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Method and apparatus for exchanging nozzle on line

A nozzle, assembly and disassembly technology, applied in the field of nozzle replacement, can solve problems such as furnace brick damage, and achieve the effects of extending service life, increasing effective gas content and output

Inactive Publication Date: 2009-02-25
刘清林
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0007] In order to overcome the technical defects of existing nozzles and the disadvantages of damage to furnace bricks during nozzle replacement

Method used

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  • Method and apparatus for exchanging nozzle on line
  • Method and apparatus for exchanging nozzle on line
  • Method and apparatus for exchanging nozzle on line

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Experimental program
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Embodiment Construction

[0072] The present invention will be further described below in conjunction with the accompanying drawings and embodiments.

[0073] figure 1 It is a three-dimensional schematic diagram of the main body of the nozzle online replacement device with the outer shell cut off.

[0074] figure 2 It is a schematic diagram of the main mechanism of a specific embodiment of the online nozzle replacement device.

[0075] image 3 yes figure 2 The A-A sectional view of the figure shows the connection position diagram of each telescopic pipe flange and the rear flange of the nozzle driving oil cylinder and the rotary shell of the feed switcher.

[0076] Figure 4 yes figure 2 The B-B sectional view shows the eccentric position of the transition pressure tank and the furnace mouth and the mutual position diagram between the two nozzles.

[0077] Figure 5 yes figure 2 The C-C sectional view of the figure shows the schematic diagram of the clamp type quick assembly and disassemb...

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Abstract

The invention discloses a nozzle on-line replacement method and a replacement device thereof. The invention is characterized that an excessive pressure tank (3) is arranged on the flange of a furnace mouth (23); the excessive pressure tank is provided with an in-service nozzle (5) and a waiting-for-service nozzle (18); and the in-service nozzle (5) and the waiting-for-service nozzle (18) are arranged in the excessive pressure tank (3) and no pressure difference exists between the furnace and the tank. Through the effect of the driving mechanism in the replacement device and the off-on switch of a quickly assembling and disassembling sealed connection module (1), the on-line replacement of the in-service nozzle (5) and the waiting-for-service nozzle (18) can be completed. The invention has the advantages that the invention can carry on the nozzle on-line replacement without stopping the use of the furnace, and without replacement, drawing and warm-up heating; can prevent furnace blocks from suffering the damages caused by rapid cooling and heating, thereby extending the service life of the furnace blocks; can conduct the replacement before the worsening of the nozzle gasification index, thereby ensuring that the nozzle performance index always run under good conditions; and can ensure the gasification furnace achieves long-term smooth running, thereby reducing the cost caused by replacement of nozzles and furnace blocks and avoiding the loss of off production.

Description

technical field [0001] The invention relates to a nozzle replacement method, more specifically to an online nozzle replacement method and a replacement device for gasifying hydrocarbon-containing materials such as coal-water slurry, pulverized coal, residual oil, and petroleum coke. Background technique [0002] Texaco coal-water slurry gasification plant is safe and reliable from raw material preparation and transportation, low coal consumption, oxygen consumption and electricity consumption, convenient to start and stop, low investment cost, high localization rate, short construction period, and isobaric synthesis It has obvious advantages in many aspects, such as less discharge of three wastes and low license fee, but there are congenital technical defects. The gasification nozzle is easily damaged, the nozzle operation period is short, and the cost of furnace brick replacement and maintenance is high. [0003] Existing Texaco coal-water slurry process nozzles, including ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): F23D11/38
Inventor 刘清林刘欣
Owner 刘清林
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