CN218834480U

CN218834480U - Reaction kettle

Info

Publication number: CN218834480U
Application number: CN202320011200.1U
Authority: CN
Inventors: 魏艺璇; 王国全; 孙挺; 王睿; 木儒豪; 杨凯旭
Original assignee: Xi'an Pump & Valve General Factory Co ltd
Current assignee: Xi'an Pump & Valve General Factory Co ltd
Priority date: 2023-01-04
Filing date: 2023-01-04
Publication date: 2023-04-11
Anticipated expiration: 2033-01-04

Abstract

The application discloses a reaction kettle, which comprises a kettle body and a propeller; a propeller is arranged at the lower end of the kettle body, and a bearing assembly is arranged at the lower part of a shaft body of the propeller; the upper end of the bearing assembly is arranged at the lower end of the connecting frame, the upper end of the connecting frame is arranged on the lower surface of the bottom plate of the kettle body, and the upper end of the shaft body sequentially penetrates through the connecting frame and the bottom plate and then is connected to the impeller assembly; the baffle disc is sleeved on the shaft body and comprises a cylinder body and a disc body, the cylinder body is of a cylindrical structure with openings at two ends, the disc body is of a circular ring surface structure and is arranged in the circumferential direction of the upper part of the cylinder body, and the disc body is positioned in the kettle body; the lower end of the cylinder body extends into the hole on the bottom plate; a mechanical seal is arranged in the connecting frame, and the shaft body penetrates through the mechanical seal; the end part of the flushing liquid input pipe is connected with a liquid inlet of the mechanical seal, and the liquid outlet of the mechanical seal is positioned below a gap formed by the cylinder and the bottom plate. The application has solved the problem that the solid particle piled up bottom the reation kettle among the prior art leads to the mechanical seal of propeller to damage easily.

Description

Reaction kettle

Technical Field

The application belongs to the technical field of propellers, and in particular relates to a reaction kettle.

Background

The reaction kettle can realize the heating, evaporation, cooling and low-speed mixing reaction functions required by the process. The bottom of the large chemical reaction kettle needs to be provided with a propeller with ultra-large flow and low lift, so that the chemical medium in the reaction kettle can be fully reacted, and the efficiency is improved. Because most chemical engineering media contain solid particles and the like, the solid particles are easy to accumulate at the bottom of the reaction kettle, and further the mechanical seal of the propeller is damaged, so that the reaction kettle cannot normally operate.

SUMMERY OF THE UTILITY MODEL

The embodiment of this application has solved among the prior art problem that the solid particle piled up bottom the reation kettle leads to the mechanical seal of propeller to damage easily through providing a reation kettle.

In order to achieve the purpose, the embodiment of the utility model provides a reaction kettle, which comprises a kettle body and a propeller;

the lower end of the kettle body is provided with the propeller, and the propeller comprises a shaft body, a bearing assembly, a connecting frame, an impeller assembly, a mechanical seal, a baffling disc and a flushing liquid input pipe;

the bearing assembly is arranged at the lower part of the shaft body;

the upper end of the bearing assembly is mounted at the lower end of the connecting frame, the upper end of the connecting frame is mounted at the lower surface of the bottom plate of the kettle body, and the upper end of the shaft body sequentially penetrates through the connecting frame and the bottom plate and then is connected to the impeller assembly;

the baffle disc is sleeved on the shaft body and comprises a cylinder body and a disc body, the cylinder body is of a cylindrical structure with openings at two ends, the disc body is of a circular ring surface structure, the disc body is arranged in the circumferential direction of the upper part of the cylinder body, and the disc body is positioned in the kettle body; the lower end of the cylinder body extends into the hole on the bottom plate;

the mechanical seal is arranged in the connecting frame, and the shaft body penetrates through the mechanical seal; the end part of the flushing liquid input pipe is connected with the liquid inlet of the mechanical seal, and the liquid outlet of the mechanical seal is positioned below a gap formed by the cylinder and the bottom plate.

In one possible implementation, the bearing assembly includes a housing, an upper bearing gland, a lower bearing gland, a cylindrical roller bearing, and a tapered roller bearing;

the upper bearing gland is mounted at the upper end of the shell, an upper bearing mounting cavity is formed between the upper end of the shell and the upper bearing gland, and the cylindrical roller bearing is mounted in the upper bearing mounting cavity;

the lower end of the shell is provided with the lower bearing gland, a lower bearing installation cavity is formed between the lower end of the shell and the lower bearing gland, and the tapered roller bearing is installed in the lower bearing installation cavity;

the cylindrical roller bearing and the tapered roller bearing are sleeved on the shaft body.

In a possible implementation manner, the inner wall of the upper bearing gland is provided with a first annular groove, a felt ring is installed in the first annular groove, and the felt ring is abutted against the side wall of the shaft body.

In a possible implementation manner, the upper part of the upper bearing cover is provided with a dust ring.

In one possible implementation, the impeller assembly includes a hub body, an impeller cap, a locking catch, and a blade;

an impeller cap is installed at a mounting hole at the upper end of the hub body, a shaft hole is formed in the lower end of the hub body, the upper end of the shaft body penetrates through the shaft hole and then extends into the hub body and is connected with the locking separation blade, a key is arranged between the shaft body and the hub body, and a sealing ring is arranged between the locking separation blade and the hub body;

the blades are mounted to the side walls of the hub body.

In a possible implementation manner, an annular boss is arranged on the outer side of the lower surface of the tray body, and the inner side wall of the annular boss is obliquely and upwards arranged towards the direction of the shaft body;

the upper surface of the bottom plate is matched with the lower surface of the disc body in structure, and a flushing liquid channel is formed between the upper surface of the bottom plate and the lower surface of the disc body.

In a possible implementation manner, a plurality of diversion trenches are uniformly distributed in the circumferential direction of the lower surface of the tray body, the diversion trenches are arranged at the annular boss, and the diversion trenches extend to the lower surface of the annular boss.

The embodiment of the utility model provides an in one or more technical scheme, following technological effect or advantage have at least:

the embodiment of the utility model provides a reaction kettle, this reaction kettle during operation, the baffling dish is rotatory along with the axis body, form a little clearance between baffling dish and the bottom plate, can last the flush fluid to pour into the clearance between baffling dish and the bottom plate into through the flush fluid input tube, the flush fluid gets into the cauldron internal from the clearance, solid particle hardly gets into mechanical seal from the clearance under the effect of the flush fluid that flows in the medium, and then solved among the prior art problem that the accumulational solid particle in reaction kettle bottom leads to the mechanical seal of propeller to damage easily. And then make the utility model discloses can be applicable to the operating mode of large-traffic, low lift for the transport medium is at the inside abundant circulation flow of reation kettle, makes the reaction more even, further improves the efficiency of chemical industry flow.

Drawings

In order to more clearly illustrate the technical solutions of the embodiments of the present application, the drawings used in the description of the embodiments will be briefly introduced below. It is obvious that the drawings in the following description are only some of the embodiments described in the present application, and that other drawings can be derived from these drawings by a person skilled in the art without inventive effort.

Fig. 1 is a schematic structural diagram of a reaction kettle provided by an embodiment of the present invention.

Fig. 2 is an enlarged view of fig. 1 at a.

Fig. 3 is a schematic structural diagram of a baffle plate according to an embodiment of the present invention.

Fig. 4 is a left side view of fig. 3.

Reference numerals: 1-a bottom plate; 2-a shaft body; 3-a bearing assembly; 31-a housing; 32-upper bearing gland; 33-lower bearing gland; 34-cylindrical roller bearings; 35-tapered roller bearings; 36-a felt ring; 37-dust ring; 4-a connecting frame; 5-an impeller assembly; 51-a hub body; 52-impeller cap; 53-locking the catch; 54-a blade; 6, mechanical sealing; 7-a baffling disc; 71-a cylinder body; 72-a tray body; 73-an annular boss; 74-diversion trench; 8-irrigation solution channel.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are some, but not all, embodiments of the present invention. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.

In the description of the embodiments of the present invention, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, which are only for convenience of describing the embodiments of the present invention and simplifying the description, but do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus, should not be construed as limiting the present invention. The terms "first," "second," and "third" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance. Furthermore, the terms "mounted," "connected," and "coupled" are to be construed broadly and may include, for example, fixed connections, removable connections, or integral connections; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meaning of the above terms in the embodiments of the present invention can be understood by those of ordinary skill in the art according to specific situations.

As shown in fig. 1 to 4, the reaction kettle provided by the embodiment of the present invention comprises a kettle body and a propeller.

The lower extreme of the cauldron body is provided with the propeller, and the propeller includes axis body 2, bearing assembly 3, link 4, impeller subassembly 5, mechanical seal 6, baffling dish 7 and flush fluid input tube.

The lower portion of the shaft body 2 is provided with a bearing assembly 3.

The upper end of bearing assembly 3 is installed in the lower extreme of link 4, and the lower surface in the bottom plate 1 of the cauldron body is installed to the upper end of link 4, and the upper end of axis body 2 is passed link 4 and bottom plate 1 back in proper order and is connected in impeller subassembly 5.

The baffle disc 7 is sleeved on the shaft body 2, the baffle disc 7 comprises a cylinder body 71 and a disc body 72, the cylinder body 71 is of a cylindrical structure with two open ends, the disc body 72 is of a torus structure, the disc body 72 is arranged in the circumferential direction of the upper portion of the cylinder body 71, and the disc body 72 is located in the kettle body. The lower end of the cylinder 71 extends into the hole in the base plate 1.

A mechanical seal 6 is arranged in the connecting frame 4, and the shaft body 2 penetrates through the mechanical seal 6. The end of the flushing liquid input pipe is connected with the liquid inlet of the mechanical seal 6, and the liquid outlet of the mechanical seal 6 is positioned below the gap formed by the cylinder 71 and the bottom plate 1.

The upper end of the cylindrical body 71 is fixed to the shaft body 2 by screws, and the number of screws is plural, and the plural screws are provided in the circumferential direction of the cylindrical body 71. A passage through which the cleaning liquid flows is provided in the mechanical seal 6. Baffling dish 7 is rotatory together along with the axis body 2, forms a little clearance between baffling dish 7 and the bottom plate 1, can last the filling liquid to pour into the clearance between baffling dish 7 and the bottom plate 1 through the flushing liquid input tube, and it is internal that the flushing liquid gets into the cauldron from the clearance, and solid particle is difficult to get into mechanical seal 6 from the clearance under the effect of the flushing liquid that flows in the medium, and then has solved among the prior art problem that 6 damages of mechanical seal that the accumulational solid particle in reation kettle bottom leads to the propeller easily. And then make the utility model discloses can be applicable to the operating mode of large-traffic, low lift for the transport medium is at the inside abundant circulation flow of reation kettle, makes the reaction more even, further improves the efficiency of chemical industry flow.

In the present embodiment, the bearing assembly 3 includes a housing 31, an upper bearing cover 32, a lower bearing cover 33, a cylindrical roller bearing 34, and a tapered roller bearing 35.

An upper bearing cover 32 is mounted at the upper end of the housing 31, an upper bearing mounting cavity is formed between the upper end of the housing 31 and the upper bearing cover 32, and a cylindrical roller bearing 34 is mounted in the upper bearing mounting cavity.

A lower bearing gland 33 is mounted at the lower end of the shell 31, a lower bearing mounting cavity is formed between the lower end of the shell 31 and the lower bearing gland 33, and a tapered roller bearing 35 is mounted in the lower bearing mounting cavity.

The cylindrical roller bearing 34 and the tapered roller bearing 35 are both sleeved on the shaft body 2.

It should be noted that the cylindrical roller bearing 34 is used to receive a force of the shaft body 2 in the radial direction thereof, and the tapered roller bearing 35 is used to receive a force of the shaft body 2 in the axial direction thereof. The cylindrical roller bearing 34 and the tapered roller bearing 35 are both lubricated with grease.

In this embodiment, the inner wall of the upper bearing gland 32 is provided with a first annular groove, a felt 36 is installed in the first annular groove, and the felt 36 abuts against the side wall of the shaft body 2.

It should be noted that, a felt 36 oil seal is additionally arranged between the shaft body 2 and the upper bearing gland 32, so that sundries and dust can be effectively prevented from entering the bearing, and the service life of the bearing is prolonged.

In this embodiment, the upper bearing cap 32 is provided at an upper portion thereof with a dust ring 37.

It should be noted that the lower surface of the dust-proof ring 37 is provided with a sealing ring platform, the sealing ring platform is of an annular structure, and the sealing ring platform is located in a second annular groove on the upper surface of the upper bearing pressure cover 32. The dust ring 37 can further prevent foreign dust from entering the bearing.

In this embodiment, the impeller assembly 5 includes a hub body 51, an impeller cap 52, a locking flap 53, and a blade 54.

An impeller cap 52 is installed at a mounting hole at the upper end of the hub body 51, a shaft hole is arranged at the lower end of the hub body 51, the upper end of the shaft body 2 penetrates through the shaft hole and then extends into the hub body 51 and is connected with a locking blocking piece 53, a key is arranged between the shaft body 2 and the hub body 51, and a sealing ring is arranged between the locking blocking piece 53 and the hub body 51.

The vanes 54 are mounted to the side wall of the hub body 51.

It should be noted that a cavity is provided inside the hub body 51 to facilitate the mounting of the upper part thereof through the mounting hole, and the impeller cap 52 is used to close the mounting hole. A sealing ring is arranged between the matched end surfaces of the locking baffle plate 53 and the hub body 51. The diameter-variable part of the shaft body 2 is clamped at a step hole in the shaft hole, the blade 54 is installed at the installation position of the side wall of the hub body 51, and a bolt passes through the connecting plate from the inside of the hub body 51 and then is screwed into a threaded hole in the blade 54, namely, the blade 54 of the embodiment is adjustable.

In this embodiment, an annular boss 73 is provided on the outer side of the lower surface of the disk body 72, and the inner side wall of the annular boss 73 is inclined upward toward the shaft body 2.

The upper surface of the soleplate 1 and the lower surface of the disc body 72 are matched in structure, and a flushing liquid channel 8 is formed between the upper surface of the soleplate 1 and the lower surface of the disc body 72.

It should be noted that the baffle 7 forms an oblique gap with the bottom plate 1, and the flushing liquid is flushed from bottom to top, so that the problem that solids in the medium enter the mechanical seal 6 is further effectively avoided.

In this embodiment, a plurality of flow guide grooves 74 are uniformly distributed in the circumferential direction of the lower surface of the tray body 72, the flow guide grooves 74 are disposed at the annular boss 73, and the flow guide grooves 74 extend to the lower surface of the annular boss 73.

It should be noted that the guiding gutter 74 is used to accommodate the solid particles at the bottom of the reaction vessel, and the baffle plate 7 and the shaft body 2 rotate together, so that the solid particles are thrown away from the baffle plate 7 by the centrifugal force, thereby further preventing the solid particles in the medium from entering the mechanical seal 6, and providing an excellent working environment for the mechanical seal 6.

In the present embodiment, it is apparent to those skilled in the art that the present invention is not limited to the details of the above-described exemplary embodiments, but can be embodied in other specific forms without departing from the spirit or essential characteristics of the invention. The present embodiments are therefore to be considered in all respects as illustrative and not restrictive, the scope of the invention being indicated by the appended claims rather than by the foregoing description, and all changes which come within the meaning and range of equivalency of the claims are therefore intended to be embraced therein.

Claims

1. A reaction kettle is characterized in that: comprises a kettle body and a propeller;

the lower end of the kettle body is provided with the propeller, and the propeller comprises a shaft body (2), a bearing assembly (3), a connecting frame (4), an impeller assembly (5), a mechanical seal (6), a baffle disc (7) and a flushing liquid input pipe;

the lower part of the shaft body (2) is provided with the bearing assembly (3);

the upper end of the bearing assembly (3) is arranged at the lower end of the connecting frame (4), the upper end of the connecting frame (4) is arranged on the lower surface of the bottom plate (1) of the kettle body, and the upper end of the shaft body (2) sequentially penetrates through the connecting frame (4) and the bottom plate (1) and then is connected with the impeller assembly (5);

the baffling disc (7) is sleeved on the shaft body (2), the baffling disc (7) comprises a cylinder body (71) and a disc body (72), the cylinder body (71) is of a cylindrical structure with openings at two ends, the disc body (72) is of a circular ring surface structure, the disc body (72) is arranged in the circumferential direction of the upper part of the cylinder body (71), and the disc body (72) is located in the kettle body; the lower end of the cylinder (71) extends into a hole on the bottom plate (1);

the mechanical seal (6) is arranged in the connecting frame (4), and the shaft body (2) penetrates through the mechanical seal (6); the end part of the flushing liquid input pipe is connected with a liquid inlet of the mechanical seal (6), and a liquid outlet of the mechanical seal (6) is positioned below a gap formed by the cylinder body (71) and the bottom plate (1).

2. The reactor of claim 1, wherein: the bearing assembly (3) comprises a shell (31), an upper bearing gland (32), a lower bearing gland (33), a cylindrical roller bearing (34) and a tapered roller bearing (35);

the upper bearing gland (32) is mounted at the upper end of the shell (31), an upper bearing mounting cavity is formed between the upper end of the shell (31) and the upper bearing gland (32), and the cylindrical roller bearing (34) is mounted in the upper bearing mounting cavity;

the lower bearing gland (33) is installed at the lower end of the shell (31), a lower bearing installation cavity is formed between the lower end of the shell (31) and the lower bearing gland (33), and the tapered roller bearing (35) is installed in the lower bearing installation cavity;

the cylindrical roller bearing (34) and the tapered roller bearing (35) are sleeved on the shaft body (2).

3. The reactor of claim 2, wherein: the inner wall of the upper bearing gland (32) is provided with a first ring groove, a felt ring (36) is installed in the first ring groove, and the felt ring (36) is abutted against the side wall of the shaft body (2).

4. The reactor of claim 3, wherein: the upper part of the upper bearing gland (32) is provided with a dustproof ring (37).

5. The reactor of claim 1, wherein: the impeller assembly (5) comprises a hub body (51), an impeller cap (52), a locking baffle plate (53) and blades (54);

an impeller cap (52) is installed at a mounting hole at the upper end of the hub body (51), a shaft hole is formed in the lower end of the hub body (51), the upper end of the shaft body (2) penetrates through the shaft hole and then extends into the hub body (51) and is connected with the locking blocking piece (53), a key is arranged between the shaft body (2) and the hub body (51), and a sealing ring is arranged between the locking blocking piece (53) and the hub body (51);

the blades (54) are mounted on the side wall of the hub body (51).

6. The reactor of claim 1, wherein: an annular boss (73) is arranged on the outer side of the lower surface of the disc body (72), and the inner side wall of the annular boss (73) is obliquely and upwards arranged towards the shaft body (2);

the structure of the upper surface of the bottom plate (1) is matched with that of the lower surface of the disc body (72), and a flushing liquid channel (8) is formed between the upper surface of the bottom plate (1) and the lower surface of the disc body (72).

7. The reactor of claim 6, wherein: a plurality of diversion trenches (74) are uniformly distributed in the circumferential direction of the lower surface of the tray body (72), the diversion trenches (74) are arranged at the annular boss (73), and the diversion trenches (74) extend to the lower surface of the annular boss (73).