Guide bearing box for air preheater

Abstract

The utility model discloses a guide bearing box for an air preheater, which comprises a bearing box body, a rotating shaft, a guide bearing, a cooling water chamber, a communicating pipe and a glass pipe, a lubricating oil chamber is arranged in the middle of the bearing box body, and the guide bearing and the rotating shaft are arranged in the lubricating oil chamber. The outer wall of the guide bearing abuts against the inner wall of the lubricating oil chamber, the inner wall of the guide bearing abuts against the outer wall of the rotating shaft, the cooling water chamber is arranged on the periphery of the lubricating oil chamber in a surrounding mode, the glass tube is vertically arranged outside the bearing box body, one end of the communicating tube communicates with the bottom of the lubricating oil chamber, and the other end of the communicating tube communicates with the cooling water chamber. And the other end of the communicating pipe is communicated with the bottom of the glass pipe. The technical scheme is used for solving the problems that leakage hidden danger exists in an existing air preheater water chamber, and oil level information cannot be mastered in real time.

Description

TECHNICAL FIELD

[0001] The utility model belongs to air preheater equipment technical field, concretely relates to a kind of air preheater is with guide bearing box. BACKGROUND

[0002] Air preheater is with guide bearing box generally need external cooling water to carry out certain degree cooling of lubricating oil inside guide bearing box, to ensure the safe, stable operation of guide bearing and each flexible seal. In order to improve cooling effect, generally, 360 ° protruding 6mm, Q235B material internal water chamber is additionally arranged in guide bearing box, limited by welding process, welding quality and cooling water quality and other factors, the position of the angle weld of protruding water chamber inside guide bearing box is prone to frequent perforation leakage, which causes great security risk to the safe operation of guide bearing;The oil level of general guide bearing box is measured by oil mark scale, and the oil stain is prone to dripping to the high temperature area of air preheater during extraction and insertion, forming a fire hazard. SUMMARY

[0003] In view of the above technical problems, the utility model provides a kind of air preheater is with guide bearing box to solve the problem that the existing air preheater water chamber has leakage risk and cannot be real-time oil level information, the utility model patent designs a kind of air preheater is with guide bearing box, can effectively solve the risk of lubricating oil of guide bearing box water and optimize air preheater guide bearing box oil level gauge structure form, further improve the safety and reliability of air preheater guide bearing box operation.

[0004] The utility model discloses a kind of air preheater is with guide bearing box, including bearing box, shaft, guide bearing, cooling water chamber, communicating pipe and glass tube, the middle part of the bearing box is provided with lubricating oil room, the guide bearing and the shaft are set in the lubricating oil room, and the outer wall of the guide bearing abuts the inner wall of the lubricating oil room, the inner wall of the guide bearing abuts the outer wall of the shaft, the cooling water chamber is around setting in the outer periphery of the lubricating oil room, the glass tube is vertically arranged in the outside of the bearing box, one end of the communicating pipe is connected with the bottom of the lubricating oil room, the other end of the communicating pipe is connected with the bottom of the glass tube.

[0005] Further, the cooling water chamber is provided with a water inlet and a water outlet.

[0006] Further, the bottom of the glass tube is provided with an oil inlet and outlet valve.

[0007] Further, the middle part of the lubricating oil room is provided with a rotating drum, and the shaft is rotatably sleeved on the outer periphery of the rotating drum.

[0008] Further, the top of the glass tube is provided with a waterproof air permeable device.

[0009] The air preheater guide bearing box sets the cooling water chamber at the outer periphery of the lubricating oil chamber instead of inside the lubricating oil chamber, can avoid the contact between the weld formed in the welding process of the cooling water chamber and the lubricating oil to the greatest extent, avoid the influence of the leakage of the cooling water chamber at the weld position on the lubricating oil, and can realize real-time understanding of the lubricating oil liquid level in the lubricating oil chamber through the glass tube, timely supplement of the lubricating oil, and avoidance of the problem of high bearing temperature caused by too low lubricating oil liquid level. BRIEF DESCRIPTION OF DRAWINGS

[0010] In order to more clearly illustrate the technical solutions in the embodiments of the present application or the prior art, the following will briefly introduce the drawings needed to be used in the embodiments or prior art description. Obviously, the drawings in the following description are only some embodiments of the present application, and other drawings can be obtained by those skilled in the art without creative labor on the basis of these drawings.

[0011] Figure 1 It is a structural schematic view of an air preheater guide bearing box. DETAILED DESCRIPTION

[0012] The utility model discloses an air preheater guide bearing box, can effectively solve the hidden danger of guide bearing box lubricating oil water and optimize air preheater guide bearing box oil level meter structure form, further improve the safety and reliability of air preheater guide bearing box operation.

[0013] The technical solutions in the present application will be described clearly and completely in combination with the drawings in the present application. Obviously, the described is only some embodiments of the present application, not all embodiments. Based on the embodiments in the present application, all other embodiments obtained by those skilled in the art without creative labor belong to the protection scope of the present application.

[0014] Referring to Figure 1The utility model discloses a kind of guiding bearing boxes for air preheater, including bearing box 1, rotating shaft 9, guiding bearing 2, cooling water chamber 3, communicating pipe 6 and glass tube 8, the middle part of bearing box 1 is provided with lubricating oil chamber, the guiding bearing 2 and the rotating shaft 9 are arranged in the lubricating oil chamber, and the outer wall of the guiding bearing 2 abuts the inner wall of the lubricating oil chamber, the inner wall of the guiding bearing 2 abuts the outer wall of the rotating shaft 9, the cooling water chamber 3 is peripherally arranged in the lubricating oil chamber, the glass tube 8 is vertically arranged in the outside of bearing box 1, one end of the communicating pipe 6 communicates the bottom of the lubricating oil chamber, the other end of the communicating pipe 6 communicates the bottom of the glass tube 8.

[0015] The cooling water chamber 3 is provided with a water inlet and a water outlet.

[0016] The bottom of the glass tube 8 is provided with an oil inlet and outlet valve 7.

[0017] The middle part of the lubricating oil chamber is provided with a rotating drum 5, and the rotating shaft 9 is rotatably sleeved on the outer periphery of the rotating drum 5.

[0018] The top of the glass tube 8 is provided with a waterproof and breathable device.

[0019] The guiding bearing box 2 for air preheater sets the cooling water chamber 3 on the outer periphery of the lubricating oil chamber instead of setting it inside the lubricating oil chamber, which can greatly avoid the contact between the weld formed during the welding process of the cooling water chamber 3 and the lubricating oil, avoid the influence of the leakage of the cooling water chamber 3 at the weld position on the lubricating oil, and at the same time, through the glass tube 8, the lubricating oil level inside the lubricating oil chamber can be known in real time, the lubricating oil can be supplemented in time, and the problem of high bearing temperature caused by too low lubricating oil level can be avoided.

[0020] The above content is a further detailed description of the utility model in combination with specific preferred embodiments, and cannot be determined that the specific implementation of the utility model is limited to these descriptions. For ordinary skilled persons in the technical field to which the utility model belongs, without departing from the concept of the utility model, a number of simple deductions or substitutions can be made, which should be regarded as belonging to the protection scope of the utility model.

Claims

1. A guide bearing box for an air preheater, characterized by, The bearing box, the rotating shaft, the guide bearing, the cooling water chamber, the communication pipe and the glass tube, the middle part of the bearing box is provided with the lubricating oil chamber, the guide bearing and the rotating shaft are arranged in the lubricating oil chamber, the outer wall of the guide bearing abuts the inner wall of the lubricating oil chamber, the inner wall of the guide bearing abuts the outer wall of the rotating shaft, the cooling water chamber is arranged around the outer periphery of the lubricating oil chamber, the glass tube is vertically arranged outside the bearing box, one end of the communication pipe communicates with the bottom of the lubricating oil chamber, the other end of the communication pipe communicates with the bottom of the glass tube.

2. A guide bearing box for an air preheater according to claim 1, characterized in that, The cooling water chamber is provided with a water inlet and a water outlet.

3. The guide bearing box for an air preheater according to claim 1, characterized in that, The bottom of the glass tube is provided with an oil inlet and outlet valve.

4. The guide bearing box for an air preheater according to claim 1, wherein The middle part of the lubricating oil chamber is provided with a rotating drum, and the rotating shaft is rotatably sleeved on the outer periphery of the rotating drum.

5. The guide bearing box for an air preheater according to claim 1, wherein The top of the glass tube is provided with a waterproof air permeable device.

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