CN113028066A - Seal assembly for main pump of nuclear power station - Google Patents
Seal assembly for main pump of nuclear power station Download PDFInfo
- Publication number
- CN113028066A CN113028066A CN202110393871.4A CN202110393871A CN113028066A CN 113028066 A CN113028066 A CN 113028066A CN 202110393871 A CN202110393871 A CN 202110393871A CN 113028066 A CN113028066 A CN 113028066A
- Authority
- CN
- China
- Prior art keywords
- ring
- wall
- groove
- fixedly connected
- main pump
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Granted
Links
- 230000003068 static effect Effects 0.000 claims abstract description 48
- 238000007789 sealing Methods 0.000 claims description 21
- 238000013016 damping Methods 0.000 claims description 2
- 230000000694 effects Effects 0.000 description 5
- 238000006073 displacement reaction Methods 0.000 description 3
- 230000000712 assembly Effects 0.000 description 2
- 238000000429 assembly Methods 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 238000010030 laminating Methods 0.000 description 2
- 235000017166 Bambusa arundinacea Nutrition 0.000 description 1
- 235000017491 Bambusa tulda Nutrition 0.000 description 1
- 241001330002 Bambuseae Species 0.000 description 1
- 235000015334 Phyllostachys viridis Nutrition 0.000 description 1
- 238000010521 absorption reaction Methods 0.000 description 1
- 239000011425 bamboo Substances 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000002093 peripheral effect Effects 0.000 description 1
- 230000035939 shock Effects 0.000 description 1
Images
Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16J—PISTONS; CYLINDERS; SEALINGS
- F16J15/00—Sealings
- F16J15/16—Sealings between relatively-moving surfaces
- F16J15/34—Sealings between relatively-moving surfaces with slip-ring pressed against a more or less radial face on one member
- F16J15/3436—Pressing means
- F16J15/3452—Pressing means the pressing force resulting from the action of a spring
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04B—POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS
- F04B53/00—Component parts, details or accessories not provided for in, or of interest apart from, groups F04B1/00 - F04B23/00 or F04B39/00 - F04B47/00
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16J—PISTONS; CYLINDERS; SEALINGS
- F16J15/00—Sealings
- F16J15/16—Sealings between relatively-moving surfaces
- F16J15/34—Sealings between relatively-moving surfaces with slip-ring pressed against a more or less radial face on one member
- F16J15/3464—Mounting of the seal
- F16J15/3472—Means for centering or aligning the contacting faces
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16J—PISTONS; CYLINDERS; SEALINGS
- F16J15/00—Sealings
- F16J15/16—Sealings between relatively-moving surfaces
- F16J15/34—Sealings between relatively-moving surfaces with slip-ring pressed against a more or less radial face on one member
- F16J15/38—Sealings between relatively-moving surfaces with slip-ring pressed against a more or less radial face on one member sealed by a packing
Landscapes
- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Mechanical Sealing (AREA)
- Structures Of Non-Positive Displacement Pumps (AREA)
Abstract
The invention discloses a seal assembly for a nuclear power station main pump, which comprises: a main pump housing; a rotating shaft is arranged in the main pump shell; the shaft sleeve is sleeved outside the rotating shaft; a static ring mechanism is fixedly connected to one side of the inner cavity of the main pump shell; the static ring mechanism is connected with a dynamic ring mechanism in an abutting mode; the movable ring component comprises a movable ring groove; the movable ring groove is arranged on the bottom surface of the movable ring seat; a plurality of first elastic pieces are circumferentially arrayed on the wall of the movable ring groove around the center of the movable ring groove; one end of the first elastic piece is fixedly connected with the groove wall at one side of the movable ring groove; the other end of the first elastic part is fixedly connected with a butting ring; a plurality of butting columns are circumferentially arrayed on one side of the butting ring around the center of the butting ring; the other side of the groove wall of the movable ring groove is open and is provided with a positioning ring; one side of the positioning ring is provided with an annular groove; the bottom of the annular groove is provided with a plurality of positioning holes matched with the abutting columns; one side of the abutting column is provided with a movable ring; the inner wall and the outer wall of the movable ring are in sliding connection with the groove wall of the annular groove; the leakage of the mechanical seal of the main pump can be avoided, and the safe and stable operation of the main pump is ensured.
Description
Technical Field
The invention relates to the technical field of main pump sealing, in particular to a sealing assembly for a main pump of a nuclear power station.
Background
The nuclear power station reactor main pump is the core part of nuclear power station, and in prior art, the seal assembly to the main pump adopts mechanical seal's mode mostly, but the medium leakage phenomenon frequently appears in current main pump mechanical seal assembly, causes the constitution personnel dangerous easily to the shutdown of nuclear power station overhauls and seriously influences production efficiency.
The mechanical seal is a shaft seal device of a rotating machine. Since the drive shaft extends through the interior and exterior of the apparatus, a circumferential gap exists between the shaft and the apparatus through which the medium in the apparatus leaks outwardly, and air leaks into the apparatus if the pressure in the apparatus is below atmospheric pressure.
Therefore, how to avoid the leakage of the mechanical seal of the main pump and ensure the safe and stable operation of the main pump becomes a problem to be solved urgently.
Disclosure of Invention
The invention aims to provide a seal assembly for a main pump of a nuclear power station, which is used for solving the problems in the prior art, avoiding the mechanical seal leakage of the main pump and ensuring the safe and stable operation of the main pump.
In order to achieve the purpose, the invention provides the following scheme: the invention provides a seal assembly for a nuclear power station main pump, which comprises: a main pump housing; a rotating shaft is arranged in the main pump shell; the rotating shaft is sleeved with a shaft sleeve; a static ring mechanism is fixedly connected to one side of the inner cavity of the main pump shell; the static ring mechanism is connected with a dynamic ring mechanism in an abutting mode;
the static ring mechanism comprises a static ring seat; the static ring seat is of an annular structure and is sleeved at one end of the shaft sleeve; the outer wall of the static ring seat is fixedly connected with the inner wall of the main pump shell; a static ring component is fixedly connected to one side of the static ring seat;
the movable ring mechanism comprises a locking assembly; the locking assembly is arranged at the other end of the shaft sleeve; a movable ring seat is fixedly connected to the side surface of the locking assembly; a movable ring component is arranged on one side of the movable ring seat close to the static ring component;
the movable ring component comprises a movable ring groove; the movable ring groove is formed in the inner wall of the movable ring seat; a plurality of first elastic pieces are circumferentially arrayed on the wall of the movable ring groove around the center of the movable ring groove; one end of the first elastic piece is fixedly connected with the groove wall on one side of the movable ring groove; the other end of the first elastic part is fixedly connected with a butting ring; a plurality of abutting columns are circumferentially arrayed on one side of the abutting ring around the center of the abutting ring; the other side of the groove wall of the movable ring groove is open and is provided with a positioning ring; an annular groove is formed in the annular wall on one side of the positioning ring; a plurality of positioning holes matched with the abutting columns are formed in the bottoms of the annular grooves; a movable ring is arranged on one side of the abutting column; the inner wall and the outer wall of the movable ring are in sliding connection with the groove wall of the annular groove.
Preferably, the static ring seat is fixedly connected with the inner wall of the main pump shell, so that the static state of the static ring seat is guaranteed, the existence of a gap is eliminated, and the possibility of leakage of a medium along the static ring seat and the inner wall of the main pump shell is thoroughly eliminated.
Preferably, the elastic assemblies act on the abutting ring together, so that the condition that the abutting ring is inclined due to the fact that a single spring applies force to the abutting ring locally and the medium is leaked due to the fact that the movable ring is inclined is avoided; the locating ring that sets up can not only play the effect of supplementary rotating ring location, can also play secondary seal's effect, prevents that the medium from revealing from whole rotating ring subassembly and shaft sleeve junction.
The stationary ring assembly comprises an elastic pad; a static ring groove is formed in one side, close to the dynamic ring assembly, of the inner wall of the static ring seat; one side of the elastic cushion is fixedly connected with the wall of the static ring groove; the other side of the elastic cushion is fixedly connected with a static ring; the static ring end face is connected with the dynamic ring end face in an abutting mode.
Preferably, set up the cushion and can play the quiet ring of follow that prevents the medium and quiet ring groove junction reveal, can also make quiet ring have a thrust towards the rotating ring, guarantee when the pivot takes place circumferential displacement, the rotating ring can remain the rotation laminating throughout with the contact surface of quiet ring.
The locking assembly comprises a locking ring; the locking ring is sleeved on the shaft sleeve; a plurality of bolts are fixedly connected to the outer wall of the locking ring at equal intervals in the circumferential direction; one end of the bolt sequentially penetrates through the locking ring and the shaft sleeve and is fixedly connected with the rotating shaft; the side surface of the locking ring is fixedly connected with the movable ring seat.
Preferably, the locking ring that sets up passes through the bolt fastening in the pivot, not only can drive the rotating ring subassembly and rotate, can also closely fix axle sleeve and pivot, prevents the slippage of axle sleeve in the pivot.
A first O-shaped sealing ring is arranged between the inner wall of the positioning ring and the shaft sleeve.
Preferably, a first O-ring seal is provided to prevent leakage of media from the hub to the retaining ring connection.
An annular sealing gasket is sleeved outside the abutting column; one side of the annular sealing gasket is fixedly connected with the side wall of the abutting ring; the other side of the annular sealing gasket is fixedly connected with the side face of the positioning ring.
Preferably, the annular sealing gasket not only plays a role in assisting the movable ring to abut against the static ring, but also can prevent the medium from leaking from the positioning hole.
A plurality of shock-absorbing through holes are formed in the side face of the elastic pad.
Preferably, the shock absorption through holes are arranged to enhance the deformation capacity of the elastic cushion.
The first elastic piece comprises a positioning column and a positioning cylinder; one end of the positioning column is fixedly connected with the wall of the movable ring groove; one side of the positioning cylinder is provided with a sliding connection hole matched with the positioning column; the other end of the positioning column is in sliding connection with the inner wall of the sliding connection hole; the other side of the positioning cylinder is fixedly connected with a connecting plate; the side surface of the connecting plate is fixedly connected with the abutting ring; and the positioning column and the positioning cylinder are sleeved with abutting springs.
Preferably, the reference column mutually supports with a location section of thick bamboo and can realize the stable displacement of connecting plate, prevents the emergence of the connecting plate slope condition.
The inner wall of the movable ring seat is provided with an annular groove; a second O-shaped sealing ring is arranged in the annular groove; and the second O-shaped sealing ring is respectively connected with the wall of the annular groove and the shaft sleeve in a butting way.
Preferably, the arrangement of the second O-shaped sealing ring improves the sealing performance between the movable ring seat and the shaft sleeve.
The invention discloses the following technical effects: the elastic assemblies are arranged to act on the abutting ring together, so that the condition that the abutting ring is inclined due to the fact that a single spring applies force to the abutting ring locally and medium leakage is caused due to the fact that the movable ring is inclined is avoided; the holding ring can not only play the effect of supplementary rotating ring location, can also play secondary seal's effect, prevents that the medium from revealing from whole rotating ring subassembly and shaft sleeve junction. Set up the cushion and can play the follow quiet ring that prevents the medium and quiet ring groove junction reveal, can also make quiet ring have a thrust towards the rotating ring, guarantee when the pivot takes place circumferential displacement, the rotating ring can remain the rotatory laminating throughout with the contact surface of quiet ring. The locking ring that sets up passes through the bolt fastening in the pivot, not only can drive the rotating ring subassembly and rotate, can also closely fix axle sleeve and pivot, prevents the slippage of axle sleeve in the pivot.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings needed to be used in the embodiments will be briefly described below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and it is obvious for those skilled in the art to obtain other drawings without inventive exercise.
FIG. 1 is a schematic structural diagram of the present invention.
FIG. 2 is a schematic structural diagram of the movable ring seat of the present invention.
FIG. 3 is a schematic view of the retaining ring of the present invention.
FIG. 4 is a schematic view of the structure of the elastic pad of the present invention.
Fig. 5 is a partial enlarged view of a 1.
Fig. 6 is a partial enlarged view of a 2.
The main pump comprises a main pump shell, a main pump shaft, a.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
In order to make the aforementioned objects, features and advantages of the present invention comprehensible, embodiments accompanied with figures are described in further detail below.
The invention provides a seal assembly for a nuclear power station main pump, which comprises: a main pump housing 1; a rotating shaft 2 is arranged in the main pump shell 1; the shaft sleeve 3 is sleeved outside the rotating shaft 2; a static ring mechanism is fixedly connected to one side of the inner cavity of the main pump shell 1; the static ring mechanism is connected with a dynamic ring mechanism in an abutting mode;
the static ring mechanism comprises a static ring seat 4; the static ring seat 4 is of an annular structure and is sleeved at one end of the shaft sleeve 2; the outer wall of the static ring seat 4 is fixedly connected with the inner wall of the main pump shell 1; a static ring component is fixedly connected to one side of the static ring seat 4;
the movable ring mechanism comprises a locking assembly; the locking assembly is arranged at the other end of the shaft sleeve 2; a movable ring seat 5 is fixedly connected to the side surface of the locking component; a movable ring component is arranged on one side, close to the stationary ring component, of the movable ring seat 5;
the moving ring component comprises a moving ring groove 6; the movable ring groove 6 is formed in the inner wall of the movable ring seat 5; a plurality of first elastic pieces are circumferentially arrayed on the wall of the movable ring groove 6 around the center of the movable ring groove 6; one end of the first elastic piece is fixedly connected with the groove wall on one side of the movable ring groove 6; the other end of the first elastic part is fixedly connected with a butting ring 7; a plurality of abutting columns 8 are circumferentially arrayed around the center of the abutting ring 7 on one side of the abutting ring 7; the other side of the groove wall of the movable ring groove 6 is open and is provided with a positioning ring 9; an annular groove 10 is formed in the annular wall on one side of the positioning ring 9; a plurality of positioning holes matched with the abutting columns 8 are formed in the bottoms of the annular grooves 10; a movable ring 11 is arranged on one side of the abutting column 8; the inner wall and the outer wall of the movable ring 11 are in sliding connection with the groove wall of the annular groove 10.
The stationary ring assembly includes an elastomeric pad 12; a static ring groove is formed in one side, close to the dynamic ring component, of the inner wall of the static ring seat 4; one side of the elastic cushion 12 is fixedly connected with the wall of the static ring groove; a stationary ring 13 is fixedly connected to the other side of the elastic cushion 12; the end face of the static ring 13 is connected with the end face of the dynamic ring 11 in an abutting mode.
The locking assembly comprises a locking ring 14; the locking ring 14 is sleeved on the shaft sleeve 3; a plurality of bolts 15 are fixedly connected to the outer wall of the locking ring 14 at equal intervals in the circumferential direction; one end of the bolt 15 sequentially penetrates through the locking ring 14 and the shaft sleeve 3 and is fixedly connected with the rotating shaft 2; the side surface of the locking ring 14 is fixedly connected with the movable ring 11.
A first O-ring 16 is arranged between the inner wall of the positioning ring 9 and the shaft sleeve 3.
An annular sealing gasket 17 is sleeved outside the abutting column 8; one side of the annular sealing gasket 17 is fixedly connected with the side wall of the abutting ring 8; the other side of the annular sealing gasket 17 is fixedly connected with the side surface of the positioning ring 9.
The side surface of the elastic cushion 12 is provided with a plurality of damping through holes.
The first elastic piece comprises a positioning column 18 and a positioning cylinder 19; one end of the positioning column 18 is fixedly connected with the groove wall of the movable ring groove 6; one side of the positioning cylinder 19 is provided with a sliding connection hole matched with the positioning column 18; the other end of the positioning column 18 is in sliding connection with the inner wall of the sliding connection hole; the other side of the positioning cylinder 19 is fixedly connected with a connecting plate 20; the side surface of the connecting plate 20 is fixedly connected with the abutting ring 7; an abutting spring 21 is sleeved outside the positioning column 18 and the positioning cylinder 19.
An annular groove is formed in the inner wall of the movable ring seat 5; a second O-shaped sealing ring 22 is arranged in the annular groove; the second O-ring 22 is connected with the groove wall of the annular groove and the shaft sleeve 3 in an abutting manner.
In one embodiment of the present invention, one side of the dynamic ring 11 abuts against the side surface of the static ring 13; the other side of the movable ring 11 is provided with a plurality of auxiliary grooves 23 matched with the abutting columns 8; the peripheral wall of the abutting column 8 is in sliding connection with the wall of the auxiliary groove 23; an auxiliary spring 24 is arranged in the auxiliary groove 23; one end of the auxiliary spring 24 is fixedly connected with the bottom of the auxiliary groove 23; the other end of the auxiliary spring 24 is fixedly connected with the end face of the abutting column 8; the auxiliary spring 24 can enhance the ability of the movable ring 11 to move along the circumferential direction of the rotating shaft 2, so that the movable ring 11 and the stationary ring 13 are always kept in a contact state.
In another embodiment of the present invention, the groove wall of the dynamic ring groove 6 is polygonal; the outer wall of the positioning ring 9 is a polygon matched with the groove wall of the movable ring groove 6; polygonal setting can be avoided holding ring 9 relies on reference column 18 and a locating cylinder 19 to rotate when rotating, makes the holding ring follow the rotating ring seat 5 and rotates, has avoided the relative rotation between holding ring 9 and the axle sleeve 3, prevents that the medium from revealing between holding ring 9 and the axle sleeve 3.
In the description of the present invention, it is to be understood that the terms "longitudinal", "lateral", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", and the like, indicate orientations or positional relationships based on those shown in the drawings, are merely for convenience of description of the present invention, and do not indicate or imply that the referenced devices or elements must have a particular orientation, be constructed and operated in a particular orientation, and thus, are not to be construed as limiting the present invention.
The above-described embodiments are merely illustrative of the preferred embodiments of the present invention, and do not limit the scope of the present invention, and various modifications and improvements of the technical solutions of the present invention can be made by those skilled in the art without departing from the spirit of the present invention, and the technical solutions of the present invention are within the scope of the present invention defined by the claims.
Claims (8)
1. The utility model provides a seal assembly for nuclear power plant main pump which characterized in that includes: a main pump housing (1); a rotating shaft (2) is arranged in the main pump shell (1); a shaft sleeve (3) is sleeved outside the rotating shaft (2); a static ring mechanism is fixedly connected to one side of the inner cavity of the main pump shell (1); the static ring mechanism is connected with a dynamic ring mechanism in an abutting mode;
the static ring mechanism comprises a static ring seat (4); the static ring seat (4) is of an annular structure and is sleeved at one end of the shaft sleeve (2); the outer wall of the static ring seat (4) is fixedly connected with the inner wall of the main pump shell (1); a static ring component is fixedly connected to one side of the static ring seat (4);
the movable ring mechanism comprises a locking assembly; the locking assembly is arranged at the other end of the shaft sleeve (2); a movable ring seat (5) is fixedly connected to the side surface of the locking component; a movable ring component is arranged on one side, close to the static ring component, of the movable ring seat (5);
the movable ring component comprises a movable ring groove (6); the movable ring groove (6) is formed in the inner wall of the movable ring seat (5); a plurality of first elastic pieces are circumferentially arrayed on the wall of the movable ring groove (6) around the center of the movable ring groove (6); one end of the first elastic piece is fixedly connected with the groove wall on one side of the movable ring groove (6); the other end of the first elastic part is fixedly connected with a butting ring (7); a plurality of abutting columns (8) are circumferentially arrayed around the center of the abutting ring (7) on one side of the abutting ring (7); the other side of the groove wall of the movable ring groove (6) is open and is provided with a positioning ring (9); an annular groove (10) is formed in the annular wall on one side of the positioning ring (9); a plurality of positioning holes matched with the abutting columns (8) are formed in the bottoms of the annular grooves (10); a movable ring (11) is arranged on one side of the abutting column (8); the inner wall and the outer wall of the movable ring (11) are in sliding connection with the groove wall of the annular groove (10).
2. The seal assembly for a nuclear power plant main pump according to claim 1, characterized in that: the stationary ring assembly includes an elastomeric pad (12); a static ring groove is formed in one side, close to the dynamic ring component, of the inner wall of the static ring seat (4); one side of the elastic cushion (12) is fixedly connected with the groove wall of the static ring groove; a static ring (13) is fixedly connected to the other side of the elastic cushion (12); the end face of the static ring (13) is connected with the end face of the dynamic ring (11) in an abutting mode.
3. The seal assembly for a nuclear power plant main pump according to claim 1, characterized in that: the locking assembly comprises a locking ring (14); the locking ring (14) is sleeved on the shaft sleeve (3); a plurality of bolts (15) are fixedly connected to the outer wall of the locking ring (14) at equal intervals in the circumferential direction; one end of the bolt (15) penetrates through the locking ring (14) and the shaft sleeve (3) in sequence and is fixedly connected with the rotating shaft (2); the side surface of the locking ring (14) is fixedly connected with the movable ring (11).
4. The seal assembly for a nuclear power plant main pump according to claim 1, characterized in that: a first O-shaped sealing ring (16) is arranged between the inner wall of the positioning ring (9) and the shaft sleeve (3).
5. The seal assembly for a nuclear power plant main pump according to claim 1, characterized in that: an annular sealing gasket (17) is sleeved outside the abutting column (8); one side of the annular sealing gasket (17) is fixedly connected with the side wall of the abutting ring (8); the other side of the annular sealing gasket (17) is fixedly connected with the side surface of the positioning ring (9).
6. The seal assembly for a nuclear power plant main pump according to claim 2, characterized in that: the side surface of the elastic pad (12) is provided with a plurality of damping through holes.
7. The seal assembly for a nuclear power plant main pump according to claim 1, characterized in that: the first elastic piece comprises a positioning column (18) and a positioning cylinder (19); one end of the positioning column (18) is fixedly connected with the wall of the movable ring groove (6); one side of the positioning cylinder (19) is provided with a sliding connection hole matched with the positioning column (18); the other end of the positioning column (18) is in sliding connection with the inner wall of the sliding connection hole; the other side of the positioning cylinder (19) is fixedly connected with a connecting plate (20); the side surface of the connecting plate (20) is fixedly connected with the abutting ring (7); and the positioning column (18) and the positioning cylinder (19) are sleeved with an abutting spring (21).
8. The seal assembly for a nuclear power plant main pump according to claim 1, characterized in that: an annular groove is formed in the inner wall of the movable ring seat (5); a second O-shaped sealing ring (22) is arranged in the annular groove; and the second O-shaped sealing ring (22) is respectively connected with the wall of the annular groove and the shaft sleeve (3) in an abutting mode.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110393871.4A CN113028066B (en) | 2021-04-13 | 2021-04-13 | Sealing assembly for main pump of nuclear power station |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110393871.4A CN113028066B (en) | 2021-04-13 | 2021-04-13 | Sealing assembly for main pump of nuclear power station |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN113028066A true CN113028066A (en) | 2021-06-25 |
| CN113028066B CN113028066B (en) | 2023-07-21 |
Family
ID=76456396
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202110393871.4A Active CN113028066B (en) | 2021-04-13 | 2021-04-13 | Sealing assembly for main pump of nuclear power station |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN113028066B (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN117780624A (en) * | 2024-02-26 | 2024-03-29 | 大庆文迪石油设备有限公司 | Adjustable mechanical seal structure for pump |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107061745A (en) * | 2017-05-24 | 2017-08-18 | 贵州大学 | A kind of Hydrodynamic transmission axial seal |
| CN107401616A (en) * | 2017-07-28 | 2017-11-28 | 丹东克隆集团有限责任公司 | Nuclear power low pressure safety injection pump mechanically-sealing apparatus |
| CN107750314A (en) * | 2015-06-18 | 2018-03-02 | 伊格尔博格曼德国有限公司 | Mechanically-sealing apparatus including unclamping protection device |
| CN108533755A (en) * | 2018-07-10 | 2018-09-14 | 拉法泵业科技（宁波）有限公司 | A kind of conventional mechanical sealing |
| CN110030383A (en) * | 2019-04-10 | 2019-07-19 | 艾志（南京）环保管接技术股份有限公司 | The interior liquid mechanical seal with axial floating pallet set |
| CN112178195A (en) * | 2020-10-09 | 2021-01-05 | 帕尔巴特机械(苏州)有限公司 | Container axial double-end-face split mechanical seal |
-
2021
- 2021-04-13 CN CN202110393871.4A patent/CN113028066B/en active Active
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107750314A (en) * | 2015-06-18 | 2018-03-02 | 伊格尔博格曼德国有限公司 | Mechanically-sealing apparatus including unclamping protection device |
| CN107061745A (en) * | 2017-05-24 | 2017-08-18 | 贵州大学 | A kind of Hydrodynamic transmission axial seal |
| CN107401616A (en) * | 2017-07-28 | 2017-11-28 | 丹东克隆集团有限责任公司 | Nuclear power low pressure safety injection pump mechanically-sealing apparatus |
| CN108533755A (en) * | 2018-07-10 | 2018-09-14 | 拉法泵业科技（宁波）有限公司 | A kind of conventional mechanical sealing |
| CN110030383A (en) * | 2019-04-10 | 2019-07-19 | 艾志（南京）环保管接技术股份有限公司 | The interior liquid mechanical seal with axial floating pallet set |
| DE202019104631U1 (en) * | 2019-04-10 | 2019-09-18 | Aigi Environmental Inc. | Seal for liquids with an axially floating support plate sleeve arranged inside |
| CN112178195A (en) * | 2020-10-09 | 2021-01-05 | 帕尔巴特机械(苏州)有限公司 | Container axial double-end-face split mechanical seal |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN117780624A (en) * | 2024-02-26 | 2024-03-29 | 大庆文迪石油设备有限公司 | Adjustable mechanical seal structure for pump |
| CN117780624B (en) * | 2024-02-26 | 2024-05-14 | 大庆文迪石油设备有限公司 | Adjustable mechanical seal structure for pump |
Also Published As
| Publication number | Publication date |
|---|---|
| CN113028066B (en) | 2023-07-21 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN113028066A (en) | Seal assembly for main pump of nuclear power station | |
| CN102966739A (en) | Bellows mechanical sealing device with self-circulation function | |
| CN106523348A (en) | Gear pump adopting impact-resistant type floating side plates | |
| CN205001248U (en) | Oxyhydrogen turbine of engine is unsteady ring sealing device of rayleigh slot type for pump | |
| CN215762412U (en) | Mechanical sealing device for slurry pump | |
| CN203627554U (en) | Wedge-shaped self-locking mechanical sealing device | |
| CN211398569U (en) | Nearly complete concentric non-contact carbocycle seal structure | |
| CN202468440U (en) | Mechanical seal device for pump with two end surfaces | |
| CN210510288U (en) | High-speed mechanical sealing mechanism | |
| CN202955235U (en) | Self-circulation corrugated pipe mechanical sealing device | |
| CN109488770B (en) | Double-end-face mechanical sealing device for nuclear power station containment heat-derived pump | |
| CN210034403U (en) | Cylindrical seal for gas turbine and turbocharger | |
| CN108980491B (en) | Damping formula rotary joint structure | |
| CN220749038U (en) | Sealing structure for water turbine | |
| CN213331661U (en) | Forced calibration circulating pump mechanical sealing device | |
| CN220622733U (en) | Sealing assembly for rotating shaft | |
| CN112815096A (en) | Sodium pump maintenance seal and use method thereof | |
| CN216768295U (en) | Integral QS is trinity reduction gear for hoist | |
| CN221503788U (en) | Ball bearing outer ring with positioning structure | |
| CN219655265U (en) | Dynamic pressure type bearing isolation seal | |
| CN212717970U (en) | Dynamic sealing device for rotating shaft | |
| CN113944758B (en) | Cascade linkage rotary feeding sealing device | |
| CN216045445U (en) | Anti-vibration mechanical sealing element | |
| CN211693522U (en) | Attach together formula mechanical seal device | |
| CN204437278U (en) | A kind of integral sealing means of oil hydraulic pump |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20240417 Address after: No. 7, Guangxian Road, Hanan Industrial New Town, Harbin Economic Development Zone, 150000 Heilongjiang Province Patentee after: Harbin Gaowei Electrical Equipment Manufacturing Co.,Ltd. Country or region after: China Address before: Wanghua District West Dandong Road 113001 Liaoning city of Fushun province. Patentee before: Liaoming Petrochemical University Country or region before: China |
|
| TR01 | Transfer of patent right |