CN211288214U

CN211288214U - Mechanical sealing device for slurry pump with bidirectional balance

Info

Publication number: CN211288214U
Application number: CN201922320361.5U
Authority: CN
Inventors: 陈成标; 林祥春; 梅春晓; 陈振生
Original assignee: ZHEJIANG LANDTEC MECHANICAL SEALS CO LTD
Current assignee: ZHEJIANG LANDTEC MECHANICAL SEALS CO LTD
Priority date: 2019-12-23
Filing date: 2019-12-23
Publication date: 2020-08-18
Anticipated expiration: 2029-12-23

Abstract

The utility model discloses a mechanical sealing device for a slurry pump with bidirectional balance, which comprises a shaft sleeve, a gland, an outer static ring, a dynamic ring, a gasket, a transmission sleeve, an anti-rotation screw, a first spring washer, a snap ring, an inner static ring, a first O-shaped ring, a second O-shaped ring, a flange component, a spring, a third O-shaped ring, a fourth O-shaped ring, a fifth O-shaped ring, a first inner hexagonal cylinder head screw, a second spring washer, a pipe joint, an inner thread three-way joint, a pressure gauge buffer pipe, a pressure gauge, an inner thread connection ball valve and a sixth O-shaped ring, wherein the shaft sleeve is fixedly sleeved at the shaft side of the slurry pump, the gland is sleeved outside the shaft sleeve, the mechanical sealing device for the slurry pump with bidirectional balance greatly optimizes the design of the existing mechanical sealing structure for the slurry pump, so that the mechanical sealing device can realize bidirectional balance and reduce the on-, the integral structure is compact and stable, the sealing effect is good, the failure is not easy to happen, and the sealing structure has more advantages in market competition.

Description

Mechanical sealing device for slurry pump with bidirectional balance

Technical Field

The utility model relates to a sediment stuff pump technical field specifically is a mechanical seal device for sediment stuff pump of two-way balance.

Background

The slurry pump belongs to a centrifugal pump in terms of working principle, and conceptually refers to a device which converts electric energy into kinetic energy and potential energy of a medium by a mechanism which increases the energy of a solid-liquid mixed medium under the action of centrifugal force (rotation of an impeller of the pump). The method is mainly suitable for the industries of mines, power plants, dredging, metallurgy, chemical industry, building materials, petroleum and the like. The requirement of the slurry pump on mechanical sealing is high in the using process, but the mechanical sealing device for the slurry pump in the current market is generally of an unbalanced structure, the structure has high requirement on field maintenance, and the applicability is too narrow. Therefore, it is necessary to design a mechanical sealing device for a slurry pump with bidirectional balance.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide a two-way balanced mechanical seal device for slurry pump to solve the problem that provides among the above-mentioned background art.

In order to solve the technical problem, the utility model provides a following technical scheme: a mechanical sealing device for a slurry pump with bidirectional balance comprises a shaft sleeve, a gland, an outer static ring, a rotating ring, a gasket, a transmission sleeve, an anti-rotation screw, a first spring washer, a snap ring, an inner static ring, a first O-shaped ring, a second O-shaped ring, a flange assembly, a spring, a third O-shaped ring, a fourth O-shaped ring, a fifth O-shaped ring, a first inner hexagonal socket head screw, a second spring washer, a pipe joint, an inner thread three-way joint, a pressure gauge, an inner thread connection ball valve and a sixth O-shaped ring, wherein the shaft sleeve is fixedly sleeved on the shaft side of the slurry pump, the gland is sleeved outside the shaft sleeve, the side surface of the gland is arched, the transmission sleeve is fixedly installed in a cavity formed between the transmission sleeve and the shaft sleeve, the transmission sleeve is fixedly connected with the shaft sleeve through the anti-rotation screw arranged in the center of the side surface, and, the outside fixed mounting of gland has the flange subassembly, and the both ends inboard difference fixedly connected with of junction is outer quiet ring and interior quiet ring, the gland is provided with fifth O type circle with the junction of outer quiet ring, all cup jointed the rotating ring on the axle sleeve of transmission cover both sides, and two the rotating ring sets up with outer quiet ring and interior quiet ring cooperation respectively, be provided with the spring in the axle sleeve that the transmission cover corresponds and the cavity of gland, and the gland of this side is respectively through the double-phase adjacent side fixed connection of first interior hexagonal cylinder head screw and second interior hexagonal cylinder head screw and flange subassembly, still cup jointed the second spring washer on the second interior hexagonal cylinder head screw, the gap department of gland and flange subassembly is provided with fourth O type circle and sixth O type circle respectively.

Furthermore, the two ends of the shaft sleeve are respectively and tightly connected with the two fixed sleeves installed on the shaft side, and the joints are provided with first O-shaped rings.

Furthermore, a gasket and a third O-shaped ring are arranged at a gap between the movable ring and the transmission sleeve.

Furthermore, a pipe joint is vertically arranged on the gland on one side of the transmission sleeve, the top of the pipe joint is respectively connected with a pressure gauge buffer pipe and an internal thread connecting ball valve through an internal thread three-way joint, and the other end of the pressure gauge buffer pipe is connected with a pressure gauge.

Furthermore, a clamping ring is arranged at a gap between one side of the inner static ring and the flange assembly, and two second O-shaped rings are arranged at the joint of the top of the inner static ring and the flange assembly.

Further, the axis of the spring is parallel to the axis of the shaft sleeve.

Compared with the prior art, the utility model discloses the beneficial effect who reaches is: this mechanical seal device for slurry pump of two-way balance has carried out optimization by a wide margin to current mechanical seal structure design for slurry pump, makes it can realize two-way balance, has reduced the field maintenance requirement, and overall structure is compact, and is stable, and is sealed effectual, is difficult for losing efficacy, more has the advantage in the competition in market.

Drawings

The accompanying drawings are included to provide a further understanding of the invention, and are incorporated in and constitute a part of this specification, illustrate embodiments of the invention, and together with the description serve to explain the invention and not to limit the invention.

In the drawings:

fig. 1 is a schematic view of the overall internal structure of the present invention;

in the figure: 1. a shaft sleeve; 2. a gland; 3. an outer stationary ring; 4. a moving ring; 5. a gasket; 6. a transmission sleeve; 7. an anti-rotation screw; 8. a first spring washer; 9. a snap ring; 10. an inner stationary ring; 11. a first O-ring; 12. a second O-ring; 13. a flange assembly; 14. a spring; 15. a third O-ring; 16. a fourth O-ring; 17. a fifth O-ring; 18. a first socket cap head screw; 19. a second socket cap head screw; 20. a second spring washer; 21. a pipe joint; 22. an internal thread three-way joint; 23. a pressure gauge buffer tube; 24. a pressure gauge; 25. the internal thread is connected with the ball valve; 26. and a sixth O-ring.

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 only some embodiments of the present invention, not all embodiments. 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.

Referring to fig. 1, the present invention provides a technical solution: a mechanical sealing device for a slurry pump with bidirectional balance comprises a shaft sleeve 1, a gland 2, an outer static ring 3, a rotating ring 4, a gasket 5, a transmission sleeve 6, an anti-rotating screw 7, a first spring washer 8, a snap ring 9, an inner static ring 10, a first O-shaped ring 11, a second O-shaped ring 12, a flange component 13, a spring 14, a third O-shaped ring 15, a fourth O-shaped ring 16, a fifth O-shaped ring 17, a first inner hexagonal cylindrical head screw 18, a second inner hexagonal cylindrical head screw 19, a second spring washer 20, a pipe joint 21, an inner thread three-way joint 22, a pressure gauge buffer pipe 23, a pressure gauge 24, an inner thread connecting ball valve 25 and a sixth O-shaped ring 26, wherein the shaft sleeve 1 is fixedly sleeved on the shaft side of the slurry pump, the gland 2 is sleeved outside the shaft sleeve 1, two ends of the shaft sleeve 1 are respectively and tightly connected with two fixed sleeves arranged on the shaft side, and the joints of the shaft side are, the sealing performance of the joint is ensured, the side surface of the gland 2 is arched, a transmission sleeve 6 is fixedly arranged in a cavity formed between the gland 2 and the shaft sleeve 1, a pipe joint 21 is vertically arranged on the gland 2 on one side of the transmission sleeve 6, the top of the pipe joint 21 is respectively connected with a pressure gauge buffer pipe 23 and an internal thread connection ball valve 25 through an internal thread three-way joint 22, the other end of the pressure gauge buffer pipe 23 is connected with a pressure gauge 24 for observing the pressure conveniently, the transmission sleeve 6 is fixedly connected with the shaft sleeve 1 through an anti-rotation screw 7 arranged in the center of the side surface, a first spring washer 8 is further sleeved on the anti-rotation screw 7, a flange assembly 13 is fixedly arranged on the outer side of the gland 2, an outer static ring 3 and an inner static ring 10 are respectively fixedly connected on the inner sides of the two ends of the joint, a fifth O-shaped ring 17 is arranged at the joint of the gland 2 and the outer static, the two movable rings 4 are respectively matched with the outer stationary ring 3 and the inner stationary ring 10, a gasket 5 and a third O-shaped ring 15 are arranged at a gap between the movable rings 4 and the transmission sleeve 6, a spring 14 is arranged in a cavity of the shaft sleeve 1 and the gland 2 corresponding to the transmission sleeve 6, the axis of the spring 14 is parallel to the axis of the shaft sleeve 1, so that the buffer stability of the connection part is facilitated, the gland 2 at the side is fixedly connected with two adjacent sides of the flange component 13 through a first inner hexagonal socket head cap screw 18 and a second inner hexagonal socket head cap screw 19 respectively, a clamping ring 9 is arranged at a gap between one side of the inner stationary ring 10 and the flange component 13, two second O-rings 12 are arranged at the joint of the top of the inner static ring 10 and the flange assembly 13, so that the sealing performance of the joint is ensured, a second spring gasket 20 is sleeved on the second inner hexagonal socket head cap screw 19, and a fourth O-ring 16 and a sixth O-ring 26 are respectively arranged at the gap between the gland 2 and the flange assembly 13; the utility model discloses a, adopt a plurality of O type circles to carry out the sealing of junction between structure, the spring 14 that sets up simultaneously can cushion vibrations, offsets the effort, has guaranteed the stability when rotating ring 4 moves, and structural connection is compact, can survey pressure in real time to in time take measures, realized two-way balance, reduced the on-the-spot maintenance requirement, overall structure is compact, and is stable, and is sealed effectual, and difficult inefficacy more has the advantage in the competition in market.

It is noted that, herein, relational terms such as first and second, and the like may be used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Also, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus.

Finally, it should be noted that: although the present invention has been described in detail with reference to the foregoing embodiments, it will be apparent to those skilled in the art that modifications may be made to the embodiments described in the foregoing embodiments, or equivalents may be substituted for elements thereof. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.

Claims

1. The utility model provides a two-way balanced mechanical seal device for sediment thick liquid pump, including axle sleeve (1), gland (2), outer quiet ring (3), rotating ring (4), gasket (5), driving sleeve (6), prevent changeing screw (7), first spring washer (8), snap ring (9), interior quiet ring (10), first O type circle (11), second O type circle (12), flange unit (13), spring (14), third O type circle (15), fourth O type circle (16), fifth O type circle (17), first interior hexagonal cylinder head screw (18), second interior hexagonal cylinder head screw (19), second spring washer (20), coupling (21), female thread three way connection (22), manometer (23), manometer (24), female connection ball valve (25) and sixth O type circle (26), its characterized in that: the shaft sleeve (1) is fixedly sleeved on the shaft side of a slurry pump, a gland (2) is sleeved on the outer portion of the shaft sleeve (1), the side face of the gland (2) is arched, a transmission sleeve (6) is fixedly installed in a cavity formed between the shaft sleeve (1), the transmission sleeve (6) is fixedly connected with the shaft sleeve (1) through an anti-rotation screw (7) arranged in the center of the side face, a first spring gasket (8) is further sleeved on the anti-rotation screw (7), a flange component (13) is fixedly installed on the outer side of the gland (2), the inner sides of the two ends of a joint are fixedly connected with an outer static ring (3) and an inner static ring (10) respectively, a fifth O-shaped ring (17) is arranged at the joint of the gland (2) and the outer static ring (3), a movable ring (4) is sleeved on the shaft sleeve (1) on the two sides of the transmission sleeve (6), and the two movable rings (4) are respectively matched with the outer static ring (3) and the inner static ring (10), a spring (14) is arranged in a cavity of the shaft sleeve (1) corresponding to the transmission sleeve (6) and the gland (2), the gland (2) on the side is fixedly connected with two adjacent side faces of the flange component (13) through a first inner hexagonal cylindrical head screw (18) and a second inner hexagonal cylindrical head screw (19) respectively, a second spring washer (20) is further sleeved on the second inner hexagonal cylindrical head screw (19), and a fourth O-shaped ring (16) and a sixth O-shaped ring (26) are arranged at a gap between the gland (2) and the flange component (13) respectively.

2. The mechanical sealing device for the slurry pump with the bidirectional balance function according to claim 1, wherein: the two ends of the shaft sleeve (1) are respectively and tightly connected with the two fixed sleeves installed on the shaft side, and the joints are provided with first O-shaped rings (11).

3. The mechanical sealing device for the slurry pump with the bidirectional balance function according to claim 1, wherein: a gasket (5) and a third O-shaped ring (15) are arranged at a gap between the movable ring (4) and the transmission sleeve (6).

4. The mechanical sealing device for the slurry pump with the bidirectional balance function according to claim 1, wherein: the pressure-sensitive connector is characterized in that a pipe joint (21) is vertically arranged on the gland (2) on one side where the transmission sleeve (6) is located, the top of the pipe joint (21) is connected with a pressure gauge buffer pipe (23) and an internal thread connecting ball valve (25) through an internal thread tee joint (22), and the other end of the pressure gauge buffer pipe (23) is connected with a pressure gauge (24).

5. The mechanical sealing device for the slurry pump with the bidirectional balance function according to claim 1, wherein: a clamping ring (9) is arranged at a gap between one side of the inner static ring (10) and the flange assembly (13), and two second O-shaped rings (12) are arranged at the joint of the top of the inner static ring (10) and the flange assembly (13).

6. The mechanical sealing device for the slurry pump with the bidirectional balance function according to claim 1, wherein: the axis of the spring (14) is parallel to the axis of the shaft sleeve (1).