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Fluid closed loop flow control system

A flow control and fluid technology, which is applied in the field of fluid closed-loop flow control system, can solve the problems of fluid flow control system defects, flow measurement control mode, etc., and achieve the effects of perfect spraying operation, overcoming wear and improving efficiency

Inactive Publication Date: 2015-12-23
SHENZHEN TAIDA ROBOT CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] The purpose of the present invention is to provide a fluid closed-loop flow control system, which aims to solve the defects of the existing fluid flow control system and the flow measurement control method

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0022] Such as figure 1 , figure 2 As shown, the fluid closed-loop flow control system includes an electrical control system 1, a fluid flow meter 2, a flow regulation module 4, a spray tool 5, a fluid delivery pipeline 6, a fluid delivery pipeline 12, a flow delivery pipe 13, and a fluid one-way valve 15 And fluid conveying system 14 etc.;

[0023] Such as figure 1 , figure 2 As shown, the fluid material is transported by the fluid delivery system 14 to the fluid check valve 15 to flow to the flowmeter 2, and then delivered to the flow regulation module 4 through the fluid delivery pipeline 12, and the fluid material passing through the flow regulation module is delivered through the fluid delivery pipeline 13 to sprayer;

[0024] Such as figure 1 As shown, the fluid material enters the flow meter 2 through the fluid delivery pipeline 6 and the fluid check valve 15, the flow meter 2 detects the fluid flow in the fluid pipeline, and transmits the actual flow data to the...

Embodiment 2

[0029] Such as figure 1 , figure 2 As shown, when the fluid closed-loop flow control system enters the spraying work, the fluid material is transported to the flow meter 2 through the fluid delivery system 1, and then transported to the flow adjustment module 4 through the flow meter 2, and the adjusted fluid material is transported to the spray tool 5 Entering the spraying operation, the flow meter 2 detects the flow rate of the fluid material from time to time, and transmits the actual detected flow data to the electrical control system 1, and the fluid pressure transmitter 7 detects the fluid pressure between the flow adjustment module 4 and the spray tool 5, And transmit the actual detected fluid pressure data to the electrical control system 1, the electrical control system 1 performs proportional calculation with the flow value set by the system according to the flow detection data and pressure detection data, and outputs the control analog signal to control the electri...

Embodiment 3

[0032] Such as figure 1 , figure 2 As shown, the fluid closed-loop flow control system is composed of an electrical control system 1, a flow meter 2, a flow regulation module 4, a spray tool 5 and a fluid delivery pipeline, and its flow regulation module includes a fluid pressure regulator valve 3 and an electrical proportional valve 8 , fluid pressure transmitter 7 and other components, the use site, the electrical control system 1, flow meter 2, flow adjustment module 4 and the spray tool are installed separately, the electrical control system 1 is installed in the safe area of ​​the accessories used by the equipment, and the flow meter 2 Installed at a suitable place where the equipment is used without vibration, the flow regulating module 4 is installed near the spray tool of the automatic spraying equipment, and connected by cables or fluid delivery pipelines in the middle.

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Abstract

The invention discloses a fluid closed loop flow control system. The fluid closed loop flow control system comprises a fluid conveying system, a fluid flowmeter, a fluid flow adjusting module, a spraying tool and a control system; the fluid conveying system, the fluid flowmeter, the fluid flow adjusting module and the spraying tool are connected together through a fluid pipe, fluid is conveyed to the fluid flowmeter from the fluid conveying system, passes through an outlet of the fluid flowmeter to be conveyed to the fluid flow adjusting module, and is then conveyed to the spraying tool; a fluid material is conveyed to the inlet end of the fluid flowmeter through the fluid conveying system, a fluid one-way valve is arranged at the inlet end of the fluid flowmeter, the fluid material enters the fluid flowmeter through the fluid one-way valve, and the fluid one-way valve is used for preventing large fluid pulses from influencing the metering accuracy of the fluid flowmeter; and the fluid one-way valve supplies one-way stable fluid flow to the fluid flowmeter, the fluid material is conveyed to the flow adjusting module from the fluid flowmeter, and detected fluid flow data detected by the fluid flowmeter are conveyed to the control system. According to the fluid closed loop flow control system, two modes including the flow closed loop and the pressure closed loop are adopted, the accurate flow control is guaranteed through the flow closed loop, and rapid responses of flow control are provided through the pressure closed loop; in addition, a Coriolis mass flowmeter is adopted, so that the prior defects of abrasion of a metering cylinder and a gear pump, not thorough washing, large device maintenance working amount are avoided, the efficiency of spraying operation is improved, and the overall spraying operation is more perfect.

Description

technical field [0001] The invention belongs to the industry of paint spraying and gluing, and in particular relates to a fluid closed-loop flow control system. Background technique [0002] In recent years, in the industrial production of paint spraying and gluing, it has shifted from manual operation to automatic spraying operation. Automatic spraying operation involves the process control of fluid flow. Without an accurate and stable fluid flow control system, it is difficult to ensure that the product The surface coating requirements and the waste of paint are caused, and the fluid flow control currently used in the market mainly adopts the following two methods. One is to use a remote paint pressure regulating valve to adjust the paint pressure, thereby changing the flow rate of the nozzle fluid to achieve fluid flow. For flow control, there is no flow detection device in this way, and the fluid pressure and fluid flow are not linear. In production engineering, when the...

Claims

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Application Information

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IPC IPC(8): B05B9/047B05B12/00
CPCB05B9/047B05B12/00
Inventor 陈大立向阳
Owner SHENZHEN TAIDA ROBOT CO LTD
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