CN217502071U - Ventilation blower shaft seal drain and ventilation blower - Google Patents
Ventilation blower shaft seal drain and ventilation blower Download PDFInfo
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- CN217502071U CN217502071U CN202221477795.1U CN202221477795U CN217502071U CN 217502071 U CN217502071 U CN 217502071U CN 202221477795 U CN202221477795 U CN 202221477795U CN 217502071 U CN217502071 U CN 217502071U
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- fan shell
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Abstract
The utility model relates to a ventilation blower bearing seal drain and ventilation blower. This ventilation blower shaft seal drain includes: the sealing body is sleeved on the outer surface of the transmission shaft, one end of the sealing body is connected with the fan shell, and a cavity is formed between the inner part of one end, close to the fan shell, of the sealing body and the transmission shaft; the throttling element is arranged in the cavity and sleeved on the outer surface of the transmission shaft, the throttling element divides the cavity into a liquid storage cavity and a liquid discharge cavity, the liquid storage cavity is close to the fan shell, and the liquid discharge cavity is far away from the fan shell; the first pipe joint penetrates through the sealing body, and a liquid inlet of the first pipe joint is communicated with a liquid outlet of the liquid discharge cavity; the gland bush is established at the surface of transmission shaft, and the one end of gland is connected with the other end of seal. The shaft seal liquid discharge device of the ventilator is convenient to manufacture, simple in structure and capable of effectively preventing liquid from leaking; and the cost is low, the maintenance is convenient for users, the production period can not be influenced, and the problem of poor sealing performance is solved.
Description
Technical Field
The utility model belongs to the technical field of the sealed technique of pivot and specifically relates to a ventilation blower bearing seal drain and ventilation blower are related to.
Background
The existing common shaft seal of the fan is mainly used for sealing gas, and sealing liquid is not considered. Once leakage occurs on site, the replacement and maintenance are troublesome. When the ventilator is in operation, the transported medium components are complex, some ventilator media contain liquid besides gas, the liquid is easy to leak through the shaft seal, and the leaked liquid generally has odor or other pungent odor, which affects the safety of the surrounding environment and field personnel.
In the related art, for a fan under a liquid-containing working condition in the industry, a common mechanical seal is a sealing surface formed between a shaft seal and a rotating shaft by adopting an aluminum alloy or polytetrafluoroethylene material. However, the existing mechanical seal has higher cost, the price of some seals is higher than that of a fan, and the use is not universal.
SUMMERY OF THE UTILITY MODEL
The utility model aims at providing a shaft seal drain and ventilation blower to it is with high costs to alleviate current sealing device, does not have the commonality, does not have the problem to liquid seal and bearing seal flowing back.
On the one hand, in order to solve the above technical problem, the utility model discloses a technical scheme be:
a shaft seal drainage device comprises a seal body, a throttling element, a first pipe joint and a gland;
the sealing body is sleeved on the outer surface of the transmission shaft, one end of the sealing body is connected with the fan shell, and a cavity is formed between the inner part of one end, close to the fan shell, of the sealing body and the transmission shaft;
the throttling element is arranged in the cavity and sleeved on the outer surface of the transmission shaft, the throttling element divides the cavity into a liquid storage cavity and a liquid discharge cavity, the liquid storage cavity is close to the fan shell, and the liquid discharge cavity is far away from the fan shell;
the first pipe joint penetrates through the sealing body, and a liquid inlet of the first pipe joint is communicated with a liquid outlet of the liquid discharge cavity;
the gland bush is sleeved on the outer surface of the transmission shaft, and one end of the gland bush is connected with the other end of the sealing body.
Preferably, a second pipe joint is arranged at the bottom of the fan shell, a liquid outlet of the liquid discharge pipe is connected with a liquid inlet of the second pipe joint, and a liquid outlet of the second pipe joint is communicated with a liquid discharge pipe at the bottom of the fan shell.
Preferably, a connecting plate is arranged between the sealing body and the fan shell; and a sealing gasket is arranged between the connecting plate and the sealing body.
Preferably, the throttling element is a labyrinth ring, and the labyrinth ring is connected with the inside of the sealing body through interference fit.
Preferably, the inside packing rope that is equipped with of one end that the seal is close to the gland, the packing rope sets up between seal and the transmission shaft, the packing rope is the immersion oil packing rope.
Preferably, one side of the gland, which is close to the packing rope, is provided with a labyrinth groove.
Preferably, a labyrinth groove is formed in one side, close to the casing, of the labyrinth ring.
On the other hand, the utility model provides a ventilation blower, this ventilation blower include above-mentioned ventilation blower bearing seal drain.
The utility model discloses possess following beneficial effect:
1. this ventilation machine bearing seal drain, stock solution chamber and flowing back chamber are separated into with the cavity of sealing in to the throttling element, and the flowing back chamber is connected the fluid-discharge tube through first coupling and is reached the flowing back effect, effectively improves site environment, has reduced the not good influence that reveals liquid and cause to surrounding environment and site personnel's safety.
2. According to the ventilator shaft seal drainage device, the sealing performance of the ventilator shaft seal drainage device on the shaft seal is improved through the form of combined sealing of the sealing body and the labyrinth ring.
3. This ventilation blower bearing seal drain replaces the immersion oil packing with ordinary packing, can effectual prevention liquid reveal, makes the sealed effect of bearing seal further improve.
4. The shaft seal liquid discharge device of the ventilator has the cost lower than that of a mechanical seal by more than 80 percent, and solves the problem of high cost.
Drawings
For the purpose of more clearly explaining the embodiments of the present invention or the technical solutions in the prior art, the drawings required to be used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to these drawings without any creative effort.
Fig. 1 is a schematic structural diagram of embodiment 1 of the present invention;
FIG. 2 is an enlarged view of portion A of FIG. 1;
FIG. 3 is an enlarged view of the portion B in FIG. 1;
FIG. 4 is a schematic view of the connection of the first adapter, the second adapter and the drain pipe of FIG. 1;
fig. 5 is a schematic structural diagram of embodiment 2 of the present invention;
description of reference numerals: 1. a housing; 2. Shaft sealing; 3. A drive shaft; 4. a liquid discharge pipe at the bottom of the machine shell; 5. a connecting plate; 6. a gasket; 7. a liquid storage cavity; 8. a cavity; 9. a seal body; 10. a throttle member; 11. a packing rope; 12. a gland; 13. a liquid discharge cavity; 14. a first pipe joint; 15. a liquid discharge pipe; 16. a second pipe joint.
Detailed Description
The technical solutions of the present invention will be described clearly and completely with reference to the accompanying drawings, and it should be understood that the described embodiments are some, but not all embodiments of the present invention. All other embodiments, which can be obtained by a person skilled in the art without any inventive step based on the present embodiment, belong to the protection scope of the present invention.
In the description of the present invention, it should be noted that, as the terms "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc. appear, their indicated orientations or positional relationships are based on those shown in the drawings, and are only for convenience of description and simplicity of description, but do not indicate or imply that the device or element being referred to must have a particular orientation, be constructed and operated in a particular orientation, and thus, should not be construed as limiting the present invention. Furthermore, the appearances of the terms "first" and "second" are only used for descriptive purposes and are not to be construed as indicating or implying relative importance.
The utility model discloses a ventilation blower bearing seal drain and ventilation blower.
Example 1
Referring to fig. 1-4, the utility model relates to a ventilator shaft seal drainage device, which comprises a sealing body 9, a throttling element 10, a first pipe joint 14 and a gland 12; the sealing body 9 is sleeved on the outer surface of the transmission shaft 3, one end of the sealing body 9 is connected with the fan casing 1, and a cavity 8 is formed between the inner part of one end, close to the fan casing 1, of the sealing body 9 and the transmission shaft 3; the throttling element 10 is arranged in the cavity 8 and sleeved on the outer surface of the transmission shaft 3, the cavity 8 is divided into a liquid storage cavity 7 and a liquid discharge cavity 13 by the throttling element 10, the liquid storage cavity 7 is close to the fan shell 1, and the liquid discharge cavity 13 is far away from the fan shell 1; a first pipe joint 14 penetrates through the sealing body 9, and a liquid inlet of the first pipe joint 14 is communicated with a liquid outlet of the liquid discharge cavity 13; a liquid outlet of the first pipe joint 14 is communicated with a liquid inlet of a liquid discharge pipe 15, and a liquid outlet of the liquid discharge pipe 15 is communicated with a liquid inlet of a second pipe joint 16 at the bottom of the fan shell 1; the gland 12 is sleeved on the outer surface of the transmission shaft 3, and one end of the gland 12 is connected with the other end of the sealing body 9.
A liquid outlet of the second pipe joint 16 is communicated with a liquid discharge pipe 4 at the bottom of the fan shell 1; a connecting plate 5 is arranged between the sealing body 9 and the fan shell 1; a sealing gasket 6 is arranged between the connecting plate 5 and the sealing body 9; the throttling element 10 is a labyrinth ring; the labyrinth ring is connected with the inside of the sealing body 9 in an interference fit manner; a packing rope 11 is arranged inside one end of the sealing body 9 close to the gland 12, and the packing rope 11 is arranged between the sealing body 9 and the transmission shaft 3; the packing rope 11 is a butter soaking packing rope; one side of the gland 12 close to the packing rope 11 is provided with a labyrinth groove, and the gland 12 with the labyrinth groove is adopted on the outer side of the sealing body 9 to tightly press the oil-immersed packing rope 11 wound by 2-3 circles into the sealing body 9; the packing rope 11 at the rear side of the sealing body 9 is a butter dipping packing rope.
The liquid in the medium is blocked by the throttling element 10, a small part of the liquid can enter the liquid discharge cavity 13, flows back to the interior of the machine shell 1 through the liquid discharge pipe 15 and is discharged in a centralized way through the liquid discharge pipe 4 at the bottom of the machine shell 1; the immersion oil packing rope 11 of rear side compresses tightly the back and 3 butts of transmission shaft, and oil can be full of between transmission shaft 3 and packing rope 11, can effectually prevent the infiltration of liquid, and last side gland 12 inner circle is labyrinth groove in addition, can further reduce revealing of residual liquid. The shaft seal leakproofness that the embodiment provided is good, changes into the sealed form of combination, can effectual prevention liquid reveal, makes the sealed effect of shaft seal better, and the device cost will be lower than mechanical seal more than 80%, has solved problem with high costs.
During staff's routine maintenance, once tightening fastening bolt every month, change butter packing 12 once every three months, can ensure the leakproofness of shaft seal rear side, ensure that liquid can not reveal.
The bearing seal that this embodiment provided has realized the optimization to the bearing seal structure, changes ordinary packing into the immersion oil packing, prevents revealing effectually, effectively improves site environment, has reduced the harmful effects that reveals liquid and cause to surrounding environment and site personnel's safety.
Example 2
Referring to fig. 5, the present embodiment discloses a ventilator including the ventilator shaft seal drain provided in embodiment 1, which is provided at the junction of the fan case 1 and the drive shaft 3.
The above are all preferred embodiments of the present invention, and the protection scope of the present invention is not limited thereby, so: all equivalent changes made according to the structure, shape and principle of the invention are covered by the protection scope of the invention.
Claims (10)
1. The utility model provides a ventilation blower bearing seal drain, ventilation blower bearing seal drain sets up the junction at fan casing and transmission shaft, its characterized in that includes:
the sealing body is sleeved on the outer surface of the transmission shaft, one end of the sealing body is connected with the fan shell, and a cavity is formed between the inner part of one end, close to the fan shell, of the sealing body and the transmission shaft;
the throttling element is arranged in the cavity and sleeved on the outer surface of the transmission shaft, the throttling element divides the cavity into a liquid storage cavity and a liquid discharge cavity, the liquid storage cavity is close to the fan shell, and the liquid discharge cavity is far away from the fan shell;
the first pipe joint penetrates through the sealing body, and a liquid inlet of the first pipe joint is communicated with a liquid outlet of the liquid discharge cavity;
the gland is sleeved on the outer surface of the transmission shaft, and one end of the gland is connected with the other end of the sealing body.
2. A ventilator shaft seal drain as claimed in claim 1, wherein: and the liquid outlet of the first pipe joint is communicated with the liquid inlet of the liquid discharge pipe.
3. A ventilator shaft seal drain as claimed in claim 2, wherein: and a second pipe joint is arranged at the bottom of the fan shell, a liquid outlet of the liquid discharge pipe is connected with a liquid inlet of the second pipe joint, and a liquid outlet of the second pipe joint is communicated with the liquid discharge pipe at the bottom of the fan shell.
4. A ventilator shaft seal drain as claimed in claim 1, wherein: a connecting plate is arranged between the sealing body and the fan shell; and a sealing gasket is arranged between the connecting plate and the sealing body.
5. A ventilator shaft seal drain as claimed in claim 1, wherein: the throttling piece is a labyrinth ring.
6. A ventilator shaft seal drain according to claim 5, characterized in that: the labyrinth ring is connected with the inside of the sealing body in an interference fit manner.
7. A ventilator shaft seal drain as claimed in claim 1, wherein: the sealing body is close to the inside packing rope that is equipped with of one end of gland, the packing rope sets up the sealing body with between the transmission shaft.
8. A ventilator shaft seal drain according to claim 7, wherein: the packing rope is an oil immersion packing rope.
9. A ventilator shaft seal drain according to claim 8, wherein: one side of the gland, which is close to the packing rope, is provided with a labyrinth groove.
10. A ventilator including a ventilator shaft seal drain as claimed in any one of claims 1 to 9.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202221477795.1U CN217502071U (en) | 2022-06-14 | 2022-06-14 | Ventilation blower shaft seal drain and ventilation blower |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202221477795.1U CN217502071U (en) | 2022-06-14 | 2022-06-14 | Ventilation blower shaft seal drain and ventilation blower |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN217502071U true CN217502071U (en) | 2022-09-27 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202221477795.1U Active CN217502071U (en) | 2022-06-14 | 2022-06-14 | Ventilation blower shaft seal drain and ventilation blower |
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| CN (1) | CN217502071U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN117823449A (en) * | 2023-12-28 | 2024-04-05 | 广东肇庆德通有限公司 | Draught fan sealing structure containing tar working condition and treatment system thereof |
-
2022
- 2022-06-14 CN CN202221477795.1U patent/CN217502071U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN117823449A (en) * | 2023-12-28 | 2024-04-05 | 广东肇庆德通有限公司 | Draught fan sealing structure containing tar working condition and treatment system thereof |
| CN117823449B (en) * | 2023-12-28 | 2024-06-07 | 广东肇庆德通有限公司 | Draught fan sealing structure containing tar working condition and treatment system thereof |
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