CN105021047A - Furnace kiln cooling device and cooling air flow control method - Google Patents
Furnace kiln cooling device and cooling air flow control method Download PDFInfo
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- CN105021047A CN105021047A CN201410151604.6A CN201410151604A CN105021047A CN 105021047 A CN105021047 A CN 105021047A CN 201410151604 A CN201410151604 A CN 201410151604A CN 105021047 A CN105021047 A CN 105021047A
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Abstract
The invention provides a furnace kiln cooling device and a cooling air flow control method; the cooling device comprises a cooling blower, a generator, a power supply inlet wire cabinet, a cooling blower power switching device, and a plurality of regulating valves and adjusting controllers; the switching device comprises a low voltage relay including a normally open contact; when B and C phases of a mother board in the wire inlet cabinet drops from 380V to 80V, a low voltage relay coil moves, the self-brought normally open contact turns from a normally open state to a normally close state, thus starting the generator; the plurality of regulating valves and corresponding adjusting controllers are used for controlling cooling air flow in an upper sleeve, a lower inner sleeve and a bunker of the furnace kiln; the cooling air flow control method provides cooling air flow distribution of needed production output in each day, thus automatically adjusting the cooling air flow in the upper sleeve, the lower inner sleeve and the bunker of the furnace kiln; the furnace kiln cooling device and cooling air flow control method can suit for generating set emergency guarantee power supply, and can automatically adjust cooling air flow distribution of the needed production output in each day.
Description
Technical field
The present invention relates to a kind of stove cooling device and cooling air delivery control method.
Background technology
Furnace kiln system is primarily of shaft preheater, kiln body, shaft cooler, combustion system, induced-draft fan and dust pelletizing system composition, and lime stone is transported to kiln top by monobucket winch hoister, enters in kiln through hopper, sealed gate and revolving top.There is upper and lower two-layer burner in kiln and be evenly staggeredly arranged, every layer of burner has six cylindrical combustion chambers, each combustion chamber have one with refractory material laying from kiln hood to the arch bridge of lower inner core, in combustion chamber out, the space formed below arch bridge enters the bed of material to high-temperature gas.Material moves from top to bottom in kiln, air-flow by combustion chamber against logistics campaign, finally and flow calcination area by material (lime stone) calcine.After lime completes calcining in stove, be discharged in shaft cooler.Under the pressure of mechanical air penetrates, high hot lime particle is cooled rapidly, and it is combustion-supporting that the high temperature air completed after cooling material enters into participation in stove, reaches the object improving the thermal efficiency.
Existing stove cooling layout is: a. utilizes two cooling blower coolings, work on the spot mode adopts 1 standby with 1, normally powered for ensureing cooling blower, power supply department have employed two roads and powers simultaneously in power supply mode, be loaded with again one group of generator power supply to power simultaneously, when two tunnels can not simultaneously electric power thus supplied time, outwards can export electric energy by timely starter-generator.But in actual production runs, Dang bis-road power supply can not simultaneously under electric power thus supplied, employing manually boots generator, add operative employee's labour intensity like this, sometimes also can incur loss through delay start time of generator, and once have a power failure, kiln inwall can be caused to generate heat, stove refractory brick comes off, severe life time reduction.B. now entering in furnace kiln body that cooling mainly contains three road air-flows is cool kiln bed material storehouse lime respectively; Inner sleeve cooling under stove; Stove upper bush cools.In daily production process, control the operation of refrigerating gas flow, traditional control method is in Non-follow control, specifically regulates charge flow rate control valve, then needs not to increase control valve opening, enlargement discharge as cooled; If it is excessive to cool, then reduces control valve opening and reduce flow.Due to manual working, empirical too strong, the adjusting range of different people to parameter and the difference of the anticipation value to parameter, cause the refrigerating gas flow stability of a system in regulable control kiln poor, regulates number of times more, regulates too frequent, be unfavorable for producing.
Summary of the invention
An object of the present invention is to provide a kind of cooling device for stove, generator self-starting supplying power for outside immediately after the commercial power interruption of Ke bis-road, and if when generator self-starting is powered external power recover power transmission, can guarantee that again generator is stopped power supply.
Another object of the present invention is to provide a kind of cooling air delivery control method, can according to production output needed for every day, inner sleeve cooling air delivery, stove upper bush cooling air delivery under automatic calculating kiln bed material storehouse lime cooling air delivery, stove, and automatically regulate cooling air delivery distribution aborning, and then the quality index of steady production lime.
A kind of cooling device for stove is provided according to an aspect of the present invention, comprise cooling blower, generator, electric power incoming line cabinet, cooling blower power switching device, multiple control valve and a corresponding multiple adjustment control, this switching device shifter comprises the under-voltage replay be connected with electric power incoming line cabinet and generator, under-voltage replay contains normally opened contact, the under-voltage replay coil motion when 80V is reduced in busbar B, C two-phase in incoming line cabinet by 380V, its normally opened contact carried by often open convert to normally closed, with starter-generator; The plurality of control valve and corresponding multiple adjustment control for controlling the upper bush of stove, lower inner sleeve, feed bin cooling air delivery.
Thering is provided a kind of cooling air delivery control method for stove to comprise according to a further aspect of the invention provides the cooling air delivery of production output needed for every day to distribute, automatically to regulate stove upper bush aborning, lower inner sleeve, feed bin cooling air delivery; Wherein: stove upper bush cooling air delivery controls to be regulate the aperture of control valve to control the outlet cooling air delivery of upper bush by upper bush cooling air delivery adjustment control; Lower inner sleeve cooling air delivery controls to be by regulating the aperture of diffusing control valve in lower inner sleeve exit to control lower inner sleeve entrance cooling air delivery; Feed bin cooling air delivery controls to be the flow by the regulable control lime bin cooling-air to control valve.
Described upper bush cooling air delivery sets as follows: SP=output * K/24; Wherein: SP is sleeve cooling air delivery; K is correction factor, normal K=0.07Nm
3air/kg lime.
Described upper bush cooling air delivery adjustment control is FIC350 adjustment control, and its transfer function is:
in formula: Gc(S) be transfer function; 0.005---the gain coefficient of PID adjuster; 10---the integration time constant of PID adjuster, unit: second.
Described lower inner sleeve cooling air delivery setting FIC310_SP computing formula is: FIC310_SP=output * K/24, wherein: K is correction factor; Normal K=0.45Nm
3cooling-air/kg lime.
The control valve that diffuses of described lower inner sleeve is FY310 control valve, and its transfer function is as follows:
in formula: 0.01---the gain coefficient of PID adjuster; 10---the integration time constant of PID adjuster, unit: second.
Described feed bin cooling air delivery setting FIC360_SP computing formula is: FIC360_SP=output * K/24; Wherein: K is correction factor, normal K=0.55Nm
3air/kg lime.
The control valve of described feed bin is control valve FY360, and its transfer function is as follows:
in formula: 0.05---the gain coefficient of PID adjuster; 10---the integration time constant of PID adjuster, unit: second.
Described control is divided into control and Non-follow control two kinds of modes automatically; Wherein: Non-follow control is a given output valve on host computer, directly by exporting op value, FY350 control valve is controlled; Automatic control carries out Automatic Control by computer, performing a programme comprises to be sent in the data register of PLC by the value of the proportionality coefficient of adjuster, integration time constant, derivative time constant, and make the setting value of each FIC controller control loop, process values, output valve use numerical monitor on computers, revise the pid parameter of each control loop on computers, to carry out fixing quantity simultaneously.
Cooling device for stove of the present invention and cooling air delivery control method adopt cooling blower power switching device and self-starting device, generating set emergency guarantee can be adapted to power, this apparatus structure is simple, use safety, separately adopts computer control system, can according to production output needed for every day, automatic adjustment cooling air delivery distribution, guarantee that cooling air delivery is stablized, thus stabilize the thermal regulation in kiln, and then stabilize the quality index of producing lime.
Accompanying drawing explanation
Figure
1it is the production technology layout drawing adopting the cooling device for stove of the present invention;
Fig. 2 is the layout drawing of the cooling blower power supply mode of prior art;
Fig. 3 is the cooling blower power supply mode layout drawing of the cooling device for stove of the present invention;
Fig. 4 is the flow control principle figure of the cooling air delivery control method for stove of the present invention;
Fig. 5 is that the flow-control of the cooling air delivery control method for stove of the present invention is always schemed.
Detailed description of the invention
For above-mentioned purpose of the present invention, feature and advantage can be become apparent, below in conjunction with accompanying drawing, the specific embodiment of the present invention is elaborated.First it should be noted that, the present invention is not limited to following detailed description of the invention, and the spirit that those skilled in the art should embody from following embodiment is to understand the present invention, and each technical term can do the most wide in range understanding based on Spirit Essence of the present invention.
As shown in Figure 3, the cooling device for stove of one embodiment of the invention, comprising: cooling blower D1, D2, adopts M301 type cooling blower in the present embodiment; Generator, for stand-by power supply; Electric power incoming line cabinet, such as MCC4DL incoming line cabinet; A cooling blower power switching device, comprise the under-voltage replay U be connected with electric power incoming line cabinet (MCC4DL incoming line cabinet) and generator, under-voltage replay contains normally opened contact L1, the under-voltage replay U coil motion when 80V is reduced in busbar B, C two-phase in incoming line cabinet by 380V, its normally opened contact carried by often open convert to normally closed, with starter-generator.
Adopt the cooling air delivery control method of above-mentioned cooling device, for automatically regulating the cooling air delivery in stove, as shown in Figure 1, comprise and provide the cooling air delivery of production output needed for every day to distribute, automatically to regulate stove upper bush aborning, lower inner sleeve, feed bin cooling air delivery; Wherein:
Stove upper bush cooling air delivery controls to be by regulating control valve, and the aperture of such as FY350 control valve controls the outlet cooling air delivery of upper bush;
Lower inner sleeve cooling air delivery controls to be diffuse control valve by what regulate lower inner sleeve exit, and the aperture of such as FY310 controls lower inner sleeve entrance cooling air delivery;
It is by control valve that feed bin cooling air delivery controls to comprise, the flow of the regulable control lime bin cooling-air of such as FY360.
Upper bush cooling air delivery sets as follows: FIC350_SP=output * K/24,
Wherein: FIC350_SP is sleeve cooling air delivery; K is correction factor, normal K=0.07Nm
3air/kg lime.
Upper bush cooling air delivery adjustment control is FIC350 adjustment control.
FIC350 adjustment control transfer function is:
In formula:
Gc(S) be transfer function; 0.005---the gain coefficient of PID adjuster;
10---the integration time constant of PID adjuster, unit: second.
Lower inner sleeve cooling air delivery controller is FIC310 adjustment control.
Lower inner sleeve cooling air delivery setting FIC310_SP computing formula is:
FIC310_SP=output * K/24; Wherein: K is correction factor; Normal K=0.45Nm
3cooling-air/kg lime.
Lower its transfer function of inner sleeve cooling air delivery adjustment control FIC310 is as follows:
In formula:
0.01---the gain coefficient of PID adjuster;
10---the integration time constant of PID adjuster, unit: second
Feed bin cooling air delivery controller is FIC360 adjustment control.
Feed bin cooling air delivery setting FIC360_SP computing formula is: FIC360_SP=output * K/24;
Wherein: K is correction factor, normal K=0.55Nm
3air/kg lime.
Feed bin cooling air delivery adjustment control FIC360, its transfer function is as follows:
In formula:
0.05---the gain coefficient of PID adjuster;
10---the integration time constant of PID adjuster, unit: second.
Control is divided into control and Non-follow control two kinds of modes automatically, and wherein, Non-follow control is a given output valve on host computer, directly controls FY350 control valve by exporting op value; Automatic control carries out Automatic Control by computer, performing a programme comprises to be sent in the data register of PLC by the value of the proportionality coefficient of adjuster, integration time constant, derivative time constant, and make the setting value of each FIC controller control loop, process values, output valve use numerical monitor on computers, revise the pid parameter of each control loop on computers, to carry out fixing quantity simultaneously.
Below specific embodiment of the invention process is described in detail.
Power switching device controls
Cooling blower power switching plant running principle is shown in Fig. 3, if conventional power supply MCC4DL incoming line cabinet normal power supply, its busbar B, C two-phase is 380V, and now under-voltage replay U coil is failure to actuate, and it carries normally opened contact L1 and often opens and remain unchanged.In power supply MCC4DL incoming line cabinet as usual, busbar B, C two-phase reduces to 80V by 380V, now under-voltage replay U coil motion, its carry normally opened contact L1 often open become normally closed.The present invention controls generator operation by under-voltage replay U from the change of contact-carrying L1 contact, namely conventional power supply in power supply process for a certain reason supply voltage reduce too much or brief power outage, when voltage reaches predetermined value, then self-starting generator powered; When conventional supply voltage recovers normal, then automatic stop generator powered.This just changes prior art and uses power supply under electric power thus supplied, can not need adopt and manually boot this situation of generator, as shown in Figure 2 habitually in the past.
Cooling air delivery controls
This stove cooling air delivery control core technology is that complete set thermal regulation calculates, and it can, according to production output needed for every day, provide cooling air delivery to distribute.Automatically regulate stove upper bush aborning, lower inner sleeve, feed bin cooling air delivery, thus stabilize the thermal regulation in kiln, and then stabilize the quality index of quick lime.
A.1 upper bush cooling air delivery controls (see Fig. 1 and Fig. 5)
Mainly through the outlet cooling air delivery regulating the aperture of control valve FY350 to control upper bush.Upper bush cooling air delivery setting FIC350_SP computing formula is:
FIC350_SP=output * K/24; Wherein: K is correction factor, normal K=0.07Nm
3air/kg lime;
Upper bush cooling air delivery adjustment control FIC350, its transfer function is as follows:
In formula:
0.005---the gain coefficient of PID adjuster;
10---the integration time constant of PID adjuster, unit: second
Control is divided into control and Non-follow control two kinds of modes automatically.Non-follow control i.e. a given output valve on host computer, directly by exporting op value, FY350 control valve is controlled, namely automatic control carry out Automatic Control by computer, program is in commission by the proportionality coefficient GAIN of adjuster, integration time constant TI, the value of derivative time constant TD is sent in the data register of PLC, and the setting value (SP) of each FIC controller (PID) control loop, process values (PV), output valve (OUTPUT) can use numerical monitor on computers, the pid parameter of each control loop can be revised on computers simultaneously, as SP value, GAIN value, TI value, TD value.Under " automatically " pattern, as long as input SP value, this value of system lock, PV follows SP value, carries out fixing quantity.
A.2 inner sleeve cooling air delivery is played to control (see Fig. 1 and Fig. 5)
Mainly through regulating the aperture of diffusing control valve FY310 in lower inner sleeve exit to control lower inner sleeve entrance cooling air delivery.
Lower inner sleeve cooling air delivery setting FIC310_SP computing formula is:
FIC310_SP=output * K/24; Wherein: K is correction factor, normal K=0.45Nm
3cooling-air/kg lime; Lower inner sleeve cooling air delivery adjustment control FIC310, its transfer function is as follows:
In formula:
0.01---the gain coefficient of PID adjuster;
10---the integration time constant of PID adjuster, unit: second
Same control is divided into control and Non-follow control two kinds of modes automatically.Non-follow control i.e. a given output valve on host computer, directly by exporting op value, FY310 control valve is controlled, namely automatic control carry out Automatic Control by computer, the value of proportionality coefficient GAIN, the integration time constant TI of adjuster, derivative time constant TD is in commission sent in the data register of PLC by program, as long as input SP value, this value of system lock, PV follows SP value, carries out fixing quantity.
A.3 feed bin cooling air delivery controls (see Fig. 1 and Fig. 5)
Mainly through controlling the flow of lime bin cooling-air to the adjustment of control valve FY360, feed bin cooling air delivery setting FIC360_SP computing formula is:
FIC360_SP=output * K/24; Wherein: K is correction factor, normal K=0.55Nm
3air/kg lime, feed bin cooling air delivery adjustment control FIC360, its transfer function is as follows:
In formula:
0.05---the gain coefficient of PID adjuster;
10---the integration time constant of PID adjuster, unit: second
Same control is divided into control and Non-follow control two kinds of modes automatically, and principle is unanimously the same.
The present invention is further illustrated, so that clearer understanding principle of the present invention, feature and advantage below by way of an application example.
Power switching device
In conventional power supply, the original power supply mode of generator (shown in Fig. 2), now increase a under-voltage replay U, model is DJ-152A, rated voltage 380V-400V, and its coil motion voltage is divided into 80,100,120,140,160 5 grades.Now select 80V mono-grade, another increasing puts 4 core cables, and its cable two end one end connects busbar B, C two-phase in conventional power supply MCC4DL incoming line cabinet, and other two ends connect under-voltage replay U coil, as shown in Figure 3.If its operation logic is conventional its busbar of power supply MCC4DL incoming line cabinet normal power supply B, C two-phase is 380V, now under-voltage replay U coil is failure to actuate, and it carries normally opened contact L1 and often opens and remain unchanged.In power supply MCC4DL incoming line cabinet as usual, busbar B, C two-phase reduces to 80V by 380V, now under-voltage replay U coil motion, its carry normally opened contact L1 often open become normally closed.
Utilize two cooling blower M301 and M302 cooling kiln body (see figure 1), work on the spot mode adopts 1 standby with 1, and M301 runs F301 motor-driven valve simultaneously and opens, and cooling-air flows into kiln body.If M302 runs F302 motor-driven valve simultaneously and opens, same cooling-air flows into kiln body.
Cooling air delivery controls
A.1 upper bush cooling air delivery controls
Calculate with kiln output 320TPD, namely output per day 320 tons of lime, according to upper bush cooling air delivery setting FIC350_SP computing formula be:
FIC350_SP=output * K/24(hour) wherein, K is correction factor, normal K=0.07Nm
3air/kg lime, then:
FIC350_SP=output * K/24=320*1000*0.07/24=933Nm
3air/hour
Upper bush cooling air delivery FIC350 controls to be divided into and automatically controls and Non-follow control two kinds of modes.Non-follow control i.e. a given output valve OP (see Fig. 1) on host computer, as picture display OP value 50%(illustrates that FY350 control valve opening is 50%(open range 0%-100%), now check upper bush cooling air delivery process values FIC350_pv value, whether close to FIC350_sp value, as pv value is less than sp value, then to increase op value hypothesis and open to 60%; As pv value is greater than sp value, then to reduce op value hypothesis and open to 40%; Final FIC350_pv value, close to FIC350_sp value, namely guarantees that in stove, upper bush cooling air delivery is 933Nm
3/ h.
Be all run (see figure 5) under automated manner under normal circumstances, automatically control namely to carry out Automatic Control by computer, do not need to carry out manual intervention; The value of the proportionality coefficient 0.005 of FIC350 adjuster, integration time constant 10, derivative time constant 0 is in commission sent in the data register of FIC350 controller by program, now inputting FIC350_SP is 933Nm3/h, this value of system lock, now valve opening FIC350_op value can adjust automatically, corresponding process value FIC350_PV automatically follows target FIC350_SP value and moves up and down, and final pv value is 933Nm close to sp value i.e. FIC350_pv value
3/ h carries out fixing quantity.
A.2 inner sleeve cooling air delivery is played to control
Calculate with kiln output 320TPD equally, namely output per day 320 tons of lime, according to lower inner sleeve cooling air delivery setting FIC310_SP computing formula be: FIC310_SP=output * K/24(hour); Wherein: K is correction factor, normal K=0.45Nm
3air/kg lime; Then
FIC310_SP=output * K/24=320*1000*0.45/24=6000Nm
3air/hour
Lower inner sleeve cooling air delivery FIC310 controls to be divided into and automatically controls and Non-follow control two kinds of modes.Non-follow control i.e. a given output valve OP (see Fig. 1) on host computer, as picture display OP value 50%(illustrates that FY310 control valve opening is 50%(open range 0%-100%), now check lower inner sleeve cooling air delivery process values FIC310_pv value, whether close to FIC310_sp value, finally guarantee that in stove, upper bush cooling air delivery is 6000Nm3/h by regulating FIC310_OP value.
Be all run (see figure 5) under automated manner under normal circumstances, automatically control namely to carry out Automatic Control by computer, do not need to carry out manual intervention; PID regulating parameter value is in commission sent in the data register of FIC310 controller by program, and now inputting FIC310_SP is 6000Nm
3/ h, this value of system lock, now valve opening FIC310_op value can adjust automatically, and corresponding process value FIC310_PV automatically follows target FIC310_SP value and moves up and down, and final pv value is 6000Nm close to sp value i.e. FIC310_pv value
3/ h carries out fixing quantity.
A.3 feed bin cooling air delivery controls
Calculate with kiln output 320TPD equally, namely output per day 320 tons of lime, according to feed bin cooling air delivery setting FIC360_SP computing formula be: FIC360_SP=output * K/24, wherein: K is correction factor, normal K=0.55Nm
3air/kg lime; Then
FIC360_SP=output * K/24 K is correction factor=320*1000*0.55/24=7333Nm
3/ hour
Feed bin cooling air delivery FIC360 controls similar with above upper bush cooling air delivery control FIC350 principle.
In sum, for the flow-control of the cooling air delivery control method of stove, as shown in Figure 5.
Generator self-starting supplying power for outside immediately after the commercial power interruption of Ke bis-road of the present invention, and if when generator self-starting is powered external power recover power transmission, can guarantee that again generator is stopped power supply; Can according to production output needed for every day, inner sleeve cooling air delivery, stove upper bush cooling air delivery under automatic calculating kiln bed material storehouse lime cooling air delivery, stove, and automatically regulate cooling air delivery distribution aborning, and then the quality index of steady production lime; Wherein self-starting device is powered for generating set emergency guarantee and designs, and this apparatus structure is simple, use safety; Another employing computer control system, production output needed for every day, regulates cooling air delivery distribution automatically.Guarantee that cooling air delivery is stablized, thus stabilize the thermal regulation in kiln, and then stabilize the quality index of producing lime.
Should be understood that those skilled in the art can make various changes or modifications the present invention, and these equivalent form of values fall within the application's appended claims limited range equally after having read above-mentioned instruction content of the present invention.
Claims (9)
1. the cooling device for stove, comprise cooling blower, generator, electric power incoming line cabinet, it is characterized in that, also comprise a cooling blower power switching device, multiple control valve and corresponding multiple adjustment control, this switching device shifter comprises the under-voltage replay be connected with electric power incoming line cabinet and generator, under-voltage replay contains normally opened contact, the under-voltage replay coil motion when 80V is reduced in busbar B, C two-phase in incoming line cabinet by 380V, its normally opened contact carried by often open convert to normally closed, with starter-generator; The plurality of control valve and corresponding multiple adjustment control for controlling the upper bush of stove, lower inner sleeve, feed bin cooling air delivery.
2. the cooling air delivery control method for stove, for automatically regulating the cooling air delivery in stove, it is characterized in that, comprise and provide the cooling air delivery of production output needed for every day to distribute, automatically to regulate stove upper bush aborning, lower inner sleeve, feed bin cooling air delivery; Wherein:
Stove upper bush cooling air delivery controls to be regulate the aperture of control valve to control the outlet cooling air delivery of upper bush by upper bush cooling air delivery adjustment control;
Lower inner sleeve cooling air delivery controls to be by regulating the aperture of diffusing control valve in lower inner sleeve exit to control lower inner sleeve entrance cooling air delivery;
Feed bin cooling air delivery controls to be the flow by the regulable control lime bin cooling-air to control valve.
3. the cooling air delivery control method for stove according to claim 2, is characterized in that, described upper bush cooling air delivery sets as follows: SP=output * K/24; Wherein: SP is sleeve cooling air delivery; K is correction factor, normal K=0.07Nm
3air/kg lime.
4. the cooling air delivery control method for stove according to claim 2, is characterized in that, described upper bush cooling air delivery adjustment control is FIC350 adjustment control, and its transfer function is:
in formula: Gc(S) be transfer function; 0.005---the gain coefficient of PID adjuster; 10---the integration time constant of PID adjuster, unit: second.
5. the cooling air delivery control method for stove according to claim 2, is characterized in that, described lower inner sleeve cooling air delivery setting FIC310_SP computing formula is: FIC310_SP=output * K/24 wherein: K is correction factor; Normal K=0.45Nm
3cooling-air/kg lime.
6. the cooling air delivery control method for stove according to claim 2, is characterized in that, the control valve that diffuses of described lower inner sleeve is FY310 control valve, and its transfer function is as follows:
in formula: 0.01---the gain coefficient of PID adjuster; 10---the integration time constant of PID adjuster, unit: second.
7. the cooling air delivery control method for stove according to claim 2, is characterized in that, described feed bin cooling air delivery setting FIC360_SP computing formula is: FIC360_SP=output * K/24; Wherein: K is correction factor, normal K=0.55Nm
3air/kg lime.
8. the cooling air delivery control method for stove according to claim 2, is characterized in that, the control valve of described feed bin is control valve FY360, and its transfer function is as follows:
in formula: 0.05---the gain coefficient of PID adjuster; 10---the integration time constant of PID adjuster, unit: second.
9. the cooling air delivery control method for stove according to any one of claim 2 to 8, is characterized in that, described control is divided into control and Non-follow control two kinds of modes automatically; Wherein: Non-follow control is a given output valve on host computer, directly by exporting op value, FY350 control valve is controlled; Automatic control carries out Automatic Control by computer, performing a programme comprises to be sent in the data register of PLC by the value of the proportionality coefficient of adjuster, integration time constant, derivative time constant, and make the setting value of each FIC controller control loop, process values, output valve use numerical monitor on computers, revise the pid parameter of each control loop on computers, to carry out fixing quantity simultaneously.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410151604.6A CN105021047A (en) | 2014-04-15 | 2014-04-15 | Furnace kiln cooling device and cooling air flow control method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410151604.6A CN105021047A (en) | 2014-04-15 | 2014-04-15 | Furnace kiln cooling device and cooling air flow control method |
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ID=54411204
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| CN201410151604.6A Pending CN105021047A (en) | 2014-04-15 | 2014-04-15 | Furnace kiln cooling device and cooling air flow control method |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107726849A (en) * | 2017-11-03 | 2018-02-23 | 上海电力学院 | A kind of cabinet-type electric furnace Temperature-controlled appliance |
| CN112537902A (en) * | 2020-11-30 | 2021-03-23 | 彩虹显示器件股份有限公司 | Device and method for controlling thickness air flow of glass forming area |
-
2014
- 2014-04-15 CN CN201410151604.6A patent/CN105021047A/en active Pending
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107726849A (en) * | 2017-11-03 | 2018-02-23 | 上海电力学院 | A kind of cabinet-type electric furnace Temperature-controlled appliance |
| CN112537902A (en) * | 2020-11-30 | 2021-03-23 | 彩虹显示器件股份有限公司 | Device and method for controlling thickness air flow of glass forming area |
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Application publication date: 20151104 |