Cyclone type oil separator

Abstract

The cyclone type oil separator comprises a hollow cylindrical barrel, the upper end and the lower end of the barrel are sealed through an upper sealing head and a lower sealing head respectively, the side wall of the barrel is communicated with an oil separator air inlet pipe and an oil separator oil outlet pipe, and an octagonal oil collecting plate parallel to the cross section of the barrel is arranged in the barrel. The lower surface of the oil collecting plate is connected with an anti-vortex supporting plate, gaps are reserved between the oil collecting plate and the side wall of the barrel and between the anti-vortex supporting plate and the side wall of the barrel, and the side edge of the anti-vortex supporting plate is connected with the side wall of the barrel. According to the male cyclone type oil separator, the octagonal oil collecting plate is adopted and is supported by the two anti-vortex supporting plates, so that the separation efficiency is obviously improved.

Description

TECHNICAL FIELD

[0001] The present disclosure relates to the technical field of refrigeration machinery, in particular to a cyclone oil separator. BACKGROUND

[0002] During the operation of a refrigeration unit, the high-temperature and high-pressure gas-liquid mixture discharged by the compressor generally contains oil droplets. In order to prevent excessive oil from entering the refrigeration system with the refrigerant and causing the compressor to operate without oil, thereby affecting the compression efficiency, the unit is provided with an oil separator to separate the oil in the gas-liquid mixture and return it to the compressor. The working principle of the cyclone oil separator is to constrain the inlet gas-liquid mixture by the circular inner wall of the oil separator, so that it makes circular motion, and then promotes the gas-liquid mixture to generate centrifugal force in the process of rotation, so that the oil droplets with higher density are thrown to the inner wall of the oil separator, and then a large amount of oil droplets flow into the oil collection section along the inner wall of the oil separator under the influence of gravity to achieve the effect of gas-liquid separation. At present, the structural design of the cyclone oil separator of various manufacturers is similar, the separation efficiency is low, and the operation of the refrigeration unit is affected. SUMMARY

[0003] The embodiment of the present application provides a cyclone oil separator, which adopts an octagonal oil collection plate and is supported by two anti-vortex support plates, thereby obviously improving the separation efficiency and solving the problem of low efficiency of the existing oil separator.

[0004] The embodiment of the present application provides a cyclone oil separator, which comprises a hollow cylindrical barrel, the upper and lower ends of the barrel are respectively closed by an upper end cover and a lower end cover, the side wall of the barrel is communicated with an oil separator inlet pipe and an oil separator oil outlet pipe, an octagonal oil collection plate parallel to the cross section of the barrel is arranged in the barrel, the lower surface of the oil collection plate is connected with an anti-vortex support plate, gaps are respectively left between the oil collection plate, the anti-vortex support plate and the side wall of the barrel, and the side edge of the anti-vortex support plate is connected with the side wall of the barrel.

[0005] In the cyclone oil separator provided by at least one embodiment of the present disclosure, the oil separator inlet pipe is tangentially connected with the side wall of the barrel.

[0006] In the cyclone oil separator provided by at least one embodiment of the present disclosure, the upper end cover is provided with a hole in the middle and is connected with an oil separator outlet pipe, the oil separator outlet pipe extends into the inside of the barrel, and the oil collection plate is arranged below the oil separator outlet pipe.

[0007] In the cyclone oil separator provided by at least one embodiment of the present disclosure, the anti-vortex support plate equally divides the space of the section of the barrel connected therewith.

[0008] In the cyclone oil separator provided by at least one embodiment of the present disclosure, the oil separator oil outlet pipe is tangentially connected with the side wall of the barrel.

[0009] According to at least one embodiment of the present disclosure, the cyclone oil separator is provided with an oil separator outlet pipe arranged in the center of the upper head.

[0010] According to at least one embodiment of the present disclosure, the cyclone oil separator is provided with one or two oil separator inlet pipes parallel to the circumferential section of the cylinder.

[0011] According to at least one embodiment of the present disclosure, the cyclone oil separator is provided with an oil heater sleeve between the lower head and the vortex prevention support plate.

[0012] According to at least one embodiment of the present disclosure, the cyclone oil separator is provided with an oil separator outlet pipe parallel to the circumferential section of the cylinder.

[0013] According to at least one embodiment of the present disclosure, the cyclone oil separator is provided with an oil separator outlet pipe arranged between the lower head and the vortex prevention support plate.

[0014] The one or more technical solutions provided in the embodiments of the present application have at least the following technical effects or advantages:

[0015] The oil collecting plate of the novel cyclone oil separator is octagonal, eight corners are welded to the inner wall of the cylinder, and eight edges leave a certain gap with the inner wall, which can increase the stability of the oil collecting plate and reduce vibration, and prevent oil droplets from colliding with the oil collecting plate multiple times during the rotating separation process to cause re-atomization; the vortex prevention support plate is arranged below the oil collecting plate, which can prevent the oil droplets entering the oil collecting section from continuing to move in a circular manner, thereby reducing the vortex intensity below the oil collecting plate and improving the oil-gas separation efficiency; on the other hand, it can also support and strengthen the structural strength of the oil collecting plate; the sizes of the components of the oil separator are determined through simulation optimization and improvement, and the separation efficiency is high. BRIEF DESCRIPTION OF DRAWINGS

[0016] Figure 1 is a single-inlet pipe external structure schematic diagram of a cyclone oil separator according to an embodiment of the present application;

[0017] Figure 2 is a single-inlet pipe front view structure schematic diagram of a cyclone oil separator according to an embodiment of the present application;

[0018] Figure 3 is a structure schematic diagram of an oil collecting plate and a vortex prevention support plate of a cyclone oil separator according to an embodiment of the present application;

[0019] Figure 4 is a size information schematic diagram of a single-inlet pipe cyclone oil separator in a front view direction according to an embodiment of the present application;

[0020] Figure 5 is a schematic diagram of size information in the overhead direction of a single-inlet-tube cyclone oil separator according to an embodiment of the present application;

[0021] Figure 6 is a schematic diagram of the structure of a double-inlet-tube cyclone oil separator in the front view according to an embodiment of the present application. DETAILED DESCRIPTION

[0022] The embodiment of the present application provides a cyclone oil separator to solve the problem of low efficiency of the existing oil separator, adopts an octagonal oil collecting plate, and is supported by two anti-vortex support plates, so that the separation efficiency is obviously improved.

[0023] The technical scheme in the embodiment of the present application is to solve the problem of low efficiency of the oil separator, and the general idea is as follows:

[0024] The octagonal oil collecting plate is adopted, eight corners are welded with the inner wall of the cylinder, and eight edges are left with a certain gap with the inner wall, so that the stability of the oil collecting plate is increased and vibration is reduced, and oil droplets are prevented from colliding with the oil collecting plate multiple times in the rotating separation process to cause re-atomization; the anti-vortex support plate is arranged below the oil collecting plate, which can prevent the oil droplets entering the oil collecting section from continuing to move in a circle, thereby reducing the vortex intensity below the oil collecting plate and improving the oil-gas separation efficiency; on the other hand, the anti-vortex support plate can also support and strengthen the structural strength of the oil collecting plate; the sizes of the components of the oil separator are determined through simulation optimization and improvement, and the separation efficiency is high.

[0025] In order to better understand the above technical scheme, the above technical scheme will be described in detail in combination with the drawings of the specification and the specific embodiments.

[0026] As shown in Figure 1 The cyclone oil separator in the embodiment of the present application comprises a hollow cylindrical cylinder 1, the upper and lower ends of the cylinder 1 are respectively closed by an upper head 2 and a lower head 3, the side wall of the cylinder 1 is in communication with an oil separator inlet pipe 4 and an oil separator oil outlet pipe 9, and the cylinder 1 is characterized in that: an octagonal oil collecting plate 6 parallel to the cross section of the cylinder 1 is arranged in the cylinder 1, the lower surface of the oil collecting plate 6 is connected with an anti-vortex support plate 7, the oil collecting plate 6 and the anti-vortex support plate 7 are both left with a gap with the side wall of the cylinder 1, and the side edge of the anti-vortex support plate 7 is connected with the side wall of the cylinder 1.

[0027] In this embodiment, the oil separator inlet pipe 4 is tangentially connected with the side wall of the cylinder 1.

[0028] Preferably, the anti-vortex support plate 7 equally divides the space of the section of the cylinder 1 connected therewith.

[0029] Further, the oil separator outlet pipe 5 is arranged at the center position of the upper head 2.

[0030] Exemplarily, the upper head 2 is centrally perforated and connected with the oil separator outlet pipe 5, and the oil separator outlet pipe 5 extends into the inside of the cylinder 1, and the oil collecting plate 6 is arranged below the oil separator outlet pipe 5.

[0031] The novel cyclone oil separator of the present application has the following advantages: 1. The oil collecting plate is octagonal and has a fan-shaped gap with the inner wall of the cylinder, which can reduce the impact of oil droplets on the rotating separation process as much as possible to avoid re-atomization; 2. The anti-vortex support plate arranged at the lower part of the oil collecting plate can support and fix the oil collecting plate, and can also reduce the vortex intensity at the lower part of the oil collecting plate, and realize the separation of oil and gas at the lower part of the oil collecting plate under the action of gravity; 3. The present patent technology is based on the existing disclosed cyclone oil separation patent technology, and the advantages and disadvantages of the patent technologies of various manufacturers are summarized. The diameters and sizes of the components of the oil separator and the relative positions between the components are analyzed and simulated by optimizing the fluid multiple times, and the size changes are determined after optimization analysis and calculation. Finally, a cyclone oil separator with higher separation efficiency is obtained.

[0032] Example 1

[0033] Reference Figures 1 to 3 In one specific embodiment of the present application, a cyclone oil separator is provided, which comprises a hollow cylindrical cylinder 1, the diameter of the cylinder 1 is D1, and the upper and lower ends of the cylinder 1 are respectively closed by an upper head 2 and a lower head 3. The side wall of the cylinder 1 is perforated and connected with an oil separator inlet pipe 4, the cross section of the connection between the oil separator inlet pipe 4 and the cylinder 1 is tangent, the diameter of the oil separator inlet pipe 4 is D2, and the distance between the oil separator inlet pipe 4 and the upper head 2 is H1. The side wall of the cylinder 1 is perforated and connected with an oil separator outlet pipe 9, the cross section of the connection between the oil separator outlet pipe 9 and the cylinder 1 is tangent, the diameter of the oil separator outlet pipe 9 is D4, and the distance between the oil separator outlet pipe 9 and the lower head 3 is H6. Preferably, the cylinder 1 is provided with one or two parallel oil separator inlet pipes 4. The upper head 2 is centrally perforated and connected with an oil separator outlet pipe 5, and the oil separator outlet pipe 5 extends into the inside of the cylinder 1, the diameter of the oil separator outlet pipe 5 is D3, the distance between the lower end of the oil separator outlet pipe 5 and the upper head 1 is H2, and preferably, the oil separator outlet pipe 5 is arranged at the center position of the upper head 2. The cylinder 1 is further provided with an octagonal oil collecting plate 6 parallel to the cross section thereof, the oil collecting plate 6 is arranged below the oil separator outlet pipe 5, and the distance between the lower end of the oil collecting plate 6 and the oil separator outlet pipe 5 is H3. The lower surface of the oil collecting plate 6 is connected with an anti-vortex support plate 7, the height of the anti-vortex support plate 7 is H4, the width of the anti-vortex support plate 7 is L1, the side edge of the anti-vortex support plate 7 is connected with the side wall of the cylinder 1, and the anti-vortex support plate 7 divides the space of the cylinder 1 connected therewith. An oil heater sleeve 8 for heating is arranged between the lower head 3 and the anti-vortex support plate 7, and the distance between the oil heater sleeve 8 and the lower head 3 is H5.

[0034] Reference Figure 4 , Figure 5 In one embodiment of the present application, the cyclone oil separator has an inlet pipe 4 with a distance H1 from the upper head 2, and an outlet pipe 5 with a distance H2 from the lower end of the upper head 1. Preferably, H1:H2 = 1:3.5. The oil collecting plate 6 has a distance H3 from the lower end of the outlet pipe 5, and the anti-vortex support plate 7 has a height H4. Preferably, H3:H4 = 1:1.4. The oil heater jacket 8 has a distance H5 from the lower head 3, and the oil outlet pipe 9 has a distance H6 from the lower head 3. Preferably, H5:H6 = 1:1.2.

[0035] The cylinder, inlet pipe and oil outlet pipe of the oil separator are cut by a line intersection cutting machine to ensure that the processed size meets the design requirements, and the corresponding openings on the cylinder are ensured to have accurate opening sizes. The upper and lower heads of the oil separator are precisely processed by a CNC machining center. After the anti-vortex assembly is welded and the relative positions are determined according to the design requirements, it is directly welded inside the cylinder. The outlet pipe and the upper head are welded together to ensure the size of the outlet pipe to the head. Then the inlet pipe is welded to the cylinder, and then the corresponding windows, valve seats and other accessories are welded to the cylinder and the head. Finally, the cylinder and the head are welded together.

[0036] In use of the cyclone oil separator of the present application, the high-temperature and high-speed gas-liquid mixture sprayed by the compressor enters the cylinder 1 through the inlet pipe 4 tangentially, and the high-speed mixture moves spirally downward along the inner wall of the cylinder 1. The oil in the mixture collides with the side wall of the cylinder 1 and the oil collecting plate 6, and is condensed on the oil collecting plate 6, and then drops to the bottom of the oil separator along the fan-shaped gap between the oil collecting plate 6 and the side wall of the cylinder 1. The anti-vortex support plate 7 can also prevent the high-speed gas from disturbing the oil at the bottom. The oil at the bottom is adjusted to a set temperature by the electric heating in the oil heater jacket 8, and then flows out from the oil outlet pipe 9.

[0037] Although the preferred embodiments of the present disclosure have been described, those skilled in the art can make further changes and modifications to these embodiments once they know the basic creative concept. Therefore, the appended claims are intended to be interpreted as including all changes and modifications falling within the scope of the present disclosure.

[0038] Obviously, those skilled in the art can make various modifications and variations to the present disclosure without departing from the spirit and scope of the present disclosure. Thus, if these modifications and variations of the present disclosure fall within the scope of the claims of the present disclosure and their equivalent technologies, the present disclosure also intends to include these modifications and variations.

[0039] Obviously, those skilled in the art can make various modifications and variations to the present disclosure without departing from the spirit and scope of the present disclosure. Thus, if these modifications and variations of the present disclosure fall within the scope of the claims of the present disclosure and their equivalent technologies, the present disclosure also intends to include these modifications and variations.

Claims

1. A cyclone oil separator, comprising a hollow cylindrical cylinder (1), the cylinder (1) is closed by an upper head (2) and a lower head (3) at the upper and lower ends respectively, the side wall of the cylinder (1) is communicated with an oil separator inlet pipe (4) and an oil separator oil outlet pipe (9), characterized in that: The barrel (1) is provided with an octagonal oil collecting plate (6) parallel to the cross section of the barrel (1), the lower surface of the oil collecting plate (6) is connected with a vortex prevention support plate (7), the oil collecting plate (6) and the vortex prevention support plate (7) are both provided with gaps with the side wall of the barrel (1), and the side edge of the vortex prevention support plate (7) is connected with the side wall of the barrel (1).

2. The cyclone oil separator of claim 1, wherein The oil separator inlet pipe (4) is tangentially connected with the side wall of the barrel (1).

3. The cyclone oil separator of claim 1, wherein The upper head (2) is provided with a hole in the middle and is connected with an oil separator outlet pipe (5), the oil separator outlet pipe (5) extends into the barrel (1), and the oil collecting plate (6) is arranged below the oil separator outlet pipe (5).

4. The cyclone oil separator of claim 3, wherein The vortex prevention support plate (7) divides the space of the barrel (1) connected therewith.

5. The cyclone oil separator of claim 3, wherein The oil separator outlet pipe (5) is arranged at the center of the upper head (2).

6. The cyclone oil separator of claim 2, wherein The side wall of the barrel (1) is provided with one or two oil separator inlet pipes (4) parallel to the circumferential cross section of the barrel (1).

7. The cyclone oil separator of claim 1, wherein An oil heater sleeve (8) is arranged between the lower head (3) and the vortex prevention support plate (7).

8. The cyclone oil separator according to claim 1 or 7, wherein The side wall of the barrel (1) is provided with an oil separator oil outlet pipe (9) parallel to the circumferential cross section of the barrel (1).

9. The cyclone oil separator of claim 8, wherein The oil separator oil outlet pipe (9) is arranged between the lower head (3) and the vortex prevention support plate (7).

10. The cyclone oil separator of claim 9, wherein The oil separator oil outlet pipe (9) is tangentially connected with the side wall of the barrel (1).

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