JPH085206A - Cooler of gas containing water vapor - Google Patents
Cooler of gas containing water vaporInfo
- Publication number
- JPH085206A JPH085206A JP14280394A JP14280394A JPH085206A JP H085206 A JPH085206 A JP H085206A JP 14280394 A JP14280394 A JP 14280394A JP 14280394 A JP14280394 A JP 14280394A JP H085206 A JPH085206 A JP H085206A
- Authority
- JP
- Japan
- Prior art keywords
- stage cooling
- final
- cooling unit
- cooler
- cooling section
- 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
Landscapes
- Central Air Conditioning (AREA)
Abstract
Description
【０００１】[0001]
【産業上の利用分野】本発明は、通常の空気のような、
水蒸気を含む気体の冷却器に関するものである。BACKGROUND OF THE INVENTION The present invention relates to ordinary air,
The present invention relates to a gas cooler containing water vapor.
【０００２】[0002]
【従来の技術】従来から、航空機用エンジンの地上試験
のため、−２０℃〜−３０℃の上空空気温と同じ温度の
低温空気を必要とすることがあり、またガスタービンの
高効率化のために同様な低温空気を必要とすることがあ
る。そして、従来のエンジンテストセルに供給される低
温空気を得るための空気冷却器は、たとえば、図３に示
すような構成からなっている。2. Description of the Related Art Conventionally, low temperature air having the same temperature as the air temperature of -20 ° C. to -30 ° C. may be required for ground test of an aircraft engine, and it is necessary to improve the efficiency of a gas turbine. Therefore, similar cold air may be required. An air cooler for obtaining low-temperature air supplied to the conventional engine test cell has, for example, a configuration shown in FIG.
【０００３】図３において、２１は空気入口、２２はハ
イフィンチューブなどからなる初段冷却部、２３は凝固
防止用不凍液スプレー、２４はハイフィンチューブなど
からなる終段冷却部、２５は不凍液排除用ミストエリミ
ネータ、２６は加熱部、２７は空気出口である。In FIG. 3, reference numeral 21 is an air inlet, 22 is a first-stage cooling section composed of high fin tubes, 23 is an antifreeze spray for preventing coagulation, 24 is a final cooling section composed of high fin tubes, and 25 is a mist eliminator for antifreeze removal. , 26 are heating units, and 27 is an air outlet.
【０００４】すなわち、図示されていない空気圧縮機で
圧縮されて圧力が１平方センチメートル当り６〜７キロ
グラム、温度が約２００℃になった空気は、空気入口２
１から導入され、水またはエチレングリコールなどの冷
媒による初段冷却部２２で５℃まで冷却されたのち、エ
チレングリコールなどの冷媒による終段冷却部２４で、
一たん、マイナス３０℃まで冷却され、最終的に加熱部
２６でマイナス２０℃に加熱され、空気出口２７から図
示されていないエンジンテストセルに供給される。That is, air compressed by an air compressor (not shown) to have a pressure of 6 to 7 kilograms per square centimeter and a temperature of about 200 ° C. is the air inlet 2
1 is introduced and cooled to 5 ° C. in the first stage cooling unit 22 with a coolant such as water or ethylene glycol, and then in the final stage cooling unit 24 with a coolant such as ethylene glycol,
Once cooled to −30 ° C., finally heated to −20 ° C. by the heating section 26 and supplied from an air outlet 27 to an engine test cell (not shown).
【０００５】また前記初段冷却部２２と終段冷却部２４
の間には凝固防止用不凍液スプレー２３を設けて凝縮水
滴の氷結を少なくし、また不凍液排除用ミストエリミネ
ータ２５では不凍液の回収を図っている。The first stage cooling unit 22 and the final stage cooling unit 24 are also provided.
An antifreeze spray 23 for preventing coagulation is provided between them to reduce freezing of condensed water droplets, and the mist eliminator 25 for removing antifreeze aims to recover the antifreeze.
【０００６】[0006]
【発明が解決しようとする課題】しかしながら、図３に
示した空気冷却器においては、初段冷却部２２で空気が
水分の露点以下にまで冷却されると、空気中の水分の凝
縮が起こり、凝縮水滴が下流に飛散し、下流の冷却部２
４のハイフィンに接触した凝縮水滴はそこで氷結し、伝
熱の劣化、圧損の増加および流路の閉そくが早まるとい
う問題点があった。そこで、これを低減させるために、
終段冷却部２４のハイフィンにスプレーによる不凍液を
増加させることが考えられるが、その不凍液の流量と濃
度を過分に増やす必要があり、経費の著しい増加となる
という問題点が発生する。However, in the air cooler shown in FIG. 3, when the air is cooled to below the moisture dew point in the first-stage cooling unit 22, the moisture in the air is condensed and condensed. Water droplets are scattered downstream, and the cooling unit 2 at the downstream
Condensed water droplets contacting the high fins of No. 4 were frozen there, and there was a problem that heat transfer was deteriorated, pressure loss was increased, and flow path clogging was accelerated. Therefore, in order to reduce this,
It is conceivable to increase the antifreeze liquid by spraying on the high fins of the final stage cooling unit 24, but it is necessary to excessively increase the flow rate and concentration of the antifreeze liquid, which causes a problem of a significant increase in cost.
【０００７】本発明は、上記のような問題点を解決しよ
うとするものである。すなわち、本発明は下流の終段冷
却部の着霜量を低減することができて、伝熱の劣化、圧
損の増加、流路の閉そくがなく、かつ、不凍液のスプレ
ーの増加もなく、経費の低減を図ることができる水蒸気
を含む気体の冷却器を提供することを目的とするもので
ある。The present invention is intended to solve the above problems. That is, the present invention can reduce the amount of frost in the downstream final-stage cooling unit, deterioration of heat transfer, increase in pressure loss, no blockage of the flow path, and no increase in spray of antifreeze liquid, and cost reduction. It is an object of the present invention to provide a cooler for a gas containing water vapor that can reduce the above.
【０００８】[0008]
【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、水蒸気を含む気体を露点以下にして０℃
には至らない温度に冷却する初段冷却部と、この下流に
設けられて該初段冷却部からの気体を０℃以下に冷却す
る終段冷却部とを有する気体冷却器において、前記初段
冷却部と終段冷却部の間に、該初段冷却部で発生した凝
縮水が該終段冷却部へ届くのを防止する手段を有するも
のとした。In order to achieve the above object, the present invention sets a gas containing water vapor at a dew point below 0 ° C.
In the gas cooler having a first-stage cooling unit that cools to a temperature that does not reach the temperature and a final-stage cooling unit that is provided downstream of the first-stage cooling unit and cools gas from the first-stage cooling unit to 0 ° C. or less, A means for preventing condensed water generated in the first-stage cooling section from reaching the final-stage cooling section is provided between the final-stage cooling sections.
【０００９】[0009]
【作用】本発明によれば、水蒸気を含む気体を露点以下
にして０℃には至らない温度に冷却する初段冷却部と、
この下流に設けられて該初段冷却部からの気体を０℃以
下に冷却する終段冷却部とを有する気体冷却器におい
て、前記初段冷却部と終段冷却部の間に、該初段冷却部
で発生した凝縮水が該終段冷却部へ届くのを防止する手
段を有するので、０℃以下に冷却する終段冷却部には初
段冷却部で発生した凝縮水が到達しなくなり、したがっ
て、前記終段冷却部での着霜や氷結がいちじるしく減少
し、着霜や氷結を防止するための不凍液のスプレーの流
量と濃度を低減できる。According to the present invention, a first-stage cooling section for cooling a gas containing water vapor to a temperature below 0 ° C. below the dew point,
In a gas cooler having a final stage cooling unit provided downstream of the first stage cooling unit for cooling the gas from the first stage cooling unit to 0 ° C. or lower, the first stage cooling unit is provided between the first stage cooling unit and the final stage cooling unit. Since it has a means for preventing the generated condensed water from reaching the final stage cooling unit, the condensed water generated in the first stage cooling unit does not reach the final stage cooling unit that cools to 0 ° C. or less, and thus the final stage Frost and freezing in the stage cooling unit are significantly reduced, and the flow rate and concentration of the antifreeze spray for preventing frost and freezing can be reduced.
【００１０】[0010]
【実施例】図１は本発明の第１実施例を示した断面側面
図である。図１において、１は空気入口、２はハイフィ
ンチューブなどからなる初段冷却部、３は凝固防止用不
凍液スプレー、４はハイフィンチューブなどからなる終
段冷却部、５は加熱部、６は不凍液排除用ミストエリミ
ネータ、７は空気出口、８は前記初段冷却部２で発生し
た凝縮水が終段冷却部４へ届くのを防止する手段として
の金網またはルーバなどからなる凝縮液排除用ミストエ
リミネータである。1 is a sectional side view showing a first embodiment of the present invention. In FIG. 1, 1 is an air inlet, 2 is a first-stage cooling unit including a high fin tube, 3 is an antifreeze spray for preventing solidification, 4 is a final cooling unit including a high fin tube, 5 is a heating unit, and 6 is an antifreeze liquid removing unit. A mist eliminator, 7 is an air outlet, and 8 is a mist eliminator for condensate removal, which includes a wire net or a louver as a means for preventing the condensed water generated in the first-stage cooling section 2 from reaching the final-stage cooling section 4.
【００１１】図１に示すように構成された水蒸気を含む
気体の冷却器においては、図示されていない空気圧縮機
で圧縮されて圧力が１平方センチメートル当り６〜７キ
ログラム、温度が約２００℃になった空気は、空気入口
１から導入され、水またはエチレングリコールなどの冷
媒による初段冷却部２で５℃（０℃より高い温度）まで
冷却されたのち、エチレングリコールなどの冷媒による
終段冷却部４で、一たん、マイナス３０℃まで冷却さ
れ、最終的に加熱部５でマイナス２０℃に加熱され、出
口７から図示されていないエンジンテストセルに供給さ
れる。In the cooler for a gas containing water vapor, which is constructed as shown in FIG. 1, the pressure is 6 to 7 kilograms per square centimeter and the temperature is about 200 ° C. when compressed by an air compressor (not shown). The air introduced from the air inlet 1 is cooled to 5 ° C. (a temperature higher than 0 ° C.) in the first-stage cooling unit 2 with a coolant such as water or ethylene glycol, and then the final-stage cooling unit 4 with a coolant such as ethylene glycol. Then, the temperature is once cooled to -30 ° C, finally heated to -20 ° C by the heating unit 5, and supplied from the outlet 7 to an engine test cell (not shown).
【００１２】また不凍液排除用ミストエリミネータ６で
は不凍液の回収がなされる。前記凝縮液排除用ミストエ
リミネータ８では初段冷却部２で発生した凝縮水を捕捉
して終段冷却部４へ届くことを防止する。したがって、
終段冷却部４での着霜量が殆んどなく、該終段冷却部４
では伝熱の劣化、圧損の増加、流路の閉そくがなく、か
つ、凝縮防止用不凍液スプレー３からの不凍液の流量や
濃度を増加させる必要もなくなる。The antifreeze solution is recovered by the mist eliminator 6 for removing the antifreeze solution. The condensate removing mist eliminator 8 prevents the condensed water generated in the first stage cooling unit 2 from reaching the final stage cooling unit 4. Therefore,
There is almost no frost formation in the final cooling unit 4,
Therefore, there is no deterioration of heat transfer, increase of pressure loss, clogging of the flow path, and there is no need to increase the flow rate or concentration of the antifreeze liquid from the condensation preventing antifreeze liquid spray 3.
【００１３】なお場合によっては、加熱部５を省略する
場合もある。In some cases, the heating section 5 may be omitted.
【００１４】図２は本発明の第２実施例を示した断面側
面図である。図２において、符号１から７までは、図１
の場合と同様である。そして、９は凝縮液溜部、１０は
ドレン排出口、１１はドレン排出弁、１２はドレン排出
管である。すなわち、この第２実施例では、初段冷却部
２と終段冷却部４の間に凝縮液排除用ミストエリミネー
タ（図１では符号８）を設けることなく、その代わり、
該冷却部２と４の間の距離Ｌを充分長くして、初段冷却
部２で発生した凝縮水が終段冷却部４へ届かないように
している。FIG. 2 is a sectional side view showing a second embodiment of the present invention. In FIG. 2, reference numerals 1 to 7 indicate those in FIG.
Is the same as Further, 9 is a condensate reservoir, 10 is a drain discharge port, 11 is a drain discharge valve, and 12 is a drain discharge pipe. That is, in the second embodiment, the mist eliminator for removing the condensate (8 in FIG. 1) is not provided between the first-stage cooling unit 2 and the final-stage cooling unit 4, but instead,
The distance L between the cooling units 2 and 4 is made sufficiently long so that the condensed water generated in the first-stage cooling unit 2 does not reach the final-stage cooling unit 4.
【００１５】こにようにしても、図１の第１実施例と同
様な効果が得られる。Even in this case, the same effect as that of the first embodiment shown in FIG. 1 can be obtained.
【００１６】[0016]
【発明の効果】以上説明したように、本発明によれば、
水蒸気を含む気体を露点以下にして０℃には至らない温
度に冷却する初段冷却部と、この下流に設けられて該初
段冷却部からの気体を０℃以下に冷却する終段冷却部と
を有する気体冷却器において、前記初段冷却部と終段冷
却部の間に、該初段冷却部で発生した凝縮水が該終段冷
却部へ届くのを防止する手段を有するので、０℃以下に
冷却する終段冷却部には初段冷却部で発生した凝縮水が
到達しなくなり、前記終段冷却部での着霜や氷結が生じ
なくなる。As described above, according to the present invention,
A first-stage cooling unit that cools the gas containing water vapor to a temperature that does not reach 0 ° C. below the dew point, and a final-stage cooling unit that is provided downstream of this and cools the gas from the first-stage cooling unit to 0 ° C. or less. The gas cooler has a means for preventing condensed water generated in the first-stage cooling section from reaching the final-stage cooling section between the first-stage cooling section and the final-stage cooling section, so that the gas cooler is cooled to 0 ° C. or lower. The condensed water generated in the first-stage cooling unit does not reach the final-stage cooling unit, and frosting or icing does not occur in the final-stage cooling unit.
【００１７】したがって、本発明によれば、前記終段冷
却部での伝熱の劣化、圧損の増加、流路の閉そくがなく
なり、かつ、凝固防止用不凍液の増加の必要もなくな
り、経費を著しく低減させることが可能となる。Therefore, according to the present invention, deterioration of heat transfer in the final cooling section, increase in pressure loss, blockage of the flow path are eliminated, and it is not necessary to increase the antifreezing liquid for preventing coagulation. It becomes possible to reduce.
【図１】本発明の第１実施例を示した断面側面図であ
る。FIG. 1 is a sectional side view showing a first embodiment of the present invention.
【図２】本発明の第２実施例を示した断面側面図であ
る。FIG. 2 is a sectional side view showing a second embodiment of the present invention.
【図３】従来の技術の一例を示した断面側面図である。FIG. 3 is a sectional side view showing an example of a conventional technique.
２ 初段冷却部 ４ 終段冷却部 ８ 凝縮液排除用ミストエリミネータ ９ 凝縮液溜部 １０ ドレン排出口 Ｌ 距離 2 First stage cooling unit 4 Final stage cooling unit 8 Condensate removal mist eliminator 9 Condensate reservoir 10 Drain discharge port L Distance
Claims (3)
には至らない温度に冷却する初段冷却部と、この下流に
設けられて該初段冷却部からの気体を０℃以下に冷却す
る終段冷却部とを有する気体冷却器において、前記初段
冷却部と終段冷却部の間に、該初段冷却部で発生した凝
縮水が該終段冷却部へ届くのを防止する手段を有するこ
とを特徴とする、水蒸気を含む気体の冷却器。1. A gas containing water vapor is set to 0 ° C. or below by setting the dew point below the dew point.
In the gas cooler having a first-stage cooling unit that cools to a temperature that does not reach the temperature and a final-stage cooling unit that is provided downstream of the first-stage cooling unit and cools gas from the first-stage cooling unit to 0 ° C. or less, A cooler for a gas containing water vapor, comprising means for preventing condensed water generated in the first-stage cooling section from reaching the last-stage cooling section between the final-stage cooling sections.
部へ届くのを防止する手段として、凝縮液排除用ミスト
エリミネータが設けられている請求項１記載の水蒸気を
含む気体の冷却器。2. A steam-containing gas cooler according to claim 1, wherein a mist eliminator for removing condensed liquid is provided as a means for preventing condensed water generated in the first-stage cooling section from reaching the final-stage cooling section. .
部へ届くのを防止する手段として、前記初段冷却部と終
段冷却部との間には充分な距離を有し、かつ、その間に
凝縮液溜部とドレン排出口とを有する請求項１記載の水
蒸気を含む気体の冷却器。3. A means for preventing condensed water generated in the first-stage cooling section from reaching the final-stage cooling section, having a sufficient distance between the first-stage cooling section and the final-stage cooling section, and The gas cooler containing steam according to claim 1, further comprising a condensate reservoir and a drain outlet.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP14280394A JPH085206A (en) | 1994-06-24 | 1994-06-24 | Cooler of gas containing water vapor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP14280394A JPH085206A (en) | 1994-06-24 | 1994-06-24 | Cooler of gas containing water vapor |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPH085206A true JPH085206A (en) | 1996-01-12 |
Family
ID=15324004
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP14280394A Pending JPH085206A (en) | 1994-06-24 | 1994-06-24 | Cooler of gas containing water vapor |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH085206A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US7121101B2 (en) * | 2004-05-28 | 2006-10-17 | Merritt Thomas D | Multipurpose adiabatic potable water production apparatus and method |
| JP2017116238A (en) * | 2015-12-25 | 2017-06-29 | 株式会社神戸製鋼所 | Gas cooler |
-
1994
- 1994-06-24 JP JP14280394A patent/JPH085206A/en active Pending
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US7121101B2 (en) * | 2004-05-28 | 2006-10-17 | Merritt Thomas D | Multipurpose adiabatic potable water production apparatus and method |
| JP2017116238A (en) * | 2015-12-25 | 2017-06-29 | 株式会社神戸製鋼所 | Gas cooler |
| WO2017110346A1 (en) * | 2015-12-25 | 2017-06-29 | 株式会社神戸製鋼所 | Gas cooler |
| KR20180095069A (en) * | 2015-12-25 | 2018-08-24 | 가부시키가이샤 고베 세이코쇼 | Gas cooler |
| US11371787B2 (en) | 2015-12-25 | 2022-06-28 | Kobelco Compressors Corporation | Gas cooler |
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