Modularized porous gas stable isotope standard substance preparing and subpackaging device

Abstract

The utility model provides a modularized multi-hole-site gas stable isotope standard substance preparing and sub-packaging device which comprises gas supply equipment, a gas box, a needle head filling device and a sub-packaging container, the gas box comprises a main gas passage unit and a plurality of branch passage units, the main gas passage unit is respectively connected with the gas supply equipment and the branch passage units, each branch passage unit is provided with a plurality of hole sites, and one hole site is connected with one needle filling device; one end of the main airway unit is connected with a vacuum pump; the split charging container comprises a container body, a sealing plug arranged at a bottle opening of the container body and a sealing cover wrapping the upper portion of the container body, and a groove hole is formed in the middle of the sealing cover to expose part of the sealing plug. During filling, a split charging container is inserted into the needle head filling device; after the filling is finished, the split charging container is pulled out from the needle head filling device, and the gas is sealed and stored in the split charging container, so that the uniform mixing and configuration of the isotope standard gas with specific concentration can be quickly realized, the equipment operation is simple, the process is safer, and the cost is lower.

Description

Technical Field

[0001] The utility model belongs to the technical field of gas isotope packaging, and in particular relates to a modular multi-porous gas stable isotope standard preparation and packaging device. Background Art

[0002] Gas stable isotope standards, also known as gas stable isotope reference materials and isotope standard gases, are widely used in disciplines such as environmental science, chemistry, geology, medicine, and nuclear engineering. They are commonly used in related instrument calibration, quality control, capability verification, technical arbitration, and atmospheric environment monitoring in gas research.

[0003] In laboratory research, it is often necessary to mix different isotope standard gases to carry out various detection tests. Small amounts of isotope standard substances are needed, so the isotope standard substances need to be packaged to facilitate experimental use.

[0004] There are two main methods for packaging isotope reference materials, both of which have certain disadvantages:

[0005] First, the gas in large steel cylinders is packaged into small high-pressure metal gas cylinders. The storage capacity after packaging is large. When taking gas for use, the high-pressure metal gas cylinders need to be connected to pipelines and pressure reducing valves. The gas taking process is cumbersome and there is a lot of gas waste. The high-pressure metal gas cylinders themselves have disadvantages such as large weight, high pressure, easy to rust, and expensive. The packaging cost is high, and they are mainly used in industrial production, and are not suitable for small-capacity isotope standards in the laboratory.

[0006] Second, the gas in the steel cylinder is packaged into glass bottles. Compared with the first method, although the storage capacity of the packaged gas is reduced, the packaging and filling process requires the gas to be frozen with liquid nitrogen first and then the glass bottle mouth is melted and sealed at high temperature. The packaging process is cumbersome. When using, the glass bottle needs to be destroyed to extract the gas in the glass storage tube. It can only be used once, which is not economical.

[0007] In order to better adapt to the mixing and packaging of laboratory isotope standard gases, a gas stable isotope standard preparation and packaging device is urgently needed to solve the above problems. Utility Model Content

[0008] To address the shortcomings of the prior art, the present invention proposes a modular multi-porous gas stable isotope standard preparation and packaging device, which has a simple structure, convenient operation, flexible use, and is economical and practical. The solution is as follows:

[0009] A modular multi-porous gas stable isotope standard preparation and packaging device comprises a gas supply device, a gas box, a needle filler and a packaging container; the gas supply device is connected to the gas box, the gas box is connected to the needle filler, and the needle filler fills the packaging container with gas;

[0010] The gas box includes a main airway unit and multiple branch passage units. The main airway unit is connected to the air supply device, and the main airway unit is connected to the branch passage unit. Valves for switching are provided between the air supply device and the main airway unit, and between the main airway unit and the branch passage unit. Each branch passage unit is provided with multiple holes, and each hole is connected to one of the needle fillers. One end of the main airway unit is also connected to a vacuum pump.

[0011] The sub-packaging container comprises a container body, a sealing plug arranged at the bottle mouth of the container body, and a sealing cover wrapped around the upper part of the container body, wherein a slot is provided in the middle of the sealing cover to expose a portion of the sealing plug;

[0012] During filling, the sub-packaging container is inserted into the needle filler; after filling, the sub-packaging container is removed from the needle filler, and the gas is sealed and stored in the sub-packaging container.

[0013] Furthermore, the container body is configured as a glass bottle body, the diameter of the mouth of the glass bottle is smaller than the diameter of the body of the glass bottle; the sealing plug includes a butyl rubber plug; and the sealing cover includes an aluminum alloy pressure cover.

[0014] Furthermore, the butyl rubber stopper has a thickness of 10 mm.

[0015] Furthermore, a pump or a fan for accelerating the flow of gas is also provided in the main airway unit (11).

[0016] Furthermore, the gas supply equipment includes one or more gas cylinders, and each gas cylinder is connected to a gas quality meter and a pressure relief valve through a pipeline.

[0017] Furthermore, the main air duct unit is configured to be box-shaped, and the main air duct unit is respectively connected to the air supply equipment and the vacuum pump. The main air duct unit is provided with several buffer connection channels adjacent to the end of the branch passage unit for connecting the corresponding branch passage units, and the valve between the main air duct unit and the branch passage unit is provided on the buffer connection channel.

[0018] Furthermore, the branch passage unit is configured to be in the shape of a long box, and the plurality of holes are located on the top surface of the branch passage unit and are evenly opened along the length direction of the branch passage unit.

[0019] Furthermore, the needle filler includes an integrally connected connecting portion, a needle valve and a needle, the needle valve is configured as a stop valve, the connecting portion is threadedly connected to the hole, and a sealant is provided at the threaded connection.

[0020] Furthermore, the needle has a diameter of 0.8 mm and a length of 50 mm.

[0021] Furthermore, an air pressure display element is provided on the branch passage unit.

[0022] Compared with the prior art, the advantages of the present invention are as follows:

[0023] The utility model can quickly achieve the mixing and configuration of isotope standard gas of specific concentration by arranging gas supply equipment, gas box, needle filler and packaging container. The equipment is easy to operate, the process is safer and the cost is lower. It can configure gas of specific concentration and perform batch packaging operation, ensuring that the batch-packaged gas standards are uniform and stable, and can be stored for a long time and easily taken out.

[0024] The utility model can subpackage isotope standard gas into dedicated glass gas cylinders in batches according to demand through modular subpackaging of the gas box, which can achieve a simple and fast subpackaging process and uniform gas properties. BRIEF DESCRIPTION OF THE DRAWINGS

[0025] Figure 1 This is a schematic diagram of the overall structure of the subpackaging device according to an embodiment of the present utility model;

[0026] Figure 2 This is a top view of the subpackaging device according to an embodiment of the present invention (with the upper cover hidden);

[0027] Figure 3 yes Figure 2 Left view of;

[0028] Figure 4 This is a schematic structural diagram of the main airway unit according to an embodiment of the present utility model;

[0029] Figure 5 This is a schematic diagram of the structure of the needle filler installed on the branch passage unit of the embodiment of the utility model;

[0030] Figure 6 This is a schematic structural diagram of a packaging container according to an embodiment of the present utility model;

[0031] In the above figures: 1. Gas box; 11. Main airway unit; 12. Branch passage unit; 13. Buffer connection channel; 14. Valve; 15. Vacuum pump; 16. Fan; 17. Pressure gauge; 18. Upper cover; 19. Box body; 2. Needle filler; 21. Needle; 22. Needle valve; 23. Connecting part; 3. Packaging container; 31. Glass bottle body; 32. Butyl rubber stopper; 33. Aluminum alloy pressure cap. DETAILED DESCRIPTION

[0032] To facilitate those skilled in the art to understand the present invention, specific implementations of the present invention are described below with reference to the accompanying drawings.

[0033] like Figures 1 to 6 As shown, the present invention provides a modular multi-porous gas stable isotope standard preparation and packaging device, comprising a gas supply device, a gas box 1, a needle filler 2, and a packaging container 3. The gas supply device is connected to the gas box 1, the gas box 1 is connected to the needle filler 2, and the needle filler 2 fills the packaging container 3 with gas.

[0034] The gas box 1 includes an upper cover 18 and a housing 19. A main airway unit 11 and multiple branch passage units 12 are disposed within the housing 19. The main airway unit 11 and multiple branch passage units 12 are modular in structure, and each branch passage unit 12 has the same structure. The main airway unit 11 is connected to the gas supply equipment, which in turn is connected to the branch passage units 12. Valves 14 are provided between the gas supply equipment and the main airway unit 11, and between the main airway unit 11 and the branch passage units 12 for switching. Each branch passage unit 12 has multiple holes, each of which can be connected to a needle filler 2. A valve 14 is provided between the needle filler 2 and the hole for switching. A vacuum pump 15 is also connected to one end of the main airway unit 11.

[0035] In this embodiment, the subpackaging container 3 is configured as a glass gas storage bottle, including a glass bottle body 31, a sealing plug arranged at the bottle mouth of the glass bottle body 31, and a sealing cover wrapped around the upper part of the glass bottle body 31, and a slot is opened in the middle position of the sealing cover to expose part of the sealing plug.

[0036] During filling, the sub-packaging container 3 is inserted into the needle bottom of the needle filler 2; after filling, the sub-packaging container 3 is removed from the needle filler 2, and the gas is sealed and stored in the glass bottle body 31.

[0037] The glass gas cylinders of the utility model are suitable for various sizes, including 10 ml, 25 ml, 50 ml, and 100 ml. Made of quartz glass, the cylinder features a thickened neck ring and a butyl rubber stopper 32 and an aluminum alloy gland 33 for sealing. This ensures leak-proof insertion and removal of the needle 21, providing a strong seal. The needle 21 can also be used to rapidly evacuate the cylinder and dispense the prepared standard gas into the glass cylinder, capable of meeting pressures up to 3 atmospheres. Experimental testing has shown that the isotope standard gas stored in this glass cylinder exhibits no significant changes in gas properties over a three-year period, allowing for repeated refilling and reuse.

[0038] like Figure 4 As shown, the main airway unit 11 is configured to be box-shaped, and the main airway unit 11 is respectively connected to the air supply equipment and the vacuum pump 15. Several buffer connection channels 13 are set at the end of the main airway unit 11 adjacent to the branch passage unit 12 for connecting the corresponding branch passage units 12. The valve 14 between the main airway unit 11 and the branch passage unit 12 is set on the buffer connection channel 13.

[0039] In order to speed up gas mixing, a pump or blower 16 is also installed in the main airway unit 11. Pump or blower 16 can be driven by an electric motor or other power sources. In this embodiment, the blower 16 is selected for use and the motor drives the blower 16 to rotate.

[0040] like Figure 5 As shown, the branch passage unit 12 is configured to be in the shape of a long box, and a plurality of holes are evenly opened along the length direction of the branch passage unit 12 and are located on the top surface of the branch passage unit 12 .

[0041] like Figure 6 As shown, the needle filler 2 includes an integrally connected connecting portion 23, a needle valve 22, and a needle 21. The needle valve 22 is a stop valve. The connecting portion 23 is threadedly connected to the hole, and sealant is provided at the threaded connection to achieve sealing of the connection.

[0042] More specifically, the butyl rubber stopper 32 has a thickness of 10 mm; the needle 21 of the needle filler 2 has a diameter of 0.8 mm and a length of 50 mm.

[0043] The gas supply equipment includes one or more gas cylinders, each of which stores high-pressure gas. Each gas cylinder is connected to a gas mass meter and a pressure relief valve via a pipeline. In this embodiment, the multiple gas cylinders are connected to the main gas channel unit 11 in batches. The specific operation is detailed in the working process.

[0044] In order to detect the air pressure in the branch passage unit 12, an air pressure display element is provided on the branch passage unit 12, and a pressure gauge is selected in this embodiment.

[0045] Working process:

[0046] First, select a glass gas cylinder to store the target gas, insert the cylinder mouth downward into the needle filler 2, open the needle valve 22 to connect it with the branch passage unit 12, as shown in FIG. Figure 1 The figure shows a glass gas cylinder. The specific number of glass gas cylinders is selected based on actual needs. Open all valves 14 connecting to the interior of the gas box 1, close all valves 14 connecting to the exterior of the gas box 1, turn on the vacuum pump 15, and evacuate all parts of the gas box 1 and the glass gas cylinders to be stored in the target gas. Close the valves 14 between each branch passage unit 12 and the main gas channel unit 11, close all needle valves 22, and turn off the vacuum pump 15 and the valves 14 connected to it.

[0047] Secondly, connect the gas cylinder, open the valve 14 between the branch passage unit 12 and the main gas channel unit 11, fill the gas box 1 with gas, observe the gas mass meter reading, and close the valve 14 connected to the gas cylinder after filling.

[0048] If two or more gases are configured, they must be filled sequentially into different branch passage units 12. The main airway unit 11 must be evacuated between each operation. For example, if gases A and B are configured in a 1:1 ratio, first connect gas cylinder A, fill gas A into branch passage a, close valve 14, and evacuate main airway unit 11. Then, connect gas cylinder B, fill gas B into branch passage b, close valve 14, and evacuate main airway unit 11.

[0049] The valve 14 between the branch passage a, the branch passage b and the main airway unit 11 is opened to connect the main airway unit 11 with the branch passage a and the branch passage b.

[0050] Then, the fan 16 in the main air channel unit 11 is turned on and the fan 16 is run for a period of time, such as 30 minutes, so that the gas in the box 19 is fully mixed, and then the fan 16 is turned off.

[0051] Finally, open the needle valve 22 and dispense the configured gas into the glass gas cylinder. After filling, close the needle valve 22. After all the gas is filled, close all valves 14 and remove the dispensed glass gas cylinder.

[0052] The above-described embodiments of the present invention do not limit the scope of protection of the present invention. Any modifications, equivalent replacements, and improvements made within the spirit and principles of the present invention shall be included in the scope of protection of the claims of the present invention.

Claims

1. A modular multi-porous gas stable isotope standard preparation and packaging device, characterized in that: It comprises a gas supply device, a gas box (1), a needle filler (2) and a sub-packaging container (3); the gas supply device is connected to the gas box (1), the gas box (1) is connected to the needle filler (2), and the needle filler (2) fills the sub-packaging container (3) with gas; The gas box (1) includes a main airway unit (11) and a plurality of branch passage units (12), wherein the main airway unit (11) is connected to the air supply device, and the main airway unit (11) is connected to the branch passage unit (12), and valves (14) for switching are provided between the air supply device and the main airway unit (11), and between the main airway unit (11) and the branch passage unit (12), and each branch passage unit (12) is provided with a plurality of holes, and one hole is connected to one needle filler (2); one end of the main airway unit (11) is also connected to a vacuum pump (15); The packaging container (3) comprises a container body, a sealing plug arranged at the bottle mouth of the container body, and a sealing cover wrapped around the upper part of the container body, wherein a slot is provided in the middle of the sealing cover to expose a portion of the sealing plug; During filling, the sub-packaging container (3) is inserted into the needle filler (2); after filling, the sub-packaging container (3) is pulled out from the needle filler (2), and the gas is sealed and stored in the sub-packaging container (3).

2. The modular multi-porous gas stable isotope standard preparation and packaging device according to claim 1, characterized in that: The container body is configured as a glass bottle body (31), the diameter of the bottle mouth of the glass bottle being smaller than the diameter of the bottle body of the glass bottle; the sealing plug comprises a butyl rubber plug (32); and the sealing cover comprises an aluminum alloy pressure cover (33).

3. The modular multi-porous gas stable isotope standard preparation and packaging device according to claim 2, characterized in that: The thickness of the butyl rubber stopper (32) is 10 mm.

4. The modular multi-porous gas stable isotope standard preparation and packaging device according to claim 1, characterized in that: The main airway unit (11) is also provided with a pump or a fan for accelerating the flow of gas.

5. The modular multi-porous gas stable isotope standard preparation and packaging device according to claim 1, characterized in that: The gas supply equipment includes one or more gas cylinders, and each gas cylinder is connected to a gas quality meter and a pressure relief installation valve through a pipeline.

6. The modular multi-porous gas stable isotope standard preparation and packaging device according to claim 1, characterized in that: The main airway unit (11) is configured to be box-shaped. The main airway unit (11) is connected to the air supply device and the vacuum pump (15) respectively. A plurality of buffer connection channels (13) are provided at the end of the main airway unit (11) adjacent to the branch passage unit (12) for connecting to the corresponding branch passage units (12). A valve (14) between the main airway unit (11) and the branch passage unit (12) is provided on the buffer connection channel (13).

7. The modular multi-porous gas stable isotope standard preparation and packaging device according to claim 6, characterized in that: The branch passage unit (12) is configured as a long box, and the plurality of holes are located on the top surface of the branch passage unit (12) and are evenly opened along the length direction of the branch passage unit (12).

8. The modular multi-porous gas stable isotope standard preparation and packaging device according to claim 1, characterized in that: The needle filler (2) comprises an integrally connected connecting portion (23), a needle valve (22), and a needle (21); the needle valve (22) is configured as a stop valve; the connecting portion (23) is threadedly connected to the hole, and a sealant is provided at the threaded connection.

9. The modular multi-porous gas stable isotope standard preparation and packaging device according to claim 8, characterized in that: The needle (21) has a diameter of 0.8 mm and a length of 50 mm.

10. The modular multi-porous gas stable isotope standard preparation and packaging device according to claim 1, characterized in that: An air pressure display element is provided on the branch passage unit (12).

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