CN218117947U

CN218117947U - External cooling device for water guide bearing of water turbine

Info

Publication number: CN218117947U
Application number: CN202221666568.3U
Authority: CN
Inventors: 高永超; 陈永军; 韩方波; 杨选银; 林伟
Original assignee: Huaneng Xinjiang River Hydropower Tuoshengan Amam Su Branch
Current assignee: Huaneng Xinjiang River Hydropower Tuoshengan Amam Su Branch
Priority date: 2022-06-30
Filing date: 2022-06-30
Publication date: 2022-12-23
Anticipated expiration: 2032-06-30

Abstract

The water turbine water guide bearing is an external cooling device. However, once the temperature of the bearing bush rises too high, not only can the potential safety hazard of production be buried, but also the service life of the water turbine can be shortened, and unnecessary economic loss is brought to enterprises. The utility model discloses the constitution includes: the water turbine water guide bearing comprises a water turbine water guide bearing (1), wherein two oil coolers (2) are fixed on an end cover of the water turbine water guide bearing, a water inlet of each oil cooler is communicated with a water inlet pipe (3), two groups of water inlet pipes are communicated through a connecting hose (4), and the connecting hose is communicated to a main inlet pipe (5); the water outlet of each oil cooler is communicated with a water return pipe (10), the two groups of water return pipes are communicated through connecting hoses, and the connecting hoses are communicated to a water outlet pipe (11). The utility model is used for external cooling of hydraulic turbine water wheel bearing.

Description

External cooling device for water turbine guide bearing

The technical field is as follows:

the utility model relates to an external cooling device of hydraulic turbine water guide bearing.

Background art:

the hydraulic turbine is because receiving the influence of environment, operating mode and discharge, and the axle bush receives the condition that the temperature rise can certainly appear in the friction in the work, and the axle bush temperature rise in normal threshold value generally can not bring the influence to mixed flow turbine's work efficiency and safety, but in case the axle bush temperature rise is too high, not only can bury down production potential safety hazard, still can lead to the life of the hydraulic turbine to shorten, brings unnecessary economic loss for the enterprise.

The utility model has the following contents:

the utility model aims at solving the problem that exists, providing an external cooling device of hydraulic turbine guide bearing.

The above purpose is realized by the following technical scheme:

the utility model provides an external cooling device of hydraulic turbine water wheel bearing which constitutes includes: the water turbine water guide bearing is characterized in that two oil coolers are fixed on an end cover of the water turbine water guide bearing, a water inlet of each oil cooler is communicated with a water inlet pipe, two groups of water inlet pipes are communicated through a connecting hose, and the connecting hose is communicated to a main inlet pipe;

the water outlet of each oil cooler is communicated with a water return pipe, the two groups of water return pipes are communicated through connecting hoses, and the connecting hoses are communicated to a water outlet pipe.

The water turbine water guide bearing external cooling device is characterized in that a pressure gauge and a valve are mounted on the water outlet pipe and the main inlet pipe.

The external cooling device for the water turbine guide bearing is characterized in that oil inlets of the two oil coolers are communicated through an oil inlet pipe, and an oil outlet of each oil cooler is communicated with an oil return pipe.

Has the advantages that:

1. the utility model discloses two external oil coolers of hydraulic turbine water guide bearing can carry out forced cooling to bearing lubricating oil, improves its cooling effect.

2. The utility model discloses a be connected through coupling hose between inlet tube and the total inlet tube, be connected through coupling hose between wet return and the outlet pipe, coupling hose is rubber high-pressure hose connection, and the rigid connection who significantly reduces connects, has reduced the leak source simultaneously, and it is more convenient to overhaul and maintain.

Description of the drawings:

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

in the figure: 1. a water guide bearing of the water cooling machine; 2. an oil cooler; 3. a water inlet pipe; 4. a connecting hose; 5. a main inlet pipe; 6. a pressure gauge; 7. a valve; 8. an oil inlet pipe; 9. an oil return pipe; 10. a water return pipe; 11. and (5) discharging a water pipe.

The specific implementation mode is as follows:

as shown in fig. 1, the device comprises a water turbine water guide bearing 1, two oil coolers 2 are fixed on an end cover of the water turbine water guide bearing, the oil coolers are the existing oil coolers on the market, each oil cooler has a water inlet communicated with a water inlet pipe 3, the two groups of water inlet pipes are communicated through a connecting hose 4, the connecting hose is connected through a rubber high-pressure hose, rigid connecting joints are greatly reduced, leakage points are reduced, the maintenance is more convenient, the connecting hose is communicated to a main inlet pipe 5, and a pressure gauge 6 and a valve 7 are installed on the main inlet pipe.

The water outlet of each oil cooler is communicated with a water return pipe 10, the two groups of water return pipes are communicated through connecting hoses, the connecting hoses are communicated to a water outlet pipe 11, and a pressure gauge and a valve are also installed on the water outlet pipe.

The oil inlets of the two oil coolers are communicated through an oil inlet pipe 8, the oil inlet pipe is a three-way pipe, one pipe is inserted into an end cover of a water turbine water guide bearing, the other two pipes are respectively communicated with the oil inlets of the two oil coolers, an oil outlet of each oil cooler is communicated with an oil return pipe 9, lubricating oil of the water turbine water guide bearing is respectively introduced into the two oil coolers after being mixed with the oil in the oil inlet pipe, the lubricating oil returns into the water turbine water guide bearing through the heat exchange of cooling water in the oil coolers, the cooling water enters from a main inlet pipe, enters into a water inlet pipe through a connecting hose, then enters into each oil cooler to exchange heat with the lubricating oil, the lubricating oil is cooled, and the cooling water after heat exchange is discharged through a water return pipe and discharged into the connecting hose through a water outlet pipe.

Claims

1. The utility model provides an external cooling device of hydraulic turbine water wheel bearing which constitutes includes: water turbine water guide bearing, characterized by: two oil coolers are fixed on an end cover of the water turbine guide bearing, a water inlet of each oil cooler is communicated with a water inlet pipe, two groups of water inlet pipes are communicated through a connecting hose, and the connecting hose is communicated to a main inlet pipe;

2. The external cooling device for the turbine guide bearing according to claim 1, wherein: the water outlet pipe and the main inlet pipe are both provided with a pressure gauge and a valve.

3. The external cooling device for the turbine guide bearing according to claim 2, wherein: the oil inlets of the two oil coolers are communicated through an oil inlet pipe, and the oil outlet of each oil cooler is communicated with an oil return pipe.