CN201637579U - Air supply system of engine air passage flow stabilizing test device - Google Patents
Air supply system of engine air passage flow stabilizing test device Download PDFInfo
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- CN201637579U CN201637579U CN2010201302561U CN201020130256U CN201637579U CN 201637579 U CN201637579 U CN 201637579U CN 2010201302561 U CN2010201302561 U CN 2010201302561U CN 201020130256 U CN201020130256 U CN 201020130256U CN 201637579 U CN201637579 U CN 201637579U
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Abstract
The utility model discloses an air supply system of an engine air passage flow stabilizing test device, which comprises fans, wherein an inlet and an outlet of each fan are respectively communicated with an inner cavity of a simulating cylinder through an air inlet pipeline and an exhaust pipeline. The air supply system of an engine air passage flow stabilizing test device is characterized by comprising the two fans; and one fan is a low-flow fan, the other fan is a high-flow fan, and the two fans are connected in parallel or in series. By adopting the parallel connection or the series connection of the low-flow fan and the high-flow fan, when a low flow is required, the air is supplied by adopting the low-flow fan, and the high-flow fan is closed, thereby favorably ensuring airflow pressure and control precision; and when the high flow is required, the two fans are simultaneously started, thereby ensuring the precision and stability of a test. Accordingly, the utility model expands a range of the engine air passage flow stabilizing test device on the basis of ensuring the precision and stability of the test.
Description
Technical field
The utility model relates to the device that is used for Engine Block Test, especially a kind of supply air system of engine air flue current stabilization test unit.
Background technology
Engine air flue current stabilization test unit can be measured coefficient of flow, the induction swirl ratio of engine cylinder cap entering and exhaust channel and roll stream and flow parameter such as compare.Engine is in order to obtain good dynamic property, economy and emission performance, require engine sufficiently high upper airway flow coefficient of discharge and suitable induction swirl ratio must be arranged, roll parameters such as stream compares, so air flue test stand always is exactly the visual plant that engine development, engine quality detect.Engine air flue current stabilization test unit comprises the complicated flowing test system of a cover such as supply air system, testing table, eddy current momentum meter.Because the blower fan of existing supply air system is monotropic frequency blower fan, if monotropic frequency blower fan is the low discharge blower fan, can only satisfies the test accuracy and the stability requirement of low discharge air-supply, but not reach the requirement of big flow air-supply; If monotropic frequency blower fan is big flow blower fan, can only satisfies the test accuracy and the stability requirement of big flow air-supply, but can not reach the requirement of low discharge air-supply.Therefore, existing supply air system can only satisfy low discharge requirement or big traffic requirement, can't satisfy wide traffic requirement.
Summary of the invention
The purpose of this utility model is to overcome the defective of prior art, and a kind of supply air system of engine air flue current stabilization test unit is provided, and under the prerequisite of warranty test precision and stability, satisfies low discharge and big traffic requirement simultaneously.
To achieve these goals, the technical solution adopted in the utility model is: a kind of supply air system of engine air flue current stabilization test unit, comprise blower fan, the import of this blower fan and outlet are communicated with the inner chamber of simulation cylinder through air inlet pipeline and gas exhaust piping respectively, its key is: comprise two described blower fans, one of them blower fan is the low discharge blower fan, and another is big flow blower fan, and two blower fans are in parallel or connect.
As the preferred version of technique scheme, described low discharge blower fan is the high-pressure low-flow blower fan.
As the preferred version of technique scheme, described big flow blower fan is the low pressure and mass flow blower fan.
Further preferred as above-mentioned preferred version, described low discharge blower fan and big flow blower fan are frequency conversion fan.
In the technique scheme, described air inlet pipeline comprises air inlet T-valve and charge flow rate meter, first mouthful of air inlet T-valve is communicated with the import of described blower fan through tracheae, second mouthful of air inlet T-valve is communicated with through the outlet of tracheae with the charge flow rate meter, and the import of charge flow rate meter is communicated with the inner chamber of simulation cylinder; Described gas exhaust piping comprises exhaust three-way valve and exhaust flow-meter, first mouthful of exhaust three-way valve is communicated with the outlet of described blower fan through tracheae, second mouthful of exhaust three-way valve is communicated with the import of exhaust flow-meter through tracheae, and the outlet of exhaust flow-meter is communicated with the inner chamber of simulation cylinder.
In the technique scheme, between described air inlet T-valve and described charge flow rate meter and between described exhaust three-way valve and described exhaust flow-meter, be provided with the one-level pressurizer tank; Take into account between exhaust flow-meter and the described simulation cylinder at described charge flow rate and to be provided with the secondary pressurizer tank.
Compared with prior art, the utility model has the advantages that: blower fan adopts a low discharge blower fan with a big flow fan parallel-connection or connect, and when requiring low discharge, adopts the low discharge blower fan to blow, close big flow blower fan, well guarantee stream pressure and control accuracy; When requiring big flow, open two blower fans simultaneously, guaranteed the precision and the stability of test.Therefore, the utility model has enlarged the range of engine air flue current stabilization test unit on warranty test precision and stable basis.Simultaneously, adopt the stable of bistable pressing system warranty test air-flow, guarantee precision and the stability tested.
Description of drawings
Fig. 1 is the schematic diagram of the utility model embodiment;
Fig. 2 is two synoptic diagram that blower fan is in series;
Fig. 3 is two synoptic diagram that blower fan is in parallel.
Description of reference numerals:
1-blower fan, 1a-low discharge blower fan, the big flow blower fan of 1b-, 2-exhaust three-way valve, 3-air inlet T-valve, 4-one-level pressurizer tank, 5-exhaust flow-meter, 6-charge flow rate meter, 7-secondary pressurizer tank, 8-testing table, 9-cylinder cap, 10-valve.
Embodiment
Below in conjunction with accompanying drawing embodiment of the present utility model is elaborated:
See Fig. 1 to Fig. 3, the supply air system of engine air flue current stabilization test unit mainly is made up of blower fan 1, air inlet pipeline and gas exhaust piping, and the import of this blower fan 1 and the outlet inner chamber of the simulation cylinder on air inlet pipeline and gas exhaust piping and testing table 8 respectively are communicated with.Blower fan 1 is formed by a low discharge blower fan 1a and a big flow blower fan 1b string (or also) connection, in the present embodiment, low discharge blower fan 1a adopts the high voltage small flow centrifugal ventilation blower, and big flow blower fan 1b adopts the low pressure and mass flow centrifugal fan, and two blower fans are frequency conversion fan.High voltage small flow centrifugal ventilation blower (induction part is a radial air inlet), the flow of output is less, has good stability and higher precision, is fit to low discharge air-supply requirement.Low pressure and mass flow centrifugal fan (induction part is an axial admission), the flow that this blower fan can be exported is bigger, has good stability and higher precision, is fit to big flow air-supply requirement.By adopting two blower fan configurations, when requiring low discharge, adopt the air-supply of low discharge blower fan, close big flow blower fan, well guarantee stream pressure and control accuracy; When requiring big flow, open two blower fans simultaneously, guaranteed the precision and the stability of test.Therefore, on warranty test precision and stable basis, enlarged the range of engine air flue current stabilization test unit.Certainly, low discharge blower fan 1a is except adopting the high voltage small flow centrifugal ventilation blower, can also adopt high-pressure low-flow propeller fan and other low discharge blower fan, big flow blower fan 1b is except adopting the low pressure and mass flow centrifugal fan, can also adopt low pressure and mass flow propeller fan and other big flow blower fan, this it will be apparent to those skilled in the art that.
See Fig. 1, the intake and exhaust pipeline mainly is made up of air inlet T-valve 3, exhaust three-way valve 2, one-level pressurizer tank 4, exhaust flow-meter 5, charge flow rate meter 6, secondary pressurizer tank 7 and valve 10.When carrying out the test of air intake duct current stabilization, air enters the simulation cylinder through the air intake duct of cylinder cap 9, again through secondary pressurizer tank 7, charge flow rate meter 6, one-level pressurizer tank 4 and air inlet T-valve 3, again through the three mouthful discharge of blower fan 1 from exhaust three-way valve 2.When carrying out exhaust duct current stabilization when test, air enters from the 3rd mouthful of air inlet T-valve 3, in blower fan 1, exhaust three-way valve 2, one-level pressurizer tank 4, exhaust flow-meter 5 and secondary pressurizer tank 7 enter the simulation cylinder, discharges from the exhaust duct of cylinder cap 9 again.Adopt the stable of bistable pressing system warranty test air-flow, guarantee precision and the stability tested.
Only be specific embodiment of the utility model below, do not limit protection domain of the present utility model with this; Any replacement and the improvement done on the basis of not violating the utility model design all belong to protection domain of the present utility model.
Claims (6)
1. the supply air system of an engine air flue current stabilization test unit, comprise blower fan, the import of this blower fan and outlet are communicated with the inner chamber of simulation cylinder through air inlet pipeline and gas exhaust piping respectively, it is characterized in that: comprise two described blower fans, one of them blower fan is the low discharge blower fan, another is big flow blower fan, and two blower fans are in parallel or connect.
2. the supply air system of engine air flue current stabilization test unit according to claim 1 is characterized in that: described low discharge blower fan is the high-pressure low-flow blower fan.
3. the supply air system of engine air flue current stabilization test unit according to claim 1 is characterized in that: described big flow blower fan is the low pressure and mass flow blower fan.
4. according to the supply air system of the arbitrary described engine air flue current stabilization test unit of claim 1 to 3, it is characterized in that: described low discharge blower fan and big flow blower fan are frequency conversion fan.
5. the supply air system of engine air flue current stabilization test unit according to claim 4, it is characterized in that: described air inlet pipeline comprises air inlet T-valve and charge flow rate meter, first mouthful of air inlet T-valve is communicated with the import of described blower fan through tracheae, second mouthful of air inlet T-valve is communicated with through the outlet of tracheae with the charge flow rate meter, and the import of charge flow rate meter is communicated with the inner chamber of simulation cylinder; Described gas exhaust piping comprises exhaust three-way valve and exhaust flow-meter, first mouthful of exhaust three-way valve is communicated with the outlet of described blower fan through tracheae, second mouthful of exhaust three-way valve is communicated with the import of exhaust flow-meter through tracheae, and the outlet of exhaust flow-meter is communicated with the inner chamber of simulation cylinder.
6. the supply air system of engine air flue current stabilization test unit according to claim 5 is characterized in that: be provided with the one-level pressurizer tank between described air inlet T-valve and described charge flow rate meter and between described exhaust three-way valve and described exhaust flow-meter; Take into account between described exhaust flow-meter and the described simulation cylinder at described charge flow rate and to be provided with the secondary pressurizer tank.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010201302561U CN201637579U (en) | 2010-03-09 | 2010-03-09 | Air supply system of engine air passage flow stabilizing test device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010201302561U CN201637579U (en) | 2010-03-09 | 2010-03-09 | Air supply system of engine air passage flow stabilizing test device |
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| CN201637579U true CN201637579U (en) | 2010-11-17 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN2010201302561U Expired - Fee Related CN201637579U (en) | 2010-03-09 | 2010-03-09 | Air supply system of engine air passage flow stabilizing test device |
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Cited By (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104614193A (en) * | 2014-12-17 | 2015-05-13 | 中国石油天然气股份有限公司 | Test system of simulation well |
| CN105388018A (en) * | 2015-12-25 | 2016-03-09 | 中北大学 | Total pressure difference airway tumble test apparatus for engine |
| CN107843434A (en) * | 2017-10-18 | 2018-03-27 | 西安航天动力试验技术研究所 | Liquid propellant rocket engine test low temperature low discharge chilldown system and forecooling method |
| CN108254197A (en) * | 2017-12-08 | 2018-07-06 | 中国北方发动机研究所(天津) | A kind of human bronchial epithelial cells optic test probe material processing unit |
| CN109405916A (en) * | 2018-10-17 | 2019-03-01 | 合肥学院 | Double-forward-flow testing device for check valve of cylinder head cover |
| CN110108493A (en) * | 2019-04-02 | 2019-08-09 | 中国北方发动机研究所(天津) | A kind of In-Cylinder Flow analysis visualization measuring device |
| CN113945385A (en) * | 2021-09-21 | 2022-01-18 | 中国航空工业集团公司西安飞机设计研究所 | Model system for jet engine and air inlet channel ground rack combined test |
| CN114184240A (en) * | 2021-11-26 | 2022-03-15 | 中国北方发动机研究所(天津) | Gas flow measuring device applicable to rotary cylinder axial engine |
| CN114216684A (en) * | 2021-12-24 | 2022-03-22 | 中国人民解放军陆军军事交通学院 | Test system for testing plateau low-pressure transient performance of engine |
-
2010
- 2010-03-09 CN CN2010201302561U patent/CN201637579U/en not_active Expired - Fee Related
Cited By (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104614193A (en) * | 2014-12-17 | 2015-05-13 | 中国石油天然气股份有限公司 | Test system of simulation well |
| CN105388018A (en) * | 2015-12-25 | 2016-03-09 | 中北大学 | Total pressure difference airway tumble test apparatus for engine |
| CN107843434A (en) * | 2017-10-18 | 2018-03-27 | 西安航天动力试验技术研究所 | Liquid propellant rocket engine test low temperature low discharge chilldown system and forecooling method |
| CN107843434B (en) * | 2017-10-18 | 2019-07-16 | 西安航天动力试验技术研究所 | The small flow chilldown system of liquid propellant rocket engine test low temperature and forecooling method |
| CN108254197A (en) * | 2017-12-08 | 2018-07-06 | 中国北方发动机研究所(天津) | A kind of human bronchial epithelial cells optic test probe material processing unit |
| CN109405916A (en) * | 2018-10-17 | 2019-03-01 | 合肥学院 | Double-forward-flow testing device for check valve of cylinder head cover |
| CN110108493A (en) * | 2019-04-02 | 2019-08-09 | 中国北方发动机研究所(天津) | A kind of In-Cylinder Flow analysis visualization measuring device |
| CN113945385A (en) * | 2021-09-21 | 2022-01-18 | 中国航空工业集团公司西安飞机设计研究所 | Model system for jet engine and air inlet channel ground rack combined test |
| CN113945385B (en) * | 2021-09-21 | 2024-04-09 | 中国航空工业集团公司西安飞机设计研究所 | Model system for jet engine and air inlet channel ground bench combined test |
| CN114184240A (en) * | 2021-11-26 | 2022-03-15 | 中国北方发动机研究所(天津) | Gas flow measuring device applicable to rotary cylinder axial engine |
| CN114216684A (en) * | 2021-12-24 | 2022-03-22 | 中国人民解放军陆军军事交通学院 | Test system for testing plateau low-pressure transient performance of engine |
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| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20101117 Termination date: 20150309 |
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| EXPY | Termination of patent right or utility model |