yixing green enviromental protection co.,ltd.

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1, Summarize

Thermal deaerator (spin membrane deaerator) is a new type of thermal deaeration device, it can remove the thermal system in the water dissolved oxygen and other gases, prevent the corrosion of the heating equipment, is to ensure that the power plant and industrial boiler safe operation of the important equipment.

2, Basic principle

In a container, dissolved in the water the gas quantity is on the surface of the points with gas is proportional to the pressure. Using thermal oxygen, which is the main method of steam to heat water, increase the temperature of the water, the water of the steam pressure points, and gradually increase the dissolved gas pressure points is gradually to reduce, dissolved in the water gas have been escaping, when water is heated to a corresponding temperature under pressure of boiling water, steam, all is the dissolved gas pressure points for zero, water no longer has the ability of dissolved gas dissolved in the water, that is, the gas, including oxygen all can be removed. In addition to the effect of oxygen on one hand in the water supply and whether the decision to the corresponding temperature under pressure of boiling, on the other hand decided in the elimination of the dissolved gas speed, the speed and water and steam contact surface area size has the very big relations.

Spin membrane type deaerator working principle (jet, suck roll, turbulent flow, heat transfer, mass transfer, water film skirt, get wet in the rain shape, saturated) water and water first into oxygen added in the head spin the membrane water room, in a certain group of water level under pressure from film pipe of the holes in the hole to the jet grouting, form, because the hole with jet rising heating steam, water in jet movement will a lot of heating steam suck involved (test prove jet movement uptake role roll); Address: haizhou development zone JingYiLu lianyungang city business number five in a very short time of small trip of violently mixed heating effect, water temperature greatly raised, and the rotating along the membrane water hole wall pipe to spin, form a layer of the billowing skirt, water film (water flow in rotation of critical Reynolds number down much which produce turbulent flow back), at this time the state of the turbulent water heat and mass transfer effect, the most ideal temperature to saturation temperature. Oxygen is isolated, for oxygen hole at will, can't spread, can only rise from the steam with steam discharge tube to the atmosphere. Since the film segment of the water supply and coarse oxygen by dredging conduit of the introduction of hydrophobic here a second distribution, mixed in the rain falls, even loaded to its liquid steam, and then to online depth oxygen into water tank before. The water inside cistern oxygen levels for high pressure 0-7 §è ¨À/L, low voltage less than 15 §è ¨À/L reaches the first-class standard operation.

For spin membrane type deaerator water in the work is always in the turbulent flow condition and have a big enough heat transfer surface area, so the heat and mass transfer effect of the more good, small amount of exhaust steam heating and steam content (i.e. the less energy losses small, with the economic benefit are also considerable) in addition to good effect of rich oxygen produced quantity can make deaerator overload running (usually short-term excess of the efforts of 50% set) or low water temperature under the water to operational standards.

3, characteristics

3.1 oxygen high efficiency, and water supply oxygen levels qualified rate 100%. Atmospheric type deaerator water supply oxygen levels should be less than 15 §è ¨À/L, pressure type deaerator water supply oxygen levels should be less than 7 §è ¨À/L.

3.2 stable operation, no vibration. Can be applied to the negative pressure start sliding pressure operation for the start-up and operation of the artificial multifarious adjustment of operation.

3.3 to adapt to the performance is good, on water quality, water temperature requirement not hard, and the advantages of short-term beyond force 50% operation.

3.4 displacement small, less energy consumption.