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Natural gas. Liquefied gas is easy to identify, and liquefied gas is not transported by pipeline, only by cylinder. The family bought liquefied gas cylinders, that is, liquefied gas.
There are artificial gas and natural gas transported by pipelines, and the composition is different: artificial gas is hydrogen and carbon monoxide, toxic gases; Natural gas is methane, non-toxic and colorless. Therefore, for safety reasons, most cities are now fully supplied with natural gas.
1. Liquefied gas is easy to identify, and liquefied gas is not transported by pipeline, only gas cylinders. So, what your family buys is a liquefied gas cylinder, which is liquefied gas.
2. There are artificial gas and natural gas transported by pipeline, and their composition is different: artificial gas is hydrogen and carbon monoxide, toxic gas; Natural gas is methane, non-toxic and colorless. Therefore, for safety reasons, most cities are now fully supplied with natural gas.
3. If you really want to know absolutely whether it is artificial gas or natural gas, you can start the experiment in these ways: different compositions and different calorific values. If you want to be simple and rude, just open the trachea valve directly and use your sense of smell to practice it.
Natural gas odorizes tetrahydrothiophene, which has a special odor and is harmless; Artificial gas has co, smells too much and is unwell.
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Pipeline gas is natural gas, because liquefied gas cannot be transported through pipelines, only in the form of gas cylinders, if you use gas cylinders at home, it is liquefied gas.
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The vast majority of China's domestic pipeline gas is natural gas; The main ingredient is methane.
ch4), which has a calorific value.
Due to the characteristics of colorless and odorless, special odor is artificially added in the conveying process so that it can be detected in time when leaking.
Precautions when using gas:
1. When using gas, do not leave without authorization, and keep ventilation to prevent carbon monoxide and carbon dioxide poisoning produced by natural gas combustion.
The installation place of the natural gas meter also needs to be ventilated and cannot be closed;
2. Do not put overfilled cooking utensils on the gas stove to heat, so as not to overflow the water to extinguish the flame and cause gas leakage;
3. In case of sudden interruption of gas supply, the valve should be closed until the normal ventilation notice is received, and then it can be used continuously;
4. Regularly check whether the gas pipeline is leaking, and if the leakage point is found, turn off the main valve in time, contact the gas company personnel to deal with it, and do not deal with it privately;
5. For long-used stoves, the switch may not be closed tightly, which will cause gas leakage, and the switch needs to be replaced in time;
6. When natural gas is not used, close the main valve and branch valves, and open the kitchen doors and windows to maintain ventilation;
7. Install and use gas leakage alarm devices to ensure home safety;
8. Regularly take the initiative to contact the natural gas company to detect leaks and check potential safety hazards.
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Natural gas. Pipeline gas is natural gas, because liquefied gas cannot be transported through pipelines, only in the form of gas cylinders, if you use gas cylinders at home, it is liquefied gas. ”
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Gas is neither natural gas nor liquefied gas. Gas is a general term for gaseous fuels, which can be burned and release heat, and are used by residents and industrial enterprises. There are many types of gas, mainly natural gas, artificial gas, liquefied petroleum gas, biogas, coal-to-gas, etc.
Types of gas: 1. Natural gas: Natural gas is mainly a mixture composed of low-molecular-weight hydrocarbons. According to natural gas**, it can generally be divided into five types: gas field gas (or pure natural gas), petroleum associated gas, condensate field gas, coalbed methane and shale gas.
2. Gas field gas: Gas field gas is the gas directly extracted from gas wells. The composition of gas field gas is mainly methane, with a methane content of more than 90%, and also contains a small amount of carbon dioxide, hydrogen sulfide, nitrogen and trace amounts of helium, neon, argon and other gases.
3. Petroleum associated gas: The low-hydrocarbon gas extracted with oil is called petroleum associated gas. The methane content of petroleum associated gas is about 80%, and the content of ethane, propane and butane is about 15%.
4. Condensate field gas: Condensate field gas is gas containing petroleum light fractions. In addition to containing a large amount of methane, condensate field gas also contains 2% to 5% pentane and other hydrocarbons.
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1.Gas is not natural gas and is not liquefied gas.
2.It is a general term for gaseous fuels, that is, gas emits heat in the process of combustion, and then provides it to residents and industries, and gas can be divided into natural gas, liquefied gas, coal gas and other types.
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for natural gas.
The development of city gas should implement the principles of unified planning, supporting construction, adapting measures to local conditions, rational use of energy, and paying equal attention to construction and management. The construction administrative department is responsible for the national city gas management. The local people's ** urban construction administrative departments at or above the county level are responsible for the management of urban gas within their respective administrative areas.
Local people at or above the county level shall organize planning, urban construction and other departments to prepare gas development plans for their respective regions according to the overall urban plan. The layout of new construction, reconstruction, expansion projects and business outlets of city gas shall conform to the city gas development plan and be approved by the administrative department of urban construction before implementation。 City gas construction funds can be raised through various channels such as investment, fund-raising, domestic and foreign loans, and bond issuance in accordance with relevant national regulations.
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Pipeline gas uses liquefied gas, and natural gas is available.
Household gas stoves can be divided into artificial gas stoves, natural gas stoves and liquefied petroleum gas stoves according to the type of gas.
These three kinds of stoves are generally not universal, the air pressure is not the same, the nozzle is different, and the liquefied gas used in the natural gas stove results in a particularly large fire. The biggest difference between the two cookers is the aperture of the nozzle, the nozzle aperture is smaller because of the high pressure of bottled gas, and the pressure is small when the pipeline gas is working, so the nozzle aperture is larger.
Therefore, if the special stove for bottled gas uses pipeline gas, the situation is: because the nozzle aperture is small, the pipeline gas supply pressure is small and the gas supply is insufficient, resulting in a small flame and insufficient firepower, and it is easy to extinguish the fire due to insufficient gas supply. If it is a special stove for pipeline gas for bottled gas, it is dangerous, because the nozzle aperture is large and the bottled gas supply pressure is large, resulting in too large a flame and out of control, resulting in the danger of fire, and because the oxygen in the mixture is not enough to cause incomplete combustion and pollute the air.
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Have you heard of piped gas? It is different from liquefied gas, but it is a combustion gas made by artificially burning coal and adding water to produce hydrogen, and many remote cities still use pipeline gas, although they are all transported by pipeline. Household.
But it's not natural gas. Natural gas is actually odorless, it is added by people, and it is taken into account for family safety. The sense of smell can tell the danger.
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Natural gas, which is mainly methane, also contains a small amount of hydrogen sulfide (in order that you may smell it in case of a leak).
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Natural gas. Liquefied gas is generally canned and in a liquid state! On 8673h...
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Pipeline gas has not been liquefied gas.
The earliest pipeline gas, which is the real gas, is the carbon monoxide gas produced in the production of coal, which is easy to burn, but very clean, so it is used for household cooking.
With the current popularity of natural gas, many pipeline gases have been changed to natural gas, because its calorific value is much higher than that of artificial gas, which is basically about 3-4 times.
It is recommended to consult the local gas company directly before decorating the house and buying a water heater and stove, and ask whether the local gas or natural gas is used.
In addition, liquefied gas is a by-product of petroleum refining, which is generally present in a liquid state. It is not suitable for long-distance transportation, so it will not be used as pipeline gas.
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I have to consult the gas company to know that my home is the pipeline liquefied gas, I have consulted the local business customer service point I still don't believe it, and then hit the national ** to confirm that the pipeline is liquefied gas, who said that there is only gas or natural gas in the pipeline? If you don't understand, don't answer randomly!
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It should be natural gas, you can also bring gas ** for consultation.
I don't quite agree with the former. If you think about it, neither is dangerous if it is not leaked. Liquefied gas is slightly more dangerous for city gas users for the following reasons: >>>More
It mainly depends on your own needs.
Comparison of the two gases: >>>More
The main component of natural gas is methane.
The molecular weight is 16; The main component of air is nitrogen. >>>More
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. >>>More
Liquefied gas stoves and natural gas stoves are not universal. Liquefied gas is canned and has a higher pressure, while natural gas is mainly transported by pipelines and the pressure is relatively small. When combusting, natural gas requires more air than liquefied gas, so their outlets are larger and smaller. >>>More