CN201650801U - Double-impeller centrifugal blower - Google Patents
Double-impeller centrifugal blower Download PDFInfo
- Publication number
- CN201650801U CN201650801U CN2010201421363U CN201020142136U CN201650801U CN 201650801 U CN201650801 U CN 201650801U CN 2010201421363 U CN2010201421363 U CN 2010201421363U CN 201020142136 U CN201020142136 U CN 201020142136U CN 201650801 U CN201650801 U CN 201650801U
- Authority
- CN
- China
- Prior art keywords
- impeller
- double
- centrifugal blower
- blower according
- 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
Links
- 238000007789 sealing Methods 0.000 claims abstract description 21
- 230000008878 coupling Effects 0.000 claims abstract description 7
- 238000010168 coupling process Methods 0.000 claims abstract description 7
- 238000005859 coupling reaction Methods 0.000 claims abstract description 7
- IJGRMHOSHXDMSA-UHFFFAOYSA-N Atomic nitrogen Chemical compound N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 claims description 10
- 229910001114 SAF 2507 Inorganic materials 0.000 claims description 6
- 239000000463 material Substances 0.000 claims description 6
- 229910001220 stainless steel Inorganic materials 0.000 claims description 6
- 239000010935 stainless steel Substances 0.000 claims description 6
- 229910052757 nitrogen Inorganic materials 0.000 claims description 5
- 229910000831 Steel Inorganic materials 0.000 claims description 4
- 239000003638 chemical reducing agent Substances 0.000 claims description 4
- 239000003921 oil Substances 0.000 claims description 4
- 239000010959 steel Substances 0.000 claims description 4
- 229910000593 SAF 2205 Inorganic materials 0.000 claims description 3
- 210000004907 gland Anatomy 0.000 claims description 3
- 239000010687 lubricating oil Substances 0.000 claims description 3
- 239000007789 gas Substances 0.000 claims description 2
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 2
- 238000009434 installation Methods 0.000 description 3
- 235000019994 cava Nutrition 0.000 description 2
- 238000005260 corrosion Methods 0.000 description 2
- VNWKTOKETHGBQD-UHFFFAOYSA-N methane Chemical compound C VNWKTOKETHGBQD-UHFFFAOYSA-N 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 125000006850 spacer group Chemical group 0.000 description 2
- 230000003321 amplification Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000005540 biological transmission Effects 0.000 description 1
- 238000001816 cooling Methods 0.000 description 1
- 230000007797 corrosion Effects 0.000 description 1
- 230000001050 lubricating effect Effects 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 239000003345 natural gas Substances 0.000 description 1
- 238000003199 nucleic acid amplification method Methods 0.000 description 1
- 238000005057 refrigeration Methods 0.000 description 1
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- Structures Of Non-Positive Displacement Pumps (AREA)
Abstract
The utility model provides a double-impeller centrifugal blower, wherein a motor of the blower is connected with a speed-increasing gearbox through a diaphragm coupling, and adopts soft start; the rotor group comprises a secondary impeller and a balancing disc, and the outlet angles of the blades of the impeller range from 55 to 65 DEG; the housing thereof is horizontally split, a balance gas connecting pipe is arranged on the upper housing, a single intake air inlet is rectangular, and the air outlet is round; and the sealing elements of the blower consist of helixsealing and gas sealing elements. The double impeller centrifugal blower provided by the utility model has the advantages of small volume, light weight, high rotating speed and high efficiency.
Description
Technical field
The utility model relates to centrifugal blower, especially refers to have small volume, high efficiency double-impeller centrifugal blower.
Background technique
Centrifugal blower is mainly used in petrochemical industry, metallurgical industry, refrigeration industry, natural gas transport industry, constitute centrifugal blower primary clustering motor, casing, rotor set (impeller, main shaft, axle sleeve etc.), bearing housing, Sealing, intake grill, exhaust outlet or the like are arranged.Existing centrifugal blower mostly is single-stage, and as common binary fan impeller, for another the disclosed single-stage 3 d impeller of the specification of number of patent application 98245322.1, its machine air blast efficient of making is low, and wind pressure ratio is little, and flow losses are big.Slow-revving multistage blowers are also arranged, as being that disclosed multistage centrifugal blower fan and number of patent application are 200920063021.2 the disclosed multistage 3 d impeller blower fan of specification in 01204894.1 the specification at number of patent application, its inter-stage transmission efficiency is on the low side, the blower fan overall volume of making is big, weight is big, rotating speed is little, and efficient is low.
The model utility content
Model utility purpose: provide a kind of smaller size smaller that has, the high efficiency double-impeller centrifugal blower of higher voltage rise.
Technological scheme: the utility model adopts following scheme to realize the purpose of this utility model:
Motor with after the speed reducer that has step-up gear links to each other, connects rotor set by diaphragm coupling again; Rotor set comprises sencond stage impeller and a Balance disc, and the exit angle of blade is 55-65 ° in the impeller; Casing is the horizonally split formula, and single suction is gone into intake grill, and intake grill is a rectangle, and exhaust outlet is circular; Its Sealing contains oil sealing and air seal set.
In the utility model, motor is connected with soft starting device, and step-up gear can significantly improve the rotating speed of rotor set.Upper casing is provided with balance gas connecting tube, to reduce end thrust.
In the rotor set, the material of impeller is that the SAF2507 of anti-corrosion and high strength forges stainless steel.The angle of its outlet has guaranteed higher stage efficiency.The material of main shaft is the SAF2205 forged steel, intensity height, toughness height.The material of Balance disc is the SAF2507 stainless steel, and it makes time spent minimizing main shaft balance thrust.
Bearing contains bearing housing, spring bearing and thrust bearing, and bearing is placed in the bearing housing, and bearing housing relies on and connects the Lubricating-oil Station lubricating bearings, and guaranteeing has good cooling and lubricated under the high rotating speed of machine.The oil sealing that Sealing comprises is spiral sealing, and the screw thread that is mated is arranged on the main shaft; Other has the sealing gland of inflated with nitrogen, and the air pressure of nitrogen is higher than casing internal pressure 500mm water column.
Beneficial effect: double-impeller centrifugal blower of the present utility model, with traditional multistage low speed blower comparison, have the advantages that volume is little, in light weight, rotating speed is high, voltage rise is high, efficient is high, and parts are corrosion-resistant, lubricated and good seal performance, the life-span is permanent.
Description of drawings
Fig. 1 is a generalized section of the rotor set of the utility model amplification;
Fig. 2 is a general assembly schematic representation of the present utility model.
Among the figure: 1, main shaft; 2, the screw thread on the main shaft; 3, round nut; 4, locked spacer; 5, axle sleeve; 6, impeller; 7, blade; 8, Balance disc; 9, key; 10, the main shaft diameter of axle of impeller installation place; 11, the diameter of axle that caves inward; 12, the main shaft diameter of axle of both sides; 13, motor; 14, diaphragm coupling; 15, the speed reducer that has step-up gear; 16, coupling; 17, bearing housing; 18, casing; 19, rotor set; 20, Sealing; 21, exhaust outlet; 22, intake grill.
Embodiment
Make two impellers 6 with the SAF2507 stainless steel, the exit angle of its blade 7 is 60 °.The tangent line at place, blade summit and the angle of the impeller tangent line of locating by the blade summit are called exit angle.
Make main shaft 1 with the SAF2205 forged steel, leave the keyway that coupling 16 is installed on the main shaft 1, also leave the screw thread 2 that cooperates with its oil-sealing arrangement on the main shaft 1, the main shaft diameter of axle 10 of impeller installation place has the diameter of axle 11 that caves inward greater than the main shaft diameter of axle 12 of both sides on the main shaft 1 on the main shaft 1; Make the Balance disc 8 of corresponding specification with the SAF2507 stainless steel, or also select corresponding axle sleeve 5, round nut 3, locked spacer 4, key 9 for use, impeller 6, Balance disc 8, axle sleeve 5 are installed to the rotor set 19 that forms on the main shaft 1 as shown in Figure 1.
That selects appropriate size for use makes bearing, thrust bearing, puts into bearing housing 17, and bearing housing 17 connects Lubricating-oil Station.Choose the casing 18 of steel plate production technique split type again, this casing 18 contains single suction and goes into intake grill 22, and intake grill 22 is a rectangle, and exhaust outlet 21 is circular.Main shaft 1 two ends are selected the oil-sealing arrangement that contains spiral sealing for use and are contained the Sealing 20 of the air seal set of inflated with nitrogen.
Select the motor 13 of appropriate size at last for use, have the speed reducer 15 of step-up gear, diaphragm coupling 14.According to the component installation position shown in Figure 2 and the order of connection each parts are installed successively, and are carried out the cooperation, lubricated of each connected element, double-impeller centrifugal blower of the present utility model.
Claims (9)
1. double-impeller centrifugal blower, comprise motor (13), casing (18), rotor set (19), bearing housing (17), Sealing (20), intake grill (22), exhaust outlet (21), rotor set (19) contains impeller (6), main shaft (1), impeller (6) contains blade (7), wheel disc, it is characterized in that: motor (13) with after the speed reducer that has step-up gear (15) links to each other, connects rotor set (19) by diaphragm coupling (14) again; Its rotor set (19) comprises a sencond stage impeller (6) and a Balance disc (8), and the exit angle of blade (7) is 55-65 °; Casing (18) is the horizonally split formula, and single suction is gone into intake grill (22), and intake grill (22) is a rectangle, and exhaust outlet (21) is circular; Its Sealing (20) contains oil sealing and air seal set.
2. double-impeller centrifugal blower according to claim 1 is characterized in that: motor (13) is connected with soft starting device.
3. double-impeller centrifugal blower according to claim 1 is characterized in that: upper casing is provided with balance gas connecting tube.
4. double-impeller centrifugal blower according to claim 1 is characterized in that: the material of impeller (6) is the SAF2507 stainless steel.
5. double-impeller centrifugal blower according to claim 1 is characterized in that: the material of main shaft (1) is the SAF2205 forged steel.
6. double-impeller centrifugal blower according to claim 1 is characterized in that: the material of Balance disc (8) is the SAF2507 stainless steel.
7. double-impeller centrifugal blower according to claim 1 is characterized in that: oil sealing is spiral sealing, and the screw thread on the main shaft (2) is mated.
8. double-impeller centrifugal blower according to claim 1 is characterized in that: sealing gland is the nitrogen sealing gland, and the air pressure of nitrogen is higher than casing internal pressure 500mm water column.
9. double-impeller centrifugal blower according to claim 1 is characterized in that: bearing is placed in the bearing housing (17), and bearing housing (17) connects Lubricating-oil Station.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010201421363U CN201650801U (en) | 2010-03-25 | 2010-03-25 | Double-impeller centrifugal blower |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010201421363U CN201650801U (en) | 2010-03-25 | 2010-03-25 | Double-impeller centrifugal blower |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201650801U true CN201650801U (en) | 2010-11-24 |
Family
ID=43116035
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2010201421363U Expired - Fee Related CN201650801U (en) | 2010-03-25 | 2010-03-25 | Double-impeller centrifugal blower |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201650801U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101922461A (en) * | 2010-03-24 | 2010-12-22 | 南通大通宝富风机有限公司 | Double-impeller centrifugal blower |
| CN102588304A (en) * | 2012-02-10 | 2012-07-18 | 宁波大叶园林设备有限公司 | Centrifugal pump with swirl sprayer engine directly connected with high-speed function vane wheel and even-spinning labyrinth |
-
2010
- 2010-03-25 CN CN2010201421363U patent/CN201650801U/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101922461A (en) * | 2010-03-24 | 2010-12-22 | 南通大通宝富风机有限公司 | Double-impeller centrifugal blower |
| CN102588304A (en) * | 2012-02-10 | 2012-07-18 | 宁波大叶园林设备有限公司 | Centrifugal pump with swirl sprayer engine directly connected with high-speed function vane wheel and even-spinning labyrinth |
| CN102588304B (en) * | 2012-02-10 | 2014-04-16 | 宁波大叶园林设备有限公司 | Centrifugal pump with swirl sprayer engine directly connected with high-speed function vane wheel and even-spinning labyrinth |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20101124 Termination date: 20130325 |