JP3325387B2 - Lid attachment / detachment device for pipe cooler - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an apparatus for attaching / detaching a lid of a pipe cooler, which can easily and safely attach / detach a lid of a pipe cooler installed in the middle of a pipe at a drainage station or the like. It is.

[0002]

2. Description of the Related Art In a drainage pumping station or the like, when a drainage pump is driven by a main engine such as a diesel engine, the drainage pump pumps up water in a suction tank and discharges it to a drainage culvert.
A self-cooling in-pipe cooler is installed in the middle of the drainage pipe, and water that is pumped up by the drainage pump and flows through the drainage pipe,
A method of cooling main engine cooling water by so-called raw water is employed.

[0003] This in-pipe cooler has openings formed on the left and right sides of a cooler main body interposed in the middle of a drainage pipe, and a cooling unit is provided inside a lid detachably attached to each of the openings. The cooling water in the cooling unit is cooled by the raw water flowing in the cooler body.

[0004] In this type of in-pipe cooler, the cooling unit is very susceptible to aging due to scale attached to the inside and outside, and impurities in the raw water easily adhere to the cooling unit. In order not to cause overheating of the main engine, it is necessary to remove the lid from the cooler body regularly or timely, and to perform maintenance, inspection, or repair of the cooling unit.

[0005] However, when the in-pipe cooler is large, even the lid is very heavy, and a cooling unit having a large number of cooling pipes is mounted inside the lid. When the lid is attached or detached, the cooling unit must be carefully handled so as not to damage the cooling unit. Therefore, it is very difficult to attach or detach the lid.

Therefore, conventionally, as described in Japanese Utility Model Publication No. 4-49756, a caster is provided on the lid, and a temporary rail is attached to the leg of the cooler body when the lid is attached or detached. The cover is attached and detached while running the casters along the temporary rail.

[0007]

In this conventional method,
Each time the lid is attached or detached, the temporary rail must be attached to or detached from the legs of the cooler body. For this reason, although the safety of the work can be ensured, there is a disadvantage that handling of the temporary rail becomes very troublesome.

On the other hand, it is conceivable that a guide rail is always laid on the side of the installation location of the cooler main body without employing the temporary rail system. In this case, however, the guide rail is provided on the side of the cooler main body. You have to secure the space for laying rails,
Extra space is needed. In addition, in order to lay the guide rail, the ground on the side of the cooler body must be substantially horizontal, and if there are other equipment, steps, etc. near the cooler body, the guide rail cannot be laid. For example, there is a drawback that the conditions of the installation place are very limited.

The present invention has been made in view of the above-mentioned conventional problems, and has as its object to provide an in-pipe cooler attaching / detaching apparatus capable of easily and safely attaching / detaching a lid without being restricted by an installation place.

[0010]

According to the first aspect of the present invention, there is provided a cooler body having an opening at a side portion, and a detachable and attachable side surface of the cooler body so as to cover the opening. To a drainage station in which an in-pipe cooler 13 having a lid 17 mounted on the inside and a cooling unit 18 mounted inside each lid 17 so as to come into contact with raw water flowing through the cooler body 16 is provided. In addition, above the cooler main body 16 of the in-tube cooler 13, a guide rail 67 is arranged in the attaching / detaching direction of the lid 17, and a trolley 59 is provided movably along the guide rail 67, and in the trolley 59, A suspending tool 58 for suspending the cover 17 on a line passing through the center of gravity of the cover 17 is provided. The suspending tool 58 is provided with a turnbuckle 64 that can be adjusted in the vertical direction. The lower part is connected to the trolley 59 by a pivot shaft 73 arranged in a horizontal direction orthogonal to the guide rail 67, By the pivot shaft 73 parallel to pivot 66 is obtained by connecting each to the lid 17.

According to a second aspect of the present invention, in the first aspect of the present invention, the lid 17 is provided on the side of the cooler main body 16.
Attachment part 22 is detachably provided with bolts 24 and suspended
A bar 58 is provided in parallel with the end face side of the lid attaching portion 22 .

According to a third aspect of the present invention, in the first or the second aspect of the present invention, the lid 17 is always attached to the hanging member 58.
It is in a connected state .

[0013]

According to the present invention, when attaching and detaching the lid 17, the lid 17 is suspended via the suspending tool 58 by the trolley 59 movable along the guide rail 67, and the trolley 59 is suspended in the suspended state. Is moved along the guide rail 67. Therefore, there is no need for the operator to support the lid 17 when attaching and detaching the lid 17, and the operation can be performed easily and safely. Further, since the guide rail 67 is located above the cooler main body 16, it is not necessary to secure an extra space on the ground side. Moreover, since the operation is performed while the lid 17 is suspended, there is no restriction on the installation location as long as it does not interfere with the lid 17.

Further when attachment and detachment of the lid 17, as the lid 17 to maintain substantially the same orientation as the orientation of the mounting state, hanger
58 allows the lid 17 to be hung. For this reason,
When attaching and detaching the lid 17, there is no need to largely adjust the posture, and the work is further facilitated. Moreover, the hanging tool 58 expands and contracts.
Adjustable, hanging according to the mounting position of the lid 17
The tool 58 can be adjusted.

[0015]

[0016]

DESCRIPTION OF THE PREFERRED EMBODIMENTS Embodiments of the present invention will be described below in detail with reference to the drawings. Fig. 6 shows the drainage system of the drainage station, 1 is a suction tank for drainage, 2 is a fresh water tank, 3 is a building, and the inside of this building 3 is connected to the engine room 5 and the pump room 6 via the upper floor 4. It is partitioned. 7 is a drainage culvert. Reference numeral 8 denotes a drainage pipe, which is installed between the water absorption tank 1 and the drainage culvert 7 via the inside of the pump room 6 of the building 3.

Reference numeral 9 denotes a vertical-axis mixed-flow drain pump or the like, which is provided at the lower end of the drain pipe 8 on the side of the water absorption tank 1.
9 pumps up the water in the water absorption tank 1 and drains it to the drainage culvert 7 through the drainage pipe 8.

Reference numeral 10 denotes a main engine for driving the drainage pump 9, which uses a diesel engine or the like.
3 on the upper floor 4 in the engine room 5 and
11, the driving shaft 12 is connected to the drainage pump 9 interlockingly. Reference numeral 13 denotes an in-pipe cooler for cooling the cooling water of the main engine 10, which is interposed in the pump room 6 of the building 3 in the middle of the drain pipe 8. 14 is an overhead crane. In-pipe cooler
Reference numeral 13 is for cooling the cooling water of the main engine 10 and the like by the raw water flowing in the drainage pipe 8, and is configured as shown in FIGS.

That is, the in-pipe cooler 13 is interposed in the middle of the drainage pipe 8, and has openings 15 on both left and right sides of the drainage pipe 8.
A cooler main body 16 having a lid 17, which is detachably attached to both left and right sides of the cooler main body 16 so as to cover each opening 15,
Each lid 17 is brought into contact with the raw water flowing through the cooler body 16.
The cooling unit 18 is mounted inside the cooling unit 18 and guide means 19 for diverting and guiding the raw water flowing in the cooler body 16 to the left and right cooling units 18.

The cooler body 16 has a substantially hollow box shape,
On both sides of the drainage pipe 8 in the pipe direction, a flange-shaped pipe connection 21 is integrally formed via a short cylindrical portion 20, and each drainage pipe 8 is formed with a flange on each pipe connection 21 from both sides. Are joined. On both left and right sides of the cooler main body 16, a rectangular opening 15 and a lid attaching portion 22 surrounding each opening 15 from the outer peripheral side are integrally formed, and each lid attaching portion 22 is formed.
In addition, a lid 17 for closing the opening 15 is attached.

The lid 17 has a rectangular shape in a side view and has a mounting portion 23 on the outer peripheral side, and an end face of the mounting portion 23 is in contact with an end surface of the lid mounting portion 22 on the side of the cooler main body 16. In this state, it is detachably attached to the cooler main body 16 by the reamer bolt 24. Note that a plurality of reamer bolts 24 are provided at predetermined intervals in the circumferential direction.

The lid 17 is formed in a flat dish shape having a concave section 25 on the inner side. The concave section 25 and each opening section 15 on the side of the cooler main body 16 define an accommodation concave section for accommodating the cooling unit 18. 26 are formed. In addition, in the peripheral wall of the lid 17,
The upper and lower portions are formed in a substantially horizontal shape, but inclined walls 27 are provided on both sides in the pipe direction so that the raw water flows smoothly in the accommodation concave portion 26 without stagnating.

As shown in FIGS. 2 and 4, the cooling unit 18 includes a pair of upper and lower flat connection boxes 28 and a lower connection box 29.
And a cooling pipe group 35 composed of a large number of cooling pipes 30 disposed between the upper connection box 28 and the lower connection box 29, and a line connecting the inner surface of the cylindrical portion 20 of the cooler main body 16 is provided. The opening 15 on the cooler body 16 and the recess on the lid 17
25, and is disposed in the accommodation recess 26. In addition,
A predetermined gap is secured between the cooling unit 18 and each part of the cooler body 16 and the lid 17.

The upper connection box 28 and the lower connection box 29 have a flat band shape and are arranged vertically in parallel along the pipe direction. The upper connection box 28 has a lid via a U-shaped mounting plate 30.
The lower connection box 29 is connected to the upper wall portion 31 of the cover 17 via a U-shaped mounting plate 32 and an L-shaped mounting plate 33.
Each is fixed to 34. Each mounting plate 30, 32, 33 thin plate is used, so as to absorb the expansion and contraction due to thermal deformation of the cooling unit 18 side by the mounting plates 30, 32, 33.

Each cooling pipe 30 of the cooling pipe group 35 is
A large number are provided in the up-down direction at predetermined intervals in the pipeline direction and the left-right direction between the power supply and the lower connection box 29. Each cooling pipe 30
The cooling pipe 30 has upper and lower ends fixed to an upper connection box 28 and a lower connection box 29, respectively.

In the upper connection box 28 and the lower connection box 29, a plurality of cooling pipes 30 of the cooling pipe group 35, that is, a plurality (for example, about 3 to 7) of a plurality of cooling pipes arranged in a line in the left-right direction. Passages 36 and 37 are provided to sequentially connect a plurality of the cooling pipes 30 of the cooling pipe group 35 in series so that the two sets of the cooling pipes 30 are set as one set and the sets are connected in series. . These passages 36 and 37
Divides the interior of the upper connection box 28 and the lower connection box 29 into partition walls 38 and 39.
It is formed by partitioning with.

A cooling water inlet pipe 40 and a cooling water outlet pipe 41 are connected to both ends of each lower connection box 29 in the pipe direction from below. The cooling water inlet side pipe 40 and the cooling water outlet side pipe 41 are connected to the respective lids 17 through through holes formed at the lower part of the side wall portions 42 of the respective lids 17.
Are connected to a cooling water inlet pipe 43 and a cooling water outlet pipe 44, respectively.

The cooling water inlet pipe 43 and the cooling water outlet pipe 44 are guided to the lower side of the cooler main body 16 via the lower side of the lid 17, and the left and right sides of the lower side of the cooler main body 16 are Cooling water inlet piping 43
Are connected to a cooling water inlet pipe 45, and left and right cooling water outlet pipes 44 are connected to a cooling water outlet pipe 46 in a detachable manner.

An air vent pipe 47 is connected to the upper connection box 28 above the downstream end. Air vent piping 47
Penetrates the upper portion of the side wall portion 42 of each lid 17 and projects outside.The air vent pipe 47 is provided with a manually operable on-off valve 48 and an air vent valve 49 outside the lid 17. ing. The cooling water inlet pipe 43 and the cooling water outlet pipe 44 are provided with manually operable on / off valves 50 and 51, and the cooling water inlet pipe 45 and the cooling water outlet pipe 46 are provided with rod-shaped thermometers 52 and 53, respectively. Have been.

The guiding means 19 is constituted by a hollow guiding cylinder 74 integrally formed in the cooler body 16 over the upper wall portion 54 and the lower wall portion 55. Guiding the cylindrical body 74 is located substantially at the center between the right and left of each cooling unit 18, the large-diameter arc-shaped portion 75 of the upstream side, a small-diameter arcuate portion 76 of the downstream side, between these arcuate portions 75 and 76 It is configured in a cross-sectionally deformed long cylindrical shape integrally provided with a pair of left and right side walls 77 connected in a substantially straight line.

The upper wall portion 54 and the lower wall portion 55 of the cooler main body 16 are provided.
Have openings 54a, 55 corresponding to the upper and lower ends of the guide cylinder 74.
a are formed, and the upper opening 54a is closed by a detachable upper lid 56. Each lid 17 is a connecting tool
57, are connected to two trolleys 59 disposed above the cooler main body 16 via a suspending tool 58 so as to be suspended. When the lid 17 is hung, the end surface of the mounting portion 23 is maintained such that the lid 17 maintains the posture substantially the same as the posture in the mounted state, that is, the posture in which the lid 17 is kept substantially vertical in the embodiment. On a line parallel to the side and passing through the center of gravity of the lid 17, it is detachably fixed to the mounting portion 23 on the upper side of the lid 17 by a bolt 60.

As shown in FIG. 5, the hanging member 58 is vertically turned by a turnbuckle 64 composed of a turnbuckle main body 61 and a pair of upper and lower screw shafts 62 and 63 having a reverse screw structure screwed thereto. It is configured to be adjustable for expansion and contraction. The lower end of the screw shaft 63 of the turnbuckle 64 is detachably and swingably connected to a connecting member 57 by a pivot shaft 66 made of a bolt or the like.

The trolley 59 is provided on the ceiling of the pump room 6,
It is movably supported and guided on a lower surface of the upper floor 4 by a guide rail 67 mounted substantially horizontally along a mounting / removing direction of the lid 17. The guide rail 67 is made of H-section steel,
It is fixed to the lower surface of the upper floor 4 via a U-shaped bracket 68, and is supported from below by receiving members 69 made of H-shaped steel at both ends in the longitudinal direction.

The trolley 59 is composed of a trolley frame 70, four wheels 71 supported by the trolley frame 70, and a pulley 72 supported by the side of the trolley frame 70. The trolley frame 70 has a screw shaft 62 of a turnbuckle 64 on its lower side.
Are connected by a pivot shaft 73 so as to be detachable and swingable. The pivot shafts 66 and 73 are arranged in a horizontal direction orthogonal to the guide rail 67. A drive cable (not shown) such as a wire is wound around the pulley 72, and the trolley 59 is reciprocated along the guide rail 67 via the drive cable.

Next, the operation of the above configuration will be described.
When the water in the water absorption tank 1 is drained to the drainage culvert 7 through the drainage pipe 8, the main engine 10 is started, and the main engine 10 drives the drainage pump 9 via the reduction gear 11 and the drive shaft 12. . Then, the drainage pump 9 operates and pumps up the water in the water absorption tank 1.
The water is drained to a drain culvert 7 through a drain pipe 8 and an in-tube cooler 13.

During this drainage, cooling water is circulated between the main engine 10 and each cooling unit 18 of the in-pipe cooler 13 to cool the main engine 10 with the cooling water and pass through the main engine 10. The high-temperature cooling water is supplied to the cooler body 16 of the in-tube cooler 13.
It is cooled by raw water passing through the inside. That is, the high-temperature cooling water that has passed through the main engine 10 first enters the cooling water inlet pipe 45, and is separated from the cooling water inlet pipe 45 into the left and right cooling water inlet pipes 43. It flows to the left and right cooling units 18 via the side pipe 40.

In each cooling unit 18, the cooling water enters the passage 37 at one end of the lower connection box 29, rises in the two rows of cooling pipes 30 and reaches one end of the upper connection box 28. Then, the cooling water is guided to the next two rows of cooling pipes 30 via the passage 36 of the upper connection box 28, descends in the two rows of cooling pipes 30, and is next to the lower connection box 29. It flows into passage 38. Thereafter, the cooling water flows through the cooling unit 18 while repeatedly ascending and descending alternately through the upper connection box 28 and the lower connection box 29 with the two rows of cooling pipes 30 as a set.

On the other hand, the water pumped by the drain pump 9 passes through the inside of the cooler body 16 of the in-pipe cooler 13 provided in the middle of the drain pipe 8 and is drained to the drain culvert 7.
At this time, a guide cylinder of the guide means 19 is provided in the cooler body 16.
There is provided a guide tube 74 for guiding the water flowing in the direction indicated by the arrow a from the upstream pipe connecting portion 21 side, that is, the raw water to the right and left by the guide cylinder 74.

Therefore, the raw water passing through the cooler main body 16 is once divided into two flows (in the direction indicated by the arrow b) passing on both sides of the guide cylinder 74, and is divided into the left and right housing recesses 26. Downstream while passing near the cooling units 18
It flows in the direction of the arrow. Then, the raw water merges on the downstream side of the guide cylinder 74, and then flows to the drainage culvert 7 through the downstream pipeline connection 21.

For this reason, the cooling water in each cooling unit 18, while passing through the cooling unit 18, is separated from the raw water flowing in the cooler main body 16 by the upper connection box 28, the lower connection box 29, and a large number of cooling water. It is gradually cooled by the heat exchange performed through the tube 30. Incidentally, when the temperature of the cooling water on the side of the cooling water inlet pipe 45 is about 55 ° C., when the cooling water passes through each cooling unit 18 and exits the cooling water outlet pipe 46, it can be cooled to about 40 ° C. is there.

The cooling water cooled in each cooling unit 18 finally reaches a passage 37 at the other end of the lower connection box 29, and from there through a cooling water outlet pipe 41 and a cooling water outlet pipe 44. After merging with the cooling water outlet pipe 46, the cooling water is sent to the main engine 10 again via the cooling water outlet pipe 46 to cool the respective parts of the main engine 10.

When disassembling the in-pipe cooler 13 to perform maintenance, inspection, repair, or the like, the lid 17 is connected to the trolley 59 supported and guided by the guide rail 67 via the suspending tool 58. The fixing of the lid 17 to the cooler body 16 is released.

That is, when the lid 17 is always connected to the hanging tool 58 of the trolley 59, the length of the turnbuckle 64 is adjusted in advance according to the length of the lid 17, so that In this state, the reamer bolt 24 is loosened and the fixing of the lid 17 is released. Then, the lid 17 is hung by the trolley 59 via the hanger 58. In this suspended state, the lid 17 maintains substantially the same posture as the mounted state on the lid mounting portion 22 side of the cooler main body 16, that is, the substantially vertical posture.

Then, after the fixing of the lid 17 is released, the trolley 59 is moved along the guide rail 67 in the direction indicated by the arrow d by operating a drive cable (not shown), and the cooling unit 18 is moved to the cooler main body.
Pull out from opening 16 of 16. And guide rail 67
When the trolley 59 is moved to the end of the
The trolley 59 is stopped at that position, and maintenance, inspection, repair, and the like of the cooling unit 18 are performed while the cover 17 is suspended.

When the maintenance, inspection and the like are completed, the trolley 59 is moved in the opposite direction along the guide rail 67, and the lid 17 is moved toward the opening 15 side of the cooler main body 16, and the cooling unit 18 is moved. After fitting into the opening 15, the mounting part of the lid 17
23 is a lid attachment portion on the outer periphery of the opening 15 on the side of the cooler body 16
Make contact with 22. Then, after aligning the bolt holes of both the lid attaching portion 22 and the attaching portion 23, the reamer bolt 24 is inserted into the bolt hole to fix the lid 17 to the cooler main body 16 side.

This embodiment has the following advantages.
In this series of disassembly and assembling work, since the lid 17 is suspended by the trolley 59 via the suspending tool 58, it is necessary for the operator to support the weight of the lid 17 when attaching and detaching the lid 17. Work can be performed easily and safely.

Further, when the lid 17 is detached from the cooler main body 16, the lid 17 is suspended in a substantially vertical state having the same posture as the mounted state.
If the trolley 59 is moved along the guide rail 67 as it is, the cooling unit 18 can be attached to and detached from the opening 15 of the cooler main body 16, and the cooling unit 18 is damaged by dropping or falling down of the lid 17. There is no fear of doing it.

Also, since the lid 17 maintains the same posture as the mounted state, the lid 17 is attached to the lid mounting portion 22 of the cooler main body 16.
When the trolley 59 is moved in the opposite direction, the end surface of the mounting portion 23 can be easily brought into contact with the end surface of the lid mounting portion 22 on the opening 15 side of the cooler body 16. Therefore, it is not necessary to largely adjust the posture such as the angle and the direction of the lid 17, and the operation is very easy.

The suspended state of the lid 17 maintains the same posture as the mounted state, but the upper and lower ends of the suspending tool 58 are pivotally supported on the trolley 59 and the lid 17 by parallel pivot shafts 66 and 73. Because it is connected, the attitude of the lid 17 is
Can easily be changed around 66,73. Therefore, maintenance, inspection, and the like of the cooling unit 18 can be easily performed. Hanging tool
Since the turnbuckle 64 that can be extended and contracted is used for the 58, the length of the suspending tool 58 can be easily adjusted according to the height of the lid 17, and the structure is simple.

Further, a guide rail is provided above the cooler body 16.
Since the lid 17 is suspended via the suspending tool 58 by the trolley 59 moving along the guide rail 67, the rails and the like are disposed on the side of the installation location of the cooler main body 16. Compared to the case, the space can be used more effectively, and even if there are other devices, steps, etc. beside the place where the cooler main body 16 is installed, as long as they do not interfere with the suspended lid 17, Work can be easily performed without any problem in attaching and detaching the 17.

Although the embodiment of the present invention has been described above, the present invention is not limited to this embodiment. For example, in the embodiment, two trolleys 59 are provided on the guide rail 67 side corresponding to the lids 17 on the left and right sides, and each trolley 59 is provided.
Although 59 and each lid 17 are always connected with the hanging tool 58,
One trolley 59 may be moved so that the trolley 59 also serves as the left and right lids 17. In that case, the pivot shaft at the lower end of the screw shaft 63
You can remove 66.

Further, a chain block or the like may be used for the suspending tool 58 instead of the turnbuckle 64. The guide rail 67 only needs to be above the cooler main body 16, and may be installed, for example, so that both ends in the longitudinal direction are supported by columns.

[0053] trolley 59 is self-propelled with a motor on the trolley 70, the other, as long as it can move along the guide rails 67, the format, structure, etc. have name separately by problems.

[0054]

According to the first aspect of the present invention, a cooler main body 16 having an opening 15 on a side portion, and detachably mounted on a side surface of the cooler main body 16 so as to close the opening 15. a lid 17 which is cooler Oite the drainage station placing the tube cooler 13 having a cooling unit 18 mounted on the inside of the lid 17 in contact with the raw water flowing through the body 16 , Pipe cooler
A guide rail 67 is disposed above the cooler body 16 in the direction of attachment and detachment of the lid 17, and a trolley 59 is provided movably along the guide rail 67, and the center of gravity of the lid 17 is placed on the trolley 59. A suspending tool 58 for suspending the lid 17 on a line passing therethrough is provided.The suspending tool 58 includes a turnbuckle 64 that can be adjusted to expand and contract in the vertical direction, and an upper end of the turnbuckle 64 is formed as a guide rail 67. Pivot shaft 73 arranged in a horizontal direction perpendicular to
Since the lower end is connected to the lid 17 by the pivot shaft 66 parallel to the pivot shaft 73, the worker needs to support the lid 17 when attaching and detaching the lid 17. Work can be performed easily and safely.

[0055] Also this guide rail 67 is located above the cooler body 16, to work hung the lid 17 through the lower tool 58 suspended on the trolley 59 which is guided by the guide rail 67
Since it is collected by, in comparison with the case of arranging the rails or the like on the side of the location of the cooler body 16, can be effectively used space,
Moreover, even if there are other devices, steps, etc. beside the place where the cooler body 16 is installed, as long as they do not interfere with the suspended lid 17,
They do not become a problem in attaching and detaching the lid 17,
There is no restriction due to the conditions of the installation location.

Further, the trolley 59 has a line passing through the center of gravity of the lid 17.
A suspending tool 58 for suspending the lid 17 is provided on the upper part.
Since, at the time of attachment and detachment of the lid 17, the lid 17 can be maintained substantially the same orientation as the orientation of the mounting state increased without the need to adjust the attitude of the lid 17, to perform a more easily work Can be.

[0057] Since the hanger Ri lowering tool 58 is telescopic adjustable configured, suspended in accordance with the mounting position of the cover 17 instrument 58
There is an advantage that can be adjusted.

[Brief description of the drawings]

FIG. 1 is a partially cutaway front view of an in-pipe cooler showing one embodiment of the present invention.

FIG. 2 is a partially cutaway side view of the in-pipe cooler showing one embodiment of the present invention.

FIG. 3 is a partially cutaway plan view of the in-pipe cooler showing one embodiment of the present invention.

FIG. 4 is a partially cutaway side view of a cooling unit showing one embodiment of the present invention.

FIG. 5 is a cross-sectional front view of a hanging portion showing one embodiment of the present invention.

FIG. 6 is a sectional view of a drainage station showing an embodiment of the present invention.

[Description of sign]

 8 Drainage line 9 Drainage pump 11 Main engine 13 In-tube cooler 15 Opening 16 Cooler body 17 Lid 18 Cooling unit 57 Connector 58 Suspension 59 Trolley 67 Guide rail

Claims (3)

(57) [Claims] A cooler body (1) having an opening (15) on the side.
6), a lid (17) detachably attached to the side of the cooler body (16) so as to close the opening (15), and a cooler body (16).
Each lid in contact with the raw water flowing through the inner Oite the drainage station that mounted cooling units inside (18) and tube condenser equipped with a (13) arranged in (17), tube cooler ( Above the cooler body (16) of (13), guide rails (6
7), a trolley (59) is provided movably along the guide rail (67), and the trolley (59) is placed on a line passing through the center of gravity of the lid (17). )
(58), the hanging tool (58) is provided with a turnbuckle (64) that can be adjusted in the vertical direction, and the turnbuckle (64)
The upper end of the pivot shaft (66) parallel to the pivot shaft (73) and the lower end of the trolley (59) by the pivot shaft (73) arranged in the horizontal direction perpendicular to the guide rail (67). And a lid attaching / detaching device for the in-tube cooler, wherein the lid attaching / detaching apparatus is connected to the lid (17) by means of a lid. 2. A lid on the side of the cooler body (16).
Attachment part (22) is detachably provided with bolts (24) and suspended
Install the lowering tool (58) parallel to the end face of the lid
Tube cooler lid attachment apparatus of claim 1, wherein the girder. 3. The lid (17) is always connected to the suspension (58).
Tube cooler lid attachment apparatus according to claim 1 or 2 characterized in that it is a state.