A device for improving low temperature oil return

Abstract

This utility model discloses a device for improving low-temperature oil return, belonging to the field of mechanical equipment technology. It includes a positioning groove in the air inlet pipe, an installation cylinder in the positioning groove, and several guide plates on the installation cylinder. The guide plates are staggered on both sides of the pipe body. A filter plate is provided at the end of each guide plate away from the installation cylinder. The filter plate has a mesh structure. The guide plates and filter plate are inclined towards the opening of the pipe body. This utility model has the advantage of improved filtration efficiency.

Description

Technical Field

[0001] This utility model relates to the field of mechanical equipment technology, specifically to a device for improving low-temperature oil return. Background Technology

[0002] An oil-gas separator is a device used to separate gas and liquid. Its main function is to separate oil and gas in a mixture into independent components, thereby improving the system's operating efficiency and safety. Oil-gas separators are used in various refrigeration systems to separate lubricating oil carried in compressor exhaust from the refrigerant, preventing it from entering the condenser and reducing its heat transfer efficiency. Lubricating oil vaporizes into oil mist during compressor exhaust and enters the condenser with the refrigerant gas. If lubricating oil enters the condenser, it forms an oil film on the heat transfer surface, leading to a decrease in the heat transfer coefficient, an increase in the refrigerant's evaporation temperature, and ultimately a reduction in cooling capacity. Therefore, oil-gas separators use physical mechanisms such as filtration and collision to separate oil droplets from the refrigerant gas, ensuring that the refrigerant enters the condenser in an oil-free state.

[0003] Typically, a paint separator includes a chamber, an inlet pipe, an outlet pipe, an oil outlet pipe, a filter assembly, and a liquid level control device. In use, the oil-gas mixture enters the chamber through the inlet pipe. After passing through the filter device, the oil droplets and gas are initially separated. After entering the chamber, the gas rotates and changes direction, and the gas collides continuously with the inner wall of the chamber, causing oil mist particles to be deposited on the inner wall of the chamber. Then, the oil mist particles converge downwards along the chamber and are discharged from the oil outlet pipe, while the remaining gas is discharged upwards from the outlet pipe.

[0004] However, due to the lack of partitions in the cavity, the gas cannot fully collide with the inner wall of the cavity to separate oil particles, resulting in an unsatisfactory oil-gas separation effect.

[0005] Based on this, the present invention designs a device to improve low-temperature oil return, in order to solve the above problems. Utility Model Content

[0006] To achieve the above objectives, the present invention provides the following technical solution: a positioning groove is provided in the air intake pipe, an installation cylinder is provided in the positioning groove, a plurality of guide plates are provided on the installation cylinder, the guide plates are staggered on both sides of the pipe body, a filter plate is provided at the end of the guide plate away from the installation cylinder, the filter plate is configured as a mesh structure, and the guide plate and the filter plate are inclined toward the opening of the pipe body.

[0007] By adopting the above technical solution, during use, the gas passes through the inlet pipe and collides with the guide plates on both sides of the mounting cylinder. Oil particles in the gas adhere to the guide plates. After passing through the guide plates, the gas continues to move downward through the filter plate. The filter plate continues to collect oil particles in the gas. After the oil particles adhere to a certain extent, they drip downward along the inclined direction of the filter plate, and the oil droplets can enter the cavity. The guide plates on both sides increase the adhesion area of ​​the oil particles. While filtering, the filter plate ensures that the gas can continue to move into the cavity, so that the gas can be initially filtered, improving the filtration efficiency of the oil-gas mixer.

[0008] Preferably, one side of the filter is bent downward toward the center of the mounting cylinder.

[0009] By adopting the above technical solution, oil particles can flow along the filter plate after they are collected into oil droplets, and then drip from the center of the mounting cylinder, reducing the large-area contact between the oil droplets and the filter device in the cavity, reducing the number of times the device needs to be cleaned and maintained, and improving the efficiency of the device.

[0010] Preferably, the guide piece has a downwardly recessed center.

[0011] By adopting the above technical solution, oil particles can quickly gather in the depression and then move towards the filter plate, reducing the accumulation of oil particles on the guide plate.

[0012] Preferably, the outer surface of the mounting cylinder is fixedly provided with an external thread, the inner wall of the air intake pipe is provided with an internal thread, and the mounting cylinder is threadedly connected to the air intake pipe.

[0013] By adopting the above technical solution, the mounting cylinder can be quickly removed from the air intake pipe for cleaning and replacement by rotation, making the operation simple and convenient.

[0014] Preferably, the mounting cylinder has a threaded hole, and a set screw is threaded into the threaded hole. The set screw passes through the threaded hole and is connected to the guide plate.

[0015] By adopting the above technical solution, the screws can be removed to disconnect the connection between the guide plate and the mounting cylinder, allowing the guide plate to be thoroughly cleaned and replaced.

[0016] In summary, this application has the following beneficial technical effects: During use, gas passes through the inlet pipe and collides with the guide plates on both sides of the mounting cylinder. Oil particles in the gas adhere to the guide plates. After passing through the guide plates, the gas continues to move downward through the filter plate. The filter plate continues to collect oil particles in the gas. After the oil particles adhere to a certain extent, they drip downward along the inclined direction of the filter plate, and the oil droplets can enter the cavity. The guide plates on both sides increase the adhesion area of ​​the oil particles. While filtering, the filter plate ensures that the gas can continue to move into the cavity, so that the gas can be initially filtered, thus improving the filtration efficiency of the oil-gas mixer. Attached Figure Description

[0017] To more clearly illustrate the technical solutions of the embodiments of this utility model, the accompanying drawings used in the description of the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0018] Figure 1 This is a schematic diagram of the overall external structure of the device in this embodiment;

[0019] Figure 2 This is a schematic diagram of the overall cross-sectional structure of this embodiment;

[0020] Figure 3 for Figure 2 A magnified structural diagram of A in the middle;

[0021] Figure 4 This is a schematic diagram of the mounting cylinder in this embodiment.

[0022] The attached diagram lists the components represented by each number as follows:

[0023] 1. Intake pipe; 2. Cavity; 3. Guide plate; 4. Filter plate; 5. Mounting cylinder; 6. External thread; 7. Internal thread; 8. Threaded hole; 9. Set screw. Detailed Implementation

[0024] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those skilled in the art without creative effort are within the protection scope of the present utility model.

[0025] The following is in conjunction with the appendix Figure 1-4 This application will be described in further detail.

[0026] A device for improving low-temperature oil return includes a cavity 2, an air inlet pipe 1, an air outlet pipe, an oil outlet pipe, a filter assembly, and a liquid level control device. The air inlet pipe 1 has a positioning groove, and an installation cylinder 5 is installed in the positioning groove. Several guide plates 3 are installed on the installation cylinder 5. The guide plates 3 are staggered on both sides of the pipe body. A filter plate 4 is installed at the end of the guide plate 3 away from the installation cylinder 5. The filter plate 4 is configured with a mesh structure. The guide plates 3 and the filter plate 4 are inclined towards the opening of the pipe body.

[0027] In use, gas enters the chamber 2 through the inlet pipe 1. When passing through the mounting cylinder 5, the gas collides with the guide plate 3. Oil particles in the gas adhere to the guide plate 3 after the collision. After being blocked by the guide plate 3, the gas changes its direction of movement, passes through the filter plate 4, and enters the next layer of guide plates 3, continuing to collide with the next layer of guide plates 3. After accumulating on the guide plate 3, the oil particles gather into oil droplets, which flow along the inclined direction of the guide plate 3 towards the filter plate 4. The oil droplets on the filter plate 4 collect and drip downwards into the chamber 2 for collection. This allows for preliminary filtration of the gas and oil particles, reducing the oil content of the gas entering the chamber 2, reducing the filtration burden of the device, and improving the filtration efficiency of the device.

[0028] One side of the filter plate 4 is bent downwards towards the center of the mounting cylinder 5. After the oil particles gather into oil droplets, they can flow along the filter plate 4 and then drip from the center of the mounting cylinder 5, reducing the large-area contact between the oil droplets and the filter device in the cavity 2, reducing the number of times the device needs to be cleaned and maintained, and improving the efficiency of the device. The middle part of the guide plate 3 is recessed downwards, so that the oil particles can quickly gather in the recess and move towards the filter plate 4, reducing the oil particle residue on the guide plate 3, so that the guide plate 3 can keep relatively little oil.

[0029] The outer surface of the mounting cylinder 5 is fixedly provided with an external thread 6, and the inner wall of the air intake pipe 1 is provided with an internal thread 7. The mounting cylinder 5 is threadedly connected to the air intake pipe 1. The mounting cylinder 5 has a threaded hole 8, and a set screw 9 is threadedly connected in the threaded hole 8. The set screw 9 passes through the threaded hole 8 and is connected to the guide plate 3. When disassembling the mounting cylinder 5, the mounting cylinder 5 is rotated, and the external thread 6 and the internal thread 7 on the mounting cylinder 5 engage with each other, so that the mounting cylinder 5 is removed from the positioning groove. Then, by rotating the set screw 9, the set screw 9 is removed from the threaded hole 8, so that the connection between the guide plate 3 and the mounting cylinder 5 can be disconnected. After the guide plate 3 is removed, the guide plate 3 and the mounting cylinder 5 can be cleaned or replaced more thoroughly.

[0030] The implementation principle of this embodiment is as follows: During use, the mounting cylinder 5 is installed in the positioning groove through the cooperation between the internal thread 7 and the external thread 6. Gas enters the cavity 2 from the air inlet pipe 1. When passing through the mounting cylinder 5, the gas collides with the guide plate 3. Oil particles in the gas adhere to the guide plate 3 after the collision. After being blocked by the guide plate 3, the gas changes its direction of movement and passes through the filter plate 4 to enter the next layer of guide plate 3. It continues to collide with the next layer of guide plate 3. Oil particles can collect in the recess and then flow towards the filter plate 4 along the inclined direction of the guide plate 3. After the oil droplets on the filter plate 4 collect, they drip from the center of the mounting cylinder 5 into the cavity 2 for collection, so that the gas and oil particles can be initially filtered.

[0031] In the description of this utility model, it should be understood that the terms "coaxial", "bottom", "one end", "top", "middle", "other end", "upper", "side", "top", "inner", "front", "center", "both ends", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings. They are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model.

[0032] In this utility model, unless otherwise explicitly specified and limited, the terms "installation", "setting", "connection", "fixing", "screw connection", etc., should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal connection of two components or the interaction between two components. Unless otherwise explicitly limited, those skilled in the art can understand the specific meaning of the above terms in this utility model according to the specific circumstances.

[0033] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A device for improving low temperature oil return comprising an inlet pipe (1), characterised in that: The air intake pipe (1) is provided with a positioning groove, and an installation cylinder (5) is provided in the positioning groove. Several guide plates (3) are provided on the installation cylinder (5). The guide plates (3) are staggered on both sides of the pipe body. A filter plate (4) is provided at the end of the guide plate (3) away from the installation cylinder (5). The filter plate (4) is configured as a mesh structure. The guide plate (3) and the filter plate (4) are inclined toward the opening of the pipe body.

2. The device for improving low-temperature oil return according to claim 1, characterized in that: One side of the filter (4) is bent downward toward the center of the mounting cylinder (5).

3. The device for improving low-temperature oil return according to claim 1, characterized in that: The guide piece (3) has a downward recess in the middle.

4. The device for improving low-temperature oil return according to claim 1, characterized in that: The outer surface of the mounting cylinder (5) is fixedly provided with an external thread (6), and the inner wall of the air inlet pipe (1) is provided with an internal thread (7). The mounting cylinder (5) is threadedly connected to the air inlet pipe (1).

5. The device for improving low-temperature oil return according to claim 1, characterized in that: The mounting cylinder (5) has a threaded hole (8), and a set screw (9) is threaded into the threaded hole (8). The set screw (9) passes through the threaded hole (8) and is connected to the guide plate (3).

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