CN108007635A - A kind of test method of micro-positive pressure of machinery chamber of locomotive - Google Patents
A kind of test method of micro-positive pressure of machinery chamber of locomotive Download PDFInfo
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- CN108007635A CN108007635A CN201610933849.3A CN201610933849A CN108007635A CN 108007635 A CN108007635 A CN 108007635A CN 201610933849 A CN201610933849 A CN 201610933849A CN 108007635 A CN108007635 A CN 108007635A
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- locomotive
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01L—MEASURING FORCE, STRESS, TORQUE, WORK, MECHANICAL POWER, MECHANICAL EFFICIENCY, OR FLUID PRESSURE
- G01L13/00—Devices or apparatus for measuring differences of two or more fluid pressure values
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- General Physics & Mathematics (AREA)
- Testing Of Devices, Machine Parts, Or Other Structures Thereof (AREA)
- Electric Propulsion And Braking For Vehicles (AREA)
Abstract
The present invention provides a kind of test method of micro-positive pressure of machinery chamber of locomotive, which includes：According to equipment deployment scenarios between locomotive machinery, several regions will be divided between machinery, regional space size is as far as possible average, such that a test cell is regarded as in each region；One distributed data acquisition host is set in each test cell, wherein this distributed data collection host is based on microprocessing, is designed using integrated circuit and Low Voltage Technique, is made of probe, transmission cable and host.It is integrated with a variety of existing sensors and transmitter (including multiple pressure, temperature etc.)；By using distributed data acquisition host intercommunication mode, test process is divided into unit, some test points gathered data at the same time is broken up by unit again, so that test process is more reasonable, avoid as being acquired using a collection host, the defects of test point difficult arrangement away from host, test point interface is limited.
Description
Technical field
The present invention relates to electric locomotive technical field, more particularly to a kind of test method of micro-positive pressure of machinery chamber of locomotive.
Background technology
Many electrical equipments are housed in the machinery of electric locomotive, these electric components are mostly heavy current installation, machinery
The quality of interior environment will influence these electric components, and whether safety normally works, wherein the presence of micro-positive pressure is one between machinery
Kind of effective measures, on the one hand ensure internal cleaning between machinery, on the other hand ensure heavy current installation produce substantial amounts of heat and
When exclude car outside.Judgement for micro-positive pressure of machinery chamber of locomotive at present is also without accurate data target, mostly by locomotive machinery
Between with respect to the positive pressure maintained outside car not less than 50Pa*, the absolute value of pressure differential is not more than between drivers' cab between locomotive machinery
The requirement of 150Pa*, and with note：Above-mentioned requirements and parameter will finally be determined by Prototype Test.Therefore it typically as
What research data proposed.This patent describes a kind of test method of new micro-positive pressure of machinery chamber of locomotive, can be effective
It is accurate that micro-positive pressure machinery is tested, the experimental test data reference of this aspect can be provided for locomotive design and ground
Study carefully demonstration, micro-positive pressure is just right between accomplishing machinery, ensures the interior cleaning of machinery and provides comfortable operation ring for driver and conductor
Border.
The content of the invention
The present invention provides a kind of test method of micro-positive pressure of machinery chamber of locomotive, to solve the problems of the prior art, leads to
Effective accurate test data is crossed, proposes that suitable micro-positive pressure of machinery chamber of locomotive data reference and research are discussed for locomotive design
Card, just right micro-positive pressure environment between guarantee is mechanical.
The present invention provides a kind of test method of micro-positive pressure of machinery chamber of locomotive, which includes：
According to equipment deployment scenarios between locomotive machinery, several regions will be divided between machinery, regional space size is as far as possible average,
It is such that a test cell is regarded as in each region；
One distributed data acquisition host is set in each test cell, wherein this distributed data collection host
Design based on microprocessing, using integrated circuit and Low Voltage Technique, be made of probe, transmission cable and host.It is integrated with
A variety of existing sensors and transmitter (including multiple pressure, temperature etc.)；
In each test cell, choose some test points (test point quantity must not be less than 3).Probe is fixed on choosing
In good test point, some test points in this unit at the same time, are constantly monitored by probe, monitoring result is passed through transmission
Cable is transmitted to data collection host in this unit；
Each test cell data collection host in machinery is interconnected by transmission cable, and work is sent to finally by cable
On condition computer, the information such as pressure, temperature between Computer display Current mechanical；
Same respectively sees air outside drivers' cab and car as a test cell, is monitored, monitoring data are transmitted
Give condition calculating machine, condition calculating machine calculate between machinery between drivers' cab pressure difference, machinery with atm difference outside car.
A kind of test method of micro-positive pressure of machinery chamber of locomotive provided by the invention, can test locomotive in static and dynamic operation condition
Under machinery between micro-positive pressure situation, by using distributed data acquisition host intercommunication mode, test process is divided into unit,
Some test points gathered data at the same time is broken up by unit again, so that test process is more reasonable, is avoided as used one
The defects of collection host is acquired, the test point difficult arrangement away from host, test point interface is limited.
A kind of test method of micro-positive pressure of machinery chamber of locomotive provided by the invention, has test equipment connection and reasonable arrangement, method
The features such as simplicity, test data is comprehensive, accurate, reliable.
Brief description of the drawings
Fig. 1 is a kind of test method flow chart of micro-positive pressure of machinery chamber of locomotive of the present invention；
Fig. 2 is a kind of system layout of the test method of micro-positive pressure of machinery chamber of locomotive of the present invention.
Specific embodiment
To make the purpose, technical scheme and advantage of the embodiment of the present invention clearer, below in conjunction with the embodiment of the present invention
In attached drawing, the technical solution in the embodiment of the present invention is clearly and completely described, it is clear that described embodiment is
Part of the embodiment of the present invention, instead of all the embodiments.Based on the embodiments of the present invention, those of ordinary skill in the art
All other embodiments obtained without creative efforts, belong to the scope of protection of the invention.
Fig. 1 provides a kind of flow diagram of the test method of micro-positive pressure of machinery chamber of locomotive for one embodiment of the invention；
As shown in Figure 1, the present invention specifically comprises the following steps：
Step 101, according to equipment deployment scenarios between locomotive machinery, several regions, regional space size will be divided between machinery
As far as possible average, each region is set as a test cell；Likewise, drivers' cab is set as a test cell, by outside car
Air is set as a test cell；
Step 102, suitable position arranges a distributed data acquisition host in each test cell；
Step 103, selection is no less than 3 test points in each test cell, fixes probe, probe and this unit
Data collection host passes through transmission cable unicom；
Step 104, interconnect each test cell data collection host in machinery by transmission cable, then passes through cable
Unicom condition calculating machine；
Step 105, by drivers' cab test cell data collection host pass through cable unicom condition calculating machine；
Step 106, by air test cell data collection host outside car pass through cable unicom condition calculating machine；
Step 107, all test points at the same time, constantly monitor, and condition calculating machine shows the pressure of current each several part, temperature
Etc. information, and calculate between machinery between drivers' cab pressure difference, machinery with atm difference outside car.
A kind of test method of micro-positive pressure of machinery chamber of locomotive provided by the invention, can test locomotive in static and dynamic operation condition
Under machinery between micro-positive pressure situation, by using distributed data acquisition host intercommunication mode, test process is divided into unit,
Some test points gathered data at the same time is broken up by unit again, so that test process is more reasonable, there is test equipment arrangement
Rationally, the features such as method is easy, and test data is comprehensive, accurate, reliable.
Further, in above-mentioned embodiment illustrated in fig. 1, measurement condition includes two states：When locomotive is static and moves,
In-vehicle device is normally-open, does not allow to leak between machinery；
Further, in above-mentioned embodiment illustrated in fig. 1, the position selection of the portable data acquisition host of step 102
It should be taken into account that the distance of each test point is moderate.
Further, in above-mentioned embodiment illustrated in fig. 1, test point should have away from porch decks between the machinery of step 103
3 points of 1.5m eminences, drivers' cab test point should have away from 3 points at the high 1.5m in floor, and the outer air test point of car should have locomotive machinery
Between exhaust outlet nearby air pressure steadily place 2 points；
Further, in above-mentioned embodiment illustrated in fig. 1, step 107 can specifically include：
Wind turbine full range is run, and compressor is opened, recording data information, reads differential pressure；
Wind turbine full range is run, and compressor is closed, recording data information, reads differential pressure；
Half frequency of wind turbine is run, and compressor is opened, recording data information, reads differential pressure；
Half frequency of wind turbine is run, and compressor is closed, recording data information, reads differential pressure.
As shown in Fig. 2, Fig. 2 shows a kind of test side of micro-positive pressure of machinery chamber of locomotive provided by one embodiment of the present invention
Method system layout,
The system includes sensor 21, distributed data acquisition host 22, transmission cable 23, bus 24 and condition calculating machine
25；The sensor 21 is connected by transmission cable 23 with 22 circuit of distributed data acquisition host；
The sensor 21 is arranged on the test position of region, for monitoring the pressure of the position in real time；
The distributed data acquisition host 22 is connected by bus 24 with 25 circuit of condition calculating machine；For that will count in real time
Data processing is carried out according to condition calculating machine 25 is transferred to；
Further, above-mentioned condition calculating machine 25 further includes：Data processing software 26, the software will transmit specified number evidence
Post processing calculating is carried out, shows result information.
Finally it should be noted that：The above embodiments are merely illustrative of the technical solutions of the present invention, rather than its limitations；Although
The present invention is described in detail with reference to the foregoing embodiments, it will be understood by those of ordinary skill in the art that：It still may be used
To modify to the technical solution described in foregoing embodiments, or equivalent substitution is carried out to which part technical characteristic；
And these modification or replace, do not make appropriate technical solution essence depart from various embodiments of the present invention technical solution spirit and
Scope.
Claims (5)
1. a kind of test method of micro-positive pressure of machinery chamber of locomotive, it is characterised in that this method specifically comprises the following steps：
Step 101, according to equipment deployment scenarios between locomotive machinery, several regions will be divided between machinery, regional space size is tried one's best
Average, each region is set as a test cell；Likewise, drivers' cab is set as a test cell, by air outside car
It is set as a test cell；
Step 102, suitable position arranges a distributed data acquisition host in each test cell；
Step 103, selection is no less than 3 test points in each test cell, fixes the data of probe, probe and this unit
Collection host passes through transmission cable unicom；
Step 104, interconnect each test cell data collection host in machinery by transmission cable, then passes through cable unicom
Condition calculating machine；
Step 105, by drivers' cab test cell data collection host pass through cable unicom condition calculating machine；
Step 106, by air test cell data collection host outside car pass through cable unicom condition calculating machine；
Step 107, all test points at the same time, constantly monitor, and condition calculating machine shows that the pressure of current each several part, temperature etc. are believed
Breath, and calculate between machinery between drivers' cab pressure difference, machinery with atm difference outside car.
2. the test method of a kind of micro-positive pressure of machinery chamber of locomotive according to claim 1, it is characterised in that described each
Test cell sets a portable data acquisition host, wherein this portable data collection host is based on microprocessor skill
Art, designed using integrated circuit and Low Voltage Technique, is made of probe, transmission cable and host, is integrated with a variety of existing sensors
With transmitter (including multiple pressure, temperature).
3. the test method of a kind of micro-positive pressure of machinery chamber of locomotive according to claim 1, it is characterised in that described each
In test cell, choose some test points (test point quantity must not be less than 3).Probe is fixed in the test point chosen,
Some test points in this unit at the same time, are constantly monitored by probe, monitoring result is transmitted to this list by transmission cable
Data collection host in member.
4. the test method of a kind of micro-positive pressure of machinery chamber of locomotive according to claim 1, it is characterised in that between the machinery
Interior each test cell data collection host is interconnected by transmission cable, is sent to finally by cable on condition calculating machine, meter
The information such as pressure, temperature between calculation machine display Current mechanical.
5. the test method of a kind of micro-positive pressure of machinery chamber of locomotive according to claim 1, it is characterised in that by the driver
Room and the outer air of car respectively see a test cell as, are monitored, send monitoring data to condition calculating machine, condition calculating
Machine calculate between machinery between drivers' cab pressure difference, machinery with atm difference outside car.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
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| CN201610933849.3A CN108007635B (en) | 2016-10-31 | 2016-10-31 | Method for testing micro-positive pressure between locomotive machines |
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| CN201610933849.3A CN108007635B (en) | 2016-10-31 | 2016-10-31 | Method for testing micro-positive pressure between locomotive machines |
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| CN108007635A true CN108007635A (en) | 2018-05-08 |
| CN108007635B CN108007635B (en) | 2020-08-14 |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111918422A (en) * | 2019-07-12 | 2020-11-10 | 中车大同电力机车有限公司 | Locomotive front window heating method, device and system, storage medium and electronic equipment |
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| CN2760536Y (en) * | 2004-11-30 | 2006-02-22 | 中国南车集团株洲电力机车厂 | Device for testing locomotive cab safe pressure |
| CN1963522A (en) * | 2006-11-03 | 2007-05-16 | 深圳职业技术学院 | A multiple-passage testing system for gas parameter |
| CN101441138A (en) * | 2009-01-07 | 2009-05-27 | 中南大学 | Test method and system of train pneumatic performance simulation test apparatus |
| CN202024855U (en) * | 2011-04-08 | 2011-11-02 | 武汉理工大学 | Portable detecting equipment for pressure gauge on locomotive |
| CN202485851U (en) * | 2012-04-04 | 2012-10-10 | 栗志 | Intelligent detector for brake pressure of railway vehicle |
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| CN111918422A (en) * | 2019-07-12 | 2020-11-10 | 中车大同电力机车有限公司 | Locomotive front window heating method, device and system, storage medium and electronic equipment |
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