KR101436738B1 - The submersible pump furnished device of anti-vibration - Google Patents

The submersible pump furnished device of anti-vibration Download PDF

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KR101436738B1
KR101436738B1 KR1020130053489A KR20130053489A KR101436738B1 KR 101436738 B1 KR101436738 B1 KR 101436738B1 KR 1020130053489 A KR1020130053489 A KR 1020130053489A KR 20130053489 A KR20130053489 A KR 20130053489A KR 101436738 B1 KR101436738 B1 KR 101436738B1
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vibration
pump
submersible pump
underwater
suction
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KR1020130053489A
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Korean (ko)
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KR20130073026A (en
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박재원
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박재원
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    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
    • F04D—NON-POSITIVE-DISPLACEMENT PUMPS
    • F04D29/00—Details, component parts, or accessories
    • F04D29/66—Combating cavitation, whirls, noise, vibration or the like; Balancing
    • F04D29/669—Combating cavitation, whirls, noise, vibration or the like; Balancing especially adapted for liquid pumps
    • 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
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
    • F04D—NON-POSITIVE-DISPLACEMENT PUMPS
    • F04D29/00—Details, component parts, or accessories
    • F04D29/007—Details, component parts, or accessories especially adapted for liquid pumps
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
    • F04D—NON-POSITIVE-DISPLACEMENT PUMPS
    • F04D29/00—Details, component parts, or accessories
    • F04D29/40—Casings; Connections of working fluid
    • F04D29/406—Casings; Connections of working fluid especially adapted for liquid pumps
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
    • F04D—NON-POSITIVE-DISPLACEMENT PUMPS
    • F04D29/00—Details, component parts, or accessories
    • F04D29/40—Casings; Connections of working fluid
    • F04D29/42—Casings; Connections of working fluid for radial or helico-centrifugal pumps
    • F04D29/44—Fluid-guiding means, e.g. diffusers
    • F04D29/445—Fluid-guiding means, e.g. diffusers especially adapted for liquid pumps
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F05—INDEXING SCHEMES RELATING TO ENGINES OR PUMPS IN VARIOUS SUBCLASSES OF CLASSES F01-F04
    • F05D—INDEXING SCHEME FOR ASPECTS RELATING TO NON-POSITIVE-DISPLACEMENT MACHINES OR ENGINES, GAS-TURBINES OR JET-PROPULSION PLANTS
    • F05D2210/00—Working fluids
    • F05D2210/10—Kind or type
    • F05D2210/11—Kind or type liquid, i.e. incompressible
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F05—INDEXING SCHEMES RELATING TO ENGINES OR PUMPS IN VARIOUS SUBCLASSES OF CLASSES F01-F04
    • F05D—INDEXING SCHEME FOR ASPECTS RELATING TO NON-POSITIVE-DISPLACEMENT MACHINES OR ENGINES, GAS-TURBINES OR JET-PROPULSION PLANTS
    • F05D2260/00—Function
    • F05D2260/30—Retaining components in desired mutual position
    • F05D2260/31—Retaining bolts or nuts
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F05—INDEXING SCHEMES RELATING TO ENGINES OR PUMPS IN VARIOUS SUBCLASSES OF CLASSES F01-F04
    • F05D—INDEXING SCHEME FOR ASPECTS RELATING TO NON-POSITIVE-DISPLACEMENT MACHINES OR ENGINES, GAS-TURBINES OR JET-PROPULSION PLANTS
    • F05D2300/00—Materials; Properties thereof
    • F05D2300/40—Organic materials
    • F05D2300/43—Synthetic polymers, e.g. plastics; Rubber
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10S—TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10S415/00—Rotary kinetic fluid motors or pumps
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10S—TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10S417/00—Pumps

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Structures Of Non-Positive Displacement Pumps (AREA)

Abstract

본 발명은 수중펌프에 관한 것으로서, 펌프 흡입측에 방진장치를 설치하여 지진 또는 수중펌프의 운전시 발생하는 진동으로부터 펌프를 보호하고 연결된 구조물에 전달되어 2차 피해를 유발하는 진동과 소음을 차단하여 안정적인 수중펌프의 운전제어를 할 수 있는 방진장치가 구비되는 수중펌프에 관한 것이다.The present invention relates to a submersible pump, in which a vibration isolating device is installed on the suction side of a pump to protect the pump from vibrations occurring during operation of an earthquake or an underwater pump and to transmit vibration to a connected structure, To an underwater pump having a vibration damping device capable of controlling the operation of a stable underwater pump.

Figure 112013041667147-pat00001
Figure 112013041667147-pat00001

Description

방진장치가 구비되는 수중펌프 { The submersible pump furnished device of anti-vibration }BACKGROUND OF THE INVENTION 1. Field of the Invention [0001] The present invention relates to a submersible pump,

본 발명은 수중펌프에 관한 것으로서, 보다 상세하게는 수중펌프의 운전시 발생하는 진동이나 지진 등 외부의 진동으로부터 펌프를 보호하여 안정적인 운전을 도모할 뿐 아니라 발생소음까지 줄일 수 있는 수중펌프에 관한 것이다.
BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an underwater pump, and more particularly, to a submersible pump capable of not only generating stable operation while protecting the pump from external vibrations such as vibrations and earthquakes generated during operation of a submersible pump, .

일반적으로 펌프는 낮은 곳에 위치하는 유체를 주로 높은 곳으로 이동시켜 주는 장치로, 크게 육상에서 사용하는 육상펌프와 수중에서 사용하는 수중펌프로 구분되며, 이중 수중펌프는 수중에서 작동하는 전동식 펌프를 총칭하는 것으로서, 상기 수중펌프의 사용목적 및 용도에 따라 심정용, 상수도 가압용, 배수용 펌프 등 여러 종류로 다양하게 구분되어 진다.
Generally, a pump is a device that moves low-lying fluid mainly to a high place. It is largely divided into a land pump used in the land and a submersible pump used in water. The submersible pump is an electric pump And may be variously classified into various kinds depending on the purpose and use of the underwater pump, such as a heart valve, a water pressure pump, and a drain pump.

상기 수중펌프는 주로 콘크리트 구조물과 연결된 펌프 설치용 컬럼파이프(Colum Pipe)가 설치되어 외부에서 공급되는 전원에 의하여 구동하는 구동모터의 회전자와, 상기 회전자에 결합 된 구동축과, 상기 구동축의 끝단에 결합 된 임펠러가 회전하게 되면서 유체를 외부로 송출하게 된다.
The submersible pump is mainly composed of a rotor of a driving motor provided with a colum pipe for installing a pump connected to a concrete structure and driven by an external power source, a driving shaft coupled to the rotor, The combined impeller rotates to discharge the fluid to the outside.

종래에는 수중펌프가 비교적 간단한 콘크리트 구조물에 위치한 설치용 파이프인 컬럼파이프 내에 볼팅(Bolting)과 같은 특별한 물리적 취부없이 수중펌프 자중에 의하여 안착된 상태로 수중펌프의 운전을 제어하고 있다.
Conventionally, an underwater pump controls the operation of an underwater pump in a state where the underwater pump is seated in a column pipe, which is a mounting pipe located in a relatively simple concrete structure, by the weight of the underwater pump without special physical attachment such as bolting.

이때 수중펌프를 운전 및 제어함에 있어서, 펌프 임펠러와 모터 회전자의 불균형, 베어링의 불평형, 유체의 토출에 의한 흐름 저항, 유체내에 이물질 혼입 뿐아니라 기타 여러가지 요인과 수중펌프의 운전에 따라 진동과 소음이 발생하게 된다.
In operation and control of submersible pump, vibration and noise are caused by unbalance of pump impeller and motor rotor, unbalance of bearing, flow resistance by discharge of fluid, foreign substances in the fluid as well as various other factors and operation of submersible pump .

이러한 진동으로 인한 불안전한 운전이나 소음은 주위의 구조물에 진동 전달이나 소음으로 타구조물에 직접, 간접적인 영향을 주어 구조물 손상이나 심각한 2차 피해를 유발하는 문제점이 있다.
Unstable operation or noise caused by such vibration may directly or indirectly affect other structures due to vibration transmission or noise to surrounding structures, which may cause structural damage or serious secondary damage.

이러한 문제점을 해결하기 위하여 종래의 기술로는,In order to solve such a problem, in the prior art,

육상펌프의 경우는 대기상태에 거의 노출된 상태로 펌프장치가 설치되어 진동과 소음이 다소 크기 때문에 방진장치가 부착된 방진가대를 장착하여 진동과 소음이 적은 상태에서 운전되고 있으나,
In the case of the land pump, since the pumping device is installed in a state exposed to the atmospheric state and vibration and noise are somewhat large, the anti-vibration device equipped with the anti-vibration device is installed,

수중펌프의 경우는 펌프의 설치장소가 컬럼파이프 내에 설치되어 매우 협소하고 수중에서 운전되는 특수성때문에 이러한 방진장치가 설치되지 못하고 그대로 진동이 수반되는 상태로 운전하여 피해를 입는 문제점이 있다.
In the case of an underwater pump, there is a problem in that the installation place of the pump is installed in the column pipe, and the pump is very narrow and is operated underwater due to its special nature.

더우기, 도 1에서 보는 바와 같이 통상적으로 설치되는 수중펌프는 배수시에는 토출측 배관이나 토목 콘크리트 구조물이 제방을 관통하여 설치되고, 이를 따라 배제되는 우수는 제방이나 둑을 중심으로 배수장 반대측에 위치하는 강이나 하천 쪽으로 배제하게 되는 데, 이렇게 운전될 시 펌프에서 발생하는 진동이 토목 콘크리트 구조물이나 토출관(2)을 통하여 제방에 진동을 주게 되면, 구조물 또는 토출관과 밀착된 제방에 미세한 틈새가 생기고 이틈새에 물이 역류하게 되는 파이핑 현상(Piping)이 발생된다. 이러한 진동과 파이핑 현상이 지속될 경우 제방의 지반 침하나 붕괴로 인하여 큰 피해가 발생하는 문제점이 있다.
Further, as shown in FIG. 1, a submersible pump, which is typically installed, is provided with discharge-side piping or a civil engineering concrete structure through the bank when discharging the water, and the excreted water is discharged from a river located on the opposite side of the drainage When the vibration generated by the pump is applied to the bank through the civil engineering concrete structure or the discharge pipe (2), fine cracks are formed in the bank or the bank which is in close contact with the discharge pipe. A piping phenomenon occurs in which the water flows back into the gap. If the vibration and piping phenomenon continues, there is a problem that the dam or collapse of the embankment causes great damage.

본 발명의 해결하고자 하는 과제는 수중펌프의 운전시 발생하는 진동을 방지하여 소음과 진동으로 인한 피해를 줄이고 안정적인 운전제어를 할 수 있는 수중펌프를 제공하는 것이다.
An object of the present invention is to provide an underwater pump capable of preventing vibration generated during operation of an underwater pump, reducing damage caused by noise and vibration, and performing stable operation control.

상술한 과제를 달성하기 위하여, 본 발명은 방진장치가 구비되는 수중펌프 : 에 관한 것으로, 컬럼파이프 내에 설치되는 수중펌프의 흡입나팔관 외부 원주상에 방진장치 설치용 브라켓 ; 진동을 방지하는 방진장치; 상기 방진장치을 올려 놓을 수 있는 디스크형 지수고무 고정원판 ; 과 토출측과 흡입측 사이간 유체의 이동을 방지하는 지수고무판; 으로 구성되는 방진장치를 구비하는 것을 특징으로 하는 수중펌프를 말한다.
In order to achieve the above object, the present invention relates to a submersible pump provided with a dustproof device, comprising: a bracket for mounting a dustproof device on an outer circumference of a suction pipe of a submersible pump installed in a column pipe; A vibration preventing device for preventing vibration; A disk-type exponential rubber fixed disk on which the vibration damping device can be placed; An index rubber plate for preventing the movement of fluid between the discharge side and the suction side; And an anti-vibration device constituted by an anti-vibration device.

또한, 상기 지수고무판은 중심부가 천공된 도넛형태의 지수용 고무원판으로 이 고무판의 중심안쪽의 원주상 일곳은 흡입 나팔관 하부측 원주상에 지수고무 고정판과 볼트에 의해 고정되고, 이 고무판의 중심 바깥쪽 원주의 일부는 컬펌파이프 하단에 있는 펌프 좌대에 위에 위치하고, 이 고무판의 윗측에는 방진장치의 받침대를 받치고 있는 도넛형태의 방진장치 설치용 원판이 구비된다.
In addition, the above-mentioned exponential rubber plate is a donut-shaped exponential rubber base plate having a center portion punched therein. One of the circumferential inner sides of the rubber plate is fixed on the circumference of the lower side of the suction fall tube by an expansive rubber fixing plate and a bolt, A part of the circumference of the pipe is placed on the pump platform at the lower part of the curved pipe, and the upper side of the rubber plate is provided with a donut-shaped dustproof disk mounting plate supporting the support of the dustproof device.

본 발명에 따른 수중펌프의 효과를 설명하면 다음과 같다.The effect of the submersible pump according to the present invention is as follows.

수중펌프의 운전시 발생하는 진동과 소음, 이로 인한 타구조물과 연결된 피해를 줄여 저소음과 저진동으로 구조물 손상을 방지하고 수명을 연장시킬뿐 아니라 안정적인 수중펌프의 운전제어를 할 수 있다.
By reducing vibration and noise generated during operation of submersible pumps and thereby reducing damage to other structures, it is possible to prevent damage to the structure by low noise and vibration and to prolong the service life of the submersible pump.

도 1은 통상적으로 실시중인 수중펌프의 설치 단면도.
도 2는 통상적으로 실시중인 수중펌프의 보다 세부적인 설치단면도.
도 3은 본 발명에 따른 방진장치가 구비되는 수중펌프의 실시 예를 나타낸 단면도.
도 4는 본 발명에 따른 도 3의 방진장치가 구비되는 상세 단면도.
도 5은 본 발명에 따른 방진장치가 구비되는 수중펌프의 실시 예를 나타낸 사시도.1 is an installation cross-sectional view of a conventional submersible pump.
Figure 2 is a more detailed installation cross-sectional view of a submersible pump that is typically in operation.
3 is a cross-sectional view showing an embodiment of an underwater pump equipped with a dustproof device according to the present invention.
4 is a detailed cross-sectional view of the vibration damping device of FIG. 3 according to the present invention.
5 is a perspective view showing an embodiment of an underwater pump equipped with a dustproof device according to the present invention.

이하, 첨부된 도면을 참조하여, 본 발명에 따른 방진펌프가 구비되는 수중펌프에 대한 실시의 예를 구체적으로 설명한다.
DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS Hereinafter, an embodiment of a submersible pump having a dustproof pump according to the present invention will be described in detail with reference to the accompanying drawings.

도 3 내지 도 5을 참조하면, 본 발명에 따른 수중펌프는 수중펌프(5), 흡입나팔관(23), 컬럼파이프(50), 컬럼파이프 하단에 펌프좌대(51),방진장치 설치용 브라켓(24), 방진장치(30), 지수판(34), 지수고무 고정원판(33), 지수판 고정 볼트(35)를 포함한다.
3 to 5, the submersible pump according to the present invention includes an underwater pump 5, a suction fall tube 23, a column pipe 50, a pump base 51 at the lower end of the column pipe, a bracket 24 An anti-vibration device 30, a metal plate 34, an index rubber fixing plate 33, and a metal plate fixing bolt 35.

상기 방진장치 설치용 브라켓(24)은 수중펌프(5)의 흡입나팔관(23) 외부 원주상 측면에 설치되는 적어도 하나 이상의 설치용 브라켓과, 상기 방진장치(30)은 설치용 브라켓(24)에 구비되는 적어도 하나 이상의 펌프 진동을 방지하는 방진장치로 구성되고, 상기 디스크형 지수고무 고정원판(33)위에는 상기 방진장치(30)가 안착되고, 토출측과 흡입측 사이간 유체의 이동을 방지하는 지수고무판(34)으로 구성이 되는 것이 본 발명의 특징이다.
The dustproof device mounting bracket 24 includes at least one mounting bracket that is installed on the side of the outer circumferential surface of the suction fall tube 23 of the underwater pump 5 and at least one mounting bracket that is installed on the mounting bracket 24 Wherein the dust-proofing device (30) is seated on the disc-shaped elastic rubber plate (33), and an index rubber plate (34) for preventing movement of the fluid between the discharge side and the suction side ) Is a feature of the present invention.

상기 방진장치(30)는 주로 수중펌프(5)가 운전시 유체 가진력 등 여러가지 여건에 의해 발생되는 가진력에 의해 수중펌프(5)가 토목 콘크리트 구조물과 연결된 철강 구조물인 컬럼 파이프(50) 내에 펌프가 설치되는 펌프 좌대(51)의 기준위치에서 반복운동을 하는 흔들림 현상 즉, 이로 인하여 발생되는 진동과 소음을 잡아주는 것으로,

통상은 진동을 방지하는 방진이론은 기기의 형태나 가진력 발생원인에 기인하는 여러가지가 방법과 이론이 있으나, 주로 진동이 발생되는 기기를 진동이 발생하지 않는 구조물에 강구조물에 의한 강제로 지지 또는 구속을 하여 진동을 저감하는 강구조물에 의한 강제 구속방법과,

진동이 발생하는 기기에 해당 발진 가진력 이상의 충분한 상당중량을 부가하여 진동을 억제하는 부가중량에 의한 진동억제 방법과,

수학적인 모델을 기준으로 이 계의 운동방정식을 Newton의 법칙으로 표시되는 진동인자 관성력(m), 점성저항력(c), 스프링의 복원력(k)으로 이루어진 진동시스템(Vibration system)에서 방진이 가능하도록 설계 적용된 방진장치(30)가 있고,

이러한 방진장치(30)는 기종 통상 기술로 기 실시되고 있는 것으로는 진동 저감용 코일 스프링이 내장되어 있는 차량 충격흡수장치인 쇽업쇼바(Shock-Absorber)가 그 기술의 대표적인 실시의 예로 볼 수 있다.

또한 진동 저감을 위한 탄성을 가지는 충격흡수용 고무(Rubber)재질의 방진체를 설치하는 방진패드(Pad of Anti- vibration)가 그 기술의 실시 예라고 볼 수 있다.
The vibration damping device 30 mainly includes a pump in the column pipe 50, which is a steel structure in which the underwater pump 5 is connected to the civil engineering concrete structure by an excitation force generated by various conditions such as fluid excitation force during operation of the underwater pump 5 The vibration and noise generated due to the swinging phenomenon which is repeatedly performed at the reference position of the installed pump stand 51,

In general, the vibration prevention theory that prevents vibration includes various methods and theories that are caused by the shape of the device or the cause of the excitation force. However, in the case where the vibration generating device is supported by the steel structure, A forced restraining method using a steel structure for reducing vibration,

A vibration suppression method by an additional weight for suppressing vibration by adding a sufficient equivalent weight of a vibration generating force to the device in which vibration occurs,

Based on the mathematical model, the equation of motion of this system can be damped in a vibration system consisting of vibration law inertia force (m), viscous resistance force (c) and spring restoring force (k) There is a designed anti-vibration device 30,

Such a vibration damping device 30 is a typical example of the technique, and a shock shock absorber, which is a vehicle shock absorber incorporating a coil spring for vibration reduction, has been used in the prior art.

In addition, a pad of anti-vibration, which is provided with a vibration-proof body made of a rubber material having elasticity for vibration reduction, can be considered as an example of the technique.

이것을 일단의 볼트부분(미도시)을 수중펌프(5)의 외측에 취부된 브라켓(24)과 연결하고 타단은 지구 중심방향으로 위치하여 지수고무 고정원판(33)과 하부 고정볼트(32)로 연결되어 설치된다.The bolt portion (not shown) is connected to the bracket 24 attached to the outside of the underwater pump 5 and the other end is positioned in the direction of the center of the globe, and is fixed to the upper rubber fixing plate 33 and the lower fixing bolt 32 And connected.

이때 지수용 고무 고정원판(33)과는 자중으로 설치하거나 하부 고정볼트(32)가 아닌 접착제에 의한 고정방식 뿐 아니라 다른 통상적인 방법으로도 고정할 수 있다.
At this time, the index fixing rubber plate 33 can be fixed to the rubber fixing plate 33 by its own weight or by a fixing method using an adhesive other than the lower fixing bolt 32 as well as other conventional methods.

상기 지수용 고무원판(34)는 중심부측이 천공된 디스크형( Disk Type)으로 지수고무 고정원판(33)과 컬럼파이프의 펌프 좌대(51) 사이에 설치되며, 상기 지수고무판(34) 중심부에 가까운 측은 펌프 흡입나팔관 하단부 측에 지수고무판 고정볼트(35)로 고정되어 수중펌프(5)의 토출측으로 토출되는 유체와 흡입나팔관(23)으 흡입측 사이간 유체가 맴돌이 하거나 역류하는 것을 방지도록 지수역활을 주로 하며, 일부 고무이므로 방진역활 될 뿐더러 고유의 펌프 성능을 유지하도록 설치된다.The index rubber base plate 34 is a disc type having a center portion punched therebetween and is provided between the fixed rubber plate 33 and the pump base 51 of the column pipe. The near side is fixed to the lower end of the pump suction fallpipe by an exponential rubber plate fixing bolt 35 so as to prevent the fluid between the fluid discharged to the discharge side of the underwater pump 5 and the suction side of the suction fallpipe 23 from swirling or flowing backward It plays a role of anti-vibration because it is a part of rubber, and it is installed to maintain its own pump performance.

이때에도 상기 지수용 고무원판(34)은 상기와 같이 설치될 시, 지수고무판 고정볼트류(35)로 고정하는 한정된 방법외에 홈을 만들어 압입하거나 접착제류로 접착하여 맴돌이나 역류방지를 하는 것은 본 발명에 따른 또 다른 실시의 예라는 것은 자명하다.
At this time, when the rubber base plate 34 is installed as described above, the index rubber plate 34 is fixed with the fixing bolts 35. In addition, the rubber base plate 34 is press- Is an example of another embodiment according to the present invention.

상기와 같이 방진장치(30)가 수중펌프(5)와 컴럼파이프(50)에 설치되면 운전을 하게되면 수중펌프(5)에서 발생되는 진동이나 소음이 상기와 같이 설치된 방진장치(30)에서 소멸되어 진동과 소음이 아주 적은 안전한 운전과 제어를 할 수 있게 되고, 지수고무판(34)에 의해 흡입측에서 흡입나팔관(23)을 통하여 펌프(20)가 토출한 유체가 흡입측으로 다시 역유하거나 토출관(2)으로 토출되지 않고 맴돌이 하는 현상이 없이 원활한 운전이 가능하다.
When the vibration damping device 30 is installed in the underwater pump 5 and the combo pipe 50 as described above, vibration and noise generated in the underwater pump 5 are extinguished by the vibration damping device 30, And the fluid discharged from the pump 20 through the suction fall-back pipe 23 at the suction side by the exponential rubber plate 34 is returned to the suction side again, So that smooth operation is possible without the phenomenon of swirling without being discharged to the discharge port (2).

또한 상기와 같은 방진장치(30)는 방진설계된 스프링(미도시)이 안내관(미도시) 위치하고, 안내관(미도시) 양측 중 일단에 받침대(미도시)와 타단에 취부용 볼트(미도시)와 너트(31)가 있어 양단을 설치하게 되면 압축과 인장을 반복하며 진동이나 소음을 방지하게 된다.
이때 방진장치(30)의 초기상태는 수중펌프(5)의 자중이 지구 중심방향으로 작용하고 컬럼파이프(50)의 펌프좌대(51)는 고정되어 지구중심 반대방향으로 응력이 작용하여 압축력이 작용하는 상태로 설치된다.
The dustproof device 30 is provided with a spring (not shown) which is designed to be dustproof, and a guide pipe (not shown) is positioned thereon, and a pedestal (not shown) is provided at one end of the guide pipe (not shown) ) And nut (31). When both ends are installed, compression and tension are repeated to prevent vibration and noise.
At this time, the initial state of the anti-vibration device 30 is such that the weight of the underwater pump 5 acts in the direction of the center of the earth and the pump platform 51 of the column pipe 50 is fixed and stress acts in the direction opposite to the center of the earth, .

삭제delete

하지만 본 발명에 따른 또 다른 실시에 따르면 컬럼파이프(50)의 끝단에 고정 브라켓(미도시)을 설치하고, 수중펌프(5)의 자중이 방진장치(30)의 타단에 매달리게 설치하면 방진장치(30)의 스프링(미도시)에 작용하는 힘은 인장력이 초기상태로 작용하도록 설치하는 것도 본 발명에 따른 실시의 예라는 것은 자명한 것이다.
However, according to another embodiment of the present invention, when a fixing bracket (not shown) is provided at the end of the column pipe 50 and the weight of the underwater pump 5 is suspended from the other end of the vibration damper 30, It is also obvious that the force acting on the spring (not shown) of the first and second elastic members 30 and 30 acts as an initial state of the tensile force.

본 발명은 상술한 특정의 바람직한 실시 예에 한정되지 아니하며, 청구범위에서 청구하는 본 발명의 요지를 벗어남이 없이 당해 발명이 속하는 기술분야에서 통상의 지식을 가진 자라면 누구든지 다양한 변형실시가 가능한 것은 물론이고, 그와 같은 변경은 청구범위 기재의 범위 내에 있게 된다.
It will be understood by those skilled in the art that various changes in form and details may be made therein without departing from the spirit and scope of the invention as defined in the appended claims and their equivalents. Of course, such modifications are within the scope of the claims.

5 : 수중모터펌프 50 : 컬럼파이프
3 : 토출파이프 51 : 펌프 좌대
23 : 흡입나팔관 24 : 방진장치 설치용 브라켓
30 : 방진장치 31 : 상부 고정너트
33 : 지수고무 고정원판 34 : 지수고무판 5: Submersible motor pump 50: Column pipe
3: Discharge pipe 51: Pump base
23: suction inhalation tube 24: anti-vibration device mounting bracket
30: anti-vibration device 31: upper fixing nut
33: Expansion rubber fixed disk 34: Expo rubber plate

Claims (2)

방진장치가 구비되는 수중펌프 : 에 관한 것으로,
수중펌프의 흡입나팔관(23) 외부 원주상 일 측면에 설치되는 적어도 하나 이상의 방진장치 설치용 브라켓(24) ; 과

상기 방진장치 설치용 브라켓(24)에 설치되는 적어도 하나 이상의 펌프 진동을 방지하는 방진장치(30) ; 와

상기 방진장치(30)의 일단 측은 상기 방진장치 설치용 브라켓(24)에 취부되고, 상기 방진장치(30)의 타단 측이 설치되는 중심부가 천공된 지수고무 고정원판(33) ; 과

상기 지수고무 고정원판(33) 하부와 펌프 좌대(51)의 상부에 설치되고 끝부분은 흡입나팔관(23) 밑면에 취부되어, 흡입나팔관(23) 끝단과 지수고무 고정원판(33)의 안쪽 끝단이 이루는 틈새, 또는, 흡입나팔관(23) 끝단과 펌프 좌대(51) 안쪽 끝단이 이루는 틈새를 통한 유체의 이동을 방지하기 위한 지수고무판(34) ; 으로
구성되어 펌프의 진동을 방지하는 것을 특징으로 하는 방진장치가 구비되는 수중펌프.A submersible pump having a vibration isolating device,
At least one anti-vibration device mounting bracket (24) installed on one side of the outer peripheral side of the suction fall tube (23) of the submersible pump; and

An anti-vibration device (30) installed on the anti-vibration device mounting bracket (24) to prevent at least one pump vibration; Wow

One end of the vibration isolating device 30 is attached to the vibration isolating device mounting bracket 24 and the center portion of the vibration isolating device 30 is provided with the other end of the vibration isolating device 30; and

The end of the suction fall tube 23 is connected to the lower end of the absorbent rubber fixing disk 33 and the upper end of the pump base 51. The end of the suction fall tube 23 is connected to the end of the suction fall tube 23, An exponential rubber plate 34 for preventing the fluid from moving through a gap formed between the tip of the suction fall tube 23 and the inner end of the pump chamber 51; to
Wherein the pump is configured to prevent vibration of the pump. 삭제delete
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US10240609B2 (en) * 2015-05-29 2019-03-26 Ge Aviation Systems Llc Screw pump and impeller fan assemblies and method of operating
KR102345193B1 (en) 2020-11-17 2021-12-30 주식회사 동원피앤피 Anti-vibration and seismic fixing device for fire fighting equipment
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KR102444811B1 (en) * 2022-06-30 2022-09-19 (주)덕성기업사 Submersible pump capable of handling foreign substances in the sump
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