CN216260478U

CN216260478U - Side-feeding type mixer integrated mechanical sealing structure

Info

Publication number: CN216260478U
Application number: CN202122557785.0U
Authority: CN
Inventors: 佟毅; 孙振江; 吕海全; 罗虎; 祁海艳; 黄允升; 吕闯; 樊立莹; 吴丽娟; 李永恒; 苏云; 赖铭雪; 鲁佰成; 李海浪; 邓翠
Original assignee: Guangxi Cofco Bio Energy Co ltd
Current assignee: Guangxi Cofco Bio Energy Co ltd
Priority date: 2021-10-22
Filing date: 2021-10-22
Publication date: 2022-04-12
Anticipated expiration: 2031-10-22

Abstract

The utility model provides a side-feeding type mixer cartridge mechanical sealing structure, which belongs to the technical field of biochemical equipment and comprises a mechanical sealing seat, a mechanical seal, an oil seal and two sets of deep groove ball bearings, wherein the mechanical sealing seat is provided with a central hole, a bearing chamber, an oil chamber and a sealing chamber are sequentially arranged in the central hole, and the mechanical sealing seat is provided with an oil injection hole and a flushing hole which are communicated with the oil chamber; the mechanical seal is packaged at one end of the seal chamber far away from the oil chamber; the oil seal is packaged at one end of the sealing chamber close to the oil chamber; two sets of deep groove ball bearings are mutually depended and arranged in the bearing chamber. According to the side-feeding mixer cartridge type mechanical sealing structure provided by the utility model, two sets of deep groove ball bearings are arranged, so that the swinging of equipment during operation can be eliminated, the abrasion of the bearings and the mechanical seal is reduced, the service life of the equipment is prolonged, a stable production environment is provided, the effects of reducing the manufacturing cost and the maintenance workload are achieved, the frequency of environmental pollution caused by leakage is reduced, and the reduction of the production cost of enterprises is facilitated.

Description

Side-feeding type mixer integrated mechanical sealing structure

Technical Field

The utility model belongs to the technical field of biochemical equipment, and particularly relates to a side-feeding type mixer integrated mechanical sealing structure.

Background

The fermentation tank for alcohol is a device for mechanically stirring and fermenting materials, and is widely applied to the industries of beverage, chemical industry, food, dairy products, condiments, wine brewing, pharmacy and the like, and plays a role in fermentation. The components of the fermentation tank include: the tank body is mainly used for culturing and fermenting various thalli, has good sealing performance (preventing the thalli from being polluted), and is internally provided with a stirring shaft for stirring continuously in the fermentation process; along with the increase of material liquid level in the jar, when equipment moves, the (mixing) shaft can receive the pressure of different degree and take place the swing, produces slight swing during the operation, and long-time the use can produce the machine seal face wearing and tearing and leak. The mechanical seal is worn and leaked, and the bearing and the mechanical seal need to be replaced 3-4 times per year. Taking 32 side-feeding mixers in an alcohol fermentation workshop as an example, the cost of replacing mechanical seals is 80-90 ten thousand per year, the production, operation and maintenance cost is high, the labor intensity of maintenance is high, the cost is a great expense for enterprises, and the control of the production cost of the enterprises is not facilitated.

SUMMERY OF THE UTILITY MODEL

The utility model aims to provide a side-feeding type mixer cartridge type mechanical sealing structure which can prolong the service life of a mechanical seal and reduce the maintenance frequency and the maintenance cost.

In order to achieve the above object, an embodiment of the present invention provides a side-entry mixer cartridge type mechanical seal structure, including: the mechanical seal comprises a mechanical seal seat, a mechanical seal, an oil seal and two sets of deep groove ball bearings, wherein the mechanical seal seat is provided with a central hole, a bearing chamber, an oil chamber and a sealing chamber are sequentially arranged in the central hole, and an oil injection hole and a flushing hole which are communicated with the oil chamber are formed in the mechanical seal seat; the mechanical seal is packaged at one end of the seal chamber far away from the oil chamber; the oil seal is packaged at one end of the sealing chamber close to the oil chamber; and the two sets of deep groove ball bearings are mutually depended and arranged in the bearing chambers.

In one possible implementation manner, the diameter of the bearing chamber is larger than that of the oil chamber, and an end surface of the oil chamber, which is connected with the bearing chamber, forms a first limiting step for limiting the deep groove ball bearing.

In a possible implementation manner, the sealing chamber comprises a mechanical sealing chamber and an oil sealing chamber, the diameter of the mechanical sealing chamber is larger than that of the oil sealing chamber, and the connected end surfaces of the mechanical sealing chamber and the oil sealing chamber form a third limiting step for limiting the mechanical seal.

In a possible implementation manner, the diameter of the oil chamber is smaller than that of the oil seal chamber, and an end surface where the oil chamber and the oil seal chamber are connected forms a second limiting step for limiting the oil seal.

In a possible realization, the diameter of the bearing chamber is the largest and the diameter of the oil chamber is the smallest; the machine seal seat comprises a large-diameter section and a small-diameter section, the large-diameter section corresponds to the bearing chamber and the oil chamber, and the small-diameter section corresponds to the seal chamber; the outer diameter of the large-diameter section is larger than that of the small-diameter section.

In one possible implementation, the oil injection hole and the flushing hole are arranged in the large-diameter section corresponding to the bearing chamber.

In a possible implementation manner, the oil injection hole and the flushing hole are arranged in an axial symmetry mode by taking the center line of the machine seal seat as an axis.

In one possible implementation, the inner diameter of the deep groove ball bearing is smaller than the inner diameter of the oil chamber.

In a possible implementation manner, an avoiding cavity extending towards the oil chamber is arranged on the end face of the first limiting step, and the avoiding cavity is communicated between an inner sleeve and an outer sleeve of the deep groove ball bearing.

In one possible implementation, the flushing orifice outlet is arranged on the evacuation chamber.

The utility model provides a side-feeding type mixer packaging type mechanical sealing structure, which has the beneficial effects that: compared with the prior art, the side-feeding type mixer container type mechanical sealing structure provided by the utility model is provided with the two sets of deep groove ball bearings, so that the swinging of equipment during operation can be eliminated, the abrasion of the bearings and the mechanical seal is reduced, the service life of the equipment is prolonged, a stable production environment is provided, the effects of reducing the manufacturing cost and the maintenance workload are achieved, the frequency of environmental pollution caused by leakage is reduced, and the reduction of the production cost of enterprises is facilitated.

Drawings

In order to more clearly illustrate the technical solutions in the embodiments of the present invention, the drawings needed for the embodiments or the prior art descriptions will be briefly described below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and it is obvious for those skilled in the art to obtain other drawings without creative efforts.

FIG. 1 is a schematic structural view of a side-entry mixer integrated mechanical seal structure used in an embodiment of the present invention;

in the figure: 1. a machine seal seat; 2. a seal ring; 3. a mechanical seal chamber; 4. an oil seal chamber; 5. an oil chamber; 6. flushing the hole; 7. an avoidance cavity; 8. a bearing chamber; 9. a deep groove ball bearing; 10. and an oil filling hole.

Detailed Description

In order to make the technical problems, technical solutions and advantageous effects to be solved by the present invention more clearly apparent, the present invention is further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the utility model and are not intended to limit the utility model.

A specific embodiment of the packaging type mechanical sealing structure of the side-entry mixer shown in fig. 1 comprises a mechanical seal seat 1, a mechanical seal, an oil seal and two sets of deep groove ball bearings 9, wherein the mechanical seal seat 1 is provided with a central hole, a bearing chamber 8, an oil chamber 5 and a sealing chamber are sequentially arranged in the central hole, and an oil injection hole 10 and a flushing hole 6 which are communicated with the oil chamber 5 are arranged on the mechanical seal seat 1; the mechanical seal is sealed and packaged at one end of the seal chamber far away from the oil chamber 5; the oil seal is packaged at one end of the sealing chamber close to the oil chamber 5; two sets of deep groove ball bearings 9 are mutually depended and arranged in the bearing chamber 8.

Compared with the prior art, the container type mechanical sealing structure of the side-feeding type stirrer provided by the utility model has the following effects: (1) the two sets of deep groove ball bearings 9 are arranged, so that the swinging of equipment during operation can be eliminated, the abrasion of the bearings and mechanical seals is reduced, the service life of the equipment is prolonged, the service life is prolonged, and a stable production environment is provided; (2) the effects of reducing the manufacturing cost and the overhauling workload are achieved, the maintenance frequency is reduced, the labor intensity of overhauling workers is reduced, and the production cost of enterprises is favorably reduced; (3) reduces the frequency of environmental pollution caused by leakage and lightens the workload of sanitary cleaning. Compared with the background technology, the cost of the cartridge mechanical seal can be saved by 7200 yuan/set × 8 × 4 sets/set × 2 times each year, 46.08 ten thousand yuan.

As a modified embodiment, as shown in fig. 1, the diameter of the bearing chamber 8 is larger than that of the oil chamber 5, and the end surface of the oil chamber 5 in contact with the bearing chamber 8 constitutes a first limit step of the limit deep groove ball bearing 9. The deep groove ball bearing 9 is limited through the first limiting step, the assembling difficulty is reduced, and the deep groove ball bearing 9 is convenient to position.

As a modified embodiment, as shown in fig. 1, the sealing chamber comprises a mechanical sealing chamber 3 and an oil sealing chamber 4, the diameter of the mechanical sealing chamber 3 is larger than that of the oil sealing chamber 4, and the end surface of the mechanical sealing chamber 3, which is connected with the oil sealing chamber 4, forms a third limiting step for limiting the mechanical seal. The mechanical seal is limited by the third limiting step, so that the assembling difficulty is reduced, and the mechanical seal is convenient to position.

As a modified embodiment, as shown in fig. 1, the diameter of the oil chamber 5 is smaller than that of the oil seal chamber 4, and the end surface where the oil chamber 5 and the oil seal chamber 4 meet constitutes a second limit step of the limit oil seal. By the same principle, the installation and the positioning of the oil seal are facilitated, the sealing reliability is improved and the abrasion is reduced through the accuracy of the positions of all the parts.

As a modified embodiment, as shown in fig. 1, the diameter of the bearing chamber 8 is the largest, and the diameter of the oil chamber 5 is the smallest; the mechanical seal seat 1 comprises a large-diameter section and a small-diameter section, wherein the large-diameter section corresponds to the bearing chamber 8 and the oil chamber 5, and the small-diameter section corresponds to the seal chamber; the outer diameter of the large-diameter section is larger than that of the small-diameter section. Wherein, be equipped with two seal grooves on the outer circumference of path section, be equipped with sealing washer 2 in the seal groove.

As a modified embodiment, as shown in fig. 1, the oil injection hole 10 and the flushing hole 6 are provided in the large diameter section corresponding to the bearing chamber 8. The outer diameter of the machine seal seat 1 corresponding to the bearing chamber 8 is large, the thickness is large, the oil filling hole 10 and the flushing hole 6 are convenient to arrange, and meanwhile, the gravity center of the machine seal seat 1 can be balanced due to the arrangement of the oil filling hole 10 and the flushing hole 6, so that the concentric force of the operation of the stirring shaft is facilitated.

As a modified embodiment, as shown in fig. 1, the oil injection hole 10 and the flushing hole 6 are arranged axisymmetrically with respect to the center line of the engine seal holder 1. The oil filler point 10 and the flushing hole 6 are symmetrically arranged outside the position corresponding to the oil chamber 5, so that the concentricity of the stirring shaft during operation can be improved, and the problem that the bearing and the mechanical seal are abraded due to the swinging generated by the rotation of the stirring shaft is solved.

Based on the above-described structures of the bearing chamber 8, the oil chamber 5, and the seal chamber, as a modified embodiment, as shown in fig. 1, the inner diameter of the deep groove ball bearing 9 is smaller than the inner diameter of the oil chamber 5. So as to facilitate the removal of the bearing from the oil seal chamber 4 side.

As a modified embodiment, as shown in fig. 1, an avoidance cavity 7 extending towards the oil chamber 5 is arranged on the end surface of the first limit step, and the avoidance cavity 7 is communicated between an inner sleeve and an outer sleeve of the deep groove ball bearing 9. Lubricating oil enters the deep groove ball bearing 9 through the oil chamber 5 and the avoidance cavity 7 through the oil filling hole 10, and lubrication is carried out on the bearing.

As a modified embodiment, as shown in fig. 1, the outlet of the flushing hole 6 is arranged on the avoidance cavity 7. The position of the avoiding cavity 7 is a dead angle, the flushing hole 6 is arranged in the avoiding cavity 7, the interior of the oil chamber 5 can be cleaned, and the problems that the bearing is abraded and cannot rotate flexibly due to dirt deposited at the dead angle are solved. Wherein, the flushing hole 6 and the oil filling hole 10 are sealed by plugging and screwing.

The mechanical seal structure provided by the embodiment can be an improvement on the original mechanical seal structure, and specifically comprises the following steps: (1) deeply digging and processing the bearing position of the machine seal seat 1 by 16.5mm towards the mechanical seal direction to ensure that the e bearing position meets the space for installing two sets of deep groove ball bearings 9; the deep groove ball bearing 9 is used for replacing a self-aligning ball bearing, so that the concentricity of the stirrer shaft during working can be improved.

(2) Plugging a flushing hole 6 at the lower end of the mechanical seal seat 1, and drilling a flushing hole 67 again at a position 20mm in the mechanical seal direction to be communicated with an oil chamber 5; the flushing hole 6 and the oil filling hole 10 are symmetrically arranged;

(3) finally, the integrated mechanical seal is arranged on the main shaft of the stirrer.

The mechanical seal structure that this embodiment provided, with all parts equipment installations back of above-mentioned collection dress formula mechanical seal, can improve agitator shaft during operation concentricity, avoid making bearing and mechanical seal wearing and tearing because of the swing that the (mixing) shaft rotated the production, thereby extension bearing and mechanical seal's life, thereby production is stable reduces maintenance work load, reduces manufacturing cost, has reduced environmental pollution's frequency.

The above description is only for the purpose of illustrating the preferred embodiments of the present invention and is not to be construed as limiting the utility model, and any modifications, equivalents and improvements made within the spirit and principle of the present invention are intended to be included within the scope of the present invention.

Claims

1. Side entry mixer cartridge-type mechanical seal structure, its characterized in that includes:

the mechanical seal seat (1) is provided with a central hole, a bearing chamber (8), an oil chamber (5) and a sealing chamber are sequentially arranged in the central hole, and an oil filling hole (10) and a flushing hole (6) which are communicated with the oil chamber (5) are formed in the mechanical seal seat (1);

the mechanical seal is sealed at one end of the seal chamber, which is far away from the oil chamber (5);

the oil seal is packaged at one end of the sealing chamber close to the oil chamber (5); and

and the two sets of deep groove ball bearings (9) are mutually depended and arranged in the bearing chamber (8).

2. A side entry mixer container type mechanical seal structure according to claim 1, wherein the diameter of the bearing chamber (8) is larger than the diameter of the oil chamber (5), and the end surface of the oil chamber (5) in contact with the bearing chamber (8) constitutes a first stopper step for stopping the deep groove ball bearing (9).

3. The side-entry mixer container-type mechanical seal structure of claim 2, wherein the seal chamber comprises a mechanical seal chamber (3) and an oil seal chamber (4), the diameter of the mechanical seal chamber (3) is greater than that of the oil seal chamber (4), and the connected end faces of the mechanical seal chamber (3) and the oil seal chamber (4) form a third limiting step for limiting the mechanical seal.

4. A side-entry mixer container type mechanical seal structure according to claim 3, wherein the diameter of the oil chamber (5) is smaller than the diameter of the oil seal chamber (4), and the end surface where the oil chamber (5) and the oil seal chamber (4) meet constitutes a second limit step for limiting the oil seal.

5. A side entry mixer packaging mechanical seal according to claim 4, characterised in that the diameter of the bearing chamber (8) is the largest and the diameter of the oil chamber (5) is the smallest; the machine seal seat (1) comprises a large-diameter section and a small-diameter section, the large-diameter section corresponds to the bearing chamber (8) and the oil chamber (5), and the small-diameter section corresponds to the sealing chamber; the outer diameter of the large-diameter section is larger than that of the small-diameter section.

6. A side entry mixer packaging mechanical seal according to claim 5, wherein said oil injection hole (10) and said flushing hole (6) are provided in said large diameter section corresponding to said bearing housing (8).

7. A side entry mixer packaging mechanical seal according to claim 1, wherein said oil injection hole (10) and said flushing hole (6) are arranged axisymmetrically with respect to the centerline of said machine seal holder (1).

8. A side entry blender container mechanical seal according to claim 1, characterised in that the inner diameter of the deep groove ball bearing (9) is smaller than the inner diameter of the oil chamber (5).

9. A side entry mixer container type mechanical seal structure as in any of claims 2 to 6, wherein an avoidance chamber (7) extending in the direction of the oil chamber (5) is provided at the end face of the first limit step, and the avoidance chamber (7) communicates between the inner sleeve and the outer sleeve of the deep groove ball bearing (9).

10. A side entry mixer packaging mechanical seal according to claim 9, wherein the flushing port (6) outlet is provided on the bypass chamber (7).