Dual-sealing flange assembly for cooling water pipe of cooling tower

Abstract

The invention discloses a double-sealed flange assembly for cooling water pipes of cooling towers. An outer pipe is welded on the first flange, and a constriction is formed at the end of the outer pipe inwardly. An inner pipe is welded in the constriction, and the inner pipe and the outer pipe are welded together. An annular inner cavity is formed between the tubes, a first sealing gasket is arranged in the annular inner cavity, and a plurality of second screw holes are arranged on the second flange piece, the first flange piece matches the second flange piece, and the first screw hole The hole is matched with the second screw hole, and a center pipe is welded on the second flange piece. After the first flange piece and the second flange piece are connected, the center pipe extends into the annular inner cavity and compresses the first sealing gasket, and the second flange piece is connected. A second sealing gasket is also arranged on the flange piece. The double-seal flange assembly for the cooling water pipe of the cooling tower of the present invention adopts a double-layer casing and a double-sealing ring structure. On the one hand, it can reduce the area where the low-temperature fluid in the cooling water pipe directly acts on the sealing ring; It also plays a role in isolating low-temperature fluid, making the sealing ring more elastic and sealing effect better.

Description

technical field [0001] The invention relates to a flange assembly, more precisely, a double-seal flange assembly for cooling water pipes of cooling towers. Background technique [0002] A cooling tower is a device that uses water as a circulating coolant to absorb heat from a system and discharge it to the atmosphere to reduce the water temperature; its cooling is to use water and air to exchange heat and cold to generate steam, and the steam evaporates to take away heat to achieve evaporation The principle of heat dissipation, convective heat transfer and radiation heat transfer is used to dissipate the waste heat generated in industry or in refrigeration and air conditioning to reduce the water temperature. The evaporative cooling device is used to ensure the normal operation of the system. The device is generally barrel-shaped, so it is called a cooling tower. The cooling tower is a comprehensive product integrating aerodynamics, thermodynamics, fluids, chemistry, bioch...

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Problems solved by technology

[0003] The connecting flange of the cooling water pipe of the cooling tower is easily affected by the low-temperature fluid in the water pipe, causing the sealing ring to become brittle and weakened in elasticity, which in turn affects the overall sealing performance of the flange, and even causes water leakage of the cooling water pipe

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