CN206943427U - A kind of dissection type ripple spring carbon ring seal - Google Patents
A kind of dissection type ripple spring carbon ring seal Download PDFInfo
- Publication number
- CN206943427U CN206943427U CN201720839538.0U CN201720839538U CN206943427U CN 206943427 U CN206943427 U CN 206943427U CN 201720839538 U CN201720839538 U CN 201720839538U CN 206943427 U CN206943427 U CN 206943427U
- Authority
- CN
- China
- Prior art keywords
- carbon ring
- semi
- wave spring
- spring
- seal
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Active
Links
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical group [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 title claims abstract description 106
- 238000002224 dissection Methods 0.000 title abstract 3
- 238000007789 sealing Methods 0.000 claims abstract description 29
- 125000006850 spacer group Chemical group 0.000 claims description 9
- 230000000712 assembly Effects 0.000 claims description 2
- 238000000429 assembly Methods 0.000 claims description 2
- 230000004888 barrier function Effects 0.000 claims description 2
- 238000009434 installation Methods 0.000 abstract description 7
- 125000002837 carbocyclic group Chemical group 0.000 abstract 10
- 238000005516 engineering process Methods 0.000 abstract 1
- 241000446313 Lamella Species 0.000 description 11
- 238000000034 method Methods 0.000 description 2
- 230000008569 process Effects 0.000 description 2
- 238000000926 separation method Methods 0.000 description 2
- 238000009165 androgen replacement therapy Methods 0.000 description 1
- 230000000903 blocking effect Effects 0.000 description 1
- 229910052799 carbon Inorganic materials 0.000 description 1
- 238000001816 cooling Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 229910002804 graphite Inorganic materials 0.000 description 1
- 239000010439 graphite Substances 0.000 description 1
- 238000011900 installation process Methods 0.000 description 1
- 238000005461 lubrication Methods 0.000 description 1
- 238000012423 maintenance Methods 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000003825 pressing Methods 0.000 description 1
- 230000009467 reduction Effects 0.000 description 1
- 230000008439 repair process Effects 0.000 description 1
Landscapes
- Sealing Devices (AREA)
Abstract
A kind of dissection type ripple spring carbon ring seal, belongs to technical field of sealing technology.The dissection type ripple spring carbon ring seal includes：Seal cavity assembly, multiple ripple springs, multiple carbocyclic ring components and axle sleeve；Multiple carbocyclic ring component mounting grooves are provided with seal cavity assembly, one carbocyclic ring component of installation in each carbocyclic ring component mounting groove, the side wall of each carbocyclic ring component mounting groove connects a ripple spring mounting groove, a ripple spring is respectively mounted in each ripple spring mounting groove, the crest of ripple spring compresses carbocyclic ring component, axle sleeve is located in the endoporus of multiple carbocyclic ring components, and axle sleeve is enclosed on outside machine spindle.Ripple spring can give carbocyclic ring component to apply certain sideways thrust, carbocyclic ring component is close to the side wall of carbocyclic ring component mounting groove, ensure that sealing；Because ripple spring is split-type ripple spring, two valve ripple spring sections are divided valve to be pre-installed in seal cavity by can before seal cavity attaches together, and are not in the phenomenon that can not be positioned and come off in seal cavity before attaching together such as cylindrical spring.
Description
Technical Field
The utility model relates to a sealed technical field, in particular to subdivision formula ripples spring carbocycle is sealed.
Background
The carbon ring seal is widely applied to shaft seals of steam turbines, ventilators, blowers, compressors, centrifuges, TRTs, gas pressurizing stations and the like because of convenient installation, good tightness, simple maintenance and repair and no need of complex external systems of lubrication, cooling and the like. The carbon ring seal belongs to one of floating seals and is named because the material is carbon graphite. The carbon ring seal is a floating ring seal gas throttling non-contact seal. The sealing principle is that a gas film is formed between the floating ring and the shaft sleeve by means of sealing gas, throttling and pressure reduction are generated, and gas on a high-pressure side is prevented from flowing to a low-pressure side. The sealing function must be realized by ensuring that no leakage point exists between the carbon ring and other adjacent parts except for the gap between the carbon ring and the shaft sleeve. Because the carbocycle is installed in the casing and can fluctuate, during operation, the carbocycle leans on the pressure that comes from equipment inside to promote the carbocycle, makes the side of carbocycle hug closely on the cell sidewall of casing installation carbocycle, guarantees that sealed gas can not bypass the carbocycle and the inter-axial bore gap of axle sleeve, flows to the equipment outside through the cell sidewall along the carbocycle excircle and causes sealed inefficacy. This must be achieved by the medium in the device exerting a force on the side of the carbon ring sufficient to press the carbon ring against the side wall of the groove in which the carbon ring is mounted, thereby ensuring the tightness of this side. However, in low-pressure systems, the low pressure of the medium to be fed often does not provide sufficient lateral sealing force, and in particular, the residual pressure is lower when the medium flows to the carbon ring close to the outside of the system, which results in an increased leakage of the seal. Because the split structure in the middle is sealed with the carbocycle for well open equipment, for install sealed lower cavity and carbon ring subassembly to equipment earlier during seal installation, then install sealed upper cover, ordinary spring can't fix a position in sealed upper cover.
SUMMERY OF THE UTILITY MODEL
In order to solve the problem that prior art exists, the utility model provides a subdivision formula ripples spring carbocycle is sealed, subdivision formula ripples spring carbocycle is sealed to include: the device comprises a sealed cavity assembly, a plurality of wave springs, a plurality of carbon ring assemblies and a shaft sleeve;
the sealing cavity assembly is internally provided with a plurality of carbon ring component mounting grooves, a carbon ring component is mounted in each carbon ring component mounting groove, the side wall of each carbon ring component mounting groove is communicated with a wave spring mounting groove, a wave spring is mounted in each wave spring mounting groove, the wave crest of the wave spring is abutted against the carbon ring component, the shaft sleeve is positioned in the inner holes of the carbon ring components, and the shaft sleeve is sleeved outside the main shaft of the equipment.
Each carbon ring assembly comprises a carbon ring, a positioning piece and a tension spring;
the carbocycle cover is in outside the axle sleeve, be equipped with the carbocycle draw-in groove on the carbocycle, the one end card of spacer is in the carbocycle draw-in groove, and the other end card is in the seal chamber assembly, the extension spring cover is in the excircle of carbocycle, the crest of ripples spring supports presses the carbocycle side.
The seal cavity assembly comprises a first seal shell, a second seal shell, a positioning pin and a bolt, wherein the first seal shell and the second seal shell are connected through the bolt and are positioned through the positioning pin;
a plurality of first semi-annular grooves are formed in the first sealing shell, a plurality of second semi-annular grooves are formed in the second sealing shell, each first semi-annular groove corresponds to one second semi-annular groove, and each first semi-annular groove and the corresponding second semi-annular groove form one carbon ring assembly mounting groove;
the side wall of each first semi-annular groove is communicated with a third semi-annular groove, the side wall of each second semi-annular groove is communicated with a fourth semi-annular groove, and each third semi-annular groove and the corresponding fourth semi-annular groove form the wave spring mounting groove;
each second semi-annular groove is communicated with a positioning sheet clamping groove, and the other end of each positioning sheet is clamped in the corresponding positioning sheet clamping groove.
The wave spring is of a split type and comprises two wave spring sections, namely a first wave spring section and a second wave spring section, when the two wave spring sections are spliced together, a limiting notch is reserved, and the limiting notch clamps the positioning sheet.
The carbocycle is the split formula, including three lamella carbon ring sections, when three lamella carbocycle sections splice together, forms annular carbocycle of circle, is equipped with on one of them lamella carbocycle section the carbocycle draw-in groove, the extension spring cover is in the excircle of three carbon ring sections.
The edge of the side face, close to the wave spring mounting groove, of the carbon ring is provided with a slope.
And a separation barrier is arranged at the top of the third semi-annular groove and at the position corresponding to the wave trough of the wave spring.
The utility model discloses in, certain side thrust can be applyed for the carbon ring subassembly to the ripples spring, makes the carbon ring subassembly hug closely at the lateral wall of carbon ring subassembly mounting groove, prevents that the lateral wall flow direction equipment outside that the sealing gas passes through carbon ring subassembly and carbon ring subassembly mounting groove from causing sealed inefficacy. In low-pressure equipment, even if the pressure of a conveying medium is low, the carbon ring assembly is still attached to the side wall of the carbon ring assembly mounting groove due to the existence of the wave spring, and the sealing performance is guaranteed; because the wave spring is the split type wave spring, just can adorn two lamella wave spring section split in first seal housing and second seal housing in advance before first seal housing and second seal housing attach together, can not appear like cylindrical spring can't fix a position and the phenomenon that drops in seal chamber before attaching together.
Drawings
Fig. 1 is a front view of a split carbon ring seal provided by the present invention;
fig. 2 is a sectional view a-a of the split carbon ring seal provided by the present invention;
fig. 3 is a front view of a carbon ring assembly provided by the present invention;
fig. 4 is a B-B cross-sectional view of a carbon ring assembly provided by the present invention;
fig. 5 is a front view of the wave spring provided by the present invention;
fig. 6 is a side view of a wave spring provided by the present invention;
fig. 7 is a schematic diagram of the wave spring mounting groove enlarged from the K direction.
Wherein,
1 seal chamber body assembly, 2 ripples springs, 3 carbon ring subassemblies, 4 axle sleeves, 5 carbocycles, 6 spacer, 7 extension springs, 8 carbocycle draw-in grooves, 9 first seal housing, 10 second seal housing, 11 locating pins, 12 bolts, 13 first half ring channels, 14 second half ring channels, 15 third half ring channels, 16 fourth half ring channels, 17 spacer draw-in grooves, 18 first lamella ripples spring section, 19 second lamella ripples spring section, 20 spacing incision, 21 separates shelves, 22 slopes, 23 equipment main shafts, 24 carbocycle sections, the crest of A ripples spring, the trough of B ripples spring.
Detailed Description
In order to solve the problem that prior art exists, as shown in fig. 1 to 7, the utility model provides a subdivision formula ripples spring carbocycle is sealed, this subdivision formula ripples spring carbocycle is sealed include: the device comprises a sealed cavity assembly 1, a plurality of wave springs 2, a plurality of carbon ring components 3 and a shaft sleeve 4;
be equipped with a plurality of carbon ring component mounting grooves in the seal chamber assembly 1, install a carbon ring subassembly 3 in every carbon ring component mounting groove, the lateral wall of every carbon ring component mounting groove all communicates a ripples spring mounting groove, all installs a ripples spring 2 in every ripples spring mounting groove, and the crest A of ripples spring 2 supports the pressure carbon ring subassembly 3, and axle sleeve 4 is located the interior downthehole of a plurality of carbon ring subassemblies 3, and axle sleeve 4 cover is outside equipment main shaft 23.
The utility model discloses in, through all feeding through a ripples spring mounting groove on the lateral wall at every carbon ring subassembly mounting groove, ripples spring 2 of installation in the ripples spring mounting groove, and make a plurality of crests of ripples spring 2 support and press carbon ring subassembly 3, applys certain side thrust for carbon ring subassembly 3, makes carbon ring subassembly 3 hug closely at the lateral wall of carbon ring subassembly mounting groove, prevents that the lateral wall flow direction equipment outside that sealing gas passes through carbon ring subassembly 3 and carbon ring subassembly mounting groove from causing sealed inefficacy. In low-pressure equipment, even if the pressure of a conveying medium is low and is not enough to push the carbon ring assembly 3 to be tightly attached to the side wall of the carbon ring assembly mounting groove, the carbon ring assembly 3 still can be tightly attached to the side wall of the carbon ring assembly mounting groove due to the existence of the wave spring 2, and the sealing performance is guaranteed.
In the utility model, each carbon ring component 3 comprises a carbon ring 5, a positioning piece 6 and a tension spring 7;
carbocycle 5 covers outside axle sleeve 4, is equipped with carbocycle draw-in groove 8 on the carbocycle 5, and the one end card of spacer 6 is in carbocycle draw-in groove 8, and the other end card is in the seal chamber assembly, and extension spring 7 covers the excircle at carbocycle 5, and the crest A of ripples spring 2 supports 5 sides of carbocycle of pressing carbon ring subassembly 3.
The seal cavity assembly 1 comprises a first seal shell 9, a second seal shell 10, a positioning pin 11 and a bolt 12, wherein the first seal shell 9 and the second seal shell 10 are connected through the bolt 12 and are positioned through the positioning pin 11;
a plurality of first semi-annular grooves 13 are formed in the first sealing shell 9, a plurality of second semi-annular grooves 14 are formed in the second sealing shell 10, each first semi-annular groove 13 corresponds to one second semi-annular groove 14, and each first semi-annular groove 13 and the corresponding second semi-annular groove 14 form a carbon ring assembly mounting groove;
the side wall of each first semi-annular groove 13 is communicated with a third semi-annular groove 15, the side wall of each second semi-annular groove 14 is communicated with a fourth semi-annular groove 16, and each third semi-annular groove 15 and the corresponding fourth semi-annular groove 16 form a wave spring mounting groove;
each second semi-annular groove 14 is also communicated with a positioning sheet clamping groove 17, and the other end of the positioning sheet 6 is clamped in the positioning sheet clamping groove 17.
When the equipment during operation, axle sleeve 4 can rotate, and spacer 6 can prevent that carbocycle 5 from receiving the influence of axle sleeve 4 frictional force and rotating along with axle sleeve 4.
The utility model discloses in, for the installation of convenience, with ripples spring 2 design for split type, including two lamella ripples spring sections, be first lamella ripples spring section 18 and second lamella ripples spring section 19 respectively, when two lamella ripples spring sections splice together, leave a spacing incision 20, spacing incision 20 blocks spacer 6, spacer 6 can also play spacing left and right sides to ripples spring 2 when preventing 5 rotations of carbocycle.
In order to facilitate the installation process, the carbon ring 5 is also designed to be a split type and comprises three carbon ring segments 24, when the three carbon ring segments 24 are spliced together, the annular carbon ring 5 is formed, the carbon ring clamping groove 8 is designed on one carbon ring segment, the tension spring 7 is sleeved on the excircle of the three carbon ring segments 24, and the carbon ring segment provided with the carbon ring clamping groove 8 is installed in the second semi-annular groove 14 of the second sealing shell 10.
When the sealing of the utility model is installed, the second sealing shell 10 is installed on the device, one of the wave spring sections is installed in the fourth semi-annular groove 16 of the second sealing shell 10, the tension spring 7 is installed in the second semi-annular groove 14, the carbon ring section provided with the carbon ring clamping groove 8 slides into the second semi-annular groove 14, one end of the positioning sheet 6 is clamped in the carbon ring clamping groove 8, the other end is clamped in the positioning sheet clamping groove 17 of the second sealing shell 10, other carbon ring sections are installed on the excircle of the shaft sleeve 4, the carbon ring sections are spliced into the annular carbon ring 5 sleeved outside the shaft sleeve 4, the tension spring 7 is hooped on the excircle of the carbon ring 5, the other wave spring section is installed in the third semi-annular groove 15 of the first sealing shell 9, the first sealing shell 9 is buckled on the second sealing shell 10, and the limit notch 20 formed by the two wave spring sections is also clamped on the positioning sheet 6, after 11 location through the locating pin, use bolt 12 to couple together first seal housing 9 and second seal housing 10, accomplish this sealed installation, because wave spring 2 is the split type, just can with two lamella wave spring section split preinstallation in first seal housing 9 and second seal housing 10 before first seal housing 9 and second seal housing 10 attach together, can not appear like cylindrical spring can't fix a position and the phenomenon that drops in seal chamber before attaching together.
In the utility model, in order to prevent the wave spring section from falling off from the first sealing shell 9 in the process of buckling the first sealing shell 9 on the second sealing shell 10, a separation rail 21 is arranged at the top of the third semi-annular groove 15 and at the position corresponding to the wave trough B of the wave spring 2; preferably, the edge of the carbon ring 5 close to the side of the wave spring mounting groove is provided with a slope 22, so that when the first seal housing 9 is buckled on the second seal housing 10, the wave spring section in the third semi-annular groove 15 is prevented from blocking the carbon ring section in the first semi-annular groove 13, and the mounting process can be more convenient.
The above description is only for the preferred embodiment of the present invention, and is not intended to limit the present invention, and any modifications, equivalent replacements, improvements, etc. made within the spirit and principle of the present invention should be included within the protection scope of the present invention.
Claims (7)
1. A split wave spring carbon ring seal, comprising: the device comprises a sealed cavity assembly, a plurality of wave springs, a plurality of carbon ring assemblies and a shaft sleeve;
the sealing cavity assembly is internally provided with a plurality of carbon ring component mounting grooves, a carbon ring component is mounted in each carbon ring component mounting groove, the side wall of each carbon ring component mounting groove is communicated with a wave spring mounting groove, a wave spring is mounted in each wave spring mounting groove, the wave crest of the wave spring is abutted against the carbon ring component, the shaft sleeve is positioned in the inner holes of the carbon ring components, and the shaft sleeve is sleeved outside the main shaft of the equipment.
2. The split wave spring carbon ring seal of claim 1, wherein each carbon ring assembly comprises a carbon ring, a spacer and a tension spring;
the carbocycle cover is in outside the axle sleeve, be equipped with the carbocycle draw-in groove on the carbocycle, the one end card of spacer is in the carbocycle draw-in groove, and the other end card is in the seal chamber assembly, the extension spring cover is in the excircle of carbocycle, the crest of ripples spring supports presses the carbocycle side.
3. The split wave spring carbon ring seal according to claim 2, wherein the seal cavity assembly comprises a first seal housing, a second seal housing, a positioning pin and a bolt, the first seal housing and the second seal housing are connected by the bolt and are positioned by the positioning pin;
a plurality of first semi-annular grooves are formed in the first sealing shell, a plurality of second semi-annular grooves are formed in the second sealing shell, each first semi-annular groove corresponds to one second semi-annular groove, and each first semi-annular groove and the corresponding second semi-annular groove form one carbon ring assembly mounting groove;
the side wall of each first semi-annular groove is communicated with a third semi-annular groove, the side wall of each second semi-annular groove is communicated with a fourth semi-annular groove, and each third semi-annular groove and the corresponding fourth semi-annular groove form the wave spring mounting groove;
each second semi-annular groove is communicated with a positioning sheet clamping groove, and the other end of each positioning sheet is clamped in the corresponding positioning sheet clamping groove.
4. The split wave spring carbon ring seal according to claim 3, wherein the wave spring is split and comprises two wave spring segments, namely a first wave spring segment and a second wave spring segment, and when the two wave spring segments are spliced together, a limit notch is reserved and the limit notch clamps the positioning piece.
5. The split wave spring carbon ring seal according to claim 3, wherein the carbon ring is split and comprises three carbon ring segments, the three carbon ring segments form a circular carbon ring when being spliced together, the carbon ring clamping groove is arranged on one carbon ring segment, and the tension spring is sleeved on the excircle of the three carbon ring segments.
6. The split wave spring carbon ring seal of claim 2, wherein the edge of the carbon ring proximate to the side of the wave spring mounting groove is sloped.
7. The split wave spring carbon ring seal of claim 3, wherein a barrier is provided at the top of the third semi-annular groove corresponding to the wave spring trough.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720839538.0U CN206943427U (en) | 2017-07-12 | 2017-07-12 | A kind of dissection type ripple spring carbon ring seal |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720839538.0U CN206943427U (en) | 2017-07-12 | 2017-07-12 | A kind of dissection type ripple spring carbon ring seal |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN206943427U true CN206943427U (en) | 2018-01-30 |
Family
ID=61369099
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201720839538.0U Active CN206943427U (en) | 2017-07-12 | 2017-07-12 | A kind of dissection type ripple spring carbon ring seal |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN206943427U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110925427A (en) * | 2019-12-23 | 2020-03-27 | 东方电气集团东方汽轮机有限公司 | Turbine shoulder blade non-locating surface auxiliary sealing structure and turbine shoulder blade |
-
2017
- 2017-07-12 CN CN201720839538.0U patent/CN206943427U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110925427A (en) * | 2019-12-23 | 2020-03-27 | 东方电气集团东方汽轮机有限公司 | Turbine shoulder blade non-locating surface auxiliary sealing structure and turbine shoulder blade |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN101910691B (en) | Split mechanical seal | |
| CN102844595A (en) | Split seal assembly and method | |
| ITMI20100684A1 (en) | STACKED ROTOR WITH TIE AND BOLTED FLANGE AND METHOD | |
| CN213065001U (en) | Non-contact rotary joint | |
| US20090202345A1 (en) | Casing and fluid machine | |
| CN206943427U (en) | A kind of dissection type ripple spring carbon ring seal | |
| CN103291380A (en) | Seal assembly for a turbomachine | |
| CN103307284A (en) | Split type mechanical seal with self-tightening sealing capacity | |
| CN108386629B (en) | Method for secondary sealing of pipeline connector | |
| CN109323003A (en) | A kind of complete section fraction dynamic sealing device | |
| CN203224177U (en) | Sleeve sealing structure for cabin segment | |
| CN202612930U (en) | A joint assembly and a pneumatic pipeline system having the same | |
| CN109296752B (en) | Rotary cylinder device sealing device | |
| US20160090990A1 (en) | Arrangement having a seal | |
| CN112610336B (en) | Interstage seal ring sealing structure | |
| CN206478378U (en) | A kind of manifold type pressure piping patcher | |
| CN205841747U (en) | A kind of contact type dry operating seals | |
| CN103097781B (en) | Cartridge seal and comprise its pump assembly | |
| CN209385656U (en) | A kind of turning circle cylindrical apparatus sealing device | |
| CN111853397A (en) | Non-contact rotary joint | |
| CN113653537A (en) | Graphite sealing shell with air guide groove and graphite sealing device | |
| CN207261248U (en) | A kind of outside framework oil seal mounting structure | |
| CN106090236B (en) | A kind of rotating machinery non-contacting seal adjustable apparatus | |
| CN201963875U (en) | Seal assembly for elastic compensation ring | |
| CN221074723U (en) | Gas and yellow phosphorus tail gas pressurization impeller shaft sealing structure |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant |