CN112758792A - Elevator hoistway with pneumatic air outlet adjusting function and optimization method thereof - Google Patents

Elevator hoistway with pneumatic air outlet adjusting function and optimization method thereof Download PDF

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Publication number
CN112758792A
CN112758792A CN202011463811.7A CN202011463811A CN112758792A CN 112758792 A CN112758792 A CN 112758792A CN 202011463811 A CN202011463811 A CN 202011463811A CN 112758792 A CN112758792 A CN 112758792A
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Prior art keywords
elevator
air outlet
elevator shaft
car
air
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李琛
夏程豪
奚永新
李东洋
程建山
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China Jiliang University
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China Jiliang University
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    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B66—HOISTING; LIFTING; HAULING
    • B66B—ELEVATORS; ESCALATORS OR MOVING WALKWAYS
    • B66B11/00—Main component parts of lifts in, or associated with, buildings or other structures
    • B66B11/02—Cages, i.e. cars
    • B66B11/0226—Constructional features, e.g. walls assembly, decorative panels, comfort equipment, thermal or sound insulation
    • B66B11/024—Ventilation systems
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B66—HOISTING; LIFTING; HAULING
    • B66B—ELEVATORS; ESCALATORS OR MOVING WALKWAYS
    • B66B11/00—Main component parts of lifts in, or associated with, buildings or other structures
    • B66B11/02—Cages, i.e. cars
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B66—HOISTING; LIFTING; HAULING
    • B66B—ELEVATORS; ESCALATORS OR MOVING WALKWAYS
    • B66B17/00—Hoistway equipment
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24—HEATING; RANGES; VENTILATING
    • F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
    • F24F13/00—Details common to, or for air-conditioning, air-humidification, ventilation or use of air currents for screening
    • F24F13/28—Arrangement or mounting of filters
    • G—PHYSICS
    • G10—MUSICAL INSTRUMENTS; ACOUSTICS
    • G10K—SOUND-PRODUCING DEVICES; METHODS OR DEVICES FOR PROTECTING AGAINST, OR FOR DAMPING, NOISE OR OTHER ACOUSTIC WAVES IN GENERAL; ACOUSTICS NOT OTHERWISE PROVIDED FOR
    • G10K11/00—Methods or devices for transmitting, conducting or directing sound in general; Methods or devices for protecting against, or for damping, noise or other acoustic waves in general
    • G10K11/16—Methods or devices for protecting against, or for damping, noise or other acoustic waves in general
    • G10K11/162—Selection of materials

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Civil Engineering (AREA)
  • Structural Engineering (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • General Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • Acoustics & Sound (AREA)
  • Multimedia (AREA)
  • Lift-Guide Devices, And Elevator Ropes And Cables (AREA)

Abstract

The invention discloses an elevator shaft with an air outlet for adjusting pneumatic performance and an optimization method thereof, belonging to the field of elevators, the elevator shaft with the air outlet for adjusting pneumatic performance and the optimization method thereof comprise an elevator shaft and a car arranged in the elevator shaft, the right end of the elevator shaft is provided with an air outlet, air inside and outside the elevator shaft can be circulated by arranging the air outlet on the elevator shaft, the air pressure in the elevator shaft is reduced, further, when a high-speed elevator runs in the elevator shaft, turbulent flow formed on the surface of the car by air is reduced, the resistance of the car is reduced, the safety and the stability of the car in running are effectively improved, and dust can be effectively prevented from entering the shaft due to air flowing by a drainage groove by arranging a dustproof drainage plate in the air outlet, noise generated in the running process of the car is adsorbed by sound-absorbing cotton, and the normal use of running equipment of the elevator is effectively ensured, the user experience is improved.

Description

Elevator hoistway with pneumatic air outlet adjusting function and optimization method thereof
Technical Field
The invention relates to the field of elevators, in particular to an elevator shaft with a pneumatic air outlet and an optimization method thereof.
Background
An elevator is a permanent transport device serving a number of specific floors in a building, the cars of which travel in at least two rigid tracks perpendicular to the horizontal or inclined at an angle of less than 15 ° to the vertical. The vertical lift elevator has a car that runs between at least two vertical rows of rigid guide rails or guide rails with an angle of inclination of less than 15 °. The size and the structural form of the car are convenient for passengers to access or load and unload goods. It is customary to use elevators as a generic term for vertical transport means in buildings, irrespective of their drive mode. According to the speed, the elevator can be divided into a low-speed elevator (below 4 m/s), a high-speed elevator (4-12 m/s) and a high-speed elevator (above 12 m/s).
The elevator shaft is a shaft for installing an elevator, the size of the shaft is determined according to the type selection of the elevator, an elevator track and a counterweight track are installed on the wall of the shaft, an elevator door is installed in a reserved door opening, and an elevator machine room is arranged at the top of the shaft. The elevator with a machine room is used for 630kg, the size of the elevator car is 1.1m × 1.4m, the size of the shaft is 1.7m × 2.1m, the height of the shaft is 56m, namely the height of 20 floors, and the elevator shaft is generally a complex slender structure.
When the high-speed elevator runs in the hoistway at a high speed, air limited in the hoistway can flow over the surface of the elevator at a high speed, due to the complex structural appearance of the elevator and the asymmetry of the two side spaces, high-speed airflow can be separated and form turbulence when flowing over the surface of the elevator, extra resistance can be applied to the elevator by aerodynamic force generated by the turbulence, the elevator is caused to shake and generate aerodynamic noise, and the running safety and stability of the elevator are greatly influenced.
Disclosure of Invention
1. Technical problem to be solved
Aiming at the problems in the prior art, the invention aims to provide an elevator shaft with an air outlet for adjusting the aerodynamic performance and an optimization method thereof.
2. Technical scheme
In order to solve the above problems, the present invention adopts the following technical solutions.
The utility model provides an elevator well with adjust aerodynamic air outlet, includes elevator well and the car of setting in the elevator well, the air outlet has been seted up to elevator well right-hand member, and the air outlet is located car door one side, a plurality of connecting rods of the equal fixedly connected with of inner wall around the air outlet, corresponding two threaded connection has dustproof drainage plate between the connecting rod, a plurality of drainage grooves have been seted up to dustproof drainage plate lower extreme, the slope of inner wall sets up under the drainage groove, and the inclination of inner wall is 1-3 under the drainage groove, the sound-absorbing chamber has been seted up to dustproof drainage plate upper end, and the sound-absorbing intracavity is provided with to inhale the sound cotton, the suction hole that switches on mutually with the sound-absorbing chamber is all seted up at. Through seting up the air outlet on the elevator well, make the inside and outside air of elevator well circulate, reduce the atmospheric pressure in the elevator well, and then make high-speed elevator when the elevator is in the elevator well operation, reduce the torrent that the air formed on car surface, reduce the resistance of car, effectively improve security and stability of car when the operation, and through set up dustproof drainage plate in the air outlet, the effective separation dust of drainage groove is because in the air flow gets into the well, inhale the noise that the sound cotton produced to the car operation in-process and adsorb, effectively guarantee the normal use of elevator operation equipment, improve user experience and feel.
Furthermore, the number of the air outlets formed in the elevator hoistway is two, and the distance between the two air outlets is 1.1-1.3 times of the full travel distance of the car. Air outlets are formed in the upper end and the lower end of the elevator shaft, air flow generated when the car moves can be effectively circulated, balance of the car when the car moves up and down is effectively guaranteed, balance of air convection on two sides of the car is effectively improved, and running resistance is reduced.
Furthermore, the shape of the air outlet is square. The air outlet construction degree of difficulty of square is low, reduces construction cost, is convenient for be applied to in the reality, effectively improves the efficiency of construction of elevator well, can effectively be applicable to less, the not high and lower elevator field of use intensity of operation precision.
Further, the shape of the air outlet is circular. The circular air outlet can effectively improve the flowing of air, reduce the resistance of air flowing, can increase 14% of the amplitude of fall in comparison with the square air outlet, and can be effectively suitable for the elevator field which is larger, has higher operation precision and higher use strength.
In addition, the invention also discloses a method for designing the elevator shaft with the pneumatic air outlet, which comprises the following steps:
s1, establishing a standard model of an elevator shaft and a car, and simplifying the elevator shaft;
s2, air outlets with different specifications and quantities are formed in the elevator shaft:
scheme A: two air outlets of 1m multiplied by 1m are arranged on the elevator shaft;
scheme B: an air outlet of 1m multiplied by 1m is arranged on the elevator shaft;
scheme C: the lift shaft is provided with
Figure RE-GDA0003001145280000031
Two air outlets;
s3, dividing the same scheme into two situations according to whether a dustproof drainage plate is arranged on the air outlet;
s4, carrying out grid division on the standard model of each scheme by using ICEM software;
s5, simulating the movement of the lift car in the lift shaft by using simulation software, and setting technical parameters;
s6, analyzing and comparing the simulation result;
s7, selecting a scheme with the best effect to perform experimental verification according to the simulation result;
and S8, finishing the design of arranging an air outlet in the elevator shaft. Through setting up the elevator well model of standard, the scheme of seting up of a plurality of air outlets contrasts, effectively realizes contrasting the verification of different quantity and specification air outlets, the effect of elevator well in the simulation scheme to the scheme of air outlet is optimized in the play of calculation, effectively improves and optimizes efficiency, improves the rationality that the air outlet was provided with.
Further, the simplification of the elevator shaft in step S1 includes omitting the wire rope, the door motor, the spring damping and the running rail. By neglecting the structure in the elevator shaft, the pressure of analog operation is effectively reduced, the operation speed is increased, and the operation error is reduced.
Further, in step S2, an unstructured grid is used, and the elevator shaft is divided into twenty-four million hexahedral cells. The elevator shaft is divided by adopting the unstructured grids, so that the force and the strain generated on the surface of the car can be conveniently analyzed, the analysis precision is improved, the accuracy of the air outlet is effectively ensured, and the air mobility in the elevator shaft can be adjusted.
Further, the simulation in step S4 is: using FLUENT software, a transient is selected and gravity is added in the Z-axis direction at-9.81 m/s2 and a boundary adjustment is set for the standard model.
In addition, the invention also discloses a construction method of the elevator shaft with the pneumatic air outlet, which comprises the following steps:
s1, determining the size of an air outlet according to the overall dimension of an elevator shaft;
s2, selecting an outer die, an inner die and a through-wall bolt to form a corresponding elevator shaft;
s3, arranging perforated templates at positions of the outer mold and the inner mold, which correspond to the air outlets;
s4, selecting corresponding quantity and specification of dustproof drainage plates according to the size of the air outlet, and connecting rods are in threaded connection with the left end and the right end of each dustproof drainage plate;
s5, fixing the connecting rod on the inner wall of the air outlet by using the expansion screw, and enabling the dustproof drainage plate to incline.
Further, the installation manner of the dustproof flow guide plate in the step S5 is as follows: one side surface of the drainage groove on the dustproof drainage plate faces the inner side of the elevator shaft, and the inclination angle of the drainage groove is inclined downwards. Through setting up the inclination of drainage groove downwards, the inner wall produces the resistance to outside dust under the drainage groove, reduces in outside dust gets into the elevator well, improves the life of elevator operation device in the elevator well to the inner wall can effectively guide the elevator well in because the dust that the car operation was raised up outwards discharges from the air outlet under the drainage groove, with the dust content in the elevator well, improves the cleanliness factor in the elevator well.
3. Advantageous effects
Compared with the prior art, the invention has the advantages that:
(1) this scheme is through seting up the air outlet on the elevator well, make the inside and outside air of elevator well circulate, reduce the atmospheric pressure in the elevator well, and then make high-speed elevator when the elevator is in the elevator well operation, reduce the torrent that the air formed on the car surface, reduce the resistance of car, effectively improve the security and the stability of car when the operation, and through set up dustproof drainage plate in the air outlet, the effective separation dust of drainage groove is because in the air flow gets into the well, inhale the noise that the sound cotton produced to the car operation in-process and adsorb, effectively guarantee the normal use of elevator operation equipment, improve user experience and feel.
(2) Air outlets are formed in the upper end and the lower end of the elevator shaft, air flow generated when the car moves can be effectively circulated, balance of the car when the car moves up and down is effectively guaranteed, balance of air convection on two sides of the car is effectively improved, and running resistance is reduced.
(3) The air outlet construction degree of difficulty of square is low, reduces construction cost, is convenient for be applied to in the reality, effectively improves the efficiency of construction of elevator well, can effectively be applicable to less, the not high and lower elevator field of use intensity of operation precision.
(4) The circular air outlet can effectively improve the flowing of air, reduce the resistance of air flowing, can increase 14% of the amplitude of fall in comparison with the square air outlet, and can be effectively suitable for the elevator field which is larger, has higher operation precision and higher use strength.
(5) Through setting up the elevator well model of standard, the scheme of seting up of a plurality of air outlets contrasts, effectively realizes contrasting the verification of different quantity and specification air outlets, the effect of elevator well in the simulation scheme to the scheme of air outlet is optimized in the play of calculation, effectively improves and optimizes efficiency, improves the rationality that the air outlet was provided with.
(6) By neglecting the structure in the elevator shaft, the pressure of analog operation is effectively reduced, the operation speed is increased, and the operation error is reduced.
(7) The elevator shaft is divided by adopting the unstructured grids, so that the force and the strain generated on the surface of the car can be conveniently analyzed, the analysis precision is improved, the accuracy of the air outlet is effectively ensured, and the air mobility in the elevator shaft can be adjusted.
(8) Through setting up the inclination of drainage groove downwards, the inner wall produces the resistance to outside dust under the drainage groove, reduces in outside dust gets into the elevator well, improves the life of elevator operation device in the elevator well to the inner wall can effectively guide the elevator well in because the dust that the car operation was raised up outwards discharges from the air outlet under the drainage groove, with the dust content in the elevator well, improves the cleanliness factor in the elevator well.
Drawings
FIG. 1 is a schematic view of an axial structure of the present invention;
FIG. 2 is a schematic diagram of the structure at A in FIG. 1 according to the present invention;
FIG. 3 is a schematic view of the bottom view axial view of the dustproof flow guide plate of the present invention;
FIG. 4 is a schematic bottom view of the dustproof flow-guiding plate of the present invention;
FIG. 5 is a schematic left-side sectional view of the dustproof drainage plate of the present invention;
FIG. 6 is a schematic diagram of the structure of the inclination angle of the drainage groove of the present invention;
FIG. 7 is a schematic view of an axial structure of an outlet according to the present invention;
FIG. 8 is a schematic view of an axial structure of two circular outlets according to the present invention;
FIG. 9 is a structural diagram of the car of the present invention in the direction of force and moment;
FIG. 10 is a structural diagram of a resistance calculation formula according to the present invention;
FIG. 11 is a schematic diagram of the aerodynamic resistance variation curve structure of the present invention;
FIG. 12 is a structural diagram illustrating the variation of the z-direction resistance coefficient according to various aspects of the present invention.
The reference numbers in the figures illustrate:
1 elevator well, 2 air outlets, 3 dustproof drainage plates, 301 drainage groove, 302 sound-absorbing cavity, 4 connecting rods, 5 inhale the inclination of sound cotton, a drainage groove.
Detailed Description
The technical solution in the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention; it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all embodiments, and all other embodiments obtained by those skilled in the art without any inventive work are within the scope of the present invention.
In the description of the present invention, it should be noted that the terms "upper", "lower", "inner", "outer", "top/bottom", and the like indicate orientations or positional relationships based on those shown in the drawings, and are only for convenience of description and simplification of description, but do not indicate or imply that the referred device or element must have a specific orientation, be constructed in a specific orientation, and be operated, and thus should not be construed as limiting the present invention. Furthermore, the terms "first" and "second" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance.
In the description of the present invention, it should be noted that, unless otherwise explicitly specified or limited, the terms "mounted," "disposed," "sleeved/connected," "connected," and the like are to be construed broadly, e.g., "connected," which may be fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meanings of the above terms in the present invention can be understood in specific cases to those skilled in the art.
Example 1:
please refer to fig. 1-8, an elevator well with an air outlet for adjusting aerodynamic performance, including elevator well 1 and the car of setting in elevator well 1, air outlet 2 has been seted up to elevator well 1 right-hand member, and air outlet 2 is located car door one side, equal fixedly connected with a plurality of connecting rods 4 of inner wall around the air outlet 2, threaded connection has dustproof drainage plate 3 between two corresponding connecting rods 4, a plurality of drainage grooves 301 have been seted up to dustproof drainage plate 3 lower extreme, the inner wall slope sets up under drainage groove 301, and the inclination of inner wall is 1-3 under drainage groove 301, sound-absorbing chamber 302 has been seted up to dustproof drainage plate 3 upper end, and be provided with in the sound-absorbing chamber 302 and inhale sound cotton 5, the suction hole that switches on mutually with sound-absorbing chamber 302 is all seted up at dustproof drainage plate 3 upper and. Through seting up air outlet 2 on elevator well 1, make the inside and outside air of elevator well 1 circulate, reduce the atmospheric pressure in the elevator well 1, and then make high-speed elevator when elevator is in 1 interior operation of elevator well, reduce the torrent that the air formed on the car surface, reduce the resistance of car, effectively improve the security and the stability of car when the operation, and through set up dustproof drainage plate 3 in air outlet 2, the effective separation dust of drainage groove 301 is because in the air flow gets into the well, inhale the noise that sound cotton 5 produced the car operation in-process and adsorb, effectively guarantee the normal use of elevator operation equipment, improve user experience and feel.
Referring to fig. 1, the number of the air outlets 2 opened in the elevator shaft 1 is two, and the distance between the two air outlets 2 is 1.1 to 1.3 times of the full travel distance of the car. Air outlets 2 are formed in the upper end and the lower end of the elevator shaft 1, air flowing generated when the car moves can be effectively circulated, balance of the car when the car moves up and down is effectively guaranteed, balance of air convection on two sides of the car is effectively improved, and running resistance is reduced.
Referring to fig. 1 and 7, the outlet 2 is square. The air outlet 2 of square is under construction the degree of difficulty is low, reduces construction cost, is convenient for be applied to in the reality, effectively improves elevator well 1's efficiency of construction, can effectively be applicable to less, the not high and lower elevator field of use intensity of operation precision.
Referring to fig. 8, the outlet 2 is circular. Circular shape air outlet 2 can be effectively to improving the flow of air, reduces the resistance that the air flows, can increase 14% fall the range in the air outlet 2 of square, can effectively be applicable to great, the operation precision is higher and use intensity great elevator field.
Example 2:
referring to fig. 1 to 12, wherein the same or corresponding components as those in embodiment 1 are designated by the same reference numerals as those in embodiment 1, only the points different from embodiment 1 will be described below for the sake of convenience. This example 2 differs from example 1 in that: referring to fig. 1-12, a method for designing an elevator shaft with a regulated pneumatic outlet includes the following steps:
s1, establishing a standard model of an elevator shaft 1 and a lift car, and simplifying the elevator shaft 1;
s2, air outlets 2 with different specifications and quantities are arranged on the elevator shaft 1:
scheme A: two air outlets 2 with the diameter of 1m multiplied by 1m are arranged on the elevator shaft 1;
scheme B: an air outlet 2 with the diameter of 1m multiplied by 1m is arranged on the elevator shaft 1;
scheme C: an elevator shaft 1 is provided with
Figure RE-GDA0003001145280000081
Two air outlets 2;
s3, dividing the same scheme into two situations according to whether the dustproof drainage plate 3 is arranged on the air outlet 2 or not;
s4, carrying out grid division on the standard model of each scheme by using ICEM software;
s5, simulating the movement of the lift car in the lift shaft 1 by using simulation software, and setting technical parameters;
s6, analyzing and comparing the simulation result;
s7, selecting a scheme with the best effect to perform experimental verification according to the simulation result;
and S8, finishing the design of arranging the air outlet 2 on the elevator shaft 1. Through the elevator well 1 model that sets up the standard, the scheme of seting up of a plurality of air outlets 2 contrasts, effectively realizes the verification to different quantity and specification air outlet 2, contrasts the effect of elevator well 1 in the simulation scheme to the scheme of air outlet 2 is optimized in the play of calculation, effectively improves optimization efficiency, improves the rationality that air outlet 2 was provided with.
Referring to fig. 1, the simplification of the elevator shaft 1 in step S1 includes omitting the wire rope, the door motor, the spring damping, and the running rail. By neglecting the structure in the elevator shaft 1, the pressure of analog operation is effectively reduced, the operation speed is increased, and the operation error is reduced.
Referring to fig. 1, an unstructured grid is used in step S2, and the elevator shaft 1 is divided into twenty-four million hexahedral cells. The elevator shaft 1 is divided by adopting the unstructured grids, so that the force and the strain generated on the surface of the car can be conveniently analyzed, the analysis precision is improved, the accuracy of the air outlet 2 is effectively ensured, and the air mobility in the elevator shaft 1 can be adjusted.
Referring to fig. 1, the simulation in step S4 is: using FLUENT software, a transient is selected and gravity is added in the Z-axis direction at-9.81 m/s2 and a boundary adjustment is set for the standard model.
Through calculation, as the Mach number of air in the elevator shaft 1 is far less than 0.3 and the Reynolds number is far more than 4000, the air does unsteady incompressible turbulent motion; simulating by FLUENT software, selecting transient state, and adding gravity in the direction of z-axis and the size of-9.81 m/s2(ii) a The standard k-epsilon model was chosen. Because the car and the counterweight move in opposite directions, a moving grid technology is adopted, and a method of light sequence and reconstruction is selected to regenerate the grid; and compiling a profile file to define the operation of the car and the counterweightIn a dynamic state, the highest speed of the car and the counterweight is 3m/s, and the acceleration is 1.5m/s2The directions are opposite.
The setting of the boundary conditions is a key ring in FLUENT simulation, and the selection of the appropriate boundary conditions has important significance on the accuracy of simulation results. Because the elevator shaft 1 is a closed space, the boundary condition of the walls around the elevator shaft 1 is set as wwall, the motion type of the walls is a static wall, and the shearing condition is no slippage: the type of the inner space of the well is set as the interface, and the fluid medium is air: since the car and the counterweight are moving objects, the region types of the car and the counterweight are set as rigid bodies in the moving grid. 0.02s is taken as a time step, the maximum iteration number of each time step is 40, and the calculation time length is 35 s.
The local coordinates of the car force direction and the moment center are shown in fig. 9, the formula for calculating the resistance is shown in fig. 10, wherein FrThe air resistance N is defined as x, y and z, and x, y and z directions are represented; crIs a coefficient of resistance; rho is air density kg/m3(ii) a A is a reference area m2(ii) a v is the gas flow velocity m/s relative to the object. Referring to fig. 11(a), the car resistance in the x direction is substantially positive, and the resistance in the second half of the car operation is significantly greater than that in the first half. This is caused by the unequal front and rear spaces of the car and the greater air turbulence in the latter half than in the former half. Referring to fig. 11(b), the resistance variation curve in the y direction of the car is shown, since the spaces on the left and right sides of the car are equal, the air flow rate and pressure are substantially the same, and the force applied to the car is substantially equal, so FyThere are significant unsteady characteristics, both fluctuating around 0. Z-direction resistance F of cagezThe variation curve is shown in FIG. 11(c), the second half F of the carzF having an absolute value slightly greater than the first halfzThis is because the turbulence has a certain influence on the aerodynamic properties of the elevator. Comparing the three graphs, it can be seen that FzIs much larger than FxAnd FyThe pneumatic resistance of the lift car is mainly Fz。
Referring to FIG. 12, the values and trends of the solutions A and C are approximately the same, and the results of the solution B and the tuyere-free solution are substantially the same, so that the solution can be seenB has no improving effect on the z-direction resistance of the car. It can be concluded that: z-direction resistance F of opening upper and lower tuyere than only one lower tuyerezTo be smaller, the resistance F of the scheme A and the scheme C to the z directionzThe reduction effect of (A) is substantially the same, calculated as the resistance FzThe decrease was about 22.05%.
Example 3:
referring to fig. 1, wherein the same or corresponding components as those in embodiment 1 are designated by the same reference numerals as those in embodiment 1, only the points different from embodiment 1 will be described below for the sake of convenience. This example 3 differs from example 1 in that: the invention also discloses a construction method of the elevator shaft with the pneumatic air outlet, which comprises the following steps:
s1, determining the size of an air outlet 2 according to the overall dimension of an elevator shaft 1;
s2, selecting an external mold, an internal mold and a wall-penetrating bolt to form a corresponding elevator shaft 1;
s3, arranging perforated templates at the positions of the outer mold and the inner mold, which correspond to the air outlets 2;
s4, selecting the corresponding number and specification of dustproof drainage plates 3 according to the size of the air outlet 2, and connecting rods 4 are in threaded connection with the left end and the right end of each dustproof drainage plate 3;
s5, fixing the connecting rod 4 on the inner wall of the air outlet 2 by using an expansion screw, and enabling the dustproof drainage plate 3 to incline.
Further, the installation manner of the dustproof flow guide plate 3 in the step S5 is as follows: the side surface of the drainage groove 301 of the dustproof drainage plate 3 faces the inner side of the elevator shaft 1, and the inclination angle of the drainage groove 301 is inclined downwards. Through setting up drainage groove 301's inclination downwards, the inner wall produces the resistance to outside dust under drainage groove 301, reduces in outside dust gets into elevator well 1, improves the life of elevator operation device in elevator well 1 to inner wall can effectively guide elevator well 1 in because the dust that the car operation was kicked up outwards discharges from air outlet 2 under drainage groove 301, with the dust content in elevator well 1, improves the cleanliness factor in elevator well 1.
The foregoing is only a preferred embodiment of the present invention; the scope of the invention is not limited thereto. Any person skilled in the art should be able to cover the technical scope of the present invention by equivalent or modified solutions and modifications within the technical scope of the present invention.

Claims (10)

1. An elevator well with a regulated aerodynamic air outlet, comprising an elevator well (1) and a car arranged in the elevator well (1), characterized in that: air outlet (2) have been seted up to elevator well (1) right-hand member, and air outlet (2) are located car door one side, a plurality of connecting rods of the equal fixedly connected with of inner wall (4), corresponding two between connecting rod (4) threaded connection has dustproof drainage plate (3), a plurality of drainage grooves (301) have been seted up to dustproof drainage plate (3) lower extreme, the inner wall slope sets up under drainage groove (301), and the inclination of inner wall is 1-3 under drainage groove (301), sound-absorbing chamber (302) have been seted up to dustproof drainage plate (3) upper end, and are provided with in sound-absorbing chamber (302) and inhale sound cotton (5), the suction hole that switches on mutually with sound-absorbing chamber (302) is all seted up at both ends about dustproof drainage plate (3).
2. An elevator hoistway with regulated aerodynamic air egress according to claim 1, wherein: the elevator hoistway (1) is provided with two air outlets (2), and the distance between the two air outlets (2) is 1.1-1.3 times of the full travel distance of the car.
3. An elevator hoistway with regulated aerodynamic air egress according to claim 1, wherein: the air outlet (2) is square.
4. An elevator hoistway with regulated aerodynamic air egress according to claim 1, wherein: the air outlet (2) is circular.
5. The method of optimizing an elevator hoistway with regulated aerodynamic drafts of claim 1, wherein: the method comprises the following steps:
s1, establishing a standard model of an elevator shaft (1) and a car, and simplifying the elevator shaft (1);
s2, arranging air outlets (2) with different specifications and quantities on the elevator hoistway (1):
scheme A: two air outlets (2) with the diameter of 1m multiplied by 1m are arranged on the elevator shaft (1);
scheme B: an air outlet (2) with the diameter of 1m multiplied by 1m is arranged on the elevator shaft (1);
scheme C: an elevator shaft (1) is provided with
Figure FDA0002832393180000011
Two air outlets (2);
s3, dividing the same scheme into two situations according to whether the dustproof drainage plate (3) is arranged on the air outlet (2);
s4, carrying out grid division on the standard model of each scheme by using ICEM software;
s5, simulating the movement of the lift car in the lift shaft (1) by using simulation software, and setting technical parameters;
s6, analyzing and comparing the simulation result;
s7, selecting a scheme with the best effect to perform experimental verification according to the simulation result;
and S8, finishing the design of arranging an air outlet (2) on the elevator shaft (1).
6. The method of optimizing an elevator hoistway with regulated aerodynamic drafts according to claim 5, wherein: the simplification of the elevator shaft (1) in the step S1 includes omitting the wire rope, the door motor, the spring shock absorption and the running rail.
7. The method of optimizing an elevator hoistway with regulated aerodynamic drafts according to claim 5, wherein: in step S2, an unstructured grid is used, and the elevator shaft (1) is divided into twenty-four million hexahedral cells.
8. According to the claimsThe optimization method of the elevator shaft with the pneumatic air outlet is characterized by comprising the following steps: the simulation in the step S4 is: using FLUENT software, selecting transient state, adding Z axis in the adding direction of-9.81 m/s2 ofGravity and setting boundary adjustment for the standard model.
9. The method of claim 1, wherein the method comprises the steps of: the method comprises the following steps:
s1, determining the size of an air outlet (2) according to the overall size of an elevator shaft (1);
s2, selecting an outer die, an inner die and a wall-penetrating bolt to form a corresponding elevator shaft (1);
s3, arranging perforated templates at the positions of the outer mold and the inner mold corresponding to the air outlet (2);
s4, selecting corresponding quantity and specification of dustproof drainage plates (3) according to the size of the air outlet (2), and connecting rods (4) are in threaded connection with the left end and the right end of each dustproof drainage plate (3);
s5, fixing the connecting rod (4) on the inner wall of the air outlet (2) by using an expansion screw, and enabling the dustproof drainage plate (3) to incline.
10. The method of claim 9, wherein the method comprises the steps of: the installation mode of the dustproof drainage plate (3) in the step S5 is as follows: one side surface of the drainage groove (301) on the dustproof drainage plate (3) faces the inner side of the elevator shaft (1), and the inclination angle of the drainage groove (301) is inclined downwards.
CN202011463811.7A 2020-12-11 2020-12-11 Elevator hoistway with pneumatic air outlet adjusting function and optimization method thereof Pending CN112758792A (en)

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