JPS5875688A - Air-cooler for liquid - Google Patents
Air-cooler for liquidInfo
- Publication number
- JPS5875688A JPS5875688A JP56173992A JP17399281A JPS5875688A JP S5875688 A JPS5875688 A JP S5875688A JP 56173992 A JP56173992 A JP 56173992A JP 17399281 A JP17399281 A JP 17399281A JP S5875688 A JPS5875688 A JP S5875688A
- Authority
- JP
- Japan
- Prior art keywords
- cylindrical body
- flame
- air
- flare stack
- upward
- 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.)
- Pending
Links
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
- F28C1/10—Arrangements for suppressing noise
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F23—COMBUSTION APPARATUS; COMBUSTION PROCESSES
- F23G—CREMATION FURNACES; CONSUMING WASTE PRODUCTS BY COMBUSTION
- F23G7/00—Incinerators or other apparatus for consuming industrial waste, e.g. chemicals
- F23G7/06—Incinerators or other apparatus for consuming industrial waste, e.g. chemicals of waste gases or noxious gases, e.g. exhaust gases
- F23G7/08—Incinerators or other apparatus for consuming industrial waste, e.g. chemicals of waste gases or noxious gases, e.g. exhaust gases using flares, e.g. in stacks
- F23G7/085—Incinerators or other apparatus for consuming industrial waste, e.g. chemicals of waste gases or noxious gases, e.g. exhaust gases using flares, e.g. in stacks in stacks
-
- 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
- F28C1/003—Direct-contact trickle coolers, e.g. cooling towers comprising outlet ducts for exhaust gases
-
- 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)
- Environmental & Geological Engineering (AREA)
- Heat-Exchange Devices With Radiators And Conduit Assemblies (AREA)
- Chimneys And Flues (AREA)
Abstract
Description
【発明の詳細な説明】
冷水塔その他の液体空冷装置は種々の工場において利用
されている。DETAILED DESCRIPTION OF THE INVENTION Cold water towers and other liquid air cooling devices are utilized in a variety of factories.
また可燃流体の安全放出装置であるフレアスタックも燃
料製造工場・化学工場その他においては必須設備である
。Flare stacks, which are safe release devices for flammable fluids, are also essential equipment in fuel manufacturing plants, chemical plants, and other facilities.
両設備を併有する工場では、従来はこれらが各々独立的
に設置されており、それぞれ次に述べる難点を有してい
る。Conventionally, in factories that have both types of equipment, each of them has been installed independently, and each has the following drawbacks.
液体の空冷装置に関しては大気吸入部と排出部との間の
温度差による密度差により所要通風力の全部もしくは一
部を得ているために、大容量の液体空冷装置にあっては
、第１図に示すようにその全高が極めて犬となり、高塔
状となる。Regarding liquid air cooling equipment, all or part of the required ventilation force is obtained from the density difference due to the temperature difference between the air intake part and the exhaust part, so in a large capacity liquid air cooling equipment, the first As shown in the figure, its total height is extremely dog-like and tower-like.
容量の増大に対応してその全高は著しく大となる。同様
に所要建設面積も大であり、それ自体とその基礎の建設
費が犬である。As the capacity increases, the overall height increases significantly. Similarly, the area required for construction is large, and the construction costs for itself and its foundations are high.
通常、容量／θθθθｔ／ｈｒ程度の自然通風式冷水塔
にあっては全高が７００ｍ程度となり、円形の底面の直
径は２θｍ程度もあり、巨大設備である。一方、工場に
よっては不可欠の安全装置であるフレアスタックに関し
ても建設費について冷水塔と同様であり、更に放射され
る光線と熱と騒音により設備周辺乃至工場周辺に与える
悪影響について特に環境保全対策も必要であり、火炎を
可及的に高位置となるように設備するか、あるいは放出
廃棄する可燃流体を長大な配管を使用して工場敷地内の
空疎部分に設備されるフレアスタックに供給せざるを得
々い。Normally, a natural ventilation type cooling water tower with a capacity of about /θθθθt/hr has a total height of about 700 m and a circular bottom diameter of about 2θm, making it a huge facility. On the other hand, construction costs for flare stacks, which are an essential safety device for some factories, are similar to those for cooling water towers, and environmental protection measures are also required to prevent the negative effects of emitted light, heat, and noise on the surroundings of equipment and factories. Therefore, it is necessary to install the flame as high as possible, or to supply the flammable fluid to be released and disposed of to a flare stack installed in an airless part of the factory site using a long pipe. Good deal.
液体空冷装置とフレアスタックともに高塔建造物であり
、強固広大な基礎が必要であるため合計の設備所要面積
は相当に犬である。Both the liquid air cooling system and the flare stack are high-tower structures that require a strong and spacious foundation, so the total area required for the equipment is quite large.
発明者らは諸種の工場建設費の低減策を検討していたが
、液体空冷設備とフレアスタックを併有する工場に関し
ては、両設備を結合して構築することにより、従来の問
題点が全て解消されるのみならず、フレアスタックによ
り廃棄されるエネルギーが通風用動力として何ら特別の
機構を使用することなく完全に有効に利用されて両設備
の所要全高が減少する場合もあり、フレアスタックの従
来の架台は液体空冷装置の筒状体の利用により殆ど不用
となる場合もあり、所要面積の減少と周囲への光線など
の放散が遮断されることとにより１．両設備ともに設備
位置に関する制扼が、解消されるなどの利点が生じるこ
とを知った。The inventors were considering various ways to reduce factory construction costs, but when it came to factories that had both liquid air cooling equipment and flare stacks, by combining both equipment, all of the conventional problems were solved. Not only that, but also the energy wasted by the flare stack can be used completely effectively as ventilation power without using any special mechanism, reducing the required total height of both facilities. In some cases, the frame is almost unnecessary due to the use of the cylindrical body of the liquid air cooling device, and the required area is reduced and the radiation of light to the surroundings is blocked. I learned that both types of equipment have advantages such as eliminating restrictions regarding equipment location.
この発明は吸引通風用の上方へ延長した筒状体の下端に
大気吸入開口部があり、筒状体内下方部分に熱交換器が
設備され、筒状体内の上方部にフレアスタックの火炎の
光線が少くとも水平方向以下の下方向に関して筒状体上
方部壁面により遮断されるフレアスタックが設備され、
筒状体上端は大気に開放されていることを特徴とする液
体空冷装置である。This invention has an air suction opening at the lower end of the cylindrical body extending upward for suction ventilation, a heat exchanger is installed in the lower part of the cylindrical body, and the flame rays of the flare stack are provided in the upper part of the cylindrical body. is equipped with a flare stack that is blocked by the upper wall surface of the cylindrical body with respect to the downward direction below the horizontal direction,
This liquid air cooling device is characterized in that the upper end of the cylindrical body is open to the atmosphere.
この液体空冷装置の熱交換器は直接接触型、間接接触型
あるいは外表面に潅水される間接接触型のいずれであっ
てもよい。筒状体内下部周壁は濡れ締型熱交換器として
活用してもよい。この場合の儒れ壁はフレアスタックの
火炎による輻射から筒状体内上方部周壁を防護するため
濡れ壁とし流下水量を増加することなどにより容易に形
成させることもできる。The heat exchanger of this liquid-air cooling device may be of the direct contact type, indirect contact type, or indirect contact type in which the outer surface is sprinkled with water. The lower peripheral wall of the cylindrical body may be used as a wet-clamp heat exchanger. In this case, the collapsible wall can be easily formed by making it a wet wall to protect the upper circumferential wall of the cylindrical body from radiation from the flame of the flare stack and increasing the amount of flowing water.
フレアスタックの火炎によシ生じる上昇気流に誘引され
て増大される通風力のみによっても筒状体の全高は減少
されるが、所望により筒状体下端の大気吸入開口部へ押
込送風機を設備すれば更に減少される。Although the overall height of the cylindrical body can be reduced solely by the increased ventilation force induced by the upward airflow generated by the flames of the flare stack, if desired, a forced air blower can be installed at the atmosphere suction opening at the bottom end of the cylindrical body. It is further reduced.
この発明の液体空冷装置においてフレアスタックの火炎
による下方部の充填物への輻射の防護のために所望によ
シ熱交換器最上面に潅水用の溢流樋などの開放水面を配
設する。In the liquid air cooling system of the present invention, an open water surface such as an overflow gutter for irrigation is optionally provided on the top surface of the heat exchanger in order to protect the flame from the flare stack from radiating to the filling material in the lower part.
この輻射の防護手段によりフレアスタックの火炎位置は
低下させられ装置の全高の減少に寄与する。筒状体内壁
面のフレアスタックの火炎による輻射熱を受ける部分は
耐熱材料で被覆してその表面を高温に維持して接触する
気流を加熱して通風力の促進に寄与させてもよい。This radiation protection means lowers the flame position in the flare stack and contributes to reducing the overall height of the device. The portion of the wall surface of the cylindrical body that receives radiant heat from the flame of the flare stack may be coated with a heat-resistant material to maintain the surface at a high temperature to heat the airflow that comes into contact with it and contribute to promoting the ventilation force.
所望によシ火炎による輻射熱を受ける内壁面は輻射を上
方へ反射する斜面部分を有す名水平ヒダ状面としてもよ
い。フレアスタックの負荷が急激に増大する場合に対応
して、必要に応じて筒状体には充填物層または熱交換器
の上端と火炎の下端との間の壁面に内方へ、筒状体の内
外の間に一定差圧が生じた場合のみに開く安全扉が設備
される。強制通風を行わない場合には、この発明の装置
においてフレアスタックの火炎の総発熱量（Ｋｃａｌ／
）Ｉｒ） 対処理水量（＋７１１ｒ）はＳ４θθθ以下
とされ、筒状体内壁面に火炎輻射への防護手段がある場
合は上記の制限は／θｅθθθ以下に緩和される。筒状
体の上端開放面の内径（ｍ）対フレアスタック火炎放出
孔口径（ｍ）はり９以上とされ、火炎輻射の防護手段が
ある場合は２０以上とされる。充填物層または熱交換器
への輻射熱の影響を除去するためにフレアスタック火炎
放出孔と充填物層まだは熱交換器の上端との間の垂直距
離（ｍ）対フレアスタック火炎放出孔口径（ｍ）はり９
以上とされ、同様に火炎輻射の防護手段が充填物層まだ
は熱交換器の上端面にある場合には２θ以上とされる。If desired, the inner wall surface that receives radiant heat from the flame may be a horizontal pleated surface having sloped portions that reflect radiation upward. In response to a sudden increase in the load on the flare stack, the tube may be filled with a packing layer or inwardly on the wall between the upper end of the heat exchanger and the lower end of the flame, if necessary. A safety door is installed that opens only when a certain pressure difference occurs between the inside and outside of the When forced ventilation is not performed, the total calorific value (Kcal/
)Ir) The amount of treated water (+711r) is set to be less than S4θθθ, and if there is a means of protection against flame radiation on the wall surface of the cylindrical body, the above restriction is relaxed to /θeθθθ or less. The ratio of the inner diameter (m) of the upper open surface of the cylindrical body to the diameter (m) of the flare stack flame outlet hole is 9 or more, and 20 or more if there is a flame radiation protection means. To eliminate the effect of radiant heat on the packing layer or heat exchanger, the vertical distance (m) between the flare stack flame exit hole and the top of the packing layer or heat exchanger versus the flare stack flame exit hole diameter ( m) Beam 9
Similarly, when the flame radiation protection means is provided on the upper end surface of the heat exchanger, the angle is 2θ or more.
フレアスタックの火炎が発する光線と騒音を隠蔽するた
めに、充填物層もしくは火炎の高さｔ’＜ｍ＞と火炎放
出孔と熱交換器の上端との間の垂直距離Ｈｏ（ｍ）の和
の数値とフレアスタックの火炎の毎時総発熱量Ｑｏ（Ｋ
ｃａｌ／１ｌｒ）の数値は次の関係とされる。In order to hide the light and noise emitted by the flare stack flame, the sum of the filling layer or flame height t'<m> and the vertical distance Ho(m) between the flame outlet and the top of the heat exchanger is and the hourly total calorific value of the flare stack flame Qo (K
cal/1lr) has the following relationship.
Ｎｏ＋ｔ≧θθθ、２勺（社−
熱交換器上端面に火炎輻射に対する防護手段が設備され
る場合には次の関係とされる。No+t≧θθθ, 2 (internal) When a protection means against flame radiation is provided on the upper end surface of the heat exchanger, the following relationship shall be established.
））。＋ｔ≧θθθ／ｆ［Ｆ］
フレアスタックの火炎放出孔は筒状体内の上昇気流の偏
在を生ぜしめぬため、複数個配設する方式としてもよい
。)). +t≧θθθ/f[F] A plurality of flame discharge holes in the flare stack may be provided in order to prevent uneven distribution of upward airflow within the cylindrical body.
従来のフレアスタックにおいては火炎の燃焼状態の改善
は重要事でなく、燃焼中断の防止が最重快であったが、
この発明の装置においては火炎の燃焼状態も良Ｗｎヒし
筒状体中の上昇気流の増強に積極的に活用する。燃焼状
態の改善のため、所望により火炎放出孔に一次空気およ
び二次空気を合流させる機構が付加され、完全燃焼状態
とする。In conventional flare stacks, improving the combustion state of the flame was not an important issue, and preventing combustion interruption was the most important issue.
In the device of the present invention, the combustion state of the flame is also maintained in good condition and is actively utilized to enhance the upward air flow in the cylindrical body. In order to improve the combustion state, if desired, a mechanism is added to allow primary air and secondary air to merge into the flame discharge hole to achieve a complete combustion state.
次に図面によって、この発明の液体空冷装置を例示して
説明する。Next, the liquid air cooling device of the present invention will be illustrated and explained with reference to the drawings.
第λ 図は装置内中央にフレアスタックが設備された冷
水塔の縦断面図である。Fig. λ is a longitudinal sectional view of a cooling water tower equipped with a flare stack in the center of the apparatus.
筒状体／の上部中央に火炎放出孔コがあり、火炎の放射
即ち光線・熱線および音響が筒状体／により−Ｌ方向を
除いて隠蔽される。筒状体の下端に大気吸入開口部３が
あり、これによって流入する大気は充填物層グおよびそ
の下方の空間Ｓにおいて降下する被冷却水と接触した後
筒状体中を上昇し通過する。この大気の上昇通過は筒状
体中上部の火炎の燃焼ガスの上昇に誘引されて促進され
る。冷却水は底部４に滞留し、これより冷却水の使用位
置へ配水される。There is a flame discharge hole in the center of the upper part of the cylindrical body, and flame radiation, that is, light rays, heat rays, and sound are hidden by the cylindrical body except in the -L direction. At the lower end of the cylindrical body there is an atmospheric air intake opening 3, through which the incoming atmosphere comes into contact with the water to be cooled falling in the filling layer and the space S below it, and then rises and passes through the cylindrical body. This upward passage of the atmosphere is induced and promoted by the upward movement of combustion gas from the flame in the middle and upper part of the cylindrical body. Cooling water stays in the bottom 4, and is distributed from this to the location where the cooling water is used.
第３図は装置内の上部に複数の火炎放出孔２が配設され
、フレアスタックの支架が省略され。In FIG. 3, a plurality of flame discharge holes 2 are arranged in the upper part of the device, and the support for the flare stack is omitted.
筒状体内壁保護用の噴水管７が設備され、更に充填物層
グを火炎の輻射熱から防護する開放水面を用意する２段
配水樋ｇが設備され、安全扉りが配設された冷水塔の縦
断面を示している。A cooling water tower equipped with a fountain pipe 7 for protecting the wall of the cylindrical body, a two-stage water distribution gutter g providing an open water surface to protect the filling layer from the radiant heat of the flame, and a safety gate. A vertical cross section is shown.
この発明の液体空冷装置の採用による主要利点を列挙す
れば次の通りである。The main advantages of adopting the liquid air cooling device of the present invention are listed below.
構築費の節減、所要設置面積の縮小、立地条件の緩和、
環境保全、安全度の向」−１放出エネルギーの有効活用
および保守管理状態の向上などである。Reducing construction costs, reducing the required installation area, easing location conditions,
``Environmental conservation and safety improvement'' - 1 Effective use of released energy and improvement of maintenance management status.
第１図は従来の冷却塔の縦断面図を示す。
第一図および第３図は、この発明の液体空冷装置の実施
例の縦断面概略図である。
／ 筒状体 乙 底部
、２３ 火炎放出孔 ７ 噴水管３ 大気吸入
開口部 ｇ ２段配水樋ｑ 充填物層 ９
安全扉
Ｓ 空間
出願人 東洋エンジニアリング株式会社代理人 古
谷 馨第１図
第２図
第 ３ ［ン１
手続補正書（自発）
昭和５７年１０月１４日
特許庁長官 若杉和夫 殿
１ 事件の表示
轡願昭５６−１７５９９２号
２ 発明の名称
液体空冷装置
３ 補正をする者
事件との関係 特許出願人
東洋エンジニアリング株式会社
４代理人
東京都中央区日本橋横山町１の３中井ビル１、．１
（６３８９）弁理士 古 谷 馨１．１１
。
５ 補正の対象 ゛ ′・・（明
細書の発明の詳細な説明の欄及び図面６ 補正の内容
（１）明細書６頁１５行「充填物層もしくは」を削除
（１）同６頁１６行「孔と」の次に「充填物層や」を挿
入
（１）第２図を別紙の如く訂正
７ 添付書類の目録FIG. 1 shows a longitudinal sectional view of a conventional cooling tower. 1 and 3 are schematic longitudinal cross-sectional views of an embodiment of the liquid air cooling device of the present invention. / Cylindrical body B Bottom, 23 Flame discharge hole 7 Fountain pipe 3 Atmospheric intake opening g Two-stage water gutter q Filling layer 9
Safety Door S Space Applicant Toyo Engineering Co., Ltd. Agent Furu
Kaoru Tani Figure 1 Figure 2 3 [1] Procedural amendment (voluntary) October 14, 1980 Commissioner of the Japan Patent Office Kazuo Wakasugi 1 Indication of the case Request No. 175992/1982 2 Name of the invention Liquid air cooling device 3 Relationship with the case of the person making the amendment Patent applicant Toyo Engineering Co., Ltd. 4 Agents Nakai Building 1, 1-3 Nihonbashi Yokoyama-cho, Chuo-ku, Tokyo. 1 (6389) Patent Attorney Kaoru Furuya 1.11
. 5 Subject of amendment ゛ '...(Detailed description of the invention column in the specification and Drawing 6 Contents of amendment (1) Deletion of "filling layer or" on page 6, line 15 of the specification (1) Line 16, page 6 of the specification Insert “filling layer” after “hole” (1) Correct figure 2 as shown in attached sheet 7 List of attached documents
Claims (1)
口部があり、筒状体内下方部分に熱交換器が設備され、
筒状体内の上方部に火炎の光線が少くとも水平方向以下
の下方向に関して筒状体上方部壁面により遮断されるフ
レアスタックが設備され、筒状体上端は大気に開放され
ている゛ことを特徴とする液体空冷装置。There is an air suction opening at the lower end of the cylindrical body extending upward for suction ventilation, and a heat exchanger is installed in the lower part of the cylindrical body.
A flare stack is installed in the upper part of the cylindrical body so that the flame rays are blocked by the upper wall of the cylindrical body at least in the downward direction below the horizontal direction, and the upper end of the cylindrical body is open to the atmosphere. Characteristic liquid air cooling device.
Priority Applications (5)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP56173992A JPS5875688A (en) | 1981-10-30 | 1981-10-30 | Air-cooler for liquid |
| GB08231048A GB2108255A (en) | 1981-10-30 | 1982-10-29 | Air cooled liquid-cooling apparatus |
| IT24002/82A IT1153319B (en) | 1981-10-30 | 1982-10-29 | AIR COOLING SYSTEM FOR LIQUID COOLING |
| DE19823240172 DE3240172A1 (en) | 1981-10-30 | 1982-10-29 | AIR-COOLED, LIQUID-COOLING DEVICE |
| FR8218207A FR2515801A1 (en) | 1981-10-30 | 1982-10-29 | AIR COOLED LIQUID COOLING APPARATUS |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP56173992A JPS5875688A (en) | 1981-10-30 | 1981-10-30 | Air-cooler for liquid |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS5875688A true JPS5875688A (en) | 1983-05-07 |
Family
ID=15970754
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP56173992A Pending JPS5875688A (en) | 1981-10-30 | 1981-10-30 | Air-cooler for liquid |
Country Status (5)
| Country | Link |
|---|---|
| JP (1) | JPS5875688A (en) |
| DE (1) | DE3240172A1 (en) |
| FR (1) | FR2515801A1 (en) |
| GB (1) | GB2108255A (en) |
| IT (1) | IT1153319B (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4784810A (en) * | 1985-03-16 | 1988-11-15 | Saarbergwerke Aktiengesellschaft | Smoke gas exhaust by way of a cooling tower |
Family Cites Families (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE567196C (en) * | 1932-12-29 | J T Wulf | Cooling towers for cooling hot liquids through the direct action of the cooling air with a device for heating the exhaust air in the tower | |
| FR967440A (en) * | 1947-06-10 | 1950-11-03 | L G Mouchel And Partners | Improvements to water cooling towers |
| US3760869A (en) * | 1971-04-22 | 1973-09-25 | Gen Electric | Method of thermal exhaust and system therefor |
| AT323693B (en) * | 1971-10-04 | 1975-07-25 | Transelektro Magyar Villamossa | AIR-DRIVEN UNDERGROUND COOLING UNIT WITH NATURAL FLOATING |
| US3965672A (en) * | 1974-05-23 | 1976-06-29 | Westinghouse Electric Corporation | Wet cooling tower with plume eliminator |
| DE2453488C2 (en) * | 1974-11-12 | 1981-11-26 | Saarbergwerke AG, 6600 Saarbrücken | Process and system for discharging exhaust gases with low pollutant content into the atmosphere |
-
1981
- 1981-10-30 JP JP56173992A patent/JPS5875688A/en active Pending
-
1982
- 1982-10-29 IT IT24002/82A patent/IT1153319B/en active
- 1982-10-29 DE DE19823240172 patent/DE3240172A1/en not_active Withdrawn
- 1982-10-29 GB GB08231048A patent/GB2108255A/en not_active Withdrawn
- 1982-10-29 FR FR8218207A patent/FR2515801A1/en not_active Withdrawn
Also Published As
| Publication number | Publication date |
|---|---|
| GB2108255A (en) | 1983-05-11 |
| IT1153319B (en) | 1987-01-14 |
| IT8224002A0 (en) | 1982-10-29 |
| DE3240172A1 (en) | 1983-05-05 |
| FR2515801A1 (en) | 1983-05-06 |
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