JP2015068548A - Refrigerant flow diverter - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a refrigerant flow diverter for restricting outflow of gaseous phase fluid from outflow holes and flowing out a large amount of liquid phase fluid to the outflow holes.SOLUTION: There is provided a split flow chamber 31 having, at a base end thereof, an introduction passage 34 and having, at an extremity end thereof, a plurality of overflow passages 35. The split flow chamber 31 has a collision part 24 to which flowing-in refrigerant strikes. The refrigerant struck against the collision part 24 passes through a conducting passage, passes through a downstream chamber and flows out of the overflow passages 35. An anti-gaseous barrier wall 23 is installed among the collision part 24 and the overflow passages 35. The anti-gaseous barrier wall 23 restricts a gaseous phase flowing-in of the refrigerant with respect to the overflow passages 35 that are placed at the nearest position to the anti-gaseous barrier wall 23 to increase a flowing-in amount of refrigerant of liquid phase with respect to the overflow passages 35 that are placed at the nearest positions to the anti-gaseous barrier wall 23.

Description

  The present invention relates to a refrigerant flow divider used in a refrigeration cycle for refrigeration equipment and air conditioning equipment.

In the conventional refrigerant flow divider, an object is to divert the refrigerant to a predetermined diversion ratio while maintaining the uniformity of the gas phase liquid phase ratio.
For this reason, it has a collision surface that causes the refrigerant to collide when the refrigerant flows from the inlet pipe to the plurality of branch pipes, and the collision of the refrigerant with the collision surface suppresses separation of the gas phase and the liquid phase uniformly. There are proposals to ensure the sex.
For example, as shown in Patent Document 1, a hollow cylindrical inflow pipe 1 and a plurality of hollow cylindrical outflow pipes 2 and 3 branched from the inflow pipe 1 through a branching portion 4 are provided. In the refrigerant flow divider comprising the inflow opening 11 that opens to connect to the inflow pipe 1 and the outflow openings 21 and 31 that open to connect to the outflow pipes 2 and 3, The inner wall surface of the branching portion 4 facing the inflow direction is a flat collision surface 41, and the outflow openings 21, 31 are provided adjacent to the flat collision surface 41. The collision surface 41 and the outflow openings 21, 31 are provided. A refrigerant shunt has been proposed in which 42 and 43 are formed between at least one of the above.
Further, Patent Document 2 also discloses an apparatus having a collision surface that causes the refrigerant to collide when the refrigerant flows from the inflow pipe to the branch pipe.

In particular, various types of projections having guides for diversion have been proposed.
For example, Patent Document 3 discloses a distribution member in which a plurality of holes are formed, and a distribution pipe in which the inner diameter gradually increases from one side to the other side and the other side port is blocked by the distribution member. And a distribution pipe that distributes and flows out the fluid flowing in from the one-side port through the plurality of holes formed in the distribution member, and moves along the center line of the flow path formed by the distribution pipe It is possible to show a distributor with a float provided in the distribution pipe.
Further, Patent Document 4 includes an inlet pipe connected so that a refrigerant composed of two phases of gas and liquid flows from one end side and a plurality of refrigerant pipes branch to the other end side, and flows into the inlet pipe. A refrigerant distributor that distributes the liquid refrigerant to each refrigerant pipe, and in the inlet pipe, the liquid refrigerant flowing through the inlet pipe is viewed in plan view from the upstream side to the downstream side of the inlet pipe, A refrigerant distributor is shown that includes a diverter that allows the flow to be biased in a direction that intersects the direction of branching of the refrigerant pipe.

JP 2001-141333 A JP 2013-50221 A JP 2012-255584 A JP 2012-241977 A

However, each of the above-mentioned various proposals is intended to adjust the distribution amount of the refrigerant sent to each of the branched outflow paths, and ideally the gas phase and liquid phase in the refrigerant are uniform, and the specific outflow The ratio of the ratio between the liquid phase and the gas phase is adjusted so that the ratio of the liquid phase to the gas phase is sent to the passage more than the other outflow passages, or a large amount of liquid phase flows out of the gas phase toward all the outflow passages. Not trying.
That is, no device has been proposed that has been devised so that a larger amount of liquid phase flows out from the branching outflow path than the gas phase in the refrigerant.
The present invention provides a refrigerant shunt that can analyze the difference between the flow of the gas phase and the liquid phase and allow a larger amount of the liquid phase to flow out from the outflow path that requires a larger amount of the liquid phase. With the goal.

Accordingly, the present invention provides a flow dividing chamber, an introduction path for introducing a refrigerant in a mixed state of a gas phase and a liquid phase into the flow dividing chamber, and a collision portion where the refrigerant introduced from the introduction path into the flow dividing chamber collides. And a plurality of outflow passages provided around the collision portion, wherein the refrigerant colliding with the collision portion is caused to flow out from the plurality of outflow passages at a predetermined diversion ratio. An anti-gas phase barrier is provided between the collision portion and the outflow path, and the anti-gas phase barrier restricts the inflow of the gas phase to the outflow path at a position closest to the gas phase barrier, It is intended to provide a refrigerant flow divider that increases the amount of liquid phase flowing into the outflow passage at the nearest position.
Further, in the present invention, the flow dividing chamber includes an upstream side surface provided with an opening portion of the introduction path and a downstream side surface provided with an opening portion of each of the outflow paths, and the downstream side surface is formed on the upstream side surface. On the other hand, it is located on the downstream side of the flow of the refrigerant with a gap from the upstream side surface, and faces the upstream side surface, and the collision portion is located at a portion facing the opening portion of the introduction path on the downstream side surface. The gas-phase barrier is provided on the downstream side surface and protrudes toward the upstream side surface. The gas-phase barrier includes an apex portion, an inner surface facing the collision portion side, and a collision portion. And at least one of the shape, the protruding width from the downstream side, the position with respect to the opening of the introduction path, and the surface area of the anti-gas phase barrier. By adjusting the Could provide refrigerant flow divider is to adjust the amount flow of the liquid phase relative to the outlet channel.

  The present invention can increase the amount of liquid phase flowing into the outflow path by restricting the inflow of the gas phase to the outflow path that is closest to the antigas phase barrier at the antigas phase barrier. did.

(A) is a longitudinal cross-sectional view of the refrigerant flow divider according to the embodiment of the present invention, (B) is a plan view of the outflow side surface 20 of the flow dividing chamber 31 of (A), and (C) is a refrigerant flow in (B). Explanatory drawing explaining the movement of a gaseous phase and a liquid phase. (A) is a plan view of the outflow side surface 20 according to another embodiment, (B) is a plan view of the outflow side surface 20 according to still another embodiment, and (C) is a plan view of the outflow side surface 20 according to another embodiment. Plan view. (A) is a longitudinal cross-sectional view which shows the adjustment site | part of the dimension of the refrigerant | coolant flow distributor which concerns on one embodiment of this invention, (B) is a principal part top view of (A). (A) is an enlarged perspective view mainly showing an image in the flow dividing chamber 31 of the refrigerant flow divider for effect confirmation, and (B) is an enlarged perspective view showing an image in the flow dividing chamber 31 after 1 minute and 13 seconds have elapsed since (A). Figure. FIG. 4A is an enlarged perspective view showing an image in the flow dividing chamber 31 after 57 seconds from FIG. 4B, and FIG. 4B shows an image in the flow dividing chamber 31 after 1 minute 46 seconds from FIG. FIG. FIG. 5A is an enlarged perspective view showing an image in the flow dividing chamber 31 after 1 minute and 2 seconds have elapsed from FIG. 5B, and FIG. 5B shows an image in the flow dividing chamber 31 after 10 seconds have elapsed from FIG. FIG.

  Hereinafter, preferred embodiments of the present invention will be described with reference to the drawings.

(Basic configuration)
As shown in FIG. 1 (A), the refrigerant flow splitter 1 is configured so that a main body 100, a flow dividing chamber 31 provided in the main body 100, and a refrigerant in a state where a gas phase and a liquid phase are mixed are mixed in the flow dividing chamber 31. An introduction path 34 to be introduced, a collision part 24 in which the refrigerant introduced into the flow dividing chamber 31 from the introduction path 34 collides, a plurality of outflow paths 35 provided around the collision part 24, the collision part 24, and the outflow path And a gas-phase barrier 23 provided between.

(Specific configuration)
As shown in FIG. 1A, the main body 100 of the refrigerant flow divider 1 according to this embodiment is a cylindrical body in which the flow dividing chamber 31 is provided as a hollow portion.
In the main body 100, the upstream side of the refrigerant flow is the base end side, and the downstream side is the front end side. In FIG. 1A, the upper end surface of the main body 100 that is a cylindrical body is the proximal end surface 11, and the lower end surface is the distal end surface 21. That is, unless otherwise specified, the base end side (the upper side in FIG. 1A) is the upstream side of the refrigerant, and the front end side (the lower side in FIG. 1A) is the downstream side of the refrigerant.

The main body 100 can be formed by a known method. For example, two bottomed cylindrical bodies are prepared so that the bottom surface of one cylindrical body forms the base end surface 11 of the main body 100 and the bottom surface of the other cylindrical body forms the front end surface 21 of the main body 100. The main body 100 can be formed by superimposing it inside and outside and fixing it by brazing. However, the production of the main body 100 is not limited to such a method of stacking and fixing the cylindrical body, and other known methods can be employed. In this embodiment, the main body 100 exemplifies a body that is integrally formed from the beginning, rather than being fixed by stacking cylindrical bodies formed separately from each other.
In addition, the external shape of the main body 100 is not limited to a columnar shape, and can be implemented as a polygonal column shape or other shapes.
As shown below, the main body 100 has an inflow pipe 41 connected to the proximal end side and an outflow pipe 42 connected to the distal end side.

(Introduction path 34)
The main body 100 is provided with the introduction path 34. The number of the introduction paths 34 is usually one, and the base end side of the introduction path 34 opens to the end face (base end face) on the base end side of the main body 100. The distal end of one inflow pipe 41 is inserted into the proximal end side of the introduction path 34 and fixed by brazing or the like.
The leading end of the introduction path 34 shown in FIG. 1A communicates with the flow dividing chamber 31. Specifically, the leading end of the introduction portion 34 communicates with the upstream side surface 10 described later in the flow dividing chamber 31.

(Outflow channel 35)
As shown in FIG. 1A, the main body 100 has a plurality of outflow passages 35 penetrating in the axial direction between a downstream side surface 20 (to be described later) of the diversion chamber 31 of the main body 100 and the front end surface 21 of the main body 100. Is provided. In this example, four are provided every 90 degrees with respect to the central axis of the main body 100. However, three are provided every 120 degrees, and further, five, six, and eight at predetermined angles or without making the angle constant. For example, the number and arrangement thereof may be changed as appropriate. The outflow pipe 42 is inserted and fixed to the front end side of the outflow path 35.

(Diversion room 31)
The diversion chamber 31 includes the upstream side surface 10 provided with an opening portion (hereinafter referred to as an introduction port 34b) of the introduction passage 34 and the downstream side surface 20 provided with an opening portion (hereinafter referred to as an outlet 35b) of each outflow passage 35. Prepare. The downstream side surface 20 is located on the downstream side of the flow of the refrigerant at a distance from the upstream side surface 10 with respect to the upstream side surface 10 and faces the upstream side surface 10.
Specifically, the flow dividing chamber 31 is a space defined by the upstream side surface 10, the downstream side surface 20, and the inner peripheral wall surface.

(Collision part 24)
The downstream side surface 20 of the diversion chamber 31 includes the collision portion 24. The collision portion 24 is provided at a portion of the downstream side surface 20 corresponding to the introduction port 34b of the upstream side surface 10. In this example, the introduction port 34 b is provided in the center in the front-rear direction and the left-right direction in the plan view of the upstream side surface 10. The collision part 24 is a central region in the front-rear direction and the left-right direction in plan view of the downstream side surface 20 indicated by spots in FIG. 1B on the downstream side surface 20 corresponding to the introduction port 34b.
As shown in FIG. 1C, the refrigerant that has flowed in from the introduction path 34 and collided with the collision portion 24 is dispersed to the surroundings and flows out from each outflow path 35 to be divided into a plurality of flow paths. is there. As described above, the gas-liquid two-phase refrigerant collides with the collision portion 24 and is dispersed to the surroundings, so that the diversion ratio can be stabilized.
In this example, the collision portion 24 is a plane orthogonal to the inflow direction of the introduction path 34 (in this example, the axial direction) as a part of the surface of the downstream side surface 20, but can be inclined. Further, a concave portion may be formed at the center of the collision portion 24 or the like, or conversely, a convex portion may be formed to change the behavior of the collided fluid. Moreover, the shape can be variously changed to a shape suitable for the dispersion of the refrigerant, such as providing grooves radially.
As shown in FIG. 1B, the outflow passages 35b of the outflow passages 35 are provided on the downstream side surface 20 that surrounds the collision portion 24 and has a circular shape in plan view.

(Anti-gas phase barrier 23)
The anti-gas phase barrier 23 is provided between the outlet 35 b and the collision part 24 on the downstream side surface 20 of the flow dividing chamber 31.
The gas-phase barrier 23 restricts the flow of the gas phase to the outlet 35 b closest to the gas-phase barrier 23, and the liquid-phase barrier 23 to the outlet 35 b closest to the gas-phase barrier 23 This increases the flow rate. In other words, the gas-phase barrier 23 can also be referred to as a liquid phase outflow promoting portion.
In the example shown in FIG. 1, the gas-phase barrier 23 is provided between one of the plurality of outlets 35 b and the collision part 24. In other words, in the example shown in FIG. 1, only one barrier to the gas phase is provided.
The gas-phase barrier 23 is formed as a raised portion that rises toward the upstream side from the downstream side surface 20 provided with the collision portion 24. In this example, the raised width of the gas-phase barrier 23 is smaller than the width between the upstream side surface 10 and the downstream side surface 20 of the branch chamber 31, and the gas-phase barrier 23 has a gap between the upstream side surface 10 and the upstream side surface 10. Have. However, the raised width of the gas-phase barrier 23 may be equal to the width between the upstream side surface 10 and the downstream side surface 20 of the flow dividing chamber 31, and the gas-phase barrier 23 may be in contact with the upstream side surface 10.

More specifically, the gas-phase barrier 23 is provided at a position eccentric from the central axis of the cylindrical main body 100 to the outside of the diameter of the main body 100. The anti-vapor phase barrier 23 is represented by an inner side surface 23a facing the collision part 24 side, an outer side surface 23b facing the radially outer side of the main body 100, and a top part 23c. In this example, both the inner side surface 23 a and the outer side surface 23 b are substantially perpendicular to the downstream side surface 20 and extend vertically from the downstream side surface 20 toward the upstream side surface 10. Moreover, in this example, the top part 23c is a flat surface. However, the top portion 23c is not limited to a flat shape, and other shapes other than a plane such as a curved shape such as a mountain shape or a shape having unevenness can be adopted.
As shown in FIG. 1B, the inner side surface 23a is formed linearly or flatly in plan view, and the outer side surface 23b is formed in a circular arc shape in plan view. The inner surface 23a forms a string with respect to the arc of the outer peripheral surface 23b.
The outlet 35b closest to the gas-phase barrier 23 is the outlet 35b of the outlet 35 that requires a larger amount of liquid phase than the other outlets 35 (hereinafter referred to as necessary). Accordingly, it is referred to as a liquid drift outlet 35b of the liquid drift outlet 35). It can be said that the liquid uneven outflow path 35 is an outflow path 35 in which the flow of the gas phase is restricted.
The gas-phase barrier 23 faces the outer surface 23 b toward the liquid deflection outlet 35 b of the liquid uneven outflow path 35.
As shown in FIG. 1B, the liquid drift outlet 35b is the outlet 35b closest to the midpoint n1 on the arc, that is, the bisector of the arc. In addition, n2 of FIG. 1 (B) has shown the both ends of the said circular arc and a string.
If the liquid drift outlet 35b is outside the diameter of the flow dividing chamber 31 with respect to the gas-phase barrier 23 and is defined as the collision portion 24 on the outer surface 23b of the gas-phase barrier 23, the above-mentioned bisection is made. Although it is not limited to the thing in the immediate vicinity of a point, it is most effective to distribute in the immediate vicinity of the said bisection point.

In this example, the width between both ends n2 of the inner side surface 23a in plan view is the two outflow ports 35b adjacent to the liquid drift outlet 35b among the four outflow ports 35b arranged at equal intervals and forming the apex of the quadrangle. It does not exceed the distance between each other. However, as long as the width between the both ends n2 can allow the liquid phase to flow out to the liquid drift outlet 35b more than the other outlets 35b, the distance between the two liquid outlets 35b adjacent to the liquid drift outlet 35b. May be exceeded.
The above-described shape of the gas-phase barrier 23 is merely an example, and can be changed to another shape as long as a larger amount of liquid phase can be sent to the liquid drift outlet 35b than the other outlet 35b. For example, the shape of the gas-phase barrier 23 in plan view includes, in addition to the semicircle described above, a triangle, a quadrilateral and other polygons, a curvilinear shape other than an arc, and a shape in which the curvilinear shape and a polygon are combined. can do. Further, the cross-sectional shape of each position in the rising direction of the gas-phase barrier 23 is the same at each position, and a larger amount of liquid phase can be sent to the liquid drift outlet 35b than the other outlet 35b. If possible, the size and shape of the raised direction may be different. For example, it may be provided with a shape that tapers in the uplift direction or a shape in which the cross section spreads out in the uplift direction. Further, the surface area of the gas-phase barrier 23 can be adjusted by changing the size and shape of each part.

  In the case of providing a plurality of gas-phase barriers 23 unlike the example of FIG. 1, the most liquid phase flows in the vicinity of the liquid drift outlet 35 b that requires the most liquid phase inflow among the plurality of outflow passages 35 b. What is necessary is just to arrange | position the anti-gas-phase barrier 23 with the remarkable effect of enlarging the quantity of, ie, enlarging the quantity of the most inflow of a liquid phase.

In order to increase the amount of the liquid phase flowing in, it is effective to perform at least one of the following adjustments 1) to 3). Moreover, a further effect can be calculated | required by combining several adjustment of following 1) -3).
1) Increasing the protrusion width of the gas-phase barrier 23 (adjustment of the protrusion width)
2) Increasing the outer diameter of the gas-phase barrier 23 in plan view (adjustment of the cross-sectional area)
3) To narrow the distance between the upstream side surface 10 and the downstream side surface 20 of the flow dividing chamber 31 (adjustment of the distance between the upstream side surface 10 and the downstream side surface 20).
In addition to the adjustment of any one of 1) to 3) above, other than the above 1) to 3), such as increasing the length (arc length) of the arc presented by the gas-phase barrier 23 in plan view It is also effective to make adjustments incidentally.

  The refrigerant introduced into the diversion chamber 31 from the introduction port 34b and colliding with the collision part 24 is dispersed toward each outflow port 35b, but as shown in FIG. The gas phase is prevented from moving to the liquid drift outlet 35b on the opposite side of the collision part 24 across the gas phase barrier 23 by the gas phase barrier 23, and the gas phase barrier 23 is mainly not provided. Go to another outlet 35. Relatively, the refrigerant liquid phase indicated by the black arrow wraps around from the left and right sides (both sides) and the upper side (top) of the gas-phase barrier 23 to the liquid drift outlet 35b on the opposite side.

The anti-vapor phase barrier 23 can be implemented by being formed integrally with the main body 100 made of the metal.
As shown in FIG. 1, the inner diameter of the inflow pipe 41 is 3 to 9 mm, and the diameter of the arc (the inner circle y1 in FIG. 3B) of the outer surface 23b of the gas-phase barrier 23 in plan view is the inflow pipe 41. The inner diameter is preferably 50% to 150%. The inlet 34b is arranged at the center of the upstream side surface 10, and four outflow passages 35 are provided at equal intervals. The inner diameter of each outlet 35b is 2 to 6 mm, the inner diameter of the flow dividing chamber 31 is 10 to 30 mm, and the flow dividing chamber 31. It is preferable that the distance between the upstream side surface 10 and the downstream side surface 20 is 1 to 5 mm, and the raised width of the gas-phase barrier 23 is 0.3 mm or more (can also contact the upstream surface of the flow dividing chamber 31).

(Example of change)
In the embodiment shown in FIG. 1, the main body 100 is provided with one liquid outflow path 35, and the downstream side surface 20 is provided with one outflow port 35 b, that is, one liquid outflow outlet 35 b. In addition, the main body 100 can also be implemented as having a plurality of liquid outflow passages 35. For example, the main body 100 can also be implemented as having two liquid uneven outflow channels 35.
When two liquid outflow passages 35 are provided, as shown in FIGS. 2 (A), (B) and FIGS. 2 (E), (F), one gas-phase barrier 23 is provided on the downstream side surface 20, and the one pair Even if the gas phase barrier 23 corresponds to the two liquid drift outlets 35b, as shown in FIGS. 2C and 2D, two gas phase barriers 23 are provided to correspond to the two liquid drift outlets 35b. It can also be implemented.

  In the refrigerant distributor 1 shown in FIGS. 2 (A) and 2 (B), the two outflow passages 35 adjacent to each other are used as the liquid outflow passages 35, and both liquid outflow passages 35 correspond to one gas-phase barrier 23. . As shown in FIG. 2 (A), the two liquid drift outlets 35b are perpendicular to the perpendicular bisector of the inner side surface 23a of the gas-phase barrier 23 on the outer side of the outer side surface 23b having a circular arc in plan view. The gas-phase barrier 23 is formed so as to have a line-symmetrical positional relationship with respect to a virtual line). In the example shown in FIGS. 2A and 2B, the inner side surface 23a of the vapor-phase barrier 23 is substantially flat like the vapor-phase barrier 23 shown in FIGS. On the other hand, in the example shown in FIGS. 2E and 2F, the inner side surface 23a includes two planar surfaces orthogonal to each other and a concave curved surface having a circular arc shape in plan view formed at a corner formed by the two planes. It is composed of. In the embodiment shown in FIGS. 2E and 2F, other configurations not mentioned are the same as those in FIGS. 2A and 2B.

In addition, the refrigerant flow divider 1 may be provided with three liquid outflow paths 35 and the liquid outflow outlet 35b corresponding to the single gas-phase barrier 23. Furthermore, when five or more outflow passages 35 are provided, four or more of them can be implemented as the liquid uneven outflow passages 35. Further, the number of outflow paths 35 may be two or three, and one liquid outflow path 35 may be provided. When there are three outflow passages 35, there may be two liquid uneven outflow passages 35.
As described above, even when two or more liquid drift outlets 35b are provided, they may be defined by the collision portion 24 and the gas-phase barrier 23 as in the embodiment of FIG. Therefore, the arrangement is not limited to the above-described line symmetry. Accordingly, the present invention is not limited to one in which the outlets 35b, that is, the outflow passages 35 are arranged at equal intervals, and those that are not equally spaced are also included in the present invention.

In the refrigerant distributor 1 shown in FIGS. 2C and 2D, the two outflow passages 35 facing each other with the collision portion 24 interposed therebetween are the liquid outflow passages 35, and each liquid outflow passage 35 is provided with a gas-phase barrier 23. Are assigned one by one and correspond to a total of two anti-gas phase barriers 23. That is, in the refrigerant distributor 1 shown in FIGS. 2C and 2D, among the four outlets 35b, the two liquid drift outlets 35b facing each other across the collision part 24 and the collision part 24 are provided. A gas-phase barrier 23 is provided.
In each of the embodiments of FIGS. 2A to 2F, items not particularly mentioned are the same as those of the embodiment shown in FIG.

Moreover, in each embodiment shown in FIG.1 and FIG.2, the inlet 34b shall be located in the upstream side surface 10, and is located in the center of the front and back, and right and left in planar view, and the collision part 24 also faces the inlet 34b. Accordingly, the downstream side surface 20 is positioned at the front and rear and left and right centers in plan view. In addition, the introduction port 34b is arranged at a position eccentric from the center on the upstream side surface 10, and the collision portion 24 is eccentric from the center on the downstream side surface 20 and faces the introduction port 34b corresponding to the introduction port 34b. It may be arranged.
As described above, the shape and arrangement of the gas-phase barrier 23 are not limited to those shown in FIGS. 1 and 2, and a larger amount of liquid phase is generated from the liquid drift outlet 35 b than the other outlet 35 b. If it can be made to flow out, it can be changed to a shape and arrangement other than those shown in the figure.
Further, in the example shown in FIG. 1A, the base end side of the main body 100, that is, the upstream side of the refrigerant is turned up, and the front end side of the main body 100, that is, the downstream side of the refrigerant is turned down. In addition, the vertical direction of the base end side and the distal end side of the main body 100, that is, the vertical direction of the main body 100 in the axial direction may be reversed from that in FIG.
Further, the axial direction of the main body 100 is not limited to the above vertical direction, and may be horizontal or diagonal.

(Example)
Tables 1 and 2 show sample data of the refrigerant flow divider 1 whose effect has been confirmed.
The refrigerant | coolant flow divider 1 which extract | collected the data is shown to FIG. 3 (A) (B). As shown in FIG.
It is generally the same type as in FIG.
However, the main body 100 of the refrigerant flow divider 1 of the present embodiment is different from that shown in FIG. 1 in that it is formed by an outer member a and an inner member b. The outer member a is a cylindrical member whose both ends communicate with each other, and the inner member b is a member inserted into the outer member a from the front end side (lower end side) of the outer member a.
By inserting the inner member b, the inner member b can be assembled to the outer member a.

The outer surface of the base end portion of the external material a forms the base end surface 11 of the main body 100, and the inner surface of the base end portion of the outer member a forms the upstream side surface 10. The distal end side surface of the inner member b mainly forms the distal end surface 21 of the main body 100, and the proximal end side surface of the inner member b forms the downstream side surface 20.
Specifically, the inner peripheral surface of the cylindrical outer member a is composed of a proximal end side portion constituting the flow dividing chamber 31 and a distal end side portion where the inner member b is received and the outer peripheral surface of the inner member b is overlapped.
On the inner peripheral surface of the external material a, the inner diameter of the proximal end portion is smaller than the inner diameter of the distal end portion, and there is a step between the proximal end portion and the distal end portion.
When the inner member b is inserted into the outer member a as described above, the inner member b comes into contact with the step so that the inner member b can be positioned.

In each sample of Table 1 and Table 2, the outer diameter t5 of the inner member b, that is, the inner diameter of the tip side portion of the outer member a is 18 mm.
In each sample of Table 1 and Table 2, the inner diameter t1 of the flow dividing chamber 31, that is, the inner diameter of the base end side portion of the outer member a is 16 mm.
The height difference t7 in the vertical direction between the end of the inflow pipe 41 attached to the main body 100, that is, the end surface of the downstream end and the upstream side surface 10 is zero.
In each sample shown in Table 1 and Table 2, the inner diameter t3 of the inflow pipe 41 in the main body 100 of the refrigerant flow distributor 1 is 5.4 mm (FIG. 3A).

The refrigerant flow divider 1 is connected to each pipe communicating with the heat exchanger of the cooling device, and is incorporated in the refrigerant circulation system. That is, the refrigerant flow divider 1 constitutes a part of the refrigerant circulation path, and the refrigerant circulates after the heat exchange and repeatedly passes through the refrigerant flow divider 1.
In each example, a mixture of water and air was used as a pseudo refrigerant close to an actual refrigerant. The experiment was conducted with the water in the mixture as an actual refrigerant liquid phase and the air in the mixture as an actual refrigerant gas phase. Although the above mixture is different from the actual refrigerant, the tendency of the actual refrigerant behavior can be inferred from the above mixture due to the similar properties.
In the above circulation system, the refrigerant circulation rate is 150 kg / h (hours), the dryness is 0.40, the air flow rate is 50.0 L (liters) / min (minutes), and the water flow rate is 1.17 L (liters) / min (minutes). Set.

Settings common to the samples in Tables 1 and 2 in each part of the refrigerant flow divider 1 will be described.
Four outflow passages 35 of the refrigerant flow divider 1 are provided at equal intervals. In each outflow channel 35, the inner diameter t2 is 3 mm (FIG. 3).
In FIG. 3B, y1 represents a circle to which the arc of the outer surface 23b of the gas-phase barrier 23 belongs (hereinafter referred to as an inner circle as necessary), and y2 represents four flows surrounding the inner circle y2. A circle formed by the outlet 35b, that is, a circle passing through the center of each outlet 35b (hereinafter referred to as an outer circle if necessary) is shown.
In addition, about the outflow port 35b of each outflow channel 35, the 1st outflow port 35b1 arrange | positioned in the left side is made into the path | pass 1 in FIG.3 (B), and the 1st arrange | positioned clockwise from the said outflow port 35b1 is carried out to the upper side. The second outlet 35b2 is referred to as path 2, the third outlet 35b3 disposed further to the right is referred to as path 3, and the lower fourth outlet 35b4 is referred to as path 4.
In FIG. 3B, t4 indicates the maximum thickness between the inner side surface 23a and the outer side surface 23b of the gas-phase barrier 23, and x does not change even when the maximum thickness t4 is adjusted. A reference line is shown.

Each data of Table 1 and Table 2 is obtained by measuring the flow ratio of the refrigerant liquid phase to each outlet for the refrigerant flow divider 1 of the type shown in FIGS.
Each data in Table 1 and Table 2 shows that the main body 100 is arranged so that the refrigerant distributor 1 in FIG. 3 (A) is vertically moved so that the introduction path 34 is located above the outflow path 35 as shown in FIG. 3 (A). It is data of what is arranged in.

  Each data in Table 1 and Table 2 shows that the path 2 is the liquid drift outlet 35b, the diameter of the inner circle y1 is 6 mm, the diameter of the outer circle y2 is 11 mm, and the maximum thickness t4 of the gas-phase barrier 23 is 1.5 mm. (Fig. 3).

Each data in Table 1 is obtained by setting the interval t6 between the upstream side surface 10 and the downstream side surface 20 of the flow dividing chamber 31 to 2.0 mm.
Regarding the above-described raised width t8 of the gas-phase barrier 23 in the data of Table 1, No. 206c is 1.5 mm, no. 214 is 1.2 mm. 215 is 0.9 mm. 216 was obtained as 0.6 mm (FIG. 3).

Each data in Table 2 is obtained by setting the raised width t8 of the gas-phase barrier 23 to 1.5 mm.
With respect to the distance t6 between the upstream side surface 10 and the downstream side surface 20 in the data of Table 2, no. 206, 2 mm, no. No. 207 is 2.5 mm, no. 208, 3 mm, no. No. 209 is 3.5 mm, no. In 210, it was set to 4 mm.
In Table 1, No. 206c and No. 2 in Table 2. 206 is the same setting for the dimensions of each part.

(Evaluation)
From the data of each sample in Table 1 and Table 2, it can be seen that a larger amount of liquid phase flows in the path 2 which is the liquid drift outlet 35b than in the other paths.

  Specifically, from Table 1, the maximum thickness t4 of the gas-phase barrier 23 is set to 1.5 mm, the height difference t7 between the tip of the inflow pipe 41 and the upstream side surface 10 is set to 0, and the upstream side surface 10 and the downstream side surface 20 When the interval t6 between the gas phase barrier 23 and the gap t6 is set to 2, the height t8 of the gas-phase barrier 23 is set to 0.6 mm to 1.5 mm, so that the liquid phase to the target liquid drift outlet 35b (pass 2) It turns out that guidance can be performed effectively.

  In Table 2, when the maximum thickness t4 of the gas-phase barrier 23 is 1.5 mm and the raised width t8 of the gas-phase barrier 23 is 1.5 mm, the tip of the inflow pipe 41 and the upstream side surface 10 By setting the height difference t7 to 0 and the distance t6 between the upstream side surface 10 and the downstream side surface 20 to 2 to 4 mm, the liquid phase can be effectively guided to one target liquid drift outlet 35b (pass 2). I understand that.

(Effect confirmation by visual recognition)
As shown in FIGS. 4 to 6, the state of the downstream side surface 20 of the flow dividing chamber 31 in the refrigerant flow divider 1 in which the outer member a of the main body 100 is formed of a transparent plastic is shown. 4 to 6 are sample Nos. It was obtained by photographing the same size as 206c. 4 to 6, the second outlet 35b2 (pass 2) is the liquid drift outlet 35b. A gas-phase barrier 23 is provided between the second outlet 35 b 2 and the collision part 24.
4A, FIG. 4B, FIG. 5A, FIG. 5B, FIG. 6A, and FIG. The portion that appears white in each figure is the gas phase. In each figure of FIGS. 4-6, the 1st outflow port 35b1 (bus 1) is in the position which is hidden and cannot be seen.
4 to 6, it can be seen that the movement of the white portion indicating the gas phase to the second outlet 35b2 is very small, and the movement of the liquid phase to the second outlet 35b2 is more than the others. For example, it can be seen that the third outlet 35b3 on the near side is always covered with the white portion, and a large amount of the gas phase flows and the liquid phase hardly flows.

DESCRIPTION OF SYMBOLS 10 Downstream side 20 Upstream side 23 Anti-gas phase barrier 24 Collision part 31 Dividing chamber 34 Introductory path 34b Inlet 35 Outlet 35b Outlet 41 Inflow pipe 42 Outflow pipe 100 Main body

Claims (2)

A shunt chamber, an introduction path for introducing a refrigerant in a mixed state of a gas phase and a liquid phase into the shunt chamber, a collision section where the refrigerant introduced from the introduction path into the shunt chamber collides, and the collision section And a plurality of outflow paths provided around the refrigerant flow distributor, wherein the refrigerant colliding with the collision portion is caused to flow out from the plurality of outflow paths at a predetermined diversion ratio.
A gas-phase barrier is provided between the collision portion and the outflow path,
The gas-phase barrier increases the amount of liquid-phase flowing into the outflow path at the nearest position by restricting the flow of the gas phase into the outflow path at the position closest to the gas-phase barrier. A refrigerant shunt, characterized in that The diversion chamber includes an upstream side surface provided with an opening of the introduction path, and a downstream side surface provided with an opening of each of the outflow paths,
The downstream side surface is located on the downstream side of the flow of the refrigerant at a distance from the upstream side surface with respect to the upstream side surface, and faces the upstream side surface,
In the downstream side surface, the collision portion is provided at a portion facing the opening of the introduction path,
The gas-phase barrier is provided on the downstream side surface and protrudes toward the upstream side surface,
The anti-vapor phase barrier is formed by a top portion, an inner surface facing the collision portion side, and an outer surface facing the opposite side of the collision portion,
By adjusting at least one of the shape, the protruding width from the downstream side, the position with respect to the opening of the introduction path, and the surface area, the liquid phase with respect to the outflow path at the nearest position is adjusted. The refrigerant shunt according to claim 1, wherein the flow amount of the refrigerant is adjusted.