CN114061363A

CN114061363A - Heat exchanger heat pipe cleaning equipment

Info

Publication number: CN114061363A
Application number: CN202111532229.6A
Authority: CN
Inventors: 王彤臣; 张军; 刘晓龙; 吴明星; 朱建斌; 李若鲲; 鲍宇; 汤利专; 于景志; 李恒敬; 张�雄
Original assignee: Hainan Nuclear Power Co Ltd
Current assignee: Hainan Nuclear Power Co Ltd
Priority date: 2021-12-14
Filing date: 2021-12-14
Publication date: 2022-02-18

Abstract

The invention relates to a heat exchanger heat conduction pipe cleaning device which comprises an inner shell, a rotating sleeve, an outer shell and a pushing rod, wherein the inner shell is provided with a fixing sleeve and a partition plate, the fixing sleeve is arranged on the top of the inner shell in a penetrating mode, the fixing sleeve is provided with a first one-way clamping piece, the partition plate is arranged inside the inner shell, the partition plate is provided with a double-shaft motor, one output shaft of the double-shaft motor penetrates out of the inner shell and is provided with a first gear, the other output shaft of the double-shaft motor is connected with a second gear, the rotating sleeve is arranged on the partition plate in a penetrating mode, a second gear ring meshed with the second gear is sleeved on the rotating sleeve, a sliding sleeve is arranged in the rotating sleeve through a reciprocating sliding mechanism and penetrates through the bottom of the inner shell, the sliding sleeve is provided with a second one-way clamping piece, the outer shell is rotatably sleeved on the inner shell, the top of the outer shell is provided with a first gear ring meshed with the first gear, and the pushing rod is clamped by the first one-way clamping piece and the second one-way clamping piece. Effectively solve the problem that the prior art needs to be manually cleaned to clean the heat conduction pipe, so that the labor intensity of operation is high, continuous operation is difficult, and the working efficiency is low.

Description

Heat exchanger heat pipe cleaning equipment

Technical Field

The invention belongs to the technical field of cleaning equipment, and particularly relates to cleaning equipment for a heat-conducting pipe of a heat exchanger.

Background

A large number of heat exchangers are installed in a nuclear power plant, a plurality of heat conduction pipes for heat exchange are arranged in the heat exchangers, and when heat exchange is carried out, the heat exchange area can be effectively increased by the aid of the heat conduction pipes, heat conduction efficiency is improved, and therefore the inner diameters of the heat conduction pipes are smaller. During daily use, dirt can be accumulated on the inner wall of the pipe, and if the pipe is not cleaned regularly, the heat transfer of the high-temperature fluid to the outside of the pipe can be influenced by excessive dirt. At present, utilize longer straight-bar brush to stretch into to lead to intraductal the abluent of cleaning, however, because heat exchanger's interior heat pipe is more, and the cleaning time is limited, for guaranteeing the normal operation of nuclear power plant, with the intraductal back of straight-bar brush insertion, need the manual work to drive the brush fast and clean at intraductal motion, its operation intensity of labour is big, is difficult to continuous operation, and work efficiency is low, and often is difficult for cleaning up the dirt on the pipe wall. Therefore, a cleaning device is urgently needed at present, and the automatic and quick cleaning of the heat conduction pipe is realized, so that the labor intensity is effectively reduced, and the cleaning effect and the cleaning efficiency are improved.

Disclosure of Invention

The invention provides a heat exchanger heat pipe cleaning device, which can automatically and quickly clean a heat pipe, effectively reduce the labor intensity and improve the cleaning effect and the cleaning efficiency.

A heat exchanger heat conduction pipe cleaning device comprises an inner shell, a rotating sleeve, an outer shell and a push rod, wherein the top and the middle of the inner shell are respectively provided with a fixing sleeve and a partition plate, the fixing sleeve is fixedly arranged on the top of the inner shell in a penetrating manner, the side wall of the fixing sleeve is provided with a first one-way clamping piece, the partition plate is arranged inside the inner shell, the partition plate is provided with a double-shaft motor, an output shaft of the double-shaft motor penetrates out of the inner shell and is provided with a first gear, the other output shaft of the double-shaft motor is connected with a second gear, the rotating sleeve is rotatably arranged on the partition plate in a penetrating manner, the rotating sleeve is sleeved with a second gear ring meshed with the second gear, a sliding sleeve is arranged in the rotating sleeve through a reciprocating sliding mechanism, the sliding sleeve penetrates through the bottom of the inner shell and is slidably connected with the inner shell, the side wall of the sliding sleeve is relatively provided with a second one-way clamping piece, the outer shell is rotatably sleeved on the inner shell, the top of the shell is provided with a first gear ring meshed with the first gear, two sides of the push rod are respectively clamped by a first one-way clamping piece and a second one-way clamping piece, and the end part of the push rod is provided with a sweeping and brushing piece.

Furthermore, the first one-way clamping piece comprises two first bolts which are relatively arranged on the side wall of the fixed sleeve in a penetrating mode, the first bolts are in threaded connection with the fixed sleeve, the end portions of the first bolts are rotatably connected with a U-shaped frame, a wheel shaft is fixedly arranged on the U-shaped frame in a penetrating mode, a clamping wheel is arranged on the wheel shaft, and the clamping wheel is connected with the wheel shaft through a one-way bearing.

Furthermore, the second one-way clamping piece comprises two second bolts which are relatively arranged on the side wall of the sliding sleeve in a penetrating mode, the second bolts are in threaded connection with the sliding sleeve, the end portion of each second bolt is rotatably connected with a U-shaped frame, a wheel shaft is fixedly arranged on each U-shaped frame in a penetrating mode, and a clamping wheel is arranged on each wheel shaft and is connected with the wheel shaft through a one-way bearing.

Further, the reciprocating sliding mechanism comprises a reciprocating cam groove arranged on the inner wall of the rotating sleeve and a sliding pin arranged on the sliding sleeve, and the reciprocating cam groove is matched with the sliding pin.

Furthermore, a sliding block is arranged on the sliding sleeve, and a sliding groove matched with the sliding groove is formed in the bottom of the inner shell.

Furthermore, a support is arranged at the bottom of the shell, and a positioning sleeve is arranged on the support.

Furthermore, the bottom of the shell is provided with an annular cylinder cavity, an annular piston is arranged in the annular cylinder cavity, an L-shaped piston rod is arranged on the annular piston and connected with the sliding sleeve, the bottom of the shell is provided with a water inlet one-way valve and a water outlet one-way valve which are communicated with the annular cylinder cavity, a water inlet hose is connected onto the water inlet one-way valve, a water outlet pipe is connected onto the water outlet one-way valve, a plurality of nozzles are arranged on the inner wall of the positioning sleeve at intervals, an annular communicating cavity communicated with the nozzles is arranged in the positioning sleeve, and the annular communicating cavity is communicated with the water outlet pipe.

Furthermore, a speed reducer is arranged on the partition plate and connected with the double-shaft motor, and the second gear is arranged on an output shaft of the speed reducer.

Compared with the prior art, the invention has the beneficial effects that:

1. the double-shaft motor is utilized to drive the first gear and the second gear to rotate, so that the double-shaft motor drives the inner shell to rotate in the outer shell, the inner shell drives the push rod to rotate through the first one-way clamping component and the second one-way clamping component and brushes the interior of the tube, meanwhile, the second gear drives the rotating sleeve to rotate on the partition plate, the rotating sleeve drives the sliding sleeve to slide up and down on the inner shell, under the matching action of the first one-way clamping piece and the second one-way clamping piece, the pushing rod is continuously pushed into the heat conduction pipe in the rotary sweeping process, so that the automatic cleaning of the heat conduction pipe is realized, when the pushing rod pushes the sweeping part to the tail end of the heat conducting pipe, the cleaning can be finished without excessive manual intervention, the operation is simple, the labor intensity of the cleaning work is effectively reduced, and can carry out high-speed rotatory brush and propulsion in succession, the cleaning efficiency is high, the cleaning performance is good, is applicable to continuous operation under the time-critical condition.

2. At the brush in-process sliding sleeve reciprocating sliding on the inner shell, the sliding sleeve drives annular piston and slides in annular jar chamber, under the mating action of inlet check valve and drainage check valve, annular piston constantly absorbs water and carries and spray to the nozzle to the heat pipe, under the cooperation of brush cleaning, can more effectual clearance detach the dirt that the pipe was kept away, it is good to increase the cleaning performance, and need not wash by water alone after the brush cleaning again, its cleaning process is few, improve the cleaning efficiency, in addition its start-up and the stopping of spraying water do not need the independent control, the cleaning operation is simple, and its total water spray volume is synchronous in the total propulsion volume of propelling movement pole, when effectively guaranteeing the cleaning performance, avoid the waste of water resource.

Drawings

FIG. 1 is a schematic view of the overall structure of the present invention in a cleaning state;

FIG. 2 is an enlarged view of FIG. 1 at A;

FIG. 3 is an enlarged view of FIG. 1 at B;

FIG. 4 is a sectional view taken along line F-F in FIG. 3;

FIG. 5 is an enlarged view of FIG. 1 at C;

FIG. 6 is an enlarged view of FIG. 1 at D;

FIG. 7 is a schematic structural view of the swivel sleeve;

in the figure: 1. an inner shell; 2. a speed reducer; 3. a double-shaft motor; 4. a first gear; 5. a first ring gear; 6. a housing, 7, an L-shaped piston rod; 8. an annular cylinder chamber; 9. an annular piston; 10. a water inlet one-way valve; 11. a drain check valve; 12. a drain pipe; 13. a support; 14. a sliding sleeve; 15. a partition plate; 16. fixing a sleeve; 17. a push rod; 18. a slide pin; 19. rotating the sleeve; 20. a second gear; 21. a second ring gear; 22. a pinch roller; 23. a wheel axle; 24. a U-shaped frame; 25. a second bolt; 26. an annular communicating chamber; 27. a nozzle; 28. a heat conducting pipe; 29. a brushing member; 30. a slider; 31. a chute; 32. a first bolt; 33. a reciprocating cam groove; 34. a positioning sleeve.

Detailed Description

In order to better understand the technical content of the invention, specific embodiments are provided below, and the invention is further described with reference to the accompanying drawings.

Referring to fig. 1 to 7, the invention provides a heat exchanger heat pipe cleaning device, comprising an inner shell 1, a rotating sleeve 19, an outer shell 6 and a push rod 17, wherein the top and the middle of the inner shell 1 are respectively provided with a fixed sleeve 16 and a partition plate 15, the fixed sleeve 16 is fixedly arranged on the top of the inner shell 1 in a penetrating way, the side wall of the fixed sleeve 16 is provided with a first one-way clamping piece, after the push rod 17 is clamped by the first one-way clamping piece, the push rod 17 can only slide downwards on the first one-way clamping piece, the movement of the push rod in the direction is limited, the partition plate 15 is arranged in the inner shell 1, the partition plate 15 is provided with a double-shaft motor 3, one output shaft of the double-shaft motor 3 penetrates through the inner shell 1 and is provided with a first gear 4, the output shaft at the end is rotatably connected with the side wall of the inner shell 1, the other output shaft of the double-shaft motor 3 is connected with a second gear 20, the rotating sleeve 19 is rotatably arranged on the partition plate 15, a second gear 21 meshed with the second gear 20 is sleeved on the rotating sleeve 19, a sliding sleeve 14 is arranged in the rotating sleeve 19 through a reciprocating sliding mechanism, the sliding sleeve 14 penetrates through the bottom of the inner shell 1 and is in sliding connection with the bottom of the inner shell, the sliding sleeve 14 can only slide at the bottom of the inner shell 1 but cannot rotate at the bottom of the inner shell 1, a second one-way clamping piece is arranged on the side wall of the sliding sleeve 14, after the pushing rod 17 is clamped by the second one-way clamping piece, the pushing rod 17 can only slide downwards on the second one-way clamping piece, the outer shell 6 is rotatably sleeved on the inner shell 1, a first gear ring 5 meshed with the first gear 4 is arranged at the top of the outer shell 6, two sides of the pushing rod 17 are respectively clamped by the first one-way clamping piece and the second one-way clamping piece, a sweeping piece 29 is arranged on the end part of the pushing rod 17, and the sweeping piece 29 can be a brush, a steel brush or a wiping cloth and the like in the prior art.

When cleaning is needed, an operator holds the outer shell 6 with a hand, the brushing part 29 extends into the port of the heat conduction pipe 28, the first gear 4 and the second gear 20 are driven to rotate simultaneously through the double-shaft motor 3, the outer shell 6 is rotatably connected with the inner shell 1 due to the fact that the first gear 4 is meshed with the first gear ring 5, the first gear ring 5 is fixedly connected with the outer shell 6, the double-shaft motor 3 drives the inner shell 1 to rotate in the outer shell 6, the inner shell 1 simultaneously drives the fixed sleeve 16 and the sliding sleeve 14 to rotate, the fixed sleeve 16 and the sliding sleeve 14 respectively drive the pushing rod 17 to rotate through the first one-way clamping part and the second one-way clamping part, and the pushing rod 17 drives the brushing part 29 to rotate so as to perform rotary brushing; in the process, the second gear 20 drives the rotating sleeve 19 to rotate on the partition 15 through the second gear ring 21, the rotating sleeve 19 drives the sliding sleeve 14 to slide up and down on the bottom of the inner shell 1 under the action of the reciprocating sliding mechanism, when the sliding sleeve 14 drives the first one-way clamping piece to slide up, the second one-way clamping piece limits the pushing rod 17 to slide up on the pushing rod 17, so that the sliding sleeve 14 drives the first one-way clamping piece to slide up on the pushing rod 17, and in the process that the sliding sleeve 14 slides up, the sweeping and brushing piece 29 is kept at the current position for sweeping and brushing, and the cleaning effect of dirt on the inner wall of the pipe is ensured; when the sliding sleeve 14 drives the second one-way clamping piece to slide downwards, the second one-way clamping piece limits the pushing rod 17 to slide upwards on the second one-way clamping piece, so that the second one-way clamping piece drives the pushing rod 17 to slide downwards to realize pushing, the pushing rod 17 pushes the brushing piece 29 to enter the next position to perform rotary brushing, the heat conduction pipe 28 is automatically cleaned, the cleaning can be completed when the pushing rod 17 pushes the brushing piece 29 to the tail end of the heat conduction pipe 28, excessive manual intervention is not needed, the operation is simple, the labor intensity of cleaning work is effectively reduced, high-speed rotary brushing and pushing can be continuously performed, the cleaning efficiency is high, the cleaning effect is good, and the device is suitable for continuous operation under the condition of time pressure.

Specifically, the first one-way clamping member includes two first bolts 32 relatively penetrating through the side wall of the fixing sleeve 16, the first bolts 32 are in threaded connection with the fixing sleeve 16, the end of the first bolt 32 is rotatably connected with a U-shaped frame 24, the first bolts 32 on both sides are twisted to be screwed in or out of the fixing sleeve 16, so that the first bolts 32 rotate relative to the U-shaped frame 24 and drive the U-shaped frame 24 to approach or separate from the push rod 17, a wheel shaft 23 is fixedly penetrating through the U-shaped frame 24, a clamping wheel 22 is arranged on the wheel shaft 23, the U-shaped frame 24 drives the clamping wheel 22 to clamp or loosen the push rod 17 through the wheel shaft 23, a clamping groove matched with the push rod 17 is arranged on the clamping wheel 22, so that after the push rod 17 is clamped by the two clamping wheels 22, the push rod 17 is not easy to rotate between the two clamping wheels 22, the clamping wheel 22 is connected with the wheel shaft 23 through a one-way bearing, the clamping wheel 22 can only rotate on the wheel shaft 23 in one way through the one-way bearing (clockwise direction in fig. 1), the push rod 17 clamped between the two clamping wheels 22 can only slide downwards, the clamping force on the push rod 17 can be adjusted by twisting the first bolt 32, the push rod 17 is prevented from rotating relative to the clamping wheels 22, the cleaning effect is improved, and in addition, the first bolt 32 can be loosened when the push rod 17 is clamped again, so that the operation of half clamping again is facilitated.

Specifically, the second one-way clamping piece comprises a second bolt 25 which is relatively arranged on the side wall of the sliding sleeve 14 in a penetrating way, the second bolt 25 is in threaded connection with the sliding sleeve 14, the end part of the second bolt 25 is rotatably connected with a U-shaped frame 24, a wheel shaft 23 is fixedly arranged on the U-shaped frame 24 in a penetrating way, the second bolts 25 at two sides are twisted to lead the second bolts 25 to be screwed in or out of the fixed sleeve 16, the second bolts 25 rotate relative to the U-shaped frame 24 and drive the U-shaped frame 24 to be close to or far away from the push rod 17, the U-shaped frame 24 is fixedly provided with the wheel shaft 23 in a penetrating way, the wheel shaft 23 is provided with the clamping wheel 22, the clamping wheel 22 is connected with the wheel shaft 23 through the one-way bearing, the clamping force to the push rod 17 can be adjusted by twisting the second bolts 25, the push rod 17 is prevented from rotating between the two clamping wheels 22, the cleaning effect is improved, in addition, when the pushing rod 17 is clamped again, the first bolt 32 and the second bolt 25 can be simultaneously loosened, so that the half clamping operation is convenient to perform again.

Specifically, the reciprocating sliding mechanism comprises a reciprocating cam groove 33 arranged on the inner wall of the rotating sleeve 19 and a sliding pin 18 arranged on the sliding sleeve 14, the reciprocating cam groove 33 is matched with the sliding pin 18, in the rotating process of the rotating sleeve 19, the sliding pin 18 continuously slides in the reciprocating cam groove, and the sliding pin 18 drives the bottom of the inner shell 1 of the rotating sleeve 19 to slide up and down.

Specifically, the sliding sleeve 14 is provided with a sliding block 30, the bottom of the inner shell 1 is provided with a sliding groove 31 matched with the sliding groove 31, and the sliding block 30 slides in the sliding groove 31 to enable the sliding sleeve 14 to only slide up and down at the bottom of the inner shell 1.

Specifically, the bottom of the housing 6 is provided with the support 13, the support 13 is provided with the positioning sleeve 34, the positioning sleeve 34 is aligned with the sliding sleeve 14, the positioning sleeve 34 is in a conical structure, and the positioning sleeve 34 is abutted against the end of the heat conducting pipe 28 during cleaning, so that the cleaning and positioning operation is facilitated.

Specifically, the bottom of the shell 6 is provided with an annular cylinder cavity 8, an annular piston 9 is arranged in the annular cylinder cavity 8, the annular piston 9 is provided with an L-shaped piston rod 7, the L-shaped piston rod 7 is connected with a sliding sleeve 14, the sliding sleeve 14 drives the annular piston 9 to rotate in the annular cylinder cavity 8 through the L-shaped piston rod 7, simultaneously the sliding sleeve 14 slides up and down and drives the annular piston 9 to slide in the annular cylinder cavity 8, the bottom of the shell 6 is provided with a water inlet check valve 10 and a water outlet check valve 11 which are communicated with the annular cylinder cavity 8, the water inlet check valve 10 is connected with a water inlet hose (not marked in the figure), the annular piston 9 sucks water into the annular cylinder cavity 8 through the water inlet hose under the matching action of the water inlet check valve 10 and the water outlet check valve 11 in the upward sliding process, the water outlet check valve 11 is connected with a water outlet pipe 12, a plurality of nozzles 27 are arranged on the inner wall of the positioning sleeve 34 at intervals, an annular communicating cavity 26 communicated with the nozzles 27 is arranged in the positioning sleeve 34, annular intercommunication chamber 26 communicates with drain pipe 12, annular piston 9 in the downward slip process, the water in annular cylinder chamber 8 is impressed in drain pipe 12 again and is carried in annular intercommunication chamber 26, annular intercommunication chamber 26 distributes water to each nozzle 27 and sprays the heat pipe, under the cooperation of rotatory brush sweeper, can more effectually clear away the dirt that the pipe was kept away, and need not carry out solitary washing after the brush sweeper is cleaned, reduce the washing step, improve cleaning performance and cleaning efficiency, in addition its start-up and the stopping of spraying water do not need the independent control, the operation is simple, and its total water spray volume is synchronous in the total propulsion volume of propelling movement pole 17, when guaranteeing the cleaning performance, the waste of water resource has effectively been avoided.

Specifically, the speed reducer 2 is arranged on the partition 15, the speed reducer 2 is connected with the double-shaft motor 3, the second gear 20 is arranged on an output shaft of the speed reducer 2, the sliding speed of the sliding sleeve 14 and the rotation speed difference of the inner shell 1 are increased by using the speed reducer 2, the brushing frequency in a fixed distance of the heat conduction pipe 28 is effectively increased, and the cleaning effect is improved.

The foregoing is only a preferred embodiment of the present invention, and it should be noted that, for those skilled in the art, various modifications and decorations can be made without departing from the technical principle of the present invention, and these modifications and decorations should also be regarded as the protection scope of the present invention.

Claims

1. A heat exchanger heat conductive pipe cleaning apparatus characterized in that: the device comprises an inner shell, a rotating sleeve, an outer shell and a pushing rod, wherein the top and the middle part of the inner shell are respectively provided with a fixing sleeve and a partition plate, the fixing sleeve is fixedly arranged on the top of the inner shell in a penetrating manner, the side wall of the fixing sleeve is provided with a first one-way clamping piece, the partition plate is arranged in the inner shell, the partition plate is provided with a double-shaft motor, one output shaft of the double-shaft motor penetrates out of the inner shell and is provided with a first gear, the other output shaft of the double-shaft motor is connected with a second gear, the rotating sleeve is rotatably arranged on the partition plate in a penetrating manner, the rotating sleeve is sleeved with a second gear ring meshed with the second gear, a sliding sleeve is arranged in the rotating sleeve through a reciprocating sliding mechanism, the sliding sleeve penetrates through the bottom of the inner shell and is in sliding connection with the inner shell, the side wall of the sliding sleeve is provided with a second one-way clamping piece, the outer shell is rotatably sleeved on the inner shell, the top of the outer shell is provided with a first gear ring meshed with the first gear, the two sides of the push rod are respectively clamped by the first one-way clamping piece and the second one-way clamping piece, and the end parts of the push rod are provided with brushing pieces.

2. A heat exchanger heat transfer pipe cleaning apparatus according to claim 1, wherein: the first one-way clamping piece comprises two first bolts which penetrate through the side wall of the fixed sleeve relatively, the first bolts are in threaded connection with the fixed sleeve, the end parts of the first bolts are rotatably connected with a U-shaped frame, a wheel shaft is fixedly penetrated through the U-shaped frame, a clamping wheel is arranged on the wheel shaft, and the clamping wheel is connected with the wheel shaft through a one-way bearing.

3. A heat exchanger heat transfer pipe cleaning apparatus according to claim 1, wherein: the second one-way clamping piece comprises two second bolts which penetrate through the side wall of the sliding sleeve relatively, the second bolts are in threaded connection with the sliding sleeve, the end part of each second bolt is rotatably connected with a U-shaped frame, a wheel shaft penetrates through the U-shaped frame fixedly, a clamping wheel is arranged on the wheel shaft, and the clamping wheel is connected with the wheel shaft through a one-way bearing.

4. A heat exchanger heat transfer pipe cleaning apparatus according to claim 1, wherein: reciprocating slide mechanism is including locating reciprocal cam groove on changeing the cover inner wall with locate sliding pin on the sliding sleeve, reciprocal cam groove with sliding pin phase-match.

5. A heat exchanger heat transfer pipe cleaning apparatus according to claim 1, wherein: the sliding sleeve is provided with a sliding block, and the bottom of the inner shell is provided with a sliding groove matched with the sliding groove.

6. A heat exchanger heat transfer pipe cleaning apparatus according to claim 1, wherein: the bottom of the shell is provided with a support, and the support is provided with a positioning sleeve.

7. A heat exchanger heat transfer pipe cleaning apparatus according to claim 6, wherein: the improved water-saving device is characterized in that an annular cylinder cavity is formed in the bottom of the shell, an annular piston is arranged in the annular cylinder cavity, an L-shaped piston rod is arranged on the annular piston, the L-shaped piston rod is connected with the sliding sleeve, a water inlet check valve and a water discharge check valve which are communicated with the annular cylinder cavity are arranged at the bottom of the shell, a water inlet hose is connected onto the water inlet check valve, a water discharge pipe is connected onto the water discharge check valve, a plurality of nozzles are arranged on the inner wall of the positioning sleeve at intervals, an annular communicating cavity communicated with the nozzles is formed in the positioning sleeve, and the annular communicating cavity is communicated with the water discharge pipe.

8. A heat exchanger heat transfer pipe cleaning apparatus according to claim 1, wherein: the baffle is provided with a speed reducer, the speed reducer is connected with the double-shaft motor, and the second gear is arranged on an output shaft of the speed reducer.