CN204418462U - Roof ventilator - Google Patents
Roof ventilator Download PDFInfo
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- CN204418462U CN204418462U CN201520065896.1U CN201520065896U CN204418462U CN 204418462 U CN204418462 U CN 204418462U CN 201520065896 U CN201520065896 U CN 201520065896U CN 204418462 U CN204418462 U CN 204418462U
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- air duct
- blast cap
- axial flow
- flow blower
- roof
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Abstract
The utility model discloses a kind of roof ventilator, at least comprise air duct and be arranged at the roof structure for ventilating on roof, also comprise that first end is fixedly installed in described air duct, the second end along the blast cap axle axially extended to outside described air duct of described air duct, be sheathed on described blast cap axle and the blast cap being rotatably fixed on described blast cap axle and the bridgeware be arranged between described air duct and described roof structure; Match with described roof structure in one end of described bridgeware, the other end of described bridgeware matches with the bottom of described air duct; Also be provided with the axial flow blower for strengthening air quantity in described air duct, described axial flow blower is fixedly installed in described air duct by fastening devices; The axis of described axial flow blower and the axis collinear of described air duct are arranged; The first end of described blast cap axle is arranged at described axial flow blower top.The utility model has the beneficial effect that adjustable, the outer within doors cross-ventilation of air quantity in air duct is comparatively strong, ventilation rate increases.
Description
Technical field
The utility model relates to roof ventilation technical field of structures, particularly relates to a kind of roof ventilator.
Background technology
Roof no-power air blower is installed in warehouse, courtyard, livestock culture, greenhouse or mine passage usually, especially ridge both sides, industrial occupancy top are arranged on, and utilize Indoor Thermal air-flow to rise, the natural principle that cold air declines, the power produced by air flowing makes the air inside and outside room form convection current, thus reaches the object of exhaust ventilation.But this ventilating structure poor reliability, air quantity is large by the impact of indoor and outdoor surroundings, and strong cross-ventilated occasion of cannot satisfying the demand.
In addition, in order to strengthen ventilation effect, usually at present increase air force by mechanical ventilation, and then the volatilization accelerating hot gas is with the object of satisfied ventilation cooling.Although this blower fan reliability is strong, the impact by indoor and outdoor surroundings is little, and energy consumption is high, and noise is large.Therefore, those skilled in the art need the roof ventilator that adjustable, the outer within doors cross-ventilation of a kind of air quantity of research is comparatively strong, can meet different needs badly.
Utility model content
Because the above-mentioned defect of prior art, the air quantity that the utility model proposes in a kind of air duct can carry out regulating as required, cross-ventilation outer is within doors compared with the roof ventilator strong, noise is little, energy consumption is low
For achieving the above object, the utility model provides a kind of roof ventilator, at least comprise air duct and be arranged at the roof structure for ventilating on roof, also comprise that first end is fixedly installed in described air duct, the second end along the blast cap axle axially extended to outside described air duct of described air duct, to be sheathed on the blast cap axle outside described air duct and the blast cap being rotatably fixed on described blast cap axle and the bridgeware be arranged between described air duct and described roof structure; Match with described roof structure in one end of described bridgeware, the other end of described bridgeware matches with the bottom of described air duct; Also be provided with the axial flow blower for strengthening wind speed in described air duct, described axial flow blower is fixedly installed in described air duct by fastening devices; The axis of described axial flow blower and the axis collinear of described air duct are arranged; The first end of described blast cap axle is arranged at described axial flow blower top.
Preferably, described fastening devices is be fixedly installed on the tripod structure in described air duct; Described axial flow blower is fixedly installed on described tripod structure.
Preferably, the second end of described blast cap axle and described blast cap contact position are provided with draft reduction material.
Preferably, described draft reduction material is polytetrafluoroethylene (PTFE).
The beneficial effects of the utility model:
Roof ventilator of the present utility model, owing to being provided with axial flow blower at air duct internal fixtion, when the wheel rotation of axial flow blower, enters impeller from roof structure effluent air from axial flow blower import department.When gas enters impeller, utilize the airfoil fan on impeller to increase the energy of gas at the lift that gas rotating produces, when making gas discharge impeller, move forward to the one end away from roof structure in air duct twist vertically.Along with the continuous rotation of the impeller of axial flow blower, from roof structure effluent air by the one end be constantly expelled to away from roof structure in air duct, thus increase the air quantity that gas within doors flows to air duct, accelerate the convection velocity of outer air within doors, improve air quality within doors.
The top of air duct is provided with blast cap, in the pressure reduction formed due to the atmospheric density difference inside and outside air duct and air duct, axial flow blower goes out the aerodynamic energy of interruption-forming, blast cap rotates under the effect of high-density pressure, accelerate the convection velocity of blast cap ambient air, increase the flow of air in air duct further, improve the convection velocity of outer air within doors.
In addition, due to the setting of the rotatable blast cap in air duct top, rotate under the pull out force effect that the natural wind density contrast of blast cap in air duct is formed, to be conducive to being increased under natural ventilation condition the air quantity that gas within doors flows to air duct, to accelerate the convection velocity of outer air within doors.
Axial flow blower and blast cap combine setting, achieve the conversion between mechanical exhaust and natural exhaust.During use, the combination of natural ventilation or natural ventilation and mechanical ventilation can be selected according to concrete instructions for use, be conducive to reducing energy consumption, saved resource.
Be arranged at the draft reduction material between blast cap axle the second end and blast cap, reduce the resistance between blast cap axle and blast cap, reduce the loss of kinetic energy when rotating, improve the rotary speed of blast cap, extend the application life of blast cap axle, reduce the use cost of blast cap axle.
Be arranged at the bridgeware between air duct and roof structure, reduce the difficulty of processing of air duct when air duct is directly connected with roof structure, expand the scope of application of product, improve economic benefit.
Be described further below with reference to the technique effect of accompanying drawing to design of the present utility model, concrete structure and generation, to understand the purpose of this utility model, characteristic sum effect fully.
Accompanying drawing explanation
Fig. 1 is the broken section structural representation of an embodiment of the present utility model.
Detailed description of the invention
As shown in Figure 1, present embodiments provide a kind of roof ventilator, the roof structure 4 comprising air duct 1 and be arranged at for ventilating on roof.Also comprise that first end 31 is fixedly installed in air duct 1, the second end 32 is along the blast cap axle 3 axially extended to outside air duct 1 of air duct 1.Be set on the blast cap axle 3 that is positioned at outside air duct, and the blast cap 2 that can rotate relative to blast cap axle, blast cap 2 is rotatably fixedly installed on blast cap axle 3 by A-frame 12 and bearing.
Owing to being provided with axial flow blower at air duct internal fixtion, when the wheel rotation of axial flow blower, enter impeller from roof structure effluent air from axial flow blower import department.When gas enters impeller, utilize the airfoil fan on impeller to increase the energy of gas at the lift that gas rotating produces, when making gas discharge impeller, move forward to the one end away from roof structure in air duct twist vertically.Along with the continuous rotation of the impeller of axial flow blower, from roof structure effluent air by the one end be constantly expelled to away from roof structure in air duct, thus accelerate the air quantity that gas within doors flows to air duct, accelerate the convection velocity of outer air within doors, improve air quality within doors.
Owing to being provided with rotatable blast cap at the top of blast cap axle, under natural ventilation condition, the rotation of blast cap can increase the kinetic energy to gas in air duct, adds the air quantity that gas within doors flows to air duct, accelerates the convection velocity of outer air within doors.
In order to leave enough spaces to the axial flow blower be arranged in air duct, the height of air duct must increase, due to the increase of air duct height, in air duct, pull out force suffered by gas increases, to be conducive to being increased under natural ventilation condition the air quantity that gas within doors flows to air duct, to accelerate the convection velocity of outer air within doors.
Axial flow blower and blast cap combine setting, achieve the combination between mechanical exhaust and natural exhaust and conversion.During use, the combination of natural ventilation or natural ventilation and mechanical ventilation can be selected according to concrete instructions for use, be conducive to reducing energy consumption, saved resource.Wherein, the first end 31 of blast cap axle 3 is fixedly arranged in air duct 1 by tripod 11, and is positioned at the top of axial flow blower 6.The second end 32 and the contact position of blast cap 2 of blast cap axle 3 are provided with the polytetrafluoroethylene (PTFE) for drag reduction.The setting of this draft reduction material, reduces the resistance between blast cap axle and blast cap, improves the rotary speed of blast cap, extends the application life of blast cap axle, reduces the use cost of blast cap axle.
In the present embodiment, in order to improve the stability of blast cap axle 3, the axle portion of blast cap axle 3 is also fixedly connected on inside air duct by fastening devices 13.
Bridgeware 5 is provided with between air duct 1 and roof structure 4.Match with roof structure 4 in one end of bridgeware 5, the other end of bridgeware 5 matches with the bottom of air duct 1.This bridgeware is circle side's part, namely the one end coordinated with air duct 1 is circular configuration, the one end coordinated with roof structure 4 is rectangular configuration, this structure meets the general processing mode of air duct 1 and roof structure 4 simultaneously, reduce the difficulty of processing of air duct when air duct is directly connected with roof structure, expand the scope of application of product, improve economic benefit.
Also be provided with the axial flow blower 6 for adding Wind Volume in air duct 1, axial flow blower 6 is fixedly installed in air duct 1 by the tripod structure 7 for fastening devices.The axis of axial flow blower 6 and the axis collinear of air duct 1 are arranged, and namely the axis of the axis of axial flow blower 6 and air duct 1 on the same line, thus just can be met the installation requirement of axial flow blower by less air duct diameter.
In the present embodiment, in axial flow blower impeller rotation or stop to be realized by additional gauge tap.Such as, when gas concentration within doors or temperature higher, when needing to accelerate cross-ventilation outer within doors by strong convection, axial flow blower is opened, blast cap rotates, the air quantity that gas flows to air duct within doors increases, thus adopts the combination of natural ventilation and mechanical ventilation to improve the air quantity of gas flow air duct within doors, improves air quality within doors; When gas concentration within doors or temperature lower, when the pull out force produced by the rotation of the unpowered blast cap on roof can be met the demands, closing axle flow fan, axial flow blower stops operating, and is realized the convection current of taking offence of indoor and outdoor by natural ventilation.
In other embodiments, different gears can be set to for the switch controlling axial flow blower, and then require according to the difference of air quantity the rotating speed controlling axial flow blower, thus while meeting exhaust ventilation requirement, reduce energy consumption, save cost.
In other embodiments, the draft reduction material being arranged at the second end of blast cap axle and the contact position of blast cap also can select other material, as polythene material, polyurethane material etc.
Roof ventilator of the present utility model, owing to being provided with axial flow blower at air duct internal fixtion, when the wheel rotation of axial flow blower, enters impeller from roof structure effluent air from axial flow blower import department.When gas enters impeller, utilize the airfoil fan on impeller to increase the energy of gas at the lift that gas rotating produces, when making gas discharge impeller, move forward to the one end away from roof structure in air duct twist vertically.Along with the continuous rotation of the impeller of axial flow blower, from roof structure effluent air by the one end be constantly expelled to away from roof structure in air duct, thus accelerate the air quantity that gas within doors flows to air duct, accelerate the convection velocity of outer air within doors, improve air quality within doors.
The top of air duct is provided with blast cap, the aerodynamic energy of interruption-forming is gone out because the atmospheric density difference inside and outside air duct forms axial flow blower in different pressure reduction and air duct, blast cap rotates under the effect of pressure reduction, accelerate the convection velocity of blast cap ambient air, increase the flow of air in air duct further, improve the convection velocity of outer air within doors.
In addition, due to the setting of the rotatable blast cap in air duct top, to be conducive to being increased under natural ventilation condition the air quantity that gas within doors flows to air duct, to accelerate the convection velocity of outer air within doors.
Axial flow blower and blast cap combine setting, achieve the conversion between mechanical exhaust and natural exhaust.During use, the combination of natural ventilation or natural ventilation and mechanical ventilation can be selected according to concrete instructions for use, be conducive to reducing energy consumption, saved resource.
Be arranged at the draft reduction material between blast cap axle the second end and blast cap, reduce the resistance between blast cap axle and blast cap, improve the rotary speed of blast cap, extend the application life of blast cap axle, reduce the use cost of blast cap axle.
Be arranged at the bridgeware between air duct and roof structure, reduce the difficulty of processing of air duct when air duct is directly connected with roof structure, expand the scope of application of product, improve economic benefit.
More than describe preferred embodiment of the present utility model in detail.Should be appreciated that those of ordinary skill in the art just can make many modifications and variations according to design of the present utility model without the need to creative work.Therefore, all technician in the art according to design of the present utility model on the basis of existing technology by the available technical scheme of logical analysis, reasoning, or a limited experiment, all should by the determined protection domain of claims.
Claims (4)
1. a roof ventilator, at least comprise air duct and be arranged at the roof structure for ventilating on roof, it is characterized in that, also comprise that first end is fixedly installed in described air duct, the second end along the blast cap axle axially extended to outside described air duct of described air duct, to be sheathed on the described blast cap axle outside described air duct and the blast cap being rotatably fixed on described blast cap axle and the bridgeware be arranged between described air duct and described roof structure; Match with described roof structure in one end of described bridgeware, the other end of described bridgeware matches with the bottom of described air duct; Also be provided with the axial flow blower for strengthening air quantity in described air duct, described axial flow blower is fixedly installed in described air duct by fastening devices; The axis of described axial flow blower and the axis collinear of described air duct are arranged; The first end of described blast cap axle is arranged at described axial flow blower top.
2. roof ventilator as claimed in claim 1, it is characterized in that, described fastening devices is be fixedly installed on the tripod structure in described air duct; Described axial flow blower is fixedly installed on described tripod structure.
3. roof ventilator as claimed in claim 1 or 2, it is characterized in that, the second end and the described blast cap contact position of described blast cap axle are provided with draft reduction material.
4. roof ventilator as claimed in claim 3, it is characterized in that, described draft reduction material is polytetrafluoroethylene (PTFE).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520065896.1U CN204418462U (en) | 2015-01-30 | 2015-01-30 | Roof ventilator |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520065896.1U CN204418462U (en) | 2015-01-30 | 2015-01-30 | Roof ventilator |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204418462U true CN204418462U (en) | 2015-06-24 |
Family
ID=53468846
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201520065896.1U Active CN204418462U (en) | 2015-01-30 | 2015-01-30 | Roof ventilator |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN204418462U (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105298529A (en) * | 2015-09-09 | 2016-02-03 | 中邮建技术有限公司 | Portable power-free communication manhole efficient ventilation method |
| CN108010665A (en) * | 2017-12-29 | 2018-05-08 | 国网山东省电力公司嘉祥县供电公司 | A kind of power transformer with wind-force pumping heat dissipation channel |
| CN112833491A (en) * | 2021-01-11 | 2021-05-25 | 魏秀芹 | Building energy-saving roof ventilation device |
| CN113513801A (en) * | 2021-04-20 | 2021-10-19 | 深圳博强建设开发有限公司 | New energy-saving building with air conditioning function |
-
2015
- 2015-01-30 CN CN201520065896.1U patent/CN204418462U/en active Active
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105298529A (en) * | 2015-09-09 | 2016-02-03 | 中邮建技术有限公司 | Portable power-free communication manhole efficient ventilation method |
| CN108010665A (en) * | 2017-12-29 | 2018-05-08 | 国网山东省电力公司嘉祥县供电公司 | A kind of power transformer with wind-force pumping heat dissipation channel |
| CN112833491A (en) * | 2021-01-11 | 2021-05-25 | 魏秀芹 | Building energy-saving roof ventilation device |
| CN113513801A (en) * | 2021-04-20 | 2021-10-19 | 深圳博强建设开发有限公司 | New energy-saving building with air conditioning function |
| CN113513801B (en) * | 2021-04-20 | 2022-09-27 | 深圳博强建设开发有限公司 | New energy-saving building with air conditioning function |
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