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A Flow Control Method of Sewage Well Based on Historical Data

A technology of flow control and historical data, which is applied in the direction of pump control, liquid variable capacity machinery, machine/engine, etc., can solve the problems of inability to stably control the water storage volume of sewage wells, and the inability to reasonably balance the workload of water pumps, etc., to extend the use of equipment The effect of life, load balancing, reduction of failure rate and maintenance frequency

Active Publication Date: 2019-06-18
浙江融合环境科技有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] The present invention mainly solves the technical problems existing in the prior art that the workload of each water pump cannot be reasonably balanced, and the water storage in the sewage well cannot be stably controlled, and provides a method that can reasonably share the workload and working time of each water pump, improve the service life of the water pump, and stabilize Flow control method for sewage wells based on historical data of water storage

Method used

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  • A Flow Control Method of Sewage Well Based on Historical Data
  • A Flow Control Method of Sewage Well Based on Historical Data
  • A Flow Control Method of Sewage Well Based on Historical Data

Examples

Experimental program
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Embodiment

[0033] Embodiment: A sewage well flow control method based on historical data in this embodiment, such as figure 1 As shown, including the following steps:

[0034] S001. The controller obtains the sewage inflow rate through the flow meter, and the controller obtains the sewage storage in the sewage well through the water level gauge;

[0035] S002, the controller predicts the value Q according to the water inlet rate s And the average sewage inflow rate Q during the last working period 1 Determine the number of pumps M to be started;

[0036] S003. The controller starts the M water pumps with the smallest priority value;

[0037] S004: After the water pump works for a working period, recalculate the priority value of each water pump, and then jump to step S002.

[0038] The whole system includes a flow meter set at the sewage inlet, a water level gauge set in the water well and several water pumps. The inlet of the pump is connected to the bottom of the sewage well, and the outlet of ...

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Abstract

The invention discloses a hold well flow control method based on historical data. The hold well flow control method comprises the following steps of: S001, obtaining a sewage influx rate by a controller via a flow meter, and obtaining sewage storage amount in a hold well through a water level gauge; S002, determining quantity M of water pumps to be started according to a water inlet rate predictedvalue Qs and an average sewage influx rate Q1 within the last working period; S003, starting M water pumps with smallest priority values by the controller; and S004, re-calculating the priority valueof each water pump after the water pump works for a working period, and skipping to step S002. Quantity of the water pumps started at each period is dynamically controlled through the average sewageinflux rate and the water inlet rate predicated value, so that water level in the hold well is effectively controlled, stability of the whole treatment system is guaranteed, load of each follow-up treatment line is balanced, and stability within a future period is guaranteed. The scheme is suitable for all sewage treatment plants.

Description

Technical field [0001] The invention relates to the field of sewage flow control, in particular to a sewage well flow control method based on historical data. Background technique [0002] Sewage treatment is a very important part of environmental governance. Sewage generally includes domestic sewage and production sewage. Municipal sewage is usually purified by sewage treatment plants. [0003] After the sewage enters the sewage treatment plant through the pipeline, it is first discharged into the sewage well (or called the collection tank), and then pumped into the subsequent treatment tank through the water pump for treatment. Sewage wells mainly play a role in collecting sewage, which can reduce the impact of flow changes on the treatment system. [0004] Existing sewage wells generally control the operation of the pumps according to the needs of the treatment tank, or start the pumps in a fixed sequence, and cannot balance the working hours of the pumps. It is easy to cause s...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): F04B49/06F04B49/02
CPCF04B49/02F04B49/06
Inventor 郑丽莉赵国龙沈方敏
Owner 浙江融合环境科技有限公司
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