Sample treatment device with high sealing performance

Abstract

The utility model relates to the technical field of radionuclide analysis, in particular to a high-sealing-performance sample processing device which comprises a large glass tube and a baffle, a sample boat is movably arranged in the large glass tube, a first gland is arranged at one end of the large glass tube, and a second gland is arranged at the other end of the large glass tube; an inlet connecting pipe is arranged at the other end of the first gland, an outlet connecting pipe is arranged at the other end of the second gland, cooling water pipes are annularly arranged outside the first gland and the second gland, and the two cooling water pipes are fixedly connected with the outer wall of the first gland and the outer wall of the second gland respectively. Water inlets and outlets are respectively formed in two ends of the two cooling water pipes; and a small glass tube is arranged between the large glass tube and the outlet connecting tube. According to the utility model, the baffle is arranged on the left side of the top end of the funnel adapter tube on the outlet connecting tube, and the baffle cannot prevent gas from flowing out, but can prevent flowing substances of a sample from flowing out, for example, grease from flowing out to block the outlet, so that the sample is lost or a large glass tube bursts.

Description

Technical Field

[0001] The utility model relates to the technical field of radionuclide analysis, and specifically relates to a sample processing device with high sealing performance. Background Technique

[0002] At present, the tritium carbon oxidation furnace is mainly used to measure tritium and carbon-14 in samples such as biological, environmental, and soil samples. After the nuclear contaminated water from the Fukushima nuclear power plant in Japan was discharged into the sea, a large amount of radionuclides such as tritium and carbon-14 were released into the ocean, resulting in a significant increase in the usage of the above-mentioned device. At the same time, due to the good programmed temperature rise of the carbon oxidation furnace, it is also necessary to use this furnace in experiments that require carbonization, ashing, and oxidation pretreatment of samples such as Sr-90 measurement.

[0003] The structure of the tritium carbon oxidation furnace mainly consists of a heater, a quartz glass tube, and a gas path system. Since the quartz glass tube and the frosted glass stopper are only fixed by the friction at the frosted part, when there is unstable air flow, or when there is an open flame or deflagration phenomenon, the frosted glass stopper often sprays out and breaks. The sudden ejection of the glass frosted stopper leads to the failure of the experiment. At the same time, this component is very likely to directly hit the ground and break. If it sprays on people, the situation will be even more serious. Content of the Utility Model

[0004] The purpose of the utility model is to provide a sample processing device with high sealing performance to solve the problems raised in the above background technique.

[0005] To achieve the above purpose, the utility model provides the following technical solutions:

[0006] A sample processing device with high sealing performance, including

[0007] a large glass tube and a baffle. A sample boat is movably arranged inside the large glass tube. One end of the large glass tube is provided with a gland one, and the other end of the large glass tube is provided with a gland two;

[0008] The other end of the gland one is provided with an inlet connecting pipe, and the other end of the gland two is provided with an outlet connecting pipe. A cooling water pipe is annularly arranged outside the gland one and the gland two. The two cooling water pipes are respectively fixedly connected to the outer walls of the gland one and the gland two. The two ends of the two cooling water pipes are respectively provided with water inlets and outlets;

[0009] A small glass tube is arranged between the large glass tube and the outlet connecting pipe. Copper oxide wires are spirally wound around the outer wall of one end of the small glass tube located inside the large glass tube. A pressing mechanism is arranged between the small glass tube and the outlet connecting pipe;

[0010] Clamping mechanisms one are arranged on both sides of the inlet connecting pipe and the gland one, and clamping mechanisms two are arranged on both sides of the outlet connecting pipe and the gland two;

[0011] A heater, the heater is arranged outside the upper and lower ends of a large glass tube, and a heat dissipation channel is arranged between the two heaters and the first gland and the second gland.

[0012] Preferably, the pressing mechanism includes a middle tube of the outlet pipe and a pressing nut. The middle tube of the outlet pipe is fixedly sleeved in the middle of one end of the outlet connecting pipe far away from the large glass tube. One end of the small glass tube passes through the middle tube of the outlet pipe and is located outside the outlet connecting pipe. The middle tube of the outlet pipe is threadedly connected with the pressing nut outside the outlet connecting pipe. The pressing mechanism further includes a washer and a second sealing ring. The washer and the second sealing ring are sequentially arranged between the inner sides of the middle tube of the outlet pipe and the pressing nut. One end of the washer is close to the middle tube of the outlet pipe, and one end of the second sealing ring is close to the pressing nut.

[0013] Preferably, the first clamping mechanism includes a first screw, a first clamping block and a first wing nut. The first clamping blocks are symmetrically arranged outside the two sides of the inlet connecting pipe and the first gland. The first screw is movably installed between the two first clamping blocks. The first wing nut is movably installed at one end of the first screw close to the inlet connecting pipe. The second clamping mechanism includes a second screw, a second clamping block and a second wing nut. The second clamping blocks are symmetrically arranged outside the two sides of the outlet connecting pipe and the second gland. The second screw is movably installed between the two second clamping blocks. The second wing nut is movably installed at one end of the second screw close to the outlet connecting pipe.

[0014] Preferably, pins are sleeved between the first clamping blocks outside the two sides of the first gland and the first screw, and between the second clamping blocks outside the two sides of the second gland and the second screw.

[0015] Preferably, a first sealing ring is arranged between the end of the first gland and the inlet connecting pipe and between the end of the second gland and the outlet connecting pipe.

[0016] Preferably, a funnel adapter is communicated with the bottom end of the middle part of the outlet connecting pipe, and a thread groove is arranged on the outer wall of the funnel adapter.

[0017] Compared with the prior art, the beneficial effects of the utility model are as follows:

[0018] 1. For this highly sealed sample processing device, by arranging a baffle on the top left side of the outlet connecting pipe where the funnel adapter is located, the baffle will not block the outflow of gas, but can prevent the flowing substances of the sample from flowing out. For example, grease flows out and blocks the outlet, resulting in sample loss or the bursting of the large glass tube.

[0019] 2. The high-sealing sample processing device has cooling water pipes arranged annularly outside the first gland and the second gland. When water flows through the cooling water pipes, the first gland and the second gland will be cooled. Since the boiling point of water is 100 degrees Celsius, the temperature of the first sealing ring will not be too high. When the temperature of the first sealing ring is too high, it is likely to melt or age. Therefore, by cooling with the cooling water pipes, it can be ensured that the temperature of the first sealing ring will not be too high, thereby improving the service life of the first sealing ring. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 is a schematic cross-sectional structure view of the whole of the present utility model;

[0021] Figure 2 is a schematic installation view of the outlet connection pipe of the present utility model;

[0022] Figure 3 is an exploded structure view of the present utility model.

[0023] 1. Large glass tube; 2. First gland; 3. Second gland; 4. Inlet connection pipe; 5. Outlet connection pipe; 6. Small glass tube; 7. Middle tube of the outlet pipe; 8. Compression nut; 9. Washer; 10. Second sealing ring; 11. First screw; 12. First clamping block; 13. First wing nut; 14. Second screw; 15. Second clamping block; 16. Second wing nut; 17. Pin; 18. First sealing ring; 19. Funnel adapter; 20. Heater; 21. Heat dissipation channel; 22. Baffle; 23. Sample boat; 24. Copper oxide wire; 25. Cooling water pipe. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0024] The technical solutions in the embodiments of the present utility model will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present utility model. Obviously, the described embodiments are only a part of the embodiments of the present utility model, rather than all the embodiments. All other embodiments obtained by those of ordinary skill in the art based on the embodiments of the present utility model without creative efforts shall fall within the protection scope of the present utility model.

[0025] As Figures 1 - 3 shown, a technical solution provided by the present utility model:

[0026] A highly sealed sample treatment device includes a large glass tube 1 and a baffle 22. A sample boat 23 is movably arranged inside the large glass tube 1. One end of the large glass tube 1 is provided with a first gland 2, and the other end of the large glass tube 1 is provided with a second gland 3. The other end of the first gland 2 is provided with an inlet connecting pipe 4, and the other end of the second gland 3 is provided with an outlet connecting pipe 5. Cooling water pipes 25 are annularly arranged outside the first gland 2 and the second gland 3. The two cooling water pipes 25 are respectively fixedly connected to the outer walls of the first gland 2 and the second gland 3. The two ends of the two cooling water pipes 25 are respectively provided with water inlets and outlets. A small glass tube 6 is arranged between the large glass tube 1 and the outlet connecting pipe 5. Copper oxide wires 24 are spirally wound around the outer wall of one end of the small glass tube 6 located inside the large glass tube 1. Copper oxide wires 24 are arranged outside one end of the small glass tube 6, which can play a catalytic role during the sample treatment process. A pressing mechanism is arranged between the small glass tube 6 and the outlet connecting pipe 5. The pressing mechanism includes an outlet pipe inner tube 7 and a pressing nut 8. The outlet pipe inner tube 7 is fixedly sleeved in the middle of the end of the outlet connecting pipe 5 far from the large glass tube 1. One end of the small glass tube 6 passes through the outlet pipe inner tube 7 and is located outside the outlet connecting pipe 5. The outlet pipe inner tube 7 is threadedly connected to the pressing nut 8 near the outside of the outlet connecting pipe 5. The pressing mechanism further includes a washer 9 and a second sealing ring 10. The washer 9 and the second sealing ring 10 are sequentially arranged between the outlet pipe inner tube 7 and the inner side of the pressing nut 8. One end of the washer 9 is close to the outlet pipe inner tube 7, and one end of the second sealing ring 10 is close to the pressing nut 8. A funnel adapter 19 is communicated with the bottom end in the middle of the outlet connecting pipe 5. Thread grooves are arranged on the outer wall of the funnel adapter 19. A baffle 22 is arranged on the top left side of the outlet connecting pipe 5 where the funnel adapter 19 is located. The baffle 22 is of a semi-circular structure or a hollow cylindrical structure. A heater 20 is arranged outside the upper and lower ends of the large glass tube 1. A heat dissipation channel 21 is arranged between the two heaters 20 and the first gland 2 and the second gland 3;

[0027] In this embodiment, when installing the second gland 3 and the outlet connecting pipe 5, it is necessary to first sleeved the small glass tube 6 in the outlet pipe inner tube 7, then set the second sealing ring 10 at the other end of the outlet pipe inner tube 7, set the washer 9 inside the pressing nut 8, and then threadedly sleeve the pressing nut 8 on the outer end of the outlet pipe inner tube 7. In this way, the small glass tube 6 can radially move inside the large glass tube 1 and is sealed by the washer 9 and the second sealing ring 10, which is convenient to adjust the radial position of the small glass tube 6 in the large glass tube 1 to adjust the position of the copper oxide wires 24 and the oxygen outlet position to achieve a better catalytic effect;

[0028] As Figure 1 shown, a baffle 22 is arranged on the top left side of the outlet connecting pipe 5 where the funnel adapter 19 is located. The baffle 22 does not block the gas from flowing out, but can prevent the flowing substances of the sample from flowing out. For example, grease flows out and blocks the outlet, resulting in sample loss or explosion of the large glass tube 1;

[0029] As Figure 1 shown, heaters 20 are provided at both the upper and lower ends of the large glass tube 1. The large glass tube 1 is heated by the heaters 20, and then the samples inside the large glass tube 1 are heated. Moreover, the heaters 20 are equipped with temperature control modules to control the temperature inside the large glass tube 1;

[0030] As Figure 1 shown, a cooling water pipe 25 is annularly arranged outside the first gland 2 and the second gland 3. When water flows through the cooling water pipe 25, the first gland 2 and the second gland 3 will be cooled. Since the boiling point of water is 100 degrees, the temperature of the first sealing ring 18 will not be too high. Because when the temperature of the first sealing ring 18 is too high, it is likely to melt or age. Therefore, through the cooling water pipe 25, it can be ensured that the temperature of the first sealing ring 18 will not be too high, thereby improving the service life of the first sealing ring 18.

[0031] As Figure 2 shown, a first clamping mechanism is provided on both sides of the inlet connecting pipe 4 and the first gland 2. The first clamping mechanism includes a first screw 11, a first clamping block 12 and a first wing nut 13. The first clamping blocks 12 are symmetrically arranged outside both sides of the inlet connecting pipe 4 and the first gland 2. The first screw 11 is movably installed between the two first clamping blocks 12. A first wing nut 13 is movably installed at one end of the first screw 11 close to the inlet connecting pipe 4. A second clamping mechanism is provided on both sides of the outlet connecting pipe 5 and the second gland 3. The second clamping mechanism includes a second screw 14, a second clamping block 15 and a second wing nut 16. The second clamping blocks 15 are symmetrically arranged outside both sides of the outlet connecting pipe 5 and the second gland 3. The second screw 14 is movably installed between the two second clamping blocks 15. A second wing nut 16 is movably installed at one end of the second screw 14 close to the outlet connecting pipe 5. Pins 17 are sleeved between the first clamping blocks 12 outside both sides of the first gland 2 and the first screw 11 and between the second clamping blocks 15 outside both sides of the second gland 3 and the second screw 14;

[0032] In this embodiment, one end of the first screw 11 close to the first gland 2 is fixed to the first clamping block 12 with a pin 17, and the other end is threadedly connected to the first wing nut 13. By turning the first wing nut 13, the two first clamping blocks 12 can be tightened, thus fixing the first gland 2 and the inlet connecting pipe 4. Since the inlet connecting pipe 4 and the outlet connecting pipe 5 are provided at both ends of the large glass tube 1, the situation of open fire explosion and unstable air flow can be avoided. And without using an interface glass stopper, there will be no situation of spraying due to sudden air pressure change, solving the problem of the frosted glass stopper spraying and hurting people. At the same time, since the inlet connecting pipe 4 and the outlet connecting pipe 5 are installed using the first screw 11, the second screw 14, the first wing nut 13, the first clamping block 12, the second clamping block 15 and the second wing nut 16, the problem of the glass stopper being stuck after thermal expansion and contraction is also avoided.

[0033] As Figure 2As shown, a first sealing ring 18 is provided between the gland 2 and the end of the inlet connecting pipe 4, and between the second gland 3 and the end of the outlet connecting pipe 5;

[0034] In this embodiment, when installing the gland 2 and the inlet connecting pipe 4, and the second gland 3 and the outlet connecting pipe 5, it is also necessary to provide a first sealing ring 18 between the gland 2 and the inlet connecting pipe 4, and between the second gland 3 and the outlet connecting pipe 5. After the gland 2 and the inlet connecting pipe 4, and the second gland 3 and the outlet connecting pipe 5 are clamped and installed, by providing the first sealing ring 18 at the connection, the airtightness problem can be effectively solved, no air leakage occurs, and stable recovery of the sample can be achieved.

[0035] Any of the above sample treatment devices with high airtightness is applied in the measurement of tritium and carbon-14 in biological, environmental, and soil samples.

[0036] Working principle: During installation, first clamp and fix the inlet connecting pipe 4 at one end of the large glass tube 1 between the first gland 2. Then clamp and fix the second gland 3 at the other end of the large glass tube 1 and the outlet connecting pipe 5. Since the structures at both ends are the same, the installation methods are the same. Here, only the installation method of one end is described for illustration. For example, when installing the first gland 2 and the inlet connecting pipe 4, place the inlet connecting pipe 4 against the outer side of the end of the first gland 2. Then, successively sleeve two first screws 11 into the first clamping blocks 12 on both sides. Among them, a pin 17 is used to fix the end of the first screw 11 close to the first gland 2 and the first clamping block 12, and the other end is threadedly connected to the first wing nut 13. By turning the first wing nut 13, the two first clamping blocks 12 can be tightened, thus fixing the first gland 2 and the inlet connecting pipe 4. Since the inlet connecting pipe 4 and the outlet connecting pipe 5 are provided at both ends of the large glass tube 1, the situation of open fire explosion and unstable air flow can be prevented. And without using an interface glass stopper, there will be no situation of spraying due to sudden air pressure change, solving the problem of the frosted glass stopper spraying and hurting people. At the same time, since the first screw 11, the second screw 14, the first wing nut 13, the first clamping block 12, the second clamping block 15 and the second wing nut 16 are used to install the inlet connecting pipe 4 and the outlet connecting pipe 5, the problem of the glass stopper being stuck after thermal expansion and contraction is also avoided; when installing the second gland 3 and the outlet connecting pipe 5, first sleeve the small glass tube 6 into the middle tube 7 of the outlet pipe. Then, set a second sealing ring 10 at the other end of the middle tube 7 of the outlet pipe, set a washer 9 inside the compression nut 8, and then threadedly sleeve the compression nut 8 onto the outer end of the middle tube 7 of the outlet pipe. In this way, the small glass tube 6 can move radially inside the large glass tube 1 and is sealed by the washer 9 and the second sealing ring 10, which is convenient for adjusting the radial position of the small glass tube 6 in the large glass tube 1 to adjust the position of the copper oxide wire 24 and the oxygen outlet position to achieve a better catalytic effect; secondly, when installing the first gland 2 and the inlet connecting pipe 4 and the second gland 3 and the outlet connecting pipe 5, a first sealing ring 18 also needs to be set between the first gland 2 and the inlet connecting pipe 4 and between the second gland 3 and the outlet connecting pipe 5. In this way, after the first gland 2 and the inlet connecting pipe 4 and the second gland 3 and the outlet connecting pipe 5 are clamped and installed, by setting the first sealing ring 18 at the connection, the airtightness problem can be effectively solved without air leakage, ensuring a stable recovery rate of the sample.

[0037] The above shows and describes the basic principle, main features and advantages of the present invention. Those skilled in the art should understand that the present invention is not limited by the above embodiments. The above embodiments and the descriptions in the specification are only preferred examples of the present invention and are not used to limit the present invention. Without departing from the spirit and scope of the present invention, the present invention will have various changes and improvements, and these changes and improvements all fall within the scope of the present invention claimed. The scope of protection claimed by the present invention is defined by the appended claims and their equivalents.

Claims

1. A sample processing device with high sealing performance, characterized in that: including a large glass tube (1) and a baffle (22), a sample boat (23) is movably arranged inside the large glass tube (1), a first gland (2) is arranged at one end of the large glass tube (1), and a second gland (3) is arranged at the other end of the large glass tube (1); the other end of the first gland (2) is provided with an inlet connecting pipe (4), the other end of the second gland (3) is provided with an outlet connecting pipe (5), a cooling water pipe (25) is annularly arranged outside the first gland (2) and the second gland (3), the two cooling water pipes (25) are respectively fixedly connected to the outer walls of the first gland (2) and the second gland (3), and water inlet and outlet ports are respectively arranged at both ends of the two cooling water pipes (25); a small glass tube (6) is arranged between the large glass tube (1) and the outlet connecting pipe (5), an oxidized copper wire (24) is spirally wound around the outer wall of one end of the small glass tube (6) located inside the large glass tube (1), and a pressing mechanism is arranged between the small glass tube (6) and the outlet connecting pipe (5); clamping mechanisms I are arranged on both sides of the inlet connecting pipe (4) and the first gland (2), and clamping mechanisms II are arranged on both sides of the outlet connecting pipe (5) and the second gland (3); a heater (20), the heater (20) is arranged outside the upper and lower ends of the large glass tube (1), and a heat dissipation channel (21) is arranged between the two heaters (20) and the first gland (2) and the second gland (3).

2. The high-sealing sample processing device according to claim 1, wherein: the pressing mechanism includes an outlet pipe inner tube (7) and a pressing nut (8), the outlet pipe inner tube (7) is fixedly sleeved on the middle of the end of the outlet connecting pipe (5) far from the large glass tube (1), one end of the small glass tube (6) passes through the outlet pipe inner tube (7) and is located outside the outlet connecting pipe (5), the outside of the outlet pipe inner tube (7) close to the outlet connecting pipe (5) is threadedly connected with the pressing nut (8), the pressing mechanism further includes a washer (9) and a second sealing ring (10), the washer (9) and the second sealing ring (10) are sequentially arranged between the inner sides of the outlet pipe inner tube (7) and the pressing nut (8), one end of the washer (9) is close to the outlet pipe inner tube (7), and one end of the second sealing ring (10) is close to the pressing nut (8).

3. The high-sealing sample treatment device according to claim 1, wherein: the clamping mechanism I includes a first screw (11), a first clamping block (12) and a first wing nut (13), the first clamping blocks (12) are symmetrically arranged outside both sides of the inlet connecting pipe (4) and the first gland (2), the first screw (11) is movably installed between the two first clamping blocks (12) on both sides, the first wing nut (13) is movably installed at one end of the first screw (11) close to the inlet connecting pipe (4), the clamping mechanism II includes a second screw (14), a second clamping block (15) and a second wing nut (16), the second clamping blocks (15) are symmetrically arranged outside both sides of the outlet connecting pipe (5) and the second gland (3), the second screw (14) is movably installed between the two second clamping blocks (15) on both sides, and the second wing nut (16) is movably installed at one end of the second screw (14) close to the outlet connecting pipe (5).

4. The high-sealing sample treatment device according to claim 3, characterized in that: A pin (17) is sleeved between the clamping block one (12) on the outer sides of both sides of the gland one (2) and the screw one (11), and between the clamping block two (15) on the outer sides of both sides of the gland two (3) and the screw two (14).

5. A highly-sealed sample processing device according to claim 1, characterized in that: A sealing ring one (18) is arranged between the gland one (2) and the end of the inlet connecting pipe (4), and between the gland two (3) and the end of the outlet connecting pipe (5).

6. The high-sealing sample processing device according to claim 1, characterized in that: A funnel adapter pipe (19) is communicated with the bottom end in the middle of the outlet connecting pipe (5). A thread groove is arranged on the outer wall of the funnel adapter pipe (19). A baffle (22) is arranged on the left side at the top of the outlet connecting pipe (5) where the funnel adapter pipe (19) is located. The baffle (22) is of a semi-circular structure or a hollow cylindrical structure.

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