JPS6155032B2 - - Google Patents
Info
- Publication number
- JPS6155032B2 JPS6155032B2 JP56183804A JP18380481A JPS6155032B2 JP S6155032 B2 JPS6155032 B2 JP S6155032B2 JP 56183804 A JP56183804 A JP 56183804A JP 18380481 A JP18380481 A JP 18380481A JP S6155032 B2 JPS6155032 B2 JP S6155032B2
- Authority
- JP
- Japan
- Prior art keywords
- cooling
- air
- water
- cooling tower
- supplied
- 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
Landscapes
- Separation By Low-Temperature Treatments (AREA)
Description
【発明の詳細な説明】
本発明は、深冷法による空気分離装置の空気冷
却装置に係り、特に、空気冷却装置の製造コスト
を低減するのに好適な空気分離装置の空気冷却装
置に関するものである。DETAILED DESCRIPTION OF THE INVENTION The present invention relates to an air cooling device for an air separation device using a cryogenic method, and particularly to an air cooling device for an air separation device suitable for reducing the manufacturing cost of the air cooling device. be.
深冷法による空気分離装置に供給される原料空
気の前処理を行う装置、特に、吸着塔に送給され
る原料空気を洗浄し、かつ、冷却する空気冷却装
置の従来公知例を第１図により説明する。 FIG. 1 shows a conventionally known example of a device for pre-treating the feed air supplied to the air separation device using the cryogenic method, in particular, an air cooling device for cleaning and cooling the feed air fed to the adsorption tower. This is explained by:
原料空気圧縮機（図示省略）によつて圧力約６
Kg/cm2G、温度約100℃に圧縮された原料空気は、
導管１１を通じて水洗冷却塔１へ供給され、約25
℃の水により冷却、洗浄される。水洗冷却塔１内
には多数の棚段（図示省略）が設けられており、
冷却水は導管１５を通つて水洗冷却塔１の上部か
ら供給され水洗冷却塔１の底部より抜き出され
る。抜き出された冷却水は、約45℃で導管１６を
通り蒸発冷却塔２の上部に供給される。蒸発冷却
塔２は多数の棚段（図示省略）が設けられてお
り、冷却水は別途空気分離装置（図示省略）から
不純窒素導管１７を通じて蒸発冷却塔２に供給さ
れる約４℃の不純窒素によつて約25℃まで冷却さ
れ蒸発冷却塔２の底部より取り出され導管１４を
通つて水ポンプ６に供給される。この水ポンプ６
によつて昇圧された冷却水は、再び導管１５によ
つて水洗冷却塔１に供給される。一方、水洗冷却
塔１で冷却された原料空気は導管１２を通り冷却
器３の頂部に供給され、導管１３を通つて吸着塔
５に供給される。原料空気を吸着により前処理す
るためには、一般的に原料空気を約５℃まで冷却
する必要があり冷却器３によつて約25℃から約５
℃まで冷凍装置４により供給されるフレオン冷媒
と熱交換して冷却される。 The pressure is approximately 6 by the raw material air compressor (not shown).
The raw air compressed to Kg/cm 2 G and a temperature of approximately 100℃ is
It is supplied to the water washing cooling tower 1 through a conduit 11, and approximately 25
Cooled and washed with water at ℃. A large number of shelves (not shown) are provided in the water washing cooling tower 1.
Cooling water is supplied from the upper part of the water washing cooling tower 1 through the conduit 15 and extracted from the bottom of the water washing cooling tower 1. The extracted cooling water is supplied to the upper part of the evaporative cooling tower 2 through a conduit 16 at about 45°C. The evaporative cooling tower 2 is provided with a large number of trays (not shown), and the cooling water is impure nitrogen at a temperature of about 4°C, which is supplied to the evaporative cooling tower 2 from a separate air separation device (not shown) through an impure nitrogen conduit 17. The water is cooled down to about 25° C. by water and taken out from the bottom of the evaporative cooling tower 2 and supplied to the water pump 6 through a conduit 14. This water pump 6
The cooling water pressurized by the cooling water is again supplied to the water washing cooling tower 1 through the conduit 15. On the other hand, the raw air cooled in the water washing cooling tower 1 is supplied to the top of the cooler 3 through a conduit 12, and then supplied to the adsorption tower 5 through a conduit 13. In order to pre-treat raw air by adsorption, it is generally necessary to cool the raw air to about 5°C, and the cooler 3 cools the raw air from about 25°C to about 5°C.
℃ through heat exchange with Freon refrigerant supplied by the refrigeration device 4.
このように原料空気をまず水洗冷却塔で約25℃
に冷却し、その後、冷却器で約25℃から約５℃ま
で冷凍装置からのフレオン冷媒と熱交換させ冷却
する空気冷却装置では、特に、冷却器で冷却され
る流体が常温の空気であり、また、伝熱効率が良
くないので伝熱面積も大きくとる必要があるため
冷却器が大型化し空気冷却装置の製造コストが増
大するという欠点があつた。 In this way, the raw air is first washed with water in a cooling tower at approximately 25°C.
In particular, in an air cooling system that cools the fluid to about 25°C to about 5°C in a cooler by exchanging heat with Freon refrigerant from a refrigeration system, the fluid cooled by the cooler is air at room temperature, Furthermore, since the heat transfer efficiency is not good, it is necessary to have a large heat transfer area, which increases the size of the cooler and increases the manufacturing cost of the air cooling device.
本発明は、上記欠点の除去を目的としたもの
で、冷却器で冷凍装置からのフレオン冷媒と熱交
換させ冷却した冷却水を水洗冷却塔に供給すると
共に、水洗冷却塔で原料空気を冷却後の冷却水を
蒸発冷却塔に供給し蒸発冷却塔で不純窒素により
冷却後、冷却器に供給することにより、原料空気
を水洗冷却塔でのみ冷却させる空気分離装置の空
気冷却装置を提供するものである。 The purpose of the present invention is to eliminate the above-mentioned drawbacks.The present invention is aimed at eliminating the above-mentioned drawbacks, and supplies cooling water that has been cooled by exchanging heat with Freon refrigerant from a refrigeration system in a cooler to a water washing cooling tower, and after cooling raw air in the water washing cooling tower. The present invention provides an air cooling device for an air separation device in which raw air is cooled only in a water washing cooling tower by supplying cooling water to an evaporative cooling tower, cooling it with impure nitrogen in the evaporative cooling tower, and then supplying it to a cooler. be.
本発明の一実施例を第２図により説明する。原
料空気圧縮機（図示省略）によつて圧力約６Kg/
cm2Ｇ、温度約100℃に圧縮された原料空気は、導
管１１を通じて水洗冷却塔１へ供給される。一
方、水洗冷却塔１の上部からは冷却器３で冷凍装
置４により供給されるフレオン冷媒と熱交換し約
３℃まで冷却された冷却水が導管２１を通じて供
給される。水洗冷却塔１には多数の棚段（図示省
略）が内設されており、原料空気は約３℃の冷却
水と向流接触することにより約５℃まで冷却さ
れ、導管１８を通じて吸着塔５に供給される。一
方、原料空気を冷却後約45℃に昇温した冷却水は
水洗冷却塔１の底部から抜き出され導管１６を通
じて蒸発冷却塔２の上部に供給される。蒸発冷却
塔２には多数の棚段（図示省略）が内設されてお
り、別途空気分離装置（図示省略）から不純窒素
導管１７により供給される約４℃の不純窒素によ
つて約25℃まで冷却され蒸発冷却塔２の底部より
抜き出され導管１９を通り水ポンプ６に供給され
昇圧された後、導管２１を通じて冷却器３に供給
され約３℃まで冷却後導管２１を通つて再び水洗
冷却塔１の上部に供給される。 An embodiment of the present invention will be described with reference to FIG. The pressure is approximately 6 kg/ by a raw material air compressor (not shown).
Raw air compressed to cm 2 G and a temperature of about 100° C. is supplied to the water washing cooling tower 1 through a conduit 11 . On the other hand, from the upper part of the water washing cooling tower 1, cooling water that has been cooled to about 3° C. by exchanging heat with the Freon refrigerant supplied by the refrigeration device 4 in the cooler 3 is supplied through a conduit 21. The water washing cooling tower 1 is equipped with a large number of trays (not shown), and the raw air is cooled to about 5°C by countercurrent contact with cooling water at about 3°C, and is passed through the conduit 18 to the adsorption tower 5. supplied to On the other hand, cooling water whose temperature has been raised to about 45° C. after cooling the feed air is extracted from the bottom of the water washing cooling tower 1 and supplied to the upper part of the evaporative cooling tower 2 through a conduit 16. The evaporative cooling tower 2 is equipped with a large number of trays (not shown), and is heated to about 25°C by impure nitrogen at about 4°C, which is supplied from a separate air separation device (not shown) through an impure nitrogen conduit 17. It is then extracted from the bottom of the evaporative cooling tower 2, passed through a conduit 19, supplied to the water pump 6, and increased in pressure, and then supplied to the cooler 3 through a conduit 21, cooled to about 3°C, and then passed through the conduit 21 for water washing again. It is supplied to the upper part of the cooling tower 1.
このように水洗冷却塔に供給される冷却水を蒸
発冷却塔、冷却器で順次段階的に冷却し、吸着塔
に供給される原料空気の温度を水洗冷却塔でのみ
所定の温度に冷却した場合は、特に、冷却器で冷
却される流体が常温の空気ではなく伝熱効率が優
れた水であるので、冷却器の伝熱面積を小さくす
ることができる。 In this way, the cooling water supplied to the water washing cooling tower is cooled step by step in the evaporative cooling tower and the cooler, and the temperature of the raw air supplied to the adsorption tower is cooled to a predetermined temperature only in the water washing cooling tower. In particular, since the fluid cooled by the cooler is not air at room temperature but water, which has excellent heat transfer efficiency, the heat transfer area of the cooler can be reduced.
本発明は、以上説明したように、空気分離装置
の空気冷却装置において、冷却水を冷却するよう
に冷却器を設置し、冷却水を蒸発冷却塔、冷却水
冷却器で順次段階的に冷却すると共に、原料空気
を水洗冷却塔でのみ冷却するようにしたので、冷
却器が小型化でき空気冷却装置の製造コストを低
減できる効果がある。 As explained above, in the air cooling device of an air separation device, the present invention installs a cooler to cool cooling water, and cools the cooling water in stages in an evaporative cooling tower and a cooling water cooler. In addition, since the raw air is cooled only in the water washing cooling tower, the cooler can be downsized and the manufacturing cost of the air cooling device can be reduced.
第１図は、従来の空気分離装置の原料空気の前
処理装置を説明する系統図、第２図は、本発明の
一実施例を説明する空気分離装置の原料空気の前
処理装置の系統図である。
１……水洗冷却塔、２……蒸発冷却塔、３……
冷却器、４……冷凍装置、５……吸着塔、６……
水ポンプ、１１，１６，１８から２１……導管、
１７……不純窒素導管。
FIG. 1 is a system diagram illustrating a conventional pretreatment device for feed air in an air separation device, and FIG. 2 is a system diagram illustrating a pretreatment device for feed air in an air separation device illustrating an embodiment of the present invention. It is. 1... Water washing cooling tower, 2... Evaporative cooling tower, 3...
Cooler, 4... Refrigeration device, 5... Adsorption tower, 6...
Water pump, 11, 16, 18 to 21... conduit,
17... Impure nitrogen conduit.
Claims (1)
水で冷却する水洗冷却塔と、原料空気の冷却後に
前記水洗冷却塔から抜き出された前記冷却水を空
気分離装置から供給される不純窒素で冷却する蒸
発冷却塔と、不純窒素で冷却され前記蒸発冷却塔
から抜き出された前記冷却水を前記水洗冷却塔に
供給前に更に冷却する冷凍機付の冷却器とを具備
したことを特徴とする空気分離装置の空気冷却装
置。1. A water washing cooling tower that cools the raw material air compressed by the raw material air compressor with cooling water, and a water washing cooling tower that cools the raw material air compressed by the raw material air compressor with cooling water, and the cooling water extracted from the water washing cooling tower after cooling the raw material air with impure nitrogen supplied from an air separation device. It is characterized by comprising an evaporative cooling tower for cooling, and a cooler equipped with a refrigerator for further cooling the cooling water cooled with impure nitrogen and extracted from the evaporative cooling tower before being supplied to the water washing cooling tower. Air cooling device for air separation equipment.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP18380481A JPS5886376A (en) | 1981-11-18 | 1981-11-18 | Air cooler for air separator |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP18380481A JPS5886376A (en) | 1981-11-18 | 1981-11-18 | Air cooler for air separator |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS5886376A JPS5886376A (en) | 1983-05-23 |
| JPS6155032B2 true JPS6155032B2 (en) | 1986-11-26 |
Family
ID=16142183
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP18380481A Granted JPS5886376A (en) | 1981-11-18 | 1981-11-18 | Air cooler for air separator |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS5886376A (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS6410039U (en) * | 1987-06-22 | 1989-01-19 | ||
| JPS6431715A (en) * | 1987-07-27 | 1989-02-02 | Teisan Seiyaku Kk | Warming type application agent containing beta-blocker |
| JPS6462155A (en) * | 1987-08-31 | 1989-03-08 | Tadashi Ijima | Exothermic body |
| JPH0638944U (en) * | 1992-10-30 | 1994-05-24 | 株式会社三菱油化ビーシーエル | Instant hot compress |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH0665949B2 (en) * | 1985-04-24 | 1994-08-24 | 株式会社日立製作所 | Raw air cooling method and device |
| JP6090223B2 (en) * | 2014-04-02 | 2017-03-08 | Ｊｆｅスチール株式会社 | Control method and program for supply amount of cooling nitrogen |
Family Cites Families (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS50117248A (en) * | 1974-02-27 | 1975-09-13 | ||
| JPS5363298A (en) * | 1976-11-19 | 1978-06-06 | Nippon Steel Corp | Oxygen producting apparatus using heat pipes |
| JPS5553681A (en) * | 1978-10-18 | 1980-04-19 | Nippon Steel Corp | Total low pressure type air separator |
-
1981
- 1981-11-18 JP JP18380481A patent/JPS5886376A/en active Granted
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS6410039U (en) * | 1987-06-22 | 1989-01-19 | ||
| JPS6431715A (en) * | 1987-07-27 | 1989-02-02 | Teisan Seiyaku Kk | Warming type application agent containing beta-blocker |
| JPS6462155A (en) * | 1987-08-31 | 1989-03-08 | Tadashi Ijima | Exothermic body |
| JPH0638944U (en) * | 1992-10-30 | 1994-05-24 | 株式会社三菱油化ビーシーエル | Instant hot compress |
Also Published As
| Publication number | Publication date |
|---|---|
| JPS5886376A (en) | 1983-05-23 |
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