What are the fire safety requirements for the installation of storage tanks such as liquefied hydroc

1) The load-bearing steel pillars of the liquefied hydrocarbon storage tank shall be covered with a refractory layer, and its fire resistance limit shall not be lower.

2) The storage coefficient of the liquefied hydrocarbon storage tank should not be greater than that, for the same reason as the liquid ammonia storage tank.

3) The liquefied hydrocarbon storage tank shall be equipped with a level gauge and a thermometer.

Pressure gauges, safety valves.

As well as high liquid level alarm device or high liquid level automatic interlock cut-off feeding device. For the fully refrigerated liquefied hydrocarbon storage tank, vacuum relief facilities and high and low temperature detection facilities should also be set up, and should be connected to the automatic control system.

4) The outlet pipe of the safety valve of the liquefied hydrocarbon storage tank should be connected to the flare system. When there is indeed difficulty, it can be vented on the spot, but its exhaust pipe mouth should be more than 3m higher than the tank top platform within 8m.

5) The full-pressure liquefied hydrocarbon storage tank should adopt a secondary dehydration system with anti-freezing measures, and an emergency shut-off valve should be set at the root of the storage tank.

6) The pipeline grade of the valves and pipe fittings of the opening pipe of the liquefied hydrocarbon storage tank should not be lower than the gasket.

Spiral wound gaskets should be used. The sealing packing of the valve gland shall be made of flame-retardant material.

7) Liquefied hydrocarbon evaporator.

The gas phase part should be provided with a pressure gauge and a safety valve.

8) The full-pressure liquefied hydrocarbon storage tank shall be installed as the pipeline and valve for water injection of the storage tank. In order to prepare for the leakage of the full-pressure liquefied hydrocarbon storage tank, water is injected into the storage tank to raise the liquid level of liquefied hydrocarbons in the storage tank, and the damage point is placed below the water surface to reduce the leakage of liquefied hydrocarbons.

Not belonging...

Liquid ammonia NH3 is a chemical compound composed of only two elements, carbon and hydrogen.

But in liquid ammonia, there is no carbon, there is also nitrogen.

So liquid ammonia is not a liquefied hydrocarbon.

The storage coefficient of storage tanks such as liquefied hydrocarbons and liquid ammonia should not be greater than ().

Correct answer) Answer: Qiaoliang case analysis:

Code for Fire Protection Design of Petrochemical Enterprises (GB50160-2008) The storage coefficient of liquefied hydrocarbons, liquid ammonia and other filial piety storage tanks should not be greater than the slag.

The storage coefficient of liquefied hydrocarbons and liquid ammonia storage tanks should not be greater than ().

Correctly and unscrupulously answer the mu case).

The answer key lets] Manuscript Wide Bureau: a, b, d

The liquid ammonia storage tank is a source of danger, and the grounding device can not be safely released to release static electricity, and there is a possibility of accidents, and the leakage of liquid ammonia will cause poisoning and suffocation accidents, and liquid ammonia is a chemical danger and harmful factor.

Answer]: a, b, d

Biological hazards and dangerous demolition hazards are mainly due to the following factors:

1) Pathogenic microorganisms (bacteria, viruses, other pathogenic microorganisms).

2) Vectors of infectious diseases.

3) Harmful animals.

4) Harmful plants.

5) Other biological hazards and hazards.

Chemical hazards and hazards are mainly as follows:

1) Flammable and explosive substances (flammable and explosive gases, flammable and explosive liquids, flammable and explosive solids, flammable and explosive dusts and aerosols, and other flammable and explosive substances).

2) Spontaneously combustible substances.

3) Toxic substances (toxic gases, toxic liquids, toxic solids, toxic dusts and aerosols, and other toxic substances).

4) Corrosive substances (corrosive gases, corrosive liquids, corrosive solids, and other corrosive substances).

5) Other chemical hazards and hazards.

(1) The tank-type storage tank (gas cabinet) of combustible gas and oxidizing gas shall be equipped with upper and lower limit alarm devices, and the automatic interlocking and shut-off device of the inlet and outlet pipelines shall be installed.

2) On the storage tanks of liquefied gases such as liquid oxygen, liquid ammonia and liquid hydrogen, liquid level gauges, pressure gauges and safety valves shall be installed; Temperature indicators shall be set up on cryogenic liquid ammonia and liquid chlorine storage tanks.

3) There should not be any combustibles within 5m around the liquid oxygen storage tank, even the road surface should not be paved with asphalt.

4) The storage coefficient of liquid ammonia and other storage tanks should not be greater than that, so as to avoid endangering the safety of the storage tank due to the expansion and pressurization of the stored medium due to the rise of ambient temperature during the storage process.

1.It should be reliably grounded to conduct static electricity;

2.The inner wall should be coated with an anti-static layer;

3.A breathing valve should be provided to equalize the internal pressure;

4.Fireworks are prohibited within a certain area.

Taking 30 vertical tanks as an example, the steel used in the design and manufacture is 16mnr, the maximum design temperature is 10 degrees higher than that of the liquid ammonia tank (the liquid ammonia tank is 40 degrees), and the design pressure is very similar (the liquid ammonia tank is, the thickness of the design cylinder material is a little larger (the liquid ammonia tank is millimeters), and the design hydraulic test pressure is also a little higher (the liquid ammonia tank is.

Theoretically, a liquefied gas tank can be filled with liquid ammonia. However, according to the national pressure vessel management system, regulations and specifications, it is absolutely not allowed.

Also, the filling interface valve is different, how to fill?

If the valve is modified, it is a more serious violation of laws and regulations, and an accident is a liability accident.

Therefore, do not use liquefied gas tanks to fill liquid ammonia after modification.

No, the pressure of these two substances is not the same.

The recommended answer is very good, theoretically yes, but the filling port is different, how do you pretend?