40results about How to "Efficient heat exchange" patented technology

This application relates to a rice husk combustion and recycling drying device, comprising: a combustion furnace and a drying chamber. The combustion furnace includes a biomass buffer chamber and a combustion chamber that are interconnected. An ash chamber connected to the combustion chamber is located inside the combustion furnace. A grate is located above the ash chamber inside the combustion furnace. A heat exchange chamber connected to the combustion chamber is located above the combustion furnace. An igniter is installed on the combustion furnace to ignite the rice husks inside the combustion chamber. A heat exchanger is installed inside the heat exchange chamber. The heat exchanger has a heat exchange channel for heating air. This application, through the coordinated use of the biomass buffer chamber, combustion chamber, ash chamber, heat exchange chamber, and igniter, fully utilizes the rice husks generated during rice processing, burning them as fuel to provide heat energy for the drying process, thus avoiding resource waste caused by the indiscriminate disposal or inefficient use of rice husks.

The utility model relates to a heat dissipation type new energy automobile battery shell, relates to the technical field of battery shells, and aims to solve the problem of poor heat dissipation of a battery shell, the heat dissipation type new energy automobile battery shell comprises a main shell body, the two ends of the main shell body are open, heat dissipation end covers are arranged at the two ends of the main shell body, and any heat dissipation end cover comprises a base and a flow guide outer cover; the base is arranged on the side, close to the main shell, of the flow guide outer cover, the base and the flow guide outer cover are each of a hollow structure and communicate with the interior of the main shell, flow guide through holes are formed in the four side walls of the base in a penetrating mode, and a fan module is arranged in the main shell. And a fan notch for air flow to circulate is formed in the main shell. The battery pack has the effects of effectively absorbing heat generated by the battery and quickly dissipating the heat.

The utility model belongs to the technical field of micro-channel reaction equipment, and particularly discloses a micro-channel reactor which comprises a cooling water pipe, a feeding pipe, a plurality of U-shaped pipes and a discharging pipe, the cooling water pipe is communicated with a plurality of water feeding pipes, each water feeding pipe is communicated with two water feeding branch pipes, the plurality of U-shaped pipes are sequentially communicated in an S shape, and the discharging pipe is communicated with the U-shaped pipes. Each water feeding branch pipe is communicated with the connecting position of the corresponding U-shaped pipe, each U-shaped pipe is composed of a jacketed pipe and an inner pipe, the jacketed pipes are connected to the inner pipes in a sleeved mode, the feeding pipe, the discharging pipe and the U-shaped pipes are all communicated with water return pipes, each water return pipe is provided with a water return thermometer and a water return valve, and the connecting position of each U-shaped pipe is provided with a water feeding thermometer. The micro-channel reactor can effectively improve the reaction uniformity, stabilize the pressure and improve the production safety, the design of the jacketed pipe can effectively reduce heat loss and maintain the heat balance of a reaction system, cooling water enters the multiple branch pipes synchronously, and the stability of the temperature and the pressure of the inner pipe can be maintained.

The utility model discloses a secondary cooling carrier roller device which comprises a supporting frame, a cold roller assembly and a cooling assembly. A hollow roller shaft is sleeved with a sleeve, the inner wall of the sleeve is connected with a V-shaped oil storage pipe through a fixing plate, and the middle of the oil storage pipe is communicated with a connecting ring pipe and an oil conveying pipe. Labyrinth plugging blocks and built-in spring rods are arranged at the two ends of the oil storage pipe, and the top ends of the spring rods are connected with guide slopes with plugging pieces. Bearings and labyrinth plates are arranged on the two sides of the sleeve, heat dissipation bent grooves are formed in the outer side of the hollow roller shaft, and the rotating pipe is connected with the water sump and the water pipe. The device realizes automatic supply of lubricating oil through rotating centrifugal force, and guides the inclined plane to accurately guide the lubricating oil to the bearing; heat exchange is enhanced by winding airflow and the heat dissipation bent grooves, and the cooling efficiency is improved by a water circulation system; and the labyrinth plate obstructs external impurities. The self-adaptive lubricating device has the advantages of self-adaptive lubrication, efficient heat dissipation, reliable sealing and the like, oil consumption can be reduced, the service life is prolonged, and the maintenance frequency is reduced.

The utility model provides a kind of integrated double independent air duct refrigeration system, including box, evaporator, condenser;The evaporator and condenser are respectively installed in the two sides of box, the box on the outside of evaporator is opened outdoor air inlet, outside air enters the air duct where evaporator by outdoor air inlet, air duct is equipped with air supply fan, air supply fan pushes air to flow through evaporator;Air is sent into refrigeration area after heat exchange with evaporator;Another side of box is equipped with corresponding outdoor air inlet close to condenser, indoor air outlet is equipped opposite outdoor air inlet, outdoor air enters the air duct where condenser by outdoor air inlet, air duct is configured and installs exhaust fan, exhaust fan will wind flow flow through condenser, condenser releases heat, exhaust fan will absorb heat after hot air discharge outdoor.This new double independent air duct design avoids hot and cold air mixing, evaporator and condenser can efficiently carry out heat exchange in relatively independent airflow environment.

The present application relates to helium purification device and method, specifically relates to a kind of metal hydride reactor dehydrogenation helium extraction device and method, purpose is to solve the problems of insufficient pressure fluctuation suppression ability, energy utilization efficiency, energy consumption is higher or the problem of insufficient safety that helium purification technology exists.The present application device includes heat exchanger, first reactor and second reactor are filled with metal hydride and are in parallel, and hydrogen storage tank and related monitoring and control components;First reactor, second reactor and heat exchanger are connected with external public heat exchange equipment.The present application method includes alternately using first reactor, second reactor carries out adsorption and desorption work, and according to actual situation, hydrogen storage tank releases hydrogen, and the system is self-pressurized.The present application improves energy utilization efficiency, reduces the energy consumption of device overall, and the pressure fluctuation of entire system is stable.

This invention discloses a heating-not-burning cigarette cooling unit containing a phase change cooling material and a heating-not-burning cigarette. The unit comprises at least a carrier paper and a phase change cooling material coated on the carrier paper. The phase change cooling material is distributed in a non-fully-covering, regular pattern on the carrier paper. The carrier paper coated with the phase change cooling material forms multiple longitudinally extending channels through winding, folding, gathering, bending, and wrinkling, and has a porosity of 40%-90% along the longitudinal direction. The phase change cooling material comprises 55-96 parts by weight of polyethylene glycol, 1-5 parts by weight of in-situ reinforcing material, and 3-40 parts by weight of thermally conductive filler. The heating-not-burning cigarette cooling unit of this invention has the advantages of high latent heat of phase change, low thermal hysteresis effect, high heat absorption efficiency, apparent stability without collapse, and no leakage.

This invention relates to the field of sintering flue gas incinerator technology, specifically a cooling device for a sintering flue gas incinerator. The device includes an incineration assembly, with a flue gas conveying assembly installed at the upper end of the incineration assembly. A circular pipe is fixed inside the incineration assembly, and a diversion cooling mechanism is provided within the circular pipe. A conical filter screen is installed within the diversion cooling mechanism. A conveying pipe passes through the middle of the upper end of the circular pipe, and the upper end of the conveying pipe passes through the flue gas conveying assembly and is equipped with a dust extraction mechanism. A negative pressure pipe is installed on the dust extraction mechanism. This invention enables rapid flow of the liquid exchange medium to facilitate heat exchange with the incinerator, improving heat utilization efficiency. It also controls the flow direction of the flue gas, achieving cooling through heat exchange and spraying during the flow process. Furthermore, it concentrates and removes impurities from the flue gas, preventing blockages that could impede gas flow.

The invention relates to the technical field of refining tanks, in particular to a heat exchange heating device for a rapeseed oil refining tank, which comprises a refining tank main body and a single-layer coil pipe arranged in the refining tank main body, and further comprises a rectangular plate arranged on one side of the refining tank main body, when a heat conduction oil circulating pipe assembly and a cooling water circulating pipe assembly are arranged on one side of the rectangular plate and are in butt joint with the single-layer coil pipe, efficient heat exchange is achieved through the design of the single-layer coil pipe, and in the heating stage, heat conduction oil circularly flows in the single-layer coil pipe to heat grease in the tank; when cooling is needed, the single-layer coil pipe and the cooling water circulation assembly are conducted through the switching conduction piece, cooling water replaces heat conduction oil to flow in the single-layer coil pipe so as to take away heat, the single-pipeline time division multiplexing mode guarantees the effective volume utilization rate of the tank body, and the problem of heat conduction interference possibly occurring in the double-layer and single-layer coil pipe is solved. And integrated control of heating and cooling functions is realized.

The utility model relates to the technical field of compressed air energy storage, in particular to a channel heat exchange device and a compressed air energy storage system. A gas transmission channel is formed in the device body; the two ends of the air conveying channel are connected with air conveying pipelines correspondingly and used for introducing compressed air. A spraying system is arranged at the top of the air conveying channel and used for spraying vaporific liquid drops, and heat exchange is conducted between the vaporific liquid drops and compressed air; a collecting device is arranged at the bottom of the gas conveying channel and used for collecting liquid obtained after heat exchange is completed. Therefore, the problems that the heat exchange efficiency cannot be effectively improved, the energy utilization rate and the overall performance of the compressed air energy storage system are reduced, the use experience of a user is affected and the like due to temperature difference limitation and low heat transfer efficiency between heat exchange media in related technologies are solved.

The utility model relates to evaporator technical field, and disclose a kind of low temperature composite evaporator, including connecting plate, fixed plate, conduction copper pipe, fixed plate both ends thread connecting plate, its front and rear are equipped with multiple conduction pipe, conduction pipe both ends connect connecting plate, on sleeve conduction fin, inner intercalation conduction copper pipe, connecting plate outside thread is equipped with protective shell, conduction copper pipe both ends connect refrigerant inlet, outlet and pass through protective shell, when working, low temperature low pressure liquid refrigerant is entered conduction copper pipe through inlet, absorbs conduction pipe and fin heat and evaporates into gaseous state after from outlet, the conduction fin on conduction pipe increases heat transfer area, strengthens heat exchange, cooled medium flows outside evaporator, realizes cooling by fin and conduction pipe surface, connecting plate and fixed plate thread and bolt connection ensure structure stability, protective shell protection assembly, optimize airflow, the connection of support plate and connecting plate, mounting plate and support plate, make equipment easy to install, disassemble and maintain, can stable high-efficiency refrigeration.

The utility model discloses a kind of injection mould of quick cooling forming, comprising: the base of ejection mechanism is installed in inside;Lower mould, lower mould is placed in the top of the base, the middle part of the lower mould is fixedly connected with mould core, the bottom of the mould core is equipped with multiple circulating water holes;Upper mould, upper mould is placed in the top of the lower mould, the bottom of the upper mould is provided with the cavity of cooperation with mould core;The beneficial effects of the utility model are: through the circulating water hole of mould core bottom and the water delivery hole on cold water plate, a spiral water cooling system of water diversion is formed;Water is introduced into the circulating water hole in the bottom of mould core by cold water pin, so that cooling water can be directly contacted with mould core, efficient heat exchange is realized, so that mould core temperature is quickly reduced, and injection molding efficiency is improved.

The utility model relates to closed cooling tower technical field, concretely relates to a closed cooling tower, including cooling tower body, heat exchange plate and filler, the heat exchange coil pipe is equipped with in the cooling tower body inner chamber, the top surface and the bottom surface of heat exchange coil pipe are spaced apart and are welded with a plurality of heat exchange plates, the filler sets up between each layer water pipe of heat exchange coil pipe, the utility model discloses spaced apart and are welded with a plurality of heat exchange plates on the top surface and the bottom surface of heat exchange coil pipe, utilize heat exchange plate to increase the formation area of water film, namely increased the effective area of evaporative heat dissipation, to the circulating water cooling effect of flowing in heat exchange coil pipe is thus promoted, simultaneously adds the filler between each layer water pipe of heat exchange coil pipe, utilizes the filler to scatter, spreads out, forms extremely thin water film or breaks into a large number of small water drop with big granule water drop or water flow, maximizes the contact area and contact time between water and air, thereby efficiently carries out heat exchange.

The utility model discloses a kind of lithium battery top cover piece injection molding processing mould, comprising: bottom die seat and top die seat, the inside of top die seat is equipped with clamping groove, the top of top die seat is equipped with lifting seat;Lifting assembly, including driving part and locating block, the locating block output end is connected with the locating block, locking plate is set between the locating block and the lifting seat;Forming base is set to the top of bottom die seat, the bottom of forming base is evenly equipped with ejector, the inside of forming base is equipped with forming groove and the inside of forming groove is evenly penetrated and is equipped with communicating hole channel;Forming top seat.The utility model can improve the yield of product and the degree of unification of multiple groups of product forming production, can press out different modeling or sign on the surface of battery top cover piece, no longer need additional processing procedure, also can carry out simple and fast height adjustment, convenient to discharge discharge, also convenient to adjust processing according to different product parameters.

This utility model discloses an immersion-type liquid cooling pipeline for a battery pack. An inlet connector is fixedly installed on the battery pack. One end of the inlet connector is connected to one end of an inlet hose via a first adapter on the inner side of the battery pack, and the other end of the inlet hose is connected to the main inlet pipeline via a second adapter. The first, second, third, and fourth inlet pipes are arranged in parallel, and their inlets are connected one-to-one with multiple outlets on the main inlet pipeline. Multiple spray nozzles are evenly arranged on the first, second, third, and fourth inlet pipes. The outlet connector is fixedly installed on the battery pack. This system enables highly efficient heat dissipation. When the cell temperature rises, this pipeline can completely immerse the cell in the coolant, achieving highly efficient heat exchange, with a heat dissipation efficiency far exceeding that of traditional cold plate cooling systems.

The utility model is applied to the technical field of cooling towers, and discloses a filler-free cooling tower which comprises a tower body, an exhaust port is fixedly arranged at the upper end of the tower body, an air inlet pipe and a first communicating groove are arranged in the side surface of the lower end of the tower body, and an air inlet nozzle is fixedly arranged on the bottom surface in the tower body. A cooling mechanism is arranged in the tower body, the overall cooling efficiency is improved by atomizing and spraying cooling water, the cooling mechanism comprises a receiving tower, and an atomizing nozzle is fixedly arranged on the inner side surface of the upper end of the receiving tower. According to the packing-free cooling tower, the packing-free design is adopted, the tower body, the gas inlet spray head, the atomizing spray head, the gas-liquid separator and other structures are matched with one another, the problems of packing aging and blockage are fundamentally solved, shutdown for cleaning or packing replacement is not needed, the labor and material cost is reduced, the maintenance cost is greatly reduced, and the production continuity is ensured.

A heat dissipation device for a wind power tower relates to the technical field of wind power generation and comprises an air cooling heat exchange device, a heat exchanger, a rotary transition device and a fan. The air-cooled heat exchange device is located at the top of the wind turbine generator, conducts heat exchange through natural wind and comprises a mounting frame, a water outlet pipe, a water return pipe, an S-shaped heat exchange pipe, cooling fins and the like, a heat insulation plate is arranged at the top of the mounting frame, and a protective net is arranged around the mounting frame. The heat exchanger is arranged in the tower drum base and is communicated with the air-cooled heat exchange device through a pipeline, and a circulating pump is arranged on the pipeline; the rotary transition device enables the pipeline to rotate relatively and comprises a fixing base, a ring sleeve, a water outlet connector and other components. The fan carries out air-cooling heat dissipation on the electrical equipment in the base; the ventilation hole in the tower drum access door is matched with an exhaust fan to exhaust air; the structure is simple, natural wind resources at the top are utilized, no extra cooling fan is needed, and the running cost of a cooling system is reduced; and the problem of pipeline connection between the heat exchanger and the air-cooled heat exchange device when the wind turbine generator rotates is solved.

The utility model discloses a liquid cooling plate based on an ultralow-conductivity material, and relates to the technical field of liquid cooling plates. Comprising a plate body and further comprises a liquid cooling assembly, the outer wall of the liquid cooling assembly is fixedly connected with the inner wall of the plate body, and the inner wall of the plate body is fixedly connected with a heat dissipation assembly; the liquid cooling assembly comprises a spiral pipe, the liquid cooling plate forms a double protection system of physical insulation and material insulation through the arrangement of the plate body made of ultralow conductivity materials and the thermal insulation sleeve, a conductive path between cooling liquid and electronic equipment is blocked, the risk of short circuit caused by electric leakage is avoided, heat loss is reduced through the arrangement of the thermal insulation sleeve, and the service life of the electronic equipment is prolonged. According to the liquid cooling plate, performance reduction caused by temperature rise of surrounding parts is prevented, stable operation of equipment in severe environments such as high pressure and humidity is ensured, the contact area of cooling liquid and the plate body is increased through matrix type arrangement of the spiral pipes and the fluid self-driving design that the rotating ring drives the blades, and the purpose of the liquid cooling plate based on ultralow conductivity materials is achieved.

This invention relates to the design and fabrication method of a stretchable and shapeable thermoelectric device based on high-performance thin-film materials. First, a regular "paper-cut structure" array pattern is cut into a substrate thin-film material. Then, high-performance p-type and n-type thermoelectric materials are deposited sequentially on the substrate. Finally, electrode materials are deposited to connect the p-type and n-type thermoelectric materials in series. The thin-film thermoelectric device based on the paper-cut structure of this invention can transform from a two-dimensional planar structure to a three-dimensional structure under external force, changing the heat conduction within the device from a planar direction to a vertical direction, maximizing the utilization of the temperature difference between the heat source and the environment, and improving the device's power generation performance. Due to the three-dimensional network structure of the device itself, the cold end of the device can effectively exchange heat with the environment without the need for an additional heat dissipation module. The device structure of this invention is ingeniously designed, with strong compatibility in the fabrication process, and has significant application prospects in the field of wearable self-powered devices.

The utility model relates to the technical field of vacuum heat treatment equipment, and discloses a double-temperature-zone dynamic heat insulation device in a vacuum chamber, which comprises a vacuum chamber shell, the top of the vacuum chamber shell is fixedly connected with a fixed plate, the inner side of the fixed plate is fixedly connected with an upper chamber shell, the outer side of the vacuum chamber shell and the outer side of the upper chamber shell are provided with a circulating assembly, and the circulating assembly is connected with the vacuum chamber shell. A plurality of connecting plates are fixedly connected to the side face of the fixing plate, driving assemblies are arranged on the side faces of the connecting plates, two circular plate cooling assemblies are arranged in the vacuum cavity shell, and a plurality of rotating shafts are rotationally connected to the inner side of the fixing plate. The rotating power source drives the rotating shaft to rotate, so that dynamic stirring of the rectangular water cooling plate in the vacuum chamber is achieved, static heat distribution is broken, cooling liquid is driven to circulate through the water outlet flow channel and the water inlet flow channel in the rotating shaft, efficient heat exchange in the rotating state is achieved, and the turbulence effect is enhanced through centrifugal force.

The utility model relates to the technical field of integrated cabinet air conditioner, and this air conditioner comprises: cabinet, the cabinet has the cabinet cavity, first partition board group, install in the cabinet cavity inside, first partition board group and cabinet enclose and go out the condensation area of upper portion, condenser, install on first partition board group, the cabinet is on and is corresponded condensation area is provided with the first air inlet and first air outlet with the cabinet cavity intercommunication, and the first air inlet is located in the circumferential side of condensation area, and the first air outlet is located in the top side of condensation area. The air duct structure for the air flow flowing in the cabinet cavity is optimized, the condensation area is formed in the upper portion of the cabinet cavity, the evaporation area is formed in the rest of the cabinet cavity, the two areas are relatively independent, avoid mutual interference, and the air duct design is optimized, and the refrigeration cycle efficiency of air conditioning system is improved significantly.

The utility model relates to a modular assembly type heat exchange device which comprises a base frame, the base frame comprises a fixed plate and a movable plate moving in the length direction of the base frame, the movable plate is fixedly arranged on one side of the fixed plate in parallel through a fastener, a plurality of modules are arranged between the movable plate and the fixed plate side by side, and hot fluid flows in from a flowing hole in the upper portion of the left side. Cold fluid is injected into the liquid inlet end of the snakelike groove through the guide groove of one heat exchange plate of the module, and the cold fluid enters from the flowing hole in the lower portion of the right side and forms a flowing path opposite to the cold fluid through the other heat exchange plate of the module. Cold fluid and hot fluid completely reversely flow in the module, the hot fluid flows in the snakelike groove in a winding path, efficient heat exchange is achieved, the residence time of the fluid in the module is prolonged, and it is ensured that sufficient heat energy exchange can still be completed under the high-flow-speed working condition.

This utility model relates to the technical field of heat recovery devices, and discloses an energy-saving evaporator with built-in heat recovery device, including an evaporator. A connecting pipe is fixedly connected to the left end of the evaporator, and a protective shell is fixedly connected to the lower end of the evaporator. A rotating frame is rotatably connected to the inner wall of the protective shell, and a fixing block is fixedly connected to the upper end of the rotating frame. A threaded rod is threadedly connected to the inner wall of the fixing block, and an installation assembly is provided on the inner wall of the protective shell. The installation assembly includes a support frame, a limit baffle is fixedly connected to the surface of the support frame, and a limit shaft is fixedly connected to the upper end of the support frame. This utility model uses a support frame to drive the plate heat exchanger for modular disassembly and assembly, and a limit slider and other parts to provide limiting for the device. This design allows for the maintenance or replacement of the plate heat exchanger without disassembling the entire device when maintenance is required, significantly reducing maintenance costs and time, and improving the overall practicality of the device.

The utility model relates to the technical field of gear boxes, in particular to a wind generating set gear box cooling device which comprises a gear box body which is independently and fixedly arranged and provided with an oil inlet and an oil outlet. The mounting mechanism is mounted on the gearbox body; the oil guide tank is mounted on the mounting mechanism, and oil passing pipes are mounted at a plurality of through holes formed in the oil guide tank at equal angles respectively; a plurality of inner holes are formed in the oil transfer box at equal angles, the inner holes of the oil transfer box and the oil passing pipes are installed in a one-to-one correspondence mode, and an oil return pipe is arranged on the oil transfer box and communicates with the oil inlet of the gearbox body; the heat exchange pipe is installed on the oil transfer tank, the heat exchange pipe is of an M-shaped structure, and a straight pipe section of the M-shaped structure sequentially penetrates through inner cavities of the multiple oil passing pipes; the switching mechanism is respectively communicated with the oil guide tank and the oil outlet of the gear box body; and the heat dissipation efficiency is high.

The utility model relates to a domestic sewage heat energy recovery device. Comprising a maintenance installation frame, a first heat exchange assembly and a second heat exchange assembly which are communicated with each other are installed on the maintenance installation frame, a medium input pipe is connected to the first heat exchange assembly, and an after-filtration conveying pipe and a water pump are connected between the filtering assembly and the first heat exchange assembly in a communicated mode; the filtering assembly comprises a filtering barrel, and a filtering barrel cover is mounted at the top of the filtering barrel; a filter barrel water inlet and a filter barrel water outlet are formed in the filter barrel, and a partition plate structure is arranged in an inner cavity of the filter barrel and divides the inner cavity of the filter barrel into a sewage cavity and a purified water cavity; the sewage cavity is communicated with the water inlet of the filter barrel, the clean water cavity is communicated with the water outlet of the filter barrel, and a blow-off pipe and a blow-off port are arranged at the bottom of the filter barrel; a through groove is formed in the bottom of the partition plate structure, a filter screen cylinder installed in the water purification cavity is arranged, the cleaning brush mechanism is arranged in the filter screen cylinder, and the cleaning motor is further included. According to the utility model, primary heat exchange and secondary heat exchange can be carried out on sewage, so that efficient heat recovery operation is realized; sewage can be filtered before heat exchange operation, and a filter part can be automatically cleaned at regular intervals.

The invention relates to the technical field of heat pump systems, in particular to a whole vehicle heat management method based on an injection type air supply enthalpy increasing heat pump. A traditional air-supplementing enthalpy-increasing heat pump system is complex in structure and cannot carry out effective and controllable heat exchange with various vehicle-mounted functional parts in a whole vehicle heat management system. In order to solve the problem, the invention provides the whole vehicle thermal management method based on the injection type air supply and enthalpy increase heat pump, and a stable air supply and enthalpy increase loop is constructed in a heat pump system. And the medium-pressure gaseous refrigerant in the gas-liquid separator continuously performs enthalpy increasing and gas supplementing on the compressor. Meanwhile, a heat pump system is deeply coupled with a whole vehicle heat management system, the temperature states of vehicle-mounted functional components such as an electric drive module, a battery module and a cabin module can be collected in real time through a central integration module formed by a heat management controller and a temperature sensor, and heat is dynamically distributed according to actual requirements.

The utility model discloses a waste heat recycling device for a pressure vessel, which relates to the technical field of recycling devices and comprises a mounting frame body, and a waste heat recycling boiler barrel, a lower heat exchange device and an upper heat exchange device are respectively mounted on the mounting frame body. The upper end of the waste heat recycling boiler barrel is connected with the lower heat exchange device; the upper end of the lower heat exchange device is connected with the upper heat exchange device; due to the arrangement of the waste heat gas inlet I and the waste heat transmission pipe, waste heat waste gas flows in orderly, and heat loss caused by airflow turbulence is avoided; the water conveying pipe is connected with the inner container, warm water heated by the lower heat exchange device is introduced, waste heat in the boiler barrel body is utilized for secondary heating, waste heat resources are fully utilized through the secondary heating design, compared with single-time heating, the temperature of hot water can be increased by 15-20 DEG C, the use value of the hot water is remarkably increased, and the energy utilization rate is further increased.