SU853341A1 - Method and apparatus for cooling gas - Google Patents

Description

(54) GAS COOLING METHOD AND INSTALLATION FOR ITS HELPING

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This invention relates to installations and methods for cooling a gas when it is in direct contact with a refrigerant.

These cooling methods are widely used in various areas of technology where air cooling and humidification is required.

Methods are known for cooling a gas by passing a gas stream through a hydrophilic material and adiabatically moistening the liquid in contact with the hydrophilic material 1.

Installations for gas cooling in this way are known, containing a horizontal casing with end inlet and outlet headers limited by grids, the space between which is filled with hydrophilic material forming the channels for gas 1.

These methods and installations for gas cooling are characterized by an insignificant service life determined by the amount of liquid fed by the hydrophilic material.

Methods are also known for cooling a gas by passing a gas stream through a HYDROPHILIC material, adiabatically moistening the liquid in contact with the hydrophilic material, and then separating the liquid from the stream.

Known and installation for cooling gases in a specified way, containing a horizontal casing with end inlet and outlet headers, limited by grids, the space between which is filled with hydrophilic

10 by the material forming the gas channels and the pressurized fluid compartment located in the lower part of the housing and communicated with the hydrophilic material 2.

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These methods and installations for cooling gas have a significantly longer working life due to the addition of liquid to the hydrophilic material.

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However, when using known methods of gas cooling in installations for their implementation, a significant channel entrainment of the working fluid is observed at high velocities of the cooled gas ejecting this fluid from a hydrophilic material, which reduces the service life of the heat exchange unit.

Claims (2)

The purpose of the invention is to reduce the size of 30. This is achieved by taking some of the gas out of the stream and feeding it in, bypassing the hydrophilic material, saturating this part with the liquid separated from the stream, and mixing it with the flow of the gas passed through the hydrophilic material Installations in the fluid compartment installed horizontal gas pipes, connecting the inlet and outlet manifolds, the last of which is equipped with a perforated screen placed above the pipes of the compartment. The drawing shows schematically an installation for carrying out the described method of gas cooling. The installation contains a horizontal casing 1 from the burners 4 and the input and output headers 2 and 3, limited by grids 4 and 5, the space between which is filled with a hydrophilic material 6, forming the channels 7 for gas, and a sealed liquid compartment 8 dispersed in the lower part of the casing 1, and communicated with the hydrophilic material 6 through vertical nozzles 9. Horizontal gas pipes 10 are installed in the fluid compartment 8, which connects the inlet manifold 2 to the output manifold 3, which is provided with a perforated screen 11 placed Above the tubes 10 of the compartment 8, the fluid compartment 8 communicates with the collector 2 by means of a tube 12, which has an overflow hole 5 in the horizontal section Cf. Before operating, the installation is filled with liquid. Refueling the liquid compartment% is carried out through a tube 12. Air from the liquids of compartment 8 during refueling is removed through an air inlet cG During operation, the cooled air, passing through channels 7, exchanges heat and mass with liquid to saturation up to a relative humidity of 95,100%. The loss of fluid in the hydrophilic {material b is replenished by entering it from the fluid compartment 8 through the vertical nozzles 9. At high gas velocities in the channels 7 of the hydrophilic material 6, the fluid from the latter is ejected and ejected into the outlet manifold 3. Reduction of the fluid flow with this method cooling of the gas and in the installation for its implementation is achieved by the fact that part of the gas from the stream is taken. and fed to the bypass of hydrophilic material 6 through gas pipes 10 to the outlet manifold 3, cooling it down to increase the enthalpy of the fluid in compartment 8. Before mixing this part of the gas with a stream that has undergone thermo-moisture treatment in channels 7 of the hydrophilic material b, it is saturated with fluid , separated from the flow in the output manifold 3 and flowing onto the perforated screen 11, In addition, at negative ambient temperatures, the liquid in the fluid compartment 8 freezes and in the initial period of operation of the heat exchange installation, the make-up idrofilnogo material used offline as long as extending over the horizontal pipes 10, the refrigerant gas does not translate into a liquid state. With this method of gas cooling and in an installation for its implementation, the droplet entrainment of liquid from a hydrophilic material occurs at high speeds of the gas being cooled. Use for gas. The economic efficiency of the invention is expressed in increasing the service life of the heat exchange unit and in eliminating dropping moisture in the cooled gas stream. Claim 1. Gas cooling method by passing a gas stream through a hydrophilic material, adiabatically moistening the liquid in contact with the hydrophilic material, and then separating the liquid from the stream, distinguished by the fact that part of the gas is removed from the stream. served in the contour of the hydrophilic material. saturate this part with the liquid separated from the stream and mix it with the gas flow passed through the hydrophilic material. 2. An apparatus for cooling gas comprising a horizontal case with end inlet and outlet manifolds delimited by grids, the space between which is filled with a hydrophilic material / forming channels for gas, and a sealed liquid compartment located in the lower part of the case and communicated with a hydrophilic material the fact that, in order to reduce the flow rate of the liquid, horizontal gas pipes are installed in the liquid compartment, which connect the inlet and outlet collectors, the last of which is provided with perforations screen mounted above the compartment tubes. sources of information taken into account in the examination 1. USSR author's certificate 552493, cl. R 28 C 3/08, 1975. 2. USSR author's certificate in accordance with the application 2727334, cl. F 28 C 3/08, 02.21.79.