CN105369188A - Carbon potential operator - Google Patents

Carbon potential operator Download PDF

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Publication number
CN105369188A
CN105369188A CN201510784703.2A CN201510784703A CN105369188A CN 105369188 A CN105369188 A CN 105369188A CN 201510784703 A CN201510784703 A CN 201510784703A CN 105369188 A CN105369188 A CN 105369188A
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carbon potential
input interface
carbon
signal input
furnace atmosphere
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CN201510784703.2A
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CN105369188B (en
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张志鹏
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Jiangsu Dong Feng Technology Co., Ltd.
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Jiangsu Fengdong Thermal Technology Co Ltd
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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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  • Chemical & Material Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Engineering & Computer Science (AREA)
  • Materials Engineering (AREA)
  • Mechanical Engineering (AREA)
  • Metallurgy (AREA)
  • Organic Chemistry (AREA)
  • Investigating Or Analyzing Materials By The Use Of Electric Means (AREA)
  • Measuring Oxygen Concentration In Cells (AREA)

Abstract

The invention discloses a carbon potential operator which comprises a main controller and a mode setting unit. A programmable logic controller serves as the main controller. The main controller comprises a first carbon potential operation unit and a second carbon potential operation unit. The first carbon potential operation unit comprises a first temperature signal input interface, a first carbon potential signal input interface, a first carbonic oxide signal input interface and a first carbon potential output interface. The second carbon potential operation unit comprises a second temperature signal input interface, a second carbon potential signal input interface, a second carbonic oxide signal input interface and a second carbon potential output interface. The mode setting unit is connected with the first carbon potential signal input interface, the first carbonic oxide signal input interface, the second carbon potential signal input interface and the second carbonic oxide signal input interface. By means of the carbon potential operator, the using convenience and calculation accuracy of the carbon potential operator are greatly improved.

Description

A kind of carbon potential exerciser
Technical field
The present invention relates to equipment for Heating Processing and manufacture field, be specifically related to a kind of carbon potential exerciser.
Background technology
In heat treated carburizing equipment, need the parameter to the carbon potential in stove (being called for short " carbon potential ") to measure and manage, the content of the temperature of carbon potential and furnace atmosphere, the content of carbon potential gas (carbonic acid gas or oxygen) and carbon monoxide is closely related.According to the kind of selected carbon potential gas, the characterizing method of carbon potential comprises oxygen gesture method and titanium dioxide carbon potential method, oxygen gesture method can use expression formula Cp=f (T, O2, CO) represent, and carbonic acid gas formula rule available expression Cp=f (T, CO2, CO) represent, wherein: Cp represents the carbon potential in furnace atmosphere, T represents the temperature of furnace atmosphere, and O2 represents the content of the oxygen in furnace atmosphere, CO2 represents the content of carbonic acid gas in furnace atmosphere, and CO represents the content of carbon monoxide in furnace atmosphere.
The measurement and calculation of carbon potential is a very complicated process, therefore, generally all use special carbon-potential control device to realize the object of carbon potential measurement and management, this special carbon-potential control device is mostly developed specially with micro-chip and is formed or be equipped with special software by computer, because development cost are higher, production quantity is less, thus causes price very expensive, and this have impact on applying of product to a certain extent.In addition, existing carbon-potential control device generally only has a carbon potential calculation unit, and its calculation accuracy is difficult to ensure.
Summary of the invention
The present invention solves above technical problem, adopt programmable logic controller, this programmable logic controller comprises two carbon potential calculation unit, parameter required for only carbon potential need being calculated inputs to two carbon potential calculation unit of programmable logic controller respectively, and two carbon potential calculation unit can complete carbon potential respectively and calculate.
The carbon potential exerciser that the present invention proposes, comprises principal controller and mode setting unit, and described principal controller adopts programmable logic controller, and described principal controller comprises the first carbon potential calculation unit and the second carbon potential calculation unit.Described first carbon potential calculation unit comprises the first temperature signal input interface, the first carbon potential signal input interface, the first CO signals input interface and the first carbon potential output interface; Described first temperature signal input interface is for inputting the temperature value of furnace atmosphere, described first carbon potential signal input interface is for inputting the content of the first carbon potential gas in furnace atmosphere, described first CO signals input interface is for inputting the content of carbon monoxide in furnace atmosphere, and described first carbon potential output interface is for exporting described first carbon potential that calculates of carbon potential calculation unit.Described second carbon potential calculation unit comprises the second temperature signal input interface, the second carbon potential signal input interface, the second CO signals input interface and the second carbon potential output interface, described second temperature signal input interface is for inputting the temperature value of furnace atmosphere, described second carbon potential signal input interface is for inputting the content of the second carbon potential gas in furnace atmosphere, and described second CO signals input interface is for inputting the content of carbon monoxide in furnace atmosphere; The carbon potential that described second carbon potential output interface calculates for exporting described second carbon potential calculation unit.Described mode setting unit is connected with described first carbon potential signal input interface, the first CO signals input interface, the second carbon potential signal input interface and the second CO signals input interface respectively.Described mode selecting unit is used for: the kind selecting described first carbon potential gas, and the kind of described first carbon potential gas comprises oxygen and carbonic acid gas; Select described first CO signals input interface to obtain the mode of the content of carbon monoxide in furnace atmosphere, the mode that described first CO signals input interface obtains the content of carbon monoxide in furnace atmosphere comprises fixed value input mode and dynamic value input mode; Select the kind of described second carbon potential gas, the kind of described second carbon potential gas comprises oxygen and carbonic acid gas; Select described second CO signals input interface to obtain the mode of the content of carbon monoxide in furnace atmosphere, the mode that described second CO signals input interface obtains the content of carbon monoxide in furnace atmosphere comprises fixed value input mode and dynamic value input mode.
As a further improvement on the present invention, described principal controller also comprises carbon potential comparing unit, described carbon potential comparing unit calculates unit and the second carbon potential respectively and calculates unit and be connected with described first carbon potential, described carbon potential comparing unit calculates the absolute value of the difference between the carbon potential that unit calculates for the carbon potential that obtains described first carbon potential calculation unit and calculate and described second carbon potential.
As a further improvement on the present invention, described carbon potential comparing unit comprises deviation alarm output interface, when the absolute value of the difference between the described first carbon potential calculation carbon potential that calculates of unit and described second carbon potential calculate carbon potential that unit calculates exceedes default warning value, described deviation alarm output interface output bias guard signal.
As a further improvement on the present invention, described first carbon potential calculation unit also comprises the first ammonia input interface, and described first ammonia signal input interface is for inputting the content of ammonia in furnace atmosphere; Described second carbon potential calculation unit also comprises the second ammonia signal input interface, and described second ammonia signal input interface is for inputting the content of ammonia in furnace atmosphere.
As a further improvement on the present invention, described first carbon potential output interface and described second carbon potential output interface export the voltage signal of 1-5V.
As a further improvement on the present invention, described first carbon potential output interface and described second carbon potential output interface export the current signal of 4-20mA.
Compared with prior art, the carbon potential exerciser that the present invention proposes has following technique effect: 1. adopt programmable logic controller, implants carbon potential calculation formula by the method for program, simplifies carbon potential calculation process; 2. adopt two carbon potential calculation unit, make the sign of carbon potential more accurately and reliably.
Accompanying drawing explanation
Fig. 1 is the structural representation of one embodiment of the present invention;
Fig. 1 comprises principal controller 1, mode setting unit 2, first carbon potential calculation unit 3, second carbon potential calculation unit 4, carbon potential comparing unit 5, first temperature signal input interface 31, first carbon potential signal input interface 32, first CO signals input interface 33, first carbon potential output interface 34, first ammonia signal input interface 35, second temperature signal input interface 41, second carbon potential signal input interface 42, second CO signals input interface 43, second carbon potential output interface 44, second ammonia signal input interface 45 and deviation alarm output interface 51.
Embodiment
Carbon potential exerciser in the present embodiment, comprise principal controller 1 and mode setting unit 2, described principal controller adopts programmable logic controller (PLC), described principal controller comprises the first carbon potential calculation unit 3 and the second carbon potential calculation unit 4, two carbon potential calculation unit are set, make the sign of carbon potential more accurately and reliably.
Described first carbon potential calculation unit 3 comprises the first temperature signal input interface 31, first carbon potential signal input interface 32, first CO signals input interface 33 and the first carbon potential output interface 34; Described first temperature signal input interface 31 is for inputting the temperature of furnace atmosphere; Described first carbon potential signal input interface 32 is for inputting the content of the first carbon potential gas in furnace atmosphere, and described first carbon potential gas is the one in oxygen and carbonic acid gas; Described first CO signals input interface 33 is for inputting the content of the carbon monoxide in furnace atmosphere; Described first carbon potential output interface 34 exports the carbon potential that described first carbon potential calculation unit 3 calculates.
Described second carbon potential calculation unit 4 comprises the second temperature signal input interface 41, second carbon potential signal input interface 42, second CO signals input interface 43 and the second carbon potential output interface 44; Described second temperature signal input interface 41 is for inputting the temperature of furnace atmosphere; Described second carbon potential signal input interface 42 is for inputting the content of the second carbon potential gas in furnace atmosphere, and described second carbon potential gas is the one in oxygen and carbonic acid gas; Described second CO signals input interface 43 is for inputting the content of the carbon monoxide in furnace atmosphere; Described second carbon potential output interface 44 exports the carbon potential that described second carbon potential calculation unit 4 calculates.
Described mode setting unit 2 is connected with described first carbon potential signal input interface 32, described first CO signals input interface 33, described second carbon potential signal input interface 42 and described second CO signals input interface 43 respectively; Described mode setting unit is used for making following selection: 1. the kind selecting described first carbon potential gas, and the kind of optional first carbon potential gas comprises oxygen and carbonic acid gas; 2. select described first CO signals input interface 33 to input the content of carbon monoxide in furnace atmosphere in which way, optional manner comprises fixed value input mode and dynamic value input mode, and fixed value input mode refers to that described first CO signals input interface 33 inputs a fixed value as the content of carbon monoxide in furnace atmosphere; Dynamic value input mode refer to described first CO signals input interface 33 input connected carbon monoxide probe detection to furnace atmosphere in the content of carbon monoxide as input value; 3. select the kind of described second carbon potential gas, the kind of optional second carbon potential gas comprises oxygen and carbonic acid gas; 4. select described second CO signals input interface 43 to input the content of carbon monoxide in furnace atmosphere in which way, optional manner comprises fixed value input mode and dynamic value input mode, and fixed value input mode refers to that described first CO signals input interface 43 inputs a fixed value as the content of carbon monoxide in furnace atmosphere; Dynamic value input mode refer to described second CO signals input interface 43 input connected carbon monoxide probe detection to furnace atmosphere in the content of carbon monoxide as input value.
Described principal controller in the present embodiment also comprises carbon potential comparing unit 5, described carbon potential comparing unit 5 calculates unit 3 and the second carbon potential respectively and calculates unit 4 and be connected with described first carbon potential, described carbon potential comparing unit 5 comprises deviation alarm output interface 51, described carbon potential comparing unit 5 calculates the absolute value of the difference between carbon potential that unit 4 calculates for calculating the described first carbon potential calculation carbon potential that calculates of unit 3 and described second carbon potential, when this value exceedes default warning value, described deviation alarm output interface 51 sends deviation alarm signal.Described carbon potential comparing unit 5 can contrast the deviation between described first carbon potential calculation unit 3 and the described second carbon potential value that calculates separately of carbon potential calculation unit 4, thus the accuracy of carbon potential calculation result is verified, make the sign of carbon potential more accurately and reliably.
When described deviation alarm output interface 51 does not send deviation alarm signal, illustrate that the difference that described first carbon potential that calculates of carbon potential calculation unit 3 and described second carbon potential calculates the carbon potential that unit 4 calculates is less, show the preparation of carbon potential calculation result reliably; Otherwise, when described deviation alarm output interface 51 sends deviation alarm signal, illustrate that the difference that the described first carbon potential calculation carbon potential that calculates of unit 3 and described second carbon potential calculate between carbon potential that unit 4 calculates is excessive, carbon potential calculation result accurately cannot be obtained, need to recalculate carbon potential.
The principle of work of the carbon potential exerciser in the present embodiment is as follows:
The input parameter needed for carbon potential that described first carbon potential calculation unit 3 calculates furnace atmosphere comprises the temperature value of furnace atmosphere, carbon monoxide content in the content of the first carbon potential gas in furnace atmosphere and furnace atmosphere, above-mentioned three parameters are respectively by the first temperature signal input interface 31, first carbon potential signal input interface 32 and the first CO signals input interface 33 input, input parameter directly calculates carbon potential through the computation program of described first carbon potential calculation unit 3 inside establishment, the voltage signal that described first carbon potential output interface 34 exports 1-5v exports as standard carbon potential signal.
Described first temperature signal input interface 31, described first carbon potential signal input interface 32 and described first CO signals input interface 33 obtain the mode of respective input parameter: described first temperature signal input interface 31 is connected with the temp probe be arranged in stove, to obtain the temperature value of furnace atmosphere, described first carbon potential signal input interface 32 selection is popped one's head in the oxygen be arranged in stove or carbonic acid gas is popped one's head in is connected, to obtain the content of the first carbon potential gas in furnace atmosphere, when described first carbon potential signal input interface 32 select and oxygen pop one's head in be connected time, the content of the first carbon potential gas of its input is the content of the oxygen in stove in atmosphere, when described first carbon potential signal input interface 32 select and carbonic acid gas pop one's head in be connected time, the content of the first carbon potential gas of its input is the content of the carbonic acid gas in stove in atmosphere, concrete selection is arranged by described mode setting unit 2, protect the first CO signals input interface 33 and pop one's head in the carbon monoxide be arranged in stove and be connected, when the carbon monoxide content in stove is fixed and content is known, described first CO signals input interface 33 can be selected directly to input this fixed value as input value, otherwise described first CO signals input interface 33 select input carbon monoxide probe detection to furnace atmosphere in carbon monoxide content as input value, concrete selection is arranged by described mode setting unit 2.
In like manner, the input parameter needed for carbon potential that described second carbon potential calculation unit 4 calculates furnace atmosphere inputs respectively by the second temperature signal input interface 41, second carbon potential signal input interface 42 and the second CO signals input interface 43, input parameter directly calculates carbon potential through the computation program of described second carbon potential calculation unit 4 inside establishment, and the voltage signal that described second carbon potential output interface 44 exports 1-5v exports as standard carbon potential signal.In like manner, if need more carbon potential to export, more carbon potential calculation unit also can be set.
When described first carbon potential calculation unit 3 and described second carbon potential calculate unit 4 all have carbon potential to export time, described carbon potential comparer 5 calculates the absolute value of the difference of two carbon potentials, if when this value exceedes a certain default warning value, the warning output interface 51 output bias guard signal of described carbon potential comparer 5.
In a preferred embodiment, described first carbon potential calculation unit also comprises the first ammonia signal input interface 35, described second carbon potential calculation unit also comprises the second ammonia signal input interface 45, and described first ammonia signal input interface 35 and described second ammonia signal input interface 45 are for inputting the content of the ammonia in described furnace atmosphere respectively.Increase this input parameter of ammonia level, the tolerance range of carbon potential calculation can be increased.
Above to invention has been the enough detailed description with certain singularity.Belonging to those of ordinary skill in field should be appreciated that, the description in embodiment is only exemplary, make under the prerequisite not departing from true spirit of the present invention and scope change and all should belong to protection scope of the present invention.The present invention's scope required for protection is undertaken limiting by described claims, instead of limited by the foregoing description in embodiment.

Claims (6)

1. a carbon potential exerciser, is characterized in that: it comprises principal controller and mode setting unit, and described principal controller adopts programmable logic controller, and described principal controller comprises the first carbon potential calculation unit and the second carbon potential calculation unit;
Described first carbon potential calculation unit comprises the first temperature signal input interface, the first carbon potential signal input interface, the first CO signals input interface and the first carbon potential output interface; Described first temperature signal input interface is for inputting the temperature value of furnace atmosphere, described first carbon potential signal input interface is for inputting the content of the first carbon potential gas in furnace atmosphere, described first CO signals input interface is for inputting the content of carbon monoxide in furnace atmosphere, and described first carbon potential output interface is for exporting described first carbon potential that calculates of carbon potential calculation unit;
Described second carbon potential calculation unit comprises the second temperature signal input interface, the second carbon potential signal input interface, the second CO signals input interface and the second carbon potential output interface, described second temperature signal input interface is for inputting the temperature value of furnace atmosphere, described second carbon potential signal input interface is for inputting the content of the second carbon potential gas in furnace atmosphere, and described second CO signals input interface is for inputting the content of carbon monoxide in furnace atmosphere; The carbon potential that described second carbon potential output interface calculates for exporting described second carbon potential calculation unit;
Described mode setting unit is connected with described first carbon potential signal input interface, the first CO signals input interface, the second carbon potential signal input interface and the second CO signals input interface respectively;
Described mode selecting unit is used for: the kind selecting described first carbon potential gas, and the kind of described first carbon potential gas comprises oxygen and carbonic acid gas; Select described first CO signals input interface to obtain the mode of the content of carbon monoxide in furnace atmosphere, the mode that described first CO signals input interface obtains the content of carbon monoxide in furnace atmosphere comprises fixed value input mode and dynamic value input mode; Select the kind of described second carbon potential gas, the kind of described second carbon potential gas comprises oxygen and carbonic acid gas; Select described second CO signals input interface to obtain the mode of the content of carbon monoxide in furnace atmosphere, the mode that described second CO signals input interface obtains the content of carbon monoxide in furnace atmosphere comprises fixed value input mode and dynamic value input mode.
2. carbon potential exerciser as claimed in claim 1, it is characterized in that: described principal controller also comprises carbon potential comparing unit, described carbon potential comparing unit calculates unit and the second carbon potential respectively and calculates unit and be connected with described first carbon potential, described carbon potential comparing unit calculates the absolute value of the difference between the carbon potential that unit calculates for the carbon potential that obtains described first carbon potential calculation unit and calculate and described second carbon potential.
3. carbon potential calculation unit as claimed in claim 2, it is characterized in that: described carbon potential comparing unit comprises deviation alarm output interface, when the absolute value of the difference between the described first carbon potential calculation carbon potential that calculates of unit and described second carbon potential calculate carbon potential that unit calculates exceedes default warning value, described deviation alarm output interface output bias guard signal.
4. the carbon potential exerciser as described in any one of claims 1 to 3, is characterized in that, described first carbon potential calculation unit also comprises the first ammonia signal input interface, and described first ammonia signal input interface is for inputting the content of ammonia in furnace atmosphere; Described second carbon potential calculation unit also comprises the second ammonia signal input interface, and described second ammonia signal input interface is for inputting the content of ammonia in furnace atmosphere.
5. the carbon potential exerciser as described in any one of claims 1 to 3, is characterized in that: described first carbon potential output interface and described second carbon potential output interface export the voltage signal of 1-5V.
6. the carbon potential exerciser as described in any one of claims 1 to 3, is characterized in that: described first carbon potential output interface and described second carbon potential output interface export the current signal of 4-20mA.
CN201510784703.2A 2015-11-16 2015-11-16 A kind of carbon potential exerciser Active CN105369188B (en)

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Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20080073002A1 (en) * 2001-06-05 2008-03-27 Dowa Thermotech Co., Ltd. Carburization treatment method and carburization treatment apparatus
CN202453755U (en) * 2011-12-31 2012-09-26 江苏丰东热技术股份有限公司 Heating furnace control system
CN202717834U (en) * 2012-08-16 2013-02-06 南京科达新控仪表有限公司 Carbon potential control system
CN205223332U (en) * 2015-11-16 2016-05-11 江苏丰东热技术股份有限公司 Carbon gesture exerciser

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20080073002A1 (en) * 2001-06-05 2008-03-27 Dowa Thermotech Co., Ltd. Carburization treatment method and carburization treatment apparatus
CN202453755U (en) * 2011-12-31 2012-09-26 江苏丰东热技术股份有限公司 Heating furnace control system
CN202717834U (en) * 2012-08-16 2013-02-06 南京科达新控仪表有限公司 Carbon potential control system
CN205223332U (en) * 2015-11-16 2016-05-11 江苏丰东热技术股份有限公司 Carbon gesture exerciser

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