CN113819086A - Method for testing air volume change value of traction fan - Google Patents
Method for testing air volume change value of traction fan Download PDFInfo
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- CN113819086A CN113819086A CN202111317116.4A CN202111317116A CN113819086A CN 113819086 A CN113819086 A CN 113819086A CN 202111317116 A CN202111317116 A CN 202111317116A CN 113819086 A CN113819086 A CN 113819086A
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- 238000012360 testing method Methods 0.000 title claims abstract description 107
- 230000008859 change Effects 0.000 title claims abstract description 38
- 238000000034 method Methods 0.000 title claims abstract description 35
- 238000001514 detection method Methods 0.000 claims abstract description 11
- 238000012544 monitoring process Methods 0.000 claims abstract description 4
- 230000007246 mechanism Effects 0.000 claims description 16
- 230000000694 effects Effects 0.000 claims description 6
- 238000009434 installation Methods 0.000 claims description 3
- 230000003993 interaction Effects 0.000 claims description 3
- 230000003137 locomotive effect Effects 0.000 description 7
- 238000010998 test method Methods 0.000 description 4
- 238000013461 design Methods 0.000 description 3
- 238000005516 engineering process Methods 0.000 description 3
- 238000011161 development Methods 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 238000007689 inspection Methods 0.000 description 2
- 238000004519 manufacturing process Methods 0.000 description 2
- 230000001105 regulatory effect Effects 0.000 description 1
- 238000012827 research and development Methods 0.000 description 1
- 238000004088 simulation Methods 0.000 description 1
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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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- General Engineering & Computer Science (AREA)
- Aerodynamic Tests, Hydrodynamic Tests, Wind Tunnels, And Water Tanks (AREA)
Abstract
The invention discloses a method for testing an air volume change value of a traction fan, and particularly relates to the technical field of testing the air volume change value of the traction fan, wherein the method comprises the following specific steps: an air volume regulator is researched and prepared at one end of the air outlet of the pipeline, a set of test control method is formulated and prepared during data monitoring, and the air volume regulator and the test control method are mutually matched to develop a test technical scheme. The invention can freely regulate and control the change of the test air volume value, simulate the working state of the traction fan under different working conditions, ensure the accuracy of test data and the reliability of product quality, solve the test problems of uncontrollable air volume and unstable air flow of the original test scheme, realize the adjustability of the test air volume change and meet the working target of quality requirement of detection data.
Description
Technical Field
The invention relates to the technical field of testing of air volume change values of traction fans, in particular to a method for testing an air volume change value of a traction fan.
Background
The traction fan is an important accessory in a locomotive traction system, and the product quality of the traction fan can directly influence the traction effect of the locomotive during operation. Therefore, in the manufacturing inspection of the traction fan, the important link for ensuring the qualified product quality of the traction fan is to ensure that the test data of the fan air volume change value meets the technical requirements of different traction loads of a locomotive. Therefore, how to realize the change control of the air volume of the traction fan and measure test data under different load states is a key problem to be solved by the invention.
At present, a pipeline type constant air volume test scheme is generally adopted for the test of the air volume of the traction fan, and the traction fan is arranged at an air inlet of a pipeline to carry out an air volume detection test (see figure 1). During testing, the position to be tested at the opening of the air duct is connected with the test bed through a pitot tube, test data to be tested are directly transmitted to the PC end of the controller, and therefore the tested test data cannot control air quantity and has the condition of unstable air flow. Because the size of the air volume load can not be adjusted in the test mode, the test data of the air volume change value under different working conditions can not be measured, and therefore the inspection requirement of the product quality of the traction fan can not be met.
From the above, the biggest shortcomings of the existing test schemes are: the change of the air volume cannot be controlled and adjusted; the working state of the locomotive traction fan under different working conditions cannot be simulated; the test parameters of the required air volume change value can not be measured. Therefore, the quality requirements of the traction fan product cannot be ensured by the obtained test data in the existing detection technical scheme. Therefore, the method for testing the air volume change value of the traction fan is the primary task at present.
In summary, the following steps: the method aims to solve the problem that the air volume change cannot be controlled and adjusted in the existing test, and develops a method for testing the air volume change value of a traction fan, and the main problems to be solved are as follows:
1. an optimized effective air volume regulator is required to be configured, the air volume required by the test can be freely adjusted, so that the working states under different working conditions are simulated, and the accuracy of test data is ensured.
2. A reasonable and practical test control method needs to be formulated, the simplest, most convenient and most direct operation method is sought, and the problems of uncontrollable air volume and unstable air flow during the test are thoroughly solved.
3. The adopted air volume regulator must ensure the configuration functions of optimized design, novel structure and low cost. The established test control method has to meet the regulation and control effects of reasonable scheme, simple operation, safety and practicability.
Disclosure of Invention
The invention aims to provide a method for testing the air volume change value of a traction fan, which can freely regulate and control the change of the test air volume value, simulate the working state of the traction fan under different working conditions so as to ensure the accuracy of test data and the reliability of product quality, solve the test problems of uncontrollable air volume and unstable air flow of the original test scheme, realize the adjustable change of the test air volume and meet the working target of quality requirement of the detection data.
In order to achieve the above purpose, the invention provides the following technical scheme: a method for testing the air volume change value of a traction fan comprises the following specific steps: an optimized effective air volume regulator is researched and prepared at one end of the pipeline air outlet, a set of reasonable and practical test control method is formulated and prepared during data monitoring, and the optimized effective air volume regulator and the set of reasonable and practical test control method are mutually matched to develop a brand-new test technical scheme.
Preferably, the air volume regulator consists of a pipeline interface, an air volume control body, a guide shaft, a rotary guide mechanism, a locking nut, a hand wheel, an end cover and a bolt.
Preferably, the connection mode among each part of the air volume regulator is as follows: the air volume control body is connected with the rotating mechanism through a threaded hole, the rotating mechanism is connected with the hand wheel and the end cover through bolts, and the guide shaft and the locking nut are used for connecting the pipeline interface with the air volume control body and the rotating mechanism.
Preferably, the position of the air volume body is adjusted and changed through the interaction of all parts in the air volume regulator, so that the effect of changing the air volume of the air outlet is achieved, and the test purpose of adjustable measured air volume is realized.
Preferably, the experimental manipulation method of the test scheme is as follows: when the traction fan is tested, the hand wheel is rotated to drive the rotating mechanism to move back and forth, so that the air volume control body is driven to move back and forth, when the air volume control body moves backwards, the distance between the air volume control body and the port of the pipeline is far, the air volume of the air outlet is large, otherwise, when the air volume control body moves forwards, the distance between the air volume control body and the port of the pipeline is near, the air volume of the air outlet is small, and therefore the control function of the test air volume change value is achieved, and the test target with accurate detection data is achieved.
Preferably, for the stability of the air current dynamic state when guaranteeing operation test, the operating condition of simulation traction fan under different operating modes measures more accurate test data, will control the front end design of the amount of wind body for the toper structure, in addition, for guaranteeing that the installation is firm reliable between air regulator and the pipeline interface, carry out the moment fastening to lock nut, ensure to detect control system's stability.
In the technical scheme, the invention provides the following technical effects and advantages:
1. the invention develops a method for testing the air volume change value in the production test of the traction fan, and the technical scheme can freely regulate and control the change of the test air volume value and simulate the working states of the traction fan under different working conditions so as to ensure the accuracy of test data and the reliability of product quality.
2. The research and development of the test method solve the test problems of uncontrollable air volume and unstable air flow of the original test scheme, and realize the working targets of adjustable test air volume change and detection data meeting quality requirements.
3. The configuration of the air volume regulator and the application of the test control method in the test method thoroughly change the test mode of the original traction fan, further improve the technical level of the test field of the locomotive traction fan, and lay a good foundation for widening the test technology of similar products in the future.
4. The development of the test method has the advantages of novel design idea, reasonable structural layout, effective and practical operation, stable and reliable technology, effectively improves the detection test level of the traction fan product, is a very practical innovative patent technology, plays a due role in the aspect of locomotive traction fan product test, and is widely applied to practical use.
Drawings
In order to more clearly illustrate the embodiments of the present application or technical solutions in the prior art, the drawings needed to be used in the embodiments will be briefly described below, and it is obvious that the drawings in the following description are only some embodiments described in the present invention, and other drawings can be obtained by those skilled in the art according to the drawings.
FIG. 1 is a schematic diagram of a prior art traction fan test;
FIG. 2 is a diagram of a testing technique of the present invention;
fig. 3 is a structural view of an air volume damper of the present invention.
Description of reference numerals:
the device comprises a pipeline interface 1, an air volume control body 2, a guide shaft 3, a rotary guide mechanism 4, a locking nut 5, a hand wheel 6, an end cover 7 and a bolt 8.
Detailed Description
In order to make the technical solutions of the present invention better understood, those skilled in the art will now describe the present invention in further detail with reference to the accompanying drawings.
Example 1:
as shown in fig. 1-3, the invention provides a method for testing an air volume change value of a traction fan, which comprises the following specific steps: an optimized effective air volume regulator is researched and prepared at one end of a pipeline air outlet, a reasonable and practical test control method is formulated and prepared during data monitoring, the optimized effective air volume regulator and the test control method are mutually matched to develop a brand-new test technical scheme, the change of the test air volume value can be freely regulated and controlled, and the working states of a traction fan under different working conditions are simulated to ensure the accuracy of test data and the reliability of product quality.
Air volume regulator comprises pipeline interface 1, control amount of wind 2, guiding axle 3, rotation guide mechanism 4, lock nut 5, hand wheel 6, end cover 7, bolt 8, and the connected mode between air volume regulator each part is: the air volume control body 2 is connected with the rotating mechanism 4 through a threaded hole, the rotating mechanism 4 is connected with a hand wheel 6 and an end cover 7 through a bolt 8, the guide shaft 3 and the locking nut 5 are used for connecting the pipeline interface 1 with the air volume control body 2 and the rotating mechanism 4, the guide shaft 3 penetrates through a flange plate hole of the pipeline interface 1 when the air volume regulator is configured and installed, the locking nut 5 is used for fastening, the firm connection between the pipeline interface 1 and the air volume regulator is ensured, and the phenomenon that an operation part is not loosened is ensured.
The position of the air volume body 2 is adjusted and changed through the interaction of all parts in the air volume regulator, so that the effect of changing the air volume of the air outlet is achieved, and the purpose of testing the adjustable air volume to be measured is achieved.
Example 2:
the test control method of the test scheme comprises the following steps: when a traction fan test is carried out, the hand wheel 6 is rotated to drive the rotating mechanism 4 to move back and forth, so that the air volume control body 2 is driven to move back and forth, when the air volume control body 2 moves backwards, the distance from the end port of the pipeline is far, the air volume of the air outlet is large, otherwise, when the air volume control body 2 moves forwards, the distance from the end port of the pipeline is near, the air volume of the air outlet is small, and therefore the control function of the test air volume change value is achieved, and the test target with accurate detection data is achieved.
In addition, in order to ensure the stability of airflow state during operation test, the working state of the traction fan under different working conditions is simulated, more accurate test data is measured, the front end of the air volume control body 2 is designed into a conical structure, and in addition, in order to ensure that the installation between the air volume regulator and the pipeline interface 1 is firm and reliable, the locking nut 5 is subjected to torque fastening, and the stability of the detection control system is ensured.
The test control step of the traction fan comprises the following steps:
firstly, a traction fan is reliably connected with a pipeline air inlet and a pitot tube used for measuring positions with a test bed, then a power-on test is carried out, then an air volume regulator is controlled, and a hand wheel 6 is rotated to force the air volume control body 2 to move back and forth so as to change the air volume of an air outlet. When the air volume body 2 is controlled to move forwards, the distance between the air volume body and the end opening of the pipeline is gradually reduced, and the air volume at the air outlet is reduced; when the air volume 2 is controlled to move backwards, the distance from the air volume 2 to the end of the pipeline is gradually far away, and the air volume of the air outlet is increased.
And secondly, when testing data of different air volume sizes are detected, the air volume change value needs to be adjusted to simulate the working state of the locomotive traction fan under different working conditions, and the tested traction fan can be confirmed to be a product with qualified quality after the obtained test value meets the technical requirements of the product.
The development of the test method solves the test problems of uncontrollable air volume and unstable air flow of the original test scheme, realizes adjustable change of test air volume, and meets the working target of quality requirement of test data.
While certain exemplary embodiments of the present invention have been described above by way of illustration only, it will be apparent to those of ordinary skill in the art that the described embodiments may be modified in various different ways without departing from the spirit and scope of the invention. Accordingly, the drawings and description are illustrative in nature and should not be construed as limiting the scope of the invention.
Claims (6)
1. A method for testing the air volume change value of a traction fan is characterized by comprising the following steps: the method comprises the following specific steps: an air volume regulator is researched and prepared at one end of the air outlet of the pipeline, a set of test control method is formulated and prepared during data monitoring, and the air volume regulator and the test control method are mutually matched to develop a test technical scheme.
2. The method for testing the air volume change value of the traction fan according to claim 1, characterized in that: the air volume regulator consists of a pipeline connector (1), an air volume control body (2), a guide shaft (3), a rotary guide mechanism (4), a locking nut (5), a hand wheel (6), an end cover (7) and a bolt (8).
3. The method for testing the air volume change value of the traction fan according to claim 2, characterized in that: the connection mode among each part of the air volume regulator is as follows: the air volume control body (2) is connected with the rotating mechanism (4) through a threaded hole, the rotating mechanism (4) is connected with the hand wheel (6) and the end cover (7) through a bolt (8), and the guide shaft (3) and the locking nut (5) are used for connecting the pipeline interface (1) with the air volume control body (2) and the rotating mechanism (4).
4. The method for testing the air volume change value of the traction fan according to claim 3, characterized in that: the position of the air volume body (2) is adjusted and controlled through the interaction of all parts in the air volume regulator, so that the effect of changing the air volume of the air outlet is achieved, and the test purpose of adjustable measured air volume is realized.
5. The method for testing the air volume change value of the traction fan according to claim 4, characterized in that: the test control method of the test scheme comprises the following steps: when a traction fan test is carried out, the hand wheel (6) is rotated to drive the rotating mechanism (4) to move back and forth, so that the air volume control body (2) is driven to move back and forth, when the air volume control body (2) moves backwards, the distance from the pipeline port is far, the air volume of the air outlet is large, otherwise, when the air volume control body (2) moves forwards, the distance from the pipeline port is near, the air volume of the air outlet is small, the control function of the test air volume change value is realized, and the test target with accurate detection data is reached.
6. The method for testing the air volume change value of the traction fan according to claim 5, characterized in that: in order to ensure the stability of airflow state during operation test, the working state of a traction fan under different working conditions is simulated, more accurate test data is measured, the front end of the air volume control body (2) is designed into a conical structure, and in addition, for ensuring that the installation between the air volume regulator and the pipeline interface (1) is firm and reliable, the locking nut (5) is subjected to torque fastening, and the stability of a detection control system is ensured.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111317116.4A CN113819086A (en) | 2021-11-09 | 2021-11-09 | Method for testing air volume change value of traction fan |
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| Application Number | Priority Date | Filing Date | Title |
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| CN202111317116.4A CN113819086A (en) | 2021-11-09 | 2021-11-09 | Method for testing air volume change value of traction fan |
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| CN113819086A true CN113819086A (en) | 2021-12-21 |
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| CN202111317116.4A Pending CN113819086A (en) | 2021-11-09 | 2021-11-09 | Method for testing air volume change value of traction fan |
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Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB9718349D0 (en) * | 1997-08-30 | 1997-11-05 | Production Pipeline Technics L | Pipe testing apparatus |
| JPH1026391A (en) * | 1996-07-10 | 1998-01-27 | Fujitsu General Ltd | Method for controlling air conditioner |
| CN202991566U (en) * | 2012-12-28 | 2013-06-12 | 四川诚邦测控技术有限公司 | Full-automatic fan test system |
| CN206563411U (en) * | 2017-03-09 | 2017-10-17 | 大连理工大学 | Air quantity is monitored and the integrated air quantity variable end device of regulation |
| CN109098995A (en) * | 2017-06-21 | 2018-12-28 | 中车青岛四方机车车辆股份有限公司 | A kind of traction electric machine cooling system air duct and draught fan performance test method and device |
| CN111197593A (en) * | 2018-11-19 | 2020-05-26 | 宝山钢铁股份有限公司 | Air separation unit air compressor surge-proof blow-down valve control method |
| 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 |
| CN113565784A (en) * | 2021-07-22 | 2021-10-29 | 中国北方车辆研究所 | Flow regulating device for testing pneumatic performance of fan |
-
2021
- 2021-11-09 CN CN202111317116.4A patent/CN113819086A/en active Pending
Patent Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH1026391A (en) * | 1996-07-10 | 1998-01-27 | Fujitsu General Ltd | Method for controlling air conditioner |
| GB9718349D0 (en) * | 1997-08-30 | 1997-11-05 | Production Pipeline Technics L | Pipe testing apparatus |
| CN202991566U (en) * | 2012-12-28 | 2013-06-12 | 四川诚邦测控技术有限公司 | Full-automatic fan test system |
| CN206563411U (en) * | 2017-03-09 | 2017-10-17 | 大连理工大学 | Air quantity is monitored and the integrated air quantity variable end device of regulation |
| CN109098995A (en) * | 2017-06-21 | 2018-12-28 | 中车青岛四方机车车辆股份有限公司 | A kind of traction electric machine cooling system air duct and draught fan performance test method and device |
| CN111197593A (en) * | 2018-11-19 | 2020-05-26 | 宝山钢铁股份有限公司 | Air separation unit air compressor surge-proof blow-down valve control method |
| 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 |
| CN113565784A (en) * | 2021-07-22 | 2021-10-29 | 中国北方车辆研究所 | Flow regulating device for testing pneumatic performance of fan |
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