CN209539615U - A kind of Unpowered ventilation device test measurement platform - Google Patents
A kind of Unpowered ventilation device test measurement platform Download PDFInfo
- Publication number
- CN209539615U CN209539615U CN201920262780.5U CN201920262780U CN209539615U CN 209539615 U CN209539615 U CN 209539615U CN 201920262780 U CN201920262780 U CN 201920262780U CN 209539615 U CN209539615 U CN 209539615U
- Authority
- CN
- China
- Prior art keywords
- ventilation device
- connecting rod
- unpowered
- central axis
- shaft
- 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.)
- Active
Links
Landscapes
- Ventilation (AREA)
Abstract
The utility model discloses a kind of Unpowered ventilation device test measurement platforms, including rack, driving motor, Unpowered ventilation device and ventilation shaft, the ventilation shaft, Unpowered ventilation device and driving motor are sequentially arranged at from top to bottom in the rack, the top of the ventilation shaft is docked and connected with the Unpowered ventilation device bottom inflow end, middle part is equipped with anemobiagraph, the Unpowered ventilation device has a central axis, one end of the central axis is fixedly connected with the drive shaft of the motor, and the other end is connect with the flabellum being set in the ventilation shaft top.Test measurement platform provided by the utility model can accurately measure Unpowered ventilation device performance of ventilating, and then can study influence of the ventilator impeller configuration to Unpowered ventilation device air quantity.
Description
Technical field
The utility model belongs to ventilator performance the field of test technology more particularly to a kind of Unpowered ventilation device test measurement
Platform.
Background technique
Unpowered ventilation device is also known as natural ventilator, is to push the turbine of blower to rotate using the natural custom of nature,
And the principle using indoor and outdoor air convection current, the air of any parallel direction is flowed, accelerates and be changed into from bottom to top to hang down
Straight air flowing, to be excluded room air using centrifugal force and underbalance effect.Natural ventilator is cheap, installation is simple
Just, construction maintenance cost is low, work is convenient does not consume resource.In west, American-European countries is all the fashion already, has decades
History.
At home, with a large amount of appearances of steel building, Unpowered ventilation device is installed and used, also increasing day by day, it is not
Electricity consumption, it is noiseless, it can operate for a long time, exclude indoor hot gas, moisture and peculiar smell.General Unpowered ventilation device uses arc fan blade
Spherical impeller is formed, authority's research due to the U.S. in the field, such as 32 blades of optimum air dynamics Design etc.
Conclusion makes the spherical designs at the standardization of default, and later research and variation are at most also by two tie points above and below blade
Not in same vertical line, formation is wavy, and impeller is enable to rotate under lower wind-force.
But to still have running efficiency not high for natural ventilator used at present, is largely served only for middle-size and small-size ventilation
Place occurs to be unable to reach quick smoke evacuation since exhaust smoke level is too small when fire, the smoke evacuation that can not be suitable under fire conditions and big
The ventilation in type place.However the ventilation quantity and drafting efficiency of current Unpowered ventilation device are all unable to satisfy building demand ventilation need
It asks, it is therefore desirable to Unpowered ventilation device be optimized, patent 2016214138651 discloses one kind by ventilator air inlet
End installs the modified Unpowered ventilation device of flabellum additional.But in the prior art really without being used to study flabellum configuration to nothing after improvement
The professional device that power ventilation performance influences.In addition, being easy when being measured to Unpowered ventilation device parameter by outer
The interference of boundary's environment.When as big such as external wind, revolving speed is fast, and flow also increases, if directly measuring motorless flow velocity, it is found that its
Flow field very disorder causes measurement data inaccurate.
Utility model content
The application aims to solve at least one of the technical problems existing in the prior art.For this purpose, the purpose of this utility model
One of be to provide a kind of Unpowered ventilation device test measurement platform that can measure Unpowered ventilation device performance of ventilating, and then can be with
Study influence of the flabellum configuration (including factors such as quantity, shape, inclination angles) to Unpowered ventilation device wind speed and air quantity.
In order to solve the above technical problems, the utility model adopts the following technical solution:
A kind of Unpowered ventilation device test measurement platform, including rack, driving motor, Unpowered ventilation device and ventilation shaft,
The ventilation shaft, Unpowered ventilation device and driving motor are sequentially arranged at from top to bottom in the rack, the ventilation shaft
Top be docked and connected with the Unpowered ventilation device pedestal inlet end, middle part be equipped with anemobiagraph, the Unpowered ventilation utensil
There is a central axis, one end of the central axis is fixedly connected with the drive shaft of the motor, the other end and is set to the ventilation
Flabellum connection in pipeline.
Further, the middle part of the rack has level table, and the Unpowered ventilation device is dismountable by bolt
It is mounted on the level table, the bottom of the rack is equipped with lifting platform, and the ventilation shaft is vertically arranged at the lifting
On platform and top is abutted with the level table, and the level table, which is equipped with, is connected to the communication conduits and Unpowered ventilation device
Through-hole.
Further, for the drive shaft by first connecting rod and the center axis connection, one end of the first connecting rod is same
Axis is socketed in the drive shaft and the first bolt by being laterally interspersed on the first connecting rod and drive shaft realizes torsion
Transmitting, the other end of the first connecting rod be coaxially socketed on the central axis and by laterally be interspersed in the first connecting rod and
The second bolt on central axis realizes torsion transmitting.
Further, the central axis is connect by second connecting rod with the flabellum, and one end of the second connecting rod is fixed
It is mounted in the axle center axis hole of the flabellum, the other end is coaxially socketed on the central axis and by being laterally interspersed in described the
Third bolt on two connecting rods and central axis realizes torsion transmitting.
Further, the tube wall of the ventilation shaft is equipped with the hole interted for hand-held anemobiagraph.
Further, described hole is axially arranged in rows along communication conduits.
Compared with prior art, the utility model has the beneficial effects that:
(1) motive force that natural wind generates Unpowered ventilation device is substituted using the axle power of motor, guarantees to survey every time
When amount, axle power is identical under corresponding revolving speed, to facilitate the measurement of data.
(2) Unpowered ventilation device bottom is connected with ventilation shaft, according to fluid mechanics principle it is found that wind passes through ventilation shaft
It afterwards, is in the middle in Laminar Flow, to realize the measurement of wind speed, the parameter measured by the anemobiagraph in the middle part of ventilation shaft
With stronger convincingness, to provide support to optimization Unpowered ventilation device.
Detailed description of the invention
Fig. 1 is the axonometric drawing of the utility model；
Fig. 2 is the main sectional view of the utility model；
Fig. 3 is partial sectional view at A in Fig. 2；
Fig. 4 is fitting experimental data schematic diagram in embodiment.
Specific embodiment
The following will be combined with the drawings in the embodiments of the present invention, carries out the technical scheme in the embodiment of the utility model
Clearly and completely describe, it is clear that the described embodiments are only a part of the embodiments of the utility model, rather than whole
Embodiment.Based on the embodiments of the present invention, those of ordinary skill in the art are without creative efforts
Every other embodiment obtained, fall within the protection scope of the utility model.
Referring to Fig. 1 and Fig. 2, a kind of Unpowered ventilation device test measurement platform, including it is rack 1, driving motor 2, unpowered logical
Wind device 3 and ventilation shaft 4, ventilation shaft 4, Unpowered ventilation device 3 and driving motor 2 are sequentially arranged at from top to bottom in rack 1,
The top of ventilation shaft 4 and the 5 bottom inflow end of pedestal of Unpowered ventilation device 3 are docked and connected, and middle part is equipped with anemobiagraph 6, without dynamic
Power ventilator 3 has a central axis 7, and one end of central axis 7 is fixedly connected with the drive shaft 8 of motor 2, the other end be set to it is logical
Flabellum 9 in air piping 4 connects.
When test, driving motor 2 drives the snail fan of Unpowered ventilation device 3 and flabellum 9 to rotate, thus in ventilation shaft 4
Air-flow negative-pressure adsorption power is provided, air-flow is under the action of negative-pressure adsorption power, through ventilation shaft 4 from the top of Unpowered ventilation device 3
Discharge realizes the measurement of wind speed by anemobiagraph 6 because air-flow is in Laminar Flow in the middle part of ventilation shaft 4, the parameter tool measured
There is stronger convincingness, to provide support to optimization Unpowered ventilation device.Natural wind is replaced with driving motor 2 to simulate certainly
Right wind effect, and measured under environment indoors, come when guaranteeing to measure every time, the external force that Unpowered ventilation device 3 is subject to is consistent.
Specifically, driving motor 2 can use YVF-6314 variable ratio frequency changer motor, the length of ventilation shaft 4 is more than or equal to
2000cm, anemobiagraph 6 can use AR866 hand-held anemobiagraph, corresponding to need to be equipped with confession on the tube wall in ventilation shaft 4
The interspersed hole 10 of hand-held anemobiagraph, these holes 10 are axially arranged in rows along communication conduits.
Referring to Fig. 1 and Fig. 2, the middle part of rack 1 has level table 11, and Unpowered ventilation device 3 is dismountable by bolt
It is mounted on level table 11, the bottom of rack 1 is equipped with lifting platform 12, and ventilation shaft 4 is vertically arranged on lifting platform 12 and pushes up
End is abutted with level table 11, and level table 11 is equipped with the through-hole of connection ventilation shaft 4 and Unpowered ventilation device 3.Lifting platform
12 lifting platforms that can be driven with existing such as cylinder in the prior art or hydraulic cylinder, specific structure be the prior art herein
It repeats no more.In the present embodiment, ventilation shaft 4 is placed on vertically on lifting platform 12, by the promotion of lifting platform 12 by ventilation duct
The top in road 4 is connected to the bottom of level table 11, correspondingly, flabellum 9 is inserted into communication conduits 4, therefore can be convenient test
The replacement of flabellum 9 in the process.To prevent windage loss, sealing ring can also be set between ventilation shaft 4 and level table 11
(not shown).For convenience of entering in ventilation shaft 4 for gas, air inlet or air inlet duct can be set on lifting platform 12.
Referring to figs. 2 and 3, the drive shaft 8 of motor passes through first connecting rod 13 and center axis connection, one end of first connecting rod 13
It is coaxially socketed in drive shaft 8 and the first bolt 14 by being laterally interspersed on first connecting rod 13 and drive shaft 8 realizes torsion
Transmitting, the other end of first connecting rod 13 are coaxially socketed on central axis 7 and by being laterally interspersed in first connecting rod 13 and central axis 7
On the second bolt 15 realize torsion transmitting.Central axis 7 is connect by second connecting rod 16 with flabellum 9, one end of second connecting rod 16
It is fixedly mounted in the axle center axis hole of flabellum, the other end is coaxially socketed on central axis 7 and by being laterally interspersed in second connecting rod
16 and central axis 7 on third bolt (not shown) realize torsion transmitting.In the present embodiment, drive shaft 8,7 and of central axis
Flabellum 9 carries out power transmitting by connecting rod, is connected between connecting rod and each component by bolt, in the reliability for guaranteeing power transmitting
While, it dismounts also very convenient.
The assembling process of this experimental testing station is as follows:
1) rack is fixed together by several angle steel and rectangular steel pipe in the form welded, and guarantees its firm stable, thus
Play the role of fixed and protect, level table, bottom mounting lifting platform are installed in the middle part of rack.
2) driving motor is mounted on frame top using vertical mode, by the driving of first connecting rod insertion driving motor
Inside the cylinder circle of axis, and guarantee that the diameter of first connecting rod is consistent with cylinder loop diameter, it is ensured that can smoothly transmit power；
3) pedestal of Unpowered ventilation device is mounted on the level table of rack by bolt, the other end of first connecting rod
It is inserted on the central axis of Unpowered ventilation device and is connected by bolt.
4) second connecting rod is loaded in the other end of central axis, the through-hole that second connecting rod passes through on level table extends to table top
Lower section about 15cm is simultaneously connect with flabellum；
5) ventilation shaft being placed on vertically on lifting platform and opening lifting platform drives ventilation shaft to rise vertically until and water
Until flat surface bottom abuts against sealing.
Case study on implementation
Design one group of comparative test, influence of the quantity of research addition flabellum to Unpowered ventilation device air quantity.Including
Four groups of experiments, one group is not add flabellum, and one group is addition three pieces flabellum, and one group is five flabellums of addition, last organizes to add
Add six flabellums.Specific test process is as follows:
1) record experiment date, the relevant environmental parameters such as temperature and humidity.
2) hand-held anemobiagraph is opened, tester is adjusted to test mode.
3) variable ratio frequency changer driving motor is powered on, revolving speed, adjustable range 0- is adjusted by drive motor controller
90r/min。
4) by hand-held anemobiagraph be inserted into ventilation shaft in (insertion distance is calculated by intermediate rectangular method), and by remaining
The hole for not needing measurement is blocked with plug.
5) change driving motor revolving speed, corresponding air speed value is measured by hand-held anemobiagraph.
6) its mean wind speed is calculated by feature circle calculation method, the circular pipe for being R for radius is divided into several
The concentric loop of area equation.
7) corresponding air quantity can be obtained by calculated mean wind speed being multiplied by area.
8) experimental data is arranged, by comparing air quantity, to determine the ventilator raising efficiency of its improvement.
9) motor is disconnected power supply by housekeeping operation platform.
It is exemplified below using the experimental data measured at the Unpowered ventilation device test measurement platform ventilation shaft center, and
Experiment conclusion out.Experimental result is as shown in table 1 and Fig. 4.
1 wind speed of table and revolving speed, flabellum relation table
Note: wind speed unit is m/s.
From table 1, the Experimental Comparison of Fig. 4, rule can be clearly seen in we:
(1) wind speed in round tube is ordered as, and 5 > 6 > 3 > 0.So we are it can be concluded that ventilation effect according to wind speed
Rate is ordered as 5 > 6 > 3 > 0.According to calculated result, the ventilator of 5 flabellums is added, drafting efficiency compares not
Addition improves 30%.
(2) test data is stablized, and the data result for illustrating that testing stand is measured is more accurate.
Above-described embodiment is only to clearly demonstrate examples for clearly illustrating the present invention, rather than the restriction to embodiment.
For those of ordinary skill in the art, other various forms of variations can also be made on the basis of the above description
Or it changes.Here without can not be also exhaustive to all embodiments.And the obvious variation thus amplified out
Or it changes among still in the protection scope of the utility model.
Claims (6)
1. a kind of Unpowered ventilation device test measurement platform, it is characterised in that: including rack, driving motor, Unpowered ventilation device and
Ventilation shaft, the ventilation shaft, Unpowered ventilation device and driving motor are sequentially arranged at from top to bottom in the rack, described
The top of ventilation shaft is docked and connected with the Unpowered ventilation device bottom inflow end, manages interior middle part and is equipped with anemobiagraph, the nothing
Power ventilation device has a central axis, and one end of the central axis is fixedly connected with the drive shaft of the motor, the other end with set
The flabellum connection being placed in the ventilation shaft top.
2. test measurement platform according to claim 1, it is characterised in that: the middle part of the rack has level table, institute
Unpowered ventilation device to be stated to be detachably arranged on the level table by bolt, the bottom of the rack is equipped with lifting platform,
The ventilation shaft is vertically arranged on the lifting platform and top is abutted with the level table, and the level table is equipped with
It is connected to the through-hole of the ventilation shaft and Unpowered ventilation device.
3. test measurement platform according to claim 1, it is characterised in that: the drive shaft by first connecting rod and it is described in
Mandrel connection, one end of the first connecting rod are coaxially socketed in the drive shaft and by being laterally interspersed in the first connecting rod
Torsion transmitting is realized with the first bolt in drive shaft, and the other end of the first connecting rod is coaxially socketed on the central axis simultaneously
Torsion transmitting is realized by the second bolt being laterally interspersed on the first connecting rod and central axis.
4. test measurement platform according to claim 3, it is characterised in that: the central axis passes through second connecting rod and the fan
Leaf connection, one end of the second connecting rod are fixedly mounted in the axle center axis hole of the flabellum, and the other end is coaxially socketed in described
On central axis and the third bolt by being laterally interspersed on the second connecting rod and central axis realizes torsion transmitting.
5. test measurement platform according to claim 1, it is characterised in that: the tube wall of the ventilation shaft is equipped with for hand-held
The interspersed hole of formula anemobiagraph.
6. test measurement platform according to claim 5, it is characterised in that: described hole is axial at arrangement along communication conduits
It sets.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920262780.5U CN209539615U (en) | 2019-03-01 | 2019-03-01 | A kind of Unpowered ventilation device test measurement platform |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920262780.5U CN209539615U (en) | 2019-03-01 | 2019-03-01 | A kind of Unpowered ventilation device test measurement platform |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN209539615U true CN209539615U (en) | 2019-10-25 |
Family
ID=68274631
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201920262780.5U Active CN209539615U (en) | 2019-03-01 | 2019-03-01 | A kind of Unpowered ventilation device test measurement platform |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN209539615U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113984363A (en) * | 2021-10-29 | 2022-01-28 | 哈尔滨工程大学 | Ventilator test platform, system and method |
| CN114811791A (en) * | 2022-03-22 | 2022-07-29 | 安徽理工大学 | Smoke exhaust device for fire engineering and using method thereof |
-
2019
- 2019-03-01 CN CN201920262780.5U patent/CN209539615U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113984363A (en) * | 2021-10-29 | 2022-01-28 | 哈尔滨工程大学 | Ventilator test platform, system and method |
| CN114811791A (en) * | 2022-03-22 | 2022-07-29 | 安徽理工大学 | Smoke exhaust device for fire engineering and using method thereof |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN209539615U (en) | A kind of Unpowered ventilation device test measurement platform | |
| CN204900343U (en) | Machine in axial fan and air conditioning | |
| CN105756976B (en) | A kind of direct connection flow-mixing blower fan | |
| CN110926824B (en) | Device and method for measuring internal circulation wind resistance characteristic and heat dissipation capacity of generator | |
| Setiawan et al. | The effect of inner fan blade angle to the ventilation rate of the turbine ventilator | |
| CN203130602U (en) | Cross-flow fan for air conditioner, cross-flow blower and air conditioner | |
| CN207701462U (en) | A kind of axial flow blower | |
| CN110805570A (en) | Roof fan with adjustable air volume | |
| CN109595197A (en) | A kind of blower | |
| CN105652031A (en) | Air conditioner pipeline flow velocity monitor | |
| CN206504435U (en) | A kind of powerless ventilation device | |
| CN211039119U (en) | Roof fan with adjustable air volume | |
| CN206360899U (en) | Exhaust blower based on Coanda effect | |
| CN201991818U (en) | Through-flow fan bearing seat applied on air conditioner | |
| CN209687799U (en) | A kind of axial-flow leaf and axial flow blower | |
| Roy et al. | Performance analysis of Savonius-style wind turbines under concentrated and oriented jets | |
| CN203146366U (en) | Radial-acceleration mixed-flow fan | |
| CN109799058B (en) | Double-test-section direct-current wind-gusting wind tunnel with bypass | |
| CN207470465U (en) | A kind of corrosion-resistant Wind Volume herding wind turbine | |
| CN208475601U (en) | The air duct noise-reducing structure of air purifier | |
| CN206469421U (en) | A kind of self-priming outdoor exhaust outlet | |
| Awbi et al. | Full scale model windcatcher performance evaluation using a wind tunnel | |
| CN205533379U (en) | Can accelerate controller of counter -rotating fan gas flow rate | |
| CN209494759U (en) | A kind of blower | |
| CN203628953U (en) | Split wall-mounted type air conditioner and air flue structure thereof |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| TR01 | Transfer of patent right | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20200901 Address after: 439 Huancheng South Road, Kunming, Yunnan Co-patentee after: CENTRAL SOUTH University Patentee after: YUNNAN MAZHAO EXPRESSWAY CONSTRUCTION HEADQUARTERS Address before: Yuelu District City, Hunan province 410083 Changsha Lushan Road No. 932 Patentee before: CENTRAL SOUTH University |