CN102091507A - Method for prolonging service life of spray tower - Google Patents
Method for prolonging service life of spray tower Download PDFInfo
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- CN102091507A CN102091507A CN2010106079733A CN201010607973A CN102091507A CN 102091507 A CN102091507 A CN 102091507A CN 2010106079733 A CN2010106079733 A CN 2010106079733A CN 201010607973 A CN201010607973 A CN 201010607973A CN 102091507 A CN102091507 A CN 102091507A
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- 239000007921 spray Substances 0.000 title claims abstract description 104
- 238000000034 method Methods 0.000 title claims abstract description 16
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 45
- 238000002347 injection Methods 0.000 claims description 25
- 239000007924 injection Substances 0.000 claims description 25
- 238000005507 spraying Methods 0.000 claims description 16
- 230000001105 regulatory effect Effects 0.000 claims description 15
- 238000001816 cooling Methods 0.000 claims description 14
- 238000005260 corrosion Methods 0.000 abstract description 8
- 230000007797 corrosion Effects 0.000 abstract description 8
- 230000000694 effects Effects 0.000 abstract description 4
- 230000004087 circulation Effects 0.000 description 7
- UGFAIRIUMAVXCW-UHFFFAOYSA-N Carbon monoxide Chemical compound [O+]#[C-] UGFAIRIUMAVXCW-UHFFFAOYSA-N 0.000 description 5
- 238000005516 engineering process Methods 0.000 description 5
- 239000003546 flue gas Substances 0.000 description 5
- 239000002253 acid Substances 0.000 description 4
- 238000010586 diagram Methods 0.000 description 2
- 239000007788 liquid Substances 0.000 description 2
- 239000003595 mist Substances 0.000 description 2
- NINIDFKCEFEMDL-UHFFFAOYSA-N Sulfur Chemical group [S] NINIDFKCEFEMDL-UHFFFAOYSA-N 0.000 description 1
- 230000002378 acidificating effect Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000000903 blocking effect Effects 0.000 description 1
- 230000015556 catabolic process Effects 0.000 description 1
- 238000006477 desulfuration reaction Methods 0.000 description 1
- 230000023556 desulfurization Effects 0.000 description 1
- 239000000428 dust Substances 0.000 description 1
- 230000003628 erosive effect Effects 0.000 description 1
- 238000010438 heat treatment Methods 0.000 description 1
- 238000005245 sintering Methods 0.000 description 1
- 229910052717 sulfur Inorganic materials 0.000 description 1
- 239000011593 sulfur Substances 0.000 description 1
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Abstract
The invention relates to a method for prolonging the service life of a spray tower. The spray tower comprises three groups of electromagnetic valves (11, 12 and 13) controlled by a programmable logic controller (PLC), wherein the three groups of electromagnetic valves (11, 12 and 13) control the opening and closing of a water spray wave and a gas spray valve; and a circulating control module is designed in the PLC controller to realize the control of the three groups of electromagnetic valves (11, 12 and 13) over the spray valves as the first group of electromagnetic valve in turn. In the method, a command can be given automatically according to a preset time value, and the groups of electromagnetic valves are used in turn to avoid excessive corrosion of the spray valves and spray tower wall on a certain side; and on the other hand, the PLC can change the ratio of a water pressure to a gas pressure automatically to realize a better atomizing effect.
Description
One, technical field
The invention belongs to automatic control desulfurization dust guard pollution abatement equipment field, relate in particular to a kind of spray column method in service life that prolongs.
Two, background technology
Existing spray atomising device comprises the water spray magnetic valve, jet magnetic valve, force (forcing) pump, Pressure gauge, flowmeter, automatic regulating valve, when flue-gas temperature surpasses setting value, after obtaining instructing, sends by the PLC controller information of opening first group of water injection valve and snifting valve, valve opening solenoid breakdown beginning spray, reach the effect that cools, it is three groups that six magnetic valves are divided into, become equilateral triangle to distribute, when reaching 130, flue-gas temperature opens first group of magnetic valve when spending, temperature reaches 150 and opens second group of magnetic valve when spending again, temperature reaches 180 whole three groups of magnetic valves when spending all to be opened, and carries out spraying cooling.Existing control technology has following shortcoming: 1, sintering temperature is generally spent to 160 degree 140, and first group of moving time of opening of valves is maximum, and all the other two groups of valve bases are not originally opened, spray Long-time Shut-down, easy plug nozzle after the corrosion; 2, sulfur-bearing in the baking flue gas, have after the atomizing and can generate a kind of weak acid with flue gas, pH value is less than 4, this kind acid mist causes the spray column wall erosion easily, and first group of valve opening time is the longest, and the acid mist that this side produces is maximum, then makes the tower wall utmost point corrosion of nearly first group of spraying electromagnetic valve, actual conditions still have 10mm thickness for the back opposite Ta Bi that bored a hole near first group of magnetic valve, not corrosion substantially; 3, can't change the ratio of hydraulic pressure and air pressure in the existing control instruction, can't reach the atomizing optimum efficiency, spray water excessive after, form acidic liquid in the spray column bottom, bottom spray column, bigger corrosion is arranged, spraying water promptly can't cool flue gas inadequately; 4, be the normal open valve based on the former design magnetic valve of emergent consideration that has a power failure, switch on for a long time during closed electromagnetic valve that the electromagnetic valve coil heating burns out extremely easily.Therefore, inventing a kind of new control technology has been the industry active demand with the service life that prolongs spray column.
Three, summary of the invention
Technical problem to be solved by this invention provides a kind of automatic control technology of spray column, can send instruction automatically according to the Preset Time value, uses in turn and respectively organizes magnetic valve, avoids the shower valve and the spray column wall excessive corrosion of a certain side; The PLC controller can change the ratio of hydraulic pressure and air pressure automatically on the other hand, makes atomizing effect better.
The purpose of the present invention for realizing solving the problems of the technologies described above, concrete technical scheme is: a kind of spray column method in service life that prolongs, described spray column comprises the three groups of magnetic valves (11,12,13) by the control of PLC controller, three groups of magnetic valves (11,12,13) opening and closing of control water injection valve and snifting valve, design one loop control module realizes three groups of magnetic valves (11 in the PLC controller, 12,13) open or close as first group of solenoid control shower valve in order:
When spray column was started working, magnetic valve (11) was first group of magnetic valve, and magnetic valve (12) is second group of magnetic valve, and magnetic valve (13) is the 3rd a group of magnetic valve;
Through Preset Time S
1After, the PLC controller sends adjusts instruction, and magnetic valve (12) is first group of magnetic valve, and magnetic valve (13) is second group of magnetic valve, and magnetic valve (11) is the 3rd a group of magnetic valve;
Through Preset Time S
2After, the PLC controller sends once more adjusts instruction, and magnetic valve (13) is first group of magnetic valve, and magnetic valve (11) is second group of magnetic valve, and magnetic valve (12) is the 3rd a group of magnetic valve;
Through Preset Time S
3After, each is organized magnetic valve and is back to reset condition.
The present invention further technical scheme is when the spray column temperature reaches 120～150 ℃, and the PLC controller instructs first group of magnetic valve to open water injection valve and snifting valve; When the spray column temperature reached 150～180 ℃, the PLC controller instructed first group, second group magnetic valve to open water injection valve and snifting valve simultaneously; When the spray column temperature reached more than 180 ℃, the PLC controller instructed whole three groups of magnetic valves to open water injection valve and snifting valve, carries out spraying cooling.
The present invention further technical scheme is described Preset Time S
1, S
2, S
3Equal or unequal.
The present invention further technical scheme be respectively organize the working electromagnet valve at interval 30～60 minutes instruction water injection valves and snifting valve open once, water spray and jet time are 5～10 seconds.
The present invention further technical scheme is that proportion control between air pressure, hydraulic pressure, automatic regulating valve aperture value of feedback three is set in described PLC controller.
The present invention further technical scheme is the ratio automatic or manual adjusting as required of described air pressure and hydraulic pressure.
The present invention further technical scheme is that the ratio of described air pressure and hydraulic pressure is 4: 3.
The present invention further technical scheme is to install a manually-operated gate additional in three groups of magnetic valves (11,12,13) arbitrary group.
The invention has the beneficial effects as follows:
1, three groups of solenoid cycles open, and water spray has evenly been avoided the spray valve head of a certain side and spray column wall excessive corrosion and the spray valve head and the free from corrosion substantially phenomenon of spray column wall of opposite side.
2, each jet and the water spray magnetic valve every about half an hour, jet once, avoided two groups of valve not conductings for a long time, the shower nozzle phenomenon of blocking.
3, adopt PID to control automatically, can regulate the ratio of hydraulic pressure and air pressure automatically, and when the ratio of hydraulic pressure and air pressure is 4: 3 atomizing effect the best; Shower water all gasifies simultaneously, can not have liquid acid in the spray column bottom.
4, the normal open valve replacement is a normally close valve, has avoided electromagnetic valve coil charged for a long time, the electromagnetic valve coil scaling loss.
Four, description of drawings
Fig. 1 is the schematic diagram of three groups of magnetic valves.
Fig. 2 is the fundamental diagram of spray column spraying cooling.
Five, the specific embodiment
Below in conjunction with drawings clear, intactly describe the specific embodiment of the present invention.
A kind of spray column method in service life that prolongs, described spray column comprises three groups of magnetic valves 11 by the control of PLC controller, 12,13, three groups of magnetic valves 11,12, the opening and closing of 13 control water injection valves and snifting valve, design one loop control module realizes that three groups of magnetic valves 11,12,13 control in order in the PLC controller:
When spray column was started working, magnetic valve 11 was first group of magnetic valve, and magnetic valve 12 is second group of magnetic valve, and magnetic valve 13 is the 3rd a group of magnetic valve;
Through Preset Time S
1After, the PLC controller sends adjusts instruction, and magnetic valve 12 is first group of magnetic valve, and magnetic valve 13 is second group of magnetic valve, and magnetic valve 11 is the 3rd a group of magnetic valve;
Through Preset Time S
2After, the PLC controller sends once more adjusts instruction, and magnetic valve 13 is first group of magnetic valve, and magnetic valve 11 is second group of magnetic valve, and magnetic valve 12 is the 3rd a group of magnetic valve;
Through Preset Time S
3After, each is organized magnetic valve and is back to reset condition.
Described Preset Time S
1, S
2, S
3Equal or unequal.
When the spray column temperature reached 120～150 ℃, the PLC controller instructed first group of magnetic valve to open water injection valve and snifting valve; When the spray column temperature reached 150～180 ℃, the PLC controller instructed first group, second group magnetic valve to open water injection valve and snifting valve simultaneously; When the spray column temperature reached more than 180 ℃, the PLC controller instructed whole three groups of magnetic valves to open water injection valve and snifting valve, carries out spraying cooling.
Each organize the working electromagnet valve at interval 30～60 minutes instruction water injection valves and snifting valve open once, water spray and jet time are 5～10 seconds.
Proportion control between air pressure, hydraulic pressure, automatic regulating valve aperture value of feedback three is set in described PLC controller.The ratio of described air pressure and hydraulic pressure automatic or manual is as required regulated.The ratio of described air pressure and hydraulic pressure is 4: 3.
In in three groups of magnetic valves 11,12,13 arbitrary group, install a manually-operated gate additional.
Embodiment 1:
As shown in Figure 1, spray column comprises three groups of magnetic valves 11,12 by the control of PLC controller, 13, three groups of magnetic valves 11,12,13 are controlled the opening and closing of water injection valves and snifting valve, design one loop control module realizes three groups of magnetic valves 11 in the PLC controller, 12,13 controls in order: when spray column was started working, magnetic valve 11 was first group of magnetic valve, magnetic valve 12 is second group of magnetic valve, and magnetic valve 13 is the 3rd a group of magnetic valve; After four hours, the PLC controller sends adjusts instruction, and magnetic valve 12 is first group of magnetic valve, and magnetic valve 13 is second group of magnetic valve, and magnetic valve 11 is the 3rd a group of magnetic valve; After eight hours, the PLC controller sends once more adjusts instruction, and magnetic valve 13 is first group of magnetic valve, and magnetic valve 11 is second group of magnetic valve, and magnetic valve 12 is the 3rd a group of magnetic valve; After 12 hours, each is organized magnetic valve and is back to reset condition, and promptly magnetic valve 11 is first group of magnetic valve, and magnetic valve 12 is second group of magnetic valve, and magnetic valve 13 is the 3rd a group of magnetic valve.
When temperature in the spray column reaches 130 ℃, the instruction of PLC controller is in the magnetic valve of first group of magnetic valve state and opens shower valve, carry out spraying cooling, the condition of opening two groups or three groups shower valves when as long as temperature does not reach default in the tower, just according to Preset Time four hours, eight hours respectively electromagnetic valve of instruction 12, magnetic valve 13 carry out work, it is in running order to have remained one group of magnetic valve.
Each organizes the working electromagnet valve every 30 minutes instruction shower valve water sprays and once jet, and each spray time was 5 seconds, and the ratio of regulating air pressure and hydraulic pressure is 4: 3.
Embodiment 2:
As shown in Figure 1, spray column comprises three groups of magnetic valves 11,12 by the control of PLC controller, 13, three groups of magnetic valves 11,12,13 are controlled the opening and closing of water injection valves and snifting valve, design one loop control module realizes three groups of magnetic valves 11 in the PLC controller, 12,13 in order control enter duty: when spray column was started working, magnetic valve 11 was first group of magnetic valve, magnetic valve 12 is second group of magnetic valve, and magnetic valve 13 is the 3rd a group of magnetic valve; After four hours, the PLC controller sends adjusts instruction, and magnetic valve 12 is first group of magnetic valve, and magnetic valve 13 is second group of magnetic valve, and magnetic valve 11 is the 3rd a group of magnetic valve; After eight hours, the PLC controller sends once more adjusts instruction, and magnetic valve 13 is first group of magnetic valve, and magnetic valve 11 is second group of magnetic valve, and magnetic valve 12 is the 3rd a group of magnetic valve; After 12 hours, each is organized magnetic valve and is back to reset condition, and promptly magnetic valve 11 is first group of magnetic valve, and magnetic valve 12 is second group of magnetic valve, and magnetic valve 13 is the 3rd a group of magnetic valve.
When temperature in the spray column reaches 120 ℃, the instruction of PLC controller is in the magnetic valve of first group of magnetic valve state and opens shower valve, carry out spraying cooling, the condition of opening two groups or three groups shower valves when as long as temperature does not reach default in the tower, just according to Preset Time four hours, eight hours respectively electromagnetic valve of instruction 12, magnetic valve 13 carry out work, it is in running order to have remained one group of magnetic valve.
Each organizes the working electromagnet valve every 40 minutes instruction shower valve water sprays and once jet, and each spray time was 8 seconds, and the ratio of regulating air pressure and hydraulic pressure is 4: 3.
Embodiment 3:
As shown in Figure 1, spray column comprises three groups of magnetic valves 11,12 by the control of PLC controller, 13, three groups of magnetic valves 11,12,13 are controlled the opening and closing of water injection valves and snifting valve, design one loop control module realizes three groups of magnetic valves 11 in the PLC controller, 12,13 circulations are first group of magnetic valve in turn: when spray column was started working, magnetic valve 11 was first group of magnetic valve, magnetic valve 12 is second group of magnetic valve, and magnetic valve 13 is the 3rd a group of magnetic valve; After four hours, the PLC controller sends adjusts instruction, and magnetic valve 12 is first group of magnetic valve, and magnetic valve 13 is second group of magnetic valve, and magnetic valve 11 is the 3rd a group of magnetic valve; After eight hours, the PLC controller sends once more adjusts instruction, and magnetic valve 13 is first group of magnetic valve, and magnetic valve 11 is second group of magnetic valve, and magnetic valve 12 is the 3rd a group of magnetic valve; After 12 hours, each is organized magnetic valve and is back to reset condition, and promptly magnetic valve 11 is first group of magnetic valve, and magnetic valve 12 is second group of magnetic valve, and magnetic valve 13 is the 3rd a group of magnetic valve.
When temperature in the spray column reaches 150 ℃, the instruction of PLC controller is in the magnetic valve of first group and second group magnetic valve state and opens shower valve simultaneously, carry out spraying cooling, the condition of opening three groups of shower valves when as long as temperature does not reach default in the tower, just sent respectively in four hours, eight hours and adjust instruction according to Preset Time, change the duty of respectively organizing magnetic valve, it is in running order to have remained two groups of magnetic valves.
Each organizes the working electromagnet valve every 30 minutes instruction shower valve water sprays and once jet, and each spray time was 5 seconds, and the ratio of regulating air pressure and hydraulic pressure is 4: 3.
Embodiment 4:
As shown in Figure 1, spray column comprises three groups of magnetic valves 11,12 by the control of PLC controller, 13, three groups of magnetic valves 11,12,13 are controlled the opening and closing of water injection valves and snifting valve, design one loop control module realizes three groups of magnetic valves 11 in the PLC controller, 12,13 circulations are first group of magnetic valve in turn: when spray column was started working, magnetic valve 11 was first group of magnetic valve, magnetic valve 12 is second group of magnetic valve, and magnetic valve 13 is the 3rd a group of magnetic valve; After four hours, the PLC controller sends adjusts instruction, and magnetic valve 12 is first group of magnetic valve, and magnetic valve 13 is second group of magnetic valve, and magnetic valve 11 is the 3rd a group of magnetic valve; After eight hours, the PLC controller sends once more adjusts instruction, and magnetic valve 13 is first group of magnetic valve, and magnetic valve 11 is second group of magnetic valve, and magnetic valve 12 is the 3rd a group of magnetic valve; After 12 hours, each is organized magnetic valve and is back to reset condition, and promptly magnetic valve 11 is first group of magnetic valve, and magnetic valve 12 is second group of magnetic valve, and magnetic valve 13 is the 3rd a group of magnetic valve.
When temperature in the spray column reaches 160 ℃, the instruction of PLC controller is in the magnetic valve of first group and second group magnetic valve state and opens shower valve simultaneously, carry out spraying cooling, the condition of opening three groups of shower valves when as long as temperature does not reach default in the tower, just sent respectively in four hours, eight hours and adjust instruction according to Preset Time, change the duty of respectively organizing magnetic valve, it is in running order to have remained two groups of magnetic valves.
Each organizes the working electromagnet valve every 50 minutes instruction shower valve water sprays and once jet, and each spray time was 8 seconds, and the ratio of regulating air pressure and hydraulic pressure is 4: 3.
Embodiment 5:
As shown in Figure 1, spray column comprises three groups of magnetic valves 11,12 by the control of PLC controller, 13, three groups of magnetic valves 11,12,13 are controlled the opening and closing of water injection valves and snifting valve, design one loop control module realizes three groups of magnetic valves 11 in the PLC controller, 12,13 circulations are first group of magnetic valve in turn: when spray column was started working, magnetic valve 11 was first group of magnetic valve, magnetic valve 12 is second group of magnetic valve, and magnetic valve 13 is the 3rd a group of magnetic valve; After four hours, the PLC controller sends adjusts instruction, and magnetic valve 12 is first group of magnetic valve, and magnetic valve 13 is second group of magnetic valve, and magnetic valve 11 is the 3rd a group of magnetic valve; After eight hours, the PLC controller sends once more adjusts instruction, and magnetic valve 13 is first group of magnetic valve, and magnetic valve 11 is second group of magnetic valve, and magnetic valve 12 is the 3rd a group of magnetic valve; After 12 hours, each is organized magnetic valve and is back to reset condition, and promptly magnetic valve 11 is first group of magnetic valve, and magnetic valve 12 is second group of magnetic valve, and magnetic valve 13 is the 3rd a group of magnetic valve.
When temperature in the spray column reaches 180 ℃, the PLC controller instructs three groups of magnetic valves to open shower valve simultaneously, carry out spraying cooling, as long as temperature does not drop to the condition that only needs to open two groups of valves or one group of valve in the tower, just keep three groups of magnetic valves 11,12,13 is simultaneously in running order, when temperature in the tower drops to the condition that only needs two groups of valves of unlatching or one group of valve, just according to Preset Time four hours, sent respectively in eight hours and adjust instruction, change the duty respectively organize magnetic valve, open the shower valve of respective numbers according to opening one group or the requirement of opening two groups of magnetic valves simultaneously.
Each organizes the working electromagnet valve every 30 minutes instruction shower valve water sprays and once jet, and each spray time was 8 seconds, and the ratio of regulating air pressure and hydraulic pressure is 4: 3.
Embodiment 6:
As shown in Figure 1, spray column comprises three groups of magnetic valves 11,12 by the control of PLC controller, 13, three groups of magnetic valves 11,12,13 are controlled the opening and closing of water injection valves and snifting valve, design one loop control module realizes three groups of magnetic valves 11 in the PLC controller, 12,13 circulations are first group of magnetic valve in turn: when spray column was started working, magnetic valve 11 was first group of magnetic valve, magnetic valve 12 is second group of magnetic valve, and magnetic valve 13 is the 3rd a group of magnetic valve; After four hours, the PLC controller sends adjusts instruction, and magnetic valve 12 is first group of magnetic valve, and magnetic valve 13 is second group of magnetic valve, and magnetic valve 11 is the 3rd a group of magnetic valve; After eight hours, the PLC controller sends once more adjusts instruction, and magnetic valve 13 is first group of magnetic valve, and magnetic valve 11 is second group of magnetic valve, and magnetic valve 12 is the 3rd a group of magnetic valve; After 12 hours, each is organized magnetic valve and is back to reset condition, and promptly magnetic valve 11 is first group of magnetic valve, and magnetic valve 12 is second group of magnetic valve, and magnetic valve 13 is the 3rd a group of magnetic valve.
When temperature in the spray column reaches 180 ℃, the PLC controller instructs three groups of magnetic valves to open shower valve simultaneously, carry out spraying cooling, as long as temperature does not drop to the condition that only needs to open two groups of valves or one group of valve in the tower, just keep three groups of magnetic valves 11,12,13 is simultaneously in running order, when temperature in the tower drops to the condition that only needs two groups of valves of unlatching or one group of valve, just according to Preset Time four hours, sent respectively in eight hours and adjust instruction, change the duty respectively organize magnetic valve, open the shower valve of respective numbers according to opening one group or the requirement of opening two groups of magnetic valves simultaneously.
Each organizes the working electromagnet valve every 60 minutes instruction shower valve water sprays and once jet, and each spray time was 10 seconds, and the ratio of regulating air pressure and hydraulic pressure is 4: 3.
Embodiment 7:
As shown in Figure 1, spray column comprises three groups of magnetic valves 11,12 by the control of PLC controller, 13, three groups of magnetic valves 11,12,13 are controlled the opening and closing of water injection valves and snifting valve, design one loop control module realizes three groups of magnetic valves 11 in the PLC controller, 12,13 circulations are first group of magnetic valve in turn: when spray column was started working, magnetic valve 11 was first group of magnetic valve, magnetic valve 12 is second group of magnetic valve, and magnetic valve 13 is the 3rd a group of magnetic valve; After two hours, the PLC controller sends adjusts instruction, and magnetic valve 12 is first group of magnetic valve, and magnetic valve 13 is second group of magnetic valve, and magnetic valve 11 is the 3rd a group of magnetic valve; After four hours, the PLC controller sends once more adjusts instruction, and magnetic valve 13 is first group of magnetic valve, and magnetic valve 11 is second group of magnetic valve, and magnetic valve 12 is the 3rd a group of magnetic valve; After six hours, each is organized magnetic valve and is back to reset condition, and promptly magnetic valve 11 is first group of magnetic valve, and magnetic valve 12 is second group of magnetic valve, and magnetic valve 13 is the 3rd a group of magnetic valve.The cycle period of three groups of magnetic valve 11,12,13 duties is 6 hours.
When temperature in the spray column reaches 150 ℃, the instruction of PLC controller is in the magnetic valve of first group and second group magnetic valve state and opens shower valve simultaneously, carry out spraying cooling, the condition of opening three groups of shower valves when as long as temperature does not reach default in the tower, just sent respectively in two hours, four hours and adjust instruction according to Preset Time, change the duty of respectively organizing magnetic valve, it is in running order to have remained two groups of magnetic valves.
Each organizes the working electromagnet valve every 40 minutes instruction shower valve water sprays and once jet, and each spray time was 5 seconds, and the ratio of regulating air pressure and hydraulic pressure is 4: 3.
Embodiment 8:
As shown in Figure 1, spray column comprises three groups of magnetic valves 11,12 by the control of PLC controller, 13, three groups of magnetic valves 11,12,13 are controlled the opening and closing of water injection valves and snifting valve, design one loop control module realizes three groups of magnetic valves 11 in the PLC controller, 12,13 circulations are first group of magnetic valve in turn: when spray column was started working, magnetic valve 11 was first group of magnetic valve, magnetic valve 12 is second group of magnetic valve, and magnetic valve 13 is the 3rd a group of magnetic valve; After three hours, the PLC controller sends adjusts instruction, and magnetic valve 12 is first group of magnetic valve, and magnetic valve 13 is second group of magnetic valve, and magnetic valve 11 is the 3rd a group of magnetic valve; After six hours, the PLC controller sends once more adjusts instruction, and magnetic valve 13 is first group of magnetic valve, and magnetic valve 11 is second group of magnetic valve, and magnetic valve 12 is the 3rd a group of magnetic valve; After nine hours, each is organized magnetic valve and is back to reset condition, and promptly magnetic valve 11 is first group of magnetic valve, and magnetic valve 12 is second group of magnetic valve, and magnetic valve 13 is the 3rd a group of magnetic valve.The cycle period of three groups of magnetic valve 11,12,13 duties is 9 hours.
When temperature in the spray column reaches 130 ℃, the instruction of PLC controller is in the magnetic valve of first group of magnetic valve state and opens shower valve, carry out spraying cooling, the condition of opening two groups or three groups shower valves when as long as temperature does not reach default in the tower, just sent respectively in three hours, six hours and adjust instruction, change the duty of respectively organizing magnetic valve according to Preset Time.
Each organizes the working electromagnet valve every 60 minutes instruction shower valve water sprays and once jet, and each spray time was 8 seconds, and the ratio of regulating air pressure and hydraulic pressure is 4: 3.
Embodiment 9:
Spray column comprises three groups of magnetic valves 11 by the control of PLC controller, 12,13, three groups of magnetic valves 11,12, the opening and closing of 13 control water injection valves and snifting valve, design one loop control module realizes three groups of magnetic valves 11,12 in the PLC controller, 13 circulations are first group of magnetic valve in turn: when spray column is started working, magnetic valve 11 is first group of magnetic valve, and magnetic valve 12 is second group of magnetic valve, and magnetic valve 13 is the 3rd a group of magnetic valve; After six hours, the PLC controller sends adjusts instruction, and magnetic valve 12 is first group of magnetic valve, and magnetic valve 13 is second group of magnetic valve, and magnetic valve 11 is the 3rd a group of magnetic valve; After 12 hours, the PLC controller sends once more adjusts instruction, and magnetic valve 13 is first group of magnetic valve, and magnetic valve 11 is second group of magnetic valve, and magnetic valve 12 is the 3rd a group of magnetic valve; After 18 hours, each is organized magnetic valve and is back to reset condition, and promptly magnetic valve 11 is first group of magnetic valve, and magnetic valve 12 is second group of magnetic valve, and magnetic valve 13 is the 3rd a group of magnetic valve.The cycle period of three groups of magnetic valve 11,12,13 duties is 18 hours.
When temperature in the spray column reaches 150 ℃, the instruction of PLC controller is in the magnetic valve of first group and second group magnetic valve state and opens shower valve simultaneously, carry out spraying cooling, the condition of opening three groups of shower valves when as long as temperature does not reach default in the tower, just sent respectively in six hours, 12 hours and adjust instruction according to Preset Time, change the duty of respectively organizing magnetic valve, it is in running order to have remained two groups of magnetic valves.
Each organizes the working electromagnet valve every 50 minutes instruction shower valve water sprays and once jet, and each spray time was 8 seconds, and the ratio of regulating air pressure and hydraulic pressure is 4: 3.
And in magnetic valve 11, install a manually-operated gate additional, can when having a power failure, use as emergency valve.
Embodiment 10:
As shown in Figure 2, before the spray column work, what preestablish the PLC controller respectively organizes data, when spray column is started working, according to flow process condition for identification shown in Figure 2 with according to condition carry out work.
Claims (8)
1. one kind prolongs the spray column method in service life, described spray column comprises three groups of magnetic valves (11 by the control of PLC controller, 12,13), three groups of magnetic valves (11,12,13) opening and closing of control water injection valve and snifting valve is characterized in that, design one loop control module realizes three groups of magnetic valves (11 in the PLC controller, 12,13) control in order:
When spray column was started working, magnetic valve (11) was first group of magnetic valve, and magnetic valve (12) is second group of magnetic valve, and magnetic valve (13) is the 3rd a group of magnetic valve;
Through Preset Time S
1After, the PLC controller sends adjusts instruction, and magnetic valve (12) is first group of magnetic valve, and magnetic valve (13) is second group of magnetic valve, and magnetic valve (11) is the 3rd a group of magnetic valve;
Through Preset Time S
2After, the PLC controller sends once more adjusts instruction, and magnetic valve (13) is first group of magnetic valve, and magnetic valve (11) is second group of magnetic valve, and magnetic valve (12) is the 3rd a group of magnetic valve;
Through Preset Time S
3After, each is organized magnetic valve and is back to reset condition.
2. a kind of spray column method in service life that prolongs according to claim 1 is characterized in that, when the spray column temperature reached 120～150 ℃, the PLC controller instructed first group of magnetic valve to open water injection valve and snifting valve; When the spray column temperature reached 150～180 ℃, the PLC controller instructed first group, second group magnetic valve to open water injection valve and snifting valve simultaneously; When the spray column temperature reached more than 180 ℃, the PLC controller instructed whole three groups of magnetic valves to open water injection valve and snifting valve, carries out spraying cooling.
3. a kind of spray column method in service life that prolongs according to claim 1 is characterized in that described Preset Time S
1, S
2, S
3Equal or unequal.
4. a kind of spray column method in service life that prolongs according to claim 2 is characterized in that, each organize the working electromagnet valve at interval 30～60 minutes instruction water injection valves and snifting valve open once, water spray and jet time are 5～10 seconds.
5. according to each described a kind of spray column method in service life that prolongs in the claim 1 to 4, it is characterized in that, proportion control between air pressure, hydraulic pressure, automatic regulating valve aperture value of feedback three is set in described PLC controller.
6. a kind of spray column method in service life that prolongs according to claim 5 is characterized in that, the ratio of described air pressure and hydraulic pressure automatic or manual is as required regulated.
7. a kind of spray column method in service life that prolongs according to claim 6 is characterized in that the ratio of described air pressure and hydraulic pressure is 4: 3.
8. according to each described a kind of spray column method in service life that prolongs in the claim 1 to 4, it is characterized in that, in three groups of magnetic valves (11,12,13) arbitrary group, install a manually-operated gate additional.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201010607973 CN102091507B (en) | 2010-12-28 | 2010-12-28 | Method for prolonging service life of spray tower |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201010607973 CN102091507B (en) | 2010-12-28 | 2010-12-28 | Method for prolonging service life of spray tower |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN102091507A true CN102091507A (en) | 2011-06-15 |
| CN102091507B CN102091507B (en) | 2013-07-31 |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107914349A (en) * | 2017-12-25 | 2018-04-17 | 安徽立信橡胶科技有限公司 | A kind of new type rubber cooler |
| CN108044830A (en) * | 2017-12-25 | 2018-05-18 | 安徽立信橡胶科技有限公司 | A kind of rubber cooling machine |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH0838826A (en) * | 1994-07-27 | 1996-02-13 | Rinfuoosu Kogyo Kk | Filtration device with water feed function |
| CN1317361A (en) * | 2001-03-30 | 2001-10-17 | 贵阳铝镁设计研究院 | Process for purifying fume from calcining furnace of aluminium electrolyzing anode |
| CN101301557A (en) * | 2007-05-08 | 2008-11-12 | 石大伟 | Intellectualized system for treating exhaust air and recovering solvent |
-
2010
- 2010-12-28 CN CN 201010607973 patent/CN102091507B/en not_active Expired - Fee Related
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH0838826A (en) * | 1994-07-27 | 1996-02-13 | Rinfuoosu Kogyo Kk | Filtration device with water feed function |
| CN1317361A (en) * | 2001-03-30 | 2001-10-17 | 贵阳铝镁设计研究院 | Process for purifying fume from calcining furnace of aluminium electrolyzing anode |
| CN101301557A (en) * | 2007-05-08 | 2008-11-12 | 石大伟 | Intellectualized system for treating exhaust air and recovering solvent |
Non-Patent Citations (1)
| Title |
|---|
| 王喜春等: "阳极焙烧炉烟气净化系统着火原因及对策", 《轻金属》 * |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107914349A (en) * | 2017-12-25 | 2018-04-17 | 安徽立信橡胶科技有限公司 | A kind of new type rubber cooler |
| CN108044830A (en) * | 2017-12-25 | 2018-05-18 | 安徽立信橡胶科技有限公司 | A kind of rubber cooling machine |
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| Publication number | Publication date |
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| CN102091507B (en) | 2013-07-31 |
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Address after: Taoyuan County in Hunan province Changde city 415700 disk town Chuangyuan Industrial Park Patentee after: Shengtong Science and Technology Group Co.,Ltd. Address before: Sheng Tong Industrial Park No. 109 Venus Road 410200 in Hunan province Changsha City Patentee before: Hunan Sheng Tong Technology Group Co.,Ltd. |
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