CN202446991U - Water oxygenation device for steam oxidation test - Google Patents
Water oxygenation device for steam oxidation test Download PDFInfo
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- CN202446991U CN202446991U CN2011205256798U CN201120525679U CN202446991U CN 202446991 U CN202446991 U CN 202446991U CN 2011205256798 U CN2011205256798 U CN 2011205256798U CN 201120525679 U CN201120525679 U CN 201120525679U CN 202446991 U CN202446991 U CN 202446991U
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- oxygen
- feed
- water
- oxygenation device
- steam oxidation
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Abstract
The utility model provides a water oxygenation device for a steam oxidation test, which comprises an oxygen supply mechanism and an argon supply mechanism and is characterized in that output pipes of the oxygen supply mechanism and the argon supply mechanism are connected with an air input port of a water supply box after being converged; and a water inlet pipe and a water outlet pipe are connected to the water supply box. By the water oxygenation device, water is oxygenated by replacing the original inert gas blowing mechanism with an argon/oxygen mixed gas mechanism and feeding mixed gas mainly based on the solubility law of gas in liquid (Henry's law); and because the relation of a mixing proportion and the dissolved oxygen content can be calibrated in advance through a test under the condition that the ambient temperature and other conditions of a laboratory are given, the mixing proportion can be conveniently set through a calibration result during the test.
Description
Technical field
The utility model relates to and a kind ofly adds trace dissolved oxygen continuously in the water (device of μ g/L～mg/L), this water that contains trace dissolved oxygen can be used as the feedwater of carrying out the steam oxidation test in the laboratory.
Background technology
Parts inwalls in running such as Utility Boiler Superheater, reheater, jet chimney are corroded by steam oxidation can; In order to study its oxidizing process and mechanism; Units concerned have developed the steam oxidation experimental rig; Be implemented in and carry out simulated test in the laboratory, such as, patent of invention CN101118211B " high-temperature steam oxidation test device " and patent of invention CN10162661 B " metal material high temperature water vapor oxidation experiment device ".These two patents of invention are respectively to adopt the degree of depth deoxidation of the method realization feedwater of blown inert gas and pyrogallic acid deoxidation for The Control of Dissolved Oxygen aspect in the test feedwater.In fact, boiler feedwater contains the dissolved oxygen of trace, and particularly feed water oxygenation processing back dissolved oxygen is separated and can be reached tens ppb (μ g/L).So for the steam oxidation test that the laboratory is carried out tallies with the actual situation, perhaps the effect of research feedwater dissolved oxygen in the steam oxidation process also need solve the control problem of testing the feedwater dissolved oxygen content.
Summary of the invention
The purpose of the utility model is that a kind of continuous feed water oxygenation device will be provided, and it can realize keeping required dissolved oxygen content in the steam oxidation test feedwater.
In order to achieve the above object; The technical scheme of the utility model has provided a kind of steam oxidation test feed water oxygenation device; Comprise oxygen feed mechanism and argon gas feed mechanism; It is characterized in that: the efferent duct of oxygen feed mechanism and argon gas feed mechanism converges the back and is connected with the feed-tank gas input port, is connected with inlet pipeline and outlet pipeline on the feed-tank.
Preferably, on the outlet pipeline of said feed-tank, be connected with dissolved oxygen meter.
Preferably, said argon gas feed mechanism comprises the argon gas steel cylinder, and the argon gas steel cylinder connects argon gas pressure-reducing valve and argon flow amount controller successively.
Preferably, said oxygen feed mechanism comprises oxygen bottle, and oxygen bottle connects oxygen pressure-reducing valve and oxygen flow controller successively.
Preferably, the gas discharge outlet at said feed-tank is connected with water seal.
Preferably, said water seal is the transparent organic glass pipe that 500～1000mm height water column is housed.
The utility model mainly is according to the solubility rule (Henry's law) of gas in liquid, and original blown inert gas mechanism is improved to argon/oxygen air mixing machine structure, realizes feed water oxygenation with the mode that feeds mixed gas; Because the relation of mixed ratio and dissolved oxygen content can be in advance through the test demarcation under given laboratory environment temperature and other condition, so can conveniently the air rate example be set when making an experiment by calibration result.
Description of drawings
Fig. 1 is the feed water oxygenation device sketch map that proposes according to the utility model.
Wherein: 1-argon gas steel cylinder, 2-argon gas pressure-reducing valve, 3-argon flow amount controller, 4-oxygen bottle, 5-oxygen pressure-reducing valve, 6-oxygen flow controller, 7-observation window, 8-feed-tank, 9-water seal, 10-dissolved oxygen meter.
The specific embodiment
For making the utility model more obviously understandable, now with a preferred embodiment, and conjunction with figs. elaborates as follows.
As shown in Figure 1; A kind of steam oxidation test feed water oxygenation device that the utility model provides comprises oxygen feed mechanism and argon gas feed mechanism; Wherein, argon gas feed mechanism comprises argon gas steel cylinder 1, and argon gas steel cylinder 1 connects argon gas pressure-reducing valve 2 and argon flow amount controller 3 successively; The oxygen feed mechanism comprises oxygen bottle 4, and oxygen bottle 4 connects oxygen pressure-reducing valve 5 and oxygen flow controller 6 successively.The efferent duct of argon flow amount controller 3 and oxygen flow controller 6 converges and is connected with hermetically-sealed construction feed-tank 8 gas input ports of band observation window 7.On the gas discharge outlet of feed-tank 8, be connected with water seal 9; Water seal 9 is for being equipped with the transparent organic glass pipe of 500～1000mm height water column; Mixed gas output tube is inserted into the water seal bottom through mouth of pipe rubber stopper, can produce the stable normal pressure of gas on the feed-tank liquid level.On feed-tank 8, be connected with inlet pipeline and outlet pipeline, on outlet pipeline, be connected with dissolved oxygen meter 10.
Wherein argon flow amount controller 3 should be according to the suitable type selecting of service condition with oxygen flow controller 6.Before the device work, fully remove dissolved gases in the feedwater, can measure the feedwater dissolved oxygen amount to conclude dissolved gas total amount in the feedwater through dissolved oxygen meter 10 through independent feeding argon gas.Set the flow value of argon flow amount controller 3 and oxygen flow controller 6; Open argon gas and oxygen path; Argon, carrier of oxygen are delivered to argon flow amount controller 3,6 outputs of oxygen flow controller from argon bottle 1 and oxygen cylinder 4 through argon gas pressure-reducing valve 2 and oxygen pressure-reducing valve 5 respectively; Gas feeds feed-tank 8 after in gas pipeline, mixing, after water seal 9 discharges.Water seal 9 is for being equipped with the transparent organic glass pipe of 500～1000mm height water column, and mixed gas output tube is inserted into the water seal bottom through mouth of pipe rubber stopper, and this structure can realize the stable normal pressure of gas on the feed-tank liquid level, avoids ambient atmos to infiltrate.Bypass to the water output setting supplies dissolved oxygen meter 10 to obtain water sample.The make-up water that gets into feed-tank is preferably in advance through degassing processing, and moisturizing can be adopted intermittent mode or continuation mode, but all should note controlling moisturizing technology, prevents that the dissolved oxygen amount of exporting feedwater from departing from prescribed limit.
The oxygen of the utility model mixed minor proportions in the inert gas (selecting argon gas here for use) that feeds feedwater; And make the ratio of argon gas and oxygen keep constant through control; The dividing potential drop that is oxygen keeps constant, under this partial pressure of oxygen, will keep corresponding saturated dissolved oxygen content in the feedwater.The mixed gas of argon/oxygen obtains through the air mixing machine structure: from the argon gas and the oxygen of the steel cylinder entering gas transmission pipeline of behind pressure-reducing valve and flow controller, joining respectively, the gas flow value through the setting flow controller is exported two kinds of gases by a certain percentage.The mixed gas of discharging feed-water vessel is discharged to atmosphere through water seal.The feedwater dissolved oxygen content is monitored through dissolved oxygen analytic instrument, and according to the mixed ratio of Monitoring Data adjustments of gas.
Claims (6)
1. a steam oxidation is tested the feed water oxygenation device; Comprise oxygen feed mechanism and argon gas feed mechanism; It is characterized in that: the efferent duct of oxygen feed mechanism and argon gas feed mechanism converges the back and is connected with feed-tank (8) gas input port, and feed-tank is connected with inlet pipeline and outlet pipeline on (8).
2. a kind of steam oxidation test feed water oxygenation device as claimed in claim 1 is characterized in that: on the outlet pipeline of said feed-tank (8), be connected with dissolved oxygen meter (10).
3. a kind of steam oxidation test feed water oxygenation device as claimed in claim 1 is characterized in that: said argon gas feed mechanism comprises argon gas steel cylinder (1), and argon gas steel cylinder (1) connects argon gas pressure-reducing valve (2) and argon flow amount controller (3) successively.
4. a kind of steam oxidation test feed water oxygenation device as claimed in claim 1, it is characterized in that: said oxygen feed mechanism comprises oxygen bottle (4), oxygen bottle (4) connects oxygen pressure-reducing valve (5) and oxygen flow controller (6) successively.
5. a kind of steam oxidation test feed water oxygenation device as claimed in claim 1 is characterized in that: on the gas discharge outlet of said feed-tank (8), be connected with water seal (9).
6. a kind of steam oxidation test feed water oxygenation device as claimed in claim 5, it is characterized in that: said water seal (9) is for being equipped with the transparent organic glass pipe of 500～1000mm height water column.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011205256798U CN202446991U (en) | 2011-12-15 | 2011-12-15 | Water oxygenation device for steam oxidation test |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011205256798U CN202446991U (en) | 2011-12-15 | 2011-12-15 | Water oxygenation device for steam oxidation test |
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| Publication Number | Publication Date |
|---|---|
| CN202446991U true CN202446991U (en) | 2012-09-26 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN2011205256798U Expired - Fee Related CN202446991U (en) | 2011-12-15 | 2011-12-15 | Water oxygenation device for steam oxidation test |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104515761A (en) * | 2014-12-20 | 2015-04-15 | 国家海洋局第二海洋研究所 | High-precision optical dissolved oxygen sensor calibration method and device |
| CN109656274A (en) * | 2019-01-24 | 2019-04-19 | 华能国际电力股份有限公司 | A kind of experimental water dissolved oxygen content accuracy-control system and application method |
| CN110657417A (en) * | 2019-10-12 | 2020-01-07 | 象山冰川智能装备有限公司 | Oxygen increasing equipment used in boiling boiler |
| CN113933211A (en) * | 2021-10-14 | 2022-01-14 | 国网安徽省电力有限公司电力科学研究院 | Ternary mixed gas mixing ratio measuring method and device based on gas substitution method |
-
2011
- 2011-12-15 CN CN2011205256798U patent/CN202446991U/en not_active Expired - Fee Related
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104515761A (en) * | 2014-12-20 | 2015-04-15 | 国家海洋局第二海洋研究所 | High-precision optical dissolved oxygen sensor calibration method and device |
| CN104515761B (en) * | 2014-12-20 | 2017-05-17 | 国家海洋局第二海洋研究所 | High-precision optical dissolved oxygen sensor calibration method and device |
| CN109656274A (en) * | 2019-01-24 | 2019-04-19 | 华能国际电力股份有限公司 | A kind of experimental water dissolved oxygen content accuracy-control system and application method |
| CN110657417A (en) * | 2019-10-12 | 2020-01-07 | 象山冰川智能装备有限公司 | Oxygen increasing equipment used in boiling boiler |
| CN113933211A (en) * | 2021-10-14 | 2022-01-14 | 国网安徽省电力有限公司电力科学研究院 | Ternary mixed gas mixing ratio measuring method and device based on gas substitution method |
| CN113933211B (en) * | 2021-10-14 | 2024-03-15 | 国网安徽省电力有限公司电力科学研究院 | Ternary mixed gas mixing ratio measuring method and device based on gas substitution method |
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Legal Events
| Date | Code | Title | Description |
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| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20120926 Termination date: 20191215 |
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| CF01 | Termination of patent right due to non-payment of annual fee |