CN203023121U - Meridian accelerating axial flow fan - Google Patents
Meridian accelerating axial flow fan Download PDFInfo
- Publication number
- CN203023121U CN203023121U CN 201220711389 CN201220711389U CN203023121U CN 203023121 U CN203023121 U CN 203023121U CN 201220711389 CN201220711389 CN 201220711389 CN 201220711389 U CN201220711389 U CN 201220711389U CN 203023121 U CN203023121 U CN 203023121U
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- CN
- China
- Prior art keywords
- impeller
- rotating shaft
- diffuser
- rotor
- exhaust side
- 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 - Lifetime
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Abstract
The utility model discloses a meridian accelerating axial flow fan. The meridian accelerating axial flow fan comprises an inlet box, a rotor, an impeller shell, a static blade, a diffuser, a cooling air disc, an inlet side shaft seal, an exhaust side shaft seal and an air duct, wherein one end of the impeller shell is connected with the inlet box and the other end of the impeller shell is connected with the diffuser; the static blade is arranged on the impeller shell; the rotor is composed of a rotating shaft and an impeller arranged on the rotating shaft, and is arranged in the inlet box and the impeller shell; two ends of the rotating shaft are respectively arranged on an inlet side bearing and an exhaust side bearing; the cooling air disc is arranged on the rotating shaft and is close to the inlet side bearing; the inlet side shaft seal is close to the cooling air disc, and the exhaust side shaft seal is close to the exhaust side bearing; the air duct is arranged in the diffuser, and the inlet end stretches out of the diffuser; the impeller comprises a hub, a fixed blade, an adjustable blade and a lock sheet capable of preventing the adjustable blade from rotating; the fixed blade is welded on the hub; the blade handle of the adjustable blade is connected with the hub of the impeller through a nut; and the supporting lug of the lock sheet is arranged on the hub, and the other end of the lock sheet is turned and is adjacent to the nut.
Description
Technical field
The utility model relates to ventilator, particularly a kind of meridian acceleration axial-flow blower for a dry-dedusting system of pneumatic steelmaking.
Background technique
Meridian acceleration axial-flow blower in dry-dedusting system of pneumatic steelmaking, its major function is that the flue gas that produces in steelmaking process is extracted out from converter, and pressurizes, and then is filled with gas cabinet standby.
That the pneumatic steelmaking one-period is divided into is reinforced, blow, the double teacher that blows, detects and tap, and the exhaust gas volumn that each stage produces is different.For adapting to the process characteristic of pneumatic steelmaking, the meridian acceleration axial-flow blower is driven by variable-frequency motor, realizes bleeding as required by changing rotating speed.Although this kind blower fan compact structure is simple, the height that boosts, condition range is wide, has following problem: 1, the petiole due to adjustable vane is arranged on wheel hub by nut, thereby described blade may become flexible under high speed, affects the reliable of work; 2, because its inlet box does not design drain pipe, if dust, ponding are arranged in fan passage, the blower fan that must topple is got rid of, and the workload of described eliminating dust and ponding is large, must cause the increase of operating cost.
Summary of the invention
The purpose of this utility model is to overcome the deficiencies in the prior art, and a kind of improved meridian acceleration axial-flow blower is provided, and with the reliability of raising work, and reduces operating cost.
The technical solution of the utility model: prevent that by locking plate is set adjustable vane from rotating, and improves the reliability of work.By drain pipe is set, realize online dust and the liquid dirt of getting rid of in inlet box.
meridian acceleration axial-flow blower described in the utility model, comprise inlet box, rotor, impeller housing, stator blade, Diffuser, the cooling air dish, air inlet side shaft envelope, exhaust side shaft seal and induced air pipe, one end of impeller housing is connected with inlet box, the other end of impeller housing is connected with Diffuser, stator blade is arranged on impeller housing, rotor is made of rotating shaft and the impeller that is arranged in rotating shaft, be positioned at inlet box and impeller housing, the two ends of its rotating shaft are arranged on respectively on air inlet side bearing and exhaust side bearing, the cooling air dish is arranged in the rotating shaft of rotor and near the air inlet side bearing, air inlet side shaft envelope is installed near the cooling air dish, its seal ring is arranged in the rotating shaft of rotor, its shell is fixed on inlet box, the exhaust side shaft seal is installed near the exhaust side bearing, its seal ring is arranged in the rotating shaft of rotor, its shell is fixed on impeller housing, induced air pipe is positioned at Diffuser, its air intake stretches out Diffuser, impeller comprises wheel hub, stator blade, adjustable vane and the locking plate that prevents that adjustable vane from rotating, stator blade is welded on wheel hub, the petiole of adjustable vane is provided with thread section, be connected with impeller hub with nut, the journal stirrup of locking plate is arranged on wheel hub, its the other end flange is close on described nut.
Meridian acceleration axial-flow blower described in the utility model, the bottom of its inlet box is provided with drain pipe.
The utlity model has following beneficial effect:
1, meridian acceleration axial-flow blower described in the utility model is owing to being provided with locking plate, with this locking plate one end be arranged on wheel hub, an end flange is close on nut, can prevent effectively that adjustable vane from rotating.
2, meridian acceleration axial-flow blower described in the utility model is because the bottom at its inlet box is provided with drain pipe, thereby blowdown in real time online, both avoided deposition dust and ponding in inlet box, can save the expense that blowdown produces again.
Description of drawings
Fig. 1 is the structural representation of meridian acceleration axial-flow blower described in the utility model;
Fig. 2 is the structural representation of impeller in meridian acceleration axial-flow blower described in the utility model;
Fig. 2 is the scheme of installation of locking plate;
Fig. 4 is the scheme of installation of drain pipe;
Fig. 5 is the structural representation of shaft seal.
In figure, 1-1: air inlet side bearing, 1-2: exhaust side bearing, 2-cooling air dish, 3-1-air inlet side shaft envelope, 3-2-exhaust side shaft seal, 4-inlet box, 5-rotor, 6-impeller housing, 7-stator blade, 8-Diffuser, 9-induced air pipe, 10-stator blade, 11-adjustable vane, 12-locking plate, 13-drain pipe, 14-inlet guide vane, 15-spring, 16-seal ring, 17-shell, 18-bolt, 19-wheel hub, 20-nut.
Embodiment
Also by reference to the accompanying drawings the structure of meridian acceleration axial-flow blower described in the utility model is described further below by embodiment.
In the present embodiment, the meridian acceleration axial-flow blower comprises inlet box 4, rotor 5, impeller housing 6, stator blade 7, Diffuser 8, cooling air dish 2, air inlet side shaft envelope 3-1, exhaust side shaft seal 3-2 and induced air pipe 9 as shown in Figure 1.The structure of inlet box 4 is provided with inlet guide vane 14 as shown in Figure 4 in it, so that coal gas is prewhirled, its underpart is provided with drain pipe 13, online dust in inlet box and liquid dirt are got rid of; One end of impeller housing 6 is connected with inlet box 4, and the other end of impeller housing 6 is connected with Diffuser 8, and stator blade 7 is arranged on impeller housing 6; Rotor 5 is made of rotating shaft and the impeller that is arranged in rotating shaft, is positioned at inlet box 4 and impeller housing 6, and the two ends of its rotating shaft are arranged on respectively on air inlet side bearing 1-1 and exhaust side bearing 1-2; The structure of impeller as shown in Figure 2 and Figure 3, comprise wheel hub 19, stator blade 10, adjustable vane 11 and locking plate 12, stator blade 10 is welded on wheel hub 19, the petiole of adjustable vane 11 is provided with thread section, be connected with wheel hub 19 with hexagon nut 20, the journal stirrup card of locking plate 12 or be inserted in aperture on wheel hub, its other end flange are close on a side of described hexagon nut 20 (six sides of hexagon nut).cooling air dish 2 is arranged in the rotating shaft of rotor 5, is used for carrying out cooling to the air inlet side bearing 1-1 of supporting rotor rotating shaft, air inlet side shaft envelope 3-1, the structure of exhaust side shaft seal 3-2 as shown in Figure 5, comprise seal ring 16 and shell 17, air inlet side shaft envelope 3-1 installs near the cooling air dish, its seal ring 16 passes through spring 15 bandings in the rotating shaft of rotor, its shell 17 is fixed on inlet box by bolt 18, exhaust side shaft seal 3-2 installs near exhaust side bearing 1-2, its seal ring 16 passes through spring 15 bandings in the rotating shaft of rotor, its shell 17 is fixed on impeller housing 6 by bolt 18, there is the body of calming the anger to enter by the suction port on shaft seal shell 17, realized that shaft seal prevents the function that coal gas leaks and air enters runner, induced air pipe 9 is positioned at Diffuser 8, and its air intake stretches out Diffuser, is used for introducing cold wind cooling to the exhaust side bearing 1-2 pressure of supporting rotor rotating shaft.
Claims (2)
1. meridian acceleration axial-flow blower, comprise inlet box (4), rotor (5), impeller housing (6), stator blade (7), Diffuser (8), cooling air dish (2), air inlet side shaft envelope (3-1), exhaust side shaft seal (3-2) and induced air pipe (9), one end of impeller housing (6) is connected with inlet box (4), the other end of impeller housing (6) is connected with Diffuser (8), stator blade (7) is arranged on impeller housing (6), rotor (5) is made of rotating shaft and the impeller that is arranged in rotating shaft, be positioned at inlet box (4) and impeller housing (6), the two ends of its rotating shaft are arranged on respectively on air inlet side bearing (1-1) and exhaust side bearing (1-2), cooling air dish (2) is arranged in the rotating shaft of rotor and near the air inlet side bearing, air inlet side shaft envelope (3-1) is installed near the cooling air dish, its seal ring (16) is arranged in the rotating shaft of rotor, its shell (17) is fixed on inlet box, exhaust side shaft seal (3-2) is installed near exhaust side bearing (1-2), its seal ring (16) is arranged in the rotating shaft of rotor, its shell (17) is fixed on impeller housing (6), induced air pipe (9) is positioned at Diffuser (8), its air intake stretches out Diffuser, it is characterized in that impeller comprises wheel hub (19), stator blade (10), adjustable vane (11) and prevent the locking plate (12) that adjustable vane rotates, stator blade is welded on wheel hub, the petiole of adjustable vane is provided with thread section, be connected with impeller hub with nut (20), the journal stirrup of locking plate (12) is arranged on wheel hub, its the other end flange is close on described nut (20).
2. meridian acceleration axial-flow blower according to claim 1, is characterized in that the bottom of inlet box (4) is provided with drain pipe (13).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220711389 CN203023121U (en) | 2012-12-21 | 2012-12-21 | Meridian accelerating axial flow fan |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220711389 CN203023121U (en) | 2012-12-21 | 2012-12-21 | Meridian accelerating axial flow fan |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203023121U true CN203023121U (en) | 2013-06-26 |
Family
ID=48647110
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201220711389 Expired - Lifetime CN203023121U (en) | 2012-12-21 | 2012-12-21 | Meridian accelerating axial flow fan |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203023121U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114934907A (en) * | 2022-04-29 | 2022-08-23 | 湖北双剑鼓风机制造有限公司 | Intelligent fan |
-
2012
- 2012-12-21 CN CN 201220711389 patent/CN203023121U/en not_active Expired - Lifetime
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114934907A (en) * | 2022-04-29 | 2022-08-23 | 湖北双剑鼓风机制造有限公司 | Intelligent fan |
| CN114934907B (en) * | 2022-04-29 | 2024-01-23 | 湖北双剑鼓风机股份有限公司 | Intelligent fan |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CX01 | Expiry of patent term | ||
| CX01 | Expiry of patent term |
Granted publication date: 20130626 |