CN220507339U - A U-shaped vertical oil separator - Google Patents

Abstract

The utility model provides a U-shaped vertical oil separator, which includes a U-shaped outer cylinder. One side of the U-shaped outer cylinder is provided with an air inlet, and the other side is provided with an air outlet; There is an inner cylinder on one side, which is located on the side close to the air inlet, and a filter assembly on the other side; the bottom of the U-shaped outer cylinder is provided with an oil drain. Beneficial effects of the utility model: The U-shaped vertical oil separator distributes the rotation separation process and the filtration separation process in two spaces, reducing the mutual influence of the two separation processes and improving the overall oil separation effect.

Description

A U-shaped vertical oil separator

Technical field

The utility model belongs to the technical field of central air conditioning equipment, and in particular relates to a U-shaped vertical oil separator.

Background technique

Lubricating oil plays an important role in the safe and efficient operation of air conditioning systems, including lubrication, cooling, flushing, sealing, vibration reduction, unloading, and protection. However, under extreme working conditions, the lubricating oil in the compressor will mix with the refrigerant vapor into the circulation system in the form of droplets, which will have an adverse impact on the energy efficiency of the refrigeration system and the service life of the compressor.

Vertical oil separators are usually centrifugal, using centrifugal force to separate oil and gas. However, the rotation space of the oil-gas mixture in traditional vertical oil separators is limited. Usually the inner cylinder and the outer cylinder are coaxially arranged, so that the rising oil-gas mixture and the oil droplets falling from the filter screen are offset, resulting in smaller oil droplets. Hard to separate.

Utility model content

In view of this, the present utility model aims to provide a U-shaped vertical oil separator with a simple structure and high oil separation efficiency.

In order to achieve the above purpose, the technical solution of the present invention is achieved as follows:

A U-shaped vertical oil separator includes a U-shaped outer cylinder, and an air inlet is provided on one side of the U-shaped outer cylinder and an air outlet is provided on the other side;

There is an inner cylinder on one side of the U-shaped outer cylinder, which is located on the side close to the air inlet, and a filter assembly is provided on the other side; the bottom of the U-shaped outer cylinder is provided with an oil drain.

Furthermore, an air inlet pipe is provided at the air inlet. The air inlet pipe is arranged horizontally and tangentially on the upper left side of the U-shaped outer cylinder. The end of the air inlet pipe extends to the surface of the inner cylinder; to ensure that the oil and gas mixture flows along the cylinder. The tangential direction of the body enters the interior of the U-shaped outer cylinder.

Further, the inner cylinder is a solid cylindrical cylinder, which is coaxial with the vertical space on one side of the U-shaped outer cylinder; the upper end of the inner cylinder is fixed to the upper end of the vertical space on the left side of the outer cylinder; the length of the inner cylinder is consistent with that of the outer cylinder. The length of the vertical space on the left side of the cylinder is the same, and its length is not less than 5 times the diameter of the air inlet.

Furthermore, an oil collection net is provided on the inner wall of the vertical space on one side of the U-shaped outer cylinder. Preferably, the length of the oil collecting net is the same as the length of the inner cylinder, and the top of the oil collecting net is arranged above the air inlet.

Further, the inner diameter of the U-shaped outer cylinder is at least three times the inner diameter of the air intake pipe.

Further, the difference between the outer diameter of the inner cylinder and the inner diameter of the U-shaped outer cylinder is 0.3 to 0.4 of the inner diameter of the U-shaped outer cylinder.

Further, the filter assembly includes several filter screens, which are arranged in an inclined manner in the U-shaped outer cylinder in sequence, and the bottom end of the filter assembly is provided with an oil guide pipe. Preferably, the number of all filters is 2. The liquid oil droplets that were not separated during the primary oil separation process are filtered by two filters in the vertical space on the left side of the outer cylinder. This is the secondary oil separation process.

The oil guide pipe is a semi-hollow cylindrical oil guide pipe. The oil droplets on the filter drop along the oil guide pipe to the bottom of the outer cylinder under the action of gravity.

Further, the angle between the filter screen and the inner wall of the U-shaped outer cylinder is 38°.

Furthermore, the bottom of the U-shaped outer cylinder is provided with an oil outlet pipe through the oil outlet, and an impurity filter is provided in the oil outlet pipe to collect the falling oil droplets on the left and right sides and discharge them.

Furthermore, the filter and impurity filter are both made of 06Cr19Ni10.

Compared with the existing technology, the U-shaped vertical oil separator described in the present utility model has the following advantages:

Judging from the technical solutions provided by the utility model above, compared with the traditional technology, the utility model provides a U-shaped vertical oil separator. The inner wall of the left barrel is equipped with an oil collection net to increase the gas flow on the wall. The disturbance causes the droplets with smaller radius to form droplets with larger radius on the oil collection net, thereby improving the vortex separation effect. There are two layers of filters in the vertical space on the right side, which are placed at an angle to increase the filtering area. This U-shaped vertical oil separator distributes the rotation separation process and the filtration separation process in two spaces, reducing the mutual influence of the two separation processes and improving the overall oil separation effect.

Description of the drawings

The drawings that constitute a part of the present utility model are used to provide a further understanding of the present utility model. The schematic embodiments of the present utility model and their descriptions are used to explain the present utility model and do not constitute an improper limitation of the present utility model. In the attached picture:

Figure 1 is a schematic diagram of a U-shaped vertical oil separator according to an embodiment of the present utility model;

Figure 2 is a top view of the inner cylinder of a U-shaped vertical oil separator provided by the utility model;

Figure 3 is a schematic diagram of the U-shaped vertical oil separator during operation (the process of lubricating oil being separated) provided by the utility model.

Explanation of reference symbols:

1. Air intake pipe; 2. Inner cylinder; 3. Oil collection net; 4. U-shaped outer cylinder; 5. Oil outlet pipe; 6. Impurity filter; 7. Oil guide pipe; 8. Filter; 9. Exhaust pipe .

Detailed ways

It should be noted that, as long as there is no conflict, the embodiments and features of the embodiments of the present invention can be combined with each other.

In the description of the present invention, it should be understood that the terms "center", "longitudinal", "lateral", "upper", "lower", "front", "rear", "left", "right", The orientations or positional relationships indicated by "vertical", "horizontal", "top", "bottom", "inner", "outer", etc. are based on the orientations or positional relationships shown in the drawings, and are only for the convenience of describing the present invention. The novel and simplified description does not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be construed as a limitation of the present invention. Furthermore, the terms “first”, “second”, etc. are used for descriptive purposes only and cannot be understood as indicating or implying relative importance or implicitly indicating the quantity of indicated technical features. Thus, features defined by "first," "second," etc. may explicitly or implicitly include one or more of such features. In the description of the present invention, unless otherwise stated, the meaning of "plurality" is two or more.

In the description of the present utility model, it should be noted that, unless otherwise clearly stated and limited, the terms "installation", "connection" and "connection" should be understood in a broad sense. For example, it can be a fixed connection or a removable connection. Detachable connection, or integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium; it can be an internal connection between two components. For those of ordinary skill in the art, the specific meanings of the above terms in the present invention can be understood through specific situations.

The utility model will be described in detail below with reference to the accompanying drawings and embodiments.

A U-shaped vertical oil separator includes a U-shaped outer cylinder 4. One side of the U-shaped outer cylinder 4 is provided with an air inlet, and the other side is provided with an air outlet; one side of the U-shaped outer cylinder 4 There is an inner cylinder 2 inside, which is located on one side close to the air inlet, and a filter assembly is provided on the other side; the bottom of the U-shaped outer cylinder 4 is provided with an oil drain port. An air inlet pipe 1 is provided at the air inlet. The air inlet pipe 1 is arranged horizontally and tangentially on the upper left side of the U-shaped outer cylinder 4. The end of the air inlet pipe 1 extends to the surface of the inner cylinder 2; to ensure that the oil and gas mixture flows along the cylinder. The tangential direction of the body enters the interior of the U-shaped outer cylinder 4.

The inner cylinder 2 is a solid cylindrical cylinder, coaxial with the vertical space on one side of the U-shaped outer cylinder 4; the upper end of the inner cylinder 2 is fixed to the upper end of the vertical space on the left side of the outer cylinder; the length of the inner cylinder 2 is the same as that of the outer cylinder. The length of the vertical space on the left side of the body is the same, and its length is not less than 5 times the diameter of the air inlet. The inner wall of the vertical space on one side of the U-shaped outer cylinder 4 is provided with an oil collection net 3. Preferably, the length of the oil collecting net 3 is the same as the length of the inner cylinder 2, and the top of the oil collecting net is arranged above the air inlet.

The inner diameter of the U-shaped outer cylinder 4 is at least three times the inner diameter of the intake pipe 1 . The difference between the outer diameter of the inner cylinder 2 and the inner diameter of the U-shaped outer cylinder 4 is 0.3 to 0.4 of the inner diameter of the U-shaped outer cylinder 4 . The filter assembly includes several filter screens 8, which are arranged obliquely in the U-shaped outer cylinder 4. The bottom end of the filter assembly is provided with an oil guide pipe 7. Preferably, the number of all filters 8 is 2. The liquid oil droplets that have not been separated during the primary oil separation process are filtered by two filters 8 in the vertical space on the left side of the outer cylinder. This is the secondary oil separation process. The oil guide pipe 7 is a semi-hollow cylindrical oil guide pipe 7. The oil droplets on the filter fall along the oil guide pipe 7 to the bottom of the outer cylinder under the action of gravity.

In specific implementation, the angle between the filter screen 8 and the inner wall of the U-shaped outer cylinder 4 is 38°. The bottom of the U-shaped outer cylinder 4 is provided with an oil outlet pipe 5 through an oil discharge port. An impurity filter 6 is provided in the oil outlet pipe 5 to collect the falling oil droplets on the left and right sides and discharge them.

In specific implementation, the filter screen 8 and the impurity filter screen 6 are both made of 06Cr19Ni10.

The U-shaped outer cylinder 4 is the main part of the entire oil component. The upper left side of the outer cylinder is disposed at the air inlet in the tangential direction, and the upper right side of the outer cylinder is disposed at the air outlet. The inner cylinder 2 is coaxially installed inside the vertical section on the left side of the outer cylinder, and an annular space is formed between the two.

As shown in Figure 3: the oil-gas mixture entering horizontally from the air inlet, under the action of high pressure, makes a high-speed vortex downward movement in the annular space on the left side of the oil separator. At this time, under the action of centrifugal force, the gaseous refrigerant and the liquid lubricating oil are separated, and the lubricating oil adheres to the surface of the oil collecting net 3 to form a liquid oil film. Under the action of gravity, the lubricating oil flows downward and collects at the bottom of the oil separation. This is the primary oil separation. process.

As shown in Figure 3: after the oil-air mixture passes through the oil separation once, it enters the right side of the oil separator and rises vertically under the action of pressure. During a separation process, a small amount of unseparated lubricating oil beads with smaller diameters are attached to the surface of the filter screen when passing through the filter screen 8-1 and the filter screen 2, and then pass through the filter screen 8-1 under the action of gravity. The oil guide pipe 7 at the bottom is lowered to the vicinity of the oil outlet. This is a secondary oil separation process.

The above descriptions are only preferred embodiments of the present utility model and are not intended to limit the present utility model. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present utility model shall be included in within the protection scope of this utility model.

Claims (9)

1. A U-shaped vertical oil separator is characterized in that: comprises a U-shaped outer cylinder body (4), wherein one side of the U-shaped outer cylinder body (4) is provided with an air inlet, and the other side is provided with an air outlet;

an inner cylinder (2) is arranged in one side of the U-shaped outer cylinder body (4), the inner cylinder (2) is arranged on one side close to the air inlet, and a filtering component is arranged on the other side; an oil drain port is arranged at the bottom of the U-shaped outer cylinder body (4).

2. A U-shaped vertical oil separator as defined in claim 1 wherein: the air inlet is provided with an air inlet pipe (1), the air inlet pipe (1) is horizontally arranged on the left upper side of the U-shaped outer cylinder body (4) along the tangential direction, and the end part of the air inlet pipe (1) extends to the surface of the inner cylinder (2).

3. A U-shaped vertical oil separator as defined in claim 1 wherein: the inner cylinder (2) is a solid cylinder and is coaxial with the vertical space at one side of the U-shaped outer cylinder (4); the upper end of the inner cylinder (2) is fixed at the upper end of the vertical space at the left side of the outer cylinder; the length of the inner cylinder (2) is the same as the length of the vertical space at the left side of the outer cylinder body, and the length of the inner cylinder is not smaller than 5 times of the diameter of the air inlet.

4. A U-shaped vertical oil separator as defined in claim 1 wherein: an oil collecting net (3) is arranged on the inner wall of the vertical space at one side of the U-shaped outer cylinder body (4).

5. A U-shaped vertical oil separator as defined in claim 1 wherein: the inner diameter of the U-shaped outer cylinder body (4) is at least 3 times of that of the air inlet pipe (1).

6. A U-shaped vertical oil separator as defined in claim 1 wherein: the difference between the outer diameter of the inner cylinder (2) and the inner diameter of the U-shaped outer cylinder (4) is 0.3-0.4 of the inner diameter of the U-shaped outer cylinder (4).

7. A U-shaped vertical oil separator as defined in claim 1 wherein: the filter component comprises a plurality of filter screens (8), the filter screens (8) are sequentially arranged in the U-shaped outer cylinder body (4) in an inclined mode, and an oil guiding pipe (7) is arranged at the bottom end of the filter component.

8. A U-shaped vertical oil separator as defined in claim 7 wherein: the included angle between the filter screen (8) and the inner wall of the U-shaped outer cylinder body (4) is 38 degrees.

9. A U-shaped vertical oil separator as defined in claim 1 wherein: the bottom of the U-shaped outer cylinder body (4) is provided with an oil outlet pipe (5) through an oil drain port, and an impurity filter screen (6) is arranged in the oil outlet pipe (5).