JPS588293A - Underwater pump - Google Patents
Underwater pumpInfo
- Publication number
- JPS588293A JPS588293A JP10553681A JP10553681A JPS588293A JP S588293 A JPS588293 A JP S588293A JP 10553681 A JP10553681 A JP 10553681A JP 10553681 A JP10553681 A JP 10553681A JP S588293 A JPS588293 A JP S588293A
- Authority
- JP
- Japan
- Prior art keywords
- submersible
- impeller
- submersible pump
- pump
- diameter
- 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
Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04D—NON-POSITIVE-DISPLACEMENT PUMPS
- F04D13/00—Pumping installations or systems
- F04D13/02—Units comprising pumps and their driving means
- F04D13/06—Units comprising pumps and their driving means the pump being electrically driven
- F04D13/08—Units comprising pumps and their driving means the pump being electrically driven for submerged use
- F04D13/10—Units comprising pumps and their driving means the pump being electrically driven for submerged use adapted for use in mining bore holes
Landscapes
- Engineering & Computer Science (AREA)
- Mining & Mineral Resources (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Structures Of Non-Positive Displacement Pumps (AREA)
Abstract
(57)【要約】本公報は電子出願前の出願データであるた
め要約のデータは記録されません。(57) [Summary] This bulletin contains application data before electronic filing, so abstract data is not recorded.
Description
【発明の詳細な説明】
本発明は小径の井戸に用いる細径型の水中ポンプに係り
、特に高い揚程を得多ことができる水中ポンプに関する
。DETAILED DESCRIPTION OF THE INVENTION The present invention relates to a small-diameter submersible pump for use in small-diameter wells, and particularly to a submersible pump that can obtain a high head.
一般に細１径型の水中ボンツーはその羽根車の直径が小
さいので、充分な羽根車周速が得られず、そ２のため遠
心型ポンプより揚程の発生に有利な摩擦ポンプが使用さ
れている。なお第１図は従来の水中ポンプの概略、外観
図、第２図は第１図のＡ−Ａ断面図である。、第１図、
第２図において、」、２は多段型水中ポンプのそれぞれ
一段目、二段目羽根車、４は当該水中ポンプの動力源で
ある水中モータ、２１はポンプケーシング、５は前記羽
根車１．２に囲繞する水通路、７は前記水通路５を仕切
る隔壁で、当該水中ボンダの吸込部と吐出部との間に設
置され、圧力水が還流するのを防止するためのもの、１
６は吐出管、８は前記水中モータ４を駆動させるための
地上の電源（図示せずンに一端が接続され、他端が当該
水中モータ４に接続する水中ケーブル、３は前記水中モ
ータ４の軸、２０は前記羽根車１．２の羽、２７は井戸
の内壁である。このような構成の従来の水中ポンプは、
その羽根車１．２の直径をできるだけ大きくするために
当該水中ポンプを設置する井戸の内壁２７と水中モータ
４の最、大外径との間隔は数ｍｍｓ度と極端に小さく設
定されている。そして吐出管１６の外壁に沿って設けで
ある水中ケーブル８の外側は水中モータ４の外径からは
み出さない−ように構成され、またポンプケーシング２
１の外壁の外径寸法は前記水中ケーブル８の内側に合わ
せてある。そして前記ポンプケーシング２１の厚さと、
隔壁７および水道路５の幅を差し引いて羽根車１゜２の
直径が定まる。なお当該水中ポンプの中心全水中モータ
４の中心から偏心させることは望ましくないので、図か
ら明らかなように水中ケーブル８の太さの２倍の寸法で
当該ポンプ部の寸法を縮小しなければならない。このよ
うな構成の従来の水中ポンプにあっては１．当該ボンダ
の羽根車の直径は非常に小さく縮小され、充分な羽根車
周速が得られない。また水中ポンプの揚程は羽根車の回
転速度が一定の場合、はぼ羽根車の直径の２乗に比例す
るため、当該水中ポンプを細径化する程、水中ケーブル
８の太さの影響をまともに受けてしまう。しかしこの摩
擦ポンプが使用されている水中ポンプは、吸込側から水
を吸入してエネルギ金付与しつつ高圧水として吐出側か
ら吐出するが、この吸込部と吐出部との間に、前記高圧
水の還流を防止するために設けられた前記隔壁７が一つ
のデッドスペースを構成している。In general, single-diameter submersible bontues have small impeller diameters, making it impossible to obtain sufficient circumferential speed of the impeller.For this reason, friction pumps are used, which are more advantageous in generating head than centrifugal pumps. . Note that FIG. 1 is a schematic and external view of a conventional submersible pump, and FIG. 2 is a sectional view taken along the line AA in FIG. , Figure 1,
In FIG. 2, 2 is the first and second stage impellers of a multi-stage submersible pump, 4 is the submersible motor which is the power source of the submersible pump, 21 is the pump casing, and 5 is the impeller 1.2. 7 is a partition wall that partitions the water passage 5 and is installed between the suction part and the discharge part of the underwater bonder to prevent pressure water from flowing back; 1
Reference numeral 6 indicates a discharge pipe; 8 indicates a submersible cable having one end connected to a ground power source (not shown) and the other end connected to the submersible motor 4; 3 a submersible cable connected to the submersible motor 4; The shaft, 20 is the blade of the impeller 1.2, and 27 is the inner wall of the well.A conventional submersible pump with such a configuration is
In order to make the diameter of the impeller 1.2 as large as possible, the distance between the inner wall 27 of the well in which the submersible pump is installed and the largest outer diameter of the submersible motor 4 is set to be extremely small, at several millimeters. The outside of the submersible cable 8 provided along the outer wall of the discharge pipe 16 is configured so that it does not protrude from the outer diameter of the submersible motor 4, and the pump casing 2
The outer diameter of the outer wall 1 is matched to the inside of the underwater cable 8. and the thickness of the pump casing 21;
The diameter of the impeller 1°2 is determined by subtracting the widths of the partition wall 7 and the waterway 5. Note that it is not desirable to make the center of the submersible pump eccentric from the center of the fully submersible motor 4, so as is clear from the figure, the dimensions of the pump part must be reduced to twice the thickness of the submersible cable 8. . A conventional submersible pump with such a configuration has 1. The diameter of the impeller of the bonder is reduced to a very small size, and a sufficient circumferential speed of the impeller cannot be obtained. In addition, the head of a submersible pump is proportional to the square of the diameter of the impeller when the rotational speed of the impeller is constant, so the smaller the diameter of the submersible pump, the less the influence of the thickness of the underwater cable 8 can be made I get it. However, submersible pumps that use this friction pump suck water from the suction side, give it energy, and then discharge it as high-pressure water from the discharge side. The partition wall 7 provided to prevent the reflux of water constitutes one dead space.
本発明は上記のような従来の水中ポンプの実情に鑑みて
なされたもので、その目的は狭い貴重な空間を充分活用
して可能な限りの高い揚程を得ることのできる水中ポン
プを提供することにある。The present invention was made in view of the actual situation of conventional submersible pumps as described above, and its purpose is to provide a submersible pump that can obtain the highest possible head by fully utilizing a narrow and precious space. It is in.
すなわち本発明の水中ポンプは前記隔壁が一つのデッド
スペースを構成していることに着目し、当該隔壁部に前
記水中ケーブル金配置することにｎ、当該水中ポンプの
羽根車の直径の拡大を図り、これによって揚程の増加を
達成しようとするものである。That is, the submersible pump of the present invention focuses on the fact that the partition wall constitutes one dead space, and by arranging the submersible cable metal in the partition wall part, the diameter of the impeller of the submersible pump is increased. , thereby attempting to increase the head.
以下本発明の水中ポンプを図に基づいて説明する。第３
図は本発明の一実施例の水中ポンプの概略外観図、第４
図は本発明の一実施例の水中ポンプの縦断面図である。The submersible pump of the present invention will be explained below based on the drawings. Third
The figure is a schematic external view of a submersible pump according to an embodiment of the present invention.
The figure is a longitudinal sectional view of a submersible pump according to an embodiment of the present invention.
なお第１図、第２図と同じ符号のものは同一の部品を示
す。本笑施例の水中ポンプは多段型であり、一段目の羽
根車１は二段目羽根車２とともに水中モータ４の軸３の
先端部にキー６によりボス１９を介して固着されている
。Note that the same reference numerals as in FIGS. 1 and 2 indicate the same parts. The submersible pump of this embodiment is of a multi-stage type, and a first-stage impeller 1 and a second-stage impeller 2 are fixed to the tip of a shaft 3 of a submersible motor 4 via a boss 19 with a key 6.
そして一段目羽根車ｌおよび二段目羽根車２は直列に作
動する。水通路５は前記羽根車１．２を囲繞しており、
羽根２０が設けられた羽根車１．２によって加圧された
水を円滑に吐出側に導く作用をする。９は当該ポンプ部
と水中モータ４との間に設けてあり、異物の浸入を阻止
するストレーナ、１１は水中モータ４への水等の浸入を
防止する水封部、１２は当該ポンプ部を支持するステー
、１３は当該ポンプ停止時、下流側からの水の逆流を防
止する逆止弁、１４は前記逆止弁１３のストッパ、１５
はポンプ本体に吐出管１６を接続する接続ねじ、１７は
第３図に示す矢印方向に前記ストレーナ９を通過した水
がポンプ内に吸入される吸込口、２３は前記一段目羽根
車ｌにより加圧された水が吐出する第１吐出口、２４は
前記第１吐出口２３と、隔壁７の幅だけ位置がずれて設
けられる第２吸込口、２２は前記第１吐出口２３と第２
吸込口２４とを連絡する連絡室、１８は前記第１吐出管
１６に連通ずる吐出口、２５は＝＝ニラめ金具、２６は
その止めねじである。そして隔壁７部に、地上からの電
流を水中モータ４に送る水中ケーブル８がその外側を前
記水中モータ４の外壁に合致させ゛て配置しである。な
お１０絋当該水中ケーブル８ｔ−水中モータ４に接続す
る接続具でめる。The first stage impeller 1 and the second stage impeller 2 operate in series. The water passage 5 surrounds the impeller 1.2,
The impeller 1.2 provided with the blades 20 functions to smoothly guide pressurized water to the discharge side. 9 is a strainer provided between the pump section and the submersible motor 4 to prevent foreign matter from entering; 11 is a water seal section that prevents water from entering the submersible motor 4; and 12 is a support for the pump section. 13 is a check valve that prevents water from flowing backward from the downstream side when the pump is stopped; 14 is a stopper for the check valve 13; 15
1 is a connection screw that connects the discharge pipe 16 to the pump body; 17 is a suction port through which water that has passed through the strainer 9 is sucked into the pump in the direction of the arrow shown in FIG. 3; and 23 is a connection screw that connects the discharge pipe 16 to the pump body; A first discharge port through which pressurized water is discharged; 24 is a second suction port provided with a position shifted from the first discharge port 23 by the width of the partition 7; 22 is a second discharge port between the first discharge port 23 and the second suction port.
A communication chamber 18 communicates with the suction port 24, a discharge port 18 communicates with the first discharge pipe 16, 25 a lance metal fitting, and 26 a set screw thereof. An underwater cable 8 for transmitting current from the ground to the underwater motor 4 is arranged in the partition wall 7 with its outer side aligned with the outer wall of the underwater motor 4. In addition, the 10-length underwater cable 8t is connected to the underwater motor 4 using a connector.
なお第５図は第４図のＢ−Ｂ部分の断面図で、隔壁７に
おける水中ケーブル８の配置状態、および第１吐出口２
３と吸込口１７との位置関係を示し、第６図は第４図の
Ｃ−Ｃ部分の断面図で、第１吐出口２３と第２吸込口２
４との連絡室２２による連絡状態金示し、また第７図は
第４図のＤ−Ｄ部分の断面図で一部展開しであるが、吸
込口１７、連絡室２２、第２吸込口２４、吐出口１８の
それぞれの位置関係金示す。FIG. 5 is a cross-sectional view taken along the line B-B in FIG.
3 and the suction port 17, and FIG. 6 is a sectional view taken along the line C-C in FIG.
4, and FIG. 7 is a cross-sectional view taken along line D-D in FIG. , the respective positional relationships of the discharge ports 18 are shown.
このような構成の本発明の水中ボンダにおいて、水中モ
ータ４を駆動すると、水はストレーナ９を経て吸込口１
７より水通路５内に入り、羽根２０が設けられた一段目
の羽根車１の回転によりエネルギを付与されて、第１吐
出口２３から連絡室２２に入り、さらに第２吸込口から
二段目の羽根車２の配置された水通路５内に入り当該羽
根車２によって加圧され、吐出口１８を通過して逆止弁
１３を押し開き吐出管１６を通過して地上に至る。In the underwater bonder of the present invention having such a configuration, when the underwater motor 4 is driven, water passes through the strainer 9 and enters the suction port 1.
The water enters the water passage 5 from 7, is given energy by the rotation of the first stage impeller 1 provided with the blades 20, enters the communication chamber 22 from the first discharge port 23, and then enters the second stage from the second suction port. The water enters the water passage 5 where the impeller 2 is arranged, is pressurized by the impeller 2, passes through the discharge port 18, pushes open the check valve 13, passes through the discharge pipe 16, and reaches the ground.
なお本発明の水中ボ／プは水中ケーブルが、従来の水中
ポンプにおいてデッドスペースである隔壁内に配置しで
あるため、従来よりも大きな直径の羽根車を設置するこ
とができ、故に高い揚程を得ることができる。特に細径
の水中ポンプ程その効果が顕著であり、例えば直径５０
ｍｍの水中ポンプでは従来の水中ポンプよりも羽根車の
直径を約１．３倍に拡大することができ、また揚程は従
来の水中ポンプの約１．７倍に増加させることができる
。In addition, in the submersible pump of the present invention, the submersible cable is placed inside the bulkhead, which is a dead space in conventional submersible pumps, so it is possible to install an impeller with a larger diameter than conventional submersible pumps, and therefore a higher head can be achieved. Obtainable. The effect is particularly remarkable for smaller diameter submersible pumps, for example,
mm submersible pump, the diameter of the impeller can be increased by about 1.3 times as compared to the conventional submersible pump, and the lifting head can be increased by about 1.7 times compared to the conventional submersible pump.
上記のように本発明の水中ポンプは羽根車の直径を大き
くすることができ〜、故に高い揚程を得ることができる
効果がある。またこれにより同じ揚程を得るために羽根
車の段数を少なくすることができ、製造コストも低減で
きる効果がある。As described above, the submersible pump of the present invention has the effect of increasing the diameter of the impeller and therefore being able to obtain a high pumping head. Moreover, this allows the number of stages of impellers to be reduced in order to obtain the same head, which has the effect of reducing manufacturing costs.
第１図は従来の水中ポンプの概路外観図、第２図は第１
図のＡ−Ａ断面図、４第３図は本発明の一実施例の水中
ポンプの概路外観図、第４図は本発明の一実施例の水中
ポンプの縦断面図、第５図は第４図のＢ−Ｂ部分の断面
図、第６図は第４図のＣ−Ｃ部分の断面図、第７図は第
４図のＤ−Ｄ部分の断面図である。
１・・・一段目羽根車、２・・・二段目羽根車、３・・
・軸、４・・・水中モータ、５・・・水通路、６・・・
キー、７・・・隔壁、８・・・水中ケーブル、９・・・
ストレーナ、１０・・・接続具、１１・・・水封部、１
２・・・ステー、１３・・・逆止弁、１４・・・ストッ
パ、１５・・・接続ねじ、１６・・・吐出管、１７・・
・吸込口１．１８・・・吐出口、１９・・・ボス、２０
・・・羽根、２１・・・ケーシング、２２・・・連絡室
、２３・・・第１吐出口、２４・・・第２吸込口、２５
・・・止め金具、２６・・・止めねじ、−２７・・・井
戸の内壁。
′ＪＡ＋ ■
沼２■
鳥 ４ ロ
ー ５ 口
１
”’１４． ｃ ｒＢFigure 1 is a schematic external view of a conventional submersible pump, and Figure 2 is a schematic diagram of a conventional submersible pump.
3 is a schematic external view of a submersible pump according to an embodiment of the present invention, FIG. 4 is a vertical sectional view of a submersible pump according to an embodiment of the present invention, and FIG. 4, FIG. 6 is a sectional view taken along line CC in FIG. 4, and FIG. 7 is a sectional view taken along line DD in FIG. 4. 1...1st stage impeller, 2...2nd stage impeller, 3...
- Axis, 4... Underwater motor, 5... Water passage, 6...
Key, 7... Bulkhead, 8... Underwater cable, 9...
Strainer, 10... Connection tool, 11... Water seal part, 1
2... Stay, 13... Check valve, 14... Stopper, 15... Connection screw, 16... Discharge pipe, 17...
・Suction port 1.18...Discharge port, 19...Boss, 20
...Blade, 21...Casing, 22...Communication chamber, 23...First discharge port, 24...Second suction port, 25
...Fixing metal fitting, 26...Fixing screw, -27...Inner wall of well. 'JA+ ■ Swamp 2 ■ Bird 4 Low 5 Mouth 1 ”'14. cr rB
Claims (1)
水中ポンプにおいて、水中モータを駆動するための地上
の電源と、当該水中ポン１内に設置される前記水中モー
タとを接続する水中ケーブルを、当該水中ポンプの吸込
部と吐出部との間に設置される隔壁部に配置しであるこ
とを特徴とする水中ポンプ。1. In a submersible pump that is installed in a well and pumps water by rotating an impeller, an underwater cable that connects a ground power source for driving the submersible motor and the submersible motor installed in the submersible pump 1. A submersible pump, characterized in that the submersible pump is arranged in a partition installed between a suction part and a discharge part of the submersible pump.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP10553681A JPS588293A (en) | 1981-07-08 | 1981-07-08 | Underwater pump |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP10553681A JPS588293A (en) | 1981-07-08 | 1981-07-08 | Underwater pump |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS588293A true JPS588293A (en) | 1983-01-18 |
Family
ID=14410303
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP10553681A Pending JPS588293A (en) | 1981-07-08 | 1981-07-08 | Underwater pump |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS588293A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS6227741U (en) * | 1985-08-02 | 1987-02-19 | ||
| JPH01179740U (en) * | 1988-06-08 | 1989-12-25 |
-
1981
- 1981-07-08 JP JP10553681A patent/JPS588293A/en active Pending
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS6227741U (en) * | 1985-08-02 | 1987-02-19 | ||
| JPH01179740U (en) * | 1988-06-08 | 1989-12-25 |
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