tianlong

　　Generally speaking, summer is the traditional low season for LPG consumption, but the spot price in the second quarter has basically been at the bottom, and the market bottomed out early. Therefore, it is expected that the rebound in the market may come early. 　　 The picture shows the main contract daily line of LPG 　　The price of CP in July was slightly higher than market expectations, superimposed on the gradual recovery of the global economy, and the price of crude oil fluctuated upward, which gave a certain boost to the domestic liquefied gas market. At present, the market chemical demand is steadily increasing, and the price of liquefied gas is ready to rebound. 　　 CP price is released in July 　　Saudi Aramco announced the CP price in July 2020. Propane was US$360/ton, an increase of US$10/ton from the previous month; butane was US$340/ton, an increase of US$10/ton from the previous month. The landed cost of propane is about 2827 yuan/ton, and that of butane is about 2671 yuan/t...

　　 Correct use of liquefied gas cylinders 　　In rural areas, almost every household now uses bottled liquefied gas. Generally, every household uses a bottle of liquefied gas and stores another bottle of liquefied gas at home. More than a decade ago, most families would go to the filling station to replace the bottled liquefied petroleum gas. Nowadays, the household bottled liquefied petroleum gas is mainly replaced by the gas provider driving the battery tricycle. 　　1. Liquefied gas cylinders should be placed in a place that is easy to move, ventilated and dry, and not easy to corrode. It is forbidden to be placed in a sealed cabinet; 　　2. Liquefied petroleum gas cylinders are strictly prohibited from being exposed to the sun, near open flames or places with high temperatures, and forbidden to grill with fire or pour with boiling water; 　　3. The liquefied gas cylinder should be used upright, and it is strictly prohibited to use it upside down or lying down; 　　4. LPG cylinders are strict...

　　It can be said that "the liquefied gas cylinder fires after extinguishing, then close the valve" is a false rumor. Our real practice should be to close the valve and then extinguish the fire after the liquefied gas cylinder fires. 　　Extinguish the fire first and then close the valve. There is a safety hazard in this operation. Because after the flame is extinguished, the valve is not tightly closed, and the gas may leak and accumulate in the air, and there may be an explosion! When the valve of the liquefied gas cylinder is intact, the first choice is to close the valve. 　　Then, let's explain to you in detail that once the liquefied gas cylinder is on fire, you can take different disposal measures according to the site situation: 　　The first case where the liquefied gas is on fire is better. Although the liquefied gas tank is already on fire, when the valve of the liquefied gas cylinder is intact, we immediately close the valve as soon as the valve is turned off and it...

　　It is understood that the service life of the general liquefied gas cylinders is 15 years, and the steel cylinders with a capacity of 15 kg and 5 kg must undergo a mandatory "physical examination" every 4 years, and the 50 kg steel cylinders need to be tested every 3 years. 　　The current safety hazards of liquefied gas cylinders are mainly due to overdue inspections and don’t sell them to individuals after they are scrapped. Many people have misunderstandings about liquefied gas cylinders. Some citizens once stored scrapped steel cylinders at home or sold them to private individuals to allow scrapped cylinders to continue to circulate in the market, which are likely to cause safety accidents. The quality inspector said that many people think that they have run out of liquefied gas, or open the valve to release the gas, and there is no liquefied gas in it. This view is not correct. Scrapped steel cylinders are deflated by special tools in the laboratory, and there will stil...

　　Liquid gasification danger: Because the liquefied petroleum gas in the liquefied petroleum  gas cylinder  is a high-pressure liquefaction method (its original volume is compressed to 1/250), it is poured into the steel cylinder. Once the steel cylinder is placed horizontally, the liquid will immediately flow into the atmosphere and will expand immediately. 250 times, if there is any fire source during the expansion process, it will be dangerous; 　　Risk of heat generation due to friction: when the LPG cylinder is standing, the contact area between the liquid and the gas is small, which is safe; if it is placed horizontally, the contact area between the liquid and the gas is large, which is more dangerous; especially when it is shaken horizontally, the friction area between the liquid and the gas expands 3. The increased frequency will make the liquid vaporize and pressurize and affect its safety. If there is a heat source nearby, there is a danger of explosion; 　　The on-off v...