CN104343721A - Fan sealing device - Google Patents
Fan sealing device Download PDFInfo
- Publication number
- CN104343721A CN104343721A CN201310329007.3A CN201310329007A CN104343721A CN 104343721 A CN104343721 A CN 104343721A CN 201310329007 A CN201310329007 A CN 201310329007A CN 104343721 A CN104343721 A CN 104343721A
- Authority
- CN
- China
- Prior art keywords
- gas
- fan
- sealing device
- shell
- capsul
- 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.)
- Pending
Links
Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04D—NON-POSITIVE-DISPLACEMENT PUMPS
- F04D27/00—Control, e.g. regulation, of pumps, pumping installations or pumping systems specially adapted for elastic fluids
- F04D27/008—Stop safety or alarm devices, e.g. stop-and-go control; Disposition of check-valves
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04D—NON-POSITIVE-DISPLACEMENT PUMPS
- F04D29/00—Details, component parts, or accessories
- F04D29/08—Sealings
- F04D29/10—Shaft sealings
- F04D29/102—Shaft sealings especially adapted for elastic fluid pumps
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04D—NON-POSITIVE-DISPLACEMENT PUMPS
- F04D29/00—Details, component parts, or accessories
- F04D29/08—Sealings
- F04D29/10—Shaft sealings
- F04D29/102—Shaft sealings especially adapted for elastic fluid pumps
- F04D29/104—Shaft sealings especially adapted for elastic fluid pumps the sealing fluid being other than the working fluid or being the working fluid treated
Abstract
The invention discloses a fan sealing device. The fan sealing device comprises a fan shell and a rotating shaft. A sealing shell fixed on the fan shell is arranged on the outer side of the fan shell, a labyrinth sealing device is arranged between the fan shell and the rotating shaft, and a packing sealing device is arranged between the sealing shell and the rotating shaft. The fan sealing device is characterized in that a plurality of gas inlet branch pipes are connected to the sealing shell and are distributed on the outer wall of the sealing shell uniformly, the tail ends of the gas inlet branch pipes are connected with a gas inlet pipe, the gas inlet pipe is connected with a gas storage tank filled with compressed gas, the pressure of the compressed gas is larger than that of gas to be delivered by the fan, a switch valve is arranged on the air inlet pipe, and a gas pressure sensor is arranged in the gas inlet pipe and connected with an alarm through a signal wire. The fan sealing device has the advantages of simple structure, good sealing effect and high safety.
Description
Technical field
The present invention relates to a kind of blower fan, particularly a kind of fan sealing device.
Background technique
At present, along with the development of blower fan technology, the conveying scope of blower fan expanded such as coal gas to by former innocuous gas, hexane gas, the harmful gases such as hydrogen sulfide gas, can not reveal in order to ensure harmful gas, the seal arrangement of people to blower fan improves, notification number is CN101782083B, the Chinese invention patent that denomination of invention is " a kind of sealing device for fan " discloses another kind of fan sealing device, this device mainly comprises Blower Housing and rotatingshaft, the outside of Blower Housing is provided with water-stop housing, labyrinth gland is provided with between Blower Housing and rotatingshaft, the outside of labyrinth gland is provided with water sealing device, stuffing seal is provided with between water-stop housing and rotatingshaft, water sealing device comprises one and is fixed on fixed body that is on Blower Housing and that be positioned at outside labyrinth gland, the end winding support of fixed body is connected with an annular block body, rotatingshaft is also fixedly connected with a solid of rotation, cross section is that circular clasp one end of U-shaped is fixed on solid of rotation, clasp spiral-lock carries the external side of annular shelves, form a cavity between the two, an annular exit is formed between other one end of clasp and fixed body, water-stop housing is fixed on Blower Housing, intake pipe passed water-stop housing and communicated with fixed body inside, outlet pipe communicates with water-stop enclosure interior.This invention by intake pipe water filling in cavity, when rotatingshaft rotates time, under the influence of centrifugal force, utilize the water being full of cavity further by Blower Housing and rotating shaft sealing, thus improve the sealing effect of blower fan, but, sealing apparatus structure is comparatively complicated, very high to the sealing requirements of cavity, meanwhile, sealing device does not have testing module, once leaking appears in the water in cavity, can not and alarm, thus, deficiency is a lot of.
Summary of the invention
The problem to be solved in the present invention is: provide a kind of structure simple, energy and alarm when there is leakage of compressed gas fan sealing device.
In order to solve the problem, fan sealing device of the present invention, comprise Blower Housing and rotatingshaft, the outside of Blower Housing is provided with a capsul be fixed on Blower Housing, labyrinth gland is provided with between described Blower Housing and rotatingshaft, stuffing seal is provided with between described capsul and rotatingshaft, it is characterized in that: described capsul is connected with some air intake branches, the end of described some air intake branches is connected with suction tude, described suction tude is connected with a gas holder, pressurized gas is full of in described gas holder, the pressure of described pressurized gas is greater than the pressure of the gas that blower fan will transmit.
In order to the air pressure of energy Real-Time Monitoring pressurized gas, and can give the alarm in time when air pressure reduces, fan sealing device of the present invention, described suction tude is provided with switch valve, be provided with a gas pressure sensor in described suction tude, described gas pressure sensor is connected with an alarm by signaling line.
In order to improve the stability of capsul internal air pressure further, described some air intake branches are distributed on the outer wall of capsul.
The beneficial effect that the present invention obtains is: (1) structure is simple; (2) pressure of the pressurized gas in gas holder is greater than the pressure of the gas that blower fan transmits, thus after being full of pressurized gas in capsul, even if there is sealing problem in labyrinth gland, because the air pressure in capsul is greater than the air pressure that blower fan transmits gas, thus the toxic gas that blower fan transmits also can not be leaked by labyrinth gland, safe and reliable; Be greater than the air pressure in blower fan due to the air pressure in capsul simultaneously, pressurized gas cognition progressively enters in blower fan, along with pressurized gas enters blower fan, air pressure in capsul and in suction tude can reduce, now, gas pressure sensor can send a signal to alarm in time, and alarm can give the alarm immediately, thus remind operator can close blower fan in time, overhaul; If leaking appears in stuffing seal, then the air pressure in capsul and suction tude also can reduce, now, gas pressure sensor can send a signal to alarm in time, alarm also can give the alarm immediately, thus reminds operator can close blower fan in time, overhauls, so, no matter be that leaking appears in labyrinth gland or stuffing seal, alarm all can give the alarm in time, reminds operator to close blower fan and overhauls, thus good sealing effect, Safety performance is high.
Accompanying drawing explanation
Fig. 1 is structural representation of the present invention.
In figure: 1, rotatingshaft, 2, Blower Housing, 3, capsul, 4, air intake branch, 5, gas pressure sensor,
6, alarm, 7, gas holder, 8, switch valve, 9, suction tude, 10, stuffing seal,
11, labyrinth gland.
Embodiment
As shown in Figure 1, fan sealing device of the present invention, comprise Blower Housing 2 and rotatingshaft 1, the outside of Blower Housing 2 is provided with a capsul 3 be fixed on Blower Housing 2, labyrinth gland 11 is provided with between described Blower Housing 2 and rotatingshaft 1, stuffing seal 10 is provided with between described capsul 3 and rotatingshaft 1, described capsul 3 is connected with some air intake branches 4, the end of described some air intake branches 4 is connected with suction tude 9, described suction tude 9 is connected with a gas holder 7, pressurized gas is full of in described gas holder 7, the pressure of described pressurized gas is greater than the pressure of the gas that blower fan will transmit, described suction tude 9 is provided with switch valve 8, is provided with a gas pressure sensor 5 in described suction tude 9, and described gas pressure sensor 5 is connected with an alarm 6 by signaling line, described some air intake branches 4 are distributed on the outer wall of capsul 3.
Fan sealing device of the present invention, structure is simple, the pressure of the pressurized gas in gas holder 7 is greater than the pressure of the gas that blower fan transmits, thus after being full of pressurized gas in capsul 3, even if there is sealing problem in labyrinth gland 11, because the air pressure in capsul 3 is greater than the air pressure that blower fan transmits gas, the toxic gas that thus blower fan transmits also can not be leaked by labyrinth gland 11, safe and reliable; Be greater than the air pressure in blower fan due to the air pressure in capsul 3 simultaneously, pressurized gas cognition progressively enters in blower fan, along with pressurized gas enters blower fan, air pressure in capsul 3 and in suction tude 9 can reduce, now, gas pressure sensor 5 can send a signal to alarm 6 in time, and alarm 6 can give the alarm immediately, thus remind operator can close blower fan in time, overhaul; If leaking appears in stuffing seal 10, air pressure then in capsul 3 and suction tude 9 also can reduce, now, gas pressure sensor 5 can send a signal to alarm 6 in time, alarm 6 also can give the alarm immediately, thus remind operator can close blower fan in time, overhaul, so, no matter be that leaking appears in labyrinth gland 11 or stuffing seal 10, alarm 6 all can give the alarm in time, reminds operator to close blower fan and overhauls, thus good sealing effect, Safety performance is high.
Claims (3)
1. a fan sealing device, comprise Blower Housing (2) and rotatingshaft (1), the outside of Blower Housing (2) is provided with a capsul (3) be fixed on Blower Housing (2), labyrinth gland (11) is provided with between described Blower Housing (2) and rotatingshaft (1), stuffing seal (10) is provided with between described capsul (3) and rotatingshaft (1), it is characterized in that: described capsul (3) is connected with some air intake branches (4), the end of described some air intake branches (4) is connected with suction tude (9), described suction tude (9) is connected with a gas holder (7), described gas holder is full of pressurized gas in (7), the pressure of described pressurized gas is greater than the pressure of the gas that blower fan will transmit.
2. fan sealing device according to claim 1, it is characterized in that: described suction tude (9) is provided with switch valve (8), be provided with a gas pressure sensor (5) in described suction tude (9), described gas pressure sensor (5) is connected with an alarm (6) by signaling line.
3. fan sealing device according to claim 1 and 2, is characterized in that: described some air intake branches (4) are distributed on the outer wall of capsul (3).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310329007.3A CN104343721A (en) | 2013-07-31 | 2013-07-31 | Fan sealing device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310329007.3A CN104343721A (en) | 2013-07-31 | 2013-07-31 | Fan sealing device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN104343721A true CN104343721A (en) | 2015-02-11 |
Family
ID=52500010
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201310329007.3A Pending CN104343721A (en) | 2013-07-31 | 2013-07-31 | Fan sealing device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN104343721A (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107382031A (en) * | 2017-09-08 | 2017-11-24 | 蚌埠玻璃工业设计研究院 | A kind of sealing device for electronical display glass platinum channel |
| CN109028566A (en) * | 2018-06-30 | 2018-12-18 | 安徽永鹏机械有限公司 | Feeder in a kind of hot-blast stove furnace |
| CN110332312A (en) * | 2019-07-06 | 2019-10-15 | 南通范氏机械有限公司 | Axial combination sealing mechanism |
| CN113606159A (en) * | 2021-07-02 | 2021-11-05 | 光大环境科技（中国）有限公司 | Fully-sealed fan for flue gas recirculation and sealing monitoring method |
-
2013
- 2013-07-31 CN CN201310329007.3A patent/CN104343721A/en active Pending
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107382031A (en) * | 2017-09-08 | 2017-11-24 | 蚌埠玻璃工业设计研究院 | A kind of sealing device for electronical display glass platinum channel |
| CN109028566A (en) * | 2018-06-30 | 2018-12-18 | 安徽永鹏机械有限公司 | Feeder in a kind of hot-blast stove furnace |
| CN109028566B (en) * | 2018-06-30 | 2020-11-27 | 安徽永鹏机械有限公司 | In-furnace air supply device for hot blast stove |
| CN110332312A (en) * | 2019-07-06 | 2019-10-15 | 南通范氏机械有限公司 | Axial combination sealing mechanism |
| CN113606159A (en) * | 2021-07-02 | 2021-11-05 | 光大环境科技（中国）有限公司 | Fully-sealed fan for flue gas recirculation and sealing monitoring method |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20150211 |
|
| WD01 | Invention patent application deemed withdrawn after publication |