Two Stage Condensing and Metering Refrigeration System
a refrigeration system and condenser technology, applied in the field of refrigeration systems, can solve the problems of low efficiency of conventional refrigeration systems, lower performance of the overall refrigeration system, and low refrigeration efficiency, and achieve the effects of high cop (coefficient of performance), high energy efficiency, and similar energy saving
Inactive Publication Date: 2018-10-11
ZHONG LEI
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Benefits of technology
[0006]A mechanical refrigeration system of the exemplary embodiment of the invention, with two stages of refrigerant condensing and metering, is provided wherein a second stage functions to lower the temperature of liquid refrigerant before the refrigerant enters an evaporator of a first stage. The refrigeration systems of the exemplary embodiment of the invention, with two stages of refrigerant condensing and metering, will have significantly high
Problems solved by technology
The portion of refrigerant flash gas does not play a role in the refrigeration effect and lowers the refrigeration efficiency.
This is why conventional refrigeration systems have low efficiency.
The pre-metering device is designed such that the refri
Method used
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[0024]While this invention is susceptible of embodiment in many different forms, there are shown in the drawings, and will be described herein in detail, specific embodiments thereof with the understanding that the present disclosure is to be considered as an exemplification of the principles of the invention and is not intended to limit the invention to the specific embodiments illustrated.
[0025]The exemplary embodiment of the invention provides a refrigeration system 50 with two stages of refrigerant condensing and metering, having a main refrigeration system and a secondary refrigeration system.
[0026]A two stage condensing and metering refrigeration system is shown in FIG. 1.
[0027]FIG. 1 illustrates the overall refrigeration system 50 comprises a main refrigeration system 52 having main compressor 54, a main condenser 58 having condenser coil 60, a pre metering device 66, a main metering device 76, and a main evaporator 80 having an evaporator coil 84. A secondary mechanical refr...
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A refrigeration system is described having a main refrigeration system containing a main refrigerant and a separate, secondary refrigeration system containing a secondary refrigerant. In flow sequence in the main refrigerating system, an outlet of a main compressor is flow connected to a main condenser; the main condenser is flow connected to a pre-metering device; the pre-metering device is flow connected to an inlet to a cooling path within a secondary evaporator within the secondary refrigeration system; an outlet of the cooling path is flow connected to a main metering device; and the main metering device is flow connected to a main evaporator. The main evaporator is flow connected back to an inlet of the main compressor forming the complete circuit main refrigeration system. The secondary refrigeration system provides a separate mechanical refrigeration circuit with a secondary refrigerant but having the cooling path in the secondary evaporator such that the secondary evaporator cools the main refrigerant in the cooling path by vaporizing of the secondary refrigerant in the secondary evaporator.
Description
BACKGROUND OF THE INVENTION[0001]The present invention is directed to refrigeration systems, particularly to an improved mechanical refrigeration system.[0002]A conventional mechanical refrigeration system 20 is shown in FIG. 3. The refrigeration system comprises a compressor 24, a condenser 26 having a condenser coil 27, a metering device 28 such as an expansion valve, and an evaporator 30 having an evaporator coil 32. Refrigerant gas is drawn into the compressor at point J, is compressed at point A and delivered into the condenser coil at point B. Air can be blown over the condenser coil, or simply ambient air surrounds the condenser coil, wherein the air absorbs heat from the refrigerant within the coil and the refrigerant is thus cooled. The refrigerant gas is condensed into a liquid within the condenser. The liquid refrigerant from the condenser is subcooled and delivered into the metering device at point F and then enters into the evaporator at point G. In the evaporator 30, a...
Claims
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Login to View More IPC IPC(8): F25B7/00
CPCF25B7/00F25B6/04F25B41/39
Inventor ZHONG, LEI
Owner ZHONG LEI