CN115949755B - An ultra-high pressure gap filler combined reciprocating sealing device - Google Patents
An ultra-high pressure gap filler combined reciprocating sealing deviceInfo
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- CN115949755B CN115949755B CN202211736972.8A CN202211736972A CN115949755B CN 115949755 B CN115949755 B CN 115949755B CN 202211736972 A CN202211736972 A CN 202211736972A CN 115949755 B CN115949755 B CN 115949755B
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Abstract
本发明公开了一种超高压间隙填料组合式往复密封装置，包括固定在液缸体上的进液阀体和填料函体、固定在填料函体一端的填料压盖、以及柱塞、套筒，套筒内径略大于柱塞直径，填料函体上设置有略大于套筒外径且用于安装套筒的通孔，进液阀体上设置有阶梯孔，进液阀体上阶梯孔大端略大于套筒外径且用于安装套筒，小端略大于柱塞直径，填料压盖上设置有略大于柱塞直径的通孔；通过在套筒内壁设置若干迷宫泄压环形槽，使超高压往复泵中的介质在经过多个迷宫泄压环形槽的逐级泄压后压力有较大幅度的降低，然后再通过填料圈密封的进一步密封作用，大大增强了超高压往复泵的密封效果。
The present invention discloses an ultra-high pressure gap packing combined reciprocating sealing device, comprising a liquid inlet valve body and a stuffing box body fixed on a liquid cylinder body, a stuffing gland fixed at one end of the stuffing box body, a plunger and a sleeve, wherein the inner diameter of the sleeve is slightly larger than the diameter of the plunger, a through hole slightly larger than the outer diameter of the sleeve and used for installing the sleeve is provided on the stuffing box body, a stepped hole is provided on the liquid inlet valve body, the large end of the stepped hole on the liquid inlet valve body is slightly larger than the outer diameter of the sleeve and used for installing the sleeve, and the small end is slightly larger than the diameter of the plunger, and a through hole slightly larger than the diameter of the plunger is provided on the stuffing gland; by arranging a plurality of labyrinth pressure relief annular grooves on the inner wall of the sleeve, the pressure of the medium in the ultra-high pressure reciprocating pump is greatly reduced after the pressure is gradually relieved by the plurality of labyrinth pressure relief annular grooves, and then the medium is further sealed by the packing ring seal, thereby greatly enhancing the sealing effect of the ultra-high pressure reciprocating pump.
Description
Technical Field
The invention relates to the technical field of ultrahigh pressure sealing, in particular to an ultrahigh pressure gap filler combined type reciprocating sealing device.
Background
The device where the pressure of the transport medium exceeds 100MPa is generally considered to be an ultra-high pressure device. With the continuous progress of the high-pressure reciprocating pump technology, the high-pressure reciprocating pump with the pressure exceeding 140MPa is regarded as an ultrahigh-pressure reciprocating pump in the current high-pressure water jet cleaning industry. The ultra-high pressure sealing technology is the most critical technical difficulty in the ultra-high pressure reciprocating pump technology.
A high-pressure pump with medium pressure not more than 140MPa can obtain good sealing effect by adopting a packing seal, but an ultra-high pressure pump with pressure exceeding 140MPa is difficult to obtain satisfactory sealing effect by only using the packing seal, and the sealing effect is poorer when the pressure is higher, and the working pressure in various fields of national economy, such as the rust removal field of a high-pressure water ship, needs to reach more than 250MPa in many occasions along with the expansion of the application of the high-pressure water jet technology in China, so that the sealing problem of a high-pressure reciprocating pump under the ultra-high pressure working condition is urgently needed to be solved. In addition, the existing ultrahigh pressure sealing device also has a technical method for sealing by solely relying on an extremely tiny gap formed by a plunger and a sleeve matched with the plunger, but the sealing mode has very high requirements on processing technology and materials on one hand and medium cleanliness on the other hand, and is only applied to a vertical ultrahigh pressure reciprocating pump, and for a horizontal ultrahigh pressure reciprocating pump, the sleeve is easy to generate eccentric wear under the action of the dead weight of the plunger, so that the sealing effect is poor, and particularly, when the working occasion of over 140MPa is applied, the sealing effect is difficult to reach the working requirement.
Disclosure of Invention
Aiming at the problem that the existing ultrahigh pressure sealing device has poor sealing effect in working occasions exceeding 140MPa, the ultrahigh pressure gap packing combined type reciprocating sealing device is provided, and the labyrinth pressure relief annular groove seals are matched with packing ring seals, so that the pressure of a medium in an ultrahigh pressure reciprocating pump is greatly reduced after the medium is subjected to gradual pressure relief through a plurality of labyrinth pressure relief annular grooves, and then the sealing effect of the ultrahigh pressure reciprocating pump is enhanced through the further sealing effect of the packing ring seals.
In order to achieve the above purpose, the present invention provides the following technical solutions:
The utility model provides an ultra-high pressure clearance packing combination formula reciprocating sealing device, including fixing the feed liquor valve body and the packing box body on the liquid cylinder body, fix the gland of packing box body one end, and plunger, sleeve, the sleeve internal diameter is slightly greater than the plunger diameter, be provided with the through-hole that is slightly greater than the sleeve external diameter and is used for installing the sleeve on the packing box body, be provided with the shoulder hole on the feed liquor valve body, the shoulder hole big end is slightly greater than the sleeve external diameter and is used for installing the sleeve on the feed liquor valve body, the tip is slightly greater than the plunger diameter, be provided with the through-hole that is slightly greater than the plunger diameter on the gland, the through-hole on the packing box body, the shoulder hole on the feed liquor valve body, all coaxial setting between sleeve and the plunger;
The packing box body is fixed on one side of the liquid inlet valve body, the plunger sequentially penetrates through and is movably connected with the through hole on the packing gland, the through hole on the packing box body and the stepped hole on the liquid inlet valve body, an annular cavity is formed among the large end of the stepped hole on the liquid inlet valve body, the through hole on the packing box body and the plunger, a spring, a sleeve, a supporting ring, a packing ring, a supporting ring and a guide sleeve are sequentially arranged in the annular cavity, the spring is next to a step Kong Kongjian on the liquid inlet valve body, the guide sleeve is next to the packing gland, and the sleeve, the supporting ring, the packing ring, the supporting ring and the guide sleeve are limited in the annular cavity through elastic force generated by deformation of the spring;
the inner wall of the sleeve is provided with a plurality of labyrinth decompression annular grooves.
Further, be provided with axial pressure equalizing groove and first O type sealing washer on the sleeve outer wall, axial pressure equalizing groove sets up the one end that is close to the spring, and first O type sealing washer sets up the one end of keeping away from the spring, and feed liquor valve body and stuffing box body circumferencial direction junction are provided with the second O type sealing washer.
Furthermore, the end face of the liquid inlet valve body, which is contacted with the stuffing box body, is arranged as a conical surface to form metal-to-metal contact seal.
Further, 2 axial equalizing grooves are symmetrically formed in the outer wall of the sleeve.
Further, a first axial flow passage is arranged on the stuffing box body, a radial flow passage with an opening at one end and a second axial flow passage which is communicated with the first axial flow passage and the radial flow passage are arranged on the stuffing press cover, the opening end of the radial flow passage is externally connected with a water tank, a third axial flow passage and a fourth axial flow passage which are communicated with the radial flow passage and the annular cavity are also arranged on the stuffing press cover and are respectively used for cooling water to flow into and out of the annular cavity, a Gellan ring is arranged between the stuffing press cover and the plunger, the Gellan ring is arranged on one side of the radial flow passage and is away from one side of the annular cavity, and a channel for providing cooling liquid for the first axial flow passage is arranged on the liquid cylinder body.
Further, the two ends of the first axial flow channel are respectively provided with a third O-shaped sealing ring, and the end face of the stuffing box body, which is contacted with the stuffing gland, is provided with a fourth O-shaped sealing ring.
Further, the third axial flow channel is clung to the plunger and is arranged in a circular shape, a disc flow channel is arranged on the end face of the stuffing box body, which is in contact with the stuffing gland, the diameter of the disc flow channel is smaller than the inner diameter of the fourth O-shaped sealing ring, the disc flow channel is concentric with the plunger and is communicated with the annular cavity, and the fourth axial flow channel is communicated with the disc flow channel and the radial flow channel.
Further, 7 labyrinth decompression annular grooves are formed in the inner wall of the sleeve.
Further, the stuffing box body and the stuffing gland are sequentially fixed on the hydraulic cylinder body through fastening bolts.
Further, the packing rings are provided with 2.
The beneficial effects of the invention are as follows:
1. According to the invention, the plurality of labyrinth decompression annular grooves are formed in the inner wall of the sleeve, so that the pressure of a medium in the ultrahigh-pressure reciprocating pump is reduced at each labyrinth decompression annular groove when the medium flows through a gap between the plunger and the sleeve, the pressure is greatly reduced after the medium passes through the plurality of labyrinth decompression annular grooves and is subjected to gradual decompression, and then the sealing effect of the ultrahigh-pressure reciprocating pump is greatly enhanced through the further sealing effect of the packing ring, so that the sealing device is applicable to sealing in working occasions with the pressure exceeding 140 MPa.
2. According to the invention, the symmetrical 2 axial pressure equalizing grooves are arranged on the outer wall of the sleeve, high-pressure medium enters the groove-shaped space outside the sleeve through the axial pressure equalizing grooves, and when the inside of the sleeve is subjected to medium pressure to have a tendency of expansion, the outside of the sleeve is also subjected to pressure to prevent the sleeve from generating larger elastic deformation, so that the situation of sealing failure caused by overlarge gap between the sleeve and the plunger is prevented.
3. According to the invention, through the arrangement of the cooling flow channel, cooling water sequentially flows through the first axial flow channel, the second axial flow channel, the radial flow channel, the third axial flow channel, the annular cavity, the disc flow channel, the fourth axial flow channel, the radial flow channel and finally the water tank, wherein when the cooling water flows through the annular cavity, the packing ring and the plunger friction pair are cooled, the cooling water with heat flows back to the water tank, and meanwhile, a small amount of leaked high-pressure medium flows back to the water tank through the cooling flow channel, so that the packing ring is prevented from softening due to friction heating, the wear resistance of the packing ring is reduced, and the service life of the packing ring is prolonged.
4. In the invention, a combined sealing mode of metal-to-metal cone angle contact sealing and O-shaped ring sealing is adopted between the liquid inlet valve body and the stuffing box body and between the stuffing box body and the stuffing gland, and medium sealing and cooling water sealing are respectively carried out in an axial pressure equalizing groove, wherein the metal-to-metal cone angle contact sealing is a sealing pair formed by a metal edge with a cone angle and a metal plane, the stuffing box body and the stuffing gland are screwed tightly through a fastening bolt, and the contact surface of the liquid inlet valve body and the stuffing box body or the contact surface of the stuffing box body and the stuffing gland is in plastic deformation and is tightly attached, so that the sealing effect is achieved, the cone angle contact is smaller, plastic deformation is easier to produce in the axial pressure equalizing groove, and in addition, the first O-shaped sealing ring is used for sealing the medium in the axial pressure equalizing groove, and the third O-shaped sealing ring and the Gray ring are used for cooling sealing.
5. The invention solves the sealing problem of the ultra-high pressure plunger type reciprocating pump through the combined dynamic seal of the gap seal and the packing seal and the combined static seal of the metal-to-metal cone angle contact seal and the O-shaped ring seal, thereby greatly increasing the sealing reliability.
Drawings
FIG. 1 is a schematic view of a combined reciprocating sealing device for ultra-high pressure gap filler in the invention.
FIG. 2 is a schematic view of a cooling flow channel according to the present invention.
Fig. 3 is an enlarged schematic view of a plunger according to the present invention.
In the figure, a hydraulic cylinder body, a liquid inlet valve body, a plunger, a 4-shaped packing box body, a 41-shaped first axial flow passage, a 42-shaped disc flow passage, a 5-shaped packing gland, a 51-shaped second axial flow passage, a 52-shaped radial flow passage, a 53-shaped third axial flow passage, a 54-shaped fourth axial flow passage, a 6-shaped sleeve, a 61-shaped labyrinth pressure relief annular groove, a 62-shaped axial pressure equalizing groove, a 7-shaped spring, an 8-shaped packing ring, a 9-shaped supporting ring, a 10-shaped guiding sleeve, a 11-shaped fastening bolt, a 121-shaped first O-shaped sealing ring, a 122-shaped second O-shaped sealing ring, a 123-shaped third O-shaped sealing ring, a 124-shaped fourth O-shaped sealing ring, a 13-shaped Gray ring, a 14-shaped annular cavity are arranged.
Detailed Description
The present invention will be described in further detail with reference to the drawings, but the scope of the invention is not limited thereto.
Referring to fig. 1-3, the ultrahigh pressure gap packing combined type reciprocating sealing device comprises a liquid inlet valve body 2 and a packing box body 4 which are fixed on a liquid cylinder body 1, a packing gland 5 which is fixed at one end of the packing box body 4, a plunger 3 and a sleeve 6, wherein the packing box body 4 and the packing gland 5 are sequentially fixed on the liquid cylinder body 1 through a fastening bolt 11, the inner diameter of the sleeve 6 is slightly larger than the diameter of the plunger 3, a through hole which is slightly larger than the outer diameter of the sleeve 6 and is used for installing the sleeve 6 is arranged on the packing box body 4, a stepped hole is arranged on the liquid inlet valve body 2, the large end of the stepped hole on the liquid inlet valve body 2 is slightly larger than the outer diameter of the sleeve 6 and is used for installing the sleeve 6, the small end of the stepped hole is slightly larger than the diameter of the plunger 3, a through hole which is slightly larger than the diameter of the plunger 3 is arranged on the packing gland 5, and the through hole on the packing gland 5, the through hole on the packing box body 4, the stepped hole on the liquid inlet valve body 2, the sleeve 6 and the plunger 3 are all coaxially arranged.
The packing box body 4 is fixed on one side of the liquid inlet valve body 2, the plunger 3 sequentially penetrates through the through hole on the packing gland 5 and is movably connected with the through hole on the packing box body 4, and a stepped hole on the liquid inlet valve body 2, an annular cavity 14 is formed among the large end of the stepped hole on the liquid inlet valve body 2, the through hole on the packing box body 4 and the plunger 3, a spring 7, a sleeve 6, a supporting ring 9, a packing ring 8, the supporting ring 9 and a guide sleeve 10 are sequentially arranged in the annular cavity 14, the packing ring 8 is provided with two, the spring 7 is next to a step Kong Kongjian on the liquid inlet valve body 2, the guide sleeve 10 is next to the packing gland 5, and the sleeve 6, the supporting ring 9, the packing ring 8, the supporting ring 9 and the guide sleeve 10 are limited in the annular cavity 14 through elasticity generated by deformation of the spring 7.
The inner wall of the sleeve 6 is provided with 7 labyrinth decompression annular grooves 61, the pressure of a medium in the ultrahigh pressure reciprocating pump is reduced at each labyrinth decompression annular groove when flowing through a gap between the plunger and the sleeve, the pressure is greatly reduced after the pressure is decompressed step by step through a plurality of labyrinth decompression annular grooves, and then the sealing effect of the ultrahigh pressure reciprocating pump is greatly enhanced through the further sealing effect of the packing ring. The sleeve 6 is symmetrically provided with 2 axial pressure equalizing grooves 62 and a first O-shaped sealing ring 121 on the outer wall, the axial pressure equalizing grooves 62 are arranged at one end close to the spring 7, the first O-shaped sealing ring 121 is arranged at one end far away from the spring 7, a high-pressure medium enters a groove-shaped space outside the sleeve through the axial pressure equalizing grooves, when the inside of the sleeve is subjected to expansion trend of the medium pressure, the outside of the sleeve is also subjected to pressure to prevent the sleeve from larger elastic deformation, the situation of sealing failure caused by overlarge gap between the sleeve and the plunger is prevented, the second O-shaped sealing ring 122 is arranged at the connecting position of the liquid inlet valve body 2 and the stuffing box 4 in the circumferential direction, the end face of the liquid inlet valve body 2, which is in contact with the stuffing box 4, is provided with a conical surface, and forms metal-to-metal conical angle contact seal with the end face of the stuffing box 4, the metal-to-metal conical angle contact seal is a sealing pair formed by a metal edge with a metal plane with the conical angle, so that a good sealing effect can be formed on the ultrahigh-pressure medium, and the sealing form a sealing form with the sealing form formed by sealing combination of the sealing ring, so that the reliability of ultrahigh-pressure static sealing is greatly enhanced.
The packing box body 4 is provided with a first axial flow passage 41, both ends of the first axial flow passage 41 are provided with third O-shaped sealing rings 123, the packing gland 5 is provided with a radial flow passage 52 with an opening at one end and a second axial flow passage 51 which is communicated with the first axial flow passage 41 and the radial flow passage 52, the opening end of the radial flow passage 52 is externally connected with a water tank, the packing gland 5 is also provided with a third axial flow passage 53 and a fourth axial flow passage 54 which are communicated with the radial flow passage 52 and the annular cavity 14, and the third axial flow passage 53 and the fourth axial flow passage 54 are respectively used for cooling water to flow into and out of the annular cavity 14; the fourth O-shaped sealing ring 124 is arranged on the end face of the stuffing box body 4, which is contacted with the stuffing gland 5, the third axial flow channel 53 is tightly attached to the plunger 3 and is arranged in a circular ring shape, the end face of the stuffing box body 4, which is contacted with the stuffing gland 5, is provided with the disc flow channel 42, the diameter of the disc flow channel 42 is smaller than the inner diameter of the fourth O-shaped sealing ring 124, the disc flow channel 42 is concentric with the plunger 3 and is communicated with the annular cavity 14, the fourth axial flow channel 54 is communicated with the disc flow channel 42 and the radial flow channel 52, the outermost side of the stuffing box body 4 is provided with a conical bulge, a metal-to-metal cone angle contact seal is formed on the end face of the stuffing gland 5, the metal-to-metal cone angle contact seal can form a good seal effect on an ultrahigh pressure medium, the seal form formed by the seal combination with the O-shaped ring seal greatly enhances the reliability of the ultrahigh pressure static seal, the packing 13 is arranged between the stuffing gland 5 and the plunger 3, the Gelai circle 13 is arranged on one side of the radial flow passage 52 and is far away from the annular cavity 14, a channel for providing cooling liquid for the first axial flow passage 41 is arranged on the liquid cylinder body 1, the cooling water sequentially flows through the first axial flow passage, the second axial flow passage, the radial flow passage, the third axial flow passage, the annular cavity, the disc flow passage, the fourth axial flow passage and the radial flow passage, and finally flows to the water tank, wherein when the cooling water flows through the annular cavity, the packing circle and the plunger friction pair are cooled, the cooling water with heat flows back to the water tank, and a small amount of leaked high-pressure medium also flows back to the water tank through the cooling flow passage.
The examples are preferred embodiments of the present invention, but the present invention is not limited to the above-described embodiments, and any obvious modifications, substitutions or variations that can be made by one skilled in the art without departing from the spirit of the present invention are within the scope of the present invention.
Claims (10)
1. The ultrahigh-pressure gap filler combined type reciprocating sealing device is characterized by comprising a liquid inlet valve body (2) and a filler box body (4) which are fixed on a liquid cylinder body (1), a filler gland (5) which is fixed at one end of the filler box body (4), a plunger (3) and a sleeve (6), wherein the inner diameter of the sleeve (6) is slightly larger than the diameter of the plunger (3), a through hole which is slightly larger than the outer diameter of the sleeve (6) and is used for installing the sleeve (6) is arranged on the filler box body (4), a stepped hole is formed in the liquid inlet valve body (2), the large end of the stepped hole on the liquid inlet valve body (2) is slightly larger than the outer diameter of the sleeve (6) and is used for installing the sleeve (6), the small end of the stepped hole is slightly larger than the diameter of the plunger (3), and the through hole which is slightly larger than the diameter of the plunger (3) is arranged on the filler gland (5), and the through hole on the filler gland (5), the through hole on the filler box body (4), the stepped hole on the liquid inlet valve body (2) and the stepped hole between the sleeve (6) and the plunger (3) are coaxially arranged.
The packing box body (4) is fixed on one side of the liquid inlet valve body (2), the plunger (3) sequentially penetrates through and is movably connected with a through hole on the packing gland (5), the through hole on the packing box body (4) and a stepped hole on the liquid inlet valve body (2), an annular cavity (14) is formed among the stepped hole large end on the liquid inlet valve body (2), the through hole on the packing box body (4) and the plunger (3), a spring (7), a sleeve (6), a supporting ring (9), a packing ring (8), a supporting ring (9) and a guide sleeve (10) are sequentially arranged in the annular cavity (14), the spring (7) is close to a step Kong Kongjian on the liquid inlet valve body (2), the guide sleeve (10) is close to the packing gland (5), and the sleeve (6), the supporting ring (9), the packing ring (8), the supporting ring (9) and the guide sleeve (10) are limited in the annular cavity (14) through elasticity generated by deformation of the spring (7);
the inner wall of the sleeve (6) is provided with a plurality of labyrinth decompression annular grooves (61).
2. The ultra-high pressure gap filler combined type reciprocating sealing device according to claim 1, wherein an axial pressure equalizing groove (62) and a first O-shaped sealing ring (121) are arranged on the outer wall of the sleeve (6), the axial pressure equalizing groove (62) is arranged at one end close to the spring (7), the first O-shaped sealing ring (121) is arranged at one end far away from the spring (7), and a second O-shaped sealing ring (122) is arranged at the joint of the liquid inlet valve body (2) and the stuffing box body (4) in the circumferential direction.
3. The ultra-high pressure gap filler combined type reciprocating sealing device according to claim 2 is characterized in that the end face of the liquid inlet valve body (2) contacted with the filler box body (4) is arranged to be a conical surface, and a metal-to-metal conical angle contact seal is formed between the end face of the liquid inlet valve body and the end face of the filler box body (4).
4. The ultra-high pressure gap filler combined type reciprocating sealing device according to claim 2 is characterized in that 2 axial pressure equalizing grooves (62) are symmetrically arranged on the outer wall of the sleeve (6).
5. The ultra-high pressure gap packing combined type reciprocating sealing device according to claim 1 is characterized in that a first axial flow passage (41) is arranged on the packing box body (4), a radial flow passage (52) with one end open and a second axial flow passage (51) communicated with the first axial flow passage (41) and the radial flow passage (52) are arranged on the packing box body (5), a water tank is externally connected with the open end of the radial flow passage (52), a third axial flow passage (53) and a fourth axial flow passage (54) communicated with the radial flow passage (52) and the annular cavity (14) are further arranged on the packing box body (5) and are respectively used for cooling water to flow into and out of the annular cavity (14), a gray ring (13) is arranged between the packing box body (5) and the plunger (3), the gray ring (13) is arranged on one side of the radial flow passage (52) and is far away from the annular cavity (14), and a channel for providing cooling liquid for the first axial flow passage (41) is arranged on the liquid cylinder body (1).
6. The ultra-high pressure gap filler combined type reciprocating sealing device according to claim 5, wherein the third O-shaped sealing rings (123) are arranged at the two ends of the first axial flow channel (41), and the fourth O-shaped sealing rings (124) are arranged on the end face, which is in contact with the filler gland (5), of the filler box body (4).
7. The ultra-high pressure gap packing combined type reciprocating sealing device of claim 6, wherein the third axial flow channel (53) is tightly attached to the plunger (3) and is in a circular shape, a disc flow channel (42) is arranged on the end face of the packing box body (4) which is in contact with the packing gland (5), the diameter of the disc flow channel (42) is smaller than the inner diameter of a fourth O-shaped sealing ring (124), the disc flow channel (42) is concentric with the plunger (3) and is communicated with the annular cavity (14), and the fourth axial flow channel (54) is communicated with the disc flow channel (42) and the radial flow channel (52).
8. The ultra-high pressure gap filler combined type reciprocating sealing device of claim 7, wherein conical protrusions are arranged on the end face of the packing box body (4) and at the outermost side of the disc flow channel (42), and form metal-to-metal cone angle contact sealing with the end face of the packing gland (5).
9. The ultra-high pressure gap filler combined type reciprocating sealing device is characterized in that 7 labyrinth decompression annular grooves (61) are formed in the inner wall of the sleeve (6), and 2 filler rings (8) are arranged.
10. The ultra-high pressure gap packing combined type reciprocating sealing device according to claim 1 is characterized in that a packing box body (4) and a packing gland (5) are sequentially fixed on a hydraulic cylinder body (1) through fastening bolts (11).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202211736972.8A CN115949755B (en) | 2022-12-30 | 2022-12-30 | An ultra-high pressure gap filler combined reciprocating sealing device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202211736972.8A CN115949755B (en) | 2022-12-30 | 2022-12-30 | An ultra-high pressure gap filler combined reciprocating sealing device |
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| Publication Number | Publication Date |
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| CN115949755A CN115949755A (en) | 2023-04-11 |
| CN115949755B true CN115949755B (en) | 2025-09-26 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN202211736972.8A Active CN115949755B (en) | 2022-12-30 | 2022-12-30 | An ultra-high pressure gap filler combined reciprocating sealing device |
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Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN117345611B (en) * | 2023-10-25 | 2024-02-20 | 上海迈克孚生物科技有限公司 | Automatic compensation type ultrahigh pressure fluid static sealing device |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103759010A (en) * | 2014-01-21 | 2014-04-30 | 中国成达工程有限公司 | Packing shaft seal structure for high-pressure reciprocation pump |
| CN205371627U (en) * | 2015-12-30 | 2016-07-06 | 郑州运达造纸设备有限公司 | Filler seal structure |
Family Cites Families (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US8100407B2 (en) * | 2004-03-11 | 2012-01-24 | Stanton Eddie N | Packing cartridges and pressure-dampening elements for plunger-type pumps |
| CN205918577U (en) * | 2016-08-10 | 2017-02-01 | 天津海威斯特高压泵制造有限公司 | A novel packing box for high -pressure fluid pump |
| DE102018203266A1 (en) * | 2018-03-06 | 2019-09-12 | Robert Bosch Gmbh | Stuffing box seal, axial piston pump with a stuffing box seal and actuator with a stuffing box seal |
| CN214699190U (en) * | 2021-05-27 | 2021-11-12 | 重庆水泵厂有限责任公司 | Sealed self-adaptation stuffing box |
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2022
- 2022-12-30 CN CN202211736972.8A patent/CN115949755B/en active Active
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103759010A (en) * | 2014-01-21 | 2014-04-30 | 中国成达工程有限公司 | Packing shaft seal structure for high-pressure reciprocation pump |
| CN205371627U (en) * | 2015-12-30 | 2016-07-06 | 郑州运达造纸设备有限公司 | Filler seal structure |
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