Hydrogen sealing oil shield of generator

Abstract

The utility model provides a generator hydrogen seal oil retainer, which relates to the technical field of generators and comprises an upper oil retainer semi-ring and a lower oil retainer semi-ring, the lower oil retainer semi-ring is attached to the lower surface of the upper oil retainer semi-ring, and an anti-seepage slope is arranged on the upper end face of the lower oil retainer semi-ring. The lower oil retainer semi-ring is connected with the lower surface of the upper oil retainer semi-ring in a matched and clamped mode through an anti-seepage inclined face, oil discharge holes are symmetrically formed in the arc face of the inner side of the lower oil retainer semi-ring and communicate with the bottom face of the anti-seepage inclined face through oil discharge grooves, an oil injection channel is formed in the upper oil retainer semi-ring, and oil outlet holes communicate with the inner side end of the oil injection channel at equal intervals. The generator hydrogen seal oil retainer solves the problems that an existing generator hydrogen seal oil retainer is generally integrally manufactured, is seriously abraded after being used for a long time and is inconvenient to disassemble and replace.

Description

Technical Field

[0001] The utility model relates to the technical field of generators, in particular to a hydrogen sealing oil stopper for generators. Background Art

[0002] Generator sealing oil system: Steam turbine generators using hydrogen cooling must have their ends sealed with sealing oil to ensure that hydrogen inside the generator does not leak out and to prevent air and moisture from entering the generator. In order to prevent the sealing oil from leaking out, an oil stopper must be used to block the sealing oil from flowing out. However, the existing generator hydrogen sealing oil stopper is usually made in one piece, which is severely worn after long-term use and is not convenient for disassembly and replacement. Utility Model Content

[0003] In order to overcome the defects of the prior art, a generator hydrogen seal oil stopper is provided to solve the problem that the existing generator hydrogen seal oil stopper is usually made in one piece, is severely worn after long-term use, and is not convenient to disassemble and replace.

[0004] In order to achieve the above object, a generator hydrogen seal oil stopper is provided, comprising: an upper oil stopper half ring and a lower oil stopper half ring, wherein the lower surface of the upper oil stopper half ring is attached to the lower oil stopper half ring.

[0005] The upper end surface of the lower oil baffle half ring is provided with an anti-seepage inclined surface, and the lower oil baffle half ring is fitted and clamped with the lower surface of the upper oil baffle half ring through the anti-seepage inclined surface. The inner arc surface of the lower oil baffle half ring is symmetrically provided with oil drainage holes, and the oil drainage holes are connected with the bottom surface of the anti-seepage inclined surface through the oil drainage groove. The upper oil baffle half ring is provided with an oil injection channel inside, and the inner end of the oil injection channel is equidistantly connected with oil outlet holes.

[0006] Furthermore, the front ends of the upper oil baffle half ring and the lower oil baffle half ring are both welded with front shaft connecting parts, and the rear ends of the upper oil baffle half ring and the lower oil baffle half ring are both welded with rear shaft connecting parts.

[0007] Furthermore, a fixing plate is welded on the outer side surface of the rear shaft connection, and the upper oil baffle half ring and the lower oil baffle half ring are connected to the generator sealing shoe through the front shaft connection and the rear shaft connection.

[0008] Furthermore, an oil filling hole is arranged on the front surface of the upper oil baffle half ring, the surface of the oil filling hole is sealed with an oil plug cover, and sealing gaskets are bonded to the inner sides of the upper oil baffle half ring and the lower oil baffle half ring.

[0009] Furthermore, spacer rings are welded to the inner arc surfaces of the upper oil baffle half ring and the lower oil baffle half ring, and sealing grooves are provided on the front and rear sides of the spacer rings.

[0010] Furthermore, an oil inlet groove is opened inside the top of the upper oil baffle half ring; and an oil plug cover is inserted into the notch at the front end of the oil inlet groove, and the lower end of the oil inlet groove is connected to an oil injection port.

[0011] Furthermore, the anti-seepage slope of the lower oil baffle half ring is in the shape of a sawtooth slope that is higher on the outside and lower on the inside, and the outer end of the upper oil baffle half ring is fixed to the lower oil baffle half ring by bolts.

[0012] The beneficial effect of the utility model lies in that the generator hydrogen sealing oil stop of the utility model utilizes the anti-seepage inclined surface of the lower oil stop half ring to fit and fix with the upper oil stop half ring, and injects sealing oil into the inner side of the oil stop ring through the oil filling channel on the inner side of the upper oil stop half ring, so that the anti-seepage inclined surface with a sawtooth inclined surface that is high on the outside and low on the inside blocks the inflow and seepage of oil on the inner side of the oil stop ring, thereby realizing a detachable generator hydrogen sealing oil stop structure, and conveniently replenishing sealing oil to the sealing tile of the generator hydrogen sealing oil stop, while strengthening the sealing effect of the joint of the generator hydrogen sealing tile, effectively avoiding oil leakage at the generator hydrogen sealing tile, and improving the sealing engagement effect of the generator hydrogen sealing oil stop. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] Figure 1 It is a front view structural schematic diagram of the hydrogen sealing oil stop of the generator according to an embodiment of the utility model.

[0014] Figure 2 It is a schematic diagram of the front cross-sectional structure of the hydrogen sealing oil stop of the generator according to an embodiment of the utility model.

[0015] Figure 3 The figure is a schematic side cross-sectional structure diagram of a hydrogen seal oil stop of a generator according to an embodiment of the utility model.

[0016] Figure 4 It is a partial side cross-sectional structural schematic diagram of the upper oil baffle half ring according to an embodiment of the utility model.

[0017] In the figure: 1. upper oil baffle half ring; 11. oil plug cover; 12. spacer ring; 13. sealing groove; 14. oil filling hole; 2. lower oil baffle half ring; 21. anti-seepage slope; 22. oil drain groove; 23. oil drain hole; 3. front shaft connection; 31. rear shaft connection; 32. fixed plate; 4. oil filling channel; 41. oil outlet hole; 42. oil inlet groove; 5. sealing gasket. DETAILED DESCRIPTION

[0018] Reference Figures 1 to 4 As shown, the utility model provides a generator hydrogen sealing oil stopper, comprising: an upper oil stopper half ring 1 and a lower oil stopper half ring 2, wherein the lower surface of the upper oil stopper half ring 1 is attached to the lower oil stopper half ring 2.

[0019] An anti-seepage slope 21 is provided on the upper end surface of the lower oil baffle half ring 2, and the lower oil baffle half ring 2 is fitted and clamped with the lower surface of the upper oil baffle half ring 1 through the anti-seepage slope 21. Oil drainage holes 23 are symmetrically opened on the inner arc surface of the lower oil baffle half ring 2, and the oil drainage holes 23 are connected with the bottom surface of the anti-seepage slope 21 through the oil drainage groove 22. An oil injection channel 4 is provided inside the upper oil baffle half ring 1, and the inner end of the oil injection channel 4 is equidistantly connected with oil outlet holes 41.

[0020] Working principle: the anti-seepage slope 21 of the lower oil baffle half ring 2 is fitted and fixed with the upper oil baffle half ring 1, and sealing oil is injected into the inner side of the oil baffle ring through the oil filling channel 4 on the inner side of the upper oil baffle half ring 1, so that the anti-seepage slope 21 with a sawtooth slope shape of high outside and low inside blocks the inflow and seepage of oil on the inner side of the oil baffle ring, thereby realizing a detachable generator hydrogen sealing oil block structure, and conveniently replenishing sealing oil to the sealing tile of the generator hydrogen sealing oil block, while strengthening the sealing effect of the joint of the generator hydrogen sealing tile, effectively avoiding oil leakage at the generator hydrogen sealing tile, and improving the sealing engagement effect of the generator hydrogen sealing oil block.

[0021] In this embodiment, the front ends of the upper oil baffle half ring 1 and the lower oil baffle half ring 2 are welded with front shaft connectors 3, and the rear ends of the upper oil baffle half ring 1 and the lower oil baffle half ring 2 are welded with rear shaft connectors 31.

[0022] As a preferred embodiment, the rear shaft connection member 31 and the front shaft connection member 3 are used to position and fix the upper oil baffle half ring 1 and the lower oil baffle half ring 2 to prevent the upper oil baffle half ring 1 and the lower oil baffle half ring 2 from shifting.

[0023] In this embodiment, a fixing plate 32 is welded to the outer side of the rear shaft connection 31 , and the upper oil baffle half ring 1 and the lower oil baffle half ring 2 are connected to the generator sealing shoe through the front shaft connection 3 and the rear shaft connection 31 .

[0024] As a preferred embodiment, the upper oil baffle half ring 1 and the lower oil baffle half ring 2 are connected to the generator sealing shoe to form a complete generator hydrogen sealing oil baffle, which is convenient for preventing the outflow of sealing oil in the generator and the entry of foreign matter.

[0025] In this embodiment, an oil filling hole 14 is provided on the front surface of the upper oil baffle half ring 1, and an oil plug cover 11 is sealed on the surface of the oil filling hole 14. Sealing gaskets 5 are bonded to the inner sides of the upper oil baffle half ring 1 and the lower oil baffle half ring 2.

[0026] As a preferred embodiment, the oil filling hole 14 is used to add sealing oil into the oil retaining ring, and the sealing oil can be added directly without disassembling the oil retaining ring. The sealing gasket 5 is convenient for preventing oil from flowing out from both sides of the oil retaining half ring.

[0027] In this embodiment, a spacer ring 12 is welded to the inner arc surface of the upper oil baffle half ring 1 and the lower oil baffle half ring 2 , and sealing grooves 13 are provided at the front and rear sides of the spacer ring 12 .

[0028] As a preferred embodiment, the spacing of the spacer rings 12 forms a sealing groove 13 to facilitate the distribution of turbine blades. The sealing groove 13 is provided with an oil plug cover 11 to facilitate the inflow of sealing oil.

[0029] In this embodiment, an oil inlet groove 42 is opened inside the top of the upper oil baffle half ring 1; and an oil plug cover 11 is inserted into the front notch of the oil inlet groove 42, and the lower end of the oil inlet groove 42 is connected to the oil injection channel 4.

[0030] As a preferred embodiment, the oil inlet groove 42 delivers the sealing oil injected from the oil filling hole 14 into the oil filling hole 14 , so that the oil filling hole 14 delivers the sealing oil into the sealing groove 13 .

[0031] In this embodiment, the anti-seepage slope 21 of the lower oil baffle half ring 2 is in the shape of a sawtooth slope with a high outer side and a low inner side, and the outer end of the upper oil baffle half ring 1 is fixed to the lower oil baffle half ring 2 by bolts.

[0032] As a preferred embodiment, the anti-seepage slope 21 with a high outer side and a low inner side is used to disassemble and assemble the generator hydrogen sealing oil stop, and at the same time, it is convenient to replenish the sealing oil to the sealing tile of the generator hydrogen sealing oil stop, while strengthening the sealing effect of the joint of the generator hydrogen sealing tile, effectively avoiding oil leakage at the generator hydrogen sealing tile, and improving the sealing engagement effect of the generator hydrogen sealing oil stop.

[0033] The generator hydrogen sealing oil stopper of the utility model can effectively solve the problem that the existing generator hydrogen sealing oil stopper is usually made of one piece, is severely worn out after long-term use and is not convenient to disassemble and replace, realizes a detachable generator hydrogen sealing oil stopper structure, and conveniently replenishes sealing oil to the sealing tiles of the generator hydrogen sealing oil stopper, and at the same time strengthens the sealing effect of the joint of the generator hydrogen sealing tile, effectively avoids oil leakage at the generator hydrogen sealing tile, improves the sealing engagement effect of the generator hydrogen sealing oil stopper, and is suitable for generator hydrogen sealing oil stops.

Claims

1. A hydrogen sealing oil stopper for a generator, comprising: An upper oil baffle half ring (1) and a lower oil baffle half ring (2), wherein the lower surface of the upper oil baffle half ring (1) is bonded to the lower oil baffle half ring (2), and the characteristics are: The upper end surface of the lower oil baffle half ring (2) is provided with an anti-seepage inclined surface (21), and the lower oil baffle half ring (2) is engaged and clamped with the lower surface of the upper oil baffle half ring (1) via the anti-seepage inclined surface (21). The inner arc surface of the lower oil baffle half ring (2) is symmetrically provided with oil discharge holes (23), and the oil discharge holes (23) are connected to the bottom surface of the anti-seepage inclined surface (21) via an oil discharge groove (22). The upper oil baffle half ring (1) is provided with an oil injection channel (4) inside, and the inner end of the oil injection channel (4) is equidistantly connected to oil outlet holes (41).

2. A generator hydrogen sealing oil stopper according to claim 1, characterized in that: The front ends of the upper oil baffle half ring (1) and the lower oil baffle half ring (2) are both welded with a front shaft connection piece (3), and the rear ends of the upper oil baffle half ring (1) and the lower oil baffle half ring (2) are both welded with a rear shaft connection piece (31).

3. A generator hydrogen sealing oil stopper according to claim 2, characterized in that: A fixing plate (32) is welded to the outer side surface of the rear shaft connection member (31), and the upper oil baffle half ring (1) and the lower oil baffle half ring (2) are connected to the generator sealing shoe via the front shaft connection member (3) and the rear shaft connection member (31).

4. A hydrogen sealing oil stopper for a generator according to claim 1, characterized in that: The front surface of the upper oil baffle half ring (1) is provided with an oil filling hole (14), the surface of the oil filling hole (14) is sealed with an oil plug cover (11), and the inner sides of the upper oil baffle half ring (1) and the lower oil baffle half ring (2) are bonded with sealing gaskets (5).

5. The hydrogen sealing oil stopper for a generator according to claim 1, characterized in that: A spacer ring (12) is welded to the inner arc surface of the upper oil baffle half ring (1) and the lower oil baffle half ring (2), and sealing grooves (13) are provided on the front and rear sides of the spacer ring (12).

6. A generator hydrogen sealing oil stopper according to claim 1, characterized in that: An oil inlet groove (42) is provided inside the top end of the upper oil baffle half ring (1); an oil plug cover (11) is inserted into the front notch of the oil inlet groove (42); and the lower end of the oil inlet groove (42) is connected to an oil injection channel (4).

7. A generator hydrogen sealing oil stopper according to claim 1, characterized in that: The anti-seepage inclined surface (21) of the lower oil baffle half ring (2) is in the shape of a sawtooth inclined surface with a high outer surface and a low inner surface. The outer end of the upper oil baffle half ring (1) is fixed to the lower oil baffle half ring (2) by means of bolts.

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