Unlock instant, AI-driven research and patent intelligence for your innovation.

Control device, flow rate sensitivity correction method, storage medium

A control device and flow technology, applied in the direction of flow control, measuring device, control/regulation system, etc., can solve high cost and complex problems

Active Publication Date: 2021-12-21
株式会社科思莫计器
View PDF20 Cites 0 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0022] The existing leakage flow measurement system needs to be performed every time the type of workpiece 935 changes. image 3 The flow sensitivity correction action, so complex and high cost

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 more

Image

Smart Image Click on the blue labels to locate them in the text.
Viewing Examples
Smart Image
  • Control device, flow rate sensitivity correction method, storage medium
  • Control device, flow rate sensitivity correction method, storage medium
  • Control device, flow rate sensitivity correction method, storage medium

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0042] Below, refer to Figure 4 The configuration of the leakage flow measurement system of the first embodiment will be described. As shown in the figure, the leakage flow measurement system 1 of this embodiment includes: the same air pressure source 905 as the existing leakage flow measurement system 9, an electro-pneumatic converter 910, a first stop valve 915, a tank 920, and a mass flow sensor 925, the second shut-off valve 930, the workpiece 935, the third shut-off valve 940, the pressure sensor 945, the fourth shut-off valve 950, the fifth shut-off valve 955, the flow controller 960, which perform different controls from the existing control device 965 Control device 165. The dotted line in the figure is a control line for transmitting a control signal of the control device 165 .

[0043] Below, refer to Figure 5 The configuration of the control device 165 of this embodiment will be described. As shown in the figure, the control device 165 of this embodiment inclu...

Embodiment 2

[0076] Below, refer to Figure 8The structure of the leakage flow measurement system of the second embodiment will be described. As shown in the figure, the leakage flow measurement system 2 of the present embodiment includes: an air pressure source 805, an oil mist separator 810 located on the workpiece and the tank side and connected to the air pressure source 805 than the air pressure source 805, and a specific oil mist separator. The pressure regulating valve 815 located on the side of the workpiece and the tank and connected to the oil mist separator 810, the test pressure gauge 820 located on the side of the workpiece and the tank more than the pressure regulating valve 815 and connected to the pressure regulating valve 815, and the pressure regulating valve 820 connected to the pressure regulating valve 815 820 is located at the workpiece and the tank side and is connected to the electromagnetic valve 825 of the test pressure gauge 820, and one of the pipelines extendin...

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

No PUM Login to View More

Abstract

The invention provides a control device, a flow sensitivity correction method and a storage medium. The control device includes: controlling the pressure in the tank to the tank pressure P 1 The tank pressure control part of the tank, open the pipeline connecting the tank and the workpiece and measure the workpiece pressure P 2 The workpiece pressure measuring part, according to the tank pressure P 1 and workpiece pressure P 2 and the inner volume of the tank V 1 Find the internal volume x of the workpiece and find the test pressure P of the preset workpiece 2 ’ corresponds to the control pressure P of the tank 1 ’, the control pressure calculation unit sets the tank pressure as the control pressure P 1 ’ and open the pipeline to judge whether the pressure in the workpiece converges to the test pressure P 2 ’ as the center of the predetermined range convergence determination unit, and when the pressure in the workpiece converges to the predetermined range based on the control pressure P 1 ’ and test pressure P 2 A mass flow sensor correction unit that calculates a flow rate correction coefficient K that is a coefficient for correcting a mass flow sensor provided on a pipeline connecting a tank and a workpiece, and corrects the mass flow sensor based on the flow rate correction coefficient K.

Description

technical field [0001] The present invention relates to a control device for correcting the flow sensitivity of a mass flow sensor, a flow sensitivity correction method, and a storage medium. Background technique [0002] As a conventional example of a flow-type leak test system, there is Non-Patent Document 1, for example. refer to figure 1 The configuration of a conventional storage tank type leakage flow measurement system will be described. As shown in the figure, the existing leakage flow measurement system 9 in the form of a storage tank includes: an air pressure source 905, an electro-pneumatic converter 910 connected to the first pipeline connecting the air pressure source 905 and the tank 920, the first Pipelines are openably and closably connected to a first stop valve 915 located on the side of the tank 920 more than the electropneumatic converter 910, the tank 920, a mass flow sensor 925 connected to a second pipeline connecting the tank 920 and the workpiece 9...

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
no application Login to View More
Patent Type & Authority Patents(China)
IPC IPC(8): G01M3/32G01F25/00G05D7/06
CPCG01M3/3254G05D7/0617G01F25/10
Inventor 古瀬昭男古瀬敏充
Owner 株式会社科思莫计器