CN109973749A - A kind of steel pipe class pipe fitting apex combustion seal and encapsulating method - Google Patents
A kind of steel pipe class pipe fitting apex combustion seal and encapsulating method Download PDFInfo
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- CN109973749A CN109973749A CN201910282336.4A CN201910282336A CN109973749A CN 109973749 A CN109973749 A CN 109973749A CN 201910282336 A CN201910282336 A CN 201910282336A CN 109973749 A CN109973749 A CN 109973749A
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- sealing
- adapter tube
- sealing plate
- annular convex
- convex platform
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Classifications
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- 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
- F16L55/12—Means for stopping flow from or in pipes or hoses by introducing into the pipe a member expandable in situ
- F16L55/128—Means for stopping flow from or in pipes or hoses by introducing into the pipe a member expandable in situ introduced axially into the pipe or hose
- F16L55/132—Means for stopping flow from or in pipes or hoses by introducing into the pipe a member expandable in situ introduced axially into the pipe or hose the closure device being a plug fixed by radially deforming the packing
- F16L55/134—Means for stopping flow from or in pipes or hoses by introducing into the pipe a member expandable in situ introduced axially into the pipe or hose the closure device being a plug fixed by radially deforming the packing by means of an inflatable packing
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- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Gasket Seals (AREA)
Abstract
The present invention relates to a kind of steel pipe class pipe fitting apex combustion seal and encapsulating methods, described device is made of sealing gland (1), sealing plate (4) and rubber ring (5), wherein rubber ring (5) covers outside the small end annular convex platform of sealing plate (4), by tensing sealing gland (1) and sealing plate (4), squeezes rubber ring (5) and be allowed to that elastic deformation occurs and be adjacent to sealing surface formation sealing.A kind of steel pipe class adapter tube apex combustion seal of the invention, manufacture are easy, and can change the relative dimensions of sealing device according to the different inner diameters size of adapter tube, to complete the sealing of various sizes of steel pipe class adapter tube, can effectively guarantee the nitrogen filled protection requirement of product.
Description
Technical field
The present invention relates to a kind of steel pipe class pipe fitting apex combustion seal and encapsulating methods, in particular to nuclear island two, three-level
The device of pressure vessel steel tubing pipe fitting radial seal.
Background technique
Very high to the cleannes requirement inside equipment in nuclear power generating equipment manufacturing field, device fabrication is completed and to equipment
It after inside carries out final cleaning, needs to seal each adapter tube, nitrogen charging gas shielded is carried out to equipment inside.Using inert gas be not easy with
Metal reacts to protect the drying and cleaning inside equipment.
For the reliability service of nuclear power plant, the adapter tube of nuclear island tankage and the interface of pipeline are to be welded to connect, and nuclear island holds
The adapter tube of device equipment is groove type, more uses flanged joint different from petrochemical industry tankage, and a large amount of core two, three-level are set
The characteristics of standby adapter tube is used as adapter tube using the better steel pipe of economy, and steel pipe class is taken over is that roundness deviation is big, and the processing of groove is only
The manufacturing process that manual polishing can be used, cause pipe end plane uneven, and tube wall is thin, and welding when easily deforms.
So cause such equipment take over the characteristics of be in pipe it is non-round, pipe end is uneven.Traditional seal with O ring and end face pressure
The adapter tube that close envelope is high suitable for circularity in managing, pipe end is smooth is not suitable for the interior adapter tube non-round, pipe end is uneven of pipe.Design one kind
Such pipe joint sealing device is very necessary.
Summary of the invention
In order to overcome the above problem, present inventor has performed sharp studies, and it is radially close to design a kind of steel pipe class pipe fitting
Seal apparatus, the device are mainly made of sealing gland, sealing plate and rubber ring, wherein small end annular of the rubber ring set in sealing plate
Outside boss, by tensing sealing gland and sealing plate, squeeze rubber ring be allowed to elastic deformation occurs and be adjacent to sealing surface formed it is close
Envelope, so as to complete the present invention.
In particular it is object of the present invention to provide following aspect:
First aspect present invention provides a kind of steel pipe class pipe fitting apex combustion seal, and described device includes sealing gland
1, sealing plate 4 and rubber ring 5.
According to the present invention, the small end of the sealing gland 1 and sealing plate 4 is respectively equipped with annular convex platform, 4 convex annular of sealing plate
The annular convex platform inner wall of platform outer wall and sealing gland 1 cooperates, and 5 sets of rubber ring outside the annular convex platform of 4 small end of sealing plate.
The big end disc diameter of the sealing gland 1 is greater than 6 outer diameter of adapter tube, and the annular convex platform outer diameter ratio of sealing gland 1 connects
6 internal diameter of pipe makes it to protrude into adapter tube 6 to when young 1mm；
The annular convex platform internal diameter of sealing gland 1 is 0.5mm at least bigger than the annular convex platform outer diameter of sealing plate 4, makes sealing gland 1
Annular convex platform can cover outside 4 annular convex platform of sealing plate.
In the present invention, the 4 big end outer diameter of sealing plate is less than 6 internal diameter of adapter tube, and preferably 4 big end outer diameter of sealing plate is than adapter tube 6
Internal diameter makes it smoothly to be fitted into adapter tube 6 to when young 1mm.
Wherein, the sealing gland 1 and sealing plate 4 are made of steel plate, are provided with ring between sealing gland 1 and adapter tube 6
Shape rubber pad；
Alternatively, sealing gland 1 is made of nylon sheet, preferably nylon sheet hardness is lower than 6 hardness of adapter tube.
5 height of rubber ring is lower than the height of 4 annular convex platform of sealing plate；
5 outer diameter of rubber ring is at least 1mm smaller than 6 internal diameter of adapter tube, makes it smoothly to be packed into 6 inner wall of adapter tube；
It is highly preferred that 5 internal diameter of rubber ring is 0~3mm more bigger than the small end annular convex platform outer diameter of sealing plate 4, so that rubber ring 5
It can cover outside the small end annular convex platform of sealing plate 4.
In the present invention, described device further includes stud 2 and nut 3；
Preferably, it being threaded hole on the small end annular convex platform of the sealing plate 4, threaded hole is perfectly even arranged,
Screw thread axially bored line is parallel to the axis of adapter tube 6, and through-hole is machined on sealing gland 1, and through-hole diameter is at least bigger than the outer diameter of stud 2
2mm, and cooperate with the threaded hole on sealing plate 4；
It is highly preferred that the number of stud 2 and nut 3 is even numbers, preferably 2-6 is a, more preferably 4.
According to the present invention, described 2 one end of stud is screwed into the threaded hole of 4 annular convex platform of sealing plate, and the other end passes through sealing
It is tightened after the through-hole of gland 1 with nut 3, continuous tightening nut 3, compression seal gland 1 presses sealing at a distance from sealing plate 4
The small end anchor ring of lid 1 and the big end anchor ring of sealing plate 4 squeeze rubber ring 5, make rubber ring 5 that elastic deformation occur and are bonded and compress close
The contact surface of sealing plate 4 and the inner wall of adapter tube 6, to form adapter tube sealing.
In the present invention, nut 3 is tightened simultaneously or repeatedly applies torque by opposite sequence when use, keeps 5 stress of rubber ring equal
Even, flexible deformation is uniform, realizes sealing.
In the present invention, the sealing device is integrally put into adapter tube 6, and keeps 1 large end face of sealing gland distance 6 nozzle of adapter tube
2~10mm.
Second aspect of the present invention additionally provides a kind of steel pipe class pipe fitting radial sealing method, and the method includes following
Step:
Step 1, the dress of plate 4 Yu stud 2 is then sealed outside the annular convex platform of 4 small end of sealing plate by 5 sets of rubber ring
Match, obtains assembly 1；
Step 2, assembly 1 described in sealing gland 1 and step 1 is assembled, screws in nut 3 to the surface for being adjacent to sealing gland 1,
Obtain assembly 2；
Step 3,2 entirety of assembly described in step 2 is put into adapter tube 6, and keeps 1 large end face of sealing gland distance adapter tube 6
2~10mm of nozzle tightens nut 3 at this time, is bonded rubber ring 5 and compresses the inner wall with the contact surface of sealing plate 4 and adapter tube 6,
Realize sealing.
Steel pipe class pipe fitting apex combustion seal provided by the present invention and the method being sealed using the device, can
To efficiently solve non-round, adapter tube that pipe end is uneven sealing problem in pipe, sealing effect is good, and core two, three-stage apparatus are connect
The sealing of pipe has great importance.
Beneficial effect possessed by the present invention includes:
1) steel pipe class pipe fitting apex combustion seal of the invention, structure is simple, is easy to make, and easy to operate, practical,
By adjusting sealing device size, it is applicable to various sizes of steel pipe class pipe fitting radial seal.
2) when carrying out the pipe fitting radial seal of steel pipe class using the device of the invention, sealing device is put into adapter tube, is led to
It crosses and tightens nut, be able to carry out Fast Installation, working efficiency can be improved；
3) the pipe fitting radial seal of steel pipe class is carried out using the device of the invention, can be effectively solved using traditional O
Poorly sealed problem when the sealing of shape circle and the adapter tube non-round in the compression seal pipe of end face, pipe end is uneven, can guarantee that pipe connects
The leakproofness of head；
4) the device of the invention carry out the radial seal of steel pipe class pipe fitting will not the inside and outside wall of butt tube cause to damage, guarantee
The quality of adapter tube.
Detailed description of the invention
Fig. 1 is a kind of steel pipe class pipe fitting apex combustion seal assembling schematic diagram；
Fig. 2 is sealing gland schematic diagram；
Fig. 3 is sealing plate schematic diagram；
Fig. 4 is stud schematic diagram；
Fig. 5 is rubber ring schematic diagram；
Drawing reference numeral explanation:
1- sealing gland；
2- stud；
3- nut；
4- sealing plate；
5- rubber ring；
6- adapter tube.
Specific embodiment
Below by drawings and examples, the present invention is described in more detail.Illustrated by these, the features of the present invention
It will be become more apparent from advantage clear.
Dedicated word " exemplary " means " being used as example, embodiment or illustrative " herein.Here as " exemplary "
Illustrated any embodiment should not necessarily be construed as preferred or advantageous over other embodiments.Although each of embodiment is shown in the attached drawings
In terms of kind, but unless otherwise indicated, it is not necessary to attached drawing drawn to scale.
Since a large amount of core two, three-stage apparatus adapter tube are used as adapter tube, such equipment using the better steel pipe of economy
The characteristics of adapter tube be in pipe it is non-round, pipe end is uneven.Traditional seal with O ring and end face compress sealing be suitable for managing in circularity it is high,
The smooth adapter tube of pipe end is not suitable for the interior adapter tube non-round, pipe end is uneven of pipe.
For this purpose, according to the present invention, on the one hand providing a kind of steel pipe class pipe fitting apex combustion seal, the steel pipe class pipe
Connector apex combustion seal, including sealing gland 1, sealing plate 4 and rubber ring 5, as shown in Figure 1.
According to the present invention, sealing gland 1 and the needs of sealing plate 4 link together, for example are connected to by way of engaging
Together.
In one preferred embodiment, the small end of the sealing gland 1 and sealing plate 4 is respectively equipped with annular convex platform,
The annular convex platform inner wall of 4 annular convex platform outer wall of sealing plate and sealing gland 1 cooperates, and 5 sets of rubber ring in 4 annular convex platform of sealing plate
On, as shown in Figures 2 and 3.
There are two end faces for sealing gland 1, are small end close to one end of adapter tube 6, one gone out by Vehicle Processing is provided on small end
A annular convex platform, another side corresponding with small end are big end, are the discs gone out by Vehicle Processing.
Similarly, sealing plate 4 is provided with annular convex platform on small end, another side corresponding with small end also there are two end face
For big end.
In order to be engaged to the annular convex platform being arranged in sealing plate 4 in the annular convex platform in sealing gland 1, need pair
The size of the annular convex platform of sealing gland 1 and sealing plate 4 is defined.
The annular convex platform internal diameter of sealing gland 1 is more bigger than the annular convex platform outer diameter of sealing plate 4.If sealing gland 1
Annular convex platform internal diameter is more much larger than the annular convex platform outer diameter of sealing plate 4, then is unfavorable for sealing, conversely, not allowing then easy to install.
In one preferred embodiment, annular convex platform outer diameter of the annular convex platform internal diameter of sealing gland 1 than sealing plate 4
At least big 0.5mm enables the annular convex platform of sealing gland 1 to cover outside 4 annular convex platform of sealing plate.
In further preferred embodiment, in order to preferably install, the annular convex platform internal diameter of sealing gland 1 is than sealing
The annular convex platform outer diameter of plate 4 at least big 1mm, most much 2mm, such as 1mm.
The present invention mainly passes through 1 small end annular convex platform end face of sealing gland extruding rubber ring 5 and brings it about elastic deformation
To form sealing, in order to obtain better seal effect, 1 small end annular convex platform end face of sealing gland can be designed to tiltedly
Face.
When 1 small end annular convex platform end face of sealing gland is plane, the pressure that rubber ring 5 is subject to is vertical with itself, rubber
The uniform deformation around of ring 5.When 1 small end annular convex platform end face of sealing gland is inclined-plane, the power that rubber ring 5 is subject to is uneven
It is even, it can preferably be squeezed to the gap among adapter tube 6 and sealing plate 4, sealing effect is more preferable.
1 small end annular convex platform end face of sealing gland is inclined small inclined-plane from inside to outside, and the inclination angle on inclined-plane is bigger, more has
Gap deformation conducive to from rubber ring 5 to 4 centre of adapter tube 6 and sealing plate.
In one preferred embodiment, Vehicle Processing goes out to tilt 1 small end annular convex platform end face of sealing gland from inside to outside
Inclined-plane, the angle [alpha] of inclined-plane and 1 end face of sealing gland is 0~89 °, as shown in Figure 2.
But inclination angle is too big, the area that inclined-plane is contacted with rubber ring 5 can become smaller, and the power that rubber ring 5 is subject to is also corresponding
Reduce, it is unfavorable to sealing instead.
In further preferred embodiment, Vehicle Processing goes out to incline 1 small end annular convex platform end face of sealing gland from inside to outside
The angle [alpha] of oblique inclined-plane, inclined-plane and 1 end face of sealing gland is 5~45 °.
According to the present invention, the disc diameter of the big end of sealing gland 1 is greater than the outer diameter of the adapter tube 6 with pipe fitting, in this way
Setting is the nozzle in order to allow the disc of 1 big end of sealing gland that can be completely covered by adapter tube 6, plays being easily installed and protection connects
The effect of 6 groove of pipe.
Particular determination is not done to the size for the outer diameter that the disc diameter of 1 big end of sealing gland is greater than adapter tube 6, but if too
Greatly, it will cause the inconvenience of installation.
In one preferred embodiment, the disc diameter of 1 big end of sealing gland can be at least bigger than the outer diameter of adapter tube 6
1cm, preferably 2cm.
According to the present invention, it needs the annular convex platform sealing gland 1 to extend into adapter tube 6, thus needs to press sealing
The outer diameter of the annular convex platform of lid 1 makes restriction.
Under the premise of can guarantee that the annular convex platform of sealing gland 1 can extend into adapter tube 6, sealing gland 1 is allowed as far as possible
The outer diameter of annular convex platform become smaller with the internal diameter difference of adapter tube 6, facilitate in this way in 1 shape of adapter tube 6, rubber ring 5 and sealing gland
At closed space, enhance sealing effect.
In one preferred embodiment, the annular convex platform outer diameter of sealing gland 1 makes than 6 internal diameter of adapter tube to when young 1mm
Can protrude into adapter tube 6.
But, the outer diameter of the annular convex platform of sealing gland 1 and the internal diameter difference of adapter tube 6 are too small, will increase the operation of installation
Difficulty.
In further preferred embodiment, the annular convex platform outer diameter of sealing gland 1 is than 6 internal diameter of adapter tube to when young
1.5mm, such as 2mm.
According to the present invention, the big end by sealing plate 4 is needed to protrude into adapter tube 6,4 big end outer diameter of sealing plate is less than adapter tube 6
Internal diameter.
In one preferred embodiment, the 4 big end outer diameter of sealing plate is less than 6 internal diameter of adapter tube, and preferably sealing plate 4 is big
It holds outer diameter than 6 internal diameter of adapter tube to when young 1mm, makes it smoothly to be fitted into adapter tube 6.
For the ease of installation, in further preferred embodiment, 4 big end outer diameter of sealing plate is at least than 6 internal diameter of adapter tube
Small 1.5mm, such as 2mm.
According to the present invention, particular determination is not done to the material of sealing gland 1, can be the material of high rigidity, it can also be with
It is the material of soft.
In one preferred embodiment, sealing gland 1 and sealing plate 4 are made of steel plate, in sealing gland 1 and adapter tube
Ring-shaped rubber pad is provided between 6, ring-shaped rubber cushion cover is in the outer circle protrusion of sealing gland 1.
Since sealing gland 1 and adapter tube are all steel part, ring-shaped rubber pad should be set between sealing gland 1 and adapter tube 6,
The groove of adapter tube 6 can not only be protected from damage in this way, moreover it is possible to reinforce sealing effect.
In further preferred embodiment, sealing gland 1 is made of nylon sheet, and preferably nylon sheet hardness is lower than adapter tube
6 hardness.
Since nylon sheet hardness is lower than adapter tube hardness, no setting is required at this time ring-shaped rubber pad just can protect adapter tube groove from
Damage, can make sealing device more succinct.
According to the present invention, the sealing of steel pipe class pipe fitting depends on rubber ring 5 in 1 small end convex annular of seal cover board
The elastic deformation generated under the extruding in end face.Since sealing gland 1 and sealing plate 4 are linked together by way of engaging,
So the height of rubber ring 5 cannot exceed the height of this 4 annular convex platform of sealing plate.
In one preferred embodiment, 5 height of rubber ring is lower than the height of 4 annular convex platform of sealing plate.
According to the present invention, 5 sets of rubber ring on the annular convex platform of sealing plate 4, rubber ring 5, sealing plate 4 annular convex platform and
The internal diameter three of adapter tube 6 agrees with closer, and attainable sealing effect is better.But three agrees with closer, then means
Installation it is more difficult, it is therefore desirable to restriction is made to the size of three.
In one preferred embodiment, 5 outer diameter of rubber ring is at least 1mm smaller than 6 internal diameter of adapter tube, makes it suitable
Benefit is packed into the inner wall of adapter tube 6, as shown in Figure 5.
In further preferred embodiment, the outer diameter of rubber ring 5 is at least 2mm smaller than 6 internal diameter of adapter tube, such as 1.5mm.
In one preferred embodiment, 5 internal diameter of rubber ring more bigger than the small end annular convex platform outer diameter of sealing plate 4 0~
3mm guarantees rubber ring 5 by circumferential compression so that 5 inner wall of rubber ring and the small end annular convex platform outer wall of sealing plate 4 fit closely
Its flexible deformation is radially outward when stress.
In order to preferably fit closely, in further preferred embodiment, 5 internal diameter of rubber ring is than sealing plate 4
Bigger 0~the 2mm of small end annular convex platform outer diameter, such as 0~1mm.
According to the present invention, the elastic deformation of rubber ring 5 is utilized mainly to achieve the effect that sealing, therefore rubber ring 5
Elastic deformation ability it is most important.The elastic deformation ability of rubber ring 5 depends on the material of rubber ring 5 again.
In one preferred embodiment, rubber ring 5 is made of rubber.
Theoretically, the elastic deformation performance of rubber ring 5 is better, and the sealing effect that can be obtained is better.But if rubber
Ring 5 is too soft, and the contact surface of rubber ring 5 and adapter tube 6 cannot effectively bear the frictional force as caused by internal pressure after being adjacent to, to make rubber
Ring 5, which generates, to be slid and seal failure.So to be controlled to the hardness of rubber ring.
In one preferred embodiment, rubber ring hardness be shore hardness 40~80, further preferably 50~70.
According to the present invention, in order to increase 1 small end annular convex platform end face of sealing gland to the extruding force of rubber ring 5, the present invention
Described device further includes stud 2 and nut 3, as shown in Figure 4.
The present invention does not do particular provisions to the material of stud 2 and nut 3, in one preferred embodiment, stud 2 by
Rod iron is made.
For convenience with tightening nut 3 after tool holder, 2 end of stud it is processable go out several planes, preferably 2~4
It is a, such as 4.
In one preferred embodiment, nut 3 selects steel standard nut, cooperates the screw thread of stud 2.
The quantity of stud 2 and nut 3 is more, is more conducive to increase 1 small end annular convex platform end face of sealing gland to rubber ring 5
Extruding force.
In one preferred embodiment, the number of stud 2 and nut 3 is even numbers, and preferably 2-6 is a, more preferably 4
It is a.
According to the present invention, to work, stud 2 needs the spiral shell through sealing gland 1 and sealing plate 4 for stud 2 and nut 3
Line cooperation, it is therefore desirable to aperture be set in sealing gland 1, design threaded hole on sealing plate 4.
In one preferred embodiment, it is threaded hole on the small end annular convex platform of sealing plate 4, threaded hole is preferred
It is evenly arranged, screw thread axially bored line is parallel to the axis of adapter tube 6, and the stud 2 screwed in and 1 big end end face of sealing gland is made to keep hanging down
Directly.
In a preferred embodiment, unthreaded hole is processed on the small end annular convex platform of sealing plate 4, stud is single head spiral shell
Line, the unthreaded hole on one section of non-threaded 4 annular convex platform of insertion sealing plate of stud, is welded and fixed.
In order to facilitate the insertion of stud 2, the outer diameter for the ratio stud 2 that the through-hole on sealing gland 1 should be arranged is bigger, still
No more than the outer diameter of nut 3.
In one preferred embodiment, be machined with through-hole on sealing gland 1, through-hole diameter than stud 2 outer diameter extremely
Few big 2mm, and cooperate with the threaded hole on sealing plate 4.
In further preferred embodiment, through-hole, outer diameter of the through-hole diameter than stud 2 are machined on sealing gland 1
At least big 3mm, such as 3mm.
In one preferred embodiment, four uniformly distributed threaded holes, screw thread are processed on the annular convex platform of sealing plate
Pore size and stud 2 cooperate, and screw thread axially bored line is parallel to the axis of adapter tube 6, and enable four studs 2 simultaneously by sealing pressure
4 cooperation through-holes on lid 1.
According to the present invention, 2 one end of stud is screwed into the threaded hole of 4 annular convex platform of sealing plate, and the other end passes through sealing gland 1
Through-hole after tightened with nut 3, continuous tightening nut 3, compression seal gland 1 makes sealing gland 1 at a distance from sealing plate 4
The big end anchor ring of small end anchor ring and sealing plate 4 squeezes rubber ring 5, makes rubber ring 5 that elastic deformation occur and is bonded and compresses sealing plate 4
Contact surface and adapter tube 6 inner wall, thus formed adapter tube sealing.
In order to make the uniform force of entire sealing gland 1 with sealing plate 4, in one preferred embodiment, when use
Nut 3 is tightened simultaneously or repeatedly applies torque by opposite sequence, and rubber ring uniform force is made, and flexible deformation is uniform, realizes sealing.
According to the present invention, when nut 3 is tightened, rubber ring 5 is squeezed and length becomes smaller, and sealing gland 1 can be made to move to adapter tube 6
It is dynamic, to avoid rubber ring 5 from generating sliding, frictionally damage occurs, assembling and installation site to sealing device is needed to make restriction.
In one preferred embodiment, when assembling sealing gland 1, sealing plate 4 and rubber ring 5, sealing gland 1 is kept
Small end face namely the annular convex platform end face of sealing gland 1 be in contact with rubber ring 5.
In one preferred embodiment, when installing sealing device, sealing device is integrally put into adapter tube 6, keeps sealing
Gland 1 big end distance 6 2~10mm of nozzle of adapter tube.
In one preferred embodiment, when nut 3 is tightened, rubber ring 5 is squeezed and length becomes smaller, and keeps sealing pressure
1 big end of lid can make sealing gland 1 to the end of adapter tube 6 close to the distance of annular convex platform side end face distance 6 2~10mm of end face of adapter tube
Face is mobile, avoids rubber ring 5 from generating sliding, can effectively avoid the frictionally damage of rubber ring 5, be advantageously implemented sealing.
According to the present invention, a kind of steel pipe class pipe fitting radial sealing method is on the other hand additionally provided.
In one preferred embodiment, a kind of steel pipe class pipe fitting radial sealing method of the present invention, is preferably adopted
It is sealed, be the described method comprises the following steps with device described above:
Step 1, the dress of plate 4 Yu stud 2 is then sealed outside the annular convex platform of 4 small end of sealing plate by 5 sets of rubber ring
Match, obtains assembly 1；
Step 2, assembly 1 described in sealing gland 1 and step 1 is assembled, screws in nut 3 to the surface for being adjacent to sealing gland 1,
Obtain assembly 2；
In one preferred embodiment, it before in the inner wall that sealing device is inserted into adapter tube 6, preferably will first connect
The inner wall contact surface wiped clean of pipe 6, may have the position of contact with the inner wall of adapter tube 6, need to polish, must not jagged, weldering
Tumor etc..
The assembling of sealing device includes but is not limited to assembling mode below:
In one preferred embodiment, can be first now by 5 sets of rubber ring outside the annular convex platform of 4 small end of sealing plate, it will
Sealing gland 1 and sealing plate 4 fit together, and are then screwed into stud 2, cover top nut 3 again later.
In one preferred embodiment, can also first by 5 sets of rubber ring outside the annular convex platform of 4 small end of sealing plate,
Stud 2 is screwed into sealing plate 4 later, puts on 1 rear enclosure top nut 3 of sealing gland.
In one preferred embodiment, when assembling sealing gland 1, sealing plate 4 and rubber ring 5, it is ensured that sealing pressure
The small end face of lid 1 namely the annular convex platform end face of sealing gland 1 are kept in contact with rubber ring 5.
Step 3,2 entirety of assembly described in step 2 is put into adapter tube 6, and 1 big end of sealing gland distance adapter tube 6 is kept to manage
2~10mm of mouth, tightens nut 3 at this time, is bonded rubber ring 5 and compresses the inner wall with the contact surface of sealing plate 4 and adapter tube 6, real
Now seal.
In one preferred embodiment, before tightening nut 3,2 entirety of assembly described in step 2 is put into adapter tube
When 6, the large end face of sealing gland 1 is not in contact with the nozzle of adapter tube 6, and the two keeps 2-10mm along the axis direction of adapter tube 6
Distance.
The distance of reserved 2-10mm, it can be ensured that the small end annular convex platform of sealing gland 1 has fortune along the axis direction of adapter tube 6
Dynamic space.Tighten nut 3, until twist it is motionless until, sealing gland 1 can under the extruding of nut 3, along adapter tube 6 axis direction
Movement squeezes rubber ring 5 so as to cause the small end annular convex platform of sealing gland 1, so that rubber ring 2 expands, and then reaches sealing
Effect.
If the large end face of sealing gland 1 is in contact with the nozzle of adapter tube 6 before tightening nut 3, nut 3 is being tightened
During, rubber ring 5 can generate sliding, therefore rubber ring 5 easily causes to damage due to rubbing, and is unfavorable for the realization of sealing.
When in one preferred embodiment, using the device, by 6 nozzle 2 of the big end of sealing gland 1 distance adapter tube~
10mm, then with spanner substep uniformly tighten four nuts, make rubber ring 5 simultaneously circumferentially compressed and axial stress after, rubber
Rubber ring 5 can be bonded simultaneously and compress the inner wall with the contact surface of sealing plate 4 and adapter tube 6, realize sealing.
A kind of steel pipe class pipe fitting apex combustion seal of the invention, manufacture are easy, and leakproofness is reliable.It is easy to operate, it can
According to the different inner diameters size of adapter tube 6, the small end annular convex platform of sealing gland 1 and sealing plate 4 is processed, various sizes of rubber is selected
Rubber ring 5 can also meet different sealed pressures by the length and hardness for changing rubber ring 5, flexibly to complete the sealing of adapter tube
Property it is high, it is versatile.
Embodiment
As shown in Figs. 1-5, wherein
Fig. 1 is a kind of steel pipe class pipe fitting apex combustion seal assembling schematic diagram, which includes sealing gland 1, sealing
Plate 4, rubber ring 5, stud 2 and nut 3.
Fig. 2 is sealing gland schematic diagram, and sealing gland 1 is made of nylon sheet, and annular convex platform outer diameter is smaller than 6 internal diameter of adapter tube
2mm, annular convex platform internal diameter are 0.5mm bigger than the annular convex platform outer diameter of sealing plate 4.The disc diameter of 1 big end of sealing gland is than adapter tube 6
The big 2cm of outer diameter, the angle [alpha] of inclined-plane and 1 end face of sealing gland is 20 °.Through-hole, through-hole diameter ratio are machined on sealing gland 1
The big 2mm of the outer diameter of stud 2.
Fig. 3 is sealing plate schematic diagram, and sealing plate 4 is made of steel plate, and big end outer diameter is 2mm smaller than 6 internal diameter of adapter tube.Sealing plate
4 threaded holes are machined on 4 small end annular convex platform, threaded hole perfectly even arranges that screw thread axially bored line is parallel to adapter tube 6
Axis.
Fig. 4 is stud schematic diagram, and stud 2 is made of rod iron, in processable 4 planes out in 2 end of stud.Nut 3 is selected
Steel standard nut cooperates the screw thread of stud 2.The number of stud 2 and nut 3 is 4.
Fig. 5 is rubber ring schematic diagram, and rubber ring 5 is made of rubber, and rubber ring hardness is shore hardness 50~70.Rubber ring
5 outer diameter is 1mm smaller than 6 internal diameter of adapter tube, and 5 internal diameter of rubber ring is 0.5mm bigger than the small end annular convex platform outer diameter of sealing plate 4.
In use, first will take over 6 inner wall contact surface wiped clean, there may be the position of contact with the inner wall of adapter tube 6,
It needs to polish, it must not jagged, overlap etc..Later by 5 sets of rubber ring in sealing plate 4 outer circle protrusion, by sealing gland 1 and sealing plate
4 fit together, and are then screwed into stud 2, cover top nut 3 again later.Finally by the big end of sealing gland 1 close to annular convex platform side
The distance of end face distance 6 2~10mm of end face of adapter tube uniformly tightens four nuts with spanner substep, makes rubber ring 5 simultaneously by week
To after compression and axial stress, rubber ring 5 can be bonded simultaneously and compress the inner wall with the contact surface of sealing plate 4 and adapter tube 6, realize
Sealing.
In the description of the present invention, it should be noted that the instruction such as term " on ", "lower", "inner", "outside", "front", "rear"
Orientation or positional relationship be that the description present invention is merely for convenience of based on the orientation or positional relationship under working condition of the present invention
It is described with simplifying, rather than the device or element of indication or suggestion meaning must have a particular orientation, with specific orientation structure
It makes and operates, therefore be not considered as limiting the invention.In addition, term " first ", " second ", " third ", " the 4th " are only
For descriptive purposes, it is not understood to indicate or imply relative importance.
In the description of the present invention, it should be noted that unless otherwise clearly defined and limited, term " installation " " phase
Even " " connection " should broadly understood, for example, it may be being fixedly connected, may be a detachable connection, or the connection of one；It can
To be mechanical connection, it is also possible to be electrically connected；It can be and be directly connected to, can also be indirectly connected with, be can be by intermediary
Connection inside two elements.For the ordinary skill in the art, above-mentioned term can be understood at this with concrete condition
Concrete meaning in invention.
Combining preferred embodiment above, the present invention is described, but these embodiments are only exemplary
, only play the role of illustrative.On this basis, a variety of replacements and improvement can be carried out to the present invention, these each fall within this
In the protection scope of invention.
Claims (10)
1. a kind of steel pipe class pipe fitting apex combustion seal, which is characterized in that described device includes sealing gland (1), sealing plate
(4) and rubber ring (5).
2. sealing device according to claim 1, which is characterized in that the small end of the sealing gland (1) and sealing plate (4)
It is respectively equipped with annular convex platform, the annular convex platform inner wall cooperation of sealing plate (4) annular convex platform outer wall and sealing gland (1), rubber ring
(5) it covers outside the annular convex platform of sealing plate (4) small end.
3. sealing device according to claim 2, which is characterized in that the big end disc diameter of sealing gland (1), which is greater than, to be connect
(6) outer diameter is managed, the annular convex platform outer diameter of sealing gland (1), to when young 1mm, makes it to protrude into adapter tube (6) than adapter tube (6) internal diameter；
The annular convex platform internal diameter of sealing gland (1) is 0.5mm at least bigger than the annular convex platform outer diameter of sealing plate (4), makes sealing gland
(1) annular convex platform can cover outside sealing plate (4) annular convex platform.
4. the apparatus according to claim 1, which is characterized in that sealing plate (4) big end outer diameter is less than adapter tube (6) internal diameter, excellent
Sealing plate (4) big end outer diameter is selected, to when young 1mm, to make it smoothly to be fitted into adapter tube (6) than adapter tube (6) internal diameter.
5. sealing device according to claim 1, which is characterized in that sealing gland (1) and sealing plate (4) are by steel plate system
At, sealing gland (1) and adapter tube (6) between be provided with ring-shaped rubber pad；
Alternatively, sealing gland (1) is made of nylon sheet, preferably nylon sheet hardness is lower than adapter tube (6) hardness.
6. sealing device according to claim 1, it is characterised in that: the rubber ring (5) is highly lower than sealing plate (4) ring
The height of shape boss；
Preferably, rubber ring (5) outer diameter makes it to be packed into adapter tube (6) inner wall than adapter tube (6) internal diameter to when young 1mm；
It is highly preferred that rubber ring (5) internal diameter is 0~3mm bigger than the small end annular convex platform outer diameter of sealing plate (4), so that rubber ring (5)
It can cover outside the annular convex platform of sealing plate (4) small end.
7. sealing device according to claim 1, it is characterised in that: described device further includes stud (2) and nut (3)；
Preferably, it is threaded hole on the small end annular convex platform of the sealing plate (4), threaded hole is perfectly even arranged, spiral shell
Pit axis is parallel to the axis of adapter tube (6), is machined with through-hole on sealing gland (1), through-hole diameter than stud (2) outer diameter extremely
Few big 2mm, and cooperate with the threaded hole on sealing plate (4)；
It is highly preferred that the number of stud (2) and nut (3) is even numbers, preferably 2-6 is a, more preferably 4.
8. sealing device according to claim 7, it is characterised in that: stud (2) one end is screwed into sealing plate (4) annular convex platform
Threaded hole in, the other end pass through sealing gland (1) through-hole after tightened with nut (3), continuous tightening nut (3), compression it is close
For sealed cover (1) at a distance from sealing plate (4), the big end anchor ring of the small end anchor ring and sealing plate (4) that make sealing gland (1) squeezes rubber
Rubber ring (5) makes rubber ring (5) that elastic deformation occurs and is bonded and compresses the contact surface of sealing plate (4) and the inner wall of adapter tube (6), from
And adapter tube sealing is formed, and/or
Nut (3) is tightened simultaneously or repeatedly applies torque by opposite sequence when use, makes rubber ring (5) uniform force, and elasticity becomes
Shape is uniform, realizes sealing.
9. according to claim 1 to sealing device described in one of 8, it is characterised in that: sealing device is integrally put into adapter tube (6),
And keep sealing gland (1) large end face distance adapter tube (6) 2~10mm of nozzle.
10. a kind of steel pipe class pipe fitting radial sealing method, it is preferred to use device described in one of claim 1 to 9 carries out close
Envelope, which is characterized in that the described method comprises the following steps:
Step 1, rubber ring (5) is covered outside the annular convex platform of sealing plate (4) small end, is then sealed plate (4) and stud (2)
Assembly, obtain assembly (1)；
Step 2, assembly (1) described in assembling sealing gland (1) and step 1, screw-in nut (3) is to being adjacent to sealing gland (1)
Surface obtains assembly (2)；
Step 3, assembly described in step 2 (2) is integrally put into adapter tube (6), and keeps sealing gland (1) large end face distance adapter tube
(6) 2~10mm of nozzle tightens nut (3) at this time, is bonded rubber ring (5) and compresses and the contact surface and adapter tube of sealing plate (4)
(6) inner wall realizes sealing.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910282336.4A CN109973749A (en) | 2019-04-09 | 2019-04-09 | A kind of steel pipe class pipe fitting apex combustion seal and encapsulating method |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910282336.4A CN109973749A (en) | 2019-04-09 | 2019-04-09 | A kind of steel pipe class pipe fitting apex combustion seal and encapsulating method |
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|---|---|
| CN109973749A true CN109973749A (en) | 2019-07-05 |
Family
ID=67083761
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|---|---|---|---|
| CN201910282336.4A Pending CN109973749A (en) | 2019-04-09 | 2019-04-09 | A kind of steel pipe class pipe fitting apex combustion seal and encapsulating method |
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| CN (1) | CN109973749A (en) |
Cited By (3)
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| CN112431997A (en) * | 2020-11-20 | 2021-03-02 | 郑州铁路职业技术学院 | Pipeline dislocation prosthetic devices |
| CN112628519A (en) * | 2019-10-08 | 2021-04-09 | 中国石油化工股份有限公司 | High-pressure self-tightening type pipeline plug and application thereof |
| CN113983211A (en) * | 2021-10-25 | 2022-01-28 | 西安热工研究院有限公司 | Boiler chemical cleaning temporary interface device after dismantling of check valve of thermal power plant |
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