JPH0471158B2 - - Google Patents
Info
- Publication number
- JPH0471158B2 JPH0471158B2 JP58189351A JP18935183A JPH0471158B2 JP H0471158 B2 JPH0471158 B2 JP H0471158B2 JP 58189351 A JP58189351 A JP 58189351A JP 18935183 A JP18935183 A JP 18935183A JP H0471158 B2 JPH0471158 B2 JP H0471158B2
- Authority
- JP
- Japan
- Prior art keywords
- cooling section
- dry
- hot water
- wet
- passage
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired
Links
- 238000001816 cooling Methods 0.000 claims description 85
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 40
- 238000005192 partition Methods 0.000 claims description 12
- 239000000498 cooling water Substances 0.000 claims description 8
- 239000000779 smoke Substances 0.000 description 10
- 238000009434 installation Methods 0.000 description 5
- 230000015572 biosynthetic process Effects 0.000 description 1
Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F28—HEAT EXCHANGE IN GENERAL
- F28C—HEAT-EXCHANGE APPARATUS, NOT PROVIDED FOR IN ANOTHER SUBCLASS, IN WHICH THE HEAT-EXCHANGE MEDIA COME INTO DIRECT CONTACT WITHOUT CHEMICAL INTERACTION
- F28C1/00—Direct-contact trickle coolers, e.g. cooling towers
- F28C1/14—Direct-contact trickle coolers, e.g. cooling towers comprising also a non-direct contact heat exchange
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02B—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO BUILDINGS, e.g. HOUSING, HOUSE APPLIANCES OR RELATED END-USER APPLICATIONS
- Y02B30/00—Energy efficient heating, ventilation or air conditioning [HVAC]
- Y02B30/70—Efficient control or regulation technologies, e.g. for control of refrigerant flow, motor or heating
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
Description
【発明の詳細な説明】
本発明は湿式冷却部の上部から被処理温水を流
下させ、下部から外部空気を通して被処理温水と
直接熱交換するカウンターフロー型冷水塔に係
り、特に湿式冷却部で生じる湿り空気の白煙化防
止のため乾式冷却部を設置した乾式部付きカウン
ターフロー型冷水塔に関するものである。DETAILED DESCRIPTION OF THE INVENTION The present invention relates to a counterflow type cooling water tower in which hot water to be treated flows down from the upper part of the wet cooling section and external air is passed through the lower part to directly exchange heat with the hot water to be treated. This relates to a counterflow type cooling water tower with a dry cooling section installed to prevent moist air from turning into white smoke.
カウンターフロー型冷水塔は塔本体内に湿式冷
却部を設け、塔本体下部に外部空気の吸込口を設
け、塔本体頂部にフアンスタツクを設けたもの
で、フアンスタツクにより外部空気を吸込口から
吸引し、湿式冷却部内を流下する被処理温水と直
接熱交換したのち、フアンスタツクから排気する
ものである。このフアンスタツクから排気される
空気は、湿式冷却部で被処理温水と直接接触する
ため湿り空気となつて排出される。湿り空気は大
気中に冷却拡散するにおいて過飽和域となり凝縮
して白煙を生じ易い。 A counterflow type cooling water tower has a wet cooling section inside the tower body, an external air suction port at the bottom of the tower body, and a fan stack at the top of the tower body. After directly exchanging heat with the hot water to be treated flowing down inside the wet cooling section, it is exhausted from the fan stack. The air exhausted from the fan stack comes into direct contact with the hot water to be treated in the wet cooling section, and is therefore discharged as humid air. When humid air is cooled and diffused into the atmosphere, it becomes a supersaturated region and tends to condense and produce white smoke.
この排気の白煙化は外気温の低い冬期において
顕著に現われ、夏期においては少ない。 This white smoke in the exhaust gas is noticeable in the winter when the outside temperature is low, and less so in the summer.
従来、この湿式冷却部と、外部空気と被処理温
水とが間接熱交換する乾式冷却部と、湿式冷却部
とを組み合わせ、湿式冷却部で生じた湿り空気を
乾式冷却部を通つた乾き空気と混合してその絶対
温度を下げ排気の白煙化を防止することがなされ
ている。 Conventionally, this wet cooling section was combined with a dry cooling section in which external air and the hot water to be treated indirectly exchange heat, and a wet cooling section, and the humid air generated in the wet cooling section was exchanged with dry air passing through the dry cooling section. Mixing is used to lower the absolute temperature and prevent the exhaust from turning into white smoke.
しかしながら、排気の白煙化は冬期において著
しく、夏期には少ないため、夏期においては乾式
冷却部の運転は無駄であり、またその設置スペー
スも無駄となる問題がある。 However, since white smoke in the exhaust gas is noticeable in the winter and less in the summer, there is a problem in that the operation of the dry cooling section is wasteful in the summer and the installation space thereof is also wasted.
本発明の目的は、乾式冷却部を有し、その乾式
冷却部を季節に応じて運転自在とし、しかも休止
中の乾式冷却部の設置スペースが無駄とならない
乾式部付カウンターフロー型冷水塔を提供するも
のである。 An object of the present invention is to provide a counterflow type cooling water tower with a dry cooling section, which can be operated freely depending on the season, and in which the installation space of the dry cooling section is not wasted when the dry cooling section is inactive. It is something to do.
本発明は塔本体の中央部に仕切板を設けて外部
空気の内側通路と外側通路を形成し、その外側通
路に外側湿式冷却部を設け、また内側通路に乾式
冷却部と内側湿式冷却部とを設けると共にその内
側通路の乾式冷却部と内側湿式冷却部へ被処理温
水を任意に切換える温水供給手段を設けたことを
特徴とするもので、冬期には内側通路の乾式冷却
部に被処理温水を供給し、外側通路の外側湿式冷
却部と内側通路の乾式冷却部を運転して湿式冷却
部の湿り空気の白煙化を防止させ、夏期などには
内側通路の内側湿式冷却部に被処理温水を供給し
て内側と外側の両湿式冷却部を運転できるように
したものであり、これにより乾式冷却部を有効に
使用でき、かつ、その設置スペースも無駄のない
ものとすることができるものである。 The present invention provides a partition plate in the center of the tower body to form an inner passage and an outer passage for external air, an outer wet cooling part in the outer passage, and a dry cooling part and an inner wet cooling part in the inner passage. The system is characterized by a hot water supply means for arbitrarily switching the hot water to be treated between the dry cooling section and the wet cooling section in the inner passage.In winter, the hot water to be treated is supplied to the dry cooling section in the inner passage. The outer wet cooling section in the outer passage and the dry cooling section in the inner passage are operated to prevent the humid air in the wet cooling section from turning into white smoke, and during summer, the inner wet cooling section in the inner passage is supplied with It is possible to operate both the inner and outer wet cooling sections by supplying hot water, which allows the dry cooling section to be used effectively and to save space for its installation. It is.
以下、本発明に係る乾式部付カウンターフロー
型冷水塔の好適一実施例を添付図面に基づいて説
明する。 DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS A preferred embodiment of a counterflow cooling tower with a dry section according to the present invention will be described below with reference to the accompanying drawings.
第１図、第２図において、１は箱形の冷水塔本
体で、第２図に示すように前後方向に多数並べて
設置する。冷水塔本体１の左右の側板２の下部に
は外部空気を導入するエアダンパー３が設けられ
る。冷水塔本体１内の中央に対向した仕切板４，
４を設け、その下部を略水平に折り曲げて両側板
２のエアダンパー３を上下に仕切り、仕切板４，
４間に外部空気の内側通路５を、また両仕切板
４，４と両側板２，２間に外部空気の外側通路
６，６を夫々形成する。略水平に折り曲げられた
仕切板４の下部には冷水槽７が形成され、その上
部の外側通路６に外側湿式冷却部８が設けられ、
また湿式冷却部７と同じ高さの位置の内側通路５
にも内側湿式冷却部９が設けられる。冷水槽５の
下方の内側通路５内には多数のフイン付伝熱管か
らなる乾式冷却部１０，１０が地上レベルで対向
して設けられ、乾式冷却部１０間の下方にはその
上方の内側湿式冷却部９から落ちる冷水の冷水槽
１１が設けられる。 1 and 2, reference numeral 1 denotes a box-shaped cooling water tower body, which is installed in large numbers in the front-back direction as shown in FIG. Air dampers 3 for introducing external air are provided at the lower portions of the left and right side plates 2 of the cooling tower main body 1. A partition plate 4 facing the center of the cooling tower main body 1,
4 is provided, and the lower part thereof is bent approximately horizontally to partition the air damper 3 of the both side plates 2 into upper and lower parts, and the partition plate 4,
An inner passage 5 for external air is formed between the two partition plates 4, 4, and outer passages 6 for external air are formed between the partition plates 4, 4 and the side plates 2, 2, respectively. A cold water tank 7 is formed in the lower part of the partition plate 4 bent approximately horizontally, and an outer wet cooling part 8 is provided in the outer passage 6 at the upper part thereof.
In addition, the inner passage 5 is located at the same height as the wet cooling section 7.
Also, an inner wet cooling section 9 is provided. In the lower inner passage 5 of the cold water tank 5, dry cooling sections 10, 10 consisting of a large number of heat exchanger tubes with fins are provided facing each other at ground level. A cold water tank 11 of cold water falling from the cooling section 9 is provided.
乾式冷却部１０、内側湿式冷却部９及び外側湿
式冷却部８には温水供給手段１２により適宜被処
理温水が供給される。この温水供給手段１２は、
主ヘツダ１３から立上管１４、副ヘツダ１５及び
外側湿式冷却部８の上方に設けられた噴出管１６
を通じ外側湿式冷却部８に被処理温水を供給する
主供給ライン１７と、ヘツダー１３から乾式冷却
部１８に被処理温水を通す乾式ライン１９と、副
ヘツダ１５から内側湿式冷却部９に被処理温水を
通す湿式ライン２０とからなり、乾式ライン１９
と湿式ライン２０とは適宜バルブを切換えること
により乾式冷却部１０又は内側湿式冷却部９へ被
処理温水を供給できる。この場合乾式冷却部１０
へ被処理温水を供給するには立上管１４のバルブ
２１を閉じ、乾式ライン１９のバルブ２２を開と
し、主ヘツダ１３から乾式ライン１９のバルブを
通して被処理温水を乾式冷却部１０へ流し、乾式
冷却部１０の戻りライン２３から立上管１４に戻
し、副ヘツダ１５を介して噴出管１６に被処理温
水を供給し、そこから外側湿式冷却部８に被処理
温水を供給する。また、内側湿式冷却部９へ被処
理温水を供給する場合は、乾式ライン１９のバル
ブ２２、戻りライン２３のバルブ２４を閉じ、立
上管１４のバルブ２１を開とし、主ヘツダ１３か
ら立上管１４を介して副ヘツダ１５に被処理温水
を供給し、副ヘツダ１５から噴出管１６を介して
外側湿式冷却部８に供給し、また副ヘツダ１５に
接続された湿式ライン２０のバルブ２５を開いて
内側湿式ライン２０のバルブ２５を開いて内側湿
式冷却部９に被処理温水を供給する。 The dry cooling section 10, the inner wet cooling section 9, and the outer wet cooling section 8 are appropriately supplied with hot water to be treated by a hot water supply means 12. This hot water supply means 12 is
An ejection pipe 16 provided above the main header 13, the riser pipe 14, the sub-header 15, and the outer wet cooling section 8
a main supply line 17 that supplies hot water to be treated to the outer wet cooling section 8 through a dry line 19 that passes hot water to be treated from the header 13 to the dry cooling section 18; It consists of a wet line 20 that passes through, and a dry line 19.
The wet line 20 can supply hot water to be treated to the dry cooling section 10 or the inner wet cooling section 9 by appropriately switching valves. In this case, the dry cooling section 10
To supply hot water to be treated, close the valve 21 of the riser pipe 14, open the valve 22 of the dry line 19, and let the hot water to be treated flow from the main header 13 through the valve of the dry line 19 to the dry cooling section 10. The hot water to be treated is returned from the return line 23 of the dry cooling unit 10 to the riser pipe 14 and supplied to the jet pipe 16 via the sub-header 15, and from there to the outer wet cooling unit 8. In addition, when supplying hot water to be treated to the inner wet cooling section 9, the valve 22 of the dry line 19 and the valve 24 of the return line 23 are closed, the valve 21 of the riser pipe 14 is opened, and the riser is supplied from the main header 13. The hot water to be treated is supplied to the sub-header 15 via the pipe 14, and is supplied from the sub-header 15 to the outer wet cooling section 8 via the jet pipe 16, and the valve 25 of the wet line 20 connected to the sub-header 15 is The valve 25 of the inner wet line 20 is opened to supply hot water to be treated to the inner wet cooling section 9 .
外側湿式冷却部８及び内側湿式冷却部９上の外
側及び内側通路６，５上には飛沫分離のためのル
ーバー２６が設けられ、その上部の塔本体１内に
は内側通路５と外側通路６とが連通するプレナム
室２７が形成され、そのプレナム室２７の中央の
塔本体１の頂部にはフアンスタツク２８が設けら
れている。 A louver 26 for separating droplets is provided on the outer and inner passages 6, 5 on the outer wet cooling part 8 and the inner wet cooling part 9, and the inner passage 5 and the outer passage 6 are provided in the tower body 1 above the louver 26. A plenum chamber 27 is formed which communicates with the tower body 1, and a fan stack 28 is provided at the top of the tower body 1 in the center of the plenum chamber 27.
尚、図中２９は乾式冷却部１０の出口側ダンパ
ーである。 In addition, 29 in the figure is an outlet side damper of the dry cooling section 10.
次に本発明の作用を説明する。 Next, the operation of the present invention will be explained.
先ず冬期においては温水供給手段１２のバルブ
２１，２２，２４，２５を適宜開閉して被処理温
水を主ヘツダ１３から乾式冷却部１０に流したの
ち、外側通路６の外側湿式冷却部８に被処理温水
を供給する。フアンスタツク２８により外部空気
がエアダンパー３を通じて内側通路５及び外側通
路６に各々導入される。内側通路５に導入された
外部空気は乾式冷却部１０を通り、そこで被処理
温水と間接熱交換して内側通路５内を上昇し、プ
レナム室２７に流入する。また、外側通路６に導
入された外部空気は外側湿式冷却部８を通り、そ
こで外側湿式冷却部８を流下する被処理温水と直
接熱交換してプレナム室２７に流入する。プレナ
ム室２７では外側通路６を通つた湿り空気と内側
通路５を通つた乾き空気とが混合されてフアンス
タツク２７より排気されるので白煙化が防止され
る。 First, in winter, the valves 21, 22, 24, and 25 of the hot water supply means 12 are opened and closed as appropriate to flow the hot water to be treated from the main header 13 to the dry cooling section 10, and then to the outside wet cooling section 8 of the outside passage 6. Supply treated hot water. A fan stack 28 introduces external air through the air damper 3 into the inner passage 5 and the outer passage 6, respectively. The external air introduced into the inner passage 5 passes through the dry cooling section 10, where it indirectly exchanges heat with the hot water to be treated, rises within the inner passage 5, and flows into the plenum chamber 27. Further, the external air introduced into the outer passage 6 passes through the outer wet cooling section 8, where it directly exchanges heat with the hot water to be treated flowing down the outer wet cooling section 8, and flows into the plenum chamber 27. In the plenum chamber 27, the humid air that has passed through the outer passage 6 and the dry air that has passed through the inner passage 5 are mixed and exhausted from the fan stack 27, so that white smoke is prevented.
次に夏期など湿り空気の白煙化が生じない場
合、温水供給手段１２のバルブ２１，２２，２
４，２５を適宜切換えて主ヘツダ１３から被処理
温水を外側湿式冷却部８及び内側湿式冷却部９に
夫々供給する。内側通路５及び外側通路６内に導
入された外部空気は夫々その内側及び外側湿式冷
却部９，８を通つてプレナム室２７に流入し、フ
アンスタツク２８により排気される。外側湿式冷
却部８を流下した被処理温水は仕切板４の下部の
冷水槽７に溜り、また内側湿式部９を流下した被
処理温水はその下方の冷水槽１１に溜り適宜冷却
水として各種プラントに供給される。 Next, when humid air does not turn into white smoke such as in summer, the valves 21, 22, 2 of the hot water supply means 12
4 and 25 as appropriate to supply the hot water to be treated from the main header 13 to the outer wet cooling section 8 and the inner wet cooling section 9, respectively. External air introduced into the inner passage 5 and the outer passage 6 enters the plenum chamber 27 through the inner and outer wet cooling sections 9, 8, respectively, and is exhausted by the fan stack 28. The hot water to be treated that has flown down the outer wet cooling section 8 is collected in the cold water tank 7 at the bottom of the partition plate 4, and the hot water to be treated that has flowed down the inner wet cooling section 9 is collected in the cold water tank 11 below, and is used as cooling water for various plants. is supplied to
上述の実施例においては、冷却塔本体１を箱形
とし、その中央に内側通路５を、またその左右両
側に仕切板４にて外側通路６を形成する例を示し
たが、本発明はこれに限定されるものでなく、冷
却塔本体を円形或いは多角形とし、その中央に内
側通路を形成し、その内側通路を包囲するよう外
側通路を仕切板にて形成するようにしても本発明
に含まれる。 In the above embodiment, the cooling tower main body 1 is box-shaped, and an example is shown in which the inner passage 5 is formed in the center and the outer passage 6 is formed by partition plates 4 on both left and right sides. However, the present invention is not limited to this, and the present invention may also be implemented by forming the cooling tower main body in a circular or polygonal shape, forming an inner passageway in the center, and forming an outer passageway with a partition plate so as to surround the inner passageway. included.
以上詳述してきたことから明らかなように本発
明によれば次のごとき優れた効果を発揮する。 As is clear from what has been described in detail above, the present invention exhibits the following excellent effects.
(1) 塔本体内に内側通路と外側通路とを形成し、
その内側通路に湿式冷却部と乾式冷却部とを設
け、温水を適宜その湿式冷却部と乾式冷却部に
供給できるようにしたので冬期においては乾式
冷却部を運転して外側湿式冷却部で生じる湿り
空気の白煙化を防止でき、また夏期などにおい
ては湿式冷却部を運転できるので効率がよい。(1) Forming an inner passage and an outer passage in the tower main body,
A wet cooling section and a dry cooling section are installed in the inner passage, and hot water can be supplied to the wet cooling section and dry cooling section as appropriate.In the winter, the dry cooling section is operated to remove moisture generated in the outer wet cooling section. It is efficient because it prevents the air from turning into white smoke and allows the wet cooling section to be operated during the summer.
(2) 白煙化を防止する場合、内側通路の乾き空気
と外側通路の湿り空気とを混合するので乾き空
気と湿り空気とが配置的に混合されやすくな
る。(2) When preventing white smoke formation, the dry air in the inner passage and the humid air in the outer passage are mixed, so that the dry air and the humid air are more likely to be mixed in the arrangement.
(3) 内側通路に乾式冷却部と湿式冷却部とを設
け、かつ、それを適宜切換えて運転できるので
設置スペースに無駄がない。(3) Since a dry cooling section and a wet cooling section are provided in the inner passageway, and operation can be performed by switching between them as appropriate, no installation space is wasted.
(4) 内側通路内に設ける乾式冷却部を地上レベル
に設置できるので湿式冷却部の架溝が従来と同
様にでき、しかも重量物である乾式冷却部の設
置が簡単になる。(4) Since the dry cooling section provided in the inner passage can be installed at ground level, the bridge groove for the wet cooling section can be made in the same way as before, and the installation of the heavy dry cooling section is simplified.
第１図は本発明に係る乾式部付カウンターフロ
ー型冷水塔の一実施例を示す正面断面図、第２図
は第１図の−線断面図である。
図中、１は冷水塔本体、４は仕切板、５は内側
通路、６は外側通路、８は外側湿式冷却部、９は
内側湿式冷却部、１０は乾式冷却部、１２は温水
供給手段である。
FIG. 1 is a front sectional view showing an embodiment of a counterflow type cooling water tower with a dry section according to the present invention, and FIG. 2 is a sectional view taken along the line -- in FIG. In the figure, 1 is the cooling tower main body, 4 is a partition plate, 5 is an inner passage, 6 is an outer passage, 8 is an outer wet cooling section, 9 is an inner wet cooling section, 10 is a dry cooling section, and 12 is a hot water supply means. be.
Claims (1)
内側通路と外側通路を形成し、その外側通路に外
側湿式冷却部を設け、また内側通路に乾式冷却部
と内側湿式冷却部とを設けると共にその乾式冷却
部と内側湿式冷却部へ被処理温水を任意に切換え
る温水供給手段を設けたことを特徴とする乾式部
付カウンターフロー型冷水塔。1 A partition plate is provided in the center of the tower body to form an inner passage and an outer passage for external air, an outer wet cooling section is provided in the outer passage, and a dry cooling section and an inner wet cooling section are provided in the inner passage. A counterflow type cooling water tower with a dry section, characterized in that a hot water supply means is provided for arbitrarily switching hot water to be treated between the dry cooling section and the inner wet cooling section.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP58189351A JPS6082791A (en) | 1983-10-12 | 1983-10-12 | Counterflow type cooling tower with dry type section |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP58189351A JPS6082791A (en) | 1983-10-12 | 1983-10-12 | Counterflow type cooling tower with dry type section |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS6082791A JPS6082791A (en) | 1985-05-10 |
| JPH0471158B2 true JPH0471158B2 (en) | 1992-11-12 |
Family
ID=16239872
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP58189351A Granted JPS6082791A (en) | 1983-10-12 | 1983-10-12 | Counterflow type cooling tower with dry type section |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS6082791A (en) |
-
1983
- 1983-10-12 JP JP58189351A patent/JPS6082791A/en active Granted
Also Published As
| Publication number | Publication date |
|---|---|
| JPS6082791A (en) | 1985-05-10 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN111981866B (en) | Cooling tower | |
| JPH0471158B2 (en) | ||
| CN212778734U (en) | Cooling tower | |
| JP2593034B2 (en) | cooling tower | |
| KR20040049568A (en) | Hybrid cooling tower | |
| JP3220435B2 (en) | Crossflow cooling tower with white smoke prevention function | |
| JP2630551B2 (en) | Crossflow cooling tower | |
| JPH0989472A (en) | Cooling tower | |
| JP2639887B2 (en) | Crossflow cooling tower | |
| US4793152A (en) | Evaporative cooler with ventilative device | |
| JPS6026292Y2 (en) | Dry/wet cooling tower | |
| JPH0619985Y2 (en) | Cross flow type cooling tower | |
| JPS6082780A (en) | Dry and wet type cooling tower | |
| JPH06159954A (en) | Packing module for cooling tower | |
| JPH0449491Y2 (en) | ||
| JPH06109378A (en) | Forced cooling tower | |
| JP3376018B2 (en) | Crossflow cooling tower | |
| JP2612822B2 (en) | Cross-flow cooling tower with open packing unit | |
| JP2794029B2 (en) | Multi-stage counter-current cooling tower | |
| JPH041275B2 (en) | ||
| JPS6026293Y2 (en) | Dry/wet cooling tower | |
| JPS5923973Y2 (en) | Temperature stratification type heat storage tank device | |
| JPH06323764A (en) | Closed cooling tower | |
| JP3014219U (en) | Cross-flow cooling tower with white smoke prevention function | |
| JP3028428B2 (en) | Crossflow cooling tower with white smoke prevention function |