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Durability test device and method for water meter

A durability test and water meter technology, applied in the direction of testing/calibrating devices, measuring devices, testing/calibrating volume flow, etc., can solve the problems of large hardware loss and high test cost, and achieve the goal of improving efficiency, no loss, and saving manpower and material resources Effect

Active Publication Date: 2020-06-05
HUNAN INST OF METROLOGY & TEST
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  • Claims
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AI Technical Summary

Problems solved by technology

[0008] Aiming at the deficiencies of the prior art, the present invention provides a water meter durability test device and method to solve the problems of large hardware loss and high test cost of the existing device

Method used

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  • Durability test device and method for water meter
  • Durability test device and method for water meter
  • Durability test device and method for water meter

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Embodiment Construction

[0036] The technical solutions in the present invention are clearly and completely described below in combination with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only some of the embodiments of the present invention, not all of them. Based on the embodiments of the present invention, all other embodiments obtained by persons of ordinary skill in the art without creative efforts fall within the protection scope of the present invention.

[0037] Such as figure 1 and 2 As shown, the durability test device of a water meter provided by the present invention includes: a circulating water tank, a vertical water pump 1, a flow meter 6, a PLC controller 13, a touch display screen, a meter clip 4, a constant torque frequency converter 14. Vector motor 15, first temperature sensor 3 and second temperature sensor 12, pressure sensor 2, and liquid level sensor 7;

[0038] The circulating water tank communicates with th...

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Abstract

The invention discloses a durability test device and method for a water meter, and relates to the technical field of durability tests. According to the device and the method, a constant-torque frequency converter is matched with a vector type motor to drive a vertical water pump, and the vertical water pump supplies water normally in a follow current part of a continuous flow test; the cutoff partof the intermittent flow test and the constant torque frequency converter instantaneously brake the vertical water pump in a resistance braking mode, the cutoff purpose is achieved, a stop valve doesnot need to be installed on a pipeline, and the intermittent flow test achieves non-valve starting and stopping, so that loss of valve accessories is avoided, the maintenance frequency of the deviceis reduced, and the test cost is reduced.

Description

technical field [0001] The invention belongs to the technical field of durability testing, and in particular relates to a durability testing device and method of a water meter. Background technique [0002] The durability test device of the existing water meter is 3 meters, and the device consists of a circulating water tank, a vertical water pump, a pipeline, an electric control valve, an instantaneous flow meter, a PLC controller, a control circuit, temperature and pressure measuring elements, and a touch screen , printer and other components, both continuous flow and intermittent flow test function. The volume of circulating water tank is 0.5m 3 , DC motor control ball valve is used as the executive element of the intermittent flow test, and the control system adopts the form of PLC+touch screen, which is convenient for monitoring the parameters of the test process. The device has a self-protection function. When the test parameters deviate or the pipeline fails, it can...

Claims

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Application Information

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IPC IPC(8): G01F25/00
CPCG01F25/10
Inventor 向德华李宁周艳徐旷宇欧阳琛
Owner HUNAN INST OF METROLOGY & TEST
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