KR101547353B1 - Distributor and refrigerant circulation system comprising the same - Google Patents

Abstract

The invention relates to a distributor. In the present invention, the refrigerant introduced from the inlet pipe flows through the inlet passage of the distributor, is transferred to the distribution passage of the distributor, flows through the distribution passage, and is evenly distributed to the plurality of outlet pipes. Therefore, according to the present invention, there is an advantage that the refrigerant introduced through the inlet pipe by the distributor is evenly distributed to the plurality of outlet pipes.

Refrigeration cycle, distributor, inlet pipe, outlet pipe

Description

Disclosed is a refrigerant circulation system including a distributor and a refrigerant circulation system comprising the same.

BACKGROUND OF THE INVENTION 1. Field of the Invention [0001] The present invention relates to a distributor, and more particularly, to a distributor and a refrigerant circulation system including the same, wherein the liquid phase and the gaseous refrigerant can be drawn out evenly.

Background Art [0002] Generally, an air conditioner is a home appliance that cools or heats a predetermined space by using a refrigeration system that utilizes characteristics of pressure and temperature of a refrigerant.

1 is a schematic view showing a general refrigeration system.

The refrigeration system includes a compressor 10 for compressing refrigerant into a gas state at a high temperature and a high pressure, a condenser 10 for condensing the refrigerant compressed in the compressor 10 into a liquid state by heat radiation by blowing the cooling fan 22, (20), a capillary tube (40) for expanding the liquid refrigerant condensed in the condenser (20) to a low-pressure liquid refrigerant by an alternating action, a condenser (20) for condensing the liquid refrigerant condensed in the condenser The low temperature low pressure refrigerant expanded in the distributor 30 and the capillary tube 40 is evaporated by the blowing of the cooling fan 52 while the cool air is supplied by using the latent heat of evaporation of the refrigerant and transmitted to the compressor 10 And a vaporizer (50) for vaporizing the gaseous refrigerant at a low temperature and a low pressure. Accordingly, the refrigeration system of the air conditioner forms a series of refrigeration cycles composed of the compressor 10, the condenser 20, the distributor 30, the capillary tube 40, and the evaporator 50, thereby cooling the room.

Meanwhile, the distributor 30 is provided with a take-in passage communicating with the capillary tube 40 and a plurality of distribution conduits communicating with the evaporator 30, and more particularly, with the plurality of tubes constituting the evaporator 30. The inlet passage and the distribution passage communicate with each other, and the liquid refrigerant introduced into the inlet passage through the capillary tube 40 is distributed to the tube of the evaporator 30 through the distribution passage.

However, according to the conventional distributor, the following problems arise.

As described above, not only the liquid refrigerant but also the gaseous refrigerant partially contains the refrigerant flowing into the inlet flow path. However, since the liquid phase refrigerant and the gaseous refrigerant have different specific gravity, the liquid refrigerant flowing into the inlet channel through the capillary tube 40 and the gaseous refrigerant can not be mixed uniformly, A gaseous refrigerant flows to a part of the liquid refrigerant and a part of the gaseous refrigerant flows to a part of the liquid refrigerant.

Disclosure of Invention Technical Problem [8] Accordingly, the present invention has been made keeping in mind the above problems occurring in the prior art, and it is an object of the present invention to provide a distributor and a refrigerant circulation system including the same, will be.

According to an aspect of the present invention, there is provided a refrigerant cycle system comprising: a refrigerant flow path; And a plurality of distribution parts for receiving the liquid phase and gaseous phase refrigerant introduced into the inlet flow path and distributing the liquid phase and the gaseous phase refrigerant to a plurality of outlet pipes; And a distributing projection for distributing the refrigerant evenly to the outlet pipe through the distributor; .

According to another aspect of the present invention, there is provided a refrigerant cycle system comprising: an inlet flow path through which a liquid phase and a gaseous refrigerant introduced from a intake pipe flow; And a plurality of distribution parts for distributing the liquid phase and the gaseous coolant drawn into the inlet flow path to a plurality of outlet pipes communicating with the downstream end of the mixing part and the upstream end, respectively; And a remaining portion downstream of the mixing portion excluding a portion communicating with the upstream end of the distribution portion protrudes in the upstream direction of the distribution passage to guide the liquid and gaseous refrigerant flowing in the distribution passage to the distribution portion .

According to another embodiment of the present invention, there is provided a refrigerant cycle system comprising: an inlet flow path through which a liquid phase and a gaseous refrigerant flow from a inlet pipe; And a plurality of distribution parts for distributing the liquid phase and the gaseous coolant drawn into the inlet flow path to a plurality of outlet pipes communicating with the downstream end of the mixing part and the upstream end, respectively; And the downstream portion of the mixing portion is reduced in flow cross-sectional area toward the distributing portion.

According to another aspect of the present invention, there is provided a dispenser comprising: a dispenser main body including a liquid flow path drawn from a drawing pipe and a drawing flow path through which gaseous refrigerant flows; And a distributor for distributing the liquid and gaseous refrigerant introduced into the inlet passage to a plurality of outlet pipes and a distributor for distributing the refrigerant evenly to the outlet pipe through the distributor, head; .

According to another embodiment of the present invention, there is provided a dispenser comprising: a dispenser main body having a draw-in passage through which liquid and gaseous refrigerant flow from a draw pipe of the present invention; And a distribution channel including a mixing section for receiving the liquid phase and gaseous coolant drawn in by the inlet flow path, and a plurality of distribution sections for distributing the downstream and downstream ends of the mixing section to a plurality of outlet pipes, respectively. And a portion of the distributor head corresponding to a remaining portion downstream of the mixing portion except for a portion communicating with the upstream end of the distributing portion is provided to guide the liquid and vapor refrigerant flowing in the distributing passage to the distributing portion And protrudes in the upstream direction of the distribution passage.

According to another aspect of the present invention, there is provided a dispenser comprising: a dispenser main body including a liquid flow path drawn from a drawing pipe and a drawing flow path through which gaseous refrigerant flows; And a distribution channel including a mixing section for receiving the liquid phase and gaseous coolant drawn in by the inlet flow path, and a plurality of distribution sections for distributing the downstream and downstream ends of the mixing section to a plurality of outlet pipes, respectively. Wherein the distributor head is formed such that the downstream portion of the mixing portion is directed toward the distributing portion and the flow cross-sectional area thereof is reduced.

According to another embodiment of the present invention, the present invention provides a refrigerant compressor comprising at least one inlet pipe through which refrigerant flows; A plurality of outflow pipes for receiving refrigerant flowing through the inlet pipe; And a distributor according to any one of claims 1 to 26 for distributing the refrigerant delivered from the inlet pipe to the outlet pipe. .

According to the present invention, there is an advantage that the refrigerant introduced through the inlet pipe by the distributor is evenly distributed to the plurality of outlet pipes.

Hereinafter, embodiments of a distributor and a refrigerant circulation system including the same according to the present invention will be described in detail with reference to the accompanying drawings.

FIG. 2 is a perspective view showing an embodiment of a distributor according to the present invention, FIG. 3 is a cross-sectional view showing an embodiment of the present invention in a disassembled state, and FIG. 4 is a sectional view showing an embodiment of the present invention.

Referring to FIG. 1, a distributor 100 according to the present invention includes a distributor body 110 and a distributor head 120. The distributor body 110 is inserted and fixed inside the distributor head 120. For example, the distributor body 110 may be fixed by bonding or welding while being inserted into the distributor head 120.

More specifically, the distributor body 110 is formed as a hollow cylindrical shape having the same overall diameter. Therefore, the inner and outer diameters of the distributor body 110 have the same overall value. In addition, a draw-in passage 111 and a mixing passage 113 are provided in the distributor body 110.

The draw-in passage 111 is provided at a central portion and a lower portion of the distributor body 110 in the drawing. A drawing pipe 10 (see Fig. 4) for conveying refrigerant expanded at a low pressure in a capillary tube (not shown) is connected to the lower end of the draw-in passage 111, that is, the upstream side. Of course, the capillary may be directly connected. The upper end, that is, the downstream side of the inlet flow path 111 is communicated with the lower end of the mixing flow path 113 in the drawing. A liquid phase and a gaseous phase refrigerant expanded in the capillary flow into the inlet flow path 111.

The mixing channel 113 is provided on the upper side of the distributor body 110, that is, on the downstream side. The flow cross-sectional area of the mixing passage 113 is relatively reduced as compared with the inlet passage 111. The downstream side of the mixing passage 113 communicates with the upstream side of the distribution passage 121 to be described later. The liquid and vapor refrigerant flowing through the inlet flow path 111 flows into the mixing flow path 113. However, the flow cross-sectional area of the mixing passage 113 is reduced compared to the inlet passage 111. Therefore, the liquid phase and the gaseous phase refrigerant flowing through the inlet flow path 111 are mixed with each other. More specifically, the liquid refrigerant has a relatively larger specific gravity than the gaseous refrigerant. Therefore, for example, when the refrigerant in the liquid phase and the vapor phase flowing into the inlet flow path 111 is not a straight line, as is the case when the refrigerant is delivered to the inlet flow path 111 through the inlet pipe 10 in a J- Liquid refrigerant mainly flows to one side of the inlet flow path 111 adjacent to the inner peripheral surface of the distributor body 110 due to the centrifugal force and the gaseous refrigerant flows through the inlet flow path 111, As shown in FIG. The liquid phase and the gaseous phase refrigerant that are partitioned from each other and flow in the inlet flow path 111 flow in the mixing flow path 113 having a relatively small flow cross sectional area as compared with the inlet flow path 111, .

Meanwhile, the flow cross-sectional area of the mixing passage 113 is reduced by the flow interfering portion 115 provided at the upper portion of the inner peripheral surface of the distributor body 110. The flow interfering portion 115 extends radially above the inner peripheral surface of the distributor body 110. The mixing channel 113 may be formed by reducing the diameter of a portion of the downstream side of the inlet channel 111 relative to the remaining portion of the inlet channel 111 by the flow interfering portion 115 have. The lower surface of the flow interfering portion 115 facing the downstream side of the inlet flow path 111, that is, the lower surface of the flow interfering portion 115 is rounded. This is because the inner circumferential surface of the distributor main body 110 and the inner circumferential surface of the flow interfering portion 111 corresponding to the downstream side of the inlet flow path 111 are in contact with each other during the transfer of the liquid and gaseous refrigerant from the inlet flow path 111 to the mixing flow path 113, To prevent a vortex phenomenon from being generated due to the edge between one surface of the substrate (115).

Further, the distributor body 110 is provided with a latching protrusion 117. The catching step 117 of the distributor body 110 is provided on the inlet flow path 111. The stopper 117 of the distributor main body 110 is a place where the end of the inlet pipe 10 connected to the inlet flow path 111 is hooked. The catching step 117 of the distributor main body 110 is formed by stepping the upstream side and the downstream side of the inlet flow path 111 substantially.

Meanwhile, the lower end of the distributor head 120, that is, the upstream side, is formed as a hollow cylindrical shape having an overall diameter, and more specifically, an inner diameter corresponding to the outer diameter of the distributor body 110. The upper end of the distributor head 120, that is, the downstream side is formed in a conical shape whose diameter is gradually increased as compared with the lower end of the distributor head 120 in the drawing. Of course, it is preferable that the upstream side and the downstream side of the distributor head 120 are integrally formed.

A distribution channel 121 is provided in the inside of the distributor head 120. The distribution channel 121 is for distributing the liquid and gaseous refrigerant mixed with each other while flowing in the mixing channel 113 to a plurality of tubes (not shown) constituting an evaporator (not shown). For this purpose, the distribution channel 121 includes a mixing unit 122 and a plurality of distribution units 123.

The lower end of the mixing section 122, that is, the upstream side, communicates with the downstream side of the mixing passage 113. The upper end, that is, the downstream side of the mixing section 122 is in communication with the lower end of the plurality of distributing sections 123, that is, the upstream end. The upstream side of the mixing portion 122 has a relatively large flow cross-sectional area as compared with the mixing flow path 113. Therefore, it is expected that the liquid and vapor refrigerant mixed in the mixing channel 113 and transferred to the mixing unit 122 are mixed again. In the present embodiment, the upstream side of the mixing portion 122 is formed to have the same flow cross-sectional area as the inlet flow path 111, but is not necessarily limited to this, and a relatively large flow cross-sectional area as compared with the mixing flow path 113 It is enough to go. Further, the downstream side of the mixing portion 122 is formed so that the flow cross-sectional area thereof is substantially reduced toward the distribution portion 123. This is to allow the refrigerant flowing in the mixing part 122 to be evenly distributed to the distribution part 123 and transferred. To this end, the downstream side of the mixing portion 122 is formed in a conical shape having a virtual plane, which is an imaginary plane through which a hypothetical straight line parallel to the flow direction of the refrigerant as a whole crosses at right angles. More specifically, the downstream side of the mixing portion 122 is formed in such a shape that an upper end portion of a cone protruding to the downstream side of the mixing portion 122 is cut so that a cross-section in a direction in which the refrigerant flows is formed in a trapezoidal shape .

As described above, the lower end of each of the distributing sections 123, that is, the upstream end thereof communicates with the downstream side of the mixing section 122. More specifically, the upstream end of the distributor 123 is spaced apart from each other by a predetermined center angle on a hypothetical arc having the same circle center on the downstream side of the mixing section 122 corresponding to the outer peripheral surface of the conical shape, do. The distribution portion 123 extends from the upstream end thereof at a downstream end thereof by a predetermined angle with respect to a direction in which the refrigerant flows. At the downstream end of the distributor 123, a discharge pipe 20 (see FIG. 4) for transferring the refrigerant to the tube is connected.

On the other hand, the distributor head 120 corresponding to the inside of the distributing channel 121 is provided with a distributing projection 125. The distribution protrusions 125 are formed in such a manner that a part of the downstream side of the mixing part 122 except the part communicating with the upstream end of the distribution part 123 protrudes in a direction opposite to the flow direction of the refrigerant. In this embodiment, the dispensing protrusions 125 are formed in a conical shape as a whole, but the shape of the dispensing protrusions 125 is not limited thereto. The distribution protrusions 125 are for uniformly distributing the refrigerant flowing through the mixing portion 122 to the distribution portion 123. That is, the refrigerant flowing in the distributor 123 flows substantially toward the distributor 123 by the distributing projection 125. The distribution projection 125 also serves to reduce the flow cross sectional area of the downstream side of the mixing section 122 communicating with the distribution section 123 toward the distribution section 123.

Further, the distributor head 120 is provided with a latching jaw 127. The catching jaw 127 of the distributor head 120 is provided on the distributing unit 123 adjacent to the downstream end of the distributing unit 123. The catching jaw 127 of the distributor head 120 is a place where the ends of the drawing pipe 20 connected to the downstream end of the distributing unit 123 are caught, respectively. The catching jaw 127 of the distributor head 120 is formed by stepping the distributor 123.

Next, the operation of the distributor and the refrigerant circulation system including the refrigerant circulation system according to the present invention will be described in detail with reference to the accompanying drawings.

5 is a cross-sectional view illustrating a process of distributing refrigerant according to an embodiment of the distributor according to the present invention.

First, the refrigerant expanded in the capillary tube is transferred to the inlet flow path 111 through the inlet pipe 10. At this time, most of the refrigerant transferred to the inlet flow path 111 is liquid (indicated by a solid line in the figure), but a part of the refrigerant is transferred to the inlet flow path 111 in a vapor phase (indicated by a dotted line in the figure). The liquid refrigerant mainly flows through the inlet flow path 111 adjacent to the inner surface of the distributor main body 110 by the difference in the specific gravity between the liquid refrigerant and the gaseous refrigerant and the gaseous refrigerant flows through the inlet flow path 111 Lt; / RTI >

On the other hand, the liquid and gaseous refrigerant flowing through the inlet flow path 111 is transferred to the mixing flow path 113. The liquid and gaseous refrigerants transferred to the mixing passage 113 are mixed with each other while flowing through the mixing passage 113, and are transferred to the distribution passage 121. However, as described above, the mixing channel 113 has a relatively smaller flow cross-sectional area than the distribution channel 121. Therefore, the liquid and gaseous refrigerant are transferred to the distribution channel 121 while being mixed with each other while flowing through the mixing channel 113.

The liquid and gaseous refrigerant transferred to the distribution passage 121 is re-mixed in the mixing portion 122 of the distribution passage 121 having a relatively large flow cross-sectional area as compared with the mixing passage 113. The liquid and gaseous refrigerant re-mixed in the mixing portion 122 is transferred to the outlet pipe 20 connected to the distribution portion 123 through the distribution portion 123 of the distribution passage 121.

At this time, the flow cross sectional area on the downstream side of the mixing portion 122 is reduced toward the distribution portion 123 by the distribution projection 125. Also, the refrigerant flowing through the mixing portion 122 is guided to the distribution portion 123 by the distributing projection 125. Therefore, the refrigerant flowing through the mixing portion 122 can be evenly distributed to the extraction pipe 20 through the distribution portion 123.

Next, the refrigerant flowing through the drawing pipe 20 is transferred to a tube of an evaporator (not shown) connected to the drawing pipe 20. The refrigerant transferred to the evaporator is circulated through a compressor (not shown), a condenser (not shown), a capillary (not shown), a distributor (not shown), and an evaporator.

It will be understood by those skilled in the art that various changes in form and details may be made therein without departing from the spirit and scope of the present invention as defined by the appended claims and their equivalents. .

In the above-described embodiment, the components forming the mixing flow path are called flow interfering portions, but the names are not limited to the flow interfering portions. That is, if the inlet direction of the refrigerant flowing into the inlet flow path can be substantially changed, another name, for example, a direction changing section, may be substantially the same component.

Further, in the above-described embodiment, one surface of the flow interfering portion facing the inlet flow path is subjected to rounding treatment, but the present invention is not limited thereto. That is, one surface of the flow interfering portion facing the inlet flow path may be orthogonal to the flow direction of the refrigerant flowing through the inlet flow path.

In the distributor and the refrigerant circulation system according to the present invention configured as described above, the refrigerant introduced through the inlet pipe is evenly distributed to the plurality of outlet pipes by the distributor. Therefore, according to the present invention, since the refrigerant evenly distributed to the outlet pipe is transferred to a plurality of tubes constituting the evaporator, for example, the efficiency of the refrigerating cycle can be substantially increased.

1 is a view showing a general refrigeration cycle.

2 is a perspective view showing an embodiment of a distributor according to the present invention.

3 is a cross-sectional view of an embodiment of the present invention.

4 is a sectional view showing an embodiment of the present invention.

5 is a sectional view showing a process of distributing refrigerant according to an embodiment of the distributor according to the present invention.

Claims (27)

The inlet flow path through which the liquid phase and the gaseous refrigerant flowing from the inlet pipe flows; And a plurality of distributing units communicating with the downstream side of the mixing unit to distribute the refrigerant mixed in the mixing unit to the plurality of drawing pipes. A distributing projection for distributing the refrigerant evenly to the outlet pipe through the distributor; And And a flow interfering portion that interferes with the flow of the liquid and gaseous refrigerant flowing in the inlet flow path in the same direction as the inlet direction from the inlet pipe, because the flow cross-sectional area of the flow interfering portion is relatively narrower than that of the inlet flow path and the distribution flow path , Wherein the flow interfering portion is formed so that a surface facing the downstream side of the inlet flow path is rounded, Wherein the inlet flow path has a flow cross-sectional area reduced toward the downstream side by the flow interfering portion, Sectional area of each of the distributing portions is formed to be narrower than the flow cross-sectional area of the downstream side of the mixing portion. The method according to claim 1, Wherein the distributor has a downstream end that is inclined by a predetermined angle with respect to a direction in which the refrigerant flows in a state where the upstream end thereof is spaced apart from each other by a predetermined center angle on a virtual arc having the same center. 3. The method of claim 2, Wherein the dispensing projection is provided at one side of the dispensing passage corresponding to the center of a virtual arc where the dispensing section is located. The method according to claim 1, Wherein the distribution projection is formed in a conical shape protruding upstream from a downstream side of the distribution passage adjacent to the distribution section. 5. The method of claim 4, Wherein the outer circumferential surface of the distributing projection is spaced apart from the outer periphery of each of the distributing portions by an equal interval. delete delete The method according to claim 1, The distribution channel includes: And a mixing portion in which the liquid phase and the gaseous refrigerant introduced into the inlet passage are transferred and the downstream side is communicated with the upstream side of the distribution portion. delete delete delete delete delete delete delete delete A distributor main body including a liquid phase drawn from the inlet pipe and a suction flow path through which the gaseous refrigerant flows; A distributor head coupled to the distributor body and having a distribution channel for distributing the liquid and gaseous coolant introduced from the distributor body to a plurality of outlet pipes; And And a distributing projection provided in the distributing passage for uniformly distributing the refrigerant flowing in the distributing passage, Wherein the distributor body is provided with a mixing flow path provided between the inlet flow path and the distribution flow path and having a relatively small cross sectional area of flow compared to the inlet flow path and the distribution flow path, The downstream side of the inlet flow path is formed to have a smaller cross sectional flow area toward the mixing flow path side and rounded, Wherein the distribution passage includes a mixing portion in which the refrigerant introduced from the inlet passage is mixed, Wherein the upstream end is connected to the downstream side of the mixing portion and the downstream end is connected to each of the outflow pipes, Sectional area of each of the distributing portions is formed to be narrower than the flow cross-sectional area of the downstream side of the mixing portion. 18. The method of claim 17, Wherein the distributing projection is formed such that a part of the distributor head on the downstream side of the distributing channel is protruded toward the upstream side of the distributing channel. 19. The method of claim 18, Wherein the distributing projection is formed in a conical shape whose vertex points toward the upstream side of the distribution passage. delete delete delete delete delete delete delete At least one inlet pipe through which the refrigerant flows; A plurality of outflow pipes for receiving refrigerant flowing through the inlet pipe; And A distributor according to any one of claims 1 to 5, 8 and 17 to 19 for distributing the refrigerant delivered from the inlet pipe to the outlet pipe; And a refrigerant circulation system.

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