CN201859142U - Oxygen content detection system for single furnace of gas making furnace - Google Patents
Oxygen content detection system for single furnace of gas making furnace Download PDFInfo
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- CN201859142U CN201859142U CN2010205783147U CN201020578314U CN201859142U CN 201859142 U CN201859142 U CN 201859142U CN 2010205783147 U CN2010205783147 U CN 2010205783147U CN 201020578314 U CN201020578314 U CN 201020578314U CN 201859142 U CN201859142 U CN 201859142U
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Abstract
The utility model relates to an oxygen content detection system for a single furnace of a gas making furnace, which comprises an oxygen analyzer, a travel switch, a main machine, an audible and visual alarm and a control communication interface, wherein the oxygen analyzer and the audible and visual alarm are respectively connected with the main machine through the control communication interface; the travel switch is electrically connected with the main machine; one oxygen analyzer is mounted at an outlet of each scrubber tower in front of a gas tank or in front of the scrubber tower and used for detecting the oxygen content of the gas making furnace in front of the scrubber tower on a real-time basis; the travel switch is arranged at each valve on the single furnace of the gas making furnace and used for detecting the valve position state of each valve on the single furnace of the gas making furnace; when the travel switch detects that the valve on the gas making furnace is not in place, and the oxygen analyzer detects out that the oxygen content is out of limits, the main machine is used for controlling the audible and visual alarm to send out an audible and visual alarm, and the furnace number is displayed on the main machine.
Description
Technical field
The utility model relates to the single stove oxygen content of a kind of Gas-making Furnace detection system, belongs to chemical field.
Background technology
Oxygen content in the gas making workshop section semiwater gas is owing to the tight and inartificial reasons such as maloperation of valve closing often fluctuate, when oxygen content raises suddenly, as untimely discovery, not only can badly damaged conversion catalyst, and can cause serious accident to take place, as the blast of static decoking etc.
It is the big difficult point of one in the nitrogen fertilizer production that the single stove oxygen content of Gas-making Furnace detects all the time, former the Ministry of Chemical Industry has just proposed the demand of this respect in the eighties, but be limited to automatization level at that time, particularly the high price of the immature and external analytical instrument of homemade analytical instrument never well solves for many years.
At present, in nitrogen fertilizer production, usually adopt online oxygen analyzer to carry out the detection of oxygen content, as shown in Figure 1, process chart for present synthesis ammonia system, after difference nitrogen fertilizer production producer is installed in gas holder with online oxygen analyzer usually, behind the roots blower, before the static decoking, static removes defocused, workshop sections such as conversion, gas making workshop section generally is many shared gas holders of Gas-making Furnace in the synthesis ammonia system, semiwater gas is through Gas-making Furnace, aeration tower, gas holder, roots blower, desulfurization is to conversion section, about 5-10 of time minute, only need 2-3 working cycle will cause oxygen content index exceeding standard in the gas holder during separate unit Gas-making Furnace fault.The oxygen content index generally is controlled at below 0.8% after the desulfurization, if oxygen analyzer is installed in behind the gas holder or follow-up workshop section, when oxygen analyzer reflects that oxygen content exceeds standard, oxygen content exceeds standard already in the gas holder, finds out which platform Gas-making Furnace is fault come from and need the longer time, and needs blowing out, and will be the whole emptying of the gas in the gas holder, synthesis ammonia system all stops to produce, and ammonia synthesis production causes significant impact, has increased production cost.
The utility model content
Problem to be solved in the utility model is at above deficiency, the single stove oxygen content of a kind of Gas-making Furnace detection system is provided, utilize the oxygen analysis instrument Gas-making Furnace to be carried out the real-time detection of oxygen content, utilize travel switch that each valve of Gas-making Furnace is carried out the real-time detection of valve position state simultaneously, thereby can find the trouble spot in time, exactly.
For overcoming the above problems, the technical scheme that the utility model adopted is: the single stove oxygen content of Gas-making Furnace detection system, it is characterized in that: the single stove oxygen content of described Gas-making Furnace detection system comprises oxygen analyzer, travel switch, main frame, audible-visual annunciator and control communication interface, oxygen analyzer is connected with main frame by the control communication interface respectively with audible-visual annunciator, and travel switch is electrically connected with main frame.
The single stove oxygen content of Gas-making Furnace detection method is characterized in that: the single stove oxygen content of described Gas-making Furnace detection method is as follows:
(a) oxygen analyzer is installed before gas holder, oxygen analyzer detects the oxygen content of Gas-making Furnace in real time;
(b) each the valve place on the single stove of every Gas-making Furnace is provided with travel switch, and travel switch detects the valve position state of each valve on the single stove of Gas-making Furnace in real time;
(c) to detect the valve of certain Gas-making Furnace not in place when travel switch, and oxygen analyzer is when detecting oxygen content and exceeding standard, and host computer control is sent sound and light alarm, and shows heat (batch) number on main frame.
In the described step (c), when sending sound and light alarm, if main frame is arranged on auto state, then host computer control blowing out when sending sound and light alarm; If main frame is arranged on manual state, then only send sound and light alarm, control blowing out by operating personnel.
Before oxygen analyzer in the described step (a) is installed in aeration tower exit or aeration tower.
The utility model adopts technique scheme, have the following advantages: an oxygen analyzer is installed before each aeration tower exit before gas holder or the aeration tower, oxygen analyzer detects the oxygen content of the preceding Gas-making Furnace of aeration tower in real time, each valve place on the single stove of every Gas-making Furnace is provided with travel switch, travel switch detects the valve position state of each valve on the single stove of Gas-making Furnace in real time, the valve that detects certain Gas-making Furnace when travel switch is not in place, and when oxygen analyzer detects oxygen content and exceeds standard, the host computer control audible-visual annunciator sends sound and light alarm, and on main frame, show heat (batch) number, when sending sound and light alarm, if main frame is arranged on auto state, then host computer control blowing out when sending sound and light alarm; If main frame is arranged on manual state, then only send sound and light alarm, control blowing out by operating personnel, so just can detect the single stove of the Gas-making Furnace that breaks down rapidly, not only avoid the damage of conversion catalyst, and avoided the generation of serious accident, improved security; After the blowing out, just do not need again the whole emptying of the gas in the gas holder, cut off whole synthesis ammonia system, saved cost.
The utility model is described in further detail below in conjunction with drawings and Examples.
Description of drawings
Accompanying drawing 1 is the process flow diagram of synthesis ammonia system in the prior art;
Accompanying drawing 2 is the structured flowchart of synthesis ammonia system among the utility model embodiment 1;
Accompanying drawing 3 is the structured flowchart of synthesis ammonia system among the utility model embodiment 2;
Accompanying drawing 4 is the oxygen content detection system figure among the utility model embodiment.
Embodiment
Embodiment 1, as shown in Figure 4, the single stove oxygen content of Gas-making Furnace detection system comprises oxygen analyzer, travel switch, main frame, audible-visual annunciator and control communication interface, oxygen analyzer is connected with main frame by the control communication interface respectively with audible-visual annunciator, and travel switch is electrically connected with main frame.
Oxygen analyzer in the present embodiment is selected Weifang China point oxygen analyzer that the auspicious analytical instrumentation techniques of match company limited produces for use, the audible-visual annunciator that audible-visual annunciator in the present embodiment selects for use Xinliming Explosion-Proof Electric Appliance Co., Ltd. to produce, control communication interface between oxygen analyzer and the main frame is 485/232 translation interface, and the control communication interface between audible-visual annunciator and the main frame is the switching value input/output board.
As shown in Figure 2, the 1# Gas-making Furnace, 2# Gas-making Furnace and 3# Gas-making Furnace are one group of shared 1# aeration tower, the 4# Gas-making Furnace, 5# Gas-making Furnace and 6# Gas-making Furnace are one group of shared 2# aeration tower, the shared gas holder of 1# aeration tower and 2# aeration tower, when being provided with, in the exit of 1# aeration tower and the exit of 2# aeration tower an oxygen analyzer is installed respectively, oxygen analyzer detects the oxygen content of the preceding Gas-making Furnace of aeration tower in real time, each valve place on the single stove of every Gas-making Furnace is provided with travel switch, travel switch detects the valve position state of each valve on the single stove of Gas-making Furnace in real time, the valve that detects certain Gas-making Furnace when travel switch is not in place, and when oxygen analyzer detects oxygen content and exceeds standard, the host computer control audible-visual annunciator sends sound and light alarm, and on main frame, show heat (batch) number, when sending sound and light alarm, if main frame is arranged on auto state, then host computer control blowing out when sending sound and light alarm; If main frame is arranged on manual state, then only send sound and light alarm, control blowing out by operating personnel, so just can detect the single stove of the Gas-making Furnace that breaks down rapidly, not only avoid the damage of conversion catalyst, and avoided the generation of serious accident, improved security; After the blowing out, just do not need again the whole emptying of the gas in the gas holder, cut off whole synthesis ammonia system, saved cost.
The single stove oxygen content of Gas-making Furnace detection method may further comprise the steps:
(a) oxygen analyzer is installed in the aeration tower of each before gas holder exit, and oxygen analyzer detects the oxygen content of the preceding Gas-making Furnace of aeration tower in real time;
(b) each the valve place on the single stove of every Gas-making Furnace is provided with travel switch, and travel switch detects the valve position state of each valve on the single stove of Gas-making Furnace in real time;
(c) to detect the valve of certain Gas-making Furnace not in place when travel switch, and oxygen analyzer is when detecting oxygen content and exceeding standard, and host computer control is sent sound and light alarm, and shows heat (batch) number on main frame;
(d) when sending sound and light alarm, if main frame is arranged on auto state, then host computer control blowing out when sending sound and light alarm;
If main frame is arranged on manual state, then only send sound and light alarm, control blowing out by operating personnel.
Embodiment 2, as shown in Figure 4, the single stove oxygen content of Gas-making Furnace detection system comprises oxygen analyzer, travel switch, main frame, audible-visual annunciator and control communication interface, oxygen analyzer is connected with main frame by the control communication interface respectively with audible-visual annunciator, and travel switch is electrically connected with main frame.
Oxygen analyzer in the present embodiment is selected Weifang China point oxygen analyzer that the auspicious analytical instrumentation techniques of match company limited produces for use, the audible-visual annunciator that audible-visual annunciator in the present embodiment selects for use Xinliming Explosion-Proof Electric Appliance Co., Ltd. to produce, control communication interface between oxygen analyzer and the main frame is the 485/USB translation interface, and the control communication interface between audible-visual annunciator and the main frame is the switching value input/output module.
As shown in Figure 3, the 1# Gas-making Furnace, 2# Gas-making Furnace and 3# Gas-making Furnace are one group of shared 1# aeration tower, the 4# Gas-making Furnace, 5# Gas-making Furnace and 6# Gas-making Furnace are one group of shared 2# aeration tower, the shared gas holder of 1# aeration tower and 2# aeration tower, when being provided with, before the 1# aeration tower He before the 2# aeration tower, an oxygen analyzer is installed respectively, oxygen analyzer detects the oxygen content of the preceding Gas-making Furnace of aeration tower in real time, each valve place on the single stove of every Gas-making Furnace is provided with travel switch, travel switch detects the valve position state of each valve on the single stove of Gas-making Furnace in real time, the valve that detects certain Gas-making Furnace when travel switch is not in place, and when oxygen analyzer detects oxygen content and exceeds standard, the host computer control audible-visual annunciator sends sound and light alarm, and on main frame, show heat (batch) number, when sending sound and light alarm, if main frame is arranged on auto state, then host computer control blowing out when sending sound and light alarm; If main frame is arranged on manual state, then only send sound and light alarm, control blowing out by operating personnel, so just can detect the single stove of the Gas-making Furnace that breaks down rapidly, not only avoid the damage of conversion catalyst, and avoided the generation of serious accident, improved security; After the blowing out, just do not need again the whole emptying of the gas in the gas holder, cut off whole synthesis ammonia system, saved cost.
The single stove oxygen content of Gas-making Furnace detection method may further comprise the steps:
(a) oxygen analyzer is installed before the aeration tower of each before gas holder, oxygen analyzer detects the oxygen content of the preceding Gas-making Furnace of aeration tower in real time;
(b) each the valve place on the single stove of every Gas-making Furnace is provided with travel switch, and travel switch detects the valve position state of each valve on the single stove of Gas-making Furnace in real time;
(c) to detect the valve of certain Gas-making Furnace not in place when travel switch, and oxygen analyzer is when detecting oxygen content and exceeding standard, and host computer control is sent sound and light alarm, and shows heat (batch) number on main frame;
(d) when sending sound and light alarm, if main frame is arranged on auto state, then main frame is controlled blowing out by the control communication interface when sending sound and light alarm;
If main frame is arranged on manual state, then only send sound and light alarm, control blowing out by operating personnel.
The oxygen analyzer that oxygen analyzer among the above embodiment also can select for use other manufacturers to produce, as: the oxygen analyzer that the oxygen analyzer that Siemens is produced and Switzerland ABB AB produce, the audible-visual annunciator that audible-visual annunciator among the above embodiment also can select for use other manufacturers to produce, as: the audible-visual annunciator that the two rising sun Electronics Co., Ltd.s in audible-visual annunciator that Harbin Oriental Alarm Equipment Development Co., Ltd produces and Shanghai produce.
Claims (1)
1. the single stove oxygen content of Gas-making Furnace detection system, it is characterized in that: the single stove oxygen content of described Gas-making Furnace detection system comprises oxygen analyzer, travel switch, main frame, audible-visual annunciator and control communication interface, oxygen analyzer is connected with main frame by the control communication interface respectively with audible-visual annunciator, and travel switch is electrically connected with main frame.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010205783147U CN201859142U (en) | 2010-10-27 | 2010-10-27 | Oxygen content detection system for single furnace of gas making furnace |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010205783147U CN201859142U (en) | 2010-10-27 | 2010-10-27 | Oxygen content detection system for single furnace of gas making furnace |
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| CN201859142U true CN201859142U (en) | 2011-06-08 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN2010205783147U Expired - Fee Related CN201859142U (en) | 2010-10-27 | 2010-10-27 | Oxygen content detection system for single furnace of gas making furnace |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102004141A (en) * | 2010-10-27 | 2011-04-06 | 薛文伟 | Method and system for detecting oxygen content in single furnace of gas-making furnace |
-
2010
- 2010-10-27 CN CN2010205783147U patent/CN201859142U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102004141A (en) * | 2010-10-27 | 2011-04-06 | 薛文伟 | Method and system for detecting oxygen content in single furnace of gas-making furnace |
| CN102004141B (en) * | 2010-10-27 | 2014-05-21 | 薛文伟 | Method and system for detecting oxygen content in single furnace of gas-making furnace |
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| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20110608 Termination date: 20141027 |
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| EXPY | Termination of patent right or utility model |