Hydrogen-doped mixed gas detection device based on ultrasonic relaxation

Abstract

The invention discloses a hydrogen-doped mixed gas detection device based on ultrasonic relaxation, the hydrogen-doped mixed gas detection device comprises a detector, the top of the detector is fixedly connected with a gas inlet assembly, the gas inlet assembly is internally provided with a filter assembly, the filter assembly comprises a filter column, the two sides of the interior of the filter column are fixedly connected with filter plates, and the filter plates are arranged in the filter column. An adsorption column is fixedly connected to the center of the interior of the filter column, a positioning groove is formed in the top of the outer wall of the filter column, a plurality of limiting holes are formed in the two sides of the outer wall of the filter column, and a handle is fixedly connected to the side wall of the filter column. Mixed gas firstly passes through the filter plate to intercept large-particle dust, then passes through the adsorption column to adsorb water vapor, and then enters the detector through the connecting seat, and the detection equipment detects the gas, so that the effects of protecting the sensor and reducing the influence of environmental factors on the detection result are achieved, the problem that the detection precision is influenced by impurities and water vapor is solved, and the detection efficiency is improved. The accuracy of a detection result and the service life of equipment are improved.

Description

Technical Field

[0001] The present invention belongs to the technical field of gas detection, and in particular relates to a detection device for hydrogen-doped mixed gas based on ultrasonic relaxation. Background Art

[0002] As the hydrogen energy industry flourishes, hydrogen-doped mixed gas detection devices play a vital role in industrial production, energy storage and transportation, and other fields. With the widespread application of hydrogen in industries such as chemical and new energy, accurately detecting the hydrogen concentration in mixed gases and promptly identifying potential leaks have become critical links in ensuring production safety and improving process stability. Consequently, the demand for high-performance hydrogen-doped mixed gas detection devices is becoming increasingly urgent.

[0003] Existing hydrogen-doped mixed gas detection devices mostly use a single gas collection channel, and then use sensors based on catalytic combustion, electrochemistry, and other principles to measure concentration. In terms of mechanical structure, the sensor protection module and gas processing components are relatively independent.

[0004] However, the existing devices have obvious shortcomings. On the one hand, the single gas processing structure cannot effectively isolate impurities such as dust and water vapor in the mixed gas, causing impurities to enter the sensor area, which not only affects the detection accuracy, but also accelerates sensor aging and reduces the service life of the equipment; on the other hand, the complicated replacement process of the filter components makes equipment maintenance time-consuming and labor-intensive, seriously affecting the continuity and efficiency of the detection work, and cannot meet the needs of rapid operation and maintenance of equipment in industrial scenarios. Therefore, a detection device for hydrogen-doped mixed gas is proposed to solve the above problems. Summary of the Invention

[0005] Purpose of the invention: In order to overcome the deficiencies in the prior art, a detection device for hydrogen-doped mixed gas based on ultrasonic relaxation is provided, aiming to improve the problem in the prior art that impurities and water vapor affect the detection accuracy.

[0006] Technical solution: To achieve the above-mentioned purpose, the present invention provides a detection device for hydrogen-doped mixed gas based on ultrasonic relaxation, comprising a detector, an air intake assembly fixedly connected to the top of the detector, and a filter assembly disposed inside the air intake assembly;

[0007] The filter assembly includes a filter column, the outer wall of the filter column is slidably connected to the inside of the air intake assembly, filter plates are fixedly connected on both sides of the inside of the filter column, the filter plates are used to intercept large particles of dust in the mixed gas, an adsorption column is fixedly connected at the center position of the inside of the filter column, the adsorption column is used to adsorb water vapor in the mixed gas, a positioning groove is provided on the top of the outer wall of the filter column, a plurality of limiting holes are provided on both sides of the outer wall of the filter column, the limiting holes are distributed in an array, a handle is fixedly connected to the side wall of the filter column, and the handle is used to assist personnel in removing the filter column from the air intake assembly.

[0008] As a further description of the above technical solution:

[0009] A display screen is fixedly connected to the side wall of the detector, and the display screen is used to display equipment parameters and detection results.

[0010] As a further description of the above technical solution:

[0011] A plurality of operation buttons are arranged below the display screen, and the bottoms of the plurality of operation buttons are fixedly connected to the side wall of the detector, and the operation buttons are distributed in an array.

[0012] As a further description of the above technical solution:

[0013] The bottom of the detector is provided with a plurality of exhaust holes, which are distributed in an array. The operation button is used to discharge the gas detected in the device.

[0014] As a further description of the above technical solution:

[0015] The air intake assembly includes a connecting seat, and a side wall of the connecting seat is fixedly connected to the top of the detector.

[0016] As a further description of the above technical solution:

[0017] A fixing seat is fixedly connected to the other side wall of the connecting seat, and a positioning block is fixedly connected to the upper inner wall of the fixing seat. The cross section of the positioning block is consistent with the shape of the positioning groove.

[0018] As a further description of the above technical solution:

[0019] Limiting balls are arranged on both sides of the left and right sides of the fixing seat. The limiting balls are distributed in an array. The side walls of the limiting balls are fixedly connected to the limiting plates. The limiting plates and the outer walls of the limiting balls are both slidably connected to the inside of the fixing seat.

[0020] As a further description of the above technical solution:

[0021] A limiting spring is provided on the side of the limiting plate, one end of the limiting spring is fixedly connected to the inside of the fixing seat, and the other end of the limiting spring is fixedly connected to the side wall of the limiting plate.

[0022] Beneficial effects: Compared with the prior art, the present invention has the following advantages:

[0023] 1. The negative pressure device inside the equipment generates negative pressure to suck the mixed gas into the fixed seat. The mixed gas first passes through the filter plate to intercept large particles of dust, and then passes through the adsorption column to adsorb water vapor. After that, it enters the detector through the connecting seat. The detection equipment detects the gas, thereby protecting the sensor and reducing the impact of environmental factors on the test results. It solves the problem of impurities and water vapor affecting the detection accuracy, and improves the accuracy of the test results and the service life of the equipment.

[0024] 2. The staff pulls the fixing seat outward by the handle to separate it from the filter column, aligns the positioning groove on the top of the new fixing seat with the positioning block inside the filter column and inserts it. The outer wall of the fixing seat squeezes the internal limiting ball of the filter column to drive the limiting plate to slide and compress the limiting spring. After inserting to the bottom, the limiting spring pushes the limiting ball back and snaps into the limiting hole of the fixing seat to complete the replacement. This achieves the effect of quickly replacing the filter column, solves the problem of cumbersome filter column replacement, and improves equipment maintenance efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0025] Figure 1 is a perspective view of the detection device;

[0026] Figure 2 It is a structural diagram of the connecting seat;

[0027] Figure 3 This is the structural explosion diagram of the fixed seat;

[0028] Figure 4 Schematic diagram of the structure of the filter column;

[0029] Figure 5 It is a structural diagram of the limiting ball.

[0030] Legend:

[0031] 1. Detector; 2. Display screen; 3. Operation button; 4. Exhaust hole; 5. Connecting seat; 6. Fixing seat; 7. Filter column; 8. Handle; 9. Positioning slot; 10. Limiting hole; 11. Positioning block; 12. Filter plate; 13. Adsorption column; 14. Limiting spring; 15. Limiting plate; 16. Limiting ball. DETAILED DESCRIPTION

[0032] The present invention is further illustrated below with reference to the accompanying drawings and specific embodiments. It should be understood that these embodiments are only used to illustrate the present invention and are not used to limit the scope of the present invention. After reading the present invention, modifications of various equivalent forms of the present invention made by those skilled in the art all fall within the scope defined by the claims attached to this application.

[0033] Reference Figure 1-Figure 5An embodiment of the present invention provides: a detection device for a hydrogen-doped mixed gas, including a detector 1, which is used to accommodate internal detection equipment, a circuit system, a display screen 2 and other components. The detector 1 is a prior art and will not be described in detail herein. The top of the detector 1 is fixedly connected to an intake assembly by bolts. The intake assembly is responsible for the introduction and pretreatment of the mixed gas. The intake assembly has an integrated filter assembly for purifying the gas to ensure that the gas entering the detector 1 meets the detection requirements.

[0034] The core component of the filter assembly is the filter column 7. The filter column 7 is injection-molded with engineering plastics and has high strength and chemical corrosion resistance. The outer wall is designed with a sliding structure that is compatible with the air intake assembly, which can be quickly disassembled and assembled. The two sides of the filter column 7 are fixedly connected to the filter plate 12 by ultrasonic welding. The filter plate 12 is made of 304 stainless steel wire mesh with a mesh diameter of 0.1mm, which can effectively intercept large particles of dust with a particle size greater than 0.1mm in the mixed gas, preventing dust from entering the detector 1 and damaging the detection equipment. The center position of the filter column 7 is fixedly connected to the adsorption column 13 by a hot pressing process. The adsorption column 13 is pressed by activated alumina particles, has a high specific surface area and strong water absorption, and can effectively adsorb water vapor in the mixed gas to avoid water vapor from interfering with the detection results. The top of the outer wall of the filter column 7 is opened with a positioning groove 9 by milling. The cross section of the positioning groove 9 is trapezoidal, which is used to cooperate with the positioning block 11 in the air intake assembly to achieve precise positioning. A plurality of holes are opened on both sides of the outer wall of the filter column 7 by drilling. The limiting holes 10 are distributed in an array, and the limiting holes 10 are used to cooperate with the limiting balls 16 to fix the filter column 7. The side wall of the filter column 7 is integrally formed with a handle 8 by injection molding. The material of the handle 8 is the same as that of the filter column 7, which is convenient for the operator to remove the filter column 7 from the air intake assembly for replacement and maintenance. The side wall of the detector 1 is fixed to the display screen 2 by screws. The display screen 2 is used to display the working parameters of the equipment and the detection results such as the hydrogen concentration in the mixed gas in real time. The display screen 2 is a prior art and will not be described in detail in this article. A plurality of operation buttons 3 are installed below the display screen 2 by surface mounting technology. The operation buttons 3 are made of silicone material and are fixed to the side wall of the detector 1 by circuit board welding at the bottom, and are distributed in an array of two rows and three columns. It is used to control the start, stop, parameter setting and detection mode switching of the equipment. The operation buttons 3 are prior art and will not be described in detail in this article. A plurality of exhaust holes 4 distributed in an array are opened at the bottom of the detector 1 by a stamping process. The exhaust holes 4 are used to discharge the gas after the detection in the equipment;

[0035] The air intake assembly consists of a connecting seat 5 and a fixing seat 6. The side wall of the connecting seat 5 is fixed to the top of the detector 1 by bolts, and the other side wall is fixedly connected to the fixing seat 6 by welding. The upper part of the fixing seat 6 is fixedly connected to the positioning block 11 by welding. The cross-sectional shape of the positioning block 11 is consistent with the positioning groove 9 of the filter column 7, which is used to achieve accurate positioning of the filter column 7 during installation. A plurality of limiting balls 16 distributed in an array are provided on the left and right sides of the fixing seat 6. The limiting balls 16 are used to fit into the limiting holes 10 of the filter column 7 for fixation. The side wall of each limiting ball 16 is fixedly connected to the limiting plate 15 by welding. The outer wall of the limiting plate 15 forms a sliding fit with the guide groove inside the fixing seat 6 to limit the displacement range of the limiting ball 16. A limiting spring 14 is provided on the side of the limiting plate 15. The limiting spring 14 is wound with 304 stainless steel wire and has a stable elastic coefficient after heat treatment. One end is welded to the spring seat preset inside the fixing seat 6, and the other end is welded to the side wall of the limiting plate 15 to provide a reset elastic force for the limiting ball 16 to achieve rapid fixation of the filter column 7;

[0036] Specifically, when using the hydrogen-doped mixed gas detection device, the staff stands next to the device and presses the start button in the operation button 3 on the side wall of the detector 1 with his finger. The operation button 3 transmits an electrical signal to the control system inside the device. After receiving the signal, the control system starts the internal negative pressure device. After the negative pressure device is powered on, the internal impeller rotates at high speed to form a negative pressure environment inside the fixed seat 6. Under the action of negative pressure, the external mixed gas enters the device through the fixed seat 6 of the air intake component. The mixed gas first flows through the filter plates 12 on both sides of the filter column 7. Due to inertia and the interception effect of the filter screen, large particles of dust are blocked outside by the filter plates 12 and cannot pass through the filter screen. Subsequently, the mixed gas that has been preliminarily filtered continues to flow toward the center of the filter column 7 and enters the adsorption column 13 area. The water vapor molecules in the mixed gas undergo physical adsorption with the activated alumina on the surface of the adsorption column 13 and are adsorbed on the surface of the adsorption column 13, thereby achieving the removal of water vapor. The mixed gas after filtration and adsorption treatment enters the interior of the detector 1 through the connecting seat 5. The hydrogen sensor inside the detector 1 detects parameters such as the hydrogen concentration in the mixed gas. After the detection data is processed by the circuit system, it is transmitted to the display screen 2 for real-time display. The gas after detection is discharged out of the device through the exhaust hole 4 at the bottom of the detector 1 under the continuous action of the negative pressure equipment. The whole process effectively protects the detection sensor inside the detector 1 and reduces the influence of environmental factors such as dust and water vapor on the detection results.

[0037] When the filter column 7 needs to be replaced, the staff member holds the handle 8 on the side wall of the filter column 7 with his hand, uses the fixed seat 6 as a support point, and pulls it outward in the horizontal direction. During the pulling process, the limiting ball 16 inside the fixed seat 6 is resisted by the outer wall of the filter column 7, and the limiting ball 16 drives the limiting plate 15 to compress the limiting spring 14. The limiting spring 14 stores elastic potential energy. When the filter column 7 is completely pulled out of the fixed seat 6, the old filter column 7 can be removed. The staff member selects a new filter column 7, aligns the positioning groove 9 on its top with the positioning block 11 inside the fixed seat 6, and inserts the filter column 7 into the fixed seat 6 in the horizontal direction. During the insertion process, the outer wall of the filter column 7 squeezes the limiting balls 16 on both sides of the fixed seat 6. The limiting balls 16 use the contact point between the limiting plate 15 and the inner wall of the fixed seat 6 as a fulcrum and move radially toward the inside of the fixed seat 6. The displacement of the limiting ball 16 drives the limiting plate 15 to slide synchronously toward the inside of the fixed seat 6, further compressing the limiting spring 14 When the filter column 7 is inserted to the bottom and the limiting hole 10 on its outer wall is aligned with the limiting ball 16 inside the fixing seat 6, the limiting spring 14 in the compressed state begins to release elastic potential energy, and the limiting spring 14 pushes the limiting plate 15 to move outward along the inner wall of the fixing seat 6. The resetting of the limiting plate 15 drives the limiting ball 16 to move radially outward, so that the limiting ball 16 is quickly stuck in the limiting hole 10 on the side wall of the filter column 7. Since the size of the limiting ball 16 matches the limiting hole 10, an interference fit is formed, which completes the fixed installation of the filter column 7, realizes the rapid replacement of the filter column 7, and ensures that the detection device continues to maintain high-efficiency detection performance.

[0038] Working principle: When using the detection device for hydrogen-doped mixed gas, the staff first starts the device by operating the button 3. Then the negative pressure device inside the device generates negative pressure to suck the mixed gas into the fixed seat 6. The mixed gas first passes through the filter plate 12, which intercepts large particles of dust in the mixed gas. Then the mixed gas passes through the adsorption column 13, which adsorbs water vapor in the mixed gas. Then the mixed gas enters the detector 1 through the connecting seat 5. After being detected by the detection equipment inside the detector 1, the test results are displayed on the display screen 2. The detected gas is discharged through the exhaust hole 4, thereby protecting the sensor and reducing the influence of environmental factors on the test results.

[0039] When the filter column 7 needs to be replaced, the staff pulls the fixing seat 6 outward through the handle 8 to make the fixing seat 6 detach from the inside of the filter column 7, and then aligns the positioning groove 9 on the top of the new fixing seat 6 with the positioning block 11 inside the filter column 7, and inserts the fixing seat 6 into the inside of the filter column 7. The outer wall of the fixing seat 6 squeezes the multiple limiting balls 16 on both sides of the inside of the filter column 7, so that the limiting balls 16 drive the limiting plates 15 to slide into the inside of the filter column 7 and allow the limiting springs 14 to be compressed. When the fixing seat 6 is inserted to the bottom, the limiting springs 14 push the limiting balls 16 back to fit into the limiting holes 10 on both sides of the fixing seat 6, thereby completing the replacement of the fixing seat 6, thereby achieving the effect of quickly replacing the fixing seat 6.

Claims

1. A detection device for hydrogen-doped mixed gas based on ultrasonic relaxation, comprising a detector (1), characterized in that: An air intake assembly is fixedly connected to the top of the detector (1), and a filter assembly is provided inside the air intake assembly; The filter assembly comprises a filter column (7), the outer wall of the filter column (7) is slidably connected to the inside of the air intake assembly, filter plates (12) are fixedly connected on both sides of the inside of the filter column (7), and the filter plates (12) are used to intercept large particles of dust in the mixed gas, an adsorption column (13) is fixedly connected at the center position of the inside of the filter column (7), and the adsorption column (13) is used to adsorb water vapor in the mixed gas, a positioning groove (9) is provided on the top of the outer wall of the filter column (7), and a plurality of limiting holes (10) are provided on both sides of the outer wall of the filter column (7), and the limiting holes (10) are distributed in an array shape, and a handle (8) is fixedly connected to the side wall of the filter column (7), and the handle (8) is used to assist personnel in removing the filter column (7) from the air intake assembly.

2. The detection device for hydrogen-doped mixed gas based on ultrasonic relaxation according to claim 1, characterized in that: A display screen (2) is fixedly connected to the side wall of the detector (1), and the display screen (2) is used to display equipment parameters and detection results.

3. The detection device for hydrogen-doped mixed gas based on ultrasonic relaxation according to claim 2, characterized in that: A plurality of operating buttons (3) are provided below the display screen (2), the bottoms of the plurality of operating buttons (3) are fixedly connected to the side wall of the detector (1), and the operating buttons (3) are distributed in an array.

4. The detection device for hydrogen-doped mixed gas based on ultrasonic relaxation according to claim 3, characterized in that: The bottom of the detector (1) is provided with a plurality of exhaust holes (4), the exhaust holes (4) being distributed in an array, and the operating button (3) is used to discharge the gas detected in the device.

5. The detection device for hydrogen-doped mixed gas based on ultrasonic relaxation according to claim 1, characterized in that: The air intake assembly comprises a connecting seat (5), and a side wall of the connecting seat (5) is fixedly connected to the top of the detector (1).

6. The detection device for hydrogen-doped mixed gas based on ultrasonic relaxation according to claim 5, characterized in that: The other side wall of the connecting seat (5) is fixedly connected to a fixing seat (6), and a positioning block (11) is fixedly connected to the upper inner wall of the fixing seat (6), and the cross section of the positioning block (11) is consistent with the groove shape of the positioning groove (9).

7. The detection device for hydrogen-doped mixed gas based on ultrasonic relaxation according to claim 6, characterized in that: Limiting balls (16) are provided on both left and right sides of the interior of the fixing seat (6), and the limiting balls (16) are distributed in an array shape. The side walls of the limiting balls (16) are fixedly connected to the limiting plates (15), and the limiting plates (15) and the outer walls of the limiting balls (16) are both slidably connected to the interior of the fixing seat (6).

8. The detection device for hydrogen-doped mixed gas based on ultrasonic relaxation according to claim 7, characterized in that: A limiting spring (14) is provided on the side of the limiting plate (15), one end of the limiting spring (14) is fixedly connected to the inside of the fixing seat (6), and the other end of the limiting spring (14) is fixedly connected to the side wall of the limiting plate (15).

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