CN210936161U - Multipoint flushing device for mechanical seal - Google Patents

Abstract

The utility model discloses a multiple spot washing unit for mechanical seal, including main shaft and sealed axle sleeve, be provided with the rotating ring seat on the sealed axle sleeve, the right-hand member of rotating ring seat is provided with the rotating ring, the right-hand member of rotating ring is provided with quiet ring, the right-hand member of quiet ring is provided with quiet ring seat, the outer end of quiet ring seat is provided with spring assembly, spring assembly's outer end is provided with the gland, the left end of gland is provided with the diffluence ring, the diffluence ring is located the outer end of quiet ring. The flushing head uniformly arranged along the circumference in the shunting ring forms a multi-point flushing structure, the friction pair is flushed, the temperature deformation can be avoided, the position faces to the sealing end face, the rotating ring rotates to avoid erosion, the flushing effect is better, and the flushing fluid is timely discharged through a gap reserved between the right end face of the shunting ring and the rotating ring seat, so that the heat is better taken away.

Description

Multipoint flushing device for mechanical seal

Technical Field

The utility model relates to a mechanical seal technical field specifically is a mechanical seal uses multiple spot washing unit.

Background

The mechanical sealing part belongs to one of mechanical basic elements with precision and complicated structures, is a key part of equipment such as various pumps, reaction synthesis kettles, turbine compressors, submersible motors and the like, and the sealing performance and the service life of the mechanical sealing part depend on a plurality of factors, such as model selection, machine precision, correct installation and use and the like.

The existing mechanical seal external flushing system is mostly in a single-point flushing mode, and flushing liquid directly flushes to a movable and static ring sealing surface. The drawback that the flush fluid can have the inhomogeneous distribution when the single-point is washed, and granule impurity can cause wearing and tearing at the local gathering of sealing ring. The mode that the single-point was washed simultaneously, the flush fluid directly dashes to the sealed face of sound ring from washing the mouth under the pressure differential effect, and long-time effect can lead to the sealed face of sound ring to erode the inefficacy, and traditional mechanical seal washing unit can't wash the spring assembly, and the spring rusts down for a long time using faces and blocks up danger, makes the spring inefficacy, leads to the seal face to open to lead to mechanical seal inefficacy.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide a mechanical seal is with multiple spot washing unit to solve the problem that proposes among the above-mentioned background art.

In order to achieve the above object, the utility model provides a following technical scheme: a multipoint flushing device for mechanical sealing comprises a main shaft and a sealing shaft sleeve, wherein a movable ring seat is arranged on the sealing shaft sleeve, a movable ring is arranged at the right end of the movable ring seat, a static ring is arranged at the right end of the movable ring, a static ring seat is arranged at the right end of the static ring, a spring group is arranged at the outer end of the static ring seat, a gland is arranged at the outer end of the spring group, a splitter ring is arranged at the left end of the gland, the splitter ring is positioned at the outer end of the static ring, a water inlet is arranged on the outer side surface of the gland, a gland shunt pipe is arranged at the position where the water inlet extends to the inside of the gland to be half of the position, flushing heads which are uniformly distributed are arranged in the circumferential direction of the gland shunt pipe, the other end of the flushing heads is connected to the spring group, a water outlet is arranged, the inside of splitter ring is provided with the shunt tubes, the inside of shunt tubes is provided with evenly distributed's washing head along the circumferencial direction, the shunt tubes inside the splitter ring are linked to communicating pipe.

Preferably, the inside of the water inlet is provided with an inner notch, and the inside of the inner notch is provided with a thread.

Preferably, the material of the shunt ring is sic.

Preferably, the left end of gland is provided with the location screw, the splitter ring passes through the bolt and can dismantle with the gland and be connected.

Preferably, a silica gel sealing sleeve is arranged at the joint of the diverter ring and the gland of the communicating pipe.

Preferably, a gap is reserved between the right end face of the shunt ring and the movable ring seat.

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

1. the utility model has simple structure, through setting the flushing water entering the interior of the gland, the flushing water is divided into a plurality of strands of water flows through the flushing head to specially flush each spring in the spring group through the shunting action of the gland shunt tubes communicated with the spring groups, thereby effectively preventing the problem that the spring holes are blocked by rusty rust in the spring groups to cause failure of mechanical seal when the mechanical seal device is used for a long time, and prolonging the service life of the mechanical seal device;

2. the utility model discloses set up the splitter ring between rotating ring and the quiet ring friction pair, through the location screw of the left end of gland, can dismantle the splitter ring through bolt and gland and be connected. The shunt ring introduces the sparge water in the gland, shunt tubes in the shunt ring shunt to each washing head, wash the structure through the washing head formation multiple spot of interior along circumference align to grid of shunt ring, wash the friction pair, can avoid the temperature to warp, and the position is facing to the sealing end face, the rotating movable ring also can avoid forming the erosion, make the effect of washing better, through setting up the gap that leaves between the right-hand member face of shunt ring and the rotating ring seat, in time discharge the flush fluid, take away the heat better.

Drawings

Fig. 1 is a schematic view of the overall structure of the present invention.

Fig. 2 is a schematic structural view of the shunt ring of the present invention.

In the figure: 1. the device comprises a main shaft, 2, a sealing shaft sleeve, 3, a movable ring seat, 4, a movable ring, 5, a static ring, 6, a static ring seat, 7, a spring group, 8, a gland, 9, a shunt ring, 10, a water inlet, 11, a gland shunt pipe, 12, a water outlet, 13, a communicating pipe, 14, a shunt pipe, 15 and a flushing head.

Detailed Description

In order to make the technical means, creation features, achievement purposes and functions of the present invention easy to understand, the present invention is further described below with reference to the following embodiments.

In the description of the present invention, it should be noted that the terms "upper", "lower", "inner", "outer", "front end", "rear end", "both ends", "one end", "the other end" and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience of description and simplification of description, but do not indicate or imply that the device or element to which the reference is made must have a specific orientation, be constructed in a specific orientation, and be operated, and thus, should not be construed as limiting the present invention. Furthermore, the terms "first" and "second" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance.

In the description of the present invention, it is to be noted that, unless otherwise explicitly specified or limited, the terms "mounted," "disposed," "connected," and the like are to be construed broadly, and for example, "connected" may be either fixedly connected or detachably connected, or integrally connected; 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 present invention can be understood in specific cases to those skilled in the art.

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. 1-2, the present invention provides an embodiment: a multipoint flushing device for mechanical sealing comprises a main shaft 1 and a sealing shaft sleeve 2, wherein a movable ring seat 3 is arranged on the sealing shaft sleeve 2, a movable ring 4 is arranged at the right end of the movable ring seat 3, a static ring 5 is arranged at the right end of the movable ring 4, a static ring seat 6 is arranged at the right end of the static ring 5, a spring set 7 is arranged at the outer end of the static ring seat 6, a gland 8 is arranged at the outer end of the spring set 7, a shunting ring 9 is arranged at the left end of the gland 8, the shunting ring 9 is made of sic, due to the fact that the sic has the characteristics of corrosion resistance, high temperature resistance, high strength, good heat conduction performance, impact resistance and the like, the service life of the shunting ring 9 can be effectively prolonged, the adaptability under different working conditions is improved, a gap is reserved between the right end face of the shunting ring 9 and the movable ring seat 3, flushing fluid is convenient to discharge, a positioning screw hole is arranged at the left end of the gland 8, the shunting, and later-stage disassembly maintenance, the shunt ring 9 is positioned at the outer end of the static ring 5, the outer side surface of the gland 8 is provided with a water inlet 10, the inside of the water inlet 10 is provided with an inner notch, the inside of the inner notch is provided with threads, so that an external flushing fluid pipeline is more tightly connected with the water inlet 10, the water inlet 10 extends to the half position in the gland 8 to be provided with a gland shunt pipe 11, the shunt pipe 11 is provided with flushing heads 15 which are uniformly distributed along the circumferential direction, the other end of the flushing head 15 is connected with the spring group 7, the right end of the spring group 7 is provided with a water outlet 12, the water outlet 12 penetrates through the gland 8, the left end of the gland shunt pipe 11 is provided with a communicating pipe 13, the communicating pipe 13 is positioned at the joint of the shunt ring 9 and the gland 8 and is provided with a silica gel sealing sleeve to prevent flushing fluid from overflowing in a, the communicating pipe 13 communicates with the branch pipes 14 inside the flow dividing ring 9.

The working principle is as follows: the utility model is firstly put the gland 8 flat when in use, the position of the shunt ring 9 is found by the screw hole on the gland 8, the silica gel sealing sleeve is placed at the joint of the shunt ring 9 and the gland 8 in the communicating pipe 13, the shunt ring 9 is fixed on the gland 8 by the bolt, the external flushing fluid pipeline is fixed by the screw hole inside the water inlet 10, the valve is opened, the flushing fluid is filled in the flushing system, the flushing fluid is shunted to each flushing head 15 by the gland shunt pipe 11, the spring group 7 is flushed and is discharged by the water outlet 12, the flushing fluid is guided into the shunt ring 9 by the communicating pipe 13 and is communicated to the flushing head 15 by the shunt pipe 14 inside the shunt ring 9, the flushing fluid flows out to flush the static ring 5 and the moving ring 4, a clean working environment surrounded by the flushing water can be formed around the outer diameter of the static ring seal 6 and the moving ring seal 5 during flushing, and is discharged by the gap left between the right end surface of the shunt, the device simple structure can carry out the multiple spot to the friction surface between spring unit 7, quiet ring 5 and the rotating ring 4 in the mechanical seal simultaneously and wash, avoids causing mechanical seal's inefficacy because of adverse media environment such as high temperature, corruption, particulate matter, extension mechanical seal's life.

The above description is only an example of the present invention, and the common general knowledge of the known specific structures and characteristics of the embodiments is not described herein. It is obvious to a person skilled in the art that the invention is not restricted to details of the above-described exemplary embodiments, but that it can be implemented 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. Any reference sign in a claim should not be construed as limiting the claim concerned.

Claims (6)

1. The utility model provides a multiple spot washing unit for mechanical seal, includes main shaft (1) and sealed axle sleeve (2), its characterized in that: the sealing device is characterized in that a movable ring seat (3) is arranged on the sealing shaft sleeve (2), a movable ring (4) is arranged at the right end of the movable ring seat (3), a static ring (5) is arranged at the right end of the movable ring (4), a static ring seat (6) is arranged at the right end of the static ring (5), a spring group (7) is arranged at the outer end of the static ring seat (6), a gland (8) is arranged at the outer end of the spring group (7), a shunt ring (9) is arranged at the left end of the gland (8), the shunt ring (9) is positioned at the outer end of the static ring (5), a water inlet (10) is arranged on the outer side surface of the gland (8), a gland shunt pipe (11) is arranged at the position of the water inlet (10) extending to the inside of the gland (8) to be half of the position, flushing heads (15) which are uniformly distributed are arranged along the circumferential direction of the gland shunt pipe (, the right-hand member of spring assembly (7) is provided with delivery port (12), delivery port (12) run through gland (8), the left end of gland shunt tubes (11) is provided with communicating pipe (13), the inside of reposition of redundant personnel ring (9) is provided with shunt tubes (14), the inside of shunt tubes (14) is provided with evenly distributed's washing head (15) along the circumferencial direction, communicating pipe (13) communicate to shunt tubes (14) of shunt rings (9) inside.

2. The multipoint flushing device for the mechanical seal according to claim 1, characterized in that: an inner notch is formed in the water inlet (10), and threads are arranged in the inner notch.

3. The multipoint flushing device for the mechanical seal according to claim 1, characterized in that: the material of the shunt ring (9) is sic.

4. The multipoint flushing device for the mechanical seal according to claim 1, characterized in that: the left end of gland (8) is provided with the location screw, splitter ring (9) can dismantle with gland (8) through the bolt and be connected.

5. The multipoint flushing device for the mechanical seal according to claim 1, characterized in that: and a silica gel sealing sleeve is arranged at the joint of the shunting ring (9) and the gland (8) of the communicating pipe (13).

6. The multipoint flushing device for the mechanical seal according to claim 1, characterized in that: and a gap is reserved between the right end face of the shunt ring (9) and the movable ring seat (3).

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