JP4008621B2

JP4008621B2 - Vertical pump device

Info

Publication number: JP4008621B2
Application number: JP16000499A
Authority: JP
Inventors: 敏次佐瀬
Original assignee: Ebara Corp
Current assignee: Ebara Corp
Priority date: 1999-06-07
Filing date: 1999-06-07
Publication date: 2007-11-14
Anticipated expiration: 2019-06-07
Also published as: JP2000345989A

Description

【０００１】
【発明の属する技術分野】
本発明は清水、汚水、その他の液体を移送・排水・加圧するポンプを具備する立型ポンプ装置に関し、特にポンプの運転に伴って生じる振動が外部に伝搬して振動公害或いは振動伝搬が原因となって生じる騒音公害の発生を防止できる立型ポンプ装置に関するものである。
【０００２】
【従来の技術】
ポンプ運転に伴う振動が基礎や吐出し配管を経由して外部に伝搬するのを防止するために、ポンプ装置（ポンプ、吊下管及び電動機等）を垂直荷重用の防振装置で支持し、吐出口に可撓管を接続すると、ポンプの吐出圧力による推力はポンプの吐出口に掛かり、ポンプを水平方向に移動させるように作用する。ポンプ装置を支持する防振装置は垂直荷重用なのでこの推力を受けることが困難である。そこで、通常はポンプの吐出口に可撓管を接続していない。
【０００３】
また、従来の吸込口が水槽内にあり、吐出口が横方向に開口している立型ポンプは、ポンプを水槽上部の床面上に設置するため、吐出圧力による推力を受ける防振装置を使用することが難しく、ポンプの振動伝搬及び振動に起因する騒音についての対策はポンプ機場の外で行われることが多く、規模が大きくなり、対策費用も高額となるという問題があった。
【０００４】
【発明が解決しようとする課題】
本発明は上述の点に鑑みてなされたもので、振動、騒音に対する規制が厳しくなっている現状で、従来対策が不要であった小型の立型ポンプ装置についても、ポンプ機場境界における騒音や振動をより小さくし、ポンプの振動がポンプ室の床、壁、配管に伝わるのを安価で、且つ簡単な構成で防止できるポンプ装置を提供することを目的とする。
【０００５】
【課題を解決するための手段】
上記問題点を解決するため本発明は、吊下管で吊り下げられたポンプの吸込口が液槽内に開口し、吐出口が液槽上部に横方向に開口し、該吐出口に可撓管を接続した構成の立型ポンプ装置において、ポンプの吐出圧力によって吐出口に掛かる推力を吊下管部で受ける推力受け装置を設け、推力受け装置は防振装置を具備し、吊下管部で受ける推力を防振装置で受けるように構成されていることを特徴とする。
【０００６】
上記のように、ポンプの吐出圧力によって吐出口に掛かる推力を推力受け装置の防振装置で受けることにより、ポンプの振動が外部に伝搬するのを遮断できる。
【０００７】
また、本発明は、上記立型ポンプ装置において、ポンプ及び吊下管等が台板に搭載されると共に、該台板は垂直荷重用防振装置を介して液槽上部の床上面に支持するように構成されることを特徴とする。
また、推力受け装置は台板より下側の吊下管部で推力を受けるように構成されていることを特徴とする。
【０００８】
【発明の実施の形態】
以下、発明の実施の形態例を図面に基づいて説明する。図１及び図２は本発明に係る立型ポンプ装置の構成を示す図で、図１は立型ポンプ装置の据付断面図、図２は推力受け装置の設置平面図である。
【０００９】
図において、２はポンプであり、該ポンプ２は吊下管５で水槽１６内に吊り下げられ、吸込口３は水面１５の下に開口し、吐出口４は水槽１６の上部で横方向に開口している。該吐出口４には可撓管７が接続され、該可撓管７には吐出配管８が接続されている。該吐出配管８は吐出配管受９で水槽１６の上部の床１７に固定されている。
【００１０】
１はポンプ駆動用の電動機であり、該電動機１の回転軸１ａは継手１８でポンプ軸１４に連結されている。６はポンプ２、吊下管５及び電動機１等を搭載する台板であり、該台板６は垂直荷重用防振装置１０を介して床１７の上面に支持されている。１２は防振装置であり、該防振装置１２の一端は抑え板１１を介して台板６より下側の吊下管５に固定され、他端は床１７の下面に固定された固定板１３に固定されている。
【００１１】
上記構成の立型ポンプ装置において、電動機１を起動してポンプ２を運転すると、吸込口３より吸込まれた水は吊下管５、吐出口４及び可撓管７を通って吐出配管８へと流れる。このポンプ２の運転により、吐出圧力が掛かると吐出配管８が吐出配管受９で床１７に固定されているので、可撓管７の位置で推力が生じ、該推力が吐出口４に掛かる。垂直荷重用防振装置１０は垂直荷重しか受けないので台板６はこの推力により水平方向に移動するが、これを抑え板１１、防振装置１２及び固定板１３で構成される推力受け装置で受けることになる。
【００１２】
上記抑え板１１、防振装置１２及び固定板１３で構成される推力受け装置は、可撓管７によって生じる推力を防振装置１２が垂直荷重として受ける構造にしてある。即ち、図２に示すように、ポンプ２の吐出圧力により、吐出口４に掛かる推力を抑え板１１で受けるが、この抑え板１１で受けた推力を防振装置１２が垂直荷重として受ける。
【００１３】
上記のように、抑え板１１、防振装置１２及び固定板１３で構成される推力受け装置で吊下管５を支え、ポンプ２の吐出圧力によって吐出口４に掛かる推力を受けるので、吐出口４に可撓管７を接続することができ、床１７及び吐出配管８への振動の伝搬を遮断できる。
【００１４】
なお、上記実施の形態例では、水槽１６内の水を取り扱うポンプを具備する立型ポンプ装置を例に説明したが、本発明に係る立型ポンプ装置は水槽内の水を扱うものに限定されるものではなく、各種の液を取り扱うポンプを具備する立型ポンプ装置でもよい。即ち、各種液を収容する液槽内の液を移送・排液・加圧するポンプを具備する立型ポンプ装置でも良いことは当然である。
【００１５】
以上、説明したように各請求項に記載の発明によれば、ポンプの吐出圧力によって吐出口に掛かる推力を吊下管部で受ける推力受け装置を設け、推力受け装置は防振装置を具備し、吊下管部で受ける推力を防振装置で受けるように構成されているので、下記のような優れた効果が得られる。
【００１６】
従来、ポンプの振動伝搬や振動に起因する騒音についての対策はポンプ機場の外で行われたことが多く、規模が大きくなり対策費用も高額となっていたが、本発明では上記のように、吐出口に掛かる推力を推力受け装置の防振装置で受ける構成なので、いかなるポンプ機場でも安価な費用で防振及び振動に起因する騒音について対策を施すことができる。
【図面の簡単な説明】
【図１】本発明に係る立型ポンプ装置の構成を示す据付断面図である。
【図２】本発明に係る立型ポンプ装置の推力受け装置の設置平面図である。
【符号の説明】
１電動機
２ポンプ
３吸込口
４吐出口
５吊下管
６台板
７可撓管
８吐出配管
９吐出配管受
１０垂直荷重用防振装置
１１抑え板
１２防振装置
１３固定板
１４ポンプ軸
１５水面
１６水槽
１７床
１８継手[0001]
BACKGROUND OF THE INVENTION
The present invention relates to a vertical pump device having a pump for transferring, draining and pressurizing fresh water, sewage, and other liquids, and in particular, vibration caused by the operation of the pump propagates to the outside and causes vibration pollution or vibration propagation. The present invention relates to a vertical pump device that can prevent the occurrence of noise pollution.
[0002]
[Prior art]
In order to prevent the vibration accompanying the pump operation from propagating to the outside via the foundation and discharge pipe, the pump device (pump, suspension pipe, electric motor, etc.) is supported by the vibration isolator for vertical load, When a flexible pipe is connected to the discharge port, thrust generated by the discharge pressure of the pump is applied to the discharge port of the pump and acts to move the pump in the horizontal direction. Since the vibration isolator that supports the pump device is for vertical loads, it is difficult to receive this thrust. Therefore, normally, a flexible tube is not connected to the discharge port of the pump.
[0003]
In addition, a vertical pump with a conventional suction port in the water tank and a discharge port that opens in the horizontal direction is installed on the floor above the water tank. It is difficult to use, and countermeasures against vibration propagation of the pump and noise caused by the vibration are often performed outside the pump station, resulting in a problem that the scale is large and the countermeasure cost is high.
[0004]
[Problems to be solved by the invention]
The present invention has been made in view of the above points, and in the current situation where regulations on vibration and noise are becoming stricter, noise and vibration at the boundary of the pumping station are also applied to a small vertical pump device that does not require countermeasures in the past. It is an object of the present invention to provide a pump apparatus that can prevent the vibration of the pump from being transmitted to the floor, walls, and piping of the pump chamber at a low cost and with a simple configuration.
[0005]
[Means for Solving the Problems]
In order to solve the above-mentioned problems, the present invention provides a suction port of a pump suspended by a suspension pipe that opens into the liquid tank, a discharge port that opens laterally above the liquid tank, and is flexible to the discharge port. In a vertical pump device having a configuration in which a pipe is connected, a thrust receiving device that receives a thrust applied to a discharge port by a discharge pressure of the pump by a suspension tube portion is provided , the thrust receiving device includes a vibration isolating device, and the suspension tube portion It is characterized by being configured to receive the thrust received by the vibration isolator .
[0006]
As described above, by receiving the thrust applied to the discharge port by the discharge pressure of the pump by the vibration isolator of the thrust receiving device, the vibration of the pump can be prevented from propagating to the outside.
[0007]
Further, the present invention provides the above-described vertical pump device, wherein the pump and the suspension pipe are mounted on the base plate, and the base plate is supported on the floor upper surface of the liquid tank through the vibration isolator for vertical load. It is comprised so that it may be comprised.
Further, the thrust receiving device is configured to receive a thrust at a suspension pipe portion below the base plate .
[0008]
DETAILED DESCRIPTION OF THE INVENTION
Embodiments of the present invention will be described below with reference to the drawings. 1 and 2 are views showing the configuration of a vertical pump device according to the present invention. FIG. 1 is a sectional view of the vertical pump device, and FIG. 2 is a plan view of the thrust receiving device.
[0009]
In the figure, 2 is a pump, the pump 2 is suspended in a water tank 16 by a suspension pipe 5, the suction port 3 opens below the water surface 15, and the discharge port 4 extends laterally above the water tank 16. It is open. A flexible tube 7 is connected to the discharge port 4, and a discharge pipe 8 is connected to the flexible tube 7. The discharge pipe 8 is fixed to a floor 17 above the water tank 16 by a discharge pipe receiver 9.
[0010]
Reference numeral 1 denotes an electric motor for driving a pump, and a rotating shaft 1 a of the electric motor 1 is connected to a pump shaft 14 by a joint 18. Reference numeral 6 denotes a base plate on which the pump 2, the suspension pipe 5, the electric motor 1, and the like are mounted. The base plate 6 is supported on the upper surface of the floor 17 through a vertical load vibration isolator 10. Reference numeral 12 denotes an anti-vibration device. One end of the anti-vibration device 12 is fixed to the suspension pipe 5 below the base plate 6 via the holding plate 11, and the other end is a fixed plate fixed to the lower surface of the floor 17. 13 is fixed.
[0011]
In the vertical pump device configured as described above, when the electric motor 1 is started and the pump 2 is operated, the water sucked from the suction port 3 passes through the suspension pipe 5, the discharge port 4 and the flexible pipe 7 to the discharge pipe 8. And flow. When the discharge pressure is applied by the operation of the pump 2, since the discharge pipe 8 is fixed to the floor 17 by the discharge pipe receiver 9, a thrust is generated at the position of the flexible pipe 7, and the thrust is applied to the discharge port 4. Since the vertical load vibration isolator 10 receives only a vertical load, the base plate 6 moves in the horizontal direction due to this thrust, and this is a thrust receiver composed of a restraining plate 11, a vibration isolator 12 and a fixed plate 13. Will receive.
[0012]
The thrust receiving device composed of the holding plate 11, the vibration isolator 12 and the fixed plate 13 is structured to receive the thrust generated by the flexible tube 7 as a vertical load. That is, as shown in FIG. 2, the thrust applied to the discharge port 4 is received by the restraining plate 11 by the discharge pressure of the pump 2, and the vibration received by the restraining plate 11 is received as a vertical load by the vibration isolator 12.
[0013]
As described above, the suspension pipe 5 is supported by the thrust receiving device including the holding plate 11, the vibration isolator 12, and the fixed plate 13, and the thrust applied to the discharge port 4 is received by the discharge pressure of the pump 2. 4, the flexible tube 7 can be connected, and the propagation of vibrations to the floor 17 and the discharge pipe 8 can be blocked.
[0014]
In the above embodiment, the vertical pump device including a pump that handles the water in the water tank 16 has been described as an example. However, the vertical pump device according to the present invention is limited to one that handles the water in the water tank. However, it may be a vertical pump device having a pump for handling various liquids. That is, it is a matter of course that a vertical pump device including a pump for transferring, draining, and pressurizing the liquid in the liquid tank containing various liquids may be used.
[0015]
As described above, according to the invention described in each claim, the thrust receiving device that receives the thrust applied to the discharge port by the discharge pressure of the pump by the suspension pipe portion is provided , and the thrust receiving device includes the vibration isolator. Since it is configured to receive the thrust received by the suspension pipe portion with the vibration isolator, the following excellent effects can be obtained.
[0016]
Conventionally, countermeasures for noise caused by vibration propagation and vibration of the pump are often taken outside the pump station, and the scale has been increased and the cost of countermeasures has been high, but in the present invention, as described above, Since the thrust applied to the discharge port is received by the vibration isolator of the thrust receiving device , any pump station can take measures against the vibration and noise caused by vibration at low cost.
[Brief description of the drawings]
FIG. 1 is an installation cross-sectional view showing a configuration of a vertical pump device according to the present invention.
FIG. 2 is an installation plan view of a thrust receiving device of a vertical pump device according to the present invention.
[Explanation of symbols]
DESCRIPTION OF SYMBOLS 1 Electric motor 2 Pump 3 Suction port 4 Discharge port 5 Suspension tube 6 Base plate 7 Flexible tube 8 Discharge piping 9 Discharge piping receiver 10 Vertical load vibration isolator 11 Damping plate 12 Vibration isolator 13 Fixed plate 14 Pump shaft 15 Water surface 16 Water tank 17 Floor 18 Joint

Claims

吊下管で吊り下げられたポンプの吸込口が液槽内に開口し、吐出口が液槽上部に横方向に開口し、該吐出口に可撓管を接続した構成の立型ポンプ装置において、
前記ポンプの吐出圧力によって前記吐出口に掛かる推力を前記吊下管部で受ける推力受け装置を設け、
前記推力受け装置は防振装置を具備し、前記吊下管部で受ける推力を前記防振装置で受けるように構成されていることを特徴とする立型ポンプ装置。In a vertical pump device having a configuration in which a suction port of a pump suspended by a suspension pipe is opened in a liquid tank, a discharge port is opened laterally at the top of the liquid tank, and a flexible pipe is connected to the discharge port. ,
A thrust receiving device for receiving the thrust applied to the discharge port by the discharge pressure of the pump at the suspension pipe portion;
The thrust receiving device includes a vibration isolating device, and is configured to receive a thrust received by the suspension pipe portion by the vibration isolating device.

請求項１に記載の立型ポンプ装置において、
前記ポンプ及び吊下管等が台板に搭載されると共に、該台板は垂直荷重用防振装置を介して前記液槽上部の床上面に支持されていることを特徴とする立型ポンプ装置。The vertical pump device according to claim 1,
Wherein with pump and suspension tube or the like is mounted on the base plate, stand-type pump該台plate, characterized in that it is supported on the floor surface of the tank top via the anti-vibration device vertical load apparatus.