WO2014198119A1 - 辐流洁净室空调送、回风系统的辐流送风通道装置 - Google Patents

辐流洁净室空调送、回风系统的辐流送风通道装置 Download PDF

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Publication number
WO2014198119A1
WO2014198119A1 PCT/CN2013/090929 CN2013090929W WO2014198119A1 WO 2014198119 A1 WO2014198119 A1 WO 2014198119A1 CN 2013090929 W CN2013090929 W CN 2013090929W WO 2014198119 A1 WO2014198119 A1 WO 2014198119A1
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Prior art keywords
air supply
clean room
air
radial
arc
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PCT/CN2013/090929
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English (en)
French (fr)
Inventor
宋建立
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石家庄奥祥医药工程有限公司
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Publication of WO2014198119A1 publication Critical patent/WO2014198119A1/zh

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Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24—HEATING; RANGES; VENTILATING
    • F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
    • F24F13/00—Details common to, or for air-conditioning, air-humidification, ventilation or use of air currents for screening
    • F24F13/02—Ducting arrangements
    • F24F13/06—Outlets for directing or distributing air into rooms or spaces, e.g. ceiling air diffuser
    • F24F13/072—Outlets for directing or distributing air into rooms or spaces, e.g. ceiling air diffuser of elongated shape, e.g. between ceiling panels
    • 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
    • F24F3/167—Clean rooms, i.e. enclosed spaces in which a uniform flow of filtered air is distributed
    • 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
    • F24F7/10—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 air supply, or exhaust, through perforated wall, floor or ceiling

Definitions

  • Radial flow air passage device for airflow sending and return air system of radial flow clean room
  • the present invention relates to a radial flow air passage device for a radial clean room air conditioning delivery and return air system, belonging to the field of indoor air cleaning technology, and is suitable for rooms requiring cleanliness, such as medicine, food production workshops, Fine processing and manufacturing companies' workshops and hospital sterilized wards.
  • the commonly used turbulent clean room air conditioning delivery and return air system uses a scheme of arranging a certain number of high-efficiency filters on the top of the clean room, and the clean airflow and the clean room originally filtered from the indoor diffuser cover are filtered. The air is mixed to make the original air pollutants "diluted”. Because the high-efficiency filter on the top of the clean room uses "dot distribution", the indoor airflow distribution is very uneven. Although the turbulent clean room cost and operation cost are low, due to the inherent defects of the clean indoor airflow, it is generally only applicable to Clean room with 10,000 and 100,000 cleanliness. The turbulent flow clean room is usually sent back to the wind.
  • the air conditioning unit uses a set of complete sets of products.
  • the room of the unit is mostly separated from the clean room. Therefore, it is necessary to lay a special delivery and return air duct to connect with it.
  • a special air supply main pipe is usually required.
  • the air supply pipe is connected with the dispersed static pressure tank, and a regulating valve is arranged between the main air supply pipe and the air supply pipe and the static pressure box for air volume adjustment.
  • the current turbulent clean room delivery and return air duct system is complicated in process, difficult to construct, and the air conditioner sends back wind to operate with high resistance, resulting in high operating costs.
  • the disadvantage of the turbulent clean room is that the flow field of the clean air that is sent into the clean room often causes a "vortex" in the inner part of the room, so that the harmful substances generated in the room cannot be discharged with a minimum degree of diffusion, resulting in clean room cleanliness.
  • the degree of dynamic detection is not good.
  • the commonly used unidirectional flow clean room is to fill the high-efficiency filter along the top of the clean room, so that the entire clean room forms a uniformly distributed clean air flow, and most of the pollutants flow to the return air port with the shortest path along the air flow.
  • the one-way flow clean room uses a floor grille return air system, resulting in expensive construction.
  • the technical problem to be solved by the present invention is to provide a radial air supply channel device for a radial clean room air conditioning delivery and return air system that has a simple structure, low investment, and can meet the cleanliness level requirements of a clean room. [0008]
  • a radial flow air passage device for a radial clean room air conditioning sending and returning air system characterized by a clean room top plate, a static pressure box type air supply passage, a pressure equalizing partition plate, a curved radial flow cover, a damping layer and The high-efficiency filter group is composed; the arc-shaped spoke cover is uniformly provided with an outflow hole, the damping layer is attached to the inner wall of the arc-shaped spoke cover, and the damping layer is a filter layer made of nylon material; a pressure equalizing hole is evenly distributed on the pressure equalizing partition, and the static pressure box air supply passage, the pressure equalizing partition, the curved radial flow cover and the clean room top plate are sealed and connected together by a connecting member.
  • the static pressure box type air supply passage and the curved radial flow cover are respectively located above and below the top of the clean room, and the chamber between the static pressure box type air supply passage and the pressure equalization partition is a ventilation passage;
  • the chamber between the arc-shaped spoke hoods is a pressure equalization box;
  • the arc-shaped spoke hood is arranged along the longer longitudinal direction of the top of the clean room or at the top of the longer length side wall;
  • One end of the static pressure box type air passage is supplied with air through the high efficiency filter group and the air conditioner
  • the pipelines are connected to each other, and the air-conditioning air supply duct is connected to the static air pressure box of the air-conditioning air outlet installed at the air outlet of the air conditioner.
  • the pressure equalizing hole on the pressure equalizing partition is a circular hole or a strip hole, and when it is a strip hole, the pressure equalizing partition is composed of two or more pieces, and two adjacent pressure equalizing partitions
  • the gap between the adjustments is adjustable.
  • the outflow holes located on the curved spoke cover are round holes or strip holes.
  • the area S of the pressure equalization hole is calculated according to the theory of equal section air supply duct, and the calculation formula is as follows: s - Q
  • Q is the air supply volume of the ventilation passage, and the unit is m 3 /s;
  • ⁇ is the flow coefficient at the pressure equalization orifice
  • Pj p is the average static pressure at the pressure equalization orifice, and the unit is Pa.
  • the curved radial flow cover is a semi-circular radial flow cover.
  • the radius of curvature of the arc-shaped spoke cover is determined by the required ventilation amount of the clean room, and the radius of curvature of the arc-shaped spoke cover, the size of the outflow hole, and the density of the opening holes determine the arc-shaped spoke flow.
  • the wind speed V of the wind outlet is covered, and the wind speed V ranges from 0.3 m/s to ⁇ V ⁇ 0.5 m/s.
  • the flow field of the radial flow clean room is not uniform in a single direction, but is distributed along the radial direction of the arc-shaped spoke cover.
  • the purification mechanism is different from the dilution blending of the turbulent clean room. It is also different from the parallel piston action of the unidirectional flow clean room airflow line. It uses fewer high-efficiency filter sets to form a flow field of the replacement flow in the clean room. It adopts a new outlet hole form and airflow organization scheme. , use as little clean air as possible to meet the cleanliness level required by the clean room.
  • the cavity between the static pressure box air supply passage and the pressure equalization partition forms a ventilation passage. Due to the cross-sectional area of the ventilation passage
  • the invention adopts a "radial flow air supply” ventilation system, uses a static pressure box type air supply passage, and eliminates the air volume adjustment valve, thereby reducing the running resistance of the air supply and return air system.
  • the invention has fewer high-efficiency filter groups, less investment in clean room construction, energy saving operation, and convenient maintenance.
  • FIG. 1 is a bottom view of FIG. 2.
  • FIG. 2 is a schematic structural view of the present invention (ie, an enlarged view of FIG. 5).
  • FIG. 3 is a plan view of FIG. 2.
  • FIG. 4 is a view showing a state of use of the sprue clean room of the present invention (that is, a cross-sectional view taken along line B-B of FIG. 5).
  • FIG. 5 is a cross-sectional view taken along line A-A of FIG. 4.
  • 1 static pressure box type air supply duct 2 equalizing diaphragm, 3 clean room top plate, 4 damping layer, 5 arc-shaped spoke cover, 6 cross-sectional shape is inverted "T" Shaped connector, 7-section shape "U” shaped connector, 8 high efficiency filter set, 9 air conditioning return air duct, 10 air conditioning air duct, 11 air conditioning air outlet static pressure box, 12 air conditioning fan, 13 air conditioning unit Primary and intermediate efficiency filter, 14 air conditioning return air pressure static pressure box, 15 air conditioning unit, 16 air conditioning fresh air outlet filter, 17 return air branch pipe, 18 clean room, 19 return air filter device, 20 sandwich wall return air duct, 21 Mezzanine wall return air duct, 22 return air branch.
  • FIG. 1-5 It can be seen from the embodiment shown in FIG. 1-5 that it is composed of a clean room top plate 3, a static pressure box type air supply passage 1, and a pressure equalization partition plate.
  • the arc-shaped spoke cover 5, the damping layer 4 and the high-efficiency filter group 8 are composed; the arc-shaped spoke cover 5 is uniformly provided with an outflow hole, and the damping layer 4 is attached to the curved spoke cover 5
  • the damping layer 4 is a filter layer made of nylon material;
  • the pressure equalizing partition 2 is evenly distributed with a pressure equalizing hole, and the static pressure box type air supply passage 1 and the pressure equalizing partition 2
  • the curved spoke cover 5 and the clean room top plate 3 are sealed and connected together by a connecting member, and the static pressure box air supply passage 1 and the curved radial flow cover 5 are respectively located above and below the clean room top plate 3,
  • the chamber between the static pressure box air supply passage 1 and the pressure equalization partition 2 is ventilated a channel;
  • a chamber between the pressure equalization partition 2 and the curved flow cover 5 is a pressure equalization box;
  • the pressure equalizing partition 2 is located on the top surface of the curved radial flow cover 5; the static pressure box air supply passage 1 is located above the pressure equalizing partition 2, and the static pressure box type
  • the air supply passage 1, the pressure equalizing partition 2 and the curved radial flow cover 5 are fixed on the clean room top plate 3 by a connecting member 7 having a cross-sectional shape of an inverted "T" type connecting member 6 and a cross-sectional shape of "U" shape.
  • the curved spoke cover 5 is arranged along the longer longitudinal direction of the top of the clean room 18 (see FIG. 4), and may also be arranged along the longer length of the side wall of the longitudinal direction. At this time, the return air opening is located.
  • the pressure equalizing hole on the pressure equalizing separator 2 is a circular hole or a strip hole.
  • the pressure equalizing partition 1 is composed of two or more pieces, and two adjacent pressures are equalized.
  • the gap between the partitions 2 is adjustable.
  • the outflow holes on the curved spoke cover 5 are round holes or strip holes.
  • the area S of the pressure equalization hole is calculated according to the theory of equal section air supply duct, and the calculation formula is as follows:
  • Q is the air supply volume of the ventilation passage, and the unit is m 3 /s;
  • ⁇ is the flow coefficient at the pressure equalization orifice
  • P jP is the average static pressure at the pressure equalization orifice, and the unit is Pa.
  • the curved baffle cover 5 is a semicircular flow cover.
  • the radius of curvature of the arc-shaped spoke cover 5 is determined by the required ventilation amount of the clean room, and the radius of curvature of the arc-shaped spoke cover 5, the size of the outflow hole, and the density of the opening holes determine the arc shape.
  • the wind speed v of the windshield outlet hole, the range of the wind speed V is: 0.3 m / s ⁇ V ⁇ 0.5 m / s.

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  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Air-Flow Control Members (AREA)
  • Ventilation (AREA)
  • Duct Arrangements (AREA)

Abstract

本发明涉及一种辐流洁净室空调送、回风系统的辐流送风通道装置，该装置由洁净室顶板（3）、静压箱式送风通道（1）、均压隔板（2）、弧形辐流罩（5）、阻尼层（4）和高效过滤器组（8）组成；在所述弧形辐流罩（5）上均布有出流孔，所述阻尼层（4）贴于弧形辐流罩（5）的内壁上；在所述均压隔板（2）上均布有均压孔，所述均压孔为圆孔或条形孔，当为条形孔时，所述均压隔板（2）由2块以上组成，相邻两块均压隔板（2）之间的间隙可调；所述静压箱式送风通道（1）、均压隔板（2）、弧形辐流罩（5）以及洁净室顶板（3）之间通过连接件密封连接在一起，所述静压箱式送风通道（1）和弧形辐流罩（5）分别位于洁净室顶板（3）的上方和下方，静压箱式送风通道（1）与均压隔板（2）之间的腔室为通风通道；均压隔板（2）与弧形辐流罩（5）之间的腔室为均压箱；所述弧形辐流罩（5）沿洁净室（18）顶部较长的长度方向中部位置或者沿较长的长度方向侧壁顶部位置通长布置。

Description

辐流洁净室空调送、 回风系统的辐流送风通道装置 技术领域
[0001] 本发明涉及一种辐流洁净室空调送、 回风系统的辐流送风通道装置， 属于室内空气 洁净技术领域， 适用于对洁净度有要求的房间， 例如医药、 食品生产车间、 精细加工制造企 业的车间和医院的无菌病房等。
背景技术
[0002] 目前， 常用的乱流洁净室空调送、 回风系统使用通过在洁净室顶部布置一定数量的 高效过滤器的方案， 经过滤后从室内散流罩射出的洁净气流与洁净室内原有空气混合， 使原 有空气中的污染物得到了 "稀释"。 由于其洁净室顶部的高效过滤器使用 "点分布"， 致使 室内气流分布很不均匀， 虽然这种乱流洁净室造价和运行费用较低， 但是由于洁净室内气流 固有的缺陷， 一般仅适用于万级及十万级以上洁净度的洁净室。 乱流洁净室常用送回风方式 为顶送侧下墙回风。
[0003] 乱流洁净室的送风通道的结构如下：
空调机组使用定型成套产品， 其安放机组的机房多数距洁净室有一定的距离， 因此需要敷设 专用的送、 回风管道与之进行连接， 在洁净室顶部通常也需敷设专用的送风主管道及送风支 管道与分散的静压箱进行连接， 主送风管道与送风支管道及静压箱之间均设置有调节阀以便 进行风量调节。 现行的乱流洁净室送、 回风管道系统工艺复杂， 施工难度较大， 并且空调送 回风运行阻力大， 造成运行费用高。
[0004] 乱流洁净室的缺点是由于其送入洁净室内的洁净空气的流场常导致室内部分区域形 成 "涡流"， 使得室内产生的有害物质不能以最小的扩散程度排出， 导致洁净室洁净度动态 检测效果欠佳。
[0005] 目前常用的单向流洁净室是将高效过滤器沿洁净室顶部布满， 使整个洁净室形成了 均匀分布的洁净气流， 大部分污染物随着气流以最短的路径流向回风口。 因而能够达到很高 的洁净度， 一般用于 100级洁净度的环境。 另外， 单向流洁净室采用地板格栅回风系统， 导 致造价昂贵。
[0006] 单向流洁净室的缺点是成本太高， 并且单向流洁净室建造和维修难度较大。
发明内容
[0007] 本发明所要解决的技术问题是提供一种结构简单、 投资少、 能够满足洁净室所需的 洁净度级别要求的辐流洁净室空调送、 回风系统的辐流送风通道装置。 [0008] 本发明解决其技术问题所采用的技术方案：
一种辐流洁净室空调送、 回风系统的辐流送风通道装置， 其特征在于由洁净室顶板、 静压箱 式送风通道、 均压隔板、 弧形辐流罩、 阻尼层和高效过滤器组组成； 在所述弧形辐流罩上均 布有出流孔， 所述阻尼层贴于弧形辐流罩的内壁上， 所述阻尼层为尼龙材质制成的过滤层； 在所述均压隔板上均布有均压孔， 所述静压箱式送风通道、 均压隔板、 弧形辐流罩以及洁净 室顶板之间通过连接件密封连接在一起， 所述静压箱式送风通道和弧形辐流罩分别位于洁净 室顶板的上方和下方， 静压箱式送风通道与均压隔板之间的腔室为通风通道； 均压隔板与弧 形辐流罩之间的腔室为均压箱； 所述弧形辐流罩沿洁净室顶部较长的长度方向中部位置或者 沿较长的长度方向侧壁顶部位置通长布置； 所述静压箱式送风通道的一端通过高效过滤器组 与空调送风管道相连通， 所述空调送风管道与安装在空调出风口的空调出风口静压箱相连 通。
[0009] 位于所述均压隔板上的均压孔为圆孔或条形孔， 当为条形孔时， 所述均压隔板由 2 块以上组成， 相邻两块均压隔板之间的间隙可调。
[0010] 位于弧形辐流罩上的出流孔为圆孔或条形孔。
[0011] 所述均压孔的面积 S 按等截面均匀送风管道理论进行计算， 计算公式如下： s - Q
3600 x 1.29 ·^
式中 Q为所述通风通道送风量， 单位为 m3/s;
μ为均压孔口处的流量系数；
Pjp为均压孔口处的平均静压值， 单位为 Pa。
[0012] 所述弧形辐流罩为半圆形辐流罩。
[0013] 所述弧形辐流罩的曲率半径由洁净室所需通风量决定， 所述弧形辐流罩的曲率半 径、 出流孔的大小以及开孔密度三者结合决定弧形辐流罩出风孔的风速 V, 所述风速 V的范 围为： 0.3m/s<V<0.5m/s。
[0014] 所述辐流通风通道装置的工作原理：
辐流洁净室因为其出流孔送出的气流的流场不是单一的方向， 而是沿弧形辐流罩径向方向均 布， 其净化机理既不同于乱流洁净室的稀释掺混作用， 也不同于单向流洁净室气流流线平行 的活塞作用， 它使用较少的高效过滤器组， 在洁净室室内形成置换流的流场， 它采用了新的 出流孔形式及气流组织方案， 用尽可能少的洁净空气以满足洁净室所需的洁净度级别。
[0015] 静压箱式送风通道与均压隔板之间的空腔形成通风通道。 由于该通风通道的截面积
替换页 （细则第 26条) 大于空调送风管道的截面积， 空气流入该通风通道后流速降低， 气流的部分动压能转化为静 压能， 使空气均匀地通过均压隔板与弧形辐流罩之间的腔室。 由于弧形辐流罩内壁上设有阻 尼层， 使得送风进一步得到均匀再分配， 使通过弧形辐流罩出流更加均匀。 同理， 由于阻尼 层对送风气流的阻力作用， 又使均压隔板的送风均匀性得到了进一步保证。
[0016] 本发明的有益效果如下：
( 1 ) 本发明采用 "辐流送风" 的通风系统， 使用静压箱式送风通道， 省去了风量调节阀， 降低了送、 回风系统的运行阻力。
[0017] ( 2 ) 本发明的静压箱式送风通道与回风口的布置， 使洁净室内的有害悬浮粒子在 洁净室内扩散速度达到最小， 使洁净室内的洁净度达到较高的级别。
[0018] ( 3 ) 本发明与单向流洁净室比较， 使用的高效过滤器组较少， 使洁净室建设投资 少， 并且运行节能， 维修方便。
附图说明
[0019] 图 1为图 2的仰视图。
[0020] 图 2为本发明的结构示意图 （即图 5的 I处放大图）。
[0021] 图 3为图 2的俯视图。
[0022] 图 4为本发明用于辐流洁净室的使用状态图 （即为图 5的 B-B剖视图）。
[0023] 图 5为图 4的 A-A剖视图。
[0024] 在图 1~5中， 1静压箱式送风风道、 2均压隔板、 3洁净室顶板、 4阻尼层、 5弧形辐 流罩、 6 截面形状为倒 " T "形的连接件、 7 截面形状为 "U"形的连接件、 8 高效过滤器 组、 9空调回风管道、 10空调送风管道、 11空调出风口静压箱、 12空调风机、 13空调机组 初、 中效过滤器、 14 空调回风口静压箱、 15 空调机组、 16 空调新风口过滤器、 17 回风支 管、 18洁净室、 19 回风过滤装置、 20夹层墙式回风风道、 21 夹层墙式回风风道、 22 回风 支管。
具体实施方式
[0025] 由图 1-5 所示的实施例可知， 它由洁净室顶板 3、 静压箱式送风通道 1、 均压隔板
2、 弧形辐流罩 5、 阻尼层 4 和高效过滤器组 8 组成； 在所述弧形辐流罩 5 上均布有出流 孔， 所述阻尼层 4贴于弧形辐流罩 5的内壁上， 所述阻尼层 4为尼龙材质制成的过滤层； 在 所述均压隔板 2上均布有均压孔， 所述静压箱式送风通道 1、 均压隔板 2、 弧形辐流罩 5 以 及洁净室顶板 3之间通过连接件密封连接在一起， 所述静压箱式送风通道 1和弧形辐流罩 5 分别位于洁净室顶板 3的上方和下方， 静压箱式送风通道 1与均压隔板 2之间的腔室为通风 通道； 均压隔板 2与弧形辐流罩 5之间的腔室为均压箱；
在本实施例中， 所述均压隔板 2位于弧形辐流罩 5的顶面上； 所述静压箱式送风通道 1位于 均压隔板 2的上方， 所述静压箱式送风通道 1、 均压隔板 2和弧形辐流罩 5三者由截面形状 为倒 "T"型连接件 6和截面形状为 "U"形的连接件 7固定在洁净室顶板 3上； 所述弧形 辐流罩 5沿洁净室 18顶部较长的长度方向中部位置布置 （见图 4)， 也可以沿较长的长度方 向侧壁顶部位置通长布置， 这时， 回风口位于弧形辐流罩 5的斜对角方向的静洁净室侧壁底 部； 所述静压箱式送风通道 1 的一端通过高效过滤器组 8与空调送风管道 10相连通， 所述 空调送风管道 10与安装在空调出风口的空调出风口静压箱 11相连通。
[0026] 位于所述均压隔板 2 上的均压孔为圆孔或条形孔， 当为条形孔时， 所述均压隔板 1 由 2块以上组成， 相邻两块均压隔板 2之间的间隙可调。
[0027] 位于弧形辐流罩 5上的出流孔为圆孔或条形孔。
[0028] 所述均压孔的面积 S 按等截面均匀送风管道理论进行计算， 计算公式如下：
Figure imgf000006_0001
式中 Q为所述通风通道送风量， 单位为 m3/s;
μ为均压孔口处的流量系数；
PjP为均压孔口处的平均静压值， 单位为 Pa。
[0029] 所述弧形福流罩 5为半圆形辐流罩。
[0030] 所述弧形辐流罩 5 的曲率半径由洁净室所需通风量决定， 所述弧形辐流罩 5 的曲率 半径、 出流孔的大小以及开孔密度三者结合决定弧形辐流罩出风孔的风速 v， 所述风速 V的 范围为： 0.3m/s<V<0.5m/s。
4
替换页 （细则第 26条)

Claims

权 利 要 求 书
1. 一种辐流洁净室空调送、 回风系统的辐流送风通道装置， 其特征在于由洁净室顶板 (3)、 静压箱式送风通道 （1)、 均压隔板 （2)、 弧形辐流罩 （5)、 阻尼层 （4) 和高效过滤 器组 （8) 组成； 在所述弧形辐流罩 （5) 上均布有出流孔， 所述阻尼层 （4) 贴于弧形辐流 罩 （5) 的内壁上， 所述阻尼层 （4) 为尼龙材质制成的过滤层； 在所述均压隔板 （2) 上均 布有均压孔， 所述静压箱式送风通道 （1)、 均压隔板 （2)、 弧形辐流罩 （5) 以及洁净室顶 板 （3) 之间通过连接件密封连接在一起， 所述静压箱式送风通道 （1) 和弧形辐流罩 （5) 分别位于洁净室顶板 （3) 的上方和下方， 静压箱式送风通道 （1) 与均压隔板 （2) 之间的 腔室为通风通道； 均压隔板 （2) 与弧形辐流罩 （5) 之间的腔室为均压箱； 所述弧形辐流罩 (5) 沿洁净室 （18) 顶部较长的长度方向中部位置或者沿较长的长度方向侧壁顶部位置通 长布置； 所述静压箱式送风通道 （1) 的一端通过高效过滤器组 （8) 与空调送风管道 （10) 相连通， 所述空调送风管道 （10) 与安装在空调出风口的空调出风口静压箱 （11) 相连通。
2. 根据权利要求 1所述的辐流洁净室空调送、 回风系统的辐流送风通道装置， 其特征在于 位于所述均压隔板 （2) 上的均压孔为圆孔或条形孔， 当为条形孔时， 所述均压隔板 （2) 由 2块以上组成， 相邻两块均压隔板 （2) 之间的间隙可调。
3. 根据权利要求 1或 2所述的辐流洁净室空调送、 回风系统的辐流送风通道装置， 其特征 在于位于弧形辐流罩 （5) 上的出流孔为圆孔或条形孔。
4. 根据权利要求 3所述的辐流洁净室空调送、 回风系统的辐流送风通道装置， 其特征在于 所述均压孔的面积 S按等截面均匀送风管道理论进行计算， 计算公式如下：
3600 1^^
式中 Q为所述通风通道送风量， 单位为 m3/s;
μ为均压孔口处的流量系数；
PjP为均压孔口处的平均静压值， 单位为 Pa。
5. 根据权利要求 4所述的辐流洁净室空调送、 回风系统的辐流送风通道装置， 其特征在于 所述弧形辐流罩 （5) 为半圆形辐流罩。
6. 根据权利要求 5所述的辐流洁净室空调送、 回风系统的辐流送风通道装置， 其特征在于 所述弧形辐流罩 （5) 的曲率半径由洁净室所需通风量决定， 所述弧形辐流罩 （5) 的曲率半 径、 出流孔的大小以及开孔密度三者结合决定弧形辐流罩出流孔的风速 v， 所述风速 V的范 围为： 0.3m/s<V<0.5m/s。
5
替换页 （细则第 26条)
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