CN201032475Y - Engine deepness cold-hot shock test platform - Google Patents
Engine deepness cold-hot shock test platform Download PDFInfo
- Publication number
- CN201032475Y CN201032475Y CNU2006201603257U CN200620160325U CN201032475Y CN 201032475 Y CN201032475 Y CN 201032475Y CN U2006201603257 U CNU2006201603257 U CN U2006201603257U CN 200620160325 U CN200620160325 U CN 200620160325U CN 201032475 Y CN201032475 Y CN 201032475Y
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- outlet conduit
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Abstract
The utility model relates to a testing table for cold and hot punching of motor copious, comprising a cooling water circulation system and a freezing water circulation system. A water inlet pipeline of the freezing water circulation system and a water inlet pipeline of the cooling water circulation system are connected in parallel and used as the water outlet pipeline of a cooling sleeve of the motor, while a water outlet pipeline of the freezing water circulation system and a water outlet pipeline of the cooling water circulation system are connected in parallel and used as the water inlet pipeline of a cooling sleeve of the motor. The testing table of the utility model can reduce the temperature of the cooling liquid of the cooling system of the motor to 25 DEG C below zero, and the motor is startup at this temperature, thus realizing the copious cold and hot punching. The utility model integrates the freezing water circulation system and the copious cooling water circulation into a whole, and provides a cooling liquid with a temperature difference as high as 125 DEG C for the cooling system of the motor, which can realize copious cold and hot punching of motor, shorten testing time, and save testing cost.
Description
Technical field
The utility model relates to a kind of cold shock testing platform, particularly a kind of improvement degree of depth cold shock testing platform.
Technical background
In order to shorten the test period of engine cold thermal shock, the fatigue breakdown of acceleration motor gland shim, cylinder cap and other part, engine is broken down, test out the normal working hours of engine at short notice, just need liquid coolant (anti freezing solution) temperature difference of engine bigger.Coolant temperature is about 25 ℃～95 ℃ when engine carries out cold shock testing, and whole test generally needs more than 500 hour, and experimental period is long, the experimentation cost height.Therefore, need a kind of test-bed that can shorten test period and can realize the cold shock testing effect.
Summary of the invention
At the deficiencies in the prior art, this practicality provides a kind of temperature difference that increases engine coolant temperature, can realize the cold shock testing stand of degree of depth thermal shock.
The utility model cold shock testing stand comprises the cooling water recirculation system and the chilled water circulation system.The inlet channel of the chilled water circulation system water delivering orifice pipeline as motor cooling jacket in parallel with the cooling water recirculation system inlet channel, the outlet conduit of the chilled water circulation system inlet channel as motor cooling jacket in parallel with the outlet conduit of cooling water recirculation system.On the inlet channel of the chilled water circulation system and the outlet conduit valve is set, connects the downstream position of chilled water circulation system inlet channel valve and the upstream position of outlet conduit valve with the pipeline that has valve.On the inlet channel of cooling water recirculation system and the outlet conduit valve is set, connects the downstream position of cooling water recirculation system inlet channel valve and the upstream position of outlet conduit valve with the pipeline that has valve.
On the inlet channel of the chilled water circulation system or outlet conduit pump is set, when pump was arranged on the inlet channel, the position was the downstream of inlet channel and outlet conduit connectivity points; When pump was arranged on the outlet conduit, the position was the upstream of outlet conduit and inlet channel connectivity points; Preferably be arranged on the inlet channel.The pump setting and the chilled water circulation system of cooling water recirculation system are similar, and when promptly pump was arranged on the inlet channel, the position was the downstream of inlet channel and outlet conduit connectivity points; When pump was arranged on the outlet conduit, the position was the upstream of outlet conduit and inlet channel connectivity points; Preferably be arranged on the inlet channel.
In the utility model cold shock testing stand, temperature sensor and filtrator are set on the engine water outlet road.On the water inflow of the engine pipeline expansion tank is set, the position of expansion tank is higher than the peak of the inside and outside circulation system of engine coolant.
In the utility model cold shock testing stand, the liquid coolant in engine, cooling water recirculation system and the chilled water circulation system is anti freezing solution.The chilled water circulation system adopts the compression refrigeration mode, coolant temperature can be reduced to about-25 ℃, specifically can adjust as required.Cooling water recirculation system can be reduced to coolant temperature about 25 ℃ by heat exchanger, specifically adjusts as required.
In the utility model cold shock testing stand, each valve is a solenoid valve, and automaton is set, and automaton receives the temperature signal of temperature sensor, and according to the action of setting control electromagnetic valve and engine.
The design exports mounting temperature sensor at engine coolant, controls the cooling water recirculation system and the chilled water circulation system by control device according to the signal of temperature sensor.A kind of concrete mode enters engine-cooling system as the liquid coolant (about 25 ℃) that: engine starts in the cooling water recirculation system of back about-25 ℃, the chilled water circulation system enters oneself's circulation.Along with the engine running at full capacity; coolant temperature raises gradually; when temperature high the time to a certain degree (about) as 95 ℃; send signal by sensor to control device; control device sends switching value for corresponding valve according to this signal; cooling water recirculation system cold water pipeline is opened; with the liquid coolant heat-shift; reduce engine coolant temperature; when the temperature of engine coolant was reduced to 25 ℃ of left and right sides, control device sent signal, and the engine shutdown self-circulating valve of this system is simultaneously opened; close for engine provides the valve on the coolant duct, the temperature that system enters liquid coolant in the self-circulation maintenance system is about 25 ℃.
The chilled water circulation system among the design provides liquid coolant about-25 ℃ for engine; liquid coolant in the chilled water circulation system behind the engine shutdown is linked in the engine-cooling system; refrigerating fulid passes through engine under the suction of in-line pump; when the temperature of engine coolant outlet is reduced to-25 ℃ of left and right sides; control device sends signal; to control engine start; the chilled water circulation system enters oneself's circulation simultaneously; liquid coolant and the refrigerant in the compressor in the freezing water tank carry out heat interchange, and the temperature that remains the liquid coolant in this system is about-25 ℃.
Engine starts when liquid coolant is-25 ℃, rises the rotating speed application of load then rapidly, and when the heat temperature that liquid coolant absorption engine running produces rose to 95 ℃ of left and right sides, cooling water recirculation system was started working, and coolant temperature is dropped to 25 ℃ of left and right sides engine shutdowns.Liquid coolant in the chilled water circulation system (25 ℃, anti freezing solution) enters engine-cooling system, and when engine outlet coolant temperature reached-25 ℃, engine started once more.Reciprocation cycle like this, the engine coolant temperature difference reaches about 125 ℃, realizes degree of depth thermal shock.
Adopt above-mentioned technical scheme, the design has following excellent effect:
1, can satisfy degree of depth cold shock testing working condition requirement;
2, reduce test period;
3, save experimentation cost.
Description of drawings
Fig. 1 is the composition synoptic diagram of degree of depth cold shock testing stand.
Wherein: 1-engine, 2-freezing water tank, 3-expansion tank, the 4-filtrator, 5-refrigerating circulation system suction pump, 6-valve V1,7-valve V2,8-valve V3,9-cooling recirculation system suction pump, 10-valve V4,11-valve V5,12-valve V6,13-cooling recirculation system heat exchanger, 14-valve V7,15-valve V8, the 16-sensor, 17-refrigerating circulation system refrigeratory, 18-refrigerating circulation system refrigeration compressor.
Embodiment
The design is used for engine and carries out cold shock testing, and the design has added the chilled water circulation system in the engine cold Thermal Shock Test Bench, with itself and cooling water recirculation system common application in test-bed.The outlet conduit of the chilled water circulation system water inlet that is linked into engine in parallel among the design with the outlet conduit of heat exchanger in the cooling water recirculation system, and the inlet channel of the heat exchanger of the inlet channel of the chilled water circulation system and cooling water recirculation system and be connected to the water delivering orifice of engine, and on the water delivering orifice pipeline of engine mounting temperature sensor.The connection diagram of this design stand is seen Fig. 1.In addition at the water inlet pipe of engine and receive expansion tank, expansion tank top is provided with pressure control valve, overflow and gas outlet, the position of expansion tank is higher than the peak of the inside and outside circulation system of engine coolant, can make in the cooling internal circulation system and keep certain pressure, in order to avoid engine cool internal circulation system generation cavitation, the air in the cooling system also can be discharged by gas outlet.
As shown in Figure 1, when engine starts when liquid coolant is-25 ℃, this moment valve V1-6, valve V3-8 and valve V5-11 close, while valve V2-7, valve V4-10 and valve V6-12 open, liquid coolant in the heat exchanger 13 begins to enter into engine-cooling system, the temperature of the liquid coolant in the heat exchanger is about 25 ℃ at this moment, liquid coolant absorbs the heat that engine running produces, if engine coolant temperature is lower than 95 ℃ of liquid coolants and circulates at the engine interior pipeline, coolant temperature raises rapidly, when engine coolant temperature is elevated to 95 ℃, detect and send instruction by temperature sensor valve V7-14 and valve V8-15 are opened by system, while valve V1-6, valve V3-8 and valve V5-11 still close, valve V2-7, valve V4-10 and valve V6-12 are held open.Enter liquid coolant in chilled water and the engine-cooling system in the heat exchanger and carry out heat interchange reducing the temperature of liquid coolant in the engine, the temperature of liquid coolant is reduced to about 25 ℃ engine shutdown by 95 ℃.
Valve V1-6, valve V3-8 and valve V5-11 open behind the engine shutdown; valve V2-7, valve V4-10 and valve V6-12 close simultaneously; cooling water recirculation system enters oneself's circulation; the liquid coolant of the chilled water circulation system enters into the cooling system of engine; when engine outlet coolant temperature is reduced to-25 ℃; engine starts once more, and the test reciprocation cycle realizes the designing requirement of the testing table transformation of degree of depth thermal shock.
This practical design is used to transform the cold shock testing stand, and the cooling water recirculation system and the chilled water circulation system are used for the cold shock testing stand, realizes degree of depth thermal shock.The temperature difference of the liquid coolant of engine reaches about 125 ℃ when testing, and quickens the fatigue breakdown of gland shim and cylinder cap, shortens test period.With traditional cold shock testing stand relatively, have controllability strong, save test period, reduce experimentation cost, improve advantage such as experimental enviroment.Can fully satisfy the harsh requirement of current high level, top engine test to test condition.
It should be noted that at last: above embodiment is only in order to the mentality of designing that this practical design is described and the described technical scheme of unrestricted the utility model, therefore, although this instructions has been described in detail this practical design with reference to each above-mentioned embodiment, but, those of ordinary skill in the art should be appreciated that still and can make amendment or be equal to replacement this practical design.But all do not break away from the technical scheme and the improvement thereof of the spirit and scope of this practical design, and it all should be encompassed within the claim scope of this practical design.
Claims (7)
1. engine degree of depth cold shock testing platform, it is characterized in that: comprise the cooling water recirculation system and the chilled water circulation system, the inlet channel of the chilled water circulation system water delivering orifice pipeline as motor cooling jacket in parallel with the cooling water recirculation system inlet channel, the outlet conduit of the chilled water circulation system inlet channel as motor cooling jacket in parallel with the outlet conduit of cooling water recirculation system; On the inlet channel of the chilled water circulation system and the outlet conduit valve is set, connects the downstream position of chilled water circulation system inlet channel valve and the upstream position of outlet conduit valve with the pipeline that has valve; On the inlet channel of cooling water recirculation system and the outlet conduit valve is set, connects the downstream position of cooling water recirculation system inlet channel valve and the upstream position of outlet conduit valve with the pipeline that has valve.
2. according to the described testing table of claim 1, it is characterized in that: on the inlet channel of the described chilled water circulation system or outlet conduit pump is set, when pump was arranged on the inlet channel, the position was the downstream of inlet channel and outlet conduit connectivity points; When pump was arranged on the outlet conduit, the position was the upstream of outlet conduit and inlet channel connectivity points; On the inlet channel of cooling water recirculation system or the outlet conduit pump is set, when pump was arranged on the inlet channel, the position was the downstream of inlet channel and outlet conduit connectivity points; When pump was arranged on the outlet conduit, the position was the upstream of outlet conduit and inlet channel connectivity points.
3. according to the described testing table of claim 1, it is characterized in that: temperature sensor and filtrator are set on the engine water outlet road.
4. according to the described testing table of claim 1, it is characterized in that: on the water inflow of the engine pipeline expansion tank is set, the position of expansion tank is higher than the peak of the inside and outside circulation system of engine coolant.
5. according to the described testing table of claim 4, it is characterized in that: described expansion tank top is provided with pressure control valve, overflow and gas outlet.
6. according to the described testing table of claim 1, it is characterized in that: the liquid coolant in engine, cooling water recirculation system and the chilled water circulation system is anti freezing solution.
7. according to the described testing table of claim 1, it is characterized in that: described valve is a solenoid valve, and automaton is set, and automaton receives the temperature signal of temperature sensor, according to the action of setting control electromagnetic valve and engine.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2006201603257U CN201032475Y (en) | 2006-11-29 | 2006-11-29 | Engine deepness cold-hot shock test platform |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2006201603257U CN201032475Y (en) | 2006-11-29 | 2006-11-29 | Engine deepness cold-hot shock test platform |
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| Publication Number | Publication Date |
|---|---|
| CN201032475Y true CN201032475Y (en) | 2008-03-05 |
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| Application Number | Title | Priority Date | Filing Date |
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| CNU2006201603257U Expired - Fee Related CN201032475Y (en) | 2006-11-29 | 2006-11-29 | Engine deepness cold-hot shock test platform |
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| CN (1) | CN201032475Y (en) |
Cited By (12)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101782466B (en) * | 2009-01-15 | 2012-03-21 | 北京航空航天大学 | Cooling water system design for test bed |
| CN101968401B (en) * | 2009-07-28 | 2012-09-26 | 北汽福田汽车股份有限公司 | Cooling fluid temperature control system for testing engine performance |
| CN102706561A (en) * | 2012-05-30 | 2012-10-03 | 长城汽车股份有限公司 | Test device for verifying cold and heat cycle performance of engine radiator |
| CN102767985A (en) * | 2012-07-24 | 2012-11-07 | 江苏申久化纤有限公司 | Device for introducing cooling water to chilled water circulation system in polyester device |
| CN103234739A (en) * | 2013-04-01 | 2013-08-07 | 中国北方发动机研究所(天津) | Apparatus and method for testing thermal fatigue of cylinder covers |
| CN104266840A (en) * | 2014-10-11 | 2015-01-07 | 中国第一汽车股份有限公司 | Deep thermal shock testing device of heavy-duty engine |
| CN105067270A (en) * | 2015-08-28 | 2015-11-18 | 中国重汽集团济南动力有限公司 | Engine test system |
| CN105352733A (en) * | 2015-12-12 | 2016-02-24 | 哈尔滨东安汽车动力股份有限公司 | Novel hot and cold impact test method for automobile engine |
| CN110579419A (en) * | 2019-08-28 | 2019-12-17 | 安徽江淮汽车集团股份有限公司 | Low cycle fatigue reliability test method and device |
| CN111044296A (en) * | 2019-12-13 | 2020-04-21 | 湖南汉能科技有限公司 | Comprehensive test bed and test method for aero-engine parts |
| CN111521403A (en) * | 2020-05-06 | 2020-08-11 | 河南柴油机重工有限责任公司 | Automatic load regulation control method and system for cold and hot shock test of diesel engine |
| CN112147025A (en) * | 2020-09-28 | 2020-12-29 | 东风汽车集团有限公司 | Automatic control system for engine exhaust cold and hot impact fan |
-
2006
- 2006-11-29 CN CNU2006201603257U patent/CN201032475Y/en not_active Expired - Fee Related
Cited By (17)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101782466B (en) * | 2009-01-15 | 2012-03-21 | 北京航空航天大学 | Cooling water system design for test bed |
| CN101968401B (en) * | 2009-07-28 | 2012-09-26 | 北汽福田汽车股份有限公司 | Cooling fluid temperature control system for testing engine performance |
| CN102706561A (en) * | 2012-05-30 | 2012-10-03 | 长城汽车股份有限公司 | Test device for verifying cold and heat cycle performance of engine radiator |
| CN102767985A (en) * | 2012-07-24 | 2012-11-07 | 江苏申久化纤有限公司 | Device for introducing cooling water to chilled water circulation system in polyester device |
| CN103234739B (en) * | 2013-04-01 | 2016-08-31 | 中国北方发动机研究所(天津) | A kind of cylinder head thermal fatigue test apparatus and test method |
| CN103234739A (en) * | 2013-04-01 | 2013-08-07 | 中国北方发动机研究所(天津) | Apparatus and method for testing thermal fatigue of cylinder covers |
| CN104266840A (en) * | 2014-10-11 | 2015-01-07 | 中国第一汽车股份有限公司 | Deep thermal shock testing device of heavy-duty engine |
| CN105067270A (en) * | 2015-08-28 | 2015-11-18 | 中国重汽集团济南动力有限公司 | Engine test system |
| CN105067270B (en) * | 2015-08-28 | 2018-06-12 | 中国重汽集团济南动力有限公司 | A kind of engine test system |
| CN105352733A (en) * | 2015-12-12 | 2016-02-24 | 哈尔滨东安汽车动力股份有限公司 | Novel hot and cold impact test method for automobile engine |
| CN105352733B (en) * | 2015-12-12 | 2017-10-10 | 哈尔滨东安汽车动力股份有限公司 | A kind of automobile engine cold shock testing method |
| CN110579419A (en) * | 2019-08-28 | 2019-12-17 | 安徽江淮汽车集团股份有限公司 | Low cycle fatigue reliability test method and device |
| CN110579419B (en) * | 2019-08-28 | 2021-07-13 | 安徽江淮汽车集团股份有限公司 | Low cycle fatigue reliability test method and device |
| CN111044296A (en) * | 2019-12-13 | 2020-04-21 | 湖南汉能科技有限公司 | Comprehensive test bed and test method for aero-engine parts |
| CN111044296B (en) * | 2019-12-13 | 2021-03-23 | 湖南汉能科技有限公司 | Comprehensive test bed and test method for aero-engine parts |
| CN111521403A (en) * | 2020-05-06 | 2020-08-11 | 河南柴油机重工有限责任公司 | Automatic load regulation control method and system for cold and hot shock test of diesel engine |
| CN112147025A (en) * | 2020-09-28 | 2020-12-29 | 东风汽车集团有限公司 | Automatic control system for engine exhaust cold and hot impact fan |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20080305 Termination date: 20131129 |