CN203376225U - Heat cycle test equipment - Google Patents
Heat cycle test equipment Download PDFInfo
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- CN203376225U CN203376225U CN201320384749.1U CN201320384749U CN203376225U CN 203376225 U CN203376225 U CN 203376225U CN 201320384749 U CN201320384749 U CN 201320384749U CN 203376225 U CN203376225 U CN 203376225U
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Abstract
The utility model discloses heat cycle test equipment which comprises a high temperature tank, a low temperature tank and a circulating pipeline system, wherein the circulating pipeline system comprises a high temperature medium pipeline connected with the high temperature tank, a low temperature medium pipeline connected with the low temperature tank and a return pipeline for medium return; the high temperature medium pipeline is provided with a high temperature pump, a high temperature connecting pipe is arranged between an outlet of the high temperature pump and a medium inlet of a test piece, and a high temperature heat exchange pipe is arranged between the high temperature pump and the high temperature tank. The low temperature medium pipeline is provided with a low temperature pump, a low temperature connecting pipe is arranged between an outlet of the low temperature pump and the medium inlet of the test piece, and a low temperature heat exchange pipe is arranged between the low temperature pump and the low temperature tank. The return pipeline comprises a high temperature return pipeline and a low temperature return pipeline which are arranged in parallel and are connected with a medium outlet of the test piece; the high temperature return pipeline is connected with the high temperature tank, and the low temperature return pipeline is connected with the low temperature tank. The heat cycle test equipment disclosed by the utility model can realize huge change of temperature and simulate thermal shock working condition of a radiator in alpine regions.
Description
Technical field
The utility model belongs to thermal shock/thermal cycling test technical field, is specifically related to a kind of thermal cycling test equipment for the cyclic test of car radiator internal heat.
Background technology
As shown in Figure 1, be the structural representation of existing a kind of thermal cycling test equipment.This thermal cycling test equipment comprises high temperature groove 1, cryostat, 2, and be arranged on the circulating line between high temperature groove 1, cryostat, 2 and test specimen 3, the interior high and low temperature medium that is contained with respectively of high temperature groove 1 and cryostat, 2, and high-temperature medium and cryogenic media all are injected in test specimen 3 by a pump 4, be respectively equipped with the variable valve 5 for adjust flux on high-temperature medium pipe and cryogenic media pipe, the high-temperature medium after test specimen 3 and cryogenic media are back in high temperature groove 1 and cryostat, 2 through the return line of two parallel connections respectively.
Although this thermal cycling test equipment can meet the requirement of the thermal cycling test of some test specimens 3 to a certain extent, also there is following some deficiency:
1, all with same pump 4, provide circulation power due to high-temperature medium and cryogenic media, and medium through in pump can and pump 4 between heat interchange occurs, cause the medium temperature of injecting test specimen 3 to rise and all relatively mitigations of decline, the temperature difference is less, can't do violent thermal strain impulse test to product, as shown in Figure 2;
2, this thermal cycling test equipment can't complete thermal cycle, the thermal shock test that reaches lower temperature below 0 ℃;
Because including, car radiator fastens all widely different parts of hydroecium, O-ring seal, fin, flat tube and side plate equal thickness and accumulation of heat and thermal strain, at extremely frigid zones, engine is in worst hot case, if throw open hot water valve, can cause unbalanced thermal strain to impact to heating radiator, often cause heating radiator side plate, fin to impact under operating mode and tear in thermal strain, and the hydroecium generation irrecoverability that causes fastening splits, flat tube and main leaf generation irrecoverability are torn, and finally cause product leakage and scrap.
Therefore, when heatsink mass detects, need the operating condition of simulation extremely frigid zones, it is carried out to thermal cycle/thermal shock test, and existing thermal cycling test equipment is slower due to difference variation, and can't meets request for utilization.
Summary of the invention
In view of this, the purpose of this utility model is to provide a kind of thermal cycling test equipment, and this thermal cycling test equipment can be realized the cataclysm of temperature, and can analog radiator in the thermal shock operating mode of extremely frigid zones.
For achieving the above object, thermal cycling test equipment of the present utility model, comprise high temperature groove, cryostat, and circulating pipe system, described circulating pipe system comprises the high-temperature medium pipeline be connected with the high temperature groove, the cryogenic media pipeline be connected with cryostat, and for the return line of medium back flow;
Described high-temperature medium pipeline is provided with high-temperature pump, is provided with the high temperature conjunction pipe between the medium inlet of described high temperature delivery side of pump and described test specimen, and and described high temperature groove between be provided with high-temperature heat exchange tube;
Described cryogenic media pipeline is provided with cryopump, is provided with the low temperature connecting pipe between the medium inlet of described low temperature delivery side of pump and described test specimen, and and described cryostat, between be provided with the low-temperature heat exchange pipe;
Described return line comprises two high temperature reflux pipelines that are set up in parallel and all are connected with the media outlet of test specimen and low temperature reflux pipeline, and described high temperature reflux pipeline is connected with described high temperature groove, and described low temperature reflux pipeline is connected with cryostat.
Further, also be provided with high-temperature three-way valve on the export pipeline of described high-temperature pump, described high temperature conjunction pipe is connected with two outlets of described high-temperature three-way valve respectively with high-temperature heat exchange tube.
Further, also be provided with the low temperature T-valve on the export pipeline of described cryopump, described low temperature connecting pipe is connected with two outlets of described low temperature T-valve respectively with the low-temperature heat exchange pipe.
Further, be provided with high temperature flow control bypass between described high-temperature pump and high-temperature three-way valve, described high temperature flow control bypass is provided with high temperature flow regulation valve and is connected with described high temperature groove.
Further, be provided with low temperature flow control bypass between described cryopump and low temperature T-valve, described low temperature flow control bypass is provided with the cryogenic flow adjustable valve and is connected with described cryostat.
Further, also be provided with flow back three-way valve on described return line, the entrance of described flow back three-way valve is connected with the media outlet of test specimen, and described high temperature reflux pipeline is connected with two outlets of described flow back three-way valve respectively with the low temperature reflux pipeline.
Further, between described high temperature groove and cryostat,, be provided with the liquid level equilibrium pipe, and described liquid level equilibrium pipe is provided with operation valve.
The beneficial effects of the utility model are:
Thermal cycling test equipment of the present utility model, by the high-temperature medium pipeline is set, and the high temperature delivery side of pump is connected with test specimen by the high temperature conjunction pipe respectively and is connected with the high temperature groove by high-temperature heat exchange tube, before carrying out thermal cycling test, the circulation line that utilizes high temperature groove, high-temperature pump and high-temperature heat exchange tube to form, make the abundant heat exchange of medium in high-temperature pump and high-temperature medium pipeline, and reach thermal equilibrium; In like manner, by the cryogenic media pipeline is set, and the low temperature delivery side of pump is connected with test specimen and is connected with cryostat, by the low-temperature heat exchange pipe by the low temperature connecting pipe respectively, before carrying out thermal cycling test, the circulation line that utilizes cryostat,, cryopump and low-temperature heat exchange pipe to form, make the medium sufficient heat exchange in cryopump and cryogenic media pipeline, and reach thermal equilibrium; And in whole thermal cycling test, the opening that all keeps high-temperature pump and cryopump, so, just can make high-temperature pump and cryopump as far as possible little on the temperature impact of medium, the temperature that passes into the medium of test specimen can realize cataclysm, can carry out the thermal shock test of temperature transient change, can simulate the thermal shock operating mode that car radiator is subject at extremely frigid zones, meet the thermal cycling test requirement of car radiator.
The accompanying drawing explanation
In order to make the purpose of this utility model, technical scheme and beneficial effect clearer, the utility model provides following accompanying drawing to describe:
The structural representation that Fig. 1 is existing a kind of thermal cycling test equipment;
Fig. 2 is for adopting after this thermal cycling test equipment the medium temperature periodogram over time that passes into test specimen;
The structural representation that Fig. 3 is the utility model thermal cycling test apparatus embodiments;
Fig. 4 is for adopting after the present embodiment thermal cycling test equipment the medium temperature periodogram over time that passes into test specimen.
Embodiment
Below in conjunction with accompanying drawing, preferred embodiment of the present utility model is described in detail.
As shown in Figure 3, be the structural representation of the utility model thermal cycling test apparatus embodiments.The thermal cycling test equipment of the present embodiment, comprise high temperature groove 1, cryostat, 2 and circulating pipe system, circulating pipe system comprises the high-temperature medium pipeline 10 be connected with high temperature groove 1, the cryogenic media pipeline 20 be connected with cryostat, 2 and for the return line 30 of medium back flow.
High-temperature medium pipeline 10 is provided with high-temperature pump 11, be provided with high temperature conjunction pipe 12 between the medium inlet of the outlet of high-temperature pump 11 and test specimen 3, and and high temperature groove 1 between be provided with high-temperature heat exchange tube 13, by high-temperature pump 11, medium in high temperature groove 1 can be injected in test specimen 3, and in the thermal cycling test process, when not needing to inject high-temperature medium to test specimen 3, utilize the high-temperature heat exchange tube 13 will be through the medium back flow of high-temperature pump 11 to high temperature groove 1, for keeping the heat interchange balance between the medium in high-temperature pump 11 and high-temperature medium pipeline 10.
Further, also be provided with high-temperature three-way valve 14 on the export pipeline of high-temperature pump 11, high temperature conjunction pipe 12 is connected with two outlets of high-temperature three-way valve 14 respectively with high-temperature heat exchange tube 13, by high-temperature three-way valve 14 is set, can select to switch the switching of high temperature conjunction pipe 12 and high-temperature heat exchange tube 13, and abandoned the form of valve has been set respectively on high temperature conjunction pipe 12 and high-temperature heat exchange tube 13, high-temperature three-way valve 14 can with high-temperature medium pipeline 10 in media implementation heat interchange balance, while utilizing high-temperature three-way valve 14 switching high temperature conjunction pipes 12 and high-temperature heat exchange tube 13, temperature impact on high-temperature medium is less.
In like manner, also be provided with low temperature T-valve 24 on the export pipeline of cryopump 21, low temperature connecting pipe 22 is connected with two outlets of low temperature T-valve 24 respectively with low-temperature heat exchange pipe 23, by low temperature T-valve 24 is set, can select to switch the switching of low temperature connecting pipe 22 and low-temperature heat exchange pipe 23, and abandoned the form of valve has been set respectively on low temperature connecting pipe 22 and low-temperature heat exchange pipe 23, low temperature T-valve 24 can with cryogenic media pipeline 20 in media implementation heat interchange balance, while utilizing low temperature T-valve 24 switching low temperature connecting pipes 22 and low-temperature heat exchange pipe 23, temperature impact on cryogenic media is less.
Further, be provided with high temperature flow control bypass 15 between high-temperature pump 11 and high-temperature three-way valve 14, high temperature flow control bypass 15 is provided with high temperature flow regulation valve 16 and is connected with high temperature groove 1, by high temperature flow control bypass 15 is set, can make high-temperature pump 11 remain at work in good condition range, when the rate-of flow that passes into test specimen 3 is larger, reduce the rate-of flow of high temperature flow control bypass 15, when the rate-of flow that passes into test specimen 3 hour, increase the rate-of flow of high temperature flow control bypass 15, and final the realization stablized by the rate-of flow of high-temperature pump 11.
In like manner, be provided with low temperature flow control bypass 25 between cryopump 21 and low temperature T-valve 24, low temperature flow control bypass 25 is provided with cryogenic flow adjustable valve 26 and is connected with cryostat, 2, by low temperature flow control bypass 25 is set, can make cryopump 21 remain at work in good condition range, when the rate-of flow that passes into test specimen 3 is larger, reduce the rate-of flow of low temperature flow control bypass 25, when the rate-of flow that passes into test specimen 3 hour, increase the rate-of flow of low temperature flow control bypass 25, and final the realization stablized by the rate-of flow of cryopump 21.
Further, also be provided with flow back three-way valve 33 on the return line 30 of the present embodiment, the entrance of flow back three-way valve 33 is connected with the media outlet of test specimen 3, high temperature reflux pipeline 31 is connected with two outlets of flow back three-way valve 33 respectively with low temperature reflux pipeline 32, can select to switch the switching of high temperature reflux pipeline 31 and low temperature reflux pipeline 32 by flow back three-way valve 33, and then control medium is back to high temperature groove 1 or cryostat, 2, and make the liquid level position in high temperature groove 1 and cryostat, 2 constant.Preferably, be provided with liquid level equilibrium pipe 6 between high temperature groove 1 and cryostat, 2, and liquid level equilibrium pipe 6 is provided with operation valve 7, by liquid level equilibrium pipe 6 is set, can make the liquid level in high temperature groove 1 and cryostat, 2 equate, be the thermal cycling test equipment of the present embodiment after long-play, still can keep the liquid level in high temperature grooves 1 and cryostat, 2 to equate by liquid level equilibrium pipe 6.
The thermal cycling test equipment of the present embodiment, by high-temperature medium pipeline 10 is set, and the outlet of high-temperature pump 11 is connected with test specimen 3 by high temperature conjunction pipe 12 respectively and is connected with high temperature groove 1 by high-temperature heat exchange tube 13, before carrying out thermal cycling test, the circulation line that utilizes high temperature groove 1, high-temperature pump 11 and high-temperature heat exchange tube 13 to form, make the interior abundant heat exchange of medium of high-temperature pump 11 and high-temperature medium pipeline 10, and reach thermal equilibrium; In like manner, by cryogenic media pipeline 20 is set, and the outlet of cryopump 21 is connected with test specimen 3 and is connected with cryostat, 2 by low-temperature heat exchange pipe 23 by low temperature connecting pipe 22 respectively, before carrying out thermal cycling test, the circulation line that utilizes cryostat, 2, cryopump 21 and low-temperature heat exchange pipe 23 to form, make the interior medium sufficient heat exchange of cryopump 21 and cryogenic media pipeline 20, and reach thermal equilibrium; And in whole thermal cycling test, the opening that all keeps high-temperature pump 11 and cryopump 21, so, just can make high-temperature pump 11 and cryopump 21 as far as possible little on the temperature impact of medium, the temperature that passes into the medium of test specimen 3 can realize cataclysm, can carry out the thermal shock test of temperature transient change, can simulate the thermal shock operating mode that car radiator is subject at extremely frigid zones, meet the thermal cycling test requirement of car radiator.
Embodiment below in conjunction with above-mentioned thermal cycling test equipment to the thermal cycling test method elaborates.
Adopt the thermal cycling test method of the present embodiment thermal cycling test equipment, comprise the steps:
1) high-temperature heat exchange tube 13 and low-temperature heat exchange pipe 23 are communicated with, and high temperature conjunction pipe 12 and low temperature connecting pipe 22 are cut off, make between high-temperature pump 11, high-temperature heat exchange tube 13 and high temperature groove 1 to form the loop be communicated with, form the loop be communicated with between cryopump 21, low-temperature heat exchange pipe 23 and cryostat, 2;
2) open high-temperature pump 11 and cryopump 21, make the interior medium sufficient heat exchange of high-temperature pump 11 and high-temperature medium pipeline 10, medium sufficient heat exchange in cryopump 21 and cryogenic media pipeline 20, be that high-temperature pump 11 and high-temperature medium pipeline 10 interior media reach the heat interchange equilibrium state, the media in cryopump 21 and cryogenic media pipeline 20 reach the heat interchange equilibrium state;
3) be communicated with low temperature connecting pipe 22, cut off low-temperature heat exchange pipe 23, cut off high temperature conjunction pipe 12 and be communicated with high-temperature heat exchange tube 13, now low temperature connecting pipe 22, test specimen 3, low temperature reflux pipeline 32 and cryostat, 2 form the loop be communicated with, form the loop be communicated with between high-temperature pump 11, high-temperature heat exchange tube 13 and high temperature groove 1, test specimen 3 and the medium heat in low temperature connecting pipe 22 are exchanged, until the time of setting, test specimen 3 is under worst cold case;
4) cut off low temperature connecting pipe 22, be communicated with low-temperature heat exchange pipe 23, be communicated with high temperature conjunction pipe 12 and cut off high-temperature heat exchange tube 13, now high temperature conjunction pipe 12, test specimen 3, high temperature reflux pipeline 31 and high temperature groove 1 form the loop be communicated with, form the loop be communicated with between cryopump 21, low-temperature heat exchange pipe 23 and cryostat, 2, test specimen 3 and the medium heat in high temperature conjunction pipe 12 are exchanged, until the time of setting, test specimen 3 is under worst hot case;
5) reciprocation cycle step 3) and step 4), until reach the cycle period quantity of setting, at each switch step 3) and the process of step 4) in, test specimen 3 all can be subject to the thermal shock of low temperature-high temperature or high temperature-low temperature, and then realization is to the thermal cycling test of test specimen 3;
6), after thermal cycling test completes, close high-temperature pump 11 and cryopump 21.
Further, high-temperature pump 11 and cryopump 21 are all worked under the rated power operating mode, make by the rate-of flow of high-temperature pump 11 and cryopump 21 and stablize, and be convenient to regulation and control.Medium in the high temperature groove 11 of the present embodiment and cryostat, 21 is ethylene glycol, temperature in cryostat, 21 can be down to-20 ℃, to meet the operating mode of analog radiator at extremely frigid zones, certainly, medium also can adopt other freezing points, boiling point fluent meterial at reasonable interval, its principle is suitable, is not repeated.
This thermal cycling test method, can carry out to test specimen 3 thermal shock and the thermal cycling test of temperature shock, to improve the severity of thermal strain, shorten the test period, especially, for the thermal cycling test of heating radiator, can reach with bench test and replace complete vehicle test, shorten the test period, accelerate the development progress of new product.
In addition, in the thermal cycling test process, also can, by measuring the thermal loss of circulating pipe system, change the medium temperature in high temperature groove 1 and cryostat, 2, to realize thermal compensation.
Finally explanation is, above preferred embodiment is only unrestricted in order to the technical solution of the utility model to be described, although the utility model is described in detail by above preferred embodiment, but those skilled in the art are to be understood that, can make various changes to it in the form and details, and not depart from the utility model claims limited range.
Claims (7)
1. a thermal cycling test equipment, comprise high temperature groove, cryostat, and circulating pipe system, it is characterized in that: described circulating pipe system comprises the high-temperature medium pipeline be connected with the high temperature groove, the cryogenic media pipeline be connected with cryostat, and for the return line of medium back flow;
Described high-temperature medium pipeline is provided with high-temperature pump, between the medium inlet of described high temperature delivery side of pump and test specimen, is provided with the high temperature conjunction pipe, and and described high temperature groove between be provided with high-temperature heat exchange tube;
Described cryogenic media pipeline is provided with cryopump, is provided with the low temperature connecting pipe between the medium inlet of described low temperature delivery side of pump and described test specimen, and and described cryostat, between be provided with the low-temperature heat exchange pipe;
Described return line comprises two high temperature reflux pipelines that are set up in parallel and all are connected with the media outlet of test specimen and low temperature reflux pipeline, and described high temperature reflux pipeline is connected with described high temperature groove, and described low temperature reflux pipeline is connected with cryostat.
2. thermal cycling test equipment according to claim 1, it is characterized in that: also be provided with high-temperature three-way valve on the export pipeline of described high-temperature pump, described high temperature conjunction pipe is connected with two outlets of described high-temperature three-way valve respectively with high-temperature heat exchange tube.
3. thermal cycling test equipment according to claim 2, it is characterized in that: also be provided with the low temperature T-valve on the export pipeline of described cryopump, described low temperature connecting pipe is connected with two outlets of described low temperature T-valve respectively with the low-temperature heat exchange pipe.
4. thermal cycling test equipment according to claim 3, it is characterized in that: be provided with high temperature flow control bypass between described high-temperature pump and high-temperature three-way valve, described high temperature flow control bypass is provided with high temperature flow regulation valve and is connected with described high temperature groove.
5. thermal cycling test equipment according to claim 4, it is characterized in that: be provided with low temperature flow control bypass between described cryopump and low temperature T-valve, described low temperature flow control bypass is provided with the cryogenic flow adjustable valve and is connected with described cryostat.
6. according to the described thermal cycling test equipment of claim 1-5 any one, it is characterized in that: also be provided with flow back three-way valve on described return line, the entrance of described flow back three-way valve is connected with the media outlet of test specimen, and described high temperature reflux pipeline is connected with two outlets of described flow back three-way valve respectively with the low temperature reflux pipeline.
7. according to the described thermal cycling test equipment of claim 1-5 any one, it is characterized in that: be provided with the liquid level equilibrium pipe between described high temperature groove and cryostat,, and described liquid level equilibrium pipe is provided with operation valve.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201320384749.1U CN203376225U (en) | 2013-06-28 | 2013-06-28 | Heat cycle test equipment |
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| CN201320384749.1U CN203376225U (en) | 2013-06-28 | 2013-06-28 | Heat cycle test equipment |
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Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103323358A (en) * | 2013-06-28 | 2013-09-25 | 南方英特空调有限公司 | Thermal cycle test equipment and test method |
| CN105910938A (en) * | 2016-06-03 | 2016-08-31 | 无锡市奥斯韦特科技有限公司 | Impact test box and impact mode thereof |
| CN105910939A (en) * | 2016-06-03 | 2016-08-31 | 无锡市奥斯韦特科技有限公司 | Liquid return control system and control way thereof |
| CN107045361A (en) * | 2016-02-05 | 2017-08-15 | 致茂电子股份有限公司 | Double-loop temperature control module and electronic element testing equipment with same |
| CN107144487A (en) * | 2017-07-04 | 2017-09-08 | 浙江银轮机械股份有限公司 | The thermal shock rig of changes in flow rate concussion can be carried out |
| CN111735730A (en) * | 2020-08-06 | 2020-10-02 | 宁波科镭汽车零部件有限公司 | Device and method for detecting cold and heat alternating resistance of automobile decoration panel |
| CN111811831A (en) * | 2020-06-30 | 2020-10-23 | 东风马勒热系统有限公司 | Intercooler thermal cycle test equipment |
| CN115493862A (en) * | 2022-08-31 | 2022-12-20 | 河北工业大学 | Winter environment simulation detection device |
-
2013
- 2013-06-28 CN CN201320384749.1U patent/CN203376225U/en not_active Expired - Fee Related
Cited By (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103323358A (en) * | 2013-06-28 | 2013-09-25 | 南方英特空调有限公司 | Thermal cycle test equipment and test method |
| CN107045361A (en) * | 2016-02-05 | 2017-08-15 | 致茂电子股份有限公司 | Double-loop temperature control module and electronic element testing equipment with same |
| CN107045361B (en) * | 2016-02-05 | 2019-03-15 | 致茂电子股份有限公司 | Electronic component testing equipment with double-loop temperature control module |
| CN105910938A (en) * | 2016-06-03 | 2016-08-31 | 无锡市奥斯韦特科技有限公司 | Impact test box and impact mode thereof |
| CN105910939A (en) * | 2016-06-03 | 2016-08-31 | 无锡市奥斯韦特科技有限公司 | Liquid return control system and control way thereof |
| CN107144487A (en) * | 2017-07-04 | 2017-09-08 | 浙江银轮机械股份有限公司 | The thermal shock rig of changes in flow rate concussion can be carried out |
| CN107144487B (en) * | 2017-07-04 | 2023-08-15 | 浙江银轮机械股份有限公司 | Thermal shock test device capable of carrying out flow change oscillation |
| CN111811831A (en) * | 2020-06-30 | 2020-10-23 | 东风马勒热系统有限公司 | Intercooler thermal cycle test equipment |
| CN111735730A (en) * | 2020-08-06 | 2020-10-02 | 宁波科镭汽车零部件有限公司 | Device and method for detecting cold and heat alternating resistance of automobile decoration panel |
| CN111735730B (en) * | 2020-08-06 | 2020-12-08 | 宁波科镭汽车零部件有限公司 | Device and method for detecting cold and heat alternating resistance of automobile decoration panel |
| CN115493862A (en) * | 2022-08-31 | 2022-12-20 | 河北工业大学 | Winter environment simulation detection device |
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Granted publication date: 20140101 Termination date: 20160628 |