JP2011137606A - Filler for gas-liquid contact and cooling tower - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a filler for gas-liquid contact, capable of efficiently trapping all of sprayed cooling water and forming wet walls of liquid films with uniform film thickness and uniform falling speed on the surfaces of sheets for gas-liquid contact constituting the filler for gas-liquid contact, having proper heat exchange efficiency and enabling reduction in the size and energy saving, and so on, and to provide a cooling tower. <P>SOLUTION: In the filler 16 for gas-liquid contact, a large number of sheets 27 for gas-liquid contact are arranged, the wet walls are formed on plate faces of the sheets 27 for gas-liquid contact by cooling water, and the temperature of the cooling water is reduced by latent heat action accompanying direct contact of the wet walls with an outside air current. In a cooling water trapping part 29, a cooling water trapping bent part having projections and recesses on the surface and back face is provided in predetermined regions, on the lower side from an upper end of each sheet 27 for gas-liquid contact, and vertically-open spaces are not provided between the projections on the surfaces and the recesses on the back faces. An unevenness surface capable of forming the wet wall with a uniform film thickness and a uniform falling speed on the surface and back face of the sheet 27 for gas-liquid contact by the cooling water is formed on the lower side from the cooling water trapping part. <P>COPYRIGHT: (C)2011,JPO&INPIT

Description

  The present invention is arranged vertically so that liquid flows down along the plate surfaces of a plurality of gas-liquid contact sheets to form a wet wall, and the liquid is obtained by heat exchange by the latent heat action accompanying direct contact between the wet wall and the external airflow. The present invention relates to a cooling tower that lowers the temperature of the gas and a gas-liquid contact filler used in the cooling tower.

  Conventionally, as this type of gas-liquid contact filler, there are those disclosed in Patent Documents 1 to 3. In the gas-liquid contact filler disclosed in Patent Document 1, in order to form a water film on the surface of the sheet by the cooling water sprayed by the watering device and flow it down, A plurality of water droplet trapping portions that are alternately projected on the front surface side and the back surface side, or protruded only on the same surface, are arranged at predetermined intervals along the width direction of the filler body, and such rows are arranged vertically. A plurality are also formed in the direction at predetermined intervals.

  Moreover, the thing disclosed by patent document 2 is the depth of a heat exchanger in the longitudinal direction of each filling board in which the sprinkling water receptacle formed by the top edge of an adjacent filling board bending | curving substantially horizontally with a predetermined pitch. The tip portions of the spray water receivers are joined to or in contact with the top edge of the adjacent filling plate or the spray water receiver.

  Further, the filler disclosed in Patent Document 3 is a filler having a structure in which every other corrugated plate formed by meandering in the direction of the horizontal line is rotated by 180 ° and overlapped, and the corrugated plate is on the back. Or it is the shape which contact | abutted partly by stomach alignment, and was the structure which eliminated the space which can see through to a perpendicular direction.

JP-A-53-58485 JP 2004-278863 A JP 59-14598 A JP 2001-59695 A

  However, the filler for gas-liquid contact disclosed in Patent Document 1 has a problem in that the sprayed water catching part is partially formed, so that the sprayed water catching part cannot catch all the sprayed water. There is also a problem that most of the cooling water falls as water droplets halfway.

  In addition, the gas-liquid contact filler disclosed in Patent Document 2 has a problem in that the sprayed water capturing part is partially formed and cannot capture the entire sprayed water, similar to the gas-liquid contact filler of Patent Document 1. There is.

  Moreover, since the gas-liquid contact filler disclosed in Patent Document 3 has no space that can be seen in the vertical direction, it captures all of the sprayed cooling water. In addition, the cooling water tends to be a collective flow along each groove of the corrugated plate, and it is difficult to form a water film on the entire sheet surface, and the thickness and the flow rate of the water film cannot be made uniform.

  The present invention has been made in view of the above-described points, and efficiently captures all of the cooling water sprayed on the gas-liquid contact filler to form the gas-liquid contact filler. Gas-liquid contact filling material capable of forming a wet film wall with uniform film thickness and uniform flow speed on the surface, good heat exchange efficiency, miniaturization, energy saving, and the like. It aims at providing the cooling tower using a material.

  In order to solve the above-described problems, the present invention provides a cooling water catcher in which a large number of gas-liquid contact sheets arranged in the vertical direction are arranged at equal intervals in the horizontal direction, and the coolant sprayed on the upper end portion is captured. Forming a wetting wall in which the cooling water captured by the cooling water capturing section flows down along the plate surface of the gas-liquid contact sheet, and by heat exchange due to the latent heat action accompanying direct contact between the wetting wall and the external airflow A coolant for gas-liquid contact that lowers the temperature of the cooling water, and the cooling water trapping part is a bent part for trapping the cooling water that has the same shape and unevenness on the back surface from the upper end of each gas-liquid contact sheet to the lower range. In addition, there is no space that can be seen in the vertical direction between the front surface convex portion of each cooling water capturing bent portion and the rear surface convex portion of the adjacent cooling water capturing bent portion, and cooling each gas-liquid contact sheet Below the water trapping part, the cooling water trapped by the cooling water trapping part is the gas-liquid contact case. Thickness on the back surface of the bets, characterized in that the flow-down speed uniform to form an uneven surface can be formed uniform wetted-wall.

  Further, the present invention provides the gas-liquid contact filler described above, wherein the gas-liquid contact sheet has the same shape at both ends in the width direction, and the outer surface is bent at a predetermined angle toward the inner surface toward the lower side. Both sides of the gas-liquid contact sheet adjacent to the both sides of the gas-liquid contact sheet by contacting the convex parts of the adjacent bent portions for introducing the external air flow An outside air flow introduction hole is formed between the portions.

  In the gas-liquid contact filler, the present invention is characterized in that the front of the outside air introduction part formed by a large number of outside air introduction holes has a honeycomb shape.

  In the gas-liquid contact filler according to the present invention, the gas-liquid contact sheet has a configuration in which the sheet is integrally formed of a plastic material.

  Further, in the gas-liquid contact material according to the present invention, when the gas-liquid contact sheet is arranged in a horizontal direction at a predetermined position of each gas-liquid contact sheet, an equal interval is provided between the gas-liquid contact sheets. Protrusions having a predetermined height dimension for maintaining are provided.

  Further, in the gas-liquid contact filler according to the present invention, a suspension hole through which a suspension pipe for suspending the gas-liquid contact sheet is inserted at a predetermined position of each gas-liquid contact sheet. It is formed.

  Further, the present invention includes a cooling tower frame, a fan is disposed at a predetermined position of the cooling tower frame, a gas-liquid contact filler at a predetermined position in the cooling tower frame, and the gas-liquid contact A watering tank is arranged on the upper part of the filler, and a cooling wall sprayed from the watering tank forms a wetting wall that flows down along the plate surface of the gas-liquid contact sheet constituting the gas-liquid contact filler, and operates the fan. In the cooling tower where the external airflow introduced into the filler for gas-liquid contact comes into direct contact with the wet wall and the temperature of the cooling water is lowered by heat exchange due to the associated latent heat action, the gas-liquid contact with the gas-liquid contact filler Any of the fillers for use is used.

  In the cooling tower, the gas-liquid contact filler is formed with a suspension hole at a predetermined position of each gas-liquid contact sheet, and the gas-liquid contact filler is used for each gas-liquid contact sheet. The suspension holes are formed at two predetermined positions, the suspension pipes are inserted into the suspension holes, the suspension pipes are fixed to the cooling tower frame, and the gas-liquid Each gas-liquid contact sheet of the contact filler is suspended from the cooling tower frame.

  Further, in the cooling tower according to the present invention, the suspension pipe is configured to be supported by the cooling tower frame at three points between the both ends and the middle, and the support structure at both ends is smaller than the inner diameter of the suspension pipe. By inserting and fixing a short pipe with an outer diameter at both ends of the suspension pipe, inserting and supporting the short pipe at both ends of the suspension pipe, and sliding the suspension pipe to either one of the both ends The suspension pipe is supported at two points, the other end and the intermediate point, and the support at one end is released. In this state, the support is released and one end of the suspension pipe is in gas-liquid contact. The gas-liquid contact sheet can be suspended and incorporated in the suspension pipe through all the suspension holes in the suspension sheet, and all of the gas-liquid contact fillers are suspended. After lowering, slide the suspension pipe to remove the short pipes at both ends of the suspension pipe. Characterized by being configured to be inserted for supporting the insertion hole provided in the support member fixed to 却塔 frame.

  According to the present invention, the cooling water capturing portion is provided with a cooling water capturing bent portion that is uneven on the back surface of the predetermined range from the upper end of each gas-liquid contact sheet, and the surface convexity of each cooling water capturing bent portion is provided. Since the portion is configured such that there is no space that can be seen in the vertical direction between the convex portions on the back surface of the adjacent cooling water capturing bent portion, all of the sprayed cooling water is supplemented by the cooling water capturing portion, and the cooling water capturing portion A wet wall with a uniform film thickness and a uniform flow velocity is formed on the back surface of the gas-liquid contact sheet below, and the latent heat action associated with the direct contact between the wet wall and the external airflow is efficiently performed. Heat exchange can be realized. As a result, the cooling tower using the gas-liquid contact filler according to the present invention can be reduced in size, resources and space, and cost can be reduced compared to the conventional cooling tower with the same cooling capacity. Become.

  In addition, if the cooling tower using the gas-liquid contact filler according to the present invention has the same size, the resistance of the external airflow is smaller than that of the conventional cooling tower. Necessary fan power is reduced, and energy saving and noise level can be reduced.

  Furthermore, in order to arrange the gas-liquid contact sheet constituting the gas-liquid contact filler in the cooling tower frame at equal intervals in the horizontal direction, the gas-liquid contact sheet is suspended from the suspension pipe, Since no adhesive is used, the gas-liquid contact sheet can be transported in a separated state and assembled without using adhesive at the installation site of the cooling tower, so the solvent in the adhesive diffuses into the air. Without deteriorating the work environment. In addition, since no adhesive is used, the cooling tower can be easily disassembled.

FIG. 1 is a diagram showing a schematic configuration of a cooling tower according to the present invention. FIG. 2 is a diagram showing a planar configuration of the gas-liquid contact filler according to the present invention. FIG. 3 is a diagram showing a cross section of FIG. 2X-X. FIG. 4 is an enlarged view of a cooling water capturing portion of the gas-liquid contact filler of FIG. FIG. 5A shows a partial appearance of the gas-liquid contact filler, and FIG. 5B shows an external air flow and a wet wall flow in the gas-liquid contact filler. FIG. 6 is a view showing a support structure of a suspension pipe for suspending a gas-liquid contact filler.

  Hereinafter, embodiments of the present invention will be described in detail. FIG. 1 is a cross-sectional view showing a schematic configuration of a cooling tower according to the present invention. The main cooling tower 10 includes a cooling tower frame 11, and a fan 13 is disposed in the upper center portion of the cooling tower frame 11. A central portion of the cooling tower frame 11 is an external airflow passage 14 through which an external airflow passes. Gas-liquid contact fillers 16 and 16 are disposed in the cooling tower frame 11 on both sides of the external airflow passage 14. Yes. Sprinkling tanks 17 and 17 are disposed above the gas-liquid contact fillers 16 and 16, respectively. A large number of watering holes are formed at the bottom of the watering tank 17.

  The cooling water 101 in the watering tank 17 is sprinkled on the top of the gas-liquid contact filler 16 through the watering hole. The sprayed cooling water 101 forms a water film on the surface of the gas-liquid contact sheet constituting the gas-liquid contact filler 16 as will be described in detail later, and flows down as indicated by an arrow A. The cooling tower frame 11 It flows into the falling water tank 19 provided at the lower end of the external airflow passage 14. The cooling water 101 in the dropped water tank 19 is supplied to the sprinkling tanks 17 and 17 through the circulation pipe 22 by the circulation pump 20, and the cooling water is circulated.

  When the motor 23 is activated, the fan 13 rotates, and the rotation of the fan 13 causes the external air to flow through the outside air inflow portion 24 of the gas-liquid contact filler 16 as indicated by the arrow B as an outside air stream. It flows into the contact filler 16 (in the space between the gas-liquid contact sheet and the gas-liquid contact sheet constituting the gas-liquid contact filler 16). As will be described in detail later, the inflowing external airflow directly contacts a wet wall made of a water film formed on the surface of the gas-liquid contact sheet, and the cooling water is cooled by the latent heat action, thereby It flows into the external airflow passage 14 through the external air outflow portion 26 of the filler 16, and is further discharged to the outside from the external airflow passage 14.

  2 is a plan view of the gas-liquid contact filler, and FIG. 3 is a cross-sectional view taken along the line XX of FIG. As shown in the figure, the gas-liquid contact filler 16 is composed of a large number of gas-liquid contact sheets 27 arranged at equal intervals in the horizontal direction, and the cooling water 101 sprayed from the water spray tank 17 is placed at the upper end. A cooling water capturing part 29 for capturing is provided. Further, a large number of gas-liquid contact sheets constituting the gas-liquid contact material 16 are integrally formed of plastic materials. The gas-liquid contact fillers 16 are suspended by two suspension pipes 30 without being bonded with an adhesive, and are arranged at equal intervals in the horizontal direction.

  As shown in FIG. 4, the cooling water catching portion 29 is an uneven portion in which each gas-liquid contact sheet 27 is formed with a convex portion 27 a having a mountain cross-section on the back surface and a convex portion 27 b having a cross-sectional mountain shape on the surface within a predetermined range from the upper end thereof. A portion A, and a convex portion 27c and a convex portion 27e having a trapezoidal cross section on the surface, and a concavo-convex portion B in which a convex portion 27d having a cross-sectional mountain shape is formed on the back surface continuously to the convex portion 27e. The top part of the surface convex part 27b of the uneven part A reaches the line l connecting the top parts of the two back surface convex parts 27a, 27a of the uneven part A of the adjacent gas-liquid contact sheet 27, and the surface convex part 27c of the uneven part B There is a gap Δd between the top portions of the back surface convex portions 27a of the concavo-convex portions A of the gas-liquid contact sheet 27 adjacent to the top portions. And the convex part 27e of the height which obstruct | occludes the clearance gap Δd is provided in the lower end part of the convex part 27c of a cross-sectional trapezoid shape. By adopting the above configuration, the cooling water capturing unit 29 has no space that can be seen in the vertical direction, so that it is possible to capture all of the cooling water sprayed on the gas-liquid contact filler 16.

  By configuring the cooling water catching portion 29 as described above, substantially all of the cooling water 101 sprayed through the water sprinkling holes at the bottom of the water sprinkling tank 17 is formed on the rear surface convex portions 27a and 27a of the concave and convex portion A, and the surface convexity. Along the uneven surface of the gas-liquid contact sheet 27 that is captured on the surface 27b, the surface convex portions 27c and 27e of the concave and convex portion B, and the rear surface convex portion 27d and formed below the cooling water capturing portion 29. As a result, a wet wall with a uniform water film thickness is formed, and it flows down at a uniform speed. The unevenness of the back surface of the gas-liquid contact sheet 27 formed below the gas-liquid contact sheet 27 is a continuous shape having a mountain-shaped cross section in FIG. 3, but the film thickness is uniform and the flow speed is uniform. The shape is not limited as long as it is an uneven surface capable of forming a wet wall.

  FIG. 5A shows the external appearance of the external air inflow portion 24 in a part of the gas-liquid contact filler 16, and FIG. 5B shows the external air inflow portion 24 and the external air outflow portion 26 of the gas-liquid contact filler 16. It is a figure which shows the flow of the wet wall formed in the back surface of the sheet | seat 27 for gas-liquid contacts with the flow of the external airflow in and a cooling water. As shown in FIG. 5 (a), the outside air inflow portion 24 of the gas-liquid contact filler 16 has a honeycomb shape on the front surface by arranging a large number of gas-liquid contact sheets 27 in a horizontal direction at predetermined intervals. ing. As shown in FIG. 5B, the outside air inlet 24 a of the outside air inflow portion 24 is inclined downward at a predetermined angle toward the back surface of the gas-liquid contact sheet 27 of the gas-liquid contact material 16. Further, the outside air outlet 26a of the outside air outflow portion 26 is inclined upward at a predetermined angle from the back surface of the gas / liquid contact sheet 27 toward the outside air passage 14 (see FIG. 1) in the cooling tower frame 11 (gas / liquid). Inclined downward at a predetermined angle toward the back surface of the contact sheet 27.

  As described above, the external airflow inlet 24a is inclined downward at a predetermined angle toward the back surface of the gas-liquid contact sheet 27, and the external airflow outlet 26a is upwardly directed toward the external airflow passage 14 in the cooling tower frame 11. By inclining at a predetermined angle, even if the wetting wall 103 formed on the back surface of the gas-liquid contact sheet 27 by the cooling water 101 flows down as shown by the arrow A, the external air flow inlet 24a and the external air flow outlet 26a are Since it inclines downward toward the back surface of the gas-liquid contact sheet 27, the cooling water of the wet wall 103 flows out from the external air flow inlet 24 a of the external air inflow portion 24 and the external air flow outlet 26 a of the external air outflow portion 26. There is no. Therefore, the cooling water 101 is not scattered around the area where the cooling tower 10 is installed to wet the surrounding area.

  Each gas-liquid contact sheet 27 of the gas-liquid contact material 16 is a suspension pipe 30 and is suspended by two suspension pipes 30 on both sides of the external airflow passage 14 in the cooling tower frame 11. Has been placed. As shown in FIG. 6, the suspension pipe 30 is supported at both ends by support members 31 and 31. The suspension pipe 30 is also supported by a suspension support member 34 at the center. The suspension support member 34 is provided with a through hole 34a through which the suspension pipe 30 passes. The suspension pipe 30 is supported by support members 31, 31 attached to the cooling tower frame 11 through the through hole 34a. It is supported. Short pipes 36 and 36 having an outer diameter slightly smaller than the inner diameter of the suspension pipe 30 are inserted and fixed to both ends of the suspension pipe 30, and the short pipes 36 and 36 are supported by the support members 31 and 31. Both ends of the suspension pipe 30 are supported by being inserted into through holes 31a and 31a provided in the pipe.

  As described above, the suspension pipe 30 is supported by the support members 31 and 31 at both ends, and further supported by the suspension support member 34 at the center, and is supported at a total of three points. The suspension pipe 30 is configured to be slidable as shown by an arrow D. For example, the short pipe 36 is slid to the left side as shown in FIG. 6 and inserted into the end of the suspension pipe 30. Even when the support member 31 is detached, the left support member 31 and the suspended support member 34 are stably supported at two points. Therefore, in this state, each gas-liquid contact sheet 27 is suspended by passing the suspension pipe 30 through two suspension holes provided at predetermined positions of each gas-liquid contact sheet 27. The pipe 30 can be assembled in a suspended state, and the assembling work is facilitated. The suspension pipe 30 is fixed to the cooling tower frame 11 via support members 31 and 31.

  As shown in FIG. 5A, a protrusion 27f having a predetermined height is provided at a predetermined position on the surface of each gas-liquid contact sheet 27 as shown in FIG. The distance between the gas-liquid contact sheet 27 and the gas-liquid contact sheet 27 suspended from the suspension pipe 30 is maintained at the height of the gas-liquid contact sheet 27f.

  The embodiments of the present invention have been described above. However, the present invention is not limited to the above-described embodiments, and various modifications can be made within the scope of the technical idea described in the claims and the specification and drawings. Can be modified. Note that any shape or structure not directly described in the specification and drawings is within the technical scope of the present invention as long as the effects of the present invention are achieved.

  The present invention is provided with a cooling water capturing bent portion that unevens the cooling water capturing portion on the back surface of a predetermined range from the upper end of each gas-liquid contact sheet, and the surface convex portion of each cooling water capturing bent portion is Since there is no space that can be seen in the vertical direction between the convex portions on the back side of the adjacent cooling water capturing bent portion, all of the sprayed cooling water is captured by the cooling water capturing portion, and is downward from the cooling water capturing portion. A wet wall with a uniform film thickness and a uniform flow speed is formed on the back surface of the gas-liquid contact sheet, and the latent heat action associated with the direct contact between the wet wall and the external airflow is efficiently performed. Exchange can be realized. Therefore, the cooling tower using the gas-liquid contact filler according to the present invention can be reduced in size, resources and space, and cost can be reduced compared with the conventional cooling tower having the same cooling capacity. It can be used as a filler for gas-liquid contact of a cooling tower.

DESCRIPTION OF SYMBOLS 10 Cooling tower 11 Cooling tower frame 13 Fan 14 External airflow path 16 Filler for gas-liquid contact 17 Sprinkling tank 19 Dropped water tank 20 Circulation pump 22 Circulation piping 23 Motor 24 Outside air inflow part 26 Outside air outflow part 27 Gas-liquid contact sheet DESCRIPTION OF SYMBOLS 29 Cooling water capture part 30 Suspension pipe 31 Support member 33 Bracket 34 Suspension support member 36 Short pipe 101 Cooling water 102 Heat source 103 Wet wall

Claims (9)

A large number of gas-liquid contact sheets arranged in the vertical direction are arranged at equal intervals in the horizontal direction, and provided with a cooling water capturing unit that captures the cooling water sprayed on the upper end, and the cooling captured by the cooling water capturing unit Gas-liquid contact filling in which water forms a wet wall that flows down along the plate surface of the gas-liquid contact sheet, and the temperature of the cooling water is lowered by heat exchange by the latent heat action associated with direct contact between the wet wall and the external airflow. Material,
The cooling water capturing portion is provided with a cooling water capturing bent portion which is uneven on the back surface of a predetermined range from the upper end of each gas-liquid contact sheet, and adjacent to the surface convex portion of each cooling water capturing bent portion. Between the back surface convex part of the bent part for cooling water capture to be configured with no space that can be seen in the vertical direction,
Below the cooling water capturing part of each gas-liquid contact sheet, the cooling water captured by the cooling water capturing part is wet on the back surface of the gas-liquid contact sheet with a uniform film thickness and a uniform flow rate. A filling material for gas-liquid contact, characterized in that an uneven surface capable of forming a wall is formed. In the gas-liquid contact filler according to claim 1,
The gas-liquid contact sheet has the same shape at both ends in the width direction and is provided with concave and convex external airflow introduction bent portions inclined at a predetermined angle inward and downward on the back surface. The outer air current introduction hole is formed between the gas liquid contact sheet both sides and the adjacent gas liquid contact sheet both sides by contacting the convex portion of the adjacent external air current introduction bent portion A filler for gas-liquid contact, characterized in that In the gas-liquid contact filler according to claim 1 or 2,
A gas-liquid contact filler characterized in that a front surface of an outside air introduction portion formed by a large number of outside air introduction holes has a honeycomb shape. In the gas-liquid contact filler according to any one of claims 1 to 3,
The gas-liquid contact material is a structure in which the gas-liquid contact sheet is integrally formed of a plastic material. In the gas-liquid contact filler according to any one of claims 1 to 4,
When the gas-liquid contact sheets are arranged in a horizontal direction, the predetermined positions of the gas-liquid contact sheets have predetermined height dimensions for maintaining the equal intervals between the gas-liquid contact sheets. A filler for gas-liquid contact, which is provided with a protruding portion. In the gas-liquid contact filler according to any one of claims 1 to 5,
Filling for gas-liquid contact, wherein a hanging hole through which a hanging pipe for suspending the gas-liquid contacting sheet is inserted is formed at a predetermined position of each gas-liquid contacting sheet Wood. A cooling tower frame is provided, a fan is disposed at a predetermined position of the cooling tower frame, a gas-liquid contact filler at a predetermined position in the cooling tower frame, and a water spray tank above the gas-liquid contact filler The cooling water sprayed from the water spray tank forms a wetting wall that flows down along the plate surface of the gas-liquid contact sheet constituting the gas-liquid contact filler, and the gas-liquid is operated by operating the fan. In the cooling tower in which the external air flow introduced into the contact filler is in direct contact with the wet wall and the temperature of the cooling water is lowered by heat exchange by the accompanying latent heat action,
A cooling tower, wherein the gas-liquid contact filler according to any one of claims 1 to 6 is used as the gas-liquid contact filler. The cooling tower according to claim 7,
Using the gas-liquid contact filler according to claim 6 for the gas-liquid contact filler,
Each gas-liquid contact sheet has the suspension holes formed at two predetermined positions, the suspension pipes are inserted into the suspension holes, and the suspension pipes are connected to the suspension pipes. A cooling tower, wherein the gas-liquid contact sheet of the gas-liquid contact filler is fixed to a cooling tower frame and is suspended from the cooling tower frame. The cooling tower according to claim 7,
The suspension pipe is configured to be supported by the cooling tower frame at three points between the both ends and the middle, and the support structure at both ends suspends a short pipe having an outer diameter smaller than the inner diameter of the suspension pipe. The both ends of the pipe for lowering are fixed and the suspension pipe is slid to either one of the both ends so that the suspension pipe is supported at two points, the other end and the middle point. In this state, the support is released, and a suspension hole of the gas-liquid contact sheet is inserted into one end of the suspension pipe, and the gas-liquid contact sheet is inserted into the suspension pipe. After suspending all the gas-liquid contact fillers of the gas-liquid contact filler, the suspension pipe is slid and the short pipes at both ends of the suspension pipe are suspended. The pipe is supported by being inserted into an insertion hole provided in a support member fixed to the cooling tower frame. Cooling tower, characterized in that the configuration was.

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