Steel pipe it is widely used where both the properties of steel and resistance to corrosion are required, such as Petroleum Industry, Refinery Chemical, Power Engineering, Shipping Building, Pharmacy&Biological Engineering, Food and Brewage industry, Mechanical and Automobile industry etc.
Everyone knows that oxygen pipelines should avoid oil and be degreased. Today we will introduce the degreasing method for oxygen pipelines. Degreasing, as the name suggests, means removing oil stains from the inner and outer surfaces of pipes. Degreasing is a key process in the construction of oxygen pipelines. Once oil contamination is inside the […]
1. Scope of construction XX power plant 1×135MW project, drop pipe, collector butt material are carbon steel, specifications are: φ426×40, φ325×35 and φ273×40. This operation guideline is applicable to the preheating and post-welding heat treatment construction of carbon steel large diameter pipe welds, as well as to the heat treatment of its reworked welds. The […]
In the current offshore oil engineering, pipeline design has become an important link, and the quality of pipeline design determines the success or failure of the offshore petrochemical engineering. Therefore, under this background, we should fully realize the importance of pipeline design in offshore oil engineering, and fully realize the impact of stress conditions on […]
The heat tracing design of pipeline plays an important role in real life. In the design, scientific and technical personnel need to determine the heat tracing coefficient and design quota based on the actual situation, so as to ensure that the heat tracing pipeline design meets the actual production requirements and meet the actual production […]
Using the combined welding method of GTAW+GMAW-P, the transverse and vertical welding positions of the 12 mm thick S32750 super duplex stainless steel plate were tested. The selection of welding methods, materials, grooves, process parameters, as well as the cleaning, preheating and interpass temperature control before welding were introduced in detail. After welding, tensile test, […]
There are many kinds of pipelines used to transport gas, which must be determined according to the service conditions (design pressure, temperature, medium characteristics, area of use, etc.) of gas, welding performance of data and other factors after technical and economic comparison [1,2]. 1. Determination of steel grades of high pressure and sub high pressure […]
What is piping heat tracing? Pipeline heat tracing is a kind of constant temperature or heating method to prevent the material in the pipeline from crystallizing and solidifying or to meet the process demand, and to keep the material at a certain temperature. Electric heat tracing system is the use of electrical energy into heat […]
Leakage at the threaded connection of the pipe After the pipeline is watered and ventilated, there is moisture and air leakage at the threaded connection for the following reasons. (1) The processing of the pipe’s fillet does not meet the requirements, and the fillet is too deep and worn, causing leakage at the threaded connection. […]
Pick the best places, warehouses The places, warehouses to keep steel materials needs to be cleaned, easy for drainage, from the factories and mines that generate harmful gases or dust. Be sure to remove every one of the debris, weeds to keep the steel clean. Inside the warehouse, salt, cement, and materials that may corrode […]
What are the general requirements for equipment layout design? Meet the requirements of the process flow, and the disposition of equipment should be in the order of logistics. The fire separation distance among equipment, buildings and structures should be in accordance with the requirements for production safety and environmental protection. The installation of oil and […]