CN106408839A - Signal processing system for carbon baking kiln gas temperature alarm device - Google Patents
Signal processing system for carbon baking kiln gas temperature alarm device Download PDFInfo
- Publication number
- CN106408839A CN106408839A CN201610742697.9A CN201610742697A CN106408839A CN 106408839 A CN106408839 A CN 106408839A CN 201610742697 A CN201610742697 A CN 201610742697A CN 106408839 A CN106408839 A CN 106408839A
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- pole
- resistance
- polar capacitor
- amplifier
- audion
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Classifications
-
- G—PHYSICS
- G08—SIGNALLING
- G08B—SIGNALLING OR CALLING SYSTEMS; ORDER TELEGRAPHS; ALARM SYSTEMS
- G08B17/00—Fire alarms; Alarms responsive to explosion
- G08B17/10—Actuation by presence of smoke or gases, e.g. automatic alarm devices for analysing flowing fluid materials by the use of optical means
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01K—MEASURING TEMPERATURE; MEASURING QUANTITY OF HEAT; THERMALLY-SENSITIVE ELEMENTS NOT OTHERWISE PROVIDED FOR
- G01K1/00—Details of thermometers not specially adapted for particular types of thermometer
- G01K1/02—Means for indicating or recording specially adapted for thermometers
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01K—MEASURING TEMPERATURE; MEASURING QUANTITY OF HEAT; THERMALLY-SENSITIVE ELEMENTS NOT OTHERWISE PROVIDED FOR
- G01K1/00—Details of thermometers not specially adapted for particular types of thermometer
- G01K1/02—Means for indicating or recording specially adapted for thermometers
- G01K1/024—Means for indicating or recording specially adapted for thermometers for remote indication
-
- G—PHYSICS
- G08—SIGNALLING
- G08B—SIGNALLING OR CALLING SYSTEMS; ORDER TELEGRAPHS; ALARM SYSTEMS
- G08B17/00—Fire alarms; Alarms responsive to explosion
- G08B17/06—Electric actuation of the alarm, e.g. using a thermally-operated switch
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- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Business, Economics & Management (AREA)
- Emergency Management (AREA)
- Chemical & Material Sciences (AREA)
- Analytical Chemistry (AREA)
- Amplifiers (AREA)
Abstract
The invention discloses a signal processing system for a carbon baking kiln gas temperature alarm device. The system mainly comprises a processing chip U, a triode VT2, a polarity capacitor C7, a resistor R8, a diode D3, a signal reception low pass filtering circuit which is separately connected with a base electrode of the triode VT2 and a VC base pin of the processing chip U, and a frequency error correction circuit connected with the processing chip U. The system is advantaged in that useless signals of signals can be inhibited or eliminated, phases and frequency errors of output signals can be adjusted to make the output signal be stable, so signal processing accuracy is improved, and the temperature alarm device is guaranteed to accurately alarm when carbon baking kiln gas temperature is overhigh.
Description
Technical field
The present invention relates to a kind of signal processing system, specifically refer to a kind of carbon baking furnace flue-gas temperature alarm device letter
Number processing system.
Background technology
Carbon baking furnace is usually used petroleum coke and Colophonium does raw material, and at high operating temperatures, calcination department completes vibration
The raw baking carbon blocks of molding become qualified ripe carbon block.Raw carbon block temperature in roasting process is 200-1200 DEG C, and this process discharges
Substantial amounts of baking flue gas, baking furnace fume main component is glance coal, tar and various combustible dust, and flue gas exit temperature is up to
900℃.At high temperature, these flue gases must discharge flue in time, otherwise easily overheated burning, or even sets off an explosion.Work at present
Factory, in order to prevent the temperature in flue too high and accidents caused, is just mounted with temperature alarming device in factory.Institute of factory now
Using temperature alarming device how to be made up of temperature sensor, signal processing system, controller, display and alarm, this
Can accurately be reported to the police when temperature in flue for the temperature alarming device is too high, be depended primarily on signal processing system energy
No signal is effectively processed.
However, the signal processing system of existing carbon baking furnace flue-gas temperature alarm device is to the treatment effect of signal not
Good, lead to temperature alarming device can not timely be reported to the police in flue-gas temperature superelevation, cause the staff can not be timely
High-temperature flue gas are discharged flue, so that staff can not timely discharge dangerous situation.
Therefore it provides a kind of carbon baking furnace flue-gas temperature alarm device signal processing that can improve signal processing effect
System is the task of top priority.
Content of the invention
It is an object of the invention to overcoming the signal processing system pair of existing carbon baking furnace flue-gas temperature alarm device
The not good defect of the treatment effect of signal, provides a kind of carbon baking furnace flue-gas temperature alarm device signal processing system.
To achieve these goals, the scheme that the present invention adopts is as follows：A kind of carbon baking furnace flue-gas temperature alarm device
With signal processing system, mainly by process chip U, audion VT2, positive pole is connected with the base stage of audion VT2, negative pole is through electricity
The polar capacitor C7 being connected with the GNEG pin of process chip U after sense L2, one end is connected with the VINP pin of process chip U
Connect, resistance R9 that the other end is connected with the base stage of audion VT2, one end is connected with the colelctor electrode of audion VT2, the other end
The resistance R8 of ground connection, two poles that N pole is connected with the COM pin of process chip U, P pole is connected with the emitter stage of audion VT2
Pipe D3, the signal being connected with the base stage of audion VT2 and the VC pin of process chip U respectively receives low-pass filter circuit, with
And the correction of frequency errors circuit composition being connected with process chip U；The VC pin of described process chip U and outside 12V direct current
Power supply is connected.
Further, described signal receives low-pass filter circuit by amplifier P1, audion VT1, and positive pole is after resistance R3
Be connected with the positive pole of amplifier P1, negative pole as signal receive low-pass filter circuit input polar capacitor C3, positive pole
Be connected with the negative pole of polar capacitor C3 after resistance R4, the polar capacitor C5 of minus earth, the positive pole phase of N pole and amplifier P1
Diode D1, negative pole and diode that connection, P pole are sequentially connected with the outfan of amplifier P1 after resistance R2 through inductance L1
The N pole of D1 be connected after ground connection, the polar capacitor C1 that is connected with the base stage of audion VT1 after resistance R1 of positive pole, positive pole with
The emitter stage of audion VT1 is connected, the polar capacitor C2 of minus earth, and negative pole is connected with the negative pole of amplifier P1, positive pole
The polar capacitor C6 being sequentially connected with the outfan of amplifier P1 after resistance R5 through resistance R6, positive pole is defeated with amplifier P1's
Go out end be connected, polar capacitor C4 that negative pole is connected with the base stage of audion VT2, and after P electrode resistance R7 with amplifier P1
Negative pole be connected, diode D2 that N pole is connected with the junction point of resistance R6 and resistance R5 composition；Described audion VT1's
Emitter stage is also connected with the VC pin of process chip U, its colelctor electrode is connected with the junction point of resistance R2 with inductance L1.
Described correction of frequency errors electricity routing amplifier P2, field effect transistor MOS, audion VT3, N pole is with amplifier P2's
The diode D5 that positive pole is connected, P pole is connected with the VNEG pin of process chip U, positive pole after resistance R13 with process chip
The polar capacitor C12 that the FDBK of U is connected, negative pole is connected with the negative pole of amplifier P2 after resistance R14, N pole is through resistance R15
Be connected with the base stage of audion VT3 afterwards, diode D6 that P pole is connected with the negative pole of amplifier P2, one end and audion VT3
Colelctor electrode be connected, the resistance R16 of other end ground connection, positive pole is connected with the outfan of amplifier P2, negative pole and audion
The polar capacitor C11 that the emitter stage of VT3 is connected, positive pole is connected with the VOUT pin of process chip U, negative pole and field effect transistor
The polar capacitor C9 that the grid of MOS is connected, the P pole sequentially VPOS pin phase with process chip U after resistance R11 and inductance L3
The diode D4 that connection, N pole are connected with the negative pole of polar capacitor C11, positive pole is connected with the P pole of diode D4, negative pole warp
The polar capacitor C10 being connected with the negative pole of polar capacitor C11 after adjustable resistance R12, and the leakage of negative pole and field effect transistor MOS
The polar capacitor C8 composition that pole is connected, positive pole is connected with the N pole of diode D4 after resistance R10；Described field effect transistor MOS
Drain electrode be also connected with the junction point of inductance L3 with resistance R11, its source electrode is connected with the positive pole of amplifier P2；Described amplification
The negative pole of device P2 is grounded after being also connected with the GND pin of process chip U；The negative pole of described polar capacitor C11 is as frequency by mistake
The outfan of difference correcting circuit.
In order to ensure the practical effect of the present invention, described process chip U then preferentially employs AD603 integrated chip
To realize.
The present invention compared with prior art, has advantages below and beneficial effect：
(1) present invention is not only simple in structure with low cost, and signal can accurately be processed, make carbon baking furnace
Temperature alarming device can be reported to the police immediately in flue-gas temperature superelevation, that is, ensure that staff may timely process dangerous situation, because
This can prevent flue gas overheated and burn and cause fire, or even the danger of blast occurs it is ensured that the production of carbon baking furnace
Safety.
(2) present invention can be suppressed to the garbage signal in signal or be eliminated, and the present invention can also be to output signal
Phase and frequency error be adjusted, make output signal keep stable, thus it is accurate to signal processing to improve the present invention
Property it is ensured that temperature alarming device the too high alarm of carbon baking furnace flue-gas temperature accuracy.
(3) present invention effectively raises the accuracy to signal processing, makes temperature alarming device in carbon baking furnace cigarette
Temperature spends the warning that Gao Shineng carries out promptly and accurately, and the high-temperature flue gas of carbon baking furnace can timely be discharged, can be effectively
Decrease carbon baking furnace to work under superelevation temperature state, thus the present invention can effectively extend the use longevity of carbon baking furnace
Life.
Brief description
Fig. 1 is the overall structure diagram of the present invention.
Specific embodiment
With reference to embodiment, the present invention is described in further detail, but embodiments of the present invention not limited to this.
Embodiment
As shown in figure 1, the present invention is mainly by process chip U, audion VT2, resistance R8, resistance R9, polar capacitor C7, two
Pole pipe D3, inductance L2, signal receives low-pass filter circuit, and correction of frequency errors circuit composition.
During connection, the positive pole of polar capacitor C7 is connected with the base stage of audion VT2, negative pole after inductance L2 with process core
The GNEG pin of piece U is connected.One end of resistance R9 is connected with the VINP pin of process chip U, the other end and audion VT2
Base stage be connected.One end of resistance R8 is connected with the colelctor electrode of audion VT2, and the other end is grounded.The N pole of diode D3 with
The COM pin of process chip U is connected, and P pole is connected with the emitter stage of audion VT2.Signal receives low-pass filter circuit and divides
It is not connected with the base stage of audion VT2 and the VC pin of process chip U.Correction of frequency errors circuit is connected with process chip U
Connect.The VC pin of described process chip U is connected with outside 12V DC source.
During enforcement, the audion VT2 of the present invention, inductance L2, polar capacitor C7, resistance R8, resistance R9 and diode D3 shape
The demagnetizer becoming, this demagnetizer can effectively eliminate or suppress Electromagnetic Interference signal in signal, make signal more steadily it is ensured that
Process chip U can receive accurate signal, thus improve the accuracy to signal processing for the present invention.Meanwhile, described letter
The input of number wave reception filtering circuit is then connected with the output stage of the temperature sensor of temperature alarming device, and this signal receives filter
The temperature signal that wave circuit is used for that temperature sensor is transmitted is analyzed processing.Described correction of frequency errors circuit defeated
Go out end to be then connected with the controller of temperature alarming device, this controller be then the signal that transmitted according to signal processing system Lai
Alarm is controlled.In order to ensure the practical effect of the present invention, described process chip U then preferentially employs
AD603 integrated chip is realizing.
Further, described signal receives low-pass filter circuit by amplifier P1, audion VT1, resistance R1, resistance R2,
Resistance R3, resistance R4, resistance R5, resistance R6, resistance R7, polar capacitor C1, polar capacitor C2, polar capacitor C3, polar capacitor
C4, polar capacitor C5, polar capacitor C6, diode D1, diode D2, and inductance L1 form.
During connection, the positive pole of polar capacitor C3 is connected with the positive pole of amplifier P1 after resistance R3, and negative pole is as signal
Receive the input of low-pass filter circuit and be connected with the output stage of temperature sensor.The positive pole of polar capacitor C5 is through resistance R4
It is connected with the negative pole of polar capacitor C3 afterwards, minus earth.The N pole of diode D1 is connected with the positive pole of amplifier P1, and P is extremely suitable
Secondary it is connected with the outfan of amplifier P1 after resistance R2 through inductance L1.
Wherein, after the negative pole of polar capacitor C1 is connected with the N pole of diode D1 be grounded, positive pole after resistance R1 with three poles
The base stage of pipe VT1 is connected.The positive pole of polar capacitor C2 is connected with the emitter stage of audion VT1, minus earth.Polar capacitor
The negative pole of C6 is connected with the negative pole of amplifier P1, the positive pole sequentially outfan phase with amplifier P1 after resistance R6 and resistance R5
Connect.
Meanwhile, the positive pole of polar capacitor C4 is connected with the outfan of amplifier P1, the base stage phase of negative pole and audion VT2
Connect.It is connected with the negative pole of amplifier P1 after P electrode resistance R7 of diode D2, the junction point of N pole and resistance R6 and resistance R5
It is connected.The emitter stage of described audion VT1 is also connected with the VC pin of process chip U, its colelctor electrode and inductance L1 and electricity
The junction point of resistance R2 is connected.Polar capacitor C1 in this circuit, polar capacitor C3 and polar capacitor C5 as filter capacitor, and
Polar capacitor C3 and polar capacitor C5 forms the first filter；And amplifier P1, diode D1, inductance L1, polar capacitor C6 and
The amplifier that diode D2 is formed.
Further, described correction of frequency errors electricity routing amplifier P2, field effect transistor MOS, audion VT3, resistance
R10, resistance R11, adjustable resistance R12, resistance R13, resistance R14, resistance R15, resistance R16, polar capacitor C8, polar capacitor
C9, polar capacitor C10, polar capacitor C11, polar capacitor C12, diode D4, diode D5, diode D6. and inductance L3
Composition.
During connection, the N pole of diode D5 is connected with the positive pole of amplifier P2, the VNEG pin phase of P pole and process chip U
Connect.The positive pole of polar capacitor C12 is connected with the FDBK of process chip U after resistance R13, negative pole after resistance R14 with put
The negative pole of big device P2 is connected.The N pole of diode D6 is connected with the base stage of audion VT3 after resistance R15, P pole and amplification
The negative pole of device P2 is connected.
Wherein, one end of resistance R16 is connected with the colelctor electrode of audion VT3, and the other end is grounded.Polar capacitor C11's
Positive pole is connected with the outfan of amplifier P2, and negative pole is connected with the emitter stage of audion VT3.The positive pole of polar capacitor C9 with
The VOUT pin of process chip U is connected, and negative pole is connected with the grid of field effect transistor MOS.The P pole of diode D4 is sequentially through electricity
Resistance R11 is connected with the VPOS pin with process chip U after inductance L3, and N pole is connected with the negative pole of polar capacitor C11.
Meanwhile, the positive pole of polar capacitor C10 is connected with the P pole of diode D4, negative pole after adjustable resistance R12 with polarity
The negative pole of electric capacity C11 is connected.The negative pole of polar capacitor C8 is connected with the drain electrode of field effect transistor MOS, and positive pole is after resistance R10
It is connected with the N pole of diode D4.
The drain electrode of described field effect transistor MOS is also connected with the junction point of inductance L3 with resistance R11, its source electrode and amplifier
The positive pole of P2 is connected；The negative pole of described amplifier P2 is grounded after being also connected with the GND pin of process chip U；Described polarity
The negative pole of electric capacity C11 is as the outfan of correction of frequency errors circuit and the controller signals input phase with temperature alarming device
Connect.And the amplifier P2 in this circuit, field effect transistor MOS, adjustable resistance R12 and polar capacitor C11 define actuator, should
Actuator is used for the phase and frequency of signal is modified.
During operation, the polar capacitor C1 of the signal wave reception filtering circuit of the present invention, polar capacitor C3 and polar capacitor C5 make
For filter capacitor, and polar capacitor C3 and polar capacitor C5 forms the first filter, and this first filter can effectively will input
The stronger interference signal of signal in end signal is eliminated, and then passes through by amplifier P1, diode through pre-filtered signal
The amplifier that the element such as D1 and polar capacitor C6 is formed carries out signal frequency point and is amplified, and makes the intensity enhancing of signal, and signal
Enhanced signal is filtered again through the polar capacitor C4 as filter capacitor again, and the interference signal in signal is had
The elimination of effect, makes signal more steady and carries out through resistance R9 being transferred to process chip U after choked flow.This process chip U is entered to signal
Digital signal is converted a signal into, this digital signal is finally by correction of frequency errors circuit to digital signal after row analyzing and processing
Phase and frequency error be adjusted, that is, pass through amplifier P2 in circuit, field effect transistor MOS, adjustable resistance R12 and polarity
The actuator that electric capacity C11 is formed, to realize the phase and frequency error in digital signal is adjusted, makes output signal keep
Stable, thus the present invention accurately can be processed to signal it is ensured that temperature alarming device is in carbon baking furnace flue-gas temperature
The accuracy of too high alarm.
Meanwhile, the present invention effectively raises the accuracy to signal processing, makes temperature alarming device in carbon baking furnace
Warning promptly and accurately can be carried out, the high-temperature flue gas of carbon baking furnace can timely be discharged, can be effective when flue-gas temperature is too high
The carbon baking furnace that decreases work under superelevation temperature state, thus the present invention can effectively extend the use longevity of carbon baking furnace
Life.
As described above, just can preferably realize the present invention.
Claims (4)
1. a kind of carbon baking furnace flue-gas temperature alarm device signal processing system, mainly by process chip U, audion VT2,
The polarity electricity that positive pole is connected with the base stage of audion VT2, negative pole is connected with the GNEG pin of process chip U after inductance L2
Hold C7, the resistance R9 that one end is connected, the other end is connected with the base stage of audion VT2, one with the VINP pin of process chip U
The resistance R8 that end is connected with the colelctor electrode of audion VT2, the other end is grounded, N pole is connected with the COM pin of process chip U,
The diode D3 that P pole is connected with the emitter stage of audion VT2, respectively with the base stage of audion VT2 and the VC pipe of process chip U
The signal that foot is connected receives low-pass filter circuit, and the correction of frequency errors circuit composition being connected with process chip U；Institute
The VC pin stating process chip U is connected with outside 12V DC source.
2. a kind of carbon baking furnace flue-gas temperature alarm device signal processing system according to claim 1, its feature
It is：Described signal receives low-pass filter circuit by amplifier P1, audion VT1, and positive pole is after resistance R3 with amplifier P1's
Positive pole is connected, negative pole as signal receive low-pass filter circuit input polar capacitor C3, positive pole after resistance R4 with
The negative pole of polar capacitor C3 is connected, the polar capacitor C5 of minus earth, N pole is connected with the positive pole of amplifier P1, P pole sequentially
The diode D1 being connected with the outfan of amplifier P1 after resistance R2 through inductance L1, negative pole is extremely connected with the N of diode D1
The polar capacitor C1 that after connecing, ground connection, positive pole are connected with the base stage of audion VT1 after resistance R1, positive pole is with audion VT1's
Emitter stage is connected, the polar capacitor C2 of minus earth, and negative pole is connected with the negative pole of amplifier P1, positive pole is sequentially through resistance R6
With the polar capacitor C6 being connected with the outfan of amplifier P1 after resistance R5, positive pole is connected with the outfan of amplifier P1,
The polar capacitor C4 that negative pole is connected with the base stage of audion VT2, and be connected with the negative pole of amplifier P1 after P electrode resistance R7
Connect, diode D2 that N pole is connected with the junction point of resistance R6 and resistance R5 composition；The emitter stage of described audion VT1 also with
The VC pin of process chip U is connected, its colelctor electrode is connected with the junction point of resistance R2 with inductance L1.
3. a kind of carbon baking furnace flue-gas temperature alarm device signal processing system according to claim 2, its feature
It is：Described correction of frequency errors electricity routing amplifier P2, field effect transistor MOS, the positive pole of audion VT3, N pole and amplifier P2
Be connected, diode D5 that P pole is connected with the VNEG pin of process chip U, positive pole after resistance R13 with process chip U
The polar capacitor C12 that FDBK is connected, negative pole is connected with the negative pole of amplifier P2 after resistance R14, N pole is after resistance R15
Be connected with the base stage of audion VT3, diode D6 that P pole is connected with the negative pole of amplifier P2, one end is with audion VT3's
Colelctor electrode is connected, the resistance R16 of other end ground connection, and positive pole is connected with the outfan of amplifier P2, negative pole and audion VT3
The polar capacitor C11 that is connected of emitter stage, positive pole is connected with the VOUT pin of process chip U, negative pole and field effect transistor MOS
The polar capacitor C9 that is connected of grid, P pole is sequentially connected with the VPOS pin of process chip U after inductance L3 through resistance R11
Connect, diode D4 that N pole is connected with the negative pole of polar capacitor C11, positive pole is connected with the P pole of diode D4, negative pole is through can
The polar capacitor C10 being connected with the negative pole of polar capacitor C11 after adjusting resistance R12, and the drain electrode of negative pole and field effect transistor MOS
Be connected, polar capacitor C8 that positive pole is connected with the N pole of diode D4 after resistance R10 composition；Described field effect transistor MOS
Drain electrode is also connected with the junction point of inductance L3 with resistance R11, its source electrode is connected with the positive pole of amplifier P2；Described amplifier
The negative pole of P2 is grounded after being also connected with the GND pin of process chip U；The negative pole of described polar capacitor C11 is as frequency error
The outfan of correcting circuit.
4. a kind of carbon baking furnace flue-gas temperature alarm device signal processing system according to claim 3, its feature
It is：Described process chip U is AD603 integrated chip.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610742697.9A CN106408839A (en) | 2016-08-27 | 2016-08-27 | Signal processing system for carbon baking kiln gas temperature alarm device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610742697.9A CN106408839A (en) | 2016-08-27 | 2016-08-27 | Signal processing system for carbon baking kiln gas temperature alarm device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN106408839A true CN106408839A (en) | 2017-02-15 |
Family
ID=58003441
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201610742697.9A Withdrawn CN106408839A (en) | 2016-08-27 | 2016-08-27 | Signal processing system for carbon baking kiln gas temperature alarm device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN106408839A (en) |
-
2016
- 2016-08-27 CN CN201610742697.9A patent/CN106408839A/en not_active Withdrawn
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Application publication date: 20170215 |
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