CN204495640U - The pretreating device of sample is detected for gas micro amount of oxygen - Google Patents

The pretreating device of sample is detected for gas micro amount of oxygen Download PDF

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Publication number
CN204495640U
CN204495640U CN201520230652.4U CN201520230652U CN204495640U CN 204495640 U CN204495640 U CN 204495640U CN 201520230652 U CN201520230652 U CN 201520230652U CN 204495640 U CN204495640 U CN 204495640U
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China
Prior art keywords
sample
alkali liquor
liquor absorption
communicated
pipe
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Expired - Fee Related
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CN201520230652.4U
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Chinese (zh)
Inventor
童孟
白东升
王晓婧
杜娜
程远梅
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Shaanxi Tianhong Silicon Material Co Ltd
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Shaanxi Tianhong Silicon Material Co Ltd
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Abstract

A kind of pretreating device detecting sample for gas micro amount of oxygen is provided, comprise casing, one sidewall of casing is provided with sample inlet and sample export, box house is provided with alkali liquor absorption device and silica gel drying device, alkali liquor absorption device is communicated with sample inlet with pipe I by sample shut-off valve, alkali liquor absorption device is communicated with silica gel drying device with tee ball valve I by pipe II, and silica gel drying device is communicated with sample export with pipe III by tee ball valve II.The utility model absorbs the corrosive substance such as hydrogen chloride, chlorosilane contained in sample by alkali liquor absorption device, and carry out drying process by silica gel drying device, sample is made to meet the requirement of trace oxygen analyzer, thus reach the object detecting Traces of Oxygen in Gases, and ensure that trace oxygen analyzer is not corroded, there is light weight, simple, the portable advantage of structure.

Description

The pretreating device of sample is detected for gas micro amount of oxygen
Technical field
The utility model belongs to aerochemistry and analyzes servicing unit technical field, is specifically related to a kind of pretreating device detecting sample for gas micro amount of oxygen.
Background technology
Trichlorosilane is not only the important intermediate manufacturing silane coupling agent and other organosilicon products, or manufacture the primary raw material of polysilicon, the acidic corrosive materials such as dichlorosilane, silicon tetrachloride and hydrogen chloride can be produced in process of production simultaneously, so process equipment is by just again driving after maintenance, for ensureing driving safety, need to carry out nitrogen purging or hydrogen exchange to equipment, and nitrogen purges or needs to detect the oxygen content in nitrogen, hydrogen after hydrogen exchange.But due to the special nature of hydrogen chloride, chlorosilane, be difficult to be purged or replace totally completely, therefore in nitrogen or hydrogen more or less containing a certain amount of hydrogen chloride and chlorosilane, and common micro-oxygen instrument cannot directly detect this gas containing the corrosive substance such as hydrogen chloride and chlorosilane.Therefore be necessary to propose to improve.
Utility model content
The technical matters that the utility model solves: a kind of pretreating device detecting sample for gas micro amount of oxygen is provided, the corrosive substance such as hydrogen chloride, chlorosilane contained in nitrogen or hydrogen sample is absorbed by alkali liquor absorption device, and carry out drying process by silica gel drying device, nitrogen or hydrogen sample is made to meet the requirement of trace oxygen analyzer, thus reach the object detecting Traces of Oxygen in Gases, and ensure that trace oxygen analyzer is not corroded.
The technical solution adopted in the utility model: the pretreating device detecting sample for gas micro amount of oxygen, comprise casing, one sidewall of described casing is provided with sample inlet and sample export, described box house is provided with alkali liquor absorption device and silica gel drying device, described alkali liquor absorption device is communicated with sample inlet with pipe I by sample shut-off valve, described alkali liquor absorption device is communicated with silica gel drying device with tee ball valve I by pipe II, and described silica gel drying device is communicated with sample export with pipe III by tee ball valve II.
Wherein, described alkali liquor absorption device comprises liquid level gauge, alkali liquor absorption tank, funnel and ball valve, the inside of described alkali liquor absorption tank is provided with liquid level gauge, the side of described alkali liquor absorption tank is provided with bottom air inlet, described bottom air inlet is communicated with sample inlet by the middle pipe I being provided with sample shut-off valve, the top of described alkali liquor absorption tank is connected with funnel by ball valve, and the top of described alkali liquor absorption tank is also provided with gas outlet, top.
Further, described silica gel drying device comprises visual silica dehydrator tank I and visual silica dehydrator tank II, import bottom described visual silica dehydrator tank I is communicated with by tee ball valve I with the import bottom visual silica dehydrator tank II, the common port of described tee ball valve I is communicated with the gas outlet, top of alkali liquor absorption tank by pipe II, the outlet at described visual silica dehydrator tank I top is communicated with by tee ball valve II with the outlet at visual silica dehydrator tank II top, and the common port of described tee ball valve II is communicated with sample export by pipe III.
Further, described pipe I, pipe II and pipe III are all be made up of gapless stainless steel tube.
Further, the upper surface of described casing is provided with handle.
The utility model beneficial effect compared with prior art:
1, the dilute NaOH solution in alkali liquor absorption device, effectively can absorb the corrosive substance such as hydrogen chloride, chlorosilane contained in nitrogen or hydrogen, ensures that trace oxygen analyzer is not corroded;
2, alkali liquor absorption tank top is provided with funnel, is convenient to install liquid caustic soda additional; Alkali liquor absorption tank inside is provided with liquid level gauge, is convenient to observe and control liquid caustic soda addition;
3, visual silica dehydrator tank is built with discolour silica gel, and by observing silica gel color to change silica gel in time, two visual silica dehydrator tanks of Parallel Design can ensure the continuity detected;
4, the utility model weight is 4.5kg, and structure is simple, is easy to carry, and can be used for processing the corrosive substance in the nitrogen of diverse location or hydrogen.
Accompanying drawing explanation
Fig. 1 is structural representation of the present utility model.
Embodiment
Below in conjunction with accompanying drawing 1, a kind of embodiment of the present utility model is described.
The pretreating device of sample is detected for gas micro amount of oxygen, comprise casing 1, preferred casing 1 is rectangular structure and is of a size of 450mm × 180mm × 600mm, the upper surface of described casing 1 is provided with handle 18, one sidewall of described casing 1 is provided with sample inlet 2 and sample export 14, described casing 1 inside is provided with alkali liquor absorption device and silica gel drying device, described alkali liquor absorption device is communicated with sample inlet 2 with pipe I 4 by sample shut-off valve 3, described alkali liquor absorption device is communicated with silica gel drying device with tee ball valve I 9 by pipe II 8, described silica gel drying device is communicated with sample export 14 with pipe III 13 by tee ball valve II 12.Concrete, described alkali liquor absorption device comprises liquid level gauge 6, alkali liquor absorption tank 7, funnel 15 and ball valve 16, described alkali liquor absorption tank 7 is built with alkaline solution, can effectively absorb the hydrogen chloride contained in nitrogen or hydrogen, the corrosive substances such as chlorosilane, the inside of described alkali liquor absorption tank 7 is provided with liquid level gauge 6, liquid level gauge 6 is convenient to the addition observing and control liquid caustic soda, the side of described alkali liquor absorption tank 7 is provided with bottom air inlet 5, described bottom air inlet 5 is communicated with sample inlet 2 by the middle pipe I 4 being provided with sample shut-off valve 3, the top of described alkali liquor absorption tank 7 is connected with funnel 15 by ball valve 16, described funnel 15 is convenient to install liquid caustic soda additional, the top of described alkali liquor absorption tank 7 is also provided with gas outlet, top 17, described silica gel drying device comprises visual silica dehydrator tank I 10 and visual silica dehydrator tank II 11, in these two visual silica dehydrator tanks, all discolour silica gel is housed, by observing the color of silica gel to change silica gel in time, and the continuity of the guaranteed detection of the visual silica dehydrator tank of Parallel Design two, import bottom described visual silica dehydrator tank I 10 is communicated with by tee ball valve I 9 with the import bottom visual silica dehydrator tank II 11, the common port of described tee ball valve I 9 is communicated with the gas outlet, top 17 of alkali liquor absorption tank 7 by pipe II 8, the outlet at described visual silica dehydrator tank I 10 top is communicated with by tee ball valve II 12 with the outlet at visual silica dehydrator tank II 11 top, the common port of described tee ball valve II 12 is communicated with sample export 14 by pipe III 13.Wherein, described pipe I 4, pipe II 8 and pipe III 13 are all be made up of gapless stainless steel tube.
During use, open ball valve 16, the dilute NaOH solution of prepare in advance 10% is added in alkali liquor absorption tank 7 by funnel 15, the addition of dilute NaOH solution is about 2/3 of alkali liquor absorption tank 7 volume, and close ball valve 16, wherein, except adding except dilute NaOH solution process to alkali liquor absorption tank 7, all the other time ball valves 16 are all be in closed condition, nitrogen or hydrogen sample are by sample inlet 2 and sample shut-off valve 3 and enter the inside of alkali liquor absorption tank 7 through the bottom air inlet 5 of alkali liquor absorption tank 7 along pipe I 4, by the alkali lye of alkali liquor absorption tank 7 inside to the hydrogen chloride contained in nitrogen or hydrogen sample, the acidic corrosive materials such as chlorosilane absorb, simultaneously, according to hydrogen chloride in nitrogen or hydrogen sample, the content of chlorosilane can change NaOH solution in time, sample through absorbing passes through the gas outlet, top 17 of alkali liquor absorption tank 7, pipe II 8 enters in visual silica dehydrator tank I 10 and visual silica dehydrator tank II 11 and carries out the parallel drying of two tanks, silica gel can be changed in time according to the color of silica gel in the visual silica dehydrator tank of judgement two simultaneously, dried nitrogen or hydrogen sample are through tee ball valve II 12 and pipe III 13 and access trace oxygen analyzer entrance by sample export 14 and detect.The utility model light weight and structure are simple, are easy to carry, and can be used for processing the corrosive substance in the nitrogen of diverse location or hydrogen.
Above-described embodiment, just preferred embodiment of the present utility model, is not used for limiting the utility model practical range, therefore all equivalence changes done with content described in the utility model claim, all should be included within the utility model right.

Claims (5)

1. the pretreating device of sample is detected for gas micro amount of oxygen, it is characterized in that: comprise casing (1), one sidewall of described casing (1) is provided with sample inlet (2) and sample export (14), described casing (1) inside is provided with alkali liquor absorption device and silica gel drying device, described alkali liquor absorption device is communicated with sample inlet (2) with pipe I (4) by sample shut-off valve (3), described alkali liquor absorption device is communicated with silica gel drying device with tee ball valve I (9) by pipe II (8), described silica gel drying device is communicated with sample export (14) with pipe III (13) by tee ball valve II (12).
2. the pretreating device detecting sample for gas micro amount of oxygen according to claim 1, it is characterized in that: described alkali liquor absorption device comprises liquid level gauge (6), alkali liquor absorption tank (7), funnel (15) and ball valve (16), the inside of described alkali liquor absorption tank (7) is provided with liquid level gauge (6), the side of described alkali liquor absorption tank (7) is provided with bottom air inlet (5), the pipe I (4) that described bottom air inlet (5) is provided with sample shut-off valve (3) by centre is communicated with sample inlet (2), the top of described alkali liquor absorption tank (7) is connected with funnel (15) by ball valve (16), the top of described alkali liquor absorption tank (7) is also provided with gas outlet, top (17).
3. the pretreating device detecting sample for gas micro amount of oxygen according to claim 1 and 2, it is characterized in that: described silica gel drying device comprises visual silica dehydrator tank I (10) and visual silica dehydrator tank II (11), the import of described visual silica dehydrator tank I (10) bottom is communicated with by tee ball valve I (9) with the import of visual silica dehydrator tank II (11) bottom, the common port of described tee ball valve I (9) is communicated with the gas outlet, top (17) of alkali liquor absorption tank (7) by pipe II (8), the outlet at described visual silica dehydrator tank I (10) top is communicated with by tee ball valve II (12) with the outlet at visual silica dehydrator tank II (11) top, the common port of described tee ball valve II (12) is communicated with sample export (14) by pipe III (13).
4. the pretreating device detecting sample for gas micro amount of oxygen according to claim 3, is characterized in that: described pipe I (4), pipe II (8) and pipe III (13) are gapless stainless steel tube.
5. the pretreating device detecting sample for gas micro amount of oxygen according to claim 4, is characterized in that: the upper surface of described casing (1) is provided with handle (18).
CN201520230652.4U 2015-04-15 2015-04-15 The pretreating device of sample is detected for gas micro amount of oxygen Expired - Fee Related CN204495640U (en)

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Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN109444242A (en) * 2018-11-12 2019-03-08 北京天极视讯科技发展有限公司 A kind of aerobic fermentation device external gas analyzing apparatus
CN110044676A (en) * 2019-04-24 2019-07-23 上海汉克威自动化科技有限公司 One kind being used for acrylonitrile installation oxygen analyzer sample gas pretreatment system and method

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN109444242A (en) * 2018-11-12 2019-03-08 北京天极视讯科技发展有限公司 A kind of aerobic fermentation device external gas analyzing apparatus
CN110044676A (en) * 2019-04-24 2019-07-23 上海汉克威自动化科技有限公司 One kind being used for acrylonitrile installation oxygen analyzer sample gas pretreatment system and method

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C56 Change in the name or address of the patentee
CP02 Change in the address of a patent holder

Address after: East River Road Zhengyang town Baoji city Shaanxi province 712038 of Weicheng District of Xianyang City

Patentee after: Shaanxi Tianhong Silicon Material Co., Ltd.

Address before: High road high tech Zone of Xi'an City, Shaanxi province 710006 Xianyang City No. 51 Gaoxin building 6 floor

Patentee before: Shaanxi Tianhong Silicon Material Co., Ltd.

CF01 Termination of patent right due to non-payment of annual fee

Granted publication date: 20150722

Termination date: 20200415

CF01 Termination of patent right due to non-payment of annual fee