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Measurement device for flow of rainwater runoff

A flow measurement device and runoff technology, which is applied in the direction of measurement devices, flow/mass flow, liquid/fluid solid measurement, etc., to achieve the effect of real-time reflection of flow changes and accurate measurement

Pending Publication Date: 2018-11-13
SUZHOU UNIV OF SCI & TECH
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

The main disadvantage of this method is that the sensor requires a liquid level height of at least about 25mm to work effectively, but in the actual rainfall process, the initial rainwater runoff and small rainfall cannot meet this requirement

Method used

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  • Measurement device for flow of rainwater runoff

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Embodiment Construction

[0013] A kind of rainwater runoff flow measuring device, see figure 1 : It comprises inspection well 9, upstream rainwater pipe 3, downstream rainwater pipe 10, the entrance of the inner cavity of inspection well 9 is connected to the outlet of upstream rainwater pipe 3, the outlet of the inner chamber of inspection well 9 is connected to the entrance of downstream rainwater pipe 10, the outlet of upstream rainwater pipe 3 and the downstream A connecting pipe 1 is arranged between the inlets of the rainwater pipe 10, the inlet diameter of the connecting pipe 1 is larger than the outlet diameter of the upstream rainwater pipe 3, and a flexible seal is arranged between the outer ring surface of the outlet of the upstream rainwater pipe 3 and the inner wall ring surface of the inlet of the connecting pipe 1 Circle 2, the outlet of the connecting pipe 1 is inserted into the inlet area of ​​the downstream rainwater pipe 10, the connecting pipe 1 is specifically a lightweight connect...

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Abstract

The invention provides a measurement device for the flow of rainwater runoff. The flow of rainwater runoff can be accurately measured by the device during a small rainfall amount, and meanwhile measurement of large flow can be considered. The device comprises an inspection well, an upstream rainwater pipe and a downstream rainwater pipe, an inlet of an inner cavity of the inspection well is connected to an outlet of the upstream rainwater pipe, and an outlet of the inner cavity of the inspection well is connected to an inlet of the downstream rainwater pipe. The device is characterized in thata connection pipe is arranged between the outlet of the upstream rainwater pipe and the inlet of the downstream rainwater pipe, the inlet dimeter of the connection pipe is larger than the outlet diameter of the upstream rainwater pipe, and a flexible seal ring is arranged between the outer annular face of the outlet of the upstream rainwater pipe and the annular face of the inner wall of an inletof the connection pipe; an outlet of the connection pipe is inserted in an inlet area of the downstream rainwater pipe, the connection pipe is specifically a light connection pipe, the upper portionof the connection pipe is connected to the force application end of a press rod through a vertical connection rod, and the force transfer portion of the press rod is pressed and installed on a pressure sensor.

Description

technical field [0001] The invention relates to the technical field of environmental protection water treatment, in particular to a rainwater runoff flow measurement device. Background technique [0002] With the emphasis on rainwater pollution in our country, many scientific research institutions have begun to study rainwater, and the measurement of rainwater runoff is an indispensable link. At present, most commercially available flowmeters use sensors to measure the velocity of flowing water in the pipeline, and then measure the liquid level height, and calculate the flow rate based on the cross-sectional area of ​​the water flow * flow rate. The main disadvantage of this method is that the sensor requires a liquid level height of at least about 25mm to work effectively, but in the actual rainfall process, the initial rainwater runoff and small rainfall cannot meet this requirement. Contents of the invention [0003] In view of the above problems, the present invention...

Claims

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Application Information

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IPC IPC(8): G01F1/00
CPCG01F1/00
Inventor 田永静
Owner SUZHOU UNIV OF SCI & TECH
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