阅读说明：本技术 基于smart 3的液控蝶阀控制装置的安装及控制方法 (Installation and control method of hydraulic control butterfly valve control device based on SMART 3 ) 是由 孙晓 赵宇 袁斌彬 成红兵 芦晓丽 于 2021-10-25 设计创作，主要内容包括：一种基于SMART 3的液控蝶阀控制装置的安装及控制方法。现有技术阀门控制器常导致供热蝶阀故障失控,故障后不能得到快速有效处理,影响汽轮机供热蝶阀安全运行。本发明组成包括：支撑柱连接装置(1)、EMC器件,所述的支撑柱连接装置为框架结构,其下方框架内对插式安装有端子B(3),所述的框架中间位置对插式安装有端子A(2),所述的支撑柱连接装置端面安装有控制面板(4)并通过螺栓连接,所述的端子A、所述的端子B分别与电气系统电连接,所述的EMC器件的信号输入端口与限流电阻的二极管钳位电路(5)连接,所述的限流电阻的二极管钳位电路与信号放大回路(6)之间安装有双电源切换开关(7)。本发明用于基于SMART 3的液控蝶阀控制装置。(An installation and control method of a hydraulic control butterfly valve control device based on SMART 3. The prior art valve controller often causes the heat supply butterfly valve trouble out of control, can not obtain quick effective processing after the trouble, influences steam turbine heat supply butterfly valve safe operation. The invention comprises the following components: support column connecting device (1), EMC device, support column connecting device be frame construction, install terminal B (3) to inserting the formula in its below frame, the frame intermediate position install terminal A (2) to inserting the formula, support column connecting device terminal surface install control panel (4) and pass through bolted connection, terminal A terminal B be connected with the electrical system electricity respectively, EMC device's signal input port and current-limiting resistance's diode clamp circuit (5) be connected, current-limiting resistance's diode clamp circuit and signal amplification circuit (6) between install dual supply change over switch (7). The invention is used for the hydraulic control butterfly valve control device based on SMART 3.)

1. A hydraulically controlled butterfly valve controlling means based on SMART 3, its constitution includes: support column connecting device, EMC device, characterized by: support column connecting device be frame construction, install terminal B3 to the formula of inserting in its below frame, the frame intermediate position install terminal A to the formula of inserting, support column connecting device terminal surface install control panel 4 and pass through bolted connection, terminal A terminal B be connected with electric system electricity respectively, EMC device's signal input port and current-limiting resistance's diode clamp circuit be connected, current-limiting resistance's diode clamp circuit and signal amplification circuit between install dual supply change over switch.

2. The installation and control method of the SMART 3-based hydraulic control butterfly valve control device as claimed in claim 1 is characterized in that: the method comprises the following steps:

(1) firstly, a dual-power transfer switch and a power supply instruction are installed on a control device, so that the frequency of switching/transmitting power of a power supply cabinet entering an electronic device is reduced, and wrong intervals and wrong operation are prevented;

(2) the method comprises the following steps that a PDI board, a CPU board and a board back board bus type installation mode of an AIO board of a power supply of a valve actuating mechanism controller are installed in a laminated type frame mode, the anti-vibration performance of the controller is enhanced, the power supply and signals of the controller are connected through a terminal A and a terminal B which are connected in an opposite insertion mode, the installation space in a control cabinet is enlarged, and the heat dissipation space of electronic elements for heat dissipation and signal transmission are increased;

(3) the control system is adaptive to the environment temperature and is set to be 85 ℃, the display screen is an OLED screen with the working temperature of-40-85 ℃, the DC/DC module is TEN5 with the working temperature of-40-85 ℃, the power of an input loop of an AIO board amplifier is improved to 100%, the voltage resistance of an input port circuit of a position sensor signal is improved to 32VDC from 5VDC, the risk that a feedback signal is accidentally over-pressurized to damage a controller port is reduced, and EMC devices are arranged on a controller power supply and each input port to improve the electromagnetic interference capability of anti-static discharge, radio frequency interference and a power frequency magnetic field;

(4) the parameter power of the input channel element of the AIO board AD202KN amplifier is improved, the parameter power is changed from conventional 1/4W to 1/2W, and the operational reliability of the amplifier is improved;

(5) a diode clamping circuit with a current limiting resistor is arranged at a signal input port, so that the protection of an in-phase end of an operational amplifier is enhanced, and the voltage withstanding capability of the input port of the controller is improved.

Technical Field

The invention relates to the technical field of heat supply butterfly valves of steam turbines, in particular to an installation and control method of a hydraulic control butterfly valve control device based on SMART 3.

Background

The valve controller in the prior art has obvious equipment degradation trend, often causes the failure of the heat supply butterfly valve out of control during operation, can not be quickly and effectively processed after the failure of the valve controller, and the safe operation of the heat supply butterfly valve of the steam turbine is seriously influenced due to poor heat dissipation and vibration resistance of electronic components of a controller box body and the like.

Disclosure of Invention

The invention aims to provide an installation and control method of a hydraulic control butterfly valve control device based on SMART 3, which effectively improves the performance of a valve control system and improves the operation reliability of a heat supply butterfly valve of a steam turbine by modifying the installation structures of plates such as a PDI card, a CPU card, an AIO card and the like of the valve hydraulic actuating mechanism control system, optimizing and designing a plate circuit and optimizing and selecting types of electronic elements, additionally arranging a power supply operation and display device and the like.

The above purpose is realized by the following technical scheme:

a hydraulically controlled butterfly valve controlling means based on SMART 3, its constitution includes: support column connecting device, EMC device, characterized by: support column connecting device be frame construction, install terminal B to inserting the formula in its below frame, the frame intermediate position install terminal A to inserting the formula, support column connecting device terminal surface install control panel and pass through bolted connection, terminal A terminal B be connected with the electrical system electricity respectively, EMC device's signal input port and current-limiting resistance's diode clamp circuit be connected, current-limiting resistance's diode clamp circuit and signal amplification circuit between install dual supply change over switch.

A mounting and control method of a hydraulic control butterfly valve control device based on SMART 3 comprises the following steps:

(1) firstly, a dual-power transfer switch and a power supply instruction are installed on a control device, so that the frequency of switching/transmitting power of a power supply cabinet entering an electronic device is reduced, and wrong intervals and wrong operation are prevented;

(2) the method comprises the following steps that a PDI board, a CPU board and a board back board bus type installation mode of an AIO board of a power supply of a valve actuating mechanism controller are installed in a laminated type frame mode, the anti-vibration performance of the controller is enhanced, the power supply and signals of the controller are connected through a terminal A and a terminal B which are connected in an opposite insertion mode, the installation space in a control cabinet is enlarged, and the heat dissipation space of electronic elements for heat dissipation and signal transmission are increased;

(3) the control system is adaptive to the environment temperature and is set to be 85 ℃, the display screen is an OLED screen with the working temperature of-40-85 ℃, the DC/DC module is TEN5 with the working temperature of-40-85 ℃, the power of an input loop of an AIO board amplifier is improved to 100%, the voltage resistance of an input port circuit of a position sensor signal is improved to 32VDC from 5VDC, the risk that a feedback signal is accidentally over-pressurized to damage a controller port is reduced, and EMC devices are arranged on a controller power supply and each input port to improve the electromagnetic interference capability of anti-static discharge, radio frequency interference and a power frequency magnetic field;

(4) the parameter power of the input channel element of the AIO board AD202KN amplifier is improved, the parameter power is changed from conventional 1/4W to 1/2W, and the operational reliability of the amplifier is improved;

(5) a diode clamping circuit with a current limiting resistor is arranged at a signal input port, so that the protection of an in-phase end of an operational amplifier is enhanced, and the voltage withstanding capability of the input port of the controller is improved.

Has the advantages that:

1. the invention mainly provides an installation and control method of a hydraulic control butterfly valve control device based on SMART 3, EMC devices are added on a power supply and each input port of the structure and the method, the capacity of various electromagnetic interferences such as electrostatic discharge resistance, electric fast pulse group resistance, radio frequency interference resistance, power frequency magnetic field resistance and the like of a controller is improved, the device is put into operation for nearly one year after installation and debugging, the heat supply butterfly valve is adjusted to accurately work and has a normal and simple structure, the heat supply butterfly valve controller is optimized and modified based on the existing conditions, the performance deficiency of the controller is improved through optimization, meanwhile, a hydraulic system with the reliability meeting the field requirement is reserved, the main problems are solved with smaller investment, and the heat supply reliable work of a steam turbine butterfly valve is ensured.

2. The invention effectively improves the safety and reliability of the unit, thereby ensuring the economic benefit of the unit and maintaining the good social image of enterprises.

3. The invention effectively improves the performance of the valve control system and improves the operation reliability of the heat supply butterfly valve of the steam turbine by modifying the mounting structures of the plates such as a PDI card, a CPU card, an AIO card and the like of the valve hydraulic actuating mechanism control system, optimizing and designing the circuit of the plates, optimizing and selecting the type of electronic elements, additionally arranging a power supply operation and display device and the like.

4. The control cabinet is additionally provided with the double-power-supply changeover switch and the power supply indication, so that the isolation operation can be conveniently executed on site, the frequency of switching/transmitting power supply of the power supply cabinet between electronic equipment is reduced, and wrong intervals and wrong operation risks are prevented.

5. The invention improves the performance deficiency of the controller by optimization, simultaneously keeps the hydraulic system with reliability meeting the field requirement, solves the main problems with less investment, saves the cost and ensures the reliable work of the heat supply butterfly valve of the steam turbine.

6. The invention changes the back board bus type installation mode of the power PDI board, the CPU board, the AIO board and other boards of the valve actuating mechanism controller into the laminated frame installation, the fixed structure is more reasonable, the anti-vibration performance of the controller is enhanced, the power supply and the signal of the controller are connected through the reliable plug-in terminal, the installation space in the control cabinet is simplified and enlarged, and the heat dissipation of electronic elements and the reliable transmission of the signal are facilitated.

7. The invention improves the adaptive environmental temperature of the control system in the prior art from 65 ℃ to 85 ℃, improves the shock resistance, improves the power of the input loop of the AIO board amplifier by 100 percent, improves the input port circuit of the position sensor signal, improves the voltage resistance of the port from 5VDC to 32VDC, adds EMC devices on the controller power supply and each input port, and improves the capability of resisting various electromagnetic interferences such as electrostatic discharge, radio frequency interference, power frequency magnetic field and the like.

8. The size of the control box body is increased, the content in the cabinet is increased by 30%, the internal heat dissipation condition is improved, the arrangement of elements in the cabinet is optimized, the cabinet is concise and compact, the maintenance and the operation are more convenient, and meanwhile, the control panel is arranged on the outer surface of the cabinet, so that the visual operation is convenient.

Description of the drawings:

FIG. 1 is a schematic structural diagram of the present invention.

Fig. 2 is a left side view of fig. 1.

Fig. 3 is a schematic diagram of the connection of the signal input port of the present invention.

FIG. 4 is a schematic diagram of an in-cabinet electronic control backplane of the control device of the present invention.

Wherein: 1. Support column connecting device, 2, terminal A, 3, terminal B, 4, control panel, 5, current-limiting resistor's diode clamp circuit, 6, signal amplification return circuit, 7, duplicate supply change over switch.

The specific implementation mode is as follows:

example 1:

a hydraulically controlled butterfly valve controlling means based on SMART 3, its constitution includes: support column connecting device 1, EMC device, characterized by: support column connecting device be frame construction, install terminal B3 to inserting the formula in its below frame, the frame intermediate position install terminal A2 to inserting the formula, support column connecting device terminal surface install control panel 4 and pass through bolted connection, terminal A terminal B be connected with the electrical system electricity respectively, EMC device's signal input port be connected with current-limiting resistance's diode clamp circuit 5, current-limiting resistance's diode clamp circuit and signal amplification return circuit 6 between install dual supply change over switch 7.

Example 2:

an installation and control method of the SMART 3-based hydraulic control butterfly valve control device in the embodiment 1-2 is used, and the method comprises the following steps:

(1) firstly, a dual-power transfer switch and a power supply instruction are installed on a control device, so that the frequency of switching/transmitting power of a power supply cabinet entering an electronic device is reduced, and wrong intervals and wrong operation are prevented;

(2) the method comprises the following steps that a PDI board, a CPU board and a board back board bus type installation mode of an AIO board of a power supply of a valve actuating mechanism controller are installed in a laminated type frame mode, the anti-vibration performance of the controller is enhanced, the power supply and signals of the controller are connected through a terminal A and a terminal B which are connected in an opposite insertion mode, the installation space in a control cabinet is enlarged, and the heat dissipation space of electronic elements for heat dissipation and signal transmission are increased;

(3) the control system is adaptive to the environment temperature and is set to be 85 ℃, the display screen is an OLED screen with the working temperature of-40-85 ℃, the DC/DC module is TEN5 with the working temperature of-40-85 ℃, the power of an input loop of an AIO board amplifier is improved to 100%, the voltage resistance of an input port circuit of a position sensor signal is improved to 32VDC from 5VDC, the risk that a feedback signal is accidentally over-pressurized to damage a controller port is reduced, and EMC devices are arranged on a controller power supply and each input port to improve the electromagnetic interference capability of anti-static discharge, radio frequency interference and a power frequency magnetic field;

(4) the parameter power of the input channel element of the AIO board AD202KN amplifier is improved, the parameter power is changed from conventional 1/4W to 1/2W, and the operational reliability of the amplifier is improved;

(5) a diode clamping circuit with a current limiting resistor is arranged at a signal input port, so that the protection of an in-phase end of an operational amplifier is enhanced, and the voltage withstanding capability of the input port of the controller is improved.