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Apparatus and method for mechanically reducing internal pressure of column in refinery or petrochemical process

A mechanical method and technology of process towers, which are applied in the direction of valve operation/release devices, valve devices, mechanical equipment, etc., can solve the problems that the reliability cannot reach the safety valve reliability, and the SIS emission effect is reduced.

Inactive Publication Date: 2010-11-17
PIELDS ENG
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

Thus, the emission reduction effect of using SIS is reduced
This is because the shut-off valve is controlled using an electrical signal, which undesirably causes problems in which the reliability of the SIS cannot reach that of a safety valve using a mechanical signal

Method used

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  • Apparatus and method for mechanically reducing internal pressure of column in refinery or petrochemical process

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Embodiment Construction

[0036] Hereinafter, referring to the accompanying drawings, a detailed description will be given of an embodiment of the present invention.

[0037] In addition, the terms and words used in this specification and claims should not be construed as limited to typical meanings or dictionary definitions, but should be construed as having meanings and concepts related to the technical scope of the present invention based on such laws , so that the inventors can properly define the concepts implied by the terms according to such rules, so as to best describe the methods understood by the skilled person to implement the present invention.

[0038] The present invention provides a device that closes the emergency shut-off valve to block the heat source supply to the reboiler when the internal pressure in the process column reaches a predetermined level, which uses a safety relay valve with a simple structure and high reliability to replace the traditional SIS.

[0039] Figure 2A and ...

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Abstract

Disclosed is an apparatus and method for mechanically reducing internal pressure of a column in a refinery or petrochemical process, which uses a safety relay valve for operating an emergency shutdown valve able to mechanically block the supply of a heat source in the process, thus reducing the mounting cost, simplifying the process and ensuring high reliability thanks to the use of mechanical signals.

Description

[0001] Cross-references to related applications [0002] This application claims the benefit of priority to Korean Patent Application No. 10-2009-0041666, filed May 13, 2009, entitled "Mechanical Apparatus and Method for Reducing Pressure in a Process Tower During an Oil Refining or Petrochemical Process", This application is incorporated by reference in its entirety. technical field [0003] The invention relates to a device and a method for mechanically reducing the internal pressure in a process tower during oil refining or petrochemical processes. More specifically, the present invention relates to an apparatus and method for mechanically reducing the internal pressure in a process tower during an oil refining or petrochemical process, wherein, when the internal pressure in the process tower increases or exceeds a predetermined level, the supply of the heat source is blocked, resulting in Therefore, the internal pressure in the process column is maintained at or below a ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): F16K13/00F16K11/065F16K31/12F16K17/02
CPCF16K17/04Y10T137/0396Y10T137/2496Y10T137/7723Y10T137/7734Y10T137/7754C10G7/12F16K31/12F16K31/34
Inventor 罗张勋
Owner PIELDS ENG
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