GYWType stainless steel pipeline flame arrester
Product Overview:
GYWType stainless steel pipeline flame arresterWidely used in pipelines for gas, natural gas, and liquefied petroleum gas, as well as in oil and gas recovery, coal mine gas emissions, and gas analysis
The system can effectively ensure the safe operation of gas pipelines and gas usage points. The function of a pipeline flame arrester is to prevent flammable gases and liquidsThe flame of the body
Safety equipment for spreading and preventing explosions caused by backfire. Usually installed on the main fuel gas pipeline in front of the furnace, its main function is to allowFlammable and explosive gases pass through
It has the effect of preventing suffocation from flames entering the storage tank from the outside world. This type of pipeline flame arrester can withstand low temperature conditions in high-altitude regionsThe characteristics of its use are that it can communicate with
Tracheal matching or standalone use. Suitable for storing flash points below28Class A oil products with a flash point below ℃60Class B at ℃Oil products are also suitable for storing materials with nitrogen gas
On the capped ceiling, the pipeline flame arrester is used when flames pass through the narrow pores of the thermal conductor, due to the heat generatedDesign and manufacture based on the principle of extinguishing after loss. Flame arresters
It mainly consists of two parts: the shell and the flame retardant core. The shell should have sufficient strength to withstandThe impact pressure generated by the explosion. The flame retardant core is made of stainless steel, copper nickel alloy
Aluminum or aluminum alloy support. The pipeline flame arrester can organize the violent flames of detonation,And it can withstand corresponding mechanical and thermal effects, with low flow resistance, easy to clean and replace.
Working Principle:
GYWType stainless steel pipeline flame arresterIt is composed of solid materials that can pass through many small, uniform, or non-uniform channels or pores of gas,Regarding these channels
Or the pore size should be as small as possible, as long as it can pass through the flame. In this way, the flame enters the flame arrester and splits into many small particlesThe flame flow was extinguished.
The mechanism by which flames can be extinguished is through heat transfer and wall effect.
(1)The heat transfer function of pipeline flame arresters is one of the factors that can prevent the flame from continuing to propagate and force it to extinguish. Because of the flame retardant coreIt is composed of many details
Composed of small channels or pores, when flames enter these small channels, many small flame streams are formed. Due to the presence of channels or poresLarge heat transfer area, flame
After heat exchange through the channel wall, the temperature drops and the flame is extinguished when it reaches a certain level.
(2)According to the theory of combustion and explosion chain reaction, it is believed that the wall effect of pipeline flame arresters is not a direct interaction between moleculesFruit, but in
Foreign energy sources(Thermal energy, radiation energy, electrical energy, chemical energy, etc)Under the excitation of, the molecular bonds are broken, resulting in the formation of reactive moleculesmolecule(Known as active molecules),
When these active molecules undergo a chemical reaction, they first split into highly reactive and short-lived free radicals. chemical reactionIt is carried out by these free radicals. Free radicals and
The result of the action of another molecule is not only the formation of products, but also the generation of new free radicals. thisSome new free radicalsRepeatedly reacting, consuming and generating, constantly progressing
Go down. From this, it can be inferred that flammable mixed gases self combust(After starting to burn, there is no external energy sourceThe role of)The condition is that the newly generated free base is equal to or greater than
The disappearing free base. As the size of the flame arrester channel decreases, free radicals react with itThe probability of collisions between molecules decreases, while the collision between free radicals and channel walls decreases
The probability actually increases, which leads to a decrease in free radical reactions. When the channel sizeWhen reduced to a certain value, this wall effect causes the flame to no longer propagate
The condition is that the flame is prevented. Therefore, the wall effect is to prevent flamesThe main mechanism.
External connection dimensions of pipeline flame arrester:
|
Nominal DiameterDN |
Nominal PressurePN MPa |
GYWDimensions of pipeline flame arresters(mm) |
bolt |
||||
|
K |
D |
DL |
L |
quantity(KG) |
thread |
||
|
DN20 |
1.6 |
75 |
105 |
195 |
200 |
4 |
M12 |
|
DN25 |
85 |
115 |
195 |
200 |
4 |
M12 |
|
|
DN40 |
110 |
150 |
245 |
240 |
4 |
M16 |
|
|
DN50 |
125 |
165 |
245 |
240 |
4 |
M16 |
|
|
DN80 |
160 |
200 |
280 |
250 |
8 |
M16 |
|
|
DN100 |
180 |
220 |
335 |
260 |
8 |
M16 |
|
|
DN150 |
240 |
285 |
460 |
360 |
8 |
M20 |
|
|
DN200 |
295 |
340 |
520 |
420 |
12 |
M20 |
|
|
DN250 |
355 |
405 |
580 |
430 |
12 |
M24 |
|
|
DN300 |
410 |
460 |
705 |
450 |
12 |
M24 |
|
|
DN600 |
770 |
840 |
1120 |
580 |
20 |
M33 |
|
Ordering Notice: (National Standard)
1A:Product name, model, nominal diameterB:Medium, temperature, and pressure rangeC:Do you have any attachments, delivery dates, special requirements, etc. so that we can make the correct selection for you.
2、 If the design unit has already selected our company's breathing valve model, please place an order directly with our sales center based on the breathing valve parameters.
3、 When the situation you are using is very important or the environment is complex,Please provide design drawings and detailed parameters, our engineers and experts will focus on reviewing and analyzing for you.
We have always been committed to being a leader in the field of flame arresters and will provide you with the latest knowledge, services, and technical consultants on breathing valves. If you have any questions, you can call
we,We will do our best to provide you with high-quality service.
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Shanghai Nanshi is a professionalStainless steel pipeline flame arresterThe series of products produced and developed by the manufacturer and company include:Breathing valve | Flame arrester |Fireproof breathable cap | Fireproof vacuum pressure
Cap | Aluminum alloy ball valve | Aluminum alloy single flange ball valve | Oil discharge port | Double door bottom valve | Oil measuring holeWaiting for supporting attachments.
