Intelligent detection system for leakage rate of low-load and high-frequency switching valve of exhaust gas treatment oxidation furnace

Abstract

The present application relates to the field of leakage detection technology, and discloses an intelligent detection system for leakage rate of a low-load high-frequency switching valve of an exhaust gas treatment oxidation furnace, including an automatic constant pressure valve 1, a pipeline and a control console. The automatic constant pressure valve 1 is installed at the inlet end of the pipeline, and is used to preliminarily adjust the pressure of the gas entering the system. A pipeline base is provided at the bottom of the pipeline, and a pressure-taking pipe is connected to the outlet end of the pipeline. A power distributor is provided at one end of the pressure-taking pipe, and a pressure transmitter 1 is provided at the output end of the power distributor. A gas source distributor is provided on one side of the pipeline, and a flange 1 is installed between the pipeline and the gas source distributor. Through precise components, the system can accurately adjust and monitor the pressure and flow of the gas, thereby achieving accurate measurement of the leakage rate. The system uses compressed air as the test medium, which is non-toxic and harmless. After use, it can be directly discharged into the atmosphere without generating any pollutants.

Description

Technical Field

[0001] The present invention relates to the technical field of leakage detection, and in particular to an intelligent leakage rate detection system for a low-load and high-frequency switching valve of an exhaust gas treatment oxidation furnace. Background Art

[0002] In modern industrial processes, the operating efficiency and safety of oxidation furnaces and related process control equipment greatly depend on the reliability of various valves within the system. Especially in the application of high-frequency switching valves, any small leakage may lead to energy efficiency loss, increase operating costs, and even cause safety accidents. Therefore, the technology that can accurately measure and evaluate the leakage rate of switching valves is very critical to ensure the stability and safety of equipment operation.

[0003] At present, valve leakage detection technology mainly relies on traditional pressure test methods, which involves placing the valve under a specific pressure environment and then collecting the leaked gas or liquid by physical methods to evaluate the sealing performance of the valve. This method is widely used in certain industrial applications because it provides a direct way to measure the leakage.

[0004] Despite their widespread use, these traditional methods face significant challenges under low-load conditions. Under low-load conditions, valve leakage is usually small and difficult to accurately capture and measure with traditional equipment. In addition, these traditional pressure testing equipment are often costly and complex to operate, requiring professional technicians to operate and maintain. As a result, existing technologies often fail to meet industry's demand for high efficiency and high safety standards in terms of accuracy, cost-effectiveness, and ease of operation. Summary of the invention

[0005] In view of the shortcomings of the prior art, the present invention provides an intelligent detection system for the leakage rate of a low-load and high-frequency switching valve of a waste gas treatment oxidation furnace, which solves the problem that the prior art often cannot meet the industry's demand for high efficiency and high safety standards in terms of accuracy, cost efficiency and ease of operation.

[0006] To achieve the above objectives, the present invention is implemented through the following technical solutions: an intelligent detection system for leakage rate of a low-load high-frequency switching valve of an exhaust gas treatment oxidation furnace, comprising an automatic constant pressure valve, a pipeline and a control console, wherein the automatic constant pressure valve is installed at the inlet end of the pipeline and is used to preliminarily adjust the gas pressure entering the system, a pipeline base is provided at the bottom of the pipeline, a pressure-taking pipe is connected to the outlet end of the pipeline, a power distributor is provided at one end of the pressure-taking pipe, a pressure transmitter is provided at the output end of the power distributor, an air source distributor is installed on one side of the pipeline, a flange is installed between the pipeline and the air source distributor, and the flange is used to ensure the air source distributor and the pressure transmitter. Connection, a double-plate air sealing valve is arranged on the upper surface of the gas source distributor, a diaphragm box pressure gauge is arranged at the output end of the gas source distributor, a PVC exhaust pipe 1 is connected to the output end of one side of the gas source distributor, a flange 2 is arranged between the PVC exhaust pipe 1 and the gas source distributor, which is used to strengthen the connection between the PVC exhaust pipe 1 and the gas source distributor, a double-flange extension pipe 1 is arranged at the output end of the PVC exhaust pipe 1, a vortex flowmeter bracket 1 is arranged on one side of the double-flange extension pipe, a vortex flowmeter is arranged on the top of the vortex flowmeter bracket 1, a double-flange extension pipe 2 is connected to one side of the vortex flowmeter bracket, and a pneumatic ball valve 1 is arranged at the second port of the double-flange extension pipe.

[0007] Preferably, a nitrogen sealing valve pressure taking pipe is connected to the output end on one side of the gas source distributor, a pneumatic ball valve 1 is connected to the right side of the gas source distributor, one end of the nitrogen sealing valve pressure taking pipe is connected to an automatic constant pressure valve 2, large and small joints 1 are connected to both sides of the automatic constant pressure valve 2, and the PVC air inlet pipe is connected to the automatic constant pressure valve 2 through the large and small joints 1.

[0008] Preferably, one side of the large and small joints is connected to a double flange extension tube three, a vortex flowmeter two is arranged above the double flange extension tube three, a vortex flowmeter bracket two is arranged at the bottom of the vortex flowmeter two, the output end of the vortex flowmeter two is connected to a double flange extension tube four, and the output end of the double flange extension tube four is connected to a pneumatic ball valve two.

[0009] Preferably, the output end of the pneumatic ball valve 2 is connected to a double flange extension tube 5, a pressure transmitter 2 is arranged above the double flange extension tube 5, the output end of the double flange extension tube 5 is connected to a pressure reducing valve, the right output end of the pressure reducing valve is connected to a PVC pipe, the output end of the PVC pipe is connected to a dynamic ball valve 3, and the PVC pipe is connected to a gas storage tank through the dynamic ball valve 3.

[0010] Preferably, a PVC exhaust pipe 2 is connected to the side of the pipeline, an automatic pressure-supplying valve 1 is connected to the output end of the PVC exhaust pipe 2, an automatic pressure-supplying valve 2 is connected to the top of the automatic pressure-supplying valve 1 and one end of the automatic pressure-supplying valve 2 is connected to a pressure transmitter 1, a large and small joint 2 is arranged on the right side of the automatic pressure-supplying valve 1, a double flange extension pipe 7 is connected to one side of the large and small joint 2, a vortex flowmeter 3 is connected to the right end of the double flange extension pipe 7, a vortex flowmeter bracket 3 is arranged on the surface of the vortex flowmeter 3, a double flange extension pipe 6 is arranged on one side of the vortex flowmeter 3, and a pneumatic ball valve 4 is arranged on the right side of the double flange extension pipe 6.

[0011] Preferably, one side of the double flange extension tube five is connected to a PU hose, one end of the PU hose is connected to a pneumatic ball valve five, one side of the pneumatic ball valve five is connected to an air pressure tube one, the top of the air pressure tube one is connected to a miniature metal tube float flowmeter, the output end of the miniature metal tube float flowmeter is connected to an air pressure tube two, the output end of the air pressure tube two is connected to a one-way valve, and the air pressure tube two is connected to an automatic constant pressure valve one through the one-way valve.

[0012] Preferably, the console is configured with an operation interface and a data processing module, and is connected to pressure transmitter one and pressure transmitter two, for receiving and processing signals transmitted from pressure transmitter one and pressure transmitter two, and is electrically connected to a printer for outputting data reports.

[0013] Preferably, the printer is mounted on a printer support, located next to the control console, for facilitating an operator to obtain printouts.

[0014] Working principle: The operation process starts with the initialization of the console and the system self-check to ensure that all electrical and mechanical components are in the best working condition. The operator enters the specific parameters of the required test, including pressure and flow, through the user interface of the console, and the system accurately adjusts the gas pressure entering the test pipeline through the automatic constant pressure valve. Subsequently, the gas source distributor and pneumatic ball valve control the gas distribution route in the system according to the preset program to simulate different pressure and flow conditions in the actual working environment.

[0015] The vortex flowmeter and pressure transmitter monitor and record the flow and pressure data of the gas in real time, which are transmitted to the data processing module of the console. This module analyzes the data, calculates the leakage rate, and displays the results in real time on the console interface for the operator to monitor and evaluate. After the test is completed, the system can automatically or manually output detailed data reports, which the operator can print out on the connected printer for record and further analysis. After the entire test process is completed, the system automatically shuts down and performs necessary cleanup work, ensuring simple and low-cost equipment maintenance. In addition, since compressed air is used as the test medium, the system is not only safe and harmless to operate, but also ensures environmental protection without worrying about pollution.

[0016] The present invention provides an intelligent detection system for leakage rate of low-load high-frequency switching valves of waste gas treatment oxidation furnaces. It has the following beneficial effects: 1. Through these precise components, the system can accurately adjust and monitor the pressure and flow of the gas, thereby achieving accurate measurement of the leakage rate. The system uses compressed air as the test medium, which is non-toxic and harmless and can be directly discharged into the atmosphere after use without generating any pollutants.

[0017] 2. The present invention uses an intelligent data processing module, and the system can automatically calculate and display the leakage rate, and generate a detailed test report. In addition, the independent design of the system makes the operation and maintenance of each part easier, greatly reducing the operation and maintenance costs. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 A perspective view of the present invention; Figure 2 for Figure 1 Enlarged view of point A in the middle;

[0019] Figure 3 for Figure 1 Enlarged view of point B in the middle.

[0020] Among them, 1. Automatic constant pressure valve 1; 2. Pipeline; 3. Pressure taking pipe; 4. Power distributor; 5. Pressure transmitter 1; 6. Flange 1; 7. Gas source distributor; 8. Diaphragm pressure gauge; 9. Double plate gas sealing valve; 10. Flange 2; 11. PVC exhaust pipe 1; 12. Double flange extension pipe 1; 13. Vortex flowmeter 1; 14. Vortex flowmeter bracket 1; 15. Double flange extension pipe 2; 16. Pneumatic ball valve 1; 17. Nitrogen sealing valve pressure taking pipe; 18. PVC air inlet pipe; 19. Automatic constant pressure valve 2; 20. Large and small joints 1; 21. Double flange extension pipe 3; 22. Vortex flowmeter 2; 23. Vortex flowmeter bracket 2; 24. Double Flange extension pipe four; 25, pneumatic ball valve two; 26, pressure transmitter two; 27, double flange extension pipe five; 28, pressure reducing valve; 29, PVC pipe; 30, dynamic ball valve three; 31, gas storage tank; 32, PU hose; 33, pneumatic ball valve four; 34, double flange extension pipe six; 35, vortex flowmeter three; 36, vortex flowmeter bracket three; 37, double flange extension pipe seven; 38, large and small joints two; 39, automatic pressure holding valve one; 40, automatic pressure holding valve two; 41, PVC exhaust pipe two; 42, pipe base; 43, pneumatic ball valve five; 44, air pressure pipe one; 45, micro metal tube float flowmeter; 46, air pressure pipe two;

[0021] 47. One-way valve; 48. Control console; 49. Printer; 50. Printer stand. DETAILED DESCRIPTION

[0022] The following will be combined with the drawings in the embodiments 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.

[0023] For examples, please see the attached Figure 1 -Attached Figure 3 The embodiment of the present invention provides an intelligent detection system for leakage rate of a low-load high-frequency switching valve of an exhaust gas treatment oxidation furnace, including an automatic constant pressure valve 1, a pipeline 2 and a control console 48. The automatic constant pressure valve 1 is installed at the inlet end of the pipeline 2 for preliminarily adjusting the gas pressure entering the system. A pipeline base 42 is provided at the bottom of the pipeline 2. A pressure-taking pipe 3 is connected to the outlet end of the pipeline 2. A power distributor 4 is provided at one end of the pressure-taking pipe 3. A pressure transmitter 5 is provided at the output end of the power distributor 4. A gas source distributor 7 is installed on one side of the pipeline 2. A flange 6 is installed between the pipeline 2 and the gas source distributor 7. The flange 6 is used to ensure the connection between the gas source distributor 7 and the pressure transmitter 5. The upper surface of the gas source distributor 7 is provided with a pressure transmitter 5. A double-plate gas sealing valve 9 is provided, a diaphragm pressure gauge 8 is provided at the output end of the gas source distributor 7, a PVC exhaust pipe 11 is connected to the output end on one side of the gas source distributor 7, a flange 2 10 is provided between the PVC exhaust pipe 11 and the gas source distributor 7, which is used to strengthen the connection between the PVC exhaust pipe 11 and the gas source distributor 7, a double-flange extension pipe 12 is provided at the output end of the PVC exhaust pipe 11, a vortex flowmeter bracket 14 is provided on one side of the double-flange extension pipe 12, a vortex flowmeter 13 is provided on the top of the vortex flowmeter bracket 14, a double-flange extension pipe 2 15 is connected to one side of the vortex flowmeter bracket 14, and a pneumatic ball valve 16 is provided at the port of the double-flange extension pipe 2 15.

[0024] The output end on one side of the gas source distributor 7 is connected to a nitrogen sealing valve pressure taking pipe 17, the right side of the gas source distributor 7 is connected to a pneumatic ball valve 16, one end of the nitrogen sealing valve pressure taking pipe 17 is connected to an automatic constant pressure valve 19, and both sides of the automatic constant pressure valve 19 are connected to large and small joints 20, and the PVC air inlet pipe 18 is connected to the automatic constant pressure valve 19 through the large and small joints 20.

[0025] A double flange extension pipe three 21 is connected to one side of the large and small joints 20, a vortex flowmeter two 22 is arranged above the double flange extension pipe three 21, a vortex flowmeter bracket two 23 is arranged at the bottom of the vortex flowmeter two 22, the output end of the vortex flowmeter two 22 is connected to a double flange extension pipe four 24, and the output end of the double flange extension pipe four 24 is connected to a pneumatic ball valve two 25.

[0026] The output end of the pneumatic ball valve 25 is connected to a double flange extension pipe 5 27, a pressure transmitter 26 is arranged above the double flange extension pipe 5 27, the output end of the double flange extension pipe 5 27 is connected to a pressure reducing valve 28, the right output end of the pressure reducing valve 28 is connected to a PVC pipe 29, the output end of the PVC pipe 29 is connected to a dynamic ball valve 30, and the PVC pipe 29 is connected to a gas storage tank 31 through the dynamic ball valve 30.

[0027] A PVC exhaust pipe 2 41 is connected to the side of the pipeline 2, an automatic pressure-supplying valve 1 39 is connected to the output end of the PVC exhaust pipe 2 41, an automatic pressure-supplying valve 2 40 is connected to the top of the automatic pressure-supplying valve 1 39, and one end of the automatic pressure-supplying valve 2 40 is connected to a pressure transmitter 1 5, a large and small joint 2 38 is arranged on the right side of the automatic pressure-supplying valve 1 39, a double flange extension pipe 7 37 is connected to one side of the large and small joint 2 38, a vortex flowmeter 3 35 is connected to the right end of the double flange extension pipe 7 37, a vortex flowmeter 3 35 is arranged on the surface of the vortex flowmeter 3 35, a double flange extension pipe 6 34 is arranged on one side of the vortex flowmeter 3 35, and a pneumatic ball valve 4 33 is arranged on the right side of the double flange extension pipe 6 34.

[0028] A PU hose 32 is connected to one side of the double flange extension tube 5 27, one end of the PU hose 32 is connected to a pneumatic ball valve 5 43, one side of the pneumatic ball valve 5 43 is connected to an air pressure tube 1 44, the top of the air pressure tube 1 44 is connected to a miniature metal tube float flowmeter 45, the output end of the miniature metal tube float flowmeter 45 is connected to an air pressure tube 2 46, the output end of the air pressure tube 2 46 is connected to a one-way valve 47, and the air pressure tube 2 46 is connected to the automatic constant pressure valve 1 through the one-way valve 47.

[0029] The console 48 is configured with an operation interface and a data processing module, and is connected to the pressure transmitter 1 5 and the pressure transmitter 2 26 for receiving and processing the signals transmitted by the pressure transmitter 1 5 and the pressure transmitter 2 26, and is electrically connected to a printer 49 for outputting data reports.

[0030] The printer 49 is mounted on a printer support 50 and is located next to the console 48 to facilitate the operator to obtain printouts.

[0031] Automatic constant pressure valve 1 and automatic constant pressure valve 2 19 are installed at the inlet end and key flow control point of the system respectively. They play a vital role by accurately adjusting and stabilizing the gas pressure entering the system to meet specific test standards. This function is not only key to maintaining the pressure balance of the entire detection system, but also ensures the accuracy and reliability of leak detection.

[0032] The automatic constant pressure valve is located at the inlet of the system and is the first to come into contact with the source gas. It is responsible for the initial adjustment of the original pressure, reducing the high or unstable pressure to a level that the system can safely handle. This step is the first guarantee for the operation of the system, ensuring that subsequent components will not be damaged due to excessive pressure, and providing a stable starting point for accurate leakage measurement.

[0033] The automatic constant pressure valve 219 is installed at the key flow control point of the system, usually in the middle section of the system or in the key position before which precise control is required. The role of this valve is to further refine the pressure adjustment to ensure that the gas flow in the system remains constant even in the case of long-term operation or environmental changes. Its adjustment ability is particularly important for simulating different operating conditions, such as simulating the working environment under different loads, which enables the system to not only detect the leakage rate under standard conditions, but also evaluate the performance of the valve under fluctuating or extreme working conditions.

[0034] Through the precise control of the two automatic constant pressure valves, the system is able to simulate a variety of working conditions from light load to heavy load, which is essential for testing and evaluating the durability and reliability of valves in actual working environments. The ability to reproduce these environments under controlled conditions provides a deep understanding of the actual performance of the valves, making the test results more predictive and practical. This capability is particularly suitable for industrial applications where working conditions vary greatly or where frequent switching of working modes is required, ensuring that the data obtained through this system can accurately reflect the actual performance of the valves in changing environments.

[0035] The main pipeline 2 is the center of the entire detection system, responsible for transporting the regulated gas from the inlet to each detection point of the system. This pipeline not only has to withstand the pressure changes from within the system, but also has to cope with the physical impact that may be brought by the external environment. To this end, the bottom of the main pipeline is equipped with a structurally reinforced pipeline base 42, which not only increases the stability of the pipeline itself, but also protects the pipeline from ground vibration and other potential mechanical damage, thereby extending the service life of the system and reducing maintenance costs.

[0036] The pressure pipe is located at the outlet of the main pipeline. Its main function is to separate a small amount of gas from the main fluid for pressure and flow measurement. This design ensures the accuracy of the measurement, because the pressure pipe can accurately monitor the pressure status of the system without affecting the flow of the main pipeline. The equipped power distributor 4 provides a stable and reliable power supply for the pressure transmitter 5, ensuring that the pressure transmitter can continuously monitor the system pressure and record data, which is crucial for the accuracy of leak detection and the timeliness of system response.

[0037] The pressure transmitter installed on the pressure pipe is a key device for monitoring and recording system pressure changes. It can not only reflect the pressure status in the system in real time, but also send pressure data to the control console in real time through a preset communication protocol. This continuous data stream is the basis for evaluating the overall performance of the system, detecting potential problems, and making necessary adjustments.

[0038] The gas distributor is a key component installed on the side of the main pipeline, and is firmly connected to the rest of the system through a precision flange. This connection not only ensures high sealing between components, but also facilitates system maintenance and possible configuration adjustments. The main function of the gas distributor is to control and regulate the gas flowing through the system to ensure that it is accurately distributed to each measurement point according to the set test parameters.

[0039] The top of the gas source distributor is equipped with an advanced double-plate gas seal valve 9 and a diaphragm pressure gauge 8. The double-plate gas seal valve allows the system to quickly switch the gas flow path while maintaining stable gas flow and pressure, which is essential for simulating different working conditions and quickly responding to system changes. The diaphragm pressure gauge provides real-time and accurate pressure readings, which are essential for monitoring system status and ensuring pressure stability during testing, thereby ensuring the reliability and accuracy of experimental data.

[0040] PVC exhaust pipe 11 and double flange extension pipe 12 are important parts of the system for handling and directing gas exhaust. These pipes are fastened by flange 10, which not only enhances the structural integrity of the system, but also improves the sealing performance to prevent any potential gas leakage, thereby ensuring the safety of the test environment and the correctness of the gas flow. This structural arrangement is of great significance for maintaining the high performance operation of the entire system and preventing environmental pollution.

[0041] Through these carefully designed configurations, the gas source distributor and its related monitoring equipment not only ensure precise control of gas flow and pressure, but also provide the system with the necessary flexibility and responsiveness, so that the entire detection system can operate stably under various operating conditions, accurately measure and evaluate the leakage rate of the oxidation furnace switching valve, optimize equipment performance and ensure environmental safety.

[0042] The vortex flowmeter 13 is a high-precision flow measurement device that is particularly suitable for measuring the frequency of vortex generation, which is proportional to the gas velocity flowing through the flowmeter. It is mounted on a bracket 14 and connected to the rest of the system through a double flange extension pipe 215 to ensure its stability and reliability. The design of this flowmeter allows it to operate over an extremely wide range of flow rates while maintaining a high degree of measurement accuracy and repeatability, which is essential for monitoring and analyzing gas flow within the system.

[0043] The pneumatic ball valves from pneumatic ball valve 16 to pneumatic ball valve 543 that work with the vortex flowmeter are responsible for accurately controlling the flow direction and speed of the gas in the system. These ball valves can quickly respond to control signals and adjust the gas flow to ensure that the gas flow state under various working conditions can be simulated. Each ball valve can be operated independently, allowing the system to conduct experiments with different configurations on multiple channels simultaneously when performing leak rate tests, greatly enhancing the adaptability and versatility of the system.

[0044] The console is equipped with an intuitive and easy-to-use operator interface that allows the operator to easily set experimental parameters, start and stop tests, and monitor real-time data. The interface is designed with user experience in mind, and all functions are easily accessed through the touch screen or physical buttons to ensure ease and intuitive operation. The built-in data processing module has high-speed processing capabilities and can receive data in real time from connected sensors, such as pressure transmitters 15 and 26. These sensors provide accurate readings of pressure and flow inside the system, which is the basis for monitoring leak rates and other key system parameters.

[0045] The console, through its data processing module, not only processes incoming data quickly, but also calculates and displays key performance indicators such as leakage rate in real time. This enables operators to obtain critical feedback immediately and make adjustments based on system performance to optimize system performance. In addition, the console can also display historical data and trend analysis to assist operators in better understanding system behavior under long-term operating conditions.

[0046] The printer 49 next to the console, mounted on a specially designed printer stand 50, provides the operator with a convenient way to output test data. This instant printout function allows the operator to quickly obtain a hard copy of the data report for more in-depth analysis or archival records. Whether performing daily inspections or meeting compliance and audit requirements, printout is an indispensable function that increases data accessibility and system practicality.

[0047] The pressure chamber detection device is an automatic intelligent pressure bag with an adjustable set pressure value. After the pressure value is set, the pressure in the pressure chamber is always maintained within the range of +-5% of the set value. Excess pressure is exhausted through the automatic pressure holding valve, and under-pressure is supplemented through the automatic constant pressure valve.

[0048] The detection system collects the flow meter data before the DN15 automatic constant pressure valve at the inlet of the detection pressure chamber device to obtain the leakage amount of the pipeline medium.

[0049] The detection system collects the flow meter data at the front end of the DN80 automatic constant pressure valve at the inlet of the air sealing valve pilot air valve, the flow meter data at the rear end of the DN80 automatic pressure-holding valve of the detection pressure chamber device, and the flow meter data at the downstream discharge port of the detected valve, and calculates the required flow leakage and leakage rate of the pilot air by comparison. The pressure of the pressure chamber is collected through a pressure transmitter.

[0050] 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. An intelligent detection system for leakage rate of a low-load high-frequency switching valve of an exhaust gas treatment oxidation furnace, comprising an automatic constant pressure valve (1), a pipeline (2), a PVC air inlet pipe (18) and a control console (48), characterized in that: The automatic constant pressure valve (1) is installed at the inlet end of the pipeline (2) and is used to preliminarily adjust the pressure of the gas entering the system. The bottom of the pipeline (2) is provided with a pipeline base (42). The outlet of the pipeline (2) is connected to a pressure-taking pipe (3). One end of the pressure-taking pipe (3) is provided with a power distributor (4). The output end of the power distributor (4) is provided with a pressure transmitter (5). One side of the pipeline (2) is provided with a gas source distributor (7). A flange (6) is installed between the pipeline (2) and the gas source distributor (7). The flange (6) is used to ensure the connection between the gas source distributor (7) and the pressure transmitter (5). The upper surface of the gas source distributor (7) is provided with a double-plate gas sealing valve (9). The output end of the gas source distributor (7) is provided with A diaphragm pressure gauge (8), wherein the output end of one side of the gas source distributor (7) is connected to a PVC exhaust pipe (11), a flange (10) is provided between the PVC exhaust pipe (11) and the gas source distributor (7) for reinforcing the connection between the PVC exhaust pipe (11) and the gas source distributor (7), a double flange extension pipe (12) is provided at the output end of the PVC exhaust pipe (11), a vortex flowmeter bracket (14) is provided on one side of the double flange extension pipe (12), a vortex flowmeter (13) is provided on the top of the vortex flowmeter bracket (14), a double flange extension pipe (15) is connected to one side of the vortex flowmeter bracket (14), and a pneumatic ball valve (16) is provided at the port of the double flange extension pipe (15).

2. The intelligent detection system for leakage rate of low-load and high-frequency switching valve of exhaust gas treatment oxidation furnace according to claim 1 is characterized in that: The output end of one side of the gas source distributor (7) is connected to a nitrogen sealing valve pressure taking pipe (17), the right side of the gas source distributor (7) is connected to a pneumatic ball valve (16), one end of the nitrogen sealing valve pressure taking pipe (17) is connected to an automatic constant pressure valve (19), both sides of the automatic constant pressure valve (19) are connected to large and small joints (20), and the PVC air inlet pipe (18) is connected to the automatic constant pressure valve (19) via the large and small joints (20).

3. The intelligent detection system for leakage rate of low-load and high-frequency switching valve of exhaust gas treatment oxidation furnace according to claim 2 is characterized in that: One side of the large and small joints (20) is connected to a double flange extension pipe (21), a vortex flowmeter (22) is arranged above the double flange extension pipe (21), a vortex flowmeter bracket (23) is arranged at the bottom of the vortex flowmeter (22), the output end of the vortex flowmeter (22) is connected to a double flange extension pipe (24), and the output end of the double flange extension pipe (24) is connected to a pneumatic ball valve (25).

4. The intelligent detection system for leakage rate of low-load and high-frequency switching valve of exhaust gas treatment oxidation furnace according to claim 3 is characterized in that: The output end of the pneumatic ball valve No. 2 (25) is connected to a double flange extension pipe No. 5 (27), a pressure transmitter No. 2 (26) is arranged above the double flange extension pipe No. 5 (27), the output end of the double flange extension pipe No. 5 (27) is connected to a pressure reducing valve (28), the right output end of the pressure reducing valve (28) is connected to a PVC pipe (29), the output end of the PVC pipe (29) is connected to a dynamic ball valve No. 3 (30), and the PVC pipe (29) is connected to a gas storage tank (31) via the dynamic ball valve No. 3 (30).

5. The intelligent detection system for leakage rate of low-load and high-frequency switching valve of exhaust gas treatment oxidation furnace according to claim 1 is characterized in that: The side of the pipeline (2) is connected to a PVC exhaust pipe 2 (41), the output end of the PVC exhaust pipe 2 (41) is connected to an automatic pressure-maintaining valve 1 (39), the top of the automatic pressure-maintaining valve 1 (39) is connected to an automatic pressure-maintaining valve 2 (40), and one end of the automatic pressure-maintaining valve 2 (40) is connected to a pressure transmitter 1 (5), a large and small joint 2 (38) is arranged on the right side of the automatic pressure-maintaining valve 1 (39), a double flange extension pipe 7 (37) is connected to one side of the large and small joint 2 (38), a vortex flowmeter 3 (35) is connected to the right end of the double flange extension pipe 7 (37), a vortex flowmeter 3 (35) is arranged on the surface of the vortex flowmeter 3 (35) with a vortex flowmeter bracket 3 (36), a double flange extension pipe 6 (34) is arranged on one side of the vortex flowmeter 3 (35), and a pneumatic ball valve 4 (33) is arranged on the right side of the double flange extension pipe 6 (34).

6. The intelligent detection system for leakage rate of low-load and high-frequency switching valve of exhaust gas treatment oxidation furnace according to claim 4 is characterized in that: One side of the double flange extension tube five (27) is connected to a PU hose (32), one end of the PU hose (32) is connected to a pneumatic ball valve five (43), one side of the pneumatic ball valve five (43) is connected to an air pressure tube one (44), the top end of the air pressure tube one (44) is connected to a miniature metal tube float flowmeter (45), the output end of the miniature metal tube float flowmeter (45) is connected to an air pressure tube two (46), the output end of the air pressure tube two (46) is connected to a one-way valve (47), and the air pressure tube two (46) is connected to an automatic constant pressure valve one (1) via the one-way valve (47).

7. The intelligent detection system for leakage rate of low-load and high-frequency switching valve of exhaust gas treatment oxidation furnace according to claim 1 is characterized in that: The console (48) is provided with an operation interface and a data processing module, and is connected to the pressure transmitter 1 (5) and the pressure transmitter 2 (26) for receiving and processing signals transmitted by the pressure transmitter 1 (5) and the pressure transmitter 2 (26), and is electrically connected to a printer (49) for outputting data reports.

8. The intelligent detection system for leakage rate of low-load and high-frequency switching valve of exhaust gas treatment oxidation furnace according to claim 7 is characterized in that: The printer (49) is mounted on a printer support (50) and is located next to the control console (48) to facilitate an operator to obtain a printout.

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