| 摘要 |
The present invention concerns a system of measuring the hydraulic characteristics of pumping installations with a BY PASS system and with the main interest in the pumping station of ground water wells. The flow measurement with a BY PASS system is known from the existing technology. The present invention gives us the ability to measure accurately the flow through a multihole pipe, the total manometric, the pumping level, the pressure at the exit of the pump and the efficiency of the pump by the use of only one BY PASS system with three valves. The method and the mechanism of the present invention are highly reliable in the case of using a BY PASS system based on a magnetic flowmeter. The present invention is applicable to the management of a pump station so that information may be obtained about the study of hydraulic characteristics of the region where the pump will be installed, and about the measurement of the efficiency of the pumping installation. This information can help in the direction of taking all the necessary steps to save energy consumed by a pump station and more specificaly by a pump station of deep ground water wells. Such steps to save energy would involve effecting - by the aid of a computer and a frequency converter or a gear box - the pump's rpm, controlling the pump's performance and testing the pump manufacturer's credibility. |
