CN202989078U - Interlock protection system for preventing gasifier from peroxiding and overheating - Google Patents
Interlock protection system for preventing gasifier from peroxiding and overheating Download PDFInfo
- Publication number
- CN202989078U CN202989078U CN 201220661234 CN201220661234U CN202989078U CN 202989078 U CN202989078 U CN 202989078U CN 201220661234 CN201220661234 CN 201220661234 CN 201220661234 U CN201220661234 U CN 201220661234U CN 202989078 U CN202989078 U CN 202989078U
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- Prior art keywords
- protection system
- interlock
- esd
- interlock protection
- analyser
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- Investigating Or Analyzing Non-Biological Materials By The Use Of Chemical Means (AREA)
Abstract
The utility model discloses an interlock protection system for preventing a gasifier from preoxiding and overheating. The interlock protection system comprises a synthesis gas composition on-line color spectrum analysis meter and an emergency shutdown device (ESD), wherein the synthesis gas composition on-line color spectrum analysis meter is installed on a synthetic gas outlet pipeline of a synthetic gas scrubbing tower and is connected with the ESD. The interlock protection system further comprises a CO2 on-line infra-red analyzer which is installed on the synthetic gas outlet pipeline and is connected with the ESD. The interlock protection system has the advantages that the problems of accidents such as the preoxiding and the overheating of the gasifier and preoxiding explosion caused by the factors such as the blocking of a stock pump inlet, insufficient stocktaking of a stock pump and damage of a nozzle due to poor coal slurry liquidity are solved, interlock accuracy and sensitivity are high, and the interlock system is safe and reliable.
Description
Technical field:
The utility model relates to a kind of interlocking protective system, relates in particular to a kind of interlocking protective system that prevents vapourizing furnace peroxide overtemperature.
Background technology:
Coal water slurry gasification technique is to use in the industry at present the most general, technology maturation manufacturing synthesis gas process, feed coal is made coal water slurry, coal water slurry through high-pressure coal pulp pump be delivered to burner place and pure oxygen by a certain percentage mixed aerosol enter vapourizing furnace, condition issues the first portion oxidizing reaction and produces synthetic gas under High Temperature High Pressure, as rear operation unstripped gas.Adopt flexible pipe diaphragm piston pump delivery coal slurry to vapourizing furnace and pure oxygen to carry out incomplete oxidation reaction production synthetic gas in coal water slurry gasification technique, because the reasons such as poor fluidity, the burner atomizing effect of coal slurry be poor cause system's peroxide accident.
The utility model content:
The purpose of this utility model is to provide a kind of accuracy and high, the safe and reliable a kind of interlocking protective system that prevents vapourizing furnace peroxide overtemperature of susceptibility.
The utility model is implemented by following technical scheme: a kind of interlocking protective system that prevents vapourizing furnace peroxide overtemperature; it comprises that gas composition on-line chromatograph analyser, ESD emergency stopping system, described gas composition on-line chromatograph analyser are arranged on the syngas outlet pipeline of synthesis gas washing tower; described gas composition on-line chromatograph analyser is connected with described ESD emergency stopping system, and it also comprises CO
2Online infrared spectrum analyser, described CO
2Online infrared spectrum analyser is arranged on described syngas outlet pipeline, described CO
2Online infrared spectrum analyser is connected with described ESD emergency stopping system.
Advantage of the present utility model: solved because the coal slurry poor fluidity causes the coal slurry pump import to stop up coal slurry pump and looked the accidents such as vapourizing furnace peroxide overtemperature that the factors such as deficiency, burner broken cause, peroxide blast up and down, interlocking accuracy and susceptibility are high, safe and reliable.
Description of drawings:
Fig. 1 is the utility model integrated connection schematic diagram.
Gas composition on-line chromatograph analyser 1, ESD emergency stopping system 2, CO
2Online infrared spectrum analyser 3, synthesis gas washing tower 4, syngas outlet pipeline 5, DCS distributed control system 6.
Embodiment:
Embodiment: as shown in Figure 1, a kind of interlocking protective system that prevents vapourizing furnace peroxide overtemperature, it comprises gas composition on-line chromatograph analyser 1, ESD emergency stopping system 2 and CO
2Online infrared spectrum analyser 3, gas composition on-line chromatograph analyser 1 and CO
2Online infrared spectrum analyser 3 is arranged on the syngas outlet pipeline 5 of synthesis gas washing tower 4, gas composition on-line chromatograph analyser 1 and CO
2Online infrared spectrum analyser 3 is connected with ESD emergency stopping system 2 respectively.
Working process: with the CO of gas composition on-line chromatograph analyser 1 analysis
2, O
2Content and CO
2The CO that online infrared spectrum analyser 3 is analyzed
2Content results is delivered to ESD emergency stopping system 2 and is made three and select two logical interlock, wherein two CO
2Content is 30%, O
2Content is 1%.And in DCS distributed control system 6, CO is set
2, O
2Content is high reports to the police, CO
2, O
2Alarming value is respectively 22%, 0.5%, reminds operator in time to adjust operating mode; Work as CO
2, O
2Content continues to raise, CO
2Content higher than 30%, O
2Content adopts three to select two logics higher than 1%, and continues 1 second, and vapourizing furnace stops.
Claims (1)
1. interlocking protective system that prevents vapourizing furnace peroxide overtemperature; it comprises that gas composition on-line chromatograph analyser, ESD emergency stopping system, described gas composition on-line chromatograph analyser are arranged on the syngas outlet pipeline of synthesis gas washing tower; described gas composition on-line chromatograph analyser is connected with described ESD emergency stopping system; it is characterized in that, it also comprises CO
2Online infrared spectrum analyser, described CO
2Online infrared spectrum analyser is arranged on described syngas outlet pipeline, described CO
2Online infrared spectrum analyser is connected with described ESD emergency stopping system.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220661234 CN202989078U (en) | 2012-11-09 | 2012-11-09 | Interlock protection system for preventing gasifier from peroxiding and overheating |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220661234 CN202989078U (en) | 2012-11-09 | 2012-11-09 | Interlock protection system for preventing gasifier from peroxiding and overheating |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202989078U true CN202989078U (en) | 2013-06-12 |
Family
ID=48560275
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201220661234 Expired - Lifetime CN202989078U (en) | 2012-11-09 | 2012-11-09 | Interlock protection system for preventing gasifier from peroxiding and overheating |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202989078U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107216917A (en) * | 2016-03-22 | 2017-09-29 | 中国石油化工股份有限公司 | The monitoring method for preventing coal water slurry gasifying device peroxide from exploding |
-
2012
- 2012-11-09 CN CN 201220661234 patent/CN202989078U/en not_active Expired - Lifetime
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107216917A (en) * | 2016-03-22 | 2017-09-29 | 中国石油化工股份有限公司 | The monitoring method for preventing coal water slurry gasifying device peroxide from exploding |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CX01 | Expiry of patent term | ||
| CX01 | Expiry of patent term |
Granted publication date: 20130612 |