What are the precautions for using the tank hydraulic jacking system?
The role of the tank hydraulic jacking system is to increase the force by changing the pressure. The main function of the tank hydraulic jacking system is to transmit power and movement. Next, the precautions of the tank hydraulic jacking system will be explained in detail.
Here is the content list:
l Common problems when using tank hydraulic jacking system.
l Combining the above problems, talk about the measures to control the leakage of tank hydraulic jacking system.
l Matters needing attention when using tank hydraulic jacking system.
Common problems when using tank hydraulic jacking system.
Reasons for leakage of tank hydraulic jacking system.
(1) Caused by defects in design and manufacturing
(2) Impact and vibration cause loose pipe joints
(3) Mutual wear of dynamic seals and matching parts (especially hydraulic cylinders)
(4) The oil temperature is too high and the rubber seal is incompatible with the hydraulic oil and deteriorated.
Combining the above problems, talk about the measures to control the leakage of tank hydraulic jacking system.
l Solution 1: Design and manufacturing defect solutions
The selection of external components of tank hydraulic jacking system often plays a decisive role in the leakage of hydraulic system. This determines that in the improvement of tank hydraulic jacking system, our technicians should carefully choose the cylinders, pumps, valves, seals, hydraulic accessories, etc. based on the principle of choosing the best among the best and choosing the cheap.
① Reasonably design the mounting surface and sealing surface of the tank hydraulic jacking system. When the valve block or pipeline is fixed on the mounting surface, in order to obtain a satisfactory initial seal and prevent the seal from being pushed out of the groove and being worn.
② The installation surface of the tank hydraulic jacking system should be straight and the sealing surface should be finished. The surface roughness should reach 0.8μm and the flatness should reach 0.01/100mm. The surface must not have radial scratches, and the pre-tightening force of the connecting screw must be large enough to prevent surface separation.
③ During the manufacturing and transportation of tank hydraulic jacking system, it is necessary to prevent the key surface from bumping and scratching. At the same time, the assembly and debugging process must be strictly monitored to ensure the quality of assembly.
④ Do not be taken lightly about the leakage of some tank hydraulic jacking system, and must be eliminated.
l Option 2: Reduce shock and vibration
In order to reduce the leakage of tank hydraulic jacking system caused by the loosening of pipe joints subjected to shock and vibration, the following measures can be taken:
① Use shock-absorbing brackets to fix all pipes to absorb shock and vibration;
② Use low-impact valve or accumulator to reduce the impact;
③ Properly arrange pressure control valves to protect all components of the tank hydraulic jacking system;
④ Minimize the number of pipe joints used, and try to use welding to connect pipe joints;
⑤ Use straight threaded joints, tee joints and elbows instead of tapered pipe threaded joints;
⑥ Try to replace each piping with oil return block;
⑦ For the highest pressure used by the tank hydraulic jacking system, specify the bolt torque and plug torque during installation to prevent the joint surface and seal from being eaten away;
⑧ Install the pipe joints of the tank hydraulic jacking system correctly.
l Option 3: Reduce the wear of dynamic seals
Most of the dynamic seals have been precisely designed. If the dynamic seals are qualified, installed correctly, and used reasonably, they can guarantee a long-term relatively leak-free work. From the perspective of tank hydraulic jacking system design, designers can take the following measures to extend the life of dynamic seals:
① Eliminate the side load on the piston rod and drive shaft seal;
② Use dust ring, protective cover and rubber sleeve to protect the piston rod to prevent abrasives, dust and other impurities from entering;
③ Design and select a suitable filter device and a fuel tank that is easy to clean to prevent dust from accumulating in the oil;
④ Keep the speed of the piston rod and shaft as low as possible.
Matters needing attention when using tank hydraulic jacking system.
First of all, the requirements for static seals,tank hydraulic jacking system static seals prevent oil leakage between rigid fixed surfaces. Reasonably design the size and tolerance of the seal groove, so that the installed seal will be deformed to a certain extrusion so as to fill the microscopic depression of the mating surface and increase the internal stress of the seal to be higher than the pressure to be sealed.
It should be noted that when the rigidity of the part or the pre-tightening force of the bolt is not large enough, the mating surface will separate under the action of the oil pressure, causing a gap or increasing the gap that may exist from the beginning because the sealing surface is not flat enough. As the mating surface moves, the static seal becomes a dynamic seal. Rough mating surfaces will wear the seal, and the fluctuating gap will eat away at the edge of the seal.
In addition, control the oil temperature to prevent deterioration of the seal. Premature deterioration of the seal may be caused by many factors. An important factor is the high oil temperature. Each time the temperature rises by 10°C, the seal life will be halved. Therefore, a reasonable design of an efficient tank hydraulic jacking system or a forced cooling device should be provided to keep the optimal oil temperature below 65°C.
Among them, engineering machinery of tank hydraulic jacking system must not exceed 80°C, and hydraulic oil and seal types and materials should be selected according to the operating instructions or relevant manuals to solve compatibility problems and extend the service life of seals.
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