CN103470768B - A kind of carbon ring seal - Google Patents
A kind of carbon ring seal Download PDFInfo
- Publication number
- CN103470768B CN103470768B CN201310388301.1A CN201310388301A CN103470768B CN 103470768 B CN103470768 B CN 103470768B CN 201310388301 A CN201310388301 A CN 201310388301A CN 103470768 B CN103470768 B CN 103470768B
- Authority
- CN
- China
- Prior art keywords
- ring
- carbocyclic ring
- plain cushion
- carbocyclic
- sealing
- 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
Abstract
<b> the invention discloses 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 outer and both deads in line of carbocyclic ring, the axial width of described carbocyclic ring is less than the axial width of carbocyclic ring reinforcing ring, described carbocyclic ring reinforcing ring to contact with plain cushion at axial direction and coordinates, gap is formed between described carbocyclic ring and plain cushion, when carbocyclic ring floats, carbocyclic ring does not contact with plain cushion, and carbocyclic ring reinforcing ring and plain cushion contact with each other and coordinate, ensure sealing effect and axially mounting load, avoid because impurity particle in gas enters between carbocyclic ring and plain cushion like this, cause the two phase mutual friction, carbocyclic ring cannot be made to float, directly cause the situation that carbocyclic ring weares and teares on a large scale.</b>
Description
Technical field
the present invention relates to a kind of seal arrangement, particularly relate to a kind of carbon ring seal.
Background technique
carbon ring seal device belongs to the one of float-ring sealing device, utilizes the lubricity of carbocyclic ring self, reduces to reveal by the sealing of intimate contact.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, structure is simply easy to processing and assembling maintenance, is widely used the fields such as oil, chemical industry, metallurgy, as the use of the seal arrangement of steam turbine, compressor, generator, turbomachinery.
available ring carbon sealing comprises sealing seat, coordinates fixing sealing gland, the carbocyclic ring be arranged in sealing seat and sealing gland, plain cushion, carbocyclic ring reinforcing ring, ventilation ring with sealing seat, and it is formed by carbocyclic ring and rotor and seals.In the design of traditional carbon ring seal, carbocyclic ring often directly contacts with plain cushion in side, ensures location and thrust load.But, because carbon ring seal is used for the sealing of chemical industry, oil mesohigh gas, the solid particle polluter contained in gas can enter in Seal cage with pressurized gas, retains between carbocyclic ring and plain cushion, formed 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, ensure that the free floating of carbocyclic ring is significant, only guaranteed carbocyclic ring effective floating in impure gas, could improve the life-span of carbon ring seal.
Summary of the invention
the present invention seeks to: a kind of carbon ring seal is provided, it is retention gap between carbocyclic ring and plain cushion, and ensure to contact sealing effect by carbocyclic ring reinforcing ring with the cooperation of plain cushion, avoid because impurity particle in gas enters between carbocyclic ring and plain cushion, cause the two phase mutual friction, carbocyclic ring cannot be made to float, directly cause the situation that carbocyclic ring weares and teares on a large scale.
technological scheme of the present invention 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 outer and both deads in line of carbocyclic ring, the axial width of described carbocyclic ring is less than the axial width of carbocyclic ring reinforcing ring, described carbocyclic ring reinforcing ring to contact with plain cushion at axial direction and coordinates, gap is formed between described carbocyclic ring and plain cushion, when carbocyclic ring floats, carbocyclic ring does not contact with plain cushion, and carbocyclic ring reinforcing ring and plain cushion contact with each other and coordinate, ensure sealing effect and axially mounting load.Avoid because impurity particle in gas enters between carbocyclic ring and plain cushion like this, cause the two phase mutual friction, carbocyclic ring cannot be made to float, directly cause the situation that carbocyclic ring weares and teares on a large scale.
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 coordinated with two external conical shape faces respectively, and carbocyclic ring reinforcing ring coordinates fixing with carbocyclic ring by inner conical face with external conical shape face.Because carbocyclic ring and carbocyclic ring reinforcing ring adopt taper fit, so not only make carbocyclic ring assemble simple, easy to maintenance, ensure that 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, in the micro-gap that can prevent magazine particle from entering between carbocyclic ring reinforcing ring and plain cushion, prevents from being damaged by impurity particle.
above-mentioned carbocyclic ring reinforcing ring is made up of titanium alloy material, and carbocyclic ring reinforcing ring and carbocyclic ring can be made like this to float flexibly in the course of the work, avoids the carbocyclic ring wearing and tearing occurring causing because floating.
described carbocyclic ring reinforcing ring is provided with and adjusts gap ring between radial direction and sealing case inwall, so that adjusting play in assembly process.
further, described carbocyclic ring have two and coaxial spaced be arranged in sealing case, described carbocyclic ring reinforcing ring is corresponding two, ventilation ring is provided with between both sides carbocyclic ring reinforcing ring and carbocyclic ring, the radial hole of this ventilation ring is connected with the vent seal on sealing case, injects sealing gas in described ventilation ring by vent and radial hole.
the concrete structure of described sealing case is: the sealing gland that described sealing case comprises sealing seat, coordinates 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 remaining part in sealing case 1.
advantage of the present invention is:
1. the present invention's retention gap between carbocyclic ring and plain cushion, and ensure to contact sealing effect by carbocyclic ring reinforcing ring with the cooperation of plain cushion, avoid because impurity particle in gas enters between carbocyclic ring and plain cushion, cause the two phase mutual friction, carbocyclic ring cannot be made to float, directly cause the situation that carbocyclic ring weares and teares on a large scale.
2. in the present invention, carbocyclic ring and carbocyclic ring reinforcing ring adopt taper fit, so not only make carbocyclic ring assemble simple, easy to maintenance, ensure that the reinforcement ability of carbocyclic ring reinforcing ring to carbocyclic ring simultaneously.
3. the reinforcing ring of carbocyclic ring described in the present invention is made up of titanium alloy material, and carbocyclic ring reinforcing ring and carbocyclic ring can be made like this to float flexibly in the course of the work, avoids the carbocyclic ring wearing and tearing occurring causing because floating.
4. in the present invention, due to the conical design of carbocyclic ring reinforcing ring, it contacts cusp with plain cushion cooperation position, in the micro-gap that can prevent magazine particle from entering 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 invention will be further described:
fig. 1 of the present inventionly partly cuts open schematic diagram.
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, the carbocyclic ring 2 be arranged in sealing case 1, plain cushion 3, carbocyclic ring reinforcing ring 4 and wavy spring 5, carbocyclic ring 2 have two and coaxial spaced be arranged in sealing case 1, described carbocyclic ring reinforcing ring 4 is corresponding two, ventilation ring 8 is provided with between both sides carbocyclic ring reinforcing ring 4 and carbocyclic ring 2, the radial hole 81 of this ventilation ring 8 seals with the vent 11 on sealing case 1 and is connected, and injects sealing gas as nitrogen in described ventilation ring 8 by vent 11 and radial hole 81.Described plain cushion 3 is located at the side side of carbocyclic ring 2 away from 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 outer and both deads in line of carbocyclic ring 2, 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 to contact with plain cushion 3 at axial direction and coordinates, gap 6 is formed between described carbocyclic ring 2 and plain cushion 3, when carbocyclic ring 2 floats, carbocyclic ring 2 does not contact with plain cushion 3, and carbocyclic ring reinforcing ring 4 and plain cushion 3 contact with each other and coordinate, ensure sealing effect and axially mounting load.Avoid because impurity particle in gas enters between carbocyclic ring 2 and plain cushion 3 like this, cause the two phase mutual friction, carbocyclic ring 2 cannot be made to float, directly cause the situation that carbocyclic ring 2 weares and teares on a large scale.
the concrete structure of described carbocyclic ring reinforcing ring 4 and carbocyclic ring 2 and assembling mode between the two: 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 coordinated with two external conical shape faces 21 respectively, and carbocyclic ring reinforcing ring 4 coordinates fixing with carbocyclic ring 2 by inner conical face 41 with external conical shape face 21.Because carbocyclic ring 2 and carbocyclic ring reinforcing ring 4 adopt taper fit, so not only make carbocyclic ring assemble simple, easy to maintenance, ensure that the reinforcement ability of carbocyclic ring reinforcing ring 4 pairs of carbocyclic rings 2 simultaneously.On the other hand, due to the conical design of carbocyclic ring reinforcing ring 4, it contacts cusp with plain cushion 3 cooperation position, in the micro-gap that can prevent magazine particle from entering between carbocyclic ring reinforcing ring and plain cushion, prevents from being damaged by impurity particle.
above-mentioned carbocyclic ring reinforcing ring 4 is made up of titanium alloy material, and carbocyclic ring reinforcing ring 4 and carbocyclic ring 2 can be made like this to float flexibly in the course of the work, avoids the carbocyclic ring wearing and tearing occurring causing because floating.
described carbocyclic ring reinforcing ring 4 is provided with and adjusts gap ring 7 between radial direction and sealing case 1 inwall, so that adjusting play in assembly process.
the concrete structure of described sealing case 1 is: the sealing gland 13 that described sealing case 1 comprises sealing seat 12, coordinates 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 remaining part in sealing case 1.
working principle of the present invention is: as shown in Figure 1, be required sealing gas on the left of carbon ring seal, right side is external environment, is rotating shaft (not shown) inside carbocyclic ring, when rotating shaft is static, carbocyclic ring 2 contacts with rotating shaft, and along with the continuous rising of rotating shaft rotating speed, left gas enters carbocyclic ring 2 and rotating shaft gap, carbocyclic ring 2 floats, leave rotating shaft surface, utilize gas film lubrication, reduce Relative friction.Left gas, by left side carbocyclic ring 2, then enters in ventilation ring 8 if any leakage, and in ventilation ring 8, introducing has blanket gas (as nitrogen) to form sealing, and left gas therefore can be avoided to spill.Right side carbocyclic ring 2 then does the use insured.
the present invention is compared with conventional art, efficiently solving impure granular gas adopts in carbon ring seal, due to the problem that abrasion of particles carbocyclic ring 2 causes the life-span to decline, and the taper fit between carbocyclic ring 2 and carbocyclic ring reinforcing ring 4 is conducive to parts machining, assembling, maintenance, and the consolidation effect of carbocyclic ring reinforcing ring, be achieve many things at one stroke.
below be only embody rule example of the present invention, protection scope of the present invention is not constituted any limitation.In addition to the implementation, the present invention can also have other mode of execution.All employings are equal to the technological scheme of replacement or equivalent transformation formation, all drop within the present invention's 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 carbocyclic ring (2) and both deads in line outward, 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) to contact with plain cushion (3) at axial direction and coordinates, gap (6) is formed between described carbocyclic ring (2) and plain cushion (3), when carbocyclic ring (2) floats, carbocyclic ring (2) does not contact with plain cushion (3), and carbocyclic ring reinforcing ring (4) and plain cushion (3) contact with each other and coordinate, ensure 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) coordinated with two external conical shape faces (21) respectively, and carbocyclic ring reinforcing ring (4) coordinates fixing with carbocyclic ring (2) by inner conical face (41) with external conical shape face (21).
3. a kind of carbon ring seal according to claim 2, is characterized in that: described carbocyclic ring reinforcing ring (4) is made up of titanium alloy material.
4. a kind of carbon ring seal according to claim 1 or 2 or 3, is characterized in that: described carbocyclic ring reinforcing ring (4) is provided with and adjusts gap ring (7) between radial direction and sealing case (1) inwall.
5. a kind of carbon ring seal according to claim 1 or 2 or 3, it is characterized in that: described carbocyclic ring (2) have two and coaxial spaced be arranged in sealing case (1), described carbocyclic ring reinforcing ring (4) is corresponding two, ventilation ring (8) is provided with between both sides carbocyclic ring reinforcing ring (4) and carbocyclic ring (2), the radial hole (81) of this ventilation ring (8) seals with the vent (11) on sealing case (1) and is connected, and injects sealing gas in described ventilation ring (8) by vent (11) and radial hole (81).
6. a kind of carbon ring seal according to claim 1 or 2 or 3, it is characterized in that: the sealing gland (13) that described sealing case (1) comprises sealing seat (12), coordinates with sealing seat (12), 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 |
|---|---|---|---|
| CN201310388301.1A CN103470768B (en) | 2013-08-30 | 2013-08-30 | A kind of carbon ring seal |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310388301.1A CN103470768B (en) | 2013-08-30 | 2013-08-30 | A kind of carbon ring seal |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN103470768A CN103470768A (en) | 2013-12-25 |
| CN103470768B true CN103470768B (en) | 2015-12-02 |
Family
ID=49795748
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201310388301.1A Active CN103470768B (en) | 2013-08-30 | 2013-08-30 | A kind of carbon ring seal |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN103470768B (en) |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| FR617950A (en) * | 1926-06-21 | 1927-02-28 | Packing for piston rods, turbine shafts and the like | |
| GB1413029A (en) * | 1973-09-20 | 1975-11-05 | Groll Leonetti Cie Sa | Sealing means for a rotating shaft |
| US4381868A (en) * | 1981-07-24 | 1983-05-03 | Cameron Iron Works, Inc. | Pressure-actuated wellhead sealing assembly |
| CN201651315U (en) * | 2010-04-09 | 2010-11-24 | 郑州华能电力设备有限公司 | Composite mechanical seal device |
| CN102278475A (en) * | 2011-06-15 | 2011-12-14 | 浙江大学 | Dynamic sealing structure for reciprocating movement shaft between high temperature gas and high temperature liquid |
| CN203488717U (en) * | 2013-08-30 | 2014-03-19 | 西安交通大学苏州研究院 | Carbon ring seal |
-
2013
- 2013-08-30 CN CN201310388301.1A patent/CN103470768B/en active Active
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| FR617950A (en) * | 1926-06-21 | 1927-02-28 | Packing for piston rods, turbine shafts and the like | |
| GB1413029A (en) * | 1973-09-20 | 1975-11-05 | Groll Leonetti Cie Sa | Sealing means for a rotating shaft |
| US4381868A (en) * | 1981-07-24 | 1983-05-03 | Cameron Iron Works, Inc. | Pressure-actuated wellhead sealing assembly |
| CN201651315U (en) * | 2010-04-09 | 2010-11-24 | 郑州华能电力设备有限公司 | Composite mechanical seal device |
| CN102278475A (en) * | 2011-06-15 | 2011-12-14 | 浙江大学 | Dynamic sealing structure for reciprocating movement shaft between high temperature gas and high temperature liquid |
| CN203488717U (en) * | 2013-08-30 | 2014-03-19 | 西安交通大学苏州研究院 | Carbon ring seal |
Also Published As
| Publication number | Publication date |
|---|---|
| CN103470768A (en) | 2013-12-25 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| EP3187755B1 (en) | Sealing device | |
| CN202402644U (en) | Floating ring sealing device | |
| CN203488717U (en) | Carbon ring seal | |
| CN103032571A (en) | Bearing combined sealing device of powder concentrator | |
| CN104500743B (en) | Tightness system between a kind of reversion axle | |
| CN102788113A (en) | Squeeze film damper for transmission shafting | |
| CN203051766U (en) | Floating oil seal component and mechanical device with same | |
| CN202089138U (en) | Novel sealing structure for supporting wheel | |
| CA2836610C (en) | Rock bit having a labyrinth seal/bearing protection structure | |
| CN103470768B (en) | A kind of carbon ring seal | |
| CN206738174U (en) | A kind of submerged pump | |
| CN205001515U (en) | Design has bearing seal of labyrinth seals structure | |
| CN202284645U (en) | Mechanical seal device with simple wash water seal | |
| CN101644334A (en) | Non-contact hydrodynamic bearing sealing ring | |
| CN102829188A (en) | Rear shaft seal device with integral moving ring | |
| CN102937185A (en) | Multiple shaft seal structure | |
| CN202251476U (en) | Sealing type bearing seat | |
| CN105134957A (en) | Shaft seal with labyrinth seal structure | |
| CN203670778U (en) | Stirring shaft sealing structure and mortar stirring device | |
| CN106151525A (en) | A kind of single-end surface mechanical sealing device of improvement | |
| CN205678251U (en) | Hot blast regulation Circular ventilation door axle head composite sealing assembly | |
| CN105465374A (en) | Oil mist sealing structure of hydraulic generator | |
| CN202955013U (en) | Device for preventing fixing part and rotating part of anti-explosion self-priming pump from producing mechanical sparks | |
| CN203868334U (en) | Sealing device for base of coal pulverizer | |
| CN214578842U (en) | Stirring shaft sealing mechanism for grouting machine |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant |