CN101871847A - Subway air compressor automatic detection platform system and method - Google Patents

Subway air compressor automatic detection platform system and method Download PDF

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Publication number
CN101871847A
CN101871847A CN 201010185713 CN201010185713A CN101871847A CN 101871847 A CN101871847 A CN 101871847A CN 201010185713 CN201010185713 CN 201010185713 CN 201010185713 A CN201010185713 A CN 201010185713A CN 101871847 A CN101871847 A CN 101871847A
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pressure
air compressor
air
compressor machine
ball valve
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CN 201010185713
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CN101871847B (en
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姜良银
李明
殷建
徐常恺
陈孝光
黄文鑫
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University of Shanghai for Science and Technology
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University of Shanghai for Science and Technology
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Abstract

The invention relates to subway air compressor automatic detection platform system and method. An air source of the detection platform is provided by an air compressor to be detected, and pressure at the low pressure end of the air compressor is directly acquired by a pressure sensor. Main pipelines at the high pressure end sequentially comprise a manual ball valve, a flow sensor, an electronic pressure controller, a check valve, an air filter regulator and lubricator (FRL), an air capacitor, an exhaust electromagnetic valve, a pressure switch ball valve and a silencer. A safety relief valve is installed in front of the main pipelines before the air capacitor is installed. An air capacitor drain valve is installed at the bottom of the air capacitor. The platform can realize the automatic switching of two kinds of working conditions of pollution draining and pressurization for the air compressor according to the detection standards of the air compressor for the subway, realize the function of performance detection under the two kinds of working conditions, automatically save detection data and form a report form, and provide maintenance suggestion according to detection results.

Description

Subway air compressor automatic detection platform system and method
Technical field
A kind of subway air compressor automatic detection platform system and method have been the present invention relates to.
Background technology
Subway air compressor is mainly as compressed-air actuated propulsion system.Working well of air compressor machine is the condition precedent that other pneumatic elements work well on the subway, thereby indirect relation is to operational efficiency, the brake situation of subway.Therefore the regular detection maintenance of air compressor machine is an important component part of subway Equipment Inspection maintenance.In addition, the examination after air compressor machine cleans detects the detection platform that need use air compressor machine equally.Existing subway air compressor machine test platform mainly relies on manually-operated, its performance parameter to read the machinery instrument hand-kept by the staff, and efficient is very low, occurs sometimes manually misreading, the situation of skip parameter takes place.Along with subway construction is metropolitan universal at each, this detection mode obviously falls behind.
Summary of the invention
The objective of the invention is deficiency at existing detection platform, a kind of automatic detection platform system and method for subway air compressor is proposed, this system detects automatically according to the standard detection flow process of the air compressor machine performance parameter to air compressor machine, and can analyze automatically the parameter that detects, guiding work personnel keep in repair.Test report can preserve automatically, reads, retrieves, print simultaneously.
Design of the present invention is: the employing solenoid valve replaces the hand valve in the former air compressor machine gas circuit, realizes the automatic switchover of gas circuit; Two kinds of working pressures of air compressor machine are switched the electronic pressure regulation ball valve of employing, regulate two kinds of working condition pressures of air compressor machine by the openings of sizes of control ball valve; Adopt electronics pressure controller and high-pressure side superpressure emergency stop circuit to guarantee the security of equipment in the automatic testing process of air compressor machine.
The operating process that detects mainly comprises: before the test air compressor machine is carried out the dry running of short time so that the endotracheal impurity of air compressor machine is got rid of; Start to gather the back test platform by regulate electronic pressure regulation ball valve with air compressor machine high-pressure side pressure control at 8bar ± 0.1bar, carry out that the air compressor machine serviceability detects under operating mode half an hour first; After half an hour, switch the openings of sizes that the air compressor machine trace routine is regulated electronic pressure regulation ball valve, air compressor machine high-pressure side pressure control at 10bar ± 0.1bar, is carried out air compressor machine serviceability detection under operating mode half an hour second; After the detection end of two kinds of operating modes, the data that collect are shown that point out the whether qualified of staff's performance of air compressor parameter and provide the maintenance suggestion, data are deposited so that inquire about later on, print automatically on the backstage.The last test software detection to second operating mode detect finished after, control switching circuit is opened exhaust solenoid valve and is carried out exhaust decompression, treat that pipeline reduces to about 0bar after, the prompting staff can carry out the dismounting of air compressor machine.More than be once complete subway air compressor robotization testing process.
According to the foregoing invention design, the present invention adopts following technical scheme:
A kind of subway air compressor automatic detection platform system is characterized in that the gas circuit difference correspondence of test platform connects the high and low pressure pressure interface of air compressor machine, provides source of the gas by the air compressor machine of being tested; The low pressure gas circuit directly connects low-pressure sensor and carries out pressure acquisition.High pressure master gas circuit is through a manual ball valve, flow sensor, electronics pressure controller, non-return valve, source of the gas processing three linked piece successively have been installed in series on pipeline, be connected in parallel to three air-capacitors after the three linked piece, gas circuit is divided into two-way afterwards, wherein one the tunnel exhaust solenoid valve is installed, other one the tunnel installs a pressure switches ball valve, and the two-way gas circuit is connected in parallel at last, and an exhaust box is installed; In addition, on flow sensor, install a flow displaying instrument additional, have the blowdown scupper hose, a manual ball valve is installed on the flexible pipe in the bottom of each air-capacitor.
A Hall current sensor is installed on the feed circuit of the air compressor machine of being tested; High-pressure end on the gas circuit that connects before air-capacitor merges is equipped with a pressure transducer; The rotating shaft observation case place of air compressor machine is equipped with an infrared speed probe; Five place's temperature-measuring ports at air compressor machine are separately installed with a temperature sensor; The data of various sensors all reach industrial computer through the collection of analog input card.
A kind of subway air compressor automatic testing method adopts said system to detect, and it is characterized in that can realizing following function in test process:
When 1. detecting beginning, judge the pressure of current pressure duct according to the numerical value of high-pressure side pressure transducer, with the first working condition pressure value is that 8bar ± 0.1bar is a target, openings of sizes and opening speed by capture card output control signal controlled pressure switching ball valve realize that the pressure duct pressure stability is in first operating mode;
2. after detecting 30 minutes under first operating mode, similar to the adjusting of first working condition pressure, be that 10bar ± 0.1bar is a target with the second working condition pressure value, regulate openings of sizes and opening speed that pressure switches ball valve, realize that the pressure duct pressure stability is in second operating mode.
3. after second operating mode detected and finishes, the trace routine controlled pressure switches the ball valve opening to be opened to maximum, transmits control signal simultaneously and opens exhaust solenoid valve, carries out the pressure release of pressure duct; When the high-pressure sensor went out pressure and is near the 0bar, prompting air compressor machine testing process finished.
Principle of work of the present invention is as follows:
Air compressor machine detects main parameter evaluation and mainly comprises: play the assessment of wind time, play duty assessment, the assessment of motor torque capacity, motor speed assessment, motor consumption assessment, relative efficiency assessments such as air quantity assessment, the temperature of leaking assessment, system's running experiment, pressure.These assessments are calculated by a data on flows, two pressure datas, the electric current of 6 temperature, motor speed and feed circuit, voltage datas.Therefore, the designed test pneumatic diagram of the present invention as shown in Figure 1, air compressor machine low pressure end pressure is directly obtained by pressure transducer; For high-pressure side, owing in testing process, require the working condition pressure of control high-pressure side and realize that two kinds of pressure between operating mode switch, therefore behind the total ball valve of the high-pressure side of air compressor machine, connect flow sensor, obtain the data on flows of air compressor machine.The effect of electronics pressure controller is a air pressure in detecting pipeline during greater than 11bar, and built-in pressure-control relay switch disconnects, and the feed circuit of air compressor machine are cut off, and plays the effect of protection equipment.Source of the gas is handled three linked piece and is comprised air strainer, reduction valve and oil sprayer, is used for separating the moisture content of air compressor machine output pressurized air, and the air that assurance enters gas bag is a dry air.The effect of air-capacitor not only is can storing compressed air, and can reduce because the pressure fluctuation of the discontinuous generation of compressor air-discharging, realizes air feed and with the balance of gas.The air-capacitor blowoff valve is positioned at the bottom of air-capacitor, and the interior dirt of air-capacitor was discharged after convenience will be used a period of time.The effect of exhaust solenoid valve is to open automatically to lose heart after the air compressor machine detection is finished, and carries out the next round detection so that change air compressor machine.The effect that pressure switches ball valve is the switching of carrying out two kinds of working condition pressures in the air compressor machine testing process, and pressure switches the ball valve external control circuit, and its opening and opening and closing speed are subjected to be controlled by analog input card.The data of all the sensors are uploaded to industrial computer by each road analog input card AI passage collection respectively, and the control signal of solenoid valve is exported by industrial computer programmed control analog input card DO mouth.
The present invention has following conspicuous outstanding substantive distinguishing features and remarkable advantage compared with prior art:
(1) pneumatic element all adopts circuit control, has realized the robotization in the whole air compressor machine testing process.
(2) realization of two of air compressor machine kinds of working condition pressures is automaticallyed switch, and its pressure is regulated and adopted electrical ball valve control, working condition pressure can be guaranteed at 8bar ± 0.1bar and 10bar ± 0.1bar.
(3) employing electronics pressure controller and air compressor machine high-pressure side superpressure emergency stop circuit have guaranteed equipment and the personal security in the air compressor machine testing process;
(4) can analyze automatically the test structure of air compressor machine, provide staff's repair prompt.And can automatic report generation and storage, inquiry to the performance parameter of the air compressor machine that records.
Description of drawings
Fig. 1 is an air compressor machine detection system gas circuit synoptic diagram of the present invention.
Fig. 2 is an air compressor machine detection system process flow diagram of the present invention.
Fig. 3 is an air compressor machine detection system software kit operation interface of the present invention.
Embodiment
The preferred embodiments of the present invention accompanying drawings is as follows:
Embodiment one: referring to Fig. 1, this subway air compressor automatic detection platform system is characterized in that the gas circuit difference correspondence of test platform connects the high and low pressure pressure interface of air compressor machine 2, provides source of the gas by the air compressor machine of being tested 2; The low pressure gas circuit directly connects low-pressure sensor and carries out pressure acquisition; High pressure master gas circuit is through a manual ball valve 3, flow sensor 5, electronics pressure controller 6, non-return valve 7, source of the gas processing three linked piece 8 successively have been installed in series on pipeline, be connected in parallel to three air-capacitors 11 after the three linked piece, gas circuit is divided into two-way afterwards, wherein one the tunnel exhaust solenoid valve 13 is installed, other one the tunnel installs a pressure switches ball valve 14, and the two-way gas circuit is connected in parallel at last, and an exhaust box 15 is installed; In addition, on flow sensor 5, install a flow displaying instrument 4 additional, have the blowdown scupper hose, a manual ball valve 12 is installed on the flexible pipe in the bottom of each air-capacitor.
Embodiment two: present embodiment and embodiment one are basic identical, and special feature is: a Hall current sensor is installed on the feed circuit of the air compressor machine of being tested 2; High-pressure end on the gas circuit before air-capacitor merges is equipped with a high-pressure sensor 9; The rotating shaft observation case place of air compressor machine 2 is equipped with an infrared speed probe; Five place's temperature-measuring ports at air compressor machine 2 are separately installed with a temperature sensor; The data of various sensors all reach industrial computer through the collection of analog input card.
Embodiment three: referring to Fig. 2 and Fig. 3, this subway air compressor machine automatic testing method adopts said system to detect, and the detecting operation step is as follows:
When 1. detecting beginning, judge the pressure of current pressure duct according to the numerical value of high-pressure side pressure transducer, with the first working condition pressure value is that 8bar ± 0.1bar is a target, openings of sizes and opening speed by capture card output control signal controlled pressure switching ball valve 14 realize that the pressure duct pressure stability is in first operating mode;
2. after detecting 30 minutes under first operating mode, similar to the adjusting of first working condition pressure, be that 10bar ± 0.1bar is a target with the second working condition pressure value, regulate openings of sizes and opening speed that pressure switches ball valve 14, realize that the pressure duct pressure stability is in second operating mode.
3. after second operating mode detected and finishes, the trace routine controlled pressure switches ball valve opening 14 to be opened to maximum, transmits control signal simultaneously and opens exhaust solenoid valve 13, carries out the pressure release of pressure duct; When high-pressure sensor 9 detects pressure when being near the 0bar, prompting air compressor machine testing process finishes.
Embodiment four: present embodiment and embodiment three are basic identical, and details are as follows: at first with bolt the air compressor machine that will test is fixed on test platform, with the be tightly connected high-low pressure air intake opening of this air compressor machine detection platform of adapter.Open the switch of electric cabinet then and power, the supporting acquisition software in the operation industrial computer.The acquisition software interface as shown in Figure 3.
Click " start and gather " button, carry out data acquisition.System is the sealing condition of checkout pipeline at first, when system sealing is good, automatically working condition pressure is adjusted to 8bar, carries out the data acquisition of first operating mode.Line pressure constantly descends when pressurize, and the line seal existing problems are described, software carries out sealing reports to the police, and should check that the high-low pressure air intake opening of air compressor machine testing table connects situation this moment.After entering first operating mode, numerical tabular that passes through and alarm lamp can judge whether test result is correct.If incorrect, can click " stopping " button and stop to gather, perhaps click " time-out " button and suspend collection.If all are normal for air compressor machine, after gatherer process carried out 30 minutes, system was adjusted to 10bar with working condition pressure automatically, entered the data acquisition of second operating mode.Each amount of second working condition acquiring is identical with first operating mode.After second operating mode was carried out 30 minutes, whole air compressor machine test process had just been finished.At this time whether the operator can come the checkout result correct by image data viewing area and temperature map viewing area.If correct, automatic report generation, test result is kept under the root directory of function software automatically, and provides corresponding maintenance suggestion automatically according to test result.If incorrect, can not preserve, test again after treating correctly to connect air compressor machine testing table hardware device again.

Claims (3)

1. a subway air compressor automatic detection platform system is characterized in that the gas circuit difference correspondence of test platform connects the high and low pressure pressure interface of air compressor machine (2), provides source of the gas by the air compressor machine of being tested (2); The low pressure gas circuit directly connects low-pressure sensor (1) and carries out pressure acquisition; High pressure master gas circuit is through a manual ball valve (3), flow sensor (5), electronics pressure controller (6), non-return valve (7), source of the gas processing three linked piece (8) successively have been installed in series on pipeline, be connected in parallel to three air-capacitors (11) after the three linked piece, gas circuit is divided into two-way afterwards, wherein one the tunnel exhaust solenoid valve (13) is installed, other one the tunnel installs a pressure switches ball valve (14), and the two-way gas circuit is connected in parallel at last, and an exhaust box (15) is installed; In addition, on flow sensor (5), install a flow displaying instrument (4) additional, have the blowdown scupper hose, a manual ball valve (12) is installed on the flexible pipe in the bottom of each air-capacitor.
2. subway air compressor automatic detection platform system according to claim 1 is characterized in that on the feed circuit of the air compressor machine (2) tested a Hall current sensor being installed; High-pressure end on the gas circuit before air-capacitor merges is equipped with a high-pressure sensor (9); The rotating shaft observation case place of air compressor machine (2) is equipped with an infrared speed probe; Five place's temperature-measuring ports at air compressor machine (2) are separately installed with a temperature sensor; The data of various sensors all reach industrial computer through the collection of analog input card.
3. a subway air compressor automatic testing method adopts subway air compressor automatic detection platform system according to claim 1 to detect, and it is characterized in that the operation steps that detects is as follows:
When 1. detecting beginning, judge the pressure of current pressure duct according to the numerical value of high-pressure side pressure transducer, with the first working condition pressure value is that 8bar ± 0.1bar is a target, by the openings of sizes and the opening speed of capture card output control signal controlled pressure switching ball valve (14), realize that the pressure duct pressure stability is in first operating mode;
2. after detecting 30 minutes under first operating mode, regulate similar to first working condition pressure, with the second working condition pressure value is that 10bar ± 0.1bar is a target, regulates openings of sizes and opening speed that pressure switches ball valve (14), realizes that the pressure duct pressure stability is in second operating mode.
3. after second operating mode detected and finishes, the trace routine controlled pressure switches ball valve opening (14) to be opened to maximum, transmits control signal simultaneously and opens exhaust solenoid valve (13), carries out the pressure release of pressure duct; When high-pressure sensor (9) detects pressure when being near the 0bar, prompting air compressor machine testing process finishes.
CN2010101857131A 2010-05-26 2010-05-26 Subway air compressor automatic detection platform system and method Expired - Fee Related CN101871847B (en)

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Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN110422158A (en) * 2019-06-06 2019-11-08 克诺尔车辆设备(苏州)有限公司 A kind of vehicle wind-supply unit detection module, wind-supply unit and detection method
CN112665664A (en) * 2020-12-31 2021-04-16 好米动力设备有限公司 Gas flow detection system

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4584876A (en) * 1985-02-15 1986-04-29 Allied, Inc. Air compressor test apparatus
CN200965491Y (en) * 2006-07-10 2007-10-24 东南大学 Refrigeration air conditioning multi-function test platform
CN101344462A (en) * 2008-08-19 2009-01-14 任崇桂 Integrated experimental bench for multifunctional air compressor performance test
CN201335767Y (en) * 2008-12-31 2009-10-28 滁州悦达实业有限公司 Test bench system of turbocharger

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4584876A (en) * 1985-02-15 1986-04-29 Allied, Inc. Air compressor test apparatus
CN200965491Y (en) * 2006-07-10 2007-10-24 东南大学 Refrigeration air conditioning multi-function test platform
CN101344462A (en) * 2008-08-19 2009-01-14 任崇桂 Integrated experimental bench for multifunctional air compressor performance test
CN201335767Y (en) * 2008-12-31 2009-10-28 滁州悦达实业有限公司 Test bench system of turbocharger

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN110422158A (en) * 2019-06-06 2019-11-08 克诺尔车辆设备(苏州)有限公司 A kind of vehicle wind-supply unit detection module, wind-supply unit and detection method
CN112665664A (en) * 2020-12-31 2021-04-16 好米动力设备有限公司 Gas flow detection system

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