Automatic switching valve system suitable for steel cylinder gas

Abstract

The invention discloses an automatic switching valve system suitable for steel cylinder gas, and belongs to the technical field of automatic switching valves for steel cylinder gas. Comprising a double-gas-source input module, a pressure detection module, an automatic switching module, a pressure reducing and stabilizing module, an alarm module, an intelligent control and communication module and an output interface module, the double-gas-source input module is used for inputting gas into a steel cylinder, and a main gas source and a standby gas source are provided with one-way valves to prevent gas in the main gas source and the standby gas source from flowing back; the pressure detection module is used for detecting the pressure state of gas in the steel cylinder, each gas source interface is provided with a pressure sensor, the pressure sensors are used for monitoring the pressure state of the main gas source and the pressure state of the standby gas source, and through the arrangement of the automatic switching module and the pressure reducing and stabilizing module, the switching logic and the design of the pressure reducing module are optimized; the gas waste in the switching process is reduced, the energy consumption of equipment is reduced, and the gas utilization efficiency of the system is remarkably improved.

Description

Technical Field

[0001] The invention belongs to the technical field of automatic switching valves for cylinder gas, and in particular relates to an automatic switching valve system suitable for cylinder gas. Background Art

[0002] In industrial production, medical fields and laboratory applications, cylinder gas supply is a common gas supply method with the advantages of high pressure, miniaturization and portability. However, due to the limited capacity of the cylinder, when the gas in the cylinder is exhausted, the gas supply will be interrupted, affecting normal operation and even causing safety accidents. Therefore, a device for automatically switching between the main and backup gas sources, namely the automatic switching valve, has appeared on the market to solve the problem of untimely gas source switching.

[0003] The main advantage of the existing technology is that the automatic switching technology has effectively solved the time-consuming and error-prone problems of manual switching, and is widely used in industrial and medical scenarios; most of the existing switching valves have a certain pressure stability to meet basic gas supply needs, but the disadvantages are: insufficient safety. Mechanical switching valves lack multiple redundant designs. Once the switching fails, the gas supply will be interrupted. Electronically controlled switching valves have the risk of switching failure when the power is off or the sensor fails. There is insufficient information feedback. Existing equipment usually only displays the pressure of a single gas source and cannot monitor the status of the main and backup gas sources in real time, making it difficult for users to detect problems in advance. There is a lack of alarm mechanism. Many devices do not have intelligent alarm functions and only rely on simple switching actions. They cannot remind users to replace gas cylinders when the gas source is about to run out. The maintenance cost is high. The integrated design requires replacement of the entire set of equipment when part of it is damaged, especially when high-pressure pressure reduction and switching components are damaged. The problem is particularly prominent. The lack of intelligence and remote monitoring capabilities. Traditional equipment cannot be connected to the Internet of Things or industrial control systems, and it is difficult to meet the needs of modern industrial intelligent development. Summary of the Invention

[0004] The technical problem to be solved by the present invention is to overcome the shortcomings of the above-mentioned prior art and provide an automatic switching valve system suitable for cylinder gas.

[0005] The technical solution adopted to solve the above technical problems is: an automatic switching valve system suitable for cylinder gas, including a dual gas source input module, a pressure detection module, an automatic switching module, a pressure reducing and stabilizing module, an alarm module, an intelligent control and communication module and an output interface module;

[0006] Dual gas source input module, used to input gas into the cylinder, and both the main gas source and the backup gas source are equipped with a one-way valve to prevent the gas in the main gas source and the backup gas source from flowing back;

[0007] The pressure detection module is used to detect the pressure status of the gas inside the cylinder. Each gas source interface is equipped with a pressure sensor, which is used to monitor the pressure status of the main gas source and the backup gas source in real time;

[0008] Automatic switching module, used for switching the automatic valve of cylinder gas, consists of a solenoid valve and a mechanical switching device, which realize the automatic switching of the main and backup gas sources;

[0009] The pressure reducing and stabilizing module is used to adjust the pressure of the gas inside the cylinder, and the two-stage pressure reducing valve can ensure that the pressure of the gas output from the main gas source and the backup gas source remains stable;

[0010] The alarm module is used to switch the alarm of the valve system. It uses sound and light alarms and early warning logic. The early warning logic will determine that the gas source is about to be exhausted. Then, the sound and light alarm will emit a specific sound and flash the corresponding light to attract the user's attention, prompting the user that the gas source is exhausted or the equipment is faulty.

[0011] Intelligent control and communication module, used for overall control and remote monitoring of the automatic valve system, through the microcontroller and the Industrial Internet of Things II oT interface, for switching valve system overall data processing, switching logic control and remote monitoring;

[0012] The output interface module is used for gas source delivery and connection equipment. It can stably transmit the gas input from the main gas source and the backup gas source to the system through the gas output interface and connect to the user-end equipment.

[0013] Furthermore, the dual gas source input module includes a main gas source unit and a backup gas source unit, which connect the main gas source interface and the backup gas source interface to connect the two gas sources to the system respectively. Each gas source interface is connected to the system through a one-way valve to ensure the correct gas flow direction and avoid reverse flow. A pressure sensor is set between the main gas source and the backup gas source for real-time monitoring of the gas source pressure.

[0014] Through the above technical solution, the modular design enables the switching module, pressure reducing module and alarm module to be independently disassembled, replaced and upgraded, greatly reducing the cost of equipment maintenance and replacement, solving the high cost problem of overall replacement of integrated switching valve equipment due to local damage, and improving the economy and sustainability of the equipment.

[0015] Furthermore, the pressure detection module includes an air source interface unit and a pressure sensor unit. The pressure sensor unit monitors the pressure of the main air source and the backup air source in real time and sends the data to the intelligent control module. When the pressure of the main air source is lower than a predetermined threshold, the intelligent control module receives the signal and determines that it is necessary to switch to the backup air source.

[0016] The above-mentioned technical solution integrates dual-circuit pressure monitoring and overpressure relief devices to ensure real-time control of pressure during the switching of primary and backup gas sources, and prevents equipment damage or gas leakage caused by high pressure or misoperation. It is particularly suitable for high-demand scenarios and meets higher industry standards for equipment safety.

[0017] Furthermore, the automatic switching module includes a solenoid valve unit and a mechanical switching device unit. The automatic switching module realizes the switching of the gas source through the electric control valve unit according to the instructions of the control module. When the electric control system fails, the switching process is carried out through the mechanical switching device unit as a redundant design. When the gas source is switched, the system will automatically open the backup gas source and close the main gas source to ensure uninterrupted gas supply.

[0018] Through the above technical solution, a dual switching mechanism is used to ensure that the backup gas source can be reliably activated when the main gas source pressure is insufficient or the switching system fails, thereby solving the risk of gas supply interruption caused by failure of a single switching method in the existing technology and greatly improving the system's operational reliability and stability.

[0019] Furthermore, the pressure reducing and stabilizing module includes a two-stage pressure reducing valve unit. The switched gas enters the two-stage pressure reducing valve unit and is stably supplied to the downstream equipment after pressure reduction. The pressure reducing valve is divided into two stages. The first stage reduces the gas pressure to the middle level, and the second stage ensures that the gas pressure is stable within the working pressure range required by the system.

[0020] Through the above technical solution, the two-stage pressure reduction design reduces pressure fluctuations during the switching process, ensuring constant gas supply pressure. It is suitable for medical, laboratory and industrial applications with high requirements for gas stability, and overcomes the shortcomings of existing technologies in which unstable pressure during the switching process interferes with downstream equipment and applications.

[0021] Furthermore, the alarm module includes an audible and visual alarm unit and an early warning logic unit. If the system finds that the gas source pressure is too low or a fault occurs during the switching process, the alarm module will issue an alarm through a sound or light signal. At the same time, the intelligent control module will upload the gas source status, pressure changes and alarm information to the remote monitoring system through the IIoT interface for remote viewing and management by the operator.

[0022] Through the above technical solution, real-time display of dual-channel pressure of the main and backup gas sources is achieved, and the intelligent alarm system provides sound and light warnings and remote reminders when the gas source is about to be exhausted. This avoids the problem of users being unable to replace gas cylinders in time due to the lack of real-time monitoring and alarm functions in existing equipment, and improves the continuity of gas supply.

[0023] Furthermore, the intelligent control and communication module includes a microcontroller unit and an industrial Internet of Things II oT interface unit, which can remotely access the system status through a PC, mobile device or industrial Internet of Things platform to monitor the gas source pressure, switching records, and equipment health status. The intelligent control module provides real-time feedback and fault warnings to ensure that operators can deal with problems as soon as possible.

[0024] The above technical solution, equipped with an Industrial Internet of Things (IIoT) II oT interface, supports remote monitoring of gas source status, alarm information upload, and historical data recording, meeting the needs of modern smart factories. It also realizes the upgrade of automatic switching valves from traditional mechanical or electronically controlled equipment to intelligent equipment.

[0025] The beneficial effects of the present invention are as follows: (1) The present invention sets a dual gas source input module, which has wide gas source compatibility and applicability, adopts corrosion-resistant and high-strength materials, and is suitable for a variety of industrial gases such as oxygen, nitrogen, and argon, thereby broadening the scope of application and solving the limitation of material incompatibility of existing equipment in highly corrosive or high-purity gas application scenarios; (2) The present invention sets an automatic switching module and a pressure reducing and stabilizing module, optimizes the switching logic and pressure reducing module design, reduces gas waste in the switching process, reduces the energy consumption of the equipment, and significantly improves the gas utilization efficiency of the system, making it suitable for industrial applications that are sensitive to gas costs. BRIEF DESCRIPTION OF THE DRAWINGS

[0026] Figure 1 This is a structural diagram of the automatic switching valve system for cylinder gas of the present invention;

[0027] Figure 2 This is a schematic diagram of the dual gas source input module system structure of the present invention;

[0028] Figure 3 It is a schematic diagram of the pressure detection module system structure of the present invention;

[0029] Figure 4 It is a schematic diagram of the structure of the automatic switching module system of the present invention;

[0030] Figure 5 This is a schematic diagram of the structure of the pressure reducing and stabilizing module system of the present invention;

[0031] Figure 6 It is a schematic diagram of the structure of the alarm module system of the present invention;

[0032] Figure 7 It is a schematic diagram of the structure of the intelligent control and communication module system of the present invention. DETAILED DESCRIPTION

[0033] In order to make the purpose, technical solutions and advantages of the present invention more clearly understood, the present invention will be further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are only used to explain the present invention and are not intended to limit the present invention.

[0034] like Figure 1 - Figure 7As shown, the present embodiment is an automatic switching valve system suitable for cylinder gas, including a dual gas source input module for inputting gas into the cylinder, and the main gas source and the backup gas source are equipped with a one-way valve to prevent the gas in the main gas source and the backup gas source from flowing back; the dual gas source input module includes a main gas source unit and a backup gas source unit, which are connected to the main gas source interface and the backup gas source interface, and the two gas sources are respectively connected to the system, and each gas source interface is connected to the system through a one-way valve to ensure that the gas flows in the correct direction and avoid reverse flow. A pressure sensor is provided between the main gas source and the backup gas source for real-time monitoring of the gas source pressure; the modular design enables the switching module, the pressure reducing module and the alarm module to be independently disassembled, replaced and upgraded, which greatly reduces the cost of equipment maintenance and replacement, solves the problem of high cost of overall replacement of the integrated switching valve equipment due to local damage, and improves the economy and sustainability of the equipment.

[0035] like Figure 3 As shown, the pressure detection module is used to detect the pressure status of the gas inside the cylinder. Each gas source interface is equipped with a pressure sensor, which is used to monitor the pressure status of the main gas source and the backup gas source in real time. The pressure detection module includes a gas source interface unit and a pressure sensor unit. The pressure sensor unit monitors the pressure of the main gas source and the backup gas source in real time and sends the data to the intelligent control module. When the pressure of the main gas source is lower than the predetermined threshold, the intelligent control module determines that it is necessary to switch to the backup gas source after receiving the signal. The integration of dual-channel pressure monitoring and anti-overpressure relief device ensures real-time controllable pressure during the switching process of the main and backup gas sources, and prevents equipment damage or gas leakage due to high pressure or misoperation. It is especially suitable for high-demand scenarios and meets higher industry standards for equipment safety.

[0036] like Figure 4 As shown, the automatic switching module is used for switching the automatic valve of the cylinder gas, which is composed of a solenoid valve and a mechanical switching device. The solenoid valve and the mechanical switching device realize automatic switching of the main and backup gas sources; the automatic switching module includes a solenoid valve unit and a mechanical switching device unit. The automatic switching module realizes the switching of the gas source through the electric control valve unit according to the instruction of the control module. When the electric control system fails, the switching process is carried out through the mechanical switching device unit as a redundant design. When the gas source is switched, the system will automatically open the backup gas source and close the main gas source to ensure uninterrupted gas supply; through the dual switching mechanism, it is ensured that in the case of insufficient pressure of the main gas source or failure of the switching system, the backup gas source can be reliably enabled, which solves the risk of gas supply interruption caused by failure of a single switching method in the existing technology, and greatly improves the operational reliability and stability of the system.

[0037] like Figure 5As shown, the pressure reducing and stabilizing module is used to adjust the pressure value of the gas inside the cylinder, and the two-stage pressure reducing valve can ensure that the gas output from the main gas source and the backup gas source maintains a stable pressure; the pressure reducing and stabilizing module includes a two-stage pressure reducing valve unit, and the switched gas enters the two-stage pressure reducing valve unit, and is stably supplied to the downstream equipment after pressure reduction. The pressure reducing valve is divided into two stages. The first stage reduces the gas pressure to the middle level, and the second stage ensures that the gas pressure is stable within the working pressure range required by the system; the two-stage pressure reducing design reduces the pressure fluctuation during the switching process and ensures that the gas supply pressure is constant. It is suitable for medical, laboratory and industrial applications with high requirements for gas stability, and overcomes the shortcomings of the existing technology that the switching process causes interference to downstream equipment and applications due to unstable pressure.

[0038] like Figure 6 As shown, the alarm module is used to alarm the switching valve system through an audible and visual alarm and early warning logic. The early warning logic will determine that the gas source is about to be exhausted, and then the audible and visual alarm will emit a specific sound and flash the corresponding light to attract the user's attention, prompting the user that the gas source is exhausted or the equipment is faulty. The alarm module includes an audible and visual alarm unit and an early warning logic unit. If the system finds that the gas source pressure is too low or a fault occurs during the switching process, the alarm module will issue an alarm through a sound or light signal. At the same time, the intelligent control module will upload the gas source status, pressure changes and alarm information to the remote monitoring system through the II oT interface for the operator to remotely view and manage. The real-time display of the dual-channel pressure of the main and standby gas sources is realized, and the intelligent alarm system provides audible and visual warnings and remote reminders when the gas source is about to be exhausted, avoiding the problem that users cannot replace gas cylinders in time due to the lack of real-time monitoring and alarm functions in existing equipment, thereby improving the continuity of gas supply.

[0039] like Figure 7 As shown, the intelligent control and communication module and the output interface module are used for the overall control and remote monitoring of the automatic valve system. Through the microcontroller and the Industrial Internet of Things II oT interface, they are used for data processing, switching logic control and remote monitoring of the entire switching valve system; the intelligent control and communication module includes a microcontroller unit and an Industrial Internet of Things II oT interface unit, which can remotely access the system status through a PC, mobile device or Industrial Internet of Things platform to monitor the gas source pressure, switching records, and equipment health status. The intelligent control module provides real-time feedback and fault warnings to ensure that operators can deal with problems as soon as possible; equipped with an Industrial Internet of Things II oT interface, it supports remote monitoring of gas source status, alarm information upload and historical data recording, meeting the needs of modern smart factories, and realizing the upgrade of automatic switching valves from traditional mechanical or electronic control equipment to intelligent equipment. The output interface module is used for gas source transmission and connection equipment. It can stably transmit the gas input from the main gas source and backup gas source to the system through the gas output interface and connect to the user-end equipment.

[0040] The above description is merely a preferred embodiment of the present invention and is not intended to limit the scope of protection of the present invention.

Claims

1. An automatic switching valve system suitable for cylinder gas, characterized in that: It includes dual gas source input module, pressure detection module, automatic switching module, pressure reducing and stabilizing module, alarm module, intelligent control and communication module and output interface module; Dual gas source input module, used to input gas into the cylinder, and both the main gas source and the backup gas source are equipped with a one-way valve to prevent the gas in the main gas source and the backup gas source from flowing back; The pressure detection module is used to detect the pressure status of the gas inside the cylinder. Each gas source interface is equipped with a pressure sensor, which is used to monitor the pressure status of the main gas source and the backup gas source in real time; Automatic switching module, used for switching the automatic valve of cylinder gas, consists of a solenoid valve and a mechanical switching device, which realizes the automatic switching of the main and standby gas sources; The pressure reducing and stabilizing module is used to adjust the pressure of the gas inside the cylinder, and the two-stage pressure reducing valve can ensure that the pressure of the gas output from the main gas source and the backup gas source remains stable; The alarm module is used to switch the alarm of the valve system. It uses the sound and light alarm and early warning logic. The early warning logic will determine that the gas source is about to be exhausted. Then the sound and light alarm will emit a specific sound and flash the corresponding light to attract the user's attention, reminding the user that the gas source is exhausted or the equipment is faulty. Intelligent control and communication module, used for overall control and remote monitoring of the automatic valve system, through the microcontroller and the Industrial Internet of Things (IIoT) interface, for the overall data processing, switching logic control and remote monitoring of the switching valve system; The output interface module is used for gas source delivery and connection equipment. It can stably transmit the gas input from the main gas source and the backup gas source to the system through the gas output interface and connect to the user-end equipment.

2. The automatic switching valve system for cylinder gas according to claim 1, characterized in that: The dual gas source input module includes a main gas source unit and a backup gas source unit, which connect the main gas source interface and the backup gas source interface to connect the two gas sources to the system respectively. Each gas source interface is connected to the system through a one-way valve to ensure the correct gas flow direction and avoid reverse flow. A pressure sensor is set between the main gas source and the backup gas source to monitor the gas source pressure in real time.

3. The automatic switching valve system for cylinder gas according to claim 1, characterized in that: The pressure detection module includes an air source interface unit and a pressure sensor unit. The pressure sensor unit monitors the pressure of the main air source and the backup air source in real time and sends the data to the intelligent control module. When the pressure of the main air source is lower than a predetermined threshold, the intelligent control module receives a signal and determines that it is necessary to switch to the backup air source.

4. The automatic switching valve system for cylinder gas according to claim 1, characterized in that: The automatic switching module includes a solenoid valve unit and a mechanical switching device unit. The automatic switching module realizes the switching of the gas source through the electric control valve unit according to the instructions of the control module. When the electric control system fails, the switching process is carried out through the mechanical switching device unit as a redundant design. When the gas source is switched, the system will automatically open the backup gas source and close the main gas source to ensure uninterrupted gas supply.

5. The automatic switching valve system for cylinder gas according to claim 1, characterized in that: The pressure reducing and stabilizing module includes a two-stage pressure reducing valve unit. The switched gas enters the two-stage pressure reducing valve unit and is stably supplied to downstream equipment after being reduced in pressure. The pressure reducing valve is divided into two stages. The first stage reduces the gas pressure to a middle level, and the second stage ensures that the gas pressure is stable within the working pressure range required by the system.

6. The automatic switching valve system for cylinder gas according to claim 1, characterized in that: The alarm module includes an audible and visual alarm unit and an early warning logic unit. If the system finds that the gas source pressure is too low or a fault occurs during the switching process, the alarm module will issue an alarm through a sound or light signal. At the same time, the intelligent control module will upload the gas source status, pressure changes and alarm information to the remote monitoring system through the IIoT interface for remote viewing and management by operators.

7. The automatic switching valve system for cylinder gas according to claim 1, characterized in that: The intelligent control and communication module includes a microcontroller unit and an industrial Internet of Things (IIoT) interface unit, which can remotely access the system status through a PC, mobile device or industrial Internet of Things platform to monitor gas source pressure, switching records, and equipment health. The intelligent control module provides real-time feedback and fault warnings to ensure that operators can handle problems as soon as possible.

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