SU798661A1 - Insert for transfer of gas solvents without dilution - Google Patents

Description

54) INSERT FOR TRANSFER OF GAS DETONATION WITHOUT DESTRUCTION

one

The invention relates to the field of explosion and can be applied in installations using a gas explosion. In these plants, gas detonation is typically transmitted without destroying from one volume to another.

Cylindrical tubes for the transmission of gas detonation l are known.

A disadvantage of cylindrical tubes is that through them it is possible to transfer detonation into the volume only for gas mixtures, the critical diameter for initiating spherical detonation of which is twice the internal diameter of the tube. In installations in which this condition is not fulfilled for gas mixtures, detonation is destroyed.

Closest to the proposed technical entity is a distribution detonation chamber, made in the form of a cone with an inlet opening and outlet openings at the base, located at equal distances symmetrically to each other. The use of a conical tube makes it possible to increase the surface of the detonation wave at the output as compared with input 2.

The disadvantage of the cone tube is uneconomical consumption, the boar mixture and increased explosion hazard due to its long length.

The purpose of the invention is to reduce the consumption of a combustible mixture and reduce explosiveness by reducing the length of the insert.

This goal is achieved by

0 that the insert for the transmission of gas detonation without destruction, which is a tube extending from the inlet to the outlet, is made with a profiled inner surface

5 and has an increasing radius along the length of the insert, the value of which is calculated by the Formula

0 where R is the radius from the axis of the tube to its surface at a distance K from the entrance of the tube; RJJ - initial internal radius

tubesJ

5 HQ - a numerical coefficient in the range of 0, X - the current distance along the axis

Claims (2)

the tube from its a is the width of the reaction zone of the detonation wave. This radiative variation formula was obtained from experiments carried out on mixtures of hydrogen with oxygen, acetylene with oxygen, and nitrogen methane with oxygen and others. An arbitrary reduction in the length of the insert due to an increase in the angle of expansion of the bark more critical for each mixture and the radius of the inlet of the cone tube is impossible due to the physical limitations of the transfer of detonation gases without destruction. The angle of expansion of the cone is less than the critical, determined by the width of the reaction zone in the radiation wave for the mixture and the given input radius of the tube. The drawing shows the insert in the section. The insert is an expanding tube 1, with a profiled inner surface 2. The drawing shows the current radius U. from the tube axis to its surface at a distance X from the tube inlet, for an insert with an initial inner radius R 5 mm, a numerical coefficient HQ 0 , 82, for combustible mixtures with a reaction zone of less than a 6.5 mm. Thus, the proposed insert makes it possible to reduce the consumption of the combustible mixture and reduce the risk of explosion by reducing the length. For example, to bypass the detonation wave from a tube with a diameter of 40 mm to a volume for a propane-air mixture of stoichiometric composition, the proposed insert will be 2.5 times smaller than the nasal tube, and the volume is 15 times 3. Invention The insert for the transmission of gas detonation without destruction represents The tube extending from the entrance to the run, characterized in that, in order to reduce the distribution of the combustible mixture and reduce the danger of explosion, the inner surface of the slab is made of a profiled shape to increase the radius of the insert. which is calculated by the formula: - HO e R - radius from the axis of the tube to its surface at a distance from the tube inlet) the initial internal radius of the tube and the numerical coefficient in the interval about, 81 HQ i; the current distance along the axis of the tube from its entrance; width of the reaction zone detail wave. Sources of information that are considered in the examination 1. The author's certificate of the USSR 411411, cl. G 01 V 1/02, 1972. 2. Authors; USSR certificate 405092, cl. G 01 V 1/02, 1972 (prototype).