CN215807810U

CN215807810U - Bearing oil groove oil mist collecting device of water turbine generator

Info

Publication number: CN215807810U
Application number: CN202120308706.XU
Authority: CN
Inventors: 黄德建
Original assignee: Sichuan Water Conservancy Vocational College
Current assignee: Sichuan Water Conservancy Vocational College
Priority date: 2021-02-03
Filing date: 2021-02-03
Publication date: 2022-02-11
Anticipated expiration: 2031-02-03

Abstract

The utility model discloses a hydro-generator bearing oil groove oil mist collecting device, which comprises an air inlet pipe, a first condenser and a first collecting pipe, the connecting pipe, the second condenser, second collecting pipe and blast pipe, the intake pipe communicates with the apron on the bearing oil groove, be equipped with first air inlet and first exhaust port on the first condenser, intake pipe and first air inlet intercommunication, first collecting pipe and first exhaust port intercommunication, the below of first collecting pipe is equipped with first collection subassembly, the connecting pipe sets up the top at first collection subassembly, the one end of connecting pipe and the pipe wall intercommunication of first collecting pipe, be equipped with second air inlet and second gas vent on the second condenser, the other end and the second air inlet intercommunication of connecting pipe, second collecting pipe and second gas vent intercommunication, the below of second collecting pipe is equipped with the second and collects the subassembly, the blast pipe set up in the second collect the subassembly the top and with the pipe wall intercommunication of second collecting pipe. The oil mist collecting device has high oil mist collecting efficiency and strong practicability.

Description

Bearing oil groove oil mist collecting device of water turbine generator

Technical Field

The utility model relates to the technical field of hydroelectric generating sets, in particular to a bearing oil groove oil mist collecting device of a hydroelectric generating set.

Background

Because make, the problem in the aspect of bearing seal after the reason in the aspect of the installation quality or operation a period, the phenomenon that the oil mist spills over can appear in the hydraulic generator bearing oil groove, the oil mist that spills over not only causes the pollution around the generator, and can influence the contact condition on generator sliding ring and carbon brush surface, when generator sliding ring and carbon brush contact not good, accidents such as spark or even ring fire can take place, and long-term oil mist is excessive, can cause the waste of turbine oil, consequently need one kind can reduce the oil mist excessive and can carry out the collection device who retrieves to the oil mist.

SUMMERY OF THE UTILITY MODEL

The utility model aims to provide a bearing oil groove oil mist collecting device of a water turbine generator, which aims to solve the problems of the background technology.

The technical scheme of the utility model is as follows:

a bearing oil sump oil mist collection device for a hydro-generator, comprising:

the air inlet pipe is communicated with a cover plate on the bearing oil groove;

the first condenser is provided with a first air inlet and a first exhaust port, and one end of the air inlet pipe, which is far away from the cover plate, is communicated with the first air inlet;

the first collecting pipe is communicated with the first exhaust port, and a first collecting assembly for collecting oil drops is arranged below the first collecting pipe;

the connecting pipe is arranged above the first collecting assembly, and one end of the connecting pipe is communicated with the pipe wall of the first collecting pipe;

a second condenser, wherein a second air inlet and a second air outlet are arranged on the second condenser, and one end of the connecting pipe, which is far away from the first collecting pipe, is communicated with the second air inlet;

the second collecting pipe is communicated with the second exhaust port, and a second collecting assembly is arranged below the second collecting pipe;

and the exhaust pipe is arranged above the second collecting assembly and is communicated with the pipe wall of the second collecting pipe.

Further, the first collection assembly includes:

the control valve is arranged on the first collecting pipe;

the observation window is arranged on the pipe wall of the first collecting pipe and is positioned above the gate valve;

the oil collecting bottle is arranged below the first collecting pipe and is detachably connected with the first collecting pipe.

Furthermore, the detachable connection mode is threaded connection, an external thread is arranged on the bottle opening of the oil collecting bottle, and an internal thread matched with the external thread is arranged at the lower port of the first collecting pipe.

Further, the second collecting assembly has the same structure as the first collecting assembly.

Furthermore, an air pressure balance assembly is arranged on the air inlet pipe.

Furthermore, the air pressure balancing assembly comprises a first safety valve and a second safety valve which are respectively arranged on two sides of the pipe wall of one end, close to the cover plate, of the air inlet pipe.

Compared with the prior art, the utility model has the beneficial effects that:

the oil mist collecting device has high oil mist collecting efficiency, the oil mist discharging amount is very small, a large amount of oil mist forms oil drops under the cooling of the two condensers and is collected and recycled by the oil collecting bottle, the two safety valves arranged on the air inlet pipe can automatically communicate the air pressure in the collecting device with the atmosphere to release the air pressure to achieve the effect of balancing the air pressure when the pipeline is blocked and the air pressure in the device is too high or too low, and meanwhile, if the oil grooves of a plurality of generators have the phenomenon of oil mist overflowing, the oil mist can be connected to the first condenser and the second condenser together through the pipelines to collect the oil mist.

Drawings

FIG. 1 is a schematic structural diagram of the present invention.

Detailed Description

The following detailed description of embodiments of the utility model refers to the accompanying drawings.

In the description of the present invention, it is to be understood that the terms "center", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc., indicate orientations or positional relationships based on those shown in the drawings, and are only for convenience of description and simplicity of description, and do not indicate or imply that the referenced components or elements must have particular orientations, be constructed in particular orientations, and be operated, and thus, are not to be construed as limiting the present invention.

The terms "first", "second" and "first" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature; in the description of the present invention, "a plurality" means two or more unless otherwise specified.

Examples

As shown in fig. 1, the oil mist collecting device of the bearing oil groove of the water turbine generator comprises an air inlet pipe 1, a first condenser 2, a first collecting pipe 3, a connecting pipe 7, a second condenser 8, a second collecting pipe 9 and an air outlet pipe 10; a first air inlet and a first exhaust port are arranged on the first condenser 2, and one end of the air inlet pipe 1, which is far away from the cover plate, is communicated with the first air inlet; the top end of the first collecting pipe 3 is communicated with the first exhaust port, and a first collecting assembly for collecting oil drops is arranged below the first collecting pipe 3; the connecting pipe 7 is arranged above the first collecting assembly, and one end of the connecting pipe 7 is communicated with the pipe wall of the first collecting pipe 3; a second air inlet and a second air outlet are formed in the second condenser 8, and one end, far away from the first collecting pipe 3, of the connecting pipe 7 is communicated with the second air inlet; the second collecting pipe 9 is communicated with the second exhaust port, and a second collecting component is arranged below the second collecting pipe 9; the exhaust pipe 10 is arranged above the second collecting assembly and is communicated with the pipe wall of the second collecting pipe 9.

Preferably, as shown in fig. 1, the first collection assembly comprises a gate valve 5, a viewing window 4 and a collection bottle 6; the gate valve 5 is arranged on the first collecting pipe 3; the observation window 4 is arranged on the pipe wall of the first collecting pipe 3 and is positioned above the gate valve 5; the oil collecting bottle 6 is arranged below the first collecting pipe 3 and is detachably connected with the first collecting pipe 3.

Specifically, the detachable connection mode is a threaded connection mode, an external thread is arranged on the bottle opening of the oil collecting bottle 6, and an internal thread matched with the external thread is arranged on the lower port of the first collecting pipe 3.

Preferably, the second collecting assembly has the same structure as the first collecting assembly.

Preferably, in order to balance the air pressure inside the device, an air pressure balancing component is arranged on the air inlet pipe 1.

Specifically, as shown in fig. 1, the air pressure balancing assembly includes a first safety valve 101 and a second safety valve 102, the first safety valve 101 and the second safety valve 102 are respectively disposed on two sides of a pipe wall of the air inlet pipe 1 near one end of the cover plate and a pipe wall of one end of the first condenser 2, wherein the first safety valve 101 is a vacuum negative pressure safety valve with model number YFA72W-10P/10R, and when the negative pressure in the container exceeds an allowable value, the valve is automatically opened to suck air; when the negative pressure in the container reaches an allowable value, the valve is automatically closed so as to protect equipment and a system, the second safety valve 102 selects an overpressure safety valve of type A41Y-100 and 320, when the air pressure in the container is increased to exceed the allowable value, the valve is automatically opened and carries out pressure relief, and after the pressure relief, the valve can be automatically closed without manual reset; therefore, when the internal temperature of the bearing oil groove rises to cause the air pressure to increase, the overpressure safety valve can be communicated with the atmosphere to release to maintain the air pressure balance, and when the internal temperature of the bearing oil groove falls to cause the air pressure to decrease, the vacuum negative pressure safety valve can be communicated with the atmosphere to release to maintain the internal pressure to be the same as the atmospheric pressure, so that the purpose of balancing the air pressure is achieved.

When in use, when oil mist enters the air inlet pipe 1 from the oil mist on the oil groove cover plate of the bearing of the water turbine generator, the oil mist is cooled by the first condenser 2, a large amount of oil drops are formed after the oil mist is cooled and fall on the gate valve arranged on the first collecting pipe 3, the oil level of the oil drops stored in the first collecting pipe 3 is observed through the observation window, when the oil level is high, the gate valve 5 on the first collecting pipe 3 is opened, oil drops stored in the first collecting pipe 3 are collected in the oil collecting bottle 6, a small amount of oil mist can continuously flow into the second condenser 8 through the connecting pipe, the oil drops formed after being cooled again fall onto the gate valve 5 arranged on the second collecting pipe 9, the oil level of the oil drops stored in the second collecting pipe 9 is observed through the observation window, when the oil level is high, the gate valve on the second collecting pipe 9 is opened, and oil drops stored in the second collecting pipe 9 are collected in the oil collecting bottle 6. If the oil tanks of several generators have oil mist overflow phenomenon, the oil mist overflow phenomenon can be connected to the first condenser 2 and the second condenser 8 together through pipelines, but the pipelines connected to the oil mist discharge holes of the upper cover plate of the bearing oil tank of each generator must be provided with pressure reducing components.

The above disclosure is only a preferred embodiment of the present invention, but the present invention is not limited thereto, and any variations that can be made by those skilled in the art are intended to fall within the scope of the present invention.

Claims

1. The utility model provides a hydraulic generator bearing oil groove oil mist collection device which characterized in that includes:

the air inlet pipe (1) is communicated with a cover plate on the bearing oil groove;

the air inlet pipe (1) is communicated with the first air inlet at one end far away from the cover plate;

the first collecting pipe (3) is communicated with the first exhaust port, and a first collecting assembly for collecting oil drops is arranged below the first collecting pipe (3);

the connecting pipe (7) is arranged above the first collecting assembly, and one end of the connecting pipe (7) is communicated with the pipe wall of the first collecting pipe (3);

a second air inlet and a second air outlet are formed in the second condenser (8), and one end, far away from the first collecting pipe (3), of the connecting pipe (7) is communicated with the second air inlet;

the second collecting pipe (9) is communicated with the second exhaust port, and a second collecting component is arranged below the second collecting pipe (9);

and the exhaust pipe (10) is arranged above the second collecting assembly and is communicated with the pipe wall of the second collecting pipe (9).

2. A turbine generator bearing sump oil mist collection apparatus as set forth in claim 1 wherein said first collection assembly includes:

a gate valve (5) arranged on the first collecting pipe (3);

the observation window (4) is arranged on the pipe wall of the first collecting pipe (3) and is positioned above the gate valve (5);

the oil collecting bottle (6) is arranged below the first collecting pipe (3) and is detachably connected with the first collecting pipe (3).

3. The oil mist collecting device for the bearing oil groove of the water turbine generator as claimed in claim 2, wherein the detachable connection is a threaded connection, the mouth of the oil collecting bottle (6) is provided with an external thread, and the lower port of the first collecting pipe (3) is provided with an internal thread matched with the external thread.

4. A turbine generator bearing sump oil mist collection apparatus as claimed in claim 3 wherein said second collection assembly is of the same construction as said first collection assembly.

5. A bearing oil groove oil mist collecting device of a water turbine generator according to claim 1, characterized in that the air inlet pipe (1) is provided with an air pressure balancing component.

6. A bearing oil groove oil mist collecting device for a water turbine generator according to claim 5, characterized in that the air pressure balancing assembly comprises a first safety valve (101) and a second safety valve (102), the first safety valve (101) and the second safety valve (102) are respectively arranged on two sides of the pipe wall of the inlet pipe (1) near one end of the cover plate.