JPH041273B2 - - Google Patents
Info
- Publication number
- JPH041273B2 JPH041273B2 JP58194385A JP19438583A JPH041273B2 JP H041273 B2 JPH041273 B2 JP H041273B2 JP 58194385 A JP58194385 A JP 58194385A JP 19438583 A JP19438583 A JP 19438583A JP H041273 B2 JPH041273 B2 JP H041273B2
- Authority
- JP
- Japan
- Prior art keywords
- dry
- cooling section
- cooling
- tower
- wet
- 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 108
- 239000000498 cooling water Substances 0.000 claims description 10
- 238000005192 partition Methods 0.000 claims description 3
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 26
- 238000010276 construction Methods 0.000 description 5
- 239000000779 smoke Substances 0.000 description 3
- 238000000034 method Methods 0.000 description 2
- 229910000831 Steel Inorganic materials 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 239000000203 mixture Substances 0.000 description 1
- 239000007787 solid Substances 0.000 description 1
- 239000010959 steel Substances 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
- 239000002023 wood Substances 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)
- Heat-Exchange Devices With Radiators And Conduit Assemblies (AREA)
Description
【発明の詳細な説明】
本発明は乾・湿式冷水塔に係り、特に伝熱管群
からなる高重量の乾式冷却部を塔内基礎側に設置
でき、乾式冷却部の支持架構を簡易化できると共
に、塔高を低くできる乾・湿式冷水塔に関する。DETAILED DESCRIPTION OF THE INVENTION The present invention relates to a dry/wet cooling tower, and in particular allows a heavy dry cooling section consisting of a group of heat transfer tubes to be installed on the foundation side of the tower, thereby simplifying the supporting structure of the dry cooling section. , related to dry/wet cooling water towers that can reduce the height of the tower.
乾・湿式冷水塔は、化学工場、製鉄所等のプラ
ント系や発電所などで発生する温水を冷却処理す
る装置であり、温水と冷気（外気）とを間接熱交
換させて冷却する乾式冷却部と、直接熱交換させ
て、冷却する湿式冷却部とを備えている。 A dry/wet cooling water tower is a device that cools hot water generated in plants such as chemical factories and steel mills, power plants, etc. It is a dry cooling unit that cools hot water and cold air (outside air) by indirect heat exchange. and a wet cooling section that performs cooling through direct heat exchange.
従来のこの種冷水塔を第１図に示す。図示する
如く、冷水塔ａの下側部には、湿式冷却部ｂ，ｂ
が互いに対向させて設けられると共に、湿式冷却
部ｂ，ｂ上方の冷水塔ａ上側部には乾式冷却部
ｃ，ｃがそれぞれ設けられている。そして、乾式
冷却部ｃ，ｃ間には混合室ｄが形成され、混合室
ｄ底部より流入する湿式冷却部ｂからの湿り空気
と、混合室ｄ側部より流入する乾式冷却部ｃから
の乾燥空気とは混合室ｄには混合され排気筒ｅか
ら大気開放される。湿式冷却部ｂと乾式冷却部ｃ
とを組み合わせたのは、湿式冷却部ｂからの湿り
空気に乾式冷却部ｃからの乾燥空気を混入して排
気湿度を下げ、殊に冬期などにおいて発生し公害
問題となる排気の白煙化を防止するためである。 A conventional cooling water tower of this type is shown in Figure 1. As shown in the figure, the lower part of the cooling tower a has wet cooling sections b and b.
are provided to face each other, and dry cooling units c, c are provided above the wet cooling units b, b and above the cooling tower a, respectively. A mixing chamber d is formed between the dry cooling sections c and c, where moist air from the wet cooling section b flows in from the bottom of the mixing chamber d, and dry air from the dry cooling section c flows in from the side of the mixing chamber d. The mixture is mixed with air in the mixing chamber d and released to the atmosphere from the exhaust pipe e. Wet cooling section b and dry cooling section c
The combination of these two methods mixes the humid air from the wet cooling section b with the dry air from the dry cooling section c to lower the exhaust humidity and prevent white smoke from the exhaust, which is a pollution problem especially in winter. This is to prevent this.
ところが、上記従来の冷水塔ａにあつては、温
水を流す多数の伝熱管群を有し高重量の乾式冷却
部ｃが湿式冷却部ｂの上方に設置されている。こ
のため、乾式冷却部ｃの支持架橋が複雑で大掛り
なものとなり、その建造が大変である。そこで、
乾式冷却部ｃを冷水塔ａ外側に設けて塔本体とは
独立した支持架構としたものがある。このように
すると、支持架構の構造は簡単化されるが、やは
り湿式冷却部ｂ上方に乾式冷却部ｃを支持するの
で、架構は大型であり、塔高も高く建造コストが
かさむ。 However, in the conventional cooling tower a, a heavy dry cooling section c, which has a large number of heat transfer tube groups through which hot water flows, is installed above the wet cooling section b. For this reason, the support bridge for the dry cooling section c becomes complicated and large-scale, making its construction difficult. Therefore,
There is one in which the dry cooling section c is provided outside the cooling water tower a, and is used as a support frame independent of the tower body. This simplifies the structure of the support frame, but since the dry cooling section c is supported above the wet cooling section b, the frame is large and the tower height is high, increasing the construction cost.
本発明は以上の従来の問題点を有効に解決すべ
く創案されたものであり、本発明の目的は、伝熱
管群からなる高重量の乾式冷却部を塔内基礎側に
設置できるようになし、もつて乾式冷却部の支持
架構の小型・簡易化及び塔高の低減が図れる乾・
湿式冷水塔を提供することにある。 The present invention was devised to effectively solve the above-mentioned conventional problems, and an object of the present invention is to enable a heavy dry cooling section consisting of a group of heat transfer tubes to be installed on the foundation side of the tower. , Motsutsu is a dry cooling system that allows the support structure of the dry cooling section to be made smaller and simpler, and the tower height to be reduced.
Our purpose is to provide wet cooling towers.
上記目的を達成するために、本発明は塔側部に
互いに対向させて設けられた湿式冷却部間の塔内
部に乾式冷却部を設け、該乾式冷却部にこれを通
過する風量を調整するための第１のダンパを設け
ると共に、上記湿式冷却部の一方と乾式冷却部と
の間の上部を仕切るように設けられこれを通過す
る風量を調整するための第２のダンパを設けて構
成したことを特徴とする。 In order to achieve the above object, the present invention provides a dry cooling section inside the tower between wet cooling sections provided opposite each other on the side of the tower, and a method for adjusting the amount of air passing through the dry cooling section. A first damper is provided, and a second damper is provided to partition the upper part between one of the wet cooling sections and the dry cooling section and to adjust the amount of air passing therethrough. It is characterized by
以下に本発明の好適実施例を添付図面に従つて
詳述する。 Preferred embodiments of the present invention will be described in detail below with reference to the accompanying drawings.
第２図において、１は断面矩形の筒体状の冷水
塔であり、湿式冷却部２Ａ，２Ｂが冷水塔１の側
壁部を形成するように所定間隔を隔てて互いに対
向させて設けられている。湿式冷却部２Ａ，２Ｂ
には、木材等が充填され、温水を流下する充填層
が形成されている。そして、この充填層を流下す
る温水と充填層を通過する冷気（外気）との接触
距離を稼ぐために湿式冷却部２Ａ，２Ｂは、その
上部を塔外側にやや傾けた状態でそれぞれ設置さ
れている。 In FIG. 2, reference numeral 1 denotes a cylindrical cooling water tower with a rectangular cross section, and wet cooling sections 2A and 2B are provided facing each other at a predetermined interval so as to form side walls of the cooling tower 1. . Wet cooling section 2A, 2B
is filled with wood etc. to form a packed layer through which hot water flows. In order to increase the contact distance between the hot water flowing down the packed bed and the cold air (outside air) passing through the packed bed, the wet cooling units 2A and 2B are installed with their upper parts slightly inclined toward the outside of the tower. There is.
湿式冷却部２Ａ，２Ｂ間には、温水を移送する
多数のフイン付き伝熱管からなる乾式冷却部３が
設けられている。乾式冷却部３の各伝熱管も、図
中左方の湿式冷却部２Ａと平行にやや傾斜して立
設されている。乾式冷却部３の図中、右方の湿式
冷却部２Ｂに臨む側面部には、湿式冷却部３を通
過して流れる気体流量を調節するための第１のダ
ンパD1が設けられている。また、図中、左方の
湿式冷却部２Ａと乾式冷却部３との間には、それ
らの間の上部を仕切るように流量調整用の第２に
ダンパD2が設けられている。更に、湿式冷却部
２Ａ，２Ｂの塔内側の側面部にもダンパD3，D4
がそれぞれ設けられている。 A dry cooling section 3 consisting of a large number of finned heat transfer tubes for transferring hot water is provided between the wet cooling sections 2A and 2B. Each heat transfer tube of the dry cooling section 3 is also erected slightly inclined in parallel with the wet cooling section 2A on the left side of the figure. A first damper D1 for adjusting the flow rate of gas passing through the wet cooling section 3 is provided on the side surface of the dry cooling section 3 facing the wet cooling section 2B on the right side in the figure. Further, in the figure, a second damper D2 for flow rate adjustment is provided between the wet cooling section 2A and the dry cooling section 3 on the left side so as to partition the upper part between them. Furthermore, dampers D 3 and D 4 are also installed on the inner side surfaces of the towers of the wet cooling sections 2A and 2B.
are provided for each.
また、乾式冷却部３の下部には、乾式冷却部３
の各伝熱管に温水を分配供給する下部ヘツダ４が
設けられると共に、乾式冷却部３上部には、各伝
熱管を通つて上昇した温水を集める上部ヘツダ５
が設けられている。上部ヘツダ５からは湿式冷却
部２Ａ，２Ｂの上方にそれぞれ設けられた温水槽
６，７に温水を移送するための移送管８，９が配
設されている。移送管８，９には温水流量を調整
するバルブ１０，１１がそれぞれ設けられてい
る。また、冷水塔１底部には、冷水槽１２が設け
られ、冷水塔１上壁には強制排気用のフアン１３
を有する排気筒１４が設けられている。 In addition, at the bottom of the dry cooling unit 3, a dry cooling unit 3 is provided.
A lower header 4 is provided to distribute and supply hot water to each heat exchanger tube, and an upper header 5 is provided above the dry cooling section 3 to collect hot water that has risen through each heat exchanger tube.
is provided. Transfer pipes 8 and 9 are provided for transferring hot water from the upper header 5 to hot water tanks 6 and 7 provided above the wet cooling units 2A and 2B, respectively. The transfer pipes 8 and 9 are provided with valves 10 and 11, respectively, for adjusting the flow rate of hot water. Further, a cold water tank 12 is provided at the bottom of the cold water tower 1, and a forced exhaust fan 13 is provided on the upper wall of the cold water tower 1.
An exhaust pipe 14 is provided.
次に本実施例の作用について述べる。 Next, the operation of this embodiment will be described.
まず、夏期など冷水塔１の排気空気の白煙化が
生じるおそれのない場合の通常運転（温水の冷却
を湿式冷却部のみで行う）について説明する。こ
の通常運転時には、第１のダンパD1は閉成し、
第２のダンパD2を全開とする。また、移送管８，
９のバルブ１０，１１をともに開とする。 First, normal operation (cooling of hot water is performed only by the wet cooling section) in a case where there is no risk of the exhaust air of the cooling tower 1 turning into white smoke, such as during summer, will be described. During this normal operation, the first damper D1 is closed,
The second damper D2 is fully opened. In addition, the transfer pipe 8,
Both valves 10 and 11 of No. 9 are opened.
プラント系などから乾式冷却部３の下部ヘツダ
４に送られてきた温水は、乾式冷却部３の各伝熱
管を通り上部ヘツダ５に集められ、移送管８，９
より温水槽６，７に送られる。温水槽６，７に送
られた温水は、温水槽６，７から湿式冷却部２
Ａ，２Ｂ上部に散布され、湿式冷却部２Ａ，２Ｂ
を流下する。そして、湿式冷却部２Ａ，２Ｂを流
下する間に、湿式冷却部２Ａ，２Ｂを通過して塔
内に導入される外気により、温水は冷却される。
冷却処理された冷却水は冷水槽１２に貯留され、
再びプラント系などに戻される。 Hot water sent from the plant system etc. to the lower header 4 of the dry cooling section 3 passes through each heat transfer tube of the dry cooling section 3, is collected in the upper header 5, and is transferred to the transfer pipes 8, 9.
The water is then sent to hot water tanks 6 and 7. The hot water sent to the hot water tanks 6 and 7 is transferred from the hot water tanks 6 and 7 to the wet cooling unit 2.
Spread on the upper part of A, 2B, wet cooling section 2A, 2B
flows down. Then, while flowing down the wet cooling units 2A and 2B, the hot water is cooled by the outside air that passes through the wet cooling units 2A and 2B and is introduced into the tower.
The cooled water subjected to cooling treatment is stored in a cold water tank 12,
It is returned to the plant system.
一方、湿式冷却部２ＡおよびダンパD3を通過
し、湿式冷却部２Ａと乾式冷却部３との間の塔内
空間部S1に導入された湿り空気は、第１のダンパ
D1がとじられているため、図中、実線の矢印で
示す如く塔内を上昇し第２のダンパD2を通る。
また、湿式冷却部２ＢおよびダンパD4を通つて、
湿式冷却部２Ｂと第１のダンパD1との間の塔内
空間部S2に導入された湿り空気も、塔内を上昇
し、塔上部において上記第２のダンパD2を通つ
てきた湿り空気と合流し、排気筒１４から排気さ
れる。 On the other hand, the humid air that has passed through the wet cooling section 2A and the damper D3 and is introduced into the tower internal space S1 between the wet cooling section 2A and the dry cooling section 3 is transferred to the first damper.
Since D 1 is closed, it rises inside the tower and passes through the second damper D 2 as shown by the solid arrow in the figure.
In addition, through the wet cooling section 2B and the damper D4 ,
The humid air introduced into the column internal space S2 between the wet cooling section 2B and the first damper D1 also rises inside the column, and the moist air that has passed through the second damper D2 at the top of the column. It merges with air and is exhausted from the exhaust pipe 14.
次いで、冬期など、湿式冷却部のみの温水冷却
では冷却塔１の排気空気の白煙化を起こす場合の
乾・湿式運転について説明する。この乾・湿式運
転時には、第１のダンパD1を開き、第２のダン
パD2を閉じ、更に移送管８のバルブ１０を閉じ
て湿式冷却部２Ａへの降下を停止する。 Next, a description will be given of dry/wet operation in a case where hot water cooling of only the wet cooling section causes the exhaust air of the cooling tower 1 to turn into white smoke, such as during winter. During this dry/wet type operation, the first damper D1 is opened, the second damper D2 is closed, and the valve 10 of the transfer pipe 8 is further closed to stop the descent to the wet type cooling section 2A.
湿式冷却部２Ａには、温水が流されないので、
湿式冷却部２Ａは、乾燥状態にあり、湿式冷却部
２ＡおよびダンパD3を通つた外気はそのままの
状態で塔内空間部S1に導入される。ところが、こ
の乾・湿式運転時には、第２のダンパD2は閉ざ
され、第１のダンパD1が開いているので、塔内
空間部S1に導入された外気は、図中、破線の矢印
で示す如く乾式冷却部３及び第１のダンパD1を
通り、乾式冷却部３を通過する際に加熱され高温
乾燥空気となつて塔内空間部S2に導かれる。一
方、湿式冷却部２ＢおよびダンパD4を通過して
塔内空間部S2に導入された外気は、通常運転時と
同様に湿り空気とされる。そして、この湿り空気
と乾式冷却部３を通過してきた上記高温乾燥空気
とは、塔内空間部S2で混合され、排気筒１４より
大気開放されることになる。 Since hot water is not flowed into the wet cooling section 2A,
The wet cooling section 2A is in a dry state, and the outside air that has passed through the wet cooling section 2A and the damper D 3 is introduced into the column internal space S 1 as is. However, during this dry/wet operation, the second damper D 2 is closed and the first damper D 1 is open, so the outside air introduced into the column interior space S 1 flows in the direction indicated by the dashed arrow in the figure. As shown in the figure, the air passes through the dry cooling section 3 and the first damper D1 , is heated while passing through the dry cooling section 3, becomes high-temperature dry air, and is guided to the column internal space S2 . On the other hand, the outside air that has passed through the wet cooling section 2B and the damper D4 and is introduced into the tower internal space S2 is made into humid air as in the normal operation. This humid air and the high-temperature dry air that has passed through the dry cooling section 3 are mixed in the tower internal space S2 , and are exposed to the atmosphere through the exhaust pipe 14.
このように、本実施例では、第１のダンパD1、
第２のダンパD2およびバルブ１０の開閉制御に
より、湿式通常運転と乾・湿式運転とに自由に切
り換えることができる。また、上記のように構成
したことにより、乾式冷却部３を湿式冷却部２
Ａ，２Ｂ間の塔内基礎側に設置することが可能と
なる。このため、乾式冷却部３を支持する支持架
構を小型且つ簡易なものにできると共に、冷水塔
１の高さを低くできる。従つて、冷水塔１の建設
コストの低減、建設期間の短絡などが図れる。 In this way, in this embodiment, the first damper D 1 ,
By controlling the opening and closing of the second damper D2 and the valve 10, it is possible to freely switch between wet normal operation and dry/wet operation. Moreover, by configuring as described above, the dry cooling section 3 is replaced by the wet cooling section 2.
It can be installed on the foundation side of the tower between A and 2B. Therefore, the support frame that supports the dry cooling section 3 can be made small and simple, and the height of the cooling tower 1 can be reduced. Therefore, the construction cost of the cooling tower 1 can be reduced and the construction period can be shortened.
なお、冷水塔を複数設置する場合には、上記構
成の冷水塔１のユニツトを、第３図に示すように
連設し、乾式冷却部３３を湿式冷却部２Ｂ側の片
側配置としたり、あるいは、第４図に示すよう
に、各冷水塔ユニツトの乾式冷却部３を２分割す
ると共に、これに対応して湿式冷却部２Ａ，２Ｂ
もそれぞれ２分割し、かかる構成の冷水塔ユニツ
トを連設して乾式冷却部３が湿式冷却部２Ａ，２
Ｂ両側に交互配置となるようにしてもよい。 In addition, in the case of installing a plurality of cooling water towers, the units of the cooling water tower 1 having the above configuration are arranged in series as shown in FIG. 3, and the dry cooling section 33 is placed on one side on the wet cooling section 2B side, or , as shown in FIG. 4, the dry cooling section 3 of each cooling tower unit is divided into two, and correspondingly, the wet cooling section 2A, 2B is divided into two parts.
Each of these is divided into two parts, and cooling water tower units with such a configuration are connected in series so that the dry cooling section 3 becomes the wet cooling section 2A, 2.
They may be arranged alternately on both sides of B.
以上要するに本発明によれば、伝熱管群からな
る高重量の乾式冷却部を塔内基礎側に設置でき、
乾式冷却部の支持架構の小型・簡易化が図れると
共に冷水塔の高さを低減し得、冷水塔の建設コス
トの低減・冷水塔の安定性の向上が図れるなどの
優れた効果を奏する。 In summary, according to the present invention, a heavy dry cooling section consisting of a group of heat transfer tubes can be installed on the foundation side of the tower,
The support structure of the dry cooling section can be made smaller and simpler, and the height of the cooling tower can be reduced, resulting in excellent effects such as reducing the construction cost of the cooling tower and improving the stability of the cooling tower.
第１図は従来の乾・湿式冷水塔の側断面図、第
２図は本発明に係る乾・湿式冷水塔の側断面図、
第３図、第４図は冷水塔ユニツトを複数連設した
ときの乾式冷却部の配置例をそれぞれ示す平面図
である。
図中、１は冷水塔、２Ａ，２Ｂは湿式冷却部、
３は乾式冷却部、D1は第１のダンパ、D2は第２
のダンパである。
FIG. 1 is a side sectional view of a conventional dry/wet cooling tower, and FIG. 2 is a side sectional view of a dry/wet cooling tower according to the present invention.
FIGS. 3 and 4 are plan views respectively showing examples of the arrangement of dry cooling units when a plurality of cooling tower units are installed in series. In the figure, 1 is a cooling water tower, 2A and 2B are wet cooling sections,
3 is the dry cooling section, D 1 is the first damper, D 2 is the second
It is a damper.
Claims (1)
却部と、これら湿式冷却部間の塔内部に設けられ
た乾式冷却部と、該乾式冷却部にこれを通過する
風量を調整するために設けられた第１のダンパ
と、上記湿式冷却部の一方と上記乾式冷却部との
間の上部を仕切るように設けられこれを通過する
風量を調整するために設けられた第２のダンパと
を備えたことを特徴とする乾・湿式冷水塔。1 A wet cooling section provided on the side of the tower facing each other, a dry cooling section provided inside the tower between these wet cooling sections, and a dry cooling section provided to adjust the amount of air passing through the dry cooling section. and a second damper provided to partition an upper part between one of the wet cooling parts and the dry cooling part and to adjust the amount of air passing therethrough. A dry/wet type cooling water tower.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP58194385A JPS6086381A (en) | 1983-10-19 | 1983-10-19 | Dry/wet cooling tower |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP58194385A JPS6086381A (en) | 1983-10-19 | 1983-10-19 | Dry/wet cooling tower |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS6086381A JPS6086381A (en) | 1985-05-15 |
| JPH041273B2 true JPH041273B2 (en) | 1992-01-10 |
Family
ID=16323716
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP58194385A Granted JPS6086381A (en) | 1983-10-19 | 1983-10-19 | Dry/wet cooling tower |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS6086381A (en) |
Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104864740B (en) * | 2014-02-24 | 2017-01-18 | 禾玖科技股份有限公司 | Dry gas-water cold-heat exchange device |
| CN104864522B (en) * | 2014-02-26 | 2017-08-11 | 禾玖科技股份有限公司 | water resource energy conversion system |
| KR101535232B1 (en) * | 2014-08-04 | 2015-07-09 | 삼성엔지니어링 주식회사 | Cooling tower having plume abating means |
-
1983
- 1983-10-19 JP JP58194385A patent/JPS6086381A/en active Granted
Also Published As
| Publication number | Publication date |
|---|---|
| JPS6086381A (en) | 1985-05-15 |
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