A turbine generator bearing bush breathing hole oil gas leakage collection device

By designing an oil and gas collection device, the problem of carbon brush pollution from turbine generator bearing exhaust was solved, achieving oil and gas collection and condensation, and improving the practicality and adaptability of the device.

CN224315049UActive Publication Date: 2026-06-02CHINA PETROCHEMICAL INC CORP CANGZHOU BRANCH C

Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
CHINA PETROCHEMICAL INC CORP CANGZHOU BRANCH C
Filing Date
2025-08-25
Publication Date
2026-06-02

AI Technical Summary

Technical Problem

The existing exhaust structure of the turbine generator bearings causes oil to drift towards the carbon brushes, contaminating them, affecting normal operation, and making cleaning difficult.

Method used

Design a device that includes an oil and gas collection component, which is connected to the exhaust port on the top of the bearing housing via a threaded connection to collect and condense oil and gas, thus preventing contamination of the carbon brush.

Benefits of technology

It achieves effective collection and condensation of oil and gas, reduces oil and gas emissions and waste, improves the practicality of the device, and adapts to different exhaust height requirements.

✦ Generated by Eureka AI based on patent content.

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Patent Text Reader

Abstract

The utility model discloses a steam turbine generator bearing bush breathing hole leakage oil gas collection device belongs to steam turbine generator technical field, including oil gas collection device, the oil gas collection device top is provided with a connecting piece, the oil gas collection device bottom is provided with connecting piece no.
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Description

Technical Field

[0001] This utility model specifically relates to a device for collecting leaked oil and gas from the breather hole of a steam turbine generator bearing, belonging to the technical field of steam turbine generators. Background Technology

[0002] The side of the steam turbine generator is connected to the bearing by carbon brushes. During the operation of the bearing, gas is generated inside, so it needs to be vented through the exhaust port on the top of the bearing shell. However, the conventional bearing structure has an exhaust component directly installed at the bearing outlet by threads. Its appearance is similar to a bolt, but it has an exhaust port inside.

[0003] However, because the exhaust component is located very close to the carbon brush, the oil carried in the exhaust gas will drift onto the carbon brush. When the oil combines with dust in the air, it will turn into oil stains, which will contaminate the carbon brush and affect its normal operation. Cleaning the oil stains on the carbon brush is extremely troublesome and will cause great inconvenience to the work.

[0004] Therefore, it is necessary to develop a device for collecting leaked oil and gas from the breather hole of a steam turbine generator bearing, so as to achieve oil and gas collection and reduce oil and gas discharge and waste. Utility Model Content

[0005] The purpose of this utility model is to address the shortcomings of the existing technology by providing a steam turbine generator bearing breather hole leakage oil and gas collection device to achieve the purpose of collecting discharged oil and gas.

[0006] A device for collecting leaked oil and gas from the breather hole of a steam turbine generator bearing includes an oil and gas collection component. A first connector is provided at the top of the oil and gas collection component, and a second connector is provided at the bottom of the oil and gas collection component. The second connector is used to connect to the exhaust port at the top of the engine bearing housing. An exhaust component is provided on the first connector, and a breather hole is provided inside the exhaust component.

[0007] Preferably, the oil and gas collection component is a hollow pipe with an extendable length.

[0008] Preferably, the first connector is threaded to the top of the oil and gas collecting component.

[0009] Preferably, the second connector is threaded to the bottom end of the oil and gas collection component.

[0010] Preferably, the diameter of the second connector is larger than the diameter of the exhaust port at the top of the engine bearing housing. By increasing the contact area between the second connector and the top of the bearing housing, the stability of the connection is improved and the shaking of the oil and gas collection component is reduced.

[0011] Preferably, the oil and gas collection component is threaded with a positioning bolt, and the positioning bolt is used to position the length of the oil and gas collection component.

[0012] Preferably, the oil and gas collecting component is provided with a sealing ring inside.

[0013] Beneficial effects:

[0014] This invention facilitates the collection of oil and gas leaking from the breather hole of a turbine generator bearing through the installation of an oil and gas collection component. A second connecting component is threaded to the bearing exhaust port, thus supporting the oil and gas collection component. During bearing movement, the transmitted gas flows into the oil and gas collection component, which is a long tube. The gas flow into the collection component then discharges the generated gas. The oil and gas collection component increases the height of gas discharge, preventing oil and gas from contaminating the brushes. As the oil and gas rises along the long tube, it cools and re-condenses into oil, falling back into the bearing, thus achieving oil and gas collection. This reduces oil and gas discharge and waste, improving the practicality of the oil and gas collection component for turbine generator bearing breather hole leaks. The length of the oil and gas collection component is adjustable to adapt to different exhaust height requirements. Attached Figure Description

[0015] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0016] Figure 2 This is a schematic diagram of the structure of the oil and gas collection component of this utility model;

[0017] Figure 3 This is a structural schematic diagram of connector No. 2 and connector No. 1 of this utility model.

[0018] In the diagram: 1. Oil and gas collection component; 2. Connector No. 2; 3. Connector No. 1; 4. Exhaust component; 5. Sealing ring; 6. Positioning bolt. Detailed Implementation

[0019] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0020] Please see Figure 1-3As shown, a turbine generator bearing breather leak oil and gas collection device includes an oil and gas collection component 1. A first connector 3 is provided at the top of the oil and gas collection component 1, and a second connector 2 is provided at the bottom of the oil and gas collection component 1. The second connector 2 is used to connect to the exhaust port on the top of the engine bearing housing. An exhaust component 4 is provided on the first connector 3, and a breather hole is provided inside the exhaust component 4. When using the turbine generator bearing breather leak oil and gas collection device to collect oil and gas generated during bearing operation, the second connector 2 is threadedly connected to the exhaust port of the bearing, thereby supporting the installation of the oil and gas collection component 1. This allows for the collection of oil and gas generated during bearing movement through... The exhaust port and connector 2 allow the transmitted gas to flow into the oil-gas collection component 1, which is a long tube. Connector 3 can be used to install the exhaust component 4, thereby venting the generated gas. The oil-gas collection component 1 can increase the height of the gas exhaust, preventing oil-gas from contaminating the brush. As the oil-gas rises along the long tube, it cools and re-condenses into oil, falling back into the bearing bush, thus achieving oil-gas collection, reducing oil-gas discharge and waste, and improving the practicality of the oil-gas collection device for leaking the turbine generator bearing breather hole. The length of the oil-gas collection component 1 is adjustable to adapt to different exhaust height requirements.

[0021] Furthermore, the oil and gas collection component 1 is a hollow pipe with an extendable length. The oil and gas collection component 1 consists of two hollow pipe sections, and the length of the oil and gas collection component 1 can be adjusted to adapt to different exhaust height requirements.

[0022] Furthermore, the first connector 3 is threaded to the top of the oil and gas collection component 1, and the second connector 2 is threaded to the bottom of the oil and gas collection component 1. The first connector 3 and the second connector 2 are connected to the oil and gas collection component 1 through the threaded connection.

[0023] Furthermore, the oil and gas collection component 1 is threaded with a positioning bolt 6, which is used to position the length of the oil and gas collection component 1.

[0024] Furthermore, a sealing ring 5 is provided inside the oil and gas collection component 1. When adjusting the length of the oil and gas collection component 1, the sealing ring 5 can seal the gaps connecting the oil and gas collection components 1 to prevent gas leakage.

[0025] Furthermore, the diameter of the second connector 2 is larger than the diameter of the exhaust port at the top of the engine bearing housing. By increasing the contact area between the second connector 2 and the top of the bearing housing, the stability of the connection is improved and the shaking of the oil and gas collection component 1 is reduced.

[0026] As a technical optimization of this utility model, when using the turbine generator bearing breather leakage oil and gas collection device to collect the oil and gas generated during the operation of the bearing, the second connecting piece 2 is threadedly connected to the bearing exhaust port, thereby supporting the installation of the oil and gas collection piece 1. During the movement of the bearing, the gas flow through the exhaust port and the second connecting piece 2 will enter the interior of the oil and gas collection piece 1. The oil and gas collection piece 1 can increase the height of gas discharge, avoiding oil and gas contamination of the brush. When the oil and gas rises with the long pipe and cools, it re-condenses into oil and falls back into the bearing, realizing oil and gas collection, reducing oil and gas discharge and waste, and improving the practicality of the turbine generator bearing breather leakage oil and gas collection device. The length of the oil and gas collection piece 1 is adjustable to adapt to different exhaust height requirements.

[0027] It will be apparent to those skilled in the art that this invention is not limited to the details of the exemplary embodiments described above, and that it can be implemented in other specific forms without departing from the spirit or essential characteristics of this invention. Therefore, the embodiments should be considered illustrative and non-limiting in all respects, and the scope of this invention is defined by the appended claims rather than the foregoing description. Thus, it is intended that all variations falling within the meaning and scope of equivalents of the claims be included within this invention. No reference numerals in the claims should be construed as limiting the scope of the claims.

[0028] Furthermore, it should be understood that although this specification describes embodiments, not every embodiment contains only one independent technical solution. This narrative style is merely for clarity. Those skilled in the art should consider the specification as a whole, and the technical solutions in each embodiment can also be appropriately combined to form other embodiments that can be understood by those skilled in the art.

Claims

1. A device for collecting leaked oil and gas from the breather hole of a steam turbine generator bearing, characterized in that, It includes an oil and gas collection component (1), with a first connector (3) at the top and a second connector (2) at the bottom. The second connector (2) is used to connect to the exhaust port at the top of the engine bearing housing. An exhaust component (4) is provided on the first connector (3), and a breathing hole is provided inside the exhaust component (4).

2. The steam turbine generator bearing breather leakage oil and gas collection device as described in claim 1, characterized in that: The oil and gas collection component (1) is a hollow pipe with an extendable length.

3. The steam turbine generator bearing breather hole leakage oil and gas collection device as described in claim 1, characterized in that: The No. 1 connector (3) is threadedly connected to the top of the oil and gas collection component (1).

4. The steam turbine generator bearing breather hole leakage oil and gas collection device as described in claim 1, characterized in that: The second connector (2) is threadedly connected to the bottom end of the oil and gas collection component (1).

5. The steam turbine generator bearing breather hole leakage oil and gas collection device as described in claim 1, characterized in that: The diameter of the second connector (2) is larger than the diameter of the exhaust port at the top of the engine bearing housing. By increasing the contact area between the second connector (2) and the top of the bearing housing, the stability of the connection is improved and the shaking of the oil and gas collection component (1) is reduced.

6. The steam turbine generator bearing breather hole leakage oil and gas collection device as described in claim 1, characterized in that: The oil and gas collection component (1) is threaded with a positioning bolt (6), and the positioning bolt (6) is used to position the length of the oil and gas collection component (1).

7. The steam turbine generator bearing breather hole leakage oil and gas collection device as described in claim 6, characterized in that: The oil and gas collection component (1) is equipped with a sealing ring (5).