CN203717453U - Fan air inlet guide blade valve - Google Patents
Fan air inlet guide blade valve Download PDFInfo
- Publication number
- CN203717453U CN203717453U CN201320861764.0U CN201320861764U CN203717453U CN 203717453 U CN203717453 U CN 203717453U CN 201320861764 U CN201320861764 U CN 201320861764U CN 203717453 U CN203717453 U CN 203717453U
- Authority
- CN
- China
- Prior art keywords
- annular ring
- air inlet
- bar
- annular
- slide block
- 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 discloses a fan air inlet guide blade valve, comprising a fan air inlet; a guide blade valve body is arranged on the air inlet; the body comprises a first annular ring; a plurality of first through holes are formed in one side of the first annular ring; first rods are arranged in the first through holes; first rods at the outside of the first annular ring are bent to fixedly connect second rods; guide blades are fixedly arranged at the other ends of the first rods; an annular chute is arranged at the other side of the first annular ring; a second annular ring is arranged on the annular chute; the second annular ring is provided with a plurality of slots; the second rods are provided with sliders sliding in a slot; a second through hole is formed in the side wall of the air inlet; a driving shaft is arranged in the second through hole in a penetrating mode; one end, close to the first annular ring, of the driving shaft is provided with a crankshaft provided with a slider; the slider slides in the slot. The distance between the fan air inlet guide blade valve and the air inlet blade of the fan is shorter, and the pre-rotation effect is good.
Description
Technical field
The utility model relates to blower fan technical field, and specifically a kind of air inlet stator valve, for changing the high-efficiency low-resistance stator valve of inlet flow rate.
Background technique
In the time of blower fan and the joint work of user's pipe network system, General Requirements operation point is exactly the operating point for design of blower.But in actual motion, because user's operating mode may have variation, for example, require the flow of gas or pressure to increase and decrease to some extent, at this moment just need to change the operating point of blower, to meet user's requirement.The position of this change blower operating point, is just called fan performance adjusting to adapt to the method for new operating mode.
The method of centrifugal fan property regulation generally has two kinds at present: one, blower speed regulates.In order to convert rotating speed, will use direct current unit or conversion method, cost is very high like this, and motor device complex structure.And when rotating speed diminishes, flow and pressure reduce sharply, and are difficult for meeting client's working condition requirement.
Two, blower Flow-rate adjustment: 1. blower export throttling, 2. blower inlet throttling, 3. adopts rotating diffuser vane to regulate, and 4. adopts rotating entry guide vane.
1. blower export throttling: method is the simplest.But take the regulating method of this artificial increasing resistance of pipe system, be consumed in completely to overcome by valve and turn down and on the supplementary loss that causes, very uneconomical, it declines the efficiency of whole device greatly, especially when compressor performance curves is steeper, and adjust flux is when larger, its shortcoming is just more outstanding.
2. blower inlet throttling: although regulate and have good Economy than outlet throttling, but still bring certain restriction loss, and when throttling, easily make the air-flow after valve keep uniformity to worsen, reduced blower working efficiency.
3. rotating diffuser vane regulates: to reducing Surging flow, expand steady working condition scope very effective, Economy might as well, but structure is the most complicated in airflow regulating method, and, it belongs to the adjusting in process of air delivery, and the pressure loss and efficiency are had a certain impact, and uses seldom separately.
4. rotating entry guide vane: regulation range is wider, Economy is better than inlet throttle inlet adjusting, and in gas flow-regulating, with entry guide vane optimum, but structure is still complicated.
Summary of the invention
The utility model is for prior art deficiency, designed a kind of low-resistance, intake grill stator valve efficient, simple and reliable for structure.
In order to solve the problems of the technologies described above, the utility model is solved by following technical proposals: a kind of air inlet stator valve, comprise air inlet, on described intake grill, be provided with stator valve body, described body comprises the first annular ring, on described the first annular ring, a side is provided with some the first through holes, in described the first through hole, be provided with the first bar, on first bar in described the first annular ring outside, bending is fixedly connected with the second bar, the described first bar the other end is fixedly installed guide vane, on described the first annular ring, opposite side is provided with annular groove, on described annular groove, be provided with the second annular ring, on described the second annular ring, be provided with some grooves, on described the second bar, be provided with slide block, described slide block slides in described groove, described intake grill sidewall is provided with the second through hole, in described the second through hole, be equipped with live axle, described live axle is provided with and cranks arm near described first annular ring one end, on described cranking arm, be provided with slide block, described slide block slides in described groove.This air inlet stator valve passes through drive shaft turns, slipper push the second annular ring on cranking arm rotates, thereby the upper groove of the second annular ring coordinate with slide block make first bar rotate realize guide vane rotate, the angle that workman can regulate guide vane to rotate according to the needs of operating mode, the effect of prewhirling that guide vane plays air and enters blower fan, and because the distance between this stator valve and blower fan air intake blade is short, therefore prewhirl effective.
In technique scheme, preferred, on described live axle, the other end is provided with handle.Handle is set and facilitates drive shaft turns.
The utility model compared with prior art, there is following beneficial effect: this air inlet stator of the utility model valve passes through drive shaft turns, slipper push the second annular ring on cranking arm rotates, thereby the upper groove of the second annular ring coordinate with slide block make first bar rotate realize guide vane rotate, the angle that workman can regulate guide vane to rotate according to the needs of operating mode, the effect of prewhirling that guide vane plays air and enters blower fan, and because the distance between this stator valve and blower fan air intake blade is short, therefore prewhirl effective.
Brief description of the drawings
Fig. 1 is the structural representation of stator valve.
Fig. 2 is the structural representation of the first annular ring.
Fig. 3 is the structural representation that blade is connected with the first bar, the second bar.
Fig. 4 is the schematic diagram that stator valve is arranged on air inlet.
Embodiment
Below in conjunction with accompanying drawing and embodiment, the utility model is described in further detail: referring to Fig. 1 to Fig. 4, a kind of air inlet stator valve, comprise air inlet 1, on described intake grill 1, be provided with stator valve body 2, described body 2 comprises the first annular ring 3, on described the first annular ring 3, a side is provided with some the first through holes 31, in described the first through hole 31, be provided with the first bar 4, on first bar 4 in described the first annular ring 3 outsides, bending is fixedly connected with the second bar 5, described first bar 4 the other ends are fixedly installed guide vane 6, on described the first annular ring 3, opposite side is provided with annular groove 32, on described annular groove 32, be provided with the second annular ring 7, on described the second annular ring 7, be provided with some grooves 71, on described the second bar 5, be provided with slide block 51, described slide block 51 is in the interior slip of described groove 71, described intake grill 1 sidewall is provided with the second through hole 11, in described the second through hole 11, be equipped with live axle 8, described live axle 8 is provided with and cranks arm 81 near described first annular ring 3 one end, described cranking arm on 81 is provided with slide block 51, described slide block 51 is in the interior slip of described groove 71.This air inlet stator valve rotates by live axle 8, the slide block 51 of cranking arm on 81 promotes the second annular ring 7 and rotates, thereby the upper groove 71 of the second annular ring 7 coordinates with slide block 51 and the first bar 4 is rotated realize guide vane 6 to rotate, the angle that workman can regulate guide vane 6 to rotate according to the needs of operating mode, the effect of prewhirling that guide vane 6 plays air and enters blower fan, and because the distance between this stator valve body 1 and blower fan air intake blade is short, therefore prewhirl effective.On described live axle 8, the other end is provided with handle 82.Handle 82 is set facilitates live axle 8 to rotate.
The metal of the above-mentioned parts respectively with the relative sliding graphite of going out to be all embedded with, has not only avoided the hard friction between same metal material and has caused parts damages, has also played the lubrication between metal, and while making to open stator valve, moment of torsion is less.
Claims (2)
1. an air inlet stator valve, comprise air inlet (1), on described intake grill (1), be provided with stator valve body (2), it is characterized in that: described body (2) comprises the first annular ring (3), the upper side of described the first annular ring (3) is provided with some the first through holes (31), in described the first through hole (31), be provided with the first bar (4), the upper bending of the first bar (4) in described the first annular ring (3) outside is fixedly connected with the second bar (5), described the first bar (4) the other end is fixedly installed guide vane (6), the upper opposite side of described the first annular ring (3) is provided with annular groove (32), on described annular groove (32), be provided with the second annular ring (7), on described the second annular ring (7), be provided with some grooves (71), on described the second bar (5), be provided with slide block (51), described slide block (51) slides in described groove (71), described intake grill (1) sidewall is provided with the second through hole (11), in described the second through hole (11), be equipped with live axle (8), described live axle (8) is provided with near described the first annular ring (3) one end crank arm (81), on described cranking arm (81), be provided with slide block (51), described slide block (51) slides in described groove (71).
2. a kind of air inlet stator valve as claimed in claim 1, is characterized in that: the upper the other end of described live axle (8) is provided with handle (82).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320861764.0U CN203717453U (en) | 2013-12-25 | 2013-12-25 | Fan air inlet guide blade valve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320861764.0U CN203717453U (en) | 2013-12-25 | 2013-12-25 | Fan air inlet guide blade valve |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203717453U true CN203717453U (en) | 2014-07-16 |
Family
ID=51156611
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201320861764.0U Expired - Fee Related CN203717453U (en) | 2013-12-25 | 2013-12-25 | Fan air inlet guide blade valve |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203717453U (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106286406A (en) * | 2016-10-25 | 2017-01-04 | 珠海格力电器股份有限公司 | Rotary mechanical structure and vane diffuser thereof |
| CN108980087A (en) * | 2018-09-20 | 2018-12-11 | 重庆通用工业(集团)有限责任公司 | A kind of adaptively folding valving and centrifugal fan |
| CN112682356A (en) * | 2020-12-24 | 2021-04-20 | 钛灵特压缩机无锡有限公司 | Air inlet guide vane for gear speed-increasing centrifugal compressor |
| CN113466408A (en) * | 2021-06-23 | 2021-10-01 | 新疆生产建设兵团第八师生态环境监测站(石河子市生态环境监测站) | Mobile atmospheric ozone monitoring and processing device and method |
-
2013
- 2013-12-25 CN CN201320861764.0U patent/CN203717453U/en not_active Expired - Fee Related
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106286406A (en) * | 2016-10-25 | 2017-01-04 | 珠海格力电器股份有限公司 | Rotary mechanical structure and vane diffuser thereof |
| CN106286406B (en) * | 2016-10-25 | 2018-04-20 | 珠海格力电器股份有限公司 | Rotary mechanical structure and vane diffuser thereof |
| CN108980087A (en) * | 2018-09-20 | 2018-12-11 | 重庆通用工业(集团)有限责任公司 | A kind of adaptively folding valving and centrifugal fan |
| CN108980087B (en) * | 2018-09-20 | 2024-03-08 | 重庆通用工业(集团)有限责任公司 | Self-adaptive opening and closing valve device and centrifugal ventilator |
| CN112682356A (en) * | 2020-12-24 | 2021-04-20 | 钛灵特压缩机无锡有限公司 | Air inlet guide vane for gear speed-increasing centrifugal compressor |
| CN112682356B (en) * | 2020-12-24 | 2024-04-30 | 钛灵特压缩机无锡有限公司 | Inlet guide vane for gear speed-increasing centrifugal compressor |
| CN113466408A (en) * | 2021-06-23 | 2021-10-01 | 新疆生产建设兵团第八师生态环境监测站(石河子市生态环境监测站) | Mobile atmospheric ozone monitoring and processing device and method |
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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 |
Granted publication date: 20140716 Termination date: 20201225 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |