Flow control method of sewage pump

Abstract

The invention relates to a flow control method of a sewage pump. The flow control method comprises the following steps that (1) the power and flow of the sewage pump are monitored; (2) the monitored power and flow of the sewage pump are compared with preset power and flow; (3) when the monitored power of the sewage pump is greater than or equal to the preset power, the rotating speed of the sewagepump is controlled to be increased, and the size of a water passing channel is increased to stabilize the water discharge; (4) when the monitored flow of the sewage pump is still smaller than the preset flow after the rotating speed of the sewage pump is controlled to be increased, a cutting blade is controlled to vertically move along a cutting opening to cut off sundries on a trash rack; and (5) whether the power of the sewage pump is reduced to a normal operation value or not is monitored, if not, a driving mechanism is controlled to move to perform the cutting action again, and if yes, cutting is completed, and the power and flow of the sewage pump continue to be monitored. The problem that a portable large-flow draining pump is easy to block when used in a sewage environment is solved, the drainage flow is ensured, and the drainage efficiency is improved.

Description

technical field [0001] The invention belongs to the technical field of water pump control, and in particular relates to a flow control method of a sewage pump. Background technique [0002] With the development of society, the amount of sewage and wastewater produced will also increase. The sewage will inevitably contain some larger domestic waste, such as: gloves, towels, cloth, shopping bags, etc., and even mixed with Objects such as some branches and weeds. However, when ordinary sewage pumps transport these sewage, the pump body will often be blocked, and debris will entangle the sewage pump inlet, causing the pump to fail to work. This is not only difficult to clean, but also affects the progress of drainage and the drainage flow. and efficiency. [0003] Especially for large-flow drainage pumps for flood fighting and emergency rescue, their general speed is relatively high, and compared with traditional drainage pumps, the particle passing capacity is lower. It is ea...

AI Technical Summary

Problems solved by technology

However, when ordinary sewage pumps transport these sewage, the pump body will often be blocked, and debris will entangle the sewage pump inlet, causing the pump to fail to work. This is not only difficult to clean, but also affects the progress of drainage and the drainage flow. and efficiency

[0003] Especially for large-flow drainage pumps for flood fighting and emergency rescue, their general speed is relatively high, and compared with traditional drainage pumps, the particle passing capacity is lower. It is easy to block when used in a sewage environment. It needs to be lifted up frequently and manually cleaned before it can continue to work normally. , seriously increasing the amount of manual labor and affecting efficiency

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