Waste heat recovery device of screw air compressor

Abstract

The utility model discloses a screw air compressor waste heat recovery device, which relates to the technical field of recovery devices, and comprises a bottom plate, an oil waste heat machine is arranged on the top surface of the bottom plate, the waste heat machine comprises a shell, a plate type heat exchange device is arranged in the shell, the plate type heat exchange device comprises a mounting plate, and the mounting plate is arranged on the bottom plate. A fixing plate is fixedly arranged on the top face of the mounting plate, a sliding strip is fixedly arranged on one side of the fixing plate, a clamping plate is arranged on the top face of the mounting plate in a sliding mode, high-temperature and high-pressure oil and gas generated when the air compressor body works are conveyed into the plate type heat exchange device, a water pump is started at the same time, cold water enters a water inlet pipe from a connecting pipe, and therefore the heat exchange efficiency is improved. Heat in oil and gas and cold water are subjected to cold and heat exchange, then the heat can be recycled, energy waste is avoided, the oil and gas cooling efficiency is high, the situation that heat in the air compressor body is too high, and consequently internal parts break down is avoided, and the service life of equipment is prolonged.

Description

Technical Field

[0001] The utility model relates to the technical field of energy recovery and utilization, in particular to a waste heat recovery device for a screw air compressor. Background Art

[0002] Screw air compressor is a type of air compressor, which comes in single-screw and double-screw versions. It is a key equipment in the production of metal and non-metal mines. It is widely used because of its safety, no public hazards and good adjustment performance.

[0003] However, during use, existing screw air compressors generate high-temperature and high-pressure oil and gas. During the cooling process, the high-temperature and high-pressure oil and gas are wasted, resulting in energy waste. Moreover, when the high-temperature and high-pressure oil and gas are transported to the cooler for cooling, the cooling efficiency of the cooler is slow, resulting in excessively high internal temperature of the screw air compressor, making the equipment prone to failure and affecting the service life of the equipment. In response to the above problems, the inventors proposed a screw air compressor waste heat recovery device to solve the above problems. Utility Model Content

[0004] In order to solve the problem that during the use of the screw air compressor, high-temperature and high-pressure oil and gas are generated, a large amount of heat is wasted in the cooling process, and the heat cannot be recovered, thereby wasting energy, and when the high-temperature and high-pressure oil and gas are transported to the cooler for cooling, the cooling efficiency of the cooler is slow, resulting in excessively high temperature inside the screw air compressor, making the equipment prone to failure and reducing the service life; the purpose of the utility model is to provide a waste heat recovery device for a screw air compressor.

[0005] In order to solve the above technical problems, the present invention adopts the following technical solutions: a waste heat recovery device for a screw air compressor, comprising a bottom plate, an oil waste heat machine is installed on the top surface of the bottom plate, the waste heat machine comprises a shell, a plate heat exchange device is installed in the shell, the plate heat exchange device comprises a mounting plate, a fixed plate is fixed on the top surface of the mounting plate, a sliding bar is fixed on one side of the fixing plate, a clamping plate is slidably provided on the top surface of the mounting plate, a plate is placed between the fixing plate and the clamping plate, and the fixing plate is fixed on the top surface of the fixing plate. An oil inlet pipe, an oil outlet pipe, a water inlet pipe and a water outlet pipe are fixedly provided on one side respectively. An air compressor body is installed on the top surface of the bottom plate. A delivery pipe and a recovery pipe are fixedly provided on one side of the air compressor body respectively. The delivery pipe and the oil inlet pipe are interconnected, and the recovery pipe and the oil outlet pipe are interconnected. A water tank is installed on the top surface of the bottom plate. A water pump is installed on the top surface of the bottom plate. A water pump is fixedly connected between the water tank and the water pump. A connecting pipe is fixedly provided on the outer surface of the water pump. The water inlet pipe and the connecting pipe are interconnected. The cam is pressed against the outer surface of the fixing rod and the first spring is squeezed, and then, under the action of the rotating plate, the connecting plate drives the card block to move and detach from the mounting plate, thereby making the plate heat exchange device easy to disassemble and the plate heat exchange device easy to clean regularly, thereby saving maintenance time;

[0006] The air compressor body generates high-temperature and high-pressure oil and gas when working, so that the delivery pipe delivers the oil and gas to the oil inlet pipe. At the same time, the water pump is turned on to allow cold water to enter the water inlet pipe from the connecting pipe. Then, when passing through the plate, the heat in the oil and gas is exchanged with the cold water, heating the cold water and absorbing the heat in the oil and gas, thereby recovering the heat. The oil and gas are then delivered to the air compressor body from the oil outlet pipe again, and the heated water is delivered from the water outlet pipe to the hot water pipe. The hot water pipe is connected to the water terminal and delivers the hot water to the water terminal, thereby recovering the heat and reusing the heat, thus avoiding energy waste. The cooling efficiency of the oil and gas is fast, thus avoiding excessive heat inside the air compressor body and causing failure of internal parts, thereby extending the service life of the equipment.

[0007] A filter is provided near the flange in the water outlet pipe. The cam is rotated by turning on the second motor. When the cam contacts the U-shaped frame, the U-shaped frame slides on the outer surface of the vertical rod and squeezes the third spring. When the cam disengages from the U-shaped frame, the third spring causes the rubber ball to knock on the water outlet pipe, thereby cleaning the dirt on the inner wall of the water outlet pipe to avoid blockage during water outlet, which reduces the use effect of the equipment. The dirt knocked down by the rubber ball can be blocked by the filter and then falls into the storage box. The storage box can then be removed through the provided threaded pipe, so that the dirt in the storage box can be regularly processed.

[0008] The top surface of the fixing plate is fixedly provided with a fixing frame, and the top surface of the fixing frame is installed with a first motor, and the output end of the first motor is fixedly provided with a bidirectional screw shaft, the outer surface of the bidirectional screw shaft is threadedly sleeved with a threaded block, and the threaded block is slidably arranged in the fixing frame, and a first connecting seat is fixedly provided on one side of the threaded block, and a guide rod is rotatably connected to the first connecting seat, and a second connecting seat is fixedly provided on one side of the clamping plate, and a limit rod is movably inserted in the fixing plate and the clamping plate, and a nut is threadedly sleeved on the outer surface of the limit rod, and a positioning block is fixedly provided on one side of the fixing plate and the clamping plate, and a movable rod is slidably penetrated in the positioning block, and one end of the movable rod is fixedly provided with a clamping plate, and a second spring is fixedly connected between the positioning block and the clamping plate, and the clamping plate is clamped on the outer surface of the nut.

[0009] Preferably, a frame is fixedly provided in the shell, the mounting plate is installed in the frame, connecting plates are movably provided on both sides of the frame, a fixed card block is fixed on one side of the connecting plate, the card block is slidably provided in the frame, and the card block is slidably inserted in the mounting plate, a fixed rod is fixed on one side of the frame, a movable plate is slidably sleeved on the outer surface of the fixed rod, a first spring is fixedly connected between the movable plate and the frame, and the first spring is movably sleeved on the outer surface of the fixed rod, a rotating plate is rotatably connected in the movable plate, fixed seats are fixed on both sides of the connecting plate, and the rotating plate is rotatably provided in the fixed seat at one end away from the movable plate.

[0010] Preferably, a descaling device is installed on one side of the shell, and the descaling device includes a positioning frame, the positioning frame is installed on one side of the shell, and the positioning frame is sleeved on the outer surface of the water outlet pipe, a horizontal plate is fixedly provided on one side of the positioning frame, vertical rods are fixedly connected between the horizontal plates, the outer surface of the vertical rod is slidingly sleeved with a U-shaped frame, an arc plate is fixedly provided on one side of the U-shaped frame, a rubber ball is fixedly provided in the arc plate, a third spring is fixedly connected between the horizontal plate and the U-shaped frame, and the third spring is movably sleeved on the outer surface of the vertical rod, a second motor is installed on one side of the positioning frame, the output end of the second motor is fixedly sleeved with a cam, a threaded pipe is fixedly provided on the outer surface of the water outlet pipe, and a storage box is threadedly sleeved on the outer surface of the threaded pipe.

[0011] Compared with the prior art, the beneficial effects of the present invention are:

[0012] 1. In the utility model, the high-temperature and high-pressure oil and gas generated by the air compressor body during operation are transported to the plate heat exchange device. At the same time, the water pump is turned on to allow cold water to enter the water inlet pipe from the connecting pipe, so that the heat in the oil and gas and the cold water are exchanged for heat, thereby enabling the heat to be recovered and reused, avoiding energy waste, and quickly cooling the oil and gas, thus avoiding excessive heat inside the air compressor body, which may cause internal parts failure, and extending the service life of the equipment;

[0013] 2. In the present invention, a plurality of plates are arranged in sequence near one side of the fixed plate, and then the clamping plate is moved to clamp the plates, thereby facilitating the movement of the clamping plate. The fixed plate and the clamping plate are then fixed by a limiting rod and a nut, thereby clamping the plates so that the clamping plate is clamped on the outer surface of the nut, thereby preventing vibration generated during the use of the device from loosening the nut and causing displacement of the clamping plate, thereby improving stability after installation;

[0014] 3. In the utility model, a filter is provided near the flange in the water outlet pipe. The rubber ball knocks on the water outlet pipe to clean the dirt on the inner wall of the water outlet pipe, avoiding blockage during water outlet, which reduces the use effect of the equipment. The dirt can be blocked by the filter and then falls into the storage box, and then the dirt in the storage box is regularly processed. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the following briefly introduces the drawings required for use in the embodiments or the description of the prior art. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying any creative work.

[0016] Figure 1This is a schematic diagram of the overall structure of the utility model;

[0017] Figure 2 This is a schematic diagram of a partial cross-sectional structure of the bottom plate of the utility model;

[0018] Figure 3 This is a schematic diagram of a partial cross-sectional structure of the housing of the utility model;

[0019] Figure 4 This is a schematic structural diagram of the plate heat exchange device of the utility model;

[0020] Figure 5 This is a schematic diagram of the structure of the descaling device of the utility model;

[0021] Figure 6 This is a schematic diagram of the water outlet pipe structure of the utility model;

[0022] Figure 7 This is a schematic diagram of the structure of the waste heat engine of the utility model;

[0023] Figure 8 For this utility model Figure 4 Enlarged structural diagram at point A in the middle.

[0024] In the figure: 1, bottom plate; 2, waste heat engine; 3, plate heat exchange device; 4, descaling device; 101, air compressor body; 102, delivery pipe; 103, recovery pipe; 104, water tank; 105, water pump; 106, water extraction pipe; 107, connecting pipe; 108, hot water pipe; 201, shell; 202, frame; 203, fixing rod; 204, moving plate; 205, first spring; 206, rotating plate; 207, fixing seat; 208, connecting plate; 209, clamping block; 301, mounting plate; 302, fixing plate; 303, clamping plate; 304, plate; 305, slide bar; 306, oil inlet pipe; 307, outlet Oil pipe; 308, water inlet pipe; 309, water outlet pipe; 310, fixed frame; 311, first motor; 312, bidirectional screw rod; 313, threaded block; 314, first connecting seat; 315, guide rod; 316, second connecting seat; 317, limit rod; 318, nut; 319, positioning block; 320, movable rod; 321, second spring; 322, clamping plate; 401, positioning frame; 402, second motor; 403, cam; 404, horizontal plate; 405, vertical rod; 406, third spring; 407, U-shaped frame; 408, curved plate; 409, rubber ball; 410, threaded pipe; 411, storage box. DETAILED DESCRIPTION

[0025] 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 embodiments described 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 making creative efforts are within the scope of protection of the present invention.

[0026] Example: Figure 1-8 As shown, the utility model provides a waste heat recovery device for a screw air compressor, comprising a base plate 1, an oil waste heat machine 2 is installed on the top surface of the base plate 1, the waste heat machine 2 comprises a shell 201, a plate heat exchange device 3 is installed in the shell 201, the plate heat exchange device 3 comprises a mounting plate 301, a fixing plate 302 is fixed on the top surface of the mounting plate 301, a sliding bar 305 is fixed on one side of the fixing plate 302, a clamping plate 303 is slidably provided on the top surface of the mounting plate 301, a plate 304 is placed between the fixing plate 302 and the clamping plate 303, and an oil inlet pipe 306 and an oil outlet pipe are fixed on one side of the fixing plate 302. 307, water inlet pipe 308, water outlet pipe 309, the top surface of the bottom plate 1 is installed with the air compressor body 101, and the side of the air compressor body 101 is fixed with a delivery pipe 102 and a recovery pipe 103, the delivery pipe 102 and the oil inlet pipe 306 are mutually connected, and the recovery pipe 103 and the oil outlet pipe 307 are mutually connected. A water tank 104 is installed on the top surface of the bottom plate 1, and a water pump 105 is installed on the top surface of the bottom plate 1. A water pump 106 is fixedly connected between the water tank 104 and the water pump 105. A connecting pipe 107 is fixed on the outer surface of the water pump 105. The water inlet pipe 308 and the connecting pipe 107 are mutually connected, and the water outlet pipe One end of 309 is equipped with a hot water pipe 108, and the hot water pipe 108 and the water outlet pipe 309 are interconnected. The delivery pipe 102 and the oil inlet pipe 306, the recovery pipe 103 and the oil outlet pipe 307, the water inlet pipe 308 and the connecting pipe 107, and the hot water pipe 108 and the water outlet pipe 309 are all sealed and connected by flanges and bolts. The high-temperature and high-pressure oil and gas generated by the air compressor body 101 during operation are used to make the delivery pipe 102 deliver the oil and gas to the oil inlet pipe 306. At the same time, the water pump 105 is turned on to make cold water enter the water inlet pipe 308 from the connecting pipe 107, and then when passing through the plate 304, the oil and gas are transported to the oil inlet pipe 306. The heat in the oil and gas is exchanged with the cold water to heat the cold water, and the heat in the oil and gas is absorbed, thereby recovering the heat. The oil and gas are then transported from the oil outlet pipe 307 to the air compressor body 101 again, and the heated water is transported from the water outlet pipe 309 to the hot water pipe 108. The hot water pipe 108 is connected to the water terminal and transports the hot water to the water terminal, thereby recovering the heat and reusing it, thus avoiding energy waste. The cooling efficiency of the oil and gas is fast, thus avoiding excessive heat inside the air compressor body 101, which may cause failure of internal parts and increase the service life of the equipment.

[0027] A fixing frame 310 is fixed on the top surface of the mounting plate 301, and a first motor 311 is installed on the top surface of the fixing frame 310. A bidirectional screw rod 312 is fixed on the output end of the first motor 311. A threaded block 313 is provided on the outer surface of the bidirectional screw rod 312, and the threaded block 313 is slidably arranged in the fixing frame 310. A first connecting seat 314 is fixed on one side of the threaded block 313, and a guide rod 315 is rotatably connected in the first connecting seat 314. A second connecting seat 316 is fixed on one side of the clamping plate 303, and the guide rod 315 is away from the first connecting seat 314. One end of the connecting seat 314 is rotatably arranged in the second connecting seat 316, and a limiting rod 317 is movably inserted in the fixed plate 302 and the clamping plate 303. A nut 318 is threadedly sleeved on the outer surface of the limiting rod 317. A positioning block 319 is fixed on one side of the fixed plate 302 and the clamping plate 303. A movable rod 320 slides through the positioning block 319, and a clamping plate 322 is fixed at one end of the movable rod 320. A second spring 321 is fixedly connected between the positioning block 319 and the clamping plate 322, and the clamping plate 322 is clamped on the outer surface of the nut 318.

[0028] By adopting the above technical solution, several plates 304 are arranged in sequence near one side of the fixed plate 302, and then the first motor 311 is turned on, so that the bidirectional screw rod 312 rotates and the threaded block 313 slides in the fixed frame 310. At the same time, the guide rod 315 rotates in the first connecting seat 314, and its other side rotates in the second connecting seat 316, thereby pushing the clamping plate 303 to move on the outer surface of the slide bar 305, thereby facilitating the movement of the clamping plate 303, and then the fixed plate 302 and the clamping plate 303 are fixed by the limit rod 317 and the nut 318, so that the plate 304 can be clamped. Under the action of the second spring 321, the clamping plate 322 is stuck on the outer surface of the nut 318, avoiding vibration generated during the use of the device, which makes the nut 318 loose and causes the clamping plate 303 to move, thereby improving the stability after installation.

[0029] A frame 202 is fixedly provided in the shell 201, and the mounting plate 301 is installed in the frame 202. Connecting plates 208 are movably provided on both sides of the frame 202. A fixed block 209 is provided on one side of the connecting plate 208. The block 209 is slidably provided in the frame 202, and the block 209 is slidably inserted in the mounting plate 301. A fixed rod 203 is fixed on one side of the frame 202, and a movable plate 204 is slidably sleeved on the outer surface of the fixed rod 203. A first spring 205 is fixedly connected between the movable plate 204 and the frame 202, and the first spring 205 is movably sleeved on the outer surface of the fixed rod 203. A rotating plate 206 is rotatably connected in the movable plate 204. Fixed seats 207 are fixed on both sides of the connecting plate 208, and the end of the rotating plate 206 away from the movable plate 204 is rotatably provided in the fixed seat 207.

[0030] By adopting the above technical solution, by pressing the movable plate 204 to make it slide on the outer surface of the fixed rod 203 and squeeze the first spring 205, and then under the action of the rotating plate 206, the connecting plate 208 drives the block 209 to move and detach from the mounting plate 301, thereby making it easy to disassemble the plate heat exchange device 3, facilitating regular cleaning of dirt on the plate heat exchange device 3, and saving maintenance time.

[0031] A descaling device 4 is installed on one side of the shell 201. The descaling device 4 includes a positioning frame 401, which is installed on one side of the shell 201 and is sleeved on the outer surface of the water outlet pipe 309. A horizontal plate 404 is fixedly provided on one side of the positioning frame 401. Vertical rods 405 are fixedly connected between the horizontal plates 404. The outer surface of the vertical rod 405 is slidingly sleeved with a U-shaped frame 407. An arc plate 408 is fixedly provided on one side of the U-shaped frame 407. A rubber ball 409 is fixedly provided in the arc plate 408. A third spring 406 is fixedly connected between the horizontal plate 404 and the U-shaped frame 407, and the third spring 406 is movably sleeved on the outer surface of the vertical rod 405. A second motor 402 is installed on one side of the positioning frame 401. A cam 403 is fixedly sleeved on the output end of the second motor 402. A threaded tube 410 is fixedly provided on the outer surface of the water outlet pipe 309. A storage box 411 is threadedly sleeved on the outer surface of the threaded tube 410.

[0032] By adopting the above technical solution, a filter is provided near the flange in the water outlet pipe 309, and the cam 403 is rotated by turning on the second motor 402. When the cam 403 contacts the U-shaped frame 407, the U-shaped frame 407 slides on the outer surface of the vertical rod 405 and squeezes the third spring 406. When the cam 403 disengages from the U-shaped frame 407, the rubber ball 409 is acted upon by the third spring 406 to knock on the water outlet pipe 309, thereby cleaning the dirt on the inner wall of the water outlet pipe 309, avoiding unsmooth water discharge, resulting in blockage and reduced use effect of the equipment. The dirt knocked down by the rubber ball 409 can be blocked by the filter and then fall into the storage box 411. The storage box 411 can then be removed through the provided threaded tube 410, thereby enabling regular treatment of the dirt in the storage box 411.

[0033] Working principle: First, several plates 304 are arranged in sequence near one side of the fixed plate 302, and then the first motor 311 is turned on, so that the bidirectional screw rod 312 rotates and the threaded block 313 slides in the fixed frame 310. At the same time, the guide rod 315 rotates in the first connecting seat 314, and the other side rotates in the second connecting seat 316, thereby pushing the clamping plate 303 to move on the outer surface of the slide bar 305, thereby facilitating the movement of the clamping plate 303. Then, the fixed plate 302 and the clamping plate 303 are fixed by the limit rod 317 and the nut 318, so that the plate 304 can be clamped. The second spring 321 allows the clamping plate 322 to be clamped on the outer surface of the nut 318, thereby preventing vibration during use of the device from loosening the nut 318 and causing the clamping plate 303 to move, thereby improving the stability after installation. The movable plate 204 is pressed to slide on the outer surface of the fixing rod 203 and squeeze the first spring 205. Then, under the action of the rotating plate 206, the connecting plate 208 drives the clamping block 209 to move and separate from the mounting plate 301, thereby facilitating the disassembly of the plate heat exchange device 3 and facilitating regular cleaning of the plate heat exchange device 3, thereby saving maintenance time.

[0034] The air compressor body 101 generates high-temperature and high-pressure oil and gas during operation, so that the delivery pipe 102 delivers the oil and gas to the oil inlet pipe 306. At the same time, the water pump 105 is turned on to allow cold water to enter the water inlet pipe 308 from the connecting pipe 107. Then, when passing through the plate 304, the heat in the oil and gas is exchanged with the cold water, heating the cold water and absorbing the heat in the oil and gas, thereby recovering the heat. The oil and gas are then delivered to the air compressor body 101 again from the oil outlet pipe 307, and the heated water is delivered to the hot water pipe 108 from the water outlet pipe 309. The hot water pipe 108 is connected to the water terminal and delivers the hot water to the water terminal, thereby recovering the heat and avoiding energy waste. The oil and gas are cooled quickly, avoiding excessive heat inside the air compressor body 101 and causing failure of internal parts, thereby improving the service life of the equipment.

[0035] A filter is provided in the water outlet pipe 309 near the flange. By turning on the second motor 402, the cam 403 rotates. When the cam 403 contacts the U-shaped frame 407, the U-shaped frame 407 slides on the outer surface of the vertical rod 405 and squeezes the third spring 406. When the cam 403 disengages from the U-shaped frame 407, the rubber ball 409 knocks on the water outlet pipe 309 under the action of the third spring 406, thereby cleaning the dirt on the inner wall of the water outlet pipe 309, avoiding unsmooth water discharge and blockage, thereby improving the use effect of the equipment. The dirt knocked down by the rubber ball 409 can be blocked by the filter and then falls into the storage box 411. Then, through the provided threaded tube 410, the storage box 411 can be removed, and the dirt in the storage box 411 can be regularly processed.

[0036] Obviously, those skilled in the art may make various modifications and variations to the present invention without departing from the spirit and scope of the present invention. Thus, if such modifications and variations fall within the scope of the claims of the present invention and their equivalents, the present invention is intended to include such modifications and variations.

Claims

1. A waste heat recovery device for a screw air compressor, comprising a base plate (1), characterized in that: An oil waste heat engine (2) is installed on the top surface of the base plate (1), the waste heat engine (2) includes a shell (201), a plate heat exchange device (3) is installed in the shell (201), the plate heat exchange device (3) includes a mounting plate (301), a fixed plate (302) is fixed on the top surface of the mounting plate (301), a sliding bar (305) is fixed on one side of the fixing plate (302), a clamping plate (303) is slidably provided on the top surface of the mounting plate (301), a plate (304) is placed between the fixing plate (302) and the clamping plate (303), an oil inlet pipe (306), an oil outlet pipe (307), a water inlet pipe (308), and a water outlet pipe (309) are fixed on one side of the fixing plate (302), and an air compressor body is installed on the top surface of the base plate (1). (101), a delivery pipe (102) and a recovery pipe (103) are fixedly provided on one side of the air compressor body (101), the delivery pipe (102) and the oil inlet pipe (306) are interconnected, and the recovery pipe (103) and the oil outlet pipe (307) are interconnected. A water tank (104) is installed on the top surface of the base plate (1), and a water pump (105) is installed on the top surface of the base plate (1). A water pump (106) is fixedly connected between the water tank (104) and the water pump (105), and a connecting pipe (107) is fixedly provided on the outer surface of the water pump (105), the water inlet pipe (308) and the connecting pipe (107) are interconnected, and a hot water pipe (108) is installed on one end of the water outlet pipe (309), and the hot water pipe (108) and the water outlet pipe (309) are interconnected.

2. The waste heat recovery device for a screw air compressor according to claim 1, characterized in that: A fixing frame (310) is fixedly provided on the top surface of the mounting plate (301), a first motor (311) is installed on the top surface of the fixing frame (310), a bidirectional screw rod (312) is fixedly provided on the output end of the first motor (311), a threaded block (313) is threadedly sleeved on the outer surface of the bidirectional screw rod (312), and the threaded block (313) is slidably arranged in the fixing frame (310), a first connecting seat (314) is fixedly provided on one side of the threaded block (313), a guide rod (315) is rotatably connected in the first connecting seat (314), a second connecting seat (316) is fixedly provided on one side of the clamping plate (303), and an end of the guide rod (315) away from the first connecting seat (314) is rotatably arranged in the second connecting seat (316).

3. The waste heat recovery device for a screw air compressor according to claim 1, characterized in that: A limiting rod (317) is movably inserted into the fixing plate (302) and the clamping plate (303), and a nut (318) is threadedly sleeved on the outer surface of the limiting rod (317).

4. The waste heat recovery device for a screw air compressor according to claim 3, characterized in that: A positioning block (319) is fixedly provided on one side of the fixing plate (302) and the clamping plate (303), and a movable rod (320) is slidably passed through the positioning block (319). A clamping plate (322) is fixedly provided on one end of the movable rod (320), and a second spring (321) is fixedly connected between the positioning block (319) and the clamping plate (322), and the clamping plate (322) is clamped on the outer surface of the nut (318).

5. The waste heat recovery device for a screw air compressor according to claim 1, wherein: A frame (202) is fixedly provided in the shell (201), the mounting plate (301) is installed in the frame (202), connecting plates (208) are movably provided on both sides of the frame (202), a clamping block (209) is fixed on one side of the connecting plate (208), the clamping block (209) is slidably provided in the frame (202), and the clamping block (209) is slidably inserted in the mounting plate (301).

6. The waste heat recovery device for a screw air compressor according to claim 5, characterized in that: A fixed rod (203) is fixedly provided on one side of the frame (202), a movable plate (204) is slidably sleeved on the outer surface of the fixed rod (203), a first spring (205) is fixedly connected between the movable plate (204) and the frame (202), and the first spring (205) is movably sleeved on the outer surface of the fixed rod (203), a rotating plate (206) is rotatably connected inside the movable plate (204), fixed seats (207) are fixedly provided on both sides of the connecting plate (208), and one end of the rotating plate (206) away from the movable plate (204) is rotatably arranged in the fixed seat (207).

7. The waste heat recovery device for a screw air compressor according to claim 1, wherein: A descaling device (4) is installed on one side of the housing (201), and the descaling device (4) comprises a positioning frame (401). The positioning frame (401) is installed on one side of the housing (201), and the positioning frame (401) is sleeved on the outer surface of the water outlet pipe (309).

8. The waste heat recovery device for a screw air compressor according to claim 7, characterized in that: A horizontal plate (404) is fixedly provided on one side of the positioning frame (401), vertical rods (405) are fixedly connected between the horizontal plates (404), a U-shaped frame (407) is slidably sleeved on the outer surface of the vertical rod (405), an arc-shaped plate (408) is fixedly provided on one side of the U-shaped frame (407), a rubber ball (409) is fixedly provided inside the arc-shaped plate (408), a third spring (406) is fixedly connected between the horizontal plate (404) and the U-shaped frame (407), and the third spring (406) is movably sleeved on the outer surface of the vertical rod (405).

9. The waste heat recovery device for a screw air compressor according to claim 8, characterized in that: A second motor (402) is installed on one side of the positioning frame (401), and a cam (403) is fixedly mounted on the output end of the second motor (402).

10. The waste heat recovery device for a screw air compressor according to claim 1, wherein: A threaded tube (410) is fixedly provided on the outer surface of the water outlet pipe (309), and a storage box (411) is threadedly sleeved on the outer surface of the threaded tube (410).

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