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: 0.3T gas steam boiler about one hour to burn a lot of natural gas: 1 tons of boiler =60 kcal. 0.3T boiler =18 kcal,The calorific value of natural gas is about 8600 kcal, 0.3T gas steam boiler theory about an hour by 21 party gas, taking into account the actual utilization efficiency of boilers and boiler, steam boiler 0.3T gas per hour the actual gas should stand in 15-25.

Q: My home is to use the gas water heater, the morning bath forgot to turn off the gas, home from work at night to bathe found gas is open to open the gas, and then I quickly shut off for a long time, but the gas meter shows why still open? Can I open the gas bath at this time, will the water heater on the explosion? There is my gas is not shining? Add a little...: Carelessness is not desirable, a slight negligence of danger! Go out to close the water electricity, the daily use of careful points! Window ventilation is the most important, the valve should be closed quickly. Habits form law, peace and happiness around!

Q: Want to install a detection alarm, but do not know whether it is installed on the ground floor or ceiling?: Natural gas is stored in underground porous rock, the main component of methane, the proportion of 0.65, lighter than air, with colorless, tasteless, non-toxic characteristics

Q: Ditto, or the history of the development of China's gas; thank you: June, Qinhuangdao to Beijing oil pipeline was completed in December 27, 1974, Daqing to Qinhuangdao oil pipeline has been completed and began to oil, so far, Daqing oilfield crude oil directly to Beijing. In July, the oil wells of the 4 well in the Gulf of Bohai were ejected from the ancient volcanic rocks in the carbonate rocks. 17 months, Changchun coal gas plant completed and put into production. July 3rd, Hebei, Renqiu hit a high-yield wells, found in Renqiu oilfield.

Q: Stainless steel pots and bowls can be placed on the gas burning? Will explode?: Black marks are hard to remove. So, as far as possible without the pot of stainless steel bowl directly on the fire to cook hot meals. Or use the pot with normal hot dishes better.

Q: Could you tell me the difference between liquefied petroleum gas and natural gas: Liquefied petroleum gas and natural gas composition is different, the amount of oxygen needed when they burn, under normal circumstances, the combustion of natural gas required for the amount of oxygen required for complete combustion of liquefied petroleum gas is less than the amount of oxygen. So, can not use exactly the same range. The original stove after the burning of natural gas, to reduce or increase the air intake vents. So you only need the air valve nozzle and the original stoves replaced for burning gas can, not too expensive. If you can change it by now spend little money for the stove nozzle and the valve plate you can use natural gas.

Q: Before the fire is blue now the fire is yellow and the bottom of the pot to burn black is the gas is not pure or stove need to adjust?: But why this yellow gas stove fire points: one is the uniform mixing of gas and air (a less air, less space or mixed); two is the combustion exhaust gas is not good (two times less air, increase the two air mixing area, which is discussed above); three is the gas fire the excess hole nozzle (fire hole and flow of the right size). There are several reasons for the yellow flame of the gas stove and the corresponding solutions are as follows: 1. The lack of primary air supply leads to bad combustion. Users can adjust the throttle plate, increase the air inlet area to solve, generally can make the flame from yellow to blue.

Q: Is piped gas natural gas: But people used to call all the domestic gas gas, including natural gas and liquefied petroleum gas.

Q: Natural gas toxic how should pay attention to: First of all, you need to know the difference between gas and natural gas.The main component of natural gas is methane and hydrogen, colorless, tasteless, high calorific value, full combustion, no impurities. Liquefied petroleum gas is the main component of four carbon below the hydrocarbon, colorless, tasteless, calorific value lower than natural gas, there are certain impurities. For a long time the use of liquefied petroleum gas kitchen cooking utensils, cooking stoves appear to have a layer of oil, which is liquefied petroleum gas combustion emitted by some of the organic matter. Coal gas is mainly produced by coking gas, it is the main component of carbon monoxide, but also contains a small amount of hydrogen, such as methane, although it is colorless, tasteless, then, why the toxic gas?

Q: How much gas is equal to 1: In addition to the ideal gas, PV=nRT, if the pressure changes, we must know the temperature and pressure before and after the change, in order to know the volume change.Or is a m under 20MPa is fand how many liters in standard condition, which makes sense, can be seen from the above formula, the temperature under constant pressure is inversely proportional to the volume of the box.

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