CN207822808U - Digitize ultrafiltration system - Google Patents
Digitize ultrafiltration system Download PDFInfo
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- CN207822808U CN207822808U CN201721922397.5U CN201721922397U CN207822808U CN 207822808 U CN207822808 U CN 207822808U CN 201721922397 U CN201721922397 U CN 201721922397U CN 207822808 U CN207822808 U CN 207822808U
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- 238000000108 ultra-filtration Methods 0.000 title claims abstract description 67
- 239000012466 permeate Substances 0.000 claims abstract description 51
- 239000012528 membrane Substances 0.000 claims abstract description 28
- 230000009471 action Effects 0.000 claims abstract description 5
- 239000007788 liquid Substances 0.000 claims description 16
- 238000007689 inspection Methods 0.000 claims description 8
- 230000003993 interaction Effects 0.000 claims description 6
- CDBYLPFSWZWCQE-UHFFFAOYSA-L Sodium Carbonate Chemical compound [Na+].[Na+].[O-]C([O-])=O CDBYLPFSWZWCQE-UHFFFAOYSA-L 0.000 claims description 3
- 239000002253 acid Substances 0.000 claims description 3
- 238000004891 communication Methods 0.000 claims description 3
- 238000013500 data storage Methods 0.000 claims description 3
- 238000010992 reflux Methods 0.000 claims description 3
- 238000000034 method Methods 0.000 abstract description 5
- 238000001514 detection method Methods 0.000 description 12
- 230000007613 environmental effect Effects 0.000 description 9
- 238000004364 calculation method Methods 0.000 description 3
- 238000005516 engineering process Methods 0.000 description 3
- 230000008439 repair process Effects 0.000 description 3
- 230000000153 supplemental effect Effects 0.000 description 3
- 238000010586 diagram Methods 0.000 description 2
- 230000002706 hydrostatic effect Effects 0.000 description 2
- 230000008569 process Effects 0.000 description 2
- 238000000926 separation method Methods 0.000 description 2
- 241000894006 Bacteria Species 0.000 description 1
- 238000013475 authorization Methods 0.000 description 1
- 230000005540 biological transmission Effects 0.000 description 1
- 239000000084 colloidal system Substances 0.000 description 1
- 238000013461 design Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 230000005611 electricity Effects 0.000 description 1
- 238000001914 filtration Methods 0.000 description 1
- 238000007726 management method Methods 0.000 description 1
- 238000002156 mixing Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 239000005416 organic matter Substances 0.000 description 1
- 239000002245 particle Substances 0.000 description 1
- 229920000642 polymer Polymers 0.000 description 1
- 238000000746 purification Methods 0.000 description 1
- 230000035945 sensitivity Effects 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
- 208000024891 symptom Diseases 0.000 description 1
- 230000001360 synchronised effect Effects 0.000 description 1
- 238000012360 testing method Methods 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 1
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- Separation Using Semi-Permeable Membranes (AREA)
Abstract
The utility model discloses digitlization ultrafiltration systems, it is related to hyperfiltration technique field, including flow pipe, at least one ultrafiltration membrane packet for being connected on flow pipe and being arranged in parallel, an and control subsystem, control subsystem includes the digital sensor being set on flow pipe, input pressure sensor and pressure sensor output, further includes executive item and a control terminal；Digitlization ultrafiltration system disclosed by the utility model, control terminal control flow control valve modulation make transmembrane pressure meet transmembrane pressure achievement data；Digital sensor is detected the index real time data of permeate, and feeds back to control terminal；Control terminal compares the target goals data that index real time data is stored with it, judges whether to match, and controls each executive item action and improve the accuracy of ultrafiltration until the index real time data of permeate exports target permeate after meeting target goals data.
Description
Technical field
The utility model is related to hyperfiltration technique field more particularly to a kind of digitlization ultrafiltration systems.
Background technology
Ultrafiltration be one kind to sieve as separation principle, using pressure as the membrane separating process of motive force, filtering accuracy exists
In 0.005-0.002 μ ms, particle, colloid, bacterium, heat source and the polymer organic matter in water can be effectively removed, it can be wide
General separation, concentration, purification applied to substance.
Authorization Notice No. is that the Chinese utility model patent of CN203648395U discloses automatic ultrafiltration system, including diaphragm
Pump.Ultrafiltration membrane packet and PLC controller, ultrafiltration membrane packet have inlet, liquid outlet and liquid return hole, the outlet end of diaphragm pump and ultrafiltration
It is connected with first pressure sensor between film packet elder sister's inlet, second pressure sensor is connected at the liquid return hole of ultrafiltration membrane packet,
Second pressure sensor connects shutoff valve, and the liquid outlet of ultrafiltration membrane packet is connect with third pressure sensor, first pressure sensor,
Second pressure sensor, third pressure sensor and shutoff valve are connect with PLC controller respectively.What the utility model patent disclosed
Three pressure sensors that technical solution can be connected according to ultrafiltration membrane packet adjust shut off valve opening and pump discharge, to adjust
Transmembrane pressure is saved, obtains most rational ultra-filtration conditions, it can be achieved that continuous ultrafiltration process, improves ultrafiltration efficiency.
But can not accurately judge whether permeate is needed target permeate only by control transmembrane pressure, surpass
Filter precision is unable to control.
Utility model content
The utility model provides a kind of digitlization ultrafiltration system, can improve the degree of regulation of transmembrane pressure, improve super
Filter precision.
The utility model provides a kind of digitlization ultrafiltration system, including：
For inputting the stream that simultaneously output-index real time data meets the target permeate of target goals data demand for sample liquid
Siphunculus road is connected on the flow pipe and at least one ultrafiltration membrane packet being arranged in parallel and a control subsystem；
The control subsystem includes：
It is set to multigroup digital sensor of the index real time data on the flow pipe for detecting permeate；
It is set to the input for detecting ultrafiltration membrane packet input terminal and output end hydraulic pressure respectively on the flow pipe
Pressure sensor and pressure sensor output；
It is set on the flow pipe, the executive item for controlling each node circulation status of the flow pipe；And
It connect with each digital sensor, input pressure sensor and pressure sensor output, and is held described in control
Row part acts, to export the control terminal for the target permeate for meeting target goals data demand；
Wherein, the target goals data are corresponding with the index real time data, include conductivity data and ring
Border supplemental characteristic.
Above-mentioned technical proposal is detected the index real time data of permeate by using digital sensor, will remove electricity
Remaining environmental parameter value except leading is transmitted to control terminal together, and chooses corresponding conductivity number by comparing each environmental parameter
According to being judged.It avoids conductivity data from being influenced by other environmental parameters such as temperature and generates variation, lead to the detection of detection
Deviation is generated between value and actual value to the instruction to make mistake, improves ultrafiltration precision.
In some embodiments, the ambient parameter data includes temperature data, volume flow rate data, mass velocity number
According to one or more combinations in, soda acid degrees of data.
Above-mentioned technical proposal may influence one or more rings of conductivity data by using digital sensor acquisition
Border supplemental characteristic, and under each ambient parameter data of control terminal edit and storage corresponding conductivity data target goals data,
Making the conductivity data detected under difficult environmental conditions has corresponding target goals data to be compared, and eliminates environmental parameter
Influence to conductivity data improves the accuracy of judgement.
In some embodiments, the flow pipe includes：
It is connected to the ultrafiltration membrane packet input terminal, the intake line for inputting the sample liquid；
It is connected to the ultrafiltration membrane packet output end, the output pipe for exporting the permeate；
It is connected to the return duct that the output pipe is back to intake line with the intake line, for nonstandard permeate
Road.
In above-mentioned technical proposal by using return line make nonstandard permeate be back to intake line again with sample liquid
Mixing carries out ultrafiltration, improves utilization rate, reduces cost.
In some embodiments, the return line is equipped with return pressure sensor and the digitized sensor
Device.
By using above-mentioned technical proposal, by the way that digital sensor is arranged on return line, it enters return line
Nonstandard permeate is detected again, confirms its content, improves the control rate to solution in flow pipe, to improve control
End sends out the accuracy of instruction；In addition, being equipped with the hydraulic pressure pressure in return pressure sensor detection return line on return line
Power, to feed back to control terminal, the hydraulic pressure in hydraulic pressure and intake line that control terminal detects flow pressure sensor
In conjunction with plot mean, to obtain the final hydraulic pressure of ultrafiltration membrane packet input terminal, to improve the accuracy for judging transmembrane pressure.
In some embodiments, the executive item includes：
The input valve of the diaphragm pump and the control intake line break-make that are set on the intake line；
It is set to the automatic valve of each ultrafiltration membrane packet both sides；
It is set on the output pipe, controls the output valve of the target permeate output；And
The return valve and flow control valve being set on the return line.
In above-mentioned technical proposal, by the way that flow control valve is arranged in reflux management, to facilitate liquid in control flow pipe
The flow of body then controls the hydraulic pressure in flow pipe.
In some embodiments, the control terminal includes that an at least personal computer and at least one are calculated using storehouse
Method carries out the programmable logic controller (PLC) of data storage；
The programmable logic controller (PLC) is equipped with for storing conductivity data and at least one in the target goals data
The data of target association relationship and the corresponding transmembrane pressure achievement data of each target permeate between the kind ambient parameter data
Library；
Executive item described in the PLC controls acts；
The personal computer and programmable logic controller (PLC) communication, realize that data synchronize.
In above-mentioned technical proposal, programmable logic controller (PLC) uses stack algorithm into line number since amount of storage is smaller
According to storage, the repetition covering of data is realized, if that is, nearest data, which there are new data to arrive, replaces covering old data；Separately
Outside, it is communicated between personal computer and programmable logic controller (PLC), realizes personal computer to programmable logic controller (PLC)
Control, while data synchronization is realized, personal computer uses hard-disc storage, and data storage capacity is larger, to effectively prevent letter
Breath is lost.
In some embodiments, the control terminal and the digital sensor, input pressure sensor, output pressure
Sensor and return pressure sensor carry out the mutual inspection of working condition by the interaction of handshake.
By using above-mentioned technical proposal, when control terminal starts every time to digital sensor, input pressure sensor,
One signal of pressure sensor output and return pressure sensor, digital sensor, input pressure sensor, output pressure pass
Sensor and return pressure sensor feed back a signal to control terminal again, and judgement is compared to the signal of feedback in control terminal, and
Send out the instruction information that refusal is used, alerts or normally enabled.
In some embodiments, friendship that the personal computer and the programmable logic controller (PLC) pass through heartbeat signal
Mutually carry out the mutual inspection of working condition.
By using above-mentioned technical proposal, the phase of the respective working condition of personal computer and programmable logic controller (PLC) is realized
Mutually detection, leads to the omission of information and influences ultrafiltration result to prevent side's delay machine.
In some embodiments, be also stored in the database digital sensor, input pressure sensor,
The id information and calibration data of pressure sensor output and return pressure sensor；It is super that digitlization is also stored in the database
The normal operating parameters of each component and/or working life information in filter system.
By using above-mentioned technical proposal, programmable logic controller (PLC) is by establishing each digital sensor, input pressure
The database of sensor, pressure sensor output and return pressure sensor, each digital sensor, input pressure sensing
Device, pressure sensor output and return pressure sensor all have the values of information such as fixed model, replace digital sensor,
When input pressure sensor, pressure sensor output and return pressure sensor or system reboot, by each digitized sensor
The id information and programmable logic controller (PLC) number of device, input pressure sensor, pressure sensor output and return pressure sensor
It is compared according to the information in library, detection digital sensor, input pressure sensor, pressure sensor output and return pressure
Sensor it is whether legal with it is effective, and send out refusal use, warning or the instruction information that normally enables；Additionally by above-mentioned technology
Scheme realizes the online school of digital sensor, input pressure sensor, pressure sensor output and return pressure sensor
Standard, without by digital sensor, input pressure sensor, pressure sensor output and return pressure sensor disassemble into
Row calibration, saves the time, reduces cost of labor；In addition, by using above-mentioned technical proposal, realize to each component working state
Anticipation function, remind staff to replace or repair in advance, prevent failure, improve working efficiency.
In conclusion the utility model has the advantages that：
One, traditional analog sensor is replaced using digital sensor, by remaining environmental parameter value in addition to conductance
It is transmitted to control terminal together, and is judged by comparing the corresponding conductivity data of each environmental parameter selection, control is improved
End sends out the accuracy of instruction, to improve ultrafiltration accuracy.
Two, it is sensed in control terminal and digital sensor, input pressure sensor, pressure sensor output and return pressure
The mutual inspection for carrying out working condition between device by the interaction of handshake, improves the stability of system.
Three, working condition is carried out by interacting for heartbeat signal with the programmable logic controller (PLC) in personal computer
It mutually checks, information is effectively prevent to lose.
Four, database is established in programmable logic controller (PLC), to digital sensor, input pressure sensor, output
Pressure sensor and return pressure sensor carry out ID identifications, improve the safety of system, while realizing on-line testing
Purpose improves work efficiency.
Five, in programmable logic controller (PLC) storage digitlization ultrafiltration system in each component normal operating parameters and/or
Working life information realizes the anticipation of system.
Description of the drawings
Fig. 1 is the structural schematic diagram for the digitlization ultrafiltration system that the utility model embodiment discloses；
Fig. 2 is the module diagram for the digitlization ultrafiltration system that the utility model embodiment discloses；
The module signal of programmable logic controller (PLC) in the digitlization ultrafiltration system that the positions Fig. 3 the utility model embodiment discloses
Figure.
Reference numeral：
11, intake line；12, return line；13, output pipe；21, digital sensor；22, executive item；222, defeated
Enter valve；223, output valve；120, return valve；121, flow control valve；5, diaphragm pump；6, ultrafiltration membrane packet；61, automatic valve；
241, input pressure sensor；242, pressure sensor output；243, return pressure sensor；23, control terminal；231, personal meter
Calculation machine；232, programmable logic controller (PLC)；2321, logic control element；2322, database；2323, alarm unit；3, redundancy
The network switch；4, remote server.
Specific implementation mode
Below in conjunction with attached drawing, the technical solution of the utility model embodiment is described.
As shown in Figure 1, the utility model discloses a kind of digitlization ultrafiltration system, specifically include：
Flow pipe, including：Intake line 11 for being inputted for sample liquid, the output pipe 13 exported for permeate, and
It is connected to the return line 12 of output pipe 13 and intake line 11；Wherein, connect between above-mentioned intake line 11 and output pipe 13
Multiple ultrafiltration membrane packets 6 are connected with, as shown in Figure 1, in the utility model this embodiment, for being provided with 3 ultrafiltration membrane packets 6
It is illustrated, and each ultrafiltration membrane packet 6 is connected in parallel；Sample liquid is inputted from above-mentioned intake line 11, and after 6 ultrafiltration of ultrafiltration membrane packet,
The target permeate for meeting each target goals data demand is exported from output pipe 13, and index is not met from the output of return line 12
The nonstandard permeate that target data requires；
Control subsystem, including：It is set on output pipe 13 for being detected to the index real time data of permeate,
And it is set to the digital sensor on return line 12 for being detected to the index real time data of nonstandard permeate
21；It is set to the input pressure sensing for 6 input terminal of detection ultrafiltration membrane packet and output end hydraulic pressure respectively on flow pipe
Device 241 and pressure sensor output 242；The return pressure sensor 243 being set on return line 12；It is set to flow pipe
On, with each digital sensor 21, input pressure sensor 241, pressure sensor output 242 and return pressure sensor 243
The corresponding executive item 22 for controlling the circulation status of flow pipe；And the finger according to the detection gained of digital sensor 21
Mark real time data and input pressure sensor 241, the pressure sensor output 242 and detection gained of return pressure sensor 243
Pressure data controls executive item 22 and acts, and the target permeate of target goals data demand is met to output-index real time data
Control terminal 23.
As shown in Figure 1, in the utility model this embodiment, two groups of digital sensors 21 are located at output pipe
13 and return line 12 on, be located at digital sensor 21 on output pipe 13 and be used to carry out the index real time data of permeate
Detection, the digital sensor 21 on return line 12 for carrying out the index real time data of nonstandard permeate again
Detection, is detected by the index real time data to nonstandard permeate, to improve the accuracy judged, to improve control
Accuracy rate.
As shown in Figure 1, executive item 22 includes：The diaphragm pump 5 and control intake line 11 being set on intake line 11
The input valve 222 of break-make；It is set to the automatic valve 61 of each 6 both sides of ultrafiltration membrane packet；It is set on output pipe 13, controls target
The output valve 223 of permeate output；And it is set to return valve 120 and flow control valve 121 on return line 12.
As shown in Fig. 2, control terminal 23 and two groups of digital sensors 21, input pressure sensor 241, output pressure sense
Device 242 and the connection of return pressure sensor 243 and executive item 22, as shown in figure 3, control terminal 23 includes：At least one personal meter
Calculation machine 231 and an at least programmable logic controller (PLC) 232 corresponding with personal computer 231, it is each digital sensor 21, defeated
Enter pressure sensor 241, pressure sensor output 242 and return pressure sensor 243 respectively with personal computer 231 and can compile
Journey logic controller 232 connects, and each executive item 22 is connect with programmable logic controller (PLC) 232.As shown in Fig. 2, new in this practicality
In this embodiment of type, it is illustrated for including two personal computers 231 and two programmable logic controller (PLC)s 232,
Certainly, it is thus only necessary to emphasize that personal computer 231 and programmable logic controller (PLC) 232 are one-to-one, but particular number roots
Factually depending on the scale of border, do not limit.Database 2322 is equipped in programmable logic controller (PLC) 232, personal computer 231 has
Visualized operation interface communicates to connect between personal computer 231 and programmable logic controller (PLC) 232, makes operating personnel that can lead to
It crosses personal computer 231 and control operation is carried out to programmable logic controller (PLC) 232, meanwhile, realize personal computer 231 and can
Data synchronization is carried out between programmed logic controller 232, still, in the utility model this embodiment, programmable logic control
Its storage data quantity of the database 2322 of device 232 processed is smaller, therefore uses stack algorithm interim storage data, and personal computer
231 use hard-disc storage, and storage data quantity is larger, and programmable logic controller (PLC) 232 synchronizes after receiving new presupposed information
It is stored to personal computer 231, to prevent loss of data, while its own realizes the repetition covering of data, i.e., recently
If data there are new data to arrive old data are replaced in covering, to realize the iteration of data.
In the utility model this embodiment, the default letter that is stored in 232 database 2322 of programmable logic controller (PLC)
Breath includes the target goals data of above-mentioned target permeate, wherein the target goals data of target permeate respectively include conductance
Rate data and ambient parameter data, and ambient parameter data includes temperature data, volume flow rate data, mass velocity number
It is above-mentioned in addition to storing in 232 database 2322 of programmable logic controller (PLC) according to one or more combinations in, soda acid degrees of data
Outside the respective target goals data of target permeate, it is also stored with conductivity data and at least one institute in each target goals data
The target association relationship between ambient parameter data, i.e. corresponding conductivity data under varying environment supplemental characteristic are stated, such as：Target liquid
Under conditions of temperature is 25 DEG C, pH value is 4, the desired value of conductivity data is 80-150mS, and certainly, ambient parameter data is simultaneously
It is not limited to acid-base value temperature data data.Except conductivity data in above-mentioned each target goals data and target goals data and extremely
Outside target association relationship between a kind of few ambient parameter data, also deposited in 232 database 2322 of programmable logic controller (PLC)
The corresponding transmembrane pressure achievement data of each target permeate is contained, passes through the corresponding transmembrane pressure achievement data control of each target permeate
The opening degree of flow control valve 121 processed, to achieve the purpose that control hydraulic pressure, in addition to this, Programmable logical controller
It is also stored with each digital sensor 21, input pressure sensor 241, pressure sensor output 242 in 232 database 2322 of device
And in the id information and calibration data and this digitlization ultrafiltration system of return pressure sensor 243 each component normal work
Parameter and/or working life information.Certainly, the presupposed information stored in 232 database 2322 of above-mentioned programmable logic controller (PLC)
Personal computer 231 is synchronized to make a backup store.
As shown in figure 3, programmable logic controller (PLC) 232 further includes logic control element 2321 and alarm unit 2323, number
It is all connected to logic control element 2321 according to library 2322 and alarm unit 2323.
As shown in figure 3, each digital sensor 21 counts the index of the permeate detected or nonstandard permeate in real time
According to feeding back to programmable logic controller (PLC) 232, logic control element 2321 according to the feedack of each digital sensor 21,
Corresponding conductivity data is chosen from the ambient parameter data of corresponding target goals data in database 2322 be sent to patrol
It collects control unit 2321 and judgement is compared, and each executive item 22 is controlled by judging result and is acted.
As shown in figure 3, each digital sensor 21, all have fixed model, rated load, allow using load,
The id informations such as limit load, sensitivity, equally, input pressure sensor 241, pressure sensor output 242 and return pressure pass
Also there is sensor 243 fixed id information, programmable logic controller (PLC) 232 to be passed by storing each digitlization in database 2322
Each id information of sensor 21, input pressure sensor 241, pressure sensor output 242 and return pressure sensor 243, more
It changes digital sensor 21, input pressure sensor 241, pressure sensor output 242 or return pressure sensor 243 or is
When system is restarted, digital sensor 21, input pressure sensor 241, pressure sensor output 242 or return pressure sensor
243 send id informations to programmable logic controller (PLC) 232, and logic control element 2321 is by each digital sensor in system
21, input pressure sensor 241, the id information of pressure sensor output 242 or return pressure sensor 243 and database 2322
The reference id information of middle storage is compared, detection digital sensor 21, input pressure sensor 241, output pressure sensing
Whether device 242 or return pressure sensor 243 are legal or effective, if detecting the digital sensor 21 in system, input pressure
It is stored in the id information of force snesor 241, pressure sensor output 242 or return pressure sensor 243 and database 2322
It is not inconsistent with reference to id information, then controls alarm unit 2323 and carry out local warning, realizes and identity is carried out to digital sensor 21
Identification.
In addition, as shown in figure 3, establishing each digital sensor in the database 2322 of programmable logic controller (PLC) 232
21, the calibration data of input pressure sensor 241, pressure sensor output 242 and return pressure sensor 243, according to data
Digital sensor 21, input pressure sensor 241, pressure sensor output 242 and return pressure sensor 243 in library 2322
Calibration data to the digital sensor 21, input pressure sensor 241, pressure sensor output 242 of each position in system
And return pressure sensor 243 carries out parameter regulation to be calibrated, and realizes digital sensor 21, input pressure sensor
241, the on-line calibration of pressure sensor output 242 and return pressure sensor 243 is not necessarily to digital sensor 21, input
Pressure sensor 241, pressure sensor output 242 and return pressure sensor 243 are disassembled and are calibrated, and save the time,
Reduce cost of labor.
Secondly, as shown in figure 3, being stored with digitlization ultrafiltration system in the database 2322 of programmable logic controller (PLC) 232
In each component normal operating parameters and/or working life information, can be according to the normal operating parameters of each component and/or work longevity
Life information judges whether it needs replacing or repair, if so, control alarm unit 2323 carries out local warning, realizes to each
The anticipation function of component working state reminds staff to replace or repair, prevents failure, improves working efficiency in advance.
As shown in Figures 2 and 3, in order to improve the stability of system, in the utility model this embodiment, control terminal 23
Lead between digital sensor 21, input pressure sensor 241, pressure sensor output 242 and return pressure sensor 243
Cross handshake interaction carry out working condition mutual inspection, control terminal 23 every time start when to digital sensor 21,
243 1 input pressure sensor 241, pressure sensor output 242 and return pressure sensor signals, digital sensor
21, input pressure sensor 241, pressure sensor output 242 and return pressure sensor 243 feed back a signal to control again
End 23, the feedback signal include each digital sensor 21, input pressure sensor 241, pressure sensor output 242 and reflux
The signal of feedback is compared with the correspondence id information in database 2322 for the id information of pressure sensor 243, control terminal 23
Judge, in digital sensor 21, input pressure sensor 241, pressure sensor output 242 or return pressure sensor 243
There are when problem, or occur when certain symptom needs to handle but do not interfere with temporarily normal operation and digital sensor 21,
The variation of input pressure sensor 241, pressure sensor output 242 or return pressure sensor 243 in error range when,
Make the instruction information that refusal is used, alerts or normally enabled.
As shown in Fig. 2, information is lost in order to prevent, in the utility model this embodiment, personal computer 231 with can
Programmed logic controller 232 carries out the mutual inspection of working condition by the interaction of heartbeat signal.It, can i.e. every a specific time
Programmed logic controller 232 i.e. to computer 231 send a data packet, personal computer 231 receive after in the specific time
One information of interior reply passes through 232 transmission data packet of programmable logic controller (PLC) and personal meter to programmable logic controller (PLC) 232
The case where calculation 231 return information of machine, judges whether bipartite communication link is already off, if programmable logic controller (PLC) 232
And personal computer 231 is in preset time when mutually can not receive to square signal, then judges personal computer 231 or programmable patrol
Collect 232 delay machine of controller.It is another in the case of personal computer 231 or the wherein side's delay machine of programmable logic controller (PLC) 232
Square control system is out of service, and personal computer 231 or programmable logic controller (PLC) 232 in delay machine state is waited for restart；
Or system continues to run with, but data are directly stored in the personal computer 231 or programmable logic controller (PLC) 232 of normal work, wait for
After delay machine side restarts, then send data to delay machine side.Wherein, judge personal computer 231 or programmable logic controller (PLC) 232
Whether normal preset time is not more than 1 minute.
As shown in Fig. 2, the digitlization ultrafiltration system that the utility model discloses further includes an at least redundant network interchanger
3, every redundant network interchanger 3 corresponds to one group of personal computer 231 and programmable logic controller (PLC) 232, the individual in every group
Computer 231 and programmable logic controller (PLC) 232 are communicated with corresponding redundant network interchanger 3 respectively, in addition, more being provided with
In the case of a redundant network interchanger 3, each 3 intercommunication of redundant network interchanger, and remotely taken with one respectively
Business device 4 communicates.By the setting of redundant network interchanger 3 and remote server 4, local work station and remote work station are realized
Redundant Control realizes the effect of remote parameter modification, remote online calibration and remote failure warning.In addition, long-range clothes
Business device 4 can also realize the high in the clouds storage of information, and the information of each component in each workstation system is collected respectively and is stored in high in the clouds,
The data information of each supplier can also be collected simultaneously and be stored in high in the clouds, called convenient for the later stage, and realize each supplier and work
The information sharing of factory.
Based on the digitlization hyperfiltration process of above-mentioned digitlization ultrafiltration system, include the following steps：
S0：Sample liquid is inputted from the inlet of intake line 11；
S1：Control terminal 23 selects corresponding transmembrane pressure achievement data to adjust flow control according to the requirement of required target permeate
The aperture of valve 121 processed and the flow of diaphragm pump 5 make both input pressure sensor 241, return pressure sensor 243 detect
To hydraulic pressure average value subtract pressure sensor output 242 and detect the obtained difference of hydrostatic sensor and transmembrane pressure achievement data
It is identical；
S11：Sample liquid is pumped into ultrafiltration membrane packet 6 by diaphragm pump 5；
S2：The index real time data of permeate of the digital sensor 21 to being exported from ultrafiltration membrane packet 6 is detected, and anti-
It is fed to control terminal 23；
S3：Conductivity data and at least one ambient parameter data in the index real time data of the acquisition permeate of control terminal 23
Between real time correlation relationship, and the target association relationship between the corresponding index target data stored with it compares, and judges whether
Matching：
If so, being target permeate, that is, the action of output valve 223 controlled in executive item 22 keeps target permeate defeated
Go out；
If it is not, being then nonstandard permeate, that is, controlling the action of return valve 120 makes nonstandard permeate enter return line 12
To be again introduced into ultrafiltration membrane packet 6 after being mixed with sample liquid, until the index real time data of permeate meets the index of target permeate
Target permeate is exported after target data.
In conclusion the utility model disclose digitlization ultrafiltration system by control terminal 23 according to required target permeate
Requirement select corresponding transmembrane pressure achievement data to adjust the aperture of flow control valve 121 and the flow of diaphragm pump 5, so that input is pressed
The hydraulic pressure average value that the detection of both force snesor 241, return pressure sensors 243 obtains subtracts the inspection of pressure sensor output 242
The difference of the hydrostatic sensor measured is identical as transmembrane pressure achievement data, to filter out satisfactory permeate；Meanwhile it adopting
Traditional analog sensor is replaced with digital sensor 21, remaining environmental parameter value in addition to conductance is transmitted to control together
End processed, and judged by comparing the corresponding conductivity data of each environmental parameter selection, it improves control terminal and sends out instruction
Accuracy, to improve ultrafiltration accuracy.
Above example is only to illustrate the technical solution of the utility model, rather than is carried out to the protection domain of utility model
Limitation.Although the utility model is described in detail with reference to above-described embodiment, those of ordinary skill in the art still may be used
It is modified to technical solution described in the above embodiment with not making creative work, to obtain different, essence not
It is detached from the other technologies scheme of the design of the utility model, it is claimed that these technical solutions similarly belong to the utility model
Range.
Claims (9)
1. digitizing ultrafiltration system, which is characterized in that including：
For inputting the runner pipe that simultaneously output-index real time data meets the target permeate of target goals data demand for sample liquid
Road, at least one ultrafiltration membrane packet for being connected on the flow pipe and being arranged in parallel（6）An and control subsystem；
The control subsystem includes：
It is set to multigroup digital sensor of the index real time data on the flow pipe for detecting permeate（21）；
It is set on the flow pipe for detecting ultrafiltration membrane packet respectively（6）The input pressure of input terminal and output end hydraulic pressure
Force snesor（241）And pressure sensor output（242）；
It is set on the flow pipe, the executive item for controlling each node circulation status of the flow pipe（22）；And
With each digital sensor（21）, input pressure sensor（241）And pressure sensor output（242）Connection, and
Control the executive item（22）Action, to export the control terminal for the target permeate for meeting target goals data demand（23）；
Wherein, the target goals data are corresponding with the index real time data, include that conductivity data and environment are joined
Number data.
2. digitlization ultrafiltration system as described in claim 1, which is characterized in that the ambient parameter data includes temperature number
According to, one or more combinations in volume flow rate data, mass velocity data, soda acid degrees of data.
3. digitlization ultrafiltration system as described in claim 1, which is characterized in that the flow pipe includes：
It is connected to the ultrafiltration membrane packet（6）Input terminal, the intake line for inputting the sample liquid（11）；
It is connected to the ultrafiltration membrane packet（6）Output end, the output pipe for exporting the permeate（13）；
It is connected to the output pipe（13）With the intake line（11）, for nonstandard permeate be back to intake line（11）
Return line（12）.
4. digitlization ultrafiltration system according to claim 3, which is characterized in that the return line（12）It is equipped with reflux
Pressure sensor（243）And the digital sensor（21）.
5. digitlization ultrafiltration system as claimed in claim 4, which is characterized in that the executive item（22）Including：
It is set to the intake line（11）On diaphragm pump（5）And the control intake line（11）The input valve of break-make
（222）；
It is set to each ultrafiltration membrane packet（6）The automatic valve of both sides（61）；
It is set to the output pipe（13）Output valve that is upper, controlling the target permeate output（223）；And
It is set to the return line（12）On return valve（120）And flow control valve（121）.
6. digitlization ultrafiltration system as claimed in claim 5, which is characterized in that the control terminal（23）Including at least one
People's computer（231）And at least one programmable logic controller (PLC) that data storage is carried out using stack algorithm（232）；
The programmable logic controller (PLC)（232）Equipped with for storing conductivity data and at least one in the target goals data
The data of target association relationship and the corresponding transmembrane pressure achievement data of each target permeate between the kind ambient parameter data
Library（2322）；
The programmable logic controller (PLC)（232）Control the executive item（22）Action；
The personal computer（231）And the programmable logic controller (PLC)（232）Communication realizes that data synchronize.
7. digitlization ultrafiltration system as claimed in claim 6, which is characterized in that the control terminal（23）It is passed with the digitlization
Sensor（21）, input pressure sensor（241）, pressure sensor output（242）And return pressure sensor（243）By shaking hands
The interaction of signal carries out the mutual inspection of working condition.
8. digitlization ultrafiltration system as claimed in claim 6, which is characterized in that the personal computer（231）With it is described can
Programmed logic controller（232）The mutual inspection of working condition is carried out by the interaction of heartbeat signal.
9. digitlization ultrafiltration system as claimed in claim 6, which is characterized in that the database（2322）In also store
State digital sensor（21）, input pressure sensor（241）, pressure sensor output（242）And return pressure sensor
（243）Id information and calibration data；The database（2322）In be also stored with digitlization ultrafiltration system in each component just
Normal running parameter and/or working life information.
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| Publication number | Priority date | Publication date | Assignee | Title |
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