Greenhouse gas sampling device with cold trap

Abstract

The utility model relates to the technical field of greenhouse gas sampling, and discloses a greenhouse gas sampling device with a cold trap, which comprises a cold trap main body, a trap cover is mounted at the top of the cold trap main body, a motor is fixedly connected to the middle of the top wall of the trap cover, and the output end of the motor penetrates through the trap cover and is fixedly connected with a cross plate. A knob is mounted on the left side of the top of the trap cover, a gear is fixedly connected to the bottom of the knob, a circular groove is formed in the bottom of the trap cover, connecting rods are slidably connected to the left side and the right side in the circular groove, and fluted discs are fixedly connected to the bottoms of the connecting rods. According to the gas dehumidification device, the motor drives the cross plate to rotate, internal gas is fully mixed, the gear drives the fluted disc to rotate, then the baffle is moved, the problem that in the prior art, condensate water is not thoroughly collected due to the fact that part of gas cannot make contact with the baffle is effectively solved, and gas dehumidification is more convenient.

Description

Technical Field

[0001] The utility model relates to the technical field of greenhouse gas sampling, in particular to a greenhouse gas sampling device with a cold trap. Background Art

[0002] The cold trap gas sampling device is a device used to collect and analyze gas samples. It uses cold trap technology to capture and concentrate specific components in the gas. It is widely used in environmental monitoring, industrial production and scientific research to collect and analyze trace pollutants, volatile organic compounds and greenhouse gases in the air.

[0003] After searching, the Chinese patent publication number is: CN211753746U, which discloses a dehumidification cold trap, including a cold trap and a collection container arranged on the air flow channel. The cold trap is provided with a liquid discharge outlet. The temperature range of the cold trap is 0-4°C. The inlet of the collection container is connected to the discharge outlet of the cold trap. The discharge outlet of the cold trap is located at the bottom or side wall of the cold trap. The air inlet of the cold trap is provided with an air inlet valve. The collection container is connected to a drain pipe. The drain pipe is provided with a drain valve. The drain valve is connected to a control mechanism to control its opening and closing. With this technical solution, condensation dehumidification is carried out through the cold trap, and then the collection container and the control mechanism are combined to achieve automatic drainage. No manual operation is required, which is easier to use. However, since the baffle in the device is in a fixed state, after the gas collides with the baffle, the condensed water flows down the baffle. Since some gas cannot contact the baffle, the collection of condensed water is not thorough enough and cannot meet the needs of actual use. Utility Model Content

[0004] In order to make up for the above shortcomings, the utility model provides a greenhouse gas sampling device with a cold trap, aiming to improve the problem in the prior art that some gases cannot contact the baffle, resulting in incomplete collection of condensed water.

[0005] In order to achieve the above-mentioned purpose, the utility model adopts the following technical scheme: a greenhouse gas sampling device with a cold trap, comprising a cold trap main body, a trap cover is installed on the top of the cold trap main body, a motor is fixedly connected to the middle of the top wall of the trap cover, the output end of the motor passes through the trap cover and is fixedly connected to a cross plate, a knob is installed on the top left side of the trap cover, the bottom of the knob is fixedly connected to a gear, a circular groove is opened at the bottom of the trap cover, the left and right sides of the inside of the circular groove are slidably connected with a connecting rod, the bottom of the connecting rod is fixedly connected to a gear disk, the gear disk and the gear are meshed and connected, and baffles are fixedly connected around the bottom of the gear disk, the bottom of the cold trap main body is connected to a connecting pipe, the bottom of the connecting pipe is connected to a water storage barrel, the middle and upper part of the outer wall of the cold trap main body is fixedly connected to a bracket, and the middle and lower parts of the left and right sides of the outer wall of the bracket are installed with a clamping mechanism, and the clamping mechanism is used to clamp the water storage barrel.

[0006] Through the above technical solution: the cross plate is driven by the motor to rotate, so that the gas inside the equipment can be fully mixed, and the gear transmission is used to drive the toothed disc to rotate accordingly, thereby realizing the movement of the baffle. This design effectively solves the problem of some gases in the existing technology that cannot fully contact with the baffle, resulting in incomplete collection of condensed water, and the process of dehumidifying the gas becomes more convenient and efficient.

[0007] As a further description of the above technical solution:

[0008] The clamping mechanism includes a bolt, which is threadedly connected to the middle and lower part of the outer wall of the bracket. The other end of the bolt is rotatably connected to a connecting plate. The upper and lower ends of the connecting plate are fixedly connected to a clamping plate. The middle part of the outer wall of the clamping plate is fixedly connected to a positioning rod. The positioning rod is passed through the middle and lower part of the outer wall of the bracket. A supporting plate is provided at the bottom of the water storage barrel, and the bottom of the supporting plate is fixedly connected to a spring.

[0009] Through the above technical solution: by using a support plate to support and hold the water storage barrel, the left and right movement function of the bolt is effectively utilized to realize the inward movement of the splint, so that the splint can clamp the water storage barrel, thereby ensuring its stability. The water storage barrel collects condensed water for a long time and will not tip over due to unstable center of gravity, thereby avoiding the risk of liquid leakage, improving the safety of the water storage barrel, and ensuring that the storage of liquid is more reliable and lasting.

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

[0011] The bottom of the bracket is fixedly connected to a supporting platform, and the four corners of the bottom of the supporting platform are fixedly connected to bottom pads.

[0012] Through the above technical solution: the bracket is supported by the base and the bottom pad is used to prevent slipping.

[0013] As a further description of the above technical solution:

[0014] A stopper is fixedly connected to the middle portion of the left side of the inner wall of the connecting pipe, and a disc is rotatably connected to the middle portion of the right side of the inner wall of the connecting pipe.

[0015] Through the above technical solution, gas leakage is avoided by the disc 18 and the stopper 17 .

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

[0017] The top right side of the outer wall of the cold trap body is connected to an air inlet, and the top outer wall of the air inlet is installed with a valve 1. The top left side of the outer wall of the cold trap body is connected to an air outlet, and the top outer wall of the air outlet is installed with a valve 2.

[0018] Through the above technical solution: valve one and valve two are used to control the inflow and outflow speed of gas.

[0019] As a further description of the above technical solution:

[0020] The tops of the front and rear sides of the outer wall of the cold trap body are fixedly connected with lock buckles, and the middle parts of the front and rear sides of the outer wall of the trap cover are fixedly connected with lock rings, and the lock buckles and the lock rings are engaged.

[0021] Through the above technical solution, the locking ring and the lock buckle are engaged to prevent gas leakage.

[0022] As a further description of the above technical solution:

[0023] The middle parts of the front and rear sides of the outer wall of the cold trap body are threadedly connected with a heat insulation board, and the four corners of the outer wall of the heat insulation board are threadedly connected with fixing pins.

[0024] Through the above technical solution, the heat insulation board 25 can reduce the impact of the external environment temperature on the cold trap.

[0025] As a further description of the above technical solution:

[0026] A threaded coil is provided at the bottom of the connecting pipe, and a drain valve is connected to the bottom right of the outer wall of the water storage barrel.

[0027] Through the above technical solution: the outflow rate of the condensed water is controlled by using the discharge valve.

[0028] The utility model has the following beneficial effects:

[0029] 1. In the utility model, the motor drives the cross plate to rotate, so that the internal gas is fully mixed, and the gear drives the toothed disc to rotate, thereby realizing the movement of the baffle, which effectively solves the problem of incomplete collection of condensed water caused by some gases unable to contact the baffle in the prior art, and makes the dehumidification of the gas more convenient.

[0030] 2. In the present invention, a support plate is used to support the water storage barrel, and the left and right movement of the bolt causes the clamping plate to move inward to clamp the water storage barrel, effectively preventing the water storage barrel from tipping over and causing liquid leakage after collecting condensed water for a long time. BRIEF DESCRIPTION OF THE DRAWINGS

[0031] Figure 1 This is a three-dimensional diagram of a greenhouse gas sampling device with a cold trap proposed by the present invention;

[0032] Figure 2 This is a front view of a greenhouse gas sampling device with a cold trap proposed by the present invention;

[0033] Figure 3 This is an exploded view of the local structure of a greenhouse gas sampling device with a cold trap proposed in the present invention;

[0034] Figure 4 This is a partial structural exploded diagram of a greenhouse gas sampling device with a cold trap proposed in the present invention;

[0035] Figure 5 This is an exploded view of the structure of the clamping mechanism of a greenhouse gas sampling device with a cold trap proposed in the present invention.

[0036] Legend:

[0037] 1. Cold trap body; 2. Clamping mechanism; 201. Bolt; 202. Connecting plate; 203. Clamping plate; 204. Positioning rod; 205. Support plate; 206. Spring; 3. Trap cover; 4. Motor; 5. Cross plate; 6. Knob; 7. Gear; 8. Circular groove; 9. Connecting rod; 10. Toothed disc; 11. Baffle; 12. Connecting pipe; 13. Water storage barrel; 14. Bracket; 15. Support platform; 16. Bottom pad; 17. Block; 18. Disc; 19. Air inlet; 20. Valve 1; 21. Air outlet; 22. Valve 2; 23. Lock buckle; 24. Locking ring; 25. Heat insulation board; 26. Fixing pin; 27. Threaded coil; 28. Drain valve. DETAILED DESCRIPTION

[0038] 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 embodiments described 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 making creative efforts are within the scope of protection of the present invention.

[0039] Reference Figure 1 、 Figure 2 and Figure 4The utility model provides an embodiment of a greenhouse gas sampling device with a cold trap, comprising a cold trap body 1, a trap cover 3 installed on the top of the cold trap body 1, a motor 4 fixedly connected to the middle of the top wall of the trap cover 3, the output end of the motor 4 passes through the trap cover 3 and is fixedly connected to a cross plate 5, which is driven by the motor 4 to rotate, a knob 6 is installed on the top left side of the trap cover 3, a gear 7 is fixedly connected to the bottom of the knob 6, a circular groove 8 is provided at the bottom of the trap cover 3, and a connecting rod 9 is slidably connected to the left and right sides of the inner part of the circular groove 8, a toothed disc 10 is fixedly connected to the bottom of the connecting rod 9, and the toothed disc 10 is meshed with the gear 7. The gear 7 and the toothed disc 10 are in a meshing connection relationship. Under the action of the gear 7, the toothed disc 10 will Under the limit of the circular groove 8, the connecting rod 9 is connected to move in a circular motion. The bottom of the toothed disc 10 is fixedly connected with a baffle 11 on all sides. The bottom of the cold trap main body 1 is connected with a connecting pipe 12, and the bottom of the connecting pipe 12 is connected with a water storage bucket 13. The cold trap main body 1 and the water storage bucket 13 are connected through the connecting pipe 12. A bracket 14 is fixedly connected to the middle and upper part of the outer wall of the cold trap main body 1. A clamping mechanism 2 is installed on the middle and lower parts of the left and right sides of the outer wall of the bracket 14. The clamping mechanism 2 is used to clamp the water storage bucket 13, and the clamping mechanism 2 is fixed by the bracket 14; the bottom of the bracket 14 is fixedly connected to a base 15, and the four corners of the bottom of the base 15 are fixedly connected to a bottom pad 16, which effectively prevents the base 15 from sliding on the ground;

[0040] Specifically, in the process of gas sampling, first start the cold trap body 1 to ensure that it is in working condition, start the motor 4, and after starting, the motor 4 will drive the cross plate 5 to rotate through its output end, so that the gas inside the cold trap body 1 is fully mixed, ensuring that the gas can have a more comprehensive contact with the baffle 11, then turn the knob 6, at this time the gear 7 starts to rotate, and under the limiting action of the circular groove 8, the connecting rod 9 will drive the toothed disc 10 to perform a circular motion, and the baffle 11 connected to the bottom of the toothed disc 10 will also rotate accordingly, thereby having a more comprehensive contact with the gas, achieving a better condensation effect, and ensuring that the collection of gas samples is more accurate and efficient; the bracket 14 is supported by the base 15 to achieve stability of the device, and the installation of the bottom pad 16 can effectively increase the friction between the base 15 and the ground, and effectively prevent slipping.

[0041] Reference Figure 1 、 Figure 3 and Figure 5The clamping mechanism 2 includes a bolt 201, which is threadedly connected to the middle and lower part of the outer wall of the bracket 14, and the other end of the bolt 201 is rotatably connected to a connecting plate 202. The upper and lower ends of the connecting plate 202 are fixedly connected to a clamping plate 203. The bolt 201 drives the connecting plate 202 and the clamping plate 203 to move, clamping the water storage barrel 13. The middle part of the outer wall of the clamping plate 203 is fixedly connected to a positioning rod 204, and the positioning rod 204 is penetrated by the middle and lower part of the outer wall of the bracket 14. A supporting plate 205 is provided at the bottom of the water storage barrel 13, and the bottom of the supporting plate 205 is fixedly connected to a spring 206. The action of the spring 206 and the supporting plate 205 enables the water storage barrel 13 to adjust its height by itself; the middle part of the left side of the inner wall of the connecting pipe 12 is fixedly connected to a stopper 17, and the middle part of the right side of the inner wall of the connecting pipe 12 is rotatably connected to a disc 18, which can prevent gas leakage through the disc 18 and the stopper 17;

[0042] Specifically, when clamping the water bucket 13, the water bucket 13 is placed on the surface of the support plate 205. Under the elastic force of the spring 206, the support plate 205 will automatically adjust to a suitable position according to the weight of the water bucket 13 to ensure that the water bucket 13 can be stably supported. By turning the bolt 201, the rotation of the bolt 201 will drive the connecting plate 202, and then the clamping plate 203 will start to move inward. The inward movement of the clamping plate 203 is to effectively clamp the water bucket 13 to ensure that it is stable during operation. No sliding or tipping will occur. The setting of the positioning rod 204 enables the clamping plate 203 to stop accurately at the appropriate position when clamping the water barrel 13, thereby ensuring the accuracy and reliability of the clamping process. The water barrel 13 can be kept stable during operation through the clamping mechanism 2, avoiding potential risks caused by shaking or sliding; the cooperation of the block 17 and the disc 18 can effectively prevent the gas caused by excessive air pressure from entering the water barrel 13, thereby improving the accuracy of gas sampling. The model of the motor 4 is YS8024.

[0043] Reference Figure 1 and Figure 3 The top right side of the outer wall of the cold trap body 1 is connected to an air inlet 19, and a valve 20 is installed on the top of the outer wall of the air inlet 19. The top left side of the outer wall of the cold trap body 1 is connected to an air outlet 21, and a valve 22 is installed on the top of the outer wall of the air outlet 21. The air inlet 19 and the air outlet 21 are used to collect and discharge gas; the middle part of the front and rear sides of the outer wall of the cold trap body 1 are threadedly connected to a heat insulation board 25, and the four corners of the outer wall of the heat insulation board 25 are threadedly connected to fixing pins 26. Under the action of the fixing pins 26, the position of the heat insulation board 25 is fixed;

[0044] Specifically, the gas can enter and flow out through the air inlet 19 and the air outlet 21, and the gas flow rate can be controlled by valve 1 20 and valve 2 22; the insulation board 25 can effectively prevent the external ambient temperature from affecting the cold trap body 1, and the insulation board 25 can be fixed and replaced by the fixing pin 26.

[0045] Reference Figure 1 and Figure 4 The top of the front and rear sides of the outer wall of the cold trap body 1 are fixedly connected with lock buckles 23, and the middle of the front and rear sides of the outer wall of the well cover 3 are fixedly connected with lock rings 24. The lock buckle 23 and the lock ring 24 are engaged, and the cold trap body 1 is sealed by the engagement of the lock ring 24 and the lock buckle 23; a threaded coil 27 is provided at the bottom of the connecting pipe 12, and a drain valve 28 is connected to the bottom right side of the outer wall of the water storage barrel 13, and the drain valve 28 is used to control the flow rate of the condensed water;

[0046] Specifically, the installation of the lock buckle 23 and the lock ring 24 enables the cold trap body 1 and the trap cover 3 to be effectively sealed to prevent gas leakage; the threaded coil 27 is used to connect the connecting pipe 12 and the water storage barrel 13, and the discharge valve 28 is used to control the outflow rate of the condensed water.

[0047] Working principle: When sampling the gas, first start the cold trap body 1, then start the motor 4. Under the action of the motor 4, its output end will drive the cross plate 5 to rotate, thereby fully mixing the gas inside the cold trap body 1, so that the gas and the baffle 11 are in full contact. Turn the knob 6, and the gear 7 starts to rotate. Under the limit of the circular groove 8, the connecting rod 9 drives the toothed disc 10 to perform a circular motion, so that the baffle 11 connected to the bottom of the toothed disc 10 rotates, thereby fully contacting with the gas and achieving a better condensation effect.

[0048] When clamping the water bucket 13, first place the water bucket 13 on the top of the supporting plate 205. Under the action of the spring 206, it will automatically adjust to a suitable height according to the weight of the water bucket 13. Turn the bolt 201. Under the action of the bolt 201, the connecting plate 202 drives the clamping plate 203 to move inward to clamp the water bucket 13. The positioning rod 204 effectively provides a limit for the movement of the clamping plate 203, and the water bucket 13 is stabilized by the clamping mechanism 2.

[0049] Finally, it should be noted that the above is only a preferred embodiment of the present invention and is not intended to limit the present invention. Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art can still modify the technical solutions described in the aforementioned embodiments or make equivalent replacements for some of the technical features therein. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principles of the present invention should be included in the scope of protection of the present invention.

Claims

1. A greenhouse gas sampling device with a cold trap, comprising a cold trap body (1), characterized in that: A well cover (3) is installed on the top of the cold trap body (1), a motor (4) is fixedly connected to the middle of the top wall of the well cover (3), the output end of the motor (4) passes through the well cover (3) and is fixedly connected to a cross plate (5), a knob (6) is installed on the left side of the top of the well cover (3), a gear (7) is fixedly connected to the bottom of the knob (6), a circular groove (8) is opened at the bottom of the well cover (3), and a connecting rod (9) is slidably connected to the left and right sides of the inside of the circular groove (8), and the bottom of the connecting rod (9) is fixedly connected to the gear (7). A toothed disc (10) is connected, the toothed disc (10) and the gear (7) are meshed and connected, baffles (11) are fixedly connected to the four sides of the bottom of the toothed disc (10), the bottom of the cold trap body (1) is connected to a connecting pipe (12), the bottom of the connecting pipe (12) is connected to a water storage barrel (13), a bracket (14) is fixedly connected to the middle and upper part of the outer wall of the cold trap body (1), and a clamping mechanism (2) is installed on the middle and lower parts of the left and right sides of the outer wall of the bracket (14), and the clamping mechanism (2) is used to clamp the water storage barrel (13).

2. A greenhouse gas sampling device with a cold trap according to claim 1, characterized in that: The clamping mechanism (2) comprises a bolt (201), the bolt (201) being threadedly connected to the middle and lower portion of the outer wall of the bracket (14), the other end of the bolt (201) being rotatably connected to a connecting plate (202), the upper and lower ends of the connecting plate (202) being fixedly connected to a clamping plate (203), the middle portion of the outer wall of the clamping plate (203) being fixedly connected to a positioning rod (204), the positioning rod (204) being passed through the middle and lower portion of the outer wall of the bracket (14), the bottom of the water storage barrel (13) being provided with a supporting plate (205), the bottom of the supporting plate (205) being fixedly connected to a spring (206).

3. The greenhouse gas sampling device with a cold trap according to claim 2, characterized in that: The bottom of the bracket (14) is fixedly connected to a support platform (15), and the four corners of the bottom of the support platform (15) are fixedly connected to bottom pads (16).

4. The greenhouse gas sampling device with a cold trap according to claim 1, characterized in that: A stopper (17) is fixedly connected to the middle portion of the left side of the inner wall of the connecting tube (12), and a disc (18) is rotatably connected to the middle portion of the right side of the inner wall of the connecting tube (12).

5. The greenhouse gas sampling device with a cold trap according to claim 1, characterized in that: The top right side of the outer wall of the cold trap body (1) is connected to an air inlet (19), and the top outer wall of the air inlet (19) is installed with a valve 1 (20). The top left side of the outer wall of the cold trap body (1) is connected to an air outlet (21), and the top outer wall of the air outlet (21) is installed with a valve 2 (22).

6. The greenhouse gas sampling device with a cold trap according to claim 1, characterized in that: The tops of the front and rear sides of the outer wall of the cold trap body (1) are fixedly connected with lock buckles (23), and the middle parts of the front and rear sides of the outer wall of the trap cover (3) are fixedly connected with lock rings (24), and the lock buckles (23) and lock rings (24) are engaged.

7. The greenhouse gas sampling device with a cold trap according to claim 1, characterized in that: Heat insulation plates (25) are threadedly connected to the middle portions of the front and rear sides of the outer wall of the cold trap body (1), and fixing pins (26) are threadedly connected to the four corners of the outer wall of the heat insulation plate (25).

8. The greenhouse gas sampling device with a cold trap according to claim 1, characterized in that: A threaded coil (27) is provided at the bottom of the connecting pipe (12), and a drain valve (28) is connected to the bottom right of the outer wall of the water storage barrel (13).

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