Intelligent compressed air flow control device

A flow control device, compressed air technology, applied in the direction of flow control using electrical devices, etc.

Inactive Publication Date: 2012-02-22
SHANGHAI ENERGY SAVING TECH SERVICE
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  • Abstract
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  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] According to the survey, the air supply pressure of most compressed air systems is higher than the demand pressure of the equipment, and there is a certain gap. In order to ensure the normal operation of the air-consuming equipment, the power department has left a certain margin on the air supply pressure At the same time, with the change of gas consumption, the gas supply pressure of the system will also change, and it is necessary to increase the gas supply pressure to prevent the gas supply pressure from being too low when the flow rate is large, which will affect the use of gas equipment

Method used

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Embodiment Construction

[0024] see figure 1 , the invention discloses an intelligent compressed air flow control device. As shown in the figure: it includes an intelligent controller C0, an upstream pressure sensor PS1, a downstream pressure sensor PS2, a valve positioner P01, a pneumatic operating mechanism E1 and a linear pneumatic control valve V1; the intelligent controller respectively receives the upstream pressure sensor and The downstream pressure sensor signal, and the upstream pressure signal is used as the basis for pressure display and fault judgment, the downstream pressure signal is compared with the given target pressure signal, and an appropriate pressure signal is output according to the comparison result to control the valve positioner, and further through the pneumatic operating mechanism Control the opening of the linear pneumatic regulating valve until the downstream pressure is equal to the given target pressure. The given target pressure is set on site (the setting is realized ...

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PUM

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Abstract

The invention relates to the field of energy conservation and emission reduction of an air supply system, in particular to an intelligent compressed air flow control device. The device comprises an intelligent control instrument, an upstream pressure sensor, a downstream pressure sensor, a valve positioner, a pneumatic operation mechanism and a linear pneumatic regulating valve, wherein the intelligent control instrument receives signals from the upstream pressure sensor and the downstream pressure sensor, takes an upstream pressure signal as a pressure display and fault judgment basis, compares a downstream pressure signal with a given target pressure signal, and outputs an appropriate pressure signal according to a comparison result to control the valve positioner, and the pneumatic operation mechanism further controls the opening of the linear pneumatic regulating valve until given pressure is equal to downstream pressure, wherein the given target pressure is set on site. The device is used for realizing intelligent air supply flow control and fault judgment and alarm, and has a good energy-saving effect.

Description

technical field [0001] The invention relates to the field of energy saving and emission reduction of an air supply system, in particular to an intelligent compressed air flow control device. Background technique [0002] Compressed air experts at home and abroad suggest that the air supply equipment should be provided with the required air supply pressure. Any air supply pressure higher than the equipment required will cause a waste of air volume. They waste the air volume caused by the pressure difference higher than the actual pressure. , defined as false gas consumption. [0003] According to the survey, the air supply pressure of most compressed air systems is higher than the demand pressure of the equipment, and there is a certain gap. In order to ensure the normal operation of the air-consuming equipment, the power department has left a certain margin on the air supply pressure , At the same time, with the change of gas consumption, the gas supply pressure of the syst...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G05D7/06
Inventor 汪国兴叶文彪张铁成秦宏波俞增盛丁永青余克明宋丹丹向勇涛张浩王敦中谢立侯震寰
Owner SHANGHAI ENERGY SAVING TECH SERVICE
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