CN204420106U - A kind of bicircular arcs lip-type packing - Google Patents
A kind of bicircular arcs lip-type packing Download PDFInfo
- Publication number
- CN204420106U CN204420106U CN201520042401.3U CN201520042401U CN204420106U CN 204420106 U CN204420106 U CN 204420106U CN 201520042401 U CN201520042401 U CN 201520042401U CN 204420106 U CN204420106 U CN 204420106U
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- ring
- groove
- mounting groove
- bicircular arcs
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Abstract
The utility model discloses a kind of bicircular arcs lip-type packing, comprise chuck circle body, support circle body and compensating part, wherein, above-mentioned chuck circle body is ring structure, and the right side of this ring structure has bicircular arcs draw-in groove, and the inside portion of bicircular arcs draw-in groove is provided with caulking groove; Above-mentioned support circle body is ring structure, and the middle part of this ring structure is provided with spacer ring, and the left end of spacer ring is provided with capel, the middle part of spacer ring is provided with back-up ring, spacer ring is divided into four mounting grooves by back-up ring, supports circle body and inserts in the bicircular arcs draw-in groove of chuck circle body, so that spacing fixing; Above-mentioned compensating part comprises at least four, and compensating part is separately positioned in above-mentioned mounting groove.The utility model provides a kind of sealing effect of excellence, applies for ultralow temperature high-pressure large-caliber series ball valve; Sealing effect is excellent, and adopt face property sealing configuration, impacting with high pressure can not be turned on one's side, and the utility model structure lip is long, and leading portion lip easily compresses, and is convenient to install.
Description
Technical field
The utility model relates to the seal arrangement of machinery, oil and chemical field, refers in particular to a kind of bicircular arcs lip-type packing.
Background technique
Seal ring is widely used in all trades and professions as a kind of conventional machinery part, mainly plays the effect preventing liquid, Leakage Gas.LNG is exactly the abbreviation of LNG Liquefied natural gas, and main component is methane.LNG is by the rock gas of gaseous state under normal pressure being cooled to-162C, making it to condense into liquid.Storage and transportation space and cost can be greatly saved after natural gas liquefaction.LNG has the features such as calorific value is large, performance is high, environmental protection.This medium is not only inflammable and explosive, and can gasify when heating up, and volumetric expansion hundreds of times, pressure sharply raises.And this medium osmosis power is strong, easily reveals, processing and fabricating is more difficult with sealing.Along with international energy market continuing to increase LNG Liquefied natural gas exploitation dynamics, the low temperature industries such as domestic LNG Liquefied natural gas LNG are also developing rapidly, to Subzero valve demand also in continuous growth.The Sealing market of Cryogenic valve also becomes more wide.
The existing encapsulation scheme of industry all adopts single circular arc sealing surface to seal.Because decrement is large, lip is short, easily damages Sealing in installation process, shine into seal failure.Practical set difficulty; Because single circular arc sealing contact surface is little in ultralow temperature high-pressure large-caliber operating mode, easily there is rollover in compression shock lower seal or tilt and leak; Due to structural imperfection in ultralow temperature high pressure operating mode, sealing effect is bad, easily leaks.Valve company is in ultralow temperature (-110 ° of C) following heavy caliber (more than 6 inches) high pound level (900 pounds) field both at home and abroad at present, and current industry encapsulation scheme all can not solve leakage, is in research and development state.Current industry does not have the practical application of ultralow temperature large caliber high pound level ball valve.
Model utility content
The technical problems to be solved in the utility model is for above-mentioned the deficiencies in the prior art, provides a kind of bicircular arcs lip-type packing.
The technological scheme that the utility model is taked is as follows: a kind of bicircular arcs lip-type packing, comprise chuck circle body, support circle body and compensating part, wherein, above-mentioned chuck circle body is ring structure, the right side of this ring structure has bicircular arcs draw-in groove, and the inside portion of bicircular arcs draw-in groove is provided with caulking groove; Above-mentioned support circle body is ring structure, and the middle part of this ring structure is provided with spacer ring, and the left end of spacer ring is provided with capel, the middle part of spacer ring is provided with back-up ring, spacer ring is divided into four mounting grooves by back-up ring, supports circle body and inserts in the bicircular arcs draw-in groove of chuck circle body, so that spacing fixing; Above-mentioned compensating part comprises at least four, and compensating part is separately positioned in above-mentioned mounting groove.
Preferably, described chuck collar comprises jacket body and collar body, and wherein collar body is connected to the right side of jacket body, and above-mentioned bicircular arcs draw-in groove is opened in the right-hand member of collar body, and caves in the left; Above-mentioned caulking groove is arranged on the left side central portion of bicircular arcs draw-in groove, and extends to the left in jacket body.
Preferably, described bicircular arcs draw-in groove comprises two circular grooves arranged according to this from outside to inside, and roof and the diapire of two circular grooves are globoidal structure, and the cambered surface of roof upwards caves in, the cambered surface of diapire to lower recess, to form supporting surface.
Preferably, described support circle body comprises support, spacer ring, baffle ring and capel, and wherein, above-mentioned spacer ring is arranged on the left side of support, and extends to form the support anchor ring of annular to the left; Above-mentioned baffle ring is arranged on the middle part of spacer ring, and extends to the both sides up and down of spacer ring; Above-mentioned capel is arranged on the left-hand end of spacer ring, and support circle body and embed from right to left in bicircular arcs draw-in groove, capel is embedded in caulking groove, so that spacing fixing.
Preferably, described mounting groove is separated to form by the extension of both sides up and down of baffle ring to spacer ring, and mounting groove comprises the first mounting groove, the second mounting groove, the 3rd mounting groove and the 4th mounting groove.
Preferably, the first described mounting groove and the second mounting groove are arranged on the top of spacer ring from right to left according to this, and above-mentioned 3rd mounting groove and the 4th mounting groove are arranged on the bottom of spacer ring from right to left according to this.
Preferably, described compensating part comprises four, and four compensating parts are separately positioned in above-mentioned first mounting groove, the second mounting groove, the 3rd mounting groove and the 4th mounting groove.
The beneficial effects of the utility model are:
The utility model devises a kind of chuck circle body comprising internal-and external diameter bicircular arcs lip, the metallic support circle body of internal-and external diameter dual torus groove and four groups of metallic elastic compensating elements.By the utility model, a kind of sealing effect of excellence can be provided, apply for ultralow temperature high-pressure large-caliber series ball valve.The utility model sealing structure excellent effect, the utility model adopts face property sealing configuration, and impacting with high pressure can not be turned on one's side, and sealing effect is excellent, and the utility model structure lip is long, and leading portion lip easily compresses, and is convenient to install.
Accompanying drawing explanation
Fig. 1 is sectional view of the present utility model.
Fig. 2 is the structural representation of chuck circle body in Fig. 1.
Fig. 3 is the structural representation supporting circle body in Fig. 1.
Fig. 4 is the cross section structure schematic diagram supporting circle body in Fig. 1.
Fig. 5 is the structural representation of compensating part in Fig. 1.
Fig. 6 is the force analysis figure of existing seal ring.
Fig. 7 is force analysis figure of the present utility model.
Fig. 8 is assembly structure schematic diagram of the present utility model.
Embodiment
Below in conjunction with accompanying drawing, the utility model is further described:
As shown in Figures 1 to 5, the technological scheme that the utility model is taked is as follows: a kind of bicircular arcs lip-type packing, comprise chuck circle body 1, support circle body 2 and compensating part 3, wherein, above-mentioned chuck circle body 1 is ring structure, the right side of this ring structure has bicircular arcs draw-in groove A, and the inside portion of bicircular arcs draw-in groove A is provided with caulking groove B; Above-mentioned support circle body 3 is ring structure, the middle part of this ring structure is provided with spacer ring 32, the left end of spacer ring 32 is provided with capel 34, the middle part of spacer ring 32 is provided with back-up ring 33, spacer ring 32 is divided into four mounting grooves by back-up ring 33, support circle body 3 to insert in the bicircular arcs draw-in groove A of chuck circle body 1, so that spacing fixing; Above-mentioned compensating part 2 comprises at least four, and compensating part 2 is separately positioned in above-mentioned mounting groove.
Chuck collar 1 comprises jacket body 11 and collar body 12, and wherein collar body 12 is connected to the right side of jacket body 11, and above-mentioned bicircular arcs draw-in groove A is opened in the right-hand member of collar body 12, and caves in the left; Above-mentioned caulking groove B is arranged on the left side central portion of bicircular arcs draw-in groove A, and extends to the left in jacket body 11.
Bicircular arcs draw-in groove A comprises two circular grooves arranged according to this from outside to inside, and roof and the diapire of two circular grooves are globoidal structure, and the cambered surface of roof upwards caves in, the cambered surface of diapire to lower recess, to form supporting surface.
Support circle body 3 and comprise support 31, spacer ring 32, baffle ring 33 and capel 34, wherein, above-mentioned spacer ring 32 is arranged on the left side of support 31, and extends to form the support anchor ring of annular to the left; Above-mentioned baffle ring 33 is arranged on the middle part of spacer ring 32, and extends to the both sides up and down of spacer ring 32; Above-mentioned capel 34 is arranged on the left-hand end of spacer ring 32, and support circle body 3 and embed in bicircular arcs draw-in groove A from right to left, capel 34 is embedded in caulking groove B, so that spacing fixing.
Mounting groove is separated to form by the extension of both sides up and down of baffle ring 33 to spacer ring 32, and mounting groove comprises the first mounting groove C, the second mounting groove D, the 3rd mounting groove E and the 4th mounting groove F.
First mounting groove C and the second mounting groove D is arranged on the top of spacer ring 32 from right to left according to this, and above-mentioned 3rd mounting groove E and the 4th mounting groove F is arranged on the bottom of spacer ring 32 from right to left according to this.
Compensating part 2 comprises four, and four compensating parts 2 are separately positioned in above-mentioned first mounting groove C, the second mounting groove D, the 3rd mounting groove E and the 4th mounting groove F.
Further, bicircular arcs lip-type packing chuck circle body of the present utility model is made up of modified ptfe material; Bicircular arcs lip-type packing chuck circle body is designed with internal-and external diameter bicircular arcs sealing surface; Bicircular arcs lip-type packing chuck circle body inner chamber is designed with groove, for compressing clamping metallic support circle, prevents it to be shifted in high pressure; The metallic support circle of bicircular arcs lip-type packing is made up of 316L stainless steel; The metallic support circle of bicircular arcs lip-type packing is designed with the little shaft shoulder for coordinating chuck circle body, prevents displacement; The metallic support circle of bicircular arcs lip-type packing is designed with the large shaft shoulder for the protection of chuck lip, prevents impacting with high pressure from damaging seal ring; The elastic compensation element of bicircular arcs lip-type packing is welded as annulus and shaping by head and the tail after the coiling of bandlet shape metal spiral; The elastic compensation element of bicircular arcs lip-type packing is processed into by Elgiloy alloy material or Inconel alloy material helically coiling, the refilling member of varying number can be adopted to coordinate composition according to actual service condition in four mounting grooves, can be mutually sheathed between refilling member, to increase crushing resistance.
Further, as shown in Figure 6, general seal ring force analysis figure, in system pressure state, system pressure B1 is greater than system pressure A1, and system pressure A2 is equal with anti-surrender internal stress B2.Cause macromolecule lip to be close to valve body and valve seat metal covering by the metal coil spring pressure acting on K1 point, system media is sealed.The first, when pressure raises, when B1 is greater than A1+ metal spring pressure, sealing circle leaks.The second, because this structure is linear sealing, when impacting with high pressure, seal ring is easily turned on one's side, and shines into leakage.Three, this structure due to decrement large, lip is short, installs difficulty and easily damages seal ring.
Further, as shown in Figure 7, force analysis figure of the present utility model, in system pressure state, system pressure C1 is greater than system pressure D1, and C2 pressure is close to 0, and system pressure D2 is very large, and system pressure D3 is equal with anti-surrender internal stress C3.Cause macromolecule lip to be close to valve body and valve seat metal covering by the metal coil spring pressure acting on F1, F2 point, system media is sealed (sealing effect is also relevant with surface roughness with the surface hardness of valve body and valve seat).When the first, only having pressure enough high, C1 is just likely greater than D1+D2+ tetra-groups of metal coil spring pressure.This patent sealing structure excellent effect.The second, because this patent structure is the sealing of face property, impacting with high pressure can not be turned on one's side, and sealing effect is excellent.Three, this patent structure lip is long, and leading portion lip easily compresses, and is convenient to install.
Embodiment of the present utility model just introduces its embodiment, does not lie in and limits its protection domain.The technician of the industry can make some amendment under the inspiration of the present embodiment, therefore all equivalences done according to the utility model the scope of the claims change or modify, and all belong within the scope of the utility model Patent right requirement.
Claims (7)
1. a bicircular arcs lip-type packing, it is characterized in that: comprise chuck circle body (1), support circle body (2) and compensating part (3), wherein, above-mentioned chuck circle body (1) is ring structure, the right side of this ring structure has bicircular arcs draw-in groove (A), and the inside portion of bicircular arcs draw-in groove (A) is provided with caulking groove (B); Above-mentioned support circle body (3) is ring structure, the middle part of this ring structure is provided with spacer ring (32), the left end of spacer ring (32) is provided with capel (34), the middle part of spacer ring (32) is provided with back-up ring (33), spacer ring (32) is divided into four mounting grooves by back-up ring (33), support circle body (3) to insert in the bicircular arcs draw-in groove (A) of chuck circle body (1), so that spacing fixing; Above-mentioned compensating part (2) comprises at least four, and compensating part (2) is separately positioned in above-mentioned mounting groove.
2. a kind of bicircular arcs lip-type packing according to claim 1, it is characterized in that: described chuck collar (1) comprises jacket body (11) and collar body (12), wherein collar body (12) is connected to the right side of jacket body (11), above-mentioned bicircular arcs draw-in groove (A) is opened in the right-hand member of collar body (12), and caves in the left; Above-mentioned caulking groove (B) is arranged on the left side central portion of bicircular arcs draw-in groove (A), and extends to the left in jacket body (11).
3. a kind of bicircular arcs lip-type packing according to claim 2, it is characterized in that: described bicircular arcs draw-in groove (A) comprises two circular grooves arranged according to this from outside to inside, roof and the diapire of two circular grooves are globoidal structure, the cambered surface of roof upwards caves in, the cambered surface of diapire to lower recess, to form supporting surface.
4. a kind of bicircular arcs lip-type packing according to claim 3, it is characterized in that: described support circle body (3) comprises support (31), spacer ring (32), baffle ring (33) and capel (34), wherein, above-mentioned spacer ring (32) is arranged on the left side of support (31), and extends to form the support anchor ring of annular to the left; Above-mentioned baffle ring (33) is arranged on the middle part of spacer ring (32), and extends to the both sides up and down of spacer ring (32); Above-mentioned capel (34) is arranged on the left-hand end of spacer ring (32), and support circle body (3) and embed from right to left in bicircular arcs draw-in groove (A), capel (34) is embedded in caulking groove (B), so that spacing fixing.
5. a kind of bicircular arcs lip-type packing according to claim 4, it is characterized in that: described mounting groove is separated to form by the extension of both sides up and down of baffle ring (33) to spacer ring (32), and mounting groove comprises the first mounting groove (C), the second mounting groove (D), the 3rd mounting groove (E) and the 4th mounting groove (F).
6. a kind of bicircular arcs lip-type packing according to claim 5, it is characterized in that: described the first mounting groove (C) and the second mounting groove (D) are arranged on the top of spacer ring (32) from right to left according to this, above-mentioned 3rd mounting groove (E) and the 4th mounting groove (F) are arranged on the bottom of spacer ring (32) from right to left according to this.
7. a kind of bicircular arcs lip-type packing according to claim 6, it is characterized in that: described compensating part (2) comprises four, four compensating parts (2) are separately positioned in above-mentioned first mounting groove (C), the second mounting groove (D), the 3rd mounting groove (E) and the 4th mounting groove (F).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520042401.3U CN204420106U (en) | 2015-01-22 | 2015-01-22 | A kind of bicircular arcs lip-type packing |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520042401.3U CN204420106U (en) | 2015-01-22 | 2015-01-22 | A kind of bicircular arcs lip-type packing |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204420106U true CN204420106U (en) | 2015-06-24 |
Family
ID=53470477
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201520042401.3U Expired - Fee Related CN204420106U (en) | 2015-01-22 | 2015-01-22 | A kind of bicircular arcs lip-type packing |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN204420106U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106644693A (en) * | 2016-12-16 | 2017-05-10 | 中国科学院地质与地球物理研究所 | Elastic energy-storage sealing device for high-temperature and high-pressure rock triaxial cell |
| WO2023076886A1 (en) * | 2021-10-27 | 2023-05-04 | Saint-Gobain Performance Plastics Corporation | Seal with insert and methods of making and using the same |
-
2015
- 2015-01-22 CN CN201520042401.3U patent/CN204420106U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106644693A (en) * | 2016-12-16 | 2017-05-10 | 中国科学院地质与地球物理研究所 | Elastic energy-storage sealing device for high-temperature and high-pressure rock triaxial cell |
| WO2023076886A1 (en) * | 2021-10-27 | 2023-05-04 | Saint-Gobain Performance Plastics Corporation | Seal with insert and methods of making and using the same |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20150624 Termination date: 20160122 |
|
| EXPY | Termination of patent right or utility model |