Seawater reverse osmosis electromagnetic valve box

Abstract

The utility model relates to the technical field of control equipment, in particular to a seawater reverse osmosis electromagnetic valve box. According to the seawater reverse osmosis electromagnetic valve box, a plurality of valves are electrically connected with a programmable logic controller; a man-machine interaction interface is arranged on the outer side face of the box body, and the man-machine interaction interface and the programmable logic controller are connected through a communication module so as to control the valves. The programmable logic controller is electrically connected with the distributed control system so as to remotely control the plurality of valves through the programmable logic controller; the probe is connected with the transmitter, the probe is used for detecting seawater, and the transmitter is used for outputting a detection result of the probe. According to the technical scheme, by introducing the programmable logic controller, the man-machine interaction interface and the communication module, remote control over the valves is achieved, the automation degree is improved, and the technical problems that a seawater reverse osmosis electromagnetic valve box is low in automation degree and difficult to achieve remote control are jointly solved.

Description

Technical Field

[0001] This utility model relates to the technical field of control equipment, and in particular to a seawater reverse osmosis solenoid valve box. Background Technology

[0002] Solenoid valve boxes are key components in automated control systems, using solenoid valves to control the flow of fluid media. They are used in water, petroleum, and chemical industries. In seawater desalination, solenoid valve boxes play a crucial role in controlling the inflow and outflow of seawater and various aspects of the reverse osmosis system.

[0003] However, existing seawater reverse osmosis (RO) solenoid valve boxes have some significant shortcomings. First, these solenoid valve boxes are typically operated using indicator lights and rotary switches, resulting in a low level of automation. This operation method is not only cumbersome but also prone to errors, especially in complex seawater treatment processes, which can affect the efficiency and stability of the entire system.

[0004] Secondly, existing seawater reverse osmosis solenoid valve boxes are difficult to control remotely. In environments such as large-scale seawater desalination plants or offshore platforms, operators may need to operate the valves from a control room far from the solenoid valve box. The lack of remote control functionality makes operation inconvenient and also increases labor costs and safety risks. Utility Model Content

[0005] The purpose of this utility model is to provide a seawater reverse osmosis solenoid valve box to solve the technical problems of low automation and difficulty in remote control of seawater reverse osmosis solenoid valve boxes.

[0006] To solve the above-mentioned technical problems, this utility model provides a seawater reverse osmosis solenoid valve box.

[0007] The seawater reverse osmosis solenoid valve box of this application includes a box body and a programmable logic controller, a probe, a transmitter and multiple valves disposed in the box body;

[0008] The valves are electrically connected to the programmable logic controller.

[0009] A human-machine interface is provided on the outer side of the housing. The human-machine interface and the programmable logic controller are connected through a communication module to control multiple valves.

[0010] The programmable logic controller is electrically connected to the distributed control system to remotely control multiple valves.

[0011] The probe is connected to the transmitter. The probe is used to detect seawater, and the transmitter is used to output the detection results of the probe.

[0012] Furthermore, the communication module includes an industrial Ethernet communication interface and a connecting optical fiber, with both ends of the connecting optical fiber connected to the human-machine interface and the programmable logic controller respectively through the industrial Ethernet communication interface.

[0013] Furthermore, the plurality of valves include a main control valve and a reverse osmosis inlet valve, a reverse osmosis flushing inlet valve, a reverse osmosis permeate unqualified discharge valve, a reverse osmosis concentrate vent valve, and a permeate valve arranged in series with the main control valve and arranged in parallel in sequence.

[0014] Furthermore, a filter is also installed inside the box.

[0015] Furthermore, the transmitter is electrically connected to the programmable logic controller and the distributed control system.

[0016] Furthermore, the housing is also equipped with a heating branch, which includes a heater, a temperature controller and a first circuit breaker located on the same circuit branch. The temperature controller is used to control the heater.

[0017] Furthermore, the enclosure is also equipped with a lighting branch circuit, which includes a lighting load, a door limit switch, and a second circuit breaker located on the same circuit branch.

[0018] Furthermore, the cabinet is provided with a cabinet door that is linked to the door limit switch. When the cabinet door is closed, the door limit switch is disconnected, and when the cabinet door is opened, the door limit switch is closed.

[0019] Furthermore, the enclosure is also equipped with a debugging branch circuit, which includes a third circuit breaker and a debugging socket located on the same circuit branch circuit.

[0020] Furthermore, the enclosure is also equipped with a valve power supply branch, which is used to supply power to multiple valves, and a fourth circuit breaker is provided on the valve power supply branch.

[0021] Compared with the prior art, the present invention has at least the following beneficial effects:

[0022] The technical solution of this application achieves remote control of multiple valves and improves the level of automation by introducing a programmable logic controller (PLC), a human-machine interface (HMI), and a communication module. Specifically, the PLC is electrically connected to the distributed control system, allowing operators to remotely control the valves through the distributed system without on-site operation. The HMI, connected to the PLC via the communication module, provides an intuitive operating interface, further simplifying the operation process. The placement of probes and transmitters enables the system to monitor seawater conditions in real time and feed the detection results back to the control system, ensuring stable system operation. These technical features work together to solve the technical problems of low automation and difficulty in remote control of seawater reverse osmosis solenoid valve boxes. Attached Figure Description

[0023] Figure 1 This is a schematic diagram of the structure of the seawater reverse osmosis solenoid valve box in one embodiment of the present invention;

[0024] Figure 2 for Figure 1 A schematic diagram of the mounting plate inside the seawater reverse osmosis solenoid valve box;

[0025] Figure 3 for Figure 1 Circuit diagram of multiple valves in the seawater reverse osmosis solenoid valve box;

[0026] Figure 4 for Figure 1 The circuit diagram of each branch of the seawater reverse osmosis solenoid valve box.

[0027] Figure label:

[0028] 1. Enclosure; 2. Programmable Logic Controller; 3. Human-Machine Interface; 4. Filter; 5. Heater; 6. Temperature Controller; 7. First Circuit Breaker; 8. Second Circuit Breaker; 9. Cabinet Door; 10. Third Circuit Breaker; 11. Debugging Socket. Detailed Implementation

[0029] The seawater reverse osmosis solenoid valve box of this utility model will be described below with reference to the schematic diagram, which illustrates the preferred embodiment of this utility model. It should be understood that those skilled in the art can modify the utility model described herein while still achieving the advantageous effects of this utility model. Therefore, the following description should be understood as being of general knowledge to those skilled in the art and is not intended to limit this utility model.

[0030] The serial numbers assigned to components in this document, such as "first," "second," etc., are merely for distinguishing the described objects and have no sequential or technical meaning. The terms "connection" and "linkage" used in this application, unless otherwise specified, include both direct and indirect connections (linkages). In the description of this utility model, it should be understood that the terms "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," "clockwise," and "counterclockwise," etc., indicating orientations or positional relationships, are based on the orientations or positional relationships shown in the accompanying drawings and are only for the convenience of describing this utility model and simplifying the description. They 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, and therefore should not be construed as a limitation of this utility model.

[0031] In this utility model, unless otherwise explicitly specified and limited, "above" or "below" the second feature can mean that the first feature is in direct contact with the second feature, or that the first feature is in indirect contact with the second feature through an intermediate medium. Furthermore, "above," "on top of," and "over" the second feature can mean that the first feature is directly above or diagonally above the second feature, or simply that the first feature is at a higher horizontal level than the second feature. "Below," "below," and "under" the second feature can mean that the first feature is directly below or diagonally below the second feature, or simply that the first feature is at a lower horizontal level than the second feature.

[0032] In this application, unless otherwise expressly specified and limited, the term "connection" shall be interpreted broadly.

[0033] For example, a "connection" can be a fixed connection, a detachable connection, or an integral part; it can be a direct connection or an indirect connection through an intermediate medium. Furthermore, the term "electrical connection" can refer to a direct electrical connection or an indirect electrical connection through an intermediate medium.

[0034] The present invention will be described more specifically by way of example in the following paragraphs with reference to the accompanying drawings. The advantages and features of the present invention will become clearer from the following description and claims. It should be noted that the drawings are in a very simplified form and use non-precise proportions, and are only used to facilitate and clarify the illustration of the embodiments of the present invention.

[0035] The following is in conjunction with the instruction manual appendix. Figure 1 This paper introduces the seawater reverse osmosis solenoid valve box of this utility model.

[0036] In one embodiment, such as Figure 1 and Figure 2As shown, the system includes a housing 1 and a programmable logic controller (PLC) 2, a probe, a transmitter, and multiple valves housed within the housing 1. The multiple valves are electrically connected to the PLC 2. A human-machine interface (HMI) 3 is located on the outer surface of the housing 1. The HMI 3 and the PLC 2 are connected via a communication module to control the multiple valves. The PLC 2 is electrically connected to a distributed control system for remote control of the multiple valves. The probe is connected to the transmitter; the probe is used to detect seawater, and the transmitter outputs the detection results from the probe.

[0037] The technical solution of this application achieves remote control of multiple valves and improves the level of automation by introducing a programmable logic controller (PLC) 2, a human-machine interface (HMI) 3, and a communication module. Specifically, the PLC 2 is electrically connected to the distributed control system, allowing operators to remotely control the valves through the distributed system without on-site operation. The HMI 3, connected to the PLC 2 via the communication module, provides an intuitive operating interface, further simplifying the operation process. The placement of probes and transmitters enables the system to monitor the seawater status in real time and feed the detection results back to the control system, ensuring stable system operation. These technical features work together to solve the technical problems of low automation and difficulty in remote control of seawater reverse osmosis solenoid valve boxes.

[0038] In one embodiment, the communication module includes an industrial Ethernet communication interface and a connecting optical fiber, with both ends of the connecting optical fiber connected to the human-machine interface 3 and the programmable logic controller 2 respectively through the industrial Ethernet communication interface.

[0039] The industrial Ethernet communication interface is an industrial communication interface based on Ethernet technology, capable of providing high-speed and stable data transmission. The connecting optical fiber is a medium that uses optical signals for data transmission, offering advantages such as resistance to electromagnetic interference, long transmission distance, and high bandwidth. By combining the industrial Ethernet communication interface with the connecting optical fiber, high-speed and stable communication between the human-machine interface 3 and the programmable logic controller 2 can be achieved.

[0040] Specifically, the industrial Ethernet communication interface can adopt standard Ethernet protocols, such as TCP / IP, to ensure data transmission compatibility and reliability. Preferably, the PN / IE_1 interface (Profinet / IndustrialEthernet interface 1, specifically referring to the industrial Ethernet communication interface integrated into Siemens S7-1200 / 1500 series PLCs) can be used. The connecting optical fiber can be single-mode or multi-mode fiber, depending on the communication distance and bandwidth requirements. For example, in long-distance communication scenarios, single-mode fiber can be used to reduce signal attenuation; while in short-distance, high-bandwidth scenarios, multi-mode fiber can be used to reduce costs.

[0041] In one embodiment, the plurality of valves includes a main control valve and a reverse osmosis inlet valve, a reverse osmosis flushing inlet valve, a reverse osmosis permeate unqualified discharge valve, a reverse osmosis concentrate vent valve, and a permeate valve arranged in series with the main control valve and arranged in parallel in sequence.

[0042] Figure 3 This is a circuit control diagram for multiple valves, where 1SA is the main control valve, SA1 is the switch corresponding to the reverse osmosis feed water valve, SA2 is the switch corresponding to the reverse osmosis flushing feed water valve, SA3 is the switch corresponding to the reverse osmosis permeate unqualified discharge valve, SA4 is the switch corresponding to the reverse osmosis concentrate vent valve, SA5 is the switch corresponding to the permeate valve, and DCS is a distributed control system.

[0043] Specifically, the main control valve acts as the master switch, controlling the fluid flow throughout the entire seawater reverse osmosis system. The reverse osmosis feed valve controls the inflow of seawater, the reverse osmosis flushing feed valve controls the inflow of flushing water, the reverse osmosis permeate wastewater discharge valve discharges substandard permeate, the reverse osmosis concentrate vent valve discharges concentrate, and the permeate valve controls the output of qualified permeate. These valves, arranged in series and parallel, achieve precise control of the fluids at different stages of the seawater reverse osmosis process.

[0044] In a preferred embodiment, the main control valve can be a solenoid valve, controlled by the programmable logic controller 2. The reverse osmosis inlet valve, reverse osmosis flushing inlet valve, reverse osmosis permeate unqualified discharge valve, reverse osmosis concentrate vent valve, and permeate valve can be pneumatic or electric valves, controlled by the programmable logic controller 2.

[0045] This application achieves precise control of fluids at different stages of the seawater reverse osmosis process by setting a main control valve and multiple valves arranged in parallel. The main control valve acts as the master switch, while the multiple valves are responsible for functions such as water intake, flushing, discharge of substandard permeate, discharge of concentrate, and permeate, respectively. This arrangement simplifies the valve control logic and improves the system's operating efficiency.

[0046] In a preferred embodiment, the housing 1 is further equipped with a filter 4 to further enhance the filtration effect of the system and ensure the stability and reliability of the seawater reverse osmosis process. The filter 4 can be a multi-stage filtration device, including a coarse filter and a fine filter, to improve the filtration effect.

[0047] In one embodiment, the transmitter is electrically connected to the programmable logic controller 2 and the distributed control system.

[0048] This connection method enables the transmitter to transmit the detected seawater data to the programmable logic controller 2 (PLC2) and the distributed control system in real time. Specifically, the transmitter transmits the seawater data detected by the probe to the PLC2 via electrical signals, and the PLC2 then transmits this data to the distributed control system, thereby achieving real-time data sharing and remote control.

[0049] In a preferred embodiment, the electrical connection between the transmitter and the programmable logic controller 2 can be achieved through an industrial Ethernet communication interface, while the electrical connection between the programmable logic controller 2 and the distributed control system can be achieved through fiber optic communication. Furthermore, the transmitter can also transmit data with the programmable logic controller 2 via a wireless communication module, thereby reducing wiring complexity and improving system flexibility and scalability.

[0050] In one embodiment, the housing 1 is further provided with a heating branch, which includes a heater 5, a temperature controller 6 and a first circuit breaker 7 located on the same circuit branch. The temperature controller 6 is used to control the heater 5.

[0051] The heating branch provides heat through heater 5 to prevent the valve from freezing in low-temperature environments and ensure its normal operation. Temperature controller 6 monitors and regulates the temperature of heater 5 to ensure adequate heating and avoid overheating or underheating. First circuit breaker 7 protects the circuit from overload or short circuit, ensuring the safe operation of the heating branch. The heating branch solves the problem of operating the seawater reverse osmosis solenoid valve box in low-temperature environments, improving the system's reliability and efficiency.

[0052] Specifically, the heater 5 can be in various forms, such as heating wire or heating tube, to regulate the temperature inside the chamber 1. The temperature controller 6 can be a digital temperature controller or an analog temperature controller, which monitors the temperature inside the chamber 1 in real time through sensors and automatically adjusts the operating status of the heater 5 according to the preset temperature range. The first circuit breaker 7 can be a thermal-magnetic circuit breaker or an electronic circuit breaker to quickly cut off the power supply in the event of an overload or short circuit, protecting the safe operation of the heating branch.

[0053] In one embodiment, the housing 1 is further provided with a lighting branch, which includes a lighting load, a door limit switch and a second circuit breaker 8 located on the same circuit branch.

[0054] The lighting load provides illumination inside cabinet 1. The door limit switch is linked to cabinet door 9; when cabinet door 9 is closed, the door limit switch opens, de-energizing the lighting load; when cabinet door 9 is open, the door limit switch closes, energizing the lighting load. The second circuit breaker 8 automatically disconnects the power supply in case of overload or short circuit, protecting the lighting branch and related equipment.

[0055] Specifically, the lighting branch circuit design achieves automatic control and safety protection of the lighting system by installing lighting loads, door limit switches, and a second circuit breaker 8 within the enclosure 1. The door limit switch is linked to the cabinet door 9. When the cabinet door 9 is closed, the door limit switch opens, cutting off power to the lighting load and ensuring the lighting system will not be accidentally turned on when no one is operating it, saving energy and improving safety. When the cabinet door 9 is open, the door limit switch closes, energizing the lighting load and providing necessary lighting, facilitating operation and maintenance. The second circuit breaker 8 is used to automatically cut off the power supply in case of circuit overload or short circuit, protecting the lighting branch circuit and related equipment.

[0056] The door limit switch is a device used to detect the state of the cabinet door 9. Its working principle is to sense the opening and closing state of the cabinet door 9 mechanically or electronically and convert this state into an electrical signal. The linkage between the cabinet door 9 and the door limit switch can be achieved in several ways. For example, a magnet can be installed on the inside of the cabinet door 9, and a magnetic switch can be installed at a corresponding position on the cabinet body 1. When the cabinet door 9 is closed, the magnet moves closer to the magnetic switch, causing it to open; when the cabinet door 9 is open, the magnet moves away from the magnetic switch, causing it to close. Alternatively, a mechanical linkage mechanism can be used, where the movement of the cabinet door 9 directly drives the contact of the door limit switch.

[0057] In one embodiment, the housing 1 is further provided with a debugging branch, which includes a third circuit breaker 10 and a debugging socket 11 located on the same circuit branch.

[0058] The third circuit breaker 10 is used to protect the commissioning branch, preventing overload or short circuit and ensuring the safety of the commissioning process. The commissioning socket 11 directly provides power to the commissioning equipment, simplifying the power connection operation during the commissioning process and improving commissioning efficiency.

[0059] Specifically, the implementation of the commissioning branch can include the following variations: the commissioning socket 11 can be a standard power socket to be compatible with a variety of commissioning devices; the third circuit breaker 10 can be a thermal-magnetic circuit breaker to provide more accurate overload protection; the commissioning branch can also include indicator lights to display the power status, further improving the convenience of commissioning.

[0060] In one embodiment, the housing 1 is further provided with a valve power supply branch, which is used to supply power to multiple valves, and a fourth circuit breaker is provided on the valve power supply branch.

[0061] Specifically, the valve power supply branch provides a stable power supply to multiple valves through a fourth circuit breaker, ensuring the valves can operate normally. The fourth circuit breaker also acts as a protective mechanism, preventing damage to the valve power supply branch from electrical faults such as overloads or short circuits. By implementing the valve power supply branch and the fourth circuit breaker, the technical challenge of providing a stable power supply to multiple valves is effectively solved, ensuring the reliability and safety of the system.

[0062] In a preferred embodiment, the valve power supply branch may include multiple parallel power output ports, each corresponding to one valve, to ensure that each valve receives an independent power supply. Furthermore, the fourth circuit breaker may be an intelligent circuit breaker with overload and short-circuit protection functions, capable of monitoring the circuit status in real time and automatically cutting off the power supply in abnormal situations, thereby further improving system safety.

[0063] The corresponding circuit diagram is as follows Figure 4 As shown, QF1 is the main circuit breaker, HEATER is the heater, TC1 is the temperature controller, QF3 is the first circuit breaker, EL1 is the lighting load, SW1 is the door limit switch, GF2 is the second circuit breaker, QF4 is the third circuit breaker, SC1 is the debugging socket, QF5 is the fourth circuit breaker, DCS is the distributed control system, and FOU1 is the fuse terminal.

[0064] In one embodiment, the communication module includes an industrial Ethernet communication interface and a connecting optical fiber, with both ends of the connecting optical fiber connected to the human-machine interface 3 and the programmable logic controller 2 respectively through the industrial Ethernet communication interface.

[0065] Obviously, those skilled in the art can make various modifications and variations to this utility model without departing from its spirit and scope. Therefore, if these modifications and variations fall within the scope of the claims of this utility model and their equivalents, this utility model also intends to include these modifications and variations.

Claims

1. A seawater reverse osmosis solenoid valve tank, characterized by, The box comprises a box body and a programmable logic controller, a probe, a transmitter and a plurality of valves arranged in the box body; The plurality of valves are electrically connected with the programmable logic controller; A human-computer interaction interface is arranged on the outer side of the box body, and the human-computer interaction interface and the programmable logic controller are connected through a communication module to control the plurality of valves; The programmable logic controller is electrically connected with a distributed control system to remotely control the plurality of valves through the programmable logic controller; The probe is connected with the transmitter, the probe is used for detecting seawater, and the transmitter is used for outputting the detection result of the probe.

2. The electromagnetic valve box for seawater reverse osmosis according to claim 1, characterized by, The communication module comprises an industrial Ethernet communication interface and a connecting optical fiber, and the two ends of the connecting optical fiber are connected with the human-computer interaction interface and the programmable logic controller through the industrial Ethernet communication interface.

3. The electromagnetic valve box for reverse osmosis of sea water according to claim 1, characterized in that, The plurality of valves comprise a master valve, a reverse osmosis water inlet valve, a reverse osmosis flushing water inlet valve, a reverse osmosis water production unqualified discharge valve, a reverse osmosis concentrated water exhaust valve and a water production valve arranged in series with the master valve and in parallel in sequence.

4. The electromagnetic valve box for reverse osmosis of sea water according to claim 1, wherein The box body is further provided with a filter.

5. The electromagnetic valve box for reverse osmosis of sea water according to claim 1, wherein The transmitter is electrically connected with the programmable logic controller and the distributed control system.

6. The electromagnetic valve box for reverse osmosis of sea water according to claim 1, wherein The box body is further provided with a heating branch, the heating branch comprises a heater, a temperature controller and a first circuit breaker arranged on the same circuit branch, and the temperature controller is used for controlling the heater.

7. The electromagnetic valve box for reverse osmosis of sea water according to claim 1, wherein The box body is further provided with an illumination branch, the illumination branch comprises an illumination load, a door limit switch and a second circuit breaker arranged on the same circuit branch.

8. The electromagnetic valve box for seawater reverse osmosis according to claim 7, characterized in that, The box body is provided with a cabinet door linked with the door limit switch, when the cabinet door is closed, the door limit switch is turned off, and when the cabinet door is opened, the door limit switch is turned on.

9. The electromagnetic valve box for reverse osmosis of sea water according to claim 1, characterized in that, The box body is further provided with a debugging branch, the debugging branch comprises a third circuit breaker and a debugging socket arranged on the same circuit branch.

10. The electromagnetic valve box for reverse osmosis of sea water according to claim 1, characterized in that, The box body is further provided with a valve power supply branch, the valve power supply branch is used for supplying power to the plurality of valves, and the valve power supply branch is provided with a fourth circuit breaker.

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