JPH0335893Y2 - - Google Patents

Description

[Detailed Description of the Invention] (Industrial Application Field) The present invention relates to an accumulator that is incorporated into a refrigeration cycle of a refrigerator, an air conditioner, or the like.

(Prior art) An accumulator is used to prevent refrigerant that has not been completely evaporated in the evaporator from being sucked into the compressor in a liquid state, causing a so-called liquid back phenomenon in the compressor. Built into the refrigerant circuit.

An example of a conventional accumulator is shown in FIG.
are arranged independently and spaced apart from each other.
01 is a container of the accumulator 010, 02 is an introduction pipe for introducing refrigerant from an evaporator (not shown) into the container 01, and 03 is a compressor 020 for introducing the refrigerant in the container 01.
The outlet pipe 04 is a partition plate that partitions the inside of the container 01 into upper and lower parts, and the partition plate 04 is provided with a strainer (not shown).

The refrigerant from the evaporator is introduced into the container 01 of the accumulator 010 through the introduction pipe 02.
2 is discharged onto the partition plate 04 from the lower end opening 05. The refrigerant then passes through the strainer of the partition plate 04 and is separated into gas refrigerant and liquid refrigerant. The gas refrigerant is sucked from the upper end opening 06 of the outlet pipe 03,
Compressor 020 via suction pipe 021 of compressor 020
sent to. The liquid refrigerant is placed in container 0 along with the refrigerating machine oil.
1 and the outlet pipe 03 inside the container 01.
A lead-out pipe 0 is drawn from the oil return hole 07 drilled at the bottom of the
3. It is returned to the compressor 020 little by little through the suction pipe 021. The refrigerant sucked into the compressor 020 is compressed here, becomes high temperature and high pressure, and is transferred to the case 022.
The liquid is discharged from the discharge pipe 023 to a condenser (not shown) or the like.

(Problems to be Solved by the Invention) In the conventional accumulator described above, a large amount of liquid refrigerant accumulates in the container 01 depending on the operating conditions of the refrigeration cycle. Then, this liquid refrigerant flows through the opening 06.
The liquid flows into the outlet pipe 03 and is sucked into the compressor 020, causing a so-called liquid back phenomenon in the compressor 020, which causes damage to its valves and the like.

(Means for Solving the Problems) The present invention was proposed to solve the above problems, and its gist consists of a container and a method for introducing refrigerant from an evaporator into the container. In the accumulator, the above-mentioned container is provided with an inlet pipe and a discharge pipe that delivers high-temperature, high-pressure refrigerant gas obtained by compressing the refrigerant in the container into the case and then to a high-pressure housing-type hermetic compressor that discharges the refrigerant gas to the outside. An accumulator characterized in that one side of the container is shared with the case of the high-pressure housing type hermetic compressor, and the container is integrally provided on the outer periphery of the case.

(Function) Since the present invention has the above-mentioned configuration, even if the liquid refrigerant that has not been completely evaporated in the evaporator enters the container through the introduction pipe, this liquid refrigerant remains in the process of being stored in the container. It is heated by the heat that enters from the high-pressure housing-type hermetic compressor through one side of the container that is shared with the case, and is evaporated.

(Embodiment) An embodiment of the present invention is shown in FIGS. 1 to 3. 1 to 3, 10 is an accumulator, 20 is a high-pressure housing-type hermetic compressor that discharges compressed high-temperature, high-pressure refrigerant gas into the case and then to the outside; 1 is a container for the accumulator 10; 2 is the refrigerant from the evaporator into container 1
3 is an outlet pipe that sends the refrigerant in the container 1 to the compressor 20, 4 is a partition plate, 5 is a lower end opening of the introduction pipe 2, 6 is an upper end opening of the outlet pipe 3, 7 is an oil return The hole, 21 is a suction pipe of the compressor 20, 22 is a case, and 23 is a discharge pipe, which are the same as the conventional one shown in FIG. 4. As shown in the figure, the container 1 of the accumulator 10 has a flat cross section, and one inner surface 1a of the container 1 is connected to the high-pressure housing type hermetic compressor 20.
By sharing case 22 with case 2,
It is integrated with 2.

The refrigerant from the evaporator is introduced into the container 1 of the accumulator 10 through the introduction pipe 2, and is discharged onto the partition plate 4 from the lower end opening 5 of the introduction pipe 2. The refrigerant then passes through the strainer of the partition plate 4 and is separated into gas refrigerant and liquid refrigerant. The gas refrigerant is sucked through the upper end opening 6 of the outlet pipe 3 and sent to the compressor 20 via the outlet pipe 3 and the suction pipe 21. The liquid refrigerant accumulates in the lower part of the container 1 along with the refrigerating machine oil, but since one side 1a of the container 1 is shared with the case 22 of the compressor 20, it is heated by the case 22 and vaporized, and the liquid refrigerant is vaporized at the upper end of the outlet pipe 3. The air is sucked into the compressor 20 from the opening 6 through the outlet pipe 3 and the suction pipe 21. Refrigerating machine oil is returned to the compressor 20 from the oil return hole 7 through the outlet pipe 3 and the suction pipe 21. The gas refrigerant sucked into the compressor 20 is compressed here, becomes high temperature and high pressure, is discharged into the case 22, and is sent out from the discharge pipe 23 to the condenser. In the above embodiment, one side 1a of the container 1 of the accumulator 10 is brought into close contact with the case 21 of the compressor 20, but the one side 1a of the container 1 can also be used in common with the case 21 of the compressor 20.

(Effects of the invention) In this invention, one side of the container is shared with the case of a high-pressure housing-type hermetic compressor that discharges compressed high-temperature, high-pressure refrigerant gas into the case and then to the outside. While the liquid refrigerant that has not been completely evaporated in the refrigerant is stored in the accumulator, it is efficiently heated and evaporated by the heat that enters from the high-pressure housing-type hermetic compressor through one side that is shared with the case. Therefore, the so-called liquid back phenomenon in which liquid refrigerant is sucked into the compressor is prevented, and damage to valves and the like due to liquid compression can be prevented. Moreover, since the accumulator container is provided integrally with the outer periphery of the hermetic compressor case, they are made smaller as a whole, and the installation space can be saved.

[Brief explanation of the drawing]

1 to 3 show one embodiment of the present invention, in which FIG. 1 is a partially sectional front view, FIG. 2 is a side view, and FIG. 3 is a plan view. FIG. 4 is a partially sectional front view showing an example of a conventional accumulator. 10...Accumulator, 20...Compressor, 1
...Container, 1a...One side, 2...Introduction tube, 3...
Outlet pipe, 22... Compressor case.

Claims (1)

[Scope of utility model registration request] A container, an introduction pipe for introducing refrigerant from the evaporator into the container, and a compressed high temperature/introduction pipe for introducing the refrigerant from the evaporator into the container.
In an accumulator equipped with a discharge pipe for discharging high-pressure refrigerant gas into a case and then sending it out to a high-pressure housing-type hermetic compressor, one surface of the container is shared with the case of the high-pressure housing-type hermetic compressor. An accumulator characterized in that the container is integrally provided on the outer periphery of the case.