JPS6055787U - Parallel compression refrigeration equipment - Google Patents

Abstract

(57) [Summary] This bulletin contains application data before electronic filing, so abstract data is not recorded.

Description

[Brief explanation of the drawing]

Fig. 1 is a piping diagram of a conventional parallel compressor type refrigeration system, and Fig. 2 shows a suction pipe 3 of the refrigeration cycle in Fig. 1 branched into a first gas suction pipe 4 and a second gas suction pipe 5. Branch 6
FIG. 3 is a piping diagram of a parallel compression refrigeration system showing one embodiment of this invention, and FIG.
A detailed sectional view showing an enlarged branch part 6 where the second gas suction pipe 5 branches from the vertical part of the first gas suction pipe 4, FIG. 5 is another embodiment of the branch part 6. This is an enlarged detailed cross-sectional floor showing. FIG. 6 is a detailed cross-sectional view showing still another embodiment of a branch part where the suction pipe 3 of the refrigeration cycle branches into a first gas suction pipe 4 and a second gas suction pipe 5. In the figure, 1 is a first refrigerant compressor, 2 is a second refrigerant compressor, 4 is a first gas suction pipe, 5 is a second gas suction pipe, 1
1 is a check valve, 12 is a branch portion, 401 is an inner wall surface of the first gas suction pipe 4, and 501 is an open end of the second gas suction pipe 5. In each figure, the same reference numerals indicate the same or corresponding parts. Correction 1982.12. 7. The scope of claims for utility model registration shall be amended as follows. O Utility Model Registration Claims First and second refrigerant compressors, the first refrigerant compressor and the second refrigerant compressor are connected to each other, and the first refrigerant compressor is connected to the second refrigerant compressor. an oil equalizing pipe having a check valve that allows oil to flow only to the refrigerant compressor; a first gas suction pipe that extends in the vertical direction and passes gas to the first refrigerant compressor; and a first gas suction pipe. The opening end of this branch portion protrudes inward from the inner wall surface of the first gas suction pipe.
a second refrigerant compressor that communicates the gas suction pipe with the second refrigerant compressor;
Parallel compression refrigeration equipment with gas suction pipes. The brief description of the drawing has been amended as follows. In the specification, on the first page of page 21, the phrase "parallel compressor type refrigeration system" has been corrected to read "parallel compression type refrigeration system." In the specification, on page 21, line 19, the phrase "branching part 6" is corrected to "branching part 6."

Claims (1)

[Scope of utility model registration request] A first and a second refrigerant compressor, the first refrigerant compressor and the second refrigerant compressor are connected to each other, and the oil flows only from the first refrigerant compressor to the second refrigerant compressor. A pressure equalizing pipe having a check valve that allows for the same, a first gas suction pipe extending in the vertical direction and through which gas passes to the first refrigerant compressor, and branching from the first gas suction pipe and a branching portion thereof. The opening end of the first gas suction pipe projects inward from the inner wall surface of the first gas suction pipe.
a second refrigerant compressor that communicates the gas suction pipe with the second refrigerant compressor;
Parallel compression refrigeration equipment with gas suction pipes.