CN203756997U - Multi-point hold-down high temperature-resistant dynamic sealing device - Google Patents
Multi-point hold-down high temperature-resistant dynamic sealing device Download PDFInfo
- Publication number
- CN203756997U CN203756997U CN201420153011.9U CN201420153011U CN203756997U CN 203756997 U CN203756997 U CN 203756997U CN 201420153011 U CN201420153011 U CN 201420153011U CN 203756997 U CN203756997 U CN 203756997U
- Authority
- CN
- China
- Prior art keywords
- high temperature
- graphite packing
- temperature resistant
- multiple spot
- dynamic 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.)
- Withdrawn - After Issue
Links
Landscapes
- Sealing Devices (AREA)
Abstract
The utility model relates to the technical field of the dynamic sealing device and discloses a multi-point hold-down high temperature-resistant dynamic sealing device. A sealing compression ring is arranged at an axial compression graphite disc root group so that the graphite disc root group is in close contact with the sealing surface of a fixing element and flexibly fixed with the fixing element by use of an axial fastening bolt; a spring hold-down piece is of a waved structure, and one end of the spring hold-down piece is fixed with a radial bolt hole of the sealing compression ring by virtue of a radial fastening bolt, while the other end of the spring hold-down piece is suspended in midair and fixed with the graphite disc root group in a flexible contact manner by virtue of a wave trough; the spring hold-down piece is used for tightly compressing the graphite disc root group and thus holding down the graphite disc root group evenly in the radial direction, so that the internal surface of the graphite disc root group is in close contact with the sealing surface of a rotary device. The multi-point hold-down high temperature-resistant dynamic sealing device realizes axial static sealing and radial flexible dynamic sealing on the rotating device; the adopted graphite disc root group is good in high temperature resistance so that the service life of the sealing device can be increased. The multi-point hold-down high temperature-resistant dynamic sealing device is applicable to large high-temperature rotary devices and has excellent market prospect.
Description
Technical field
The utility model relates to dynamic seal apparatus technical field, and particularly a kind of multiple spot compresses high temperature resistant dynamic seal apparatus.
Background technique
Solid of rotation equipment is the equipment airtight and not stall is moving normally, this kind equipment is very high to the requirement of sealing, both required to guarantee the leakproofness of sealing, do not affect again its rotation, existing motive sealing cannot realize sealing completely, can not avoid air to enter or solid of rotation internal gas overflows, cause energy consumption to increase, heat utilization rate reduces.Have at present two kinds of sealing means, a kind of is noncontact seal, i.e. labyrinth seal, and this sealing, owing to being subject to the radial deflection of cylindrical shell and the impact of axial rotation, constantly increasing the gap between fixing and rotating part, thereby affects sealing effect; A kind of is contact seal, the seal ring connected due to cylindrical shell forms with the sealing compressing tablet being connected with fixed body, this sealing must outer power be pressed on sealing compressing tablet on seal ring, and external force extruding and hot environment are very large to seal ring infringement, and long-term use caused seal failure.
Summary of the invention
The purpose of this utility model is: for solving the undesirable technical problem of sealing effect of existing sealing means, the utility model provides a kind of multiple spot to compress high temperature resistant dynamic seal apparatus, by multiple spot, compress the axial and radial seal having realized rotating equipment, good sealing effect, and the graphite packing group adopting has high-temperature stability, and the utility model is applicable to large high-temperature turning round equipment.
For achieving the above object, the technical solution adopted in the utility model is: provide a kind of multiple spot to compress high temperature resistant dynamic seal apparatus, having comprised: seal joint 1, clamping bolt, spring pressuring plate 3, graphite packing group 4; The axial circumference of described seal joint 1 has ladder cylindrical hole, seal joint 1 is in axial compression graphite packing group 4, make the sealing surface close contact of graphite packing group 4 and fixed body 6, and by axially fastening bolt 8 and compression spring 7 and fixed body 6, carry out flexibility and fix, realize axial flexible static sealing; The radial circumference of described seal joint 1 is evenly offered bolt hole; Described spring pressuring plate 3 adopts wave structure, one end is fixed by clamping bolt radially 2 and the radial bolts hole of seal joint 1, the other end soars, and the flexible contact by trough and graphite packing group 4 is fixed, described spring pressuring plate 3 presses graphite packing group 4 it is radially evenly compressed, make internal surface and the rotating equipment 5 sealing surface close contacts of graphite packing group 4, realize flexible dynamic seal (packing) radially.
Wherein: described graphite packing group 4 is comprised of 2～4 graphite plate roots.
Wherein: the trough amplitude of described spring pressuring plate 3 increases gradually, and each trough is corresponding with the center line of every graphite packing, can guarantee that each packing and the pressure of rotating equipment 5 point of contact are evenly, equate, have strengthened the effect of motive sealing.
Wherein: the material of described spring pressuring plate 3 adopts 65Mn.
Wherein: described radially clamping bolt 2 and axially fasten bolt 8 and all adopt hexagon socket head cap screw, installing space but also the easy maintenance and replacement of not only having saved equipment.
Wherein: the radial force of the spring pressuring plate 3 that described graphite packing group 4 is suffered is greater than the axial force of 1 pair of graphite packing group 4 of seal joint, guarantee its dynamic radial seal and axial static sealing.
Wherein: the annulus of described seal joint 1 is radially offered bolt hole by 2 °～4 ° around, the quantity of described bolt hole is to compress and counts.The angle of being separated by is 2 °～4 °, is the best angle of sealing, makes sealing effect best.
Wherein: the applicable working condition temperature range that described multiple spot compresses high temperature resistant dynamic seal apparatus is 300 ℃～500 ℃, while rotating equipment 5 is with the speed uniform rotation of 5～20 rad/min.
Wherein: the annulus peripheral shaft of described seal joint 1 is to opening ladder cylindrical hole by 10 °～15 °, and its angle is determined according to the load of seal joint 1.
Wherein: described ladder circular hole is for the ease of the installation of application hexagon socket head cap screw and fixing, structure be the cylindrical hole of two sections of different-diameters, the cylindrical hole that diameter is large is greater than the nut diameter of hexagon socket head cap screw, its length equals the height summation of nut and compression spring; The cylindrical hole that diameter is little is greater than the diameter of bolt shank, and its length is less than the length of bolt shank.
The beneficial effects of the utility model are: seal joint axial compression graphite packing group sealing of the present utility model, has realized the static sealing axial to rotating equipment; Adopt spring pressuring plate to press graphite packing group, realized the radial compliance motive sealing to rotating equipment; The graphite packing group resistance to high temperature adopting is good, can increase the working life of seal arrangement.The utility model is applicable to large high-temperature turning round equipment, has good market prospects.
Accompanying drawing explanation
Fig. 1 is the structural representation that the utility model multiple spot compresses high temperature resistant dynamic seal apparatus.
Fig. 2 is the mounting point schematic diagram that the utility model multiple spot compresses high temperature resistant dynamic seal apparatus.
Fig. 3 is that clamping bolt is fixed on the partial structurtes schematic diagram on seal joint.
Fig. 4 is the structural representation of the utility model shoulder hole.
Accompanying drawing sign: 1-seal joint, 2-is clamping bolt radially, 3-spring pressuring plate, 4-graphite packing group, 5-rotating equipment, 6-fixed body, 7-compression spring, 8-axially fastens bolt.
Embodiment
Below in conjunction with drawings and Examples, the utility model is elaborated.
With reference to Fig. 1, a kind of multiple spot of the utility model compresses high temperature resistant dynamic seal apparatus, comprising: seal joint 1, clamping bolt, spring pressuring plate 3, graphite packing group 4; The axial circumference of described seal joint 1 has ladder cylindrical hole, seal joint 1 is in axial compression graphite packing group 4, make the sealing surface close contact of graphite packing group 4 and fixed body 6, and by axially fastening bolt 8 and compression spring 7 and fixed body 6, carry out flexibility and fix, realize axial flexible static sealing; The radial circumference of described seal joint 1 is evenly offered bolt hole; Described spring pressuring plate 3 adopts wave structure, one end is fixed by clamping bolt radially 2 and the radial bolts hole of seal joint 1, the other end soars, and the flexible contact by trough and graphite packing group 4 is fixed, described spring pressuring plate 3 presses graphite packing group 4 it is radially evenly compressed, make internal surface and the rotating equipment 5 sealing surface close contacts of graphite packing group 4, realize flexible dynamic seal (packing) radially.
Described graphite packing group 4 is comprised of 2～4 graphite plate roots.
The trough amplitude of described spring pressuring plate 3 increases gradually, and each trough is corresponding with the center line of every graphite packing, can guarantee that each packing and the pressure of rotating equipment 5 point of contact are evenly, equate, have strengthened the effect of motive sealing.。
The material of described spring pressuring plate 3 adopts 65Mn.
Described radially clamping bolt 2 and axially fasten bolt 8 and all adopt hexagon socket head cap screw, installing space but also the easy maintenance and replacement of not only having saved equipment.
The radial force of the spring pressuring plate 3 that described graphite packing group 4 is suffered is greater than the axial force of 1 pair of graphite packing group 4 of seal joint, guarantees its dynamic radial seal and axial static sealing.
The annulus of described seal joint 1 is radially offered bolt hole by 2 °～4 ° around, and the quantity of described bolt hole is to compress and counts.The angle of being separated by is 2 °～4 °, is the best angle of sealing, makes sealing effect best.
The applicable working condition temperature range that described multiple spot compresses high temperature resistant dynamic seal apparatus is 300 ℃～500 ℃, and rotating equipment 5 is with the speed uniform rotation of 5～20 rad/min simultaneously.
The annulus peripheral shaft of described seal joint 1 is to opening ladder cylindrical hole by 10 °～15 °, and its angle is determined according to the load of seal joint 1.
Described ladder circular hole is for the ease of the installation of application hexagon socket head cap screw and fixing, structure be the cylindrical hole of two sections of different-diameters, the cylindrical hole that diameter is large is greater than the nut diameter of hexagon socket head cap screw, its length equals the height summation of nut and compression spring; The cylindrical hole that diameter is little is greater than the diameter of bolt shank, and its length is less than the length of bolt shank.
Embodiment 1(stresses the application of the utility model in rotary kiln pyrogenation stove)
A kind of multiple spot compresses high temperature resistant dynamic seal apparatus and is applied in rotary kiln pyrogenation stove, in described rotary kiln pyrogenation stove, pyrolytic reaction occurs, and reaction temperature, at 400 ℃～450 ℃, is rotated with the speed of 6～8 rad/min simultaneously.
The utility model seals between rotary kiln pyrogenation stove two ends and fixed body 6, (between the interior surface of contact of the sealing surface of rotating equipment and graphite packing group, pass through flexible contact, when the roughness that causes due to processing when the outer surface of rotating equipment is inhomogeneous, the sealing that also can make the sealing surface of rotating equipment and the interior surface of contact of graphite packing group keep good contacts, and can also guarantee the normal rotation of the equipment of walking around.) the axial circumference of described seal joint 1 has ladder circular hole, compression spring 7 is installed and is connected with the bolt hole of fixed body 6 by axially fastening bolt 8, carry out flexibility fixing, annulus is around by axially fastening 8 pairs of graphite packing group 4 axial compression of bolt, the sealing surface close contact that makes graphite packing group 4 and fixed body 6, guarantees axial static sealing; Seal joint 1 is locked awave spring pressuring plate 3 by clamping bolt 2 radially, make each trough corresponding with the center line of every graphite packing, make the internal surface of graphite packing group 4 and the sealing surface close contact of rotary kiln pyrogenation stove, guarantee the flexible radial force to graphite packing group 4, strengthened the effect of dynamic seal (packing).The radial force of described spring pressuring plate 3 is greater than the axial force of 1 pair of graphite packing group 4 of seal joint, has guaranteed dynamic seal (packing) radially.
Of the present utility model simple in structure, good sealing effect has played very important effect in pyrolysis system.
Embodiment 2(stresses the application of the utility model in the heating and stirring tank equipment of sludge treating system)
Reaction temperature in heating and stirring tank is 400 ℃～500 ℃, and tank body is fixed body, and live axle is rotating equipment.Live axle is with the speed uniform rotation of 14～16 rad/min.
The utility model seals between the live axle of heating and stirring tank and tank body, between the interior surface of contact of the sealing surface of live axle and graphite packing group, pass through flexible contact, when the roughness that causes due to processing when the outer surface of live axle is inhomogeneous, the sealing that also can make the sealing surface of live axle and the interior surface of contact of graphite packing group keep good contacts, and can also guarantee the normal rotation of live axle.The axial circumference of described seal joint 1 has ladder circular hole, compression spring 7 is installed and is connected with the bolt hole of fixed body 6 by axially fastening bolt 8, carry out flexibility fixing, axially to graphite packing group 4 axial compression, the sealing surface close contact that makes graphite packing group 4 and tank body, guarantees axial static sealing; Seal joint 1 is locked awave spring pressuring plate 3 by clamping bolt 2 radially, make each trough corresponding with the center line of every graphite packing, make the internal surface of graphite packing group 4 and the sealing surface close contact of heating and stirring tank, guarantee the flexible radial force to graphite packing group 4, strengthened the effect of dynamic seal (packing).The radial force of described spring pressuring plate 3 is greater than the axial force of 1 pair of graphite packing group 4 of seal joint, has guaranteed dynamic seal (packing) radially.
Embodiment 3(stresses the application in the aggregate drying cylinder equipment of the utility model in asphalt mixing system)
Reaction temperature in heating and stirring tank is 450 ℃～480 ℃, and cylindrical shell is rotating equipment, and the entrance barrel cover on cylindrical shell both sides, outlet barrel cover are fixed body.Cylindrical shell is with the speed uniform rotation of 7～9rad/min.
The utility model is to sealing between aggregate drying cylinder two ends and entrance barrel cover, outlet barrel cover, between the interior surface of contact of the sealing surface of cylindrical shell and graphite packing group, pass through flexible contact, when the roughness that causes due to processing when the outer surface of cylindrical shell is inhomogeneous, the sealing that also can make the sealing surface of cylindrical shell and the interior surface of contact of graphite packing group keep good contacts, and can also guarantee the normal rotation of cylindrical shell.The axial circumference of described seal joint 1 has ladder circular hole, compression spring 7 is installed and is connected with the bolt hole of fixed body 6 by axially fastening bolt 8, carry out flexibility fixing, annulus is around by axially fastening 8 pairs of graphite packing group 4 axial compression of bolt, make graphite packing group 4 and the entrance barrel cover on cylindrical shell both sides, the sealing surface close contact of outlet barrel cover, guarantee axial static sealing; Seal joint 1 is locked awave spring pressuring plate 3 by clamping bolt 2 radially, make each trough corresponding with the center line of every graphite packing, make the internal surface of graphite packing group 4 and the sealing surface close contact of aggregate drying cylinder, guarantee the flexible radial force to graphite packing group 4, strengthened the effect of dynamic seal (packing).The radial force of described spring pressuring plate 3 is greater than the axial force of 1 pair of graphite packing group 4 of seal joint, has guaranteed dynamic seal (packing) radially.
Above content is the further description of the utility model being done in conjunction with optimal technical scheme, can not assert that the concrete enforcement of invention only limits to these explanations.Concerning the utility model person of an ordinary skill in the technical field, not departing under the prerequisite of design of the present utility model, can also make simple deduction and replacement, all should be considered as protection domain of the present utility model.
Claims (10)
1. multiple spot compresses a high temperature resistant dynamic seal apparatus, it is characterized in that: described multiple spot compresses high temperature resistant dynamic seal apparatus and comprises: seal joint (1), clamping bolt, spring pressuring plate (3), graphite packing group (4); The axial circumference of described seal joint (1) has ladder cylindrical hole, seal joint (1) is in axial compression graphite packing group (4), make the sealing surface close contact of graphite packing group (4) and fixed body (6), and by axially fastening bolt (8) and compression spring (7) and fixed body (6), carry out flexibility and fix, realize axial flexible static sealing; The radial circumference of described seal joint (1) is evenly offered bolt hole; Described spring pressuring plate (3) adopts wave structure, one end is fixed by clamping bolt (2) radially and the radial bolts hole of seal joint (1), the other end soars, and the flexible contact by trough and graphite packing group (4) is fixed, described spring pressuring plate (3) presses graphite packing group (4) it is radially evenly compressed, make internal surface and rotating equipment (5) the sealing surface close contact of graphite packing group (4), realize flexible dynamic seal (packing) radially.
2. a kind of multiple spot according to claim 1 compresses high temperature resistant dynamic seal apparatus, it is characterized in that: described graphite packing group (4) is comprised of 2～4 graphite plate roots.
3. a kind of multiple spot according to claim 1 compresses high temperature resistant dynamic seal apparatus, it is characterized in that: the trough amplitude of described spring pressuring plate (3) increases gradually, and each trough is corresponding with the center line of every graphite packing.
4. according to a kind of multiple spot described in claim 1 or 3, compress high temperature resistant dynamic seal apparatus, it is characterized in that: the material of described spring pressuring plate (3) adopts 65Mn.
5. a kind of multiple spot according to claim 1 compresses high temperature resistant dynamic seal apparatus, it is characterized in that: described radially clamping bolt (2) and axially fasten bolt (8) and all adopt hexagon socket head cap screw.
6. a kind of multiple spot according to claim 1 compresses high temperature resistant dynamic seal apparatus, it is characterized in that: the radial force of the spring pressuring plate (3) that described graphite packing group (4) is suffered is greater than the axial force of seal joint (1) to graphite packing group (4).
7. a kind of multiple spot according to claim 1 compresses high temperature resistant dynamic seal apparatus, it is characterized in that: the annulus of described seal joint (1) is radially offered bolt hole by 2 °～4 ° around, and the quantity of described bolt hole is to compress and counts.
8. a kind of multiple spot according to claim 1 compresses high temperature resistant dynamic seal apparatus, it is characterized in that: the applicable working condition temperature range that described multiple spot compresses high temperature resistant dynamic seal apparatus is 300 ℃～500 ℃, rotating equipment (5) is with the speed uniform rotation of 5～20 rad/min simultaneously.
9. a kind of multiple spot according to claim 1 compresses high temperature resistant dynamic seal apparatus, it is characterized in that: the annulus peripheral shaft of described seal joint (1) is to opening ladder cylindrical hole by 10 °～15 °, and its angle is determined according to the load of seal joint (1).
10. a kind of multiple spot according to claim 1 compresses high temperature resistant dynamic seal apparatus, it is characterized in that: the structure of described ladder circular hole is the cylindrical hole of two sections of different-diameters, the cylindrical hole that diameter is large is greater than the nut diameter of hexagon socket head cap screw, and its length equals the height summation of nut and compression spring; The cylindrical hole that diameter is little is greater than the diameter of bolt shank, and its length is less than the length of bolt shank.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420153011.9U CN203756997U (en) | 2014-04-01 | 2014-04-01 | Multi-point hold-down high temperature-resistant dynamic sealing device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420153011.9U CN203756997U (en) | 2014-04-01 | 2014-04-01 | Multi-point hold-down high temperature-resistant dynamic sealing device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203756997U true CN203756997U (en) | 2014-08-06 |
Family
ID=51252276
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420153011.9U Withdrawn - After Issue CN203756997U (en) | 2014-04-01 | 2014-04-01 | Multi-point hold-down high temperature-resistant dynamic sealing device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203756997U (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103867724A (en) * | 2014-04-01 | 2014-06-18 | 大连容大资源循环利用咨询设计有限公司 | Multipoint compression high-temperature-resistant dynamic sealing device |
| CN104949504A (en) * | 2015-06-04 | 2015-09-30 | 黎建军 | Detection middle part structure of rotary kiln supporting roller |
| CN107140133A (en) * | 2017-06-09 | 2017-09-08 | 中航鼎衡造船有限公司 | A kind of asphalt tanker cargo pipe work crossing cabin sealing device |
| CN113232166A (en) * | 2021-06-02 | 2021-08-10 | 山东精砼工程机械股份有限公司 | Soft rotary sealing device of elastic support |
-
2014
- 2014-04-01 CN CN201420153011.9U patent/CN203756997U/en not_active Withdrawn - After Issue
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103867724A (en) * | 2014-04-01 | 2014-06-18 | 大连容大资源循环利用咨询设计有限公司 | Multipoint compression high-temperature-resistant dynamic sealing device |
| CN103867724B (en) * | 2014-04-01 | 2015-10-28 | 大连容大资源循环利用咨询设计有限公司 | A kind of multiple spot compresses high temperature resistant dynamic seal apparatus |
| CN104949504A (en) * | 2015-06-04 | 2015-09-30 | 黎建军 | Detection middle part structure of rotary kiln supporting roller |
| CN107140133A (en) * | 2017-06-09 | 2017-09-08 | 中航鼎衡造船有限公司 | A kind of asphalt tanker cargo pipe work crossing cabin sealing device |
| CN113232166A (en) * | 2021-06-02 | 2021-08-10 | 山东精砼工程机械股份有限公司 | Soft rotary sealing device of elastic support |
| CN113232166B (en) * | 2021-06-02 | 2022-09-27 | 山东精砼工程机械股份有限公司 | Soft rotary sealing device of elastic support |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN103867724B (en) | A kind of multiple spot compresses high temperature resistant dynamic seal apparatus | |
| CN203756997U (en) | Multi-point hold-down high temperature-resistant dynamic sealing device | |
| CN105317732A (en) | Sealing device of ammonia feeding device | |
| CN204213330U (en) | Coal pulverizer tire plate seal arrangement | |
| CN203926761U (en) | A kind of for lining plate of coal grinder bolt seal assembly | |
| CN206017724U (en) | A kind of novel rotation stove sealing device for being convenient for changing airtight and watertight padding | |
| CN203926762U (en) | A kind of lining plate of coal grinder bolt seal assembly | |
| CN214250531U (en) | Rotary kiln head sealing device | |
| CN107143655B (en) | Turn round the floating type dynamic sealing device of pyrolysis oven automatic tightening | |
| CN202955413U (en) | Pipeline emergent repair section | |
| CN109210196B (en) | Sealing connection structure of mechanical shaft sealing shaft sleeve of high-temperature equipment | |
| CN203761003U (en) | Three-cable pipeline plugging assembly | |
| CN110425868B (en) | Secondary air supply device of rotary kiln | |
| CN104747853A (en) | Maintenance-free rotating compensator | |
| CN202579290U (en) | Single mechanical sealing device for sewage pump | |
| CN209054083U (en) | The Hermetical connecting structure of high-temperature service mechanical shaft seal axle sleeve | |
| CN208536587U (en) | A kind of Anti-air-leakage rotary kiln sealing system | |
| CN203770199U (en) | Shaft seal locking device | |
| CN207018523U (en) | A kind of shaft end seal | |
| CN207034183U (en) | Seal | |
| CN206694554U (en) | Seal | |
| CN106743211B (en) | Spiral conveying type material processing device and high-temperature reaction equipment | |
| CN106523708B (en) | A kind of polytetrafluoroethylene (PTFE) contact type sealing device | |
| CN204402772U (en) | Wind-power tower | |
| CN209246441U (en) | A kind of solar thermal collector fast connecting joint |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| AV01 | Patent right actively abandoned |
Granted publication date: 20140806 Effective date of abandoning: 20151028 |
|
| C25 | Abandonment of patent right or utility model to avoid double patenting |