Looking for breakthrough ideas for innovation challenges? Try Patsnap Eureka!

Converter surface temperature equalization method

A surface temperature and reforming furnace technology, applied in chemical instruments and methods, inorganic chemistry, non-metallic elements, etc., can solve the problems of negative impact of furnace tube heat conduction, poor stability and reliability, and inconvenient installation, etc., to achieve endothermic catalytic reaction The effects of balancing, prolonging service life, and reducing maintenance costs

Inactive Publication Date: 2015-07-29
SHANGHAI HUALIN IND GASES
View PDF2 Cites 0 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0010] At present, at home and abroad, the balanced optimization of the surface temperature of steam reforming hydrogen production furnace tubes mostly stays in the relatively primitive visual inspection method, and some enterprises adopt the one-sided operation method of local temperature measurement and local adjustment; Individual furnace tubes are pasted with temperature sensing chips on their surface and transmitted to the transmitter for reference display, but the service life of this temperature patch facility is short, and its stability and reliability are poor. In such a long-term operation, the furnace tube is still in a blind tube operation, and the installation of the patch on the surface of the furnace tube also has a local negative impact on the heat conduction of the furnace tube, and the installation is not easy

Method used

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
View more

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0031] On March 7-8, 2011, the steam reforming hydrogen production furnace unit (SMR1 unit for short) of Shanghai Hualin Industrial Gas Co., Ltd. was subjected to a super load test. During this period, the working conditions of the reformer burners were checked and adjusted, especially the surface temperature of the furnace tubes was monitored most closely, and the surface temperatures of all 56 furnace tubes in the furnace were measured in 4 times. By analyzing the data obtained from the measurement, and adjusting the combustion air and low-pressure fuel gas valve opening of the burner 4 times, it is used to ensure that the surface temperature of the 56 furnace tubes does not exceed the design value of 960 ° C, and at the same time promote the surface temperature of the 56 furnace tubes Be as balanced as possible.

[0032] ◆Measure the surface temperature of 56 furnace tubes of SMR1 reformer one by one with infrared high-temperature detector, use OFFICE-EXCEL software and com...

Embodiment 2

[0042] A method for surface temperature equalization of a reformer, the method comprising the following steps:

[0043] (1) Set the combustion-supporting air at the inlet of the burner, the high-pressure fuel intake valve, and the low-pressure fuel intake valve to a fully open state;

[0044] (2) Under the highest load condition of the reformer (that is, to optimize and adjust during the full load or overload test conditions, and to optimize the operation requires a 24-hour stable working condition) to use infrared high-temperature detectors to monitor each The temperature of the furnace tubes is measured one by one. According to the measured data, select the burner in the corresponding area of ​​the high-temperature furnace tube, and reduce the intake air volume of the combustion air valve on the burner; the adjustment range is 5%.

[0045] The infrared high-temperature detector selects the fire observation hole in the cross-section of the high-temperature section of the furn...

Embodiment 3

[0050] A method for surface temperature equalization of a reformer, the method comprising the following steps:

[0051] (1) Set the combustion-supporting air at the inlet of the burner, the high-pressure fuel intake valve, and the low-pressure fuel intake valve to a fully open state;

[0052] (2) Under the highest load condition of the reformer (that is, to optimize and adjust during the full load or overload test conditions, and to optimize the operation requires a 24-hour stable working condition) to use infrared high-temperature detectors to monitor each The temperature of the furnace tubes is measured one by one. According to the measured data, select the burner in the corresponding area of ​​the high-temperature furnace tube, and reduce the intake air volume of the combustion air valve on the burner; the adjustment range is 5%.

[0053] The infrared high-temperature detector selects the fire observation hole in the cross-section of the high-temperature section of the furn...

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

PUM

PropertyMeasurementUnit
reflectanceaaaaaaaaaa
reflectanceaaaaaaaaaa
reflectanceaaaaaaaaaa
Login to View More

Abstract

The invention relates to a converter surface temperature equalization method. The method comprises the following steps: 1, allowing the combustion air valve, high pressure fuel inlet valve and the low pressure fuel inlet valve at the inlet of a combustor to be in fully-open state; 2, measuring the temperatures of all furnace tubes in a converter by an infrared ray high temperature detector one by one, selecting a combustor of a high temperature furnace corresponding area, and turning down the air inflow of the combustion air valve on the combustor; 3, stabilizing combusting for above 2h after the adjustment of the combustion air valve, and repeating step 2; 4, circulating the step 2 and step 3 several times; and 5, turning down the low pressure fuel inlet valve on the combustor if parts of parts of the surface temperatures of the furnace tubes in the converter are high in order to control, and adjusting the operation of the high pressure fuel inlet valve if parts of a small amount of high temperature furnace tubes exist in order to carry out final improvement. Compared with the prior art, the method has the advantages of safety, simplicity, reliability and strong operationality.

Description

technical field [0001] The invention relates to a reformer, in particular to a method for equalizing the surface temperature of the reformer. Background technique [0002] Chemical production enterprises take ensuring the safety, reliability and continuity of the enterprise's equipment as the central goal of enterprise management. This goal is directly related to the life of the enterprise and is the top priority in enterprise management. [0003] The reformer equipment is the core production equipment in the large-scale chemical steam reforming hydrogen production plant. This kind of large-scale steam reformer generally adopts a top-fired negative pressure furnace. Through the reformer tube, relying on the heating method of absorbing the radiant heat of the burner flame to promote the C-H high temperature chain scission and chemical reaction. The structure of the top-fired negative pressure furnace generally adopts burners on the top of the furnace, which are distributed a...

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

Application Information

Patent Timeline
no application Login to View More
Patent Type & Authority Applications(China)
IPC IPC(8): C01B3/22
Inventor 高嵩王乘东谭子龙蔡建培
Owner SHANGHAI HUALIN IND GASES
Who we serve
  • R&D Engineer
  • R&D Manager
  • IP Professional
Why Patsnap Eureka
  • Industry Leading Data Capabilities
  • Powerful AI technology
  • Patent DNA Extraction
Social media
Patsnap Eureka Blog
Learn More
PatSnap group products

Browse by: Latest US Patents, China's latest patents, Technical Efficacy Thesaurus, Application Domain, Technology Topic, Popular Technical Reports.

© 2024 PatSnap. All rights reserved.Legal|Privacy policy|Modern Slavery Act Transparency Statement|Sitemap|About US| Contact US: help@patsnap.com