JPH0612805Y2 - Membrane deaerator - Google Patents
Membrane deaeratorInfo
- Publication number
- JPH0612805Y2 JPH0612805Y2 JP1989118793U JP11879389U JPH0612805Y2 JP H0612805 Y2 JPH0612805 Y2 JP H0612805Y2 JP 1989118793 U JP1989118793 U JP 1989118793U JP 11879389 U JP11879389 U JP 11879389U JP H0612805 Y2 JPH0612805 Y2 JP H0612805Y2
- Authority
- JP
- Japan
- Prior art keywords
- water
- water supply
- vacuum pump
- pipe
- heat exchanger
- 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 - Lifetime
Links
Landscapes
- Separation Using Semi-Permeable Membranes (AREA)
- Degasification And Air Bubble Elimination (AREA)
Description
【考案の詳細な説明】 〈産業上の利用分野〉 この考案は、耐圧容器内に膜モジュールを収容し、該膜
モジュールにより容器内を給水部と、減圧部に劃し、減
圧部に水封式真空ポンプを、給水部の入口に原水の給水
管を夫々接続し、給水部の出口から脱気水を取出すよう
にした膜脱気装置に関する。[Detailed Description of the Invention] <Industrial field of application> This invention stores a membrane module in a pressure-resistant container, and the membrane module separates the interior of the container into a water supply section and a decompression section. The present invention relates to a membrane deaerator in which raw water feed pipes are connected to the inlet of a water supply unit and deaerated water is taken out from the outlet of the water supply unit.
〈従来の技術〉 膜モジュールを収容した耐圧容器の内部を真空状態にす
るのに水封式真空ポンプを使用すると、ポンプには運転
中、常時、シール水を供給することが必要である。<Prior Art> When a water-sealed vacuum pump is used to bring the inside of a pressure-resistant container containing a membrane module into a vacuum state, it is necessary to constantly supply seal water to the pump during operation.
従来は真空ポンプにシール水を一過式に供給して排水す
るか、シール水の循環ラインを接続し、真空ポンプに供
給して排水されるシール水を循環使用するかしている。Conventionally, the seal water is temporarily supplied to the vacuum pump for draining, or the seal water circulation line is connected and the seal water supplied to the vacuum pump and drained is circulated and used.
〈考案が解決しようとする課題〉 真空ポンプに供給するシール水は３／min以上と意外
に多く、一過式に使用する場合は垂れ流しになるので適
当な排水場所がない所、シール水の確保が困難な所には
装置を設備できない。<Problems to be solved by the invention> The amount of sealing water supplied to the vacuum pump is unexpectedly high at 3 / min or more, and when used temporarily, it will run off, so there is no suitable drainage place, securing sealing water The equipment cannot be installed in a difficult place.
又、循環ラインによってシール水を循環使用する場合
は、真空ポンプ中を通過する際に加熱され、水温は次第
に上昇する。そしてシール水の温度が上昇すると、水蒸
気圧の上昇により真空ポンプの能力が著しく低下し、耐
圧容器内に生じさせる真空度が下がって脱気能力が著し
く低下する。これを防止するため循環ラインに大きな貯
槽やクーラーユニットを設け、シール水を循環過程で冷
却する必要があり、設備費が嵩む。When the seal water is circulated through the circulation line, it is heated when passing through the vacuum pump, and the water temperature gradually rises. When the temperature of the sealing water rises, the steam pressure rises, the capacity of the vacuum pump is remarkably reduced, the degree of vacuum generated in the pressure vessel is lowered, and the deaeration ability is remarkably lowered. In order to prevent this, it is necessary to provide a large storage tank or cooler unit in the circulation line to cool the seal water in the circulation process, which increases equipment costs.
〈課題を解決するための手段〉 本考案は、上記従来の課題を解消するために開発された
のであって、その手段は、耐圧容器内に膜モジュールを
収容し、該膜モジュールにより容器内を給水部と、減圧
部に劃し、減圧部に水封式真空ポンプを、給水部の入口
に原水の給水管を夫々接続し、給水部の出口から脱気水
を取出すようにした膜脱気装置において、 上記水封式真空ポンプに、熱交換器を有するシール水の
循環ラインを設け、前記原水の給水管を上記熱交換器の
冷却管を介して前記耐圧容器の給水部の入口に接続した
ことを特徴とする。<Means for Solving the Problems> The present invention was developed to solve the above-mentioned conventional problems, and means for accommodating a membrane module in a pressure-resistant container and allowing the inside of the container to be covered by the membrane module. Membrane degassing that connects the water supply part and the decompression part, connects a water-sealed vacuum pump to the decompression part, and connects the raw water supply pipe to the inlet of the water supply part to take out degassed water from the outlet of the water supply part. In the apparatus, the water-sealed vacuum pump is provided with a circulation line for sealing water having a heat exchanger, and the raw water supply pipe is connected to the inlet of the water supply section of the pressure vessel via the cooling pipe of the heat exchanger. It is characterized by having done.
〈実施例〉 図示の実施例において、１は耐圧容器、２は耐圧容器中
に収容されて容器の内部を給水部1aと、減圧部1bとに区
劃する脱気膜を有する膜モジュール、３は配管４で耐圧
容器の減圧部1bに接続した水封式真空ポンプ、５は脱気
水にするための原水を耐圧容器の給水部の入口に供給す
るための給水ポンプ６を含む給水管、７は上記給水部1a
の出口から脱気水を取出すための取出管を示す。<Example> In the illustrated example, 1 is a pressure-resistant container, 2 is a pressure-resistant container, and a membrane module having a degassing membrane that divides the inside of the container into a water supply section 1a and a decompression section 1b, 3 Is a water-sealed vacuum pump connected to the decompression section 1b of the pressure vessel with a pipe 4, and 5 is a water supply pipe including a water supply pump 6 for supplying raw water for deaeration to the inlet of the water supply section of the pressure vessel. 7 is the water supply section 1a
The extraction pipe for taking out deaerated water from the outlet of is shown.
耐圧容器は、給水部の出口と、給水部の入口とが連管８
で直列に接続した前段１−Ｉと後段１−IIの二つからな
り、真空ポンプ３は各耐圧容器の減圧部に接続し、給水
管５は前段の耐圧容器１−Ｉの給水部の入口に接続し、
取出管７は後段の耐圧容器１−IIの給水部の出口に接続
している。In the pressure vessel, the outlet of the water supply section and the inlet of the water supply section are connected by a pipe 8.
The first stage 1-I and the second stage 1-II are connected in series with each other. The vacuum pump 3 is connected to the decompression section of each pressure vessel, and the water supply pipe 5 is the inlet of the water supply section of the pressure vessel 1-I of the preceding stage. Connect to
The take-out pipe 7 is connected to the outlet of the water supply part of the pressure vessel 1-II in the latter stage.
真空ポンプ３にはシール水を循環使用するためシール水
の循環ライン９が接続してあり、この循環ラインの途中
には小形の貯槽10と、熱交換器11とが設けてある。A circulation line 9 for sealing water is connected to the vacuum pump 3 in order to circulate the sealing water, and a small storage tank 10 and a heat exchanger 11 are provided in the middle of this circulation line.
そして、給水ポンプ６からの給水管５の途中は、上記熱
交換器中に配管した冷却管12の入口端に接続し、フィル
タ13を備え、前段の耐圧容器の給水部に向かう給水管５
の残部は上記冷却管12の出口端に接続してある。The water supply pipe 5 from the water supply pump 6 is connected to the inlet end of the cooling pipe 12 arranged in the heat exchanger, and is provided with a filter 13 and extends toward the water supply portion of the pressure vessel at the preceding stage.
The remaining part of is connected to the outlet end of the cooling pipe 12.
これによりポンプ３，６を運転し、真空ポンプ３で耐圧
容器中に負圧を生起させ、耐圧容器の給水部に供給され
た原水中の水蒸気ガスを含む気体を膜モジュールを透過
して減圧部、真空ポンプに吸引し、こうして原水を脱気
水に処理し、脱気水を取出管７から取出すことができ
る。As a result, the pumps 3 and 6 are operated, a negative pressure is generated in the pressure resistant container by the vacuum pump 3, and a gas containing water vapor gas in the raw water supplied to the water supply part of the pressure resistant container permeates the membrane module to reduce the pressure. It is possible to draw the deaerated water from the take-out pipe 7 by sucking it into a vacuum pump, thus treating the raw water into deaerated water.
そして、真空ポンプの運転中、シール水は循環ライン９
を循環し、循環ラインに設けられた熱交換器11を通過す
る際はその冷却管12中を流れる原水によって冷却され
る。During the operation of the vacuum pump, the sealing water is circulated in the circulation line 9
When it passes through the heat exchanger 11 provided in the circulation line, it is cooled by the raw water flowing in the cooling pipe 12.
〈考案の効果〉 従って本考案によれば、水封式真空ポンプのシール水は
熱交換器を通って循環する際に、脱気処理するために耐
圧容器に供給する原水と熱交換して冷却されるので、循
環使用しても温度は上昇せず、このため真空ポンプの能
力は低下しないと共に、原水は、シール水と熱交換器で
熱交換して加温され、逆に水温は上昇する。しかし、一
般に水中の溶存気体量は水温の上昇で減少するため、水
温が上昇した原水を耐圧容器の給水部に供給し、脱気効
果を向上することができる。<Effect of device> Therefore, according to the present invention, when the seal water of the water-sealed vacuum pump circulates through the heat exchanger, it cools by exchanging heat with the raw water supplied to the pressure vessel for degassing. Therefore, the temperature does not rise even if it is circulated and used, and therefore the capacity of the vacuum pump does not decrease, and the raw water is heated by exchanging heat with the seal water in the heat exchanger, and conversely the water temperature rises. . However, since the amount of dissolved gas in water generally decreases as the water temperature rises, it is possible to supply raw water whose water temperature has risen to the water supply section of the pressure vessel to improve the degassing effect.
このように、本考案は真空ポンプのシール水を脱気する
ための原水で冷却することによる脱気用真空度の向上
と、これに伴う原水の加温での脱気効果の向上を同時に
達成できる一石二鳥の効果を有する。In this way, the present invention simultaneously improves the degree of vacuum for degassing by cooling the seal water of the vacuum pump with raw water for degassing, and at the same time improves the degassing effect by heating the raw water. Has the effect of two birds with one stone.
図面は本考案による脱気装置の一実施例のフローチャー
トを示す。 図中、１は耐圧容器、1aはその給水部、1bは減圧部、２
は膜モジュール、３は真空ポンプ、５は給水管、７は脱
気水の取出管、９はシール水の循環ライン、11は熱交換
器、12はその冷却管を示す。The drawing shows a flow chart of one embodiment of the deaerator according to the present invention. In the figure, 1 is a pressure vessel, 1a is a water supply section, 1b is a decompression section, 2
Is a membrane module, 3 is a vacuum pump, 5 is a water supply pipe, 7 is a degassed water extraction pipe, 9 is a seal water circulation line, 11 is a heat exchanger, and 12 is its cooling pipe.
Claims (1)
モジュールにより容器内を給水部と、減圧部に劃し、減
圧部に水封式真空ポンプを、給水部の入口に原水の給水
管を夫々接続し、給水部の出口から脱気水を取出すよう
にした膜脱気装置において、 上記水封式真空ポンプに、熱交換器を有するシール水の
循環ラインを設け、前記原水の給水管を上記熱交換器の
冷却管を介して前記耐圧容器の給水部の入口に接続した
ことを特徴とする膜脱気装置。1. A membrane module is housed in a pressure-resistant container, and the interior of the container is divided into a water supply section and a decompression section by the membrane module. In the membrane degassing device in which the pipes are connected to each other and the degassed water is taken out from the outlet of the water supply part, the water sealing vacuum pump is provided with a circulation line of sealing water having a heat exchanger, and the raw water is supplied. A membrane degassing device, wherein a pipe is connected to an inlet of a water supply section of the pressure vessel via a cooling pipe of the heat exchanger.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1989118793U JPH0612805Y2 (en) | 1989-10-12 | 1989-10-12 | Membrane deaerator |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1989118793U JPH0612805Y2 (en) | 1989-10-12 | 1989-10-12 | Membrane deaerator |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH0359004U JPH0359004U (en) | 1991-06-10 |
| JPH0612805Y2 true JPH0612805Y2 (en) | 1994-04-06 |
Family
ID=31666943
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP1989118793U Expired - Lifetime JPH0612805Y2 (en) | 1989-10-12 | 1989-10-12 | Membrane deaerator |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH0612805Y2 (en) |
Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP3342107B2 (en) * | 1993-06-17 | 2002-11-05 | 三菱重工業株式会社 | Degassing device |
| JP3617468B2 (en) * | 2001-04-12 | 2005-02-02 | 栗田工業株式会社 | Decarbonation method and pure water production method |
| JP2004160379A (en) * | 2002-11-14 | 2004-06-10 | Miura Co Ltd | Pure water production apparatus |
Family Cites Families (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS62183808A (en) * | 1986-02-07 | 1987-08-12 | Nippon Kokan Kk <Nkk> | Device for liquid separation from raw liquid |
| JPH01215312A (en) * | 1988-02-22 | 1989-08-29 | Takuma Co Ltd | Method for removing dissolved gas in liquid |
-
1989
- 1989-10-12 JP JP1989118793U patent/JPH0612805Y2/en not_active Expired - Lifetime
Also Published As
| Publication number | Publication date |
|---|---|
| JPH0359004U (en) | 1991-06-10 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| EXPY | Cancellation because of completion of term |