JPH0429344Y2 - - Google Patents

Description

[Detailed Description of the Invention] Industrial Application Field This invention relates to a liquid receiver used in a refrigeration cycle such as a car air conditioner.

BACKGROUND ART AND PROBLEMS The one shown in FIG. 2 is known as this type of liquid receiver. In this liquid receiver, refrigerant is introduced into a closed tank 31 from an inlet passage 32 and stored therein, and the stored refrigerant is discharged from an outlet passage 34 through a suction pipe 33.

When the refrigerant is introduced, the refrigerant flows out vigorously from the opening in the tank of the inlet passage 32, so the outflowing refrigerant collides with the refrigerant stored in the tank 31, and in order to stir this, bubbles are created in the refrigerant. occurs, resulting in undesirable phenomena such as refrigerant overfilling.

The purpose of this invention is to provide a liquid receiver for a refrigeration cycle that solves the above problems.

Means for Solving the Problems In the liquid receiver for a refrigeration cycle according to this invention, a refrigerant inlet passage and a refrigerant outlet passage are provided at the top of a sealed tank so that one end of each is opened downward in the tank, and the refrigerant In a liquid receiver for a refrigeration cycle in which the upper end of a vertical refrigerant suction pipe is connected to the outlet passage, a float for preventing refrigerant agitation is sealed in the tank, and the float is formed in an annular shape through which the refrigerant suction pipe passes. It is characterized by the fact that

Function In the liquid receiver for a refrigeration cycle according to this invention, a float for preventing refrigerant agitation is sealed in the tank, so the refrigerant flowing into the tank from the refrigerant inlet passage hits the float, and the liquid level of the refrigerant in the tank Since the refrigerant does not fall directly onto the tank, agitation of the refrigerant in the tank is prevented.

Furthermore, since the float is formed into an annular shape and the refrigerant suction pipe is passed through it, the float can absorb refrigerant without tilting or falling over as the liquid level in the tank changes. Guided by a tube, it moves up and down smoothly.

Embodiment An embodiment of this invention will now be described with reference to FIG.

The liquid receiver includes a closed tank 11. A raised portion 13 is provided at the center of the top wall 12 of the tank 11, and a male threaded cylindrical portion 14 for connecting an inlet refrigerant pipe protruding to the left and a male threaded cylindrical portion 15 for connecting an outlet refrigerant pipe protruding to the right are provided on this. It is being A refrigerant inlet passage 16 extends upward from the lower surface of the top wall 12 and communicates with the inside of the male threaded cylinder part 14 for connecting the inlet side refrigerant pipe in a part to the left of the center of the raised part 13, and a refrigerant inlet passage to the right part thereof. A refrigerant outlet passage 17 extending parallel to the refrigerant pipe 16 and communicating with the inside of the male threaded cylinder part 15 for connecting the refrigerant pipe on the outlet side is provided. The opening end of the refrigerant outlet passage 17 in the tank faces downward;
The upper end of the refrigerant suction pipe 18 is connected to this.
A peephole 19 is provided above the vertical part of the refrigerant outlet passage 17.
is provided, and a glass transparent body 20 is fitted therein. A strainer 21 is provided at the lower end of the suction pipe 18.
is installed. Further, a desiccant 22 is arranged around the suction pipe 18 in the tank 11. A float 23 is enclosed within the tank 11. The float 23 is formed of a plastic material into a hollow annular shape, and the suction pipe 18 is passed through the center hole 24 above the desiccant 22. The outer diameter of the float 23 is slightly smaller than the inner diameter of the peripheral wall 25 of the tank 11, and the inner diameter of the center hole 24 is slightly larger than the outer diameter of the suction pipe 18. A gap is provided between the periphery and the outer periphery of the suction pipe 18 through which the refrigerant passes.

The refrigerant flowing out from the open end of the refrigerant inlet passage 16 inside the tank falls and is received by the float 23, flows through the above-mentioned gap below the float 23, and is stored at the bottom of the tank 11. The liquid level of the refrigerant stored in this way fluctuates, but the float 23 moves up and down accordingly, and the float 23 always floats on the same liquid level and covers the same liquid level. Since the refrigerant does not come into direct contact with the liquid surface, there are not many bubbles generated in the refrigerant.

Effects of the invention According to this invention, the refrigerant flowing into the tank from the refrigerant inlet passage hits the float and does not fall directly onto the liquid surface of the refrigerant in the tank, thereby preventing agitation of the refrigerant in the tank. Of course, as the liquid level in the tank fluctuates, the float is guided by the refrigerant suction pipe and moves up and down smoothly without tilting or tipping over. Since the surface is always covered with the float, a more reliable effect of preventing refrigerant agitation is exhibited.

[Brief explanation of the drawing]

FIG. 1 is a longitudinal sectional view showing an embodiment of this invention, and FIG. 2 is a longitudinal sectional view showing a conventional example. 11...tank, 12...top (top wall), 16
...Refrigerant inlet passage, 17...Refrigerant outlet passage, 18
...Refrigerant suction pipe, 23...Float.

Claims (1)

[Claims for Utility Model Registration] A refrigerant inlet passage 1 is provided at the top 12 of the sealed tank 11.
6 and a refrigerant outlet passage 17 are provided such that one end of each is opened downward in the tank 11, and the upper end of a vertical refrigerant suction pipe 18 is connected to the refrigerant outlet passage 17. A liquid receiver for a refrigeration cycle, characterized in that a float 23 for preventing refrigerant agitation is enclosed in a tank 11, the float 23 is formed in an annular shape, and a refrigerant suction pipe 18 is passed through the float 23.