Where is the importance of pipeline piping
Release time:
Dec 06,2022
Piping manufacturers believe that the pipeline of strong corrosive gas needs to use corrosion-resistant stainless steel pipe, otherwise the inner surface of the pipeline will produce corrosion spots due to corrosion, and in severe cases, large pieces of metal will peel off or even perforate, thus polluting the pure gas for transmission and distribution. In principle, the connection of large flow, high purity and high cleanliness gas transmission and distribution pipelines shall be all welded, and the structure of the pipeline shall not change during the welding process. When welding materials with excessive carbon content, the welding part is ventilated, so that the gas inside and outside the tube penetrates each other, which destroys the purity, dryness and cleanliness of the conveying gas, and all our efforts are meaningless.
Piping manufacturers believe that pipes are connected by pipes, pipe joints and valves to transport gases, liquids or fluids containing solid particles. Pipelines are common industrial equipment in both the petroleum industry and chemical plants. Into the petrochemical plant, you can see a variety of pipes, neat and beautiful more amazing. These are inseparable from the careful planning and professional knowledge of pipeline engineers. These are inseparable from careful planning and professional piping design.
Piping manufacturers believe that for gases with different characteristics, it is necessary to plan a separate supply area, which is generally divided into three areas: corrosive/Toxic gas zone, combustible gas zone and inert gas zone. Concentrate efforts to strengthen the management of similar gases. In flammable gas areas, blast walls and leaks should be specially planned. If there is insufficient space, inert gas can be placed in the toxic/corrosive gas area. The pipeline design needs to consider the transportation distance. The longer the distance, the higher the cost and the higher the risk. Generally, the reasonable design flow rate is 20 ml/S, the combustible gas is less than 10 ml/S, and the toxic/corrosive gas is less than 8 ml/s. In the dose design, the pressure and pipe diameter at the point of use need to be considered. The former is related to the gas characteristics, and the latter is generally 1/4 "~ 3/8".
The piping manufacturer believes that according to the distribution of gas-using equipment, the pipe network of high-purity gas should not be too large or too long. It is advisable to adopt an unclosed annular pipe to continuously discharge a small amount of gas at the end of the system, so that there is always high-purity gas circulation in the pipe network and there will be no occurrence.High purity gas pollution caused by "dead zone.
The piping manufacturer believes that the non-flowing gas in the pipeline should be reduced."Dead zone", there can be no blind pipe. A purging control device, I .e. a multi-valve control device, shall be set between the special gas cylinder and the gas equipment to control the opening and closing sequence of each valve and the system purging, so as to ensure the safe and reliable operation of the gas supply system, prevent the formation of "dead zone" and the retention of pollutants, and reduce the gas purity.
The piping manufacturer believes that the gas equipment with different requirements for high purity gas purity should adopt the graded high purity gas transportation system. The same level of conveying system can also be used, but the terminal gas purification device is arranged near the gas equipment with high purity requirements.
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