CN202793795U - Fixed measuring rake for measuring pneumatic parameters - Google Patents
Fixed measuring rake for measuring pneumatic parameters Download PDFInfo
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- CN202793795U CN202793795U CN201220479433.6U CN201220479433U CN202793795U CN 202793795 U CN202793795 U CN 202793795U CN 201220479433 U CN201220479433 U CN 201220479433U CN 202793795 U CN202793795 U CN 202793795U
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Abstract
The utility model discloses a fixed measuring rake for measuring pneumatic parameters. Two or more than two through holes are arranged at the head of a probe, and piezometric tubes are arranged in the through holes. By the aid of the fixed measuring rake, various target parameters can be measured, single-point multiple-target measurement is realized by the aid of the multi-hole probe, data such as single-point total pressure, static pressure, velocity vector and temperature can be measured, the fixed measuring rake is simple in structure, and multiple-target measurement for a pneumatic parameter distribution map is realized.
Description
Technical field
The utility model relates to engine charge aberration test technical field, relates in particular to a kind of fixed measurement rake of measuring aerodynamic parameter.
Background technology
At present, the pressure measurement rake is used for gas pressure measurement, can be divided into fixed pressure measurement rake and rotary pressure measurement rake according to the locomotory mechanism difference.Fixed pressure measurement rake is compared rotary pressure measurement rake, need not complicated rotation actuation mechanism is set, so simple in structure, reliability is high, with low cost, thereby be widely used in the stable state inlet distortion of measuring aeromotor and compressibility thereof.For the civil aviation engine, fixed measurement rake generally is installed on place, radome fairing top end face, pressure measurement is harrowed the installation site and arranged signal as shown in Figure 1: fixed pressure measurement rake 1 is installed in fancase 3 end faces, and air-flow enters fancase 3, and probe 2 carries out the air pressure test.
Probe on traditional fixed pressure measurement rake is pitot tube (a tiny iron pipe), pitot tube one end catches single-point stagnation pressure signal, the other end links to each other with flexible pipe, by flexible pipe the stagnation pressure signal is transferred to pressure acquisition system, record single-point stagnation pressure value, then each single-point stagnation pressure signal is carried out rational interpolation processing, can obtain the inlet distortion collection of illustrative plates.Although traditional fixed pressure measurement rake is simple in structure, but because the structural limitations of its pitot tube, cause measurement target single, only can measure the stagnation pressure collection of illustrative plates, can't record other aerodynamic parameter, such as the distribution collection of illustrative plates of static pressure, velocity, temperature, and these parameters are carried out engine compression system stability analysis, test just, and design indispensable boundary condition.
Therefore, need a kind of new measurement rake, it can either inheriting tradition the simple advantage of fixed pressure measurement rake structure, thereby provide reliable equipment guarantee for finishing smoothly the engine charge aberration test, can measure stagnation pressure, static pressure, velocity again, and the distribution collection of illustrative plates of the multiple aerodynamic parameter such as temperature, thereby for to carry out stability analysis, the test of compressibility, and design provides comprehensive boundary condition.
Summary of the invention
In view of this, a technical matters to be solved in the utility model provides a kind of fixed measurement rake of measuring aerodynamic parameter, can carry out the measurement of plurality of target parameter.
A kind of fixed measurement rake of measuring aerodynamic parameter, described fixed measurement rake comprises: probe, the head of described probe arrange 2 or 2 above through holes, wherein, in the described through hole piezometric tube can be set.
According to an embodiment of fixed measurement rake of the present utility model, further, an end of described piezometric tube inserts in the described through hole from the afterbody of described probe, and the other end of described piezometric tube is connected with the flexible pipe of pressure acquisition system.
According to an embodiment of fixed measurement rake of the present utility model, further, the head of described probe arranges 5 through holes.
According to an embodiment of fixed measurement rake of the present utility model, further, the head of described probe is conical; Center at the head of described probe arranges a through hole, 4 through holes that are symmetric the circular conical surface setting of the head of described probe.
According to an embodiment of fixed measurement rake of the present utility model, further, described fixed measurement rake also comprises: connect casing and support; Described connection casing is circular ring structure; Described stent support is in described circular ring structure; The probe mounting hole is set on the described support, and described probe is installed in the described probe mounting hole, and the head of described probe is arranged on outside the described probe mounting hole.
According to an embodiment of fixed measurement rake of the present utility model, further, described fixed measurement rake comprises 8 supports, and 5 probes are set on each support, and is symmetrical centered by wherein said 8 supports.
According to an embodiment of fixed measurement rake of the present utility model, further, the material of described probe is plastics, glass or metal.
Fixed measurement rake of the present utility model can carry out the measurement of plurality of target parameter, utilizes the porous probe can carry out the single-point multi-target measurement, can measure the data such as single-point stagnation pressure, static pressure, velocity and temperature.Fixed measurement rake structure of the present utility model is simple and realized the multi-target measurement of aerodynamic parameter distribution collection of illustrative plates.
Description of drawings
In order to be illustrated more clearly in the utility model embodiment or technical scheme of the prior art, the below will do one to the accompanying drawing of required use in embodiment or the description of the Prior Art and introduce simply, apparently, accompanying drawing in the following describes only is embodiment more of the present utility model, for those of ordinary skills, under the prerequisite of not paying creative work, can also obtain according to these accompanying drawings other accompanying drawing.
Fig. 1 is the scheme of installation of fixed measurement rake of the prior art;
Fig. 2 is the synoptic diagram according to an embodiment of the fixed measurement rake of measurement aerodynamic parameter of the present utility model;
Fig. 3 A-3E is the synoptic diagram of installing according to for embodiment middle probe and the piezometric tube of the fixed measurement rake of measurement aerodynamic parameter of the present utility model;
Wherein: mounting edge, 16-probe, 17-piezometric tube behind the fixed pressure measurement rake of 1-, 2-probe, 3-fancase, 4-fan blade, 5-fan disk, 6-booster stage blade, 8-support, 9-probe, the front mounting edge of 10-, 11-mounting edge positioning bolt hole, 12-piezometric tube, 13-support cavity, 14-connection casing, the 15-.
Embodiment
With reference to the accompanying drawings the utility model is described more fully, exemplary embodiment of the present utility model wherein is described.Below in conjunction with the accompanying drawing among the utility model embodiment, the technical scheme among the utility model embodiment is clearly and completely described, obviously, described embodiment only is the utility model part embodiment, rather than whole embodiment.Based on the embodiment in the utility model, those of ordinary skills are not making the every other embodiment that obtains under the creative work prerequisite, all belong to the scope of the utility model protection.Below in conjunction with figure and embodiment the technical solution of the utility model is carried out many-sided description.
Fig. 2 is the synoptic diagram according to an embodiment of the fixed measurement rake of measurement aerodynamic parameter of the present utility model.As shown in the figure, the fixed measurement rake of measurement aerodynamic parameter comprises that probe 9, the head of probe 9 arrange 2 or 2 above through holes, can arrange piezometric tube in each through hole.One end of piezometric tube 5 inserts in the through hole of probe from the afterbody of probe, and the other end of piezometric tube 5 is connected with the flexible pipe of pressure acquisition system.
Fixed measurement rake of the present utility model has overcome the existing fixed measurement rake of use only can record the stagnation pressure collection of illustrative plates, and can't learn other aerodynamic parameter, defective such as the distribution collection of illustrative plates of static pressure, velocity, temperature, and solved and can't be stability analysis, the test of compressibility, and design provides the problem of comprehensive boundary condition.
According to an embodiment of the present utility model, fixed measurement rake comprises connection casing 14 and support 8.Connecting casing 14 is circular ring structure.Support 8 is supported in the circular ring structure.The quantity of support 8 can be for more than 2 or 2.The probe mounting hole is set on the support 8, and probe 9 is installed in the probe mounting hole, and the head of probe 9 is arranged on outside the probe mounting hole.
According to an embodiment of the present utility model, fixed measurement rake comprises 8 supports 8, and is wherein symmetrical centered by 8 supports 8, and 5 probes 9 are set on each support 8, and probe 9 can be even distribution.
According to an embodiment of the present utility model, the head of probe 9 arranges 5 through holes, also can arrange 4,6 etc., can select as required.Probe 9 is stretched in support 8 cavitys, the head of probe 9 stretches out from the probe mounting hole of support 8 leading edges, between the slit by welding or glued joint fixingly, the piezometric tube 5 of probe 9 inside extends to by support 8 cavitys and connects casing 14 outsides, and is inserted in the flexible pipe of Bonding pressure acquisition system.
5 five-hole probes are arranged on each support 8, and each five-hole probe inside is inserted with 5 piezometric tube, so in each support 8 cavity 25 piezometric tube is arranged.After five-hole probe was fixed on the support 8, an end that support 8 is stretched out piezometric tube 5 was from connecting casing 14 inner insertions the hole that connects casings 14, between the slit by welding or glued joint fixing.The other end of support 8 is fixed by welding, and the assembling of rake body is finished.The front mounting edge 10 of rake body links to each other with the engine blower casing with the technique air intake duct respectively by bolt with rear mounting edge 15.
Fig. 3 A-3E is the synoptic diagram of installing according to for embodiment middle probe and the piezometric tube of the fixed measurement rake of measurement aerodynamic parameter of the present utility model.Wherein, Fig. 3 A is the front view of probe, and Fig. 3 B is the left view (part) of probe, and Fig. 3 C is the stereographic map (part) of probe, and Fig. 3 D is the installation diagram of piezometric tube, and Fig. 3 E is the synoptic diagram that piezometric tube one end extends.
As shown in the figure, probe is five-hole probe, and the head of probe is conical, at the center of the head of probe a through hole is set, 4 through holes that are symmetric the circular conical surface setting of the head of probe.Each five-hole probe inside is inserted with 5 piezometric tube.The piezometric tube 17 of linking probe 16 extends to by the support cavity and connects the casing outside.According to an embodiment, the material of probe is plastics, glass or metal etc.
Fixed measurement rake of the present utility model is on the architecture basics of traditional fixed pressure measurement rake, improve harrowing upper probe, to harrow existing pitot tube and be replaced by the porous probe, take full advantage of the advantage that the porous probe can carry out the single-point multi-target measurement, can measure single-point stagnation pressure, static pressure, velocity and temperature etc.The porous probe is installed on the pressure measurement rake, when having kept the simple advantage of fixed pressure measurement rake structure, has realized the multi-target measurement of aerodynamic parameter distribution collection of illustrative plates.
Fixed measurement rake of the present utility model is when the inlet distortion test of carrying out complete machine or compressibility, can realize the multi-target measurement of engine or compressibility import cross section aerodynamic parameter distribution collection of illustrative plates, thereby for to carry out stability analysis, the test of compressibility, and design provides comprehensive boundary condition.Fixed measurement rake structure of the present utility model simple (relatively rotary measurement rake does not rotate actuation mechanism) is easy to use.
Description of the present utility model provides for example with for the purpose of describing, and is not exhaustively or with the utility model to be limited to disclosed form.Many modifications and variations are obvious for the ordinary skill in the art.Selecting and describing embodiment is for better explanation principle of the present utility model and practical application, thereby and makes those of ordinary skill in the art can understand the various embodiment with various modifications that the utility model design is suitable for special-purpose.
Claims (7)
1. a fixed measurement of measuring aerodynamic parameter is harrowed, and described fixed measurement rake comprises: probe is characterized in that:
The head of described probe arranges 2 or 2 above through holes, wherein, in the described through hole piezometric tube is set.
2. fixed measurement as claimed in claim 1 is harrowed, and it is characterized in that:
One end of described piezometric tube inserts in the described through hole from the afterbody of described probe, and the other end of described piezometric tube is connected with the flexible pipe of pressure acquisition system.
3. fixed measurement as claimed in claim 1 is harrowed, and it is characterized in that:
The head of described probe arranges 5 through holes.
4. fixed measurement as claimed in claim 3 is harrowed, and it is characterized in that:
The head of described probe is conical;
Center at the head of described probe arranges a through hole, 4 through holes that are symmetric the circular conical surface setting of the head of described probe.
5. fixed measurement as claimed in claim 1 is harrowed, and it is characterized in that:
Described fixed measurement rake also comprises: connect casing and support;
Described connection casing is circular ring structure; Described stent support is in described circular ring structure;
The probe mounting hole is set on the described support; Described probe is installed in the described probe mounting hole, and the head of described probe is arranged on outside the described probe mounting hole.
6. fixed measurement as claimed in claim 5 is harrowed, and it is characterized in that:
Described fixed measurement rake comprises 8 supports, and at each support 5 probes is set, and is wherein, symmetrical centered by described 8 supports.
7. such as the described fixed measurement rake of claim 1 to 6 any one, it is characterized in that:
The material of described probe is plastics, glass or metal.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201220479433.6U CN202793795U (en) | 2012-09-18 | 2012-09-18 | Fixed measuring rake for measuring pneumatic parameters |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201220479433.6U CN202793795U (en) | 2012-09-18 | 2012-09-18 | Fixed measuring rake for measuring pneumatic parameters |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202793795U true CN202793795U (en) | 2013-03-13 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201220479433.6U Expired - Lifetime CN202793795U (en) | 2012-09-18 | 2012-09-18 | Fixed measuring rake for measuring pneumatic parameters |
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| CN (1) | CN202793795U (en) |
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106289784A (en) * | 2016-08-02 | 2017-01-04 | 中国航空工业集团公司沈阳发动机设计研究所 | A kind of inlet distortion stagnation pressure rake structure |
| CN108709576A (en) * | 2018-06-05 | 2018-10-26 | 中国航发沈阳发动机研究所 | A kind of rake instrument |
| CN108731907A (en) * | 2018-09-05 | 2018-11-02 | 西安远方航空技术发展有限公司 | A kind of duplex measurement rake |
| CN110779725A (en) * | 2019-11-06 | 2020-02-11 | 中国空气动力研究与发展中心低速空气动力研究所 | Pressure measuring device for preventing probe from freezing through rotating rake |
| WO2021067083A1 (en) * | 2019-10-03 | 2021-04-08 | General Electric Company | Probe-based circumferential traversing system |
| CN112834228A (en) * | 2021-01-28 | 2021-05-25 | 中国人民解放军空军工程大学 | Aeroengine air intake scanning measuring device |
| CN116609027A (en) * | 2023-07-14 | 2023-08-18 | 中国空气动力研究与发展中心低速空气动力研究所 | Pressure measuring rake |
-
2012
- 2012-09-18 CN CN201220479433.6U patent/CN202793795U/en not_active Expired - Lifetime
Cited By (12)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106289784A (en) * | 2016-08-02 | 2017-01-04 | 中国航空工业集团公司沈阳发动机设计研究所 | A kind of inlet distortion stagnation pressure rake structure |
| CN108709576A (en) * | 2018-06-05 | 2018-10-26 | 中国航发沈阳发动机研究所 | A kind of rake instrument |
| CN108709576B (en) * | 2018-06-05 | 2021-10-01 | 中国航发沈阳发动机研究所 | Harrow type instrument test structure |
| CN108731907A (en) * | 2018-09-05 | 2018-11-02 | 西安远方航空技术发展有限公司 | A kind of duplex measurement rake |
| CN108731907B (en) * | 2018-09-05 | 2024-02-27 | 西安远方航空技术发展有限公司 | Composite measuring rake |
| WO2021067083A1 (en) * | 2019-10-03 | 2021-04-08 | General Electric Company | Probe-based circumferential traversing system |
| US11187560B2 (en) | 2019-10-03 | 2021-11-30 | General Electric Company | Probe-based circumferential traversing system |
| CN110779725A (en) * | 2019-11-06 | 2020-02-11 | 中国空气动力研究与发展中心低速空气动力研究所 | Pressure measuring device for preventing probe from freezing through rotating rake |
| CN112834228A (en) * | 2021-01-28 | 2021-05-25 | 中国人民解放军空军工程大学 | Aeroengine air intake scanning measuring device |
| CN112834228B (en) * | 2021-01-28 | 2022-12-13 | 中国人民解放军空军工程大学 | Aeroengine air intake scanning measuring device |
| CN116609027A (en) * | 2023-07-14 | 2023-08-18 | 中国空气动力研究与发展中心低速空气动力研究所 | Pressure measuring rake |
| CN116609027B (en) * | 2023-07-14 | 2023-10-20 | 中国空气动力研究与发展中心低速空气动力研究所 | Pressure measuring rake |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CP03 | Change of name, title or address | ||
| CP03 | Change of name, title or address |
Address after: 200241 Minhang District Lianhua Road, Shanghai, No. 3998 Patentee after: AECC COMMERCIAL AIRCRAFT ENGINE Co.,Ltd. Address before: 201109 Shanghai city Minhang District Hongmei Road No. 5696 Room 101 Patentee before: AVIC Commercial Aircraft Engine Co.,Ltd. |
|
| CX01 | Expiry of patent term | ||
| CX01 | Expiry of patent term |
Granted publication date: 20130313 |