CN113063195B - Elevator car ventilation device - Google Patents

Elevator car ventilation device Download PDF

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Publication number
CN113063195B
CN113063195B CN202110244594.0A CN202110244594A CN113063195B CN 113063195 B CN113063195 B CN 113063195B CN 202110244594 A CN202110244594 A CN 202110244594A CN 113063195 B CN113063195 B CN 113063195B
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China
Prior art keywords
car
fan
air
elevator
air curtain
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CN202110244594.0A
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CN113063195A (en
Inventor
朱晨
杨炜皓
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Shanghai Mitsubishi Elevator Co Ltd
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Shanghai Mitsubishi Elevator Co Ltd
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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
    • F24F7/007—Ventilation with forced flow
    • 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
    • B66B5/00—Applications of checking, fault-correcting, or safety devices in elevators
    • B66B5/02—Applications of checking, fault-correcting, or safety devices in elevators responsive to abnormal operating conditions
    • B66B5/021—Applications of checking, fault-correcting, or safety devices in elevators responsive to abnormal operating conditions the abnormal operating conditions being independent of the system
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24—HEATING; RANGES; VENTILATING
    • F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
    • F24F11/00—Control or safety arrangements
    • F24F11/70—Control systems characterised by their outputs; Constructional details thereof
    • F24F11/72—Control systems characterised by their outputs; Constructional details thereof for controlling the supply of treated air, e.g. its pressure
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24—HEATING; RANGES; VENTILATING
    • F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
    • F24F9/00—Use of air currents for screening, e.g. air curtains
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24—HEATING; RANGES; VENTILATING
    • F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
    • F24F2110/00—Control inputs relating to air properties
    • F24F2110/10—Temperature
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24—HEATING; RANGES; VENTILATING
    • F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
    • F24F2110/00—Control inputs relating to air properties
    • F24F2110/50—Air quality properties
    • F24F2110/65—Concentration of specific substances or contaminants
    • F24F2110/76—Oxygen
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02B—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO BUILDINGS, e.g. HOUSING, HOUSE APPLIANCES OR RELATED END-USER APPLICATIONS
    • Y02B30/00—Energy efficient heating, ventilation or air conditioning [HVAC]
    • Y02B30/70—Efficient control or regulation technologies, e.g. for control of refrigerant flow, motor or heating

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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)
  • Elevator Control (AREA)

Abstract

The invention discloses an elevator car ventilation device, which comprises an induction device, an air curtain device, a control circuit and at least 2 fans, wherein the induction device is connected with the air curtain device; the control circuit is in signal connection with the induction device, the air curtain device and each fan respectively; the front part of the car is provided with at least one fan communicated with the inside and the outside of the car, and the rear part of the car is provided with at least one fan communicated with the inside and the outside of the car; the air curtain device is used for isolating the air at the front part of the car and the air at the rear part of the car; the sensing device is used for detecting whether an automobile exhaust port is arranged in the lift car or whether the automobile exhaust port is positioned in the front part of the lift car or in the rear part of the lift car; the control circuit controls the air curtain device and the fan to work according to whether the automobile exhaust port is arranged in the car or not or the automobile exhaust port is arranged at the front part or the rear part of the car detected by the sensing device. The elevator car ventilation device is reasonable in layout and good in exhaust effect, and can obviously improve the quality of air in the car.

Description

Elevator car ventilation device
Technical Field
The invention relates to the technical field of automobile elevators, in particular to an elevator car ventilation device.
Background
At present, the application range of the elevator is wider and wider, and people can push the continuous innovation of the structural design of the elevator in all aspects according to various requirements on riding comfort.
In recent years, with the concern of people about the surrounding living environment, there have been increasing demands and products for sterilization and deodorization in elevator cars. The filtration method is undoubtedly the most effective and convenient method, but is limited by the installation space of the car roof and higher maintenance cost of consumables, so that corresponding actual products and applications are fewer. The purification device and the ventilation device with the ion generator are installed in the elevator, so that the elevator counter-measures well, has the characteristics of small size, flexibility, no material consumption, long service life and low maintenance cost.
Under the background of the increasing scale of modern cities, the automobile elevator serving for the passenger automobile has wide development prospect. The motor elevator is called a non-commercial vehicle elevator in GB7024-2008 "elevator, escalator, moving walkway terminology", and is defined as an elevator whose car is suitable for carrying a small passenger car, and belongs to one of the freight elevators in the category of special equipment. The system is more and more widely applied to 4S shops of automobiles, maintenance workshops and superstores with parking lots arranged on roofs. The automobile elevator is a special elevator for solving the problem of vertical transportation of automobiles, and as an important automobile vertical transportation tool, compared with the traditional automobile ramp, the automobile elevator can save 80% of building area and more than twice of automobile turnover efficiency.
The conventional ventilation device of the car elevator is generally positioned on the car roof and adopts an inward blowing mode. Different from a passenger elevator, the automobile elevator can generate poisonous and harmful tail gas in the operation process, the tail gas can not be timely discharged out of the lift car by adopting the traditional inward blowing mode, the air exchange is mainly realized when the door is opened in a floor stopping mode, and the harm of harmful gas to people is still large in the operation process.
Disclosure of Invention
The invention aims to provide an elevator car ventilation device which is reasonable in layout, good in exhaust effect and capable of obviously improving the air quality in a car.
In order to solve the technical problem, the elevator car ventilation device provided by the invention comprises an induction device 3, an air curtain device 7, a control circuit and at least 2 fans;
the control circuit is in signal connection with the induction device 3, the air curtain device 7 and each fan respectively;
the front part of the car is provided with at least one fan communicated with the inside and the outside of the car, and the rear part of the car is provided with at least one fan communicated with the inside and the outside of the car;
the air curtain device 7 is used for isolating the air at the front part of the car and the air at the rear part of the car;
the sensing device 3 is used for detecting whether an automobile exhaust port is arranged in the car or whether the automobile exhaust port is positioned in the front of the car or in the back of the car;
and the control circuit controls the air curtain device 7 and the fan to work according to whether an automobile tail gas port or an automobile tail gas port is arranged at the front part of the car or at the rear part of the car in the car detected by the sensing device 3.
Preferably, the elevator car ventilation device comprises two fans, namely a first fan 1 and a second fan 2;
a first fan 1 communicated with the inside and the outside of the lift car is arranged at the front part of the lift car, and a second fan 2 communicated with the inside and the outside of the lift car is arranged at the rear part of the lift car;
when the induction device 3 detects that the air port of the automobile is positioned at the front part of the car, the control circuit controls the air curtain device 7 to work to isolate the air at the front part of the car and the air at the rear part of the car, and controls the first fan 1 to work to exhaust the air outside the car;
when the induction device 3 detects that the air port of the automobile tail gas is positioned at the back part of the car, the air curtain device 7 is controlled to work to isolate the air between the front part of the car and the back part of the car, and the second fan 2 is controlled to work to exhaust the air outside the car.
Preferably, when the induction device 3 detects that the air port of the automobile is positioned at the front part of the car, the control circuit controls the air curtain device 7 to work to isolate air between the front part of the car and the rear part of the car, controls the first fan 1 to work to exhaust air outside the car, and controls the second fan 2 to work to blow air into the car;
when the induction device 3 detects that the air port of the automobile is positioned at the rear part of the car, the air curtain device 7 is controlled to work to isolate the air between the front part of the car and the rear part of the car, the second fan 2 is controlled to work to exhaust the air outside the car, and the first fan 1 is controlled to work to blow the air into the car.
Preferably, the elevator car ventilation device comprises four fans, namely a first fan 1, a second fan 2, a third fan 8 and a fourth fan 9;
a top plate 4 at the front part of the lift car is provided with a first fan 1 communicated with the inside and the outside of the lift car, a top plate 4 at the rear part of the lift car is provided with a second fan 2 communicated with the inside and the outside of the lift car, a bottom plate 6 at the front part of the lift car is provided with a third fan 8 communicated with the inside and the outside of the lift car, and a bottom plate 6 at the rear part of the lift car is provided with a fourth fan 9 communicated with the inside and the outside of the lift car;
when the elevator runs downwards, the control circuit controls the air curtain device 7 to work and isolate the air at the front part of the elevator car and the rear part of the elevator car when the sensing device 3 detects that an automobile exhaust port is formed in the elevator car, controls the first fan 1 and the second fan 2 to work and exhaust the air to the outside of the elevator car, and controls the third fan 8 and the fourth fan 9 to work and blow air to the inside of the elevator car; when the elevator moves upwards, when the sensing device 3 detects that an automobile tail gas port is formed in the car, the air curtain device 7 is controlled to work to isolate the air at the front part of the car and the rear part of the car, the third fan 8 and the fourth fan 9 are controlled to work to exhaust the air outside the car, and the first fan 1 and the second fan 2 are controlled to work to blow air into the car.
Preferably, when the elevator is running downwards or upwards, when the sensing device 3 detects that an automobile exhaust port is formed in the car, the control circuit controls the first fan 1, the second fan 2, the third fan 8 and the fourth fan 9 to operate at a speed lower than the rated rotating speed of the fans.
Preferably, when the sensing means 3 detects the presence of a car air outlet in the car, the control circuit controls the centrifugal wind turbine 72 of the air curtain means 7 to operate at a speed lower than its rated speed when the elevator is running downwards or upwards.
Preferably, the control circuit controls the closing of the fans and the air curtain device 7 when the elevator stops running.
Preferably, when the elevator runs and the sensing device does not detect that an automobile tail gas port is arranged in the car, the control circuit controls the air curtain device 7 to be closed and controls the first fan 1 and the second fan 2 to work and blow air into the car.
Preferably, when the car door is opened and the sensing device does not detect that an automobile exhaust port is arranged in the car, the control circuit controls the air curtain device 7 to be closed and controls the fans to blow air into the car, so that the exchange of the air inside and outside the car is realized.
Preferably, the sensing device 3 detects the position of the exhaust port of the automobile through an infrared thermal sensing detector.
Preferably, the infrared thermal sensing detector is arranged on the upper part of the car close to the car door side.
Preferably, the sensing device 3 adopts two front and back detecting heads;
the front detection head is arranged on the car wall 5 at the front side of the car;
the rear detecting head is arranged on the car wall 5 on the side surface of the rear part of the car;
the front and the rear detecting heads adopt an oxygen sensor, a temperature sensor or a nitrogen oxide sensor.
Preferably, the air curtain device 7 comprises a C-shaped square pipe 71 and a centrifugal wind turbine 72;
an air curtain hole array is formed on the top plate and the side car wall 5 at the middle position in the front-back direction of the car;
the opening side of the C-shaped square pipe 71 is hermetically buckled to the outer side of the car corresponding to the air curtain hole array;
the centrifugal wind turbine 72 is arranged on a C-shaped square pipe 71 on the outer side of the car roof;
when the centrifugal wind turbine 72 is started, the inside of the whole C-shaped square tube is filled with high-pressure gas and blows into the car through the air curtain hole arrays of the car top plate 4 and the side car wall 5 to form an air curtain.
Preferably, said air curtain device 7 comprises 2 centrifugal wind turbines 72;
two centrifugal wind turbines 72 are mounted on the left and right portions of the C-shaped square pipe 71 on the outer side of the car roof, respectively.
According to the elevator car ventilation device, each fan is provided with the air outlet/air inlet, air blowing and air exhausting can be achieved through forward rotation and reverse rotation, the air curtain device 7 and each fan are managed and operated in a unified mode through the control circuit, the control circuit controls the air curtain device 7 and each fan to work according to the detection result of the induction device 3, the rotation directions of the two fans are matched with the work of the air curtain device 7, the ventilation efficiency can be improved, the layout is reasonable, and the air exhausting effect is good. This elevator car breather is applied to car elevator, can effectively discharge the tail gas that produces after the car gets into the car, prevents that the car from getting into the car after the exhaust tail gas cause the injury to the passenger, has obviously improved the interior air quality of car.
Drawings
In order to more clearly illustrate the technical solution of the present invention, the drawings required for the present invention are briefly introduced below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and it is obvious for those skilled in the art that other drawings can be obtained according to the drawings without creative efforts.
Fig. 1 is a perspective view of an embodiment of an elevator car ventilation device of the present invention;
fig. 2 is a cross-sectional view of an embodiment of the ventilation apparatus for an elevator car of the present invention;
fig. 3 is a gas flow diagram of an embodiment of the elevator car ventilation apparatus of the present invention;
fig. 4 is a gas flow diagram of an elevator in a downward direction according to another embodiment of the ventilation apparatus for an elevator car of the present invention;
fig. 5 is a gas flow diagram of an elevator in an upward direction in another embodiment of the elevator car ventilation apparatus of the present invention.
The reference numbers in the figures illustrate that:
3, a sensing device; 7 an air curtain device; 71C type square tubes; 72 centrifugal wind turbine; 1 a first fan; 2 a second fan; 8 a third fan; 9 a fourth fan; 4, a top plate; 6, a bottom plate; 5 side walls.
Detailed Description
The technical solutions in the present invention will be described clearly and completely with reference to the accompanying drawings, and it is obvious that the described embodiments are some, but not all embodiments of the present 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 one
As shown in fig. 1 to 5, the elevator car ventilation device includes a sensing device 3, an air curtain device 7, a control circuit and at least 2 fans;
the control circuit is in signal connection with the induction device 3, the air curtain device 7 and each fan respectively;
the front part of the car is provided with at least one fan communicated with the inside and the outside of the car, and the rear part of the car is provided with at least one fan communicated with the inside and the outside of the car;
the air curtain device 7 is used for isolating the air at the front part of the lift car and the air at the rear part of the lift car and avoiding the exchange of the air at the front part of the lift car and the air at the rear part of the lift car;
the sensing device 3 is used for detecting whether an automobile exhaust port is arranged in the lift car or not and whether the automobile exhaust port is positioned in the front of the lift car or in the rear of the lift car;
the control circuit controls the air curtain device 7 and the fan to work according to whether an automobile tail gas port or an automobile tail gas port is arranged at the front part or the rear part of the car in the car detected by the sensing device 3.
According to the elevator car air interchanger, each fan is provided with the air outlet/air inlet and can rotate forwards and backwards to blow and exhaust air, the air curtain device 7 and each fan are managed and operated in a unified mode through the control circuit, the control circuit controls the air curtain device 7 and each fan to work according to the detection result of the sensing device 3, the air exchange efficiency can be improved through the working cooperation of the rotation directions of the two fans and the air curtain device 7, the layout is reasonable, and the exhaust effect is good. This elevator car breather is applied to car elevator, can effectively discharge the tail gas that produces after the car gets into the car, prevents that the car from getting into the car after the exhaust tail gas cause the injury to the passenger, has obviously improved the interior air quality of car.
Example two
According to the first embodiment, as shown in fig. 1, 2 and 3, the elevator car ventilation device includes two fans, namely a first fan 1 and a second fan 2;
the front part of the lift car is provided with a first fan 1 communicated with the inside and the outside of the lift car, and the rear part of the lift car is provided with a second fan 2 communicated with the inside and the outside of the lift car;
when the induction device 3 detects that the air port of the automobile is positioned at the front part of the car, the control circuit controls the air curtain device 7 to work to isolate the air at the front part of the car and the air at the rear part of the car, and controls the first fan 1 to work to exhaust the air outside the car;
when the induction device 3 detects that the air port of the automobile tail gas is positioned at the back part of the car, the air curtain device 7 is controlled to work to isolate the air between the front part of the car and the back part of the car, and the second fan 2 is controlled to work to exhaust the air outside the car.
Preferably, when the induction device 3 detects that the air port of the automobile is positioned at the front part of the car, the control circuit controls the air curtain device 7 to work to isolate air between the front part of the car and the rear part of the car, controls the first fan 1 to work to exhaust air to the outside of the car, and controls the second fan 2 to work to blow air to the inside of the car; when the induction device 3 detects that the air port of the automobile tail is positioned at the back part of the car, the air curtain device 7 is controlled to work to isolate air between the front part of the car and the back part of the car, the second fan 2 is controlled to work to exhaust air outside the car, and the first fan 1 is controlled to work to blow air into the car.
In the second elevator car ventilation device of the embodiment, the control circuit controls the first fan 1 motor and the second fan 2 fan motor to rotate forwards and backwards according to the position of the automobile exhaust port, so that harmful gas in the car is exhausted, and fresh air is blown into the car. When the front face of the automobile enters the car, the sensing device can detect that the air port of the automobile is positioned at the front part (the side of a car door) of the car, the first fan 1 works to exhaust air to the outside of the car, and the second fan 2 works to blow air to the inside of the car to introduce fresh air; when the automobile backs a car and enters the car, the sensing device can detect that the air port of the automobile is positioned at the rear part of the car (the side of the wall of the back car), the first fan 1 blows air into the car when working, fresh air is led in, and the second fan 2 exhausts air outside the car when working.
EXAMPLE III
As shown in fig. 4 and 5, the elevator car ventilation device includes four fans, i.e., a first fan 1, a second fan 2, a third fan 8, and a fourth fan 9;
a top plate 4 at the front part of the lift car is provided with a first fan 1 communicated with the inside and the outside of the lift car, a top plate 4 at the rear part of the lift car is provided with a second fan 2 communicated with the inside and the outside of the lift car, a bottom plate 6 at the front part of the lift car is provided with a third fan 8 communicated with the inside and the outside of the lift car, and a bottom plate 6 at the rear part of the lift car is provided with a fourth fan 9 communicated with the inside and the outside of the lift car;
when the elevator runs downwards, the control circuit controls the air curtain device 7 to work and isolate the air at the front part of the car and the rear part of the car when the sensing device 3 detects that the car is provided with an automobile exhaust port, controls the first fan 1 and the second fan 2 to work and exhaust the air outside the car, and controls the third fan 8 and the fourth fan 9 to work and blow air into the car as shown in figure 4; when the elevator moves upwards, when the sensing device 3 detects that an automobile tail gas port is formed in the car, the air curtain device 7 is controlled to work to isolate the air at the front part of the car and the rear part of the car, the third fan 8 and the fourth fan 9 are controlled to work to exhaust the air outside the car, and the first fan 1 and the second fan 2 are controlled to work to blow air into the car, as shown in fig. 5.
Preferably, when the sensing device 3 detects that there is an automobile exhaust port in the car during the downward operation or the upward operation of the elevator, the control circuit controls the first fan 1, the second fan 2, the third fan 8 and the fourth fan 9 to operate at a speed lower than the rated rotation speed thereof (e.g., at a speed of 50% to 80% of the rated rotation speed thereof).
Preferably, when the sensing device 3 detects that there is a car air outlet in the car when the elevator is running downwards or upwards, the control circuit controls the centrifugal wind turbine 72 of the air curtain device 7 to operate at a speed lower than its rated rotation speed (for example, at a speed of 50% to 80% of its rated rotation speed).
The elevator car ventilation device of the third embodiment controls the fan to work according to the running direction of the elevator. When the elevator runs downwards, air on the lower side of the bottom plate of the car is extruded, the air pressure is increased, the air pressure on the upper side of the top plate 4 of the car is reduced, and the air can automatically flow to a low air pressure position from a high air pressure position; when the elevator moves upwards, the air on the upper side of the car top plate 4 is extruded, the air pressure is increased, the air pressure on the lower side of the car bottom plate 6 is reduced, and the working principle is consistent with that when the elevator moves downwards. The elevator car ventilation device of the fourth embodiment considers the running direction of the elevator as an influence factor, and not only can prevent the gas exhausted from the car from entering the car again by controlling the forward rotation and the reverse rotation of the fan, but also can control the exhaust blowing state of the ventilation fan, the rotating speed of the ventilation fan and the rotating speed of the centrifugal wind turbine 72 of the wind curtain device 7 by controlling the air flowing direction to be opposite to the moving direction of the car and utilizing the air pressure difference between the car bottom and the car top when the elevator runs upwards or downwards, so that the air convection is easily realized by means of the spontaneous flow of air, the harmful gas is rapidly exhausted from the car, the power consumption is reduced, the ventilation efficiency is improved, and the energy-saving effect is realized while the efficient ventilation is realized. Moreover, because the air flow direction is opposite to the running direction of the elevator, the situation that harmful gas flows back to enter the elevator car again can not occur.
Example four
Based on the elevator car ventilation device of the first embodiment, when the elevator stops running, the control circuit controls to close the fans and the air curtain device 7, so that energy is saved.
EXAMPLE five
Based on the elevator car ventilation device of the second or third embodiment, when the elevator runs and the sensing device does not detect that there is an automobile exhaust port in the car, the control circuit controls to close the air curtain device 7 and controls the first fan 1 and the second fan 2 to work and blow air into the car.
The elevator car ventilation device of the fifth embodiment realizes car ventilation and ventilation in a general case, similar to the case of passenger elevator operation.
EXAMPLE six
Based on elevator car breather of embodiment two or three, open as the sedan-chair door, and induction system does not detect to have car tail gas mouth in the car, control circuit control closes air curtain device 7, and the air intercommunication at car front portion with the car rear portion to control each fan and all blow to in the car, realize the exchange of the inside and outside air of car.
EXAMPLE seven
Based on the elevator car breather of embodiment one, induction system 3 detects the position of car gas port through infrared ray thermal sensing detector.
Preferably, the infrared thermal sensing detector is arranged on the upper part of the lift car close to the side of the lift car door, and the position of the automobile exhaust port is detected by utilizing the infrared thermal sensing principle.
Example eight
Based on the elevator car ventilation device of the first embodiment, the sensing device 3 adopts a front detection head and a rear detection head;
the front detection head is arranged on the car wall 5 on the side surface of the front part of the car;
the rear detecting head is arranged on the car wall 5 on the side surface of the rear part of the car;
the front and back probes are all oxygen sensors, temperature sensors or nitrogen oxide (NOx) sensors.
Example nine
Based on the elevator car ventilation device of the first embodiment, the air curtain device 7 comprises a C-shaped square pipe 71 and a centrifugal wind turbine 72;
an air curtain hole array is formed on the top plate and the side car wall 5 at the middle position in the front-back direction of the car;
the opening side of the C-shaped square pipe 71 is hermetically buckled to the outer side of the car corresponding to the air curtain hole array;
the centrifugal wind turbine 72 is arranged on a C-shaped square pipe 71 on the outer side of the car roof;
when the centrifugal wind turbine 72 is opened, the inside of the whole C-shaped square tube is filled with high-pressure gas and blown into the lift car through the air curtain hole arrays of the top plate 4 of the lift car and the side wall 5 of the lift car to form an air curtain.
Preferably, said air curtain means 7 comprise 2 centrifugal wind turbines 72;
two centrifugal wind turbines 72 are mounted on the left and right portions of the C-shaped square pipe 71 on the outer side of the car roof, respectively.
Ninth embodiment's elevator car breather, air curtain device 7 is installed to the front and back intermediate position department of car, drives the powerful air current that centrifugal wind turbine produced through high-speed motor, forms the air curtain of keeping apart the car front portion with car rear portion gas, and the gas circulation at the isolated car front portion with car rear portion avoids harmful gas to flow back and causes the injury to the passenger.
The above description is only for the purpose of illustrating the preferred embodiments of the present invention and is not to be construed as limiting the invention, and any modifications, equivalents, improvements and the like made within the spirit and principle of the present invention should be included in the scope of the present invention.

Claims (21)

1. An elevator car ventilation device is characterized by comprising a sensing device (3), an air curtain device (7), a control circuit, a first fan (1) and a second fan (2);
the control circuit is in signal connection with the induction device (3), the air curtain device (7) and each fan respectively;
the air curtain device (7) is used for isolating the air at the front part of the car and the air at the rear part of the car;
the sensing device (3) is used for detecting whether an automobile exhaust port is arranged in the car or whether the automobile exhaust port is positioned in the front of the car or in the back of the car;
a first fan (1) communicated with the inside and the outside of the lift car is arranged at the front part of the lift car, and a second fan (2) communicated with the inside and the outside of the lift car is arranged at the rear part of the lift car;
when the induction device (3) detects that the air port of the automobile is positioned at the front part of the car, the control circuit controls the air curtain device (7) to work to isolate the air at the front part of the car and the air at the rear part of the car, and controls the first fan (1) to work to exhaust the air outside the car;
when the induction device (3) detects that the air port of the automobile is positioned at the rear part of the car, the air curtain device (7) is controlled to work to isolate air between the front part of the car and the rear part of the car, and the second fan (2) is controlled to work to exhaust air outside the car.
2. The elevator car ventilation device of claim 1,
when the induction device (3) detects that the air port of the automobile is positioned at the front part of the car, the control circuit controls the air curtain device (7) to work to isolate air between the front part of the car and the rear part of the car, controls the first fan (1) to work to exhaust air outside the car, and controls the second fan (2) to work to blow air into the car;
when the induction device (3) detects that the air port of the automobile is positioned at the rear part of the car, the air curtain device (7) is controlled to work to isolate air between the front part of the car and the rear part of the car, the second fan (2) is controlled to work to exhaust air outside the car, and the first fan (1) is controlled to work to blow air into the car.
3. The elevator car ventilation device of claim 1,
when the elevator stops running, the control circuit controls the fans and the air curtain device (7) to be closed.
4. The elevator car ventilation device of claim 1,
when the elevator operates and the sensing device does not detect that an automobile tail gas port exists in the lift car, the control circuit controls the air curtain device (7) to be closed and controls the first fan (1) and the second fan (2) to work to blow air into the lift car.
5. The elevator car ventilation device of claim 1,
when the car door is opened, and the sensing device does not detect that an automobile tail gas port exists in the car, the control circuit controls the air curtain device (7) to be closed, and each fan is controlled to blow air into the car, so that the exchange of the air inside and outside the car is realized.
6. The elevator car ventilation device of claim 1,
the sensing device (3) detects the position of the automobile exhaust port through an infrared thermal sensing detector.
7. The elevator car ventilation device of claim 6,
the infrared thermal sensing detector is arranged on the upper part of the lift car close to the side of the lift car door.
8. The elevator car ventilation device of claim 1,
the induction device (3) adopts a front probe and a rear probe;
the front detection head is arranged on the car wall (5) on the side surface of the front part of the car;
the rear detecting head is arranged on the car wall (5) at the side surface of the rear part of the car;
the front and the rear detecting heads adopt an oxygen sensor, a temperature sensor or a nitrogen oxide sensor.
9. The elevator car ventilation device of claim 1,
the air curtain device (7) comprises a C-shaped square pipe (71) and a centrifugal wind turbine (72);
an air curtain hole array is formed on a top plate and a side car wall (5) in the middle position of the car in the front-back direction;
the opening side of the C-shaped square pipe (71) is buckled to the outer side of the car in a sealing mode corresponding to the air curtain hole array;
the centrifugal wind turbine (72) is arranged on a C-shaped square pipe (71) on the outer side of the car roof;
when the centrifugal wind turbine (72) is started, the whole C-shaped square tube (71) is filled with high-pressure gas and blows into the car through the air curtain hole arrays of the car top plate (4) and the side car wall (5) to form an air curtain.
10. The elevator car ventilation device of claim 9,
said air curtain device (7) comprises 2 centrifugal wind turbines (72);
two centrifugal wind turbines (72) are respectively arranged on the left part and the right part of a C-shaped square pipe (71) on the outer side of the car roof.
11. An elevator car ventilation device is characterized by comprising a sensing device (3), an air curtain device (7), a control circuit, a first fan (1), a second fan (2), a third fan (8) and a fourth fan (9);
the control circuit is in signal connection with the induction device (3), the air curtain device (7) and each fan respectively;
the air curtain device (7) is used for isolating the air at the front part of the car and the air at the rear part of the car;
the sensing device (3) is used for detecting whether an automobile exhaust port is arranged in the car or whether the automobile exhaust port is positioned in the front of the car or in the back of the car;
a top plate (4) at the front part of the lift car is provided with a first fan (1) communicated with the inside and the outside of the lift car, a top plate (4) at the rear part of the lift car is provided with a second fan (2) communicated with the inside and the outside of the lift car, a bottom plate (6) at the front part of the lift car is provided with a third fan (8) communicated with the inside and the outside of the lift car, and a bottom plate (6) at the rear part of the lift car is provided with a fourth fan (9) communicated with the inside and the outside of the lift car;
when the elevator runs downwards, the control circuit controls the air curtain device (7) to work and isolate the air at the front part of the car and the rear part of the car when the sensing device (3) detects that the car is internally provided with the car exhaust port, controls the first fan (1) and the second fan (2) to work and exhaust the air to the outside of the car, and controls the third fan (8) and the fourth fan (9) to work and blow air to the inside of the car; when the elevator moves upwards, when the induction device (3) detects that an automobile tail gas port is formed in the car, the air curtain device (7) is controlled to work to isolate air at the front part of the car and at the rear part of the car, the third fan (8) and the fourth fan (9) are controlled to work to exhaust air outside the car, and meanwhile, the first fan (1) and the second fan (2) are controlled to work to blow air into the car.
12. The elevator car ventilation device of claim 11,
when the elevator runs downwards or upwards, when the sensing device (3) detects that an automobile exhaust port is arranged in the lift car, the control circuit controls the first fan (1), the second fan (2), the third fan (8) and the fourth fan (9) to work at a speed lower than the rated rotating speed of the first fan.
13. The elevator car ventilation device of claim 11,
when the elevator runs downwards or upwards, when the sensing device (3) detects that an automobile exhaust port is arranged in the elevator car, the control circuit controls the centrifugal wind turbine (72) of the wind curtain device (7) to work at a speed lower than the rated rotating speed of the centrifugal wind turbine.
14. The elevator car ventilation device of claim 11,
when the elevator stops running, the control circuit controls the fans and the air curtain device (7) to be closed.
15. The elevator car ventilation device of claim 11,
when the elevator operates and the sensing device does not detect that an automobile tail gas port exists in the lift car, the control circuit controls the air curtain device (7) to be closed and controls the first fan (1) and the second fan (2) to work to blow air into the lift car.
16. The elevator car ventilation device of claim 11,
when the car door is opened, and the sensing device does not detect that an automobile tail gas port exists in the car, the control circuit controls the air curtain device (7) to be closed, and each fan is controlled to blow air into the car, so that the exchange of the air inside and outside the car is realized.
17. The elevator car ventilation device of claim 11,
the sensing device (3) detects the position of the automobile exhaust port through an infrared thermal sensing detector.
18. The elevator car ventilation device of claim 17,
the infrared thermal sensing detector is arranged on the upper part of the lift car close to the side of the lift car door.
19. The elevator car ventilation device of claim 11,
the induction device (3) adopts a front probe and a rear probe;
the front detection head is arranged on the car wall (5) on the side surface of the front part of the car;
the rear detecting head is arranged on the car wall (5) at the side surface of the rear part of the car;
the front and the rear detecting heads adopt an oxygen sensor, a temperature sensor or a nitrogen oxide sensor.
20. The elevator car ventilation device of claim 11,
the air curtain device (7) comprises a C-shaped square pipe (71) and a centrifugal wind turbine (72);
an air curtain hole array is formed on the top plate and the side car wall (5) in the middle of the car in the front-back direction;
the opening side of the C-shaped square pipe (71) is hermetically buckled to the outer side of the car corresponding to the air curtain hole array;
the centrifugal wind turbine (72) is arranged on a C-shaped square pipe (71) on the outer side of the car roof;
when the centrifugal wind turbine (72) is started, high-pressure gas is filled in the whole C-shaped square pipe (71) and blows into the lift car through the air curtain hole arrays of the top plate (4) of the lift car and the side car wall (5) of the lift car to form an air curtain.
21. The elevator car ventilation device of claim 20,
said air curtain device (7) comprises 2 centrifugal wind turbines (72);
two centrifugal wind turbines (72) are respectively installed on the left part and the right part of a C-shaped square pipe (71) on the outer side of the car roof.
CN202110244594.0A 2021-03-05 2021-03-05 Elevator car ventilation device Active CN113063195B (en)

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