Water seal device for torch system and operation method of water seal device

Abstract

The invention discloses a water seal device for a torch system and an operation method of the water seal device. The water seal device is provided with a water seal tank (1), an overflow liquid collecting tank (2), an oil skimming and overflow pipe (8), an overflow liquid gathering pipe (9) and a U-shaped overflow pipe (3). The top of the oil skimming and overflowing pipe is provided with an oil skimming and overflowing funnel (25), and the bottom of the oil skimming and overflowing pipe is connected with the overflowing liquid gathering pipe. An oil skimming baffle (12) is arranged in the overflow liquid collecting tank and divides the overflow liquid collecting tank into an overflow liquid cabin (14) and a condensed oil cabin (13), and an inlet of the U-shaped overflow pipe is communicated with the overflow liquid cabin. The water seal device is further provided with a condensation oil pump (4), a condensation oil pump inlet pipeline (18), a condensation oil pump output pipeline (20), a condensation oil pump backflow pipeline (19), a first adjusting valve (27) and a second adjusting valve (28). The invention discloses an operation method of the water seal device. The invention is mainly used for torch systems of petrochemical enterprises.

Description

technical field

[0001] The invention relates to a water sealing device for a flare system in a petrochemical enterprise and an operation method thereof. Background technique

[0002] The torch systems of petrochemical enterprises often use water-sealed tanks and liquid seals to prevent the torch system from flashing back, avoid damage to the discharge pipe network of the torch system and its connected equipment, and ensure production safety. After the flare exhaust gas passes through the sealing water of the water-sealed tank, some heavy components will condense out from the flare exhaust gas and form condensed oil. Condensed oil has a smaller specific gravity than water and will float on the surface of the sealed water in the water-sealed tank. In order to avoid backfire combustion and explosion in the flare system, it is necessary to skim the condensed oil in time, and ensure the overflow of the sealing water to maintain the height of the water seal required for productio...

Examples

Embodiment Construction

[0012] see figure 1 , A water sealing device for a flare system of the present invention is provided with a water sealing tank 1, an overflow liquid collection tank 2, an oil skimming and overflow pipe 8, an overflow liquid manifold 9, and a U-shaped overflow pipe 3. Water seal tank 1 and overflow liquid collection tank 2 are generally horizontal tanks (such as figure 1 Shown), can also be a vertical tank (figure omitted). The water-sealed tank 1 is provided with a flare exhaust gas inlet pipeline 5 and a flare exhaust gas outlet pipeline 6, the inlet of the flare exhaust gas inlet pipeline 5 is connected with the process device, and the outlet of the flare exhaust gas outlet pipeline 6 is connected with the torch. The overflow liquid collection tank 2 is located below the water seal tank 1, and a gas-phase communication pipe 10 is provided between the water seal tank 1 and the overflow liquid collection tank 2, and the gas-phase communication pipe 10 connects the water seal ...

technical field

[0001] The invention relates to a water sealing device for a flare system in a petrochemical enterprise and an operation method thereof. Background technique

[0002] The torch systems of petrochemical enterprises often use water-sealed tanks and liquid seals to prevent the torch system from flashing back, avoid damage to the discharge pipe network of the torch system and its connected equipment, and ensure production safety. After the flare exhaust gas passes through the sealing water of the water-sealed tank, some heavy components will condense out from the flare exhaust gas and form condensed oil. Condensed oil has a smaller specific gravity than water and will float on the surface of the sealed water in the water-sealed tank. In order to avoid backfire combustion and explosion in the flare system, it is necessary to skim the condensed oil in time, and ensure the overflow of the sealing water to maintain the height of the water seal required for productio...

Examples

Embodiment Construction

[0012] see figure 1 , A water sealing device for a flare system of the present invention is provided with a water sealing tank 1, an overflow liquid collection tank 2, an oil skimming and overflow pipe 8, an overflow liquid manifold 9, and a U-shaped overflow pipe 3. Water seal tank 1 and overflow liquid collection tank 2 are generally horizontal tanks (such as figure 1 Shown), can also be a vertical tank (figure omitted). The water-sealed tank 1 is provided with a flare exhaust gas inlet pipeline 5 and a flare exhaust gas outlet pipeline 6, the inlet of the flare exhaust gas inlet pipeline 5 is connected with the process device, and the outlet of the flare exhaust gas outlet pipeline 6 is connected with the torch. The overflow liquid collection tank 2 is located below the water seal tank 1, and a gas-phase communication pipe 10 is provided between the water seal tank 1 and the overflow liquid collection tank 2, and the gas-phase communication pipe 10 connects the water seal ...

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