Mass method/standard meter method micro-flow water flow standard device

A standard table method and standard device technology, applied in testing/calibration devices, measuring devices, liquid/fluid solid measurement, etc., can solve problems such as measurement accuracy and repeatability, and achieve relative standard uncertainty, Simple structure, improved accuracy and anti-interference degree

Active Publication Date: 2015-04-01
丹东科泰仪器仪表有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, the existing water flow standard devices have problems in measurement accuracy and repeatability

Method used

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  • Mass method/standard meter method micro-flow water flow standard device
  • Mass method/standard meter method micro-flow water flow standard device
  • Mass method/standard meter method micro-flow water flow standard device

Examples

Experimental program
Comparison scheme
Effect test

Embodiment

[0027] Such as Figure 1~3 As shown, a quality method / standard meter method micro-flow water flow standard device, the device includes a water storage tank 1, a surge tank 7, a high-level water tank 8, a horizontal pipeline for the flowmeter to be tested, and a vertical flowmeter for testing pipeline, wherein the water outlet of the water storage tank 1 is connected to a water pump 4 through the on-off valve 2 and the filter 3, the connection of the water pump adopts a coiled joint 20, and the water pump 4 is connected to the lower end of the pressure-stabilizing tank 7 through the check valve 5 to stabilize the pressure The tank 7 forms a circuit with the water storage tank through a pressure relief pipe 19. The pressure relief pipe 19 is provided with an electric on-off valve 9. The high-level water tank 8 is set 5m above the pipeline where the flowmeter to be tested is placed. The water inlet pipe of the high-level water tank 8 passes through an electric on-off valve. Conne...

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PUM

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Abstract

The invention relates to a mass method/standard meter method micro-flow water flow standard device. The device comprises a water storage tank which is connected with the lower end of a surge tank through a water pump, a high-level water tank is connected with the surge tank, the surge tank and the high-level water tank are connected with a front detected-meter header of a horizontal detected-flow-meter placement pipeline through electric switching valves respectively, the front detected-meter header is connected with two horizontal expansion joints in parallel, detected flow meters with different calibers are installed through the horizontal expansion joints, the two horizontal expansion joints gather on a front standard meter header, three standard meters with different calibers are installed at the outlet of the front standard meter header and connected to a rear standard meter header, two vertical detected-flow-meter placement pipelines are connected through the rear standard meter header, detected flow meters can be installed on the vertical detected-flow-meter placement pipelines through vertical expansion joints, three redirectors with different calibers are arranged at the tail ends of the two vertical detected-flow-meter placement pipelines in a connected mode, and one water outlet of each redirector corresponds to a weighing container.

Description

technical field [0001] The invention belongs to the field of liquid flow meter verification, and in particular relates to a standard device for micro-flow water flow by the quality method / standard meter method. Background technique [0002] The basic components of existing water flow standard devices include water circulation system (pool, water pump, pressure-stabilizing container or water tower), degassing filter, experimental pipeline, expander, standard meter or mass weighing system, commutator, start-stop Control equipment and computer composition. Install the tested flow meter on the device as required, start the above system, make the water flow through the tested flow meter and the flow working standard (electronic scale or standard meter), operate the tested flow meter and the flow working standard synchronously, and compare the performance of the two The output flow value, the stability of the water circulation system, and the accuracy of the commutator can determ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G01F25/00
Inventor 孟涛王锡刚李家乐费明辉王义非丁月臣郑海川赵悦辉
Owner 丹东科泰仪器仪表有限公司
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