CN209084276U - 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
- CN209084276U CN209084276U CN201821602203.8U CN201821602203U CN209084276U CN 209084276 U CN209084276 U CN 209084276U CN 201821602203 U CN201821602203 U CN 201821602203U CN 209084276 U CN209084276 U CN 209084276U
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- 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.)
- Withdrawn - After Issue
Links
- 230000001681 protective effect Effects 0.000 title claims abstract description 14
- 238000007789 sealing Methods 0.000 claims abstract description 21
- 239000002274 desiccant Substances 0.000 claims description 4
- 239000007787 solid Substances 0.000 claims description 4
- 238000009434 installation Methods 0.000 abstract description 10
- 230000000694 effects Effects 0.000 abstract description 8
- 238000003466 welding Methods 0.000 description 5
- 229910000831 Steel Inorganic materials 0.000 description 4
- 239000010959 steel Substances 0.000 description 4
- 230000002633 protecting effect Effects 0.000 description 3
- 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
- 230000007812 deficiency Effects 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
- 238000003860 storage Methods 0.000 description 1
Landscapes
- Gasket Seals (AREA)
Abstract
The utility model 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 utility model 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 utility model relates to a kind of mechanical seal protective devices of adapter tube, especially set for nuclear safe level in nuclear power station
Standby 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 this utility model is the above-mentioned deficiency for the prior art, and providing a kind of outer wall is skewed big adapter tube
Mechanical seal protective device, it 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.
In order to achieve the above object, the outer wall of the utility model is the mechanical seal protective device of skewed big adapter tube, packet
Include cylinder, 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 with
On the both ends of support tube connected firmly respectively with upper bracing ring and lower bracing ring, support tube is fixedly connected with upper junction plate and lower connection
Plate, lower bracing ring downside are equipped with end cover, and three or more studs slidings pass through end cover, respective upper connection
Plate and lower connecting plate are equipped with the positioning pin across respective studs above upper junction plate, double below upper junction plate
It is successively cased with spring and washer on header stud, fixed fixture block is associated with by screw thread on the studs below washer, one
The rubber sheet gasket of annular couples with all fixation fixture blocks, and lower connecting plate is respectively positioned below fixed fixture block；Below end cover
Studs on be equipped with clamp nut；Protection cylinder is fixedly connected on the outside of end cover, in protection cylinder and studs
Between 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, by rotating fixed fixture block and clamp nut, so that rubber sheet gasket is close to the side end face taken over greatly, bullet
Spring can provide enough pretightning forces, while bulge loop is placed in the inner circle of the big adapter tube other side, and sealing ring is close to inner circle side wall, adds
Upper protection cylinder can realize sealing to the both ends taken over greatly, and sealing effect is good, whole device light weight, easily carries, and is not necessarily to worker
It pierces inside container, it is easy to operate, installation, disassembly can be realized without special auxiliary device, and versatility is stronger；Rubber sheet gasket both may be used
With the damage that prevents from colliding with, no other components are directly contacted with adapter tube, can be polluted to avoid adapter tube；
Several through-holes are equipped in cylinder lateral wall and upper cover plate as a further improvement of the utility model, in cylinder
Equipped with desiccant；The protecting effect to big nozzle inner wall can be improved；
Upper bracing ring and upper cover plate are solid by several connection bolts and nut as a further improvement of the utility model,
Connection；Facilitate installation, disassembly；
The corresponding upper junction plate of every support tube and lower connecting plate also pass through solid as a further improvement of the utility model,
Determine stick to be connected；The rotation of fixed fixture block can be limited, facilitate installation, improve efficiency；
The positioning across respective studs is equipped with below clamp nut as a further improvement of the utility model,
Pin；It can prevent the slippage of clamp nut；
The upper surface of the end cover between bulge loop and protection cylinder passes through as a further improvement of the utility model,
Annular groove is equipped with sealing ring；It can further improve sealing effect；
In conclusion the utility model have the advantages that light weight, easily carry, easy to operate, sealing effect is good, both can be to prevent
It only collides with and damages and avoid adapter tube 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 utility model embodiment.
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 utility model 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 fixing card that first turns to the inside
Block 15 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 rotates solid
Determine fixture block 15 and screw clamp nut 18, so that rubber sheet gasket 16 is close to the upside end face of adapter tube 27, spring 13 be can provide enough
Pretightning force, 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 are close to adapter tube inner circle side walls or end face, plus protection cylinder 19, can the both ends realization of butt tube 27 seal, sealing effect
It is good；The present apparatus uses several pieces of threaded fixed fixture blocks 15 without the monolith steel plate for fixed adapter tube upper end, whole device matter
Amount is light, easily carries, pierces inside container without worker, easy to operate, can realize installation, disassembly without special auxiliary device, lead to
It is stronger with property；Rubber sheet gasket 16 can both prevent damage of colliding with, and no other components are directly contacted with adapter tube, can meet with to avoid adapter tube
It is contaminated；The protecting effect that desiccant can reduce humidity, improve docking inside pipe wall；Hold-down bars 24 can be to the rotation of fixed fixture block 15
It is limited, 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 |
|---|---|---|---|
| CN201821602203.8U CN209084276U (en) | 2018-09-29 | 2018-09-29 | Outer wall is the mechanical seal protective device of skewed big adapter tube |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821602203.8U CN209084276U (en) | 2018-09-29 | 2018-09-29 | Outer wall is the mechanical seal protective device of skewed big adapter tube |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN209084276U true CN209084276U (en) | 2019-07-09 |
Family
ID=67118011
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201821602203.8U Withdrawn - After Issue CN209084276U (en) | 2018-09-29 | 2018-09-29 | Outer wall is the mechanical seal protective device of skewed big adapter tube |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN209084276U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109027508A (en) * | 2018-09-29 | 2018-12-18 | 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 CN201821602203.8U patent/CN209084276U/en not_active Withdrawn - After Issue
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109027508A (en) * | 2018-09-29 | 2018-12-18 | 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 |
| CN109027508B (en) * | 2018-09-29 | 2023-12-08 | 东方电气集团东方锅炉股份有限公司 | Mechanical seal protection device with inclined large connecting pipe on outer wall |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| AV01 | Patent right actively abandoned | ||
| AV01 | Patent right actively abandoned | ||
| AV01 | Patent right actively abandoned |
Granted publication date: 20190709 Effective date of abandoning: 20231208 |
|
| AV01 | Patent right actively abandoned |
Granted publication date: 20190709 Effective date of abandoning: 20231208 |