CN112522662A - On-line monitoring and alarming device for gas carburization equipment - Google Patents
On-line monitoring and alarming device for gas carburization equipment Download PDFInfo
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- CN112522662A CN112522662A CN202011293611.1A CN202011293611A CN112522662A CN 112522662 A CN112522662 A CN 112522662A CN 202011293611 A CN202011293611 A CN 202011293611A CN 112522662 A CN112522662 A CN 112522662A
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- output end
- rotating speed
- signal output
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- carbon potential
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- C—CHEMISTRY; METALLURGY
- C23—COATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; CHEMICAL SURFACE TREATMENT; DIFFUSION TREATMENT OF METALLIC MATERIAL; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL; INHIBITING CORROSION OF METALLIC MATERIAL OR INCRUSTATION IN GENERAL
- C23C—COATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; SURFACE TREATMENT OF METALLIC MATERIAL BY DIFFUSION INTO THE SURFACE, BY CHEMICAL CONVERSION OR SUBSTITUTION; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL
- C23C8/00—Solid state diffusion of only non-metal elements into metallic material surfaces; Chemical surface treatment of metallic material by reaction of the surface with a reactive gas, leaving reaction products of surface material in the coating, e.g. conversion coatings, passivation of metals
- C23C8/06—Solid state diffusion of only non-metal elements into metallic material surfaces; Chemical surface treatment of metallic material by reaction of the surface with a reactive gas, leaving reaction products of surface material in the coating, e.g. conversion coatings, passivation of metals using gases
- C23C8/08—Solid state diffusion of only non-metal elements into metallic material surfaces; Chemical surface treatment of metallic material by reaction of the surface with a reactive gas, leaving reaction products of surface material in the coating, e.g. conversion coatings, passivation of metals using gases only one element being applied
- C23C8/20—Carburising
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- C—CHEMISTRY; METALLURGY
- C21—METALLURGY OF IRON
- C21D—MODIFYING THE PHYSICAL STRUCTURE OF FERROUS METALS; GENERAL DEVICES FOR HEAT TREATMENT OF FERROUS OR NON-FERROUS METALS OR ALLOYS; MAKING METAL MALLEABLE, e.g. BY DECARBURISATION OR TEMPERING
- C21D1/00—General methods or devices for heat treatment, e.g. annealing, hardening, quenching or tempering
- C21D1/62—Quenching devices
- C21D1/63—Quenching devices for bath quenching
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- C—CHEMISTRY; METALLURGY
- C21—METALLURGY OF IRON
- C21D—MODIFYING THE PHYSICAL STRUCTURE OF FERROUS METALS; GENERAL DEVICES FOR HEAT TREATMENT OF FERROUS OR NON-FERROUS METALS OR ALLOYS; MAKING METAL MALLEABLE, e.g. BY DECARBURISATION OR TEMPERING
- C21D11/00—Process control or regulation for heat treatments
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- C—CHEMISTRY; METALLURGY
- C21—METALLURGY OF IRON
- C21D—MODIFYING THE PHYSICAL STRUCTURE OF FERROUS METALS; GENERAL DEVICES FOR HEAT TREATMENT OF FERROUS OR NON-FERROUS METALS OR ALLOYS; MAKING METAL MALLEABLE, e.g. BY DECARBURISATION OR TEMPERING
- C21D9/00—Heat treatment, e.g. annealing, hardening, quenching or tempering, adapted for particular articles; Furnaces therefor
- C21D9/0006—Details, accessories not peculiar to any of the following furnaces
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- C—CHEMISTRY; METALLURGY
- C21—METALLURGY OF IRON
- C21D—MODIFYING THE PHYSICAL STRUCTURE OF FERROUS METALS; GENERAL DEVICES FOR HEAT TREATMENT OF FERROUS OR NON-FERROUS METALS OR ALLOYS; MAKING METAL MALLEABLE, e.g. BY DECARBURISATION OR TEMPERING
- C21D9/00—Heat treatment, e.g. annealing, hardening, quenching or tempering, adapted for particular articles; Furnaces therefor
- C21D9/0062—Heat-treating apparatus with a cooling or quenching zone
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- G—PHYSICS
- G08—SIGNALLING
- G08B—SIGNALLING OR CALLING SYSTEMS; ORDER TELEGRAPHS; ALARM SYSTEMS
- G08B21/00—Alarms responsive to a single specified undesired or abnormal condition and not otherwise provided for
- G08B21/18—Status alarms
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- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Materials Engineering (AREA)
- Mechanical Engineering (AREA)
- Physics & Mathematics (AREA)
- Metallurgy (AREA)
- Organic Chemistry (AREA)
- Thermal Sciences (AREA)
- Crystallography & Structural Chemistry (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Business, Economics & Management (AREA)
- Emergency Management (AREA)
- General Physics & Mathematics (AREA)
- Solid-Phase Diffusion Into Metallic Material Surfaces (AREA)
Abstract
The on-line monitoring and alarming device of the gas carburizing equipment comprises a carbon potential signal output end of a carbon potential control instrument, a temperature signal output end of a carburizing furnace temperature control instrument, a temperature signal output end of a tempering furnace temperature control instrument, a rotating speed signal output end of a first rotating speed sensor for detecting the rotating speed of an atmosphere stirring fan, a rotating speed output end of a second rotating speed sensor for detecting the rotating speed of a quenching oil stirring fan, and a liquid level signal output end of a liquid level sensor for detecting the liquid level of quenching oil, which are connected with a signal input end of a controller through signal lines, wherein an alarming signal output end of the controller is connected with an alarming signal input end of an alarm through the signal lines; the controller receives signals such as temperature, carbon potential, stirring fan rotating speed and quenching oil liquid level sent by each device in real time, data comparison is carried out through a program which is compiled in advance in the controller, if data are found to be abnormal, an alarm is sent out through the alarm, field personnel are informed to process the signals in time, the qualified rate of products is improved, and the quality defect of batch products is avoided.
Description
Technical Field
The invention relates to a special monitoring device for metal material heat treatment gas carburizing equipment, in particular to an on-line monitoring and alarming device for gas carburizing equipment.
Background
The traditional gas carburizing equipment for metal material heat treatment comprises a carburizing furnace and a tempering furnace, wherein the carburizing furnace and the tempering furnace are electric heating furnaces with furnace temperature controlled by temperature control instruments, the temperature control instruments obtain the temperature in the furnaces through thermocouples arranged on the furnaces, injected propane gas is regulated and controlled through a carbon potential control instrument, and an oxygen probe is used as carbon potential feedback to achieve the purpose of automatically controlling the carbon potential; in the automatic operation process of the equipment, in order to ensure the product quality by monitoring the stable operation of the system, various parameters of the carburizing furnace and the tempering furnace are manually monitored at intervals, and the furnace temperature, the rotating speed of the atmosphere stirring fan, the rotating speed of the quenching oil stirring fan and the liquid level of the quenching oil are recorded by meter reading, so that the manual labor intensity is high, the real-time monitoring cannot be realized, and the quality defects of batch products can be caused once the abnormal operation of the equipment is not found in time.
Disclosure of Invention
The invention aims to provide an on-line monitoring and alarming device for gas carburizing equipment, which can monitor the gas carburizing equipment in real time, alarm when the equipment is abnormally operated, inform field personnel of processing in time and avoid quality defects of batch products.
The technical scheme of the invention is as follows: gas carburization equipment on-line monitoring alarm device, including carbon potential control instrument, carburizing furnace temperature control instrument, tempering furnace temperature control instrument, its characterized in that: the device also comprises a controller, an alarm, a first rotating speed sensor for detecting the rotating speed of the atmosphere stirring fan, a second rotating speed sensor for detecting the rotating speed of the quenching oil stirring fan and a liquid level sensor for detecting the liquid level of quenching oil, wherein the carbon potential signal output end of a carbon potential control instrument, the temperature signal output end of a carburizing furnace temperature control instrument, the temperature signal output end of a tempering furnace temperature control instrument, the rotating speed signal output end of the first rotating speed sensor, the rotating speed output end of the second rotating speed sensor and the liquid level signal output end of the liquid level sensor are respectively connected with the signal input end of the controller through signal lines, and the alarm signal output end of the controller is connected with the alarm signal input end of the alarm through signal lines.
And a touch display screen is arranged on the controller.
The device also comprises a carburizing furnace and a tempering furnace, wherein a carburizing furnace temperature sensor is arranged in the carburizing furnace, a tempering furnace temperature sensor is arranged in the tempering furnace, and a temperature signal output end of the carburizing furnace temperature sensor and a temperature signal output end of the tempering furnace temperature sensor are respectively connected with a signal input end of the controller through signal lines.
The carbon potential detection end of the resistance-type carbon potential meter is arranged in the carburizing furnace, and the carbon potential signal output end of the resistance-type carbon potential meter is connected with the carbon potential signal input end of the controller through a signal wire.
The invention has the advantages that: the controller receives signals such as temperature, carbon potential, rotating speed of the stirring fans, liquid level of quenching oil and the like sent by each device in real time, data comparison is carried out through a program which is compiled in advance in the controller, if data are found to be abnormal, the controller controls the alarm to give an alarm to inform field personnel of timely processing, manual control or remedial measures are adopted, the qualification rate of products is improved, the stability of product quality is guaranteed, the quality defects of batch products are avoided, meanwhile, whether each stirring fan rotates at a constant speed or not is monitored, whether the liquid level of the quenching oil is in a normal position or not is monitored, integral monitoring can be carried out on the gas carburizing equipment, and therefore whether the equipment operates normally or not is monitored, manpower is further saved, and the liquid level of the quenching oil and the rotating speed of each stirring fan can be monitored in real; the technical scheme of the application has no destructive change on the original gas carburizing equipment, does not influence the automatic control mode of the original equipment, and is quick, simple and convenient to install and arrange on site. When the controller finds that the working state of each device of the carburizing equipment is abnormal or the measured data is close to an alarm critical value, the numerical value fluctuates frequently and other abnormal phenomena, the controller can display various warning information including alarm information by using a screen of the touch display screen besides recording and storing, and prompts the field personnel to check in time, thereby ensuring the stable quality of products; the controller obtains temperature data of the carburizing furnace and the tempering furnace through the carburizing furnace temperature sensor and the tempering furnace temperature sensor, compares the temperature data of the carburizing furnace temperature control instrument and the tempering furnace temperature control instrument by taking the data as reference, and can find out equipment faults in time by carrying out double monitoring, thereby further ensuring the stable product quality; oxygen probe is compared to resistance-type carbon potential appearance, and inside its sense terminal can stretch into the carburizing furnace, the carbon potential data of obtaining are comparatively accurate, and the controller carries out dual monitoring through the data that resistance-type carbon potential appearance and oxygen probe obtained, and the monitoring process is more reliable to through the contrast, can monitor the operating mode of oxygen probe in succession, in time maintain and change the oxygen probe.
Drawings
FIG. 1 is a block diagram of the on-line monitoring and alarming device of the gas carburizing equipment.
Fig. 2 is a schematic view of the installation structure of the revolution speed sensor in the present invention.
In the figure, a stirring shaft 1, a hoop 2, a screw 3, a detection end of a proximity switch 4, an equipment shell 5, a proximity switch 6, a signal output end of a proximity switch 7 and a signal wire 8 are arranged.
Detailed Description
On-line monitoring and alarming device for bulk carburizing equipment, as shown in fig. 1, which comprises a carbon potential control instrument, a carburizing furnace temperature control instrument, a tempering furnace temperature control instrument, a controller, an alarm, a first rotating speed sensor for detecting the rotating speed of an atmosphere stirring fan, a second rotating speed sensor for detecting the rotating speed of a quenching oil stirring fan, and a liquid level sensor for detecting the liquid level of quenching oil, wherein the carbon potential signal output end of the carbon potential control instrument, the temperature signal output end of the carburizing furnace temperature control instrument, the temperature signal output end of the tempering furnace temperature control instrument, the rotating speed signal output end of the first rotating speed sensor, the rotating speed output end of the second rotating speed sensor, the liquid level signal output ends of the liquid level sensors are respectively connected with the signal input end of the controller through signal lines, and the alarm signal output end of the controller is connected with the alarm signal input.
And a touch display screen is arranged on the controller.
The device also comprises a carburizing furnace and a tempering furnace, wherein a carburizing furnace temperature sensor is arranged in the carburizing furnace, a tempering furnace temperature sensor is arranged in the tempering furnace, and a temperature signal output end of the carburizing furnace temperature sensor and a temperature signal output end of the tempering furnace temperature sensor are respectively connected with a signal input end of the controller through signal lines.
The carbon potential detection end of the resistance-type carbon potential meter is arranged in the carburizing furnace, and the carbon potential signal output end of the resistance-type carbon potential meter is connected with the carbon potential signal input end of the controller through a signal wire.
The controller is also called a programmable logic controller, a PLC controller, a microcomputer or an industrial personal computer, and at least comprises a CPU processing module, a storage module, an interface module, a power supply module, a clock module, a man-machine interaction module, a communication module and the like, wherein the modules are arranged on a mainboard, the modules are in circuit connection through a printed circuit on the mainboard, the mainboard is arranged in a hard shell with protection, and the controller can be also provided with peripheral equipment such as a voice alarm, a programmer, a remote communicator and the like according to needs; the touch display screen receives a signal transmitted by the controller, indicates a required state through a programmed control program, triggers an alarm, calls alarm information to be displayed on the touch display screen and stores the alarm information in a memory of the touch display screen, the touch display screen is used as a human-computer interaction interface of the controller, the touch display screen is integrated on a mainboard of the controller, a display end of the touch display screen is arranged on the surface of a shell of the controller, the touch display screen is connected with a circuit of the controller through a printed circuit, or a signal input end of the touch display screen is connected with an output end of the controller through a signal line and a video line, and a signal output end of the touch display screen is connected with an input end of the controller through a signal line; when the controller outputs the alarm signal, the controller also outputs the signal to the display screen, displays the alarm information on the touch display screen and stores the alarm information in the memory, thereby improving the stability and controllability of the processed product.
The controller comprises a communication module, a signal sending end of the communication module is connected with a signal receiving end of a field lower computer (such as a linkage alarm machine, a production control room computer host and the like) through a signal line, an alarm signal is broadcast in time through the field lower computer, and workers are prompted to arrive at the carburizing equipment for processing at the first time; a wireless signal sending end of the communication module is in signal communication connection with a wireless signal receiving end of a remote lower computer (such as a mobile phone, a mobile computer and the like) through wireless signals, and an alarm signal is sent to an appointed person through a wireless network at the first time to supervise the processing progress and the processing result.
In the application, the process of monitoring the real-time state of the gas carburizing equipment by the controller is executed by a programmed PLC program, the controller carries out logic processing on the input signals by the programmed program according to temperature signals, carbon potential abnormal signals, stirring fan rotating speed signals, quenching oil liquid level signals and the like received in real time, the logic operation result is sent to the touch display screen, the touch display screen indicates the states of various devices or processes according to the received signals by the programmed configuration program, the states are generally normal states or abnormal states, when an alert range value is set, the state also comprises an early warning state, alarm information can be checked on the touch display screen when the state is abnormal, the controller can also control the alarm to send out audible and visual alarms by outputting alarm signals, and the indication lamps beside corresponding items in the touch display screen flicker or color change indicate the abnormality, and simultaneously recording each anomaly in a storage module thereof. In addition, various process starting signals of the carburizing furnace, starting signals of the tempering furnace, starting signals of the atmosphere stirring fan and starting signals of the quenching oil stirring fan can be transmitted to the controller through signal lines for recording, so that complete production monitoring records are formed.
The controller is preferably an integral controller with a liquid crystal touch display screen, and the PLC touch screen integrated machine is specifically produced by Shenzhen beauty treatment and has the model number EX 2N-70H. The liquid level sensor is preferably provided with an explosion-proof oil level sensor with upper and lower limit detection positions, the liquid level sensor is specifically provided with an explosion-proof oil level switch which is sold by Tianjin Bili technology and has the model number of BL-YW120-F/2/F-300, the explosion-proof oil level switch is arranged on a quenching oil tank according to the instruction of a product specification, and the middle section between the upper and lower detection positions of the explosion-proof oil level switch is adjusted to be arranged at a standard liquid level. The resistance-type carbon potential meter mainly comprises a resistance-method carbon potential probe, and the resistance-method carbon potential probe is preferably a differential-mode resistance-method carbon potential probe. The alarm is a commercial product and comprises an alarm lamp and a buzzer, the alarm signal input end of the alarm comprises an electric control switch of the alarm, the alarm receives a control signal, or after the electric switch of the alarm receives the closing of an electric signal circuit of the controller, the alarm lamp emits flickering red light to give out light alarm, and the buzzer generates sound to give out voice alarm.
The specific construction example is that an imported (i.e. a gas carburizing device of oriental japan) carburizing device with the model number of H052 in the same department is modified, a carburizing furnace in the device is subjected to program control by adopting an ohm dragon PLC, the temperature of the carburizing furnace and the carbon potential CP are controlled by a certain brand of temperature control instrument and a carbon potential control instrument, the temperature of a tempering furnace is also controlled by the brand of temperature control instrument, redundant signal channels of the original temperature control instrument are set, and the surplus signal channels are connected to a signal input port of a PLC touch screen integrated machine through signal lines; setting redundant signal channels of the original carbon potential control instrument, and connecting the redundant signal channels into a signal input port of the PLC touch screen all-in-one machine through a signal line; setting redundant signal channels of a temperature control instrument of the tempering furnace, and connecting the redundant signal channels into a signal input port of the PLC touch screen all-in-one machine through a signal line; the first and second rotation speed sensors adopt proximity switches to detect rotation speed, as shown in fig. 2, a screw 3 is vertically fixed on the outer circular surface of a stirring shaft 1 in a stirring fan through a hoop 2, the stirring shaft drives the screw to rotate for a circle every time the stirring shaft rotates for a circle, by utilizing the mechanical operation principle, a proximity switch 6 is arranged on an equipment shell 5, a detection end 4 of the proximity switch is approximately opposite to the rotation path of the screw, a signal output end 7 of the proximity switch sends the rotation frequency of the screw to a controller through a signal line 8, and the controller calculates the rotation speed of the stirring shaft through the frequency; the structure has the advantages that: the structure is simple, the installation is easy, the structure of the original gas carburizing equipment is not damaged, and the signal output end of the proximity switch is connected into the signal input port of the PLC touch screen all-in-one machine through a signal wire; the PLC touch screen all-in-one machine carries out logic processing on input signals through a programmed program, logic operation results are transmitted into the touch display screen through a serial interface, the touch display screen indicates the states (normal or abnormal) of various devices or processes according to received signals through a programmed configuration program, if abnormal, alarm information can be looked up on the touch display screen, the PLC touch screen all-in-one machine can also carry out acousto-optic alarm through output control, but only reminds equipment operators to carry out processing, and the normal operation of the carburizing furnace cannot be interrupted.
Claims (4)
1. Gas carburization equipment on-line monitoring alarm device, including carbon potential control instrument, carburizing furnace temperature control instrument, tempering furnace temperature control instrument, its characterized in that: the device also comprises a controller, an alarm, a first rotating speed sensor for detecting the rotating speed of the atmosphere stirring fan, a second rotating speed sensor for detecting the rotating speed of the quenching oil stirring fan and a liquid level sensor for detecting the liquid level of quenching oil, wherein the carbon potential signal output end of a carbon potential control instrument, the temperature signal output end of a carburizing furnace temperature control instrument, the temperature signal output end of a tempering furnace temperature control instrument, the rotating speed signal output end of the first rotating speed sensor, the rotating speed output end of the second rotating speed sensor and the liquid level signal output end of the liquid level sensor are respectively connected with the signal input end of the controller through signal lines, and the alarm signal output end of the controller is connected with the alarm signal input end of the alarm through signal lines.
2. The on-line monitoring and alarming device of the gas carburizing equipment according to claim 1, characterized in that: and a touch display screen is arranged on the controller.
3. The on-line monitoring and alarming device of the gas carburizing equipment according to claim 1, characterized in that: the device also comprises a carburizing furnace and a tempering furnace, wherein a carburizing furnace temperature sensor is arranged in the carburizing furnace, a tempering furnace temperature sensor is arranged in the tempering furnace, and a temperature signal output end of the carburizing furnace temperature sensor and a temperature signal output end of the tempering furnace temperature sensor are respectively connected with a signal input end of the controller through signal lines.
4. The on-line monitoring and alarming device of the gas carburizing equipment according to claim 1, characterized in that: the carbon potential detection end of the resistance-type carbon potential meter is arranged in the carburizing furnace, and the carbon potential signal output end of the resistance-type carbon potential meter is connected with the carbon potential signal input end of the controller through a signal wire.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011293611.1A CN112522662A (en) | 2020-11-18 | 2020-11-18 | On-line monitoring and alarming device for gas carburization equipment |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011293611.1A CN112522662A (en) | 2020-11-18 | 2020-11-18 | On-line monitoring and alarming device for gas carburization equipment |
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| Publication Number | Publication Date |
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| CN112522662A true CN112522662A (en) | 2021-03-19 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN202011293611.1A Pending CN112522662A (en) | 2020-11-18 | 2020-11-18 | On-line monitoring and alarming device for gas carburization equipment |
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Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2042081U (en) * | 1988-06-21 | 1989-08-02 | 陕西微机改造渗碳炉服务部 | Gaseous-carburization controlling instrument using resistance method |
| CN202717834U (en) * | 2012-08-16 | 2013-02-06 | 南京科达新控仪表有限公司 | Carbon potential control system |
| CN103792890A (en) * | 2012-10-29 | 2014-05-14 | 天龙科技炉业(无锡)有限公司 | Centralized control technology of multi-set heat treatment devices |
| CN205934001U (en) * | 2016-08-15 | 2017-02-08 | 邯郸市翔天数控工程有限公司 | Well formula cementation furnace with visit monitor function |
| CN108251787A (en) * | 2018-01-23 | 2018-07-06 | 南京科达新控仪表有限公司 | A kind of carbo-nitriding automatic control system |
| CN211036015U (en) * | 2019-03-15 | 2020-07-17 | 吉林北方捷凯传动轴有限公司 | Chain type heat treatment tempering furnace operation monitoring device |
-
2020
- 2020-11-18 CN CN202011293611.1A patent/CN112522662A/en active Pending
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2042081U (en) * | 1988-06-21 | 1989-08-02 | 陕西微机改造渗碳炉服务部 | Gaseous-carburization controlling instrument using resistance method |
| CN202717834U (en) * | 2012-08-16 | 2013-02-06 | 南京科达新控仪表有限公司 | Carbon potential control system |
| CN103792890A (en) * | 2012-10-29 | 2014-05-14 | 天龙科技炉业(无锡)有限公司 | Centralized control technology of multi-set heat treatment devices |
| CN205934001U (en) * | 2016-08-15 | 2017-02-08 | 邯郸市翔天数控工程有限公司 | Well formula cementation furnace with visit monitor function |
| CN108251787A (en) * | 2018-01-23 | 2018-07-06 | 南京科达新控仪表有限公司 | A kind of carbo-nitriding automatic control system |
| CN211036015U (en) * | 2019-03-15 | 2020-07-17 | 吉林北方捷凯传动轴有限公司 | Chain type heat treatment tempering furnace operation monitoring device |
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Application publication date: 20210319 |
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