CN202057466U - Device for detecting airtightness of high speed train - Google Patents
Device for detecting airtightness of high speed train Download PDFInfo
- Publication number
- CN202057466U CN202057466U CN2011201189830U CN201120118983U CN202057466U CN 202057466 U CN202057466 U CN 202057466U CN 2011201189830 U CN2011201189830 U CN 2011201189830U CN 201120118983 U CN201120118983 U CN 201120118983U CN 202057466 U CN202057466 U CN 202057466U
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- flexible pipe
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Abstract
The utility model relates to a device for detecting airtightness of a high speed train. The device comprises a measurement and control case and an industrial control computer, and is characterized in that a gas storage tank is arranged in a lower layer of the measurement and control case, one side of the gas storage tank is provided with a compressed air inlet, a compressed air outlet is successively connected with a pressure-reducing valve, a solenoid valve and a metal flexible pipe; the metal flexible pipe is connected with a detected compartment via a metal flexible pipe interface arranged on a sealing plate of the detected compartment; a pressure transducer and a PLC controller are arranged in an upper layer of the measurement and control case, an input end of the pressure transducer is connected with a plastic flexible pipe, the plastic flexible pipe is connected with the detected compartment via a plastic flexible pipe interface arranged on the sealing plate of the detected compartment; an output end of the pressure sensor is connected with the PLC controller via a lead, an output end of the PLC controller is respectively connected with the solenoid valve and the industrial control computer; and the measurement and control case and the industrial control computer are arranged on a pedestal of a small handcart. The device is compact in structure, convenient for moving, and precise in detection results.
Description
Technical field
The utility model relates to a kind of air-tightness detection device of bullet train, belongs to technical field of measurement and test.
Background technology
The present domestic high-speed railway of greatly developing, the travel speed of train is brought up to 380km/h rapidly by original 100km/h, and the distance in city is shortened greatly.Along with the raising of train running speed, the aerodynamics problem in the train operation more and more causes people's attention.Wherein, the impermeability of train is one of gordian technique of development bullet train.Whole tightness is meant at train and finishes the state of reorganizing and outfit (after promptly lavatory, water system, vehicle window and car door or the like being installed) and close train and extraneous all perforates (comprising the perforate by door and air-conditioning equipment) that communicate, the sealing property that the relative car external pressure of interior pressure changes.Influence bubble-tight factor, except the structure and technology of end door, side door, vehicle window, also various cables, the pipeline that welds on situation, car end syndeton, the floor with steel structure of car body is relevant by the concrete structure of hole and osculum, sewage treatment plant and compound ventilation air-changing device.
For bullet train (speed is greater than 200km/h), during when the intersection of train high speed or at a high speed by the tunnel, especially in the tunnel during intersection, rapid variation all can take place and form air pressure wave in the flow velocity of surrounding air and pressure.Pressure wave impacts passenger's ear-drum by the car body slit into the car, causes passenger's tinnitus, otalgia, makes the people be difficult to stand, and when serious, door and window is damaged.But the impermeability in bullet train compartment is fully by the manual testing at present, also there is not a kind of air tightness test device that is used to detect bullet train, therefore the air tightness test for the bullet train compartment lacks accuracy, and the testing apparatus of using during test is many, and has defective such as mobile inconvenience.In case tested carriage airtightness problem is not finding promptly and accurately not, the energy of being not only of being not only the speed of a motor vehicle, waste of influence when serious the more important thing is that may to cause car body and human body impaired.
The utility model content
The utility model discloses a kind of air-tightness detection device of bullet train, its objective is the detection system that easy to operate, the good stability of a cover, measuring accuracy height, conveniently moving are provided.This system adopts the PLC controller, by program whole test process is realized control automatically, can synchro control solenoid valve shuts gas circuit when compartment pressure reaches setting value, stop to inflate to the compartment, and make the pressure release of compartment nature, the PLC controller is by connecting the change value of pressure in the collection of pressure transducer high-speed real-time, analysis, the record compartment simultaneously, and generate corresponding pressure history, the last experimental data form that generates automatically can overcome drawbacks such as the test result precision that causes by manually-operated in the prior art is low, mobile inconvenience like this.
A kind of air-tightness detection device of bullet train comprises: observing and controlling case and industrial computer are characterized in:
D) the built-in gas-holder of observing and controlling case lower floor, gas-holder one side is provided with the compressed air inlet, and the gas-holder compressed air outlet is connected with reduction valve, solenoid valve, metal hose successively through pipeline; Metal hose is connected with tested compartment by the metal hose interface on the tested compartment seal pad;
E) observing and controlling case upper strata setting pressure sensor, PLC controller, the input end of pressure transducer connects plastic flexible pipe, and plastic flexible pipe is connected with tested compartment by the plastic flexible pipe interface on the tested compartment seal pad; The output terminal of pressure transducer is connected with the PLC controller by lead, and the output terminal of PLC controller is connected with solenoid valve, industrial computer respectively.
F) described industrial computer is arranged on observing and controlling case outside;
Described observing and controlling case places on the small handcart base.
The reduction valve hand switch is set on the described reduction valve.
Also be provided with blowdown valve on the seal pad in described tested compartment.
Cardinal principle of the present utility model is by filling compression gas to tested interior, and pressure boost also reaches after a certain setting value, closes the solenoid valve shuts gas circuit by PLC controller synchro control, makes the compartment keep the nature pressure release.Simultaneously change value of pressure in the compartment is gathered, analyzes, write down to the PLC controller in real time by connecting pressure transducer, and generate corresponding pressure history and be presented on the industrial computer screen the last test experiments data sheet that generates automatically.
The utility model can be realized control, not only compact conformation automatically to whole test process by program owing to adopted the PLC controller, be convenient to move, easy to use, and also testing result is accurate, effectively improve the quality in bullet train compartment, ensured the high speed and the safety traffic of train.
Description of drawings
Fig. 1 is the one-piece construction synoptic diagram of the utility model bullet train air-tightness detection device.
1, solenoid valve, 2, reduction valve, 3, the small handcart base, 4, gas-holder, 5, the observing and controlling case, 6, compressed air inlet port, 7, industrial computer, 8, the PLC controller, 9, pressure transducer, 10, plastic flexible pipe, 11, the plastic flexible pipe interface, 12, blowdown valve, 13, metal hose interface, 14, metal hose, 15, the reduction valve hand switch, 16, observing and controlling case top cover, 17, seal pad.
Embodiment
Below in conjunction with drawings and Examples the utility model is described in further details.
A kind of air-tightness detection device of bullet train comprises observing and controlling case 5 and industrial computer 7 as shown in Figure 1, and observing and controlling case 5 and industrial computer 7 place on the small handcart base 3.
The built-in gas-holder 4 of observing and controlling case 5 lower floors, gas-holder one side is provided with compressed air inlet 6, and the gas-holder compressed air outlet is connected with reduction valve 2, solenoid valve 1, metal hose 14 successively through pipeline; Metal hose 14 is connected with tested compartment by the metal hose interface 13 on the tested compartment seal pad 17;
Observing and controlling case 5 upper strata setting pressure sensor 9 and PLC controllers 8, observing and controlling case top cover 16 can be opened at any time; The input end of pressure transducer 9 connects plastic flexible pipe 10, and plastic flexible pipe is connected with tested compartment by the plastic flexible pipe interface 11 on the tested compartment seal pad 17; The output terminal of pressure transducer 9 is connected with PLC controller 8 by lead, and the output terminal of PLC controller is connected with solenoid valve 1, industrial computer 7 respectively.Industrial computer 7 is arranged on the outside of observing and controlling case 5; Reduction valve hand switch 15 is set on the reduction valve 2.Also be provided with blowdown valve 12 on the seal pad 17 in tested compartment.
The source of the gas of gas-holder 4 adopts pressurized air, and pressurized air enters gas-holder by compressed air inlet port 6; The effect of blowdown valve 12 is: prevent the excessive destruction of causing car body of compartment pressurized, when the car body internal pressure increased to the upper pressure limit value, the blowdown valve of device can be opened automatically, reaches the effect in automatic protection compartment.
During use: the compressed air inlet port 6 of source of the gas and gas-holder is connected, the solenoid valve 1 of opening gas-holder 4 by the manually-operated industrial computer makes pressurized air be adjusted to mild again being pressed in the airtight tested compartment by the metal hose interface 13 on the seal pad 17 through metal hose 14 after the suitable force value by reduction valve hand switch 15, when pressure transducer 9 detects pressure in the compartment and is raised to a certain setting value, 8 controls of PLC controller are closed solenoid valve 1 and are cut off gas circuit, make the compartment keep nature pressure release state.This proving installation test job pressure reaches as high as 5000Pa, by pressure unit compartment internal pressure delta data is carried out the high-speed real-time collection at pressure release stage PLC controller, on industrial computer 7, demonstrate pressure history figure then, can calculate the pressure change rate of unit interval and the changing value of certain section time internal pressure in addition, finally generate the form of experimental data form.
Claims (4)
1. the air-tightness detection device of a bullet train, comprising: observing and controlling case and industrial computer is characterized in that:
A) the built-in gas-holder of observing and controlling case lower floor, gas-holder one side is provided with the compressed air inlet, and the gas-holder compressed air outlet is connected with reduction valve, solenoid valve, metal hose successively through pipeline; Metal hose is connected with tested compartment by the metal hose interface on the tested compartment seal pad;
B) observing and controlling case upper strata setting pressure sensor, PLC controller, the input end of pressure transducer connects plastic flexible pipe, and plastic flexible pipe is connected with tested compartment by the plastic flexible pipe interface on the tested compartment seal pad; The output terminal of pressure transducer is connected with the PLC controller by lead, and the output terminal of PLC controller is connected with solenoid valve, industrial computer respectively.
C) described industrial computer is arranged on observing and controlling case outside;
2. the air-tightness detection device of bullet train according to claim 1, it is characterized in that: described observing and controlling case places on the small handcart base.
3. the air-tightness detection device of bullet train according to claim 1 is characterized in that: the reduction valve hand switch is set on the described reduction valve.
4. the air-tightness detection device of bullet train according to claim 1 is characterized in that: also be provided with blowdown valve on the seal pad in described tested compartment.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011201189830U CN202057466U (en) | 2011-04-21 | 2011-04-21 | Device for detecting airtightness of high speed train |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011201189830U CN202057466U (en) | 2011-04-21 | 2011-04-21 | Device for detecting airtightness of high speed train |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202057466U true CN202057466U (en) | 2011-11-30 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2011201189830U Expired - Fee Related CN202057466U (en) | 2011-04-21 | 2011-04-21 | Device for detecting airtightness of high speed train |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202057466U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102243130A (en) * | 2011-04-21 | 2011-11-16 | 上海理工大学 | Gas tightness detection device of high speed train |
| CN104848999A (en) * | 2015-04-29 | 2015-08-19 | 凯迈（洛阳）气源有限公司 | Air tightness detection device |
| CN105890909A (en) * | 2016-04-29 | 2016-08-24 | 重庆长安汽车股份有限公司 | Device and method for testing dynamic sound tightness of closure member of whole vehicle |
-
2011
- 2011-04-21 CN CN2011201189830U patent/CN202057466U/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102243130A (en) * | 2011-04-21 | 2011-11-16 | 上海理工大学 | Gas tightness detection device of high speed train |
| CN104848999A (en) * | 2015-04-29 | 2015-08-19 | 凯迈（洛阳）气源有限公司 | Air tightness detection device |
| CN105890909A (en) * | 2016-04-29 | 2016-08-24 | 重庆长安汽车股份有限公司 | Device and method for testing dynamic sound tightness of closure member of whole vehicle |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20111130 Termination date: 20120421 |