CN207493327U - Water factory filter tank automatically controls filtration system - Google Patents
Water factory filter tank automatically controls filtration system Download PDFInfo
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- CN207493327U CN207493327U CN201721326023.7U CN201721326023U CN207493327U CN 207493327 U CN207493327 U CN 207493327U CN 201721326023 U CN201721326023 U CN 201721326023U CN 207493327 U CN207493327 U CN 207493327U
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Abstract
The utility model is related to a kind of water factory filter tanks to automatically control filtration system, and including PLC control unit, water level detection gauge and outlet valve Measuring opening instrument, the PLC control unit includes controller and the first subtracter；The water level detection gauge detects filter tank water level, its output terminal connects the water level detecting value input terminal of the controller, second input terminal of the controller connects the water level setting value output terminal of the PLC control unit, the output terminal of the controller connects the first input end of first subtracter, the outlet valve Measuring opening instrument output terminal connects the second input terminal of first subtracter, and first subtractor outputs connect the outlet valve control terminal.The water factory filter tank automatically controls that filtration system is simple in structure, can guarantee the constant of filter tank water level.
Description
Technical field
The utility model is related to a kind of water purification fields, and in particular to a kind of water factory filter tank automatically controls filtration system.
Background technology
Filter tank is the important link in water factory's water-purifying process, and filter ability, is the pass of filter tank stable and high effective operation
Key.
In order to ensure good filter effect, filter tank water level needs, often in above filtrate, to prevent into water flow to filter
Material causes to impact, and ensures that the steady and entire filter tank of water inlet can uniform filtering.But since the situation for carrying out water changes shakiness
It is fixed, when it is big when it is small, it is constant for guaranteed water level, need frequently to adjust flowing water Valve aperture size.If this work is by artificial
It if completion, can only rule of thumb adjust, not ensure that accurate.Valve is opened greatly, and water level decreasing is too fast to expose filtrate, cause
Into water slug filtrate, filtering is uneven；Valve open it is small, water level rise, filter tank is diffused out more than flood level.And when filter tank number
When measuring larger, labor workload is huge, and work is heavy.
Utility model content
In order to overcome above-mentioned defect in the prior art, the purpose of this utility model is to provide one kind and can guarantee filter tank
The water factory filter tank of constant level automatically controls filtration system.
To achieve these goals, the utility model provides a kind of water factory filter tank and automatically controls filtration system, PLC controls
Unit, water level detection gauge and outlet valve Measuring opening instrument, the PLC control unit include controller and the first subtracter；
The water level detection gauge detects filter tank water level, and output terminal connects the water level detecting value input terminal of the controller,
Second input terminal of the controller connects the water level setting value output terminal of the PLC control unit, the output of the controller
End connects the first input end of first subtracter, and the outlet valve Measuring opening instrument output terminal connects first subtracter
The second input terminal, first subtractor outputs connect the outlet valve control terminal.
Current filter tank water level is detected by water level detection gauge, and by the water level of the water level and default in the controller into
The aperture that outlet valve should be opened is calculated in row, then real with outlet valve to the aperture that outlet valve should be opened by the first subtracter
When aperture be compared, so as to adjust the aperture of outlet valve, ensure the constant of filter tank water level.The water factory filter tank automatically controlled
It is simple to filter system structure, easily implements.
Further, the PLC control unit further includes the second subtracter and storage unit, and the of second subtracter
One input terminal is connected with water level detection gauge output terminal, the second input terminal and the water level setting value output terminal phase of second subtracter
Even, the output terminal of second subtracter is connect with controller, and the controller is connected with storage unit, in the storage unit
It prestores and is discharged valve opening numerical value correspondingly with subtracter output valve, the output terminal of the memory is with connecting the first subtraction
The first input end of device.The program can quickly obtain the due aperture numerical value of outlet valve.
Further, the controller is PID controller.Can rapidly and accurately obtain outlet valve using PID controller should
Some aperture numerical value.
Further, signal processing circuit is further included, the signal processing circuit includes the first signal processing circuit and the
Binary signal processing circuit, the input terminal connection water level detection gauge output terminal of first signal processing circuit, described first
Signal processing circuit output terminal connects the water level detecting value input terminal of the controller, the input of the second signal processing circuit
End connects the outlet valve Measuring opening instrument output terminal, and the second signal processing circuit output terminal connects first subtracter
The second input terminal.The water outlet detected by the water level information and outlet valve Measuring opening instrument that are detected to water level detection gauge
Valve opening information is handled, and the water factory filter tank is contributed to automatically control filtration system and more accurately obtains water level information and water outlet
Valve opening information, finally can more accurately adjust the aperture of outlet valve, guaranteed water level it is constant.
Further, the signal processing circuit includes filter circuit and analog to digital conversion circuit, and pending information passes through
Filter circuit is filtered, then is transmitted to analog to digital conversion circuit and is converted to digital information simultaneously by analog-digital conversion circuit as described
It is sent in the PLC control unit.
Further, recoil switch board, the PLC control unit and the recoil switch board communication connection are further included, to
The switch board that recoils sends the instruction of start and stop recoil air blower and recoil pump, so as to fulfill the air-water backwashing to filter tank.
Further, the PLC control unit output terminal is also respectively connected with inlet valve, water discharging valve, recoil air valve, anti-
The control terminal of flashing valve, air bleeding valve, the keying of control inlet valve, water discharging valve, recoil air valve, recoil water valve, air bleeding valve.
Further, delivery turbidity detector and/or head loss detector, the water turbidity detector and water are further included
The output terminal of head loss detector connects the correspondence signal input part of the PLC control unit respectively.It is detected by delivery turbidity
Water quality after instrument detection is filtered detects head loss amount by head loss detector and is sent in PLC control unit, with
It is referred to for administrator.
Further, host computer is further included, the host computer connects N number of PLC control unit, and each PLC controls are single
The corresponding filter tank of member, the PLC control unit information output connect the information input terminal of the host computer.
Each PLC control unit corresponds to a filter tank, realizes the relatively independent of control, any one filter from
When dynamic control is broken down, automatically controlling for other filters is not influenced, concentrated reflection " decentralised control is managed concentratedly "
Advantage and feature.
The beneficial effects of the invention are as follows：The water factory filter tank, which automatically controls filtration system, to adjust outlet valve automatically according to water level
Door aperture, guaranteed water level is constant, adjust response quickly, overshoot range is small, and precise control, steady-state error is small, not only can it is water-saving,
It is energy saving, moreover it is possible to improve water quality, increase the retaining power of filtering layer, extend the work period, improve water yield.
The additional aspect and advantage of the utility model will be set forth in part in the description, partly will be from following description
In become apparent or recognized by the practice of the utility model.
Description of the drawings
The above-mentioned and/or additional aspect and advantage of the utility model will in the description from combination accompanying drawings below to embodiment
Become apparent and be readily appreciated that, wherein：
Fig. 1 is the functional block diagram of the utility model.
Specific embodiment
The embodiment of the utility model is described below in detail, the example of the embodiment is shown in the drawings, wherein from beginning
Same or similar element is represented to same or similar label eventually or there is the element of same or like function.Below by ginseng
The embodiment for examining attached drawing description is exemplary, and is only used for explaining the utility model, and it is not intended that the utility model
Limitation.
In the description of the present invention, unless otherwise prescribed and limit, it should be noted that term " installation ", " phase
Even ", " connection " should be interpreted broadly, for example, it may be the company inside mechanical connection or electrical connection or two elements
It is logical, it can be directly connected, can also be indirectly connected by intermediary, it for the ordinary skill in the art, can
To understand the concrete meaning of above-mentioned term as the case may be.
A kind of water factory filter tank as shown in Figure 1 automatically controls filtration system, PLC control unit, water level detection gauge and water outlet
Valve opening detector, the PLC control unit include controller and the first subtracter.
The water level detection gauge detects filter tank water level, and output terminal connects the water level detecting value input terminal of the controller,
Second input terminal of the controller connects the water level setting value output terminal of the PLC control unit, the output of the controller
End connects the first input end of first subtracter, and the outlet valve Measuring opening instrument output terminal connects first subtracter
The second input terminal, first subtractor outputs connect the outlet valve control terminal.
Water level detection gauge detects the water level in filter tank, and the water level information for detecting gained is sent to the control of PLC control unit
Device processed, controller are transported according to the water level information set in received water level information and system using existing method
Calculation obtains the due aperture of outlet valve, and is sent to the first subtracter of PLC control unit, while outlet valve Measuring opening instrument is examined
The aperture for measuring water valve is also sent to the first subtracter of PLC control unit, and two opening values are subtracted in the first subtracter
Method operation obtains the aperture that outlet valve should adjust, and is sent to the aperture of outlet valve control terminal adjustment outlet valve.Here it is involved
And the operation arrived uses existing method.
Preferably, controller here can be selected but be not limited to PID controller, and involved PID arithmetic uses here
Existing method.
Preferably, the PLC control unit which automatically controls in filtration system further includes the second subtracter and deposits
Storage unit, the first input end of second subtracter are connected with water level detection gauge output terminal, and the second of second subtracter
Input terminal is connected with water level setting value output terminal, and the output terminal of second subtracter is connect with controller, the controller with
Storage unit is connected, and is prestored in the storage unit and is discharged valve opening numerical value correspondingly with subtracter output valve, described
The output terminal of memory and the first input end for connecting the first subtracter.By the second subtracter to current level and the water of setting
Position carries out subtraction, and operation result is sent in storage unit, and should in controller control storage unit output storage unit
Operation result is discharged valve opening numerical value and is given to the first subtracter correspondingly, and then root outlet valve Measuring opening instrument detects again
The opening value of water valve subtraction in the first subtracter, so as to obtain the aperture that outlet valve should adjust.Specific controller
Memory output is made to correspond the method for numerical value using the prior art with it according to input information, be not the weight of the utility model
Point, therefore not to repeat here.
The water factory filter tank automatically controls filtration system and further includes recoil switch board, delivery turbidity detector and/or head damage
Detector, the PLC control unit and the recoil switch board communication connection are lost, start and stop recoil air blast is sent to recoil switch board
The instruction of machine and recoil pump；The output terminal of the water turbidity detector and head loss detector connects the PLC controls respectively
The correspondence signal input part of unit.The PLC control unit output terminal is also respectively connected with inlet valve, water discharging valve, back flushing air
Valve, recoil water valve, air bleeding valve control terminal, control inlet valve, water discharging valve, recoil air valve, recoil water valve, air bleeding valve open
It closes.
PLC control unit control filter tank inlet valve, water discharging valve, recoil air valve, recoil water valve, air bleeding valve, outlet valve,
The information such as filter tank water level, delivery turbidity, head loss, water outlet valve opening are acquired, and are communicated with recoil switch board, start and stop recoil drum
Wind turbine and recoil pump.
Filter tank is divided into operation, recoil and stops three kinds of states.When entering operating status, PLC control unit detects each valve
The state of door, closes water discharging valve, recoil air valve, recoil water valve, air bleeding valve, and communication closes air blower and water pump, opens water inlet
Valve starts simultaneously at adjusting water outlet valve.Operating personnel can set and change at any time the water level for needing to maintain.After setting, system
Automatic adjustment water level ensures permanent water level operation to water level is set.
The water factory filter tank automatically controls filtration system and further includes host computer, and the N number of PLC controls of host computer connection are single
Member, the PLC control unit information output connect the information input terminal of the host computer.The letter that PLC control unit is acquired
Breath can be transmitted to host computer, and reference is checked for administrative staff.
As the preferred embodiment of the present embodiment, should water factory filter tank automatically control filtration system and further include signal processing electricity
Road, the signal processing circuit include the first signal processing circuit and second signal processing circuit, the first signal processing electricity
The input terminal on road connects the water level detection gauge output terminal, and the first signal processing circuit output terminal connects the controller
Water level detecting value input terminal, the input terminal of the second signal processing circuit connect the outlet valve Measuring opening instrument output terminal,
The second signal processing circuit output terminal connects the second input terminal of first subtracter.The signal processing circuit includes
Filter circuit and analog to digital conversion circuit, pending information is filtered by filter circuit, then is transmitted to analog-to-digital conversion
Circuit is simultaneously converted to digital information by analog-digital conversion circuit as described and is sent in the PLC control unit, i.e., obtained by detection
The filtered circuit of water level information is filtered, and then carries out being then forwarded to after analog-to-digital conversion the control of PLC control unit again
Device processed, detect gained the filtered circuit of outlet valve opening information be filtered after, then retransmited after carrying out analog-to-digital conversion
To the first subtracter of PLC control unit, this so that PLC control unit is more accurate to the adjustment for being discharged valve opening.
In the description of this specification, reference term " one embodiment ", " example ", " is specifically shown " some embodiments "
The description of example " or " some examples " etc. means specific features, structure, material or the spy for combining the embodiment or example description
Point is contained at least one embodiment or example of the utility model.In the present specification, to the schematic table of above-mentioned term
It states and may not refer to the same embodiment or example.Moreover, particular features, structures, materials, or characteristics described can be
It is combined in an appropriate manner in any one or more embodiments or example.
While there has been shown and described that the embodiment of the utility model, it will be understood by those skilled in the art that：
In the case of the principle and objective for not departing from the utility model can these embodiments be carried out with a variety of variations, modification, replaced
And modification, the scope of the utility model are limited by claim and its equivalent.
Claims (9)
1. a kind of water factory filter tank automatically controls filtration system, which is characterized in that PLC control unit, water level detection gauge and outlet valve
Measuring opening instrument, the PLC control unit include controller and the first subtracter；
The water level detection gauge detects filter tank water level, and output terminal connects the water level detecting value input terminal of the controller, described
Second input terminal of controller connects the water level setting value output terminal of the PLC control unit, and the output terminal of the controller connects
Connect the first input end of first subtracter, the outlet valve Measuring opening instrument output terminal connects the of first subtracter
Two input terminals, first subtractor outputs connect the outlet valve control terminal.
2. water factory filter tank according to claim 1 automatically controls filtration system, which is characterized in that PLC control unit includes
Second subtracter and storage unit, the first input end of second subtracter are connected with water level detection gauge output terminal, and described
Second input terminal of two subtracters is connected with water level setting value output terminal, and output terminal and the controller of second subtracter connect
It connects, the controller is connected with storage unit, prestores in the storage unit and is discharged correspondingly with subtracter output valve
Valve opening numerical value, the output terminal of the memory and the first input end for connecting the first subtracter.
3. water factory filter tank according to claim 1 automatically controls filtration system, which is characterized in that the controller is PID
Controller.
4. water factory filter tank according to claim 1 automatically controls filtration system, which is characterized in that further includes signal processing electricity
Road, the signal processing circuit include the first signal processing circuit and second signal processing circuit, the first signal processing electricity
The input terminal on road connects the water level detection gauge output terminal, and the first signal processing circuit output terminal connects the controller
Water level detecting value input terminal, the input terminal of the second signal processing circuit connect the outlet valve Measuring opening instrument output terminal,
The second signal processing circuit output terminal connects the second input terminal of first subtracter.
5. water factory filter tank according to claim 4 automatically controls filtration system, which is characterized in that the signal processing circuit
Including filter circuit and analog to digital conversion circuit, pending information is filtered by filter circuit, then is transmitted to modulus
Conversion circuit is simultaneously converted to digital information by analog-digital conversion circuit as described and is sent in the PLC control unit.
6. water factory filter tank according to claim 1 automatically controls filtration system, which is characterized in that further includes recoil control
Cabinet, the PLC control unit are communicated to connect with the recoil switch board, to recoil switch board transmission start and stop recoil air blower and instead
Rush the instruction of pump.
7. water factory filter tank according to claim 1 automatically controls filtration system, which is characterized in that the PLC control unit
Output terminal is also respectively connected with the control terminal of inlet valve, water discharging valve, recoil air valve, recoil water valve, air bleeding valve, controls inlet valve
The keying of door, water discharging valve, recoil air valve, recoil water valve, air bleeding valve.
8. water factory filter tank according to claim 1 automatically controls filtration system, which is characterized in that further includes delivery turbidity inspection
The output terminal of survey instrument and/or head loss detector, the water turbidity detector and head loss detector connects described respectively
The correspondence signal input part of PLC control unit.
9. water factory filter tank according to claim 1 automatically controls filtration system, which is characterized in that further includes host computer, institute
It states host computer and connects N number of PLC control unit, each PLC control unit corresponds to a filter tank, the PLC control unit letter
Cease the information input terminal that output terminal connects the host computer.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721326023.7U CN207493327U (en) | 2017-10-13 | 2017-10-13 | Water factory filter tank automatically controls filtration system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721326023.7U CN207493327U (en) | 2017-10-13 | 2017-10-13 | Water factory filter tank automatically controls filtration system |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN207493327U true CN207493327U (en) | 2018-06-15 |
Family
ID=62500565
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201721326023.7U Active CN207493327U (en) | 2017-10-13 | 2017-10-13 | Water factory filter tank automatically controls filtration system |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN207493327U (en) |
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2017
- 2017-10-13 CN CN201721326023.7U patent/CN207493327U/en active Active
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