CN219101680U

CN219101680U - Submerged pump sliding bearing structure with heat preservation jacket

Info

Publication number: CN219101680U
Application number: CN202223391415.5U
Authority: CN
Inventors: 李辉; 张可; 周梓卫; 王笑奕
Original assignee: Shenyang Kaiquan Petrochemical Pump Co ltd
Current assignee: Shenyang Kaiquan Petrochemical Pump Co ltd
Priority date: 2022-12-19
Filing date: 2022-12-19
Publication date: 2023-05-30
Anticipated expiration: 2032-12-19

Abstract

The utility model relates to a submerged pump sliding bearing structure with a heat preservation jacket, which comprises: the main bearing body, the pump shell, the heat preservation cavity and the heat conduction cover are arranged on the outer part of the main bearing body, a single-way pipe is arranged on the ring support, the pump shell is arranged on the outer side of the main bearing body, a blocking cavity is arranged in the pump shell, and a heat preservation adhesive layer is arranged on the inner wall of the blocking cavity; the heat preservation chamber is arranged in the main bearing body, a double-spiral runner and a spiral heat exchange plate are sequentially arranged in the heat preservation chamber, the heat conduction cover is inserted into the main bearing body in a spline connection mode and is connected in a bolt connection mode, and a guide bearing is arranged on the Wen Gaixia side of the guide. The double-rotation flow channel can increase the flow area of steam, has good heat exchange performance, ensures that the guide bearing can be quickly heated and used, and has extremely short preheating time; in addition, the vacuum heat preservation cavity and the separation cavity can preserve the temperature, so that heat loss is prevented, and the heat preservation performance is excellent.

Description

Submerged pump sliding bearing structure with heat preservation jacket

Technical Field

The utility model belongs to the technical field of submerged pumps, and particularly relates to a submerged pump sliding bearing structure with a heat preservation jacket.

Background

The submerged pump is generally a vertical single-stage centrifugal pump structure, and is installed below the ground surface to convey high-temperature mediums which are easy to crystallize, such as sulfur, asphalt and the like. The sulfur is solid at normal temperature, when the temperature does not reach the melting point of the sulfur, the medium is solidified, parts of the sliding bearing are bonded together, and the pump is started to lock. Therefore, the temperature of the sliding bearing parts in contact with the medium is required to be higher than the melting point of the medium, and the locking phenomenon is prevented.

The prior art discloses a sulphur submerged pump slide bearing structure, and the publication number is: CN203702638U, the steam tracing cavity is an annular cavity formed by communicating steam holes on two sides, the cavity structure is difficult to retain steam, so that the heat exchange efficiency between the steam and the bearing box is poor, when in use, the bearing box is often preheated for several ten minutes or more than ten minutes, the temperature of the bearing box is very slow, the use is very inconvenient, and the structural heat exchange performance of the cavity is very poor; and the heat preservation performance of the cavity is poor, and the cavity is preheated for more than ten minutes when steam is supplied at intervals, which is more time-consuming.

Disclosure of Invention

The utility model provides a submerged pump sliding bearing structure with a heat preservation jacket, which aims to solve the technical problems.

The technical scheme adopted for solving the technical problems is as follows: a submerged pump slide bearing structure with a thermal insulation jacket, comprising:

the main bearing body is provided with a ring support body outside, a single-way pipe is arranged on the ring support body, a baffle is arranged in the single-way pipe, and two sides of the baffle in the single-way pipe are respectively provided with an air inlet channel and an air outlet channel;

the pump housing is arranged at the outer side of the main bearing body and is in bolting connection with the ring support body, a blocking cavity is arranged in the pump housing, a heat insulation paste layer is arranged on the inner wall of the blocking cavity, and a pump shaft is arranged in the middle of the blocking cavity;

the heat preservation cavity is arranged in the main bearing body, a double-rotation flow passage and a spiral heat exchange plate are sequentially arranged in the heat preservation cavity, and the double-rotation flow passage is communicated with the single-pass pipe;

the heat conduction cover is inserted into the main bearing body in a spline connection mode and is connected in a bolt mode, a guide bearing is arranged on the side of the guide Wen Gaixia, and the guide bearing is sleeved on the pump shaft.

Preferably, the heat preservation cavity is arranged outside the guide bearing, and the height of the heat preservation cavity is larger than that of the guide bearing.

Preferably, the double-rotation flow channels in the heat preservation cavity are uniformly arranged in a spiral mode, and the spiral heat exchange plates are connected with the pipe wall of the double-rotation flow channels and the main bearing body in a welding mode.

Preferably, the double-spiral flow channel is formed by spirally coiling a metal pipe of one passage after being folded in half.

Preferably, the double-swirl flow channel is in a tube shape of a channel, two nozzles of the double-swirl flow channel are adjacent, one nozzle of the double-swirl flow channel is communicated with the air inlet channel, and the other nozzle of the double-swirl flow channel is communicated with the air outlet channel.

Preferably, the heat preservation cavity is in a vacuumizing state.

Preferably, the double-spiral flow channel, the spiral heat exchange plate and the temperature guide cover are made of copper materials, and the inner holes of the spiral heat exchange plate are clung to the guide bearing.

Preferably, a self-flushing hole is formed in the right side of the main bearing body, and the self-flushing hole is communicated with the sliding surface on the inner side of the guide bearing.

The beneficial effects of the utility model are as follows: according to the utility model, the flow area of steam can be increased through the double-spiral flow channels, and the spiral heat exchange plates can perform better heat exchange, so that the guide bearing can be rapidly heated and used, and the preheating time is extremely short; in addition, the vacuum heat preservation cavity and the separation cavity can preserve heat to the temperature, so that heat loss is prevented, the heat preservation performance is excellent, and the main bearing body can be rapidly put into use after being temporarily suspended for steam supply.

Drawings

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

FIG. 2 is another schematic front view of the present utility model;

FIG. 3 is a schematic front view of a dual swirl flow channel according to an embodiment of the present utility model;

FIG. 4 is a schematic rear view of a dual swirl flow channel according to an embodiment of the present utility model;

in the figure: the main bearing body 1, the ring support body 11, the single-way pipe 12, the baffle 13, the air inlet channel 14 and the air outlet channel 15; 2 a pump shell, 21 a blocking cavity, 22 a heat insulation pasting layer and 23 a pump shaft; 3 heat preservation chamber, 31 double-rotation flow channel, 32 spiral heat exchange plate, 4 heat conduction cover, 41 guide bearing, 5 self-flushing hole.

Detailed Description

The technical solutions of the embodiments of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present utility model, and it should be understood that the preferred embodiments described herein are only for illustrating and explaining the present utility model, not for limiting the present utility model, and obviously, the described embodiments are only some embodiments of the present utility model, not all embodiments. The components of the embodiments of the present utility model generally described and illustrated in the figures herein may be arranged in a variety of different configurations. All other embodiments, which can be made by a person skilled in the art without making any inventive effort, are intended to be within the scope of the present utility model. In embodiments, the components of the embodiments of the present application, which are generally described and illustrated in the figures herein, may be arranged and designed in a wide variety of different configurations. Thus, the following detailed description of the embodiments of the present application, as provided in the accompanying drawings, is not intended to limit the scope of the application, as claimed, but is merely representative of selected embodiments of the application.

In the description of the present application, it should be noted that the directions or positional relationships indicated by the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc. are based on the directions or positional relationships shown in the drawings, are merely for convenience of description of the present application and to simplify the description, and do not indicate or imply that the devices or elements referred to must have a specific orientation, be configured and operated in a specific orientation, and thus should not be construed as limiting the present application. Furthermore, the terms "first," "second," and "third" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance.

In the description of the present application, it should be noted that, unless explicitly specified and limited otherwise, the terms "mounted," "connected," and "connected" are to be construed broadly, and may be either fixedly connected, detachably connected, or integrally connected, for example; may be a mechanical connection; can be directly connected or indirectly connected through an intermediate medium, and can be communication between two elements. The specific meaning of the terms in this application will be understood by those of ordinary skill in the art in a specific context.

Referring to fig. 1 to 4, an aspect of the present utility model provides a submerged pump slide bearing structure with a heat insulating jacket, comprising: the main bearing body 1, the pump housing 2, the heat preservation cavity 3 and the heat conduction cover 4.

Hereinafter, a partial structure and principle of the above-described components according to the present insulating jacket structure will be specifically described.

As an example, as shown in fig. 1 and 2, the main bearing body 1 may be manufactured by turning, the outer part of the main bearing body 1 is provided with a ring support 11, and the ring support 11 and the main bearing body 1 may be integrally manufactured; a single-pass pipe 12 can be arranged on the ring support 11, and the single-pass pipe 12 can be welded with the ring support 11; a baffle 13 may be disposed in the single-pass tube 12, the baffle 13 is disposed in a middle position in the single-pass tube 12, the baffle 13 changes the single-pass tube 12 into two tubular passages, and two sides of the baffle 13 in the single-pass tube 12 are respectively provided with an air inlet channel 14 and an air outlet channel 15. The single-pass pipe 12 is a steam-connected pipeline, the inlet and outlet of the steam pipeline is connected through a pipe, the heat loss in the steam transmission process is small, the steam can be guaranteed to have higher temperature, the heat loss of the steam when entering the main bearing body 1 is small, and the steam can be guaranteed to heat the main bearing body 1 better. The number of the pump housings 2 may be two, the pump housings 2 may be cylindrical closed ring cylinders, the two pump housings 2 may be respectively disposed at the upper and lower sides of the main bearing body 1, and sealing strips may be pressed between the pump housings 2 and the ring support 11 for bolting connection. The inside of the pump housing 2 can be provided with a baffle cavity 21, the inner wall of the baffle cavity 21 is provided with a heat insulation paste layer 22, the heat insulation paste layer 22 can be bonded on the inner wall of the baffle cavity 21 by adopting ceramic materials or high polymer materials with good heat insulation performance, the middle part of the baffle cavity 21 is provided with a pump shaft 23, and the pump shaft 23 is in clearance fit with the heat insulation paste layer 22.

In the embodiment of the present utility model, referring to fig. 2, two pump housings 2 may be additionally installed on the upper side and the lower side of the main bearing body 1, so as to ensure that the main bearing body 1 may be blocked by the blocking cavity 21 in a surrounding manner, so that the heat insulation performance is better, and the heat loss of the main bearing body 1 is effectively avoided.

Referring to fig. 1 to 4, the heat preservation chamber 3 is disposed in the main bearing body 1, the heat preservation chamber 3 may be an annular cavity in the main bearing body 1, the main bearing body 1 may be made of a white steel material, and the main bearing body 1 may be made of a split welding type. A double cyclone channel 31 and a spiral heat exchange plate 32 are sequentially arranged in the heat preservation cavity 3; the double swirl channel 31 may be communicated with the single-pass pipe 12, specifically, the double swirl channel 31 may be a pipe shape of one passage and the pipe is folded in half so that two pipe orifices are adjacent, one pipe orifice of the double swirl channel 31 is communicated with the air inlet channel 14, the other pipe orifice of the double swirl channel 31 is communicated with the air outlet channel 15, the air inlet channel 14 is communicated with the air outlet channel 15 through the double swirl channel 31 to form a passage communicated with a pipeline, and the double swirl channel 31 is uniformly arranged in the heat preservation cavity 3 in a spiral winding shape; the spiral heat exchange plates 32 are in cylindrical sleeve shape, the upper end face and the lower end face of the spiral heat exchange plates 32 are connected with the main bearing body 1 in a welded mode, and a cavity between the spiral heat exchange plates 32 and the main bearing body 1 forms the heat preservation cavity 3. The double-swirl channel 31 can be wound on the outside of the spiral heat exchange plate 32, the spiral heat exchange plate 32 and the pipe wall of the double-swirl channel 31 and the main bearing body 1 can be welded and connected, the double-swirl channel 31 and the spiral heat exchange plate 32 can be made of copper materials, the fact that the spiral heat exchange plate 32 can better convert the temperature of the double-swirl channel 31 is guaranteed, the heat exchange efficiency is extremely high, the double-swirl channel 31 is spiral, the heat conversion performance of steam is extremely good when the steam passes through the inside of the double-swirl channel 31, the temperature of the spiral heat exchange plate 32 rises rapidly, and the temperature of the heated spiral heat exchange plate 32 is slightly higher than that of the traditional steam after heat exchange. The heat conduction cover 4 is inserted into the main bearing body 1 in a spline connection mode and is connected in a bolt way, a guide bearing 41 is arranged below the heat conduction cover 4, the guide bearing 41 is sleeved on the pump shaft 23, an inner hole of the spiral heat exchange plate 32 is tightly attached to the guide bearing 41, the heat preservation cavity 3 is arranged outside the guide bearing 41, the height of the heat preservation cavity 3 is larger than that of the guide bearing 41, meanwhile, the heat preservation cavity 3 is in a vacuumizing state, the condition that the temperature in the heat preservation cavity 3 is not easy to lose is effectively guaranteed, the heat preservation performance is excellent, the higher use temperature can still be reserved when the double-rotation runner 31 stops steam heating in a short time, the normal operation of the pump on sulfur conveying operation is met, the normal use of the heat preservation cavity is guaranteed under the condition that the heat preservation cavity is stopped briefly in the steam supply process, and the heat preservation cavity is not required to be stopped. The right side of the main bearing body 1 may further be provided with a self-flushing hole 5, where the self-flushing hole 5 communicates with a sliding surface on the inner side of the guide bearing 41, so as to satisfy the use of a flushing lubrication surface of the guide bearing 41 in the working process.

The utility model can increase the flow area of steam through the double cyclone channels 31, is better convenient for the spiral heat exchange plates 32 to exchange heat, ensures that the guide bearing 41 can be quickly heated and used, and has extremely short preheating time; in addition, the vacuum heat preservation cavity 3 and the baffle cavity 21 can carry out double heat preservation on the temperature, prevent heat loss, have excellent heat preservation performance, and effectively ensure that the main bearing body 1 can be rapidly put into use after the steam supply is temporarily stopped. Compared with the prior art, the preheating time for the first use can be shortened, and the preheating is not needed when the pump is stopped for a few minutes for the second time, so that the convenience of the use of the pump is obviously improved, and the practicability is good.

The foregoing is merely illustrative of the present utility model, and the present utility model is not limited thereto, and any person skilled in the art will readily recognize that changes and substitutions are within the scope of the present utility model. Therefore, the protection scope of the utility model should be mainly that of the claims.

Claims

1. A submerged pump slide bearing structure with a thermal insulation jacket, comprising:

2. The submerged pump slide bearing structure with a heat preservation jacket according to claim 1, wherein: the heat preservation cavity is arranged outside the guide bearing, and the height of the heat preservation cavity is larger than that of the guide bearing.

3. The submerged pump slide bearing structure with a heat preservation jacket according to claim 1, wherein: the double-rotation flow channels in the heat preservation cavity are uniformly arranged in a spiral mode, and the spiral heat exchange plates are connected with the pipe wall of the double-rotation flow channels and the main bearing body in a welding mode.

4. A submerged pump slide bearing structure with a thermal insulation jacket according to claim 3, wherein: the double-spiral flow channel is formed by spirally coiling a metal pipe of one passage after being folded in half.

5. The submerged pump slide bearing structure with a heat preservation jacket of claim 4, wherein: the double-rotation flow channel is in a tube shape of a channel, two tube orifices are adjacent, one tube orifice of the double-rotation flow channel is communicated with the air inlet channel, and the other tube orifice of the double-rotation flow channel is communicated with the air outlet channel.

6. A submerged pump slide bearing structure with a thermal insulation jacket according to claim 3, wherein: the heat preservation cavity is in a vacuumizing state.

7. The submerged pump slide bearing structure with a heat preservation jacket according to claim 1, wherein: the double-spiral flow channel, the spiral heat exchange plate and the temperature guide cover are made of copper materials, and the inner holes of the spiral heat exchange plate are clung to the guide bearing.

8. The submerged pump slide bearing structure with a heat preservation jacket according to claim 1, wherein: the right side of the main bearing body is provided with a self-flushing hole which is communicated with the sliding surface on the inner side of the guide bearing.