compensator

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1. Types of thermal pipeline compensators 1. natural compensation: Take advantage of the natural turns of the pipe. 2. gate compensator: Artificially square turns. It is a supplement to natural compensation. 3． Sleeve type compensator: Like a piston. Only axial compensation is performed. 4. bellows compensator: Utilize bellows to achieve axial and angular displacement. 5. Rotary compensator: Use packing seals to realize pipeline rotation and compensation. 6. ball compensator: Like the bellows angular compensator, angular displacement is achieved. 2. Advantages and disadvantages of various compensators 1. natural compensation: Go with the flow, work reliably, and have the widest operating pressure and temperature range. However, there must be a ready-made terrain or plane location that allows the pipeline to make more turns to meet the requirements for thermal compensation. 2. square compensator: Similar to natural compensation, square turns are artificially increased to make up for the lack of natural compensator bends. The advantage is that it is not limited by working pressure and temperature. The disadvantage: It has large fluid resistance, takes up a lot of area, has many pipe supports, is unsightly, and requires a large investment. "Natural compensation" is used when natural compensation cannot meet thermal compensation requirements. For situations where the pressure exceeds 4.0MPa, there are almost no other products that can replace it. 3． sleeve compensator: It can also withstand higher pressure and temperature, has large compensation capacity and is easy to install. shortcoming: Easy to leak, frequent maintenance, large thrust. It cannot be used in situations that require high fluid purity. 4. bellows compensator: There are many types, which are divided into axial type (internal pressure and external pressure or thrust and non-thrust or overhead type and direct buried type. . . ), angular type (flat and duplex), and transverse type (flat and duplex). It has wide application, no leakage and good reliability, but the operating temperature and pressure are limited. The temperature is 400 degrees and the pressure does not exceed 4.0MPa. The angular type can satisfy large displacement and generate small thrust through combination (2 to 3 pieces), and its application prospects are bright. This time we focus on the topic. 5. Rotary compensator: Recently launched new product, thermal compensation through 2 combinations and pipe turns. The compensation amount is large, the thrust is small, the maximum temperature can reach 485 degrees, and the pressure can reach 5.0MPa. Manufacturing technology is becoming increasingly mature and is less prone to leakage. However, there are changes in pipelines in different planes. For pipelines transporting media that produce condensed liquid, more drainage and exhaust valves need to be installed. 6. ball compensator: To achieve angular displacement, it is the same as the bellows angular compensator. When used in combination, the fluid resistance is small, the compensation amount is large, and there is no thrust. It is prone to leakage and directional displacement, and requires a large amount of maintenance.