CN210859820U - Integrated novel safety mechanical seal - Google Patents
Integrated novel safety mechanical seal Download PDFInfo
- Publication number
- CN210859820U CN210859820U CN201921828778.6U CN201921828778U CN210859820U CN 210859820 U CN210859820 U CN 210859820U CN 201921828778 U CN201921828778 U CN 201921828778U CN 210859820 U CN210859820 U CN 210859820U
- Authority
- CN
- China
- Prior art keywords
- ring
- shaft sleeve
- gland
- secondary seal
- static ring
- 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.)
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- 210000004907 gland Anatomy 0.000 claims abstract description 31
- 238000007789 sealing Methods 0.000 claims abstract description 27
- 230000005540 biological transmission Effects 0.000 claims abstract description 15
- 238000003756 stirring Methods 0.000 claims abstract description 15
- 230000003068 static effect Effects 0.000 claims description 46
- 239000000498 cooling water Substances 0.000 claims description 17
- 230000006835 compression Effects 0.000 claims description 4
- 238000007906 compression Methods 0.000 claims description 4
- 238000004806 packaging method and process Methods 0.000 claims 4
- 239000000463 material Substances 0.000 abstract description 8
- 238000002156 mixing Methods 0.000 abstract description 5
- 238000006243 chemical reaction Methods 0.000 description 8
- 238000003825 pressing Methods 0.000 description 6
- 239000012530 fluid Substances 0.000 description 2
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000001816 cooling Methods 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000004880 explosion Methods 0.000 description 1
- 238000012423 maintenance Methods 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 239000002574 poison Substances 0.000 description 1
- 231100000614 poison Toxicity 0.000 description 1
- 230000002265 prevention Effects 0.000 description 1
- 230000002035 prolonged effect Effects 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
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- Sealing Devices (AREA)
- Mechanical Sealing (AREA)
Abstract
The utility model relates to the technical field of mechanical seal, in particular to a novel container type safe mechanical seal, which comprises a base and a transmission shaft sleeve fixed outside a stirring shaft, wherein the outside of the transmission shaft sleeve is provided with a gland, the lower end of the gland is provided with a secondary sealing component, and the lower side of the transmission shaft sleeve is provided with a primary sealing component; the utility model discloses simple to operate can be applicable to the coaxial double speed mixing system of canned type, provides a sealed chamber of preventing leaking, under the condition that the machine sealed became invalid, also can do reserve sealed going to use, has improved factor of safety, has guaranteed that the material of sealed intracavity portion can not leak out.
Description
Technical Field
The utility model relates to a mechanical seal technical field, concretely relates to novel safe mechanical seal of collection dress formula.
Background
The mechanical seal is a device for preventing fluid leakage, which is formed by at least one pair of end faces perpendicular to the rotation axis, and the end faces are kept in fit and relatively slide under the action of fluid pressure and the elastic force (or magnetic force) of a compensation mechanism and the cooperation of an auxiliary seal. The existing mechanical seal is generally one-time seal, and in the chemical industry, particularly in the process of material reaction, the breakage of the mechanical seal is very dangerous, easily poisons people, and can cause problems of explosion and the like. Therefore, the sealing performance and the safety of the mechanical seal are improved, the material is ensured not to be leaked, and the problem which needs to be solved urgently is solved.
SUMMERY OF THE UTILITY MODEL
In order to solve the defects in the technical problem, the utility model aims to provide a: the utility model provides a novel safe mechanical seal of collection dress formula, simple to operate provides a sealed chamber of preventing leaking, under the condition that the machine seals the inefficacy, also can do reserve sealed use, has improved factor of safety, has guaranteed that the material of sealed intracavity portion can not leak out.
The utility model discloses a solve the technical scheme that its technical problem adopted and do:
novel safe mechanical seal of collection dress formula, including the base with fix the driving shaft cover in the (mixing) shaft outside, the outside of driving shaft cover sets up the gland, the lower extreme secondary seal subassembly of gland, the downside of driving shaft cover sets up primary seal subassembly:
the primary sealing assembly comprises a double-end-face moving ring fixed at the lower end of the transmission shaft sleeve, the lower part of the double-end-face moving ring is respectively provided with an inner static ring and an outer static ring from inside to outside, the lower part of the outer static ring is provided with an outer static ring base, the lower parts of the outer static ring base and the inner static ring are provided with double-end-face sealing springs, the double-end-face sealing springs are fixed at the upper part of the base, and the inner side of the inner static ring is provided with a static ring shaft sleeve;
the secondary seal assembly comprises a secondary seal machine body fixed on the outer side of the transmission shaft sleeve and a secondary seal static ring fixed at the lower end of the gland, a secondary seal moving ring is arranged at the lower end of the secondary seal static ring, a secondary seal spring is arranged at the lower end of the secondary seal moving ring, and the secondary seal spring is fixed at the upper end of the secondary seal machine body.
Preferably, the driving shaft sleeve is fastened on the outer side of the stirring shaft through a locking ring.
Preferably, the double-ended rotating ring is at the lower end of the driving sleeve through a pin.
Preferably, a wedge-shaped ring is arranged at a gap between the double-end-face moving ring and the stirring shaft, an O-shaped ring is arranged between the transmission shaft sleeve and the stirring shaft, and an inner static ring wedge-shaped ring is arranged between the inner static ring and the static ring shaft sleeve.
Preferably, the secondary seal machine body is fixed on the outer side of the transmission shaft sleeve through an anti-rotation screw, and the secondary seal static ring is fixed at the lower end of the gland through a gland compression inner hexagonal screw.
Preferably, the base and the gland are locked through bolts, a cooling water chamber is further arranged between the base and the gland, an anti-leakage cavity is formed among the base, the gland and the cooling water chamber, and a cooling water inlet is formed in the outer side of the cooling water chamber.
Compared with the prior art, the utility model discloses following beneficial effect has:
the utility model discloses simple to operate can be applicable to the coaxial double speed mixing system of canned type, provides a sealed chamber of preventing leaking, under the condition that the machine sealed became invalid, also can do reserve sealed going to use, has improved factor of safety, has guaranteed that the material of sealed intracavity portion can not leak out. And can ensure, at the chemical reaction process, maintain again under the condition of definite safety, can make the temperature drop through filling water in to the cooling water chamber when the temperature is too high, prolong the life of machine seal, in addition, can add the surge tank and make the equilibrium intracavity keep the constant pressure, guarantee also can use in the environment that the pressure ratio is great, can prolong the life of machine seal, just can be applicable to most chemical reaction through the material of changing the axle sleeve clamp plate under the stronger condition of corrosivity.
Drawings
Fig. 1 is a schematic structural diagram of the present invention.
In the figure: 1. locking a ring; 2. a driving shaft sleeve; 3. pressing a plate; 4. a gland; 5. secondary sealing of the static ring; 6. a stationary ring gland; 7. the gland compresses the inner hexagonal screw; 8. secondary sealing movable ring; 9. a secondary sealing spring; 10. secondarily sealing the machine body; 11. an anti-rotation screw; 12. a pin; 13. a double-end-face rotating ring; 14. an outer stationary ring base; 15. an outer stationary ring; 16. an inner stationary ring; 17. an inner stationary ring wedge ring; 18. a stationary ring shaft sleeve; 19. a shaft sleeve pressing plate; 20. a pressing plate screw; 21. a base; 22. connecting screw holes; 23. a double-ended face seal spring; 24. a cooling water inlet; 25. a balance oil chamber; 26. a wedge ring; 27. a leakage prevention cavity; 28. a cooling water chamber; 29. an O-shaped ring; 30. and (4) bolts.
Detailed Description
The embodiments of the present invention will be further described with reference to the accompanying drawings:
example 1
As shown in fig. 1, the novel safe mechanical seal of collection dress formula, include base 21 and fix at the driving shaft sleeve 2 in the (mixing) shaft outside, it is concrete, driving shaft sleeve 2 passes through locking ring 1 fastening in the outside of (mixing) shaft, and driving shaft sleeve 2's the outside sets up gland 4, gland 4's lower extreme secondary seal subassembly, and driving shaft sleeve 2's downside sets up primary seal subassembly:
the primary sealing assembly comprises a double-end-face movable ring 13 fixed at the lower end of a transmission shaft sleeve 2 through a pin 12, the lower part of the double-end-face movable ring 13 is provided with an inner static ring 16 and an outer static ring 15 from inside to outside respectively, a balance oil cavity 25 is formed between the outer static ring 15, the inner static ring 16 and the double-end-face movable ring 13, the lower part of the outer static ring 15 is provided with an outer static ring base 14, the lower parts of the outer static ring base 14 and the inner static ring 16 are provided with a double-end-face mechanical seal spring 23, the double-end-face mechanical seal spring 23 is fixed at the upper part of the base 21, the inner side of the inner static ring 16 is provided with a static ring shaft sleeve 18, the static ring shaft sleeve 18 is fixed through a shaft sleeve pressing plate 19 and a pressing plate screw 20, and particularly, the shaft sleeve pressing plate 19 is positioned at the;
the secondary seal subassembly includes through preventing that it fixes at the secondary seal organism 10 in the transmission shaft sleeve 2 outside and compresses tightly the quiet ring 5 of secondary seal at the 4 lower extremes of gland through gland compression hexagon socket head cap screw 7, gland 4 is fixed through clamp plate 3 and bolt 30, and the lower extreme of the quiet ring 5 of secondary seal sets up secondary seal rotating ring 8, the lower extreme of secondary seal rotating ring 8 sets up secondary seal spring 9, secondary seal spring 9 fixes the upper end at secondary seal organism 10.
Wherein, a wedge-shaped ring 26 is arranged at the gap between the double-end-face moving ring 13 and the stirring shaft, an O-shaped ring 29 is arranged between the driving shaft sleeve 2 and the stirring shaft, and an inner static ring wedge-shaped ring 17 is arranged between the inner static ring 16 and the static ring shaft sleeve 18.
In addition, base 21 and gland 4 lock through bolt 30, still are provided with cooling water chamber 28 between base 21 and the gland 4, form between base 21, gland 4 and the cooling water chamber 28 and prevent letting out chamber 27, the outside of cooling water chamber 28 sets up the cooling water inlet, can supply the cooling use.
The utility model discloses a concrete use:
when the stirring shaft sealing device is used, the locking ring 1 clamps the stirring shaft through the clamping screw to enable the end faces to be tightly attached to block gas leakage in the reaction container, meanwhile, the wedge-shaped ring 26 and the O-shaped ring 29 can seal a gap between the reaction container and the stirring shaft, so that the reaction container forms a closed space, even if one of the two sealing parts fails, the other sealing part can also play a role in sealing, meanwhile, when the transmission shaft sleeve 2 rotates, the secondary sealing machine body 10 can be driven to rotate, and further the secondary sealing rotating ring 8 is driven to rotate along with the stirring shaft, because the secondary sealing static ring 5 is fixed with the static ring gland 6 through the gland compression inner hexagonal screw 7, the secondary sealing static ring 5 does not rotate, and the secondary sealing static ring 5 and the secondary sealing rotating ring 8 are compensated through the elastic force of the secondary sealing spring 9 to enable the end faces to be tightly attached to. When the contact end face that outer quiet ring 15 and bi-polar face rotating ring 13 formed became invalid, the contact end face that interior quiet ring 16 and bi-polar face rotating ring 13 formed still can form sealedly, guarantees normal production, and when interior quiet ring 16, outer quiet ring 15 became invalid simultaneously, the secondary seal subassembly in the chamber 27 that prevents leaking can play a role, makes the inside material of preventing leaking the chamber 27 can not leak out. The sealing device can ensure that the maintenance is carried out again under the condition of ensuring the safety in the chemical reaction process. When the temperature is too high, water is filled into the cooling water chamber 28 through the cooling water inlet 24, so that the temperature is reduced, and the service life is prolonged. In addition, this device simple to operate as long as the screw hole of connecting screw hole 22 is fastened with the screw hole on the mounting flange, the tight screw of clamp ring 1 of clamp, unclamp clamp plate 3, just can be suitable for the great environment of pressure ratio, in addition, can add the surge tank and make in the balanced oil pocket 25 keep the constant pressure, prolong the life of machine seal, can be applicable to most chemical reaction through the material of changing axle sleeve clamp plate 19 under the stronger condition of corrosivity, and application scope is wider. The driving shaft sleeve 2 drives the double-end-face movable ring 13 to rotate along with the rotation of the stirring shaft through the pin 12, and the end face of the double-end-face movable ring 13, the inner static ring 16 and the outer static ring 15 which are contacted is compensated through the elasticity of the double-end-face sealing spring 23
In the description of the present invention, the terms "inside", "outside", "longitudinal", "lateral", "up", "down", "top", "bottom", etc. indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings, and are only for convenience of description of the present invention rather than requiring the present invention to be constructed and operated in a specific orientation, and thus should not be construed as limiting the present invention.
Claims (6)
1. A packaging type novel safe mechanical seal comprises a base (21) and a transmission shaft sleeve (2) fixed on the outer side of a stirring shaft, wherein a gland (4) is arranged on the outer side of the transmission shaft sleeve (2), a secondary seal assembly is arranged at the lower end of the gland (4), a primary seal assembly is arranged on the lower side of the transmission shaft sleeve (2),
the primary sealing assembly comprises a double-end-face moving ring (13) fixed at the lower end of the transmission shaft sleeve (2), the lower part of the double-end-face moving ring (13) is respectively provided with an inner static ring (16) and an outer static ring (15) from inside to outside, the lower part of the outer static ring (15) is provided with an outer static ring base (14), the lower parts of the outer static ring base (14) and the inner static ring (16) are provided with a double-end-face mechanical sealing spring (23), the double-end-face mechanical sealing spring (23) is fixed at the upper part of a base (21), and the inner side of the inner static ring (16) is provided with a static ring shaft sleeve (18);
the secondary seal assembly comprises a secondary seal machine body (10) fixed on the outer side of the transmission shaft sleeve (2) and a secondary seal static ring (5) fixed at the lower end of the gland (4), a secondary seal moving ring (8) is arranged at the lower end of the secondary seal static ring (5), a secondary seal spring (9) is arranged at the lower end of the secondary seal moving ring (8), and the secondary seal spring (9) is fixed at the upper end of the secondary seal machine body (10).
2. A container type new type safety mechanical seal according to claim 1, characterized in that the driving shaft sleeve (2) is fastened on the outside of the stirring shaft by a locking ring (1).
3. A unit load type new safety mechanical seal according to claim 1, characterized in that the double-ended moving ring (13) is at the lower end of the driving sleeve (2) through the pin (12).
4. The packaging type novel safe mechanical seal according to claim 1, wherein a wedge-shaped ring (26) is arranged at a gap between the double-end-face moving ring (13) and the stirring shaft, an O-shaped ring (29) is arranged between the driving shaft sleeve (2) and the stirring shaft, and an inner stationary ring wedge-shaped ring (17) is arranged between the inner stationary ring (16) and the stationary ring shaft sleeve (18).
5. The packaging type novel safe mechanical seal according to claim 1, wherein the secondary seal body (10) is fixed on the outer side of the driving shaft sleeve (2) through an anti-rotation screw (11), and the secondary seal static ring (5) is fixed on the lower end of the gland (4) through a gland compression inner hexagonal screw (7).
6. The packaging type novel safe mechanical seal according to claim 1, wherein the base (21) and the gland (4) are locked by bolts (30), a cooling water chamber (28) is further arranged between the base (21) and the gland (4), a leakage-proof cavity (27) is formed among the base (21), the gland (4) and the cooling water chamber (28), and a cooling water inlet is arranged on the outer side of the cooling water chamber (28).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921828778.6U CN210859820U (en) | 2019-10-25 | 2019-10-25 | Integrated novel safety mechanical seal |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921828778.6U CN210859820U (en) | 2019-10-25 | 2019-10-25 | Integrated novel safety mechanical seal |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN210859820U true CN210859820U (en) | 2020-06-26 |
Family
ID=71292723
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201921828778.6U Active CN210859820U (en) | 2019-10-25 | 2019-10-25 | Integrated novel safety mechanical seal |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN210859820U (en) |
-
2019
- 2019-10-25 CN CN201921828778.6U patent/CN210859820U/en active Active
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| PE01 | Entry into force of the registration of the contract for pledge of patent right | ||
| PE01 | Entry into force of the registration of the contract for pledge of patent right |
Denomination of utility model: Container type new safety mechanical seal Granted publication date: 20200626 Pledgee: Zichuan Zibo rural commercial bank Limited by Share Ltd. Pledgor: Zibo nuofende Chemical Equipment Technology Co.,Ltd. Registration number: Y2024980001686 |