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Protection device of cooling pipeline for high temperature gas delivery and gasification system using same

A technology for cooling pipelines and high-temperature gases, which is applied in the manufacture of combustible gases, granular/powdered fuel gasification, and the petroleum industry. It can solve problems such as damage to chilling devices, failure to detect double walls in time, and loss of coolant.

Active Publication Date: 2018-06-05
CHOREN INDTECHN
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  • Abstract
  • Description
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  • Application Information

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Problems solved by technology

[0022] The disadvantage of this simple solution is that there is a continuous flow of untreated syngas into the external space and into the downstream syngas treatment unit
[0023] Another disadvantage of this solution is that the loss of coolant due to the failure of the double wall cannot be detected in time and can lead to serious damage to the chiller

Method used

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  • Protection device of cooling pipeline for high temperature gas delivery and gasification system using same
  • Protection device of cooling pipeline for high temperature gas delivery and gasification system using same

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Embodiment Construction

[0048] according to figure 1 , the protection device has an internal cooling downcomer 1, which is used for the high-temperature gas transportation of the downcomer quenching device, and is arranged concentrically with the vertical axis of the quenching device.

[0049] According to the intended use, the downcomer 1 has a top high-temperature gas inlet 3 and a bottom high-temperature gas outlet 4 . The inner space of the downcomer 1 is limited by the previous components, and high-temperature gas flows inside, which is defined as a high-temperature gas space 12 .

[0050] The space between the downcomer 1 and the pressurized outer wall 2 of the downcomer cooling device is defined as an external space 13 .

[0051] The downcomer chiller belongs to, for example, a coal gasification reactor designed as an entrained-flow gasifier, which produces synthesis gas from pulverized coal at high temperature and high pressure. The synthesis gas outlet of the gasification reactor is connecte...

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Abstract

The invention provides a protection device of a cooling pipeline for delivering high temperature gas pressure containers. The invention aims to provide an improvement scheme for a protection device ofa high temperature gas cooling pipeline. For example, in a down pipe chiller, the shortages of the prior art are overcome, in particular, in normal operation, the hot gas space in the pipeline and the gas side of the gas pipeline are separated, and in abnormal operation conditions, the balance of air pressure is guaranteed. In order to realize the technical scheme, the upper cooling water, whichflows back from the high temperature gas pipeline is connected to a cooling water outlet and enters a high temperature gas space from a lower part of the pipeline, and a buffer tank is arranged in anexternal space, which is between the reflux opening of the cooling water and the cooling water outlet and is higher than the cooling water reflux.

Description

technical field [0001] The invention relates to a protection device for a cooling pipe used for high-temperature gas delivery in a pressure vessel. The invention also relates to a gasification plant, which comprises an entrained bed gasifier and an auxiliary chilling device with such a protection device. Background technique [0002] In chemical process technology, chilling is used to rapidly cool reaction mixtures to further suppress unwanted by-products. [0003] One such application of the chiller is the rapid cooling of synthesis gas from the gasification of carbonaceous materials, a mixture of carbon monoxide and hydrogen, which can be used as an intermediate in the production of a variety of chemical end products. [0004] In order to generate synthesis gas, it needs to be carried out at high temperature (1200-1900°C) and certain pressure (4-8MPa). Slow cooling can produce undesired side reactions that reduce the production of the desired synthesis gas. [0005] In ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C10J3/48C10J3/82C10J3/84
CPCC10J3/485C10J3/82C10J3/84C10J3/723C10J3/76C10J3/845
Inventor 埃伯哈德·库斯克玛利亚·莫施亨利·亨佩尔曼努埃尔·科德斯
Owner CHOREN INDTECHN
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