CN111332909A - Air interchanger for ventilation of elevator - Google Patents
Air interchanger for ventilation of elevator Download PDFInfo
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- CN111332909A CN111332909A CN202010177575.6A CN202010177575A CN111332909A CN 111332909 A CN111332909 A CN 111332909A CN 202010177575 A CN202010177575 A CN 202010177575A CN 111332909 A CN111332909 A CN 111332909A
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- ventilation
- baffle
- elevator
- car body
- spring
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- 238000009423 ventilation Methods 0.000 title claims abstract description 94
- 239000000428 dust Substances 0.000 claims description 15
- 239000007787 solid Substances 0.000 claims description 6
- 238000004321 preservation Methods 0.000 abstract description 3
- 230000003068 static effect Effects 0.000 abstract description 3
- 230000001133 acceleration Effects 0.000 description 30
- 238000001914 filtration Methods 0.000 description 14
- 230000000694 effects Effects 0.000 description 13
- 230000006835 compression Effects 0.000 description 11
- 238000007906 compression Methods 0.000 description 11
- 239000004745 nonwoven fabric Substances 0.000 description 10
- 239000004677 Nylon Substances 0.000 description 8
- 208000002173 dizziness Diseases 0.000 description 8
- 229920001778 nylon Polymers 0.000 description 8
- 206010008479 Chest Pain Diseases 0.000 description 7
- 230000000903 blocking effect Effects 0.000 description 7
- 230000009471 action Effects 0.000 description 5
- 230000001174 ascending effect Effects 0.000 description 5
- 230000000630 rising effect Effects 0.000 description 5
- 239000000463 material Substances 0.000 description 4
- 239000002184 metal Substances 0.000 description 4
- 229910001220 stainless steel Inorganic materials 0.000 description 4
- 239000010935 stainless steel Substances 0.000 description 4
- 238000000034 method Methods 0.000 description 3
- 230000009467 reduction Effects 0.000 description 3
- 230000004888 barrier function Effects 0.000 description 2
- 230000007547 defect Effects 0.000 description 1
- 238000009413 insulation Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 239000011148 porous material Substances 0.000 description 1
Images
Classifications
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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
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- 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
- F24F13/02—Ducting arrangements
-
- 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
- F24F13/08—Air-flow control members, e.g. louvres, grilles, flaps or guide plates
- F24F13/10—Air-flow control members, e.g. louvres, grilles, flaps or guide plates movable, e.g. dampers
- F24F13/105—Air-flow control members, e.g. louvres, grilles, flaps or guide plates movable, e.g. dampers composed of diaphragms or segments
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- 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
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
- F24F7/00—Ventilation
- F24F7/04—Ventilation with ducting systems, e.g. by double walls; with natural circulation
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
- F24F8/00—Treatment, e.g. purification, of air supplied to human living or working spaces otherwise than by heating, cooling, humidifying or drying
- F24F8/10—Treatment, e.g. purification, of air supplied to human living or working spaces otherwise than by heating, cooling, humidifying or drying by separation, e.g. by filtering
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
- F24F8/00—Treatment, e.g. purification, of air supplied to human living or working spaces otherwise than by heating, cooling, humidifying or drying
- F24F8/10—Treatment, e.g. purification, of air supplied to human living or working spaces otherwise than by heating, cooling, humidifying or drying by separation, e.g. by filtering
- F24F8/108—Treatment, e.g. purification, of air supplied to human living or working spaces otherwise than by heating, cooling, humidifying or drying by separation, e.g. by filtering using dry filter elements
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- General Engineering & Computer Science (AREA)
- Civil Engineering (AREA)
- Structural Engineering (AREA)
- Cage And Drive Apparatuses For Elevators (AREA)
Abstract
The invention discloses a ventilation device for elevator ventilation, which comprises a car body, a first baffle and a second baffle, wherein an upper ventilation box and a lower ventilation box are fixedly connected to two sides of the car body respectively, a first air inlet is formed in the upper part of the upper ventilation box, one side of the upper ventilation box is communicated with the car body through a first communicating pipe, a second air inlet is formed in the lower part of the lower ventilation box, and one side of the lower ventilation box is communicated with the car body through a second communicating pipe. The air interchanger for the ventilation of the elevator does not need energy, performs air interchange in an accelerating way when the elevator ascends or descends in an accelerating way, keeps a sealed heat preservation state when the elevator runs at a constant speed or is static, is matched with the existing fan air interchanger for use, and is more energy-saving and higher in air interchange efficiency.
Description
Technical Field
The invention belongs to the technical field of elevator ventilation, and particularly relates to a ventilation device for elevator ventilation.
Background
With the increase in the height of buildings, elevators have also been accelerated. However, for very high buildings, particularly tower buildings with heights exceeding three hundred meters, the elevator speed is increased. But the elevator speed is too fast, and the car will guarantee fine gas tightness, and the passenger can not produce uncomfortable because the noise is too big, and at this moment the car needs to have good ventilation effect to guarantee passenger's travelling comfort.
In the prior art, exhaust fans are often used for ventilation in order to ensure the comfort of the passengers in the elevator car. However, the common exhaust fan is slow in ventilation speed, and is prone to causing air tightness, dizziness and the like in elevators with many people, and particularly when the elevators rise or fall in an accelerated manner, the passengers are prone to discomfort due to the air tightness when the human body is in an overweight or weightless state.
In view of the above-mentioned problems in the prior art, the present invention provides a ventilation device for ventilation of an elevator, and more particularly, to a device capable of accelerating ventilation when an elevator ascends or descends at an accelerated speed.
Disclosure of Invention
The invention aims to solve the defects in the prior art and provides a ventilation device for an elevator.
In order to achieve the purpose, the invention adopts the following technical scheme:
the utility model provides a be used for elevator ventilation device, includes car body, first baffle and second baffle, the both sides of car body are connected with last ventilation case and lower ventilation case respectively, first air intake has been seted up on the upper portion of last ventilation case, the lower extreme intercommunication of first air intake has first return bend, the lower part intercommunication of first return bend has the dust pipe, one side of last ventilation case is through first communicating pipe and car body intercommunication, the internal connection of last ventilation case has first supporting block, the upper portion of first supporting block is connected with first slide bar, the both sides of first baffle are connected with first solid fixed ring respectively, first solid fixed ring slides and cup joints on first slide bar.
Preferably, the lower part of the first baffle is connected with a first spring, the lower end of the first spring is connected to the first supporting block, and the lower part of the lower ventilation box is provided with a second air inlet.
Preferably, the upper portion intercommunication of second air intake has the second return bend, one side of lower ventilation case is through second communicating pipe and car body intercommunication.
Preferably, the interior of the lower ventilation box is connected with a second supporting block, the upper portion of the second supporting block is connected with a second sliding rod, and two sides of the second baffle are respectively connected with a second fixing ring.
Preferably, the second fixing ring is sleeved on the second sliding rod in a sliding manner, the lower part of the second baffle is connected with a second spring, and the lower end of the second spring is connected to the second supporting block.
Preferably, the first baffle is arranged between the first communication pipe and the first bend, and the distance between the first baffle and the first communication pipe and the distance between the first baffle and the first bend are both less than 1mm, in particular 0.4-1mm, and especially 0.5-0.8 mm.
Preferably, the second baffle is disposed between the second communicating pipe and the second elbow pipe, and both a distance between the second baffle and the second communicating pipe and a distance between the second baffle and the second elbow pipe are smaller than 1mm, particularly 0.4-1mm, and especially 0.5-0.8 mm.
Preferably, the lower end of the dust collecting pipe is provided with a blocking cover.
Preferably, one sides of the interiors of the upper ventilation box and the lower ventilation box are respectively connected with a sound insulation board.
Preferably, a baffle plate is connected to the inside of the second elbow.
Preferably, the first baffle and the second baffle are both stainless steel plates.
Preferably, the first spring and the second spring are both compression springs, the elastic coefficient of each compression spring is K, and the elastic coefficient K is related to the acceleration a of the elevator; in particular, the larger the value of the acceleration a, the smaller the spring constant K of the compression spring. The acceleration a is 0.45-0.92m/s in consideration of the comfort of riding the elevator and the running speed of the elevator in the high rise2。
Preferably, the volume inside the car body of the elevator is V, which ranges from 4.5 to 8.6 cubic meters; in order to ventilate the cage body and relieve discomfort such as chest distress, dizziness and the like caused by accelerated rising or falling in the cage body of the elevator for a long time, the volume V and the elastic coefficient K in the cage body and the acceleration a of the elevator meet the following relations:
K＝α·(V·a)；
wherein α is the elastic coefficient factor of the spring, and the value range is 0.65-3.75.
Preferably, air filter layers are arranged at the communication positions of the first air inlet and the first bent pipe as well as the communication positions of the second air inlet and the second bent pipe, and the air filter layers are provided with multiple layers; the air filtering layer is formed by sequentially attaching a first filtering layer, a second filtering layer, a third filtering layer, a fourth filtering layer and a fifth filtering layer; the first filter layer and the fifth filter layer are made of the same material, and the second filter layer and the fourth filter layer are made of the same material; thereby the air filter layer is installed and used without dividing the front and the back.
Preferably, the first filter layer is a metal wire mesh layer, and the aperture d1 of the metal wire mesh layer is 1.2-3.6 mm; the second filter layer is a non-woven fabric layer, and the thickness h1 of the non-woven fabric is 1.2-3.2 mm; the third filter layer is a nylon filter layer, the nylon filter layer is a nylon filter screen, and the mesh number N of the nylon filter screen is 30-220. Particularly, in order to further improve the filtering effect, improve the air quality of the elevator car body and improve the comfort, the aperture d1 of the wire mesh layer and the thickness h1 of the non-woven fabric satisfy d 1. h1 is not less than 1.52 and not more than 10.55.
Preferably, in order to further improve the air quality of the elevator car body, and to ventilate the elevator car body to alleviate discomfort such as chest distress and dizziness caused by accelerated ascending or descending in the elevator car body for a long time, the volume V in the elevator car body, the pore diameter d1 of the wire mesh layer, and the thickness h1 of the non-woven fabric satisfy the following relationship with the acceleration a of the elevator:
a·V＝β·(d1+h1)；
wherein β is a balance coefficient, and the value range is 0.41-2.82.
The invention also provides an elevator ventilation method, which comprises the following steps:
s1: and selecting a second spring and a second baffle plate according to the acceleration of the elevator car body in descending, and selecting a first spring and a first baffle plate according to the acceleration of the elevator car in ascending.
S2: and assembling, namely installing the selected second spring and the second baffle plate in the S1 into the lower ventilation box, and installing the selected first spring and the selected first baffle plate into the upper ventilation box.
S3: mounting, namely mounting the upper ventilating box and the lower ventilating box assembled in the S2 on two sides of the car body;
s4: and debugging, namely moving the elevator car up and down, detecting the ventilation condition in the car, and reasonably adjusting the up-and-down motion acceleration of the elevator car.
S5: the operation, after the operation end time, detect, carry out the acceleration of reasonable debugging car body, keep good ventilation effect.
Preferably, when the first spring is selected in S1, the first spring having a suitable length and stiffness coefficient is selected according to the weight of the first flap and the elevator ascending acceleration, and when the second spring is selected, the second spring having a suitable length and stiffness coefficient is selected according to the weight of the second flap and the elevator descending acceleration.
Compared with the prior art, the invention has the technical effects and advantages that:
1. the ventilation device for the elevator ventilation does not need to provide extra energy, and performs ventilation in an accelerated manner when the elevator ascends or descends in an accelerated manner; the elevator keeps a sealed heat preservation state when running at a constant speed or being static, is matched with the existing fan air interchanger for use, and is more energy-saving, higher in air exchanging efficiency and convenient to use.
2. The ventilation device for the ventilation of the elevator is characterized in that the elastic coefficient K of the compression spring is set, and the elastic coefficient K is related to the acceleration a of the elevator; in particular, the larger the value of the acceleration a is, the smaller the spring constant K of the compression spring is, so as to ventilate the car body, thereby alleviating discomfort such as chest distress and dizziness caused by acceleration of the elevator car body during ascending or descending for a long time.
3. The air interchanger for the ventilation of the elevator ensures the air quality of the elevator car body by arranging the air filter layer; the comfort is improved by setting the range and relationship between the aperture d1 of the wire mesh layer and the thickness h1 of the non-woven fabric.
4. The invention provides a ventilation device for elevator ventilation, which further improves the air quality of an elevator car body and ventilates the elevator car body by setting the relation satisfied by the volume V in the elevator car body, the aperture d1 of a wire mesh layer, the thickness h1 of non-woven fabrics and the acceleration a of the elevator, thereby relieving the discomfort of chest distress, dizziness and the like caused by accelerated rising or falling in the elevator car body for a long time.
Drawings
Fig. 1 is a schematic view of a ventilating device for ventilation of an elevator according to the present invention.
Fig. 2 is a side view schematically showing a ventilating device for ventilating an elevator according to the present invention.
Fig. 3 is a schematic view showing an inner structure of an upper ventilation box of a ventilating device for ventilation of an elevator according to the present invention.
Fig. 4 is a schematic view showing an inner structure of a lower ventilation box of a ventilating device for ventilation of an elevator according to the present invention.
Fig. 5 is a side view schematically showing the structure of a first baffle plate of a ventilating device for ventilation of an elevator according to the present invention.
In the figure: 1 car body, 2 lower ventilation case, 3 upper ventilation case, 4 first air intakes, 5 first return bend, 6 dust-collecting tube, 7 first baffle, 8 first connecting pipe, 9 first solid fixed ring, 10 first slide bar, 11 acoustic celotex board, 12 first spring, 13 first supporting block, 14 blanking cover, 15 second return bend, 16 second air intakes, 17 second supporting block, 18 second slide bar, 19 second spring, 20 second communicating pipe, 21 second solid fixed ring, 22 second baffle, 23 baffling board.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. The specific embodiments described herein are merely illustrative of the invention and do not delimit the invention. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
Example 1
As shown in fig. 1 to 5, a ventilating device for ventilation of an elevator, includes a car body 1, a first barrier 7 and a second barrier 22, the two sides of the car body 1 are respectively fixedly connected with an upper ventilating box 3 and a lower ventilating box 2, the upper part of the upper ventilating box 3 is provided with a first air inlet 4, the lower end of the first air inlet 4 is communicated with a first elbow pipe 5, the lower part of the first elbow pipe 5 is communicated with a dust collecting pipe 6, one side of the upper ventilating box 3 is communicated with the cage body 1 through a first communicating pipe 8, a first supporting block 13 is fixedly connected inside the upper ventilating box 3, the upper part of the first supporting block 13 is fixedly connected with a first sliding rod 10, the two sides of the first baffle 7 are respectively and fixedly connected with a first fixing ring 9, the first fixing ring 9 is sleeved on the first sliding rod 10 in a sliding manner, and the lower part of the first baffle 7 is fixedly connected with a first spring 12.
The lower end of the first spring 12 is fixedly connected to the first supporting block 13, a second air inlet 16 is formed in the lower portion of the lower ventilating box 2, the upper portion of the second air inlet 16 is communicated with a second bent pipe 15, one side of the lower ventilating box 2 is communicated with the car body 1 through a second communicating pipe 20, a second supporting block 17 is fixedly connected to the inner portion of the lower ventilating box 2, a second sliding rod 18 is fixedly connected to the upper portion of the second supporting block 17, two sides of a second baffle plate 22 are respectively fixedly connected with second fixing rings 21, the second fixing rings 21 are slidably sleeved on the second sliding rod 18, a second spring 19 is fixedly connected to the lower portion of the second baffle plate 22, and the lower end of the second spring 19 is fixedly connected to the second supporting block 17.
The second baffle 22 is disposed between the second communicating pipe 20 and the second elbow pipe 15, the distance between the second baffle 22 and the second communicating pipe 20 and the distance between the second baffle 22 and the second elbow pipe 15 are both smaller than 1mm, and the second baffle 22 moves up and down under the action of the second spring 19 when the second baffle 22 is weightless or overweight, so that the second elbow pipe 15 is communicated with the second communicating pipe 20, and ventilation is promoted.
The lower end of the dust collecting pipe 6 is provided with a blocking cover 14, and the blocking cover 14 is convenient to open for dust removal. Go up ventilation case 3 and ventilation case 2's inside one side fixedly connected with acoustic celotex board 11 respectively, acoustic celotex board 11 is convenient for noise reduction.
The inside fixedly connected with baffling board 23 of second return bend 15, baffling board 23's effect, under the centrifugal force effect of the interior air current of second return bend 15, can block some dust and get into. The first baffle 7 and the second baffle 22 are both stainless steel plates.
Particularly, the invention also provides an elevator ventilation method, which comprises the following steps:
s1: selecting a second spring and a second baffle plate according to the acceleration of the elevator car body when the elevator car descends, selecting a first spring and a first baffle plate according to the acceleration of the elevator car when the elevator car ascends, selecting a first spring with proper length and stiffness coefficient according to the weight of the first baffle plate and the ascending acceleration of the elevator when the first spring is selected in the S1, and selecting a second spring with proper length and stiffness coefficient according to the weight of the second baffle plate and the descending acceleration of the elevator when the second spring is selected.
S2: and assembling, namely installing the selected second spring and the second baffle plate in the S1 into the lower ventilation box, and installing the selected first spring and the selected first baffle plate into the upper ventilation box.
S3: mounting, namely mounting the upper ventilating box and the lower ventilating box assembled in the S2 on two sides of the car body;
s4: and debugging, namely moving the elevator car up and down, detecting the ventilation condition in the car, and reasonably adjusting the up-and-down motion acceleration of the elevator car.
S5: the operation, after the operation end time, detect, carry out the acceleration of reasonable debugging car body, keep good ventilation effect.
In conclusion, compared with the prior art, the ventilation device for the elevator ventilation, which is provided by the invention, does not need energy, performs ventilation at an accelerated speed when the elevator ascends or descends at an accelerated speed, keeps a sealed and heat-preservation state when the elevator runs at a constant speed or is static, is matched with the existing fan ventilation device for use, and is more energy-saving and higher in ventilation efficiency. The elevator ventilation method provided by the invention can be improved on the existing elevator ventilation device, is wide in applicability and convenient to maintain, and is worthy of popularization and application.
Example 2
A ventilation device for elevator ventilation comprises a car body 1, a first baffle 7 and a second baffle 22, the two sides of the car body 1 are respectively fixedly connected with an upper ventilating box 3 and a lower ventilating box 2, the upper part of the upper ventilating box 3 is provided with a first air inlet 4, the lower end of the first air inlet 4 is communicated with a first elbow pipe 5, the lower part of the first elbow pipe 5 is communicated with a dust collecting pipe 6, one side of the upper ventilating box 3 is communicated with the cage body 1 through a first communicating pipe 8, a first supporting block 13 is fixedly connected inside the upper ventilating box 3, the upper part of the first supporting block 13 is fixedly connected with a first sliding rod 10, the two sides of the first baffle 7 are respectively and fixedly connected with a first fixing ring 9, the first fixing ring 9 is sleeved on the first sliding rod 10 in a sliding manner, and the lower part of the first baffle 7 is fixedly connected with a first spring 12.
The lower end of the first spring 12 is fixedly connected to the first supporting block 13, a second air inlet 16 is formed in the lower portion of the lower ventilating box 2, the upper portion of the second air inlet 16 is communicated with a second bent pipe 15, one side of the lower ventilating box 2 is communicated with the car body 1 through a second communicating pipe 20, a second supporting block 17 is fixedly connected to the inner portion of the lower ventilating box 2, a second sliding rod 18 is fixedly connected to the upper portion of the second supporting block 17, two sides of a second baffle plate 22 are respectively fixedly connected with second fixing rings 21, the second fixing rings 21 are slidably sleeved on the second sliding rod 18, a second spring 19 is fixedly connected to the lower portion of the second baffle plate 22, and the lower end of the second spring 19 is fixedly connected to the second supporting block 17.
The first baffle 7 is arranged between the first communicating pipe 8 and the first bent pipe 5, the distance between the first baffle 7 and the first communicating pipe 8 and the distance between the first baffle 7 and the first bent pipe 5 are 0.4-1mm, and the first baffle 7 can move up and down under the action of the first spring 12 when the first baffle 7 is weightless or overweight, so that the first bent pipe 5 is communicated with the first communicating pipe 8, and ventilation is promoted.
The second baffle 22 is disposed between the second communicating pipe 20 and the second elbow pipe 15, a distance between the second baffle 22 and the second communicating pipe 20 and a distance between the second baffle 22 and the second elbow pipe 15 are 0.4-1mm, and the second baffle 22 moves up and down under the action of the second spring 19 when the second baffle 22 is weightless or overweight, so that the second elbow pipe 15 is communicated with the second communicating pipe 20, and ventilation is promoted.
The lower end of the dust collecting pipe 6 is provided with a blocking cover 14, and the blocking cover 14 is convenient to open for dust removal. Go up ventilation case 3 and ventilation case 2's inside one side fixedly connected with acoustic celotex board 11 respectively, acoustic celotex board 11 is convenient for noise reduction.
The inside fixedly connected with baffling board 23 of second return bend 15, baffling board 23's effect, under the centrifugal force effect of the interior air current of second return bend 15, can block some dust and get into. The first baffle 7 and the second baffle 22 are both stainless steel plates.
The first spring and the second spring are both compression springs, the elastic coefficient of each compression spring is K, and the elastic coefficient K is related to the acceleration a of the elevator; in particular, the larger the value of the acceleration a, the smaller the spring constant K of the compression spring. The acceleration a is 0.45-0.92m/s in consideration of the comfort of riding the elevator and the running speed of the elevator in the high rise2。
The volume in the car body of the elevator is V, and the range of the volume is 4.5-8.6 cubic meters; in order to ventilate the cage body and relieve discomfort such as chest distress, dizziness and the like caused by accelerated rising or falling in the cage body of the elevator for a long time, the volume V and the elastic coefficient K in the cage body and the acceleration a of the elevator meet the following relations:
K＝α·(V·a)；
wherein α is the elastic coefficient factor of the spring, and the value range is 0.65-3.75.
Example 3
A ventilation device for elevator ventilation comprises a car body 1, a first baffle 7 and a second baffle 22, the two sides of the car body 1 are respectively fixedly connected with an upper ventilating box 3 and a lower ventilating box 2, the upper part of the upper ventilating box 3 is provided with a first air inlet 4, the lower end of the first air inlet 4 is communicated with a first elbow pipe 5, the lower part of the first elbow pipe 5 is communicated with a dust collecting pipe 6, one side of the upper ventilating box 3 is communicated with the cage body 1 through a first communicating pipe 8, a first supporting block 13 is fixedly connected inside the upper ventilating box 3, the upper part of the first supporting block 13 is fixedly connected with a first sliding rod 10, the two sides of the first baffle 7 are respectively and fixedly connected with a first fixing ring 9, the first fixing ring 9 is sleeved on the first sliding rod 10 in a sliding manner, and the lower part of the first baffle 7 is fixedly connected with a first spring 12.
The lower end of the first spring 12 is fixedly connected to the first supporting block 13, a second air inlet 16 is formed in the lower portion of the lower ventilating box 2, the upper portion of the second air inlet 16 is communicated with a second bent pipe 15, one side of the lower ventilating box 2 is communicated with the car body 1 through a second communicating pipe 20, a second supporting block 17 is fixedly connected to the inner portion of the lower ventilating box 2, a second sliding rod 18 is fixedly connected to the upper portion of the second supporting block 17, two sides of a second baffle plate 22 are respectively fixedly connected with second fixing rings 21, the second fixing rings 21 are slidably sleeved on the second sliding rod 18, a second spring 19 is fixedly connected to the lower portion of the second baffle plate 22, and the lower end of the second spring 19 is fixedly connected to the second supporting block 17.
The first baffle 7 is arranged between the first communicating pipe 8 and the first bent pipe 5, the distance between the first baffle 7 and the first communicating pipe 8 and the distance between the first baffle 7 and the first bent pipe 5 are 0.5-0.8mm, and the first baffle 7 can move up and down under the action of the first spring 12 when the first baffle 7 is weightless or overweight, so that the first bent pipe 5 is communicated with the first communicating pipe 8 to promote ventilation.
The second baffle 22 is disposed between the second communicating pipe 20 and the second bent pipe 15, a distance between the second baffle 22 and the second communicating pipe 20 and a distance between the second baffle 22 and the second bent pipe 15 are 0.5-0.8mm, and the second baffle 22 moves up and down under the action of the second spring 19 when the second baffle 22 is weightless or overweight, so that the second bent pipe 15 is communicated with the second communicating pipe 20, and ventilation is promoted.
The lower end of the dust collecting pipe 6 is provided with a blocking cover 14, and the blocking cover 14 is convenient to open for dust removal. Go up ventilation case 3 and ventilation case 2's inside one side fixedly connected with acoustic celotex board 11 respectively, acoustic celotex board 11 is convenient for noise reduction.
The inside fixedly connected with baffling board 23 of second return bend 15, baffling board 23's effect, under the centrifugal force effect of the interior air current of second return bend 15, can block some dust and get into. The first baffle 7 and the second baffle 22 are both stainless steel plates.
The first spring and the second spring are both compression springs, the elastic coefficient of each compression spring is K, and the elastic coefficient K is related to the acceleration a of the elevator; in particular, the larger the value of the acceleration a, the smaller the spring constant K of the compression spring. The acceleration a is 0.45-0.92m/s in consideration of the comfort of riding the elevator and the running speed of the elevator in the high rise2。
The volume in the car body of the elevator is V, and the range of the volume is 4.5-8.6 cubic meters; in order to ventilate the cage body and relieve discomfort such as chest distress, dizziness and the like caused by accelerated rising or falling in the cage body of the elevator for a long time, the volume V and the elastic coefficient K in the cage body and the acceleration a of the elevator meet the following relations:
K＝α·(V·a)；
wherein α is the elastic coefficient factor of the spring, and the value range is 0.65-3.75.
Air filter layers are arranged at the communication positions of the first air inlet and the first bent pipe as well as the communication positions of the second air inlet and the second bent pipe, and the air filter layers are provided with a plurality of layers; the air filtering layer is formed by sequentially attaching a first filtering layer, a second filtering layer, a third filtering layer, a fourth filtering layer and a fifth filtering layer; the first filter layer and the fifth filter layer are made of the same material, and the second filter layer and the fourth filter layer are made of the same material; thereby the air filter layer is installed and used without dividing the front and the back.
The first filter layer is a metal wire mesh layer, and the aperture d1 of the metal wire mesh layer is 1.2-3.6 mm; the second filter layer is a non-woven fabric layer, and the thickness h1 of the non-woven fabric is 1.2-3.2 mm; the third filter layer is a nylon filter layer, the nylon filter layer is a nylon filter screen, and the mesh number N of the nylon filter screen is 30-220. Particularly, in order to further improve the filtering effect, improve the air quality of the elevator car body and improve the comfort, the aperture d1 of the wire mesh layer and the thickness h1 of the non-woven fabric satisfy d 1. h1 is not less than 1.52 and not more than 10.55.
In order to further improve the air quality of the elevator car body, ventilate the car body, relieve discomfort such as chest distress, dizziness and the like caused by accelerated rising or descending for a long time in the car body of the elevator, the volume V in the car body, the aperture d1 of the wire mesh layer, the thickness h1 of the non-woven fabric and the acceleration a of the elevator satisfy the following relations:
a·V＝β·(d1+h1)；
wherein β is a balance coefficient, and the value range is 0.41-2.82.
Finally, it should be noted that: although the present invention has been described in detail with reference to the foregoing embodiments, it will be apparent to those skilled in the art that modifications may be made to the embodiments or portions thereof without departing from the spirit and scope of the invention.
Claims (7)
1. A breather for elevator ventilation, includes car body (1), first baffle (7) and second baffle (22), its characterized in that: the utility model discloses a car ventilation structure, including car body (1), first return bend (5), dust-collecting tube (6), first communicating pipe (8) and car body (1) intercommunication are passed through to one side of last ventilation case (3), the internal connection of last ventilation case (3) has first supporting block (13), the upper portion of first supporting block (13) is connected with first slide bar (10), the both sides of first baffle (7) are connected with first solid fixed ring (9) respectively, first solid fixed ring (9) slip cup joint on first slide bar (10).
2. A ventilating device for ventilation of an elevator according to claim 1, characterized in that: the lower part of the first baffle (7) is connected with a first spring (12), the lower end of the first spring (12) is connected to a first supporting block (13), and a second air inlet (16) is formed in the lower part of the lower ventilation box (2).
3. A ventilating device for ventilation of an elevator according to claims 1-2, characterized in that: the upper portion intercommunication of second air intake (16) has second return bend (15), one side of lower ventilation case (2) is through second communicating pipe (20) and car body (1) intercommunication.
4. A ventilating device for ventilation of an elevator according to claim 1, characterized in that: the interior of the lower ventilation box (2) is connected with a second supporting block (17), the upper portion of the second supporting block (17) is connected with a second sliding rod (18), and two sides of the second baffle (22) are respectively connected with second fixing rings (21).
5. A ventilating device for ventilation of an elevator according to claim 1, characterized in that: first baffle (7) set up between first communicating pipe (8) and first return bend (5), interval and the interval between first baffle (7) and first return bend (5) between first baffle (7) and first communicating pipe (8) all are less than 1 mm.
6. A ventilating device for ventilation of an elevator according to claim 1, characterized in that: the second baffle (22) is arranged between the second communicating pipe (20) and the second bent pipe (15), and the distance between the second baffle (22) and the second communicating pipe (20) and the distance between the second baffle (22) and the second bent pipe (15) are both smaller than 1 mm.
7. A ventilating device for ventilation of an elevator according to claim 1, characterized in that: the lower end of the dust collecting pipe (6) is provided with a plug cover (14).
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN112460722A (en) * | 2020-12-08 | 2021-03-09 | 湖北惠天下建工科技股份有限公司 | A high-efficient ventilation system for elevator |
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| CN111332909B (en) | 2021-06-22 |
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