JP2508588Y2 - Membrane separation device - Google Patents
Membrane separation deviceInfo
- Publication number
- JP2508588Y2 JP2508588Y2 JP8208089U JP8208089U JP2508588Y2 JP 2508588 Y2 JP2508588 Y2 JP 2508588Y2 JP 8208089 U JP8208089 U JP 8208089U JP 8208089 U JP8208089 U JP 8208089U JP 2508588 Y2 JP2508588 Y2 JP 2508588Y2
- Authority
- JP
- Japan
- Prior art keywords
- pressure
- membrane separation
- tank
- vacuum
- vacuum tank
- 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
Description
【考案の詳細な説明】 〔産業上の利用分野〕 本考案は膜分離装置に係り、特に真空ポンプにより真
空タンクを減圧し、その真空圧により膜から透過水を
得、真空タンクが満杯になったときに自給式引抜きポン
プでその透過水を取り出す膜分離装置に関する。[Detailed Description of the Invention] [Industrial field of application] The present invention relates to a membrane separation device, in particular, a vacuum tank is decompressed by a vacuum pump, and permeated water is obtained from the membrane by the vacuum pressure to fill the vacuum tank. The present invention relates to a membrane separation device that takes out permeated water with a self-contained drawing pump.
従来、この種の膜分離装置にあっては、第４図に示す
ように、曝気槽１の底部に、空気配管２を介してブロア
３と接続された散気装置４が配設されており、該散気装
置４を介してブロア３からの空気が曝気槽１内に送入さ
れるようになっている。また、該曝気槽１の上部には膜
分離手段５が配置されており、該膜分離手段５は第５図
に詳細に示すように、軸６に支持されている。該軸６に
は駆動装置７からの駆動力がスプロケツトホイール８、
チエーン９を介して伝達され、膜分離手段５と共に回転
し得るようになっている。また、膜分離手段５からの透
過水10は真空タンク11内に吸引されるようになってい
る。Conventionally, in this type of membrane separation apparatus, as shown in FIG. 4, an air diffuser 4 connected to a blower 3 via an air pipe 2 is arranged at the bottom of the aeration tank 1. The air from the blower 3 is sent into the aeration tank 1 through the air diffuser 4. Further, a membrane separating means 5 is arranged above the aeration tank 1, and the membrane separating means 5 is supported by a shaft 6 as shown in detail in FIG. A driving force from a driving device 7 is applied to the shaft 6 by a sprocket wheel 8,
It is transmitted through the chain 9 and can rotate together with the membrane separating means 5. The permeated water 10 from the membrane separating means 5 is sucked into the vacuum tank 11.
すなわち、従来この種の装置は真空ポンプ12により手
動の圧力調整弁13を有する真空タンク11を減圧し、その
真空圧により膜分離手段５から透過水10を得、真空タン
ク11が満杯になったときに引抜きポンプ14でその透過水
10を得る構成となっている。That is, in the conventional apparatus of this type, the vacuum tank 11 having the manual pressure adjusting valve 13 was depressurized by the vacuum pump 12, the permeated water 10 was obtained from the membrane separating means 5 by the vacuum pressure, and the vacuum tank 11 became full. Sometimes withdrawal pump 14 its permeate
It is configured to get 10.
しかしながら、従来のこのような構成にあっては、真
空タンク11内の真空圧は真空タンク11の水位により圧力
が変化し、真空タンク11に設置された手動の圧力調整弁
13では、一定圧に調整できず、膜分離手段５からの透過
水10の流量を一定に制御できないという欠点があった。However, in such a conventional configuration, the vacuum pressure in the vacuum tank 11 changes depending on the water level in the vacuum tank 11, and a manual pressure adjusting valve installed in the vacuum tank 11 is used.
No. 13 had a drawback that the pressure could not be adjusted to a constant pressure and the flow rate of the permeated water 10 from the membrane separation means 5 could not be controlled to be constant.
本考案の目的は、上述した欠点に鑑みなされたもの
で、膜分離手段からの透過水量を一定に制御できるよう
にした膜分離装置を提供するにある。The present invention has been made in view of the above-mentioned drawbacks, and an object of the present invention is to provide a membrane separation device capable of controlling the amount of permeated water from the membrane separation means to be constant.
前記目的を達成するために本考案は、密閉槽内に膜分
離手段を備えると共に、該膜分離手段に、真空ポンプお
よび引抜きポンプを有する真空タンクを連通し、該分離
手段に真空圧をかけるよう構成した膜分離装置におい
て、真空タンクに圧力検知手段と電磁弁とを設け、該圧
力検知手段で検知された圧力の大きさに応じて電磁弁の
開閉を行い真空タンク内の圧力を一定範囲内に保持する
よう構成したものである。In order to achieve the above-mentioned object, the present invention comprises a membrane separating means in a closed tank, and a vacuum tank having a vacuum pump and a drawing pump is connected to the membrane separating means to apply a vacuum pressure to the separating means. In the configured membrane separation device, the vacuum tank is provided with a pressure detection means and a solenoid valve, and the solenoid valve is opened / closed according to the magnitude of the pressure detected by the pressure detection means to keep the pressure in the vacuum tank within a certain range. It is configured to hold.
このように本考案にあっては、圧力検知手段で検知さ
れた圧力に応じて電磁弁の開閉を行い、真空タンク内の
圧力をある一定範囲内に調整するようにしてるので、膜
分離手段に作用する負圧をほぼ一定に保てる。したがっ
て、該膜分離手段からの透過水量を一定に制御できる。As described above, in the present invention, the solenoid valve is opened / closed according to the pressure detected by the pressure detection means to adjust the pressure in the vacuum tank within a certain range. The negative pressure acting can be kept almost constant. Therefore, the amount of permeated water from the membrane separation means can be controlled to be constant.
以下、図に示す実施例を用いて本考案の詳細を説明す
る。Hereinafter, the details of the present invention will be described with reference to the embodiments shown in the drawings.
第１図は本考案に係る膜分離装置の一実施例を示す概
略構成図である。曝気槽15の底部にはブロア16と接続さ
れた空気配管17および散気装置18が配設されており、該
散気装置18を介してブロア16からの空気が曝気槽15内に
送入されるようになっている。また、該曝気槽15の底部
には循環配管19を介して密閉槽20が接続されており、該
密閉槽20内には膜分離手段21が配置されている。該膜分
離手段21は、第２図に詳細に示すように、軸22に支持さ
れていると共に、該軸22には駆動装置23からの駆動力が
スプロケツトホイール24、チエーン25を介して伝達され
るよう構成されている。FIG. 1 is a schematic configuration diagram showing an embodiment of the membrane separation device according to the present invention. An air pipe 17 connected to the blower 16 and an air diffuser 18 are provided at the bottom of the aeration tank 15, and the air from the blower 16 is fed into the aeration tank 15 via the air diffuser 18. It has become so. Further, a closed tank 20 is connected to the bottom of the aeration tank 15 via a circulation pipe 19, and a membrane separation means 21 is arranged in the closed tank 20. As shown in detail in FIG. 2, the membrane separating means 21 is supported by a shaft 22, and the driving force from a driving device 23 is transmitted to the shaft 22 through a sprocket wheel 24 and a chain 25. Is configured.
また、前記循環配管19の途中には循環加圧ポンプ29が
配設されており、かつ前記密閉槽20は循環配管27を介し
て前記曝気槽15の上部に連通されている。したがって、
曝気槽15からの汚泥を循環加圧ポンプ26により循環配管
19を通して密閉槽20内に送り、更に濃縮汚泥は循環配管
27より曝気槽15に戻るようになっている。なお、密閉槽
20の上部には圧力調整弁20aが配設されている。Further, a circulation pressurizing pump 29 is arranged in the middle of the circulation pipe 19, and the closed tank 20 is connected to the upper part of the aeration tank 15 via a circulation pipe 27. Therefore,
Circulation piping for circulation of sludge from aeration tank 15 by circulation pressurizing pump 26
It is sent to the closed tank 20 through 19 and the concentrated sludge is circulated.
From 27, it returns to the aeration tank 15. In addition, closed tank
A pressure regulating valve 20a is arranged above 20.
一方、膜分離手段21からの透過水28は真空ポンプ29に
より真空タンク30内に吸引されるようになっている。す
なわち、該真空タンク30には、上部に真空ポンプ29が接
続されていると共に底部に自給式引抜きポンプ31が接続
されている。また、真空タンク30の上部にはマイクロコ
ンピユータ32から信号が送られてくる電磁弁33が取り付
けられており、かつ真空タンク30の内側上部には圧力セ
ンサ34が配置されている。なお、該圧力センサ34からの
信号はマイクロコンピユータ32に送られるようになって
いる。更に、前記真空タンク30の内側の上、下所定位置
には上限レベルセンサ35、下限レベルセンサ36が配置さ
れており、これらのレベルセンサ35、36からの信号は前
記マイクロコンピユータ32に送られるようになってい
る。なお、真空ポンプ29及び引抜きポンプ31には該マイ
クロコンピユータ32からの信号が送られるようになって
いる。On the other hand, the permeated water 28 from the membrane separating means 21 is sucked into the vacuum tank 30 by the vacuum pump 29. That is, to the vacuum tank 30, a vacuum pump 29 is connected to the upper part and a self-contained extraction pump 31 is connected to the bottom part. Further, an electromagnetic valve 33 to which a signal is sent from the micro computer 32 is attached to the upper part of the vacuum tank 30, and a pressure sensor 34 is arranged on the upper part inside the vacuum tank 30. The signal from the pressure sensor 34 is sent to the microcomputer 32. Further, an upper limit level sensor 35 and a lower limit level sensor 36 are arranged at upper and lower predetermined positions inside the vacuum tank 30, and signals from these level sensors 35 and 36 are sent to the microcomputer 32. It has become. A signal from the microcomputer 32 is sent to the vacuum pump 29 and the extraction pump 31.
次に、以上のように構成された膜分離装置の動作を説
明する。まず、真空ポンプ29を稼働させ、真空タンク30
内の負圧力を圧力センサ34と電磁弁33で設定値幅内に調
整し、膜分離手段21からの透過水を該真空タンク30に吸
い出す。すなわち、第３図に示すように真空タンク30内
の圧力が上限以上の場合は電磁弁33を開き、大気を導入
して真空タンク30内の圧力を下げる。一方下限以下の場
合は電磁弁33を閉じて、真空タンク30内の負圧力を設定
値幅内に調整する。そして、該真空タンク30内の透過水
が増加し、上限レベルセンサ35が上限を検知してONにな
ったら真空ポンプ29を停止し、引抜きポンプ31を運転
し、真空タンク30内の透過水37を透過水貯槽（図示せ
ず）に引き抜く。Next, the operation of the membrane separation device configured as above will be described. First, operate the vacuum pump 29 and then the vacuum tank 30.
The negative pressure inside is adjusted within the set value range by the pressure sensor 34 and the solenoid valve 33, and the permeated water from the membrane separation means 21 is sucked into the vacuum tank 30. That is, as shown in FIG. 3, when the pressure in the vacuum tank 30 is equal to or higher than the upper limit, the solenoid valve 33 is opened and the atmosphere is introduced to reduce the pressure in the vacuum tank 30. On the other hand, when the value is below the lower limit, the solenoid valve 33 is closed and the negative pressure in the vacuum tank 30 is adjusted within the set value range. Then, when the permeated water in the vacuum tank 30 increases and the upper limit level sensor 35 detects the upper limit and turns on, the vacuum pump 29 is stopped, the extraction pump 31 is operated, and the permeated water 37 in the vacuum tank 30 is stopped. To a permeate storage tank (not shown).
一方、真空タンク30内の透過水が低レベルになり、下
限レベルセンサ36がオフになったら前記引抜きポンプ31
を停止し、再び真空ポンプ29を運転する。この運転を繰
り返し実施しても膜分離手段21への負圧力を一定幅で保
持できるため、膜分離手段21からの透過水量を一定に制
御することが可能となる。On the other hand, when the permeated water in the vacuum tank 30 becomes low level and the lower limit level sensor 36 is turned off, the extraction pump 31
Then, the vacuum pump 29 is operated again. Even if this operation is repeatedly performed, the negative pressure to the membrane separation means 21 can be maintained within a constant width, so that the amount of permeated water from the membrane separation means 21 can be controlled to be constant.
以上説明したように本考案によれば、真空タンク内に
圧力検知手段と電磁弁とを設け、該圧力検知手段で検知
された圧力に応じて電磁弁の開閉を行い真空タンク内の
圧力を一定範囲内に保持するようにして、従来のような
真空タンク内の大幅な圧力変化を解消した構成としたの
で、従来に比べて膜分離手段からの透過水量を一定に制
御できるという優れた効果を奏する。As described above, according to the present invention, the pressure detection means and the solenoid valve are provided in the vacuum tank, and the solenoid valve is opened / closed according to the pressure detected by the pressure detection means to keep the pressure in the vacuum tank constant. By keeping the pressure within the range and eliminating the large pressure change in the vacuum tank as in the conventional case, it has an excellent effect that the amount of permeated water from the membrane separation means can be controlled to be constant compared with the conventional case. Play.
第１図は本考案に係る膜分離装置の一実施例を示す概略
構成図、第２図は密閉槽の断面図、第３図は本考案装置
の動作を説明するためのフローチヤート、第４図は従来
装置の一例を示す概略構成図、第５図は第４図の装置の
横断面図である。 15……曝気槽、20……密閉槽、21……膜分離手段、28…
…透過水、29……真空ポンプ、30……真空タンク、31…
…引抜きポンプ、33……電磁弁、34……圧力センサ、35
……上限レベルセンサ、36……下限レベルセンサ。FIG. 1 is a schematic configuration diagram showing an embodiment of the membrane separation device according to the present invention, FIG. 2 is a sectional view of a closed tank, FIG. 3 is a flow chart for explaining the operation of the device of the present invention, and FIG. FIG. 5 is a schematic configuration diagram showing an example of a conventional device, and FIG. 5 is a transverse sectional view of the device of FIG. 15 ... Aeration tank, 20 ... Closed tank, 21 ... Membrane separation means, 28 ...
… Permeate, 29 …… Vacuum pump, 30 …… Vacuum tank, 31…
… Extraction pump, 33 …… Solenoid valve, 34 …… Pressure sensor, 35
...... High limit level sensor, 36 ...... Lower limit level sensor.
Claims (1)
膜分離手段に、真空ポンプおよび引抜きポンプを有する
真空タンクを連通し、該分離手段に真空圧をかけるよう
構成した膜分離装置において、真空タンクに圧力検知手
段と電磁弁とを設け、該圧力検知手段で検知された圧力
の大きさに応じて電磁弁の開閉を行い真空タンク内の圧
力を一定範囲内に保持するよう構成したことを特徴とす
る膜分離装置。1. A membrane separation apparatus comprising a membrane separation means in a closed tank, a vacuum tank having a vacuum pump and a drawing pump connected to the membrane separation means, and a vacuum pressure is applied to the separation means. The vacuum tank is provided with pressure detection means and a solenoid valve, and the solenoid valve is opened and closed according to the magnitude of the pressure detected by the pressure detection means to maintain the pressure in the vacuum tank within a certain range. A membrane separation device characterized by the above.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP8208089U JP2508588Y2 (en) | 1989-07-12 | 1989-07-12 | Membrane separation device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP8208089U JP2508588Y2 (en) | 1989-07-12 | 1989-07-12 | Membrane separation device |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH0322524U JPH0322524U (en) | 1991-03-08 |
| JP2508588Y2 true JP2508588Y2 (en) | 1996-08-28 |
Family
ID=31628579
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP8208089U Expired - Lifetime JP2508588Y2 (en) | 1989-07-12 | 1989-07-12 | Membrane separation device |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JP2508588Y2 (en) |
-
1989
- 1989-07-12 JP JP8208089U patent/JP2508588Y2/en not_active Expired - Lifetime
Non-Patent Citations (1)
| Title |
|---|
| 日本機械学会、環境工学総合シンポジウム’９１講演論文集、（１９９１）奥野、川尻、大熊、増田、ｐ．２６４−２６８ |
Also Published As
| Publication number | Publication date |
|---|---|
| JPH0322524U (en) | 1991-03-08 |
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