1 Introduction:
I developed the production of " inner sleeve insulating support block" and "casing end seals " and other public works pipe fittings , mainly used in gas, petrochemical , power, metallurgy , chemical , and utilities for execution under the gas drainage pipeline system transportation field , China National Petroleum products are included in the company's " pipeline crossing construction norms ."
This product has the following advantages over the steel products :
Good protection performance, the competent coating , insulation layer without damage.
Good dielectric properties, insulation isolation between the main channel and the casing of the cathodic protection series has a protective effect .
Good insulation performance , eliminate the thermally conductive metal stent , does not damage the insulation layer, the coating reduces the energy consumption of the pipeline .
High chemical stability , resistance to oxidation , acid , alkali, salts and oils.
Construction and installation easy. The article friction , light weight , lubrication drag reduction, through the casing easy , uniform force and the like.
Insulating support block inside the casing installation instructions
1 pipe insulation support spacing is based on wall thickness and the transmission medium is determined , the general support spacing is 1.5-2.0 meters from the top .
2 . Crossing supervisor ends ( within 1 meter casing ) insulation installed two support brackets mounted side by side , in the middle distance even installed according to design requirements . Head through the end ( the casing 1 meter ) two stand side by side .
(3) After the casing when the casing is made of steel , according to the construction process requirements, if the sleeve length greater than 80 meters , crossing the front head of the casing pipe can be used through the guide pulley, when executives across the casing , the pipe through the guide blocks demolition available for reuse .
4 concrete casing casing when crossing a length greater than 30 meters , to prevent excessive wear insulating support block , head of the casing through the addition of pipeline crossing the front guide blocks , guide blocks supplier specifications are designed and manufactured according to specifications of the casing the .
5 inner sleeve insulation sheet support block without reprovision within each piece will include a 3 mm thick pipeline construction to meet the technical requirements of the insulation sheet , construction and installation , simply connect each insulated support blocks with matching bolts. But air travel is used to adjust the bolts fastening the insulation level of support block and heads . Each support block insulation installed in the pipe evenly spaced surface , fastening bolts can be.
