Analyzer for non-methane total hydrocarbon of methane

Abstract

The invention relates to the technical field of gas analysis, and discloses a methane non-methane total hydrocarbon analyzer which comprises a base, the upper end of the base is connected with an analysis instrument, the analysis instrument is connected with a sealing cover and a connecting pipe, one side of the connecting pipe is connected with a conveying bent pipe, the lower end of the conveying bent pipe is provided with a bottom groove, and the lower end of the conveying bent pipe is connected with a fixing frame. A cylinder hoop is connected to the lower end of the fixing frame and fixedly connected to the base, a pushing cylinder is connected to the cylinder hoop, a lantern ring is connected to the telescopic end of the pushing cylinder, and a connecting frame is connected to the lantern ring. The conveying bent pipe is used for replacing manual sample taking and placing, the problem that the internal detection environment of the analysis instrument is interfered is avoided, when the samples are put into the conveying bent pipe, the samples can sequentially enter the analysis instrument to be analyzed and detected, and the problem that analysis data have errors due to misoperation of operators is avoided; the analysis efficiency and the analysis precision of methane and non-methane hydrocarbon are greatly improved.

Description

Technical Field

[0001] The invention relates to the technical field of gas analysis, and in particular to an analyzer for methane and non-methane total hydrocarbons. Background Art

[0002] The main function of the analysis equipment of methane and non-methane total hydrocarbons is to measure the content of methane and non-methane total hydrocarbons in ambient air and exhaust gas from pollution sources. The content of this gas in the air is often used as an important indicator for evaluating air quality.

[0003] There are many analytical equipment for methane and non-methane total hydrocarbons. Among them, the more common analytical equipment includes instruments for detecting chromatographic peaks. The analyzer is used to measure the peaks of each sample. The maximum value on the chromatographic peak is the basis for qualitative analysis, and the area covered by the chromatographic peak depends on the content of the corresponding component, so the peak area is the basis for quantitative analysis. By analyzing the chromatogram, qualitative and quantitative analysis results can be obtained, so as to know the content of methane and non-methane total hydrocarbon components in the sample. Traditional equipment detection in this direction requires placing the sample in the analytical instrument and then covering it with a cover plate. After the analysis, the sample must be taken out by opening the cover plate. However, most analytical equipment is greatly affected by external light, and it is necessary to ensure the sealing of the cover plate when it is covered. Frequent opening and closing of the cover plate will cause differences in the measurement environment of the same batch of samples, affecting the accuracy of the analysis data. In addition, the cover plate structure can be opened automatically during the equipment analysis, which poses a risk of human interference with the analysis accuracy.

[0004] Based on this, an analyzer for methane and non-methane total hydrocarbons is proposed. Summary of the invention

[0005] The purpose of the present invention is to provide an analyzer for methane and non-methane total hydrocarbons in order to solve the above problems.

[0006] In order to achieve the above object, the present invention adopts the following technical solutions: A methane non-methane total hydrocarbon analyzer comprises a base, an analysis instrument is connected to the upper end of the base, a sealing cover and a connecting pipe are connected to the analysis instrument, a delivery elbow is connected to one side of the connecting pipe, a bottom groove is provided at the lower end of the delivery elbow, a fixing frame is connected to the lower end of the fixing frame, a cylinder hoop is connected to the lower end of the fixing frame, the cylinder hoop is fixedly connected to the base, and a push cylinder is connected to the cylinder hoop; The telescopic end of the push cylinder is connected to a collar, the collar is connected to a connecting frame, the connecting frame is connected to a plate frame, the plate frame is connected to a partition, the telescopic end of the push cylinder is connected to a translation bar, the upper end of the translation bar is rotatably connected to a push bar, the push bar is connected to a check bar, and a spring is connected between the check bar and the translation bar; One side of the delivery elbow is connected to a transmission mechanism for pushing a tank body storing methane and non-methane total hydrocarbons into the analysis instrument.

[0007] Preferably, the lower end of the conveying elbow is connected with a guide path.

[0008] Preferably, two partitions are provided, and the two partitions are connected to the plate frame in parallel with each other.

[0009] Preferably, a strip structure is connected to the plate frame, and side slide rails are symmetrically connected to the outer side of the conveying elbow, and the strip structure on the plate frame is slidably connected to the side slide rails.

[0010] Preferably, the telescopic end of the pushing cylinder is connected to a limit ring.

[0011] Preferably, the transmission mechanism includes a deflection bar, the lower end of the conveying bend is connected to an axis frame, the axis frame is connected to a limiting frame, the conveying bend is slidably connected to a pushing column, one end of the pushing column is connected to a clamping path, the upper end of the base is connected to a motor through a fixed sleeve, the output end of the motor is connected to a docking joint, the telescopic end of the pushing cylinder is rotatably connected to a cam, and the cam is connected to a gear ring.

[0012] Preferably, the lower end of the conveying elbow is connected to a bottom slide rail, and one side of the clamping path is connected to a slide plate.

[0013] Preferably, one end of the deflection strip is rotatably connected to a roller, and the roller is in rolling contact in the clamping track.

[0014] In summary, due to the adoption of the above technical solution, the beneficial effects of the present invention are: 1. The present application adopts a conveying elbow structure and utilizes the conveying elbow to replace manual sample placement, thereby avoiding the problem of interfering with the internal detection environment of the analytical instrument. When the sample is put into the conveying elbow, the sample can enter the analytical instrument in turn to complete the analysis and detection, thereby avoiding the problem of errors in the analysis data caused by operator misoperation, and greatly improving the analysis efficiency and accuracy of methane and non-methane total hydrocarbons.

[0015] 2. The present application adopts a partition structure, which can further seal the conveying elbow structure, reduce the light transmittance of the conveying elbow, and prevent external light from entering the analytical instrument. At the same time, by setting two partitions to move alternately, it plays a role in controlling the orderly feeding of samples, avoiding squeezing between samples, and increasing the burden of the push column to push the samples into the analytical instrument. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 A schematic diagram of the overall structure of an analytical instrument provided in an embodiment of the present invention is shown; Figure 2A schematic diagram of the structure of an analysis instrument provided in an embodiment of the present invention when viewed from above is shown; Figure 3 A schematic diagram showing the structure of the interior of a delivery elbow provided according to an embodiment of the present invention is shown; Figure 4 A schematic diagram of the structure of the deflection strip connection provided by an embodiment of the present invention is shown; Figure 5 A schematic diagram of the explosion structure of the connection of the push cylinder provided according to an embodiment of the present invention is shown; Figure 6 A schematic structural diagram of a bottom slide rail connection provided according to an embodiment of the present invention is shown.

[0017] Legend: 1. Base; 2. Analytical instrument; 3. Sealing cover; 4. Connecting pipe; 5. Conveying elbow; 6. Cylinder hoop; 7. Fixed frame; 8. Guide way; 9. Side slide rail; 10. Plate frame; 11. Partition plate; 12. Clamping way; 13. Push column; 14. Roller; 15. Deflection strip; 16. Limiting frame; 17. Connecting frame; 18. Ring; 19. Push cylinder; 20. Fixed sleeve; 21. Motor; 22. Butt joint; 23. Cam; 24. Bottom groove; 25. Slide plate; 26. Axle frame; 27. Limiting ring; 28. Translation strip; 29. ​​Push strip; 30. Check strip; 31. Spring; 32. Gear ring; 33. Bottom slide rail. DETAILED DESCRIPTION

[0018] 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.

[0019] See also Figure 1-6 , the present invention provides a technical solution: A methane non-methane total hydrocarbon analyzer comprises a base 1, an analyzer 2 is connected to the upper end of the base 1, the analyzer 2 is fixedly connected to the base 1, a sealing cover 3 and a connecting pipe 4 are connected to the analyzer 2, the sealing cover 3 is a sample tank outlet, the connecting pipe 4 is a sample tank input port, a delivery elbow 5 is connected to one side of the connecting pipe 4, a bottom groove 24 is provided at the lower end of the delivery elbow 5, a fixing frame 7 is connected to the lower end of the delivery elbow 5, the fixing frame 7 is used to ensure the firmness of the connection of the delivery elbow 5, a cylinder hoop 6 is connected to the lower end of the fixing frame 7, the cylinder hoop 6 is fixedly connected to the base 1, a push cylinder 19 is connected to the cylinder hoop 6, the push cylinder 19 is fixed by the cylinder hoop 6, the movement state of the push cylinder 19 when it is turned on is first extended and then contracted, and the push cylinder 19 is in a stopped state between the extension and contraction, and the tank body can be pushed into the analyzer 2 by the push column 13 during the stop time; The telescopic end of the push cylinder 19 is connected with a collar 18, a connecting frame 17 is connected to the collar 18, a plate frame 10 is connected to the connecting frame 17, the collar 18 is used to drive the connecting frame 17 to move, the connecting frame 17 is used to drive the plate frame 10 to move, a partition 11 is connected to the plate frame 10, two partitions 11 are provided, the positions of the two partitions 11 are different in height, but the two partitions 11 are parallel to each other, the telescopic end of the push cylinder 19 is connected with a translation bar 28, the upper end of the translation bar 28 is rotatably connected with a push bar 29, the push bar 29 is connected with a check bar 30, the partial structure of the check bar 30 pushes the bars 29 to be parallel to each other, a spring 31 is connected between the check bar 30 and the translation bar 28, and the spring 31 is used to pull the push bar 29 to a vertical state; One side of the conveying elbow 5 is connected to a transmission mechanism for pushing the tank body storing methane and non-methane total hydrocarbons into the analysis instrument 2. The transmission mechanism is used to send the sample tank body into the analysis instrument 2 to complete the analysis of the sample. The analysis instrument 2 here is a relatively mature analysis product today, and its analysis principle is a mature analysis technology today, which will not be elaborated here.

[0020] Specifically, Figure 2 As shown, the lower end of the conveying curved pipe 5 is connected to a guide path 8, and the guide path 8 is used to limit and correct the push bar 29, thereby improving the stability of the movement of the push bar 29.

[0021] Specifically, Figure 3 As shown, two partitions 11 are provided, and the two partitions 11 are connected to the plate frame 10 in parallel with each other. A slot is provided on the conveying elbow 5, and the two partitions 11 are slidably connected at the slot. The opening of the conveying elbow 5 is opened and closed alternately between the two partitions 11, so as to avoid external light from entering the analysis instrument 2 to interfere with the determination of analysis data to the greatest extent.

[0022] Specifically, Figure 3As shown, a strip structure is connected to the plate frame 10, and two strip structures are provided. The two strip structures are symmetrically connected to the inner side of the plate frame 10, and a side slide rail 9 is symmetrically connected to the outer side of the conveying elbow 5. The strip structure on the plate frame 10 is slidably connected to the side slide rail 9. By providing the side slide rail 9, the stability of the plate frame 10 in horizontal movement is improved.

[0023] Specifically, Figure 5 As shown, the telescopic end of the push cylinder 19 is connected to the limit ring 27, and the limit ring 27 and the translation bar 28 are used to limit the sleeve ring 18, thereby ensuring the stability of the push cylinder 19 driving the sleeve ring 18 to move.

[0024] Specifically, Figure 5 As shown, the transmission mechanism includes a deflection bar 15, which is in an inclined state in a natural state until one side of the deflection bar 15 abuts against the limit frame 16. After the deflection bar 15 completes driving the clamping path 12 to move, the deflection bar 15 is still in an inclined state, and the inclination is away from the direction of the conveying bend 5. The resetting of the deflection bar 15 relies on the weight of the roller 14. At the same time, the length of the upper half of the deflection bar 15 is greater than the length of the lower end. The above structures can realize the structural resetting of the deflection bar 15 after deflection. The lower end of the conveying bend 5 is connected to an axis frame 26, and an axial structure is provided on the axis frame 26. The limit frame 16 is connected to the axis frame 26. The conveying bend 5 is slidably connected to a push column 13, and the conveying bend 5 is pushed by the reciprocating movement of the push column 13. The internal sample enters the analytical instrument 2, and one end of the push column 13 is connected to the clamping path 12. The upper end of the base 1 is connected to the motor 21 through the fixed sleeve 20. The fixed sleeve 20 is used to ensure the firmness of the connection of the motor 21. The output end of the motor 21 is connected to the docking joint 22, and the docking joint 22 is provided with a toothed structure. The telescopic end of the push cylinder 19 is rotated and connected to the cam 23. The cam 23 has a teardrop-shaped structure and rotates by relying on the cam 23 to achieve the deflection of the deflection bar 15 set on one side. The cam 23 is connected to a toothed ring 32. When the cam 23 and the docking joint 22 are docked, the toothed ring 32 can complete the engagement between the toothed ring 32 and the toothed structure on the docking joint 22, so that when the docking joint 22 rotates, the cam 23 rotates synchronously.

[0025] Specifically, Figure 4 and Figure 6 As shown, the lower end of the conveying elbow 5 is connected to a bottom slide rail 33, and one side of the clamping path 12 is connected to a slide plate 25, which is slidably connected to the bottom slide rail 33. By setting the slide plate 25 and the bottom slide rail 33 structure, the stability of the horizontal movement of the push column 13 is improved.

[0026] Specifically, Figure 4As shown, one end of the deflection bar 15 is rotatably connected to a roller 14, and the roller 14 rolls in contact with the clamping track 12. The resetting of the deflection bar 15 depends on the weight of the roller 14, and the roller 14 rolls in the clamping track 12, so that the clamping track 12 moves in the horizontal direction. Since there is rolling contact between the roller 14 and the clamping track 12, the friction between the structures is greatly reduced, which is beneficial to the transmission of the structure.

[0027] In summary, the methane and non-methane total hydrocarbon analyzer provided in this embodiment needs to place the sample in a tank container, classify the sample by label, and place the tank container in the delivery elbow 5 in sequence, thus completing the preparation work before sample analysis; Then the operator starts the push cylinder 19, the motor 21 and the analytical instrument 2, the telescopic end of the push cylinder 19 is opened and extended, and the connecting frame 17 connected to the telescopic end of the push cylinder 19 is used to drive the plate frame 10 to move in the horizontal direction, and the plate frame 10 drives the two partitions 11 connected thereto to move, and the two partitions 11 are arranged alternately up and down in parallel with each other. When one of the partitions 11 seals the conveying elbow 5, the other partition 11 is away from the conveying elbow 5, and the two partitions 11 are opened and closed alternately to ensure that the tank body is transported from top to bottom in sequence. The transportation state of the tank body: falls above the uppermost partition 11, falls above the lowermost partition 11, and then enters the inside of the conveying elbow 5; The tank body inside the conveying elbow 5 is pushed to move by the push bar 29 connected to the telescopic end of the push cylinder 19. When the push bar 29 pushes the tank body to move, one end of the push bar 29 is slidably connected to the bottom groove 24. When the push bar 29 contacts the end of the bottom groove 24 close to the push cylinder 19, the push bar 29 is deflected, the spring 31 structure is stretched, and then the upper end of the push bar 29 slides on the guide path 8. When the telescopic end of the push cylinder 19 is extended to the maximum distance, the cam 23 connected to the telescopic end of the push cylinder 19 is connected to the docking joint 22. A toothed structure is provided on the docking joint 22. The docking joint 22 is engaged with the toothed ring 32 on the cam 23. The motor 21 drives the cam 23 to rotate at a low speed. In a natural state, the tip of the cam 23 is vertically downward. At this time, one end of the deflection bar 15 abuts against the cam 23. By setting a limit frame 16, the cam 23 can abut against the lower end of the deflection bar 15 after moving. As the cam 23 starts to rotate, one end of the cam 23 abuts against the axis of the deflection bar 15 around the axis frame 26. The deflection bar 15 rotates, and the roller 14 connected to the upper end of the deflection bar 15 slides in the clamping path 12, so that the slide plate 25 on one side of the clamping path 12 slides on the bottom slide rail 33 toward the side of the delivery elbow 5, driving the push column 13 to push the tank body in the delivery elbow 5 to be transported into the analysis instrument 2 through the connecting pipe 4. After the detection is completed, the sample tank body can be taken out at the sealing cover 3, and then the cylinder 19 is pushed to start contracting to complete the reset of the overall structure, that is, the content data analysis of methane and non-methane total hydrocarbons of the sample is completed. The device can reduce the influence of external light on the analysis data, and the samples are tested in an orderly manner, thereby improving the analysis efficiency of methane and non-methane total hydrocarbons.

[0028] The above description of the embodiments enables those skilled in the art to implement or use the present invention. Various modifications to these embodiments will be apparent to those skilled in the art, and the general principles defined herein may be implemented in other embodiments without departing from the spirit or scope of the present invention. Therefore, the present invention will not be limited to the embodiments shown herein, but will conform to the widest scope consistent with the principles and novel features disclosed herein.

Claims

1. A methane and non-methane total hydrocarbon analyzer, comprising a base (1), characterized in that: The upper end of the base (1) is connected to an analysis instrument (2), the analysis instrument (2) is connected to a sealing cover (3) and a connecting pipe (4), one side of the connecting pipe (4) is connected to a delivery elbow (5), the lower end of the delivery elbow (5) is provided with a bottom groove (24), the lower end of the delivery elbow (5) is connected to a fixing frame (7), the lower end of the fixing frame (7) is connected to a cylinder hoop (6), the cylinder hoop (6) is fixedly connected to the base (1), and the cylinder hoop (6) is connected to a push cylinder (19); The telescopic end of the push cylinder (19) is connected to a collar (18), the collar (18) is connected to a connecting frame (17), the connecting frame (17) is connected to a plate frame (10), the plate frame (10) is connected to a partition (11), the telescopic end of the push cylinder (19) is connected to a translation bar (28), the upper end of the translation bar (28) is rotatably connected to a push bar (29), the push bar (29) is connected to a check bar (30), and a spring (31) is connected between the check bar (30) and the translation bar (28); One side of the delivery elbow (5) is connected to a transmission mechanism for pushing a tank body storing methane and non-methane total hydrocarbons into the analysis instrument (2).

2. The analyzer for methane and non-methane total hydrocarbons according to claim 1, characterized in that: The lower end of the conveying curved pipe (5) is connected to a guide path (8).

3. The analyzer of methane and non-methane total hydrocarbons according to claim 1, characterized in that: Two partition plates (11) are provided, and the two partition plates (11) are connected to the plate frame (10) in parallel with each other.

4. The analyzer for methane and non-methane total hydrocarbons according to claim 1, characterized in that: The plate frame (10) is connected to a strip structure, the outer side of the conveying elbow (5) is symmetrically connected to a side slide rail (9), and the strip structure on the plate frame (10) is slidably connected to the side slide rail (9).

5. The analyzer for methane and non-methane total hydrocarbons according to claim 1, characterized in that: The telescopic end of the pushing cylinder (19) is connected to a limit ring (27).

6. The analyzer for methane and non-methane total hydrocarbons according to claim 1, characterized in that: The transmission mechanism comprises a deflection bar (15), the lower end of the conveying curved pipe (5) is connected to an axis frame (26), the axis frame (26) is connected to a limit frame (16), the conveying curved pipe (5) is slidably connected to a push column (13), one end of the push column (13) is connected to a clamping path (12), the upper end of the base (1) is connected to a motor (21) through a fixing sleeve (20), the output end of the motor (21) is connected to a docking joint (22), the telescopic end of the push cylinder (19) is rotatably connected to a cam (23), and the cam (23) is connected to a gear ring (32).

7. The analyzer for methane and non-methane total hydrocarbons according to claim 6, characterized in that: The lower end of the conveying curved pipe (5) is connected to a bottom slide rail (33), and one side of the clamping path (12) is connected to a slide plate (25).

8. The analyzer for methane and non-methane total hydrocarbons according to claim 6, characterized in that: One end of the deflection strip (15) is rotatably connected to a roller (14), and the roller (14) is in rolling contact with the clamping track (12).

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