CN201507468U - Negative pressure anti-oil leakage device of blower bearing box - Google Patents
Negative pressure anti-oil leakage device of blower bearing box Download PDFInfo
- Publication number
- CN201507468U CN201507468U CN2009201891188U CN200920189118U CN201507468U CN 201507468 U CN201507468 U CN 201507468U CN 2009201891188 U CN2009201891188 U CN 2009201891188U CN 200920189118 U CN200920189118 U CN 200920189118U CN 201507468 U CN201507468 U CN 201507468U
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- CN
- China
- Prior art keywords
- negative pressure
- blower
- bearing box
- oil leakage
- fan
- 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.)
- Expired - Fee Related
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Abstract
The utility model provides a negative pressure anti-oil leakage device of a blower bearing box, which comprises a blower with one end connected with the blower bearing box and the other end arranged with an air inlet pipe, and is characterized in that one end of a connecting pipe is closely connected with the air inlet pipe, the other end thereof is closely connected to the upper part of a blower gear box, wherein negative pressure is formed in the air inlet pipe through the high-speed rotation of a blower impeller, negative pressure is formed in the blower bearing box under the action of the connecting pipe, and the lubricating oil can be prevented from leakage under the action of external atmosphere; and the utility model has the advantages of simple structure, reliable leakage control, and excellent usage effect and the like.
Description
Technical field
The utility model relates to a kind of blower fan bearing housing oil leakage preventing apparatus, and especially the fan bearing case utilizes negative pressure to prevent the device of leakage of oil.
Background technique
At present, the bearing housing oil leak of existing ventilator or induced draught fan is puzzlement people's a difficult problem always.Because draught fan impeller runs up, bearing in the bearing housing and axle high speed rotating, lubricant oil obtains high-speed stirred, causes oily temperature rise in the bearing housing, forms malleation, gives to administer to leak and causes very big difficulty.At present, engineers and technicians have adopted many methods to administer and have leaked, and are not all effectively solved, though these methods are effectively temporary transient, all cure the symptoms, not the disease have more than is needed how long the leakage again.
Summary of the invention
The purpose of this utility model just provides a kind of easy, effective fan bearing case negative pressure oil leakage preventing apparatus.
The purpose of this utility model is achieved in that this device comprises blower fan, one end of blower fan is connected with the fan bearing case, the other end is provided with air intake pipe, it is characterized in that: an end of connecting tube and air intake pipe close proximity, the other end connects airtight at the fan bearing upper box part, modulating valve of serial connection between the described connecting tube.
From the above: when the impeller in the blower fan runs up, make that the speed air flow in the air intake pipe is very fast, the interior air pressure of air intake pipe this moment is lower than barometric pressure, form negative pressure, the connecting tube of fan bearing case inside simultaneously by connecting airtight with air intake pipe, also form negative pressure, under externally atmospheric effect this moment, stoped leaking of fan bearing case lubricant oil.
The utlity model has simple in structure, characteristics such as leakproof is reliable, and using effect is good.
Description of drawings
Accompanying drawing is the utility model user mode schematic representation.
Embodiment
Referring to accompanying drawing, the utility model comprises blower fan 3, and an end of blower fan 3 is connected with fan bearing case 5, the other end is provided with air intake pipe 1, it is characterized in that: an end of connecting tube 2 and air intake pipe 1 close proximity, the other end connects airtight on the top of fan bearing case 5, modulating valve 4 of serial connection on the described connecting tube 2.
Working principle of the present utility model is as follows: the impeller (drawing among the figure) in fan bearing case 5 drive blower fans 3 is when running up, make that the speed air flow in the air intake pipe 1 is very fast, this moment, air intake pipe 1 interior air pressure was lower than barometric pressure, form negative pressure, the connecting tube 2 of fan bearing case 5 inside simultaneously by connecting airtight with air intake pipe 1, also form negative pressure, under externally atmospheric effect this moment, stoped leaking of fan bearing case 5 lubricant oil.
Be serially connected in negative pressure (degree of vacuum) size that the modulating valve 4 in the connecting tube 2 is used to regulate fan bearing case 5 inside.
Claims (2)
1. fan bearing case negative pressure oil leakage preventing apparatus, comprise blower fan (3), an end of blower fan (3) is connected with fan bearing case (5), and the other end is provided with air intake pipe (1), it is characterized in that: an end of connecting tube (2) and air intake pipe (1) close proximity, the other end connects airtight on blower fan gear-box (5) top.
2. according to the described device of claim 1, it is characterized in that upward modulating valve 4 of serial connection of connecting tube (2).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009201891188U CN201507468U (en) | 2009-09-17 | 2009-09-17 | Negative pressure anti-oil leakage device of blower bearing box |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009201891188U CN201507468U (en) | 2009-09-17 | 2009-09-17 | Negative pressure anti-oil leakage device of blower bearing box |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201507468U true CN201507468U (en) | 2010-06-16 |
Family
ID=42468595
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2009201891188U Expired - Fee Related CN201507468U (en) | 2009-09-17 | 2009-09-17 | Negative pressure anti-oil leakage device of blower bearing box |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201507468U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106762793A (en) * | 2017-01-03 | 2017-05-31 | 山东钢铁股份有限公司 | A kind of device for preventing air blower shaft end sealing leak coal gas |
| CN114192485A (en) * | 2021-12-08 | 2022-03-18 | 富芯微电子有限公司 | Automatic change development piece cleaning equipment |
-
2009
- 2009-09-17 CN CN2009201891188U patent/CN201507468U/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106762793A (en) * | 2017-01-03 | 2017-05-31 | 山东钢铁股份有限公司 | A kind of device for preventing air blower shaft end sealing leak coal gas |
| CN106762793B (en) * | 2017-01-03 | 2023-02-28 | 山东钢铁股份有限公司 | Device for preventing shaft end of air blower from sealing and leaking coal gas |
| CN114192485A (en) * | 2021-12-08 | 2022-03-18 | 富芯微电子有限公司 | Automatic change development piece cleaning equipment |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20100616 Termination date: 20120917 |