JPH04175496A - Pressure transfer type sewage transporting device - Google Patents
Pressure transfer type sewage transporting deviceInfo
- Publication number
- JPH04175496A JPH04175496A JP30032290A JP30032290A JPH04175496A JP H04175496 A JPH04175496 A JP H04175496A JP 30032290 A JP30032290 A JP 30032290A JP 30032290 A JP30032290 A JP 30032290A JP H04175496 A JPH04175496 A JP H04175496A
- Authority
- JP
- Japan
- Prior art keywords
- sewage
- water level
- pump
- pressure
- level
- 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.)
- Pending
Links
- 239000010865 sewage Substances 0.000 title claims abstract description 50
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 70
- 238000001514 detection method Methods 0.000 claims abstract description 21
- 239000002351 wastewater Substances 0.000 description 6
- 238000000034 method Methods 0.000 description 4
- 238000005086 pumping Methods 0.000 description 2
- 230000032258 transport Effects 0.000 description 2
- 238000013459 approach Methods 0.000 description 1
- 239000000470 constituent Substances 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 239000013256 coordination polymer Substances 0.000 description 1
- 230000006866 deterioration Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 230000007774 longterm Effects 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- QSHDDOUJBYECFT-UHFFFAOYSA-N mercury Chemical compound [Hg] QSHDDOUJBYECFT-UHFFFAOYSA-N 0.000 description 1
- 229910052753 mercury Inorganic materials 0.000 description 1
- 238000005192 partition Methods 0.000 description 1
- 238000002360 preparation method Methods 0.000 description 1
- 238000010926 purge Methods 0.000 description 1
- 239000007787 solid Substances 0.000 description 1
- 238000003860 storage Methods 0.000 description 1
- 239000002699 waste material Substances 0.000 description 1
Landscapes
- Sewage (AREA)
- Control Of Non-Positive-Displacement Pumps (AREA)
- Structures Of Non-Positive Displacement Pumps (AREA)
Abstract
Description
【発明の詳細な説明】
〔産業上の利用分野〕
本発明は、汚水発生源からの流入汚水を溜める汚水槽と
、前記汚水槽内の汚水水位を検出する水位検出手段と、
汚水を圧送管に圧送するポンプと、前記水位検出手段に
よる検出水位が設定水位以上になれば前記ポンプを駆動
する制御手段とで構成してある圧力式汚水搬送装置に関
する。[Detailed Description of the Invention] [Field of Industrial Application] The present invention provides a sewage tank for storing inflow sewage from a sewage generation source, a water level detection means for detecting the sewage water level in the sewage tank,
The present invention relates to a pressure-type sewage conveyance device comprising a pump for force-feeding sewage to a pressure-feeding pipe, and a control means for driving the pump when the water level detected by the water level detection means exceeds a set water level.
従来、この種の汚水搬送装置は、汚水槽へ流入した汚水
を圧送管に圧送するためのポンプの駆動時期を、水位検
出手段により検出される水位が単一の設定水位となった
時期としていた。Conventionally, in this type of sewage conveying device, the pump for pumping the sewage that has flowed into the sewage tank into the pressure pipe is driven when the water level detected by the water level detection means reaches a single set water level. .
しかし、通常、圧送管には複数の汚水搬送装置が接続さ
れているので、時間帯によっては複数の汚水槽のポンプ
が同時に駆動される場合がある。However, since a plurality of sewage conveyance devices are usually connected to the pressure feed pipe, the pumps of a plurality of sewage tanks may be driven simultaneously depending on the time of day.
この場合、圧送管の管路圧力が上昇して汚水槽からの汚
水の搬送が効率よく行われないために、長時間の駆動に
よりポンプが無駄に劣化したり、ポンプ駆動用のエネル
ギイが浪費される虞があった。In this case, the pressure in the pressure pipe increases and the sewage is not transported efficiently from the sewage tank, so the pump deteriorates unnecessarily due to long-term operation, and the energy used to drive the pump is wasted. There was a risk that
これは、圧送管の管路圧力がポンプの吐出上限圧力に近
づく程に顕著となる。This becomes more noticeable as the line pressure of the pressure feed pipe approaches the discharge upper limit pressure of the pump.
圧送管の管径を大にすれば欠点は解消できるが、設備コ
スト、施工コストが大となるので好ましくない。Although the drawbacks can be overcome by increasing the diameter of the pressure-feeding pipe, this is not preferable because it increases the equipment cost and construction cost.
本発明の目的は上述した従来欠点を解消する点にある。An object of the present invention is to eliminate the above-mentioned conventional drawbacks.
この目的を達成するため本発明の特徴構成は、前記制御
手段に、前記ポンプを駆動する設定水位を切り替える設
定水位切替え手段を設けてあることにある。In order to achieve this object, the characteristic configuration of the present invention is that the control means is provided with a set water level switching means for switching the set water level for driving the pump.
設定水位切替え手段は、汚水発生量が少なく圧送管の管
路圧力がポンプの吐出上限圧力よりも低いときには、低
位の設定水位に切替えてポンプの駆動効率の良い状態で
汚水の搬送を行うことで、複数の汚水槽のポンプが同時
に駆動される可能性のある排水量の大となる時間帯に備
えて汚水槽の貯留容量を稼ぐ。The set water level switching means switches to a lower set water level when the amount of sewage generated is small and the line pressure of the pressure-feeding pipe is lower than the discharge upper limit pressure of the pump, and transports the sewage in a state where the pump drive efficiency is high. , to increase the storage capacity of the sewage tank in preparation for times when the amount of drainage is large, when multiple sewage tank pumps may be driven simultaneously.
一方、複数の汚水槽のポンプか同時に駆動される可能性
のある時間帯には、高位の設定水位に切替えて時間あた
りのポンプの駆動回数を減らすことで、汚水発生量のピ
ークとなる時期に複数の汚水槽のポンプか同時に駆動さ
れる時間を減少させる。On the other hand, during times when multiple sewage tank pumps may be running at the same time, switching to a higher set water level and reducing the number of times the pumps are driven per hour can be used to reduce the number of times the pumps are driven per hour. Reduces the amount of time multiple sump pumps are driven simultaneously.
本発明によれば、圧送管に接続された複数の汚水槽のポ
ンプが同時に駆動された場合でも、圧送管の管径を大に
することなく、又ポンプの劣化や駆動エネルギイの浪費
を防止しながらも、汚水槽からの汚水の搬送を効率よく
行うことかできるようになった。According to the present invention, even when pumps for a plurality of sewage tanks connected to a pressure feed pipe are driven at the same time, the diameter of the pressure feed pipe is not increased, and deterioration of the pump and waste of drive energy can be prevented. However, it has become possible to transport wastewater from sewage tanks more efficiently.
以下に本発明の実施例を図面に基づいて説明する。 Embodiments of the present invention will be described below based on the drawings.
圧力式下水道システムは、第２図に示すように、各戸も
しくは数戸に一つの汚水搬送装置（Ａ）を、下水処理場
（１）に繋がる圧送管（２）に複数個接続して構成して
ある。As shown in Figure 2, a pressure sewer system consists of one sewage conveyance device (A) for each house or several houses connected to a pressure pipe (2) connected to a sewage treatment plant (1). There is.
圧送管（２）は、下水処理場（１）に繋がる大径の圧送
本管（２ａ）と、汚水搬送装置（Ａ）の汚水吐出し口（
８）と圧送本管（２ａ）とを接続する小径の接続管（２
ｂ）とで構成してある。The pressure feed pipe (2) is a large-diameter pressure feed main pipe (2a) that connects to the sewage treatment plant (1), and a sewage discharge port (
8) and the pressure feeding main pipe (2a).
b).
前記汚水搬送装置（Ａ）は、第１図に示すように、流入
汚水を一旦貯溜する汚水槽（３）と、前記汚水槽（３）
内の汚水水位を検出する水位検出手段（４）と、汚水を
圧送管（２）に圧送するポンプ（Ｐ）と、前記水位検出
手段（４）による検出水位が三種類の設定水位（ＬＷＬ
）、 （ＨＷＬ）、 （ＨＨＷＬ）のうち、中位の設定
水位（Ｉ（ＷＬ）以上になれば前記ポンプ（Ｐ）を駆動
して、低位の設定水位（ＬＷＬ）か検出されるまで汚水
を圧送する制御手段（９）等で構成してある。As shown in FIG. 1, the sewage conveyance device (A) includes a sewage tank (3) for temporarily storing inflow sewage, and the sewage tank (3).
A water level detection means (4) for detecting the wastewater level in the tank, a pump (P) for pumping the wastewater to the pressure feeding pipe (2), and a water level detected by the water level detection means (4) are set to three types of set water levels (LWL).
), (HWL), (HHWL), if the water level exceeds the intermediate set water level (I(WL)), the pump (P) is driven to pump wastewater until the lower set water level (LWL) is detected. It is composed of a control means (9) for pressure feeding, etc.
前記中位の設定水位（ＨＷＬ）はさらに、第−設定水位
（）ＩＷＬＩ）と、第−設定水位（ＨＷＬＩ）に対して
低位の設定水位（ＬＷＬ）から２７３の水位である第二
設定水位（ＨＶＩＬ２）の二つの設定水位でなる。The medium set water level (HWL) further includes a second set water level (IWLI) and a second set water level (IWLI), which is a water level 273 from the lower set water level (LWL) with respect to the first set water level (HWLI). There are two set water levels (HVIL2).
前記ポンプ（Ｐ）は、前記汚水槽（３）の底部に設置し
てあり、設定水位（ＨＨＷＬ）より上方に設けられた流
入管（５）から流入する汚水を逆止弁（６）、仕切弁（
７）を介して汚水吐出し口（８）に排出するもので、汚
水に混入する固形物等を細かく破砕する破砕装置を備え
である。The pump (P) is installed at the bottom of the sewage tank (3), and the sewage flowing in from the inflow pipe (5) provided above the set water level (HHWL) is pumped through a check valve (6) and a partition. valve(
7) to the wastewater discharge port (8), and is equipped with a crushing device that finely crushes solids and the like mixed into the wastewater.
前記接続管（２ｂ）には、管路圧力を検出する圧力検出
手段（ｌＯ）を設けてあり、・前記制御手段（９）は、
前記圧力検出手段（１０）による検出圧力が前記ポンプ
ＣＰ’）の吐出上限圧力と等しい圧力を設定圧力として
、それより大なるとき、前記ポンプ（Ｐ）の駆動を禁止
する。The connecting pipe (2b) is provided with a pressure detection means (lO) for detecting the pipe line pressure, and the control means (9) includes:
The pressure detected by the pressure detection means (10) is set to a pressure equal to the discharge upper limit pressure of the pump CP'), and when the pressure is higher than the set pressure, driving of the pump (P) is prohibited.
前記水位検出手段（４）により検出される三種類の設定
水位（ＬＷＬ）、 （Ｉ（ＷＬ＞、 （ＨＨＷＬ）は、
前記ポンプ（Ｐ）の吸込口より上部であってポンプ駆動
を停止する位置である低位の設定水位（ＬＷＬ）と、ポ
ンプ駆動を開始する水位であって一回のポンプ駆動時間
が２．３分で汚水水位が低位の設定水位（ＬＷＬ）とな
る中位の設定水位（ＨＷＬ）と、想定されるピーク汚水
量が流入したときポンプで吐き出せない差分量を貯水で
きる高位の設定水位（ＨＨＷＬ）である。The three types of set water levels (LWL) detected by the water level detection means (4), (I(WL>, (HHWL)) are:
The lower set water level (LWL) is above the suction port of the pump (P) and is the position at which pump drive is stopped, and the water level at which pump drive is started and one pump drive time is 2.3 minutes. A medium set water level (HWL) at which the sewage water level is set at a low level (LWL), and a high set water level (HHWL) at which the difference amount that cannot be discharged by the pump when the expected peak amount of sewage flows in can be stored. be.
前記水位検出手段（４）には、中空のホール状の密閉容
器内に水銀スイッチを設けた転倒式の水位計や、エアパ
ージ式の水位計が使用されている。As the water level detection means (4), a tipping type water level gauge in which a mercury switch is provided in a hollow hole-shaped sealed container or an air purge type water level gauge is used.
以下に前記制御手段（９）によるポンプの駆動制御を、
第３図に示すフローチャートに基づき説明する。The drive control of the pump by the control means (9) is as follows:
This will be explained based on the flowchart shown in FIG.
先ず、前記水位検出手段（４）により検出された水位を
入力して〈＃ｌ〉、検出水位が中位の第−設定水位（Ｈ
ＷＬＩ）以上か否か判断する〈＃２〉。First, the water level detected by the water level detection means (4) is input <#l>, and the detected water level is set at the middle setting water level (H
WLI) or more (#2).
中位の第−設定水位（ＨＷＬＩ）以上てなければステッ
プ＜＃ＩＤの処理を行い、中位の第−設定水位（ＨＷＬ
Ｉ）以上であれば前記圧力検出手段（ｌＯ）により検出
された管路圧力を入力して〈＃３〉、管路圧力がポンプ
の吐出圧力以上か否か判断する〈＃４〉。If the water level is not higher than the middle set water level (HWLI), perform the process of step <# ID and set the middle set water level (HWLI)
I) If it is above, input the pipe line pressure detected by the pressure detection means (lO) <#3>, and judge whether the pipe line pressure is above the discharge pressure of the pump <#4>.
管路圧力がポンプの吐出圧力以上であれば、５分間待機
して他のポンプの駆動が終了するのを待ち、管路圧力か
ポンプの吐出圧力より小であれば直ちにポンプを始動さ
せる＜＃５＞、 ＜＃６＞。If the line pressure is greater than or equal to the pump's discharge pressure, wait 5 minutes for other pumps to finish driving, and if the line pressure is lower than the pump's discharge pressure, start the pump immediately. 5>, <#6>.
再度前記水位検出手段（４）により検出された水位を入
力して＜＃７〉、低位の設定水位（ＬＷＬ）と比較して
〈＃８〉低位の設定水位（ＬＷＬ）以下であればポンプ
を停止する〈＃９〉。Input the water level detected by the water level detection means (4) again <#7> and compare it with the lower set water level (LWL). <#8> If it is below the lower set water level (LWL), turn off the pump. Stop <#9>.
次に、前記水位検出手段（４）により検出された水位を
入力して＜＃１０＞、中位の第二設定水位（ＨＷＬ２）
より低ければ処理を終了し、以上であれば前記圧力検出
手段（１０）により検出された管路圧力を入力して＜＃
１２＞、管路圧力がポンプの吐出上限圧力以上か否か判
断する＜＃１３＞。Next, the water level detected by the water level detection means (4) is input <#10>, and the medium second set water level (HWL2) is set.
If it is lower, the process is terminated, and if it is higher than that, input the pipe line pressure detected by the pressure detection means (10) and press <#
12>, it is determined whether the pipe line pressure is equal to or higher than the discharge upper limit pressure of the pump <#13>.
管路圧力かポンプの吐出上限圧力より高ければ処理を終
了し、以下であれば時刻を検知しく＃１４＞、排水量の
少ない夜間であればポンプを始動させる＜＃１６＞。If the pipe line pressure is higher than the discharge upper limit pressure of the pump, the process is terminated, if it is below, the time is detected #14>, and if it is nighttime when the amount of drainage is low, the pump is started <#16>.
再度、前記水位検出手段（４）により検出された水位を
入力して＜＃１７＞、低位の設定水位（ＬＷＩ、）以下
であればポンプを停止して＜＃１８＞、 ＜＃１９＞処
理を終了する。Input the water level detected by the water level detection means (4) again <#17>, and if it is below the lower set water level (LWI), stop the pump and process <#18> and <#19> end.
上述のステップ＜＃１１＞から＜＃１６＞かポンプを駆
動する設定水位を切り替える設定水位切替え手段（９ａ
）を構成している。Steps <#11> to <#16> described above include setting water level switching means (9a) for switching the set water level for driving the pump.
).
以下に本発明の別実施例を説明する。 Another embodiment of the present invention will be described below.
先の実施例では、第二設定水位（ＨＷＬ２）より水位か
高いときに、管路圧力がポンプ吐出上限圧力より小でし
かも夜間に限りポンプを運転しているが、管路圧力を条
件に入れなくてもよく、さらには夜間に限定するもので
はなく、昼間であっても排水量の少ない時間帯であれば
任意である。In the previous example, when the water level is higher than the second set water level (HWL2), the pipe line pressure is lower than the pump discharge upper limit pressure, and the pump is operated only at night. It is not necessary to do so, and it is not limited to nighttime, but may be any time during the day when the amount of drainage is low.
水位検出手段や圧力検出手段の構成素子は任意である。The constituent elements of the water level detection means and pressure detection means are arbitrary.
圧力検出手段の設定位置は逆止弁より圧送管側であれば
任意である。The pressure detection means can be set at any position as long as it is closer to the pressure feed pipe than the check valve.
尚、特許請求の範囲の項に図面との対照を便利にする為
に符号を記すが、該記入により本発明は添付図面の構成
に限定されるものではない。Incidentally, although reference numerals are written in the claims section for convenient comparison with the drawings, the present invention is not limited to the structure shown in the accompanying drawings.
図面は本発明に係る斥力式汚水搬送装置の実施例を示し
、第１図は汚水搬送装置の断面図、第２図は下水道シス
テムの構成図、第３図はフローチャートである。
（３）・・・・・・汚水槽、（４）・・・・・・水位検
出手段、 ′（９）・・・・・・制御手段、（９
ａ）・・・・・・設定水位切替え手段、（Ｐ）・・・・
・・ポンプ。The drawings show an embodiment of the repulsive sewage conveyance device according to the present invention, in which FIG. 1 is a sectional view of the sewage conveyance device, FIG. 2 is a configuration diagram of the sewerage system, and FIG. 3 is a flowchart. (3)...Sewage tank, (4)...Water level detection means, '(9)...Control means, (9
a)...Setting water level switching means, (P)...
··pump.
Claims (1)
、前記汚水槽（３）内の汚水水位を検出する水位検出手
段（４）と、汚水を圧送管（２）に圧送するポンプ（Ｐ
）と、前記水位検出手段（４）による検出水位が設定水
位以上になれば前記ポンプ（Ｐ）を駆動する制御手段（
９）とで構成してある圧力式汚水搬送装置であって、 前記制御手段（９）に、前記ポンプ（Ｐ）を駆動する設
定水位を切り替える設定水位切替え手段（９ａ）を設け
てある圧力式汚水搬送装置。 ２、前記設定水位切替え手段（９ａ）による設定水位の
切替えを時刻に基づき行う請求項１記載の圧力式汚水搬
送装置。[Claims] 1. A sewage tank (3) for storing inflow sewage from a sewage generation source, a water level detection means (4) for detecting the sewage level in the sewage tank (3), and a pressure-feeding pipe ( 2) Pump (P
), and a control means (
9), wherein the control means (9) is provided with a set water level switching means (9a) for switching the set water level for driving the pump (P). Sewage conveyance equipment. 2. The pressure-type sewage conveying device according to claim 1, wherein the set water level is switched by the set water level switching means (9a) based on time.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP30032290A JPH04175496A (en) | 1990-11-05 | 1990-11-05 | Pressure transfer type sewage transporting device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP30032290A JPH04175496A (en) | 1990-11-05 | 1990-11-05 | Pressure transfer type sewage transporting device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPH04175496A true JPH04175496A (en) | 1992-06-23 |
Family
ID=17883385
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP30032290A Pending JPH04175496A (en) | 1990-11-05 | 1990-11-05 | Pressure transfer type sewage transporting device |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH04175496A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2011245387A (en) * | 2010-05-25 | 2011-12-08 | Aquaintec Corp | Method and apparatus for removing sand in settling basin |
| JP2015512008A (en) * | 2012-01-19 | 2015-04-23 | アブ アル ルブ カリル | Waste pump |
-
1990
- 1990-11-05 JP JP30032290A patent/JPH04175496A/en active Pending
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2011245387A (en) * | 2010-05-25 | 2011-12-08 | Aquaintec Corp | Method and apparatus for removing sand in settling basin |
| JP2015512008A (en) * | 2012-01-19 | 2015-04-23 | アブ アル ルブ カリル | Waste pump |
| US9938978B2 (en) | 2012-01-19 | 2018-04-10 | Khalil Abu Al-Rubb | Waste pump |
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