Mechanical sealing device for integrated water seal

Abstract

The invention discloses a mechanical sealing device for an integrated water seal, which comprises a mechanical sealing device, a water seal device and a gland, wherein the mechanical sealing device consists of a stationary ring, a movable ring component and a shaft sleeve; the water seal device consists of a ring compensating stationary friction ring (5) which is arranged at the outer end of the gland and a movable friction ring (6) which is arranged on the shaft sleeve; the movable friction ring (6) is fixedly connected with the shaft sleeve (4) and a shaft through a set screw (41); and the stationary friction ring (5) is matched with the movable friction ring (6) to form a mechanical seal type water seal device. The mechanical sealing device forms an assorted integrated seal device and is convenient to transport, mount and use; the water seal device has good sealing property and high bearing capacity; the sealing property of the water seal is guaranteed; and the working condition of the mechanical sealing device is improved.

Description

Technical field [0001] The invention relates to a shaft mechanical seal and a water-cooled sealing device. Background technique [0002] Mechanical seals are often used in various equipment, especially pumps to seal the shaft. In order to cool the mechanical seal, a cooling medium such as water needs to be introduced to cool the heat generated by the friction pair of the mechanical seal, which is called "quick cooling" or "Back cooling", while cooling the mechanical seal device with water and other media, the accumulated crystal particles and dirt are also removed. In this way, it is necessary to set up an auxiliary seal, that is, a water seal mechanism, on the shaft end cover. Generally, quenching water is injected into the inner cavity of the gland from the input port for cooling or flushing, and then directly discharged naturally from the output port, which obviously causes a waste of cooling water. In some industries, such as the petrochemical industry, with the reducti...

AI Technical Summary

Problems solved by technology

The various original water sealing devices can only play a certain role in preventing overflow, but cannot meet the sealing requirements. After the quenching water is connected to the recovery pipeline system, the quenching liquid is discharged from the quenching liquid due to the increased resistance and pressure. The gap of the water seal leaks or even sprays out. The pressure bearing capacity and sealing performance of various existing water seal mechanisms are low, and the use requirements of zero leakage cannot be guaranteed.

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