KR200409015Y1 - Tilt Vibration Analysis Device of Axial Flow Pump - Google Patents

Tilt Vibration Analysis Device of Axial Flow Pump Download PDF

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KR200409015Y1
KR200409015Y1 KR2020050034178U KR20050034178U KR200409015Y1 KR 200409015 Y1 KR200409015 Y1 KR 200409015Y1 KR 2020050034178 U KR2020050034178 U KR 2020050034178U KR 20050034178 U KR20050034178 U KR 20050034178U KR 200409015 Y1 KR200409015 Y1 KR 200409015Y1
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South Korea
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pump
analysis device
vibration analysis
vibration
submersible
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KR2020050034178U
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Korean (ko)
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김종욱
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제일기계공업주식회사
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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
    • 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
    • F04D11/00—Other rotary non-positive-displacement 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
    • F04D15/00—Control, e.g. regulation, of pumps, pumping installations or systems
    • F04D15/0077—Safety measures
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
    • F04D—NON-POSITIVE-DISPLACEMENT PUMPS
    • F04D15/00—Control, e.g. regulation, of pumps, pumping installations or systems
    • F04D15/02—Stopping of pumps, or operating valves, on occurrence of unwanted conditions
    • F04D15/0245—Stopping of pumps, or operating valves, on occurrence of unwanted conditions responsive to a condition of the pump
    • 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
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16B—DEVICES FOR FASTENING OR SECURING CONSTRUCTIONAL ELEMENTS OR MACHINE PARTS TOGETHER, e.g. NAILS, BOLTS, CIRCLIPS, CLAMPS, CLIPS OR WEDGES; JOINTS OR JOINTING
    • F16B5/00—Joining sheets or plates, e.g. panels, to one another or to strips or bars parallel to them
    • F16B5/02—Joining sheets or plates, e.g. panels, to one another or to strips or bars parallel to them by means of fastening members using screw-thread
    • 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
    • F05D2260/60—Fluid transfer
    • 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)
  • General Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Control Of Non-Positive-Displacement Pumps (AREA)
  • Structures Of Non-Positive Displacement Pumps (AREA)

Abstract

본 고안의 수중 모터 펌프는 구조상 수중에 설치되며, 특히 수중축 사류펌프는 일반적으로 칼럼파이프라는 원형파이프 구조물 속에 모터펌프가 설치되는데 이와 같은 설치에서 운전중 발생하는 이상을 조기에 정확히 수치에 의해 과학적으로 발견하여 수리 비용의 절감과 진동의 감지 및 분석을 통하여 모터펌프의 운전상태를 진단하므로서, 회전체의 밸런싱 확인, 베어링 이상 진등의 결과를 용이하게 과학적으로 분석 판단할 수 있는 구조물을 조인트 박스 내의 터미널 보드에 설치한 구조의 수중축 사류펌프의 기울기 및 진동분석장치에 관한 고안이다.The submersible motor pump of the present invention is installed underwater in structure. Especially, the submersible axial pump is generally installed in a circular pipe structure called a column pipe. It is possible to easily and scientifically analyze the results of checking the balance of the rotor and the progress of the bearing, etc. by diagnosing the operating state of the motor pump by reducing the repair cost and detecting and analyzing the vibration. It is the devise related to the slope and vibration analysis device of the submersible axial pump installed in the terminal board.

조인트 박스, 터미널보드, 고정구멍기판, 고정판, 보울트, 감지센서부 구조물 Joint box, terminal board, fixing hole board, fixing plate, bolt, sensor structure

Description

수중축 사류펌프의 기울기 및 진동분석장치{Tilt Vibration Analysis Device of Axial Flow Pump}Tilt Vibration Analysis Device of Axial Flow Pump

도 1은 본 고안에 의한 수중펌프의 요부를 절개하여 보인 정단면 예시도.1 is an exemplary cross-sectional view showing the main portion of the submerged pump according to the present invention.

도 2는 본 고안의 요부사시도Figure 2 is a main view of the present invention

도 3은 본 고안의 종단면도3 is a longitudinal sectional view of the present invention

도 4는 본 고안에 따른 전원제어장치의 블록도를 나타낸 참고도4 is a reference diagram showing a block diagram of a power supply control apparatus according to the present invention

*도면의 주요부분에 대한 부호의 설명** Description of the symbols for the main parts of the drawings *

10-조인트 박스 12-터미널 보트10-Joint Box 12-Terminal Boat

14,14´,14˝,14´˝-고정구멍 16,16´,16˝,16´˝-보울트14, 14 ', 14', 14 '-Fixing hole 16, 16', 16 ', 16'-Bolt

18-기판 20-고정판18-substrate 20-fixed plate

20´-일측면 22-전원선20´-one side 22-power line

24-감지센서부 26,26´-고정구멍24-detection sensor section 26,26´-fixed hole

28,28´-보울트 30-구조물28,28´-Bolt 30-Structure

본 고안은 수중(水中)에 설치되는 수중모터펌프(UnderWaterMotorPump)로서, 특히 칼럼파이프(Colummpipe)라는 원형파이프 속에 설치되는 수중축사류펌프의 기울기 및 진동분석장치에 관한 것이다.The present invention is an underwater motor pump (UnderWaterMotorPump) to be installed in the water, and particularly relates to the tilt and vibration analysis device of the submerged shaft flow pump installed in a circular pipe called a column pipe (Colummpipe).

일반적으로 수중모터펌프는 그 구조상 수중에 설치되는데, 이때 컬럼 파이프라는 원형 파이프 속에 설치하고 여기에 컬럼 파이프 카바(Cover)를 덮어서 사용하기 때문에 사용중 펌프가 기울어지거나 또는 임펠러(impella)에 이물질(異物質)이 끼어 일어나는 이상현상(異常現牀)및 진동을 즉각적으로 외부에서 명확히 분석하여 확인하기가 용이하지 못하였다.In general, the submersible motor pump is installed underwater in the structure, in which it is installed in a circular pipe called a column pipe and covered with a column pipe cover, so that the pump is inclined or foreign matter is impregnated in the impeller. It was not easy to identify and analyze the abnormal phenomena and vibration caused by externally immediately.

이와 같은 어려움 때문에 모터 펌프에 이상이 생겼을 때는 대부분이 칼럼 파이프 속에서 모터 펌프를 꺼내어 보거나 또는 칼럼 파이프의 저면으로 숙련된 기술자가 직접 들어가서 확인하는 비능율적인 방법으로 실시하고 있어서 확인방법에 많은 시간과 비용이 소요될 뿐만 아니라 특히 펌프장 바닥에는 인체에 유해(有害)한 가스가 잔존해있어서 작업중 안전사고의 위험성을 항상 수반하고 있다.Because of these difficulties, most of the problems occur when the motor pump is pulled out of the column pipe or by an inefficient method that a skilled technician enters and checks the bottom of the column pipe. Not only is it costly, there is always a risk of safety accidents at work due to the presence of harmful gases in the pump floor.

그리하여 근간에는 운전중(運佺中)수중 모터 펌프가 칼럼파이프(Colummpipe)속에서 수직상태로 똑바로 설치되었는지 아니면 비스듬하게 기울어진 상태로 설치되었는지와, 또한 이물질이 모터 펌프의 임펠러(lmpeller)에 끼이지 않았는지를 확인하는 수단과 진동분석(振動分析)을 기존의 경험원칙에 의해 어림짐작으로 단순하게 판단하여 유지 관리하고 있는 실정이어서 정확한 수치(數置)에 의한 과학적인 판단에 기초하여 근본적으로 이루어지지 못하고 있는 것도 또 하나의 문제점으로 남아 있다.Thus, during operation, whether the underwater submersible motor pump is installed vertically or obliquely in a column pipe, and foreign matter is caught in the motor pump's impeller. It is a situation that simply judges and maintains the means of checking whether it is not and the vibration analysis based on the existing empirical principle, and it is fundamentally based on scientific judgment based on accurate numerical values. Not doing so remains another problem.

본 고안은 칼럼파이프 속에 카바(cover)로 덮어서 설치되어지는 수중축 사류펌프가 운전중 칼럼 파이스 속에서 기울어지거나 또는 모터 펌프의 임펠러에 이물질(異物質)이 끼이는 현상 및 진동을 외부에서 육안(肉眼)으로 정확한 수치에 의해 과학적으로 용이하게 분석하여 판단하므로서 수중축 사류펌프에 관한 유지관리와 운전비용의 절감은 물론 운전상태의 안전을 최상으로 제공하고저 하는데 그 목적을 둔 것이다.The present invention is to observe the phenomenon and the vibration of the underwater shaft pump, which is installed by covering the cover in the column pipe, inclined in the column pipe during operation, or the foreign matter caught in the impeller of the motor pump. The purpose of this study is to provide the best safety of the operating condition as well as the maintenance and operation cost of the submersible shaft pump, as well as the scientific and easy analysis and judgment based on the exact figures.

본 고안은 상기와 같은 문제점을 해소하고 목적달성에 현저한 효과를 구현하기 위하여 고안한 것으로서 칼럼파이프라는 원형 파이프 속에 커버를 덮어 설치되는 수중모터펌프의 조인트 박스 터미널 보드(joimt Box Terminal Board)상에 각 모서리로 천공된 고정공을 통해 보울트(4개)로 장방형의 기판을 설치하고 이 기판(基板)의 중앙으로 가로 질러 직각(直角=90)으로 이와 일체로 입설(立設)된 고정판의 일측면에 좌우의 고정공을 통해 각각 보울트로 고정 취부시킨 감지센서부를 구비하는 구조물로 공급되는 전원에 의해 상기 센서부로부터 신호를 받아 분석(分析)하고 출력하는 전원제어부로 이루어진 수중축 사류펌프의 기울기 및 진동분석장치를 특징으로 한다.The present invention was devised to solve the above problems and to realize a remarkable effect on the achievement of the purpose, and the column pipes were placed on the joint box terminal board of the submersible motor pump installed by covering the cover in a circular pipe. One side of the fixed plate installed in a rectangular board with four bolts through the fixing holes drilled into the corners, and vertically installed at right angles (直角 = 90) across the center of the substrate. The inclination of the underwater shaft drift pump consisting of a power control unit for receiving and analyzing a signal from the sensor unit by the power supplied to the structure having a sensing sensor unit fixed to the bolt through the left and right fixing holes respectively; It features a vibration analysis device.

이하 첨부된 도면을 참조하여 본 고안을 상세히 설명한다.Hereinafter, the present invention will be described in detail with reference to the accompanying drawings.

도 1은 본 고안이 설치된 수중펌프의 요부구성을 일부 절개하여 보인 단면예시도이며, 도2와 도 3은 본 고안의 요부사시도와 종단면도이다.1 is a cross-sectional exemplary view showing a part of the main portion of the submersible pump installed in the present invention, Figures 2 and 3 is a main part perspective view and a longitudinal sectional view of the present invention.

도 4는 본 고안에 따른 전원 제어부의 블록도를 나타낸 참고도이다.4 is a reference diagram showing a block diagram of a power control unit according to the present invention.

즉 본 고안은 수중펌프(P)의 상부로 위치하는 조인트 박스(joint Box)(10)내에 설치된 터미널 보드(Terminal Board)(12)에 각 모서리의 고정구멍(14)(14´(14˝)(14´˝)을 통해 보울트(16)(16´)(16˝)(16´˝)로 고정되는 장방형의 기판(18)과, 이 기판(18)의 중앙으로 가로 질러 직각(90도)으로 고정판(20)이 이와 일체로 입설되고 이 고정판(20)의 일측면(20´)에 횡방향으로 전원선(22)이 저부로 연결된 감지센서부(24)가 좌우양측의 고정구멍(26)(26´)에 의해 보울트(28)(28´)로 상기 고정판(20)에 취부 고정되어진 구조물(30)로서,In other words, the present invention is fixed to the terminal board (12) installed in the joint box (10) located above the submersible pump (P) fixing holes 14 (14 '(14˝) of each corner) A rectangular substrate 18 fixed by bolts 16, 16 ', 16' and 16 ', through 14', and at right angles (90 degrees) across the center of the substrate 18; As a result, the fixing plate 20 is installed integrally therewith, and the sensing sensor unit 24 having the power line 22 connected to the bottom of the fixing plate 20 in the transverse direction is fixed to the left and right fixing holes 26. As the structure 30 fixed to the fixing plate 20 by bolts 28 and 28 'by means of

미설명부호 32는 컬럼파이프이고, 34는 본 고안에 적용되어지는 전원제어장치의 참고예시도를 나타낸 것이다.Reference numeral 32 is a column pipe, and 34 shows a reference example of a power supply control device applied to the present invention.

이와 같이 구성된 본 고안의 동작을 설명하면, 본 고안의 구조물(32)은 수중축 사류펌프(P)를 설치하여 운전할 때 펌프(P)가 정상적으로 컬럼파이프(34)안에 설치되어 운전되고 있는지 여부를 기울기를 판별하는 감지센서부(24)와 전원제어부(34)의 제어장치를 통하여 판별하고 펌프(P)의 임펠라에 이물질이 끼이는 것과 기타 베어링과 회전자가 이상시 발생하는 진동주파수를 분석하여 이상 여부를 모터펌프(P)를 인양(또는 분해)하지 않고 분석할 수 있도록 설치 제작된 구조물(30)의 기판(18)상으로 수직 입설된 고정판(20) 설치된 감지센서부(24)에 의해 감지할 수 있도록 이를 진동기 상부의 조인트 박스(10)에 설치되며, 또한 모터펌프(P)를 컬럼파이프(32)안에 설치하여 상기의 감지센서부(24)로부터 감지되는 신호를 감지센서부(24)로부터 감지되는 신호를 전원제어부(34)에 의한 제어장치에서 분석하게 됨에 따라 이때 기울기 장치에서 제언신호는 X.Y측의 기울기 정보를 아나로그 신호를 변 환시켜 제어장치로 보내게 됨과 동시에 제어장치에서는 기설정된 정보에 의하여 이상유무를 판단하여 출력을 내보내게 된다.Referring to the operation of the present invention configured as described above, when the structure 32 of the present invention is installed and operated by the submerged shaft pump (P) whether the pump (P) is normally installed in the column pipe (34) is operated. Determination through the control device of the detection sensor 24 and the power control unit 34 to determine the inclination, and analyzing the vibration frequency generated when the foreign matter stuck in the impeller of the pump (P) and other bearings and rotor abnormalities Whether or not the motor pump P is detected by the detection sensor unit 24 installed on the fixed plate 20 vertically mounted on the substrate 18 of the structure 30 is installed to be analyzed without lifting (or disassembly). This is installed in the joint box 10 of the upper part of the vibrator, and also installed the motor pump (P) in the column pipe 32 to detect the signal detected from the sensor section 24 of the sensor section 24 Signal detected from the As analyzed by the control device by the fisherman 34, the suggestion signal in the tilt device converts the inclination information on the XY side into an analog signal and sends it to the control device. Will output the output.

또한 모터펌프(P)의 진동분석은 모터(P)가 정상적으로 설치되어 운전중에 신호를 취득하여 분석하게 되는데 가령, 이물질이 펌프(P)의 임펠러에 끼이게 되면 회전 주파수에 해당하는 진동이 증가하게 되며, 이 신호를 진동감지센서부(24)로 제어부(34)의 제어장치로 보내서 이를 분석하여 진동주파수에 따라 분석하게 된다.In addition, the vibration analysis of the motor pump (P) is obtained by analyzing the signal during the operation of the motor (P) is normally installed, for example, if the foreign matter is caught in the impeller of the pump (P) to increase the vibration corresponding to the rotation frequency The signal is sent to the control device of the control unit 34 to the vibration sensor unit 24 to analyze it according to the vibration frequency.

또한 이와 같이 베어링 이상시에는 베어링의 볼수(Ball 數) 및 진동기 회전수와 관련된 진동주파수 성분이 검출되게 되며, 진동기 회전자가 이상시에는 회전자 권선수(券線數)에 해당하는 진동주파수 성분이 감지센서부(24)와 분석장치를 통하여 분석되어지므로서, 기울기나 진동의 신호를 분석하여 기설정된 경보값에 의하여 출력을 내보내줌으로서, 설치 운전중 수중모터펌프(P)의 기울기나 진동을 종래와는 달리 외부에서 정확히 판단하여 분석할 수 있게 하므로서, 수중축 사류펌프에 관한 유지관리와 운전비용의 절감은 물론 운전상태를 최상으로 안전하게 할 수 있는 것이다.In addition, in the case of a bearing abnormality, vibration frequency components related to the number of balls and vibrator rotation of the bearing are detected, and when the vibrator rotor is abnormal, the vibration frequency component corresponding to the number of turns of the rotor is detected. As it is analyzed by the unit 24 and the analysis device, by analyzing the signal of the tilt or vibration and outputting the output by the preset alarm value, the tilt and vibration of the submersible motor pump (P) during the installation operation and the Since it can be accurately judged and analyzed from the outside, the maintenance and operation cost of the submersible shaft pump can be reduced as well as the operation state can be safely made at the best.

본 고안은 상술한 특정의 실시예와 관련하여 설명하였지만 첨부된 등록청구범위에서 나타난 고안의 사상 및 영역으로부터 벗어나지 않는 한도내에서 다양한 개조와 변화가 가능하다는 것은 당업계에서 통상의 지식을 가진자라면 누구나 쉽게 알 수 있을 것이다.Although the present invention has been described with reference to the specific embodiments described above, it will be apparent to those skilled in the art that various modifications and variations can be made without departing from the spirit and scope of the invention as set forth in the appended claims. Anyone can see it easily.

이상에서 설명한 바와 같이 본 고안은 수중모터펌프를 설치 운전할 때 이와 관련된 펌프의 이상유무를 여부에서 육안으로 정확한 수치에 의해 체계적이고 과학적으로 판단하여 해결할 수 있고, 또한 저렴하고 간단한 설치로 비용 및 시간의 절감효과는 물론 이상유무를 조기에 발견하여 제거하므로서 유지관리 비용의 절감과 펌프의 수평을 장구히 하는 효과를 얻을 수 있다.As described above, the present invention can be solved by systematically and scientifically judging by accurate figures with the naked eye whether or not there is an abnormality in the related pump when installing and operating an underwater motor pump. As well as savings, the early detection and removal of abnormalities can reduce maintenance costs and increase the level of the pump.

또한 PC를 이용한 자료관리를 통하여 경향분석과 변화 관찰이 용이한 이점과 모터펌프의 고장으로 인하여 발생할 수 있는 재해로부터 모터펌프를 효율적으로 관리하는 효과도 함께 할 수 있다.In addition, it is possible to easily manage trends and observe changes through PC data management, and to effectively manage motor pumps from disasters that may occur due to failure of motor pumps.

Claims (1)

수중모터펌프(P)의 상부로 위치하는 조인트 박스(10)내에 설치된 터미널 보드(12)에 각 모서리의 고정구멍(14)(14´)(14˝)(14´˝)을 통해 보울트(16)(16´)(16˝)(16´˝)로 고정되는 장방형의 기판(18)과, 이 기판(18)의 중앙으로 가로 질러 직각으로 고정판(20)이 이와 일체로 입설되고, 이 고정판(20)의 일측면(20´)에 횡방향으로 전원선(22)이 저부로 연결된 감지센서부(24)가 좌우양측의 고정구멍(26)(26´)에 의해 보울트(28)(28´)로 상기 고정판(20)의 일측면(20´)으로 취부고정되어진 구조물(30)를 특징으로 하는 수중축 사류펌프의 기울기 및 진동분석장치.Bolts 16 through terminal holes 12, 14 '(14') and 14 '(14') at each corner of the terminal board 12 installed in the joint box 10 located above the submersible motor pump P. A rectangular substrate 18 fixed at 16 '(16') (16 '), and a fixed plate 20 is placed integrally therewith at right angles across the center of the substrate 18. The sensing sensor section 24, in which the power supply line 22 is connected to the bottom of one side 20 'in the transverse direction, has the bolts 28 and 28 by the fixing holes 26 and 26' on the left and right sides. ´) tilt and vibration analysis device of the underwater axis convection pump, characterized in that the structure 30 is fixed to one side (20 ') of the fixed plate (20).
KR2020050034178U 2005-12-05 2005-12-05 Tilt Vibration Analysis Device of Axial Flow Pump KR200409015Y1 (en)

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Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR100922531B1 (en) 2009-07-23 2009-10-21 (주)대진정공 Water pump with reverse-rotation detecter

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR100922531B1 (en) 2009-07-23 2009-10-21 (주)대진정공 Water pump with reverse-rotation detecter

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