Original name: at the power plant, why does the wheel stop and the lubricating oil pumps continue to run? This isn't too much
When i was on the night shift, wang himself had just taken over, the mainframe stopped and the drive was dropped, turned and stopped。
A lot of newcomers come here to rest, but the king doesn't. Instead, he kept an eye on the axle bearing back the oil temperature, the metal temperature, and kept the lubricant pump running。
A lot of new people think they're parked, why are the pumps running
That is not the case。
We've been at the car scene and we know: after the stop, the trouble just started。
One, the car stopped and the machine was "safe asleep."
Cars, essentially, address the tendency to bend as a result of the hot turn of the rotor, the temperature differential up and down。
The aim is to make it cool slowly and evenly。
But even if the vehicle was parked, that moment did not mean that the bearings, the oil membranes and the oil road were also static。
Here we add knowledge of a lubricant system:
The basic task of the lubricating system is not just to provide oil for lubrication, but also to take the friction heat away, to ensure that between the rotor parts and the bearings, and then to form a suitable kinetic lubrication。
And to say that the lubrication system is still working at the start-up, stop-up, roll-back or even jump-off。
So as long as the rotors are still hot and the bearings are not cooled. Then there's a risk that the film will be bandaged and the oil won't break。
Where's the heat running after the stop
Many of the new people in the power plant are a little confused:
The steam's gone after the stop, and the rotor's going down. So the metal's temperature is zero
The answer is no。
Because many crews are going through a process. For example, axle bearings, these are still heating and heat transfer, such as temperature of oil and temperature of return。
Here, lubricant is not really "weave it down," it's a cooling medium。
So even if the car stops, sometimes the bearings are still hot and the oil is not gone, the heat may not have gone out。
3. Low-speed/cut-off phase, more sensitive oil membrane
There are a lot of new people in the power plant who think that if the rotor doesn't turn, it's useless to have a film。
In fact, this is not the case, and it is easier to build oil membranes at high speeds and to be more sensitive at low speed and critical stages。
The rotors are actually “floating” on the bearings on a thin layer of oil film; the lower the speed, the more critical the oil viscosity and the oil supply state, the easier it is to “fall”。
So many of the main oil pumps of the motors are axle bands, which supply at axle speed; at this low-speed phase of start-up, stop-up, they are naturally insufficient and therefore need to be on the support pump top。
And that's why the industry considers the “stop-inert-low-speed-drive” part of the lubrication system as the least capable of losing chains:
So it's not "lubrication," it's "save life"。
Don't forget, the lubricating oil system is not just a lubricating axis. Yes
Many of the units' lubricating oil systems actually perform most of the tasks, such as hydraulic control bearings/lifting axes。
If the lubricating oil pumps were to stop, they did actually save electricity on the surface, but could actually result in the pressure to control the oil and the chain of sealed oil would be affected。
So don't say anything. The wheel stops and the pump stops。
So many experienced old colleagues or power plants now prefer to let the pumps run for a while rather than just stop。
Because, once stopped, there is a high risk of burning tiles, axle neck lesions, maintenance costs, spare parts cycles, work schedules and even personal risks, all of which are expensive。
Even if the truck stops, the lubricant pump has to keep running. It looks stupid, but it works。
