CN211693521U

CN211693521U - Urea machine sealing device

Info

Publication number: CN211693521U
Application number: CN202020164292.3U
Authority: CN
Inventors: 王耀; 曹林; 高建民
Original assignee: Inner Mongolia Boda Field Chemical Co ltd
Current assignee: Inner Mongolia Boda Field Chemical Co ltd
Priority date: 2020-02-12
Filing date: 2020-02-12
Publication date: 2020-10-16
Anticipated expiration: 2030-02-12

Abstract

The utility model discloses a urea machine sealing device, including fastening screw, spring holder, spring, throw-out collar, gland subassembly, driving ring, holding screw, locator card, gland sealing washer and axle sleeve, axle sleeve outside cover has the throw-out collar, the throw-out collar side is equipped with the wedge ring, laminating cover has the rotating ring subassembly on the wedge ring, rotating ring subassembly side laminating is equipped with quiet ring, quiet ring and gland subassembly fixed connection, the fixed quiet ring sealing washer that is equipped with of junction between quiet ring and the gland subassembly, rotating ring subassembly, quiet ring and gland subassembly cover are in the axle sleeve outside. The utility model discloses a form and increase the steam seal chamber, the adjustment machine seals sound ring position, in sealed urea solution, forms the airtight emission of steam condensate, does benefit to the 6S management at scene to reduce steam condensate' S waste, improved site environment, the probability that equipment was corroded simultaneously reduces, has increased equipment life.

Description

Urea machine sealing device

Technical Field

The utility model relates to a mechanical seal technical field specifically is a urea machine seals device.

Background

The medium of the urea melting pump, the medium of the urea solution pump and the medium of the return liquid pump are urea solution, the mechanical seal uses 0.6 steam as blowing steam, the blowing steam leaks outwards all the time in the operation process, the environment around the pump becomes extremely poor, and if the mechanical seal has a leakage condition, the leaked blowing steam can carry urine, so that the conductance of reclaimed water in a trench exceeds the standard, and even the equipment is corroded, and the mechanical seal blowing steam is directly discharged outwards in the original design, so that the management of 6S of the equipment is not facilitated, and the condensate cannot be recycled by the waste steam. Therefore, we improve the above and propose a urea mechanical sealing device.

SUMMERY OF THE UTILITY MODEL

In order to solve the defects existing in the prior art, the utility model provides a urea machine sealing device.

In order to solve the technical problem, the utility model provides a following technical scheme:

the utility model relates to a urea machine seals device, including fastening screw, spring holder, spring, throw-out collar, gland subassembly, driving ring, holding screw, locator card, gland sealing washer and axle sleeve, axle sleeve outside cover has the throw-out collar, the throw-out collar side is equipped with the wedge ring, laminating cover has the rotating ring subassembly on the wedge ring, the laminating of rotating ring subassembly side is equipped with quiet ring, quiet ring and gland subassembly fixed connection, the fixed quiet ring sealing washer that is equipped with of junction between quiet ring and the gland subassembly, rotating ring subassembly, quiet ring and gland subassembly cover are in the axle sleeve outside.

As a preferred technical scheme of the utility model, the rotating ring subassembly includes rotating ring and rotating ring seat, the rotating ring is fixed to be embedded into in the rotating ring seat, the inboard and wedge ring outside laminating setting of rotating ring seat side.

As a preferred technical scheme of the utility model, the gland subassembly includes gland, solid fixed ring, holding ring and steam seal chamber, the fixed lid of gland is on solid fixed ring, gland and the solid fixed ring outside fixed sleeve have the holding ring, gland, solid fixed ring and holding ring are formed with the steam seal chamber before.

As an optimized technical proposal of the utility model, the steam sealing cavity has no leakage under the pressure of 0.5 MPa.

As an optimized technical proposal of the utility model, the surface of the wedge-shaped ring is processed by polishing.

As an optimal technical scheme of the utility model, the rotating ring subassembly passes through bolt and axle sleeve fixed connection.

The utility model has the advantages that: this kind of urea machine seals device through forming and increasing the steam seal chamber, adjusts the machine and seals the sound position of ring, when sealed urea solution, forms the airtight emission of steam condensate, does benefit to the on-the-spot 6S management to reduce the waste of steam condensate, improved site environment, the probability that equipment was corroded simultaneously reduces, has increased equipment life.

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 structural view of a urea mechanical seal device of the present invention;

FIG. 2 is a schematic view of a partial structure of a urea mechanical seal device according to the present invention;

FIG. 3 is a schematic cross-sectional view of a gland assembly of the urea mechanical seal device of the present invention;

fig. 4 is a schematic structural view of a gland assembly of the urea mechanical sealing device of the present invention.

In the figure: 1. fastening screws; 2. a spring seat; 3. a spring; 4. a push ring; 5. a wedge ring; 6. a rotating ring assembly; 7. a stationary ring; 8. a stationary ring seal ring; 9. a gland assembly; 10. a drive ring; 11. tightening the screw; 12. a screw; 13. positioning the card; 14. a gland sealing ring; 15. a shaft sleeve; 17. a gland; 18. a fixing ring; 19. a positioning ring; 20. the chamber is sealed by steam.

Detailed Description

The preferred embodiments of the present invention will be described in conjunction with the accompanying drawings, and it will be understood that they are presented herein only to illustrate and explain the present invention, and not to limit the present invention.

It should be noted that all expressions using "first" and "second" in the embodiments of the present invention are used for distinguishing two entities with the same name but different names or different parameters, and it is understood that "first" and "second" are only used for convenience of expression and should not be understood as limitations to the embodiments of the present invention, and the following embodiments do not describe any more.

The terms of direction and position in the present invention, such as "up", "down", "front", "back", "left", "right", "inside", "outside", "top", "bottom", "side", etc., refer to the direction and position of the attached drawings. Accordingly, the use of directional and positional terms is intended to illustrate and understand the present invention and is not intended to limit the scope of the invention.

Example (b): as shown in fig. 1, fig. 2, fig. 3, fig. 4, the utility model relates to a urea machine sealing device, including fastening screw 1, spring holder 2, spring 3, throw-out collar 4, gland subassembly 9, driving ring 10, holding screw 11, screw 12, locator card 13, gland sealing washer 14 and axle sleeve 15, axle sleeve 15 outside cover has throw-out collar 4, 4 sides of throw-out collar are equipped with wedge ring 5, the laminating cover has a rotating ring subassembly 6 on the

wedge ring

5, 6 side laminating of rotating ring subassembly are equipped with quiet ring 7, quiet ring 7 and gland subassembly 9 fixed connection, the fixed quiet ring sealing washer 8 that is equipped with in junction between quiet ring 7 and the gland subassembly 9, rotating ring subassembly 6, quiet ring 7 and gland subassembly 9 cover are in the axle sleeve 15 outside.

Wherein, the rotating ring subassembly 6 includes rotating ring and rotating ring seat, and the rotating ring is fixed to be embedded into in the rotating ring seat, and the inboard and the 5 outside laminating settings of wedge ring of rotating ring seat side.

The gland assembly 9 comprises a gland 17, a fixing ring 18, a positioning ring 19 and a steam seal cavity 20, the gland 17 is fixedly covered on the fixing ring 18, the positioning ring 19 is fixedly sleeved on the outer sides of the gland 17 and the fixing ring 18, and the steam seal cavity 20 is formed in front of the gland 17, the fixing ring 18 and the positioning ring 19.

Wherein, the steam sealing cavity 20 has no leakage under the pressure of 0.5 MPa.

Wherein the surface of the wedge ring 5 is subjected to a polishing process.

Wherein, the movable ring component (6) is fixedly connected with the shaft sleeve (15) through a bolt.

The working principle is as follows:

as shown in figure 1, the movable ring assembly 6 and the wedge-shaped ring 5 are combined for use, the inner side of the side end of the movable ring seat is in a wedge shape, and the movable ring seat is tightly attached to the wedge shape on the outer side of the wedge-shaped ring 5, so that the sealing performance is effectively guaranteed, and the sealing effect is improved.

Meanwhile, the gland 17, the fixing ring 18 and the positioning ring 19 are directly welded and fixed together to form a steam sealing cavity 20, so that urea solution is sealed, and steam condensate is hermetically discharged, the on-site 6S management is facilitated, the waste of the steam condensate is reduced, the on-site environment is improved, the probability of equipment corrosion is reduced, and the service life of the equipment is prolonged.

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. A urea machine sealing device comprises a fastening screw (1), a spring seat (2), a spring (3), a push ring (4), a gland component (9), a transmission ring (10), a set screw (11), a screw (12), a positioning clamp (13), a gland sealing ring (14) and a shaft sleeve (15), wherein the push ring (4) is sleeved outside the shaft sleeve (15), it is characterized in that a wedge-shaped ring (5) is arranged at the side end of the push ring (4), a movable ring component (6) is fitted and sleeved on the wedge-shaped ring (5), a static ring (7) is attached to the side end of the dynamic ring component (6), the static ring (7) is fixedly connected with a gland component (9), a static ring sealing ring (8) is fixedly arranged at the joint between the static ring (7) and the gland component (9), the movable ring assembly (6), the static ring (7) and the gland assembly (9) are sleeved outside the shaft sleeve (15).

2. The urea mechanical sealing device according to claim 1, wherein the rotating ring assembly (6) comprises a rotating ring and a rotating ring seat, the rotating ring is fixedly embedded into the rotating ring seat, and the inner side of the side end of the rotating ring seat is attached to the outer side of the wedge-shaped ring (5).

3. The urea mechanical seal device according to claim 1, wherein the gland assembly (9) comprises a gland (17), a fixing ring (18), a positioning ring (19) and a steam seal cavity (20), the gland (17) is fixedly covered on the fixing ring (18), the positioning ring (19) is fixedly sleeved outside the gland (17) and the fixing ring (18), and the steam seal cavity (20) is formed in front of the gland (17), the fixing ring (18) and the positioning ring (19).

4. A urea machine seal according to claim 3, characterized in that said steam tight chamber (20) is leak-free at a pressure of 0.5 MPa.

5. A urea machine seal according to claim 1, characterized in that the surface of said wedge ring (5) is polished.

6. The urea mechanical seal device according to claim 1, wherein the movable ring assembly (6) is fixedly connected with the shaft sleeve (15) through bolts.