Decomposition method and apparatus based on basis material combination

Patent metadata

Field	Value
Publication number	US-11400407-B2
Application number	US-201816232050-A
Country	US
Kind code	B2
Filing date	Dec 26, 2018
Priority date	Dec 26, 2017
Publication date	Aug 2, 2022
Grant date	Aug 2, 2022

Abstract

The present disclosure relates to a gas purification apparatus and a trace substance detection device. The gas purification apparatus includes a first purification component, a second purification component and a switching component, wherein the switching component can be switched between a first state and a second state, the first purification component and a component to be purified form a gas purification loop in the first state, and the second purification component can provide a regeneration gas for the first purification component in the second state, so that water vapor and impurities in the first purification component are discharged to outside. In the gas purification apparatus, the filtered air is used as the regeneration gas to prevent secondary pollution in a recycling process of the purificant; furthermore, by means of the state switching function of the switching component, the mutual interference between the two working states of purification and regeneration can be prevented, and all the above advantages can improve the reliability of the recycling of the purificant, thereby optimizing the performance and the service life of the gas purification apparatus.

First claim

What is claimed is:

1. A gas purification apparatus, comprising:
a shell, provided with a gas tube interface;
a first purification component;
a second purification component, located at the outside of the shell and detachable from the shell; and
a switching component configured to switch between a first state and a second state;
in the first state, the first purification component and a component to be purified form a gas purification loop; and
in the second state, the second purification component is installed on the gas tube interface to communicate with the first purification component and provides a regeneration gas for the first purification component, so that water vapor and impurities in the first purification component are discharged to outside.

2. The gas purification apparatus according to claim 1 , wherein the switching component comprises a switching valve.

3. The gas purification apparatus according to claim 2 , wherein the switching component comprises a first switching valve and a second switching valve; when both of the first switching valve and the second switching valve are in the first state, the first purification component and the component to be purified form the gas purification loop, and when both of the first switching valve and the second switching valve are in the second state, the second purification component provides the regeneration gas for the first purification component through the second switching valve, so as to discharge the water vapor and impurities regenerated by the first purification component to outside.

4. The gas purification apparatus according to claim 3 , wherein when the second switching valve is in the second state, the second purification component communicates with the second switching valve from the outside of the shell through the gas tube interface.

5. The gas purification apparatus according to claim 1 , wherein the first purification component comprises a first purification container, a first purificant and a heater; the first purificant is provided in the first purification container, and the heater is arranged at the outside of the first purification container for heating when the first purificant needs to be regenerated.

6. The gas purification apparatus according to claim 5 , further comprising a shell provided with a power supply interface, and the heater is connected with the power supply interface, and the heater for being powered by an external power supply when the first purificant needs to be regenerated.

7. The gas purification apparatus according to claim 2 , further comprising a shell provided with a power supply interface, the switching valve is a solenoid valve, the solenoid valve is connected with the power supply interface, the solenoid valve is configured to be powered by an external power supply, the first state is a power-off state of the solenoid valve, and the second state is a power-on state of the solenoid valve.

8. The gas purification apparatus according to claim 5 , wherein the first purification component further comprises a heat preservation layer coated at the outside of the first purification container.

9. The gas purification apparatus according to claim 5 , wherein a temperature and humidity sensor is arranged in the first purification container for monitoring the temperature and humidity of the first purificant.

10. The gas purification apparatus according to claim 1 , further comprising a shell, a battery and a charging component, wherein a charging interface is provided on the shell, the battery is provided in the shell and is connected with the charging interface, and the charging interface for charging the battery when connected with the charging component.

11. The gas purification apparatus according to claim 3 , wherein the first switching valve and the second switching valve are both two-position three-way solenoid valves, the two-position correspond to the first state and the second state respectively.

12. The gas purification apparatus according to claim 3 , further comprising a pump provided on a gas path between the second switching valve and the first purification component.

13. The gas purification apparatus according to claim 1 , wherein the component to be purified comprises an ion migration tube.

14. A trace substance detection device, comprising the gas purification apparatus according to claim 1 .

15. The trace substance detection device according to claim 14 , wherein the trace substance detection device comprises an ion mobility spectrometer or a gas chromatograph.

Assignees

• Nuctech Co Ltd
• Univ Tsinghua

Inventors

• Zhang Qingjun
• Li Yuanjing
• Chen Zhiqiang
• Zhao Ziran
• Liu Yinong
• Liu Yaohong
• Yan Lili
• Li Ge
• Ma Qiufeng
• Bai Nan

Classifications

• G01N27/622 Primary

  Ion mobility spectrometry · CPC title

• B01D53/261

  by adsorption · CPC title

• B01D46/56 Primary

  with multiple filtering elements, characterised by their mutual disposition (B01D46/12 takes precedence) · CPC title

• B01D2258/06

  Polluted air · CPC title

• B01D2259/402

  using two beds · CPC title