CN109488770A - Nuclear power plant containment shell heat derives pump uses double end-face mechanical sealing device - Google Patents
Nuclear power plant containment shell heat derives pump uses double end-face mechanical sealing device Download PDFInfo
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- CN109488770A CN109488770A CN201811565536.2A CN201811565536A CN109488770A CN 109488770 A CN109488770 A CN 109488770A CN 201811565536 A CN201811565536 A CN 201811565536A CN 109488770 A CN109488770 A CN 109488770A
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- Prior art keywords
- ring
- stationary
- mechanical seal
- seat
- stationary seat
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- 238000007789 sealing Methods 0.000 title claims abstract description 43
- 210000004907 gland Anatomy 0.000 claims abstract description 45
- 230000003068 static effect Effects 0.000 claims abstract description 37
- 230000005540 biological transmission Effects 0.000 claims abstract description 6
- 230000013011 mating Effects 0.000 claims description 21
- 230000002265 prevention Effects 0.000 claims description 6
- 238000000034 method Methods 0.000 abstract description 2
- 238000009434 installation Methods 0.000 description 10
- 238000005452 bending Methods 0.000 description 3
- 238000010586 diagram Methods 0.000 description 2
- 230000000712 assembly Effects 0.000 description 1
- 238000000429 assembly Methods 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000003754 machining Methods 0.000 description 1
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
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- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Mechanical Sealing (AREA)
Abstract
Nuclear power plant containment shell heat derives pump double end-face mechanical sealing device, including side medium mechanical seal and atmospheric side mechanical seal of the present invention, internal gland, outer press cover, axle sleeve, shaft sleeve positioning structure, axle sleeve transmission mechanism；To compensate ring, the static components (A) of side medium mechanical seal are that compensation ring is mounted on internal gland (2), the static components (B) of atmospheric side mechanical seal are that compensation ring is mounted on outer press cover (3), form the two compensation face-to-face formula double end-face mechanical sealing devices of ring stationary ring, the static components (A, B) of side medium mechanical seal and atmospheric side mechanical seal are made of stationary ring, stationary ring O-ring seals, stationary seat, stationary ring O shape sliding sealing ring, spring, stationary seat stop pin.Its is compact-sized, combined member is few, and gland structure is simple, easy to process, assembly, torque transfer reliability is high, further satisfaction high reliability request of the nuclear power station to mechanical sealing device used for pump.
Description
Technical field
The present invention relates to mechanical seal, especially nuclear power plant containment shell heat derives to pump face-to-face formula Double End machine
Tool sealing device.
Background technique
The face-to-face formula double end-face mechanical sealing device of the prior art is as shown in Figure 1, include side medium mechanical seal and atmosphere
Side mechanical seal, axle sleeve, internal gland, outer press cover, shaft sleeve positioning structure, axle sleeve transmission mechanism, side medium mechanical seal and atmosphere
The rotating ring of side mechanical seal is separately mounted on the left rotating seat and right rotating seat that open up on axle sleeve, and two rotating rings are in back-to-back, Jie
The stationary ring of matter side mechanical seal is compensation ring, and the static components of side medium mechanical seal are mounted on internal gland, and atmospheric side is mechanical
The stationary ring of sealing is compensation ring, and the static components of atmospheric side mechanical seal are mounted on outer press cover, forms two compensation ring (stationary ring)
Face-to-face formula double end-face mechanical sealing device.
Above-mentioned face-to-face formula double end-face mechanical sealing device, the stationary ring group of side medium mechanical seal and atmospheric side mechanical seal
Part structure is consistent, including stationary ring, O shape slide sealing ring, throw-out collar, spring, spring case, throw-out collar stop pin, spring case stop pin.
The static components mounting structure of side medium mechanical seal is that bending type static components are offered on the left of internal gland
Installation set, static components are fitted on the periphery of internal gland static components installation set, including stationary ring is slidably installed
On gland static components installation set periphery, offer inner stopper platform at stationary ring rear portion, in the inner stopper platform be arranged stationary ring with
O shape between internal gland static components installation set periphery slides sealing ring, quiet in stationary ring rear portion throw-out collar and spring case and internal gland
Ring assemblies installation set periphery is coupled, the cooperation of the inner stopper platform that opens up on the rear portion of stationary ring and throw-out collar, and stationary ring with push away
Rotation-preventing mechanism is offered between the mating surface of ring, i.e., offers concave-convex card slot between stationary ring and the mating surface of throw-out collar and carry out anti-rotation cooperation
Connection, spring is mounted on spring case and axial thrust effect throw-out collar, and throw-out collar stop pin, which is arranged, between spring case and throw-out collar prevents
Throw-out collar rotation, spring case stop pin, which is arranged, between internal gland and spring case prevents spring case from rotating.
The static components mounting structure for ibid stating side medium mechanical seal is consistent, the static components peace of atmospheric side mechanical seal
Assembling structure is to be equipped with bending type static components installation set in the right side opening of outer press cover, static components are fitted to as described above
On the periphery of outer press cover static components installation set.
The mechanical seal of above-mentioned prior art media side and atmospheric side mechanical seal structure are symmetrical, side medium mechanical seal and big
The stationary ring of gas side mechanical seal is that compensation ring is separately positioned on left and right ends, forming face facing type double end-face mechanical sealing device.
The above-mentioned face-to-face formula double end-face mechanical sealing device of the prior art, static components structural member is more, and matching relationship is complicated,
Installation is inconvenient, is easy to cause static components to cooperate failure, reliability decrease under work operating vibration；And static components are turned round
The transmission process of square is complicated, and intermediate link is more, reduces the reliability of torque transmitting；Static components axial dimension is long, leads to this
Face-to-face formula double mechanical seal axial dimension is long, and equipment is poor using adaptability, influences the versatility and peace of mechanical seal
Dress uses；Internal gland and outer press cover bending type static components installation set not only make internal gland and outer press cover structure is complicated, structural
It is bad, and requirement on machining accuracy is high, and difficulty of processing is big, at high cost.
Summary of the invention
The purpose of the present invention is deficiency improves the shortcomings that being directed to the above-mentioned prior art, it is good to provide a kind of structural behaviour,
Compact-sized, high reliablity face-to-face formula double end-face mechanical sealing device, especially nuclear power plant containment shell heat derives pump are used
Mechanically-sealing apparatus, sufficiently to meet nuclear power station to the high reliability request of mechanical sealing device used for pump.
The face-to-face formula double end-face mechanical sealing device of the present invention, including side medium mechanical seal and atmospheric side mechanical seal,
Internal gland 2, outer press cover 3, axle sleeve 4, shaft sleeve positioning structure 5, axle sleeve transmission mechanism 6；
The rotating ring A0 of the side medium mechanical seal and rotating ring B0 of atmospheric side mechanical seal is back-to-back be mounted on opened up on axle sleeve 4 it is dynamic
On the left and right ends of ring seat 41, the stationary ring of side medium mechanical seal is compensation ring, the static components A installation of side medium mechanical seal
On internal gland 2, the stationary ring of atmospheric side mechanical seal is compensation ring, and the static components B of atmospheric side mechanical seal is mounted on external pressure
On lid 3, two compensation ring (stationary ring) formula double end-face mechanical sealing device face-to-face is formed, it is characterized in that:
The static components A of side medium mechanical seal, it is close by stationary ring A1, stationary ring O-ring seals A2, stationary seat A3, the sliding of stationary ring O shape
Seal A4, spring A5, stationary seat stop pin A6 are constituted.
The first stopping table A31, the left end of stationary ring A1 and the first seam allowance of stationary seat A3 are offered in the right end of stationary seat A3
Platform A31 is coupled, and sealed groove A32 is opened up on the vertical end face of the first stopping table of stationary seat A3 A31 and to be placed in the sealing recessed
Stationary ring O-ring seals A2 in slot A32, to be sealed to stationary seat A3 and stationary ring A1 mating surface.
The second stopping table A33 is offered in the right-hand end of stationary seat A3, forms the rotating prevention sleeve A38 of stationary seat A3 right end, it is quiet
The rotating prevention sleeve A38 of ring A1 outer circle and stationary seat A3 right end passes through the concave-convex card slot cooperation radially opened up and carries out anti-rotation connection.
Third stopping table A35 is offered in the left end of stationary seat A3, stopping table 21, stationary seat are offered on internal gland 2
The third stopping table A35 of the left end A3 is slidably matched with the stopping table 21 on internal gland 2；In stationary seat A3 and 2 seam allowance diameter of internal gland
Sealing ring A4 is slid to stationary ring O shape is arranged between mating surface.
Spring mounting hole 25 is opened up on internal gland 2, spring A5 is mounted on the spring mounting hole 25 opened up on internal gland 2
And thrust is in the left side A34 of stationary seat A3, the cooperation so that stationary ring A1 and the end face rotating ring A0 recline.
It is fixedly connected with stationary seat stop pin A6 on internal gland 2, outward flange A36 is equipped in stationary seat A3 outer circle, quiet
Cotter way A37, the stationary seat stop pin being fixedly connected on the cotter way A37 and internal gland 2 of stationary seat A3 are opened up on ring seat outward flange A36
A6 cooperation, prevents stationary seat A3 from rotating.
The static components B of atmospheric side mechanical seal and the static components A structure of side medium mechanical seal are consistent；Atmospheric side machine
The static components B of tool sealing slides sealing ring B4, spring by stationary ring B1, stationary ring O-ring seals B2, stationary seat B3, stationary ring O shape
B5, stationary seat stop pin B6 are constituted；The stationary ring A1 of mating connection with the side medium mechanical seal of stationary ring B1 and stationary seat B3 with it is quiet
The mating connection mode of ring seat A3 is consistent；The stationary seat B3 of atmospheric side mechanical seal and the mating connection mode of outer press cover 3 and Jie
The stationary seat A3 of matter side mechanical seal and the mating connection mode of internal gland 2 are consistent.
Structure of the invention is compact, structural good, and combined member is few, and gland structure is simple, and axial dimension reduces, and assembles, and turns round
Square transfer reliability is high, and the processing is simple, at low cost, further satisfaction high reliability of the nuclear power station to mechanical sealing device used for pump
It is required that.
Detailed description of the invention
Fig. 1 is the face-to-face formula double end-face mechanical sealing device structural schematic diagram of the prior art.
Fig. 2 is formula double end-face mechanical sealing device example structure schematic diagram face-to-face of the invention.
Fig. 3 is the A-A cross-sectional view of Fig. 2.
Specific embodiment
The face-to-face formula double end-face mechanical sealing device of the present invention, it is interior by side medium mechanical seal and atmospheric side mechanical seal
Gland 2, outer press cover 3, axle sleeve 4, shaft sleeve positioning structure 5, axle sleeve transmission mechanism 6 are constituted.
Back-to-back be mounted on axle sleeve 4 of the rotating ring A0 of the side medium mechanical seal and rotating ring B0 of atmospheric side mechanical seal opens up
Rotating seat 41 left and right ends on, the stationary ring of side medium mechanical seal is compensation ring, the static components A of side medium mechanical seal
It is mounted on internal gland 2, the stationary ring of atmospheric side mechanical seal is compensation ring, and the static components B of atmospheric side mechanical seal is mounted on
On outer press cover 3, the two compensation face-to-face formula double end-face mechanical sealing devices of ring stationary ring are formed, it is characterized in that: side medium mechanical seal
Static components A, by stationary ring A1, stationary ring O-ring seals A2, stationary seat A3, stationary ring O shape slide sealing ring A4, spring A5, stationary ring
Seat stop pin A6 is constituted.
The first stopping table A31, the left end of stationary ring A1 and the first seam allowance of stationary seat A3 are offered in the right end of stationary seat A3
Platform A31 is coupled, and sealed groove A32 is opened up on the vertical end face of the first stopping table of stationary seat A3 A31 and to be placed in the sealing recessed
Stationary ring O-ring seals A2 in slot A32, to be sealed to stationary seat A3 and stationary ring A1 mating surface.
The second stopping table A33 is offered in the right-hand end of stationary seat A3, forms the rotating prevention sleeve A38 of stationary seat A3 right end, it is quiet
The rotating prevention sleeve A38 of ring A1 outer circle and stationary seat A3 right end passes through the concave-convex card slot cooperation radially opened up and carries out anti-rotation connection.
Third stopping table A35 is offered in the left end of stationary seat A3, stopping table 21, stationary seat are offered on internal gland 2
The third stopping table A35 of the left end A3 is slidably matched with the stopping table 21 on internal gland 2；In stationary seat A3 and 2 seam allowance diameter of internal gland
Sealing ring A4 is slid to stationary ring O shape is arranged between mating surface.
Spring mounting hole 25 is opened up on internal gland 2, spring A5 is mounted on the spring mounting hole 25 opened up on internal gland 2
And thrust is in the left side A34 of stationary seat A3, the cooperation so that stationary ring A1 and the end face rotating ring A0 recline.
It is fixedly connected with stationary seat stop pin A6 on internal gland 2, outward flange A36 is equipped in stationary seat A3 outer circle, quiet
Cotter way A37, the stationary seat stop pin being fixedly connected on the cotter way A37 and internal gland 2 of stationary seat A3 are opened up on ring seat outward flange A36
A6 cooperation, prevents stationary seat A3 from rotating.
The static components B of atmospheric side mechanical seal and the static components A structure of side medium mechanical seal are consistent；Atmospheric side machine
The static components B of tool sealing slides sealing ring B4, spring by stationary ring B1, stationary ring O-ring seals B2, stationary seat B3, stationary ring O shape
B5, stationary seat stop pin B6 are constituted；The stationary ring A1 of mating connection with the side medium mechanical seal of stationary ring B1 and stationary seat B3 with it is quiet
The mating connection mode of ring seat A3 is consistent.
The stationary ring of the stationary seat B3 of atmospheric side mechanical seal and the mating connection mode of outer press cover 3 and side medium mechanical seal
Seat A3 is consistent with the mating connection mode of internal gland 2.That is:
Stopping table 31 is offered on outer press cover 3, the stopping table on the stopping table B35 that stationary seat B3 right end opens up and outer press cover 3
31 are slidably matched；Stationary ring O shape is set between 3 seam allowance radial mating surface of stationary seat B3 and outer press cover and slides sealing ring B4.
Spring mounting hole 35 is opened up on outer press cover 3, spring B 5 is mounted on the spring mounting hole 35 opened up on outer press cover 3
And thrust is in the right side B34 of stationary seat B3；The cooperation so that stationary ring B1 and the end face rotating ring B0 recline.
It is fixedly connected with stationary seat stop pin B6 on outer press cover 3, outward flange B36 is equipped in stationary seat B3 outer circle, quiet
Cotter way B37, the stationary seat stop pin being fixedly connected on the cotter way B37 and internal gland 3 of stationary seat B3 are opened up on ring seat outward flange B36
B6 cooperation, prevents stationary seat B3 from rotating.
Claims (1)
1. nuclear power plant containment shell heat derives pump double end-face mechanical sealing device, including side medium mechanical seal and atmospheric side machine
Tool sealing, internal gland (2), outer press cover (3), axle sleeve (4), shaft sleeve positioning structure (5), axle sleeve transmission mechanism (6)；
The rotating ring (A0) of side medium mechanical seal and back-to-back be mounted on axle sleeve (4) of the rotating ring (B0) of atmospheric side mechanical seal are opened
If rotating seat (41) left and right ends on, the stationary ring of side medium mechanical seal is compensation ring, the stationary ring of side medium mechanical seal
Component (A) is mounted on internal gland (2), and the stationary ring of atmospheric side mechanical seal is compensation ring, the stationary ring group of atmospheric side mechanical seal
Part (B) is mounted on outer press cover (3), forms the two compensation face-to-face formula double end-face mechanical sealing devices of ring stationary ring, it is characterized in that:
The static components (A) of side medium mechanical seal, by stationary ring (A1), stationary ring O-ring seals (A2), stationary seat (A3), stationary ring O
Shape slides sealing ring (A4), spring (A5), stationary seat stop pin (A6) composition；
It is offered the first stopping table (A31) in the right end of stationary seat (A3), the first of the left end of stationary ring (A1) and stationary seat (A3)
Stopping table (A31) is coupled, opened up on the vertical end face of the first stopping table of stationary seat (A3) (A31) sealed groove (A32) and
The stationary ring O-ring seals (A2) being placed in the sealed groove (A32), it is close to be carried out to stationary seat (A3) with stationary ring (A1) mating surface
Envelope；
It is offered the second stopping table (A33) in the right-hand end of stationary seat (A3), forms the rotating prevention sleeve of stationary seat (A3) right end
(A38), the rotating prevention sleeve (A38) of stationary ring (A1) outer circle and stationary seat (A3) right end passes through the concave-convex card slot cooperation radially opened up and carries out
Anti-rotation connection；
Third stopping table (A35) is offered in the left end of stationary seat (A3), is offered on internal gland (2) stopping table (21), it is quiet
The third stopping table (A35) of the left end ring seat (A3) is slidably matched with the stopping table (21) on internal gland (2)；Stationary seat (A3) with
Stationary ring O shape is set between internal gland (2) seam allowance radial mating surface and slides sealing ring (A4)；
It is opened up on internal gland (2) spring mounting hole (25), spring (A5) is mounted on the spring mounting hole opened up on internal gland (2)
(25) on and thrust is in the left side (A34) of stationary seat (A3), the cooperation so that stationary ring (A1) and the end face rotating ring (A0) recline；
It is fixedly connected with stationary seat stop pin (A6) on internal gland (2), is equipped with outward flange (A36) in stationary seat (A3) outer circle,
It opens up on stationary seat outward flange (A36) cotter way (A37), is fixedly connected on the cotter way (A37) of stationary seat (A3) and internal gland (2)
Stationary seat stop pin (A6) cooperation, prevent stationary seat (A3) rotate；
The static components (B) of atmospheric side mechanical seal are consistent with static components (A) structure of side medium mechanical seal；Atmospheric side machine
The static components (B) of tool sealing slide sealing ring by stationary ring (B1), stationary ring O-ring seals (B2), stationary seat (B3), stationary ring O shape
(B4), spring (B5), stationary seat stop pin (B6) are constituted；The mating connection of stationary ring (B1) and stationary seat (B3) and side medium are mechanical
The stationary ring (A1) of sealing is consistent with the mating connection mode of stationary seat (A3)；The stationary seat (B3) and external pressure of atmospheric side mechanical seal
Mating connection mode and the stationary seat (A3) of side medium mechanical seal for covering (3) are consistent with the mating connection mode of internal gland (2).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811565536.2A CN109488770A (en) | 2018-12-20 | 2018-12-20 | Nuclear power plant containment shell heat derives pump uses double end-face mechanical sealing device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811565536.2A CN109488770A (en) | 2018-12-20 | 2018-12-20 | Nuclear power plant containment shell heat derives pump uses double end-face mechanical sealing device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN109488770A true CN109488770A (en) | 2019-03-19 |
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ID=65711162
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201811565536.2A Pending CN109488770A (en) | 2018-12-20 | 2018-12-20 | Nuclear power plant containment shell heat derives pump uses double end-face mechanical sealing device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN109488770A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114321376A (en) * | 2022-01-06 | 2022-04-12 | 安徽亚兰密封件股份有限公司 | Packaging mechanical sealing structure with spiral effect for submersible electric pump |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2016058457A1 (en) * | 2014-10-15 | 2016-04-21 | 邢宇 | Bushing for cooling dual-side mechanical seal friction pair and centrifugal pump cooling system thereof |
| 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 |
| CN107435654A (en) * | 2017-07-28 | 2017-12-05 | 丹东克隆集团有限责任公司 | Nuclear power medium-voltage safety injection pump mechanically-sealing apparatus |
| CN209540044U (en) * | 2018-12-20 | 2019-10-25 | 丹东克隆集团有限责任公司 | Nuclear power plant containment shell heat derives pump uses double end-face mechanical sealing device |
-
2018
- 2018-12-20 CN CN201811565536.2A patent/CN109488770A/en active Pending
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2016058457A1 (en) * | 2014-10-15 | 2016-04-21 | 邢宇 | Bushing for cooling dual-side mechanical seal friction pair and centrifugal pump cooling system thereof |
| 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 |
| CN107435654A (en) * | 2017-07-28 | 2017-12-05 | 丹东克隆集团有限责任公司 | Nuclear power medium-voltage safety injection pump mechanically-sealing apparatus |
| CN209540044U (en) * | 2018-12-20 | 2019-10-25 | 丹东克隆集团有限责任公司 | Nuclear power plant containment shell heat derives pump uses double end-face mechanical sealing device |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114321376A (en) * | 2022-01-06 | 2022-04-12 | 安徽亚兰密封件股份有限公司 | Packaging mechanical sealing structure with spiral effect for submersible electric pump |
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