Open channel sewage flow meter verification/calibration device
A technology for calibrating devices and flowmeters, applied in the directions of testing/calibrating devices, measuring devices, testing/calibrating volume flow, etc., can solve the problem that the measurement liquid level and flow cannot be dynamically adjusted at the same time, and the stability of flow adjustment affects the results of verification/calibration , small flow control range, etc., to improve the accuracy of water level measurement, reduce the loss of water head, and improve the accuracy of flow
Active Publication Date: 2017-10-20
SOUTH CHINA INST OF ENVIRONMENTAL SCI MEP
View PDF4 Cites 4 Cited by
- Summary
- Abstract
- Description
- Claims
- Application Information
AI Technical Summary
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
the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
View moreImage
Smart Image Click on the blue labels to locate them in the text.
Smart ImageViewing Examples
Examples
Experimental program
Comparison scheme
Effect test
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 / 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 rectangula...
the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More PUM
Login to View More Abstract
The invention discloses an open channel sewage flow meter verification / calibration device, and belongs to the technical field of detection of fluid flow meter products. The device comprises a water flow regulating system, an open channel calibration section, an open channel test section and a backflow channel. The open channel calibration section and the open channel test section are connected and arranged on the backflow channel, the open channel calibration section is used for providing standard flow values serving as comparison, the open channel test section is used for providing a measuring value of a test flow meter, the water flow regulating system comprises an upper water storage tank, a lower water storage tank, a water feeding pipe, a water supply pipe, a lifting pump, a control brake valve A and a control brake valve B, water in the lower water storage tank is conveyed to the upper water storage tank through the lifting pump and the water feeding pipe with the control brake valve A, the upper water storage tank is connected with the open channel calibration section through the water supply pipe with the control brake valve B, a backflow channel inlet end for collecting water discharged by the open channel test section is arranged below the tail end of the open channel test section, and a backflow channel outlet is connected in the lower water storage tank. The device has the advantages that different water levels and flow rates are stably adjusted, system errors are small and the like, and the device has two key indexes for detecting water level and flow rate of the test flow meter.
Description
technical field [0001] The invention belongs to the technical field of fluid flowmeter product detection, and in particular relates to a verification / 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 pl...
Claims
the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More Application Information
Patent Timeline
Login to View More IPC IPC(8): G01F25/00
CPCG01F25/10
Inventor 蔡楠
Owner SOUTH CHINA INST OF ENVIRONMENTAL SCI MEP