CN109179728A - A kind of deoxidation air film system for plant gas demineralized water dilatation - Google Patents
A kind of deoxidation air film system for plant gas demineralized water dilatation Download PDFInfo
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- CN109179728A CN109179728A CN201811306322.3A CN201811306322A CN109179728A CN 109179728 A CN109179728 A CN 109179728A CN 201811306322 A CN201811306322 A CN 201811306322A CN 109179728 A CN109179728 A CN 109179728A
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- Prior art keywords
- air film
- deoxidation
- deoxidation air
- road
- dilatation
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- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 title claims abstract description 69
- IJGRMHOSHXDMSA-UHFFFAOYSA-N Atomic nitrogen Chemical compound N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 claims abstract description 86
- 239000007789 gas Substances 0.000 claims abstract description 54
- 229910052757 nitrogen Inorganic materials 0.000 claims abstract description 31
- 229910001873 dinitrogen Inorganic materials 0.000 claims abstract description 27
- 238000003860 storage Methods 0.000 claims description 15
- 239000012510 hollow fiber Substances 0.000 claims description 6
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 claims description 4
- 239000003463 adsorbent Substances 0.000 claims description 4
- 229910052799 carbon Inorganic materials 0.000 claims description 4
- 230000008676 import Effects 0.000 claims description 4
- 239000002808 molecular sieve Substances 0.000 claims description 4
- URGAHOPLAPQHLN-UHFFFAOYSA-N sodium aluminosilicate Chemical compound [Na+].[Al+3].[O-][Si]([O-])=O.[O-][Si]([O-])=O URGAHOPLAPQHLN-UHFFFAOYSA-N 0.000 claims description 4
- 235000014171 carbonated beverage Nutrition 0.000 claims 1
- 238000000034 method Methods 0.000 abstract description 12
- 238000010926 purge Methods 0.000 abstract description 9
- 239000000126 substance Substances 0.000 abstract description 6
- 238000011033 desalting Methods 0.000 abstract description 4
- 230000000694 effects Effects 0.000 abstract description 3
- 238000012423 maintenance Methods 0.000 abstract description 3
- 230000008569 process Effects 0.000 abstract description 3
- 238000006467 substitution reaction Methods 0.000 abstract 1
- 238000001914 filtration Methods 0.000 description 14
- 229910001220 stainless steel Inorganic materials 0.000 description 13
- 239000010935 stainless steel Substances 0.000 description 13
- 239000007788 liquid Substances 0.000 description 11
- 239000000463 material Substances 0.000 description 11
- 239000001301 oxygen Substances 0.000 description 10
- 229910052760 oxygen Inorganic materials 0.000 description 10
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 description 9
- 238000006392 deoxygenation reaction Methods 0.000 description 8
- 230000002000 scavenging effect Effects 0.000 description 8
- 235000008733 Citrus aurantifolia Nutrition 0.000 description 5
- 235000011941 Tilia x europaea Nutrition 0.000 description 5
- 238000010438 heat treatment Methods 0.000 description 5
- 239000004571 lime Substances 0.000 description 5
- 239000007791 liquid phase Substances 0.000 description 5
- 230000000903 blocking effect Effects 0.000 description 4
- 235000013305 food Nutrition 0.000 description 4
- 238000005273 aeration Methods 0.000 description 3
- 239000003814 drug Substances 0.000 description 3
- 229940123973 Oxygen scavenger Drugs 0.000 description 2
- 229910000831 Steel Inorganic materials 0.000 description 2
- 230000008901 benefit Effects 0.000 description 2
- 238000002485 combustion reaction Methods 0.000 description 2
- 239000000498 cooling water Substances 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 238000002955 isolation Methods 0.000 description 2
- 230000007774 longterm Effects 0.000 description 2
- 238000000746 purification Methods 0.000 description 2
- 238000011084 recovery Methods 0.000 description 2
- 230000001105 regulatory effect Effects 0.000 description 2
- 239000010959 steel Substances 0.000 description 2
- 230000009466 transformation Effects 0.000 description 2
- MYMOFIZGZYHOMD-UHFFFAOYSA-N Dioxygen Chemical compound O=O MYMOFIZGZYHOMD-UHFFFAOYSA-N 0.000 description 1
- UFHFLCQGNIYNRP-UHFFFAOYSA-N Hydrogen Chemical compound [H][H] UFHFLCQGNIYNRP-UHFFFAOYSA-N 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 239000003153 chemical reaction reagent Substances 0.000 description 1
- 238000004140 cleaning Methods 0.000 description 1
- 230000007797 corrosion Effects 0.000 description 1
- 238000005260 corrosion Methods 0.000 description 1
- 238000010612 desalination reaction Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 229910001882 dioxygen Inorganic materials 0.000 description 1
- 238000009826 distribution Methods 0.000 description 1
- 229940079593 drug Drugs 0.000 description 1
- 238000004134 energy conservation Methods 0.000 description 1
- 238000005265 energy consumption Methods 0.000 description 1
- 239000000835 fiber Substances 0.000 description 1
- 239000001257 hydrogen Substances 0.000 description 1
- 229910052739 hydrogen Inorganic materials 0.000 description 1
- 230000006872 improvement Effects 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 230000010354 integration Effects 0.000 description 1
- 239000012528 membrane Substances 0.000 description 1
- 239000000203 mixture Substances 0.000 description 1
- 238000003825 pressing Methods 0.000 description 1
- 230000009467 reduction Effects 0.000 description 1
- 238000000926 separation method Methods 0.000 description 1
Classifications
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F9/00—Multistage treatment of water, waste water or sewage
-
- 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
- C02F1/001—Processes for the treatment of water whereby the filtration technique is of importance
-
- 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
-
- 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
- C02F1/44—Treatment of water, waste water, or sewage by dialysis, osmosis or reverse osmosis
Landscapes
- 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)
- Degasification And Air Bubble Elimination (AREA)
- Separation Using Semi-Permeable Membranes (AREA)
Abstract
The present invention relates to plant gas desalting water treatment system, especially a kind of deoxidation air film system for plant gas demineralized water dilatation.Deoxidation air film cartridge filter (1) is connected with several groups deoxidation air film component (2) by the road, deoxidation air film component (2) is connected with steam-water separator (5) by the road, and steam-water separator (5) is connected with vacuum pump (6) by the road；Deoxidation air film component (2) is also connected with air filter (4) by the road, and air filter (4) is connected with nitrogen gas generating device (3) by the road.The present invention can be realized the traditional oxygen-eliminating device of substitution, and ensure to be discharged the process system of no chemical residues, vacuumize+high-purity nitrogen purging by way of achieve the effect that high deoxidation, this equipment is arranged indoors in a manner of the integrated apparatus of frame in groups by collecting, space is saved, Operation and Maintenance is convenient.
Description
Technical field
It is especially a kind of for the de- of plant gas demineralized water dilatation the present invention relates to plant gas desalting water treatment system
Oxygen membranous system.
Background technique
Certain power & light company expands heat supply technological transformation project water treatment system capacity-expansion project, between extending combustion engine waterwheel, newly
Increase " full embrane method " equipment, and for long term planning reserve " full embrane method " Equipment Foundations, desalting water treatment system support sweet-water tank and
Pipe-line system.This project heating steam is used for industrial park food service industry, therefore requires height to steam quality, cannot contain chemicals
Matter.In the prior art, oxygen-eliminating device is classified: thermal de-aeration (physics deoxygenation), chemical deoxidization (dosing deoxygenation), deaeration in condenser.Deoxygenation
Device is to avoid boiler oxygen corrosion as the equipment of dissolved oxygen contained in removal boiler feedwater.What domestic application was most wide at present is
Thermal de-aeration, but a part of heating flash steam can be emptied with the spilling of dissolved oxygen, and partial heat is caused to lose, automatic control fortune
Row is complicated, and space and arrangement require height, and high failure rate, consumable steam accounts for 15% of boiler load or so.Dosing deoxygenation is not suitable for
This project is difficult to reach food factory's requirement food-grade oxygen scavenger, and medicament is costly.Deaeration in condenser is a kind of medium temperature deoxygenation
Technology, generally be lower than 50 DEG C at a temperature of carry out (deoxygenation principle is: content of oxygen dissolved in water and with pressure reduction and drop
It is low).Therefore it is badly in need of a kind of deoxidation air film system suitable for this engineering, to solve present in all kinds of oxygen-eliminating devices in the prior art
The problem of.
Summary of the invention
The object of the present invention is to provide a kind of deoxidation air film system for plant gas demineralized water dilatation, Neng Goushi
Traditional oxygen-eliminating device is now substituted, and ensures to be discharged the process system of no chemical residues, by vacuumizing+the side of high-purity nitrogen purging
Formula achievees the effect that high deoxidation, this equipment is arranged indoors in a manner of the integrated apparatus of frame in groups by collecting, and saves space, operation
Easy to maintain.
In order to solve the above technical problems, the present invention adopts the following technical scheme that:
A kind of deoxidation air film system for plant gas demineralized water dilatation, the deoxidation air film cartridge filter is by the road
It is connected with several groups deoxidation air film component, the deoxidation air film component is connected with steam-water separator, the steam-water separation by the road
Device is connected with vacuum pump by the road；The deoxidation air film component is also connected with air filter, the air filter by the road
It is connected with nitrogen gas generating device by the road.Wherein the filtering accuracy of filter core is 1 μm in deoxidation air film cartridge filter.Deoxidation air film
Cartridge filter filtering velocity is not more than 10m3/(m2.h) (in terms of cartridge surface product).Deoxidation air film cartridge filter ontology material is
S30408 stainless steel.Wherein the connecting line between each device uses stainless steel material, specifically, using S30408 stainless steel,
Junction ensures that this system does not generate gas leak phenomenon, especially inlet side, and Inlet and outlet water main pipe connecting line flow velocity is not more than
1.5m/s.Before liquid enters deoxidation air film component, it is necessary to rinse all connecting lines, then empty；Vacuum pump and scavenging
(nitrogen gas generating device is purged) must always maintain a normally open, until deoxidation air film component is emptied completely liquid.
It is previously described for the deoxidation air film system of plant gas demineralized water dilatation, the nitrogen gas generating device includes nitrogen hair
Raw device and nitrogen storage tank, the nitrogen gas generator are connected with nitrogen storage tank by the road, and the nitrogen storage tank connects by the road
It is connected to air filter.
Be previously described for the deoxidation air film system of plant gas demineralized water dilatation, the air filter by the road with every group
The connection of deoxidation air film modules in parallel；The deoxidation air film cartridge filter also connects with every group of deoxidation air film modules in parallel by the road
It connects.
It is previously described for the deoxidation air film system of plant gas demineralized water dilatation, the deoxidation air film component water inlet O2Content
< 14mg/L (5 DEG C)；Deoxidation air film component is discharged O230 μ g/L of content <, specifically, design water outlet O210 μ g/L (5 of content <
DEG C, 120m3/h)；30 μ g/L of < (5 DEG C, 200m3/h).Deoxidation air film assembly property guarantee value, specifically, power output: 120m3/h
(20℃)；The rate of recovery: 100%.
It is previously described for the deoxidation air film system of plant gas demineralized water dilatation, the deoxidation air film component is by deoxidation air film
Composition, wherein the fenestra of deoxidation air film is 0.03um, can only then be passed through by various gas molecules, hydrone due to surface tension
It will not accumulate not and in film wire.
It is previously described for the deoxidation air film system of plant gas demineralized water dilatation, the film wire in the deoxidation air film is using drawing
The hollow fiber film thread of method purification is stretched, the internal diameter of the hollow fiber film thread is 200um, and outer diameter 300um, the film wire is using PP
Material, hydrophobicity are strong.
It is previously described for the deoxidation air film system of plant gas demineralized water dilatation, the outlet of every group of deoxidation air film component
Isolating door is installed on pipeline, isolating door is also installed in the inlet ductwork of every group of deoxidation air film component.To more independent films
Deoxidation air film component that block is installed in parallel guarantees that each film block assignment of traffic is uniform, the inlet ductwork of each deoxidation air film component with go out
Be equipped with corresponding isolating door on mouthful pipeline so that when any deoxidation air film component operation failure by isolating door progress system every
From the operation without influencing whole system.
It is previously described for the deoxidation air film system of plant gas demineralized water dilatation, the vacuum pump is water-ring vacuum pump.
Wherein vacuum pump is arranged in a group frame minimum point, is conducive to lime set emptying, prevents blocking vacuum line, influences vacuum degree.
It is previously described for the deoxidation air film system of plant gas demineralized water dilatation, the adsorbent in the nitrogen gas generating device
For import carbon molecular sieve.
Compared with prior art, the invention has the beneficial effects that:
1, thermal loss is few, and structure is simple, and Operation and Maintenance is convenient, and failure rate is low, and the present invention is to collect the integration of frame in groups
Device mode is arranged indoors, and space is saved；
2, vacuumize+high-purity nitrogen purging by way of reach high deoxidation, deoxidation effect is good, and steam quality is high,
It is discharged no chemical residual；
3, working environment is lower to temperature requirement；
Specifically, advantage see the table below:
| Serial number | Characteristic | Advantage |
| 1 | Removal efficiency is high | Removal rate > 95% produces water oxygen Gas content < 1ppm |
| 2 | Chemical reagent zero consumes | Drug is not needed to add |
| 3 | Simplification of flowsheet reduces operating cost | Steam heating is not needed |
| 4 | Vacuum+scavenging process efficiency is high | Operation energy consumption is low, energy conservation |
| 5 | Totally closed operation | Technique cleaning is reliable, and product water will not be secondary polluted |
| 6 | Equipment design, operation is simple and reliable for installation | Operation and maintenance cost is low |
| 7 | Space utilization rate is high | The space 60-80% can be saved in most of project, do not need aerial setting |
| 8 | Modularized design | Deoxidation air film component is capable of the processing capacity of quickly and easily expansion system |
Detailed description of the invention
Fig. 1 is structural schematic diagram of the invention.
The meaning of appended drawing reference: 1- deoxidation air film cartridge filter, 2- deoxidation air film component, 3- nitrogen gas generating device,
301- nitrogen gas generator, 302- nitrogen storage tank, 4- air filter, 5- steam-water separator, 6- vacuum pump.
The present invention is further illustrated with reference to the accompanying drawings and detailed description.
Specific embodiment
The embodiment of the present invention 1: expand as shown in Figure 1, certain Thermal Power Co., Ltd expands heat supply technological transformation project water treatment system
Hold improvement project.Between extending 9F combustion engine waterwheel, a series of 120m are increased newly3" full embrane method " equipment of/h, and it is pre- for long term planning
Stay two series 120m3" full embrane method " Equipment Foundations of/h, desalting water treatment system support sweet-water tank and pipe-line system.This project
Heating steam is used for industrial park food service industry, therefore requires height to steam quality, cannot contain chemical substance.Domestic application at present
Most wide is thermal de-aeration, but a part of heating flash steam can be emptied with the spilling of dissolved oxygen, and partial heat is caused to damage
It loses, autocontrol operation is complicated, and space and arrangement require height, and high failure rate, consumable steam accounts for 15% of boiler load or so.Dosing removes
Oxygen is not suitable for this project, is difficult to reach food factory's requirement food-grade oxygen scavenger, medicament is costly.Deaeration in condenser is a kind of
Medium temperature deoxygenation technology, generally carries out that (deoxygenation principle is: content of oxygen dissolved in water and with the drop of pressure at a temperature of being lower than 50 DEG C
It is low and reduce).Therefore it is badly in need of a kind of deoxidation air film system suitable for this engineering, to solve all kinds of oxygen-eliminating devices in the prior art
The problems of.
1 × 120m is arranged in the present invention3The deoxidation air film system of/h power output, using nitrogen purging+vacuum suction set plus mode.
Every set deoxidation air film system uses vacuum pump 1, deoxidation air film cartridge filter 1 (1 μm of filtering accuracy), nitrogen gas generator 1
Set and 1 set of nitrogen storage tank etc..The deoxidation air film cartridge filter 1 is connected with several groups deoxidation air film component 2, institute by the road
It states deoxidation air film component 2 and is connected with steam-water separator 5 by the road, the steam-water separator 5 is connected with vacuum pump 6 by the road；Institute
It states deoxidation air film component 2 and is also connected with air filter 4 by the road, the air filter 4 is connected with nitrogen by the road
Device 3.Wherein the filtering accuracy of filter core is 1 μm in deoxidation air film cartridge filter 1；1 filtering velocity of deoxidation air film cartridge filter is not
Greater than 10m3/(m2.h) (in terms of cartridge surface product).1 ontology material of deoxidation air film cartridge filter is S30408 stainless steel.It is described
Adsorbent in nitrogen gas generating device 3 is import carbon molecular sieve.The vacuum pump 6 is water-ring vacuum pump.Wherein by vacuum pump 6
Setting is conducive to lime set emptying in a group frame minimum point, prevents blocking vacuum line, influences vacuum degree.Wherein between each device
Connecting line uses stainless steel material, specifically, it is existing that junction ensures that this system does not generate gas leakage using S30408 stainless steel
As, especially inlet side, and Inlet and outlet water main pipe connecting line flow velocity is not more than 1.5m/s.Enter deoxidation air film component 2 in liquid
Before, it is necessary to rinse all connecting lines, then empty；Vacuum pump 6 and scavenging (nitrogen gas generating device 3 is purged) must be total
Be to maintain it is normally opened, until deoxidation air film component 2 is emptied completely liquid.Further, the nitrogen gas generating device 3 is sent out including nitrogen
Raw device 301 and nitrogen storage tank 302, the nitrogen gas generator 301 are connected with nitrogen storage tank 302, the nitrogen storage by the road
It deposits tank 302 and is connected with air filter 4 by the road.
The air filter 4 is connected in parallel with every group of deoxidation air film component 2 by the road；The deoxidation air film security personnel filtering
Device 1 is also connected in parallel with every group of deoxidation air film component 2 by the road.The water inlet of deoxidation air film component 2 O2Content < 14mg/L (5
℃)；Deoxidation air film component 2 is discharged O230 μ g/L of content <, specifically, design water outlet O210 μ g/L of content < (5 DEG C, 120m3/
h)；30 μ g/L of < (5 DEG C, 200m3/h).2 performance guarantee value of deoxidation air film component, specifically, power output: 120m3/h(20℃)；It returns
Yield: 100%.The deoxidation air film component 2 is made of deoxidation air film, and wherein the fenestra of deoxidation air film is 0.03um, Zhi Nengtong
Various gas molecules are crossed, hydrone is since surface tension does not pass through then and will not accumulate in film wire.In the deoxidation air film
Film wire use the hollow fiber film thread of pulling method purification, the internal diameter of the hollow fiber film thread is 200um, outer diameter 300um,
The film wire uses PP material, and hydrophobicity is strong.Specifically, being equipped with isolation on the export pipeline of every group of deoxidation air film component 2
, isolating door is also installed in the inlet ductwork of every group of deoxidation air film component 2.The deoxidation that more independent film blocks are installed in parallel
Air film component 2 guarantees that each film block assignment of traffic is uniform, is equipped in the inlet ductwork and export pipeline of each deoxidation air film component 2
Corresponding isolating door, so that whole without influencing by isolating door progress isolation of system when any deoxidation air film 2 job failure of component
The operation of a system.
Embodiment 2: as shown in Figure 1, a kind of deoxidation air film system for plant gas demineralized water dilatation, the deoxidation gas
One end of film cartridge filter 1 is connected with desalination water pump main water outlet pipe by the road, the deoxidation air film cartridge filter 1 it is another
End is connected with several groups deoxidation air film component 2 by the road, and the deoxidation air film component 2 is connected with steam-water separator 5, institute by the road
It states steam-water separator 5 and is connected with vacuum pump 6 by the road.The vacuum pump 6 is connected with three groups of connecting lines, closes wherein being connected to all the way
Formula cooling water return pipe is connected to enclosed cooling water all the way and carrys out water pipe, and there are also intake-gas all the way to arrange to atmosphere.
The deoxidation air film component 2 is also connected with air filter 4 by the road, and the air filter 4 connects by the road
There is nitrogen gas generating device 3.Wherein the filtering accuracy of filter core is 1 μm in deoxidation air film cartridge filter 1；The security personnel's filtering of deoxidation air film
1 filtering velocity of device is not more than 10m3/(m2.h) (in terms of cartridge surface product).1 ontology material of deoxidation air film cartridge filter be S30408 not
Become rusty steel.Wherein the connecting line between each device uses stainless steel material, specifically, using S30408 stainless steel, junction is true
The system that breaks even does not generate gas leak phenomenon, especially inlet side, and Inlet and outlet water main pipe connecting line flow velocity is not more than 1.5m/s.In liquid
Body enters before deoxidation air film component 2, it is necessary to rinse all connecting lines, then empty；(nitrogen occurs for vacuum pump 6 and scavenging
Device 3 is purged) it must always maintain a normally open, until deoxidation air film component 2 is emptied completely liquid.The nitrogen gas generating device
3 include nitrogen gas generator 301 and nitrogen storage tank 302, and the compressed air of the air reservoir enters nitrogen hair by the road
Raw device 301, the other end of the nitrogen gas generator 301 are connected with nitrogen storage tank 302, the nitrogen storage tank 302 by the road
It is connected with air filter 4 by the road.
(1) deoxidation air film system (including deoxidation air film cartridge filter, water-ring vacuum pump, nitrogen gas generator and nitrogen
Holding vessel etc.)
(2) deoxidation air film cartridge filter (exhaust valve containing blowdown)
(3) water-ring vacuum pump
The design work pressure of vacuum pump is greater than the maximal work pressure of vacuum pump, and type selecting is also able to satisfy following operating condition:
Absolute vacuum degree: 50mbar, volume flow: >=490m3/hr
Absolute vacuum degree: 60mbar, volume flow: >=370m3/hr
Absolute vacuum degree: 70mbar, volume flow: >=300m3/hr
(4) nitrogen gas generating device (complete set of equipments) uses import carbon molecular sieve for adsorbent
Embodiment 3: as shown in Figure 1, a kind of deoxidation air film system for plant gas demineralized water dilatation, the deoxidation gas
Film cartridge filter 1 is connected with several groups deoxidation air film component 2 by the road, and the deoxidation air film component 2 is connected with vapour by the road
Separator 5, the steam-water separator 5 are connected with vacuum pump 6 by the road；The deoxidation air film component 2 is also connected with by the road
Air filter 4, the air filter 4 are connected with nitrogen gas generating device 3 by the road.Wherein deoxidation air film cartridge filter 1
The filtering accuracy of middle filter core is 1 μm；1 filtering velocity of deoxidation air film cartridge filter is not more than 10m3/(m2.h) (with cartridge surface product
Meter).1 ontology material of deoxidation air film cartridge filter is S30408 stainless steel.Wherein the connecting line between each device is not using
Become rusty Steel material, specifically, junction ensures that this system does not generate gas leak phenomenon, especially inlet side using S30408 stainless steel,
And Inlet and outlet water main pipe connecting line flow velocity is not more than 1.5m/s.Before liquid enters deoxidation air film component 2, it is necessary to rinse all
Then connecting line empties；Vacuum pump 6 and scavenging (nitrogen gas generating device 3 is purged) must be maintained a normally open always, until de-
Oxygen membrane module 2 is emptied completely liquid.
Specifically, the vacuum pump 6 is water-ring vacuum pump.Wherein vacuum pump 6 is arranged in a group frame minimum point, is conducive to
Lime set emptying prevents blocking vacuum line, influences vacuum degree.
Vacuum pump is necessarily placed at a group frame minimum point, is conducive to lime set emptying, prevents blocking vacuum line, influences vacuum
Degree；
1. setting scavenging inlet gas pressure is lower than 1psig (0.07barg) by adjusting gas inlet pressure regulating valve；
2. setting the scavenging flow of suggestion, high pure nitrogen scavenging+vacuum combination mode by regulating gas inlet adjustment valve
Under, the swept volume of nitrogen is 0.5~1scfm (0.8~1.6Nm3/hr)；
3. opening vacuum pump, by control valve, vacuum degree when according to design selection sets vacuum degree；If vacuum
There is lime set on the inside of line or fiber, can be dried up within 5 minutes by purging~40psi purge gas；
4. gas and vacuum port not close, these openings can guarantee safety vent, prevent deoxidation air film component internal
Build pressure；
5. introducing water into system slowly, it is ensured that it is maximum that water inlet pressure and water flow do not exceed deoxidation air film component
Operation limitation, maximum flow rate 91m3/hr(400gpm)；
6. reaching requirement of system design by adjusting corresponding inlet valve come the flow velocity and pressure for adjusting water；
7. the film wire transmembrane pressure in deoxidation air film component should not 150psid (10.3barg)；Deoxidation air film component 2
PVC housing pressure does not exceed 120psig (8.3barg).
By solving above-mentioned technical problem, so that the deoxidation air film system for the dilatation of plant gas demineralized water in the present invention
System performance guarantee value
1) it contributes: 120m3/h(20℃)
2) rate of recovery: 100%
Every set deoxidation air film system uses water-ring vacuum pump 1, (1 μ of filtering accuracy of deoxidation air film cartridge filter 1
M), 1 set of nitrogen gas generator and 1 set of nitrogen storage tank etc..Deoxidation air film cartridge filter, filtering velocity are not more than 10m3/(m2.h) (with
Cartridge surface product meter).Deoxidation air film cartridge filter ontology material is S30408 stainless steel, and filter core selects imported product, filtering
Precision is 1 μm.Deoxidation air film component water supply and the unified consideration uniformity of water distribution of water outlet.Deoxidation air film component inlet and outlet pipeline is adopted
With S30408 stainless steel；Compressed air pipe also uses S30408 stainless steel.
The working principle of deoxidation air film: the gas flow dissolved in liquid with than gas on liquid gas interface the gas compartment
It divides proportional.When reducing the concentration of dissolved gas above the pressure and liquid phase of liquid surface, it can push in liquid phase
The evolution of the dissolved gas in face, vacuum degree is lower, the concentration of dissolved gas above liquid phase is lower, is more conducive to solution gas in liquid phase
Bulk concentration is lower.Therefore we are preferred needs to reduce liquid phase surface pressing using vacuumizing, and will escape out using gas purging
It is the partial pressure for reducing oxygen that gas, which is blown away, and two techniques combine simultaneously can reach optimum efficiency.Gas is not fully wanted
Using nitrogen, using other gases not readily dissolved in water, 99.99% nitrogen and hydrogen may serve to purge, but
Since nitrogen is that factory is easy to get, economy is strong, and safety is good, therefore selects nitrogen as purge gas.
Claims (9)
1. a kind of deoxidation air film system for plant gas demineralized water dilatation, which is characterized in that the deoxidation air film was ensured public security
Filter (1) is connected with several groups deoxidation air film component (2) by the road, and the deoxidation air film component (2) is connected with carbonated drink by the road
Separator (5), the steam-water separator (5) are connected with vacuum pump (6) by the road；The deoxidation air film component (2) is also by the road
It is connected with air filter (4), the air filter (4) is connected with nitrogen gas generating device (3) by the road.
2. the deoxidation air film system according to claim 1 for the dilatation of plant gas demineralized water, which is characterized in that described
Nitrogen gas generating device (3) includes nitrogen gas generator (301) and nitrogen storage tank (302), and the nitrogen gas generator (301) is by the road
It is connected with nitrogen storage tank (302), the nitrogen storage tank (302) is connected with air filter (4) by the road.
3. the deoxidation air film system according to claim 1 for the dilatation of plant gas demineralized water, which is characterized in that described
Air filter (4) is connected in parallel with every group of deoxidation air film component (2) by the road；The deoxidation air film cartridge filter (1)
It is connected in parallel by the road with every group of deoxidation air film component (2).
4. the deoxidation air film system according to claim 1 for the dilatation of plant gas demineralized water, which is characterized in that described
Deoxidation air film component (2) water inlet O2Content < 14mg/L, deoxidation air film component (2) are discharged O230 μ g/L of content <.
5. the deoxidation air film system according to claim 4 for the dilatation of plant gas demineralized water, which is characterized in that described
Deoxidation air film component (2) is made of deoxidation air film, and wherein the fenestra of deoxidation air film is 0.03um.
6. the deoxidation air film system according to claim 5 for the dilatation of plant gas demineralized water, which is characterized in that described
Film wire in deoxidation air film uses hollow fiber film thread, and the internal diameter of the hollow fiber film thread is 200um, outer diameter 300um.
7. the deoxidation air film system according to claim 3 for the dilatation of plant gas demineralized water, which is characterized in that described
Isolating door, the inlet ductwork of every group of deoxidation air film component (2) are installed on the export pipeline of every group of deoxidation air film component (2)
On isolating door is also installed.
8. the deoxidation air film system according to claim 1 for the dilatation of plant gas demineralized water, which is characterized in that described
Vacuum pump (6) is water-ring vacuum pump.
9. the deoxidation air film system according to claim 1 for the dilatation of plant gas demineralized water, which is characterized in that described
Adsorbent in nitrogen gas generating device (3) is import carbon molecular sieve.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201811306322.3A CN109179728A (en) | 2018-11-05 | 2018-11-05 | A kind of deoxidation air film system for plant gas demineralized water dilatation |
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| CN201811306322.3A CN109179728A (en) | 2018-11-05 | 2018-11-05 | A kind of deoxidation air film system for plant gas demineralized water dilatation |
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| CN109179728A true CN109179728A (en) | 2019-01-11 |
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| CN201811306322.3A Pending CN109179728A (en) | 2018-11-05 | 2018-11-05 | A kind of deoxidation air film system for plant gas demineralized water dilatation |
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| WO2022160667A1 (en) * | 2021-01-26 | 2022-08-04 | 上海优华系统集成技术股份有限公司 | Zero steam consumption deaeration system |
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