CN204154435U - A kind of pressure automatic checkout system for homogenizer - Google Patents
A kind of pressure automatic checkout system for homogenizer Download PDFInfo
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- CN204154435U CN204154435U CN201420677661.3U CN201420677661U CN204154435U CN 204154435 U CN204154435 U CN 204154435U CN 201420677661 U CN201420677661 U CN 201420677661U CN 204154435 U CN204154435 U CN 204154435U
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Abstract
The utility model discloses a kind of pressure automatic checkout system for homogenizer, this system comprises pressure transducer, for according to product pressure in homogenizer, exports corresponding current signal; Signal isolator, the current signal for signal gathering unit being exported is divided into first via simulating signal and the second road analog signal output; Analog to digital converter, carries out analog to digital conversion by the first via simulating signal that signal isolated location exports, and obtains pressure on the number signal; And signal processing unit, for processing pressure on the number signal, obtain the measured value of homogenizer product pressure.Product pressure situation in homogenizer is directly reacted to central control room by technical scheme described in the utility model, Central Control Room operating personnel are enable to monitor force value in homogenizer production run in real time, and force value does not use text prompt Central Control Room operating personnel in setting range, be convenient to observe, stop the product quality accident generation that homogenizer pressure surge causes.
Description
Technical field
The utility model relates to pressure detecting system, particularly relates to a kind of pressure automatic checkout system for homogenizer.
Background technology
Pretreatment section in dairy manufacturing processes, make homogenizer be smashed fat globule in cow's milk by high pressure, the fat avoiding dairy products is floating.Whether the homogenizer pressure detection used at present, cannot be realized at the homogenizer pressure controlling computer to be observed in production run by central authorities control room operator inspection in range of set value.The dairy process line that automaticity is high and central control room all can have a segment distance, and the operating personnel of central control room are not easy to inspection homogenizer pressure, if central control room operating personnel inspection there will be quality of lot accident not in time.
Therefore, need to provide a kind of system that automatically can detect product pressure in homogenizer, to replace manual patrol, that avoids manual patrol to bring can not process product pressure accident in homogenizer in time.
Utility model content
The technical problems to be solved in the utility model is to provide a kind of pressure automatic checkout system for homogenizer, cannot the deficiency of testing product pressure automatically to overcome existing homogenizer.
For solving the problems of the technologies described above, the utility model adopts following technical proposals
For a pressure automatic checkout system for homogenizer, this system comprises
Pressure transducer, for responding to product pressure in homogenizer, output current signal;
Signal isolator, the current signal for signal gathering unit being exported is divided into first via signal and the second road signal to export;
Analog to digital converter, carries out analog to digital conversion by the first via signal that signal isolated location exports, and obtains digital signal; With
Signal processing unit, for processing pressure on the number signal, obtains the measured value of homogenizer product pressure.
Preferably, the range of described pressure transducer is 0-400bar.
Preferably, described signal isolator adopts JAB-1212 type signal isolator.
Preferably, described analog to digital converter employing Input Address is Siemens's analog to digital converter of PIW302.
Preferably, described signal processing unit comprises further
Storage module, for the minimum and maximum range of storage sensors;
Measured value computing module, based on digital signal and the minimum and maximum range carrying out sensor, obtains the pressure measuring value of system.
Preferably, described signal processing unit comprises further
Threshold value comparison module, for comparing pressure measuring value and the threshold value preset;
Alarm module, the comparative result based on threshold value comparison module is reported to the police.
Preferably, this system also comprises site pressure display device, for based on the second tunnel simulating signal, shows product pressure value in current homogenizer.
Preferably, described site pressure display device is digital pressure gauge.
The beneficial effects of the utility model are as follows:
Product pressure situation in homogenizer is directly reacted to central control room by technical scheme described in the utility model, Central Control Room operating personnel are enable to monitor force value in homogenizer production run in real time, and force value does not use text prompt Central Control Room operating personnel in setting range, be convenient to observe, stop the product quality accident generation that homogenizer pressure surge causes.
Accompanying drawing explanation
Below in conjunction with accompanying drawing, embodiment of the present utility model is described in further detail;
Fig. 1 illustrates the schematic diagram of a kind of pressure automatic checkout system for homogenizer described in the utility model embodiment.
Embodiment
The utility model discloses a kind of pressure automatic checkout system for homogenizer, this system comprises pressure transducer, signal isolator, analog to digital converter, site pressure display device and signal processing unit.
This system utilizes pressure transducer to respond to product pressure in homogenizer in real time, output current signal, by signal isolator, current signal is divided into first via signal and the second road signal, first via signal is after analog to digital converter conversion, obtain digital signal, second road signal demonstrates the force value of product in on-the-spot homogenizer through site pressure display device, signal processing unit is utilized to calculate the pressure of product in the homogenizer of this systematic survey, the pressure measuring value of acquisition system, signal processing unit also comprises threshold value comparison module and alarm module, this system utilizes threshold value comparison module to compare pressure measuring value and the threshold value preset, alarm module is reported to the police based on the comparative result of threshold value comparison module.
Below in conjunction with one group of embodiment and accompanying drawing, the utility model is described further.
As shown in Figure 1, a JBA-1212 type signal isolator is set between homogenizer and the signal input part of site pressure display word table, the corresponding current signal of product pressure in the homogenizer collected by pressure transducer is input in signal isolator, by signal isolator, this current signal is divided into two-way, one tunnel is input in site pressure display word table, another road is input in the analog-to-digital conversion module in homogenizer control power distribution cabinet, signal after analog to digital conversion is based on PROFIBUS agreement, after utilizing PLC process, be shown on the computer of central control room, and the not red text display on computer in setting range of pressure displayed value, the operating personnel of prompting center-control indoor.
The terminal 15 of signal isolator, the 16 operating voltage input ends being, input voltage is 24V, the signal of the 20mA of terminal 3 output of signal isolator is connected to the positive terminal of homogenizer pressure transducer, the negative signal of pressure transducer is being connected on signal isolator terminal 2, when the force value of pressure transducer is 400bar, the current value that the negative pole end of pressure transducer exports is 20mA, when the force value of pressure transducer is 0bar, the current value that the negative pole end of pressure transducer exports is 4mA, the current signal of the corresponding 4-20mA of the pressure of 0-400bar by that analogy, the current signal of the 4-20mA that signal isolator terminal 2 detects is divided into what do not disturb mutually to be two-way analog signal output, second tunnel simulating signal utilizes (+9 of signal isolator,-10) end exports to field digital pressure display table, first via simulating signal utilizes (+11 of signal isolator,-12) end exports to Siemens's analog to digital converter that Input Address is PIW302, the operation values current signal of 4-20mA being converted to 0-27648 through analog to digital conversion carries out the calculating of product pressure measured value in homogenizer by the PLC of on-the-spot PROFIBUS agreement conveying, PLC is shown to operation result on the INTOUCH interface of Central Control Room computer.
Measured value computing formula:
Measured value: the homogenizer pressure displayed value that computer interface shows.
Engineering value: the current signal of the negative pole that pressure transducer exports is converted to the value of 0-27648.
Maximal value: the maximum range of pressure transducer is 400bar.
Minimum value: the minimum range of pressure transducer is 0bar.
In sum, product pressure situation in homogenizer is directly reacted to central control room by this programme, Central Control Room operating personnel are enable to monitor force value in homogenizer production run in real time, and force value does not use text prompt Central Control Room operating personnel in setting range, be convenient to observe, stop the product quality accident generation that homogenizer pressure surge causes.
Obviously; above-described embodiment of the present utility model is only for the utility model example is clearly described; and be not the restriction to embodiment of the present utility model; for those of ordinary skill in the field; can also make other changes in different forms on the basis of the above description; here cannot give exhaustive to all embodiments, every belong to the technical solution of the utility model the apparent change of extending out or variation be still in the row of protection domain of the present utility model.
Claims (8)
1. for a pressure automatic checkout system for homogenizer, it is characterized in that, this system comprises
Pressure transducer, for responding to product pressure in homogenizer, output current signal;
Signal isolator, the current signal for signal gathering unit being exported is divided into first via signal and the second road signal to export;
Analog to digital converter, carries out analog to digital conversion by the first via signal that signal isolated location exports, and obtains digital signal; With
Signal processing unit, for processing pressure on the number signal, obtains the measured value of homogenizer product pressure.
2. a kind of pressure automatic checkout system for homogenizer according to claim 1, is characterized in that, the range of described pressure transducer is 0-400bar.
3. a kind of pressure automatic checkout system for homogenizer according to claim 1, is characterized in that, described signal isolator adopts JAB-1212 type signal isolator.
4. a kind of pressure automatic checkout system for homogenizer according to claim 1, is characterized in that, described analog to digital converter employing Input Address is Siemens's analog to digital converter of PIW302.
5. a kind of pressure automatic checkout system for homogenizer according to claim 1, it is characterized in that, described signal processing unit comprises further
Storage module, for the minimum and maximum range of storage sensors;
Measured value computing module, based on digital signal and the minimum and maximum range carrying out sensor, obtains the pressure measuring value of system.
6. a kind of pressure automatic checkout system for homogenizer according to claim 1, it is characterized in that, described signal processing unit comprises further
Threshold value comparison module, for comparing pressure measuring value and the threshold value preset;
Alarm module, the comparative result based on threshold value comparison module is reported to the police.
7. a kind of pressure automatic checkout system for homogenizer according to claim 1, it is characterized in that, this system also comprises site pressure display device, for based on the second tunnel simulating signal, shows product pressure value in current homogenizer.
8. a kind of pressure automatic checkout system for homogenizer according to claim 7, described site pressure display device is digital pressure gauge.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420677661.3U CN204154435U (en) | 2014-11-13 | 2014-11-13 | A kind of pressure automatic checkout system for homogenizer |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420677661.3U CN204154435U (en) | 2014-11-13 | 2014-11-13 | A kind of pressure automatic checkout system for homogenizer |
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| Publication Number | Publication Date |
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| CN204154435U true CN204154435U (en) | 2015-02-11 |
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| CN201420677661.3U Active CN204154435U (en) | 2014-11-13 | 2014-11-13 | A kind of pressure automatic checkout system for homogenizer |
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- 2014-11-13 CN CN201420677661.3U patent/CN204154435U/en active Active
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