JP3657150B2 - Support structure for cooling tower filler - Google Patents

Support structure for cooling tower filler Download PDF

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Publication number
JP3657150B2
JP3657150B2 JP23429899A JP23429899A JP3657150B2 JP 3657150 B2 JP3657150 B2 JP 3657150B2 JP 23429899 A JP23429899 A JP 23429899A JP 23429899 A JP23429899 A JP 23429899A JP 3657150 B2 JP3657150 B2 JP 3657150B2
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Japan
Prior art keywords
filler
sheet
hole
cooling tower
sheets
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JP23429899A
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JP2001059695A (en
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充 水沢
真昭 橋本
重好 高野
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Shinko Pantec Co Ltd
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Kobelco Eco Solutions Co Ltd
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Description

【0001】
【発明の属する技術分野】
本発明は、工場設備、空調設備等から排出される温水を高効率で冷却する冷却塔の充填材の支持構造に関し、特に吊下式充填材に関するものである。
【0002】
【従来の技術】
従来より、工場設備、ビル等の空調設備等から排出される温水を冷却して循環使用するために使用される冷却塔には、温水の冷却方式の点から、温水と冷却用気流との流れ方向が直角である、いわゆる「クロスフロー方式」のものと、温水と冷却用気流とが対向する、いわゆる「カウンターフロー方式」のものとがあり、本発明の充填材の支持構造はいずれの方式の冷却塔にも適用可能である。以下には、本発明の理解を容易にするため、クロスフロー方式冷却塔について、簡単に説明する。
【0003】
クロスフロー方式冷却塔としては、図1に示す構造のものが一般的である。図1において、通風空間1の両側に複数の充填材シートから構成される充填材ブロック2、2が設置され、通風空間1の上方には冷却ファン3が取り付けられ、各充填材ブロック2の上方には温水分配槽4が設けられ、温水分配槽4には温水供給管5から散水箱6を経て温水が供給されている。各温水分配槽4の底面には、多数のノズル7が取り付けられており、このノズル7を経て充填材ブロック2に温水が供給され、供給された温水は充填材ブロック2中を流下する。一方、冷却ファン3によって充填材ブロック2側方のルーバー8から充填材ブロック2中を経て通風空間1内に向かう空気の流れFが生じ、この気流Fによって充填材ブロック2中を流下する温水が冷却される。そして、温水と熱交換した後の空気はエリミネーター9で水滴を分離された後、外部へ放出される。このように、クロスフロー方式冷却塔では、流下する温水は横方向から供給された気流によって冷却される。かくして、充填材ブロック2中を通過した温水は、冷水となって冷水槽10に貯留される。
【0004】
ところで、充填材ブロックを設計する場合には、冷却効果を増大するための工夫が必要であり、最大表面積を得るように充填材シートの表面に薄いフィルム状で温水を飛散させる手段と、水の重力落下流の速度を遅くし冷却空気に最大量の水が接するようにする手段と、余分な空気圧力の損失が生じることなくしかも接触面積を確保するために乱流状の空気流を生じさせる手段とを備えることが好ましい。これらの手段を達成するために、充填材ブロックを構成する充填材シートの各表面は、利用可能表面を有効に増大し且つ水の流下フィルムの流速を減少するように山形模様が一面に施されることが多い。このように、冷却塔の充填材シートは常に水と接触し、複雑な加工が施され、しかも、充填材シートの数は多いので、耐錆性、加工性およびコスト面を考慮して、充填材シートは薄肉(例えば、0.4〜0.5mm厚)の合成樹脂で射出成形されることが多い。
【0005】
さらに、充填材シートに基本的に要求される条件として、流下する水と冷却空気との接触空間を確保するために、隣接する各充填材シートの間に一定の間隔を保持するためのスペーサー(突起物)が必要である。
【0006】
ところが、従来の冷却塔の充填材の支持構造としては、多数の充填材ブロックを積層する場合、下段の充填材ブロック上に上段の充填材ブロックを積み重ねる据置型が採用されていたので、充填材シートには自重による圧縮荷重が負荷される。そこで、自重による座屈を防止するため、充填材シートの剛性を増す手段として充填材シートに多数の突起物が設けられていた。そして、多数の充填材シートを一体に保持するため、充填材シートには突起物と係合可能な凹部も同時に設けられ、一方の充填材シートの突起物に接着剤を塗布し、隣接する他方の充填材シートの凹部に接着剤を塗布した突起物を嵌合するという、接着嵌合方式が採用されていた。特に、合成樹脂製シートの場合、強度的に十分ではないため、剛性を極力増して自重による座屈を防止するという目的を達成するため、図6に示すように、上段と下段の充填材ブロック31、32を構成する充填材シート33には、極めて多数の突起物34が設けられていた。
【0007】
【発明が解決しようとする課題】
しかし、充填材シートの表面に多数の突起物があれば、空気の圧力損失が大きくなるので冷却能力が低下してしまう。そのため、所定の冷却効果を得るためには、冷却ファンの動力を大きくする必要があり、運転コストの増大を引き起こしていた。
【0008】
また、据置型充填材ブロックでは、充填材シートに付着した水や空気中の不純物を除去しようとしても、隣接する各充填材シートが接着剤で接着されているので、組み立てた状態では清掃ができない。しかし、不純物の付着量が多くなると所定の冷却効果を得ることができなくなってしまうので、新品の充填材ブロックと交換する必要があった。
【0009】
本発明は従来の技術の有するこのような問題点に鑑みてなされたものであって、その目的は、清掃が簡単で、冷却能力が高く、低コストの冷却塔の充填材の支持構造を提供することにある。
【0010】
【課題を解決するための手段】
上記目的を達成するために本発明は、充填材シートを吊り下げ部材で吊り下げる吊り下げ方式を採用したので、充填材シートに負荷される荷重は引っ張り力になる。据置型の従来の充填材シートに負荷されていた荷重は圧縮力であり、一般的に合成樹脂製品の引っ張り強さは圧縮強さに比べて大きいので、強度を向上するために突起物を増やす必要がなく、充填材シートに設ける突起物としては、隣接する各充填材シートの間隔を保持するために必要最小数の突起物だけでよくなる。そのため、全体の突起物の数が大幅に少なくなり、空気の圧力損失を減少させることができるので、抵抗の低下分だけ冷却塔1基当たりの処理水量の増加が可能になる。1基当たりの処理水量の増加に伴い、冷却塔のコンパクトが可能になる。また、圧力損失が小さくなるので、冷却ファンの動力が小さくてすみ、運転コストが抑制される。さらに、充填材シートは吊り下げ部材に吊り下げられているので、充填材シートの取り付け・取り外しが容易であり、充填材シートに付着した異物の除去が簡単にできる。
【0011】
【発明の実施の形態】
すなわち、本発明の要旨は、複数の充填材シートから構成される充填材ブロック上方に温水を供給する温水分配槽を備え、該充填材ブロック下方に冷水槽を備え、充填材ブロック中を流下する温水を気流によって冷却する冷却塔の充填材の支持構造であって、各充填材シートの上部に貫通孔を設け、複数の充填材シートの端面を揃えて並列して配し、充填材シートの上部に設けた貫通孔に吊り下げ部材を挿通し、該吊り下げ部材挿通用の開口と鉤形部を有する吊り下げ金具の該吊り下げ部材挿通開口に上記吊り下げ部材を挿通し、吊り下げ金具の鉤形部を冷却塔の構造部材に係合することを特徴とする冷却塔の充填材の支持構造にある。
【0012】
以上のように構成される本発明によれば、充填材シートを吊り下げ部材に吊り下げる非接着吊り下げ構造であるから、次のような作用を奏する
(1)強度が向上する。
【0013】
充填材シートに負荷される荷重は引っ張り力になる。薄物材は一般的に圧縮強さに比べて引っ張り強さは大きく、特に、充填材シートを合成樹脂製とする場合に、その傾向は強くなる。
(2)処理水量が増加し、省スペースが可能になる。
【0014】
充填材シートに設ける突起物は、隣接する各充填材シートの間隔を保持するために必要最小数の突起物だけでよく、剛性を向上して強度アップを図るための突起物は不要になり、充填材シートの全体の突起物の数を従来の据置型のものより大幅に少なくすることができる。突起物の数が少なくなることにより、圧力損失が小さくなり(抵抗が低下し)、冷却塔1基当たりの処理水量の増加が可能になる。1基当たりの処理水量が増加すれば、冷却塔のコンパクト化が可能になり、省スペース化を図ることができる。
(3)清掃が簡単で、寿命が伸びる。
【0015】
充填材シートに異物が付着した場合、吊り下げ金具の鉤形部を冷却塔の構造部材から離脱し、吊り下げ部材が充填材ブロックを貫通した状態で冷却塔から取り外す。そして、充填材シートの貫通孔から吊り下げ部材を引き抜きば、充填材シート1枚づつに分離することができるので、充填材シートの清掃が容易になり、その結果、充填材シートの寿命を延長することができる。
(4)省エネルギーが可能である。
【0016】
充填材シートの熱交換性能を低下させずに圧力損失を小さくすることができるので、冷却ファンの動力が低くなり、運転コストを低減することができる。
【0017】
また、複数の充填材シートの端面を揃えずに、水平断面方向における充填材シートの端面が規則的あるいは不規則にずれるようにすれば、充填材シートの入口部の空気通過面積が増加するので、風速が低下し、圧力損失を小さくすることができる。具体的には、以下のような手段を採ることができる。
【0018】
すなわち、一般的に充填材シートは平行四辺形(長方形および正方形を含む)の形状のものが用いられており、この平行四辺形の充填材シートに設ける貫通孔の形状を工夫することにより、圧力損失を低下させることが可能になる。
【0019】
すなわち、充填材シートの形状が平行四辺形であって、上部に設ける貫通孔の形状によって充填材シートがAシートとBシートの2種類から構成され、Aシートの上部には吊り下げ部材が上下に移動可能な長孔状の貫通孔をシートの上下方向端面に対して交差する方向に設け、Bシートの上部に設ける貫通孔の下端は上記長孔状の貫通孔の下端と同一水平面に位置するように設け、充填材ブロックはAシートとBシートを交互に配置したものから構成されることにより、圧力損失を低減することが可能になる。
【0020】
というのは、図5(c)に示すように、本発明に従って、長孔状の貫通孔を有するAシート(23a)と通常の貫通孔を有するBシート(23b)を交互に配置することにより、孔の長さの差に相当する分だけAシート(23a)の上端面および下端面はBシート(23b)のそれより下方にずれ、しかも、充填材シートの形状は平行四辺形であるから、同一高さの横断面(X−X矢視方向)で見た場合、図5(d)に示すように、一方の側S1 ではAシート(23a)がBシート(23b)より外方にずれ、他方の側S2 ではBシート(23b)がAシート(23a)より外方にずれる。その結果、図5(e)に示すように、従来の充填材シートの空気吸い込み側の間隔をdとすれば、本発明の場合、図5(f)に示すように、充填材シートの空気吸い込み側の間隔は2dとなる。このように、本発明によれば、従来の充填材シートに比べて入口部の空気通過面積が増加するので、風速が低下し、その結果、圧力損失が小さくなるのである。
【0021】
【実施例】
以下に本発明の実施例を図面を参照しながら説明する。図2(a)は本発明に係る冷却塔の充填材の支持構造の一実施例を示す側面図であり、図2(a)において、充填材ブロック2a、2b、2cを構成する硬質塩化ビニル樹脂製の充填材シート(図3の番号23参照)の上部に貫通孔(図3の番号25参照)を設け、複数の充填材シートの端面を揃えて並列して配し(図3参照)、充填材シートの上部に設けた貫通孔に吊り下げパイプ(吊り下げ部材)11を挿通し、図2(b)に示すようなパイプ挿通開口12と鉤形部13を有する吊り下げ金具14のパイプ挿通開口12に吊り下げパイプ11を挿通し、吊り下げ金具14の鉤形部13を冷却塔の梁15に取り付けたピン16に係合する構造である。吊り下げ金具としては、図2(b)に示すもの以外に、図2(c)に示すように、長孔状のパイプ挿通開口17を有し、一方の端部側18を他方の端部側19より少し幅狭に形成し、幅狭の端部側18を端部側19に設けた孔(図2(d)の番号20)に挿通して折り曲げて鉤形を形成し、この鉤形部21をピン16に係合するような構造のものも採用できる。また、吊り下げ金具はワイヤー状のものも採用できる。
【0022】
図3は、本発明に係る冷却塔の充填材の支持構造の実施例を拡大して示す斜視図である。22は隣接する充填材シート23、23の間隔を保持するための突起物であり、24は突起物22に係合可能な凹部である。本発明の吊り下げ構造を維持するために必要なものではないが、空気流による充填材シートのバタツキを防止するため、充填材シート23の下部の貫通孔25aにもパイプ11を挿通することが好ましい。
【0023】
本発明によれば、充填材シートに負荷される荷重は引っ張り力であり、従来の据置方式による圧縮荷重の場合に比べて充填材シートの強度は約3倍に向上する。そのため、充填材シートの剛性を高めて強度向上を図るために突起物を増やす必要がなく、突起物全体の数を従来の据置方式の場合に比べて約50%少なくすることができる。その結果、圧力損失が小さくなり、上記したような効果が期待できる。
【0024】
また、吊り下げ金具14の鉤形部13を冷却塔の梁15に取り付けたピン16から離脱し、吊り下げパイプ11が充填材ブロックを貫通した状態で冷却塔から取り外し、充填材シート23の貫通孔25から吊り下げパイプ11を引き抜きば、一枚毎の充填材シートに分離することができるので、充填材シートの清掃が容易であり、その結果、充填材シートの寿命を延長することができる。
【0025】
図4は図2(a)を右方から見た図である。
【0026】
図5は、上部に設ける貫通孔の形状によって充填材シートがAシートとBシートの2種類から構成される場合を示す図で、図5(a)に示すように、Aシート23aの上部および下部には吊り下げパイプ11が上下に移動可能な長孔状の貫通孔26をシートの上下方向端面Eに対して交差する方向(本実施例では鉛直方向)に形成し、図5(b)に示すように、Bシート23bの上部および下部に設ける貫通孔27は吊り下げパイプ11の直径より僅かに大きく且つ貫通孔27の下端は長孔状の貫通孔26の下端と同一水平面に位置するように設け、図5(c)に示すように、Aシート23aとBシート23bを交互に配置すると、Aシート23aの上端面と下端面は、Bシート23bのそれより貫通孔の長さの差に相当する分だけ下方にずれ、その結果、図5(C)のXーX矢視断面を示す図5(d)に明らかなように、一方の側S1 ではAシート23aはBシート23bより外方にずれ、他方の側S2 ではBシート23bはAシート23aより外方にずれる。その結果、図5(e)に示すように、従来の充填材シートの空気吸い込み側の間隔をdとすれば、本発明の場合、図5(f)に示すように、充填材シートの空気吸い込み側の間隔は2dとなる。なお、長孔状の貫通孔26は充填材シートの上下方向端面Eに対して交差する方向に設ければよく、鉛直方向以外に右下がり方向あるいは左下がり方向に設けることもできる。
【0027】
クロスフロー方式冷却塔の充填材は、高さ方向に複数段積層されることが多く、充填材ブロック内の空気流れにより温水が下流側に引き込まれる傾向にあるため、充填材ブロック2a、2b、2cは図2(a)に示すように、上位側に比べて下位側が内方に向かうように傾斜させてある。そのため、充填材シートを流下する水は、充填材シートの空気吸い込み側端面に集まりやすく、図5(e)に示すように、充填材シートの空気吸い込み側に集水部28が形成されやすくなる。この集水部は空気流れの妨げとなる。その上、空気吸い込み側の間隔が狭ければ、圧力損失は一層大きくなる。そこで、本発明に従って、図5(f)に示すように、入口部の空気通過面積が図5(e)の場合より増加すれば、風速が低下し、その結果、圧力損失が小さくなり、上記したような効果を期待することができる。
【0028】
【発明の効果】
本発明は上記のとおり構成されているので、次の効果を奏する。
(1)充填材シートを非接着吊り下げ方式で支持することにより、強度が向上するので、充填材シートに設ける突起は、隣接する各充填材シートの間隔を保持するために必要最小数の突起物だけでよく、充填材シートの全体の突起物の数を従来の据置型のものより大幅に少なくすることができる。その結果、圧力損失が小さくなり(抵抗が低下し)、冷却塔1基当たりの処理水量の増加が可能になる。1基当たりの処理水量が増加することによって、冷却塔のコンパクト化が可能になり、省スペース化を図ることができる。
【0029】
また、吊り下げ金具の鉤形部を冷却塔の構造部材から離脱し、吊り下げ部材を充填材シートの貫通孔から引き抜きば、一枚毎の充填材シートに分離することができるので、充填材シートの清掃が容易になり、その結果、充填材シートの寿命を延長することができる。
【0030】
さらに、充填材シートの熱交換性能を低下させずに圧力損失を小さくすることができるので、冷却ファンの動力が低くなり、運転コストを低減することができる。
(2)特に、複数の充填材シートの端面を揃えずに、水平断面方向における充填材シートの端面が規則的にずれるように構成されており、充填材シートの入口部の空気通過面積が増加するので、さらに圧力損失の低下が可能になり、大幅な処理水量の増加と、一層の省スペース化とコスト低減が可能となる。
【図面の簡単な説明】
【図1】クロスフロー方式冷却塔の断面図である。
【図2】図2(a)は本発明の支持構造により冷却塔の充填材を支持する一例を示す側面図であり、図2(b)は吊り下げ金具の一例を示す側面図、図2(c)は別の吊り下げ金具で吊り下げパイプを吊り下げる一例を示す図、図2(d)は図2(c)の吊り下げ金具の一部を示す平面図である。
【図3】本発明の支持構造により冷却塔の充填材を支持する一例を示す斜視図である。
【図4】図2(a)を右方から見た図である。
【図5】図5(a)は充填材シートの一例を示す正面図、図5(b)は充填材シートの別の例を示す正面図、図5(c)は図5(a)と図5(b)の充填材シートを交互に配置した状態を示す斜視図、図5(d)は図5(c)のX−X矢視断面図、図5(e)は従来の充填材シートの空気吸い込み側を示す図、図5(f)は本発明の充填材シートの空気吸い込み側を示す図である。
【図6】従来の据置型充填材シートの一例を示す斜視図である。
【符号の説明】
2、2a、2b、2c…充填材ブロック
3…冷却ファン
4…温水分配槽
10…冷水槽
11…吊り下げパイプ
12、17…パイプ挿通開口
13…鉤形部
14…吊り下げ金具
15…梁
16…ピン
22、34…突起物
23…充填材シート
23a…Aシート
23b…Bシート
24…凹部
25、26、27…貫通孔
[0001]
BACKGROUND OF THE INVENTION
The present invention relates to a support structure for a filler in a cooling tower that cools hot water discharged from factory equipment, air conditioning equipment, etc. with high efficiency, and more particularly to a suspended filler.
[0002]
[Prior art]
Conventionally, cooling towers used to cool and circulate hot water discharged from factory equipment and air conditioning equipment such as buildings have a flow of hot water and cooling airflow in terms of the cooling method of hot water. There is a so-called “cross flow method” that is perpendicular to the direction, and a so-called “counter flow method” in which hot water and cooling airflow face each other, and the support structure for the filler of the present invention is any method. It is also applicable to other cooling towers. Below, in order to make an understanding of this invention easy, a crossflow type cooling tower is demonstrated easily.
[0003]
As a cross flow type cooling tower, one having a structure shown in FIG. 1 is generally used. In FIG. 1, filler blocks 2 and 2 made of a plurality of filler sheets are installed on both sides of the ventilation space 1, and a cooling fan 3 is attached above the ventilation space 1, above each filler block 2. Is provided with a hot water distribution tank 4, and hot water is supplied to the hot water distribution tank 4 from a hot water supply pipe 5 through a watering box 6. A large number of nozzles 7 are attached to the bottom surface of each hot water distribution tank 4, and hot water is supplied to the filler block 2 through the nozzles 7, and the supplied hot water flows down in the filler block 2. On the other hand, the cooling fan 3 generates an air flow F from the louver 8 on the side of the filler block 2 through the filler block 2 into the ventilation space 1, and the hot water flowing down in the filler block 2 is caused by this air flow F. To be cooled. And the air after heat-exchange with warm water is discharged | emitted outside after a water drop is isolate | separated by the eliminator 9. FIG. Thus, in the cross flow type cooling tower, the hot water flowing down is cooled by the airflow supplied from the lateral direction. Thus, the hot water that has passed through the filler block 2 becomes cold water and is stored in the cold water tank 10.
[0004]
By the way, when designing the filler block, a device for increasing the cooling effect is required. Means for scattering hot water in a thin film on the surface of the filler sheet so as to obtain the maximum surface area; A means of slowing down the gravity drop flow so that the maximum amount of water is in contact with the cooling air, and generating a turbulent air flow to ensure a contact area without loss of excess air pressure Means. In order to achieve these means, each surface of the filler sheet constituting the filler block is provided with a chevron pattern on one side so as to effectively increase the available surface and decrease the flow rate of the falling film of water. Often. In this way, the cooling tower filler sheet is always in contact with water and subjected to complicated processing, and the number of filler sheets is large, so the rust resistance, workability and cost are taken into account for filling. The material sheet is often injection-molded with a thin-walled (for example, 0.4 to 0.5 mm thick) synthetic resin.
[0005]
Furthermore, as a condition basically required for the filler sheet, in order to ensure a contact space between the flowing water and the cooling air, a spacer (for maintaining a certain interval between the adjacent filler sheets ( Projection).
[0006]
However, as a conventional support structure for the filler of the cooling tower, when a large number of filler blocks are stacked, a stationary type in which the upper filler block is stacked on the lower filler block has been adopted. A compressive load due to its own weight is applied to the seat. Therefore, in order to prevent buckling due to its own weight, a large number of protrusions are provided on the filler sheet as means for increasing the rigidity of the filler sheet. Further, in order to hold a large number of filler sheets integrally, the filler sheet is also provided with a recess that can be engaged with the protrusion, and an adhesive is applied to the protrusion of one filler sheet, and the other adjacent The adhesive fitting method of fitting the protrusion which apply | coated the adhesive agent to the recessed part of this filler material sheet | seat was employ | adopted. In particular, in the case of a synthetic resin sheet, since the strength is not sufficient, in order to achieve the purpose of increasing the rigidity as much as possible and preventing buckling due to its own weight, as shown in FIG. 6, the upper and lower filler blocks A very large number of protrusions 34 were provided on the filler sheet 33 constituting 31 and 32.
[0007]
[Problems to be solved by the invention]
However, if there are a large number of protrusions on the surface of the filler sheet, the pressure loss of air becomes large, so that the cooling capacity is lowered. Therefore, in order to obtain a predetermined cooling effect, it is necessary to increase the power of the cooling fan, which causes an increase in operating cost.
[0008]
In addition, in the stationary filler block, even when trying to remove impurities in water and air adhering to the filler sheet, each adjacent filler sheet is bonded with an adhesive, so that it cannot be cleaned in the assembled state. . However, since the predetermined cooling effect cannot be obtained if the amount of adhered impurities increases, it has been necessary to replace it with a new filler block.
[0009]
The present invention has been made in view of the above-described problems of the prior art, and an object of the present invention is to provide a cooling tower packing support structure that is easy to clean, has a high cooling capacity, and is low in cost. There is to do.
[0010]
[Means for Solving the Problems]
In order to achieve the above object, the present invention employs a suspension method in which the filler sheet is suspended by a suspension member, so that the load applied to the filler sheet becomes a tensile force. The load applied to the stationary type conventional filler sheet is compressive force, and since the tensile strength of synthetic resin products is generally larger than the compressive strength, the number of protrusions is increased to improve the strength. There is no need, and the protrusions provided on the filler sheet need only be the minimum number of protrusions necessary to maintain the spacing between adjacent filler sheets. As a result, the total number of protrusions can be significantly reduced and the pressure loss of air can be reduced, so that the amount of treated water per cooling tower can be increased by the amount of the decrease in resistance. With an increase in the amount of treated water per unit, the cooling tower can be made compact. Further, since the pressure loss is reduced, the power of the cooling fan can be reduced, and the operation cost is suppressed. Further, since the filler sheet is suspended from the suspension member, it is easy to attach and detach the filler sheet, and it is possible to easily remove foreign substances adhering to the filler sheet.
[0011]
DETAILED DESCRIPTION OF THE INVENTION
That is, the gist of the present invention includes a warm water distribution tank that supplies warm water above a filler block composed of a plurality of filler sheets, a cold water tank below the filler block, and flows down in the filler block. It is a support structure for a filler in a cooling tower that cools hot water by an air flow, and is provided with a through hole at the top of each filler sheet, arranged in parallel with the end faces of a plurality of filler sheets, A suspension member is inserted into a through hole provided in the upper portion, and the suspension member is inserted into the suspension member insertion opening of the suspension bracket having an opening for inserting the suspension member and a hook-shaped portion. A cooling tower packing support structure characterized in that a bowl-shaped portion of the cooling tower is engaged with a structural member of the cooling tower.
[0012]
According to this invention comprised as mentioned above, since it is a non-adhesion hanging structure which suspends a filler material sheet to a suspension member, there exists the following effect | action (1) Strength improves.
[0013]
The load applied to the filler sheet is a tensile force. A thin material generally has a higher tensile strength than a compressive strength, and this tendency is particularly strong when the filler sheet is made of a synthetic resin.
(2) The amount of treated water increases and space saving becomes possible.
[0014]
The protrusions provided on the filler sheet need only be the minimum number of protrusions necessary to maintain the interval between the adjacent filler sheets, and the protrusions for improving the rigidity and increasing the strength become unnecessary. The total number of protrusions of the filler sheet can be significantly reduced compared to the conventional stationary type. By reducing the number of protrusions, pressure loss is reduced (resistance is reduced), and the amount of treated water per cooling tower can be increased. If the amount of treated water per unit increases, the cooling tower can be made compact, and space can be saved.
(3) Easy cleaning and longer life.
[0015]
When a foreign substance adheres to the filler sheet, the saddle-shaped portion of the hanging metal fitting is detached from the structural member of the cooling tower, and is removed from the cooling tower with the hanging member penetrating the filler block. Then, if the suspension member is pulled out from the through hole of the filler sheet, the filler sheet can be separated one by one, which facilitates cleaning of the filler sheet and, as a result, extends the life of the filler sheet. can do.
(4) Energy saving is possible.
[0016]
Since the pressure loss can be reduced without reducing the heat exchange performance of the filler sheet, the power of the cooling fan is reduced, and the operating cost can be reduced.
[0017]
Also, if the end faces of the filler sheets in the horizontal cross-sectional direction are shifted regularly or irregularly without aligning the end faces of the plurality of filler sheets, the air passage area at the inlet portion of the filler sheets increases. The wind speed is reduced and the pressure loss can be reduced. Specifically, the following means can be taken.
[0018]
That is, in general, the filler sheet has a shape of a parallelogram (including a rectangle and a square). By devising the shape of the through hole provided in the parallelogram filler sheet, the pressure is reduced. Loss can be reduced.
[0019]
That is, the shape of the filler sheet is a parallelogram, and the shape of the through-hole provided in the upper part comprises two types of filler sheets, the A sheet and the B sheet. The lower end of the through hole provided in the upper part of the B sheet is located on the same horizontal plane as the lower end of the long hole through hole. Thus, the pressure loss can be reduced by forming the filler block by alternately arranging the A sheet and the B sheet.
[0020]
As shown in FIG. 5 (c), according to the present invention, by alternately arranging the A sheet (23a) having a long hole-like through hole and the B sheet (23b) having a normal through hole. The upper end surface and the lower end surface of the A sheet (23a) are shifted downward from that of the B sheet (23b) by an amount corresponding to the difference in the length of the holes, and the shape of the filler sheet is a parallelogram. When viewed in the same height cross section (in the direction of arrows X-X), as shown in FIG. 5 (d), the A sheet (23a) is outward from the B sheet (23b) on one side S1. the displacement, the other side S 2 B sheet (23b) is displaced outward from a sheet (23a). As a result, as shown in FIG. 5 (e), if the distance on the air suction side of the conventional filler sheet is d, in the present invention, as shown in FIG. The interval on the suction side is 2d. As described above, according to the present invention, the air passage area at the inlet is increased as compared with the conventional filler sheet, so that the wind speed is reduced, and as a result, the pressure loss is reduced.
[0021]
【Example】
Embodiments of the present invention will be described below with reference to the drawings. FIG. 2 (a) is a side view showing an embodiment of the support structure for the cooling tower filler according to the present invention. In FIG. 2 (a), the hard vinyl chloride constituting the filler blocks 2a, 2b and 2c is shown. A through hole (see number 25 in FIG. 3) is provided in the upper part of the resin filler sheet (see number 23 in FIG. 3), and the end faces of the plurality of filler sheets are aligned and arranged in parallel (see FIG. 3). A hanging pipe (hanging member) 11 is inserted into a through hole provided in the upper part of the filler sheet, and a hanging metal fitting 14 having a pipe insertion opening 12 and a hook-shaped portion 13 as shown in FIG. The suspension pipe 11 is inserted into the pipe insertion opening 12, and the hook-shaped portion 13 of the suspension fitting 14 is engaged with the pin 16 attached to the beam 15 of the cooling tower. As shown in FIG. 2 (c), the hanging metal fitting has a long hole-like pipe insertion opening 17 as shown in FIG. 2 (b), and one end side 18 is connected to the other end. It is formed slightly narrower than the side 19, and the narrow end 18 is inserted into a hole (numeral 20 in FIG. 2 (d)) provided in the end 19 and bent to form a bowl. A structure in which the shape portion 21 is engaged with the pin 16 can also be adopted. A hanging metal fitting can also be used.
[0022]
FIG. 3 is an enlarged perspective view showing an embodiment of the support structure for the cooling tower filler according to the present invention. Reference numeral 22 denotes a protrusion for maintaining the interval between the adjacent filler sheets 23, 23, and reference numeral 24 denotes a recess that can be engaged with the protrusion 22. Although not necessary for maintaining the suspension structure of the present invention, in order to prevent the filler sheet from fluttering due to airflow, the pipe 11 may be inserted into the lower through-hole 25a of the filler sheet 23. preferable.
[0023]
According to the present invention, the load applied to the filler sheet is a tensile force, and the strength of the filler sheet is improved about three times as compared with the case of a compressive load by a conventional stationary method. Therefore, it is not necessary to increase the number of protrusions in order to improve the strength by increasing the rigidity of the filler sheet, and the total number of protrusions can be reduced by about 50% compared to the case of the conventional installation method. As a result, the pressure loss is reduced, and the effects as described above can be expected.
[0024]
Further, the hook-shaped portion 13 of the hanging metal fitting 14 is detached from the pin 16 attached to the beam 15 of the cooling tower, removed from the cooling tower in a state where the hanging pipe 11 penetrates the filler block, and penetrates the filler sheet 23. If the suspension pipe 11 is pulled out from the hole 25, it can be separated into individual filler sheets, so that the filler sheet can be easily cleaned, and as a result, the life of the filler sheet can be extended. .
[0025]
FIG. 4 is a view of FIG. 2A viewed from the right side.
[0026]
FIG. 5 is a diagram showing a case where the filler sheet is composed of two types of sheet A and sheet B depending on the shape of the through-hole provided in the upper part. As shown in FIG. In the lower part, a long hole-like through-hole 26 in which the hanging pipe 11 can move up and down is formed in a direction (vertical direction in this embodiment) intersecting the vertical end face E of the sheet, as shown in FIG. As shown in FIG. 5, the through holes 27 provided in the upper and lower portions of the B sheet 23b are slightly larger than the diameter of the suspension pipe 11, and the lower ends of the through holes 27 are located on the same horizontal plane as the lower ends of the long through holes 26. When the A sheet 23a and the B sheet 23b are alternately arranged as shown in FIG. 5 (c), the upper end surface and the lower end surface of the A sheet 23a have a length of the through hole than that of the B sheet 23b. Do not go down by the amount corresponding to the difference As a result, as it is apparent in FIG. 5 (d) shows an X-X sectional view taken along line in FIG. 5 (C), one side S 1 In A sheet 23a is displaced outward from B sheet 23b, the other side S 2 B, the sheet 23b is shifted outward from a sheet 23a. As a result, as shown in FIG. 5 (e), if the distance on the air suction side of the conventional filler sheet is d, in the present invention, as shown in FIG. The interval on the suction side is 2d. In addition, what is necessary is just to provide the long hole-shaped through-hole 26 in the direction which cross | intersects with respect to the up-down direction end surface E of a filler sheet, and can also be provided in the right downward direction or the left downward direction other than a perpendicular direction.
[0027]
Since the filler of the cross-flow type cooling tower is often stacked in a plurality of stages in the height direction, the hot water tends to be drawn downstream by the air flow in the filler block, so that the filler blocks 2a, 2b, As shown in FIG. 2A, 2c is inclined so that the lower side is inward compared to the upper side. Therefore, the water flowing down the filler sheet is likely to gather on the end surface of the filler sheet on the air suction side, and as shown in FIG. 5E, the water collecting portion 28 is likely to be formed on the air suction side of the filler sheet. . This water collection section hinders air flow. In addition, the pressure loss is even greater if the air suction side spacing is narrow. Therefore, according to the present invention, as shown in FIG. 5 (f), if the air passage area of the inlet portion is increased as compared with the case of FIG. 5 (e), the wind speed is lowered, and as a result, the pressure loss is reduced. You can expect the same effect.
[0028]
【The invention's effect】
Since this invention is comprised as mentioned above, there exists the following effect.
(1) Since the strength is improved by supporting the filler sheet by the non-adhesive hanging method, the protrusions provided on the filler sheet are the minimum number of protrusions necessary to maintain the interval between the adjacent filler sheets. The number of protrusions on the whole of the filler sheet can be significantly reduced as compared with the conventional stationary type. As a result, pressure loss is reduced (resistance is reduced), and the amount of treated water per cooling tower can be increased. By increasing the amount of treated water per unit, the cooling tower can be made compact, and space can be saved.
[0029]
In addition, if the hook-shaped part of the hanging bracket is detached from the structural member of the cooling tower and the hanging member is pulled out from the through hole of the filler sheet, it can be separated into individual filler sheets. Sheet cleaning is facilitated, and as a result, the life of the filler sheet can be extended.
[0030]
Furthermore, since the pressure loss can be reduced without deteriorating the heat exchange performance of the filler sheet, the power of the cooling fan is reduced, and the operating cost can be reduced.
(2) Particularly, the end faces of the filler sheets in the horizontal cross-sectional direction are regularly displaced without aligning the end faces of the plurality of filler sheets, and the air passage area at the inlet portion of the filler sheets is increased. As a result, the pressure loss can be further reduced, and the amount of treated water can be greatly increased, and further space saving and cost reduction can be achieved.
[Brief description of the drawings]
FIG. 1 is a cross-sectional view of a crossflow cooling tower.
FIG. 2 (a) is a side view showing an example of supporting the filler of the cooling tower by the support structure of the present invention, and FIG. 2 (b) is a side view showing an example of a hanging metal fitting. (C) is a figure which shows an example which suspends a hanging pipe with another hanging metal fitting, FIG.2 (d) is a top view which shows a part of hanging metal fitting of FIG.2 (c).
FIG. 3 is a perspective view showing an example of supporting the cooling tower filler by the support structure of the present invention.
FIG. 4 is a diagram of FIG. 2A viewed from the right side.
5 (a) is a front view showing an example of a filler sheet, FIG. 5 (b) is a front view showing another example of the filler sheet, and FIG. 5 (c) is the same as FIG. 5 (a). 5 (b) is a perspective view showing a state in which the filler sheets are alternately arranged, FIG. 5 (d) is a cross-sectional view taken along the line XX of FIG. 5 (c), and FIG. 5 (e) is a conventional filler. The figure which shows the air suction side of a sheet | seat, FIG.5 (f) is a figure which shows the air suction side of the filler sheet | seat of this invention.
FIG. 6 is a perspective view showing an example of a conventional stationary filler sheet.
[Explanation of symbols]
2, 2a, 2b, 2c ... filler block 3 ... cooling fan 4 ... hot water distribution tank 10 ... cold water tank 11 ... hanging pipes 12, 17 ... pipe insertion opening 13 ... bowl-shaped part 14 ... hanging metal fitting 15 ... beam 16 ... Pins 22 and 34 ... Projections 23 ... Filler sheet 23a ... A sheet 23b ... B sheet 24 ... Recesses 25, 26 and 27 ... Through holes

Claims (1)

複数の充填材シートから構成される充填材ブロック上方に温水を供給する温水分配槽を備え、該充填材ブロック下方に冷水槽を備え、充填材ブロック中を流下する温水を気流によって冷却する冷却塔の充填材の支持構造であって、各充填材シートの上部に貫通孔を設け、複数の充填材シートの端面を揃えて並列して配し、充填材シートの上部に設けた貫通孔に吊り下げ部材を挿通し、該吊り下げ部材挿通用の開口と鉤形部を有する吊り下げ金具の該吊り下げ部材挿通開口に上記吊り下げ部材を挿通し、吊り下げ金具の鉤形部を冷却塔の構造部材に係合する冷却塔の充填材の支持構造において、充填材シートの形状が平行四辺形であって、上部に設ける貫通孔の形状によって充填材シートがAシートとBシートの2種類から構成され、Aシートの上部には吊り下げ部材が上下に移動可能な長孔状の貫通孔をシートの上下方向端面に対して交差する方向に設け、Bシートの上部に設ける貫通孔の下端は上記長孔状の貫通孔の下端と同一水平面に位置するように設け、充填材ブロックはAシートとBシートを交互に配置したものから構成されることを特徴とする冷却塔の充填材の支持構造。A cooling tower having a hot water distribution tank for supplying hot water above a filler block composed of a plurality of filler sheets, a cold water tank below the filler block, and cooling the hot water flowing down the filler block by an air flow The filler support structure is provided with a through hole at the top of each filler sheet, the end faces of the plurality of filler sheets are aligned and arranged in parallel, and suspended in the through hole provided at the top of the filler sheet. The suspension member is inserted, the suspension member is inserted into the suspension member insertion opening of the suspension metal fitting having an opening for insertion of the suspension member and the collar portion, and the collar portion of the suspension metal fitting is connected to the cooling tower. In the support structure for the filler of the cooling tower that engages with the structural member, the shape of the filler sheet is a parallelogram, and the filler sheet is divided into two types, A sheet and B sheet, depending on the shape of the through hole provided in the upper part. Constructed, A sheet A long hole-like through-hole through which the suspension member can move up and down is provided in the upper part in a direction intersecting the vertical end surface of the sheet, and the lower end of the through-hole provided in the upper part of the B sheet is the long hole-like through hole. A support structure for a filler in a cooling tower, wherein the filler block is provided so as to be positioned on the same horizontal plane as the lower end of the hole, and the filler block is configured by alternately arranging A sheets and B sheets .
JP23429899A 1999-08-20 1999-08-20 Support structure for cooling tower filler Expired - Fee Related JP3657150B2 (en)

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FI20010278A (en) * 2001-02-14 2002-08-15 Esp Tekniikka Oy Cooling tower honeycomb mattress
JP4821269B2 (en) * 2005-10-31 2011-11-24 Jfeスチール株式会社 Method for manufacturing cooling tower filler unit
JP2011137606A (en) * 2009-12-28 2011-07-14 Ebara Corp Filler for gas-liquid contact and cooling tower
CN108195220B (en) * 2017-12-21 2019-07-16 巴尔的摩冷却系统(苏州)有限公司 A kind of tight bar of expansion and auxiliary fixture of cooling tower filler installation
JP2023022734A (en) * 2021-08-03 2023-02-15 空研工業株式会社 cooling tower

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CN110332820A (en) * 2019-05-30 2019-10-15 无锡三九制冷设备有限公司 A kind of installation method of cooling tower and cooling tower filler
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