Pulse width modulation gas-based depressurizing method and device

A pulse width modulation, gas technology, applied in the direction of electric fluid pressure control, etc., can solve the problems of narrow pressure regulation range and poor pressure maintenance accuracy, and achieve the effect of large adaptation range and high sensitivity

Inactive Publication Date: 2016-03-30
苟仲武
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Problems solved by technology

There is a narrow range of pressure regulation, poor pressu

Method used

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  • Pulse width modulation gas-based depressurizing method and device

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Embodiment Construction

[0010] refer to figure 1 , the specific embodiment adopts the following technical solutions: a device for pulse width modulation gas decompression, including a high-pressure gas pipe 1, an electric control gas valve 2, a gas storage tank 3, a low-pressure gas pipe 4, a pressure sensor 5 and an electric controller 7, The top of the gas storage tank 3 is provided with a pressure sensor 5, the pressure sensor 5 transmits the pressure sensing signal 6 to the electric controller 7, and the electric controller 7 transmits the valve opening signal 8 to the electric control gas valve 2, and the high pressure gas pipe 1 passes the electric control Air valve 2 links to each other with gas storage tank 3, and gas storage tank 3 also links to each other with low-pressure air pipe 4.

[0011] A method for depressurizing gas with pulse width modulation, which includes the following steps: transporting high-pressure gas (0.1-60MPa) from a high-pressure gas pipe to the electric control gas va...

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Abstract

The invention discloses a pulse width modulation gas-based depressurizing method and device. The pulse width modulation gas-based depressurizing device includes a high-pressure gas pipe, an electric control air valve, a gas storage tank, a low-pressure gas pipe, a pressure sensor and an electric control device; the top of the gas storage tank is provided with the pressure sensor; the pressure sensor transmits pressure sensing signals to the electric control device; the electric control device transmits valve-opening signals to the electric control air valve; the high-pressure gas pipe is connected with the gas storage tank through the electric control air valve; and the gas storage tank is also connected with the low-pressure gas pipe. According to the pulse width modulation gas-based depressurizing method and device of the invention, a digital electric control technology is adopted to measure output pressure; and PWM is adopted to control the on-off of the high-pressure gas valve. The pulse width modulation gas-based depressurizing method and device have the advantages of high sensitivity, wide adaptation range, flexible pressure setting and small fluctuation range. With the method and device adopted, a fluctuation range is within than 3%.

Description

technical field [0001] The invention relates to the technical field of decompression, in particular to a method and device for pulse width modulation gas decompression. Background technique [0002] The gas pressure reducer belongs to the mechanical opening and closing. It depends on the pressure difference between the air inlet and the air outlet to reach a certain value to open and close the internal regulating valve to work. Each type of pressure reducer can only be suitable for a certain pressure range. There is a narrow range of pressure regulation, poor pressure maintenance accuracy, and fluctuations of more than 10%. However, in actual industrial production, a pressure reducing device with higher precision for controlling pressure is required, and the adjustment speed can be increased. Contents of the invention [0003] In view of the above-mentioned defects of the prior art, the present invention provides a method and device for pulse-width modulation gas decompre...

Claims

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Application Information

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IPC IPC(8): G05D16/20
CPCG05D16/20
Inventor 苟仲武
Owner 苟仲武
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