CN202360452U - Ventilator gas seal device - Google Patents
Ventilator gas seal device Download PDFInfo
- Publication number
- CN202360452U CN202360452U CN2011205183373U CN201120518337U CN202360452U CN 202360452 U CN202360452 U CN 202360452U CN 2011205183373 U CN2011205183373 U CN 2011205183373U CN 201120518337 U CN201120518337 U CN 201120518337U CN 202360452 U CN202360452 U CN 202360452U
- Authority
- CN
- China
- Prior art keywords
- seal
- flange
- distribution cavity
- gas
- sealing
- 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 belongs to the field of mechanical equipment accessories, and particularly relates to a ventilator gas seal device which comprises a seal packing, wherein the outer end of the seal packing is provided with a seal gland; the seal gland is sequentially connected with a seal kit and a pressure spring through a connecting bolt; the inner end of the seal packing is sequentially provided with a guard flange and a seal flange; a gas distribution cavity is formed between the guard flange and the seal flange; a partition is arranged in the gas distribution cavity; gas distribution holes are distributed in the partition; and the outer side wall of the gas distribution cavity is connected with a high-pressure gas supply source through a gas supply pipe. The utility model has the advantage of simple and compact structure; the gas distribution cavity is arranged between the seal packing and the transmitted medium to prevent the corrosive medium from damaging the seal packing, thereby prolonging the service life of the seal packing; and the high-pressure gas and seal packing are used for sealing together, thereby enhancing the seal effect.
Description
Technical field
The utility model relates to a kind of ventilator gas-tight sealing, belongs to the machinery fitting field.
Background technique
The shaft end seal device of present domestic ventilator; Great majority adopt the gland packing sealing means; This kind sealing means is fashionable in the field that runs into the strong acid corrosion; Be easy to the stuffing box packing in seal arrangement corrosion, meet water, meet tide and will become strong acid such as hydrochloric acid, sulfuric acid such as gases such as chlorine, sulfur dioxide, this corrosion to the ventilator shaft end seal device that contains gases such as chlorine, sulfur dioxide in medium of carrying is just very serious; Even stuffing box packing was just lost efficacy in several hours; Cause corrosive gas or strong acid leakages such as hydrochloric acid, sulfuric acid such as chlorine, sulfur dioxide, not only production environment is polluted, and bring very big inconvenience and bigger economic loss to production work.
The model utility content
The technical problem that the utility model will solve is: provide a kind of simple and compact for structure, the ventilator gas-tight sealing of long service life and good sealing effect.
The utility model is that the technological scheme that its technical problem of solution is adopted is: described ventilator gas-tight sealing; Comprise stuffing box packing; The outer end of stuffing box packing is provided with sealing gland, and sealing gland connects Seal Kit and pressure spring successively through connecting bolt, it is characterized in that: the inner of stuffing box packing is provided with rib flange and sealing flange successively; Form the distribution cavity between rib flange and the sealing flange; In the distribution cavity dividing plate is set, is distributed with air distribution hole on the dividing plate, the outer side wall of distribution cavity connects the high-pressure air feed source through air supply pipe.
Be provided with the distribution cavity between the medium of carrying in stuffing box packing and the ventilator, be full of pressurized gas in the distribution cavity, can prevent that the medium of carrying from directly contacting with stuffing box packing, avoid stuffing box packing to be corroded, can prolong the life-span of stuffing box packing; And pressurized gas can get in the fan casing through the gap between sealing flange and the blower fan main shaft, utilize its high pressure can reach better sealing effect, prevent the environmental pollution that gas causes to external leakage in the blower fan.
Dividing plate connects the end of Seal Kit, is set to one with Seal Kit.Can make simple and compact for structurely, save the space, and realize easily.
The beneficial effect of the utility model is:
Simple and compact for structure; Between the medium of stuffing box packing and conveying air distribution cavity is set, can prevents to have corrosive medium stuffing box packing is destroyed, prolong the working life of stuffing box packing; And seal jointly through pressurized gas and stuffing box packing, can improve sealing effect.
Description of drawings
Fig. 1 is the structural representation of the utility model.
Fig. 2 is the structure for amplifying schematic representation at A position among Fig. 1.
Among the figure: 1, impeller 2, casing 3, gap A 4, gap B 5, casing back side panel 6, sealing flange 7, gas distributing chamber 8, air supply pipe 9, air distribution hole 10, join and press chamber 11, rib flange 12, clearance C 13, pressure spring 14, stuffing box packing 15, Seal Kit 16, sealing gland 17, blower fan main shaft 18, connecting bolt 19, dividing plate.
Embodiment
Below in conjunction with accompanying drawing the utility model is done and to be further described:
Like Fig. 1～shown in Figure 2, the described ventilator gas-tight sealing of the utility model comprises stuffing box packing 14; The outer end of stuffing box packing 14 is provided with sealing gland 16, and sealing gland 16 connects Seal Kit 15 and pressure spring 13 successively through connecting bolt 18, and the inner of stuffing box packing 14 is provided with rib flange 11 and sealing flange 6 successively; Form the distribution cavity between rib flange 11 and the sealing flange 6, dividing plate 19 is set in the distribution cavity, be distributed with air distribution hole 9 on the dividing plate 19; The distribution cavity is divided into gas distributing chamber 7 by dividing plate 19 and presses chamber 10 with joining; Gas distributing chamber 7 is positioned to join and presses 10 outsides, chamber, and the outer side wall of gas distributing chamber 7 connects the high-pressure air feed source through air supply pipe 8, the end of dividing plate 19 connection Seal Kits 15; Be set to one with Seal Kit 15; The interior edge face of sealing flange 6 connects casing back side panel 5, and casing back side panel 5 links to each other with casing 2, is provided with impeller 1 in the casing 2.
Working procedure:
Claims (2)
1. a ventilator gas-tight sealing comprises stuffing box packing, and the outer end of stuffing box packing is provided with sealing gland; Sealing gland connects Seal Kit and pressure spring successively through connecting bolt; It is characterized in that: the inner of stuffing box packing is provided with rib flange and sealing flange successively, forms the distribution cavity between rib flange and the sealing flange, in the distribution cavity dividing plate is set; Be distributed with air distribution hole on the dividing plate, the outer side wall of distribution cavity connects the high-pressure air feed source through air supply pipe.
2. ventilator gas-tight sealing according to claim 1 is characterized in that: dividing plate connects the end of Seal Kit, is set to one with Seal Kit.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011205183373U CN202360452U (en) | 2011-12-13 | 2011-12-13 | Ventilator gas seal device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011205183373U CN202360452U (en) | 2011-12-13 | 2011-12-13 | Ventilator gas seal device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202360452U true CN202360452U (en) | 2012-08-01 |
Family
ID=46571642
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2011205183373U Expired - Fee Related CN202360452U (en) | 2011-12-13 | 2011-12-13 | Ventilator gas seal device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202360452U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106523424A (en) * | 2016-12-01 | 2017-03-22 | 中航黎明锦西化工机械(集团)有限责任公司 | Centrifugal chlorine gas compressor shaft end seal |
| CN113074134A (en) * | 2021-03-25 | 2021-07-06 | 江苏泰隆风机制造有限公司 | Sealing device between centrifugal fan casing and shaft |
-
2011
- 2011-12-13 CN CN2011205183373U patent/CN202360452U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106523424A (en) * | 2016-12-01 | 2017-03-22 | 中航黎明锦西化工机械(集团)有限责任公司 | Centrifugal chlorine gas compressor shaft end seal |
| CN113074134A (en) * | 2021-03-25 | 2021-07-06 | 江苏泰隆风机制造有限公司 | Sealing device between centrifugal fan casing and shaft |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20120801 Termination date: 20191213 |