CN201535220U - Oil receiver of centrally-mounted water turbine - Google Patents

Abstract

The utility model relates to an oil receiver of a main shaft of a water turbine, in particular to an oil receiver of a centrally-mounted water turbine. The utility model mainly aims at the defects of large size and heavy weight of the oil receiver of the water turbine, long length of an operation oil pipe inside the main shaft in the prior art, and designs the oil receiver of the centrally-mounted water turbine with the advantages of small size, light weight and capability of reducing the length of the operation oil pipe inside the main shaft. The utility model is arranged on the main shaft near a machine head, the main shaft is connected with an electricity generator set through a transmission box, the oil receiver of the centrally-mounted water turbine comprises an oil inlet pipe and an oil receiving pipe which are connected through a floating ring provided with through holes, the outer side of the floating ring is provided with a floating ring seat, the floating ring seat is connected with an oil collection seat through a screw bolt A, the oil collection seat is connected with an oil cavity, the outer side of the oil cavity is provided with a case, an oil baffle ring is arranged between the oil cavity and the floating ring seat, and the oil baffle ring is connected with the floating ring seat through a screw bolt B.

Description

Middle turbine oil receiver

technical field

The utility model relates to an oil receiver for a main shaft of a hydraulic turbine, in particular to an oil receiver for a central hydraulic turbine.

Background technique

At present, the oil receivers of most domestic water turbines are installed at the end of the main shaft, and the volume is relatively large. The length of the oil pipe inside the main shaft is relatively long. Although the installation is more convenient, the maintenance and use are more complicated. In addition, the large volume leads to increased weight, which is not conducive to the rotation control of the main shaft of the water turbine. For example, the domestic publication number is 101363393 for the oil receiver of the paddle type water turbine. For example, the domestic publication number is 201297227, the improved structure of the oil receiver of the axial flow paddle turbine. They all adopt the above-mentioned structure.

Therefore, the utility model carries out structural improvement on the basis of reducing the volume and weight of the oil receiver of the water turbine, and reducing the length of the internal operation oil pipe of the main shaft.

Contents of the invention

The utility model mainly aims at the disadvantages of the prior art such as the large volume and weight of the oil receiver of the hydraulic turbine, and the long length of the operating oil pipe inside the main shaft, and designs a mid-mounted water turbine with small volume and light weight, which can reduce the short length of the operating oil pipe inside the main shaft. oil receiver.

The above-mentioned technical problem of the utility model is implemented through the following technical solutions:

The oil receiver of the central turbine is set on the main shaft close to the machine head, and the main shaft is connected with the generator set through the transmission box; Floating ring connection: a floating ring seat is provided outside the floating ring, and the floating ring is connected to the oil collecting seat through bolt A, the oil collecting seat is connected to the oil chamber, a casing is provided outside the oil chamber, and a Oil deflector ring, the oil deflector ring is connected with the floating ring seat through bolt B.

For the oil receiver of the above-mentioned mid-mounted water turbine, as a preference, a sealing ring is provided at the connection between the floating ring, the oil inlet pipe and the oil receiver pipe.

As for the oil receiver of the above-mentioned central water turbine, as a preference, the shell of the oil chamber is connected to the main shaft through bolts C.

As for the oil receiver of the above-mentioned mid-mounted hydraulic turbine, as a preference, the oil inlet pipe and the oil receiving pipe can be divided into three oil pipes for controlling the oil supply to the hub, the pressure oil for the closed cavity, and the pressure oil for the open cavity.

As for the oil receiver of the above-mentioned mid-mounted water turbine, as a preference, an oil layer is arranged between the floating ring and the main shaft.

As for the oil receiver of the above-mentioned mid-mounted water turbine, as a preference, there is an oil layer between the floating ring and the floating ring seat.

As for the oil receiver of the above-mentioned mid-mounted water turbine, as a preference, an oil leakage pipe is arranged on the outer casing.

As for the oil receiver of the above-mentioned mid-mounted water turbine, as a preference, an oil leakage hole is provided between the oil deflecting ring and the oil collecting seat, and the oil leakage hole communicates with the oil chamber and the side wall of the floating ring seat.

In summary, compared with the prior art, the utility model has the following advantages:

The utility model is arranged on the main shaft close to the machine head as a whole, with small volume and light weight, and the tight connection of each part minimizes the oil leakage, and the excess oil can be discharged through the gap.

Description of drawings

Fig. 1 is a side view sectional view of the utility model;

Fig. 2 is the enlarged view of A1 position of the present utility model;

The numbers in the figure are: 1. Main shaft, 2. Oil retaining ring, 3. Floating ring, 4. Floating ring seat, 6. Oil chamber, 7. Oil collecting seat, 8. Shell, 9. Oil leakage pipe, 10. Bolt C, 11, oil inlet pipe, 12, oil receiving pipe, 13, bolt A, 14, bolt B, 21, machine head, 22, transmission box, 23, generator set.

Detailed ways

Below by embodiment, in conjunction with accompanying drawing, the technical scheme of the utility model is further specifically described:

Example 1:

As shown in Fig. 1 and Fig. 2, the oil receiver of the central water turbine is arranged on the main shaft 1 close to the machine head 21, and the main shaft is connected with the generator set 23 through the transmission box 22; the oil receiver of the central water turbine includes the oil inlet pipe 11 and the Oil pipe 12, oil inlet pipe and oil receiving pipe all can be divided into three oil pipes of controlling wheel hub oil supply, closed cavity pressure oil, and open cavity pressure oil. The oil inlet pipe and the oil receiving pipe are connected through the floating ring 3 with through holes; the joints of the floating ring, the oil inlet pipe and the oil receiving pipe are all provided with sealing rings. An oil layer is arranged between the floating ring and the main shaft. A floating ring seat 4 is arranged on the outside of the floating ring, and there is an oil layer between the floating ring and the floating ring seat. The floating ring is connected to the oil collecting seat 7 through the bolt A13, the oil collecting seat is connected to the oil chamber 6, and the outer side of the oil chamber is provided with a casing 8, and the casing of the oil chamber is connected to the main shaft through the bolt C10, and the casing is provided with an oil leakage pipe 9 . An oil deflecting ring 2 is arranged between the oil chamber and the floating ring seat, and the oil deflecting ring is connected with the floating ring seat through the bolt B14.

An oil leakage hole is arranged between the oil retaining ring and the oil collecting seat, and the oil leakage hole communicates with the oil chamber and the side wall of the floating ring seat. The leaked oil flows into the oil cavity through the oil leakage hole, and then is discharged from the oil leakage pipe.

When in use, the oil inlet pipe supplies oil to the oil receiving pipe according to the needs. When the oil is supplied, it passes through the through hole of the floating ring. The floating ring sealed by the sealing ring can prevent the oil from leaking out, and part of the leaked oil enters through the gap and then through the oil leakage hole. The oil chamber, the oil in the oil chamber is discharged outward through the oil leakage pipe.

The specific embodiments described herein are only examples to illustrate the spirit of the present invention. Those skilled in the technical field to which the utility model belongs can make various modifications or supplements to the described specific embodiments or adopt similar methods to replace them, but they will not deviate from the spirit of the utility model or go beyond the appended claims defined range.

Claims (8)

1. a mid-turbine oil receptor is characterized in that, it is arranged near on the main shaft (1) of head (21), and main shaft is connected with generator set (23) two by transmission case (22); Mid-turbine oil receptor comprises oil inlet pipe (11) and is subjected to oil pipe (12), oil inlet pipe be subjected to be connected by the floating ring (3) of being with through hole between the oil pipe; The floating ring arranged outside has floating ring seat (4), floating ring is done by bolt A (13) and is connected with oil-collecting seat (7), and the oil-collecting seat is connected with oil pocket (6), and the oil pocket arranged outside has shell (8), be provided with flinger ring (2) between oil pocket and the floating ring seat, flinger ring is connected with the floating ring seat by bolt B (14).

2. mid-turbine oil receptor according to claim 1 is characterized in that, described floating ring and oil inlet pipe and be subjected to the joint of oil pipe to be provided with seal ring.

3. mid-turbine oil receptor according to claim 1 and 2 is characterized in that, the shell of described oil pocket is connected on the main shaft by bolt C (10).

4. mid-turbine oil receptor according to claim 1 and 2 is characterized in that, described oil inlet pipe all can be divided into three oil pipes of control wheel hub fuel feeding, pass cavity pressure oil, the pressure oil of beginning to speak with being subjected to oil pipe.

5. mid-turbine oil receptor according to claim 1 is characterized in that, is provided with an oil reservoir between described floating ring and the main shaft.

6. mid-turbine oil receptor according to claim 1 is characterized in that, between described floating ring and the floating ring seat oil reservoir is arranged.

7. mid-turbine oil receptor according to claim 1 and 2 is characterized in that, described shell is provided with leak oil line (9).

8. according to claim 1 or 5 or 6 described mid-turbine oil receptors, it is characterized in that, be provided with oil leaking hole between described flinger ring and the oil-collecting seat, the sidewall of oil leaking hole UNICOM oil pocket and floating ring seat.

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