CN109870067B - System for automatically cleaning heat exchange tube and using method thereof - Google Patents
System for automatically cleaning heat exchange tube and using method thereof Download PDFInfo
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- CN109870067B CN109870067B CN201711250377.2A CN201711250377A CN109870067B CN 109870067 B CN109870067 B CN 109870067B CN 201711250377 A CN201711250377 A CN 201711250377A CN 109870067 B CN109870067 B CN 109870067B
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Abstract
The invention relates to the technical field of heat exchanger cleaning equipment, and provides a system for automatically cleaning a heat exchange tube and a using method thereof. The system comprises an underframe, a control device, a scanning imaging device, a lifting driving device, a horizontal driving device, an axial driving device and a rotary driving device, wherein the scanning imaging device, the lifting driving device, the horizontal driving device, the axial driving device and the rotary driving device are respectively and electrically connected with the control device; the scanning imaging device is used for scanning the core body of the heat exchanger to be cleaned so as to obtain a three-dimensional image of the core body of the heat exchanger to be cleaned; the lifting driving device is connected with the bottom frame and is used for driving the horizontal driving device to move up and down; the horizontal driving device is connected with the axial driving device and is used for driving the axial driving device to move along the axial direction vertical to the spray rod sleeve; the axial driving device is used for driving the spray rod to move along the axial direction of the spray rod sleeve; the rotation driving device is used for driving the core body of the heat exchanger to be cleaned to rotate. The invention realizes the quick, accurate and efficient cleaning of the heat exchange pipe, reduces the requirement on the operation level of workers and improves the safety and the cleaning efficiency.
Description
Technical Field
The invention relates to the technical field of heat exchanger cleaning equipment, in particular to a system for automatically cleaning a heat exchange tube and a using method thereof.
Background
The shell-and-tube heat exchanger in the fields of petroleum refining, coal chemical industry, petrochemical industry and the like has become a heat exchanger with the most extensive application. However, after the material runs in the heat exchange tube for a period of time, some dirt can be attached to the inner wall of the heat exchange tube, the actual flow cross section area of the heat exchange tube is reduced by the dirt, and then the heat exchange efficiency is obviously reduced, and even the production can not be normally carried out.
At present, the cleaning of the heat exchanger tube bundle generally adopts two modes of manual operation and mechanical operation. The manual operation is that workers hold the flexible hose or the spray rod by hands to spray high-pressure water into the heat exchange tube to clean the heat exchange tube, and the mode is low in working efficiency and easy to cause injury accidents; the mechanical operation is that the staff passes through hydraulic motor or pneumatic motor drive flexible hose or spray lance and removes along the heat exchange tube and wash the heat exchange tube, and this kind of mode has very high requirement to staff's level of operation itself, and the hole deviation will damage flexible hose or spray lance slightly, still can damage the heat exchange tube even.
Disclosure of Invention
The invention aims to solve the technical problems of low cleaning efficiency and poor safety of a heat exchange tube and high requirement on the operation level of workers in the prior art.
In order to solve the problems, the invention provides a system for automatically cleaning a heat exchange tube, which comprises a chassis, a control device, a scanning imaging device, a lifting driving device, a horizontal driving device, a rotary driving device, an axial driving device, a spray rod sleeve arranged on the axial driving device and a spray rod inserted in the spray rod sleeve;
the scanning imaging device is connected with one end, facing the core body of the heat exchanger to be cleaned, of the axial driving device, and is used for scanning the core body of the heat exchanger to be cleaned so as to obtain a three-dimensional image of the core body of the heat exchanger to be cleaned;
the lifting driving device is connected with the bottom frame and is used for driving the horizontal driving device to move up and down;
the horizontal driving device is connected with the axial driving device and is used for driving the axial driving device to move along the axial direction vertical to the spray rod sleeve;
the axial driving device is used for driving the spray rod to move along the axial direction of the spray rod sleeve;
the rotation driving device is used for driving the core body of the heat exchanger to be cleaned to rotate;
the control device is respectively electrically connected with the scanning imaging device, the lifting driving device, the horizontal driving device, the axial driving device and the rotary driving device.
The lifting driving device comprises two lifting driving units which are arranged on two sides of the horizontal driving device respectively, each lifting driving unit comprises a cross beam, a lifting slide rod, a lifting slider and a lifting motor, one end of each lifting slide rod is connected with the bottom of the bottom frame, the other end of each lifting slide rod penetrates through the lifting slider and then is connected with the top of the bottom frame, one side of each cross beam is connected with the lifting slider, the other side of each cross beam is connected with the horizontal driving device, and each lifting motor is connected with the lifting slider and the control device respectively.
The horizontal driving device comprises a horizontal sliding rod, a horizontal sliding block and a horizontal motor, one end of the horizontal sliding rod is connected with one of the cross beams, the other end of the horizontal sliding rod penetrates through the horizontal sliding block and then is connected with the other cross beam, the horizontal sliding block is connected with the axial driving device, and the horizontal motor is respectively connected with the horizontal sliding block and the control device.
The rotary driving device comprises a roller shaft seat, a rotary motor and two roller shafts, the two roller shafts are respectively arranged on two sides of the top of the roller shaft seat, and the rotary motor is respectively connected with the roller shafts and the control device.
The water pump and the coil pipe device are coiled with a hose, one end of the hose is connected with the water pump, the other end of the hose is connected with the spray rod, and the water pump is connected with the control device.
The axial driving device comprises a sliding block seat, a first driving wheel, a first driven wheel, a second driving wheel, a second driven wheel, a driving shaft, a driven shaft, a servo motor, and a first chain and a second chain which are oppositely arranged; the first driving wheel is in transmission connection with the first driven wheel through the first chain, and the second driving wheel is in transmission connection with the second driven wheel through the second chain; one end of the driving shaft penetrates through the first end of the first guide rail to be connected with the first driving wheel, the other end of the driving shaft penetrates through the first end of the second guide rail to be connected with the second driving wheel, one end of the driven shaft penetrates through the second end of the first guide rail to be connected with the first driven wheel, and the other end of the driven shaft penetrates through the second end of the second guide rail to be connected with the second driven wheel; the servo motor is respectively connected with the driving shaft and the control device, and the bottom surfaces of the first guide rail and the second guide rail are both connected with the horizontal driving device; the two ends of the sliding block seat are respectively connected with the first chain and the second chain, sliding blocks which are connected with the first guide rail and the second guide rail in a sliding mode are respectively arranged on the two sides of the bottom of the sliding block seat, the spray rod sleeve is arranged on the sliding block seat, slits which are parallel to the axial direction of the spray rod sleeve are respectively arranged on the two sides of the spray rod sleeve, connecting plates which correspond to the slits in a one-to-one mode are arranged on the spray rod, and the connecting plates penetrate through the corresponding slits and are connected with the sliding block seat.
The two ends of the sliding block seat are respectively connected with the first chain and the second chain through connecting buckles, inserting rods are arranged on the inner sides of the first chain and the second chain, first through holes used for inserting the inserting rods are formed in the connecting buckles, and grooves corresponding to the first through holes in a one-to-one mode are formed in the sliding block seat.
The spray rod sleeve is arranged in the spray rod sleeve, and the spray rod sleeve is arranged in the spray rod sleeve.
The electromagnetic lock is connected with the control device, the connecting seat is arranged between the connecting plate and the sliding block seat, the electromagnetic lock and the connecting seat are respectively connected with the top of the connecting plate and the top of the sliding block seat, a second through hole used for inserting a lock head of the electromagnetic lock is formed in the connecting plate, and limiting grooves in one-to-one correspondence with the second through holes are formed in the connecting seat.
In order to solve the problems, the invention also provides a using method of the system for automatically cleaning the heat exchange tube, which comprises the following steps:
s1, starting the scanning imaging device to acquire a three-dimensional image of the core body of the heat exchanger to be cleaned, and jumping to execute the step S2;
s2, judging whether an included angle exists between a plane where the same layer of heat exchange tubes in the core body of the heat exchanger to be cleaned is located and a horizontal plane, if so, skipping to execute the step S3, and if not, executing the step S4;
s3, starting a rotary driving device to drive the core body of the heat exchanger to be cleaned to rotate by a specified angle, and jumping to execute the step S4;
s4, judging whether the height of the heat exchange tube to be cleaned in the core of the heat exchanger to be cleaned is different from that of the spray rod or not, if so, executing a step S5, otherwise, executing a step S6;
s5, starting the lifting driving device to drive the horizontal driving device to move upwards or downwards for a designated height, and jumping to execute the step S6;
s6, judging whether the heat exchange tube to be cleaned and the spray rod are coaxial, if so, executing a step S7, otherwise, executing a step S10;
s7, starting an axial driving device to drive the spray rod to move forwards for a first designated distance along the axial direction of the spray rod sleeve, and jumping to execute the step S8;
s8, starting an axial driving device to drive the spray rod to move backwards for a second designated distance along the axial direction of the spray rod sleeve, and jumping to execute the step S9;
s9, judging whether the height of the next heat exchange tube to be cleaned in the core of the heat exchanger to be cleaned is different from the height of the spray rod, if so, executing a step S5, otherwise, executing a step S6;
s10, starting the horizontal driving device to drive the axial driving device to move a designated horizontal distance along the axial direction perpendicular to the spray rod sleeve, and jumping to execute the step S7.
Firstly, acquiring a three-dimensional image of a core body of a heat exchanger to be cleaned through a scanning imaging device; then, the core body of the heat exchanger to be cleaned is driven to automatically transmit through the rotary driving device, so that the plane where the same layer of heat exchange tubes in the core body of the heat exchanger to be cleaned are located is parallel to the horizontal plane; then, the horizontal driving device is driven to move up and down through the lifting driving device, so that the axis of the heat exchange tube to be cleaned and the axis of the spray rod are positioned on the same horizontal plane; then, the horizontal driving device drives the axial driving device to move left and right, so that the heat exchange tube to be cleaned is coaxial with the spray rod; finally, the spray rod is driven by the axial driving device to move back and forth along the axial direction of the spray rod sleeve, so that the heat exchange pipe can be cleaned quickly, accurately and efficiently, the requirement on the operation level of workers can be reduced, the safety is improved, the labor intensity of the workers can be obviously reduced, and the cleaning efficiency is improved.
Drawings
Fig. 1 is an isometric schematic view of a system for automatically cleaning heat exchange tubes in accordance with example 1 of the present invention;
fig. 2 is a front view of a system for automatically cleaning a heat exchange pipe in embodiment 1 of the present invention;
fig. 3 is a three-dimensional image of a core of a heat exchanger to be cleaned, which is acquired by the scanning imaging device in embodiment 1 of the present invention;
FIG. 4 is an enlarged view of FIG. 1 at A;
FIG. 5 is a schematic view of a slider holder according to embodiment 1 of the present invention;
fig. 6 is a partial schematic structural view of an axial drive apparatus according to embodiment 1 of the present invention.
Reference numerals:
1. a chassis; 2. scanning an imaging device; 3-1, lifting a sliding rod; 3-2, lifting the sliding block;
3-3, a cross beam; 4-1, horizontal sliding bar; 4-2, horizontal sliding block; 5-1, a first chain;
5-2, a second chain; 5-3, a first driving wheel; 5-4, a first guide rail;
5-5, a second guide rail; 5-6, a sliding block seat; 5-7, a sliding block; 5-8, connecting plates;
5-9, connecting buckles; 5-10, electromagnetic lock; 5-11, a connecting seat; 5-12, driving shaft;
5-13, a servo motor; 5-14, a speed reducer; 6. a rotation driving device; 7. a spray rod sleeve;
8. a spray rod; 9. a control device; 10. a core body of a heat exchanger to be cleaned;
10-1, heat exchange tubes; 11. a pipe coiling device; 12. a camera; 13. a high pressure water dispenser.
Detailed Description
In order to make the objects, technical solutions and advantages of the present invention clearer, the technical solutions of the present invention will be described below with reference to the accompanying drawings, and it is obvious that the described embodiments are some embodiments of the present invention, but not all embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
In the description of the present invention, unless otherwise specified, the terms "top", "bottom", "front", "back", "left", "right", and the like, indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience in describing the present invention and simplifying the description, but do not indicate or imply that the referred device or element must have a specific orientation, be constructed in a specific orientation, and be operated, and thus, should not be construed as limiting the present invention.
It is to be understood that, unless otherwise expressly stated or limited, the term "coupled" is used in a generic sense as defined herein, e.g., fixedly attached or removably attached or integrally attached; may be directly connected or indirectly connected through an intermediate. The specific meaning of the above terms in the present invention can be understood in specific cases to those skilled in the art.
Example 1
Referring to fig. 1 and 2, the present invention provides a system for automatically cleaning a heat exchange tube, which includes a chassis 1, a control device 9, a scanning imaging device 2, a lifting driving device, a horizontal driving device, a rotary driving device 6, an axial driving device, a spray rod sleeve 7 disposed on the axial driving device, and a spray rod 8 inserted in the spray rod sleeve 7;
the scanning imaging device 2 is connected with one end, facing the core 10 of the heat exchanger to be cleaned, of the axial driving device, and the scanning imaging device 2 is used for scanning the core 10 of the heat exchanger to be cleaned so as to obtain a three-dimensional image of the core 10 of the heat exchanger to be cleaned;
the lifting driving device is connected with the bottom frame 1 and is used for driving the horizontal driving device to move up and down;
the horizontal driving device is connected with the axial driving device and is used for driving the axial driving device to move along the axial direction vertical to the spray rod sleeve 7, namely to move left and right;
the axial driving device is used for driving the spray rod 8 to move along the axial direction of the spray rod sleeve 7;
the rotation driving device 6 is used for driving the core body 10 of the heat exchanger to be cleaned to rotate;
the control device 9 is electrically connected with the scanning imaging device 2, the lifting driving device, the horizontal driving device, the axial driving device and the rotary driving device 6 respectively.
Thus, during installation: firstly, carrying out an electrifying test on the control device 9, the scanning imaging device 2, the lifting driving device, the horizontal driving device, the rotary driving device 6 and the axial driving device, and eliminating corresponding faults; then, the heat exchanger with the tube box removed, i.e., the core 10 of the heat exchanger to be cleaned, is placed on the rotary driving device 6; finally, the spray bar 8 is communicated with an external water supply pipe.
When in use:
first, the scanning imaging device 2 is activated to acquire a three-dimensional image of the core 10 of the heat exchanger to be cleaned. Specifically, as shown in fig. 3, the scanning imaging device 2 can generate a three-dimensional image of the core 10 of the heat exchanger to be cleaned by scanning an included angle between a plane where the same layer of heat exchange tubes 10-1 in the core 10 of the heat exchanger to be cleaned is located and a horizontal plane, the inner diameter, the number and the arrangement mode of the heat exchange tubes 10-1, and the tube diameter and the length of the core 10 of the heat exchanger to be cleaned.
Then, the control device 9 controls the lifting drive device, the horizontal drive device, the rotary drive device 6 and the axial drive device to perform corresponding actions according to the three-dimensional image of the core 10 of the heat exchanger to be cleaned. Specifically, when an included angle is formed between the plane where the same layer of heat exchange tubes 10-1 in the core 10 of the heat exchanger to be cleaned is located and the horizontal plane, that is, the plane where the same layer of heat exchange tubes 10-1 in the core 10 of the heat exchanger to be cleaned is located is not parallel to the horizontal plane, the control device 9 controls the rotation driving device 6 to be started, so that the plane where the same layer of heat exchange tubes 10-1 in the core of the heat exchanger to be cleaned is located and the horizontal plane are kept parallel after the core 10 of the heat exchanger to be cleaned is rotated by a specified angle under the driving of the rotation driving device 6. When the height of a heat exchange tube 10-1 to be cleaned in a core 10 of the heat exchanger to be cleaned is different from the height of the spray rod 8, namely the axis of the heat exchange tube 10-1 to be cleaned is not in the same horizontal plane as the axis of the spray rod 8, the control device 9 controls the lifting drive device to start; because the horizontal driving device, the axial driving device and the lifting driving device move synchronously, when the lifting driving device drives the horizontal driving device to move upwards or downwards, the axial driving device moves simultaneously, and the spray rod 8 arranged on the axial driving device gradually approaches to the plane where the heat exchange tube 10-1 to be cleaned is located until the axis of the heat exchange tube 10-1 to be cleaned and the axis of the spray rod 8 are in the same horizontal plane. When the heat exchange tube 10-1 to be cleaned is not coaxial with the spray rod 8, namely the spray rod 8 is positioned at the left side or the right side of the heat exchange tube 10-1 to be cleaned, the control device 9 controls the horizontal driving device to be started, so that the heat exchange tube 10-1 to be cleaned is coaxial with the spray rod 8 after the axial driving device is driven by the horizontal driving device to move along the axial direction vertical to the spray rod sleeve 7, namely move leftwards or rightwards for a specified horizontal distance. When the heat exchange tube 10-1 to be cleaned is coaxial with the spray rod 8, the control device 9 controls the axial driving device to drive the spray rod 8 to move forwards for a first designated distance, namely, the spray rod 8 is driven to move towards the heat exchange tube 10-1 to be cleaned for the first designated distance, and in the process that the spray rod 8 moves in the heat exchange tube 10-1 to be cleaned, the spray rod 8 can continuously spray clean water to wash off dirt on the inner wall of the heat exchange tube 10-1 to be cleaned.
Then, the control device 9 controls the axial driving device to drive the spray rod 8 to move backwards for a second designated distance so as to withdraw the heat exchange pipe 10-1 to be cleaned.
Next, the control means 9 controls the elevation driving means, the horizontal driving means, and the axial driving means to repeat the above steps to clean the remaining heat exchange tubes 10-1 one by one.
Finally, after all the heat exchange tubes 10-1 are cleaned, the core 10 of the heat exchanger to be cleaned can be lifted away from the rotary driving device 6.
Firstly, acquiring a three-dimensional image of a core body 10 of a heat exchanger to be cleaned through a scanning imaging device 2; then, the core body 10 of the heat exchanger to be cleaned is driven to automatically transmit through the rotary driving device 6, so that the plane where the same layer of heat exchange tubes 10-1 in the core body of the heat exchanger to be cleaned is parallel to the horizontal plane; then, the horizontal driving device is driven to move up and down through the lifting driving device, so that the axis of the heat exchange tube 10-1 to be cleaned and the axis of the spray rod 8 are in the same horizontal plane; then, the horizontal driving device drives the axial driving device to move left and right, so that the heat exchange tube 10-1 to be cleaned is coaxial with the spray rod 8; finally, the spray rod 8 is driven by the axial driving device to move back and forth along the axial direction of the spray rod sleeve 7, so that the heat exchange pipe 10-1 can be cleaned quickly, accurately and efficiently, the requirement on the operation level of workers can be reduced, the safety is improved, the labor intensity of the workers can be obviously reduced, and the cleaning efficiency is improved.
Preferably, as shown in fig. 4, the lifting driving device includes two lifting driving units respectively disposed at two sides of the horizontal driving device, each lifting driving unit includes a cross beam 3-3, a lifting slide bar 3-1, a lifting slide block 3-2 and a lifting motor, one end of the lifting slide bar 3-1 is connected with the bottom of the base frame 1, the other end thereof penetrates through the lifting slide block 3-2 and is connected with the top of the base frame 1, one side of the cross beam 3-3 is connected with the lifting slide block 3-2, the other side thereof is connected with the horizontal driving device, and the lifting motor is respectively connected with the lifting slide block 3-2 and the control device 9. Therefore, when the height of a heat exchange tube 10-1 to be cleaned in a core 10 of the heat exchanger to be cleaned is higher than that of the spray rod 8, the lifting motor drives the lifting slide block 3-2 to move upwards along the lifting slide rod 3-1, meanwhile, the cross beam 3-3 connected with the lifting slide block 3-2 moves upwards along with the lifting slide block, and then the horizontal driving device is driven by the cross beam 3-3 to move upwards until the spray rod 8 and the heat exchange tube 10-1 to be cleaned are located at the same height; when the height of a heat exchange tube 10-1 to be cleaned in a core 10 of the heat exchanger to be cleaned is lower than that of a spray rod 8, a lifting motor drives a lifting slide block 3-2 to move downwards along a lifting slide rod 3-1, meanwhile, a cross beam 3-3 connected with the lifting slide block 3-2 moves downwards along with the lifting slide block, and then a horizontal driving device is driven by the cross beam 3-3 to move downwards until the spray rod 8 and the heat exchange tube 10-1 to be cleaned are located at the same height.
Furthermore, the horizontal driving device comprises a horizontal sliding rod 4-1, a horizontal sliding block 4-2 and a horizontal motor, one end of the horizontal sliding rod 4-1 is connected with one of the cross beams 3-3, the other end of the horizontal sliding rod penetrates through the horizontal sliding block 4-2 and then is connected with the other cross beam 3-3, the horizontal sliding block 4-2 is connected with the axial driving device, and the horizontal motor is respectively connected with the horizontal sliding block 4-2 and the control device 9. Therefore, when the spray rod 8 is positioned at the left side of the heat exchange tube 10-1 to be cleaned, the horizontal motor drives the horizontal sliding block 4-2 to move rightwards along the horizontal sliding rod 4-1, and then the axial driving device connected with the horizontal sliding block 4-2 moves rightwards along with the horizontal sliding block until the spray rod 8 and the heat exchange tube 10-1 to be cleaned are coaxial; when the spray rod 8 is positioned at the right side of the heat exchange tube 10-1 to be cleaned, the horizontal motor drives the horizontal sliding block 4-2 to move leftwards along the horizontal sliding rod 4-1, and then the axial driving device connected with the horizontal sliding block 4-2 moves leftwards along with the horizontal sliding block until the spray rod 8 and the heat exchange tube 10-1 to be cleaned are coaxial.
Preferably, the rotation driving device 6 comprises a roller shaft seat, a rotating motor and two roller shafts, the two roller shafts are respectively arranged at two sides of the top of the roller shaft seat, and the rotating motor is respectively connected with the roller shafts and the control device 9. Therefore, when an included angle is formed between the plane where the same layer of heat exchange tubes 10-1 in the core 10 of the heat exchanger to be cleaned is located and the horizontal plane, the rotating motor drives the two roll shafts to rotate in the same direction until the plane where the same layer of heat exchange tubes 10-1 in the core 10 of the heat exchanger to be cleaned is located is parallel to the horizontal plane.
In addition, the system also comprises a water pump and a coiler 11 coiled with a hose, wherein one end of the hose is connected with the water pump, the other end of the hose is connected with the spray rod 8, and the water pump is connected with the control device 9. When the axial driving device drives the spray rod 8 to move forwards along the heat exchange pipe 10-1 to be cleaned, the control device 9 controls the water pump to be started, and meanwhile, the hose coiling device 11 tensions the hose in real time according to the moving distance of the spray rod 8.
With reference to fig. 5 and 6, the axial driving device includes a slider seat 5-6, a first driving wheel 5-3, a first driven wheel, a second driving wheel, a second driven wheel, a driving shaft 5-12, a driven shaft, a servo motor 5-13, and a first chain and a second chain which are oppositely arranged; the first driving wheel 5-3 is in transmission connection with the first driven wheel through a first chain 5-1, and the second driving wheel is in transmission connection with the second driven wheel through a second chain 5-2; one end of the driving shaft 5-12 passes through the first end of the first guide rail 5-4 to be connected with the first driving wheel 5-3, the other end passes through the first end of the second guide rail 5-5 to be connected with the second driving wheel, one end of the driven shaft passes through the second end of the first guide rail 5-4 to be connected with the first driven wheel, and the other end passes through the second end of the second guide rail 5-5 to be connected with the second driven wheel; the servo motors 5-13 are respectively connected with the driving shafts 5-12 and the control device 9, and the bottom surfaces of the first guide rail 5-4 and the second guide rail 5-5 are both connected with the horizontal driving device; the two ends of the slider seat 5-6 are respectively connected with the first chain 5-1 and the second chain 5-2, the two sides of the bottom of the slider seat 5-6 are respectively provided with a slider 5-7 which is in sliding connection with the first guide rail 5-4 and the second guide rail 5-5, the spray rod sleeve 7 is arranged on the slider seat 5-6, the two sides of the spray rod sleeve 7 are respectively provided with a slit which is parallel to the axial direction of the spray rod sleeve 7, the spray rod 8 is provided with connecting plates 5-8 which are in one-to-one correspondence with the slits, and the connecting plates 5-8 penetrate through the corresponding slits to be connected with the slider seat 5-6. Therefore, when the heat exchange tube 10-1 to be cleaned is cleaned, the control device 9 controls the servo motor 5-13 to be started, the first driving wheel 5-3 and the second driving wheel rotate along with the first driving wheel, and further the first chain 5-1 and the second chain 5-2 are driven to rotate clockwise, and the slider seat 5-6 moves forwards along with the slider seat 5-6 because the two ends of the slider seat 5-6 are respectively connected with the first chain 5-1 and the second chain 5-2. And when the slider seat 5-6 moves forwards, the spray rod 8 is driven by the connecting plate 5-8 to move forwards along the axial direction of the spray rod sleeve 7, so that the spray rod 8 can be inserted into the heat exchange pipe 10-1 to be cleaned for cleaning. When the cleaning work is finished, the servo motor 5-13 drives the first driving wheel 5-3 and the second driving wheel to rotate in opposite directions so as to drive the first chain 5-1 and the second chain 5-2 to rotate anticlockwise, and then the sliding block seat 5-6 moves backwards along with the first chain and the second chain. And when the slider seat 5-6 moves backwards, the spray rod 8 is driven by the connecting plate 5-8 to move backwards along the axial direction of the spray rod sleeve 7, so that the spray rod 8 is withdrawn from the heat exchange tube 10-1.
Preferably, the servo motor 5-13 is connected to the drive shaft 5-12 through a speed reducer 5-14. The scanning imaging device 2 is connected with the first guide rail 5-4 or the second guide rail 5-5 through a connecting rod.
Further, in order to facilitate installation and later maintenance, two ends of the slider seat 5-6 are respectively connected with the first chain 5-1 and the second chain 5-2 through connecting buckles 5-9, inserting rods are arranged on the inner sides of the first chain 5-1 and the second chain 5-2, first through holes for inserting the inserting rods are formed in the connecting buckles 5-9, grooves corresponding to the first through holes in a one-to-one mode are formed in the slider seat 5-6, namely the inserting rods, the first through holes and the grooves are the same in number, and the inserting rods are coaxial with the corresponding first through holes and the corresponding grooves. During installation, the top ends of the inserting rods are inserted into the corresponding grooves after penetrating through the corresponding first through holes, and the synchronous movement of the sliding block seats 5-6 and the first chain 5-1 and the second chain 5-2 can be ensured.
Preferably, the slider seat 5-6 is provided with a plurality of seating grooves for seating the spray bar sleeves 7, which are sequentially provided in the width direction of the slider seat 5-6, that is, the slider seat 5-6 is provided with a plurality of spray bars 8, so that the cleaning efficiency is further improved by simultaneously cleaning the heat exchange tubes 10-1 through the plurality of spray bars 8. More preferably, the number of the placing grooves is 2-9.
Further, the coil pipe 11 is in communication with the water pump through a high pressure water distributor 13.
Preferably, the device also comprises an electromagnetic lock 5-10 connected with the control device 9 and a connecting seat 5-11 arranged between the connecting plate 5-8 and the slider seat 5-6, wherein the electromagnetic lock 5-10 and the connecting seat 5-11 are respectively connected with the top of the connecting plate 5-8 and the top of the slider seat 5-6, namely the electromagnetic lock 5-10 is connected with the top of the connecting plate 5-8, the connecting seat 5-11 is connected with the top of the slider seat 5-6, a second through hole for inserting a lock head of the electromagnetic lock 5-10 is arranged on the connecting plate 5-8, and limiting grooves corresponding to the second through hole one to one are arranged on the connecting seat 5-11, namely the number of the lock heads, the second through holes and the limiting grooves is the same, and the lock heads are coaxial with the corresponding second through holes and limiting grooves. When one spray rod 8 needs to be cleaned, the control device 9 controls the electromagnetic locks 5-10 connected with the connecting plates 5-8 of the spray rod 8 to be powered off, the lock heads of the electromagnetic locks 5-10 are outwards popped out, the lock heads of the electromagnetic locks 5-10 are just inserted into the limiting grooves through the corresponding second through holes after being popped out, namely, the connecting plates 5-8 of the spray rod 8 are connected with the connecting seats 5-11 through the electromagnetic locks 5-10 on the connecting plates, and the spray rod 8 can move along with the connecting seats when the slider seats 5-6 move. When the spray rod 8 is not needed for cleaning, the control device 9 controls the electromagnetic locks 5-10 on the two sides of the spray rod 8 to be electrified, the lock heads of the electromagnetic locks 5-10 rebound, and the connecting plate 5-8 is separated from the connecting seats 5-11, so that the spray rod 8 is kept still when the slider seats 5-6 move.
Preferably, the top of the chassis 1 is provided with a camera 12 to facilitate the monitoring of the entire cleaning process by the operator in the operator's room.
Example 2
The invention also provides a use method of the system for automatically cleaning the heat exchange tube, which comprises the following steps:
s1, starting the scanning imaging device 2 to acquire a three-dimensional image of the core 10 of the heat exchanger to be cleaned, and jumping to execute the step S2;
s2, judging whether an included angle exists between a plane where the same layer of heat exchange tubes 10-1 in the core 10 of the heat exchanger to be cleaned is located and a horizontal plane, if so, skipping to execute a step S3, otherwise, executing a step S4;
s3, starting the rotary driving device 6 to drive the core body 10 of the heat exchanger to be cleaned to rotate by a specified angle, and jumping to execute the step S4;
s4, judging whether the height of the heat exchange tube 10-1 to be cleaned in the core 10 of the heat exchanger to be cleaned is different from that of the spray rod 8, if so, executing a step S5, otherwise, executing a step S6;
s5, starting the lifting driving device to drive the horizontal driving device to move upwards or downwards for a designated height, and jumping to execute the step S6;
s6, judging whether the heat exchange tube 10-1 to be cleaned and the spray rod 8 are coaxial, if so, executing a step S7, otherwise, executing a step S10;
s7, starting an axial driving device to drive the spray rod 8 to move forwards for a first designated distance along the axial direction of the spray rod sleeve 7, and jumping to execute the step S8;
s8, starting an axial driving device to drive the spray rod 8 to move backwards for a second designated distance along the axial direction of the spray rod sleeve 7, and jumping to execute the step S9;
s9, judging whether the height of the next heat exchange tube 10-1 to be cleaned in the core 10 of the heat exchanger to be cleaned is different from the height of the spray rod 8, if so, executing a step S5, otherwise, executing a step S6;
s10, the horizontal driving means is activated to drive the axial driving means to move a designated horizontal distance in the axial direction perpendicular to the spray bar cover 7, and the execution of step S7 is skipped.
Finally, it should be noted that: the above examples are only intended to illustrate the technical solution of the invention, but not to limit it; although the invention has been described in detail with reference to the foregoing embodiments, it will be understood by those skilled in the art that: the technical solutions described in the foregoing embodiments may still be modified, or some technical features may be equivalently replaced; and the modifications or the substitutions do not make the essence of the corresponding technical solutions depart from the spirit and scope of the technical solutions of the embodiments of the present invention.
Claims (9)
1. A system for automatically cleaning a heat exchange tube is characterized by comprising an underframe, a control device, a scanning imaging device, a lifting driving device, a horizontal driving device, a rotary driving device, an axial driving device, a spray rod sleeve arranged on the axial driving device and a spray rod inserted in the spray rod sleeve;
the scanning imaging device is connected with one end, facing the core body of the heat exchanger to be cleaned, of the axial driving device, and is used for scanning the core body of the heat exchanger to be cleaned so as to obtain a three-dimensional image of the core body of the heat exchanger to be cleaned;
the lifting driving device is connected with the bottom frame and is used for driving the horizontal driving device to move up and down;
the horizontal driving device is connected with the axial driving device and is used for driving the axial driving device to move along the axial direction vertical to the spray rod sleeve;
the axial driving device is used for driving the spray rod to move along the axial direction of the spray rod sleeve; the axial driving device comprises a sliding block seat, a first driving wheel, a first driven wheel, a second driving wheel, a second driven wheel, a driving shaft, a driven shaft, a servo motor, and a first chain and a second chain which are arranged oppositely; the first driving wheel is in transmission connection with the first driven wheel through the first chain, and the second driving wheel is in transmission connection with the second driven wheel through the second chain; one end of the driving shaft penetrates through the first end of the first guide rail to be connected with the first driving wheel, the other end of the driving shaft penetrates through the first end of the second guide rail to be connected with the second driving wheel, one end of the driven shaft penetrates through the second end of the first guide rail to be connected with the first driven wheel, and the other end of the driven shaft penetrates through the second end of the second guide rail to be connected with the second driven wheel; the servo motor is respectively connected with the driving shaft and the control device, and the bottom surfaces of the first guide rail and the second guide rail are both connected with the horizontal driving device; the two ends of the sliding block seat are respectively connected with the first chain and the second chain, sliding blocks which are in sliding connection with the first guide rail and the second guide rail are respectively arranged on the two sides of the bottom of the sliding block seat, the spray rod sleeve is arranged on the sliding block seat, slits which are parallel to the axial direction of the spray rod sleeve are respectively arranged on the two sides of the spray rod sleeve, connecting plates which are in one-to-one correspondence with the slits are arranged on the spray rod, and the connecting plates penetrate through the corresponding slits and are connected with the sliding block seat;
the rotation driving device is used for driving the core body of the heat exchanger to be cleaned to rotate;
the control device is respectively electrically connected with the scanning imaging device, the lifting driving device, the horizontal driving device, the axial driving device and the rotary driving device.
2. The system for automatically cleaning the heat exchange pipe according to claim 1, wherein the lifting driving device comprises two lifting driving units respectively arranged at two sides of the horizontal driving device, each lifting driving unit comprises a cross beam, a lifting slide rod, a lifting slide block and a lifting motor, one end of the lifting slide rod is connected with the bottom of the bottom frame, the other end of the lifting slide rod penetrates through the lifting slide block and then is connected with the top of the bottom frame, one side of the cross beam is connected with the lifting slide block, the other side of the cross beam is connected with the horizontal driving device, and the lifting motor is respectively connected with the lifting slide block and the control device.
3. The system for automatically cleaning the heat exchange tube according to claim 2, wherein the horizontal driving device comprises horizontal sliding rods, horizontal sliding blocks and horizontal motors, one end of each horizontal sliding rod is connected with one of the cross beams, the other end of each horizontal sliding rod penetrates through the corresponding horizontal sliding block and then is connected with the other cross beam, the horizontal sliding blocks are connected with the axial driving device, and the horizontal motors are respectively connected with the horizontal sliding blocks and the control device.
4. The system for automatically cleaning the heat exchange pipe as claimed in claim 1, wherein the rotation driving device comprises a roller shaft seat, a rotation motor and two roller shafts, the two roller shafts are respectively arranged at two sides of the top of the roller shaft seat, and the rotation motor is respectively connected with the roller shafts and the control device.
5. The system for automatically cleaning the heat exchange pipe as claimed in claim 1, further comprising a water pump and a coiler wound with a hose, wherein one end of the hose is connected with the water pump, the other end of the hose is connected with the spray rod, and the water pump is connected with the control device.
6. The system for automatically cleaning a heat exchange tube according to claim 1, wherein two ends of the sliding block seat are respectively connected with the first chain and the second chain through connecting buckles, the inner sides of the first chain and the second chain are respectively provided with an insertion rod, the connecting buckles are provided with first through holes for inserting the insertion rods, and the sliding block seat is provided with grooves corresponding to the first through holes one to one.
7. The system for automatically cleaning the heat exchange pipe according to claim 1, wherein the slider seat is provided with a plurality of seating grooves for seating the spray bar sleeve, and the plurality of seating grooves are sequentially provided in a width direction of the slider seat.
8. The system for automatically cleaning the heat exchange tube according to claim 7, further comprising an electromagnetic lock connected with the control device and a connecting seat arranged between the connecting plate and the slider seat, wherein the electromagnetic lock and the connecting seat are respectively connected with the top of the connecting plate and the top of the slider seat, the connecting plate is provided with a second through hole for inserting a lock head of the electromagnetic lock, and the connecting seat is provided with a limiting groove corresponding to the second through hole in a one-to-one manner.
9. The use method of the system for automatically cleaning the heat exchange pipe based on claim 1 is characterized by comprising the following steps:
s1, starting the scanning imaging device to acquire a three-dimensional image of the core body of the heat exchanger to be cleaned, and jumping to execute the step S2;
s2, judging whether an included angle exists between a plane where the same layer of heat exchange tubes in the core body of the heat exchanger to be cleaned is located and a horizontal plane, if so, skipping to execute the step S3, and if not, executing the step S4;
s3, starting a rotary driving device to drive the core body of the heat exchanger to be cleaned to rotate by a specified angle, and jumping to execute the step S4;
s4, judging whether the height of the heat exchange tube to be cleaned in the core of the heat exchanger to be cleaned is different from that of the spray rod or not, if so, executing a step S5, otherwise, executing a step S6;
s5, starting the lifting driving device to drive the horizontal driving device to move upwards or downwards for a designated height, and jumping to execute the step S6;
s6, judging whether the heat exchange tube to be cleaned and the spray rod are coaxial, if so, executing a step S7, otherwise, executing a step S10;
s7, starting an axial driving device to drive the spray rod to move forwards for a first designated distance along the axial direction of the spray rod sleeve, and jumping to execute the step S8;
s8, starting an axial driving device to drive the spray rod to move backwards for a second designated distance along the axial direction of the spray rod sleeve, and jumping to execute the step S9;
s9, judging whether the height of the next heat exchange tube to be cleaned in the core of the heat exchanger to be cleaned is different from the height of the spray rod, if so, executing a step S5, otherwise, executing a step S6;
s10, starting the horizontal driving device to drive the axial driving device to move a designated horizontal distance along the axial direction perpendicular to the spray rod sleeve, and jumping to execute the step S7.
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| CN201711250377.2A CN109870067B (en) | 2017-12-01 | 2017-12-01 | System for automatically cleaning heat exchange tube and using method thereof |
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| CN201711250377.2A CN109870067B (en) | 2017-12-01 | 2017-12-01 | System for automatically cleaning heat exchange tube and using method thereof |
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| CN109870067B true CN109870067B (en) | 2020-07-07 |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN111707135B (en) * | 2020-05-21 | 2021-10-15 | 中筑科技股份有限公司 | Central air conditioning fan coil circulation cleaning equipment |
| CN114608379B (en) * | 2022-02-14 | 2024-06-04 | 浙江恒诚化工设备检修安装有限公司 | Maintenance equipment for heat exchange equipment of chemical plant |
| CN118080481A (en) * | 2024-04-17 | 2024-05-28 | 南通三圣石墨设备科技股份有限公司 | Graphite heat exchanger cleaning machine and control method thereof |
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