阅读说明：本技术 一种空气引射装置 (A kind of air ejection device ) 是由 蒋超 王田 于 2019-08-15 设计创作，主要内容包括：本发明公开了一种空气引射装置,包括,空气入口(1),引射管(2),喷管(3)和空气出口(4),空气入口(1)为一条沿着空气流入方向截面逐渐收窄的通道；引射管(2)沿着空气入口(1)外轮廓与空气入口(1)呈环绕状连接；喷管(3)的气流出口端沿着空气入口(1)内轮廓周向交错布置,喷管(3)的气流入口端与引射管(2)连通；空气出口(4)与空气入口(1)的末端连接,且空气出口(4)为等截面的平直管道。本发明用于使用高温、高压气体引射空气,被引射的空气可作为冷源供给设备散热使用。本发明的喷管、流道布局更加合理,能有效的提升引射效果。(The invention discloses a kind of air ejection devices, including, air intake (1), ejector pipe (2), jet pipe (3) and air outlet slit (4), air intake (1) are a channel along air inflow direction truncated tapered；Ejector pipe (2) is in connect around shape with air intake (1) along air intake (1) outer profile；The airflow outlet end of jet pipe (3) is connected to along the circumferentially staggered arrangement of air intake (1) Internal periphery, the air flow inlet end of jet pipe (3) with ejector pipe (2)；Air outlet slit (4) is connect with the end of air intake (1), and air outlet slit (4) is prismatic flat tube.The present invention is used to use high temperature, high pressure gas injection air, can be used as the heat dissipation of cold source supply arrangement by the air of injection and uses.Jet pipe of the invention, runner layout are more reasonable, can effectively promote injection effect.)

1. a kind of air ejection device, it is characterised in that: including,

Air intake (1), the air intake (1) are a channel along air inflow direction truncated tapered；

Ejector pipe (2), the ejector pipe (2) are in connect around shape with air intake (1) along air intake (1) outer profile；

Jet pipe (3), the airflow outlet end of the jet pipe (3) is along the circumferentially staggered arrangement of air intake (1) Internal periphery, jet pipe (3) Air flow inlet end be connected to ejector pipe (2)；

Air outlet slit (4), the air outlet slit (4) connect with the end of air intake (1), and air outlet slit (4) is cross-section Flat tube.

2. a kind of air ejection device according to claim 1, it is characterised in that: air intake (1) periphery is upward There is a C-channel mouth, the ejector pipe (2) is C-shaped and matches with C-channel mouth.

3. a kind of air ejection device according to claim 1, it is characterised in that: set on ejector pipe (2) inner peripheral surface It is equipped with the connecting hole for jet pipe (3), and connecting hole is connect by location structure with the air flow inlet end of jet pipe (2).

4. a kind of air ejection device according to claim 3, it is characterised in that: the location structure includes being located at and connecting The notch for connecing bore dia direction both ends and being connected to connecting hole, and positioned at jet pipe (2) air flow inlet end and point-blank Two pieces of protrusions.

5. a kind of air ejection device according to claim 3, it is characterised in that: the connecting hole arranged for interval is in injection On the inner peripheral surface for managing (2), including multiple upper connecting holes and lower connecting hole, and upper connecting hole and lower connecting hole interlaced arrangement.

6. a kind of air ejection device according to claim 1, it is characterised in that: jet pipe (2) the air flow inlet section Normal direction it is vertical with air stream outlet section normal direction.

7. a kind of air ejection device according to claim 1, it is characterised in that: the airflow outlet end of the jet pipe (2) Section is less than air flow inlet end section.

8. a kind of air ejection device according to claim 1, it is characterised in that: the air intake (1), ejector pipe (2), jet pipe (3) and air outlet slit (4) welding.

Technical field

The present invention relates to a kind of designs of the structure of air ejection device, belong to emitter construction design field.

Background technique

Aircraft when needing draws ambient air as cold source to be equipment cooling, was often required to use and is drawn in the ground stage Emitter.It is limited to installation space limitation, the injector air outlet slit segment length on aircraft is shorter, causes air-flow that cannot mix well It closes；And when injector there are multiple jet pipes, it is easy between multiply jet flow, between jet flow and runner wall surface by Bernoulli effect shadow It rings, further influences the mixing of air-flow, it is final to influence injection effect.

Summary of the invention

The object of the present invention is to overcome the shortcomings of induction apparatus in the prior art, a kind of preferable air of injection effect is provided Induction apparatus structural design scheme.

To achieve the goals above, the invention adopts the following technical scheme:

A kind of air ejection device, including,

Air intake, the air intake are a channel along air inflow direction truncated tapered；

Ejector pipe, the ejector pipe are in connect around shape with air intake along air intake outer profile；

Jet pipe, along the circumferentially staggered arrangement of air intake Internal periphery, the gas of jet pipe flows into the airflow outlet end of the jet pipe Mouth end is connected to ejector pipe；

The end of air outlet slit, the air outlet slit and air intake connects, and air outlet slit is prismatic straight pipe Road.

Further, there is a C-channel mouth in the air intake periphery upwards, the ejector pipe it is C-shaped and with C-channel mouth Match.

Further, the connecting hole for jet pipe is provided on the ejector pipe inner peripheral surface, and connecting hole passes through location structure It is connect with the air flow inlet end of jet pipe.

Further, the location structure includes, positioned at connecting hole diametrical direction both ends and the notch that is connected to connecting hole, with And two pieces of protrusions positioned at nozzle gas flow arrival end and point-blank.

Further, the connecting hole arranged for interval is on the inner peripheral surface of ejector pipe, including multiple upper connecting holes and lower connection Hole, and upper connecting hole and lower connecting hole interlaced arrangement.

Further, the normal direction of the nozzle gas flow entrance section is vertical with air stream outlet section normal direction.

Further, the air stream outlet end section of the jet pipe is less than air flow inlet end section.

Further, the air intake, ejector pipe, jet pipe and air outlet slit welding.

The present invention is used to use high temperature, high pressure gas injection air, can be used as cold source supply arrangement by the air of injection and dissipates Heat uses.Compared with prior art, the relative position between jet pipe size of the invention, jet pipe is carefully calculated and is verified, The influence of Bernoulli effect between jet flow can be reduced, is preferably mixed with by injection air, it is effective to promote injection effect.

Detailed description of the invention

Fig. 1 is structural schematic diagram of the invention；

Fig. 2 is air inlet structure figure of the invention；

Fig. 3 is injection tube structure figure of the invention；

Fig. 4, Fig. 4-1 and Fig. 4-2 are nozzle structure figures of the invention；

Fig. 5 and Fig. 5-1 is air outlet arrangement figure of the invention；

Fig. 6 is side view of the invention；

Fig. 7 is the schematic diagram of air ejection device；

In figure: 1. air intakes, 2. ejector pipes, 3. jet pipes, 4. air outlet slits.

Specific embodiment

The present invention is further illustrated in the following with reference to the drawings and specific embodiments, but not that should not be interpreted as the present invention with regard to this The range of the theme is only limitted to embodiment below, without departing from the idea case in the present invention described above, all according to ability Various modifications, replacement and the change that domain ordinary technical knowledge and customary means are made, are included within the scope of the present invention.

In the present embodiment, air ejection device includes gradually narrowed air intake 1, the ejector pipe around air intake 1 2, jet pipe 3, the straight air outlet slit 4 for being interspersed and being connected to ejector pipe 2 along week.The all constituents of induction apparatus are logical It crosses and is welded together；Ejector pipe 2 and jet pipe 3 shown in Fig. 3, Fig. 4, Fig. 4-1 and Fig. 4-2, rigging position include positioning Structure, the two assemble and are welded as entirety；Air intake 1 shown in air outlet slit 4 shown in Fig. 5 and Fig. 5-1 and Fig. 2, shown in Fig. 3 Ejector pipe 2 passes through welded connecting.

As shown in Figure 1, Figure 2 and Fig. 7, air intake 1 are the channel of a truncated tapered, pass through sky by the surrounding air of injection Gas entrance 1 enters induction apparatus, is provided with a C-channel mouth as the installation site assembled with ejector pipe 2 on air intake 1.

As shown in Fig. 3, Fig. 2 and Fig. 6, ejector pipe 2 is the pipeline that shape is c-type, convenient for the C-channel on air intake 1 Mouth assembly；2 medial surface of ejector pipe circumferentially opens connecting hole for connecting with jet pipe 3, and connecting hole includes location structure, i.e. two positions Notch in connecting hole diameter line both ends, notch shape and the location structure shape of jet pipe 3 match, and play positioning action, draw It penetrates pipe 2 and passes through connecting hole and the assembly of jet pipe 3 and welded seal；

Such as Fig. 4, Fig. 4-1 and Fig. 4-2, jet pipe 3 is the quadrature tube of arc-shaped transition, the normal direction and air-flow of air stream outlet end section The normal direction of entrance end section is vertical, and there is a pair of square protruding location structure for being distributed in straight line both ends in the root of jet pipe 3, with injection Pipe 2 can realize high assembly precision when assembling, to accurately control the injection direction of air-flow in jet pipe 3；Such as Fig. 1 and Fig. 7, jet pipe 3 points are a series of spaced upper jet pipes, and are located at upper jet pipe lower section and spaced lower jet pipe, upper jet pipe and lower spray The airflow outlet end of pipe is in interlaced arrangement in air intake 1；Interval phase as the scheme in the present embodiment, between upper jet pipe Deng, and the interval is equal to the interval between lower jet pipe, the vertical range of upper jet pipe spout to lower jet pipe spout is sprayed equal to upper jet pipe Mouth arrives the distance of the distance and lower jet pipe spout of 4 straight side walls of air outlet slit to 4 straight side walls of air outlet slit, upper jet pipe spout And lower jet pipe spout to 4 curved wall of air outlet slit distance be less than adjacent upper jet pipe spout (or lower jet pipe spout) between away from From.

Such as Fig. 5 and Fig. 5-1, air outlet slit 4 is a cross-section flat tube, is connect with air intake 1, playing makes high temperature height Calm the anger body with by the well-mixed purpose of injection air.

The present invention can overcome on aircraft because injector air outlet slit segment length is shorter, cause air-flow that cannot mix well The problem of；It further also can solve when injector has multiple jet pipes, be easy between multiply jet flow, between jet flow and runner wall surface The problem of being influenced by Bernoulli effect.