Solenoid valve box control system

Abstract

The utility model discloses an electromagnetic valve box control system which comprises a main control subsystem, an electromagnetic valve box and an optical fiber receiving and transmitting device, and the electromagnetic valve box comprises a sub-controller. And the sub-controller and the main control subsystem are in communication connection through the optical fiber receiving and transmitting device. According to the electromagnetic valve box control system, the electromagnetic valve box with the communication function can be utilized, the main control subsystem and the electromagnetic valve box are connected through the communication cable / optical fiber, and the electromagnetic valve box control system is easy and safe to operate, low in total manufacturing cost, low in failure rate and high in practicability. And the automation of the existing electromagnetic valve box is greatly improved.

Description

Technical Field

[0001] The utility model relates to the field of water treatment, in particular to a solenoid valve box control system. Background Art

[0002] In traditional water treatment processes, the control of pneumatic shut-off valves relies on solenoid valve boxes, which are connected to a central control system (such as a DCS) via cables for remote automatic control. Each solenoid valve box contains a variety of electrical components, such as intermediate relays, transfer switches, and indicator lights. These components have a relatively high failure rate, and a large number of cables are required to transmit control signals and power, which not only increases costs but also may lead to wiring errors.

[0003] Especially in large sewage treatment plants, such as a system with 240 pneumatic shut-off valves and 40 solenoid valve boxes, the amount of cables used is huge, resulting in high material costs.

[0004] Therefore, there is an urgent need for a solenoid valve box control system that can reduce the amount of cables used in the solenoid valve box control system, reduce costs, and improve system reliability and ease of operation. Utility Model Content

[0005] The problem to be solved by the embodiments of the present invention is: how to solve the problem in the related art that remote control of the solenoid valve box requires a large number of cables, resulting in high costs and complex operations.

[0006] According to a first aspect of the utility model, a solenoid valve box control system is provided, the solenoid valve box control system comprising: a main control subsystem (5), a solenoid valve box (1) and an optical fiber receiving and transmitting device (13), the solenoid valve box (1) comprising a sub-controller (3);

[0007] The sub-controller (3) and the main control subsystem (5) are communicatively connected via an optical fiber transceiver (13).

[0008] Optionally, a pneumatic shut-off valve group (6) is provided within a preset distance of the solenoid valve box (1).

[0009] Optionally, a housing corresponding to the solenoid valve box (1) is provided with a liquid crystal display (2), and the liquid crystal display (2) is used to control the opening or closing of the valve corresponding to the pneumatic shut-off valve group (6).

[0010] Optionally, a solenoid valve box switch is provided below the liquid crystal display (2).

[0011] Optionally, a proximity switch (15) is provided on the pneumatic shut-off valve assembly (6);

[0012] The proximity switch (15) controls the opening or closing of the valve corresponding to the pneumatic shut-off valve group (6).

[0013] Optionally, a plurality of proximity switches (15) and indicator lights are provided on the surface of the solenoid valve box (1), and the proximity switches (15) and indicator lights are arranged in a preset horizontal and vertical arrangement.

[0014] Optionally, the interior of the solenoid valve box (1) is in a multi-arrangement form, and the interior of the solenoid valve box (1) includes a first row of the sub-controller (3) and five intermediate relays, a second row of seventeen intermediate relays and a DC switching power supply, a third row of first terminals, a fourth row of second terminals, and a fifth row of five-position three-way / three-position measuring cylinder pilot solenoid valves.

[0015] Optionally, the solenoid valve box control system further comprises: a power supply cabinet (4);

[0016] The power supply cabinet (4) is arranged in a power distribution room area (11), and the power supply cabinet (4) is communicatively connected to the solenoid valve box (1) via a power cable.

[0017] Optionally, the main control subsystem (5) is arranged in a main control room (12).

[0018] Optionally, the solenoid valve box control system further comprises: a pressure reducing valve (7); the pressure reducing valve (7) is arranged on the surface of the solenoid valve box (1).

[0019] The electromagnetic valve box control system provided by the utility model has the following beneficial technical effects:

[0020] The solenoid valve box control system includes: a main control subsystem, a solenoid valve box and an optical fiber receiving and transmitting device, the solenoid valve box includes a sub-controller; the sub-controller and the main control subsystem are connected to each other through the optical fiber receiving and transmitting device. That is, in the embodiment of the present application, through the solenoid valve box control system, a solenoid valve box with a communication function can be used to connect the main control subsystem and the solenoid valve box through a communication cable / optical fiber. The signal transmitted here is mainly digital (digital is DI / DO signal), and data can be read and written. That is, the solenoid valve box control system in the embodiment of the present application is simple and safe to operate, with a low total cost and low failure rate. It greatly improves the automation of the existing solenoid valve box. In addition, in the later stage, the system can be modularized, the controller can be plugged in and out at will, and data can be uploaded and downloaded between the controllers through the network cable, thereby reducing the operation and maintenance workload of the overall system in the later stage. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] Figure 1 This is a schematic diagram of the structure of a solenoid valve box control system according to an embodiment of the present invention;

[0022] Figure 2 This is a schematic diagram of the front layout structure of a valve box without a liquid crystal display screen according to an embodiment of the present invention;

[0023] Figure 3 This is a wiring diagram of a solenoid valve box without a liquid crystal display screen according to an embodiment of the present invention;

[0024] Figure 4 This is a schematic diagram of the front layout structure of a valve box with a liquid crystal display screen according to an embodiment of the present invention;

[0025] Figure 5 The utility model is a wiring diagram of a solenoid valve box with a liquid crystal display according to an embodiment of the present invention.

[0026] Explanation of the accompanying drawings: 1-solenoid valve box, 2-LCD display, 3-sub-controller, 4-power cabinet, 5-main control subsystem, 6-pneumatic shut-off valve group, 7-pressure reducing valve, 8-air source main pipe, 9-wastewater collection tank, 10-equipment installation area, 11-distribution room area, 12-main control room, 13-optical fiber receiving and transmitting device, 14-power cable, 15-proximity switch. DETAILED DESCRIPTION

[0027] In order to make the above-mentioned objects, features and advantages of the present invention more obvious and easy to understand, the present invention is further described in detail below with reference to the accompanying drawings and specific embodiments.

[0028] Hereinafter, embodiments of the present disclosure will be described with reference to the accompanying drawings. However, it should be understood that these descriptions are merely exemplary and are not intended to limit the scope of the present disclosure. In the detailed description below, for ease of explanation, many specific details are set forth to provide a comprehensive understanding of the embodiments of the present disclosure. However, it is apparent that one or more embodiments may also be implemented without these specific details. In addition, in the following description, descriptions of well-known structures and technologies are omitted to avoid unnecessary confusion of the concepts of the present disclosure.

[0029] It should be noted that the directional terms mentioned in the embodiments, such as "up", "down", "front", "back", "left", "right", etc., are only with reference to the directions of the drawings. When the orientation of the elements / components changes, the "up" in the corresponding structure may change to "down". Therefore, the above description is for the purpose of clearly describing the relative positions and should not be understood in an absolute sense. The above description is not intended to limit the scope of protection of the present disclosure. Throughout the drawings, the same elements are represented by the same or similar figure marks. Conventional structures or constructions will be omitted when they may cause confusion in the understanding of the present disclosure.

[0030] The shapes and sizes of the components in the drawings do not reflect the actual size and proportion, but are merely illustrative of the contents of the embodiments of the present disclosure. In addition, in the claims, any reference signs placed between brackets should not be construed as limiting the claims.

[0031] Figure 1 This is a schematic diagram of the structure of a solenoid valve box control system according to an embodiment of the present invention; Figure 2 This is a schematic diagram of the front layout structure of a valve box without a liquid crystal display screen according to an embodiment of the present invention; Figure 3 This is a wiring diagram of a solenoid valve box without a liquid crystal display screen according to an embodiment of the present invention; Figure 4 This is a schematic diagram of the front layout structure of a valve box with a liquid crystal display screen according to an embodiment of the present invention; Figure 5 The utility model is a wiring diagram of a solenoid valve box with a liquid crystal display according to an embodiment of the present invention.

[0032] In the first embodiment of the present invention, referring to Figure 1-Figure 5 , 1-solenoid valve box, 2-LCD display, 3-sub-controller, 4-power cabinet, 5-main control subsystem, 6-pneumatic shut-off valve group, 7-pressure reducing valve, 8-gas source main, 9-wastewater collection tank, 10-equipment installation area, 11-distribution room area, 12-main control room, 13-optical fiber receiving and transmitting device, 14-power cable, 15-proximity switch.

[0033] According to a first aspect of the present utility model, there is provided a solenoid valve box control system comprising: a main control subsystem, a solenoid valve box and an optical fiber receiving and transmitting device, wherein the solenoid valve box comprises a sub-controller;

[0034] The sub-controller and the main control subsystem are communicatively connected via an optical fiber transceiver.

[0035] Optionally, a pneumatic shut-off valve is provided within a preset distance of the solenoid valve box.

[0036] Optionally, a shell corresponding to the solenoid valve box is provided with a liquid crystal display, and the liquid crystal display is used to control the opening or closing of the valve corresponding to the pneumatic shut-off valve.

[0037] Optionally, a solenoid valve box switch is provided below the LCD display.

[0038] Optionally, a proximity switch is provided on the pneumatic shut-off valve;

[0039] The proximity switch controls the opening or closing of the valve corresponding to the pneumatic shut-off valve.

[0040] Specifically, the proximity switch signal is fed back to the substation controller and the main control system in the solenoid valve box, and the opening or closing of the valve corresponding to the pneumatic shut-off valve is controlled according to a pre-written control program.

[0041] Optionally, a plurality of proximity switches and indicator lights are provided on the surface of the solenoid valve box, and the proximity switches and indicator lights are arranged in a preset horizontal and vertical arrangement.

[0042] Optionally, the interior of the solenoid valve box is in a multi-arrangement form, and the interior of the solenoid valve box includes a sub-controller and five intermediate relays in the first row, seventeen intermediate relays and a DC switching power supply in the second row, the third row is the first terminal, the fourth row is the second terminal, and the fifth row is a five-position three-way / three-position measuring cylinder pilot solenoid valve.

[0043] Optionally, the solenoid valve box control system further includes: a power supply cabinet;

[0044] The power supply cabinet is arranged in the power distribution room area, and the power supply cabinet is communicatively connected to the solenoid valve box via a power cable.

[0045] Optionally, the main control subsystem is arranged in a main control room.

[0046] Specifically, the main control subsystem is set in the main control room, and a sub-controller is set inside the on-site solenoid valve box. The sub-controller communicates with the main control subsystem to control the pneumatic shut-off valve on-site in the equipment installation area.

[0047] Optionally, the solenoid valve box control system further includes: a pressure reducing valve; the pressure reducing valve is arranged on the surface of the solenoid valve box.

[0048] It should be noted that, in an embodiment of the present application, a solenoid valve box control system is provided, which includes: a main control subsystem, a solenoid valve box, and an optical fiber receiving and transmitting device, and the solenoid valve box includes a sub-controller.

[0049] Specifically, the optical fiber transmission and receiving device is used to realize long-distance optical fiber communication and ensure the stability and reliability of data transmission.

[0050] The solenoid valve box contains a sub-controller, which is responsible for receiving and processing signals from the field solenoid valve. The field sub-controller functions include: the field controller is mainly responsible for the acquisition of digital signals and basic control functions, such as simple start, protection and stop operations.

[0051] The proximity switch of the field-installed solenoid valve box is used to be installed on the pneumatic shut-off valve to detect the open or closed status of the valve.

[0052] The power cable of the valve is used to transmit the signal of the proximity switch to the controller on the solenoid valve box side.

[0053] The signal transmission process of the solenoid valve box control system in the embodiment of the present application includes the following:

[0054] The opening and closing status of the valve is transmitted to the sub-controller on the solenoid valve box side through a 4*1.5 cable. After receiving the signal, the sub-controller transmits the signal to the main control subsystem such as DCS / PLC through optical fiber communication.

[0055] Among them, control programs have been written in the main control subsystem, including the sequential control main programs of the ultrafiltration system, reverse osmosis system, weak acid cation bed, anion bed, mixed bed, etc. These main programs are responsible for realizing the automatic control of the water production process.

[0056] Therefore, in the embodiment of the present application, the on-site solenoid valve box controller establishes a connection with the main control system host through network communication to achieve remote control of the opening and closing of the valve.

[0057] Furthermore, due to the various other devices installed on the solenoid valve box, there are two ways to achieve on-site control: local control mode. Currently, there are two main local control modes for the solenoid valve box. One is a control mode without a display. This mode retains the traditional on-off control and has a lower overall cost than the one with a display. The other is a local control mode with a display. This mode clearly shows the status of the valve on the process flow chart, allowing for better on-site judgment of the program direction and the current step.

[0058] Typically, a large number of solenoid valve boxes are located on-site, and signals from closely spaced boxes need to be aggregated. These signals are then transmitted to the main control system via a communication management machine. One communication management machine is used for every 10 solenoid valve boxes on-site, and this communication management machine can communicate with 310 points.

[0059] The first way, refer to Figure 4 、 5 An LCD is mounted on the upper portion of the solenoid valve housing, displaying the process flow. The LCD can be used to control the pneumatic shut-off valves in the process flow. This solution utilizes a solenoid valve housing with a display, a controller, and RS485 communication. Specifically, local operation allows for the start and stop of the pneumatic shut-off valves directly via the LCD and communication. Automatic control requires the DCS master control system.

[0060] The second method, refer to Figure 2 、 3A manual rotary switch with open and stop functions is installed outside the solenoid valve box door. An indicator light is located on the upper panel of the solenoid valve box door. This solution is a solenoid valve box solution without an LCD screen. The control panel includes a manual switch and indicator light display, a controller, and RS485 communication mode. Specifically, the solution with communication function does not include an LCD screen. The on-site switch starts and stops the solenoid valve, and thus the pneumatic shut-off valve. The switch signal can enter the controller or not. In this solution, it does not enter. This reduces the number of controller points and is implemented using an on-site intermediate relay.

[0061] That is, a plurality of proximity switches and indicator lights are provided on the surface of the solenoid valve box, and the proximity switches and indicator lights are arranged in a preset horizontal and vertical arrangement.

[0062] Optionally, the interior of the solenoid valve box is in a multi-arrangement form, and the interior of the solenoid valve box includes a sub-controller and five intermediate relays in the first row, seventeen intermediate relays and a DC switching power supply in the second row, the third row is the first terminal, the fourth row is the second terminal, and the fifth row is a five-position three-way / three-position measuring cylinder pilot solenoid valve.

[0063] It should be noted that, in the embodiment of the present application, the control principle of the on-site valve is as follows: the on-site valve is a pneumatic switch valve, and the valve itself is equipped with a drivable air cylinder. When the control circuit of the valve in the solenoid valve box is connected, the opening and closing of the solenoid valve of the pneumatic shut-off valve is controlled to control the opening and closing of the air circuit. The solenoid valve voltage is DC24V, and the controller itself can be equipped with a DC24V power supply. The solenoid valve box with a communication function can directly control the shut-off of the solenoid valve through the automatic control program and the manual program. When the on-site pneumatic shut-off valve opening signal is fed back, the air circuit of the open valve will continue to supply air, and the pneumatic shut-off valve will remain open. When the solenoid valve is closed, the air circuit of the closed valve will continue to supply air, and the pneumatic shut-off valve will be closed.

[0064] In summary, the solenoid valve box control system provided by the present invention includes: a main control subsystem, a solenoid valve box and an optical fiber receiving and transmitting device, the solenoid valve box includes a sub-controller; the sub-controller and the main control subsystem are communicatively connected via the optical fiber receiving and transmitting device. That is, in the embodiment of the present application, through the solenoid valve box control system, a solenoid valve box with a communication function can be used to connect the DCS control system and the solenoid valve box through a communication cable / optical fiber. The signals transmitted here are mainly digital quantities (digital quantities are DI / DO signals), and data can be read and written. That is, the solenoid valve box control system in the embodiment of the present application is simple and safe to operate, with a low total cost and a low failure rate. It greatly improves the automation of the existing solenoid valve box. In addition, in the later stage, the system can be modularized, the controller can be plugged in and out at will, and data can be uploaded and downloaded between the controllers through a network cable, thereby reducing the operation and maintenance workload of the overall system in the later stage.

[0065] The technical solutions provided by this application are described in detail above. Specific examples are used herein to illustrate the principles and implementation methods of this application. The description of the above embodiments is only intended to help understand this application, and the contents of this specification should not be construed as limiting this application. At the same time, for those skilled in the art, according to this application, there may be various changes in the specific implementation methods and application scopes. It is not necessary and impossible to list all implementation methods here, and obvious changes or modifications derived therefrom are still within the scope of protection of this application.

[0066] Although the preferred embodiments of the present invention have been described, those skilled in the art may make additional changes and modifications to these embodiments once they are aware of the basic creative concepts. Therefore, the appended claims are intended to be interpreted as including the preferred embodiments and all changes and modifications that fall within the scope of the present invention.

[0067] Finally, it should be noted that, in this document, relational terms such as first and second, etc., are used only to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any actual relationship or order between these entities or operations. Moreover, the terms "comprises," "comprising," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or terminal device that includes a series of elements includes not only those elements, but also other elements not explicitly listed, or elements inherent to such process, method, article, or terminal device. In the absence of further limitations, an element defined by the phrase "comprising a ..." does not exclude the presence of additional identical elements in the process, method, article, or terminal device that includes the element.

[0068] Although the preferred embodiments of the present invention have been described, those skilled in the art may make additional changes and modifications to these embodiments once they have learned the basic creative concept. Therefore, the appended claims are intended to be interpreted as including the preferred embodiments and all modifications and changes that fall within the scope of the present invention.

[0069] Obviously, those skilled in the art may make various modifications and variations to the present invention without departing from the spirit and scope of the present invention. Thus, if such modifications and variations fall within the scope of the claims of the present invention and their equivalents, the present invention is intended to include such modifications and variations.

Claims

1. A solenoid valve box control system, characterized in that: The solenoid valve box control system comprises: a main control subsystem (5), a solenoid valve box (1), and an optical fiber receiving and transmitting device (13); the solenoid valve box (1) comprises a sub-controller (3); The sub-controller (3) and the main control subsystem (5) are communicatively connected via an optical fiber transceiver (13).

2. The solenoid valve box control system according to claim 1, characterized in that: A pneumatic shut-off valve group (6) is provided within a preset distance of the solenoid valve box (1), and the pneumatic shut-off valve group includes a plurality of pneumatic shut-off valves.

3. The solenoid valve box control system according to claim 2, characterized in that: The housing corresponding to the solenoid valve box (1) is provided with a liquid crystal display (2), and the liquid crystal display (2) is used to control the opening or closing of the valve corresponding to the pneumatic shut-off valve group (6).

4. The solenoid valve box control system according to claim 3, characterized in that: A solenoid valve box switch is provided below the liquid crystal display (2).

5. The solenoid valve box control system according to claim 2, characterized in that: The pneumatic shut-off valve assembly (6) is provided with a proximity switch (15); The proximity switch (15) controls the opening or closing of the valve corresponding to the pneumatic shut-off valve group (6).

6. The solenoid valve box control system according to claim 5, characterized in that: A plurality of proximity switches (15) and indicator lights are provided on the surface of the solenoid valve box (1), and the proximity switches (15) and indicator lights are arranged in a preset horizontal and vertical arrangement.

7. The solenoid valve box control system according to claim 5, characterized in that: The interior of the solenoid valve box (1) is in a multi-arrangement form, wherein the first row comprises a sub-controller (3) and five intermediate relays, the second row comprises seventeen intermediate relays and a DC switching power supply, the third row comprises first terminals, the fourth row comprises second terminals, and the fifth row comprises a five-position three-way / three-position graduated cylinder pilot-operated solenoid valve.

8. The solenoid valve box control system according to claim 1, characterized in that: The solenoid valve box control system further comprises: a power supply cabinet (4); The power supply cabinet (4) is arranged in a power distribution room area (11), and the power supply cabinet (4) is communicatively connected to the solenoid valve box (1) via a power cable.

9. The solenoid valve box control system according to claim 1, characterized in that: The main control subsystem (5) is arranged in a main control room (12).

10. The solenoid valve box control system according to claim 1, characterized in that: The solenoid valve box control system further comprises: a pressure reducing valve (7); the pressure reducing valve (7) is arranged on the surface of the solenoid valve box (1).

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