CN111795463A - Local negative pressure air circulation system - Google Patents

Local negative pressure air circulation system Download PDF

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Publication number
CN111795463A
CN111795463A CN202010693336.6A CN202010693336A CN111795463A CN 111795463 A CN111795463 A CN 111795463A CN 202010693336 A CN202010693336 A CN 202010693336A CN 111795463 A CN111795463 A CN 111795463A
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CN
China
Prior art keywords
air
negative pressure
pressure air
disinfection
sterilization
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Pending
Application number
CN202010693336.6A
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Chinese (zh)
Inventor
汪家道
翁鼎
庞作波
陈磊
张传彬
张轩鹤
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Tsinghua University
Original Assignee
Tsinghua University
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Tsinghua University filed Critical Tsinghua University
Priority to CN202010693336.6A priority Critical patent/CN111795463A/en
Publication of CN111795463A publication Critical patent/CN111795463A/en
Pending legal-status Critical Current

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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
    • F24F7/06—Ventilation with ducting systems, e.g. by double walls; with natural circulation with forced air circulation, e.g. by fan positioning of a ventilator in or against a conduit
    • F24F7/08—Ventilation with ducting systems, e.g. by double walls; with natural circulation with forced air circulation, e.g. by fan positioning of a ventilator in or against a conduit with separate ducts for supplied and exhausted air with provisions for reversal of the input and output systems
    • 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
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24—HEATING; RANGES; VENTILATING
    • F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
    • F24F3/00—Air-conditioning systems in which conditioned primary air is supplied from one or more central stations to distributing units in the rooms or spaces where it may receive secondary treatment; Apparatus specially designed for such systems
    • F24F3/12—Air-conditioning systems in which conditioned primary air is supplied from one or more central stations to distributing units in the rooms or spaces where it may receive secondary treatment; Apparatus specially designed for such systems characterised by the treatment of the air otherwise than by heating and cooling
    • F24F3/16—Air-conditioning systems in which conditioned primary air is supplied from one or more central stations to distributing units in the rooms or spaces where it may receive secondary treatment; Apparatus specially designed for such systems characterised by the treatment of the air otherwise than by heating and cooling by purification, e.g. by filtering; by sterilisation; by ozonisation
    • 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
    • Y02A—TECHNOLOGIES FOR ADAPTATION TO CLIMATE CHANGE
    • Y02A50/00—TECHNOLOGIES FOR ADAPTATION TO CLIMATE CHANGE in human health protection, e.g. against extreme weather
    • Y02A50/20—Air quality improvement or preservation, e.g. vehicle emission control or emission reduction by using catalytic converters

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  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Disinfection, Sterilisation Or Deodorisation Of Air (AREA)

Abstract

The local negative pressure air circulation system that this patent designed mainly comprises air inlet system and negative pressure exhaust system, disinfection and sterilization system. The working principle is that in the closed space, when the negative pressure air draft system carries out negative pressure air draft to the inside part of the space, external fresh air can carry out effective supplement to the air in the space after being filtered by the air inlet system, and the local air extracted by the negative pressure air draft system is discharged after being treated by the disinfection and sterilization system, so that the circulation of effective disinfection and sterilization air is formed. The circulating system has the advantages of strong purposiveness, high virus killing efficiency, high air circulating efficiency, wide application range and the like for effective air circulation of an environment with local air and bacterial pollution in a closed space, and has good market prospect.

Description

Local negative pressure air circulation system
Technical Field
The invention relates to a local negative pressure air circulation system, in particular to a quick air circulation system with a closed space and local pollution discharge.
Background
Aiming at an air circulation purification system mainly comprising dust and foreign matters in air, an air supply fan is driven to draw air in a space, and the air is filtered and then discharged back to the space to circulate. The problem of the circulating treatment of polluted air in the closed space, such as local biochemical experiments, pollutant volatilization and the like, is mostly solved by adopting a mode of directly preparing a large-scale biological safety cabinet and a fume hood, so that the high cost and space requirements are brought.
Disclosure of Invention
The invention provides a local negative pressure air circulation system aiming at the defects of the existing air circulation system in a closed space.
The invention relates to a local negative pressure air circulation system which mainly comprises an air inlet system, a negative pressure air extraction system and a disinfection and sterilization system. The working principle is that in the closed space, when the negative pressure air draft system carries out negative pressure air draft to the inside part of the space, external fresh air can carry out effective supplement to the air in the space after being filtered by the air inlet system, and the local air extracted by the negative pressure air draft system is discharged after being treated by the disinfection and sterilization system, so that the circulation of effective disinfection and sterilization air is formed.
The air inlet system of the local negative pressure air circulation system is composed of an air inlet 1, an aluminum metal mesh 2 and an HEPA filter screen 3.
The negative pressure air draft system of the local negative pressure air circulation system comprises an air draft opening, an air inlet pipeline, a filter box device, a pipeline fan and an exhaust pipeline 4, wherein the shape of the air draft opening can be flat cuboid, circular, oval and the like, and the filter box system is a quick-release filter element mounting system and is easy to replace.
The disinfection and sterilization system of the local negative pressure air circulation system mainly comprises a liquid solution 5 with disinfection and sterilization functions and an external discharge pipeline 6.
Drawings
FIG. 1 is a flow chart of the circulation system
FIG. 2 is a schematic view of an air intake system
FIG. 3 is a schematic view of a sterilization system
Description of the reference numerals
In FIG. 2, 1 air inlet, 2 aluminum metal mesh and 3HEPA filter screen;
in fig. 3, 4 exhaust pipelines, 5 disinfectant and sterilization liquid and 6 discharge pipelines.
Detailed Description
The invention is further illustrated with reference to the following figures and examples.
Referring to the flow chart of the local negative pressure air circulation system in fig. 1, in the circulation system, after a local pollution source in a closed space is generated, a pipeline fan starts to work, so that local polluted air enters a disinfection and sterilization system through an exhaust port, an air inlet pipeline and a filter box filter device, then enters the disinfection and sterilization system through a pipeline fan, and is discharged outdoors through an external discharge pipeline after disinfection and sterilization are completed. And the air negative pressure caused in the closed space promotes the air to enter the closed space after the air passes through the air inlet, the coarse filtration of the aluminum metal mesh and the medical grade filtration of the HEPA filter screen, thereby supplementing the lost air.
The air inlet system comprises air intake, aluminium system metal mesh and HEPA filter screen. The disinfection and sterilization system adopts a method that the distributed air is discharged outdoors after being disinfected by the disinfection and sterilization liquid.

Claims (4)

1. A local negative pressure air circulation system mainly comprises an air inlet system, a negative pressure air extraction system and a disinfection and sterilization system. The working principle is that in the closed space, when the negative pressure air draft system carries out negative pressure air draft to the inside part of the space, external fresh air can carry out effective supplement to the air in the space after being filtered by the air inlet system, and the local air extracted by the negative pressure air draft system is discharged after being treated by the disinfection and sterilization system, so that the circulation of effective disinfection and sterilization air is formed.
2. The partial negative pressure air circulation system of claim 1, wherein: the air inlet system is composed of an air inlet (1), an aluminum metal mesh (2) and an HEPA filter screen (3).
3. The partial negative pressure air circulation system of claim 1, wherein: the negative pressure air draft system comprises an air draft opening, an air inlet pipeline, a filter box device, a pipeline fan and an exhaust pipeline (4), the shape of the air draft opening can be flat cuboid, circular, oval and the like, and the filter box system is a quick-release filter disc mounting system.
4. The partial negative pressure air circulation system of claim 1, wherein: the disinfection and sterilization system mainly comprises a liquid solution (5) with disinfection and sterilization functions and an external discharge pipeline (6).
CN202010693336.6A 2020-07-17 2020-07-17 Local negative pressure air circulation system Pending CN111795463A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN202010693336.6A CN111795463A (en) 2020-07-17 2020-07-17 Local negative pressure air circulation system

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN202010693336.6A CN111795463A (en) 2020-07-17 2020-07-17 Local negative pressure air circulation system

Publications (1)

Publication Number Publication Date
CN111795463A true CN111795463A (en) 2020-10-20

Family

ID=72807725

Family Applications (1)

Application Number Title Priority Date Filing Date
CN202010693336.6A Pending CN111795463A (en) 2020-07-17 2020-07-17 Local negative pressure air circulation system

Country Status (1)

Country Link
CN (1) CN111795463A (en)

Citations (17)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH08242718A (en) * 1995-03-13 1996-09-24 Sanki Eng Co Ltd Air conditioning system for animal raising chamber
CN1704691A (en) * 2004-05-25 2005-12-07 曹国俊 Sickroom with negative pressure ventilating and disinfecting system
CN2829688Y (en) * 2005-11-01 2006-10-25 朱培鼐 Retrieving delivery negative pressure isolation ward appts
CN101732143A (en) * 2008-11-20 2010-06-16 王学东 Mobile negative-pressure cofferdam
CN203727245U (en) * 2014-02-24 2014-07-23 中国人民解放军军事医学科学院卫生装备研究所 Bio-safety detecting vehicle
CN204634613U (en) * 2015-03-19 2015-09-16 北京天翔昌运节能科技股份有限公司 A kind of have the breeding house that emission intensity controls purification and ventilating system
CN205637697U (en) * 2016-03-21 2016-10-12 广东省南山医药创新研究院 Isolation ward that respiratory disease used
CN205659084U (en) * 2016-04-26 2016-10-26 深圳市南山区慢性病防治院 High infectiousness respiratory disease's isolative protection equipment
CN205993315U (en) * 2016-08-02 2017-03-08 雏鹰农牧集团股份有限公司 One breeding house air circulation system
CN206029962U (en) * 2016-09-13 2017-03-22 中国人民解放军军事医学科学院卫生装备研究所 Bio -safety type birds negative pressure isolator
CN206229374U (en) * 2016-11-20 2017-06-09 合肥优亿科机电科技有限公司 A kind of level Four horizontal cell toxin safety cabinet
CN206228645U (en) * 2016-03-21 2017-06-09 广东省南山医药创新研究院 The injection room of respiratory disorder
CN206656470U (en) * 2017-04-22 2017-11-21 谢龙 Diagnosis isolating device
CN108669809A (en) * 2018-05-29 2018-10-19 广州安捷生物安全科技股份有限公司 A kind of half isolation diagnostic table
CN109424219A (en) * 2017-08-31 2019-03-05 梁廷洲 A kind of Negative Pressure Isolation Room for Infectious Disease system
CN110043999A (en) * 2019-04-24 2019-07-23 中国科学院武汉病毒研究所 A kind of biosecurity laboratory exhaust system and negative pressure keeping method and circulation sterilization method
CN209861893U (en) * 2019-03-25 2019-12-31 范相丽 Indoor air purification system of livestock farm

Patent Citations (17)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH08242718A (en) * 1995-03-13 1996-09-24 Sanki Eng Co Ltd Air conditioning system for animal raising chamber
CN1704691A (en) * 2004-05-25 2005-12-07 曹国俊 Sickroom with negative pressure ventilating and disinfecting system
CN2829688Y (en) * 2005-11-01 2006-10-25 朱培鼐 Retrieving delivery negative pressure isolation ward appts
CN101732143A (en) * 2008-11-20 2010-06-16 王学东 Mobile negative-pressure cofferdam
CN203727245U (en) * 2014-02-24 2014-07-23 中国人民解放军军事医学科学院卫生装备研究所 Bio-safety detecting vehicle
CN204634613U (en) * 2015-03-19 2015-09-16 北京天翔昌运节能科技股份有限公司 A kind of have the breeding house that emission intensity controls purification and ventilating system
CN206228645U (en) * 2016-03-21 2017-06-09 广东省南山医药创新研究院 The injection room of respiratory disorder
CN205637697U (en) * 2016-03-21 2016-10-12 广东省南山医药创新研究院 Isolation ward that respiratory disease used
CN205659084U (en) * 2016-04-26 2016-10-26 深圳市南山区慢性病防治院 High infectiousness respiratory disease's isolative protection equipment
CN205993315U (en) * 2016-08-02 2017-03-08 雏鹰农牧集团股份有限公司 One breeding house air circulation system
CN206029962U (en) * 2016-09-13 2017-03-22 中国人民解放军军事医学科学院卫生装备研究所 Bio -safety type birds negative pressure isolator
CN206229374U (en) * 2016-11-20 2017-06-09 合肥优亿科机电科技有限公司 A kind of level Four horizontal cell toxin safety cabinet
CN206656470U (en) * 2017-04-22 2017-11-21 谢龙 Diagnosis isolating device
CN109424219A (en) * 2017-08-31 2019-03-05 梁廷洲 A kind of Negative Pressure Isolation Room for Infectious Disease system
CN108669809A (en) * 2018-05-29 2018-10-19 广州安捷生物安全科技股份有限公司 A kind of half isolation diagnostic table
CN209861893U (en) * 2019-03-25 2019-12-31 范相丽 Indoor air purification system of livestock farm
CN110043999A (en) * 2019-04-24 2019-07-23 中国科学院武汉病毒研究所 A kind of biosecurity laboratory exhaust system and negative pressure keeping method and circulation sterilization method

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Application publication date: 20201020