An ethylene glycol radiator tube internal cleaning device

Abstract

The present invention relates to a device for cleaning the interior of an ethylene glycol radiator tube, comprising a high-pressure nozzle, a guide pipe connected to the high-pressure nozzle, a rotating nozzle disposed at the end of the guide pipe, a first support mechanism disposed at one end of the guide pipe near the rotating nozzle and used to support the interior of the tube, and a second support mechanism disposed behind the first support mechanism and used to support the tube opening of the tube. The guide pipe moves within the tube via the first support mechanism, and the second support mechanism is fixedly disposed at the tube opening relative to the first support mechanism. The present invention reduces the difficulty of cleaning the radiator tube by connecting the guide pipe to the high-pressure nozzle, allowing the guide pipe to penetrate into the interior of the radiator tube through the first and second support mechanisms, and flushing the interior of the radiator tube via the rotating nozzle.

Description

Technical Field

[0001] The invention relates to the field of technical cleaning equipment, in particular to a device for cleaning the interior of a glycol radiator tube. Background Art

[0002] Heat exchangers are a crucial auxiliary equipment in polyester production. Their primary function is to transfer heat between cooling water and ethylene glycol, reducing the temperature of the primary ethylene glycol to meet production requirements. Prolonged use can easily lead to clogging of the radiator tubes. Due to the long length of the radiator tubes, conventional high-pressure water cannot reach the bottom of the tubes, resulting in incomplete cleaning.

[0003] Existing radiator tube cleaning devices, such as the Chinese utility model patent with publication number 202120604007.X, discloses a descaling robot for cleaning the heat exchanger tubes. The height of its driving wheel is adjusted by a telescopic rod, but this adjustment method is prone to errors, which makes it impossible for the nozzle to remain in the center position of the tube, resulting in uneven cleaning of the inner wall of the tube. Summary of the Invention

[0004] The purpose of the present invention is to provide a device for cleaning the inside of ethylene glycol radiator tubes, so as to solve the problem that the radiator tubes are difficult to clean.

[0005] The above-mentioned object of the present invention is achieved through the following technical solutions: A device for cleaning the inside of a glycol radiator tube, comprising a high-pressure nozzle, a guide pipe connected to the high-pressure nozzle, a rotating nozzle arranged at the end of the guide pipe, a first supporting mechanism arranged at one end of the guide pipe close to the rotating nozzle and used to support the inside of the tube, and a second supporting mechanism arranged on the rear side of the first supporting mechanism and used to support the tube mouth of the tube, the guide pipe moves inside the tube through the first supporting mechanism, and the second supporting mechanism is fixedly arranged at the tube mouth relative to the first supporting mechanism.

[0006] Preferably, the first supporting mechanism includes a first fixed sleeve fixed on the guide tube, a plurality of running wheels circumferentially distributed outside the first fixed sleeve, a first supporting arm connected between the first fixed sleeve and the running wheels, a first movable sleeve movablely sleeved on the guide tube and moving back and forth relative to the first fixed sleeve, a first transmission arm connected between the first movable sleeve and the first supporting arm, and an elastic member driving the first movable sleeve to move toward the direction of the first fixed sleeve.

[0007] Preferably, the first supporting mechanism further includes a first adjusting sleeve, the first adjusting sleeve is threadedly connected to the outside of the guide tube, the first movable sleeve is located between the first fixed sleeve and the first adjusting sleeve, and the elastic member is connected between the first movable sleeve and the first adjusting sleeve.

[0008] Preferably, the first movable sleeve is provided with a first waterproof cylinder, the first adjustment sleeve is provided with a second waterproof cylinder, the first waterproof cylinder is sleeved on the outside of the second waterproof cylinder, and a sealing structure is provided between the first waterproof cylinder and the second waterproof cylinder.

[0009] Preferably, the sealing structure includes a pressure ring movably arranged on the first waterproof cylinder, an elastic pressing member connected to the pressure ring and the first movable sleeve, a retaining ring arranged on the inner wall of the second waterproof cylinder, and a sealing ring arranged between the pressure ring and the retaining ring.

[0010] Preferably, the inner ring of the pressure ring is provided with a convex ring, the end surface of the retaining ring is provided with an annular groove, and the convex ring is embedded in the annular groove.

[0011] Preferably, the second supporting mechanism includes a second fixed sleeve arranged on the guide tube, a second supporting arm arranged radially along the second fixed sleeve, a supporting block arranged at the end of the second supporting arm, a second movable sleeve movably sleeved on the guide tube and moving forward and backward relative to the second fixed sleeve, a second transmission arm connected between the second supporting arm and the second movable sleeve, and a second adjusting sleeve screwed on the guide tube, the second supporting arm is a telescopic arm, and the second movable sleeve is located between the second fixed sleeve and the second adjusting sleeve.

[0012] Preferably, the high-pressure nozzle includes a shell, a sealing sleeve arranged in the shell, a rotating shaft arranged in the sealing sleeve, a cleaning head arranged at the front end of the rotating shaft, and a water spray hole arranged on the cleaning head, a guide hole is arranged in the rotating shaft, a water storage chamber is arranged in the cleaning head, and the water spray hole and the guide hole are connected to the water storage chamber.

[0013] Preferably, a first center hole, a second center hole and a third center hole are sequentially provided in the sealing sleeve, and the apertures of the first center hole, the second center hole and the third center hole decrease in sequence. The rotating shaft is passed through the second center hole and the third center hole, and the rear end of the rotating shaft is provided with a piston end located in the third center hole. A limiting plug is provided in the third center hole and is located on the rear side of the piston end. A guide groove is provided on the outside of the sealing sleeve, and the guide groove is connected to the first center hole and the second center hole. A water inlet hole is provided on the side wall of the rotating shaft, and the water inlet hole is provided at the end of the third center hole close to the second center hole.

[0014] Preferably, a rotation support seat is provided between the piston end and the limiting plug, the rotation support seat is movably provided in the first center hole, and a return spring is provided between the rotation support seat and the limiting plug.

[0015] Beneficial effects of the present invention: The present invention connects a guide tube to the high-pressure nozzle, the guide tube penetrates into the interior of the radiator tubes through the first support mechanism and the second support mechanism, and flushes the interior of the radiator tubes through the rotating nozzle, thereby reducing the difficulty of cleaning the radiator tubes. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 It is a structural diagram of an embodiment of the present invention;

[0017] Figure 2 is a structural schematic diagram of a first supporting mechanism in an embodiment of the present invention;

[0018] Figure 3 yes Figure 2 A partial enlarged view of point A in the middle;

[0019] Figure 4 is a structural schematic diagram of the second supporting mechanism in an embodiment of the present invention;

[0020] Figure 5 2 is a schematic structural diagram of a rotary sprinkler head according to an embodiment of the present invention;

[0021] In the figure: 1-high pressure nozzle, 2-guide pipe, 3-first supporting mechanism, 301-first fixed sleeve, 302-first movable sleeve, 303-first supporting arm, 304-travel wheel, 305-first transmission arm, 306-first adjusting sleeve, 307-elastic member, 308-first waterproof cylinder, 309-second waterproof cylinder, 310-elastic top pressure member, 311-pressure ring, 312-sealing ring, 313-convex ring, 314-annular groove, 315-blocking ring, 4-second supporting mechanism, 401-second fixed sleeve, 402-second supporting arm, 4 03-support block, 404-second movable sleeve, 405-second transmission arm, 406-second adjustment sleeve, 5-rotating nozzle, 501-housing, 502-sealing sleeve, 503-rotating shaft, 504-cleaning head, 505-water storage chamber, 506-water spray hole, 507-guide hole, 508-water inlet hole, 509-piston end, 510-first center hole, 511-second center hole, 512-third center hole, 513-guide groove, 514-rotating support seat, 515-reset spring, 516-limit plug, 6-radiator tube. DETAILED DESCRIPTION

[0022] The present invention will be further described in detail below with reference to the accompanying drawings.

[0023] This specific embodiment is merely an explanation of the present invention and is not intended to limit the present invention. After reading this specification, those skilled in the art may make non-creative modifications to this embodiment as needed. However, as long as such modifications are within the scope of the claims of the present invention, they are protected by patent law.

[0024] Example: Figure 1 As shown, a device for cleaning the interior of a glycol radiator tube array comprises a high-pressure nozzle 1, a guide tube 2 connected to the high-pressure nozzle 1, a rotating nozzle 5 disposed at the end of the guide tube 2, a first support mechanism 3 disposed at the end of the guide tube 2 near the rotating nozzle 5 and used to support the interior of the tube array, and a second support mechanism 4 disposed behind the first support mechanism 3 and used to support the tube opening. The guide tube 2 moves within the tube array via the first support mechanism 3, and the second support mechanism 4 is fixedly disposed at the tube opening relative to the first support mechanism 3. The high-pressure nozzle 1 is the nozzle of a conventional high-pressure water gun.

[0025] like Figure 2 and Figure 3 As shown, the first support mechanism 3 includes a first fixed sleeve 301 fixed to the guide tube 2, a plurality of running wheels 304 circumferentially distributed outside the first fixed sleeve 301, a first support arm 303 connected between the first fixed sleeve 301 and the running wheels 304, a first movable sleeve 302 that is movably mounted on the guide tube 2 and moves back and forth relative to the first fixed sleeve 301, a first transmission arm 305 connected between the first movable sleeve 302 and the first support arm 303, and an elastic member 307 that drives the first movable sleeve 302 toward the first fixed sleeve 301. The first transmission arm 305 is connected to the first movable sleeve 302 and the first support arm 303 by a hinged connection.

[0026] The first support mechanism 3 also includes a first adjustment sleeve 306, which is threaded onto the outer side of the guide tube 2, which is provided with external threads. The first movable sleeve 302 is located between the first fixed sleeve 301 and the first adjustment sleeve 306, and the elastic member 307 is connected between the first movable sleeve 302 and the first adjustment sleeve 306.

[0027] There are three running wheels 304, evenly distributed around the circumference. When the guide tube 2 extends into the radiator tubes 6, the running wheels 304 are pressed against the tube walls and swing inward until they come into contact with the tube walls. At this point, the first movable sleeve 302 moves toward the first adjustment sleeve 306, compressing the spring-loaded elastic member 307. The front end of the guide tube 2 is now supported at the center of the radiator tubes 6.

[0028] A first waterproof tube 308 is mounted on the first movable sleeve 302, and a second waterproof tube 309 is mounted on the first adjustment sleeve 306. The first waterproof tube 308 is mounted outside the second waterproof tube 309, and a sealing structure is provided between the first and second waterproof tubes 308 and 309. The sealing structure includes a pressure ring 311 movably mounted on the first waterproof tube 308, an elastic pressure member 310 connected to the pressure ring 311 and the first movable sleeve 302, a retaining ring 315 mounted on the inner wall of the second waterproof tube 309, and a sealing ring 312 disposed between the pressure ring 311 and the retaining ring 315. The elastic pressure member 310 is a spring.

[0029] The inner ring of the pressure ring 311 is provided with a convex ring 313 , and the end surface of the retaining ring 315 is provided with an annular groove 314 , in which the convex ring 313 is embedded.

[0030] This sealing structure can prevent water from entering the first waterproof cylinder 308 and the second waterproof cylinder 309 during flushing, thereby protecting the spring from being soaked in water and rusting.

[0031] like Figure 4 As shown, the second support mechanism 4 includes a second fixed sleeve 401 arranged on the guide tube 2, a second support arm 402 arranged radially along the second fixed sleeve 401, a support block 403 arranged at the end of the second support arm 402, a second movable sleeve 404 that is movable sleeved on the guide tube 2 and moves back and forth relative to the second fixed sleeve 401, a second transmission arm 405 connected between the second support arm 402 and the second movable sleeve 404, and a second adjustment sleeve 406 screwed on the guide tube 2. The second support arm 402 is a telescopic arm, and the second movable sleeve 404 is located between the second fixed sleeve 401 and the second adjustment sleeve 406.

[0032] The support block 403 is made of a rubber block, the second support arm 402 includes a fixed arm fixed on the second fixed sleeve 401 and a movable arm sleeved on the fixed arm, the support block 403 is connected to the end of the movable arm, one end of the second transmission arm 405 is hinged to the movable arm, and the other end is hinged to the second movable sleeve 404.

[0033] When the front end of the guide tube 2 enters the radiator tube 6, the second support mechanism 4 is supported at the tube mouth of the radiator tube 6. At this time, it can move freely back and forth along the center line of the radiator tube 6 to clean the inner wall of the radiator tube 6, ensuring that the guide tube 2 always moves along the center line of the radiator tube 6.

[0034] like Figure 5As shown, the high-pressure nozzle 1 includes a housing 501, a sealing sleeve 502 disposed within the housing 501, a rotating shaft 503 disposed within the sealing sleeve 502, a cleaning head 504 disposed at the front end of the rotating shaft 503, and a water spray hole 506 disposed on the cleaning head 504. The rotating shaft 503 is provided with a guide hole 507, and the cleaning head 504 is provided with a water storage chamber 505. The water spray hole 506 and the guide hole 507 are connected to the water storage chamber 505. The connection between the cleaning head 504 and the rotating shaft 503 is threaded.

[0035] A first center hole 510, a second center hole 511 and a third center hole 512 are sequentially provided in the sealing sleeve 502, and the apertures of the first center hole 510, the second center hole 511 and the third center hole 512 decrease in sequence. The rotating shaft 503 is passed through the second center hole 511 and the third center hole 512, and a piston end 509 located in the third center hole 512 is provided at the rear end of the rotating shaft 503, and a limiting plug 516 located on the rear side of the piston end 509 is provided in the third center hole 512. A guide groove 513 is provided on the outside of the sealing sleeve 502, and the guide groove 513 is connected between the first center hole 510 and the second center hole 511. A water inlet hole 508 is provided on the side wall of the rotating shaft 503, and the water inlet hole 508 is provided at the end of the third center hole 512 close to the second center hole 511.

[0036] A rotating support 514 is disposed between the piston end 509 and the stop plug 516. The rotating support 514 is movably disposed within the first center hole 510. A return spring 515 is disposed between the rotating support 514 and the stop plug 516. The rotating support 514 comprises a support base and a planar bearing. Furthermore, a stop post is disposed between the rotating support 514 and the stop plug 516 to control the travel distance of the rotating support 514. The stop post is fixed to the stop plug 516.

[0037] When high-pressure water enters the first center hole 510 of the sealing sleeve 502 through the guide tube 2, the water flows through the guide groove 513 and enters the second center hole 511. The increased water pressure in the second center hole 511 pushes the piston end 509 backward, causing the water inlet hole 508 of the rotating shaft 503 to enter the second center hole 511. This causes the water to flow from the water inlet hole 508 into the guide hole 507 and then into the cleaning head 504. Finally, it is sprayed out from the inclined water spray hole 506 of the cleaning head 504, causing the cleaning head 504 to rotate and spray water. When the water flow stops, the piston end 509 returns to its original position under the elastic force of the return spring 515, causing the water inlet hole 508 of the rotating shaft 503 to enter the third center hole 512. The water inlet hole 508 is blocked by the wall of the third center hole 512, and water enters the cleaning head 504, causing leakage.

Claims

1. A device for cleaning the interior of a glycol radiator tube, comprising a high-pressure nozzle (1), characterized in that: The high-pressure nozzle (1) further comprises a guide pipe (2) connected to the high-pressure nozzle (1), a rotary nozzle (5) arranged at the end of the guide pipe (2), a first support mechanism (3) arranged at one end of the guide pipe (2) close to the rotary nozzle (5) and used for supporting the inside of the tube array, and a second support mechanism (4) arranged at the rear side of the first support mechanism (3) and used for supporting the tube outlet of the tube array, wherein the guide pipe (2) moves inside the tube array via the first support mechanism (3), and the second support mechanism (4) is fixedly arranged at the tube outlet relative to the first support mechanism (3); the high-pressure nozzle (1) comprises a housing (501) , a sealing sleeve (502) arranged in the housing (501), a rotating shaft (503) arranged in the sealing sleeve (502), a cleaning head (504) arranged at the front end of the rotating shaft (503), and a water spray hole (506) arranged on the cleaning head (504), wherein a guide hole (507) is arranged in the rotating shaft (503), a water storage chamber (505) is arranged in the cleaning head (504), the water spray hole (506) and the guide hole (507) are in communication with the water storage chamber (505), and a first center hole (510), a second center hole (511) and a second center hole (512) are sequentially arranged in the sealing sleeve (502). (511) and the third center hole (512), the apertures of the first center hole (510), the second center hole (511) and the third center hole (512) decrease in sequence, the rotating shaft (503) is arranged in the second center hole (511) and the third center hole (512), the rear end of the rotating shaft (503) is provided with a piston end (509) located in the third center hole (512), the third center hole (512) is provided with a limiting plug (516) located on the rear side of the piston end (509), the outside of the sealing sleeve (502) is provided with a guide groove (513), the guide groove (513) is provided on the outside of the sealing sleeve (502), and the guide groove (513) is provided on the outside of the sealing sleeve (502). The flow channel (513) is connected to the first center hole (510) and the second center hole (511); a water inlet hole (508) is provided on the side wall of the rotating shaft (503); the water inlet hole (508) is provided at the end of the third center hole (512) close to the second center hole (511); a rotating support seat (514) is provided between the piston end (509) and the limiting plug (516); the rotating support seat (514) is movably provided in the first center hole (510); and a return spring (515) is provided between the rotating support seat (514) and the limiting plug (516).

2. The device for cleaning the interior of a glycol radiator tube according to claim 1, characterized in that: The first supporting mechanism (3) comprises a first fixed sleeve (301) fixed on the guide tube (2), a plurality of running wheels (304) circumferentially distributed outside the first fixed sleeve (301), a first supporting arm (303) connected between the first fixed sleeve (301) and the running wheels (304), a first movable sleeve (302) movable on the guide tube (2) and movable forward and backward relative to the first fixed sleeve (301), a first transmission arm (305) connected between the first movable sleeve (302) and the first supporting arm (303), and an elastic member (307) for driving the first movable sleeve (302) to move toward the first fixed sleeve (301).

3. The device for cleaning the interior of a glycol radiator tube according to claim 2, characterized in that: The first supporting mechanism (3) further comprises a first adjusting sleeve (306), the first adjusting sleeve (306) being screwed onto the outside of the guide tube (2), the first movable sleeve (302) being located between the first fixed sleeve (301) and the first adjusting sleeve (306), and the elastic member (307) being connected between the first movable sleeve (302) and the first adjusting sleeve (306).

4. The device for cleaning the interior of a glycol radiator tube according to claim 3, characterized in that: The first movable sleeve (302) is provided with a first waterproof sleeve (308), the first adjustment sleeve (306) is provided with a second waterproof sleeve (309), the first waterproof sleeve (308) is sleeved on the outside of the second waterproof sleeve (309), and a sealing structure is provided between the first waterproof sleeve (308) and the second waterproof sleeve (309).

5. The device for cleaning the interior of a glycol radiator tube according to claim 4, characterized in that: The sealing structure comprises a pressure ring (311) movably arranged on the first waterproof cylinder (308), an elastic pressing member (310) connected to the pressure ring (311) and the first movable sleeve (302), a retaining ring (315) arranged on the inner wall of the second waterproof cylinder (309), and a sealing ring (312) arranged between the pressure ring (311) and the retaining ring (315).

6. The device for cleaning the interior of a glycol radiator tube according to claim 5, characterized in that: The inner ring of the pressure ring (311) is provided with a convex ring (313), the end surface of the retaining ring (315) is provided with an annular groove (314), and the convex ring (313) is embedded in the annular groove (314).

7. The device for cleaning the interior of a glycol radiator tube according to claim 1, characterized in that: The second supporting mechanism (4) comprises a second fixed sleeve (401) arranged on the guide tube (2), a second supporting arm (402) arranged radially along the second fixed sleeve (401), a supporting block (403) arranged at the end of the second supporting arm (402), a second movable sleeve (404) movably sleeved on the guide tube (2) and movable forward and backward relative to the second fixed sleeve (401), a second transmission arm (405) connected between the second supporting arm (402) and the second movable sleeve (404), and a second adjusting sleeve (406) screwed on the guide tube (2), wherein the second supporting arm (402) is a telescopic arm, and the second movable sleeve (404) is located between the second fixed sleeve (401) and the second adjusting sleeve (406).

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