阅读说明：本技术 一种基于工艺优化运行的滤池智能控制方法 (Intelligent filter tank control method based on process optimization operation ) 是由 朱报开 林雄生 漆青松 于 2021-01-25 设计创作，主要内容包括：本发明公开了一种基于工艺优化运行的滤池智能控制方法,包括以下步骤,步骤一,探测器安装；步骤二,控制器安装；步骤三,设备连接；步骤四,程序编写；步骤五,参数设定；步骤六,数据采集；步骤七,智能控制；所述步骤一1)中,滤池内部安装有反冲洗设备,所述步骤二中,智能控制阀门包括进水阀、出水阀、排污阀、反冲进气阀、排气阀和反冲水阀,该发明相较于现有的滤池控制方法,设计有自动化控制功能,有力于提高控制方法的智能化程度,实现滤池的无人化管理,该方法灵活性高,可编辑性强,可进行离线或在线编程及设定参数的修改,能迅速调节设备的运行状态,该方法的运用领域广,适用于各种功能的滤池。(The invention discloses a filter tank intelligent control method based on process optimization operation, which comprises the following steps of firstly, installing a detector; step two, installing a controller; step three, equipment connection; step four, programming; step five, setting parameters; step six, data acquisition; step seven, intelligent control; compared with the existing filter control method, the automatic control method has the advantages that an automatic control function is designed, the intelligent control method is forcefully used for improving the intelligent degree of the control method and realizing unmanned management of the filter, the method is high in flexibility and editability, offline or online programming and parameter setting modification can be carried out, the running state of the equipment can be rapidly adjusted, the method is wide in application field, and the method is suitable for the filter with various functions.)

1. A filtering pool intelligent control method based on process optimization operation comprises the following steps of firstly, installing a detector; step two, installing a controller; step three, equipment connection; step four, programming; step five, setting parameters; step six, data acquisition; step seven, intelligent control; the method is characterized in that:

in the first step, the detector installation comprises the following steps:

1) a temperature detector, a dissolved oxygen detector, a pH detector, a turbidimeter and a liquid level detector are arranged in each filter;

2) installing flow detectors at an input port and an output port of the filter;

in the second step, intelligent control valves are arranged at the input port and the output port of the filter tank;

in the third step, the equipment connection comprises the following steps:

1) connecting each detector with a signal input module of a computer;

2) connecting a signal output module of a computer with an input serial port of the PLC;

3) connecting the controller with an output serial port of the PLC;

in the fourth step, the programming comprises the following steps:

1) compiling a PLC control program and a PID operation program;

2) implanting a PLC control program into the PLC;

in the fifth step, the standard parameter values of all the functional modules in the PLC control program are set according to the requirements, and the PLC control program is updated;

in the sixth step, the detector collects the water temperature, dissolved oxygen value, pH value, turbidity value and liquid level value data of the filter tank and transmits the data to the computer;

in the seventh step, the intelligent control comprises the following steps:

1) the computer compares the water temperature, the dissolved oxygen value, the pH value, the turbidity value and the liquid level value of the filter with set standard values to obtain deviation signals;

2) obtaining an output signal after PID operation of the deviation signal;

3) the output signal is transmitted to a PLC, the PLC generates a control signal to control an intelligent control valve, and the liquid inlet quantity and the liquid outlet quantity are controlled by adjusting the opening and closing degree of the valve;

4) the PLC program continuously runs, all modules are sequentially and circularly started, and the filter tank is subjected to intermittent backwashing.

2. The intelligent control method for the filter tank based on the process optimization operation according to claim 1, characterized in that: in the step 1), a back washing device is arranged in the filter.

3. The intelligent control method for the filter tank based on the process optimization operation according to claim 1, characterized in that: in the second step, the intelligent control valve comprises a water inlet valve, a water outlet valve, a blowdown valve, a recoil air inlet valve, an exhaust valve and a recoil water valve.

4. The intelligent control method for the filter tank based on the process optimization operation according to claim 1, characterized in that: in the step four 1), a back flush control module and a liquid level control module are designed in the PLC control program.

5. The intelligent control method for the filter tank based on the process optimization operation according to claim 1, characterized in that: and in the fifth step, the running time of each functional module in the PLC control program is set.

6. The intelligent control method for the filter tank based on the process optimization operation according to claim 1, characterized in that: in the seventh step 4), the backwashing process is as follows: closing the water inlet valve for water filtration, closing the clear water outlet valve when the water level is reduced to a set backflushing water level, opening the wastewater drain valve, closing the exhaust valve after the signal of the drain valve is in place, opening the backflushing air inlet valve, and starting the fan for air flushing; after the air flushing is finished, a backflushing water inlet valve is opened, a water pump is started, and air-water mixed flushing is carried out; after the flushing is finished, closing the fan, closing the backflushing air inlet valve, opening the exhaust valve and flushing with single water; after the flushing is finished, the backflushing water inlet valve is closed, the backflushing water pump is closed, the waste water discharge valve is closed, the filtered clean water valve is opened after the water inlet valve is opened, and when the water level rises to the filtering constant water level, the normal filtering procedure is carried out.

Technical Field

The invention relates to the technical field of intelligent control of a filter tank, in particular to an intelligent control method of the filter tank based on process optimization operation.

Background

The filter tank is a device for filtering liquid, the existing filter tank control method has low automation degree, most of the existing filter tank control methods need manual regulation and control, not only consumes manpower, but also is easy to generate errors, so that the filtering cost is increased, and the filter tank has poor flexibility and poor editability due to low intelligent degree, cannot regulate and set control parameters in real time, and cannot realize convenient regulation and control of filtering equipment.

Disclosure of Invention

The invention aims to provide an intelligent filter tank control method based on process optimization operation, so as to solve the problems in the background technology.

In order to solve the technical problems, the invention provides the following technical scheme: a filtering pool intelligent control method based on process optimization operation comprises the following steps of firstly, installing a detector; step two, installing a controller; step three, equipment connection; step four, programming; step five, setting parameters; step six, data acquisition; step seven, intelligent control;

in the first step, the detector installation comprises the following steps:

1) a temperature detector, a dissolved oxygen detector, a pH detector, a turbidimeter and a liquid level detector are arranged in each filter;

2) installing flow detectors at an input port and an output port of the filter;

in the second step, intelligent control valves are arranged at the input port and the output port of the filter tank;

in the third step, the equipment connection comprises the following steps:

1) connecting each detector with a signal input module of a computer;

2) connecting a signal output module of a computer with an input serial port of the PLC;

3) connecting the controller with an output serial port of the PLC;

in the fourth step, the programming comprises the following steps:

1) compiling a PLC control program and a PID operation program;

2) implanting a PLC control program into the PLC;

in the fifth step, the standard parameter values of all the functional modules in the PLC control program are set according to the requirements, and the PLC control program is updated;

in the sixth step, the detector collects the water temperature, dissolved oxygen value, pH value, turbidity value and liquid level value data of the filter tank and transmits the data to the computer;

in the seventh step, the intelligent control comprises the following steps:

1) the computer compares the water temperature, the dissolved oxygen value, the pH value, the turbidity value and the liquid level value of the filter with set standard values to obtain deviation signals;

2) obtaining an output signal after PID operation of the deviation signal;

3) the output signal is transmitted to a PLC, the PLC generates a control signal to control an intelligent control valve, and the liquid inlet quantity and the liquid outlet quantity are controlled by adjusting the opening and closing degree of the valve;

4) the PLC program continuously runs, all modules are sequentially and circularly started, and the filter tank is subjected to intermittent backwashing.

According to the technical scheme, in the step 1), a back washing device is installed inside the filter.

According to the technical scheme, in the second step, the intelligent control valve comprises a water inlet valve, a water outlet valve, a blowdown valve, a backflushing air inlet valve, an exhaust valve and a backflushing water valve.

According to the technical scheme, in the step four 1), a back washing control module and a liquid level control module are designed in the PLC control program.

According to the technical scheme, in the fifth step, the running time of each functional module in the PLC control program is set.

According to the technical scheme, in the seventh step 4), the backwashing process is as follows: closing the water inlet valve for water filtration, closing the clear water outlet valve when the water level is reduced to a set backflushing water level, opening the wastewater drain valve, closing the exhaust valve after the signal of the drain valve is in place, opening the backflushing air inlet valve, and starting the fan for air flushing; after the air flushing is finished, a backflushing water inlet valve is opened, a water pump is started, and air-water mixed flushing is carried out; after the flushing is finished, closing the fan, closing the backflushing air inlet valve, opening the exhaust valve and flushing with single water; after the flushing is finished, the backflushing water inlet valve is closed, the backflushing water pump is closed, the waste water discharge valve is closed, the filtered clean water valve is opened after the water inlet valve is opened, and when the water level rises to the filtering constant water level, the normal filtering procedure is carried out.

Compared with the prior art, the invention has the following beneficial effects: compared with the existing filter pool control method, the automatic control function is designed, the intelligent degree of the control method is improved powerfully, the unmanned management of the filter pool is realized, the method is high in flexibility and editability, off-line or on-line programming and parameter setting modification can be carried out, the running state of equipment can be adjusted rapidly, the application field of the method is wide, and the method is suitable for filter pools with various functions.

Drawings

The accompanying drawings, which are included to provide a further understanding of the invention and are incorporated in and constitute a part of this specification, illustrate embodiments of the invention and together with the description serve to explain the principles of the invention and not to limit the invention. In the drawings:

FIG. 1 is a flow chart of the method of the present invention.

Detailed Description

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.

Referring to fig. 1, the present invention provides a technical solution: a filter pool intelligent control method based on process optimization operation comprises the following steps of firstly, installing a detector; step two, installing a controller; step three, equipment connection; step four, programming; step five, setting parameters; step six, data acquisition; step seven, intelligent control;

in the first step, the detector installation comprises the following steps:

1) a temperature detector, a dissolved oxygen detector, a pH detector, a turbidimeter and a liquid level detector are arranged in each filter, and a back washing device is arranged in each filter;

2) installing flow detectors at an input port and an output port of the filter;

in the second step, intelligent control valves are arranged at the input port and the output port of the filter tank, and each intelligent control valve comprises a water inlet valve, a water outlet valve, a sewage discharge valve, a backflushing air inlet valve, an exhaust valve and a backflushing water valve;

in the third step, the equipment connection comprises the following steps:

1) connecting each detector with a signal input module of a computer;

2) connecting a signal output module of a computer with an input serial port of the PLC;

3) connecting the controller with an output serial port of the PLC;

in the fourth step, the programming comprises the following steps:

1) compiling a PLC control program and a PID operation program, wherein a back washing control module and a liquid level control module are designed in the PLC control program;

2) implanting a PLC control program into the PLC;

in the fifth step, the standard parameter values of all the function modules in the PLC control program are set according to the requirements, the running time of all the function modules in the PLC control program is set, and the PLC control program is updated;

in the sixth step, the detector collects the water temperature, dissolved oxygen value, pH value, turbidity value and liquid level value data of the filter tank and transmits the data to the computer;

in the seventh step, the intelligent control comprises the following steps:

1) the computer compares the water temperature, the dissolved oxygen value, the pH value, the turbidity value and the liquid level value of the filter with set standard values to obtain deviation signals;

2) obtaining an output signal after PID operation of the deviation signal;

3) the output signal is transmitted to a PLC, the PLC generates a control signal to control an intelligent control valve, and the liquid inlet quantity and the liquid outlet quantity are controlled by adjusting the opening and closing degree of the valve;

4) the PLC program continuously operates, all modules are sequentially and circularly started, the filter tank is intermittently backwashed, and the backwashing process is as follows: closing the water inlet valve for water filtration, closing the clear water outlet valve when the water level is reduced to a set backflushing water level, opening the wastewater drain valve, closing the exhaust valve after the signal of the drain valve is in place, opening the backflushing air inlet valve, and starting the fan for air flushing; after the air flushing is finished, a backflushing water inlet valve is opened, a water pump is started, and air-water mixed flushing is carried out; after the flushing is finished, closing the fan, closing the backflushing air inlet valve, opening the exhaust valve and flushing with single water; after the flushing is finished, the backflushing water inlet valve is closed, the backflushing water pump is closed, the waste water discharge valve is closed, the filtered clean water valve is opened after the water inlet valve is opened, and when the water level rises to the filtering constant water level, the normal filtering procedure is carried out.

Based on the above, the invention has the advantages that the PLC is utilized to carry out automatic control, the intelligent degree is improved powerfully, the unmanned management is realized, the flexibility is high, the editability is strong, the operation state of the equipment can be adjusted rapidly only by changing the control parameters through the computer, the application field of the invention is wide, the invention is suitable for the filter tanks with various functions, and the automation degree of the filter tanks is improved.

It is noted that, herein, relational terms such as first and second, and the like may be used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Also, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus.

Finally, it should be noted that: although the present invention has been described in detail with reference to the foregoing embodiments, it will be apparent to those skilled in the art that changes may be made in the embodiments and/or equivalents thereof without departing from the spirit and scope of the invention. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.