• cryogenic thermo-insulation material System 1
cryogenic thermo-insulation material

cryogenic thermo-insulation material

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Specifications

cryogenic thermo-insulation material
1.light weight
2.good uniformity
3.low thermal conductivity

cryogenic thermo-insulation material

Cryogenic insulation paper/radiation shield compositions:

Cryogenic insulation paper(P paper/Z paper)/aluminum foil(or aluminized polyester film) compositions are laminated of Cryogenic insulation paper and aluminum foil(or aluminized polyester film).These products can be wrapped to the cryogenic inner tank directly and no need to composite by user.  Therefore ,it can effectively reduce the waste of material and hugely increases efficiency. The width varies from 40mm to 1800mm.

Specification

technical specification aluminum  foil  aluminized polyester film
condition  anneal  vcauum aluminizing
Thickness  0.0065  0.012
surface oiliness without oil, not less than calss B on brush water test  No oil
Harmful Element(%)  Pb<0.01 Cd<0.01 As<0.01 /
Width  30-1780  30-1780

Q:Where is the source of natural gas in China
According to the state of natural gas reserves, it can be divided into three types: structural natural gas, water soluble natural gas and coal gas. The structure of natural gas can be divided into crude oil produced by the wet natural gas, and does not contain liquid components of dry natural gas.
Q:Bought a few gas, a person with only less than 2 months on the end of the bath, do not cook to eat, I feel very strange, I would like to ask a bottle full of gas is the weight of how much?
General household gas bottles empty bottles around 16.5KG (plus or minus a pound), gas is 12.5KG plus 29KG (some places there is gas is 14.5KG), the commercial big bottles, empty bottles and gas are 50KG plus 100KG.
Q:For example, 5000NM3/H of natural gas into the quality should be how to calculate,
The above algorithm is more accurate, but too cumbersomeI can introduce a simple estimation method for any gas, but not very accurateIt is known that the molecular weight of water molecules is 18 and the density is about 1 kg / LUsually converted to liquid or solid gas and gas that is at 20 degrees and a standard atmospheric pressure, the volume of about more than 1000 times, and specific to the water is about 1200 times. It is in 20 degrees, a standard pressure water vapor volume of 1.2 cubic meters.This 1.2 cubic meters of water vapor is from a liter of water (a kilogram) to change, so the water vapor density: 0.8333 kg / cubic meterThe density of natural gas:Molecular water vapor density * gas molecular weight, the amount of water=0.8333 * 16 18=0.7407 / kg / m3
Q:What is the amount of heat contained in a natural gas
So the calorific value per cubic meter is 33494.4 - 35587.8KJ.And 1 degrees =1kW*h=3.6*10^6J=3.6*10^3KJ.
Q:What are the similarities and differences between liquefied petroleum gas stove and gas stove?
Because the gas source is different, the calorific value of the gas, the gas pressure is also different. There are marked on the normal stove for natural gas or liquefied petroleum gas, two kinds of stoves can not be mixed, there will be dangerousDifference: nozzle a larger outlet, a small outlet
Q:Which side of the gas cylinder is screwed over there?
Gas cylinder clockwise, counterclockwise open. There will be an arrow on the switch handle.Turn the direction of the more tight, the more open the direction of the more loose.
Q:There is a gas range, not connected to natural gas. Put a jar inside. Just like the lighter gas, what's the name of the gas stove?
Or field gas stove, you need to connect with a dedicated fuel tank
Q:How to prevent gas explosion
6, forced air supply furnace, such as a sudden power failure blower, resulting in gas reflux, there will be an explosion.7, coke oven gas pipeline has been blowing plastic equipment, and inspection, if the residence time is long, the accumulation of material within the device heating volatile, especially naphthalene sublimation of mixed gas and air to reach the same fire explosion, explosion.8, the burner is not strict, gas leak furnace, before the ignition is not on the furnace ventilation treatment.
Q:Natural gas is not new energy? Why?
Conventional energyConventional energy, also known as traditional energy, the English name conventional energy, refers to the large-scale production and wide use of energy. Such as coal, oil, natural gas, nuclear energy and so on are a non renewable conventional energy. Primary energy for mass production and wide use. Traditional energy sources. Such as coal, oil, natural gas, water, is to promote social progress and civilization, the main energy. When it comes to energy issues, it refers to conventional energy sources. Hydropower is renewable energy, such as the Gezhouba Dam hydropower station and the Three Gorges hydropower station, as long as the Yangtze River water does not dry, power generation will not stop. Coal and oil and gas are not, they are formed in the earth's crust in the tens of millions of years, these energy can not be regenerated in the short term, so people have a sense of crisis is very natural.
Q:How to do natural gas leakage
Do not put flammable and explosive articles around the gas stove, do not put heavy pressure on the gas pipeline. It can be used to check whether the leakage of the stove, the pipe and the connecting hose. Put the soap water on the outlet hole of the stove, or the connecting port of the pipe, the hose and the cooker.Should pay attention to, don't hang dishcloth, natural gas pipeline in the wet towel wet goods. For a long time to put these wet clothes, the pipeline is easy to rust, but also broken. A wet rag with salt or acid can also corrode iron pipes and shorten the life of pipes.

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