CN213017714U - Mechanical seal with impeller - Google Patents
Mechanical seal with impeller Download PDFInfo
- Publication number
- CN213017714U CN213017714U CN202021789117.XU CN202021789117U CN213017714U CN 213017714 U CN213017714 U CN 213017714U CN 202021789117 U CN202021789117 U CN 202021789117U CN 213017714 U CN213017714 U CN 213017714U
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- Prior art keywords
- ring
- opening
- impeller
- seal
- mechanical seal
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- 230000007704 transition Effects 0.000 claims abstract description 18
- 230000005540 biological transmission Effects 0.000 claims description 11
- 238000007789 sealing Methods 0.000 claims description 9
- 230000002093 peripheral effect Effects 0.000 claims description 6
- 230000003068 static effect Effects 0.000 claims description 5
- 238000001816 cooling Methods 0.000 abstract description 10
- 239000000110 cooling liquid Substances 0.000 abstract description 7
- 239000002826 coolant Substances 0.000 description 10
- 239000007788 liquid Substances 0.000 description 9
- 238000002425 crystallisation Methods 0.000 description 3
- 230000008025 crystallization Effects 0.000 description 3
- 239000012809 cooling fluid Substances 0.000 description 2
- 238000009434 installation Methods 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 238000007792 addition Methods 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 239000012530 fluid Substances 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000003756 stirring Methods 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
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- Mechanical Sealing (AREA)
Abstract
The utility model provides a mechanical seal with impeller belongs to mechanical seal technical field, include: seal receptacle, impeller, first rotating ring, second rotating ring, first quiet ring and the quiet ring of second, be provided with first opening, transition chamber and the second opening that communicates in proper order in the seal receptacle, first opening with the second opening is located respectively the both ends of seal receptacle, first quiet ring with the quiet ring of second respectively with first opening and the second opening is connected, the impeller sets up in the transition chamber, first rotating ring with first quiet ring is connected, the second rotating ring with the quiet ring of second is connected. The utility model has the advantages that: when cooling is carried out on the mechanical seal through the cooling liquid, the cooling liquid can be distributed more uniformly, and therefore cooling efficiency is improved.
Description
Technical Field
The utility model belongs to the technical field of mechanical seal, a mechanical seal with impeller is related to.
Background
The conventional mechanical seal generally comprises a large number of components which are in a loose-packed mode, in other words, the components contained in the mechanical seal are separated from each other before being used, and after being purchased by a user, the separated components are generally required to be installed between the pump shaft and the pump casing one by one on site, namely, the mechanical seal is assembled, but the mechanical seal assembled on site often causes installation troubles due to the large number of the components, and in severe cases, installation errors occur, so that fluid medium leaks, and the mechanical seal loses the sealing function.
In order to solve the above technical problems, some manufacturers have designed a cartridge mechanical seal, which is an assembly of all the parts in the original mechanical seal, and can be assembled and disassembled as needed.
When the container type mechanical seal works, heat and crystallization can be generated, so that circulating cooling is needed, and when the conventional mechanical seal is cooled by cooling liquid, the defect that the distribution of the cooling liquid is not uniform enough exists, so that the cooling effect is poor, and a certain improvement space is provided.
Disclosure of Invention
The utility model aims at the above-mentioned problem that prior art exists, provide a mechanical seal with impeller.
The purpose of the utility model can be realized by the following technical proposal: a mechanical seal with an impeller comprising: seal receptacle, impeller, first rotating ring, second rotating ring, first quiet ring and the quiet ring of second, be provided with first opening, transition chamber and the second opening that communicates in proper order in the seal receptacle, first opening with the second opening is located respectively the both ends of seal receptacle, first quiet ring with the quiet ring of second respectively with first opening and the second opening is connected, the impeller sets up in the transition chamber, first rotating ring with first quiet ring is connected, the second rotating ring with the quiet ring of second is connected.
Preferably, the second rotating ring is located in the first opening, the first rotating ring and the second rotating ring are located on one side of the friction pair, and the first stationary ring and the second stationary ring are located on the other side of the friction pair.
Preferably, at least three sealing rings are arranged on the peripheral surface of the sealing seat.
Preferably, a first spring and a second spring are arranged in the transition cavity, the first spring is in abutting connection with the first stationary ring, and the second spring is in abutting connection with the second movable ring.
Preferably, the number of the first springs and the number of the second springs are at least two, and each of the first springs and each of the second springs are arranged in a surrounding manner.
Preferably, the impeller comprises a mounting seat and helical blades, the mounting seat is used for being sleeved on the transmission shaft, and the helical blades are arranged on the peripheral surface of the mounting seat.
Compared with the prior art, the beneficial effects of the utility model are that:
1. when cooling mechanical seal through the coolant liquid, can make coolant liquid distribute more evenly to uniformity has when the liquid flows, thereby improves cooling efficiency.
2. The rotating ring and the static ring are connected to form a friction pair, the contact surface of the friction pair is used as a reference, the first rotating ring and the second rotating ring are located on the right side of the friction pair, and the first static ring and the second static ring are located on the left side of the friction pair, so that the transmission shaft can rotate, and the cooling liquid flows more smoothly.
3. In order to prevent the coolant from leaking, a seal ring is provided on the outer peripheral surface of the seal holder, and the seal ring ensures the sealing property during the circulation cooling.
Drawings
Fig. 1 is a schematic structural view of the cartridge mechanical seal of the present invention.
In the figure, 100, the seal holder; 110. a first opening; 120. a transition chamber; 130. a second opening; 140. a seal ring; 150. a first spring; 160. a second spring; 200. an impeller; 210. a mounting seat; 220. a helical blade; 300. a first rotating ring; 400. a second rotating ring; 500. a first stationary ring; 600. a second stationary ring.
Detailed Description
The following are specific embodiments of the present invention and the accompanying drawings are used to further describe the technical solution of the present invention, but the present invention is not limited to these embodiments.
As shown in fig. 1, a mechanical seal with an impeller includes: a seal holder 100, an impeller 200, a first rotating ring 300, a second rotating ring 400, a first stationary ring 500, and a second stationary ring 600; preferably, the first rotating ring 300 is engaged with the first stationary ring 500, and the second rotating ring 400 is engaged with the second stationary ring 600, thereby forming two end-face seals.
A first opening 110, a transition cavity 120 and a second opening 130 which are sequentially communicated are arranged in the seal seat 100, the first opening 110 and the second opening 130 are respectively located at two ends of the seal seat 100, preferably, the first opening 110 and the second opening 130 are actually two ports of the seal seat 100, the transition cavity 120 is an inner cavity of the seal seat 100, and both the first opening 110 and the second opening 130 are communicated with the transition cavity 120.
The first stationary ring 500 and the second stationary ring 600 are respectively connected to the first opening 110 and the second opening 130, preferably, the seal housing 100 remains stationary, the first stationary ring 500 and the second stationary ring 600 are respectively fixed at two ends of the seal housing 100, and the transmission shaft passes through the first stationary ring 500 and the second stationary ring 600.
The impeller 200 is disposed in the transition chamber 120, the first rotating ring 300 is connected to the first stationary ring 500, and the second rotating ring 400 is connected to the second stationary ring 600.
Preferably, the impeller 200 is located in the transition chamber 120, and both ends of the sealing ring 140 are sealed by the first stationary ring 500 and the first rotating ring 300, and the second stationary ring 600 and the second rotating ring 400, so that the impeller 200 is located in the sealing seat 100, and the cooling liquid injected into the sealing seat 100 can be homogenized by the impeller 200, so that the cooling liquid is distributed more uniformly during cooling, and the liquid flow is uniform.
It is worth mentioning here that the seal holder 100 comprises a sleeve, one end of which is the second opening 130 and the other end of which is formed with a large opening, and an end cap connected to the large opening and having an annular structure with the first opening 110, such structure enabling the impeller 200 to be mounted into the seal holder 100.
Because mechanical seal can generate heat and produce the crystallization at the during operation, so need let in the coolant liquid and cool off and wash the crystallization, in the actual work process, the transmission shaft rotates, the through-hole that the coolant liquid was followed on the seal receptacle 100 is poured into in the transition chamber 120, then through the guide of impeller 200 or stirring for each position of transition chamber 120 can be fast flowed to the coolant liquid, just so realized making the coolant liquid distribute more evenly, and the uniformity has during liquid flow, thereby improve the purpose of cooling efficiency.
As shown in fig. 1, in the above embodiment, the second rotating ring 400 is located in the first opening 110, the first rotating ring 300 and the second rotating ring 400 are located on one side of the friction pair, and the first stationary ring 500 and the second stationary ring 600 are located on the other side of the friction pair.
Preferably, the first rotating ring 300 is not located in the seal seat 100, but is disposed on the transmission shaft and located at one side of the seal seat 100, and the second rotating ring 400 is disposed in the first opening 110, and this design is mainly for the purpose of aligning the orientations of the first rotating ring 300 and the second rotating ring 400, and aligning the orientations of the first stationary ring 500 and the second stationary ring 600.
Specifically, the movable ring and the stationary ring form a friction pair after being connected, and the first movable ring 300 and the second movable ring 400 are located on the right side of the friction pair and the first stationary ring 500 and the second stationary ring 600 are located on the left side of the friction pair with reference to the contact surface of the friction pair, so that the coolant can flow more smoothly when the transmission shaft rotates.
As shown in fig. 1, in addition to the above embodiment, at least three seal rings 140 are provided on the outer circumferential surface of the seal holder 100.
Preferably, a device for introducing the coolant is further attached to the seal holder 100, and in order to prevent the coolant from leaking, a seal ring 140 is particularly provided on the outer peripheral surface of the seal holder 100, and the seal property during the circulation cooling is ensured by the seal ring 140.
As shown in fig. 1, in addition to the above embodiment, a first spring 150 and a second spring 160 are disposed in the transition cavity 120, the first spring 150 is connected to the first stationary ring 500 in an interference manner, and the second spring 160 is connected to the second movable ring 400 in an interference manner.
Preferably, in a practical structure, since the movable ring and the stationary ring generate friction, wear is gradually generated, so that elastic compensation is required, specifically, one end of the first spring 150 is fixed, and the other end is pressed against the first stationary ring 500, so that the first stationary ring 500 is tightly pressed against the first movable ring 300, and similarly, one end of the second spring 160 is fixed, and the other end is pressed against the second movable ring 400, so that the second movable ring 400 is tightly pressed against the second stationary ring 600.
As shown in fig. 1, in the above embodiment, the number of the first springs 150 and the number of the second springs 160 are at least two, and each of the first springs 150 and each of the second springs 160 are arranged in a surrounding manner.
Preferably, the mechanical seal is a multi-spring structure, that is, the number of the first springs 150 is multiple, the number of the second springs 160 is multiple, and the first and second springs 160 are both arranged around the transmission shaft, so that the elastic force can be uniformly distributed.
As shown in fig. 1, in addition to the above embodiment, the impeller 200 includes a mounting seat 210 and a spiral blade 220, the mounting seat 210 is configured to be sleeved on the transmission shaft, and the spiral blade 220 is disposed on an outer circumferential surface of the mounting seat 210.
Preferably, the impeller 200 may be a separate component, that is, the impeller 200 may be sleeved on the transmission shaft through the mounting seat 210, so that the transmission shaft drives the impeller 200 to rotate, and after the cooling fluid is introduced into the transition cavity 120, the impeller 200 can distribute the cooling fluid uniformly during the rotation process.
The specific embodiments described herein are merely illustrative of the spirit of the invention. Various modifications, additions and substitutions for the specific embodiments described herein may be made by those skilled in the art without departing from the spirit of the invention or exceeding the scope of the invention as defined in the accompanying claims.
Claims (6)
1. A mechanical seal having an impeller, comprising: seal receptacle, impeller, first rotating ring, second rotating ring, first quiet ring and the quiet ring of second, be provided with first opening, transition chamber and the second opening that communicates in proper order in the seal receptacle, first opening with the second opening is located respectively the both ends of seal receptacle, first quiet ring with the quiet ring of second respectively with first opening and the second opening is connected, the impeller sets up in the transition chamber, first rotating ring with first quiet ring is connected, the second rotating ring with the quiet ring of second is connected.
2. A mechanical seal with an impeller according to claim 1, wherein: the second rotating ring is located in the first opening, the first rotating ring and the second rotating ring are located on one side of the friction pair, and the first static ring and the second static ring are located on the other side of the friction pair.
3. A mechanical seal with an impeller according to claim 1, wherein: at least three sealing rings are arranged on the peripheral surface of the sealing seat.
4. A mechanical seal with an impeller according to claim 2, wherein: the transition intracavity is provided with first spring and second spring, first spring with first quiet ring is contradicted and is connected, the second spring with the second moves the ring and contradicts and be connected.
5. A mechanical seal with an impeller according to claim 4, wherein: the number of the first springs and the number of the second springs are at least two, and each first spring and each second spring are arranged in a surrounding manner.
6. A mechanical seal with an impeller according to claim 1, wherein: the impeller comprises a mounting seat and helical blades, the mounting seat is used for being sleeved on the transmission shaft, and the helical blades are arranged on the outer peripheral surface of the mounting seat.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202021789117.XU CN213017714U (en) | 2020-08-24 | 2020-08-24 | Mechanical seal with impeller |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202021789117.XU CN213017714U (en) | 2020-08-24 | 2020-08-24 | Mechanical seal with impeller |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN213017714U true CN213017714U (en) | 2021-04-20 |
Family
ID=75471876
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202021789117.XU Active CN213017714U (en) | 2020-08-24 | 2020-08-24 | Mechanical seal with impeller |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN213017714U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114718902A (en) * | 2022-04-26 | 2022-07-08 | 昆明理工大学 | Axial-flow compressed-air pressurized impeller assembly in shaft seal cavity and dry air seal structure |
-
2020
- 2020-08-24 CN CN202021789117.XU patent/CN213017714U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114718902A (en) * | 2022-04-26 | 2022-07-08 | 昆明理工大学 | Axial-flow compressed-air pressurized impeller assembly in shaft seal cavity and dry air seal structure |
| CN114718902B (en) * | 2022-04-26 | 2024-01-12 | 昆明理工大学 | Impeller assembly for axial flow pressure air pressurization in shaft sealing cavity and dry air sealing structure |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| EE01 | Entry into force of recordation of patent licensing contract | ||
| EE01 | Entry into force of recordation of patent licensing contract |
Assignee: Ningbo Chuangwei Machinery Co.,Ltd. Assignor: NINGBO DONGLIAN MECHANICAL SEAL Co.,Ltd. Contract record no.: X2023980053451 Denomination of utility model: A mechanical seal with impeller Granted publication date: 20210420 License type: Common License Record date: 20231221 |