CN101748229A - Hot blast valve cooling water system monitor - Google Patents
Hot blast valve cooling water system monitor Download PDFInfo
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- CN101748229A CN101748229A CN201010034343A CN201010034343A CN101748229A CN 101748229 A CN101748229 A CN 101748229A CN 201010034343 A CN201010034343 A CN 201010034343A CN 201010034343 A CN201010034343 A CN 201010034343A CN 101748229 A CN101748229 A CN 101748229A
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- cooling water
- hot blast
- water system
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Abstract
The invention mainly relates to the field of cooling water system monitoring equipment for metallurgical equipment, in particular o a hot blast valve cooling water system monitor, which is mainly applicable to monitoring a hot blast valve cooling water system required in the iron making process. The invention provides a hot blast valve cooling water system monitor which has the advantages of simple and compact structure, low cost, convenient operation and high monitoring accuracy and avoids long-range wire arrangement in a factory aiming at the prior technical monitoring defect of the hot blast valve cooling water system and an importance of the hot blast valve cooling water system to the normal work and the long service life of a hot blast valve. The hot blast valve cooling water system monitor comprises a central control unit, a signal conditioning circuit, a wireless data transmission module, a data storage module, a calendar clock unit, a liquid crystal display module, a sound-light alarm module and a power unit for supplying power for the above parts. The data of a cooling water temperature sensor and a pressure sensor is acquired by the monitor on a real-time basis through the signal conditioning circuit, stored by the data storage module after being processed by the central control unit and displayed and monitored by the liquid crystal display module on a real-time basis; and a field operator is reminded of superstandard data through the sound-light alarm module; and the data is wirelessly transmitted to a monitoring room through the wireless data transmission module so as to be convenient for the operator to remotely monitor.
Description
Technical field
The present invention is mainly concerned with metallurgical equipment cooling water system monitoring equipment field, refers in particular to a kind of hot blast valve cooling water system monitor, mainly is applicable to the monitoring of hot blast valve cooling water system required in the iron manufacturing process.
Background technology
Blast furnace ironmaking is to extract ferro element by the reductive method from iron ore, so need to consume a large amount of heats in iron manufacturing process, these heats are provided by the hot blast that hotblast stove is supplied with blast furnace.In iron manufacturing process, hot blast valve is responsible at the air outlet place of hotblast stove cutting off or the conducting hotblast stove is sent into the hot blast of blast furnace.Because the temperature of hot blast is usually about 1000 ℃, make the hot blast valve long term operation under hot environment, this just needs cooling system to continue hot blast valve is cooled off, if the supply of water coolant or problem has appearred in circulation, will quicken the ablation process of hot blast valve, even cause the scaling loss of hot blast valve.Under the normal circumstances, the cooling water pressure of hot blast valve cooling system supply should remain on (the valve port latus rectum is big more, and pressure requires high more) in 0.3～0.8MPa scope; The temperature of cooling water intake should be lower than 40 ℃, and the water outlet temperature should be lower than 60 ℃.The supply of water coolant or circulatory troubles can make the temperature and pressure of water coolant exceed above-mentioned value at short notice, so pass through monitoring to the temperature and pressure of hot blast valve cooling water, can in time find the fault of cooling water system, avoid because the cooling water system problem causes hot air valve body by scaling loss.In addition, the hot blast valve long term operation at high temperature, metallic substance is easy to generate the greying creep, cause material thermal conductivity to reduce, vicious cycle aggravation metal parent lattice structural changes (fracture, drainage occurring), make the temperature and pressure of water coolant slowly raise, by analysis to the long-term temperature and pressure data of hot blast valve cooling water, can judge the scaling loss situation of hot blast valve, carry out damping down maintenance preparation work in advance, also can be by the mode of regulating pondage and pressure, prolong valve work-ing life, make things convenient for the staff that hot blast valve is safeguarded.
Summary of the invention
The problem that the present invention solves is: at the defective of the existing Monitoring techniques of hot blast valve cooling water system with and to hot blast valve works better and the importance that increases the service life, the invention provides a kind of simple and compact for structure, with low cost, easy and simple to handle, monitoring accuracy is high and avoided the hot blast valve cooling water system monitor of the remote wiring of factory.
In order to solve the problems of the technologies described above, the solution that the present invention proposes is: a kind of hot blast valve cooling water Monitoring systems is characterized in that: it comprises central control unit, signal conditioning circuit, wireless data transmission module, data memory module, calendar clock unit, LCD MODULE, sound and light alarm module and is the power subsystem of above each several part power supply.Described central control unit is made up of digital signal processor and CPLD two portions, described digital signal processor is the primary processor of whole Monitoring systems, described CPLD is responsible for the logical calculated in the system, and it is connected to the EBI of digital signal processor.
Described digital signal processor links to each other with signal conditioning circuit, and the standard industry current signal of 4～20mA that described signal conditioning circuit can be come sensor transmissions is isolated and converted voltage signal in 0～3V scope to.Described digital signal processor links to each other with the calendar clock unit, links to each other with wireless data transmission module by the wireless data transmission module interface, links to each other with data memory module by the data memory module interface, links to each other with LCD MODULE by the display unit interface.
Described CPLD links to each other with the acousto-optic alarm module with key circuit.
The invention has the advantages that:
1, the present invention can gather, store, report to the police, show the temperature of cooling water and the pressure data of hot air valve plate cooling water intake, hot air valve plate cooling water outlet, hot air valve body cooling water intake and hot air valve body cooling water outlet simultaneously and data wireless is transferred to factory's Control Room at the scene that hot blast valve uses.
2, instrument of the present invention adopts flush bonding processor, is the ideal industrial device.Adopt 32 fixed-point dsps of Texas Instrument, the inner static CMOS technology of high-performance that adopts of digital processing unit, dominant frequency can be up to 150MHz; Built-in 16 road AD acquisition channels can conveniently carry out multi-channel data acquisition and carry out repeatedly data gathering at short notice; Built-in abundant peripheral functionality has been avoided complicated peripheral circuit.
3, built-in signal modulate circuit of the present invention adopts linear optical coupling and correspondent peripheral circuit, carry the 4～20mA that comes to isolate to transmitter, and convert digital signal processor AD interface acceptable sampled voltage to, reduced the interference of sensor signal, saved the complicated circuit of current/voltage conversion simultaneously the monitor internal circuit.
4, built-in wireless data sending sending module of the present invention can be in real time sends to factory's Control Room with the temperature and pressure data of water coolant by wireless mode, has avoided the difficulty of the remote wiring of factory.Factory's Control Room is as long as adopt the supporting wireless data sending receiver module of this monitor can pass through the temperature and pressure data of PC real time inspection water coolant.
5, built-in data memory module of the present invention can carry out read-write operation to USB flash disk easily, has satisfied the requirement of data logging large vol storage.Monitor can be derived sampled data by USB flash disk, transfers to PC, and data are carried out more deep processing, finishes follow-up data preparation and analysis etc.
6, front panel of the present invention has disposed the 128*64 matrix liquid-crystal display screen, as system's LCD MODULE, can show the data of each sampling in real time, makes things convenient for staff's every temperature and pressure data of real time inspection hot blast valve cooling water at the scene.
7, front panel of the present invention has disposed the sound and light alarm module, and by photodiode and hummer, whether real-time reminding field personnel temperature of cooling water and pressure condition exceed standard.Alarm lamp can be indicated the too fast three kinds of states of standard state, superscalar data and data climbing speed respectively.
Description of drawings
Fig. 1 is a skeleton construction synoptic diagram of the present invention
Fig. 2 is a digital signal processor circuit schematic diagram of the present invention
Fig. 3 is CPLD schematic circuit diagram of the present invention
Fig. 4 is a signal conditioning circuit schematic diagram of the present invention
Fig. 5 is a data memory module interface circuit schematic diagram of the present invention
Fig. 6 is a wireless data transmission module interface circuit schematic diagram of the present invention
Fig. 7 is a calendar clock element circuit schematic diagram of the present invention
Fig. 8 is a display unit interface circuit schematic diagram of the present invention
Fig. 9 is sound and light alarm of the present invention and key circuit schematic diagram
Figure 10 is power supply of the present invention and reset circuit schematic diagram
Marginal data
1, central control unit 16, decoupling capacitance
2, signal conditioning circuit 17, digital signal processor jtag interface
3, wireless data transmission module 18, CPLD jtag interface
4, data memory module 19, linear optical coupling chip
5, calendar clock unit 20, RS-232 electrical level transferring chip
6, LCD MODULE 21, RS-485 electrical level transferring chip
7, display unit connect 22, calendar clock chip
8, wireless data transmission module interface 23, ternary buffered gate chip
9, data memory module interface 24, hummer
10, digital signal processor 25, photodiode
11, CPLD 26,5V change the 1.8V power conversion chip
12, sound and light alarm module 27,5V change the 3.3V power conversion chip
13, reset circuit 28, chip resets
14, button 29, hand-reset button
15, power subsystem
Embodiment
Below with reference to accompanying drawing the present invention is described in further details.
As shown in Figure 1, this hot blast valve cooling water system monitor, it comprises central control unit 1 (being made up of digital signal processor 10 and PLD 11), signal conditioning circuit 2, wireless data transmission module 3, data memory module 4, calendar clock unit 5, LCD MODULE 6, display unit interface 7, wireless data transmission module interface 8, data memory module interface 9, sound and light alarm module 12, reset circuit 13, button 14 and power subsystem 15.Wherein, the two-way SCI serial data interface that digital signal processor 10 is integrated, the wireless data transmission module interface 8 of leading up to links to each other with wireless data transmission module 3, another road links to each other with data memory module 4 by data memory module interface 9, signal conditioning circuit 2 directly links to each other with digital signal processor 10 inner integrated AD converting unit interfaces, calendar clock unit 5 is connected to the I/O interface of digital signal processor 10, LCD MODULE 6 is connected to the data address bus interface of digital signal processor 10 by display unit interface 7, and sound and light alarm module 12 and button 14 are connected to the I/O interface of CPLD 11.CPLD 11 is connected to the EBI of digital signal processor 10, and both pass through bus communication.
As shown in Figure 2, the primary processor of central control unit 1 adopts the TMS320F2812 digital signal processor 10 of Texas Instruments (TI) in the present invention, crystal oscillator X1, capacitor C 67 and capacitor C 68 are formed the clock source of digital signal processor 1, can frequency multiplication of phase locked loop multiple in the digital signal processor 10 be set by software, as system's operation dominant frequency.Digital signal processor 10 links to each other with other circuit unit by each network-side slogan.
As shown in Figure 3, the Logical processing unit of monitor system adopts the EPM7128SQC100 CPLD 11 that ALTERA company produces in the present invention, wherein A8～A13 network port is connected to the address bus in the digital signal processor 10, the sheet that the CS1 port is connected in the digital signal processor 10 selects port, D1～D7 port is connected to the data bus interface in the digital signal processor 10, / WE and RD port are connected to the read-write state port in the digital signal processor 10, and CPLD 11 adopts the bus communication mode with digital signal processor 10.EXINT1～EXINT4 in the CPLD 11 links to each other with key circuit, links to each other with sound and light alarm module 12 by LED1～LED16.LCD C/D, LCDR/W, LCD E and LCD DIR are connected to LCD MODULE 6, as the control signal of LCD MODULE 6.Electric capacity is the power supply decoupling capacitance in the frame 16.Circuit is the program debug interface of digital signal processor 10 in the frame 17, can be burned in the internal memory of digital signal processor by downloading debugging interface the program of finishing writing, and also can connect the download debugging interface program is carried out on-line debugging by emulator.18 is the program download debugging interface of CPLD 10.
As shown in Figure 4, be one tunnel conditioning passage of signal conditioning circuit among the present invention 2, all the other 7 paths are consistent with this partial circuit.This circuit has adopted HCNR200 linear optical coupling chip 19 and supporting peripheral circuit, two wire system 4～20mA current signal of JACK6 mouth input can be isolated and linearity converts 0.5～2.5V voltage to, be connected to AD sampling interface in the digital signal processor 10 by the ADCINAx port.
As shown in Figure 5, be data memory module interface 9 circuit among the present invention, it is by MAX3232 chip 20, converts the first via serial data (SCITXDA and SCIRXDA) of digital signal processor 10 level signal of rs-232 standard to, by the JACK3 mouth data memory module 4 is operated.Data memory module 4 can carry out corresponding read-write operation to USB flash disk after receiving these data.
As shown in Figure 6, be wireless data transmission module interface 8 circuit among the present invention, it is by SP3485 chip 21, converts the second tunnel serial data of digital signal processor 10 level signal of RS-485 standard to, and this signal is operated wireless data transmission module 3 by the JACK4 mouth.
As shown in Figure 7, be calendar clock unit 5 circuit among the present invention.Calendar clock chip 22 has adopted real-time timepiece chip DS1302, capacitor C 19, capacitor C 20 and crystal oscillator X2 form the reference clock source of calendar clock chip 22, BT1 can provide power supply for calendar clock chip 22 for+3V lithium cell under the situation of system's power down, LED17 and LED18 are photodiode, LED18 lights when calendar clock chip 22 is battery-powered, and LED17 is when lighting when calendar clock chip 22 is powered by power supply.Calendar clock chip 22 links to each other by the I/O mouth of DS1302SCLK, DS1302IO and DS1302RST and digital signal processor 10, as the control signal wire of calendar clock chip 22.
As shown in Figure 8, be display unit interface circuit 7 among the present invention, digital processing unit 10 links to each other with ternary buffered gate 74ALVC16245 chip 20 by data bus, 3 tunnel control signal LCD C/D, the LCD R/W of LCD MODULE 6 link to each other with CPLD 11 with LCD E, the control signal of ternary buffered gate 74ALVC16245 chip 20 may command LCD MODULEs 6 and the break-make of data signal provide enough drive currents for LCD MODULE 6 simultaneously.LCD MODULE 6 is connected to JACK5.
As shown in Figure 9, be sound and light alarm module 12 among the present invention and button 14 circuit, sound and light alarm partly adopts hummer 21 and support circuit in the sound and light alarm module 12, and buzzer circuit is directly controlled by I/O mouth in the digital processing unit 10; The part of reporting to the police light adopts 16 photodiodes to form.Light is reported to the police and is partly all linked to each other with CPLD 11 with button.
As shown in figure 10, be power unit circuit among the present invention 15 and reset circuit 13, JACK1 input+5V direct current, capacitor C 1 and capacitor C 2 constitute electric source filter circuit, + 5V direct current by SPX1117-1.8 voltage stabilizing chip 26 convert to+the 1.8V direct current is the kernel power supply of digital processing unit 10, + 5V direct current converts simulation 3.3V power supply and the digital 3.3V power supply of two-way+3.3V direct current as system to by two SPX1117-3.3 voltage stabilizing chips 27, FB1 be magnetic bead be used for the single-point connected system digitally with simulation ground.The SP708R 28 pairs of digital signal processors of chip 10 that reset carry out electrification reset, and button 29 is connected directly to the chip 28 that resets and constitutes manual reset circuits, presses when button 29, and digital signal processor 10 resets.
Principle of work: referring to shown in, after system powered on, power subsystem provided continual and steady power supply for complete machine.System is in the inspection state, and to LCD MODULE 6, successively prompt system checks that sensor states, systems inspection USB flash disk insert state to the digital signal processor 10 in the central control unit 1 by display unit interface 7 output signals.The user can select whether to pass through the normal range of outer setting temperature of cooling water and pressure afterwards.After setting completed, monitor enters normal monitoring state, No. 8 transmitters (4 road cooling-water temperature sensors were gathered by signal conditioning circuit 2 in 2 seconds in every interval, 4 road cooling water pressure force transducers) current signal, 2 pairs of sampled signals of signal conditioning circuit are isolated and are converted the AD sampling interface that voltage signal is delivered to digital signal processor 10 to, 10 pairs of signals of digital signal processor carry out arithmetic mean filtering, each filtered data in real time is sent to LCD MODULE 6 to be shown, temporarily be stored in these data in the internal RAM simultaneously, and every interval is about 5 minutes, with 160 sampling numbers in pitch time according to the disposable data storage cell 4 that is sent to, data memory module 4 deposits data in USB flash disk by the write operation to USB flash disk.Simultaneously, digital signal processor 10 is judged filtered data according to the alarm rule that is provided with, trouble signal is transferred to wireless data transmission module 3, and be transferred to sound and light alarm module 12 by CPLD 11, wireless data transmission module 3 is sent to Control Room with data with communication, sound and light alarm module 12 is lighted corresponding trouble indicating lamp and is activated buzzer warning according to the type and the passage of trouble signal.During program run, the user can be by pressing " USB flash disk is pulled up " button, at any time pull up USB flash disk, with USB flash disk data importing PC, and can plug USB flash disk store sample data at any time, the time that digital signal processor 10 can read calendar clock unit 5 during each plug, and write USB flash disk by data memory module 4.The jtag interface of digital signal processor 10 and CPLD 11 is used for system when manufacturing, programming system code and system debug.
The above only is a preferred implementation of the present invention; protection scope of the present invention also not only is confined to the foregoing description; all technical schemes that belongs under the thinking of the present invention all belong to protection scope of the present invention; should be understood that; for those skilled in the art; in the some improvements and modifications that do not break away under the principle of the invention prerequisite, these improvements and modifications also should be considered as protection scope of the present invention.
Claims (5)
1. hot blast valve cooling water system monitor, it is characterized in that: it comprises central control unit (1) (being made up of digital signal processor (10) and PLD (11)), signal conditioning circuit (2), wireless data transmission module (3), data memory module (4), calendar clock unit (5), LCD MODULE (6), sound and light alarm module (12), reset circuit (13), button (14) and power subsystem (15).
2. hot blast valve cooling water system monitor according to claim 1 is characterized in that: described wireless data transmission module (3) links to each other with digital signal processor (10) by wireless data transmission module interface (8).
3. hot blast valve cooling water system monitor according to claim 1 is characterized in that: described signal conditioning circuit (3) is made up of linear optical coupling chip (19) and support circuit, directly links to each other with digital signal processor (10).
4. hot blast valve cooling water system monitor according to claim 1 is characterized in that: described LCD MODULE (6) links to each other with digital signal processor (10) by display unit interface (7).
5. hot blast valve cooling water system monitor according to claim 1 is characterized in that: described monitor has adopted CPLD (11) as the system logic arithmetic element.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201010034343A CN101748229A (en) | 2010-01-19 | 2010-01-19 | Hot blast valve cooling water system monitor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201010034343A CN101748229A (en) | 2010-01-19 | 2010-01-19 | Hot blast valve cooling water system monitor |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN101748229A true CN101748229A (en) | 2010-06-23 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201010034343A Pending CN101748229A (en) | 2010-01-19 | 2010-01-19 | Hot blast valve cooling water system monitor |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102359638A (en) * | 2011-08-13 | 2012-02-22 | 黄山良业阀门有限公司 | Valve electric device for field bus and wireless control |
| CN103885472A (en) * | 2012-12-19 | 2014-06-25 | 深圳市大族激光科技股份有限公司 | Multi-mode universal control system of cooler and method thereof |
| CN108873785A (en) * | 2018-07-26 | 2018-11-23 | 江苏银佳电气设备有限公司 | A kind of intelligence air-valve control device |
-
2010
- 2010-01-19 CN CN201010034343A patent/CN101748229A/en active Pending
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102359638A (en) * | 2011-08-13 | 2012-02-22 | 黄山良业阀门有限公司 | Valve electric device for field bus and wireless control |
| CN103885472A (en) * | 2012-12-19 | 2014-06-25 | 深圳市大族激光科技股份有限公司 | Multi-mode universal control system of cooler and method thereof |
| CN103885472B (en) * | 2012-12-19 | 2017-03-29 | 大族激光科技产业集团股份有限公司 | A kind of cooler multi-mode general-purpose control system and method |
| CN108873785A (en) * | 2018-07-26 | 2018-11-23 | 江苏银佳电气设备有限公司 | A kind of intelligence air-valve control device |
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Open date: 20100623 |