CN206268660U - Tongue and groove vacuum flange - Google Patents
Tongue and groove vacuum flange Download PDFInfo
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- CN206268660U CN206268660U CN201621394081.9U CN201621394081U CN206268660U CN 206268660 U CN206268660 U CN 206268660U CN 201621394081 U CN201621394081 U CN 201621394081U CN 206268660 U CN206268660 U CN 206268660U
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Abstract
The utility model discloses a kind of tongue and groove vacuum flange, it is related to conduit coupling field.Being arranged at the end of vacuum tube is used to connect two vacuum tubes, including two parts, it is connected to an end for vacuum tube, each part includes annular disk surfaces and multiple through holes, being interconnected between the interconnected and outer tube that the through hole is used between two inner tubes of vacuum tube, forms vacuum, on the face that two parts contact with each other between said inner tube and outer tube, one of them is provided with positive stop lug boss, and another is provided with the groove matched with positive stop lug boss.The vacuum flange compact conformation, sealing property reliability, it is able to ensure that compression ratio in sealing effective range, closed cavity is formed between inner and outer pipe and heat bridge when ensuring that flange is connected, make to be formed between inner tube and air and be effectively isolated, joint directly contact air can be effectively prevented to conduct heat, the insulation and vacuum tube for thoroughly solving the problems, such as vacuum tube junction are installed and later stage working service.
Description
Technical field
The utility model is related to connector field, more particularly to a kind of plane formula vacuum being tightly connected for vacuum tube
Flange arrangement.
Background technology
In deep cooling field, for flammable explosive gas, high-purity gas, cold source gas etc., in order to avoid loss and right
Environment causes harm, and stores and conveys through the mode frequently with speed sensorless vector control.High vacuum multiple layer heat insulation low-temperature liquid pipe（Below
Abbreviation high vacuum pipe）By feat of its remarkable heat-insulating property, it is widely applied in low temperature storing and transporting field, is related to machine
All conglomeraties such as tool, petrochemical industry, metallurgy, biology, medical treatment, Aero-Space.Current country's high vacuum multiple layer heat insulation technological development and work
Skill research is in ascent stage, but most of high vacuum pipe jointing leakage heat is substantially, and needs secondary traditional cold insulation.And
The heat-insulating property of the high vacuum multiple layer heat insulation that foreign countries use is relatively good, but price is high, and jointing needs also exist for carrying out
Secondary cold insulation, cold insulation structure is complicated, and it is low to recycle rate, and demolition and maintenance cause a large amount of to waste and pollute.There is APCI in the world（It is empty
Gasification chemical product Co., Ltd）、Chart（Chart Co.）、Linde AG（Lin De industrial gases companies）Elder generation can be produced Deng company
The high vacuum multiple layer heat insulation cryogenic liquid warehousing and transportation facilities for entering.Domestic enterprise designs and develops indifferent, production technology backwardness mostly
With the outmoded backwardness of production equipment, product is caused not reach technical requirements, quality is unstable, and performance lags far behind famous in the world
The product of manufacturer's production.The National Development and Reform Commission is at 2012 editions《Gas utilization policy》In, clearly propose and " improve
Proportion of the natural gas in primary energy consumption structure ", the production domesticization of LNG technical equipments is to ensureing energy security, adjustment energy knot
Structure, propulsion energy-saving emission reduction are all significant, while reinforcement and high vacuum multiple layer heat insulation low temperature with people's environmental consciousness
The lifting of liquid warehousing and transportation facilities comprehensive benefit, the technology will be more and more wider in China's range of application.
At home and abroad cold insulation technology be able to steadily lifting in the case of, shortage of resources, utilization rate are low, environmental degradation the problems such as
Also all the more substantially, the wasting of resources is effectively reduced, energy utilization rate is improved, it is to avoid the environmental pollution that traditional cold insulation brings turns into deep cooling
The main purpose of industry technology exploitation and direction.
Utility model content
Goal of the invention of the present utility model is：For above-mentioned problem, there is provided a kind of tongue and groove vacuum flange, should
Vacuum flange compact conformation, sealing property reliability, it can be ensured that compression ratio is in sealing effective range, it is ensured that interior during flange connection,
Closed cavity is formed between outer tube and heat bridge, formation between inner tube and air is effectively isolated, can effectively prevent joint straight
Contact air heat transfer, the insulation and vacuum tube for thoroughly solving the problems, such as vacuum tube junction is installed and later stage working service.
The technical solution adopted in the utility model is as follows：
Tongue and groove vacuum flange, being arranged at the end of vacuum tube is used to connect two vacuum tubes, including two parts, respectively
An end for vacuum tube is connected to, each part includes annular disk surfaces and multiple through holes, and the through hole is used for two vacuum tubes
Inner tube between be interconnected and outer tube between be interconnected, vacuum is formed between said inner tube and outer tube, at two
On the face that part contacts with each other, one of them is provided with positive stop lug boss, and another is provided with the groove matched with positive stop lug boss.
In further technical scheme, O-ring seals are provided with the positive stop lug boss and the face of groove fit.
In further technical scheme, including two O-ring seals, and two diameters of O-ring seals are different, diameter compared with
Big is O-ring seals one, and it is O-ring seals two that diameter is less.
In further technical scheme, the O-ring seals one being relatively large in diameter are used to connect the vacuum tube outer tube
Position sealed, the less O-ring seals two of diameter be used for the vacuum tube inner tube connection position carry out it is close
Envelope.
In further technical scheme, the decrement of the decrement more than O-ring seals two of the O-ring seals one.
In further technical scheme, the cross sectional shape of the O-ring seals one is circle, is provided with groove and O shapes
The embedded groove of the matching of sealing ring one, the opening size of the embedded groove is less than its bottom size and slightly larger than O-ring seals one
Size, O-ring seals one are embedded in from the opening of embedded groove.
In further technical scheme, the cross sectional shape of the O-ring seals two is square, is provided with groove and O shapes
The square annular groove of the matching of sealing ring two, the O-ring seals two are located in square annular groove.
In further technical scheme, annular protrusion structure is provided with the positive stop lug boss, the annular protrusion structure with
Q-RING groove shape is matched, and extending partially into for its evagination contacted with O-ring seals two in square annular groove.
In further technical scheme, the O-ring seals two use teflon gasket.
In sum, by adopting the above-described technical solution, the beneficial effects of the utility model are：
The groove of positive stop lug boss and sealing is devised on flange and inner pipe joint, it is ensured that sealed reliable during connection；By pipeline
Connection and junction insulation are integrated into area vacuum flange arrangement module, lift product layout aesthetic property, standardization level
Improve, the performance such as thermal insulation is effectively lifted, and reduces cold damage, and reducing energy consumption, compared to conventional vacuum structure, can reduce foaming, low conduction
Insulation material often changes the pollution caused to environment；Tongue and groove vacuum flange of the present utility model（Plane formula vacuum flange）Knot
Structure vacuum tube possesses Fast Installation, disassembling function, installs quick, and later maintenance is convenient；Common pipeline and pipeline connected mode
Major part is naked pipe butt welding, and welding is limited to the locus of job site, and welding efficiency is low, and welding quality is difficult to protect
Card；Plane formula vacuum flange structure of the present utility model can effectively reduce the difficulty of pipeline field installation, ensure installation quality
While also improve installation effectiveness.
Brief description of the drawings
Fig. 1 is the utility model structural representation；
Fig. 2 is the utility model assembling structure schematic diagram；
Fig. 3 is the enlarged diagram of the position of the utility model O-ring seals one；
Fig. 4 is the enlarged diagram of the position of the utility model O-ring seals two；
Marked in figure：1 is that annular disk surfaces 2 are that through hole 3 is that positive stop lug boss 4 is groove
5 is that O-ring seals 1 are that O-ring seals 27 are embedded grooves
8 is that square annular groove 9 is that annular protrusion structure 11 is vacuum tube
12 is that inner tube 13 is outer tube.
Specific embodiment
Below in conjunction with the accompanying drawings, the utility model is described in detail.
In order that the purpose of this utility model, technical scheme and advantage become more apparent, below in conjunction with accompanying drawing and implementation
Example, is further elaborated to the utility model.It should be appreciated that specific embodiment described herein is only used to explain
The utility model, is not used to limit the utility model.
As Figure 1-Figure 4, plane formula flange arrangement of the present utility model solves existing vacuum pipe connection and is used
Naked pipe butt welding, naked flange connection, male and female vacuum flange connection exist problem, by the improvement to flange arrangement, make
Its attachment structure is more compact, easy installation and removal, and solves the technical problem of vacuum heat-preserving and heat transfer simultaneously, inner tube and
The sealing surface of outer tube is capable of achieving scene vacuum cold insulation on a section, is easy to in-site installation and safeguards dismantle.This practicality is new
The end that the flange arrangement of type is arranged at vacuum tube is used to connect two vacuum tubes, including two parts, two part-structure energy
It is enough to cooperate, such that it is able to the vacuum tube of separate design is connected two-by-two as needed, two parts are set respectively
Put an end for vacuum tube, each part includes annular disk surfaces and multiple through holes, two annular disk surfaces are planar configuration,
Can be tightly combined and be easy to connection to install, multiple through holes are provided with the middle part of annular disk surfaces, through hole is used for two for being connected with each other
Be interconnected between the inner tube of individual vacuum tube, while formed between outer tube be interconnected, the outer wall of inner tube and the inwall of outer tube it
Between formed and vacuum chamber and be provided with heat bridge structure, to ensure that two parts are tightly combined and stabilization during connection, we are right
The face that two parts contact with each other is optimized, wherein a setting positive stop lug boss, and another setting is matched with positive stop lug boss
Groove, during installation, positive stop lug boss and groove fit can be positioned quickly, and ensure to make to installation
Mutual over-large displacement is not resulted in during so as to influence the effect of connection and sealing.Meanwhile, in order that the shape of vacuum chamber
State is maintained, and we are provided with sealing device at the position of inner tube connection and the position of outer tube connection, are sealed using O shapes
Circle, outer tube connecting portion uses the less O-ring seals of diameter using the O-ring seals one being relatively large in diameter, inner tube connecting portion
Two, to coordinate using and ensureing sealing effectiveness in use for two sealing rings, it is important to no matter the O shapes that inner tube connection is sealed
Sealing ring two（Using polytetrafluoro sealing gasket）Decrement makees any adjustment, can ensure that the beginning of sealing O-ring seals one of outside
Effective compression ratio scope is in eventually, it is ensured that sealed reliable, our decrements to two sealing rings are designed, and make O shapes close
Decrement of the decrement of seal one more than O-ring seals two.In addition, to two sealing ring own forms and connected simultaneously
Position is designed, and the cross sectional shape of the O-ring seals one is designed as into circle, and is provided with groove and the sealing of O shapes
The embedded groove of the matching of circle one, the opening size of the embedded groove is less than its bottom size and slightly larger than the size of O-ring seals one,
O-ring seals one are embedded in from the opening of embedded groove, and the part of the sealing ring after insertion is located at outside embedded groove and and positive stop lug boss
Extruding, it is ensured that the effect of sealing and positioned to sealing ring itself, so that flange shape between inner and outer pipe and heat bridge when connecting
Into closed cavity, formation between inner tube and air is effectively isolated, prevents joint directly contact air to conduct heat.By the O
The cross sectional shape of shape sealing ring two is designed as square, and the square annular groove matched with O-ring seals two is further designed in groove,
The O-ring seals two are located in square annular groove, and annular protrusion structure, the annular protrusion are further set on positive stop lug boss
Structure is matched with Q-RING groove shape, and extending partially into for its evagination contacted with O-ring seals two in square annular groove, forms one
Fixed plane contact form, the structure causes the sealing between inner tube and outer tube with certain elastic ability to bear and to pressure
Compensation effect when excessive.Certainly, the above-mentioned description to sealing ring cross sectional shape is not the unique restriction to the structure, as long as tool
The structure for having the function belongs to scope of the present utility model.
Preferred embodiment of the present utility model is the foregoing is only, is not used to limit the utility model, it is all at this
Any modification, equivalent and improvement made within the spirit and principle of utility model etc., should be included in the utility model
Protection domain within.
Claims (9)
1. tongue and groove vacuum flange, is arranged at the end of vacuum tube for connecting two vacuum tubes (11), it is characterised in that including
Two parts, are connected to an end for vacuum tube (11), and each part includes annular disk surfaces (1) and multiple through holes (2),
The through hole (2) is for the mutually interconnection between being interconnected between two inner tubes (12) of vacuum tube (11) and outer tube (13)
It is logical, vacuum is formed between said inner tube (12) and outer tube (13), on the face that two parts contact with each other, one of them is provided with
Positive stop lug boss (3), another is provided with the groove (4) matched with positive stop lug boss (3).
2. tongue and groove vacuum flange according to claim 1, it is characterised in that the positive stop lug boss (3) is matched somebody with somebody with groove (4)
O-ring seals are provided with the face of conjunction.
3. tongue and groove vacuum flange according to claim 2, it is characterised in that including two O-ring seals, and two O shapes
The diameter of sealing ring is different, and what is be relatively large in diameter is O-ring seals one (5), and it is O-ring seals two (6) that diameter is less.
4. tongue and groove vacuum flange according to claim 3, it is characterised in that the O-ring seals one being relatively large in diameter
(5) for being sealed to the position that the vacuum tube (11) outer tube (13) connect, the less O-ring seals two of diameter
(6) for being sealed to the position that the vacuum tube (11) inner tube (12) connect.
5. tongue and groove vacuum flange according to claim 4, it is characterised in that the decrement of the O-ring seals one (5)
More than the decrement of O-ring seals two (6).
6. according to one of them the described tongue and groove vacuum flange of claim 3 or 4 or 5, it is characterised in that the O-ring seals
One (5) cross sectional shape is to be provided with the embedded groove (7) matched with O-ring seals one (5), the insertion in circle, groove (4)
, less than its bottom size and slightly larger than the size of O-ring seals one (5), O-ring seals one (5) are from embedding for the opening size of groove (7)
Enter the opening insertion of groove (7).
7. according to one of them the described tongue and groove vacuum flange of claim 3 or 4 or 5, it is characterised in that the O-ring seals
Two (6) cross sectional shape is square, and the square annular groove (8) matched with O-ring seals two (6), the O are provided with groove (4)
Shape sealing ring two (6) is in square annular groove (8).
8. tongue and groove vacuum flange according to claim 7, it is characterised in that be provided with annular on the positive stop lug boss (3)
Bulge-structure (9), the annular protrusion structure (9) and square annular groove (8) form fit, and its evagination extends partially into Q-RING
Contacted with O-ring seals two (6) in groove (8).
9. tongue and groove vacuum flange according to claim 7, it is characterised in that the O-ring seals two (6) use poly- four
PVF pad.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201621394081.9U CN206268660U (en) | 2016-12-19 | 2016-12-19 | Tongue and groove vacuum flange |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201621394081.9U CN206268660U (en) | 2016-12-19 | 2016-12-19 | Tongue and groove vacuum flange |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN206268660U true CN206268660U (en) | 2017-06-20 |
Family
ID=59046841
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201621394081.9U Active CN206268660U (en) | 2016-12-19 | 2016-12-19 | Tongue and groove vacuum flange |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN206268660U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110939811A (en) * | 2019-12-25 | 2020-03-31 | 优普能源技术有限公司 | Vacuum low-temperature pipeline plane flange sealing structure and mounting method thereof |
| CN114135731A (en) * | 2021-11-30 | 2022-03-04 | 西北工业大学上海闵行协同创新中心 | Method for determining annular tenon of pipe joint and pipe joint with annular tenon |
-
2016
- 2016-12-19 CN CN201621394081.9U patent/CN206268660U/en active Active
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110939811A (en) * | 2019-12-25 | 2020-03-31 | 优普能源技术有限公司 | Vacuum low-temperature pipeline plane flange sealing structure and mounting method thereof |
| CN110939811B (en) * | 2019-12-25 | 2024-03-12 | 优捷特清洁能源有限公司 | Vacuum low-temperature pipeline plane flange sealing structure and installation method thereof |
| CN114135731A (en) * | 2021-11-30 | 2022-03-04 | 西北工业大学上海闵行协同创新中心 | Method for determining annular tenon of pipe joint and pipe joint with annular tenon |
| CN114135731B (en) * | 2021-11-30 | 2023-09-29 | 西北工业大学上海闵行协同创新中心 | Pipe joint ring tenon determination method and pipe joint with ring tenon |
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| GR01 | Patent grant |