CN217466837U - Pretreatment device of gas analyzer for measuring trace oxygen content in sample gas - Google Patents
Pretreatment device of gas analyzer for measuring trace oxygen content in sample gas Download PDFInfo
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- CN217466837U CN217466837U CN202123228415.9U CN202123228415U CN217466837U CN 217466837 U CN217466837 U CN 217466837U CN 202123228415 U CN202123228415 U CN 202123228415U CN 217466837 U CN217466837 U CN 217466837U
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Abstract
The utility model discloses a measure preprocessing device of gas analyzer of trace oxygen content in sample gas, including washing jar, electron condenser, condensation filter, the washing jar has sample gas import and gas outlet, and the gas outlet of washing jar connects the electron condenser, the gas outlet connection condensation filter of electron condenser, the gas outlet connection three-way valve of condensation filter, three-way valve connection trace oxygen analyzer. The utility model discloses an install a preprocessing device additional at the sampling interface of sample gas, the sample gas is washed away through the washing jar and is removed water-soluble in the sample gas and easy crystallization material under normal atmospheric temperature state, gets rid of the moisture in the sample gas through electronic condenser, can increase the life that trace oxygen contains the analysis appearance.
Description
Technical Field
The utility model belongs to the technical field of gas analysis measures, specifically relate to a and measure trace oxygen content's in sample gas pretreatment device of gas analyzer.
Background
The micro oxygen analyzer has a wide application range, and is mainly applied to the fields of steel, metallurgy, thermoelectricity, petrifaction, chemical industry, coking, PVC, polycrystalline silicon, synthetic ammonia and the like. When a trace oxygen analyzer is used for measuring the concentration of trace oxygen in sample gas containing materials (such as caprolactam) which are soluble in water and easy to crystallize at normal temperature, moisture in the sample gas is easy to condense and condense on the tube wall of the oxygen analyzer, so that the dissolution and absorption of the trace oxygen are caused, the measurement result is influenced, and the service life of the analyzer is influenced. Meanwhile, the easily crystallized materials in the sample gas are condensed in the oxygen analyzer pipeline at normal temperature, so that the blockage and pollution of a permeable membrane are easily caused, and the service life of the oxygen analyzer is greatly influenced.
Therefore, it is very necessary to develop a pretreatment device which is safe and reliable to use, simple to maintain and capable of prolonging the service life of trace oxygen analysis, and the pretreatment device is used for pretreating the sample gas to be detected before the sample gas enters the trace oxygen analyzer so as to solve the problem that the service life of the sample gas is influenced by the condensation of moisture and easily-crystallized materials in the oxygen analyzer pipeline.
SUMMERY OF THE UTILITY MODEL
The utility model aims to overcome the shortcomings of the prior art and provide a pretreatment device of a gas analyzer for measuring the trace oxygen content in sample gas. The invention adds a pretreatment device on the sampling interface of the sample gas, the sample gas is washed by the water washing tank to remove the water-soluble and easily crystallized materials in the sample gas at normal temperature, and the water in the sample gas is removed by the electronic condenser, thus prolonging the service life of the trace oxygen content analyzer.
For the purpose of realizing above purpose the utility model provides a technical scheme that its technical problem adopted is: the utility model provides a measure in sample gas trace oxygen content's gas analyzer's preprocessing device, includes washing jar, electron condenser, the filter that condenses, the washing jar has sample gas import and gas outlet, and the gas outlet connection electron condenser of washing jar, the gas outlet connection filter that condenses of electron condenser, the gas outlet connection three-way valve of the filter that condenses, three-way valve connection trace oxygen analyzer.
In a preferred embodiment of the present invention, the pretreatment device is provided with a sample gas collection port, a water inlet, a water outlet, and a nitrogen gas inlet.
The sample gas enters the pretreatment device through the sampling interface, the water washing tank is used for washing out materials which are soluble in water and easy to crystallize and block the pretreatment device and the trace oxygen analyzer at normal temperature, the materials enter the electronic condenser to remove water in the sample gas, the service life of the trace oxygen analyzer is ensured, and finally the materials enter the trace oxygen analyzer through the condensation filter and the three-way valve for oxygen content detection.
In a preferred embodiment of the present invention, the pre-treatment device is provided with a timer, and the timer is connected with the water inlet and the water outlet through the water inlet valve and the water discharge valve respectively; the timer can ensure that the water quantity in the water washing tank is sufficient and can be replaced in time.
In a preferred embodiment of the present invention, the pre-processing apparatus further comprises a nitrogen protection pipeline, the nitrogen protection pipeline is provided with an air filtering pressure reducing valve, and a pressure gauge is arranged between the air filtering pressure reducing valve and the three-way valve; when the trace oxygen analysis appearance did not use, preprocessing device accessed the nitrogen protection pipeline through switching three-way valve to nitrogen gas circulation direction, contained 99.995% pure nitrogen in the nitrogen gas pipe and flowed through the filtration relief pressure valve from the nitrogen gas air inlet and get into the trace oxygen analysis appearance, and the trace oxygen analysis appearance is interior to let in the gas of low oxygen content for a long time and to increase the life of trace oxygen analysis appearance.
Compared with the background technology, the technical scheme has the following advantages:
1. the utility model discloses the material can get rid of through installing the washing jar additional and wash away water soluble in the sample gas and the material of easy crystallization under normal atmospheric temperature state to can avoid these materials to block up preprocessing device and trace oxygen analyzer.
2. The utility model discloses the moisture in the sample gas can be got rid of through installing the electron condenser additional to the material, can promote trace oxygen analyzer's life.
3. The utility model discloses an install the timer additional and can guarantee that the water yield in the washing jar is sufficient to in time change, ensure production normal operating.
4. The utility model discloses be equipped with nitrogen protection pipeline, let in nitrogen gas when trace oxygen analyzer does not use, can increase the life of trace oxygen analyzer.
Drawings
The present invention will be further explained with reference to the drawings and examples.
Fig. 1 is a schematic diagram of a pretreatment device of a gas analyzer for measuring the trace oxygen content in a sample gas according to an embodiment of the present invention, in which: the device comprises a water washing tank 1, an electronic condenser 2, a condensation filter 3, a three-way valve 4, a micro oxygen analyzer 5, a sample gas collecting port 6, a water inlet 7, a water outlet 8, a nitrogen gas inlet 9, a timer 1 10, a timer 2 10, a timer 3, a water inlet valve 11, a water discharge valve 12, an air filtering and reducing valve 13, a pressure gauge 14, a water washing tank sample gas inlet 15, a water washing tank gas outlet 16, an electronic condenser gas outlet 17 and a condensation filter gas outlet 18.
Detailed Description
To make the objects, technical solutions and advantages of the present invention more apparent, the technical solutions of the present invention are further described below with reference to the accompanying drawings and examples, which may have different forms and should not be construed as being limited to the description set forth herein. Like numbers refer to like elements throughout, and similar numbers refer to similar elements.
In the description of the present invention, it is to be understood that the terms "upper", "lower", "front", "rear", "left", "right", "horizontal", "vertical", "top", "bottom", "inner", "outer", and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the perspective views of the drawings, and are only for convenience of description and simplicity of description, but do not indicate or imply that the device or element referred to must have a particular orientation, be constructed and operated in a particular orientation, and thus, should not be construed as limiting the present invention.
As shown in fig. 1, the device comprises a water washing tank 1, an electronic condenser 2, a condensation filter 3, a three-way valve 4, a trace oxygen analyzer 5, a sample gas acquisition port 6, a water inlet 7, a water outlet 8, a nitrogen gas inlet 9, a first timer 10-1, a second timer 10-2, a third timer 10-3, a water inlet valve 11, a drain valve 12, an air filtering and pressure reducing valve 13, a pressure gauge 14, a water washing tank sample gas inlet 15, a water washing tank gas outlet 16, an electronic condenser gas outlet 17 and a condensation filter gas outlet 18. The utility model discloses an install a preprocessing device additional at the sampling interface of appearance gas, wash through the washing jar and remove in the appearance gas water-soluble, easily crystallization material under normal atmospheric temperature state, get rid of the moisture in the appearance gas through electronic condenser, guarantee the life that trace oxygen contains the analysis appearance.
The water washing tank 1 is provided with a sample gas inlet 15, a gas outlet 16 of the water washing tank 1 is connected with the electronic condenser 2, a gas outlet 17 of the electronic condenser 2 is connected with the condensation filter 3, a gas outlet 18 of the condensation filter 3 is connected with the three-way valve 4, and the three-way valve 4 is connected with the trace oxygen analyzer 5.
Sample gas gets into preprocessing device's 1 sample gas import 15 of washing tank through sampling interface 5, it is soluble in water in the sample gas to wash away through 1 washing tank of washing tank, and easy crystallization easily blocks up preprocessing device and trace oxygen analyzer 5's material under normal atmospheric temperature state, get into the moisture in order to get rid of the sample gas through 1 gas outlet 16 of washing tank again, in order to guarantee trace oxygen analyzer 5's life, then get into condensation filter 3 from the gas outlet 17 of electron condenser 2 again, 18 flows through three-way valve 4 from condensation filter 3 gas outlet and gets into trace oxygen analyzer 5 and carry out the oxygen content testing at last.
In order to ensure that the water in the washing tank is sufficient and is replaced in time, the pretreatment device is provided with three timers, a first timer 10-1 is respectively connected with a second timer 10-2 and a third timer 10-3, the second timer 10-2 is connected with a water inlet 7 through a water inlet valve 11, and the third timer 10-3 is connected with a water outlet 8 through a water discharge valve 12; the first timer 10-1 controls the second timer 10-2 and the third timer 10-3, the second timer 10-2 and the third timer 10-3 respectively control the water inlet valve 11 and the water discharge valve 12, when the preset water replacement time of the first timer 10-1 is up, the second timer 10-2 and the third timer 10-3 are started to count down, and then the water inlet valve 11 and the water discharge valve 12 are respectively opened.
The pretreatment device also comprises a nitrogen protection pipeline, the nitrogen protection pipeline is provided with an air filtering pressure reducing valve 13, and a pressure gauge 14 is arranged between the air filtering pressure reducing valve 13 and the three-way valve 4; when trace oxygen analysis appearance 5 does not use, preprocessing device inserts the nitrogen protection pipeline through switching three-way valve 4 to nitrogen gas circulation direction, and 99.995% pure nitrogen gets into trace oxygen analysis appearance 5 from nitrogen gas air inlet flow through air filter relief pressure valve 13, and the gas of the low oxygen content is let in for a long time in the trace oxygen analysis appearance 5, can increase the life of trace oxygen analysis appearance 5.
The above description is only a preferred embodiment of the present invention, and therefore the scope of the present invention should not be limited by this description, and all equivalent changes and modifications made within the scope and the specification of the present invention should be covered by the present invention.
Claims (5)
1. The utility model provides a measure preprocessing device of trace oxygen content's gas analyzer in sample gas, its characterized in that, includes washing jar, electron condenser, condensation filter, the washing jar has sample gas import and gas outlet, and the gas outlet connection electron condenser of washing jar, the gas outlet connection condensation filter of electron condenser, the gas outlet connection three-way valve of condensation filter, three-way valve connection trace oxygen analyzer.
2. The pretreatment device for a gas analyzer for measuring the content of trace oxygen in a sample gas according to claim 1, wherein the pretreatment device is provided with a sample gas collection port, a water inlet port, a water discharge port and a nitrogen gas inlet port.
3. The pretreatment device for a gas analyzer for measuring the content of trace oxygen in a sample gas according to claim 1, wherein the pretreatment device is provided with a timer.
4. The pre-processing apparatus of a gas analyzer for measuring trace oxygen content in a sample gas as claimed in claim 3, wherein the timer is connected to the water inlet and the water outlet through a water inlet valve and a water outlet valve, respectively.
5. The pre-processing device of a gas analyzer for measuring the trace oxygen content in a sample gas as claimed in claim 1, further comprising a nitrogen protection pipeline, wherein the nitrogen protection pipeline is provided with an air filtering pressure reducing valve, and a pressure gauge is arranged between the air filtering pressure reducing valve and the three-way valve.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202123228415.9U CN217466837U (en) | 2021-12-21 | 2021-12-21 | Pretreatment device of gas analyzer for measuring trace oxygen content in sample gas |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202123228415.9U CN217466837U (en) | 2021-12-21 | 2021-12-21 | Pretreatment device of gas analyzer for measuring trace oxygen content in sample gas |
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| Publication Number | Publication Date |
|---|---|
| CN217466837U true CN217466837U (en) | 2022-09-20 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN202123228415.9U Active CN217466837U (en) | 2021-12-21 | 2021-12-21 | Pretreatment device of gas analyzer for measuring trace oxygen content in sample gas |
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| CN (1) | CN217466837U (en) |
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2021
- 2021-12-21 CN CN202123228415.9U patent/CN217466837U/en active Active
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