Directly buried corrugated compensator, directly buried corrugated compensator, rectangular compensator with complete specifications from an old factory

口径：

DN600

压力：

1.6mpa

补偿量：

160mm

Detailed introduction of direct buried corrugated compensator! [Corrugated Pipe] Directly buried corrugated compensator is mainly suitable for axial compensation and has super bending resistance, so the impact of pipeline sinking is not considered. The direct-buried corrugated compensator is protected by the shell and guide sleeve and can be freely telescopically compensated. Other properties are the same as those of the modified corrugated compensator. Installation precautions In order for the directly-buried corrugated compensator to play a compensating role, fixed brackets must be installed at both ends of the compensator. , to prevent the pipeline from being stretched due to external displacement due to internal pressure and thrust. One end of the compensator (referring to the dead end of direct-buried compensation for one-way compensation) should be close to the fixed bracket at one end, and the living head of the compensator should be used to compensate the pipe. Set the distance between the two fixed brackets according to the compensation amount. The compensation amount is generally not larger than the pipe diameter. During the pressure test, the compensator cannot handle the stretching phenomenon.
Directly buried sleeve compensator in directly buried pipelines. During the process of transporting various media, the pipe length changes due to thermal expansion and contraction, so various compensation devices must be used to compensate. At present, in heating network projects in building communities, direct burial of heating pipes is widely used due to its advanced technology and low construction cost. Compensation methods and compensators for directly buried pipes have also been developed. The direct-buried sleeve compensator for directly buried pipelines has the characteristics of no inspection well, easy installation, small footprint, good corrosion resistance, no leakage, and large compensation amount, which makes up for the traditional sleeve compensator. Despite its own shortcomings, it has shown obvious advantages and has been gradually used in residential heating network projects. Characteristics of direct-buried sleeve compensators. Ordinary sleeve compensators have poor anti-corrosion and wear-resistance. They cannot be immersed in water, let alone directly carried out. It is buried and must be installed in an inspection well. Ordinary sleeve compensators are of non-flange type, and the packing is an asbestos rope ring soaked in engine oil and impregnated with graphite powder, which is prone to leakage and requires frequent maintenance. After a certain period of time, the packing needs to be replaced, which is extremely inconvenientbr/> Direct burial The structural principle of the sleeve compensator is two-way compensation. The outer sleeve of the ordinary type has telescopic core tubes in both directions. The compensation amount is twice that of the ordinary type, and it is used for two-way compensation, reducing the length and dimensions of the two ordinary types. and cost. The casing compensator that eliminates the axial force of the fixed support due to the medium pressure is different from the ordinary compensator. This type of compensator is often prefixed with the words balanced pressure balanced type without thrust in front of the sleeve, and its structural type is eliminated. The principle of medium axial force is divided into three types: bypass type, piston balance type and balanced angle type. The thermal elongation of the pipe is compensated by the movement of pipe A in the sleeve. The medium flow does not flow directly from pipe A into pipe B, but through the bypass pipe. In this way, there is a pair of heads A and B in a compensator, and the horizontal thrust generated by the medium pressure is balanced in the compensator. This structure can also be regarded as a type of directional compensator, and the pipe expansion and contraction adopts a sleeve-type structure. The piston automatic balancing compensator installs an annular piston outside the core tube and makes the total area of the piston equal to the cross-sectional area of the core tube. This is the core technology to achieve automatic balancing. The force analysis of this structure is as follows. It is assumed that a piston automatic balancing compensator is installed on a section of pipe to generate axial thrust due to medium pressure. Its direction is opposite and the magnitude is equal. These two forces act on the left and right connecting pipes of the sleeve respectively. , if it cannot be balanced, it should be separated. The fixed brackets on the left and right sections of pipes bear the load. Now an additional piston body is used. The medium in the piston body is connected to the pipe through the connecting hole. The medium pressure also acts on the piston body. The area of the piston is equal to the cross-sectional area of the pipe. Then, it is connected to the left sleeve through the piston rod, which is a The action force and reaction force are equal in magnitude and opposite in direction, so,. In this way, the two pairs of forces are equal in magnitude and opposite in direction, acting on a straight line, so that the axial force generated by the medium pressure is balanced.
The ordinary type adopted this structure in the 1960s. At this time, the basic type of sleeve compensator was developed in this form after changing the sealing material. The above two structures will no longer have the problem of pulling away from the east during the pipeline pressure test, nor will the sleeve move relative to the installation position, making construction and installation easier.
When manufacturing directly buried corrugated compensators, the outer shell is usually made of carbon steel and the inner corrugations are made of stainless steel. Corrugated stainless steel materials are specifically divided into material, material, material, and material. The number of corrugated layers is specific. There are single-layer and double-layer corrugations with different thicknesses. The materials used are all manufactured according to the requirements of different working conditions.
1. Compensation characteristics The direct buried compensator (also called direct buried compensator, direct buried expansion joint, direct buried bellows compensator, direct buried expansion joint) is mainly used for axial compensation, and also It has bending resistance, so the direct buried compensator does not consider the impact of pipeline sinking. Corrugated compensator is also called bellows compensator, stainless steel corrugated compensator model. Our factory produces directly buried bellows compensator (stainless steel corrugated compensator), pressure level.
The axial compensation amount of the product has always been buried in the bellows compensator (stainless steel bellows compensator)
Our company, Xinghang Bellows Manufacturing Co., Ltd., has strong technical strength and production capacity, and constantly absorbs and introduces advanced domestic and foreign technologies. management experience and production technology. Quality excellence is our unremitting pursuit! The purpose of the enterprise is to seek development through science and technology and ensure 100% product quality. The company's employees are willing to provide high-quality products and thoughtful after-sales service from sales, design, production to installation site. We are willing to cooperate with users and designers to create development with reliable quality and good reputation
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