CN2419561Y

CN2419561Y - Intellectual controller for smoke eliminating and dust collecting for industrial funnace

Info

Publication number: CN2419561Y
Application number: CN00217570U
Authority: CN
Inventors: 李根长
Original assignee: Individual
Current assignee: Individual
Priority date: 2000-05-11
Filing date: 2000-05-11
Publication date: 2001-02-14
Anticipated expiration: 2010-05-11

Abstract

The utility model relates to an intellectual controller for smoke eliminating and dust collecting for an industrial furnace; a step motor and a blower are connected with the exterior of the utility model. The utility model comprises a main control module for an SCM, a driving module for power amplification, a drive module for a blower, a display module for an LED, an alarm prompting module, an input control key and connectors arranged on all modules, wherein, the main control module for an SCM can be respectively connected with the connectors on other modules through the connector on the main control module for an SCM. The utility model can automatically adjust the degree of the opening of a valve for supplying oxygen according to the variation of the concentration of black smoke in the combustion and coal supplying processes of the furnace; the adjustable range is wide; not only peripheral devices of a control system can be simplified, but also the utility model can be used on furnaces with different types; the utility model can prompt an operator to rightly operate the device.

Description

Industrial furnace smoke abatement and dust control intelligent controller

The utility model relates to a kind of industrial furnace smoke abatement and dust control intelligent controller.

As China Patent No. is the disclosed a kind of existing industrial furnace smoke consuming apparatus of ZL99200835.2, and its smoke abatement and dust control realizes by manual oxygenating catalytic combustion method.As shown in Figure 1, the process of its smoke abatement and dust control is: before coal, and first turn controller time switch, and press start button, time-delay relay is connected fan power, blower fan work in the time that the controller time switch is set.At this moment, air-flow enters the chance that burner hearth increases big molecule of raw gas and oxygen molecule collision through oxygenating valve and slide valve through special tuyere, utilizes the air-flow method of scratching, under the catalytic action of special-purpose catalyst, raw gas is fully burnt, thereby has eliminated black smoke.

This device is in whole smoke abatement and dust control process, the control function of controller is relatively poor, the Operation and Maintenance inconvenience, particularly in the smoke elimination process, the aperture of oxygenating valve is constant, and enters the air quantity of burner hearth by the slide valve manual adjustments, is difficult to accomplish consistent with the institute's required airflow requirement that eliminates smoke, even cause that fire box temperature descends, and has a strong impact on the quality of product.

The purpose of this utility model is to provide a kind of can control the aperture, easy and simple to handle of oxygenating valve by demand, and can improve the quality of products industrial furnace smoke abatement and dust control intelligent controller.

The purpose of this utility model is to realize like this, a kind of industrial furnace smoke abatement and dust control intelligent controller, its external stepping motor and blower fan, be characterized in, it comprises: the single-chip microcomputer main control module, the power amplification driver module, the blower fan driver module, the LED display module, the alarm module, input control key and each connector that is separately positioned on each module, the single-chip microcomputer main control module links to each other with connector on other each module respectively by the connector on it, wherein: the single-chip microcomputer main control module, be used to gather and store the information of input, carry out information processing, and control the demonstration of light-emitting diode display and external stepper motor respectively by input information, blower fan and buzzer are by pre-provisioning request action; The power amplification driver module is used to control the external stepping motor of driving by predetermined rule work; The blower fan driver module is used for controlling exactly the opening and closing exactly of external blower fan; The LED display module, display setting parameter and operational factor, and alarm prompt shows; The alarm module is used for that operating process is reached predetermined target and points out and abnormality is carried out alarm; The input control key is used for the relevant control parameter of initialization system, the start-up operation button when meeting an urgent need manual operation switch and operate as normal when the system failure is provided.

Owing to adopted described technical solution, made to the utlity model has following advantage:

1. can add the aperture that the Changing Pattern of black smoke concentration in the coal combustion process is regulated the oxygenating valve automatically according to stove, make the air quantity that enters burner hearth require consistent with smoke elimination institute required airflow, saved the slide valve of original manual adjustments air quantity, control system ancillary equipment is simplified, more convenient operation is moved more reliable.

2. the utility model can be provided with that key is provided with oxygenating valve duration of valve opening, valve opening, closing valve time and the change curve (as straight line, exponential curve, logarithmic curve etc.) when driving valve or closing valve by the parameter in the input module.

3. adjustable range is wide, and adjustment process is level and smooth, is convenient to use on dissimilar stoves.

4. can in time use sound and digital display reminding fireman proper operation equipment.

5. drive the aperture of oxygenating valve by the Single-chip Controlling stepping motor, make the air quantity that enters burner hearth require consistent with smoke elimination institute required airflow, not only eliminated black smoke effectively, and by an amount of oxygenating, raw gas in the burner hearth can fully burn, and the interior temperature of burner hearth is remained unchanged basically, obtains energy-conservation effect indirectly, simultaneously guaranteed that also the product processes condition is constant, guaranteed product quality; Avoided causing furnace temperature decline, fire door to return phenomenons such as cigarette or chimney over-emitting black exhaust because of manual operations is improper.

6. the control system energy consumption is low.

Below in conjunction with drawings and Examples the utility model is explained in detail.

Fig. 1 is the flow chart that its manual oxygenating catalytic combustion of existing industrial furnace smoke abatement device carries out smoke abatement and dust control;

Fig. 2 is the circuit function block diagram of the utility model intelligent controller;

Fig. 3 is the electrical interconnection figure that the utility model part single-chip microcomputer main control module and part are imported control key;

Fig. 4 is the electrical interconnection figure that the utility model part single-chip microcomputer main control module, part are imported control key and LED display module;

Fig. 5 is the electrical interconnection figure of the utility model blower fan driver module and part power amplification driver module;

Fig. 6 is the electrical interconnection figure of the utility model part single-chip microcomputer main control module and part power amplification driver module;

Fig. 7 is the electrical interconnection figure of the utility model part single-chip microcomputer main control module;

Fig. 8 is the control flow chart of the utility model control smoke abatement and dust control.

As shown in Figure 2, the utility model industrial furnace smoke abatement and dust control intelligent controller, it comprises: single-chip microcomputer main control module, power amplification driver module, blower fan driver module, LED display module, alarm module, input control key and be separately positioned on each connector on each module, the single-chip microcomputer main control module links to each other with connector on other each module respectively by the connector on it, wherein:

Single-chip microcomputer main control module 1 is used to gather and store the information of input, carries out information processing, and controls the demonstration of light-emitting diode display 4 respectively and external stepping motor 8, blower fan 7 and buzzer moves by pre-provisioning request by input information.As Fig. 3, Fig. 4, Fig. 6 and shown in Figure 7, this single-chip microcomputer main control module 1 comprise among CPU among Fig. 3 and memory portion 11, Fig. 4 timer counter part 12, the photoelectricity isolated part 13 among Fig. 6 and the control among Fig. 7 and regularly part 14 form.Wherein, as shown in Figure 3, in CPU and memory portion 11, D ₁For 80C31 is a singlechip chip, D2 is the 74HC373 latch, latchs the data of transmitting between CPU and EPROM, D ₃Be the 27C23 readable and writable memory, the software of storage control system work, D ₄Be the data of transmitting between 74HC74 latches CPU and timer conter, RI1, RI2, RI7 are integrated exclusion.TLP1 is a photoelectrical coupler; As shown in Figure 4, in timer counter part 12, D ₅Be the 81C55 timer conter.As shown in Figure 6, in photoelectricity isolated part 13, TLP11, TLP12 are photoelectrical coupler, and model is TLP521-4.R13 is integrated exclusion; As shown in Figure 7, in control and timing part 14, FU2 is system's fuse, and TC is a transformer, and UC1 is a rectifier bridge, and UR1 is the AN7805 three terminal regulator, C1, C2, C5, C6 filter capacitor, and the UR1 output DC is for work such as CPU, EPROM.UC2 is a rectifier bridge, and C3, C4, C7, C8 are filter capacitor, and UR2 is the AN7805 three terminal regulator, and UC2 output direct current is for buzzer work, and also UT3～the UT7 for Fig. 6 provides dc source, and A1, A2 are the LM555 timer.BATT is a rechargeable battery, and UD1～UD3 is a diode.R18～R25, R2 are resistance; C12, C13, C16 are electrochemical capacitor, and C14, C15, C17 are electric capacity, and OSC is a crystal oscillator; UT1, UT2 are transistor, and this control and timing part 14 form clocks, electrification reset, power-down data protection, WatchDog Timer function.As Fig. 3, Fig. 4, Fig. 6 and shown in Figure 7, the P1.0～P1.7 pin in the CPU among Fig. 3 and the memory portion 11 links to each other with the photoelectricity isolated part 13 corresponding pin among Fig. 6; Control among PX1 in CPU among Fig. 3 and the memory portion 11, PX2 pin and Fig. 7 links to each other with part 14 respective foot regularly; Control among timer counter part 12 among L1 pin in CPU among Fig. 3 and the memory portion 11 and Fig. 4 and Fig. 7 links to each other with part 14 respective foot regularly; The respective foot of the timer counter part 12 among P3.4, the PWR in the CPU among Fig. 3 and the memory portion 11, PWD, P2.7, PRST, PCLK pin and Fig. 4 links to each other; Control among P3.5 pin in CPU among Fig. 3 and the memory portion 11 and Fig. 7 links to each other with part 14 respective foot regularly; Control among E5 in CPU among Fig. 3 and the memory portion 11 and Fig. 7 and part 14 regularly link to each other with photoelectricity isolated part 13 corresponding pin among Fig. 6.

Power amplification driver module 2 is used to control the external stepping motor 8 of driving by predetermined rule work.As shown in Figure 5 and Figure 6, it is made up of the promotion part 22 among the drive part among Fig. 5 21 and Fig. 6.Wherein, as shown in Figure 5, in drive part 21, STEP MOTOR is the stepping motor winding, DG-45 is a connector socket, UDP1～UDP5 is a fly-wheel diode, UTP1～UTP5 is for driving the power transistor of stepping motor 8 work, FUSE2 is a stepping motor driver element fuse, UC6 is a rectifier bridge, C40～C53 is a dc filter capacitor, and it is the induce one control signal of the control bidirectional thyristor control utmost point in the base control signal of UTP1～UTP5 power transistor and the blower fan driver module of connector that this direct current provides power supply, J1 for stepping motor 8 work; As shown in Figure 6, in promoting part 22, J4 is a connector, and UT3～UT7 is an amplifying triode, and its output provides base current for the drive part 21 power transistor UTP1～UTP5 among Fig. 5.

Blower fan driver module 3; be used for controlling exactly the opening and closing exactly of external blower fan 7, as shown in Figure 5, FUSE3 is a fuse; RELAY is an A.C. contactor; the work of control blower fan, FAN is a blower fan, BAT is a bidirectional thyristor; control signal is provided for the A.C. contactor control coil; C0 is an ac capacitor, and R0 is an AC resistance, for bidirectional thyristor provides protection.～220V (L) ,～220V (N) respectively with Fig. 7 in control and the part 14 regularly of single-chip microcomputer main control module in L, the N end of primary side alternating current 220V of transformer TC link to each other.

LED display module 4, display setting parameter and operational factor and alarm prompt show, when oxygenating valve 9 reaches the maximum opening of setting, are shown by the flicker of software control light-emitting diode display, and the rapid coal of prompting fireman finishes.As shown in Figure 4, D6, D7 are display driver, and the driving LED display shows that LED1～LED5 is a display, and R15, R16 are integrated exclusion, and J5-1, J5-2 are connector.

Alarm module 5, being used for that operating process is reached predetermined target points out and abnormality is carried out alarm, when oxygenating valve 9 reached the maximum opening of setting, buzzer continued to send the buzzer of a period of time, and the rapid coal of prompting fireman finishes.As shown in Figure 6, in this module 5, J3 is a connector, and UT8 is a transistor, provides control signal to buzzer, and BUZZER buzzer, R26, R29 are resistance.The VDD of the timing part 14 of single-chip microcomputer main control module 1 is connected among terminals VDD and Fig. 7.

Input control key 6 is used for the relevant control parameter of initialization system, as the opening and closing curve type of valve, the opening time of valve, the aperture of valve etc., and the start-up operation button during manual operation switch and the operate as normal of meeting an urgent need when the system failure is provided.As Fig. 4 and shown in Figure 3, it is made up of the control section among the button part among Fig. 4 61 and Fig. 3 62.Wherein: as shown in Figure 4, in button part 61, J6-1, J6-2 are connector, and S1 is a parameter storage control key, S2 is that parameter reduces control key, and S3 is that parameter increases control key, and S4 is that parameter is provided with control key, S5 is that parameter is patrolled apparent control key, and S6 is the manual control key of fault, and R16 is integrated exclusion; As shown in Figure 3, in control section 62, J2-1, J2-2 are connector, and C18～C21 is for removing to shake electric capacity.START is for starting control key.

In sum, the utility model controller is in the smoke elimination process, as shown in Figure 8, do not need slide valve, controller is directly controlled the aperture of oxygenating valve, the aperture of oxygenating valve can be driven by the stepping motor that is connected with the oxygenating valve, make the air quantity that enters burner hearth require consistent with smoke elimination institute required airflow, not only eliminate smoke effectively, and because the abundant burning of coal, can not cause that fire box temperature descends, play energy-saving effect indirectly, and guarantee quality by the product that stove is produced of the utility model controller control.In addition, it controls the method for operation with single-chip microcomputer, to satisfy user's different requirements.

Claims

1. industrial furnace smoke abatement and dust control intelligent controller, its external stepping motor and blower fan, it is characterized in that, it comprises: single-chip microcomputer main control module, power amplification driver module, blower fan driver module, LED display module, alarm module, input control key and be separately positioned on each connector on each module, the single-chip microcomputer main control module links to each other with connector on other each module respectively by the connector on it, wherein:

The single-chip microcomputer main control module is used to gather and store the information of input, carries out information processing, and controls the demonstration of light-emitting diode display respectively and external stepper motor, blower fan and buzzer moves by pre-provisioning request by input information;

The power amplification driver module is used to control the external stepping motor of driving by predetermined rule work;

The blower fan driver module is used for controlling exactly the opening and closing exactly of external blower fan;

The LED display module, display setting parameter and operational factor, and alarm prompt shows;

The alarm module is used for that operating process is reached predetermined target and points out and abnormality is carried out alarm;

The input control key is used for the relevant control parameter of initialization system, the start-up operation button when meeting an urgent need manual operation switch and operate as normal when the system failure is provided.