CN209280269U - A kind of experimental rig for simulating skyscraper stack effect - Google Patents
A kind of experimental rig for simulating skyscraper stack effect Download PDFInfo
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- CN209280269U CN209280269U CN201822113281.8U CN201822113281U CN209280269U CN 209280269 U CN209280269 U CN 209280269U CN 201822113281 U CN201822113281 U CN 201822113281U CN 209280269 U CN209280269 U CN 209280269U
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Abstract
The utility model provides a kind of experimental rig for simulating skyscraper stack effect, the device includes: elevator test-bed, fixed device and elevator door-motor system, elevator test-bed includes hoistway door, hoistway door doorframe, elevator cage door, elevator cage door doorframe, baffle and oblique deflector, outside pressure tap is equipped on the outside of hoistway door, pressure tap is located at interior survey and overlays on piece on the inside of hoistway door, connects electric pressure scaner by pressure-measuring pipe.The utility model simulates stack effect using wind pressure, obtains the critical pressure-bearing threshold value of elevator car door system, provides scientific basis to improve performance and the optimization design of elevator electronic product.
Description
Technical field
The utility model relates to elevator electronic products and Building Technology Science field, and in particular to a kind of simulation skyscraper
The experimental rig of stack effect.
Background technique
" stack effect " of super high-rise building refers to heat caused by the difference of the atmospheric density as caused by the temperature difference outside architecture indoor
Pressure effect makes outdoor air through gaps such as curtain wall door and windows to indoor infiltration, and send out along vertical hoistways such as building interior elevators
Life rises or falls, and forms the air penetration phenomenon that influence degree does not wait.In especially winter, indoor/outdoor temperature-difference is excessive to be caused strongly
Stack effect to penetrate into during air is pumped to top layer by bottom by elevator, form powerful convection current, cause
Bottom or the inside and outside pressure difference of top layer hoistway door are excessive, more than the close moment of elevator door-motor, cause hoistway door closing fault with
Entire elevator device is caused to be unable to operate normally.
Stack effect power depends primarily on indoor/outdoor temperature-difference and difference in height the two principal elements, as shown in formula (1):
Wherein: Δ PsPressure difference under stack effect effect, unit Pa；
ρoOutdoor air density, units/kg/m3；
Ti、TOIndoor and outdoor absolute temperature, unit K；
HNPLNeutralize face height, unit m；
H- computed altitude, unit m；
G- acceleration of gravity, takes 9.8m/s2。
Therefore, the super high-rise building stack effect of high latitude area is more significant (due to winter indoor heating, indoor and outdoor
The temperature difference causes greatly), though semi-tropical super high-rise building since elevator is up to hundreds of meters, when winter room temperature is relatively low
Also being easy to happen stack effect leads to elevator operation troubles.Vertical life channel of the elevator as super high-rise building, importance
It is self-evident.
Since stack effect is only in the practical super high-rise building built up, in a kind of uncontrolled of generation of specific season
Air penetration phenomenon, and since the similarity Condition of hot pressing function is difficult to meet in laboratory environments, almost can not
This special effects is directly simulated using test method, leads to people to the understanding of this problem and studies all very poor, table
The design standard in relation to lift product and super high-rise building is still far from perfect in foreign countries at present now, leads to currently many expend
The terrestrial reference that huge fund is built up modernizes skyscraper, occurs unexpected serious stack effect after building up, seriously affects
Build normal usage function.
Utility model content
In order to achieve the above object, the utility model uses following technical scheme:
The utility model provides a kind of experimental rig for simulating skyscraper stack effect, including
Elevator test-bed, fixed device and elevator door-motor system,
The elevator test-bed includes hoistway door, hoistway door doorframe, elevator cage door, elevator cage door doorframe, baffle
With oblique deflector,
The hoistway door is mounted on hoistway door doorframe, and the elevator cage door is mounted on elevator cage door doorframe, institute
It states hoistway door doorframe to connect with elevator cage door doorframe, the baffle is fixedly mounted at left and right sides of hoistway door, described tiltedly to lead
Flowing plate is fixedly mounted on immediately ahead of elevator test-bed,
It is equipped with outside pressure tap on the outside of the hoistway door, interior survey is equipped on the inside of hoistway door and overlays piece, inside overlays piece
Equipped with inside pressure tap, the outside pressure tap passes through pressure-measuring pipe with inside pressure tap and connects electric pressure scaner,
The fixed device is used to elevator test-bed being fixed on wind tunnel laboratory,
The elevator door-motor system is used to control the opening and closing of hoistway door and elevator cage door.
As preferential technical solution, the fixed device includes cantilever steel plate and rack guide rail,
Cantilever steel plate one end is connected with hoistway door doorframe, and the baffle is equipped with bolt limit hole, cantilever steel plate
It is connected by bolt with the bolt limit hole on baffle,
The rack guide rail is located at elevator test-bed lower part, and is fixed by bolts on wind tunnel experiment room floor.
As preferential technical solution, the outside pressure tap and inside pressure tap position are corresponded, outside pressure tap
Surface and pressure-measuring pipe end be in same plane.
As preferential technical solution, it includes multiple chip squares and steel pipe, inside pressure tap that the inside, which is surveyed and overlays piece,
On chip square, inside pressure tap is connected with steel pipe, and steel pipe is connect by pressure-measuring pipe with electric pressure scaner.
As preferential technical solution, the electric pressure scaner has multiple measuring pressure passages, by pressure-measuring pipe and electronics pressure
The measuring pressure passage of power scanning valve connects one to one according to number.
As preferential technical solution, the outside pressure tap is configured according to expected wind force distribution, set-up mode
Are as follows: the crack between a door and its frame position and upper and lower position of close hoistway door are intensive, intermediate region is sparse.
As preferential technical solution, the set-up mode of the outside pressure tap specifically:
Among hoistway door lower edges to door, pressure tap spacing is successively pressed equidistant incremental on the outside of adjacent row, close to door
Position to separate crack between a door and its frame position is stitched, pressure tap spacing is first incremented by the outside of adjacent column successively decreases afterwards, and pressure tap is at least on the outside of hoistway door
Two column of setting.
The utility model compared with prior art, is had the following advantages and beneficial effects:
(1) the utility model provide the hot pressing function effect that a kind of wind pressure simulant elevator door mechanism system is born new method and
Experimental rig is simulated in large-scale boundary layer wind tunnel laboratory due to strong using the experimental rig of simulation skyscraper stack effect
Elevator door opening-closing phenomenon of the failure caused by stack effect obtains in previous design and is difficult to facing for the elevator car door system quantitatively determined
Boundary's pressure-bearing threshold value provides scientific basis to improve performance and the optimization design of elevator electronic product, solves and be stranded for a long time
Disturb the technical problem of elevator electronic product resistance to compression design.
(2) the utility model collects data using the experimental rig of simulation skyscraper stack effect, moves in elevator door
Operating condition under, collect elevator door and work normally until wind force distribution data of elevator door when can not be closed.
(3) the utility model is using the experimental rig for simulating skyscraper stack effect, under the static operating condition of elevator door,
By changing the gap size between two fan hall doors, wind force distribution data of the elevator door at different gaps are collected.
Detailed description of the invention
Fig. 1 is the structural schematic diagram for the experimental rig that the present embodiment simulates skyscraper stack effect；
Fig. 2 is the present embodiment in wind tunnel laboratory schematic diagram；
Fig. 3 is pressure tap layout drawing on the outside of hoistway door；
Fig. 4 is that pressure tap arranges top view on the outside of hoistway door.
Wherein, 1- hoistway door doorframe；2- elevator cage door doorframe；3- baffle；4- cantilever steel plate；5- rack guide rail；6- spiral shell
Bolt limit hole；7- hall door；The oblique deflector of 8-；9- wind-tunnel guide rail.
Specific embodiment
In order to make the purpose of the utility model, technical solutions and advantages more clearly understood, below in conjunction with attached drawing and implementation
Example, the present invention will be further described in detail.It should be appreciated that specific embodiment described herein is only used to explain
The utility model is not used to limit the utility model.
As depicted in figs. 1 and 2, a kind of for simulating the novel test device of skyscraper stack effect, including an electricity
Terraced test-bed is installed gate to elevator cage door doorframe 2, by the installation to hoistway door doorframe 1 of hall door 7 along rack
Guide rail 5 merges hoistway door doorframe 1 and elevator cage door doorframe 2, so that hall door and the spacing of gate tally with the actual situation；Elevator
There are the two cantilever steel plates 4 to connect with it in 1 left and right sides of hall door doorframe respectively, which passes through on bolt and baffle 3
Bolt limit hole 6 is connected, to fixed baffle；The oblique deflector 8 being connected with rack is set in the front of elevator test-bed,
Baffle 3 and oblique deflector 8 elevator door is formed during opening and closing it is certain block and protect, and can make to act on as far as possible
Wind-force on elevator car door system is uniform.It is equipped with outside pressure tap on the outside of the hoistway door, is equipped with interior survey on the inside of hoistway door and presses
Patch, inside overlay piece equipped with inside pressure tap, and the outside pressure tap passes through pressure-measuring pipe with inside pressure tap and connects electronics
Pressure scanning valve, electric pressure scaner are transferred to computer at electric signal by keeping watch pressure conversion, and soft by signal acquisition
Part carries out data acquisition.The electric pressure scaner can measure the wind pressure that different wind-force act on multiple spot on lower hoistway door simultaneously
Power, the inside and outside two sides pressure tap pressure value that electric pressure scaner is measured, which subtracts each other can be obtained, to be acted on hoistway door
Pressure difference.
In the present embodiment, in order to obtain the front and back sides pressure difference of hoistway door 7, the phase drills out two hall door plates 7 in a pre-installation
Pressure-measuring pipe is directly passed through outside pressure tap by outside pressure tap as shown in Figure 3, and is bonded with outside pressure tap and guaranteed to survey pressure
Tube end and hall door outer surface belong to same plane.Piece is overlayed in the interior survey that is pasted with of hall door inner surface, inside overlays piece and is equipped with
Inside pressure tap, and pressure-measuring pipe is connected, finally all pressure-measuring pipe roads are connected with electronic scanner again.The hoistway door
Inside and outside pressure tap position correspond, the surface and pressure-measuring pipe end of pressure tap are in same plane on the outside of hoistway door.
It includes multiple chip squares and steel pipe that the inside, which is surveyed and overlays piece, and chip square is equipped with inside pressure tap, inside pressure tap and steel
Pipe is connected, and steel pipe is connect by pressure-measuring pipe with electric pressure scaner, and electric pressure scaner has 64 measuring pressure passages, presses surveying
It manages and connects one to one with the measuring pressure passage of electric pressure scaner according to number.
In the present embodiment, the outside pressure tap of hoistway door is configured according to expected wind force distribution, set-up mode
Are as follows: the crack between a door and its frame position and upper and lower position of close hoistway door are intensive, intermediate region is sparse.According to these regular apertures, wind can be made
Pressure measurement is more accurate, and test environment can more meet the actual conditions of practical wind pressure wind cloth.Assuming that elevator door 1.2m (width) * 2.1m
(height), most upper row and most under exclusive side pressure tap be arranged in from the position door lower edges 50mm, from elevator door lower edges to
Door is intermediate, and pressure tap spacing is successively incremented by the outside of adjacent row, and meeting first term is 100mm, the arithmetic progression rule that tolerance is 50mm；
Pressure tap is arranged in from the crack between a door and its frame edge position 10mm on the outside of the first row of two crack between a door and its frames, from close to crack between a door and its frame position far from
Crack between a door and its frame position, pressure tap spacing is first incremented by since 15mm on the outside of adjacent column successively decreases afterwards, and preceding four column measuring point spacing meets first term and is
15mm, the arithmetic progression rule that tolerance is 5mm；Pressure tap at least arranges two column on the outside of hoistway door, and spacing is 20mm, close
The outside pressure tap range gate edges of boards edge at door-plate edge is 10mm.
In the present embodiment, pressure tap specific arrangement mode in outside is as shown in Figure 3 and Figure 4: elevator (single fan) door-plate is selected
Size be 2100mm × 465mm (high × wide), arrange 11 row, 13 column wind pressure measuring point altogether thereon, from top to bottom respectively row's pressure tap it
Between spacing be 100mm, 150mm, 200mm, 250mm, 300mm, 300mm, 250mm, 200mm, 150mm, 100mm respectively, and
First row pressure tap and last row's pressure tap are 50mm with a distance from nearest door-plate edge；Side between two hall door door-plates
Cloth spacing is the two column wind pressure measuring points of 20mm altogether, and each column wind pressure measuring point is 10mm apart from nearest door-plate edge, single to fan elevator door
11 column wind pressure measuring points are arranged in plate windward side altogether, by taking right hoistway door as an example, the spacing of each column wind pressure measuring point be respectively 15mm,
20mm, 25mm, 35mm, 40mm, 50mm, 60mm, 90mm, 35mm, 55mm (more sparse close to the side point layout of doorframe),
And first row pressure tap and last column pressure tap are respectively 10mm, 30mm with a distance from nearest door-plate edge.
The present embodiment is in wind tunnel test in use, the rack guide rail 5 below test-bed is fixed by bolts in wind
On the ground of hole, it is connect by bolt with wind-tunnel guide rail 9 above test-bed, also has gusseted to be fixed on behind in test-bed
Wind-tunnel ground, the collective effect of this three guarantee that elevator rack keeps stablizing under Action of Wind pressure.And the electricity that pressure-measuring pipe will be connected
Son scanning valve is put to baffle behind, for collecting the wind pressure data of wind pressure measuring point.According to wind tunnel test needs, moved in elevator door
Operating condition under, collect elevator door and work normally until wind force distribution data of elevator door when can not be closed；It is quiet in elevator door
Under operating condition only, by changing the gap size between two fan hall doors, wind force distribution of the elevator door at different gaps is collected
Data.
Above-described embodiment is the preferable embodiment of the utility model, but the embodiments of the present invention is not by above-mentioned
The limitation of embodiment, it is made under other any spiritual essence and principles without departing from the utility model to change, modify, replacing
In generation, simplifies combination, should be equivalent substitute mode, is included within the protection scope of the utility model.
Claims (7)
1. a kind of experimental rig for simulating skyscraper stack effect, which is characterized in that including
Elevator test-bed, fixed device and elevator door-motor system,
The elevator test-bed include hoistway door, hoistway door doorframe, elevator cage door, elevator cage door doorframe, baffle and tiltedly
Deflector,
The hoistway door is mounted on hoistway door doorframe, and the elevator cage door is mounted on elevator cage door doorframe, the electricity
Terraced hall door doorframe is connected with elevator cage door doorframe, and the baffle is fixedly mounted at left and right sides of hoistway door, the oblique deflector
It is fixedly mounted on immediately ahead of elevator test-bed,
It is equipped with outside pressure tap on the outside of the hoistway door, interior survey is equipped on the inside of hoistway door and overlays piece, inside overlays piece and is equipped with
Inside pressure tap, the outside pressure tap pass through pressure-measuring pipe with inside pressure tap and connect electric pressure scaner,
The fixed device is used to elevator test-bed being fixed on wind tunnel laboratory,
The elevator door-motor system is used to control the opening and closing of hoistway door and elevator cage door.
2. the experimental rig of simulation skyscraper stack effect according to claim 1, which is characterized in that the fixed dress
It sets including cantilever steel plate and rack guide rail,
Cantilever steel plate one end is connected with hoistway door doorframe, and the baffle is equipped with bolt limit hole, and cantilever steel plate passes through
Bolt is connected with the bolt limit hole on baffle,
The rack guide rail is located at elevator test-bed lower part, and is fixed by bolts on wind tunnel experiment room floor.
3. the experimental rig of simulation skyscraper stack effect according to claim 1, which is characterized in that the outside is surveyed
Hole and inside pressure tap position is pressed to correspond, the surface and pressure-measuring pipe end of outside pressure tap are in same plane.
4. the experimental rig of simulation skyscraper stack effect according to claim 1, which is characterized in that the inside is surveyed
Overlaying piece includes multiple chip squares and steel pipe, and inside pressure tap is set on chip square, and inside pressure tap is connected with steel pipe, steel
Pipe is connect by pressure-measuring pipe with electric pressure scaner.
5. the experimental rig of simulation skyscraper stack effect according to claim 4, which is characterized in that the electronics pressure
Power scanning valve has multiple measuring pressure passages, and the measuring pressure passage of pressure-measuring pipe and electric pressure scaner is corresponded according to number and is connected
It connects.
6. the experimental rig of simulation skyscraper stack effect according to claim 1, which is characterized in that the outside is surveyed
Pressure hole is configured according to expected wind force distribution, set-up mode are as follows: close close to the crack between a door and its frame position of hoistway door and upper and lower position
Collection, intermediate region are sparse.
7. the experimental rig of simulation skyscraper stack effect according to claim 6, which is characterized in that the outside is surveyed
Press the set-up mode in hole specifically:
Among hoistway door lower edges to door, pressure tap spacing is successively pressed equidistant incremental on the outside of adjacent row, close to crack between a door and its frame position
Separate crack between a door and its frame position is set, pressure tap spacing is first incremented by the outside of adjacent column successively decreases afterwards, and pressure tap is at least arranged on the outside of hoistway door
Two column.
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| CN201822113281.8U CN209280269U (en) | 2018-12-14 | 2018-12-14 | A kind of experimental rig for simulating skyscraper stack effect |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN109540454A (en) * | 2018-12-14 | 2019-03-29 | 华南理工大学 | A kind of experimental rig and its method for simulating skyscraper stack effect |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109540454A (en) * | 2018-12-14 | 2019-03-29 | 华南理工大学 | A kind of experimental rig and its method for simulating skyscraper stack effect |
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