Portable multifunctional electromagnetic valve control box and electromagnetic valve off-line control method

Abstract

The invention provides a portable multifunctional electromagnetic valve control box and an electromagnetic valve offline control method. The portable multifunctional electromagnetic valve control box comprises a box body structure, a voltage regulator, a monitoring module and a plurality of quick connectors. Modularized arrangement is adopted in the box body structure, and a voltage regulator, a monitoring module and a plurality of quick connectors are integrated in the box body structure. And interfaces of a plurality of quick connectors, a display interface of the monitoring module, and a DC output switch and a DC output voltage adjusting knob of the voltage regulator are displayed on the outer side surface of the box body structure. And the voltage regulator is connected with the power supply AC220V control switch, the monitoring module and the quick connector. The interfaces of the plurality of quick connectors comprise a DC output socket, an AC 220V output interface and a DC output interface. A plurality of quick connectors are arranged, and the voltage regulator is used for adjusting the power supply voltage to the corresponding voltage grade according to the working voltage grade of the electromagnetic valve by an operator, so that the technical problems that a traditional electromagnetic valve offline control method is limited in voltage regulation range, poor in interface compatibility and insufficient in portability are solved.

Description

Technical Field

[0001] This application belongs to the field of electrical control technology, specifically relating to a portable multi-functional solenoid valve control box and an offline solenoid valve control method. Background Technology

[0002] Solenoid valves are industrial devices used for electromagnetic control. They are fundamental components of automation used to control fluids and belong to the category of actuators. They are widely used in industrial control systems to adjust the direction, flow rate, speed, and other parameters of the medium. Solenoid valves can be used with different circuits to achieve the desired control, ensuring both precision and flexibility. In the nuclear power field, solenoid valves are commonly used in pilot-operated safety valve assemblies to control the operation of the pilot valve. In actual maintenance work, according to the requirements of the preventive maintenance cycle, it is necessary to perform operational tests on solenoid valves during offline maintenance. Because different pilot-operated safety valve assemblies use different power supply levels and interfaces, the current control method has the following problems: Limited voltage regulation range: In traditional offline control methods for solenoid valves, the power supply used has a fixed output voltage range, which cannot meet the flexible adjustment requirements of multiple scenarios; Poor interface compatibility: The interface is of a single type and has poor compatibility. The single connector type is difficult to adapt to the quick connection requirements of different solenoid valves. Insufficient portability: The equipment is large and heavy, making it difficult to meet the needs of on-site mobile testing. Summary of the Invention

[0003] In view of this, this application provides a portable multi-functional solenoid valve control box and an offline solenoid valve control method. By setting multiple quick connectors and a voltage regulator for the operator to adjust the power supply voltage to the corresponding voltage level according to the operating voltage level of the solenoid valve, the technical problems of limited voltage adjustment range, poor interface compatibility and insufficient portability of traditional offline solenoid valve control methods are solved.

[0004] This application provides a portable multi-functional solenoid valve control box, which includes a box structure, a voltage regulator, a monitoring module, and multiple quick connectors. The box structure has a modular internal layout, integrating the voltage regulator, monitoring module, and multiple quick connectors. The external surface of the box structure displays the interfaces of the multiple quick connectors, the display interface of the monitoring module, and the DC output switch and DC output voltage adjustment knob of the voltage regulator. The voltage regulator connects to the AC220V power supply control switch, monitoring module, and quick connectors, allowing the operator to adjust the supply voltage to the corresponding voltage level according to the operating voltage level of the solenoid valve. The interfaces of the multiple quick connectors include a DC output socket, an AC220V output interface, and a DC output interface. The quick connectors are used to connect the solenoid heads of different solenoid valves to the output terminals of the voltage regulator. The monitoring module is used to monitor the voltage and current applied to the solenoid valve.

[0005] In one specific embodiment of this application, the voltage regulator includes an AC / DC voltage regulator and a multi-turn potentiometer. The multi-turn potentiometer is connected between the DC output voltage adjustment knob and the AC / DC voltage regulator. The voltage regulator is internally divided into two parts: one part is a solenoid valve that directly connects to the AC220V operating voltage through the AC220V output interface; the other part is a DC circuit, which contains a rectifier circuit and a voltage regulating circuit. Under normal circumstances, after the voltage regulator receives the AC220V operating voltage, the internal rectifier circuit converts the AC220V operating voltage to a DC220V operating voltage, and the DC220V operating voltage is then adjusted by the internal multi-turn potentiometer to regulate the output voltage.

[0006] In one specific embodiment of this application, the AC / DC voltage regulator supports a calibration accuracy of ±10% and has short-circuit protection.

[0007] In one specific embodiment of this application, the output voltage range after adjustment by the multi-turn potentiometer is DC24V to DC220V.

[0008] In one specific embodiment of this application, the outer side of the enclosure structure also shows an AC220V power input socket 1. The AC220V power input socket 1 is used to connect an AC220V power cord.

[0009] In one specific embodiment of this application, the portable multi-functional solenoid valve control box further includes a cooling fan. The cooling fan is installed inside the box structure. A cooling fan outlet is provided on the outer side of the box structure.

[0010] In one specific embodiment of this application, the monitoring module comprises a voltmeter and an ammeter. The voltmeter is used to monitor the voltage applied to the solenoid valve. The ammeter is used to monitor the current applied to the solenoid valve.

[0011] In one specific embodiment of this application, the monitoring module is a display screen. The display screen is a dual-row display screen composed of OLEDs, including a DC output load current value display screen and a DC output voltage value display screen. The DC output load current value display screen is used to display the current applied to the solenoid valve. The DC output voltage value display screen is used to display the voltage applied to the solenoid valve.

[0012] In one specific embodiment of this application, the quick connector is a pluggable quick connector.

[0013] In one specific embodiment of this application, the portable multi-functional solenoid valve control box further includes a residual current device (RCD). The RCD is connected between the AC220V power supply control switch and the voltage regulator. The RCD is used to control the AC220V power supply control switch to shut off in the event of a leakage current.

[0014] The second aspect of this application provides an offline control method for a solenoid valve, implemented using a portable multifunctional solenoid valve control box as described in the first aspect of this application. This offline control method for the solenoid valve includes: Step S10: With the power supply connected, turn on the AC220V power supply control switch, and the power indicator light will illuminate; Step S20: Select the corresponding quick-connect adapter cable according to the type of electromagnetic head power plug to be controlled; Step S30: Connect one side of the adapter cable to the quick plug and the other side of the adapter cable to the downstream electromagnetic head to ensure the circuit connection is complete; Step S40: Select the corresponding voltage level according to the working voltage level of the solenoid valve by using the DC output voltage adjustment knob, and determine the specific adjustment value according to the voltage monitored by the monitoring module to ensure that the power supply voltage meets the working voltage level of the solenoid head. Step S50: Click the DC output switch; the circuit is now connected. Step S60: Observe the operation of the solenoid valve to see if it opens normally, and read and record the operating current value through the monitoring module; Step S70: Click the DC output switch again. At this time, the circuit is disconnected, the solenoid head of the solenoid valve loses power, and the solenoid valve returns to its original position. Step S80: Turn off the AC220V power supply control switch, the power indicator light will turn off, and the portable multi-functional solenoid valve control box and upstream circuit will be disconnected.

[0015] The beneficial effects of this technical solution are as follows: By setting multiple quick connectors, and with a voltage regulator allowing the operator to adjust the power supply voltage to the corresponding voltage level according to the working voltage level of the solenoid valve, different downstream solenoid valves can be connected to this portable multi-functional solenoid valve control box using multiple quick connectors. By adjusting the output voltage using the voltage regulator, this portable multi-functional solenoid valve control box can be adapted to the working requirements of different solenoid valves, achieving "one box for multiple uses." Furthermore, by placing the internal circuitry of the voltage regulator, quick connectors, monitoring module, etc., in a modular arrangement within the box structure, the box structure is miniaturized, and the overall portable multi-functional solenoid valve control box adopts a portable integrated structure design, facilitating on-site mobile operation, improving work efficiency, ensuring safety and reliability, and making it convenient to carry and transport. Attached Figure Description

[0016] Figure 1 The diagram shown is a block diagram of a portable multi-functional solenoid valve control box provided in an embodiment of this application.

[0017] Figure 2 The image shown is an interface diagram of a portable multi-functional solenoid valve control box provided in an embodiment of this application.

[0018] Figure 3 The diagram shown is an electrical schematic of a portable multi-functional solenoid valve control box according to an embodiment of this application.

[0019] In the diagram, 1-Power supply AC220V input socket, 2-Power supply AC220V control switch, 3-Residual current device, 4-Cooling fan outlet, 5-DC output socket, 6-DC output load current display, 7-DC output voltage display, 8-AC220V output interface, 9-DC output interface, 10-DC output switch, 11-DC output voltage adjustment knob. Detailed Implementation

[0020] The technical solutions of the embodiments of this application will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this application, and not all embodiments. Based on the embodiments of this application, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this application.

[0021] At least one embodiment of this application provides a portable multi-functional solenoid valve control box, which can be applied in scenarios such as nuclear power plants and industrial automation, featuring wide-range adjustable DC voltage output, fast interface adaptation, and high-precision display. This portable multi-functional solenoid valve control box can be simply referred to as a solenoid valve control box.

[0022] refer to Figures 1 to 3 This portable multi-functional solenoid valve control box includes a housing structure, a voltage regulator, a monitoring module, and multiple quick connectors. The housing structure features a modular layout, integrating the voltage regulator, monitoring module, and multiple quick connectors. The exterior of the housing structure displays the interfaces of the multiple quick connectors, the display interface of the monitoring module, and the DC output switch 10 and DC output voltage adjustment knob 11 of the voltage regulator. The voltage regulator connects to the AC220V power supply control switch 2, the monitoring module, and the quick connectors, allowing the operator to adjust the supply voltage to the corresponding voltage level according to the solenoid valve's operating voltage rating. The interfaces of the multiple quick connectors include a DC output socket 5, an AC220V output interface 8, and a DC output interface 9. The quick connectors are used to connect the solenoid heads of different solenoid valves to the output terminals of the voltage regulator. The monitoring module is used to monitor the voltage and current applied to the solenoid valve.

[0023] It should be noted that interface compatibility can be improved through the design of quick connectors and adapters. The interfaces of various quick connectors can be configured according to the on-site usage scenarios and equipment conditions. For example, in some embodiments, the forms of various quick connector interfaces include, but are not limited to, square and circular shapes.

[0024] This embodiment of the application incorporates multiple quick-connect couplings, and a voltage regulator allows the operator to adjust the supply voltage to the corresponding operating voltage level of the solenoid valve. This enables the connection of different downstream solenoid valves to the portable multi-functional solenoid valve control box using these quick-connect couplings. By adjusting the output voltage using the voltage regulator, the portable multi-functional solenoid valve control box can be adapted to the operating requirements of different solenoid valves, achieving "one box, multiple uses." Furthermore, by modularly arranging the internal circuitry of the voltage regulator, quick-connect couplings, monitoring module, etc., within the box structure, a miniaturized design is achieved. This allows the portable multi-functional solenoid valve control box to adopt a portable, integrated structure design, facilitating on-site mobile operation, improving work efficiency, ensuring safety and reliability, and providing convenient carrying and transport.

[0025] In at least one embodiment of this application, the voltage regulator includes an AC / DC voltage regulator and a multi-turn potentiometer. The multi-turn potentiometer is connected between the DC output voltage adjustment knob 11 and the AC / DC voltage regulator. The voltage regulator is internally divided into two parts: one part is a solenoid valve that directly connects to the AC220V operating voltage via the AC220V output interface 8; the other part is a DC circuit, which contains a rectifier circuit and a voltage regulation circuit. Under normal circumstances, after the voltage regulator receives the AC220V operating voltage, the internal rectifier circuit converts the AC220V operating voltage to a DC220V operating voltage. The DC220V operating voltage is then adjusted by the internal multi-turn potentiometer to regulate the output voltage. The DC output voltage adjustment knob 11 is used to control the AC / DC voltage regulator and the multi-turn potentiometer.

[0026] It should be noted that both DC output socket 5 and DC output interface 9 are in the DC circuit, and their main function is to adapt to solenoid valves with different interfaces.

[0027] In at least one embodiment of this application, the AC / DC voltage regulator supports a calibration accuracy of ±10% and has short-circuit protection. This improves the safety and reliability of the portable multi-functional solenoid valve control box.

[0028] In at least one embodiment of this application, the output voltage range after adjustment by the multi-turn potentiometer is from DC24V to DC220V. This results in a wide output voltage range, suitable for the operating requirements of different solenoid valves, achieving "one box for multiple uses".

[0029] Specifically, the output voltage can be adjusted from DC24V to DC220V based on the preset number of internal potentiometer coils.

[0030] In at least one embodiment of this application, reference is made to Figure 2 and Figure 3 The outer side of the enclosure also shows an AC220V power input socket 1. This AC220V power input socket 1 is used to connect an AC220V power cord. Thus, by connecting the AC220V power cord to the AC220V power input socket 1, the upstream power supply and the portable multi-functional solenoid valve control box are connected, ensuring that the portable multi-functional solenoid valve control box is powered.

[0031] It should be noted that the power supply can also be directly installed inside the enclosure structure, in which case there is no need to install an additional AC220V power supply input socket 1.

[0032] In at least one embodiment of this application, the portable multi-functional solenoid valve control box further includes a cooling fan. The cooling fan is installed inside the box structure. The outer side of the box structure has a cooling fan outlet 4. This avoids excessively high temperatures inside the box structure, which could cause high-temperature damage to components such as voltage regulators and monitoring modules, and extends the service life of these components.

[0033] In at least one embodiment of this application, the monitoring module comprises a voltmeter and an ammeter. The voltmeter is used to monitor the voltage applied to the solenoid valve. The ammeter is used to monitor the current applied to the solenoid valve.

[0034] In at least one embodiment of this application, the monitoring module is a display screen. The display screen is a dual-row display screen composed of OLEDs, and the dual-row display screen includes a DC output load current value display screen 6 and a DC output voltage value display screen 7. The DC output load current value display screen 6 is used to display the current applied to the solenoid valve. The DC output voltage value display screen 7 is used to display the voltage applied to the solenoid valve.

[0035] For example, the display screen has a resolution of 1%.

[0036] In this embodiment, a display screen with voltage / current display function is set in the portable multi-functional solenoid valve control box. The display screen provides visual monitoring, eliminating the need to install additional ammeters and voltmeters to monitor the working status of the solenoid valve. Furthermore, the dual parameters (voltage / current) are displayed in real time, and the short-circuit protection response time is fast.

[0037] In at least one embodiment of this application, the quick connector is a pluggable quick connector. Thus, by using a pluggable quick connector for the quick interface, the solenoid head of the solenoid valve can be directly plugged into the portable multi-functional solenoid valve control box, further improving on-site efficiency and safety.

[0038] Further investigation revealed that some circuits in traditional solenoid valve control methods, coupled with the existing sub-components, lack active safety protection mechanisms, making them prone to damage to the equipment or solenoid valve, resulting in insufficient reliability and safety. Based on this finding, in at least one embodiment of this application, the portable multi-functional solenoid valve control box also includes a residual current device (RCD) 3. The RCD 3 is connected between the AC220V power supply control switch 2 and the voltage regulator. The RCD 3 is used to control the AC220V power supply control switch 2 to shut off in the event of a leakage current. This improves the reliability and safety of the portable multi-functional solenoid valve control box.

[0039] For example, the residual current device 3 is connected between the AC220V power supply control switch 2 and the AC / DC voltage regulator in the voltage regulator. (Reference) Figure 3The power supply is AC220V. The control switch 2 includes a filter and two switches connected to the filter. The residual current device 3 is connected between the filter and the AC / DC voltage regulator.

[0040] The above embodiments provide a solenoid valve control box with adjustable DC output voltage, support for multiple fast interfaces, portable enclosure structure, and compliance with relevant safety requirements, which can meet the solenoid valve detection and control requirements in complex scenarios such as nuclear power plants.

[0041] At least one embodiment of this application also provides an offline control method for a solenoid valve, which is implemented using a portable multi-functional solenoid valve control box as described in the above embodiments. The offline control method for the solenoid valve includes the following steps.

[0042] Step S10: With the power supply connected, turn on the AC220V power supply control switch 2, and the power indicator light will illuminate.

[0043] For example, connect the AC220V power cord to the AC220V input socket 1 to connect the upstream power supply to the portable multi-functional solenoid valve control box, ensuring that the portable multi-functional solenoid valve control box is powered; turn on the AC220V control switch 2, and the power indicator light will illuminate.

[0044] Step S20: Select the corresponding quick-connect adapter cable according to the type of electromagnetic head power plug to be controlled.

[0045] It should be noted that the quick-connect plug includes, but is not limited to, DC output socket 5, AC220V output interface 8, and DC output interface 9. The adapter cable is used to connect the downstream solenoid head.

[0046] Step S30: Connect one side of the adapter cable to the quick plug and the other side of the adapter cable to the downstream electromagnetic head to ensure the circuit connection is complete.

[0047] Step S40: Select the corresponding voltage level according to the working voltage level of the solenoid valve by using the DC output voltage adjustment knob 11. At the same time, determine the specific adjustment value according to the voltage monitored by the monitoring module to ensure that the power supply voltage meets the working voltage level of the solenoid head.

[0048] It should be noted that step S40 can prevent the electromagnetic head from experiencing undervoltage or overvoltage when the subsequent circuit is connected.

[0049] Step S50: Click DC output switch 10, and the circuit will be connected.

[0050] Step S60: Observe the operation of the solenoid valve to see if it opens normally, and read and record the operating current value through the monitoring module.

[0051] For example, the operating current value can be read and recorded through the DC output load current value display 6.

[0052] Step S70: Click the DC output switch 10 again. At this time, the circuit is disconnected, the solenoid head of the solenoid valve loses power, and the solenoid valve returns to its original position.

[0053] Step S80: Turn off the AC220V power supply control switch 2, the power indicator light will turn off, and the portable multi-functional solenoid valve control box and upstream circuit will be disconnected.

[0054] After step S80, the process may further include unplugging the power cord supplying the portable multi-functional solenoid valve control box to ensure that there is no physical connection between the portable multi-functional solenoid valve control box and the upstream circuit; unplugging the wiring between the downstream solenoid head and the portable multi-functional solenoid valve control box; ending the test; and storing the test device properly.

[0055] This offline control method for the solenoid valve corresponds to the method of the portable multi-functional solenoid valve control box in the above embodiments. It includes all the technical features of the portable multi-functional solenoid valve control box in the above embodiments and can achieve the corresponding technical effects, which will not be repeated here.

[0056] It should be noted that the combination of the technical features in the embodiments of this application is not limited to the combination methods described in the embodiments of this application or the combination methods described in specific embodiments. All technical features described in this application can be freely combined or combined in any way, unless they contradict each other.

[0057] As indicated in this application and claims, unless the context clearly indicates otherwise, the words "a," "an," and / or "the" do not specifically refer to the singular and may also include the plural. Generally speaking, the term "comprising" only indicates that it includes the explicitly identified steps and elements, which do not constitute an exclusive list, and the method or apparatus may also include other steps or elements.

[0058] The above description is merely a preferred embodiment of this application and is not intended to limit this application. Any modifications or equivalent substitutions made within the spirit and principles of this application should be included within the protection scope of this application.

Claims

1. A portable multi-functional solenoid valve control box, characterized in that, Includes enclosure structure, voltage regulator, monitoring module and multiple quick connectors, The internal structure of the enclosure features a modular layout, integrating a voltage regulator, a monitoring module, and multiple quick connectors. The exterior of the enclosure displays the interfaces of these quick connectors, the monitoring module's display interface, and the voltage regulator's DC output switch and DC output voltage adjustment knob. The voltage regulator connects to the AC220V power supply control switch, the monitoring module, and the quick connectors, allowing the operator to adjust the power supply voltage to the corresponding operating voltage level of the solenoid valve. The quick connectors include a DC output socket, an AC220V output interface, and a DC output interface. These quick connectors connect the solenoid heads of different solenoid valves to the output terminals of the voltage regulator. The monitoring module monitors the voltage and current applied to the solenoid valves.

2. The portable multi-functional solenoid valve control box according to claim 1, characterized in that, The voltage regulator includes an AC / DC voltage regulator and a multi-turn potentiometer. The multi-turn potentiometer is connected between the DC output voltage adjustment knob and the AC / DC voltage regulator. The voltage regulator is divided into two parts: one part is a solenoid valve that directly connects to the AC220V working voltage through the AC220V output interface; the other part is a DC circuit, which contains a rectifier circuit and a voltage regulation circuit. Under normal circumstances, after the voltage regulator is connected to the AC220V working voltage, the internal rectifier circuit converts the AC220V working voltage to the DC220V working voltage. The DC220V working voltage is then adjusted by the internal multi-turn potentiometer to regulate the output voltage.

3. A portable multifunctional solenoid valve control box according to claim 2, characterized in that, The AC / DC voltage regulator supports ±10% calibration accuracy and has short-circuit protection.

4. A portable multifunctional solenoid valve control box according to claim 2, characterized in that, The output voltage range after adjustment by the multi-turn potentiometer is from DC24V to DC220V.

5. A portable multi-functional solenoid valve control box according to claim 1, characterized in that, The outer side of the enclosure also shows an AC220V power input socket 1, which is used to connect an AC220V power cord.

6. A portable multi-functional solenoid valve control box according to claim 1, characterized in that, It also includes a cooling fan, which is installed inside the housing structure, and the outer side of the housing structure has a cooling fan outlet corresponding to the cooling fan.

7. A portable multi-functional solenoid valve control box according to claim 1, characterized in that, The monitoring module consists of a voltmeter and an ammeter. The voltmeter is used to monitor the voltage applied to the solenoid valve, and the ammeter is used to monitor the current applied to the solenoid valve.

8. A portable multifunctional solenoid valve control box according to claim 1, characterized in that, The monitoring module is a display screen, which is a dual-row display screen composed of OLEDs. The dual-row display screen includes a DC output load current value display screen and a DC output voltage value display screen. The DC output load current value display screen is used to display the current applied to the solenoid valve, and the DC output voltage value display screen is used to display the voltage applied to the solenoid valve.

9. A portable multi-functional solenoid valve control box according to any one of claims 1 to 8, characterized in that, It also includes a residual current device (RCD), which is connected between the AC220V power supply control switch and the voltage regulator. The RCD is used to control the AC220V power supply control switch to shut down when there is a leakage.

10. An offline control method for a solenoid valve, characterized in that, The method is implemented using a portable multi-functional solenoid valve control box as described in any one of claims 1 to 9, wherein the solenoid valve offline control method includes: Step S10: With the power supply connected, turn on the AC220V power supply control switch, and the power indicator light will illuminate; Step S20: Select the corresponding quick-connect adapter cable according to the type of electromagnetic head power plug to be controlled; Step S30: Connect one side of the adapter cable to the quick plug and the other side of the adapter cable to the downstream electromagnetic head to ensure the circuit connection is complete; Step S40: Select the corresponding voltage level according to the working voltage level of the solenoid valve by using the DC output voltage adjustment knob, and determine the specific adjustment value according to the voltage monitored by the monitoring module to ensure that the power supply voltage meets the working voltage level of the solenoid head. Step S50: Click the DC output switch; the circuit is now connected. Step S60: Observe the operation of the solenoid valve to see if it opens normally, and read and record the operating current value through the monitoring module; Step S70: Click the DC output switch again. At this time, the circuit is disconnected, the solenoid head of the solenoid valve loses power, and the solenoid valve returns to its original position. Step S80: Turn off the AC220V power supply control switch, the power indicator light will turn off, and the portable multi-functional solenoid valve control box and upstream circuit will be disconnected.

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