CN214503434U - Rail transit converter air cooling system test device - Google Patents
Rail transit converter air cooling system test device Download PDFInfo
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- CN214503434U CN214503434U CN202120695344.4U CN202120695344U CN214503434U CN 214503434 U CN214503434 U CN 214503434U CN 202120695344 U CN202120695344 U CN 202120695344U CN 214503434 U CN214503434 U CN 214503434U
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- 238000012360 testing method Methods 0.000 title claims abstract description 176
- 238000001816 cooling Methods 0.000 title claims abstract description 91
- 238000009434 installation Methods 0.000 claims description 20
- 238000005192 partition Methods 0.000 claims description 7
- 238000009423 ventilation Methods 0.000 claims description 5
- 239000012774 insulation material Substances 0.000 claims description 4
- 238000011160 research Methods 0.000 abstract description 9
- 230000009471 action Effects 0.000 abstract description 8
- 239000011324 bead Substances 0.000 abstract description 2
- 238000010998 test method Methods 0.000 description 8
- 230000017525 heat dissipation Effects 0.000 description 6
- 230000000694 effects Effects 0.000 description 5
- 230000009467 reduction Effects 0.000 description 4
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 4
- 230000008859 change Effects 0.000 description 3
- 239000011810 insulating material Substances 0.000 description 3
- 230000000903 blocking effect Effects 0.000 description 2
- 230000007547 defect Effects 0.000 description 2
- 238000010438 heat treatment Methods 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 239000003990 capacitor Substances 0.000 description 1
- 239000000498 cooling water Substances 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 230000010354 integration Effects 0.000 description 1
- 230000002452 interceptive effect Effects 0.000 description 1
- 238000012423 maintenance Methods 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 230000008569 process Effects 0.000 description 1
- 230000000630 rising effect Effects 0.000 description 1
- 238000007789 sealing Methods 0.000 description 1
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Abstract
The utility model relates to a rail transit converter forced air cooling system test device, including the proof box, the symmetry that just is close to its first end at the both sides face of proof box is equipped with total air intake, is equipped with the deep bead that has the through-hole in the proof box, just all has set firmly the radiator to the position of each total air intake in the both sides outside of proof box. A first fan is arranged in a fan mounting chamber formed between the two wind shields. An auxiliary transformer and a resonant reactor are arranged in the test box and close to the second end of the test box, and a first air outlet is formed in the bottom surface of the test box and close to the second end of the test box. The utility model discloses a device is small, simple to operate, and easy operation can be used for testing the data under the air cooling system exclusive action, the attribute of the deep research air cooling system of being more convenient for.
Description
Technical Field
The utility model relates to a rail transit vehicle's cooling technology field especially relates to a rail transit converter air-cooled system test device.
Background
The power unit converter is an important large-mass electric appliance part on the high-speed motor train unit, and all functions of the traction converter, the auxiliary converter and the cooling unit are integrated in a box body of the power unit converter. The traction converter mainly comprises a traction control unit, a power module, a contactor, a resonant capacitor and the like, the auxiliary converter mainly comprises an auxiliary transformer, a resonant reactor and the like, the cooling unit comprises a fan, a radiator, a water pump, a cooling water pipe and the like, the auxiliary transformer and the resonant reactor in the radiator and the auxiliary converter can be air-cooled by utilizing an air cooling system part in the cooling unit, and the power module and the like in the traction converter can be water-cooled by utilizing a water cooling part in the cooling unit. The existing converter air cooling system test is carried out by using a complete power unit converter, and the following defects exist:
firstly, the whole testing device is large and the testing method is complex; at present, a power unit converter gradually tends to be miniaturized, the integration level is high, the internal space is small, corresponding measuring points are difficult to arrange, and relevant test research is difficult to carry out; in addition, the test data of the existing converter air cooling system only includes the inlet air flow rate of the cooling device, so that only parameters such as air flow and the like can be calculated.
Secondly, the air cooling system and the water cooling system in the whole power unit converter can work simultaneously, and when the complete power unit converter is adopted for testing, the tested test data is data under the cooling action of the air cooling system and the water cooling system; besides the cooled devices needing air cooling, other electric devices which do not need air cooling are arranged in the dirty room, and air can flow through the electric devices slightly during testing; therefore, the finally measured data is not the data under the pure action of the air cooling system, and the quantitative data of the air cooling system under the independent air cooling action of the cooled device cannot be accurately measured. Therefore, the existing converter air cooling system test cannot deeply research the properties of the air cooling system.
Therefore, the inventor provides a rail transit converter air cooling system test device by virtue of experience and practice of related industries for many years, so as to overcome the defects in the prior art.
SUMMERY OF THE UTILITY MODEL
An object of the utility model is to provide a rail transit converter air-cooled system test device, the device is small, simple to operate, and easy operation can be used for testing the data under the air-cooled system independent action, the attribute of the deep research air-cooled system of being more convenient for.
The utility model aims at realizing the test device of the air cooling system of the rail transit converter, which comprises a test box in a cuboid shape; the test box is characterized in that main air inlets are symmetrically arranged at the positions, close to the first end, of two side surfaces of the test box, air baffles with through holes are arranged at the positions, corresponding to the main air inlets, in the test box, the air baffles and the test box are enclosed to form air guide cavities communicated with the corresponding main air inlets, and radiators are fixedly arranged at the positions, opposite to the main air inlets, of the outer parts of the two sides of the test box; a first fan is arranged in a fan installation chamber formed between the two wind shields, an air inlet of the first fan is arranged opposite to the corresponding through hole, and an air outlet of the first fan is arranged towards the second end of the test box; and an auxiliary transformer and a resonant reactor which are arranged side by side along the width direction of the test box are arranged in the test box and close to the second end of the test box, and a first air outlet is formed in the bottom surface of the test box and close to the second end of the test box.
In a preferred embodiment of the present invention, a plurality of temperature sensors are disposed on the surfaces of the auxiliary transformer and the resonant reactor.
In a preferred embodiment of the present invention, the side mounting openings are symmetrically disposed at the two sides of the test chamber and near the second end of the test chamber, and the side door cover is detachably fixed at the side mounting openings.
The present invention provides a preferred embodiment, wherein each radiator is divided into a plurality of regions on the ventilation surface facing the outside of the test chamber, and each region is provided with an air velocity sensor.
In a preferred embodiment of the present invention, a fan partition is disposed in the fan installation chamber along the width direction of the test chamber to separate the fan installation chamber into a first fan chamber and a second fan chamber which are independent of each other, the second fan chamber is disposed near the first end of the test chamber, and a second air outlet is disposed at the bottom surface of the test chamber and corresponding to the second fan chamber; two through holes are formed in each wind shield and are communicated with a first fan chamber and a second fan chamber respectively, the first fan is arranged in the first fan chamber, the second fan is arranged in the second fan chamber, the air inlet of the second fan is arranged opposite to the corresponding through hole, and the air outlet of the second fan is arranged opposite to the second air outlet.
The utility model discloses an in a preferred embodiment, be equipped with two first fans altogether in first fan room, be equipped with two second fans altogether in the second fan room.
In a preferred embodiment of the present invention, a first mounting opening is provided at a position corresponding to the fan installation chamber and on the bottom surface of the test box, and a first bottom door cover is detachably fixed at the first mounting opening.
The present invention provides a preferable embodiment, wherein the second mounting opening and the third mounting opening are respectively provided at the bottom surface of the test chamber and corresponding to the positions of the auxiliary transformer and the resonance reactor, and the second bottom door case cover and the third bottom door case cover are detachably fixed at the second mounting opening and the third mounting opening, respectively.
The utility model discloses an in a preferred embodiment, the part that just corresponds auxiliary transformer and resonance reactor at the top internal surface of proof box is equipped with the insulation material layer, and the bottom surface on insulation material layer can support and lean on the upper surface of auxiliary transformer and resonance reactor.
In a preferred embodiment of the present invention, the test chamber comprises a top frame and a bottom plate spaced from each other up and down, a top plate covering the top of the top frame, a first end plate and a second end plate respectively located at the first end and the second end of the test chamber, and two side plates located at two sides of the test chamber; the main air inlet is arranged on the corresponding side plate, and the radiator is fixedly connected with the corresponding side plate; the wind shield is a U-shaped plate body with an opening facing to the corresponding main air inlet, two ends of the U-shaped plate body are fixedly connected with the corresponding side plates, and the top and the bottom of the U-shaped plate body are fixedly connected with the top frame and the bottom plate respectively; the part of the second end plate, which is right opposite to the auxiliary transformer and the resonance reactor, is sunken from inside to outside to form an external air duct part, and the first air outlet is formed in the bottom surface of the external air duct part.
From the above, the utility model discloses the air cooling system part and relevant by the air-cooled part in the complete power unit converter are integrated in the proof box alone, need not to recycle complete power unit converter when testing the air cooling system, have effectively reduced the device volume to the air cooling system is tested; meanwhile, other parts or function (such as noise reduction, vibration reduction and the like) designs irrelevant to the air cooling system are reduced in the whole test device, on one hand, the air can be prevented from flowing through irrelevant parts during the test, the quantitative data of the air cooling system under the independent air cooling action on the cooled device can be conveniently tested, and the deep research on the attribute of the air cooling system is facilitated; on the other hand, the test space in the test device can be obviously increased, the installation of related sensors and acquisition equipment is more convenient for the cooling capacity test of an air cooling system, the air volume test of a radiator or other tests, and the operation of data acquisition on a test site is more convenient.
Drawings
The drawings are only intended to illustrate and explain the present invention and do not limit the scope of the invention. Wherein:
FIG. 1: do the utility model provides a stereogram when rail transit converter air cooling system test device does not install top frame and roof.
FIG. 2: is a top view of fig. 1.
FIG. 3: do the utility model provides a stereogram of proof box.
FIG. 4: do the utility model provides a stereogram when top frame and roof are not installed to the proof box.
FIG. 5: which is a partial enlargement at a in fig. 4.
The reference numbers illustrate:
1. a test chamber;
11. a top frame; 111. a top plate;
12. a base plate; 121. a first bottom door and a first box cover; 122. a second bottom door case cover; 123. a third bottom door case cover;
13. a first end plate;
14. a second end plate; 141. an external air duct part;
15. a side plate; 151. a main air inlet; 152. a side door case cover;
16. a wind deflector; 161. a through hole;
17. a wind guide cavity;
18. a fan installation chamber; 181. a fan baffle plate; 182. a first fan chamber; 183. a second fan chamber;
2. a heat sink;
3. a first fan;
4. a second fan;
5. an auxiliary transformer;
6. a resonant reactor.
Detailed Description
In order to clearly understand the technical features, objects, and effects of the present invention, embodiments of the present invention will be described with reference to the accompanying drawings.
As shown in fig. 1 to 5, the present embodiment provides a rail transit converter air cooling system test apparatus, which includes a test box 1 in a rectangular shape, total air inlets 151 are symmetrically disposed at two side surfaces of the test box 1 and near a first end of the test box, air deflectors 16 having through holes 161 are disposed in positions corresponding to the total air inlets 151 in the test box 1, the air deflectors 16 and the test box 1 enclose an air guide cavity 17 communicating with the corresponding total air inlets 151, and radiators 2 are fixedly disposed at positions facing the total air inlets 151 outside two sides of the test box 1. Be equipped with first fan 3 in the fan installation room 18 that forms between two deep beads 16, the air intake of first fan 3 is just to setting up with the through-hole 161 that corresponds, and the air outlet of first fan 3 sets up towards the second end of proof box 1. An auxiliary transformer 5 and a resonant reactor 6 which are arranged side by side along the width direction of the test box 1 are arranged in the test box 1 and close to the second end of the test box, and a first air outlet is formed in the bottom surface of the test box 1 and close to the second end of the test box.
The whole air cooling system test device adopts an air cooling mode of forced air circulation, when the test is carried out, natural air is sucked into the radiator 2 from the main air inlets 151 on two sides of the test box 1, flows through the radiator 2 and then enters the corresponding air guide cavity 17, is sucked into the first fan 3 through the corresponding through hole 161, blows to the auxiliary transformer 5 and the resonant reactor 6 to cool the auxiliary transformer and the resonant reactor, and is discharged from the first air outlet. If the cooling capacity test (namely a dirty room temperature rise test), the radiator air volume test or other tests of the air cooling system need to be carried out, corresponding sensors and acquisition equipment can be additionally arranged, and the air cooling system can be independently tested in a relevant mode.
Therefore, the test device in the embodiment integrates the air cooling system part in the complete power unit converter and the related air cooled parts in the test box 1 independently, so that the complete power unit converter is not required to be reused when the air cooling system is tested, and the volume of the device for testing the air cooling system is effectively reduced; meanwhile, other parts or function (such as noise reduction, vibration reduction and the like) designs irrelevant to the air cooling system are reduced in the whole test device, on one hand, the air can be prevented from flowing through irrelevant parts during the test, the quantitative data of the air cooling system under the independent air cooling action on the cooled device can be conveniently tested, and the deep research on the attribute of the air cooling system is facilitated; on the other hand, the test space in the test device can be obviously increased, the installation of related sensors and acquisition equipment is more convenient for the cooling capacity test of an air cooling system, the air volume test of a radiator or other tests, and the operation of data acquisition on a test site is more convenient.
In a specific implementation manner, in order to facilitate the air cooling system cooling capacity test by using the test apparatus, a plurality of temperature sensors are respectively arranged on the surfaces of the auxiliary transformer 5 and the resonant reactor 6 (prior art).
Generally, side mounting openings are symmetrically formed in the positions, close to the second end, of the two side surfaces of the test box 1, and side box covers 152 are detachably fixed to the side mounting openings, so that an operator can conveniently arrange temperature sensors on the surfaces of the auxiliary transformer 5 and the resonant reactor 6 through the side box covers 152.
In order to facilitate the radiator air volume test by using the test device, the ventilation surface of each radiator 2 facing the outside of the test chamber 1 (i.e. the air inlet surface of the radiator 2) is divided into a plurality of areas, and each area is provided with an air velocity sensor (which can also be called as an anemoscope, and the specific structure is the prior art).
In one embodiment, as shown in fig. 1 and 4, a fan partition 181 is disposed in the fan installation chamber 18 along the width direction of the test chamber 1 to divide the fan installation chamber 18 into a first fan chamber 182 and a second fan chamber 183 which are independent of each other, the second fan chamber 183 is disposed near a first end of the test chamber 1, and a second air outlet is disposed at a position corresponding to the second fan chamber 183 on the bottom surface of the test chamber 1. Two through holes 161 are formed in each wind shield 16 and are respectively communicated with the first fan chamber 182 and the second fan chamber 183, the first fan 3 is arranged in the first fan chamber 182, the second fan 4 is arranged in the second fan chamber 183, an air inlet of the second fan 4 is arranged opposite to the corresponding through hole 161, and an air outlet of the second fan 4 is arranged opposite to the second air outlet. Generally, two first fans 3 are provided in the first fan housing 182, and two second fans 4 are provided in the second fan housing 183.
In an actual power unit converter, generally, in order to ensure a heat dissipation effect, a fan partition plate 181 is used to divide two fan chambers and two sets of fans are arranged, so that when the actual power unit converter works, natural wind is sucked from the main air inlets 151 on two sides, flows through the radiator 2 and is sucked into the first fan 3 in the first fan chamber 182 and the second fan 4 in the second fan chamber 183 respectively, and the wind sucked into the first fan chamber 182 is blown to the auxiliary transformer 5 and the resonant reactor 6 through the first fan 3, cools the auxiliary transformer and the resonant reactor, and is discharged through the first air outlet; the air sucked into the second fan chamber 183 is directly discharged from the second outlet by the second fan 4. The heat dissipation channel formed by the first fan chamber 182 and the first air outlet mainly plays a role in heat dissipation of the radiator 2, the auxiliary transformer 5 and the resonant reactor 6, the heat dissipation channel formed by the second fan chamber 183 and the second air outlet mainly plays a role in heat dissipation of the radiator 2, and the first fan chamber and the second air outlet are matched with each other, so that the heat dissipation effect is greatly improved.
Therefore, in this embodiment, the fan partition 181 is also used to separate two fan chambers, so as to better simulate the air cooling condition in the actual power unit converter. It should be noted that the testing apparatus in this embodiment mainly tests the properties of the air cooling system, so that the heat sink 2 is not operated during the test, and only plays a role of blocking the wind resistance of the air entering at the main air inlet 151, so as to better simulate the real situation.
Of course, the number and arrangement of the specific fans can be determined according to the arrangement mode of the fans in the actual power unit converter, so that the performance of the air cooling system in the on-site power unit converter can be better simulated.
Further, in order to facilitate installation, maintenance or replacement of the fans, the auxiliary transformer 5 and the resonance reactor 6, as shown in fig. 2, a first installation opening is formed in the bottom surface of the test chamber 1 at a position corresponding to the fan installation chamber 18, and a first bottom door case cover 121 is detachably fixed to the first installation opening. A second mounting opening and a third mounting opening are respectively formed in the bottom surface of the test box 1 and at positions corresponding to the auxiliary transformer 5 and the resonance reactor 6, and a second bottom door box cover 122 and a third bottom door box cover 123 are detachably fixed at the second mounting opening and the third mounting opening, respectively.
The number of the first mounting ports may be determined according to the number of the fans, for example, in the present embodiment, two first mounting ports are provided, one of the first mounting ports is provided corresponding to two fans close to one of the radiators 2, and the other first mounting port is provided corresponding to two fans close to the other radiator 2.
Preferably, a heat insulating material layer (for example, various rubber and plastic heat insulating material layers can be adopted, and the prior art is adopted) is arranged on the inner surface of the top of the test box 1 and the parts corresponding to the auxiliary transformer 5 and the resonance reactor 6, and the bottom surface of the heat insulating material layer can abut against the upper surfaces of the auxiliary transformer 5 and the resonance reactor 6. The sealing performance between the top of the test box 1 and the upper surfaces of the auxiliary transformer 5 and the resonant reactor 6 is guaranteed, airflow is prevented from flowing away from the top, the air cooling effect and the test accuracy are prevented from being affected, and more air is guaranteed to flow to a cooled device.
Further, for convenience of manufacture and installation, as shown in fig. 3 and 4, the test chamber 1 includes a top frame 11 and a bottom plate 12 spaced up and down, a top plate 111 covering the top of the top frame 11, a first end plate 13 and a second end plate 14 respectively located at a first end and a second end of the test chamber 1, and two side plates 15 located at both sides of the test chamber 1. The main air inlet 151 is arranged on the corresponding side plate 15, and the radiator 2 is fixedly connected with the corresponding side plate 15. The wind shield 16 is a U-shaped plate with an opening facing the corresponding main air inlet 151, two ends of the U-shaped plate are fixedly connected with the corresponding side plates 15, and the top and the bottom of the U-shaped plate are fixedly connected with the top frame 11 and the bottom plate 12 respectively. The part of the second end plate 14 facing the auxiliary transformer 5 and the resonance reactor 6 is recessed from inside to outside to form an external air duct portion 141, and the first air outlet is opened on the bottom surface of the external air duct portion 141.
The whole test box 1 is a welded box body, the tops and bottoms of the first end plate 13, the second end plate 14, the side plates 15 and the wind shields 16 are respectively welded on the top frame 11 and the bottom plate 12, two ends of the wind shields 16 are welded on the corresponding side plates 15, and the fans can be connected with the corresponding wind shields 16. The blower partition 181 is welded at the top and bottom thereof to the top frame 11 and the bottom plate 12, respectively, and welded at both ends thereof to the two wind blocking plates 16 to separate the first blower compartment 182 and the second blower compartment 183 by the blower partition 181, thereby preventing the wind sucked by the first blower 3 in the first blower compartment 182 and the wind sucked by the second blower 4 in the second blower compartment 183 from interfering with each other. The side mounting openings are formed in the corresponding side plates 15, and the first mounting opening, the second mounting opening and the third mounting opening are formed in the bottom plate 12. The external air duct portion 141 may be formed by opening a mounting opening on the second end plate 14 and fixedly connecting an external plate.
Further, the embodiment also provides a rail transit converter air cooling system test method, which is used for performing a test by using the rail transit converter air cooling system test device, and the test method is mainly used for performing an air cooling system cold area capability test (namely a dirty room temperature rise test), and the rail transit converter air cooling system test method comprises the following steps:
s1, assembling the test box 1, the wind shield 16, the radiator 2, the first fan 3, the auxiliary transformer 5 and the resonant reactor 6, and correspondingly arranging a plurality of temperature sensors on the surfaces of the auxiliary transformer 5 and the resonant reactor 6 according to the number and position requirements of required temperature measuring points after the assembly is finished.
After step S1 is completed, the power supply cables of the fan, the auxiliary transformer 5 and the resonant reactor 6 are led out of the test box 1, and the connection wires of the temperature sensors are led out of the test box 1 and connected with a data acquisition device (prior art) to facilitate the acquisition of the detected temperature data.
And S2, after the first fan 3 is started, supplying power to the auxiliary transformer 5 and the resonant reactor 6, and setting the heating power of the auxiliary transformer 5 and the resonant reactor 6 as the rated heating power.
In step S2, if the second fan 4 is further provided, the second fan 4 needs to be turned on at the same time. The radiator 2 does not work, and only plays a role in simulating the wind resistance of an actual mounting structure, so that the attribute of the air cooling system under the independent action can be better tested.
And S3, after the temperature values measured by the temperature sensors are stable, recording the temperature change curve of the temperature at each temperature measuring point along with the time, recording the temperature stable value at each temperature measuring point, and then calculating the difference value between each temperature stable value and the ambient temperature to obtain the surface temperature rise at each temperature measuring point.
S4, adjusting the fan rotating speed of the first fan 3, repeating the step S3, and then comparing the temperature change curves of the temperature measuring points with time under different fan rotating speeds and the temperature rise of each surface to judge the cooling capacity of the air cooling system under different fan rotating speeds.
Wherein, the smaller the surface temperature rise, the stronger the cooling capacity; the temperature rising speed can be seen according to the temperature change curve along with the time, the cooling capacity of the air-cooling system under different fan rotating speeds can be compared, the operation is simple and convenient, the test device is adopted for testing in the whole test process, other parts irrelevant to air cooling are not arranged in the test box 1, quantitative data of the air-cooling system under the independent air cooling effect on a cooled device can be tested more accurately, and the deep research on the property of the air-cooling system is facilitated. And the test space in the whole test box 1 is larger, so that the temperature sensors can be more conveniently installed.
Further, the embodiment also provides a rail transit converter air cooling system test method, which is used for testing by using the rail transit converter air cooling system test device, and is mainly used for testing the air volume of a radiator, and the rail transit converter air cooling system test method comprises the following steps:
s1, assembling the test box 1, the wind shield 16, the radiator 2, the first fan 3, the auxiliary transformer 5 and the resonant reactor 6, dividing each radiator 2 into a plurality of areas on the ventilation surface facing the outside of the test box 1 after the assembly is finished, and arranging an air speed sensor on each area.
And S2, starting the first fan 3.
In step S2, only the first fan 3 may be turned on, and if the second fan 4 is further provided, the second fan 4 needs to be turned on at the same time. The radiator 2 does not work, and only plays a role in simulating the wind resistance of an actual mounting structure; in addition, because the auxiliary transformer 5 and the resonance reactor 6 have little influence on the air volume of the radiator 2 when working in the air volume test of the radiator, the auxiliary transformer and the resonance reactor can be selected to be not electrified; however, the auxiliary transformer 5 and the resonant reactor 6 need to be installed in the test box 1 to simulate the wind resistance of the actual installation structure, so as to more accurately test the wind volume of each radiator 2.
And S3, detecting the wind speed of the corresponding area through each wind speed sensor, calculating the average wind speed corresponding to the radiator 2 according to the wind speed detected by each wind speed sensor corresponding to the radiator 2, and calculating the air volume of the corresponding radiator 2 according to the average wind speed and the ventilation surface area of the radiator 2. It is understood that since one of the two radiators 2 is closer to the auxiliary transformer 5 and the other is closer to the resonance reactor 6, the air volumes of the two radiators 2 are generally different.
Of course, the test method that can be realized by using the test device is not limited to the above-mentioned cooling capacity test (the test is for the whole air cooling system, the most complex and perfect test item) of the air cooling system and the air volume test of the radiator, and the test device can be used for carrying out other test items of the air cooling system according to actual needs, so as to better understand the attributes of the air cooling system. In addition, the radiator 2, the auxiliary transformer 5, the resonance reactor 6 and each fan can be selected according to the specific requirements of the air cooling system test, so that different test requirements can be met.
In summary, the test device and the test method for the air cooling system of the rail transit converter in the embodiment are designed for solving the problem that the air cooling system of the rail transit converter in the prior art has no special test device and test method, and can complete the independent research test of the air cooling system of the converter. The whole test device reduces the parts and functional designs irrelevant to the air cooling system, obviously increases the test space of the air cooling system, has small volume, convenient installation, good stability, good firmness and higher reliability of test data, is more convenient for installing parts such as a sensor and the like, can be easily and quickly installed and replaced, and is convenient for the comparison research of multiple parts; the method for testing the cooling capacity of the air cooling system and the air quantity of the radiator is simple to operate and high in data accuracy.
The above are merely exemplary embodiments of the present invention, and are not intended to limit the scope of the present invention. Any person skilled in the art should also realize that such equivalent changes and modifications can be made without departing from the spirit and principles of the present invention.
Claims (10)
1. A rail transit converter air cooling system test device is characterized by comprising a test box in a rectangular shape;
main air inlets are symmetrically arranged at the positions, close to the first end, of the two side faces of the test box, air baffles with through holes are arranged at the positions, corresponding to the main air inlets, in the test box, the air baffles and the test box are enclosed to form air guide cavities communicated with the corresponding main air inlets, and radiators are fixedly arranged at the positions, opposite to the main air inlets, of the outer portions of the two sides of the test box;
a first fan is arranged in a fan installation chamber formed between the two wind shields, an air inlet of the first fan is arranged opposite to the corresponding through hole, and an air outlet of the first fan is arranged towards the second end of the test box; and an auxiliary transformer and a resonant reactor which are arranged side by side along the width direction of the test box are arranged in the test box and close to the second end of the test box, and a first air outlet is formed in the bottom surface of the test box and close to the second end of the test box.
2. The rail transit converter air-cooled system test device of claim 1,
and a plurality of temperature sensors are arranged on the surfaces of the auxiliary transformer and the resonance reactor.
3. The rail transit inverter air-cooled system test device of claim 2,
and side mounting openings are symmetrically formed in the positions, close to the second end, of the two side faces of the test box, and side door box covers are detachably fixed at the side mounting openings.
4. The rail transit converter air-cooled system test device of claim 1,
and the ventilation surface of each radiator facing the outside of the test box is divided into a plurality of areas, and each area is provided with an air speed sensor.
5. The rail transit converter air-cooled system test device of claim 1,
a fan partition plate is arranged in the fan installation chamber along the width direction of the test box to divide the fan installation chamber into a first fan chamber and a second fan chamber which are mutually independent, the second fan chamber is arranged close to the first end of the test box, and a second air outlet is formed in the bottom surface of the test box and in a position corresponding to the second fan chamber; the wind shields are all provided with two through holes and are respectively communicated with the first fan chamber and the second fan chamber, the first fan is arranged in the first fan chamber, the second fan is arranged in the second fan chamber, the air inlet of the second fan is arranged opposite to the corresponding through hole, and the air outlet of the second fan is arranged opposite to the second air outlet.
6. The rail transit inverter air-cooled system test device of claim 5,
the first fan chamber is internally provided with two first fans, and the second fan chamber is internally provided with two second fans.
7. The rail transit converter air-cooled system test device of claim 1,
a first mounting opening is formed in the bottom surface of the test box and corresponds to the fan mounting chamber, and a first bottom door box cover is detachably fixed at the first mounting opening.
8. The rail transit converter air-cooled system test device of claim 1,
and a second mounting opening and a third mounting opening are respectively formed in the bottom surface of the test box and correspond to the auxiliary transformer and the resonance reactor, and a second bottom door box cover and a third bottom door box cover are detachably fixed at the second mounting opening and the third mounting opening respectively.
9. The rail transit converter air-cooled system test device of claim 1,
and a heat insulation material layer is arranged on the inner surface of the top of the test box and the part corresponding to the auxiliary transformer and the resonance reactor, and the bottom surface of the heat insulation material layer can abut against the upper surfaces of the auxiliary transformer and the resonance reactor.
10. The rail transit converter air-cooled system test device of claim 1,
the test box comprises a top frame and a bottom plate which are arranged at intervals up and down, a top plate covering the top of the top frame, a first end plate and a second end plate which are respectively positioned at the first end and the second end of the test box, and two side plates positioned at two sides of the test box; the main air inlets are formed in the corresponding side plates, and the radiators are fixedly connected with the corresponding side plates;
the wind shield is a U-shaped plate body with an opening facing the corresponding main air inlet, two ends of the U-shaped plate body are fixedly connected with the corresponding side plates, and the top and the bottom of the U-shaped plate body are fixedly connected with the top frame and the bottom plate respectively; the part of the second end plate, which is right opposite to the auxiliary transformer and the resonance reactor, is sunken from inside to outside to form an external air duct part, and the first air outlet is formed in the bottom surface of the external air duct part.
Priority Applications (1)
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN113109387A (en) * | 2021-04-06 | 2021-07-13 | 中国铁道科学研究院集团有限公司 | Rail transit converter air cooling system test device and test method |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113109387A (en) * | 2021-04-06 | 2021-07-13 | 中国铁道科学研究院集团有限公司 | Rail transit converter air cooling system test device and test method |
| CN113109387B (en) * | 2021-04-06 | 2024-05-14 | 中国铁道科学研究院集团有限公司 | Rail transit converter air cooling system test device and test method |
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