KR101206330B1 - Autonomous positioner and auto-tuning smart valve control system using the same - Google Patents
Autonomous positioner and auto-tuning smart valve control system using the same Download PDFInfo
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- KR101206330B1 KR101206330B1 KR20100085748A KR20100085748A KR101206330B1 KR 101206330 B1 KR101206330 B1 KR 101206330B1 KR 20100085748 A KR20100085748 A KR 20100085748A KR 20100085748 A KR20100085748 A KR 20100085748A KR 101206330 B1 KR101206330 B1 KR 101206330B1
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- valve
- control valve
- signal
- positioner
- control
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- General Engineering & Computer Science (AREA)
- Flow Control (AREA)
- Mechanical Engineering (AREA)
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Automation & Control Theory (AREA)
Abstract
The present invention is a self-tuning smart valve control system using an autonomous positioner, there is no need to have an external controller such as PLC or DCS has the advantage of saving installation and maintenance costs, for this purpose is to pass through the pipe installed the control valve A sensor signal processor configured to receive and process a detection signal from a sensor that detects a state of a fluid;
The loop control unit receiving the detection signal from the sensor signal processing unit and performing a calculation for determining a target opening degree value of a control valve is installed in the positioner.
Description
The present invention relates to an autonomous positioner and a self-tuning smart valve control system using the same. Specifically, a control operation for controlling a valve opening degree by receiving detection signals such as pressure, temperature, and flow rate in the positioner is performed. It includes a controller to perform automatic control of pressure, temperature, flow rate, etc. by autonomously adjusting the valve opening degree without building an external control system such as PLC (Programmable Logic Controller) or DCS (Distributed Control System). The present invention relates to an autonomous positioner and a self-tuning smart valve control system using the same.
In general, the
As shown in FIG. 1, the PLC or DCS receives a detection signal from a
Then, the
In the valve control system using the
In order to solve the above problems, the present invention is to provide an autonomous positioner and a self-tuning smart valve control system using the same that does not need to place an external controller, such as PLC or DCS, saving installation and maintenance costs. The purpose is.
In addition, the present invention does not require a control valve and an external controller such as a PLC or a DCS installed at a long distance, and the process sensor is also directly connected to a positioner located at a relatively short distance, so that the wiring structure is not complicated, thereby making the system simple and inexpensive. An object of the present invention is to provide an autonomous positioner capable of self-aligning and a self-tuning smart valve control system using the same.
In addition, an object of the present invention is to provide a self-tuning smart valve control system using an autonomous positioner that can monitor the state of the control valve, the positioner operating state, and the process control result even in a remote location.
As a means for solving the above problems, the autonomous positioner of the present invention,
A sensor signal processing unit for receiving and processing a detection signal from a process sensor for detecting a state of a fluid passing through a pipe provided with a control valve;
The loop control unit is configured to receive the detection signal from the sensor signal processing unit and perform a calculation for determining a required opening amount of a control valve.
In addition, the present invention is further provided with an LCD display for inputting the control valve opening amount target data, confirming the control state,
The loop controller is configured to determine a required opening amount of a control valve by performing calculation by reflecting the opening amount target data and the detection data input from the sensor signal processing unit.
In addition, the present invention is composed of a self-tuning smart valve control system using the autonomous positioner.
In addition, the self-tuning smart valve control system using the autonomous positioner of the present invention is installed remotely from the control valve, and further comprises a monitoring display for inputting the control valve opening amount target data, and confirming the control state.
Through the above problem solving means, the present inventors autonomous positioner and self-tuning smart valve control system using the same, the sensor signal processing unit for receiving the detection signal from the process sensor in the positioner itself and a loop controller for performing the operation control Since the process can be controlled by autonomously adjusting the valve opening without an external controller such as PLC or DCS, installation cost is reduced, process control convenience is increased through valve control, wiring complexity is reduced, and maintenance is possible. There is an advantage that the cost of repair is significantly reduced.
In addition, the present invention has the advantage of easy maintenance because it provides a monitor display unit for the computer to monitor the state of the valve, the operation state of the positioner, the process control results even at a remote location.
1 is a view showing the configuration of a valve control system using a positioner according to the prior art.
Figure 2 is a block diagram of the present inventors autonomous positioner and self-tuning smart valve control system using the same.
Preferred embodiments of the present inventors autonomous positioner and a self-tuning smart valve control system using the same will be described in detail with reference to the accompanying drawings.
2 is a block diagram of a self-tuning smart valve control system using the present inventors autonomous positioner.
As shown in FIG. 2, the present inventors autonomous positioner and a self-tuning smart valve control system using the same include a
First, the
In addition, the
The following describes
In the present invention, the
First, the valve opening
In addition, the
Next, the
In addition, the
In particular, the
In addition, the
Next, the
In addition, the LCD display 47 inputs a set value (set value) for controlling the
In addition to the above-described configuration, the
In this regard, first, the valve opening
In addition, the valve opening degree request
In addition, one of the other features of the present invention is to include a monitor display unit (51).
The
Through such a configuration, the present invention enables the control of the
The operating process of the present invention configured as described above will be described in detail.
First, the sensor
Then, the
The converted digital detection signal is transmitted to the
The
In addition, the adjusted pressure, temperature, flow rate, and the like are displayed on the
On the other hand, the set value (opening amount target data) and P, I, D gain required for the process control are set directly on the
10: control valve 20: (external) controller
30: process sensor 40: positioner
41: valve opening signal processor 42: sensor signal processor
43: signal conversion unit 44: microprocessor
45
47: LCD display part 48: valve opening amount transmission part
49: communication unit 50: valve opening request signal processing unit
51: supervision display unit 60: loop control unit
Claims (4)
Sensor signal processing unit for receiving the detection signal detected from the process sensor for detecting the state of the fluid passing through the pipe with a control valve,
A signal conversion unit for converting an analog signal, which is a detection signal input to a valve opening signal processing unit and a sensor signal processing unit, into a digital signal by a call command from a microprocessor to be described later, and transmitting the same to a microprocessor;
Processes the signal input from the signal conversion unit, and performs calculation to control the control valve from the control valve opening amount data and the data detected by the process sensor is converted into a digital signal from the signal conversion unit to perform the operation of the control valve A microprocessor having a loop controller for calculating and determining required opening amount data;
A valve driving unit generating power to adjust the opening amount of the control valve by receiving the required opening degree data calculated and calculated from the microprocessor,
A power supply for supplying power to the positioner;
Characterized in that the LCD display unit for inputting the opening amount target data, which is a set value for controlling the control valve, or for visually displaying the operation control result by the microprocessor so that the operator can check
Autonomous positioner
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
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KR20100085748A KR101206330B1 (en) | 2010-09-01 | 2010-09-01 | Autonomous positioner and auto-tuning smart valve control system using the same |
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KR20100085748A KR101206330B1 (en) | 2010-09-01 | 2010-09-01 | Autonomous positioner and auto-tuning smart valve control system using the same |
Publications (2)
Publication Number | Publication Date |
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KR20120022299A KR20120022299A (en) | 2012-03-12 |
KR101206330B1 true KR101206330B1 (en) | 2012-11-29 |
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KR20100085748A KR101206330B1 (en) | 2010-09-01 | 2010-09-01 | Autonomous positioner and auto-tuning smart valve control system using the same |
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Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
KR101853325B1 (en) * | 2016-04-01 | 2018-05-10 | 주식회사 코젠 | Automatic control valves using the Internet of Things |
Families Citing this family (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN112161106A (en) * | 2020-09-24 | 2021-01-01 | 常州工学院 | Control system and control method of valve |
Citations (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP2007206936A (en) | 2006-02-01 | 2007-08-16 | Ckd Corp | Flow rate control system |
KR100971995B1 (en) * | 2009-10-08 | 2010-07-23 | 김태곤 | Apparatus for automatically reducing pressure of water supply |
-
2010
- 2010-09-01 KR KR20100085748A patent/KR101206330B1/en active IP Right Grant
Patent Citations (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP2007206936A (en) | 2006-02-01 | 2007-08-16 | Ckd Corp | Flow rate control system |
KR100971995B1 (en) * | 2009-10-08 | 2010-07-23 | 김태곤 | Apparatus for automatically reducing pressure of water supply |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
KR101853325B1 (en) * | 2016-04-01 | 2018-05-10 | 주식회사 코젠 | Automatic control valves using the Internet of Things |
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Publication number | Publication date |
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KR20120022299A (en) | 2012-03-12 |
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