KR101645767B1 - Distributor assembly - Google Patents

Abstract

The present invention relates to a refrigerant pipe in which a refrigerant flows, a distributor connected to a refrigerant pipe for distributing the refrigerant through a plurality of paths, a plurality of capillaries connected to the distributor and through which the refrigerant distributed in the distributor flows, Wherein the regulating device includes an axial pipe portion that is smaller than a cross sectional area of the refrigerant pipe and an expansion portion that extends toward the distributor from the axial pipe portion and gradually increases in cross sectional area of the refrigerant pipe, To the distributor assembly.
The refrigerant can be uniformly introduced into each of the plurality of capillaries in both the heating operation and the cooling operation of the refrigerant system through the present invention.

Description

Distributor assembly {Distributor assembly}

The present invention relates to a distributor assembly, and more particularly, to a dispenser assembly including a regulating device to solve a problem that a liquid refrigerant passing through a curved portion of a refrigerant pipe communicated with a distributor is not uniformly introduced into a large number of capillaries due to centrifugal force, .

In particular, when the refrigerant system including the distributor is heated, the length of each capillary is calculated such that the amount of the refrigerant flowing through each capillary is the same, and during the cooling operation, To a distributor assembly that regulates the amount of refrigerant flowing into the pillell.

Generally, the refrigerant system is a device that performs a refrigerant cycle consisting of compression-condensation-expansion-evaporation to cool and heat the room or to store food.

The refrigerant system includes a compressor for compressing a refrigerant, an indoor heat exchanger for exchanging heat between the refrigerant and the room air, an expansion unit for expanding the refrigerant, and an outdoor heat exchanger for exchanging heat between the refrigerant and outdoor air. A four-way valve for switching the flow direction of the refrigerant for performing the refrigerant cycle; a fan for forcedly flowing indoor air or outdoor air toward the indoor heat exchanger or the outdoor heat exchanger; As shown in FIG.

The expansion unit may be a plurality of capillaries. In this case, a distributor for distributing the refrigerant to the plurality of capillaries may be further included.

The distributor 3 is connected to the refrigerant pipe 1 as shown in Fig.

The curved portion 2 is essentially formed in the refrigerant pipe 1 due to the characteristics of the refrigerant pipe 1 to be installed in a limited space of the outdoor unit or the indoor unit.

When the refrigerant system is in the cooling operation mode, the liquid phase and the gaseous phase refrigerant are mixed and flow in the curved portion 2. Since the liquid phase refrigerant whose mass is relatively larger than the gaseous phase refrigerant is deviated toward the outside of the refrigerant pipe 1 by centrifugal force Occurs.

Accordingly, there is a problem that the refrigerant can not be uniformly distributed to the plurality of capillaries connected to the distributor 3.

Referring to FIG. 1B, when the refrigerant system is in the heating operation, the temperature at the outlet side of the eleventh capillary inlet is the highest. However, the capillary entrance number, which is the x-axis in Fig. 1B, is referred to Fig.

The eleventh capillary inlet is the innermost capillary inlet in the distributor 3 and the outlet temperature of the eleventh capillary inlet is the highest because when the refrigerant system is in the heating operation, It is because it has flowed into the eleventh capillary.

Therefore, to solve this problem, the eleventh capillary can be made longer than the other capillary. As a result, the refrigerant flowing through the eleventh capillary receives more resistance than the refrigerant flowing through the other capillary, resulting in a reduction in the amount of refrigerant flowing into the eleventh capillary.

Referring to FIG. 1B, when the refrigerant system is in the cooling operation, the temperature at the outlet side of the fourth capillary inlet is the lowest. The fourth capillary inlet is the capillary inlet located at the outermost position in the distributor 3 and the reason why the outlet temperature of the fourth capillary inlet is the lowest is that when the refrigerant system is in the cooling operation, Because it has flowed into the fourth capillary.

However, when the length of the eleventh capillary is made longer than other capillaries, the amount of the refrigerant flowing into the eleventh capillary is small and the amount of the refrigerant flowing into the fourth capillary is large even when the refrigerant system is in the cooling operation It becomes a problem.

SUMMARY OF THE INVENTION It is an object of the present invention to solve the above-mentioned problems of the prior art, and it is an object of the present invention to provide a method and apparatus for controlling the flow rate of a refrigerant, To provide a distributor assembly in which the flow rate of the refrigerant can be uniformly introduced into each capillary.

In order to solve the above problems, the present invention provides a refrigerant pipe in which refrigerant flows; A distributor connected to the refrigerant pipe for distributing the refrigerant through a plurality of paths; A plurality of capillaries connected to the distributor and through which the refrigerant distributed in the distributor flows; And a regulating device provided in the refrigerant pipe for changing a flow cross-sectional area of the refrigerant, wherein the regulating device comprises: an axial pipe portion that is smaller than a cross-sectional area of the refrigerant pipe; And an expansion portion extending from the shaft portion toward the distributor and gradually increasing the cross-sectional area thereof.

Preferably, the refrigerant pipe includes a curved portion that changes the flow direction of the refrigerant.

In addition, it is preferable that the regulating device is located between the curved portion and the distributor.

Preferably, the distributor includes a plurality of distribution channels, and the control device controls the amount of the refrigerant flowing into the distribution channel located at one side of the plurality of distribution channels and the distribution channel located at the other side.

The axial tube portion may include a first axial tube portion positioned on the outer side of the axial tube portion and a second axial tube portion positioned on the inner side of the axial tube portion, the expanded portion including a first expanding portion located outside the expanded portion, And a second bending portion located inside the bending portion, and the first bending portion and the second bending portion have the same curvature.

Preferably, the shaft portion and the expansion portion are symmetrical with respect to a virtual center line.

In addition, it is preferable that the first axial pipe portion guides the refrigerant passing through the curved portion to the second expansion portion.

In addition, it is preferable that the refrigerant guided to the second expansion portion flows into the distribution channel located inside the distribution channel located outside the plurality of distribution channels of the distributor.

In order to solve the above problems, the present invention provides a refrigerant pipe in which refrigerant flows; A distributor connected to the refrigerant pipe for distributing the refrigerant through a plurality of paths; A plurality of capillaries connected to the distributor and through which the refrigerant distributed in the distributor flows; And a regulating device provided in the refrigerant pipe for changing a flow cross-sectional area of the refrigerant, wherein the regulating device comprises: an axial pipe portion that is smaller than a cross-sectional area of the refrigerant pipe; And a copper tube portion extending from the shaft portion and having the same cross-sectional area; And an expansion portion extending from the copper pipe portion toward the distributor and gradually increasing the cross-sectional area thereof.

Preferably, the refrigerant pipe includes a first bend portion that changes the flow direction of the refrigerant.

The length of the copper tube portion is preferably 150 mm to 250 mm.

Preferably, the copper tube portion includes a second bend portion corresponding to the first bend portion of the refrigerant pipe, and the second bend portion is provided on the first bend portion.

As described above, according to the present invention, the refrigerant can be uniformly introduced into each of the plurality of capillaries in both the heating operation and the cooling operation of the refrigerant system.

As a result, the heating performance is improved by improving the condensing performance in the heating operation, and the cooling performance is improved by improving the evaporation performance in the cooling operation.

1A is a side view illustrating a conventional distributor assembly.
1b is a graph measuring and illustrating the outlet temperature of each of a plurality of capillary inlets in a refrigerant system including a conventional distributor assembly.
2 is a configuration diagram illustrating a refrigerant system including a distributor assembly in accordance with an example of the present invention.
3 is a side view illustrating a distributor assembly in accordance with an example of the present invention.
4 is a cross-sectional view of a distributor of a distributor assembly in accordance with an example of the present invention.
5 is a top view illustrating a distributor assembly in accordance with an example of the present invention.
6 is a cross-sectional view showing a regulating device of the distributor assembly according to the first embodiment of the present invention. 6 is a cross-sectional view taken along line I-I 'of Fig. 3, but it should be noted that a refrigerant pipe is not shown.
7 is a cross-sectional view showing a regulating device of a distributor assembly according to a second embodiment of the present invention.
8 is a cross-sectional view showing a regulating device of a distributor assembly according to a third embodiment of the present invention.
9 is a top view and a side view showing a distributor assembly according to a fourth embodiment of the present invention.

Quot; inside "is defined as the direction of the center of curvature of the curved portion of the refrigerant pipe and" outside "is defined as the opposite direction of the" inside "

Quot; top "as used below defines the direction toward the distributor in the relative position of the refrigerant pipe and distributor. In addition, "lower" used below is defined as the direction opposite to the above "upper ".

Hereinafter, a configuration of a refrigerant system including a distributor assembly according to an exemplary embodiment of the present invention will be described with reference to FIG.

A refrigerant system including a distributor assembly according to an example of the present invention may include a compressor 10, a condenser 20, a distributor 200, a capillary 300, and an evaporator 30.

The compressor (10) serves to compress the refrigerant into a gas state at a high temperature and a high pressure.

The condenser 20 may include a blowing fan 21 and condenses the gaseous refrigerant of high temperature and high pressure discharged from the compressor 10 into low temperature and high pressure liquid refrigerant by heat radiation by the blowing of the blowing fan 21.

The distributor 200 serves to uniformly distribute the condensed liquid refrigerant in the condenser 20 to the capillary 300 to be described later.

The capillary 300 expands the liquid refrigerant uniformly distributed through the distributor 200 to the low-temperature and low-pressure liquid refrigerant by the throttling action.

The evaporator 30 may include a blowing fan 31. The evaporator 30 evaporates the low-temperature and low-pressure liquid refrigerant expanded in the capillary 300 by blowing air from the blowing fan 31, And at the same time serves to vaporize the gaseous refrigerant at a high temperature and low pressure delivered to the compressor 10.

Accordingly, the refrigerant system forms a series of cycles consisting of the compressor 10, the condenser 20, the distributor 200, the capillary 300 and the evaporator 30 to cool the room.

The heating operation of the refrigerant system is as follows.

The refrigerant compressed in the compressor 10 in a gaseous state at a high temperature and a high pressure is condensed in the liquid state by the blowing of the blowing fan 31 in the evaporator 30. That is, the evaporator 30 is used as a condenser in heating operation. The condensed refrigerant is expanded to a low-pressure liquid-phase refrigerant through an expansion part (not shown), and the expanded refrigerant is evaporated into a high-temperature and low-pressure gaseous refrigerant by the blowing of the blowing fan 21 in the condenser 20. That is, the condenser 20 is used as an evaporator in heating operation. The evaporated refrigerant is returned to the compressor 10 so that the refrigerant system forms a series of cycles of compression-condensation-expansion-evaporation to heat the room.

Hereinafter, the structure of the distributor assembly according to the present invention and the flow of refrigerant in the distributor assembly will be described in detail with reference to the drawings.

However, the refrigerant piping 100, the distributor 200, and the capillary 300 will be described first with a configuration common to all of the embodiments.

The distributor assembly according to the present invention may include a refrigerant pipe 100, a distributor 200, a capillary 300, and a regulating device 400 as shown in FIG.

The refrigerant pipe 100 connects the condenser 20 and the distributor 200 as shown in FIG. The condenser 20 is used as the condenser 20 in the cooling operation of the refrigerant system, but it can be used as the evaporator in the heating operation.

When the refrigerant system performs the cooling operation, the low-temperature, high-pressure two-phase refrigerant condensed in the condenser flows into the distributor 200 through the refrigerant pipe 100.

The refrigerant pipe 100 is essentially formed with the curved portion 110 as shown in Fig. 3 due to the characteristics of the refrigerant pipe 100 to be installed in a limited space of the outdoor unit or the indoor unit.

In this case, when the two-phase refrigerant condensed in the condenser 20 flows in the curved portion 110, since the liquid refrigerant is larger in mass than the gaseous refrigerant, it receives a large amount of centrifugal force. The liquid refrigerant flows to the outside of the refrigerant pipe 100 through the curved portion 110.

The dispenser 200 may include a dispenser head 210, a refrigerant inlet 220, a dispensing duct 230, and a capillary inlet 240, as shown in FIG.

The dispenser head 210 forms the exterior of the dispenser 200.

The refrigerant pipe inlet 220 is a hole through which the refrigerant pipe 100 is drawn. The refrigerant pipe 100 is drawn into the refrigerant pipe inlet 220 so that the refrigerant pipe 100 and the distributor 200 can communicate with each other. 4, the refrigerant inlet 220 may be a cylindrical hollow located below the distributor head 210, but is not limited thereto and may be any shape in which the refrigerant inlet 100 can be drawn It is possible.

The distribution channel 230 serves to distribute the refrigerant flowing from the refrigerant pipe 100 to the distributor 200. That is, it serves to branch the flowing refrigerant. The distribution channel 230 is connected to the capillary inlet 240, which will be described later, and is thus formed in the same number as the capillary inlet 240. 4, the distribution channel 230 may be a cylindrical hollow having a diameter smaller than that of the refrigerant pipe inlet 220. However, the present invention is not limited to this, Any form that can be made is possible.

The capillary inlet 240 is a hole into which the capillary 300 is introduced. The capillary 300, which is drawn into the capillary inlet 240, communicates with the distributor 200. In more detail, it communicates with the distribution passage 230. With this structure, the refrigerant introduced from the refrigerant pipe 100 can flow into the capillary 300 through the distribution channel 230. 4, the capillary inlet 240 may be a cylindrical hollow having a diameter larger than that of the distribution channel 230. However, the capillary inlet 240 is not limited thereto and may be any shape in which the capillary 300 can be drawn It is also possible.

The view from above of the dispenser 200 is shown in Fig. As an example, eleven capillary inlets 240 are shown, but are not limited thereto. The eleven capillary inlets 240 may include, for example, a first capillary inlet 240a, a second capillary inlet 240b, a third capillary inlet 240c, a fourth capillary inlet 240a, The fourth capillary inlet 240d, the fifth capillary inlet 240e, the sixth capillary inlet 240f, the seventh capillary inlet 240g, the eighth capillary inlet 240h, A tenth capillary inlet 240i, an eleventh capillary inlet 240j, and an eleventh capillary inlet 240k.

In this case, the number of the distribution channels 230 is also eleven. Accordingly, the refrigerant introduced through the refrigerant pipe 100 flows into each of the eleven distribution channels 230 and flows through each of the eleven capillary inlets 240 And flows into each of eleven capillaries 300.

The capillary 300 may also be referred to as a capillary and serves to inflate the liquid refrigerant evenly distributed through the distributor 200 to a low pressure liquid refrigerant by an alternating action. That is, it functions as an expansion part in the refrigerant cycle. The refrigerant expanded in the capillary 300 flows into the evaporator 30 and circulates the refrigerant cycle.

The capillary 300 is made such that the outlet temperatures of the plurality of capillary inlets 240 coincide with each other during the heating operation of the refrigerant system, that is, the length of the refrigerant flows so that the same amount of refrigerant flows. Therefore, as shown in FIG. 1B, the length of the eleventh capillary can be designed to be long in order to solve the problem that the temperature at the outlet side of the eleventh capillary inlet 240k is high. Accordingly, each of the plurality of capillaries 300 can be designed to have different lengths.

As shown in FIG. 3, the adjusting device 400 is provided in the refrigerant pipe 100 to change the flow cross-sectional area of the refrigerant flowing through the refrigerant pipe 100. The amount of the refrigerant flowing into each of the plurality of distribution channels 230 can be adjusted as needed through the change of the flow cross-sectional area.

In the following, the control device 400 is divided into four embodiments and is reviewed in detail.

1st Example

A first embodiment of the regulator 400 is shown in Fig. As an example, the central portion of the hollow cylinder is depressed. Further, the upper and lower portions may be symmetrical about the virtual center line l.

The adjusting device 400 according to the first embodiment may include an axial tube portion 410 and an expanding portion 430.

The shaft portion 410 extends from the lower portion to the upper portion and has a reduced cross-sectional area. Is preferably smaller than the cross sectional area of the refrigerant pipe (100). Thus, the refrigerant pipe 100 is provided with a refrigerant pipe 100, which reduces the flow cross-sectional area of the refrigerant flowing through the refrigerant pipe 100.

The length d of the shaft or bulge portion shown in FIG. 6 and the inclined angle? With respect to the vertical line of the shaft portion or the bulged portion are design factors of the adjusting device 400, It is possible to produce.

As d becomes longer, the larger the &thetas; becomes, the more the depression formed at the central portion of the hollow cylinder becomes more depressed.

The axial pipe portion 410 may include a first axial pipe portion 411 and a second axial pipe portion 412.

The first axial pipe portion 411 is located on the outer side of the axial pipe portion 410 and is as shown in Fig.

The second axial tubular portion 412 is a portion facing the first axial tubular portion 411 and is located on the inner side of the axial tubular portion 410.

It is preferable that the first axial pipe portion 411 and the second axial pipe portion 412 have the same curvature. In this case, when the refrigerant pipe 100 is mounted on the refrigerant pipe 100, it can be easily mounted without considering the direction.

The tube portion 430 extends upward from the shaft portion 410 and gradually increases in cross-sectional area. Referring to FIG. 6, the expansion portion 430 may be symmetrical with the axial portion 410 about the imaginary center line 1.

Like the axial pipe portion 410, the expanding portion 430 may include a first expanding portion 431 and a second expanding portion 432.

The first expanded portion 431 is located on the outer side of the expanded portion 430, as shown in FIG.

The second expanded portion 432 faces the first expanded portion 431 and is located on the inner side of the expanded portion 430.

Hereinafter, the flow of the refrigerant in the distributor assembly according to the first embodiment will be described.

When the refrigerant system is in the cooling operation mode, the refrigerant flows through the condenser and is condensed into the two-phase refrigerant mixed with the liquid phase and the vapor phase, and flows into the distributor 200 through the refrigerant pipeline 100 in this state.

In this process, the liquid refrigerant leans through the curved portion 110 of the refrigerant pipe 100, and the refrigerant in which the leaning phenomenon occurs is separated from the refrigerant pipe 100 having the narrow cross- .

The refrigerant leaning toward the first axial pipe portion 411 of the axial pipe portion 410 is gradually reduced along the inner wall of the axial pipe portion 410 whose sectional area gradually becomes narrower, A large amount is sent toward the tube portion 432. Referring to FIG. 6, a large amount of refrigerant flowing in the A direction is sent in the B direction, and a part of the refrigerant is sent in the B 'direction.

Therefore, the refrigerant having passed through the refrigerant pipe 100 having the regulating device 400 is supplied not only to the plurality of distribution channels 230, but also to the distribution channels 230 located outside the distribution channels 230 A larger amount of refrigerant is introduced into the flow path 230.

As a result, the amount of refrigerant passing through each of the plurality of capillary inlets 240 becomes equal. As described above, the length of each of the plurality of capillaries 300 is made different, and the length of the capillary 300 located on the inner side is longer than the length of the capillary 300 located on the outer side Because.

The amount of the refrigerant flowing through the capillary inlet 240 becomes equal to the temperature measured at the outlet of the capillary inlet 240, thereby improving the cooling performance and reliability.

The refrigerant introduced into the plurality of capillary inlets 240 is expanded through the capillary 300 to circulate the refrigerant cycle.

Second Example

A second embodiment of the regulator 400 is shown in FIG. The overall configuration of the regulating device 400 according to the second embodiment is a form in which the diameter of the cross-section and the diameter gradually increase from the hollow cylindrical cylinder to the upper and lower portions and the extending ribs are integrally formed. In Fig. 7, the boundary between the above hollow cylinder and the cowl is shown as a virtual boundary line (l, l ').

The adjusting device 400 according to the second embodiment may include the shaft portion 410, the copper pipe portion 420, and the extending portion 430.

The axial pipe portion 410 extends from the lower portion to the upper portion and has a reduced cross-sectional area, and is preferably smaller than the cross-sectional area of the refrigerant pipe 100 as in the first embodiment. Thus, the refrigerant pipe 100 is provided with a refrigerant pipe 100, which reduces the flow cross-sectional area of the refrigerant flowing through the refrigerant pipe 100.

The axial pipe portion 410 may include a first axial pipe portion 411 and a second axial pipe portion 412 as in the first exemplary embodiment and may include a first axial pipe portion 411 and a second axial pipe portion 412, The description is the same as in the first embodiment and thus will be omitted.

The copper pipe portion 420 extends from the shaft portion 410 and has the same cross-sectional area. As an example, it may be a hollow cylindrical member. The adjusting device 400 according to the second embodiment has a design factor of the length L of the copper pipe portion 420 in addition to the design factors of d and? Of the adjusting device 400 according to the first embodiment.

Preferably, the length L of the copper tube portion 420 is 150 mm to 250 mm. If the length L of the pipe section 420 is less than 150 mm, the effect of preventing the liquid phase refrigerant from leaning is not sufficient. If the length L is more than 250 mm, the sectional area of the refrigerant pipe 100 is also shortened. The resistance to flow becomes large, and the production cost increases.

The tube portion 430 extends upward from the copper tube portion 420 and gradually increases in cross-sectional area. Here, the upper part may vary depending on whether the regulating device 400 according to the second embodiment is installed in the refrigerant pipe 100, but the regulating device 400 is disposed at a position where the upper part indicates the direction of the distributor 200 .

The expanding portion 430 includes a first expanding portion 431 and a second expanding portion 432, which are the same as in the first embodiment, and thus will not be described.

Hereinafter, the flow of the refrigerant in the distributor assembly according to the second embodiment will be described.

When the refrigerant system is in the cooling operation mode, the refrigerant flows through the condenser and is condensed into the two-phase refrigerant mixed with the liquid phase and the vapor phase. In this state, the refrigerant flows into the distributor 200 through the refrigerant pipe 100, Same as.

In this process, the liquid refrigerant leans through the curved portion 110 of the refrigerant pipe 100, and the refrigerant flows in the direction C of FIG. The refrigerant flowing in the C direction flows through the pipe section 420 and is dispersed in the D direction and the D 'direction. In order to adjust the amount of refrigerant dispersed in each of the D direction and the D 'direction to the required flow rate, the user can select the length L of the copper pipe portion 420 through a plurality of experiments or the like.

Accordingly, refrigerant of the same flow rate can be introduced into each of the plurality of capillaries 300 in both the heating operation and the cooling operation of the refrigerant system.

Third Example

A third embodiment of the regulator 400 is shown in Fig. As an example, the regulating device 400 according to the third embodiment also includes a curved portion 420a corresponding to the curved portion 110 of the refrigerant pipe 100. The curved portion 110 of the refrigerant pipe 100 is divided into the first curve portion 110 and the adjustment device 400 to distinguish the curved portion 110 of the refrigerant pipe 100 from the curved portion 420a of the regulating device 400. [ ) Is referred to as a second curve 420a.

The adjustment device 400 according to the third embodiment may include the shaft portion 410, the second curve portion 420a, and the expansion portion 430. Further, as shown in Fig. 8, a copper pipe section may be included between l and l ', l' 'and l' ''.

The axial pipe portion 410 extends from the upper portion to the lower portion and has a reduced cross-sectional area, and is preferably smaller than the cross-sectional area of the refrigerant pipe 100. Thus, the refrigerant pipe 100 is provided with a refrigerant pipe 100, which reduces the flow cross-sectional area of the refrigerant flowing through the refrigerant pipe 100.

The second curve 420a extends downward from the shaft portion 410 and is curved. However, a copper pipe portion as shown in Fig. 8 may be included between the second curve portion 420a and the shaft pipe portion 410. [

The second bend section 420a corresponds to the bend section 110 of the refrigerant pipe 100 and is provided on the first bend section 110 of the refrigerant pipe 100. In this case, the cross-sectional area of the first bend section 110 of the refrigerant pipe 100 is reduced, and the tilting phenomenon is reduced. In Fig. 8, the boundary of the second curve 420a is shown as a virtual boundary line l ', l ".

In addition, when the length between the first bend section 110 of the refrigerant pipe 100 and the distributor 200 is not sufficient, it is impossible to apply the regulating device 400 according to the second embodiment, The adjusting device 400 according to the third embodiment has an advantage that is applicable.

The tube portion 430 extends upward from the second curve portion 420a and gradually increases in cross-sectional area. However, as shown in Fig. 8, a copper pipe portion having a length of L may be included.

The expansion portion 430 includes a first expansion portion 431 and a second expansion portion 432, which are the same as those of the first and second embodiments, and thus will not be described.

Hereinafter, the flow of the refrigerant in the distributor assembly according to the third embodiment will be described.

When the refrigerant system is in the cooling operation mode, the refrigerant flows through the condenser and is condensed into the two-phase refrigerant mixed with the liquid phase and the vapor phase. In this state, the refrigerant flows into the distributor 200 through the refrigerant pipe 100, Same as.

8 of the regulating device 400 according to the third embodiment of the present invention installed in the refrigerant pipe 100 and the curved portion 110 of the refrigerant pipe 100, The refrigerant is dispersed in the F direction and the F 'direction through the curved portion 420a having a narrower sectional area than that of the refrigerant.

In order to adjust the amount of refrigerant dispersed in each of the F direction and the F 'direction to a required flow rate, the user can select the length L of the section having the same cross-sectional area located beyond the curved portion 420a through a plurality of experiments . Further, the other design factors d,? Are the same as in the first embodiment.

Accordingly, refrigerant of the same flow rate can be introduced into each of the plurality of capillaries 300 in both the heating operation and the cooling operation of the refrigerant system.

Fourth Example

A fourth embodiment of the regulator 400 is shown in Fig.

9, the regulating device 400 according to the fourth embodiment is characterized in that the refrigerant pipe 100 has two or more curved portions 110 and 120, and one curved portion 120 has a curved portion 120 ).

The adjusting device 400 according to the fourth embodiment has a large difference in the positions provided on the refrigerant pipe 100 from the first embodiment, the second embodiment and the third embodiment. The adjusting device 400 according to the fourth embodiment is provided between the curved portion 120 diffracted laterally and the other curved portion 110 as shown in Fig. That is, the regulating device 400 according to the fourth embodiment flows in the laterally-diffracted curved portion 120 to alleviate the tilting of the refrigerant in which the tilting phenomenon occurs, flows through the other curved portion 110 The refrigerant pipeline 100 is cooled by the straight pipe portion 130 of the refrigerant pipe 100. At this time, the above effect can be achieved only when the length L 'of the straight pipe portion 130 is secured to a predetermined length or more.

9, the adjusting device 400 according to the first embodiment is shown, but the adjusting device 400 according to the second and third embodiments is also applicable.

Hereinafter, the flow of the refrigerant in the distributor assembly according to the fourth embodiment will be described.

When the refrigerant system is in the cooling operation mode, the refrigerant flows through the condenser and is condensed into the two-phase refrigerant mixed with the liquid phase and the vapor phase. In this state, the refrigerant flows into the distributor 200 through the refrigerant pipe 100, Same as.

The refrigerant flowing through the refrigerant pipe 100 passes through the curved portion 120 that is laterally diffused and is sideways sideways. This causes the refrigerant pipe 100 having the reduced cross-sectional area to pass through the regulating device 400 . However, as described in the first embodiment, it is also possible to control the leaning in the intended direction or to control the amount of dispersion in each direction, instead of mitigating the leaning of the refrigerant through the regulating device 400 Do.

The refrigerant having passed through the refrigerant pipe 100 having a reduced cross-sectional area by the adjusting device 400 flows through the straight pipe portion 130 through the curved portion 110. Depending on the setting of the length L 'of the straight pipe portion 130, the deflection of the refrigerant may be used to suit the user's purpose.

Accordingly, refrigerant of the same flow rate can be introduced into each of the plurality of capillaries 300 in both the heating operation and the cooling operation of the refrigerant system.

Although the preferred embodiments of the present invention have been described, the present invention is not limited to the specific embodiments described above. It will be apparent to those skilled in the art that numerous modifications and variations can be made in the present invention without departing from the spirit or scope of the appended claims. And equivalents should also be considered to be within the scope of the present invention.

10: Compressor
20: condenser
21: blowing fan
30: Evaporator
31: blowing fan
100: Refrigerant piping
110,120:
130:
200: Dispenser
210: Dispenser head
220: Refrigerant piping inlet
230: Distribution Euro
240: capillary inlet
300: capillary
400: regulating device
410:
411:
412:
420:
420a:
430:
431: first expansion part
432: a second expansion part

Claims (12)

A refrigerant pipe having one or more curved portions through which the refrigerant flows and which changes the flow direction of the refrigerant from one direction to another;
A distributor connected to an outlet side of the refrigerant pipe for distributing the refrigerant through a plurality of paths;
A plurality of capillaries connected to an outlet side of the distributor and through which the refrigerant distributed in the distributor flows; And
A regulating device provided in a refrigerant pipe between the distributor and the curved portion, for changing a flow cross sectional area of the refrigerant,
The adjusting device comprises:
A first axial pipe portion having a diameter which is smaller than an outlet-side diameter of the refrigerant pipe and in which the flow direction is changed from one direction to the other in the curved portion and in which the liquid- And a second axial pipe portion through which the gaseous refrigerant flows, a portion of the liquid refrigerant flowing in the first axial pipe portion; And
A first expansion portion extending from the first shaft portion toward the distributor and having a diameter gradually larger than a diameter of the outlet portion of the shaft portion; and a second expansion portion facing the first expansion portion, And an expanding portion including a second expanding portion,
Wherein the first axial pipe portion guides the liquid refrigerant in which the leaning occurs due to the curved portion to the second expansion portion.
Distributor assembly.
delete delete The method according to claim 1,
Wherein the distributor comprises a plurality of distribution channels,
Wherein the control device controls the amount of the refrigerant flowing into the distribution channel located at one side of the plurality of distribution channels and the flow rate of the refrigerant flowing into the distribution channel located at the other side,
Distributor assembly.
The method according to claim 1,
Wherein the first shaft portion and the second shaft portion have the same curvature.
Distributor assembly.
6. The method of claim 5,
Wherein the first shaft portion and the second shaft portion are symmetrical with respect to a virtual center line with the first and second expanding portions,
Distributor assembly.
delete The method according to claim 1,
Wherein the refrigerant guided to the second expansion portion flows into the distribution flow path located inside the distribution flow path located outside the plurality of distribution flow paths of the distributor.
Distributor assembly.
A refrigerant pipe having a first bend portion through which the refrigerant flows and which changes the flow direction of the refrigerant from one direction to another;
A distributor connected to an outlet side of the refrigerant pipe for distributing the refrigerant through a plurality of paths;
A plurality of capillaries connected to an outlet side of the distributor and through which the refrigerant distributed in the distributor flows; And
And a regulating device provided in the refrigerant pipe for changing a flow cross-sectional area of the refrigerant,
The adjusting device comprises:
An axial pipe portion having a diameter which is smaller than an outlet-side diameter of the refrigerant pipe; And
A copper tube portion extending from the shaft portion and having a diameter equal to an outlet side diameter of the shaft portion;
And an expanding portion having a diameter increasing gradually larger than an outlet-side diameter of the copper tube portion and extending from the shaft portion toward the distributor,
Wherein the length of the copper tube portion is longer than the length of the outer circumferential surface of the shaft tube portion and the expanded tube portion.
Distributor assembly.
delete 10. The method of claim 9,
And the length of the copper tube portion is from 150 mm to 250 mm.
Distributor assembly.
10. The method of claim 9,
Wherein the copper pipe portion includes a second bend portion corresponding to the first bend portion of the refrigerant pipe and the second bend portion is provided on the first bend portion.
Distributor assembly.

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