Interlock logic protection method of compressor units in the process of preparing acetylene from natural gas

A technology of interlocking logic and compressors, which is applied in the direction of electrical program control, program control, and comprehensive factory control, etc., can solve problems such as interlocking and parking of reaction furnaces, reduce operation safety risks, improve operation quality, and prevent abnormalities in reaction furnaces. The effect of planned parking

Active Publication Date: 2021-08-17
重庆金维实业有限责任公司
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  • Abstract
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  • Application Information

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Problems solved by technology

[0003] The purpose of the present invention is to solve the technical problem in the prior art that the planned and artificial execution of the compressor action will cause a reaction furnace interlock shutdown

Method used

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  • Interlock logic protection method of compressor units in the process of preparing acetylene from natural gas
  • Interlock logic protection method of compressor units in the process of preparing acetylene from natural gas
  • Interlock logic protection method of compressor units in the process of preparing acetylene from natural gas

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Embodiment Construction

[0025] In order to make the purpose, technical solutions and advantages of the application clearer, the application will be further described in detail in conjunction with the accompanying drawings and specific embodiments below. The schematic embodiments of the application and their descriptions are used to explain the application and do not constitute Undue limitation of this application.

[0026] This embodiment provides an interlock logic protection method for compressor units in the process of preparing acetylene from natural gas. The method improves the logic operation on the existing ESD emergency shutdown system and DCS control system, and specifically includes the following steps:

[0027] S1. Add operation buttons in the DCS control system. like figure 2 As shown, add an operation button under the switchdef subdirectory under the SWITCH directory in the DSC control system, and set this operation button on the interface of the DSC control system, as shown in image...

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Abstract

The invention discloses an interlock logic protection method for a compressor unit in the process of preparing acetylene from natural gas, which includes adding an operation button to a DCS control system; the action of the operation button is communicated to an ESD emergency shutdown system through the DCS control system ; In the logic configuration of the ESD emergency shutdown system, it participates in the interlock logic operation of the compressor unit according to the action conditions communicated by the DCS control system to control whether to cut off the interlock bypass of the compressor to the reactor interlock. The present invention modifies the logical operation of the ESD emergency shutdown system by adding operation buttons, thereby selectively controlling the interlocking state of the compressor unit to the reaction furnace, so as to reduce the interlocking state of the compressor unit to the reaction furnace due to state transitions. economic loss.

Description

technical field [0001] The invention relates to the technical field of acetylene preparation process links, in particular to an interlock logic protection method for compressor units in the acetylene preparation process from natural gas. Background technique [0002] In the process of producing acetylene from natural gas, it is equipped with two compressors corresponding to four reaction furnaces. In the interlocking logic, when each reactor is in operation and two compressors are running at the same time, if any compressor stops or load shedding, one reactor will be interlocked and shut down. However, the enrichment device except the compressor and the reaction furnace has interconnected the reaction gas, and the connection of each reaction gas main pipe makes the production load of the acetylene device reach a relative balance. When the reactors are running at the same time, there are several ways to match the operation modes of the two compressors of the device, and ther...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G05B19/418
CPCG05B19/4184Y02P90/02
Inventor 杨高华潘艳艳
Owner 重庆金维实业有限责任公司
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