Acetylene generator - a dangerous hobby in the walls of the house

Structure and function generator

device acetylene generator simple, basic elements are:

• body;
• blowing - it happens in the interaction of water and calcium carbide;
• capacity for acetylene;
• check valve - limiting the evolution of gas;
• gate - keeping the outside of the blast wave during combustion;
• control the amount of gas produced.

acetylene generator operating principle is based on the decomposition of calcium carbide during interaction with ordinary water.During the chemical reaction produces heat and acetylene.

What distinguishes acetylene generators?

Classification acetylene generators are the following features: the pressure of the product gas, performance, method of application, as well as the connection method of calcium carbide and triggers the reaction of H2O.

By generates pressure generators are low or mid-level - up to 0.01 MPa or 0.15 MPa.The performance of generators are classified into 10 varieties of from 1.25 to 640 m3 / h.Dosing device subdivides into stationary and mobile.Stationary may have any capacity and mobile - only 3 m3 / h.

By way of interaction devices substances are:

• HF - carbide is added to water, the reaction of reducing the amount of dry matter;
• VC - water flows on carbide, variability parameter - the amount of water;
• BB - water displacement, the generator itself is a combined unit with communicating vessels, carbide and water interact periodically when the evolved gas allows a new portion of water to penetrate into the compartment with the powder.

welding acetylene generator may be any that is suitable for a specific task.The most popular model of mobile devices - acetylene generator ASP-10.It is used for gas-flame processing of metals: cutting, welding, spraying or brazing.

Use ASP-10 for interior and exterior use, works well at temperatures from -10 to +40 ° C.Weight - approximately 16 kg per hour creates 1.5 m3 acetylene pressure of 0.1-1.5 atm.In one step it can be downloaded to 3.2 kg carbide, pieces of size - from 25 to 80 mm.

it possible to assemble such a device by myself?

How to make homemade acetylene generator? would seem that everything is simple - to connect carbide with water.But this image of the "explosive mixture" that explodes if not handled properly.Craftsmen sometimes produce acetylene generator with your own hands.

Steel body size of the oxygen cylinder is divided into two parts: one part is placed carbide, the other - the water.Water drips on carbide drip formed acetylene escapes through the hose.This is an extremely dangerous device threatens to burst at any moment.

The industrial designs are always return and safety valves, as well as ogneograditeli.The "home" devices, the most important thing - to create a flame arrestor or water seal.The latter has the same structure as in the hookah: gas passes freely through the water, and the flame can not go back.This device protects the "home-made" by the explosion.Without such protection, a home-grown "Kulibin" risked life and limb.

main drawback generators - acetylene pressure surges.These pressure variations are due to different rates of chemical reaction at the time.It is influenced by the temperature, the core area, the degree of contamination of carbide and a variety of other reasons.

Homemade generator no testing and certification does not pass, no one examines the specific sample for the explosion.Therefore, the use of such devices should be avoided, especially since the sale is always a certified acetylene generators or bottles with a ready gas.