JP3654985B2 - Quantitative pump device for merger processing septic tank - Google Patents

Quantitative pump device for merger processing septic tank Download PDF

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Publication number
JP3654985B2
JP3654985B2 JP35169795A JP35169795A JP3654985B2 JP 3654985 B2 JP3654985 B2 JP 3654985B2 JP 35169795 A JP35169795 A JP 35169795A JP 35169795 A JP35169795 A JP 35169795A JP 3654985 B2 JP3654985 B2 JP 3654985B2
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JP
Japan
Prior art keywords
tank
rotation speed
pump motor
pump
water
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
Application number
JP35169795A
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Japanese (ja)
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JPH09136094A (en
Inventor
誠 仲田
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Tsurumi Manufacturing Co Ltd
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Tsurumi Manufacturing Co Ltd
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Filing date
Publication date
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Priority to JP35169795A priority Critical patent/JP3654985B2/en
Publication of JPH09136094A publication Critical patent/JPH09136094A/en
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Description

【0001】
【発明の技術分野】
本発明は、合併処理浄化槽用定量性ポンプ装置に関するものである。
【0002】
【従来技術とその問題点】
周知のように、合併処理浄化槽において高効率な浄化処理を実現するためには、処理槽へ常に定量的に汚水を送り、処理槽の負荷を一定に保たせることが不可欠な要件とされている。
【0003】
合併処理浄化槽では処理槽の前段に、家庭から排出された汚水を一旦貯留するための流量調整槽等と呼ばれる槽を設け、この槽から水中ポンプ等で計量槽を介して処理槽へ送水しているが、上記流量調整槽は家庭からの排水量の変動により水位が常に変動し、その水位変動に伴ないポンプの送水量も大幅に変動するため、処理槽へ定量的に汚水を送ることができなくなる。また、浄化槽は対象人員によって容積が異なり、当然ポンプに要求される送水量も異なるが、当該地域の人口漸増に対応するには、ポンプの取替えや増設が必要となる。
【0004】
【発明の目的】
本発明の目的は、合併処理浄化槽において水中ポンプ設置槽から計量槽を介して処理槽へ汚水を送水するにつき、水中ポンプ設置槽内の水位変動による送水量の変化が少なくて高効率な浄化処理が行なわれ、且つ、水量変更の要求にも即応し得る定量性ポンプ装置を提供することにある。
【0005】
【発明の構成】
本発明に係る合併処理浄化槽用定量性ポンプ装置においては、処理槽の前段槽として流量調整槽等と呼称される水中ポンプ設置槽を有し、水中ポンプ設置槽内の検知水位を電気信号として出力する圧力センサと、ポンプモータの実回転数を検知し電気信号として出力する回転数センサをポンプモータに付設し、上記圧力センサおよび回転数センサからの電気信号を受けてポンプモータを適正回転数で駆動させるための制御回路部をポンプモータから導延させて槽外へ設置し、水中ポンプ設置槽内が高水位時にはポンプモータの回転数を減少させ低水位時にはポンプモータの回転数を増大させる回路構成とすると共に、上記槽内水位とポンプモータ回転数の関係比を保持してポンプ送水量を増減させるため各設定水量毎の水位と回転数との関係をマイクロコンピュータに記憶させた設定水量シフト機構を付設するのである。
【0006】
【実施例】
以下実施例の図面により説明をする。
【0007】
図1において、1は流量調整槽等と呼ばれる水中ポンプ設置槽であって、家庭から排出された汚水を一旦貯留するため、処理槽(図示せず)の前段槽として設けられている。2は後述する制御回路部3からの電源により水中ポンプ設置槽1内の水位変動に対応する回転数で駆動されるポンプモータ、4は水中ポンプ設置槽1内へ沈設せられポンプモータ2によって駆動される水中ポンプであって、その吸込口4aは水中ポンプ設置槽1内の水底面近くに開口せられ、吐出口4bは上延されて計量槽(図示せず)内の上方部へ開口されている。4′は予備ポンプであって、前記水中ポンプ4と交互運転させ、また、槽内が異常増水した場合に前記水中ポンプ4と同時運転させるのである。5はポンプモータ2の上方に嵌着されたヘッドカバー、6はヘッドカバー5の外側に付設された圧力センサであって、水中ポンプ設置槽1内の検知水位を電気信号として取り出し、その電気信号を制御回路部へ送るのである。3はポンプモータ2から導延して槽外へ設置された外設型の制御回路部であり、圧力センサからの電気信号を受けて、例えば図2に示すような回路構成からなる位相制御により、水中ポンプ設置槽1内が高水位時にはポンプモータ2の回転数を減少させ、低水位時にはポンプモータ2の回転数を増大させる電源としてポンプ駆動部へ送るのである。7はヘッドカバー5内においてモータ軸の上端に装着された回転数センサである。ポンプモータ2は負荷の影響等で必ずしも適正回転数で駆動しているとは限らない。そのため、上記回転数センサ7により検知されたポンプモータ2の実回転数を電気信号として制御回路部3へ送るのである。図3において、8はスイッチ或いはダイヤル等により操作される設定水量シフト機構、9はランプ等で表示される設定水量表示手段、10はランプ等で表示される槽内水位表示手段、11はランプ等で表示される増水警報表示手段、12はランプ等で表示される運転・停止表示手段である。各設定水量毎の水位と回転数との関係は図4に示すように定まるので、この関係をマイクロコンピュータに記憶させ、上記設定量シフト機構8を駆動して前記槽内水位とポンプモータ回転数の関係を保持してポンプの送水量を増減させるのである。
【0008】
【作用】
家庭からの汚水の排出量が多く水中ポンプ設置槽1内が高水位となったとき、圧力センサ6および回転数センサ7からの電気信号が制御回路部3へ送られ、その水位でのポンプ揚程に対応するようポンプモータ2の回転数を減少させる電源がポンプ駆動部へ送られて水中ポンプ4は低速回転となり、家庭からの汚水の排出量が少なくて水中ポンプ設置槽1内が低水位となったとき、ポンプモータの回転数を増大させる電源がポンプ駆動装置部へ送られて水中ポンプ4は高速回転となり、水深変化に伴なう処理槽内への送水量の変動幅が著るしく縮少せられることになる。そして上記水中ポンプ設置槽1内の水位変動状態は、圧力センサ6からの信号を利用して、ランプ等の槽内水位表示手段10により槽外から着取し得るように表示される。
【0009】
また、水量変更の必要を生じた場合には設定水量シフト機構8を操作することにより、前述の水位とポンプモータ回転数との関係を保持した状態で設定水量を増減させることができる。例えば段階的なスイッチ機構により設定水量を1台のポンプで図5のように切り換えることができるのである。そしてこの設定水量増減状態は、ランプ等の設定水量表示手段9により槽外で着取し得るように表示される。
【0010】
【発明の効果】
本発明によれば、水中ポンプ設置槽内の水位変動による送水量の変化が僅少となり、処理槽の負荷を一定に保ったことができ高効率な浄化処理が行なわれる。そして水量変更の必要を生じた場合にも即座に対応し得るという特徴がある。また、上記槽内水位の状況把握が圧力センサからの信号を利用して体現されるのであるから、従来のように専用の水位計を別設する必要がないという副次的効果も派生する。
【図面の簡単な説明】
【図1】本発明装置の構成の一部を示す側面図である。
【図2】本発明装置の回路構成を例示したブロック図である。
【図3】本発明装置における制御回路部のパネル構成を例示した平面図である。
【図4】本発明による設定水量毎の水位と回転数との関係を示す線図である。
【図5】本発明による送水量と揚程との関係を示す線図である。
【符号の説明】
1 水中ポンプ設置槽
2 ポンプモータ
3 制御回路部
6 圧力センサ
7 回転数センサ
8 設置水量シフト機構
9 設定水量表示手段
10 槽内水位表示手段
[0001]
TECHNICAL FIELD OF THE INVENTION
The present invention relates to a quantitative pump device for a combined treatment septic tank.
[0002]
[Prior art and its problems]
As is well known, in order to achieve high-efficiency purification treatment in a combined treatment septic tank, it is an indispensable requirement to constantly send sewage quantitatively to the treatment tank and keep the treatment tank load constant. .
[0003]
In the merger treatment septic tank, a tank called a flow rate adjustment tank is provided in the previous stage of the treatment tank to temporarily store the sewage discharged from the household, and water is sent from this tank to the treatment tank via a measuring tank with an underwater pump. However, in the above flow control tank, the water level always fluctuates due to fluctuations in the amount of wastewater from the home, and the pump water volume also fluctuates greatly with the fluctuation of the water level, so it is possible to send sewage quantitatively to the treatment tank. Disappear. In addition, the septic tank has a different volume depending on the target personnel, and naturally the amount of water required for the pump also varies. However, in order to cope with the gradual increase in population in the area, replacement or expansion of the pump is necessary.
[0004]
OBJECT OF THE INVENTION
The purpose of the present invention is to perform highly efficient purification treatment with little change in the amount of water delivered due to fluctuations in the water level in the submersible pump installation tank, when sewage is sent from the submersible pump installation tank to the treatment tank via the measuring tank in the merged treatment septic tank. It is an object of the present invention to provide a quantitative pump device capable of responding to a request for changing the amount of water.
[0005]
[Structure of the invention]
The quantitative pump device for a combined treatment septic tank according to the present invention has an underwater pump installation tank called a flow rate adjustment tank or the like as a pre-stage tank of the treatment tank, and outputs the detected water level in the submersible pump installation tank as an electrical signal. A pressure sensor that detects the actual rotational speed of the pump motor and outputs it as an electrical signal is attached to the pump motor, and the electric motor receives the electrical signal from the pressure sensor and the rotational speed sensor to A circuit that extends the control circuit section for driving from the pump motor and installs it outside the tank, and reduces the rotation speed of the pump motor when the submersible pump installation tank is at a high water level, and increases the rotation speed of the pump motor at a low water level. configuration and thereby, the relationship between the speed and the level of each set amount of water to increase or decrease the pump water supply amount by holding the tank water level and the pump motor speed relationship ratio It is to attached a set amount of water shift mechanism having stored in the microcomputer.
[0006]
【Example】
Hereinafter, description will be made with reference to the drawings of the embodiments.
[0007]
In FIG. 1, reference numeral 1 denotes a submersible pump installation tank called a flow rate adjustment tank or the like, which is provided as a preceding tank of a treatment tank (not shown) in order to temporarily store sewage discharged from a home. 2 is a pump motor driven by a power source from a control circuit unit 3 to be described later at a rotational speed corresponding to fluctuations in the water level in the submersible pump installation tank 1, and 4 is submerged in the submersible pump installation tank 1 and driven by the pump motor 2. The suction port 4a is opened near the bottom of the water in the submersible pump installation tank 1, and the discharge port 4b is extended upward and opened to the upper part in the measuring tank (not shown). ing. Reference numeral 4 'denotes a spare pump which is operated alternately with the submersible pump 4 and is operated simultaneously with the submersible pump 4 when the inside of the tank abnormally increases in water. 5 is a head cover fitted above the pump motor 2, and 6 is a pressure sensor attached to the outside of the head cover 5. The detected water level in the submersible pump installation tank 1 is taken out as an electric signal, and the electric signal is controlled. It is sent to the circuit section. Reference numeral 3 denotes an external control circuit portion that is led out from the pump motor 2 and installed outside the tank. Upon receiving an electric signal from the pressure sensor, for example, by phase control having a circuit configuration as shown in FIG. When the inside of the submersible pump installation tank 1 is at a high water level, the rotational speed of the pump motor 2 is reduced, and when the water level is low, the power is sent to the pump drive unit as a power source for increasing the rotational speed of the pump motor 2. Reference numeral 7 denotes a rotation speed sensor attached to the upper end of the motor shaft in the head cover 5. The pump motor 2 is not necessarily driven at an appropriate rotational speed due to the influence of a load or the like. Therefore, the actual rotational speed of the pump motor 2 detected by the rotational speed sensor 7 is sent to the control circuit unit 3 as an electrical signal. In FIG. 3, 8 is a set water amount shift mechanism operated by a switch or dial, 9 is a set water amount display means displayed by a lamp or the like, 10 is a tank water level display means displayed by a lamp or the like, 11 is a lamp or the like. A water increase warning display means 12 is displayed, and 12 is an operation / stop display means displayed by a lamp or the like. Since the relationship between the water level and the number of rotations for each set amount of water is determined as shown in FIG. 4, this relationship is stored in a microcomputer and the set amount shift mechanism 8 is driven to drive the water level in the tank and the number of rotations of the pump motor. Maintaining this relationship, the amount of pumped water is increased or decreased.
[0008]
[Action]
When the amount of discharged sewage from the home is large and the inside of the submersible pump installation tank 1 becomes a high water level, electrical signals from the pressure sensor 6 and the rotation speed sensor 7 are sent to the control circuit unit 3, and the pump head at that water level Power to reduce the rotational speed of the pump motor 2 is sent to the pump drive unit so that the submersible pump 4 rotates at a low speed, and the amount of sewage discharged from the home is small, and the submersible pump installation tank 1 has a low water level. When this happens, power to increase the rotation speed of the pump motor is sent to the pump drive unit, and the submersible pump 4 rotates at a high speed, and the fluctuation range of the water supply amount into the treatment tank accompanying the change in the water depth is remarkable. It will be reduced. Then, the water level fluctuation state in the submersible pump installation tank 1 is displayed using the signal from the pressure sensor 6 so that it can be taken from outside the tank by the tank water level display means 10 such as a lamp.
[0009]
Further, when it is necessary to change the water amount, the set water amount can be increased or decreased while maintaining the relationship between the water level and the pump motor rotation speed by operating the set water amount shift mechanism 8. For example, the set water amount can be switched with a single pump as shown in FIG. The set water amount increase / decrease state is displayed by the set water amount display means 9 such as a lamp so that it can be taken out of the tank.
[0010]
【The invention's effect】
According to the present invention, the change in the amount of water delivered due to the fluctuation of the water level in the submersible pump installation tank becomes small, the load of the processing tank can be kept constant, and highly efficient purification processing is performed. And it has the feature that it can respond immediately when the necessity of changing the amount of water arises. Further, since the situational awareness of the upper Symbol tank water level is being embodied by using a signal from the pressure sensor, also a secondary effect that it is not necessary to separately provided a water level gauge dedicated as in the prior art derived .
[Brief description of the drawings]
FIG. 1 is a side view showing a part of the configuration of a device of the present invention.
FIG. 2 is a block diagram illustrating a circuit configuration of the device of the present invention.
FIG. 3 is a plan view illustrating a panel configuration of a control circuit section in the device of the present invention.
FIG. 4 is a diagram showing a relationship between a water level and a rotation speed for each set water amount according to the present invention.
FIG. 5 is a diagram showing the relationship between the amount of water delivered and the head according to the present invention.
[Explanation of symbols]
DESCRIPTION OF SYMBOLS 1 Submersible pump installation tank 2 Pump motor 3 Control circuit part 6 Pressure sensor 7 Rotation speed sensor 8 Installation water amount shift mechanism 9 Set water amount display means 10 In-bath water level display means

Claims (1)

処理槽の前段槽として流量調整槽等と呼称される水中ポンプ設置槽を有し、水中ポンプ設置槽内の検知水位を電気信号として出力する圧力センサと、ポンプモータの実回転数を検知し電気信号として出力する回転数センサをポンプモータに付設し、上記圧力センサおよび回転数センサからの電気信号を受けてポンプモータを適正回転数で駆動させるための制御回路部をポンプモータから導延させて槽外へ設置し、水中ポンプ設置槽内が高水位時にはポンプモータの回転数を減少させ低水位時にはポンプモータの回転数を増大させる回路構成とすると共に、上記槽内水位とポンプモータ回転数の関係比を保持してポンプの送水量を増減させるため各設定水量毎の水位と回転数との関係をマイクロコンピュータに記憶させた設定水量シフト機構を付設したことを特徴とする、合併処理浄化槽用定量性ポンプ装置。There is a submersible pump installation tank called a flow rate adjustment tank etc. as a pre-stage tank of the treatment tank, a pressure sensor that outputs the detected water level in the submersible pump installation tank as an electrical signal, and the actual rotation speed of the pump motor is detected and electric A rotation speed sensor that outputs as a signal is attached to the pump motor, and a control circuit unit for driving the pump motor at an appropriate rotation speed in response to an electric signal from the pressure sensor and the rotation speed sensor is extended from the pump motor. Installed outside the tank, the circuit configuration is such that the rotation speed of the pump motor is decreased when the inside of the submersible pump installation tank is at a high water level and the rotation speed of the pump motor is increased at a low water level. setting water shift mechanism the relationship between the speed and the level of each set amount of water has been stored in the microcomputer to increase or decrease the water volume of the pump to hold the relationship ratio Characterized in that the set, combined treatment septic tank for quantitative pumps device.
JP35169795A 1995-11-12 1995-11-12 Quantitative pump device for merger processing septic tank Expired - Lifetime JP3654985B2 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP35169795A JP3654985B2 (en) 1995-11-12 1995-11-12 Quantitative pump device for merger processing septic tank

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP35169795A JP3654985B2 (en) 1995-11-12 1995-11-12 Quantitative pump device for merger processing septic tank

Publications (2)

Publication Number Publication Date
JPH09136094A JPH09136094A (en) 1997-05-27
JP3654985B2 true JP3654985B2 (en) 2005-06-02

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KR100814435B1 (en) * 2006-11-20 2008-03-17 천세산업 주식회사 Metering pump using brushless dc motor

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