CN104713764A - Drainage device of converter gas analyzer - Google Patents
Drainage device of converter gas analyzer Download PDFInfo
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- CN104713764A CN104713764A CN201510165182.2A CN201510165182A CN104713764A CN 104713764 A CN104713764 A CN 104713764A CN 201510165182 A CN201510165182 A CN 201510165182A CN 104713764 A CN104713764 A CN 104713764A
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Abstract
The invention discloses a drainage device of a converter gas analyzer, belonging to the technical field of a converter gas analyzer in the metallurgical industry. The drainage device comprises a steam-water separator and a sample gas filter, wherein a gas inlet of the steam-water separator is communicated with a sample gas inlet with a valve through a pipeline; a water outlet of the steam-water separator is connected with a separator drainage pipeline with a drainage valve; a gas outlet of the steam-water separator is communicated with an inlet of the sample gas filter through a vent pipeline; a vent valve communicated with the atmosphere is arranged on the vent pipeline; and the bottom of the sample gas filter is communicated with a water inlet end of the drainage valve on the separator drainage pipeline through a filter drainage pipeline. The drainage device disclosed by the invention is simple and compact in structure and does not generate pressure difference and consequent failure of drainage during drainage; and moreover, the drainage device realizes efficient and sufficient drainage, does not need artificial drainage and is favorable for saving the production cost.
Description
Technical field
The present invention relates to metallurgy industry coal gas of converter analyser technical field.
Background technology
Steel and iron industry from energy-saving, clean Mode of Circular, it is the inevitable outcome of steel and iron industry high speed development in recent years, converter producing realize negative can make steel to have reduce costs, realize the advantages such as energy recycle, reclaim coal gas of converter realization and bear and can make steel BOF steelmaking shop widespread use at home and abroad.
Gas analysis meter mainly detects CO and O in coal gas of converter
2content, according to analyser analyze result, determine to reclaim coal gas or diffuse.Gas analysis meter is analyzed from converter gas pipeline sampling by sampling line; in coal gas of converter, dust content is large; OG wet dust removal and converter fan impeller is adopted to rinse at a high speed; water cut is high; understand some steam enter pipeline and be mixed in coal gas of converter; steam can cause the content of oxygen in sample gas to increase after entering gas analysis meter with coal gas of converter; there is explosion danger; and cause irreversible damage to analyser; damage sampling pump simultaneously, and occur to cause because of analyser humidity alarm the phenomenon that coal gas of converter cannot normally reclaim.
But in the production of reality, the drainage effect of the drainage arrangement of the coal gas of converter analyser inside that my company adopts is also bad, as shown in Figure 1, drainage arrangement comprises steam-water separator 6 and a water discharging valve 8, the gas entry of steam-water separator 6 is communicated with sample gas inlet pipeline 3, outlet is communicated with the entrance of sample air filter 10, coal gas enters steam-water separator 6 by sample gas inlet pipeline 3, steam in sample gas cools at this, but part steam also can enter in sample air filter 10, steam-water separator 6 in this drainage arrangement is when carrying out draining, the valve 2 be positioned on sample gas inlet pipeline 3 is all closed, only open water discharging valve 8, at this moment steam-water separator 6 inside is almost closed space, although outlet is connected with sample air filter 10, but pipeline is narrow, and also have a large amount of mediums in filtrator 10, the circulation of air is poor, steam-water separator 6 inside is caused to form negative pressure, cause discharge pipe line 7 drainage speed of steam-water separator 6 slow, water becomes ticking form to discharge, and cause draining incomplete because negative pressure exists, water is had to accumulate, steam is easily made to enter gas analysis meter main frame 11, make it damage, and part steam also can enter in the sample air filter 10 be communicated with steam-water separator 6, produce ponding, sample air filter 10 does not have drainage arrangement, causing cannot self-draining, steam enters gas analysis meter main frame 11 with air-flow, cause instrument damage, damage sampling pump simultaneously, and occur to cause because of analyser humidity alarm the phenomenon that coal gas of converter cannot normally reclaim.Especially winter, steam can increase, need frequent artificial drainage or maintenance device, affect continuity and the work efficiency of work, cause the waste of labour and the increase of cost, and frequently there is humidity alarm in analyser, have impact on the recovery of coal gas of converter to a great extent, cause very large loss to company.
Therefore, how providing that a kind of drainage effect of coal gas of converter analyser is good, draining is abundant, structure is simple, alarm rate and failure rate is low, cost-saving drainage arrangement, is the technical matters that those skilled in the art need solution badly.
Summary of the invention
The technical problem to be solved in the present invention, be to provide a kind of coal gas of converter analyser drainage arrangement, its structure is simple, draining is thorough, quick, effective, do not affect the detection of oxygen content, avoid steam and fault is caused to gas analysis meter and damages sampling pump, alarm rate and failure rate is low, winter does not need artificial drainage, reduces production cost.
For solving the problems of the technologies described above, the technical solution used in the present invention is:
A kind of coal gas of converter analyser drainage arrangement, comprise steam-water separator and sample air filter, gas entry and the valvular sample gas inlet pipeline connection of installation of described steam-water separator, the water delivering orifice of steam-water separator is connected with the separation vessel discharge pipe line of water discharging valve, the gas exit of steam-water separator is communicated with by vent line with the entrance of sample air filter, it is characterized in that: described vent line is provided with the gas valve be communicated with air; The bottom of described sample air filter is communicated with the water inlet end of the water discharging valve on separation vessel discharge pipe line by filtrator discharge pipe line.
As preferably, described in valve, gas valve and the water discharging valve be positioned on sample gas inlet pipeline be solenoid valve, described gas valve and water discharging valve action simultaneously, receive PLC system instruction simultaneously and carry out switch control rule.
As preferably, the valve open period of described gas valve and water discharging valve is set as 30 seconds.
As preferably, described water discharging valve is communicated with by three-way pipe with between separation vessel discharge pipe line, filtrator discharge pipe line.
As preferably, described gas valve is communicated with by three-way pipe with between vent line, air.
The beneficial effect adopting technique scheme to produce is:
1, the drainage arrangement of existing coal gas of converter analyser, steam-water separator is wherein provided with three interfaces, gas entry and the valvular sample gas inlet pipeline connection of installation, gas exit is connected with sample air filter, water delivering orifice is connected and installed with the separation vessel discharge pipe line of water discharging valve, during draining, gas analysis meter quits work, valve closing on sample gas inlet pipeline, sampling pump stops operating, now, water containing steam cohesion in steam-water separator, open water discharging valve draining, but, at this moment steam-water separator inside is almost closed space, although gas exit is connected with sample air filter, but pipeline is narrow, and also have a large amount of mediums in filtrator, the circulation of air is poor, therefore, steam-water separator is inner when draining produces negative pressure, draining is caused to become ticking form, speed is slow, and draining is not thorough, water is had to accumulate, damage instrument, especially winter, steam can increase, need frequent artificial drainage or maintenance device, affect continuity and the work efficiency of work, cause the waste of labour and the increase of cost, and have impact on the recovery of coal gas of converter to a great extent, very large loss is caused to company.This programme is by arranging gas valve at steam-water separator top, come round with air, when gas valve is opened, steam-water separator inside is connected with outside atmosphere, now water discharging valve is opened simultaneously, carry out draining, due to steam-water separator upper and lower opening logical air simultaneously, inside and outside pressure is identical, chilled water is wherein discharged rapidly, and do not have the phenomenon of accumulation, when running into that winter, steam can increase, also can the chilled water of emptying in time, do not need artificial drainage, ensure that the continuity of work and improve work efficiency, structure is simple, draining is thoroughly effective, avoid steam cause fault to gas analysis meter and damage sampling pump, greatly reduce the humidity alarm rate of analyser, improve the yield of coal gas, do not affect the detection of gas analysis meter to oxygen, reduce production cost, save labour, save cost.
2, the drainage arrangement of existing coal gas of converter analyser, sample air filter wherein does not arrange drainage interface, but in the production run of reality, sample gas is after steam-water separator, can not remove steam wherein completely, the steam having small part enters in sample air filter, forms condensate water after cooling, but sample air filter cannot self-draining, cause ponding to increase, damage instrument, and then need manually to carry out manual draining, cause the waste of labour, the increase of production cost.This programme is by increasing filtrator discharge pipe line in the bottom of sample air filter, again through water discharging valve after being communicated with separation vessel discharge pipe line, chilled water in sample air filter can be discharged, and add gas valve, gas valve and water discharging valve are opened simultaneously, make the upper and lower opening of sample air filter logical air simultaneously, inside and outside pressure is identical, chilled water is wherein discharged rapidly, and do not have the phenomenon of accumulation, when running into that winter, steam can increase, also can the chilled water of emptying in time, do not need artificial drainage, ensure that the continuity of work and improve work efficiency, structure is simple, draining is thoroughly effective, avoid steam cause fault to gas analysis meter and damage sampling pump, greatly reduce the humidity alarm rate of analyser, improve the yield of coal gas, do not affect the detection of gas analysis meter to oxygen, reduce production cost, save labour, save cost.
Accompanying drawing explanation
Fig. 1 is the structural representation of existing coal gas of converter analyser drainage arrangement;
Fig. 2 is the structural representation of one embodiment of the invention;
Each figure number name is called: 1-gas piping; 2-valve; 3-sample gas inlet pipeline; 4-gas valve; 5-vent line; 6-steam-water separator; 7-separation vessel discharge pipe line; 8-water discharging valve; 9-filtrator discharge pipe line; 10-sample air filter; 11-analyser main frame.
Embodiment
Below in conjunction with accompanying drawing and an embodiment, the present invention is further detailed explanation.
As shown in Figure 2, the present invention includes steam-water separator 6 and sample air filter 10, the gas entry of described steam-water separator 6 is communicated with the sample gas inlet pipeline 3 being provided with valve 2, the water delivering orifice of steam-water separator 6 lower end is connected with the separation vessel discharge pipe line 7 of water discharging valve 8, the gas exit of steam-water separator 6 is communicated with by vent line 5 with the entrance of sample air filter 10, and described vent line 5 is provided with the gas valve 4 be communicated with air; The bottom of described sample air filter 10 is communicated with the water inlet end of the water discharging valve 8 on separation vessel discharge pipe line 7 by filtrator discharge pipe line 9.
The overall drainage principle of the present invention and process are: by-product gas during steel-making carries water vapour and water smoke enters gas pipe net system, before gas analysis meter work, be positioned at the valve 2 on sample gas inlet pipeline, gas valve 4 and water discharging valve 8 and be all in closed condition, when steelmaking oxygen blowing work starts, gas analysis meter is started working, system selects one of them sampling probe automatically, 2 valves being arranged in the valve 2(Fig. 2 on sample gas inlet pipeline select one) open, sampling pump is started working, and sample gas enters gas analysis meter from pipeline, after steelmaking oxygen blowing terminates, gas analysis meter quits work, that valve of front opening in valve 2(Fig. 2) close, sampling pump stops operating, now, water containing the cohesion of part steam in steam-water separator 6, a small amount of steam is also had to enter in sample air filter 10, after gas analysis meter quits work, open gas valve 4 and water discharging valve 8 simultaneously, make the upper and lower opening of steam-water separator 6 and sample air filter 10 logical air simultaneously, water in steam-water separator 6 and sample air filter 10 is discharged rapidly, then gas valve 4 and the draining valve family of power and influence 8 is closed, drainage works terminates.
The present invention improves existing coal gas of converter analyser drainage arrangement, by increasing gas valve 4 and filtrator discharge pipe line 9 in drainage arrangement, after gas valve 4 and water discharging valve 8 are opened, the upper and lower opening logical air simultaneously of steam-water separator 6 and sample air filter 10, inside and outside pressure is identical, chilled water is wherein discharged rapidly, and do not have the phenomenon of accumulation, when running into that winter, steam can increase, also can the chilled water of emptying in time, do not need artificial drainage, ensure that the continuity of work and improve work efficiency, structure is simple, draining is thoroughly effective, avoid steam cause fault to gas analysis meter and damage sampling pump, greatly reduce the humidity alarm rate of analyser, improve the yield of coal gas, do not affect the detection of gas analysis meter to oxygen, reduce production cost, save labour, save cost.
Further, the described valve 2 be positioned on sample gas inlet pipeline 3, gas valve 4 and water discharging valve 8 are solenoid valve, described gas valve 4 and water discharging valve 8 action simultaneously, receive PLC system instruction simultaneously and carry out switch control rule, achieve the robotization of package unit, do not need workman to enter scene or be in dangerous environment to complete detection, ensure that the security of production, save human and material resources, improve work efficiency.
Further, according to experiment repeatedly, the valve open period of described gas valve 4 and water discharging valve 8 is set as getting final product emptying chilled water in 30 seconds, and the time is reasonable, accurate, is conducive to increasing work efficiency.
Further, described water discharging valve 8 is communicated with by three-way pipe with between separation vessel discharge pipe line 7, filtrator discharge pipe line 9, makes the connection between three more simple, convenient, and reliable, easily operation and realization.
Further, described gas valve 4 is communicated with by three-way pipe with between vent line 5, air, makes the connection between three more simple, convenient, and reliable, easily operation and realization.
Through the transformation to existing coal gas of converter analyser drainage arrangement; greatly reduce the phenomenon that the coal gas of converter that causes because of analyser humidity alarm cannot normally reclaim; and the abundant recovery of coal gas of converter and utilization not only reduce because coal gas arranges the environmental pollution caused outward, and ensure that making full use of of the energy.
The coal gas of converter that coal gas of converter analyser humidity alarm of the prior art impact reclaims 1000m3 according to average every stove steel calculate words, after transformation, gas chamber can reclaim coal gas of converter 80000m3 every day more, amount to into mark coal and be approximately 16 tons, mark 5840 tons, coal within 1 year, can be saved, substantially increase the yield of coal gas, saved the energy, reduce production cost, increase the output value.
Claims (5)
1. a coal gas of converter analyser drainage arrangement, comprise steam-water separator (6) and sample air filter (10), the gas entry of described steam-water separator (6) is communicated with the sample gas inlet pipeline (3) being provided with valve (2), the water delivering orifice of steam-water separator (6) is connected with the separation vessel discharge pipe line (7) of water discharging valve (8), the gas exit of steam-water separator (6) is communicated with by vent line (5) with the entrance of sample air filter (10), it is characterized in that: described vent line (5) is provided with the gas valve (4) be communicated with air; The bottom of described sample air filter (10) is communicated with the water inlet end of the water discharging valve (8) on separation vessel discharge pipe line (7) by filtrator discharge pipe line (9).
2. a kind of coal gas of converter analyser drainage arrangement according to claim 1, it is characterized in that: described in valve (2), gas valve (4) and the water discharging valve (8) be positioned on sample gas inlet pipeline (3) be solenoid valve, described gas valve (4) and water discharging valve (8) action simultaneously, receive PLC system instruction simultaneously and carry out switch control rule.
3. a kind of coal gas of converter analyser drainage arrangement according to claim 2, is characterized in that: the valve open period of described gas valve (4) and water discharging valve (8) is set as 30 seconds.
4. a kind of coal gas of converter analyser drainage arrangement according to claim 1, is characterized in that: described water discharging valve (8) is communicated with by three-way pipe between (9) with separation vessel discharge pipe line (7), filtrator discharge pipe line.
5. a kind of coal gas of converter analyser drainage arrangement according to claim 1, is characterized in that: described gas valve (4) is communicated with by three-way pipe with between vent line (5), air.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510165182.2A CN104713764A (en) | 2015-04-09 | 2015-04-09 | Drainage device of converter gas analyzer |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510165182.2A CN104713764A (en) | 2015-04-09 | 2015-04-09 | Drainage device of converter gas analyzer |
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| CN104713764A true CN104713764A (en) | 2015-06-17 |
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| CN201510165182.2A Pending CN104713764A (en) | 2015-04-09 | 2015-04-09 | Drainage device of converter gas analyzer |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109692544A (en) * | 2019-02-11 | 2019-04-30 | 深圳国技仪器有限公司 | Gas-liquid separator and atmospheric sampling equipment |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109692544A (en) * | 2019-02-11 | 2019-04-30 | 深圳国技仪器有限公司 | Gas-liquid separator and atmospheric sampling equipment |
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