Automatic siphon breaking device for outlet of substrate pump of settling tank

By using a π-shaped pipe and check valve structure in the sedimentation tank to automatically control the siphon path, the problem of excessive liquid level in the black water buffer tank after the substrate pump is shut down is solved, overflow prevention is achieved automatically, and the need for manual operation and safety risks are reduced.

CN223324093UActive Publication Date: 2025-09-12ZHEJIANG SATELLITE ENERGY CO LTD
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Patent Information

Application Number
CN202422775140.8
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2024-11-14
Publication Date
2025-09-12
Estimated Expiration
2034-11-14

AI Technical Summary

Technical Problem

During the industrial wastewater treatment process, when the liquid level in the sedimentation tank is higher than that in the black water buffer tank, the siphon phenomenon after the substrate pump is shut down causes the liquid level in the black water buffer tank to exceed the limit, posing an overflow risk. Manual operation is required to prevent it, which increases the manpower burden and poses a safety hazard.

Method used

A π-shaped pipe and check valve structure is adopted. The π-shaped pipe connects the substrate pump outlet and the black water buffer tank. The check valve automatically opens when the substrate pump stops, cutting off the siphon path to prevent black water from flowing into the buffer tank and exceeding the liquid level.

Benefits of technology

It can automatically cut off the siphon when the substrate pump stops, avoid overflow, reduce manual operation, reduce safety hazards, and has a simple structure, easy installation, and reduced modification costs.

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Abstract

The utility model provides an automatic siphon breaking device for an outlet of a substrate pump of a settling tank. The automatic siphon breaking device comprises the substrate pump, a black water buffer tank and an automatic siphon breaking device, the automatic siphon breaking device comprises a pi-shaped pipeline and a check valve, the pi-shaped pipeline is communicated with an outlet of the substrate pump and a connecting pipeline of the black water buffer tank, the check valve is arranged at the high point of the pi-shaped pipeline, and the check valve is connected with the pi-shaped pipeline. According to the automatic siphon breaking device, automatic siphon breaking is achieved through connection of the pi-shaped pipeline and the check valve. When the substrate pump is stopped, the check valve is automatically opened to cut off the siphon passage, so that black water is prevented from flowing to the black water buffer tank, and overflow is avoided; and when the substrate pump is started, the check valve is automatically closed, and a normal circulation path is recovered.
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