High-precision pneumatic proportional-integral regulator
A pneumatic proportional and regulator technology, applied in the direction of gas/liquid distribution and storage, pipeline system, mechanical equipment, etc., can solve the problems of stagnation in the development of pneumatic instruments, and achieve the effect of compact structure and reasonable design
Pending Publication Date: 2020-11-10
YINCHUAN INAUTO AUTOMATION
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Problems solved by technology
[0002] Pneumatic instruments are a large category of automated instruments. Our country began to import them from abroad in the 1950s and 1960s and gradually applied them in industrial process control. By the 1970s and 1980s, they had developed to a certain extent. It has achieved unprecedented development and application, replacing pneumatic instruments in conventional fields, and pneumatic instruments were replaced when they were not fully mature, making the development of pneumatic instruments basically stagnant
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[0028] In order to make the purpose, technical solutions and advantages of the embodiments of the present invention clearer, the technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments It is a part of embodiments of the present invention, but not all embodiments. The components of the embodiments of the invention generally described and illustrated in the figures herein may be arranged and designed in a variety of different configurations.
[0029] Accordingly, the following detailed description of the embodiments of the invention provided in the accompanying drawings is not intended to limit the scope of the claimed invention, but merely represents selected embodiments of the invention. Based on the embodiments of the present invention, all other embodiments obtained by persons of ordinary skill in the art wi...
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A high-precision pneumatic proportional-integral regulator comprises a gas circuit assembly, a proportional unit, a throttling unit, an integral unit, an amplifier, a switch valve, a conversion unit and a blocking plate, wherein the proportional unit, the throttling unit, the integral unit, the amplifier, the switch valve, the conversion unit and the blocking plate are mounted on the gas circuit assembly in a surface mounting manner, an internal gas path of the gas circuit assembly communicates with the proportional unit, the throttling unit, the integral unit, the amplifier and the conversionunit, the proportional unit communicates with the amplifier, and the amplifier communicates with the integral unit. All the functional units of the high-precision pneumatic proportional-integral regulator are mounted on the gas circuit integrated assembly in the surface mounting manner, communication among all the functional units is achieved through the internal gas path of the gas circuit integrated assembly, design is reasonable, and the structure is compact. In addition, through two-time signal amplification and feedback of the proportional unit and the amplifier and participation of thecone-cone throttling type integral unit, high-precision control over the pneumatic regulator is realized.
Description
Technical field: [0001] The invention relates to the technical field of pneumatic instruments in automatic control instruments, in particular to a high-precision pneumatic proportional-integral regulator. Background technique: [0002] Pneumatic instruments are a large category of automated instruments. Our country began to import them from abroad in the 1950s and 1960s and gradually applied them in industrial process control. By the 1970s and 1980s, they had developed to a certain extent. It has been developed and applied unprecedentedly, and replaced pneumatic instruments in conventional fields. Pneumatic instruments were replaced when they were not fully mature, making the development of pneumatic instruments basically stagnant. [0003] However, with the development of industrial production, especially in the past ten years, the fireproof and explosion-proof features of pneumatic instruments have inherent advantages in emerging industries such as deep water, shield tunne...
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IPC IPC(8): F17D1/04F17D3/01
CPCF17D1/04F17D3/01
Inventor 丁新旗温红艳马有洪童欢
Owner YINCHUAN INAUTO AUTOMATION