New type spraying robot positive pressure explosion-proof system

A spraying robot, positive pressure explosion-proof technology, applied in control/adjustment systems, instruments, non-electric variable control, etc., can solve the problems of controlling the sealed cavity, unable to control the automatic adjustment of the positive pressure of the spraying robot shell, etc., to achieve closed-loop pressure flow Control and reduce the effect of human intervention

Active Publication Date: 2017-04-26
SHENYANG SIASUN ROBOT & AUTOMATION
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] The above technical solution mainly performs explosion-proof protection by adjusting the gas in the sealed cavity. Its shortcoming is that it only controls the positive pressure in the sealed cavity and cannot control the automatic adjustment of the positive pressure inside the shell of the spraying robot.

Method used

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  • New type spraying robot positive pressure explosion-proof system
  • New type spraying robot positive pressure explosion-proof system
  • New type spraying robot positive pressure explosion-proof system

Examples

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Effect test

Embodiment 1

[0026] Such as figure 1 , 2 , 3, 4, and 5, a new type of spraying robot positive pressure explosion-proof system, including a control system 1, a robot body 15, a combustible gas content detection device 23, a first pressure switch 17, a second pressure switch 18, the first two Three-position reversing valve 2, second two-position three-way reversing valve 9, third two-position three-way reversing valve 26, proportional control valve 19 and flow switch 10;

[0027] The control system 1 is electrically connected to the robot body 15, the combustible gas content detection device 23, the first pressure switch 17, the second pressure switch 18, the first two-position three-way reversing valve 2, and the second two-position valve through the control cable 4. Three-way reversing valve 9, third two-position three-way reversing valve 26, proportional control valve 19 and flow switch 10;

[0028] The new spraying robot positive pressure explosion-proof system also includes a manual v...

Embodiment 2

[0035] The pipeline connecting the robot body 15 with the first pressure switch 17 and the second pressure switch 18 is also provided with a third pressure switch, and the first pressure switch 17, the second pressure switch 18 and the third pressure switch all adopt this Safety type pressure switch, all the other structures are identical with embodiment 1;

[0036] Its function is because the pressure switch adopts the intrinsically safe type, and the pressure switch can be directly powered on before the exhaust gas is discharged. In this mode, the pressure switch is powered on, the reversing valve is in the long-pass state, the manual valve is opened, and the gas passes through the pressure reducing valve. , The two-way reversing valve and the speed control valve enter the robot body to supply air to the body. The speed control valve is used to adjust the intake speed. When the pressure value of the pressure switch reaches the set positive pressure value, the control system a...

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Abstract

The invention relates to an explosion-proof system, more particularly, to a new type spraying robot positive pressure explosion-proof system, comprising: a control system, a robot body, a combustible gas content detection device, a first pressure switch, a second pressure switch, a first two-position three-way direction changing valve, a second two-position three-way direction changing valve, a third two-position three-way direction changing valve, a proportion control valve and a flow switch. The control system is electrically connected with the robot body, the combustible gas content detection device, the first pressure switch, the second pressure switch, the first two-position three-way direction changing valve, the second two-position three-way direction changing valve, the third two-position three-way direction changing valve, the proportion control valve and the flow switch through control cables. According to the invention, a proportion valve and a gas controlled three-position five-way direction changing valve are used to realize the positive pressure explosion prevention of a spraying robot. When the spraying robot enters an operation mode and is electrified, the pressure flow closed loop control can be realized so as to reduce the unnecessary manual intervention or alarming and out-of-service of the spraying robot caused by the positive pressure fluctuation in the robot housing.

Description

technical field [0001] The invention relates to an explosion-proof system, in particular to a novel positive-pressure explosion-proof system for a spraying robot. Background technique [0002] The positive pressure explosion-proof system of the existing positive pressure ventilation type spraying robot cannot automatically adjust the flow rate of the ventilation gas at the gas outlet when the internal pressure changes, and can only be adjusted manually through the throttle valve at the front air inlet Intake flow. [0003] Some products have been improved. For example, a Chinese patent discloses a spraying robot explosion-proof device, application number: 201220104506.3, application date: 2012-03-20, including a sealed chamber, a positive pressure and flow pick-up system fixed inside the sealed chamber, located at The air compressor outside the sealed chamber is connected to the pressure reducing valve and the pneumatic conduit at the outlet of the air compressor, connected...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G05D27/02
Inventor 王富刚徐方曲道奎李学威付杰张鹏
Owner SHENYANG SIASUN ROBOT & AUTOMATION
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