JPS5843743Y2 - Air conditioner accumulator - Google Patents

Description

[Detailed description of the invention] This invention is an air conditioner, especially a large-sized air conditioner that requires a liquid receiver, in which the liquid receiver and the accumulator are integrated, and the effect as a liquid receiver and an accumulator is achieved. The purpose is to increase

Regarding the liquid receiver and accumulator installed in the middle of the refrigeration cycle of an air conditioner, the liquid receiver prevents the capacity of the refrigeration cycle from decreasing due to large changes in the amount of condensation and evaporation of the refrigerant. Therefore, it is provided to increase the amount of refrigerant circulation.

On the other hand, an accumulator is installed in the evaporator in case the refrigerant cannot be completely evaporated, so that only the vaporized refrigerant is returned to the compressor so that the liquid does not back up to the compressor, thereby preventing damage to the valves of the compressor.

However, these accumulators and liquid receivers
Although it is provided with a range of balance between the amount of condensation and the amount of evaporation, depending on the operating conditions of the air conditioner, it may not be able to absorb all the liquid, so it has the disadvantage that it cannot be used as a satisfactory liquid receiver or accumulator.

The present invention was devised in view of the above, and a liquid receiver is provided in the accumulator, and heat exchange fins are provided on the liquid receiver to increase heat exchange efficiency and promote liquefaction within the liquid receiver. , which enhances the promotion of gasification in the accumulator and performs efficient refrigeration cycle operation.

An embodiment of the present invention will be described below with reference to FIGS. 1 and 2.

In the figure, 1 is an accumulator, which is provided midway on the suction pipe side, and is provided with a gas port 2 and a gas outlet 3.

The gas-liquid mixed refrigerant that entered from the gas port 2 is discharged from the discharge port 5 toward the wall of the accumulation chamber 4, and is discharged from the wall and the fins 6.
The refrigerant gas enters from the suction lower, passes through the U-shaped pipe 8, and returns to the compressor from the gas outlet 3.

The U-shaped tube 8 is provided with an oil return port 9.

Reference numeral 10 denotes a liquid receiver section, in which a refrigerant outlet 12 is provided at an angle of 11° below the refrigerant from the condenser.

A spirally wound fin 6 is provided on the outside of the liquid receiver portion 10.
is installed, and the high-temperature liquid refrigerant condensed in the condenser and the low-temperature gas refrigerant evaporated in the evaporator exchange heat with each other, liquefy the refrigerant in the receiver section 10, and release the refrigerant in the accumulation chamber 4. The refrigerant is gasified.

In the above configuration, to explain the operation, the high temperature liquid refrigerant flowing from the condenser side enters from the refrigerant port 11,
In the heat receiver section 10, while heat is exchanged with the refrigerant in the accumulation chamber 4, liquefaction in the receiver section 10 is promoted, and the refrigerant outlet 1
2, the gas-liquid mixed refrigerant flows into the accumulation chamber, and vaporization is promoted by the heat of the high-temperature refrigerant passing through the liquid receiver part 10, and the gasified refrigerant is sucked from the absorption lower and passes through the gas outlet. Return to the compressor from 3.

In this way, the present invention provides a liquid receiver section within the accumulator, and a spiral fin is provided outside this liquid receiver section.
In order to improve the heat exchange efficiency, a part of the liquid of the gas-liquid heated refrigerant returning from the evaporator side rides on the fins and flows down in a spiral shape.
Since evaporation occurs during the process, gasification in the accumulation chamber is promoted, and heat is transferred both in the liquid receiver and in the accumulation chamber, resulting in efficient refrigeration cycle operation. be.

In addition, the size of the condenser can be reduced to match the thermal efficiency, and by integrating the accumulator and liquid receiver, space within the product can be saved. It is something that you have.

[Brief explanation of drawings]

FIG. 1 is a sectional view of an accumulator that integrates a liquid receiver and an accumulator according to the present invention, and FIG. 2 is a top view of the same. 4... Accumulation chamber, 6... Fin,
10...Liquid receiver part.

Claims (1)

[Scope of utility model registration request] A liquid receiving part formed in a cylindrical shape through which high-temperature refrigerant passes and has spiral fins on the outer periphery, an accumulation chamber with this liquid receiving part in the center of the interior, and a cyclone on the wall of the accumulation chamber and the spiral fins. A discharge port is provided to discharge the gas-liquid mixed refrigerant in a shape, and a gas outlet is provided to take the gasified gas refrigerant in the accumulation chamber and return it to the compressor. Air conditioner accumulator that exchanges heat with refrigerant