JPS6039957B2 - Assembly and support method of cooling coil of closed type evaporative cooling tower - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention relates to a method for supporting cooling coils in a closed evaporative cooling tower.

In general, a closed evaporative cooling tower is used to cool the process fluid to be cooled (for example, cooling water for a chemical plant) without exposing it to the outside air, and has a structure as shown in Figure 1. .

That is, a cooling coil section 1 for flowing process fluid is installed in the middle of the tower main body, and water sprinkled from a water sprinkler 2 at the top of the cooling coil section 1 and intake outside air sucked from an outside air intake port 4 by a blower 3 are provided. This cooling coil part 1 makes contact, and the heat of the process fluid inside the cooling coil is taken away by the water spray and the intake outside air.
A portion of the sprinkled water evaporates, and the heated and humidified air is forcibly exhausted from the top. However, in FIG. 1, 5 is a lower water tank, 6 is a water circulation pump, 7 is an eliminator, 8 is a motor, and 9 and 9' are the inlet and outlet of the process fluid. When constructing a closed type evaporative cooling tower, a large load is applied to the cooling coil part 1, which is the cooling function part, so especially in the case of a large tower, it is difficult to assemble and support the cooling coil part. Special consideration must be given. In other words, it is necessary to provide a support mechanism that can withstand design loads such as earthquakes and to simplify maintenance, as well as to release expansion and contraction using hot air from the cooling coil. However, when this cooling coil has a serpentine shape, it is not easy to fix and support it in the air. Conventionally, the direct guard section was first fixed, and then each straight pipe was connected to a bent pipe. It was common practice to weld them together to form a serpentine shape. That is, before forming a meandering coil, the straight part is passed through the holes in a flat plate, the ends of the many missed tubes are connected to the holes in this flat plate with bent tubes, and the flat plate with many holes is It was usual to use fixed support for groups of survey tin coils as support members. For this purpose, in addition to the careful drilling of the plate, at least one hole must be welded to each end of the hole through which the tube will be inserted.
It is not possible to weld one curved pipe in advance. For this reason, the bent pipe must be welded after the assembly work.
This welding work has to be carried out between a large number of intricate tube groups, making it a very difficult and laborious work, resulting in lower manufacturing efficiency and higher costs. The present invention was made with the aim of solving the above-mentioned problems, and is a survey tin coil formed by bending and forming a single tube, or a survey tin coil formed by welding a curved tube to a straight tube in advance. The present invention provides a method for easily assembling and supporting a cooling coil.

That is, the method for assembling and supporting cooling coils of a closed type evaporative cooling tower according to the present invention is as shown in the drawings.
0 is supported by a frame village 11 on one side, and a plurality of survey tin coils 13, 13', 13''... Insert ... sequentially (
(FIG. 3), then a pond side frame member 11' is attached to the open □ side 12. Additionally, the survey antenna coils 13, 13', 13''...... by this assembly and support method are also available.
14 in the vertical direction as shown in Figure 4.
The purpose of the present invention is to provide an improved method in which a vertically woven baser 15 is interposed as shown in FIGS. 5 and 6. Further details according to the drawings:
A plurality of identically shaped survey tin coils 13, 13', 13'', etc. are made by bending and forming a single tube in advance or by welding a straight tube and a curved tube. Then, these survey coils 13, 13',
13''...... is supported in a frame having a cross member 10 serving as a support as shown in Fig. 2, but the machine crosspiece 10 is supported only on this frame member 11. Then, the survey coils 13, 13', 13'', etc. are sequentially inserted orthogonally into the gaps between the horizontal bars 10 from the opening side 12 from which the other frame village 11' has been removed. .

When inserting this, depending on the design value of the cooling coil,
Alternately insert one step at a time through the gap between each side branch 10 (
(Figs. 5 and 6), or by placing a forehead needle on the curved pipe so that each survey tin coil itself has a zigzag cross section (Fig. 4), or by supporting every other stage on the horizontal crosspiece 10. (Fig. 5 and Fig. 6), etc., as necessary.
As shown in FIGS. 2 and 3, each survey coil 13, 13', 13''......
The horizontal support is provided by the headers 16, 16.
Although there is virtually no problem in supporting the survey coils 13, 13', and 13' in the vertical direction, as shown in FIG.
It is preferable to interpose it as a spacer between 13''.

In the case shown in Fig. 4, it is necessary to fix the vertical beam 14 to the frame material, but in order to omit this work, it is recommended to use a vertically woven baser 15 as shown in Fig. 6. good. The spacer 15 is made of, for example, a thin metal plate or wire having a relatively large deformability, and is interposed between the horizontal bars 10 so as to thread the gap in the vertical direction. In this way, the method of the present invention makes it possible to make a survain tin coil by molding or welding a single tube, and then support it with free relief inside the frame. The welding work after assembly can be omitted, the supporting member can be simplified, and deformation of the cooling coil and other troubles can be prevented.

Furthermore, since disassembly work is facilitated, maintenance is also easy, and it can be applied to large closed evaporation towers with great effects.

[Brief explanation of the drawing]

FIG. 1 is an overall schematic diagram of a closed evaporative cooling tower, FIG. 2 is a perspective view of a cooling coil section to which the method of supporting a cooling coil according to the present invention is applied, and FIG. 3 is a perspective view showing an assembled state of the method of the present invention.
Figures 4 and 5 are side views of the cooling coil with a narrow frame;
FIG. 6 is a perspective view showing the assembled state of the method of the present invention. 10...Horizontal bar, 11,11'...Frame material, 12...
...Open □ side, 13, 13', 13^...Survain tin coil, 14...Vertical beam, 15...
Vertically bound spacer, 16...hetsuda. Figure 1 Figure 2 Figure 3 Figure 4 Figure 5 Figure 6

Claims (1)

[Claims] 1. A plurality of horizontal bars 10 are supported by a frame member 11 on one side, and a plurality of surpaint coils 13, 13 are inserted into the gap between the horizontal bars 10 from the opening side 12 on the other side. A method for assembling and supporting a cooling coil of a closed type evaporative cooling tower, which comprises sequentially inserting the coils 13', 13'', etc., and then attaching the frame member 11' on the other side to the opening side 12. 2. The crosspiece 10 is supported by a frame member 11 on one side, and a plurality of surpaint coils 13, 13', 13''... are inserted into the gap between the horizontal crosspieces 10 from the opening side 12 on the other side on the vertical crosspieces 14. A method for assembling and supporting a cooling coil of a closed type evaporative cooling tower, which comprises sequentially inserting the coil through the opening side 12, and then attaching the frame member 11' on the other side to the open side 12. 3 A plurality of horizontal bars 10 are supported by a frame member 11 on one side, and a plurality of surpaint coils 13, 13', 13'' are inserted into the gap between the horizontal bars 10 from the opening side 12 on the other side. A method for assembling and supporting a cooling coil for a closed type evaporative cooling tower, which comprises sequentially inserting the above through a vertically woven spacer 15, and then attaching a frame member 11' on the other side to the open side 12.