CN103614504A - Control method of manual and automatic combination control system for open fire diffusion - Google Patents
Control method of manual and automatic combination control system for open fire diffusion Download PDFInfo
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- CN103614504A CN103614504A CN201310518905.3A CN201310518905A CN103614504A CN 103614504 A CN103614504 A CN 103614504A CN 201310518905 A CN201310518905 A CN 201310518905A CN 103614504 A CN103614504 A CN 103614504A
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Abstract
The invention discloses a control method of a manual and automatic combination control system for open fire diffusion. The control system is provided with PLC; a blast furnace gas main pipe and a coke-oven gas main pipe are respectively provided with a manual control valve; a blast furnace gas auxiliary pipe and a coke-oven gas auxiliary pipe are respectively provided with a manual and automatic combination control valve; and the control circuit of the manual and automatic combination control valve is connected with the PLC. The invention also discloses the control method of the control system. By adopting the above technical scheme, the adjustment capability and the strain velocity of the diffusion system to the pressure of a gas main are improved through the WINCC program software configuration frame of an industrial control computer and the PLC system in order to maintain the pressure of the main in a range satisfying technological requirements.
Description
Technical field
The invention belongs to the technical field of metallurgical industry production control, relate to blast furnace gas naked light and diffuse control techniques, more particularly, the present invention relates to the control method that a kind of naked light diffuses the Controlling System of hand control and automation combination.
Background technology
In the prior art, blast furnace gas naked light diffuses conventional hand control and automation Controlling System, can not be well according to the pressure that need to adjust gas main road of technique and the coal gas amount of diffusing.
At naked light, diffuse in technique, the valve of adjusting on gas main road comprises house steward's valve that size is large and the little coal gas bypath valve of size; Generally after the adjustment of gas main pressure, change not quite, only need to adjust a little coal gas by-pass valve can realize requirement; If valve is all under auto state, total pipeline valve and by-pass valve all can with very high frequency action ，Dui topworks particularly house steward's valve actuator damage very large; If valve is all under manual mode, manually input is frequent, cannot reach and save manpower requirement.
Summary of the invention
The invention provides Controlling System and control method that a kind of naked light diffuses hand control and automation combination, its objective is better assurance gas main pressure-stabilisation.
To achieve these goals, the technical scheme that the present invention takes is:
Naked light of the present invention diffuses the Controlling System of hand control and automation combination, be applied to naked light diffusing facility, described naked light diffusing facility comprises diffusing tower, and described diffusing tower is communicated with blast furnace gas main pipeline, coke-oven gas main pipeline, blast furnace gas subsidiary conduit and coke-oven gas subsidiary conduit respectively; Described Controlling System is provided with PLC; On described blast furnace gas main pipeline, coke-oven gas main pipeline, be respectively equipped with manual control valve; Described blast furnace gas subsidiary conduit and coke-oven gas subsidiary conduit are provided with hand control and automation in conjunction with by-pass valve control; Described hand control and automation is connected with described PLC in conjunction with the pilot circuit of by-pass valve control.
On described blast furnace gas main pipeline, coke-oven gas main pipeline, in parallel with described manual control valve, hand control and automation is set respectively in conjunction with by-pass valve control, this hand control and automation is connected with described PLC in conjunction with the pilot circuit of by-pass valve control.
Or, only on described blast furnace gas main pipeline, being arranged in parallel hand control and automation with described manual control valve and being combined by-pass valve control, this hand control and automation is connected with described PLC in conjunction with the pilot circuit of by-pass valve control.
Described blast furnace gas main pipeline is provided with water seal, and described water seal is located between manual control valve and diffusing tower.
Described blast furnace gas main pipeline is communicated with purging nitrogen pipeline, and the position of its connection is located between manual control valve and water seal.
Described purging nitrogen pipeline is provided with hand control and automation in conjunction with by-pass valve control, and described hand control and automation is connected with described PLC in conjunction with the pilot circuit of by-pass valve control.
Described coke-oven gas main pipeline is provided with water seal, and described water seal is located between manual control valve and diffusing tower.
Described coke-oven gas main pipeline is provided with hand control and automation in conjunction with by-pass valve control, on the pipeline of the airintake direction of the manual control valve described in this hand control and automation is located in conjunction with by-pass valve control.
Described Controlling System is provided with industrial control computer and is connected by signal circuit with described PLC; Described industrial control computer is provided with interactive touch control display screen.
In order to realize the goal of the invention identical with technique scheme, the present invention also provides the Controlling System that above-described naked light diffuses hand control and automation combination to adopt control method, and its technical scheme is:
First, on touch display screen, select control mode manually or automatically;
After selecting manual control mode, manual control valve and hand control and automation are carried out to manual input operation in conjunction with by-pass valve control;
After selecting automatic operation scheme, open ignition system valve;
Carry out after ignition operation, whether successful by the known igniting of diffusion mouth temperature in touch display screen figure;
After lighting a fire successfully, in gas main valve opening, set in hurdle and input an opening value, make gas main Pressure Drop to required pressure value, make pressure value stable;
By bypath valve, pipeline pressure is adjusted automatically afterwards;
Under emergency, can click manual operation hurdle, manually input the switching of gas valve aperture and all the other valves.
The present invention adopts technique scheme, by WINCC program software configuration picture and the PLC system of industrial computer, promotes diffusion system to the adjustment capability of gas main pressure and rate of straining, and house steward's pressure is remained within the scope of processing requirement.
Accompanying drawing explanation
Fig. 1 is the Controlling System operation picture view that naked light of the present invention diffuses hand control and automation combination.
Embodiment
Contrast accompanying drawing below, the description by embodiment, is described in further detail the specific embodiment of the present invention, to help those skilled in the art to have more complete, accurate and deep understanding to inventive concept of the present invention, technical scheme.
The control interface that automatically, manually moves of the present invention as represented in Fig. 1, for a kind of naked light diffuses the Controlling System of hand control and automation combination.Be applied to naked light diffusing facility, described naked light diffusing facility comprises diffusing tower, and described diffusing tower is communicated with blast furnace gas main pipeline, coke-oven gas main pipeline, blast furnace gas subsidiary conduit and coke-oven gas subsidiary conduit respectively.The present invention is Controlling System and the corresponding control method of the naked light diffusion system that more agrees with of a kind of and practical situation.
In order to solve the problem of prior art existence and to overcome its defect, realize the better goal of the invention that guarantees gas main pressure-stabilisation, the technical scheme that the present invention takes is:
As shown in Figure 1, naked light of the present invention diffuses the Controlling System of hand control and automation combination, is provided with PLC; On described blast furnace gas main pipeline, coke-oven gas main pipeline, be respectively equipped with manual control valve; Described blast furnace gas subsidiary conduit and coke-oven gas subsidiary conduit are provided with hand control and automation in conjunction with by-pass valve control; Described hand control and automation is connected with described PLC in conjunction with the pilot circuit of by-pass valve control.
PLC is industrial programmable controller.Described PLC comprises PLC module, PLC program.
Below the example that several valves arrange:
On described blast furnace gas main pipeline, coke-oven gas main pipeline, in parallel with described manual control valve, hand control and automation is set respectively in conjunction with by-pass valve control, this hand control and automation is connected with described PLC in conjunction with the pilot circuit of by-pass valve control.
Or, only on described blast furnace gas main pipeline, being arranged in parallel hand control and automation with described manual control valve and being combined by-pass valve control, this hand control and automation is connected with described PLC in conjunction with the pilot circuit of by-pass valve control.
Can also on described coke-oven gas main pipeline, be provided with hand control and automation in conjunction with by-pass valve control, on the pipeline of the airintake direction of the manual control valve described in this hand control and automation is located in conjunction with by-pass valve control.
In addition, described blast furnace gas main pipeline is communicated with purging nitrogen pipeline, and the position of its connection is located between manual control valve and water seal.On described purging nitrogen pipeline, be provided with hand control and automation in conjunction with by-pass valve control, described hand control and automation is connected with described PLC in conjunction with the pilot circuit of by-pass valve control.
In two main gas valves, total pipeline valve is manual operation, all the other valves all can be realized automatically and the manually operation of combination, the control method that simultaneously comprises hand control and automation operation, can be according to manufacturing technique requirent, adjust at any time the pressure in gas main road, when pressure surge is large, main manual setting; Fluctuation hour is adjusted automatically by by-pass valve, and all the other valves are adjusted automatically according to the technique of diffusion system own.
When auto state, except gas main valve is manual mode, valve opening size is all manually set, and all the other valves are all in auto state; Under manual mode, all valves are all in manual mode.
Described Controlling System is provided with industrial control computer and is connected by signal circuit with described PLC; The interactive touch display screen of described industrial control computer.
This system adopts PLC and system industrial computer to control, and industrial computer comprises conventional configuration industrial computer, display unit and installs and the corresponding WINCC configuration software of PLC system in described industrial computer.
Above-mentioned Controlling System is controlled by PLC system and industrial computer, by the WINCC picture in industrial computer, controls the PLC system that naked light diffuses, and then controls each related valve action, realizes long-range hand control and automation and controls.
Industrial computer picture comprises that gas valve aperture sets hurdle, gas valve open degree feedback hurdle, diffuses flame temperature and detect hurdle, water compensating valve status bar, automaticmanual and switch hurdle, gas pressure warning hurdle etc.
As shown in Figure 1, in the WINCC configuration software in described industrial computer, produce the control interface that meets processing requirement, make each process point in interface, all use corresponding hurdle, and each corresponding hurdle all represents the residing different states of this process point by distinct colors;
In the interface shown in Fig. 1, valve represents by green in opening under state, and valve represents by redness under off status, when valve is positioned at kinestate, by grey, represents; When pressure is normal, by green, represent, during pressure alarm with being alternately flicker of reddish yellow; During hand control and automation condition selecting, what state to become redness in which hurdle in; Temperature display watch shows diffusion system burner port flame temperature; It when igniting hurdle is clicked, is burner igniting.
The corresponding hurdle of each process point parameter in WINCC configuration interface is corresponding one by one with each module input and output point in PLC system.So just realized the program controlled mode of the diffusion system of the hand control and automation combination in industrial computer.
Undesired at blast-furnace gas pressure is blast-furnace gas pressure while reporting to the police, and " the high atmospheric pressure power of igniting is normal " in figure is transformed to " the high atmospheric pressure power of igniting warnings ", and by original green, becomes red and yellow checker demonstration;
Undesired at coke-oven gas pressure is burnt atmospheric pressure while reporting to the police, and " burnt atmospheric pressure is normal " in figure is transformed to " burnt atmospheric pressure warning ", and by original green, becomes red and yellow checker demonstration;
Purging nitrogen pressure undesired, be nitrogen pressure while reporting to the police, " nitrogen pressure is normal " in figure is transformed to " nitrogen pressure warnings ", and by original green, becomes red and yellow checker demonstration.
Above-mentioned redness and yellow checker show, are wherein checker demonstration between two color diagram, replace the normal hurdle of former pressure, easily cause staff's attention, thereby take measures in time.
The present invention adopts technique scheme, by the assistance of industrial computer WINCC software program and PLC system, has promoted the adjustment capability of diffusion system to gas main pressure, has ensured that house steward's pressure remains within the scope of processing requirement.
Described blast furnace gas main pipeline is provided with water seal, and described water seal is located between manual control valve and diffusing tower.
Described coke-oven gas main pipeline is provided with water seal, and described water seal is located between manual control valve and diffusing tower.
Gas line, before burner, is installed water seal, when preventing that gas pressure is too low or stopping coal gas suddenly, tempering occurs.
In order to realize the goal of the invention identical with technique scheme, for the better gas main pressure-stabilisation that guarantees, the control method that Controlling System adopts that the present invention also provides above-described naked light to diffuse hand control and automation combination, its technical scheme is:
First select control mode manually or automatically, select, after automatic operation scheme, to open ignition system valve, after igniting, for opening value of gas main valve setpoint makes gas main Pressure Drop to required pressure value, by bypath valve, pipeline pressure is adjusted automatically afterwards.
Concrete control method is as follows:
First, on touch display screen, select control mode manually or automatically;
After selecting manual control mode, manual control valve and hand control and automation are carried out to manual input operation in conjunction with by-pass valve control;
After selecting automatic operation scheme, open ignition system valve;
Carry out after ignition operation, whether successful by the known igniting of diffusion mouth temperature in touch display screen figure;
After lighting a fire successfully, in gas main valve opening, set in hurdle and input an opening value, make gas main Pressure Drop to required pressure value, make pressure value stable;
By bypath valve, pipeline pressure is adjusted automatically afterwards;
Under emergency, can click manual operation hurdle, manually input the switching of gas valve aperture and all the other valves.
Naked light provided by the invention diffuses the control method of the automatic combination of hand, and described industrial computer display unit shows that naked light diffuses the WINCC interface of each dotted state of technique; In industrial computer WINCC configuration picture, open ignition system valve, after igniting, by known the igniting successfully of diffusion mouth temperature in figure, do not have; After lighting a fire successfully, in gas main valve opening setting hurdle, input an opening value and make gas main Pressure Drop to required pressure value, revising set(ting)value, make pressure-stabilisation near required value, by bypath valve, pipeline pressure is adjusted automatically afterwards.When emergency, can click manual operation hurdle, make it word and become after redness, manually input the switching of gas valve aperture and all the other valves.
By reference to the accompanying drawings the present invention is exemplarily described above; obviously specific implementation of the present invention is not subject to the restrictions described above; as long as adopted the improvement of the various unsubstantialities that method of the present invention design and technical scheme carry out; or without improving, design of the present invention and technical scheme are directly applied to other occasion, all within protection scope of the present invention.
Claims (8)
1. naked light diffuses the control method of the Controlling System of hand control and automation combination, be applied to naked light diffusing facility, described naked light diffusing facility comprises diffusing tower, and described diffusing tower is communicated with blast furnace gas main pipeline, coke-oven gas main pipeline, blast furnace gas subsidiary conduit and coke-oven gas subsidiary conduit respectively;
Described Controlling System is provided with PLC;
On described blast furnace gas main pipeline, coke-oven gas main pipeline, be respectively equipped with manual control valve;
Described blast furnace gas subsidiary conduit and coke-oven gas subsidiary conduit are provided with hand control and automation in conjunction with by-pass valve control;
Described hand control and automation is connected with described PLC in conjunction with the pilot circuit of by-pass valve control;
Described Controlling System is provided with industrial control computer and is connected by signal circuit with described PLC; Described industrial control computer is provided with touch control display screen;
It is characterized in that control method is:
First, on touch display screen, select control mode manually or automatically;
After selecting manual control mode, manual control valve and hand control and automation are carried out to manual input operation in conjunction with by-pass valve control;
After selecting automatic operation scheme, open ignition system valve;
Carry out after ignition operation, whether successful by the known igniting of diffusion mouth temperature in touch display screen figure;
After lighting a fire successfully, in gas main valve opening, set in hurdle and input an opening value, make gas main Pressure Drop to required pressure value, make pressure value stable;
By bypath valve, pipeline pressure is adjusted automatically afterwards;
Under emergency, can click manual operation hurdle, manually input the switching of gas valve aperture and all the other valves.
2. according to control method claimed in claim 1, it is characterized in that: on described blast furnace gas main pipeline, coke-oven gas main pipeline, in parallel with described manual control valve, hand control and automation is set respectively in conjunction with by-pass valve control, this hand control and automation is connected with described PLC in conjunction with the pilot circuit of by-pass valve control.
3. according to control method claimed in claim 1, it is characterized in that: on described blast furnace gas main pipeline, be arranged in parallel hand control and automation with described manual control valve and be combined by-pass valve control, this hand control and automation is connected with described PLC in conjunction with the pilot circuit of by-pass valve control.
4. according to control method claimed in claim 1, it is characterized in that: described blast furnace gas main pipeline is provided with water seal, and described water seal is located between manual control valve and diffusing tower.
5. according to control method claimed in claim 4, it is characterized in that: described blast furnace gas main pipeline is communicated with purging nitrogen pipeline, and the position of its connection is located between manual control valve and water seal.
6. according to control method claimed in claim 5, it is characterized in that: described purging nitrogen pipeline is provided with hand control and automation in conjunction with by-pass valve control, described hand control and automation is connected with described PLC in conjunction with the pilot circuit of by-pass valve control.
7. according to control method claimed in claim 1, it is characterized in that: described coke-oven gas main pipeline is provided with water seal, and described water seal is located between manual control valve and diffusing tower.
8. according to control method claimed in claim 1, it is characterized in that: described coke-oven gas main pipeline is provided with hand control and automation in conjunction with by-pass valve control, on the pipeline of the airintake direction of the manual control valve described in this hand control and automation is located in conjunction with by-pass valve control.
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| CN201310518905.3A CN103614504B (en) | 2013-10-26 | 2013-10-26 | Naked light diffuses the control method of the Controlling System that hand control and automation combines |
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| CN201310518905.3A CN103614504B (en) | 2013-10-26 | 2013-10-26 | Naked light diffuses the control method of the Controlling System that hand control and automation combines |
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Cited By (3)
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| CN107327855A (en) * | 2017-07-26 | 2017-11-07 | 柳州钢铁股份有限公司 | Coal oven dithio-gas is diffused and igniter |
| CN110850906A (en) * | 2019-09-29 | 2020-02-28 | 中国人民解放军63660部队 | Remote gas circuit automatic control system working in strong electromagnetic radiation environment |
| CN112375865A (en) * | 2020-11-30 | 2021-02-19 | 江苏欧亚环保科技有限公司 | Centralized control diffusion ignition device and ignition method thereof |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107327855A (en) * | 2017-07-26 | 2017-11-07 | 柳州钢铁股份有限公司 | Coal oven dithio-gas is diffused and igniter |
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| CN110850906A (en) * | 2019-09-29 | 2020-02-28 | 中国人民解放军63660部队 | Remote gas circuit automatic control system working in strong electromagnetic radiation environment |
| CN112375865A (en) * | 2020-11-30 | 2021-02-19 | 江苏欧亚环保科技有限公司 | Centralized control diffusion ignition device and ignition method thereof |
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