CN205774651U - RH lift gas valve station - Google Patents
RH lift gas valve station Download PDFInfo
- Publication number
- CN205774651U CN205774651U CN201620491985.7U CN201620491985U CN205774651U CN 205774651 U CN205774651 U CN 205774651U CN 201620491985 U CN201620491985 U CN 201620491985U CN 205774651 U CN205774651 U CN 205774651U
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- control unit
- flow control
- lift gas
- supervisor
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Abstract
This utility model provides a kind of RH lift gas valve station, including an argon supply supervisor, described argon supply supervisor has an argon stop valve；At least one flow control unit, each described flow control unit has an inlet end and an outlet side, and described inlet end is connected with described argon supply supervisor, and each described flow control unit includes at least two-stage pipeline, and every grade of pipeline has an electromagnetic valve and a restriction orifice；One vacuum chamber inserts pipe, is connected with described outlet side.This utility model uses the flow control unit with restriction orifice as core parts to carry out classification regulation and control lift gas flow, substitute the flow control unit of the stepless regulated lift gas flow with integral type flow controller as core parts involved great expense, it is achieved very low cost, high-precision lift gas flow-control.
Description
Technical field
This utility model relates to metallurgy industry steel-making vacuum refining field, particularly relates to a kind of novel RH lift gas valve station.
Background technology
RH promotes the important component part that air valve station is RH equipment for vacuum refining, is to realize molten steel to set up the power resources of circulation in vacuum chamber and ladle, and lift gas uses argon.Vacuum chamber inserts the quantity of lifting gas blowout nozzle in pipe and, according to the difference of insertion bore, is typically provided 12 ~ 20, and corresponding outside lifting is provided with 4 ~ 10 control loops in air valve station, the most also have and only set 2 control loops.Each control loop the most typically uses integral type flow controller, or uses split type effusion meter and flow control valve, it is achieved on a large scale, flow-control accurately, generally uses import instrumentation, and when controlling loop and being more, whole cost is high.
Utility model content
The purpose of this utility model is to provide a kind of low cost, high-precision RH lift gas valve station.
This utility model is achieved in that
This utility model provides a kind of RH lift gas valve station, it is characterised in that including: an argon supply supervisor, and described argon supply supervisor has an argon stop valve；At least one flow control unit, each described flow control unit has an inlet end and an outlet side, and described inlet end is connected with described argon supply supervisor, and each described flow control unit includes at least two-stage pipeline, and every grade of pipeline has an electromagnetic valve and a restriction orifice；One vacuum chamber inserts pipe, is connected with described outlet side.
Further, including a nitrogen supply (NS) supervisor, described nitrogen supply (NS) supervisor having a nitrogen stop valve, described nitrogen supply (NS) supervisor be connected with described inlet end.
Further, described argon supply supervisor converges to a gas supply main with described nitrogen supply (NS) supervisor, and described gas supply main is connected with described inlet end.
Further, when described flow control unit is multiple, described gas supply main be divided into multiple branched structure and respectively inlet end with multiple described flow control unit be connected.
Further, when described flow control unit is multiple, multiple described flow control unit are identical.
Further, the gas flow that the restriction orifice on every grade of pipeline of same flow control unit limits is different.
This utility model has the advantages that
This utility model RH lift gas valve station uses the flow control unit with restriction orifice as core parts to carry out classification regulation and control lift gas flow, substitute the flow control unit of the stepless regulated lift gas flow with integral type flow controller as core parts involved great expense, it is achieved very low cost, high-precision lift gas flow-control.
Accompanying drawing explanation
The schematic diagram at the RH lift gas valve station that Fig. 1 provides for this utility model embodiment；
The enlarged drawing of the flow control unit at the RH lift gas valve station that Fig. 2 provides for this utility model embodiment.
Description of reference numerals: 1-argon supply supervisor, 11-argon stop valve, 2, nitrogen supply (NS) supervisor, 21-nitrogen stop valve, 10-gas supply main, 3a-the first flow control unit, 3b-the second flow control unit, 3c-the 3rd flow control unit, 3d-the 4th flow control unit, I grade of electromagnetic valve of 31-, II grade of electromagnetic valve of 32-, III grade of electromagnetic valve of 33-, I grade of restriction orifice of 34-, II grade of restriction orifice of 35-, III grade of restriction orifice of 36-, 4-vacuum chamber insert pipe.
Detailed description of the invention
Below in conjunction with the accompanying drawing in this utility model embodiment, the technical scheme in this utility model embodiment is clearly and completely described, it is clear that described embodiment is only a part of embodiment of this utility model rather than whole embodiments.Based on the embodiment in this utility model, all other embodiments that those of ordinary skill in the art are obtained under not making creative work premise, broadly fall into the scope of this utility model protection.
As it is shown in figure 1, this utility model embodiment provides a kind of RH lift gas valve station, insert pipe 4 including argon supply supervisor 1, nitrogen supply (NS) 2, four flow controls unit 3a, 3b, 3c, 3d of supervisor and a vacuum chamber.
As shown in Figure 1, described argon supply supervisor 1 inserts the lift gas of pipe 4 for providing argon as vacuum chamber, there is on it argon stop valve 11, described nitrogen supply (NS) supervisor 2 inserts the blockage resisting gas of pipe 4 for providing nitrogen as vacuum chamber, having a nitrogen stop valve 21 on it, described argon supply supervisor 1 converges to a gas supply main 10 with described nitrogen supply (NS) supervisor 2 and is connected with four described flow control unit 3a, 3b, 3c, 3d.Described nitrogen supply (NS) supervisor 2 can not also be set in other embodiments, correspondingly also without setting described gas supply main 10.
As depicted in figs. 1 and 2, four described flow control unit 3a, 3b, 3c, 3d are identical, it includes the first flow control unit 3a, the second flow control unit 3b, the 3rd flow control unit 3c, the 4th flow control unit 3d, each described flow control unit 3a, 3b, 3c, 3d have an inlet end and an outlet side, described gas supply main 10 is divided into four branched structures and is connected with the first flow control unit 3a, the second flow control unit 3b, the 3rd flow control unit 3c, the inlet end of the 4th flow control unit 3d respectively, and four described outlet sides are all inserted pipe 4 with shown vacuum chamber and are connected.Each described flow control unit 3a, 3b, 3c, 3d include parallel arrangement of triode road, it is respectively I grade of pipeline, II grade of pipeline, III grade of pipeline, there is on every grade of pipeline an electromagnetic valve and a restriction orifice, particularly as follows: have 31,1 grades of restriction orifices 34 of one I grades of electromagnetic valves on described I grade of pipeline, there are on described II grade of pipeline 32,1 grades of restriction orifices 35 of one II grades of electromagnetic valves, described III grade of pipeline has 33,1 grades of restriction orifices 36 of one III grades of electromagnetic valves.By using the restriction orifice of different size to limit the gas flow of every grade of pipeline, and controlled the opening and closing of respective line by electromagnetic valve.The present embodiment sets I grade of pipeline gas flow as
Q1, II grade of pipeline gas flow is Q2, and III grade of pipeline gas flow is Q3, and Q1 < Q2 < Q3.
The using method at the RH lift gas valve station of this utility model embodiment is as follows: vacuum chamber inserts under pipe duty, when argon is as lift gas, argon stop valve 11 is opened, nitrogen stop valve 12 cuts out, molten steel processes the initial stage, prevent molten steel splash serious, lift gas flow is 4 × Q1, now the first flow control unit 3a, the second flow control unit 3b, the 3rd flow control unit 3c, the 4th flow control unit 3d all open I grade of pipeline, it is specially I grade of electromagnetic valve 31 to open, II grade of electromagnetic valve 32 cuts out, and III grade of electromagnetic valve 33 cuts out；Gas flows through I grade of restriction orifice 34.Molten steel processes mid-term, for improving circulation efficiency, lift gas flow is 4 × Q2, now the first flow control unit 3a, the second flow control unit 3b, the 3rd flow control unit 3c, the 4th flow control unit 3d all open II grade of pipeline, and specially I grade electromagnetic valve 31 cut out, II grade of electromagnetic valve 32 is opened, III grade of electromagnetic valve 33 cuts out；Gas flows through II grade of restriction orifice 35.Molten steel processes the later stage, for adjusting the alloy uniformity in steel, lift gas flow is 4 × Q3, now the first flow control unit 3a, the second flow control unit 3b, the 3rd flow control unit 3c, the 4th flow control unit 3d all open III grade of pipeline, it is specially I grade of electromagnetic valve 31 to close, II grade of electromagnetic valve 32 cuts out, and III grade of electromagnetic valve 33 is opened；Gas flows through III grade of restriction orifice 36.
Vacuum chamber inserts under pipe off working state, when nitrogen inserts pipe blockage resisting gas as vacuum chamber, argon stop valve 11 cuts out, nitrogen stop valve 12 is opened, blockage resisting gas flow is 4 × Q1, and now the first flow control unit 3a, the second flow control unit 3b, the 3rd flow control unit 3c, the 4th flow control unit 3d all open I grade of pipeline, and specially I grade electromagnetic valve 31 is opened, II grade of electromagnetic valve 32 cuts out, and III grade of electromagnetic valve 33 cuts out；Gas flows through I grade of restriction orifice 34.
In the present embodiment, the quantity of flow control unit and the pipeline quantity of each flow control unit are all exemplary, in actual applications, needs insert the required lift gas flow of pipe according to vacuum chamber and determine the quantity of flow control unit, and are determined the pipeline quantity of each flow control unit by the gas blow pipe quantity on the vacuum chamber insertion pipe controlled needed for each flow control unit.
The foregoing is only preferred embodiment of the present utility model; not in order to limit this utility model; all within spirit of the present utility model and principle, any modification, equivalent substitution and improvement etc. made, within should be included in protection domain of the present utility model.
Claims (6)
1. a RH lift gas valve station, it is characterised in that including:
One argon supply supervisor, described argon supply supervisor has an argon stop valve；
At least one flow control unit, each described flow control unit has an inlet end and an outlet side, and described inlet end is connected with described argon supply supervisor, and each described flow control unit includes at least two-stage pipeline, and every grade of pipeline has an electromagnetic valve and a restriction orifice；
One vacuum chamber inserts pipe, is connected with described outlet side.
2. RH lift gas valve station as claimed in claim 1, it is characterised in that: farther including a nitrogen supply (NS) supervisor, described nitrogen supply (NS) supervisor has a nitrogen stop valve, described nitrogen supply (NS) supervisor be connected with described inlet end.
3. RH lift gas valve station as claimed in claim 2, it is characterised in that: described argon supply supervisor converges to a gas supply main with described nitrogen supply (NS) supervisor, and described gas supply main is connected with described inlet end.
4. RH lift gas valve station as claimed in claim 3, it is characterised in that: when described flow control unit is multiple, described gas supply main be divided into multiple branched structure and respectively inlet end with multiple described flow control unit be connected.
5. RH lift gas valve station as claimed in claim 1, it is characterised in that: when described flow control unit is multiple, multiple described flow control unit are identical.
6. RH lift gas valve station as claimed in claim 1, it is characterised in that: the gas flow that the restriction orifice on every grade of pipeline of same flow control unit limits is different.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620491985.7U CN205774651U (en) | 2016-05-26 | 2016-05-26 | RH lift gas valve station |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620491985.7U CN205774651U (en) | 2016-05-26 | 2016-05-26 | RH lift gas valve station |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN205774651U true CN205774651U (en) | 2016-12-07 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201620491985.7U Active CN205774651U (en) | 2016-05-26 | 2016-05-26 | RH lift gas valve station |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN205774651U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111094598A (en) * | 2017-09-18 | 2020-05-01 | 株式会社Posco | Vacuum degassing apparatus and refining method |
-
2016
- 2016-05-26 CN CN201620491985.7U patent/CN205774651U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111094598A (en) * | 2017-09-18 | 2020-05-01 | 株式会社Posco | Vacuum degassing apparatus and refining method |
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| GR01 | Patent grant |