Steam-water separating box drainage system of sealing oil vacuum pump

Abstract

The invention belongs to the field of separator drainage systems, and specifically relates to a steam-water separating box drainage system of a sealing oil vacuum pump. The steam-water separating box drainage system comprises an overflow pipeline communicated with a steam-water separating box, wherein the overflow pipeline is provided with a buffer device for buffering the pressure in the steam-water separating box; the buffer device is communicated with the overflow pipeline; and when the sealing oil vacuum pump is started, the steam-water separating box has an instant positive pressure, lubricating oil or oil and water are sprayed out through the overflow pipeline to pollute the ground and peripheral equipment, and potential safety hazards exist. Because the oil and water are sprayed out after the vacuum pump is started normally or because of an insufficient oil level in the steam-water separating box due to the loss of lubricating oil and the like, the steam-water separating box needs to be supplemented with oil, the operation requires on-site monitoring and oil supplementation, and the workload of operating personnel is increased. By setting the buffer device to absorb the instant positive pressure, the overflow of the lubricating oil is reduced or even eliminated, the potential safety hazards are reduced, the oil level is stabilized, the number of oil supplementation and personnel monitoring is reduced, and the steam-water separating box drainage system is safer, more time-saving and more labor-saving.

Description

technical field [0001] The invention belongs to the field of separator drainage systems, in particular to a drainage system for a steam-water separation box of a sealed oil vacuum pump. Background technique [0002] The generator sealing oil system is an important equipment system of the power plant, which is used to seal the hydrogen of the generator so that it is tight and does not leak. The sealed oil vacuum pump needs to extract the insoluble gas and water vapor inside the sealed oil tank to achieve the purpose of establishing a vacuum inside the sealed oil tank and removing water in the oil. The moisture-containing gas extracted by the vacuum pump is discharged into the separator, and the moisture-containing gas is separated from the gas-water in the separator due to the pressure reduction. The separator has an oil supply port to ensure the operation of the vacuum pump, and the gas-water separation to the separator through the oil supply port The lubricating oil added ...

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Problems solved by technology

[0003] At present, due to the momentary positive pressure in the steam-water separation box of the separator when the vacuum pump is started, the lubricating oil is sprayed out through the overflow pipe, polluting the ground and surrounding equipment, and posing safety hazards

After the vacuum pump starts normally, the oil level in the steam-water separation box is insufficient due to part of the oil and / or water being sprayed out. At the same time, since the oil in the separation box is used for vacuum pump lubrication and oil replacement, the lubricating oil will also be lost during the normal operation of the vacuum pump. , so it is necessary to replenish the oil in the steam-water separation tank. Every time the vacuum pump is started, it needs to be monitored and replenished on the spot, which increases the workload of the operating personnel.

[0004] In addition, the staff needs to precisely control the amount of oil replenishment. When the amount of oil replenishment is a little too much or the accumulated water is not discharged from the overflow pipe in time so that the oil level is higher than the highest position of the overflow pipe, the lubrication in the separation box The oil and water will be completely discharged through the overflow pipe under the action of the siphon principle, so that the vacuum pump will run without oil, resulting in equipment failures such as excessive vibration of the pump body, insufficient output, abnormal noise in the pump, and even caused by excessive current. big trip

[0005] The above problems have existed for a long time, causing damage to mechanical equipment and seriously affecting production efficiency

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