JPS61270040A - Supporting device for partition for heat exchanger pipe binding - Google Patents

Abstract

PURPOSE:To make it possible to readily uniform each space between partitions and align pipe holes by providing a truck having first wheels rolling on rails and second wheels moving in the direction right angled to the rails with lifts. CONSTITUTION:A truck 14 has first wheels 15a and 15b through which it is placed on rails 16a and 16b. A saddle 17 is placed on the truck 14 and capable of moving in the direction right angled to the rails 16a and 16b with the projection of the saddle 17 fitted to the groove of the truck 14. Lifts 13a and 13b supporting holders 12a and 12b are placed on movable carriages 18a and 18b respectively. And the truck 14 is provided with second wheels 21a and 21b. These second wheels 21a and 21b are arranged at right angles to the wheels 15a and 15b and also fitted to the truck 14 through lifting mechanisms 22a, 22b thru 26.

Description

[Detailed Description of the Invention] [Field of Application of the Invention] The present invention relates to a support device 1K for partition plates for heat exchanger tube bundles, and in particular to a support device 1K for supporting partition plates in a predetermined position when assembling a tube bundle of a U-shaped tube heat exchanger. It relates to a device suitable for

[Background of the invention]

In assembling a tube bundle of a heat exchanger, conventionally, a support device for a partition plate consists of a holder a and a screw jack b for vertically moving the holder, as shown in FIG. It is held at the same position and can be moved vertically by means of a screw.

To assemble the partition plates, as shown in Figure 8, each partition plate is supported by two support devices and arranged in a row, and the entire support device is moved horizontally and vertically by raising and lowering it with screws, which is repeated for each support device. hand.

This is done by matching the tube holes in the partition plate to those in the tube plate d. Insertion into the shell is accomplished by moving the cart that supports the shell and sequentially removing the supports as each partition plate enters the shell.

[Purpose of the invention]

According to the present invention, the operation of inserting the tube bundle into the shell can be performed more easily and quickly. The present invention provides an improved support device for a partition plate for a heat exchanger tube bundle.

[Summary of the invention]

In the partition plate support device of the present invention, an elevator that supports a holder that grips the partition plate is installed on a truck, and the truck has first wheels that roll on rails that are arranged parallel to the arrangement direction of the partition plates. The tube bundle can be moved by simply pushing the truck together with the tube bundle in the longitudinal direction of the tube bundle, by making the truck move in the direction that intersects the rails and by attaching a second wheel to the truck via a lifting mechanism. At the same time, each time each partition plate enters the shell, the wheels are lowered to support the entire device on the wheels, and one truck is moved in a direction intersecting the longitudinal direction of the tube bundle. For example, the work can be done easily and quickly by making it possible to retreat from the tube bundle by moving it in a right angle direction, and by making it possible to insert it only by moving the pick-up truck. This is how it was done.
1 In the support device of the present invention,
By having the first wheel supported by rails buried in the floor.

When moving by the second wheel, when retracting the support device 1 after inserting each partition plate into the shell, the second wheel does not have to climb over the rail when descending.
Work can be done easily and quickly.

In an embodiment of the present invention, the lifting mechanism includes an arm rotatably supported on a truck around one point, a screw jack on the truck connected to one end of the arm for rotating the arm, and a screw jack on the truck connected to one end of the arm to rotate the arm. A wheel is attached to the free end of the arm, and the arm is rotated by a screw jack to raise and lower the second wheel, but the present invention is not limited to these structures, and other structures may be adopted. Good too.

Furthermore, in such a lifting mechanism, the operation of the screw jack is not limited to manual operation, but may be performed by an electric motor on the trolley. At the same time, the first wheel is rotated by the electric motor on the truck.

By rotating the second wheel using the electric motor on the arm, the work can be done more easily and efficiently. Furthermore, the electric motor for moving the screw jack and the second wheel may be activated by a signal from a suitable sensor for the approach of the heat exchanger shell.

By doing so, work automation can also be achieved.

Embodiments of the partition plate support device of the present invention will be described below with reference to FIGS. 1 to 6.

[Embodiments of the invention]

This partition plate support device is as shown in FIG.

It includes holders 12a and 12b that hold the partition plate 11. Each holder has an elevator 13a such as a screw jack;
It is installed on the trolley 14 with 13b interposed therebetween.
゛The truck is equipped with wheels 15a. The figure shows only the wheels on one side, but there are also two wheels 15b on the opposite side of one bogie.
, which is attached to an axle that is held by bearings on the truck. The truck is placed on rails 16a and 16b via these wheels.

SAD/I/17 is installed on the top of the truck.

The saddle has a protrusion that engages with a groove provided in the carriage 14, and is movable in a direction perpendicular to the rails 16a, 16b. Furthermore, there is a rail 16 on the top of the saddle. There are protrusions arranged perpendicular to the protrusions a and 16b, and the movable platforms 113a and 18b are attached by fitting grooves therein to the protrusions.

Elevators 13a and 13b that support the holders are installed on each of the movable platforms. For this reason, the holder 12
a, 12b can be vertically moved independently by elevators 13a, 13b.

By moving the movable tables 18a and 18b, they can be horizontally moved independently. In addition to these, the holders 12 a, 12 b can be moved together horizontally with the movement of the saddle 17, and can be moved horizontally together in the orthogonal direction with the movement of the trolley 14.

In addition to the wheels 15a and 15b, one truck has a wheel 21.
a, 21b. These wheels 21a, 21
b is arranged at right angles to the wheels 15a and 15b, and is attached to the truck via a lifting mechanism.

The lifting mechanism itself includes arms 22a, 22b and a screw jack 23 attached to one carriage 14, as best shown in FIG. The arm is a biy24a on the trolley.
, 24b so that it can rotate around it. The screw jack 23 is installed on the trolley 14, and connects the connector at the lower end of the ram 25 to the arm 22a.
, 22 b. Wheels 21a, 2
1b is attached to the opposite end of each arm. Although not shown, the opposite side of the stand 814 is similarly equipped with wheels and arms. These four wheels are @3
As shown in the figure, by rotating the wheel 26 of the screw jack 23 and lowering the ram 25, the wheel 15a,
Protruding below 15b, the trolley 1 is
4 and can be moved in a direction perpendicular to the rails 16a, 16b.

To make this movement easier, rail 1
The wheels 6a and 16b are embedded in the floor with their upper surfaces aligned with the floor surface so that the wheels 21a and 21b do not have to ride over the rails when the truck 14 is moved at right angles to the rails.

In addition, a groove is provided in the part of the floor located above the rail 16b to expose the upper part of the rail 16b.
The wheels 15b for this rail are grooved so that the cart 14 can be moved straight.

This partition plate support device, for example, as shown in FIG.
Used to assemble tube bundles of U-shaped heat exchangers. In the figure, reference numeral 31 indicates a tube plate, 32 a disparity heater zone cover plate, 33 a drain cooler zone seed plate, 34 a U-shaped tube, 35 a shell, and 1.
1 indicates the partition plate as described above. A support device according to the invention is generally designated 37 and each supports a respective partition plate.

Each partition plate is connected to the holder 1 of each support device 37, as described above.
The lower edge is held by 2a and 12b. At this time, since the movable platforms 18a and 18b can move along the saddle 17, the partition plate can be supported at a stable position depending on the size of the partition plate. The distance ij'l of the partition plates can be determined by moving each support device 37 along the rails y16a, 16b. The work of aligning the tube holes 38 of each partition plate with each other and with the tube holes of the tube sheet 31 is carried out on one saddle 17t for each support device.
holder 1 with the screws 13a and 13b.
This can be done by raising and lowering 2a and 12b. At this time, each partition plate has holders 12a, 12
When the trolley 14 is gripped by the rails 16a and 16b,
Since they are guided by b and are arranged almost coaxially, the task of aligning the pipe holes can be accomplished by simply moving the partition plate slightly. Note that the partition plate is fixed in position by spacers and tie rods, and is also fixed to the tube plate 31. The U-shaped tube 34 is connected to the tube hole 38 of each partition plate 11.
The tube end is inserted into the tube hole of the tube plate 31 and fixed to the tube plate 31 by expansion.

The shell 35 is loaded on a support device 39 that can move on a rail on which a partition plate support device 37 is placed. Before inserting the tube bundle into the shell, the support bag [37 is the rail 16a]
, 16b and supported on the floor by wheels 21a, 21b. That is, each support device rotates the wheel 26 of the screw jack 23, and the arms 22a,
Rotate wheel 22b and move wheels 21a and 21b to trolley 1.
4 and is supported on the floor only by these wheels. The shells 35 are loaded on the support device 39 so as to correspond to the height of the tube bundle at this time.

The insertion involves moving the shell 35 by means of a support device 39;
Once the partition plate 11 enters the shell 35.

Holders 12a and 12b are moved to elevators 13a and 13b.
This is done by moving the support device 37 in a direction perpendicular to the rails 16a, 16b and retracting it from the tube bundle. These operations are performed each time the partition plate 11 enters the shell 35, and when the tube bundle is completely loaded into the shell 35, the tube plate 31 is fixed to the shell 35, and the work is completed.

The partition plate support device according to the present invention is thus provided.

When assembling the tube bundles, the centering and spacing of the partition plates can be precisely and easily determined, and the work of loading nine bundles into the shell can also be done easily and quickly.

In the partition plate support device of the present invention, each component can be moved by an electric motor, which allows the work to be done more quickly and easily. Figures 5 and 6 show such a support device. In this case, the twJ machine 41 installed on the trolley 14 operates the screw jack 23 of the lifting mechanism, and the electric motor 42 installed on the arm 22b operates the chain 4.
3 and sprocket wheels 44 and 45 to rotate the wheel 21b, so that the work can be done more easily and quickly when retracting. ) Furthermore, the workability can be further improved by having these electric motors automatically operate in conjunction with the movement of the shell. For example, as shown in FIG. 4, a senna 47 is provided on the cart of the support device for each partition plate, and a rod 46 is sharply connected to the support device 39 of the shell 35. By activating the sensor 47 on the cart of the first support device 37 by movement, the electric motors 42 of all the support devices are moved to the wheels 21a.

21b is lowered, and the tube bundle is aligned with the shell 35! When the first partition plate 11 enters the shell 35,
'+, the motive 42 rotates the wheel 21b and the support device 37
is retracted, and then the rod 46 moves the remaining support device 37
This can be achieved by controlling the motor 42 to sequentially retract the support device 37 each time the sensor 47 contacts the sensor 47 .

〔Effect of the invention〕

As described above, in the heat exchanger tube bundle partition plate support device of the present invention, an elevator for supporting a holder that grips the partition plates is installed on a truck, and the truck is provided with rails arranged parallel to the arrangement direction of the partition plates. It is equipped with a first wheel that rolls on the top, and a second wheel that allows the truck to move in a direction that intersects the rails and is attached to the truck through a lifting mechanism, and each partition plate is connected to the shell. The evacuation from the tube bundle, which is performed each time the pipe is inserted, lowers the second wheel, causing the second wheel to support the entire support device.
Since this can be done by moving the cart in the short direction of the tube bundle, the insertion of the pick tube bundle into the shell can be accomplished by moving the cart, making the work easy and quick. Moreover, the work can be automated. Perhaps this is foolish, but the work of matching the spacing and pipe holes between the partition plates can be done in the same way as in the past, since the partition plates are supported by a trolley on rails and are arranged almost coaxially when gripped by a holder. This can be done by only slightly moving the partition plate without moving the entire device, and the tube bundle can be assembled easily.

[Brief explanation of the drawing]

Fig. 1 is a perspective view showing one embodiment of the partition plate support device of the present invention, Fig. 2 is a front view, Fig. 3 is a front view in an operating state different from Fig. 2, and Fig. 4 is a state for casing. FIG. 5 is a front view showing another embodiment of the support device of the present invention, and FIG. 6 is a front view in an operating state different from FIG. 5. FIG. 7 is an explanatory diagram showing the configuration of a conventional partition plate support device. FIG. 8 is an explanatory diagram showing the state of use thereof. 11... Partition plate, 12a, 12b-holder, 13
a. 13b...Elevator, 14...Dolly, 15a,
15 b...first wheel, 16 a, 16 b
...VA/, 21a. 21b...second wheel, 22a, 22b-26
...Lifting mechanism.

Claims (1)

[Scope of Claims] 1. A heat exchanger tube bundle partition plate support device comprising a holder that vertically holds a partition plate of a tube bundle and an elevator that supports the holder so as to move the partition plate vertically; is installed on a trolley, and the trolley has a first wheel that rolls on a rail arranged parallel to the arrangement direction of the partition plates, and a first wheel that moves in a direction that intersects the rails and a lift mechanism that moves the trolley. and a second wheel attached to the heat exchanger tube bundle partition plate. 2. The partition plate for a heat exchanger tube bundle according to claim 1, wherein the first wheel is supported by a rail buried in the floor, and the partition plate for a heat exchanger tube bundle is prevented from climbing over the rail when moving by the second wheel. support device. 3. The elevating mechanism has an arm rotatably supported on a truck and a drive means on the truck connected to one end of the arm for rotating the arm, and a second wheel is attached to the other end of the arm. A support device for a partition plate for a heat exchanger tube bundle according to claim 1 or 2. 4. The support device for a partition plate for a heat exchanger tube bundle according to claim 3, wherein the driving means comprises a screw jack installed on a truck, and the ram of the screw jack is connected to an arm. 5. The support device for a partition plate for a heat exchanger tube bundle according to claim 4, wherein the drive means includes an electric motor installed on a truck for moving the ram of the screw jack. 6. The support device for a partition plate for a heat exchanger tube bundle according to claim 5, wherein the lifting mechanism includes an electric motor on an arm that rotates the second wheel.