CN217002379U

CN217002379U - Auxiliary sealing device suitable for circulating water pump bearing box

Info

Publication number: CN217002379U
Application number: CN202220607456.4U
Authority: CN
Inventors: 张辉; 刘光宗; 李玉东; 宋鹏; 王子峰
Original assignee: Lihuayi Lijin Refining and Chemical Co Ltd
Current assignee: Lihuayi Lijin Refining and Chemical Co Ltd
Priority date: 2022-03-18
Filing date: 2022-03-18
Publication date: 2022-07-19
Anticipated expiration: 2032-03-18

Abstract

The utility model relates to the technical field of water pumps, and discloses an auxiliary sealing device suitable for a circulating water pump bearing box, which comprises a sealing movable ring and a sealing static ring, wherein the sealing movable ring is rotatably sleeved at the center of the sealing static ring, a pair of fastening bolts are symmetrically designed on the outer side of the sealing static ring, a pair of screw holes are symmetrically designed on the side of the sealing movable ring away from the sealing static ring, a clamping ring is arranged on the outer wall of the sealing movable ring, a clamping groove clamped with the clamping ring is formed in the upper wall of the sealing static ring, the clamping ring is rotatably clamped in the clamping groove, sealing structures are designed on the inner side and the outer side of the clamping groove wall, a sealing structure is designed on the lower wall of the sealing static ring, and a sealing structure is designed on the inner wall of the sealing movable ring. The utility model adopts a combined sealing structure, can prevent water splashed from the filler of the circulating water pump from entering the bearing box, greatly prolongs the service life of the bearing, and ensures the normal operation of the circulating water pump.

Description

Auxiliary sealing device suitable for circulating water pump bearing box

Technical Field

The utility model relates to the technical field of water pumps, in particular to an auxiliary sealing device suitable for a bearing box of a circulating water pump.

Background

In petrochemical industry device, there are many high temperature equipment that need the circulating water to cool off the temperature, and circulating water system's stability plays important effect to the steady operation of device, and the circulating water in the device mainly relies on circulating water pump to promote the flow as power, and circulating water pump's steady operation is the assurance of whole production system continuous operation. The general flow of circulating water pump is big, and power is high, and most adopt packing seal, when the increase of the sealed leakage rate of packing, the circulating water can be along a large amount of blowout of packing, the water of revealing can be along axle or bearing box gland entering bearing box in, traditional skeleton oil blanket does not have fine sealed effect to this, the damage of bearing can be accelerated in the water entering bearing box, seriously influences the life of bearing, causes the damage of pump, and then influences whole apparatus for producing's normal operating.

SUMMERY OF THE UTILITY MODEL

The utility model aims to overcome the defects in the prior art and provide an auxiliary sealing device suitable for a circulating water pump bearing box.

In order to realize the purpose, the technical scheme of the utility model is as follows: the utility model provides an auxiliary seal device suitable for circulating water pump bearing box which characterized in that: including sealed rotating ring and sealed quiet ring, sealed quiet ring rotates with sealed rotating ring and cup joints, sealed rotating ring rotates and cup joints at sealed quiet ring center, sealed quiet ring outside symmetry design has a pair of fastening bolt, sealed rotating ring keeps away from sealed quiet ring lateral symmetry design and has a pair of screw hole, sealed rotating ring outer wall is equipped with the snap ring, sealed quiet ring upper wall is equipped with the draw-in groove with the snap ring joint, the snap ring rotates the joint in the draw-in groove, the draw-in groove wall inside and outside all designs has seal structure, and sealed quiet ring lower wall design has seal structure, sealed rotating ring inner wall design has seal structure.

Further, the method comprises the following steps of; the sealing structure of the inner wall of the sealing movable ring comprises a first sealing ring and a second sealing ring.

Further, the step of; the sealing structure on the inner side of the wall of the clamping groove is a third sealing ring, and the sealing structure on the outer side of the wall of the clamping groove is labyrinth sealing.

Further, the method comprises the following steps of; and the sealing structure for sealing the lower wall of the static ring is a fourth sealing ring.

The utility model has the beneficial effects that:

(1) the utility model adopts the combined sealing structure, can prevent water splashed from the filler of the circulating water pump from entering the bearing box, greatly prolongs the service life of the bearing, and ensures the normal operation of the circulating water pump.

(2) The first fluorine rubber sealing ring and the second fluorine rubber sealing ring have a sealing effect on water which is splashed from the filling material and flows along the axial direction.

(3) The third fluorine rubber sealing ring and the labyrinth seal have good sealing effect on water splashed from the packing on the joint surface of the movable sealing ring and the static sealing ring.

(4) Water splashed on the bearing gland by the water pump packing easily flows into the bearing box, and the fourth fluorine rubber sealing ring at the contact part of the sealing static ring and the bearing box gland has a good sealing effect on the water splashed on the bearing gland.

Drawings

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

fig. 2 is a cross-sectional view of the present invention.

In the figure: 1. sealing the movable ring; 2. sealing the static ring; 3. screw holes; 4. a first fluororubber seal ring; 5. a second fluorine rubber sealing ring; 6. a fourth fluorine rubber sealing ring; 7. a third fluorine rubber sealing ring; 8. fastening a bolt; 9. a snap ring; 10. and (4) labyrinth sealing.

Detailed Description

Example (b):

as shown in fig. 1 and 2, an auxiliary sealing device suitable for circulating water pump bearing box, including sealed rotating ring 1 and sealed quiet ring 2, sealed quiet ring 2 rotates with sealed rotating ring 1 and cup joints, sealed rotating ring 1 rotates and cup joints at sealed quiet ring 2 center, sealed quiet ring 2 outside symmetrical design has a pair of fastening bolt 8, sealed rotating ring 1 keeps away from sealed quiet ring 2 side symmetrical design and has a pair of

screw hole

3, 1 outer wall of sealed rotating ring is equipped with snap ring 9, sealed quiet ring 2 upper wall is equipped with the draw-in groove with snap ring 9 joint, snap ring 9 rotates the joint in the draw-in groove, the inboard third rubber sealing circle 7 that has inlayed of snap ring wall, the inseparable butt of third rubber sealing circle 7 and snap ring 9, the design of the draw-in groove wall outside has labyrinth 10. The lower wall of the static sealing ring 2 is embedded with a fourth fluorine rubber sealing ring 6. The inner wall of the sealing movable ring 1 is embedded with a first fluorine rubber sealing ring 4 and a second fluorine rubber sealing ring 5.

The working principle is as follows: the static sealing ring 2 is contacted with a gland of a bearing box, then fastening bolts 8 at two sides are symmetrically screwed to fasten the static sealing ring 2 on the gland of the bearing box, then the dynamic sealing ring 1 is fastened on a pump shaft through screws which pass through screw holes 3, when a water pump runs, the dynamic sealing ring 1 and the static sealing ring 2 rotate relatively, a first fluorine rubber sealing ring 4 and a second fluorine rubber sealing ring 5 can seal water which is leaked from a filler and flows along the axial direction, a fourth fluorine rubber sealing ring 6 can seal radial water which flows downwards from the filler and flows along the gland of the bearing box, a third fluorine rubber sealing ring 7 and a labyrinth seal 10 can seal water flow which splashes between the joint surfaces of the dynamic sealing ring 1 and the static sealing ring 2, even if a small amount of water flow enters the inner ring of the dynamic sealing ring 1 along the contact position of the dynamic sealing ring 1 and the static sealing ring 2, the second fluorine rubber sealing ring 5 can play a sealing role, this scheme is at the operation in-process of pump, even the filler lets out leakage quantity increase, the water of splash can not get into in the bearing box yet, very big extension the life of bearing, can guarantee the normal continuous operation of pump, have fine use value and economic value.

The above-described embodiments are merely preferred embodiments of the present invention, which is not intended to be limiting in any way, and other variations and modifications are possible without departing from the scope of the utility model as set forth in the appended claims.

In the description of the present invention, it is to be understood that the terms indicating an orientation or positional relationship are based on the orientation or positional relationship shown in the drawings only for the convenience of describing the present invention and simplifying the description, and 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.

Claims

1. The utility model provides an auxiliary seal device suitable for circulating water pump bearing box which characterized in that: including sealed rotating ring (1) and sealed quiet ring (2), sealed quiet ring (2) rotate with sealed rotating ring (1) and cup joint, sealed rotating ring (1) rotates to cup joint at sealed quiet ring (2) center, sealed quiet ring (2) outside symmetry design has a pair of fastening bolt (8), sealed rotating ring (1) is kept away from sealed quiet ring (2) side symmetry design and is had a pair of screw hole (3), sealed rotating ring (1) outer wall is equipped with snap ring (9), sealed quiet ring (2) upper wall is equipped with the draw-in groove with snap ring (9) joint, snap ring (9) rotate the joint in the draw-in groove, the inside and outside of snap ring groove wall all designs there is seal structure, and sealed quiet ring (2) lower wall design has seal structure, sealed rotating ring (1) inner wall design has seal structure.

2. The auxiliary sealing device for the bearing box of the circulating water pump as claimed in claim 1, wherein: the sealing structure of the inner wall of the sealing movable ring (1) comprises a first sealing ring (4) and a second sealing ring (5).

3. The auxiliary sealing device for the bearing box of the circulating water pump as claimed in claim 1, wherein: the sealing structure on the inner side of the wall of the clamping groove is a third sealing ring (7), and the sealing structure on the outer side of the wall of the clamping groove is a labyrinth seal (10).

4. The auxiliary sealing device for the bearing box of the circulating water pump as claimed in claim 1, wherein: the sealing structure of the lower wall of the sealing static ring (2) is a fourth sealing ring (6).