JPH0648282Y2 - Filter dryer for heat exchanger - Google Patents

Description

[Detailed Description of the Invention] [Industrial field of application] The present invention relates to a filter dryer for a heat exchange device used in a refrigerator, a room cooler, etc., and in particular, a liquid refrigerant passes through a refrigerant outlet portion of the filter dryer. In this case, the present invention relates to a filter dryer that reduces noise generated.

[Conventional technology]

The conventional filter dryer has a main body (4) filled with a dehumidifying agent (6) as shown in FIG. After inserting and crimping the filter frame (3) containing the filter (2), both ends of the main body (4) are axially penetrated so as to match the connection pipe diameter of the heat exchange device, but the refrigerant outlet port has Capillaries for reducing evaporation pressure (5)
It has a structure in which is connected.

[Problems to be solved by the invention]

In such a conventional filter dryer, since the inner end of the capillary tube and the filter frame (3) are separated from each other, there is a space (A) between them. After the high-pressure liquid refrigerant passing through the dryer flows through the filter (2) and then flows into the capillary tube (5) from the inside of the space (A), some of the liquid refrigerant cannot pass straight and a vortex phenomenon occurs. Since it is generated, there was a problem of making noise.

[Means for solving problems]

In order to solve such a problem, the present invention connects a filter frame and a capillary tube with a refrigerant conduit whose inlet side is curved and expanded so that the refrigerant passing through the filter can be smoothly discharged into the capillary tube. As a result, unnecessary eddy current noise is reduced.

[Action]

According to the present invention, since the pipe expansion surface on the inlet side of the refrigerant conduit is attached to the filter frame attached to the refrigerant outlet portion of the filter dryer body, this processing surface guides the flow of the refrigerant to be smooth. Become.

〔Example〕

Embodiments of the present invention will be described below in detail with reference to the accompanying drawings.

According to the present invention, as shown in FIG. 2, the inlet side (1a) of the refrigerant conduit (1) is expanded and bonded to the outlet side of the filter frame (3) containing the filter (2). The frame is assembled so as to be located at a certain portion on the refrigerant outlet side of the main body (4), and the main body (4) of the portion (R) is embossed inward so that the filter frame (3) is fixed, The tip of the main body (4) is axially machined, and a capillary tube (5) and a refrigerant conduit tube (1) with its inner end inserted are fixed together.

In FIG. 1 and FIG. 2, the filter frame (3) containing the filter (2) is fixed in the embossed inside of the main body (4) of the filter dryer (4), and both filter frames ( Dehumidifying agent (6) between 3)
Is filled with a condenser (not shown)
The liquid refrigerant flowing out of the filter dryer main body (4) enters through the refrigerant inlet section (lower) on the left side, passes through the filter and the dehumidifying agent (6), and then is fixed to the right refrigerant outlet section of the main body (4). Passing through the filter (2) of the existing filter frame (3), the inlet side (1) of the refrigerant conduit (1)
Since the expansion surface of a) is bound to the inside of the curved surface on the outlet side of the filter frame (3), the liquid refrigerant smoothly flows through the refrigerant conduit (1) without causing the vortex phenomenon, and then the capillary tube (5). Is flowed into.

[Effect of device]

As is clear from the above description, the present invention eliminates the vortex phenomenon that occurs when the liquid refrigerant passes through the refrigerant outlet portion of the main body of the filter dryer, and the irregular abnormal noise amplitude is reduced.
It will be reduced by about 2 dB.

[Brief description of drawings]

1 is a partially cutaway perspective view of the present invention, FIG. 2 is a partially cutaway front view of the present invention, FIG. 3 is a sectional view taken along line AA of FIG. 2, and FIG. FIG. 5 is a side view in which a refrigerant outlet of a conventional filter dryer is cut out. 1 ... Refrigerant conduit, 2 ... Filter, 3 ... Filter frame,
4 ... Main body.

Claims (1)

[Scope of utility model registration request] 1. A filter dryer, which is connected between a condenser and a capillary tube to remove water and foreign substances, and has a pipe expansion surface formed at the inlet side of a refrigerant conduit (1). Is attached to the outlet side of the filter frame (3) in which the filter (2) is built in, and the inner side of the capillary tube (5) is inserted into the outlet side of the refrigerant conduit (1) to assemble the main body ( 4) The end of the refrigerant outlet side of 4) is axially processed to connect and connect the refrigerant conduit (1) and the capillary tube (5) so that the liquid refrigerant smoothly flows out to the capillary tube (5) through the conduit (1). A filter dryer for a heat exchange device, which is configured as follows.