CN205003173U - Anemoscope differential pressure transducing unit on -line measuring device - Google Patents
Anemoscope differential pressure transducing unit on -line measuring device Download PDFInfo
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- CN205003173U CN205003173U CN201520623316.6U CN201520623316U CN205003173U CN 205003173 U CN205003173 U CN 205003173U CN 201520623316 U CN201520623316 U CN 201520623316U CN 205003173 U CN205003173 U CN 205003173U
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Abstract
The utility model relates to an anemoscope differential pressure transducing unit on -line measuring device, the system that this method adopted includes the differential pressure transducing unit, and the PA bus connection ware is connected to PA bus connection ware, RS232 -USB data cable, communication adapter and calibration system, differential pressure transducing unit, and the PA bus connection ware passes through RS232 -USB data cable and connects the communication adapter, communication adapter connection calibration system, the front end of differential pressure transducing unit press the stop valve and connect the differential pressure sensing unit through drawing, draw to press and set up high pressure isolating valve, low pressure stop valve and the balanced valve that switches on on the stop valve. Anemoscope differential pressure transducing unit on -line measuring device realized anemoscope differential pressure transducing unit on -line measuring function, very big improvement to the controllability of anemoscope operation process, addd effectual detection method.
Description
Technical field
The utility model relates to a kind of on-line measuring device, is a kind of differential pressure transporting unit on-line measuring device specifically, particularly a kind of anemoscope differential pressure transporting unit on-line measuring device.
Background technology
Along with the technological transformation of a tobacco business new round, the baking silk technique in fiber tow production workshop adds the anemoscope measuring unit that cut-tobacco drier barrel temperature matches with hot blast temperature and hot blast wind speed, measuring unit adopts integral structure, by the differential pressure signal that mechanical pick-up device measurement obtains, differential pressure transporting cell processing is connected to by pressure guiding pipe, and by PA bus transfer to PLC control system, according to current detection method and system, the measuring method of main employing off-line and corresponding measuring system.
Industry and enterprise measurement technology personnel are to the cycle calibration of this kind of instrument and safeguard very puzzled, the process control requirements of this anemoscope cannot be met, the control completely under anemoscope core cell presence cannot be realized, and can only the overall performance error accuracy of anemoscope be evaluated, owing to there is no supporting on-line measuring device and the support of system, the optimum configurations of differential pressure transporting unit, zero-bit adjustment cannot be realized and demarcate.Set up the configuration that the method effectively can realize anemoscope differential pressure transporting unit, demarcate and checking, there is great practical value.
Summary of the invention
The technical problems to be solved in the utility model is: provide a kind of anemoscope differential pressure transporting unit on-line measuring device, the zero-bit adjustment under anemoscope dynamical state can not only be realized and demarcate, and can also arrange anemoscope differential pressure transporting cell parameters, data show in real time, and failure message is pointed out.
For solving above technical matters, the utility model by the following technical solutions:
A kind of anemoscope differential pressure transporting unit on-line measuring device, the system that the method adopts comprises differential pressure transporting unit, PA Bussing connector, RS232-USB data cable, communication adapter and calibration system, differential pressure transporting unit connects PA Bussing connector, PA Bussing connector connects communication adapter by RS232-USB data cable, communication adapter connects calibration system, the front end of described differential pressure transporting unit connects differential pressure sensing unit by impulse stop valve, impulse stop valve is arranged high-pressure stop valve, low-pressure shutoff valve and balance conducting valve.
Anemoscope differential pressure transporting unit on-line measuring device described in the utility model, it carries out the operation steps of zero-bit adjustment and demarcation mainly through the differential pressure transporting unit under or static state dynamically online to anemoscope, realizes differential pressure transporting unit on-line checkingi.Carry out demarcate and operating process in data pass through detection system, the PA Bussing connector that the differential pressure signal of measurement is connected by RS232-USB data line is transferred to calibration system through communication adapter by anemoscope differential pressure transporting unit, system carries out optimum configurations, zero-bit adjusts, demarcate, the operations such as fault cues, realize the unit on-line proving of anemoscope differential pressure transporting and data display.Achieve anemoscope differential pressure transporting unit on-line checkingi function, greatly improve the control ability to anemoscope operational process, add effective detection method.
Accompanying drawing explanation
Fig. 1 is anemoscope differential pressure transporting unit on-line measuring device hardware block diagram described in the utility model.
Fig. 2 is anemoscope differential pressure transporting unit on-line measuring device software tree structure described in the utility model.
Embodiment
Below in conjunction with accompanying drawing, embodiment of the present utility model is made a detailed explanation.
A kind of anemoscope differential pressure transporting unit on-line measuring device as shown in Figure 1, this device comprises differential pressure transporting unit 3, PA Bussing connector 4, RS232-USB data cable 5, communication adapter 6 and calibration system 7, differential pressure transporting unit 3 connects PA Bussing connector 4, PA Bussing connector 4 connects communication adapter 6 by RS232-USB data cable 5, communication adapter 6 connects calibration system 7, the front end of described differential pressure transporting unit 3 connects differential pressure sensing unit 1 by impulse stop valve 2, impulse stop valve 2 arranges high-pressure stop valve, low-pressure shutoff valve and balance conducting valve.By the differential pressure value that anemoscope differential pressure transporting unit 3 is measured, pressure signal is transferred to calibration system 7 by PA Bussing connector 4 through communication adapter 6, calibration system 7 carries out optimum configurations, zero-bit adjusts, demarcate, fault cues operates, and realizes the unit on-line proving of anemoscope differential pressure transporting and data display.Described differential pressure sensing unit 1, for the on-line checkingi of anemoscope provides differential pressure signal.Impulse stop valve 2, is carrying out zero-bit adjustment, in pressure equilibrium and calibration process, carries out the adjustment of source of the gas and protects differential pressure sensing unit 1.Differential pressure transporting unit 3 and PA Bussing connector 4, the pressure signal measured by differential pressure sensing unit 1 carries out data processing, and for data transmission interface is provided.RS232-USB data line 5, provides the cable trails that data are transmitted.Communication adapter 6, provides data receiver for differential pressure signal data and transfers to the interface of calibration system 7.Calibration system 7, provides the information such as the display of the optimum configurations of system, data and fault cues.
Software section as shown in Figure 2, demarcate with adjustment mainly by anemoscope online dynamically or static under differential pressure transporting unit 3 module carries out zero-bit adjustment, the individual step of Zero positioning and pressure calibration operates, zero-bit adjustment refers to carries out zero-bit adjustment to anemoscope, zero-bit mark refers to and carries out zero adjustment to anemoscope, and pressure calibration refers to and carries out pressure calibration to anemoscope.Data display mainly realizes the real-time Presentation Function of nominal data and measurement data in detection method process.System is by optimum configurations, and the functions such as fault cues, realize correct configuration and the prompting of process tracking information of differential pressure transporting unit 3.
Particularly, the described adjustment of the zero-bit to differential pressure transporting unit 3 is the correction of the zero migration online dynamically or under static state.
Particularly, described zero-bit adjustment comprises in airduct having hot blast or the situation without hot blast, can realize on-line tuning.
Before the adjustment of described zero-bit, need high-pressure stop valve and the low-pressure shutoff valve of closing differential pressure transporting unit 3, open balance conducting valve, just can operate above-mentioned steps.
Before carrying out zero-bit adjustment, guarantee that differential pressure transporting unit 3 is connected with PA Bussing connector, and connected in communication adapter, communication adapter is connected with calibration system.
Before carrying out zero-bit adjustment, first calibration system reads pressure signal and the parameter information of current differential pressure transporting unit 3, confirm errorless after, just can carry out offset correction operation.
Pressure signal is that differential pressure transporting unit 3 exports particularly, according to data figure place showing, can determine decimal digits and pressure unit.
Parameter signal is the value at current zero point of differential pressure transporting unit 3 particularly.
When zero-bit has adjusted, the value at zero point after adjustment is stored in differential pressure transporting unit 3 by calibration system, and by value display at this zero point in the result, while current anemoscope zero value to be presented in system screen also in real time.
Preferably, in order to realize the on-line checkingi of anemoscope differential pressure transporting unit 3, need to carry out Zero positioning to anemoscope further.
Particularly, described Zero positioning comprises in airduct having hot blast or the situation without hot blast, can realize on-line proving.
Before described Zero positioning, need high-pressure stop valve and the low-pressure shutoff valve of closing differential pressure transporting unit 3, open balance conducting valve, just can operate above-mentioned steps.
Before carrying out Zero positioning, first calibration system can read pressure signal and parameter information, confirm errorless after, just can carry out proving operation.
When carrying out Zero positioning, zero value is inputted in zero-bit parameter, confirm errorless after, demarcate.
Preferably, in order to realize the accurate of Zero positioning, need 2 ~ 3 Zero positioning operations.
When Zero positioning completes, value at calibrated zero point is stored in differential pressure transporting unit 3 by calibration system, and by value display at this zero point in the result, is presented in system screen simultaneously also in real time.
Described pressure equalization, in order to realize zero-bit adjustment and demarcate, prevents the overproof fault of differential pressure transporting unit 3.
Particularly, pressure equalization needs switch impulse stop valve, and after high pressure and low-pressure shutoff valve must be closed simultaneously, balance conducting valve just can be opened.
Preferably, by observing the current displayed value of differential pressure transporting unit 3, evaluating the pressure balance of high pressure and low pressure end, whether meeting the requirements.
Particularly, first will balance conducting valve after pressure equalization completes and close, secondly could open high pressure and low-pressure shutoff valve simultaneously.
Preferably, by observing the current displayed value evaluation of differential pressure transporting unit 3, if measuring system is in running status, differential pressure transporting unit 3 display measurement result, if measuring system is in halted state, differential pressure transporting unit 3 should be shown as zero.
Preferably, in order to realize the on-line checkingi of anemoscope differential pressure transporting unit 3, need to carry out pressure calibration to anemoscope further.
Before described pressure calibration, need the range ability confirming differential pressure transporting unit 3, make differential pressure transporting unit 3 in measurement range.
Particularly, can pre-set the calibrated span of differential pressure transporting unit 3 when needing, meet field working conditions and technological requirement.
Particularly, after range has pre-seted, pre-set if calibrated span exceeds, system will point out fault alarm.
Described pressure calibration, needs high pressure and low-pressure shutoff valve to close simultaneously, and pressure guiding pipe is departed from former measuring system.
Preferably, any one end of impulse stop valve can be connected to pressure calibration system, and open impulse stop valve.
Particularly, when high-pressure stop valve is connected to pressure calibration system, calibration system exports normal pressure, and differential pressure transporting unit 3 shows positive pressure value, and when calibration system exports negative pressure, differential pressure transporting unit 3 shows negative pressure force value.
Particularly, when low-pressure shutoff valve is connected to pressure calibration system, calibration system exports normal pressure, and differential pressure transporting unit 3 shows negative pressure force value, and when calibration system exports negative pressure, differential pressure transporting unit 3 shows positive pressure value.
Preferably, high-pressure stop valve can be connected to pressure calibration system, and export full scale normal pressure, wait for that differential pressure transporting unit 3 is stablized in corresponding force value.Simultaneously in calibration system, input full-scale pressure value, and determine.
Preferably, after pressure full scale has been demarcated, can carry out 5 equal portions to this range ability, carry out pressure detection respectively to this 5 equal portions point, by the measurement of upper and lower stroke, checking differential pressure transporting unit 3 has been demarcated accurately.
After described pressure calibration completes, need impulse stop valve to take back measuring system, and impulse stop valve is opened.
Claims (1)
1. anemoscope differential pressure transporting unit (3) on-line measuring device, it is characterized in that: this device comprises differential pressure transporting unit (3), PA Bussing connector (4), RS232-USB data cable (5), communication adapter (6) and calibration system (7), differential pressure transporting unit (3) connects PA Bussing connector (4), PA Bussing connector (4) connects communication adapter (6) by RS232-USB data cable (5), communication adapter (6) connects calibration system (7), the front end of described differential pressure transporting unit (3) connects differential pressure sensing unit (1) by impulse stop valve (2), (2) arrange high-pressure stop valve with impulse stop valve, low-pressure shutoff valve and balance conducting valve.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520623316.6U CN205003173U (en) | 2015-08-18 | 2015-08-18 | Anemoscope differential pressure transducing unit on -line measuring device |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520623316.6U CN205003173U (en) | 2015-08-18 | 2015-08-18 | Anemoscope differential pressure transducing unit on -line measuring device |
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| CN205003173U true CN205003173U (en) | 2016-01-27 |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106568987A (en) * | 2016-11-09 | 2017-04-19 | 华南农业大学 | Zero point adjustable dynamic pressure type wind speed measuring device |
| CN109655179A (en) * | 2018-12-06 | 2019-04-19 | 东南大学 | Three-dimensional force sensor measuring circuit and method with temperature-compensating and optical fiber output |
-
2015
- 2015-08-18 CN CN201520623316.6U patent/CN205003173U/en active Active
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106568987A (en) * | 2016-11-09 | 2017-04-19 | 华南农业大学 | Zero point adjustable dynamic pressure type wind speed measuring device |
| CN106568987B (en) * | 2016-11-09 | 2019-03-08 | 华南农业大学 | A kind of adjustable dynamic pressure type wind speed measuring device of zero point |
| CN109655179A (en) * | 2018-12-06 | 2019-04-19 | 东南大学 | Three-dimensional force sensor measuring circuit and method with temperature-compensating and optical fiber output |
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