CN209084006U - A kind of bilayer packing seal structure - Google Patents
A kind of bilayer packing seal structure Download PDFInfo
- Publication number
- CN209084006U CN209084006U CN201821720198.0U CN201821720198U CN209084006U CN 209084006 U CN209084006 U CN 209084006U CN 201821720198 U CN201821720198 U CN 201821720198U CN 209084006 U CN209084006 U CN 209084006U
- Authority
- CN
- China
- Prior art keywords
- stuffing
- box
- agitating shaft
- upper layer
- lower layer
- 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.)
- Expired - Fee Related
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Abstract
The utility model discloses a kind of double-deck packing seal structures, it includes agitating shaft, it is characterized in that, agitating shaft lower part is socketed bracing ring, fixed charge method end plate is equipped on the outside of bracing ring, bracing ring lower part is socketed tetrafluoro plate, there are spacing with fixed charge method end plate for tetrafluoro plate, lower layer's stuffing-box is equipped on the outside of tetrafluoro plate, lower layer's stuffing-box lower end outside is equipped with locating slot, locating slot is bonded on the inside of fixed charge method end plate with upside, lower layer's filler is equipped between lower layer's stuffing-box and agitating shaft, upper layer stuffing-box is socketed in the middle part of agitating shaft, between the lower part insertion lower layer's stuffing-box and agitating shaft of upper layer stuffing-box, upper layer filler is equipped between upper layer stuffing-box top and agitating shaft, the upper socket gland of the agitating shaft；The positive effect of the utility model is: structure is simple, easily manufactures, by the double-deck packing seal, is successively depressured；When pressure medium passes through agitating shaft surface, medium is repeatedly throttled by two layers of stuffing-box of axis periphery, two layers of filler, reaches good sealing effect by labyrinth seal structure.
Description
Technical field
The utility model relates to chemical industry, specifically a kind of double-deck packing seal structure.
Background technique
In chemical mixing unit, through frequently with packing seal structure as the sealed set at agitating shaft, but the sealing
Structure is usually chiefly used in normal pressure or the lower operating condition of pressure.When mixing plant internal pressure is higher or when temperature is higher.
General packing seal structure is extremely difficult to effective sealing effect.Such as when the pressure in agitating device is in 1.2 ~ 2.5MPa
Between, and temperature is at 300 DEG C or so, general packing seal and the mechanical seal of routine are difficult to reach ideal sealing effect
Fruit.And expensive if using extraordinary sealing and maintenance is also very inconvenient.
Utility model content
Based on the above issues, the utility model implementation discloses a kind of double-deck packing seal structure, relatively extraordinary sealing knot
For structure, structure is simple, and cost is not also expensive.
The utility model is to solve above-mentioned technical problem by following technical proposals:
A kind of bilayer packing seal structure, it includes agitating shaft, which is characterized in that the lower part of the agitating shaft is socketed support
Circle, the outside of the bracing ring are equipped with fixed charge method end plate, flush on the downside of the downside of the bracing ring and fixed charge method end plate, the fixation
The upside of end plate is protruding upward relative to the upside of bracing ring, and the lower part of the bracing ring is also socketed tetrafluoro plate, the tetrafluoro plate
Downside fitting bracing ring rear side setting, there are spacing, the tetrafluoros on the inside of the outside of the tetrafluoro plate and fixed charge method end plate
The outside of plate is equipped with lower layer's stuffing-box, and the outside of lower layer's stuffing-box lower end is equipped with locating slot, under lower layer's stuffing-box
Between the outside of end insertion tetrafluoro plate and the inside of fixed charge method end plate, the locating slot is pasted with the inside of fixed charge method end plate and upside respectively
It closes, lower layer's filler is equipped between lower layer's stuffing-box and agitating shaft, the middle part of the agitating shaft is socketed upper layer stuffing-box, described
Upper layer stuffing-box lower part insertion lower layer's stuffing-box top and agitating shaft between gap, lower layer's stuffing-box top it is interior
Side is recessed and is filled with a pair of of O-ring, the outside setting of the inside fitting upper layer stuffing-box of the O-ring, the upper layer filler
The Inside To Outside on letter top is recessed, and upper layer filler, the stirring are equipped between the top and agitating shaft of the upper layer stuffing-box
The upper socket gland of axis, between the top and agitating shaft of the lower end insertion upper layer stuffing-box of the gland.
Further, annular protrusion is equipped with the first fixed ring outward on the top of lower layer's stuffing-box, and the upper layer is filled out
Expect that annular outward protrude in the middle part of letter is equipped with the second fixed ring, first fixed ring runs through equipped with several first bolts up and down
Hole, second fixed ring runs through up and down equipped with several second bolts hole, right above and below first bolt hole and the second bolt hole
It answers.
Further, the pressure upper part of the cover exterior annular, which is protruded, is equipped with third fixed ring, above and below the third fixed ring
Through several third bolts hole are equipped with, the top of the upper layer stuffing-box is recessed straight down is equipped with several bolt fixing holes, institute
It is corresponding up and down with bolt fixing hole to state third bolt hole.
The positive effect of the utility model is: structure is simple, easily manufactures, maintenance easy to maintain, passes through the double-deck filler
Sealing is successively depressured, and agitating shaft generates circumferential pressure when rotation, when pressure medium passes through agitating shaft surface, medium quilt
Two layers of stuffing-box, two layers of the filler of axis periphery repeatedly throttle, and reach good sealing effect by labyrinth seal structure.
Detailed description of the invention
Fig. 1 is the overall structure diagram of the utility model.
Appended drawing reference
1 fixed charge method end plate, 2 tetrafluoro plate
3 lower layer's filler, 4 lower layer's stuffing-box
5 O-ring, 6 upper layer stuffing-box
7 upper layer filler, 8 gland
9 bracing ring, 10 agitating shaft
11 first fixed ring, 12 second fixed ring
13 third fixed ring, 14 first bolt hole
15 second bolt hole, 16 third bolt hole
17 bolt fixing hole, 18 locating slot.
Specific embodiment
Below with reference to examples and drawings, the utility model is described in further detail, but the reality of the utility model
The mode of applying is not limited only to this.
The utility model is intended to provide a kind of double-deck packing seal structure, as shown in Figure 1, it includes agitating shaft 10, it is special
Sign is that the lower part of the agitating shaft 10 is socketed bracing ring 9, and the outside of the bracing ring 9 is equipped with fixed charge method end plate 1, the support
The downside of circle 9 is flushed with the downside of fixed charge method end plate 1, and the upside of the fixed charge method end plate 1 is upward convex relative to the upside of bracing ring 9
Out, the lower part of the bracing ring 9 is also socketed tetrafluoro plate 2, and the rear side setting of the downside fitting bracing ring 9 of the tetrafluoro plate 2 is described
There are spacing, the outside of the tetrafluoro plate 2 is described equipped with lower layer's stuffing-box 4 for the outside of tetrafluoro plate 2 and the inside of fixed charge method end plate 1
It is recessed inwardly on the outside of 4 lower end of lower layer's stuffing-box equipped with locating slot 18, the lower end insertion tetrafluoro plate 2 of lower layer's stuffing-box 4
Between outside and the inside of fixed charge method end plate 1, the locating slot 18 is bonded with the inside of fixed charge method end plate 1 with upside respectively, under described
Lower layer's filler 3 is equipped between layer stuffing-box 4 and agitating shaft 10, a part of tetrafluoro plate 2 as sealing material is close in addition to itself
Except envelope property, the supporting role for holding lower layer's filler 3 from below is also acted as, as the top cover of equipment or the bilayer packing seal knot
The fixation position of structure.
During stirring, fixed charge method end plate 1 will limit agitating shaft 10 and the activities such as waves, shakes the agitating shaft 10
Phenomenon keeps stablizing, while fixed plate also functions to the supporting role that tetrafluoro plate 2 and lower layer's filler 3 are held from lower part.
The bracing ring 9 is placed on the inside of fixed charge method end plate 1, carries out a kind of supporting role to lower layer's filler 3, bracing ring 9 from
Tetrafluoro plate 2 and lower layer's filler 3 are held in lower part, and lower layer's filler 3 is a kind of flexible sealing material, such as aramid fiber or carbon fiber,
Lower layer's filler 3 is wrapped in 4 inside of 10 outside of agitating shaft and lower layer's stuffing-box, and the top of lower layer's filler 3 passes through upper layer stuffing-box 6
It is compressed in material letter, adequately fills up filler within this confined space, thus reach sealing function, it is close as first layer filler
Envelope.
The middle part of the agitating shaft 10 is socketed upper layer stuffing-box 6, and the lower part of the upper layer stuffing-box 6 is embedded in lower layer's stuffing-box
The inside in the gap between 4 top and agitating shaft 10,4 top of lower layer's stuffing-box is recessed and is filled with a pair of of O-ring 5, O
Type circle 5 is preferably rubber material, and the outside of the inside fitting upper layer stuffing-box 6 of the O-ring 5 is arranged, and O-ring 5 is wrapped in
It is compressed between layer stuffing-box 6 and lower layer's stuffing-box 4, and is located at 4 inside of lower layer's stuffing-box, 6 outside of upper layer stuffing-box, to reach
Inside To Outside to sealing function, 6 top of upper layer stuffing-box is recessed, the top of the upper layer stuffing-box 6 and agitating shaft
Upper layer filler 7 is equipped between 10, the lower end of the upper socket gland 8 of the agitating shaft 10, the gland 8 is embedded in upper layer stuffing-box
Between 6 top and agitating shaft 10.
The upper layer stuffing-box 6 connect lower layer's stuffing-box 4 and gland 8 and lower layer's stuffing-box 4 together to lower layer's filler 3 into
Row is limited, is suppressed, and upper layer stuffing-box 6 and gland 8 are together defined upper layer filler 7, suppress, to reach the work of sealing
With；Upper layer filler 7 is a kind of flexible sealing material, such as soft graphite line, and the outside and upper layer for being wrapped in agitating shaft 10 are filled out
Expect that the inside of letter 6, the top of upper layer filler 7 are compressed in upper layer stuffing-box 6 by gland 8, within this confined space sufficiently
Filler is filled up, to reach sealing function, as second layer packing seal；Gland 8 passes through gland 8 for suppressing upper layer filler 7
Upper layer filler 7 is compressed within upper layer stuffing-box 6 and upper layer stuffing-box 6 is together defined upper layer filler 7, suppresses, from
And have the function that sealing.
Annular protrusion is equipped with the first fixed ring 11 outward on the top of lower layer's stuffing-box 4, the upper layer stuffing-box 6
Annular protrusion is equipped with the second fixed ring 12 outward at middle part, and about 11 first fixed ring, which runs through, is equipped with several first bolts hole
14, about 12 second fixed ring, which runs through, is equipped with several second bolts hole 15, first bolt hole 14 and the second bolt hole
About 15 is corresponding, and clamping screw is screwed in the second bolt hole 15 and the first bolt hole 14, promotes lower layer's stuffing-box 4 and upper layer filler
Letter 6 it is relatively stable.
The exterior annular protrusion on 8 top of gland is equipped with third fixed ring 13, and about the 13 third fixed ring runs through
Equipped with several third bolts hole 16, the top of the upper layer stuffing-box 6 is recessed straight down is equipped with several bolt fixing holes 17, institute
It is corresponding with about 17 bolt fixing hole to state third bolt hole 16, clamping screw is passed through into third bolt hole 16 and locks bolt fixing hole
In 1, gland 8 can be locked above upper layer stuffing-box 6.
When it is implemented, circumferential pressure is generated when the agitating shaft 10 rotates, when pressure medium passes through agitating shaft
When 10 surface, medium is repeatedly throttled, and reaches sealing by the labyrinth seal structure around agitating shaft 10, because the double-deck filler is close
Envelope has layer-by-layer Antihypertensive Feature, and the circle configuration of upper layer 4 using the circle of lower layer 7 can preferably meet upper and lower level intrinsic standoff ratio 4:6 to 3:5
It is required that also reducing gland 8 and Bolt sizes, abrasion power, 10 design requirement of agitating shaft are dropped in the case where reaching seal request
It is minimum.
It, cannot the above content is specific preferred embodiment further detailed description of the utility model is combined
Assert that the utility model specific implementation is confined to these above-mentioned explanations.For the common skill of the utility model technical field
For art personnel, without departing from the concept of the premise utility, a number of simple deductions or replacements can also be made, all should
It is considered as belonging to the protection scope of the utility model.
Claims (3)
1. a kind of bilayer packing seal structure, it includes agitating shaft, which is characterized in that the lower part of the agitating shaft is socketed support
Circle, the outside of the bracing ring are equipped with fixed charge method end plate, flush on the downside of the downside of the bracing ring and fixed charge method end plate, the fixation
The upside of end plate is protruding upward relative to the upside of bracing ring, and the lower part of the bracing ring is also socketed tetrafluoro plate, the tetrafluoro plate
Downside fitting bracing ring rear side setting, there are spacing, the tetrafluoros on the inside of the outside of the tetrafluoro plate and fixed charge method end plate
The outside of plate is equipped with lower layer's stuffing-box, and the outside of lower layer's stuffing-box lower end is equipped with locating slot, under lower layer's stuffing-box
Between the outside of end insertion tetrafluoro plate and the inside of fixed charge method end plate, the locating slot is pasted with the inside of fixed charge method end plate and upside respectively
It closes, lower layer's filler is equipped between lower layer's stuffing-box and agitating shaft, the middle part of the agitating shaft is socketed upper layer stuffing-box, described
Upper layer stuffing-box lower part insertion lower layer's stuffing-box top and agitating shaft between gap, lower layer's stuffing-box top it is interior
Side is recessed and is filled with a pair of of O-ring, the outside setting of the inside fitting upper layer stuffing-box of the O-ring, the upper layer filler
The Inside To Outside on letter top is recessed, and upper layer filler, the stirring are equipped between the top and agitating shaft of the upper layer stuffing-box
The upper socket gland of axis, between the top and agitating shaft of the lower end insertion upper layer stuffing-box of the gland.
2. a kind of double-deck packing seal structure according to claim 1, which is characterized in that the top of lower layer's stuffing-box
Annular protrusion is equipped with the first fixed ring outward, and annular protrusion is fixed equipped with second outward at the middle part of the upper layer stuffing-box
Ring, first fixed ring run through up and down equipped with several first bolts hole, and second fixed ring runs through up and down equipped with several the
Two bolts hole, first bolt hole and the second bolt hole are corresponding up and down.
3. a kind of double-deck packing seal structure according to claim 2, which is characterized in that the outer side ring of the pressure upper part of the cover
Shape protrusion is equipped with third fixed ring, and the third fixed ring runs through equipped with several third bolts hole, the upper layer stuffing-box up and down
Top be recessed be equipped with several bolt fixing holes straight down, it is corresponding above and below the third bolt hole and bolt fixing hole.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821720198.0U CN209084006U (en) | 2018-10-23 | 2018-10-23 | A kind of bilayer packing seal structure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821720198.0U CN209084006U (en) | 2018-10-23 | 2018-10-23 | A kind of bilayer packing seal structure |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN209084006U true CN209084006U (en) | 2019-07-09 |
Family
ID=67120323
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201821720198.0U Expired - Fee Related CN209084006U (en) | 2018-10-23 | 2018-10-23 | A kind of bilayer packing seal structure |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN209084006U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111365461A (en) * | 2020-03-17 | 2020-07-03 | 江苏丰尚智能科技有限公司 | Thermal compression sealing device |
-
2018
- 2018-10-23 CN CN201821720198.0U patent/CN209084006U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111365461A (en) * | 2020-03-17 | 2020-07-03 | 江苏丰尚智能科技有限公司 | Thermal compression sealing device |
| CN111365461B (en) * | 2020-03-17 | 2022-02-22 | 江苏丰尚智能科技有限公司 | Thermal compression sealing device |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20190709 Termination date: 20201023 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |