JP2010203747A - Flow divider - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a flow divider ensuring a brazing edge and having stable quality. <P>SOLUTION: This substantially columnar flow divider includes: an inflow pipe provided on an inflow side; a plurality of outflow pipes provided on an outflow side; and a distribution part formed inside. Fluid led to flow into from the inflow pipe is led to flow out from the plurality of outflow pipes through the distribution part, and the longitudinal center shaft of the flow divider and the center shaft of the distribution part longitudinally formed inside of the flow divider do not match. Since a thick wall and a thin wall are formed without uniforming the thickness of the flow divider, the thick wall is formed in a direction with the outflow pipes joined. <P>COPYRIGHT: (C)2010,JPO&INPIT

Description

  The present invention relates to a shunt connected with a lead pipe.

  As shown in FIG. 4, the conventional distributor has a distributor 102, an inflow pipe 103 into which a fluid flows, and a plurality of outflow pipes 104 inside the flow distributor main body 101. A plurality of outflow pipes 104 are provided on the side wall of the flow divider main body 101 (see, for example, Patent Document 1).

At this time, when connecting the outflow pipe 104 to the shunt main body 101, the connecting portion between the outflow pipe 104 and the shunt main body 101 is welded to join the shunt main body 101 and the outflow pipe 104.
Japanese Patent Laid-Open No. 63-220054

  In the above-described conventional configuration, since the distributor 102 is provided in the shunt body 101 at a position where the center line of the shunt body 101 and the center line of the distributor 102 coincide with each other, the shunt body 101 is configured. The thickness of the side wall is almost uniform regardless of the position. Therefore, no matter where the outflow pipe 104 is provided, the thickness from the outer wall of the flow divider main body 101 to the inner wall of the flow divider main body 101 forming the distribution portion 102 does not change.

  However, when the outflow pipe 104 is welded to the shunt body 101 with the brazing material, the thickness from the outer wall of the shunt body 101 to the inner wall of the shunt body 101 may be short. Until then, the brazing material melts and penetrates, and the performance of the shunt is deteriorated.

  The present invention solves the above-described conventional problems, and an object thereof is to provide a shunt having a stable quality.

  In order to solve the above problems, the flow divider of the present invention is a substantially cylindrical flow divider having an inflow pipe on the inflow side, a plurality of outflow pipes on the outflow side, and a distribution portion formed therein, The fluid flowing in from the inflow pipe flows out of the plurality of outflow pipes through the distribution section, and the vertical center axis of the flow divider and the distribution section formed in the vertical direction inside the flow divider The central axes do not coincide with each other, and a thick wall and a thin wall can be formed without making the thickness of the flow divider uniform. By doing so, a brazing allowance can be secured and a shunt having a stable quality can be provided.

  According to the present invention, it is possible to provide a shunt having a stable quality.

A flow divider according to a first aspect of the present invention is a substantially cylindrical flow divider having an inflow pipe on the inflow side, a plurality of outflow pipes on the outflow side, and a distribution portion formed therein. The fluid that has flowed out of the plurality of outflow pipes through the distributor, and the central axis in the longitudinal direction of the flow divider does not coincide with the central axis of the distributor formed in the vertical direction inside the flow distributor Since the thick wall and the thin wall can be formed without making the thickness of the flow divider uniform, the thick wall is set in the direction in which the outflow pipe is joined. An allowance can be secured and a shunt having a stable quality can be provided. Moreover, since the insertion allowance of the outflow pipe can be secured sufficiently, it is possible to prevent disconnection and cracking from the flow divider.

  In the shunt of the second invention, particularly in the first invention, an insertion port for inserting the inflow pipe is provided on an extension line of the central axis of the distribution part, and the inner diameter of the insertion port is made larger than the inner diameter of the distribution part. By increasing the outer diameter of the inflow pipe to be larger than the inner diameter of the distribution section, the inlet section of the distribution section becomes a stopper when the inflow pipe is inserted into the insertion port, improving workability and eventually production. Can be improved.

  According to a third aspect of the present invention, in the first or second aspect of the invention, the plurality of outflow pipes are provided so as to extend in a direction substantially perpendicular to the longitudinal central axis of the distributor, and the plurality of outflow pipes are provided. When the outflow pipe is inserted into the flow divider, the bead provided on the outer periphery of the outflow pipe serves as a stopper, and the insertion allowance of the outflow pipe can be adjusted. It is possible to prevent clogging inside by inserting too much. In addition, when the outflow pipe is brazed, the amount of brazing between the outflow pipes can be reduced as compared with the case where no bead is applied, and it is possible to guide to the flow divider to improve brazing performance. .

(Embodiment 1)
FIG. 1 is an external perspective view of the shunt of the first embodiment, and FIG. 2 is a cross-sectional view of the shunt of the first embodiment.

  1 and 2, the flow divider of the present invention includes a substantially cylindrical flow divider main body 1, an inflow pipe 2 for allowing a fluid to flow in, and a plurality of outflow pipes 3. 1 is provided with a distribution unit 9.

  The shunt main body 1 and the distributor 9 have a substantially cylindrical shape that is long in the vertical direction, and the center axis 7 of the shunt main body 1 and the center axis 8 of the distributor 9 are misaligned, so A distribution unit 9 is formed. Further, an insertion port 5 into which the inflow pipe 2 is inserted is provided on an extension line of the central shaft 8 of the distribution unit 9.

  The diameter of the insertion port 5 is formed longer than the diameter of the distribution part 9, and the outer diameter of the inflow pipe 2 is larger than the diameter of the distribution part 9 and smaller than or equal to the diameter of the insertion port 5. Has been. By forming in this way, when the inflow pipe 2 is inserted into the insertion port 5, the end of the inflow pipe 2 is positioned against the distribution portion 9, so that it is not inserted too much and the assembly work efficiency is improved. Can do.

  A plurality of branch paths 6 for inserting the outflow pipe 3 are provided on the side wall of the flow divider body 1. The outflow pipe 3 is provided with a bead. When the outflow pipe 3 is inserted into the branch path 6, the bead serves as a stopper, and the outflow pipe 3 is positioned.

  Next, the effect of the shunt configured as described above will be described.

  First, the inflow pipe 2 is inserted into the insertion port 5, and then brazed between the inflow tube 2 and the insertion port 5, joined to the inflow pipe 2 to the shunt body 1, and the fluid that flows in from the inflow pipe 2 flows. It flows into the distribution unit 9. After the outflow pipe 3 is inserted into the branch path 6, the outflow pipe 3 and the branch path 6 are brazed, and a plurality of outflow pipes 3 are joined to the flow divider main body 1, so that a plurality of fluids flowing into the distributor 9 can be obtained. Fluid flows out from the outflow pipe 3 of the pipe.

At this time, since the distributor 9 is provided with the central axis shifted in the shunt body, the shunt body 1 has a thick wall portion and a thin wall portion. By forming the branch path 6 in the thick part, when brazing between the outflow pipe 3 and the branch path 6, the thickness of the flow distributor main body 1 becomes a brazing allowance, which can be secured sufficiently. At the same time, it is possible to prevent the wax from flowing into the distribution unit 9 and prevent the wax from being clogged, and to stabilize the quality.

  Furthermore, by arranging the plurality of outflow pipes 3 equally, it is possible to improve the insertability and to stabilize the brazing operation.

  In the shunt of the present invention, the plurality of branch paths 6 are configured with the same pitch dimension. Therefore, when the shunt and the outflow pipe 3 are joined and brazed, it is possible to prevent the pitch between the outflow pipes 3 from becoming narrow and prevent the wax from reaching the entire circumference, thereby enabling stable work. .

  1 and FIG. 2 have been described by taking as an example a flow divider in which the inflow pipe 2 and the outflow pipe 3 are connected in different directions. However, the present invention is not limited to this, and as shown in FIG. You may comprise so that the pipe | tube 3 may be connected to the same direction. In that case, not only can the insertion allowance of the outflow pipe 3 be secured sufficiently, but also the equivalent insertion allowance can be ensured for the insertion of the inflow pipe 2, and quality stabilization can be realized.

  Further, the portion where the inflow pipe 2 is not inserted is used as a lid insertion port 11 so that the inflow pipe 2 and the outflow pipe 3 can share the configuration of the flow divider body 1 in the same direction or in different directions. Just fit them together.

  As described above, the center axis of the substantially cylindrical flow divider is translated in an arbitrary direction, and the distance of movement is secured as the insertion allowance for the outflow pipe 3 and the brazing allowance, thereby stabilizing the quality and compact. It becomes a shunt that can bring out high performance.

  Further, the shunt of the present invention is formed by connecting the inflow pipe 2 and the outflow pipe 3 in the same direction, so that not only the outflow pipe 3 but also the inflow pipe 2 is inserted into the shunt and the brazing cost. Is sufficiently secured, it is possible to prevent the lead pipe from coming off from the shunt and cracking.

  Further, in the shunt of the present invention, all the outflow pipes 3 provided in each of the branch paths 6 have the same shape. Therefore, since it is the same part, cost can be reduced.

  The present invention can be applied to a device having a built-in refrigerant pipe of a water heat exchanger such as a water heater.

1 is a schematic perspective view of a shunt according to Embodiment 1 of the present invention. Sectional drawing of the shunt according to Embodiment 1 of the present invention Sectional drawing of the shunt according to Embodiment 1 of the present invention Cross section of conventional shunt

DESCRIPTION OF SYMBOLS 1 Divider body 2 Inflow pipe 3 Outflow pipe 4 Bead 5 Insertion port 6 Branch path 7 Divider center axis 8 Distribution part center axis 9 Distribution part 10 Lid 11 Lid insertion hole

Claims (3)

An approximately cylindrical flow divider having an inflow pipe on the inflow side, a plurality of outflow pipes on the outflow side, and a distribution part formed therein, and the fluid flowing in from the inflow pipe passes through the distribution part. The flow divider flows out of the plurality of outflow pipes, and the central axis in the vertical direction of the flow divider does not coincide with the central axis of the distribution portion formed in the vertical direction inside the flow divider. An insertion port for inserting the inflow pipe is provided on an extension line of the central axis of the distribution portion, the inner diameter of the insertion port is made larger than the inner diameter of the distribution portion, and the outer diameter of the inflow tube is made larger than the inner diameter of the distribution portion. The shunt according to claim 1, wherein the shunt is also made larger. 3. The branch flow according to claim 1, wherein the plurality of outflow pipes are provided so as to extend in a direction substantially perpendicular to the longitudinal central axis of the distribution portion, and beads are formed in the plurality of outflow pipes. vessel.