KR920010231A - Refrigerant regeneration and purification method and apparatus - Google Patents

Abstract

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Description

Refrigerant regeneration and purification method and apparatus

Since this is an open matter, no full text was included.

1 is a schematic diagram of a refrigerant regeneration and purification system for explaining the principles of the present invention;

2 is a flow diagram of an implementation program for controlling the elements of the present invention in a steam regeneration cycle.

3 is a flowchart of an implementation program for controlling an element of the present invention in a regeneration operation cycle.

Claims (6)

A first conduit means 20 for compressing the gas refrigerant to be transferred to the refrigerant regeneration device and for connecting a compressor means 44 having a suction port 42 and a discharge port 48 and a cooling system to the suction port of the compressor means. 30, 36, 40, condenser means 60 for passing a refrigerant having an inlet 58 and an outlet 64, and second conduit means for connecting the inlet of the condenser means and the discharge port of the compressor means. Apparatus for regenerating compressor refrigerant from a cooling system comprising (54,56), refrigerant storage means (86), and third conduit means (66,82) connecting refrigerant storage means and outlets of the condenser means. A fourth conduit means (94) connecting the first conduit means and the refrigerant storage means, and located between the fourth conduit means and the first conduit means and located in the first conduit means upstream between the open and closed states. Operable first valve means SV3 and third conduit means A second valve means (SV4) located in and operable between an open state and a refrigerant expanded state, a third valve means (SV1) located in a fourth conduit means and operable between an open state and a closed state, and associated with the compressor protection Sensing means for sensing the system control variables 110, P2, P3 and providing a signal having a value representing the sensed system control variable, a setting for receiving a signal provided by the sensing means, the compressor not being adversely affected In response to a signal having a value in the range, the first valve means SV3 is opened, the second valve means SV4 is opened and the third valve means SV1 is operated in a closed state, and the compressor is operated in reverse. In response to a signal having a set range value, the first valve means SV3 is closed, the second valve means SV4 is refrigerant expanded, and the third valve means SV1 is opened. And a processor means (108) for activating. 2. The apparatus of claim 1, wherein the means for sensing system control variables comprises: first pressure transducer means (P2) for sensing the pressure of the refrigerant entering the compressor (44) and providing a first pressure signal indicative of the pressure; Second pressure transducer means P3 for providing a second pressure transducer means P3 for sensing the pressure of the refrigerant leaving the compressor and providing a second pressure signal indicative of the pressure, and determining the pressure ratio through the compressor and And means for processing the first pressure signal and the second pressure signal to provide a signal having a value representing a sensed system control variable that is a pressure ratio. 5. The apparatus of claim 1, further comprising: means (32,38) for purifying the refrigerant passing through the first conduit means from the cooling system to the compressor, and a fifth in fluid communication with the second conduit means such that one end removes the amount of refrigerant. On the conduit means 102, the first conduit means downstream from the purging means, the sixth conduit means 106 in fluid communication with one end thereof, and the fifth conduit means 102 and the sixth conduit means 106. Means (104) for operatively supporting a refrigerant purifying sampling tube in sealing fluid communication with the other end to the fifth and sixth conduit means so as to make a mutual fluid flow connection; A second valve means (SV2) operable, a third valve means (SV5) located in the sixth conduit means and operable between the open and closed states, and a fourth valve located in the fourth conduit and operable between the open and closed states Means SV1, Power the accumulator and operate the system in the refrigerant regeneration mode by operating the first valve means SV3 open and the second and third valve means SV6, SV5, SV1 closed; Closed refrigerant which powers the compressor and operates the first, second and third valve means (SV3, SV6, SV5) in the closed state and operates the fourth valve means (SV1) in the open state to define the refrigerant purification operation mode. To define the circulation passage, to power the compressor 44, to operate the first valve means SV3 to the closed position and to operate the fourth, second and third valve means SV1, SV6, SV5 And means (108) for defining a refrigerant circuit in a refrigerant characteristic test operating mode through which refrigerant passes through a refrigerant purification sampling tube. The fifth conduit means (15) according to claim 1, wherein the fifth conduit means (15) connects the cooling system (12) to the refrigerant storage means (86), and a fourth valve located in the fifth conduit means (15) and operable between an open and closed state. Means (SV7), the fifth conduit means (15) defines a refrigerant passage from the cooling system (12) directly to the refrigerant storage means (86), the first valve means (SV3) is sealed and the fourth valve When both the means SV1 and the fifth valve means SV7 are open, the fourth conduit means 94, 30, 40 from the refrigerant storage means 86, the compressor means 44, the second conduit means 54, 56, the refrigerant flowing back to the refrigerant storage means 86 through the condenser means 60, the third conduit means 66, 82 and the expansion means 74 located therein is the temperature in the refrigerant storage means 86 and And to form a cooling circuit that reduces the pressure to assist flow from the cooling system 12 through the first conduit to the storage means, When the one valve means SV7 and the fourth valve means SV7 are closed and the third valve means SV1 are open, the regeneration device is isolated from the cooling system 12 and the cooling circuit is kept in temperature and pressure in the regeneration device. Refrigerant regeneration device, characterized in that configured to be operated in a closed circuit to drop. 5. The apparatus of claim 4, further comprising: means (92) for sensing the height of the liquid in the refrigerant storage means (86) and generating a signal indicative of the liquid height in the refrigerant storage means; and receiving a continuous signal indicative of the liquid height and storing the refrigerant. Determine the rate of liquid height increase in the means and generate a signal indicative of the liquid height increase rate, receive a signal indicative of the liquid height increase rate, and react to a liquid increase rate above the set liquid height increase rate indicative of regeneration of the liquid refrigerant from the cooling system 12. To operate the first valve means SV7 in an open state and to operate the second valve means SV3 in a closed state, and to increase the liquid height below the set liquid height increase rate indicating the regeneration of the liquid refrigerant from the cooling system 12. The first valve means SV7 is closed and the first valve means SV3 is opened in response to a signal indicating. Refrigerant and reproducing apparatus comprising a processor means (108). 5. The system of claim 4, further comprising sensing and sensing system control variables (P2, P3, Tstor) having a detectable change value occurring at a time relative to the time when the phase of the refrigerant to be removed from the cooling system (12) changes from liquid to steam. Means for providing a signal indicating that a possible change has occurred and operating the first valve means (SV7) in the open state and the second valve means (SV3) in the closed state to cool the liquid refrigerant through the first conduit from the cooling system; Operate the device to remove, and in response to the signal indicating that a detectable change has occurred, the first valve means (SV7) to the closed position to remove the gas refrigerant through the fifth conduit from the cooling system to the second valve means (SV3). Means (108) for operating the apparatus to an open position. ※ Note: The disclosure is based on the initial application.