JP3939463B2 - Vertical pump device - Google Patents

Vertical pump device Download PDF

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Publication number
JP3939463B2
JP3939463B2 JP15380199A JP15380199A JP3939463B2 JP 3939463 B2 JP3939463 B2 JP 3939463B2 JP 15380199 A JP15380199 A JP 15380199A JP 15380199 A JP15380199 A JP 15380199A JP 3939463 B2 JP3939463 B2 JP 3939463B2
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Japan
Prior art keywords
pump
base plate
vertical
discharge port
load
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JP15380199A
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Japanese (ja)
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JP2000345999A (en
Inventor
敏次 佐瀬
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Ebara Corp
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Ebara Corp
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Publication of JP2000345999A publication Critical patent/JP2000345999A/en
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Description

【0001】
【発明の属する技術分野】
本発明は立型ポンプ装置に関し、特にポンプの吐出し圧力によるポンプ吐出口に掛かる推力により台板が傾斜するのを防止する台板傾斜抑制手段を具備する立型ポンプ装置に関するものである。
【0002】
【従来の技術】
清水、汚水、その他の液体を移送、排水、加圧するポンプとして、立型ポンプがある。該立型ポンプにおいて、運転に伴って生じる振動が外部に伝播して振動公害或いは振動伝播が原因となって生じる騒音公害が問題となる。従来、ポンプの振動が基礎や吐出し配管を経由して外部に伝播するのを防止するために、吐出口に可撓管を接続すると共に、ポンプ設備(ポンプ及び駆動用電源等)を防振装置で支持する構成を採用している。
【0003】
上記のように可撓管や防振装置を使用する構成では、ポンプの吐出し圧力による推力がポンプの吐出口に掛かると、ポンプ設備を支持する防振装置は垂直荷重用なので、このようなポンプの吐出し圧力によりポンプ吐出口に掛かる推力を受けることは困難となる。従って、通常は可撓管を使用していない。
【0004】
近年、振動・騒音に対する規制が厳しくなっており、従来対策の不要であった小型のポンプ設備においても、ポンプ機場境界における騒音・振動をより小さくするための対策が必要になってきている。
【0005】
【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、簡単な構成でポンプの振動がポンプ室の床・壁・配管に伝わるのを防止できる立型ポンプ装置を提供することを目的とする。
【0006】
【課題を解決するための手段】
上記課題を解決するため請求項1に記載の発明は、ポンプの横方向に開口した吐出口に可撓管を接続し、該ポンプを搭載した台板を防振装置で支持した構成の立型ポンプ装置において、吐出し圧力によりポンプ吐出口に掛かる推力により台板に加わる水平方向の荷重及び上下方向の荷重を受け該台板の傾斜を抑制する台板傾斜抑制手段を設けたことを特徴とする。
【0007】
上記のように台板傾斜抑制装置を設けることにより、ポンプを運転して吐出し圧力が掛かるとポンプ吐出口に推力が生じる。また、吐出口に接続された可撓管の中心の高さと台板の高さに差があると、この差と推力の積によるモーメントが生じ、台板を傾けようと作用するが、この推力による台板を水平方向に移動させようとする荷重と、モーメントによる上下方向に移動させようとする荷重を台板傾斜抑制手段で受けるから、台板の水平方向の移動及び傾斜が抑制できる。
【0008】
また、請求項2に記載の発明は、請求項1に記載の立型ポンプ装置において、ポンプは吸込口が水槽内に開口した構成であり、台板にはポンプの他に該ポンプを駆動する電動機も搭載もされており、台板傾斜抑制手段は、吐出し圧力によりポンプ吐出口に掛かる推力により台板に掛かる水平方向の荷重及び上下方向の荷重を受ける弾性体で構成されていることを特徴とする。
【0009】
従来のポンプの吸込口が水槽内に開口しており、吐出口がポンプの横方向に開口した立型ポンプは、ポンプを水槽の上に設置するため、吐出し圧力による推力を受ける防振装置を使用することは難しく、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なければならないことが多く、規模が大きくなり対策費用も高額となっていた。本発明では上記のように台板傾斜抑制手段を、吐出し圧力によりポンプ吐出口に掛かる推力により、台板に掛かる水平方向の荷重及び上下方向の荷重を受ける弾性体で構成するので、いかなるポンプ機場でも安価に設置でき、振動対策や振動に起因する騒音対策の費用を大幅に削減できる。
【0010】
【発明の実施の形態】
以下、本発明の実施の形態例を図面に基づいて説明する。図1乃至図4は本発明に係る立型ポンプ装置の構成例を示す図で、図1は立型ポンプ装置の据付構成図、図2は立型ポンプ装置を上から見た平面図、図3は図2のX‐X断面矢視図、図4は図2のY−Y断面矢視図である。
【0011】
図において、2はポンプであり、該ポンプ2は、その吸込口3が水槽16内に開口し、吐出口4は横方向に突出し開口している立型ポンプである。ポンプ2と該ポンプ2を駆動する電動機1等は台板8に搭載されている。
【0012】
吐出口4には可撓管5が接続され、該可撓管5に吐出配管6が接続され、該吐出配管6は吐出配管受7で水槽16の上部の床10に固定されている。上記ポンプ2及び電動機1が搭載された台板8は図2に示すように、複数個(図では4個)の防振装置12で支持されている。該防振装置12はポンプ2及び電動機1等の垂直荷重を受けるようになっており、図4に示すように、床10に取り付けられている。なお、図1において、11は水面である。
【0013】
9は台板傾斜抑制装置であり、該台板傾斜抑制装置9は図3に示すように、コ字状の枠体9−1の内面に上向の荷重を受ける弾性体13、下向の荷重を受ける弾性体14及び推力による水平方向の荷重を受ける弾性体15を固着した構成である。弾性体13と弾性体14は台板8を挟持するように上下に配置され、弾性体15は台板8の外周端面に対向するように配置している。台板傾斜抑制装置9は台板8の周囲に複数個(図では4個)床10に固定されて配置されている。
【0014】
上記構成の立型ポンプ装置において、電動機1を起動しポンプ2を運転し、吐出し圧力が掛かると吐出配管6が吐出配管受7で固定されているので、可撓管5の個所で生じた推力が吐出口4に掛かる。図2に示すように、防振装置12は垂直方向の荷重しか受けないので台板8は推力で水平方向に移動しようとするが、これを図3に示す構成の台板傾斜抑制装置9の弾性体13、14、15で受ける。
【0015】
なお、上記弾性体13、14、15はゴム等の弾性を有する材料で構成しても良く、またバネ等の弾性体で構成しても良い。
【0016】
弾性体13、14、15で構成される台板傾斜抑制装置9は、可撓管5の部分で生じる推力を台板8の端面で弾性体15が垂直荷重として受けるようになっている。可撓管5の部分で生じる推力は台板8よりも高い位置で生じるので、可撓管5の中心と台板8の高さの差と推力の積のモーメントが台板8を傾ける力として作用するが、このモーメントによる上下方向の荷重を台板8の外周に配置した台板傾斜抑制装置9の弾性体13、14で受け、台板8の上下動を抑えて台板8の傾斜を抑制する。
【0017】
なお、上記台板傾斜抑制装置9の構成は一例であり、本発明はこれに限定されるものではなく、要は、吐出し圧力によりポンプ吐出口に掛かる推力により台板に加わる水平方向の荷重及び上下方向の荷重を受け、台板の傾斜を抑制するものであればよい。
【0018】
また、立型ポンプの構成も図1に示すものに限定されるものではない。要はポンプの横方向に突き出した吐出口に可撓管を接続し、ポンプを搭載した台板を防振装置で支持した構成の立型ポンプであればよい。
【0019】
【発明の効果】
以上、説明したように各請求項に記載の発明によれば、下記のような優れた効果が得られる。
【0020】
請求項1に記載の発明によれば、ポンプを運転して吐出し圧力が掛かるとポンプ吐出口に推力が生じ、この推力と台板と可撓管の中心の高さ差の積によりモーメントが発生し、台板に該台板を水平方向に移動させようとする荷重と傾けようとする上限方向の荷重が作用するが、この水平方向の荷重と、上下方向の荷重を台板傾斜抑制手段で受けるから、台板の水平方向の移動及び傾斜が抑制される。
【0021】
請求項2に記載の発明によれば、台板傾斜抑制手段を、吐出し圧力によりポンプ吐出口に掛かる推力により、台板に掛かる水平方向の荷重及び上下方向の荷重を受ける弾性体で構成するので、いかなるポンプ機場でも安価に設置でき、振動対策や振動に起因する騒音対策の費用を大幅に削減できる。
【図面の簡単な説明】
【図1】本発明に係る立型ポンプ装置の据付構成を示す断面図である。
【図2】本発明に係る立型ポンプ装置を上から見た平面図である。
【図3】図2のX‐X断面矢視図である。
【図4】図2のY−Y断面矢視図である。
【符号の説明】
1 電動機
2 ポンプ
3 吸込口
4 吐出口
5 可撓管
6 吐出配管
7 吐出配管受
8 台板
9 台板傾斜抑制装置
10 床
11 水面
12 防振装置
13 弾性体
14 弾性体
15 弾性体
16 水槽
[0001]
BACKGROUND OF THE INVENTION
The present invention relates to a vertical pump device, and more particularly, to a vertical pump device including a base plate inclination suppressing means for preventing the base plate from inclining due to a thrust applied to a pump discharge port due to a discharge pressure of the pump.
[0002]
[Prior art]
There is a vertical pump as a pump for transferring, draining and pressurizing fresh water, sewage and other liquids. In the vertical pump, vibration caused by operation propagates to the outside and vibration pollution or noise pollution caused by vibration propagation becomes a problem. Conventionally, in order to prevent the vibration of the pump from propagating to the outside via the foundation and the discharge pipe, a flexible tube is connected to the discharge port and the pump equipment (pump and drive power source, etc.) is damped. The structure supported by the device is adopted.
[0003]
In the configuration using a flexible tube or a vibration isolator as described above, when the thrust due to the discharge pressure of the pump is applied to the discharge port of the pump, the vibration isolator supporting the pump equipment is for vertical load. It is difficult to receive the thrust applied to the pump discharge port due to the discharge pressure of the pump. Therefore, a flexible tube is not normally used.
[0004]
In recent years, regulations on vibration and noise have become stricter, and even in a small pump facility that does not require conventional measures, measures for reducing noise and vibration at the pump station boundary have become necessary.
[0005]
[Problems to be solved by the invention]
The present invention has been made in view of the above points, and an object of the present invention is to provide a vertical pump device that can prevent vibrations of the pump from being transmitted to the floor, walls, and piping of the pump chamber with a simple configuration.
[0006]
[Means for Solving the Problems]
In order to solve the above problem, the invention according to claim 1 is a vertical type in which a flexible tube is connected to a discharge port opened in a lateral direction of a pump, and a base plate on which the pump is mounted is supported by a vibration isolator. The pump device is characterized in that a base plate inclination suppression means is provided that receives a horizontal load and a vertical load applied to the base plate by a thrust applied to the pump discharge port by a discharge pressure and suppresses the inclination of the base plate. To do.
[0007]
By providing the base plate inclination suppressing device as described above, thrust is generated at the pump discharge port when the pump is operated and discharged and pressure is applied. Also, if there is a difference between the height of the center of the flexible tube connected to the discharge port and the height of the base plate, a moment is generated by the product of this difference and thrust, which acts to tilt the base plate. Since the base plate inclination suppressing means receives the load for moving the base plate in the horizontal direction and the load for moving in the vertical direction due to the moment, the horizontal movement and inclination of the base plate can be suppressed.
[0008]
The invention according to claim 2 is the vertical pump device according to claim 1, wherein the pump has a suction opening in the water tank, and the base plate drives the pump in addition to the pump. An electric motor is also mounted, and the base plate inclination suppression means is composed of an elastic body that receives a horizontal load and a vertical load applied to the base plate by a thrust applied to the pump discharge port by the discharge pressure. Features.
[0009]
The conventional pump with the suction port of the conventional pump opened in the water tank and the discharge port opened in the lateral direction of the pump installs the pump on the water tank. It is difficult to use the pump, and countermeasures against vibration propagation of the pump and noise caused by vibration often have to be performed outside the pump station, resulting in a large scale and high countermeasure costs. In the present invention, as described above, the base plate inclination suppressing means is composed of an elastic body that receives a horizontal load and a vertical load applied to the base plate by the thrust applied to the pump discharge port by the discharge pressure. It can be installed at a low cost even at a machine place, and the cost of countermeasures against vibrations and noise caused by vibrations can be greatly reduced.
[0010]
DETAILED DESCRIPTION OF THE INVENTION
Embodiments of the present invention will be described below with reference to the drawings. FIG. 1 to FIG. 4 are diagrams showing a configuration example of a vertical pump device according to the present invention, FIG. 1 is an installation configuration diagram of the vertical pump device, and FIG. 2 is a plan view of the vertical pump device as viewed from above. 3 is a sectional view taken along the line XX in FIG. 2, and FIG. 4 is a sectional view taken along the line YY in FIG.
[0011]
In the figure, reference numeral 2 denotes a pump. The pump 2 is a vertical pump whose suction port 3 opens into the water tank 16 and whose discharge port 4 protrudes laterally and opens. The pump 2 and the electric motor 1 that drives the pump 2 are mounted on the base plate 8.
[0012]
A flexible pipe 5 is connected to the discharge port 4, and a discharge pipe 6 is connected to the flexible pipe 5. The discharge pipe 6 is fixed to the floor 10 above the water tank 16 by a discharge pipe receiver 7. As shown in FIG. 2, the base plate 8 on which the pump 2 and the electric motor 1 are mounted is supported by a plurality of (four in the figure) vibration isolators 12. The vibration isolator 12 receives vertical loads such as the pump 2 and the electric motor 1 and is attached to the floor 10 as shown in FIG. In FIG. 1, 11 is the water surface.
[0013]
Reference numeral 9 denotes a base plate inclination suppressing device. As shown in FIG. 3, the base plate inclination suppressing device 9 has an elastic body 13 that receives an upward load on the inner surface of a U-shaped frame 9-1, and a downward direction. In this configuration, an elastic body 14 that receives a load and an elastic body 15 that receives a load in a horizontal direction due to a thrust force are fixed. The elastic body 13 and the elastic body 14 are arranged vertically so as to sandwich the base plate 8, and the elastic body 15 is arranged so as to face the outer peripheral end face of the base plate 8. A plurality (four in the figure) of the base plate inclination suppressing devices 9 are fixed to the floor 10 around the base plate 8.
[0014]
In the vertical pump device having the above-described configuration, when the electric motor 1 is started and the pump 2 is operated and the discharge pressure is applied, the discharge pipe 6 is fixed by the discharge pipe receiver 7, so that it occurs at the position of the flexible pipe 5. A thrust is applied to the discharge port 4. As shown in FIG. 2, since the vibration isolator 12 receives only a load in the vertical direction, the base plate 8 tries to move in the horizontal direction by thrust, and this is applied to the base plate inclination suppressing device 9 having the configuration shown in FIG. It is received by the elastic bodies 13, 14, and 15.
[0015]
The elastic bodies 13, 14, and 15 may be made of an elastic material such as rubber, or may be made of an elastic body such as a spring.
[0016]
In the base plate inclination suppressing device 9 constituted by the elastic bodies 13, 14, and 15, the elastic body 15 receives the thrust generated at the portion of the flexible tube 5 as a vertical load at the end face of the base plate 8. Since the thrust generated in the portion of the flexible tube 5 is generated at a position higher than the base plate 8, the moment of the product of the difference between the height of the center of the flexible tube 5 and the base plate 8 and the thrust is the force that tilts the base plate 8. Although acting, the load in the vertical direction due to this moment is received by the elastic bodies 13 and 14 of the base plate tilt suppressing device 9 arranged on the outer periphery of the base plate 8, and the vertical movement of the base plate 8 is suppressed to tilt the base plate 8. Suppress.
[0017]
The configuration of the base plate inclination suppressing device 9 is an example, and the present invention is not limited to this. In short, the horizontal load applied to the base plate by the thrust applied to the pump discharge port by the discharge pressure is important. And what is necessary is just to receive the load of an up-down direction and suppress the inclination of a baseplate.
[0018]
Further, the configuration of the vertical pump is not limited to that shown in FIG. In short, a vertical pump having a configuration in which a flexible pipe is connected to a discharge port protruding in the lateral direction of the pump and a base plate on which the pump is mounted is supported by a vibration isolator.
[0019]
【The invention's effect】
As described above, according to the invention described in each claim, the following excellent effects can be obtained.
[0020]
According to the first aspect of the present invention, when a discharge pressure is applied by operating the pump, a thrust is generated at the pump discharge port, and a moment is generated by the product of the thrust and the height difference between the center of the base plate and the flexible tube. The load that causes the base plate to move in the horizontal direction and the load in the upper limit direction that tilts the base plate act on the base plate. The horizontal load and the vertical load are used to suppress the base plate tilt. Therefore, the horizontal movement and inclination of the base plate are suppressed.
[0021]
According to the second aspect of the present invention, the base plate inclination suppressing means is configured by an elastic body that receives a horizontal load and a vertical load applied to the base plate by a thrust applied to the pump discharge port by the discharge pressure. Therefore, it can be installed at any pump station at a low cost, and the cost for vibration countermeasures and noise countermeasures caused by vibrations can be greatly reduced.
[Brief description of the drawings]
FIG. 1 is a cross-sectional view showing an installation configuration of a vertical pump device according to the present invention.
FIG. 2 is a plan view of the vertical pump device according to the present invention as viewed from above.
3 is a cross-sectional view taken along the line XX in FIG. 2;
4 is a cross-sectional view taken along the line Y-Y in FIG. 2;
[Explanation of symbols]
DESCRIPTION OF SYMBOLS 1 Electric motor 2 Pump 3 Suction port 4 Discharge port 5 Flexible tube 6 Discharge piping 7 Discharge piping receptacle 8 Base plate 9 Base plate inclination suppression apparatus 10 Floor 11 Water surface 12 Vibration isolator 13 Elastic body 14 Elastic body 15 Elastic body 16 Water tank

Claims (2)

ポンプの横方向に開口した吐出口に可撓管を接続し、該ポンプを搭載した台板を防振装置で支持した構成の立型ポンプ装置において、
吐出し圧力により前記ポンプ吐出口に掛かる推力により前記台板に加わる水平方向の荷重及び上下方向の荷重を受け該台板の傾斜を抑制する台板傾斜抑制手段を設けた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 flexible tube is connected to a discharge port opened in a lateral direction of the pump, and a base plate on which the pump is mounted is supported by a vibration isolator,
A standing plate characterized in that it is provided with a base plate inclination suppressing means for receiving a horizontal load and a vertical load applied to the base plate by a thrust applied to the pump discharge port by a discharge pressure and suppressing the inclination of the base plate. Type pump device.
請求項1に記載の立型ポンプ装置において、
前記ポンプは吸込口が水槽内に開口した構成であり、前記台板には前記ポンプの他に該ポンプを駆動する電動機も搭載されており、
前記台板傾斜抑制手段は、前記吐出し圧力により前記ポンプ吐出口に掛かる推力により前記台板に掛かる水平方向の荷重及び上下方向の荷重を受ける弾性体で構成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,
The pump has a structure in which a suction port is opened in the water tank, and the motor for driving the pump is mounted on the base plate in addition to the pump.
The base plate inclination suppressing means is formed of an elastic body that receives a horizontal load and a vertical load applied to the base plate by a thrust applied to the pump discharge port by the discharge pressure. Type pump device.
JP15380199A 1999-06-01 1999-06-01 Vertical pump device Expired - Lifetime JP3939463B2 (en)

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Application Number Priority Date Filing Date Title
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JP3939463B2 true JP3939463B2 (en) 2007-07-04

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DE10307498A1 (en) * 2003-02-21 2004-09-02 Ksb Aktiengesellschaft Vibration-optimized tubular casing pump
JP6280455B2 (en) * 2014-06-24 2018-02-14 株式会社酉島製作所 Pump damping device
WO2017190592A1 (en) * 2016-05-05 2017-11-09 余炳炎 Water pump

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