What is the working principle of the heat dissipation system of the drilling equipment under the explanation of the friction welding drill pipe?

Classification:

Industry dynamics

Release time:

2020-07-30

【Summary Description】 Drilling fluid with large displacement is required during the drilling operation, so the friction welding drill pipe must be drilled with two mud pumps. Due to the increasing depth of the well, the pressure of the mud column at the bottom of the well will continue to rise.

摩擦焊钻杆Large displacement drilling fluid is required during drilling operations, soFriction welding drill pipeTwo mud pumps must be used for drilling. Due to the increasing depth of the well, the pressure of the mud liquid column at the bottom of the well will continue to rise, and the load of the mud pump will increase accordingly. According to the previous data during the drilling period, the borehole is relatively large, the displacement is also large, and the well depth is relatively deep during the second opening drilling. Therefore, the mud pump required at this time is relatively high, and the pump pressure is also relatively high, resulting in a large load on the mud pump.
Generally, when the second pump is started, the pump stroke of each mud pump is at least 80 and the pump pressure is above 20MPa. At this time, the current of the mud pump motor is about 1000A. If it is summer at this time, the temperature of the transmission module generally rises to above 90 ℃ after about an hour, which is close to the alarm value of the module, seriously affecting the service life of the inverter module.
Friction welding drill pipeAt this time, the temperature of the variable frequency motor also rose to more than 120 ℃ in about 2 hours. Be sure to switch the mud pump. The distribution room of the platform is equipped with two air conditioning units on both sides respectively, and the cooling capacity of each air conditioner is 52kW, but it still cannot meet the heat dissipation requirements of the transmission cabinet. The reasons are:
1. Due to the large load of the transmission cabinet itself, the self-cooling function of the cabinet itself is not good, resulting in high temperature at work.
2. Because the transmission cabinets of 3 mud pumps are arranged adjacent to each other, the heat source is concentrated. When 2 mud pumps are used, the heat generation is more serious.
3. The layout of the air duct in the power distribution room is not particularly reasonable. Although there are already 3 air duct, the air outlet and the heat source distribution do not match, and the cold air cannot exert a greater effect. It's often cold somewhere else,Friction welding drill pipeThe vicinity of the mud pump transmission cabinet is still very hot, so the heat cannot be dissipated and the module temperature cannot drop.
4. The cooling wind direction of the transmission cabinet and the air conditioner is inconsistent. The transmission cabinet is the lower air inlet and the upper air outlet, and the air conditioner is blowing down from the top, which causes a short circuit of hot air locally. The cold air cannot form good air convection and the cooling effect is not good.





Key words:

weilida drill