JPH0123094Y2 - - Google Patents

Description

[Detailed Description of the Invention] The present invention relates to an improvement of an accumulator used in a refrigerator or the like. That is, in an accumulator having an outlet pipe extending through the lower part and a filter attached to the lower end of the inlet pipe connected to the upper part via a filter fitting, a helical gas-liquid separation plate is fitted inside the filter. This is an accumulator that efficiently separates the gas-liquid mixed refrigerant that is injected into the main body from the inlet pipe into gas and liquid, and sucks only the gas into the outlet pipe connected to the compressor.

Conventionally, there are various structures of accumulators,
As shown in FIG.
A refrigerant in the form of a gas-liquid mixture is injected from the injection hole 3 on the side surface of the lower end, and the gas is sucked in from the suction port 5 at the upper end of the outlet pipe 4 connected to the compressor, or as shown in Fig. 2. An inlet pipe 2 with an injection hole 3 at the lower end and an outlet pipe 4 with an inlet 5 at the upper end.
Alternatively, as shown in Fig. 3, a perforated partition plate 7 with passage holes 6 provided at eccentric positions is fitted to partition the inlet pipe 2 and outlet pipe 4. There is one that separates gas and liquid using a hole partition plate 7. In addition, as shown in FIG. 4, there is a structure in which a filter 8 is fitted to the lower end of the inlet pipe 2, the filter 8 separates gas and liquid, and only the gas that has passed through the filter 8 is sucked into the outlet pipe 4.

However, all of them have a drawback that the gas-liquid separation effect is low, and liquid enters the suction port 5 of the outlet pipe 4, making it difficult to function as an accumulator.

The present invention is an improvement on the conventional structure of the accumulator shown in FIG. 4, and improves the gas-liquid separation efficiency by the cyclone action of the helical gas-liquid separation plate installed inside the filter 8.

Next, the present invention will be explained with reference to an embodiment shown in FIG. The accumulator main body 1 has an inlet pipe 2 connected to the upper part, an outlet pipe 4 installed in the lower part thereof, and a filter 8 is attached to the lower end of the inlet pipe 2 located inside the main body 1 via a filter fitting 9. A helical gas-liquid separation plate 10 is fitted inside the filter 8 as shown in enlarged views in FIGS. 6 and 7. Therefore, the gas-liquid mixed refrigerant injected from the upper part of the spiral gas-liquid separation plate 10 generates a swirling flow by the spiral gas-liquid separation plate 10, and the liquid is scattered outward by centrifugal force and becomes gas. The liquid is separated, and the gas swirls downward while removing the liquid. After passing through the filter 8, it flows into the suction port 5 at the upper end of the outlet pipe 4, and is sent to the connected compressor (not shown). The liquid scattered in the centrifugal direction from the helical gas-liquid separation plate 10 hits the side wall of the filter 8, and the gas passes through the filter 8 and flows into the suction port 5.

Since the separation effect of the helical gas-liquid separation plate 10 differs depending on the flow rate of the refrigerant, the pitch of the helices and the number of helices are appropriately set according to the flow rate. Further, as shown in FIG. 8, it can be divided into one turning unit and the required number can be connected by a connecting shaft 11 for use.

As described above, the present invention improves the conventional most efficient filter-based accumulator and further improves the refrigerant gas-liquid separation effect. It is extremely effective in practice because it can be replaced as appropriate.

[Brief explanation of drawings]

Figures 1, 2, 3, and 4 are all schematic structural diagrams of a conventional accumulator, Figure 5 is a vertical cross-sectional view of the accumulator according to the present invention, and Figure 6 is the inside of the filter, which is the main part of the present invention. A partially cutaway view showing the helical gas-liquid separation plate part, FIG. 7 is A of FIG.
-A' partial sectional view, and FIG. 8 is a perspective view of another embodiment of the helical gas-liquid separation plate. In the figure, 1 accumulator body, 2 inlet pipe, 3 injection hole, 4 outlet pipe, 5 suction port, 6 passage hole, 7 perforated partition plate, 8 filter, 9 filter metal fittings, 10 spiral gas-liquid separation plate, 11 connection The axis is shown.

Claims (1)

[Scope of utility model registration request] In an accumulator in which an outlet pipe 4 is provided through the lower part and a filter 8 is attached to the lower end of the inlet pipe 2 connected to the upper part via a filter fitting 9, a helical gas-liquid separation plate 10 is installed inside the filter 8. Accumulator that is fitted.