Control system of water pump

Abstract

The invention provides a control system of a water pump. The control system comprises a water-level measuring device, a frequency converter and a control device, wherein the water-level measuring device is used for measuring the water level of cooling water in a foundation pit; the frequency converter is used for adjusting the revolving speed of the water pump; and the control device is connectedwith the water-level measuring device and the frequency converter, and used for adjusting the revolving speed of the water pump, by controlling the frequency converter, according to the water level measured by the water-level measuring device. Through the control system, a production adjustment can be made timely according to a real-time water level, so as to reduce the number of shutdown times ofthe equipment, improve the control stability, prolong the service time of the water pump, and reduce the cost as well as the labor intensity of maintainers.

Description

technical field [0001] The invention relates to the technical field of water pumps in tire alloy production lines, in particular to a control system for water pumps. Background technique [0002] Due to the low terrain of the crystal wheel foundation pit of the tire alloy production line, the cooling water cannot flow by itself, so a water pump is needed to transport the cooling water to the reservoir at a distance of 200 meters. That is, the water pump of the tire alloy production line is mainly used for pumping the cooling water of the aluminum blank and the crystallization wheel to prevent water penetration in the foundation pit from being too high, submerging the pump motor and the crystallization wheel motor, and idling of the water pump when the water level is too low. have a significant impact on production. [0003] At present, the water pump of the tire alloy production line is controlled by a contactor, which is prone to failure. There is a large amount of water ...

AI Technical Summary

Problems solved by technology

[0004] 1. The capacity of the dragging motor is large, and the current has a large impact on the power grid when starting, and the waste of electric energy is serious;

[0005] 2. The water pump starts and stops frequently, there is an inertial load, and the mechanical impact is large, resulting in a short service life of the water pump and low operational reliability;

[0006] 3. When the displacement is greater than the water intake, if the operator does not pay attention, the water pump will run dry, resulting in damage to the motor and water pump;

[0007] 4. The water pump often breaks down, causing the cooling water to overflow to the auxiliary well, causing water to enter the motor; the water supply of the water pump is unstable, and the water supply is too fast or too slow, which seriously affects the production organization and safety management.

[0008] 5. Unstable control, high pump failure rate and long maintenance time;

[0009] 6. No alarm prompt, not easy to observe the water level range

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