CN108974950B - Effective loss-reducing type air-lock valve - Google Patents
Effective loss-reducing type air-lock valve Download PDFInfo
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- CN108974950B CN108974950B CN201810724055.5A CN201810724055A CN108974950B CN 108974950 B CN108974950 B CN 108974950B CN 201810724055 A CN201810724055 A CN 201810724055A CN 108974950 B CN108974950 B CN 108974950B
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- rotating shaft
- clamping plate
- plane
- fan blades
- face
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
- B65G—TRANSPORT OR STORAGE DEVICES, e.g. CONVEYORS FOR LOADING OR TIPPING, SHOP CONVEYOR SYSTEMS OR PNEUMATIC TUBE CONVEYORS
- B65G53/00—Conveying materials in bulk through troughs, pipes or tubes by floating the materials or by flow of gas, liquid or foam
- B65G53/34—Details
- B65G53/40—Feeding or discharging devices
- B65G53/46—Gates or sluices, e.g. rotary wheels
- B65G53/4608—Turnable elements, e.g. rotary wheels with pockets or passages for material
- B65G53/4616—Turnable elements, e.g. rotary wheels with pockets or passages for material with axis of turning parallel to flow
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
- B65G—TRANSPORT OR STORAGE DEVICES, e.g. CONVEYORS FOR LOADING OR TIPPING, SHOP CONVEYOR SYSTEMS OR PNEUMATIC TUBE CONVEYORS
- B65G53/00—Conveying materials in bulk through troughs, pipes or tubes by floating the materials or by flow of gas, liquid or foam
- B65G53/34—Details
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Structures Of Non-Positive Displacement Pumps (AREA)
Abstract
The invention provides an effective loss reduction type air-lock valve, which comprises: the fan blades are arranged on the shell, the rotating shaft and the fan blades with the even number of the total number; the shell consists of a first end face and a second end face which are parallel to each other and a side face which surrounds the periphery of the first end face and the second end face; the projections of the side surfaces on the surface vertical to the rotating shaft are elliptical surfaces cut by a first plane and a second plane which are parallel to each other, the first plane and the second plane are both vertical to the long axis direction of the elliptical surfaces, and a feed port and a discharge port are respectively arranged on the first plane and the second plane on the shell; the pivot is installed inside the casing, and the pivot coincides with the center pin of ellipsoid. In the invention, the shell is of an elliptical structure, and the fan blades gradually extend in the process of rotating from the direction of the minor axis of the fan blades to the direction of the major axis of the ellipse, so that the sealing performance of the fan blades between the feed inlet and the discharge outlet is ensured, the transitional abrasion between the fan blades and the inner wall of the shell is avoided, and the service life of the fan blades is prolonged.
Description
Technical Field
The invention relates to the technical field of closed fans, in particular to an effective loss reduction type closed fan.
Background
The air-tight machine is also called as an unloader, an air-tight valve and a rotary valve, the air-tight machine is divided into three types of common type, pressure-resistant type and high-temperature resistant type, the air-tight machine is arranged at a discharge outlet of the unloader working under negative pressure, the upper part of the air-tight machine receives materials discharged by the unloader, the air-tight machine plays a role in conveying the materials by a rotary impeller and plays a role in sealing, air is prevented from being sucked from the discharge outlet in the process of pneumatic conveying, and the normal discharge of the unloader is ensured.
The existing air-shutting machine is poor in sealing effect, when the air-shutting machine is used, due to the fact that sealing is not tight, the situation that air leakage and material leakage easily occur at the connecting positions of the two ends is caused, and the practicability of the air-shutting machine is reduced; or the impeller and the shell are excessively rubbed and easily damaged.
Disclosure of Invention
Based on the technical problems in the background art, the invention provides an effective loss reduction type air-lock valve.
The invention provides an effective loss reduction type air-lock valve, which comprises: the fan blades are arranged on the shell, the rotating shaft and the fan blades with the even number of the total number;
the shell consists of a first end face and a second end face which are parallel to each other and a side face which surrounds the periphery of the first end face and the second end face; the projections of the side surfaces on the surface vertical to the rotating shaft are elliptical surfaces cut by a first plane and a second plane which are parallel to each other, the first plane and the second plane are both vertical to the long axis direction of the elliptical surfaces, and a feed port and a discharge port are respectively arranged on the first plane and the second plane on the shell; the rotating shaft is arranged in the shell and is superposed with the central axis of the elliptical surface;
the fan blades are all arranged on the rotating shaft and extend along the radius direction of the rotating shaft, the fan blades are uniformly distributed along the circumferential direction of the rotating shaft, and a pair of fan blades positioned on the same diameter extending direction of the rotating shaft forms a fan blade pair; the fan blades are of a telescopic structure, the distance between the vertexes of the two fan blades is used as a forbidden length under the condition that the two fan blades in the fan blade pair are in the original length state, the distance between the first plane and the second plane is used as a first length, and the forbidden length is greater than the minor axis length of the elliptical surface and smaller than the first length; the elliptical surface is provided with two diameters which are equal to the sealing length, and the included angle between the two diameters is larger than or equal to the included angle between the adjacent fan blades on any two surfaces; the length of the fan blade is equal to the distance between the first end face and the second end face.
Preferably, the fan blade comprises a first clamping plate, a second clamping plate, a scraper blade and an elastic sealing strip, the first clamping plate and the second clamping plate are arranged on a rotating shaft in parallel, the width of a gap between the first clamping plate and the second clamping plate is equal to the thickness of the scraper blade, the elastic sealing strip is bonded on the rotating shaft and is positioned between the first clamping plate and the second clamping plate, and the scraper blade is inserted into the gap between the first clamping plate and the second clamping plate and is bonded with the elastic sealing strip; the scraper extends in the width direction along the radius direction of the rotating shaft.
Preferably, at least one of the first clamping plate and the second clamping plate has a length equal to the distance between the first end surface and the second end surface, and the scraper has a length equal to the distance between the first end surface and the second end surface.
Preferably, the lengths of the first clamping plate, the second clamping plate and the elastic sealing strip are equal to the distance between the first end face and the second end face.
Preferably, the elastic sealing strip is of a rubber structure.
Preferably, the fan blade is composed of a blade and a flexible sheet, the blade is arranged on the rotating shaft, and the flexible sheet is arranged on one side of the blade far away from the rotating shaft.
Preferably, the flexible sheet is of a rubber construction.
According to the effective loss reduction type closed fan, the elliptical surface is provided with two diameters equal to the blocking length, and the included angle between the two diameters is larger than or equal to the included angle between any two adjacent fan blades. So, the flabellum rotates the in-process, and at any moment, two flabellums that have at least a pair of flabellum centering lean on the relative both sides on the casing respectively to realize the isolation of feed inlet and discharge gate. In the invention, the shell is of an elliptical structure, and the fan blades gradually extend in the process of rotating from the direction of the minor axis of the fan blades to the direction of the major axis of the ellipse, so that the sealing performance of the fan blades between the feed inlet and the discharge outlet is ensured, the transitional abrasion between the fan blades and the inner wall of the shell is avoided, and the service life of the fan blades is prolonged. In the invention, the length of the fan blades is equal to the distance between the first end surface and the second end surface along the axial direction of the shell, so that the interior of the shell is divided into a plurality of mutually independent chambers through the fan blades, and the absolute isolation of the chamber where the feed inlet is positioned and the chamber where the discharge outlet is positioned is ensured, thereby ensuring the air-closing performance of the air-closing machine.
According to the invention, the shell is an elliptical surface cut by the first plane and the second plane, and compared with the case adopting a complete elliptical surface, the volume occupied by the shell is favorably reduced, and the arrangement of a feed inlet and a discharge outlet is facilitated. In addition, the lines on the surface of the shell are in smooth transition, so that the processing is convenient.
Drawings
Fig. 1 is a structural diagram of an effective loss reduction type closed fan according to the present invention;
fig. 2 is a structure diagram of a closed fan in embodiment 1.
Detailed Description
Referring to fig. 1, the present invention provides an effective loss reduction type wind turbine, including: a shell 1, a rotating shaft 2 and fan blades 3 with even number.
The housing 1 is composed of a first end face and a second end face which are parallel to each other, and a side face which surrounds the outer peripheries of the first end face and the second end face. The projections of the side surfaces on the surface vertical to the rotating shaft 2 are elliptical surfaces cut by a first plane 1-1 and a second plane 1-2 which are parallel to each other, the first plane 1-1 and the second plane 1-2 are both vertical to the long axis direction of the elliptical surfaces, and a feeding hole and a discharging hole are respectively arranged on the first plane 1-1 and the second plane 1-2 on the shell 1. The rotating shaft 2 is arranged inside the shell 1, and the rotating shaft 2 coincides with the central axis of the elliptical surface. In this embodiment, the housing 1 is an elliptical surface cut by the first plane 1-1 and the second plane 1-2, which is beneficial to reducing the volume occupied by the housing and facilitating the arrangement of the feed inlet and the discharge outlet compared with the case 1 which is a complete elliptical surface.
Flabellum 3 all installs on pivot 2 and extends along 2 direction of radius of pivot, and flabellum 3 constitutes a flabellum pair along 2 circumference evenly distributed of pivot, a pair of flabellum 3 that lie in 2 same diameter extending direction of pivot. The fan blades 3 are of a telescopic structure, the distance between the vertexes of the two fan blades 3 is used as a forbidden length under the original length state of the two fan blades 3 in the fan blade pair, the distance between the first plane 1-1 and the second plane 1-2 is used as a first length, and the forbidden length is larger than the minor axis length of the elliptical surface and smaller than the first length. The elliptical surface is provided with two diameters equal to the sealing length, and the included angle between the two diameters is larger than or equal to the included angle between the adjacent fan blades 3 on any two sides. So, flabellum 3 rotates the in-process, and at any moment, has two flabellums 3 of a pair of flabellum centering to lean on the relative both sides on casing 1 respectively to realize the isolation of feed inlet and discharge gate. In this embodiment, casing 1 is oval structure, rotates to the in-process of major axis direction at flabellum 3 to oval minor axis direction, and flabellum 3 extends gradually to guaranteed the leakproofness that flabellum 3 keeps apart between feed inlet and discharge gate promptly, avoided the transition wearing and tearing between flabellum 3 and the casing 1 inner wall again, be favorable to improving flabellum 3 life. In this embodiment, along 1 axial direction of casing, the length of flabellum 3 equals the distance between first terminal surface and the second terminal surface to divide into a plurality of mutually independent cavities through flabellum 3 with casing 1 is inside, and guarantee the absolute isolation of feed inlet place cavity and discharge gate place cavity, thereby guarantee to close the wind performance of fan.
Example 1
In this embodiment, the fan blade 3 includes a first clamping plate 3-1, a second clamping plate 3-2, a scraper 3-3 and an elastic sealing strip 3-4, the first clamping plate 3-1 and the second clamping plate 3-2 are parallel to each other and are mounted on the rotating shaft 2, the width of a gap between the first clamping plate 3-1 and the second clamping plate 3-2 is equal to the thickness of the scraper 3-3, the elastic sealing strip 3-4 is adhered to the rotating shaft 2 and is located between the first clamping plate 3-1 and the second clamping plate 3-2, and the scraper 3-3 is inserted into the gap between the first clamping plate 3-1 and the second clamping plate 3-2 and is adhered to the elastic sealing strip 3-4. The scrapers 3-3 extend in the width direction along the radius direction of the rotating shaft 2. Therefore, in the rotating process of the rotating shaft 2, the scraping plates 3-3 stretch along with the change of the inner diameter of the side surface of the shell 1, and the space inside the shell 1 is divided by the fan blades 3; meanwhile, the arrangement of the wantonly overtime and the second clamping plate 3-2 is beneficial to the extension of the scraper 3-3 along the radius direction of the rotating shaft 2, so that the extension reliability of the scraper 3-3 in the rotating process along with the rotating shaft 2 is ensured.
In this embodiment, at least one of the first clamping plate 3-1 and the second clamping plate 3-2 has a length equal to the distance between the first end surface and the second end surface, and the scraper 3-3 has a length equal to the distance between the first end surface and the second end surface, so as to prevent the feed inlet and the discharge outlet from being conducted from both ends of the rotating shaft 2 inside the housing 1. Further, in order to ensure the sealing performance of the fan blade 3 in the isolation shell 1, the lengths of the first clamping plate 3-1, the second clamping plate 3-2 and the elastic sealing strip 3-4 are all equal to the distance between the first end surface and the second end surface. The elastic sealing strips 3-4 are of rubber structures.
Example 2
In the embodiment, the fan blade 3 is composed of a blade and a film, the blade is installed on the rotating shaft 2, and the film is installed on one side of the blade far away from the rotating shaft 2. The flexible sheet is of a rubber structure. Therefore, the gap between the blade and the shell 1 can be sealed through the film, the wind closing performance of the wind closing machine is guaranteed, the blade is prevented from scratching the inner wall of the shell, and abrasion is reduced.
The above description is only for the preferred embodiment of the present invention, but the scope of the present invention is not limited thereto, and any person skilled in the art should be considered to be within the technical scope of the present invention, and the technical solutions and the inventive concepts thereof according to the present invention are equivalent to or changed within the technical scope of the present invention.
Claims (6)
1. The utility model provides an effective loss reduction type closes fan which characterized in that includes: the fan comprises a shell (1), a rotating shaft (2) and fan blades (3) with even number of total amount;
the shell (1) is composed of a first end face and a second end face which are parallel to each other and a side face which surrounds the peripheries of the first end face and the second end face; the projections of the side surfaces on the surface vertical to the rotating shaft (2) are elliptical surfaces cut by a first plane (1-1) and a second plane (1-2) which are parallel to each other, the first plane (1-1) and the second plane (1-2) are both vertical to the long axis direction of the elliptical surfaces, and a feed port and a discharge port are respectively arranged on the first plane (1-1) and the second plane (1-2) on the shell (1); the rotating shaft (2) is arranged in the shell (1), and the rotating shaft (2) is superposed with the central axis of the elliptical surface;
the fan blades (3) are all arranged on the rotating shaft (2) and extend along the radius direction of the rotating shaft (2), the fan blades (3) are uniformly distributed along the circumferential direction of the rotating shaft (2), and a pair of fan blades (3) positioned on the same diameter extending direction of the rotating shaft (2) form a fan blade pair; the fan blades (3) are of telescopic structures, the distance between the vertexes of the two fan blades (3) is used as a forbidden length under the original length state of the two fan blades (3) in the fan blade pair, the distance between the first plane (1-1) and the second plane (1-2) is used as a first length, and the forbidden length is greater than the minor axis length of the elliptical surface and smaller than the first length; the elliptical surface is provided with two diameters which are equal to the sealing length, and the included angle between the two diameters is larger than or equal to the included angle between the adjacent fan blades (3) on any two surfaces; the length of the fan blade (3) is equal to the distance between the first end surface and the second end surface;
the fan blade (3) comprises a first clamping plate (3-1), a second clamping plate (3-2), a scraper blade (3-3) and an elastic sealing strip (3-4), the first clamping plate (3-1) and the second clamping plate (3-2) are parallel to each other and are arranged on the rotating shaft (2), the width of a gap between the first clamping plate (3-1) and the second clamping plate (3-2) is equal to the thickness of the scraper blade (3-3), the elastic sealing strip (3-4) is adhered to the rotating shaft (2) and is positioned between the first clamping plate (3-1) and the second clamping plate (3-2), and the scraper blade (3-3) is inserted into the gap between the first clamping plate (3-1) and the second clamping plate (3-2) and is adhered to the elastic sealing strip (3-4); the scrapers (3-3) extend in the width direction along the radius direction of the rotating shaft (2).
2. The effective loss-reducing type closed fan according to claim 1, wherein at least one of the first clamping plate (3-1) and the second clamping plate (3-2) has a length equal to a distance between the first end surface and the second end surface, and the scraper (3-3) has a length equal to a distance between the first end surface and the second end surface.
3. The efficient loss-reducing type wind-break ventilator according to claim 1, wherein the lengths of the first clamping plate (3-1), the second clamping plate (3-2) and the elastic sealing strip (3-4) are equal to the distance between the first end face and the second end face.
4. The efficient loss-reducing type wind-break ventilator according to claim 1, wherein the elastic sealing strips (3-4) are of a rubber structure.
5. The effective loss-reducing type closed-loop fan according to claim 1, wherein the fan blades (3) are composed of blades and a flexible sheet, the blades are mounted on the rotating shaft (2), and the flexible sheet is mounted on the side of the blades away from the rotating shaft (2).
6. The effective loss reduction type air-closing machine according to claim 5, wherein the flexible sheet is of a rubber structure.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810724055.5A CN108974950B (en) | 2018-07-04 | 2018-07-04 | Effective loss-reducing type air-lock valve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810724055.5A CN108974950B (en) | 2018-07-04 | 2018-07-04 | Effective loss-reducing type air-lock valve |
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| Publication Number | Publication Date |
|---|---|
| CN108974950A CN108974950A (en) | 2018-12-11 |
| CN108974950B true CN108974950B (en) | 2021-01-22 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201810724055.5A Active CN108974950B (en) | 2018-07-04 | 2018-07-04 | Effective loss-reducing type air-lock valve |
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| CN (1) | CN108974950B (en) |
Citations (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB103540A (en) * | 1916-02-05 | 1917-02-01 | Babcock & Wilcox Co | Improvements relating to Rotary Feeding Devices for Feeding Coal, Sand and like Materials into Conveyors, Chutes, or like Devices. |
| CN2051220U (en) * | 1989-03-07 | 1990-01-17 | 王明义 | Vane wheel supply apparatus |
| CN2100375U (en) * | 1990-09-20 | 1992-04-01 | 吴月浦 | Air shutter with a movable blades board |
| CN1349593A (en) * | 1999-03-05 | 2002-05-15 | 本田技研工业株式会社 | Rotary fluid machinery, vane fluid machinery, and waste heat recovery device of internal combustion engine |
| DE20205932U1 (en) * | 2002-04-16 | 2002-07-04 | Coperion Waeschle Gmbh & Co Kg | Cell wheel sluice |
| DE10119306A1 (en) * | 2001-04-19 | 2002-10-24 | Buehler Ag | Cell wheel for dispensing bulk materials has anti-wear sleeve consisting of two half-shells bolted on to its inner surface |
| DE10317824A1 (en) * | 2002-11-19 | 2004-06-17 | SMD Fördertechnik GmbH | Cell wheel for dust collector has rotor counter-wall made up of ceramic sections, seal between rotor and counter-wall being improved by springs on bolts acting vertically on cell wall casing |
| CN203048181U (en) * | 2012-12-12 | 2013-07-10 | 平顶山市威太电力设备有限公司 | Electric cindervalve with elastic sealing device impeller |
| CN207090346U (en) * | 2017-07-14 | 2018-03-13 | 中昊黑元化工研究设计院有限公司 | A kind of airtight valve with flexible body |
-
2018
- 2018-07-04 CN CN201810724055.5A patent/CN108974950B/en active Active
Patent Citations (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB103540A (en) * | 1916-02-05 | 1917-02-01 | Babcock & Wilcox Co | Improvements relating to Rotary Feeding Devices for Feeding Coal, Sand and like Materials into Conveyors, Chutes, or like Devices. |
| CN2051220U (en) * | 1989-03-07 | 1990-01-17 | 王明义 | Vane wheel supply apparatus |
| CN2100375U (en) * | 1990-09-20 | 1992-04-01 | 吴月浦 | Air shutter with a movable blades board |
| CN1349593A (en) * | 1999-03-05 | 2002-05-15 | 本田技研工业株式会社 | Rotary fluid machinery, vane fluid machinery, and waste heat recovery device of internal combustion engine |
| DE10119306A1 (en) * | 2001-04-19 | 2002-10-24 | Buehler Ag | Cell wheel for dispensing bulk materials has anti-wear sleeve consisting of two half-shells bolted on to its inner surface |
| DE20205932U1 (en) * | 2002-04-16 | 2002-07-04 | Coperion Waeschle Gmbh & Co Kg | Cell wheel sluice |
| DE10317824A1 (en) * | 2002-11-19 | 2004-06-17 | SMD Fördertechnik GmbH | Cell wheel for dust collector has rotor counter-wall made up of ceramic sections, seal between rotor and counter-wall being improved by springs on bolts acting vertically on cell wall casing |
| CN203048181U (en) * | 2012-12-12 | 2013-07-10 | 平顶山市威太电力设备有限公司 | Electric cindervalve with elastic sealing device impeller |
| CN207090346U (en) * | 2017-07-14 | 2018-03-13 | 中昊黑元化工研究设计院有限公司 | A kind of airtight valve with flexible body |
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| CN108974950A (en) | 2018-12-11 |
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