CN216381977U

CN216381977U - Corrosion-resistant stainless steel bushing diffuser

Info

Publication number: CN216381977U
Application number: CN202123065698.XU
Authority: CN
Inventors: 唐建; 谭彩霞; 黄俊杰; 莫毅; 韩媛媛
Original assignee: Airfeng Inc; Guangxi Liuzhou Iron and Steel Group Co Ltd
Current assignee: Airfeng Inc; Guangxi Liuzhou Iron and Steel Group Co Ltd
Priority date: 2021-12-08
Filing date: 2021-12-08
Publication date: 2022-04-26
Anticipated expiration: 2031-12-08

Abstract

The utility model discloses a corrosion-resistant stainless steel bushing diffuser, which belongs to the field of diffusers and comprises a base and a cylinder, wherein the bottom of the cylinder is fixedly connected with the top of the base, the top of the cylinder is sleeved with a sleeve, the position of the sleeve is just positioned on the sealing surface of the cylinder, four screws are arranged inside the sleeve, the surface of the cylinder is provided with a thread groove matched with the screws for use, the outer side of the sleeve is sleeved with a protective ring, the inner side of the protective ring is contacted with one side of the screws, which is far away from the sleeve, the surface of the protective ring is provided with a round hole matched with the screws for use, two sides of the protective ring are fixedly connected with a power-assisting block, the top and the bottom of the inner side of the protective ring are provided with sealing rings, the wear consumption of the diffuser can be reduced, and the condition that equipment is damaged due to wear debris is avoided, the failure rate of the diffuser is reduced, and the service life of the diffuser is prolonged.

Description

Corrosion-resistant stainless steel bushing diffuser

Technical Field

The utility model relates to the field of diffusers, in particular to a corrosion-resistant stainless steel bushing diffuser.

Background

The diffuser is a device which is generated by a centrifugal compressor and converts static pressure energy by means of kinetic energy, the absolute speed C2 of airflow at the outlet of an impeller of the centrifugal compressor is generally 200-300m/s, the airflow speed of the impeller with a high energy head can reach more than 500m/s, the kinetic energy accounts for a considerable proportion of the total head of the impeller for the gas, for example, the radial straight blade type impeller accounts for 50 percent, and the water pump type compressor type impeller also accounts for 25-40 percent, so the kinetic energy needs to be effectively converted into the static pressure energy, which is the task of the diffuser, and the diffuser also plays the role of collecting and leading out the gas.

And the position of the sealing surface of the existing diffuser is very easy to erode and corrode when in use, so that the efficiency of the air compressor is influenced by the short circuit of the high-low pressure air circuit, the fragments falling due to abrasion easily cause the damage of internal elements, the replacement cost of the diffuser is too high, and the improvement is needed, therefore, the corrosion-resistant stainless steel bushing diffuser is provided, the stainless steel bushing is adopted in the position of the sealing surface of the diffuser, the service life is prolonged, and the protection of the original softer material on the impeller is ensured.

SUMMERY OF THE UTILITY MODEL

1. Technical problem to be solved

Aiming at the problems in the prior art, the utility model aims to provide a corrosion-resistant stainless steel bushing diffuser which can reduce the wear consumption of the diffuser, avoid the condition of equipment damage caused by wear debris, reduce the fault rate of the diffuser, reduce the downtime, prolong the service life of the diffuser, save the cost and simultaneously keep the protection effect of the original material on an impeller.

2. Technical scheme

In order to solve the above problems, the present invention adopts the following technical solutions.

The utility model provides a cover diffuser is inlayed to corrosion-resistant stainless steel, includes base and drum, the bottom of drum and the top fixed connection of base, the top cover of drum is equipped with the sleeve, telescopic position is being in the sealed face of drum, telescopic inside all is provided with four screws, the thread groove that uses with the screw cooperation is seted up on the surface of drum, telescopic outside cover is equipped with the guard ring, telescopic one side contact is kept away from to the inboard and the screw of guard ring, the round hole that uses with the screw cooperation is seted up on the surface of guard ring, the equal fixedly connected with helping hand piece in both sides of guard ring, the inboard top and the bottom of guard ring all are provided with the sealing washer.

Furthermore, the base and the cylinder are both made of aluminum-titanium alloy, and the sleeve is made of stainless steel.

Furthermore, the diameter of the round hole is larger than that of the screw, and the position of the round hole can be adjusted by rotating the protective ring.

Furthermore, the inner side of the protective ring is provided with an internal thread, and the outer side of the sleeve is provided with an external thread matched with the internal thread for use.

Furthermore, the surface of the power assisting block is provided with anti-skid grains.

Furthermore, the outer side of the sealing ring is fixedly connected with the inner side of the protective ring, and the surface of the inner side of the sealing ring is in contact with the outer surface of the cylinder.

3. Advantageous effects

Compared with the prior art, the utility model has the advantages that:

(1) the scheme is characterized in that the sleeve is arranged, when the equipment is operated, the position of the sleeve is eroded, the sleeve is made of stainless steel, compared with the original aluminum-titanium alloy material, the sleeve is higher in hardness, more wear-resistant and corrosion-resistant, the service life can be greatly prolonged, the equipment is prevented from being damaged by abraded and dropped impurities, the protection effect of the aluminum-titanium alloy material on the impeller is kept while the cost is saved, the screw can be sealed and blocked by the protection ring, the screw is prevented from being generated when the diffuser is operated, the fixing effect of the device is prevented from being influenced, the connection between the sleeve and the cylinder is firmer and more stable, meanwhile, the contact between the screw and the outside is reduced, the situation of rusting and the like is avoided, the step of disassembling and assembling the sleeve can be simplified by arranging the circular hole, the power assisting block and the sealing ring to be matched for use, and only the sleeve can be replaced after the sleeve is seriously abraded after long time use, the service life of the diffuser is further prolonged.

Drawings

FIG. 1 is a schematic view of the overall construction of a diffuser according to the present invention;

FIG. 2 is a top plan view of the diffuser of the present invention in its entirety;

FIG. 3 is an overall elevation view of a diffuser of the present invention;

FIG. 4 is a front cross-sectional view of the barrel and sleeve of the present invention;

fig. 5 is an enlarged view of the utility model at a in fig. 4.

The reference numbers in the figures illustrate:

1. a base; 2. a cylinder; 3. a sleeve; 4. a screw; 5. a thread groove; 6. a guard ring; 7. a circular hole; 8. a booster block; 9. and (5) sealing rings.

Detailed Description

The technical solution in the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention; it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all embodiments, and all other embodiments obtained by those skilled in the art without any inventive work are within the scope of the present invention.

Example 1:

please refer to fig. 1-5, a corrosion-resistant stainless steel bushing diffuser comprises a base 1 and a cylinder 2, the bottom of the cylinder 2 is fixedly connected with the top of the base 1, the top of the cylinder 2 is sleeved with a sleeve 3, the position of the sleeve 3 is just positioned on the sealing surface of the cylinder 2, four screws 4 are arranged inside the sleeve 3, a thread groove 5 matched with the screw 4 for use is arranged on the surface of the cylinder 2, a guard ring 6 is sleeved on the outer side of the sleeve 3, the inner side of the guard ring 6 is in contact with one side of the screw 4 far away from the sleeve 3, a round hole 7 matched with the screw 4 for use is arranged on the surface of the guard ring 6, power assisting blocks 8 are fixedly connected to both sides of the guard ring 6, and sealing rings 9 are arranged at the top and the bottom of the inner side of the guard ring 6.

Referring to fig. 1, the base 1 and the cylinder 2 are made of aluminum-titanium alloy, and the sleeve 3 is made of stainless steel.

Referring to fig. 1, the diameter of the round hole 7 is larger than that of the screw 4, the position of the round hole 7 can be adjusted by rotating the protection ring 6, the step of mounting and dismounting the sleeve 3 by the round hole 7 is simpler, the protection ring 6 is not required to be completely dismounted, and the protection ring 6 is only required to be rotated to enable the position of the round hole 7 to be opposite to the screw 4, so that the dismounting can be carried out.

Referring to fig. 5, the inner side of the guard ring 6 is provided with an internal thread, the outer side of the sleeve 3 is provided with an external thread used in cooperation with the internal thread, the guard ring 6 can be in a more stable state on the surface of the sleeve 3 by rotating, and the blocking screw 4 is continuously blocked.

Referring to fig. 1, the surface of the power assisting block 8 is provided with anti-slip lines, so that a user can apply force to rotate the protecting ring 6 when disassembling and assembling are carried out, and the user can disassemble and assemble the power assisting block more easily by means of the force assisting block 8.

Referring to fig. 2 and 5, the outer side of the sealing ring 9 is fixedly connected with the inner side of the guard ring 6, and the surface of the inner side of the sealing ring 9 is in contact with the outer surface of the cylinder 2.

When in use: the diffuser is thrown into with the air to the inside high-speed rotation of rotor of air compressor machine, compressed air flows into next level through drum 2 behind the striking diffuser, the sealed face cover of drum 2 is equipped with sleeve 3, sleeve 3 is stainless steel, the higher resistance that can be better of hardness erodees the corruption, when sleeve 3 uses wearing and tearing seriously for a long time, can rotate guard ring 6 through helping hand piece 8, make the round hole 7 on guard ring 6 surface relative with screw 4's position, dismantle screw 4 afterwards, can wholly take off sleeve 3 and change, at first establish the sleeve 3 cover on drum 2's surface during the installation, then it is fixed with sleeve 3 and drum 2 through screw 4, rotate guard ring 6 again, make round hole 7 stagger with screw 4's position, the installation can normal use.

The above are merely preferred embodiments of the present invention; the scope of the utility model is not limited thereto. Any person skilled in the art should be able to cover the technical scope of the present invention by equivalent or modified solutions and modifications within the technical scope of the present invention.

Claims

1. The utility model provides a cover diffuser is inlayed to corrosion-resistant stainless steel, includes base (1) and drum (2), its characterized in that: the bottom of drum (2) and the top fixed connection of base (1), the top cover of drum (2) is equipped with sleeve (3), the position of sleeve (3) is just in the sealed face of drum (2), the inside of sleeve (3) all is provided with four screws (4), thread groove (5) that use with screw (4) cooperation are seted up on the surface of drum (2), the outside cover of sleeve (3) is equipped with guard ring (6), one side contact of sleeve (3) is kept away from with screw (4) to the inboard of guard ring (6), round hole (7) that use with screw (4) cooperation are seted up on the surface of guard ring (6), the equal fixedly connected with helping hand piece (8) in both sides of guard ring (6), the inboard top and the bottom of guard ring (6) all are provided with sealing washer (9).

2. The corrosion-resistant stainless steel jacketed diffuser of claim 1, wherein: the base (1) and the cylinder (2) are both made of aluminum-titanium alloy, and the sleeve (3) is made of stainless steel.

3. The corrosion-resistant stainless steel jacketed diffuser of claim 1, wherein: the diameter of the round hole (7) is larger than that of the screw (4), and the position of the round hole (7) can be adjusted by rotating the protective ring (6).

4. The corrosion-resistant stainless steel jacketed diffuser of claim 1, wherein: the inner side of the protective ring (6) is provided with an internal thread, and the outer side of the sleeve (3) is provided with an external thread matched with the internal thread for use.

5. The corrosion resistant stainless steel jacketed diffuser of claim 1, wherein; the surface of the power assisting block (8) is provided with anti-skid grains.

6. The corrosion-resistant stainless steel jacketed diffuser of claim 1, wherein: the outer side of the sealing ring (9) is fixedly connected with the inner side of the protective ring (6), and the surface of the inner side of the sealing ring (9) is in contact with the outer surface of the cylinder (2).