CN104930863A - Alarm current-limiting type waste-heat power generation system based on submerged-arc furnace - Google Patents
Alarm current-limiting type waste-heat power generation system based on submerged-arc furnace Download PDFInfo
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- CN104930863A CN104930863A CN201510272412.5A CN201510272412A CN104930863A CN 104930863 A CN104930863 A CN 104930863A CN 201510272412 A CN201510272412 A CN 201510272412A CN 104930863 A CN104930863 A CN 104930863A
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
- Y02P10/00—Technologies related to metal processing
- Y02P10/25—Process efficiency
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
- Y02P80/00—Climate change mitigation technologies for sector-wide applications
- Y02P80/10—Efficient use of energy, e.g. using compressed air or pressurized fluid as energy carrier
- Y02P80/15—On-site combined power, heat or cool generation or distribution, e.g. combined heat and power [CHP] supply
Abstract
The invention discloses an alarm current-limiting type waste-heat power generation system based on a submerged-arc furnace. The alarm current-limiting type waste-heat power generation system based on the submerged-arc furnace comprises a waste heat boiler, an evaporation heating surface, a coal economizer, a steam pocket, a steam superheater, a steam turbine, a power generator, a flash evaporator and a condenser. A waste heat power generation control system is arranged inside the power generator 7. The waste heat power generation control system is composed of a transformer T1, a diode bridge rectifier U1 connected with a secondary side coil of the transformer T1 in series, a power circuit and a power amplification circuit connected between the positive output end and negative output end of the diode bridge rectifier U1 in series, a temperature alarm circuit connected with the positive output end of the diode bridge rectifier U1, and a current-limiting circuit connected to the power circuit in series. The two ends of a primary side coil of the transformer T1 form the input ends. The waste-heat power generation system capable of recovering waste heat can recover and process waste heat sufficiently, thereby increasing the utilization rate of energy and further relieving burdens of enterprises.
Description
Technical field
The invention belongs to cogeneration technology field, particularly a kind of alarm limit streaming afterheat generating system based on mineral hot furnace.
Background technology
Mineral hot furnace is mostly semi-closed electric stove, and it not only solves the technological operation problem of smelting, and is effectively solve flue gas cleaning and heat recovery technology creation condition; The exhaust gas volumn that semi-closed electric stove produces is 10 ~ 15 times of totally-enclosed exhaust gas volumn, and the energy consumption of approximately nearly 50% is all enter air with the sensible heat form of low-temperature flue gas in process of production, has not only wasted heat energy but also contaminated environment.But current mineral heating furnace flue waste heat there is no recovery, mainly because flue-gas temperature is low, the investment needed for waste heat recovery is high.So need now to provide an electricity generation system can carrying out waste heat recovery fully to carry out taking back and process to waste heat, to improve the utilization rate of the energy, reduce the burden of enterprise.
Summary of the invention
The object of the invention is to overcome the defect that above-mentioned waste heat fails well to carry out recycling, a kind of alarm limit streaming afterheat generating system based on mineral hot furnace is provided.
To achieve these goals, the present invention realizes by the following technical solutions:
Based on the alarm limit streaming afterheat generating system of mineral hot furnace, comprise generator, the steam turbine that main shaft connects with the rotating shaft of generator, with the waste heat boiler of exhaust gas inlet and waste gas outlet, be contained in the economizer in described waste heat boiler and evaporating heating surface, the drum be communicated with the port of export of economizer, the saturated vapor outlet of saturated vapor import and drum, the steam superheater that superheated steam output is connected with the steam input of steam turbine, input is connected with the steam output end of steam turbine, the condenser that output is connected with the input of economizer, and the flash vessel be connected on economizer input and output, the output of described flash vessel is also connected with steam turbine, the arrival end of described evaporating heating surface is communicated with the hydrospace of drum, the port of export is communicated with the air space of drum, also afterheat power-generation control system is provided with at described generator, this afterheat power-generation control system is by transformer T1, be serially connected in the diode bridge rectifier U1 on the secondary coil of transformer T1, be serially connected in the power circuit between the positive output end of diode bridge rectifier U1 and negative output terminal and power amplification circuit, be connected to the temperature alarm circuit on the positive output end of diode bridge rectifier U1, and serial connection current-limiting circuit composition in a power, the two ends composition input of the primary coil of transformer T1, described temperature alarm circuit is by triode VT201, triode VT202, triode VT203, triode VT204, triode VT205, operational amplifier chip IC 201, time base circuit chip IC 202, one end is connected with the IN+ pin of operational amplifier chip IC 201, the thermistor RT201 that the other end is connected with the Vcc+ pin of operational amplifier chip IC 201, one end is connected with the IN-pin of operational amplifier chip IC 201, the resistance R202 that the other end is connected with the Vcc+ pin of operational amplifier chip IC 201, one end is connected with the IN+ pin of operational amplifier chip IC 201, the resistance R201 that the other end is connected with the IN-pin of operational amplifier chip IC 201 after slide rheostat R201, be serially connected in the inductance L 201 between triode VT204 base stage and triode VT204 emitter stage, P pole is connected with the base stage of triode VT202, the Zener diode D201 that N pole is connected with the colelctor electrode of triode VT203 after resistance R203, one end is connected with the emitter stage of triode VT203, the resistance R204 that the other end is connected with the emitter stage of triode VT202, be serially connected in the inductance L 203 between the base stage of triode VT204 and the colelctor electrode of triode VT205, be serially connected in the resistance R205 between the base stage of triode VT205 and the colelctor electrode of triode VT205, negative pole is connected with the base stage of triode VT201, the electric capacity C201 that positive pole is connected with the colelctor electrode of triode VT201 after inductance L 202, one end is connected with the colelctor electrode of triode VT202, the resistance R206 that the other end is connected with the colelctor electrode of triode VT201, one end is connected with the colelctor electrode of triode VT201, the resistance R207 that the other end is connected with the Discharge pin of time base circuit chip IC 202, one end is connected with the Discharge pin of time base circuit chip IC 202, the resistance R208 that the other end is connected with the Tegger pin of time base circuit chip IC 202, positive pole is connected with the Tegger pin of time base circuit chip IC 202, the electric capacity C203 that negative pole is connected with the colelctor electrode of triode VT205, minus earth, the electric capacity C206 that positive pole is connected with the Control voltage pin of time base circuit chip IC 202, positive pole is connected with the Output pin of time base circuit chip IC 202, the electric capacity C204 that negative pole is connected with the negative pole of electric capacity C206 after loudspeaker P, positive pole is connected with the Output pin of time base circuit chip IC 202, the electric capacity C205 that negative pole is connected with the negative pole of electric capacity C206 after resistance R209, and positive pole is connected with the Vcc pin of time base circuit chip IC 202, the electric capacity C202 of minus earth forms, wherein, the base stage of triode VT204 is connected with the tie point of slide rheostat RP201 with resistance R201, the emitter stage of triode VT204 is also connected with the Vcc-pin of operational amplifier chip IC 201, the colelctor electrode of triode VT204 is connected with the emitter stage of the base stage of triode VT203 and triode VT205, the colelctor electrode of triode VT203 is connected with the OFFSET pin of operational amplifier chip IC 201, the base stage of triode VT202 is connected with the emitter stage of triode VT201, the grounded collector of triode VT205, the minus earth of electric capacity C201, the colelctor electrode of triode VT202 is connected with the RESET pin of time base circuit chip IC 202, the Tegger pin of time base circuit chip IC 202 is connected with the Threshold pin of time base circuit chip IC 202, the Vcc pin of time base circuit chip IC 202 is connected with the colelctor electrode of triode VT201.
Described current-limiting circuit is by triode VT101, triode VT102, triode VT103, triode VT104, triode VT105, triode VT106, N pole is connected with the base stage of triode VT101, the diode D101 that P pole is connected with the colelctor electrode of triode VT101 after resistance R101, one end is connected with the emitter stage of triode VT104, the inductance L 101 that the other end is connected with the emitter stage of triode VT102, positive pole is connected with the colelctor electrode of triode VT106, the electric capacity C101 that negative pole is connected with the emitter stage of triode VT104, the resistance R102 in parallel with electric capacity C101, be serially connected in the resistance R104 between the base stage of triode VT104 and the emitter stage of triode VT104, one end is connected with the base stage of triode VT104, the inductance L 102 that the other end is connected with the base stage of triode VT105 after resistance R107, P pole is connected with the emitter stage of triode VT104, the Zener diode D103 that N pole is connected with the emitter stage of triode VT103, P pole is connected with the emitter stage of triode VT103 after resistance R103, the diode D102 that N pole is connected with the colelctor electrode of triode VT105, one end is connected with the emitter stage of triode VT102, the resistance R105 that the other end is connected with the colelctor electrode of triode VT105, one end is connected with the base stage of triode VT105, the other end is connected with the emitter stage of triode VT102 after resistance R106, the slide rheostat RP101 that slide plate is connected with the base stage of triode VT103, the resistance R109 in parallel with resistance R107, one end is connected with the base stage of triode VT105, the resistance R108 that the other end is connected with the emitter stage of triode VT102, and positive pole is connected with the emitter stage of triode VT102, the electric capacity C102 that negative pole is connected with the tie point of inductance L 102 with resistance R107 forms, wherein, the base stage of triode VT101 is also connected with the colelctor electrode of triode VT103 and the colelctor electrode of triode VT102, the emitter stage of triode VT101 is connected with the base stage of triode VT102, the P pole of diode D101 is connected with the emitter stage of triode VT106, and the emitter stage of triode VT103 is connected with the base stage of triode VT106.
Further, above-mentioned power circuit comprises triode VT1, triode VT2, triode VT3, positive pole is connected with the positive output end of diode bridge rectifier U1, the electric capacity C1 that negative pole is connected with the negative output terminal of diode bridge rectifier U1 after resistance R3, one end is connected with the positive pole of electric capacity C1, the resistance R1 that the other end is connected with the base stage of triode VT1, the electric capacity C2 in parallel with resistance R1, N pole is connected with the base stage of triode VT1, the diode D1 that P pole is connected with the colelctor electrode of triode VT3, negative pole is connected with the P pole of diode D1, the electric capacity C3 that positive pole is connected with the positive pole of electric capacity C1, P pole is connected with the emitter stage of triode VT2, the diode D2 that N pole is connected with the colelctor electrode of triode VT3, one end is connected with the colelctor electrode of triode VT2, the resistance R4 that the other end is connected with the emitter stage of triode VT3, positive pole is connected with the base stage of triode VT3, the electric capacity C4 that negative pole is connected with the emitter stage of triode VT3, the electric capacity C5 in parallel with electric capacity C4, one end is connected with the positive pole of electric capacity C3, the resistance R2 that the other end is connected with the positive pole of electric capacity C4, and P pole is connected with the positive pole of electric capacity C3, the diode D3 that N pole is connected with the P pole of electric capacity D1 after electric capacity C6 forms, wherein, the negative pole of electric capacity C1 is also connected with the colelctor electrode of triode VT1, the emitter stage of triode VT1 is connected with the base stage of triode VT2, and the colelctor electrode of triode VT2 is connected with the negative output terminal of diode bridge rectifier U1, and the positive pole of electric capacity C6 and the negative pole of electric capacity C6 form output.
As preferably, the colelctor electrode of described triode VT101 is connected with the base stage of triode VT3, the negative pole of electric capacity C101 is connected with the emitter stage of triode VT3, the positive pole of electric capacity C104 is connected with the positive pole of electric capacity C6, negative pole is connected with the negative pole of electric capacity C6, and the positive pole of electric capacity C201 is connected with the positive output end of diode bridge rectifier U1.
Further, above-mentioned power amplification circuit is by triode VT4, triode VT5, triode VT6, triode VT7, one end is connected with the positive output end of diode bridge rectifier U1, the resistance R5 that the other end is connected with the emitter stage of triode VT5, one end is connected with the colelctor electrode of triode VT5, the resistance R9 that the other end is connected with the colelctor electrode of triode VT4 after resistance R8, be serially connected in the resistance R7 between the base stage of triode VT4 and the colelctor electrode of triode VT4, one end is connected with the positive output end of diode bridge rectifier U1, the resistance R6 that the other end is connected with the emitter stage of triode VT5, P pole is connected with the base stage of triode VT4, the diode D5 that N pole is connected with the base stage of triode VT7 after diode D4, one end is connected with the colelctor electrode of triode VT7, the resistance R11 that the other end is connected with the emitter stage of triode VT7 after inductance L 1, one end is connected with the colelctor electrode of triode VT7, the resistance R10 that the other end is connected with the emitter stage of triode VT7, and negative pole is connected with the colelctor electrode of triode VT7, the electric capacity C7 that positive pole is connected with the tie point of resistance R9 with resistance R8 after diode D6 forms, wherein, the emitter stage of triode VT4 is connected with the emitter stage of triode VT7, the emitter stage of triode VT4 is connected with the emitter stage of triode VT5, the base stage of triode VT7 is connected with the colelctor electrode of triode VT6, the emitter stage of triode VT6 is connected with the colelctor electrode of triode VT7, the base stage of triode VT6 is connected with the positive output end of diode bridge rectifier U1, the colelctor electrode of triode VT7 is connected with the emitter stage of triode VT5, the negative pole of electric capacity C7 is also connected with the negative output terminal of diode bridge rectifier U1, the negative pole of electric capacity C7 is also connected with the base stage of triode VT5 and the negative pole of electric capacity C6, the positive pole of electric capacity C7 is also connected with the P pole of diode D3.
As preferably, described triode VT1, triode VT2, triode VT3, triode VT4, triode VT5, triode VT6, triode VT101 triode VT102, triode VT103, triode VT104, triode VT105, triode VT201, triode VT202, triode VT204 and triode VT205 are NPN type triode, and triode VT7, triode VT106 and triode VT203 are PNP type triode.
The present invention comparatively prior art compares, and has the following advantages and beneficial effect:
(1) structure of the present invention is simple, can improve steam turbine inlet steam parameter, make full use of the waste heat flue gas of mineral hot furnace, change into electric energy to greatest extent, and cogeneration ability is strong, not only can reduce energy consumption, promote resources conservation, and protect environment.
(2) the present invention is provided with waste heat control system, can be good at controlling generator system, substantially increases the generating efficiency of generator and the fan-out capability of electric energy, further increases the generating capacity of product.
(3) power circuit and power amplification circuit walk abreast and arrange by the present invention, guaranteeing can also carry out certain lifting to the output of power supply while power supply exports, further increase the power output of product.
(4) the present invention is also serially connected with current-limiting circuit in a power, can be good at reducing the electrical current fluctuations in circuit, avoids the too high circuit burnout caused of electric current, improves stability and the life-span of the use of product.
(5) the present invention is provided with temperature alarm circuit; this temperature alarm circuit can be reported to the police higher than during preset value at circuit temperature; well avoid the too high circuit burnout caused of running temperature of circuit, protect the security that circuit uses further, improve the service life of circuit.
Accompanying drawing explanation
Fig. 1 is overall structure schematic diagram of the present invention.
Fig. 2 is afterheat power-generation control system circuit diagram of the present invention.
Fig. 3 is the circuit diagram of current-limiting circuit of the present invention.
Fig. 4 is the circuit diagram of temperature alarm circuit of the present invention.
Wherein, the Reference numeral title in accompanying drawing is respectively:
1, waste heat boiler; 2, evaporating heating surface; 3, economizer; 4, drum; 5, steam superheater; 6, steam turbine; 7, generator; 8, flash vessel; 9, condenser; 10, current-limiting circuit; 20, temperature alarm circuit.
Detailed description of the invention
Below in conjunction with embodiment, the present invention is described in further detail, but embodiments of the present invention are not limited thereto.
Embodiment
As shown in Figure 1, the present invention includes waste heat boiler 1, evaporating heating surface 2, economizer 3, drum 4, steam superheater 5, steam turbine 6, generator 7, flash vessel 8 and condenser 9.The main shaft of steam turbine 6 connects with the rotating shaft of generator 7, waste heat boiler 1 is with exhaust gas inlet and waste gas outlet, economizer 3 and evaporating heating surface 2 are arranged in described waste heat boiler 1, drum 4 to be arranged in waste heat boiler 1 and to be communicated with the port of export of economizer 3, the saturated vapor import of steam superheater 5 and the saturated vapor outlet of drum 4, superheated steam output is connected with the steam input of steam turbine 6, the input of condenser 9 is connected with the steam output end of steam turbine 6, what output was connected with the input of economizer 3 is connected with the input of condenser, flash vessel 8 is connected on economizer 3 input and output, and the output of this flash vessel 8 is also connected with steam turbine 6, the arrival end of evaporating heating surface 2 is communicated with the hydrospace of drum 4, the port of export is communicated with the air space of drum 4, is also provided with afterheat power-generation control system in described generator 7 inside.
Waste gas in waste heat boiler is entered by exhaust gas inlet, successively first through evaporating heating surface and economizer before discharging from waste gas outlet, heat is wherein passed to evaporating heating surface and economizer, then the waste gas that heat energy exhausts is being discharged from waste gas outlet, and by evaporating heating surface and economizer the heat that absorbs for heating to water, water is made progressively to heat up and finally become water vapour, water vapour pushing turbine rotates, thus drive electrical generators operation generates electricity, condensed water is again got back in circulating line and is again heated by evaporating heating surface and economizer, thus recycle.
Structure of the present invention is simple, can improve steam turbine inlet steam parameter, make full use of the waste heat flue gas of mineral hot furnace, change into electric energy to greatest extent, and cogeneration ability is strong, not only can reduce energy consumption, promote resources conservation, and protect environment.
As shown in Figure 2,3, 4, described afterheat power-generation control system is by transformer T1, be serially connected in the diode bridge rectifier U1 on the secondary coil of transformer T1, be serially connected in the power circuit between the positive output end of diode bridge rectifier U1 and negative output terminal and power amplification circuit, be connected to the temperature alarm circuit 20 on the positive output end of diode bridge rectifier U1, and serial connection current-limiting circuit 10 in a power forms, the two ends composition input of the primary coil of transformer T1, described temperature alarm circuit 20 is by triode VT201, triode VT202, triode VT203, triode VT204, triode VT205, operational amplifier chip IC 201, time base circuit chip IC 202, resistance R201, resistance R202, resistance R203, resistance R204, resistance R205, resistance R206, resistance R207, resistance R208, resistance R209, thermistor RT201, slide rheostat RP201, electric capacity C201, electric capacity C202, electric capacity C203, electric capacity C204, electric capacity C205, electric capacity C206, inductance L 201, inductance L 202, inductance L 203, and Zener diode D201 forms.
During connection, one end of thermistor RT201 is connected with the IN+ pin of operational amplifier chip IC 201, the other end is connected with the Vcc+ pin of operational amplifier chip IC 201, one end of resistance R202 is connected with the IN-pin of operational amplifier chip IC 201, the other end is connected with the Vcc+ pin of operational amplifier chip IC 201, one end of resistance R201 is connected with the IN+ pin of operational amplifier chip IC 201, the other end is connected with the IN-pin of operational amplifier chip IC 201 after slide rheostat R201, inductance L 201 is serially connected between triode VT204 base stage and triode VT204 emitter stage, the P pole of Zener diode D201 is connected with the base stage of triode VT202, N pole is connected with the colelctor electrode of triode VT203 after resistance R203, one end of resistance R204 is connected with the emitter stage of triode VT203, the other end is connected with the emitter stage of triode VT202, inductance L 203 is serially connected between the base stage of triode VT204 and the colelctor electrode of triode VT205, resistance R205 is serially connected between the base stage of triode VT205 and the colelctor electrode of triode VT205, the negative pole of electric capacity C201 is connected with the base stage of triode VT201, positive pole is connected with the colelctor electrode of triode VT201 after inductance L 202, one end of resistance R206 is connected with the colelctor electrode of triode VT202, the other end is connected with the colelctor electrode of triode VT201, one end of resistance R207 is connected with the colelctor electrode of triode VT201, the other end is connected with the Discharge pin of time base circuit chip IC 202, one end of resistance R208 is connected with the Discharge pin of time base circuit chip IC 202, the other end is connected with the Tegger pin of time base circuit chip IC 202, the positive pole of electric capacity C203 is connected with the Tegger pin of time base circuit chip IC 202, negative pole is connected with the colelctor electrode of triode VT205, the minus earth of electric capacity C206, positive pole is connected with the Control voltage pin of time base circuit chip IC 202, the positive pole of electric capacity C204 is connected with the Output pin of time base circuit chip IC 202, negative pole is connected with the negative pole of electric capacity C206 after loudspeaker P, the positive pole of electric capacity C205 is connected with the Output pin of time base circuit chip IC 202, negative pole is connected with the negative pole of electric capacity C206 after resistance R209, the positive pole of electric capacity C202 is connected with the Vcc pin of time base circuit chip IC 202, minus earth, wherein, the base stage of triode VT204 is connected with the tie point of slide rheostat RP201 with resistance R201, the emitter stage of triode VT204 is also connected with the Vcc-pin of operational amplifier chip IC 201, the colelctor electrode of triode VT204 is connected with the emitter stage of the base stage of triode VT203 and triode VT205, the colelctor electrode of triode VT203 is connected with the OFFSET pin of operational amplifier chip IC 201, the base stage of triode VT202 is connected with the emitter stage of triode VT201, the grounded collector of triode VT205, the minus earth of electric capacity C201, the colelctor electrode of triode VT202 is connected with the RESET pin of time base circuit chip IC 202, the Tegger pin of time base circuit chip IC 202 is connected with the Threshold pin of time base circuit chip IC 202, the Vcc pin of time base circuit chip IC 202 is connected with the colelctor electrode of triode VT201.The model of operational amplifier chip IC 201 is UA741, and the model of time base circuit chip IC 202 is NE555.
Described current-limiting circuit 10 by triode VT101, triode VT102, triode VT103, triode VT104, triode VT105, triode VT106, resistance R101, resistance R102, resistance R103, resistance R104, resistance R105, resistance R106, resistance R107, resistance R108, resistance R109, electric capacity C101, electric capacity C102, inductance L 101, inductance L 102, diode D101, diode D102, Zener diode D103, and slide rheostat RP101 forms.During connection, the N pole of diode D101 is connected with the base stage of triode VT101, P pole is connected with the colelctor electrode of triode VT101 after resistance R101, one end of inductance L 101 is connected with the emitter stage of triode VT104, the other end is connected with the emitter stage of triode VT102, the positive pole of electric capacity C101 is connected with the colelctor electrode of triode VT106, negative pole is connected with the emitter stage of triode VT104, resistance R102 is in parallel with electric capacity C101, resistance R104 is serially connected between the base stage of triode VT104 and the emitter stage of triode VT104, one end of inductance L 102 is connected with the base stage of triode VT104, the other end is connected with the base stage of triode VT105 after resistance R107, the P pole of Zener diode D103 is connected with the emitter stage of triode VT104, N pole is connected with the emitter stage of triode VT103, the P pole of diode D102 is connected with the emitter stage of triode VT103 after resistance R103, N pole is connected with the colelctor electrode of triode VT105, one end of resistance R105 is connected with the emitter stage of triode VT102, the other end is connected with the colelctor electrode of triode VT105, one end of slide rheostat RP101 is connected with the base stage of triode VT105, the other end is connected with the emitter stage of triode VT102 after resistance R106, slide plate is connected with the base stage of triode VT103, resistance R109 is in parallel with resistance R107, one end of resistance R108 is connected with the base stage of triode VT105, the other end is connected with the emitter stage of triode VT102, the positive pole of electric capacity C102 is connected with the emitter stage of triode VT102, negative pole is connected with the tie point of inductance L 102 with resistance R107, wherein, the base stage of triode VT101 is also connected with the colelctor electrode of triode VT103 and the colelctor electrode of triode VT102, the emitter stage of triode VT101 is connected with the base stage of triode VT102, the P pole of diode D101 is connected with the emitter stage of triode VT106, and the emitter stage of triode VT103 is connected with the base stage of triode VT106.
Power circuit comprises triode VT1, triode VT2, triode VT3, resistance R1, resistance R2, resistance R3, resistance R4, electric capacity C1, electric capacity C2, electric capacity C3, electric capacity C4, electric capacity C5, diode D1, and diode D2 forms.During connection, the positive pole of electric capacity C1 is connected with the positive output end of diode bridge rectifier U1, negative pole is connected with the negative output terminal of diode bridge rectifier U1 after resistance R3, one end of resistance R1 is connected with the positive pole of electric capacity C1, the other end is connected with the base stage of triode VT1, electric capacity C2 is in parallel with resistance R1, the N pole of diode D1 is connected with the base stage of triode VT1, P pole is connected with the colelctor electrode of triode VT3, the negative pole of electric capacity C3 is connected with the P pole of diode D1, positive pole is connected with the positive pole of electric capacity C1, the P pole of diode D2 is connected with the emitter stage of triode VT2, N pole is connected with the colelctor electrode of triode VT3, one end of resistance R4 is connected with the colelctor electrode of triode VT2, the other end is connected with the emitter stage of triode VT3, the positive pole of electric capacity C4 is connected with the base stage of triode VT3, negative pole is connected with the emitter stage of triode VT3, electric capacity C5 is in parallel with electric capacity C4, one end of resistance R2 is connected with the positive pole of electric capacity C3, the other end is connected with the positive pole of electric capacity C4, the P pole of diode D3 is connected with the positive pole of electric capacity C3, N pole is connected with the P pole of electric capacity D1 after electric capacity C6, wherein, the negative pole of electric capacity C1 is also connected with the colelctor electrode of triode VT1, the emitter stage of triode VT1 is connected with the base stage of triode VT2, and the colelctor electrode of triode VT2 is connected with the negative output terminal of diode bridge rectifier U1, and the positive pole of electric capacity C6 and the negative pole of electric capacity C6 form output.
The colelctor electrode of described triode VT101 is connected with the base stage of triode VT3, the negative pole of electric capacity C101 is connected with the emitter stage of triode VT3, the positive pole of electric capacity C104 is connected with the positive pole of electric capacity C6, negative pole is connected with the negative pole of electric capacity C6, and the positive pole of electric capacity C201 is connected with the positive output end of diode bridge rectifier U1.
Above-mentioned power amplification circuit by triode VT4, triode VT5, triode VT6, triode VT7, resistance R5, resistance R6, resistance R7, resistance R8, resistance R9, resistance R10, resistance R11, electric capacity C7, diode D4 diode D5 diode D6, and inductance L 1 forms.During connection, one end of resistance R5 is connected with the positive output end of diode bridge rectifier U1, the other end is connected with the emitter stage of triode VT5, one end of resistance R9 is connected with the colelctor electrode of triode VT5, the other end is connected with the colelctor electrode of triode VT4 after resistance R8, between the base stage being serially connected in triode VT4 of resistance R7 and the colelctor electrode of triode VT4, one end of resistance R6 is connected with the positive output end of diode bridge rectifier U1, the other end is connected with the emitter stage of triode VT5, the P pole of diode D5 is connected with the base stage of triode VT4, N pole is connected with the base stage of triode VT7 after diode D4, one end of resistance R11 is connected with the colelctor electrode of triode VT7, the other end is connected with the emitter stage of triode VT7 after inductance L 1, one end of resistance R10 is connected with the colelctor electrode of triode VT7, the other end is connected with the emitter stage of triode VT7, the negative pole of electric capacity C7 is connected with the colelctor electrode of triode VT7, positive pole is connected with the tie point of resistance R9 with resistance R8 after diode D6, wherein, the emitter stage of triode VT4 is connected with the emitter stage of triode VT7, the emitter stage of triode VT4 is connected with the emitter stage of triode VT5, the base stage of triode VT7 is connected with the colelctor electrode of triode VT6, the emitter stage of triode VT6 is connected with the colelctor electrode of triode VT7, the base stage of triode VT6 is connected with the positive output end of diode bridge rectifier U1, the colelctor electrode of triode VT7 is connected with the emitter stage of triode VT5, the negative pole of electric capacity C7 is also connected with the negative output terminal of diode bridge rectifier U1, the negative pole of electric capacity C7 is also connected with the base stage of triode VT5 and the negative pole of electric capacity C6, the positive pole of electric capacity C7 is also connected with the P pole of diode D3.
Described triode VT1, triode VT2, triode VT3, triode VT4, triode VT5, triode VT6, triode VT101 triode VT102, triode VT103, triode VT104, triode VT105, triode VT201, triode VT202, triode VT204 and triode VT205 are NPN type triode, and triode VT7, triode VT106 and triode VT203 are PNP type triode.
Power circuit and power amplification circuit walk abreast and arrange, and guaranteeing can also carry out certain lifting to the output of power supply while power supply exports, further increase the power output of product.Current-limiting circuit can be good at reducing the electrical current fluctuations in circuit, avoids the too high circuit burnout caused of electric current, improves stability and the life-span of the use of product.
By said method, just well the present invention can be realized.
Claims (6)
1. based on the alarm limit streaming afterheat generating system of mineral hot furnace, comprise generator (7), the steam turbine (6) that main shaft connects with the rotating shaft of generator (7), with the waste heat boiler (1) of exhaust gas inlet and waste gas outlet, be contained in the economizer (3) in described waste heat boiler (1) and evaporating heating surface (2), the drum (4) be communicated with the port of export of economizer (3), the saturated vapor outlet of saturated vapor import and drum (4), the steam superheater (5) that superheated steam output is connected with the steam input of steam turbine (6), input is connected with the steam output end of steam turbine (6), the condenser (9) that output is connected with the input of economizer (3), and the flash vessel (8) be connected on economizer (3) input and output, the output of described flash vessel (8) is also connected with steam turbine (6), the arrival end of described evaporating heating surface (2) is communicated with the hydrospace of drum (4), the port of export is communicated with the air space of drum (4), it is characterized in that, also afterheat power-generation control system is provided with in described generator (7) inside, this afterheat power-generation control system is by transformer T1, be serially connected in the diode bridge rectifier U1 on the secondary coil of transformer T1, be serially connected in the power circuit between the positive output end of diode bridge rectifier U1 and negative output terminal and power amplification circuit, be connected to the temperature alarm circuit (20) on the positive output end of diode bridge rectifier U1, and serial connection current-limiting circuit (10) composition in a power, the two ends composition input of the primary coil of transformer T1, described temperature alarm circuit (20) is by triode VT201, triode VT202, triode VT203, triode VT204, triode VT205, operational amplifier chip IC 201, time base circuit chip IC 202, one end is connected with the IN+ pin of operational amplifier chip IC 201, the thermistor RT201 that the other end is connected with the Vcc+ pin of operational amplifier chip IC 201, one end is connected with the IN-pin of operational amplifier chip IC 201, the resistance R202 that the other end is connected with the Vcc+ pin of operational amplifier chip IC 201, one end is connected with the IN+ pin of operational amplifier chip IC 201, the resistance R201 that the other end is connected with the IN-pin of operational amplifier chip IC 201 after slide rheostat R201, be serially connected in the inductance L 201 between triode VT204 base stage and triode VT204 emitter stage, P pole is connected with the base stage of triode VT202, the Zener diode D201 that N pole is connected with the colelctor electrode of triode VT203 after resistance R203, one end is connected with the emitter stage of triode VT203, the resistance R204 that the other end is connected with the emitter stage of triode VT202, be serially connected in the inductance L 203 between the base stage of triode VT204 and the colelctor electrode of triode VT205, be serially connected in the resistance R205 between the base stage of triode VT205 and the colelctor electrode of triode VT205, negative pole is connected with the base stage of triode VT201, the electric capacity C201 that positive pole is connected with the colelctor electrode of triode VT201 after inductance L 202, one end is connected with the colelctor electrode of triode VT202, the resistance R206 that the other end is connected with the colelctor electrode of triode VT201, one end is connected with the colelctor electrode of triode VT201, the resistance R207 that the other end is connected with the Discharge pin of time base circuit chip IC 202, one end is connected with the Discharge pin of time base circuit chip IC 202, the resistance R208 that the other end is connected with the Tegger pin of time base circuit chip IC 202, positive pole is connected with the Tegger pin of time base circuit chip IC 202, the electric capacity C203 that negative pole is connected with the colelctor electrode of triode VT205, minus earth, the electric capacity C206 that positive pole is connected with the Control voltage pin of time base circuit chip IC 202, positive pole is connected with the Output pin of time base circuit chip IC 202, the electric capacity C204 that negative pole is connected with the negative pole of electric capacity C206 after loudspeaker P, positive pole is connected with the Output pin of time base circuit chip IC 202, the electric capacity C205 that negative pole is connected with the negative pole of electric capacity C206 after resistance R209, and positive pole is connected with the Vcc pin of time base circuit chip IC 202, the electric capacity C202 of minus earth forms, wherein, the base stage of triode VT204 is connected with the tie point of slide rheostat RP201 with resistance R201, the emitter stage of triode VT204 is also connected with the Vcc-pin of operational amplifier chip IC 201, the colelctor electrode of triode VT204 is connected with the emitter stage of the base stage of triode VT203 and triode VT205, the colelctor electrode of triode VT203 is connected with the OFFSET pin of operational amplifier chip IC 201, the base stage of triode VT202 is connected with the emitter stage of triode VT201, the grounded collector of triode VT205, the minus earth of electric capacity C201, the colelctor electrode of triode VT202 is connected with the RESET pin of time base circuit chip IC 202, the Tegger pin of time base circuit chip IC 202 is connected with the Threshold pin of time base circuit chip IC 202, the Vcc pin of time base circuit chip IC 202 is connected with the colelctor electrode of Saunas office VT201.
2. the alarm limit streaming afterheat generating system based on mineral hot furnace according to claim 1, it is characterized in that, described current-limiting circuit (10) is by triode VT101, triode VT102, triode VT103, triode VT104, triode VT105, triode VT106, N pole is connected with the base stage of triode VT101, the diode D101 that P pole is connected with the colelctor electrode of triode VT101 after resistance R101, one end is connected with the emitter stage of triode VT104, the inductance L 101 that the other end is connected with the emitter stage of triode VT102, positive pole is connected with the colelctor electrode of triode VT106, the electric capacity C101 that negative pole is connected with the emitter stage of triode VT104, the resistance R102 in parallel with electric capacity C101, be serially connected in the resistance R104 between the base stage of triode VT104 and the emitter stage of triode VT104, one end is connected with the base stage of triode VT104, the inductance L 102 that the other end is connected with the base stage of triode VT105 after resistance R107, P pole is connected with the emitter stage of triode VT104, the Zener diode D103 that N pole is connected with the emitter stage of triode VT103, P pole is connected with the emitter stage of triode VT103 after resistance R103, the diode D102 that N pole is connected with the colelctor electrode of triode VT105, one end is connected with the emitter stage of triode VT102, the resistance R105 that the other end is connected with the colelctor electrode of triode VT105, one end is connected with the base stage of triode VT105, the other end is connected with the emitter stage of triode VT102 after resistance R106, the slide rheostat RP101 that slide plate is connected with the base stage of triode VT103, the resistance R109 in parallel with resistance R107, one end is connected with the base stage of triode VT105, the resistance R108 that the other end is connected with the emitter stage of triode VT102, and positive pole is connected with the emitter stage of triode VT102, the electric capacity C102 that negative pole is connected with the tie point of inductance L 102 with resistance R107 forms, wherein, the base stage of triode VT101 is also connected with the colelctor electrode of triode VT103 and the colelctor electrode of triode VT102, the emitter stage of triode VT101 is connected with the base stage of triode VT102, the P pole of diode D101 is connected with the emitter stage of triode VT106, and the emitter stage of triode VT103 is connected with the base stage of triode VT106.
3. the alarm limit streaming afterheat generating system based on mineral hot furnace according to claim 2, it is characterized in that, described power circuit comprises triode VT1, triode VT2, triode VT3, positive pole is connected with the positive output end of diode bridge rectifier U1, the electric capacity C1 that negative pole is connected with the negative output terminal of diode bridge rectifier U1 after resistance R3, one end is connected with the positive pole of electric capacity C1, the resistance R1 that the other end is connected with the base stage of triode VT1, the electric capacity C2 in parallel with resistance R1, N pole is connected with the base stage of triode VT1, the diode D1 that P pole is connected with the colelctor electrode of triode VT3, negative pole is connected with the P pole of diode D1, the electric capacity C3 that positive pole is connected with the positive pole of electric capacity C1, P pole is connected with the emitter stage of triode VT2, the diode D2 that N pole is connected with the colelctor electrode of triode VT3, one end is connected with the colelctor electrode of triode VT2, the resistance R4 that the other end is connected with the emitter stage of triode VT3, positive pole is connected with the base stage of triode VT3, the electric capacity C4 that negative pole is connected with the emitter stage of triode VT3, the electric capacity C5 in parallel with electric capacity C4, one end is connected with the positive pole of electric capacity C3, the resistance R2 that the other end is connected with the positive pole of electric capacity C4, and P pole is connected with the positive pole of electric capacity C3, the diode D3 that N pole is connected with the P pole of electric capacity D1 after electric capacity C6 forms, wherein, the negative pole of electric capacity C1 is also connected with the colelctor electrode of triode VT1, the emitter stage of triode VT1 is connected with the base stage of triode VT2, and the colelctor electrode of triode VT2 is connected with the negative output terminal of diode bridge rectifier U1, and the positive pole of electric capacity C6 and the negative pole of electric capacity C6 form output.
4. the alarm limit streaming afterheat generating system based on mineral hot furnace according to claim 3, it is characterized in that, the colelctor electrode of described triode VT101 is connected with the base stage of triode VT3, the negative pole of electric capacity C101 is connected with the emitter stage of triode VT3, the positive pole of electric capacity C104 is connected with the positive pole of electric capacity C6, negative pole is connected with the negative pole of electric capacity C6, and the positive pole of electric capacity C201 is connected with the positive output end of diode bridge rectifier U1.
5. the alarm limit streaming afterheat generating system based on mineral hot furnace according to claim 4, it is characterized in that, described power amplification circuit is by triode VT4, triode VT5, triode VT6, triode VT7, one end is connected with the positive output end of diode bridge rectifier U1, the resistance R5 that the other end is connected with the emitter stage of triode VT5, one end is connected with the colelctor electrode of triode VT5, the resistance R9 that the other end is connected with the colelctor electrode of triode VT4 after resistance R8, be serially connected in the resistance R7 between the base stage of triode VT4 and the colelctor electrode of triode VT4, one end is connected with the positive output end of diode bridge rectifier U1, the resistance R6 that the other end is connected with the emitter stage of triode VT5, P pole is connected with the base stage of triode VT4, the diode D5 that N pole is connected with the base stage of triode VT7 after diode D4, one end is connected with the colelctor electrode of triode VT7, the resistance R11 that the other end is connected with the emitter stage of triode VT7 after inductance L 1, one end is connected with the colelctor electrode of triode VT7, the resistance R10 that the other end is connected with the emitter stage of triode VT7, and negative pole is connected with the colelctor electrode of triode VT7, the electric capacity C7 that positive pole is connected with the tie point of resistance R9 with resistance R8 after diode D6 forms, wherein, the emitter stage of triode VT4 is connected with the emitter stage of triode VT7, the emitter stage of triode VT4 is connected with the emitter stage of triode VT5, the base stage of triode VT7 is connected with the colelctor electrode of triode VT6, the emitter stage of triode VT6 is connected with the colelctor electrode of triode VT7, the base stage of triode VT6 is connected with the positive output end of diode bridge rectifier U1, the colelctor electrode of triode VT7 is connected with the emitter stage of triode VT5, the negative pole of electric capacity C7 is also connected with the negative output terminal of diode bridge rectifier U1, the negative pole of electric capacity C7 is also connected with the base stage of triode VT5 and the negative pole of electric capacity C6, the positive pole of electric capacity C7 is also connected with the P pole of diode D3.
6. the alarm limit streaming afterheat generating system based on mineral hot furnace according to claim 5, it is characterized in that, described triode VT1, triode VT2, triode VT3, triode VT4, triode VT5, triode VT6, triode VT101 triode VT102, triode VT103, triode VT104, triode VT105, triode VT201, triode VT202, triode VT204 and triode VT205 are NPN type triode, and triode VT7, triode VT106 and triode VT203 are PNP type triode.
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