CN215369959U - Steam turbine barring fume extractor - Google Patents
Steam turbine barring fume extractor Download PDFInfo
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- CN215369959U CN215369959U CN202122081463.3U CN202122081463U CN215369959U CN 215369959 U CN215369959 U CN 215369959U CN 202122081463 U CN202122081463 U CN 202122081463U CN 215369959 U CN215369959 U CN 215369959U
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Abstract
The utility model discloses a steam turbine barring smoke exhaust device which comprises an upper straight pipe, a lower straight pipe and an oil exhaust pipeline, wherein the bottom of the upper straight pipe is fixedly connected with the lower straight pipe, and the bottom of the lower straight pipe is connected with a box cover above a barring gear through a bolt; go up the top of straight tube and be provided with the filter screen subassembly, go up and be provided with at least one baffle in the straight tube, the lower part of going up the straight tube side is provided with the oil extraction pipeline, and is provided with the valve on the oil extraction pipeline, and the other end of oil extraction pipeline links together with returning oil pipe. The utility model avoids the lubricating oil from spraying oil outwards from the smoke exhaust hood on the bearing box in the high-speed rotation of the rotor during the operation under the condition of not influencing the normal smoke exhaust, and has the advantages of convenient use, simple operation and easy popularization.
Description
The technical field is as follows:
the utility model relates to a smoke exhaust hood for preventing oil throwing, in particular to a turning gear smoke exhaust device of a steam turbine.
Background art:
the turning gear of the steam turbine body is arranged on a rear bearing box cover of the steam turbine, and a smoke exhaust hood is generally arranged on a box cover above a turning gear, so that the purpose is that a large shaft gear of the steam turbine generates oil smoke to be exhausted when a unit runs at a high speed; when the existing smoke exhaust hood is used, the following defects can exist: the phenomena of smoke and oil shedding can occur when the turbine rotor runs at a high speed. The flue gas passes through the enclosure and outwards discharges, and lubricating oil also can outwards spill over through the enclosure, can appear the oil spout phenomenon under the severe condition.
The utility model has the following contents:
the technical problem to be solved by the utility model is as follows: the defects of the prior art are overcome, the steam turbine barring smoke exhaust device is provided, smooth emission of smoke is guaranteed, and meanwhile the condition of outward spraying of lubricating oil can be prevented.
The technical scheme adopted by the utility model for solving the technical problem is as follows:
a steam turbine barring smoke exhaust device comprises an upper straight pipe, a lower straight pipe and an oil exhaust pipeline, wherein the bottom of the upper straight pipe is fixedly connected with the lower straight pipe, and the bottom of the lower straight pipe is connected with a box cover above a barring gear through a bolt; the oil filter is characterized in that a filter screen assembly is arranged at the top of the upper straight pipe, at least one partition plate is arranged in the upper straight pipe, an oil discharge pipeline is arranged at the lower part of the side face of the upper straight pipe, a valve is arranged on the oil discharge pipeline, and the other end of the oil discharge pipeline is connected with an oil return pipe.
The bottom of the upper straight pipe is communicated with the interior of the lower straight pipe, the upper straight pipe is distributed in an opening shape at the upper end, and the bottom of the lower straight pipe is communicated with the interior of the barring gear.
The outer wall of the bottom end of the lower straight pipe is provided with a flange, and the flange is connected with a box cover above the turning gear through bolts.
And the left port of the oil discharge pipeline is positioned at the position of the side surface of the upper straight pipe close to the bottom.
The filter screen assembly comprises a cylinder body, an outer annular extension plate and a filter screen, wherein the cylinder body is distributed in a shape of openings at two ends, the filter screen is arranged at the bottom of the cylinder body, and the outer wall of the top of the cylinder body is provided with the outer annular extension plate; the barrel is inserted in the upper straight pipe, the outer ring extending plate is located above the upper straight pipe, and the outer ring extending plate is fixedly connected with the upper end of the upper straight pipe through a bolt.
The partition plates are distributed in a semicircular shape, and the cross section of each partition plate is half of that of the upper straight pipe; the arc outer edge of the partition plate is welded with the inner wall of the upper straight pipe, and the upper partition plate and the lower partition plate which are adjacent are distributed in a staggered mode.
The utility model has the following positive beneficial effects:
1. according to the utility model, the partition plates are arranged in the upper straight pipe, and the upper and lower adjacent partition plates are distributed in a staggered manner, so that the smooth emission of smoke is not influenced, and the oil throwing condition is avoided; through setting up the oil extraction pipe in last straight tube side lower part, during the use, open the valve on the oil extraction pipe to with the other end and the time oil pipe way connection of arranging the oil extraction pipe, when the oil condition appears getting rid of in last straight tube bottom, lubricating oil gets back to the oil pipe way again through oil extraction pipeline, avoids causing the extravagant condition.
2. The utility model is provided with the filter screen component in the upper straight pipe, and the filter screen component is connected with the upper straight pipe through the bolt, thereby being convenient for use and being convenient for disassembly, assembly and cleaning.
Description of the drawings:
FIG. 1 is a schematic structural view of the present invention;
FIG. 2 is a schematic view of a screen assembly according to the present invention;
FIG. 3 is a distribution diagram of the separator of the present invention.
The specific implementation mode is as follows:
the utility model will be further explained and explained with reference to the drawings, in which:
example (b): referring to fig. 1-3, a steam turbine barring smoke exhaust device comprises an upper straight pipe 1, a lower straight pipe 2 and an oil exhaust pipeline 5, wherein the bottom of the upper straight pipe 1 is fixedly connected with the lower straight pipe 2, and the bottom of the lower straight pipe 2 is connected with a box cover above a barring gear through a bolt; go up the top of straight tube 1 and be provided with the filter screen subassembly, go up and be provided with at least one baffle 7 in the straight tube 1, the lower part of going up the straight tube 1 side is provided with oil drain pipe 5, and is provided with valve 4 on oil drain pipe 5, and oil drain pipe 5's the other end links together with returning the oil pipe.
The bottom of the upper straight pipe 1 is communicated with the interior of the lower straight pipe 2, the upper end of the upper straight pipe 1 is distributed in an opening shape, and the bottom of the lower straight pipe 2 is communicated with the interior of the barring gear.
The outer wall of the bottom end of the lower straight pipe 2 is provided with a flange 3, and the flange 3 is connected with a box cover above the turning gear through bolts.
The left end opening of the oil discharge pipeline 5 is positioned at the position of the side surface of the upper straight pipe 1 close to the bottom, and the clapboard 7 positioned at the lowest end of the upper straight pipe 1 is positioned above the left end opening of the oil discharge pipeline 5.
The filter screen assembly consists of a cylinder body 601, an outer annular extension plate 602 and a filter screen 603, wherein the cylinder body 601 is distributed in a shape of openings at two ends, the filter screen 603 is arranged at the bottom of the cylinder body 601, and the outer wall of the top of the cylinder body 601 is provided with the outer annular extension plate 602; the cylinder 601 is inserted into the upper straight pipe, the outer annular extension plate 602 is located above the upper straight pipe 601, and the outer annular extension plate 602 is fixedly connected with the upper end of the upper straight pipe 601 through a bolt.
The partition plates 7 are distributed in a semicircular shape, and the cross section of each partition plate 7 is half of that of the upper straight pipe 1; the arc outer edge of the clapboard 7 is welded with the inner wall of the upper straight pipe 1, and the clapboards 7 which are adjacent up and down are distributed in a staggered way.
In the above description, the left end of the oil discharge pipeline is connected with the upper straight pipe and is connected with the inside of the upper straight pipe, and the right end of the oil discharge pipeline is connected with the oil return pipeline; in practical use, four partition plates are generally arranged in the upper straight pipe, and the upper and lower adjacent partition plates are distributed in parallel.
In the above description, the fact that the adjacent upper and lower partition plates are distributed in a staggered manner means that: the baffle plates which are distributed in a staggered way form a circular section when the top of the upper straight pipe is seen downwards.
In the above description, the partition is a half of the cross section of the upper straight pipe.
In the above description, the bottom of the upper straight pipe is provided with a hole matched with the lower straight pipe, the bottom of the upper straight pipe is fixedly connected with the top of the lower straight pipe, the two pipelines are communicated with each other, and the bottom of the lower straight pipe is distributed in an open shape.
In the above description, the distance between the upper and lower adjacent partition plates is the same, and the distance between the uppermost partition plate and the top of the upper straight tube is the same as the distance between the adjacent partition plates, and the distance between the lowermost partition plate and the bottom of the upper straight tube is the same as the distance between the adjacent partition plates.
In the above description, the inner diameter of the upper straight pipe matches the outer diameter of the cylinder 601.
In the above description, the normal case of the device is: negative pressure is formed in the oil return chamber of the steam turbine oil return system and each bearing box, and the oil smoke mixture is discharged; if the negative pressure of each bearing box chamber is too large, the shaft seal air leakage of the steam turbine can flow into the bearing box to cause water inflow in oil, when the equipment is operated, the negative pressure can be adjusted to remove most of flue gas and oil smoke mixture, and a small amount of flue gas and oil smoke mixture is removed from the smoke exhaust hood.
In practical use, two devices are arranged on the box cover above the turning gear, so that the oil smoke can be discharged quickly.
According to the utility model, the partition plate is arranged in the upper straight pipe, and the oil discharge pipeline is arranged at the lower part of the side surface of the upper straight pipe, so that lubricating oil is prevented from being sprayed outwards from the smoke exhaust hood on the bearing box easily during high-speed rotation of the rotor during operation under the condition of not influencing normal smoke exhaust, and the oil discharge device is convenient to use, simple to operate and easy to popularize.
Claims (6)
1. The utility model provides a steam turbine barring fume extractor, includes straight tube (1), lower straight tube (2) and oil extraction pipeline (5), its characterized in that: the bottom of the upper straight pipe (1) is fixedly connected with a lower straight pipe (2), and the bottom of the lower straight pipe (2) is connected with a box cover above the turning gear through a bolt; go up the top of straight tube (1) and be provided with the filter screen subassembly, upward be provided with at least one baffle (7) in straight tube (1), the lower part of going up straight tube (1) side is provided with oil drain pipe way (5), and is provided with valve (4) on oil drain pipe way (5), the other end and the time oil pipe of oil drain pipe way (5) link together.
2. The steam turbine turning gear smoke evacuation device of claim 1, wherein: the bottom of the upper straight pipe (1) is communicated with the interior of the lower straight pipe (2), the upper straight pipe (1) is distributed in an upper end opening shape, and the bottom of the lower straight pipe (2) is communicated with the interior of the barring gear.
3. The steam turbine turning gear smoke evacuation device of claim 1, wherein: the outer wall of the bottom end of the lower straight pipe (2) is provided with a flange (3), and the flange (3) is connected with a box cover above the turning gear through bolts.
4. The steam turbine turning gear smoke evacuation device of claim 1, wherein: the left end opening of the oil discharge pipeline (5) is located at the position, close to the bottom, of the side face of the upper straight pipe (1), and the partition plate (7) located at the lowest end of the upper straight pipe (1) is located above the left end opening of the oil discharge pipeline (5).
5. The steam turbine turning gear smoke evacuation device of claim 1, wherein: the filter screen assembly comprises a cylinder body (601), an outer annular extension plate (602) and a filter screen (603), wherein the cylinder body (601) is distributed in a shape with openings at two ends, the filter screen (603) is arranged at the bottom of the cylinder body (601), and the outer wall of the top of the cylinder body (601) is provided with the outer annular extension plate (602); the cylinder body (601) is inserted into the upper straight pipe, the outer ring extending plate (602) is located above the upper straight pipe (1), and the outer ring extending plate (602) is fixedly connected with the upper end of the upper straight pipe (1) through a bolt.
6. The steam turbine turning gear smoke evacuation device of claim 1, wherein: the partition plates (7) are distributed in a semicircular shape, and the cross sections of the partition plates (7) are half of the cross section of the upper straight pipe (1); the arc-shaped outer edges of the partition plates (7) are welded with the inner wall of the upper straight pipe (1), and the partition plates (7) which are adjacent up and down are distributed in a staggered manner.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202122081463.3U CN215369959U (en) | 2021-08-31 | 2021-08-31 | Steam turbine barring fume extractor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202122081463.3U CN215369959U (en) | 2021-08-31 | 2021-08-31 | Steam turbine barring fume extractor |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN215369959U true CN215369959U (en) | 2021-12-31 |
Family
ID=79619526
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202122081463.3U Active CN215369959U (en) | 2021-08-31 | 2021-08-31 | Steam turbine barring fume extractor |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN215369959U (en) |
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2021
- 2021-08-31 CN CN202122081463.3U patent/CN215369959U/en active Active
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