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Headspace bottle gas replacement purging device and method

A technology of gas replacement and headspace bottle, which is applied in the direction of measuring devices, instruments, scientific instruments, etc., can solve the problems of low purging efficiency, high cost, single function, etc., achieve high purging efficiency, convenient operation, and reduce land occupation area effect

Active Publication Date: 2021-12-17
北京锆年领航科技有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0006] In view of the above analysis, the present invention aims to provide a headspace bottle gas replacement purging device and method to solve one or more of the problems of existing gas replacement devices with single function, low purging efficiency and high cost By

Method used

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  • Headspace bottle gas replacement purging device and method
  • Headspace bottle gas replacement purging device and method
  • Headspace bottle gas replacement purging device and method

Examples

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Effect test

Embodiment 1

[0076] A specific embodiment of the present invention discloses a headspace bottle gas replacement purging device, such as figure 1 to Figure 4 shown, including:

[0077] At least two workbenches, a plurality of workbenches are scattered and stacked vertically, and a plurality of joint assemblies 3 are arranged on the workbench, and the joint assembly 3 has an air inlet end and an air outlet end;

[0078] Air supply pipeline, one end of the air supply pipeline is connected to the intake end of the joint assembly 3, and the other end is connected to the gas source;

[0079] The first air needle 8, the needle seat of the first air needle 8 is connected to the outlet end of the joint assembly 3, the acupuncture end of the first air needle 8 is inserted into a sample bottle, and the first air needle 8 is used as an air inlet needle;

[0080] The second air needle 9, the acupuncture end of the second air needle 9 is inserted into the sample bottle, the needle seat end of the se...

Embodiment 2

[0130] Another specific embodiment of the present invention discloses a headspace bottle gas replacement and purging device, which is different from the scheme of turning the worktable over to realize the inversion of the joint assembly 3 in Embodiment 1. The workbench of this embodiment does not need to be turned upside down. Simply turning the joint assembly 3 upside down can realize switching between the upright and inverted purging functions of the device, which is convenient, quick, time-consuming, and reduces operating intensity.

[0131] In one of the optional embodiments, the joint assembly 3 is detachably installed on the workbench. When the joint assembly 3 needs to be inverted, the entire joint assembly 3 is removed from the workbench, and then the joint assembly 3 is installed upside down. Just right on the workbench.

[0132] Exemplarily, the joint assembly 3 is detachably installed in the installation hole on the workbench. When the joint assembly 3 needs to be i...

Embodiment 3

[0140] At present, there is no universal purging device for liquid samples. The nitrogen purging instrument on the market has a small number of sample bottles that can be purged at one time, and the connector of the existing nitrogen purging instrument requires a specially customized gas needle to connect, which is universal. The performance is poor, the cost is high, and the operation is very cumbersome, and it is not easy to replace; in addition, the specially customized needle is thicker, which causes a large wound to the rubber pad of the sample bottle cap, and is prone to air leakage.

[0141] Based on this, another specific embodiment of the present invention discloses a headspace bottle gas replacement purging device, the joint assembly 3 used includes a first end joint 3-1 for connecting the first gas needle 8 and a Connect the second end connector 3-2 of the air supply pipeline; the first end connector 3-1 is threadedly connected with the second end connector 3-2.

[...

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Abstract

The invention discloses a headspace bottle gas replacement purging device and method, which belong to the technical field of analysis and test instruments, and solve the problems of single function, low purging efficiency and high cost of a gas replacement device in the prior art. The headspace bottle gas replacement purging device comprises at least two workbenches, an air supply pipeline, a first gas needle and a second gas needle, wherein a plurality of connector assemblies are arranged on the workbenches, and each connector assembly is provided with an air inlet end and an air outlet end; one end of the air supply pipeline is connected with the air inlet end of the connector assembly, and the other end of the air supply pipeline is connected with an air source; a needle base of the first gas needle is connected with the air outlet end of the connector assembly, and the needling end of the first gas needle is inserted into a sample bottle; and the needling end of the second gas needle is inserted into the sample bottle, and the needle seat end of the second air needle is communicated with the atmosphere. The device has two functions of upright purging and inverted purging, and by arranging the multiple workbenches, the test efficiency is greatly improved, and the cost is reduced.

Description

technical field [0001] The invention relates to the technical field of analytical testing instruments, in particular to a headspace bottle gas replacement purging device and method. Background technique [0002] Headspace-gas chromatography is widely used in the continuous flow on-line testing of various gases. Since the air contains more or less gases with multiple components, the headspace sample bottle needs to be filled with an inert gas (nitrogen, argon or Helium, etc.) for gas replacement of the closed headspace bottle or aeration and purging of the liquid sample to remove the residual gas dissolved in the liquid and the air in the headspace. [0003] For example, when using a multi-purpose online sample preparation system for carbon and oxygen isotope analysis of carbonate samples, firstly put the carbonate powder samples into a 12ml headspace sample bottle, and screw on the bottle cap, since the powder sample is added to the sample bottle , so the headspace vial ne...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G01N30/02G01N30/16
CPCG01N30/02G01N30/16
Inventor 范鑫镕王文宇马云龙
Owner 北京锆年领航科技有限公司