Oil and gas separation device, condenser and air conditioner

Abstract

The present invention discloses an oil-gas separation device and a condenser, the oil-gas separation device comprising: a first separation chamber; an air inlet pipe, comprising an air outlet connected to the first separation chamber, the air outlet being used to output the gas to be separated from the oil and gas to the first separation chamber; a first separation plate, used to separate the oil and gas from the gas, arranged in the first separation chamber and dividing the first separation chamber into a first sub-separation chamber and a second sub-separation chamber respectively located on both sides thereof, comprising a non-porous plate portion and a porous plate portion with a plurality of uniform air holes located on the side of the non-porous plate portion, the non-porous plate portion facing the air outlet so that the gas flowing out of the air outlet hits the non-porous plate portion and then flows toward the porous plate portion, and enters the second sub-separation chamber through the plurality of uniform air holes to perform oil-gas separation again.

Description

Technical Field

[0001] The invention relates to the technical field of refrigeration and air-conditioning systems, and in particular to an oil-gas separation device, a condenser and an air conditioner. Background Art

[0002] The condenser is one of the four major components of the refrigeration and air conditioning system. Its function is to condense the high-temperature and high-pressure gas-phase refrigerant discharged from the compressor into a medium-temperature and high-pressure liquid-phase refrigerant. In a screw compressor, the rotors need to be lubricated with refrigeration oil to reduce the noise of the compressor. At the same time, the refrigeration oil can reduce gas leakage during the rotor meshing process and improve the performance of the compressor. Therefore, during the actual operation of the screw unit, the gas discharged from the compressor includes tiny droplets of refrigeration oil in addition to the gas-phase refrigerant. In screw units, an external oil-gas separation device is often used to separate the gas-phase refrigerant and oil discharged from the compressor. The separated oil returns to the compressor oil tank for continued liquid spray lubrication.

[0003] If the separation efficiency of the oil-gas separation device is low, the oil may enter the refrigerant cycle and adhere to the heat exchange tube wall of the evaporator, condenser and other components, forming an oil film that hinders heat exchange, reducing the heat transfer efficiency of the heat exchanger and the energy efficiency of the unit. At the same time, lack of oil in the compressor will also lead to lack of lubrication between parts, which is easy to damage the compressor. Summary of the invention

[0004] The object of the present invention is to provide an oil-gas separation device with good oil-gas separation effect and a condenser and an air conditioner using the oil-gas separation device.

[0005] The first aspect of the present invention discloses an oil-gas separation device, comprising:

[0006] A first separation chamber;

[0007] an air inlet pipe, comprising an air outlet communicated with the first separation chamber, the air outlet being used to output the gas to be separated from the oil and gas to the first separation chamber;

[0008] The first separation plate is used for separating oil and gas from the gas, is arranged in the first separation chamber and divides the first separation chamber into a first sub-separation chamber and a second sub-separation chamber respectively located on both sides thereof, and includes a non-porous plate portion and a porous plate portion with a plurality of gas-distributing holes located on the side of the non-porous plate portion, the non-porous plate portion faces the gas outlet so that the gas flowing out of the gas outlet hits the non-porous plate portion and then flows toward the porous plate portion, and enters the second sub-separation chamber through the plurality of gas-distributing holes for oil and gas separation again.

[0009] In some embodiments, the orifice plate portion is configured such that: the farther the distance between the plurality of air balancing holes and the non-porous plate portion is, the larger the aperture of the air balancing holes is.

[0010] In some embodiments, the orifice plate portion is configured such that the farther the plurality of air balancing holes are from the non-porous plate portion, the smaller the spacing between the air balancing holes.

[0011] In some embodiments, the first separation plate is a long strip plate, the non-porous plate portion is located in the middle of the long strip plate, and the first separation plate includes two perforated plate portions symmetrically distributed on both sides of the non-porous plate portion.

[0012] In some embodiments, it also includes a bottom plate located below the first separation plate, the bottom plate forming part of the cavity wall of the first separation chamber, the height of the bottom plate is gradually reduced along the flow direction of the gas from the first sub-separation chamber to the second sub-separation chamber, and the bottom plate includes a first plate portion for forming the first sub-separation chamber and a second plate portion for forming the second sub-separation chamber, a first oil passage for the oil in the first sub-separation chamber to flow through is provided between the first separation plate and the bottom plate, and a second oil passage for the oil in the second sub-separation chamber to flow through is provided at the lower end of the bottom plate.

[0013] In some embodiments, it also includes a second separation plate located on the side of the first separation plate away from the air outlet of the air inlet pipe, the second separation plate forms a partial cavity wall of the first separation chamber, the second separation plate is configured to receive the impact of the gas entering the second sub-separation chamber, the second plate portion is arranged between the first separation plate and the second separation plate and the second plate portion is provided with a plurality of first ventilation holes, and the plurality of first ventilation holes are configured to be used for the gas to pass through after impacting the second separation plate.

[0014] In some embodiments, it also includes a second separation chamber located below the first separation chamber and connected to the multiple first air vents. The oil-gas separation device also includes a third separation plate located below the bottom plate. The third separation plate forms part of the cavity wall of the second separation chamber and is configured to: accept the impact of gas passing through the multiple first air vents, and the height of the third separation plate is gradually lowered along the flow direction of the gas after impacting the third separation plate; the oil-gas separation device also includes a third oil passage provided at the lower end of the third separation plate for the oil to flow through the third separation plate.

[0015] In some embodiments, it also includes a fourth separation plate arranged between the bottom plate and the third separation plate, the fourth separation plate forming a partial cavity wall of the second separation chamber, the fourth separation plate is provided with a plurality of second air holes for the gas in the second separation chamber to flow through, and the end of the fourth separation plate in contact with the third separation plate is provided with a fourth oil passage for the oil in the second separation chamber to flow through.

[0016] In some embodiments, the flow area of ​​the second separation chamber gradually increases along the flow direction of the gas after hitting the third separation plate.

[0017] In some embodiments, it also includes an oil collecting chamber located below the third separation plate and connected to the third oil passage, and a third separation chamber located above the third separation plate and connected to the second air vent, and the top of the third separation chamber is provided with an oil-gas separation device outlet for outputting gas that completes oil-gas separation.

[0018] In some embodiments, the oil-gas separation device further comprises an oil filter disposed in the third separation chamber at the outlet of the oil-gas separation device, and the oil filter is configured to separate oil and gas from the gas after impacting the third separation plate.

[0019] In some embodiments, the first separation plate is disposed in a vertical direction, and the air outlet faces the imperforate plate portion.

[0020] A second aspect of the present invention discloses a condenser, comprising any one of the oil-gas separation devices.

[0021] A third aspect of the present invention discloses an air conditioner, comprising any one of the oil-gas separation devices.

[0022] Based on the oil-gas separation device provided by the present invention, the first sub-separation chamber and the second sub-separation chamber are provided to perform multiple oil-gas separations on the gas containing oil droplets, so that the oil-gas separation effect can be improved. At the same time, by providing a first separation plate with a non-porous plate portion and a perforated plate portion with multiple uniform air holes, during oil-gas separation, the gas will first impact the non-porous plate portion of the first separation portion and collide with the non-porous plate portion, and the collision can achieve effective initial oil-gas separation, and then the gas after the initial oil-gas separation will flow along the first separation plate to the uniform air holes of the perforated plate portion, and enter the second sub-separation chamber after being uniformly gasified under the action of the uniform air holes for oil-gas separation again, and before the second oil-gas separation, the gas will collide with the non-porous plate portion and the uniform air of the uniform air holes, and the gas flow rate will decrease, and in addition, the gas after uniform air flows more uniformly, which will further improve the effect of the second oil-gas separation in the second sub-separation chamber.

[0023] Further features and advantages of the present invention will become apparent from the following detailed description of exemplary embodiments of the present invention with reference to the attached drawings. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] The drawings described herein are used to provide a further understanding of the present invention and constitute a part of this application. The exemplary embodiments of the present invention and their descriptions are used to explain the present invention and do not constitute an improper limitation of the present invention. In the drawings:

[0025] Figure 1is a structural schematic diagram of a condenser according to an embodiment of the present invention;

[0026] Figure 2 for Figure 1 A schematic structural diagram of the condenser from another angle shown;

[0027] Figure 3 for Figure 1 A schematic structural diagram of the first separation plate shown;

[0028] Figure 4 for Figure 1 A schematic diagram of the structure of the bottom plate shown;

[0029] Figure 5 for Figure 1 A schematic structural diagram of the third separation plate shown;

[0030] Figure 6 for Figure 1 A schematic structural diagram of a fourth separation plate shown;

[0031] Figure 7 for Figure 1 The structural schematic diagram of the air-oil baffle plate is shown. DETAILED DESCRIPTION

[0032] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all the embodiments. The following description of at least one exemplary embodiment is actually only illustrative and is by no means intended to limit the present invention and its application or use. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0033] Unless otherwise specifically stated, the relative arrangement of the parts and steps described in these embodiments, numerical expressions and numerical values ​​do not limit the scope of the present invention. At the same time, it should be understood that, for ease of description, the sizes of the various parts shown in the accompanying drawings are not drawn according to the actual proportional relationship. The technology, method and equipment known to ordinary technicians in the relevant field may not be discussed in detail, but in appropriate cases, the technology, method and equipment should be regarded as a part of the authorization specification. In all examples shown and discussed here, any specific value should be interpreted as being merely exemplary, rather than as a limitation. Therefore, other examples of exemplary embodiments may have different values. It should be noted that similar reference numerals and letters represent similar items in the following drawings, so once a certain item is defined in an accompanying drawing, it does not need to be further discussed in subsequent drawings.

[0034] For ease of description, spatially relative terms such as "above", "above", "on the upper surface of", "above", etc. may be used here to describe the spatial positional relationship between a device or feature and other devices or features as shown in the figure. It should be understood that spatially relative terms are intended to include different orientations of the device in use or operation in addition to the orientation described in the figure. For example, if the device in the accompanying drawings is inverted, the device described as "above other devices or structures" or "above other devices or structures" will be positioned as "below other devices or structures" or "below other devices or structures". Thus, the exemplary term "above" can include both "above" and "below". The device can also be positioned in other different ways (rotated 90 degrees or in other orientations), and the spatially relative descriptions used here are interpreted accordingly.

[0035] like Figure 1 and Figure 2 As shown, the oil-gas separation device of this embodiment includes a first separation chamber, an air inlet pipe 6 and a first separation plate 1. In the following embodiments, the lower side refers to the side where the bottom of the oil-gas separation device is located along the vertical direction when the oil-gas separation device is working normally, and relative to the lower side, the upper side refers to the side where the top of the oil-gas separation device is located along the vertical direction when the oil-gas separation device is working normally.

[0036] The air inlet pipe 6 includes an air outlet 61 communicated with the first separation chamber, and the air outlet 61 is used to output the gas to be separated from the oil and gas to the first separation chamber.

[0037] The first separation plate 1 is used for separating oil and gas from gas. The first separation plate 1 is arranged in the first separation chamber and the first separation chamber is divided into a first sub-separation chamber 101 and a second sub-separation chamber 102 respectively located on both sides of the first separation plate 1 .

[0038] In the embodiment shown in the figure, the gas outlet 61 of the gas inlet pipe 6 is in communication with the first sub-separation chamber 101 .

[0039] like Figure 3 As shown, the first separation plate 1 includes a non-porous plate portion 11 and a perforated plate portion 121 having a plurality of uniform air holes 1211 located on the side of the non-porous plate portion 11. Figure 1 As shown, the imperforate plate portion 11 faces the gas outlet 61 so that the gas flowing out of the gas outlet 61 hits the imperforate plate portion 11 and then flows toward the orifice plate portion 121, and then enters the second sub-separation chamber 102 through a plurality of gas equalization holes 1211 for oil-gas separation again. A collision device may be provided in the second sub-separation chamber 102 to collide with the gas for oil-gas separation again, or a filter device may be provided to absorb and filter the oil droplets in the gas for oil-gas separation again.

[0040] In such Figure 1 and Figure 2 In the illustrated embodiment, the oil-gas separation device is built into the condenser. In some embodiments not shown in the drawings, the oil-gas separation device may also be built into other components, or externally placed on the condenser or other components. The oil-gas separation device is not arranged on other components such as the condenser, but is self-contained and independently arranged.

[0041] In the oil-gas separation device of this embodiment, after the gas containing tiny oil droplets enters the first sub-separation chamber 101 through the air inlet pipe 6 and the air outlet 61, it first collides with the non-porous plate portion 11 of the first separation plate 1, and the gas is separated from some oil droplets and oil gas through the collision. The separated gas then flows along the first separation plate 1 to the perforated plate portion 121, and then enters the second sub-separation chamber after being evenly distributed through multiple air equalizing holes 1211 to undergo oil-gas separation again.

[0042] In this embodiment, the first sub-separation chamber 101 and the second sub-separation chamber 102 are provided to perform multiple oil-gas separations on the gas containing tiny oil droplets, so that the oil-gas separation effect can be improved. At the same time, by providing the first separation plate 1 with the imperforate plate portion 11 and the orifice plate portion 121, during the oil-gas separation, the gas will first impact the imperforate plate portion 11 of the first separation portion and collide with the imperforate plate portion 11, and the collision can achieve effective initial oil-gas separation. After the initial oil-gas separation, the gas will enter the second sub-separation chamber 102 for oil-gas separation again after the uniform gas deceleration effect of the uniform gas hole 1211. The gas entering the second sub-separation chamber 102 has been decelerated by the collision with the imperforate plate portion 11 and has been subjected to the uniform gas and deceleration effect of the uniform gas hole 1211 before entering, and the effect of the second oil-gas separation of the gas in the second sub-separation chamber 102 will be effectively improved.

[0043] In some embodiments, Figure 3 As shown, the orifice plate portion 121 is configured as follows: the farther the distance between the multiple gas equalizing holes 1211 and the imperforate plate portion 11 is, the larger the aperture of the gas equalizing holes 1211 is. After the gas flowing out of the gas outlet 61 hits the imperforate plate portion 11, it flows to the orifice plate portion 121 on the side of the imperforate plate portion 11. At the same time, due to the provision of the gas equalizing holes 1211, as the gas flows farther, the flow rate of the gas decreases, and the flow rate also decreases. The arrangement of this embodiment can improve the gas equalizing effect when the gas passes through the first separation plate 1 and enters the second sub-separation chamber 102, which helps to further improve the effect of the gas in the second sub-separation chamber 102 for oil and gas separation.

[0044] In some embodiments, Figure 3As shown, the first separation plate 1 is a long strip plate, the imperforate plate portion 11 is located in the middle of the long strip plate, and the first separation plate 1 includes two orifice plate portions 121 symmetrically distributed on both sides of the imperforate plate portion 11. The first separation plate 1 is set as a long strip plate with a symmetrical structure, which has a simple structure and is easy to manufacture. At the same time, the orifice plate portions 121 symmetrically distributed on both sides are set. When the gas flows to both sides after hitting the imperforate plate portion 11, the symmetrical orifice plate portions can further improve the gas uniformity effect.

[0045] In some embodiments, Figure 1 and Figure 4 As shown, the oil-gas separation device also includes a bottom plate 5 located below the first separation plate 1, the bottom plate 5 forms part of the cavity wall of the first separation chamber, and the height of the bottom plate 5 is gradually reduced along the flow direction of the gas from the first sub-separation chamber 101 to the second sub-separation chamber 102, and the bottom plate 5 includes a first plate portion for forming the first sub-separation chamber 101 and a second plate portion for forming the second sub-separation chamber 102. A first oil passage 501 for the oil in the first sub-separation chamber 101 to flow through is provided between the first separation plate 1 and the bottom plate 5, and a second oil passage 502 for the oil in the second sub-separation chamber 102 to flow through is provided at the lower end of the bottom plate 5 at a lower position. After the bottom plate 5 is tilted, the lower end refers to the lower end of the bottom plate 5. In the arrangement of this embodiment, the bottom plate 5 can receive the oil droplets separated after the gas collides with the first separation plate 1. Since the bottom plate 5 is arranged obliquely, the oil droplets on the bottom plate 5 or the oil liquid formed by the oil droplets can flow to the lower end of the bottom plate 5 under the action of gravity. At the same time, when the oil droplets flow on the second plate portion in the second sub-separation chamber 102, since the inclination of the second plate portion follows the flow direction of the gas in the second sub-separation chamber 102, the oil droplets on the second plate portion can be further accelerated to flow and gather to the second oil passage 502 at the lower end of the bottom plate 5 under the action of the gas, thereby improving the gathering effect of the oil droplets. The first oil passage 501 can be as shown in FIG. Figure 3 As shown, an oil passage groove is provided on the side of the first separation plate 1 close to the bottom plate 5. As shown in the figure, the first oil passage 501 includes a plurality of oil passage grooves arranged at intervals. The second oil passage 502 can be as shown in FIG. Figure 4 As shown, an oil passage groove is provided on the side of the bottom plate 5 at the lower end. As shown in the figure, the second oil passage 502 includes a plurality of oil passage grooves arranged at intervals.

[0046] In some embodiments, Figure 1As shown, the oil-gas separation device further includes a second separation plate 2 located on the side of the first separation plate 1 away from the air outlet 61 of the air inlet pipe 6. The second separation plate 2 is a non-porous plate. The second separation plate 2 forms part of the cavity wall of the first separation chamber. The second separation plate 2 is configured to receive the impact of the gas entering the second sub-separation chamber 102. The gas entering the second sub-separation chamber 102 is separated from the oil and gas again after impacting the second separation plate 2. The second plate portion is arranged between the first separation plate 1 and the second separation plate 2, and a plurality of first vents 51 are arranged on the second plate portion. The plurality of first vents 51 are configured to pass the gas after impacting the second separation plate 2. After the gas impacts the second separation plate 2, the oil and gas are separated, and the oil droplets slide down to the second oil passage 502. After the gas changes direction, the gas impacts the part of the second plate portion without the first vents 51 and produces oil-gas separation again, and finally flows downstream through the first vents 51.

[0047] In some embodiments, Figure 1 As shown, the oil-gas separation device further includes a second separation chamber 200 located below the first separation chamber and communicating with the plurality of first vents 51. Figure 1 and Figure 5 As shown, the oil-gas separation device further includes a third separation plate 3 located below the bottom plate 5, and the third separation plate 3 forms part of the cavity wall of the second separation cavity 200. The third separation plate 3 is configured to: be used to receive the impact of the gas passing through the plurality of first vents 51, and the third separation plate 3 is arranged with a height gradually decreasing along the flow direction of the gas after impacting the third separation plate 3. The oil-gas separation device further includes a third oil passage 503 for the oil passing through the third separation plate 3, which is arranged at a lower end of the third separation plate 3 and is used for the oil to flow through the third separation plate 3. In the embodiment shown in the figure, the third oil passage 503 includes a plurality of oil passage grooves arranged at intervals. In this embodiment, a second separation chamber is set up. After the gas enters the second separation chamber through the first air hole 51, it collides with the third separation plate 3 to further separate the oil and gas. Since the third separation plate 3 is set at an angle, the oil droplets generated by the oil and gas separation and the oil droplets flowing from the second oil passage 502 to the third separation plate 3 can be accelerated to flow toward the third oil passage 503 at the lower end of the third separation plate 3 under the action of gravity. At the same time, the flow of the gas after colliding with the third separation plate 3 can further accelerate the flow and convergence of the oil droplets in the direction of the third oil passage 503.

[0048] In some embodiments, Figure 1 and Figure 6As shown, the oil-gas separation device further includes a fourth separation plate 4 disposed between the bottom plate 5 and the third separation plate 3, the fourth separation plate 4 forming part of the cavity wall of the second separation chamber 200, a plurality of second vents 41 for the gas in the second separation chamber 200 to flow through are provided on the fourth separation plate 4, and a fourth oil passage 504 for the oil in the second separation chamber 200 to flow through is provided at the end of the fourth separation plate 4 contacting the third separation plate 3. In this embodiment, after the passing gas hits the third separation plate 3, it will then flow downstream through the fourth separation plate 4. When passing through the fourth separation plate 4, the gas that hits the non-porous part of the fourth separation plate 4 will collide again, which will further separate the oil and gas, further improving the effect of oil-gas separation. At the same time, the oil droplets flowing on the third separation plate 3 can flow through the fourth oil passage 504. In the embodiment shown in the figure, the oil droplets on the third separation plate 3 first flow through the fourth oil passage 504, and then pass through the third oil passage 503. The oil-gas separation device of the present embodiment comprises a first separation plate 1, a second separation plate 2, a third separation plate 3, a fourth separation plate 4, a bottom plate 5, a first separation chamber and a second separation chamber 200. The gas entering the first sub-separation chamber first collides with the first separation plate 1 for oil-gas separation, then enters the second sub-separation chamber and collides with the second separation plate 2 for oil-gas separation again, then part of the gas collides with the bottom plate 5 when passing through the bottom plate 5 for oil-gas separation again, then enters the second separation chamber and collides with the third separation plate 3 for oil-gas separation again, then passes through the fourth separation plate 4, part of the gas is separated from the fourth separation plate 4 for oil-gas separation again, and the oil-gas separation is performed through multiple collisions, and the oil-gas separation effect is good. At the same time, the bottom plate and the third separation plate inclined along the gas flow direction are arranged. Under the combined action of gravity and gas flow, the oil droplets or the oil liquid formed by the oil droplets have a good flow effect and are easy to gather. At the same time, the arrangement layout of the separation plates and the separation chambers of the oil-gas separation device is reasonable and the structure is compact.

[0049] In some embodiments, Figure 1 As shown, the flow area of ​​the second separation chamber 200 gradually increases along the flow direction of the gas after hitting the third separation plate 3. When the gas flows in the second separation chamber 200, the flow area of ​​the second separation chamber 200 gradually increases, the gas flow rate gradually decreases, and the heavier oil droplets are further separated during the deceleration process. At the same time, the oil-gas separation effect of the decelerated gas will be further improved when passing through the fourth separation plate.

[0050] In some embodiments, Figure 1 and Figure 2As shown, the oil-gas separation device also includes an oil collecting chamber 400 located below the third separation plate 3 and connected to the third oil passage 503, and a third separation chamber 300 located above the third separation plate 3 and connected to the second air vent 41. The top of the third separation chamber 300 is provided with an oil-gas separation device outlet for outputting gas that completes oil-gas separation. The oil droplets flow from the third oil passage 503 to the oil collecting chamber 400 and are gathered. The oil collecting chamber 400 is located below the third separation plate 3. In addition to the third oil passage 503 being arranged at the lower end, the third separation plate 3 is a non-porous plate. The outlet of the oil-gas separation device is at the top of the third separation chamber 300. When the gas flows out after colliding with the third separation plate 3, it will flow upward to the outlet of the oil-gas separation device. When the gas flows upward, some oil droplets will be separated from the gas under the action of gravity. The third separation plate 3 can prevent the gas from disturbing the oil droplets in the oil collecting chamber. In the embodiment shown in the figure, an oil outlet 410 for outputting the oil in the oil collecting chamber is provided below the oil collecting chamber.

[0051] In some embodiments, Figure 1 and Figure 2 As shown, the oil-gas separation device further includes an oil filter 7 disposed in the third separation chamber 300 at the outlet of the oil-gas separation device. The oil filter 7 is configured to separate oil and gas from the gas after it hits the third separation plate 3. When the oil filter 7 is provided, when the gas passes through the oil filter 7, oil droplets will be adsorbed by the oil filter 7, thereby separating the gas from oil and gas again. At the same time, since the oil filter 7 is located at the top, the gas will produce oil and gas separation under the action of gravity when it flows to the oil filter 7.

[0052] In such Figure 1 and Figure 2 In the embodiment shown, the oil-gas separation device also includes a top sealing plate 93, an air-blocking and oil-passing plate 81, a front end plate 94 and an axial end plate 91. The first separation chamber is surrounded by the front end plate 94, the second separation plate 2, the top sealing plate 93 located at the top, the bottom plate 5 located at the bottom and two axial end plates 91 located at both ends of the top sealing plate 93. The second separation chamber 200 is surrounded by the fourth separation plate 4, the second separation plate 2, the bottom plate 5 located at the top, the third separation plate 3 located at the bottom and two axial end plates 91 located at both ends of the bottom plate 5. In the embodiment shown in the figure, two air-blocking and oil-passing plates 81 arranged up and down are further provided between the top sealing plate 93 and the inner wall of the oil-gas separation device. Figure 7 As shown, a plurality of oil passing grooves are provided on both sides of the air-oil blocking plate 81. The air-oil blocking plate 81 is used to pass the oil droplets generated when the gas passes through the oil filter or during the oil-gas separation during the rising process, and return the oil droplets to the oil collecting chamber.

[0053] In some embodiments, Figure 1As shown, the first separation plate 1 is arranged in the vertical direction, and the gas outlet 61 is directly opposite to the imperforate plate portion 11. With this arrangement, the gas flowing out of the gas outlet directly impacts the imperforate plate portion 11 in the horizontal direction, and the impact effect is good. The oil droplets separated by the impact flow downward in the vertical direction under the action of gravity, and the flow direction of the oil droplets is perpendicular to the direction of the horizontal impact of the gas, which reduces the interference of the flow direction of the gas on the separation and flow of the oil droplets, and helps to improve the oil-gas separation effect of the gas impacting the first separation plate 1.

[0054] In some embodiments, a condenser is also disclosed, comprising any of the above-mentioned oil-gas separation devices.

[0055] In some embodiments, an air conditioner is also disclosed, comprising any of the above-mentioned oil-gas separation devices.

[0056] Finally, it should be noted that the above embodiments are only used to illustrate the technical solution of the present invention rather than to limit it. Although the present invention has been described in detail with reference to the preferred embodiments, ordinary technicians in the field should understand that the specific implementation methods of the present invention can still be modified or some technical features can be replaced by equivalents without departing from the spirit of the technical solution of the present invention, which should be included in the scope of the technical solution for protection of the present invention.

Claims

1. An oil-gas separation device, characterized in that: include: A first separation chamber; An air inlet pipe (6), comprising an air outlet (61) in communication with the first separation chamber, the air outlet (61) being used to output the gas to be separated from the oil and gas to the first separation chamber; A first separation plate (1) is used for separating oil and gas from the gas, is arranged in the first separation chamber and divides the first separation chamber into a first sub-separation chamber (101) and a second sub-separation chamber (102) located on both sides thereof, and comprises a non-porous plate portion (11) and a porous plate portion (121) located on the side of the non-porous plate portion (11) and having a plurality of uniform air holes (1211), wherein the non-porous plate portion (11) faces the gas outlet (61) so that the gas flowing out of the gas outlet (61) hits the non-porous plate portion (11) and then flows toward the porous plate portion (121), and enters the second sub-separation chamber (102) through the plurality of uniform air holes (1211) to be separated from the oil and gas again; the oil and gas separation device also comprises a bottom plate (5) located below the first separation plate (1), The bottom plate (5) forms part of the cavity wall of the first separation cavity, the bottom plate (5) comprises a second plate portion for forming the second sub-separation cavity (102), the oil-gas separation device further comprises a second separation plate (2) located on a side of the first separation plate (1) away from the gas outlet (61) of the gas inlet pipe (6), the second separation plate (2) forms part of the cavity wall of the first separation cavity, the second separation plate (2) is configured to receive the impact of gas entering the second sub-separation cavity (102), the second plate portion is arranged between the first separation plate (1) and the second separation plate (2), and the second plate portion is provided with a plurality of first vent holes (51), the plurality of first vent holes (51) being configured to be used for passing the gas after impacting the second separation plate (2).

2. The oil-gas separation device according to claim 1, characterized in that: The orifice plate portion (121) is configured such that: the greater the distance between the plurality of air balancing holes (1211) and the non-porous plate portion (11), the larger the aperture of the air balancing holes (1211).

3. The oil-gas separation device according to claim 1, characterized in that: The orifice plate portion (121) is configured such that the greater the distance between the plurality of air balancing holes (1211) and the non-porous plate portion (11), the smaller the spacing between the air balancing holes (1211).

4. The oil-gas separation device according to any one of claims 1 to 3, characterized in that: The first separation plate (1) is a long strip plate, the non-porous plate portion (11) is located in the middle of the long strip plate, and the first separation plate (1) comprises two perforated plate portions (121) symmetrically distributed on both sides of the non-porous plate portion (11).

5. The oil-gas separation device according to claim 1, characterized in that: The height of the bottom plate (5) is gradually reduced along the flow direction of the gas from the first sub-separation chamber (101) to the second sub-separation chamber (102), and the bottom plate (5) comprises a first plate portion for forming the first sub-separation chamber (101), a first oil passage (501) for the oil in the first sub-separation chamber (101) to flow through is provided between the first separation plate (1) and the bottom plate (5), and a second oil passage (502) for the oil in the second sub-separation chamber (102) to flow through is provided at a lower end of the bottom plate (5).

6. The oil-gas separation device according to claim 1, characterized in that: The oil-gas separation device further comprises a second separation chamber (200) located below the first separation chamber and connected to the plurality of first vent holes (51); the oil-gas separation device further comprises a third separation plate (3) located below the bottom plate (5); the third separation plate (3) forms part of the cavity wall of the second separation chamber (200) and is configured to: receive the impact of gas passing through the plurality of first vent holes (51), and the height of the third separation plate (3) is gradually reduced along the flow direction of the gas after impacting the third separation plate (3); the oil-gas separation device further comprises a third oil passage (503) provided at the lower end of the third separation plate (3) for the oil passing through the third separation plate (3) to flow through.

7. The oil-gas separation device according to claim 6, characterized in that: It also includes a fourth separation plate (4) arranged between the bottom plate (5) and the third separation plate (3), the fourth separation plate (4) forming part of the cavity wall of the second separation cavity (200), the fourth separation plate (4) being provided with a plurality of second vent holes (41) for the gas in the second separation cavity (200) to flow through, and an end portion of the fourth separation plate (4) in contact with the third separation plate (3) being provided with a fourth oil passage (504) for the oil in the second separation cavity (200) to flow through.

8. The oil-gas separation device according to claim 7, characterized in that: The flow area of ​​the second separation chamber (200) gradually increases along the flow direction of the gas after impacting the third separation plate (3).

9. The oil-gas separation device according to claim 7, characterized in that: It also comprises an oil collecting chamber (400) located below the third separation plate (3) and connected to the third oil passage (503), and a third separation chamber (300) located above the third separation plate (3) and connected to the second vent hole (41), wherein the top of the third separation chamber (300) is provided with an oil-gas separation device outlet for outputting gas after oil-gas separation.

10. The oil-gas separation device according to claim 9, characterized in that: The oil-gas separation device further comprises an oil filter (7) arranged in the third separation chamber (300) and located at the outlet of the oil-gas separation device, wherein the oil filter (7) is configured to separate oil and gas from the gas after it impacts the third separation plate (3).

11. The oil-gas separation device according to any one of claims 1 to 3, 5 to 9, characterized in that: The first separation plate (1) is arranged in a vertical direction, and the air outlet (61) is directly opposite to the imperforate plate portion (11).

12. A condenser, characterized in that: It comprises the oil-gas separation device as claimed in any one of claims 1 to 11.

13. An air conditioner, characterized in that: It comprises the oil-gas separation device as claimed in any one of claims 1 to 11.

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