A methyl tert-butyl ether sampling and detection device

Abstract

The utility model discloses a methyl tert -butyl ether sampling detection device relates to methyl tert -butyl ether technical field, including the extraction pipe, the surface fixedly connected with the pivot of extraction pipe, the surface of extraction pipe is opened with the square hole, the fixedly connected with the discharge gate of extraction pipe surface square hole department, the outside of pivot is inserted with the connecting shaft, the outside rotation is connected with the collection box of connecting shaft, the surface fixedly connected with the baffle of collection box. The utility model through baffle divides the inside of collection box into several cabins, through with the specified cabin corresponding mark rotates to the display hole department, then will sample liquid extraction to the inside of extraction pipe, then will device upset, then to the one side rotation limit rod of fixed plate arc shape, through the spring's elasticity, will piston rod push back, and stop moving at the front side of spacing septum, and the sample of extraction flows into the specified cabin inside due to the action of gravity, then rotates the knob to the next mark department again, thereby realizes the sample of multiple extraction and separates storage.

Description

Technical Field

[0001] This utility model relates to the field of methyl tert-butyl ether technology, specifically to a methyl tert-butyl ether sampling and detection device. Background Technology

[0002] Methyl tert-butyl ether (MTBE) is a commonly used gasoline additive, and its sampling and testing are crucial. In testing scenarios, multiple samplings are often required from different batches, locations, or reaction stages. Traditional sampling devices are mostly designed for single-sampling, which presents the following problems when repeated: frequent disassembly and assembly can introduce external impurities that contaminate the sample; repeated exposure to air can accelerate the volatilization of MTBE, leading to distortion of sample composition; when switching between different sampling points, residual samples in the device can easily cause cross-contamination; and repeated operations are time-consuming and labor-intensive, making it difficult to meet the needs of continuous monitoring or multi-scenario comparative testing. These pain points highlight the necessity of developing a device with multiple sampling capabilities that can ensure sample integrity.

[0003] Patent publication number CN213239604U discloses a stratified sampling device for liquid food testing, including a sampling rod for inserting into the liquid, a sampling ring for mounting on the sampling rod, and a handle. The sampling ring is a detachable component, comprising a clamping module and a sampling module, which are fixedly connected. The clamping module enables the sampling ring to be fixed to the sampling rod and detached from the sampling rod. The sampling module includes a storage tank for storing the sampled liquid and a sealing cover for opening and closing the storage tank. The handle is rotatably connected to the sampling rod, and the handle is connected to the sealing cover via a transmission mechanism so that the handle drives the sealing cover to slide when it rotates.

[0004] To address the issue of incomplete cleaning of sampling loops leading to sample contamination and compromised test results, existing technologies employ a detachable and simple design for the sampling loop, resulting in low cost and allowing it to be used as a disposable component. However, this approach still necessitates multiple sampling sessions, requiring sample collection each time. Utility Model Content

[0005] The purpose of this invention is to provide a sampling and detection device for methyl tert-butyl ether to solve the problems mentioned in the background art.

[0006] To solve the above-mentioned technical problems, the technical solution adopted by this utility model is as follows:

[0007] A sampling and testing device for methyl tert-butyl ether includes an extraction tube, a rotating shaft fixedly connected to the surface of the extraction tube, a square hole on the surface of the extraction tube, a discharge port fixedly connected to the square hole, a connecting shaft inserted into the outside of the rotating shaft, a collection box rotatably connected to the outside of the connecting shaft, partitions fixedly connected to the surface of the collection box, the partitions being arranged in a circumferential array and tangent to the inner wall of the collection box, the partitions dividing the interior of the collection box into several compartments, a connecting sleeve fixedly connected to the back of the collection box, the connecting sleeve penetrating the back plate of the collection box and flush with the bottom of the inner wall of the back plate of the collection box, a rubber sleeve fixedly connected to the inner wall surface of the connecting sleeve, the inner wall size of the rubber sleeve being slightly smaller, the discharge port being inserted into the inside of the rubber sleeve, the discharge port and the rubber sleeve being an interference fit, the rubber sleeve being made of a flexible material, and a knob fixedly connected to the front of the connecting shaft.

[0008] It also includes a positioning mechanism, an automatic extraction mechanism, and a quantitative mechanism;

[0009] The positioning mechanism is used to determine the location of the compartment;

[0010] The automatic sampling mechanism is used for automatic sampling by the device;

[0011] The quantitative mechanism is used to adjust the amount of sample taken.

[0012] A further improvement of this utility model is that: a extraction head is fixedly connected to the bottom of the extraction tube, the inner diameter of the extraction head is much smaller than the inner diameter of the extraction tube, a piston rod is movably connected inside the extraction tube, the length of the piston rod is greater than that of the extraction tube, a limit plate is fixedly connected to the top of the extraction tube, and a sleeve is fixedly connected to the outer wall of the extraction tube.

[0013] A further improvement of this utility model is that: a limiting partition is fixedly connected inside the extraction tube, the limiting partition is located above the discharge port, a round hole is opened in the middle of the limiting partition, and the piston rod passes through the limiting partition and extends to the bottom of the limiting partition.

[0014] A further improvement of the present invention is that the positioning mechanism includes a turntable, which is fixedly connected to the outside of the connecting shaft. The turntable is set on the top of the collection box. The surface of the turntable is marked with a number, which is distributed in a circular array. Each number is located at the top of the corresponding compartment inside the extraction tube. A protective shell is fixedly connected to the top of the collection box, and a display hole is opened on the top of the protective shell.

[0015] A further improvement of the present invention is that the automatic extraction mechanism includes a support plate and a spring. The support plate is fixedly connected to the top of the housing. A locking block is rotatably connected to the top of the support plate. One end of the spring is fixedly connected to the bottom of the inner wall of the housing. The other end of the spring is fixedly connected to a fixing plate. The fixing plate is fixedly connected to the top of the piston rod. One end of the fixing plate is arc-shaped.

[0016] A further improvement of the present invention is that the quantitative mechanism includes a damping shaft, which is fixedly connected to both sides of the extraction tube. A slot is rotatably connected to the side of the damping shaft, and a fixing screw is threaded to the side of the slot. The fixing screw passes through the side of the slot and extends into the inside of the slot. A limit rod is inserted into the inside of the slot. The limit rod is U-shaped and has a scale on its surface.

[0017] Due to the adoption of the above technical solution, the technological progress achieved by this utility model compared to the prior art is as follows:

[0018] 1. This utility model provides a sampling and testing device for methyl tert-butyl ether, which employs the cooperation of an extraction tube, extraction head, limiting partition, rotating shaft, discharge port, piston rod, limiting plate, sleeve, collection box, connecting shaft, partition, rubber sleeve, connecting sleeve, knob, protective shell, turntable, label, and display hole. By inserting the connecting shaft into the rotating shaft and then fitting the rubber sleeve onto the discharge port, a sealed connection is achieved between the extraction tube and the collection box. Rotating the knob causes the partition and turntable to rotate via the connecting shaft. The collection box is divided into several compartments by a partition. By rotating the corresponding number of the designated compartment to the display hole, the sampled liquid is drawn into the extraction tube. The device is then inverted, and the limiting rod is rotated to the arc-shaped side of the fixed plate. The piston rod is pushed backward by the elasticity of the spring and stops moving in front of the limiting partition. The extracted sample flows into the designated compartment due to gravity. Then, the knob is rotated to the next number, thus separating and storing multiple samples.

[0019] 2. This utility model provides a sampling and testing device for methyl tert-butyl ether, which uses a support plate, a locking block, a spring, a fixing plate, a damping shaft, a locking groove, a fixing screw, and a limiting rod. By loosening the fixing screw, the length is adjusted according to the scale on the limiting rod. After adjustment, the fixing screw is tightened, and the limiting rod is fixed by pressing it with the locking groove. Then, the angle of the limiting rod is adjusted to a vertical state, and then the fixing plate is pressed. The piston rod moves downward. When it is pressed to the lowest position, the locking block is rotated to fix the fixing plate. When sampling, the locking block is rotated, and the spring elasticity is used to automatically sample, thereby realizing quantitative sampling each time. Since the inner diameter of the sampling head is much smaller than the inner diameter of the sampling tube, a convex liquid surface is formed on the liquid surface in the extremely narrow tube. The surface tension generates additional pressure pointing towards the liquid interior, which hinders the liquid from flowing out. Attached Figure Description

[0020] Figure 1 This is a three-dimensional structural diagram of the methyl tert-butyl ether sampling and detection device of this utility model;

[0021] Figure 2 This is a schematic diagram of the quantitative mechanism of this utility model;

[0022] Figure 3 This is a cross-sectional view of the present invention;

[0023] Figure 4 This is a schematic diagram of the structure of the collection box of this utility model;

[0024] Figure 5 This is a schematic diagram of the internal structure of the collection box of this utility model;

[0025] Figure 6 This is a schematic diagram of the partition distribution structure of this utility model.

[0026] In the diagram: 3. Positioning mechanism; 4. Automatic extraction mechanism; 5. Quantitative mechanism; 11. Extraction tube; 12. Extraction head; 13. Limiting partition; 14. Rotating shaft; 15. Discharge port; 16. Piston rod; 17. Limiting plate; 18. Shell; 21. Collection box; 22. Connecting shaft; 23. Partition; 24. Rubber sleeve; 25. Connecting sleeve; 26. Knob; 31. Protective shell; 32. Turntable; 33. Label; 34. Display hole; 41. Support plate; 42. Locking block; 43. Spring; 44. Fixing plate; 51. Damping rotating shaft; 52. Slot; 53. Fixing screw; 54. Limiting rod. Detailed Implementation

[0027] The present invention will be further described in detail below with reference to embodiments:

[0028] Example 1

[0029] like Figure 1-5As shown, this utility model provides a sampling and detection device for methyl tert-butyl ether. A rotating shaft 14 is fixedly connected to the surface of the extraction tube 11. A square hole is opened on the surface of the extraction tube 11, and a discharge port 15 is fixedly connected to the square hole. A connecting shaft 22 is inserted into the outside of the rotating shaft 14, and a collection box 21 is rotatably connected to the outside of the connecting shaft 22. A partition 23 is fixedly connected to the surface of the collection box 21. The partitions 23 are arranged in a circumferential array and are tangent to the inner wall of the collection box 21. The partitions 23 divide the inside of the collection box 21 into several compartments for collecting... A connecting sleeve 25 is fixedly connected to the back of the collection box 21. The connecting sleeve 25 penetrates the back plate of the collection box 21 and is flush with the bottom of the inner wall of the back plate of the collection box 21. A rubber sleeve 24 is fixedly connected to the inner wall surface of the connecting sleeve 25. The inner wall size of the rubber sleeve 24 is slightly smaller. The discharge port 15 is inserted into the inside of the rubber sleeve 24. The discharge port 15 and the rubber sleeve 24 are interference fit. The rubber sleeve 24 is made of flexible material. A knob 26 is fixedly connected to the front of the connecting shaft 22. It also includes a positioning mechanism 3, an automatic extraction mechanism 4, and a quantitative mechanism 5. The positioning mechanism 3 uses... The automatic sampling mechanism 4 is used to view the location of the compartment; the automatic sampling mechanism 4 is used for automatic sampling; the quantitative mechanism 5 is used to adjust the sampling amount; the bottom of the sampling tube 11 is fixedly connected to the sampling head 12, the inner diameter of the sampling head 12 is much smaller than the inner diameter of the sampling tube 11; the inside of the sampling tube 11 is movably connected to the piston rod 16, the length of the piston rod 16 is greater than the sampling tube 11; the top of the sampling tube 11 is fixedly connected to the limit plate 17; the outer wall of the sampling tube 11 is fixedly connected to the sleeve 18; the inside of the sampling tube 11 is fixedly connected to the limit partition 13, and the limit partition 13 is set at the outlet. Above the feed inlet 15, a circular hole is provided in the middle of the limiting partition 13. The piston rod 16 passes through the limiting partition 13 and extends to the bottom of the limiting partition 13. The positioning mechanism 3 includes a turntable 32, which is fixedly connected to the outside of the connecting shaft 22. The turntable 32 is set on the top of the collection box 21. The surface of the turntable 32 is provided with a number 33, which is distributed in a circumferential array. Each number 33 is located at the top of the corresponding compartment inside the extraction tube 11. A protective shell 31 is fixedly connected to the top of the collection box 21. A display hole 34 is provided on the top of the protective shell 31.

[0030] In this embodiment, by inserting the connecting shaft 22 into the rotating shaft 14 and then fitting the rubber sleeve 24 onto the discharge port 15, the extraction tube 11 and the collection box 21 are sealed together. By rotating the knob 26, the knob 26 drives the partition 23 and the turntable 32 to rotate via the connecting shaft 22. The partition 23 divides the interior of the collection box 21 into several compartments. By rotating the label 33 corresponding to the designated compartment to the display hole 34, the sampled liquid is extracted into the extraction tube 11. The device is then inverted, and the limiting rod 54 is rotated toward the arc-shaped side of the fixed plate 44. By utilizing the elasticity of the spring 43, the piston rod 16 is pushed backward and stops moving in front of the limiting partition 13. The extracted sample flows into the designated compartment due to gravity. Then, the knob 26 is rotated to the next label, thereby achieving separate storage of multiple extracted samples.

[0031] Example 2

[0032] like Figure 1-5 As shown, based on Embodiment 1, this utility model provides a technical solution: Preferably, the automatic extraction mechanism 4 includes a support plate 41 and a spring 43. The support plate 41 is fixedly connected to the top of the housing 18, and a locking block 42 is rotatably connected to the top of the support plate 41. One end of the spring 43 is fixedly connected to the bottom of the inner wall of the housing 18, and the other end of the spring 43 is fixedly connected to a fixing plate 44. The fixing plate 44 is fixedly connected to the top of the piston rod 16, and one end of the fixing plate 44 is arc-shaped. The metering mechanism 5 includes a damping shaft 51, which is fixedly connected to both sides of the extraction tube 11. A slot 52 is rotatably connected to the side of the damping shaft 51, and a fixing screw 53 is threadedly connected to the side of the slot 52. The fixing screw 53 penetrates the side of the slot 52 and extends into the interior of the slot 52. A limit rod 54 is inserted into the interior of the slot 52. The limit rod 54 is U-shaped and has a scale on its surface.

[0033] In this embodiment, by loosening the fixing screw 53, the length is adjusted according to the scale on the limiting rod 54. After the adjustment is completed, the fixing screw 53 is tightened, and the limiting rod 54 is fixed by pressing the limiting rod 54 with the slot 52. Then, the angle of the limiting rod 54 is adjusted to a vertical state, and then the fixing plate 44 is pressed. The piston rod 16 moves downward. When it is pressed to the lowest position, the rotating block 42 fixes the fixing plate 44. When extracting, the rotating block 42 automatically samples using the elastic action of the spring 43, thereby achieving quantitative sampling each time. Since the inner diameter of the extraction head 12 is much smaller than the inner diameter of the extraction tube 11, a convex liquid surface is formed on the liquid surface in the extremely thin tube. The surface tension generates additional pressure pointing towards the liquid interior, hindering the liquid from flowing out.

[0034] The working principle of this methyl tert-butyl ether sampling and testing device will be explained in detail below.

[0035] like Figure 1-5As shown, by inserting the connecting shaft 22 into the rotating shaft 14, and then fitting the rubber sleeve 24 onto the discharge port 15, a sealed connection is achieved between the extraction tube 11 and the collection box 21. By rotating the knob 26, the knob 26 drives the partition 23 and the turntable 32 to rotate via the connecting shaft 22. The partition 23 divides the interior of the collection box 21 into several compartments. By rotating the label 33 corresponding to the designated compartment to the display hole 34, and then by loosening the fixing screw 53, the length is adjusted according to the scale on the limit rod 54. After adjustment, the fixing screw 53 is tightened, and the limit rod 54 is fixed by pressing the slot 52. Then, the angle of the limit rod 54 is adjusted to a vertical state, and then the fixing plate 44 is pressed, causing the piston rod 16 to move downwards. When the device reaches its lowest point, the rotating block 42 fixes the fixed plate 44. During extraction, rotating the block 42 automatically extracts samples using the elastic force of the spring 43, thus achieving quantitative sampling each time. Since the inner diameter of the extraction head 12 is much smaller than the inner diameter of the extraction tube 11, a convex liquid surface is formed on the liquid surface in the extremely thin tube. The surface tension generates additional pressure pointing towards the liquid interior, hindering the liquid from flowing out. Then, the device is inverted, and the limiting rod 54 is rotated towards the arc-shaped side of the fixed plate 44. By utilizing the elasticity of the spring 43, the piston rod 16 is pushed backward and stops moving in front of the limiting partition 13. The extracted sample flows into the designated chamber due to gravity. Then, the knob 26 is rotated to the next mark, thus achieving separate storage of multiple extracted samples.

[0036] The present invention has been described in detail above. However, modifications or improvements can be made to it, which will be obvious to those skilled in the art. Therefore, any modifications or improvements that do not depart from the spirit of the present invention are within the protection scope of the present invention.

Claims

1. A sampling and detection device for methyl tert-butyl ether, comprising an extraction tube (11), characterized in that: A rotating shaft (14) is fixedly connected to the surface of the extraction tube (11). A square hole is opened on the surface of the extraction tube (11). A discharge port (15) is fixedly connected to the square hole on the surface of the extraction tube (11). A connecting shaft (22) is inserted into the outside of the rotating shaft (14). A collection box (21) is rotatably connected to the outside of the connecting shaft (22). A partition (23) is fixedly connected to the surface of the collection box (21). The partition (23) is arranged in a circumferential array and is tangent to the inner wall of the collection box (21). The partition (23) divides the inside of the collection box (21) into several compartments. A connecting sleeve (25) is fixedly connected to the back of the collection box (21). The connecting sleeve (25) penetrates the back plate of the collection box (21) and is flush with the bottom of the inner wall of the back plate of the collection box (21). A rubber sleeve (24) is fixedly connected to the inner wall surface of the connecting sleeve (25). The inner wall size of the rubber sleeve (24) is slightly smaller. The discharge port (15) is inserted into the inside of the rubber sleeve (24). The discharge port (15) and the rubber sleeve (24) are interference fit. The rubber sleeve (24) is made of flexible material. A knob (26) is fixedly connected to the front of the connecting shaft (22). It also includes a positioning mechanism (3), an automatic extraction mechanism (4), and a quantitative mechanism (5); The positioning mechanism (3) is used to check the location of the cabin; The automatic sampling mechanism (4) is used for automatic sampling by the device; The quantitative mechanism (5) is used to adjust the amount of sample taken.

2. The methyl tert-butyl ether sampling and detection device according to claim 1, characterized in that: The bottom of the extraction tube (11) is fixedly connected to an extraction head (12), the inner diameter of the extraction head (12) is much smaller than the inner diameter of the extraction tube (11), a piston rod (16) is movably connected inside the extraction tube (11), the length of the piston rod (16) is greater than that of the extraction tube (11), a limit plate (17) is fixedly connected to the top of the extraction tube (11), and a sleeve (18) is fixedly connected to the outer wall of the extraction tube (11).

3. The methyl tert-butyl ether sampling and detection device according to claim 2, characterized in that: The extraction tube (11) is fixedly connected to a limiting partition (13), which is located above the discharge port (15). A round hole is provided in the middle of the limiting partition (13), and the piston rod (16) extends through the limiting partition (13) to the bottom of the limiting partition (13).

4. The methyl tert-butyl ether sampling and detection device according to claim 1, characterized in that: The positioning mechanism (3) includes a turntable (32), which is fixedly connected to the outside of the connecting shaft (22). The turntable (32) is set on the top of the collection box (21). The surface of the turntable (32) is marked with numbers (33). The numbers (33) are distributed in a circular array, and each number (33) is located at the top of the corresponding compartment inside the extraction tube (11). The top of the collection box (21) is fixedly connected with a protective shell (31), and the top of the protective shell (31) is provided with a display hole (34).

5. The methyl tert-butyl ether sampling and detection device according to claim 2, characterized in that: The automatic extraction mechanism (4) includes a support plate (41) and a spring (43). The support plate (41) is fixedly connected to the top of the housing (18). A locking block (42) is rotatably connected to the top of the support plate (41). One end of the spring (43) is fixedly connected to the bottom of the inner wall of the housing (18). The other end of the spring (43) is fixedly connected to a fixing plate (44). The fixing plate (44) is fixedly connected to the top of the piston rod (16). One end of the fixing plate (44) is arc-shaped.

6. The methyl tert-butyl ether sampling and detection device according to claim 1, characterized in that: The quantitative mechanism (5) includes a damping shaft (51), which is fixedly connected to both sides of the extraction tube (11). The side of the damping shaft (51) is rotatably connected to a slot (52), and the side of the slot (52) is threadedly connected to a fixing screw (53). The fixing screw (53) passes through the side of the slot (52) and extends into the inside of the slot (52). A limit rod (54) is inserted into the inside of the slot (52). The limit rod (54) is U-shaped and has a scale on its surface.

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