CN109160566A - A kind of device and its application method for eliminating oxygen in water - Google Patents
A kind of device and its application method for eliminating oxygen in water Download PDFInfo
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- CN109160566A CN109160566A CN201811330574.XA CN201811330574A CN109160566A CN 109160566 A CN109160566 A CN 109160566A CN 201811330574 A CN201811330574 A CN 201811330574A CN 109160566 A CN109160566 A CN 109160566A
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- water
- hydrogen
- oxygen
- eliminating
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- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F1/00—Treatment of water, waste water, or sewage
- C02F1/20—Treatment of water, waste water, or sewage by degassing, i.e. liberation of dissolved gases
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- Life Sciences & Earth Sciences (AREA)
- Hydrology & Water Resources (AREA)
- Engineering & Computer Science (AREA)
- Environmental & Geological Engineering (AREA)
- Water Supply & Treatment (AREA)
- Chemical & Material Sciences (AREA)
- Organic Chemistry (AREA)
- Removal Of Specific Substances (AREA)
- Physical Water Treatments (AREA)
Abstract
The present invention provides a kind of device for eliminating oxygen in water, is vertical pot container or tower；The inside of described device is sequentially arranged gas-phase space, silk screen orifice plate, Catalytic Layer, silk screen orifice plate, packing layer, silk screen orifice plate and Hydrogen distribution device under upper；The bottom of described device is equipped with water inlet, and the lower part of described device is equipped with air inlet；The top of described device is equipped with gas outlet, and the top of described device is equipped with gas outlet.The device and its application method provided by the invention for eliminating oxygen in water, three units in traditional catalytic hydrogenation deoxygenation device are integrated into a unit, are reduced occupied area, are simplified system, reduce cost, performance still meets requirement.
Description
Technical field
The present invention relates to a kind of devices and its application method for eliminating oxygen in water.
Background technique
At normal temperatures and pressures, can be dissolved with a certain amount of oxygen in water, dissolved oxygen concentration is generally 8~10mg/L.In nuclear power
In the ultrapure waters application field such as demineralized water, boiler feedwater and semiconductor of standing, the dissolved oxygen of high concentration can aggravate the corrosion of equipment, from
And shorten the service life of equipment, accident can be caused under serious conditions.Therefore, nuclear power station, boiler and semicon industry strictly limit
Oxygen in water concentration processed, no more than 20 μ g/L, even lower than 10 μ g/L.
Traditional dissolved oxygen minimizing technology has thermal de-aeration, deaeration in condenser, Deadsorbing and oxygen removing, chemical deoxidization etc., but no matter
Which kind of method is all had some limitations due to the defect of itself, is not that the water quality that can make that treated changes and (such as contains
Hydrazine and it is toxic；Increase CO2Content and reduce pH value；Increase the drying surplus of water；Or generate ferrous iron), it is exactly to require a high position
Arrange or take up a large area or it is complicated for operation, operating cost is high.It is generally acknowledged that atmospheric-type thermodynamic deoxidizing effect is relatively stable,
On water quality without influence, but still require that high-order arrangement；A large amount of steam are needed, operating cost is higher.Bayer A.G, which proposes, " to be urged
Change adding hydrogen into resin deoxidation method " --- a kind of reducing agent (such as hydrogen) appropriate is dissolved in water to be processed, is then passed through
Catalytic resin bed, hydrogen oxygen recombination is to realize deoxygenation, especially suitable for the oxygen for going to dissolve in water removal in the production process of ultrapure water.
It is mainly made of units such as gas-liquid static mixer, resin bed reactor, degassing tanks using the device of this method.Gas-liquid static state is mixed
Clutch effect completes hydrogen to bulk water phase mass transfer for hydrogen and pending water to be sufficiently mixed；Filling in resin bed reactor
Catalytic deoxidation resin, the dissolved hydrogen in water reacts generation water with dissolved oxygen under the effect of catalytic deoxidation resin；Degassing tank is used for will
Undissolved hydrogen is separated from water.
Traditional deaerating plant using catalytic hydrogenation method is mainly by gas-liquid static mixer, resin bed reactor, de-
The units such as gas tank composition, takes up a large area, system is more complex, at high cost.
Summary of the invention
In view of the deficiencies of the prior art, the present invention proposes a kind of devices for eliminating oxygen in water.
Solid catalyst evaluating apparatus provided by the invention is vertical pot container or tower；The inside of described device from
Gas-phase space, silk screen orifice plate, Catalytic Layer, silk screen orifice plate, packing layer, silk screen orifice plate and Hydrogen distribution device are sequentially arranged under upper；
The bottom of described device be equipped with water inlet, the lower part of described device, higher than the water inlet position be equipped with air inlet, it is described into
Port is connect with the Hydrogen distribution device；The top of described device is equipped with gas outlet, and the top of described device is lower than the water outlet
The position of mouth is equipped with gas outlet, and the gas outlet is connect with the gas-phase space；It is the gas-phase space, the Catalytic Layer, described
The height ratio of water inlet induction part where packing layer and Hydrogen distribution device is 0.1~0.5:1:0.1~1:0.1~0.5.
Preferably, the Hydrogen distribution device is annulus line.
Preferably, the annulus line is equipped with uniform pore openings or is equipped with nozzle, and the diameter of aperture or nozzle is 1~3mm.
Preferably, described filler layer is have loose bowels ring, Pall ring or structured filling material layer.
Preferably, the Catalytic Layer is filled with deoxidation catalyst, and the deoxidation catalyst uses ion exchange resin conduct
Carrier, precious metal palladium are active component；Palladium content in the deoxidation catalyst is 0.2~3g/L.
Preferably, catalyst charging hole and drain hole is respectively set in the upper and lower part of the Catalytic Layer.
Preferably, the silk screen orifice plate is welded by stainless steel cloth and stainless steel plate, the stainless steel wire mesh
Diameter is 0.1~0.3mm, and the stainless steel plate opening diameter is 5~15mm.
Preferably, the diameter of described device is 100~1500mm.
Another object of the present invention is to, propose a kind of application method of the device of above-mentioned elimination oxygen in water, including
Following steps:
Hydrogen is inputted by the air inlet, and oxygenated water to be processed is inputted by the water inlet, and the water speed rate of oxygenated water is
30~100BV/h, the rate of hydrogen are the 20%~50% of water speed rate；
Hydrogen is flowed up with water cocurrent；
In described filler layer, hydrogen is sufficiently mixed with oxygenated water, and hydrogen is to water phase mass transfer；
In the Catalytic Layer, dissolved hydrogen reacts under deoxidation catalyst effect with dissolved oxygen generates water；And
Water after deoxygenation is discharged by the water outlet, and undissolved hydrogen is discharged by the gas outlet.
Compared with prior art, the invention has the following advantages:
1, the device and its application method provided by the invention for eliminating oxygen in water, traditional catalytic hydrogenation deoxygenation is filled
Three units set are integrated into a unit, are reduced occupied area, are simplified system, reduce cost, performance still meets use
It is required that.
2, it is provided by the invention eliminate oxygen in water device and its application method, can by oxygen in water concentration by
8ppm is down to 20ppb even 10ppb or less.
Detailed description of the invention
Fig. 1 is the schematic diagram for meeting the device of elimination oxygen in water of the preferred embodiment of the present invention.
Specific embodiment
In order to make the foregoing objectives, features and advantages of the present invention clearer and more comprehensible, with reference to the accompanying drawing and specific real
Applying mode, the present invention is described in further detail.
As shown in Figure 1, the device for eliminating oxygen in water using catalytic hydrogenation mode that one embodiment of the invention provides.It should
Gas-liquid static mixer, resin bed reactor, degassing tank are integrated in a device by deaerating plant, reduce space hold, drop
Low equipment manufacturing costs.Device is vertical pot container or tower；Device lower part is water inlet air inlet, and bottom is to be processed contains
Hydrogen inlet is arranged in oxygen water inlet, lower part, and device internal hydrogen distributor is connected with hydrogen inlet, and distributor is annulus line,
Pipeline uniform pore openings or installation nozzle, aperture or nozzle diameter are 1~3mm.；It is packing layer above Hydrogen distribution device, filler is
It has loose bowels ring, Pall ring or structured packing；It is Catalytic Layer above packing layer, loads deoxidation catalyst, deoxidation catalyst uses ion
For exchanger resin as carrier, precious metal palladium is active component, and Palladium Content in Catalyst is 0.2~3g/L resin, Catalytic Layer top
Catalyst charging hole and drain hole is respectively set with lower part；Retain certain gas-phase space above packing layer；Device top side is set
Outlet is set, deaerated water is discharged by the outlet；Hydrogen outlet is arranged in device top, and undissolved hydrogen is discharged by the mouth.On packing layer
Lower two sides are silk screen orifice plate, are also silk screen orifice plate on the upside of Catalytic Layer, and silk screen orifice plate is welded by stainless steel cloth and stainless steel plate
It forms, screen diameter is 0.1~0.3mm, and stainless steel plate opening diameter is 5~15mm.Water inlet induction part in device lower part is filled out
The bed of material, Catalytic Layer, device upper gaseous phase space length relationship be 0.1~0.5:0.1~1:1:0.1~0.5, diameter be 100~
1500mm.Preferred embodiment, assembly dia 100mm, high 2850mm, device lower part intake induction part, packing layer, Catalytic Layer,
Device upper gaseous phase spatial altitude is respectively 300mm, 750mm, 1500mm, 300mm.Hydrogen distribution device is uniformly distributed 5 diameters
1mm circular hole, having a size of Φ 6 × 6mm stainless steel Raschig ring, the interior filling palladium content of Catalytic Layer is catalyzed for 1g/L to be removed the interior filling of packing layer
Oxygen resin, resin particle diameter are 0.6mm, and catalytic deoxidation resin loadings are high 2/3 of Catalytic Layer；Silk screen orifice plate is by aperture
0.3mm stainless steel cloth is welded with stainless steel plate, and stainless steel plate is uniformly arranged 10mm circular hole.
The application method of the device of above-mentioned elimination oxygen in water is as follows:
Hydrogen and oxygenated water to be processed are inputted by device lower part water inlet air inlet, and water speed rate is 30~100BV/h (with catalysis
Agent loadings are standard), hydrogen gas rate is the 20%~50% of water speed rate；Hydrogen is flowed up with water cocurrent；In packing layer,
Hydrogen is sufficiently mixed with water, and hydrogen is to water phase mass transfer；In Catalytic Layer, dissolved hydrogen and dissolved oxygen are anti-under deoxidation catalyst effect
Water should be generated；Water after deoxygenation is discharged by device upper outlet, is discharged for the hydrogen of dissolution by device top exit.
Deoxygenation performance evaluation is carried out using above-mentioned apparatus, condition is as follows: catalyst amount 1L, pressure 1.0MPa, temperature
For room temperature, water flow 70BV/h, hydrogen flowing quantity 1.08L/h, oxygen in water is down to 10ppb by 8ppm.
Compared with prior art, the present embodiment has the advantages that
1, the device and its application method provided in this embodiment for eliminating oxygen in water, by traditional catalytic hydrogenation deoxygenation
Three units in device are integrated into a unit, are reduced occupied area, are simplified system, reduce cost, performance still meets and makes
With requiring.
2, the device and its application method provided in this embodiment for eliminating oxygen in water, can be by oxygen in water concentration
20ppb even 10ppb or less is down to by 8ppm
Those skilled in the art can use different methods to achieve the described function each specific application, but
It is that such implementation should not be considered as beyond the scope of the present invention.
Obviously, those skilled in the art can carry out various modification and variations without departing from spirit of the invention to invention
And range.If in this way, these modifications and changes of the present invention belong to the claims in the present invention and its equivalent technologies range it
Interior, then the invention is also intended to include including these modification and variations.
Claims (9)
1. a kind of device for eliminating oxygen in water, which is characterized in that described device is vertical pot container or tower；The dress
The inside set is sequentially arranged gas-phase space, silk screen orifice plate, Catalytic Layer, silk screen orifice plate, packing layer, silk screen orifice plate and hydrogen under upper
Gas distributor；The bottom of described device be equipped with water inlet, the lower part of described device, higher than the water inlet position be equipped with air inlet
Mouthful, the air inlet is connect with the Hydrogen distribution device；The top of described device is equipped with gas outlet, the top of described device, low
It is equipped with gas outlet in the position of the water outlet, the gas outlet is connect with the gas-phase space；The gas-phase space described is urged
The height ratio for changing the water inlet induction part where layer, described filler layer and Hydrogen distribution device is 0.1~0.5:1:0.1~1:0.1
~0.5.
2. eliminating the device of oxygen in water as described in claim 1, which is characterized in that the Hydrogen distribution device is ring pipe
Road.
3. eliminating the device of oxygen in water as claimed in claim 2, which is characterized in that the annulus line is equipped with uniform
Aperture is equipped with nozzle, and the diameter of aperture or nozzle is 1~3mm.
4. eliminating the device of oxygen in water as described in claim 1, which is characterized in that described filler layer is have loose bowels ring, Bao
That ring or structured filling material layer.
5. eliminating the device of oxygen in water as described in claim 1, which is characterized in that the Catalytic Layer is filled with deoxygenation and urges
Agent, for the deoxidation catalyst using ion exchange resin as carrier, precious metal palladium is active component；The deoxidation catalyst
In palladium content be 0.2~3g/L.
6. eliminating the device of oxygen in water as claimed in claim 5, which is characterized in that the upper and lower part of the Catalytic Layer
Catalyst charging hole and drain hole is respectively set.
7. eliminating the device of oxygen in water as described in claim 1, which is characterized in that the silk screen orifice plate is by stainless steel wire
Net and stainless steel plate are welded, and the stainless steel wire screen distance is 0.1~0.3mm, the stainless steel plate opening diameter
For 5~15mm.
8. as described in claim 1 eliminate oxygen in water device, which is characterized in that the diameter of described device be 100~
1500mm。
9. a kind of application method of the device of any of claims 1-8 for eliminating oxygen in water, which is characterized in that
Include the following steps:
Hydrogen is inputted by the air inlet, and oxygenated water to be processed is inputted by the water inlet, and the water speed rate of oxygenated water is 30~
100BV/h, the rate of hydrogen are the 20%~50% of water speed rate；
Hydrogen is flowed up with water cocurrent；
In described filler layer, hydrogen is sufficiently mixed with oxygenated water, and hydrogen is to water phase mass transfer；
In the Catalytic Layer, dissolved hydrogen reacts under deoxidation catalyst effect with dissolved oxygen generates water；And
Water after deoxygenation is discharged by the water outlet, and undissolved hydrogen is discharged by the gas outlet.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811330574.XA CN109160566A (en) | 2018-11-09 | 2018-11-09 | A kind of device and its application method for eliminating oxygen in water |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811330574.XA CN109160566A (en) | 2018-11-09 | 2018-11-09 | A kind of device and its application method for eliminating oxygen in water |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN109160566A true CN109160566A (en) | 2019-01-08 |
Family
ID=64876861
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201811330574.XA Pending CN109160566A (en) | 2018-11-09 | 2018-11-09 | A kind of device and its application method for eliminating oxygen in water |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114262655A (en) * | 2021-12-27 | 2022-04-01 | 东北农业大学 | Circulating sealed hydrogenation bioreactor |
| NO20220664A1 (en) * | 2022-06-10 | 2023-12-11 | Enerin As | Vacuum catalytic feedwater treatment system |
Citations (4)
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|---|---|---|---|---|
| WO1998031635A1 (en) * | 1997-01-21 | 1998-07-23 | Elf Exploration Production | Electrocatalytic method for the deoxygenating of sea water and device for its implementation |
| JP2001129305A (en) * | 1999-11-09 | 2001-05-15 | Kurita Water Ind Ltd | Deoxidation and decarbonation apparatus |
| CN1699195A (en) * | 2004-05-20 | 2005-11-23 | 哈尔滨工业大学 | Hydrogenation and deoxidization method for palladium ion type catalytic resin |
| CN1962481A (en) * | 2005-11-10 | 2007-05-16 | 王小军 | Pressurized catalysis biological contact oxidation tower (device) |
-
2018
- 2018-11-09 CN CN201811330574.XA patent/CN109160566A/en active Pending
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO1998031635A1 (en) * | 1997-01-21 | 1998-07-23 | Elf Exploration Production | Electrocatalytic method for the deoxygenating of sea water and device for its implementation |
| JP2001129305A (en) * | 1999-11-09 | 2001-05-15 | Kurita Water Ind Ltd | Deoxidation and decarbonation apparatus |
| CN1699195A (en) * | 2004-05-20 | 2005-11-23 | 哈尔滨工业大学 | Hydrogenation and deoxidization method for palladium ion type catalytic resin |
| CN1962481A (en) * | 2005-11-10 | 2007-05-16 | 王小军 | Pressurized catalysis biological contact oxidation tower (device) |
Non-Patent Citations (1)
| Title |
|---|
| 黄进等: "锅炉给水除氧技术新进展", 《化学工程师》 * |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114262655A (en) * | 2021-12-27 | 2022-04-01 | 东北农业大学 | Circulating sealed hydrogenation bioreactor |
| NO20220664A1 (en) * | 2022-06-10 | 2023-12-11 | Enerin As | Vacuum catalytic feedwater treatment system |
| WO2023239243A1 (en) * | 2022-06-10 | 2023-12-14 | Enerin As | Vacuum catalytic feedwater treatment for dissolving oxygen in a flow of feedwater |
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Application publication date: 20190108 |