertical countercurrent speedup guide plate (7) is arranged in the shell; and the inner part of the shell is separated into at least two shell passes to ensure that the number of pass of fluid outside a tube is the same as that of fluid in the tube, and the fluid outside the tube and the fluid in the tube have opposite flowing dictions along the axial direction. The heat exchanger can make the direction of the fluid along the axial direction in the shell pass in the shell and tube heat exchanger opposite to that of the fluid in the tube, make the fluids quickly flow for heat exchange, reduce heat transfer temperature difference of the fluids, improve heat exchange efficiency, and realize synchronous composite utilization of double heat sources. The special shell structure ensures more compactness in heat exchange tube arrangement, can effectively reduce the volume of the heat exchanger, and reduces the filling amount of a refrigerant.

A heat-dissipating device includes a base and a heat pipe. One side of the base is provided with an accommodating trough for accommodating the heat pipe. The heat pipe has a first heat-absorbing section, a second heat-absorbing section, a third heat-absorbing section provided between the first heat-absorbing section and the second heat-absorbing section, a first heat transfer section, and a second heat transfer section. The first, second and third heat-absorbing sections conduct the heat to the first and second heat transfer sections, and thus the heat-dissipating effect of the present invention is improved greatly.

The invention discloses an intermediate billet inclined jet flow cooling and shape control method. The billet with the tapping temperature being 1140-1200 DEG C is descaled by a descaling box and enters a rolling mill for rough rolling; the last three-pass speed loading balance coefficient of rough rolling of a rolled piece is adjusted to enable the strip shape of the intermediate billet with the thickness of 50-250 mm to be flat and straight; after the rough rolling, the intermediate billet enters an inclined jet flow cooling device through a pre-straightener for one-off through type cooling or forward and reverse reciprocating type cooling; gap jet nozzle and high-density jet nozzle typed cooling collectors are continuously opened or opened at intervals by taking 'forward ejection and reverse ejection' or 'forward ejection and forward ejection and reverse ejection' as units; setting of flow rates of a forward upward collector and a reverse upward collector gives consideration to the heat exchanging efficiency of cooling water and the intermediate billet, flow direction of scouring water and residual water, and the cooling strip shape of the intermediate billet. With adoption of the method, the temperature waiting time of the intermediate billet is shortened, the rolling efficiency is improved, and the structure property of variety steel is improved.

The invention discloses a dust collecting and air cooling heat exchanger, relating to a gas purification device, in particular to the dust collecting and air cooling heat exchanger which is used for a biomass fluidized bed and fulfills the functions of dust collection and air cooling heat exchange. The dust collecting and air cooling heat exchanger mainly comprises a cyclone dust collector, wherein the cyclone dust collector consists of a cylinder, a cone, a gas inlet pipe and a gas outlet pipe, the cone is arranged below the cylinder, the lower part of the cone is connected with an ash discharge pipe, the gas inlet pipe is communicated with the upper part of the cylinder along a tangent direction of the cylinder, and the gas outlet pipe is arranged in the cylinder. The dust collecting and air cooling heat exchanger is characterized in that a round pipe with both closed ends is also arranged in the cylinder of the cyclone dust collector and is sleeved on the gas outlet pipe, an interlayer between the inner wall of the round pipe and the outer wall of the gas outlet pipe is a heat exchange chamber, an air inlet is arranged at the upper end of the round pipe, and an air outlet is arranged at the lower end of the round pipe. Compared with the traditional equipment, the invention has six advantages that firstly, the functions of dust collection and air cooling heat exchange are simultaneously realized; secondly, the efficiency of dust collection and air cooling heat exchange is high; thirdly, ashes can be continuously discharged in the work process; fourthly, the structure is simple, and the operation is convenient; fifthly, the occupied area is small; and sixthly, the cost is low.