CN102865974A - Leakage detection method for air pipelines of large-sized road maintenance machine product - Google Patents
Leakage detection method for air pipelines of large-sized road maintenance machine product Download PDFInfo
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- CN102865974A CN102865974A CN2012103427404A CN201210342740A CN102865974A CN 102865974 A CN102865974 A CN 102865974A CN 2012103427404 A CN2012103427404 A CN 2012103427404A CN 201210342740 A CN201210342740 A CN 201210342740A CN 102865974 A CN102865974 A CN 102865974A
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Abstract
The invention discloses a leakage detection method for air pipelines of a large-sized road maintenance machine product. The method comprises the following steps of: classifying the air pipelines of the large-sized road maintenance machine product according to a schematic diagram of a pneumatic part of the large-sized road maintenance machine product before the air pipelines are assembled; after one class of air pipelines are assembled, detecting the air pipelines of the class by utilizing an air pipeline leakage detection device, and maintaining leakage points; after the leakage detection and maintenance of the air pipelines of the class are finished, assembling the air pipelines of the next class, and repeating the detection and maintenance processes; and detecting and maintaining the rest air pipelines in the same manner to finish the assembly and detection of all the air pipelines of the large-sized road maintenance machine product. According to the air pipeline leakage detection method for the large-sized road maintenance machine product, the air pipelines are classified and detected before being assembled, so that production and debugging cycles can be shortened, and the debugging efficiency can be improved.
Description
Technical field
The embodiment of the invention relates to the impermeability detection technique, relates in particular to a kind of air pipe line leakage detection method of large-scale maintenance machinery product.
Background technology
Along with China railways at a high speed, the fast development of heavy duty and comfortableization, be the normal operation that guarantees train, planned, systemic, regularly use the large-scale maintenance machinery product that circuit is carried out inspection and maintenance to be very important.At present, the large-scale maintenance machinery product of China's use mainly contains line tamping car, turnout tamping car, power stabilizing machine, screen scarifier, joins tiny fragments of stone, coal, etc. shaping vehicle, rail grinding machine etc.These large-scale maintenance machinery products are carried out detection and the maintenance of each system, make it normal, the work of safety just seems particularly important.
The air pipe line kind of the more general locomotive of air system pipeline kind of large-scale maintenance machinery product is many.Because being generally steel pipe and steel pipe trend, its used air system pipeline has plasticity, so the air pipe line trend is more hidden and generally all surrounded by car body or other large components on every side.Because the factors such as the singularity of air system pipeline institute transmission of pressure medium, the quality of pipeline connecting parts, operator's technical ability are easy to occur the situation that air pipe line leaks.In the prior art, the air pipe system of large-scale maintenance machinery being carried out airtight test finished in the car load debugging stage of reorganizing and outfit.This just requires must guarantee that all relevant portions all finish just and can carry out before the airtight test that carries out air pipe line.
There is following defective in above-mentioned prior art: in case after the key component of air pipe line is found to leak, because of factor affecting such as pipeline are overlapping, may need to tear open greatly large moving, even sometimes also can just can deal with problems through repeatedly returning something for repairs, increase thus the production debugging cycle, reduced debugging efficiency.
Summary of the invention
The invention provides a kind of air pipe line leakage detection method of large-scale maintenance machinery product, adopt existing detection method after the key component of finding air pipe line is leaked in order to solve, need to tear open greatly greatly moving, even the production debugging cycle brought of repeatedly returning something for repairs is long, the problem that debugging efficiency is low.
The embodiment of the invention provides a kind of air pipe line leakage detection method of large-scale maintenance machinery product, comprising:
According to the pneumatic part schematic diagram of large-scale maintenance machinery product, before the assembling air pipe line, the air pipe line of described large-scale maintenance machinery product is classified;
After assembling a class air pipe line, application of air pipeline leakage pick-up unit detects such air pipe line, and the leak source that occurs is keeped in repair;
After finishing the Leak Detection and maintenance of a class air pipe line, assemble next class air pipe line, and repeat above-mentioned detection and maintenance process; The rest may be inferred, finishes assembling and the detection of all air pipe lines of described large-scale maintenance machinery product.
It is various and move towards hidden product that the air pipe line leakage detection method of large-scale maintenance machinery product provided by the invention is applicable to assembling work for inspection, the especially air pipe line of all kinds of large-scale maintenance machinery products.By in the assembling production run, checking assembling quality, effectively reduce or eliminate debugging and reorganize and outfit the stage because of returning something for repairs that air pipe line impermeability problem causes, avoided the large-scale task of returning something for repairs, reduce operator's labour intensity, shorten the production debugging cycle, improved debugging efficiency.
Description of drawings
The air pipe line leakage detection method process flow diagram of a kind of large-scale maintenance machinery product that Fig. 1 provides for the embodiment of the invention;
Regulator synoptic diagram in the air pipe line leak detecting device that Fig. 2 provides for the embodiment of the invention.
Embodiment
At present, for the air pipe line impermeability detection of large-scale maintenance machinery product, the normal method that adopts of technician is: the stage is reorganized and outfit in the debugging at the large-scale maintenance machinery product, air pipe line is suppressed as external wind source with air compressor; When pressure reaches required pressure, cut off path between air compressor and the air pipe line; By listening the method leak check point of (Leakage Gas sound) and brush suds; Leakage point is processed, it is no longer leaked.
In case the somewhere air pipe line is found to leak, just need to could process the earth pressure release in all air pipe lines to leakage point, if car body or miscellaneous part intervention tool frock are arranged when processing leakage point, just need to tear open greatly pipeline large moving, increased thus operator's labour intensity, and overall air pipe line volume is larger, suppresses when processing leakage point and the relief pressure time also can be very long at every turn.Technical solution of the present invention provides a kind of air pipe line leakage detection method of large-scale maintenance machinery product in order to address the above problem, and the below will describe in detail by specific embodiment.
The air pipe line leakage detection method process flow diagram of a kind of large-scale maintenance machinery product that Fig. 1 provides for the embodiment of the invention.As shown in Figure 1, concrete grammar comprises:
Wherein the air pipe line of described large-scale maintenance machinery product is classified, take JZ-7 type brake as example, all air pipe lines can be divided into: blast main, train pipe, the independent brake pipeline, the independent release pipeline, braking earthen pipe, other pipelines (comprising work air pipe line and above not mentioned pipeline) 6 classes.And then with pipeline respectively with joint car, valve body (because the installation site of valve body is generally all at space larger part) etc. as cut-point will above 6 class pipeline segmentations (mainly the head and the tail of the segmentation principle section of being should at the space larger part).
Wherein the air pipe line leak detecting device comprises air compressor machine, regulator and shutoff; Air compressor machine is suppressed air pipe line to be detected as external wind source; Regulator is used for that air pipe line to be detected is carried out pressure to be regulated and concrete testing, as shown in Figure 2, described regulator comprises: stop valve (S1, S2 and S3), pressure limiting valve 1, oil-water separator 2, pressure regulator valve 3, single needle tensimeter 4 and connecting line 5; It is terminal that shutoff is used for the shutoff pipeline, also answers the shutoff bye-pass terminal if any bye-pass.Described regulator is connected with air compressor machine through the A end, is connected with air pipe line to be detected through the B end, and the C end is the earth pressure release port.
Before the air pipe line leak detecting device detects certain class air pipe line, need to determine that the regulator impermeability is good, the single needle tensimeter is checked, and pressure limiting valve is normal, normally carries out to guarantee testing.
The air pipe line leak detecting device to the detailed process that certain class air pipe line detects is:
1. close stop valve S2 and S3 in the regulator, open stop valve S1, start air compressor machine.Regulate pressure regulator valve 3, pressure is adjusted to predetermined value: the maximum pressure+0.2bar(that bears during detected air pipe line work is because the maximum pressure value tolerance of general air pipe line work is 0.1bar);
2. after single needle tensimeter 4 arrives predetermined value, open stop valve S3, to being detected punching press in the air pipe line, after the single needle tensimeter arrives predetermined value and pressure stability again, close stop valve S1, pressurize 60s;
3. pressurize is simultaneously listened to be examined air pipe line and to have or not serious leakage point along the line, if having then respective handling is carried out in the leak point, enters next step after the processing;
4. detect air pipe line joint along the line junction with suds and have or not slight leakage, if having then respective handling is carried out in the leak point, enter next step after the processing;
To through above-mentioned serious leakage and slight Leak Detection and the air pipe line after processing suppress pressurize to the predetermined value, if pressure drop behind the 300s＜detected air pipe line impermeability of 0.1bar explanation is qualified; If 0.1bar, then come back to previous step.
Here emphasize, all to discharge first air pipe line pressure when each time the leak point being processed, concrete operations are for opening stop valve S2 and S3, close S1, so that air pipe line Air pressure is discharged from the C end of regulator, after finishing dealing with, treat after the test tube road carries out pressurising and pressure maintaining period through above-mentioned 1-2 step again, carry out again next step detection.
Step 103, finish a class air pipe line Leak Detection and the maintenance after, assemble next class air pipe line, and repeat above-mentioned detection and maintenance process; The rest may be inferred, finishes assembling and the detection of all air pipe lines of described large-scale maintenance machinery product.
Concrete, after finishing the Leak Detection and maintenance of a class air pipe line, next class air pipe line that the pneumatic part schematic diagram of foundation large-scale maintenance machinery product is divided is assembled and detected, pick-up unit and process are identical to the detailed process that certain class air pipe line detects with step 102 Air pipeline leakage pick-up unit, do not do at this and give unnecessary details; The rest may be inferred, whenever finishes the assembling of a class air pipe line, just such air pipe line carried out Leak Detection, and process the leak point.When each class air pipe line is carried out leak detection, such air pipe line that detects is not connected with other class air pipe lines, until classification finish described large-scale maintenance machinery product all air pipe lines assembling and detect after again the air pipe line of all classes is carried out overall package.
Concrete, finish in classification described large-scale maintenance machinery product all air pipe lines assembling and detect after, still can continue to adopt existing detection method, carry out the leak detection of pipeline for the integrated air pipeline after the assembling.At this moment, owing to finish for the detection of all kinds of air pipe lines inside, so when again occurring revealing, the leak point only can appear at the tie point place of all kinds of pipelines, and these tie point major parts all are more obvious at vehicle body, and surrounding space is larger, is easy to the place that frock is carried out maintenance process, so maintenance process is also comparatively easy.
The air pipe line leakage detection method of a kind of large-scale maintenance machinery product that the embodiment of the invention provides, it is various and move towards hidden product to be applicable to assembling work for inspection, the especially air pipe line of all kinds of large-scale maintenance machinery products.By in the assembling production run, checking assembling quality, effectively reduce or eliminate debugging and reorganize and outfit the stage because of returning something for repairs that air pipe line impermeability problem causes, avoided the large-scale task of returning something for repairs, reduce operator's labour intensity, shortened the production debugging cycle.
It should be noted that at last: above embodiment only in order to technical scheme of the present invention to be described, is not intended to limit; Although with reference to previous embodiment the present invention is had been described in detail, those of ordinary skill in the art is to be understood that: it still can be made amendment to the technical scheme that aforementioned each embodiment puts down in writing, and perhaps part technical characterictic wherein is equal to replacement; And these modifications or replacement do not make the essence of appropriate technical solution break away from the spirit and scope of various embodiments of the present invention technical scheme.
Claims (2)
1. the air pipe line leakage detection method of a large-scale maintenance machinery product is characterized in that, comprising:
According to the pneumatic part schematic diagram of large-scale maintenance machinery product, before the assembling air pipe line, the air pipe line of described large-scale maintenance machinery product is classified;
After assembling a class air pipe line, application of air pipeline leakage pick-up unit detects such air pipe line, and the leak source that occurs is keeped in repair;
After finishing the Leak Detection and maintenance of a class air pipe line, assemble next class air pipe line, and repeat above-mentioned detection and maintenance process; The rest may be inferred, finishes assembling and the detection of all air pipe lines of described large-scale maintenance machinery product.
2. method according to claim 1 is characterized in that, the classification of the air pipe line of described large-scale maintenance machinery product comprises: blast main, train pipe, independent brake pipeline, independent release pipeline, braking earthen pipe, work air pipe line.
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| CN2012103427404A CN102865974A (en) | 2012-09-14 | 2012-09-14 | Leakage detection method for air pipelines of large-sized road maintenance machine product |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN103557999A (en) * | 2013-10-24 | 2014-02-05 | 国家电网公司 | Method for improving troubleshooting efficiency of shear pin system of water turbine |
| CN107449561A (en) * | 2017-06-13 | 2017-12-08 | 中车青岛四方机车车辆股份有限公司 | The detection method of bogie brakes leakage |
| CN113884239A (en) * | 2021-08-13 | 2022-01-04 | 中车南京浦镇车辆有限公司 | Train braking system pipeline leakage diagnosis method based on TCMS data |
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Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103557999A (en) * | 2013-10-24 | 2014-02-05 | 国家电网公司 | Method for improving troubleshooting efficiency of shear pin system of water turbine |
| CN103557999B (en) * | 2013-10-24 | 2016-02-17 | 国家电网公司 | A kind of method improving water turbine shear pin system failure investigation efficiency |
| CN107449561A (en) * | 2017-06-13 | 2017-12-08 | 中车青岛四方机车车辆股份有限公司 | The detection method of bogie brakes leakage |
| CN113884239A (en) * | 2021-08-13 | 2022-01-04 | 中车南京浦镇车辆有限公司 | Train braking system pipeline leakage diagnosis method based on TCMS data |
| CN113884239B (en) * | 2021-08-13 | 2023-12-22 | 中车南京浦镇车辆有限公司 | Train braking system pipeline leakage diagnosis method based on TCMS data |
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Application publication date: 20130109 |