Remote control device for valve

Abstract

The utility model discloses a remote control device for a valve, which belongs to the technical field of valve control systems and comprises a valve body mounted on a pipeline, a valve controller, an electromagnetic coil, a valve rod and a contact are arranged in the valve body, the valve rod is fixedly connected with the contact, and the electromagnetic coil is controlled by the valve controller. The electromagnetic coil is powered on to drive the valve rod to slide up and down to be inserted into or away from the pipeline to achieve stopping and circulation of the pipeline, the position sensor is installed on the valve rod, the remote control platform is used for receiving or sending instruction signals to the valve controller and the position sensor, and the technical problem that electronic components in the remote control platform break down to cause system stopping is solved. The valve is mainly applied to pipe network remote control valves.

Description

TECHNICAL FIELD

[0001] The utility model belongs to valve control system technical field, concretely relates to a valve remote control device. BACKGROUND

[0002] Sequential control is applied to all aspects of industrial control, such as RTO incineration system, pressure swing adsorption PSA system, and the opening and closing state of the program-controlled valve is crucial in this type of industrial control, if the valve feedback is lost or the opening and closing state is inconsistent with the sequential control command, the sequential control stops or the whole system interlocks and trips, causing fluctuations in industrial production.

[0003] In industrial production, the valve switch is generally controlled by a solenoid valve, and the valve switch state in the remote control platform is realized by the feedback switch of the valve body itself. Since the valve feedback uses electronic components, the electronic components themselves have a certain failure rate, and the frequent operation of the sequential control valve switch leads to a relatively high failure rate of the valve feedback. UTILITY MODEL CONTENT

[0004] The utility model aims to provide a valve remote control device to solve the technical problem of system shutdown caused by electronic component failure in the remote control platform.

[0005] The above technical purpose of the utility model is realized by the following technical scheme: a valve remote control device, characterized by comprising a valve body installed on a pipeline, a valve controller, a solenoid, a valve rod and a contact in the valve body, the valve rod is fixedly connected with the contact, the solenoid is controlled by the valve controller, the solenoid is energized to drive the valve rod to slide up and down to insert or move away from the pipeline, realizing the cutoff or flow of the pipeline, a position sensor is installed on the valve rod, and a remote control platform is used to receive or send instruction signals to the valve controller and the position sensor.

[0006] Further, the position sensor is a wireless sensor that transmits electric signals to the remote control platform.

[0007] Further, it further comprises an open feedback sensor and a close feedback sensor, wherein the open feedback sensor is installed on the valve body and located directly above the valve rod, and the close feedback sensor is installed on the pipeline and located directly below the contact.

[0008] Further, the remote control platform system also receives electric signals of the open feedback sensor and the close feedback sensor.

[0009] Compared with existing technologies, this utility model has the following advantages: By adding an open feedback sensor and a close feedback sensor, an AND gate is formed by the valve opening command from the remote control platform and the loss of the close feedback sensor, and an OR gate is formed by the trigger of the open feedback sensor. When both the command and the close feedback loss are true, it can be determined whether the valve is open. The AND gate and the trigger of the open feedback sensor form an OR gate to determine whether the valve is properly opened. Similarly, an AND gate is formed by the valve closing command from the remote control platform and the loss of the open feedback sensor, and an OR gate is formed by the trigger of the close feedback sensor. When both the command and the open feedback loss are true, it can be determined whether the valve is open. The AND gate and the trigger of the close feedback sensor form an OR gate to determine whether the valve is properly opened. This improves the stability of the sequential control system and avoids sequential control stoppage or malfunction caused by electronic component failure. Because the structure of this application is more reasonable, the production cost is lower, making it suitable for widespread promotion and application. Attached Figure Description

[0010] Figure 1 This is a cross-sectional view of the present invention with the shell attached. Detailed Implementation

[0011] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present utility model. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. All other embodiments obtained by those skilled in the art based on the embodiments of the present utility model without creative effort are within the protection scope of the present utility model.

[0012] In the description of this utility model, it should be noted that the terms "upper," "lower," "inner," "outer," "front end," "rear end," "both ends," "one end," and "the other end," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are used solely for the convenience of describing this utility model and for simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model. Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance.

[0013] Example 1:

[0014] In one technical solution of this utility model, such as Figure 1As shown, a valve remote control device, characterized by, including installed in the pipeline 1 valve body 2, valve body 2 is provided with valve controller 3, electromagnetic coil 4, valve stem 5 and contact 6, valve stem 5 and contact 6 are fixedly connected, the electromagnetic coil 4 is controlled by the valve controller 3, the electromagnetic coil 4 is energized to drive the valve stem 5 to slide up and down to insert or away from the pipeline 1, realize the cut-off or flow of the pipeline 1, install position sensor 7 on the valve stem 5, remote control platform 8 is used for receiving or sending instruction signal to valve controller 3 and position sensor 7;

[0015] In the above technical features: pipeline 1 is a communication pipeline in the industrial system, which is used for conveying various kinds of gas or liquid, valve body 2 is installed in pipeline 1, and two non-connected pipelines 1 can also be connected through valve body 2, the energization of electromagnetic coil 4 is controlled by valve controller 3, the output port of valve controller 3 can provide appropriate voltage and current signal to electromagnetic coil 4, electromagnetic coil 4 surrounds a tubular valve body, when the coil is energized to generate a magnetic field, the valve stem 5 located in the pipe will be subjected to axial magnetic force, thereby performing linear motion in the pipe, and then controlling the opening or closing of the valve;

[0016] Position sensor 7 is a wireless sensor, which transmits electric signal to remote control platform 8;

[0017] It also includes open feedback sensor 9 and close feedback sensor 10, wherein open feedback sensor 9 is installed on valve body 2, located directly above valve stem 5, and close feedback sensor 10 is installed on pipeline 1, located directly below contact 6;

[0018] Remote control platform 8 system also receives electric signal of open feedback sensor 9 and close feedback sensor 10;

[0019] In the above technical features: open feedback sensor 9 and close feedback sensor 10 are wireless sensors.

[0020] Because the valve feedback adopts electronic components, the electronic components have a certain failure rate, and in addition, the number of times of opening and closing of the sequence control valve is relatively high, resulting in a relatively high valve feedback failure rate;

[0021] Therefore, by integrating the above technical solutions, the embodiments of the present application are as follows: the staff sends instructions from remote control platform 8 according to process requirements;

[0022] When closing the valve, the valve controller 3 is sent an open valve command by the remote control platform 8, the valve controller 3 energizes the solenoid 4, the solenoid 4 energizes the valve stem 5 to slide, the valve stem 5 slides to close the open feedback sensor 9, the open feedback sensor 9 sends a loss signal to the remote control platform 8, the command and the loss of the open feedback sensor 9 form an AND gate, the AND gate and the trigger of the close feedback sensor 10 form an OR gate, when the command and the loss of the open feedback are both true, it can be determined whether the valve is opened, the AND gate and the trigger of the close feedback sensor 10 form an OR gate, thereby determining whether the valve is developed to the position.

[0023] When closing the valve, the valve controller 3 is sent an open valve command by the remote control platform 8, the valve controller 3 energizes the solenoid 4, the solenoid 4 energizes the valve stem 5 to slide, the valve stem 5 slides to close the open feedback sensor 9, the open feedback sensor 9 sends a loss signal to the remote control platform 8, the command and the loss of the open feedback sensor 9 form an AND gate, the AND gate and the trigger of the close feedback sensor 10 form an OR gate, when the command and the loss of the open feedback are both true, it can be determined whether the valve is opened, the AND gate and the trigger of the close feedback sensor 10 form an OR gate, thereby determining whether the valve is developed to the position.

[0024] The above only describes the preferred embodiments of the present application, and it should be pointed out that for ordinary skilled in the art, without departing from the principles of the present application, a number of improvements can be made, these improvements should also be considered as the protection scope of the present application.

Claims

1. A valve remote control device, characterized by, The utility model relates to a kind of valve, including the valve body (2) installed in pipeline (1), the valve body (2) is equipped with valve controller (3), electromagnetic coil (4), valve stem (5) and contact (6), valve stem (5) is fixedly connected with contact (6), electromagnetic coil (4) is controlled by valve controller (3), electromagnetic coil (4) energization drives valve stem (5) to slide up and down and inserts or away from pipeline (1), realizes the cut-off or flow of pipeline (1), installs position sensor (7) on valve stem (5), remote control platform (8) is used to receive or send instruction signal to valve controller (3) and position sensor (7); It also includes open feedback sensor (9) and close feedback sensor (10), wherein open feedback sensor (9) is installed in valve body (2), located directly above valve stem (5), close feedback sensor (10) is installed in pipeline (1), located directly below contact (6), and remote control platform (8) system also receives the electric signal of open feedback sensor (9) and close feedback sensor (10).

2. A valve remote control device according to claim 1, wherein The position sensor (7) is a wireless sensor that transmits an electrical signal to the remote control platform (8).

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