Constant pressure discharge system

A discharge system and regulating valve technology, which is applied in the pipeline system, mechanical equipment, gas/liquid distribution and storage, etc., can solve the problems of instrument analysis results fluctuation, instrument gas cannot be discharged, and affect instrument analysis, etc., to achieve simple structure and high pressure The effect of stabilizing and reducing the amount of supplementary air

Pending Publication Date: 2019-06-14
苏州祖宁自动化仪器仪表有限公司
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Problems solved by technology

However, the air pressure in the torch or the low-pressure pipeline is higher than the atmospheric pressure, which will cause the back pressure of the instrument to be too high, which will affect the analysis of the instrument and make the results distorted; if the back pressure is too high, the gas in the instrument will not be discharged; in addition, Regardless of whether it is the flare or the low-pressure pipeline, the air pressure is unstable, which makes the analysis results of the instrument fluctuate

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  • Constant pressure discharge system

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Embodiment

[0023] refer to figure 1 As shown, the present invention discloses a constant pressure discharge system, which includes a driving air port, a regulating valve 1 2, a regulating valve 2 3, a Venturi tube 6, a discharge outlet and a pressure relief outlet.

[0024] The driving gas port, the regulating valve 2 3 , the Venturi tube 6 and the discharge outlet are connected in sequence. The driving gas port is connected to the high-pressure driving gas source. The regulating valve 2 3 is connected with the discharge outlet signal for collecting the air pressure at the discharge outlet. The outlet of the meter is connected to the throat of the Venturi tube 6 . One end of the regulating valve one 2 is communicated between the driving gas port and the regulating valve two 3 , and the other end is communicated between the instrument outlet and the throat of the Venturi tube 6 . Regulating valve 1 and 2 are connected to the meter outlet signal, and are used to collect the air pressure...

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Abstract

The invention discloses a constant pressure discharge system. The constant pressure discharge system comprises a driving air port, a first adjusting valve, a second adjusting valve, a Venturi tube, adischarge outlet and an instrument outlet; the driving air port, the second adjusting valve, the Venturi tube and the discharge outlet sequentially communicate, the driving air port communicates withan air source of high-pressure driving air, the second adjusting valve is in signal connection with the discharge outlet, the instrument outlet communicates with a throat tube of the Venturi tube, oneend of the first adjusting valve is arranged between the driving air port and the second adjusting valve in a communication manner, the other end of the first adjusting valve is arranged between theinstrument outlet and the throat tube of the Venturi tube in a communication manner, and the first adjusting valve is in signal connection with the instrument outlet. Backpressure of an instrument canbe stabilized within the preset numerical value, the measuring accuracy is greatly improved, the structure is simple, and the use is convenient.

Description

technical field [0001] The invention relates to a constant pressure system, in particular to a constant pressure discharge system. Background technique [0002] In the instrument online analysis industry, the outlet of the instrument needs to be connected to the atmosphere to maintain the stability of the back pressure. With the increasingly stringent environmental protection, the outlet of the instrument is not allowed to discharge the atmosphere, but can only be discharged into the flare or low-pressure pipeline. However, the air pressure in the torch or the low-pressure pipeline is higher than the atmospheric pressure, which will cause the back pressure of the instrument to be too high, which will affect the analysis of the instrument and make the results distorted; if the back pressure is too high, the gas in the instrument will not be discharged; in addition, Regardless of whether it is a flare or a low-pressure pipeline, the air pressure is unstable, which makes the a...

Claims

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Application Information

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IPC IPC(8): F17D1/02F17D3/01
Inventor 钱宁杨荻管晓君富小青胡俊祖何定君王宜昊
Owner 苏州祖宁自动化仪器仪表有限公司
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