Large-compensation-amount heating and ventilation pipeline construction method

Abstract

The invention discloses a large-compensation-amount heating and ventilation pipeline construction method. A large-compensation-amount heating and ventilation pipeline comprises a large-compensation-amount pipeline compensator and heating and ventilation pipeline bodies arranged at the two ends of the pipeline compensator correspondingly, connecting discs are fixedly arranged at the two ends of the pipeline compensator, and flanges are fixedly arranged at the ends, close to the pipeline compensator, of the heating and ventilation pipeline bodies. According to the large-compensation-amount heating and ventilation pipeline construction method, the heating and ventilation pipeline bodies and the pipeline compensator can be conveniently, rapidly and stably installed and fixed, the situation that the connecting positions of the heating and ventilation pipeline bodies and the pipeline compensator are loosened and leak due to thread loosening in the follow-up process is prevented, and therefore normal use of the heating and ventilation pipeline bodies in the follow-up compensation process is guaranteed; and meanwhile, the compensation process can be very stable, the defect that the stability is poor in the using process due to the fact that the compensation action is too large in the past is overcome, the structure is simple, and operation and use by people are facilitated.

Description

technical field [0001] The invention relates to the technical field of pipeline construction, in particular to a construction method for a large compensation HVAC pipeline. Background technique [0002] The thickness and specifications of HVAC pipes can be changed according to requirements. Usually, when connecting, both ends of the air pipe are always externally connected to accessories (such as elbows, reducers). Under normal circumstances, there are no grooves at both ends of the heating and ventilation pipes and there are sealing rings. HVAC pipes have a wide range of applications. Purification system return air duct, central air conditioning ventilation duct, industrial air supply and exhaust ventilation duct, environmental protection system suction and exhaust duct, mine extraction gas pipe, mine rubberized cloth air duct, etc. [0003] Pipeline compensators, also known as expanders or expansion joints, expansion joints, are mainly used to compensate for thermal expa...

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Problems solved by technology

[0005] However, the construction and installation of the existing HVAC pipelines with a large amount of compensation is generally time-consuming and laborious, and the entire operation process is troublesome. Since the compensator is usually installed between the two pipeline connections, the pipeline is installed and connected. In the end, it is often loose and leaked due to the unstable installation of the compensator, which affects the subsequent normal use of the HVAC pipeline; and the compensation after installation is not stable, resulting in poor stability during use. For this reason, we provide A large compensation HVAC pipeline construction method is proposed to solve the above problems

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