CN2896265Y - Electromechanical oxygen analysis instrument pretreatment device for use in chemical fertilizer factory - Google Patents
Electromechanical oxygen analysis instrument pretreatment device for use in chemical fertilizer factory Download PDFInfo
- Publication number
- CN2896265Y CN2896265Y CN 200520077704 CN200520077704U CN2896265Y CN 2896265 Y CN2896265 Y CN 2896265Y CN 200520077704 CN200520077704 CN 200520077704 CN 200520077704 U CN200520077704 U CN 200520077704U CN 2896265 Y CN2896265 Y CN 2896265Y
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- CN
- China
- Prior art keywords
- chemical fertilizer
- fertilizer factory
- pretreatment unit
- devulcanizer
- oxygen analyser
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Abstract
The utility model relates to a preprocessing device for the electrochemical oxygen analyzer for the fertilizer, which is characterized in that the device is connected together by a water-washing bottle, an electronic dehumidifier, an evaporator, a primary devulcanizer, a secondary devulcanizer, a needle valve and a flow meter in sequence. Trough water flow washing, dehumidifying, dehydrating, desulphurization, alcohol removal, etc., the utility model can effectively remove the micro-scale SO2, H2S and alcohol substance in the half water gas in the technology flow of the commutation work section and eliminate influence of above substance upon the catalyst and the electrode for the oxygen consistency sensor in the electrochemical oxygen analyzer, so that durability of the oxygen consistency sensor can be extended from 3 to 5 days to 10 months (over 300 days), thereby ensuring that the electrochemical oxygen analyzer works stably and analyzes accurately and reliably. Cost of the whole processing device is less than RMB 2000. Moreover, the maintenance workload is small and the desulphurization agent and dehydrating agent need to be replaced only once a month.
Description
Technical field
The utility model relates to a kind of industrial online analytical instrument sampling pretreatment unit, is a kind of chemical fertilizer factory electrochemistry oxygen analyser pretreatment unit specifically.
Background technology
China nearly thousand tame chemical fertilizer production enterprise adopts semiwater gas by conversion process and other technological process synthetic ammonia, and the semiwater gas composition generally comprises H
2: 40～44%, CO:26～29%, N
2: 18～21%, CO
2: 7～9%, CH
4: 1～1.5%, O
2: 0～0.2% and the trace SO
2, H
2S and alcohols.For guarantee production safety, prolong catalyst serviceable life, prevent that catalyst poisons, satisfies manufacturing technique requirent, must the control semiwater gas and the oxygen concentration of conversion gas, therefore to analyze the oxygen concentration in semiwater gas and the conversion gas at conversion section.Present common employing magnetic oxygen analyzer of chemical fertilizer production enterprise and dumbbell type mechanical type oxygen analyzer, these two kinds of oxygen analyzers all are to utilize the paramagnetism physical characteristics of oxygen to come oxygen concentration is analyzed, its complex structure, the requirement on machining accuracy height, installation and maintenance inconvenience, production use cost height, its price are generally at 2.5～50,000 yuan/platform.
The electrochemistry oxygen analyser is simple in structure, precision is high, working service is convenient, and cost only is 1/3～1/5 (only 1000 yuan/of its core members oxygen concentration sensor) of magnetic conductance formula oxygen analyzer and dumbbell mechanical type oxygen analyzer.The critical component of electrochemistry oxygen analyser is the electrochemistry oxygen concentration sensor, because the SO that contains in the semiwater gas
2, H
2S and alcohols impurity can cause that the Catalytic Layer in the oxygen concentration sensor is poisoned and the electrode purifying, so seriously disturb oxygen concentration sensor operate as normal, shorten its serviceable life (having only 3-5 days).Therefore, how the electrochemistry oxygen analyser is effective to the analysis of the oxygen concentration in semiwater gas and the conversion gas, being that chemical fertilizer production enterprise is urgent at present wishes the problem that solves.
Summary of the invention
To be solved in the utility modelly be exactly existing electrochemistry oxygen analyser and can not be used for technical matters that the oxygen concentration of semiwater gas and conversion gas is analyzed.
For solving the problems of the technologies described above, the utility model provides a kind of pretreatment unit, and this device is by being formed by connecting in turn by washing bottle, electronics dehumidifier, hydroextractor, first grade desulfurizing device, secondary devulcanizer, needle-valve, flowmeter.
The utility model by current cleaning, dehumidifying, dehydration, desulfurization, remove technological process such as alcohol, can effectively remove SO with the trace level in the semiwater gas of conversion section technological process
2, H
2S and alcohols material, the residual quantity that makes its sulphur compound is less than 10PPM, eliminate above-mentioned substance to the catalyzer of oxygen concentration sensor in the electrochemistry oxygen analyser and the influence of electrode, can extend to more than October (300 days) serviceable life of oxygen concentration sensor from 3～5 days, so just guaranteed that electrochemistry oxygen analyser working stability, analysis are correctly, reliably, the cost of a whole set of pretreatment unit is less than 2000 yuan, and maintenance workload is little, only need change desulfurization in every month, dewatering agent once gets final product.Of the present utility modelly occur making chemical fertilizer factory to replace expensive magnetic conductance formula oxygen analyzer and dumbbell type oxygen analyzer with cheap electrochemistry oxygen analyser.
Description of drawings
Fig. 1 is a structural representation of the present utility model
Embodiment
Referring to Fig. 1, the utility model is made up of variable valve 2, washing bottle 3, electronics dehumidifier 4, draining valve 5, filtrator 6,7,8, hydroextractor 9, first grade desulfurizing device 10, secondary devulcanizer 11, needle-valve 12, flowmeter 13, wherein is formed by connecting in turn.Variable valve 2, washing bottle 3, electronics dehumidifier 4, draining valve 5, filtrator 6,7,8, hydroextractor 9, filtrator 7, first grade desulfurizing device 10, filtrator 8, secondary devulcanizer 11, needle-valve 12, flowmeter 13 connect in turn.Variable valve 2 is used for adjusting and enters gas sampled flow of the present utility model from gas technology pipeline 1.The common commercially available electronics dehumidifier that electronics dehumidifier 4 adopts gets final product, and the water of its draining is discharged by draining valve 5.What filtrator device 6,7,8 adopted is the common commercial filters of band core sheet, and it mainly acts on is to prevent that micronic dust from entering the electrochemistry oxygen analyser.Hydroextractor 9 is an ampuliform, and the dewatering agent in it is an anhydrous calcium chloride.The I and II devulcanizer also is an ampuliform, and the desulfurizing agent in it is formulated by weight 3.5: 1 ratio by zinc-manganese desulfurizing agent and ferric oxide desulfurizer.Needle-valve 12 is used to regulate the airshed that enters flowmeter 13.
Brief description workflow of the present utility model once:
Gas sampled from gas technology pipeline 1 enters washing bottle 3 by flowmeter 2, after washing, become saturation vapour, carry out preliminary hydro-extraction by electronics dehumidifier 4, the water that is taken off is discharged by draining valve 5, carry out second dehydration through hydroextractor 6 again, remove the micro-moisture (PPM level) in the gas sampled; Gas sampled after dehydration is further removed contained SO through I and II desulfurizer 10,11 again
2, H
2S and alcohols material Determination of Trace Sulfur compound residual (＜enter electrochemistry oxygen analyser 14 and analyze through needle-valve 12, flowmeter 13 again after 10PPM).
Claims (7)
1, chemical fertilizer factory's electrochemistry oxygen analyser pretreatment unit is characterized in that being formed by connecting in turn by washing bottle, electronics dehumidifier, hydroextractor, first grade desulfurizing device, secondary devulcanizer, needle-valve, flowmeter.
2, chemical fertilizer factory according to claim 1 electrochemistry oxygen analyser pretreatment unit is characterized in that a filtrator respectively is equipped with in the exit of hydroextractor and I and II devulcanizer.
3, chemical fertilizer factory according to claim 2 electrochemistry oxygen analyser pretreatment unit is characterized in that described filtrator is the filtrator of band core sheet.
4, chemical fertilizer factory according to claim 1 electrochemistry oxygen analyser pretreatment unit is characterized in that the electronics dehumidifier has a draining valve.
5,, it is characterized in that also being with a variable valve before the washing bottle according to the described chemical fertilizer factory of claim 1 electrochemistry oxygen analyser pretreatment unit.
6, according to any described chemical fertilizer factory electrochemistry oxygen analyser pretreatment unit of claim 1 to 5, it is characterized in that the dewatering agent in the hydroextractor is an anhydrous calcium chloride.
7,, it is characterized in that desulfurizing agent is formulated by weight 3.5: 1 ratio by zinc-manganese desulfurizing agent and ferric oxide desulfurizer in the I and II devulcanizer according to any described chemical fertilizer factory electrochemistry oxygen analyser pretreatment unit of claim 1 to 5.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200520077704 CN2896265Y (en) | 2005-11-16 | 2005-11-16 | Electromechanical oxygen analysis instrument pretreatment device for use in chemical fertilizer factory |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200520077704 CN2896265Y (en) | 2005-11-16 | 2005-11-16 | Electromechanical oxygen analysis instrument pretreatment device for use in chemical fertilizer factory |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2896265Y true CN2896265Y (en) | 2007-05-02 |
Family
ID=38065840
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 200520077704 Expired - Lifetime CN2896265Y (en) | 2005-11-16 | 2005-11-16 | Electromechanical oxygen analysis instrument pretreatment device for use in chemical fertilizer factory |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2896265Y (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104403699A (en) * | 2014-11-13 | 2015-03-11 | 甘肃酒钢集团宏兴钢铁股份有限公司 | Coke oven sampling gas pretreatment device |
-
2005
- 2005-11-16 CN CN 200520077704 patent/CN2896265Y/en not_active Expired - Lifetime
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104403699A (en) * | 2014-11-13 | 2015-03-11 | 甘肃酒钢集团宏兴钢铁股份有限公司 | Coke oven sampling gas pretreatment device |
| CN104403699B (en) * | 2014-11-13 | 2017-03-01 | 甘肃酒钢集团宏兴钢铁股份有限公司 | One kind is used for coke oven sample gas pre-processing device |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| ASS | Succession or assignment of patent right |
Owner name: NANJING ZHIDA ANALYTICAL INSTRUMENT CO., LTD. Free format text: FORMER OWNER: SUO FEIFEI Effective date: 20070907 |
|
| C41 | Transfer of patent application or patent right or utility model | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20070907 Address after: 211100, No. 2108, good faith Road, Jiangning District, Jiangsu, Nanjing Patentee after: Nanjing Zhida Analytical Instrument Co., Ltd. Address before: 211100, No. 2108, good faith Road, Jiangning District, Jiangsu, Nanjing Patentee before: Suo Feifei |
|
| CX01 | Expiry of patent term |
Granted publication date: 20070502 |
|
| EXPY | Termination of patent right or utility model |