Novel low-pressure-loss high-performance centrifugal oil separator

Abstract

The utility model discloses a novel centrifugal oil separator with low pressure loss and high performance, which relates to the technical field of oil separators and comprises a separator body, the surface of the separator body is fixedly connected with a feed pipe penetrating through the surface of the separator body, and a driving ring is arranged in the separator body. The feeding pipe penetrates through the surface of the driving ring and is rotationally connected with the interior of the driving ring, a material injection cover is fixedly connected to the surface of the driving ring, a conical connecting cylinder is fixedly connected to the surface of the material injection cover, a conical spiral blade is fixedly connected to the surface of the connecting cylinder, and a conical second net cylinder is rotationally connected to the surface of the connecting cylinder. The inner wall of the second net cylinder is slidably connected with the surface of the spiral blade. According to the novel low-pressure-loss high-performance centrifugal oil separator, small oil drops and oil mist in refrigerant gas are separated, the purity of the refrigerant gas is greatly improved, and meanwhile the flowing resistance of the refrigerant gas is reduced as much as possible.

Description

Technical Field

[0001] The utility model relates to the technical field of oil separators, and particularly relates to a novel centrifugal oil separator with low pressure loss and high performance. Background Art

[0002] In a refrigeration system, lubricating oil is mixed in the exhaust gas of the compressor. The lubricating oil will enter each component in the refrigeration system along with the refrigerant gas, affecting the heat exchange function of the refrigeration system. Usually, an oil separator needs to be installed between the compressor and the condenser to separate the lubricating oil from the refrigerating gas so that the lubricating oil can return to the compressor to ensure its normal operation.

[0003] However, during the use of the current centrifugal oil separator, it only simply rotates and separates the mixture, using centrifugal force to throw out the lubricating oil to achieve the separation of the lubricating oil. However, when the lubricating oil collides with the inner wall of the device, due to the relatively high rotation speed, oil mist and smaller droplets will be generated instantaneously during the collision. Since the oil mist is not treated, the oil mist will enter each component of the refrigeration system along with the refrigerant gas, thereby reducing the use effect of the separator. Summary of the Utility Model

[0004] The purpose of the utility model is to solve at least one of the technical problems existing in the prior art, and provide a novel centrifugal oil separator with low pressure loss and high performance, which can solve the problems in the background art.

[0005] To achieve the above purpose, the utility model provides the following technical solution: A novel centrifugal oil separator with low pressure loss and high performance, including a separator body. The surface of the separator body is fixedly connected with a feed pipe penetrating the surface of the separator body. The cross-section of the feed pipe is L-shaped. The top of the separator body is fixedly connected with an exhaust pipe communicating with the inside of the separator body. A driving ring is arranged inside the separator body. The feed pipe penetrates the surface of the driving ring and is rotationally connected with the inside of the driving ring. The surface of the driving ring is fixedly connected with a feeding cover. The cross-section of the feeding cover is trapezoidal. The surface of the feeding cover is provided with discharge grooves arranged at equal intervals. The surface of the feeding cover is fixedly connected with a conical connecting cylinder. The surface of the connecting cylinder is fixedly connected with a conical spiral blade. The surface of the connecting cylinder is rotationally connected with a second cylindrical net which is also conical. The surface of the second cylindrical net is provided with holes penetrating the surface of the second cylindrical net. The inner wall of the second cylindrical net is slidably connected with the surface of the spiral blade.

[0006] Preferably, the bottom of the second cylindrical net is fixedly connected with a rotating ring, and the inner wall of the rotating ring is slidably connected with the inner wall of the driving ring.

[0007] Preferably, the outer surface of the second cylindrical net is fixedly connected with a first cylindrical net. The surface of the first cylindrical net is also provided with holes. One end of the exhaust pipe located inside the separator body is fixedly connected with a fixed cylinder.

[0008] Preferably, the inner wall of the separator body is rotatably connected to a rotating disk, the inner wall of the surface of the rotating disk is fixedly connected to a connecting rod, the inner wall of the rotating disk is fixedly connected to an inner gear ring, the separator body is mounted with a motor, the output end of the motor passes through the bottom of the separator body and is rotatably connected to the inside of the separator body, the output end of the motor is fixedly connected to a gear, and the surface of the gear is meshingly connected to the inner wall of the inner gear ring.

[0009] Preferably, a gear is also fixedly connected to the surface of the driving ring, and an inner gear ring is also fixedly connected to the inner wall of the rotating ring. The surface of the gear on the driving ring is meshedly connected with the inner wall of the inner gear ring on the inner wall of the rotating ring.

[0010] Preferably, a connecting rod is fixedly connected to the inner wall of the rotating disk, and one end of the connecting rod away from the rotating disk is fixedly connected to the surface of the rotating ring.

[0011] Preferably, the bottom of the separator body is fixedly connected with an oil outlet pipe communicating with the interior of the separator body.

[0012] Compared with the prior art, the beneficial effects of the utility model are:

[0013] 1. This new type of low-pressure-loss, high-performance centrifugal oil separator separates smaller oil droplets and oil mist in the refrigerant gas, thereby greatly improving the purity of the refrigerant gas. At the same time, the flow resistance of the refrigerant gas is reduced as much as possible. At the same time, the pressure loss of the refrigerant gas is reduced as much as possible and the efficiency of the entire system is improved. It has a high promotion value and use effect. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] The utility model is further described below in conjunction with the accompanying drawings and embodiments:

[0015] Figure 1 This is a structural schematic diagram of a novel low pressure loss and high performance centrifugal oil separator of the utility model;

[0016] Figure 2 This is a schematic diagram of the internal structure of the separator body of the utility model;

[0017] Figure 3 For this utility model Figure 2 The enlarged schematic diagram at A in the middle;

[0018] Figure 4 It is a schematic diagram of the bottom structure of the separator body of the utility model.

[0019] Reference numerals: 1, separator body; 2, exhaust pipe; 3, feed pipe; 4, motor; 5, fixed cylinder; 6, first mesh cylinder; 7, spiral blade; 8, second mesh cylinder; 9, connecting cylinder; 10, rotating disk; 11, driving ring; 12, connecting rod; 13, injection cover; 14, discharge chute; 15, gear; 16, internal gear ring; 17, oil outlet pipe; 18, rotating ring. Detailed implementation manners

[0020] This part will describe in detail the specific embodiments of the present invention. The preferred embodiments of the present invention are shown in the drawings. The function of the drawings is to supplement the description in the text part of the specification, enabling people to intuitively and vividly understand each technical feature and the overall technical solution of the present invention, but it cannot be construed as a limitation on the protection scope of the present invention.

[0021] Please refer to Figures 1-4 , the present invention provides a technical solution: a novel low-pressure-loss and high-performance centrifugal oil separator, including a separator body 1. The surface of the separator body 1 is fixedly connected with a feed pipe 3 that penetrates the surface of the separator body 1. The cross-section of the feed pipe 3 is L-shaped, used for injecting a mixture of refrigerant and lubricating oil into the separator body 1. The top of the separator body 1 is fixedly connected with an exhaust pipe 2 that communicates with the inside of the separator body 1, used for discharging refrigerant gas.

[0022] A driving ring 11 is arranged inside the separator body 1. The feed pipe 3 penetrates the surface of the driving ring 11 and is rotatably connected to the inside of the driving ring 11. The surface of the driving ring 11 is fixedly connected with an injection cover 13. The cross-section of the injection cover 13 is trapezoidal. The surface of the injection cover 13 is provided with discharge chutes 14 arranged at equal intervals, used for discharging the mixture of refrigerant and lubricating oil from the injection cover 13. Secondly, the trapezoidal cross-section setting of the injection cover 13 can guide the mixture of refrigerant and lubricating oil ejected from the feed pipe 3, so that the mixture can gather at the bottom of the injection cover 13, thus ensuring that the mixture of refrigerant and lubricating oil can be smoothly thrown out through the discharge chutes 14 under the action of centrifugal force.

[0023] The surface of the charging cover 13 is fixedly connected with a conical connecting cylinder 9. The surface of the connecting cylinder 9 is fixedly connected with a conical spiral blade 7. Through the arrangement of the spiral blade 7, when the spiral blade 7 rotates, the mixture of refrigerant and lubricating oil flowing out can be conveyed. The surface of the connecting cylinder 9 is rotatably connected with a second net cylinder 8 which is also conical. The surface of the second net cylinder 8 is provided with holes penetrating the surface of the second net cylinder 8. The inner wall of the second net cylinder 8 is slidably connected with the surface of the spiral blade 7. The bottom of the second net cylinder 8 is fixedly connected with a rotating ring 18. The inner wall of the rotating ring 18 is slidably connected with the inner wall of the driving ring 11. Through the arrangement of the driving ring 11 and the rotating ring 18, the bottom of the charging cover 13, the spiral blade 7 and the second net cylinder 8 can be completely covered, thus avoiding the leakage of the mixture from the bottom of the charging cover 13, the second net cylinder 8 and the spiral blade 7, and then ensuring the smooth operation of the device.

[0024] Furthermore, the outer surface of the second net cylinder 8 is fixedly connected with a first net cylinder 6. The surface of the first net cylinder 6 is also provided with holes. One end of the exhaust pipe 2 located inside the separator body 1 is fixedly connected with a fixed cylinder 5 to collect the refrigerant gas and discharge it through the exhaust pipe 2.

[0025] The inner wall of the separator body 1 is rotatably connected with a rotating disk 10. The inner surface of the rotating disk 10 is fixedly connected with a connecting rod 12. The inner wall of the rotating disk 10 is fixedly connected with an internal gear ring 16. A motor 4 is installed on the separator body 1. The output end of the motor 4 penetrates the bottom of the separator body 1 and is rotatably connected with the inside of the separator body 1. The output end of the motor 4 is fixedly connected with a gear 15. The surface of the gear 15 is meshed with the inner wall of the internal gear ring 16. The surface of the driving ring 11 is also fixedly connected with a gear 15. The inner wall of the rotating ring 18 is also fixedly connected with an internal gear ring 16. The surface of the gear 15 on the driving ring 11 is meshed with the inner wall of the internal gear ring 16 on the inner wall of the rotating ring 18, thus ensuring that the connecting cylinder 9 and the second net cylinder 8 can rotate synchronously, and then ensuring the smooth operation of the device. The inner wall of the rotating disk 10 is fixedly connected with a connecting rod 12. One end of the connecting rod 12 away from the rotating disk 10 is fixedly connected with the surface of the rotating ring 18, so as to transmit the power of the rotating disk 10 to the rotating ring 18 and ensure the smooth operation of the device.

[0026] The bottom of the separator body 1 is fixedly connected with an oil outlet pipe 17 communicating with the inside of the separator body 1 for discharging the separated lubricating oil.

[0027] Further, when the mixture enters the injection cover 13 from the feed pipe 3, the motor 4 is started, thereby driving the gear 15 to rotate, and driving the rotating disk 10, the rotating ring 18 and the driving ring 11 to rotate. Then, after the mixture enters the injection cover 13, under the action of centrifugal force, it is thrown out through the discharge slot 14 and lands on the bottom of the second mesh cylinder 8. Since the driving ring 11 and the gear 15 rotate through the meshing of the gear 15 and the internal gear ring 16, there is a speed difference between the two. Thus, as the connecting cylinder 9 rotates, the spiral blade 7 on the surface of the connecting cylinder 9 conveys the mixture, causing the mixture to gradually rise between the second mesh cylinder 8 and the connecting cylinder 9. Since both the second mesh cylinder 8 and the connecting cylinder 9 are conical, as the mixture rises, the rotation diameter of the mixture gradually increases, so that the centrifugal force received by the mixture also gradually increases, enabling the heavier lubricating oil to gradually be thrown out of the mixture, thereby improving the thoroughness of the separation of the lubricating oil in the mixture, improving the separation quality of the lubricating oil, and having high popularization value.

[0028] During the rising process of the mixed material, since the lubricating oil entrained in the mixture is heavier than the refrigerant gas, when the mixture rotates, the centrifugal force generated causes most of the oil droplets to be thrown out radially and pass through the holes in the second mesh cylinder 8 and impact on the surface of the first mesh cylinder 6. The heavier lubricating oil droplets drip down along the surface of the first mesh cylinder 6 into the separator body 1. The smaller droplets can rotate with the first mesh cylinder 6 and, under the action of centrifugal force again, be thrown out of the first mesh cylinder 6, thus impacting on the surface of the fixed cylinder 5, causing the droplets to gradually drip down along the surface of the fixed cylinder 5 again. During this process, part of the refrigerant gas is discharged through the through holes in the upper part of the second mesh cylinder 8, part of the refrigerant gas collides with the inner wall of the first mesh cylinder 6, part of the refrigerant gas passes through the holes in the first mesh cylinder 6 and then collides with the inner wall of the fixed cylinder 5. After two collisions with the inner walls of the first mesh cylinder 6 and the fixed cylinder 5, the direction of the refrigerant gas changes, so that the fine oil droplets and oil mist entrained in the refrigerant gas are separated. Finally, the refrigerant gas enters the exhaust pipe 2 through the fixed cylinder 5 for discharge. During this process, the smaller oil droplets and oil mist in the refrigerant gas are separated, thus greatly improving the purity of the refrigerant gas. At the same time, the flow resistance of the refrigerant gas is minimized as much as possible, and at the same time, the pressure loss of the refrigerant gas is minimized as much as possible and the efficiency of the entire system is improved, having high popularization value and use effect.

[0029] Working principle: During the upward movement of the mixed material, since the lubricating oil entrained in the mixture is heavier than the refrigerant gas, when the mixture rotates, a centrifugal force is generated to cause most of the oil droplets to be thrown out radially and impact on the surface of the first mesh cylinder 6. The heavier lubricating oil droplets drip down along the surface of the first mesh cylinder 6 into the separator body 1, while the smaller droplets can, with the rotation of the first mesh cylinder 6, be thrown out of the first mesh cylinder 6 again under the action of the centrifugal force, thus impacting on the surface of the fixed cylinder 5, causing the droplets to gradually drip down along the surface of the fixed cylinder 5 again. During this process, part of the refrigerant gas is discharged through the through holes in the upper part of the second mesh cylinder 8, part of the refrigerant gas collides with the inner wall of the first mesh cylinder 6, part of the refrigerant gas passes through the holes in the first mesh cylinder 6 and then collides with the inner wall of the fixed cylinder 5. After two collisions with the inner walls of the first mesh cylinder 6 and the fixed cylinder 5, the direction of the refrigerant gas changes, and thus the fine oil droplets and oil mist mixed in the refrigerant gas are separated. Finally, the refrigerant gas enters the exhaust pipe 2 through the fixed cylinder 5 for discharge.

[0030] The embodiments of the present utility model have been described in detail above in conjunction with the accompanying drawings. However, the present utility model is not limited to the above embodiments. Within the scope of knowledge possessed by those of ordinary skill in the art in the said technical field, various changes can be made without departing from the gist of the present utility model.

Claims

1. A novel low pressure loss and high performance centrifugal oil separator, comprising a separator body (1), characterized in that: The surface of the separator body (1) is fixedly connected to a feed pipe (3) that passes through the surface of the separator body (1); the cross section of the feed pipe (3) is L-shaped; the top of the separator body (1) is fixedly connected to an exhaust pipe (2) that is connected to the interior of the separator body (1); a drive ring (11) is provided inside the separator body (1); the feed pipe (3) passes through the surface of the drive ring (11) and is rotatably connected to the interior of the drive ring (11); the surface of the drive ring (11) is fixedly connected to an injection cap (13); the injection cap The cross section of (13) is trapezoidal, the surface of the injection cover (13) is provided with discharge grooves (14) arranged at equal intervals, the surface of the injection cover (13) is fixedly connected to a conical connecting cylinder (9), the surface of the connecting cylinder (9) is fixedly connected to a conical spiral blade (7), the surface of the connecting cylinder (9) is rotatably connected to a second conical net cylinder (8) similarly, the surface of the second net cylinder (8) is provided with holes penetrating the surface of the second net cylinder (8), and the inner wall of the second net cylinder (8) is slidably connected to the surface of the spiral blade (7).

2. According to claim 1, a new type of low pressure loss and high performance centrifugal oil separator is characterized by: A rotating ring (18) is fixedly connected to the bottom of the second net cylinder (8), and the inner wall of the rotating ring (18) is slidably connected to the inner wall of the driving ring (11).

3. According to claim 1, a new type of low pressure loss and high performance centrifugal oil separator is characterized by: The outer surface of the second net cylinder (8) is fixedly connected to the first net cylinder (6), and holes are also provided on the surface of the first net cylinder (6). One end of the exhaust pipe (2) located inside the separator body (1) is fixedly connected to the fixed cylinder (5).

4. According to claim 1, a novel low pressure loss and high performance centrifugal oil separator is characterized in that: The inner wall of the separator body (1) is rotatably connected to a rotating disk (10), the inner wall of the surface of the rotating disk (10) is fixedly connected to a connecting rod (12), the inner wall of the rotating disk (10) is fixedly connected to an inner gear ring (16), a motor (4) is mounted on the separator body (1), the output end of the motor (4) passes through the bottom of the separator body (1) and is rotatably connected to the inside of the separator body (1), the output end of the motor (4) is fixedly connected to a gear (15), and the surface of the gear (15) is meshingly connected to the inner wall of the inner gear ring (16).

5. According to claim 4, a new type of low pressure loss and high performance centrifugal oil separator is characterized in that: The surface of the driving ring (11) is also fixedly connected to a gear (15), and the inner wall of the rotating ring (18) is also fixedly connected to an inner gear ring (16); the surface of the gear (15) on the driving ring (11) is meshingly connected with the inner wall of the inner gear ring (16) on the inner wall of the rotating ring (18).

6. A novel low pressure loss and high performance centrifugal oil separator according to claim 4, characterized in that: A connecting rod (12) is fixedly connected to the inner wall of the rotating disk (10), and one end of the connecting rod (12) away from the rotating disk (10) is fixedly connected to the surface of the rotating ring (18).

7. According to claim 1, a new type of low pressure loss and high performance centrifugal oil separator is characterized by: The bottom of the separator body (1) is fixedly connected to an oil outlet pipe (17) which is communicated with the interior of the separator body (1).

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