CN105709655A - Atmosphere united gas distributing device for hot-dip plating experiment and method of atmosphere united gas distributing device - Google Patents
Atmosphere united gas distributing device for hot-dip plating experiment and method of atmosphere united gas distributing device Download PDFInfo
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- CN105709655A CN105709655A CN201610125157.6A CN201610125157A CN105709655A CN 105709655 A CN105709655 A CN 105709655A CN 201610125157 A CN201610125157 A CN 201610125157A CN 105709655 A CN105709655 A CN 105709655A
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01F—MIXING, e.g. DISSOLVING, EMULSIFYING OR DISPERSING
- B01F35/00—Accessories for mixers; Auxiliary operations or auxiliary devices; Parts or details of general application
- B01F35/80—Forming a predetermined ratio of the substances to be mixed
- B01F35/82—Forming a predetermined ratio of the substances to be mixed by adding a material to be mixed to a mixture in response to a detected feature, e.g. density, radioactivity, consumed power or colour
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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
- C23C2/00—Hot-dipping or immersion processes for applying the coating material in the molten state without affecting the shape; Apparatus therefor
- C23C2/003—Apparatus
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Abstract
The invention belongs to the technical field of hot-dip zinc and aluminum plating, and relates to an atmosphere united gas distributing device for a hot-dip plating experiment and a method of the atmosphere united gas distributing device. The device comprises a nitrogen main pipeline (a), a nitrogen branch pipeline (b), a nitrogen humidifying pipeline (c), a hydrogen pipeline (d), a mixed gas main pipeline (e), an unloading pipeline (f), a hydrogen distributing instrument pipeline (g), a dew-point instrument pipeline (h) and an automatic control system (20). The nitrogen main pipeline (a) is divided into the nitrogen branch pipeline (b) and the nitrogen humidifying pipeline (c), the outlet end of the nitrogen branch pipeline (b), the outlet end of the nitrogen humidifying pipeline (c) and the outlet end of the hydrogen pipeline (d) are combined into the mixed gas main pipeline (e), and a hydrogen distributing instrument (17), a dew-point instrument (18) and a flow meter (9) are installed on the mixed gas main pipeline (e). All the pipelines are provided with gas control valves controlled by the automatic control system (20). The atmosphere united gas distributing device is easy to operate and can prepare nitrogen and hydrogen mixed and humidified gas with a fixed dew point, the fixed hydrogen content and the fixed flow.
Description
Technical field
The invention belongs to galvanizing by dipping, technical field of aluminizing, be specifically related to a kind of atmosphere associating air distributing device and air distributing method thereof for hot-dip experiment.
Background technology
Hot-dip is called for short hot dip; it is will be used for the metal matrix material of immersion plating after by pretreatment stage; metal matrix material is immersed in the low-melting-point metal or alloy electroplating bath that have configured; thus a kind of process that surface has the metallic matrix of higher protectiveness coating must be arrived; wherein, reducing process continuously dip coat is the main production process that current steel band produces.
Along with the progressively intensification to hot-dip technical research, people also strengthen the optimization of or immersion and the development of novel coating.Owing to continuous hot-dipping apparatus for production line is complicated, steel belt operating speed is fast, can not carry out on actual production line when new technology and new-product development, therefore adopting the actual hot-dip production procedure of simulation of hot-dip experimental provision and technique is a kind of low cost, high efficiency research method.
Hot-dip experimental provision simulated annealing process carries out in restitutive protection's atmosphere, and the water vapour content of protective atmosphere, both the oxidation behavior of metallic matrix was affected notable by dew point value, common low carbon steel matrix requires that when hot-dip dew point value is more low more good, the dual phase steel advanced person's high-strength steel kind developed in recent years, such as Trip steel, IF steel etc., its matrix with the addition of the Si of high level, the alloying elements such as Mn, need to use pre-oxidation-reducing process during hot-dip annealing, namely process section is started in annealing, by improving steel plate dew point value (to 0～20 DEG C) in reducing atmosphere, make steel plate depth of internal oxidation bigger, reduce the alloying element formation at surface of steel plate oxide, phase process section after annealing, by reducing the dew point value (-30～-50 DEG C) of reducing atmosphere, the Reduction of Oxide promoting surface of steel plate becomes sponge iron, improve the wellability of steel plate and plating solution, form the coated article that surface quality is excellent.Therefore hot-dip experimental provision requires to need it is added wet process when proportioning restitutive protection's atmosphere, namely regulates the dew point value of protective atmosphere.
Hot-dip experimental provision belongs to laboratory installation, and the low humidity damping device therefore used falls within laboratory installation.The deficiency of existing low humidity damping device is in that flow too low (when proportioning dew point is the protective atmosphere of 0 DEG C, maximum flow can only achieve 3～4L/min); and need manual adjustment multichannel flow valve and switch valve simultaneously; adjustment process is slow; equipment requirements can not be met; limit the application of low humidity damping device, be unfavorable for the exploitation of hot-dip new technology and new product.
Summary of the invention
Present invention aim to address hot-dip unit protection atmosphere distribution problem, it is provided that a kind of atmosphere associating air distributing device for hot-dip experiment and air distributing method thereof, it is possible to proportioning is with determining dew point, determining hydrogen content and the nitrogen hydrogen of constant flow mixing humidification atmosphere.
For achieving the above object, technical scheme is as follows:
A kind of atmosphere associating air distributing device for hot-dip experiment, this device includes nitrogen header pipe road a, nitrogen tap line b, nitrogen humidification pipeline c, hydrogen pipeline d, mixing gas main pipe rail e, blowdown piping f, hydrogen divide instrument pipeline g, dew point hygrometer pipeline h, automation control system 20 and multiple gas control valve and filter；Wherein, the end that goes out of nitrogen header pipe road a is divided into nitrogen tap line b and nitrogen humidification pipeline c, the end that goes out of nitrogen tap line b, nitrogen humidification pipeline c and hydrogen pipeline d converges into mixing gas main pipe rail e, this mixing gas main pipe rail e divides instrument 17, dew point hygrometer 18 and effusion meter 9 equipped with hydrogen, form closed loop servo system, it is achieved accurately control hydrogen content, dew point and throughput；Each pipeline described is separately installed with each gas control valve controlled by automation control system 20.
Described nitrogen tap line b, described nitrogen humidification pipeline c and described hydrogen pipeline d is respectively mounted check valve and mass flow controller；Described mixing gas main pipe rail e installs effusion meter 9, and mixes gas main pipe rail e installation mixing gas main pipe rail electromagnetic valve 11 after the node of connection blowdown piping f；Described emptying pipeline f installs evacuated tube way solenoid valve 19；
Mixing gas main pipe rail e is communicated with hydrogen and divides instrument pipeline g, dew point hygrometer pipeline h and blowdown piping f, and hydrogen divides the end that of instrument pipeline g and dew point hygrometer pipeline h to connect with blowdown piping f.
Described automation control system 20 divides instrument 17, dew point hygrometer 18, effusion meter 9 and high humidity humidifier 16 to be connected with nitrogen header pipe way solenoid valve 2, mixing gas main pipe rail electromagnetic valve 11, evacuated tube way solenoid valve 19, nitrogen tap line mass flow controller 5, nitrogen humidification pipeline mass flow controller 6, hydrogen pipeline mass flow controller 15, hydrogen respectively.
Described nitrogen header pipe road a installs and is with manometric nitrogen header pipe road air relief valve 1 and nitrogen header pipe way solenoid valve 2.
Described nitrogen humidification pipeline c installs high humidity humidifier 16 further, is used for high dew point dampness；High humidity humidifier 16 is the high humidity humidifier of constant 50 DEG C of dew points, and the highest humidification capability is 20L/min.
Described hydrogen pipeline d also installs and is with manometric hydrogen pipeline air relief valve 12 and hydrogen pipeline electromagnetic valve 13.
Described emptying pipeline f also installs emptying line check valve 10；
Before described evacuated tube way solenoid valve 19 is positioned at the node that connection hydrogen divides instrument pipeline g and dew point hygrometer pipeline h.
Described hydrogen divides also to be installed hydrogen before hydrogen divides instrument 17 and divides instrument in-line filter 7 on instrument pipeline g；
Described dew point hygrometer pipeline h also installed dew point hygrometer in-line filter 8 before dew point hygrometer 18.
Described automation control system 20 includes PLC and HMI human-computer interaction interface；
Described automation control system 20 also electrically connects with nitrogen header pipe way solenoid valve 2, hydrogen pipeline electromagnetic valve 13 respectively.
The nitrogen hydrogen mixing humidification gas of proportioning, its hydrogen content is 0～50%, and dew point value is-50～20 DEG C, and throughput is 20～50L/min.
This device is applicable to the hot-dip experiment of galvanizing by dipping and zinc-containing alloy, hot-dip aluminizing and acieral.
A kind of air distributing method of the atmosphere associating air distributing device for hot-dip experiment, it is characterised in that:
Comprise the steps:
I) prepare before distribution: close nitrogen header pipe way solenoid valve 2 by automation control system 20, mixing gas main pipe rail electromagnetic valve 11, hydrogen pipeline electromagnetic valve 13, evacuated tube way solenoid valve 19, nitrogen tap line mass flow controller 5, nitrogen humidification pipeline mass flow controller 6, hydrogen pipeline mass flow controller 15, hydrogen divide instrument 17, dew point hygrometer 18 and effusion meter 9, open high humidity humidifier 16；
II) parameter is set: hydrogen content value, dew point value and mixed gas flow value are set by automation control system 20；
III) distribution: automatically controlled by automation control system 20, open nitrogen header pipe way solenoid valve 2, hydrogen pipeline electromagnetic valve 13 and evacuated tube way solenoid valve 19, and control nitrogen tap line mass flow controller 5, the aperture of nitrogen humidification pipeline mass flow controller 6 and hydrogen pipeline mass flow controller 15, open hydrogen and divide instrument 17, hydrogen content value actual in mixing gas main pipe rail e measured by dew point hygrometer 18 and effusion meter 9, dew point value and mixed gas flow value, form feedback signal, the further quality of regulation flow controller 5 of automation control system 20, the aperture of mass flow controller 6 and mass flow controller 15；
IV) distribution is complete: after hydrogen content value actual in mixing gas main pipe rail e, dew point value and mixed gas flow value reach setting value; electromagnetic valve 19 is closed by automation control system 20; opens solenoid valve 11, passes into protective gas in hot-dip experimental provision, and distribution is complete.
In step I, the pressure regulating nitrogen header pipe road a and hydrogen pipeline d is less than 0.4Mpa.
Also comprise the steps:
V) change parameter: in experimentation, when changing hydrogen content value, dew point value and mixed gas flow value, reenter step I-IV.
Adopting the nitrogen hydrogen mixing humidification gas of the air distributing method proportioning of the described atmosphere associating air distributing device for hot-dip experiment, its hydrogen content is 0～50%, and dew point value is-50～20 DEG C, and throughput is 20～50L/min.
The hot-dip experiment of galvanizing by dipping and zinc-containing alloy, hot-dip aluminizing and acieral it is applicable to for the air distributing method of the atmosphere associating air distributing device of hot-dip experiment.
The beneficial effects of the present invention is:
Atmosphere associating air distributing device for hot-dip experiment and the air distributing method thereof of the present invention are simple to operate, it is swift in response, distribution speed is fast, throughput is big, and automaticity is high, can proportioning determine dew point, determine hydrogen content, the nitrogen hydrogen of constant flow mixes and humidifies atmosphere, its hydrogen content scope is 0～50%, dew point is-50～20 DEG C, and throughput scope is 20～50L/min, and the hot-dip experimental facilities suitability is greatly improved.
The present invention is applicable to the hot-dip experiment of galvanizing by dipping and zinc-containing alloy, hot-dip aluminizing and acieral.
Accompanying drawing explanation
Fig. 1 is the schematic diagram of the atmosphere associating air distributing device for hot-dip experiment of the present invention.
Fig. 2 is the DP800 dual phase steel pre-oxidation reduced anneal process curve of the embodiment of the present invention 1.
Accompanying drawing labelling
A nitrogen header pipe road b nitrogen tap line
C nitrogen humidification pipeline d hydrogen pipeline
E gaseous mixture main pipe rail f blowdown piping
G hydrogen divides instrument pipeline h dew point hygrometer pipeline
1 nitrogen header pipe road air relief valve 2 nitrogen header pipe way solenoid valve
3 nitrogen are heated line check valve 4 nitrogen tap line check valve
5 nitrogen tap line mass flow controller 6 nitrogen are heated pipeline mass flow controller
7 hydrogen divide instrument in-line filter 8 dew point hygrometer in-line filter
9 effusion meter 10 blowdown piping check valves
11 mixing gas main pipe rail electromagnetic valve 12 hydrogen pipeline air relief valve
13 hydrogen pipeline electromagnetic valve 14 hydrogen pipeline check valves
15 hydrogen pipeline mass flow controller 16 high humidity humidifiers
17 hydrogen divide instrument 18 dew point hygrometer
19 blowdown piping electromagnetic valve 20 automation control systems
Detailed description of the invention
Below in conjunction with drawings and Examples, the specific embodiment of the present invention is described in further detail.
The three tunnel distribution servosystem that atmosphere associating air distributing device is Automated condtrol for hot-dip experiment of the present invention, proportioning can go out to determine dew point value, determine hydrogen content value and determine the nitrogen hydrogen mixing humidification gas of mixed gas flow value.
As shown in Figure 1, this device includes nitrogen header pipe road a, nitrogen tap line b, nitrogen humidification pipeline c, hydrogen pipeline d, mixing gas main pipe rail e, blowdown piping f, hydrogen divides instrument pipeline g, dew point hygrometer pipeline h and automation control system 20, wherein, the end of nitrogen header pipe road a is divided into nitrogen tap line b and nitrogen humidification pipeline c, nitrogen tap line b and nitrogen humidification pipeline c supplies by nitrogen header pipe road a, nitrogen tap line b, the end of nitrogen humidification pipeline c and hydrogen pipeline d converges into mixing gas main pipe rail e, mixing gas main pipe rail e is communicated with hydrogen and divides instrument pipeline g, dew point hygrometer pipeline h and blowdown piping f, and hydrogen divides the end of instrument pipeline g and dew point hygrometer pipeline h to connect with blowdown piping f.
Described nitrogen header pipe road a installs and is with manometric nitrogen header pipe road air relief valve 1 and nitrogen header pipe way solenoid valve 2.
Described nitrogen tap line b installs nitrogen tap line check valve 4 and nitrogen tap line mass flow controller 5.
Described nitrogen humidification pipeline c installs nitrogen humidification line check valve 3, nitrogen humidification pipeline mass flow controller 6 and high humidity humidifier 16, high humidity humidifier 16 is the high humidity humidifier of constant 50 DEG C of dew points, for there is high dew point dampness, the highest humidification capability is 20L/min, nitrogen exports the high humidity nitrogen that constant dew point is 50 DEG C after flowing through high humidity humidifier 16, and high humidity humidifier 16 is installed on nitrogen humidification pipeline c, a humidified nitrogen, it is possible to ensure the safety of device.
Described hydrogen pipeline d installs and is with manometric hydrogen pipeline air relief valve 12, hydrogen pipeline electromagnetic valve 13, hydrogen pipeline check valve 14 and hydrogen pipeline mass flow controller 15.
Described mixing gas main pipe rail e installs effusion meter 9, and mixes gas main pipe rail e installation mixing gas main pipe rail electromagnetic valve 11 after the node of connection blowdown piping f.
Described emptying pipeline f installs emptying line check valve 10 and evacuated tube way solenoid valve 19, before evacuated tube way solenoid valve 19 is positioned at the node that connection hydrogen divides instrument pipeline g and dew point hygrometer pipeline h, blowdown piping f divides the parameter (such as hydrogen content value, dew point value and mixed gas flow value) of instrument, dew point hygrometer and mixing gas to reach the exhaust emissions before setting value for hydrogen.
Described hydrogen divides to be installed hydrogen successively and divides instrument in-line filter 7 and hydrogen to divide instrument 17 on instrument pipeline g.
Described dew point hygrometer pipeline h installs dew point hygrometer in-line filter 8 and dew point hygrometer 18 successively.
Described automation control system 20 includes PLC and HMI human-computer interaction interface, wherein automation control system 20 respectively with nitrogen header pipe way solenoid valve 2, mix gas main pipe rail electromagnetic valve 11, hydrogen pipeline electromagnetic valve 13, evacuated tube way solenoid valve 19, nitrogen tap line mass flow controller 5, nitrogen humidification pipeline mass flow controller 6, hydrogen pipeline mass flow controller 15, hydrogen divide instrument 17, dew point hygrometer 18, effusion meter 9 and high humidity humidifier 16 to electrically connect, for controlling the switch of all parts.
The atmosphere for hot-dip experiment of the present invention combines the nitrogen used in air distributing device and hydrogen is the bottled nitrogen and bottled hydrogen that purity is be more than or equal to 99.999%, dew point is lower than-50 DEG C.
The air distributing method of a kind of atmosphere associating air distributing device for hot-dip experiment, comprises the steps:
I) prepare before distribution: close nitrogen header pipe way solenoid valve 2 by automation control system 20, mixing gas main pipe rail electromagnetic valve 11, hydrogen pipeline electromagnetic valve 13, evacuated tube way solenoid valve 19, nitrogen tap line mass flow controller 5, nitrogen humidification pipeline mass flow controller 6, hydrogen pipeline mass flow controller 15, hydrogen divide instrument 17, dew point hygrometer 18 and effusion meter 9, opening high humidity humidifier 16, the pressure regulating nitrogen header pipe road a and hydrogen pipeline d is less than 0.4Mpa.
II) parameter is set: hydrogen content value, dew point value and mixed gas flow value are set by automation control system 20.
III) distribution: distribution process is entirely through automation control system 20 and automatically controls, open nitrogen header pipe way solenoid valve 2, hydrogen pipeline electromagnetic valve 13 and evacuated tube way solenoid valve 19, and control nitrogen tap line mass flow controller 5, the aperture of nitrogen humidification pipeline mass flow controller 6 and hydrogen pipeline mass flow controller 15, open hydrogen and divide instrument 17, hydrogen content value actual in mixing gas main pipe rail e measured by dew point hygrometer 18 and effusion meter 9, dew point value and mixed gas flow value, form feedback signal, the further quality of regulation flow controller 5 of automation control system 20, the aperture of mass flow controller 6 and mass flow controller 15.
IV) distribution is complete: after hydrogen content value actual in mixing gas main pipe rail e, dew point value and mixed gas flow value reach setting value; electromagnetic valve 19 is closed by automation control system 20; opens solenoid valve 11, passes into protective gas in hot-dip experimental provision, and distribution is complete.
V) change parameter: in experimentation, when changing hydrogen content value, dew point value and mixed gas flow value, reenter step I-IV.
The atmosphere associating air distribution system for hot-dip experiment of the present invention and method are applicable to the hot-dip experiment of galvanizing by dipping and zinc-containing alloy, hot-dip aluminizing and acieral, adopt the nitrogen hydrogen mixing humidification gas of this device and method proportioning, its hydrogen content is 0～50%, dew point value is-50～20 DEG C, and throughput is 20～50L/min.
Embodiment 1
Embodiment 1 adopts DP800 dual phase steel to carry out pre-oxidation reduced anneal technological experiment, and DP800 dual phase steel pre-oxidation reduced anneal process curve, as in figure 2 it is shown, be used for the concrete air distributing method of this technological experiment, comprises the steps:
Before distribution, closedown nitrogen header pipe way solenoid valve 2, mixing gas main pipe rail electromagnetic valve 11, hydrogen pipeline electromagnetic valve 13, evacuated tube way solenoid valve 19, nitrogen tap line mass flow controller 5, nitrogen humidification pipeline mass flow controller 6, hydrogen pipeline mass flow controller 15, hydrogen divide instrument 17, dew point hygrometer 18 and effusion meter 9, open constant 50 DEG C of dew point high humidity humidifiers 16, regulate the pressure respectively 0.2Mpa of nitrogen header pipe road a and hydrogen pipeline d.
By automation control system 20 arrange hydrogen content value be 5%, dew point value be 30L/min for-10～20 DEG C and mixed gas flow value.
Open nitrogen header pipe way solenoid valve 2, hydrogen pipeline electromagnetic valve 13 and evacuated tube way solenoid valve 19, control nitrogen tap line mass flow controller 5, the aperture of nitrogen humidification pipeline mass flow controller 6 and hydrogen pipeline mass flow controller 15, open hydrogen and divide instrument 17, hydrogen content value actual in mixing gas main pipe rail e measured by dew point hygrometer 18 and effusion meter 9, dew point value and mixed gas flow value, when detecting that hydrogen content is 5%, when dew point reaches 30L/min setting value for-10～20 DEG C and mixed gas flow value, close evacuated tube way solenoid valve 19, open mixing gas main pipe rail electromagnetic valve 11 in hot-dip experimental provision, pass into nitrogen hydrogen mixing humidification gas, begin to warm up sample, combine air distributing device Continuous aeration during heating and reach dynamic equilibrium.
When sample heating is to 720 DEG C, hot-dip experimental provision reduces firing rate, waits protective gas to be protected to switch.
Resetting hydrogen content value is 10%, dew point value is 35L/min for-50～-40 DEG C and mixed gas flow value, close mixing gas main pipe rail electromagnetic valve 11, open evacuated tube way solenoid valve 19, control nitrogen tap line mass flow controller 5, the aperture of nitrogen humidification pipeline mass flow controller 6 and hydrogen pipeline mass flow controller 15, monitoring hydrogen content value, dew point value and mixed gas flow value, again distribution, when detecting that hydrogen content value is 10%, when dew point value reaches 35L/min setting value for-50～-40 DEG C and mixed gas flow value, close evacuated tube way solenoid valve 19, open mixing gas main's electromagnetic valve 11 to continue in hot-dip experimental provision, pass into nitrogen hydrogen mixing humidification gas, hot-dip experimental provision continues heating sample and is incubated 45s to 820 DEG C, then it is cooled to hot-dip temperature with 30 DEG C/s, distribution terminates.Associating air distributing device Continuous aeration reaches dynamic equilibrium during this period.
Claims (16)
1. the atmosphere associating air distributing device for hot-dip experiment, it is characterised in that:
This device includes nitrogen header pipe road (a), nitrogen tap line (b), nitrogen humidification pipeline (c), hydrogen pipeline (d), mixing gas main pipe rail (e), blowdown piping (f), hydrogen divide instrument pipeline (g), dew point hygrometer pipeline (h), automation control system (20) and multiple gas control valve and filter；Wherein, the end that goes out of nitrogen header pipe road (a) is divided into nitrogen tap line (b) and nitrogen humidification pipeline (c), the end that goes out of nitrogen tap line (b), nitrogen humidification pipeline (c) and hydrogen pipeline (d) converges into mixing gas main pipe rail (e), this mixing gas main pipe rail (e) divides instrument (17), dew point hygrometer (18) and effusion meter (9) equipped with hydrogen, form closed loop servo system, it is achieved accurately control hydrogen content, dew point and throughput；Each pipeline described is separately installed with each gas control valve controlled by automation control system (20).
2. the associating air distributing device testing atmosphere for hot-dip according to claim 1, it is characterised in that:
Described nitrogen tap line (b), described nitrogen humidification pipeline (c) and described hydrogen pipeline (d) are respectively mounted check valve and mass flow controller；Described mixing gas main pipe rail (e) is installed effusion meter (9), and mixes gas main pipe rail (e) installation mixing gas main pipe rail electromagnetic valve (11) after the node of connection blowdown piping (f)；Described emptying pipeline (f) is upper installs evacuated tube way solenoid valve (19)；
Mixing gas main pipe rail (e) is communicated with hydrogen and divides instrument pipeline (g), dew point hygrometer pipeline (h) and blowdown piping (f), and hydrogen divides instrument pipeline (g) to connect with blowdown piping (f) with the end that goes out of dew point hygrometer pipeline (h).
3. the atmosphere associating air distributing device for hot-dip experiment according to claim 1, it is characterised in that:
Described automation control system (20) divides instrument (17), dew point hygrometer (18), effusion meter (9) and high humidity humidifier (16) to be connected with nitrogen header pipe way solenoid valve (2), mixing gas main pipe rail electromagnetic valve (11), evacuated tube way solenoid valve (19), nitrogen tap line mass flow controller (5), nitrogen humidification pipeline mass flow controller (6), hydrogen pipeline mass flow controller (15), hydrogen respectively.
4. the atmosphere associating air distributing device for hot-dip experiment according to claim 1, it is characterised in that:
The upper installation of described nitrogen header pipe road (a) is with manometric nitrogen header pipe road air relief valve (1) and nitrogen header pipe way solenoid valve (2).
5. the atmosphere associating air distributing device for hot-dip experiment according to claim 1, it is characterised in that:
Described nitrogen humidification pipeline (c) is upper installs high humidity humidifier (16) further, is used for high dew point dampness；High humidity humidifier (16) is the high humidity humidifier of constant 50 DEG C of dew points, and the highest humidification capability is 20L/min.
6. the atmosphere associating air distributing device for hot-dip experiment according to claim 1, it is characterised in that:
Described hydrogen pipeline (d) is also installed and is with manometric hydrogen pipeline air relief valve (12) and hydrogen pipeline electromagnetic valve (13).
7. the atmosphere associating air distributing device for hot-dip experiment according to claim 1, it is characterised in that:
Described emptying pipeline (f) is also installed emptying line check valve (10)；
Before described evacuated tube way solenoid valve (19) is positioned at the node that connection hydrogen divides instrument pipeline (g) and dew point hygrometer pipeline (h).
8. the atmosphere associating air distributing device for hot-dip experiment according to claim 1, it is characterised in that:
Described hydrogen divides to divide at hydrogen on instrument pipeline (g) also to be installed hydrogen before instrument (17) and divides instrument in-line filter (7)；
Described dew point hygrometer pipeline (h) was also installed dew point hygrometer in-line filter (8) before dew point hygrometer (18).
9. the atmosphere associating air distributing device for hot-dip experiment according to claim 1, it is characterised in that:
Described automation control system (20) includes PLC and HMI human-computer interaction interface；
Described automation control system (20) also electrically connects with nitrogen header pipe way solenoid valve (2), hydrogen pipeline electromagnetic valve (13) respectively.
10. adopt the atmosphere associating air distributing device for hot-dip experiment according to claim 1, it is characterised in that:
The nitrogen hydrogen mixing humidification gas of proportioning, its hydrogen content is 0～50%, and dew point value is-50～20 DEG C, and throughput is 20～50L/min.
11. the atmosphere associating air distributing device for hot-dip experiment according to claim 1, it is characterised in that:
This device is applicable to the hot-dip experiment of galvanizing by dipping and zinc-containing alloy, hot-dip aluminizing and acieral.
12. the air distributing method of the atmosphere associating air distributing device for hot-dip experiment as described in claim 1-11, it is characterised in that:
Comprise the steps:
I) prepare before distribution: divide instrument (17), dew point hygrometer (18) and effusion meter (9) by automation control system (20) closedown nitrogen header pipe way solenoid valve (2), mixing gas main pipe rail electromagnetic valve (11), hydrogen pipeline electromagnetic valve (13), evacuated tube way solenoid valve (19), nitrogen tap line mass flow controller (5), nitrogen humidification pipeline mass flow controller (6), hydrogen pipeline mass flow controller (15), hydrogen, open high humidity humidifier (16)；
II) parameter is set: hydrogen content value, dew point value and mixed gas flow value are set by automation control system (20)；
III) distribution: automatically controlled by automation control system (20), open nitrogen header pipe way solenoid valve (2), hydrogen pipeline electromagnetic valve (13) and evacuated tube way solenoid valve (19), and control nitrogen tap line mass flow controller (5), the aperture of nitrogen humidification pipeline mass flow controller (6) and hydrogen pipeline mass flow controller (15), open hydrogen and divide instrument (17), hydrogen content value actual in mixing gas main pipe rail (e) measured by dew point hygrometer (18) and effusion meter (9), dew point value and mixed gas flow value, form feedback signal, automation control system (20) is quality of regulation flow controller (5) further, the aperture of mass flow controller (6) and mass flow controller (15)；
IV) distribution is complete: after hydrogen content value actual in mixing gas main pipe rail (e), dew point value and mixed gas flow value reach setting value; electromagnetic valve (19) is closed by automation control system (20); opens solenoid valve (11); passing into protective gas in hot-dip experimental provision, distribution is complete.
13. the air distributing method of the atmosphere associating air distributing device for hot-dip experiment according to claim 12, it is characterised in that:
In step I, the pressure regulating nitrogen header pipe road (a) and hydrogen pipeline (d) is less than 0.4Mpa.
14. the air distributing method of the atmosphere associating air distributing device for hot-dip experiment according to claim 12, it is characterised in that:
Also comprise the steps:
V) change parameter: in experimentation, when changing hydrogen content value, dew point value and mixed gas flow value, reenter step I-IV.
15. adopt the nitrogen hydrogen mixing humidification gas of the air distributing method proportioning of the atmosphere associating air distributing device for hot-dip experiment according to claim 12, its hydrogen content is 0～50%, and dew point value is-50～20 DEG C, and throughput is 20～50L/min.
16. the air distributing method for the atmosphere associating air distributing device of hot-dip experiment according to claim 12 is applicable to the hot-dip experiment of galvanizing by dipping and zinc-containing alloy, hot-dip aluminizing and acieral.
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108802101A (en) * | 2018-06-15 | 2018-11-13 | 贵州振华群英电器有限公司（国营第八九厂） | A method of control interiors of products filling gas moisture content |
| CN109656291A (en) * | 2019-02-01 | 2019-04-19 | 中国工程物理研究院核物理与化学研究所 | A kind of irradiation checking device controlling humidity and atmosphere |
| CN109722616A (en) * | 2017-10-31 | 2019-05-07 | 上海东新冶金技术工程有限公司 | Hot galvanizing air knife nitrogen feeder and its application method |
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| CN108802101A (en) * | 2018-06-15 | 2018-11-13 | 贵州振华群英电器有限公司（国营第八九厂） | A method of control interiors of products filling gas moisture content |
| CN109656291A (en) * | 2019-02-01 | 2019-04-19 | 中国工程物理研究院核物理与化学研究所 | A kind of irradiation checking device controlling humidity and atmosphere |
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|---|---|
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