SU900100A1 - Heat exchanger - Google Patents

Description

I

The invention relates to condenser heat exchangers used to condense vapors of substances from the gas phase, and can be used in dust removal and cleaning of industrial gases before they are released into the atmosphere in the chemical and gas industries.

Heat exchangers are known, comprising a body divided by partitions into compartments and vertical pipes infused into the body reinforced in rails with a step decreasing in the direction of movement of the annular space medium ST.

A disadvantage of the known heat exchangers is that in them it is impossible to change the cooling rate of gases containing vapors of a deposited substance, as the gas moves, as a result, the degree of purification of the latter is low.

The purpose of the invention is to eliminate the above drawback.

The goal is achieved by the fact that the partitions are installed vertically, parallel to the pipes and made perforated, with the cross section of perforations in the lower part of each partition 2-5 times the section of perforations in its upper part.

At 1, a heat exchanger is shown, general view; in fig. 2 - the same plan view.

The heat exchanger includes a housing

1, and-shaped heat exchange tubes

Claims (1)

2, fixed in tube plates 3, compartments 4, bins 5 for condensate collection, ducts 6, perforated partitions 7, rolls 8, pipes 9 for entering the cooling medium, pipes 10 for entering a coolant during pipe cleaning, kalachas 11, confuser 12 for enter the contaminated gas, the diffuser 13 for removal of the rational gas. 3 The device works the following way. A hectare containing pairs, such as a mouse trioxide, enters the heat exchanger through the confuser 12 and through the perforated partition Y is evenly distributed over the cross section of the inlet compartment 4, and then over all subsequent ones. On the way, the gas is cooled by pipes 2, inside of which coolant circulates, for example air introduced through pipe 9, ducts 6. Since in the first compartment the pipes are mounted with a sufficiently large pitch, the cooling of the gas proceeds at a slower rate, which allows the formation of centers crystallization. The more frequent (dense) pitch of the pipes in the subsequent compartments causes an accelerated cooling of the cheek gas and the condensation of impurity substances on the surface of the pipes. Heat exchanger is introduced through pipe 10 to clean the pipe surface from condensate. When the tubes heat up, the heat transfer fluid begins to evaporate against the walls and, due to the high vapor pressure, exacerbates the layer of settled konensat. The latter is collected in a bunker. The invention will allow the replacement of currently used scrubbers and a wet electrostatic precipitator, to ensure the capture of the trioxide gel from gases as a solution with the subsequent precipitation of calcium arsenate, while improving sanitary working conditions and ensuring protection okru} as a medium. The invention includes a heat exchanger comprising a housing divided by partitions into compartments and vertical pipes housed inside the casing, fixed in grids with OAG decreasing in the direction of movement of the annular medium, characterized in that, in order to increase the degree of purification of the annulus environment during its condensation, -. towns are installed vertically, parallel to pipes and are perforated with Qf, and the cross section of perforations in the lower part of each partition is 2–5 times that of perforations in its upper part. Sources of information taken into account in the examination I. Copyright certificate of the USSR 425037, cl. F 28 D 7/00, 1972.