Cold trap water removal device

Abstract

The utility model relates to a cold trap water removal device which comprises a refrigeration box shell, a drying pipe assembly for drying introduced carrier gas and a refrigeration seat for installing the drying pipe assembly, the refrigeration seat is arranged in the refrigeration box shell, and heat preservation cotton for isolating outside air is arranged between the refrigeration seat and the refrigeration box shell. The drying pipe assembly comprises at least one drying pipe, a refrigerating assembly capable of condensing water vapor in carrier gas is arranged on one side of the refrigerating base, and a carrier gas inlet and a carrier gas outlet are formed in the top end of the drying pipe. A condensate water outlet is formed in the bottom of the drying pipe. The device can quickly, fully and efficiently remove water vapor in carrier gas and carbon dioxide, does not need any drying agent, and is good in drying effect.

Description

Technical Field

[0001] The utility model relates to the technical field of laboratory devices, in particular to a cold trap water removal device Background Art

[0002] C14 is a radioactive isotope of carbon element and is widely used as a tracer. The detection of Helicobacter pylori is its most representative use. In the quantitative detection process of C14, it needs to be converted into carbon dioxide, and then the carbon dioxide is absorbed for quantification. The process of converting C14 into carbon dioxide is the combustion method. The entire carrier gas and carbon dioxide gas will carry a large amount of heat, resulting in the expansion of the gas volume. At the same time, the carrier gas after the reaction will contain a large amount of water vapor, which affects the test result of the gas flow rate and thus affects the measurement result of the total carbon Summary of the Invention

[0003] In order to solve the problems of the above-mentioned prior art, the utility model provides a cold trap water removal device, which can effectively remove the water vapor in the carrier gas and fully ensure the dryness of the carrier gas

[0004] The technical solution adopted is as follows

[0005] A cold trap water removal device, characterized in that: it includes a refrigeration box housing, a drying tube assembly for drying the introduced carrier gas, and a refrigeration seat for installing the drying tube assembly. The refrigeration seat is arranged in the refrigeration box housing, and there is a heat-insulating cotton for isolating external air between the refrigeration seat and the refrigeration box housing. The drying tube assembly includes at least one drying tube. One side of the refrigeration seat is provided with a refrigeration component capable of condensing the water vapor in the carrier gas. The top of the drying tube is provided with an air inlet and an air outlet for the carrier gas; the bottom of the drying tube is provided with a condensation drainage port

[0006] Further, the refrigeration seat is provided with a groove for inserting the drying tube

[0007] Further, a temperature sensor and an installation hole for installing the temperature sensor are arranged in the refrigeration seat

[0008] Further, the drying tube includes a first drying tube and a second drying tube

[0009] Further, the air inlet includes a first air inlet arranged on the first drying tube and a second air inlet arranged on the second drying tube; the air outlet includes a first air outlet arranged on the first drying tube and a second air outlet arranged on the second drying tube

[0010] Further, a connecting tube is arranged between the first air outlet and the second air inlet

[0011] Furthermore, the refrigeration assembly includes a semiconductor refrigeration plate, a water cooling head arranged on a side of the semiconductor refrigeration plate away from the refrigeration seat, and a water cooling head pressure cover.

[0012] Furthermore, a plurality of heat-insulating columns are provided at the connection between the refrigeration seat and the thermal insulation cotton.

[0013] Furthermore, the thermal insulation cotton includes a first thermal insulation cotton arranged around the refrigeration seat and a second thermal insulation cotton arranged on the top of the refrigeration seat, and the first and second thermal insulation cottons constitute a cavity for accommodating the refrigeration seat.

[0014] Furthermore, the water cooling head is provided with a liquid inlet and a liquid outlet.

[0015] Compared with the prior art, the beneficial effects produced by the utility model are:

[0016] The utility model provides a cold trap device, including a drying tube assembly for drying, the drying tube assembly is arranged in a refrigeration seat, the drying tube assembly is cooled by a refrigeration assembly on the refrigeration seat, and a heat preservation cotton is arranged outside the refrigeration seat to isolate the external air and prevent heat from entering, so as to achieve a good constant temperature effect. After the carrier gas passes into the drying tube, the water vapor in the carrier gas can be condensed into water and discharged after cooling, so as to achieve the purpose of drying. The refrigeration assembly includes a semiconductor refrigeration sheet for refrigeration and constant temperature, and also includes a water cooling head, and the water cooling head passes a coolant to cool the semiconductor refrigeration sheet, taking away the heat of the semiconductor refrigeration sheet, so that the constant temperature effect is better and the service life is extended.

[0017] Preferably, the utility model is provided with two interconnected drying tubes, and the carrier gas generated in the process of converting C14 into carbon dioxide undergoes secondary water removal, which has a higher water removal rate and better drying effect, and can effectively remove water vapor in the carrier gas to avoid affecting the measurement result of total carbon. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 It is a disassembly diagram of the utility model;

[0019] Figure 2 for Figure 1 Enlarged view of point a;

[0020] Figure 3 is a cross-sectional view of the drying tube;

[0021] Among them, the refrigeration box housing 1, the drying tube assembly 2, the refrigeration seat 3, the refrigeration assembly 4, the semiconductor refrigeration chip 401, the water-cooled head 402, the liquid inlet 4021, the liquid outlet 4022, the water-cooled head gland 403, the heat insulation cotton 5, the first heat insulation cotton 501, the second heat insulation cotton 502, the drying tube 6, the first drying tube 601, the second drying tube 602, the air inlet 7, the first air inlet 701, the second air inlet 702, the air outlet 8, the first air outlet 801, the second air outlet 802, the condensation drain port 9, the connecting pipe 10, the heat insulation column 11, the groove 12, the temperature sensor 13, and the mounting hole 14. Detailed implementation mode

[0022] The following further describes the present utility model in conjunction with specific embodiments.

[0023] This embodiment is used for drying the carrier gas after C14 combustion and is not a limitation to the present utility model.

[0024] Reference Figure 1 、 2 Referring to FIGS. 1, 2, and 3, a cold trap water removal device includes a refrigeration box housing 1, a drying tube assembly 2 for drying the introduced carrier gas, and a refrigeration seat 3 for mounting the drying tube assembly 2. The refrigeration seat 3 is disposed inside the refrigeration box housing 1, and a heat insulation cotton 5 for isolating external air is provided between the refrigeration seat 3 and the refrigeration box housing 1. The drying tube assembly 2 includes at least one drying tube 6. A refrigeration assembly 4 capable of condensing water vapor in the carrier gas is provided on one side of the refrigeration seat 3 corresponding to the side wall of the drying tube 6. An air inlet 7 and an air outlet 8 for the carrier gas are provided at the top end of the drying tube 6, and a condensation drain port 9 is provided at the bottom of the drying tube 6.

[0025] The heat insulation cotton 5 includes a first heat insulation cotton 501 disposed around the refrigeration seat and a second heat insulation cotton 502 disposed on the top of the refrigeration seat. The first and second heat insulation cottons form a cavity for accommodating the refrigeration seat. Heat insulation columns 11 are provided at the connection between the refrigeration seat 3 and the heat insulation cotton 5. Preferably, the number of the heat insulation columns 11 is 4, which can further isolate heat and make the constant temperature effect of the refrigeration seat 3 better.

[0026] A groove 12 for inserting the drying tube 6 is provided on the refrigeration seat 3. The drying tube 6 is inserted into the groove 12. The second heat insulation cotton 502 is provided at the upper end of the refrigeration seat 3 where the groove 12 is located. The remaining side walls of the refrigeration seat 3 except the top are wrapped by the first heat insulation cotton 501. The heat insulation cotton 5 is provided to isolate external air, prevent external heat from entering, and at the same time avoid water vapor in the external air from entering and condensing into water.

[0027] The described refrigeration component 4 includes a thermoelectric cooler 401, a water-cooled head 402 disposed on the side of the thermoelectric cooler away from the refrigeration seat, and a water-cooled head gland 403. One side of the thermoelectric cooler 401 is closely attached to the refrigeration seat 3 to cool the refrigeration seat 3 and keep the refrigeration seat 3 at a constant temperature (preferably 4°C in this embodiment). At the same time, the water-cooled head passes coolant to cool the other side of the thermoelectric cooler. The water-cooled head gland 403 presses the water-cooled head 402 to ensure that the water-cooled head 402 is completely attached to the thermoelectric cooler 401.

[0028] C14 is converted to carbon dioxide by combustion, making the entire carrier gas contain a large amount of heat and generating a large amount of water vapor. At this time, the thermoelectric cooler needs to provide a large amount of refrigeration capacity to cool the water vapor, so the thermoelectric cooler will generate a large amount of heat. At this time, the water-cooled head passes coolant, and the heat of the thermoelectric cooler 401 can be quickly and completely removed through liquid cooling.

[0029] A temperature sensor 13 and an installation hole 14 for installing the temperature sensor 13 are provided in the refrigeration seat 3. The temperature sensor 13 is used to measure the temperature inside the refrigeration seat 3. When the temperature of the refrigeration seat 3 reaches the constant temperature, the thermoelectric cooler 401 stops working.

[0030] Such as Figure 3 , after the carrier gas enters from the inlet of the drying tube 6, it contacts the wall of the drying tube and condenses. The generated condensed water converges at the bottom of the drying tube. Since the temperature inside the refrigeration seat 3 is cooled to the constant temperature of 4°C, the temperature of the condensed water is also cooled to 4°C. The subsequent carrier gas will pass through the condensed water at the bottom of the drying tube. The carrier gas is directly cooled and the water vapor inside the carrier gas will condense into condensed water. In this way, the condensed water gradually increases and is discharged from the condensate drain port 9 after reaching a certain level.

[0031] Preferably, the inlet 7 includes a first inlet 701 provided on the first drying tube 601 and a second inlet 702 provided on the second drying tube 602; the outlet 8 includes a first outlet 801 provided on the first drying tube 601 and a second outlet 802 provided on the second drying tube 602. A connecting pipe 10 is provided between the first outlet 801 and the second inlet 702.

[0032] The carrier gas enters the first drying tube 601 from the first inlet 701, is dried and then discharged from the first outlet 801, and then enters the second drying tube 602 from the second inlet 702 through the connecting pipe 10. After secondary drying, it is discharged from the second outlet 802. After the carrier gas undergoes secondary drying, the water removal effect is better. Using a two-stage water removal tank can greatly improve the water removal efficiency and ensure the dryness of the carrier gas.

[0033] The above are only alternative embodiments of the present utility model, and do not limit the patent scope of the present utility model accordingly. Any equivalent structural transformation made by using the content of the specification and drawings of the present utility model under the inventive concept of the present utility model, or any direct / indirect application in other related technical fields is included in the patent protection scope of the present utility model.

Claims

1. A cold trap water removal device, characterized in that: It includes a refrigeration box housing (1), a drying tube assembly (2) for drying the introduced carrier gas, and a refrigeration seat (3) for installing the drying tube assembly (2). The refrigeration seat (3) is arranged inside the refrigeration box housing (1). There is a heat insulation cotton (5) for isolating external air between the refrigeration seat (3) and the refrigeration box housing (1). The drying tube assembly (2) includes at least one drying tube (6). There is a refrigeration component (4) on one side of the refrigeration seat (3) that can condense water vapor in the carrier gas. The top of the drying tube (6) is provided with an air inlet (7) and an air outlet (8) for the carrier gas; the bottom of the drying tube (6) is provided with a condensate drainage port (9).

2. The cold trap water removal device according to claim 1, characterized in that: The refrigeration seat (3) is provided with a groove (12) for the drying tube (6) to be inserted into.

3. The cold trap water removal device according to claim 1, characterized in that: The refrigeration seat (3) is provided with a temperature sensor (13) and an installation hole (14) for installing the temperature sensor (13).

4. The cold trap water removal device according to claim 1, characterized in that: The drying tube (6) includes a first drying tube (601) and a second drying tube (602).

5. The cold trap water removal device according to claim 4, characterized in that: The air inlet (7) includes a first air inlet (701) provided on the first drying tube (601) and a second air inlet (702) provided on the second drying tube (602); the air outlet (8) includes a first air outlet (801) provided on the first drying tube (601) and a second air outlet (802) provided on the second drying tube (602).

6. The cold trap water removal device according to claim 5, characterized in that: A connecting tube (10) is provided between the first air outlet (801) and the second air inlet (702).

7. The cold trap water removal device according to claim 1, characterized in that: The refrigeration component (4) includes a thermoelectric cooler (401), a water-cooled head (402) arranged on the side of the thermoelectric cooler away from the refrigeration seat (3), and a water-cooled head gland (403).

8. The cold trap water removal device according to claim 1, wherein: Several heat insulation columns (11) are provided at the connection between the refrigeration seat and the heat insulation cotton.

9. The cold trap water removal device according to claim 1, characterized in that: The heat insulation cotton (5) includes a first heat insulation cotton (501) arranged around the refrigeration seat and a second heat insulation cotton (502) arranged on the top of the refrigeration seat. The first and second heat insulation cottons form a cavity for accommodating the refrigeration seat.

10. The cold trap water removal device according to claim 7, characterized in that: The water-cooled head (402) is provided with a liquid inlet (4021) and a liquid outlet (4022).

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