CN203101057U - Novel cold and hot impact test device of diesel engine - Google Patents
Novel cold and hot impact test device of diesel engine Download PDFInfo
- Publication number
- CN203101057U CN203101057U CN 201320064609 CN201320064609U CN203101057U CN 203101057 U CN203101057 U CN 203101057U CN 201320064609 CN201320064609 CN 201320064609 CN 201320064609 U CN201320064609 U CN 201320064609U CN 203101057 U CN203101057 U CN 203101057U
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Abstract
The utility model particularly discloses a novel cold and hot impact test device of a diesel engine. The novel cold and hot impact test device of the diesel engine comprises a heat exchanger, a control system, a three-way adjusting valve and two temperature sensors, wherein the control end of the three-way adjusting valve is connected with the control system; one of three interfaces of the three-way adjusting valve is connected with a water outlet of an engine; one interface is connected with a water inlet of the engine; another interface is connected with an inlet of the heat exchanger; an outlet of the heat exchanger is connected with the water inlet of the engine; the heat exchanger is also connected with a frozen water source; one of two temperature sensors is arranged at the water outlet of the engine; the other temperature sensor is arranged on the water inlet of the engine; and the temperature sensors are respectively connected with the control system.
Description
Technical field
The utility model is specifically related to a kind of cold shock testing table apparatus of diesel engine.
Background technology
Along with improving constantly of diesel engine strengthening degree, the thermal load of heated component also increases thereupon, and the thermal load of diesel engine has determined the economy and the reliability of diesel engine to a great extent.Therefore, the heat analysis of heated component and examination are the emphasis that diesel engine conducts heat and studies always.
Heated component is owing to the too high ability of losing the job of temperature, and the 2nd, heated component produces big thermal stress owing to thermograde is excessive, heat fatigue is destroyed.Analyze from diesel engine condition thermal load analysis is divided into two kinds of situations; the one, the quasistatic thermal load analysis under the diesel engine steady-working state, the 2nd, the examination diesel engine is in the dynamic thermal load analysis and the examination of startup, shutdown, variable working condition and transient state periodic duty process.And cold shock testing is important means in the above-mentioned heat transfer research, is the necessary project of motor car engine fail-test.The accurate cold shock testing platform rapidly of one cover provides the necessaries that meets the thermal shock requirement.
Early stage diesel engine cold shock testing platform level is low, adopts a boiler, and the heat fatigue degree of heated component is examined in cold water storage cistern and timer alternation.Because process changes slowly, thermal stress changes violent inadequately.In recent decades, because rapid development of computer technology and widespread use make that the operation control system precision is more accurate.Thermal boundary based on test is more accurate, reliable, utilization is convenient.
The utility model content
For solving the shortcoming that prior art exists, the utility model provides a kind of cold shock testing table apparatus of diesel engine.
The technical solution adopted in the utility model is as follows:
A kind of cold shock testing table apparatus of diesel engine, comprise heat interchanger, control system, three-way control valve and two temperature sensors, the control end of described three-way control valve links to each other with control system, and in three interfaces of three-way control valve, one links to each other with the water delivering orifice of engine, one links to each other with the water inlet of engine, one links to each other with the import of heat interchanger, the outlet of heat interchanger links to each other with the water inlet of engine, and heat interchanger also links to each other with freezing water source, one of described two temperature sensor are installed on the engine water delivering orifice, and one is installed on the engine water inlet, and links to each other with control system respectively.
Described control system also links to each other with high expansion water box.
Described three-way control valve is the air bladder three-way control valve.
Described control system also links to each other with low flush tank.
The beneficial effects of the utility model are as follows:
The utility model is set up the test checking system of a cover diesel engine thermal shock in testing laboratory, heated component such as piston, piston ring, cylinder cap, cylinder sleeve etc. are used in the short time in testing laboratory born the strong stress that colds and heat succeed each other, expose problem rapidly, accurately, provide foundation for diesel engine conducts heat to study.It is technical that novel cold shock testing device is applied to engine reliability test to advanced refrigeration regulation technology, observation and control technology, for the internal combustion engine whole Coupling Research of conducting heat provides a kind of effective means.When cold shock testing, the refrigerating fulid and the external refrigerating system liquid that cool off through heat interchanger use simultaneously in addition.Regulate shunting by the air bladder three-way control valve that pressurized air promotes, dynamic adjustments coolant rate under the design temperature condition, the fastest temperature-responsive time is no more than 10s.Satisfy of the requirement of GB/T19055-2003 diesel engine reliability test method fully about the cold shock testing standard.Owing in the computer control of system, set, can make heat interchanger energy savings to greatest extent according to the controlled target automated intelligent.
Select a kind of vortex wind-cooled cold-water unit that can do the refrigerating capacity increase and decrease according to diesel engine heat dissipation capacity size for use, unit inner cold water coil pipe adopts corrugated fin, and with on mechanical expanding method expanded joint and the copper pipe, heat transfer efficiency is exceedingly fast.Select for use hydrophilic aluminium foil to reach extremely excellent heat transfer characteristic simultaneously.Chilled water temperature required during cold shock can reach≤and 10 ℃.The heat that deep fat medium in the diesel engine-antirust anti-freeze cooling liquid is taken out of is taken away by large-area plate type heat exchanger by chilled water.
The utility model diesel engine cold shock testing device is selected high expansion water box for use, can eliminate the steam of cooling system mesolow part, unlikely generation air-resistance phenomenon.And can in time replenish liquid coolant for cooling system.Be provided with liquid level stop up and down in the high expansion water box.When liquid coolant dropped to down liquid level, stop sent information, passed to control system, and the fluid infusion solenoid valve is opened to the expansion tank fluid infusion.
The utility model diesel engine cold shock testing device adopts intelligence control system, can combine by the temperature of setting, the automatic adjusting of pressure requirement and 19 inches racks, Panther DCU type bench test controller, sensor interface module, industrial computer and Panther softwares.
Description of drawings
Fig. 1 is the utility model diesel engine cold shock testing device systematic schematic diagram;
Among the figure: the water delivering orifice of 1 motor, 2 three-way control valves, 3 control system, 4 heat interchanger, the water inlet of 5 motor, the temperature sensor of 6 water delivering orifices, the temperature sensor of 7 water inlets, 8 low flush tankes, 9 high temperature expansion tanks, 10 handpiece Water Chilling Units, 11 header tanks, 12 freezing water tanks, F1 chilled water water intake ball valve, F2 chilled water water outlet ball valve, the common chilled water water intake ball valve of F3, the common chilled water water outlet of F4 ball valve, liquid level sensor under the last liquid level sensor of SL001, the SL002.
Embodiment
Below in conjunction with accompanying drawing the utility model is elaborated:
The utility model comprises heat interchanger 4, control system 3, three-way control valve 2 and two temperature sensors, the control end of three-way control valve 2 links to each other with control system 3, and in three interfaces of three-way control valve 2, one links to each other with the water delivering orifice 1 of engine, one links to each other with the water inlet 5 of engine, import with heat interchanger 4 links to each other, the outlet of heat interchanger 4 links to each other with the water inlet of engine 5, and heat interchanger 4 also links to each other with freezing water source, water delivering orifice 1 that is installed on engine of described two temperature sensors, a water inlet 5 that is installed on engine, and link to each other with control system 3 respectively.Control system 3 also links to each other with high expansion water box 9.Described three-way control valve 2 is the air bladder three-way control valve.Control system also links to each other with low flush tank 8.
During thermal shock, the hot water (refrigerating fulid that has heated) that is come out by engine-cooling system enters this device from motor water outlet 1, reach heat towards design temperature, control system 3 is after the engine outlet water temperature at temperature sensor 6 places of the water delivering orifice that receives engine reaches the thermal shock design temperature, send instruction according to preset program, keep this temperature and continue test.Flow of hot water is crossed the cold flow A-B path of air bladder three-way control valve 2, shunting enters plate type heat exchanger 4 heat passages, then after heat interchanger 4 coolings, flow out this device, turn back to the engine-cooling system water inlet from motor water outlet 5 and circulate by outlet pipeline.
The temperature sensor 7 that is arranged in the temperature sensor 6 of water delivering orifice of turnover pipeline and water inlet is monitored the hot water temperature who passes in and out this device respectively and is fed back to control system 3, control system 3 is controlled three-way control valve 2 according to the signal of each sensor feedback, thereby guarantees that controlled water temperature keeps in allowed limits.
From the cold flow channel side that the chilled water of handpiece Water Chilling Units 10 enters high-temperature heat-exchanging by freezing water tank 12 usefulness water pumps, after heating up, heat absorption flows back to the header tank 11 of handpiece Water Chilling Units 10, by vortex wind-cooled cold-water unit, enter recycle after the cooling cooling.
During cold shock, cold flow A-B the path of three-way control valve 2 is opened fast, hot-fluid A-C path quick closedown, the hot water that engine-cooling system comes out (anti freezing solution) all flows through the cold flow A-B path of three-way control valve 2 in water inlet pipe, the hot-fluid side that enters cooling plate type heat exchanger 4 is after the heat exchange cooling, flowed out by rising pipe, return engine cooling system water inlet circulates.Water delivering orifice 1 place's temperature of engine is approaching rapidly and reach the cold punching design temperature, finishes a thermal shock circulation.
The water inlet leaving water temperature sensor of engine, manually the hydraulic control system that places is that last liquid level sensor SL001, time liquid level sensor SL002 in the high expansion water box 9 control by control system 3.
When carrying out conventional test, close chilled water water intake ball valve F1 and chilled water water outlet ball valve F2, open common chilled water water intake ball valve F3 and common chilled water water outlet ball valve F4, adopt common chilled water.Easy switching reduces the test cost of investment.
Claims (4)
1. novel diesel engine cold shock testing device, it is characterized in that: comprise heat interchanger, control system, three-way control valve and two temperature sensors, the control end of described three-way control valve links to each other with control system, and in three interfaces of three-way control valve, one links to each other with the water delivering orifice of engine, one links to each other with the water inlet of engine, one links to each other with the import of heat interchanger, the outlet of heat interchanger links to each other with the water inlet of engine, and heat interchanger also links to each other with freezing water source, one of described two temperature sensor are installed on the engine water delivering orifice, and one is installed on the engine water inlet, and links to each other with control system respectively.
2. test unit as claimed in claim 1 is characterized in that: described control system also links to each other with high expansion water box.
3. test unit as claimed in claim 1 is characterized in that: described three-way control valve is the air bladder three-way control valve.
4. test unit as claimed in claim 1 is characterized in that: described control system also links to each other with low flush tank.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201320064609 CN203101057U (en) | 2013-02-02 | 2013-02-02 | Novel cold and hot impact test device of diesel engine |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201320064609 CN203101057U (en) | 2013-02-02 | 2013-02-02 | Novel cold and hot impact test device of diesel engine |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203101057U true CN203101057U (en) | 2013-07-31 |
Family
ID=48852449
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201320064609 Expired - Lifetime CN203101057U (en) | 2013-02-02 | 2013-02-02 | Novel cold and hot impact test device of diesel engine |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203101057U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112098122A (en) * | 2020-08-19 | 2020-12-18 | 中国第一汽车股份有限公司 | Heat radiator cold and hot impact bench test method based on whole vehicle heat management system |
| CN113310694A (en) * | 2021-04-22 | 2021-08-27 | 中国地质大学（武汉） | Cold and hot impact test system for engine |
| CN113944538A (en) * | 2021-10-20 | 2022-01-18 | 一汽解放大连柴油机有限公司 | Engine test bed cooling system and engine test bed cooling method |
-
2013
- 2013-02-02 CN CN 201320064609 patent/CN203101057U/en not_active Expired - Lifetime
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112098122A (en) * | 2020-08-19 | 2020-12-18 | 中国第一汽车股份有限公司 | Heat radiator cold and hot impact bench test method based on whole vehicle heat management system |
| CN112098122B (en) * | 2020-08-19 | 2022-06-17 | 中国第一汽车股份有限公司 | Heat radiator cold and hot impact bench test method based on whole vehicle heat management system |
| CN113310694A (en) * | 2021-04-22 | 2021-08-27 | 中国地质大学（武汉） | Cold and hot impact test system for engine |
| CN113944538A (en) * | 2021-10-20 | 2022-01-18 | 一汽解放大连柴油机有限公司 | Engine test bed cooling system and engine test bed cooling method |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CX01 | Expiry of patent term | ||
| CX01 | Expiry of patent term |
Granted publication date: 20130731 |