CN204572544U - For containing the counnter attack press pump dry gas seals in suspended solid medium - Google Patents
For containing the counnter attack press pump dry gas seals in suspended solid medium Download PDFInfo
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- CN204572544U CN204572544U CN201520016836.0U CN201520016836U CN204572544U CN 204572544 U CN204572544 U CN 204572544U CN 201520016836 U CN201520016836 U CN 201520016836U CN 204572544 U CN204572544 U CN 204572544U
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- axle sleeve
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Abstract
The utility model discloses a kind of for containing the counnter attack press pump dry gas seals in suspended solid medium, comprise the side medium be sleeved on axle sleeve and seal and atmospheric side sealing; Side medium sealing comprises the uncompensated ring be arranged on successively on axle sleeve, compensated loop, throw-out collar, spring, compensated ring adaptor, and compensated ring adaptor external part is arranged on compensated loop, throw-out collar outer side surface, and compensated ring adaptor is sleeved on seal chamber; Atmospheric side seals to comprise and is arranged on the uncompensated ring on end cap and the compensated loop on axle sleeve, throw-out collar, spring successively, and uncompensated ring is connected with end cap, and compensated loop, throw-out collar, spring are arranged in drive sleeve successively; Seal chamber is fixedly connected with end cap.The utility model feature is: side medium sealing adopts state type design, make at the part of granule medium high speed running minimum, particle is made to be difficult to enter sealing surface, avoid the wearing and tearing of particle to sealing, there is the ability of bearing back-pressure, ensure that processing medium can not leak, seal durable more.
Description
Technical field
The utility model relates to mechanical seal field, is specifically related to a kind of for containing the counnter attack press pump dry gas seals in suspended solid medium.
Background technique
Along with oil, the industry such as petrochemical industry is towards pollution-free, long period, low energy consumption, the future developments such as high benefit, require that the mechanical seal of centrifugal pump realizes the zero leakage of sealing medium, pollution-free, long lifetime, and operation and maintenance cost is low, particularly oil, in petrochemical industry, pumping fluid has inflammable mostly, explosive, severe toxicity, the feature such as seriously polluted, common contacting mechanical seal is difficult to reach above-mentioned requirements, pump dry gas seals adopts the thought of " with sealing gland gas " or " with sealing gland liquid " to realize zero effusion and zero leakage of processing medium, increasingly mature along with dry gas seals technology, its application area is also more and more broader, but the medium purity requirement of general dry gas seals to conveying is higher, guarantee forms stable air film, anchor ring is opened and is realized non-contact running, but, the oil of reality, in petrochemical industry, the medium of a lot of centrifugal pump can not reach very high purity, often containing solid suspended particle, simultaneously poisonous, inflammable and explosive, and pumped medium pressure is also unstable, existing pump dry gas sealing device major part all can not adapt to the danger medium operating mode containing suspended solid, also seldom back-pressure situation is considered, it is all very short that current on-the-spot seal arrangement runs operating life under this harsh working condition, have a strong impact on working efficiency, improve user cost.
Model utility content
The purpose of this utility model is to overcome above-mentioned not enough problem, provides a kind of for containing the counnter attack press pump dry gas seals in suspended solid medium.
The technological scheme that the utility model is adopted for achieving the above object is: for containing the counnter attack press pump dry gas seals in suspended solid medium, comprise the side medium be sleeved on axle sleeve and seal and atmospheric side sealing, described side medium sealing comprises the side medium uncompensated ring be arranged on successively on axle sleeve, side medium compensated loop, side medium throw-out collar, side medium spring, compensated ring adaptor, under state of rest, the sealing surface of described side medium uncompensated ring and side medium compensated loop fits, described side medium uncompensated ring is connected with axle sleeve, and Sealing is installed therebetween, described side medium spring one end and side medium throw-out collar are fitted, the other end is arranged in compensated ring adaptor, described compensated ring adaptor external part is arranged on side medium compensated loop, side medium throw-out collar outer side surface, and between three, Sealing is installed, described compensated ring adaptor is sleeved on seal chamber, and Sealing is installed therebetween, described atmospheric side sealing comprises the atmospheric side uncompensated ring be arranged on successively on end cap, and the atmospheric side compensated loop be arranged in drive sleeve, atmospheric side throw-out collar, atmospheric side spring, under state of rest, the sealing surface of described atmospheric side uncompensated ring and atmospheric side compensated loop fits, described atmospheric side uncompensated ring is connected with end cap, and Sealing is installed therebetween, described atmospheric side compensated loop, atmospheric side throw-out collar, atmospheric side spring is arranged in drive sleeve successively, and atmospheric side compensated loop, atmospheric side throw-out collar, between drive sleeve three, Sealing is installed, described drive sleeve is fixed on axle sleeve, described seal chamber is fixedly connected with end cap.
Sealing between described side medium uncompensated ring and axle sleeve is O type circle, wherein mounting O-shaped rings one between side medium uncompensated ring end face and axle sleeve, mounting O-shaped rings two between side medium uncompensated ring inner side surface and axle sleeve; Sealing between described side medium compensated loop, side medium throw-out collar, compensated ring adaptor three is O type circle three, and the Sealing between described compensated ring adaptor and seal chamber is O type circle four.
Between described side medium uncompensated ring and axle sleeve, driving pin is installed.
Stop pin one is installed between described compensated ring adaptor and seal chamber.
Described drive sleeve is fixed on axle sleeve by socket head screw.
Between described atmospheric side uncompensated ring and end cap, stop pin two is installed.
Driving ring is installed in the atmospheric side end of described axle sleeve, and described driving ring is connected with end cap by pallet.
Feature of the present utility model is: side medium sealing adopts state type design, make at the part of granule medium high speed running minimum, particle is made to be difficult to enter sealing surface, avoid the wearing and tearing of particle to sealing, there is the ability of bearing back-pressure, ensure that processing medium can not leak, seal durable more.
Accompanying drawing explanation
Fig. 1 is structural representation of the present utility model.
Wherein: 1, axle sleeve 2, driving pin 3, O type circle 1, O type circle 25, side medium uncompensated ring 6, side medium compensated loop 7, O type circle 38, side medium throw-out collar 9, side medium spring 10, O type circle 4 11, compensated ring adaptor 12, stop pin 1, seal chamber 14, socket head screw 15, drive sleeve 16, atmospheric side spring 17, atmospheric side throw-out collar 18, atmospheric side compensated loop 19, atmospheric side uncompensated ring 20, stop pin 2 21, end cap 22, pallet 23, driving ring.
Embodiment
As shown in Figure 1, the utility model is for containing the counnter attack press pump dry gas seals in suspended solid medium, comprises the side medium be sleeved on axle sleeve 1 and seals and atmospheric side sealing, described side medium sealing comprises the side medium uncompensated ring 5 be arranged on successively on axle sleeve 1, side medium compensated loop 6, side medium throw-out collar 8, side medium spring 9, compensated ring adaptor 11, under state of rest, described side medium uncompensated ring 5 fits with the sealing surface of side medium compensated loop 6, between described side medium uncompensated ring 5 and axle sleeve 1, driving pin 2 is installed, and Sealing is installed therebetween, Sealing preferred O type circle, wherein mounting O-shaped rings 1 between side medium uncompensated ring 5 end face and axle sleeve 1, mounting O-shaped rings 24 between side medium uncompensated ring 5 inner side surface and axle sleeve 1, described side medium spring 9 one end and side medium throw-out collar 8 are fitted, the other end is arranged in compensated ring adaptor 11, described compensated ring adaptor 11 external part is arranged on side medium compensated loop 6, side medium throw-out collar 8 outer side surface, and between three, Sealing is installed, Sealing preferred O type circle 37, described compensated ring adaptor 11 is sleeved on seal chamber 13, and Sealing is installed therebetween, Sealing preferred O type circle 4 10, between described compensated ring adaptor 11 and seal chamber 13, stop pin 1 is installed, described atmospheric side seals to comprise and is arranged on the atmospheric side uncompensated ring 19 on end cap 21 and the atmospheric side compensated loop 18 in drive sleeve 15 successively, atmospheric side throw-out collar 17, atmospheric side spring 16, under state of rest, described atmospheric side uncompensated ring 19 fits with the sealing surface of atmospheric side compensated loop 18, described atmospheric side uncompensated ring 19 is connected with end cap 21, and Sealing is installed therebetween, between described atmospheric side uncompensated ring 5 and end cap 21, stop pin 2 20 is installed, described end cap 2 offers cushion gas entrance, described atmospheric side compensated loop 18, atmospheric side throw-out collar 17, atmospheric side spring 16 is arranged in drive sleeve 15 successively, and atmospheric side compensated loop 18, atmospheric side throw-out collar 17, between drive sleeve 15 three, Sealing is installed, described drive sleeve 15 is fixed on axle sleeve 1 by socket head screw 14, described atmospheric side Sealing is O type circle all preferably, described seal chamber 13 is fixedly connected with by attachment screw with end cap 21, driving ring 23 is installed in the atmospheric side end of described axle sleeve 1, and described driving ring 23 is connected with end cap 21 by pallet 22, and described pallet 22 is fixedly connected with driving ring 23, end cap 21 respectively by screw.
The sealing of the utility model side medium adopts state type design, can make at the part of granule medium high speed running minimum and profile is regular, avoid the wearing and tearing of particle to sealing, and before startup centrifugal pump, first be filled with cushion gas, high by the pressure medium sealed in the pressure ratio Seal cage of cushion gas, cushion gas nearly 75% enters air by atmospheric side sealing, medium is entered on a small quantity by side medium, ensure that processing medium can not to atmospheric air leakage, side medium uncompensated ring 5 can adopt inner ring cutting technology, granule medium is in outside sealing surface, the effect of centrifugal action makes particle more be difficult to enter sealing surface, and pump gas flow is larger from inside to outside, anchor ring is easier to open, decrease dry grinding and gasification impact, make to seal more durable, the utility model also can bear back-pressure, under normal circumstances, cushion gas pressure is higher than by the pressure medium sealed, left side acts on the position of the O type circle 1 after side medium uncompensated ring 5, right side then acts on part O type circle 37 and compensated ring adaptor 11 place, O type circle 24 plays a supportive role, so side medium uncompensated ring 5 can not be pushed out, if raised by the processing medium pressure sealed, higher than the pressure of cushion gas, the position of the O type circle 1 after side medium uncompensated ring 5 is still acted on then, right side then acts on O type circle 4 10 place, compensated ring adaptor 11 moves on O type circle 4 10, so side medium uncompensated ring 5 still can not be pushed out, effectively prevent by the release of the processing medium sealed.
The above; be only the utility model preferably embodiment; but protection domain of the present utility model is not limited thereto; anyly be familiar with those skilled in the art in the technical scope that the utility model discloses; be equal to according to the technical solution of the utility model and inventive concept thereof and replace or change, all should be encompassed within protection domain of the present utility model.
Claims (7)
1., for containing the counnter attack press pump dry gas seals in suspended solid medium, it is characterized in that: comprise the side medium be sleeved on axle sleeve (1) and seal and atmospheric side sealing, described side medium sealing comprises the side medium uncompensated ring (5) be arranged on successively on axle sleeve (1), side medium compensated loop (6), side medium throw-out collar (8), side medium spring (9), compensated ring adaptor (11), under state of rest, described side medium uncompensated ring (5) fits with the sealing surface of side medium compensated loop (6), described side medium uncompensated ring (5) is connected with axle sleeve (1), and Sealing is installed therebetween, described side medium spring (9) one end and side medium throw-out collar (8) are fitted, the other end is arranged in compensated ring adaptor (11), described compensated ring adaptor (11) external part is arranged on side medium compensated loop (6), side medium throw-out collar (7) outer side surface, and between three, Sealing is installed, described compensated ring adaptor (11) is sleeved on seal chamber (13), and Sealing is installed therebetween, described atmospheric side seals to comprise and is arranged on the atmospheric side uncompensated ring (19) on end cap (21) and the atmospheric side compensated loop (18) in drive sleeve (15) successively, atmospheric side throw-out collar (17), atmospheric side spring (16), under state of rest, described atmospheric side uncompensated ring (19) fits with the sealing surface of atmospheric side compensated loop (18), described atmospheric side uncompensated ring (19) is connected with end cap (21), and Sealing is installed therebetween, described atmospheric side compensated loop (18), atmospheric side throw-out collar (17), atmospheric side spring (16) is arranged in drive sleeve (15) successively, and atmospheric side compensated loop (18), atmospheric side throw-out collar (17), between drive sleeve (15) three, Sealing is installed, described drive sleeve (15) is fixed on axle sleeve (1), described seal chamber (13) is fixedly connected with end cap (21).
2. as claimed in claim 1 for containing the counnter attack press pump dry gas seals in suspended solid medium, it is characterized in that: described side medium uncompensated ring (5) and axle sleeve 1) between Sealing be O type circle, wherein mounting O-shaped rings one (3) between side medium uncompensated ring (5) end face and axle sleeve (1), mounting O-shaped rings two (4) between side medium uncompensated ring (5) inner side surface and axle sleeve (1); Sealing between described side medium compensated loop (6), side medium throw-out collar (8), compensated ring adaptor (11) three is O type circle three (7), and the Sealing between described compensated ring adaptor (11) and seal chamber (13) is O type circle four (10).
3. described in claim 1 or 2 for containing the counnter attack press pump dry gas seals in suspended solid medium, it is characterized in that: between described side medium uncompensated ring (5) and axle sleeve (1), driving pin (2) is installed.
4. described in claim 1 or 2 for containing the counnter attack press pump dry gas seals in suspended solid medium, it is characterized in that: stop pin one (12) is installed between described compensated ring adaptor (11) and seal chamber (13).
5. described in claim 1 or 2 for containing the counnter attack press pump dry gas seals in suspended solid medium, it is characterized in that: described drive sleeve (15) is fixed on axle sleeve (1) by socket head screw (14).
6. described in claim 1 or 2 for containing the counnter attack press pump dry gas seals in suspended solid medium, it is characterized in that: between described atmospheric side uncompensated ring (5) and end cap (21), stop pin two (20) is installed.
7. described in claim 1 or 2 for containing the counnter attack press pump dry gas seals in suspended solid medium, it is characterized in that: driving ring (23) is installed in the atmospheric side end of described axle sleeve (1), and described driving ring (23) is connected with end cap (21) by pallet (22).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520016836.0U CN204572544U (en) | 2015-01-12 | 2015-01-12 | For containing the counnter attack press pump dry gas seals in suspended solid medium |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520016836.0U CN204572544U (en) | 2015-01-12 | 2015-01-12 | For containing the counnter attack press pump dry gas seals in suspended solid medium |
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| Publication Number | Publication Date |
|---|---|
| CN204572544U true CN204572544U (en) | 2015-08-19 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201520016836.0U Active CN204572544U (en) | 2015-01-12 | 2015-01-12 | For containing the counnter attack press pump dry gas seals in suspended solid medium |
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| CN (1) | CN204572544U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104564788A (en) * | 2015-01-12 | 2015-04-29 | 大连华阳密封股份有限公司 | Dry gas seal for back pressure prevention pump used in medium which contains suspended solids |
-
2015
- 2015-01-12 CN CN201520016836.0U patent/CN204572544U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104564788A (en) * | 2015-01-12 | 2015-04-29 | 大连华阳密封股份有限公司 | Dry gas seal for back pressure prevention pump used in medium which contains suspended solids |
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