CN204630879U - By-pass valve stroke pressure hysteresis detects data acquisition system (DAS) - Google Patents
By-pass valve stroke pressure hysteresis detects data acquisition system (DAS) Download PDFInfo
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- CN204630879U CN204630879U CN201520237586.3U CN201520237586U CN204630879U CN 204630879 U CN204630879 U CN 204630879U CN 201520237586 U CN201520237586 U CN 201520237586U CN 204630879 U CN204630879 U CN 204630879U
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- Prior art keywords
- pass valve
- ratio adjusting
- data acquisition
- adjusting valve
- valve
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Abstract
The utility model discloses a kind of by-pass valve stroke pressure hysteresis and detect data acquisition system (DAS), comprise PLC, Modbus analog output module, ratio adjusting valve, pressure transducer, displacement transducer, Modbus Analog input mModule, relay, testing result pilot lamp and 24V Switching Power Supply; PLC connects ratio adjusting valve by Modbus analog output module, by Modbus Analog input mModule Bonding pressure sensor and displacement transducer, and connects testing result pilot lamp by relay; Ratio adjusting valve, pressure transducer, displacement transducer are corresponding with by-pass valve to be checked to be installed; 24V Switching Power Supply connects ratio adjusting valve and relay is its power supply.The utility model achieves the data acquisition of by-pass valve lag performance, not only provide final testing result, and have recorded the real time data of each test point, can strong data target be provided for coming into operation of by-pass valve, and problem source can be reviewed.
Description
Technical field
The utility model relates to a kind of by-pass valve stroke pressure hysteresis and detects data acquisition system (DAS), belongs to technical field of automation in industry.
Background technology
By-pass valve is as the vitals of diesel motor turbocharger, the requirement of its technical indicator is comparatively harsh, especially to the stroke pressure hysteresis of its finished product, there is higher susceptibility, by-pass valve must could be come into operation in the scope of specifying, otherwise serious consequence may be caused.Detection at present for by-pass valve stroke pressure lagging characteristics energy mainly adopts manual detection, and detection efficiency and precision all cannot meet the demands.
Utility model content
The utility model is for above-mentioned actual conditions, a kind of by-pass valve stroke pressure hysteresis is provided to detect data acquisition system (DAS), the stroke pressure hysteresis of by-pass valve can not only be reflected in real time, but also by providing test result and whether qualified with normal data point-by-point comparison, can effectively solve the lag performance test problems of finished product by-pass valve.
The technical solution of the utility model is as follows:
A kind of by-pass valve stroke pressure hysteresis detects data acquisition system (DAS), comprises PLC, Modbus analog output module, ratio adjusting valve, pressure transducer, displacement transducer, Modbus Analog input mModule, relay, testing result pilot lamp and 24V Switching Power Supply; Described PLC is the core of data acquisition system (DAS), and it connects ratio adjusting valve by Modbus analog output module, by Modbus Analog input mModule Bonding pressure sensor and displacement transducer, and connects testing result pilot lamp by relay; Described ratio adjusting valve, pressure transducer, displacement transducer are corresponding with by-pass valve to be checked to be installed; Described 24V Switching Power Supply connects described ratio adjusting valve and relay, is its power supply.
Advantageous Effects of the present utility model is:
The utility model achieves the data acquisition of by-pass valve lag performance, not only provides final testing result, and have recorded the real time data of each test point, Problems existing is provided to the foundation of searching.
In the application process of reality, can by-pass valve stroke pressure lag performance detect and provide strong data target for coming into operation of by-pass valve, and can review problem source.
Advantage of the present utility model provides in the description of embodiment part below, and part will become obvious from the following description, or be recognized by practice of the present utility model.
Accompanying drawing explanation
Fig. 1 is that by-pass valve stroke pressure hysteresis detects data acquisition system (DAS) structural drawing.
Fig. 2 is that by-pass valve stroke pressure hysteresis detects data acquisition system (DAS) circuit module figure.
Embodiment
Below in conjunction with accompanying drawing, embodiment of the present utility model is described further.
As depicted in figs. 1 and 2, PLC 1 is the core of the utility model data acquisition system (DAS), it connects multiple ratio adjusting valve 3 by multichannel Modbus analog output module 2, connect multiple pressure transducer 4 and multiple displacement transducer 5 by multichannel Modbus Analog input mModule 6, and connect testing result pilot lamp 8 by relay 7.Each ratio adjusting valve 3, pressure transducer 4, displacement transducer 5 are corresponding with each by-pass valve to be checked to be installed.24V Switching Power Supply 9 connects ratio adjusting valve 3 and relay 7, is its power supply.
In by-pass valve prepackage production run, detection is needed to be added to the air pressure on by-pass valve and the spring deformation in valve.In the utility model, pressure process is that passing ratio variable valve 3 (abbreviation proportioning valve) completes automatically.In the process of carrying out data acquisition, the signal receiving sensor by PLC 1, comprises two class signals: pressure and displacement.Pressure signal is gathered by pressure transducer 4, and displacement signal is gathered by displacement transducer 5.The utility model needs to detect 10 by-pass valve simultaneously, therefore needs 20 analog quantity channels.Ratio adjusting valve 3 needs to be controlled by analog output amount.
In the process of the utility model data acquisition, need to carry out twice test respectively to 10 test points of each by-pass valve, i.e. positive pressurisation test and reverse decompression test, its standard value is set by operating personnel and can store.Error between displacement stroke corresponding in positive pressurization process and reverse decompression process and displacement stroke does not all allow the value that is above standard, and above-mentioned three conditions must meet simultaneously just can assert that by-pass valve lag performance is qualified.
Realize data acquisition system (DAS) of the present utility model, need the Analog input mModule 6 supporting Modbus agreement, receive the signal of multichannel pressure transducer 4 and displacement transducer 5 thus, need an analog output module 2 supporting Modbus agreement in addition, be used for control ratio variable valve 3, realize the pressurized control of by-pass valve.
During the utility model startup optimization, regulated the aperture of ratio adjusting valve 3 by Modbus analog output module 2 output current signal by PLC 1, because ratio adjusting valve 3 belongs to linear regulation, forward and reverse pressure change that can realize 10 spot pressures regulates, when pressure arrives this 10 spot pressures, the displacement signal of case of by-pass valve is sent to Modbus Analog input mModule 6 by displacement transducer 5, finally to be read by Modbus agreement by PLC 1 and processes.Need the parameter of setting to be held by HMI operate and utilize built-in storage unit storage data, support that power down keeps simultaneously.
Principle of work of the present utility model is as follows:
Each by-pass valve to be checked is fixed, PLC 1 is by Modbus analog output module 2 control ratio variable valve 3 aperture, the air pressure be carried on by-pass valve increases thereupon, the deformation thereupon of spring now in by-pass valve, its stroke is sent to PLC 1 by displacement transducer 5 through Modbus Analog input mModule 6, and the air pressure be carried on by-pass valve is also sent to PLC 1 by pressure transducer 4 through Modbus Analog input mModule 6.In the process that pressure increases, have 10 test points, when pressure transducer 4 detects that force value arrives each test point, the stroke now displacement transducer 5 detected and standard value compare to determine whether within given acceptability limit; After in by-pass valve, real-time pressure exceedes maximal value, PLC 1 control ratio variable valve 3 starts decompression, tests 10 test points in pressurization just now equally, after being completed, its stroke and standard value is contrasted to determine whether within given acceptability limit; Meanwhile, the difference of the stroke of these 10 test points in decompression process and pressurization and standard value are contrasted determine it whether within scope.If above three technical parameters are all within given range, then illustrate that by-pass valve stroke pressure performance parameter is qualified, as long as there is a parameter not meet the demands, then defective.This result is shown by testing result pilot lamp 8 by relay 7 by PLC 1, if qualified, green indicating lamp is bright, otherwise then red led is bright.
In sum, the utility model can realize automatic multiple spot and detect by-pass valve stroke pressure hysteresis detection data, proportion of utilization variable valve, pressure transducer, displacement transducer, programmable logic controller (PLC) PLC, achieve the data acquisition of by-pass valve stroke pressure, the stroke pressure lagging characteristics for by-pass valve can detect in real time thus judge finished product qualification.
Above-described is only preferred implementation of the present utility model, and the utility model is not limited to above embodiment.Be appreciated that the oher improvements and changes that those skilled in the art directly derive or associate under the prerequisite not departing from basic conception of the present utility model, all should think and be included within protection domain of the present utility model.
Claims (1)
1. a by-pass valve stroke pressure hysteresis detects data acquisition system (DAS), it is characterized in that, comprise PLC (1), Modbus analog output module (2), ratio adjusting valve (3), pressure transducer (4), displacement transducer (5), Modbus Analog input mModule (6), relay (7), testing result pilot lamp (8) and 24V Switching Power Supply (9); The core that described PLC (1) is data acquisition system (DAS), it connects ratio adjusting valve (3) by Modbus analog output module (2), by Modbus Analog input mModule (6) Bonding pressure sensor (4) and displacement transducer (5), and connect testing result pilot lamp (8) by relay (7); Described ratio adjusting valve (3), pressure transducer (4), displacement transducer (5) is corresponding with by-pass valve to be checked installs; Described 24V Switching Power Supply (9) connects described ratio adjusting valve (3) and relay (7), is its power supply.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520237586.3U CN204630879U (en) | 2015-04-17 | 2015-04-17 | By-pass valve stroke pressure hysteresis detects data acquisition system (DAS) |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520237586.3U CN204630879U (en) | 2015-04-17 | 2015-04-17 | By-pass valve stroke pressure hysteresis detects data acquisition system (DAS) |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204630879U true CN204630879U (en) | 2015-09-09 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201520237586.3U Expired - Fee Related CN204630879U (en) | 2015-04-17 | 2015-04-17 | By-pass valve stroke pressure hysteresis detects data acquisition system (DAS) |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN204630879U (en) |
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2015
- 2015-04-17 CN CN201520237586.3U patent/CN204630879U/en not_active Expired - Fee Related
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20150909 Termination date: 20200417 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |