Consultation on centrifugal pump cooling water

It’s the cooling oil. There is a small heat exchange fin in the fuel tank.

The cooling water for centrifugal pumps is generally injected into the mechanical seal

I agree with lcs8536’s view: cooling water should be injected into the mechanical seal to prevent it from reaching high temperatures. It is usually used in high-temperature pumps.

The cooling water for the pump should be used to cool the seal. The cooling pump body doesn’t have such a large heat exchange area either. There is a separation between the bearing housing and the pump body (the expression is unclear).

Generally, pump cooling mechanical seals, as well as bearing housings (bearing housings filled with lubricating grease)

The bearing housing has a sandwich structure; it contains lubricating oil inside, and there is a space between the inner and outer shells through which cooling water flows. The cooling water flow is generally from the water inlet to the bearing box, then to the base, and finally to the drain; a portion of the water exiting the bearing box is used to cool the mechanical seal. In old pumps with mechanical seals, these seals are usually located outside the gland. The machine seal gland has three holes, all of which are plugged when not in use. One is backwashing, which sends fluid back to the seal chamber of the pump outlet for flushing and cooling purposes. The other two are the inlet and outlet cooling water ports, which do not come into contact with the sealing medium. There can be separate pipes for water inlet and outlet; or there can be only an inlet, with a water jacket added and holes drilled in it, allowing water to flow out and create a circulation that serves a cooling purpose.

The shaft of the impeller chamber of the cooling water pump, along with the external mechanical seal or packing seal, and the pipe for cooling water.

May I ask, which type of cooling water do you mean – the one that first enters the bearing housing and then the mechanical seal? Our centrifugal pump bearing housing doesn’t have cooling water; is it true that not all cooling methods involve such water entering the bearing housing? Do you also know the location where the sealing flush fluid injector added to PLAN32 is installed? Is there a diagram of the bearing housing? As a beginner, I haven’t seen much information on its internal structure; I’d be very grateful:P

Both the pump body and the bearing housing have cooling water chambers; typically, the bearing housing of hot oil pumps needs to be cooled, and radiators on the bearing housing can also meet the heat dissipation requirements

In centrifugal pumps, most of the cooling water goes to the mechanical seal; some centrifugal pumps have a cooling water system designed within the bearing housing, to control the temperature of the cooling oil~~~