CN203090729U - Desulfurization device convenient for automatic control - Google Patents
Desulfurization device convenient for automatic control Download PDFInfo
- Publication number
- CN203090729U CN203090729U CN 201320115082 CN201320115082U CN203090729U CN 203090729 U CN203090729 U CN 203090729U CN 201320115082 CN201320115082 CN 201320115082 CN 201320115082 U CN201320115082 U CN 201320115082U CN 203090729 U CN203090729 U CN 203090729U
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- gas
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- oxygen
- control
- desulfurizing tower
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Abstract
The utility model discloses a desulfurization device convenient for automatic control. The desulfurization device comprises a desulfurization tower, wherein a gas mixture pipeline is arranged at one side of the desulfurization tower; a first online laser oxygen meter is arranged on the gas mixture pipeline; an oxygen gas tube and a nitrogen gas tube are arranged at the outer side of the gas mixture pipeline by a tee joint, respectively; an adjusting valve and a stop valve are arranged in the oxygen gas tube and the nitrogen gas tube, respectively, and are used for mixing two pipeline gases before the two gases enter the desulfurization tower; the gas mixing proportion is controlled by controlling opening-closing degree of the two gas adjusting valves; a tail gas pipeline connected with the top of the desulfurization tower is communicated to a coal gas outlet pipeline by a tower-top absorption adjusting valve; a second online laser oxygen meter is arranged in the tail gas pipeline; meanwhile, an emergency blow-off valve branch is arranged. The desulfurization device convenient for automatic control can be used for realizing essentially safe coal gas desulfurization effect by utilizing the principle that the nitrogen gas does not participate in combustion, mixing the oxygen gas with nitrogen gas and utilizing the laser detecting technology to control the mixing proportion and the reaction concentration in a combined manner.
Description
Technical field
The utility model relates to a kind of sulfur removal technology of coke gas, especially the safety automation control technology in the desulfurization oxygenation program.
Background technology
At present, the known coke gas desulfurization difficult problem that is the coal gas process field.Particularly a large amount of waste gas in coal gas and compressed air reaction back directly discharges, and is the important environomental pollution source of coking process.Therefore, the part coal chemical industry enterprises has been taked the novel process of pure oxygen desulfurization in order to reduce the generating capacity of waste gas.This technological effect is good, and it is few to produce tail gas (waste gas) amount, and can directly incorporate gas piping into, and to the protection effect of environment, negative effect is little.But because the particularity of chemical enterprise, the conveying of pure oxygen, desulphurization reaction process etc. all exists great potential safety hazard, particularly pure oxygen and sulphur can produce chemical reaction, even spontaneous combustion or detonation, and unpredictable consequence takes place.
The utility model content
In order to overcome that pure oxygen enters behind the desulfurizing tower because too high oxygen level causes sulphur spontaneous combustion or ill effect more, the utility model provides a kind of automatic control technology of essential safety, this technology is not only carried out the automatic control of overall process to the pure oxygen desulfurization on principle, provide guarantee from the essential safety aspect simultaneously, on the basis that guarantees desulfurized effect, fundamentally solved the insecurity factor that the pure oxygen desulfurization is brought.
The technical scheme that its technical problem that solves the utility model adopts is:
A kind of desulfurizer of being convenient to automation control, comprise desulfurizing tower, coal gas enters from the bottom of desulfurizing tower then and discharges from the middle and upper part of desulfurizing tower, it is characterized in that, side at desulfurizing tower is provided with the mist pipeline, the first online laser oxygen analyser is set on the mist pipeline, and connect oxygen hose and nitrogen tube respectively by threeway in the outside of mist pipeline, and control valve and stop valve are set respectively in oxygen hose and nitrogen tube, being used for two kinds of gases, two pipeline gas before entering desulfurizing tower mixes, and by controlling the folding extent control gas mixture ratio example of two control valves, the exhaust pipe that is connected with the desulfurizing tower top is communicated on the coal gas discharge line by the cat head suction control valve, the second online laser oxygen analyser is set in exhaust pipe, simultaneously, emergency diffusion valve branch road is set in exhaust pipe.
All control valves, stop valve and online laser oxygen analyser move under the control of center control device.
The beneficial effects of the utility model are: the utility model utilizes nitrogen not participate in the principle of burning, and by nitrogen and oxygen mix, and in conjunction with utilizing laser measuring technology control mixed proportion and reaction density, realizes the coal gas desulfurization effect of Essential Safety.Need transform pipeline, when realizing the environmental protection desulfurization, the oxygen content of control conveying guarantees desulfurized effect safely, and the safety in the desulfurization production technology, and principle is simple, and control is reliable.Oxygen, nitrogen and tail gas automatic disconnecting device are set simultaneously, from the angle realization essential safety of apparatus body safety.
Description of drawings
Fig. 1 is a schematic diagram of the present utility model;
Among the figure: 1 from desulfurizing tower, 21 coal gas to be desulfurization, 22 coal gas discharge lines, 31 mist pipelines, 32 first online laser oxygen analysers, 33 oxygen hoses, 34 nitrogen tube, 41 exhaust pipes, 42 cat head suction control valves, 43 second online laser oxygen analysers, 44 emergency diffusion valves, A1 control valve, A2 stop valve.
The specific embodiment
As Fig. 1, a kind of desulfurizer of being convenient to automation control comprises desulfurizing tower 1, online laser oxygen analyser, by-pass valve control and associated conduit.
Desulfurizing tower is a prior art, adopts the pure oxygen sulfur removal technology to carry out desulfurization.
Below in conjunction with this device sulfur method and process are described in detail:
When going into operation, oxygen pipeline is in closed condition, at first open nitrogen pipeline, nitrogen will be full of in the desulfurizing tower, burn with the sulfur generation chemical reaction of avoiding producing in pure oxygen and the sweetening process, utilize the control valve in the oxygen pipeline to control then, slowly control the unlatching of oxygen, utilize the first online laser oxygen analyser to analyze the ratio of nitrogen and oxygen in the mist, and utilize the opening degree of regulating two control valves to implement control automatically, oxygen content in the control mist, make its purpose that meets stopping reaction, simultaneously, utilize the second online laser oxygen analyser on the exhaust pipe to detect contained oxygen composition in the tail gas, to judge desulfurized effect, it is generally acknowledged that oxygen content is that safety is suitable in the tail gas in scope.Because oxygen oxygen content controlled (can realize) in the mixing duct by the control valve folding degree of regulating oxygen channel, therefore, can guarantee that into the tower Control for Oxygen Content is in certain safe range, in case generation anomaly, the oxygen content that tail gas detects exceeds technology and allows maximum, to control the oxygen cutting valve, directly cut off oxygen, thereby guarantee the safety of system.Can regulate the desulfurizing tower internal pressure by diffusing valve simultaneously, can diffuse automatically, prevent blast in case reach dangerous values.
Embodiment recited above is described preferred implementation of the present utility model; be not that scope of the present utility model is limited; under the prerequisite that does not break away from the utility model design spirit; this area person skilled all should expand as in the determined protection domain of the utility model claims various distortion of the present utility model and improvement.
Claims (2)
1. be convenient to the desulfurizer that automation is controlled for one kind, comprise desulfurizing tower, coal gas enters from the bottom of desulfurizing tower then and discharges from the middle and upper part of desulfurizing tower, it is characterized in that, side at desulfurizing tower is provided with the mist pipeline, the first online laser oxygen analyser is set on the mist pipeline, and connect oxygen hose and nitrogen tube respectively by threeway in the outside of mist pipeline, and control valve and stop valve are set respectively in oxygen hose and nitrogen tube, being used for two kinds of gases, two pipeline gas before entering desulfurizing tower mixes, and by controlling the folding extent control gas mixture ratio example of two control valves, the exhaust pipe that is connected with the desulfurizing tower top is communicated on the coal gas discharge line by the cat head suction control valve, the second online laser oxygen analyser is set in exhaust pipe, simultaneously, emergency diffusion valve branch road is set in exhaust pipe.
2. a kind of desulfurizer of being convenient to automation control according to claim 1 is characterized in that all control valves, stop valve and online laser oxygen analyser move under the control of center control device.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201320115082 CN203090729U (en) | 2013-03-14 | 2013-03-14 | Desulfurization device convenient for automatic control |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201320115082 CN203090729U (en) | 2013-03-14 | 2013-03-14 | Desulfurization device convenient for automatic control |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203090729U true CN203090729U (en) | 2013-07-31 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201320115082 Expired - Fee Related CN203090729U (en) | 2013-03-14 | 2013-03-14 | Desulfurization device convenient for automatic control |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203090729U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103111169A (en) * | 2013-03-14 | 2013-05-22 | 济钢集团有限公司 | Gas desulfurization method and automatically controlled desulfurization device |
-
2013
- 2013-03-14 CN CN 201320115082 patent/CN203090729U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103111169A (en) * | 2013-03-14 | 2013-05-22 | 济钢集团有限公司 | Gas desulfurization method and automatically controlled desulfurization device |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20130731 Termination date: 20170314 |