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CN109723569A - Shearing Rectangular Nozzle Setup for Studying Plasma-Enhanced Jet Blending - Google Patents

Shearing Rectangular Nozzle Setup for Studying Plasma-Enhanced Jet Blending Download PDF

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Publication number
CN109723569A
CN109723569A CN201811590461.3A CN201811590461A CN109723569A CN 109723569 A CN109723569 A CN 109723569A CN 201811590461 A CN201811590461 A CN 201811590461A CN 109723569 A CN109723569 A CN 109723569A
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China
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nozzle
end cover
outer nozzle
inner nozzle
wall
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CN109723569B (en
Inventor
聂万胜
陈庆亚
车学科
周思引
苏凌宇
陈川
郑体凯
李亮
候志勇
王海青
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Peoples Liberation Army Strategic Support Force Aerospace Engineering University
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Peoples Liberation Army Strategic Support Force Aerospace Engineering University
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Abstract

本发明涉及一种剪切式矩形喷嘴装置,应用于等离子体增强射流掺混的实验研究,属于等离子体流动控制技术领域。所述喷嘴装置包括内喷嘴、外喷嘴和集气室。在所述集气室由前端盖、后端盖和中间隔离板装配而成。所述内喷嘴包括一个内喷嘴支架和两个内喷嘴壁板,所述内喷嘴支架固定在所述中间隔离板上,两个内喷嘴壁板均固定在内喷嘴支架上。所述外喷嘴由外喷嘴上部分和外喷嘴下部分组成,外喷嘴固定在所述前端盖上。本发明能够实现等离子体激励器的敷设和放电,开展等离子体增强射流掺混研究,具备多种参数调节功能。同时本申请的装置结构紧凑、零件加工简单、拆卸装配方便,具有很高的可靠性。

The invention relates to a shearing type rectangular nozzle device, which is applied to the experimental research of plasma-enhanced jet mixing, and belongs to the technical field of plasma flow control. The nozzle arrangement includes an inner nozzle, an outer nozzle and a plenum. The gas collection chamber is assembled from a front end cover, a rear end cover and an intermediate isolation plate. The inner nozzle includes an inner nozzle bracket and two inner nozzle wall plates, the inner nozzle bracket is fixed on the middle partition plate, and the two inner nozzle wall plates are both fixed on the inner nozzle bracket. The outer nozzle is composed of an upper part of the outer nozzle and a lower part of the outer nozzle, and the outer nozzle is fixed on the front end cover. The invention can realize the laying and discharge of the plasma exciter, carry out the research on the plasma-enhanced jet mixing, and has various parameter adjustment functions. At the same time, the device of the present application has compact structure, simple parts processing, convenient disassembly and assembly, and high reliability.

Description

For studying the shearing rectangle nozzle device of plasma enhancing jet stream blending
Technical field
The present invention relates to a kind of shearing rectangle nozzle device, the experiment applied to the blending of plasma enhancing jet stream is ground Study carefully, belongs to plasma flow control technical field.
Background technique
Jet stream has important answer in aerospace flight vehicle combustion chamber and exhaust outlet, chemical reactor and cooling system With blending, developing characteristics and the improvement noise properties for improving jet stream have very important significance.It is put based on surface dielectric barrier The plasma flow control technology of electricity is to improve the effective means of jet stream blending degree.Driver is as shown in Figure 1, by exposure electricity Pole and implant electrode two parts composition, centre are located at the upper side and lower side of insulating medium layer by insulating medium layer barrier.Two Apply high-frequency and high-voltage excitation between electrode, sufficiently large electric-force gradient can be generated above implant electrode dielectric layer, keeps air electric From plasma, charged particle directed movement under electric field action is generated, induction air forms directed jet.
The domestic and international experimental study for having carried out the blending of plasma enhancing jet stream at present, but the mostly single group member of use, The relatively simple plain nozzle configuration of structure, there is no exploitations dedicated for the nozzle of plasma discharge.Further, since structure Fixed, the position for laying Plasma Actuator is limited, and layout type is single, is difficult to carry out diversified research in a deep going way.
Summary of the invention
The application be to solve above-mentioned existing nozzle experimental provision there are aiming at the problem that, a kind of research plasma is provided Body enhances the shearing two-dimensional rectangle spray nozzle device of jet stream blending, realizes shearing jet stream, base by inside and outside twin-jet nozzle nested structure In surface dielectric barrier discharge, copper foil electrode (i.e. Plasma Actuator) and apply high pressure on its structure different location Electricity can form near wall plasma jet, realize pneumatic intervention of the plasma to shearing jet stream.Can realize simultaneously it is single or Multiple Plasma Actuators different location (inner nozzle inner wall, outside wall surface and outer nozzle inner wall, outside wall surface) installation and Be laid out at any angle and nozzle various features parameter (inner nozzle gap width, outer nozzle gap width, premix length) It adjusts, different affecting factors can be investigated to carry out research abundant.
In order to solve the above technical problems, the application the technical solution adopted is that:
A kind of shearing rectangle nozzle device blended for studying plasma enhancing jet stream, including inner nozzle, outer spray Mouth and collection chamber, the inner nozzle and outer nozzle stretch out inside the collection chamber, and the inner nozzle is out of described outer nozzle Portion is stretched out;Wherein:
Drive end bearing bracket and rear end cap, the company of the drive end bearing bracket and rear end cap are respectively equipped in the front side of the collection chamber and rear side It meets place and is equipped with intermediate isolating plate, the central area of the intermediate isolating plate is rectangular hollow region;Before the drive end bearing bracket is equipped with End cap air inlet, the rear end cap are equipped with rear end cap air inlet;Collection chamber forms two individually collection using intermediate isolating plate Headroom, drive end bearing bracket, rear end cap air inlet connect with parallel connection outside supply air line, respectively to outer nozzle, inner nozzle supply.
The inner nozzle includes an inner nozzle bracket and two inner nozzle sidings, and the inner nozzle bracket is fixed on described On intermediate isolating plate, the inner nozzle bracket is equipped with ribs, and two inner nozzle sidings are each attached in the ribs simultaneously It is combined into the inner nozzle;The inner nozzle siding initially passes through inner nozzle gasket, then the rectangular hollow from the intermediate isolating plate Region is stretched out;The inner nozzle is realized by the rear end cap air inlet and is supplied;
The outer nozzle is grouped as by part and outer nozzle lower part on outer nozzle, and the outer nozzle is fixed on the drive end bearing bracket On, and realized and supplied by the drive end bearing bracket air inlet.
Further, the drive end bearing bracket, rear end cap and intermediate isolating plate are equipped with bolt hole, interior hexagonal spiral shell in corresponding position Bolt sequentially passes through drive end bearing bracket, intermediate isolating plate and bolt hole on rear end cap and fills drive end bearing bracket, rear end cap and intermediate isolating plate With for collection chamber.
Further, the inner nozzle bracket includes bracket siding and ribs, and the ribs are perpendicular to bracket siding Setting, the bracket siding are parallel to the intermediate isolating plate setting, and described two inner nozzle sidings are set perpendicular to bracket siding It sets and is fixed in the ribs;The inner nozzle gasket is arranged between the bracket siding and intermediate isolating plate;It is described Bracket siding, inner nozzle gasket and intermediate isolating plate are equipped with kidney slot in corresponding position, and hexagon socket head cap screw sequentially passes through bracket The inner nozzle bracket is fixed on the intermediate isolating plate by the kidney slot of siding, inner nozzle gasket and intermediate isolating plate.
Further, part and part under outer nozzle are described outer including pedestal and outer nozzle siding on the outer nozzle Nozzle siding is arranged perpendicular to the pedestal, and the pedestal is parallel to the drive end bearing bracket setting, the phase of two pedestals and drive end bearing bracket Position is answered to be equipped with kidney slot, hexagon socket head cap screw sequentially passes through two pedestals and the kidney slot of drive end bearing bracket fixes the outer nozzle On the drive end bearing bracket.
Further, the venthole of the inner nozzle and outer nozzle is rectangle, and the length-width ratio of the venthole is big In 50;Inner nozzle siding two sides and outer nozzle siding two sides can lay Plasma Actuator or swash directly as plasma Encourage the dielectric barrier of device;Two outer nozzle siding ends are also provided with location hole.
Further, the two sides of the inner nozzle gasket, intermediate isolating plate and the outer nozzle pedestal close to drive end bearing bracket are assembled Face is provided with sealing rubber ring.
Further,
Two inner nozzle siding geometric parameters are identical, and are aligned respectively in length-width direction;
The outer nozzle siding includes planomural and the side wall positioned at planomural two sides, surrounds structure in " C " shape;It is sprayed outside two The planomural thickness of mouth siding is identical, and the sidewall thickness of two outer nozzle sidings is also identical;The Sidewall Height of each outer nozzle siding One is long and the other is short, and long side wall height is equal to the sum of short side wall height peace wall thickness, the short side wall of outer nozzle siding and another The corresponding arrangement of the long side wall of outer nozzle siding, wherein there are slit on the outside of short side wall, slit width is identical as sidewall thickness;
It is hollow close to the outer nozzle base center region of drive end bearing bracket, for across another outer nozzle siding;Close to front end The sum of the outer nozzle siding length of lid and its base thickness are equal to another outer nozzle siding length.
Further, the inner nozzle and outer nozzle are using ceramics and polytetrafluoroethylene (PTFE);The collection chamber uses stainless steel Material.
Further, the straight flange of the kidney slot is arranged in a vertical direction.
Further, the drive end bearing bracket is equipped with 5 drive end bearing bracket air inlets, the rear end cap be equipped with 4 rear end caps into Stomata, the drive end bearing bracket air inlet and rear end cap air inlet are in lateral equidistant arranged, and with external supply air line Connection.
The invention has the benefit that
1, above-mentioned collection chamber uses intermediate isolating plate, and is assembled with inner nozzle bracket, inner nozzle gasket, gas collection Room is divided into two individually collection headrooms, connect respectively with outer nozzle, inner nozzle, so that two nozzles is had gas supply and individually adjusts function Energy.
2, for the air inlet of above-mentioned collection chamber rear end cap, drive end bearing bracket using being laterally equally spaced, pipeline, should using being connected in parallel Layout type can guarantee that nozzle different location flow is essentially identical, in addition, nozzle length-width ratio requires to be greater than 50, comprehensive described two Point makes jet stream have good two-dimensional flow characteristic, i.e. jet flow field is transversely with uniformity.
3, above-mentioned inner nozzle, outer nozzle can be met using nonmetallic materials such as the good ceramics of insulating properties, polytetrafluoroethylene (PTFE) The insulating properties requirement that Plasma Actuator discharges to carrier, the high-voltage electricity for preventing driver from applying and metal collection chamber and outside It is connected, furthermore nozzle wall surface utilizes insulation characterisitic itself, can be directly as Plasma Actuator dielectric barrier.
4, two kinds of above-mentioned inner nozzle bracket, inner nozzle gasket part sizes can be at seriations, and nozzle wall surface material can be at being Columnization may be selected corresponding part according to the influence that experimental study investigates different materials, dimensional parameters and be assembled.
5, above-mentioned inner nozzle, outer nozzle have been all made of the method that parts processing reassembles, and can first lay before unassembled Plasma Actuator has very strong operation, it can be achieved that driver is convenient at an arbitrary position, quick laying in an experiment Property.
Detailed description of the invention
Fig. 1 is SDBD exciter structure schematic diagram;
Fig. 2 is the isometric views of shearing rectangle nozzle device of the present invention;
Fig. 3 is the front view of shearing rectangle nozzle device of the present invention;
Fig. 4 is shearing rectangle nozzle device side view cutaway drawing of the present invention;
Fig. 5 is the assembly explosive view of shearing rectangle nozzle device of the present invention;
Fig. 6 is the inner nozzle support schematic diagram of shearing rectangle nozzle device of the present invention;
Fig. 7 is partial schematic diagram on the outer nozzle of shearing rectangle nozzle device of the present invention;
Fig. 8 is partial schematic diagram under the outer nozzle of shearing rectangle nozzle device of the present invention;
Wherein, 11. collection chamber;120. drive end bearing bracket;121. hexagon socket head cap screw;122. drive end bearing bracket air inlet;It is spaced in 130. From plate;140. rear end cap;141. rear end cap air inlets;150. inner nozzle gaskets;21. inner nozzle;220. inner nozzle brackets;221. Hexagon socket head cap screw;222. bracket sidings;223. ribs;224. kidney slot;230. inner nozzle sidings;31. outer nozzle;320. outer Part under nozzle;321. pedestal;Part on 330. outer nozzles;331. hexagon socket head cap screw;332. long side wall;333. short side wall; 334. kidney slot;335. location hole;336. planomural.
Specific embodiment
In order to make the objectives, technical solutions, and advantages of the present invention clearer, with reference to the accompanying drawings and embodiments, right The present invention is further elaborated.It should be appreciated that described herein, specific examples are only used to explain the present invention, not For limiting the present invention.
A kind of shearing rectangle nozzle device blended for studying plasma enhancing jet stream, with reference to Fig. 2~5, including Inner nozzle 21, outer nozzle 31 and collection chamber 11, the inner nozzle 21 and outer nozzle 31 stretch out inside the collection chamber 11, institute Inner nozzle 21 is stated to stretch out inside the outer nozzle 31.
Drive end bearing bracket 120 and rear end cap 140, the drive end bearing bracket 120 are respectively equipped in the front side of the collection chamber 11 and rear side It is equipped with intermediate isolating plate 130 with the junction of rear end cap 140, the central area of the intermediate isolating plate 130 is rectangular hollow area Domain, for across inner nozzle 21.Specifically, the drive end bearing bracket 120, rear end cap 140 and intermediate isolating plate 130 are equal in corresponding position Equipped with bolt hole, hexagon socket head cap screw 121 sequentially passes through the bolt hole on drive end bearing bracket 120, intermediate isolating plate 130 and rear end cap 140 And drive end bearing bracket 120, rear end cap 140 and intermediate isolating plate 130 are assembled as collection chamber 11.It is empty that collection chamber is divided into two independent gas collections Between, it is connect respectively with outer nozzle, inner nozzle, outer nozzle, inner nozzle is made to have the independent regulatory function of gas supply.
The inner nozzle 21 includes an inner nozzle bracket 220 and two inner nozzle sidings 230, the inner nozzle bracket 220 are fixed on the intermediate isolating plate 130, and the inner nozzle bracket 220 is equipped with ribs 223, two inner nozzle sidings 230 are each attached in the ribs 223 and are combined into the inner nozzle 21;The inner nozzle siding 230 initially passes through inner nozzle Gasket 150, then stretched out from the rectangular hollow region of the intermediate isolating plate 130;The inner nozzle 21 is by rear end cap air inlet 141 Realize gas supply.
With reference to Fig. 2~6, the inner nozzle bracket 220 includes bracket siding 222 and ribs 223, the ribs 223 It is arranged perpendicular to bracket siding 222, the bracket siding 222 is parallel to the intermediate isolating plate 130 and is arranged, described two interior sprays Mouth siding 230 is arranged perpendicular to bracket siding 222 and is fixed in the ribs 223.The setting of inner nozzle gasket 150 exists Between the bracket siding 222 and intermediate isolating plate 130.The bracket siding 222, inner nozzle gasket 150 and intermediate isolating plate 130 are equipped with kidney slot in corresponding position, hexagon socket head cap screw 221 sequentially pass through bracket siding 222, inner nozzle gasket 150 and in Between the kidney slot 224 of isolation board 130 the inner nozzle bracket 220 is fixed on the intermediate isolating plate 130.
With reference to Fig. 5,7~8, the outer nozzle 31 is made of part 320 under part 330 on outer nozzle and outer nozzle, described Outer nozzle 31 is fixed on the drive end bearing bracket 120, and is realized and supplied by drive end bearing bracket air inlet 122.
Part 320 includes pedestal 321 and outer nozzle siding under part 330 and outer nozzle on the outer nozzle, described outer Nozzle siding is arranged perpendicular to the pedestal 321, and the pedestal 321 is parallel to the drive end bearing bracket 120 and is arranged, two pedestals 321 It is equipped with kidney slot 334 with the corresponding position of drive end bearing bracket 120, hexagon socket head cap screw 331 sequentially passes through two pedestals 321 and drive end bearing bracket The outer nozzle 31 is fixed on the drive end bearing bracket 120 by 120 kidney slot.
The drive end bearing bracket 120 is equipped with 5 drive end bearing bracket air inlets 122, the rear end cap 140 be equipped with 4 rear end caps into Stomata 141, the drive end bearing bracket air inlet 122 and rear end cap air inlet 141 in laterally equidistant arranged, and with outside Using being connected in parallel, which can guarantee the basic phase of nozzle different location flow for supply air line connection, i.e. supply air line Together.In addition, the venthole of the inner nozzle 21 and outer nozzle 31 is rectangle, and length-width ratio is all larger than 50, the comprehensive two o'clock Jet stream is set to have good two-dimensional flow characteristic, i.e. jet flow field is transversely with uniformity.
The two sides of the inner nozzle gasket 150, intermediate isolating plate 130 and the outer nozzle pedestal 321 close to drive end bearing bracket 120 fill Sealing rubber ring is provided with face.
Two inner nozzle siding geometric parameters are identical, and are aligned respectively in length-width direction.
The outer nozzle siding includes planomural 336 and the side wall positioned at 336 two sides of planomural, surrounds structure in " C " shape;Two 336 thickness of planomural of a outer nozzle siding is identical, and the sidewall thickness of two outer nozzle sidings is also identical;Each outer nozzle siding One is long and the other is short for Sidewall Height, and 332 height of long side wall is equal to the sum of 336 thickness of 333 height of short side wall and planomural, outer nozzle siding The arrangement corresponding with the long side wall 332 of another outer nozzle siding of short side wall 333, wherein there are slits for the outside of short side wall 333, narrow Slit width degree is identical as sidewall thickness;
It is hollow close to 321 central area of outer nozzle pedestal of drive end bearing bracket 120, for across another outer nozzle siding;Patch Nearby the sum of the outer nozzle siding length of end cap 120 and its 321 thickness of pedestal are equal to another outer nozzle siding length.
The collection chamber 11 uses stainless steel material.The inner nozzle 21 and outer nozzle 31 use the good pottery of insulating properties The nonmetallic materials such as porcelain, polytetrafluoroethylene (PTFE) can meet insulating properties requirement of the Plasma Actuator electric discharge to carrier, prevent from motivating The high-voltage electricity that device applies is connected with metal collection chamber and outside, and furthermore nozzle siding utilizes insulation characterisitic itself, can be direct As Plasma Actuator dielectric barrier.Two outer nozzle siding ends are also provided with location hole 335, and corresponding up and down Setting.Inner nozzle siding two sides and outer nozzle siding two sides can lay Plasma Actuator or swash directly as plasma Encourage the dielectric barrier of device.Above-mentioned inner nozzle, outer nozzle are all made of the method that parts processing reassembles, and are assembling the spray nozzle device Before, first by dielectric barrier discharge plasma driver be laid in target position, it can be achieved that driver at an arbitrary position just Prompt, quickly laying, has very strong operability in an experiment.Two kinds of inner nozzle bracket, inner nozzle gasket part sizes can be at Seriation, inner nozzle siding material can investigate different materials according to experimental study, the influence of dimensional parameters may be selected at seriation Corresponding part is assembled.
The straight flange of the kidney slot is arranged in a vertical direction.Part 320 is distinguished under part 330 and outer nozzle on outer nozzle It can be adjusted upwards, downwards, realize the change of outer nozzle gap width.Simultaneously inner nozzle 21 can with up and down adjustment, thus Change at a distance from lower wall surface on outer nozzle.
To sum up, said nozzle device part uses parts processing and refills method of completing the square, can both carry out to part of the same race The replacement of different sizes and material, and part can be finely adjusted along specific direction, it is several that nozzle various features can not only be carried out The research of what parameter, dielectric impedance changes in material, and single or multiple Plasma Actuators are realized in any position of nozzle It sets, along the fast and convenient laying of any direction.The present apparatus is compact-sized, and the processing is simple for part, is readily disassembled assembly, has higher Reliability.
The foregoing is only a preferred embodiment of the present invention, is not intended to restrict the invention, for the skill of this field For art personnel, the invention may be variously modified and varied.All within the spirits and principles of the present invention, made any to repair Change, equivalent replacement, improvement etc., should all be included in the protection scope of the present invention.

Claims (10)

1.一种用于研究等离子体增强射流掺混的剪切式矩形喷嘴装置,其特征在于,包括内喷嘴(21)、外喷嘴(31)和集气室(11),所述内喷嘴(21)和外喷嘴(31)均从所述集气室(11)内部伸出,所述内喷嘴(21)从所述外喷嘴(31)内部伸出;其中:1. A shearing rectangular nozzle device for studying plasma-enhanced jet mixing, characterized in that it comprises an inner nozzle (21), an outer nozzle (31) and a gas collection chamber (11), the inner nozzle ( 21) and the outer nozzle (31) both protrude from the inside of the gas collection chamber (11), and the inner nozzle (21) protrudes from the inside of the outer nozzle (31); wherein: 在所述集气室(11)的前侧和后侧分别设有前端盖(120)和后端盖(140),所述前端盖(120)和后端盖(140)的连接处设有中间隔离板(130),所述中间隔离板(130)的中心区域为矩形中空区域;所述前端盖(120)上设有前端盖进气孔(122),所述后端盖(140)上设有后端盖进气孔(141);A front end cover (120) and a rear end cover (140) are respectively provided on the front side and the rear side of the air collecting chamber (11), and the connection between the front end cover (120) and the rear end cover (140) is provided with An intermediate isolation plate (130), the central area of the intermediate isolation plate (130) is a rectangular hollow area; the front end cover (120) is provided with a front end cover air inlet (122), and the rear end cover (140) There is an air intake hole (141) on the rear end cover; 所述内喷嘴(21)包括一个内喷嘴支架(220)和两个内喷嘴壁板(230),所述内喷嘴支架(220)固定在所述中间隔离板(130)上,所述内喷嘴支架(220)上设有支撑肋(223),两个内喷嘴壁板(230)均固定在所述支撑肋(223)上并组合成所述内喷嘴(21);所述内喷嘴壁板(230)先穿过内喷嘴垫片(150),再从所述中间隔离板(130)的矩形中空区域伸出;所述内喷嘴(21)由所述后端盖进气孔(141)实现供气;The inner nozzle (21) includes an inner nozzle bracket (220) and two inner nozzle wall plates (230), the inner nozzle bracket (220) is fixed on the intermediate partition plate (130), and the inner nozzle A support rib (223) is provided on the bracket (220), and two inner nozzle wall plates (230) are both fixed on the support rib (223) and combined to form the inner nozzle (21); the inner nozzle wall plate (230) first passes through the inner nozzle gasket (150), and then protrudes from the rectangular hollow area of the intermediate partition plate (130); the inner nozzle (21) is passed through the rear end cover air intake hole (141) realize gas supply; 所述外喷嘴(31)由外喷嘴上部分(330)和外喷嘴下部分(320)组成,所述外喷嘴(31)固定在所述前端盖(120)上,并由所述前端盖进气孔(122)实现供气。The outer nozzle (31) is composed of an outer nozzle upper part (330) and an outer nozzle lower part (320). The outer nozzle (31) is fixed on the front end cover (120) and is inserted into the front end cover. The air hole (122) realizes air supply. 2.根据权利要求1所述的用于研究等离子体增强射流掺混的剪切式矩形喷嘴装置,其特征在于,所述前端盖(120)、后端盖(140)和中间隔离板(130)在相应位置均设有螺栓孔,内六角螺栓依次穿过前端盖(120)、中间隔离板(130)和后端盖(140)上的螺栓孔并将前端盖(120)、后端盖(140)和中间隔离板(130)装配为集气室(11)。2. The shearing rectangular nozzle device for studying plasma-enhanced jet blending according to claim 1, characterized in that the front end cover (120), the rear end cover (140) and the middle partition plate (130) ) are provided with bolt holes at the corresponding positions, and the hexagonal socket head bolts pass through the bolt holes on the front end cover (120), the middle partition plate (130) and the rear end cover (140) in turn and connect the front end cover (120), the rear end cover (140) and the intermediate isolation plate (130) are assembled as a plenum chamber (11). 3.根据权利要求1所述的用于研究等离子体增强射流掺混的剪切式矩形喷嘴装置,其特征在于,所述内喷嘴支架(220)包括支架壁板(222)和支撑肋(223),所述支撑肋(223)垂直于支架壁板(222)设置,所述支架壁板(222)平行于所述中间隔离板(130)设置,所述两个内喷嘴壁板(230)垂直于支架壁板(222)设置并固定在所述支撑肋(223)上;所述内喷嘴垫片(150)设置在所述支架壁板(222)和中间隔离板(130)之间;所述支架壁板(222)、内喷嘴垫片(150)和中间隔离板(130)在相应位置均设有腰形孔,内六角螺栓依次穿过支架壁板(222)、内喷嘴垫片(150)和中间隔离板(130)的腰形孔将所述内喷嘴支架(220)固定在所述中间隔离板(130)上。3. The shearing rectangular nozzle device for studying plasma-enhanced jet blending according to claim 1, wherein the inner nozzle holder (220) comprises a holder wall (222) and a support rib (223) ), the support ribs (223) are arranged perpendicular to the bracket wall plate (222), the bracket wall plate (222) is arranged parallel to the middle partition plate (130), and the two inner nozzle wall plates (230) The inner nozzle gasket (150) is arranged perpendicular to the bracket wall plate (222) and fixed on the support rib (223); the inner nozzle gasket (150) is arranged between the bracket wall plate (222) and the middle partition plate (130); The bracket wall plate (222), the inner nozzle gasket (150) and the middle partition plate (130) are all provided with waist-shaped holes at corresponding positions, and the inner hexagon bolts pass through the bracket wall plate (222) and the inner nozzle gasket in sequence. (150) and the waist-shaped holes of the intermediate partition plate (130) fix the inner nozzle bracket (220) on the intermediate partition plate (130). 4.根据权利要求1所述的用于研究等离子体增强射流掺混的剪切式矩形喷嘴装置,其特征在于,所述外喷嘴上部分(330)和外喷嘴下部分(320)均包括底座(321)和外喷嘴壁板,所述外喷嘴壁板垂直于所述底座(321)设置,所述底座(321)平行于所述前端盖(120)设置,两个底座(321)和前端盖(120)的相应位置均设有腰形孔,内六角螺栓依次穿过两个底座(321)和前端盖(120)的腰形孔将所述外喷嘴(31)固定在所述前端盖(120)上。4. The shearing rectangular nozzle device for studying plasma-enhanced jet blending according to claim 1, wherein the outer nozzle upper part (330) and the outer nozzle lower part (320) both comprise a base (321) and an outer nozzle wall plate, the outer nozzle wall plate is arranged perpendicular to the base (321), the base (321) is arranged parallel to the front end cover (120), the two bases (321) and the front end Corresponding positions of the cover (120) are provided with waist-shaped holes, and the inner hexagonal bolts pass through the two bases (321) and the waist-shaped holes of the front end cover (120) in turn to fix the outer nozzle (31) on the front end cover (120) on. 5.根据权利要求4所述的用于研究等离子体增强射流掺混的剪切式矩形喷嘴装置,其特征在于,所述内喷嘴(21)和外喷嘴(31)的通气孔均为矩形,且所述通气孔的长宽比均大于50;内喷嘴壁板两侧和外喷嘴壁板两侧均可敷设等离子体激励器或直接作为等离子体激励器的介质阻挡层;两个外喷嘴壁板末端还均设置有定位孔(335)。5. The shearing-type rectangular nozzle device for studying plasma-enhanced jet mixing according to claim 4, wherein the vent holes of the inner nozzle (21) and the outer nozzle (31) are all rectangular, And the length-to-width ratio of the vent holes is greater than 50; both sides of the inner nozzle wall plate and both sides of the outer nozzle wall plate can be laid with a plasma exciter or a dielectric barrier layer directly used as a plasma exciter; two outer nozzle walls The ends of the plates are also provided with positioning holes (335). 6.根据权利要求4所述的用于研究等离子体增强射流掺混的剪切式矩形喷嘴装置,其特征在于,所述内喷嘴垫片(150)、中间隔离板(130)及贴近前端盖(120)的外喷嘴底座(321)的两侧装配面均设置有密封橡胶圈。6. The shearing rectangular nozzle device for studying plasma-enhanced jet blending according to claim 4, characterized in that the inner nozzle gasket (150), the middle partition plate (130) and the front end cap Sealing rubber rings are provided on both sides of the assembly surfaces of the outer nozzle base (321) of (120). 7.根据权利要求4所述的用于研究等离子体增强射流掺混的剪切式矩形喷嘴装置,其特征在于,7. The shearing rectangular nozzle device for studying plasma-enhanced jet blending according to claim 4, characterized in that: 两个内喷嘴壁板几何参数相同,并分别在长宽方向对齐;The geometric parameters of the two inner nozzle wall plates are the same, and they are aligned in the length and width directions respectively; 所述外喷嘴壁板均包括平壁(336)和位于平壁(336)两侧的侧壁,呈“C”形包围结构;两个外喷嘴壁板的平壁(336)厚度相同,两个外喷嘴壁板的侧壁厚度也相同;每个外喷嘴壁板的侧壁高度均一长一短,长侧壁(332)高度等于短侧壁(333)高度和平壁(336)厚度之和,外喷嘴壁板的短侧壁(333)与另一个外喷嘴壁板的长侧壁(332)对应布置,其中短侧壁(333)外侧留有狭缝,狭缝宽度与侧壁厚度相同;The outer nozzle wall plates all include a flat wall (336) and side walls located on both sides of the flat wall (336), in a "C" shape enclosing structure; the flat walls (336) of the two outer nozzle wall plates have the same thickness, and the two outer nozzle walls have the same thickness. The thickness of the side walls of the outer nozzle wall plates is also the same; the height of the side walls of each outer nozzle wall plate is uniformly long and short, and the height of the long side wall (332) is equal to the sum of the height of the short side wall (333) and the thickness of the flat wall (336). , the short side wall (333) of the outer nozzle wall plate is arranged corresponding to the long side wall (332) of the other outer nozzle wall plate, wherein a slit is left on the outside of the short side wall (333), and the width of the slit is the same as the thickness of the side wall ; 贴近前端盖(120)的外喷嘴底座(321)中心区域中空,用于穿过另一个外喷嘴壁板;贴近前端盖(120)的外喷嘴壁板长度与其底座(321)厚度之和等于另一个外喷嘴壁板长度。The central area of the outer nozzle base (321) close to the front end cover (120) is hollow for passing through another outer nozzle wall plate; the sum of the length of the outer nozzle wall plate close to the front end cover (120) and the thickness of the base (321) is equal to the other One outer nozzle wall length. 8.根据权利要求1所述的用于研究等离子体增强射流掺混的剪切式矩形喷嘴装置,其特征在于,所述内喷嘴(21)和外喷嘴(31)采用陶瓷和聚四氟乙烯;所述集气室(11)采用不锈钢材料。8. The shearing rectangular nozzle device for studying plasma-enhanced jet blending according to claim 1, wherein the inner nozzle (21) and the outer nozzle (31) are made of ceramic and polytetrafluoroethylene ; The gas collection chamber (11) is made of stainless steel. 9.根据权利要求1所述的用于研究等离子体增强射流掺混的剪切式矩形喷嘴装置,其特征在于,所述腰形孔的直边均沿竖直方向布置。9 . The shearing-type rectangular nozzle device for studying plasma-enhanced jet mixing according to claim 1 , wherein the straight sides of the waist-shaped holes are all arranged in a vertical direction. 10 . 10.根据权利要求1所述的用于研究等离子体增强射流掺混的剪切式矩形喷嘴装置,其特征在于,所述前端盖(120)上设有5个前端盖进气孔(122),所述后端盖(140)上设有4个后端盖进气孔(141),所述前端盖进气孔(122)和后端盖进气孔(141)均呈横向等间距排列布置,且均与外部供气管路连接。10. The shearing rectangular nozzle device for studying plasma-enhanced jet mixing according to claim 1, wherein the front end cover (120) is provided with 5 front end cover air inlet holes (122) , the rear end cover (140) is provided with four rear end cover air intake holes (141), and the front end cover air intake holes (122) and the rear end cover air intake holes (141) are arranged horizontally at equal intervals are arranged and connected to the external air supply pipeline.
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CN106793438A (en) * 2017-01-17 2017-05-31 大连民族大学 Ring type electrode reducing jet flow generating apparatus
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CN112122614A (en) * 2020-09-12 2020-12-25 青岛理工大学 Self-excited electrostatic field-based jet deposition 3D printing device, working method and application thereof
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