CN202157973U - Large-size double suction centrifugal blower - Google Patents
Large-size double suction centrifugal blower Download PDFInfo
- Publication number
- CN202157973U CN202157973U CN2011202900478U CN201120290047U CN202157973U CN 202157973 U CN202157973 U CN 202157973U CN 2011202900478 U CN2011202900478 U CN 2011202900478U CN 201120290047 U CN201120290047 U CN 201120290047U CN 202157973 U CN202157973 U CN 202157973U
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- transmission main
- centrifugal blower
- double suction
- main shaft
- impeller
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Abstract
The utility model discloses a large-size double suction centrifugal blower, comprising a shell, an air inlet box, an adjustment damper, a blade and a transmission main axle with two ends respectively provided with a support bearing seat and a positioning bearing seat, wherein a through hole is opened on a back side plate of the shell; the blade is mounted on the transmission main axle by an axle disk, the transmission main axle in a hollow structure is provided with a guide pipe inside, one end of the transmission main axle is provided with a collector and a rotary joint; a cooling cavity, an inlet and an outlet which are communicated with a flow passage port on the guide pipe are arranged in the axle disk; a diversion disk and a support rib are arranged in the blade, the blade is a double-suction structure in which double wheel covers commonly use one wheel disk, the wheel disk is connected with the axle disk by a rivet or a bolt and an air inlet is arranged on the shell; a coupling is arranged on another end of the transmission main axle. The large-size double suction centrifugal blower has features of low operation cost, long service life, capability of transporting a dry air with a temperature higher than 800 DEG C or an air with relative higher pressure rise and large flow, environmental protection, high efficiency and energy saving.
Description
Technical field the utility model belongs to the ventilation equipment technical field, relates to the large centrifugal ventilator that the big flow of a kind of high efficiency can carry high-temperature gas and high pressure to rise, and especially relates to a kind of large-scale double suction and goes into centrifugal blower.
The background technique centrifugal blower is owing to have simple in structure, low cost of manufacture, can carry big flow gas and can realize the characteristics of elevated pressures; Be used widely in various fields such as chemical industry, metallurgy, papermaking, food; But because its impeller only wheel disc and main shaft independent support; Add structural features such as the impeller width is big, make blower fan at the big flow of needs and big pressure and wheel speed when higher, be prone to cause bending blade and damage machine; Simultaneously, when carrying high-temperature gas, owing to reel and wheel disc thickness do not wait and reasons such as rivet or bolt thermal expansion coefficient, be prone to cause rivet or bolt looseness, the heat transmission of high-temperature gas also can cause the damage of bearing.Therefore, general big flow centrifugal blower generally adopts slow-speed of revolution running and does not reach and require pressure, adopts the high temperature resistant stainless steel material when perhaps carrying high-temperature gas, but carries the high-temperature gas can not be above 500 ℃.
To these problems; The technician reaches and outside cooling of bearing is handled through adopting high temperature resistant stainless steel; Transmit heat and improved high temperature strength though can reduce part, can't eliminate hub disk reel rivet expanded by heating and cause that the gap changes and cause loosing of rivet, can not get rid of impeller single-wheel dish and support the cantilever centrifugal force that causes and destroy; So the normal temperature centrifugal blower rotating speed of general big specific speed is difficult for surpassing 110m/s, the blower fan transportation gas temperature is no more than 500 ℃ during high temperature.
The purpose of model utility content the utility model is to solve the technical problem that there is the resistance to high temperature difference in existing technology.Provide a kind of operating cost low, long service life, the large-scale double suction that can carry the dry gas that is higher than 800 ℃ or carry elevated pressures to rise the high-efficient energy-saving environment friendly that flow is big is simultaneously gone into centrifugal blower.
For realizing above-mentioned purpose, the large-scale double suction of the utility model is gone into centrifugal blower, comprises that casing, inlet box, damper, impeller and two ends are respectively equipped with the transmission main shaft of supporting bearing base and positioning shaft bearing; Have through hole on the back side panel of said casing; Impeller is installed on the transmission main shaft through reel, and its main points are to state transmission main shaft to be and to establish honeycomb duct in the hollow-core construction, and an end of transmission main shaft is provided with trap and swivel joint; The through-flow mouthful of inlet/outlet that I, II are connected that is provided with cooling chamber in the said reel and is provided with honeycomb duct; Said impeller is provided with shunting disk and supporting rib, and said impeller is the double suction structure that two-wheel covers shared wheel disc, and wheel disc is connected by rivet or bolt with reel, and casing is provided with intake grill; The other end of said transmission main shaft is provided with coupling.
The supporting bearing base and the positioning shaft bearing at said transmission main shaft two ends are provided with Sealing.
Said intake grill is asymmetry awl arcuation.
Said swivel joint is provided with cooling liquid inlet.
Said trap is provided with cooling liquid outlet, advances trap mouth and mechanical seal.
Said impeller is provided with wheel cap mouth circle.
The supporting bearing base at said transmission main shaft two ends and positioning shaft bearing peripheral hardware water interlayer casing.
The cooling medium that feeds in the said honeycomb duct can be liquid such as water, oil or saponification liquor, also can be gases such as low temperature nitrogen, air.
The utility model increases blade rigid owing to be provided with shunting disk and three-dimensional rinforcement bar greatly, and impeller can be engaged in higher rotary speed working or higher temperature gas delivery, and efficient improves; Owing to adopted hollow shaft design and inside honeycomb duct is housed; Make near the bearing portion that reaches of impeller rivet directly from the inner cooling of parts; Eliminated blower fan because of high speed rotating and conveying loosing of rivet and damage of bearings that high-temperature gas caused; Facts have proved and to carry high-temperature gas more than 800 ° ℃, really realize environment-friendly high-efficiency energy-saving.
Description of drawings Fig. 1 is the utility model structural representation;
Fig. 2 is a B portion partial enlarged drawing among Fig. 1;
Fig. 3 is an A portion partial enlarged drawing among Fig. 1;
Fig. 4 be among Fig. 1 C to view.
Among the figure 1; Cooling liquid inlet 2; Swivel joint 3; Trap 4; Supporting bearing base 5; Transmission main shaft 6; Inlet box 7; Damper 8; Control gear 9; Casing 10; Impeller 11; Honeycomb duct 12; Positioning shaft bearing 13; Coupling 14; Sealing 15; Reel 16; Intake grill 17; Through-flow mouthful of II 18; Cooling chamber 19; Shunting disk 20; Import 21; Outlet 22; Supporting rib 23; Rivet 24; Wheel cap mouth circle 25; Through-flow mouthful of I 26; Mechanical seal 27; Advance trap mouth 28; Cooling liquid outlet
Embodiment is with reference to Fig. 1, Fig. 2, Fig. 3 and Fig. 4, and the utility model comprises that casing 9, inlet box 6, damper 7, impeller 10 and two ends are respectively equipped with the transmission main shaft 5 of supporting bearing base 4 and positioning shaft bearing 12; Have through hole on the back side panel of said casing 9; Impeller 10 is installed on the transmission main shaft 5 through reel 15, and its main points are to state transmission main shaft 5 to be and to establish honeycomb duct 11 in the hollow-core construction, and an end of transmission main shaft 5 is provided with trap 3 and swivel joint 2; The through-flow mouthful of inlet/ outlet 20,21 that I, II 25,17 are connected that is provided with cooling chamber 18 in the said reel 15 and is provided with honeycomb duct 11; Said impeller is provided with shunting disk 19 and supporting rib 22, and said impeller is the double suction structure that two-wheel covers shared wheel disc, and wheel disc is connected by rivet or bolt with reel, and casing is provided with intake grill 16; The other end of said transmission main shaft 5 is provided with coupling 13; The supporting bearing base 4 and the positioning shaft bearing 12 at said transmission main shaft 5 two ends are provided with Sealing 14; Said intake grill 16 is asymmetry awl arcuation; Said swivel joint 2 is provided with cooling liquid inlet 1; Said trap is provided with cooling liquid outlet 28, advances trap mouth 27 and mechanical seal; Said impeller is provided with wheel cap mouth circle 24; The supporting bearing base 4 and the positioning shaft bearing 12 peripheral hardware water interlayer casings at said transmission main shaft 5 two ends; The cooling medium that feeds in the said honeycomb duct 11 can be liquid such as water, oil or saponification liquor, also can be gases such as low temperature nitrogen, air.
The assembling of each parts of the utility model, design principle and effect: transmission main shaft 5 adopts hollow structure and inside that honeycomb duct 11 is housed; Mounted impeller 10, one ends are installed coupling 13 transferring power in the middle of the main shaft 5, the other end swivel joint 2 and trap 3; The blade of impeller is centrifugal to be welded between wheel disc and the wheel cap; Simultaneously designed a shunting disk 19 again between wheel disc and the wheel cap according to the flow section method; Shunting disk is inner to be fixed with the blade neutral position, and outside and supporting rib 22 penetrates welding, and the gas that gets into impeller 10 is reasonably shunted; Reduced the interference of eddy current and laminar flow, the combination of supporting rib 22 simultaneously makes the end of enclosing cover for impeller, blade, shunting disk and reel 15 become a three-dimensional mechanism that restricts; The other end of main shaft 5 is equipped with special swivel joint; Make the cooling medium of process HIGH PRESSURE TREATMENT get into main shaft 5 inner guiding pipe 11 from cooling liquid inlet; The inflow the other end gets into reel 15 cooling back backflow cooling bearings, is back to cooling liquid container through advancing trap mouth 27 entering traps 3 at last.
Described shunting disk 19 is to calculate through accurate fluid boundary research to form; The special construction that meets flow section; Best anchor ring incision from impeller inlet; By fluid resistance the flow path design of high-effect the best be connected to blade exit always, and blade is divided into 2 rational flowing spaces.Can obtain higher pressure like this, can carry higher high-temperature gas, the Rational structure shunting disk of original creation has not only improved fan efficiency, has strengthened the impeller rigidity largely simultaneously, has strengthened the operating reliability of centrifugal blower, has improved efficient.
With reference to figure 1, Fig. 2, Fig. 3, show one here for realizing the inner colded optimum scheme of high-temperature blower impeller.This high temperature centrifugal blower fan blade wheel 10; Through linking together with rivet 23 between wheel disc and reel, reel 15 is contained in the middle of the main shaft 5 with double-deck passage, and there is honeycomb duct 11 main shaft 5 inside; Make main shaft 5 boring chambeies and honeycomb duct 11 form a good path through handling at right-hand member; The high-pressure coolant that flows into from the left end swivel joint flow to right-hand member through honeycomb duct 11, goes back to the hollow shaft 5 inner chamber annular passs of runner pipe outer wall, positioning bearing cooling back is got into the reel cooling chamber rivet 23 is cooled off; Be back to annular chamber and continue after the spring bearing cooling, after trap 3 affluxs be back in the cooling liquid container by cooling liquid outlet 28.
With reference to figure 1, Fig. 2, show the best connecting mode of rinforcement bar and reel here, rinforcement bar inserts outside, reel 15 tapped holes connection back and welds.
With reference to figure 1, Fig. 4, show the unique novel characteristics of the utility model, be shunting disk 19 of impeller design, and make up three-dimensional high slight high rigidity impeller combination with supporting rib 22.The wheel cap of impeller 10 and the blade between wheel disc; Blade can be according to use occasion Demand Design wing blade or single panel type; Because the blades height size is big, be prone to cause the gas that gets into impeller to produce eddy current and laminar flow, designed a shunting disk 19 by the fluid optimum Working; Shunting disk and blade welding are divided into two passages with blade; Supporting rib 22 and the welding of shunting disk 19 INSERTTYPEs, and reliable soldering behind the reel end that is threaded make impeller outer disc, blade, shunting disk 19, wheel cap and inner disc, reel head end, reel end, stiffening rib, separator disk, crossings on different level of the interior formation of wheel cap restrict mechanism.
With reference to figure 1, Fig. 4; Show the unique novel characteristics of the utility model; Be to have designed eccentric intake grill according to the air-flow optimal path that changes of prewhirling, air-flow is from the inlet box 6 vertical impellers that get into, and intake grill 16 direct water conservancy diversion are prewhirled; Avoid conventional intake grill elder generation symmetry to be full of the intake grill inlet end face and turned back again and get into the windage loss of impeller, improved efficient.
Another uniqueness and the novel characteristics of the utility model are to adopt two air intake dual-support structures, can improve rotation speed of fan greatly, and reasonably blower fan is prewhirled to change and made the blower fan pneumatic efficiency improve; Simultaneously, the end thrust of blower fan forced air of having cancelled each other to blower fan, the blower fan running is more steadily safer.
The utility model compared with prior art has following characteristic and advantage:
1, improves the gas flow characteristic through increasing shunting disk, increase stiffening rib simultaneously and connect with shunting disk and reel, form a crossings on different level integral body, solved problems such as bending blade and wheel cap distortion when basic with wheel cap; The structure of special hollow shaft makes in the blower fan operation process, directly reel rivet position and bearing inside is reliably cooled off; Neither influencing high-temperature gas carries; Environmental pollution can not keep impeller and bearing long-term stable operation again, has guaranteed the operational reliability of blower fan;
2, simple in structure, the convenient gas delivery that realizes big-flow high-pressure power;
3, operate steadily, efficient improves;
4, can carry high-temperature gas greater than 800 ℃;
5, really realize environmental protection and energy-efficient.
Claims (7)
1. a large-scale double suction is gone into centrifugal blower, comprises that casing, inlet box, damper, impeller and two ends are respectively equipped with the transmission main shaft of supporting bearing base and positioning shaft bearing; Have through hole on the back side panel of said casing; Impeller is installed on the transmission main shaft through reel, it is characterized in that stating transmission main shaft and is and establishes honeycomb duct in the hollow-core construction, and an end of transmission main shaft is provided with trap and swivel joint; The through-flow mouthful of inlet/outlet that I, II are connected that is provided with cooling chamber in the said reel and is provided with honeycomb duct; Said impeller is provided with shunting disk and supporting rib, and said impeller is the double suction structure that two-wheel covers shared wheel disc, and wheel disc is connected by rivet or bolt with reel, and casing is provided with intake grill; The other end of said transmission main shaft is provided with coupling.
2. large-scale double suction according to claim 1 is gone into centrifugal blower, it is characterized in that the supporting bearing base at said transmission main shaft two ends and positioning shaft bearing are provided with Sealing.
3. large-scale double suction according to claim 1 is gone into centrifugal blower, it is characterized in that said intake grill is asymmetry awl arcuation.
4. large-scale double suction according to claim 1 is gone into centrifugal blower, it is characterized in that said swivel joint is provided with cooling liquid inlet.
5. large-scale double suction according to claim 1 is gone into centrifugal blower, it is characterized in that said trap is provided with cooling liquid outlet, advances trap mouth and mechanical seal.
6. large-scale double suction according to claim 1 is gone into centrifugal blower, it is characterized in that said impeller is provided with wheel cap mouth circle.
7. large-scale double suction according to claim 1 is gone into centrifugal blower, it is characterized in that the supporting bearing base and the positioning shaft bearing peripheral hardware water interlayer casing at said transmission main shaft two ends.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011202900478U CN202157973U (en) | 2011-08-10 | 2011-08-10 | Large-size double suction centrifugal blower |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011202900478U CN202157973U (en) | 2011-08-10 | 2011-08-10 | Large-size double suction centrifugal blower |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202157973U true CN202157973U (en) | 2012-03-07 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2011202900478U Expired - Lifetime CN202157973U (en) | 2011-08-10 | 2011-08-10 | Large-size double suction centrifugal blower |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202157973U (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102588344A (en) * | 2012-03-29 | 2012-07-18 | 江苏乘帆压缩机有限公司 | High-flow high-pressure centrifugal fan |
| CN108457895A (en) * | 2018-01-09 | 2018-08-28 | 黄昌金 | A kind of axis stream opposite direction turbine |
| CN109145335A (en) * | 2017-06-28 | 2019-01-04 | 中国航发贵阳发动机设计研究所 | A method of wheel disc low cycle fatigue life is improved by pre-rotation |
| CN114934907A (en) * | 2022-04-29 | 2022-08-23 | 湖北双剑鼓风机制造有限公司 | Intelligent fan |
-
2011
- 2011-08-10 CN CN2011202900478U patent/CN202157973U/en not_active Expired - Lifetime
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102588344A (en) * | 2012-03-29 | 2012-07-18 | 江苏乘帆压缩机有限公司 | High-flow high-pressure centrifugal fan |
| CN109145335A (en) * | 2017-06-28 | 2019-01-04 | 中国航发贵阳发动机设计研究所 | A method of wheel disc low cycle fatigue life is improved by pre-rotation |
| CN108457895A (en) * | 2018-01-09 | 2018-08-28 | 黄昌金 | A kind of axis stream opposite direction turbine |
| 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 | ||
| C56 | Change in the name or address of the patentee |
Owner name: SHANDONG LINFENG TECHNOLOGY CO., LTD. Free format text: FORMER NAME: SHANDONG LINFENG BLOWER CO., LTD. |
|
| CP03 | Change of name, title or address |
Address after: 276023 East Longitudinal North Road head, Linyi Economic Development Zone, Shandong Patentee after: Shandong facing the wind Science and Technology Co., Ltd. Address before: 276023 Shandong city in Linyi Province Economic Development Zone, the first northbound East longitudinal wind blower Co Ltd in Shandong Province Patentee before: Shandong Linfeng Blower Co.,Ltd. |
|
| CX01 | Expiry of patent term | ||
| CX01 | Expiry of patent term |
Granted publication date: 20120307 |