JP2624756B2 - How to clean the culture tank - Google Patents
How to clean the culture tankInfo
- Publication number
- JP2624756B2 JP2624756B2 JP6957688A JP6957688A JP2624756B2 JP 2624756 B2 JP2624756 B2 JP 2624756B2 JP 6957688 A JP6957688 A JP 6957688A JP 6957688 A JP6957688 A JP 6957688A JP 2624756 B2 JP2624756 B2 JP 2624756B2
- Authority
- JP
- Japan
- Prior art keywords
- tank
- culture tank
- cleaning
- pump
- pressure
- 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 - Fee Related
Links
Landscapes
- Apparatus Associated With Microorganisms And Enzymes (AREA)
Description
【発明の詳細な説明】 〔産業上の利用分野〕 本発明は培養槽の洗浄方法に係り、特に排出時間を短
縮し、かつ、培養槽内を直接大気にさらさない洗浄を行
なうのに好適な培養槽の洗浄方法に関するものである。Description: TECHNICAL FIELD The present invention relates to a method for cleaning a culture tank, and more particularly to a method suitable for performing cleaning without shortening the discharge time and exposing the inside of the culture tank directly to the atmosphere. The present invention relates to a method for cleaning a culture tank.
従来の培養槽の洗浄方法は、焼浄液あるいは浄水を培
養槽内へ送り込み、槽内に設けられたスプレイボール等
により槽内面を洗浄した後、槽内を大気開放して洗浄液
を排出する方法、あるいは、培養槽内へ洗浄液を一定量
張り込み、撹拌しながら洗浄した後、大気開放して洗浄
液を排出するという方法が一般的であった。しかし、こ
れらの方法は、排出時間の短縮および培養槽内を直接大
気にさらさないという点については配慮されていなかっ
た。この種の洗浄方法には例えば特開昭58−74177号が
ある。In the conventional method of cleaning a culture tank, a baking solution or purified water is sent into the culture tank, and the inside of the tank is washed with a spray ball or the like provided in the tank. In general, a method of pouring a certain amount of a washing solution into a culture tank, washing while stirring, and then opening the atmosphere to discharge the washing solution has been common. However, these methods did not take into account the reduction of the discharge time and the fact that the inside of the culture tank was not directly exposed to the atmosphere. Japanese Patent Application Laid-Open No. 58-74177 discloses this type of cleaning method.
上記従来技術は、洗浄液の排出時間の短縮および培養
槽内を直接大気にさらさないという点については配慮が
されておらず、装置の効率的運用および培養槽の清浄化
の点で課題があった。The above prior art does not take into account the shortening of the drainage time of the washing solution and the fact that the inside of the culture tank is not directly exposed to the atmosphere, and has problems in efficient operation of the apparatus and cleaning of the culture tank. .
本発明の目的は、洗浄液を短時間で、かつ、培養槽内
を清浄に保ったまま排出することにある。An object of the present invention is to discharge a washing solution in a short time while keeping the culture tank clean.
上記目的は、洗浄液を排出するためのポンプ入口に温
度および圧力の検出器を取付け、入口配管より分岐した
配管に温度，圧力を演算した結果を入力して作動する自
動弁を設けて、ポンプ入口の圧力が、その温度における
蒸気圧より低くならないようにすると共に、ポンプ出口
配管を前記自動弁上流に設けたタンクに接続することに
より、達成される。The above object is to provide a temperature and pressure detector at a pump inlet for discharging a cleaning liquid, and to provide an automatic valve which operates by inputting a result of calculating a temperature and a pressure at a pipe branched from the inlet pipe, thereby providing a pump inlet. Is achieved by ensuring that the pressure of the pump does not fall below the vapor pressure at that temperature and by connecting the pump outlet line to a tank provided upstream of the automatic valve.
前記タンク下流の自動弁はポンプ入口で検出した洗浄
液の温度，圧力の演算した結果を入力して作動する。例
えば、流体の圧力がその温度における蒸気圧より低くな
った場合、自動弁を開けて上流のタンクにたまっている
洗浄液を再びポンプ入口に戻すことにより液体圧力を高
めるように働く。また、入口圧力がその温度における蒸
気圧より充分高い場合は自動弁は閉止し、ポンプ回転数
を制御することにより入口側を可能な限り負圧に導き、
培養槽内の洗浄液を急速排液するように働く。一方、ポ
ンプ出口側配管は前述のタンクに接続されており、液封
構造となっているため培養槽内が直接大気にさらされな
いようになっている。The automatic valve downstream of the tank is operated by inputting the calculation result of the temperature and pressure of the cleaning liquid detected at the pump inlet. For example, if the pressure of the fluid drops below the vapor pressure at that temperature, it acts to increase the liquid pressure by opening the automatic valve and returning the cleaning liquid stored in the upstream tank back to the pump inlet. Also, if the inlet pressure is sufficiently higher than the vapor pressure at that temperature, the automatic valve is closed and the inlet side is led to a negative pressure as much as possible by controlling the pump speed.
It works to quickly drain the washing solution in the culture tank. On the other hand, the pump outlet pipe is connected to the above-mentioned tank and has a liquid-sealed structure, so that the inside of the culture tank is not directly exposed to the atmosphere.
以下、本発明の一実施例を第１図により説明する。培
養槽１内を洗浄するための洗浄水または洗浄液は、洗浄
水タンク３または洗浄液タンク４に貯蔵されている。こ
れらの液は、洗浄液ポンプ６により培養槽１へエジェク
タ７による蒸気をかみ込みながら送り込まれ、培養槽１
内に設けられたスプレーボール８により槽内に分散され
槽内面を洗浄した後、循環ポンプ５により負圧に導かれ
て循環タンク２内に貯えられる。循環タンク２内の液面
がオーバーフロー管に達したとき、該管内を通って系外
へ排出される。このとき、循環ポンプ５入口側の圧力検
出器10の圧力が温度検出器９の温度における蒸気圧より
低い場合、自動弁12を開けて循環タンク２内の液を入口
側へ導入し、圧力を上昇させキャビテーションを防止す
る。また、入口側圧力が、その温度における蒸気圧より
充分高い場合は自動弁12は閉のままとし、ポンプ回転数
を制御することにより入口側を可能な限り負圧に導き、
洗浄液を急速排液する。これらの制御は演算器11により
行われる。一方、循環ポンプ５の出口配管は循環タンク
２へ接続されており、培養槽１に対し液封構造となって
いる。Hereinafter, an embodiment of the present invention will be described with reference to FIG. Washing water or a washing solution for washing the inside of the culture tank 1 is stored in a washing water tank 3 or a washing solution tank 4. These liquids are fed into the culture tank 1 by the cleaning liquid pump 6 while entraining the steam from the ejector 7, and are fed to the culture tank 1.
After being dispersed in the tank by a spray ball 8 provided therein and cleaning the inner surface of the tank, it is guided to a negative pressure by the circulation pump 5 and stored in the circulation tank 2. When the liquid level in the circulation tank 2 reaches the overflow pipe, it is discharged through the pipe to the outside of the system. At this time, when the pressure of the pressure detector 10 on the inlet side of the circulation pump 5 is lower than the vapor pressure at the temperature of the temperature detector 9, the automatic valve 12 is opened to introduce the liquid in the circulation tank 2 to the inlet side, and the pressure is reduced. Raise to prevent cavitation. If the inlet pressure is sufficiently higher than the vapor pressure at that temperature, the automatic valve 12 is kept closed, and the inlet is led to a negative pressure as much as possible by controlling the pump speed.
Drain the washing liquid quickly. These controls are performed by the arithmetic unit 11. On the other hand, the outlet pipe of the circulation pump 5 is connected to the circulation tank 2 and has a liquid-sealed structure with respect to the culture tank 1.
本実施例によれば、ポンプのキャビテーションを防止
しながら、培養槽内の洗浄液を急速排気できると共に、
培養槽内を大気にさらさず、清浄に保つことができる。According to the present embodiment, while preventing cavitation of the pump, the washing solution in the culture tank can be quickly exhausted,
The inside of the culture tank can be kept clean without being exposed to the atmosphere.
本発明によれば、培養槽内の洗浄液の排出時間を短縮
できると共に、培養槽内を直接大気にさらさず清浄度を
保つことができる。ADVANTAGE OF THE INVENTION According to this invention, while the discharge time of the washing | cleaning liquid in a culture tank can be shortened, the inside of a culture tank can be kept clean without directly exposing it to air.
第１図は本発明の一実施例の系統図を示す。 １……培養槽、２……循環タンク、３……洗浄水タン
ク、４……洗浄液タンク、５……循環ポンプ、６……洗
浄液ポンプ、９……温度検出器、10……圧力検出器、11
……演算器、12……自動弁FIG. 1 shows a system diagram of one embodiment of the present invention. 1 ... Culture tank, 2 ... Circulation tank, 3 ... Washing water tank, 4 ... Cleaning liquid tank, 5 ... Circulation pump, 6 ... Cleaning liquid pump, 9 ... Temperature detector, 10 ... Pressure detector , 11
…… Calculator, 12 …… Automatic valve
───────────────────────────────────────────────────── フロントページの続き (72)発明者 加藤 健児 山口県下松市大字東豊井794番地 株式 会社日立製作所笠戸工場内 (72)発明者 大見 政治 山口県下松市大字東豊井794番地 株式 会社日立製作所笠戸工場内 ──────────────────────────────────────────────────続 き Continuing on the front page (72) Inventor Kenji Kato 794, Higashi-Toyoi, Kazamatsu, Kudamatsu City, Yamaguchi Prefecture Inside the Kasado Plant of Hitachi, Ltd. (72) Politics Omi Politics, 794, Higashi Toyoi, Kudamatsu City, Yamaguchi Prefecture, Ltd. Inside the Hitachi Kasado Plant
Claims (1)
は洗浄水を貯蔵するタンク、これらの液の送液のための
ポンプおよび培養槽内の洗浄液を排出するための循環ポ
ンプを備えた洗浄系において、 前記循環ポンプの入口配管部で流体の温度および圧力を
検出し、前記入口配管部より分岐した配管に、その上流
に設置した循環タンク内液を自動供給するための自動弁
を備え、かつ、循環ポンプの出口側を前記タンクへ接続
し、前記流体の温度および圧力の検出結果により自動弁
を開閉することを特徴とする培養槽の洗浄方法。1. A cleaning system comprising a tank for storing a cleaning liquid or cleaning water for cleaning the inside of a culture tank, a pump for sending these liquids, and a circulation pump for discharging the cleaning liquid in the culture tank. In, detecting the temperature and pressure of the fluid at the inlet pipe portion of the circulating pump, the pipe branched from the inlet pipe portion, equipped with an automatic valve for automatically supplying the liquid in the circulating tank installed upstream thereof, and A method for cleaning a culture tank, wherein an outlet side of a circulation pump is connected to the tank, and an automatic valve is opened / closed based on a detection result of the temperature and pressure of the fluid.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP6957688A JP2624756B2 (en) | 1988-03-25 | 1988-03-25 | How to clean the culture tank |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP6957688A JP2624756B2 (en) | 1988-03-25 | 1988-03-25 | How to clean the culture tank |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH01243982A JPH01243982A (en) | 1989-09-28 |
| JP2624756B2 true JP2624756B2 (en) | 1997-06-25 |
Family
ID=13406758
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP6957688A Expired - Fee Related JP2624756B2 (en) | 1988-03-25 | 1988-03-25 | How to clean the culture tank |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JP2624756B2 (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP5593902B2 (en) * | 2010-07-15 | 2014-09-24 | 富士電機株式会社 | Heat pump steam generator |
-
1988
- 1988-03-25 JP JP6957688A patent/JP2624756B2/en not_active Expired - Fee Related
Also Published As
| Publication number | Publication date |
|---|---|
| JPH01243982A (en) | 1989-09-28 |
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