Removal of dissolved oxygen in the water, water for the boiler or other equipment to prevent corrosion and ensure their safe and economic operation of great significance. For years, people have been the traditional method of oxygen due to the effects of harsh external conditions less than ideal oxygen effect, or not to run the troubled economy. The company introduced the patented technology, developed at room temperature filter deaerator, which overcomes the shortcomings of traditional methods of oxygen removal from the market three years ago, proved that the dissolved oxygen content of water deaerator can guarantee 0.05mg / L, has become a low-pressure boiler replacement oxygen equipment products.
Normal oxygen analysis method
(一) hermal oxygen
Thermal oxygen is a relatively mature technology to achieve the ideal effect of oxygen, but in actual operation, industrial boilers often complex due to changes in heat load and meet the level of management operations, so that the actual effect of oxygen by the great impact. In addition, the thermal oxygen must also arranged a bulky high water tank, resulting in increased investment in infrastructure, design and installation operation is not convenient, since the gas consumption and large, 18-20% is generally effective for reducing the amount of steam, so they had to increase large boiler capacity, footprint and investment. Industrial boiler water temperature is more designed for the 20-50 ℃, the use of thermal deaerator boiler economizer, inlet temperature of 105 ℃, which for the safe operation of the economizer is very negative, so for industrial boilers, thermal oxygen there are many problems.
(二)Vacuum deaerator
Temperature and oxygen are in a vacuum deaerator, oxygen and heat decreased more than the heating temperature, the thermal oxygen most of the shortcomings still exist. High vacuum oxygen requirements of the position even more than the thermal oxygen, low layout should have a certain height difference, but also for the operation and management technology, jet pumps, pressure booster pumps or pressure requirements of key components such as high, especially vacuum is difficult to guarantee, but also increase the heat exchanger and circulating pump, so the infrastructure investment, system complexity, design, installation operation and so convenient.
(三) Oxygen redox resin
This method can be room temperature, oxygen, can also be low arrangement, but to the use of this toxic substance hydrazine regeneration, oxygen produced by this method not suitable for steam and hot water and food and human contact, but also easy to mistake for another use cause harm to the operator, direct dosing of hydrazine than the high cost and large infrastructure investment, operation complexity, it is difficult to promote in the industrial boiler.
(四)Sodium sulfite oxygen
This method of infrastructure investment, operation is simple, but the oxygen effect is not reliable, increasing the salinity of the water boiler, had to increase the sewage, causing heat and water loss, but also increases the scale of calcium sulfate produced by the boiler possibilities, and therefore from an economic and technical point of view, this method is far from ideal
(五) Resolution oxygen
Oxygen analysis technology has been evolving recently made improvements to the deoxidizer, the new analysis, also known as oxygen, this method is low oxygen at room temperature, but also the highest point of the general equipment of 6 meters, but also heating device, oxygen pumps, thermostats and other complex systems, the operating cost is also high.
(六) Scrap iron oxygen
This is a simple and effective method of oxygen, low arrangement can also be oxygen at room temperature, but the effects of unstable oxygen, in order to stabilize the oxygen effect and have heating, water temperature is generally higher than 70 ℃, the general operation flow 20 m / h, due to continued oxidation of iron surface to generate a large number of iron oxide, hindering the water of dissolved oxygen and iron reaction, when a certain degree, had to surface cleaning and activation, resulting in complex operation and effects of instability.
Normal temperature filtration type the mechanism of oxygen
Oxygen through the above-described method of analysis, we can see that iron oxygen with simple equipment, easy operation, infrastructure investment, operation and low cost, as long as the iron filings to overcome the effects of unstable oxygen, disadvantages such as requiring regular activation in fact, for the industrial boiler is an ideal method of oxygen.
The mechanism of oxygen at room temperature filter: Application patented technology to produce sponge iron particles, the main component is iron, and its porous internal structure, providing a surface area of 5-10 times the ordinary iron, oxygen and water can complete iron oxidation occurs rapidly, so that dissolved oxygen stabilized at 0.05mg / L or less, the reaction is:
2Fe+2H2O+O2→2Fe(OH)2
2Fe(OH2)+H2O+1/2O2→2Fe(OH)3↓
As long as the reaction product with a certain intensity of backwash water can rinse (about 5 minutes).
Sponge iron consumption is very low, according to the quantity and quality of the different treatment is generally 3-6 months added once.
After an increase of oxygen in the water after a small amount of iron ions (usually 0.2-0.5mg / L), hot water boiler is still in line for state water quality standards. But for the steam or water boiler iron, there are strict requirements for water supply oxygen, it can be installed in an existing iron after the deaerator, deaerator to remove iron ions out of the water, boiler feed water to ensure water quality. The company is equipped with all kinds of iron ion exchange equipment for users to choose.
Equipment Characters
(A) It can be achieved at room temperature, oxygen, water without heating;
(B) The oxygen effect is stable and reliable, the dissolved oxygen content stabilize ≤ 0.05mg / L, low-pressure boilers to meet water quality standards;
(C) The full range of equipment, control can be selected according to user requirements fully automatic or manual control;
(D) No special installation requirements, to overcome the heat, oxygen must be high-mounted vacuum inconvenience;
(E) Equipment can be low layout, small footprint, simple process;
(F) there is no need for the installation of automatic deaerator backwash pumps, the system simple.
Automatic control type deaerator specifications and technical parameters
Specification&Parameter&Name |
JMY–4 |
JMY–6 |
JMY–10 |
JMY–15 |
JMY–20 |
JMY–25 |
JMY–30 |
JMY–40 |
JMY–50 |
water outlet(M3/h) |
4 |
6 |
10 |
15 |
20 |
25 |
30 |
40 |
50 |
O.D.&Size(mm) |
D |
400 |
500 |
600 |
700 |
800 |
900 |
1000 |
1100 |
1200 |
Height for tank |
2600 |
2600 |
2800 |
2800 |
2900 |
2900 |
3100 |
3100 |
3100 |
floor space(side) |
500 |
600 |
900 |
1000 |
1200 |
1300 |
1400 |
1500 |
1600 |
Diamter for adapter(mm) |
exits&entrances |
40 |
40 |
50 |
50 |
65 |
80 |
80 |
100 |
100 |
backwash water |
40 |
40 |
50 |
50 |
65 |
80 |
80 |
100 |
100 |
packing layer(mm) |
1200 |
1200 |
1200 |
1200 |
1200 |
1200 |
1200 |
1200 |
1200 |
packing weight(Kg) |
250 |
380 |
550 |
740 |
970 |
1250 |
1500 |
1850 |
2200 |
equipment load(Kg) |
660 |
910 |
1320 |
1800 |
2300 |
3100 |
3800 |
4600 |
5400 |
working pressure(Mpa) |
0.15–0.5MPa |
control mode |
Automatic control, timing backwash |
working temperature(℃) |
8-50 ℃ (> 50 ℃, the user made in advance to facilitate the manufacturers to deal) |
JMY-type filter at room temperature deaerator Dimensions and installation diagram
part number |
JMY–4 |
JMY–6 |
JMY–10 |
JMY–15 |
JMY–20 |
JMY–25 |
JMY–30 |
JMY–40 |
JMY–50 |
Ø1 |
400 |
500 |
600 |
700 |
800 |
900 |
1000 |
1100 |
1200 |
Ø2 |
300 |
400 |
500 |
570 |
630 |
700 |
730 |
810 |
890 |
Ø3 |
200 |
200 |
210 |
210 |
240 |
240 |
240 |
270 |
270 |
L |
140 |
140 |
160 |
160 |
180 |
180 |
180 |
210 |
210 |
H |
2600 |
2600 |
2800 |
2800 |
2900 |
2900 |
3100 |
3100 |
3100 |
H1 |
1600 |
1600 |
1600 |
1600 |
1600 |
1600 |
1600 |
1600 |
1600 |
H2 |
1200 |
1200 |
1200 |
1200 |
1200 |
1200 |
1200 |
1200 |
1200 |
D |
40 |
40 |
50 |
50 |
65 |
80 |
80 |
100 |
100 |
W |
1850 |
1850 |
1850 |
2100 |
2150 |
2150 |
2300 |
2300 |
2300 |