Title:
A METHOD FOR MONITORING A PUMP AND A PUMP USING THE METHOD
Document Type and Number:
WIPO Patent Application WO/2002/066835
Kind Code:
A1
Abstract:
The present invention relates to a method for monitoring a pump and a pump using the method. In order to precisely monitor the operation of a pump without using a flow sensor, according to the present invention, in a pre-programmed processor are pre-stored character diagram of the pump, density of the fluid as well as control parameters etc. During operation pressure at outlet and inlet of the pump is measured. Performance parameters are evaluated by processor according to said pressure, density, control parameter and character diagram. The evaluated parameters are used to control the pump. The pump according to the present invention comprises pressure sensors (6,7) equipped at the outlet and inlet of the pump (1), sensors for detecting fluid density in the working circumstance and a monitoring device (8) which receives signals from each sensors. The monitoring device comprises power system module (801), data collecting module (802), pre-programmed processor (803) and control operating module (804) etc. The idea of the present invention is maily used in industrial flow pump and monitoring of the same.
Inventors:
Donggui LI. (No. 100 Shengli Road, Xigang District Dalian City, Liaoning 1, 11602, CN)
Application Number:
PCT/CN2002/000039
Publication Date:
August 29, 2002
Filing Date:
January 23, 2002
Export Citation:
Assignee:
Donggui LI. (No. 100 Shengli Road, Xigang District Dalian City, Liaoning 1, 11602, CN)
International Classes:
F04D15/02; F04D15/02; (IPC1-7): F04B49/00
Attorney, Agent or Firm:
CCPIT PATENT AND TRADEMARK LAW OFFICE (Vantone New World Plaza, 8th Floor 2 Fuchengmenwai Street8, Beijing 7, 10003, CN)
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