CN114608380A

CN114608380A - Cleaning method for heat exchanger tube bundle

Info

Publication number: CN114608380A
Application number: CN202210198840.8A
Authority: CN
Inventors: 胡开艳
Original assignee: Individual
Current assignee: Individual
Priority date: 2022-03-01
Filing date: 2022-03-01
Publication date: 2022-06-10

Abstract

The invention discloses a cleaning method of a heat exchanger tube bundle, belonging to the field of cleaning of heat exchangers, on the basis of high-pressure jet cleaning, when the inflatable capsules on the flexible cleaning strip are in a state of sinking and extruding in the middle part by the arrangement of the flexible cleaning strip, the air inflation capsule is in a full state by inflating, so that the inner wall of the heat exchange pipe can be in all-round contact friction, thereby effectively avoiding the residue of dirt, when the inflatable capsule is released from the extrusion state and is inflated again, the middle part of the inflatable capsule bulges outwards so as to be in extrusion contact with the tube wall, dirt and impurities can be effectively adhered under friction, so that the light in the middle of the ballooning capsule is weakened, the cleaning condition of the inner wall of the heat exchange tube is judged according to the brightness change in the middle, compared with the prior art, the cleaning device greatly reduces the probability of incomplete cleaning and improves the cleaning effect.

Description

Cleaning method for heat exchanger tube bundle

Technical Field

The invention relates to the field of cleaning of heat exchangers, in particular to a cleaning method for a heat exchanger tube bundle.

Background

When cleaning the heat exchange tube on the heat exchanger tube bundle in the prior art, firstly, the seal heads and the seal tails of the heat exchanger are removed to expose all the tubes, then a rigid spray gun or a flexible high-pressure spray gun is inserted into the tube hole for a distance of 200 mm and 300mm, a spray gun control valve is opened to pressurize high-pressure water until the pressure reaches a rated pressure, and then the spray gun is gradually pushed towards the deep part of the pipeline in the cleaning process until high-pressure water jet is sprayed out from the other end of the heat exchanger. Then, the operator slowly withdraws the lance in the working state, and the dirt continues to be crushed until the lance is withdrawn to the nozzle during feeding, and the dirt is discharged out of the pipeline. And then, cleaning the tubes one by adopting the same method until the tube pass of the whole heat exchanger is cleaned.

However, the nozzle of the high-pressure spray gun is generally parallel to the inner wall of the heat exchange tube or forms a certain included angle instead of direct impact, so that the above manner is generally effective in cutting and breaking dirt, and after direct spray cleaning, fine impurities often remain on the tube wall, however, because the heat exchange tubes are relatively gathered and the general tubes are non-ferrous metals, workers are difficult to find the residual dirt and impurities inside, and the cleaning is not thorough.

Disclosure of Invention

1. Technical problem to be solved

Aiming at the problems in the prior art, the invention aims to provide a heat exchanger tube bundle cleaning method, on the basis of high-pressure jet cleaning, through the arrangement of a flexible cleaning strip, when an inflatable capsule on the flexible cleaning strip is in a state that the middle part is sunken and squeezed, the inflatable capsule is inflated to be in a full state, so that the inner wall of a heat exchange tube can be subjected to omnibearing contact friction, and further, the residue of dirt is effectively avoided.

2. Technical scheme

In order to solve the above problems, the present invention adopts the following technical solutions.

A cleaning method for a heat exchanger tube bundle comprises the following steps:

s1, firstly, taking down end sockets and end seals at two ends of a tube shell of the heat exchanger to expose two ends of the tube bundle, then carrying out high-pressure water washing along the opening part of the tube bundle to remove floating scales, and simultaneously loosening and shearing large scales;

s2, placing the inner traction hemisphere of the main cleaning bundle into one end opening of a heat exchange tube in the tube bundle, then attracting the inner traction hemisphere through the tube bundle by an external magnetic field to enable the inner traction hemisphere to penetrate through the tube bundle and reach the other end opening of the heat exchange tube, and at the moment, connecting the outer guide hemisphere of the auxiliary cleaning bundle with the end part of the inner traction hemisphere in a threaded manner;

s3, moving the multiple inflatable capsules to a position close to the inner traction hemisphere or the outer guide hemisphere along the tail parts of the inner traction hemisphere and the outer guide hemisphere, manually extruding and moving to adjust the positions of the multiple inflatable capsules, enabling the multiple inflatable capsules to be extruded and bulged mutually, fixing the positions of the edge inflatable capsules, and forming multiple flexible cleaning strips corresponding to the heat exchange tubes respectively;

s4, immersing the tube bundle in a cleaning pool, filling inert gas inwards along the tail parts of the inner traction hemisphere and the outer guide hemisphere of the traction hemisphere to enable the flexible cleaning strip to be in a full hard state, and pulling the flexible cleaning strip back and forth through a traction mechanism to clean the heat exchange tube;

and S5, after cleaning, introducing high-pressure water into the tube bundle again for washing, repeating the steps S4-S5 until the water flowing out after washing is clear, judging the cleaning condition of the inner wall of the heat exchange tube through the brightness change of the middle part of the flexible cleaning strip, and finishing cleaning after the change meets the requirement.

Further, the method for judging the cleaning condition of the inner wall of the heat exchange tube by the flexible cleaning strip in the step S5 includes:

s51, after the water flowing out after being washed in the step S5 is clear, the filled inert gas is released outwards, then the positions of the inflatable capsules are adjusted, so that two adjacent inflatable capsules are mutually contacted, and meanwhile, the middle parts of the inflatable capsules are in a natural concave state;

s52, filling inert gas along the tails of the inner traction hemisphere and the outer guide hemisphere again to make the middle part of the inflatable capsule bulge outwards, and controlling the flexible cleaning strip to reciprocate in the heat exchange tube through the traction mechanism to make the middle part of the inflatable capsule in uniform friction contact with the inner wall of the heat exchange tube;

and S53, when residual dirt is adhered to the inner wall, the transparency is obviously lowered, so that the brightness is lowered, and the effect of effectively judging whether the residual dirt exists on the inner wall of the heat exchange tube according to the brightness is realized.

Further, in the step S3, in the process of extruding and moving the inflatable capsule, the two ends of the inflatable capsule are bulged outwards and approach to each other until the edges of the middle portion of the inflatable capsule are in mutual extrusion contact, so as to complete the adjustment of the position of the inflatable capsule.

Furthermore, the main cleaning bundle comprises a positioning plate, a plurality of air guide double-tail ropes fixedly connected to the positioning plate and a plurality of inner traction hemispheres connected to the end portions of the air guide double-tail ropes, the inner traction hemispheres on the main cleaning bundle are replaced by outer guide hemispheres to form auxiliary cleaning bundles, and the plurality of inner traction hemispheres and the air guide double-tail ropes are respectively matched with the plurality of heat exchange tubes on the tube bundle.

Furthermore, the air guide double-tail rope comprises an inner air guide layer positioned on the inner layer and an outer air avoiding layer fixedly connected with the inner air guide layer and far away from the outer end of the inner traction hemisphere, and the inner air guide layer is positioned in the outer air avoiding layer.

Furthermore, the end part of the outer air-avoiding layer, which is close to the inner traction hemisphere, is fixedly connected with an inner fixed ring, a limiting pipe is fixedly embedded on the inner air-guiding layer, limiting holes are drilled on the inner fixed ring and the limiting pipe, and the two limiting holes are matched with each other.

Furthermore, the inner air guide layer and the outer air avoiding layer are both flexible structures, the outer air avoiding layer is made of sealing materials, and the inner air guide layer is of a porous structure.

Further, the ballooning capsule includes two wiping piece sacs that are symmetrical each other, two respectively fixed connection keep away from the limit ring of one end each other at wiping piece sack and fixed connection in the ring that contracts in at wiping piece sack middle part, the transparent fluorescence ball of a plurality of evenly distributed of fixedly connected with on the ring that contracts in, and draw hemisphere and outer same fixedly connected with limit ring of leading the hemisphere outer end in, the limit ring is located the air guide two tail rope outsides, the outside limit ring inner wall is provided with the screw thread, and the screw thread matches each other with interior fixed ring surface.

Further, the inflatable capsule is an elastic structure with a middle contracted concave shape, the inner contracted ring is positioned at the concave position, one of the two side rings is of a magnetic structure, the other side ring is of an iron structure, and the wiping piece capsules on the inner traction hemisphere and the outer guide hemisphere are of iron structures.

Furthermore, the inner wall of the side ring at the outermost side is provided with threads, and the threads are matched with the outer surface of the inner fixed ring.

Furthermore, the retracted ring is of a folded elastic structure, the transparent fluorescent ball is located at the concave position of two adjacent folds, and the inner diameter of the folded retracted ring is larger than the maximum diameter of the wiping bag after the folded retracted ring is completely unfolded.

3. Advantageous effects

Compared with the prior art, the invention has the advantages that:

(1) this scheme is on high-pressure jet abluent basis, through the setting of flexible washing strip, when the physiosis capsule on the flexible washing strip is in the middle part extrusion state that caves in, make the physiosis capsule present full state through aerifing, thereby can realize carrying out omnidirectional contact friction to the heat transfer pipe inner wall, and then effectively avoid remaining of dirt, when the physiosis capsule removes the extrusion state and aerifys once more, the physiosis capsule middle part is outside protruding, thereby with pipe wall extrusion contact, can effectively adhere dirt impurity under the friction, make physiosis capsule middle part light weakening, thereby realize the luminance change according to the middle part, judge the washing condition of heat transfer pipe inner wall, compare in prior art, reduce the not thorough probability of washing by a wide margin, improve the cleaning performance.

Drawings

FIG. 1 is a schematic view of a part of the flow structure of the present invention;

FIG. 2 is a schematic perspective view of a heat exchanger according to the present invention;

FIG. 3 is a schematic perspective view of the heat exchanger with the head and tail removed according to the present invention;

FIG. 4 is a schematic view of the inner hemispherical tractor and the outer hemispherical tractor in connection according to the present invention;

FIG. 5 is a schematic view of the main cleaning beam of the present invention;

FIG. 6 is a schematic structural view of the air guide double tail rope of the present invention;

FIG. 7 is a schematic view showing the structure of the process of the present invention when the middle portions of the inflatable bladder are pressed against each other;

FIG. 8 is a schematic view of the inflatable bladder of the present invention in a normal configuration;

FIG. 9 is a schematic structural view of a cross section of a central depression of an inflatable bladder of the present invention;

fig. 10 is a structural diagram illustrating a process of the present invention after inflating a normal inflatable capsule.

The reference numbers in the figures illustrate:

the device comprises a positioning plate 1, a gas guide double-tail rope 2, an outer gas avoiding layer 21, an inner gas guide layer 22, a limiting pipe 221, an inner traction hemisphere 31, an outer guide hemisphere 32, an inflatable capsule 4, a wiping piece capsule 41, a side ring 42, an inner contraction ring 43, a transparent fluorescent ball 5, an inner fixed ring 6 and a limiting hole 7.

Detailed Description

The drawings in the embodiments of the invention will be combined; the technical scheme in the embodiment of the invention is clearly and completely described; obviously; the described embodiments are only some of the embodiments of the invention; but not all embodiments, are based on the embodiments of the invention; all other embodiments obtained by a person skilled in the art without making any inventive step; all fall within the scope of protection of the present invention.

In the description of the present invention, it should be noted that the terms "upper", "lower", "inner", "outer", "top/bottom", and the like indicate orientations or positional relationships based on those shown in the drawings, and are only for convenience of description and simplification of 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. Furthermore, the terms "first" and "second" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance.

In the description of the present invention, it should be noted that, unless otherwise explicitly specified or limited, the terms "mounted," "disposed," "sleeved/connected," "connected," and the like are to be construed broadly, e.g., "connected," which may be fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meanings of the above terms in the present invention can be understood in a specific case to those of ordinary skill in the art.

Example 1:

referring to fig. 2-3, wherein a represents a tube shell, b represents a seal head or a seal tail, and c represents a heat exchange tube, the cleaning method of the heat exchanger tube bundle comprises the following steps:

s1, firstly, taking down the end sockets and the end seals at the two ends of the tube shell of the heat exchanger to expose the two ends of the tube bundle, and then washing the tube bundle with high pressure water along the opening part of the tube bundle to remove floating scales and loosen and shear large scales;

s2, referring to the figure 4, the inner traction hemisphere 31 of the main cleaning bundle is placed in one end opening of the heat exchange tube in the tube bundle, then the inner traction hemisphere 31 is attracted by an external magnetic field to penetrate through the tube bundle and reach the other end opening of the heat exchange tube, and at the moment, the outer guide hemisphere 32 of the auxiliary cleaning bundle is connected with the end part of the inner traction hemisphere 31 in a threaded manner;

s3, please refer to fig. 1, the plurality of ballooning capsules 4 are moved to a position close to the inner traction hemisphere 31 or the outer guide hemisphere 32 along the tails of the inner traction hemisphere 31 and the outer guide hemisphere 32, and the positions of the plurality of ballooning capsules 4 are adjusted by manual squeezing movement, so that the plurality of ballooning capsules 4 are squeezed and bulged mutually, and the positions of the edge ballooning capsules 4 are fixed, thereby forming a plurality of flexible cleaning strips corresponding to the heat exchange tubes respectively;

s4, immersing the tube bundle in a cleaning pool, filling inert gas inwards along the tail parts of the inner traction hemisphere 31 and the outer guide hemisphere 32 of the traction hemisphere to enable the flexible cleaning strip to be in a full hard state, and pulling the flexible cleaning strip back and forth through a traction mechanism to clean the heat exchange tube;

s5, after cleaning, introducing high-pressure water into the tube bundle again for washing, repeating the steps S4-S5 until the water flowing out after washing is clear, then judging the cleaning condition of the inner wall of the heat exchange tube through the brightness change of the middle part of the flexible cleaning strip, and finishing cleaning after the change meets the requirement;

as shown in fig. 10, the method for determining the cleaning condition of the inner wall of the heat exchange tube by the flexible cleaning strip includes:

s51, after the water flowing out after being washed in the step S5 is clear, the filled inert gas is released outwards, then the positions of the inflatable capsules 4 are adjusted, so that two adjacent inflatable capsules 4 are mutually contacted, and meanwhile, the middle parts of the inflatable capsules 4 are in a natural concave state;

s52, filling inert gas along the tails of the inner traction hemisphere 31 and the outer guide hemisphere 32 again to make the middle part of the inflatable capsule 4 bulge outwards, and controlling the flexible cleaning strip to reciprocate in the heat exchange tube by the traction mechanism to make the middle part of the flexible cleaning strip in uniform friction contact with the inner wall of the heat exchange tube;

s53, when residual dirt adheres to the inner wall, the transparency is obviously lowered, the brightness is lowered, and therefore the effect that whether the residual dirt exists on the inner wall of the heat exchange pipe can be effectively judged according to the brightness is achieved.

As shown in fig. 7, in step S3, in the process of moving the ballooning capsules 4 by extrusion, the two ends of each ballooning capsule 4 are bulged outwards and approach each other until the middle edges of the ballooning capsules 4 are in mutual extrusion contact, that is, the end portions of the two wipe capsules 41 that approach each other contact each other, so as to adjust the positions of the ballooning capsules 4, thereby effectively protecting the transparent fluorescent balls 5 inside, making the transparent fluorescent balls not easily contact with dirt in the normal cleaning process, further making the brightness of the transparent fluorescent balls not easily affected, and making the subsequent reaction effect on the inner wall cleaning condition more accurate, and the transparent fluorescent balls 5 are made of transparent silica gel, so that the transparent fluorescent balls have elasticity, and can be deformed adaptively when contacting with the tube wall, so that the contact area with the closed part is larger, and the dirt cleaning condition can be better reflected.

Referring to fig. 5, the main cleaning bundle includes a positioning plate 1, a plurality of air guide double tail ropes 2 fixedly connected to the positioning plate 1, and a plurality of inner traction hemispheres 31 connected to the end portions of the air guide double tail ropes 2, the inner traction hemispheres 31 on the main cleaning bundle are replaced by outer guide hemispheres 32 to form an auxiliary cleaning bundle, and the plurality of inner traction hemispheres 31 and the air guide double tail ropes 2 are respectively matched with the plurality of heat exchange tubes on the tube bundle.

Referring to fig. 6, the air guide double tail rope 2 includes an inner air guide layer 22 located at an inner layer and an outer air avoiding layer 21 fixedly connected to the inner air guide layer 22 and far away from an outer end of an inner traction hemisphere 31, a plurality of air inflation capsules 4 are sleeved outside the outer air avoiding layer 21, the inner air guide layer 22 is located inside the outer air avoiding layer 21, an inner fixed ring 6 is fixedly connected to an end portion of the outer air avoiding layer 21 close to the inner traction hemisphere 31, a limit pipe 221 is fixedly embedded in the inner air guide layer 22, limit holes 7 are drilled in the inner fixed ring 6 and the limit pipe 221, the two limit holes 7 are matched with each other, after the positions of the plurality of air inflation capsules 4 are adjusted, the two limit holes 7 are corresponded with each other, a limit rod is inserted into the limit hole 7, two end portions of the limit rod do not protrude out of the inner fixed ring 6, then the side ring 42 is connected with the inner fixed ring 6 by screw threads, thereby realizing the effect of connecting the outer air avoiding layer 21 and the outermost air inflation capsules 4, and then make the porous surface of the two tail rope 2 of air guide totally lie in a plurality of inflatable capsules 4, make when aerifing, gas is difficult for excessive, can directly act on a plurality of inflatable capsules 4, the washing of the heat transfer pipe inner wall of being convenient for.

Interior air guide layer 22 and outer layer 21 of keeping away the gas are the flexible construction, and outer layer 21 of keeping away the gas is made for the sealing material, and interior air guide layer 22 is porous structure, makes the two tail rope 2 of air guide wholly present flexibility, and then makes the flexible washing strip flexibility of forming through main washing bundle, vice washing bundle and a plurality of physiosis capsules 4 higher relatively, makes drive mechanism guide its removal, in the friction cleaning process of pipe wall, is difficult for causing the condition of local damage to the pipe wall.

Referring to fig. 8, the inflatable bladder 4 includes two symmetrical wiping bags 41, two side rings 42 fixedly connected to the ends of the wiping bags 41 far away from each other, and an inner contracting ring 43 fixedly connected to the middle portions of the two wiping bags 41, the inner contracting ring 43 is fixedly connected with a plurality of transparent fluorescent balls 5 uniformly distributed, the outer ends of the inner traction hemisphere 31 and the outer guide hemisphere 32 are also fixedly connected with the side rings 42, the side rings 42 are located outside the air guide double tail rope 2, the inner wall of the side ring 42 at the outermost side is provided with threads, and the threads are matched with the outer surface of the inner setting ring 6, so that the inflatable bladders 4 decompressed mutually can be fixed on the air guide double tail rope 2, and further, the state of the plurality of inflatable bladders 4 is relatively stable during mutual extrusion, the dislocation is not easy to occur or the original state of the inflatable bladder 4 is not easy to recover, after the connection, because of the whole air guide of the inflatable bladder 4 and the flexibility of the double tail rope 2, the formed cleaning strip is wholly flexible, and the pipe wall is not easy to be damaged in the cleaning process.

In addition, in order to ensure that the plurality of inflatable capsules 4 can smoothly move on the air guide double-tail rope 2, the inner diameters of the plurality of side rings 42 which are not provided with threads are all larger than that of the inner fixed ring 6.

The physiosis capsule 4 is the elastic construction of middle part shrink sunken shape, and the ring 43 that contracts in is located the depressed part, in two limit rings 42, one is the magnetic structure, another is the iron structure, and the piece bag 41 of wiping on interior traction hemisphere 31 and the outer hemisphere 32 is the iron structure, make two adjacent physiosis capsules 4 and physiosis capsule 4 and interior traction hemisphere 31 or the one end that outer hemisphere 32 is close to each other can adsorb each other, thereby to the better location of physiosis capsule 4, a plurality of mutual extruded physiosis capsules 4 are more stable.

Referring to fig. 9, the inner shrink rings 43 are folded elastic structures, the transparent fluorescent ball 5 is located at the concave of two adjacent folds, and the inner diameter of the folded inner shrink rings 43 is larger than the maximum diameter of the wiper bag 41 after being completely unfolded, so that it is effectively ensured that the transparent fluorescent ball 5 can contact with the inner wall of the heat exchange tube after the inner shrink rings 43 expand outwards after the inflatable capsules 4 are inflated again when they are not pressed.

On the basis of high-pressure jet cleaning, through the setting of flexible cleaning strip, when the inflatable capsule 4 on the flexible cleaning strip is in the extrusion state that caves in the middle part, make inflatable capsule 4 present full state through aerifing, thereby can realize carrying out all-round contact friction to the heat transfer pipe inner wall, and then effectively avoid the remaining of dirt, when inflatable capsule 4 removes the extrusion state and inflates once more, inflatable capsule 4 middle part is outside protruding, thereby with pipe wall extrusion contact, can effectively adhere dirt impurity under the friction, make the light weakening in the middle part of inflatable capsule 4, thereby realize the luminance change according to the middle part, judge the washing condition of heat transfer pipe inner wall, compare in prior art, reduce the not thorough probability of washing by a wide margin, improve the cleaning performance.

As described above; but are merely preferred embodiments of the invention; the scope of the invention is not limited thereto; any person skilled in the art is within the technical scope of the present disclosure; the technical scheme and the improved concept of the invention are equally replaced or changed; are intended to be covered by the scope of the present invention.

Claims

1. A cleaning method for a heat exchanger tube bundle is characterized by comprising the following steps: the method comprises the following steps:

s2, placing the inner traction hemisphere (31) of the main cleaning bundle into one end opening of the heat exchange tube in the tube bundle, then attracting the inner traction hemisphere (31) through an external magnetic field to enable the inner traction hemisphere to penetrate through the tube bundle and reach the other end opening of the heat exchange tube, and at the moment, connecting the outer guide hemisphere (32) of the auxiliary cleaning bundle with the end part of the inner traction hemisphere (31) in a threaded manner;

s3, moving the multiple inflatable capsules (4) to a position close to the inner traction hemisphere (31) or the outer guide hemisphere (32) along the tail parts of the inner traction hemisphere (31) and the outer guide hemisphere (32), manually extruding, moving and adjusting the positions of the multiple inflatable capsules (4), enabling the multiple inflatable capsules (4) to be extruded and bulged mutually, fixing the positions of the edge inflatable capsules (4), and forming multiple flexible cleaning strips corresponding to the heat exchange tubes respectively;

s4, immersing the tube bundle in a cleaning pool, and filling inert gas inwards along the tail parts of the inner traction hemisphere (31) and the outer guide hemisphere (32) of the traction hemisphere to enable the flexible cleaning strip to be in a full hard state, and pulling the flexible cleaning strip back and forth through a traction mechanism to clean the heat exchange tube;

and S5, after cleaning, introducing high-pressure water into the tube bundle again for washing, repeating the steps S4-S5 until the water flowing out after washing is clear, judging the cleaning condition of the inner wall of the heat exchange tube through the brightness change of the middle part of the flexible cleaning strip, and finishing cleaning after the change meets the requirements.

2. The method for cleaning a heat exchanger tube bundle as recited in claim 1, wherein: the method for judging the cleaning condition of the inner wall of the heat exchange pipe through the flexible cleaning strip in the step S5 includes:

s51, after the water flowing out after flushing in the step S5 is clear, the filled inert gas is released outwards, then the positions of the inflatable capsules (4) are adjusted, so that two adjacent inflatable capsules (4) are mutually contacted, and meanwhile, the middle parts of the inflatable capsules (4) are in a naturally sunken state;

s52, filling inert gas along the tails of the inner traction hemisphere (31) and the outer guide hemisphere (32) again to make the middle part of the inflatable capsule (4) bulge outwards, and controlling the flexible cleaning strip to reciprocate in the heat exchange tube by the traction mechanism to make the middle part of the flexible cleaning strip in uniform friction contact with the inner wall of the heat exchange tube;

3. The method for cleaning a heat exchanger tube bundle as recited in claim 2, wherein: in the step S3, in the process of extruding and moving the inflatable capsule (4), the two ends of the inflatable capsule (4) are bulged outwards and approach to each other until the edges of the middle part of the inflatable capsule (4) are pressed and contacted with each other, and the adjustment of the position of the inflatable capsule (4) is completed.

4. The method for cleaning a heat exchanger tube bundle as recited in claim 1, wherein: the main cleaning beam comprises a positioning plate (1), a plurality of air guide double-tail ropes (2) fixedly connected to the positioning plate (1) and a plurality of inner traction hemispheres (31) connected to the end portions of the air guide double-tail ropes (2), the inner traction hemispheres (31) on the main cleaning beam are replaced by outer guide hemispheres (32) to form auxiliary cleaning beams, and the inner traction hemispheres (31) and the air guide double-tail ropes (2) are matched with a plurality of heat exchange tubes on the tube bundle respectively.

5. The method for cleaning a heat exchanger tube bundle as recited in claim 4, wherein: two tail rope of air guide (2) keep away from outer layer of keeping away from gas (21) of hemisphere (31) outer end including leading gas layer (22) and fixed connection in leading gas layer (22) that are located the inlayer, and just interior gas layer (22) is located and keeps away from gas layer (21) outward, and a plurality of physiosis capsules (4) cover are established and are kept away from outside gas layer (21).

6. The method for cleaning a heat exchanger tube bundle as recited in claim 5, wherein: the end part of the outer air avoiding layer (21) close to the inner traction hemisphere (31) is fixedly connected with an inner fixed ring (6), the inner air guiding layer (22) is fixedly embedded with a limiting pipe (221), limiting holes (7) are formed in the inner fixed ring (6) and the limiting pipe (221), and the two limiting holes (7) are matched with each other.

7. The method for cleaning a heat exchanger tube bundle as recited in claim 6, wherein: the inner air conduction layer (22) and the outer air avoiding layer (21) are both flexible structures, the outer air avoiding layer (21) is made of sealing materials, and the inner air conduction layer (22) is of a porous structure.

8. The method for cleaning a heat exchanger tube bundle as recited in claim 7, wherein: the inflatable capsule (4) comprises two mutually symmetrical wiping piece bags (41), two edge rings (42) fixedly connected to one ends of the wiping piece bags (41) far away from each other and two inner shrinkage rings (43) fixedly connected to the middle parts of the wiping piece bags (41), a plurality of uniformly distributed transparent fluorescent balls (5) are fixedly connected to the inner shrinkage rings (43), the edge rings (42) are fixedly connected to the outer ends of an inner traction hemisphere (31) and an outer guide hemisphere (32) in the same manner, the edge rings (42) are located on the outer sides of the air guide double tail ropes (2), the outermost sides of the inner walls of the edge rings (42) are provided with threads, and the threads are matched with the outer surface of the inner positioning ring (6) mutually.

9. The method of cleaning a heat exchanger tube bundle as recited in claim 8, wherein: the inflatable capsule (4) is an elastic structure with a middle contracted concave shape, the inner contracted ring (43) is positioned at a concave position, two of the side rings (42), one of the side rings is of a magnetic structure, the other side ring is of an iron structure, and the wiping capsules (41) on the inner traction hemisphere (31) and the outer guide hemisphere (32) are both of iron structures.

10. The method of cleaning a heat exchanger tube bundle as recited in claim 9 wherein: the transparent fluorescent ball (5) is of a folded elastic structure, the transparent fluorescent ball (5) is positioned at the concave position of two adjacent folds, and the inner diameter of an inner contracted ring (43) of each fold is larger than the maximum diameter of the wipe pocket (41) after the inner contracted ring is completely unfolded.