CN100557404C - The draught fan performance test device that the inlet and outlet of air compartment formula are general - Google Patents
The draught fan performance test device that the inlet and outlet of air compartment formula are general Download PDFInfo
- Publication number
- CN100557404C CN100557404C CNB2006100291125A CN200610029112A CN100557404C CN 100557404 C CN100557404 C CN 100557404C CN B2006100291125 A CNB2006100291125 A CN B2006100291125A CN 200610029112 A CN200610029112 A CN 200610029112A CN 100557404 C CN100557404 C CN 100557404C
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- China
- Prior art keywords
- air compartment
- pressure
- test
- airduct
- air
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Classifications
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04D—NON-POSITIVE-DISPLACEMENT PUMPS
- F04D27/00—Control, e.g. regulation, of pumps, pumping installations or pumping systems specially adapted for elastic fluids
- F04D27/001—Testing thereof; Determination or simulation of flow characteristics; Stall or surge detection, e.g. condition monitoring
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F05—INDEXING SCHEMES RELATING TO ENGINES OR PUMPS IN VARIOUS SUBCLASSES OF CLASSES F01-F04
- F05D—INDEXING SCHEME FOR ASPECTS RELATING TO NON-POSITIVE-DISPLACEMENT MACHINES OR ENGINES, GAS-TURBINES OR JET-PROPULSION PLANTS
- F05D2260/00—Function
- F05D2260/12—Testing on a test bench
Abstract
The draught fan performance test device that the inlet and outlet of a kind of air compartment formula are general, it comprises airduct and general air compartment; Casing at air compartment is externally connected with the flow differential pressure pickup, air compartment static pressure, total-pressure probe, air compartment static pressure test transfer valve and air compartment stagnation pressure test transfer valve.Transfer valve is T-valve, and the air compartment static pressure test switches spool I, is connected with the high-pressure side of static pressure transducer by pipeline, and spool II is connected with the air compartment static opening by pipeline, and spool III communicates with atmosphere; The test of air compartment stagnation pressure is switched spool I and is connected with the low pressure end of static pressure transducer by pipeline, and spool II is connected with air compartment stagnation pressure gaging hole by pipeline, and spool III communicates with atmosphere.Airduct is a packaged type, convert exhaust air compartment test unit to from air inlet air compartment test unit, only needing that removable airduct is moved to opposite side from air compartment one side installs, the position of compartment pressure transfer valve switches to the exhaust system test position from the air inlet testing position, and all testing sensor instrument do not need change.
Description
Technical field:
The present invention relates to the general draught fan performance test device of a kind of air compartment formula inlet and outlet, belong to the draught fan performance test technical field.
Background technology:
At present, general air compartment formula draught fan performance test device has two kinds in air inlet test unit and exhaust system test device.And two cover proving installations use identical instrument and device, cause instrument and equipment to waste greatly, and simultaneously, two cover proving installation floor areas are big, make experimental space more nervous.Discover two cover test units, configuration aspects is very similar, if two cover proving installations can be merged into a covering device, not only can economize on the use of funds, and the test unit floor area will reduce half, materials used and test macro instrument reduce by a cover, and apparatus function but can enlarge (inlet and outlet are dual-purpose).
Summary of the invention
For overcoming above-mentioned shortcoming, the present invention proposes the general draught fan performance test device of a kind of air compartment formula inlet and outlet.It is the comprehensive improvement to air compartment formula air inlet draught fan performance test device and air compartment formula air exhauster performance testing device structure.
Start with from structure analysis, can obtain the identical point and the difference of two kinds of proving installations, identical point is: the air compartment of two kinds of proving installations is closely similar on version, forms by nozzle, screens, nozzle is identical with the relative position of screens, and air flow direction is also consistent during test.Difference is: the exhaust air compartment is terminal for contraction-like, screens is different with the relative distance of nozzle, air compartment end face before and after the nozzle, the test position of inlet and outlet compartment pressure is also different with relative distance, after air inlet air compartment temperature test is positioned at nozzle, before exhaust air compartment temperature test then is positioned at nozzle.Find from above contrast, the general air compartment of design inlet and outlet, if between the nozzle, screens between distance and screens and the air compartment both ends of the surface apart from the requirement that can satisfy two air compartments simultaneously, then air compartment can be shared; Exhaust air compartment static pressure and air inlet air compartment total pressure measurement distributing position can remain unchanged, but need gauge tap conversion when test air inlet or exhaust system test; Owing to need calculate the density before the nozzle during test of exhaust air compartment, before temperature point position can place nozzle, concerning the test of air inlet air compartment, can not influence draught fan performance test yet, because consider from the angle of energy, the gas that flows through the nozzle front and back does not have outside energy and adds, the just mutual conversion between gas kinetic energy, potential energy, the interior energy homenergic, the total energy of gas does not change, so the temperature of gas can not change before and after the nozzle; Air compartment pressure reduction test position can be constant.The air compartment that obtains thus can be used as the general air compartment of inlet and outlet.Accessory fan, air quantity damper and duct coupling can be formed portable airduct, can install by flange is convenient in the air compartment both sides.
Basic ideas of the present invention are: the air compartment inner structure is constant, and only the relative distance with nozzle and front and back screens and air compartment end face changes, to satisfy the needs of two kinds of different air compartments; Exhaust air compartment static pressure and air inlet air compartment total pressure measurement distributing position can remain unchanged, but need gauge tap conversion when test air inlet or exhaust; Temperature point position, air compartment pressure reduction test position can be constant; Airduct with accessory fan, air quantity damper and duct coupling are formed is made into the packaged type airduct.
The draught fan performance test device that the inlet and outlet of air compartment formula are general, it comprises airduct and general air compartment; Airduct is by exhaust air compartment airduct, the side of change, garden airduct, adjusting valve, the Fang Bianyuan airduct, accessory fan, air inlet air compartment airduct connects to form successively, air compartment has the air compartment casing, and the air compartment casing is interior by the air compartment static opening, screens before the nozzle, the air compartment temperature point, flow pressure reduction gaging hole, nozzle, screens behind the nozzle, air compartment stagnation pressure gaging hole is formed in regular turn, is externally connected with the flow differential pressure pickup, air compartment static pressure, total-pressure probe at the casing of air compartment; It is characterized in that:
Airduct is a packaged type, when making the air inlet draught fan performance test, the air inlet air compartment airduct end of airduct is connected with the end face of air compartment casing near air compartment static opening one side by flange, when doing the air exhauster performance test, the airduct translation, exhaust air compartment airduct end is connected with the end face of air compartment casing near air compartment stagnation pressure gaging hole one side by flange;
Outside the air compartment casing, also be connected with air compartment static pressure test transfer valve and air compartment stagnation pressure test transfer valve.
Air compartment static pressure test transfer valve and air compartment stagnation pressure test transfer valve are T-valve, the air compartment static pressure test switches spool I, be connected by the high-pressure side of pipeline with air compartment static pressure, total-pressure probe, the air compartment static pressure test switches spool II and is connected with the air compartment static opening by pipeline, and the air compartment static pressure test switches spool III and communicates with atmosphere; The test of air compartment stagnation pressure is switched spool I and is connected by the low pressure end of pipeline with air compartment static pressure, total-pressure probe, and the test of air compartment stagnation pressure is switched spool II and is connected with air compartment stagnation pressure gaging hole by pipeline, and the test of air compartment stagnation pressure is switched spool III and communicated with atmosphere.
Airduct of the present invention is a packaged type, and air compartment is general air compartment, can realize two kinds of purposes of a set of equipment, both can test, can test the air exhauster performance again, save instrument and equipment the air inlet fan performance, reduce floor area, flexible operation, easy to use.
Description of drawings
The invention will be further described below in conjunction with drawings and Examples.
Accompanying drawing is an one-piece construction synoptic diagram of the present invention.
1. exhaust air compartment airduct, the 2. side of change, garden airduct, 3. adjusting valve, 4. square change garden airduct, 5. accessory fan, 6. air inlet air compartment airduct, 7. air compartment casing, 8. air compartment static opening, 9. screens before the nozzle, 10. air compartment temperature point, 11. flow pressure reduction gaging holes, 12. nozzles, 13. screens behind the nozzle, 14 air compartment stagnation pressure gaging holes., 15 air compartment static pressure test transfer valves., 16. air compartment stagnation pressure test transfer valve, 17. flow differential pressure pickups, 18. air compartment static pressure, total-pressure probe.
Wherein 1-6 has formed packaged type airduct of the present invention, and 7-14 has formed air compartment, and 15-18 is pressure switch test parts.
When air inlet air compartment test unit converts exhaust air compartment test unit to, only need that removable airduct is moved to opposite side from air compartment one side (the accompanying drawing shown in the dotted line) is installed, the position of compartment pressure transfer valve switches to the exhaust system test position from the air inlet testing position, all testing sensor instrument do not need change, so promptly finish from the conversion of air inlet air compartment test unit to exhaust air compartment test unit.
Embodiment
The draught fan performance test device that the inlet and outlet of air compartment formula are general, it comprises airduct and general air compartment; Airduct is by exhaust air compartment airduct, the side of change, garden airduct, adjusting valve, the Fang Bianyuan airduct, accessory fan, air inlet air compartment airduct connects to form successively, air compartment has the air compartment casing, and the air compartment casing is interior by the air compartment static opening, screens before the nozzle, the air compartment temperature point, flow pressure reduction gaging hole, nozzle, screens behind the nozzle, air compartment stagnation pressure gaging hole is formed in regular turn, is externally connected with the flow differential pressure pickup, air compartment static pressure, total-pressure probe at the casing of air compartment; Outside the air compartment casing, also be connected with air compartment static pressure test transfer valve and air compartment stagnation pressure test transfer valve.Air compartment static pressure test transfer valve and air compartment stagnation pressure test transfer valve are T-valve, the air compartment static pressure test switches spool I, high-pressure side by pipeline air compartment static pressure, total-pressure probe connects, the air compartment static pressure test switches spool II and is connected with the air compartment static opening by pipeline, and the air compartment static pressure test switches spool III and communicates with atmosphere; The test of air compartment stagnation pressure is switched spool I and is connected by the low pressure end of pipeline with air compartment static pressure, total-pressure probe, and the test of air compartment stagnation pressure is switched spool II and is connected with air compartment stagnation pressure gaging hole by pipeline, and the test of air compartment stagnation pressure is switched spool III and communicated with atmosphere.Three pressure-measuring-points are arranged, flow pressure reduction, air compartment static pressure and stagnation pressure in the general air compartment.
Airduct is a packaged type, when making the air inlet draught fan performance test, only needs test traffic pressure reduction and air compartment stagnation pressure.The air inlet air compartment airduct end of airduct is connected with the end face of air compartment casing near air compartment static opening one side by flange, and the opposite side of air compartment casing connects the test blower fan; Air compartment static pressure test transfer valve 15, with air compartment stagnation pressure test transfer valve 16, switch to the air inlet test method, the spool I of air compartment static pressure test transfer valve 15 is communicated with spool III, and spool III is for leading to atmosphere, the other end of spool I communicates with the high-pressure side of total-pressure probe 18, the spool I of air compartment stagnation pressure test transfer valve 16 is communicated with spool II, and spool I communicates with the sensor low pressure end, and spool II communicates with the air compartment pitot hole, all the other Kong Jun are plugged, and can record air inlet air compartment stagnation pressure like this.
When doing the air exhauster performance test, only need test traffic pressure reduction and air compartment static pressure.The airduct translation is connected by flange exhaust air compartment airduct end with the end face of air compartment casing near air compartment stagnation pressure gaging hole one side; The opposite side of air compartment casing connects the test blower fan; Air compartment static pressure test transfer valve 15 and air compartment stagnation pressure test transfer valve 16, switch to the exhaust system test mode, the spool I of air compartment static pressure test transfer valve 15 is communicated with spool II, the other end of spool I communicates with the high-pressure side of total-pressure probe 18, and spool II communicates with the air compartment baroport, and the spool I of air compartment stagnation pressure test transfer valve 16 is communicated with spool III, the other end of spool I communicates with the sensor low pressure end, spool III is for leading to atmosphere, and all the other Kong Jun are plugged, and can record exhaust air compartment static pressure thus.
When air inlet air compartment test unit converts exhaust air compartment test unit to, only needing that removable airduct is moved to opposite side from air compartment one side installs, the position of compartment pressure transfer valve switches to the exhaust system test position from the air inlet testing position, all testing sensor instrument do not need change, so promptly finish from the conversion of air inlet air compartment test unit to exhaust air compartment test unit.
Flexible operation of the present invention is easy to use, and function enlarges floor area and reduces, and can be widely used in blower fan inlet and outlet performance test.
Claims (2)
1. the general draught fan performance test device of air compartment formula inlet and outlet, it comprises airduct and general air compartment; Airduct is by exhaust air compartment airduct, the side of change, garden airduct, adjusting valve, the Fang Bianyuan airduct, accessory fan, air inlet air compartment airduct connects to form successively, air compartment has the air compartment casing, and the air compartment casing is interior by the air compartment static opening, screens before the nozzle, the air compartment temperature point, flow pressure reduction gaging hole, nozzle, screens behind the nozzle, air compartment stagnation pressure gaging hole is formed in regular turn, is externally connected with the flow differential pressure pickup, air compartment static pressure, total-pressure probe at the casing of air compartment; It is characterized in that:
A) airduct is a packaged type, when making the air inlet draught fan performance test, the air inlet air compartment airduct end of airduct is connected with the end face of air compartment casing near air compartment static opening one side by flange, when doing the air exhauster performance test, the airduct translation, exhaust air compartment airduct end is connected with the end face of air compartment casing near air compartment stagnation pressure gaging hole one side by flange;
B) outside the air compartment casing, also be connected with air compartment static pressure test transfer valve and air compartment stagnation pressure test transfer valve.
2. the draught fan performance test device that a kind of air compartment formula according to claim 1 inlet and outlet are general, it is characterized in that: air compartment static pressure test transfer valve and air compartment stagnation pressure test transfer valve are T-valve, the air compartment static pressure test switches spool I, be connected by the high-pressure side of pipeline with air compartment static pressure, total-pressure probe, the air compartment static pressure test switches spool II and is connected with the air compartment static opening by pipeline, and the air compartment static pressure test switches spool III and communicates with atmosphere; The test of air compartment stagnation pressure is switched spool I and is connected by the low pressure end of pipeline with air compartment static pressure, total-pressure probe, and the test of air compartment stagnation pressure is switched spool II and is connected with air compartment stagnation pressure gaging hole by pipeline, and the test of air compartment stagnation pressure is switched spool III and communicated with atmosphere.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB2006100291125A CN100557404C (en) | 2006-07-19 | 2006-07-19 | The draught fan performance test device that the inlet and outlet of air compartment formula are general |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB2006100291125A CN100557404C (en) | 2006-07-19 | 2006-07-19 | The draught fan performance test device that the inlet and outlet of air compartment formula are general |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN101109672A CN101109672A (en) | 2008-01-23 |
| CN100557404C true CN100557404C (en) | 2009-11-04 |
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| Application Number | Title | Priority Date | Filing Date |
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| CNB2006100291125A Expired - Fee Related CN100557404C (en) | 2006-07-19 | 2006-07-19 | The draught fan performance test device that the inlet and outlet of air compartment formula are general |
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| CN (1) | CN100557404C (en) |
Cited By (1)
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| CN105606389A (en) * | 2016-02-17 | 2016-05-25 | 江西理工大学 | Automatic radiator performance detection device |
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| CN102506949B (en) * | 2011-09-29 | 2013-05-29 | 常州豪邦纳米科技涂料有限公司 | System for automatically monitoring blast volume |
| CN103883549B (en) * | 2014-02-21 | 2017-04-19 | 浙江上风高科专风实业有限公司 | Device and method for testing back pressures of fans of tunnels of subways |
| CN104280069B (en) * | 2014-09-26 | 2017-05-31 | 博罗县仁凯工控器材有限公司 | A kind of air pressure air flow test device and method of testing |
| CN104568489A (en) * | 2015-01-09 | 2015-04-29 | 无锡佳龙换热器股份有限公司 | Cooling air circulation system for performance test of heat exchanger |
| CN104596785A (en) * | 2015-01-09 | 2015-05-06 | 无锡佳龙换热器股份有限公司 | Heat exchanger performance test bench |
| CN107725461B (en) * | 2017-11-23 | 2019-04-05 | 上海胜战科技发展有限公司 | A kind of draught fan performance test device that chamber type air inlet and outlet are general |
| CN111693248A (en) * | 2020-04-22 | 2020-09-22 | 宁波锚点驱动技术有限公司 | Test method for small-air-volume fan |
| CN113551930B (en) * | 2021-09-03 | 2022-08-02 | 贵州黔新哲米科技有限公司 | Electromechanical device fault detector |
| EP4177474B1 (en) * | 2021-11-03 | 2024-02-21 | Talleres Zitrón, S.A. | Test station for a fan and method for testing a fan using said test station |
| CN114962314B (en) * | 2022-06-15 | 2023-01-24 | 皇家动力(武汉)有限公司 | Pneumatic performance testing device of high-speed axial flow fan |
-
2006
- 2006-07-19 CN CNB2006100291125A patent/CN100557404C/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105606389A (en) * | 2016-02-17 | 2016-05-25 | 江西理工大学 | Automatic radiator performance detection device |
| CN105606389B (en) * | 2016-02-17 | 2018-05-01 | 江西理工大学 | A kind of radiator performance automatic detection device |
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| Publication number | Publication date |
|---|---|
| CN101109672A (en) | 2008-01-23 |
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Granted publication date: 20091104 Termination date: 20120719 |