KR20090054607A - Electromotion type valve apparatus for restoration of power failure - Google Patents

Abstract

An electric-powered valve apparatus for the power outage recovery is provided to control the flow of fluid smoothly by safely opening and closing a valve or rotating the valve at location value which is set up in advance. An electric-powered valve apparatus(100) comprises a motor(70), a valve position sensor(90), a data storage module(20), a panel(60), an I/O controller(110), a power supply unit(180) and secondary cell unit(220). The data storage module stores position data. The panel comprises a display(50), a valve closing switch(30), and a valve opening switch(40). The I/O controller is connected to a microprocessor(10) and performs the input/output control. The panel comprises a forward/reverse direction controller(130), an external terminal(120), a power supply unit(150), a power outage detecting circuit(170) and a power stabilizing circuit(160). The secondary cell unit comprises a charge circuit(190), and a secondary cell(200) and a DC/DC converter(210). The charge circuit is connected to the secondary battery. The DC/DC converter supplies the drive power of the motor.

Description

Electromotive type valve apparatus for restoration of power failure

The present invention relates to an electric valve device used to control the inflow and outflow of fluids such as water flow, flow rate, gas and air during power outage, and more particularly, a recovery power is applied to move the valve to a safely set position during power outage. It relates to an electric valve device for electrostatic recovery.

In general, the electric valve device is to interrupt the flow of the fluid by the electrical supply, when a power failure occurs, because the flow of fluid is continuously supplied in the state of the electrostatic state, a lot of risks are caused, but the valve is closed by the spring or spring spring elasticity Or by operating the switch or valve for switching the polarity of the motor by manual operation, but the elasticity is released due to long-term use or aging often malfunctions.

In addition, according to the prior art of the "electric valve automatic closing device at the time of power outage" of the Republic of Korea Patent Publication No. 10-0198098 (June 15, 1999) as shown in Figure 1 to improve such a malfunction, A forward and reverse motor 30 connected to the valve to open and close the valve by the forward and reverse rotation; A dog provided at intervals of 180 degrees at a predetermined position of the central shaft side of the reduction gear group so as to be connected with the reverse rotation motor 30 and the reduction gear group so that the rotation may be performed in reverse with the rotation of the reverse rotation motor 30; A limit switch installed at the forward rotation completion point of the dog so as to contact the completion point of the forward rotation of the dogs to block the circuit line; A limit switch installed at the reverse rotation completion point of the dog so as to contact the completion point of the reverse rotation of the dogs and block the circuit line; A relay RY for turning off each contact switch to supply power from the capacitor when the main power is cut off in parallel with the power supply circuit; A constant voltage generator circuit 40 connected to a power line in parallel with the relay RY to supply a DC voltage to a motor; A reverse voltage prevention diode (D) and a capacitor (C) connected in parallel with the constant voltage generating circuit 40 to charge a predetermined voltage in one direction, and switching to provide a constant voltage directly to the motor when power is supplied to the relay RY. And relay contact switches S1 and S2 which are switched to provide the motor with the voltage charged in the capacitor C when the relay RY is off; The limit switch is connected between the node of the diode (D) and the input circuit of the motor (3) to induce power cut off after forward rotation, and is connected between the positive end of the capacitor (C) and the motor (30) to induce power cut off after reverse rotation. It consists of the contact parts (L1, L2) to prevent the loss of flow rate by automatically closing the valve when a power failure occurs, but by controlling the motor only with a small amount of current charged in the capacitor, the motor stops during operation There was a problem.

In addition, in order to prevent the valve from being locked due to the malfunction and power failure as described above, as shown in Figure 2 of the Korean Utility Model Publication No. 1999-0018892 (published June 5, 1999) According to the solenoid valve having a function of preventing return and manual opening / closing operation, the valve body having the inlet 2 and the outlet 4 is provided between the inlet 2 and the outlet 4 provided inside the valve body. A diaphragm 8 for opening and closing the valve, a manual operation lever 56 provided on one side of the upper portion of the valve body, a plunger 34 linearly moved by an electromagnetic force generated in the coil, and movement of the plunger 34. It consists of an elastic member that resists the resistance, a permanent magnet 52 for maintaining the plunger 34 by magnetic force, and a push button switch 54 for converting the polarity of the electromagnetic force generated in the coil. If this occurs, open the diaphragm (8) It keeps in a lean state, and if there is a problem in the valve is to rotate the manual control lever 56, the permanent magnet 52 to maintain only a certain state of the valve or to control the valve by manual operation Therefore, there was a problem in that the valve can not be moved to the desired position during power failure.

The present invention has been made in order to solve the above problems, the object of the present invention is to move to the set position value of the valve in the event of a power failure to safely control the opening and closing of the valve or to supply a certain amount of fluid.

The present invention provides a microprocessor (MPU), which is a central processing unit for controlling or processing input / output signals, and a data storage unit (EEPROM) for storing processed data, a display, and a valve opening switch. A panel portion comprising a valve closing switch, a motor control drive connected to the microprocessor to rotate a motor to control opening / closing of a valve (not shown), and a valve position sensor for detecting a position of the valve. An electric valve device, an I / O control unit connected to the microprocessor for input / output control, a power supply unit, and a secondary battery unit is characterized in that it is made.

In addition, the I / O control unit is characterized in that the forward / reverse control unit for controlling the opening / closing of the motor is connected to the external terminal, or the power line communication control unit for commanding the control direction of the motor by the power line communication method is connected to the external terminal. do.

The power supply unit may include a power input unit, a power failure detection circuit unit, and a power stabilization circuit unit.

The secondary battery unit is characterized by consisting of a DC / DC converter for generating a boosting power for the charging circuit unit, the secondary battery, the motor drive.

The present invention smoothly controls the flow of fluid so that water flow, flow rate, gas and air pass through a certain amount by moving to the open / closed state of the valve in case of power failure to securely control the opening and closing of the valve or rotating the valve to a preset position value. It is effective.

Hereinafter, exemplary embodiments of the present invention will be described in detail with reference to the accompanying drawings.

Figure 3 is a block diagram of the electric valve device for electrostatic recovery according to the present invention.

As shown, a microprocessor 10 which is a central processing unit for controlling or processing an input / output signal, a data storage unit 20 connected to the microprocessor 10 to read or write data, and a microprocessor ( 10 is connected to the panel closing switch 30, the valve opening switch 40 is provided with a panel 50 consisting of a display 50 which is provided to enable manual operation and the status indicator of the valve (not shown), and Connected to the microprocessor 10 to the motor control drive 80 for rotating the motor 70 to control the opening / closing of the valve and the valve position sensor 90 for detecting the position of the motor 70 or valve The electric valve device 100 is configured, an I / O control unit 110 connected to the microprocessor 10 to perform input / output control, and an external connection between the I / O control unit 110 and the external terminal unit 120. Open / close signal of the motor 70 input from Power line communication for receiving the valve opening and valve opening input signal is connected to the forward / reverse control unit 130 for receiving the immersion and valve opening input signal, or between the I / O control unit 110 and the external terminal 120 The controller 140 is connected.

In addition, the external terminal 120 is a power supply unit consisting of a power stabilization circuit unit 160 is connected to the power supply unit 150 to supply a stable power and a power failure detection circuit unit 170 is connected to the power supply unit 150 to detect the power failure. 180 powers the system.

At this time, it is connected to the power stabilization circuit unit 160 to be charged to the secondary battery 200 via the charging circuit unit 190, is connected to the secondary battery 200 to boost the power to the driving power of the motor 70 It consists of a secondary battery unit 220 composed of a DC / DC converter (210).

Looking at the operation state of the electrostatic recovery electric valve device 230 according to the present invention as follows.

When power is input through the external terminal unit 120, the power stabilization circuit unit 160, which is supplied to the power supply unit 150 to operate the blackout sensing circuit unit 170 for sensing blackout and supplies stable power, is operated. do. Here, the power generated from the power supply unit 150 is supplied to the motor driving power, and the stable power generated from the power stabilization circuit unit 160 is supplied to the system power. In addition, the power generated by the power stabilization circuit unit 160 is supplied to the charging circuit unit 190 is supplied to the secondary battery 200 as a charging power.

The power failure detection circuit unit 170 detects the presence or absence of power supply 0 volts (VOLT), when the system is operated by the supplied power, the microprocessor 10 is set the position of the electric valve device 100 in case of power failure The value, that is, the opening / closing specific position setting value of the valve is stored in the data storage unit 20.

At this time, when the microprocessor 10 starts to operate, the microcontroller receives the closing / opening / opening / closing command of the valve input to the external terminal 120 from the forward / reverse control unit 130 or the power line communication control unit 140. The control signal is supplied to the I / O controller 110 connected to the processor 10.

At this time, the input control signal is displayed on the display 50 of the panel unit 60, and also receives a manual signal from the valve closing switch 30 and the valve opening switch 40 to close / open the valve. These closing / opening, opening / closing commands are all displayed on the display 50. The closing / opening command signal generated at this time rotates the motor 70 of the electric valve device 100 connected to the microprocessor 10 to open and close the valve at a specific position.

However, when a power failure is detected and a power failure is detected in the power failure detection circuit unit 170, that is, the power supply voltage becomes zero potential (VOLT), the microprocessor 10 is charged with a secondary battery of the secondary battery unit 220 that is being charged. 200) to switch to the reserve system power. In addition, the DC / DC converter 210 is operated to boost the motor driving power. And the motor 70 is operated by reading the movement setting value of the electric valve device 100 stored in the data storage unit 20 at the time of system initialization from the data storage unit 20. However, even during a power failure, the valve closing switch 30 or the valve opening switch 40 of the panel unit 60 can be opened and closed by a manual operation signal.

Figure 4 is a flow chart showing the operating state of the electrostatic recovery and electric valve of the electrostatic recovery electric valve device according to the present invention.

First, when power is supplied (S10), system initialization is started and the input information is stored in the data storage unit. At this time, the stored data value has a set value at which the electric valve device should be operated in case of power failure. That is, it is stored to open and close the valve by the open state of the valve, the closed state of the valve, and a specific amount. When the system operates, it detects a power failure state (S20). When power is supplied, power is supplied to the entire system. (S30)

Then, power is supplied to the motor (S40), and the secondary battery is charged. (S50)

Check valve position (S60) to display the valve position and status indication on the panel (S70) and check the manually operated valve operation switch (S80) check the forward / reverse control signal (S90) When the power line communication control signal is checked (S100), when the forward or reverse rotation signal of the motor is input (S110), the forward or reverse rotation of the motor is performed (S120) and ends. However, if there is no forward or reverse rotation signal of the motor (S110) is terminated immediately.

On the contrary, when a power failure is sensed in the power failure detection (S20), it is connected to the charged secondary battery (S130). At this time, the power generated from the secondary battery is supplied to the system as a power source (S140). Prepare to carry out the command (S150).

The DC / DC converter is operated to boost the driving power of the motor (S160). When the power is supplied to the motor, the valve is opened or closed by the set value of the valve, that is, the valve closed state and the specific amount during power failure. (S170).

In addition, when the valve operation switch is checked (S180) and a manual operation input is generated, the motor rotates forward or reverse (S190) and terminates safely so that the set value of the valve, i.e., the valve is opened, is restored during power failure. Operate the electric valve device to open and close the valve and the valve by the specified amount.

1 is a circuit diagram of a conventional electric valve automatic closing device.

2 is a circuit diagram showing an operation state of a conventional solenoid valve.

Figure 3 is a block diagram of the electric valve device for electrostatic recovery according to the present invention.

Figure 4 is a flow chart showing the operating state of the electrostatic recovery and electric valve of the electrostatic recovery electric valve device according to the present invention.

<Description of the code for the main part>

10: microprocessor 20: data storage unit

30: valve closing switch 40: valve opening switch

50: display 60: panel portion

70: motor 80: motor control drive

90: valve position sensor 100: electric valve device

110: I / O control unit 120: external terminal unit

130: forward / reverse control unit 140: power line communication control unit

150: power supply unit 160: power stabilization circuit unit

170: power failure detection circuit 180: power supply

190: charging circuit 200: secondary battery

210: DC / DC converter 220: secondary battery unit

230: electric valve device for electrostatic recovery

Claims (2)

Is connected to the motor control drive 80 to the electric valve device 100 consisting of a motor 70 having a rotational force and a valve position sensor 90 for the rotation of the motor 70 or the position detection of a valve (not shown) In The electric valve device 100 is connected to the microprocessor 10 for controlling the forward and reverse direction, and is connected to the microprocessor 10 to move to the open / closed state of the valve or to a specific positioning value at the time of power failure Data storage unit 20 for storing the position data, and the display 50 is connected to the microprocessor 10 and the valve state indicator of the valve and the valve closing switch 30 and the valve opening switch 40 An I / O control unit 110 connected to the panel unit 60, the microprocessor 10 to perform input / output control, and an I / O control unit 110 connected to the opening / closing signal, that is, valve clamping and valve opening. A forward / reverse control unit 130 receiving an input signal is connected between the external terminal unit 120, and the power supply unit 150 connected to the external terminal unit 120 is a power failure detection circuit unit 170 for detecting a power failure state and For stable power supply A power supply unit 180 connected to the power stabilization circuit unit 160 and a charging circuit unit 190 connected to the power stabilization circuit unit 160 are connected to the secondary battery 200 and connected to the secondary battery 200. The electric valve device for electrostatic recovery, characterized in that consisting of a secondary battery unit 220 consisting of a DC / DC converter 210 for supplying the driving power of the motor (70). The method of claim 1, The power line communication control unit 140 is connected between the I / O control unit 110 and the external terminal unit 120 to receive an opening / closing signal of the motor 70, that is, a valve clamp and a valve opening input signal, by power line communication. Electric valve device for electrostatic recovery.

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