KR101641124B1 - Oil Separator - Google Patents

Abstract

The oil separator according to the present invention includes: a housing having a cylindrical shape elongated in the vertical direction and provided with a space therein; an inlet pipe provided on the upper surface of the housing for injecting a mixed gas of refrigerant and oil into the housing, An oil discharge pipe provided at the lower end of the housing for discharging the oil separated from the mixed gas to the outside of the housing; a cooler provided in the lower side of the housing for discharging refrigerant separated from the mixed gas to the outside of the housing; And the inflow pipe is formed to be curved or bent in the inside of the housing so as to penetrate the upper surface of the housing in the longitudinal direction of the housing so that the diameter of the housing can be minimized, The mixed gas is injected in a circumferential direction, and the refrigerant discharge pipe is connected to the center of the housing It relates to an oil separator, characterized in that provided in the lower side.

Description

Oil Separator

The present invention relates to an oil separator. More particularly, the present invention relates to an oil separator, in which an inlet pipe through which a gas mixture flows and a refrigerant outlet pipe through which refrigerant is discharged are spaced apart from each other, To an oil separator capable of separating oil by rotating in a screw shape.

Generally, an oil separator is an apparatus to be installed between a compressor and a condenser, and separates oil from compressed refrigerant vapor so that only refrigerant is purified.

That is, the refrigerant is compressed in the compressor, and the oil injected into the compressor is mixed and discharged. When the mixed gas of the refrigerant and the oil flows, the flow path is closed to obstruct the flow of the refrigerant, There is a problem that it is deteriorated.

In this regard, the technology relating to the oil separator and the air conditioner including the oil separator is disclosed in Korean Patent Laid-Open Publication No. 10-2013-0043977 (2013.05.02), which is located on the side of the case and includes a plurality of suction pipes And the refrigerant discharge pipe is vertically inserted into the casing in the vertical direction. However, since the refrigerant suction pipe and the refrigerant discharge pipe are both formed in the upper portion of the case, there is a problem that a lot of space is required for forming both the refrigerant suction pipe and the refrigerant discharge pipe.

The centrifugal oil separator is disclosed in Korean Patent Laid-Open Publication No. 10-2006-0119173, and includes an inlet pipe for injecting refrigerant at a predetermined depth from one side of the casing along the longitudinal direction thereof, The present invention is directed to a structure in which an inlet pipe for injecting a refrigerant toward an inner wall surface of a casing is inserted into a casing by a predetermined depth so that when the refrigerant is injected into the casing, There is a problem that the efficiency of the separation of the refrigerant and the oil is reduced due to a decrease in the helical rotational force of the refrigerant injected by the inlet pipe.

Korean Patent Publication No. 10-2013-0043977 (Feb. Korean Patent Publication No. 10-2006-0119173 (November 24, 2006)

It is an object of the present invention to provide an oil separator in which an inlet pipe through which a mixed gas is introduced and a refrigerant outlet pipe from which refrigerant is discharged are spaced apart from each other and can be downsized.

Another object of the present invention is to provide an oil separator capable of increasing the efficiency of dispersion of refrigerant and oil in the mixed gas by rotating the mixed gas introduced through the inlet pipe into a screw shape inside the housing.

Further, there is provided an oil separator capable of increasing a circulation speed of a mixed gas introduced through an inlet pipe by providing a groove or a projection for guiding screw rotation inside a refrigerant outlet pipe or a housing, thereby improving the dispersion efficiency of refrigerant and oil There is another purpose.

The problems to be solved by the present invention are not limited to the above-mentioned problems, and other problems to be solved by the present invention, which are not mentioned here, can be clarified to those skilled in the art from the following description It can be understood.

The oil separator according to the present invention includes: a housing having a cylindrical shape elongated in the vertical direction and provided with a space therein; an inlet pipe provided on the upper surface of the housing for injecting a mixed gas of refrigerant and oil into the housing, An oil discharge pipe provided at the lower end of the housing for discharging the oil separated from the mixed gas to the outside of the housing; a cooler provided in the lower side of the housing for discharging refrigerant separated from the mixed gas to the outside of the housing; And the inflow pipe is formed to be curved or bent in the inside of the housing so as to penetrate the upper surface of the housing in the longitudinal direction of the housing so that the diameter of the housing can be minimized, The mixed gas is injected in a circumferential direction, and the refrigerant discharge pipe is connected to the center of the housing It is characterized in that provided in the lower side.

The inflow pipe may be provided at a plurality of points symmetrical with respect to the center of the upper end of the housing, and the mixed gas is discharged through the inflow pipe so as to rotate in the same direction along the inner wall surface of the housing .

A cylindrical center guide protruding from the center of the upper surface of the housing toward the inside of the housing is further provided in the housing, and the center guide is discharged in a circumferential direction of the inner space of the housing through the inlet pipe And guiding the mixed gas to be rotatable in a spiral direction to a lower end of the housing.

The inner surface of the housing or the outer surface of the center guide is formed with a spiral groove or protrusion for guiding the mixed gas introduced into the inlet pipe so that the mixed gas introduced through the inlet pipe can be rotated in the spiral direction .

The refrigerant outlet pipe is bent upward from the center of the housing so that the mixed gas introduced through the inlet pipe can be guided so as to be rotatable in the spiral direction. And at least one refrigerant discharge hole which can be discharged to the refrigerant discharge pipe is provided.

The inner diameter of the upper end of the refrigerant discharge pipe adjacent to the inflow pipe is formed to be smaller than the inner diameter of the remaining portion of the refrigerant discharge pipe so that the diameter of the housing is minimized and the flow of the mixed gas introduced through the inflow pipe can be smoothly performed .

A spiral groove or protrusion for guiding the mixed gas introduced into the inlet pipe is formed in the inner side surface of the housing so that the mixed gas introduced through the inlet pipe can be rotated in the spiral direction.

A ring-shaped guide ring for smoothly dispersing the mixed gas introduced into the inlet pipe is formed in the upper end of the housing, a lower end of the guide ring is closed and supported at the lower end of the guide ring, And a guide vane provided with a guide line for spraying the mixed gas in a circumferential direction of the inner space of the housing.

And the oil is discharged through the oil discharge pipe to the upper portion of the oil discharge pipe through the lower portion of the mixed gas introduced into the inlet pipe.

The oil separator of the present invention has the effect that the inlet pipe through which the mixed gas flows and the refrigerant outlet pipe through which the refrigerant is discharged are spaced apart from each other to be made smaller.

In addition, the mixed gas flowing through the inlet pipe rotates in a screw shape inside the housing, thereby improving the dispersion efficiency of the refrigerant and the oil in the mixed gas.

Further, grooves or protrusions for guiding screw rotation are provided in the refrigerant discharge pipe or the housing to increase the circulation speed of the mixed gas flowing through the inlet pipe, thereby improving the dispersion efficiency of the refrigerant and the oil.

1 is a side view showing an oil separator according to a first embodiment of the present invention;
2 is a side view showing an oil separator according to a second embodiment of the present invention;
3 is a side view showing an oil separator according to a third embodiment of the present invention;
4 is a side view showing an oil separator according to a fourth embodiment of the present invention;
5 is a side view showing an oil separator according to a fifth embodiment of the present invention.
6 is a side view showing an oil separator according to a sixth embodiment of the present invention;
7 is a side view showing an oil separator according to a seventh embodiment of the present invention.
8 is a side view showing an oil separator according to an eighth embodiment of the present invention;
9 is a side view showing an oil separator according to a ninth embodiment of the present invention.

The above and other objects, features and advantages of the present invention will be more apparent from the following detailed description taken in conjunction with the accompanying drawings, in which: FIG. BRIEF DESCRIPTION OF THE DRAWINGS The advantages and features of the present invention and the manner of achieving them will become apparent by reference to an embodiment which will be described in detail below with reference to the accompanying drawings.

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS The present invention will be described in more detail with reference to the accompanying drawings.

≪ Embodiment 1 >

First, the oil separator according to the first embodiment of the present invention includes a housing 110, which is formed in a cylindrical shape in a vertical direction and has a space therein, and an oil separator provided on the upper surface of the housing 110, An inlet pipe 120 for injecting the mixed gas into the housing 110 and an oil discharge pipe 120 provided at the lower end of the housing 110 for discharging the oil separated from the mixed gas to the outside of the housing 110. [ And a refrigerant discharge pipe 140 extending through the lower side of the housing 110 and discharging the refrigerant separated from the mixed gas to the outside of the housing 110.

First, a housing 110 is provided in the oil separator of the present invention. The housing 110 is formed in a cylindrical shape in the vertical direction and has a space therein. That is, the housing 110 serves to store a mixed gas in which refrigerant and oil to be introduced by the inlet pipe 120, which will be described later, are mixed at the upper and lower ends.

An inlet pipe 120 is provided on the upper surface of the housing 110. The inlet pipe 120 is provided on the upper surface of the housing 110 and serves to inject a mixture of refrigerant and oil into the housing 110. That is, the inflow pipe 120 penetrates the upper surface of the housing 110 in the longitudinal direction of the housing 110 so that the diameter of the housing 110 can be minimized, Or bent so as to spray the mixed gas in the circumferential direction of the inner space of the housing 110.

This is because the inflow pipe 120 is provided on the upper surface of the housing 110 so that the size of the inner diameter of the housing 110 can be reduced compared to the case where the inflow pipe 120 is formed on the side surface of the housing 110 have.

That is, in the conventional oil separator, the inlet pipe 120 is formed on the upper side of the housing 110, and is formed to overlap with the refrigerant outlet pipe 140 formed through the center of the housing 110, The size of the inner diameter of the housing 110 is increased to prevent the refrigerant discharge tube 120 and the refrigerant discharge tube 140 from overlapping each other.

In the oil separator according to the present invention, the inlet pipe 120 is formed at the upper end of the housing 110 so that the inlet pipe 120 and the refrigerant outlet pipe 140 do not overlap with each other, And serves to turn the mixed gas flowing through the inflow pipe 120 into the housing 110. This is because the structural characteristics of the inflow pipe 120 formed at the upper end of the housing 110 can reduce the size of the inner diameter of the conventional oil separator housing and produce the same performance.

The inlet pipe 120 may be provided on one side of the upper surface of the housing 110. That is, the inflow pipe is provided at one side of the housing 110 to smoothly discharge the mixed gas from the housing 110 in the circumferential direction of the housing. This is because the mixed gas discharged by the inlet pipe 120 smoothly rotates in the spiral direction along the inner surface of the housing 110.

In addition, the inflow pipe 120 may be formed in a linear flow path shape. That is, the inflow pipe 120 is formed in a straight line shape and penetrates the upper surface of the housing 110 in the longitudinal direction of the housing 110, and the inflow pipe 120 is inserted into the housing 110 ) Holes may be provided in the circumferential direction of the inner space to discharge the mixed gas. This shows the same effect as the above-mentioned structure of the inflow tube 120 being curved or bent.

An oil discharge pipe 130 is provided at the lower end of the housing 110. The oil discharge pipe 130 is provided at the lower end of the housing 110 and discharges the separated oil out of the mixed gas introduced into the housing 110 through the inlet pipe 120 to the outside of the housing 110 .

On the lower side of the housing 110, a refrigerant discharge pipe 140 is provided. The refrigerant discharge pipe 140 is provided to penetrate the lower side of the housing 110 and discharges the refrigerant separated from the mixed gas to the outside of the housing 110.

In addition, the refrigerant discharge pipe 140 is installed below the center of the housing 110. This is because refrigerant and oil are smoothly separated as the mixed gas flowing into the housing 110 moves to the lower end of the housing 110, so that the separated refrigerant is located at a lower position than the center of the housing 110, And the like.

The refrigerant discharge pipe 140 installed below the center of the housing 110 is installed in the housing 110 so as to be spaced apart from the inflow pipe 120. In the housing 110, The refrigerant discharge pipe 120 and the refrigerant discharge pipe 140 are not installed at the same position so as to overlap each other, thus requiring a smaller space than the conventional oil separator. That is, the refrigerant discharging pipe 140 is installed below the center of the housing 110, so that the size of the inside diameter of the housing 110 can be reduced.

In addition, the separation of the oil and the refrigerant in the oil separator according to the present invention may be performed by separating the oil and the refrigerant from the oil separator by rotating the housing 110 while rotating the mixed gas introduced into the housing 110 through the inlet pipe 120, 110 and the collision between the oil particles, the oil is released from the mixed gas.

≪ Embodiment 2 >

The oil separator according to the second embodiment of the present invention includes the housing 210, the inlet pipe 220, the oil outlet pipe 230, and the refrigerant (not shown) having the same configuration and effect as the oil separator according to the first embodiment of the present invention. And a discharge pipe 240.

The oil separator according to the second embodiment of the present invention is different from the oil separator according to the first embodiment of the present invention in the configuration of the inlet pipe 220.

The inflow pipe 220 according to the second embodiment is provided at a plurality of points symmetrical with respect to the center of the upper end of the housing 210. That is, at least two of the inlet pipe 220 are symmetrical with respect to the center of the upper end of the housing 210, and the mixed gas flowing through the inlet pipe 220 flows along the inner wall surface of the housing 210 And discharges them so as to rotate in the same direction. This has the effect of increasing the separation efficiency of the mixed gas by increasing the rotational speed and the inflow amount by providing a plurality of the inlet pipes 220.

In addition, the size of the inner diameter of the housing 210 can be reduced by the structure of the inflow pipe 220 formed at the upper end of the housing 210 according to the second embodiment. That is, the plurality of inlet pipes 220 can reduce the diameter of the inlet pipe 220 in comparison with the mixed gas discharge amount of one inlet pipe 120 according to the first embodiment, It is possible to increase the discharge flow rate of the mixed gas and increase the separation efficiency of the oil by the turning force of the mixed gas. This is because the size of the inside diameter of the housing 210 is increased by the effect of increasing the discharge flow rate of the inflow pipe 220 and increasing the turning force of the mixed gas, The inner diameter of the housing 110 can be made smaller than the inner diameter of the housing 110 according to the example.

≪ Third Embodiment >

The oil separator according to the third embodiment of the present invention includes the housing 310, the inflow pipe 320, the oil discharge pipe 330, and the refrigerant, which have the same construction and effect as the oil separator according to the first embodiment of the present invention, And a discharge pipe (340).

Further, the oil separator according to the third embodiment of the present invention protrudes inward from the center of the upper surface of the inside of the housing 310 and the components of the oil separator according to the first embodiment of the present invention And the center guide 350 is formed.

The center guide 350 according to the third embodiment is formed inside the housing 310 and protrudes in a cylindrical shape from the center of the upper surface of the housing 310 toward the inside of the housing 310. That is, the center guide 350 guides the mixed gas discharged in the circumferential direction of the inner space of the housing 310 through the inflow pipe 320 so as to be rotatable in the spiral direction to the lower end of the housing 310 . This has the effect of increasing the rotational force of the mixed gas flowing through the inlet pipe 320 and the efficiency of separating the refrigerant and the oil by the center guide 350.

Spiral grooves or protrusions are formed on the inner surface of the housing 310 or on the outer surface of the center guide 350. That is, the mixed gas introduced through the inlet pipe 320 is guided to be rotatable in the spiral direction by the spiral grooves or projections formed on the inner surface of the housing 310 or on the outer surface of the center guide 350. This is achieved by guiding the mixed gas to the refrigerant discharge pipe 340 by the spiral grooves or projections formed on the inner surface of the housing 310 or on the outer surface of the center guide 350, The increase of the rotational force of the mixed gas and the efficiency of the separation of the refrigerant and the oil are increased.

<Fourth Embodiment>

The oil separator according to the fourth embodiment of the present invention is similar to the oil separator according to the first embodiment of the present invention except that the housing 410, the inflow pipe 420, the oil discharge pipe 430, And a discharge pipe 440.

First, the oil separator according to the fourth embodiment of the present invention is different from the refrigerant discharge pipe 440 in the components of the oil separator according to the first embodiment of the present invention.

The refrigerant discharge pipe 440 according to the fourth embodiment is formed by bending upward from the center of the inside of the housing 410. That is, the refrigerant discharge pipe 440 has a structure that exhibits an effect similar to that of the center guide 350 of the third embodiment. The refrigerant discharge pipe 440 is bent upward from the center of the inside of the housing 410, And serves to guide the rotation of the mixed gas flowing through the mixing chamber. This is because the mixed gas introduced through the inlet pipe 420 is rotated in the spiral direction by the refrigerant discharge pipe 440 formed upwardly bent from the center of the inside of the housing 410, As shown in FIG.

A refrigerant discharge hole 442 is formed at one side of the refrigerant discharge pipe 440. At least one of the refrigerant discharge holes 442 is provided at one side of the refrigerant discharge pipe 440 to discharge the refrigerant in the housing 410. That is, the refrigerant discharge hole 442 discharges the refrigerant separated from the mixed gas inside the housing 410 to the outside of the housing 410.

The refrigerant discharge hole 442 is provided at the upper end of the bending portion that is bent in a direction perpendicular to the center of the inside of the housing 410. The refrigerant discharge pipe 440 located below the center of the housing 410 for discharging only the separated refrigerant while the mixed gas flowing through the inlet pipe 420 rotates to the lower end of the housing 410, And is formed at the upper end of the bent portion.

A spiral groove or protrusion is formed on the inner surface of the housing 410 or the outer surface of the bent portion bent upwardly of the refrigerant discharge pipe 440. That is, the mixed gas introduced through the inflow pipe 420 by the helical grooves or protrusions formed on the inner side of the housing 410 or on the outer side of the bent portion bent upwardly of the refrigerant discharge pipe 440, So as to be rotatable. This is achieved by guiding the mixed gas to the refrigerant discharge hole 442 by the spiral grooves or projections formed on the inner side of the housing 410 or the outer side of the bent portion bent upwardly of the refrigerant discharge pipe 440 At the same time, the rotational force of the mixed gas introduced into the housing 410 and the efficiency of separating the refrigerant and the oil are increased.

<Fifth Embodiment>

The oil separator according to the fifth embodiment of the present invention includes a housing 510, an inlet pipe 520, an oil outlet pipe 530, and a refrigerant pipe 530 having the same configuration and effect as the oil separator according to the fourth embodiment of the present invention. And a discharge pipe 540.

First, the oil separator according to the fifth embodiment of the present invention is different from the refrigerant discharge pipe 540 in the components of the oil separator according to the fourth embodiment of the present invention.

The refrigerant discharge pipe 540 according to the fifth embodiment is bent upward from the center of the inside of the housing 510 and extends to the upper end of the inside of the housing 510. That is, the refrigerant discharge pipe 540 has a structure that exhibits an effect similar to the center guide 350 of the third embodiment. The refrigerant discharge pipe 540 is bent upward from the center of the inside of the housing 510, And serves to guide the rotation of the mixed gas flowing through the mixing chamber. This is because the mixed gas introduced through the inlet pipe 520 is bent in the spiral direction by the refrigerant outlet pipe 540 which is bent upward from the center of the housing 510 and formed up to the upper end of the inside of the housing 510 And moves to the lower end of the housing 510.

In addition, a refrigerant discharge hole 542 is provided at one side of the refrigerant discharge pipe 540. The refrigerant discharge hole 542 is the same as the refrigerant discharge hole 442 according to the fifth embodiment.

The inner diameter of the upper end of the refrigerant discharge pipe 540 adjacent to the inlet pipe 520 is smaller than the inner diameter of the remaining portion of the refrigerant discharge pipe 540. This is because the mixing And the diameter of the housing 510 is minimized by preventing the inflow pipe 520 and the upper end of the refrigerant discharge pipe 540 from overlapping each other.

On the outer side surfaces of the refrigerant discharge pipes 440 and 540 formed in the inner sides of the housings 410 and 510 or in the vertical direction to the inner center of the housings 410 and 510 according to the fourth and fifth embodiments, A spiral groove or projection is formed. That is, by the spiral grooves or protrusions formed on the outer surfaces of the refrigerant discharge pipes 440 and 540 formed on the inner surfaces of the housings 410 and 510 or the center of the inner surfaces of the housings 410 and 510, And 520 are guided to be rotatable in a spiral direction. This is achieved by a spiral groove or protrusion formed on the inner side of the housing 410 or 510 or on the outer side of the refrigerant discharge pipes 440 and 540 formed in the vertical direction to the center of the inner sides of the housings 410 and 510, It is possible to increase the rotational force of the mixed gas introduced into the housings 410 and 510 and the efficiency of separating the refrigerant and the oil, as well as guiding the refrigerant to the refrigerant discharge holes 442 and 542.

<Sixth Embodiment>

The oil separator according to the sixth embodiment of the present invention includes a housing 610, an inlet pipe 620, an oil outlet pipe 630, and a refrigerant pipe 630 having the same construction and effect as the oil separator according to the fourth embodiment of the present invention. And a discharge pipe 640.

The oil separator according to the sixth embodiment of the present invention includes the oil separator according to the fourth embodiment of the present invention and the guide ring 650 provided at the upper end of the inside of the housing 610, And a guide vane 660 provided at the lower end of the guide plate 650.

First, the inflow pipe 620 according to the sixth embodiment is provided at the center of the upper end of the housing 610. The inlet pipe 620 is provided at the center of the upper end of the housing 610 and serves to inject the mixed gas into the housing 610.

A guide ring 650 is provided at an upper end inside the housing 610. The guide ring 650 has a ring-shaped space formed at an upper end of the inside of the housing 610 along the inner surface of the housing 610. That is, in the space formed inside the guide ring 650, the mixed gas flowing into the inlet pipe 620 is stored, and the mixed gas stored inside the guide ring 650 is uniformly dispersed . This is because the mixed gas stored inside the guide ring 650 is uniformly dispersed so that refrigerant and oil can be separated from the inside of the housing 610.

A guide vane 660 is provided at the lower end of the guide ring 650. The guide vane 660 is provided at the lower end of the guide ring 650 and serves to close and support the lower end of the guide ring 650. That is, the guide vane 660 closes the lower end of the guide ring 650 to store and disperse the mixed gas in the guide ring 650.

At the upper end of the guide vane 660, a guide line 662 is provided. The guide line 662 passes through the upper surface of the guide vane 660 in the longitudinal direction of the housing 610 and is curved or bent inside the housing 610, And guiding the mixed gas stored in the guide ring 650 in the circumferential direction to be injected into the housing 610.

The guide line 662 may be provided at a plurality of positions symmetrical with respect to the center of the upper end of the guide vane 660. The guide line 662 may guide the mixed gas to the inside of the housing 610 It can be discharged so as to rotate in the same direction along the wall surface.

In addition, the inner diameter of the discharge port of the guide line 662 can be formed by varying the inner diameter depending on the use conditions. That is, the inner diameter of the toe soccer of the guide line 662 can be manufactured by reducing or enlarging the inner diameter according to the discharge flow rate set value, so that the flow rate inside the housing 610 can be adjusted to the set value.

<Seventh Embodiment>

The oil separator according to the seventh embodiment of the present invention includes a housing 710, an inlet pipe 720, an oil outlet pipe 730, and a refrigerant pipe 730 having the same configuration and effect as the oil separator according to the fourth embodiment of the present invention. And a discharge pipe 740.

The oil separator according to the seventh embodiment of the present invention further comprises a demister 750 at the upper part of the oil separator 730 and the components of the oil separator according to the fourth embodiment of the present invention.

First, the demister 750 according to the seventh embodiment is provided at the upper end of the oil discharge pipe 730. The oil discharge pipe 730 is provided at an upper end of the oil discharge pipe 730 so that only oil in the mixed gas introduced into the inlet pipe 720 passes through the oil discharge pipe 730, ) To the outside. This serves to prevent the refrigerant in the mixed gas from being discharged to the oil discharge pipe 730 by the demister 750.

The demister 750 may be made of a similar material such as a net type, a sponge, or a fabric so that only the oil stored in the demister 750 is permeated downward and discharged through the oil discharge pipe 730 .

&Lt; Eighth Embodiment >

The oil separator according to the eighth embodiment of the present invention includes a housing 810, an inlet pipe 820, an oil outlet pipe 830, and a refrigerant pipe 820 having the same configuration and effect as the oil separator according to the first embodiment of the present invention. And a discharge pipe 840.

The oil separator according to the eighth embodiment of the present invention protrudes inward of the housing 810 at the center of the upper surface of the inside of the housing 810 and the components of the oil separator according to the first embodiment of the present invention And the center guide 850 is formed.

The center guide 850 according to the eighth embodiment is formed inside the housing 810 and protrudes in a cylindrical shape from the center of the upper surface inside the housing 810 toward the inside of the housing 810. That is, the center guide 850 guides the mixed gas discharged in the circumferential direction of the inner space of the housing 810 through the inlet pipe 820 to be rotatable in the spiral direction to the lower end of the housing 810 . This has the effect of increasing the rotational force of the mixed gas introduced through the inlet pipe 820 and the efficiency of separating the refrigerant and the oil by the center guide 850.

&Lt; Example 9 &

The oil separator according to the ninth embodiment of the present invention includes a housing 910, an inlet pipe 920, an oil outlet pipe 930, and a refrigerant pipe 930 having the same configuration and effect as the oil separator according to the first embodiment of the present invention. And a discharge pipe 940.

First, the oil separator according to the ninth embodiment of the present invention is different from the refrigerant discharge pipe 940 of the components of the oil separator according to the first embodiment of the present invention.

The refrigerant discharge pipe 940 according to the ninth embodiment is formed by bending upward from the center of the inside of the housing 910. That is, the refrigerant discharge pipe 940 has a structure that exhibits an effect similar to the center guide 850 of the eighth embodiment. The refrigerant discharge pipe 940 is bent upward from the center of the inside of the housing 910, And serves to guide the rotation of the mixed gas flowing through the mixing chamber. This is because the mixed gas introduced through the inlet pipe 920 is rotated in the spiral direction by the refrigerant discharge pipe 940 formed upwardly from the center of the inside of the housing 910, As shown in FIG.

A refrigerant discharge hole 942 is formed at one side of the refrigerant discharge pipe 940. At least one of the refrigerant discharge holes 942 is provided at one side of the refrigerant discharge pipe 940 to discharge the refrigerant in the housing 910. That is, the refrigerant discharge hole 942 discharges the refrigerant separated from the mixed gas inside the housing 910 to the outside of the housing 910.

The refrigerant discharge hole 942 is provided at the upper end of the bending portion that is bent in the vertical direction to the center of the inside of the housing 910. This is because the mixed gas introduced through the inlet pipe 920 rotates to the lower end of the housing 910 and is discharged to the refrigerant discharge pipe 940 located below the center of the housing 910 to discharge only the separated refrigerant, And is formed at the upper end of the bent portion.

As described above, it is to be understood that the technical structure of the present invention can be embodied in other specific forms without departing from the spirit and essential characteristics of the present invention.

Therefore, it should be understood that the above-described embodiments are to be considered in all respects as illustrative and not restrictive, the scope of the invention being indicated by the appended claims rather than the foregoing description, All changes or modifications that come within the scope of the equivalent concept are to be construed as being included within the scope of the present invention.

110, 210, 310, 410, 510, 610, 710: housing
120, 220, 320, 420, 520, 620, 720: inlet pipe
130, 230, 330, 430, 530, 630, 730:
140, 240, 340, 440, 540, 640, 740:
350: Center guide
442, 542, 642, 742: a refrigerant discharge hole
650: Guide ring 660: Guide vane
662: Guideline 750: Demister

Claims (9)

A housing formed in a cylindrical shape elongated in a vertical direction and having a space therein;
An inlet pipe provided on the upper surface of the housing for injecting a mixed gas mixed with a refrigerant and oil into the housing;
An oil discharge pipe provided at the lower end of the housing for discharging the oil separated from the mixed gas to the outside of the housing;
And a refrigerant discharge pipe which is provided to penetrate the lower side of the housing and discharges the refrigerant separated from the mixed gas to the outside of the housing,
Wherein the inlet pipe is formed to be curved or bent in the housing so as to penetrate the upper surface of the housing in the longitudinal direction of the housing so that the diameter of the housing can be minimized, Spray,
Wherein the refrigerant discharge pipe is provided below the center of the housing,
A ring-shaped guide ring for smoothly dispersing the mixed gas introduced into the inlet pipe is formed in the upper end of the housing,
Wherein a guide vane is further provided at a lower end of the guide ring and supports a lower end of the guide ring and is provided with a guide line for spraying the mixed gas inside the guide ring in a circumferential direction of the inner space of the housing,
The refrigerant discharge tube is bent upward from the center of the housing so that the mixed gas introduced through the inlet tube can be guided so as to be rotatable in the spiral direction,
Wherein one side of the refrigerant discharge pipe is provided with at least one refrigerant discharge hole through which the refrigerant in the housing can be discharged to the refrigerant discharge pipe. delete delete delete delete delete The method according to claim 1,
On the inner side surface of the housing,
And a spiral groove or protrusion for guiding the mixed gas introduced into the inlet pipe is formed so that the mixed gas introduced through the inlet pipe is rotatable in the spiral direction.
delete delete

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