CN203488717U - Carbon ring seal - Google Patents
Carbon ring seal Download PDFInfo
- Publication number
- CN203488717U CN203488717U CN201320537346.6U CN201320537346U CN203488717U CN 203488717 U CN203488717 U CN 203488717U CN 201320537346 U CN201320537346 U CN 201320537346U CN 203488717 U CN203488717 U CN 203488717U
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- CN
- China
- Prior art keywords
- ring
- carbocyclic ring
- carbon ring
- sealing
- reinforcing
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- Withdrawn - After Issue
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Abstract
The utility model discloses a carbon ring seal which comprises a seal box, a carbon ring, a flat gasket, a carbon ring reinforcing ring and a wavy spring, wherein the carbon ring is arranged in the seal box. The flat gasket is arranged on the side face of the carbon ring, the wavy spring is pressed between the seal box and the flat gasket, the carbon ring reinforcing ring is sleeved outside the carbon ring, the axis of the carbon ring reinforcing ring is overlapped with that of the carbon ring, the axial width of the carbon ring is smaller than that of the carbon ring reinforcing ring, the carbon ring reinforcing ring is axially matched with the flat gasket in a contacting manner, a gap is formed between the carbon ring and the flat gasket, the carbon ring does not contact with the flat gasket while the carbon ring reinforcing ring is matched with the flat gasket in the contacting manner when the carbon ring floats, seal effect and axial bearing load are ensured, so that mutual friction of the carbon ring and the flat gasket due to the fact that impurity particles in gas enter the space between the carbon ring and the flat gasket is avoided, and large-scale abrasion of the carbon ring directly caused by floating of the carbon ring can be avoided.
Description
Technical field
the utility model relates to a kind of seal arrangement, relates in particular to a kind of carbon ring seal.
Background technique
carbon ring seal device belongs to a kind of of float-ring sealing device, utilizes the lubricity of carbocyclic ring self, by being close to the sealing of contact, reduces to reveal.Simultaneously, carbon ring seal needs to use isolation gas often, as nitrogen, be mainly used in poisonous, the inflammable medium of isolating seal, because of its good sealing effect, simple in structurely be easy to processing and assembling maintenance, be widely used the fields such as oil, chemical industry, metallurgy, as the use of the seal arrangement of steam turbine, compressor, generator, turbomachinery.
the sealing gland that available ring carbon sealing comprises sealing seat, be fixed with sealing seat, be arranged at carbocyclic ring, plain cushion, carbocyclic ring reinforcing ring, ventilation ring in sealing seat and sealing gland, it seals by carbocyclic ring and rotor formation.In the design of traditional carbon ring seal, carbocyclic ring often directly contacts with plain cushion in side, guarantees location and thrust load.Yet, because carbon ring seal is used for the sealing of chemical industry, oil mesohigh gas, the solid particle polluter containing in gas can enter in Seal cage with pressurized gas, between carbocyclic ring and plain cushion, retains, form and hinder and phase mutual friction, have a strong impact on the floating effect of carbocyclic ring.If things go on like this, the floating effect severe exacerbation of carbocyclic ring, causes it directly to contact with rotating shaft, significantly reduces the seal arrangement life-span.
therefore, in carbon ring seal, guarantee that the free floating of carbocyclic ring is significant, guaranteed carbocyclic ring effective floating in impure gas only, the life-span that could improve carbon ring seal.
Summary of the invention
the utility model object is: a kind of carbon ring seal is provided, it is retention gap between carbocyclic ring and plain cushion, and guarantee to contact sealing effect by carbocyclic ring reinforcing ring and the cooperation of plain cushion, avoid because impurity particle in gas enters between carbocyclic ring and plain cushion, cause the two phase mutual friction, cannot make carbocyclic ring float, directly cause the situation of the extensive wearing and tearing of carbocyclic ring.
the technical solution of the utility model is: a kind of carbon ring seal, comprise sealing case, be arranged at the carbocyclic ring in sealing case, plain cushion, carbocyclic ring reinforcing ring and wavy spring, described plain cushion is located at the side of carbocyclic ring, described wavy spring is pressed between sealing case and plain cushion, described carbocyclic ring reinforcing ring is sheathed on outside carbocyclic ring and both deads in line, the axial width of described carbocyclic ring is less than the axial width of carbocyclic ring reinforcing ring, the cooperation that contacts with plain cushion at axial direction of described carbocyclic ring reinforcing ring, between described carbocyclic ring and plain cushion, be formed with gap, when carbocyclic ring floats, carbocyclic ring does not contact with plain cushion, and carbocyclic ring reinforcing ring is in contact with one another with plain cushion and coordinates, guarantee sealing effect and axially mounting load.Avoid like this, because impurity particle in gas enters between carbocyclic ring and plain cushion, causing the two phase mutual friction, cannot make carbocyclic ring float, directly cause the situation of the extensive wearing and tearing of carbocyclic ring.
the concrete structure of described carbocyclic ring reinforcing ring and carbocyclic ring and assembling mode between the two: described carbocyclic ring periphery wall has two external conical shape faces, and two external conical shape faces are connected to form V-type, the inwall of described carbocyclic ring reinforcing ring has two inner conical faces that coordinate with two external conical shape faces respectively, and carbocyclic ring reinforcing ring and carbocyclic ring are fixed by inner conical face and external conical shape face.Due to carbocyclic ring and carbocyclic ring reinforcing ring employing taper fit, so not only make carbocyclic ring assembling simple, easy to maintenance, guaranteed the reinforcement ability of carbocyclic ring reinforcing ring to carbocyclic ring simultaneously.On the other hand, due to the conical design of carbocyclic ring reinforcing ring, it contacts cusp with plain cushion cooperation position, can prevent that magazine particle from entering in the micro-gap between carbocyclic ring reinforcing ring and plain cushion, prevents from being damaged by impurity particle.
above-mentioned carbocyclic ring reinforcing ring is made by titanium alloy material, can make like this carbocyclic ring reinforcing ring and carbocyclic ring float flexibly in the course of the work, avoids occurring that the carbocyclic ring causing because floating weares and teares.
described carbocyclic ring reinforcing ring is provided with between radial direction and sealing case inwall adjusts gap ring, so that adjusting play in assembly process.
further, described carbocyclic ring has two and coaxial spaced and is arranged in sealing case, described carbocyclic ring reinforcing ring is corresponding two, between both sides carbocyclic ring reinforcing ring and carbocyclic ring, be provided with ventilation ring, the radial hole of this ventilation ring is connected with the vent sealing on sealing case, in described ventilation ring, by vent and radial hole, injects sealing gas.
the concrete structure of described sealing case is: described sealing case comprises sealing seat, the sealing gland coordinating with sealing seat, and described sealing gland and sealing seat are spirally connected fixing by screw.This assembling mode is the assembling for the ease of sealing case 1 interior remaining part.
the utility model has the advantages that:
1. the utility model retention gap between carbocyclic ring and plain cushion, and guarantee to contact sealing effect by carbocyclic ring reinforcing ring and the cooperation of plain cushion, avoid because impurity particle in gas enters between carbocyclic ring and plain cushion, cause the two phase mutual friction, cannot make carbocyclic ring float, directly cause the situation of the extensive wearing and tearing of carbocyclic ring.
. in the utility model, carbocyclic ring and carbocyclic ring reinforcing ring adopt taper fit, so not only make carbocyclic ring assembling simple, easy to maintenance, have guaranteed the reinforcement ability of carbocyclic ring reinforcing ring to carbocyclic ring simultaneously.
. the reinforcing ring of carbocyclic ring described in the utility model is made by titanium alloy material, can make like this carbocyclic ring reinforcing ring and carbocyclic ring float flexibly in the course of the work, avoids occurring that the carbocyclic ring causing because floating weares and teares.
. in the utility model, due to the conical design of carbocyclic ring reinforcing ring, it contacts cusp with plain cushion cooperation position, can prevent that magazine particle from entering in the micro-gap between carbocyclic ring reinforcing ring and plain cushion, prevents from being damaged by impurity particle.
Accompanying drawing explanation
below in conjunction with drawings and Examples, the utility model is further described:
fig. 1 is the schematic diagram that partly cuts open of the present utility model.
wherein: 1 sealing case; 11 vents; 12 sealing seats; 13 sealing glands; 14 screws;
2 carbocyclic rings; 21 external conical shape faces;
3 plain cushions;
4 carbocyclic ring reinforcing rings; 41 inner conical faces;
5 wavy springs;
6 gaps;
7 adjust gap ring;
8 ventilation rings.
Embodiment
embodiment: as shown in Figure 1, a kind of carbon ring seal, comprise sealing case 1, be arranged at carbocyclic ring 2, plain cushion 3, carbocyclic ring reinforcing ring 4 and wavy spring 5 in sealing case 1, carbocyclic ring 2 has two and coaxial spaced and is arranged in sealing case 1, described carbocyclic ring reinforcing ring 4 is corresponding two, between both sides carbocyclic ring reinforcing ring 4 and carbocyclic ring 2, be provided with ventilation ring 8, the radial hole 81 of this ventilation ring 8 is connected with vent 11 sealings on sealing case 1, in described ventilation ring 8, by vent 11 and radial hole 81, injects sealing gas as nitrogen.Described plain cushion 3 is located at carbocyclic ring 2 away from a side side of ventilation ring 8, described wavy spring 5 is pressed between sealing case 1 and plain cushion 3, described carbocyclic ring reinforcing ring 4 is sheathed on outside carbocyclic ring 2 and both deads in line, the axial width of described carbocyclic ring 2 is less than the axial width of carbocyclic ring reinforcing ring 4, the cooperation that contacts with plain cushion 3 at axial direction of described carbocyclic ring reinforcing ring 4, between described carbocyclic ring 2 and plain cushion 3, be formed with gap 6, when carbocyclic ring 2 floats, carbocyclic ring 2 does not contact with plain cushion 3, and carbocyclic ring reinforcing ring 4 is in contact with one another with plain cushion 3 and coordinates, guarantee sealing effect and axially mounting load.Avoid like this, because impurity particle in gas enters between carbocyclic ring 2 and plain cushion 3, causing the two phase mutual friction, cannot make carbocyclic ring 2 float, directly cause the situation of carbocyclic ring 2 extensive wearing and tearing.
described carbocyclic ring reinforcing ring 4 and the concrete structure of carbocyclic ring 2 and assembling mode between the two: described carbocyclic ring 2 periphery walls have two external conical shape faces 21, and two external conical shape faces 21 are connected to form V-type, the inwall of described carbocyclic ring reinforcing ring 4 has two inner conical faces 41 that coordinate with two external conical shape faces 21 respectively, and carbocyclic ring reinforcing ring 4 is fixed by inner conical face 41 and external conical shape face 21 with carbocyclic ring 2.Because carbocyclic ring 2 and carbocyclic ring reinforcing ring 4 adopt taper fit, so not only make carbocyclic ring assembling simple, easy to maintenance, guaranteed the reinforcement ability of 4 pairs of carbocyclic rings 2 of carbocyclic ring reinforcing ring simultaneously.On the other hand, due to the conical design of carbocyclic ring reinforcing ring 4, it contacts cusp with plain cushion 3 cooperation positions, can prevent that magazine particle from entering in the micro-gap between carbocyclic ring reinforcing ring and plain cushion, prevents from being damaged by impurity particle.
above-mentioned carbocyclic ring reinforcing ring 4 is made by titanium alloy material, can make like this carbocyclic ring reinforcing ring 4 and carbocyclic ring 2 float flexibly in the course of the work, avoids occurring that the carbocyclic ring causing because floating weares and teares.
described carbocyclic ring reinforcing ring 4 is provided with between radial direction and sealing case 1 inwall adjusts gap ring 7, so that adjusting play in assembly process.
the concrete structure of described sealing case 1 is: described sealing case 1 comprises sealing seat 12, the sealing gland 13 coordinating with sealing seat 12, and described sealing gland 13 and sealing seat 12 are spirally connected fixing by screw 14.This assembling mode is the assembling for the ease of sealing case 1 interior remaining part.
working principle of the present utility model is: as shown in Figure 1, carbon ring seal left side is required sealing gas, and right side is external environment, and carbocyclic ring inner side is rotating shaft (not shown), when rotating shaft is static, carbocyclic ring 2 contacts with rotating shaft, and along with the continuous rising of rotating shaft rotating speed, left side gas enters carbocyclic ring 2 and rotating shaft gap, carbocyclic ring 2 floats, leave rotating shaft surface, utilize gas film lubrication, reduce friction relatively.Left side gas, by left side carbocyclic ring 2, enters in ventilation ring 8 if any revealing, and introduce in ventilation ring 8, has blanket gas (as nitrogen) to form sealing, therefore can avoid left side gas to spill.Right side carbocyclic ring 2 is done the use of insuring.
the utility model is compared with conventional art, efficiently solving impure granular gas adopts in carbon ring seal, because abrasion of particles carbocyclic ring 2 causes the problem that the life-span declines, and the taper fit that carbocyclic ring 2 and carbocyclic ring reinforcing ring are 4 is conducive to parts machining, assembling, maintenance, and the consolidation effect of carbocyclic ring reinforcing ring, be to achieve many things at one stroke.
below be only concrete exemplary applications of the present utility model, protection domain of the present utility model is not constituted any limitation.In addition to the implementation, the utility model can also have other mode of execution.All employings are equal to the technological scheme of replacement or equivalent transformation formation, within all dropping on the utility model scope required for protection.
Claims (6)
1. a carbon ring seal, comprise sealing case (1), be arranged at the carbocyclic ring (2) in sealing case (1), plain cushion (3), carbocyclic ring reinforcing ring (4) and wavy spring (5), described plain cushion (3) is located at the side of carbocyclic ring (2), described wavy spring (5) is pressed between sealing case (1) and plain cushion (3), it is characterized in that: described carbocyclic ring reinforcing ring (4) is sheathed on outside carbocyclic ring (2) and both deads in line, the axial width of described carbocyclic ring (2) is less than the axial width of carbocyclic ring reinforcing ring (4), described carbocyclic ring reinforcing ring (4) cooperation that contacts with plain cushion (3) at axial direction, between described carbocyclic ring (2) and plain cushion (3), be formed with gap (6), when carbocyclic ring (2) floats, carbocyclic ring (2) does not contact with plain cushion (3), and carbocyclic ring reinforcing ring (4) is in contact with one another with plain cushion (3) and coordinates, guarantee sealing effect and axially mounting load.
2. a kind of carbon ring seal according to claim 1, it is characterized in that: described carbocyclic ring (2) periphery wall has two external conical shape faces (21), and two external conical shape faces (21) are connected to form V-type, the inwall of described carbocyclic ring reinforcing ring (4) has two inner conical faces (41) that coordinate with two external conical shape faces (21) respectively, and carbocyclic ring reinforcing ring (4) is fixed by inner conical face (41) and external conical shape face (21) with carbocyclic ring (2).
3. a kind of carbon ring seal according to claim 2, is characterized in that: described carbocyclic ring reinforcing ring (4) is made by titanium alloy material.
4. according to a kind of carbon ring seal described in claim 1 or 2 or 3, it is characterized in that: described carbocyclic ring reinforcing ring (4) is provided with between radial direction and sealing case (1) inwall adjusts gap ring (7).
5. according to a kind of carbon ring seal described in claim 1 or 2 or 3, it is characterized in that: described carbocyclic ring (2) has two and coaxial spaced and is arranged in sealing case (1), described carbocyclic ring reinforcing ring (4) is corresponding two, between both sides carbocyclic ring reinforcing rings (4) and carbocyclic ring (2), be provided with ventilation ring (8), the radial hole (81) of this ventilation ring (8) is connected with vent (11) sealing on sealing case (1), in described ventilation ring (8), by vent (11) and radial hole (81), injects sealing gas.
6. according to a kind of carbon ring seal described in claim 1 or 2 or 3, it is characterized in that: described sealing case (1) comprises sealing seat (12), the sealing gland (13) coordinating with sealing seat (12), and described sealing gland (13) and sealing seat (12) are spirally connected fixing by screw (14).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320537346.6U CN203488717U (en) | 2013-08-30 | 2013-08-30 | Carbon ring seal |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320537346.6U CN203488717U (en) | 2013-08-30 | 2013-08-30 | Carbon ring seal |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203488717U true CN203488717U (en) | 2014-03-19 |
Family
ID=50259552
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201320537346.6U Withdrawn - After Issue CN203488717U (en) | 2013-08-30 | 2013-08-30 | Carbon ring seal |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203488717U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103470768A (en) * | 2013-08-30 | 2013-12-25 | 西安交通大学苏州研究院 | Carbon ring seal |
| CN106382368A (en) * | 2016-11-30 | 2017-02-08 | 重庆江增船舶重工有限公司 | Shrinking sealed carbon ring and mounting structure thereof |
| CN107084312A (en) * | 2017-04-05 | 2017-08-22 | 哈尔滨汽轮机厂有限责任公司 | A kind of Blast Furnace Gas Turbine nitrogen-sealed system |
-
2013
- 2013-08-30 CN CN201320537346.6U patent/CN203488717U/en not_active Withdrawn - After Issue
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103470768A (en) * | 2013-08-30 | 2013-12-25 | 西安交通大学苏州研究院 | Carbon ring seal |
| CN103470768B (en) * | 2013-08-30 | 2015-12-02 | 西安交通大学苏州研究院 | A kind of carbon ring seal |
| CN106382368A (en) * | 2016-11-30 | 2017-02-08 | 重庆江增船舶重工有限公司 | Shrinking sealed carbon ring and mounting structure thereof |
| CN107084312A (en) * | 2017-04-05 | 2017-08-22 | 哈尔滨汽轮机厂有限责任公司 | A kind of Blast Furnace Gas Turbine nitrogen-sealed system |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| AV01 | Patent right actively abandoned |
Granted publication date: 20140319 Effective date of abandoning: 20151202 |
|
| AV01 | Patent right actively abandoned |
Granted publication date: 20140319 Effective date of abandoning: 20151202 |
|
| C25 | Abandonment of patent right or utility model to avoid double patenting |