Full-automatic series verification calibrating device with pressure-resistant water meter

Abstract

The invention discloses a full-automatic series verification calibrating device with a pressure-resistant water meter. The full-automatic series verification calibrating device with the pressure-resistant water meter comprises a water meter calibrating foundation mechanism, flow counting mechanisms, a counting mechanism, a pipeline and an operation system. The water meter calibrating foundation mechanism comprises a testing tube section which is formed by multiple testing straight tube sections and multiple water meters to be inspected, wherein the multiple testing straight tube sections and the multiple water meters to be inspected are connected in series at intervals; each water meter to be inspected corresponds to a flow counting mechanism; the counting mechanism comprises an electronic weighting device and a working container; the tail end of the testing tube section is guided into the working container through the pipeline; the operation system is electrically connected with the flow counting mechanisms and the electronic weighting device in a two-direction mode. The full-automatic series verification calibrating device with the pressure-resistant water meter achieves full-automatic meter inspection by utilizing remote control of a computer combined with a single chip controlling mechanism which gives priority to the filed programmable logic controller (PLC) control or an embedded system. Compared with the inspection method of a meter in the prior art, the full-automatic series verification calibrating device with the pressure-resistant water meter greatly improves using efficiency of an inspection device of the water meter and shortens inspection time of the water meter on the basis of ensuring measuring accuracy and eliminating human errors, and greatly improves working efficiency of inspection staff in a large range at the same time.

Description

technical field [0001] The invention relates to a full-automatic calibrating and testing device for pressure-resistant water meters connected in series. Background technique [0002] Water meters are widely used in tap water, heat power, chemical industry and other industries. Enterprises or measurement departments that produce water meters need to perform performance verification on the indication error of these water meters in accordance with the regulations formulated by relevant departments. The national metrological verification regulations stipulate that three flow point error verifications, namely nominal flow, boundary flow and minimum flow, must be carried out on water meters. At present, most of them use the manual static start-stop volume comparison method. The test personnel need to manually switch the water flow three times, read the water indication number four times and read the water level of the standard gauge liquid level meter three times. Manually record ...

AI Technical Summary

Problems solved by technology

[0004] ①Manually operated calibrating device with pressure-resistant water meter in series: This device is a relatively primitive static start-stop volumetric method device, which uses the judgment of human eyes for manual operation, reads the number of red pointer, adjusts the flow point and verifies the opening and closing of water consumption. stop, there is a lot of human error

However, when the camera captures an image, it is easily interfered by the external light source and the air bubbles on the meter. It is very easy to cause the captured image to be unrecognizable or incorrectly recognized, resulting in confusing or unreadable readings. It is necessary for the operator to make corrections on the software in time. Computer operation requirements for personnel are relatively high

While the device does not completely solve the problem, it will also bring new operating procedures and operational difficulties

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