Santrifüj Pompada Hata Analizi ve Arıtımı

- Apr 21, 2020-

Santrifüjlü su pompasının arıza analizi ve arıtımı


Endüstriyel pompanın çalışmasındaki arızalar korozyon ve aşınma, mekanik arıza, performans hatası ve salmastra arızasına ayrılabilir. Bu dört çeşit arıza kafuru genellikle birbirini etkiler ve ayrılması zordur. Örneğin, çarkın korozyonu ve aşınması performans arızasına ve mekanik arızaya neden olacak ve salmastranın hasar görmesi de performans arızasına ve mekanik arızaya neden olacaktır.

Centrifugal pump

1. Corrosion and wear
Korozyonun ana nedeni uygunsuz malzeme seçimidir. Korozyon arızası meydana geldiğinde, ortam ve malzemenin iki yönünden çözülmelidir.
Aşınma genellikle bulamacın taşınmasında meydana gelir, ana neden ortam içinde katı parçacıkların olmasıdır. Pompa taşıma bulamacı için, pompanın aşınmaya karşı dirençli - parçalarına ek olarak, salmastra kirlerin istilasından kaçınmak için salmastra temiz sıvı ile yıkanmalı ve önlemek için pompada yıkama tesisleri kullanılmalıdır. akış kanalının tıkanması. Ayrıca, aşınma miktarı sabitlendiğinde aşınan parçalar değiştirilmelidir.
2. Mechanical failure
Titreşim ve gürültü ana mekanik arızalardır. Titreşimin ana nedenleri, farklı pompa milleri ve ana taşıyıcı, yetersiz temel sertliği veya temel batması, zayıf boru mukavemeti vb.Gibi rulman hasarı, kavitasyon ve zayıf montajdır.
3. Performance failure
Performans arızası esas olarak akış, kafa sıkıntısı, pompa kavitasyonu ve tahrik makinesi aşırı yükü ve diğer kazaları ifade eder.
Salmastra arızası esas olarak salmastrada sızıntı anlamına gelir. Salmastranın sızdırmazlığının ana nedenleri, salmastranın yanlış seçilmesi ve mil kovanının aşınmasıdır.
Mekanik salmastra sızıntısının ana nedeni, uç yüzün hasar görmesi veya yardımcı salmastra halkasının çizilmesi veya kırışmasıdır.

Centrifugal pump01

Santrifüj pompalarda yaygın arızalar ve arıtma yöntemleri

A. yatak ısısı


1.Reason
(1) Too much lubricating oil & nbsp; & nbsp; & nbsp; & nbsp; & nbsp; & nbsp; & nbsp; & nbsp; & nbsp; & nbsp; & nbsp;
(2) Too little lubricating oil & nbsp; & nbsp; & nbsp; & nbsp; & nbsp; & nbsp; & nbsp; & nbsp; & nbsp; & nbsp; & nbsp;
(3) Deterioration of lubricating oil & nbsp; & nbsp; & nbsp; & nbsp; & nbsp; & nbsp; & nbsp; & nbsp; & nbsp; & nbsp; & nbsp;
(4) The unit is not concentric & nbsp; & nbsp; & nbsp; & nbsp; & nbsp; & nbsp; & nbsp; & nbsp; & nbsp; & nbsp; & nbsp;
(5) Vibration
2.Method & nbsp; & nbsp; & nbsp; & nbsp; & nbsp; & nbsp; & nbsp; & nbsp; & nbsp; & nbsp; & nbsp;
(1) Oil reduction & nbsp; & nbsp; & nbsp; & nbsp; & nbsp; & nbsp; & nbsp; & nbsp; & nbsp; & nbsp; & nbsp;
(2) Come on & nbsp; & nbsp; & nbsp; & nbsp; & nbsp; & nbsp; & nbsp; & nbsp; & nbsp; & nbsp; & nbsp;
(3) Drain and clean the oil tank and add new oil & nbsp; & nbsp; & nbsp; & nbsp; & nbsp; & nbsp; & nbsp; & nbsp; & nbsp; & nbsp; & nbsp;
(4) Check and adjust the alignment of the pump and prime mover & nbsp; & nbsp; & nbsp; & nbsp; & nbsp; & nbsp; & nbsp; & nbsp; & nbsp; & nbsp; & nbsp;
(5) Check the balance of the rotor or operate at a small flow rate


B.Pompa sıvı vermez


1.Reason
(1) Air in suction line or pump & nbsp; & nbsp; & nbsp; & nbsp; & nbsp; & nbsp; & nbsp; & nbsp; & nbsp; & nbsp; & nbsp;
(2) Inlet or outlet side pipe valve closed & nbsp; & nbsp; & nbsp; & nbsp; & nbsp; & nbsp; & nbsp; & nbsp; & nbsp; & nbsp; & nbsp;
(3) Use head higher than the maximum head of the pump & nbsp; & nbsp; & nbsp; & nbsp; & nbsp; & nbsp; & nbsp; & nbsp; & nbsp; & nbsp; & nbsp;
(4) Air leakage in pump suction pipe & nbsp; & nbsp; & nbsp; & nbsp; & nbsp; & nbsp; & nbsp; & nbsp; & nbsp; & nbsp; & nbsp;
(5) Wrong impeller rotation direction & nbsp; & nbsp; & nbsp; & nbsp; & nbsp; & nbsp; & nbsp; & nbsp; & nbsp; & nbsp; & nbsp;
(6) Suction height too high & nbsp; & nbsp; & nbsp; & nbsp; & nbsp; & nbsp; & nbsp; & nbsp; & nbsp; & nbsp; & nbsp;
(7) Suction line too small or debris blocked & nbsp; & nbsp; & nbsp; & nbsp; & nbsp; & nbsp; & nbsp; & nbsp; & nbsp; & nbsp; & nbsp;
(8) Speed discrepancy
2.Method
(1) Fill with liquid and remove air & nbsp; & nbsp; & nbsp; & nbsp; & nbsp; & nbsp; & nbsp; & nbsp; & nbsp; & nbsp;
(2) Open the valve & nbsp; & nbsp; & nbsp; & nbsp; & nbsp; & nbsp; & nbsp; & nbsp; & nbsp; & nbsp; & nbsp;
(3) Replace the pump with high lift & nbsp; & nbsp; & nbsp; & nbsp; & nbsp; & nbsp; & nbsp; & nbsp; & nbsp; & nbsp; & nbsp;
(4) Prevent leakage at the inlet side & nbsp; & nbsp; & nbsp; & nbsp; & nbsp; & nbsp; & nbsp; & nbsp; & nbsp; & nbsp; & nbsp;
(5) Correct motor steering & nbsp; & nbsp; & nbsp; & nbsp; & nbsp; & nbsp; & nbsp; & nbsp; & nbsp; & nbsp; & nbsp;
(6) Reduce the installation height of the pump and increase the pressure at the inlet & nbsp; & nbsp; & nbsp; & nbsp; & nbsp; & nbsp; & nbsp; & nbsp; & nbsp; & nbsp; & nbsp;
(7) Increase suction pipe diameter and eliminate blockage & nbsp; & nbsp; & nbsp; & nbsp; & nbsp; & nbsp; & nbsp; & nbsp; & nbsp; & nbsp; & nbsp;
(8) Make the motor speed meet the requirements

Centrifugal pump02

C. Yetersiz akış başlığı


1.Reason
(1) Impeller damaged & nbsp; & nbsp; & nbsp; & nbsp; & nbsp; & nbsp; & nbsp; & nbsp; & nbsp; & nbsp; & nbsp;
(2) Excessive wear of sealing ring & nbsp; & nbsp; & nbsp; & nbsp; & nbsp; & nbsp; & nbsp; & nbsp; & nbsp; & nbsp; & nbsp;
(3) Insufficient revolutions & nbsp; & nbsp; & nbsp; & nbsp; & nbsp; & nbsp; & nbsp; & nbsp; & nbsp; & nbsp; & nbsp;
(4) Inlet or outlet valve not fully open & nbsp; & nbsp; & nbsp; & nbsp; & nbsp; & nbsp; & nbsp; & nbsp; & nbsp; & nbsp; & nbsp;
(5) Air leakage in suction line & nbsp; & nbsp; & nbsp; & nbsp; & nbsp; & nbsp; & nbsp; & nbsp; & nbsp; & nbsp; & nbsp;
(6) There is a blockage in the pipe & nbsp; & nbsp; & nbsp; & nbsp; & nbsp; & nbsp; & nbsp; & nbsp; & nbsp; & nbsp; & nbsp;
(7) The density of the medium does not meet the requirements of the pump & nbsp; & nbsp; & nbsp; & nbsp; & nbsp; & nbsp; & nbsp; & nbsp; & nbsp; & nbsp; & nbsp;
(8) The head of the device is inconsistent with that of the pump
2.Method
(1) Replace the impeller with a new one & nbsp; & nbsp; & nbsp; & nbsp; & nbsp; & nbsp; & nbsp; & nbsp; & nbsp; & nbsp; & nbsp;
(2) Replace seal & nbsp; & nbsp; & nbsp; & nbsp; & nbsp; & nbsp; & nbsp; & nbsp; & nbsp; & nbsp; & nbsp;
(3) Increase speed as required & nbsp; & nbsp; & nbsp; & nbsp; & nbsp; & nbsp; & nbsp; & nbsp; & nbsp; & nbsp; & nbsp;
(4) Fully open & nbsp; & nbsp; & nbsp; & nbsp; & nbsp; & nbsp; & nbsp; & nbsp; & nbsp; & nbsp; & nbsp;
(5) Seal up the leak & nbsp; & nbsp; & nbsp; & nbsp; & nbsp; & nbsp; & nbsp; & nbsp; & nbsp; & nbsp; & nbsp;
(6) Remove blockage & nbsp; & nbsp; & nbsp; & nbsp; & nbsp; & nbsp; & nbsp; & nbsp; & nbsp; & nbsp; & nbsp;
(7) Recalculate or replace the motor with proper power & nbsp; & nbsp; & nbsp; & nbsp; & nbsp; & nbsp; & nbsp; & nbsp; & nbsp; & nbsp; & nbsp;
(8) Try to reduce the installation height of the pump


D. Ciddi conta sızıntısı


1.Reason
(1) Improper selection of sealing element materials & nbsp; & nbsp; & nbsp; & nbsp; & nbsp; & nbsp; & nbsp; & nbsp; & nbsp; & nbsp; & nbsp;
(2) Serious wear of friction pair & nbsp; & nbsp; & nbsp; & nbsp; & nbsp; & nbsp; & nbsp; & nbsp; & nbsp; & nbsp; & nbsp;
(3) The dynamic and static rings are not even & nbsp; & nbsp; & nbsp; & nbsp; & nbsp; & nbsp; & nbsp; & nbsp; & nbsp; & nbsp; & nbsp;
(4) Too large friction pair, static ring broken & nbsp; & nbsp; & nbsp; & nbsp; & nbsp; & nbsp; & nbsp; & nbsp; & nbsp; & nbsp; & nbsp;
(5) O - halka hasarlı
2.Method
(1) Explain the medium condition to the pump supplier with appropriate seals & nbsp; & nbsp; & nbsp; & nbsp; & nbsp; & nbsp; & nbsp; & nbsp; & nbsp; & nbsp; & nbsp;
(2) Replace worn parts and adjust spring pressure & nbsp; & nbsp; & nbsp; & nbsp; & nbsp; & nbsp; & nbsp; & nbsp; & nbsp; & nbsp; & nbsp;
(3) Readjust the seal assembly & nbsp; & nbsp; & nbsp; & nbsp; & nbsp; & nbsp; & nbsp; & nbsp; & nbsp; & nbsp; & nbsp;
(4) Şafttaki Dikey Hata Hatası 0 'dan daha az olacak şekilde tüm pompanın statik halkasını sökün ve değiştirin. 10 ve sızdırmazlık grubunu gerektiği gibi takın 0 010010 nbsp; {{1 }} 010010 nbsp; 0 010010 nbsp; 0 010010 nbsp; 0 010010 nbsp; 0 010010 nbsp; 0 010010 nbsp; 0 010010 nbsp; 0 010010 nbsp; 0 010010 nbsp; 0 010010 nbsp;
(5) O - halkasını değiştirin

Centrifugal pump03

E. pompa titreşim ve çeşitli


1.Reason
(1) The center line of pump shaft and motor shaft is out of alignment & nbsp; & nbsp; & nbsp; & nbsp; & nbsp; & nbsp; & nbsp; & nbsp; & nbsp; & nbsp; & nbsp;
(2) Shaft bending & nbsp; & nbsp; & nbsp; & nbsp; & nbsp; & nbsp; & nbsp; & nbsp; & nbsp; & nbsp; & nbsp;
(3) Bearing wear & nbsp; & nbsp; & nbsp; & nbsp; & nbsp; & nbsp; & nbsp; & nbsp; & nbsp; & nbsp; & nbsp;
(4) Pump cavitation & nbsp; & nbsp; & nbsp; & nbsp; & nbsp; & nbsp; & nbsp; & nbsp; & nbsp; & nbsp; & nbsp;
(5) The rotating part and the fixed part are worn & nbsp; & nbsp; & nbsp; & nbsp; & nbsp; & nbsp; & nbsp; & nbsp; & nbsp; & nbsp; & nbsp;
(6) Rotating part out of balance & nbsp; & nbsp; & nbsp; & nbsp; & nbsp; & nbsp; & nbsp; & nbsp; & nbsp; & nbsp; & nbsp;
(7) The pipeline or pump is blocked by sundries & nbsp; & nbsp; & nbsp; & nbsp; & nbsp; & nbsp; & nbsp; & nbsp; & nbsp; & nbsp; & nbsp;
(8) Closed the inlet valve
2.Method
(1) Correct alignment & nbsp; & nbsp; & nbsp; & nbsp; & nbsp; & nbsp; & nbsp; & nbsp; & nbsp; & nbsp; & nbsp;
(2) Replace the shaft with a new one & nbsp; & nbsp; & nbsp; & nbsp; & nbsp; & nbsp; & nbsp; & nbsp; & nbsp; & nbsp; & nbsp;
(3) Replace bearing & nbsp; & nbsp; & nbsp; & nbsp; & nbsp; & nbsp; & nbsp; & nbsp; & nbsp; & nbsp; & nbsp;
(4) Consult factory & nbsp; & nbsp; & nbsp; & nbsp; & nbsp; & nbsp; & nbsp; & nbsp; & nbsp; & nbsp; & nbsp;
(5) Overhaul the pump or improve the service condition & nbsp; & nbsp; & nbsp; & nbsp; & nbsp; & nbsp; & nbsp; & nbsp; & nbsp; & nbsp; & nbsp;
(6) Check the cause and try to eliminate it & nbsp; & nbsp; & nbsp; & nbsp; & nbsp; & nbsp; & nbsp; & nbsp; & nbsp; & nbsp; & nbsp;
(7) Check the blowdown & nbsp; & nbsp; & nbsp; & nbsp; & nbsp; & nbsp; & nbsp; & nbsp; & nbsp; & nbsp; & nbsp;
(8) Open the inlet valve and adjust the outlet valve


Motor aşırı yükü


1.Reason
(1) Pump and prime mover are not in alignment & nbsp; & nbsp; & nbsp; & nbsp; & nbsp; & nbsp; & nbsp; & nbsp; & nbsp; & nbsp; & nbsp;
(2) Increase of relative density of medium & nbsp; & nbsp; & nbsp; & nbsp; & nbsp; & nbsp; & nbsp; & nbsp; & nbsp; & nbsp; & nbsp;
(3) Friction in rotating part & nbsp; & nbsp; & nbsp; & nbsp; & nbsp; & nbsp; & nbsp; & nbsp; & nbsp; & nbsp; & nbsp;
(4) The resistance of the device becomes low, so that the running point is inclined to the place with large flow
2.Method
(1) Adjust the alignment of pump and prime mover
(2) Change operation process
(3) Repair friction parts
(4) Check and adjust the pressure of suction and discharge pipeline to the original change