A waste gas waste heat recovery and cleaning device and use method

Abstract

The present invention discloses an exhaust gas waste heat recovery and cleaning device, which relates to the technical field of pollutant treatment. In the present application, the exhaust gas waste heat recovery and cleaning device comprises: a box body is arranged on a plane; a collecting device is arranged in the box body, and the collecting device comprises: a second heat exchange device is arranged in the box body; the second heat exchange device is provided with a hollow tube, and a plurality of hollow tubes are provided and a uniform gap is left between the plurality of hollow tubes, and the plurality of hollow tubes are connected on the same plane through a fixing plate; two fixing plates are provided, and the two fixing plates are symmetrically arranged and there is a gap between the fixing plates; a pipeline cleaning device is arranged inside the box body, and the management and cleaning device comprises: a cleaning nozzle is arranged inside the box body, and the cleaning nozzle is in the same direction as the hollow tube of the second heat exchange device. The present invention recovers the heat energy of the high-temperature exhaust gas generated by the setting machine through the second heat exchange device, and cleans the second heat exchange device through the pipeline cleaning device to prevent dirt from adhering to affect the heat exchange performance.

Description

Technical Field

[0001] The present invention relates to the technical field of pollutant treatment, and in particular to an exhaust gas waste heat recovery and cleaning device and a use method thereof. Background Art

[0002] The production process of the printing and dyeing industry is complex. In order to improve the appearance, surface characteristics and dyeing quality of the products, a variety of textile auxiliaries and solvents need to be added. After dyeing and rinsing, textiles need to go through a heat setting process. Taking advantage of the thermoplastic characteristics of textiles, they are dried, stretched and heat treated in a setting machine to achieve the purpose of setting.

[0003] The temperature of the dry hot air in the setting machine is usually controlled in the range of 160-220℃. During the setting process, the moisture carried by the fabric is volatilized together with organic compounds such as solvents, grease and wax due to heat, and is discharged from the exhaust pipe along with the waste hot air to become the exhaust gas of the setting machine.

[0004] The exhaust gas from the setting machine contains water vapor, volatiles and condensates of printing and dyeing auxiliaries and solvents, as well as fibers and dust carried by the fabrics. It is a mixed fluid containing three-state pollutants: gas, liquid and solid.

[0005] During the transportation and discharge process of the exhaust gas from the setting machine, the temperature drops, causing the condensation and adhesion of oil fume particles. After cooling, the water vapor and oil gas become water mist and oil mist, which, together with the solid particles such as fabric fibers carried in the exhaust gas, are deposited on the inner walls of the equipment and pipelines as sticky oil stains.

[0006] The oil mist in the high-temperature exhaust gas and the oil stains deposited in the pipes are both flammable and explosive. The fabric fibers in the exhaust gas can easily cause the pipes or filters to become clogged over time, resulting in increased flow resistance in the pipe equipment. The fabric fibers rub against each other in a disturbed airflow state to generate static electricity, which can easily lead to fire accidents. Therefore, the pipes need to be cleaned regularly. Summary of the invention

[0007] One of the purposes of the present invention is to provide an exhaust gas waste heat recovery and cleaning device to solve the problem that the exhaust gas generated by the molding machine in the prior art is directly discharged, the large amount of heat carried by the exhaust gas cannot be effectively utilized, resulting in a waste of resources and the inability to effectively and quickly clean the internal dirt.

[0008] A second object of the present invention is to provide an exhaust gas waste heat recovery and cleaning system.

[0009] To achieve one of the above purposes, the embodiment of the present application adopts the following technical solution: an exhaust gas waste heat recovery and cleaning device, comprising: a box body, the box body is arranged on a plane, and the interior of the box body is hollow; a collecting device, the collecting device is arranged in the box body, the collecting device is fixedly connected to the box body, and a accommodating space is arranged inside the collecting device, and the accommodating space is used for centralized treatment of high-temperature exhaust gas, the collecting device comprises: a second heat exchange device, the second heat exchange device is arranged in the box body, the second heat exchange device is fixedly connected to the box body, the interior of the second heat exchange device is arranged to be hollow, and there is a gap between the second heat exchange device and the inner wall of the box body; the second heat exchange device A hollow tube is provided in the box body, and multiple hollow tubes are provided with uniform gaps between the multiple hollow tubes, and the multiple hollow tubes are connected on the same plane through a fixing plate; two fixing plates are provided, and the two fixing plates are symmetrically arranged and there is a gap between the fixing plates; a pipeline cleaning device is provided inside the box body, and the pipeline cleaning device is detachably connected to the inner wall of the box body. The management and cleaning device includes: a cleaning nozzle, which is provided inside the box body, and the cleaning nozzle is in the same direction as the hollow tube of the second heat exchange device, and one end of the cleaning nozzle extends into the hollow tube of the second heat exchange device, and multiple cleaning nozzles are provided.

[0010] Furthermore, in an embodiment of the present invention, an aluminum fin is disposed around the outer circumference of the hollow tube, and the aluminum fin is fixedly connected to the outer circumferential wall of the hollow tube. The aluminum fin surrounds the hollow tube along the length of the hollow tube.

[0011] Furthermore, in an embodiment of the present invention, a gap is provided between the aluminum fins, and both ends of the aluminum fins are respectively connected to the fixing plate.

[0012] Furthermore, in an embodiment of the present invention, the hollow tube is disposed between the two fixing plates, and the hollow tube is vertically disposed between the two fixing plates.

[0013] Furthermore, in an embodiment of the present invention, the fixing plate is in close contact with the inner wall surface of the box.

[0014] Furthermore, in the embodiment of the present invention, the hollow tube is made of any one of copper, stainless steel, and iron.

[0015] Furthermore, in an embodiment of the present invention, the exhaust gas waste heat recovery and cleaning device also includes: a water inlet main pipe, which is arranged on the outside of the box body, the water inlet main pipe is connected to the box body, the inside of the water inlet main pipe is hollow, and one end of the water inlet main pipe penetrates into the box body; a water inlet joint, which is arranged on the outside of the box body, the water inlet joint is connected to the water inlet main pipe, the inside of the water inlet joint is hollow, the water inlet joint is connected in series with the water inlet main pipe, and the water inlet joint is detachably connected to the water inlet main pipe.

[0016] Furthermore, in an embodiment of the present invention, there are three water inlet main pipes arranged on the outside of the box body, and one end of the three water inlet main pipes are respectively inserted into the box body and connected to the pipe cleaning device. The water inlet main pipe controls the internal flow through the water inlet joint, and the water inlet joint is adapted to the number of the water inlet main pipes.

[0017] Furthermore, in an embodiment of the present invention, the second heat exchange device is provided with three cleaning nozzles respectively fixed inside the box body, the cleaning nozzle in the hollow tube does not contact the inner wall of the hollow tube, and the part of the cleaning nozzle extending into the second heat exchange device accounts for one quarter of the total length of the cleaning nozzle.

[0018] Furthermore, in an embodiment of the present invention, uniform gaps are left between the multiple hollow circular tubes of the second heat exchange device.

[0019] Furthermore, in an embodiment of the present invention, both ends of the multiple hollow circular tubes of the second heat exchange device are set to open, and the outer periphery of the second heat exchange device is provided with aluminum fins, which are fixedly connected to the hollow circular tubes of the second heat exchange device, and the aluminum fins are provided in plurality.

[0020] Furthermore, in an embodiment of the present invention, a plurality of pipeline cleaning devices are provided.

[0021] Furthermore, in an embodiment of the present invention, the pipeline cleaning device includes: a water tank, which is arranged inside the box body, the interior of the water tank is hollow for storing liquid, the water tank is arranged directly above the second heat exchange device, the number of the water tank and the second heat exchange device is adapted, and the water tank includes: a water tank upper panel, the water tank upper panel is arranged above the water tank; a water tank bottom plate, the water tank bottom plate is arranged below the water tank, the water tank upper panel and the water tank bottom plate are symmetrically arranged, and a distance is maintained between the water tank upper panel and the water tank bottom plate; a reinforcing cross plate, the reinforcing cross plate is arranged between the water tank upper panel and the water tank bottom plate, and the corresponding two sides of the reinforcing cross plate are respectively fixed The reinforced side panels are fixed on the lower surface of the upper panel of the water tank and the upper surface of the bottom plate of the water tank, and the reinforced cross panels are provided with two pieces symmetrically arranged between the upper panel of the water tank and the bottom plate of the water tank; the reinforced side panels are arranged between the upper panel of the water tank and the bottom plate of the water tank, and the corresponding two sides of the reinforced side panels are respectively fixed on the lower surface of the upper panel of the water tank and the upper surface of the bottom plate of the water tank, and the reinforced side panels are provided with two pieces symmetrically arranged between the upper panel of the water tank and the bottom plate of the water tank; one end of the reinforced side panel is connected to one end of the reinforced cross panel to form a closed loop, and the upper panel of the water tank, the bottom plate of the water tank, the reinforced cross panel and the reinforced side panels form a closed containing body.

[0022] Furthermore, in an embodiment of the present invention, a reinforcing lug is provided between the upper panel of the water tank and the bottom plate of the water tank. The reinforcing lug is provided on the periphery of the closed loop formed by the reinforced cross plate and the reinforced side plate. There are four reinforcing lugs, which are respectively provided around the closed containing body.

[0023] Furthermore, in an embodiment of the present invention, a reinforcing bottom plate is provided on the lower surface of the water tank bottom plate, the reinforcing bottom plate is fixedly connected to the water tank bottom plate, the reinforcing bottom plate is connected to the upper surface of the second heat exchange device, and a distance is maintained between the water tank and the second heat exchange device.

[0024] Furthermore, in an embodiment of the present invention, a reinforcing rib is provided between the water tank upper panel and the water tank bottom plate, and the reinforcing rib is provided in a closed loop formed by the reinforcing transverse plate and the reinforcing side plate.

[0025] Furthermore, in an embodiment of the present invention, the number of the cleaning nozzles is the same as the number of the hollow circular tubes.

[0026] Furthermore, in an embodiment of the present invention, the water inlet main pipe above the water tank is fixedly connected to the water tank.

[0027] Further, in an embodiment of the present invention, the cleaning nozzle is provided with a nozzle hole, the nozzle hole extends into the hollow circular tube of the second heat exchange device, and the nozzle hole is configured as a through hole.

[0028] To achieve the second of the above purposes, the embodiment of the present application adopts the following technical solution: an exhaust gas waste heat recovery and cleaning system, comprising: an exhaust gas waste heat recovery and cleaning device having one of the above purposes.

[0029] Furthermore, in an embodiment of the present invention, the exhaust gas waste heat recovery and cleaning system also includes: a first heat exchange device, which is arranged in the box body, the first heat exchange device is fixedly connected to the box body, the interior of the first heat exchange device is arranged to be hollow, and there is a gap between the first heat exchange device and the inner wall of the box body; the first heat exchange device is provided with a hollow tube, and a plurality of the hollow tubes are provided and uniform gaps are left between the plurality of the hollow tubes, and the plurality of the hollow tubes are connected on the same plane through a fixing plate; two fixing plates are provided, the two fixing plates are symmetrically arranged and there is a gap between the fixing plates.

[0030] Furthermore, in an embodiment of the present invention, a superconducting sheet is arranged around the outer circumference of the hollow tube, the superconducting sheet is fixedly connected to the outer circumferential wall of the hollow tube, the superconducting sheet surrounds along the length of the hollow tube, and the surrounding distance of the superconducting sheet is less than the total length of the hollow tube.

[0031] Furthermore, in an embodiment of the present invention, gaps are provided between the superconducting sheets, and two ends of the superconducting sheets are respectively connected to the fixing plates.

[0032] Further, in an embodiment of the present invention, the fixing plate divides the hollow tube into an upper part and a lower part, the upper part is configured as the hollow tube having the superconducting sheet, and the lower part is configured as the hollow tube itself.

[0033] Furthermore, in an embodiment of the present invention, the interior of the fixing plate passes through the hollow tube, and the connection between the hollow tube and the fixing plate is sealed.

[0034] Furthermore, in an embodiment of the present invention, the fixing plate is in contact with the inner wall surface of the box.

[0035] Furthermore, in an embodiment of the present invention, the superconducting sheet and the hollow tube are made of superconducting alloy material.

[0036] Furthermore, in an embodiment of the present invention, two groups of the first heat exchange device are provided, and a gap is left between the two groups of the first heat exchange device, and the gap is used to place the second heat exchange device.

[0037] The embodiment of the present invention also discloses a method for using the exhaust gas waste heat recovery system, comprising the following steps:

[0038] Transfer materials and put the textile filling cloth into the setting machine for drying and stentering;

[0039] The collecting device is started to discharge the high-temperature exhaust gas generated by the textile into the collecting device for heat conversion, and the heat conversion absorbs the heat carried by the high-temperature exhaust gas through the first heat exchange device and the second heat exchange device;

[0040] Start the spray device, which makes the cleaning nozzles at 200-300mm on the inner surface of the copper tube of the third group of second heat exchange devices spray water columns, which come into contact with the high-temperature flue gas to generate water vapor for heat exchange. The inner walls of the copper tubes of the three groups of second heat exchange devices are all sprayed with automatic spray devices, and the inner walls of the copper tubes are sprayed with hot alkaline water, and the washed oil stains are returned to the alkaline water tank;

[0041] Start the purification equipment and pass the waste gas after heat conversion into the purification equipment for air treatment.

[0042] Furthermore, an embodiment of the present invention also discloses that: the heat conversion first absorbs the heat carried by the high-temperature exhaust gas through the first group of first heat exchange devices, and then the high-temperature exhaust gas flows into the inner tube wall of the first group of second heat exchange devices for secondary heat absorption. After the high-temperature exhaust gas flows out through the first group of second heat exchange devices, it enters the inner tube wall of the second group of second heat exchange devices for the third heat absorption. Then, the high-temperature exhaust gas flows out from the second group of second heat exchange devices and flows to the second group of first heat exchange devices for the fourth heat absorption. Then, the high-temperature exhaust gas flows into the inner tube wall of the third group of second heat exchange devices for the fifth heat absorption. Finally, the high-temperature exhaust gas that completes the heat conversion flows into the purification equipment.

[0043] The beneficial effects of the present invention are as follows: first, the waste heat recovery and cleaning system of the present invention utilizes the second heat exchange device to convert the heat of the high-temperature waste gas, and at the same time, the inner wall surface of the second heat exchange device is cleaned by the pipeline cleaning device, thereby reducing the waste gas dirt adhering to the inner wall surface of the second heat exchange device after long-term use, which affects the waste gas heat exchange performance. The inner wall surface of the second heat exchange device is cleaned regularly using the pipeline cleaning device, and it does not need to be disassembled, thereby reducing the damage to the device caused by disassembly, and it can be quickly put back into use. BRIEF DESCRIPTION OF THE DRAWINGS

[0044] The present application is further described below in conjunction with the accompanying drawings and embodiments.

[0045] Figure 1 It is a front view of the exhaust gas waste heat recovery and cleaning device according to an embodiment of the present invention.

[0046] Figure 2 It is a schematic diagram of the internal structure of the exhaust gas waste heat recovery and cleaning device according to an embodiment of the present invention.

[0047] Figure 3 It is a schematic diagram of the use of a pipeline cleaning device and a second heat exchange device of an exhaust gas waste heat recovery and cleaning device according to an embodiment of the present invention.

[0048] Figure 4 It is a schematic diagram of the structure of a pipeline cleaning device of an exhaust gas waste heat recovery and cleaning device according to an embodiment of the present invention.

[0049] Figure 5 It is a schematic diagram of the cleaning nozzle structure of the pipeline cleaning device of the exhaust gas waste heat recovery cleaning device according to an embodiment of the present invention.

[0050] Figure 6 It is a front view of the pipeline cleaning device of the exhaust gas waste heat recovery and cleaning device according to an embodiment of the present invention.

[0051] Figure 7 It is a schematic diagram of the first heat exchange device of the exhaust gas waste heat recovery and cleaning device according to an embodiment of the present invention.

[0052] Figure 8 It is a flow diagram of exhaust gas and make-up air in the exhaust gas waste heat recovery and cleaning device according to an embodiment of the present invention, wherein the black arrows represent the make-up air and the white arrows represent the exhaust gas.

[0053] In the attached figure

[0054] 10. Explosion-proof device 20. Adjustment device 30. Pipe cleaning device

[0055] 301, cleaning nozzle 302, water tank upper panel 303, water tank bottom plate

[0056] 304, reinforced bottom plate 305, reinforced lifting lug 306, reinforced rib

[0057] 307, reinforced horizontal plate 308, reinforced side plate 309, nozzle hole

[0058] 40, first heat exchange device 50, second heat exchange device 501, aluminum fin

[0059] 60, partition board 70, baffle board 80, water inlet joint

[0060] 90, water inlet main 100, blower 110, pump station DETAILED DESCRIPTION

[0061] In order to make the purpose and technical solution of the present invention clearly and completely described, and the advantages more clearly understood, the embodiments of the present invention are further described in detail with reference to the accompanying drawings. It should be understood that the specific embodiments described herein are part of the embodiments of the present invention, rather than all of the embodiments, and are only used to explain the embodiments of the present invention, and are not used to limit the embodiments of the present invention. All other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0062] In the description of the present invention, it should be noted that the terms "center", "middle", "upper", "lower", "left", "right", "inner", "outer", "top", "bottom", "side", "vertical", "horizontal" and the like indicate positions or positional relationships based on the positions or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operate in a specific orientation, and therefore cannot be understood as limiting the present invention. In addition, the terms "one", "first", "second", "third", "fourth", "fifth", "sixth" are used for descriptive purposes only, and cannot be understood as indicating or implying relative importance.

[0063] In the description of the present invention, it should be noted that, unless otherwise clearly specified and limited, the terms "installed", "connected", and "connected" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or it can be indirectly connected through an intermediate medium, or it can be the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0064] For the purpose of simplicity and illustration, the principles of the embodiments are mainly described by reference to examples. In the following description, many specific details are proposed to provide a thorough understanding of the embodiments. However, it is obvious that for those of ordinary skill in the art, these embodiments may not be limited to these specific details in practice. In some instances, known methods and structures are not described in detail to avoid making these embodiments unnecessarily difficult to understand. In addition, all embodiments can be used in combination with each other.

[0065] Embodiment 1:

[0066] like Figure 1 , 2 As shown in Figure 3, this embodiment discloses an exhaust gas waste heat recovery and cleaning device, including: a box body, a first heat exchange device 40, a second heat exchange device 50, a partition plate 60, a baffle plate 70, a water inlet main pipe 90, a water inlet joint 80, a pipeline cleaning device 30, and a cleaning nozzle 301. The box body is arranged on a plane, and the box body is provided with an exhaust gas inlet port for high-temperature exhaust gas to enter, an exhaust gas outlet port for low-temperature exhaust gas to discharge, a heating gas inlet port for low-temperature heating gas to enter, and a hot air outlet port for high-temperature heating gas to discharge. The first heat exchange device 40 is arranged inside the box, the first heat exchange device 40 is arranged on the right side of the box, the first heat exchange device 40 is detachably connected to the box, the first heat exchange device 40 is provided with multiple groups, the first heat exchange device 40 is provided with 2 groups, the second heat exchange device 50 is arranged inside the box, the second heat exchange device 50 is detachably connected to the box, the second heat exchange device 50 is provided with multiple groups, the second heat exchange device 50 is provided with 3 groups, the second heat exchange device 50 is arranged in a relative position to the first heat exchange device 40, and the second heat exchange device 50 is provided with multiple groups. 0 is arranged on the left side of the box body, a second group of first heat exchange devices 40 is arranged on the right side of the second heat exchange device 50, the second heat exchange device 50 and the first heat exchange device 40 form a flow channel for the high-temperature exhaust gas to flow, two groups of second heat exchange devices 50 are arranged on the left side of the first heat exchange device 40, a second group of first heat exchange devices 40 is arranged on the left side of the two groups of second heat exchange devices 50, and a third group of second heat exchange devices 50 is arranged on the left side of the second group of first heat exchange devices 40, and a partition plate 60 is arranged inside the box body, and one end of the partition plate 60 is attached to the The partition plate 60 is combined on the inner wall surface of the box, and is arranged above the first group of first heat exchange devices 40. The other end of the partition plate 60 is connected to the outside of the first group of first heat exchange devices 40. The partition plate 60 is arranged in the gap between the outside of the first group of first heat exchange devices 40 and the inner wall of the box, and is used to block and separate the high-temperature exhaust gas and the heating gas. The baffle plate 70 is arranged inside the box, and the two ends of the baffle plate 70 are fixedly connected to the relative inner wall surface of the box. The baffle plate 70 is vertically arranged to the inner wall of the box, and the two ends of the baffle plate 70 are fixed to the inner walls on both sides of the box.

[0067] The water inlet main pipe 90 is arranged above the outer side of the box body, the water inlet main pipe 90 is fixedly connected to the box body, the interior of the water inlet main pipe 90 is hollow, and one end of the water inlet main pipe 90 penetrates into the box body; the water inlet joint 80 is arranged above the outer side of the box body, the water inlet joint 80 is connected to the water inlet main pipe 90, the interior of the water inlet joint 80 is hollow, the interior of the water inlet joint 80 is connected in series with the water inlet main pipe 90, and the water inlet joint 80 is detachably connected to the water inlet main pipe 90; the second heat exchange device 50 is arranged in the box body, the interior of the second heat exchange device 50 is hollow, and a gap is reserved between the second heat exchange device 50 and the inner wall of the box body, and the second heat exchange device 50 is composed of a plurality of hollow circular tubes; the pipeline cleaning device 30 is arranged inside the box body, and the pipeline cleaning device 30 is arranged inside the box body. The management device 30 is detachably connected to the inner wall of the box, a plurality of pipeline cleaning devices 30 are arranged, and the pipeline cleaning devices 30 are made of stainless steel. A gap is maintained between the management cleaning devices, and the management cleaning devices are arranged in parallel. The management cleaning device includes: a cleaning nozzle 301 is arranged inside the box, and the cleaning nozzle 301 is in the same direction as the hollow round tube of the second heat exchange device 50, one end of the cleaning nozzle 301 extends into the hollow round tube of the second heat exchange device 50, and the other end of the cleaning nozzle 301 is connected to the water inlet main 90. A plurality of cleaning nozzles 301 are arranged, and the number of cleaning nozzles 301 is the same as the number of hollow round tubes of the second heat exchange device 50, and the same gap is maintained between the cleaning nozzles 301.

[0068] A dehairing machine is provided at the exhaust gas inlet on the right side of the box body for connecting the setting machine oven and the exhaust gas waste heat recovery and cleaning device. The dehairing machine can clean the lint impurities in the high-temperature exhaust gas before the high-temperature exhaust gas enters the box body, thereby reducing the lint content in the box body and reducing the lint that is adsorbed on the surfaces of the first heat exchange device 40 and the second heat exchange device 50 after being excessively adsorbed to affect the heat conversion performance.

[0069] In the above technical scheme, the embodiment of the present application uses the first heat exchange device 40 and the second heat exchange device 50 to perform internal conversion of the heat carried by the high-temperature exhaust gas after the high-temperature exhaust gas is discharged into the box. When the high-temperature exhaust gas passes through the outside of the first heat exchange device 40 and the inside of the second heat exchange device 50, the second heat exchange device 50 absorbs the heat carried by the high-temperature exhaust gas. The high-temperature exhaust gas that has separated the heat by the second heat exchange device 50 continues to flow through the partition plate 60 and the baffle plate 70 along the set route, thereby reducing the heat carried by the high-temperature exhaust gas to a minimum. The partition plate 60 and the baffle plate 70 increase the flow distance when the high-temperature exhaust gas flows to further make the heat conversion more sufficient. The set pipeline cleaning device 30 cleans the inner wall of the hollow circular tube of the second heat exchange device 50 through the cleaning nozzle 301, thereby preventing water mist, oil stains, and fiber materials carried by the high-temperature exhaust gas from adhering to the inner wall of the second heat exchange device 50 to form dirt, thereby reducing the heat exchange performance of the second heat exchange device 50.

[0070] Specifically, the box body is of a regular shape, and the box body is a rectangle with a hollow interior. There are legs arranged at the bottom of the box body, and the legs are arranged around the bottom of the box body. The legs are used to support the box body so that it has a certain distance from the plane. The legs are used to separate the box body from the ground to prevent the exhaust gas waste heat recovery automation device from rusting after long-term contact with the ground. An insulation layer is arranged outside the box body, and the insulation layer covers the outer periphery of the box body. The insulation layer is composed of insulation cotton. The insulation layer is arranged in winter because the box body is made of metal, which will easily dissipate heat. At the same time, the legs will keep the box body away from the ground, and the box body will be in an empty state, which will increase the area exposed to cold air. The heat in the box body will dissipate from all sides of the box body, which will easily cause the temperature in the box body to drop, thereby affecting the conversion of internal exhaust gas heat. Therefore, insulation cotton is coated around the outer periphery of the box body to control the internal temperature of the box body and prevent temperature loss.

[0071] A steam pipe is arranged at the lower part of the interior of the box body, and the open end of the steam pipe passes through the lower surface of the box body toward the diversion adjustment plate. A cleaning fire extinguishing water tank connected to the steam pipe is arranged at the lower part of the box body. When a fire or explosion occurs in the box body, the steam pipe is arranged to spray and extinguish the fire to reduce the harm caused by the accident. One end of the cleaning fire extinguishing water tank is connected to the pump station 110, and the liquid flow of the cleaning fire extinguishing water tank is controlled by the pump station 110. The cleaning fire extinguishing water tank is an alkaline water circulating water tank. A spray circulating water tank connected to the steam pipe is also arranged at the lower part of the box body, and the spray circulating water tank is also connected to the pump station 110.

[0072] An explosion-proof device 10 is arranged outside the box. The explosion-proof device 10 is made of aluminum material and is fixedly connected to the box. The explosion-proof device 10 is used to prevent static electricity from rubbing against each other of some fabric fibers in the box under airflow disturbance, thereby causing fire and explosion accidents. The impact of the accident is reduced through the explosion-proof device 10. Once a fire and explosion occurs, the explosion-proof aluminum plate will explode in the first time to prevent the explosion from occurring.

[0073] like Figure 3 , 4 As shown in Figures 5 and 6, specifically, the first heat exchange device 40 is arranged on the right side of the box body, the first heat exchange device 40 and the second heat exchange device 50 are staggered, the second heat exchange device 50 is arranged on the left side of the first heat exchange device 40, the second heat exchange device 50 is flush with the top of the first heat exchange device 40, and a second second heat exchange device 50 is also arranged on the left side of the second heat exchange device 50, a second first heat exchange device 40 is arranged on the left side of the second second heat exchange device 50, and a third second heat exchange device 50 is arranged on the left side of the second first heat exchange device 40; an opening is arranged on the surface of the second heat exchange device 50, the opening is arranged vertically, and the opening is used for the circulation of high-temperature exhaust gas, and the first heat exchange device 40 is fixed to the inside of the box body by a connecting piece 502.

[0074] Specifically, the first heat exchange device 40 is provided with a heat absorption zone and a heat dissipation zone. The heat absorption zone is used to absorb the heat of the exhaust gas, and the heat dissipation zone is used to heat the gas to absorb the heat; the heat absorption zone is arranged below the first heat exchange device 40, and the heat absorption zone is integrated with the first heat exchange device 40, and the heat dissipation zone is arranged above the first heat exchange device 40, the heat absorption zone is the lower part of the first heat exchange device 40, and the heat dissipation zone is the upper part of the first heat exchange device 40.

[0075] A superconducting sheet is arranged on the periphery of the first heat exchange device 40. The superconducting sheet is arranged on the periphery of the heat dissipation area. The superconducting sheet is fixedly connected to the first heat exchange device 40 around. There are multiple superconducting sheets. Gaps are arranged between the superconducting sheets 503. The superconducting sheets are arranged in regular shapes such as circles, rectangles, and squares. The superconducting sheets are installed in an adaptive number according to the length of the heat dissipation area of ​​the first heat exchange device 40. The heat dissipation effect is further improved by arranging superconducting sheets on the periphery of the first heat exchange device 40.

[0076] Specifically, the second heat exchange device 50 is provided with a heat absorption zone and a heat dissipation zone. The heat absorption zone is used to absorb the heat of the exhaust gas, and the heat dissipation zone is used to heat the gas to absorb the heat; the heat absorption zone is arranged inside the second heat exchange device 50, and the heat absorption zone is integrally formed with the first heat exchange device 40, and the heat dissipation zone is arranged outside the second heat exchange device 50.

[0077] Aluminum fins 501 are arranged on the periphery of the second heat exchange device 50, and the aluminum fins 501 are fixedly connected to the second heat exchange device 50 around. There are multiple aluminum fins 501, and gaps are arranged between the aluminum fins 501. The aluminum fins 501 are arranged in regular shapes such as round, rectangular, square, etc., and the aluminum fins 501 are installed in an adaptive number according to the length of the second heat exchange device 50. By arranging the aluminum fins 501 on the periphery of the second heat exchange device 50, the high-temperature exhaust gas absorption efficiency in the heat absorption area is improved, and the heat dissipation effect is further accelerated. The aluminum fins 501 installed on the second heat exchange device 50 are the same as the aluminum fins 501 installed on the first heat exchange device 40, and the aluminum fins 501 installed on the first heat exchange device 40 occupy the same length as the second heat exchange device 50.

[0078] Specifically, an adjusting device 20 is connected to one side of the second heat exchange device 50, and the adjusting device 20 is movably connected to the second heat exchange device 50. One end of the adjusting device 20 is used to rotate along the outer side of the second heat exchange device 50. A plurality of adjusting devices 20 are provided, and the adjusting devices 20 are divided into a group of three. There are three adjusting devices 20 connected to the second heat exchange device 50. The adjusting device 20 is a diverter adjusting plate, which is installed below the second heat exchange device 50. The diverter adjusting plate is connected to the open end of the second heat exchange device 50, and the diverter adjusting plate forms an oblique angle with the second heat exchange device 50. The diverter adjusting plate is connected to the second heat exchange device 50 through a rotating shaft, and the diverter adjusting plate automatically adjusts the angle according to the flow rate of high-temperature exhaust gas.

[0079] A partition plate 60 is arranged in the box body, and there are three partition plates 60. The first partition plate 60 is arranged above the first group of first heat exchange devices 40 on the right side of the box body, the second partition plate 60 is arranged below the middle of the first group of second heat exchange devices 50 and the second group of second heat exchange devices 50, and the third partition plate 60 is arranged above the second group of first heat exchange devices 40. The three partition plates 60 are arranged on opposite surfaces respectively, and there is a distance between the three partition plates 60. The partition plates 60 are made of stainless steel and are used to prevent moisture corrosion caused by water mist or high-temperature exhaust gas in the box body from reducing rust. The upper and lower ends of the partition plates 60 are respectively attached to the inner wall surface of the box body, the upper surface of the first heat exchange device 40 and the lower surface of the second heat exchange device 50, and the partition plates 60 are guided The high-temperature exhaust gas is guided to flow along the set route to improve the heat exchange effect. At the same time, the high-temperature exhaust gas can effectively exchange heat and will not be deposited in the box due to different gas flow directions, thereby reducing the situation of heat exchange failure. The diversion adjustment plate connected to the second heat exchange device 50 is inclined to the exhaust gas flow path. When the high-temperature exhaust gas flows through the second heat exchange device 50, it can flow quickly through the diversion adjustment plate. It will not accumulate at the connection between the partition plate 60 and the second heat exchange device 50 due to the obstruction of the partition plate 60, forming impurity accumulation. At the same time, the diversion adjustment plate can also improve the accuracy of the high-temperature exhaust gas flowing into the second heat exchange device 50. When the high-temperature exhaust gas flows through the first second heat exchange device 50, the diversion adjustment plate guides the high-temperature exhaust gas into the first second heat exchange device 50. After the first second The high-temperature exhaust gas of the heat exchange device 50 undergoes the first heat conversion in the heat absorption zone, and the heat absorption zone absorbs part of the heat of the high-temperature exhaust gas. Then the high-temperature exhaust gas continues to flow to the next second heat exchange device 50, and undergoes the second heat conversion through the heat absorption zone of the next second heat exchange device 50. During the second heat conversion, the partition plate 60 arranged above the second heat exchange device 50 and the first heat exchange device 40 blocks the high-temperature exhaust gas in the flow path. The partition plate 60 also makes the high-temperature exhaust gas flow only along the set path, reducing the part of the exhaust gas that stays in place due to the gas flow direction during the flow of the high-temperature exhaust gas, thereby improving the heat exchange effect and preventing the exhaust gas from leaking to the outside of the box to cause an accident. The high-temperature exhaust gas that has undergone the secondary heat conversion flows into the third second heat exchange device The heat absorption zone of the device 50 performs a third heat conversion. After three heat conversions, the heat carried by the high-temperature exhaust gas will be minimized, thereby effectively utilizing the heat carried by the exhaust gas and reducing the waste of resources caused by direct emissions. The high-temperature exhaust gas retains a high temperature after heat exchange through the diversion adjustment plate and the second heat exchange device 50 during the heat conversion process of the high-temperature exhaust gas. The temperature of the high-temperature exhaust gas is 160°C before entering the box for heat conversion. After the second heat exchange device 50 dissipates the heat of the exhaust gas, the heat of the exhausted exhaust gas is reduced to 80-110°C, thereby improving the purification effect when the exhaust gas enters the purification equipment for gas treatment. The heat carried by the high-temperature exhaust gas is saved in the heat dissipation zone through multiple conversion heat of the second heat exchange device 50.Then the heat is absorbed by the heat absorption area of ​​the first heat exchange device 40, thereby realizing the heat conversion of the high-temperature exhaust gas.

[0080] A blower 100 is arranged on the left side of the box body, and the blower 100 is used to guide external air into the box body to form heating gas. After the heating gas enters the box body through the heating gas inlet, due to the gap between the second heat exchange device 50, the heating gas will flow from the gap, and the heating gas will be heated when passing through the heat dissipation area of ​​the first heat exchange device 40 and the heat dissipation area of ​​the second heat exchange device 50, thereby forming high-temperature heating gas. The heating process of the heating gas is to flow from the heating gas inlet of the box body to the hot air outlet, and realize the heat transfer between the high-temperature exhaust gas and the heating gas through the second heat exchange device 50 and the first heat exchange device 40. At the same time, since the high-temperature exhaust gas releases heat inside the second heat exchange device 50 and the heating gas absorbs heat outside the second heat exchange device 50 and the first heat exchange device 40, the two parts of gas will not mix together, and will not cause the impurities carried between the gases to be repeatedly circulated to affect the working processing efficiency. The high-temperature heating gas flows back into the oven of the shaping machine through the hot air outlet to reuse the heat, thereby reducing heat waste.

[0081] After the heating gas enters the box, the heating gas flows through the heat dissipation area of ​​the second heat exchange device 50 and the first heat exchange device 40, and the heat dissipation efficiency is improved by the aluminum fins 501, thereby improving the heat conversion efficiency between the heating gas and the high-temperature exhaust gas.

[0082] The second heat exchange device 50 and the first heat exchange device 40 are vertically installed in the box. By vertically installing the second heat exchange device 50 and the first heat exchange device 40, during long-term use, the liquid accumulated inside the second heat exchange device 50 and outside the first heat exchange device 40 will fall along the surface due to gravity and flow into the oil-water separator, reducing the deposition on the surface of the second heat exchange device 50 and the first heat exchange device 40, resulting in surface dirt that reduces the heat exchange performance.

[0083] Specifically, a circulation device is arranged inside the box body, and the circulation device includes a circulation damper and a circulation damper pipe. The circulation damper pipe is arranged on the outer periphery of the box body, and the circulation damper pipe is fixedly connected to the box body by screws. The interior of the circulation damper pipe is hollow for circulating heating gas, and a control damper valve is arranged outside the circulation damper pipe, and the flow rate of heating gas in the circulation damper pipe is controlled by the control damper valve. The circulation damper is arranged between the first heat exchange device 40 and the second heat exchange device, and the interior of the circulation damper is hollow. A connecting plate is arranged on the left side of the circulation damper, and the circulation damper is fixedly connected to the circulation damper pipe through the connecting plate, and the surface of the connecting plate is open. A front wall panel is arranged in front of the circulation damper, and the left side of the front wall panel is fixedly connected to the surface of the connecting plate. A rear wall panel is arranged behind the front wall panel, and the left side of the rear wall panel is fixedly connected to the surface of the connecting plate. There is a gap between the front wall panel and the rear wall panel, and the front wall panel The front wall panel has the same shape as the rear wall panel, and a straight through hole is arranged between the front wall panel and the rear wall panel. There are three straight through holes. The front wall panel and the rear wall panel are connected to form an external air circulation channel. A circulation hole is also arranged on the surface of the front wall panel. There are multiple circulation holes. The number of circulation holes is adapted according to the size of the front wall panel. There are six circulation holes. The circulation holes pass through the front wall panel, and the circulation holes do not pass through the rear wall panel. The circulation holes allow part of the external air to stay in the circulation damper, and then the heated gas in the circulation damper is guided into the blower 100 through the circulation damper pipe to realize hot air circulation, and then the external air blown into the box by the blower 100 is preliminarily heated, so that the external air can reach the temperature of the hot air in the box before entering the box, so that the temperature of the heated gas remains relatively uniform, and the large temperature range variation is reduced. The circulation damper and the circulation damper pipe are made of steel plate. The circulation device is used to further improve the utilization rate of exhaust gas heat energy. The internal heated air is circulated by the circulation device so that the external air reaches the hot air temperature inside the box before entering the box, reducing the unstable heat exchange caused by temperature changes, thereby achieving a relatively stable heat exchange effect when the high-temperature exhaust gas heat is exchanged.

[0084] Specifically, the high-temperature exhaust gas in the regulating device 20 and the second heat exchange device 50 flows along the flow channel, and the flow channel forms an S-shaped path through the second heat exchange device 50 and the flow splitting regulating plate. The high-temperature exhaust gas flows through the exhaust gas inlet through the heat absorption zone of the first heat exchange device 40, then flows into the diversion adjustment plate, flows from the diversion adjustment plate to the first second heat exchange device 50, absorbs the heat energy carried by the high-temperature exhaust gas through the heat absorption zone of the first second heat exchange device 50, flows from the first second heat exchange device 50 to the second second heat exchange device 50, absorbs the heat energy twice through the heat absorption zone of the second second heat exchange device 50, then flows out through the diversion adjustment plate of the second second heat exchange device 50, flows from the diversion adjustment plate of the second second heat exchange device 50 to the heat absorption zone of the second first heat exchange device 40, then flows to the third second heat exchange device 50 through the heat absorption zone of the second first heat exchange device 40, flows from the diversion adjustment plate of the third second heat exchange device 50 into the heat absorption zone of the third second heat exchange device 50 for the third heat energy absorption, and finally is discharged through the exhaust gas outlet for subsequent treatment.

[0085] While the high-temperature exhaust gas absorbs heat energy through the second heat exchange device 50, the heating gas inlet on the exhaust gas outlet side of the box introduces external air, and the introduced external air is heated by the absorbed heat energy. The heated external air is discharged from the hot air outlet on the right side of the box and flows into the processing equipment, realizing the conversion and reuse of the heat energy of the high-temperature exhaust gas. The high-temperature exhaust gas entering the box is first dehumidified by the heat absorption area of ​​the first heat exchange device 40 to reduce the water content in the high-temperature exhaust gas and reduce the adhesion to the surfaces of the first heat exchange device 40 and the second heat exchange device 50.

[0086] like Figure 1 , 3 As shown in , 4, 5, and 6, specifically, three water inlet main pipes 90 are arranged on the outside of the box body, one end of the three water inlet main pipes 90 are respectively inserted into the box body and connected with the pipe cleaning device 30, and the water inlet main pipes 90 control the internal flow through the water inlet joints 80, and the number of the water inlet joints 80 is adapted to the water inlet main pipes 90.

[0087] The second heat exchange device 50 is fixed inside the box body, and the cleaning nozzle 301 in the hollow tube of the second heat exchange device 50 does not contact the inner wall surface of the hollow tube of the second heat exchange device 50. The part of the cleaning nozzle 301 extending into the second heat exchange device 50 accounts for one quarter of the cleaning nozzle 301, and the cleaning nozzle 301 extends into the hollow tube by 20 cm. The cleaning nozzle 301 is used to regularly clean the high-temperature exhaust gas after heat conversion in the second heat exchange device 50, because long-term exhaust gas conversion will form dirt on the inner wall of the hollow tube. The formed dirt adheres to the inner wall surface of the hollow tube, which will cause the heat conversion performance of the high-temperature exhaust gas to decrease, thereby reducing the heat utilization rate.

[0088] The pipeline cleaning device 30 includes: a water tank is arranged inside the box body, the inside of the water tank is hollow for storing liquid, the water tank is made of stainless steel material to prevent the moisture carried by the high-temperature exhaust gas from corroding the water tank and producing rust during long-term use, the water tank is arranged directly above the second heat exchange device 50, the number of the water tank and the second heat exchange device 50 are adapted, there are three water tanks, the water tanks include: a water tank upper panel 302, a water tank bottom plate 303, a reinforcing cross plate 307, and a reinforcing side plate 308, the water tank upper panel 302 is arranged above the water tank; the water tank bottom plate 303 is arranged below the water tank, the water tank upper panel 302 and the water tank bottom plate 303 are symmetrically arranged, and there is a distance between the water tank upper panel 302 and the water tank bottom plate 303; the reinforcing cross plate 307 is arranged between the water tank upper panel 302 and the water tank bottom plate 303, The upper and lower sides of the strong cross plate 307 are respectively fixed on the lower surface of the upper panel 302 of the water tank and the upper surface of the bottom plate 303 of the water tank. Two strengthening cross plates 307 are provided, which are symmetrically arranged between the upper panel 302 of the water tank and the bottom plate 303 of the water tank; the strengthening side plate 308 is provided between the upper panel 302 of the water tank and the bottom plate 303 of the water tank, and the upper and lower sides of the strengthening side plate 308 are respectively fixed on the lower surface of the upper panel 302 of the water tank and the upper surface of the bottom plate 303 of the water tank. Two strengthening side plates 308 are provided, which are symmetrically arranged between the upper panel 302 of the water tank and the bottom plate 303 of the water tank; one end of the strengthening side plate 308 is connected to one end of the strengthening cross plate 307 to form a closed loop, and the upper panel 302 of the water tank, the bottom plate 303 of the water tank, the strengthening cross plate 307 and the strengthening side plates 308 form a closed containing body.

[0089] A reinforcement lug 305 is also provided between the upper panel 302 of the water tank and the bottom plate 303 of the water tank. The reinforcement lug 305 is provided at the periphery of the closed loop formed by the reinforcement transverse plate 307 and the reinforcement side plate 308. There are four reinforcement lugs 305, which are respectively provided around the closed containing body. The reinforcement lugs 305 increase the fixation between the upper panel 302 of the water tank and the bottom plate 303 of the water tank. A reinforcement bottom plate 304 is provided on the lower surface of the bottom plate 303 of the water tank. The reinforcement bottom plate 304 is fixedly connected to the bottom plate 303 of the water tank. The reinforcement bottom plate 304 is connected to the fixing plate above the second heat exchange device 50. There is a distance between the water tank and the second heat exchange device 50. A reinforcing rib 306 is also provided between the water tank upper panel 302 and the water tank bottom panel 303. The reinforcing rib 306 is provided in a closed loop formed by the reinforcing horizontal plate 307 and the reinforcing side plate 308. The reinforcing rib 306 is used to increase the bearing capacity between the water tank upper panel 302 and the water tank bottom panel 303 to prevent deformation. The portion of the cleaning nozzle 301 extending into the hollow circular tube is provided with a nozzle hole 309, which is aligned with the inner wall surface of the hollow circular tube and is provided as a through hole.

[0090] The upper surface of the water tank is connected to one end of the water inlet main pipe 90, and the water inlet main pipe 90 is connected to the water inlet joint 80. The water flow inside the water inlet main pipe 90 is controlled by the water inlet joint 80. The water inlet joint 80 is connected to the pump station 110 to provide power. Hot alkaline water is stored in the water tank. When the inner wall surface of the second heat exchange device 50 is cleaned, the nozzle hole 309 of the cleaning nozzle 301 sprays hot alkaline water to flow along the inner wall surface of the second heat exchange device 50, thereby cleaning the inner wall surface of the second heat exchange device 50, separating the dirt adhered to the inner wall surface of the second heat exchange device 50, reducing the adhesion of dirt, and improving the heat exchange efficiency. In addition, there is no need to disassemble the second heat exchange device 50 during cleaning, which reduces unnecessary disassembly and assembly processes, improves work efficiency, and reduces the occurrence of damage to the second heat exchange device 50 during repeated disassembly and assembly.

[0091] like Figure 3 , 7 As shown, specifically, the first heat exchange device 40 is composed of a plurality of hollow tubes, the hollow tubes are superconducting tubes, the superconducting tubes are made of superalloy materials, and superconducting sheets are arranged on the periphery of the upper part of the superconducting tube. The heat conducted by the lower part of the superconducting tube is dissipated by the superconducting sheets to achieve heat conversion of high-temperature exhaust gas. The first heat exchange device 40 is formed of 168 superconducting tubes in a regular shape, and gaps are left between the superconducting tubes. The second heat exchange device 50 is composed of a plurality of hollow tubes. The hollow tubes of the second heat exchange device 50 are made of copper. The hollow tubes are copper fin tubes. The copper fin tubes are hollow round tubes with openings at both ends. The second heat exchange device 50 is formed of 216 copper fin tubes in a regular shape. The high-temperature exhaust gas intake volume in the box satisfies the formula Q=3600F*V, so that the first heat exchange device 40 and the second heat exchange device 50 in the box can heat all the exhaust gas when exchanging the high-temperature exhaust gas, preventing the excess high-temperature exhaust gas from not being completely heat exchanged after the air volume is too much, reducing the heat exchange effect. The copper fin tube and the superconducting tube are corrosion-resistant, reducing corrosion caused by use in the box, affecting the heat exchange effect. The cleaning nozzle 301 is made of stainless steel to prevent the exhaust gas in the hollow round tube from corroding the cleaning nozzle 301 and reducing corrosion damage. The S-shaped path formed by the first heat exchange device 40 and the second heat exchange device 50 will not be in direct contact with the external air added by the blower 100.

[0092] The first heat exchange device 40 and the second heat exchange device 50 are rectangular, and the copper fin tubes and the superconducting tubes are circular. The arrangement of the copper fin tubes and the superconducting tubes is adapted according to the width of the box, thereby improving the heat exchange efficiency of the high-temperature exhaust gas. The copper fin tubes of the second heat exchange device 50 are circular and hollow, so that the high-temperature exhaust gas absorbs heat energy when flowing into the hollow interior of the second heat exchange device 50. The second heat exchange device 50 is fixed by a plurality of hollow copper fin tubes, and a uniform gap is maintained between the plurality of hollow copper fin tubes, so that the external heating gas flows outside the second heat exchange device 50 to realize the conversion between the heat of the exhaust gas and the heat of the external air. The first heat exchange device 40 is fixed by a plurality of hollow superconducting tubes, and a uniform gap is maintained between the plurality of hollow superconducting tubes. The external air introduced is heated by the first heat exchange device 40. Since the first heat exchange device 40 absorbs and preserves part of the heat released by the second heat exchange device 50, the first heat exchange device 40 can heat the introduced external air, thereby realizing the transfer of the heat of the exhaust gas.

[0093] The steam pipe is arranged at the lower part of the box body, and is used to extinguish fire through the steam pipe when static electricity is generated by friction between fabric fibers in the device under air flow disturbance, resulting in a fire accident.

[0094] During the high-temperature exhaust gas heat exchange process, the cleaning nozzle 301 arranged on the inner tube wall of the third group of second heat exchange devices 50 sprays hot alkaline water, and the spraying flow rate is controlled by the water inlet joint 80. When the high-temperature exhaust gas contacts the water mist, the heat dissipation will be accelerated, thereby improving the efficiency of heat conversion. While the high-temperature exhaust gas converts heat, the cleaning nozzle 301 can properly clean the inner tube wall of the copper fin tube, which is more effective than using only external cleaning, because the water mist sprayed by the cleaning nozzle 301 forms water mist on the inner tube wall of the third group of second heat exchange devices 50 outside, and then adheres to the inner tube wall to form water droplets that flow downward along the wall surface of the inner tube wall to remove the oil impurities attached to the inner tube wall and flow into the alkaline solution tank.

[0095] Finally, a method for using an exhaust gas waste heat recovery device is provided, comprising the following steps:

[0096] Transfer materials and put the textile filling cloth into the setting machine for drying and stentering;

[0097] The collecting device is started, and the high-temperature exhaust gas generated by the textile filling cloth is first processed by the hair removal machine and then enters the collecting device for heat conversion. The heat conversion absorbs the heat carried by the high-temperature exhaust gas through the first heat exchange device 40 and the second heat exchange device 50, and then replenishes the external air for heat exchange between the gases. During the heat conversion, the pipeline cleaning device 30 is used to spray hot alkaline water mist on the inner wall surface of the third group of second heat exchange devices 50 through the cleaning nozzle 301 to accelerate the heat exchange, and the heat exchange effect is improved by the contact between the water mist and the high-temperature exhaust gas. At the same time, the cleaning nozzle 301 cleans the inner tube wall of the third group of second heat exchange devices 50 to reduce the oil and impurities attached to the inner tube wall of the third group of second heat exchange devices 50, so that the heat exchange effect of the third group of second heat exchange devices 50 is maintained in the best state, and the frequency of overall cleaning of the collecting device is reduced, thereby improving the working efficiency. The high-temperature exhaust gas is absorbed while the high-temperature exhaust gas flows through the lower part of the first group of first heat exchange devices 40. The carried heat is then conducted to the upper part of the first group of first heat exchange devices 40 and dissipated through the superconducting sheets, and then the high-temperature exhaust gas is guided to flow into the first group of second heat exchange devices 50 through the regulating device 20, and the heat carried by the high-temperature exhaust gas is absorbed by the inner tube wall of the first group of second heat exchange devices 50 and dissipated outwardly through the externally arranged aluminum fins 501. The high-temperature exhaust gas flows through the inner tube wall of the second group of second heat exchange devices 50 for a second heat exchange and dissipates the heat outwardly through the externally arranged aluminum fins 501. After the third heat exchange, it flows to the lower part of the second group of first heat exchange devices 40 through the regulating device 20 to absorb the heat of the high-temperature exhaust gas and then conducts to the upper part of the second group of first heat exchange devices 40 for heat dissipation through the superconducting sheets, and then flows into the third group of second heat exchange devices 50 through the regulating device 20 for the fifth heat exchange. After the fifth heat conversion, the high-temperature exhaust gas becomes low-temperature exhaust gas and then flows into the purification equipment for gas treatment.

[0098] Start the purification equipment and pass the waste gas after heat conversion into the purification equipment for air treatment.

[0099] Specifically, after the step of starting the collecting device, there is another step: starting the pipeline cleaning device 30, and spraying the hot alkaline water flowing in the water inlet main pipe 90 through the pump station 110 through the cleaning nozzle 301 to adhere to the inside of the second heat exchange device 50. When the water mist accumulates to a certain amount, it falls along the inner wall of the second heat exchange device 50 by its own gravity to wash away the dirt attached to the inner wall of the second heat exchange device 50, and at the same time forms water mist on the path through which the high-temperature exhaust gas flows.

[0100] Specifically, after the step of starting the pipeline cleaning device 30, there is another step: starting the circulation device, replenishing external air into the collecting device through the blower 100, and after the high-temperature exhaust gas converts the heat, the heat dissipated by the second heat exchange device 50 is used through the circulation device to make part of the heated air flow back to the blower 100 along the circulation damper pipe, and repeatedly replenishing it into the collecting device to keep the air temperature stable.

[0101] Heat exchange process between the added external air and the high-temperature exhaust gas

[0102] Specifically, Figure 8 As shown, when the exhaust gas waste heat recovery device is in use, high-temperature exhaust gas is transported into the box body through the pipeline, and the high-temperature exhaust gas passes through the bottom of the first group of superconducting tube heat exchange devices for the first heat absorption, and then the high-temperature exhaust gas is guided into the inner tube wall of the first group of copper tube heat exchange devices through the regulating device 20 inclined to the right for the second heat absorption. While absorbing heat, the aluminum fins 501 surrounding the outside of the first group of copper tube heat exchange devices dissipate heat, and then after the high-temperature exhaust gas flows out from the upper opening of the first group of copper tube heat exchange devices, it flows to the upper opening of the second group of copper tube heat exchange devices, passes through the upper opening of the second group of copper tube heat exchange devices, enters the inner tube wall of the second group of copper tube heat exchange devices for the third heat absorption, and then at the first group of copper tube heat exchange devices, the high-temperature exhaust gas flows out from the upper opening of the first group of copper tube heat exchange devices, and then enters the inner tube wall of the second group of copper tube heat exchange devices through the upper opening of the second group of copper tube heat exchange devices for the third heat absorption. While absorbing heat three times, the aluminum fins 501 surrounding the outside of the second copper tube heat exchange device dissipate heat. After the high-temperature exhaust gas flows out from the lower opening of the second copper tube heat exchange device, the high-temperature exhaust gas is guided to the bottom of the second superconducting tube heat exchange device through the regulating device 20 tilted to the left for the fourth heat absorption. Then, the high-temperature exhaust gas is guided to the inner tube wall of the third copper tube heat exchange device through the regulating device 20 tilted to the right for the fifth heat absorption. While absorbing heat for the fifth time, the aluminum fins 501 surrounding the outside of the third copper tube heat exchange device dissipate heat. Then, the high-temperature exhaust gas flows out from the upper opening of the third copper tube heat exchange device and is transported to the purification equipment for air treatment.

[0103] While the high-temperature exhaust gas absorbs heat through the superconducting tube heat exchange device and the copper tube heat exchange device, the pipe cleaning device 30 at 200-300mm inside the pipe wall of the third group of copper tube heat exchange devices sprays water columns to form water mist, which is mixed with the high-temperature exhaust gas to absorb the heat carried by the high-temperature exhaust gas. The water mist sprayed by the pipe cleaning device 30 can further improve the heat absorption effect and increase the temperature after heat absorption by 3-5°C.

[0104] While absorbing heat from the high-temperature exhaust gas, the blower 100 arranged at the exhaust gas outlet side of the box body replenishes external air into the box body, and the replenished external air passes through the third group of copper tube heat exchange devices and blows to the first group of superconducting tube heat exchange devices. The external air flows in the following order: the external air flows through the external aluminum fins 501 of the third group of copper tube heat exchange devices and flows horizontally to the top of the second group of superconducting tube heat exchange devices, then flows horizontally through the external aluminum fins 501 of the second group of copper tube heat exchange devices, then flows horizontally through the external aluminum fins 501 of the first group of copper tube heat exchange devices, and finally flows horizontally to the top of the first group of superconducting tube heat exchange devices and flows into the oven of the setting machine from the hot air outlet of the box body. The external air supplied by the blower 100 flows in a horizontal direction, and the heat outside the third group of copper tube heat exchange devices is the highest because the water mist sprayed by the pipeline cleaning device 30 improves the heat absorption effect of the inner tube wall of the third group of copper tube heat exchange devices, thereby increasing the external heat of the third group of copper tube heat exchange devices. The blower 100 blows the heat of the three groups of copper tube heat exchange devices and the two groups of superconducting tube heat exchange devices horizontally toward the hot air outlet and re-flows into the oven of the setting machine.

[0105] Three groups of pipeline cleaning devices 30 are respectively arranged at 200-300mm of the inner tube wall of the three groups of copper tube heat exchange devices. The pipeline cleaning devices 30 are used to clean the inner tube wall of the copper tube heat exchange device to reduce the oil impurities attached to the inner tube wall of the copper tube heat exchange. The pipeline cleaning device 30 adapted to the third group of copper tube heat exchange devices is in a normal working state, and the other two groups of pipeline cleaning devices 30 are activated when oil impurities are attached to the inner tube wall of the copper tube heat exchange device and are in a closed state during normal operation. The third group of copper tube heat exchange devices always maintains the highest heat exchange efficiency when in use, thereby reducing the cleaning frequency of the overall device and improving the heat exchange efficiency of high-temperature exhaust gas.

[0106] Although the above describes the illustrative specific implementation methods of the present application so that technicians in this technical field can understand the present application, the present application is not limited to the scope of the specific implementation methods. For ordinary technicians in this technical field, as long as various changes are within the spirit and scope of the present application defined and determined by the attached claims, all application creations using the concept of the present application are protected.

Claims

1. A waste gas waste heat recovery and cleaning device, characterized in that: The invention comprises a box body, wherein the box body is arranged on a plane, and the interior of the box body is hollow; a collecting device, wherein the collecting device is arranged in the box body, wherein the collecting device is fixedly connected to the box body, wherein a storage space is arranged inside the collecting device, and wherein the storage space is used for centralized treatment of high-temperature exhaust gas; the collecting device comprises: a second heat exchange device, wherein the second heat exchange device is arranged inside the box body, wherein the second heat exchange device is detachably connected to the box body, wherein three groups of the second heat exchange device are arranged, wherein the second heat exchange device is composed of a plurality of hollow circular tubes, wherein a gap exists between the second heat exchange device and the inner wall of the box body, wherein a plurality of the hollow circular tubes are arranged, and uniform gaps are left between the plurality of the hollow circular tubes, and wherein the plurality of the hollow circular tubes are arranged The two fixing plates are connected on the same plane by fixing plates; two fixing plates are provided, the two fixing plates are symmetrically arranged and there is a gap between the fixing plates; a pipeline cleaning device, the pipeline cleaning device is arranged inside the box body, the pipeline cleaning device is detachably connected to the inner wall of the box body, and the pipeline cleaning device comprises: a cleaning nozzle, the cleaning nozzle is arranged inside the box body, the cleaning nozzle and the hollow round tube of the second heat exchange device are in the same direction, one end of the cleaning nozzle extends into the hollow round tube of the second heat exchange device, the cleaning nozzle in the hollow round tube does not contact the inner wall of the hollow round tube, and the part of the cleaning nozzle extending into the second heat exchange device accounts for one quarter of the total length of the cleaning nozzle; A first heat exchange device is arranged inside the box, the first heat exchange device is detachably connected to the box, two groups of the first heat exchange device are arranged, the second heat exchange device is arranged at a relative position to the first heat exchange device, the second heat exchange device is arranged on the left side of the box, a second group of the first heat exchange device is arranged on the right side of the second heat exchange device, the second heat exchange device and the first heat exchange device form a flow channel for high-temperature exhaust gas to flow, two groups of the second heat exchange device are arranged on the left side of the first heat exchange device, a second group of the first heat exchange device is arranged on the left side of the two groups of the second heat exchange device, and a third group of the second heat exchange device is arranged on the left side of the second group of the first heat exchange device; The partition plate is arranged inside the box, one end of the partition plate is attached to the inner wall surface of the box, the partition plate is arranged above the first heat exchange device of the first group, and the other end of the partition plate is connected to the outside of the first heat exchange device of the first group, and the partition plate is arranged in the gap between the outside of the first heat exchange device of the first group and the inner wall of the box, and the partition plate blocks the high-temperature exhaust gas in the flow path so that the high-temperature exhaust gas will only flow along the set path, thereby improving the heat exchange effect, the baffle plate is arranged inside the box, and both ends of the baffle plate are fixedly connected to the relative inner wall surfaces of the box, the baffle plate is arranged vertically to the inner wall of the box, and both ends of the baffle plate are fixed to the inner walls on both sides of the box; A regulating device is connected to one side of the second heat exchange device, the regulating device is movably connected to the second heat exchange device, one end of the regulating device is used to rotate along the outer side of the second heat exchange device, a plurality of regulating devices are provided, the regulating devices are divided into a group of three, and there are three regulating devices connected to the second heat exchange device, the regulating device is a diverter regulating plate, the diverter regulating plate is installed below the second heat exchange device, the diverter regulating plate is connected to the open end of the second heat exchange device, the diverter regulating plate forms an oblique angle with the second heat exchange device, the diverter regulating plate is connected to the second heat exchange device through a rotating shaft, and the diverter regulating plate automatically adjusts the angle according to the flow rate of high-temperature exhaust gas; It also includes: a circulation device, which is arranged inside the box, the circulation device is fixedly connected to the box, there is a gap between the circulation device and the upper and lower sides of the box, the circulation device is hollow inside, the circulation device is used for air circulation, and the circulation device and the heat exchange device are arranged on the same horizontal line; a purification device, which is arranged on one side of the box, the purification device is fixedly connected to the box, and the purification device is used to purify high-temperature exhaust gas; a blast device, which is arranged on one side of the box, the blast device is fixedly connected to the box, and the blast device is used to blow external air into the box; It also includes: a water inlet main pipe, which is arranged outside the box body, connected to the box body, and is hollow inside. One end of the water inlet main pipe penetrates into the box body; a water inlet joint, which is arranged outside the box body, connected to the water inlet main pipe, and is hollow inside. The water inlet joint is connected to the water inlet main pipe in series, and the water inlet joint is detachably connected to the water inlet main pipe; The pipeline cleaning device also includes: a water tank, which is arranged inside the box body, and the interior of the water tank is hollow for storing liquid, and the water tank is arranged directly above the second heat exchange device, and the number of the water tank and the second heat exchange device is adapted, and the water tank includes: a water tank upper panel, which is arranged above the water tank; a water tank bottom plate, which is arranged below the water tank, and the water tank upper panel and the water tank bottom plate are symmetrically arranged, and a distance is maintained between the water tank upper panel and the water tank bottom plate; a reinforcing cross plate, which is arranged between the water tank upper panel and the water tank bottom plate, and the corresponding two sides of the reinforcing cross plate are respectively fixed to the lower surface of the water tank upper panel and the upper surface of the water tank bottom plate, and the reinforcing cross plate is provided with two symmetrically arranged on the water tank The water tank upper panel and the water tank bottom plate are connected with each other, and the reinforcing side panels are connected with each other to form a closed loop. The water tank upper panel, the water tank bottom plate, the reinforcing cross plate and the reinforcing side panels form a closed containing body. Reinforcing ears are also provided between the water tank upper panel and the water tank bottom plate, and the reinforcing ears are provided on the periphery of the closed loop formed by the reinforcing cross plate and the reinforcing side panels. There are four reinforcing ears, which are respectively provided around the closed containing body.

2. The exhaust gas waste heat recovery and cleaning device according to claim 1 is characterized in that: Aluminum fins are arranged around the outer circumference of the hollow circular tube. The aluminum fins are fixedly connected to the outer circumferential wall of the hollow circular tube. The aluminum fins surround the length of the hollow circular tube.

3. The exhaust gas waste heat recovery and cleaning device according to claim 2 is characterized in that: Gaps are provided between the aluminum fins, and both ends of the aluminum fins are respectively connected to the fixing plates.

4. The exhaust gas waste heat recovery and cleaning device according to claim 3 is characterized in that: The fixing plate is in contact with the inner wall surface of the box body.

5. The exhaust gas waste heat recovery and cleaning device according to claim 4 is characterized in that: The hollow round tube is made of any one of copper, stainless steel and iron.

6. The exhaust gas waste heat recovery and cleaning device according to claim 5 is characterized in that: There are three water inlet main pipes arranged on the outside of the box body, and one end of the three water inlet main pipes are respectively inserted into the box body and connected with the pipe cleaning device. The water inlet main pipe controls the internal flow through the water inlet joints, and the water inlet joints are adapted to the number of the water inlet main pipes.

7. The exhaust gas waste heat recovery and cleaning device according to claim 6 is characterized in that: Uniform gaps are left between the multiple hollow round tubes of the second heat exchange device.

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