Non-woven fabric heat energy recovery energy-saving air supply device and circulating air supply system thereof

Abstract

The invention discloses a non-woven fabric heat energy recovery energy-saving air supply device and a circulating air supply system thereof, and relates to the technical field of heat energy recovery. The non-woven fabric heat energy recovery energy-saving air supply device comprises a dryer body and a steam recovery mechanism arranged at the top of the dryer body and used for recovering wet steam and converting steam energy into kinetic energy; the circulating air supply system comprises a steam recovery mechanism, and further comprises a linkage cleaning mechanism which is arranged on one side of the steam recovery mechanism and can conduct linkage with kinetic energy of the steam recovery mechanism to achieve automatic cleaning. The non-woven fabric heat energy recovery energy-saving air supply device and the circulating air supply system thereof are provided with the steam recovery mechanism and the linkage cleaning mechanism; through cooperation of the steam recovery mechanism and the linkage cleaning mechanism, the filter screen can continuously rotate and can be automatically cleaned, so that regular shutdown of equipment caused by regular manual cleaning is not needed, the maintenance cost is reduced, and the production efficiency of non-woven fabrics is improved due to the fact that shutdown of the equipment is not needed; and the operation stability of the equipment can be ensured due to automatic cleaning.

Description

Technical Field

[0001] This invention relates to the field of heat energy recovery technology, specifically to a nonwoven fabric heat energy recovery energy-saving air supply device and its circulating air supply system. Background Technology

[0002] A heat recovery and energy-saving air supply device for nonwoven fabrics and its circulating air supply system is a heat recovery device designed for nonwoven fabric production systems. This type of device generates hot and humid water vapor when wet spunlace fabric is quickly dried in a dryer. Previously, this vapor was directly discharged. Now, a water vapor recovery device is installed to spray the hot and humid water vapor directly onto the wet spunlace fabric that has just passed through the dryer, achieving a preheating and drying effect.

[0003] For example, CN211400914U discloses a heat recovery system in a nonwoven fabric production system. The key technical points of this system are: it includes a machine body and a dustproof mechanism; casters are fixedly connected to both ends of the bottom of the machine body; a cabinet door is fixedly connected to the front surface of the machine body; an electrical control panel is fixedly connected to the front top of the machine body; function buttons are fixedly connected to the front surface of the electrical control panel; heat dissipation vents are provided on both sides of the machine body; the dustproof mechanism includes a dustproof plate installed inside the heat dissipation vents; a bearing is fixedly connected to the inner wall of the heat dissipation vent; the dustproof plate and the inner wall of the heat dissipation vent are perpendicular to each other; the dustproof plate covers and is fixedly fixed to the outside of the heat dissipation vent. Through the designed dustproof plate, the dustproof plate covers the heat dissipation vent to prevent external impurities from entering the machine body; the dustproof plate rotates and tilts under the action of the fan via the bearing without affecting the normal heat dissipation of the machine body.

[0004] In the nonwoven fabric production system, hydroentangling is used for manufacturing. During heat recovery, the wet nonwoven fabric enters a dryer for drying. The steam discharged from the dryer is then recycled through fans and pipes to the wet hydroentangled fabric for pre-drying. Simultaneously, the heat from the steam heats the wet hydroentangled fabric, thus improving the drying efficiency. However, because nonwoven fabric production utilizes hydroentangling, which involves spraying the fiber web with multiple micro-jet water jets, the water jets, after passing through the web, are rebounded by the support curtain and re-enter the web. In a nonwoven fabric, fibers undergo displacement, interpenetration, entanglement, and cohesion under the hydraulic action of high-speed water jets in different directions, thus reinforcing the fabric. However, during the fine water jetting of nonwoven fabric, some fabric fibers may remain on the fabric. This means that when the nonwoven fabric is dried in a wet state and then enters the dryer, the steam recovered by the fan will contain some fibers. These fibers can become entangled on the impeller blades of the fan, disrupting the impeller's balance and reducing the fan's lifespan. Although filters are currently installed in the pipes to filter the fibers, these filters will also accumulate fibers over time. If they are not cleaned regularly, it will affect the efficiency of the fan in recovering steam.

[0005] To address the aforementioned issues, there is an urgent need for innovative design based on the existing nonwoven fabric heat recovery energy-saving air supply device and its circulating air supply system. Summary of the Invention

[0006] The present invention addresses the problem of overly simplistic solutions in existing technologies by providing a significantly different solution. Specifically, the present invention aims to provide a nonwoven fabric heat recovery energy-saving air supply device and its circulating air supply system, thereby solving the problem mentioned in the background technology that relying solely on filters can only solve the fiber problem in the short term, but requires periodic disassembly and cleaning of the filters.

[0007] To achieve the above objectives, the present invention provides the following technical solution: a nonwoven fabric heat energy recovery energy-saving air supply device and its circulating air supply system, including a dryer body, a steam recovery mechanism set on the top of the dryer body for recovering humid steam and converting steam energy into kinetic energy, and a linkage cleaning mechanism set on one side of the steam recovery mechanism and linked with the kinetic energy of the steam recovery mechanism for automatic cleaning. The steam recovery mechanism includes a fan body installed on the top of the dryer body. Both the output end and the input end of the fan body are connected to heat recovery pipes. A steam diversion trough is provided on the top of one side of the inner wall of the heat recovery pipe. One end of the steam diversion trough is connected to a pressurizing capillary tube, and one end of the pressurizing capillary tube is connected to a conversion chamber. The linkage cleaning mechanism includes a filter screen installed on the inner wall of the heat energy recovery pipe, a turntable movably installed on one side of the conversion chamber, and a steam diversion trough movably installed at the bottom of the turntable.

[0008] Preferably, air outlet ducts are connected to both sides of the bottom of the inner wall of the conversion chamber. One end of the air outlet duct is connected to a piston chamber. A piston rod is movably installed on the inner wall of the piston chamber. A connecting rod is movably connected to one end of the piston rod. A top block is installed on one side of the outer wall of the connecting rod. A guide block is movably installed on the inner wall of the conversion chamber. A conversion rod is connected to one side of the guide block. A linkage rod is movably installed on one side of the air outlet duct.

[0009] Preferably, the turntable is movably connected to one end of the connecting rod, a rotating rod is connected to the bottom of the turntable, a pulley is movably mounted on the outer wall of the rotating rod, a belt is wound around the outer wall of the pulley, a power wheel is connected to one end of the belt, an exhaust port is connected to the bottom of the inner wall of the conversion chamber, an exhaust nozzle is connected to one end of the exhaust port, and a recovery chamber is provided at the bottom of the filter screen.

[0010] Preferably, one end of the linkage rod is attached to one end of the top block, and the other end of the linkage rod is movably connected to the outer wall of the conversion rod.

[0011] Preferably, the inner wall of the guide block is provided with a cavity, and the diameter of the guide block cavity is adapted to the diameter between the exhaust port and the air outlet duct.

[0012] Preferably, the filter screen has a disc-shaped three-dimensional view, and the outer wall of the filter screen is sandwiched between the inner wall of the heat recovery pipe.

[0013] Preferably, the filter screen is movably installed, and the filter screen is connected to the drive wheel via a coupling.

[0014] Preferably, the bottom of the exhaust nozzle is aligned with one side of the top of the outer wall of the filter screen, and the recovery chamber is aligned with the exhaust nozzle.

[0015] Preferably, the inner wall of the steam diversion channel is provided with a cavity, and the cavity of the steam diversion channel is connected to one end of the pressurizing capillary tube.

[0016] Preferably, one end of the steam diversion channel is conical, and the diameter of one end of the steam diversion channel is adapted to the diameter of one end of the pressurizing capillary tube.

[0017] Compared with the prior art, the beneficial effects of the present invention are: 1. This invention enables the filter screen to rotate continuously and be automatically cleaned through the cooperation of a steam recovery mechanism and a linkage cleaning mechanism. Although existing technologies have added filters to filter fibers in steam, in practice, the outer wall of the filter screen easily becomes covered with fibers, requiring regular manual cleaning. However, since pipelines are generally closed, manual cleaning is quite troublesome. This invention can switch modes by rotating the filter screen and push a small portion of the steam back to the outer wall of the filter screen to clean it. This eliminates the need for regular manual cleaning and timed shutdowns, reducing maintenance costs and increasing the production efficiency of nonwoven fabrics. Furthermore, the automatic cleaning ensures the stability of the equipment operation, thereby increasing the equipment's service life and further reducing maintenance costs.

[0018] 2. This invention utilizes the disc-shaped structure of the filter screen, ensuring that the entire circumference of the screen can participate in fiber interception when steam flows through the pipe. Compared to the limitation of traditional flat filters that only filter from one side, the disc-shaped structure increases the effective filtration area to the entire circumference, avoiding the problem of sudden increase in wind resistance caused by local blockage. During the continuous rotation of the filter screen, the filtration surfaces of each area alternately enter the steam flow channel in sequence, avoiding the blockage caused by local fiber accumulation in traditional fixed filters. The rotation mechanism will cyclically switch to the back-blowing position of the exhaust nozzle, removing fibers through steam back-blowing. At the same time, a new clean surface enters the filtration area, ensuring that the entire circumference of the filter screen is always in a state of filtration without dead angles, effectively preventing the problem of uneven wind resistance caused by local blockage, and the blown-out fibers can be collected for secondary processing. Attached Figure Description

[0019] Figure 1 This is a schematic diagram of the overall structure of the present invention.

[0020] Figure 2 This is a schematic diagram of the steam recovery mechanism and the linkage cleaning mechanism of the present invention.

[0021] Figure 3 This is a schematic diagram of the location and structure of the steam diversion channel of the present invention.

[0022] Figure 4 This is a schematic diagram showing the position and structure of the exhaust port and exhaust nozzle of the present invention.

[0023] Figure 5 This is a cross-sectional view of the internal structure of the steam recovery mechanism of the present invention; Figure 6 This is a schematic diagram of the linkage cleaning mechanism of the present invention; Figure 7 This is a cross-sectional view of the internal structure of the steam diversion tank and heat recovery pipeline of the present invention; Figure 8This is a schematic diagram of the structure of the linkage rod, connecting rod, and conversion rod of the present invention; Figure 9 This is a schematic diagram of the exhaust nozzle, filter screen, and recovery chamber structure of the present invention; Figure 10 This is a schematic diagram of the piston rod, connecting rod, and turntable of the present invention.

[0024] In the diagram: 1. Dryer body; 2. Steam recovery mechanism; 201. Fan body; 202. Heat recovery pipeline; 203. Steam diversion tank; 204. Pressurization tube; 205. Conversion chamber; 206. Air outlet duct; 207. Piston chamber; 208. Piston rod; 209. Connecting rod; 210. Top block; 211. Linkage rod; 212. Conversion rod; 213. Guide block; 3. Linkage cleaning mechanism; 301. Turntable; 302. Rotating rod; 303. Pulley; 304. Belt; 305. Power wheel; 306. Filter screen; 307. Exhaust port; 308. Exhaust nozzle; 309. Recovery chamber. Detailed Implementation

[0025] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0026] Please see Figures 1 to 10 The present invention provides a technical solution: a nonwoven fabric heat energy recovery energy-saving air supply device and its circulating air supply system, including a dryer body 1, a steam recovery mechanism 2 set on the top of the dryer body 1 for recovering humid steam and converting steam energy into kinetic energy, and a linkage cleaning mechanism 3 set on one side of the steam recovery mechanism 2 and linked with the kinetic energy of the steam recovery mechanism 2 for automatic cleaning. The steam recovery mechanism 2 includes a fan body 201 installed on the top of the dryer body 1. Both the output end and the input end of the fan body 201 are connected to a heat recovery pipe 202. A steam diversion channel 203 is provided on the top of one side of the inner wall of the heat recovery pipe 202. One end of the steam diversion channel 203 is connected to a pressurizing capillary tube 204, and one end of the pressurizing capillary tube 204 is connected to a conversion chamber 205. The linkage cleaning mechanism 3 includes a filter screen 306 installed on the inner wall of the heat energy recovery pipe 202, a turntable 301 movably installed on one side of the conversion chamber 205, and a steam diversion trough 203 movably installed at the bottom of the turntable 301.

[0027] In this embodiment, the steam recovery mechanism 2 and the linkage cleaning mechanism 3 can generally convert the kinetic and thermal energy of steam into kinetic energy, so that the steam recovery mechanism 2 can drive the filter screen 306 to rotate, and the linkage cleaning mechanism 3 can spray steam onto the filter screen 306 to automatically clean the filter screen 306 (the principle of the steam recovery mechanism 2 is similar to that of a steam engine, and its purpose is to drive the filter screen 306 to rotate periodically, while the linkage cleaning mechanism 3 can be linked with the steam discharged by the steam recovery mechanism 2 to clean the filter screen 306).

[0028] Both sides of the bottom of the inner wall of the conversion chamber 205 are connected to air outlet ducts 206. One end of the air outlet duct 206 is connected to a piston chamber 207. A piston rod 208 is movably installed on the inner wall of the piston chamber 207. One end of the piston rod 208 is movably connected to a connecting rod 209. A top block 210 is installed on one side of the outer wall of the connecting rod 209. A guide block 213 is movably installed on the inner wall of the conversion chamber 205. A conversion rod 212 is connected to one side of the guide block 213. A linkage rod 211 is movably installed on one side of the air outlet duct 206.

[0029] In this embodiment, the nonwoven fabric is dried using the dryer body 1. The hot, humid steam generated during drying is discharged from the heat recovery pipe 202 by the activation of the fan body 201 and its coordination with the heat recovery pipe 202. During the intake of the hot, humid steam, fibers may be drawn into the fan body 201. At this time, the filter screen 306, which is sandwiched between the inner wall of the heat recovery pipe 202, filters the fibers. The hot, humid steam passes through the fan body 201... When the steam enters the inner wall of the pressure tube 204, a small portion of it will be guided by the steam diversion channel 203 to the pressure tube 204. Since one end of the steam diversion channel 203 is conical and the diameter of one end of the steam diversion channel 203 is matched with the diameter of the pressure tube 204, when the hot steam enters the inner wall of the pressure tube 204, the pressure of the hot steam increases and the flow rate increases due to the smaller space (the steam itself carries heat, and its pressure will increase after entering the narrow space, and the flow rate of the steam will increase after the pressure increases).

[0030] Turntable 301 is movably connected to one end of connecting rod 209. Turntable 301 is connected to a rotating rod 302 at its bottom. A pulley 303 is movably mounted on the outer wall of rotating rod 302. A belt 304 is wound around the outer wall of pulley 303. One end of belt 304 is connected to a drive wheel 305. An exhaust port 307 is connected to the bottom of the inner wall of conversion chamber 205. An exhaust nozzle 308 is connected to one end of exhaust port 307. A recovery chamber 309 is provided at the bottom of filter screen 306.

[0031] In this embodiment, the hot and humid steam is then discharged into the inner wall of the conversion chamber 205 through the pressurized capillary tube 204. Initially, one end of the piston rod 208 on the inner wall of the conversion chamber 205 is located at the air outlet duct 206 on the bottom side of the inner wall of the conversion chamber 205. After the hot and humid steam is discharged into the inner wall of the conversion chamber 205, it is discharged into the piston chamber 207 through the air outlet duct 206 on the bottom side of the inner wall of the conversion chamber 205. After the hot and humid steam is discharged, the inner wall of the piston chamber 207 will squeeze the piston rod 208 to one side of the inner wall of the piston chamber 207. When the piston rod 208 slides, one end of it will drive the top block 210 to rotate. Since one end of the top block 210 is connected to one end of the piston rod 208, and the piston rod... 208 is further limited by the piston chamber 207, which causes one end of the top block 210 to rotate slightly. There are two linkage rods 211. When one end of the top block 210 rotates, the top block 210 will drive one of the linkage rods 211 to rotate. Because the other end of the linkage rod 211 is movably connected to the outer wall of the conversion rod 212, when the linkage rod 211 rotates, it will drive the conversion rod 212 to move to the other side on the inner wall of the conversion chamber 205. At this time, the guide block 213 will also move synchronously (similar to the principle of a steam engine, using the blower body 201 as a continuous active energy source, so that the steam has an initial suction force, and then forms a closed loop through the reciprocating cycle of the steam recovery mechanism 2).

[0032] One end of the linkage rod 211 is attached to one end of the top block 210, and the other end of the linkage rod 211 is movably connected to the outer wall of the conversion rod 212.

[0033] In this embodiment, when one end of the top block 210 rotates, the top block 210 will drive one of the linkage rods 211 to rotate. Since the other end of the linkage rod 211 is movably connected to the outer wall of the conversion rod 212, when the linkage rod 211 rotates, it will drive the conversion rod 212 to move to the other side on the inner wall of the conversion chamber 205. At this time, the guide block 213 will also move synchronously.

[0034] The inner wall of the guide block 213 is provided with a cavity, and the diameter of the cavity of the guide block 213 is adapted to the diameter between the exhaust port 307 and the air outlet duct 206.

[0035] In this embodiment, since the diameter of the guide block 213 cavity is the sum of the diameters between the air outlet duct 206 and the piston chamber 207, when the guide block 213 moves to the other side, it will block the passage of the air outlet duct 206 on one side of the conversion chamber 205. Then, the hot and humid steam entering the conversion chamber 205 will be discharged from the air outlet duct 206 on the other side and enter the inner wall of the piston chamber 207 to push the piston rod 208 to move to the other side. This cycle repeats, which can drive the connecting rod 209 to rotate continuously. When the connecting rod 209 rotates, its other end will drive the turntable 301 to rotate.

[0036] The three-dimensional view of filter 306 is disc-shaped, and the outer wall of filter 306 is sandwiched between the inner wall of heat recovery pipe 202.

[0037] In this embodiment, when the turntable 301 rotates, it drives the rotating rod 302 to rotate. When the rotating rod 302 rotates, it drives the pulley 303 to rotate. When the pulley 303 rotates, it drives the filter screen 306 to rotate via the belt 304. Since the filter screen 306 filters out some fibers, these fibers will adhere to the outer wall of the filter screen 306. By rotating the filter screen 306, the side with fibers can be rotated to the outside. (The disc-shaped design of the filter screen 306 is because the steam in the heat recovery pipe 202 is continuously drawn in, so that the filter screen 306 can continuously filter the fibers in the steam in the heat recovery pipe 202 when it rotates.)

[0038] The filter screen 306 is movable and is connected to the drive wheel 305 via a coupling.

[0039] In this embodiment, when the turntable 301 rotates, it drives the rotating rod 302 to rotate. When the rotating rod 302 rotates, it drives the pulley 303 to rotate. When the pulley 303 rotates, it drives the filter screen 306 to rotate via the belt 304.

[0040] The bottom of the exhaust nozzle 308 is aligned with one side of the top of the outer wall of the filter screen 306, and the recovery chamber 309 is aligned with the exhaust nozzle 308.

[0041] In this embodiment, since the bottom of the exhaust nozzle 308 is aligned with one side of the outer wall of the filter screen 306, hot and humid air can be discharged to the outer wall of the filter screen 306, allowing the hot and humid air to blow out from the opposite direction and wash away the fibers on the outer wall of the filter screen 306. The fallen fibers will be discharged into the recycling bin 309, and the user can periodically remove the fibers from the recycling bin 309 for centralized processing.

[0042] The inner wall of the steam diversion channel 203 is provided with a cavity, and the cavity of the steam diversion channel 203 is connected to one end of the pressurization capillary tube 204.

[0043] In this embodiment, when the hot steam rushes into the inner wall of the pressurizing capillary tube 204, the pressure of the hot steam increases and the flow rate increases due to the reduced space. Then the hot steam will be discharged into the inner wall of the conversion chamber 205 through the pressurizing capillary tube 204.

[0044] One end of the steam diversion channel 203 is conical, and the diameter of one end of the steam diversion channel 203 is matched with the diameter of one end of the pressurizing capillary tube 204.

[0045] In this embodiment, since one end of the steam diversion channel 203 is conical and the diameter of one end of the steam diversion channel 203 is matched with the diameter of the pressurizing capillary tube 204, when the hot steam flows into the inner wall of the pressurizing capillary tube 204, the pressure of the hot steam becomes stronger and the flow rate becomes faster due to the smaller space.

[0046] Working Principle: When using this nonwoven fabric heat recovery energy-saving air supply device and its circulating air supply system, the nonwoven fabric is first dried through the dryer body 1. The hot steam from the drying process is discharged from the heat recovery pipe 202 by the start of the fan body 201 and its cooperation with the heat recovery pipe 202. When the hot steam is drawn in, fibers in the hot steam may be drawn into the fan body 201. At this time, the filter screen 306 is sandwiched between the inner wall of the heat recovery pipe 202 and can filter the fibers. During filtration, when the hot, humid steam passes through the inner wall of the blower body 201, a small portion is guided by the steam diversion channel 203 to the pressurizing capillary tube 204. Since one end of the steam diversion channel 203 is conical and its diameter matches the diameter of the pressurizing capillary tube 204, the pressure and flow rate of the hot, humid steam increase as it enters the inner wall of the pressurizing capillary tube 204 due to the reduced space. The hot, humid steam then exits through the pressurizing capillary tube 204 into the inner wall of the conversion chamber 205. In the initial state... One end of the piston rod 208 on the inner wall of the conversion chamber 205 is located at the air outlet duct 206 on the bottom side of the inner wall of the conversion chamber 205. After the hot and humid steam is discharged into the inner wall of the conversion chamber 205, it will be discharged into the piston chamber 207 through the air outlet duct 206 on the bottom side of the inner wall of the conversion chamber 205. After the hot and humid steam is discharged, the inner wall of the piston chamber 207 will squeeze the piston rod 208 to one side of the inner wall of the piston chamber 207. When the piston rod 208 slides, one end of it will drive the top block 210 to rotate. Since one end of the top block 210 is connected to the piston rod 208... The piston rod 208 is limited by the piston chamber 207, which causes one end of the top block 210 to rotate slightly. There are two linkage rods 211. When one end of the top block 210 rotates, the top block 210 will drive one of the linkage rods 211 to rotate. Because the other end of the linkage rod 211 is movably connected to the outer wall of the conversion rod 212, the rotation of the linkage rod 211 will drive the conversion rod 212 to move to the other side on the inner wall of the conversion chamber 205. At this time, the guide block 213 will also move synchronously. Secondly, because the diameter of the guide block 213 cavity is the sum of the diameters between the air outlet duct 206 and the piston chamber 207, when the guide block 213 moves to the other side, it will block the passage of the air outlet duct 206 on one side of the conversion chamber 205. The hot, humid steam entering the conversion chamber 205 will then be discharged from the other side of the air outlet duct 206 and enter the inner wall of the piston chamber 207, pushing the piston rod 208 to move to the other side. This cycle repeats, driving the connecting rod 209 to rotate continuously. Meanwhile, the connecting rod 209... When 09 rotates, its other end will drive the turntable 301 to rotate. When the turntable 301 rotates, it will drive the rotating rod 302 to rotate. When the rotating rod 302 rotates, it will drive the pulley 303 to rotate. When the pulley 303 rotates, it will drive the filter screen 306 to rotate through the belt 304. Since the filter screen 306 will filter out some fibers, these fibers will stick to the outer wall of the filter screen 306. By rotating the filter screen 306, the side with fibers can be rotated to the outside. Finally, due to the diameter of the guide block 213, the hot and humid air discharged into the piston chamber 207 will be discharged back into the other side of the air outlet duct 206. The air is discharged back into the inner wall of the conversion chamber 205 through the air outlet duct 206. Due to the limitation of the guide block 213, the air outlet duct 206 will discharge the hot and humid air to the exhaust port 307 when it discharges the hot and humid air. The exhaust port 307 will then discharge the hot and humid air through the exhaust nozzle 308. Because the bottom of the exhaust nozzle 308 is aligned with one side of the outer wall of the filter screen 306, the hot and humid air can be discharged to the outer wall of the filter screen 306. This allows the hot and humid air to be blown out from the opposite direction to wash away the fibers on the outer wall of the filter screen 306. The fallen fibers will be discharged into the recycling chamber 309. Users can periodically remove the fibers from the recycling chamber 309 for centralized processing.

[0047] Although the present invention has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present invention should be included within the protection scope of the present invention.

Claims

1. A nonwoven fabric heat energy recovery energy-saving air supply device and its circulating air supply system, comprising a dryer body (1), and a steam recovery mechanism (2) disposed on the top of the dryer body (1) for recovering humid steam and converting steam energy into kinetic energy, characterized in that: It also includes a linkage cleaning mechanism (3) that is set on one side of the steam recovery mechanism (2) and can automatically clean by linking with the kinetic energy of the steam recovery mechanism (2); The steam recovery mechanism (2) includes a fan body (201) installed on the top of the dryer body (1). The output end and input end of the fan body (201) are both connected to a heat recovery pipe (202). A steam diversion groove (203) is provided on the top of one side of the inner wall of the heat recovery pipe (202). One end of the steam diversion groove (203) is connected to a pressurizing capillary tube (204). One end of the pressurizing capillary tube (204) is connected to a conversion chamber (205). The linkage cleaning mechanism (3) includes a filter screen (306) installed on the inner wall of the heat recovery pipe (202), a turntable (301) is movably installed on one side of the conversion chamber (205), and a steam diversion trough (203) is movably installed at the bottom of the turntable (301).

2. The nonwoven fabric heat recovery energy-saving air supply device and its circulating air supply system according to claim 1, characterized in that: Both sides of the bottom of the inner wall of the conversion chamber (205) are connected to air outlet pipes (206). One end of the air outlet pipe (206) is connected to a piston chamber (207). A piston rod (208) is movably installed on the inner wall of the piston chamber (207). One end of the piston rod (208) is movably connected to a connecting rod (209). A top block (210) is installed on one side of the outer wall of the connecting rod (209). A guide block (213) is movably installed on the inner wall of the conversion chamber (205). A conversion rod (212) is connected to one side of the guide block (213). A linkage rod (211) is movably installed on one side of the air outlet pipe (206).

3. The nonwoven fabric heat recovery energy-saving air supply device and its circulating air supply system according to claim 2, characterized in that: The turntable (301) is movably connected to one end of the connecting rod (209). A rotating rod (302) is connected to the bottom of the turntable (301). A pulley (303) is movably installed on the outer wall of the rotating rod (302). A belt (304) is wound around the outer wall of the pulley (303). A power wheel (305) is connected to one end of the belt (304). An exhaust port (307) is connected to the bottom of the inner wall of the conversion chamber (205). An exhaust nozzle (308) is connected to one end of the exhaust port (307). A recycling chamber (309) is provided at the bottom of the filter screen (306).

4. The nonwoven fabric heat recovery energy-saving air supply device and its circulating air supply system according to claim 2, characterized in that: One end of the linkage rod (211) is attached to one end of the top block (210), and the other end of the linkage rod (211) is movably connected to the outer wall of the conversion rod (212).

5. The nonwoven fabric heat recovery energy-saving air supply device and its circulating air supply system according to claim 3, characterized in that: The inner wall of the guide block (213) is provided with a cavity, and the diameter of the cavity of the guide block (213) is adapted to the diameter between the exhaust port (307) and the air outlet pipe (206).

6. The nonwoven fabric heat recovery energy-saving air supply device and its circulating air supply system according to claim 1, characterized in that: The filter (306) is disc-shaped in three-dimensional view, and the outer wall of the filter (306) is sandwiched between the inner wall of the heat recovery pipe (202).

7. The nonwoven fabric heat recovery energy-saving air supply device and its circulating air supply system according to claim 3, characterized in that: The filter screen (306) is movably installed, and the filter screen (306) is connected to the drive wheel (305) via a coupling.

8. The nonwoven fabric heat recovery energy-saving air supply device and its circulating air supply system according to claim 3, characterized in that: The bottom of the exhaust nozzle (308) is aligned with one side of the top of the outer wall of the filter screen (306), and the recovery chamber (309) is aligned with the exhaust nozzle (308).

9. The nonwoven fabric heat recovery energy-saving air supply device and its circulating air supply system according to claim 1, characterized in that: The inner wall of the steam diversion channel (203) is provided with a cavity, and the cavity of the steam diversion channel (203) is connected to one end of the pressurization capillary tube (204).

10. The nonwoven fabric heat recovery energy-saving air supply device and its circulating air supply system according to claim 1, characterized in that: One end of the steam diversion channel (203) is conical, and the diameter of one end of the steam diversion channel (203) is adapted to the diameter of one end of the pressurizing capillary tube (204).

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