CN202438259U - Gas purification device for titanium and zirconium vacuum heat treatment and melting - Google Patents
Gas purification device for titanium and zirconium vacuum heat treatment and melting Download PDFInfo
- Publication number
- CN202438259U CN202438259U CN2012200661763U CN201220066176U CN202438259U CN 202438259 U CN202438259 U CN 202438259U CN 2012200661763 U CN2012200661763 U CN 2012200661763U CN 201220066176 U CN201220066176 U CN 201220066176U CN 202438259 U CN202438259 U CN 202438259U
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- melting
- flange
- vacuum heat
- shell
- zirconium
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Abstract
The utility model discloses a gas purification device for titanium and zirconium vacuum heat treatment and melting. The gas purification device comprises a case and a plurality of pipelines, wherein the pipelines are arranged inside the case and are used for containing gas purifying agents, a plurality of through holes are arranged on the pipelines, one end of the case is provided with a first flange, the other end of the case is provided with a casing end cover provided with vent holes in the middle, and a second flange is arranged on the outer surface of the casing end cover. The gas purification device has the advantages that the structure is simple, the design is reasonable, the use and the operation are convenient, corrosive gas generated in the vacuum heat treatment and melting processes can be effectively neutralized, dried and purified, and the corrosion on a rotary blade pump is greatly reduced.
Description
Technical field
The utility model relates to a kind of gas cleaning plant, especially relates to a kind of titanium, zirconium vacuum heat and melting and uses gas cleaning plant.
Background technology
Therefore titanium, zirconium and alloy thereof are widely used in each departments such as oil, chemical industry, Aeronautics and Astronautics owing to have excellent corrosion resistance.But because the chemism of titanium, zirconium material is very high, when causing it under atmosphere, to heat-treat, oxidation is more serious.So; The heat treatment of titanium, zirconium material and melting are generally all carried out under vacuum condition; The pumped vacuum systems of vacuum heat and melting generally all is by diffusion pump (not drawing among the figure), lobe pump 9 and sliding vane rotary pump 8 be connected in sequence (as shown in Figure 2); Wherein the vacuum of diffusion pump is the highest, and lobe pump takes second place, and sliding vane rotary pump is minimum.Gas is compression step by step under the effect of these three kinds of pumps, is discharged by sliding vane rotary pump at last.
Titanium, zirconium carry out vacuum heat will carry out pickling earlier as last, and the main component of Acidwash solution is HF and HNO
3, purpose is that the material water washes, the vacuum drying oven heat treatment of packing into then with thoroughly removals such as the greasy dirts of material surface.But in process of production; The acid pickling of material surface can not be fallen by cleaning down; This just causes when carrying out vacuum heat, and the acid that material surface is remaining can be evaporated, and gets into final sliding vane rotary pump through pumped vacuum systems; Its concentration can be increasing along with carrying out of producing, and is more and more serious to the corrosion meeting of sliding vane rotary pump.
The melting raw material of titanium, zirconium generally is titanium sponge or sponge zirconium.Because residual in titanium sponge or the sponge zirconium have a MgCl
2, MgCl when melting
2Can decompose and produce and have corrosive chlorine (Cl
2), same principle, Cl
2Can get into final sliding vane rotary pump through pumped vacuum systems, its concentration can be increasing along with carrying out of producing, also can be more and more serious to the corrosion of sliding vane rotary pump.
The utility model content
The purpose of the utility model is to overcome above-mentioned deficiency of the prior art; Provide a kind of titanium, zirconium vacuum heat and melting to use gas cleaning plant; It is simple in structure, reasonable in design and use easy to operate; Can be effectively with corrosive gas neutralized, dry decontamination having of producing in vacuum heat and the fusion process, reduced corrosion greatly to sliding vane rotary pump.
For realizing above-mentioned purpose; The technical scheme that the utility model adopts is: gas cleaning plant is used in a kind of titanium, zirconium vacuum heat and melting; It is characterized in that: comprise shell and be arranged on enclosure and be used for many pipelines of splendid attire gas purifying agent that have a plurality of through holes on the said pipeline, an end of said shell is equipped with first flange; The other end of said shell is equipped with the housing end plug that air-vent is offered at the middle part, and second flange is installed on the outer surface of said housing end plug.
Gas cleaning plant is used in above-mentioned a kind of titanium, zirconium vacuum heat and melting; It is characterized in that: said pipeline is installed on the deflection plate that is positioned at enclosure; Said number of baffles is a polylith, and the said deflection plate of polylith is provided with at interval, and the said deflection plate of polylith is fixed together through screw rod; The left end of said screw rod passes housing end plug and is fixed on the housing end plug through nut.
Gas cleaning plant is used in above-mentioned a kind of titanium, zirconium vacuum heat and melting, it is characterized in that: the shape of cross section of said shell is for circular.
Gas cleaning plant is used in above-mentioned a kind of titanium, zirconium vacuum heat and melting, it is characterized in that: said deflection plate be shaped as semicircle, the external diameter of said deflection plate is than the little 0.5mm～1.0mm of internal diameter of shell.
Gas cleaning plant is used in above-mentioned a kind of titanium, zirconium vacuum heat and melting; It is characterized in that: the flange of the lobe pump on an end of said first flange and the pumped vacuum systems is connected, and the flange of the sliding vane rotary pump on an end of said second flange and the pumped vacuum systems is connected.
Gas cleaning plant is used in above-mentioned a kind of titanium, zirconium vacuum heat and melting, it is characterized in that: a plurality of said through holes evenly are provided with.
Gas cleaning plant is used in above-mentioned a kind of titanium, zirconium vacuum heat and melting, it is characterized in that: said pipeline is the titanium pipe.
Gas cleaning plant is used in above-mentioned a kind of titanium, zirconium vacuum heat and melting; It is characterized in that: the other end of said first flange is welded on an end of shell; Said housing end plug is welded on the other end of shell, and the other end of said second flange is welded on the outer surface of housing end plug.
The utility model compared with prior art has the following advantages:
1, simple in structure, reasonable in design and use easy to operate.
2, can be effectively with corrosive gas neutralized, dry decontamination having of producing in vacuum heat and the fusion process, reduced corrosion greatly to sliding vane rotary pump.
3, the utility model adopts NaOH and gas to carry out chemical reaction, with HF, the HNO of pumped vacuum systems
3And Cl
2All remove; Utilize NaOH to be easy to the characteristics of moisture absorption simultaneously, to the steam (H in the system
2O) also remove simultaneously.
4, the utility model adopts the structure of polylith deflection plate, and the speed of passing through of having slowed down waste gas has prolonged reaction time of waste gas and NaOH; Densely covered through hole is arranged on the pipeline, can fully react with discarded.
5, the utility model is simple, and cost is lower, and efficient is higher, and it is comparatively convenient to change, to operating personnel require low.
Through accompanying drawing and embodiment, the utility model is done further detailed description below.
Description of drawings
Fig. 1 is the overall structure sketch map of the utility model.
Fig. 2 is installed in the structural representation on the pumped vacuum systems for the utility model.
Description of reference numerals:
1-second flange; The 2-housing end plug; The 2-1-nut;
The 3-deflection plate; The 4-pipeline; The 4-1-through hole;
The 5-screw rod; The 6-shell; 7-first flange;
The 8-sliding vane rotary pump; The 9-lobe pump.
The specific embodiment
As depicted in figs. 1 and 2; The utility model comprises shell 6 and to be arranged on shell 6 inner and be used for the many pipelines 4 of splendid attire gas purifying agent (like NaOH); Have a plurality of through hole 4-1 on the said pipeline 4; One end of said shell 6 is equipped with first flange 7, and the other end of said shell 6 is equipped with the housing end plug 2 that air-vent is offered at the middle part, and second flange 1 is installed on the outer surface of said housing end plug 2.
As depicted in figs. 1 and 2, in the present embodiment, said pipeline 4 is installed on the deflection plate 3 that is positioned at shell 6 inside, and the quantity of said deflection plate 3 is polylith, and the said deflection plate 3 of polylith is provided with at interval, and the said deflection plate 3 of polylith is fixed together through screw rod 5; The left end of said screw rod 5 passes housing end plug 2 and is fixed on the housing end plug 2 through nut 2-1.
In the present embodiment, the shape of cross section of said shell 6 is circular.
In the present embodiment, said deflection plate 3 be shaped as semicircle, the external diameter of said deflection plate 3 is than the little 0.5mm～1.0mm of internal diameter of shell 6.
As shown in Figure 2, in the present embodiment, the flange of the lobe pump 9 on an end of said first flange 7 and the pumped vacuum systems is connected, and the flange of the sliding vane rotary pump 8 on an end of said second flange 1 and the pumped vacuum systems is connected.
As depicted in figs. 1 and 2, in the present embodiment, a plurality of said through hole 4-1 evenly are provided with.
In the present embodiment, said pipeline 4 is the titanium pipe.
In the present embodiment, the other end of said first flange 7 is welded on an end of shell 6, and said housing end plug 2 is welded on the other end of shell 6, and the other end of said second flange 1 is welded on the outer surface of housing end plug 2.
The course of work of the utility model is: NaOH is packed in the pipeline 4; The deflection plate 3 that will be fixed together through screw rod 5 is then packed into pipeline 4 in the shell 6; First flange 7 is connected with the flange of lobe pump 9, and second flange 1 is connected with the flange of sliding vane rotary pump 8; Start pumped vacuum systems; Then sour gas in the furnace chamber and steam can pass through diffusion pump, lobe pump 9 and compresses step by step; Then get in the utility model gas cleaning plant; Waste gas can complications advance under the effect of deflection plate 3, and meanwhile, the NaOH in the titanium pipe 4 can following reaction: NaOH+HF=NaF+H take place with waste gas
2O, NaOH+HNO
3=NaNO
3+ H
2O, 2NaOH+Cl
2=NaClO+NaCl+H
2O.Simultaneously because NaOH is prone to the characteristic of moisture absorption, the H in the waste gas
2O also is absorbed.After equipment operation a period of time (can decide the length of time) according to concrete operating mode; Open first flange 7 and second flange 1; Deflection plate 3 is taken out with pipeline 4; Reacted gas purifying agent NaOH is removed, load onto new gas purifying agent NaOH again, this device is installed in continues in the pumped vacuum systems to use again.
The above; It only is the preferred embodiment of the utility model; Be not that the utility model is done any restriction; Every according to the utility model technical spirit to any simple modification, change and equivalent structure transformation that above embodiment did, all still belong in the protection domain of the utility model technical scheme.
Claims (8)
1. gas cleaning plant is used in a titanium, zirconium vacuum heat and melting; It is characterized in that: comprise shell (6) and be arranged on shell (6) inner and be used for the many pipelines (4) of splendid attire gas purifying agent; Have a plurality of through holes (4-1) on the said pipeline (4); One end of said shell (6) is equipped with first flange (7), and the other end of said shell (6) is equipped with the housing end plug (2) that air-vent is offered at the middle part, and second flange (1) is installed on the outer surface of said housing end plug (2).
2. use gas cleaning plant according to the described a kind of titanium of claim 1, zirconium vacuum heat and melting; It is characterized in that: said pipeline (4) is installed in and is positioned on the inner deflection plate (3) of shell (6); The quantity of said deflection plate (3) is polylith; The said deflection plate of polylith (3) is provided with at interval, and the said deflection plate of polylith (3) is fixed together through screw rod (5); The left end of said screw rod (5) passes housing end plug (2) and is fixed on the housing end plug (2) through nut (2-1).
3. use gas cleaning plant according to claim 1 or 2 described a kind of titaniums, zirconium vacuum heat and melting, it is characterized in that: the shape of cross section of said shell (6) is for circular.
4. use gas cleaning plant according to the described a kind of titanium of claim 3, zirconium vacuum heat and melting, it is characterized in that: said deflection plate (3) be shaped as semicircle, the external diameter of said deflection plate (3) is than the little 0.5mm～1.0mm of internal diameter of shell (6).
5. use gas cleaning plant according to claim 1 or 2 described a kind of titaniums, zirconium vacuum heat and melting; It is characterized in that: the flange of the lobe pump (9) on an end of said first flange (7) and the pumped vacuum systems is connected, and the flange of the sliding vane rotary pump (8) on an end of said second flange (1) and the pumped vacuum systems is connected.
6. use gas cleaning plant according to claim 1 or 2 described a kind of titaniums, zirconium vacuum heat and melting, it is characterized in that: a plurality of said through holes (4-1) evenly are provided with.
7. use gas cleaning plant according to claim 1 or 2 described a kind of titaniums, zirconium vacuum heat and melting, it is characterized in that: said pipeline (4) is the titanium pipe.
8. use gas cleaning plant according to claim 1 or 2 described a kind of titaniums, zirconium vacuum heat and melting; It is characterized in that: the other end of said first flange (7) is welded on an end of shell (6); Said housing end plug (2) is welded on the other end of shell (6), and the other end of said second flange (1) is welded on the outer surface of housing end plug (2).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012200661763U CN202438259U (en) | 2012-02-25 | 2012-02-25 | Gas purification device for titanium and zirconium vacuum heat treatment and melting |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012200661763U CN202438259U (en) | 2012-02-25 | 2012-02-25 | Gas purification device for titanium and zirconium vacuum heat treatment and melting |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202438259U true CN202438259U (en) | 2012-09-19 |
Family
ID=46819716
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2012200661763U Expired - Fee Related CN202438259U (en) | 2012-02-25 | 2012-02-25 | Gas purification device for titanium and zirconium vacuum heat treatment and melting |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202438259U (en) |
-
2012
- 2012-02-25 CN CN2012200661763U patent/CN202438259U/en not_active Expired - Fee Related
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20120919 Termination date: 20150225 |
|
| EXPY | Termination of patent right or utility model |