A waste heat recovery device and method for air compressor

Abstract

The present invention discloses a waste heat recovery device and method for an air compressor, which relates to the technical field of air compressors, including a water tank, a drain pipe is connected through and connected to the lower side of one side of the water tank, and a valve is arranged on the outer side of the drain pipe, and a cover plate is movably connected to the top of the water tank, and a heat exchange tube is arranged inside the water tank, and also includes: a rotating assembly, which is arranged on both sides of the water tank; lubricating oil can be passed into the inside of the rotating tube to drive the heat exchange tube to rotate, thereby increasing the contact area between the heat exchange tube and the cooling water in the water tank, breaking the fluid boundary layer, and increasing the contact frequency between the cooling water and the heat exchange tube, thereby improving the heat exchange efficiency, and the cooling water in the water tank can be slowly rotated, which helps to even out the cooling water temperature and maintain the heat exchange efficiency. Moreover, the rotation of the heat exchange tube can prevent impurities and scale in the cooling water from adhering to the heat exchange tube through physical scouring, reduce scaling on the outside of the heat exchange tube, and avoid affecting the heat exchange efficiency.

Description

Technical Field

[0001] The present invention relates to the technical field of air compressors, and in particular to a waste heat recovery device and method for air compressors. Background Art

[0002] An air compressor is a device used to compress gas. The structure of an air compressor is similar to that of a water pump. Most air compressors are reciprocating piston type, with rotating blades or rotating screws. They can be divided into three categories based on their working principles: volumetric, dynamic (speed or turbine), and thermal compressors.

[0003] For example, in a waste heat recovery device for an air compressor with publication number CN220893057U, when the circulating copper tube needs to be disassembled and replaced, the button is pressed to rotate the rotating rod, thereby driving the outer wall of the rotating shaft attached to the fixed block to move, thereby driving the clamping ring to move, and at the same time squeezing the connecting spring so that the clamping ring no longer clamps and limits one end of the circulating copper tube, thereby taking out the circulating copper tube. When the new circulating copper tube is installed and stabilized, the outer wall of the circulating copper tube is clamped by the clamping ring and the connecting spring, which facilitates the stability of the circulating copper tube, and at the same time facilitates the disassembly and replacement of the circulating copper tube, reducing the tediousness of replacing the circulating copper tube. However, in actual use, the heat exchange tube remains stationary in the cooling water, and the contact area between the heat exchange tube and the cooling water is limited, which makes the waste heat recovery efficiency of the air compressor low. Moreover, the heat exchange tube remains stationary in the cooling water, and the outer wall of the heat exchange tube is prone to scaling, which also affects the heat exchange efficiency of the heat exchange tube, and there are certain usage defects.

[0004] Therefore, we propose a waste heat recovery device and method for an air compressor in order to solve the above-mentioned problems. Summary of the invention

[0005] The object of the present invention is to provide a waste heat recovery device and method for an air compressor, so as to solve the problem proposed in the above-mentioned background technology that the heat exchange tube remains stationary in the cooling water, the contact area between the heat exchange tube and the cooling water is limited, so that the waste heat recovery efficiency of the air compressor is low, and the heat exchange tube remains stationary in the cooling water, the outer wall of the heat exchange tube is prone to scaling, which also affects the heat exchange efficiency of the heat exchange tube.

[0006] To achieve the above object, the present invention provides the following technical solution: a waste heat recovery device for an air compressor, comprising a water tank, a drain pipe is connected through one side of the water tank, a valve is arranged on the outer side of the drain pipe, a cover plate is movably connected to the top of the water tank, and a heat exchange pipe is arranged inside the water tank;

[0007] Also includes:

[0008] The rotating assembly is arranged on both sides of the water tank;

[0009] The rotating tube is symmetrically rotatably connected to the two sides of the water tank, the end of the rotating tube on one side away from the water tank is penetrated and connected with a guide tube, and the end of the guide tube away from the rotating tube is penetrated and connected with a mounting tube, and the end of the mounting tube away from the guide tube is fixedly installed with a rotating joint, and at the same time, a rotating shaft is rotatably connected to the side of the rotating tube close to the guide tube, and a plurality of arc plates are fixedly installed on the outside of the rotating shaft;

[0010] A fixed frame is fixedly installed on the outer side of one rotating tube, the fixed frame is rotatably connected to the rotating shaft, and one end of the rotating shaft passes through the rotating tube and the fixed frame and is fixedly installed with a first rotating gear, and the other side of the water tank is located on the outer side of one rotating tube and a fixed plate is fixedly installed, and the rotating tube is rotatably connected to the fixed plate, and a plurality of teeth are fixedly installed on one side of the fixed plate, and the first rotating gear is meshed with the plurality of teeth.

[0011] Preferably, a mounting frame is fixedly installed on the outside of the other side of the rotating tube on one side, and the other end of the rotating shaft passes through the rotating tube and is fixedly installed with a driving gear, and a rotating rod is fixedly installed on the outside of the rotating tube close to the driving gear, and one end of the rotating rod is rotationally connected to the rotating tube, and the other end of the rotating rod is rotationally connected to the mounting frame, and a driven gear is fixedly installed on the outside of the rotating rod, and the driven gear is meshingly connected to the driving gear.

[0012] By adopting the above technical solution, the rotating shaft can drive the rotating rod to rotate while rotating, so that the rotating shaft and the rotating rod rotate synchronously in opposite directions.

[0013] Preferably, a first pulley is fixedly installed on the outer side of the rotating rod close to the driven gear, and a connecting shaft is rotatably connected to the inner side of the mounting frame, and a second pulley is fixedly installed on one end of the connecting shaft, and the second pulley is rotatably connected to the first pulley through a belt.

[0014] By adopting the above technical solution, the rotation of the rotating rod can drive the connecting shaft to rotate, so that the connecting shaft and the rotating shaft can rotate synchronously in opposite directions.

[0015] Preferably, one end of the connecting shaft away from the second pulley passes through the mounting frame and is fixedly mounted with a second rotating gear, and the second rotating gear is meshedly connected with a plurality of teeth, and the first rotating gear and the second rotating gear are symmetrically arranged.

[0016] By adopting the above technical solution, the first rotating gear and the second rotating gear can rotate in synchronous directions, thereby driving the rotating tube to rotate smoothly.

[0017] Preferably, a fixing ring is fixedly installed on one side of the two rotating tubes close to the inner side of the heat exchange tube, and rubber rings are fixedly installed on both ends of the heat exchange tube, and positioning frames are symmetrically installed on the outside of the two rotating tubes close to the heat exchange tube, and at the same time, the interiors of the two positioning frames are threadedly connected with screws, and a knob is fixedly installed on one end of the screw, and the ends of the two screws close to each other are movably connected with an annular plate.

[0018] By adopting the above technical solution, the annular plate can be moved, and the rubber ring can be positioned with the help of the annular plate.

[0019] Preferably, sealing gaskets are fixedly mounted on one side of the two annular plates close to the heat exchange tube.

[0020] By adopting the above technical solution, the sealing gasket on the annular plate is closely fitted to the heat exchange tube, thereby improving the sealing performance of the heat exchange tube connection.

[0021] Preferably, positioning rods are symmetrically installed on one side of the two annular plates away from the heat exchange tubes, and the two positioning rods are slidably connected to the positioning frame.

[0022] By adopting the above technical solution, the movement of the annular plate is limited to prevent the annular plate from rotating together with the screw.

[0023] Preferably, the cross-sectional area of ​​the middle portion of the guide tube is smaller than the cross-sectional areas of both ends.

[0024] By adopting the above technical solution, the lubricating oil flows from the large aperture to the small aperture when passing through the guide tube. According to the Bernoulli equation, when the fluid flows, the increase in flow velocity will cause the pressure of the fluid to decrease. When the liquid flows from the large aperture to the small aperture, the continuity equation (A1V1=A2V2) requires the flow velocity to increase (A represents the cross-sectional area, and V represents the flow velocity). According to the Bernoulli equation, the pressure of the fluid will decrease accordingly. This pressure reduction can make it easier for the fluid to pass through the small aperture, thereby maintaining a higher flow rate.

[0025] Compared with the prior art, the beneficial effects of the present invention are as follows: the device and method for recovering waste heat from an air compressor has rotating components symmetrically arranged on both sides of the water tank, and can drive the heat exchange tubes to rotate by passing lubricating oil into the interior of the rotating tubes, thereby increasing the contact area between the heat exchange tubes and the cooling water in the water tank, breaking the fluid boundary layer, and increasing the contact frequency between the cooling water and the heat exchange tubes, thereby improving the heat exchange efficiency, and can slowly rotate the cooling water in the water tank, which helps to even out the cooling water temperature and maintain the heat exchange efficiency. The rotation of the heat exchange tubes can prevent impurities and scale in the cooling water from adhering to the heat exchange tubes through physical flushing, reduce scaling on the outside of the heat exchange tubes, and avoid affecting the heat exchange efficiency;

[0026] 1. Rotating components are symmetrically arranged on both sides of the water tank. When the air compressor recovers waste heat from the lubricating oil during use, one end of the rotary joint is connected to the lubricating oil output pipe on the air compressor. The lubricating oil is passed into the rotary joint through the body of the air compressor, so that the lubricating oil is sprayed out through the mounting pipe and the guide pipe. After the lubricating oil is sprayed out through the guide pipe, the flow rate can be increased, so that it can impact the arc plate on the rotating shaft, and then the rotating shaft can be driven to rotate inside the rotating tube on one side. After the rotating shaft on one side rotates, it can be rotated on the fixed frame for support, so that the first rotating gear can be driven to rotate. After the first rotating gear rotates, it can contact and mesh with a number of teeth on the fixed plate to drive the rotating tube on one side to rotate, and then the heat exchange tube and the rotating tube on the other side can be driven to rotate, so that the heat exchange tube can rotate in the water tank. After the heat exchange tube rotates, the contact area with the cooling water in the water tank can be increased, the fluid boundary layer can be broken, and the contact frequency between the cooling water and the heat exchange tube can be increased, thereby improving the heat exchange efficiency. In addition, the cooling water in the water tank can be slowly rotated, which is helpful to uniformize the cooling water temperature and maintain the heat exchange efficiency. The rotation of the heat exchange tube can prevent impurities and scale in the cooling water from adhering to the heat exchange tube through physical flushing, reduce scaling on the outside of the heat exchange tube, and avoid affecting the heat exchange efficiency;

[0027] 2. The rotating shaft can drive the driving gear to rotate while rotating. After the driving gear rotates, it can drive the rotating rod to rotate between the rotating tube and the mounting frame on one side through the meshing driven gear. After the rotating rod rotates, it can drive the connecting shaft to rotate on the mounting frame through the rotation connection between the first pulley and the second pulley, thereby causing the second rotating gear to rotate. When the rotating shaft rotates, it can drive the first rotating gear and the second rotating gear to rotate synchronously in the opposite direction. The second rotating gear can also drive the rotating tube to rotate by meshing with the teeth. Through the symmetrical arrangement of the first rotating gear and the second rotating gear, the rotating tube can be driven to rotate smoothly through the first rotating gear and the second rotating gear, thereby avoiding the difficulty of the heat exchange tube to rotate due to the resistance of the cooling water, and ensuring that the heat exchange tube can rotate normally.

[0028] 3. When the heat exchange tube is damaged and the heat exchange tube is replaced, the two knobs are turned to drive the screw to rotate. The screw can be moved through the threaded connection with the positioning frame, and then the annular plate is driven to move. While the annular plate moves, it drives the positioning rod to slide on the positioning frame to limit the movement of the annular plate, so that the two annular plates are separated from each other. The rubber ring on the heat exchange tube can be pulled out, so that the heat exchange tube can be disassembled. When installing the heat exchange tube, the rubber rings at both ends of the heat exchange tube are respectively inserted into the inside of the two rotating tubes so that the rubber ring fits with the fixing ring. Then, the knob is turned to reset the annular plate so that one side of the annular plate squeezes the rubber ring and deforms the rubber ring, so that the annular plate fits tightly with the rubber ring, and the sealing gaskets on the two annular plates fit tightly with the heat exchange tube to avoid leakage, thereby facilitating the user to disassemble the heat exchange tube and replace the heat exchange tube, thereby improving convenience. BRIEF DESCRIPTION OF THE DRAWINGS

[0029] Figure 1 It is a schematic diagram of the front structure of the present invention;

[0030] Figure 2 This is a schematic diagram of the internal structure of the water tank of the present invention;

[0031] Figure 3 It is a schematic diagram of the three-dimensional structure of the wire tube of the present invention;

[0032] Figure 4 This is a schematic diagram of the three-dimensional structure of a rotating tube on one side of the present invention;

[0033] Figure 5 For the present invention Figure 4 A schematic diagram of the enlarged structure of the middle A area;

[0034] Figure 6 It is a schematic diagram of the structure of the rotating tube on one side of the present invention from another perspective;

[0035] Figure 7 For the present invention Figure 2 Schematic diagram of the enlarged structure of the middle B area;

[0036] Figure 8 It is a schematic diagram of the side structure of the annular plate of the present invention;

[0037] Fig. 9 It is a schematic diagram of the motion structure of the annular plate of the present invention.

[0038] In the figure: 1, water tank; 101, drain pipe; 102, cover plate; 103, heat exchange tube; 2, rotating assembly; 201, rotating tube; 202, guide tube; 203, mounting tube; 204, rotary joint; 205, rotating shaft; 206, arc plate; 207, fixing frame; 208, first rotating gear; 209, fixing plate; 210, teeth; 211, mounting frame; 212, driving gear; 213, rotating rod; 214, driven gear; 215, connecting shaft; 216, first pulley; 217, second pulley; 218, second rotating gear; 219, rubber ring; 220, fixing ring; 221, positioning frame; 222, screw; 223, annular plate; 224, knob; 225, sealing pad; 226, positioning rod. DETAILED DESCRIPTION

[0039] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on 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.

[0040] See also Figure 1-9 The present invention provides a technical solution: a waste heat recovery device for an air compressor, comprising a water tank 1, a drain pipe 101 is connected through one side of the water tank 1, a valve is provided on the outer side of the drain pipe 101, and a cover plate 102 is movably connected to the top of the water tank 1, and a heat exchange pipe 103 is provided inside the water tank 1;

[0041] Also includes:

[0042] The rotating assembly 2 is arranged on both sides of the water tank 1;

[0043] The rotating tube 201 is symmetrically connected to the two sides of the water tank 1. The end of the rotating tube 201 on one side away from the water tank 1 is penetrated by a guide tube 202, and the end of the guide tube 202 away from the rotating tube 201 is penetrated by a mounting tube 203, and the end of the mounting tube 203 away from the guide tube 202 is fixedly installed with a rotating joint 204, and at the same time, a rotating shaft 205 is rotatably connected to the side of the rotating tube 201 close to the guide tube 202, and a plurality of arc plates 206 are fixedly installed on the outside of the rotating shaft 205;

[0044] A fixing frame 207 is fixedly installed on one side of the outer side of the rotating tube 201, the fixing frame 207 is rotatably connected with the rotating shaft 205, and one end of the rotating shaft 205 passes through the rotating tube 201 and the fixing frame 207 and is fixedly installed with a first rotating gear 208, and a fixing plate 209 is fixedly installed on the other side of the water tank 1 outside the rotating tube 201, and the rotating tube 201 is rotatably connected with the fixing plate 209, and a plurality of teeth 210 are fixedly installed on one side of the fixing plate 209, and the first rotating gear 208 is meshedly connected with the plurality of teeth 210;

[0045] The cross-sectional area of ​​the middle portion of the guide tube 202 is smaller than the cross-sectional areas of both ends.

[0046] Embodiment 1: Figure 1-4 and Figure 6 As shown, when the air compressor is in use and recovers waste heat from the lubricating oil, one end of the rotary joint 204 is connected to the lubricating oil output pipe on the air compressor, and the lubricating oil is passed into the rotary joint 204 through the air compressor body, so that the lubricating oil is sprayed out through the mounting pipe 203 and the guide pipe 202. After the lubricating oil is sprayed out through the guide pipe 202, the flow rate can be increased, so that it can impact the arc plate 206 on the rotating shaft 205, and then the rotating shaft 205 can be driven to rotate inside the rotating tube 201 on one side. After the rotating shaft 205 on one side rotates, it can be rotated on the fixed frame 207 for support, so that the first The rotating gear 208 rotates, and after the first rotating gear 208 rotates, it can contact and mesh with several teeth 210 on the fixed plate 209 to drive the rotating tube 201 on one side to rotate, and then drive the heat exchange tube 103 and the rotating tube 201 on the other side to rotate, so that the heat exchange tube 103 can rotate in the water tank 1. After the heat exchange tube 103 rotates, the contact area with the cooling water in the water tank 1 can be increased, the fluid boundary layer can be broken, and the contact frequency between the cooling water and the heat exchange tube 103 can be increased, thereby improving the heat exchange efficiency. The cooling water in the water tank 1 can be slowly rotated, which helps to even out the cooling water temperature and maintain the heat exchange efficiency. In addition, the rotation of the heat exchange tube 103 can prevent impurities and scale in the cooling water from adhering to the heat exchange tube 103 through physical flushing, reduce scaling on the outside of the heat exchange tube 103, and avoid affecting the heat exchange efficiency.

[0047] A mounting frame 211 is fixedly installed on the outside of the other side of the rotating tube 201 on one side, and the other end of the rotating shaft 205 passes through the rotating tube 201 and is fixedly installed with a driving gear 212, and a rotating rod 213 is fixedly installed on the outside of the rotating tube 201 near the driving gear 212, and one end of the rotating rod 213 is rotatably connected to the rotating tube 201, and the other end of the rotating rod 213 is rotatably connected to the mounting frame 211, and a driven gear 214 is fixedly installed on the outside of the rotating rod 213, and the driven gear 214 is meshed and connected with the driving gear 212;

[0048] A first pulley 216 is fixedly installed on one side of the rotating rod 213 near the driven gear 214, and a connecting shaft 215 is rotatably connected to one side of the mounting frame 211, and a second pulley 217 is fixedly installed on one end of the connecting shaft 215, and the second pulley 217 is rotatably connected to the first pulley 216 through a belt;

[0049] One end of the connecting shaft 215 away from the second pulley 217 passes through the mounting frame 211 and is fixedly mounted with a second rotating gear 218 , and the second rotating gear 218 is meshed and connected with a plurality of teeth 210 , and the first rotating gear 208 and the second rotating gear 218 are symmetrically arranged.

[0050] Embodiment 2: Figure 4-6 As shown, the rotating shaft 205 can drive the driving gear 212 to rotate while rotating. After the driving gear 212 rotates, it can drive the rotating rod 213 to rotate between the rotating tube 201 on one side and the mounting frame 211 through the meshing driven gear 214. After the rotating rod 213 rotates, it can drive the connecting shaft 215 to rotate on the mounting frame 211 through the rotation connection of the first pulley 216 and the second pulley 217, thereby causing the second rotating gear 218 to rotate, so that the rotating shaft 205 can drive the first rotating gear 208 and the second rotating gear 218 to rotate synchronously in the opposite direction while rotating. The second rotating gear 218 can also drive the rotating tube 201 to rotate by meshing with the teeth 210. Through the symmetrical arrangement of the first rotating gear 208 and the second rotating gear 218, the rotating tube 201 can be driven to rotate smoothly by the first rotating gear 208 and the second rotating gear 218, thereby avoiding the difficulty of the heat exchange tube 103 to rotate due to the resistance of the cooling water, thereby ensuring that the heat exchange tube 103 can rotate normally.

[0051] A fixing ring 220 is fixedly installed on one side of the inner part of the two rotating tubes 201 close to the heat exchange tube 103, and a rubber ring 219 is fixedly installed on both ends of the heat exchange tube 103, and a positioning frame 221 is symmetrically installed on the outer part of the two rotating tubes 201 close to the heat exchange tube 103, and the inner part of the two positioning frames 221 is threadedly connected with a screw rod 222, and a knob 224 is fixedly installed on one end of the screw rod 222, and the ends of the two screw rods 222 close to each other are movably connected with an annular plate 223;

[0052] A sealing gasket 225 is fixedly installed on one side of the two annular plates 223 close to the heat exchange tube 103;

[0053] Positioning rods 226 are symmetrically installed on one side of the two annular plates 223 away from the heat exchange tube 103 , and the two positioning rods 226 are slidably connected to the positioning frame 221 .

[0054] Embodiment 3: Figure 7-9As shown, when the heat exchange tube 103 is damaged and needs to be replaced, the two knobs 224 are turned to drive the screw rod 222 to rotate. The screw rod 222 rotates and can move through the threaded connection with the positioning frame 221, thereby driving the annular plate 223 to move. When the annular plate 223 moves, it drives the positioning rod 226 to slide on the positioning frame 221, and limits the movement of the annular plate 223, so that the two annular plates 223 are separated from each other, and the rubber ring 219 on the heat exchange tube 103 can be pulled out, so that the heat exchange tube 103 can be disassembled. When the heat exchange tube 103 is installed, the replacement The rubber rings 219 at both ends of the heat pipe 103 are respectively inserted into the interior of the two rotating tubes 201, so that the rubber ring 219 fits with the fixing ring 220, and then the knob 224 is rotated to reset the annular plate 223, so that one side of the annular plate 223 and the rubber ring 219 squeeze the rubber ring 219 to deform, so that the annular plate 223 and the rubber ring 219 fit tightly, and the sealing gaskets 225 on the two annular plates 223 fit tightly with the heat exchange tube 103 to avoid leakage, thereby facilitating the user to disassemble the heat exchange tube 103 and replace the heat exchange tube 103, thereby improving convenience.

[0055] Working principle: When using the waste heat recovery device for air compressors, first, as shown in 1-9, one end of the rotary joint 204 is connected to the lubricating oil output pipe on the air compressor, and the lubricating oil is introduced into the rotary joint 204 through the air compressor body, so that the lubricating oil is sprayed out through the mounting tube 203 and the guide tube 202. After the lubricating oil is sprayed out through the guide tube 202, the flow rate can be increased, so that it can impact the arc plate 206 on the rotating shaft 205, and then the rotating shaft 205 can be driven to rotate inside the rotating tube 201 on one side. When the rotating shaft 205 on one side rotates After that, the first rotating gear 208 can be rotated on the fixing frame 207 for support, so that the first rotating gear 208 can be driven to rotate. After the first rotating gear 208 rotates, it can be engaged with a plurality of teeth 210 on the fixing plate 209 to drive the rotating tube 201 on one side to rotate, and then the heat exchange tube 103 and the rotating tube 201 on the other side can be driven to rotate, so that the heat exchange tube 103 can be rotated in the water tank 1. The rotating shaft 205 can drive the driving gear 212 to rotate while rotating. After the driving gear 212 rotates, it can drive the rotating rod 213 by engaging with the driven gear 214. The rotating tube 201 on one side rotates between the mounting frame 211. After the rotating rod 213 rotates, the connecting shaft 215 can be driven to rotate on the mounting frame 211 through the rotation connection of the first pulley 216 and the second pulley 217, thereby causing the second rotating gear 218 to rotate, so that the rotating shaft 205 can drive the first rotating gear 208 and the second rotating gear 218 to rotate synchronously in the opposite direction while rotating. The second rotating gear 218 can also drive the rotating tube 201 to rotate by meshing with the teeth 210. Through the symmetry of the first rotating gear 208 and the second rotating gear 218 The rotating tube 201 can be driven to rotate smoothly by the first rotating gear 208 and the second rotating gear 218, and the two knobs 224 are rotated to drive the screw rod 222 to rotate. The screw rod 222 can move through the threaded connection with the positioning frame 221, thereby driving the annular plate 223 to move. When the annular plate 223 moves, it drives the positioning rod 226 to slide on the positioning frame 221, and limits the movement of the annular plate 223, so that the two annular plates 223 are separated from each other, and the rubber ring 219 on the heat exchange tube 103 can be pulled out, so that the heat exchange tube 103 can be disassembled.

[0056] The contents not described in detail in this specification belong to the prior art known to professional and technical personnel in this field.

[0057] Although the present invention has been described in detail with reference to the aforementioned embodiments, it is still possible for those skilled in the art to modify the technical solutions described in the aforementioned embodiments, or to make equivalent substitutions for some of the technical features therein. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims

1. A waste heat recovery device for an air compressor, comprising a water tank (1), a drain pipe (101) penetrating and connected to the lower side of one side of the water tank (1), a valve being provided on the outer side of the drain pipe (101), a cover plate (102) being movably connected to the top of the water tank (1), and a heat exchange pipe (103) being provided inside the water tank (1); It is characterized in that Also includes: Rotating components (2) are arranged on both sides of the water tank (1); A rotating tube (201) is symmetrically rotatably connected to two sides of the water tank (1); one end of the rotating tube (201) away from the water tank (1) is penetrated and connected with a guide tube (202); one end of the guide tube (202) away from the rotating tube (201) is penetrated and connected with a mounting tube (203); and one end of the mounting tube (203) away from the guide tube (202) is fixedly mounted with a rotating joint (204); at the same time, a rotating shaft (205) is rotatably connected to a side of the rotating tube (201) close to the guide tube (202); and a plurality of arc-shaped plates (206) are fixedly mounted on the outside of the rotating shaft (205); A fixed frame (207) is fixedly mounted on one side of the outer side of the rotating tube (201), the fixed frame (207) is rotatably connected to the rotating shaft (205), one end of the rotating shaft (205) passes through the rotating tube (201) and the fixed frame (207) and is fixedly mounted with a first rotating gear (208), and the other side of the water tank (1) is located outside the rotating tube (201) and is fixedly mounted with a fixed plate (209), the rotating tube (201) is rotatably connected to the fixed plate (209), one side of the fixed plate (209) is fixedly mounted with a plurality of teeth (210), and the first rotating gear (208) is meshingly connected with the plurality of teeth (210); A mounting frame (211) is fixedly mounted on the outside of the other side of the rotating tube (201) on one side, and the other end of the rotating shaft (205) passes through the rotating tube (201) and is fixedly mounted with a driving gear (212), and a rotating rod (213) is fixedly mounted on the outside of the rotating tube (201) near the driving gear (212), and one end of the rotating rod (213) is rotationally connected to the rotating tube (201), and the other end of the rotating rod (213) is rotationally connected to the mounting frame (211), and a driven gear (214) is fixedly mounted on the outside of the rotating rod (213), and the driven gear (214) is meshingly connected to the driving gear (212); A first pulley (216) is fixedly mounted on the outer side of the rotating rod (213) close to the driven gear (214), and a connecting shaft (215) is rotatably connected to the inner side of the mounting frame (211), and a second pulley (217) is fixedly mounted on one end of the connecting shaft (215), and the second pulley (217) is rotatably connected to the first pulley (216) via a belt; One end of the connecting shaft (215) away from the second pulley (217) passes through the mounting frame (211) and is fixedly mounted with a second rotating gear (218), the second rotating gear (218) is meshingly connected with a plurality of teeth (210), and the first rotating gear (208) and the second rotating gear (218) are symmetrically arranged.

2. The waste heat recovery device for an air compressor according to claim 1, characterized in that: A fixing ring (220) is fixedly installed on one side of the interior of the two rotating tubes (201) close to the heat exchange tube (103), and rubber rings (219) are fixedly installed on both ends of the heat exchange tube (103), and positioning frames (221) are symmetrically installed on the exterior of the two rotating tubes (201) close to the heat exchange tube (103), and screw rods (222) are threadedly connected to the interior of the two positioning frames (221), and a knob (224) is fixedly installed on one end of the screw rod (222), and an annular plate (223) is movably connected to the adjacent ends of the two screw rods (222).

3. The waste heat recovery device for an air compressor according to claim 2, characterized in that: A sealing gasket (225) is fixedly mounted on one side of the two annular plates (223) close to the heat exchange tube (103).

4. The waste heat recovery device for an air compressor according to claim 2, characterized in that: Positioning rods (226) are symmetrically mounted on one side of the two annular plates (223) away from the heat exchange tube (103), and the two positioning rods (226) are slidably connected to the positioning frame (221).

5. The waste heat recovery device for an air compressor according to claim 1, characterized in that: The cross-sectional area of ​​the middle portion of the guide tube (202) is smaller than the cross-sectional areas of the two ends.

6. A method for an air compressor waste heat recovery device, using an air compressor waste heat recovery device according to any one of claims 1 to 5, the method steps are as follows: Step 1: When the air compressor is in use and lubricating oil is used for waste heat recovery, one end of the rotary joint (204) is connected to the lubricating oil output pipe on the air compressor, and the lubricating oil is passed into the rotary joint (204) through the air compressor body, so that the lubricating oil is sprayed out through the mounting pipe (203) and the guide pipe (202). After the lubricating oil is sprayed out through the guide pipe (202), the flow rate is increased, so that it impacts the arc plate (206) on the rotating shaft (205), thereby driving the rotating shaft (205) to rotate inside the rotating pipe (201) on one side. After the rotating shaft (205) on one side rotates, it rotates on the fixed frame (207) for support, so that the first rotating gear (208) is driven to rotate. After the first rotating gear (208) rotates, it contacts the fixed plate (206) on the rotating shaft (205). The meshing of a plurality of teeth (210) on the heat exchange tube (209) drives the rotating tube (201) on one side to rotate, thereby driving the heat exchange tube (103) and the rotating tube (201) on the other side to rotate, so that the heat exchange tube (103) rotates in the water tank (1). After the heat exchange tube (103) rotates, the contact area with the cooling water in the water tank (1) is increased, the fluid boundary layer is broken, and the contact frequency between the cooling water and the heat exchange tube (103) is increased, thereby improving the heat exchange efficiency. The cooling water in the water tank (1) is slowly rotated, which helps to even out the cooling water temperature and maintain the heat exchange efficiency. The rotation of the heat exchange tube (103) prevents impurities and scale in the cooling water from adhering to the heat exchange tube (103) through physical flushing, thereby reducing scaling on the outside of the heat exchange tube (103) and avoiding affecting the heat exchange efficiency. Step 2: The rotating shaft (205) drives the driving gear (212) to rotate while rotating. After the driving gear (212) rotates, it drives the rotating rod (213) to rotate between the rotating tube (201) on one side and the mounting frame (211) through the meshing driven gear (214). After the rotating rod (213) rotates, it drives the connecting shaft (215) to rotate on the mounting frame (211) through the rotational connection between the first belt pulley (216) and the second belt pulley (217), thereby causing the second rotating gear (218) to rotate, so that the rotating shaft (205) rotates. At the same time, the first rotating gear (208) and the second rotating gear (218) are driven to rotate synchronously in the opposite direction. The second rotating gear (218) also drives the rotating tube (201) to rotate by meshing with the teeth (210). By symmetrically arranging the first rotating gear (208) and the second rotating gear (218), the rotating tube (201) is driven to rotate smoothly by the first rotating gear (208) and the second rotating gear (218), thereby preventing the heat exchange tube (103) from having difficulty in rotating due to the resistance of the cooling water, thereby ensuring the normal rotation of the heat exchange tube (103); Step 3: When the heat exchange tube (103) is damaged and the heat exchange tube (103) is replaced, the two knobs (224) are turned to drive the screw rod (222) to rotate. The screw rod (222) rotates and moves through the threaded connection with the positioning frame (221), thereby driving the annular plate (223) to move. When the annular plate (223) moves, it drives the positioning rod (226) to slide on the positioning frame (221), and the movement of the annular plate (223) is limited, so that the two annular plates (223) are separated from each other, and the rubber ring (219) on the heat exchange tube (103) is pulled out, so that the heat exchange tube (103) is disassembled. When the heat exchange tube (103) is installed, the heat exchange tube (103) is ) are respectively inserted into the interior of the two rotating tubes (201), so that the rubber ring (219) fits with the fixing ring (220), and then the knob (224) is rotated to reset the annular plate (223), so that one side of the annular plate (223) and the rubber ring (219) squeeze the rubber ring (219) to deform, so that the annular plate (223) and the rubber ring (219) fit tightly, and the sealing gaskets (225) on the two annular plates (223) fit tightly with the heat exchange tube (103), thereby avoiding leakage, thereby facilitating the user to disassemble the heat exchange tube (103) and replace the heat exchange tube (103), thereby improving convenience.

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