JP3654986B2 - 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
JP3654986B2
JP3654986B2 JP35169895A JP35169895A JP3654986B2 JP 3654986 B2 JP3654986 B2 JP 3654986B2 JP 35169895 A JP35169895 A JP 35169895A JP 35169895 A JP35169895 A JP 35169895A JP 3654986 B2 JP3654986 B2 JP 3654986B2
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Prior art keywords
tank
water
pump motor
pump
water level
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Expired - Lifetime
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JP35169895A
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Japanese (ja)
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JPH09136095A (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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Description

【0001】
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】
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。処理槽の前段には、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と呼ばれる槽があり、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。
【0003】
同様のことが、放流槽と呼ばれる最終段階の槽からの処理水の放出においても存在する。ある規模以上の浄化槽については処理水量を測定することが国によって義務付けられている。そして従来は流量計で測定したり、放流ポンプの運転時間を積算時間計で計測し、それとポンプの平均送水量の積で求めたりしていた。しかし前者については流量計そのものが高価なため、コスト面に問題があり、後者の場合はポンプの送水量は揚程によって変化するため、平均送水量そのものが信頼性に欠けるという憾みがある。これは、前述のように流量調整槽の水位が常に変動することに縁由して放流槽内の水位も常に一定ではあり得ないからである。
【0004】
[発明の目的]
本発明の目的は、合併処理浄化槽において最終段階の放流槽内から処理水を排出するにつき、水位変動による送水量の変化が少なく、通算の処理水量も一目で判明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、合併処理浄化槽の最終段階に位置して放流槽等と呼称される槽内に水中ポンプを沈設し、該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、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量シフト機構を付設し、且つ、水中ポンプ運転中に設定水量に対応したパルス信号を出力するパルス発生装置を組込んだのである。
【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は合併処理浄化槽の最終段階に位置する槽であって、放流槽等と呼ばれる水中ポンプ設置槽である。2は後述する制御回路部3からの電源を受けて水中ポンプ設置槽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内へ沈設せられ上記ポンプモータ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内に開口せられ、吐出口4bは上延されて槽外へ開口されている。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と同時運転させるものである。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3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6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装置部へ送るのである。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、上記設定水量シフト機構8を駆使して前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のである。13は水中ポンプ運転中に設定水量に対応したパルス信号を出力するパルス発生装置であって、例えば設定水量30l/minでポンプ運転中は、制御回路部3から30パルス/min(2台のポンプ同時運転の場合は60パルス/min)の信号を出力するようにしておくと、これをパルスカウンタで読み取ることによって積算流量を知ることができ、通算の処理水量も一目で判明するのである。
【0008】
[作用]
沈殿槽等前段槽からの処理水の流入が多くて水中ポンプ設置槽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、前段槽からの処理水の流入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2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、水位変化に伴なう送水量(槽外への処理水の排出量)の変動幅が少なくなる。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により槽外から把握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、前述の水位と回転数との関係比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のように切り替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により槽外で看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、槽の負荷が一定に保持できて処理水の排出が円滑に行なわれ、且つ、高価な流量計を用いることなくして積算流量を知ることができ、通算の処理水量も一目で判明し得るという利点がある。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 設定水量シフト機構
9 設定水量表示手段
10 槽内水位表示手段
13 パルス発生装置
[0001]
The present invention relates to a quantitative pump device for a combined treatment septic tank.
[0002]
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. . Before the treatment tank, there is a tank called a flow rate adjustment tank for temporarily storing 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, etc. In the flow adjustment tank, the water level constantly fluctuates due to fluctuations in the amount of drainage from the household, and the pump water supply fluctuates greatly with the fluctuations in the water level, making it impossible to send sewage quantitatively to the treatment tank.
[0003]
The same is true for the discharge of treated water from the final stage tank called the discharge tank. The government is obligated to measure the amount of treated water for septic tanks of a certain size or larger. In the past, measurement was made with a flow meter, or the operation time of the discharge pump was measured with an integrating hour meter, and the product was obtained by multiplying it by the average amount of water delivered by the pump. However, since the flow meter itself is expensive for the former, there is a problem in cost, and in the latter case, the pumped water amount varies depending on the head, so that the average water amount itself is unreliable. This is because the water level in the discharge tank cannot always be constant due to the fact that the water level of the flow rate adjusting tank constantly fluctuates as described above.
[0004]
[Object of invention]
An object of the present invention is to provide a quantitative pump device in which the amount of treated water is small and the total amount of treated water can be determined at a glance when the treated water is discharged from the final discharge tank in the combined treatment septic tank. There is to do.
[0005]
[Structure of the invention]
In the quantitative pump device for a combined treatment septic tank according to the present invention, a submersible pump is set in a tank called a discharge tank or the like located at the final stage of the combined processing septic tank, and the detected water level in the tank is an electrical signal. A pressure sensor that outputs as a pressure sensor and a rotational speed sensor that detects the actual rotational speed of the pump motor and outputs it as an electrical signal are attached to the pump motor, and the pump motor is rotated properly by receiving electrical signals from the pressure sensor and the rotational speed sensor. A circuit configuration that allows a control circuit unit to be driven by a number to be extended from the pump motor and installed outside the tank, reduces the rotation speed of the pump motor when the tank is at a high water level, and increases the rotation speed of the pump motor at a low water level microcode with, the relationship between the speed and the level of each set amount of water to increase or decrease the water volume of the pump by holding the tank water level and the pump motor speed in relation ratio is And attaching a set amount shift Organization that is stored in the computer, and is to incorporate a pulse generator for outputting a pulse signal corresponding to the set amount of water in the water pump operation.
[0006]
[Example]
Hereinafter, description will be made with reference to the drawings of the embodiments.
[0007]
In FIG. 1, reference numeral 1 denotes a tank located at the final stage of the combined treatment septic tank, which is a submersible pump installation tank called a discharge tank or the like. 2 is a pump motor that receives power from a control circuit unit 3 to be described later and is driven 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 the pump motor. The suction port 4a is opened in the submersible pump installation tank 1, and the discharge port 4b is extended and opened outside the tank. 4 'is a reserve pump, which is operated alternately with the submersible pump 4, and is operated simultaneously with the submersible pump 4 when the water in the tank abnormally increases. 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 unit 3. Reference numeral 3 denotes an external control circuit portion that is led out from the pump motor 2 and is installed outside the tank. Upon receiving an electrical signal from the pressure sensor 6, for example, phase control having a circuit configuration as shown in FIG. Thus, 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 decreased, and when the water level is low, the pump motor 2 is sent to the pump drive unit as a power source for increasing the rotational speed. 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 section 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 rotation speed for each set water amount is determined as shown in FIG. 4, this relationship is stored in the microcomputer, and the water level in the tank and the pump motor rotation speed are made full use of the set water amount shift mechanism 8. That is, the pumping water volume is increased or decreased while maintaining the above relationship. Reference numeral 13 denotes a pulse generator that outputs a pulse signal corresponding to the set water amount during the submersible pump operation. For example, during the pump operation at the set water amount of 30 l / min, the control circuit unit 3 outputs 30 pulses / min (two pumps). If a signal of 60 pulses / min) is output in the case of simultaneous operation, the integrated flow rate can be known by reading this with a pulse counter, and the total amount of treated water can be determined at a glance.
[0008]
[Action]
When there is much inflow of treated water from a preceding tank such as a sedimentation tank 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, A power supply for reducing the number of rotations of the pump motor 2 is sent to the pump drive so as to correspond to the pump head at the water level, the submersible pump 4 is rotated at a low speed, and there is little inflow of treated water from the previous stage tank, and the submersible pump installation tank When the inside of 1 becomes a low water level, a power source for increasing the rotational speed of the pump motor 2 is sent to the pump drive unit, and the submersible pump 4 rotates at a high speed. The fluctuation range of the treated water discharge amount) is reduced. And the water level fluctuation state in the said submersible pump installation tank 1 is displayed so that it can grasp | ascertain from the outside of the tank by the tank water level display means 10, such as a lamp | ramp, using the signal from the pressure sensor 6. FIG.
[0009]
In addition, when it is necessary to change the water amount, the set water amount can be increased or decreased by operating the set water amount shift mechanism 8 while maintaining the above-described ratio between the water level and the rotational speed. 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 observed outside 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 tank load can be kept constant, the treated water can be discharged smoothly, and an expensive flow meter is used. Without being able to know the integrated flow rate, and the total amount of treated water can be found at a glance. 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 Set water amount shift mechanism 9 Set water amount display means 10 In-bath water level display means 13 Pulse generator

Claims (1)

合併処理浄化槽の最終段階に位置して放流槽等と呼称される槽内に水中ポンプを沈設し、該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、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量シフト機構を付設し、且つ、水中ポンプ運転中に設定水量に対応したパルス信号を出力するパルス発生装置を組込んだことを特徴とする、合併処理浄化槽用定量性ポンプ装置。A submersible pump is installed in a tank called a discharge tank located at the final stage of the merger processing septic tank, and a pressure sensor that outputs the detected water level in the tank as an electrical signal and the actual rotational speed of the pump motor is detected. A rotation speed sensor that outputs an electric signal is attached to the pump motor, and a control circuit section for driving the pump motor at an appropriate rotation speed by receiving the electric signal from the pressure sensor and the rotation speed sensor is extended from the pump motor. The circuit configuration is such that when the inside of the tank is at a high water level, the number of rotations of the pump motor is reduced and the number of rotations of the pump motor is increased at a low water level, and the relation between the water level in the tank and the number of rotations of the pump motor. and attaching a set amount shifting mechanisms the relationship between the speed and the level of each set amount of water has been stored in the microcomputer for holding the ratio increase or decrease the water volume of the pump, and water Wherein the incorporating pulse generator for outputting a pulse signal corresponding to the set amount of water during pump operation, combined treatment septic tank for quantitative pumps device.
JP35169895A 1995-11-12 1995-11-12 Quantitative pump device for merger processing septic tank Expired - Lifetime JP3654986B2 (en)

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Application Number Priority Date Filing Date Title
JP35169895A JP3654986B2 (en) 1995-11-12 1995-11-12 Quantitative pump device for merger processing septic tank

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Application Number Priority Date Filing Date Title
JP35169895A JP3654986B2 (en) 1995-11-12 1995-11-12 Quantitative pump device for merger processing septic tank

Publications (2)

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JP3654986B2 true JP3654986B2 (en) 2005-06-02

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Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE29812289U1 (en) * 1998-07-10 1998-10-22 Niehaus, Dirk, 48167 Münster Control and monitoring device for small sewage treatment plants or groundwater pumping systems
JP4503277B2 (en) * 2003-12-11 2010-07-14 新明和工業株式会社 Submersible pump device
CN115263772A (en) * 2022-08-03 2022-11-01 苏州美达斯机电有限公司 Control method for adjusting working mode of submersible pump

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