AIR TURBO-REFRIGERATION UNIT, METHOD FOR OPERATING SAME, AND TURBO-EXPANDER
First Claim
1. An air turbo-refrigerating plant which contains a compressor directly coupled to a centrifugal expander, electric motor with the shaft coupled to the shaft of a compressor and a centrifugal expander, a double-cavity heat exchanger, recuperator, moisture separator, refrigerating chamber with a chiller and a blower, with inlet and outlet of the second double-cavity heat exchanger opening to the atmosphere, where the inlet of the latter is via a blower, and the compressor'"'"'s inlet opens via its valve member to the atmosphere, characterized in that the plant is equipped with a double-cavity heat-exchanging chiller, and the second and third moisture separators, with the compressor'"'"'s outlet connected to the first cavity of the double-cavity heat exchanger, the said first cavity being connected to the first cavity of the double-cavity heat-exchanging chiller connected via the second moisture separator to the first cavity of the recuperator, with the said cavity connected via the first moisture separator to the inlet of the centrifugal expander, and the latter'"'"'s outlet is connected via the third moisture separator to the second cavity of the double-cavity heat-exchanging chiller, the said second cavity connected to the chiller, and—
- through the latter chiller—
to the second cavity of the recuperator, the said second cavity being connected to the compressor inlet.
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Accused Products
Abstract
The invention relates to refrigeration technology and can be used in air conditioning systems, refrigerators, etc. An air turbo-refrigeration unit comprises a compressor disposed on the same shaft as a turbo-expander, an electric motor, a two-cavity heat exchanger, a recuperator, a water trap, and a refrigeration chamber with a cooler and a fan. The unit Is equipped with a two-cavity heat exchanger/cooler, and with a second water trap and a third water trap; the compressor is connected by its outlet to the first cavity of the heat exchanger, which is connected to the first cavity of the heat exchanger/cooler, and the first cavity of the heat exchanger/cooler is connected via the second water trap to the first cavity of the recuperator, which communicates with the inlet of the turbo-expander via the first water trap; the turbo-expander is connected by its outlet via the third water trap to the second cavity of the heat exchange r/cooler, which is communicated with the cooler and is communicated via the cooler with the second cavity of the recuperator, which is communicated with the compressor inlet. The invention makes it possible to prevent the formation of ice and frost on the inner cavities of the turbo-expander and of ducts, which, in turn, prevents shut-off of the air turbo-refrigeration unit and increases the refrigeration capacity of the unit.
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44 Claims
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1. An air turbo-refrigerating plant which contains a compressor directly coupled to a centrifugal expander, electric motor with the shaft coupled to the shaft of a compressor and a centrifugal expander, a double-cavity heat exchanger, recuperator, moisture separator, refrigerating chamber with a chiller and a blower, with inlet and outlet of the second double-cavity heat exchanger opening to the atmosphere, where the inlet of the latter is via a blower, and the compressor'"'"'s inlet opens via its valve member to the atmosphere, characterized in that the plant is equipped with a double-cavity heat-exchanging chiller, and the second and third moisture separators, with the compressor'"'"'s outlet connected to the first cavity of the double-cavity heat exchanger, the said first cavity being connected to the first cavity of the double-cavity heat-exchanging chiller connected via the second moisture separator to the first cavity of the recuperator, with the said cavity connected via the first moisture separator to the inlet of the centrifugal expander, and the latter'"'"'s outlet is connected via the third moisture separator to the second cavity of the double-cavity heat-exchanging chiller, the said second cavity connected to the chiller, and—
- through the latter chiller—
to the second cavity of the recuperator, the said second cavity being connected to the compressor inlet. - View Dependent Claims (2, 3, 21, 22, 23, 24, 25)
- through the latter chiller—
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4. The air turbo-refrigerating plant containing a compressor directly coupled to a centrifugal expander, a double-cavity heat exchanger, recuperator, moisture separator, refrigerating chamber with a chiller and a blower, where inlet and outlet of the second cavity of the double-cavity heat exchanger open to the atmosphere, and the outlet is via the blower, the above plant characterized in that the plant is equipped with a double-cavity heat-exchanging chiller, the second and third moisture separators, the second motor-driven compressor and the second double-cavity heat exchanger, with the compressor outlet connected to the first cavity of the double-cavity heat exchanger, the said first cavity being connected to the first cavity of the double-cavity heat-exchanging chiller, the said first cavity connected via the second moisture separator to the first recuperator cavity connected via the first moisture separator to the centrifugal expander'"'"'s inlet, while the centrifugal expander'"'"'s outlet is connected via the third moisture separator to the second cavity of the heat-exchanging chiller, the said second cavity being connected to the chiller and, via the chiller, to the second cavity of the recuperator, the latter second cavity connected to the inlet of the second compressor, while the latter opens with its inlet via the valve member to the atmosphere and with the outlet—
- via the first cavity of the second double-cavity heat exchanger connected to the compressor inlet, and the inlet and outlet of the second double-cavity heat exchanger open to the atmosphere, with the inlet being connected via the second blower.
- View Dependent Claims (5, 6, 7, 26, 28, 29, 30, 31, 32, 33, 34, 35)
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8. The air turbo-refrigerating plant containing the directly coupled compressor and centrifugal expander, double-cavity heat exchanger, recuperator, moisture separator and refrigerating chamber with a chiller and a blower, with inlet and outlet of the second cavity of the double-cavity heat exchanger open to the atmosphere, while inlet is via the blower, being characterized that the plant is equipped with a double-cavity heat-exchanging chiller, second and third moisture separators, and the second and third compressors being directly coupled, electric motor, the shaft of which is coupled to the shaft of the second and third compressors, and with the second double-cavity heat exchanger, with the compressor inlet connected to the inlet of the second compressor which is connected with its outlet via the first cavity of the second double-cavity heat exchanger to inlet of the third compressor, the outlet of which is connected via the first cavity of the double-cavity heat exchanger to the first cavity of the heat-exchanging chiller, the said chiller'"'"'s cavity connected via the second moisture separator to the first cavity of the recuperator connected via the first moisture separator to the outlet of the centrifugal expander, while the latter with its outlet is connected to the second cavity of the heat-exchanging chiller, the latter cavity connected to the chiller and, via the latter, to the second cavity of the recuperator, the latter cavity being connected to the compressor inlet, with the latter'"'"'s inlet opening to the atmosphere via the valve member while the second cavity of the second double-cavity heat exchanger opens to the atmosphere on the side of both the inlet and outlet, and on the side of the inlet—
- via the second blower.
- View Dependent Claims (9, 10, 11, 36, 37, 38, 39, 40, 41, 42, 43, 44)
- 12. The centrifugal expander containing directly coupled wheels of the centrifugal expander and the compressor mounted on same shaft installed in the shell between gas-dynamic bearings, being characterized in that an axial shaft stabilizer is installed in the shell opposite to the shaft end on the side of the compressor wheel clear of the last stationary magnet.
Specification