CN204988692U - Experimental clamping device of using of nozzle air mass flow - Google Patents
Experimental clamping device of using of nozzle air mass flow Download PDFInfo
- Publication number
- CN204988692U CN204988692U CN201520361805.9U CN201520361805U CN204988692U CN 204988692 U CN204988692 U CN 204988692U CN 201520361805 U CN201520361805 U CN 201520361805U CN 204988692 U CN204988692 U CN 204988692U
- Authority
- CN
- China
- Prior art keywords
- nozzle
- cavity
- clamping body
- air
- flow
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Active
Links
Landscapes
- Nozzles (AREA)
Abstract
The utility model discloses an experimental clamping device of using of nozzle air mass flow, including the clamping body, there be a plurality of the setting side by side and its axis honeycomb ducts parallel with the clamping body at the mid -mounting of cavity, it has a plurality of minutes discharge orifices to open at the upper wall of clamping body, and gas box upper end is through air inlet and outside intercommunication, and gas box lower extreme is through dividing discharge orifice and cavity intercommunication, and the nozzle runs through the local of the clamping body other end and nozzle and the cavity feeds through. A plurality of honeycomb ducts that compressed air passes through the cavity middle part form the air current that the stranded is relatively stable and the velocity of flow is not of uniform size, and stranded air current direct impact to the intercommunication part of nozzle with the cavity, make the nozzle be in the air current environment in emulation stage, convenient fluid flow to the nozzle, the atomizing tapering, detection record is carried out in state distribution etc, shorten nozzle recycle adjust the time in the experimental -> design of design -> product manufacture -> finished product testing, reduce the difference between emulation and the actual production manufacturing.
Description
Technical field
The utility model relates to the clamping device of the special industry intermediate fuel oil nozzles such as a kind of Aeronautics and Astronautics, specifically refers to a kind of nozzle air flow test clamping device.
Background technology
The engine air atomizing fuel nozzle various performance parameters (fluid flow, atomization cone angle, distributions, SMD etc.) of China to Aeronautics and Astronautics has detection, but only rest on imitated design and simulation stage at survey atomization characteristics and air mass flow context of detection majority, every test parameter of input is all theoretical value ideally.In the product development stage of reality, significant cost iterative cycles in layout design → product manufacturing → finished product detection test → layout design need be spent to go to adjust, reduction Theoretical Design, emulation and actual production manufacture between difference, serious difference can reduce the request for utilization of nozzle product, even has influence on flight safety.
Utility model content
The purpose of this utility model is to provide a kind of nozzle air flow test clamping device, the difference between reduction design and simulation and finished product detection, thus shortens the time between product design and sizing, and then reaches the object reducing development cost.
The purpose of this utility model is achieved through the following technical solutions:
A kind of nozzle air flow test clamping device, comprise the clamping body that cavity is offered in inside, multiple being arranged side by side and its axis mozzle parallel with clamping body is installed at the middle part of described cavity, described clamping body one end is provided with gas box, multiple tap hole is had at the upper wall of clamping body, described gas box upper end is by air intake opening and ft connection, gas box lower end is by tap hole and cavity connects, nozzle runs through the described clamping body other end and the local of nozzle and cavity connects, nozzle passes through seal, sealing ring realizes the sealing on clamping body.When the utility model uses, by seal and sealing ring by the end of nozzle fixing seal at cavity, injecting compressed air in air intake opening, preliminary shunting is carried out until enter in cavity by multiple tap hole after pressurized air is converged in gas box, now pressurized air forms the relatively stable and air-flow that flow velocity is not of uniform size of multiplies by the multiple mozzles in the middle part of cavity, and multiply air-flow directly impacts the connected component to nozzle and cavity, nozzle is made to be in the air-flow environment of simulation stage, the convenient fluid flow to nozzle, atomization tapering, distributions etc. carry out detection record, shorten nozzle iterative cycles regulation time in layout design → product manufacturing → finished product detection test → layout design, difference between reduction emulation and actual production manufacture, and the needs that compressed-air actuated flow and flow velocity can detect according to reality regulate in time, shunted by tap hole and the stable step by step of mozzle, the stream condition making simulation stage more close to and actual value, improve the degree of accuracy of nozzle air flow detection data.
Also comprise be fixed on described clamping body upper wall and with the pressure measuring piece of cavity connects, the centre distance of described pressure measuring piece and nozzle is 5 ~ 15 ㎜.Pressure measuring piece is communicated with the cavity area between nozzle and mozzle, namely final stable emulation stream pressure value is detected in real time, staff is facilitated to adjust compressed-air actuated flow and flow velocity in time according to actual conditions, improve the diversity of nozzle detection perform parameter, product simulation is designed more close to the parameter values of qualified finished product, significantly reduces the development cost of nozzle.
The aperture of described tap hole is 1/4 of mozzle aperture.Pressurized air is injected in gas box by air intake opening, by the pressure release of tap hole, make air-flow with one faster flow velocity spurt in cavity, eventually through cavity end space buffering and under the guide effect of mozzle, the steady air flow forming multiply moves to nozzle, and the aperture of tap hole is 1/4 of pod apertures aperture, make pressurized air by gas box, tap hole, repeatedly commutation and speed change is realized near the region of cavity end and mozzle, compared with direct projection jet flow, in the utility model, stream condition change is more complicated, more be close to the actual environment condition residing for nozzle, and by repeatedly commutating and speed change, by spraying wadding stream that air-flow produces in mozzle and being confirmed abatement more than 78% compared with turbulent flow by Fluent software simulation, ensure that the test environment that nozzle is good.
Multiple described tap hole is evenly distributed on the bottom of described gas box, and the total distributed area of multiple described tap hole is 1/10 ~ 1/5 of the bottom area of described gas box.As preferably, being uniformly distributed and the special setting of its total distributed area of multiple tap hole, reduces the wadding flow that the air-flow in mozzle produces further, improves the accuracy of nozzle detected parameters under simulated environment and comprehensive.
The utility model compared with prior art, has following advantage and beneficial effect:
1, in the utility model, pressurized air forms the relatively stable and air-flow that flow velocity is not of uniform size of multiplies by the multiple mozzles in the middle part of cavity, and multiply air-flow directly impacts the connected component to nozzle and cavity, nozzle is made to be in the air-flow environment of simulation stage, the convenient fluid flow to nozzle, atomization tapering, distributions etc. carry out detection record, shorten nozzle iterative cycles regulation time in layout design → product manufacturing → finished product detection test → layout design, the difference between reduction emulation and actual production manufacture; And the needs that compressed-air actuated flow and flow velocity can detect according to reality regulate in time, shunted by tap hole and the stable step by step of mozzle, the stream condition making simulation stage more close to and actual value, improve the degree of accuracy of nozzle air flow detection data;
2, pressure measuring piece of the present utility model is communicated with the cavity area between nozzle and mozzle, namely final stable emulation stream pressure value is detected in real time, staff is facilitated to adjust compressed-air actuated flow and flow velocity in time according to actual conditions, improve the diversity of nozzle detection perform parameter, product simulation is designed more close to the parameter values of qualified finished product, significantly reduces the development cost of nozzle;
3, in the utility model, the aperture of tap hole is 1/4 of pod apertures aperture, make pressurized air by gas box, tap hole, realize repeatedly commutation and speed change near the region of cavity end and mozzle, compared with direct projection jet flow, in the utility model, stream condition change is more complicated, more be close to the actual environment condition residing for nozzle, and by repeatedly commutating and speed change, by spraying wadding stream that air-flow produces in mozzle and being confirmed abatement more than 78% compared with turbulent flow by Fluent software simulation, ensure that the test environment that nozzle is good.
Accompanying drawing explanation
Accompanying drawing described herein is used to provide the further understanding to the utility model embodiment, forms a application's part, does not form the restriction to the utility model embodiment.In the accompanying drawings:
Fig. 1 is structural representation of the present utility model;
Fig. 2 vertical view of the present utility model;
Mark and corresponding parts title in accompanying drawing:
1-mozzle, 2-gas box, 3-tap hole, 4-sealing ring, 5-air intake opening, 6-clamping body, 7-pressure measuring piece, 8-nozzle, 9-seal.
Embodiment
Clearly understand for making the purpose of this utility model, technical scheme and advantage, below in conjunction with embodiment and accompanying drawing, the utility model is described in further detail, exemplary embodiment of the present utility model and explanation thereof are only for explaining the utility model, and conduct is not to restriction of the present utility model.
Embodiment 1
As depicted in figs. 1 and 2, the present embodiment comprises the clamping body 6 that cavity is offered in inside, multiple being arranged side by side and its axis mozzle 1 parallel with clamping body 6 is installed at the middle part of described cavity, described clamping body 6 one end is provided with gas box 2, multiple tap hole 3 is had at the upper wall of clamping body 6, described gas box 2 upper end is by air intake opening 5 and ft connection, gas box 2 lower end is by tap hole 3 and cavity connects, nozzle 8 runs through described clamping body 6 other end and the local of nozzle 8 and cavity connects, nozzle 8 is by seal 9, sealing ring 4 realizes the sealing on clamping body 6.When the utility model uses, by seal 9 and sealing ring 4 by nozzle 8 fixing seal in the end of cavity, injecting compressed air in air intake opening 5, preliminary shunting is carried out until enter in cavity by multiple tap hole 3 after pressurized air is converged in gas box 2, now pressurized air forms the relatively stable and air-flow that flow velocity is not of uniform size of multiply by the multiple mozzles 1 in the middle part of cavity, and multiply air-flow directly impacts the connected component to nozzle 8 and cavity, nozzle 8 is made to be in the air-flow environment of simulation stage, the convenient fluid flow to nozzle 8, atomization tapering, distributions etc. carry out detection record, shorten nozzle 8 iterative cycles regulation time in layout design → product manufacturing → finished product detection test → layout design, difference between reduction emulation and actual production manufacture, and the needs that compressed-air actuated flow and flow velocity can detect according to reality regulate in time, shunted by tap hole 3 and the stable step by step of mozzle 1, the stream condition making simulation stage more close to and actual value, improve the degree of accuracy that nozzle 8 air mass flow detects data.
Wherein, also comprise be fixed on described clamping body 6 upper wall and with the pressure measuring piece 7 of cavity connects, described pressure measuring piece 7 is 5 ~ 15 ㎜ with the centre distance of nozzle 8.Pressure measuring piece 7 is communicated with the cavity area between nozzle 8 and mozzle 1, namely final stable emulation stream pressure value is detected in real time, staff is facilitated to adjust compressed-air actuated flow and flow velocity in time according to actual conditions, improve the diversity of nozzle 8 detection perform parameter, product simulation is designed more close to the parameter values of qualified finished product, significantly reduces the development cost of nozzle 8, pressurized air is injected in gas box 2 by air intake opening 5, by the pressure release of tap hole 3, make air-flow with one faster flow velocity spurt in cavity, eventually through cavity end space buffering and under the guide effect of mozzle 1, the steady air flow forming multiply moves to nozzle 8, and the aperture of tap hole 3 is 1/4 of pod apertures aperture, make pressurized air by gas box 2, tap hole 3, realize repeatedly commutating and speed change near the region of cavity end and mozzle 1, compared with direct projection jet flow, in the utility model, stream condition change is more complicated, more be close to the actual environment condition residing for nozzle 8, and by repeatedly commutating and speed change, by spraying wadding stream that air-flow produces in mozzle 1 and being confirmed abatement more than 78% compared with turbulent flow by Fluent software simulation, ensure that the test environment that nozzle 8 is good.
As preferably, being uniformly distributed and the special setting of its total distributed area of multiple tap hole 3, reduces the wadding flow that the air-flow in mozzle 1 produces further, improves the accuracy of nozzle 8 detected parameters under simulated environment and comprehensive.
Above-described embodiment; the purpose of this utility model, technical scheme and beneficial effect are further described; be understood that; the foregoing is only embodiment of the present utility model; and be not used in restriction protection domain of the present utility model; all within spirit of the present utility model and principle, any amendment made, equivalent replacement, improvement etc., all should be included within protection domain of the present utility model.
Claims (4)
1. a nozzle air flow test clamping device, comprise the clamping body (6) that cavity is offered in inside, it is characterized in that: multiple being arranged side by side and its axis mozzle (1) parallel with clamping body (6) is installed at the middle part of described cavity, described clamping body (6) one end is provided with gas box (2), multiple tap hole (3) is had at the upper wall of clamping body (6), described gas box (2) upper end is by air intake opening (5) and ft connection, gas box (2) lower end is by tap hole (3) and cavity connects, nozzle (8) runs through described clamping body (6) other end and the local of nozzle (8) and cavity connects, nozzle (8) is by seal (9), sealing ring (4) realizes the sealing on clamping body (6).
2. a kind of nozzle air flow test clamping device according to claim 1, it is characterized in that: also comprise be fixed on described clamping body (6) upper wall and with the pressure measuring piece (7) of cavity connects, described pressure measuring piece (7) is 5 ~ 15 ㎜ with the centre distance of nozzle (8).
3. a kind of nozzle air flow test clamping device according to claim 1, is characterized in that: the aperture of described tap hole (3) is 1/4 of mozzle (1) aperture.
4. a kind of nozzle air flow test clamping device according to claim 1 or 3, it is characterized in that: multiple described tap hole (3) is evenly distributed on the bottom of described gas box (2), and the total distributed area of multiple described tap hole (3) is 1/10 ~ 1/5 of the bottom area of described gas box (2).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520361805.9U CN204988692U (en) | 2015-05-29 | 2015-05-29 | Experimental clamping device of using of nozzle air mass flow |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520361805.9U CN204988692U (en) | 2015-05-29 | 2015-05-29 | Experimental clamping device of using of nozzle air mass flow |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204988692U true CN204988692U (en) | 2016-01-20 |
Family
ID=55123050
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201520361805.9U Active CN204988692U (en) | 2015-05-29 | 2015-05-29 | Experimental clamping device of using of nozzle air mass flow |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN204988692U (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106768946A (en) * | 2016-12-21 | 2017-05-31 | 成都航利航空科技有限责任公司 | A kind of fuel nozzle radial distribution comprehensive measurement device |
| CN108603779A (en) * | 2016-02-09 | 2018-09-28 | 高准公司 | Method and apparatus for modulating flow passage |
| CN109632324A (en) * | 2018-12-13 | 2019-04-16 | 西安航天动力研究所 | A kind of experimental rig for nozzle liquid flow test |
| CN110068458A (en) * | 2019-04-16 | 2019-07-30 | 安徽捷迅光电技术有限公司 | A kind of snifting valve flow detection frock |
-
2015
- 2015-05-29 CN CN201520361805.9U patent/CN204988692U/en active Active
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108603779A (en) * | 2016-02-09 | 2018-09-28 | 高准公司 | Method and apparatus for modulating flow passage |
| CN106768946A (en) * | 2016-12-21 | 2017-05-31 | 成都航利航空科技有限责任公司 | A kind of fuel nozzle radial distribution comprehensive measurement device |
| CN109632324A (en) * | 2018-12-13 | 2019-04-16 | 西安航天动力研究所 | A kind of experimental rig for nozzle liquid flow test |
| CN109632324B (en) * | 2018-12-13 | 2020-07-24 | 西安航天动力研究所 | Test device for nozzle liquid flow test |
| CN110068458A (en) * | 2019-04-16 | 2019-07-30 | 安徽捷迅光电技术有限公司 | A kind of snifting valve flow detection frock |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN204988692U (en) | Experimental clamping device of using of nozzle air mass flow | |
| CN108168832B (en) | A kind of throat structure improving tube wind tunnel test Reynolds number | |
| CN108195544B (en) | A kind of impulse type wind-tunnel tandem jet pipe | |
| CN204495535U (en) | 1.2 meters of magnitude wind-tunnel represent dynamically injectors | |
| CN107655652B (en) | Air supply device and air supply method for small-thrust jet nozzle in wind tunnel test | |
| CN107436219B (en) | Inlet and exhaust pipeline device in unconventional layout form | |
| CN112035952B (en) | Design method of ejector nozzle experimental device for simulating outflow of aircraft | |
| CN113945355B (en) | Air inlet channel wind tunnel test simulation system under shock wave | |
| CN105443268A (en) | Bypass type passive double-throat pneumatic vector spraying pipe with flow regulating function and control method | |
| CN104807610A (en) | Sprayer nozzle used for tail jet flow interference test | |
| CN101424586A (en) | High wind speed smoke display method and device thereof | |
| CN104729825A (en) | Auxiliary jet-flow system for controlling high speed wind tunnel transonic flow field | |
| CN109387350B (en) | Internal coaxial corrugated pipe balance system | |
| CN104408243B (en) | A kind of engine mockup installed thrust modification method | |
| CN109100110A (en) | One kind being applied to double venturi Thrust-vectoring Nozzles ventilation supporting arm devices | |
| CN114838903A (en) | Wind tunnel air inlet channel test support with throttling and injection functions | |
| Lai et al. | Numerical investigation of pitch motion induced unsteady effects on transverse jet interaction | |
| CN108612598A (en) | Change the method and engine chamber of dual-mode scramjet burning mode | |
| CN202709180U (en) | Double-oil-way fuel injection device | |
| CN103020365B (en) | Active flow control calculation method for serpentine air inlet channel | |
| CN202590664U (en) | Oil-gas mixing device | |
| CN202149174U (en) | Oil gas adjustable damping device capable of automatically resetting | |
| CN102288380B (en) | Blowing type gust generator | |
| CN108240898A (en) | A kind of impulse type wind-tunnel tandem jet pipe | |
| CN102937529A (en) | Hot-blowing adjustable nozzle |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant |