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Verification or calibration device for open channel sewage flowmeter

A calibration device and flowmeter technology, which is applied in testing/calibration devices, measuring devices, liquid/fluid solid measurement, etc., can solve the problem of not being able to dynamically adjust the measured liquid level and flow at the same time, and the stability of flow adjustment affecting the results of verification/calibration , small range of flow control and other issues, to achieve the effect of improving the accuracy of water level measurement, reducing the loss of water head, and improving the accuracy of flow

Active Publication Date: 2019-06-21
SOUTH CHINA INST OF ENVIRONMENTAL SCI MEP
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Problems solved by technology

However, these devices cannot dynamically adjust the measured liquid level and flow at the same time, and the flow control range is small, and the flow regulation stability is not high, which directly affects the results of the sewage flowmeter product verification / calibration

Method used

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  • Verification or calibration device for open channel sewage flowmeter
  • Verification or calibration device for open channel sewage flowmeter

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Embodiment Construction

[0025] The present invention will be further described in detail below in conjunction with the accompanying drawings.

[0026] Open channel sewage flowmeter verification or calibration device, including water flow control system, open channel verification section, open channel test section and return channel.

[0027] The water flow control system includes an upper reservoir, a lower reservoir, an upper water pipe, a water supply pipe, a lift pump, a control gate valve A, a control gate valve B and an overflow pipe. There is a control gate valve A on the upper water pipe, and the upper reservoir is connected to the open channel verification section through a water supply pipe with a control gate valve B. One end of the overflow pipe is connected to the upper reservoir, and the other end is connected to the lower reservoir. After the water in the upper reservoir is full, it can flow back to the lower reservoir through the overflow pipe.

[0028] The return channel is a rectang...

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Abstract

Open channel sewage flowmeter verification or calibration device, including water flow control system, open channel verification section, open channel test section and return channel; open channel verification section for providing standard flow values ​​for comparison and for providing the flowmeter to be checked The open channel test sections of the measured values ​​are connected and are all set on the return channel; the water flow control system includes the upper reservoir, the lower reservoir, the upper water pipe, the water supply pipe, the lift pump, the control gate valve A, the control gate valve B, the lower water storage The water in the pool is transported to the upper reservoir by the lift pump through the upper water pipe with control gate valve A, and the upper reservoir is connected to the open channel verification section through the water supply pipe with control gate valve B; it is used to undertake the backflow of the water from the test section of the open channel The inlet of the canal is set under the end of the test section of the open channel, and the outlet of the return channel is connected to the lower reservoir. The invention has the advantages of stably adjusting different water levels and flows, small system errors, etc., has two key indicators for detecting the water level and flow of the flowmeter to be tested, and belongs to the technical field of fluid flowmeter product detection.

Description

technical field [0001] The invention belongs to the technical field of fluid flowmeter product detection, and in particular relates to a verification or calibration device for open channel sewage flowmeters. Background technique [0002] With the implementation of my country's energy conservation and emission reduction policies and the development of special research on water pollution, in order to strengthen the supervision and management of sewage flow measurement, the importance of equipped with good performance and stable and reliable flow monitoring devices has become more and more prominent. At present, the discharge of domestic industrial wastewater mainly adopts open channel water discharge, that is, "free water discharge without power conveying that is not full of tanks". By measuring the water head in front of the weir and flume, the flow rate can be calculated by theoretical formula. In my country, some open channel flowmeter verification / calibration devices have...

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G01F25/00
CPCG01F25/10
Inventor 蔡楠
Owner SOUTH CHINA INST OF ENVIRONMENTAL SCI MEP
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