CN203613218U - Pumping pipeline of mechanical vacuum pump of vacuum refining furnace - Google Patents
Pumping pipeline of mechanical vacuum pump of vacuum refining furnace Download PDFInfo
- Publication number
- CN203613218U CN203613218U CN201320694593.7U CN201320694593U CN203613218U CN 203613218 U CN203613218 U CN 203613218U CN 201320694593 U CN201320694593 U CN 201320694593U CN 203613218 U CN203613218 U CN 203613218U
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- pipeline
- vacuum
- refining furnace
- pump
- vacuum refining
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Abstract
The utility model discloses a pumping pipeline of a mechanical vacuum pump of a vacuum refining furnace and relates to the field of VD (vacuum degassing) vacuum refining furnaces. The pumping pipeline of the mechanical vacuum pump of the vacuum refining furnace is applied to the VD vacuum refining furnace and can prevent the huge pressure difference from being produced before and behind a bag-type dust collector. The pumping pipeline of the mechanical vacuum pump of the vacuum refining furnace comprises a first pipeline, a cyclone dust collector, second pipelines, the bag-type dust collector and a third pipeline which are arranged and connected sequentially, wherein one end of the third pipeline is a mechanical vacuum pump connecting end; the pumping pipeline of the mechanical vacuum pump of the VD furnace further comprises a by-pass pipeline and a valve; two ends of the by-pass pipeline are connected with the first pipeline and the third pipeline respectively; and the valve controls connection and disconnection of the by-pass pipeline. The by-pass pipeline can be connected directly in a high vacuum stage of VD treatment to pump out gases, so that the huge pressure difference before and behind the bag-type dust collector is effectively avoided, the service life of the bag-type dust collector is prolonged, in addition, the pumping time is greatly shortened, the vacuum treatment time is shortened, and the production efficiency is improved.
Description
Technical field
The utility model relates to VD vacuum refining furnace field, relates in particular to a kind of VD vacuum refining furnace oil-sealed rotary pump pump-line.
Background technology
Domestic common VD vacuum refining furnace oil-sealed rotary pump pump-line is mainly made up of tornado dust collector, sack cleaner and pipeline, and gas entered tornado dust collector before this again by sack cleaner, finally entered mechanical vacuum pump system.
In service in actual production, VD vacuum-treat is in different periods, all there is very large difference in gas production rate and fuel gas and dust composition, entering high vacuum stage of Fig, gas production rate is very small, and fuel gas and dust granularity is also very small, and now gas enters mechanical vacuum pump system by former pump-line, form huge pressure reduction before and after the sack cleaner, the sack cleaner life-span is caused to tremendous influence.
Utility model content
The technical problems to be solved in the utility model is: provide a kind of sack cleaner front and back of can avoiding of the VD of being applied to vacuum refining furnace to form the vacuum refining furnace oil-sealed rotary pump pump-line of huge pressure reduction.
For the technical scheme that addresses the above problem employing is: vacuum refining furnace oil-sealed rotary pump pump-line comprises the first pipeline, tornado dust collector, second pipe, sack cleaner and the 3rd pipeline that set gradually and connect, the 3rd pipe end is oil-sealed rotary pump coupling end, VD stove oil-sealed rotary pump pump-line also comprises by-pass line and valve, by-pass line two ends are connected with the first pipeline and the 3rd pipeline respectively, valve control by-pass line break-make.
Further: vacuum refining furnace oil-sealed rotary pump pump-line comprises dust granules degree detecting instrument, dust granules degree detecting instrument is in by-pass line inside and between the first pipeline and valve.
Further: vacuum refining furnace oil-sealed rotary pump pump-line comprises temperature detection instrument, temperature detection instrument is in by-pass line inside and between the first pipeline and valve.
Further: dust granules degree detecting instrument and temperature detection instrument co-controlling valve event.
The beneficial effects of the utility model are: owing to having increased by-pass line, the high vacuum stage of Fig of processing at VD can directly be opened by-pass line gas is extracted out, effectively avoid the huge pressure reduction of sack cleaner front and back, increase the life-span of sack cleaner, also greatly shortened the time of bleeding simultaneously, shorten vacuum processing time, enhance productivity.
Accompanying drawing explanation:
Fig. 1 is the utility model vacuum refining furnace oil-sealed rotary pump pump-line schematic diagram;
Fig. 2 is prior art vacuum refining furnace oil-sealed rotary pump pump-line schematic diagram; ;
In figure, be labeled as: the first pipeline 1, tornado dust collector 2, second pipe 3, sack cleaner 4, the 3rd pipeline 5, oil-sealed rotary pump coupling end 6, valve 7, dust granules degree detecting instrument 8, temperature detection instrument 9, by-pass line 10.
Embodiment
Below in conjunction with the drawings and specific embodiments, the utility model is further illustrated.
Vacuum refining furnace oil-sealed rotary pump pump-line comprises the first pipeline 1, tornado dust collector 2, second pipe 3, sack cleaner 4 and the 3rd pipeline 5 that set gradually and connect, the 3rd pipeline 5 ends are oil-sealed rotary pump coupling end 6, vacuum refining furnace oil-sealed rotary pump pump-line also comprises by-pass line 10 and valve 7, by-pass line 10 two ends are connected with the first pipeline 1 and the 3rd pipeline 5 respectively, and valve 7 is controlled by-pass line 10 break-makes.Under normal circumstances, valve 7 blocks by-pass line 10, and vacuum refining furnace oil-sealed rotary pump pump-line is consistent with prior art mode of operation.The high vacuum stage of Fig of processing at VD, valve 7 is opened, and gas is extracted out from by-pass line 10, effectively avoid the huge pressure reduction of sack cleaner 4 front and back, increased the life-span of sack cleaner 4, also greatly shortened the time of bleeding simultaneously, shorten vacuum processing time, enhance productivity.
For simplified construction, by-pass line 10 can weld with the first pipeline 1 and the 3rd pipeline 5; For the ease of dismounting, can on the first pipeline 1 and the 3rd pipeline 5, Y-junction be set, by-pass line 10 is connected with Y-junction.Welding or connection all should note guaranteeing resistance to air loss.
Determine 7 unlatching opportunitys of valve for the ease of observing, by-pass line 10 inside can arrange dust granules degree detecting instrument 8 and temperature detection instrument 9.Dust granules degree detecting instrument 8 and temperature detection instrument 9 should be in by-pass line 10 inside and between the first pipeline 1 and valve 7.Dust granules degree signal and temperature signal can be delivered to indicating meter, be shown and artificial judgment opening-closing valve 7 by indicating meter.In order to improve level of automation, save manually, also can be moved by dust granules degree detecting instrument 8 and the direct by-pass valve control 7 of temperature detection instrument 9.
Claims (4)
1. vacuum refining furnace oil-sealed rotary pump pump-line, comprise the first pipeline (1), tornado dust collector (2), second pipe (3), sack cleaner (4) and the 3rd pipeline (5) that set gradually and connect, the 3rd pipeline (5) end is oil-sealed rotary pump coupling end (6), it is characterized in that: comprise by-pass line (10) and valve (7), by-pass line (10) two ends are connected with the first pipeline (1) and the 3rd pipeline (5) respectively, and valve (7) is controlled by-pass line (10) break-make.
2. vacuum refining furnace oil-sealed rotary pump pump-line according to claim 1, it is characterized in that: comprise dust granules degree detecting instrument (8), dust granules degree detecting instrument (8) is positioned at by-pass line (10) inside and is positioned between the first pipeline (1) and valve (7).
3. vacuum refining furnace oil-sealed rotary pump pump-line according to claim 2, is characterized in that: comprise temperature detection instrument (9), temperature detection instrument (9) is positioned at by-pass line (10) inside and is positioned between the first pipeline (1) and valve (7).
4. vacuum refining furnace oil-sealed rotary pump pump-line according to claim 3, is characterized in that: dust granules degree detecting instrument (8) and temperature detection instrument (9) co-controlling valve (7) action.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320694593.7U CN203613218U (en) | 2013-11-05 | 2013-11-05 | Pumping pipeline of mechanical vacuum pump of vacuum refining furnace |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320694593.7U CN203613218U (en) | 2013-11-05 | 2013-11-05 | Pumping pipeline of mechanical vacuum pump of vacuum refining furnace |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203613218U true CN203613218U (en) | 2014-05-28 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201320694593.7U Expired - Fee Related CN203613218U (en) | 2013-11-05 | 2013-11-05 | Pumping pipeline of mechanical vacuum pump of vacuum refining furnace |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203613218U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104846151A (en) * | 2015-06-01 | 2015-08-19 | 重庆钢铁集团设计院有限公司 | Vacuum tank vacuumizing method and liquid steel vacuum refining method thereof |
-
2013
- 2013-11-05 CN CN201320694593.7U patent/CN203613218U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104846151A (en) * | 2015-06-01 | 2015-08-19 | 重庆钢铁集团设计院有限公司 | Vacuum tank vacuumizing method and liquid steel vacuum refining method thereof |
| CN104846151B (en) * | 2015-06-01 | 2016-08-24 | 重庆钢铁集团设计院有限公司 | A kind of vacuum tank vacuum pumping method and vacuum refining method of molten steel thereof |
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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 | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20140528 Termination date: 20161105 |