KR200218142Y1 - control device of water supply valve for boiler - Google Patents

Abstract

The present invention relates to a water supply valve control device for a boiler, and the main power supply unit 71, the electrostatic detection unit 72, the auxiliary power supply unit 73, the water level sensor 74, the controller 75 to the water level sensor 74 ) Is connected to the motor driving circuit unit 76 which converts a predetermined voltage by the controller 75 to apply power, and to a control signal of the controller 75 received through the motor driving circuit unit 76. By connecting the one-way motor 10 to rotate in a predetermined direction, connecting the case 20 to enable the one-way motor 10 is fixedly connected, the projection rotating body is supported and rotated inside the case 20 30 and connecting the contact switch 40 for outputting an electrical signal while switching the projection rotor 30 to the contact of the projection, and the projection rotor penetrating outside the case 20 ( 30) can be closely connected to control the flow of water supply From the configuration consisting of a rotary ball 60 to open and close the passage in the water supply pipe to solve the user's anxiety about the power failure of the boiler and to reduce the torque applied to the motor to transfer the rotational force of the motor to the rotary ball of the water supply valve As a result, the water pressure in the water supply valve is maintained smoothly, thereby preventing foreign matters from being stacked and solidified inside the water supply valve, and at the same time, improving the reliability of the product.

Description

Control device of water supply valve for boiler

The present invention relates to a water supply valve control device for a boiler, and more particularly, a projection rotating body is connected to a rotating shaft of the motor so that the rotational force of the motor can be directly transmitted to the water supply valve side, and the contact switch is turned on / off by the rotating projection body. At the same time, the rotary ball of the water supply valve can be rotated, and if the main power supply is cut off, the motor is stopped during the rotation, and the detector is connected to detect the power failure so that the water is not discharged to the room. The present invention relates to a water supply valve control device for a boiler that removes anxiety of a user and reduces torque applied to a motor so that the rotational force of the motor is transmitted to the rotary ball of the water supply valve so that water supply can be cut off or supplied quickly.

In general, supply pipes for supplying externally supplied oil, air, water, etc. to desired places and devices are equipped with solenoid valves that allow the oil, air, water, etc. to be blocked or opened to induce flow. .

These solenoid valves allow the electromagnet to pull up the valve shaft blocking the valve tube through the flow of the applied current so that the fluid flows as the blocked valve tube is opened or the applied power is cut off, and at the same time the current of the coil surrounding the electromagnet When the flow of the valve is blocked and the valve shaft is lifted, the valve tube, which is opened by the valve shaft, is blocked again so that no more fluid flows in the valve tube.

However, these solenoid valves are built directly inside the pipe shaft, so when the water pressure is small, small foreign matter contained in the water flows to the valve shaft and becomes hardened and stacked, causing the valve tube to be clogged slowly. Unwanted, such a valve shaft or valve tube has a problem of reducing the reliability of the product and at the same time shorten the life of the valve tube due to the chemical reaction through the laminated solidified foreign matter to corrode and break.

The valve for controlling the water supply devised to solve the above problems is to be able to adjust the water pressure of the valve while being in contact with the valve tube as described with reference to the accompanying Figure 1 as follows.

1 is a configuration diagram of a water supply control valve for a gas boiler.

As shown in FIG. 1, a conventional water boiler control device for a gas boiler connects a water tank capable of temporarily storing water supplied from the outside into a gas boiler, and connects a supply pipe for supplying water to the water tank.

The ball is connected to block or supply the water supply to the supply pipe, and the ball shaft is fixedly connected to the ball shaft so as to be interlocked, and a fixing frame for forming a support sphere is formed by forming a plurality of protrusions at the center and bending one side. Connecting the rotating body, the spring is connected to one side of the fixing frame so that the rotation of the rotating body can be limited, and the driving gear is connected to the upper surface of the fixing frame of the rotating body to rotate, and by the rotation of the rotating body It is composed of a motor that connects a contact switch for contacting the switch to cut off the power by contacting the switch, and rotates the drive gear while forward and reverse rotation by an on or off signal of the contact switch.

The drive gear has a configuration formed by forming a corresponding projection to be in contact with the projection formed on the upper surface of the fixed frame of the rotating body in close contact with the bottom surface.

In addition, the motor is connected to the inverter to output the rotation state as an electrical signal, the signal input from the inner is connected to a controller for determining or counting the pulse correction direction, the controller is connected to the contact switch or inverter After calculating the input signal by correcting the error value to the amplifier and calculates the connection to the motor drive circuit for outputting the appropriate voltage so that the motor rotates.

In the conventional gas boiler feed valve control device configured as described above, the feed valve for distributing the heated water evenly on the floor of the gas boiler is operated by the rotational force of the motor electrically and reversely rotating the ball of the water supply pipe. It rotates to control to block or supply water flowing in the water supply pipe.

The motor outputs two-phase pulse trains with different phases of 90 ° according to the rotation of the input shaft, and the rotation direction is switched from the relation of two phases. An encoder is connected to one output terminal of the motor and a load is connected to the other side. In the magnetic continuity by the permanent magnet inside, the coil is rotated armature.

Here, referring to FIG. 3, a device for controlling a motor is described. When the controller inputs an electrical signal output from a contact switch, the controller inputs the input electrical pulse signal to determine the rotation direction, The motor outputs an electric signal that the motor can rotate in the reverse direction determined by the counter.

At this time, if the controller outputs a reference value for the motor rotation speed and rotation direction, the error of the reference value is expanded through the amplifier, and the motor controller operates after correcting the enlarged error by calculating the magnitude of the error. Through the circuit portion, it is possible to properly apply the power to the motor can rotate.

In addition, the controller part feeds back and corrects the error input through the inverter to determine the direction and speed of the rotating motor, and then outputs it back to the motor. As a result, the motor controls the rotation direction and the rotation speed from the signal controlled by the controller part. You will receive.

On the other hand, such a motor is to control the rotational speed and the direction of rotation through the controller unit to adjust the water pressure in the water supply valve by interlocking the drive gear and the rotating body connected to the motor shaft.

The water pressure control of the water supply valve is to open or close the flow of water supply by rotating the drive gear that the motor is engaged with the motor shaft by the rotational force and rotating the ball in the water supply valve part from the rotating body interlocked with the rotation direction of the drive gear. .

At this time, the rotary body contacts the fixed frame formed on one side so that the rotating state of the motor or the ball rotating state of the water supply valve can be output as an electrical signal from the outside. The spring is supported on one side of the rotating body to limit the moving range of the rotating body during forward and reverse rotation so that the moving range of the rotating body is limited by the tension of the spring, thereby setting the rotational position of the ball of the water supply valve. will be.

When opening the water supply valve passage, the motor receives an appropriate voltage from the motor driver by the control signal of the controller and rotates it at a constant rotation angle, that is, 90 ° in the forward direction.

At this time, the rotating body is rotated in the induction direction of the driving gear by the rotational force of the drive gear linked with the motor shaft by the rotational force of the motor, and the rotation range is limited by the restoring force by the expansion of the spring connected to the rotating body. As the whole fixing frame contacts the contact switch, the contact switch is turned off, and the off signal of this contact switch outputs a signal for rotation completion and rotation status to the controller.

On the contrary, when the passage of the water supply valve is to be blocked, the rotation direction of the motor is switched by the control signal of the controller so that the water supply valve is closed through the rotating body.

However, in the conventional gas boiler feed valve control device, when the rotation direction of the forward and reverse rotational motor is to be changed, the normal and reverse rotations of the forward and reverse rotational motor pass through a long transient state to obtain a normal rotational force. It should be rotated at a constant speed and rotation direction as it is converted to. It is easy to generate vibration or resonance due to the characteristics of forward and reverse rotation motors, and it is easy to disassemble at high speeds. It restricts the moving range and increases the torque of the motor from the restoring force by expansion and contraction of the connected spring, so that the motor drives the drive gear and the rotating body to the torque and the restoring force of the spring for the ball rotating in the water supply valve part. As a result, the larger torque is added and a large load is applied to the motor, which requires twice the rotational force of the motor. Roneun has a problem that a significant effect on motor life by a weight torque of the motor that is not a problem and can be used as a valve to design an expensive large-capacity motor and the mechanism (part).

Another problem is that if a power failure occurs while the motor is running, the motor stops its operation due to a power failure while closing the water supply valve by the motor. Because of the overflow, the short circuit may occur even if the power is reapplied.

Another problem is that the spring for limiting the rotational range of the rotating body due to the rotational force of the motor has a problem that the reliability of the water supply valve part is lowered because the restoring force of the spring is reduced and the permanent use is impossible due to repeated contraction and expansion. .

The present invention has been made in order to solve such a conventional problem, the purpose is to connect the projection rotor to the rotating shaft of the motor so that the rotational force of the motor can be directly transmitted to the water supply valve side by the projection rotor Connect the contact switch to turn on and off at the same time to rotate the rotating ball of the water supply valve, and if the main power supply is cut off, connect the sensing part to detect the power failure so that the water is not discharged to the room because the motor is stopped during rotation. By relieving the user's anxiety about the power failure of the boiler and reducing the torque applied to the motor, the rotational force of the motor is transmitted to the rotary ball of the water supply valve so that water can be cut off or supplied quickly.

1 is a configuration diagram of a water supply control valve for a gas boiler.

2 is a block diagram of a water supply valve control device for a boiler of the present invention.

3 is a block diagram for controlling a water supply valve for a boiler of the present invention.

Code descriptions for the main parts of the drawings

10; one-way motor 20; case

30; protrusion rotating body 40; contact switch

50; water supply valve 60; rotating ball

71; main power supply unit 72; power failure detection unit

73; auxiliary power supply 74; switch sensor

75; controller 76; motor drive circuit

Hereinafter, preferred embodiments of the present invention will be described with reference to the accompanying drawings so that those skilled in the art may easily implement the present invention.

As shown in FIG. 2 or FIG. 3, the present invention relates to a device for allowing a rotational force of a motor to be directly transmitted to a water supply valve, and is connected to a main power supply 71 for supplying power, and connected to the main power supply 71. Connect the power outage detection unit 72 for detecting the interruption of the power supply, and connected in parallel to the main power supply 71 to connect the auxiliary power supply 73 for supplying auxiliary power, and is installed in the water tank for the boiler Connect the water level sensor 74 to detect the water level, initialize the internal memory by receiving the power supplied from the main power supply 71, and operates by receiving power from the auxiliary power supply 73 connected to the other input terminal when the power is cut off. Connect the controller 75 for outputting the counter control signal from the external input signal through the data set therein from the signal output from the water level sensor 74, and by the controller 75 The motor driving circuit unit 76 converts a predetermined voltage to supply power, and rotates in a predetermined direction by a control signal of the controller 75 received through the motor driving circuit unit 76 and rotates at a predetermined rotation speed. A case 20 and a case 20 for connecting the motor 10 and connecting the protrusion rotating body 30 formed with a plurality of protrusions on the outer circumferential surface of the motor 20, being closely connected to the rotary shaft of the one-way motor 10. Connect the contact switch 40 for outputting an electrical signal while switching to the contact of the projection of the projection rotor 30, and is closely connected to the projection rotor 30 penetrated outside the case 20 to supply water It consists of a rotary ball 60 to open and close the passage in the water supply pipe to control the flow of.

The rotary ball 60 is a circular to form a guide pipe so that the water supply flows therein.

Referring to the effect of the present invention configured in this way in detail as follows.

The present invention relates to a control device that can directly open and close the water supply valve for the boiler by receiving the rotational force transmitted from the rotation shaft of the motor, the motor is a one-way motor (10) that rotates in only one direction to rotate in one direction, this one-way motor ( When the 10 rotates, the protrusion rotating body 30 closely connected to the motor shaft rotates in association with each other.

The protrusion rotating body 30 has a plurality of protrusions formed on the outer circumferential surface thereof so that the protrusion touches the contact switch 40 when the rotation is turned on or off, thereby rotating the water supply valve 50 by rotating the one-way motor 10. ) Is to open and close the output of an electrical signal to the controller (75).

In addition, the protrusion rotating body 30 penetrates to the outer shell of the case 20 and is fixedly connected to the connection ball of the rotary ball 60 in the water supply valve 50 while the rotary ball 60 rotates to block the water supply flowing in the water supply valley. By supplying water to the water tank in the boiler to fill a certain level.

Here, when the water supply valve 50 is opened to fill water in the water tank in the boiler, the controller 75 initializes the internal memory by the power applied from the main power supply 71 and then detects the water level in the water tank. The electrical signal is received from the sensor 74 and compared with the memory set therein to determine whether the water level in the water tank is low or high.

At this time, when the controller 75 determines that the water is low, the controller 75 opens the water supply valve 50 in which the inside is closed to supply power suitable to the one-way motor 10 so that the one-way motor 10 can be rotated to supply water. The motor driving circuit unit 76 is to apply power to the one-way motor 10 to be applied.

The one-way motor 10 rotates the projection rotating body 30 according to the number of rotations set in the internal memory of the controller 75 to close the water supply valve 50 which is closed to directly rotate the rotary ball 60 of the water supply valve 50. It will be open.

Here, the one-way motor 10 is typically connected to a plurality of gears connected therein, the plurality of gears rotate a plurality of circuits, but the rotation axis is rotated by 90 °, so that the rotary ball 60 of the water supply valve 50 by 90 ° To be rotated.

At this time, the projection rotating body 30 is in contact with the switch of the contact switch 40 to output the rotation state to the controller 75 while rotating in conjunction with the rotation axis of the one-way motor 10 to inform the completion of the rotation.

When the water supplied to the water tank is filled to a certain level, the water level sensor 74 operates to output a signal detected by the controller 75.

At this time, the controller 75 compares the signal input from the water level sensor 74 with the memory set therein, and then outputs an electrical signal to the motor driving circuit unit 76 so that the one-way motor 10 can drive the motor driving circuit unit. The one-way motor 10 is rotated through the 76 to allow the rotary ball 60 of the water supply valve 50 to block water supply.

On the other hand, when the power of the main power supply unit 71 is cut off due to the power failure, the controller 75 detects the power cut off from the main power supply unit 71 by the power failure detection unit 72 and receives the output signal to indicate that the power failure After the determination, the auxiliary power is continuously applied to prevent the one-way motor 10 rotating while receiving power from the auxiliary power unit 73.

The auxiliary power supply 73 may be used as a battery or a high voltage capacitor capable of accumulating and discharging the power therein, and the auxiliary power supply 73 may be used selectively according to the intention of those skilled in the art.

The present invention acting as described above connects the projection rotating body to the rotating shaft of the motor so that the rotational force of the motor can be directly transmitted to the water supply valve side, and the contact switch is turned on and off by the projection rotating body at the same time rotating the rotary ball of the water supply valve. It is connected to the power supply unit, and if the main power supply is cut off, the motor is stopped during the rotation, so that the power supply unit can detect the power failure so that the water is not discharged to the room. By reducing the torque applied, the rotational force of the motor is transmitted to the rotating ball of the water supply valve, so that the water pressure in the water supply valve is maintained smoothly, thereby preventing the foreign matters from being laminated and solidified and improving the reliability of the product. Has an effect.

Claims (1)

Connected to the main power supply unit 71 for supplying power, connected to the main power supply unit 71 and connected to the power failure detection unit 72 for detecting the interruption of the power supply, and connected in parallel to the main power supply unit 71 Connect the auxiliary power supply 73 for supplying auxiliary power, connect the water level sensor 74 installed in the water tank for the boiler to detect a certain level, and receive the power supplied from the main power supply 71 to receive the internal memory. Initializes and operates by receiving the power of the auxiliary power supply 73 connected to the other input when the power is cut off and outputs the counter control signal from the external input signal through the data set therein from the signal output from the water level sensor 74 The controller 75 is connected, the motor 75 converts a constant voltage by the controller 75, and connects the motor driving circuit unit 76 to apply power, and is received through the motor driving circuit unit 76. Connected to the one-way motor 10 is rotated by a predetermined direction and rotated by a predetermined number of revolutions by the control signal of the roller 75, and is closely connected to the rotation axis of the one-way motor 10 so that the components can be mounted in the internal space The case 200 to be connected, the support 20 is rotated by supporting the inside of the case 20, and connects the protrusion rotating body 30 having a plurality of protrusions formed on the outer circumferential surface thereof, and makes the protrusion rotating body 30 contact with the protrusion of Connect the contact switch 40 for outputting an electrical signal while switching, and is intimately connected to the projection rotating body 30 penetrating outside the case 20 so as to control the flow of the water supply so as to control the flow of the water supply. Water supply valve control device for the boiler consisting of a rotary ball 60 to open and close.