CN109027508A - Outer wall is the mechanical seal protective device of skewed big adapter tube - Google Patents
Outer wall is the mechanical seal protective device of skewed big adapter tube Download PDFInfo
- Publication number
- CN109027508A CN109027508A CN201811149136.3A CN201811149136A CN109027508A CN 109027508 A CN109027508 A CN 109027508A CN 201811149136 A CN201811149136 A CN 201811149136A CN 109027508 A CN109027508 A CN 109027508A
- Authority
- CN
- China
- Prior art keywords
- adapter tube
- end cover
- studs
- skewed
- bracing ring
- 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
- 230000001681 protective effect Effects 0.000 title claims abstract description 13
- 238000007789 sealing Methods 0.000 claims abstract description 21
- 239000002274 desiccant Substances 0.000 claims description 3
- 239000007787 solid Substances 0.000 claims 1
- 238000009434 installation Methods 0.000 abstract description 9
- 230000000694 effects Effects 0.000 abstract description 8
- 230000002633 protecting effect Effects 0.000 description 5
- 238000003466 welding Methods 0.000 description 5
- 229910000831 Steel Inorganic materials 0.000 description 4
- 239000010959 steel Substances 0.000 description 4
- IJGRMHOSHXDMSA-UHFFFAOYSA-N Atomic nitrogen Chemical compound N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 description 2
- 229910000975 Carbon steel Inorganic materials 0.000 description 1
- 239000010962 carbon steel Substances 0.000 description 1
- 239000003795 chemical substances by application Substances 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 238000001035 drying Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 230000007613 environmental effect Effects 0.000 description 1
- 229910052736 halogen Inorganic materials 0.000 description 1
- 150000002367 halogens Chemical class 0.000 description 1
- 239000011261 inert gas Substances 0.000 description 1
- 238000002347 injection Methods 0.000 description 1
- 239000007924 injection Substances 0.000 description 1
- 238000003754 machining Methods 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 238000003032 molecular docking Methods 0.000 description 1
- 229910052757 nitrogen Inorganic materials 0.000 description 1
- 238000011017 operating method Methods 0.000 description 1
- 230000036316 preload Effects 0.000 description 1
- 238000003860 storage 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
- F16L—PIPES; JOINTS OR FITTINGS FOR PIPES; SUPPORTS FOR PIPES, CABLES OR PROTECTIVE TUBING; MEANS FOR THERMAL INSULATION IN GENERAL
- F16L55/00—Devices or appurtenances for use in, or in connection with, pipes or pipe systems
- F16L55/10—Means for stopping flow from or in pipes or hoses
- F16L55/115—Caps
- F16L55/1152—Caps fixed by screwing or by means of a screw-threaded ring
Abstract
The invention discloses the mechanical seal protective devices that a kind of outer wall is skewed big adapter tube, including cylinder, it is fixed on the upper bracing ring and lower bracing ring at cylinder both ends, the both ends of three or more support tubes are connected firmly with upper bracing ring and lower bracing ring respectively, support tube is fixedly connected with upper junction plate and lower connecting plate, end cover is equipped on the downside of lower bracing ring, three or more studs slidings pass through end cover, respective upper junction plate and lower connecting plate, spring is successively cased on studs, washer and it is associated with fixed fixture block, rubber sheet gasket couples with all fixation fixture blocks；It is fixedly connected with protection cylinder on the outside of end cover, is equipped with sealing ring in the bulge loop lateral surface of end cover；The present invention has the advantages that light weight, easy carrying, easy to operate, sealing effect is good, can not only prevent from colliding with damage but also can avoid adapter tube being polluted, and versatility is stronger, can realize installation without special auxiliary device, dismantle.
Description
Technical field
The present invention relates to a kind of mechanical seal protective devices of adapter tube, especially for Nuclear safety related equipment in nuclear power station
Outer wall is the mechanical seal protective device of skewed big adapter tube.
Background technique
Main Nuclear safety related equipment such as steam generator, voltage-stablizer, safety injection tank etc. in nuclear power station at present, after the completion of manufacture
Transport, field storage during, for avoid equipment be chlorinated object, halogen or carbon steel etc. pollution, generally require to equipment into
Row nitrogen charging fills other inert gases and is protected and maintained certain low-pressure (usually requiring that 0.01MPa) until equipment is pacified
Dress.This requires all adapter tubes in equipment are blocked with the pressure to maintain to need.Now the adapter tube of tankage is carried out
Low-pressure sealing, mainly takes three kinds of modes: welded end plate, plug and mechanical seal.
Closure sealing is carried out using welding manner, effect is no doubt best to be also easy to get guarantee.But need field joint
The retaining wall on slope that the welded seal part of pipe is cut, removed and will take over is required to field joint weldering is met.And often core is pacified
The adapter tube groove type of full equipment is existing since structure, mechanics and in-site installation etc. need all to be more complicated and processing request is high
Machining equipment, environmental condition and the worker's technology of field are often difficult to meet the requirements, while client generally also requires adapter tube slope
Mouth must be machined to the state for meeting site welding, therefore generally not use welding manner to seal, and use mechanical seal side
Formula butt tube is sealed and protects.
Currently used adapter tube 27, as shown in Figure 1, the mechanical seal mode used is all on the inside of adapter tube and vessel
Connected segmental arc uses a monolith steel plate as the fixed block of inner seal, to realize the fixation and support of sealing device,
It takes over using circular seal ring at port and realization port mechanical seal is compressed by the flat cover of not trough of belt.This sealing exists such as
Lower disadvantage: 1) nozzle inner wall segmental arc uses monolith fixed block, causes quality to increase in this way, is not suitable for manual handling fixed block；
2) since fixed block is a monolith steel plate, it is not easy to when being designed to be installed and be dismantled by adapter tube inner hole by fixed block
By necessary operations such as inner hole taking-ups, needs operator to creep into container and fixed block is carried to adapter tube inside and container sheet
It is installed at the connected arc of body, operative employee is also required to reach herein when disassembly, time-consuming in this way, laborious and increase personnel behaviour
Make risk；3) adapter tube port is sealed using the not flat cover of trough of belt and plain washer, since root face is small, is let out often
Leakage；4) internal fixed block is directly contacted with adapter tube, increases the risk that adapter tube is damaged.
To solve the above problems, the present invention proposes that a kind of completely new outer wall connects greatly at skewed and anhydrous gentle vertical section class
It the mechanical seal of pipe and protects structure and operating method is provided.It is characterized in that: 1) the fixation fixture block of adapter tube inside do not use whole
Block steel plate, and use several pieces of threaded fixed fixture blocks and make fixed fixture block by rotating stud by screwing realization with stud
Rotation, so that mechanical seal structure light weight is easily carried, and easy to operate pierce inside container without worker operates.
2) setting spherical rubber is padded on the arc that adapter tube inside is connected with vessel below the fixation fixture block of adapter tube inside
Section can not only prevent segmental arc from colliding with and damage but also can be polluted to avoid adapter tube.3) adapter tube exterior side port uses O-ring seal
It is sealed, while an O-ring seal is set on the inside of adapter tube port, take dual-seal, enhance sealing effect；4) for
This kind of adapter tube versatility is stronger, can realize installation, disassembly without special auxiliary device.
Summary of the invention
The purpose of the present invention is being directed to the above-mentioned deficiency of the prior art, the machinery that a kind of outer wall is skewed big adapter tube is provided
Seal protecting device, it have the advantages that light weight, easily carry, easy to operate, sealing effect is good, can both prevent from colliding with damage and
It avoids adapter tube from being polluted, and versatility is stronger, can realize installation, disassembly without special auxiliary device.
In order to achieve the above object, outer wall of the invention is the mechanical seal protective device of skewed big adapter tube, including cylinder
Body, it is characterised in that cylinder both ends are fixedly connected with bracing ring and lower bracing ring, and upper bracing ring is connected firmly with upper cover plate, three or more
The both ends of support tube are connected firmly with upper bracing ring and lower bracing ring respectively, and support tube is fixedly connected with upper junction plate and lower connecting plate, under
Be equipped with end cover on the downside of bracing ring, three or more studs slidings pass through end cover, respective upper junction plate and
Lower connecting plate is equipped with the positioning pin across respective studs, the double end spiral shell below upper junction plate above upper junction plate
It is successively cased with spring and washer on column, fixed fixture block, an annular are associated with by screw thread on the studs below washer
Rubber sheet gasket couple with all fixation fixture blocks, lower connecting plate is respectively positioned below fixed fixture block；It is double below end cover
Clamp nut is equipped on header stud；Protection cylinder is fixedly connected on the outside of end cover, between protection cylinder and studs
The upper surface of end cover be installed with bulge loop, sealing ring is equipped with by annular groove in the lateral surface of bulge loop；
In use, so that rubber sheet gasket is close to the side end face taken over greatly, spring can by rotating fixed fixture block and clamp nut
Enough pretightning forces are provided, while bulge loop is placed in the inner circle of the big adapter tube other side, sealing ring is close to inner circle side wall, in addition protecting
Casing body can realize sealing to the both ends taken over greatly, and sealing effect is good, whole device light weight, easily carries, pierces without worker
It is easy to operate inside container, installation, disassembly can be realized without special auxiliary device, and versatility is stronger；Rubber sheet gasket both can be to prevent
It only collides with damage, no other components are directly contacted with adapter tube, can be polluted to avoid taking over；
As a further improvement of the present invention, several through-holes are equipped in cylinder lateral wall and upper cover plate, drying is equipped in cylinder
Agent；The protecting effect to big nozzle inner wall can be improved；
As a further improvement of the present invention, upper bracing ring is connected firmly with upper cover plate by several connection bolts and nut；Facilitate peace
Dress, disassembly；
As a further improvement of the present invention, the corresponding upper junction plate of every support tube and lower connecting plate also pass through hold-down bars phase
Connection；The rotation of fixed fixture block can be limited, facilitate installation, improve efficiency；
As a further improvement of the present invention, the positioning pin across respective studs is equipped with below clamp nut；It can prevent
The slippage of clamp nut；
As a further improvement of the present invention, the upper surface of the end cover between bulge loop and protection cylinder is equipped with by annular groove
Sealing ring；It can further improve sealing effect；
In conclusion the present invention has the advantages that light weight, easy carrying, easy to operate, sealing effect is good, can both prevent damage of colliding with
Hurt and adapter tube is avoided to be polluted, and versatility is stronger, can realize installation, disassembly without special auxiliary device.
Detailed description of the invention
Fig. 1 is the existing common main view taken over greatly.
Fig. 2 is the main view of the embodiment of the present invention.
Fig. 3 is the cross-sectional view of the B-B of Fig. 2.
Fig. 4 is the D of Fig. 2 to partial view.
Fig. 5 is the C-C cross-sectional view of Fig. 4.
Specific embodiment
With reference to the accompanying drawing, the present invention is described in further detail.
As shown in Figures 2 to 5, the outer wall of the embodiment is the mechanical seal protective device of skewed big adapter tube, including cylinder
Body 1, at 1 both ends of cylinder, welding is fixedly connected with upper bracing ring 2 and lower bracing ring 3, and upper bracing ring 2 passes through several connections with upper cover plate 4
Bolt 5 and nut 6 connect firmly, and are equipped with several through-holes 23 in 1 side wall of cylinder and upper cover plate 4, are equipped with desiccant (not in cylinder 1
It shows)；Circumferentially the both ends of four uniformly distributed support tubes 7 are connected firmly with upper bracing ring 2 and the welding of lower bracing ring 3 respectively, are supported
Pipe 7 welds and is fixedly connected with upper junction plate 8 and lower connecting plate 9, and the every corresponding upper junction plate 8 of support tube 7 and lower connecting plate 9 are also logical
It crosses hold-down bars 24 to be connected, end cover 10 is equipped on the downside of lower bracing ring 3, circumferentially four uniformly distributed studs 11 slide
Across end cover 10, respective upper junction plate 8 and lower connecting plate 9, it is equipped with above upper junction plate 8 across respective double end spiral shell
The opening positioning pin 12 of column 11 is successively cased with spring 13 and washer 14 on the studs 11 below upper junction plate 8, is padding
Fixed fixture block 15 is associated with by screw thread on the studs 11 of 14 lower section of circle, the rubber sheet gasket 16 of an annular by screw 17 and
All fixation fixture blocks 15 couple, and lower connecting plate 9 is respectively positioned on fixed 15 lower section of fixture block；Studs below end cover 10
It is equipped with clamp nut 18 on 11, this end of clamp nut 18 and studs 11 is compressing spiral shell, 18 lower sections using sealing screw thread
Equipped with the opening positioning pin 26 across respective studs 11；It is fixedly connected with protection cylinder 19 on the outside of end cover 10, is protecting
The upper surface of end cover 10 between cylinder 19 and studs 11 is installed with bulge loop 20, in the lateral surface and bulge loop of bulge loop 20
The upper surface of end cover 19 between 20 and protection cylinder 19 passes through annular groove equipped with sealing ring 21 or 22；
The shape of rubber sheet gasket 16 and the shape of 27 upper end of adapter tube match；In use, each fixed fixture block 15 that first turns to the inside,
So that each fixed fixture block 15 and upper cover plate 4, cylinder 1 and support tube 7 pass through the inner hole of adapter tube 27, then laterally rotate fixed fixture block
15 and clamp nut 18 is screwed, so that rubber sheet gasket 16 is close to the upside end face of adapter tube 27, spring 13 can provide enough preloads
Power, while bulge loop 20 is placed in the inner circle of 27 other side of adapter tube, 27 lower end of adapter tube is contacted with end cover 10, sealing ring 21 or 22
Be close to adapter tube inner circle side wall or end face, plus protection cylinder 19, can the both ends realization of butt tube 27 seal, sealing effect is good；This
Device uses several pieces of threaded fixed fixture blocks 15 without the monolith steel plate for fixed adapter tube upper end, whole device light weight,
Easily carry, pierced inside container without worker, it is easy to operate, without special auxiliary device can realize installation, disassembly, versatility compared with
By force；Rubber sheet gasket 16 can both prevent damage of colliding with, and no other components are directly contacted with adapter tube, can be to avoid adapter tube by dirt
Dye；The protecting effect that desiccant can reduce humidity, improve docking inside pipe wall；Hold-down bars 24 can carry out the rotation of fixed fixture block 15
Limit, facilitates installation, improves efficiency.
Claims (6)
1. a kind of outer wall is the mechanical seal protective device of skewed big adapter tube, including cylinder, it is characterised in that cylinder both ends are solid
Be associated with bracing ring and lower bracing ring, upper bracing ring is connected firmly with upper cover plate, the both ends of three or more support tubes respectively with upper branch
Support ring and lower bracing ring connect firmly, and support tube is fixedly connected with upper junction plate and lower connecting plate, are equipped with end cover on the downside of lower bracing ring,
Three or more studs slidings pass through end cover, respective upper junction plate and lower connecting plate, above upper junction plate
It is equipped with the positioning pin across respective studs, is successively cased with spring and pad on the studs below upper junction plate
Circle is associated with fixed fixture block, the rubber sheet gasket of an annular and all fixations by screw thread on the studs below washer
Fixture block connection, lower connecting plate are respectively positioned below fixed fixture block；Clamp nut is equipped on the studs below end cover；
Protection cylinder is fixedly connected on the outside of end cover, the upper surface of the end cover between protection cylinder and studs is installed with
Bulge loop is equipped with sealing ring by annular groove in the lateral surface of bulge loop.
2. the mechanical seal protective device that outer wall according to claim 1 is skewed big adapter tube, it is characterised in that in cylinder
Body sidewall and upper cover plate are equipped with several through-holes, and desiccant is equipped in cylinder.
3. the mechanical seal protective device that outer wall according to claim 1 is skewed big adapter tube, it is characterised in that upper branch
Support ring is connected firmly with upper cover plate by several connection bolts and nut.
4. outer wall according to any one of claims 1 to 3 is the mechanical seal protective device of skewed big adapter tube, feature exists
It is also connected by hold-down bars in the corresponding upper junction plate of every support tube and lower connecting plate.
5. the mechanical seal protective device that outer wall according to claim 4 is skewed big adapter tube, it is characterised in that pressing
The positioning pin across respective studs is equipped with below tight nut.
6. the mechanical seal protective device that outer wall according to claim 5 is skewed big adapter tube, it is characterised in that convex
The upper surface of end cover between ring and protection cylinder is equipped with sealing ring by annular groove.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811149136.3A CN109027508B (en) | 2018-09-29 | 2018-09-29 | Mechanical seal protection device with inclined large connecting pipe on outer wall |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811149136.3A CN109027508B (en) | 2018-09-29 | 2018-09-29 | Mechanical seal protection device with inclined large connecting pipe on outer wall |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN109027508A true CN109027508A (en) | 2018-12-18 |
| CN109027508B CN109027508B (en) | 2023-12-08 |
Family
ID=64615078
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201811149136.3A Active CN109027508B (en) | 2018-09-29 | 2018-09-29 | Mechanical seal protection device with inclined large connecting pipe on outer wall |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN109027508B (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110787984A (en) * | 2019-12-04 | 2020-02-14 | 航天精工股份有限公司 | Fastener with ultrasonic transducer, manufacturing process and application |
| CN113803557A (en) * | 2021-07-29 | 2021-12-17 | 东方电气集团东方锅炉股份有限公司 | Nitrogen-filled sealing device of U-shaped exhaling pipe and using method |
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|---|---|---|---|---|
| CN1046111A (en) * | 1989-04-04 | 1990-10-17 | 法玛通公司 | The method and apparatus of extraction of closure plug from steam generator tube |
| AR248306A1 (en) * | 1992-09-04 | 1995-07-12 | Unger Jorge Alberto Tagtachian | Internal seal for coupling tubes in hydraulic tube tests. |
| CA2305957A1 (en) * | 2000-04-10 | 2001-10-10 | Campbell Industries Ltd. | Sealing assembly for a tubing rotator |
| CN1666081A (en) * | 2002-05-10 | 2005-09-07 | 乔治·桑德尔·维采瑙 | Control of air conditioning cooling or heating coil |
| CN1846070A (en) * | 2003-07-01 | 2006-10-11 | 埃茨纳特私人有限公司 | Elastic joint element and fastener assembly incorporating the same |
| CN2874180Y (en) * | 2005-12-23 | 2007-02-28 | 王金针 | Sleeve type compensator |
| CN101387365A (en) * | 2008-10-28 | 2009-03-18 | 张杰城 | Pipe end opening blockage |
| CN101761727A (en) * | 2008-11-10 | 2010-06-30 | 扬动股份有限公司 | Orifice sealing device |
| CN202349200U (en) * | 2011-10-18 | 2012-07-25 | 东方电气(广州)重型机器有限公司 | Detachable type water pressure sealing device for large joint pipe |
| CN209084276U (en) * | 2018-09-29 | 2019-07-09 | 东方电气集团东方锅炉股份有限公司 | Outer wall is the mechanical seal protective device of skewed big adapter tube |
-
2018
- 2018-09-29 CN CN201811149136.3A patent/CN109027508B/en active Active
Patent Citations (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1046111A (en) * | 1989-04-04 | 1990-10-17 | 法玛通公司 | The method and apparatus of extraction of closure plug from steam generator tube |
| AR248306A1 (en) * | 1992-09-04 | 1995-07-12 | Unger Jorge Alberto Tagtachian | Internal seal for coupling tubes in hydraulic tube tests. |
| CA2305957A1 (en) * | 2000-04-10 | 2001-10-10 | Campbell Industries Ltd. | Sealing assembly for a tubing rotator |
| CN1666081A (en) * | 2002-05-10 | 2005-09-07 | 乔治·桑德尔·维采瑙 | Control of air conditioning cooling or heating coil |
| CN1846070A (en) * | 2003-07-01 | 2006-10-11 | 埃茨纳特私人有限公司 | Elastic joint element and fastener assembly incorporating the same |
| CN2874180Y (en) * | 2005-12-23 | 2007-02-28 | 王金针 | Sleeve type compensator |
| CN101387365A (en) * | 2008-10-28 | 2009-03-18 | 张杰城 | Pipe end opening blockage |
| CN101761727A (en) * | 2008-11-10 | 2010-06-30 | 扬动股份有限公司 | Orifice sealing device |
| CN202349200U (en) * | 2011-10-18 | 2012-07-25 | 东方电气(广州)重型机器有限公司 | Detachable type water pressure sealing device for large joint pipe |
| CN209084276U (en) * | 2018-09-29 | 2019-07-09 | 东方电气集团东方锅炉股份有限公司 | Outer wall is the mechanical seal protective device of skewed big adapter tube |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110787984A (en) * | 2019-12-04 | 2020-02-14 | 航天精工股份有限公司 | Fastener with ultrasonic transducer, manufacturing process and application |
| CN110787984B (en) * | 2019-12-04 | 2023-09-22 | 航天精工股份有限公司 | Fastener with ultrasonic transducer, manufacturing process and use |
| CN113803557A (en) * | 2021-07-29 | 2021-12-17 | 东方电气集团东方锅炉股份有限公司 | Nitrogen-filled sealing device of U-shaped exhaling pipe and using method |
| CN113803557B (en) * | 2021-07-29 | 2023-11-03 | 东方电气集团东方锅炉股份有限公司 | Nitrogen filling sealing device of U-shaped call pipe and use method |
Also Published As
| Publication number | Publication date |
|---|---|
| CN109027508B (en) | 2023-12-08 |
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