JP2009287672A - Gas shut-off valve system - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a gas shut-off valve system facilitating setting work in a motor valve unit. <P>SOLUTION: This gas shut-off system includes a motor valve unit 1 and an operation unit 2 connected to the motor valve unit 1 freely to communicate with each other. The operation unit 12 includes a setting information input means 28, to which special information of the motor valve unit 1 is to be input, and a transmitting means 21a for transmitting the setting information input to the setting information input means 28 to the motor valve unit 1. The motor valve unit 1 includes a receiver means 11a for receiving the setting information transmitted by the transmitting means 21a, a setting information memory 15 for storing the setting information received by the receiver means 11a, and a drive control means 11b for controlling drive of a motor 5 based on the setting information stored in the setting information memory 15. <P>COPYRIGHT: (C)2010,JPO&INPIT

Description

  The present invention relates to a gas cutoff valve system, and more particularly to a gas cutoff valve system including a motor valve that opens and closes a valve body by a motor.

  Conventionally, a solenoid valve that opens and closes a valve element attached to a movable iron piece by moving the movable iron piece (plunger) using an electromagnet has been used as a gas cutoff valve. Since this solenoid valve performs opening and closing operations by positioning the valve body in the fully open position or the fully closed position by an electromagnet, the gas shut-off valve is always in either the fully open state or the fully closed state, and the valve body is There is no half-open state of the gas shutoff valve located between the fully open position and the fully closed position (that is, halfway position), and the solenoid valve has a high operating speed, so that the valve body can be operated quickly. Therefore, it was suitable as a shut-off valve that needs to shut off gas instantaneously. In addition, the drive control of the solenoid valve is performed by controlling the voltage applied to the electromagnet by the operation unit to which the user's operation is input. Therefore, the drive control related to the opening / closing operation is prescribed for the solenoid valve itself. The setting to do was unnecessary.

  However, when a solenoid valve is applied to a gas pipe with a high flow rate, a large valve body that matches the gas flow rate and a large electromagnet that generates a strong magnetic force that can open and close the valve body are required. There was a problem that the valve was enlarged. In addition, since the solenoid valve opens and closes the valve body by magnetic force, the opening and closing operation is affected by gravity, and therefore, the assembling direction to the gas pipe (for example, the moving direction of the movable iron piece is horizontal). There was a problem that there were restrictions and the number of places that could be incorporated into gas piping was limited. In addition, the solenoid valve is composed of the valve element, the movable iron piece, and the electromagnet in one piece. In other words, only a part of them cannot be replaced. In addition, since the entire system is replaced, a lot of work time is required, resulting in a problem that the maintenance cost becomes high.

  In order to avoid the problems in these solenoid valves, in recent years, a motor valve that opens and closes a valve element using a motor has been adopted as a gas shut-off valve. An example of a motor valve unit provided with this motor valve is shown in FIG.

  As shown in FIG. 7, a gas shut-off valve 700, which is a motor valve unit, includes a valve body portion 701 and a valve drive portion 702 fixed to the upper portion of the valve body portion 701 with a bolt.

  The valve body portion 701 includes a first port 731, a valve chamber 733, a pipe line 734, and a second port 732 that are sequentially connected to each other, and a spherical body that is rotatably disposed in the valve chamber 733. And a ball valve 704 which is a valve body. The ball valve 704 includes a conduction path 704a provided through the center and a driven shaft 741 connected to the upper portion.

  The valve drive unit 702 includes a valve drive motor 705, a rotational force transmission mechanism 706, and a control unit 710, each housed in a case 702A. The valve drive motor 705 is a well-known stepping motor. The rotational force transmission mechanism 706 is a small-diameter gear 761 coaxially fixed to the main shaft 751 of the valve driving motor 705, a large-diameter gear 762 meshed with the gear 761, and a rotational shaft of the gear 762 and is connected thereto. And a drive shaft 707 that is coaxially connected to the driven shaft 741 of the ball valve 704 by a pin 708. The control unit 710 includes a well-known microcomputer, and drive control of the valve driving motor 705 is performed by this microcomputer. Further, by providing the microcomputer, for example, the gas shutoff valve 700 is controlled such that the valve drive motor 5 is controlled so as to automatically shut off the valve by determining a failure of the gas shutoff valve 700 or a gas pressure drop. Autonomous operation is possible.

  The gas shut-off valve 700 transmits the forward / reverse drive of the valve drive motor 705 to the ball valve 704 via the rotational force transmission mechanism 706, thereby rotating the ball valve 704 approximately 90 degrees in the valve chamber 733, Thereby, the central axis of the conduction path 704a and the pipe line 734 are parallel (that is, fully opened position), and the first port 731 and the pipe line 734 are conducted (that is, the gas cutoff valve 700 is fully opened), or The first port 731 and the conduit 734 are blocked by the ball valve 704 itself (that is, the gas shut-off valve 700 is fully closed) by making the central axis of the conducting passage 704a and the conduit 734 orthogonal (that is, fully closed position). )

  In addition, the gas shut-off valve 700 easily separates the valve drive unit 702 and the valve body unit 701 by pulling out the connecting pin 708 and removing the bolt that fixes the valve drive unit 702 to the valve body unit 701. be able to.

  According to this gas shut-off valve 700, since the large ball valve 704 can be driven by the small valve drive motor 705 by the rotational force transmission mechanism 706, even when the gas shut-off valve is installed at a location where the gas flow rate is high, It is possible to avoid an increase in size, and since the opening and closing operation of the ball valve 704 is not affected by gravity or the like, the installation location is not limited, and the ball valve 704 can be incorporated at any location on the gas pipe. Since the body part 701 and the valve drive part 702 are separable, it is possible to replace only the valve drive motor 705 that is more likely to fail than the valve body part 701, and the maintenance cost can be kept low. It was a thing. Further, since the ball valve 704 is rotated by the valve drive motor 705, the operation speed is slower than that of the solenoid valve. However, the operation necessary as a gas shut-off valve can be achieved by appropriately adjusting the reduction ratio between the gear 761 and the gear 762. The speed could be secured.

  It should be noted that there is no prior art document information to be disclosed because there is no document known invention related to the present invention that the applicant knows at the time of filing the patent.

  However, the gas shut-off valve 700 is capable of autonomous operation by a microcomputer, but the autonomous operation must be defined according to the environment in which the gas shut-off valve 700 is incorporated and the user's request. Specifically, it is necessary to set a gas pressure drop determination condition determined from the gas pipe diameter, pipe volume, etc., whether or not there is an automatic shut-off operation, in the gas shut-off valve 700. Therefore, it is necessary to provide the control unit 710 with input means for inputting setting information for defining drive control. Examples of the input means include a dip switch and a connector for connecting a setting terminal. However, in any case, since it is necessary to open the case 702A of the valve drive unit 702 and access the inside thereof, there is a problem that the setting work for inputting the setting information is complicated. In order to avoid the complexity of the setting work, it is conceivable to provide an opening in the case 702A of the valve drive unit 702. However, the sealing performance of the valve drive unit 702 is reduced, and reliability such as occurrence of a failure due to contamination by foreign matter is reduced. There was a problem that would decrease.

  The present invention aims to solve the above problems. That is, an object of the present invention is to provide a gas shut-off valve system that can easily perform setting work in a motor valve unit.

In order to achieve the above object, the invention described in claim 1 is, as shown in a basic configuration diagram of FIG. 1, provided in a flow path connected to a gas pipe, rotatably provided in the flow path, and A gas shut-off valve comprising: a motor valve unit 1 having a valve body that opens and closes a flow path; and a motor 5 that drives the valve body; and an operation unit 2 that is communicably connected to the motor valve unit 1. In the system 51, the operation unit 2 receives setting information input means 28 to which setting information in the motor valve unit 1 is input, and the setting information input to the setting information input means 28 is the motor valve unit 1. Transmitting means 21a for transmitting to the receiver, the motor valve unit 1 receiving the setting information transmitted by the transmitting means 21a, and receiving means 11a for receiving the setting information. Setting information storage means 15 for storing the set information that has been set, and drive control means 11b for controlling the driving of the motor 5 based on the setting information stored in the setting information storage means 15. This is a gas cutoff valve system.

  According to the invention described in claim 1, after the operation unit transmits the setting information in the motor valve unit inputted to the setting information input means to the motor valve unit, the motor valve unit is transmitted from the operation unit. Since the setting information is received and stored in the setting information storage means, and the motor is driven and controlled based on the setting information, the setting for the motor valve unit can be input to the operation unit. It is no longer necessary to provide an input means such as a switch or a connector for inputting the setting information to the motor valve unit, so that a complicated setting operation for the motor valve unit is not required, and the setting operation can be easily performed. In addition, it is not necessary to provide an opening in the motor valve unit, and a decrease in reliability can be prevented.

  Further, since the setting information in the motor valve unit can be grasped in the operation unit, for example, by making each setting information common, there is a deviation in the setting contents between the motor valve unit and the operation unit 2. Therefore, it is possible to avoid an illegal operation due to a difference in setting contents, and to improve reliability.

  Hereinafter, a gas shut-off valve system showing an embodiment of the present invention will be described with reference to FIGS.

  As shown in FIG. 2, the gas cutoff valve system 51 includes an operation unit 2 and a motor valve unit 1.

  First, the operation unit 2 will be described.

  The operation unit 2 is a device that inputs various operations by the user or notifies the user of information related to the gas cutoff valve system 51. The operation unit 2 includes an operation switch 26, a setting switch 28, a display unit 27, and a microcomputer 20.

  As shown in FIG. 3, the operation switch 26 includes well-known push button switches such as a use start button 26a, a use stop button 26b, and an alarm stop button 26c. The For example, when the use start button 26a is pressed, the motor valve unit 1 is opened to start supplying gas, and when the use stop button 26b is pressed, the motor valve unit 1 is closed to supply gas. Is stopped (blocked). In addition, if the alarm stop button 26c is pressed while an alarm such as a gas leak is sounded, the alarm is stopped.

  The setting switch 28 corresponds to the setting information input means described in the claims, and is a known dip switch for setting the operation of the entire gas cutoff valve system 51 including the setting in the motor valve unit 1. The setting switch 28 is covered with a cover portion 2B provided under the case 2A of the operation unit 2 so that it is not normally operated by the user. When the setting is changed, the cover portion 2B is opened and a setting operator is opened. The operation is input by. The setting contents (setting information) by the setting switch 28 are, for example, a pipe diameter, a pipe volume, an operation setting at the time of failure, and the like, and each corresponds to an individual switch included in the setting switch 28. Further, the present invention is not limited to this, and other settings such as the pipe length and the in-use pressure drop determination value may be possible. In this embodiment, the switches 28a to 28b included in the setting switch 28 correspond to the pipe diameter, the switch 28c corresponds to the pipe volume, and the switch 28h corresponds to the operation setting at the time of failure. The switch 28h is a switch that prescribes in common the operation at the time of failure in the motor valve unit 1 (that is, with / without automatic shut-off at the time of failure) and the operation at the time of failure in the operation unit 2.

  The display unit 27 is a display device for notifying the user of the operation state and the like of the gas shut-off valve system 51, and is a 7-segment LED 27a that displays a 2-digit operation code indicating a detailed operation state. A first LED 27b for displaying, a second LED 27c for displaying that gas is stopped, and the like are provided. The display unit 27 includes an alarm buzzer (not shown) made of a known piezoelectric buzzer.

  The microcomputer 20 (hereinafter referred to as MPU 20) is a well-known small computer suitable for an embedded device, and the MPU 20 is a central processing unit that performs various processes and controls according to a predetermined program as shown in FIG. A device (CPU) 21, a ROM 22 that is a read-only memory storing a program and control data for the CPU 21, and a readable / writable memory that stores various data and has an area necessary for processing operations of the CPU 21 A RAM 23, an operation switch 26, a setting switch 28, and an I / O unit 24 connected to the display unit 27 for transmitting / receiving control information to / from them. Specifically, the operation switch 26 and the setting switch 28 are connected to input ports provided in the I / O unit 14, and signals according to the on / off of these switches are input and notified to the CPU 21. The display unit 27 is connected to an output port included in the I / O unit 14, and each LED and piezoelectric buzzer are driven by a signal from the output port. Further, the I / O unit 14 includes a communication serial interface for connection to the motor valve unit 1, and setting information and various request commands are transmitted to the motor valve unit 1 using the communication serial interface. Send and receive. In addition to these, the I / O unit 14 includes a fire detection signal, a gas leak detection signal, a vibration detection signal from a fire alarm, a gas leak alarm, a seismic detector, a power failure detection unit, etc. (not shown), Various signals such as a power failure detection signal are input, and these signals are notified to the CPU 21. In addition, the MPU 20 includes an electrically erasable / rewritable read only memory (EEPROM) 25 having various storage areas necessary for processing operations of the CPU 21. In the EEPROM 25, for example, setting information set in the setting switch 28 is stored.

  Further, the CPU 21 functions as a transmission unit 21 a that transmits the setting information input to the setting switch 28 to the motor valve unit 1 based on a program stored in the ROM 22. In addition to this, the CPU 21 transmits a valve opening request command for requesting the valve opening to the motor valve unit 1 in response to the pressing of the use start button 26a, or the motor 21 in response to the pressing of the use stop button 26b. A command transmitting means for transmitting various request commands to the motor valve unit 1 according to the operation performed in the operation unit 2, such as transmitting a valve closing request command for requesting the valve closing to the valve unit 1; It also functions as various means such as alarm sounding means for sounding an alarm buzzer when various signals such as fire detection signals, gas leak detection signals, vibration detection signals, and power failure detection signals are input.

  Next, an example of the motor valve unit setting process according to the present invention executed by the CPU 21 described above will be described with reference to the flowchart shown in FIG.

  In the operation unit 2, the setting operator operates the setting switch 28 (that is, setting work), and the CPU 21 determines whether or not the setting confirmation operation is performed in step S <b> 210. For example, the setting start operation is performed by pressing the start button 26a and the stop button 26b simultaneously for a predetermined period (for example, 3 seconds), or a predetermined switch (for example, the switch 28e) provided in the setting switch 28. ) Is arbitrarily determined depending on the configuration, such as being switched from off to on, and the CPU 21 monitors the signal of the input port to which each switch is connected to determine whether or not a confirmation operation has been performed. This determination process is repeated until the setting is confirmed (N in S210), and if the setting is confirmed, the process proceeds to step S220 (Y in S210).

  In step S220, the signal of the input port to which the setting switch 28 is connected is read, and the pipe diameter, the pipe volume, and the operation setting at the time of failure (that is, automatic shut-off at the time of failure) based on the state of the read signal. A message including the setting information (with / without) is generated. Then, the process proceeds to step S230.

  In step S230, the setting information (message) generated in step S220 is transmitted to the motor valve unit 1 via the communication serial interface provided in the I / O unit 24. And the process of this flowchart is complete | finished. Note that steps S220 and S230 described above correspond to the transmission means described in the claims.

  Next, the motor valve unit 1 will be described.

  The motor valve unit 1 includes a gas flow path 3, a valve 4, a valve driving motor 5, a pressure sensor 6, and a microcomputer 10. The motor valve unit 1 is shown as a functional block. For example, if the valve driving motor is controlled by a microcomputer, such as a conventional gas shut-off valve 700 having the same shape, its specific shape is used. Is optional.

  The gas flow path 3 corresponds to the flow path described in the claims, and an upstream gas pipe 31a connected to a gas supply section (not shown) and a downstream gas connected to a gas demand section (not shown). It is a pipe line connecting the pipe 31b.

  The valve 4 corresponds to the valve body described in the claims, and is incorporated into the gas flow path 3 and is made conductive (open state) and shut off (closed state), whereby the gas flow path 3 3, that is, the flow of gas flowing through the gas pipe is controlled. The valve 4 is formed in a spherical shape and is rotated by a valve driving motor 5 to open and close the gas flow path 3.

  The valve driving motor 5 corresponds to the motor described in the claims, and is a well-known stepping motor for rotating the valve 4 so as to open and close. The valve drive motor 5 is combined with the valve 4 to constitute a motor valve that opens and closes the spherical valve 4 by the valve drive motor 5 via a plurality of gears.

  The pressure sensor 6 is a well-known semiconductor pressure sensor including a silicon chip whose resistance value changes due to strain on a diaphragm. The pressure sensor 6 is disposed closer to the downstream side of the gas flow path 3 than the valve 4 so that the pressure value of the downstream side gas pipe 31b can be measured when the gas flow path 3 is closed.

  The microcomputer 10 (hereinafter referred to as MPU 10) is a well-known small computer suitable for an embedded device, and the MPU 10 is a central processing unit that performs various processes and controls according to a predetermined program as shown in FIG. A device (CPU) 11, a ROM 12 that is a read-only memory storing a program and control data for the CPU 11, and a readable / writable memory that stores various data and has an area necessary for processing operations of the CPU 11 Is connected to the RAM 13, the valve driving motor 5, the pressure sensor 6, and a position detection sensor for detecting the rotational position of the valve 4 (not shown), and I for transmitting / receiving control information between them. / O unit 14. Further, the I / O unit 14 includes a communication serial interface for connection to the operation unit 2. The communication serial interface is used to receive setting information and various request commands from the operation unit 2. Various information for notifying the operation state of the motor valve unit 1 and the like is transmitted to the operation unit 2. The MPU 10 also includes an electrically erasable / rewritable read-only memory (EEPROM) 15 having various storage areas necessary for processing operations of the CPU 11. The EEPROM 15 stores setting information received from the operation unit 2. The EEPROM 15 corresponds to setting information storage means described in the claims. In the present embodiment, the EEPROM 15 is used as the setting information storage means. However, the present invention is not limited to this, and any device that can store information, such as the RAM 13 or an external storage medium, can be used. Also good.

  The CPU 11 receives the setting information transmitted from the transmitting means 21 a of the operation unit 2 based on the program stored in the ROM 12, and the valve drive motor 5 based on the setting information stored in the EEPROM 15. It functions as drive control means 11b for performing the drive control. Specifically, when the drive control unit 11b determines based on the setting information stored in the EEPROM 15 that the pressure value of the gas flow path 3 measured by the pressure sensor 6 satisfies a predetermined condition, The pressure drop automatic shut-off means for driving and controlling the valve drive motor 5 so as to automatically close the valve 4 upon detecting the drop, or the setting information stored in the EEPROM 15 when the failure of the motor valve unit 1 is detected. Accordingly, it is a means that functions as an automatic shut-off means at the time of failure and the like that drives and controls the valve drive motor 5 so as to automatically close the valve 4. In addition to this, the CPU 11 receives the above-described valve opening request command and valve closing request command transmitted by the transmission means of the operation unit 2 and drives the valve 4 to open and close the valve 4 based on these request commands. It also functions as valve opening / closing means for driving and controlling the motor 5.

  Next, an example of the motor valve unit setting process according to the present invention executed by the CPU 11 described above will be described with reference to the flowchart shown in FIG.

  In step S <b> 110, the CPU 11 determines whether a message including setting information transmitted from the operation unit 2 is received via the communication serial interface included in the I / O unit 14. This determination process is repeated until setting information is received (N in S110). If setting information is received, a reception response is transmitted to the operation unit 2 via the communication serial interface, and then the process proceeds to step S120 (S110). Y).

  In step S120, the received setting information is stored in a predetermined storage area provided in the EEPROM 15, and a checksum for determining the validity of various information stored in the EEPROM 15 is recalculated, Update. Then, the process proceeds to step S130.

  In step S130, reinitialization processing is performed to reflect the received setting information. At this time, the setting information is read from the EEPROM 15, and the settings related to the drive control of the valve driving motor 5 (pressure drop determination condition, whether or not to automatically shut off at the time of failure, etc.) are updated based on the setting information. Then, after the reinitialization process is completed, the process proceeds to step S140.

  In step S140, a shutoff valve process for realizing a function as a shutoff valve is performed. Specifically, it is determined whether the pressure value of the gas flow path 3 measured by the pressure sensor 6 satisfies a predetermined condition, and when the condition is satisfied, the pressure drop is determined and the valve 4 is automatically closed. The valve driving motor 5 is controlled so as to automatically close the valve 4 in accordance with the setting information stored in the EEPROM 15 when the valve driving motor is driven and controlled, or when a failure of the motor valve unit 1 is detected. The valve drive motor 5 is driven and controlled so as to open and close the valve 4 in response to the valve opening request command and the valve closing request command transmitted from the operation unit 2. To do. And the process of this flowchart is complete | finished. The above-described steps S110 and S120 correspond to the receiving means described in the claims, and step S140 also corresponds to the drive control means.

  Next, an example of the motor valve unit setting operation in the gas cutoff valve system 51 will be described with reference to the sequence diagram shown in FIG. The numbers in parentheses below correspond to the numbers in parentheses in FIG.

  (1) First, in the operation unit 2, the setting switch 28 is operated by a setting operator to set the pipe diameter, the pipe volume, and the operation at the time of failure in the motor valve unit 1.

  (2) When the setting is confirmed by the confirming operation, setting information (a telegram) is generated based on each setting performed on the setting switch 28 and transmitted from the operation unit 2 to the motor valve unit 1. The When the motor valve unit 1 receives the setting information, the motor valve unit 1 transmits a reception response (message) to the operation unit 2.

  (3) When receiving the reception response from the motor valve unit 1, the operation unit 2 displays an operation code (for example, 11) indicating that the motor valve unit 1 is waiting for activation on the 7-segment LED 27a.

  (4) After storing the received setting information in the EEPROM 15, the motor valve unit 1 recalculates the checksum of the EEPROM 15 and updates the value. Then, the motor valve unit 1 is initialized to reflect the new setting.

  (5) The motor valve unit 1 transmits alarm information (telegram) for notifying the result of the initialization operation to the operation unit 2 after completion of the initialization operation. When receiving the alarm information, the operation unit 2 transmits an end response (message) to the motor valve unit 1.

  (6) After transmitting the end response, the operation unit 2 displays an operation code (for example, 00) on the 7-segment LED 27a to indicate that the motor valve unit 1 has been activated and can be operated. When the motor valve unit 1 receives the end response, the motor valve unit 1 starts a predetermined operation such as opening the valve 4 or monitoring the pressure value of the gas flow path 3.

  As described above, according to the present invention, after the operation unit 2 transmits the setting information in the motor valve unit 1 input to the setting switch 28 to the motor valve unit 1, the motor valve unit 1 Since the transmitted setting information is received and stored in the EEPROM 15, and the valve drive motor 5 is driven and controlled based on the setting information, the setting for the motor valve unit 1 can be input to the operation unit 2, and therefore Since there is no need to provide an input means such as a switch or a connector for inputting the setting information on the motor valve unit 1 side, complicated setting work for the motor valve unit 1 becomes unnecessary, and the setting work can be easily performed. Can do. Moreover, it is not necessary to provide an opening in the motor valve unit 1, and a decrease in reliability can be prevented.

  In addition, since the setting information in the motor valve unit 1 can be grasped in the operation unit 2, for example, by sharing each setting information, the setting information can be changed between the motor valve unit 1 and the operation unit 2. It is possible to prevent a deviation from occurring, and therefore, an illegal operation due to a deviation in setting contents can be avoided, and reliability can be improved.

  In this embodiment, the setting switch 28 is used as setting information input means. However, the present invention is not limited to this. For example, a communication connector is provided in the operation unit 2 and a setting terminal is connected to the motor. The input means is arbitrary, such as inputting setting information in the valve unit 1.

  In addition, embodiment mentioned above only showed the typical form of this invention, and this invention is not limited to embodiment. That is, various modifications can be made without departing from the scope of the present invention.

It is a figure which shows the basic composition figure of this invention. It is a lineblock diagram of the gas cutoff valve system which is an embodiment of the present invention. It is a figure which shows the schematic external appearance of an operation unit. It is a flowchart which shows an example of the process which concerns on this invention in CPU of an operation unit. It is a flowchart which shows an example of the process which concerns on this invention in CPU of a motor valve unit. It is a sequence diagram which shows an example of the process which concerns on this invention. It is sectional drawing which shows the conventional gas cutoff valve.

Explanation of symbols

1 Motor valve unit 2 Operation unit 3 Gas flow path (flow path)
4 Valve (Valve)
5 Valve drive motor (motor)
6 Pressure sensor 11a Receiving means (CPU of motor valve unit)
11b Drive control means (CPU of motor valve unit)
15 EEPROM (setting information storage means)
21a Transmission means (CPU of operation unit)
28 Setting switch (setting information input means)
51 Gas shut-off valve system

Claims (1)

A motor valve unit having a flow path connected to a gas pipe, a valve body rotatably provided in the flow path and opening and closing the flow path, and a motor for driving the valve body; and the motor valve unit A gas shut-off valve system comprising an operation unit communicatively connected to
The operation unit has setting information input means for inputting setting information in the motor valve unit, and transmission means for transmitting the setting information input to the setting information input means to the motor valve unit,
The motor valve unit is stored in the receiving means for receiving the setting information transmitted by the transmitting means, the setting information storing means for storing the setting information received by the receiving means, and the setting information storing means. And a drive control means for performing drive control of the motor based on the setting information.

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