Thermal retrofitting uses pur-polyurethane to keep the thermostats in a vacuum design that can more effectively keep the temperature and reduce the corrosion of the inner walls of the coats. In a vacuum, the work pipe's temperature layer and coat
There's a gap of about 10-20 mm between the tubes, which can serve both to keep them warm, and to bury them directly in an extremely smooth stream, making them real
It is working as a timely drain and as a signal pipe. This way, temperature insulation is efficient, preservative to corruption, long operational life, polyurethane hair-preventing steel tubes. Long
Introduction to zui's economy's directly buried thermostats: polyurethane hair-bulb-to-temperature tubes, also known as prefabricated thermostats, are a warmer function, plus*** workers
Low-cost polyurethane piping. *** temperature, smoothing and lubrication of pre-preventable heating tubes at 600°c in urban central heating slide
And the waterproof end of the naked pipe. Polyurethane bubble-preserving steel tubes/prefabricated thermostats not only have traditional gavages and empty piping ***
Practical performance, with social and economic benefits, is also a powerful energy-saving measure for heating. Prefabricated heating pipes are operated using direct burial plumbing
The technique marked a new beginning for the development of chinese heating pipelines. Conservative tubes are an important factor affecting energy conservation, and their development and application is increasing
It is widely valued。
Polyurethane thermostat plant
Thermally retrofitted direct polyurethane (pur)-polyurethane bubble-preventing steel pipe works can be widely applied to external wall temperature protection, roof temperature protection and special areas such as cold storage, grain storage, archives, plumbing, door windows, etc
Temperature. Pur thermostats should take the following safety measures during spraying and be safe for construction. Polyurethane thermostats are protected by steel pipes, with
High-intensity, undamaged and able to withstand the characteristics of a larger upper load. In order to achieve a long life, steel coatings need to be decorated
(c) technology for the production of urethane irrigation, spraying and glass steel piping, for the production of ***-prefabricated directly buried vapour piping series. For the delivery medium
High-temperature high-pressure characteristics, where the product normally uses composite thermostats (inorganic and organic insulation) for pre-temperature piping preparation
Make sure you cover up. Pur foam splatters when sprayed during pur-pcp construction and construction personnel should be labour-protected and rigorous
Respect for high-altitude operating safety codes, with attention to protective measures such as helmets and seat belts, especially in the context of basket construction ***
Measures to prevent the fall of the basket. Polyurethane thermostats should be shielded around the spray operation to avoid environmental contamination。
Polyurethane thermostat plant
Thermal retrofitting of the pur plant-polyurethane bubble-preserving steel pipes does not require the construction of large trenches, but rather the burial of the pyrotechnic tubes into the ground, thus significantly reducing the number of project sites and the amount of excavated soil approximately
More than 50 per cent, reducing construction and concrete by 90 per cent. At the same time, pur is directly buried in parallel with on-site pyrotechnic processing and digging ditches, which can be scaled down by on-site contact
Short-term work is about 50 per cent or more. An alarm system can be set up to automatically detect leaks in the tube network, to accurately indicate the location of the failure and to automatically alert the polyurethane to the presence of a direct thermostat
Leaking alarm lines, if leaking somewhere in the pipe, can be shown on a special detector instrument by passing through the alarm line
The size of the position and leakage to notify the permeator of the prompt disposal of the leaked section of the tube*** for the safe operation of the heat pipe network. Weld welds and belts of steel pipes
Welds and loops should be tested*** or ultrasound. ***s*** or ultrasound shall be performed for a spiral welding of steel for flammable ordinary fluid transport
Wave tests, which shall be performed on screwweeds of steel pipes for ordinary fluid transport, such as water, sewage, air, heating steam* ** or ultrasound check (20%)
I don't know。
Polyurethane thermostat plant
Polyurethane bubble-prevent steel tubes should normally be connected in reverse direction to the current, with a dent to be dug in the position of the pivot prior to the connection, to be inserted and installed
Sandfill. When connected, check the mouths and plugs again, evenly apply lubricants (non-oil products, such as vegetable and animal oils) to the inner surface of the mouths, and then put two "os"
The type of ducts are placed separately in the slots of the plugs, and lubricants are applied。
Pipeline connections require the use of suitable mechanical aids and, for large caliber tubes, the pipe is suspended from the ground at the end of the plug to reduce friction between the pipe and the ground. If you don't
A crane can also be installed manually. Put them on two tubes installed and to be installed after zui, and symmetry them with two hands
Together, the latter two were working in a uniform fashion, and the tubes to be installed were to be pulled into the mouth。
In order to prevent the removal of installed tubes, two or three barcodings are generally integrated. Pipes below 116 m in diameter. Excavators are generally able to hang directly
The rational and safe use of excavators at the site can effectively reduce the installation of mechanical shifts. When using excavators as top-in equipment, do not use the arm-on approach
Upward, and forward slowly to the excavator's fight, between the cavity and the tube, you must have a pillow。
