A kind of novel heat radiator thermal resistance flow resistance testing apparatus
Technical field:
The utility model relates to the water-cooling system field in the power electronics, relates more specifically to a kind of novel heat radiator thermal resistance flow resistance testing apparatus.
Background technology:
Traditional heat radiator thermal resistance flow resistance testing apparatus generally is used for testing air cooling heating radiator or heat-pipe radiator, thermal resistance and flow resistance measurement to water-filled radiator seldom are applied on the thyristor heating radiator, the condition that does not possess the test of thyristor heat radiator thermal resistance: at first converter valve thyristor and heating radiator generally adopt press-fit approach, pressure assembling force is very high, 6 inches thyristor heating radiator press mounting structure pressure assembling force 187kN, traditional testing apparatus does not possess the condition of press-fiting; Secondly traditional thermal resistance and flow resistance measuring table all is at heating radiator radial outer edges collecting temperature point, and with multi-point temp mean value calculation heat radiator thermal resistance, the heat radiator thermal resistance that this method of testing obtains is littler than actual thermal resistance value, is unfavorable for the protection to thyristor.In view of traditional test platform and method defective, patent of the present invention is carried out corresponding improvement.
The utility model content:
The purpose of this utility model provides a kind of novel heat radiator thermal resistance flow resistance testing apparatus, this thermal resistance flow resistance testing apparatus can be carried out the experiment of thermal resistance and flow resistance simultaneously, adopt the heating piece to substitute the thyristor element, can obtain thyristor heat radiator thermal resistance and flow resistance curve at short notice, establish foundation for the direct-current transmission converter valve design of Cooling System provides.
For achieving the above object, the utility model is by the following technical solutions:
A kind of novel heat radiator thermal resistance flow resistance testing apparatus that the utility model provides, comprise equipment box and base, comprise on the described equipment box that the thyristor heating radiator press-fits part, water circulation system, test and collecting device, comprises power-supply device and cistern in the described equipment box; Described thyristor heating radiator press-fits part and is arranged on the equipment box, the end that described thyristor heating radiator press-fits part is connected with equipment box, the other end is connected with collecting device with described test, be connected by water circulation system between described test and collecting device and the described cistern, described thyristor heating radiator press-fits between part and described test and the collecting device and is provided with water circulation system; Described thyristor heating radiator press-fits part and comprises hydraulic mechanism, heating radiator, heating simulated block and thermal insulation material, be symmetrically connected with heating simulated block, thermal insulation material and hydraulic mechanism at described the above heating radiator of equipment box axial direction successively to two ends, the hydraulic mechanism that described heating radiator one end connects also is connected with collecting device with described test, the hydraulic mechanism that the described heating radiator other end connects also is connected with described equipment box, and described hydraulic mechanism also links to each other with hydraulic control valve by hydraulic tube.
In a kind of novel heat radiator thermal resistance flow resistance testing apparatus technical scheme that the utility model provides, described water circulation system comprises cistern, water inlet pipe, rising pipe and pipe adapter.
In another preferred a kind of novel heat radiator thermal resistance flow resistance testing apparatus technical scheme that the utility model provides, described test is connected with described cistern by water inlet pipe, rising pipe with collecting device.
In the preferred a kind of novel heat radiator thermal resistance flow resistance testing apparatus technical scheme again that the utility model provides, described test and collecting device comprise differential manometer and thermometer.
In another preferred a kind of novel heat radiator thermal resistance flow resistance testing apparatus technical scheme that the utility model provides, be provided with suspended body flowmeter between described water inlet pipe and the cistern, and connect with pipe adapter.
In another preferred a kind of novel heat radiator thermal resistance flow resistance testing apparatus technical scheme that the utility model provides, described cistern is provided with two, is communicated with by pipeline between two cistern.
In another preferred a kind of novel heat radiator thermal resistance flow resistance testing apparatus technical scheme that the utility model provides, be provided with water pump in the described cistern.
In another preferred a kind of novel heat radiator thermal resistance flow resistance testing apparatus technical scheme that the utility model provides, described thyristor heating radiator press-fits part and is installed on the described equipment box by fixed mount.
Because the beneficial effect that has adopted technique scheme, the utility model to obtain is:
1, simple in structure, compact, practical, cost is low, measures accurately with quick.
2, hydraulic mechanism provides a pressing method of thyristor heating radiator simply and easily, can be for convenience detach and regulate pressure assembling force, can satisfy the requirement of 6 inches thyristor heating radiator press mounting structure pressure assembling force 187kN.
3, two cistern water cycles are used, to reduce fluctuating temperature.Pump power is bigger, can satisfy big traffic requirement, and can obtain the flow of requirement by speed governing.
4, power-supply device mainly adopts potential device to provide big electric current to heating module, to satisfy the high-power requirement of thyristor heating radiator, by regulating the thermo-resistance measurement requirement that electric current can be easy to satisfy different power consumption.
5, data acquisition modes can be easy to capture present direct-current transmission converter valve thyristor two kinds of flow passage structure spreader surface temperature peaks commonly used.Because the collection point is few, little to the influence of heating module heat distribution homogeneity, meet more with actual operating mode.
Description of drawings
Fig. 1 is a kind of novel heat radiator thermal resistance flow resistance testing apparatus front view;
Fig. 2 is a kind of novel heat radiator thermal resistance flow resistance testing apparatus left view;
Fig. 3 is a kind of novel heat radiator thermal resistance flow resistance testing apparatus vertical view;
Fig. 4 is a spreader surface temperature acquisition point synoptic diagram of the present invention;
Wherein, the 1-equipment box, the 2-base, 3-thyristor heating radiator press-fits part, 4-test and collecting device, the 5-suspended body flowmeter, 6-water inlet pipe, 7-rising pipe, 8-pipe adapter, 9-heating radiator, the 10-simulated block that generates heat, 11-hydraulic mechanism, 12-fixed mount, 13-thermal insulation material, 14-hydraulic control valve.
Embodiment
Below in conjunction with embodiment utility model is described in further detail.
Embodiment 1:
Shown in Fig. 1-4, a kind of novel heat radiator thermal resistance flow resistance testing apparatus of this routine utility model, comprise equipment box 1 and base 2, comprise on the equipment box 1 that the thyristor heating radiator press-fits part 3, water circulation system, test and collecting device 4, comprises power-supply device and cistern in the equipment box 1; The thyristor heating radiator press-fits part 3 and is installed on the equipment box 1 by fixed mount 12, the end that the thyristor heating radiator press-fits part 3 is connected with equipment box 1, the other end is connected with collecting device 4 with test, be connected by water circulation system between test and collecting device 4 and the described cistern, the thyristor heating radiator press-fits between part 3 and test and the collecting device 4 and is provided with water circulation system; The thyristor heating radiator press-fits part 3 and comprises hydraulic mechanism 11, heating radiator 9, heating simulated block 10 and thermal insulation material 13, heating radiator 9 is symmetrically connected with heating simulated block 10, thermal insulation material 13 and hydraulic mechanism 11 successively to two ends on equipment box 1 axial direction, the hydraulic mechanism 11 that heating radiator 9 one ends connect also is connected with collecting device 4 with test, the hydraulic mechanism 11 that heating radiator 9 other ends connect also is connected with equipment box 1, hydraulic mechanism 11 is generally hydraulic jack, and hydraulic mechanism 11 also links to each other with hydraulic control valve 14 by hydraulic tube; Water circulation system comprises cistern, water inlet pipe 6, rising pipe 7 and pipe adapter 8, and test is connected with cistern by water inlet pipe 6, rising pipe 7 with collecting device; Test and collecting device 4 comprise differential manometer and thermometer, are provided with suspended body flowmeter 5 between water inlet pipe 6 and the cistern, and connect with pipe adapter 8, and cistern is provided with two, is communicated with by pipeline between two cistern, is provided with water pump in the cistern, and power is provided.
A kind of novel heat radiator thermal resistance flow resistance testing apparatus of the present utility model, can carry out the experiment of thermal resistance and flow resistance simultaneously, adopt heating simulated block 10 to substitute the thyristor element, can obtain thyristor heat radiator thermal resistance and flow resistance curve at short notice, establish foundation for the direct-current transmission converter valve design of Cooling System provides.This testing table mainly comprises: the thyristor heating radiator press-fits part 3, water circulation system, test and collecting device 4.This thermal resistance flow resistance testing apparatus is simple in structure, compact, practical, and cost is low, measures accurately with quick.
Hydraulic mechanism 11 provides a pressing method of thyristor heating radiator simply and easily, can for convenience detach and adjusting pressure assembling force.Water circulation system comprises cistern, water pump and water pipe and 8, two cistern water cycles uses of pipe adapter, and to reduce fluctuating temperature, pump power is bigger, can satisfy big traffic requirement, and can obtain the flow of requirement by speed governing.Power-supply device mainly adopts potential device big electric current to be provided for heating simulated block 10, to satisfy the high-power requirement of thyristor heating radiator, by regulating the thermo-resistance measurement requirement that electric current can be easy to satisfy different power consumption.Test and collecting device 4 mainly contain: suspended body flowmeter 5 and differential manometer, be convenient to the measurement of bypass duct pressure and flow; Heating radiator 9 turnover water temperatures adopt thermosensitive thermometer to measure, and heating radiator 9 surface temperatures adopt the thermopair reading of data.Heating radiator 9 surface temperature collection points as shown in Figure 4, the small circle among the figure is the collection point, the direction of arrow is current turnover direction.This data acquisition modes can be easy to capture present direct-current transmission converter valve thyristor two kinds of flow passage structure heating radiators, 9 surface temperature peaks commonly used.Because the collection point is arranged on the heating simulated block 10, held against heat sink 9, therefore test is the maximum temperature on heating radiator 9 surfaces.Because the collection point is few, little to the influence of heating simulated block 10 heat distribution homogeneitys, meet more with actual operating mode.By data acquisition, be easy to needed data (pressure, flow and temperature) be extracted and shown, by Computer Processing, deal with data very easily, direct output print test report simultaneously.Can pass through this Platform Implementation flow condition in addition.
Should be noted that at last: above embodiment only is not intended to limit in order to the explanation the technical solution of the utility model, although the utility model is had been described in detail with reference to the foregoing description, those of ordinary skill in the field are to be understood that: still can make amendment or be equal to replacement embodiment of the present utility model, and do not break away from any modification of the utility model spirit and scope or be equal to replacement, it all should be encompassed in the middle of this claim scope.