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CN100533094C - Annular back-flow vertical wind tunnel, and its back-flow method - Google Patents

Annular back-flow vertical wind tunnel, and its back-flow method Download PDF

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CN100533094C
CN100533094C CN 200610083788 CN200610083788A CN100533094C CN 100533094 C CN100533094 C CN 100533094C CN 200610083788 CN200610083788 CN 200610083788 CN 200610083788 A CN200610083788 A CN 200610083788A CN 100533094 C CN100533094 C CN 100533094C
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back
flow
annular
tunnel
vertical
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CN 200610083788
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CN1851435A (en )
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刘晓萌
刘福长
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刘晓萌
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Abstract

一种环形回流垂直风洞及其回流方法,本发明的环形回流垂直风洞包括动力系统和工作洞体,其中所述工作洞体包括入口进气端、安定段、收缩段、工作段、以及出口排气端,其特征在于:所述风洞还包括一个罩于所述工作洞体之外的外壳,在所述工作洞体和所述外壳之间有一个环形通道,所述动力系统将空气从所述工作洞体入口进气端吹入,穿过所述工作洞体并从所述工作洞体出口排气端吹出,经所述环形通道回流至所述工作洞体入口进气端,本发明的环形回流垂直风洞及其回流方法是通过在外壳和工作洞体之间形成环形回流工作的,动力要求低,设计、施工简单,噪音尤其是洞外噪音低,可以全天候使用,经济、安全、舒适。 An endless reflux and refluxed for vertical wind tunnel method, the present invention is refluxed annular vertical wind tunnel work and power system comprising a cave, wherein the working body comprises an inlet hole inlet end, stable section, shrink section, the working section, and an exhaust outlet end, characterized in that: said air duct further comprises a cover to the housing body outside the working hole, an annular passage between the working body and the housing hole, the power system from the working air inlet hole is blown into the inlet end, through the working body and the hole blown from the outlet end of the exhaust hole working body, through the annular passage to reflux the working fluid inlet hole inlet end , the present invention is refluxed annular vertical wind tunnel and is refluxed by reflux in an annular housing between the work and the work of the cave, low power requirements, simple design and construction, especially low-noise noise outside the hole, it can be used around the clock, economic, safe, and comfortable.

Description

环形回流垂直风洞及其回流方法 Reflux and refluxed annular vertical wind tunnel method

技术领域 FIELD

本发明涉及用于跳伞训练及飞人运动的垂直风洞,尤其涉及一种环形回流垂直风洞及其回流方法。 The present invention relates to a vertical wind tunnel for skydiving training exercise trapeze and more particularly to a vertical wind tunnel, and an annular reflux reflow method.

背景技术 Background technique

航空领域的一种特殊地面实验设备一垂直风洞,早在上世纪以美国为首的发达国家就已经建成多座。 A special ground test equipment in the field of aviation a vertical wind tunnel, back in the US-led developed countries had already built more than a dozen. 近年来,为了进行跳伞员和跳伞运动员在下落阶段身体控制和艺术表演的训练,以及一种时尚体育休闲运动——飞人运动的兴起,航空垂直风洞已演化和发展成为一种新的民用为主的飞人运动垂直风洞。 In recent years, in order to carry out skydiver parachuting athletes in training and body control and falling stage art performances, as well as a fashionable sports and leisure sports - the rise of the movement trapeze, aerial vertical wind tunnel has evolved and developed into a new civil to trapeze main motion vertical wind tunnel. 垂直风洞飞行舱内的高速气流可使跳伞员和跳伞运动员得到高效优质的训练,也可以使飞行爱好者获得翱翔天空的乐趣。 Vertical wind tunnel flight chamber of the high-speed air stream can parachutist skydiver and get efficient and high quality training, flight enthusiasts can also make fun of flying in the sky. 到目前为止,欧美各国已建成多座这种飞行舱设备。 So far, the United States and Europe have been built more than a dozen such flight deck equipment. 美国建成的数目最多,并已经获得广 The United States built the largest number, and has received wide

泛应用。 Pan applications. 比如美国专利6083110号公开了一种垂直风洞训练系统,该风洞为开路式(即烟囱式),依靠置于风洞上部的几个风扇作为其动力系统,通过这几个风扇的作用,将风洞内的工作气体排到外界环境中,风洞内的气压将低于外界大气压,从而使外界空气通过其下部的空气入口进入风洞,实现工作气体的循环。 For example U.S. Patent No. 6,083,110 discloses a vertical wind tunnel training system, the tunnel is an open path (i.e., the chimney), rely on several tunnel fan placed on top as a dynamic system, by the action of these fans, the working gas discharged into the external environment in the tunnel, the tunnel will be lower than the air pressure in the external atmospheric pressure, so that the outside air into the air inlet tunnel through a lower portion thereof, a recirculating working implement. 美国专利US2006/0025227A1 公开了另一种垂直风洞系统方案,该风洞为一种回流式风洞,但其回流方法为管道式单回流或双回流,通过置于上部的风扇系统和复杂的管路系统在飞行舱内产生高速气流并实现回流。 U.S. Patent US2006 / 0025227A1 discloses a vertical wind tunnel system to another embodiment, the tunnel as a wind tunnel at reflux, but as a reflow method or a single reflux type double-pipe reflux by placing the upper portion of the fan system and complex high-speed airflow is generated in the piping system and the flight chamber to achieve reflux.

但是,现有的垂直风洞存在以下缺点:多采用开路式(即烟囱式),虽然结构简单, 但是高度大、噪音高,并且受外界天气影响较大,制约了其使用;现有的管道式回流风洞回流管路设计、施工都很复杂;并且风洞内部空气与外界大气交换很少,不易散热, 使风洞工作一段时间后,内部回流空气温度过高,并且不新鲜,易使人感到不适,不宜长时间工作。 However, existing vertical wind tunnel has the following disadvantages: use more open path (i.e., the chimney), although the structure is simple, but highly large, noisy, and influenced by outside weather, restricts their use; existing pipeline reflux return line tunnel design and construction are complex; tunnel inside air and the outside air exchange with rare, difficult to heat, wind tunnel working for some time, the internal return air temperature is too high, and not new, easy to make people feel uncomfortable, it should not work for a long time. 目前,发达国家以及我国正在大力研制新型、经济、安全、舒适的垂直风洞,以便更好的满足训练和娱乐方面的要求。 At present, China is vigorously developed countries and the development of new, economical, safe and comfortable vertical wind tunnel, in order to better meet the requirements of training and entertainment.

发明内容 SUMMARY

本发明的目的是提供一种功率需求低,噪音较低,安全、舒适,可适应各种气象条 Object of the present invention is to provide a low power requirements, low noise, safety, comfort, can be adapted to a variety of meteorological conditions

3件的环形回流垂直风洞及其回流方法。 3 refluxed annular vertical wind tunnel and reflow method.

为实现本发明目的,而提出以下技术方案: For purposes of this invention, the following technical solutions proposed:

一种环形回流垂直风洞,包括动力系统和工作洞体,其中所述工作洞体包括入口进气端、安定段、收縮段、工作段、以及出口排气端,其特征在于:所述风洞还包括一个罩于所述工作洞体之外的外壳,在所述工作洞体和所述外壳之间有一个环形通道,所述动力系统将空气从所述工作洞体入口进气端吹入,穿过所述工作洞体并从所述工作洞体出口排气端吹出,经所述环形通道回流至所述工作洞体入口进气端。 An endless reflux vertical wind tunnel, and power system comprising a work hole thereof, wherein the working body comprises an inlet hole inlet end, stable section, shrink section, the working section, and an exhaust outlet end, characterized in that: said wind further comprising a hole in the cover to the housing body outside the working hole, an annular passage between the working body and the housing hole, the power system from the working air inlet hole blowing inlet end into, through the working body and the hole blown from the outlet end of the exhaust cave work, the work is returned to the inlet end of inlet holes through said annular passage.

上述环形回流垂直风洞,所述动力系统设于所述工作洞体的入口进气端,所述工作洞体出口排气端设有回流导流器。 Said annular reflux vertical wind tunnel, the entry holes provided in the power system of the working body inlet end, an outlet end of the working exhaust reflux deflector body is provided with holes.

上述环形回流垂直风洞,所述回流导流器为具有中心锥状物的碗状,扣置于所述工作洞体上。 Said annular vertical wind tunnel at reflux, the reflux deflector having a central tapered bowl was, fastener disposed on the working cave.

上述环形回流垂直风洞,所述回流导流器中设有至少一层导流隔板及整流装置。 Said annular vertical wind tunnel at reflux, the reflux separator and the at least one flow deflector is provided rectifying means. 上述环形回流垂直风洞,所述外壳上部设有至少一个排气窗,下部设有至少一个进气窗,在所述外壳和所述工作洞体之间且在排气窗下面的位置处设有阻尼网。 Said annular reflux vertical wind tunnel, the upper housing is provided with at least one exhaust window, the lower portion is provided with at least one inlet window, and disposed at a position between the housing and the operating member in an exhaust hole below the window damping network. 上述环形回流垂直风洞,所述工作段横截面为多边形。 Said annular reflux vertical wind tunnel, the working cross-section of polygonal cross section.

上述环形回流垂直风洞,所述外壳和工作洞体至少在工作段处均由透明物质制成或者所述工作洞体内壁至少在工作段处设有电子屏幕或图画。 Said annular reflux vertical wind tunnel, the housing and working at a cave formed by a transparent material or is provided with an inner wall of said hole working or drawing electronic screen at least the working section at least at the working section.

一种环形回流垂直风洞回流方法,用于上述环形回流垂直风洞,风洞工作时,空气从工作洞体入口进气端吹入,穿过工作洞体后从工作洞体出口排气端吹出,空气由工作洞体吹出后通过外壳和工作洞体之间的环形通道实现回流。 An endless vertical wind tunnel reflow method reflux, refluxed for said annular vertical wind tunnel, wind tunnel work, air is blown from the working fluid inlet hole in the inlet end, the body through the working hole from the working fluid outlet hole discharge end blowing air return flow by the working body after blow holes through the annular passage between the housing and the work hole thereof.

上述环形回流垂直风洞回流方法,在空气回流过程中通过设于所述工作洞体的出口排气端的回流导流器进行回流。 Said annular vertical wind tunnel reflux reflow method, the reflow process in air through an outlet provided in the exhaust end of the working cave deflector reflux reflux.

上述环形回流垂直风洞回流方法,在空气回流过程中还通过设于所述工作洞体外壳上部的至少一个排气窗和设于外壳下部的至少一个进气窗,对回流空气进行换气调节。 Said annular vertical wind tunnel reflux reflow method, the air in the reflow process is also provided in the upper body housing through the working window of at least one exhaust hole provided in the lower housing and at least one inlet window, for adjusting the return air ventilating .

本发明的积极效果是:(1)本发明的环形回流垂直风洞是通过在外壳和工作洞体之间形成环形回流工作的,动力要求较开路式低,设计、施工较管道式回流风洞简单,噪音尤其是洞外噪音低,可以全天候使用,经济、安全、舒适。 The positive effect of the invention is: (1) of the present invention, an annular vertical wind tunnel is refluxed by reflux for an annular working between the housing and the work hole thereof, lower power requirements than the open type, design and construction than the ducted tunnel reflux simple, low noise, especially noise outside the cave, all-weather use, economical, safe, and comfortable. (2)本发明的环形回流垂直风洞采用穹形的回流导流器,使气流方向转变180。 Ring (2) of the present invention using a dome-shaped vertical wind tunnel reflux reflux deflector, so that a 180 air flow direction. ,简便的实现了回流,并且降低了能量损失;该导流器为具有中心锥状物的碗状,其中的中心锥状物能够防止涡流的产生,导流器内凹的型面及设置的分流隔板和整流装置可以改善导流,防止出现严重分离。 , To achieve a simple reflux, and reduces the energy loss; the deflector having a central tapered bowl thereof, wherein the central tapered profile was possible to prevent generation of eddy currents, and the concave deflector arranged split spacer and may improve flow rectifying means, to prevent serious separation occurs. (3)本发明的环形回流垂直风洞的外壳上设有进气窗和排气窗,能够保证风洞长时间运行期间空气新鲜,并可使气温控制在合适的温度范围。 An intake and exhaust louver annular window (3) of the present invention, a housing refluxed vertical wind tunnel, the wind tunnel to ensure fresh air during a long operation, and can control the temperature at an appropriate temperature range. 在风洞外壳和工作洞体之间排气窗下面位置处设有阻尼网,可以使网上方气体压强稍大于室外大气压,以利于上方热空气的排出,同时,设置阻尼网也有助于降低回流区的噪音。 Below the window position of the exhaust damper is provided between the net and the working cave tunnel housing, gas pressure can be made slightly larger than the online party outside atmospheric pressure, in order to facilitate the discharge of the hot air above, while a damping network also helps to reduce reflux noise zone. (4)本发明的环形回流垂直风洞垂直的外壳和工作洞体至少在工作段区均由透明物质制成,或者工作洞体内壁至少在工作段处设有电子屏幕或图画,使飞行者能够获得翱翔天空的真实感觉。 Ring (4) of the present invention is refluxed vertical wind tunnel housing and perpendicular to work at least by transparency cave formed in the working section area, or working the inner wall of the hole screen or an electronic drawing at least at the working section of the flyers You can get the real feeling of flying in the sky. 另外,本发明的环形回流垂直风洞的工作段横截面为多边形,便于安装平面玻璃。 Further, the present invention is refluxed annular vertical wind tunnel cross-section of working section is polygonal, flat glass ease of installation.

附图说明 BRIEF DESCRIPTION

图1为本发明的环形回流垂直风洞的结构示意图。 An annular structural diagram of FIG reflux vertical wind tunnel 1 of the present invention. 图2为动力系统风机布置平面示意图。 FIG 2 is a schematic plan view of a power system fan arrangement. 图3为工作段截面示意图。 3 is a cross-sectional schematic view of the working section.

具体实施方式 detailed description

下面结合附图和实施例对本发明作进一步的描述,但应当说明的是,这些实施例仅用于说明本发明的方案,而并不能将本发明的范围局限于此。 In conjunction with the accompanying drawings and the following embodiments of the present invention will be further described, it should be noted that these examples are for illustration of the invention, the scope of the invention can not be limited thereto.

如图1所示,本发明的环形回流垂直风洞具有以下几大部分:下置的动力系统l, As shown in FIG. 1, the present invention is refluxed annular vertical wind tunnel having the following parts: L underlying power system,

外壳2,支架3,工作洞体4,以及回流导流器5。 Housing 2, the holder 3, the work hole 4, 5 and the return flow. 下面分别就这几大部分说明本系统的工作原理。 Here are a few on this most illustrate the working principle of the system.

本实施例中,本发明的动力系统不同于现有风洞的上置式动力系统,而是把动力系统1置于整个垂直风洞的底部,与上置式动力系统相比,这样设计的优点是不仅可以减轻支架3承载的重量及振动,而且可以大大降低安装成本,并且便于设备检修。 Embodiment, the power system of the present invention is mounted on the power system of the present embodiment is different from the conventional wind tunnel, but the entire power system 1 is placed at the bottom of the vertical wind tunnel, as compared with the mounted power systems, the advantage of this design is not only can reduce the weight and vibration of the bearing holder 3, and can greatly reduce installation cost, and ease of equipment maintenance. 如图l 所示,在该实施例中甚至将动力系统1置于地面以下,同时减小了噪音尤其是洞外噪音。 As shown in FIG. L, even in this embodiment the power system 1 is placed below the surface, while reducing the noise, especially noise outside the hole.

如图l所示,本发明的环形回流垂直风洞包括一个外壳2,这使得本发明的风洞的工作洞体4处于外壳2形成的室内,虽然整个风洞系统置于室外大气环境,但不受外界 As shown in FIG. L, the ring of the present invention comprises a housing refluxed vertical wind tunnel 2, which makes the work of the wind tunnel of the present invention the hole 4 formed in the interior of the housing 2, although the entire system is placed outside the tunnel atmosphere, but from outside

环境和气候的影响,可以全天候运行,大大提高了使用效率。 Impact on the environment and climate, all-weather operation, greatly improving efficiency.

支架3设置于外壳2和工作洞体4之间,用于支承外壳2、工作洞体4和回流导流 Holder 3 disposed in the housing between the body 2 and the work hole 4 for supporting the housing 2, the work flow and the return hole 4

器5等结构,由于本发明将动力系统1下置,减轻了支架3承载的重量及振动,对于支架3的强度要求就大大减小,成本就可大幅减低。 5 and other structures, since the present invention is set under the power system 1, reducing the weight and vibration of the bearing bracket 3, the strength required for the stent 3 is greatly reduced, the cost can be greatly reduced.

工作洞体4是风洞的主要部分,空气由工作洞体4的下部进入,从工作洞体4顶部流出,如图l中箭头方向所示,本发明的工作洞体4主要包括安定段42、收縮段43、 工作段44、扩压段45。 4 cave work is the main part of the wind tunnel, the air hole by the working body into the lower portion 4, the top body 4 from the working outflow hole, in a direction indicated by an arrow in Figure l, the work hole 4 of the present invention include diazepam section 42 , constriction 43, work section 44, diffuser 45.

回流导流器5的作用是将从工作洞体4顶部垂直向上流出的空气转变流向,改为垂 Action reflux deflector 5 is converted from the air flow body 4 flows vertically upward work top hole, down to

直向下,从而实现本发明风洞的环形回流。 The vertical, in order to achieve reflux annular tunnel of the present invention. 回流导流器5的形状为倒扣的具有中心锥状 Reflux shape as deflector 5 having a central tapered undercut

物的碗状,其内凹的型面和分流隔板51及整流装置利于气流方向转180°向下,并减少能量损失。 Bowl thereof, which concave molding surface 51 and the separator and split fairing 180 ° turn facilitates the air flow direction down and to reduce energy loss.

以上是本系统工作原理的叙述,下面将结合具体实施例,对本发明进行详细描述。 The above is the principle of the present system is described below in conjunction with specific embodiments of the present invention will be described in detail.

如图1所示,在该实施例中动力系统1被置于地面以下,本实施例的动力系统1包括六组电机系统ll,每组电机系统11包括电机111和风扇112,在地面以下呈与工作洞体4同轴心的环形均匀水平布置,如图2所示。 As shown, in this embodiment, the power system 1 is placed below the surface 1, the power system of the present embodiment comprises a set of six motor system ll, each motor system 11 includes a motor 111 and a fan 112 was below ground 4 uniform horizontal annular body coaxially with the work hole arrangement, as shown in FIG. 每台电机功率为132至220千瓦。 Each motor power of 132-220 kilowatts. 当然,本发明还可以采用其它台数的电机系统,可以根据需要采用灵活多变的各种电机、 风扇组合。 Of course, the present invention may also be employed a number of other stations motor systems, can be employed flexible various motors, fan assembly according to need. 多组小功率电机的设置避免了采用单个大型电机、风扇系统,可以采用380V 的低压电源,方便运行。 A plurality of sets of small power of the motor is provided to avoid using a single large motor, fan system, 380V low voltage power supply may be employed to facilitate the operation. 同时,采用多组小型电机、风扇系统,噪音低,造价低,降低了风洞的总高度,易于制造、安装、维修、更换;并且可以根据风洞使用者的多少及需求,开动不同数量的电机、风扇,因此运行灵活多变,节电潜力大。 Meanwhile, the use of multiple sets of small motors, fan system, low noise, low cost, reducing the overall height of the wind tunnel, ease of manufacture, installation, maintenance, replacement; and may demand and wind tunnel according to the number of users, the number of different actuation motors, fans, so running flexible, large energy-saving potential. 另外很重要的一点是当其中一组电机、风扇突然出现故障时,其它组的电机、风扇仍能够正常工作,从而能够有效地避免安全事故的产生。 Another important point is that when one group of motors, fan sudden failure, motor other groups, fans can still work normally, so as to effectively prevent accidents produced. 另外,电机系统11中电机111通过传动轴带动风扇112转动,可以縮短风扇段长度,并且有利于电机散热,可长时间运转。 Further, rotation of the fan motor 112 to drive system 11 through the motor shaft 111 can be shortened length of the fan, the motor and to facilitate heat dissipation, can be long-term operation.

当本发明的风洞开始工作时,电机lll、风扇112开启,空气进入风机入口进气段121,风机入口进气段121和出口排气段122分别设有拐角导流片113和U4,可以先使垂直向下进入的气流在风扇112的入口处变为水平方向,然后再变为垂直向上平稳流出,从而最大程度的降低了能量损失。 When the wind tunnel of the present invention to work, the motor LLL, fan 112 is turned on, an air inlet into the fan intake section 121, an inlet fan intake section 121 and an outlet 122 are provided with a corner section of the exhaust guide plate 113 and U4, can first down into the vertical air flow at the inlet of the fan 112 is changed to the horizontal direction, and then flows smoothly into the vertically upward, in order to maximize the energy loss is reduced.

如图l所示,本发明的环形回流垂直风洞的动力系统1还包括一个集气段141,集气段141中设计了一个中心锥体1411,所述中心锥体1411由钢或其它材质制成,位于集气段141中心,与工作洞体4同轴心,高度与集气段141相近,顶角角度为45°至60° 。 , The ring of the present invention, a power reflux vertical wind tunnel system shown in Figure l 1 further comprising a plenum sections 141, plenum section 141 is designed in a central cone 1411, 1411 of the central cone from steel or other material is made, the center segment 141 is located in the plenum, the hole 4 coaxial with the working body, and the height of the plenum section 141 similar apex angle of 45 ° to 60 °. 所述中心锥体1411的作用是配合集气段141的外壁使集气段141的横截面随着气流上升而逐渐扩大,从而使来自多个风扇112的出口气流减速,平稳地进入工作洞体4,从而避免了将风扇112出口直接连接到工作洞体4时形成面积的突然扩大,降低了 The central role of cone 1411 is in line with the outer wall of the plenum section 141 causes the cross-sectional plenum section 141 with the expanded stream rises gradually, so that the exit gas stream from the plurality of deceleration of the fan 112, into the work smoothly cave 4, thereby avoiding the fan 112 is connected directly to the outlet 4 is formed sudden expansion cave work area, reduces the

能量损失。 Energy loss.

气流由底部通过集气段141比较平稳地进入工作洞体4的安定段42,在安定段42 还装有的使气流垂直向上的蜂窝器421,所述蜂窝器421的蜂窝格子口径为50至60mm,长度为500至600mm。 Relatively stable air flow from the bottom 141 into the plenum section through the working section 424 cave stability, the stability in the segment 42 is also equipped with a cellular vertically upward gas stream 421, is the cellular grid cell diameter of 50 to 421 60mm, a length of 500 to 600mm.

工作气流进入收縮段43后,为保证进入工作段44的气流均匀、稳定,收縮段43 的侧面为收缩效果良好的流线型,收缩比(收缩比为入口面积与出口面积之比)为2.5 至4.0。 After working airflow into the constriction 43, to ensure access to the working section the gas flow 44 uniformly, a stable contraction side section 43 is good shrinkage effect streamlined, contraction ratio (contraction ratio of the inlet area than outlet area ratio) of 2.5 to 4.0 .

工作段44底部设有安全网440,安全网440能够保证任何情况下工作段44中的人员不会坠入工作段44下方,并且为了避免人员下落时与安全网440相撞而造成伤害, 安全网440需要有足够的强度和适度的弹性。 The bottom of the working section 44 is provided with safety nets 440, 440 to ensure a safety net in any case work does not fall into the lower segment 44 staff working section 44, and in order to avoid a collision with the whereabouts of personnel safety nets and 440 hurt, security network 440 needs to have sufficient strength and appropriate elasticity.

工作段44口径为3至4米,高度为3至6米,内部风速为50至65米/秒。 Working diameter section 44 of 3-4 m, a height of 3-6 m, the internal wind speed 50-65 m / sec. 工作段44分为下工作段441和上工作段442,下工作段441的外壁为直壁,有利于获得稳定的气流。 Work is divided into 44 sections under the working section 441 and section 442 on work, work under section 441 of the outer wall of a straight wall, it is conducive to stable airflow. 上工作段442为小角度扩张段,扩张角度的全角为6。 Upper strand expansion section 442 is a small angle, the angle of the full angle of expansion 6. 至8° ,以补偿壁面上附面层增长(空气粘性在物体表面上所形成的一层低速气体薄层称为附面层或边界层)以及避免飞行人员下坠速度过快。 To 8 °, to compensate for the layer growth boundary wall (gas thin layer of low air viscosity on the surface of an object is referred to as a boundary layer is formed or boundary), and the flight crew to avoid falling too fast. 该上工作段442为主要飞行区,即人员主要在此段进行飞行训练或娱乐。 The working section 442 as the main flight zone, that is the main staff during this flight training or entertainment. 在本实施例中,工作段44以及外壳2与工作段44相对应处横截面为正八边形,如图3所示,与圆形相比,更便于安装玻璃,而且加工成本也大大降低。 In the present embodiment, the operating section 44 and the section 44 of the housing 2 and the working cross-section corresponding to the regular octagon, as shown, compared with a circular shape, easier to install the glass, and greatly reduce the processing costs 3. 当然,在其他实施例中,该横截面也可以其它多边形或者圆形。 Of course, in other embodiments, the cross-section may be other polygonal or circular. 工作段44的侧面设有工作间和停靠区(图中未示),便于工作人员控制以及教练员和飞行者在风洞工作时停靠、 休息。 Working section 44 side and provided with landing zone booth (not shown), as well as to facilitate control of staff who coaches at the wind tunnel and flight stop work, rest. 工作段44和扩压段45交接处设有过渡填块450,将工作段44出口的多边形截面过渡到圆形,以与扩压段45有良好的连接。 Working section 44 and diffuser 45 provided overpack junction block 450, a polygonal cross section of the transition section 44 work to a circular outlet, with the diffuser 45 has a good connection.

在工作段44中,为使飞行者能够获得翱翔天空的真实感觉,本发明的外壳2和工作洞体4与工作段44相对应处均由透明材料如:玻璃、亚克力等制成,外壳2其余部分可以为不透明的材料,如由玻璃钢、金属等制成,工作洞体4其余部分为钢或其它材质—制成。 In the working section 44, to enable the flight flying sky can obtain realistic sensation, the housing 2 of the invention and the working member 4 and the holes corresponding to the working section 44 by a transparent material such as: glass, acrylic or the like, the housing 2 the rest may be an opaque material such as steel, glass, metal or the like, the remainder of the work 4 cave steel or other materials - made. 当然,如果工作洞体内壁至少在工作段处设置电子屏幕或图画,也可以获得相类似的效果。 Of course, if the work the inner wall of the hole or an electron-drawing screen at least at the working section, it is possible to obtain a similar effect.

扩压段45位于工作段44上方,扩压段45的扩散角度(扩散角为扩张壁面间夹角) 为8°至12° ,以尽量减小高度并避免发生气流分离(过小的扩散角度造成扩压段过长, Working section 44 is located above the diffuser 45, diffuser segment 45 of the diffusion angle (angle of diffusion between the wall angle of expansion) is 8 ° to 12 °, to minimize the height and avoid flow separation (too small diffusion angle occurs resulting diffuser is too long,

过大的扩散角使气流脱离壁面,造成流动分离)减小能量损失。 Too large diffusion angle of the gas stream from the wall, resulting in flow separation) to reduce the energy loss.

回流导流器5的作用是将从工作洞体4顶部垂直向上流出的空气转变流向,改为垂直向下,从而实现本发明风洞的环形回流。 Action reflux deflector member 5 is to work from the top of the vertical hole 4 flows upward air flow to change, to vertically downward, thereby achieving the present invention the annular tunnel at reflux. 回流导流器5的形状为倒扣的具有中心锥状物的碗状,其内凹的型面和内置多层分流隔板51及圆台表面形成的孔板52,将最大限度的减少能量的损失,且有利于气流的转向。 Reflux shape deflector 5 is upside down with a central tapered bowl thereof, which concave molding surface and several layers built separator plate 51 and the circular table 52 formed on the surface, to minimize the energy loss, and is conducive to airflow steering. 在本实施例中回流导流器5中的整流装置为圆台表面形成的孔板52,当然,在其它实施例中也可以为其它形式。 Reflux flow rectifying means 5 in the orifice plate 52 of the frustoconical surface is formed in the present embodiment, of course, in other embodiments may also be in other forms. 工作气流沿回流导流器5向下进入位于外壳2和工作洞体4之间的回流段46,然后一路向下被送至风机入口进气段121,这样就完成了工作气流在本发明的风洞中的循环过程。 Working reflux stream along the deflector 5 of the housing 2 and down into the working section between the backflow hole 446, and then is supplied to the fan all the way down the inlet air intake section 121, thus completing the present invention in the working air flow cycle wind tunnel.

另外,为使经过长时间运行后风洞中的工作气体的温度不至于过高,同时确保工作段44中的空气保持新鲜,外壳2上部设有若干个排气窗21 ,下部设有若干个进气窗22。 Further, for the temperature after long running through the wind tunnel of the working gas will not high, while ensuring the working section 44 remains fresh air, the upper housing 2 is provided with a plurality of exhaust window 21, a lower portion provided with a plurality intake window 22. 随时都可根据情况控制进气量,使部分温度升高的工作气体可以通过排气窗21排出风洞系统,在排气窗21下面位置处设有阻尼网211,使阻尼网211上方的气压稍大于外界环境大气压,便于热的工作气体能够适量排出,同时,该网还有助于进一步降低回流段46中的噪音。 The situation at any time can control the intake air amount, so that part of the working gas temperature rise may be discharged through an exhaust system of tunnel window 21, the damping network 211 is provided at a position of the exhaust 21 below the window, the damping net upward pressure 211 slightly greater than ambient atmospheric pressure, the hot gas can facilitate the work of discharging amount, and the network also helps to further reduce noise in the regeneration section 46. 与此同时,在回流段46下方设有多个进气窗22,外界环境中的新鲜空气通过进气窗22随时补充进风洞系统,以确保风洞中的工作气体在长时间运行期间温度适宜,新鲜。 At the same time, under reflux section 46 is provided with a plurality of inlet window 22, the external environment through the fresh air intake window 22 added at any time through the conduit system, to ensure that the temperature of the working gas in the tunnel during the long run appropriate, fresh.

风扇周围及集气段设有消音装置及消音材料(图中未示),确保了本发明的风洞具有低噪音特点。 Around the fan and the plenum section is provided with a muffler device and the silencing material (not shown), the present invention ensures that the wind tunnel having low noise characteristics.

外壳2和工作洞体4之间设有电梯(图中未示),以方便人员出入工作段44。 4 is provided between the housing 2 and the working cave elevator (not shown), to facilitate the work of personnel access section 44.

在其它实施例中,环形回流垂直风洞与上述实施例中的基本相同,但为了安装方便, 下置的动力系统也可以不置于地坑之中,而是置于地面以上;此时,由于空气流动不会受到地坑的影响,且使设备更加简化。 In other embodiments, the annular reflux vertical wind tunnel in the above embodiment is substantially the same, but for ease of installation, the underlying power system may not be placed in the pit, but placed above the ground; At this time, since the air flow is not affected by the pit, and to make the device more simplified.

显然,本发明的上述实施例仅仅是为清楚地说明本发明所作的举例,而并非是对本发明的实施方式的限定。 Obviously, the above-described embodiments of the present invention is merely to clearly illustrate the present invention made by way of example, and not limiting embodiment of the present invention. 对于所属领域的普通技术人员来说,在上述说明的基础上还可以做出其它不同形式的变化或变动。 Those of ordinary skill in the art, on the basis of the above described variations or changes may be made in various other forms. 这里无需也无法对所有的实施方式予以穷举。 It is unnecessary and can not be exhaustive of all embodiments. 而这些属于本发明的精神所引伸出的显而易见的变化或变动仍处于本发明的保护范围之中。 And obvious variations or variations of the present invention, these are the corollary spirit still in the scope of the present invention.

8 8

Claims (10)

1、一种环形回流垂直风洞,包括动力系统和工作洞体,其特征在于:其中所述工作洞体包括入口进气端、使气流垂直向上的安定段、侧壁逐渐向上收缩的收缩段、工作段、以及出口排气端,所述工作段包括侧壁为直壁的下工作段和侧壁向上小角度扩张的上工作段,所述扩张角度的全角为6°至8°,所述风洞还包括一个罩于所述工作洞体之外的外壳,在所述工作洞体和所述外壳之间有一个环形通道,所述动力系统将空气从所述工作洞体入口进气端吹入,穿过所述工作洞体并从所述工作洞体出口排气端吹出,经所述环形通道回流至所述工作洞体入口进气端。 1, a toroidal vertical wind tunnel at reflux, the system comprising power and work hole thereof, wherein: wherein the working body comprises an inlet hole inlet end, the flow of air vertically upward stable section, the side wall tapers upwardly converging section , working section, and an exhaust outlet end, said sidewall comprising a working section to the working section and the lower straight walled sidewall small angle upwardly expanding working section, the spread angle of the full angle of 6 ° to 8 °, the said tunnel further comprises a cover to the housing body outside the working hole, an annular passage between the working body and the housing hole, the power system from the working air inlet of the intake hole end of the blowing, through the working body and the hole blown from the outlet end of the exhaust cave work, the work is returned to the inlet end of inlet holes through said annular passage.
2、 根据权利要求1所述的环形回流垂直风洞,其特征在于:所述动力系统设于所述工作洞体的入口进气端,所述工作洞体出口排气端设有回流导流器。 2, the annular according to claim 1, reflux vertical wind tunnel, characterized in that: said power system is provided in the inlet end of the inlet hole of the working body, the outlet end of the exhaust gas reflux flow guide body is provided with working holes device.
3、 根据权利要求2所述的环形回流垂直风洞,其特征在于:所述回流导流器为具有中心锥状物的碗状,扣置于所述工作洞体上。 3, the annular according to claim 2, reflux vertical wind tunnel, characterized in that: said return deflector is tapered bowl having a center thereof, disposed on the operating button cave.
4、 根据权利要求3所述的环形回流垂直风洞,其特征在于:所述回流导流器中设有至少一层导流隔板及整流装置。 4, according to claim 3, said annular reflux vertical wind tunnel, characterized in that: the return flow vessel provided with at least one baffle separator and the rectifying means.
5、 根据权利要求l、 2或3所述的环形回流垂直风洞,其特征在于:所述外壳上部设有至少一个排气窗,下部设有至少一个进气窗,在所述外壳和所述工作洞体之间且在排气窗下面的位置处设有阻尼网。 5, according to claim L, 2 or 3 ring reflux vertical wind tunnel, characterized in that: said upper housing is provided with at least one exhaust window, the lower portion is provided with at least one inlet window, in the housing and the and a damping network is provided at a position below the window of the exhaust gas between said working cave.
6、 根据权利要求l、 2或3所述的环形回流垂直风洞,其特征在于:所述工作段横截面为多边形。 6, according to claim L, 2 or 3 ring reflux vertical wind tunnel, characterized in that: said operating section is polygonal cross-section.
7、 根据权利要求l、 2或3所述的环形回流垂直风洞,其特征在于:所述外壳和工作洞体至少在工作段处均由透明物质制成或者所述工作洞体内壁至少在工作段处设有电子屏幕或图画。 7, according to claim L, 2 or 3 ring reflux vertical wind tunnel, characterized in that: the working section of the housing and at least in the working cave formed by a transparent substance or at least an inner wall of the hole in the work working segment at an electronic screen or picture.
8、 一种环形回流垂直风洞回流方法,用于如权利要求l所述的风洞,风洞工作时,空气从工作洞体入口进气端吹入,穿过工作洞体后从工作洞体出口排气端吹出,其特征在于:空气由工作洞体吹出后通过外壳和工作洞体之间的环形通道实现回流。 8. A vertical wind tunnel annular reflux reflow method, as claimed in claim for claim l tunnel, wind tunnel work, the air blown from the inlet end of the inlet hole in the working body, after passing through the work from the work hole cave the outlet end of the exhaust gas blown body, comprising: an air return flow by the working body after blow holes through the annular passage between the housing and the work hole thereof.
9、 根据权利要求8所述的方法,其特征在于:在空气回流过程中通过设于所述工作洞体的出口排气端的回流导流器进行回流。 9. The method of claim 8, wherein: the air in the reflow process by setting the exhaust outlet end of the working cave deflector reflux reflux.
10、 根据权利要求8或9所述的方法,其特征在于:在空气回流过程中还通过设于所述工作洞体外壳上部的至少一个排气窗和设于外壳下部的至少一个进气窗,对回流空气进行换气调节。 10. A method according to claim 8 or claim 9, wherein: the air through the reflow process is also provided in the upper portion of the housing of the working window and at least one exhaust hole provided in the lower housing at least one intake louver , adjustment of the return air ventilated.
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US4578037A (en) 1981-10-20 1986-03-25 Alexander Macangus Skydiving simulator
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