CN207989385U - A kind of stuffing seal of the double envelopes of gas-liquid - Google Patents
A kind of stuffing seal of the double envelopes of gas-liquid Download PDFInfo
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- CN207989385U CN207989385U CN201820385235.0U CN201820385235U CN207989385U CN 207989385 U CN207989385 U CN 207989385U CN 201820385235 U CN201820385235 U CN 201820385235U CN 207989385 U CN207989385 U CN 207989385U
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- packing
- filler
- packing ring
- pump cover
- gland
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Abstract
The utility model discloses a kind of stuffing seals of the double envelopes of gas-liquid, including being placed in the seal assembly of pump cover inner cavity, seal assembly being clamped the gland to prevent seal assembly to be axially moveable, the outer wall of gland is contacted with the inner wall of pump cover, and gland is fixedly connected with pump cover, seal assembly includes at least three groups of filler packings, at least two packing rings being arranged between arbitrary two groups adjacent filler packings, filler packing, packing ring are set on axle sleeve, and the outer diameter of filler packing is more than the outer diameter of packing ring；The peripheral wall of pump cover is equipped with to the grease cup for injecting butter in the packing ring of side medium, it is additionally provided with warter connection on the peripheral wall of pump cover, the warter connection is used to inject cooling water into the packing ring adjacent with the injection packing ring of butter, to prevent butter emulsification thinning.The stuffing seal of the utility model is economic, practical, can achieve the effect that the double envelopes of gas-liquid.
Description
Technical field
The utility model belongs to centrifugal pump packing seal field, and in particular to a kind of stuffing seal of the double envelopes of gas-liquid.
Background technology
Structure is as shown in Figure 1, the packing seal of this structure can only when traditional chemical centrifugal pump axle envelope is packing seal
Canned pump liquor charging body.And when pumping in liquid containing volatile gas, the gas volatilized in medium transmission process will
It is leaked into air by seal chamber, environment had not only been polluted if this gas is pernicious gas, after leakage but also live behaviour can be endangered
Make the health of personnel.
Invention content
In order to solve the problems, such as that existing stuffing seal can not pump volatilization gas, the utility model provides one kind
The stuffing seal of the double envelopes of gas-liquid.The technical problems to be solved in the utility model is achieved through the following technical solutions：
A kind of stuffing seal of the double envelopes of gas-liquid, including be placed in the seal assembly of pump cover inner cavity, clamp seal assembly
With the gland for preventing seal assembly to be axially moveable, the outer wall of the gland is contacted with the inner wall of pump cover, and filler
Gland is fixedly connected with pump cover, and the seal assembly includes at least three groups of filler packings, is arranged in arbitrary two groups of adjacent packing boxs
At least two packing rings between root, the filler packing, packing ring are set on axle sleeve, and the outer diameter of filler packing be more than fill out
Expect the outer diameter of ring；
The peripheral wall of the pump cover is equipped with to the grease cup for injecting butter in the packing ring of side medium, the pump cover
Warter connection is additionally provided on peripheral wall, which is used into the packing ring adjacent with the injection packing ring of butter inject
Cooling water, to prevent butter emulsification thinning.
A kind of stuffing seal of the double envelopes of above-mentioned gas-liquid, the cavity wall of pump cover is against positioned at the filler packing of side medium
On, the filler packing positioned at atmospheric side is contacted with the inner face of gland, and the gland passes through multiple bolts with pump cover
It is fixedly connected, to realize the clamping to filler packing and packing ring.
A kind of stuffing seal of the double envelopes of above-mentioned gas-liquid, the grease cup are obliquely installed to gland direction, institute
Warter connection is stated to be disposed radially.
A kind of stuffing seals of the double envelopes of above-mentioned gas-liquid, the pump cover include annular cover, from annular cover outer wall
Outwardly extending cylindrical boss, extend internally the cyclic annular blocking part for keeping out filler packing from annular cover inner wall, the column
Shape boss and cyclic annular blocking part are respectively positioned on side medium, and the grease cup and warter connection are arranged at the peripheral wall of annular cover
On.
A kind of stuffing seal of the double envelopes of above-mentioned gas-liquid, the seal assembly are filled out including the first filler packing, second
Charging tray root, third filler packing, the first packing ring and the second packing ring, the first filler packing are located at side medium and are against pump
In the cavity wall of lid, the third filler packing is located at atmospheric side and is contacted with the inner face of gland, first packing ring
Between the first filler packing and the second filler packing, second packing ring is located at the second filler packing and third packing box
Between root；
The grease cup communicates after the peripheral wall of pump cover with the first packing ring, and the warter connection passes through the week of pump cover
It is communicated with the second packing ring after wall.
A kind of stuffing seal of the double envelopes of above-mentioned gas-liquid, the seal assembly further includes the 4th filler packing, described
4th filler packing is arranged between the first filler packing and the first packing ring.
The beneficial effects of the utility model：
The stuffing seal of the utility model is economic, practical, can achieve the effect that the double envelopes of gas-liquid, thus this practicality is new
The stuffing seal of type can apply to wider operating mode.Meet environmental requirement, production cost is low.
The utility model is described in further details below with reference to accompanying drawings and embodiments.
Description of the drawings
Fig. 1 is the structural schematic diagram of conventional sealing apparatus in background technology；
Fig. 2 is the structural schematic diagram of the stuffing seal of the double envelopes of gas-liquid；
Fig. 3 is the structural schematic diagram one of packing ring.
Fig. 4 is the structural schematic diagram two of packing ring.
In figure：1. pump cover, 2. filler packings, 3. packing rings, 4. glands, 5. grease cups, 6. warter connections；7.
Axle sleeve；8. axis.
Specific implementation mode
Reach the technological means and effect that predetermined purpose is taken for the utility model is expanded on further, below in conjunction with attached drawing
And embodiment, to specific embodiment of the present utility model, structure feature and its effect, detailed description are as follows.
In order to overcome the problems, such as that existing stuffing seal can not pump volatilization gas, a kind of gas is present embodiments provided
The stuffing seals of the double envelopes of liquid, as shown in Fig. 2, including be placed in 1 inner cavity of pump cover seal assembly, by seal assembly clamp to prevent
The outer wall of the gland 4 that only seal assembly is axially moveable, gland 4 is contacted with the inner wall of pump cover 1, and gland 4
It is fixedly connected with pump cover 1.Specifically, it is against in the cavity wall of pump cover 1 positioned at the filler packing 2 of side medium, positioned at filling out for atmospheric side
Charging tray root 2 is contacted with the inner face of gland 4, and gland 4 is fixedly connected with pump cover 1 by multiple bolts, to realize
Clamping to filler packing 2 and packing ring 3（The structure of packing ring 3 is as shown in Figure 3 and Figure 4）.Filler packing 2 is by graphite packing root
It cuts out and manufactures according to cavity size, graphite packing is mainly by various reinforcing fibers, wire（Steel wire, copper wire, nickel wire, carbon
Fiber, oxidization fiber, organdy）The graphite line of equal enhancings obtains for raw material Seiko braiding, graphite packing on sale on the market, according to
Actual needs selects suitable producer.
Seal assembly includes at least three groups of filler packings 2, at least two be arranged between arbitrary two groups adjacent filler packings 2
Packing ring 3, preferably, seal assembly includes the first filler packing, the second filler packing, third filler packing, the first filler
Ring and the second packing ring, the first filler packing are located at side medium and are against in the cavity wall of pump cover 1, and third filler packing is located at air
It side and being contacted with the inner face of gland 4, the first packing ring is between the first filler packing and the second filler packing, and second
Packing ring is between the second filler packing and third filler packing.
It should be noted that：Give the first packing ring external grease cup 5, butter is injected in grease cup 5 and is squeezed makes packing ring 3
Inside fill up butter, being had the gap in cavity full of after butter in packing ring 3, at packing ring interior will be completely filled with butter, Ke Yiyou
The gas that medium volatilizes is sealed by effect, prevents its leakage, and butter can also play the role of lubricating filler.It gives
On the one hand the external flushing water of second packing ring, flushing water play a part of to lubricate filler, on the other hand can take away a part of sealing
Heat in cavity effectively reduces temperature at axle envelope, prevents butter emulsification thinning, ensures that sealing effect is unaffected.
Filler packing 2, packing ring 3 are set on axle sleeve 7, are arranged with axle sleeve 7 on the outer wall of axis 8, and filler packing 2
Outer diameter is more than the outer diameter of packing ring 3；
The peripheral wall of pump cover 1 is equipped with to the grease cup 5 for injecting butter in the packing ring 3 of side medium, the peripheral wall of pump cover 1
On be additionally provided with warter connection 6, the warter connection 6 be used for injected in the adjacent packing ring 3 of the injection packing ring 3 of butter
Cooling water, to prevent butter emulsification thinning.In actual use, grease cup 5 is obliquely installed to 4 direction of gland, cooling water
Connector 6 is disposed radially.Grease cup 5 communicates after the peripheral wall of pump cover 1 with the first packing ring, and warter connection 6 passes through pump cover 1
Peripheral wall after communicated with the second packing ring.In order to realize stable sealing, the seal assembly of the present embodiment can also include the 4th
Filler packing, the 4th filler packing are arranged between the first filler packing and the first packing ring.
With reference to Fig. 2, the concrete structure of pump cover 1 is described in detail：Pump cover 1 includes annular cover, outside from annular cover outer wall
The cylindrical boss of extension, extend internally the cyclic annular blocking part for keeping out filler packing 2 from annular cover inner wall, cylindrical boss and
Cyclic annular blocking part is respectively positioned on side medium, and grease cup 5 and warter connection 6 are arranged on the peripheral wall of annular cover.
The present embodiment installs packing ring 3 by being pressed into packing box root 2 in the seal cavity of pump cover 1 between filler packing 2
（It is preferred that totally two）, 3 external grease cup 5 of media end packing ring injects butter, and is squeezed into packing ring 3, for sealing volatilization
The gas that goes out simultaneously lubricates filler, and 3 external cooling water of atmospheric side packing ring for reducing seal chamber temperature and lubricates filler.
It, cannot the above content is specific preferred embodiment further detailed description of the utility model is combined
Assert that the specific implementation of the utility model is confined to these explanations.For the ordinary skill of the utility model technical field
For personnel, without departing from the concept of the premise utility, a number of simple deductions or replacements can also be made, should all regard
To belong to the scope of protection of the utility model.
Claims (6)
1. a kind of stuffing seal of the double envelopes of gas-liquid, including it is placed in pump cover（1）The seal assembly of inner cavity clamps seal assembly
With the gland for preventing seal assembly to be axially moveable（4）, the gland（4）Outer wall and pump cover（1）Inner wall connect
It touches, and gland（4）With pump cover（1）It is fixedly connected, which is characterized in that the seal assembly includes at least three groups of filler packings
（2）, be arranged in arbitrary two groups adjacent filler packings（2）Between at least two packing rings（3）, the filler packing（2）, packing ring
（3）It is set in axle sleeve（7）On, and filler packing（2）Outer diameter be more than packing ring（3）Outer diameter；
The pump cover（1）Peripheral wall be equipped with to close to side medium packing ring（3）The grease cup of interior injection butter（5）, described
Pump cover（1）Peripheral wall on be additionally provided with warter connection（6）, the warter connection（6）For to injection butter packing ring（3）
Adjacent packing ring（3）Interior injection cooling water, to prevent butter emulsification thinning.
2. the stuffing seal of the double envelopes of gas-liquid as described in claim 1, which is characterized in that be located at the filler packing of side medium
（2）It is against pump cover（1）Cavity wall on, be located at atmospheric side filler packing（2）With gland（4）Inner face contact, it is described
Gland（4）With pump cover（1）It is fixedly connected by multiple bolts, to realize to filler packing（2）And packing ring（3）Folder
Tightly.
3. the stuffing seal of the double envelopes of gas-liquid as claimed in claim 1 or 2, which is characterized in that the grease cup（5）To filling out
Expect gland（4）Direction is obliquely installed, the warter connection（6）It is disposed radially.
4. the stuffing seal of the double envelopes of gas-liquid as described in claim 1, which is characterized in that the pump cover（1）Including ring-type
Lid extends internally from the outwardly extending cylindrical boss of annular cover outer wall, from annular cover inner wall for keeping out filler packing
（2）Cyclic annular blocking part, the cylindrical boss and cyclic annular blocking part are respectively positioned on side medium, the grease cup（5）It is connect with cooling water
Head（6）It is arranged on the peripheral wall of annular cover.
5. the stuffing seal of the double envelopes of gas-liquid as described in claim 1, which is characterized in that the seal assembly includes first
Filler packing, the second filler packing, third filler packing, the first packing ring and the second packing ring, the first filler packing position
In side medium and it is against pump cover（1）Cavity wall on, the third filler packing is located at atmospheric side and and gland（4）Inner end
Face contacts, and first packing ring is positioned at the first filler packing and the second filler packing between, and second packing ring is positioned at the
Between two filler packings and third filler packing；
The grease cup（5）Across pump cover（1）Peripheral wall after communicated with the first packing ring, the warter connection（6）Across pump
Lid（1）Peripheral wall after communicated with the second packing ring.
6. the stuffing seals of the double envelopes of gas-liquid as claimed in claim 5, which is characterized in that the seal assembly further includes the
Four filler packings, the 4th filler packing are arranged between the first filler packing and the first packing ring.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820385235.0U CN207989385U (en) | 2018-03-21 | 2018-03-21 | A kind of stuffing seal of the double envelopes of gas-liquid |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820385235.0U CN207989385U (en) | 2018-03-21 | 2018-03-21 | A kind of stuffing seal of the double envelopes of gas-liquid |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN207989385U true CN207989385U (en) | 2018-10-19 |
Family
ID=63828621
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201820385235.0U Active CN207989385U (en) | 2018-03-21 | 2018-03-21 | A kind of stuffing seal of the double envelopes of gas-liquid |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN207989385U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114777844A (en) * | 2022-04-28 | 2022-07-22 | 陈松涛 | Fixed bed gasification furnace detection device and fixed bed gasification furnace detection method |
-
2018
- 2018-03-21 CN CN201820385235.0U patent/CN207989385U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114777844A (en) * | 2022-04-28 | 2022-07-22 | 陈松涛 | Fixed bed gasification furnace detection device and fixed bed gasification furnace detection method |
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