CN210460769U

CN210460769U - Novel oil cooler for bearing bush of steam turbine

Info

Publication number: CN210460769U
Application number: CN201921114150.XU
Authority: CN
Inventors: 魏晋
Original assignee: Inner Mongolia Jinghai Coal Gangue Power Generation Co Ltd
Current assignee: Inner Mongolia Jinghai Coal Gangue Power Generation Co Ltd
Priority date: 2019-07-16
Filing date: 2019-07-16
Publication date: 2020-05-05
Anticipated expiration: 2029-07-16

Abstract

The utility model discloses a novel oil cooler for steam turbine bearing bush, it includes the vertical annular oil pocket that sets up, the upper end and the lower extreme of annular oil pocket are fixedly connected with circular oil pocket upper end cover and oil pocket lower end cover respectively, the level is provided with out oil ring chamber in the oil pocket upper end cover, the level is provided with the oil feed ring chamber in the oil pocket lower end cover, the upper end and the ring chamber of producing oil of annular oil pocket are linked together, the lower extreme and the oil feed ring chamber of annular oil pocket are linked together, it is linked together with the main pipeline of producing oil outward to produce oil ring chamber, the oil feed ring chamber is linked together with the main pipeline of oil feed, it is provided with a plurality of cooling water pipes that are the shape of inversion U; the utility model has the advantages that: the utility model discloses simple structure, through the water-cooling pipeline who sets up annular oil pocket and U-shaped, the inner wall and the outer wall of annular oil pocket all paste tight the U-shaped water-cooling pipeline of being covered with, improve the contact surface of heat transfer to improve heat transfer efficiency.

Description

Novel oil cooler for bearing bush of steam turbine

The technical field is as follows:

the utility model relates to a power plant technical field especially relates to a novel oil cooler for steam turbine axle bush.

Background art:

in the technical field of thermal power generation, because the rotating speed of a steam turbine can reach more than 3000 revolutions per minute and generate a large amount of heat, the cooling of a bearing bush of the steam turbine is very important, the cooling of the bearing bush is generally realized by using an oil cooler, but the cooling effect of the existing oil cooler is not ideal; the main body is as follows: the contact surface between the water cooling pipeline and the oil pipeline is small, the heat transfer efficiency is not high, the utilization rate of the water cooling pipeline is low, and the cooling effect is not good enough.

The utility model has the following contents:

an object of the utility model is to provide a novel oil cooler for steam turbine axle bush.

The content of the utility model is as follows: a novel oil cooler for a steam turbine bearing bush comprises an annular oil cavity which is vertically arranged, wherein the upper end and the lower end of the annular oil cavity are fixedly connected with an upper end cover of the circular oil cavity and a lower end cover of the oil cavity respectively, an oil outlet ring cavity is horizontally arranged in the upper end cover of the oil cavity, an oil inlet ring cavity is horizontally arranged in the lower end cover of the oil cavity, the upper end of the annular oil cavity is communicated with the oil outlet ring cavity, the lower end of the annular oil cavity is communicated with the oil inlet ring cavity, the oil outlet ring cavity is outwards communicated with an oil outlet main pipeline, the oil inlet ring cavity is communicated with an oil inlet main pipeline, a plurality of cooling water pipes which are in an inverted U shape are uniformly distributed along the circumferential direction of the annular oil cavity, two linear pipe sections of the cooling water pipes are tightly attached to the inner wall and the outer wall of the annular oil cavity respectively, and the cooling water pipes are fixedly inserted, the cooling water pipe assembly is characterized by further comprising an outer barrel, the outer barrel is sleeved on the outer side of the annular oil cavity in a concentric mode, the upper end and the lower end of the outer barrel are fixedly connected with an outer barrel upper end cover and an outer barrel lower end cover respectively, a U-shaped pipe section of the cooling water pipe is fixedly inserted on the outer barrel upper end cover in a penetrating mode, a water inlet annular cavity and a water outlet annular cavity are horizontally arranged on the outer barrel lower end cover, the diameter of the water inlet annular cavity is smaller than that of the water outlet annular cavity, the water inlet annular cavity is communicated with one end of the inner side of all the cooling water pipe, the water outlet annular cavity is communicated with one end of the outer side of all the cooling water pipe, the water outlet annular cavity is communicated with a water outlet main pipeline, and the water.

The utility model has the advantages that: the utility model discloses simple structure, through the water-cooling pipeline who sets up annular oil pocket and U-shaped, the inner wall and the outer wall of annular oil pocket all paste tight the U-shaped water-cooling pipeline of being covered with, improve the contact surface of heat transfer to improve heat transfer efficiency.

Description of the drawings:

fig. 1 is a schematic view of the overall structure of the present invention;

FIG. 2 is a schematic view of the internal structure of the present invention;

fig. 3 is a top view of the present invention;

FIG. 4 is a cross-sectional view taken along A-A of FIG. 3;

in the figure, an annular oil cavity 1, an oil cavity upper end cover 2, an oil cavity lower end cover 3, an oil outlet ring cavity 4, an oil inlet ring cavity 5, an oil outlet main pipeline 6, an oil inlet main pipeline 7, a cooling water pipe 8, an outer barrel 9, an outer barrel upper end cover 10, an outer barrel lower end cover 11, a water inlet ring cavity 12, a water outlet ring cavity 13, a water outlet main pipeline 14 and a water inlet main pipeline 15.

The specific implementation mode is as follows:

as shown in fig. 1 to 4, a novel oil cooler for a steam turbine bearing shell is characterized in that: the oil cooling device comprises an annular oil cavity 1 which is vertically arranged, wherein the upper end and the lower end of the annular oil cavity 1 are respectively and fixedly connected with a circular oil cavity upper end cover 2 and an oil cavity lower end cover 3, an oil outlet ring cavity 4 is horizontally arranged in the oil cavity upper end cover 2, an oil inlet ring cavity 5 is horizontally arranged in the oil cavity lower end cover 3, the upper end of the annular oil cavity 1 is communicated with the oil outlet ring cavity 4, the lower end of the annular oil cavity 1 is communicated with the oil inlet ring cavity 5, the oil outlet ring cavity 4 is outwards communicated with an oil outlet main pipeline 6, the oil inlet ring cavity 5 is communicated with an oil inlet main pipeline 7, a plurality of inverted U-shaped cooling water pipes 8 are uniformly distributed along the circumferential direction of the annular oil cavity 1, two linear pipe sections of the cooling water pipes 8 are respectively tightly attached to the inner wall and the outer wall of the annular oil cavity 1, and the cooling water pipes 8 are fixedly inserted on the upper end cover 2 and the oil cavity, it still includes urceolus 9, the concentric suit of urceolus 9 the outside of annular oil pocket 1, the upper end and the lower extreme of urceolus 9 are fixedly connected with urceolus upper end cover 10 and urceolus lower end cover 11 respectively, the fixed grafting that the U-shaped pipe section of condenser tube 8 runs through is in on the urceolus upper end cover 10 urceolus lower end cover 11 level is provided with into water ring chamber 12 and play water ring chamber 13, the diameter of intaking water ring chamber 12 is less than go out the diameter of water ring chamber 13, intake water ring chamber 12 and whole the inboard one end of condenser tube 8 is linked together, it is all to go out water ring chamber 13 the outside one end of condenser tube 8 is linked together, it is linked together with water main line 14 to go out water ring chamber 13, it is linked together with water main line 15 to intake water ring chamber 12.

The working principle is as follows: when the oil-out device works, lubricating oil sequentially passes through the oil inlet main pipeline 7, the oil inlet annular cavity 5, the annular oil cavity 1 and the oil outlet annular cavity 4 and is finally discharged through the oil outlet main pipeline 6; the cooling water passes through the water inlet main pipeline 15, the water inlet annular cavity 12 and the water outlet annular cavity 13 in sequence and is finally discharged through the water outlet main pipeline 14, in the process, the annular oil cavity 1 is completely surrounded by the U-shaped cooling water pipe 8, the contact area is increased, and the heat transfer efficiency is improved.

The above description is only a preferred embodiment of the present invention, and should not be taken as limiting the invention, and any modifications, equivalent replacements, improvements, etc. made within the spirit and principle of the present invention should be included in the protection scope of the present invention.

Claims

1. The utility model provides a novel oil cooler for steam turbine axle bush which characterized in that: the oil cooling device comprises an annular oil cavity (1) which is vertically arranged, wherein the upper end and the lower end of the annular oil cavity (1) are fixedly connected with a circular oil cavity upper end cover (2) and an oil cavity lower end cover (3) respectively, an oil outlet annular cavity (4) is horizontally arranged in the oil cavity upper end cover (2), an oil inlet annular cavity (5) is horizontally arranged in the oil cavity lower end cover (3), the upper end of the annular oil cavity (1) is communicated with the oil outlet annular cavity (4), the lower end of the annular oil cavity (1) is communicated with the oil inlet annular cavity (5), the oil outlet annular cavity (4) is outwards communicated with an oil outlet main pipeline (6), the oil inlet annular cavity (5) is communicated with an oil inlet main pipeline (7), a plurality of cooling water pipes (8) which are in an inverted U shape are uniformly distributed along the circumferential direction of the annular oil cavity (1), and two straight pipe sections of the cooling water pipes (8) are tightly attached to the inner wall and the outer wall of the annular oil cavity, the cooling water pipe (8) is fixedly inserted on the oil cavity upper end cover (2) and the oil cavity lower end cover (3) in a penetrating manner, the cooling water pipe further comprises an outer barrel (9), the outer barrel (9) is concentrically sleeved on the outer side of the annular oil cavity (1), the upper end and the lower end of the outer barrel (9) are fixedly connected with an outer barrel upper end cover (10) and an outer barrel lower end cover (11) respectively, a U-shaped pipe section of the cooling water pipe (8) is fixedly inserted on the outer barrel upper end cover (10) in a penetrating manner, a water inlet annular cavity (12) and a water outlet annular cavity (13) are horizontally arranged on the outer barrel lower end cover (11), the diameter of the water inlet annular cavity (12) is smaller than that of the water outlet annular cavity (13), the water inlet annular cavity (12) is communicated with one end of the inner side of all the cooling water pipes (8), and the water outlet annular cavity (13) is communicated with one end of the outer side of all the cooling water pipes (8, the water outlet annular cavity (13) is communicated with a water outlet main pipeline (14), and the water inlet annular cavity (12) is communicated with a water inlet main pipeline (15).