Safety control system for intelligent preparation of standard gas

Abstract

The invention relates to the field of standard gas preparation, and provides an intelligent standard gas preparation safety control system. The main loop serves as a main body for gas mixing preparation; the control module is connected with the cloud server, receives and checks the operation state and sends a control instruction through artificial intelligence diagnosis; the communication gateway is used for the main loop to send the state information to a cloud server and receive a control instruction; and the upper control computer is connected with the communication gateway and is used for collecting the operation state information of the main loop and receiving an instruction to control the operation state of the main loop. By arranging the gas monitoring camera and the pressure sensor, whether abnormal conditions such as gas leakage and overpressure exist in a main loop or not can be monitored in real time, when the abnormal conditions are detected, automatic response, alarm giving, automatic valve closing and shutdown are carried out in time, and an exhaust fan and a buzzing alarm are started; the negative influence of gas leakage can be reduced to the maximum extent, and the effect of guaranteeing personnel safety is achieved.

Description

Technical Field

[0001] The present invention relates to the field of standard gas preparation, and in particular to a standard gas intelligent preparation safety control system. Background Art

[0002] There are many kinds of standard gases, which are usually manually configured in accordance with GB / T 5274.1-2018 "Preparation of mixed gases for gas analysis calibration Part 1: Preparation of primary mixed gases by weighing method". Multiple gases need to be filled in a certain proportion and sequence. This filling process is called "gas distribution", and the gas being filled is called component gas. In the automatic gas distribution process, it is necessary to fully ensure the safety of the system to prevent safety accidents caused by gas leakage, overfilling, etc. The traditional manual preparation method has certain safety hazards, especially the explosion range of the mixed gas expands with the increase of pressure, some preparation components that can undergo disproportionation reaction, and the filling speed is too fast, which may cause gas leakage, overfilling, etc., which may be ignored by the operator or not seriously paid attention to and cause safety accidents. Summary of the invention

[0003] In view of the deficiencies in the prior art, the present invention provides a standard gas intelligent preparation safety control system, which solves the problem that gas leakage, overcharging, etc. may be ignored or not seriously paid attention to by the operator and cause safety accidents.

[0004] To achieve the above objectives, the present invention is implemented through the following technical solutions: a standard gas intelligent preparation safety control system, characterized in that it includes:

[0005] The main circuit, which serves as the main body of gas mixing preparation;

[0006] The control module is connected to the cloud server, receives and checks the operating status and sends control instructions through artificial intelligence diagnosis;

[0007] A communication gateway, which is used for the main loop to send status information to the cloud server and receive control instructions;

[0008] The upper control machine is connected to the communication gateway and is used to collect the main circuit operation status information and receive instructions to control the main circuit operation status;

[0009] The upper control machine is connected to a gas monitoring unit, a pressure detection unit, a valve control unit and an alarm exhaust unit;

[0010] The gas monitoring unit is used to monitor whether there is gas leakage in the main circuit;

[0011] The pressure detection unit is used to detect the pressure change of the main circuit;

[0012] The valve control unit is used to control all valves on the main circuit;

[0013] The alarm exhaust unit is used to sound an alarm and exhaust air to alert relevant personnel.

[0014] Preferably, the gas monitoring unit includes a gas monitoring camera and an infrared detector. The gas monitoring camera is installed outside the main circuit, and its field of view covers the entire main circuit to monitor gas leakage. The infrared detector is installed outside the main circuit to measure the temperature change of the filled bottle during the filling process to assist in determining whether it is overfilled.

[0015] Preferably, the pressure detection unit comprises a pressure sensor, and the pressure sensor is installed on the main circuit.

[0016] Preferably, the valve control unit comprises an electric valve and a pneumatic valve, and the electric valve is installed in an explosion-proof electrical cabinet to control the pneumatic valve.

[0017] Preferably, a plurality of pneumatic valves are provided on the main circuit for controlling gas entry, branch one and branch two are provided on the main circuit, a pneumatic valve is provided on branch one, a safety valve is provided on branch two, one end of each of branch one and branch two is installed with a one-way valve, one end of the one-way valve is provided with a waste discharge circuit, and one end of the waste discharge circuit is provided with a waste gas pool.

[0018] Preferably, the alarm exhaust unit comprises:

[0019] Buzzer alarm: The buzzer alarm is installed in the workshop where the main circuit is located, and it will sound an alarm in case of abnormal pressure and gas leakage;

[0020] Exhaust fans: Multiple exhaust fans are installed in the workshop where the main circuit is located to quickly exhaust gas in case of gas leakage.

[0021] Preferably, the control module includes a mobile phone and a personal computer, and the mobile phone and the personal computer are connected to a cloud server to check the operating status of the entire system, receive system alarm information, and send control instructions to the system.

[0022] Working principle: First, open the pneumatic valve on the main circuit to allow gas to enter the main circuit for gas distribution. During the inflation process, the pressure sensor monitors the pressure changes in the pipeline in real time and transmits the data to the upper control machine. At the same time, the gas monitoring camera monitors whether there is gas leakage in the pipeline in real time to ensure the ratio and safety of the mixed gas. When the gas monitoring camera detects a leak, the system will immediately close all valves on the gas distribution pipeline, stop the gas distribution process, and start the exhaust fan to quickly remove the leaked gas. At the same time, the buzzer alarm will sound an alarm to remind the operator to check. When the pressure sensor detects that the pressure exceeds the standard, the system will open the pneumatic valve of branch one. The valve releases part of the pressure, and the pressure continues to rise to the opening pressure of the safety valve. The safety valve will automatically open to release the pressure, and the buzzer alarm will sound an alarm. The upper control machine maintains connection with the cloud server through the communication gateway. All operating status, alarm information and diagnostic results will be uploaded to the cloud server in real time. The operator can check the operating status of the system at any time through a mobile phone or personal computer, and receive the system's alarm information. The data and results after each processing will be fed back to the artificial intelligence module. The artificial intelligence self-learning continuously optimizes the diagnostic algorithm and response strategy, improves the response speed and processing accuracy to abnormal situations, and enhances overall safety and reliability.

[0023] The present invention provides a safety control system for intelligent preparation of standard gas, which has the following beneficial effects:

[0024] 1. The present invention is equipped with a gas monitoring camera and a pressure sensor to monitor in real time whether there are abnormal conditions such as gas leakage and overpressure in the main circuit. When an abnormality is detected, it will automatically respond in time, sound an alarm, automatically close the valve, shut down, and start the exhaust fan and buzzer alarm, which can minimize the negative impact of gas leakage and ensure the safety of personnel.

[0025] 2. The present invention opens the pneumatic valve on branch one when the pressure sensor detects that the pressure of the main circuit increases, and the gas enters branch one to reduce the pressure of the main circuit. The gas is discharged into the exhaust circuit through the one-way valve and enters the exhaust gas pool. When the pressure increases, the pneumatic valve on branch one does not open due to equipment failure, and the pressure continues to rise. Finally, the pressure of the gas distribution pipeline reaches the opening pressure of the safety valve, so that the gas enters the one-way valve through branch two and is discharged into the exhaust gas pool.

[0026] 3. The present invention avoids the risk of gas explosion caused by electric sparks by replacing the electric valve with a pneumatic valve and installing the electric valve in an explosion-proof electrical cabinet. BRIEF DESCRIPTION OF THE DRAWINGS

[0027] Figure 1 It is a schematic diagram of the system structure of the present invention;

[0028] Figure 2 It is a gas path schematic diagram of the present invention. DETAILED DESCRIPTION

[0029] The following will be combined with the drawings in the specification of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0030] Please refer to the attached Figure 1 - Attachment Figure 2 , an embodiment of the present invention provides a standard gas intelligent preparation safety control system, including:

[0031] The main circuit, which serves as the main body of gas mixing preparation;

[0032] The control module is connected to the cloud server, receives and checks the operating status and sends control instructions through artificial intelligence diagnosis;

[0033] A communication gateway, which is used for the main loop to send status information to the cloud server and receive control instructions;

[0034] The upper control machine is connected to the communication gateway and is used to collect the main circuit operation status information and receive instructions to control the main circuit operation status;

[0035] The upper control machine is connected to a gas monitoring unit, a pressure detection unit, a valve control unit and an alarm exhaust unit;

[0036] The gas monitoring unit is used to monitor whether there is gas leakage in the main circuit;

[0037] The pressure detection unit is used to detect the pressure change of the main circuit;

[0038] The valve control unit is used to control all valves on the main circuit;

[0039] The alarm exhaust unit is used to sound an alarm and exhaust air to alert relevant personnel.

[0040] The gas monitoring unit comprises a gas monitoring camera, which is installed outside the main circuit and has a field of view covering the entire main circuit to monitor gas leakage.

[0041] The pressure detection unit includes a pressure sensor, and the pressure sensor is installed on the main circuit.

[0042] The valve control unit comprises an electric valve and a pneumatic valve. The electric valve is installed in an explosion-proof electrical cabinet to control the pneumatic valve.

[0043] The main circuit is provided with multiple pneumatic valves for controlling gas entry, the main circuit is provided with branch one and branch two, branch one is provided with a pneumatic valve, branch two is provided with a safety valve, one end of branch one and branch two are both installed with a one-way valve, one end of the one-way valve is provided with a waste discharge circuit, and one end of the waste discharge circuit is provided with a waste gas pool.

[0044] The alarm exhaust unit comprises:

[0045] Buzzer alarm: The buzzer alarm is installed in the workshop where the main circuit is located, and it will sound an alarm in case of abnormal pressure and gas leakage;

[0046] Exhaust fans: Multiple exhaust fans are installed in the workshop where the main circuit is located to quickly exhaust gas in case of gas leakage.

[0047] The control module includes a mobile phone and a personal computer, which are connected to a cloud server to check the operating status of the entire system, receive system alarm information, and send control instructions to the system;

[0048] Specifically, during the inflation process, the pressure sensor monitors the pressure changes in the pipeline in real time and transmits the data to the upper control machine. At the same time, the gas monitoring camera monitors whether there is gas leakage in the pipeline in real time to ensure the ratio and safety of the mixed gas. When the gas monitoring camera detects a leak, the system will immediately close all valves on the gas distribution pipeline, stop the gas distribution process, and start the exhaust fan to quickly remove the leaked gas. At the same time, the buzzer alarm will sound an alarm to remind the operator to check. When the pressure sensor detects that the pressure exceeds the standard, the system will release part of the pressure by opening the pneumatic valve of branch one. The pressure continues to rise to the opening pressure of the safety valve. The safety valve will automatically open to relieve the pressure, and the buzzer alarm will sound an alarm.

[0049] Embodiment 1:

[0050] When the detection pressure is lower than the standard value;

[0051] When the pressure sensor detects that the pressure is lower than the standard value, the pressure information is uploaded to the cloud server through the communication gateway and transmitted to mobile phones and personal computers. Artificial intelligence is used to diagnose whether there is a gas leak and send control instructions to immediately close all valves in the main circuit, shut down the gas distribution system, start the exhaust fan, and immediately sound an alarm on the buzzer alarm to notify relevant operators for further inspection and processing.

[0052] Embodiment 2:

[0053] When a gas leak is detected;

[0054] When the gas monitoring camera detects a possible gas leakage signal, the artificial intelligence module first confirms whether a gas leakage has occurred and determines the possible cause of the leakage by analyzing the data of the gas monitoring camera. After confirming the leakage, the system immediately closes the relevant valves to prevent further leakage, stops the gas distribution system, and starts the exhaust fan to remove the leaked gas, triggering the buzzer alarm. At the same time, the diagnosis results and emergency processing information are uploaded to the cloud server, notifying the relevant operators to conduct further inspection and processing.

[0055] Embodiment three;

[0056] When the pressure is detected to be higher than the standard value;

[0057] When the pressure sensor detects that the pressure is higher than the standard value, artificial intelligence analyzes the current pressure data and compares it with the historical operating data to identify possible overpressure trends. When the risk of overpressure is detected, the pneumatic valve on the main circuit is closed and the pneumatic valve on branch one is opened at the same time, allowing the gas to enter the exhaust circuit through the one-way valve and be stored in the exhaust gas pool, thereby achieving the effect of relieving the pressure on the main circuit.

[0058] Embodiment 4:

[0059] When the pressure rise is not detected by the pressure sensor or the branch pneumatic valve is not started.

[0060] When the pressure in the main circuit increases but the pressure sensor and the pneumatic valve of branch one are not started, the pressure in the main circuit continues to rise, and the pressure reaches the opening pressure range of the safety valve, causing the safety valve to open, allowing the gas in the main circuit to enter branch two, and enter the waste discharge circuit through the one-way valve and be stored in the waste gas pool, achieving the effect of pressure relief when equipment failure occurs and pressure relief through branch one is impossible.

[0061] Embodiment five;

[0062] When the temperature of the filled bottle is detected to be rising.

[0063] When the infrared detector detects that the temperature of the filled bottle has risen, artificial intelligence analyzes the current temperature and compares the data with the historical operating data to identify whether it is overfilled or the filling speed is too fast. When overfilling occurs, the pneumatic valve on the main circuit is closed and the pneumatic valve on branch one is opened at the same time, allowing the gas to enter the waste gas circuit through the one-way valve and be stored in the waste gas pool, thereby achieving the effect of relieving the pressure on the main circuit.

[0064] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A standard gas intelligent preparation safety control system, characterized in that: include; The main circuit, which serves as the main body of gas mixing preparation; The control module is connected to the cloud server, receives and checks the operating status and sends control instructions through artificial intelligence diagnosis; A communication gateway, which is used for the main loop to send status information to the cloud server and receive control instructions; The upper control machine is connected to the communication gateway and is used to collect the main circuit operation status information and receive instructions to control the main circuit operation status; The upper control machine is connected to a gas monitoring unit, a pressure detection unit, a valve control unit and an alarm exhaust unit; The gas monitoring unit is used to monitor whether there is gas leakage in the main circuit; The pressure detection unit is used to detect the pressure change of the main circuit; The valve control unit is used to control all valves on the main circuit; The alarm exhaust unit is used to sound an alarm and exhaust air to alert relevant personnel.

2. A standard gas intelligent preparation safety control system according to claim 1, characterized in that: The gas monitoring unit includes a gas monitoring camera and an infrared detector. The gas monitoring camera is installed outside the main circuit, and its field of view covers the entire main circuit to monitor gas leakage. The infrared detector is installed outside the main circuit to measure the temperature change of the filled bottle during the filling process to assist in determining whether it is overfilled.

3. A standard gas intelligent preparation safety control system according to claim 1, characterized in that: The pressure detection unit includes a pressure sensor, and the pressure sensor is installed on the main circuit.

4. A standard gas intelligent preparation safety control system according to claim 1, characterized in that: The valve control unit comprises an electric valve and a pneumatic valve. The electric valve is installed in an explosion-proof electrical cabinet to control the pneumatic valve.

5. The standard gas intelligent preparation safety control system according to claim 1 is characterized in that: The main circuit is provided with multiple pneumatic valves for controlling gas entry, the main circuit is provided with branch one and branch two, branch one is provided with a pneumatic valve, branch two is provided with a safety valve, one end of branch one and branch two are both installed with a one-way valve, one end of the one-way valve is provided with a waste discharge circuit, and one end of the waste discharge circuit is provided with a waste gas pool.

6. A standard gas intelligent preparation safety control system according to claim 1, characterized in that: The alarm exhaust unit comprises: Buzzer alarm: The buzzer alarm is installed in the workshop where the main circuit is located, and it will sound an alarm in case of abnormal pressure and gas leakage; Exhaust fans: Multiple exhaust fans are installed in the workshop where the main circuit is located to quickly exhaust gas in case of gas leakage.

7. A standard gas intelligent preparation safety control system according to claim 1, characterized in that: The control module includes a mobile phone and a personal computer, which are connected to a cloud server to check the operating status of the entire system, receive system alarm information, and send control instructions to the system.

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