CN105463181A - Monitoring method for thermal treatment furnace - Google Patents
Monitoring method for thermal treatment furnace Download PDFInfo
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- CN105463181A CN105463181A CN201410461759.XA CN201410461759A CN105463181A CN 105463181 A CN105463181 A CN 105463181A CN 201410461759 A CN201410461759 A CN 201410461759A CN 105463181 A CN105463181 A CN 105463181A
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Abstract
The invention discloses a monitoring method for a thermal treatment furnace. The monitoring method comprises the following steps that firstly, communication connection is established, a datum processing unit arranged on an operation site of the thermal treatment furnace and an upper computer arranged on a remote monitoring center are made to be in power line carrier communication through a high-voltage transmission line; secondly, operation parameters are detected, the temperature, voltage, current and power of the thermal treatment furnace are detected through a temperature transmitter, a voltage sensor, a current sensor and an active power convertor respectively; thirdly, a site signal is processed; fourthly, datum remote transmission is conducted; and fifthly, datum remote treatment and fault alarming are conducted. The monitoring method for the thermal treatment furnace is easy to operate and convenient to implement. Extra cable cost is not increased, site wiring is not needed and restriction of telecom operators is shaken off by setting up a power line carrier communication line through existing power networks. Maximum guarantee is provided on the aspects of the cost, site construction and system reliability.
Description
Technical field
The present invention relates to a kind of monitoring method, especially relate to a kind of monitoring method of heat treatment furnace.
Background technology
Thermal treatment is the key link ensureing engineering goods internal soundness, and electric-heating heat treatment stove is industrial furnace metal works being carried out to metal heat treatmet, and it is due to homogeneous heating, and each position of heated parts is heated well-balanced and is used widely.
Existing heat treatment furnace monitoring method mainly contains following two kinds: the first is that adopt Radio Transmission Technology to realize data transmission, its cost is higher; The second is, is transmitted by dedicated data line, and it needs rewiring, time-consuming, effort, inconvenient maintenance; And the control signal to send due to Surveillance center's upper computer is weak electric signal, is easily subject to the interference of surrounding environment in transmitting procedure, and after the transmission carrying out growing distance, due to the loss of circuit, signal is easily distortion also.
Summary of the invention
Technical problem to be solved by this invention is for above-mentioned deficiency of the prior art, there is provided a kind of heat treatment furnace monitoring method based on power line carrier, PLC, it does not need to lay signal-transmitting cable separately, and data transmission immunity from interference is strong, long transmission distance, input cost is low.
For solving the problems of the technologies described above, the technical solution used in the present invention is: a kind of monitoring method of heat treatment furnace, is characterized in that, comprises the following steps:
Step one, establishes a communications link: the data processing unit being laid in heat treatment furnace job site and the upper computer being laid in remote monitoring center carry out power line carrier, PLC by high voltage transmission line; Described data processing unit comprises signal processor and the signal conditioning circuit connected with described signal processor respectively and storer;
Step 2, working parameter detects: adopt the furnace temperature of temperature transmitter to described heat treatment furnace to detect, to obtain temperature signal; The voltage of voltage sensor to described heat treatment furnace is adopted to detect, to obtain voltage signal; The current signal of current sensor to described heat treatment furnace is adopted to detect, to obtain current signal; Type Active Power Converter is adopted to change described voltage signal and current signal, to obtain power signal; Described voltage sensor and current sensor all connect with described Type Active Power Converter, and described temperature transmitter, voltage sensor, current sensor and Type Active Power Converter all connect with described signal conditioning circuit;
Step 3, on-site signal process: described temperature transmitter, voltage sensor, current sensor and Type Active Power Converter are respectively by described temperature signal, voltage signal, current signal and power signal transmissions carry out pre-treatment to described signal conditioning circuit, described signal conditioning circuit is to described temperature signal, voltage signal, current signal and power signal amplify respectively successively, filtering and analog-to-digital conversion process, then described signal processor is given by the digital data transmission that obtains after process, the signal received stores in which memory by described signal processor on the one hand, carry out packing on the other hand to be sent,
Step 4, data remote transmission: packed data are sent to the first power carrier transceiver by described signal processor, described Data Modulation is become power carrier signal by described first power carrier transceiver, then described high voltage transmission line is sent to through the first power line coupler, second power carrier transceiver receives described power carrier signal through the second power line coupler from described high voltage transmission line, then carry out demodulation, and send to described upper computer; Described first power line coupler and the second power line coupler all connect with described high voltage transmission line, described first power carrier transceiver connects with described signal processor and the first power line coupler respectively, and described second power carrier transceiver connects with described upper computer and the second power line coupler respectively;
Step 5, remote data process and fault alarm: the signal received and the signal threshold value preset compare by described upper computer, relevant temperature threshold value, voltage threshold, current threshold and power threshold is exceeded if arbitrary in described temperature signal, voltage signal, current signal and power signal, then described upper computer shows failure message on its monitoring interface, and sends guard signal by the warning device connected with it; Otherwise, then step 2 is returned.
The monitoring method of above-mentioned a kind of heat treatment furnace, is characterized in that: the touch-screen that described upper computer comprises main frame and connects with described main frame.
The monitoring method of above-mentioned a kind of heat treatment furnace, is characterized in that: described first power carrier transceiver and the second power carrier transceiver equal PLT-22 type modem chip.
The monitoring method of above-mentioned a kind of heat treatment furnace, is characterized in that: described temperature threshold is 1600 DEG C.
The monitoring method of above-mentioned a kind of heat treatment furnace, is characterized in that: described power threshold is 25KW.
The present invention compared with prior art has the following advantages: simple to operate, realization convenience, utilize existing electric power networks to build Power Line Carrier Communication, not only do not need to increase extra cost, also not needing field wiring, more without the need to being limited by telecom operators.Greatly ensured from cost, site operation and system reliability everyway.
Below by drawings and Examples, technical scheme of the present invention is described in further detail.
Accompanying drawing explanation
Fig. 1 is schema of the present invention.
Embodiment
As shown in Figure 1, the present invention includes following steps:
Step one, establishes a communications link: the data processing unit being laid in heat treatment furnace job site and the upper computer being laid in remote monitoring center carry out power line carrier, PLC by high voltage transmission line; Described data processing unit comprises signal processor and the signal conditioning circuit connected with described signal processor respectively and storer;
Step 2, working parameter detects: adopt the furnace temperature of temperature transmitter to described heat treatment furnace to detect, to obtain temperature signal; The voltage of voltage sensor to described heat treatment furnace is adopted to detect, to obtain voltage signal; The current signal of current sensor to described heat treatment furnace is adopted to detect, to obtain current signal; Type Active Power Converter is adopted to change described voltage signal and current signal, to obtain power signal; Described voltage sensor and current sensor all connect with described Type Active Power Converter, and described temperature transmitter, voltage sensor, current sensor and Type Active Power Converter all connect with described signal conditioning circuit;
Step 3, on-site signal process: described temperature transmitter, voltage sensor, current sensor and Type Active Power Converter are respectively by described temperature signal, voltage signal, current signal and power signal transmissions carry out pre-treatment to described signal conditioning circuit, described signal conditioning circuit is to described temperature signal, voltage signal, current signal and power signal amplify respectively successively, filtering and analog-to-digital conversion process, then described signal processor is given by the digital data transmission that obtains after process, the signal received stores in which memory by described signal processor on the one hand, carry out packing on the other hand to be sent,
Step 4, data remote transmission: packed data are sent to the first power carrier transceiver by described signal processor, described Data Modulation is become power carrier signal by described first power carrier transceiver, then described high voltage transmission line is sent to through the first power line coupler, second power carrier transceiver receives described power carrier signal through the second power line coupler from described high voltage transmission line, then carry out demodulation, and send to described upper computer; Described first power line coupler and the second power line coupler all connect with described high voltage transmission line, described first power carrier transceiver connects with described signal processor and the first power line coupler respectively, and described second power carrier transceiver connects with described upper computer and the second power line coupler respectively;
Step 5, remote data process and fault alarm: the signal received and the signal threshold value preset compare by described upper computer, relevant temperature threshold value, voltage threshold, current threshold and power threshold is exceeded if arbitrary in described temperature signal, voltage signal, current signal and power signal, then described upper computer shows failure message on its monitoring interface, and sends guard signal by the warning device connected with it; Otherwise, then step 2 is returned.
In the present embodiment, the touch-screen that described upper computer comprises main frame and connects with described main frame.
In the present embodiment, described first power carrier transceiver and the second power carrier transceiver equal PLT-22 type modem chip.
In the present embodiment, described temperature threshold is 1600 DEG C.
In the present embodiment, described power threshold is 25KW.
The above; it is only preferred embodiment of the present invention; not the present invention is imposed any restrictions, every above embodiment is done according to the technology of the present invention essence any simple modification, change and equivalent structure change, all still belong in the protection domain of technical solution of the present invention.
Claims (5)
1. a monitoring method for heat treatment furnace, is characterized in that, comprises the following steps:
Step one, establishes a communications link: the data processing unit being laid in heat treatment furnace job site and the upper computer being laid in remote monitoring center carry out power line carrier, PLC by high voltage transmission line; Described data processing unit comprises signal processor and the signal conditioning circuit connected with described signal processor respectively and storer;
Step 2, working parameter detects: adopt the furnace temperature of temperature transmitter to described heat treatment furnace to detect, to obtain temperature signal; The voltage of voltage sensor to described heat treatment furnace is adopted to detect, to obtain voltage signal; The current signal of current sensor to described heat treatment furnace is adopted to detect, to obtain current signal; Type Active Power Converter is adopted to change described voltage signal and current signal, to obtain power signal; Described voltage sensor and current sensor all connect with described Type Active Power Converter, and described temperature transmitter, voltage sensor, current sensor and Type Active Power Converter all connect with described signal conditioning circuit;
Step 3, on-site signal process: described temperature transmitter, voltage sensor, current sensor and Type Active Power Converter are respectively by described temperature signal, voltage signal, current signal and power signal transmissions carry out pre-treatment to described signal conditioning circuit, described signal conditioning circuit is to described temperature signal, voltage signal, current signal and power signal amplify respectively successively, filtering and analog-to-digital conversion process, then described signal processor is given by the digital data transmission that obtains after process, the signal received stores in which memory by described signal processor on the one hand, carry out packing on the other hand to be sent,
Step 4, data remote transmission: packed data are sent to the first power carrier transceiver by described signal processor, described Data Modulation is become power carrier signal by described first power carrier transceiver, then described high voltage transmission line is sent to through the first power line coupler, second power carrier transceiver receives described power carrier signal through the second power line coupler from described high voltage transmission line, then carry out demodulation, and send to described upper computer; Described first power line coupler and the second power line coupler all connect with described high voltage transmission line, described first power carrier transceiver connects with described signal processor and the first power line coupler respectively, and described second power carrier transceiver connects with described upper computer and the second power line coupler respectively;
Step 5, remote data process and fault alarm: the signal received and the signal threshold value preset compare by described upper computer, relevant temperature threshold value, voltage threshold, current threshold and power threshold is exceeded if arbitrary in described temperature signal, voltage signal, current signal and power signal, then described upper computer shows failure message on its monitoring interface, and sends guard signal by the warning device connected with it; Otherwise, then step 2 is returned.
2. according to the monitoring method of a kind of heat treatment furnace according to claim 1, it is characterized in that: the touch-screen that described upper computer comprises main frame and connects with described main frame.
3. according to the monitoring method of a kind of heat treatment furnace described in claim 1 or 2, it is characterized in that: described first power carrier transceiver and the second power carrier transceiver equal PLT-22 type modem chip.
4. according to the monitoring method of a kind of heat treatment furnace described in claim 1 or 2, it is characterized in that: described temperature threshold is 1600 DEG C.
5. according to the monitoring method of a kind of heat treatment furnace described in claim 1 or 2, it is characterized in that: described power threshold is 25KW.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
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| CN201410461759.XA CN105463181A (en) | 2014-09-11 | 2014-09-11 | Monitoring method for thermal treatment furnace |
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| CN201410461759.XA CN105463181A (en) | 2014-09-11 | 2014-09-11 | Monitoring method for thermal treatment furnace |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106191423A (en) * | 2016-06-30 | 2016-12-07 | 共享铸钢有限公司 | Control method is patrolled and examined in heat-treatment furnace stokehold patrolling control system and heat-treatment furnace stokehold |
| CN106300660A (en) * | 2016-08-13 | 2017-01-04 | 毛强平 | A kind of transmission line equipment long-distance monitoring method and system |
| CN107723457A (en) * | 2017-09-14 | 2018-02-23 | 首钢京唐钢铁联合有限责任公司 | Voice early warning method and device |
-
2014
- 2014-09-11 CN CN201410461759.XA patent/CN105463181A/en active Pending
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106191423A (en) * | 2016-06-30 | 2016-12-07 | 共享铸钢有限公司 | Control method is patrolled and examined in heat-treatment furnace stokehold patrolling control system and heat-treatment furnace stokehold |
| CN106191423B (en) * | 2016-06-30 | 2017-11-28 | 共享铸钢有限公司 | Heat-treatment furnace stokehold patrolling control system and heat-treatment furnace stokehold inspection control method |
| CN106300660A (en) * | 2016-08-13 | 2017-01-04 | 毛强平 | A kind of transmission line equipment long-distance monitoring method and system |
| CN106300660B (en) * | 2016-08-13 | 2019-01-18 | 广州特为电力科技有限公司 | A kind of transmission line equipment long-distance monitoring method and system |
| CN107723457A (en) * | 2017-09-14 | 2018-02-23 | 首钢京唐钢铁联合有限责任公司 | Voice early warning method and device |
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Application publication date: 20160406 |