CN201599993U - New Centrifugal Oil Separator - Google Patents

Abstract

The utility model discloses a centrifugal oil separator, which relates to a device which utilizes centrifugal force to separate lubricating liquid from refrigerant. The purpose is to provide a new centrifugal oil separator with simple structure, good separation effect, and the air inlet and exhaust port can be on the same axis. The utility model comprises a closed oil separation shell, an air intake pipe and an exhaust pipe, the air intake pipe is fixedly connected to the upper end of the oil separation shell, the exhaust pipe is fixedly connected to the lower end of the oil separation shell, and a swirl baffle is installed under the air intake pipe , part of the edge of the swirl baffle is fixedly connected with the inner wall of the oil separation shell, the gap between the swirl baffle and the oil separation shell is equipped with a deflector that rotates downward along the inner wall of the oil separation shell, and on the upper outer wall of the exhaust pipe A cylindrical inner barrel is fixed through the inner barrel support rod, and the upper end of the inner barrel is fixed with a conical inner cone. The bottom of the oil separation shell is equipped with an oil separation plate inclined downward, and the upper and lower edges of the oil separation plate are opened. There are several gaps, and the bottom of the oil separator housing is provided with an oil discharge hole.

Description

New Centrifugal Oil Separator

technical field

The utility model relates to a device for separating lubricating liquid from refrigerant, in particular to a top-in and bottom-out oil separator.

Background technique

The circulation of lubricating oil plays a vital role in the safe operation of the refrigeration system. If the lubricating oil brought out by the compressor exhaust cannot be fully returned to the compressor, it will cause compressor lubrication failure and seriously damage the compressor. .

There are many kinds of oil separators used for oil separation in refrigeration systems, such as gravity oil separators that rely on gravity to separate oil, filter oil separators that rely on internal fillers to separate oil, and oil separators that rely on centrifugal force to separate oil. Centrifugal oil separator. The oil separator that relies on gravity to separate oil is not only limited in installation, but its oil separation efficiency is low, and it is difficult to meet the requirements of oil separation in many cases; the packing type oil separator has a high oil separation effect, but due to its packing It is very dense. With the long-term use of the refrigeration system, its resistance will gradually increase. In addition, most of the fillers use stainless steel wire mesh, which is expensive; the centrifugal oil separator is to create the rotation effect of the air flow, and the oil droplets are thrown away by centrifugal force Separating oil on the barrel wall of the separator can also achieve a good oil separation effect.

In order to achieve the rotation effect after the airflow enters the separator, the structure of the current centrifugal oil separator is mostly vertically arranged for the air inlet and outlet. For example, the centrifugal filter oil separator with Chinese utility model patent No. 88214249.6 relies on centrifugal force and internal filter to achieve the oil separation effect. It adopts the form of side air intake and side exhaust, which has a large volume and high cost; The Chinese invention patent publication number is CN1766466A's invention patent application for a new type of oil separator. This patent adopts the structure of side air intake, upper part exhaust, and bottom surface oil discharge, and centrifugal force is used inside to separate oil. The structure is simple and the cost is low. However, in most cases, the exhaust port of the compressor and the air inlet of the condenser are not arranged vertically, which will bring difficulties to the connection of the pipelines.

Utility model content

The technical problem to be solved by the utility model is to provide a new type of centrifugal oil separator with simple structure, good separation effect, and the air inlet and exhaust port can be on the same axis.

The new centrifugal oil separator of the utility model comprises a closed oil separation shell, an air intake pipe and an exhaust pipe, wherein the air intake pipe is fixedly connected to the upper end of the oil separation shell, and the exhaust pipe is fixedly connected to the top of the oil separation shell. The lower end, and the upper end of the exhaust pipe extends into the oil separation shell, the air intake pipe is coaxial with the exhaust pipe, and a swirl baffle is installed below the air intake pipe, and part of the edge of the swirl baffle is connected to the oil separation shell. The inner wall is fixedly connected, the gap between the swirl baffle and the oil separation shell is equipped with a deflector that rotates downward along the inner wall of the oil separation shell, and the upper outer wall of the exhaust pipe is fixed with a cylindrical inner barrel through the inner barrel support rod , the inner barrel is located between the exhaust pipe and the oil separation shell, the upper end of the inner barrel is fixed with a conical inner cone, the bottom of the oil separation shell is equipped with an oil separation plate inclined downward, and the oil separation plate The upper edge of the oil separation plate is fixedly connected with the inner wall of the oil separation shell, the lower edge of the oil separation plate is fixedly connected with the outer wall of the exhaust pipe, there are several gaps on the upper and lower edges of the oil separation plate, and the bottom of the oil separation shell is provided with Oil drain hole.

The utility model is a new type of centrifugal oil separator, wherein the swirl baffle is two semicircular plates whose centers coincide and are relatively connected, wherein the edge of the plate with a larger radius is fixedly connected to the inner wall of the oil separation shell .

In the centrifugal oil separator of the utility model, the angle α between the oil separating plate and the exhaust pipe is ≤30°.

In the centrifugal oil separator of the utility model, the cone angle β of the inner vertebral body is less than or equal to 45°.

The difference between the new centrifugal oil separator of the utility model and the prior art lies in that the inlet pipe and the exhaust pipe of the new centrifugal oil separator of the utility model are arranged at the upper and lower ends of the oil separator shell, and the swirl flow pipe arranged inside The baffle plate, deflector, inner barrel and inner cone allow the gas entering from the upper inlet pipe to flow along the combined air passage in the oil separation shell, and then be discharged from the lower exhaust pipe to achieve the purpose of the invention.

In the centrifugal oil separator of the utility model, the included angle between the oil separating plate and the exhaust pipe and the conical angle of the inner vertebral body are set in order to facilitate the turning of the gas when flowing and reduce the aerodynamic resistance.

The novel centrifugal oil separator of the present utility model will be further described below in conjunction with the accompanying drawings.

Description of drawings

Fig. 1 is the front sectional view of the utility model novel centrifugal oil separator;

Fig. 2 is a three-dimensional schematic diagram of the internal structure of the new centrifugal oil separator of the present invention.

Detailed ways

As shown in Figure 1, the utility model centrifugal oil separator includes a closed oil separation shell 1, an air intake pipe 2 and an exhaust pipe 3, the air intake pipe 2 is longitudinally welded on the upper end of the oil separation shell 1, and the exhaust pipe 3 is longitudinally welded to the upper end of the oil separation shell 1. Welded on the lower end of the oil separation shell 1, and the upper end of the exhaust pipe 3 extends into the oil separation shell 1, the air intake pipe 2 and the exhaust pipe 3 are coaxial, and a swirl flow baffle 4 is installed under the air intake pipe 2, and the swirl flow Part of the edge of the baffle 4 is welded to the inner wall of the oil separation shell 1, and the gap between the swirl baffle 4 and the oil separation shell 1 is equipped with a deflector 5 that rotates downward along the inner wall of the oil separation shell 1, and the exhaust pipe 3 The upper outer wall is welded with a cylindrical inner barrel 7 through the inner barrel support rod 6. The inner barrel 7 is located between the exhaust pipe 3 and the oil separation shell 1. The upper end of the inner barrel 7 is welded with a conical inner cone 8, and the inner cone 8 The cone angle β≤45°, the bottom of the oil separation shell 1 is equipped with an oil separation plate 9 inclined downward, the upper edge of the oil separation plate 9 is welded with the inner wall of the oil separation shell 1, the lower edge of the oil separation plate 9 is connected with the exhaust The outer wall of the pipe 3 is welded, the angle between the oil separator 9 and the exhaust pipe 3 is α≤30°, there are several gaps 10 on the upper and lower edges of the oil separator 9, and the bottom of the oil separator shell 1 is provided with a drain Oil hole 11.

As shown in FIG. 2 , the swirl baffle 4 is two semicircular plates whose centers coincide and are relatively connected. The edge of the plate with a larger radius is welded to the inner wall of the oil separation shell 1 .

The working process of the new centrifugal oil separator of the utility model is briefly described as follows: the gas with lubricating oil enters the oil separation shell 1 from the intake pipe 2, passes through the swirl baffle 4 and the deflector 5, and the gas enters the oil separation shell Rotation occurs in 1, and the oil in the gas adheres to the inner wall of the oil separation shell 1 under the action of centrifugal force, and then flows into the oil separation plate 9 below, or directly flows into the bottom of the oil separation shell 1, and the gas is on the oil separation plate 9 Under the reflection of the inner body 7, some oil droplets will also adhere to the inner wall of the inner body 7 under the action of centrifugal force, and then drop on the oil separation plate 9, and then flow into the bottom of the oil separation shell 1 concentratedly, and the gas will pass through the inner body The cone 8 is reflected into the exhaust pipe 3, and the oil separation case 1 is discharged from the exhaust pipe 3. The oil collected at the bottom of the oil separator housing 1 can be drained from the oil drain hole 11 .

The above-mentioned embodiments are only described to the preferred implementation of the utility model, and are not limited to the scope of the utility model. Various modifications and improvements made should fall within the scope of protection determined by the claims of the utility model.

Claims (4)

1. A novel centrifugal oil separator, comprising an airtight oil separation housing (1), an air intake pipe (2) and an exhaust pipe (3), characterized in that: the air intake pipe (2) is fixedly connected to the oil separation housing The upper end of the body (1), the exhaust pipe (3) is fixedly connected to the lower end of the oil separation casing (1), and the upper end of the exhaust pipe (3) extends into the oil separation casing (1), the air intake pipe (2) Coaxial with the exhaust pipe (3), a swirl baffle (4) is installed under the intake pipe (2), and part of the edge of the swirl baffle (4) is connected to the oil separator housing (1) The inner wall is fixedly connected, and the gap between the swirl baffle (4) and the oil separation casing (1) is equipped with a deflector (5) that rotates downward along the inner wall of the oil separation casing (1), and the exhaust pipe (3) The upper outer wall of the cylinder is fixed with a cylindrical inner barrel (7) through the inner barrel support rod (6). The inner barrel (7) is located between the exhaust pipe (3) and the oil separation shell (1), and the inner barrel (7) ) is fixedly equipped with a conical inner cone (8), and the bottom of the oil separation shell (1) is equipped with an oil separation plate (9) inclined downward, and the upper edge of the oil separation plate (9) is in contact with the oil separation The inner wall of the housing (1) is fixedly connected, the lower edge of the oil separator (9) is fixedly connected with the outer wall of the exhaust pipe (3), and there are several gaps (10) on the upper and lower edges of the oil separator (9) , the bottom of the oil separation housing (1) is provided with an oil drain hole (11). 2. The novel centrifugal oil separator according to claim 1, characterized in that: the swirl baffle (4) is two half-circular plates whose centers coincide and are relatively connected, and the one with the larger radius The edge of the plate is fixedly connected with the inner wall of the oil separation case (1). 3. The novel centrifugal oil separator according to claim 2, characterized in that: the angle α between the oil separator plate (9) and the exhaust pipe (3) is ≤30°. 4. The novel centrifugal oil separator according to claim 3, characterized in that: the cone angle β of the inner cone (8) is ≤45°.

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