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There is no need to pay attention to them, it is complete nonsense, the calorific value of natural gas will vary slightly due to different methane content, but as long as it is a natural gas cooker, it can be used.
In addition, it should be reminded that there is still a difference between liquefied gas stoves and natural gas stoves, and natural gas will not burn enough when used on liquefied gas stoves, so you still have to choose natural gas stoves, which are generally sold in kitchen supply stores, and there are all kinds of prices.
The liquefied gas stove can also be transformed into a natural gas stove, and the cost is not high, and the cost of replacing a damper can be replaced by thirty or forty yuan, but if the replacement is not good, it is easy to temper, so if you are not using a big-name stove, it is not recommended to transform.
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Meet the requirements of the National Standard of the People's Republic of China GB 16410-2007 "Household Gas Cooker".
Natural gas refers to all gases that exist naturally in nature, including gases formed by various natural processes in the atmosphere, hydrosphere, and lithosphere (including oilfield gas, gas field gas, mud volcanic gas, coalbed methane, and biogenerated gas, etc.).
Combustion value refers to the calorific value, also known as the calorie value or calorific value. In fuel chemistry, the combustion value refers to the amount of heat emitted per unit mass (or volume) of fuel when it is fully combusted. It is an important indicator of fuel quality.
Natural gas in everyday life usually refers to oilfield gas and gas field gas. Its composition is dominated by hydrocarbons and contains non-hydrocarbon gases. Natural gas has different combustion values depending on the place of origin, etc., and when used as a domestic fuel, the combustion value will be blended into different grades that meet certain standards.
The combustion characteristics of urban gas are expressed in terms of Huabai number (the ratio of the calorific value of gas to the square root of its relative density). There are five kinds of white gas in China: 3t, 4t, 6t, 10t and 12t.
When designing different stoves, they must meet the specifications of air tightness, heat load, combustion conditions, temperature rise, thermal shock resistance and other indicators according to the requirements of the national standard GB 16410-2007 "Household Gas Cooker" according to the national standard GB 16410-2007 "Household Gas Cooker".
In fact, for most stove products from most manufacturers, the difference between products used for different natural gas is only the caliber of the gas nozzle.
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There is a difference between the composition and calorific value of natural gas and petroleum liquefied gas and coal gas, so a special natural gas cooker must be used, but basically the calorific value and composition of natural gas are basically the same, there is no difference between different places, as long as you choose the stove produced by a regular manufacturer with relevant safety qualifications and certificates, there is no problem, many shopping malls have sales, and you do not necessarily have to use natural gas companies. In many places, natural gas companies take advantage of their monopoly position to force or semi-coerce to sell their own natural gas appliances to users, which is an illegal operation, and users can file complaints with the local industrial and commercial departments.
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One, more than 1,000 yuan? If you want to make money through this, you are sure, and you can earn a lot. Second, the so-called burning value problem is just scary, which is not directly related to safety issues, but natural gas is more durable, that is, the same amount of gas, more heat is released.
Third, the safety issue is a problem, but the key to the problem lies in the sealing and installation of the natural gas pipeline and the interface with the stove, which is not fundamentally different from liquefied gas. Regular stovetops are also available. Fourth, residents can unite to report problems to the relevant departments and to the **.
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The size of the interface, because the calorific value of natural gas of the same volume is not as high as that of liquefied gas, so when the stove reaches the rated power, the amount of natural gas used is larger than the amount of liquefied gas, and the general natural gas cooker interface varies from DN15-DN50, mainly depending on itself.
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Natural gas has a large combustion value.
The combustion value is the calorific value, and the calorific value of each cubic meter of natural gas is about 8500 kcal; Liquefied gas generally refers to coal gas, and the calorific value of gas per unit volume is 3000 kcal.
Obviously, the combustion value of natural gas is larger.
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Natural gas has a large combustion value.
The combustion value of liquefied petroleum gas is about coul kilograms, the combustion value of natural gas is about coke cubic meters, and the density of natural gas (gas): g cm3 standard unit.
The average calorific value of natural gas can be measured in megajoules per cubic meter. The calorific value by volume is more commonly used, but the calorific value of natural gas that is easily liquefied above propane can also be calculated by mass. The unit of calorific energy is kilojoule m3 or kilojoules
Playing frequency tu cubic foot, lbtu = 1055 06 joules.
Therefore, the calorific value of natural gas is about twice that of liquefied petroleum gas.
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The combustion value of LPG is about coul kilograms.
The combustion value of natural gas is about coul cubic meters.
The density of natural gas (gas): g cm3 standard unit, so the calorific value of natural gas is about twice that of liquefied petroleum gas.
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Liquefied petroleum gas (referred to as liquefied gas) is a kind of petroleum tail gas left in the process of refining gasoline, kerosene, diesel, heavy oil and other oil products. Its main components are ethylene, ethane, propylene, propane and butane, etc., which are liquid in the gas cylinder, and once they flow out, they will vaporize into combustible gas about 250 times larger than the original volume, and are very easy to diffuse, and will burn or ** when encountering an open flame. Therefore, special attention should also be paid to the use of liquefied gas.
Natural gas is a broad term for naturally occurring gases buried in formations. However, the so-called natural gas usually refers to a hydrocarbon-rich combustible gas stored in the deeper part of the formation, while natural gas that coexists with oil is often called oilfield associated gas. Natural gas is converted from organic matter hundreds of millions of years ago, and the main component is methane, in addition, according to different geological formation conditions, it also contains different amounts of low-carbon alkanes such as ethane, propane, butane, pentane, hexane, and non-hydrocarbon substances such as carbon dioxide, nitrogen, hydrogen, sulfides, etc.; Some gas fields also contain helium.
Natural gas is an important energy source that is widely used as city gas and industrial fuel; In the 70s, natural gas accounted for about 18 19 of the world's energy consumption. Natural gas is also an important chemical raw material.
The calorific value of natural gas combustion per cubic meter is 8000 kcal to 8500 kcal.
The calorific value of combustion per kilogram of liquefied gas is 11,000 kcal. The specific gravity of gaseous liquefied gas is kilogram cubic meters. The calorific value of combustion per cubic meter of liquefied gas is 25,200 kcal.
In this way, it can be seen that the calorific value of one cubic meter of liquefied gas is three times that of natural gas, but there are reports that the calorific value of liquefied gas is seven times that of natural gas.
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The simplest answer, of course, is that the combustion value of natural gas is larger
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The calorific value of 1 kilogram of liquefied gas is 10,800-11,000 kcal; The calorific value of 1 cubic meter of natural gas is 8,000-9,000 kcal.
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Nowadays, more and more households are using natural gas, which is relatively more environmentally friendly and safer. What is the calorific value of natural gas combustion?
The calorific value of combustion of one cubic meter of natural gas is equivalent to the calorific value generated by 10kw of electricity.
The calorific value of one kilowatt-hour of electricity = , the calorific value of one cubic meter of natural gas = 36mj m.
36mj, that is, the calorific value of combustion per cubic meter is equivalent to the calorific value generated by 10 kilowatt-hours of electricity.
The calorific value of natural gas refers to the amount of heat emitted by the complete combustion of a unit quantity of natural gas. The heat of vaporization consumed in water is called the heat of vaporization (or latent heat of evaporation). The calorific value that includes the heat of vaporization is called the total calorific value (high calorific value), and the calorific value that does not calculate the heat of vaporization is called the net calorific value (low calorific value).
1. The calorific value of natural gas per cubic meter is 8,000-10,000 kcal.
2. The calorific value of each cubic meter of gas is 3000-4000 kcal.
3. The calorific value of combustion per kilogram of liquefied gas (propane) is 11,000 kcal. The specific gravity of gaseous liquefied gas is kilogram cubic meters. The calorific value of combustion per cubic meter of liquefied gas is 25,200 kcal.
4. Each bottle of liquefied gas weighs kilograms, and the total combustion calorific value is 159,500 kcal, which is equivalent to the combustion calorific value of 20 cubic meters of natural gas.
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Depends on the medium of combustion. Natural gas is a multi-component gaseous mixture of fossil fuels, the main component of which is methane. The combustion temperature of natural gas depends on the type, proportion, pressure, flow rate and other factors of the accelerant, and generally has the following situations:
1. The natural gas hall burns naturally in the air, the flame temperature is about 1000, and the external temperature of the flame is about 2000.
2. When the natural gas is burned in oxygen, the flame temperature can reach 3200 to 3400, which is the commonly used cutting temperature in industry.
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1 than. The calorific value of furnace gas is 1450 kcal per cubic meter, and the calorific value of natural gas is 8400 kcal per cubic meter. 8400÷1450=。It is the relationship of the multiplication. Therefore, the ratio of gas to natural gas in the gas generator is 1 ratio.
That is, the pressure of natural gas transported by the external trunk pipeline is very high, about dozens of kilograms, and the natural gas pressure used at home needs to be relatively low, about 3kpa, so an intermediate device is needed to adjust the natural gas pressure of the pipeline for civil use. These devices are placed in the house and are called pressure regulating stations.
Compressed natural gas (25MPa) is about 1 250 of the volume of natural gas of the same mass in the standard state.
Liquefied natural gas.
is to compress natural gas. >>>More
Oil and natural gas are formed by organisms in the earth's crust, and the corpses of these organisms go through various reactions to produce some oil, which forms natural gas or oil.
It is cheap to cook with natural gas, and electricity is a tiered electricity price, that is, for example, the electricity you are using now is the first tier, five cents per kilowatt-hour, and there are only five first-tier electricity per year, and when these five are used up, it will become the second-tier electricity price, and each kilowatt-hour of electricity will be much more expensive, so it is still cheaper to use natural gas.