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Staged steam injection system

A technology of injecting system and steam, which is applied in the direction of combustion type, lighting and heating equipment, incinerator, etc., and can solve problems such as water hammer and knocking

Active Publication Date: 2018-08-31
JOHN ZINK CO LLC
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Subsequent introduction of steam into cold lines can cause knocking or water hammer problems if not enough steam is provided to keep the steam line warm and keep the steam line cool

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment

[0071] tested this article Figure 4B The staged steam injection system shown. As shown, the flare tip 10 includes both standard high flow high pressure (HFHP) steam nozzles and low flow high pressure (LFHP) steam nozzles. When conducting the tests, steam was injected through both HFHP nozzles and LFHP ​​nozzles.

[0072] The first phase of testing involved sending steam at various flow rates to the HFHP nozzles while shutting off the steam flow to the LFHP ​​nozzles. For each flow rate of HFHP steam, the hydrocarbon flow rate to the flare tip was adjusted to the maximum value that would still produce smokeless combustion.

[0073] The second phase of testing involved sending steam at various flow rates to the LFHP ​​nozzles while shutting off the steam flow to the HFHP nozzles. For each flow rate of LFHP ​​steam, the hydrocarbon flow rate to the flare was adjusted to the maximum value that would still produce smokeless combustion.

[0074] Figure 13 Test results are sho...

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PUM

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Abstract

A staged steam injection system for a flare tip that can discharge waste gas into a combustion zone is provided. The staged steam injection system includes, for example, a first gas injection assemblyand a second stage gas injection assembly. The first gas injection assembly is configured to inject steam at a high flow rate and a high pressure into the flare tip or the combustion zone. The secondgas injection assembly is configured to inject a gas (for example, steam and / or a gas other than steam) at a low flow rate and a high pressure into the flare tip or the combustion zone. A flare tip including the staged steam injection system is also provided.

Description

[0001] Cross References to Related Applications [0002] This application claims previously filed U.S. provisional applications 62 / 387,147 (filed December 23, 2015), 62 / 343,342 (filed May 31, 2016), and 62 / 343,362 (filed May 31, 2016) , each of which is incorporated herein by reference. Background technique [0003] Industrial flares for burning and handling flammable gases are well known. Such flares typically include one or more flare tips mounted on a flare tower. The flare tip initiates combustion of the gas and releases the combustion products into the atmosphere. Flares are located at locations such as production, refining, and processing equipment. In many cases, a single facility includes more than one flare. [0004] For example, industrial flares are used to process flammable gases, exhaust gases, and other types of gases (collectively referred to as "exhaust gases") that require disposal. For example, industrial flares are used to safely burn flammable gas str...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): F23G7/08F23L7/00F23L17/16
CPCF23L7/005F23G7/085F23L17/16F23L2900/07009
Inventor W·R·巴斯曼J·C·富兰克林D·L·诺特J·W·怀特
Owner JOHN ZINK CO LLC