CN102900685A - Blast protection mixed flow blower for ship - Google Patents
Blast protection mixed flow blower for ship Download PDFInfo
- Publication number
- CN102900685A CN102900685A CN2012104079136A CN201210407913A CN102900685A CN 102900685 A CN102900685 A CN 102900685A CN 2012104079136 A CN2012104079136 A CN 2012104079136A CN 201210407913 A CN201210407913 A CN 201210407913A CN 102900685 A CN102900685 A CN 102900685A
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- centrifugal impeller
- blower
- blower fan
- axial flow
- inner barrel
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Abstract
The invention relates to a blast protection mixed flow blower for a ship. The blower comprises an air inlet, an axial flow motor, a centrifugal impeller, an inner barrel, an outer barrel, a back-positioned guide vane and an air outlet, wherein the centrifugal impeller is mounted to a motor shaft of the axial flow motor; the axial flow motor is mounted into the inner barrel; the inner barrel and the outer barrel are coupled via the back-positioned guide vane; the air inlet and the centrifugal impeller are cooperatively mounted to one end of the outer barrel; and the air outlet is mounted to the other end of the outer barrel. Through combining the air supply structures of traditional axial flow blower and centrifugal blower, the blast protection mixed flow blower for the ship meets the air quantity and air pressure requirements of the centrifugal blower, and possesses the advantage of installation flexibility of the axial flow blower, and is suitable to be used in ship equipment with high requirement.
Description
Technical field
The present invention relates to a kind of blower fan, is a kind of marine explosion-proof flow-mixing blower fan specifically.
Background technique
Marine type fan generally is divided into centrifugal blower and axial-flow blower two classes, and the characteristics of centrifugal blower are that air quantity is little, and pressure is high; The characteristics of axial-flow blower are that air quantity is high, and pressure is little; But along with developing rapidly of ship industry, shipborne equipment is more and more advanced, and the performance of blower fan is had higher requirement.
Centrifugal blower needs larger space and special pipeline to arrange usually, because the restriction in environment peculiar to vessel and place does not generally have enough spaces to arrange; Axial-flow blower can utilize on the ship ventilator pipe to arrange, but its pressure is not high, in general, the static pressure of axial-flow blower is not super 600Pa generally, when system needs higher static pressure, only achieve the goal by series connection blower fan or reduction user demand, this two schemes one is to increase operating cost, the secondth, the reduction demand must increase the operation difficulty to other side.
Summary of the invention
Can't satisfy the deficiency of shipborne equipment high performance requirements in order to solve centrifugal blower in the prior art or axial-flow blower, the invention provides a kind of compact structure, easy for installation, ventilation is large, blast is high, and drafting efficiency is high, the marine explosion-proof flow-mixing blower fan that noise is low.
During the technical solution used in the present invention: a kind of marine explosion-proof flow-mixing blower fan, it is characterized in that comprising intake grill, axial flow motor, centrifugal impeller, inner barrel, outer cylinder body, exit guide vane and exhaust outlet, centrifugal impeller is installed on the motor shaft of axial flow motor, the axial flow motor is installed in the inner barrel, connect through exit guide vane between inner barrel and outer cylinder body, intake grill cooperates with centrifugal impeller and is installed on outer cylinder body one end, the outer cylinder body the other end is installed exhaust outlet, described intake grill is the arc tubular, and described centrifugal impeller outlet port outer cylinder body is the taper of outside convergence.
Further, described centrifugal impeller is cast aluminium alloy casting machine aerofoil profile; Described exit guide vane is the twisted blade formula.
Again further, described intake grill is that the both ends open diameter is all greater than the arc tubular of intermediate portion diameter; Described exhaust outlet is the outside convergence cylinder that shrinks of interior diameter with the noise reduction layer.
Adopt above technological scheme, the invention has the beneficial effects as follows: intake grill adopts the arc tubular, is conducive to improve the whole air intake efficiency of blower fan; Centrifugal impeller outlet port outer cylinder body is the taper of outside convergence, and tapering is according to the decision of blower fan size, and rearward stator is mobile to force the air-flow of being sent by centrifugal impeller, reduces windage loss, improves fan performance; Impeller adopts cast aluminium alloy casting machine aerofoil profile, has good air dynamic behaviour, and its weight is low, intensity good, rigidity is large, and flow coefficient is large, and drafting efficiency improves 5%-10%, and noise hangs down the 3-5 decibel; The axial flow motor is installed in the inner barrel, and inner barrel is in exit guide vane is connected in outer cylinder body, and connecting relation is stable between each parts, reduces device assembles weight, reduces manufacture cost, improves Whole Equipment intensity; Exit guide vane is the twisted blade formula, and the efficient district of stator and stable operation range are wide, and off design performance is good, is conducive to improve working life; Exhaust outlet is the convergence cylinder with the noise reduction layer, can change the sectional area of traffic channel, strengthens the outlet velocity of blower fan, makes blower fan produce larger pressure, and after the exhaust outlet of blower fan added the noise reduction layer, fan noise can reduce by 5 ~ 8dB.
The present invention had both reached centrifugal blower air quantity, blast requirement in conjunction with the air-supply structure of traditional axial-flow blower and centrifugal blower, had again axial-flow blower advantage flexible for installation, and the ship equipment that is fit to high request uses.
Description of drawings
Fig. 1 is structural representation of the present invention.
Among the figure: outer cylinder body 1, inner barrel 2, axial flow motor 3, motor shaft 4, centrifugal impeller 5, intake grill 6, exit guide vane 7, exhaust outlet 8, noise reduction layer 9.
Embodiment
The invention will be further described below in conjunction with drawings and Examples.
Shown in Figure 1, a kind of marine explosion-proof flow-mixing blower fan comprises outer cylinder body 1, inner barrel 2, axial flow motor 3, centrifugal impeller 5, intake grill 6, exit guide vane 7 and exhaust outlet 8.Centrifugal impeller 5 is installed on the motor shaft 4 of axial flow motor 3, axial flow motor 3 is installed in the inner barrel 2, inner barrel 2 places in the outer cylinder body 1 through exit guide vane 7 connections, exit guide vane 7 is the twisted blade formula, intake grill 6 cooperates with centrifugal impeller 5 and is installed on outer cylinder body 1 one ends, intake grill 6 is that the both ends open diameter is all greater than the arc tubular of intermediate portion diameter, the outer cylinder body in centrifugal impeller 5 outlet ports is outside opening shape, centrifugal impeller 5 is cast aluminium alloy casting machine aerofoil profile, outer cylinder body 1 the other end is installed exhaust outlet 8, exhaust outlet 8 is the outside convergence cylinder that shrinks of interior diameter with the noise reduction layer, and exhaust outlet 8 is interior convergence cylinder with noise reduction layer 9.
Claims (5)
1. marine explosion-proof flow-mixing blower fan, it is characterized in that: comprise intake grill, axial flow motor, centrifugal impeller, inner barrel, outer cylinder body, exit guide vane and exhaust outlet, centrifugal impeller is installed on the motor shaft of axial flow motor, the axial flow motor is installed in the inner barrel, connect through exit guide vane between inner barrel and outer cylinder body, intake grill cooperates with centrifugal impeller and is installed on outer cylinder body one end, and the outer cylinder body the other end is installed exhaust outlet.
2. marine explosion-proof flow-mixing blower fan according to claim 1, it is characterized in that: described centrifugal impeller is cast aluminium alloy casting machine aerofoil profile.
3. marine explosion-proof flow-mixing blower fan according to claim 1, it is characterized in that: described exit guide vane is the twisted blade formula.
4. marine explosion-proof flow-mixing blower fan according to claim 1 is characterized in that: described intake grill is that the both ends open diameter is all greater than the arc tubular of intermediate portion diameter.
5. marine explosion-proof flow-mixing blower fan according to claim 1 is characterized in that: described exhaust outlet is the interior convergence cylinder that outwards shrinks with the diameter of noise reduction layer.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012104079136A CN102900685A (en) | 2012-10-24 | 2012-10-24 | Blast protection mixed flow blower for ship |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012104079136A CN102900685A (en) | 2012-10-24 | 2012-10-24 | Blast protection mixed flow blower for ship |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN102900685A true CN102900685A (en) | 2013-01-30 |
Family
ID=47573104
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2012104079136A Pending CN102900685A (en) | 2012-10-24 | 2012-10-24 | Blast protection mixed flow blower for ship |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN102900685A (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103629128A (en) * | 2013-11-14 | 2014-03-12 | 梁国巨 | Silent fan |
| CN103696986A (en) * | 2014-01-06 | 2014-04-02 | 常立新 | Sleeve type centrifugal dehumidifying and purifying ventilator |
| CN105756976A (en) * | 2016-04-29 | 2016-07-13 | 上海诺地乐通用设备制造有限公司 | Direct connection mixed flow fan |
| CN111894872A (en) * | 2020-07-10 | 2020-11-06 | 绍兴智新机电科技有限公司 | Two-stage booster-type low noise fan |
| CN113074141A (en) * | 2020-01-06 | 2021-07-06 | 广东威灵电机制造有限公司 | Diffuser, air supply device and dust collector |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4692091A (en) * | 1985-09-23 | 1987-09-08 | Ritenour Paul E | Low noise fan |
| CN201786695U (en) * | 2010-07-05 | 2011-04-06 | 浙江志江风机有限公司 | Centrifugal axial-flow fan |
| CN202149084U (en) * | 2011-07-22 | 2012-02-22 | 浙江特风风机有限公司 | Mixed flow type fan |
| CN202900706U (en) * | 2012-10-24 | 2013-04-24 | 江苏兆胜空调有限公司 | Marine anti-explosion mixed flow fan |
-
2012
- 2012-10-24 CN CN2012104079136A patent/CN102900685A/en active Pending
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4692091A (en) * | 1985-09-23 | 1987-09-08 | Ritenour Paul E | Low noise fan |
| CN201786695U (en) * | 2010-07-05 | 2011-04-06 | 浙江志江风机有限公司 | Centrifugal axial-flow fan |
| CN202149084U (en) * | 2011-07-22 | 2012-02-22 | 浙江特风风机有限公司 | Mixed flow type fan |
| CN202900706U (en) * | 2012-10-24 | 2013-04-24 | 江苏兆胜空调有限公司 | Marine anti-explosion mixed flow fan |
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103629128A (en) * | 2013-11-14 | 2014-03-12 | 梁国巨 | Silent fan |
| CN103629128B (en) * | 2013-11-14 | 2015-10-07 | 梁国巨 | A kind of Silent fan |
| CN103696986A (en) * | 2014-01-06 | 2014-04-02 | 常立新 | Sleeve type centrifugal dehumidifying and purifying ventilator |
| CN105756976A (en) * | 2016-04-29 | 2016-07-13 | 上海诺地乐通用设备制造有限公司 | Direct connection mixed flow fan |
| CN105756976B (en) * | 2016-04-29 | 2019-01-22 | 上海诺地乐通用设备制造有限公司 | A kind of direct connection flow-mixing blower fan |
| CN113074141A (en) * | 2020-01-06 | 2021-07-06 | 广东威灵电机制造有限公司 | Diffuser, air supply device and dust collector |
| CN111894872A (en) * | 2020-07-10 | 2020-11-06 | 绍兴智新机电科技有限公司 | Two-stage booster-type low noise fan |
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| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C02 | Deemed withdrawal of patent application after publication (patent law 2001) | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20130130 |