Portable efficient headspace sample bottle gas replacement device

Abstract

The utility model provides a portable efficient headspace sample bottle gas replacement device, which comprises a shunting busbar and a sample bottle, one side of the shunting busbar is communicated with a gas inlet hose, the shunting busbar is connected with a plurality of sub-joints, the sub-joints are connected with a gas inlet needle through sub-hoses, the gas inlet needle penetrates through a bottle cap of the sample bottle and extends into the sample bottle, and the sample bottle is connected with the sub-joints through the sub-hoses. An exhaust needle for exhausting gas in the sample bottle is arranged on a bottle cap of the sample bottle. The gas replacement device is used for solving one or more of the problems of single function, low purging efficiency and high cost of the existing gas replacement device, does not need a power supply to supply power, is simple and convenient to operate, is suitable for quickly purging a sample bottle on site, improves the working efficiency and effectively stores a sample. Meanwhile, the purging interfaces can be expanded to increase the busbar, and each purging interface is provided with a gas switch control valve, so that the flow rate can be adjusted or the working interface can be opened and closed at any time according to the quantity of samples.

Description

Technical Field

[0001] The utility model relates to a gas replacement device, in particular to a portable high-efficiency headspace sample bottle gas replacement device. Background Art

[0002] After being collected, precious samples such as deep-sea water and sediment pore water collected on site need to be sealed and stored in an inert gas atmosphere to prevent the oxidizable components in the seawater from coming into contact with the air and reacting, which would affect subsequent indoor tests. Since the samples collected on site have various forms, including gas (methane), liquid (seawater or pore water), and solid (sediment), the sample bottles used have different volumes and diameters. The existing gas replacement device has a single function and requires a special device and is equipped with brackets of various sample bottle specifications. It also needs to be powered on indoors for operation, and the purge efficiency is low, which takes up a lot of time and space and is costly. Therefore, it is necessary to design a sample bottle gas replacement device that is easy to carry and has high replacement efficiency. Utility Model Content

[0003] The technical problem to be solved by the utility model is to provide a portable and efficient headspace sample bottle gas replacement device in view of the deficiencies of the above-mentioned prior art. The device has a simple and reasonable structural design, strong practicality, simple operation, high purging efficiency, and can fully meet the requirements of on-site rapid gas replacement.

[0004] In order to solve the above technical problems, the technical solution adopted by the utility model is: a portable and efficient head space sample bottle gas replacement device, characterized in that it includes a shunt manifold and a sample bottle, one side of the shunt manifold is connected to an air intake hose, a plurality of sub-connectors are connected to the shunt manifold, the sub-connectors are connected to an air intake needle through a sub-hoses, the air intake needle passes through the bottle cap of the sample bottle and extends to the interior of the sample bottle, and the bottle cap of the sample bottle is provided with an exhaust needle for exhausting the gas in the sample bottle.

[0005] Preferably, a main channel for gas flow is opened in the branch bus, and the multiple sub-connectors are connected to the main channel. One end of the air intake hose is connected to the inert gas storage tank, and the other end of the air intake hose is connected to the main channel through the main connector. The air intake hose is provided with a flow valve for adjusting the gas flow.

[0006] Preferably, a switch valve is provided on the sub-connector.

[0007] Preferably, the air intake hose and the sub-hose are both PU hoses, and the sub-hose is movably and detachably connected to the sub-connector.

[0008] Compared with the prior art, the utility model has the following advantages:

[0009] 1. The utility model has a simple and reasonable structure, is easy to use, has a good use effect, and has a high purge and replacement efficiency.

[0010] 2. The utility model can adjust the blowing direction as needed through the hose connection, and can be freely changed in the forward, reverse and horizontal directions.

[0011] 3. The utility model can simultaneously complete the purging and replacement of multiple sample bottles. The sub-hose can be detachably connected and can be replaced with different-sized air inlet needles according to the size of the sample bottle, and can be used for sample bottles of different prices. Each sample bottle corresponds to a switch, which can flexibly control the opening and closing and the flow rate.

[0012] The utility model is further described in detail below with reference to the accompanying drawings and embodiments. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] Figure 1 It is a structural schematic diagram of the utility model.

[0014] Figure 2 It is a schematic diagram of the connection structure of the sample bottle and the sub-hose in the utility model.

[0015] Description of reference numerals:

[0016] 1—dividing manifold; 2—sample bottle; 3—air inlet hose;

[0017] 4—sub-connector; 5—sub-hose; 6—intake needle;

[0018] 7—exhaust needle; 8—flow valve; 9—on-off valve;

[0019] 10—Main connector. DETAILED DESCRIPTION

[0020] like Figure 1 and Figure 2 As shown, the utility model includes a shunt manifold 1 and a sample bottle 2, one side of the shunt manifold 1 is connected to an air intake hose 3, a plurality of sub-connectors 4 are connected to the shunt manifold 1, the sub-connectors 4 are connected to an air intake needle 6 via a sub-hose 5, the air intake needle 6 passes through the bottle cap of the sample bottle 2 and extends to the interior of the sample bottle 2, and the bottle cap of the sample bottle 2 is provided with an exhaust needle 7 for exhausting the gas in the sample bottle 2.

[0021] In this embodiment, a main channel for gas flow is opened in the branch bus 1, and the multiple sub-connectors 4 are connected to the main channel. One end of the air intake hose 3 is connected to the inert gas storage tank, and the other end of the air intake hose 3 is connected to the main channel through the main connector 10. The air intake hose 3 is provided with a flow valve 8 for adjusting the gas flow.

[0022] In this embodiment, a switch valve 9 is provided on the sub-connector 4 .

[0023] In this embodiment, the air intake hose 3 and the sub-hose 5 are both PU hoses, and the sub-hose 5 is movably and detachably connected to the sub-connector 4 .

[0024] When in use, select air inlet needles 6 of different sizes according to the sample bottle 2 containing the sample and connect them to the sub-connector 4, insert the air inlet needle 6 into the sample bottle 2, expose the exhaust needle 7, open the flow valve 8 to adjust to a suitable flow, open the switch valve 9 corresponding to the sample bottle 2, and the high-pressure inert gas such as nitrogen in the inert gas storage tank enters the sample bottle 2 to squeeze out the original gas in the sample bottle 2 through the exhaust needle 7 to complete the gas replacement.

[0025] The above is only a preferred embodiment of the utility model, and does not limit the utility model in any way. Any simple modification, change and equivalent change made to the above embodiment according to the essence of the utility model technology still falls within the protection scope of the technical solution of the utility model.

Claims

1. A portable and efficient headspace sample bottle gas replacement device, characterized in that: The invention comprises a flow divider (1) and a sample bottle (2), one side of the flow divider (1) is connected to an air intake hose (3), a plurality of sub-connectors (4) are connected to the flow divider (1), the sub-connectors (4) are connected to an air intake needle (6) via a sub-hose (5), the air intake needle (6) passes through the bottle cap of the sample bottle (2) and extends into the interior of the sample bottle (2), and the bottle cap of the sample bottle (2) is provided with an exhaust needle (7) for exhausting the gas in the sample bottle (2).

2. A portable and efficient headspace sample bottle gas replacement device according to claim 1, characterized in that: The flow distribution bus (1) is provided with a main channel for gas flow, and the plurality of sub-connectors (4) are all connected to the main channel. One end of the air intake hose (3) is connected to an inert gas storage tank, and the other end of the air intake hose (3) is connected to the main channel via a main connector (10). The air intake hose (3) is provided with a flow valve (8) for adjusting the gas flow.

3. A portable and efficient headspace sample bottle gas replacement device according to claim 1, characterized in that: The sub-connector (4) is provided with a switch valve (9).

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