CN110307336A - Bilateral sealing device - Google Patents
Bilateral sealing device Download PDFInfo
- Publication number
- CN110307336A CN110307336A CN201910612983.7A CN201910612983A CN110307336A CN 110307336 A CN110307336 A CN 110307336A CN 201910612983 A CN201910612983 A CN 201910612983A CN 110307336 A CN110307336 A CN 110307336A
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- Prior art keywords
- sealing
- slot
- ring
- holding tank
- lattice
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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
- F16J—PISTONS; CYLINDERS; SEALINGS
- F16J15/00—Sealings
- F16J15/02—Sealings between relatively-stationary surfaces
- F16J15/06—Sealings between relatively-stationary surfaces with solid packing compressed between sealing surfaces
- F16J15/10—Sealings between relatively-stationary surfaces with solid packing compressed between sealing surfaces with non-metallic packing
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- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Gasket Seals (AREA)
Abstract
The present invention provides a kind of bilateral sealing devices, are related to sealing structure correlative technology field, solve that sealing device intensity is low, the bad technical problem of sealing effect.The device includes sealing ring, support ring and spring, holding tank is provided on sealing ring, holding tank is configured to the annular groove circumferentially formed along sealing ring, there are two holding tank settings, two holding tanks are respectively formed at the both ends in sealing ring axial direction, two receiving channel openings are towards on the contrary, the section of support ring is inverted T-shaped structure, there are two support ring settings, a support ring is embedded in two holding tanks, holding tank is separated into the first slot and the second slot in the radially support ring of sealing ring, the opening of first slot and the second slot is in open state, spring is configured to garter spring, there are four spring settings, a spring is respectively embedded in the first slot and the second slot of two holding tanks.The present invention is for the sealing between two components of cryogenic high pressure environment.
Description
Technical field
The present invention relates to sealing structure correlative technology fields, more particularly, to a kind of bilateral sealing device.
Background technique
Liquefied petroleum gas (LNG), space transporter transmitting low temperature, highly pressurised liquid such as liquid fuel (liquid hydrogen, liquid oxygen)
Need to use the Chemical Process Equipments such as a large amount of Subzero valve, pump, compressor during transporting and storing.These worst cold cases make
Chemical machinery require use higher performance sealing device, common rubber seal since material is easy aging, and
Influenced by high/low temperature bigger, when the complicated occasion such as low temperature, high pressure uses, Reliability comparotive is low.The prior art mostly uses spring
Accumulation of energy sealing, for example traditional rubber seal is replaced using the teflon seal device of inner liner metal spring.Spring energy-storage
The sturdy sealing surface of collet lip arm is forced by acting force of the spring when seal apparatus operating on low voltage, but the effect under hyperbaric environment is not
Obviously, the intensity of sealing device entirety is mostly relatively low, moreover, the glass transition temperature of polytetrafluoroethylene (PTFE) is higher, in low temperature
Under become fragile, therefore it is minimum using temperature be about -110 DEG C, good sealing effect can not be played in many circumstances.
Summary of the invention
The purpose of the present invention is to provide a kind of bilateral sealing devices, strong to solve sealing device existing in the prior art
Spend inadequate, not good etc. enough technical problems of sealing effect.Optimal technical scheme institute energy in many technical solutions provided by the invention
The many technical effects elaboration as detailed below generated.
To achieve the above object, the present invention provides following technical schemes:
A kind of bilateral sealing device provided by the invention, including sealing ring, support ring and spring are arranged on the sealing ring
There is holding tank, the holding tank is configured to that the annular groove of the sealing ring circumferentially formed, the holding tank is provided with two
A, two holding tanks are respectively formed at the both ends in the sealing ring axial direction, two receiving channel openings towards on the contrary,
The section of the support ring is inverted T-shaped structure, and there are two the support ring settings, in two holding tanks
Be embedded in a support ring, the sealing ring the radially described support ring by the holding tank be separated into the first slot and
The opening of second slot, first slot and second slot is in open state,
The spring is configured to garter spring, and there are four the spring settings, and described the of two holding tanks
The spring is respectively embedded in one slot and second slot.
Preferably, the sealing ring is made of the compound polyvinylidene fluoride material of carbon fiber.
Preferably, the sealing ring further includes the first sealing positioned at the sealing ring radially inner side, and is located at described
Second sealing of sealing ring radial outside, first sealing and second sealing constitute the side of the holding tank
Wall,
First sealing and second sealing are configured to radial to the holding tank along the sealing ring
Outside forms the thin-wall construction of arc protrusion.
Preferably, the bottom wall of the holding tank forms the card slot with support ring clamping, and the card slot is configured to along institute
State the annular groove of sealing ring circumferentially formed.
Preferably, the support ring includes clamping portion and lattice, and the clamping portion and the lattice are annulus knot
It is the structure for being inverted T shape that structure, the clamping portion and the lattice, which are arranged in a mutually vertical manner Formation cross-section,
The clamping portion snaps fit onto the card slot,
The holding tank is separated into first slot and second slot by the lattice.
Preferably, the lattice radially inner side wall and radial outside wall are configured to arc-shaped concave.
Preferably, the lattice reaches the outside of the holding tank far from the end of the clamping portion.
Preferably, conductance slot is formed on end face of the lattice far from the clamping portion, the conductance slot will be described
The radially inner side and radial outside of lattice are connected.
Preferably, via hole is provided on the lattice, the via hole leads first slot and second slot
It is logical.
Preferably, the sealing ring is structure as a whole.
The invention has the benefit that two holding tanks are arranged in sealing ring, two way seal function is made it have.Support ring
Setting keeps sealing device integral strength more preferable, and holding tank is divided into the first slot to support ring and the second slot facilitates installation bullet
Spring.And the first slot and the second channel opening are in open state, and fluid is facilitated to enter, convenient for improving sealing effect using Fluid pressure.
Detailed description of the invention
In order to more clearly explain the embodiment of the invention or the technical proposal in the existing technology, to embodiment or will show below
There is attached drawing needed in technical description to be briefly described, it should be apparent that, the accompanying drawings in the following description is only this
Some embodiments of invention for those of ordinary skill in the art without creative efforts, can be with
It obtains other drawings based on these drawings.
Fig. 1 shows the structural schematic diagram of bilateral sealing device provided by the invention；
Fig. 2 shows the schematic cross-sections of sealing ring；
Fig. 3 shows the schematic cross-section of sealing ring Yu support ring assembled state；
Fig. 4 shows bilateral sealing device installation condition schematic partial cross-sectional view；
Fig. 5 shows the schematic top plan view of the support ring of setting conductance slot；
Fig. 6 shows the schematic side view of the support ring of setting conductance slot；
Fig. 7 shows the schematic top plan view of the support ring of setting via hole.
In figure: 10, sealing ring；11, holding tank；111, the first slot；112, the second slot；12, the first sealing；13, second
Sealing；14, card slot；20, support ring；21, clamping portion；22, lattice；221, conductance slot；222, via hole；30, spring；
40, first structure；50, the second structure.
Specific embodiment
To make the object, technical solutions and advantages of the present invention clearer, technical solution of the present invention will be carried out below
Detailed description.Obviously, described embodiments are only a part of the embodiments of the present invention, instead of all the embodiments.Base
Embodiment in the present invention, those of ordinary skill in the art are obtained all without making creative work
Other embodiment belongs to the range that the present invention is protected.
The present invention provides a kind of bilateral sealing devices, as shown in Figure 1 and Figure 2, including sealing ring 10, support ring 20 and bullet
Spring 30, the sealing ring 10, support ring 20 and spring 30 are configured to ring structure, are provided with holding tank on the sealing ring 10
11, the support ring 20 and the spring 30 are arranged in the holding tank 11.
There are two the holding tanks 11, two holding tanks 11 to be arranged in the sealing ring for setting on the sealing ring 10
Both ends in 10 axial directions, and the opening of two holding tanks 11 is towards on the contrary, make it have two way seal function.Preferably,
The sealing ring 10 is made of the compound polyvinylidene fluoride material of carbon fiber, which still has preferable compression under extremely low temperature
Rebound degree and compression strength make it in low temperature environment to ensure that cryogenic high pressure leakproofness so that its resistance to low temperature is more preferable
Under can have better seal effect and higher reliability, it is preferable that Applicable temperature range be -196 DEG C~150 DEG C.Institute
It states the compound Kynoar of carbon fiber to be compounded to form by carbon fiber and Kynoar, specifically, the component of carbon fiber is 0.8-
2, the component of Kynoar is 8-9.2.Optimal be carbon fiber component is 1, and the component of Kynoar is 9, and is matched in component
It is 20MPa, compression strength 40MPa than lower acquisition tensile strength, and is not added with the tension of the polyvinylidene fluoride material of carbon fiber
Intensity is usually 15MPa, compression strength 25MPa, it is seen then that has biggish promotion to material integral strength after addition carbon fiber.
The sealing ring 10 is configured to overall structure, to keep its axially directed longer, deflection is not susceptible to when being under pressure, can be with
Guarantee that sealing effect is preferable.
The cross-sectional configuration of the support ring 20 is inverted T-shaped structure, and there are two the settings of support ring 20, described in two
The support ring 20 is embedded in holding tank 11.As shown in figure 3, the support ring 20 is in the radial direction side of the sealing ring 10
Upwards, the holding tank 11 is separated into the first slot 111 and the second slot 112, first slot 111 is located at the support ring 20
Radially inner side, second slot 112 are located at the radial outside of the support ring 20.Also, first slot 111 and described second
The opening of slot 112 is in opening-wide state, i.e., the opening of described first slot 111 and the second slot 112 does not have structure to block it, this
Sample can enable fluid to can smoothly enter into first slot 111 and second slot 112, when fluid is in high pressure conditions
When, it can play the role of improving sealing effect (introducing in detail below).
The spring 30 is configured to garter spring, and there are four the settings of spring 30, and four springs 30 are distinguished
It is embedded into first slot 111 and second slot 112 of two holding tanks 11.
As shown in Figure 2, it is preferable that the sealing ring 10 further includes being located at the first sealing 12 of its radially inner side and being located at
Second sealing 13 of its radial outside, first sealing 12 and second sealing 13 constitute the holding tank 11
Side wall, also, first sealing 12 and second sealing 13 are configured to along the sealing ring 10 radially
The arc formed respectively to the inner side and outer side of the sealing ring 10 protrudes thin-wall construction, that is, first sealing 12 is to institute
The radially inner side protrusion of sealing ring 10 is stated, second sealing 13 is protruded to the radial outside of the sealing ring 10, and described
First sealing 12 and the second sealing 13 be located at 11 inside of holding tank avoid be configured to inner concave arc surface, make the receiving
The inner wall of slot 10 forms arcwall face, is matched with facilitating with the shape of the spring 30, more stable after installing the spring 30,
It is not easy to skid off out of described holding tank 10.
Card slot 14 is formed on the bottom wall of the holding tank 11, the card slot 14 with the support ring 20 for being blocked
It connecing, the card slot 14 to be formed on the bottom wall of the holding tank 11 along being recessed with the radial vertical direction of the sealing ring 10,
Also, the card slot 14 forms annular groove along the circumferential of the sealing ring 10.
The support ring 20 includes clamping portion 21 and lattice 22, and the clamping portion 21 and the lattice 22 are configured to
Ring structure, also, the size of the clamping portion 21 in the radial direction thereof is greater than the size in axial direction, and the lattice 22 is in its axis
Upward size is greater than its size radially.The lattice 22 it is vertical with the clamping portion 21 be connected to the clamping portion
On 21, Formation cross-section is the ring structure for being inverted T shape.Preferably, the clamping portion 21 and the lattice 22 are integrally formed, make
The support ring 20 is configured to overall structure, improves its intensity and keeps its processing more convenient.Further, the support ring 20 by
The higher metal material of hardness is made, to guarantee its intensity with higher, and.
As shown in figure 3, the clamping portion 21 can be encased in the card slot 14, and the clamping portion 21 be encased in it is described
When in card slot 14, certain deformation occurs for the card slot 14, and the card slot 14 is enable to clamp the clamping portion 21, makes described
Clamping portion 21 can not voluntarily be skidded off out of described card slot 14, so that the support ring 20 be made to be mounted in the holding tank 11.
Preferably, the thickness in 21 axial direction of clamping portion, equal to the depth of the card slot 14, so as to so that the clamping portion 21 is complete
It is embedded into the card slot 14 entirely, the clamping portion 21 is made not occupy the space in the holding tank 11.
At least part of the lattice 22 is located in the holding tank 11, it is preferable that in the diameter of the sealing ring 10
Upwards, the lattice 22 is located at the middle position of the holding tank 11, and the holding tank 11 is separated by the lattice 22
First slot 111 and second slot 112.
Preferably, the radially inner side wall of the lattice 22 and radial outside wall construct arc-shaped concave, i.e. its inner sidewall
Cambered surface is formed to its inner recess with lateral wall.The inner sidewall of the lattice 22 and first sealing 12 constitute described
The side wall of first slot 111, also, the inner sidewall of first sealing 12 and the lattice 22 is configured to curved wall,
And be oppositely arranged, to play position-limiting action to the spring 30, the spring 30 is encased in first slot 111 and is not easy to slide
Out, the reliability that the spring 30 is installed is improved.Similarly, the lateral wall of second sealing 13 and the lattice 22 is equal
It is configured to curved wall, and is oppositely arranged, to play position-limiting action to the spring 30, the spring 30 is encased in described second
It is not easy to skid off in slot 112, improves the reliability that the spring 30 is installed.
Preferably, when the support ring 20 is encased in the holding tank 11, the lattice 22 is far from the clamping portion
21 end reaches the outside of the holding tank 11, in the axial direction, passes through the lattice 22 of the support ring 20
Contacted with other structures, so that two ends in 10 axial direction of sealing ring be made not contact with other structures, to avoid
Non-functional abrasion is caused to the sealing ring 10 in installation or use process, i.e., not due to abrasion caused by sealing.
As shown in figure 4, bilateral sealing device provided by the invention, which is located in equipment, to be needed to be sealed in installation condition
First structure 40 and the second structure 50 between, it is preferable that the first structure 40 be axis, second structure 50 be shell.
First sealing 12 is connected in the first structure 40, and second sealing 13 is connected to second structure 50
On, and in installation condition, four springs 30 are in compressive state, and the spring 30 is capable of providing elastic force for institute
The first sealing 12 to be stated to be pressed in the first structure 40, second sealing 13 is pressed in second structure 50,
To play sealing function.Also, the setting of the spring 30, so that when first sealing 12 or the second sealing 13 are sent out
When raw abrasion abrasion influence caused by sealing effect can be made up by the pressure of institute's spring 30 in a certain range, made described
Bilateral sealing device uses the time can be longer.
Preferably, when fluid (gas or liquid) pressure in equipment is smaller, mainly by the pressure of the spring 30 offer
Tight first sealing 12 and the second sealing 13 are forced, when the Fluid pressure in equipment is larger, fluid is flowed into described
In first slot 111 and the second slot 112, so that it is close to first sealing 12 and second so that fluid is provided additional pressure
Envelope portion 13, to further increase the reliability of sealing.
Preferably, in the axial direction of the sealing ring 10, the lattice 22 of one or two support ring 20 is abutted to
In second structure 50, the bilateral sealing device is supported and is limited in the axial direction.Further, such as Fig. 5, Fig. 6
It is shown, in order to enable a fluid to enter first slot 111 and the second slot 112, in lattice 22 far from the clamping portion 21
Conductance slot 221 is opened up on end face, the radially inner side of the lattice 22 and radial outside are connected the conductance slot 221.It is preferred that
Ground, being arranged radially along the lattice 22 of conductance slot 221, and have along its circumferential branch it is multiple, it is preferably multiple described
The uniform branch of conductance slot 221.The setting of the conductance slot 221 allows fluid to flow to the two sides of the lattice 22, to protect
It is identical with the Fluid pressure in the second slot 112 to demonstrate,prove first slot 111, to guarantee sealing effect.Alternatively, as shown in fig. 7, also
Via hole 222 can be set on the lattice 22, and the via hole 222 leads first slot 111 and second slot 112
It is logical, it is preferable that the via hole 222 has multiple, multiple 222 uniform points of via holes along the circumferential branch of the lattice 22
Portion.The setting of the via hole 222 allows fluid to flow to the two sides of the lattice 22, to guarantee first slot 111
It is identical with the Fluid pressure in the second slot 112, to guarantee sealing effect.Alternatively, the conductance slot 221 can also be arranged simultaneously
With the via hole 222, make fluid is tender can more easily circulate between first slot 111 and the second slot 112.
In a specific embodiment, bilateral sealing device provided by the invention is set to the sealing of 6 inch diameters
Device, and it is mounted on progress sealing performance test in experiments of sealing performance tooling.Cold test has been carried out respectively, and test(ing) medium is
Nitrogen and low-temperature test, test(ing) medium are liquid nitrogen, and each sealing device has carried out five high/low temperature cyclic tests, as a result as follows:
From the above results, in normal temperature state, bilateral sealing device provided by the invention is 50-1500lbs in pressure
In the environment of two-way leakage be zero, at low ambient temperatures, as a certain amount of leakage occurs for increasing for pressure, but leakage rate
In the reasonable scope, shell (shell) standard can be reached, i.e., the bilateral sealing device has under room temperature, low temperature environment
There is good sealing effect.
The above description is merely a specific embodiment, but scope of protection of the present invention is not limited thereto, any
Those familiar with the art in the technical scope disclosed by the present invention, can easily think of the change or the replacement, and should all contain
Lid is within protection scope of the present invention.Therefore, protection scope of the present invention should be based on the protection scope of the described claims.
Claims (10)
1. a kind of bilateral sealing device, which is characterized in that described close including sealing ring (10), support ring (20) and spring (30)
It is provided in seal (10) holding tank (11), the holding tank (11) is configured to circumferentially being formed along the sealing ring (10)
Annular groove, there are two holding tank (11) settings, and two holding tanks (11) are respectively formed at the sealing ring (10) axis
Upward both ends, two holding tanks (11) openings towards on the contrary,
The section of the support ring (20) is inverted T-shaped structure, and there are two support ring (20) settings, two receivings
A support ring (20) is embedded in slot (11), the radially described support ring (20) of the sealing ring (10) will be described
Holding tank (11) is separated into the first slot (111) and the second slot (112), and first slot (111) and the second slot (112) are opened
It is in open state at mouthful,
The spring (30) is configured to garter spring (30), and there are four spring (30) settings, two holding tanks
(11) spring (30) is respectively embedded in first slot (111) and second slot (112).
2. bilateral sealing device according to claim 1, which is characterized in that the sealing ring (10) is compound poly- by carbon fiber
Vinylidene material is made.
3. bilateral sealing device according to claim 1, which is characterized in that the sealing ring (10) further includes positioned at described
First sealing (12) of sealing ring (10) radially inner side, and it is located at second sealing of the sealing ring (10) radial outside
(13), first sealing (12) and second sealing (13) constitute the side wall of the holding tank (11),
First sealing (12) and second sealing (13) are configured to radial to institute along the sealing ring (10)
State the thin-wall construction that arc protrusion is formed on the outside of holding tank (11).
4. bilateral sealing device according to claim 1, which is characterized in that the bottom wall of the holding tank (11) is formed and institute
The card slot (14) of support ring (20) clamping is stated, the card slot (14) is configured to the annular circumferentially formed along the sealing ring (10)
Slot.
5. bilateral sealing device according to claim 4, which is characterized in that the support ring (20) includes clamping portion (21)
With lattice (22), the clamping portion (21) and the lattice (22) are circular ring structure, the clamping portion (21) and described
It is the structure for being inverted T shape that lattice (22), which is arranged in a mutually vertical manner Formation cross-section,
The clamping portion (21) snaps fit onto the card slot (14),
The holding tank (11) is separated into first slot (111) and second slot (112) by the lattice (22).
6. bilateral sealing device according to claim 5, which is characterized in that lattice (22) the radially inner side wall and diameter
Outside side wall is configured to arc-shaped concave.
7. bilateral sealing device according to claim 5, which is characterized in that the lattice (22) is far from the clamping portion
(21) end reaches the outside of the holding tank (11).
8. bilateral sealing device according to claim 7, which is characterized in that the lattice (22) is far from the clamping portion
(21) it is formed on end face conductance slot (221), the conductance slot (221) is by the radially inner side and radial direction of the lattice (22)
Outside conducting.
9. according to the described in any item bilateral sealing devices of claim 5-8, which is characterized in that be arranged on the lattice (22)
Have via hole (222), first slot (111) and second slot (112) are connected the via hole (222).
10. bilateral sealing device according to claim 1-8, which is characterized in that the sealing ring (10) is one
Body structure.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910612983.7A CN110307336A (en) | 2019-07-09 | 2019-07-09 | Bilateral sealing device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910612983.7A CN110307336A (en) | 2019-07-09 | 2019-07-09 | Bilateral sealing device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN110307336A true CN110307336A (en) | 2019-10-08 |
Family
ID=68079452
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201910612983.7A Pending CN110307336A (en) | 2019-07-09 | 2019-07-09 | Bilateral sealing device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN110307336A (en) |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110985673A (en) * | 2019-12-16 | 2020-04-10 | 凯氟隆（厦门）密封件有限公司 | Novel energy storage sealing ring for asymmetric-section ultra-low temperature valve |
| CN113565979A (en) * | 2020-04-29 | 2021-10-29 | 百强阀门集团有限公司 | Ball valve seals and ball valves |
| CN115596390A (en) * | 2021-07-07 | 2023-01-13 | 中国石油天然气股份有限公司（Cn） | Sealing device |
| US11746906B1 (en) | 2022-11-01 | 2023-09-05 | Bal Seal Engineering, Llc | Lip seals and related methods |
| US11940049B1 (en) | 2022-11-01 | 2024-03-26 | Bal Seal Engineering, Llc | Lip seals and related methods |
| US12247663B2 (en) | 2022-11-01 | 2025-03-11 | Bal Seal Engineering, Llc | Lip seals and related methods |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110985673A (en) * | 2019-12-16 | 2020-04-10 | 凯氟隆（厦门）密封件有限公司 | Novel energy storage sealing ring for asymmetric-section ultra-low temperature valve |
| CN113565979A (en) * | 2020-04-29 | 2021-10-29 | 百强阀门集团有限公司 | Ball valve seals and ball valves |
| CN115596390A (en) * | 2021-07-07 | 2023-01-13 | 中国石油天然气股份有限公司（Cn） | Sealing device |
| US11746906B1 (en) | 2022-11-01 | 2023-09-05 | Bal Seal Engineering, Llc | Lip seals and related methods |
| US11940049B1 (en) | 2022-11-01 | 2024-03-26 | Bal Seal Engineering, Llc | Lip seals and related methods |
| US12247663B2 (en) | 2022-11-01 | 2025-03-11 | Bal Seal Engineering, Llc | Lip seals and related methods |
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Application publication date: 20191008 |
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