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2021 / 11 / 23
There are two types of liquefaction tanks used by citizens. One is the screw connection between the cylinder shield and the bottle body, referred to as "screw bottle"; the other is the connection between the cylinder shield and the bottle body by electric welding, referred to as "welded bottle". ". According to national regulations, the safe use period of liquefied gas tanks is only 15 years, and regular inspections are required every 4 years. Since there is no permanent mark on the bottle body of the "screw bottle", since September 1996, the state has clearly stipulated that the "screw bottle" must not be reproduced. That is, the last batch of "screw bottles" produced is more than 15 years old and must be scrapped. The normal service life of liquefied gas tanks is generally 15 years. Within 12 years after leaving the factory, liquefied gas tanks must be tested every 4 years, and must be scrapped for more than 15 years. Of course, some cans that cannot be used for various reasons can not be used again. Don't put your family's safety due to your negligence.
2021 / 11 / 28
A liquefied gas tank refers to a storage tank used to store liquefied gas. When there is liquefied gas inside, the pressure is very high, and a slight improper operation may cause an explosion. It is a special equipment. The product itself is made of steel and has a certain resistance to pressure. The maximum pressure of the liquefied gas cylinder is 2.1 MPa. The pressure of liquefied gas at 20 degrees Celsius is 0.8 MPa, and the pressure at 40 degrees Celsius can reach 1.59 MPa. If the volume of the liquefied gas remains the same, the pressure will increase by 0.04 MPa for every 1 degree Celsius increase in temperature, so each cylinder can only be filled with 85%, which is 14.5 kg. Do not use warm water to heat the cylinder when the tank is empty, otherwise it will cause a physical explosion. Therefore, liquefied gas tanks must use manufacturers with relevant manufacturing qualifications to produce or use qualified products GAS COMPOSITION First of all, what is gas? In chemistry, gas refers to a colorless and odorless mixture of methane-based gas generated from biological fossils. In daily life, gas does not specifically refer to a kind of gas, but a general term for several types of gas, which can be divided into three categories: liquefied petroleum gas, natural gas, and coal gas. Both liquefied petroleum gas and coal gas are made artificially. Natural gas is commonly known as natural gas. The gas we use daily is mainly liquefied petroleum gas and natural gas. It should be noted that the gas in what we usually call a "gas tank" is not coal gas, but liquefied petroleum gas. The main components of liquefied petroleum gas are propane and butan
CNG GAS CYLINDER PRECAUTIONS FOR USE
2021 / 12 / 01
1. The use and installation of compressed natural gas cylinders for automobiles should comply with the relevant standards, and should be refitted and repaired by a formal refitting factory with CNG auto refitting qualification issued by the province, including installation and disassembly of gas cylinders. It is strictly forbidden for unqualified units to modify, repair, disassemble and inspect the gas cylinders. Do not dig, repair, weld and repair the gas cylinders. The original manufacturing labels and nameplates of the gas cylinders should be complete, the content should be complete, and the steel seal should be clear; No permanent deformation, the bottle valve should be intact; 2. The safety status of the gas cylinder and its accessories should be checked before and after filling; the filled gas must undergo dehydration, desulfurization and light oil removal. .Overpressure filling is strictly prohibited, the natural gas in the bottle must not be used up, and a residual pressure of more than 0.1 MPa must be left; the working pressure of the gas cylinder is the limited filling pressure at the reference temperature (20℃), and the filling pressure of the gas cylinder should be Adjust according to the actual air temperature during inflation, and its temperature compensation value should be in accordance with the regulations of the inflatable station. The new gas cylinder should be vacuumed before the first inflation; 3. During the use of the cylinder, it is found that the amount of air added does not match the usual mileage, or if the pressure in the cylinder drops significantly after a period of exercise, you should be vigilant and check for leaks in time. When there is serious corrosion, damage or doubt about its
2021 / 11 / 27
CNG cylinders are high-pressure containers used to store compressed natural gas. This high-pressure container containing flammable and explosive gas is a pressure container with explosive danger. The gas storage pressure of the vehicle cylinder is 20MPa. CNG is the English abbreviation of Compressed Natural Gas, the English word for compressed natural gas. Compressed natural gas generally refers to gaseous natural gas (methane as the main component) that can be used as fuel for vehicle engines after multi-stage pressurization to about 20MPa. CNG cylinders are divided into four categories The first category is steel or aluminum alloy metal bottles (CNG-1); The second category is a composite gas cylinder (CNG-2) with steel or aluminum lining and a cylinder body reinforced with "hoop winding" resin impregnated long fibers; The third category is composite gas cylinders (CNG-3) reinforced with steel or aluminum lining and "wound wound" resin impregnated long fibers; The fourth category is composite gas cylinders (CNG-4) reinforced with plastic linings and "wrapped" resin-impregnated long fibers. Each of these types of gas cylinders has its own advantages and disadvantages, and can be selected and used according to different models. At present, steel gas cylinders are mainly used in my country, whose performance must meet the requirements of GB17258 "Compressed Natural Gas Cylinders for Automobiles". Generally, high-quality chromium-molybdenum steel is used as the material of the cylinde
2021 / 11 / 30
Acetylene gas cylinder refers to a special pressure vessel filled with filler for storing and transporting acetylene. The appearance is similar to the oxygen cylinder, the surface is painted white, and the words "acetylene" are written in red paint. The acetylene gas cylinder is equipped with porous filler immersed in acetone, so that the acetylene can be safely stored in the bottle. When in use, the acetylene dissolved in acetone becomes gas and separated out, while the acetone remains in the bottle so that it can be filled with acetylene again. Acetylene is a flammable and explosive substance, so the explosion-proof nature of acetylene gas cylinders should pay attention to: 1. Acetylene gas cylinders should be supplemented with acetone according to relevant regulations, and should not be excessive; 2. Determine the acetylene filling volume according to the acetone volume, strictly control the filling speed, and prohibit excessive filling; 3. Use qualified acetylene gas cylinders. Pay attention to: 1. The place where the acetylene bottle is placed shall not be close to heat sources and electrical equipment, and the distance from the open flame shall not be less than 10m; 2. Use upright; 3. It is strictly forbidden to place it in places with poor ventilation or radioactive ray sources; 4. It is strictly forbidden to knock, collide, arc off the bottle or place it on the insulator; 5. Exposure to the sun is strictly prohibited, and it is s
2021 / 11 / 29
For the safety of you and your family, please do not use expired LPG cylinders.
CLASSIFICATION OF FIRE EXTINGUISHERS
2021 / 11 / 26
There are many types of fire extinguishers. According to their moving methods, they can be divided into: portable and cart type; according to the power source of driving the fire extinguishing agent, they can be divided into: gas cylinder type, pressure storage type, chemical reaction type; according to the fire extinguishing filled The agent can be divided into: foam, dry powder, halogenated alkane, carbon dioxide, water and so on. Dry powder fire extinguisher Principle: The dry powder fire extinguisher is filled with dry powder fire extinguishing agent. Dry powder fire extinguishing agent is a dry and easy-to-flow fine powder used for fire extinguishing. It is composed of inorganic salt with fire extinguishing effect and a small amount of additives through drying, crushing and mixing to form a fine solid powder. Use compressed carbon dioxide to blow out dry powder (mainly containing sodium bicarbonate) to extinguish the fire. Structure: The dry powder fire extinguisher uses carbon dioxide gas or nitrogen gas as power to spray the dry powder in the bottle to extinguish the fire. Dry powder is a kind of dry, easy-to-flow fine solid powder, which is composed of a base material capable of extinguishing fire and additives such as moisture-proof agent, flow promoter, and anti-caking agent. Foam fire extinguisher Principle: There are two containers in the foam fire extinguisher, which respectively hold two liquids. They are aluminum sulfate and sodium bicarbonate solutions. The two solutions do not touch each other and do not cause any chemical reaction. (Never touch the foam fire extinguisher at ordinary times) When a foam fire extinguisher is needed, turn the fire extinguisher upside down. If the two solutions are mixed together, a large amount of carbon dioxide
2021 / 11 / 25
The fire extinguisher is a portable fire fighting tool. Put chemicals in the fire extinguisher to put out the fire. Fire extinguishers are one of the common fire prevention facilities. They are stored in public places or places where fires may occur. Different types of fire extinguishers have different ingredients and are designed for different fire causes. Attention must be paid to avoid adverse effects and dangers during use. The world's first fire extinguisher was born in 1834. In London, a fire almost completely destroyed the ancient Palace of Westminster, where the British Parliament is located. Among the many fire watchers, there is one who is not idling to see the fire scene. He is George William Manby. Manby was born in Norfolk. He served as the commander of the Yarmouth Barracks as a young man from the army, officer to captain. This idle position allowed him time to devote himself to the cause of saving human lives that strongly attracted him. Earlier, he was keen on shipwreck rescue. He invented the pants-shaped lifebuoy and was the first to propose the use of lighthouse flashes to identify signals. Later, Manby turned his genius from marine rescue to fire rescue. When a fire broke out, he was experimenting with fireproof clothing. His most remarkable and pioneering contribution was his invention of a portable compressed gas fire extinguisher, which is a copper cylinder two feet long, eight inches in diameter and four gallons in capacity, which is basically the same as today's fire extinguishers. He put the fire extinguisher in his specially designed trolley. He hoped that a patrol team equipped with such a fire extinguisher would immediately extinguish the first small fire at the fire site, thereby reducing the number of major fires.
HOT SALE OXYGEN CYLIDNER FOR MEDICAL USE
2021 / 11 / 24
HOT SALE TYPE OXYGEN CYLIDNER FOR MEDICAL USE Nominal water capacity(L) 40L Nominal Diameter(mm) 219mm Nominal working pressure(bar) 150bar Test pressure(bar) 250bar Wall thickness(mm) 5.7mm Color Customer's request Valve Customer's request Weight 48kg(without valve or cap) Main purpose and scope of application:
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Ms. JOSIE LU
Tel:+86-0523-85111534
Fax:86-0523-84818388
Mobile Phone:+8615161056186
Email:josie@cnmngroup.com
Address:NO.1 LISHI PIONEER PARK, XINQIAO INDUSTRIAL PARK, JINGJIANG CITY, Taizhou, Jiangsu
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Privacy statement: Your privacy is very important to Us. Our company promises not to disclose your personal information to any external company with out your explicit permission.