CN218177543U

CN218177543U - Sealing structure of submersible oxygenation pump

Info

Publication number: CN218177543U
Application number: CN202222263478.6U
Authority: CN
Inventors: 张立
Original assignee: Individual
Current assignee: Individual
Priority date: 2022-08-27
Filing date: 2022-08-27
Publication date: 2022-12-30
Anticipated expiration: 2032-08-27

Abstract

The utility model belongs to dive oxygenation pump field, concretely relates to dive oxygenation pump's seal structure, including air chamber gland, pivot and impeller, the impeller is fixed to be set up at the pivot front end, its characterized in that: the mechanical seal device is characterized by further comprising a mechanical seal cover fixed together with the air chamber cover, a static grinding ring is fixedly arranged at the front end of the mechanical seal cover, and a movable grinding ring is sleeved at the rear end of the rotating shaft. The utility model discloses can effectively improve the life of impeller pivot, reduce use cost, the maintenance is simple and convenient.

Description

Sealing structure of submersible oxygenation pump

Technical Field

The utility model belongs to dive oxygenation pump field, concretely relates to dive oxygenation pump's seal structure.

Background

The submersible aeration oxygenation pump can suck air into water, and enables oxygen in the air to be fully mixed with the water so as to be dissolved into the water, thereby realizing the effect of increasing the oxygen content of the water, and being widely applied to the fields of fishpond culture, sewage treatment and the like.

In an oxygenation pump structure adopted by the existing submersible plug-flow aerator, a mechanical oil seal is usually adopted between a rotating shaft and an air chamber gland to realize sealing so as to prevent water from being poured into a shell to influence the normal operation of equipment. For example, chinese patent publication No. CN106359244 discloses a submersible aerator, which is sealed by a mechanical oil seal. However, the mechanical oil seal is sealed by circumferential hard friction between the inner circumference of the oil seal and the outer wall of the shell, and in the using process of equipment, the circumferential hard friction has a high wear rate, so that the service life of the equipment is greatly reduced, and meanwhile, the shaft power of the motor is increased, so that the energy loss is increased, and the maintenance cost is high.

Disclosure of Invention

An object of the utility model is to overcome the not enough of prior art, provide a seal structure of dive aeration oxygenation pump, can effectively improve the life of impeller pivot, reduce use cost, the maintenance is simple and convenient.

The utility model provides a technical scheme that its technical problem adopted is: the utility model provides a seal structure of dive oxygenation pump, includes air chamber gland, pivot and impeller, the impeller is fixed to be set up at the pivot front end, its characterized in that: the mechanical seal device is characterized by further comprising a mechanical seal gland fixed with the air chamber gland, a static grinding ring is fixedly arranged at the front end of the mechanical seal gland, and a movable grinding ring is sleeved at the rear end of the rotating shaft.

Furthermore, the front end of the movable grinding ring is connected with an extrusion device, and the extrusion device can extrude the rear end face of the movable grinding ring and the front end face of the static grinding ring together.

Furthermore, the extrusion device comprises a spring and a fixing ring, wherein the front end of the spring is fixed with the fixing ring, and the rear end of the spring is fixed with the movable grinding ring.

Further, an air chamber cavity is formed in the rear portion of the air chamber gland, an air inlet hole is formed in the side wall of the air chamber cavity, and the mechanical seal gland is fixedly arranged in the air chamber cavity and does not shield the air inlet hole.

Furthermore, the front wall of the air chamber cavity is provided with a mounting seat which does not shield the air inlet, and the mechanical seal gland is fixedly connected with the mounting seat.

Furthermore, fixed cover is equipped with the location axle sleeve in the pivot in solid fixed ring the place ahead, the inside fixed wear-resisting cover that is provided with of front end of air chamber gland, the external diameter of location axle sleeve and the internal diameter clearance fit of wear-resisting cover.

Compared with the prior art, the beneficial effects of the utility model are that:

1. the utility model discloses utilize quiet grinding ring and move the plane seal between the grinding ring and replace current mechanical type oil blanket, realize better sealed effect through improving relevant structure, improved impeller, pivot and the holistic life of equipment simultaneously greatly, effectively reduce shaft power and energy loss, reduced use cost and cost of maintenance.

2. The utility model discloses a fixed cover of pivot front end is equipped with the axle sleeve, and the inside fixed wear-resisting cover that is provided with of front end of air chamber gland has increased the holistic stability of pivot through the clearance fit of axle sleeve with wear-resisting cover, has further reduced the axle power when pivot rotates, improves the availability factor.

Drawings

FIG. 1 is a schematic view of the present invention;

FIG. 2 is a schematic diagram of the exploded structure of FIG. 1;

FIG. 3 is a schematic view of the structure of the machine sealing cover in FIG. 2 in the direction A;

fig. 4 is a schematic view of the structure of the air chamber cover in fig. 2 in the direction of B.

Labeled in the figure as:

1. a gas chamber gland; 11. a plenum chamber; 12. a mounting seat; 2. a rotating shaft; 3. an impeller; 4. a mechanical seal gland; 51. a static grinding ring; 52. moving a grinding ring; 53. a fixing ring; 54. a spring; 6. an air inlet; 7. positioning the shaft sleeve; 8. a wear-resistant sleeve.

Detailed Description

The invention is further described with reference to the following embodiments:

as shown in fig. 1-2, the utility model provides a sealing structure of submersible oxygenation pump, which comprises an air chamber gland 1, a rotating shaft 2 and an impeller 3, wherein the impeller 3 is fixedly arranged at the front end of the rotating shaft 2. An air chamber cavity 11 is formed in the rear portion of the air chamber gland 1, an air inlet 6 is formed in the side wall of the air chamber cavity 11, and an installation seat 12 is fixedly arranged on the front wall of the air chamber cavity 11. The air inlet sealing device further comprises a mechanical sealing gland 4, the mechanical sealing gland 4 and the mounting seat 12 are fixed together through bolts, and the mounting seat 12 and one end of the mechanical sealing gland 4 facing the air inlet 6 are both cut so as not to shield the air inlet 6 (as shown in figures 3 and 4).

Still include the machine gland lid 4 fixed together with air chamber gland 1, the fixed quiet mill ring 51 that is provided with in machine gland lid 4 front end, location 7 rear end covers is equipped with moves the mill ring 52, it is connected with extrusion device to move the mill ring 52 front end, extrusion device can be with moving the rear end face of mill ring 52 and the preceding terminal surface extrusion of quiet mill ring 51 and paste tightly together. The pressing device comprises a spring 54 and a fixed ring 53, wherein the front end of the spring 54 is fixed with the fixed ring 53, and the rear end of the spring 54 is fixed with the movable grinding ring 52. The fixed cover is equipped with axle sleeve 7 on the pivot 2 in solid fixed ring 53 the place ahead, and the front end of air chamber gland 1 is inside to be fixed to be provided with wear-resisting cover 8, also calls the water bearing, the external diameter of axle sleeve 7 and the internal diameter clearance fit of wear-resisting cover 8.

The mechanical seal gland 1, the air chamber gland 4, the rotating shaft 2, the positioning shaft sleeve 7, the wear-resistant sleeve 8, the static grinding ring 51, the dynamic grinding ring 52, the fixed ring 53 and the spring 54 are coaxially arranged.

The present embodiment regards the direction toward the impeller 3 as the front, and conversely, as the rear.

The working principle and the technical effect of the embodiment are as follows:

the mechanical seal gland 4 is fixed together with the mounting seat 12 of the air chamber gland 1, the movable grinding ring 52 at the rear end of the rotating shaft 2 is tightly attached to the static grinding ring 51 in the mechanical seal gland 4 under the extrusion action of the spring 54, the movable grinding ring and the static grinding ring are sealed through the circular ring mirror surface contact, the sealing effect can be effectively guaranteed, and the friction force between the rotating shaft 2 and the air chamber gland 1 is greatly reduced, so that the service life of each part and the whole equipment is effectively prolonged, the shaft power is reduced, the use cost is reduced, the maintenance and replacement of the mechanical seal are simple, convenient and easy to operate, and the subsequent maintenance cost is greatly reduced. The positioning shaft sleeve 7 at the front end of the rotating shaft 2 is in clearance fit with the wear-resistant sleeve 8 at the front end of the air chamber gland 1, so that a support is provided for the fixing ring 53, and the overall stability of the rotating shaft 2 during rotation is improved.

While the invention has been described with reference to a preferred embodiment, it will be understood by those skilled in the art that various changes in form and details may be made therein without departing from the spirit and scope of the invention. However, any simple modification, equivalent change and modification of the above embodiments according to the technical spirit of the present invention are possible without departing from the technical contents of the present invention.

Claims

1. The utility model provides a seal structure of dive oxygenation pump, includes air chamber gland, pivot and impeller, the impeller is fixed to be set up at the pivot front end, its characterized in that: the mechanical seal device is characterized by further comprising a mechanical seal cover fixed together with the air chamber cover, a static grinding ring is fixedly arranged at the front end of the mechanical seal cover, and a movable grinding ring is sleeved at the rear end of the rotating shaft.

2. A sealing structure of a submersible oxygenation pump according to claim 1, characterised in that: the front end of the movable grinding ring is connected with an extruding device, and the extruding device can extrude the rear end face of the movable grinding ring and the front end face of the static grinding ring together.

3. The sealing structure of a submersible oxygenation pump according to claim 2, characterised in that: the extrusion device comprises a spring and a fixing ring, wherein the front end of the spring is fixed with the fixing ring, and the rear end of the spring is fixed with the movable grinding ring.

4. A sealing structure of a submersible oxygenation pump according to claim 1 or 3, characterised in that: the rear portion of the air chamber gland is provided with an air chamber cavity, the side wall of the air chamber cavity is provided with an air inlet hole, and the mechanical seal gland is fixedly arranged in the air chamber cavity and does not shield the air inlet hole.

5. The seal structure of a submersible oxygenation pump according to claim 4, characterized in that: the front wall of the air chamber cavity is provided with a mounting seat which does not shield the air inlet, and the mechanical seal gland is fixedly connected with the mounting seat.

6. A sealing structure of a submersible oxygenation pump according to claim 3, characterised in that: the fixed cover in solid fixed ring the place ahead is equipped with the location axle sleeve in the pivot, the front end inside fixed wear-resisting cover that is provided with of air chamber gland, the external diameter of location axle sleeve and the internal diameter clearance fit of wear-resisting cover.