Liquefied gas flame arrester

Liquefied gas flame arrester model：GZW-W

liquefied gasFlame arresterThe function of a flame arrester is to prevent external flames from entering equipment or pipelines containing flammable and explosive gases, or to prevent flames from spreading between equipment or pipelines,It is used to prevent

The safety of flame spread of flammable gases and flammable liquid vaporsThe entire device. Flame arresters are also commonly used on pipelines transporting flammable gases. If flammable gases are ignited,Gas flames will

Spread to the entire pipeline network. To prevent such danger from occurring, flame arresters should also be used. Flame arresters can also be usedOn pipelines with open flame equipment, to preventStop the backfire accident. only

It cannot prevent the open flame combustion of flammable gases and liquids.

Liquefied gas flame arresterWorking principleThere are two main perspectives on the working principle of flame arresters: one is based on heat transfer; One is based on the wall effect.

1. Heat transfer function: One of the necessary conditions for combustion is to reach a certain temperature, which is the ignition point. Below the ignition point, the combustion will stop. According to this principle, as long as the combustion is carried out

When the temperature of a substance drops below its ignition point, it canStop the spread of flames. When the flame passes through many small channels of the flame retardant element, it will turn into several small flames. Design flame retardant

Inside the deviceWhen using fire-resistant components,Try to expand the contact area between the small flame and the channel wall as much as possible,Enhance heat transfer,Reduce the flame temperature below the ignition point,Thereby preventing the spread of flames.

2. Wall effect: Combustion and explosion are not direct reactions between molecules, but are stimulated by external energy, which breaks the molecular bonds and produces activated molecules, which then split into short-lived but

But very lively free radicals, free radicals and other moleculescollide,Generate new products,At the same time, new free radicals are generated to continue reacting with other molecules. When burningCombustible gas through obstruction

When the narrow passage of the fire element,The collision probability between free radicals and channel walls increases,Free radicals involved in the reactionReduce. When the channel of the flame arrester is narrow to a certain distancedegree-hour,The collision between free radicals and channel walls

Collision dominates,Due to a sharp decrease in the number of free radicals,The reaction cannot continue,That is to say, the combustion reaction cannot continue to propagate through the flame arrester.With resistanceReduction of firearm channel size,free

The collision probability between the base and the reactive molecules decreases accordingly,And the collision probability between free radicals and channel walls actually increases,This promptsReduced free radical reactions. When the channel size decreases to a certain value

time,thisThe wall effect of the planter creates conditions where flames cannot continue to propagate,The flames are stopped. Therefore, the wall effect isThe main mechanism for preventing flames.

Flame arresterMain component materials:

Liquefied gas flame arresterMain purpose：

1. On pipelines transporting flammable gases. 2. Torch system. 3. Oil and gas recovery system.

4. The pipe network for heating furnace fuel gas. 5. Gas purification and chemical system. 6. Gas analysis system.

7. Coal mine gas emission system. 8. Flammable and explosive solvent systems (such as reaction vessels and tank vents).

Liquefied gas flame arresterPerformance1. The explosion-proof performance is qualified, and the flame arrester has undergone 13 consecutive subsonic flame tests, each of which can prevent the flame from passing through. 2. The fire resistance performance is qualified,

There is no tempering phenomenon in the 1-hour fire resistance test.3Qualified shell hydrostatic test, hydrostatic test2.4MPaNo leakage. Reasonable structure, light weight, and corrosion resistance. Easy to maintain and install.

The flame arrester core is made of stainless steel material,Corrosion resistant and easy to clean.The flame arrester is mainly composed of two parts: the shell and the filter element. The shell should have sufficient strength to withstand the explosion

The impact pressure. The filter element is the main component that prevents flame propagation, and commonly used ones include goldThere are two types of filters: filter cartridges and corrugated filter cartridges. MetalDiameter for mesh filter element0.23~0.315mmNo

Stainless steel or copper mesh, composed of multiple layers of overlapping. At present, flame arresters in China usually use16~22Metal mesh,by4~12Layer. Corrugated filter element made of stainless steel, copper nickel alloy, aluminum or

aluminum alloyGold support. The corrugated flame arrester can prevent the violent flames of detonation and withstand the corresponding mechanical and thermal effects. It has low flow resistance and is easy to clean and replace.

Liquefied gas flame arresterPrinciples of repair and maintenance:

1. In order to ensure the performance of the flame arrester meets its intended use, it is necessary to carefully read the instructions provided by the manufacturer before installing the flame arrester, and carefully check whether the label is consistent with the requirements of the installed pipeline.

2. The flow direction mark on the flame arrester must be consistent with the flow direction of the medium.

3. It should be checked every six months. Check whether the fire-resistant layer has defects such as blockage, deformation, or corrosion.

4. The blocked fire-resistant layer should be cleaned thoroughly to ensure that each hole is unobstructed, and any deformed or corroded fire-resistant layer should be replaced.

5. When cleaning the flame arrester core components, high-pressure steam, non corrosive solvents, or compressed air should be used for blowing, and sharp hardware brushes should not be used.

6. When reinstalling the fire-resistant layer, the gasket should be updated and the sealing surface should be confirmed to be clean and undamaged, without any air leakage.

Shanghai Nanshi is a professionalManufacturer of flame arrestersThe products produced by the company include breathing valves, flame arresters, fire-resistant breathable caps, fire-resistant vacuum pressure caps, aluminum alloy ball valves

Aluminum alloy single flange ball valve, oil discharge port, double door bottomValveA series of supporting accessories such as oil measuring holes.

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 flame arrester model, please order directly from our sales center based on the flame arrester 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.

4、 The above prices are all fictitious. Interested parties please contact us. We can provide you with professional solutions, including design, customization, complete sets, operation, and service. We have always been committed to

As a leader in the field of flame arresters, we will provide you with the latest knowledge, services, and technical consultants on flame arresters. If you have any questions, you can call us,We will definitely do our best

We will do our best to provide you with high-quality service. By closely monitoring customer needs and application experience, grasping market orientation: through high-intensity R&D investment, scientific management, and cultural shaping, improving

Enhance organizational capability; Through high attention and sustained effortsImprove and make quality and service our brand logo.

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