JPS6231680Y2 - - Google Patents
Info
- Publication number
- JPS6231680Y2 JPS6231680Y2 JP1983053475U JP5347583U JPS6231680Y2 JP S6231680 Y2 JPS6231680 Y2 JP S6231680Y2 JP 1983053475 U JP1983053475 U JP 1983053475U JP 5347583 U JP5347583 U JP 5347583U JP S6231680 Y2 JPS6231680 Y2 JP S6231680Y2
- Authority
- JP
- Japan
- Prior art keywords
- pump
- discharge pipe
- liquid
- valve
- discharge
- 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
Links
Landscapes
- Structures Of Non-Positive Displacement Pumps (AREA)
- Details Of Reciprocating Pumps (AREA)
Description
【考案の詳細な説明】
この考案はポンプとモータの全体が液中に没す
るサブマージドモータポンプに関する。タンク内
及び井戸内の水、油等の液体を汲み上げるサブマ
ージドモータポンプの吐出管は地下数十米から数
百米に及ぶことが多い。又この種のポンプはポン
プと吐出管の間にチエツキ弁を設け、ポンプ停止
時に吐出管内の液体がポンプ側に逆流し、回転体
が逆転するのを防止している。更にチエツキ弁に
は小さなドレン孔が設けられており、ポンプ停止
時にそのドレン孔から僅かづつ吐出管内の液体が
流出し、吐出管内に液体が残留しないようになつ
ている。（ポンプ停止時に吐出管に液体が残留し
ていると、寒冷地では凍結したりするなど破損の
原因となる。）
このようなサブマージドポンプでその運転をタ
ンク、井戸内の液位によりコントロールする場合
従来のポンプでは
(1) タンク、井戸等の液位が運転液位となつてポ
ンプが起動すると、吐出管内はポンプ揚液によ
り順次満液となる。そして当然ながら、タンク
や井戸内の液位は下がつてくる。特にタンクの
径や、井戸の径がポンプ外径に比しやや大きい
程度で、しかもポンプ吐出量が多い場合は、タ
ンク内や井戸内の液位は急激に低下することは
明らかである。[Detailed Description of the Invention] This invention relates to a submerged motor pump in which the entire pump and motor are submerged in liquid. The discharge pipes of submerged motor pumps that pump up liquids such as water and oil from tanks and wells often extend several tens to hundreds of meters underground. In addition, this type of pump is provided with a check valve between the pump and the discharge pipe to prevent the liquid in the discharge pipe from flowing back to the pump side when the pump is stopped, thereby preventing the rotating body from rotating in reverse. Furthermore, the check valve is provided with a small drain hole, and when the pump is stopped, the liquid in the discharge pipe flows out little by little from the drain hole, so that no liquid remains in the discharge pipe. (If liquid remains in the discharge pipe when the pump is stopped, it may freeze or cause damage in cold regions.) With this type of submerged pump, its operation is controlled by the liquid level in the tank or well. In the case of conventional pumps, (1) When the liquid level in the tank, well, etc. reaches the operating level and the pump is started, the inside of the discharge pipe gradually becomes full of liquid due to pumped liquid. Naturally, the liquid level in the tank or well will drop. In particular, when the diameter of the tank or the diameter of the well is slightly larger than the outer diameter of the pump, and the pump discharge amount is large, it is clear that the liquid level in the tank or well will drop rapidly.
(2) タンクや井戸の液位が低下してきて、運転最
低液位に達するとポンプは停止する。(2) When the liquid level in the tank or well decreases and reaches the minimum operating level, the pump will stop.
(3) ポンプが停止すると、前述の如くチエツキ弁
に設けたドレン孔から吐出管内の液体が少しづ
つ流下し、ポンプ内を通つて、ストレーナから
逆にタンク内や井戸内に漏れ出す。(3) When the pump stops, the liquid in the discharge pipe gradually flows down from the drain hole provided in the check valve as described above, passes through the pump, and leaks out from the strainer into the tank or well.
(4) この漏れにより液位は上昇し、再び運転液位
に達し、ポンプは再起動する。このような状態
ではポンプの運転はハンチングを起すこととな
り、最悪の場合は、吐出ラインに送液すること
なくポンプのオン−オフ運転を無意味にくりか
えすことになる。(4) Due to this leakage, the liquid level rises and reaches the operating liquid level again, and the pump restarts. In such a state, the pump operation will cause hunting, and in the worst case, the pump will be repeatedly turned on and off pointlessly without sending liquid to the discharge line.
この考案はこの欠点を解消するため、吐出管と
は別に吐出管に比して細いが、チエツキ弁に設け
たドレン孔の抵抗よりは小さい抵抗のドレン配管
をチエツキ弁上部の吐出管より地上部まで設け、
ポンプ停止時に外部より吐出管内に圧力をかける
ことによりこのドレン管を通して吐出管内の液体
を抜き出すようにし、ポンプ停止時に無意味なオ
ン−オフ運転をすることなく、吐出管内の液体を
抜くことができる。 In order to solve this problem, this invention aims to install a drain pipe that is thinner than the discharge pipe, but has a resistance lower than that of the drain hole provided in the check valve, and connects it to the above-ground part of the discharge pipe above the check valve. up to,
When the pump is stopped, the liquid inside the discharge pipe is drawn out through this drain pipe by applying pressure from the outside to the inside of the discharge pipe, and the liquid inside the discharge pipe can be drawn out without meaningless on-off operation when the pump is stopped. .
図について説明すれば、第１図はこの考案のサ
ブマージドポンプの全体の配置を示し、Ｇは地面
の水準であり、１は地下の井戸とかタンクを示し
ている。１０は、サブマージドモータポンプであ
つて、２はモータ、３はストレーナ、４はポンプ
である。更に５はチエツキ弁、６は吐出管、７は
吐出バルブ、８は吐出パイプであつて、矢印Ｄは
吐出方向を示している。 To explain the figures, Fig. 1 shows the overall arrangement of the submerged pump of this invention, where G is the ground level and 1 indicates an underground well or tank. 10 is a submerged motor pump, 2 is a motor, 3 is a strainer, and 4 is a pump. Furthermore, 5 is a check valve, 6 is a discharge pipe, 7 is a discharge valve, 8 is a discharge pipe, and arrow D indicates the discharge direction.
この考案においては、チエツキ弁５の直上で、
吐出管６から、ドレン配管９を引き出し、地上ま
で出している。１１は吐出管上部に取りつけた圧
力源接続口であつて、ポンプ停止時には、ここか
ら例えばN2ガスの如き圧力ガスを吐出管に導入
し、ドレン配管９から弁１２を介して矢印Ｆに示
す如く吐出管内の液を抜き出すものである。 In this invention, immediately above the check valve 5,
A drain pipe 9 is pulled out from the discharge pipe 6 and extends to the ground. Reference numeral 11 denotes a pressure source connection port attached to the upper part of the discharge pipe, and when the pump is stopped, pressure gas such as N2 gas is introduced into the discharge pipe from the drain pipe 9 through the valve 12 as shown by arrow F. This is to draw out the liquid inside the discharge pipe.
第２図はポンプとチエツキ弁の部分を取り出し
て示した側断面図であつて、２はモータ、３はス
トレーナ、４はポンプを示し、矢印Ｒで示す如く
液をストレーナから吸いこむものである。４１は
ポンプ主軸、４２はポンプ羽根、２４はポンプ軸
とモータ軸との継手である。 FIG. 2 is a side sectional view showing the pump and check valve, in which 2 is a motor, 3 is a strainer, and 4 is a pump, which sucks liquid from the strainer as shown by arrow R. 41 is a pump main shaft, 42 is a pump blade, and 24 is a joint between the pump shaft and the motor shaft.
５はチエツキ弁を示し、５１は弁ケーシング、
５２は弁体、５３は弁ケーシングに一体に取りつ
けられたリブ、５４は弁体とリブの間のバネ、５
５は弁座、５６は弁体にあいたドレン孔、５７は
リブにあいたドレン孔、５８はリブの内側にある
弁体のストツパー、５９はリブの内側のバネ座を
夫々示している。 5 indicates a check valve, 51 indicates a valve casing,
52 is a valve body, 53 is a rib integrally attached to the valve casing, 54 is a spring between the valve body and the rib, 5
5 is a valve seat, 56 is a drain hole in the valve body, 57 is a drain hole in a rib, 58 is a stopper of the valve body inside the rib, and 59 is a spring seat inside the rib.
図はポンプ運転中の状態で、弁体５２はポンプ
吐出圧のためバネ５４に抗して上昇し、ストツパ
ー５８に接している。液体はリブの間を通つて矢
印Ｄで示す如く吐出管に向つて上昇する。 The figure shows a state in which the pump is in operation, and the valve body 52 is raised against the spring 54 due to the pump discharge pressure and is in contact with the stopper 58. The liquid passes between the ribs and rises toward the discharge tube as shown by arrow D.
ポンプが停止すると弁体はバネ５４により下方
に動き弁座５５に着座し、吐出管内の液の逆流を
阻止する。そしてリブ５３と弁体５２の間はあい
てくる。しかし吐出管内の液は前記の如く少量づ
つリブ５３と弁体５２の間、ならびにドレン孔５
６から下方に流下し、タンクや井戸内に漏出す
る。この考案ではポンプ停止時に、圧力源接続口
１１からN2ガスの如き圧力ガスを吐出管６に導
入し、ドレン配管９から液を抜き出すものであ
る。その際ドレン配管９の方の抵抗がドレン孔、
５６の抵抗より小さいので液はドレン配管の方に
流れる。 When the pump is stopped, the valve body is moved downward by the spring 54 and seats on the valve seat 55, thereby preventing backflow of liquid in the discharge pipe. Then, there is a space between the rib 53 and the valve body 52. However, as mentioned above, the liquid in the discharge pipe is leaked little by little between the rib 53 and the valve body 52 and into the drain hole 5.
6 flows downward and leaks into tanks and wells. In this invention, when the pump is stopped, a pressure gas such as N2 gas is introduced into the discharge pipe 6 from the pressure source connection port 11, and liquid is drawn out from the drain pipe 9. At that time, the resistance of the drain pipe 9 is the drain hole,
56, the liquid flows toward the drain pipe.
この考案はこのような構成であつて、タンクや
井戸内の液位によつて運転を制御するサブマージ
ドモータポンプにおいて、簡単な構成でポンプの
無意味なオン−オフ運転をくりかえすことなく、
吐出管内の液をポンプ停止時に抜き出すことがで
きるものである。 This invention has such a configuration, and in a submerged motor pump whose operation is controlled by the liquid level in a tank or well, it has a simple configuration and eliminates the need for meaningless repeated on-off operation of the pump.
The liquid inside the discharge pipe can be extracted when the pump is stopped.
第１図はこの考案のサブマージドポンプの全体
配置図、第２図はポンプとチエツキ弁の部分を取
り出して示した側断面図を夫々示す。
符号の説明、１……井戸又はタンク、２……モ
ータ、３……ストレーナ、４……ポンプ、５……
チエツキ弁、６……吐出管、７……吐出バルブ、
８……吐出ライン、９……ドレン配管、１０……
サブマージドモータポンプ、１１……圧力源接続
口、１２……弁、２１……ポンプ軸、２４……継
手、５１……弁ケーシング、５２……弁体、５３
……リブ、５４……バネ、５５……弁座、５６…
…ドレン孔、５７……リブの孔、５８……弁体ス
トツパー、５９……バネ座。
FIG. 1 shows the overall layout of the submerged pump of this invention, and FIG. 2 shows a side sectional view of the pump and check valve. Explanation of symbols, 1... Well or tank, 2... Motor, 3... Strainer, 4... Pump, 5...
Check valve, 6...discharge pipe, 7...discharge valve,
8...Discharge line, 9...Drain piping, 10...
Submerged motor pump, 11... Pressure source connection port, 12... Valve, 21... Pump shaft, 24... Joint, 51... Valve casing, 52... Valve body, 53
...Rib, 54...Spring, 55...Valve seat, 56...
...Drain hole, 57...Rib hole, 58...Valve body stopper, 59...Spring seat.
Claims (1)
サブマージドモータポンプにおいて、上部に圧力
ガス供給用の接続口が設けられているポンプ自体
の吐出管のほかに、ポンプ停止時に吐出管内の液
体を取り除くためのドレン配管を、ポンプ部の上
部に配設されているドレン配管より抵抗の大きい
ドレン孔を有するチエツキ弁の上方で、吐出管に
開口していて、そこから地上部まで達する如く設
けてあることを特徴とするサブマージドポンプ。 In a submerged motor pump where the pump and motor are integrated and immersed in the liquid, in addition to the discharge pipe of the pump itself, which has a connection port for supplying pressure gas at the top, the liquid in the discharge pipe is drained when the pump is stopped. A drain pipe for removing the water is installed above the check valve, which has a drain hole with a higher resistance than the drain pipe installed at the top of the pump section, and opens into the discharge pipe so as to reach the ground level from there. A submerged pump characterized by:
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP5347583U JPS59159795U (en) | 1983-04-12 | 1983-04-12 | submerged motor pump |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP5347583U JPS59159795U (en) | 1983-04-12 | 1983-04-12 | submerged motor pump |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS59159795U JPS59159795U (en) | 1984-10-26 |
| JPS6231680Y2 true JPS6231680Y2 (en) | 1987-08-13 |
Family
ID=30183820
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP5347583U Granted JPS59159795U (en) | 1983-04-12 | 1983-04-12 | submerged motor pump |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS59159795U (en) |
Families Citing this family (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP4707406B2 (en) * | 2005-02-15 | 2011-06-22 | 株式会社荏原製作所 | Safety valve apparatus for depositing underground liquid and apparatus and method for preventing deposit accumulation |
| US20240011492A1 (en) | 2020-11-27 | 2024-01-11 | Ebara Corporation | Fluid-path switching apparatus and method of preventing idling rotation of submersible pump |
| JP7804533B2 (en) | 2022-05-26 | 2026-01-22 | 株式会社荏原製作所 | Method for starting and stopping pump devices connected in series |
| CN119213222A (en) | 2022-05-26 | 2024-12-27 | 株式会社荏原制作所 | Drying method, cooling method and heating method of pump device |
Family Cites Families (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS496205U (en) * | 1972-04-15 | 1974-01-19 | ||
| JPS56152880U (en) * | 1980-04-16 | 1981-11-16 |
-
1983
- 1983-04-12 JP JP5347583U patent/JPS59159795U/en active Granted
Also Published As
| Publication number | Publication date |
|---|---|
| JPS59159795U (en) | 1984-10-26 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| JPS6231680Y2 (en) | ||
| RU2652969C2 (en) | Device for water supply from the well to tower and its automatic drain valve | |
| CA2514706C (en) | Pumping system | |
| RU2222671C2 (en) | Device for delivering water from well into tower and its automatic drain valve | |
| CN109353450B (en) | A ship emergency drainage device and method | |
| CA1241252A (en) | Non-return device | |
| US3432992A (en) | Method and apparatus for removing dispersed liquids from the ground | |
| EA005439B1 (en) | Liquid seal pump of the helical screw type | |
| JPH0143188B2 (en) | ||
| JP2005127119A (en) | Draining device in rainwater infiltration basin | |
| CN209441550U (en) | Emergency drainage device for ship | |
| JP2000328613A (en) | Water supply system | |
| US20020054818A1 (en) | Water supply system and pump apparatus therefor | |
| JPS5916544Y2 (en) | Automatic water pump air supply device | |
| US9399571B2 (en) | Overflow valve prevention system | |
| JP2937293B2 (en) | Vertical pump with intake opening and closing device | |
| CN214118491U (en) | Self-priming pump | |
| RU2320826C2 (en) | Device for water extraction from well and automatic discharge valve | |
| JPH04119700U (en) | liquid pump | |
| JP3029993U (en) | pump | |
| JPS60216094A (en) | Submergible motor pump | |
| RU2067223C1 (en) | Device for starting centrifugal pump | |
| JPH0330637Y2 (en) | ||
| JP2024176522A (en) | Pumping equipment for lifting or siphoning water | |
| JP2003082724A (en) | Sewage pumping equipment |