CN212076099U - Elevator ventilation system and elevator of malleation air supply - Google Patents
Elevator ventilation system and elevator of malleation air supply Download PDFInfo
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- CN212076099U CN212076099U CN202020254464.6U CN202020254464U CN212076099U CN 212076099 U CN212076099 U CN 212076099U CN 202020254464 U CN202020254464 U CN 202020254464U CN 212076099 U CN212076099 U CN 212076099U
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- 238000009423 ventilation Methods 0.000 title claims abstract description 70
- 230000000694 effects Effects 0.000 abstract description 7
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- 239000007789 gas Substances 0.000 description 6
- 230000008901 benefit Effects 0.000 description 5
- 238000007664 blowing Methods 0.000 description 4
- 208000015181 infectious disease Diseases 0.000 description 4
- 230000000670 limiting effect Effects 0.000 description 4
- 230000008859 change Effects 0.000 description 3
- 230000005541 medical transmission Effects 0.000 description 3
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- 230000003068 static effect Effects 0.000 description 3
- 238000003915 air pollution Methods 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 238000007599 discharging Methods 0.000 description 2
- 239000003344 environmental pollutant Substances 0.000 description 2
- 230000002349 favourable effect Effects 0.000 description 2
- 238000001914 filtration Methods 0.000 description 2
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- 238000009434 installation Methods 0.000 description 2
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- 230000001717 pathogenic effect Effects 0.000 description 2
- 231100000719 pollutant Toxicity 0.000 description 2
- 230000002265 prevention Effects 0.000 description 2
- 230000000644 propagated effect Effects 0.000 description 2
- 208000019901 Anxiety disease Diseases 0.000 description 1
- 238000004378 air conditioning Methods 0.000 description 1
- 230000036506 anxiety Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 239000010432 diamond Substances 0.000 description 1
- 229940079593 drug Drugs 0.000 description 1
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- 230000006872 improvement Effects 0.000 description 1
- 230000002458 infectious effect Effects 0.000 description 1
- 238000002955 isolation Methods 0.000 description 1
- 210000001503 joint Anatomy 0.000 description 1
- 230000002147 killing effect Effects 0.000 description 1
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- 230000008569 process Effects 0.000 description 1
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- 238000004659 sterilization and disinfection Methods 0.000 description 1
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Abstract
The utility model belongs to elevator ventilation field provides elevator ventilation system and elevator of malleation air supply. The novel elevator ventilation system solves the problems that the ventilation effect of the existing ventilation scheme is poor, public health safety risks exist, enough fresh air can be guaranteed to enter the elevator, and the ventilation effect is good. The elevator ventilation system comprises a positive pressure blower and a positive pressure air supply pipeline; the positive pressure blower is arranged above the elevator shaft at the position where the building is communicated with outdoor fresh air; the positive pressure blower is connected with the upper end of a positive pressure air supply pipeline, the positive pressure air supply pipeline is arranged in the elevator shaft, and the lower end of the positive pressure air supply pipeline directly sends outdoor fresh air sent by the positive pressure blower into the elevator shaft; the positive pressure air supply pipeline is provided with positive pressure air supply outlets at preset positions of door openings of elevator cars at all layers and is used for sending outdoor fresh air in the positive pressure air supply pipeline into the elevator cars; and a residual pressure valve is also arranged at the top of the elevator car and used for maintaining the stability of the air pressure difference between the elevator shaft and the elevator car.
Description
Technical Field
The utility model belongs to elevator ventilation field especially relates to an elevator ventilation system and elevator of malleation air supply.
Background
The statements in this section merely provide background information related to the present disclosure and may not necessarily constitute prior art.
Generally, the elevator shaft is a completely closed space in which the elevator car is placed. The elevator car in public places has the condition that the passenger density is large and the contact distance is short, and if the elevator car does not have good ventilation conditions and meets public health events such as epidemic situations and the like, the public safety hidden dangers of contact infection and virus spread are easily caused. Passenger elevators in public places, particularly elevators used in medical institutions, are beneficial to preventing disease transmission, and good ventilation environment is kept, so that air circulation of elevator cars and shafts is smooth and fresh, and passengers are prevented from being infected by viruses and pathogenic factors, and particularly, the elevators have good ventilation conditions under the conditions of flu, epidemic situations and the like.
The ventilation of the elevator in the prior art generally adopts the following two schemes: a ventilation device is arranged on the elevator car, and air in the car is exchanged with the outside of the car through a ventilator, a ventilation hole or a door opening. An exhaust device (including a filter device) is provided in the elevator car or the hoistway, air in the elevator car or the hoistway is exhausted from the elevator car or the hoistway by the exhaust device, the air in the car or the hoistway becomes thin to form a negative pressure region, and outdoor air enters the car or the hoistway due to a pressure difference.
The inventor has found that the solution of providing a ventilation device on the elevator car has the problems that: the ventilation circulation space of the elevator car is small (only in the local range of the car and a shaft) and the strength is limited (depending on an axial flow fan or a fan arranged at the top of the car); secondly, the elevator shaft is a totally closed space, no external ventilation facility is provided, and the air in the elevator car and the shaft is difficult to exchange with outdoor fresh air.
The scheme that sets up exhaust device on elevator car or well has the problem that: negative pressure ventilation is influenced by openings such as opening doors and shaft holes of an elevator, air supply capacity of the elevator is greatly influenced, and the increase of pressure difference can cause breathing of passengers in a lift car to be trapped; secondly, if harmful gases such as smoke, infectious sources and the like exist in the external environment of the opening door of the elevator and the opening of the hoistway, harmful air is easily sucked, and greater hidden danger is brought to sanitation prevention and control; and thirdly, under special conditions, if the elevator environment needs to be disinfected in an epidemic situation period, the negative pressure system is difficult to implement.
In summary, the inventor finds that the ventilation effect of the scheme of arranging the ventilation device on the elevator car and the scheme of arranging the exhaust device on the elevator car or the hoistway are not good, and certain public health safety risk exists.
SUMMERY OF THE UTILITY MODEL
In order to solve the problem, the utility model discloses an aspect provides an elevator ventilation system of malleation air supply, and its air freshness that can guarantee elevator car improves elevator ventilation effect.
In order to achieve the above purpose, the utility model adopts the following technical scheme:
a positive pressure air supply elevator ventilation system comprises a positive pressure air feeder and a positive pressure air supply pipeline; the positive pressure blower is arranged above the elevator shaft at a position where a building is communicated with outdoor fresh air; the positive pressure blower is connected with the upper end of a positive pressure air supply pipeline, the positive pressure air supply pipeline is arranged in the elevator shaft, and the lower end of the positive pressure air supply pipeline directly sends outdoor fresh air sent by the positive pressure blower into the elevator shaft; the positive pressure air supply pipeline is provided with positive pressure air supply outlets at preset positions of door openings of elevator cars at all layers and is used for sending outdoor fresh air in the positive pressure air supply pipeline into the elevator cars; the elevator car top still is provided with the residual pressure valve for it is stable to maintain the atmospheric pressure difference between elevator well and the elevator car.
In one embodiment, an exhaust device is further arranged above the elevator shaft.
The advantage of above-mentioned scheme lies in, this embodiment utilizes exhaust device to be favorable to maintaining the pressure stability in the elevator well, can realize elevator car's natural draft, effectively ensures elevator car and outdoor air's smooth and easy exchange, can prevent elevator car microenvironment because the unfavorable air pollution and the pathogen of causing of ventilation are propagated, and the guarantee passenger is healthy.
In one embodiment, the air exhaust device is a one-way air exhaust device to the outside of the elevator shaft.
In one embodiment, a filter screen is arranged at the positive pressure air supply port.
The advantage of above-mentioned scheme lies in, this embodiment utilizes the filter screen to filter the large granule pollutant that gets into in the elevator car.
In one embodiment, the positive pressure supply port is circular.
It will be appreciated that the positive pressure supply air outlet may have other shapes than circular, such as square or diamond.
In one embodiment, the forced draft duct is formed by butting a plurality of sub forced draft ducts.
The advantage of above-mentioned scheme is that, this embodiment presses the supply air pipeline butt joint to form the forced draft pipeline through a plurality of roots, has improved the installation convenience of the elevator ventilation system of malleation air supply.
In one embodiment, two adjacent sub-pressure air supply pipelines are connected through threads.
It can be understood that the two adjacent sub-pressure air supply ducts can be fixed by other methods, such as bolts.
As an implementation mode, the bottom of the elevator car is further provided with a vent hole, and the vent hole is communicated with an elevator shaft. The ventilation holes are used for enabling the gas in the elevator shaft and the elevator car to form a circulating airflow.
In one embodiment, a filter screen is also arranged at the air vent. And filtering the gas flowing into the elevator car by using a filter screen.
A second aspect of the present invention provides an elevator, which comprises the above-mentioned elevator ventilation system for positive pressure air supply.
The utility model has the advantages that:
(1) the elevator ventilation system of this embodiment malleation air supply utilizes malleation forced draught blower to send outdoor fresh air into the elevator well in, and then sends outdoor fresh air in the malleation air supply pipeline into the elevator car through the malleation supply-air outlet that is linked together with the elevator well, has realized carrying out mandatory ventilation to the space of elevator well, car, can ensure that sufficient fresh air gets into the elevator, under specific period (like epidemic situation), specific environment (like medical institution), prevent passenger contact infection to the elevator that public occasion especially medical institution used, it has important safeguard effect to reduce the virus propagation.
(2) The elevator car top of this embodiment is equipped with the backpressure valve, utilizes the backpressure valve to maintain the atmospheric pressure difference between elevator well and the elevator car stable, makes the elevator ventilation system of malleation air supply not change elevator control system like this, does not influence the operation function of elevator, accords with special equipment safety technical specification's requirement.
(3) The positive pressure air supply elevator ventilation system of the embodiment can be independently used as a product for an elevator in need of preventing disease transmission, performing elevator air sterilization and improving ventilation conditions.
Drawings
The accompanying drawings, which form a part of the specification, are included to provide a further understanding of the invention, and are incorporated in and constitute a part of this specification, illustrate embodiments of the invention and together with the description serve to explain the invention without unduly limiting the scope of the invention.
Fig. 1 is a schematic structural view of a positive pressure air supply elevator ventilation system of the embodiment of the invention;
fig. 2 is a schematic view of elevator car ventilation of an embodiment of the present invention;
fig. 3 is the reverse blowing schematic diagram of the elevator car door opening of the embodiment of the utility model.
Wherein, 1-positive pressure blower; 2-positive pressure air supply pipeline; 3-positive pressure air supply outlet; 4-residual pressure valve; 5-an elevator car; 6-elevator car doors; 7-an exhaust device; 8-elevator shaft.
Detailed Description
The present invention will be further explained with reference to the accompanying drawings and examples.
It should be noted that the following detailed description is exemplary and is intended to provide further explanation of the invention. Unless defined otherwise, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this invention belongs.
It is noted that the terminology used herein is for the purpose of describing particular embodiments only and is not intended to be limiting of example embodiments in accordance with the invention. As used herein, the singular forms "a", "an" and "the" are intended to include the plural forms as well, and it should be understood that when the terms "comprises" and/or "comprising" are used in this specification, they specify the presence of stated features, steps, operations, devices, components, and/or combinations thereof, unless the context clearly indicates otherwise.
In the present invention, the terms such as "upper", "lower", "left", "right", "front", "rear", "vertical", "horizontal", "side", "bottom", and the like indicate the position or positional relationship based on the position or positional relationship shown in the drawings, and are only the terms determined for convenience of describing the structural relationship of each component or element of the present invention, and are not specific to any component or element of the present invention, and are not to be construed as limiting the present invention.
In the present invention, terms such as "fixedly connected", "connected", and the like are to be understood in a broad sense, and may be fixedly connected, or may be integrally connected or detachably connected; may be directly connected or indirectly connected through an intermediate. The meaning of the above terms in the present invention can be determined according to specific situations by persons skilled in the art, and should not be construed as limiting the present invention.
Example one
Fig. 1 is a schematic structural diagram of a positive pressure air supply elevator ventilation system according to the embodiment.
The specific structure of the positive pressure air supply elevator ventilation system of the present embodiment is described in detail below with reference to fig. 1:
as shown in fig. 1, the positive pressure supply elevator ventilation system of the present embodiment includes a positive pressure blower, a positive pressure supply duct, a backpressure valve, and an exhaust device.
Specifically, the positive pressure blower 1 is arranged above the elevator shaft 8 at a position where the building is communicated with outdoor fresh air; the positive pressure blower 1 is connected with the upper end of a positive pressure air supply pipeline 2, the positive pressure air supply pipeline 2 is arranged in an elevator shaft 8, and the lower end of the positive pressure air supply pipeline 2 directly sends outdoor fresh air sent by the positive pressure blower into the elevator shaft; the positive pressure air supply pipeline 2 is provided with positive pressure air supply outlets 3 at preset positions of door openings of elevator cars at all layers and used for sending outdoor fresh air in the positive pressure air supply pipeline into the elevator cars 5. The residual pressure valve 4 is arranged on the top of the elevator car 5. In specific implementation, the residual pressure valve is a device which is arranged for maintaining a certain indoor static pressure and realizing the energy-consumption-free automatic control of the positive pressure of an air-conditioning room; and the air volume adjusting device is opened in one direction, the opening degree is adjusted according to the static pressure difference, and the position of a heavy hammer is used for balancing the air pressure. The residual pressure valve has good adaptability to sharp static pressure change. The residual pressure valve consists of an outer frame, a valve plate and a counterweight, wherein the maximum opening angle of the valve plate is 45 degrees, and the valve plate is used for maintaining the pressure difference between the indoor and the outdoor, discharging the indoor residual air and preventing the outdoor air from invading.
When the difference value between the air pressure in the lift car and the air pressure in the well is smaller than a set value, the residual pressure valve is opened, and air enters the lift car; when the difference between the air pressure in the elevator car and the air pressure in the shaft is basically balanced, the residual pressure valve is closed.
In a specific implementation, the pressure in the elevator shaft > the pressure in the elevator car > the pressure in the elevator room outside the elevator door. The calculation of the positive pressure degree accords with the national mandatory technical standard, such as GB51251-2017 technical standard of building smoke prevention and exhaust system.
In this embodiment, a filter screen is arranged at the positive pressure air supply port. This embodiment utilizes the filter screen to filter the large granule pollutant that gets into in the elevator car.
In the present embodiment, the air discharging device 7 is disposed above the elevator shaft. Wherein, the exhaust device 7 is a unidirectional exhaust device towards the outside of the elevator shaft. Wherein the exhaust device 7 can be realized by an exhaust fan.
The embodiment utilizes the exhaust device to be favorable to maintaining the pressure stability in the elevator well, can realize elevator car's natural draft, effectively ensures elevator car and outdoor air's smooth and easy exchange, can prevent elevator car microenvironment because the unfavorable air pollution and the sick source that cause of ventilation are propagated, and the guarantee passenger is healthy.
In a specific implementation, the positive pressure blower is started to introduce outdoor fresh air into the positive pressure blower pipeline. Wherein, the structure of positive pressure forced draught blower can adopt current structure to realize, for example: the positive pressure blower has an impeller that rotates about a central axis extending in the vertical direction; a motor that rotates the impeller; and a base portion on which the motor is provided, wherein the impeller includes: a cup portion covering the motor; and a plurality of blades arranged in the circumferential direction and extending radially outward from the cup portion, wherein a gap that gradually narrows from the inside of the cup portion toward the outside is formed between the cup portion and the base portion.
It is understood that the structure of the positive pressure blower may also adopt the existing positive pressure blower structure for introducing the outdoor fresh air into the positive pressure blower pipeline.
In the specific implementation, in order to facilitate the installation of the whole positive pressure air supply elevator ventilation system, the positive pressure air supply pipeline can be formed by butting one pipeline or a plurality of sub positive pressure air supply pipelines. The shape of the positive pressure air supply duct is not limited, and may be circular, rectangular, square, oval, or other shapes. The shape of the positive pressure air supply pipeline is matched with that of the positive pressure air supply outlet, so that outdoor fresh air in the positive pressure air supply pipeline can be sent into the elevator car to the maximum extent, and the ventilation efficiency of the elevator is improved.
In the specific implementation, two adjacent sub-pressure air supply pipelines are connected through threads.
It can be understood that the two adjacent sub-pressure air supply ducts can be fixed by other methods, such as bolts.
In specific implementation, the bottom of the elevator car is also provided with a vent hole, and the vent hole is communicated with an elevator hoistway. The ventilation holes are used for enabling the gas in the elevator shaft and the elevator car to form a circulating airflow.
And a filter screen is also arranged at the vent hole. And filtering the gas flowing into the elevator car by using a filter screen.
The working process of the positive pressure air supply elevator ventilation system of the embodiment is as follows:
when air supply is needed, the positive pressure air feeder 1 is connected, the positive pressure air feeder 1 supplies air to the positive pressure air supply pipeline 2, the positive pressure air supply pipeline 2 supplies air to the elevator shaft 8 through the positive pressure air supply outlet 3, when the pressure in the elevator car 5 is smaller than the pressure in the shaft, the residual pressure valve 4 is opened, and the positive pressure air supply outlet 3 supplies air to the residual pressure valve 4. An exhaust device 7 is arranged above the elevator shaft 8, the exhaust device 7 is provided with a one-way valve, the exhaust device 7 is in a closed state at ordinary times, the exhaust device 7 is opened within a set time or period, and air in the elevator shaft 8 is exhausted to the outside.
As shown in fig. 2, when the pressure of the elevator car 5 is lower than the pressure of the elevator shaft 8, the residual pressure valve 4 opens inward, and the circulating air flow enters the elevator car 5 and circulates through car ventilation holes formed around the car. When the exhaust device 7 is not opened to work, circulating airflow keeps air circulation between the elevator car and an elevator shaft through car ventilation holes on the periphery of the car; when the air exhausting device 7 is opened to work, the air in the elevator car and the elevator shaft is exhausted to the outside through the air exhausting device 7.
As shown in fig. 3, when the elevator car 5 stops and passengers enter or exit, the elevator car door 6 is opened, the pressure of the elevator car 5 is instantaneously reduced, at this time, the back-blowing airflow in the elevator car 5 still keeps a certain wind speed, and the outdoor air is difficult to enter the back-blowing airflow 5 quickly under the back-blowing airflow door opening wind speed, so that the entering of the external air is prevented.
The positive pressure air supply elevator ventilation system of the embodiment has the following advantages:
1) the positive-pressure air supply elevator ventilation system can perform forced ventilation on the spaces of an elevator shaft and a car, can ensure that enough fresh air enters an elevator, and has important protection effects on preventing passengers from contacting and infecting passengers and reducing virus propagation for elevators used in public places, particularly medical institutions, in a specific period (such as epidemic situations) and in a specific environment (such as medical institutions); 2) the elevator of the positive-pressure air supply elevator ventilation system can keep certain air isolation with a building space through the door opening air speed, prevent corrosive polluted gas and smoke from entering an elevator car, and ensure the air freshness of the elevator car; 3) the positive-pressure air supply elevator ventilation system can be used for spraying medicines to an elevator shaft, a car and the surrounding environment to sterilize air, so that virus propagation is prevented; 4) according to the positive-pressure air supply elevator ventilation system, when people in a faulty elevator car are trapped, good ventilation conditions bring psychological soothing and enough fresh air to the trapped people, so that the anxiety of related people is effectively stabilized, and the smooth operation of rescue work is facilitated; 5) the positive-pressure air supply elevator ventilation system does not change an elevator control system, does not influence the running function of an elevator, and meets the requirement of special equipment safety technical specification; 6) the positive pressure air supply elevator ventilation system of the embodiment can be independently used as a product for an elevator in need of preventing disease transmission, killing elevator air and improving ventilation conditions.
Example two
The embodiment provides an elevator, which comprises the positive pressure air supply elevator ventilation system. Wherein, other structures of elevator are present structure, and the description here is not tired again.
The elevator of this embodiment utilizes the elevator ventilation system of malleation air supply, can carry out mandatory ventilation to the space of elevator well, car, can ensure that sufficient fresh air gets into the elevator, under specific period (like epidemic situation), specific environment (like medical institution), prevents passenger's contact infection, reduces the virus propagation to the elevator that public occasion especially medical institution used and has important safeguard effect.
The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention, and various modifications and changes may be made by those skilled in the art. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.
Claims (10)
1. A positive pressure air supply elevator ventilation system is characterized by comprising a positive pressure air supply machine and a positive pressure air supply pipeline; the positive pressure blower is arranged above the elevator shaft at a position where a building is communicated with outdoor fresh air; the positive pressure blower is connected with the upper end of a positive pressure air supply pipeline, the positive pressure air supply pipeline is arranged in the elevator shaft, and the lower end of the positive pressure air supply pipeline directly sends outdoor fresh air sent by the positive pressure blower into the elevator shaft; the positive pressure air supply pipeline is provided with positive pressure air supply outlets at preset positions of door openings of elevator cars at all layers and is used for sending outdoor fresh air in the positive pressure air supply pipeline into the elevator cars; the elevator car top still is provided with the residual pressure valve for it is stable to maintain the atmospheric pressure difference between elevator well and the elevator car.
2. The positive pressure air supply elevator ventilation system according to claim 1, wherein an air exhaust device is further provided above the elevator shaft.
3. The positive pressure supply elevator ventilation system of claim 2 wherein said exhaust means is a one-way exhaust means to the outside of the hoistway.
4. The positive pressure air supply elevator ventilation system of claim 1, wherein a filter screen is arranged at the positive pressure air supply port.
5. The positive pressure supply elevator ventilation system of claim 1, wherein the positive pressure supply port is circular.
6. The positive pressure air supply elevator ventilation system according to claim 1, wherein the forced air duct is formed by butt-joining a plurality of sub forced air ducts.
7. The positive pressure supply elevator ventilation system according to claim 6, wherein the adjacent two sub-pressure supply ducts are connected by a screw thread.
8. The positive pressure air supply elevator ventilation system of claim 1, wherein the bottom of the elevator car is further provided with vent holes, and the vent holes are communicated with the elevator shaft.
9. The positive pressure air supply elevator ventilation system according to claim 8, wherein a filter screen is also provided at the vent hole.
10. Elevator, characterized in that it comprises a positive-pressure air supply elevator ventilation system according to any of claims 1-9.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020254464.6U CN212076099U (en) | 2020-03-04 | 2020-03-04 | Elevator ventilation system and elevator of malleation air supply |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020254464.6U CN212076099U (en) | 2020-03-04 | 2020-03-04 | Elevator ventilation system and elevator of malleation air supply |
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| CN212076099U true CN212076099U (en) | 2020-12-04 |
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| CN202020254464.6U Expired - Fee Related CN212076099U (en) | 2020-03-04 | 2020-03-04 | Elevator ventilation system and elevator of malleation air supply |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113060624A (en) * | 2021-03-19 | 2021-07-02 | 天津市特种设备监督检验技术研究院(天津市特种设备事故应急调查处理中心) | Safety epidemic prevention elevator and use method thereof |
| CN113415698A (en) * | 2021-05-21 | 2021-09-21 | 百盛联合集团有限公司 | Elevator car ventilation system |
-
2020
- 2020-03-04 CN CN202020254464.6U patent/CN212076099U/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113060624A (en) * | 2021-03-19 | 2021-07-02 | 天津市特种设备监督检验技术研究院(天津市特种设备事故应急调查处理中心) | Safety epidemic prevention elevator and use method thereof |
| CN113060624B (en) * | 2021-03-19 | 2021-09-14 | 天津市特种设备监督检验技术研究院(天津市特种设备事故应急调查处理中心) | Safety epidemic prevention elevator and use method thereof |
| CN113415698A (en) * | 2021-05-21 | 2021-09-21 | 百盛联合集团有限公司 | Elevator car ventilation system |
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