CN103515182B - Being used alternatingly and renovation process of a kind of ion mobility spectrometry drying tube - Google Patents
Being used alternatingly and renovation process of a kind of ion mobility spectrometry drying tube Download PDFInfo
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- 238000001035 drying Methods 0.000 title claims abstract description 119
- 238000001871 ion mobility spectroscopy Methods 0.000 title claims abstract description 13
- 238000000034 method Methods 0.000 title claims abstract description 11
- 238000009418 renovation Methods 0.000 title 1
- 238000000746 purification Methods 0.000 claims abstract description 16
- 238000011069 regeneration method Methods 0.000 claims abstract description 15
- 230000008929 regeneration Effects 0.000 claims abstract description 12
- 230000001172 regenerating effect Effects 0.000 abstract description 4
- 238000013508 migration Methods 0.000 abstract description 3
- 230000005012 migration Effects 0.000 abstract description 3
- 239000007789 gas Substances 0.000 description 6
- 238000004458 analytical method Methods 0.000 description 5
- 239000002274 desiccant Substances 0.000 description 3
- 238000010586 diagram Methods 0.000 description 2
- 239000012159 carrier gas Substances 0.000 description 1
- 238000010926 purge Methods 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
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Abstract
一种离子迁移谱干燥管的交替使用和再生方法，通过供气泵、四个二位三通电磁阀，将第一根干燥管、离子迁移管和第二根干燥管连接起来成为一个气体流路。在电磁阀关闭状态下，供气泵采集空气、空气经过第一根干燥管进行净化、净化空气进入离子迁移管使用和流出、空气再到第二根干燥管进行第二根干燥管的再生、然后空气排出到大气中。切换电磁阀为开启后，供气泵采集空气、空气经过第二根干燥管进行净化、净化空气进入离子迁移管使用和流出、空气再到第一根干燥管进行第一根干燥管的再生、然后空气排出到大气中。
A method for alternately using and regenerating ion mobility spectrometry drying tubes, connecting the first drying tube, the ion migration tube and the second drying tube through an air supply pump and four two-position three-way solenoid valves to form a gas flow path . When the solenoid valve is closed, the air supply pump collects air, the air passes through the first drying tube for purification, the purified air enters the ion transfer tube for use and flows out, and the air goes to the second drying tube for regeneration of the second drying tube, and then The air is exhausted to atmosphere. After switching the solenoid valve to open, the air supply pump collects air, the air passes through the second drying tube for purification, the purified air enters the ion transfer tube for use and flows out, and the air goes to the first drying tube to regenerate the first drying tube, and then The air is exhausted to atmosphere.
Description
技术领域 technical field
本发明属于化学分析领域离子迁移谱的分析技术，具体是一种离子迁移谱干燥管的交替使用和再生方法。The invention belongs to the analysis technology of ion mobility spectrometry in the field of chemical analysis, in particular to a method for alternately using and regenerating ion mobility spectrometry drying tubes.
背景技术 Background technique
采用离子迁移谱技术进行样品分析时，需要通过仪器内部的供气泵、经干燥管来源源不断地产生洁净的空气，提供分析必须的漂气和载气，保证离子迁移谱的正常分析状态。即使是待机状态下，也要开启供气泵，维持洁净空气来吹洗仪器。When ion mobility spectrometry is used for sample analysis, it is necessary to continuously generate clean air through the air supply pump inside the instrument and through the drying tube to provide the necessary drift gas and carrier gas for analysis to ensure the normal analysis status of ion mobility spectrometry. Even in standby mode, the air supply pump should be turned on to maintain clean air to purge the instrument.
干燥管内的干燥剂容量有限，在供气泵连续使用的情况下，几天到一个月之内，就要关闭仪器，频繁更换干燥剂，并且要离线对干燥剂进行再生。The capacity of the desiccant in the drying tube is limited. In the case of continuous use of the air supply pump, within a few days to a month, the instrument must be shut down, the desiccant must be replaced frequently, and the desiccant must be regenerated off-line.
本发明通过一种离子迁移谱干燥管的交替使用和再生方法，解决上述问题。The invention solves the above-mentioned problems through an alternate use and regeneration method of ion mobility spectrometry drying tubes.
发明内容 Contents of the invention
一种离子迁移谱干燥管的交替使用和再生方法，通过供气泵、四个二位三通电磁阀，将第一根干燥管、离子迁移管和第二根干燥管连接起来成为一个气体流路。A method for alternately using and regenerating ion mobility spectrometry drying tubes, connecting the first drying tube, the ion migration tube and the second drying tube through an air supply pump and four two-position three-way solenoid valves to form a gas flow path .
供气泵的进口与外界空气相连通，供气泵的出口与第一个二位三通电磁阀的第一个接口相连，第一个二位三通电磁阀的第二个接口和第三个接口分别与第一根干燥管和第二根干燥管的一端A口相连；The inlet of the air supply pump is connected with the outside air, the outlet of the air supply pump is connected with the first port of the first two-position three-way solenoid valve, the second port and the third port of the first two-position three-way solenoid valve Respectively connected to the first drying pipe and one end A of the second drying pipe;
第二个二位三通电磁阀的第一个接口与外界空气相连通，第二个二位三通电磁阀的第二个接口和第三个接口分别与第一根干燥管和第二根干燥管的一端A口相连；The first port of the second two-position three-way solenoid valve is connected with the outside air, the second port and the third port of the second two-position three-way solenoid valve are respectively connected to the first drying pipe and the second One end of the drying pipe is connected to port A;
第三个二位三通电磁阀的第一个接口与离子迁移管的出气口相连，第三个二位三通电磁阀的第二个接口和第三个接口分别与第一根干燥管和第二根干燥管的另一端B口相连；The first port of the third two-position three-way solenoid valve is connected to the gas outlet of the ion transfer tube, the second port and the third port of the third two-position three-way solenoid valve are respectively connected to the first drying tube and The other end of the second drying pipe is connected to port B;
第四个二位三通电磁阀的第一个接口与离子迁移管的进气口相连，第四个二位三通电磁阀的第二个接口和第三个接口分别与第一根干燥管和第二根干燥管的另一端B口相连。The first port of the fourth two-position three-way solenoid valve is connected to the air inlet of the ion transfer tube, the second port and the third port of the fourth two-position three-way solenoid valve are respectively connected to the first drying tube Connect with the other end B port of the second drying tube.
在电磁阀关闭状态下，供气泵采集空气、空气经过第一根干燥管进行净化、净化空气进入离子迁移管使用和流出、空气再到第二根干燥管进行第二根干燥管的再生、然后空气排出到大气中；When the solenoid valve is closed, the air supply pump collects air, the air passes through the first drying tube for purification, the purified air enters the ion transfer tube for use and flows out, and the air goes to the second drying tube for regeneration of the second drying tube, and then Air is vented to the atmosphere;
所述电磁阀关闭状态是指：The closed state of the solenoid valve refers to:
第一个二位三通电磁阀与第二根干燥管相连的接口关闭；The connection between the first two-position three-way solenoid valve and the second drying pipe is closed;
第二个二位三通电磁阀与第一根干燥管相连的接口关闭；The connection between the second two-position three-way solenoid valve and the first drying pipe is closed;
第三个二位三通电磁阀与第一根干燥管相连的接口关闭；The connection between the third two-position three-way solenoid valve and the first drying pipe is closed;
第四个二位三通电磁阀与第二根干燥管相连的接口关闭。The connection between the fourth two-position three-way solenoid valve and the second drying pipe is closed.
切换电磁阀为开启后，供气泵采集空气、空气经过第二根干燥管进行净化、净化空气进入离子迁移管使用和流出、空气再到第一根干燥管进行第一根干燥管的再生、然后空气排出到大气中；After switching the solenoid valve to open, the air supply pump collects air, the air passes through the second drying tube for purification, the purified air enters the ion transfer tube for use and flows out, and the air goes to the first drying tube to regenerate the first drying tube, and then Air is vented to the atmosphere;
所述电磁阀开启状态是指：The open state of the solenoid valve refers to:
第一个二位三通电磁阀与第一根干燥管相连的接口关闭；The connection between the first two-position three-way solenoid valve and the first drying pipe is closed;
第二个二位三通电磁阀与第二根干燥管相连的接口关闭；The connection between the second two-position three-way solenoid valve and the second drying pipe is closed;
第三个二位三通电磁阀与第二根干燥管相连的接口关闭；The connection between the third two-position three-way solenoid valve and the second drying pipe is closed;
第四个二位三通电磁阀与第一根干燥管相连的接口关闭。The connection between the fourth two-position three-way solenoid valve and the first drying pipe is closed.
电磁阀关闭的时间为1-30天。The time for the solenoid valve to close is 1-30 days.
电磁阀开启的时间为1-30天。The time for the solenoid valve to be opened is 1-30 days.
在电磁阀关闭状态下，供气泵采集空气、空气经过第一根干燥管进行净化、净化空气进入离子迁移管使用和流出、空气再到第二根干燥管进行第二根干燥管的再生、然后空气排出到大气中。When the solenoid valve is closed, the air supply pump collects air, the air passes through the first drying tube for purification, the purified air enters the ion transfer tube for use and flows out, and the air goes to the second drying tube for regeneration of the second drying tube, and then The air is exhausted to atmosphere.
切换电磁阀为开启后，供气泵采集空气、空气经过第二根干燥管进行净化、净化空气进入离子迁移管使用和流出、空气再到第一根干燥管进行第一根干燥管的再生、然后空气排出到大气中。After switching the solenoid valve to open, the air supply pump collects air, the air passes through the second drying tube for purification, the purified air enters the ion transfer tube for use and flows out, and the air goes to the first drying tube to regenerate the first drying tube, and then The air is exhausted to atmosphere.
这种离子迁移谱干燥管的交替连续使用和连续再生方法，实现了二个干燥管的交替连续使用和连续再生，提高了干燥管的使用寿命，缩短了再生时间。The alternate continuous use and continuous regeneration method of the ion mobility spectrometer drying tubes realizes the alternate continuous use and continuous regeneration of the two drying tubes, improves the service life of the drying tubes, and shortens the regeneration time.
附图说明 Description of drawings
图1，在电磁阀2、3、6、7关闭状态下示意图；Fig. 1 is a schematic diagram in the closed state of solenoid valves 2, 3, 6, and 7;
图2，切换电磁阀2、3、6、7为开启下示意图。Fig. 2, the switching solenoid valve 2, 3, 6, 7 is a schematic diagram under opening.
具体实施方式 Detailed ways
一种离子迁移谱干燥管的交替使用和再生方法，通过供气泵、四个二位三通电磁阀，将第一根干燥管、离子迁移管和第二根干燥管连接起来成为一个气体流路。A method for alternately using and regenerating ion mobility spectrometry drying tubes, connecting the first drying tube, the ion migration tube and the second drying tube through an air supply pump and four two-position three-way solenoid valves to form a gas flow path .
供气泵的进口与外界空气相连通，供气泵的出口与第一个二位三通电磁阀的第一个接口相连，第一个二位三通电磁阀的第二个接口和第三个接口分别与第一根干燥管和第二根干燥管的一端A口相连；The inlet of the air supply pump is connected with the outside air, the outlet of the air supply pump is connected with the first port of the first two-position three-way solenoid valve, the second port and the third port of the first two-position three-way solenoid valve Respectively connected to the first drying pipe and one end A of the second drying pipe;
第二个二位三通电磁阀的第一个接口与外界空气相连通，第二个二位三通电磁阀的第二个接口和第三个接口分别与第一根干燥管和第二根干燥管的一端A口相连；The first port of the second two-position three-way solenoid valve is connected with the outside air, the second port and the third port of the second two-position three-way solenoid valve are respectively connected to the first drying pipe and the second One end of the drying pipe is connected to port A;
第三个二位三通电磁阀的第一个接口与离子迁移管的出气口相连，第三个二位三通电磁阀的第二个接口和第三个接口分别与第一根干燥管和第二根干燥管的另一端B口相连；The first port of the third two-position three-way solenoid valve is connected to the gas outlet of the ion transfer tube, the second port and the third port of the third two-position three-way solenoid valve are respectively connected to the first drying tube and The other end of the second drying pipe is connected to port B;
第四个二位三通电磁阀的第一个接口与离子迁移管的进气口相连，第四个二位三通电磁阀的第二个接口和第三个接口分别与第一根干燥管和第二根干燥管的另一端B口相连。The first port of the fourth two-position three-way solenoid valve is connected to the air inlet of the ion transfer tube, the second port and the third port of the fourth two-position three-way solenoid valve are respectively connected to the first drying tube Connect with the other end B port of the second drying tube.
在电磁阀关闭状态下，供气泵采集空气、空气经过第一根干燥管进行净化、净化空气进入离子迁移管使用和流出、空气再到第二根干燥管进行第二根干燥管的再生、然后空气排出到大气中；When the solenoid valve is closed, the air supply pump collects air, the air passes through the first drying tube for purification, the purified air enters the ion transfer tube for use and flows out, and the air goes to the second drying tube for regeneration of the second drying tube, and then Air is vented to the atmosphere;
所述电磁阀关闭状态是指：The closed state of the solenoid valve refers to:
第一个二位三通电磁阀与第二根干燥管相连的接口关闭；The connection between the first two-position three-way solenoid valve and the second drying pipe is closed;
第二个二位三通电磁阀与第一根干燥管相连的接口关闭；The connection between the second two-position three-way solenoid valve and the first drying pipe is closed;
第三个二位三通电磁阀与第一根干燥管相连的接口关闭；The connection between the third two-position three-way solenoid valve and the first drying pipe is closed;
第四个二位三通电磁阀与第二根干燥管相连的接口关闭。The connection between the fourth two-position three-way solenoid valve and the second drying pipe is closed.
切换电磁阀为开启后，供气泵采集空气、空气经过第二根干燥管进行净化、净化空气进入离子迁移管使用和流出、空气再到第一根干燥管进行第一根干燥管的再生、然后空气排出到大气中；After switching the solenoid valve to open, the air supply pump collects air, the air passes through the second drying tube for purification, the purified air enters the ion transfer tube for use and flows out, and the air goes to the first drying tube to regenerate the first drying tube, and then Air is vented to the atmosphere;
所述电磁阀开启状态是指：The open state of the solenoid valve refers to:
第一个二位三通电磁阀与第一根干燥管相连的接口关闭；The connection between the first two-position three-way solenoid valve and the first drying pipe is closed;
第二个二位三通电磁阀与第二根干燥管相连的接口关闭；The connection between the second two-position three-way solenoid valve and the second drying pipe is closed;
第三个二位三通电磁阀与第二根干燥管相连的接口关闭；The connection between the third two-position three-way solenoid valve and the second drying pipe is closed;
第四个二位三通电磁阀与第一根干燥管相连的接口关闭。The connection between the fourth two-position three-way solenoid valve and the first drying pipe is closed.
通过供气泵1，四个二位三通电磁阀2、3、6、7，将第一根干燥管4、离子迁移管8和第二根干燥管5连接起来成为一个气体流路。见图1、图2。Through the air supply pump 1 and four two-position three-way solenoid valves 2, 3, 6, 7, the first drying tube 4, the ion transfer tube 8 and the second drying tube 5 are connected to form a gas flow path. See Figure 1 and Figure 2.
图1，在电磁阀2、3、6、7关闭状态下，供气泵采集空气9、空气经过电磁阀2、第一根干燥管4进行净化、净化空气经电磁阀7进入离子迁移管8使用和流出、空气经电磁阀6、再到第二根干燥管5进行第二根干燥管的再生、然后空气经电磁阀3排出到大气10中。Figure 1, when the solenoid valves 2, 3, 6, and 7 are closed, the air supply pump collects air 9, the air passes through the solenoid valve 2, and the first drying tube 4 for purification, and the purified air enters the ion transfer tube 8 through the solenoid valve 7 for use And flow out, the air passes through the electromagnetic valve 6, and then goes to the second drying pipe 5 to regenerate the second drying pipe, and then the air is discharged into the atmosphere 10 through the electromagnetic valve 3.
图2，切换电磁阀2、3、6、7为开启后，供气泵采集空气9、空气经过电磁阀2、第二根干燥管5进行净化、净化空气经电磁阀7进入离子迁移管8使用和流出、空气经电磁阀6、再到第一根干燥管4进行第一根干燥管的再生、然后空气经电磁阀3排出到大气10中。Figure 2, after switching the solenoid valves 2, 3, 6, 7 to open, the air supply pump collects air 9, the air passes through the solenoid valve 2, and the second drying pipe 5 for purification, and the purified air enters the ion transfer tube 8 through the solenoid valve 7 for use And flow out, the air passes through the electromagnetic valve 6, and then goes to the first drying pipe 4 to regenerate the first drying pipe, and then the air is discharged into the atmosphere 10 through the electromagnetic valve 3.
这种离子迁移谱干燥管的交替连续使用和连续再生方法，实现了二个干燥管的交替连续使用和连续再生，提高了干燥管的使用寿命，缩短了再生时间。The alternate continuous use and continuous regeneration method of the ion mobility spectrometer drying tubes realizes the alternate continuous use and continuous regeneration of the two drying tubes, improves the service life of the drying tubes, and shortens the regeneration time.
实施例1：Example 1:
在电磁阀2、3、6、7关闭状态下（图1），供气泵采集空气9、空气经过电磁阀2、第一根干燥管4进行净化、净化空气经电磁阀7进入离子迁移管8使用和流出、空气经电磁阀6、再到第二根干燥管5进行第二根干燥管的再生、然后空气经电磁阀3排出到大气10中。When the electromagnetic valves 2, 3, 6, and 7 are closed (Fig. 1), the air supply pump collects air 9, the air passes through the electromagnetic valve 2, and the first drying tube 4 for purification, and the purified air enters the ion transfer tube 8 through the electromagnetic valve 7 Using and flowing out, the air passes through the solenoid valve 6, and then goes to the second drying pipe 5 to regenerate the second drying pipe, and then the air is discharged into the atmosphere 10 through the solenoid valve 3.
在此状态下，离子迁移谱可以正常分析样品，持续1天后，切换电磁阀2、3、6、7为开启后（图2），供气泵采集空气9、空气经过电磁阀2、第二根干燥管5进行净化、净化空气经电磁阀7进入离子迁移管8使用和流出、空气经电磁阀6、再到第一根干燥管4进行第一根干燥管的再生、然后空气经电磁阀3排出到大气10中。在此状态下，离子迁移谱可以正常分析样品。In this state, the ion mobility spectrometer can analyze the sample normally. After one day, switch the solenoid valves 2, 3, 6, and 7 to open (Fig. 2), the air supply pump collects air 9, the air passes through the solenoid valve 2, the second The drying pipe 5 is used for purification, and the purified air enters the ion transfer pipe 8 through the solenoid valve 7 for use and flows out. Exhaust to atmosphere 10. In this state, ion mobility spectrometry can analyze samples normally.
电磁阀关闭切换到开启的时间间隔为1天，再从开启切换到关闭的时间间隔为1天，反复重复上述过程90天，离子迁移谱可以正常分析样品。The time interval for switching the solenoid valve from closing to opening is 1 day, and then switching from opening to closing is 1 day. Repeat the above process for 90 days, and the ion mobility spectrometer can analyze the sample normally.
实施例2：Example 2:
在电磁阀2、3、6、7开启状态下（图1），供气泵采集空气9、空气经过电磁阀2、第一根干燥管4进行净化、净化空气经电磁阀7进入离子迁移管8使用和流出、空气经电磁阀6、再到第二根干燥管5进行第二根干燥管的再生、然后空气经电磁阀3排出到大气10中。When the solenoid valves 2, 3, 6, and 7 are open (Figure 1), the air supply pump collects air 9, the air passes through the solenoid valve 2, and the first drying tube 4 for purification, and the purified air enters the ion transfer tube 8 through the solenoid valve 7 Using and flowing out, the air passes through the solenoid valve 6, and then goes to the second drying pipe 5 to regenerate the second drying pipe, and then the air is discharged into the atmosphere 10 through the solenoid valve 3.
在此状态下，离子迁移谱可以正常分析样品，持续30天后，切换电磁阀2、3、6、7为关闭后（图2），供气泵采集空气9、空气经过电磁阀2、第二根干燥管5进行净化、净化空气经电磁阀7进入离子迁移管8使用和流出、空气经电磁阀6、再到第一根干燥管4进行第一根干燥管的再生、然后空气经电磁阀3排出到大气10中。在此状态下，离子迁移谱可以正常分析样品。In this state, the ion mobility spectrometer can analyze the sample normally. After 30 days, switch the solenoid valves 2, 3, 6, and 7 to close (Figure 2), and the air supply pump collects air 9. The air passes through the solenoid valve 2 and the second tube. The drying pipe 5 is used for purification, and the purified air enters the ion transfer pipe 8 through the solenoid valve 7 for use and flows out. Exhaust to atmosphere 10. In this state, ion mobility spectrometry can analyze samples normally.
电磁阀开启切换到关闭的时间间隔为30天，再从关闭切换到开启的时间间隔为30天，反复重复上述过程60天，离子迁移谱可以正常分析样品。The time interval for switching the solenoid valve from opening to closing is 30 days, and then switching from closing to opening is 30 days. Repeat the above process repeatedly for 60 days, and the ion mobility spectrometer can analyze the sample normally.
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