Pipeline trepanning process

Abstract

The invention discloses a pipeline trepanning process, which comprises the following steps of: determining positions of measurement sections and measurement holes, and respectively determining the number of the to-be-tested test sections on an air duct to be tested, the positions of the test sections, the number of the to-be-formed measurement holes on the test sections and the hole positions of the measurement holes; determining the opening size of the insulating layer; cutting the thermal insulation layer; forming holes in the air pipe; opening recovery and heat preservation layer recovery are carried out. According to the pipeline trepanning process, the method is simple in step, reasonable in design, convenient to implement, high in work efficiency and low in error rate, trepanning of the multiple measuring holes in the to-be-tested air duct can be rapidly completed, and the multiple measuring holes are all located in the same plane; the problem that due to the fact that multiple measuring holes in the same section of an existing air pipe exist, the local strength of the air pipe is reduced, and reinforcing is difficult is effectively solved, cutting is complete, damage is not likely to happen, the sealing effect is good, and pollution to a ventilation air conditioner system medium and damage to an air pipe heat insulation layer in the other measuring hole opening process can be effectively avoided.

Description

technical field [0001] The invention relates to the technical field of pipeline drilling, in particular to a pipeline drilling technology. Background technique [0002] The ventilation and air-conditioning system is composed of a ventilation system and an air-conditioning system. The ventilation system is composed of a supply and exhaust fan, air duct, air duct components, muffler, etc.; and the air-conditioning system is transported and distributed by air-conditioning cold and heat sources, air handlers, and air delivery pipes. And the automatic control and adjustment of the air conditioner to the indoor temperature, humidity, airflow speed and cleanliness. Nowadays, when using the "air duct method" to test the performance of ventilation and air conditioning systems, there is no unified and standard construction method to follow. In actual construction, there are inevitably problems such as random construction operations and poor test results. [0003] In the actual test, ...

AI Technical Summary

Problems solved by technology

Nowadays, when using the "air duct method" to test the performance of ventilation and air conditioning systems, there is no uniform and standard construction method to follow, and there are inevitably problems such as random construction operations and poor test results during actual construction.

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