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Common sense of gas tank sealing oil and oil purification

2020/1/5??????view:

  The sealing oil of gas holder is composed of refined mineral base oil and various high-quality additives. It can be used for sealing and lubrication of dry gas holder in metallurgy, city gas, petrochemical and other industries.

  Classification of sealing oil of gas holder:

  1. Sealing oil of dry gas holder

  The sealing oil of dry gas holder is made of refined mineral base oil and many high quality additives. It can be used for sealing and lubrication of thin oil sealing dry gas holder in metallurgy, city gas, petrochemical and other industries. This product is divided into 1, 2, 3, 1 low pour point, 2 low pour point and 3 low pour point.

  2. Sealing oil of low condensation dry gas holder

  The sealing oil of low pour point dry gas holder is blended with refined mineral base oil and selected high-quality additives. It is suitable for the sealing and lubrication of dry gas holder in metallurgy, city gas, chemical industry, petrochemical industry and other industries, and can meet the use requirements of harsh working conditions in cold regions. This product is divided into 1 low pour point, 2 low pour point and 3 low pour point.

  Gasholder sealing oil is mainly used in gasholder, which plays a role of sealing and lubricating, and provides a high safety factor for the system. For example, in the production process of iron and steel enterprises, gas emission not only wastes energy, but also pollutes the environment. In order to make full use of gas, put an end to emission and stabilize the pressure of pipe network, the thin oil sealed dry gas holder has been widely used in modern iron and steel enterprises.

  How to judge the service condition and viscosity of sealing oil in gas holder?

  (1) judgment of appearance color and smell:

  ① It is milky white and turbid, indicating that the oil has entered water; ② it is dark brown, indicating that the oil is oxidized;

  Odor judgment: there is a pungent odor, indicating that the oil is oxidized or deteriorated due to harmful gas components.

  (2) simple judgment of viscosity:

  ① Glass tilt observation method: take a drop of the same oil or different oil from two different service periods on a piece of tilted clean glass to see which one flows faster, then its viscosity is lower;

  ② Starting frequency method of oil pump: if the starting frequency of oil pump is significantly higher than before, it indicates that the viscosity decreases significantly. (3) oil droplet spot test of oil pollution: take a drop of tested oil on the filter paper, observe the change of spots, quickly spread, no sediment in the middle, indicating that the oil is normal; slow diffusion, sediment in the middle, indicating that the oil has deteriorated.

  How to arrange regular test and sampling for sealing oil of gas holder?

  Regular test and sampling inspection is one of the operating procedures of gas holder, which should be strictly implemented.

  In addition, it can also be carried out through the after-sales service provided by the gas holder sealing oil manufacturer, such as: (1) oil tracking service: take oil samples every half a year or a year for testing, and guide the use of oil according to the test report;

  (2) training: including on-site training for operators.

  How to choose and use gas holder sealing oil in different seasons and areas?

  In spring, summer and autumn, when the temperature is high, the gas holder is generally stable, and it is not easy to have big problems; in winter, when the temperature is low, the possibility of failure and accident of the sealing mechanism and sealing medium of the gas holder is greatly increased. So:

  (1) ensure heating: the oil temperature shall be kept at least above 15 ℃, and the oil and water can be effectively separated. The steam temperature is controlled between 100 ℃ and 110 ℃. In winter, avoid the piston not moving for a long time. If possible, the piston should go up and down one whole journey every day. It is suggested to lay a layer of electric heating system outside the insulation layer of the oil supply pipe to start when the oil supply pipe freezes.

  (2) take thermal insulation measures: the usual method is to build thermal insulation wall, or install rock wool thermal insulation layer on the two side plates under the gas cabinet Zui.

  (3) ensure the effect of oil-water separation: lower the water level of the oil tank at the bottom of the tank, lower the water level below 50 mm of the bottom of the oil inlet pipe, and control the oil-water interface below the bottom of the oil inlet pipe, so that the oil with less water in the upper layer of the oil tank at the bottom of the tank flows into the oil-water separator.

  (4) other measures: in winter, some oil pump stations with serious flooding can also be selectively closed. In winter, due to the small oil discharge, 1-2 oil pump stations can guarantee the oil supply.

  Lubricating oil filter

  If the seal oil of the gas holder is polluted by mechanical impurities or moisture, the lubricating oil filter with corresponding functions can be selected immediately for filtration and purification and oil recycling, so as to achieve the effect of energy saving and consumption reduction.

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