Evaporation apparatus

Claim 2

An integral forced circulation evaporation apparatus which comprises an evaporating chamber having a lower liquid space region containing heated liquid and an upper vapor space region containing vapors flashed off from the heated liquid in the lower liquid space region, a heating zone containing vertically disposed heat exchange tubes, and a liquid receiving chamber, said lower liquid space region of the evaporating chamber being surmounted on said heating zone in direct communication with the upper ends of each of said heat exchange tubes, said liquid receiving chamber being surmounted by said heating zone in direct communication with the lower ends of said heat exchange tubes; pump means disposed within said liquid receiving chamber for the circulation of liquid through said evaporator apparatus, partition means disposed wihin said liquid receiving chamber so as to form, within said liquid receiving chamber, a first section containing the intake side of said pump means and a second section containing the discharge side of said pump means, said partition means further being positioned such that the lower ends of a portion of the heat exchange tubes are in direct communication with only that section containing the intake side of the pump means and the lower ends of the remaining heat exchange tube having direct communication with only that section containing the discharge side of the pump means, and a second partition means disposed within said lower liquid space region of the evaporating chamber positioned so as to form within said evaporating chamber, a first section in direct communication with the upper ends of those heat exchange tubes whose lower ends are in direct communication with the intake side of the pump means and a second section in direct communication with the upper ends of those heat exchange tubes whose lower ends are in direct communication with the discharge side of the pump means, said second partition means being formed so as to prevent liquid flow between said sections in the evaporating chamber at a point immediately adjacent the upper ends of said heat exchange tubes while permitting liquid flow between said sections in the evaporating chamber at a point above the upper end of said second partition means, and further being positioned so that it is below the level of the liquid in the lower liquid space region of the evaporating chamber, said second partition means being substantially funnel shaped and disposed in the lower liquid space region of said evaporating chamber and positioned in the central part thereof so as to form a central, inner section, and an outer section surrounding said inner section, and a conically shaped member disposed within the upper portion of said second partition means, and spaced apart therefrom, so as to form an annular channel for the distribution of liquid flow.

Claim 3

The evaporation apparatus of claim 1 wherein the first partition means in the liquid receiving chamber is offset in a direction toward the inner section of said liquid receiving chamber in the area in which the pump means is mounted.

Claim 4

An integral forced circulation evaporation apparatus which comprises an evaporating chamber having a lower liquid space region containing heated liquid and an upper vapor space region containing vapors flashed off from the heated liquid in the lower liquid space region, a heating zone containing vertically disposed heat exchange tubes, and a liquid receiving chamber, said lower liquid space region of the evaporating chamber being surmounted on said heating zone in direct communication with the upper ends of each of said heat exchange tubes, said liquid receiving chamber being surmounted by said heating zone in direct communication with the lower ends of said heat exchange tubes; pump means disposed within said liquid receiving chamber for the circulation of liquid through said evaporator apparatus, partition means disposed within said liquid receiving chamber so as to form, within said liquid receiving chamber a first section containing the intake side of said pump means and a second section containing the discharge side of said pump means, said partition means further being positioned such that the lower ends of a portion of the heat exchange tubes are in direct communication with only that section containing the intake side of the pump means and the lower ends of the remaining heat exchange tube having direct communication with only that section containing the discharge side of the pump means, and a second partition means disposed within said lower liquid space region of the evaporating chamber positioned so as to form within said evaporating chamber, a first section in direct communication with the upper ends of those heat exchange tubes whose lower ends are in direct communication with the intake side of the pump means and a second section in direct communication with the upper ends of those heat exchange tubes whose lower ends are in direct communication with the discharge side of the pump means, said second partition means being formed so as to prevent liquid flow between said sections in the evaporating chamber at a point immediately adjacent the upper ends of said heat exchange tubes while permitting liquid flow between said sections in the evaporating chamber at a point above the upper end of said second partition means and further being positioned so that it is below the level of the liquid in the lower liquid space region of the evaporating chamber, said second partition means being substantially funnel shaped and disposed in the lower liquid space region of said evaporating chamber and positioned in the central part thereof so as to form a central, inner section, and an outer section surrounding said inner section the outer section having screen members extended from the funnel shaped member to the outer walls of the evaporation chamber.

Claim 5

An integral forced circulation evaporation apparatus which comprises an evaporating chamber having a lower liquid space region containing heated liquid and an upper vapor space region containing vapors flashed off from the heated liquid in the lower liquid space region, a heating zone containing vertically disposed heat exchange tubes, and a liquid receiving chamber, said lower liquid space region of the evaporating chamber being surmounted on said heating zone in direct communication with the upper ends of each of said heat exchange tubes, said liquid receiving chamber being surmounted by said heating zone in direct communication with the lower ends of said heat exchange tubes; pump means disposed within said liquid receiving chamber for the circulation of liquid through said evaporator apparatus, partition means disposed within said liquid receiving chamber so as to form, within said liquid receiving chamber a first section containing the intake side of said pump means and a second section containing the discharge side of said pump means, said partition means further being positioned such that the lower ends of a portion of the heat exchange tubes are in direct communication with only that section containing the intake side of the pump means and the lower ends of the remaining heat exchange tube having direct communication with only that section containing the discharge side of the pump means, and a second partition means disposed within said lower liquid space region of the evaporating chamber positioned so as to form within said evaporating chamber, a first section in direct communication with the upper ends of those heat exchange tubes whose lower ends are in direct communication with the intake side of the pump means and a second section in direct communication with the upper ends of those heat exchange tubes whose lower ends are in direct communication with the discharge side of the pump means, said second partition means being formed so as to prevent liquid flow between said sections in the evaporating chamber at a point immediately adjacent the upper ends of said heat exchange tubes while permitting liquid flow between said sections in the evaporating chamber at a point above the upper end of said second partition means and further being positioned so that it is below the level of the liquid in the lower liquid space region of the evaporating chamber, said second partition means being substantially funnel shaped and disposed in the lower liquid space region of said evaporating chamber and positioned in the central part thereof so as to form a central, inner section, and an outer section surrounding said inner section the outer section having screen members extended from the funnel shaped member to the outer walls of the evaporation chamber.

Claim 6

The evaporation apparatus as claimed in claim 3 wherein the partition member in the liquid receiving chamber is offset in a direction toward the inner section of said liquid receiving chamber in the area in which the pump means is mounted.

Claim 7

An integral forced circulation evaporation apparatus which comprises an evaporating chamber having a lower liquid space region containing heated liquid and an upper vapor space region containing vapors flashed off from the heated liquid in the lower space region, a heating zone containing vertically disposed heat exchange tubes, and a liquid receiving chamber, said lower liquid space region of the evaporating chamber being surmounted on said heating zone in direct communication with the upper ends of each of said heat exchange tubes, said liquid receiving chamber being surmounted by said heating zone in direct communication with the lower ends of said heat exchange tubes; pump means disposed within said liquid receiving chamber for the circulation of liquid through said evaporator apparatus, partition means disposed within said liquid receiving chamber so as to form, within said liquid receiving chamber a first section containing the intake side of said pump means and a second sectioncontaining the discharge side of said pump means, said partition means further being positioned such that the lower ends of a portion of the heat exchange tubes are in direct communication with only that section containing the intake side of the pump means and the lower ends of the remaining heat exchange tube having direct communication with only that section containing the discharge side of the pump means, and a second partition means disposed within said lower liquid space region of the evaporating chamber positioned so as to form within said evaporating chamber, a first section in direct communication with the upper ends of those heat exchange tubes whose lower ends are in direct communication with the intake side of the pump means and a second section in direct communication with the upper ends of those heat exchange tubes whose lower ends are in direct communication with the discharge side of the pump means, said second partition means being formed so as to prevent liquid flow between said sections in the evaporating chamber at a point immediately adjacent the upper ends of said heat exchange tubes while permitting liquid flow between said sections in the evaporating chamber at a point removed above the upper end of said second partition means and further being positioned so that it is below the level of the liquid in the lower liquid space region of the evaporating chamber, said second partition means being substantially funnel shaped and disposed in the lower space region of said evaporating chamber and positioned in the central part thereof so as to form a central, inner section, and an outer section surrounding said inner section, said outer section having screen members extended from the funnel shaped member to the outer walls of the evaporation chamber, and a conically shaped member is disposed within the upper portion of said second partition means, and spaced apart therefrom, so as to form an annular channel for the distribution of liquid flow.

Claim 8

An integral forced circulation evaporation apparatus which comprises an evaporating chamber having a lower liquid space region containing heated liquid and an upper vapor space region containing vapors flashed off from the heated liquid in the lower space region, a heating zone containing vertically disposed heat exchange tubes, and a liquid receiving chamber, said lower liquid space region of the evaporating chamber being surmounted on said heating zone in direct communication with the upper ends of each of said heat exchange tubes, said liquid receiving chamber being surmounted by said heating zone in direct communication with the lower ends of said heat exchange tubes; pump means disposed within said liquid receiving chamber for the circulation of liquid through said evaporator apparatus, partition means disposed within said liquid receiving chamber so as to form, within said liquid receiving chamber a first section containing the intake side of said pump means and a second sectioncontaining the discharge side of said pump means, said partition means further being positioned such that the lower ends of a portion of the heat exchange tubes are in direct communication with only that section containing the intake side of the pump means and the lower ends of the remaining heat exchange tube having direct communication with only that section containing the discharge side of the pump means, and a second partition means disposed within said lower liquid space region of the evaporating chamber positioned so as to form within said evaporating chamber, a first section in direct communication with the upper ends of those heat exchange tubes whose lower ends are in direct communication with the intake side of the pump means and a second section in direct communication with the upper ends of those heat exchange tubes whose lower ends are in direct communication with the discharge side of the pump means, said second partition means being formed so as to prevent liquid flow between said sections in the evaporating chamber at a point immediately adjacent the upper ends of said heat exchange tubes while permitting liquid flow between said sections in the evaporating chamber at a point removed above the upper end of said second partition means and further being positioned so that it is below the level of the liquid in the lower liquid space region of the evaporating chamber, said second partition means being substantially funnel shaped and disposed in the lower space region of said evaporating chamber and positioned in the central part thereof so as to form a central, inner section, and an outer section surrounding said inner section, said outer section having screen members extended from the funnel shaped member to the outer walls of the evaporation chamber, and a conically shaped member is disposed within the upper portion of said second partition means, and spaced apart therefrom, so as to form an annular channel for the distribution of liquid flow.