JPS58143189A - Pump starting device for pump unit - Google Patents
Pump starting device for pump unitInfo
- Publication number
- JPS58143189A JPS58143189A JP2633382A JP2633382A JPS58143189A JP S58143189 A JPS58143189 A JP S58143189A JP 2633382 A JP2633382 A JP 2633382A JP 2633382 A JP2633382 A JP 2633382A JP S58143189 A JPS58143189 A JP S58143189A
- Authority
- JP
- Japan
- Prior art keywords
- pump
- tank
- casing
- liquid
- suction
- 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.)
- Granted
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
- F04D9/00—Priming; Preventing vapour lock
- F04D9/02—Self-priming pumps
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Structures Of Non-Positive Displacement Pumps (AREA)
Abstract
Description
【発明の詳細な説明】
こOia明は、それ自体に自吸能力を有しない卑容積委
のポンプを貯液タンクに設置してなるボンブエエッ)に
おいて、ポンプに合せて鋏備される自吸用補助タンクに
よつてポンプを起動し得るようになしたポンプ起動装置
に関するものである。[Detailed description of the invention] This Oia Ming is a self-priming pump that is installed in a storage tank with a low-capacity pump that does not have self-priming ability. The present invention relates to a pump starting device capable of starting a pump using an auxiliary tank.
本発明は、自吸用の補助タンクとして下部タンクをポン
プの下方に、上部タンクな外周に配置することによりポ
ンプユニットを設置する投影床面積を縮少させ、装置の
小型軽量化、取扱いの簡素化を図るとと本に、吸上管を
貯溜タンクの下方忙開口させてポンプの自吸可能な吸上
げ高さの笥囲を高めてポンプ作動の確動守定仕を図るこ
とを目的とする。The present invention reduces the projected floor area on which the pump unit is installed by arranging the lower tank as an auxiliary tank for self-priming below the pump and around the outer periphery of the upper tank, making the device smaller and lighter, and easier to handle. The purpose of this project is to open the suction pipe downwardly in the storage tank to increase the suction height that allows the pump to self-prime, and to ensure reliable operation of the pump. do.
以下本発明を51!施例に基づいて説明する。本例のポ
ンプ起動装置け、第1図のように貯溜タンク(主タンク
ともいう)1に設置されたポンプ2におけるケーシング
4の外回シに自吸用の下部タンク13と上部タンク14
とを設置している。まずポンプ2は、ブラケット3を介
してモータ6により駆動される公知の多段遠心型が採用
されてお〕、主タンク1の上蓋1&Kff脱可能に設置
されたポンプ2におけるケーシング4内の各1i!5毎
に、モー#6によ)回転される軸7に連結した羽根車e
が6段Klうて配設されている。Below are 51 details of the present invention! This will be explained based on an example. As shown in FIG. 1, the pump starting device of this example has a lower tank 13 and an upper tank 14 for self-priming on the outer side of a casing 4 in a pump 2 installed in a storage tank (also called a main tank) 1.
and has been set up. First, the pump 2 is a known multi-stage centrifugal type driven by a motor 6 via a bracket 3], and the upper lid 1 & Kff of the main tank 1 are removably installed in each 1i! every 5, an impeller e connected to a shaft 7 rotated (by motor #6)
are arranged vertically in 6 stages.
斯るポンプ2にあって、ケーシング4の底部4&の中央
に、吸込口9が形成されて>b、この吸込口9に合せて
円筒形の吸込管10が垂設されている。@込管10は、
吸込口9に1通ずる吸込路11を形成して吸込口9を実
質的に下方へ有効に延長している。12は上段室5と連
通されたポンプの吐出管で、ポンプユニ、トにおける他
装置に接続す嘴し管は図示省略する。In such a pump 2, a suction port 9 is formed in the center of the bottom 4& of the casing 4, and a cylindrical suction pipe 10 is vertically arranged in line with the suction port 9. @Include pipe 10 is
A suction passage 11 is formed that communicates with the suction port 9 to effectively extend the suction port 9 substantially downward. 12 is a discharge pipe of the pump communicating with the upper chamber 5, and a beak pipe connected to other devices in the pump unit is not shown.
前laoケーVング4には、ケーシングの底部4&側に
形成された下部タンク13とケーシングの筒部4b偶に
形成された上部タンク14とが装着され、下部タンク1
3と上部タンク14とは通路15で連通している。そし
て下部タンクI%13の下部16に/fi鋳記後記吸込
管10端が開口している。A lower tank 13 formed on the bottom 4 side of the casing and an upper tank 14 formed on the cylindrical portion 4b of the casing are attached to the front lao casing V-ring 4.
3 and the upper tank 14 are communicated through a passage 15. The end of the suction pipe 10 is opened in the lower part 16 of the lower tank I%13.
1Iir紀ケーVング4の筒部4bと上部タンク14と
は連通孔17で連通され、また上部タンク16に吸上管
18が垂下連結されている。上記連通孔17は、ポンプ
停止時にケーシング4内の空気を上部タンク14へ流入
可能とするための4ので、小孔とされそして中段の室5
を連通するレベルに設置されている。一方上鮎吸上管1
8は、ポンプ作用に適した内径とされその開口下端を前
記主タンク1の貯液W中に没入している。そしてポンプ
停止時に上部タンク14内のWI面レベルを所!位智に
保持するなめに、同タンク14と連通する吸上管18の
開口上端19を、下段の羽根車8よ)上方に設定して前
記連通孔17と連通可能にされている。またポンプ起動
時に下部タンク13内の液面が吸込管10の下端部まで
低下しないうちに@上管18内を貯液Wが上昇して下部
タンク13に補給されるようにするため罠、下部タンク
110内容積であって吸込管10の下端以上でかつ吸込
管10の外春積を除いた容積が吸上管18の内容積よ如
充分大きく設定されている。The cylindrical portion 4b of the 1Iir case Ving 4 and the upper tank 14 are communicated with each other through a communication hole 17, and a suction pipe 18 is connected to the upper tank 16 in a downward manner. The communication hole 17 is a small hole to allow air in the casing 4 to flow into the upper tank 14 when the pump is stopped, and the middle chamber 5
It is installed at a level that communicates with the On the other hand, upper sweetfish suction pipe 1
Reference numeral 8 has an inner diameter suitable for pumping action, and its opening lower end is immersed in the liquid storage W of the main tank 1. Then, when the pump is stopped, check the WI surface level in the upper tank 14! In order to keep it in position, the open upper end 19 of the suction pipe 18 communicating with the tank 14 is set above the lower impeller 8 so that it can communicate with the communication hole 17. In addition, in order to allow the stored liquid W to rise in the upper pipe 18 and be replenished to the lower tank 13 before the liquid level in the lower tank 13 drops to the lower end of the suction pipe 10 when the pump is started, a trap is installed in the lower part. The internal volume of the tank 110, which is equal to or larger than the lower end of the suction pipe 10 and excludes the outer spring volume of the suction pipe 10, is set to be sufficiently larger than the internal volume of the suction pipe 18.
前述のように構成された本例装置のポンプ作動について
要約説明する。ポンプ起動に先立ち、まず初めに呼び液
を呼び液口から注入する。この結果第1#4のように呼
び液W′が、ケーシング4内の下段、中段の各1i!5
及び吸込管10の吸込路11そして下部タンク15及び
上部タンク14内にI力貯溜されて吸上管18の開口上
端19(図示CYベベルまで充填する。かくして、ポン
プの起動準備が売子する。なおCレベル以上に注入され
る余分な呼び液は、@土管、1日を介して主タンク1の
貯溜W4Rされる。A summary explanation will be given of the pump operation of this example device configured as described above. Before starting the pump, first inject the priming liquid through the priming port. As a result, as shown in No. 1 #4, the priming liquid W' is applied to each of the lower and middle stages of the casing 4 to 1i! 5
The I force is stored in the suction passage 11 of the suction pipe 10, the lower tank 15, and the upper tank 14, and the suction pipe 18 is filled up to the opening upper end 19 (CY bevel shown).In this way, the pump is ready to start. It should be noted that the excess priming liquid injected above the C level is stored in the main tank 1 W4R through @earth pipe and one day.
このもとでポンプ2を起動すると、呼び液中の各羽根車
80回転に伴なうポンプ作用により第2閣のようにヶ、
−シング4の各室5内の液体W′が順次吸とげられて吐
出管12から他岐着へ給送される一方、下部タンク13
内の呼び液W′が張込管10の畷込路11及び吸込口9
を流通して各室5内に9込まれる。下部タンク13内の
呼び液の液面の低下に伴ない上部タンク14内の液面も
低下して負圧とな力、これに起因して主タンク1内O貯
液Wが吸上管18を上昇して吸上げられ遂には開口上端
19から通路15を介して下部タンク15内に補給され
、以降貯液の補給のもとてポンプ作動が継続される。When the pump 2 is started under this condition, the pump action caused by the 80 revolutions of each impeller in the priming liquid causes the pump to move like the second cabinet.
- The liquid W' in each chamber 5 of the thing 4 is sucked up one after another and fed from the discharge pipe 12 to the other terminals, while the lower tank 13
The priming liquid W' in
is distributed into each chamber 5. As the liquid level of the priming liquid in the lower tank 13 decreases, the liquid level in the upper tank 14 also decreases, resulting in negative pressure, which causes the O liquid stored in the main tank 1 to flow into the suction pipe 18. The liquid rises and is sucked up, and is finally replenished into the lower tank 15 through the passage 15 from the opening upper end 19, and thereafter the pump operation is continued by replenishing the stored liquid.
特に上記ポンプ起動については、前述の下部タンク13
0専横が重要な機能をはたす、すなわち下部タンク13
の内容積であって吸込管10の下端以上でかつ吸込管1
0の外容積を除いた容積が吸上管18の内容積よ)充分
大きく設定されている。したがうでポンプ起動の開始に
つれて下部タンク13内の液が吸込管10の下端部(図
示Bレベル)に低下するまでの関に@上管18内を貯液
Wが上昇して遂には下部タンク13Kllf1給される
のでポンプ作動が継続し得る。従って例えばポンプ2の
高速運転によ)下部!ンク13内の液が比較的早く減少
しようと4、上記Bレベルまでに低下する間に下部タン
ク13内の電圧変化に伴ない前述のように貯液Wを有効
かつ充分に吸上げ補給し得るので、貯溜の補給遅れや補
給不足をなくして適切な補給を確保し得る。これによ〕
下部タンり13内の液がBvレベルり低下すること、こ
れに伴ないポンプ作動が空運転となって吸上停止するこ
と、等の事態を積極的に回避して円滑なポンプ作動を常
に安定して継続できる。Especially for starting the pump, the above-mentioned lower tank 13
0 monopolization performs an important function, namely the lower tank 13
The internal volume of the suction pipe 10 is greater than or equal to the lower end of the suction pipe 10, and
The volume excluding the external volume of 0 is set to be sufficiently large (the internal volume of the suction pipe 18). Therefore, as the pump starts to start, until the liquid in the lower tank 13 drops to the lower end of the suction pipe 10 (level B in the figure), the stored liquid W rises in the upper pipe 18 and finally reaches the lower tank 13Kllf1. pump operation can continue. Therefore, for example due to high speed operation of pump 2) lower part! Although the liquid in the tank 13 decreases relatively quickly, the stored liquid W can be effectively and sufficiently sucked up and replenished as described above as the voltage changes in the lower tank 13 while the liquid decreases to the level B. Therefore, it is possible to eliminate delays in replenishment and shortages in storage and ensure appropriate replenishment. For this]
Smooth pump operation is always maintained by proactively avoiding situations such as the liquid in the lower tank 13 dropping to the Bv level and the pump operation running dry due to this and stopping suction. You can continue by doing so.
なおポンプ作動中連通孔17から液洩れするとしても少
量であることからポンプ効率の損失は極めて小プい。Even if liquid leaks from the communication hole 17 during pump operation, it is only a small amount, so the loss of pump efficiency is extremely small.
次に所定量の送液をなしてポンプ2を停止するときの作
動について説明する。吐出管12、ケーシング4、吸込
管1a、下部タンク13、通路15゜ト部タンク14及
び吸上管18内の液が、サイホン作用により主タンク1
側に逆流する。この過程で連通孔17が重要な機能を果
し、ケーシング4内のilI面が連通孔17まで下降す
るとケーシング4内の空電が連通孔17を経て上部タン
ク14内に流入されることKよ郵、緒条的にケーシング
4及び下部タンク13内の液面レベルは、吸上管18の
開口上端19(図示Cレベル)よ〕低下することなく゛
吸上管18内の液面のみが低下することになカ第3−〇
状態で安定する。かくして下段の羽根車8の位置(図示
レベル)よ)上方に液が保持されることになル、ポンプ
2が再起動可能とされる。Next, the operation when stopping the pump 2 after feeding a predetermined amount of liquid will be explained. The liquid in the discharge pipe 12, casing 4, suction pipe 1a, lower tank 13, passage 15° tank 14, and suction pipe 18 flows into the main tank 1 by siphon action.
backflow to the side. In this process, the communication hole 17 plays an important function, and when the ilI surface in the casing 4 descends to the communication hole 17, static electricity in the casing 4 flows into the upper tank 14 through the communication hole 17. Technically, the liquid level in the casing 4 and the lower tank 13 does not fall below the opening upper end 19 of the suction pipe 18 (level C in the figure), and only the liquid level in the suction pipe 18 falls. In particular, it stabilizes in state 3-0. In this way, the liquid is maintained above the position of the lower impeller 8 (level shown), and the pump 2 can be restarted.
なお、図において個別に形成とれ、通路15で連通畜れ
ている下部タンク15と上部タンク14とを一体的に形
成しその他の関係を前述のとお〕とすることも本発明の
要Wとする。−1!らに図示連通孔17には、ポンプの
起動、運転中は閉、停止中は開とする適宜開閉部材を必
要に応じて付設してもよいし、そのように開閉する部材
を付設した連通孔17によつて上部タンクを大剣に連通
してもよい、tた下部タンク13又は上部タンク14に
呼び液口を設電してもよい、勿論ポンプ2け一段型式で
もよい。Note that it is also essential to the present invention that the lower tank 15 and the upper tank 14, which are formed separately in the figure and communicated through a passage 15, be integrally formed and other relationships are as described above. . -1! In addition, the illustrated communication hole 17 may be provided with an appropriate opening/closing member as required to close when the pump is started or running, and open when the pump is stopped, or a communication hole provided with such an opening/closing member. 17, the upper tank may be connected to the main tank, or a priming port may be installed in the lower tank 13 or the upper tank 14. Of course, a two-pump, one-stage type may also be used.
このように本発明のポンプ粕動装蓋は、貯溜タンクに設
置した非容積型のポンプに自吸能力を持たせて同タンク
内の液体を吸上げて給送するポンプユニットにおいて、
前記ポンプのケーシングO吸込口に連通して軸方向へ延
長した適宜長さの吸込管と、との吸込管の下端をその下
部で開口させケーシングの°、’ 7 K鋳着され良下
部タンクと、この下部タンクと連通し前記ケーシングの
外周に鋳着され九上部タンクと、この上部タンクに連結
され開口上端を前記貯溜タンクの液中に没入し開口上端
な前記ポンプの最下部の羽根車よ)上方における上部り
シタ内の所定位置に臨ませた吸上管と、前記上部タンク
に形成畜れIポンプ停止時e’cltlケーVング内の
空気をこの上部タンク内に流入可能とする連通孔と、を
設けてなるもので、所定量の呼び液を一旦注入すれば以
降は呼び液不要にしてポンプ超勤により下部タンク側の
液を啜込んで給送する一方、ewxタンクの貯液を吸上
げて補給してポンプ作動を##L、そしてポンプを停止
して本ケーVング及び下部タンクに所定量に液を清音確
保して次期ポンプ運転時にはスムーズKle液伶動を行
ない得る。As described above, the pump filtration equipment lid of the present invention is a pump unit that provides a self-priming ability to a non-displacement pump installed in a storage tank to suck up and feed liquid in the tank.
A suction pipe of an appropriate length that communicates with the casing O suction port of the pump and extends in the axial direction, and the lower end of the suction pipe is opened at the lower part of the casing, and a good lower tank is formed by molding the casing. , an upper tank that communicates with this lower tank and is cast on the outer periphery of the casing, and an impeller at the lowermost part of the pump that is connected to this upper tank and whose open upper end is immersed in the liquid of the storage tank. ) A suction pipe facing a predetermined position in the upper part of the upper tank and a connection formed in the upper tank to allow air in the e'cltl cage to flow into the upper tank when the pump is stopped. This device is equipped with a hole, and once a predetermined amount of priming liquid is injected, no priming liquid is required after that, and the liquid in the lower tank is sucked in and fed by pump overtime, while the liquid stored in the ewx tank is pumped. The pump is sucked up and replenished, the pump is operated ##L, and the pump is stopped to ensure a predetermined amount of liquid in the main casing and lower tank, allowing smooth Kle liquid movement during the next pump operation.
斯る本羨[において、ケーシングの外図力に補助タンク
を一体に組付は得るととくよ如、鋏璽全体の小型軽量化
1■設置スペースを可及的に小さくし得るとともに、装
置の設置や交換等を賽轟にし得、その上J11匁や輸送
等を秦にかつ安価にできる。In this case, it is recommended that the auxiliary tank be integrated with the external force of the casing, so that the overall size and weight of the scissors can be reduced 1. The installation space can be made as small as possible, and the installation space of the device can be In addition, J11 momme, transportation, etc. can be done easily and inexpensively.
特に本発明装置では、前記ケーシングの吸込口に適宜長
さの吸込管を連−し九ことkよシ、間管の開口下瑠を前
記下部タンクと連通ずる吸入口とし得ることを以−)″
CケーVングの吸込口の有効な延長化を図カ得るので、
ポンプ起動、運転時において下部タンク内の液が吸込管
の下端部に低下するまでの範囲KMI)確実に吸込み得
、吸込み能力を高め得る。従ってポンプの空作動、吸込
み不能をなくして費!したポンプ作動ひいては送液を適
確になし得る。In particular, in the device of the present invention, a suction pipe of an appropriate length is connected to the suction port of the casing, and the lower opening of the interpipe can be used as the suction port communicating with the lower tank. ″
Since the suction port of the C cable can be effectively extended,
When the pump is started and operated, the range (KMI) until the liquid in the lower tank drops to the lower end of the suction pipe can be reliably sucked and the suction capacity can be increased. Therefore, you can save money by eliminating dry operation of the pump and inability to suck. The pump operation and thus the liquid delivery can be performed accurately.
上述のように@上管を砥畏化することに伴ない下部タン
クの容積を大きくする必要があるものの必要最小容積な
以うて九カ大型化を抑制でき、またケーシングの下方へ
砥長されるだけであるから貯溜タンク内の余剰スペース
を利用して何ら無理なく収容でき、@上管の砥長すなわ
ちポンプの自吸可能な吸上高さの範囲を高くすることに
対する特別な技術を不要とし得る。As mentioned above, although it is necessary to increase the volume of the lower tank due to the grinding of the upper pipe, the required minimum volume can suppress the increase in size, and it is possible to reduce the size of the tank by increasing the size of the tank. Because it is only 100%, it can be accommodated without any difficulty using the surplus space in the storage tank, and there is no need for special technology to increase the height of the upper pipe, that is, the range of the suction height at which the pump can self-prime. It can be done.
図は本発明の実施例を示すもので、@1図は本例装置を
一部破断して示す正面図、第2図、第3図は夫々ポンプ
作動を例示する説明図である。
1・・・貯溜タンク 2・・・ポンプ4・・・ケ
ーVング 5・・・室
6−・モータ 8・・・羽横車9・・・吸込
口 10・・・吸込管13・・・下部タンク
14・・・上部タンク17・・・111通孔
18・・・吸、ト管出 −人 富士電機製造株
式会社
代 珊 人 弁理士 岡 1)英 彦第1図
第2WJThe drawings show an embodiment of the present invention, and Fig. 1 is a partially cutaway front view of the device of the present invention, and Figs. 2 and 3 are explanatory diagrams illustrating pump operation, respectively. 1... Storage tank 2... Pump 4... Case Ving 5... Chamber 6-- Motor 8... Wing wheel 9... Suction port 10... Suction pipe 13... lower tank
14... Upper tank 17... 111 hole
18... Intake, Tokane - Person Fuji Electric Manufacturing Co., Ltd. Representative San San Patent attorney Oka 1) Hidehiko Figure 1 Figure 2 WJ
Claims (1)
走せて同タンク内の液体を吸上げて輸送するポンプユニ
ットにおいて、前記ポンプのケーシングの吸込口に連通
して軸方肉へ砥畏した適宜最さの吸込管と、この吸込管
の下端をその下部で開口さ′せ、ケーシングの下方に装
着された下部タンクと、この下部タンクと連通し前記ケ
ーシングの外周(装着きれた上部タンクと、この、ト部
タンクに連結され開口下端を前記貯溜タンクの液中に没
入し開口上端を前記ポンプの量下部の羽櫻車より上方に
かける上部タンク内の所定位fllK瑠重せた11)、
管と、1III記上部タンクに形成されポンプ停止時K
lII紀ケーVング内の9幇をこの上部タンク内に流入
可能とする連通孔と、を設けてなるを特徴とするポンプ
起動物置。Installed in a storage tank to provide self-priming capability to a non-displacement pump.
In a pump unit that runs to suck up and transport liquid in the same tank, a suitably highest suction pipe that communicates with the suction port of the pump casing and is ground to the axial wall, and a lower end of this suction pipe. A lower tank is opened at the lower part of the casing and is connected to the outer periphery of the casing. 11), immersed in the liquid in the tank and placed the upper end of the opening above the impeller wheel at the bottom of the pump at a predetermined position in the upper tank;
The pipe is formed in the upper tank described in 1III and K when the pump is stopped.
A pump-starting shed characterized by being provided with a communication hole that allows nine pipes in the III period cage to flow into the upper tank.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP2633382A JPS58143189A (en) | 1982-02-19 | 1982-02-19 | Pump starting device for pump unit |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP2633382A JPS58143189A (en) | 1982-02-19 | 1982-02-19 | Pump starting device for pump unit |
Publications (2)
Publication Number | Publication Date |
---|---|
JPS58143189A true JPS58143189A (en) | 1983-08-25 |
JPS646357B2 JPS646357B2 (en) | 1989-02-02 |
Family
ID=12190496
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP2633382A Granted JPS58143189A (en) | 1982-02-19 | 1982-02-19 | Pump starting device for pump unit |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS58143189A (en) |
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS62191U (en) * | 1985-06-15 | 1987-01-06 | ||
EP2505842B1 (en) | 2011-03-29 | 2019-12-25 | Grundfos Management a/s | Multi stage centrifugal pump system |
-
1982
- 1982-02-19 JP JP2633382A patent/JPS58143189A/en active Granted
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS62191U (en) * | 1985-06-15 | 1987-01-06 | ||
EP2505842B1 (en) | 2011-03-29 | 2019-12-25 | Grundfos Management a/s | Multi stage centrifugal pump system |
Also Published As
Publication number | Publication date |
---|---|
JPS646357B2 (en) | 1989-02-02 |
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