Matters needing attention in replacing oil pipe of guide rail elevator
The problem with the use of the guide rail elevator is that it has been used for a long time, and the oil pipe is easy to burst, leading to a dangerous accident when the oil level drops. When replacing the guide rail elevator, do not try to be cheap, leading to poor quality. Once the oil pipe breaks, we must fix the platform of the guide rail elevator while replacing the oil pipe, and then use the support steel pipe to place the platform to slide down, You must pay attention to the tight installation of the oil pipe when replacing it. If you have other questions, please contact us.
1、 Precautions for replacing oil pipe of guide rail elevator:
① The tubing should be as short as possible, horizontal and vertical, with few turns
② In order to avoid the buckling of the oil pipe and reduce the pressure loss, the bending radius of the oil pipe assembly of the hydraulic elevator shall be large enough, and the pipe clamp shall be properly set when the oil pipe overhangs longer.
③ Oil pipes shall not be crossed as far as possible The distance between parallel pipes shall be greater than 100 mm to prevent contact vibration and facilitate the installation of pipe joints.
2、 Introduction and precautions of pipe joint in guide rail lifting oil pipe:
① Brief introduction: The pipe joint is a detachable connecting piece between oil pipes and oil pipes, and between oil pipes and hydraulic components. It must have such conditions as convenient assembly and disassembly, firm connection, reliable sealing, small overall dimensions, large flow capacity, small pressure drop, and good processability.
② Type: There are many types of pipe joints, including hard pipe joints and hose joints. According to the connection mode of pipe joint and oil pipe of fixed lifting platform, there are three kinds of hard pipe joints: flared pipe joint, ferrule pipe joint and welded pipe joint. Hose joints mainly include buckle type hose joints. Its specifications and varieties can be found in relevant manuals.
③ Common connection mode of oil pipe and pipe joint in hydraulic system of fixed lifting platform. The connecting thread used for the screwed in end of the pipeline adopts the national standard metric taper thread and ordinary fine thread. Taper threads are widely used in medium and low pressure hydraulic systems, depending on their own cone tightening and sealing with PTFE; Fine thread has good sealing property and is commonly used in high-pressure system.
④ The combined washer or O-ring is used for end face sealing, sometimes the red copper washer can also be used
⑤ Most of the leakage problems in the hydraulic system occur in the joints in the pipe system. Therefore, the selection of pipes, the determination of joint type, the design of the pipe system and the installation of the oil pipe should be taken seriously to avoid affecting the use quality of the entire hydraulic system.
⑥ After the connection, leak detection shall be carried out to ensure normal pressure, so as to eliminate potential safety hazards.
If the oil pipe of the hydraulic elevator is damaged, the lifting platform will be unable to lift, cannot reach the rated height, or even has potential safety hazards. It should be repaired or replaced in a timely manner, and the operation can only be carried out after the fault is eliminated.
