CN219327663U

CN219327663U - Shaft sheath tube of submerged pump

Info

Publication number: CN219327663U
Application number: CN202223455122.9U
Authority: CN
Inventors: 殷海良; 李昱龙; 林旭平; 张兴贵; 李栋
Original assignee: Guangxi Jinchuan Non Ferrous Metals Co ltd; Jinchuan Group Co Ltd
Current assignee: Guangxi Jinchuan Non Ferrous Metals Co ltd; Jinchuan Group Co Ltd
Priority date: 2022-12-23
Filing date: 2022-12-23
Publication date: 2023-07-11
Anticipated expiration: 2032-12-23

Abstract

The utility model discloses a shaft sleeve of a submerged pump, which relates to the field of high-temperature concentrated sulfuric acid medium fluid delivery in chemical industry and metallurgical industry, and comprises a shaft sleeve; the shaft sheath tube is provided with a transverse reinforcing rib, a vertical reinforcing rib and a connecting flange; horizontal strengthening rib and vertical strengthening rib all with axle sheath outer wall fixed connection, flange are located the both ends of axle sheath, through horizontal installation at the horizontal strengthening rib at axle sheath outer wall middle part, and vertical equipartition can consolidate the axle sheath pipe at the vertical strengthening rib of axle sheath outer wall, when protecting the pump shaft not receive the medium corrosion, provide stable support for the pump shaft rotation, avoid the axle sheath pipe to receive the heat altered shape, and lead to the phenomenon emergence of pump shaft deformation, extension submerged pump's life.

Description

Shaft sheath tube of submerged pump

Technical Field

The utility model relates to the field of high-temperature concentrated sulfuric acid medium fluid delivery in chemical and metallurgical industries, in particular to a shaft sleeve of a submerged pump.

Background

In the chemical acid making industry, a submerged pump is generally used for conveying fluid media, and the submerged pump is a positive pressure conveying vertical pump, can effectively solve the problems of air resistance and cavitation, is suitable for conveying various corrosive materials with any concentration, such as strong acid, alkali, salt, strong oxidant and the like, and mainly comprises a bottom plate, a shaft protection sleeve, a volute pump body, an impeller, a pump shaft, a bearing, a motor and the like. Traditional submerged pump protects the pump shaft through the shaft sheath pipe, and shaft sheath pipe and bottom plate and spiral case pump body coupling play the effect of support, but traditional shaft sheath pipe is a tubular sleeve pipe only, receives the influence of high temperature easily, and thermal expansion takes place deformation to influence the pump shaft crooked, make the pump vibration increase, influence the life of pump.

Patent CN202220524940.0 discloses a submerged pump axle stabilising arrangement, including the mounting disc, the mounting disc bottom is provided with the stay tube, through setting up the cooperation of first fan-shaped stable piece, second fan-shaped stable piece, rolling groove, ball, slider and slide rail and use, the normal of the axis body of being convenient for when the operation, the staff is respectively pegged graft first fan-shaped stable piece and second fan-shaped stable piece through the slider slip on the slide rail of stay tube inner wall, later put into the rolling groove inside the ball, later install the axis body inside the stay tube again, make ball outside surface and axis body surface contact. The device can support the pump shaft, but can not strengthen the supporting tube, the phenomenon that the supporting tube is deformed by heating can occur, the ball of the device is in direct contact with the pump shaft, the pump shaft is easy to wear, and the service life of the submerged pump is reduced.

Disclosure of Invention

The utility model aims to provide a shaft sheath tube of a submerged pump for reinforcing the strength of the shaft sheath tube, so as to solve the technical problem that the shaft sheath tube is easy to deform when heated.

In order to solve the technical problems, the utility model adopts the following scheme:

a shaft sheath tube of a submerged pump, comprising a shaft sheath tube; the shaft sheath tube is provided with transverse reinforcing ribs, vertical reinforcing ribs and connecting flanges; the transverse reinforcing ribs are fixedly connected with the vertical reinforcing ribs and are connected with the outer wall of the shaft sheath tube; the connecting flanges are positioned at two ends of the shaft sheath tube. The shaft sheath tube is positioned outside the pump shaft in the submerged pump, is connected with the pump body and the base through the connecting flange, supports the bearing and the motor, and protects the pump shaft from bending and being corroded by media.

Further limited, the vertical reinforcing ribs are provided with three or more than three; is uniformly distributed on the outer wall of the shaft sheath tube. Three or more than three vertical reinforcing ribs are uniformly distributed on the outer wall of the shaft sheath tube, so that the shaft sheath tube is more stable.

Further defined, the transverse stiffener is circular; the transverse reinforcing ribs are fixedly arranged in the middle of the outer wall of the shaft protection sleeve; the vertical reinforcing ribs penetrate through the transverse reinforcing ribs and are fixedly connected with the transverse reinforcing ribs. The vertical reinforcing rib can be divided into two layers by the transverse reinforcing rib fixedly arranged in the middle of the outer wall of the shaft protecting sleeve, so that the stability of the shaft protecting sleeve is better enhanced.

Further defined, the connection flange comprises a connection flange a and a connection flange B; the connecting flange A is fixedly connected with the top end of the shaft sheath tube; the connecting flange B is fixedly connected with the bottom end of the shaft protection sleeve. The shaft sheath tube is connected with the base of the submerged pump through the connecting flange A, and is connected with the pump body of the submerged pump through the connecting flange B, so that the whole pump is convenient to detach.

Further defined, the connecting flange B is provided with a sealing ring; the sealing ring is fixedly arranged at the bottom end of the connecting flange B; the sealing ring is an O-shaped sealing ring. The sealing ring of O can prevent the medium from entering the shaft sheath tube through the connecting gap between the connecting flange A and the connecting flange B and the gap between the connecting flange and the pump body, and corroding the pump shaft.

Further defined, the sealing ring is made of fluororubber. The sealing ring of the fluororubber can resist high temperature, oil and chemical corrosion, and can avoid medium corrosion of the sealing ring when high-temperature concentrated sulfuric acid medium is conveyed.

Further defined, the shaft sheath tube is provided with a communicating tube; one end of the communicating pipe is connected to one side of the shaft sheath pipe in a penetrating way; the communicating pipe is provided with a matched pipe cover; the pipe cover is in threaded connection with the communicating pipe. The lubricating oil is conveniently added to the pump shaft inside the shaft sleeve through the communicating pipe, or water is conveniently added to flush when a medium enters the shaft sleeve, and the pipe cover matched with the communicating pipe can seal the shaft sleeve when the shaft sleeve is used, so that the medium is prevented from entering the shaft sleeve through the communicating pipe to corrode the pump shaft.

The working principle of the utility model is as follows:

when the submerged pump is used, the shaft sheath is sleeved outside the submerged pump shaft, and is connected with the base and the pump body of the submerged pump through the connecting flange, so that the submerged pump is supported and protected, the pump shaft is prevented from being corroded by media, and the shaft sheath can be reinforced by the transverse reinforcing ribs and the vertical reinforcing ribs fixedly arranged on the outer wall of the shaft sheath, so that the deformation of the shaft sheath at high temperature is prevented.

The beneficial effects of the utility model are as follows:

1. according to the utility model, the structure of the shaft sheath tube is changed by the transverse reinforcing ribs and the vertical reinforcing ribs arranged outside the shaft sheath tube, so that the shaft sheath tube is reinforced and stable, the pump shaft is protected from being corroded by a medium, meanwhile, a stable support is provided for the rotation of the pump shaft, the phenomenon that the pump shaft is deformed due to the fact that the shaft sheath tube is subjected to thermal deformation is avoided, and the service life of the submerged pump is prolonged.

2. The sealing ring is made of fluororubber, is fixedly arranged at the bottom end of the connecting flange B, can seal the shaft sheath tube, and prevents media from entering the shaft sheath tube through a connecting gap between the connecting flange A and the connecting flange B and a gap between the connecting flange and the pump body to corrode the pump shaft.

3. The communicating pipe and the pipe cover are convenient for adding lubricating oil to the pump shaft in the shaft protecting sleeve pipe, so that the shaft protecting sleeve pipe is lubricated, or when a medium enters the shaft protecting sleeve pipe, water is conveniently introduced through the communicating pipe for flushing, and the pipe cover can seal the shaft protecting sleeve pipe when the shaft protecting sleeve pipe is used, so that the medium is prevented from entering the shaft protecting sleeve pipe through the communicating pipe to corrode the pump shaft.

Drawings

FIG. 1 is a schematic elevational view of the present utility model;

FIG. 2 is a schematic cross-sectional elevation view of the present utility model;

FIG. 3 is a schematic view of the bottom view of the present utility model;

fig. 4 is a schematic top view of the present utility model.

In the figure: 1. a shaft sleeve; 2. transverse reinforcing ribs; 3. vertical reinforcing ribs; 4. a connecting flange; 5. a connecting flange A; 6. a connecting flange B; 7. a seal ring; 8. a communicating pipe; 9. and a tube cover.

Detailed Description

The following description of the embodiments of the present utility model will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present utility model, but not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the utility model without making any inventive effort, are intended to be within the scope of the utility model.

In the description of the present utility model, it should be noted that, directions or positional relationships indicated by terms such as "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc., are based on directions or positional relationships shown in the drawings, are merely for convenience of description and simplification of description, and do not indicate or imply that the apparatus or element to be referred to must have a specific direction, be constructed and operated in the specific direction, and thus should not be construed as limiting the present utility model; the terms "first," "second," "third," and the like, are used for descriptive purposes only and are not to be construed as indicating or implying relative importance, and furthermore, unless explicitly specified and limited otherwise, the terms "mounted," "connected," "coupled," and the like are to be construed broadly, and may be fixedly coupled, detachably coupled, or integrally coupled, for example; can be mechanically or electrically connected; can be directly connected or indirectly connected through an intermediate medium, and can be communication between two elements. The specific meaning of the above terms in the present utility model will be understood in specific cases by those of ordinary skill in the art.

The shaft sleeve of the submerged pump is further described in detail below with reference to the accompanying drawings:

example 1

A shaft sheath tube of a submerged pump, which comprises a shaft sheath tube 1; the shaft protection sleeve 1 is provided with a transverse reinforcing rib 2, a vertical reinforcing rib 3 and a connecting flange 4; the transverse reinforcing ribs 2 are fixedly connected with the vertical reinforcing ribs 3 and are connected with the outer wall of the shaft protection sleeve 1; the connecting flanges 4 are positioned at two ends of the shaft protection sleeve 1. The shaft protection sleeve 1 is positioned outside the pump shaft in the submerged pump and is used for connecting the pump body with the base, supporting the bearing and the motor and protecting the pump shaft from bending and being corroded by media.

The working principle of this embodiment is as follows:

during the use, with the outside of axle sheath pipe 1 cover in submerged pump shaft, through flange 4 and submerged pump's base and pump body coupling for support submerged pump and protection pump shaft, avoid the pump shaft to be corroded by the medium, horizontal strengthening rib 2 and vertical strengthening rib 3 of fixed mounting axle sheath pipe 1 outer wall can consolidate axle sheath pipe 1, prevent that axle sheath pipe 1 under the high temperature from taking place deformation, lead to the pump shaft to take place deformation thereupon.

Example 2

The difference from embodiment 1 is that the vertical reinforcing ribs 3 are provided with three or more; the outer wall of the shaft protection sleeve 1 is uniformly distributed; the transverse reinforcing rib 2 is round and is fixedly arranged in the middle of the outer wall of the shaft sheath tube 1; the vertical reinforcing ribs 3 penetrate through the transverse reinforcing ribs 1 and are fixedly connected with the transverse reinforcing ribs. Three or more than three vertical reinforcing ribs 3 are uniformly distributed on the outer wall of the shaft protective sleeve 1, so that the shaft protective sleeve 1 is more stable; the vertical reinforcing ribs 3 can be divided into two layers by the transverse reinforcing ribs 2 fixedly arranged in the middle of the outer wall of the shaft protecting sleeve 1, so that the stability of the shaft protecting sleeve 1 is better enhanced.

The working principle of this embodiment is the same as that of embodiment 1.

Example 3

The difference from embodiment 2 is that the connection flange 4 includes a connection flange A5 and a connection flange B6; the connecting flange A5 is fixedly connected with the top end of the shaft sheath tube 1; the connecting flange B6 is fixedly connected with the bottom end of the shaft sheath tube 1; the connecting flange B6 is provided with a sealing ring 7; the sealing ring 7 is fixedly arranged at the bottom end of the connecting flange B6; the seal ring 7 is an "O" shaped seal ring made of fluororubber. The shaft protecting sleeve 1 is connected with the base of the submerged pump through the connecting flange A5, is connected with the pump body of the submerged pump through the connecting flange B6, is convenient to detach integrally, and the O-shaped fluororubber sealing ring 7 can resist high temperature, oil resistance and chemical corrosion, can prevent the medium from corroding the sealing ring 7 when high-temperature concentrated sulfuric acid medium is conveyed, and enters the shaft protecting sleeve 1 through a connecting gap between the connecting flange A and the connecting flange B and a gap between the connecting flange B6 and the pump body to corrode pump shaft medium.

The working principle of this embodiment is the same as that of embodiment 2.

Example 4

The difference from embodiment 3 is that the shaft sheath tube 1 is provided with a communicating tube 8; one end of the communicating pipe 8 is connected with one side of the shaft protecting sleeve 1 in a penetrating way; the communicating pipe 8 is provided with a matched pipe cover 9; the pipe cover 9 is in threaded connection with the communicating pipe 8. The lubricating oil is conveniently added to the pump shaft inside the shaft protecting sleeve 1 through the communicating pipe 8, or water is conveniently added to flush the pump shaft when a medium enters the shaft protecting sleeve 1, and the pipe cover 9 matched with the communicating pipe 8 can seal the shaft protecting sleeve 1 when the shaft protecting sleeve 1 is used, so that the medium is prevented from entering the shaft protecting sleeve 1 through the communicating pipe 8 to corrode the pump shaft.

The working principle of this embodiment is the same as that of embodiment 3.

Finally, it should be noted that: the foregoing description is only illustrative of the preferred embodiments of the present utility model, and although the present utility model has been described in detail with reference to the foregoing embodiments, it will be apparent to those skilled in the art that modifications may be made to the embodiments described, or equivalents may be substituted for elements thereof, and any modifications, equivalents, improvements or changes may be made without departing from the spirit and principles of the present utility model.

Claims

1. A shaft sleeve of a submerged pump, characterized in that: comprises a shaft sheath tube (1); the shaft sheath tube (1) is provided with a transverse reinforcing rib (2), a vertical reinforcing rib (3) and a connecting flange (4); the transverse reinforcing ribs (2) are fixedly connected with the vertical reinforcing ribs (3) and are connected with the outer wall of the shaft sheath tube (1); the connecting flanges (4) are positioned at two ends of the shaft sheath tube (1).

2. A submerged pump's axle sleeve as claimed in claim 1, wherein: three or more than three vertical reinforcing ribs (3) are arranged; the outer wall of the shaft sheath tube (1) is vertically and uniformly distributed.

3. A submerged pump's axle sleeve according to claim 2, characterized in that: the transverse reinforcing ribs (2) are round; the transverse reinforcing ribs (2) are fixedly arranged in the middle of the outer wall of the shaft sheath tube (1); the vertical reinforcing ribs (3) penetrate through the transverse reinforcing ribs (2) and are fixedly connected with the transverse reinforcing ribs.

4. A submerged pump's axle sleeve as claimed in claim 1, wherein: the connecting flange (4) comprises a connecting flange A (5) and a connecting flange B (6); the connecting flange A (5) is fixedly connected with the top end of the shaft sheath tube (1); the connecting flange B (6) is fixedly connected with the bottom end of the shaft sheath tube (1).

5. The submerged pump shaft sleeve of claim 4, wherein: the connecting flange B (6) is provided with a sealing ring (7); the sealing ring (7) is fixedly arranged at the bottom end of the connecting flange B (6); the sealing ring (7) is an O-shaped sealing ring.

6. The submerged pump shaft sleeve of claim 5, wherein: the sealing ring (7) is made of fluororubber.

7. A submerged pump's axle sleeve as claimed in claim 1, wherein: the shaft sheath tube (1) is provided with a communicating tube (8); one end of the communicating pipe (8) is connected with one side of the shaft protecting sleeve (1) in a penetrating way; the communicating pipe (8) is provided with a matched pipe cover (9); the pipe cover (9) is in threaded connection with the communicating pipe (8).