A gate valve for a cooling system on a ship

Abstract

The invention discloses a gate valve for a cooling system on a ship. The gate valve comprises a handle (1), a valve body (2) and a gate (3). Bore type spiral depressions (4) are formed in the inner walls of a water inlet pipe cavity and a water outlet pipe cavity of the valve body (2), and the rotation direction of waterflow passing the water inlet pipe cavity is opposite to the rotation direction of waterflow passing the water outlet pipe cavity. The waterflow flows into an inner cavity of the valve body (2) in a rotary mode. In addition, due to the fact that the rotation direction of the waterflow passing the water inlet pipe cavity is opposite to the rotation direction of the waterflow passing the water outlet pipe cavity, more drastic agitation occurs in the middle, where a seal face is located, of the valve body (2), the calm conditions needed by implantation of shellfish creatures are damaged, implantation of the shellfish creatures in the inner cavity of the valve body (2) is prevented, and thus valve closing is smooth.

Description

technical field [0001] The invention belongs to valves, and more specifically relates to a gate valve for cooling systems on ships. Background technique [0002] Located on the bottom of the ship, the valve used for the cooling system of the turbine is connected to the sea at its water inlet. Since the ship has been immersed in the sea for a long time, especially in the coastal waters where shellfish are easy to multiply, because shellfish like to be on the smooth surface However, the ship needs to keep the valve in the open state for a long time, so that the sealing surfaces of the inner cavity of the valve will bite shellfish, causing the valve to be blocked. When the related equipment connected to the valve is overhauled, seawater Leakage into the ship must pass through the valve, which is a problem that ship owners have been worrying about. Therefore, it is of great significance to provide a gate valve for cooling systems on ships. Contents of the invention [0003] T...

AI Technical Summary

Problems solved by technology

[0002] Located on the bottom of the ship, the valve used for the cooling system of the turbine is connected to the sea at its water inlet. Since the ship has been immersed in the sea for a long time, especially in the coastal waters where shellfish are easy to multiply, because shellfish like to be on the smooth surface However, the ship needs to keep the valve in the open state for a long time, so that the sealing surfaces of the inner cavity of the valve will bite shellfish, causing the valve to be blocked. When the related equipment connected to the valve is overhauled, seawater Leakage into the ship must pass through the valve, which is a problem that ship owners have been worrying about. Therefore, it is of great significance to provide a gate valve for cooling systems on ships.

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