CN204647511U - Anti-surge control device - Google Patents
Anti-surge control device Download PDFInfo
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- CN204647511U CN204647511U CN201520355809.6U CN201520355809U CN204647511U CN 204647511 U CN204647511 U CN 204647511U CN 201520355809 U CN201520355809 U CN 201520355809U CN 204647511 U CN204647511 U CN 204647511U
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Abstract
The utility model discloses a kind of anti-surge control device, comprise support, control cabinet, control cabinet is arranged on cradle top, in control cabinet, filtering pressure reducing valve, multiplexer, pneumatic amplifier, valve positioner, three-way magnetic valve, fast-discharge valve, two-way electromagnetic valve are installed, control cabinet sidewall is arranged the first joint, the second joint, the 3rd joint, the 4th joint, the air outlet of filtering pressure reducing valve is communicated with the suction port of valve positioner by the road, and the air outlet of filtering pressure reducing valve is communicated with the suction port of multiplexer through three-way magnetic valve.The utility model anti-surge control device, employing separate form designs, valve positioner and dependent control element thereof are all arranged in control cabinet, control cabinet can be arranged on that temperature and humidity is stable, vibrationless place, and distance valve is no more than 5m, is separated by control cabinet with valve, the vibration avoided because of actual pipeline causes the damage on equipment and the impact on blast fumance, equipment is not fragile, stable performance, improves blast fumance efficiency.
Description
Technical field
The utility model belongs to blower preventing surge technology field, particularly relates to a kind of anti-surge control device.
Background technique
Blast furnace blower is the core drive equipment in ironmaking processes; for whole iron and steel enterprise; the running state of blower and the output of enterprise, benefit, safety are closely bound up; a most important ring during Anti-surge Control controls as blast furnace blower, surge-proof valve is an important proterctive equipment in blast furnace iron-making process.The control of blast furnace ironmaking blower surge-proof valve and transformation, whether its control effects improves, determine the potential that can give full play to blower to a great extent, for blast furnace provides a safety, stable, efficient wind regime, ensure the utilization factor that blast furnace reaches desirable.
Due to initial in design, valve positioner and and valve body adopt unitary design, object is convenient to install and adjust, but in actual production process to vibration huge hidden danger do not take into full account, thus cause anti-surge valve positioning work piece and circuit gas circuit device damage thereof frequently, cause and produce instability.
Model utility content
The technical problems to be solved in the utility model is to provide a kind of anti-surge control device fragile, not stable and reliable for performance.
For solving the problems of the technologies described above, the utility model adopts following technological scheme:
A kind of anti-surge control device, comprise support, control cabinet, control cabinet is arranged on cradle top, in control cabinet, filtering pressure reducing valve is installed, multiplexer, pneumatic amplifier, valve positioner, three-way magnetic valve, fast-discharge valve, two-way electromagnetic valve, control cabinet sidewall is arranged the first joint, second joint, 3rd joint, 4th joint, the suction port of filtering pressure reducing valve communicates with the first joint, first joint communicates with source of the gas by the road, the air outlet of filtering pressure reducing valve is communicated with the suction port of valve positioner by the road, the air outlet of filtering pressure reducing valve is communicated with the suction port of multiplexer through three-way magnetic valve, the air outlet of filtering pressure reducing valve through one-way valve respectively with the working hole F of multiplexer, the suction port of pneumatic amplifier, 4th fittings, the working hole A of valve positioner is communicated with the working hole A of multiplexer by the road, the working hole B of valve positioner is communicated with the working hole D of multiplexer by the road, the working hole B of multiplexer is communicated with fast-discharge valve by the road, fast-discharge valve is through the first pneumatic tube and the second fittings, two-way electromagnetic valve in parallel on first pneumatic tube, the working hole E of multiplexer is communicated with the control mouth of pneumatic amplifier by the road, air outlet second pneumatic tube of pneumatic amplifier and the 3rd fittings, 3rd joint is communicated with the cavity of resorption of pneumatic actuator by the road, second joint is communicated with the epicoele of pneumatic actuator by the road, 4th joint is communicated with gas holder by the road.
The utility model anti-surge control device, further, the first manual needle valve in parallel on the pipeline of described fast-discharge valve both sides.
The utility model anti-surge control device, further, described second pneumatic tube second manual needle valve in parallel with between the first pneumatic tube.
The utility model anti-surge control device, employing separate form designs, the dependent control element such as valve positioner, filtering pressure reducing valve, multiplexer, pneumatic amplifier, three-way magnetic valve, fast-discharge valve are all arranged in control cabinet, control cabinet can be arranged on that temperature and humidity is stable, vibrationless place, distance valve is no more than 5m, control cabinet is separated with valve, the vibration avoided because of actual pipeline causes the damage on equipment and the impact on blast fumance, equipment is not fragile, stable performance, improves blast fumance efficiency.
Below in conjunction with accompanying drawing, anti-surge control device of the present utility model is described further.
Accompanying drawing explanation
Fig. 1 is the structural representation of the utility model anti-surge control device.
Embodiment
As shown in Figure 1, the utility model anti-surge control device comprises support 1, control cabinet 2, control cabinet 2 is arranged on support 1 top, in control cabinet 2, filtering pressure reducing valve 3 is installed, multiplexer 4, pneumatic amplifier 5, valve positioner 6, three-way magnetic valve 7, fast-discharge valve 8, two-way electromagnetic valve 9, control cabinet 2 sidewall is arranged the first joint 21, second joint 22, 3rd joint 23, 4th joint 24, the suction port of filtering pressure reducing valve 3 communicates with the first joint 21, first joint 21 communicates with source of the gas by the road, the air outlet of filtering pressure reducing valve 3 is communicated with the suction port of valve positioner 6 by the road, the air outlet of filtering pressure reducing valve 3 is communicated with through the suction port of three-way magnetic valve 7 with multiplexer 4, the air outlet of filtering pressure reducing valve 3 through one-way valve 10 respectively with the working hole F of multiplexer 4, the suction port of pneumatic amplifier 5, 4th joint 24 is communicated with, the working hole A of valve positioner 6 is communicated with the working hole A of multiplexer 4 by the road, the working hole B of valve positioner 6 is communicated with the working hole D of multiplexer 4 by the road, the working hole B of multiplexer 4 is communicated with fast-discharge valve 8 by the road, fast-discharge valve 8 is communicated with the second joint 22 through the first pneumatic tube 81, two-way electromagnetic valve 9 in parallel on first pneumatic tube 81, first manual needle valve 82 in parallel on the pipeline of fast-discharge valve 8 both sides, the working hole E of multiplexer 4 is communicated with the control mouth of pneumatic amplifier 5 by the road, air outlet second pneumatic tube 51 of pneumatic amplifier 5 is communicated with the 3rd joint 23, second manual needle valve 52 in parallel between second pneumatic tube 51 with the first pneumatic tube 81.
Second joint 22 is communicated with the epicoele of pneumatic actuator 25 by the road, and the 3rd joint 23 is communicated with the cavity of resorption of pneumatic actuator 25 by the road, and the 4th joint 24 is communicated with gas holder 26 by the road.
Valve positioner 6 can adopt DVC6000 series of positioners.Valve positioner 6 is electrically connected with signal adapter 61, and signal adapter 61 is electrically connected with PLC (not shown).
Pneumatic actuator 25 adopts single piston-cylinder.Pneumatic actuator 25 and valve 27 adopt unitary design, and valve can adopt butterfly valve, and this part is prior art, does not repeat them here.
The effect of the first manual needle valve 82 reduces valve vibration.Use when second manual needle valve 52 overhauls, for balancing the pressure in the upper and lower chamber of pneumatic actuator.
The function of the utility model anti-surge control device realizes under normal circumstances, to the accurate control of valve position of valve, changing down pass soon; In case of emergency (lose gas, dead electricity) and open valve fast to protect blower fan.
The working procedure of the utility model anti-surge control device is:
Under normal circumstances, two-way electromagnetic valve 9 and three-way magnetic valve 7 charged, working hole A and the working hole B of three-way magnetic valve 7 communicate, the working hole A of two-way electromagnetic valve 9 and working hole B disconnects, at this moment air is divided into three tunnels after reduction valve 3 after filtration, the working hole F, pneumatic amplifier 5, the gas holder 26 that are clipped to multiplexer 4, through one-way valve 10, are then divided in one tunnel; One tunnel after three-way magnetic valve 7, to the suction port of multiplexer 4, gas compression multiplexer contained spring, like this in multiplexer inner air path, working hole A and working hole B communicates, and working hole D and working hole E communicates; Another road to the suction port of valve positioner 6, as the source of the gas of valve positioner 6.When the control signal that PLC outputs to valve positioner 6 increases, the working hole A of valve positioner 6 exports and increases, working hole B exports reduction, and the working hole A air pressure of increase acts on pneumatic actuator 25 epicoele after working hole A, the B, fast-discharge valve 8 of multiplexer 4; The air pressure of working hole B through working hole D, E of multiplexer 4 to the control mouth of pneumatic amplifier 5, as the input signal of pneumatic amplifier 5, control the pressure that pneumatic amplifier 5 outputs to pneumatic actuator 25 cavity of resorption, at this moment, the pressure of pneumatic actuator 25 epicoele is greater than pressure and the power of pipeline Action of Wind pressure on butterfly plate of cavity of resorption, piston down moves, and valve 27 opening degree reduces.Otherwise when the control signal that PLC outputs to valve positioner 6 reduces, the working hole A of valve positioner 6 exports and reduces, working hole B exports increase, at this moment owing to there being the effect of fast-discharge valve 8 and pneumatic amplifier 5, piston up moves fast, and valve 27 realizes opening soon.
When two-way electromagnetic valve 9, during three-way magnetic valve 7 dead electricity, working hole A and the working hole C of three-way magnetic valve 7 communicate, the working hole A of two-way electromagnetic valve 9, B communicates, at this moment the pressure of the suction port of multiplexer 4 is laid down through three-way magnetic valve 7 working hole C, multiplexer 4 is under the effect of contained spring, gas circuit changes, working hole B and working hole C communicates, working hole E and working hole F communicates, gas in gas holder 26 adds that the gas of source of the gas is through multiplexer 4 working hole F, E is as the control signal of pneumatic amplifier 5, because the air pressure of at this moment gas holder 26 is very high, be equal to the outlet pressure of filtering pressure reducing valve 3, make pneumatic amplifier 5 standard-sized sheet, the gas that gas holder is 26 li and the gas of source of the gas enter pneumatic actuator 25 cavity of resorption with peak rate of flow through pneumatic amplifier 5, the gas of epicoele is through fast-discharge valve 8, two-way electromagnetic valve 9 is fast discharged to air, valve 27 is opened fast.
When losing gas, owing to there being the existence of one-way valve 10, make the unlikely refluence of the pressurized air in gas holder 26, whole principle is identical with dead electricity, the pressurized air only had in gas holder just making valve open soon.
The utility model anti-surge control device, employing separate form designs, the dependent control element such as valve positioner, filtering pressure reducing valve, multiplexer, pneumatic amplifier, three-way magnetic valve, fast-discharge valve are all arranged in control cabinet, control cabinet can be arranged on that temperature and humidity is stable, vibrationless place, distance valve is no more than 5m, control cabinet is separated with valve, the vibration avoided because of actual pipeline causes the damage on equipment and the impact on blast fumance, equipment is not fragile, stable performance, improves blast fumance efficiency.
Above-described embodiment is described preferred implementation of the present utility model; not scope of the present utility model is limited; under the prerequisite not departing from the utility model design spirit; the various distortion that those of ordinary skill in the art make the technical solution of the utility model and improvement, all should fall in protection domain that the utility model claims determine.
Claims (3)
1. an anti-surge control device, it is characterized in that: comprise support, control cabinet, control cabinet is arranged on cradle top, in control cabinet, filtering pressure reducing valve is installed, multiplexer, pneumatic amplifier, valve positioner, three-way magnetic valve, fast-discharge valve, two-way electromagnetic valve, control cabinet sidewall is arranged the first joint, second joint, 3rd joint, 4th joint, the suction port of filtering pressure reducing valve communicates with the first joint, first joint communicates with source of the gas by the road, the air outlet of filtering pressure reducing valve is communicated with the suction port of valve positioner by the road, the air outlet of filtering pressure reducing valve is communicated with the suction port of multiplexer through three-way magnetic valve, the air outlet of filtering pressure reducing valve through one-way valve respectively with the working hole F of multiplexer, the suction port of pneumatic amplifier, 4th fittings, the working hole A of valve positioner is communicated with the working hole A of multiplexer by the road, the working hole B of valve positioner is communicated with the working hole D of multiplexer by the road, the working hole B of multiplexer is communicated with fast-discharge valve by the road, fast-discharge valve is through the first pneumatic tube and the second fittings, two-way electromagnetic valve in parallel on first pneumatic tube, the working hole E of multiplexer is communicated with the control mouth of pneumatic amplifier by the road, air outlet second pneumatic tube of pneumatic amplifier and the 3rd fittings, 3rd joint is communicated with the cavity of resorption of pneumatic actuator by the road, second joint is communicated with the epicoele of pneumatic actuator by the road, 4th joint is communicated with gas holder by the road.
2. anti-surge control device according to claim 1, is characterized in that: the first manual needle valve in parallel on the pipeline of described fast-discharge valve both sides.
3. anti-surge control device according to claim 2, is characterized in that: described second pneumatic tube second manual needle valve in parallel with between the first pneumatic tube.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520355809.6U CN204647511U (en) | 2015-05-28 | 2015-05-28 | Anti-surge control device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520355809.6U CN204647511U (en) | 2015-05-28 | 2015-05-28 | Anti-surge control device |
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| Publication Number | Publication Date |
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| CN204647511U true CN204647511U (en) | 2015-09-16 |
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| CN201520355809.6U Active CN204647511U (en) | 2015-05-28 | 2015-05-28 | Anti-surge control device |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105714007A (en) * | 2016-05-05 | 2016-06-29 | 开封中化换热设备有限公司 | Compressing fan oxygen supply device and blast-furnace smelting system using oxygen supply device |
| CN107120465A (en) * | 2017-06-23 | 2017-09-01 | 重庆阿卡雷科技有限公司 | Gas circuit positive pressure protection system and single-acting operated pneumatic valve cylinder |
| CN110966456A (en) * | 2018-09-30 | 2020-04-07 | 上海梅山钢铁股份有限公司 | Air filtering differential pressure overrun protector for blast furnace blower |
| CN111220204A (en) * | 2018-11-26 | 2020-06-02 | 上海梅山钢铁股份有限公司 | Prevent breathing heavily regulation control system mistake proofing detection device |
-
2015
- 2015-05-28 CN CN201520355809.6U patent/CN204647511U/en active Active
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105714007A (en) * | 2016-05-05 | 2016-06-29 | 开封中化换热设备有限公司 | Compressing fan oxygen supply device and blast-furnace smelting system using oxygen supply device |
| CN107120465A (en) * | 2017-06-23 | 2017-09-01 | 重庆阿卡雷科技有限公司 | Gas circuit positive pressure protection system and single-acting operated pneumatic valve cylinder |
| CN107120465B (en) * | 2017-06-23 | 2019-03-05 | 重庆驭虹智能科技有限公司 | Gas circuit positive pressure protection system and single-acting operated pneumatic valve cylinder |
| CN110966456A (en) * | 2018-09-30 | 2020-04-07 | 上海梅山钢铁股份有限公司 | Air filtering differential pressure overrun protector for blast furnace blower |
| CN110966456B (en) * | 2018-09-30 | 2022-04-15 | 上海梅山钢铁股份有限公司 | Air filtering differential pressure overrun protector for blast furnace blower |
| CN111220204A (en) * | 2018-11-26 | 2020-06-02 | 上海梅山钢铁股份有限公司 | Prevent breathing heavily regulation control system mistake proofing detection device |
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