repair paste after complete

repair paste after complete Insulation products can fill in the paste 3 the insulating layer of spherical container appropriate USES prefabricated arc board of forming paste adhesive should be dot blot out before on the slab floors and should be with the wall stick close Construction can paste a circle first equatorial belt as positioning and then paste the up and down order When vessel diameter is larger but in the south the north temperate zone and two positioning belt can also be used in the southern hemisphere with a vertical orientation with glue After paste activities should be in the south and the North Pole ring and between the group of locking ring on the equator with stainless steel belt tension spacing should be not greater than 30 mm 4 when using foam glass paste construction should be on the product side side combined with binder bonded to each other 5 large special equipment and pipe insulation blanket use semi rigid soft paste adiabatic products shop layer construction method should be adopted the layers of insulation products should be done step by step the seam pressure paste 6 on the construction of insulation blanket heat preservation should be adopted when the retaining bolt fixed pin and self locking plate wire and other methods for reinforcement when cold should use pin to reinforce When thermal barrier thickness is greater than 80 mm can be set up between the thickness of the thermal barrier layer and the outer wire fixation Alien and curved surface shall not adopt semi rigid insulation products 7 pouring construction 1 Casting method The wet material preparation good liquid raw materials or equipment within the mold and the outer wall of pipeline helping to shape the foam or curing forming a heat insulation construction method Liquid materials currently used more solvent polyurethane wet material is lightweight aggregate and the mixture of cement and water The method is more suitable for special shaped pipe insulation and insulation outside the ground or underground pipes 2 Pouring method thermal barrier construction requirements 1 pouring method adopted by the mold during the installation process should be set up temporary fixed facilities Template should level off flat fell seam tightly size accurate stable fulcrum should besmear to brush in the mould release agent Pouring type foaming material a layer of polyethylene film can be within the mold with patch of cloth 2 each ingredients must be finished within the prescribed time The production of block should be in pouring thermal barrier simultaneously 3 the large casting should set symmetric gate segmented shard And to pour material evenly sealing operations such as quickly to control the casting quality 4 should be a pouring casting molding when continuous pouring construction joint should be on the location of the expansion joints 5 pouring foam must not have bad fall off hair crisp crisp soft defects such as crack pore size is too large When the above defects must find out the reason pouring again 7 P169 eight spraying method 1 The spraying method Using mechanical and air mix liquid or aggregate feeding and to send the special gun mouth make its adhesion on the adiabatic and forming a kind of construction method The method belong to the ingredients and pouring method the forming of construction methods 2 Spraying method construction requirements 1 spraying construction should be according to the equipment material properties and the environmental conditions to adjust injection pressure and injection distance Spraying homogeneous continuous injection there should not be a dry material or coating surface Spray spray direction should be perpendicular to the surface spray gun should be constantly spiral movement Coating material after mixing atomization degree and the coating layer the uniformity of composition should comply with process requirements 2 the coating construction can draw on the fillet expansion joint marks or using hard insulation products spells build by laying bricks or stones method such as border control spraying layer thickness 3 when spraying should be bottom up layered Large area coating should be segmented shard Must be combined with good summer planting spray coating should be uniform 4 during spraying outdoor wind is greater than 3 heat fog and rain both unfavorable construction 9 method 1 The method In recent years successively appeared on the market a variety of thermal insulation coating can adopt the method of applying the laying on the surface equipment and pipeline Daub method can be construction under adiabatic objects in the running state Apply thermal barrier integral sex is good combined with thermal insulation surface is relatively strong simple construction 2 Construction requirements Thermal barrier when daub layered coating For upper dry coating again after the lower the thickness of each layer of shoulds not be too thick Thermal insulation coating layer coating construction set up according to the specific circumstances barbed wire 10 detachable type thermal barrier construction 1 The observation hole on the equipment or piping check points and maintenance of heat preservation the removable type structure should be adopted 2 The equipment or pipeline flange valve pipe fittings and manhole hand hole often disassembly and repair parts of the cold when the temperature of the medium or low hard semi hard materials appropriate for insourcing cold layer fixed covering appropriate for the removable type anti condensation structure 3 The equipment or piping flange adiabatic disconnect the insulation structure remove the distance should be set aside bolt Removable type structure of insulating layer thickness should be the same as the equipment or pipeline thickness of insulating layer Metal protective box baiting size determination shall ensure that the low cold layer thickness is not less than the cold insulation layer thickness of the pipe or equipment body 4 The detachable type thermal insulation structure appropriate for the two parts of adiabatic metal box combination form its size should be adapted to the physical appropriate USES two parts connect buckles 5 Cold equipment or pipeline the removable type structure must be sealed with fixed structure 11 metal reflective insulation structure construction 1 Metal reflective insulation structure By using the reflection of high and low radiation metal materials such as aluminum foil polished stainless steel plate etc of insulation structure The adiabatic principle mainly is to reduce radiation and convection heat transfer to make it fully play the role of heat shield and heat insulation 2 Metal reflective insulation structure construction requirements 1 metal reflective insulation structure parts can be made of plate sheet plate the IF within the end of support outsourcing and interval pad End bearing with internal and external plate fixed riveting or welding 2 the equipment and pipe surface and the air space between the metal plate within the reflective insulation structure should be determined according to the requirement of the design documents This gap of interval pad should be adopted 8 P170 3 the seams of the outer plate with a slightly thicker than plate of outsourcing when using plate extends its lap should not be less than 50 mm overlapping plate should be smooth flow direction 4 when the metal reflective insulation structure of fixed plate does not need to dismantle rivets or screws available take outsourcing on a board outside the fixed connection When it is oft