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Multiport valve

A technology of multi-way valve and valve body, applied in the field of multi-way valves

Active Publication Date: 2020-12-29
MOGAS IND
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0008] Applicants herein implemented by providing a multi-way valve with a sealed half-trunnion arrangement for supporting a spherical flow control element (sometimes referred to hereinafter as a ball) The example solves many of the problems associated with prior art coker switching valves, or CSVs

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment

[0077] Accordingly, the invention described herein provides the following embodiments:

[0078] 1. A multi-port valve comprising:

[0079] a valve body comprising a flow path between a valve body inlet coaxial with a first axis and a plurality of valve body outlets each oriented at an angle transverse to said first axis;

[0080] a spherical flow control element disposed within the cavity;

[0081] wherein the flow control element comprises a ball inlet having a ball inlet area radially disposed about the first axis and a ball outlet having a ball outlet area larger than the ball inlet area, the ball outlets are radially disposed at said transverse angle relative to said first axis about which said flow control element is rotatable to selectively align said ball outlet with one of said plurality of valve body outlets aligning each valve body outlet individually with the ball outlet partially overlapping two of the valve body outlets; and

[0082] Wherein the valve body outl...

example

[0156] according to Figure 1-19, a 30 cm, 41.4 bar (12" 600#) delayed coker switching valve was constructed and tested extensively to validate the valve design features and concepts described herein. Ratio of Ball Outlet Orifice Diameter 38 to Ball Inlet Orifice Diameter 40 is 1.3.

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Abstract

Disclosed is a multiport valve with outlets transverse to the inlet useful as a coker switch valve. A sealed lower sleeve assembly provides semi-trunnion ball support. An upper part of the outlet seatrecesses is formed in the bonnet, and a lower part in the valve body, which together bias a resilient member to load the seats, independently of end connections. Before bonnet assembly, when the ballis rotated to face a body outlet, there is sufficient space in the seat recesses to insert the seat, slide the seat onto the ball, and then insert the resilient member. When all the seats and resilient members are in place, engagement of the bonnet biases the upper part of the resilient members to load the seat. In valve operation, an enlarged ball outlet bore can straddle two outlet ports and maintain process media flow during switching. Also, methods of assembling, operating, and servicing the valve.

Description

[0001] Cross References to Related Applications [0002] This application claims the benefit and priority of U.S. Provisional Application Serial No. 62 / 673,581 and U.S. Provisional Application Serial No. 62 / 673,703, both filed May 18, 2018, the disclosures of which are incorporated herein by reference in their entirety . Background technique [0003] A coker switching valve (CSV) is commonly used to divert the flow of heavy oil from one coke drum to another. Typical temperatures of the process stream exceed 200°C, and sometimes as high as 500°C, with typical times between coke drum switches of 16 hours to 24 hours. When held at these temperatures for several hours, heavy oils will turn into coke. If heavy oil gets into the valve cavity or seat and forms coke there, the CSV can become stuck. In addition, switching CSVs during production causes a brief disruption in process flow, typically by 40%. Transient flow restrictions can lead to hot spots, coke deposits, fouling, et...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): F16K11/087F16K5/06F16K5/20F16K11/00F16K11/20F16K27/06
CPCC10B55/00E21B7/28F16K11/0876F16K27/067F16K5/0689F16K5/0636C10B31/12F16K5/0605F16K5/0663F16K11/056F16K11/087
Inventor 阿尔弗雷德·刘易斯·安德森阿斯马·萨德克·卡萨卜飞利浦·M·英曼
Owner MOGAS IND
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