JPS60240997A - Automatic washing device - Google Patents

Abstract

PURPOSE:To wash efficiently and safely the interiors of fine tubes to which furs are attached by discharging a washing shell by a washing shell discharging device moving horizontally and intermittently while self-running vertically along a header plate. CONSTITUTION:In the washing device of a washing system in a heat exchanger provided with a lot of fine tubes (c), respective chucking devices 3 are provided on both end portions 1b of a guide rail 1 which are provided horizontally so that these chucking devices 3 are temporarily inserted into fine tubes (c) respectively to be held by themselves. A lifting and lowering device 11 provided with a cylinder device 14 is provided at the intermediate of the guide rail 1. A sliding member 17 is provided slidably on a support 15 of the lifting and lowering device 11, and respective chucking devices 18 are provided on both end portions of the sliding member 17 so that these chucking devices 18 are temporarily inserted into the fine tubes (c). A washing shell discharging device 26 is moved on the guide rail 1 while intermittently feeding. As a result, not only the washing operation for the fine tubes and the like can be preformed with excellent efficiency without assemblying any scaffold but also the operation of the washing device can be performed automatically, and hence any manual operation within the water chamber can be eliminated.

Description

DETAILED DESCRIPTION OF THE INVENTION [Technical Field of the Invention] The present invention relates to an automatic cleaning device for cleaning thin tubes in heat exchangers such as condensers used in thermal power plants and nuclear power plants.

[Technical background of the invention and its problems]

In general, water scales for turbines installed in thermal power plants and nuclear power plants are periodically cleaned of limescale adhering to the inside of the tubes in order to maintain heat exchange efficiency. To explain the water container with reference to FIG. 1, a pair of pipe plates (also referred to as pipe plates) b are provided at both ends of a body a equipped with a steam supply port a1 and a steam discharge port al. A large number of thin tubes C are arranged in parallel in the body a located between the pipe panels, and both side chambers form water chambers d and e in the body a located on the outside of both pipe panels. It is constructed by attaching casings f and g, and forming a water supply port f1 and a drain port g1 in a part of the casing f2g on both sides.

Therefore, in the above-mentioned condenser, the cooling water flows from the water supply port f through the water chamber d into each capillary tube, and further passes through another water chamber e and is discharged to the drain port g1. , on the other hand,
The steam that has completed its work is supplied from the supply port al to the body a, where the steam and cooling water exchange heat to generate condensate for the boiler, and then to the discharge port a! It is designed to be taken out from the

On the other hand, the cleaning device that has already been proposed for cleaning the inside of the thin tubes of a condenser has a cleaning device that cleans the inside of the thin tubes of the condenser, as shown in FIG. )h
are inserted by hand, and each of these cleaning tubes is sprayed with pressure water using the spray nozzle 11 of a portable water pressure gun (water pressure gun) 1, and the limescale in each thin tube C is peeled off with this pressure water and each cleaning tube. They are supposed to be washed.

On the other hand, in order to clean the thin tubes C in the condenser described above, each water chamber 1. Close the seawater intake valve (cooling water intake valve) leading to g, and then open the manhole j of the side chamber g, which has a diameter that allows an inspection worker to barely get in and out.
Scaffold materials were carried into the water pipe e, and the scaffold was assembled near the pipe board. Thereafter, 5 to 6 workers assembled each thin tube C as shown in Fig. 2. Insert the washing outer into the inside, and spray pressurized water with the injection nozzle II of the water pressure gun 1. Together with this pressure water, the washing outer penetrates the inside of each capillary C, thereby causing it to adhere to the inside of each capillary C. It is designed to remove limescale and clean it.

However, even if the manhole j of the side chamber casing g is open, the cleaning device described above requires multiple people to work inside the ice chamber e, which is in a nearly sealed state.
If a third party other than the above worker inadvertently opens the seawater intake valve, a large amount of high-pressure water will flow into the ice chamber θ within a short period of time, creating a safety problem for the worker. In addition, inside the water chamber e(3), a large amount of seaweed and shellfish adhere to the walls and are corroded, so the odor generated by them significantly deteriorates the working environment and poses a threat to occupational safety and health. In addition to the above problems, if the cleaning process is done manually, inserting a cleaning tube into approximately one small tube C and sequentially cleaning with the water pressure gun 1 causes severe worker fatigue, and the cleaning process becomes difficult. There are drawbacks such as reduced efficiency.

[Purpose of the invention]

In order to eliminate the above-mentioned drawbacks, the present invention provides a cleaning device for a condenser equipped with a large number of thin tubes, in which the cleaning device cleans the condenser intermittently in the horizontal direction while self-propelled in the vertical direction along the header plate of the condenser. To provide a cleaning device which is capable of efficiently and safely cleaning the inside of each capillary with limescale by ejecting a cleaning device using a cleaning device that moves.

[Summary of the invention]

The present invention provides a cleaning device for a heat exchanger equipped with a large number of thin tubes, in which each chucking device is provided at both ends of a horizontal guide rail so as to be temporarily inserted into the thin tubes and self-retained. An elevating device equipped with a cylinder device is installed in the guide rail (≠), a slide member is slidably provided on the support of the elevating device, and each chucking device is connected to the thin tube at both ends of the slide member. The external cleaning ejection device is temporarily inserted into the guide rail and moved intermittently on the guide rail.

[Embodiments of the invention]

Hereinafter, an illustrated embodiment in which the present invention is applied to a condenser will be explained.

Note that the present invention includes the same constituent members as those in the above-mentioned specific example.
The same reference numerals will be used for explanation.

In FIGS. 1 and 3, reference numerals denote a pair of header plates formed at both ends of the body a of the condenser, and the inside of the body a located between the two header plates. , a large number of thin tubes C for heat exchange are arranged in parallel, and the body a located on the outside of both tube panels has a double-sided chamber housing f forming each water chamber dθ.

g is attached.

On the other hand, as shown in FIGS. 1, 3 and 3, the area near the pipe board in the side chamber casing g is made into a flat plate with tapered portions on both edges. A guide rail / forming a is arranged horizontally, and a rack 2 is attached to the upper surface of the guide rail l over the entire length of the guide rail l. As shown in FIG. J, a pair of chucking devices 3 are provided at both ends lb of the tube C so as to be temporarily inserted into the opening of the thin tube C and self-retained.

(1) Chucking device In Figures 3 and 3, the symbol ≠ is a flat board fixed to one end of the rail with each mounting bolt, and the back side of this board is , for example, a sliding groove ≠ a is formed with a dovetail groove, and a sliding groove ta with a dovetail groove is formed.
On the back side of the substrate t in the vicinity of is provided a first cylinder device j, for example an air cylinder operated by pneumatic pressure. Further, one end 6a of the slide member B, which is slidably fitted into the sliding groove a, is connected to the output shaft ja of the first cylinder device S.The other end of the slide member 2 is connected to the output shaft ja of the first cylinder device S. A chuck member 7 that fits into the opening of the thin tube C is attached to the portion xb. Further, a second cylinder device such as an air cylinder is installed on the back surface of the slide member B, and a tapered wedge rod for expanding the chuck member 7 is attached to the output shaft fa of this second cylinder device. are connected by a locking pin 10.

Note that both of the chucking devices 3, as described above,
The chucking devices 3 are provided at both ends of the rail I, and both chucking devices 3 are self-retained on the thin tube C at the same time.

That is, when the first cylinder device j operates, the sliding member t connected to the first cylinder device j slides to the left in FIG. Then, the chuck member 7 attached to the other end 6b of the slide member t fits into the opening of the capillary tube C and comes into contact with the surface of the tube board and stops.

Next, when the second cylinder device ♂ operates, the Qi (7) par wedge connected to the second cylinder device r is pulled to the right in Fig. The cone portion a of the tapered wedge expands the chuck member 7, so that the chuck member 7 is inserted into the inner peripheral surface of the thin tube C in close contact.

On the other hand, in the middle of the guide rail, an elevating device (launching device) equipped with a cylinder device moves along the pipe board like an inchworm, as shown in FIGS. 3 and J. It is installed so that it can be raised and lowered vertically along the wall.

(, 2) Elevating device In FIGS. 3 and J, a pair of guide supports /, 2 are erected on the middle upper surface of the guide rail /, and each guide support /, At the top of 2, there is a lower limit stopper /, ? A and an upper limit stopper/3b are attached.

Also, support for each of the above information:! A cylinder device/41, like an air cylinder, for example, is erected vertically on the guide rail/ surrounded by the guide rail/, and the output shaft/la of this cylinder device/4' has a channel. The central portion of the shaped support 15 is fixed (g). Furthermore, both sides of the support body 150 can be moved up and down to the respective guide rods 12, so that the upper and lower limit stoppers/? It is fitted between a and 13b.

Therefore, the support body 15 in the lifting device l/
The above lower limit stopper/ by the above cylinder device/4L
3a and the upper limit stopper/3b.

On the other hand, each square hole /l is bored in both ends 15a of the support body /S in the lifting device //, and a slide member /7 having a rectangular cross section is inserted into each square hole /l. The slide member 170 is fitted so as to be slidable in the horizontal direction, and two chucking devices/gags having the same configuration as the two chucking devices 3 described above are installed at both ends /7a, /'7b of the slide member 170. As shown in the figure, it is provided so as to be temporarily inserted into the opening of the thin tube and self-retained. or,
A cylinder device /9, such as an air cylinder, is attached to the back surface of the central part of the slide member 17, and both rods /qa, / of this cylinder device 19 are attached.
qb is fixed to both ends 15a of the support 15.

Therefore, by driving the cylinder device 19, the slide member 17, which is integral with the cylinder/qa of the cylinder device 19, can slide to the right or left.

(3) In the chucking device No. 1 figure, both ends of the slide member 17 are provided with:
A flat substrate m is fixed by, for example, a mounting bolt, and a sliding groove (wa) in which a dovetail groove is formed, for example, is formed on the outer surface of the substrate y. Further, a third cylinder device 2/ made of an air cylinder is provided on the outer surface of the substrate J near the sliding groove 20a, and an output shaft of the third cylinder device 2/: 1/a is provided. A slide member 22 fitted in the above-mentioned sliding groove wa is connected. Furthermore, a chuck member O that fits into the opening of the thin tube C is attached to one end of the slide member 2, and a third cylinder device such as an air cylinder is attached to the outer surface of the slide member n. :At is installed. Furthermore, a Taber wedge J for expanding the chuck member J is connected to the output shaft Ja of the third cylinder device J.

Therefore, by operating the third cylinder device 2/, the valve connected to the third cylinder device 2/
The ride member 22 slides upward in the figure. Then, the chuck part side J attached to the tip of this slide member U fits into the opening of the thin tube C, and comes into contact with the wall surface of the tube board and stops. Next, when the third cylinder device J17 is operated, the Cheetuk-stroke rod J connected to the third cylinder device J is pulled downward in FIG. 2, thereby causing the taper rod J to The cone portion expands the chuck member 23, and the chuck member J is inserted into the inner peripheral surface of the thin tube C in close contact.

In this way, both of the chucking devices/g are temporarily inserted into each of the capillary tubes C, so that the entire device is self-retained, and is capable of driving the cylinder/l of the lifting device/l. The guide rails/etc. can be relatively moved up and down along the pipe board.

(l/) (Li Cleaning bullet launcher (cleaning head) In Figures 3, 7, and 2, the guide rail/
and the rack 2 is movably provided with a cleaning bullet firing device (also referred to as a cleaning head) roller that moves while being fed intermittently. In FIGS. On both sides of the movable frame 27, ear pieces 27a and 27b representing a pair of front and rear descendants are erected, and each ear piece core a, ? On the inside of 7b is a pair of rolling rollers 2a having a truncated conical shape and having a pair of upper and lower hooks.

2. rb is provided so as to roll in contact with each tapered portion /a formed on both side edges of the guide rail /. Also, the above both ears J7a! A bracket 2q is firmly erected on the upper surface of the movable frame 27 located between the brackets 7b and 7b.
A pulse motor 30 is installed horizontally. Further, a binion 31 mounted on the output shaft of the pulse motor 30 meshes with the rack λ, and when the binion 31 rotates, the movable frame core (/2) which is integrated with the bracket 2q is rotated. is adapted to move to the right or left while being guided by the guide rail/. Furthermore, on the back surface of the movable frame 27 located below the ear piece 27a, a third cylinder device 3.2, such as an air cylinder, faces the opening of the capillary tube C of the header plate. The output shaft 32a of this third cylinder device 32 is installed in this way.
A water pressure gun 33 is connected to.

On the other hand, on the back surface of the movable frame core located directly above the water pressure gun 33, there is a sliding groove 27a such as a dovetail groove, for example.
This sliding groove is provided! ? A part of the water pressure gun 33 is slidably fitted in a. Further, at the tip of the water pressure gun 33, there is an injection nozzle 33 having a truncated conical shape.
A is outside cleaning with the brush loaded in the thin tube C 3
The pressure fluid of the hydraulic gun 33 is supplied from a hydraulic hose 33b.

On the other hand, on the back surface of the movable frame 27 located below the ear piece 271), a sixth cylinder device 3S, such as an air cylinder, is provided, as shown in FIGS. A push rod 36 is attached to the free end of the output shaft J5a of the sixth cylinder device 35 via a connecting rod 3.5b, and parallel to the output shaft 33a. has been done.

Further, the movable frame core located at the free end of the push rod 36 is provided with a discharge lower 7a for storing the cleaning body 3ψ. The cleaning body 3t is disposed obliquely in parallel with the push rod 3S, and is located on a straight line between the push rod 3A and the discharge port 37e.
It is pushed out from 7a and inserted into the thin tube C. Further, the injection nozzle 33a and the discharge port,
? 7a is spaced apart by l pitch of each thin tube C. Furthermore, the above-mentioned car near the above-mentioned push rod 36) I
A supply tube 3g for the cleaning body 3ψ is attached to the Jedge 37 in parallel to the push rod 3A, and a flexible bullet feed tube 3q is connected to the supply tube 3g.

Therefore, when operating the cleaning body ejecting device 26, the injection nozzle 33a and the discharge port of the water pressure gun 33 are placed in advance in a state where they are opposed to the openings of the respective thin tubes C of the tube stopper. ? After facing each other, when the sixth cylinder device 3S is driven, the push rod 36 integrated with the output shaft Jja of the sixth cylinder device 3S moves the cleaning body 3t in the cartridge 37 to the discharge port, ? 7a to the opening of the capillary C. Then,
The above whistle 6 cylinder device 3! In conjunction with the return operation of ;
The pulse motor 30 shown in FIG. 7 and FIG. g is driven for a certain period of time and then stopped.

The claw 9 moves by the pitch of the thin tube C and stops.

Then, the injection nozzle 33a of the water pressure gun 33 moves to the opening of the thin tube C where the discharge port 37a is located.
As a result, the water pressure gun 33 is fitted into the injection nozzle 33a at the opening of the capillary tube C by the sixth cylinder device 32, and the trigger (not shown) of the water pressure gun 33 is actuated to eject the water. Since the pressure fluid is ejected from the nozzle 33a to the thin tube C together with the cleaning body 3q,
This makes sure that all the seaweed, shellfish, limescale, etc. stuck inside the tube C are washed away all at once.

(jl External Cleaning Supply Device (15) In Fig. 1, Fig. IO, and Fig. 1/Fig. A cleaning bullet supply device is installed through the manhole j of the side chamber casing f having the water capacity described above.

That is, in FIG. 10 and FIG. /a has a large number of cleaning bodies 3
An inclined gutter body tA2 for storing 1A is installed obliquely, and a swinging cylinder device≠, ? The output shaft of this swing cylinder device Hiro 3 is provided with a pair of elongated holes IA'la,
A swinging stack 445 having #b is mounted on the shaft. or,
Both long holes IAIA a, ? -111) has a pair of seesaw rods 4'Aa.

+xb is guided by the guide member, and the inclined gutter body 4
4. The cleaning bodies 3t are provided so as to protrude alternately onto the passage of the cleaning bodies 3t of t to intermittently supply seven cleaning bodies 3t, and the seesaw rods IAAa and 4'Ab make one reciprocation. By the way, only one cleaning body 3t is discharged. Furthermore, a mounting bracket (16) ag is attached to one side of the gantry below the seesaw rod +gb, and this mounting bracket ag has an 11th
As shown in the figure, a cylinder arrangement tA9, for example an air cylinder, is attached horizontally. Furthermore, a brush holder 50 having a substantially U-shaped cross section is attached to the mounting bracket ag located at the front end of the output shaft 4'9a of this cylinder device example, and one end of this brush holder Sθ The bullet feed pipe 3q is connected to the section. Therefore, the cleaning bullet supply device Ntu> drives the swing cylinder device t3 to move the swing cylinder device tA, ? The oscillating product rod ti,s integrated with the output shaft of
Since it reciprocates, each long hole condition a of 5 accumulates this oscillation.

Both seesaw rods 'AAa, 4'Ab engaged with Igb
oscillates perpendicularly to the sloped trough body. As a result, the cleaning bodies 311 in the inclined trough are supplied to the brush holder 50 in groups of seven while rolling under their own weight. Then, the cylinder device example supplies the cleaning body 3t in the brush holder SO to the bullet feed pipe 39.

Thus, each cleaning body 3t in the bullet feeding tube 3q is conveyed to the cartridge 37 of the external cleaning firing device 2B, as shown in FIG.

Hereinafter, the effects of the present invention will be explained.

In Fig. 1, after completely draining the water in the condenser, the present invention is carried in through the manhole j of the side chamber g and installed along the pipe paneling located at the opening of the thin tube C. At the same time, the cleaning bullet supplying device which is installed outside the manhole j is connected to the IJ jig 37 through the bullet feed pipe 3 of the cleaning bullet feeder 37.

Next, as shown in FIG. 3 to FIG. /g, and as shown in FIG. 13 tAI, it is temporarily inserted into each predetermined capillary tube C and installed so as to be self-retaining.

That is, first, both of the chucking devices 3 are driven as shown in FIG. 1 and FIG. 12, and the entire device is inserted into each of the predetermined thin tubes C and held by itself. When the first cylinder device j of both the tab and upper chucking devices 3 is operated, the slide member B connected to the first cylinder device j moves as shown in Figures ≠ and 1. Slide to the left. Then, the other end 6b of this slide member 6
A chuck member 7 attached thereto fits into the opening of the capillary C, and comes into contact with the capeboard and stops. and,
Next, when the second cylinder device g operates, the taper rod connected to the second cylinder device g is pulled to the right in Figure 1:1, thereby causing the taper wedge to The second cone portion a expands the chuck member 7, and the chuck member 7 is inserted into the inner peripheral surface of the thin tube C in close contact.

Next, as shown in FIGS. 5 and 6, the channel-shaped support 15 is lifted up along each guide rod by the cylinder device l≠ in the lifting device l/. (See Figure 13 IBI). Furthermore, this support 15
A slide member 17 mounted horizontally on both ends of the slide member 17 can temporarily (tq) insert both chucking devices provided at both ends of the slide member 17 into each of the thin tubes C. Positioning is performed by sliding to the right or left by the cylinder/9c of the cylinder device 19.

Once the insertion positions of the two chucking devices/g are determined, they are temporarily inserted into each predetermined thin tube C and installed in a self-holding manner in the same way as the two chucking devices 3 described above. Ru.

That is, in the figure, the third cylinder device, 2/
When the slide member n connected to the third cylinder device 2/ is operated, it slides upward in FIG. It fits into the opening of C and stops when it comes into contact with the headboard. Next, when the first cylinder mounting j is activated, the tenosaw wedge J connected to the first cylinder mounting j is pulled downward as shown in the figure, and the cone of this tenosaw wedge J is pulled downward. The chuck member J is expanded, and the chuck member O is inserted into the inner circumferential surface of the thin tube 0 in close contact.

In this way, the present invention can be applied to a pair of upper and lower pots (:10
) The locking devices 3 and 7g are temporarily inserted into each capillary C, and the entire device is self-retained.

Next, as shown in FIG. 3, FIG. 7, and FIG.

On the other hand, by driving the extra-cleaning supply device II3 shown in FIG. 10 and FIG.
) Supply one non-cleaning 3IA to the IJ edge 37.

That is, when the swing cylinder device 3 is driven.

Since the swinging rod tS, which is integral with the output shaft of the swinging cylinder device Hiro 3, reciprocates, both seesaw rods engaged with the elongated hole Q-11a of the swinging rod IA3, Hiroshi 6a and 4flAb reciprocate once perpendicularly to the inclined gutter body 4ju. As a result, the above-mentioned inclined gutter body Q is cleaned outside 3≠
While rolling due to its own weight, the brush holder sO
fall inside. Then, the cylinder device 44q moves the cleaning outside 3IA in the brush holder SO to the bullet feed pipe 3.
9 and the supply tube 3g to the cartridge 37 one by one.

On the other hand, the cleaning valve firing device 26 operates in conjunction with the two non-cleaning supply devices.

That is, in FIGS. 7 to 7, the cleaning valve firing device J drives the pulse motor 3o in advance so that the pinion 3/ of the noggle smoke 3o is engaged with the rack of the guide rail/. The movable frame body 27 is moved to a predetermined position relatively along the line 2, and thereby stands by in a state facing the opening of each capillary tube C of the tube headboard.

In this way, the injection nozzle 33a of the water pressure gun 33
and discharge port, ? ? After facing each other, the sixth cylinder device 3s is driven. Then, the push rod 36 integrated with the output shaft 3Sa of the sixth cylinder device 3S is
The washer 3t in the Judge 37 is delivered to the opening of the thin tube C from the discharge port J7a. Then, in conjunction with the return operation of the sixth cylinder device j, the pulse motor 30 moves by /pitch of the thin tube C and stops, so that the discharge port J
Since the injection nozzle 33a of the water pressure gun 33 moves to the opening of the thin tube C where 7a is located, the water pressure gun 33 is thereby fitted into the injection nozzle 33a at the opening of the thin tube C by the sixth cylinder device 32. At the same time,
The injection nozzle 33 is activated by operating the trigger of the water pressure gun 33.
Since pressurized fluid is ejected from a to the capillary tube C together with the cleaning bullet core, seaweed, shellfish, limescale, etc. stuck in the capillary tube C are thoroughly cleaned.

In this way, as shown in FIG. 13 IBJ, each of the horizontal thin tubes C located side by side on the tube cover board is
The above-mentioned cleaning bullet firing device and two cleaning machines (3 tons/-) are used to sequentially clean the cleaning bullet.

Thus, each horizontal tube C in FIG. 13 tBJ
When the cleaning operation is completed, as shown in FIG. 13 (Cl), the cleaning valve firing device 26 is moved together with the guide rail l, and as shown in FIGS. 3 and 5, the lifting device l
It picks up one stage like an inchworm until it reaches the upper tube C which has been cleaned by the cylinder device lt and then stops.

Furthermore, the lifting operation of the lifting device l/ is performed after both chucking devices w3 installed at both ends of the guide rail l are released.

(, 2J) As described above, both of the chucking devices 3 are designed to be self-retained by inserting the entire device into each predetermined thin tube C.

In this way, the automatic cleaning device according to the present invention sequentially cleans the insides of a large number of thin tubes C in the condenser.

Incidentally, the automatic cleaning device of the present invention includes a microcomputer-based control device (not shown) provided on the outside of the manhole j in the condenser, the chucking device J, and the lifting device/l. and cleaning valve launcher 2t
They are automatically controlled and driven by actuation sensors (not shown) attached to each.

Next, in another embodiment of the present invention shown in the first diagram, a water pressure gun 33 equipped with a plurality of injection nozzles 33a is installed in parallel to the cleaning bullet ejecting device, thereby improving the efficiency of cleaning work. This is how it was done.

On the other hand, as shown by the chain line in FIG.
Of course, it is also possible to provide a plurality of cleaning projectile launchers on the top, thereby increasing the efficiency of the cleaning work (:1IA). Further, the present invention may be used for cleaning other heat exchangers instead of a condenser.

〔Effect of the invention〕

As described above, according to the present invention, in a cleaning device for a heat exchanger washer equipped with a large number of thin tubes C, each chucking device 3 is attached to both ends /b of the horizontal guide rail /. A lifting device // equipped with a cylinder device 1 is installed in the middle of the guide rail, and a slide member 17 is attached to the support 15 of the lifting device ii. is slidably provided, each chucking device l is provided at both ends of this slide member /7 by temporarily inserting it into the thin tube C, and the cleaning valve firing device J is intermittently fed to the guide rail l. Since it is installed so that it can be moved while moving, it is possible to efficiently clean the thin tube C etc. without incorporating scaffolding.In addition, since the operation of the cleaning device is performed automatically, there is no need to manually operate the cleaning device inside the water chamber. It eliminates the need for any work, improves safety in bad working environments due to odor and oxygen deficiency, and has excellent effects such as being able to be carried freely through manholes because it is small and lightweight.

[Brief explanation of drawings]

Fig. 1 is a sectional view of a condenser incorporating an automatic cleaning device according to the present invention, Fig. 2 is a side view of an already proposed manual cleaning device, and Fig. 3 is a sectional view of a condenser incorporating an automatic cleaning device according to the present invention. - A front view of the automatic cleaning device, FIG. 5 is a side view of the chucking device incorporated in the present invention, FIG. 5 is a front view of the lifting device incorporated in the present invention, and FIG. 7 is a front view of the cleaning bullet launcher used in the present invention; FIG. R is a side view of the same; FIG.
FIG. 10 is a side view of the cleaning bullet supply device incorporated in the present invention, FIG. 1/FIG. 1 is an enlarged cross-sectional view (2) taken along the chain line A-A in FIG. A diagram for explaining the operation of the device, Fig. 13 +Al l (B+ +
(c+ is 1 Diagram for drinking the effects of the present invention, 7th Q
The figure shows another embodiment of the invention. C. Guide rail, 3. Chucking device, /l.
...Elevating device, ls...Support body, 17...Sliding member, lZa...Chucking device, 26...Cleaning bullet firing device,...Cleaning bullet supply device. Applicant's agent Kiyoshi Inomata

Claims (1)

[Claims] / In a cleaning device for a heat exchanger equipped with a large number of thin tubes,
Each chucking device is provided at both ends of the horizontal guide rail so as to be temporarily inserted into the thin tube and self-retained,
An elevating device equipped with a cylinder device is installed in the middle of the guide rail, a slide member is slidably provided on the support of the elevating device, and each chucking device is temporarily connected to the thin tube at both ends of the slide member. 1. An automatic cleaning device, characterized in that the cleaning bullet firing device is installed on the guide rail so that it can be moved while being intermittently fed. 7. The automatic cleaning device according to claim 1, wherein the cleaning bullet firing device includes hydraulic guns each having a plurality of injection nozzles arranged in parallel. 3. The automatic cleaning device according to claim 1 or 2, characterized in that a plurality of cleaning bullet firing devices are provided on the guide rail. Automatic cleaning device C according to claim 1, 2, or 3, characterized in that a non-cleaning supply device is connected to the arrow cleaning bullet firing device via a bullet feeding tube.