CN219827707U

CN219827707U - Double-section packing sealing device

Info

Publication number: CN219827707U
Application number: CN202321340825.9U
Authority: CN
Inventors: 李伯成; 刘维; 刘为旺; 熊勇
Original assignee: Chongqing Lihong Fine Chemicals Co Ltd
Current assignee: Chongqing Lihong Fine Chemicals Co Ltd
Priority date: 2023-05-30
Filing date: 2023-05-30
Publication date: 2023-10-13
Anticipated expiration: 2033-05-30

Abstract

The utility model relates to the field of sealing equipment, and discloses a double-section packing sealing device which comprises a packing seat, an intermediate spacer ring, a side pressing ring, a packing gland, a left packing, a right packing, a cooling water jacket and an oil pipe, wherein a space for a rotating shaft to pass through is formed in the packing seat, one end of the packing seat is detachably arranged on the side wall of a container, the side pressing ring is detachably arranged at one side, close to the container, in the packing seat, the intermediate spacer ring is fixed at the middle position in the packing seat, the packing gland is detachably arranged at one end, far away from the container, of the packing seat, and the left packing is tightly pressed among the packing seat, the side pressing ring, the intermediate spacer ring and the rotating shaft. According to the utility model, through the arrangement of the side pressure rings, the cooling water jacket, the oil pipe and other structures, the whole sealing device and the rotating shaft can be cooled, so that the sealing performance of the sealing device is ensured, and the service lives of the sealing device and the rotating shaft are prolonged.

Description

Double-section packing sealing device

Technical Field

The utility model relates to the technical field of sealing equipment, in particular to a double-section packing sealing device.

Background

The packing seal is a traditional contact seal, is widely used for sealing rotating shafts of containers such as a stirrer, a reaction kettle and the like, and has the main advantages of simple structure, low cost and wide application range. At present, in order to promote sealing effect, most packing sealing device all adopts two sections sealings, adopts the baffle part to separate into two sections with packing promptly, and the atress that sets up like this can make packing when compressing tightly is more even to this promotes sealing effect.

A double-sided compression packing seal for a reactor as disclosed in chinese patent (application number 202121138103.6) comprising: packing seat, packing closing device, packing seat suit is in the pivot and the left end and the axle sleeve of packing seat are fixed to be linked to each other, and packing closing device includes: the packing box is sleeved on the rotating shaft, one end of the packing box is inserted into the packing seat, packing is placed between the packing box and the rotating shaft and is compressed through the first packing gland and the second packing gland, and a sealing spacer ring is arranged in the middle of the inner side of the packing box.

The sealing effect is improved by dividing the filler into two sections, but the rotating shaft continuously rubs and generates heat with the filler in the process of continuous rotation, and after long-time working, the temperature of the whole sealing device and the temperature of the rotating shaft are increased, so that the whole sealing performance of the sealing device is affected, and the service life of the sealing device is shortened.

Disclosure of Invention

In view of the above, the present utility model is to provide a dual-segment packing sealing device, which is used for solving the problems that in the background art, the rotating shaft continuously rubs with the packing to generate heat in the continuous rotating process, and after long-time working, the temperature of the whole sealing device and the rotating shaft are raised, so that the service life of the sealing device is shortened.

The utility model solves the technical problems by the following technical means:

the utility model provides a two sections packing sealing device, includes packing seat, middle spacer ring, limit side press ring, gland, left side packing, right side packing, cooling water jacket and oil pipe, the inside of packing seat has the space that supplies the pivot to pass, the one end demountable installation of packing seat is in on the lateral wall of container, the limit side press ring demountable installation is in inside being close to of packing seat one side of container, middle spacer ring is fixed the inside intermediate position of packing seat, gland demountable installation is in the one end that the packing seat kept away from the container, left side packing is compressed tightly in the packing seat the limit side press ring middle spacer ring with between the pivot, right side packing is compressed tightly in the packing seat the gland the middle spacer ring with between the pivot, the cooling water jacket sets up on the lateral wall of packing seat, the one end demountable installation of oil pipe is in middle spacer ring is used for to left side packing with right side packing is provided with the lubricating oil pipe runs through the cooling water jacket of packing seat.

Further, the inside of middle spacer ring be equipped with the annular oil duct of oil pipe intercommunication, the left side of middle spacer ring be equipped with a plurality of with the left side oilhole of annular oil duct intercommunication, a plurality of left side oilhole is annular array structure and arranges, the right side of middle spacer ring be equipped with a plurality of with the right side oilhole of annular oil duct intercommunication, a plurality of right side oilhole is annular array structure and arranges.

Further, the outer circumferential side wall of the middle spacer ring is provided with a connecting hole, one end of the oil pipe is in threaded connection with the connecting hole, and the connecting hole is used for communicating the oil pipe with the annular oil duct.

Further, the outer side wall of the cooling water jacket is provided with a boss part for installing the oil pipe, the oil pipe penetrates through the boss part, a sealing ring is installed between the boss part and the oil pipe, and a compression nut for compressing the sealing ring is connected to the oil pipe through threads.

Further, a water inlet pipe and a water outlet pipe which are communicated with the inside of the cooling water jacket are fixed on the outer side wall of the cooling water jacket.

Further, a first flange is fixed at one end, connected with the container, of the packing seat, and the first flange is mounted on the side wall of the container through bolts.

Further, one end of the packing seat, which is far away from the container, is fixed with a second flange, a third flange is fixed on the packing pressing cover, and the third flange is connected with the second flange through bolts.

The utility model has the beneficial effects that:

1. according to the utility model, the cooling water jacket is arranged on the packing seat, so that a plurality of structures such as the packing seat, the packing, the oil pipe, the rotating shaft and the like can be cooled, the sealing performance of the sealing device is ensured, and the service lives of the sealing device and the rotating shaft are prolonged.

2. According to the packing seat, the side pressure rings and the packing gland are detachably arranged at the two ends of the packing seat, so that the left packing and the right packing are conveniently pressed, and the left packing and the right packing are conveniently replaced.

3. According to the utility model, the annular oil duct is arranged in the middle spacer ring, and the oil holes in the circumferential arrays are arranged at the two sides of the middle spacer ring, so that lubricating oil flowing out of the middle spacer ring can more uniformly enter the left-side packing and the right-side packing, the pressure of the packing at the two sides is more uniform, and the sealing effect of the packing is improved.

4. According to the utility model, the oil pipe is connected to the middle spacer ring in a threaded manner, so that the oil pipe is convenient to replace when the oil pipe is damaged.

5. According to the utility model, the sealing ring and the compression nut are arranged, so that on one hand, the connection between the oil pipe and the cooling water jacket is firmer, and on the other hand, the sealing effect between the oil pipe and the cooling water jacket is enhanced through the sealing ring, and the risk of outflow of cooling water from a gap between the oil pipe and the cooling water jacket is reduced.

Drawings

FIG. 1 is a cross-sectional view of a dual segment packing seal in an embodiment of the present utility model;

FIG. 2 is a left side view of an intermediate spacer ring in an embodiment of the present utility model;

wherein, 1, a filler seat; 2. an intermediate spacer ring; 3. a side pressing ring; 4. a packing gland; 5. left packing; 6. a right packing; 7. a cooling water jacket; 8. an oil pipe; 9. a rotating shaft; 10. a first flange; 11. a container; 12. a second flange; 13. a third flange; 14. a water inlet pipe; 15. a water outlet pipe; 16. an annular oil passage; 17. a left oil hole; 18. a right oil hole; 19. a boss portion; 20. a seal ring; 21. and (5) compressing the nut.

Detailed Description

The following embodiments of the present utility model are described in terms of specific examples, and those skilled in the art will appreciate the advantages and capabilities of the present utility model from the disclosure herein. It should be noted that, the illustrations provided in the following embodiments are for illustration only, and are shown in schematic drawings, not physical drawings, and are not to be construed as limiting the utility model, and in order to better illustrate the embodiments of the utility model, certain components in the drawings may be omitted, enlarged or reduced, and do not represent the size of the actual product; it will be appreciated by those skilled in the art that certain well-known structures in the drawings and descriptions thereof may be omitted.

In the description of the present utility model, it should be understood that, if there are terms such as "upper", "lower", "left", "right", "front", "rear", etc., that indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, it is merely for convenience in describing the present utility model and simplifying the description, and it is not indicated or implied that the devices or elements referred to must have a specific orientation, be configured and operated in a specific orientation, so that the terms describing the positional relationships in the drawings are merely for exemplary illustration and are not to be construed as limitations of the present utility model, and that the specific meanings of the terms described above may be understood by those skilled in the art according to circumstances.

As shown in fig. 1 and 2, the embodiment of the utility model provides a double-section packing sealing device, which mainly comprises a packing seat 1, an intermediate spacer ring 2, a side pressing ring 3, a packing gland 4, a left packing 5, a right packing 6, a cooling water jacket 7 and an oil pipe 8. Wherein, the inside of the packing seat 1 has a space for the rotation shaft 9 to pass through, and the space is a cylindrical space, and the diameter of the cylindrical space is larger than that of the rotation shaft 9.

One end of the packing seat 1 is fixed with a first flange 10, the first flange 10 is mounted on the side wall of the container 11 through bolts, and the packing seat 1 is detachably mounted on the side wall of the container 11 through the first flange 10. The side pressing ring 3 is detachably arranged at one side, close to the container 11, inside the packing seat 1, and the side pressing ring 3 can be directly sleeved on the rotating shaft 9, the side pressing ring 3 can also move relative to the packing seat 1, and the left side of the side pressing ring 3 and the side wall of the container 11 are mutually abutted. The middle spacer ring 2 is fixed at the middle position inside the packing seat 1 and is used for dividing the space for installing the packing inside the packing seat 1 into two sections. The packing gland 4 is detachably mounted at one end, far away from the container 11, of the packing seat 1, specifically, one end, far away from the container 11, of the packing seat 1 is fixedly provided with a second flange 12, a third flange 13 is fixedly arranged on the packing gland 4, and the third flange 13 is connected with the second flange 12 through bolts, so that the packing gland 4 is detachably mounted on the packing seat 1.

The packing 5 is compressed between the packing seat 1, the side pressing ring 3, the middle spacing ring 2 and the rotating shaft 9, when the packing 5 is installed, the packing 5 can be directly placed between the packing seat 1 and the rotating shaft 9, and then the packing seat 1 is pushed to one side close to the container 11, so that the packing 5 is compressed by the side pressing ring 3 and the middle spacing ring 2, and the packing is convenient to install or replace.

The right packing 6 is tightly pressed between the packing seat 1, the packing gland 4, the middle spacer ring 2 and the rotating shaft 9, when the right packing 6 is installed, the right packing 6 can be directly placed between the packing seat 1 and the rotating shaft 9, and then the packing gland 4 is pushed to the side close to the container 11, so that the packing gland 4 and the middle spacer ring 2 tightly press the right packing 6, and the installation or the replacement of packing is very convenient.

A cooling water jacket 7 is fixed on the outer side wall of the packing seat 1, and a space for containing circulating cooling water is formed inside the cooling water jacket 7. A water inlet pipe 14 and a water outlet pipe 15 which are communicated with the inside of the cooling water jacket 7 are fixed on the outer side wall of the cooling water jacket 7 and are used for connecting pipes of circulating cooling water equipment. The circulating cooling water can enter the cooling water jacket 7 from the water inlet pipe 14 and then flow out from the water outlet pipe 15, so that the whole packing seat 1 and packing can be cooled, the temperature of the rotating shaft 9 can be indirectly reduced, the sealing performance of the sealing device is ensured, and the service life of the sealing device is prolonged.

One end of the oil pipe 8 is detachably arranged on the middle spacer ring 2 and is mainly used for providing lubricating oil for the left packing 5 and the right packing 6; and the other end of the oil pipe 8 penetrates through the filler seat 1 and the cooling water jacket 7 and is used for connecting an external automatic oiling device. Through such setting, lubricating oil accessible oil pipe 8 flows into left side packing 5 and right side packing 6 to play the effect of self-lubricating, reduce the friction between packing and the pivot 9, in addition, also can form the oil film, play the effect of oil blanket, promote the sealed effect of packing to pivot 9. In addition, the oil pipe 8 penetrates through the cooling water jacket 7, so that cooling water in the cooling water jacket 7 can cool down lubricating oil passing through the oil pipe 8, the temperature of the packing seat 1 and the packing is further reduced, the sealing performance of the sealing device is further improved, and the service life of the sealing device is further prolonged.

In this embodiment, an annular oil passage 16 communicating with the oil pipe 8 is provided in the middle spacer ring 2, a plurality of left oil holes 17 communicating with the annular oil passage 16 are provided on the left side of the middle spacer ring 2, lubricating oil in the annular oil passage 16 can flow into the left packing 5 through the left oil holes 17, and the plurality of left oil holes 17 are arranged in an annular array structure. The right side of the middle spacer ring 2 is provided with a plurality of right oil holes 18 communicated with the annular oil duct 16, lubricating oil in the annular oil duct 16 can flow into the right packing 6 through the right oil holes 18, and the plurality of right oil holes 18 are arranged in an annular array structure. Through such setting for in the lubricating oil that flows out in the intermediate space ring 2 can get into left side packing 5 and right side packing 6 more evenly, so that the pressure of the packing of both sides is more even, thereby promotes the sealed effect of packing.

In the present embodiment, the outer circumferential side wall of the intermediate spacer ring 2 has a connection hole, and one end of the oil pipe 8 is screwed into the connection hole, and the connection hole communicates the oil pipe 8 with the annular oil passage 16. By this arrangement, it is convenient to mount the oil pipe 8 on the intermediate spacer ring 2, and also to replace the oil pipe 8 when the oil pipe 8 is damaged.

In this embodiment, the outer side wall of the cooling water jacket 7 is provided with a boss portion 19 for mounting the oil pipe 8, the oil pipe 8 also penetrates the boss portion 19, a seal ring 20 is mounted between the boss portion 19 and the oil pipe 8, and a compression nut 21 for compressing the seal ring 20 is screwed on the oil pipe 8. By arranging the sealing ring 20 and the compression nut 21, on one hand, the connection between the oil pipe 8 and the cooling water jacket 7 can be firmer, and on the other hand, the sealing effect between the oil pipe 8 and the cooling water jacket 7 can be enhanced through the sealing ring 20, so that the risk of cooling water flowing out from a gap between the oil pipe 8 and the cooling water jacket 7 is reduced.

The above embodiments are only for illustrating the technical solution of the present utility model and not for limiting the same, and although the present utility model has been described in detail with reference to the preferred embodiments, it should be understood by those skilled in the art that modifications and equivalents may be made thereto without departing from the spirit and scope of the technical solution of the present utility model, which is intended to be covered by the scope of the claims of the present utility model. The technology, shape, and construction parts of the present utility model, which are not described in detail, are known in the art.

Claims

1. The utility model provides a two sections packing seal device, its characterized in that includes packing seat (1), middle spacer ring (2), limit side press ring (3), gland (4), left side packing (5), right side packing (6), cooling water jacket (7) and oil pipe (8), the inside of packing seat (1) has the space that supplies pivot (9) to pass, the one end demountable installation of packing seat (1) is on the lateral wall of container (11), limit side press ring (3) demountable installation is in inside being close to of packing seat (1) one side of container (11), middle spacer ring (2) are fixed in the intermediate position of packing seat (1) inside, gland (4) demountable installation is in one end that packing seat (1) kept away from container (11), left side packing (5) are compressed tightly in packing seat (1), limit side press ring (3), middle spacer ring (2) with pivot (9) between, right side packing (6) are compressed tightly by packing seat (1), gland (7) are in the intermediate position of packing seat (1) inside being in the gland (1), one end of the oil pipe (8) is detachably arranged on the middle spacer ring (2) and used for providing lubricating oil for the left packing (5) and the right packing (6), and the other end of the oil pipe (8) penetrates through the packing seat (1) and the cooling water jacket (7).

2. The double-section packing sealing device according to claim 1, wherein an annular oil duct (16) communicated with the oil pipe (8) is arranged in the middle partition ring (2), a plurality of left oil holes (17) communicated with the annular oil duct (16) are arranged on the left side of the middle partition ring (2), the left oil holes (17) are arranged in an annular array structure, a plurality of right oil holes (18) communicated with the annular oil duct (16) are arranged on the right side of the middle partition ring (2), and the right oil holes (18) are arranged in an annular array structure.

3. The double-section packing sealing device according to claim 2, wherein a connecting hole is formed in the outer circumferential side wall of the intermediate spacer ring (2), one end of the oil pipe (8) is screwed into the connecting hole, and the connecting hole communicates the oil pipe (8) with the annular oil passage (16).

4. A double-section packing sealing device according to claim 3, characterized in that a boss part (19) for installing the oil pipe (8) is arranged on the outer side wall of the cooling water jacket (7), the oil pipe (8) penetrates through the boss part (19), a sealing ring (20) is installed between the boss part (19) and the oil pipe (8), and a compression nut (21) for compressing the sealing ring (20) is connected to the oil pipe (8) through threads.

5. The double-section packing sealing device according to claim 1, wherein a first flange (10) is fixed to the end of the packing seat (1) connected with the container (11), and the first flange (10) is mounted on the side wall of the container (11) through bolts.

6. The double-section packing sealing device according to claim 1, wherein a second flange (12) is fixed at one end of the packing seat (1) far away from the container (11), a third flange (13) is fixed on the packing gland (4), and the third flange (13) is connected with the second flange (12) through bolts.