Energy-saving and environment-friendly waste heat recovery type heat exchange system

Abstract

The invention discloses an energy-saving and environment-friendly waste heat recovery type heat exchange system, and relates to the technical field of heat exchange, a heat-insulation shell is provided with a heat exchange dust removal assembly, the outer side of a heat exchange water pipe assembly is uniformly sleeved with fixed heat exchange sheets, and the side, close to the fixed heat exchange sheets, of a movable heat exchange sheet is fixedly clamped with a scraper; the electric push rod pushes the sliding block to slide along the sliding rail, the scraping plate can scrape off dust adhering between the fixed heat exchange pieces, the movable sleeve pushes the fixed lead screw to move upwards, the movable lead screw can move upwards, the movable lead screw can move upwards, the movable lead screw can move upwards, and therefore the dust can be removed, and the dust can be removed. The protruding plates and the movable heat exchange pieces which are connected with the lifting plates are pushed to penetrate through the guide scraping holes, the scraping plates penetrate through the scraping plate holes, the movable heat exchange pieces are also cleaned, cleaning is easy while the large heat exchange area of the internal structure is guaranteed, the heat exchange efficiency is guaranteed, and the cleaning difficulty is greatly reduced.

Description

Technical Field

[0001] The invention relates to the technical field of heat exchange, and in particular to an energy-saving and environment-friendly waste heat recovery type heat exchange system. Background Art

[0002] Due to the shortage of energy, as energy conservation work is further carried out, various new and energy-saving advanced furnaces are becoming more and more perfect, but flue gas is still the main way for general energy-consuming equipment to waste energy. For example, boiler exhaust consumes about 15% of energy, while other equipment such as setting machines, dryers and kilns in the printing and dyeing industry mainly consume energy through flue gas emissions. Flue gas waste heat recovery mainly converts the heat carried by flue gas into usable heat through a certain heat exchange method.

[0003] Patent application number 201410749785.2 mentions an exhaust gas waste heat recovery device, which has a simple structure and is easy to install. It can effectively recover the exhaust gas waste heat, save energy, and has a high exhaust gas heat exchange efficiency. However, when the above device is in use, fine dust is left when the flue gas passes through the heat exchange component. The accumulated dust will slowly block the ventilation channel, resulting in low heat exchange efficiency and difficulty in cleaning. In addition, the contact area of ​​the heat exchange part is small, which further leads to low heat exchange efficiency. Summary of the invention

[0004] The present invention provides an energy-saving and environmentally friendly waste heat recovery heat exchange system, which can effectively solve the problem proposed in the above background technology that fine dust is left behind when the flue gas passes through the heat exchange components. The accumulation of dust will slowly block the ventilation channel, resulting in low heat exchange efficiency and difficulty in cleaning. In addition, the contact area of ​​the heat exchange part is small, which further leads to low heat exchange efficiency.

[0005] To achieve the above object, the present invention provides the following technical solutions: an energy-saving and environmentally friendly waste heat recovery heat exchange system, comprising a heat-insulating shell, the heat-insulating shell is equipped with a heat exchange dust removal component, and the heat exchange dust removal component comprises a heat exchange water pipe component;

[0006] The two heat exchange water pipe assemblies are symmetrically installed inside the heat insulation shell, and fixed heat exchange plates are evenly sleeved on the outside of the heat exchange water pipe assemblies. Movable heat exchange plates are evenly installed between the fixed heat exchange plates inside the heat insulation shell. A scraper is fixedly installed on one side of the movable heat exchange plate close to the fixed heat exchange plate. A slot is provided at the movable heat exchange plate close to the heat exchange water pipe assembly. A protruding plate is welded on the top of the other side of the movable heat exchange plate. A guide scraping hole is provided at the top surface of the heat insulation shell corresponding to the top of the movable heat exchange plate. A scraper hole is provided at the guide scraping hole corresponding to the scraper. The protruding plates in the same row on the same straight line are fixedly sleeved on the middle part of the parallel rods, and a movable cover plate is welded at the protruding plate fitting the guide scraping hole.

[0007] The same end of the two parallel rods is respectively connected to the two ends of the lifting plate, and a screw rod is fixedly connected to the bottom surface of the lifting plate. A movable sleeve is connected to the outer side of the screw rod through a threaded sleeve, and the bottom end of the movable sleeve is connected to the top end of the output shaft of the output motor. The bottom end of the output motor is fixedly embedded in the top end of the slider, and the slider is slidably installed on the top surface of the slide rail, one end of the slider is connected to the protruding end of the electric push rod, and the other end of the electric push rod is connected to one end of the slide rail, and a block is installed on the top surface of the slide rail away from the slider.

[0008] According to the above technical solution, the heat exchange water pipe assembly includes a straight pipe;

[0009] A straight tube is installed in the middle of several fixed heat exchange fins in a uniform rotation, and two ends of adjacent straight tubes are respectively connected to two ends of the arc tube. A positioning steel ring is sleeved at the inner position of the arc tube, and a sealing ring is sleeved at the arc tube near the positioning steel ring. A transmission gear is sleeved at one end of the straight tube, and the adjacent transmission gears located on the same vertical line are meshed with each other. A driving gear is meshed on one side of the transmission gear located at the bottom. The middle of the driving gear is connected to the gear motor through a transmission rod, and the gear motor is connected to the heat insulation shell through screws. Heat exchange grooves are uniformly opened on the outside of the straight tube between adjacent fixed heat exchange fins, and a heat-conducting clamp is fixedly clamped inside the heat exchange groove. A heat-conducting rod is welded in the middle of the heat-conducting clamp, and a heat-conducting groove is opened in the middle of the heat-conducting rod. Dust baffles are fixedly clamped at both ends of the fixed heat exchange fin close to the transmission gear.

[0010] One end of the two heat exchange water pipe assemblies is connected by a connecting pipe, and the other end of the two heat exchange water pipe assemblies is respectively installed with a water exchange pipe that passes through the heat insulation shell. The heat exchange water pipe assembly is combined into an S-shaped structure by a straight pipe and an arc pipe.

[0011] According to the above technical solution, connection covers are installed at both ends of the heat-insulating shell by bolts, and a protective filter is installed at one end of the connection cover close to the fixed heat exchange plate.

[0012] According to the above technical solution, the two ends of the fixed heat exchange plate are respectively clamped to the top and bottom of the insulation shell, the bottom end of the movable heat exchange plate is overlapped to the inner bottom surface of the insulation shell, and the width of the clamping groove is equal to the diameter of the heat exchange water pipe assembly.

[0013] According to the above technical solution, the output motor, the electric push rod and the output motor input end are electrically connected to the external power output end respectively, and the bottom surface of the heat-insulating shell is flush with the bottom surface of the slide rail.

[0014] According to the above technical solution, a cleaning and collecting assembly is installed on the bottom surface of the heat-insulating shell, and the cleaning and collecting assembly includes a supporting shell;

[0015] A support housing is installed at the bottom end of the heat-insulating housing. A conveying pipe is evenly and rotatably installed through the inside of the support housing. A heat-insulating groove is fixedly installed through the top surface inside the support housing of the conveying pipe. An extrusion sealing plate is slidably clamped on the top surface of the heat-insulating groove. A heat-insulating strip is clamped and installed at the top end of the extrusion sealing plate. Support springs are evenly fixedly installed on the bottom surface of the extrusion sealing plate. An exchange hole is opened on the top surface of the heat-insulating housing corresponding to the heat-insulating strip. A leakage hole is opened on the bottom surface of the heat-insulating housing corresponding to the exchange hole. A negative pressure hole is opened on the bottom surface of the conveying pipe. A heat-resistant soft rubber ring is embedded in the negative pressure hole. A rotating handle is welded to one end of the conveying pipe;

[0016] The other ends of the conveying pipes all penetrate through a collection box. A filter frame is installed through one end of the collection box. Vacuum pumps are symmetrically installed at one end of the collection box away from the conveying pipes.

[0017] According to the above technical solution, the end face of the extrusion sealing plate is in a "冂" shape, the edge of the top surface of the heat-insulating strip is rounded, and the end face of the rotating handle is a combination of a triangle and a rectangle.

[0018] According to the above technical solution, the exchange hole and the leakage hole have the same size, and the edge of the heat-insulating strip fits the inner edge of the exchange hole.

[0019] According to the above technical solution, the input end of the vacuum pump is electrically connected to the output end of an external power supply. A clamping hole is opened on the collection box corresponding to the vacuum pump. The vacuum pump is embedded in the clamping hole.

[0020] According to the above technical solution, the end face of the filter frame is in a "匚" shape, and the top surface and the bottom surface of the filter frame respectively fit the top surface and the bottom surface of the collection box.

[0021] Compared with the prior art, the beneficial effects of the present invention are:

[0022] 1. A heat exchange and dust removal component is provided. After long-term heat exchange, both the fixed heat exchange fins and the movable heat exchange fins accumulate a large amount of dust, and the heat exchange efficiency is reduced. The electric push rod pushes the slider to slide along the slide rail, and the scraper will scrape off the dust adhered between the fixed heat exchange fins. Then, the movable heat exchange fin is pulled back to its original position. Repeat the above steps several times. Finally, when the movable heat exchange fin returns to its original position, the output motor is started. The output motor drives the movable sleeve to rotate, and the movable sleeve pushes the fixed lead screw upward, pushing the protruding plate connected to the lifting plate and the movable heat exchange fin through the guiding scraping hole, and the scraper passes through the scraper hole to clean the movable heat exchange fin, and the movable heat exchange fin is also cleaned. While ensuring a large heat exchange area of the internal structure, it is easy to clean, ensuring the heat exchange efficiency. After that, only the accumulated dust at the bottom end of the heat-insulating housing needs to be cleaned, greatly reducing the cleaning difficulty;

[0023] During the heat exchange process, the output motor drives the transmission gear to rotate through the active gear, thereby driving the straight tube part to rotate in the fixed heat exchange plate, and the heat-conducting rod outside the heat-conducting clamp also rotates accordingly. The side of the heat-conducting rod is always in contact with the fixed heat exchange plate, and the impurities adhered to the outside of the fixed heat exchange plate near the heat-conducting rod are removed to ensure the heat conduction effect, increase the contact area between the straight tube and the fixed heat exchange plate, improve the heat conduction effect, and the heat-conducting groove further increases the heat exchange contact area to improve the heat exchange efficiency of the heat exchange structure.

[0024] 2. A cleaning and collecting component is provided. The handle is turned to disengage the heat-insulating strip that originally blocked the exchange hole and the leakage hole from the bottom of the exchange hole, and the heat-resistant soft rubber ring is instead attached to the edge of the exchange hole. The vacuum pump is started, and the collection box and the conveying pipe are in a negative pressure state. The dust is gradually sucked into the conveying pipe and flows into the filter frame of the collection box again to discharge the dust at the bottom of the insulation shell, further reducing the difficulty of cleaning. The handle is turned again to reset, and the extrusion sealing plate in the insulation groove is pushed by the support spring. The heat-insulating strip blocks the bottom of the leakage hole to ensure that the heat exchange structure continues to exchange heat.

[0025] In summary, the heat exchange dust removal component plays the role of heat exchange and automatic cleaning, while the cleaning and collection component assists the heat exchange dust removal component, further reducing the difficulty of cleaning and collecting the heat exchange dust removal component, making the heat exchange system more convenient to use. BRIEF DESCRIPTION OF THE DRAWINGS

[0026] The accompanying drawings are used to provide further understanding of the present invention and constitute a part of the specification. They are used to explain the present invention together with the embodiments of the present invention and do not constitute a limitation of the present invention.

[0027] In the attached picture:

[0028] Figure 1 It is a schematic diagram of the structure of the present invention;

[0029] Figure 2 It is a schematic diagram of the structure of the heat exchange dust removal assembly of the present invention;

[0030] Figure 3 It is a schematic diagram of the installation structure of the connecting pipe of the present invention;

[0031] Figure 4 The present invention Figure 3 Schematic diagram of the A region structure;

[0032] Figure 5 It is a schematic diagram of the installation structure of the movable cover plate of the present invention;

[0033] Figure 6 It is a structural schematic diagram of a hot water exchange pipe assembly of the present invention;

[0034] Figure 7 It is a schematic diagram of the installation structure of the heat conducting rod of the present invention;

[0035] Figure 8 It is a schematic diagram of the installation structure of the arc tube of the present invention;

[0036] Fig. 9 The present invention Figure 8 Schematic diagram of the structure of region B;

[0037] Fig.10 It is a schematic diagram of the structure of the cleaning and collecting assembly of the present invention;

[0038] Fig.11 It is a schematic diagram of the installation structure of the collection box of the present invention;

[0039] Fig.12 The present invention Fig.11 Schematic diagram of the C region structure;

[0040] Numbers in the figure: 1, heat-insulating shell;

[0041] 2. Heat exchange dust removal assembly; 21. Heat exchange water pipe assembly; 202. Connecting pipe; 203. Fixed heat exchange plate; 204. Movable heat exchange plate; 205. Scraper; 206. Slot; 207. Protruding plate; 208. Guide scraper hole; 209. Scraper hole; 210. Parallel rod; 211. Movable cover plate; 212. Lifting plate; 213. Screw rod; 214. Movable sleeve; 215. Output motor; 216. Sliding block; 217. Slide rail; 218. Electric push rod; 219. Stopper; 220. Connecting cover; 221. Protective filter; 222. Water exchange pipe;

[0042] 2101, straight tube; 2102, curved tube; 2103, positioning steel ring; 2104, sealing ring; 2105, transmission gear; 2106, driving gear; 2107, gear motor; 2108, heat exchange groove; 2109, heat conduction clamp ring; 2110, heat conduction rod; 2111, heat conduction groove; 2112, dust baffle;

[0043] 3. Cleaning and collecting components; 301. Support shell; 302. Delivery pipe; 303. Insulation groove; 304. Extrusion sealing plate; 305. Insulation strip; 306. Support spring; 307. Exchange hole; 308. Leakage hole; 309. Negative pressure hole; 310. Heat-resistant soft rubber ring; 311. Turning handle; 301. Support shell; 302. Delivery pipe; 303. Insulation groove; 304. Extrusion sealing plate; 305. Insulation strip; 306. Support spring; 307. Exchange hole; 308. Leakage hole; 309. Negative pressure hole; 310. Heat-resistant soft rubber ring; 311. Turning handle; 312. Collection box; 313. Filter frame; 314. Vacuum pump. DETAILED DESCRIPTION

[0044] The preferred embodiments of the present invention are described below in conjunction with the accompanying drawings. It should be understood that the preferred embodiments described herein are only used to illustrate and explain the present invention, and are not used to limit the present invention.

[0045] Example: Figure 1-12 As shown, the present invention provides an energy-saving and environmentally friendly waste heat recovery type heat exchange system technical solution, including a heat insulation shell 1, the heat insulation shell 1 is equipped with a heat exchange dust removal component 2, the heat exchange dust removal component 2 includes a hot water pipe component 21, a connecting pipe 202, a fixed heat exchange plate 203, a movable heat exchange plate 204, a scraper 205, a slot 206, a protruding plate 207, a guide scraper hole 208, a scraper hole 209, a parallel rod 210, a movable cover plate 211, a lifting plate 212, a screw rod 213, a movable sleeve 214, an output motor 215, a slider 216, a slide rail 217, an electric push rod 218, a stopper 219, a connecting cover 220, a protective filter 221 and a water exchange pipe 222;

[0046] Two heat exchange pipe assemblies 21 are symmetrically installed inside the heat insulation shell 1. Fixed heat exchange sheets 203 are evenly sleeved on the outside of the heat exchange pipe assemblies 21. Movable heat exchange sheets 204 are evenly installed inside the heat insulation shell 1 at positions between the fixed heat exchange sheets 203. The two ends of the fixed heat exchange sheets 203 are respectively clamped on the top and bottom of the heat insulation shell 1. The bottom end of the movable heat exchange sheet 204 overlaps the bottom surface of the inside of the heat insulation shell 1. The width of the clamping groove 206 is equal to the diameter of the heat exchange pipe assembly 21, so that the movable heat exchange sheet 204 is convenient to be embedded between the fixed heat exchange sheets 203. The movable heat exchange sheet 204 is close to the fixed heat exchange sheets A scraper 205 is fixedly mounted on one side of the heat plate 203, a slot 206 is provided at the movable heat exchange plate 204 near the heat exchange water pipe assembly 21, a protruding plate 207 is welded at the top of the other side of the movable heat exchange plate 204, a guide scraper hole 208 is provided at the top surface of the heat insulation shell 1 corresponding to the top of the movable heat exchange plate 204, a scraper hole 209 is provided at the guide scraper hole 208 corresponding to the scraper 205, the protruding plates 207 in the same row on the same straight line are fixedly sleeved at the middle of the parallel rod 210, and a movable cover plate 211 is welded at the protruding plate 207 fitting the guide scraper hole 208;

[0047] The same end of the two parallel rods 210 is respectively connected to the two ends of the lifting plate 212, and the bottom surface of the lifting plate 212 is fixedly connected with a screw rod 213. The outer side of the screw rod 213 is connected with a movable sleeve 214 through a threaded sleeve. The bottom end of the movable sleeve 214 is connected to the top of the output shaft of the output motor 215. The bottom end of the output motor 215 is fixedly embedded in the top of the slider 216. The slider 216 is slidably installed on the top surface of the slide rail 217. One end of the slider 216 is connected to the extended end of the electric push rod 218. The output motor 215, the electric push rod 218 and the input end of the gear motor 2107 are respectively The bottom surface of the heat-insulating housing 1 is flush with the bottom surface of the slide rail 217 to ensure the normal operation of the output motor 215 and the electric push rod 218. The other end of the electric push rod 218 is connected to one end of the slide rail 217. A stopper 219 is installed on the top surface of the slide rail 217 away from the end of the slider 216. Connecting covers 220 are installed at both ends of the heat-insulating housing 1 by bolts. A protective filter screen 221 is installed at one end of the connecting cover 220 close to the fixed heat exchange plate 203 to prevent debris from colliding with the fixed heat exchange plate 203 and the movable heat exchange plate 204 and causing them to deform.

[0048] The heat exchange water pipe assembly 21 includes a straight pipe 2101, an arc pipe 2102, a positioning steel ring 2103, a sealing ring 2104, a transmission gear 2105, a driving gear 2106, a gear motor 2107, a heat exchange groove 2108, a heat conduction clamp 2109, a heat conduction rod 2110, a heat conduction groove 2111 and an ash baffle 2112;

[0049] A straight tube 2101 is installed in the middle of several fixed heat exchange plates 203, and the two ends of adjacent straight tubes 2101 are respectively connected to the two ends of the arc tube 2102. The arc tube 2102 is sleeved with a positioning steel ring 2103 at the inner position of the straight tube 2101, and the arc tube 2102 is sleeved with a sealing ring 2104 near the positioning steel ring 2103. A transmission gear 2105 is sleeved at one end of the straight tube 2101. Adjacent transmission gears 2105 located on the same vertical line are meshed with each other, and a driving gear 2106 is meshed on one side of the transmission gear 2105 located at the bottom. The middle of the driving gear 2106 is connected to the gear motor 2107 through a transmission rod, and the gear motor 2107 is connected to the heat-insulating housing 1 through screws. Heat exchange grooves 2108 are evenly opened on the outside of the straight tube 2101 between adjacent fixed heat exchange plates 203. A heat-conducting clamp 2109 is fixedly clamped inside the heat exchange groove 2108. A heat-conducting rod 2110 is welded in the middle of the heat-conducting clamp 2109. A heat-conducting groove 2111 is opened in the middle of the heat-conducting rod 2110. Dust baffles 2112 are fixedly clamped at both ends of the fixed heat exchange plate 203 close to the transmission gear 2105.

[0050] One end of the two heat exchange water pipe assemblies 21 is connected by a connecting pipe 202, and the other end of the two heat exchange water pipe assemblies 21 is respectively installed with a water exchange pipe 222 that penetrates the heat insulation shell 1. The heat exchange water pipe assemblies 21 are combined into an S-shaped structure by the straight pipe 2101 and the arc pipe 2102.

[0051] A cleaning and collecting component 3 is installed on the bottom surface of the heat insulation housing 1. The cleaning and collecting component 3 includes a support housing 301, a conveying pipe 302, a heat insulation groove 303, a pressing sealing plate 304, a heat insulation strip 305, a support spring 306, an exchange hole 307, a leakage hole 308, a negative pressure hole 309, a heat-resistant soft rubber ring 310, a rotating handle 311, a collecting box 312, a filter frame 313 and a vacuum pump 314;

[0052] A support housing 301 is installed at the bottom end of the heat insulation housing 1. The conveying pipe 302 is evenly and rotatably penetrated and installed inside the support housing 301. The heat insulation groove 303 is fixedly penetrated and installed at the top surface inside the support housing 301 where the conveying pipe 302 is located. The pressing sealing plate 304 is slidably clamped on the top surface of the heat insulation groove 303. The heat insulation strip 305 is clamped and installed at the top end of the pressing sealing plate 304. The support springs 306 are evenly fixedly installed at the bottom surface of the pressing sealing plate 304. The exchange hole 307 is opened on the top surface of the heat insulation housing 1 corresponding to the heat insulation strip 305. The leakage hole 308 is opened on the bottom surface of the heat insulation housing 1 corresponding to the exchange hole 307. The negative pressure hole 309 is opened on the bottom surface of the conveying pipe 302. The heat-resistant soft rubber ring 310 is embedded inside the negative pressure hole 309. One end of the conveying pipe 302 is welded with the rotating handle 311. The end surface of the pressing sealing plate 304 is in a shape of "冂". The edge of the top surface of the heat insulation strip 305 is rounded. The end surface of the rotating handle 311 is a combination of a triangle and a rectangle, which is convenient for determining the rotation angle of the rotating handle 311. The sizes of the exchange hole 307 and the leakage hole 308 are the same. The edge of the heat insulation strip 305 fits the inner edge of the exchange hole 307, which is convenient for the heat insulation strip 305 to be embedded into the exchange hole 307;

[0053] The other ends of the conveying pipes 302 all penetrate through the collecting box 312. A filter frame 313 is penetrated and installed at one end of the collecting box 312. The end surface of the filter frame 313 is in a shape of "匚", and the top surface and the bottom surface of the filter frame 313 respectively fit the top surface and the bottom surface of the collecting box 312 so as to collect dust conveniently. The vacuum pumps 314 are symmetrically installed at one end of the collecting box 312 away from the conveying pipes 302. The input ends of the vacuum pumps 314 are electrically connected to the output end of an external power supply. The collecting box 312 is provided with clamping holes corresponding to the vacuum pumps 314, and the vacuum pumps 314 are embedded in the clamping holes to ensure the normal operation of the vacuum pumps 314.

[0054] The working principle and use process of the present invention are as follows: the smoke pipe is connected to the connection cover 220, and enters the heat-insulating shell 1 after being initially blocked by the protective filter 221. When the smoke passes between the fixed heat exchange plate 203 and the movable heat exchange plate 204, the speed of the smoke passing through the fixed heat exchange plate 203 is reduced due to the blocking of the scraper 205, and the smoke and the fixed heat exchange plate 203 exchange heat. The hot water exchange pipe assembly 21 at the bottom end of the outer side of the heat-insulating shell 1 is connected to the water inlet pipe, and the cold water exchanges heat again with the fixed heat exchange plate 203 through the hot water exchange pipe assembly 21 to achieve the purpose of heat exchange, recover waste heat, and reduce the temperature of the smoke. In this process, fine dust in the smoke will continuously accumulate on the outside of the fixed heat exchange plate 203 and the movable heat exchange plate 204, and in this process, the guide scraper hole 208 is covered by the movable cover plate 211;

[0055] During the heat exchange process, the gear motor 2107 is started, and the gear motor 2107 drives the transmission gear 2105 to rotate through the driving gear 2106. Figure 8 It can be seen that the water exchange pipe 222 and the arc pipe 2102 are both rotatably connected to the straight pipe 2101, the positioning steel ring 2103 plays a connecting role, and the sealing ring 2104 assists in sealing. The transmission gear 2105 drives the straight pipe 2101 part to rotate in the fixed heat exchange plate 203, while the water exchange pipe 222 and the arc pipe 2102 are not moving. The heat-conducting rod 2110 on the outside of the heat-conducting clamp 2109 also rotates with the straight pipe 2101. The side of the heat-conducting rod 2110 is always in contact with the fixed heat exchange plate 203, and the impurities adhered to the outside of the fixed heat exchange plate 203 near the heat-conducting rod 2110 are removed to ensure the heat conduction effect, increase the contact area between the straight pipe 2101 and the fixed heat exchange plate 203, and improve the heat conduction effect. The heat-conducting groove 2111 further increases the heat exchange contact area and improves the heat exchange efficiency of the heat exchange structure.

[0056] After a long period of heat exchange, a lot of dust accumulates on both the fixed heat exchange plate 203 and the movable heat exchange plate 204, and the heat exchange efficiency is reduced. The gear motor 2107 drives the straight tube 2101 to rotate, so that the heat conducting rod 2110 is horizontal and away from the movable heat exchange plate 204 to prevent the heat conducting rod 2110 from hindering the movement of the movable heat exchange plate 204. At this time, the electric push rod 218 is started, and the electric push rod 218 pushes the slider 216 to slide along the slide rail 217. The screw rod 213, the movable sleeve 214, the output motor 215 and the lifting plate 212 move horizontally at the same time, driving the movable heat exchange plate 204 connected to the parallel rod 210 to be embedded in the gap between the fixed heat exchange plates 203. At this time, the scraper 205 will scrape off the dust adhered between the fixed heat exchange plates 203 until the slot 206 is completely engaged and embedded in the hot water pipe group The outer side of the component 21 is cleaned, and the fixed heat exchanger 203 is cleaned, and then the movable heat exchanger 204 is pulled to reset. The above steps are repeated several times to ensure the cleaning effect of the fixed heat exchanger 203. Finally, when the movable heat exchanger 204 is reset, the output motor 215 is started, and the output motor 215 drives the movable sleeve 214 to rotate. The movable sleeve 214 pushes the fixed screw rod 213 to move upward, and pushes the protruding plate 207 connected to the lifting plate 212 and the movable heat exchanger 204 to pass through the guide scraping hole 208. The scraper 205 passes through the scraper hole 209 to clean the movable heat exchanger 204. The movable heat exchanger 204 is also cleaned, which reduces the heat exchange area of ​​the internal structure while ensuring that it is easy to clean and the heat exchange efficiency is ensured. After that, it is only necessary to clean the accumulated dust at the bottom of the heat insulation shell 1, which greatly reduces the difficulty of cleaning;

[0057] After the heat exchange dust removal component 2 completes the cleaning of the fixed heat exchange plate 203 and the movable heat exchange plate 204, the rotating handle 311 is rotated so that the insulation strip 305 that originally blocked the exchange hole 307 and the leakage hole 308 is detached from the bottom end of the exchange hole 307, and the heat-resistant soft rubber ring 310 is instead attached to the edge of the exchange hole 307, and the vacuum pump 314 is started. The collecting box 312 and the conveying pipe 302 are in a negative pressure state, and the dust is gradually sucked into the conveying pipe 302 and flows into the filter frame 313 of the collecting box 312 again, and the dust at the bottom end of the insulating shell 1 is discharged, further reducing the difficulty of cleaning. Then, the filter frame 313 at one end of the collecting box 312 is pulled out, and the dust in the filter frame 313 is poured out to complete the cleaning. Finally, the rotating handle 311 is rotated again to reset, and the extrusion sealing plate 304 in the insulation groove 303 is pushed by the support spring 306, and the insulation strip 305 blocks the bottom end of the leakage hole 308 to ensure that the heat exchange structure continues to exchange heat.

[0058] The heat exchange dust removal component 2 plays the role of heat exchange and automatic cleaning, while the cleaning and collection component 3 assists the heat exchange dust removal component 2, further reducing the difficulty of cleaning and collecting the heat exchange dust removal component 2, making the heat exchange system more convenient to use.

[0059] Finally, it should be noted that the above description is only a preferred example of the present invention and is not intended to limit the present invention. Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art can still modify the technical solutions described in the aforementioned embodiments or replace some of the technical features therein by equivalents. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present invention shall be included in the protection scope of the present invention.

Claims

1. An energy-saving and environment-friendly waste heat recovery heat exchange system, comprising a heat-insulating housing (1), characterized in that: The heat-insulating housing (1) is equipped with a heat exchange dust removal assembly (2), and the heat exchange dust removal assembly (2) comprises a heat exchange water pipe assembly (21); The two heat exchange pipe assemblies (21) are symmetrically mounted inside the heat insulation shell (1); fixed heat exchange sheets (203) are evenly sleeved on the outside of the heat exchange pipe assemblies (21); movable heat exchange sheets (204) are evenly mounted between the fixed heat exchange sheets (203) inside the heat insulation shell (1); a scraper (205) is fixedly mounted on one side of the movable heat exchange sheet (204) close to the fixed heat exchange sheet (203); a slot (205) is provided on the movable heat exchange sheet (204) close to the heat exchange pipe assemblies (21); 06), a protruding plate (207) is welded to the top of the other side of the movable heat exchange plate (204), a guide scraping hole (208) is opened at the top surface of the heat-insulating shell (1) corresponding to the top of the movable heat exchange plate (204), a scraper hole (209) is opened at the guide scraping hole (208) corresponding to the scraper (205), the protruding plates (207) in the same row on the same straight line are all fixedly sleeved on the middle of the parallel rod (210), and a movable cover plate (211) is welded to the protruding plate (207) in contact with the guide scraping hole (208); The same end of the two parallel rods (210) is respectively connected to the two ends of the lifting plate (212), the bottom surface of the lifting plate (212) is fixedly connected with a screw rod (213), the outer side of the screw rod (213) is connected with a movable sleeve (214) through a threaded sleeve, the bottom end of the movable sleeve (214) is connected to the top end of the output shaft of the output motor (215), the bottom end of the output motor (215) is fixedly embedded in the top end of the slider (216), the slider (216) is slidably installed on the top surface of the slide rail (217), one end of the slider (216) is connected to the protruding end of the electric push rod (218), the other end of the electric push rod (218) is connected to one end of the slide rail (217), and a stopper (219) is installed on the top surface of the slide rail (217) away from the slider (216).

2. The energy-saving and environment-friendly waste heat recovery heat exchange system according to claim 1, characterized in that: The water exchange pipe assembly (21) comprises a straight pipe (2101); A straight tube (2101) is installed in the middle of a plurality of the fixed heat exchange fins (203) so as to rotate uniformly and penetrate through them. Two ends of adjacent straight tubes (2101) are respectively connected to two ends of the arc tube (2102). A positioning steel ring (2103) is sleeved on the arc tube (2102) at an inner position of the straight tube (2101). A sealing ring (2104) is sleeved on the arc tube (2102) near the positioning steel ring (2103). A transmission gear (2105) is sleeved on one end of the straight tube (2101). Adjacent transmission gears (2105) located on the same vertical line are meshed with each other. A driving gear (2106) is meshed on one side of the transmission gear (2105) located at the bottom. The middle of the driving gear (2106) is connected to the gear motor (2107) via a transmission rod, and the gear motor (2107) is connected to the heat-insulating housing (1) via screws; heat exchange grooves (2108) are evenly provided on the outside of the straight tube (2101) between adjacent fixed heat exchange plates (203); a heat-conducting clamping ring (2109) is fixedly clamped inside the heat exchange groove (2108); a heat-conducting rod (2110) is welded to the middle of the heat-conducting clamping ring (2109); a heat-conducting groove (2111) is provided in the middle of the heat-conducting rod (2110); and dust baffles (2112) are fixedly clamped at both ends of the fixed heat exchange plate (203) on the side close to the transmission gear (2105); One end of the two heat exchange water pipe assemblies (21) is connected via a connecting pipe (202), and the other end of the two heat exchange water pipe assemblies (21) is respectively provided with a water exchange pipe (222) penetrating the heat insulation shell (1). The heat exchange water pipe assemblies (21) are combined into an S-shaped structure via a straight pipe (2101) and an arc pipe (2102).

3. The energy-saving and environment-friendly waste heat recovery heat exchange system according to claim 1, characterized in that: Both ends of the heat-insulating housing (1) are mounted with connection covers (220) by means of bolts, and a protective filter screen (221) is mounted on one end of the connection cover (220) close to the fixed heat exchange plate (203).

4. The energy-saving and environment-friendly waste heat recovery heat exchange system according to claim 1, characterized in that: The two ends of the fixed heat exchange plate (203) are respectively clamped to the top and bottom of the heat insulation shell (1), the bottom end of the movable heat exchange plate (204) is overlapped to the inner bottom surface of the heat insulation shell (1), and the width of the clamping groove (206) is equal to the diameter of the heat exchange water pipe assembly (21).

5. The energy-saving and environment-friendly waste heat recovery heat exchange system according to claim 2, characterized in that: The input ends of the output motor (215), the electric push rod (218) and the gear motor (2107) are respectively electrically connected to the output end of the external power supply, and the bottom surface of the heat-insulating shell (1) is flush with the bottom surface of the slide rail (217).

6. The energy-saving and environment-friendly waste heat recovery heat exchange system according to claim 5, characterized in that: A cleaning and collecting assembly (3) is installed on the bottom surface of the heat-insulating shell (1), and the cleaning and collecting assembly (3) comprises a supporting shell (301); A support housing (301) is installed at the bottom end of the heat-insulating housing (1). A conveying pipe (302) is evenly and rotatably installed through the support housing (301). An insulating groove (303) is fixedly installed through the top surface inside the support housing (301) where the conveying pipe (302) is located. An extrusion sealing plate (304) is slidably clamped on the top surface of the insulating groove (303). An insulating strip (305) is clamped and installed at the top end of the extrusion sealing plate (304). Support springs (306) are evenly and fixedly installed on the bottom surface of the extrusion sealing plate (304). An exchange hole (307) is formed on the top surface of the heat-insulating housing (1) corresponding to the insulating strip (305). A leakage hole (308) is formed on the bottom surface of the heat-insulating housing (1) corresponding to the exchange hole (307). A negative pressure hole (309) is formed on the bottom surface of the conveying pipe (302). A heat-resistant soft rubber ring (310) is embedded in the negative pressure hole (309). A rotating handle (311) is welded to one end of the conveying pipe (302); The other ends of the conveying pipes (302) all penetrate through a collection box (312). A filter frame (313) is installed through one end of the collection box (312). Vacuum pumps (314) are symmetrically installed at one end of the collection box (312) away from the conveying pipes (302).

7. The energy-saving and environment-friendly waste heat recovery heat exchange system according to claim 6, characterized in that: The end face of the extrusion sealing plate (304) is in a U-shaped configuration. The top surface edge of the insulating strip (305) has rounded corners. The end face of the rotating handle (311) is a combination of a triangle and a rectangle.

8. The energy-saving and environment-friendly waste heat recovery heat exchange system according to claim 6, characterized in that: The exchange hole (307) and the leakage hole (308) have the same size. The edge of the insulating strip (305) fits the inner edge of the exchange hole (307).

9. The energy-saving and environment-friendly waste heat recovery heat exchange system according to claim 6, characterized in that: The input ends of the vacuum pumps (314) are electrically connected to the output end of an external power supply. A clamping hole is formed in the collection box (312) corresponding to the vacuum pumps (314). The vacuum pumps (314) are embedded in the clamping holes.

10. The energy-saving and environment-friendly waste heat recovery heat exchange system according to claim 6, characterized in that: The end face of the filter frame (313) is in a C-shaped configuration, and the top surface and the bottom surface of the filter frame (313) respectively fit the top surface and the bottom surface of the collection box (312).

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