CN219511065U - Oil separator of refrigerator - Google Patents

Abstract

The utility model relates to the technical field of oil separators, in particular to an oil separator of a refrigerator, which comprises a shell, wherein one side of the shell is communicated with an air inlet pipe, one end of the air inlet pipe extends into the shell and is connected with a spiral pipe, the top of the shell is connected with an air outlet pipe, the bottom end of the air outlet pipe is close to an air outlet of the spiral pipe, the top end of the air outlet pipe extends to the outer side of the shell, a first filter screen, a second filter screen and a third filter screen are sequentially arranged at the bottom of the inner side of the air outlet pipe from bottom to top, a flow baffle plate is fixedly arranged in the shell, the flow baffle plate is arranged below the spiral pipe, a plurality of through holes are formed in the flow baffle plate, the bottom of the shell is communicated with an oil outlet pipe, and an on-off valve is arranged on the oil outlet pipe; according to the utility model, the refrigerant gas with the refrigerating machine oil is separated by utilizing the centrifugal force effect of the spiral pipe, so that the oil return efficiency is improved, the structural size of the oil separator is compact, and the space occupied by a refrigerating system is reduced.

Description

Oil separator of refrigerator

Technical Field

The utility model relates to the technical field of oil separators, in particular to an oil separator of a refrigerator.

Background

In the refrigerating system, a large amount of refrigerating machine oil is sprayed into the compressor during working, the refrigerating machine oil plays roles of cooling, sealing and noise reduction while lubricating the rotor, but the refrigerating machine oil is discharged together with refrigerant vapor after being mixed, and if the refrigerating machine oil enters into heat exchange equipment of the refrigerating system, such as a condenser, an evaporator and the like, a layer of oil film is formed on the heat transfer surface to form larger heat resistance, so that the heat exchange effect is reduced. According to the related data, when an oil film of 0.1mm is attached to the evaporating surface, the evaporating temperature is reduced by 2.5 ℃ and the power consumption is 11-12%. Therefore, an oil separator is arranged between the compressor and the condenser so as to separate the refrigerating machine oil mixed in the refrigerant vapor, and the refrigerating machine oil in the unit is recycled, so that the compressor is prevented from being failed due to oil shortage, and the normal operation of a refrigerating system is ensured.

The existing oil separator has low oil separation efficiency, particularly for a refrigeration system with a large number of pieces, the oil with a large volume is often needed to be selected to improve the oil return amount, but the occupied space of the refrigeration system is increased, so that the design of the oil separator with high separation efficiency and proper volume is important.

Disclosure of Invention

The utility model aims to provide an oil separator of a refrigerator, which is compact in structural size and reduces the occupied space of a refrigerating unit while improving oil return efficiency.

In order to achieve the above object, the technical scheme of the present utility model is as follows:

the utility model provides an oil separator of refrigerator, includes the casing, one side intercommunication of casing has the intake pipe, the one end of intake pipe extends extremely in the casing and be connected with the spiral pipe, the top of casing is connected with the outlet duct, the bottom of outlet duct is close to the gas outlet setting of spiral pipe, the outlet duct top extends extremely the outside of casing, the inboard bottom of outlet duct has set gradually first filter screen, second filter screen and third filter screen from down upwards, the casing internal fixation is provided with the fender flow board, the fender flow board is located the below of spiral pipe, a plurality of through-holes have been seted up on the fender flow board, the bottom intercommunication of casing has the oil outlet pipe, install the on-off valve on the oil outlet pipe.

Further, a plurality of oil outlets are formed in the bottom of the spiral tube.

Further, the oil outlet is obliquely arranged, and the inclination direction of the oil outlet is opposite to the spiral inclination direction of the spiral pipe.

Further, the mesh numbers of the first filter screen, the second filter screen and the third filter screen are sequentially increased.

Further, the on-off valve is a floating ball valve, and a floating ball part of the floating ball valve is positioned at the bottom of the inner side of the shell.

The beneficial effects of the utility model are as follows:

refrigerant gas with refrigerator oil enters a spiral pipe through an air inlet pipe, mixed gas is separated through the spiral pipe, centrifugal force effect during separation can be increased by the spiral pipe, large-particle-size oil drops are centrifugally separated onto the inner side wall of the spiral pipe, the primarily separated gas enters an air outlet pipe, and small-particle-size oil drops are filtered and intercepted under the filtering effect of a first filter screen, a second filter screen and a third filter screen; meanwhile, the spiral tube can effectively increase the separation path of the mixed gas so as to reduce the volume of the oil separator; the oil separator provided by the utility model separates refrigerant gas with refrigerating machine oil by utilizing the centrifugal force effect through the spiral pipe, so that the oil return efficiency is improved, the structural size of the oil separator is compact, and the space occupied by a refrigerating unit is reduced.

Drawings

FIG. 1 is a schematic perspective view of the present utility model;

FIG. 2 is a top view of the present utility model;

fig. 3 is a cross-sectional view at A-A in fig. 2.

Reference numerals: a housing 1; an intake pipe 2; a spiral pipe 3; an air outlet pipe 4; a first screen 5; a second screen 6; a third screen 7; a baffle plate 8; a through hole 9; an oil outlet pipe 10; an on-off valve 11; an oil outlet 12; a float ball portion 13.

Detailed Description

The following description of the embodiments of the present utility model will be made clearly and fully with reference to the accompanying drawings, in which it is evident that the embodiments described are only some, but not all embodiments of the utility model. All other embodiments, which can be made by those skilled in the art based on the embodiments of the utility model without making any inventive effort, are intended to be within the scope of the utility model.

As shown in fig. 1, an oil separator of a refrigerator comprises a shell 1, one side of the shell 1 is communicated with an air inlet pipe 2, one end of the air inlet pipe 2 extends into the shell 1 and is connected with a spiral pipe 3, the top of the shell 1 is connected with an air outlet pipe 4, the bottom end of the air outlet pipe 4 is close to an air outlet of the spiral pipe 3, the top end of the air outlet pipe 4 extends to the outer side of the shell 1, a first filter screen 5, a second filter screen 6 and a third filter screen 7 are sequentially arranged at the bottom of the inner side of the air outlet pipe 4 from bottom to top, a flow baffle plate 8 is fixedly arranged in the shell 1, the flow baffle plate 8 is arranged below the spiral pipe 3, a plurality of through holes 9 are formed in the flow baffle plate 8, the bottom of the shell 1 is communicated with an oil outlet pipe 10, and an on-off valve 11 is arranged on the oil outlet pipe 10.

Refrigerant gas with refrigerator oil enters the spiral pipe 3 through the air inlet pipe 2, mixed gas is separated through the spiral pipe 3, the spiral pipe 3 can increase the centrifugal force effect during separation, large-particle-size oil drops are centrifugally separated onto the inner side wall of the spiral pipe 3, the gas after preliminary separation enters the air outlet pipe 10, and small-particle-size oil drops are filtered, intercepted and separated under the filtering effect of the first filter screen 5, the second filter screen 6 and the third filter screen 7; meanwhile, the spiral pipe 3 can also effectively increase the separation path of the mixed gas so as to reduce the volume of the oil separator; oil drops in the spiral tube 3 and the air outlet tube 10 are collected to the bottom of the inner side of the shell 1 and flow back to the compressor through the oil outlet tube 10; the oil separator separates refrigerant gas with refrigerating machine oil by utilizing the centrifugal force effect through the spiral pipe 3, so that the oil separator has compact structure and size while improving the oil return efficiency, and reduces the space occupied by a refrigerating unit.

A plurality of oil outlets 12 are formed in the bottom of the spiral tube 3; the oil outlet 12 is obliquely arranged, and the inclination direction of the oil outlet 12 is opposite to the spiral inclination direction of the spiral pipe 3; the oil outlet 12 is arranged, so that the oil discharging speed in the pipe of the spiral pipe 3 can be accelerated, and the problem of oil accumulation in the pipe of the spiral pipe 3 is solved.

The number of the filter meshes of the first filter screen 5, the second filter screen 6 and the third filter screen 7 is increased in sequence.

The on-off valve 11 is a floating ball valve, and a floating ball part 13 of the floating ball valve is positioned at the bottom of the inner side of the shell 1; when the oil liquid at the bottom of the inner side of the shell 1 reaches a certain liquid level, the float valve is opened, and the oil liquid in the shell 1 is discharged from the oil outlet pipe 10.

Finally, it is noted that the above embodiments are only for illustrating the technical solution of the present utility model and not for limiting the same, and although the present utility model has been described in detail with reference to the preferred embodiments, it should be understood by those skilled in the art that modifications and equivalents may be made thereto without departing from the spirit and scope of the technical solution of the present utility model, which is intended to be covered by the scope of the claims of the present utility model.

Claims (5)

1. An oil separator of a refrigerator, characterized in that: including casing (1), one side intercommunication of casing (1) has intake pipe (2), the one end of intake pipe (2) extends extremely in casing (1) and is connected with spiral pipe (3), the top of casing (1) is connected with outlet duct (4), the bottom of outlet duct (4) is close to the gas outlet setting of spiral pipe (3), the top of outlet duct (4) extends extremely the outside of casing (1), the inboard bottom of outlet duct (4) has set gradually first filter screen (5), second filter screen (6) and third filter screen (7) from down, casing (1) internal fixation is provided with baffle (8), baffle (8) are located the below of spiral pipe (3), a plurality of through-holes (9) have been seted up on baffle (8), the bottom intercommunication of casing (1) has delivery pipe (10), install on delivery pipe (10) on-off valve (11).

2. An oil separator for a refrigerator according to claim 1, wherein: a plurality of oil outlets (12) are formed in the bottom of the spiral tube (3).

3. An oil separator for a refrigerator according to claim 2, wherein: the oil outlet (12) is obliquely arranged, and the inclination direction of the oil outlet (12) is opposite to the spiral inclination direction of the spiral pipe (3).

4. An oil separator for a refrigerator according to claim 1, wherein: the mesh numbers of the first filter screen (5), the second filter screen (6) and the third filter screen (7) are sequentially increased.

5. An oil separator for a refrigerator according to claim 1, wherein: the on-off valve (11) is a floating ball valve, and a floating ball part (13) of the floating ball valve is positioned at the bottom of the inner side of the shell (1).