JPH09159319A - Refrigerant distributor - Google Patents

Abstract

PROBLEM TO BE SOLVED: To distribute refrigerant uniformly or at a desired distribution ratio by a method wherein a refrigerant distributor includes a refrigerant inlet pipe having a curved part near the tip, and a refrigerant outlet pipe having a collision wall where refrigerant spouted from the inlet pipe collides. SOLUTION: A refrigerant distribution pipe 5 includes a refrigerant inlet pipe 1 with a curved part 3 and a refrigerant outlet pipe 2 that is connected to the inlet pipe 1 and has a collision wall 4. When the direction vector of the influent refrigerant shifts due to a scatter in the connection accuracy of the inlet pipe 1, the influent refrigerant concentrates on the periphery of the curved part by the curved part 3 and always collides against the collision wall 4 of the outlet pipe 2 at a constant angle. Thereby, the refrigerant is prevented from being unevenly distributed without influences of scatter in connection accuracy of the influent pipe 1, a deflection of influent refrigerant and posture of the refrigerant distributor.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a refrigerant flow divider for dividing a refrigerant in a refrigerating cycle such as an air conditioner or a refrigerator in a uniform or arbitrary dividing ratio.

[0002]

2. Description of the Related Art A conventional refrigerant flow divider of this type will be described with reference to the drawings.

As shown in FIG. 5, in a conventional refrigerant flow divider, a refrigerant inflow pipe 8 and two refrigerant outflow pipes 9 are connected to a main body 7, and a flow dividing section 10 for dividing the inflowing refrigerant into two flows. There was a wall parallel to the direction.

[0004]

However, in the above-mentioned configuration, except for the case where the gas-phase refrigerant is branched, the connection accuracy of the refrigerant inflow pipe 8 and the molding accuracy of the main body 7 including the flow dividing portion 10 are varied. However, there was a problem that a uniform flow distribution could not always be obtained.

Further, there is a problem that the refrigerant is not evenly distributed in a part of the cross section of the refrigerant inflow pipe except when the gas-phase refrigerant is diverted due to the shape of the refrigerant inflow pipe 8, that is, bending. .

Further, depending on the posture of the refrigerant distributor 7, there is a problem that the refrigerant is affected by gravity and uniform distribution cannot be obtained except when the gas-phase refrigerant is branched.

The present invention is intended to solve the above-mentioned problems of the prior art, and eliminates the influence of variations in the connection accuracy of the refrigerant inflow pipe, eliminates the effect of uneven flow of the inflow refrigerant, and the effect of bending of the refrigerant inflow pipe. It is an object of the present invention to eliminate the influence of the attitude of the refrigerant shunt and to realize a uniform refrigerant shunt or an arbitrary shunt ratio.

[0008]

In order to solve the above problems, the present invention forms an R portion near the tip of a refrigerant inflow pipe.

Further, according to the present invention, a recess is provided on the outer circumference of the R portion of the refrigerant inflow pipe. In addition, the present invention relates to the R of the refrigerant inflow pipe.
A depression is provided on the outer circumference of the portion, and the inclination of a straight line connecting the apex of the depression and the central axis of the refrigerant inflow pipe is arbitrarily changed.

[0010]

BEST MODE FOR CARRYING OUT THE INVENTION The present invention forms an R portion in the vicinity of the tip of a refrigerant inflow pipe so that centrifugal force acts on the refrigerant in the refrigerant inflow pipe to intentionally concentrate the refrigerant at a portion on the outer periphery of the R portion. By colliding with the collision wall surface of the outflow pipe at a constant angle, it is possible to eliminate the influence of the accuracy of connection of the inflow pipe, the influence of the uneven flow of the inflow refrigerant, and the influence of the attitude of the refrigerant shunt, and to obtain a uniform flow distribution.

In the present invention, the R near the tip of the refrigerant inflow pipe is
By forming a recess on the outer circumference of the part and intentionally concentrating the refrigerant to which the circular force is applied to the lower part of the recess to collide with the collision wall surface of the refrigerant outflow pipe at a constant angle, variations in inflow pipe connection accuracy and inflow refrigerant It is possible to eliminate the influence of uneven flow and the influence of the attitude of the refrigerant shunt, and obtain a uniform shunt.

Further, according to the present invention, R near the tip of the refrigerant inflow pipe is
By forming a recess on the outer circumference of the part and intentionally concentrating the refrigerant to which the circular force is applied to the lower part of the recess to collide with the collision wall surface of the refrigerant outflow pipe at a constant angle, variations in inflow pipe connection accuracy and inflow refrigerant By eliminating the influence of uneven flow and the influence of the attitude of the refrigerant flow diverter, and by arbitrarily changing the inclination of the straight line connecting the apex of this depression and the central axis of the refrigerant inflow pipe, the flow line of the inflowing refrigerant can be controlled arbitrarily. It is possible to obtain a uniform diversion or an arbitrary diversion ratio.

[0013]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS A refrigerant flow divider according to an embodiment of the present invention will be described below with reference to the drawings.

In FIG. 1, reference numeral 1 denotes a refrigerant inflow pipe, which is connected to a refrigerant outflow pipe 2. Further, the refrigerant inflow pipe 1 is provided with an R portion 3. The refrigerant outlet pipe 2 has a collision wall portion 4.

The refrigerant flow divider 5 configured as described above is
Even when the direction vector of the inflowing refrigerant is deviated due to the variation in the connection accuracy of the refrigerant inflow pipe 1, the inflowing refrigerant concentrates on the outer periphery of the R part and collides with the collision wall surface of the refrigerant outflow pipe at a constant angle, It is possible to prevent the unevenness of the connection accuracy of the inflow pipe, the influence of the uneven flow of the inflowing refrigerant, and the influence of the attitude of the refrigerant distributor to prevent the uneven refrigerant distribution.

Further, as shown in FIG. 2, a recess is provided on the outer periphery of the R portion near the tip of the refrigerant inflow pipe, and the refrigerant to which the concentric force is applied by the R portion is intentionally concentrated on the lower portion of the recess to the collision wall surface of the refrigerant outflow pipe. By colliding at a constant angle, it is possible to eliminate variations in the accuracy of connection of the inflow pipes, influences of uneven flow of the inflowing refrigerant, and influences of the attitude of the refrigerant shunt, and to prevent uneven shunting more reliably.

As shown in FIG. 3, a recess is provided on the outer circumference of the R portion near the tip of the refrigerant inflow pipe, and the inclination of the straight line connecting the apex of this recess and the central axis of the refrigerant inflow pipe is arbitrarily changed. Arbitrarily control the flow line of the inflowing refrigerant, eliminate the effects of variations in inflow pipe connection accuracy, uneven flow of the inflowing refrigerant, and effects of the refrigerant shunt posture, and prevent uneven shunting or obtain more reliable shunt ratio. You can

In the above-described embodiment, the shape of the recess of the refrigerant inflow pipe R portion is formed by the tangent line of the cross section of the refrigerant inflow pipe. However, even if the cross-sectional shape of the recess is a ridge-shaped groove, it is equivalent. The effect of can be obtained.

In the above-mentioned embodiment, the R part of the refrigerant inflow pipe has been described as being a quarter of a circular arc. However, the shape of this R part is another circular arc, for example, a shape as shown in FIG. However, the same effect can be obtained.

[0020]

According to the present invention, as is apparent from the above description,
By forming the R portion in the vicinity of the tip of the refrigerant inflow pipe, it is possible to eliminate variations in connection accuracy of the refrigerant inflow pipe, effects of uneven flow of the inflowing refrigerant, and effects of the attitude of the refrigerant shunt, and to obtain a uniform flow distribution.

Further, according to the present invention, R is provided near the tip of the refrigerant inflow pipe.
By forming the portion and forming the recess on the outer peripheral portion thereof, it is possible to eliminate the variation in the connection accuracy of the refrigerant inflow pipe, the influence of the inflow of the inflowing refrigerant and the influence of the attitude of the refrigerant shunt, and to obtain the uniform flow distribution.

In the present invention, the R near the tip of the refrigerant inflow pipe is
By providing a dent on the outer periphery of the part and arbitrarily changing the inclination of a straight line connecting the apex of the dent and the central axis of the refrigerant inflow pipe,
By controlling the flow line of the inflow refrigerant arbitrarily, it eliminates the variation of the connection accuracy of the refrigerant inflow pipe, the effect of uneven flow of the inflow refrigerant and the effect of the attitude of the refrigerant shunt, and prevents uneven shunting or secures any shunt ratio. Can be obtained.

[Brief description of the drawings]

FIG. 1 (a) is a perspective view of a refrigerant distributor in one embodiment of the present invention (b) is a cross-sectional view taken along lines A and B in FIG. 1 (a).

FIG. 2 (a) is a perspective view of the refrigerant flow diverter, and FIG. 2 (b) is a sectional view of A in FIG. 2 (a).

FIG. 3 (a) is a perspective view of the refrigerant flow diverter, and FIG. 3 (b) is a sectional view of A in FIG. 3 (a).

FIG. 4 is a perspective view of the refrigerant flow divider.

FIG. 5 is a plan view of a conventional refrigerant flow divider.

[Explanation of symbols]

 1 Refrigerant inflow pipe 2 Refrigerant outflow pipe 3 Refrigerant inflow pipe R part 4 Refrigerant outflow pipe Collision wall part 5 Refrigerant flow diverter 6 Liquid refrigerant in the refrigerant inflow pipe

Claims (3)

[Claims] 1. A refrigerant distributor comprising a refrigerant inflow pipe having an R portion near its tip, a collision wall part for receiving a collision of a jet flow from the refrigerant inflow pipe, and a refrigerant outflow pipe including the collision wall part. 2. The refrigerant flow divider according to claim 1, wherein a recess is provided in the outer peripheral portion of the R portion near the tip. 3. A recess is provided in the outer peripheral portion of the R portion near the tip,
The refrigerant distributor according to claim 2, wherein the inclination of a straight line connecting the apex of the depression and the central axis of the refrigerant inflow pipe is arbitrarily changed.