SME Industrial

Generally, when the inner wall of the pipeline is smooth and the water flow is free to move, if the opened valve is suddenly closed, it will cause the instantaneous impact pressure of the water flow on the valve under the action of inertia, commonly known as the "water hammer phenomenon". This is also the true face of the strange noise at night in the residential area. When the valve is closed, the pressure generated by the pipeline is too high, which can easily cause the water pipe to burst, which is called "positive water hammer"; on the contrary, the pressure generated when the valve is opened is too low, which will cause the pipeline to collapse, which is called "negative water hammer." The common point is that they will all have a strong destructive effect on the pipeline, and the valves and fixtures themselves will not be spared. Another form of water hammer is called "steam water hammer",...

Breakaway Coupling  is a high-end safety valve commonly used in the chemical industry. Compared with the function of dry joints, the use of Breakaway Coupling  is more profound. As an emergency release device, the  Breakaway Coupling  is usually set at the weak connection point of the entire transmission link. When the set conditions are reached, the pipeline is disconnected and the valve is instantly closed, while the intermediate medium is self-sealed in the pipeline. Minimal dripping and relatively small pressure loss can effectively prevent leakage accidents caused by accidental rupture of pipelines. Applicable fields include ship-to-shore unloading, road and railway tank loading and unloading, and other fixed and mobile fluid storage devices, such as crane pipes, The connection between the fluid transport arm and the transport carrier. Under normal circum...

Nowadays, natural gas, which ordinary people usually use for cooking and heating, is also used as vehicle fuel. Compared with diesel, natural gas combustion produces very little pollution and does not produce any smell or smoke. Another advantage is that vehicles that use natural gas as fuel produce three times less noise than those that use diesel, so the vehicle can drive in urban areas without noise pollution. When natural gas is liquefied as fuel, it is commonly referred to as liquefied natural gas (LNG) . Specifically, it is obtained by condensation at -162°C. Compared with the gaseous state, the liquid volume is reduced by about 600 times. In other words, fuel tanks with highly enriched natural gas can provide trucks with a distance of more than 1,000 kilometres . When the vehicle is running, natural gas is injected into the engine in a gaseous state and converted into the power required by the...

The "South-to-North Water Diversion" project promoted by the China government in 2012 is a basic project to optimize the allocation of water resources and promote coordinated regional development. It is a strategic project with the largest investment and the most extensive coverage since the founding of China. South-to-North Water Diversion In the fact , the water supply area on the east line of China was densely populated, concentrated in cities, convenient in transportation, and rich in resources. It was an important energy and chemical production base and a major production area for agricultural products such as grain. The potential for economic growth is huge, but the contradiction between water supply and demand has become increasingly prominent. Water shortage has restricted economic and social developmen...

Liquefied petroleum gas (LPG) in the chemical field belongs to class A and A dangerous fire hazard with a very low flash point, easy combustion, large volume expansion coefficient and explosion risk. So the transportation operation has always been a relatively high-risk work. Common petrochemical gas discharge connection is mainly standard flange bolted connection. Before the operation, all staff must wear safety protective gloves in strict accordance with the regulations, and check the status of corresponding tools such as wrenches. In addition, the long-term maintenance of flange joints should be done regularly. From the early use of rubber asbestos gasket seals and 45 steel plain bolt combination; To a modified combination of metal wound gaskets with inner and outer rings and high strength bolts (35CrMo). Although the components have been significantly improved in anti-low-temperature ageing, sealing and bolt...

The petrochemical environment is full of high - risk inflammable and explosive goods, is a national high - risk industry. SME  Industry has the honour to provide professional and safe fluid connection solutions for the petrochemical market.  Shengjiang's newly produced "zero-drip” dry break coupling  is specially designed for high-end petrochemical fluids -- supply, supply, input and output operations. It is non-destructive, low consumption, safe， fast, and provides a strong guarantee for the safe transportation of petrochemical fluids. The petrochemical pipeline connecting ways, especially by moving the hose on the tank to dock depot accesses the connection pipes, from the early standard flange bolt connection (individually dismantling bolt of six to eight or even more), the evolution to the current common quick connectors on the market, namely the claw clasp type coupling - SME industrial ...