Wear-resisting ring of impeller sealing opening

Abstract

The utility model provides an impeller sealing port wear-resisting ring which comprises a wear-resisting ring body, the wear-resisting ring body is annular, a through hole for installing a rotating shaft is formed in the middle of the wear-resisting ring body, a detection ring is arranged on the inner side wall of the wear-resisting ring body, the detection ring is fixed on the inner wall of the wear-resisting ring body, red lead powder is coated on the inner wall of the detection ring, and the inner wall of the detection ring is fixed on the inner wall of the wear-resisting ring body. The detection ring is arranged on the inner side of the wear-resistant ring body, the detection ring is firmly fixed on the inner wall of the wear-resistant ring body, the inner wall of the detection ring is coated with the red lead powder, and the red lead powder serving as a marking substance easy to observe and detect can be exposed when the wear-resistant ring is worn, so that the wear degree of the wear-resistant ring is intuitively reflected; real-time monitoring of the abrasion condition is achieved, and timeliness and accuracy of equipment maintenance are improved.

Description

TECHNICAL FIELD

[0001] The utility model relates to impeller accessory technology field especially, relate to a kind of impeller sealing mouth wear ring. BACKGROUND

[0002] In centrifugal pump, wear ring is a vital small part, it is located between pump shaft and impeller, undertakes the task of reducing the friction between the two, reducing wear and failure rate. When centrifugal pump is operated for a long time, pump shaft and impeller will inevitably be worn, and the existence of wear ring is to protect these key components, thereby prolonging the overall service life of centrifugal pump.

[0003] The existing Chinese patent document CN93228631.3 discloses a wear-resistant centrifugal water pump impeller and a sealing ring matched therewith, which solves the problem of poor wear resistance and short service life of the impeller and sealing ring made of a single material. The main feature is that a layer of wear-resistant alloy is sprayed on the matching parts of the impeller and the sealing ring. The advantage is that the mechanical properties of the material are reasonably utilized, and the wear resistance of the impeller and the sealing ring is improved, and the service life can be increased by 5-10 times.

[0004] However, the above-mentioned patent has certain defects in use. The device sprays a wear-resistant alloy layer to improve the service life of the device. When the alloy coating is worn off, the impeller and the wear ring need to be completely disassembled to supplement the alloy coating. The newly installed wear ring needs to be tested for concentricity with the impeller to meet the radial clearance requirement, and the friction between the two needs to be detected. The wear ring needs to be measured with tools and cannot be quickly positioned and positioned off.

[0005] Therefore, a wear ring for impeller sealing is proposed to solve the above-mentioned problems. CONTENT OF THE UTILITY MODEL

[0006] In order to overcome the shortcomings of the prior art, the utility model provides a wear ring for impeller sealing.

[0007] The utility model adopts the following technical scheme:

[0008] A wear ring for impeller sealing, comprising a wear ring body, the wear ring body is annular, and a through hole is provided in the middle for mounting a rotating shaft, a detection ring is provided on the inner side wall of the wear ring body, the detection ring is fixed on the inner wall of the wear ring body, and red lead powder is coated on the inner wall of the detection ring.

[0009] A convex ring is provided on the outer peripheral wall of the wear ring body, an annular sealing groove is provided on the convex ring, a sealing ring is provided in the sealing groove, and the convex ring and the wear ring body are integrated.

[0010] The inner wall of the wear-resistant ring body is provided with a plurality of mounting holes arranged along the circumferential direction of the center of the wear-resistant ring body, and a carbon column is arranged in each mounting hole.

[0011] The detection ring is provided with a plurality of through holes for the carbon columns to pass through, and the carbon columns extend 0.5mm-1mm out of the inner wall of the detection ring.

[0012] The cross section of the wear-resistant ring body is in the shape of "L".

[0013] Compared with the prior art, the present application has the following beneficial effects:

[0014] 1. The detection ring is firmly fixed on the inner wall of the wear-resistant ring body, and the inner wall of the detection ring is coated with red lead powder, which is an easily observed and detected marking substance and can be exposed when the wear-resistant ring is worn, thereby directly reflecting the wear degree of the wear-resistant ring and realizing real-time monitoring of the wear condition and improving the timeliness and accuracy of equipment maintenance.

[0015] 2. The plurality of carbon columns arranged on the inner wall of the wear-resistant ring body can significantly improve the wear resistance of the wear-resistant ring due to their good wear resistance and self-lubricating property, thereby prolonging the service life of the equipment. BRIEF DESCRIPTION OF DRAWINGS

[0016] Figure 1 is a schematic diagram of the overall structure of the present application;

[0017] Figure 2 is an exploded schematic diagram of the overall three-dimensional structure of the present application;

[0018] Figure 3 is a front view and a sectional view along A-A of the present application;

[0019] Figure 4 is a schematic diagram of the three-dimensional structure of the wear-resistant ring body of the present application;

[0020] Figure 5 is a schematic diagram of the three-dimensional structure of the detection ring of the present application;

[0021] In the drawings: 1, wear-resistant ring body; 11, mounting hole; 2, sealing ring; 3, detection ring; 4, carbon column; 5, protruding ring; 51, sealing groove. DETAILED DESCRIPTION

[0022] In the following, the present application will be further described in conjunction with the drawings and specific embodiments, and it should be noted that the following described embodiments or technical features can be combined in any manner to form new embodiments without conflict.

[0023] The utility model is further described below with reference to the drawings,

[0024] As Figures 1 to 5 As shown in the figure, a kind of wear ring of impeller sealing mouth, including wear ring body 1, wear ring body 1 is the basic structure of entire device, it is responsible for providing stable support and sealing function, its annular design ensures that it can be wrapped in the sealing mouth of impeller tightly, to prevent fluid leakage;Wear ring body 1 is usually made of high-strength, high-wear-resistant material, such as silicon carbide, ceramic or hard alloy, these materials have excellent hardness and wear resistance, can keep its shape and dimensional stability in long time use process, to ensure sealing effect, the wear ring body 1 is annular, and the middle is provided with through hole for the installation of rotating shaft, the inner side wall of wear ring body 1 is equipped with detection ring 3, the detection ring 3 is fixed on the inner wall of wear ring body 1, the inner wall of detection ring 3 is coated with red lead powder.Detection ring 3 is used to monitor the wear of wear ring in real time, the inner wall of detection ring 3 is coated with red lead powder, which is an easy-to-observe and detect marker substance, when wear ring wears to a certain extent, red lead powder will be exposed due to the wear of carbon column 4, to provide an intuitive wear indication, this design enables operating personnel to find and replace worn wear ring in time, to avoid equipment damage due to excessive wear.

[0025] The outer peripheral wall of wear ring body 1 is equipped with convex ring 5, the convex ring 5 is equipped with annular sealing groove 51, the sealing groove 51 is equipped with sealing ring 2, and the convex ring 5 and the sealing ring 2 jointly constitute the sealing structure of the wear ring, for enhancing the sealing effect between the wear ring and the surrounding parts, the convex ring 5 is integrated with the wear ring body 1, and the sealing ring 2 is installed in the sealing groove 51, when the wear ring is installed on the sealing mouth of the impeller, the sealing ring 2 can be tightly attached to the surrounding parts, forming an effective sealing barrier.This design can effectively prevent fluid from leaking out of the gap between the wear ring and the surrounding parts.

[0026] The inner wall of wear ring body 1 is equipped with a plurality of mounting holes 11, the mounting holes 11 are arranged along the circumcenter of wear ring body 1, the mounting holes 11 are equipped with carbon columns 4, the carbon columns 4 are fixed in the mounting holes 11, and the carbon columns 4 are important components for improving the wear resistance of the wear ring, which are installed in the mounting holes 11 of the wear ring body 1, for reducing the friction and wear between the wear ring and the rotating shaft, the carbon columns 4 are made of high-purity carbon material, having excellent wear resistance and self-lubricating property, when the rotating shaft rotates in the wear ring, the carbon columns 4 can absorb and disperse the heat and stress generated by friction, to protect the wear ring from wear, in addition, the extension design (0.5mm-1mm out of the inner wall of detection ring 3) of carbon column 4 can also gradually expose red lead powder during wear process, to realize wear monitoring function.

[0027] The detection ring 3 is provided with a plurality of through holes for the carbon column 4 to pass through, and the carbon column 4 extends 0.5-1 mm out of the inner wall of the detection ring 3.

[0028] The cross section of the wear-resistant ring body 1 is in the shape of "L", and the "L"-shaped cross section design enables the wear-resistant ring to better adapt to sealing openings of different shapes when installed. At the same time, this design also increases the wall thickness and rigidity of the wear-resistant ring, so that it can withstand greater pressure and wear. This structural optimization not only improves the durability of the wear-resistant ring, but also enables it to maintain stable sealing effect under various working conditions.

[0029] The use principle of the utility model is: when in use, the wear-resistant ring body 1 is installed on the sealing opening of the impeller, the through hole of the wear-resistant ring body 1 is aligned with the rotating shaft of the impeller, the sealing ring 2 on the convex ring 5 is correctly installed in the sealing groove 51, the sealing ring 2 is tightly attached to the surrounding components to form an effective sealing barrier, and then it is checked whether the carbon column 4 is firmly installed in the mounting hole 11 of the wear-resistant ring body 1, and it is confirmed that the through hole on the detection ring 3 corresponds to the carbon column 4.

[0030] The carbon column 4 serves as a wear-resistant layer and bears friction and wear during the rotation of the rotating shaft, and its self-lubricating property reduces the heat and stress generated by friction. With the passage of time, the wear-resistant ring body 1 and the carbon column 4 gradually wear out, and when the wear reaches a certain degree, the red lead powder on the detection ring 3 is exposed due to the wear of the carbon column 4, providing an intuitive wear indication. The operator regularly checks the wear of the wear-resistant ring and judges whether the wear-resistant ring needs to be replaced by observing the exposure degree of the red lead powder on the detection ring 3. When the wear-resistant ring is found to be severely worn, the equipment is stopped in time and a new wear-resistant ring is replaced to ensure the normal operation and sealing performance of the equipment.

[0031] The above embodiments are only preferred embodiments of the utility model, and cannot be used to limit the scope of protection of the utility model. Any non-substantial changes and replacements made by those skilled in the art on the basis of the utility model all belong to the scope of protection claimed by the utility model.

Claims

1. A wear-resistant ring for an impeller sealing port, comprising a wear-resistant ring body (1), wherein the wear-resistant ring body (1) is annular and has a through hole in the middle for mounting a rotating shaft, characterized in that, The wear-resistant ring body (1) has a detection ring (3) on its inner side wall. The detection ring (3) is fixed on the inner wall of the wear-resistant ring body (1). The inner wall of the detection ring (3) is coated with red lead powder.

2. The wear-resistant ring for an impeller sealing port according to claim 1, characterized in that: The wear-resistant ring body (1) has a raised ring (5) on its outer peripheral wall. The raised ring (5) has an annular sealing groove (51) and a sealing ring (2) in the sealing groove (51). The raised ring (5) is integrated with the wear-resistant ring body (1).

3. The wear-resistant ring for an impeller sealing port according to claim 1, characterized in that: The wear-resistant ring body (1) has multiple mounting holes (11) on its inner wall. The mounting holes (11) are arranged around the center circumference of the wear-resistant ring body (1). A carbon column (4) is provided in the mounting hole (11) and the carbon column (4) is fixed in the mounting hole (11).

4. The wear-resistant ring for an impeller sealing port according to claim 3, characterized in that: The detection ring (3) is provided with multiple through holes for carbon columns (4) to pass through, and the carbon columns (4) extend 0.5mm-1mm out of the inner wall of the detection ring (3).

5. The wear-resistant ring for an impeller sealing port according to claim 1, characterized in that: The wear-resistant ring body (1) has an "L" shaped cross section.

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