CN100472195C - Failure test method for automobile cooling liquid storage tank - Google Patents
Failure test method for automobile cooling liquid storage tank Download PDFInfo
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- CN100472195C CN100472195C CNB2006101476171A CN200610147617A CN100472195C CN 100472195 C CN100472195 C CN 100472195C CN B2006101476171 A CNB2006101476171 A CN B2006101476171A CN 200610147617 A CN200610147617 A CN 200610147617A CN 100472195 C CN100472195 C CN 100472195C
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Abstract
Simulating practical operating condition (pressure, temperature, and ambient temperature etc. of liquid inside pot) of stock solution pot, keeping constant pressure, temperature of liquid inside the stock solution pot, and keeping ambient temperature within a certain range, the method can carry out durability test of stock solution pot for multiple test pieces. Computer monitors and controls overall testing process, and using computer technique collects pressure parameters of system. Using intelligent program determines experimental results of tested pieces automatically. Under specific operation condition, the invention obtains tested time staring operation to break of the stock solution pot. The invention plays important role in researching performance, designing and improving structure of the stock solution pot in order to full utilize limited resource, reduce energy consumption, and increase test efficiency.
Description
Technical field
The present invention relates to a kind of failure test method for automobile cooling liquid storage tank, belong to the electromechanical integration field.
Background technology
Because the structure and the operating mode of the cooling liquid storage tank of various types of automobiles are not quite similar, the fluid reservoir failure test does not have same method, can only come the testing equipment of design specialized to test according to concrete condition separately.Existing fluid reservoir test all adopts complete manual easy device to finish, and can not carry out environment temperature simulation.Because single test will continue not only to spend a large amount of manpowers about 500 hours, and tests the operating mode that can not reflect the fluid reservoir real work, the accuracy of test is had a greatly reduced quality.
Summary of the invention
The purpose of this invention is to provide a kind of method that can simulate environment for use, adopt computer control, a plurality of fluid reservoir to test simultaneously.In order to reach this purpose, the step of failure test method for automobile cooling liquid storage tank of the present invention is:
A. several described fluid reservoir test specimens are placed on and have that equal number detects station, continue more than 500 hours in the environment that can be incubated, described environment temperature is 40～90 ℃, continuously scalable;
B. feed low-corrosiveness or non-corrosiveness liquid medium for each fluid reservoir test specimen that detects on the station with certain pressure and temperature, medium circulation flows, thereby make medium temperature remain on 40～135 ℃, adjustable continuously, error is ± 2.5 degree, pressure medium remains on 1.0～3.0bar, and is adjustable continuously, precision ± 0.1bar; Described liquid medium is the ethylene glycol type liquid coolant;
C. the force value of online in real time tracer liquid medium system and temperature value;
D. periodically each test specimen was carried out rupture and leakage check, the method for inspection: read the test specimen force value No. 1, close this branch road valve every 5 minutes, read the force value of this test specimen after 20 seconds once more, pressure falls relatively, if front and back pressure falls above preset value, thinks that then this test specimen leaks; Do not surpass preset value if front and back pressure falls, think that then this test specimen does not leak, open this branch road valve simultaneously and continue test; In like manner and the like carry out other branch road leakage differentiate;
E. if differentiating certain test specimen that comes out leaks, close this way solenoid valve immediately, and write down from beginning to be tested to the time that leakage is experienced, this branch road withdraws from test;
F. other branch road continues test, all leaks up to all testpieces, and test finishes.
The monitoring software that above-mentioned check program and differentiation process are carried out by computing machine is finished.
Failure test method for automobile cooling liquid storage tank of the present invention has following characteristics: (1) can simulate the operating mode (pot liquid pressure and temperature, environment temperature etc.) of fluid reservoir and carry out experimental test, and precision of test result is improved greatly; (2) can test a plurality of test specimens simultaneously, can withdraw from test automatically after certain test specimen breaks, help making full use of Limited resources, cut down the consumption of energy, improve constantly testing efficiency; (3) the utilization computer technology is differentiated the experimental result of test specimen automatically by intelligent program, both can improve test accuracy effectively, can reduce tester's labour intensity significantly again; (4) test out the time that fluid reservoir work is experienced to breaking under specific operating mode, play crucial effects for the structure of studying fluid reservoir performance, design and improvement fluid reservoir.
Description of drawings
Fig. 1 is the process flow diagram of failure test method for automobile cooling liquid storage tank of the present invention.
Embodiment
Below in conjunction with accompanying drawing the specific embodiment of the present invention is described further.
Fluid reservoir failure test step of the present invention as shown in Figure 1, at first n fluid reservoir test specimen to be measured is placed in the cool-bag, have n in the container and detect station, environment temperature is 40～90 ℃, its temperature value is set according to the actual condition of fluid reservoir working environment, and its error range is ± 5 ℃;
Secondly feed liquid medium---ethylene glycol type liquid coolant by piping system for the test specimen fluid reservoir that each detects on the station with certain pressure and temperature, its concentration nearly 100%, possess low corrosion or do not have corrosive property, to reduce medium corrosion-damaged to test specimen; The pressure of medium is that 1.0～3.0bar, temperature are 40～135 ℃, and its temperature and pressure value also is that the operating mode during according to the fluid reservoir real work is set, and the pressure error scope is ± 0.1bar; And to require piping system be that test specimen continued pressure-maintaining and heat-preservation more than 500 hours;
Online in real time detects the force value and the temperature value of fluid dielectric coolant system;
Close the solenoid valve of No. 1 test specimen pipeline branch road, write down the force value of this testpieces this moment simultaneously, write down the force value of this testpieces after 20 seconds once more, if front and back pressure falls greater than predetermined value, then judge this test specimen leakage failure, this branch road is cut off deactivates, and record is from beginning to be tested to the time that leakage is experienced; If front and back pressure falls less than predetermined value, show that then test specimen did not also lose efficacy, open this way solenoid valve immediately, test specimen is dropped into test once more;
By that analogy, use the same method other test specimen is leaked differentiation;
The differentiation cycle was 5 minutes, repeated above-mentioned differentiation flow process every 5 minutes, all broke up to all test specimens, and termination test prints the test findings of each test specimen;
The monitoring software that above-mentioned check program and differentiation process are carried out by computing machine is finished.By computer settings simulated condition parameter, gather the experimentation data, send work order, record testing result etc.
Claims (5)
1. a failure test method for automobile cooling liquid storage tank the steps include:
A. several fluid reservoir test specimens are placed on and have equal number and detect in the environment of station, insulation and continue more than 500 hours, the temperature of described environment is 40～90 ℃;
B. be that by piping system each fluid reservoir test specimen that detects on station feeds low-corrosiveness or the non-corrosiveness liquid medium with certain pressure and temperature, require liquid medium temperature to remain on 40～135 ℃, medium pressure liquid and remain on 1.0～3.0bar;
C. the force value of online in real time tracer liquid medium system and temperature value;
D. periodically each fluid reservoir test specimen is carried out the rupture and leakage check at set intervals, the method of inspection is: read fluid reservoir test specimen force value No. 1, close the valve of No. 1 fluid reservoir test specimen pipeline branch road, read the force value of No. 1 fluid reservoir test specimen after 20 seconds once more, pressure falls relatively, if front and back pressure falls above preset value, think that then No. 1 fluid reservoir test specimen leaks; Do not surpass preset value if front and back pressure falls, think that then No. 1 fluid reservoir test specimen does not leak, the valve of opening No. 1 fluid reservoir test specimen pipeline branch road simultaneously continues test; In like manner and the like carry out other fluid reservoir test specimen leakage differentiate;
E. if certain fluid reservoir test specimen that differentiates leaks, close the valve of this fluid reservoir test specimen pipeline branch road immediately, and record is from beginning to be tested to the time that leakage is experienced, this fluid reservoir test specimen withdraws from test;
F. other fluid reservoir test specimen that detects on the station continues test, all leaks up to all fluid reservoir testpieces, and test finishes.
2. fluid reservoir failure test method as claimed in claim 1 is characterized in that: described liquid medium is an ethylene glycol type automobile specified liquid coolant.
3. fluid reservoir failure test method as claimed in claim 2 is characterized in that: liquid medium adopts and circulates the mode heat-insulation pressure keeping, and the liquid medium temperature value is adjustable continuously, and error is ± 2.5 ℃, and the medium pressure liquid value is adjustable continuously, and precision is ± 0.1bar.
4. fluid reservoir failure test method as claimed in claim 3 is characterized in that: periodically the time interval that each fluid reservoir test specimen is carried out rupture and leakage check is 5 minutes.
5. as claim 1,2,3 or 4 described fluid reservoir failure test methods, it is characterized in that: the leakage of fluid reservoir test specimen is fallen by pressure before and after the valve turn off delay time of this fluid reservoir test specimen pipeline branch road and is discerned, and whole test and identifying are finished by computer monitoring software.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB2006101476171A CN100472195C (en) | 2006-12-20 | 2006-12-20 | Failure test method for automobile cooling liquid storage tank |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB2006101476171A CN100472195C (en) | 2006-12-20 | 2006-12-20 | Failure test method for automobile cooling liquid storage tank |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN1987393A CN1987393A (en) | 2007-06-27 |
| CN100472195C true CN100472195C (en) | 2009-03-25 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNB2006101476171A Expired - Fee Related CN100472195C (en) | 2006-12-20 | 2006-12-20 | Failure test method for automobile cooling liquid storage tank |
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| CN (1) | CN100472195C (en) |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103712070B (en) * | 2014-01-06 | 2016-08-17 | 山东交通学院 | A kind of water supply network pressure monitoring method |
| CN106802336B (en) * | 2017-03-07 | 2020-03-06 | 中国石油化工股份有限公司 | Fire storage tank failure mode research system and research method |
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2006
- 2006-12-20 CN CNB2006101476171A patent/CN100472195C/en not_active Expired - Fee Related
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| Publication number | Publication date |
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| CN1987393A (en) | 2007-06-27 |
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Granted publication date: 20090325 Termination date: 20111220 |