FIELD: cooling and heating equipment, particularly for simultaneous environmental air heating and cooling in industrial objects.
SUBSTANCE: device comprises turbo-expander and multistage compressor connected to turbo-expanded through high-pressure pipeline. High-pressure pipeline includes water heat-exchanger and the first dehumidifier, as well as two recuperative heat-exchangers and the second dehumidifier. Low-pressure pipeline communicates turbo-expander with object to be cooled or heated. Air inlet line has serially arranged sucking means and filter. Air inlet line is linked to multistage compressor. Single-stage centrifugal pump and turbo-expander are connected to common shaft. Additional dehumidifier is installed downstream of the first recuperative heat-exchanger. Additional heat-exchanger is arranged in low-pressure line so that one cavity thereof is connected to the second recuperative heat-exchanger inlet and another one is communicated with outlet thereof. Low-pressure line section located upstream of object to be cooled and/or heated is made as at least one pipeline provided with electric production air heater. Additional air supply loop branches away from air inlet line upstream of multistage compressor and is communicated with single-stage centrifugal pump inlet. Excessive heat removal loop is connected to single-stage centrifugal pump outlet.
EFFECT: increased reliability and thermodynamic efficiency, as well as improved operational conditions.
4 cl, 2 dwg
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Authors
Dates
2008-02-20—Published
2006-04-04—Filed