Oil separator and air conditioner

Abstract

The utility model relates to the technical field of air conditioners, and provides an oil separator and an air conditioner, the oil separator comprises a cylinder body, a separation mechanism and an air outlet branch pipe, the cylinder body is internally provided with a containing cavity, the first end of the cylinder body is provided with an air inlet, and the second end of the cylinder body is provided with an oil outlet; the separation mechanism comprises a disc body and at least two separation pipes, the disc body is arranged in the cylinder body, each separation pipe is arranged on one side, close to the oil outlet, of the disc body, one end of each separation pipe is communicated with a space, close to one side of the air inlet, of the disc body, the other end of each separation pipe is communicated with a space, close to one side of the oil outlet, of the disc body, and a plurality of through holes are formed in the side walls of the separation pipes; the first end of the air outlet branch pipe extends into the barrel and is located on the side, close to the oil outlet, of the disc body, and the second end of the air outlet branch pipe extends out of the barrel. In this way, the oil separator is arranged to be of the cylindrical structure capable of being connected to the refrigerant pipeline in series, the occupied space is small, the space around the air conditioner pipeline can be fully utilized, and layout is convenient.

Description

TECHNICAL FIELD

[0001] The utility model relates to air conditioner technical field especially relates to an oil separator and air conditioner. BACKGROUND

[0002] In the operation process of air conditioning system, the compressor will generate heat and friction, and needs lubricating oil to cool and lubricate the moving parts. However, when the compressor works, part of the lubricating oil will be discharged together with the high-pressure high-temperature gaseous refrigerant. If these lubricating oils cannot be effectively separated and enter the condenser and evaporator together with the gaseous refrigerant, the heat exchange efficiency of the condenser and evaporator will be affected, and the overall performance of the system will be reduced. Therefore, an oil separator is arranged on the exhaust side of the compressor of the air conditioning system to separate the lubricating oil in the gaseous refrigerant discharged by the compressor, and then make the gaseous refrigerant enter the condenser and evaporator.

[0003] The oil separator in the related art is generally arranged in a box type structure, which has a large volume and needs to be fixed by the bottom foot. Therefore, a special installation space needs to be reserved for the oil separator in the air conditioner, which is not conducive to the layout of the pipeline of the air conditioning system.

[0004] Therefore, how to solve the problem of large space occupied by the oil separator in the related art and the need to reserve a special installation space for it in the air conditioner has become an important technical problem to be solved by the technical personnel in the field. INVENTION CONTENTS

[0005] The utility model provides a kind of oil separator and air conditioner to solve the defect that oil separator in the related art occupies large space.

[0006] The utility model provides an oil separator, comprising:

[0007] The cylinder has an accommodating cavity inside, the first end of the cylinder is provided with an air inlet, and the second end of the cylinder is provided with an oil outlet;

[0008] The separation mechanism includes a disc body and at least two separation pipes, the disc body is arranged inside the cylinder, each separation pipe is arranged on one side of the disc body close to the oil outlet, one end of each separation pipe is communicated with the space on the side of the disc body close to the air inlet, the other end of each separation pipe is communicated with the space on the side of the disc body close to the oil outlet, and a plurality of through holes are arranged on the side wall of the separation pipe;

[0009] The air outlet branch pipe extends to the inside of the cylinder and is located on the side of the disc body close to the oil outlet at the first end, and extends to the outside of the cylinder at the second end.

[0010] Thus, the oil separator is arranged in a cylindrical structure, occupies small space, and can be connected in series on the refrigerant pipeline on the exhaust side of the compressor in application, does not need to be fixed by the bottom, fully utilizes the space originally existing around the air conditioner pipeline, does not need to reserve a special installation space for the oil separator, is convenient for layout, and is suitable for narrow space application.

[0011] According to the oil separator, the axes of the separation pipes are parallel to the axis of the cylinder body, the separation pipes are distributed along the circumference of the disc body, the gas outlet branch pipe extends along the axis direction of the cylinder body, and the first end of the gas outlet branch pipe is located between the separation pipes.

[0012] Thus, the separated gas in each separation pipe flows to the space between the separation pipes, the concentration and pressure of the gas components in the space between the separation pipes are large, and the gas components can be quickly discharged.

[0013] According to the oil separator, the first end of the cylinder body is in a conical surface shape, and the cross-sectional area of the first end of the cylinder body gradually increases along the direction from the first end to the second end of the cylinder body.

[0014] Thus, after the gaseous refrigerant enters the gas inlet cavity, the flow speed gradually decreases, so that the gaseous refrigerant can fully contact the separation pipes, and the separation efficiency is improved.

[0015] According to the oil separator, the second end of the cylinder body is provided with a fixing block, the gas outlet branch pipe penetrates the fixing block, the gas outlet branch pipe is in sealing connection with the fixing block, and the oil outlet is arranged on the fixing block.

[0016] Thus, the fixing block can support the gas outlet branch pipe, the structure strength of the second end of the cylinder body is increased by the fixing block, and the stability of the gas outlet branch pipe is improved.

[0017] According to the oil separator, the cylinder body is provided with a positioning step, the side surface of the disc body is provided with a positioning protrusion, the positioning protrusion is located on the side of the positioning step close to the gas inlet, and the positioning protrusion is in abutment with the positioning step.

[0018] Thus, the disc body close to the second end of the cylinder body can be limited by the interaction of the positioning protrusion and the positioning step. During the working process of the oil separator, the gaseous refrigerant enters the cylinder body, and the pressure of the gaseous refrigerant on the disc body can limit the disc body close to the first end of the cylinder body. In combination with the force of the gaseous refrigerant on the disc body and the interaction of the positioning protrusion and the positioning step, the position of the disc body can be stabilized.

[0019] The oil separator further comprises:

[0020] The filter element is arranged on one side of the disc body close to the air inlet, and is adapted to filter impurities in the gaseous refrigerant.

[0021] In this way, after the gaseous refrigerant enters the cylinder body, it first passes through the filter element, which can filter impurities in the gaseous refrigerant, thereby avoiding the impurities affecting the separation of oil droplets and gas components and improving the quality of the separated oil droplets and gas components. The separated oil droplets can flow back to the air inlet side of the compressor through the oil outlet branch pipe, and the separated gas components enter the condenser and the evaporator through the gas outlet branch pipe.

[0022] The filter element comprises:

[0023] The filter screen is fixedly connected to the disc body at the edge thereof, and has a spherical cap shape.

[0024] In this way, the filter element is arranged in the form of a filter screen, which is simple in structure and low in cost.

[0025] The disc body is provided with a support portion on one side close to the filter screen, and the support portion is adapted to support the filter screen away from the disc body.

[0026] In this way, the support portion protrudes from the surface of the disc body and can support the filter screen to be away from the disc body, thereby improving the filtering efficiency of the filter screen.

[0027] The second end of the cylinder body has a conical surface, and the cross-sectional area of the second end of the cylinder body gradually decreases in the direction from the first end to the second end of the cylinder body.

[0028] In this way, the aggregation of oil droplets to the oil outlet position can be promoted, and the discharge efficiency of oil droplets can be improved.

[0029] The utility model further provides an air conditioner comprising the above-mentioned oil separator.

[0030] The oil separator provided by the utility model, comprising a cylinder, a separation mechanism and a gas outlet branch pipe, the cylinder has a containing cavity inside, the first end of the cylinder is provided with an air inlet, and the second end of the cylinder is provided with an oil outlet. The separation mechanism comprises a disc body and separation pipes, and the disc body is arranged inside the cylinder. The separation pipes are at least two, and each separation pipe is arranged on one side of the disc body close to the oil outlet. One end of each separation pipe is communicated with the space on the side of the disc body close to the air inlet, and the other end of each separation pipe is communicated with the space on the side of the disc body close to the oil outlet. The disc body divides the containing cavity in the cylinder into an air inlet cavity and an exhaust cavity, the air inlet cavity is communicated with the air inlet, and the exhaust cavity is communicated with the oil outlet and the gas outlet branch pipe. The gaseous refrigerant enters the air inlet cavity of the cylinder through the air inlet and flows into each separation pipe, and then enters the exhaust cavity of the cylinder. A plurality of through holes are arranged on the side wall of the separation pipe, the gaseous refrigerant flows from the through holes in the side wall of the separation pipe to the exhaust cavity of the cylinder, and the oil drops in the gaseous refrigerant will adhere to the separation pipe when passing through the through holes due to the large mass, and the gas components in the gaseous refrigerant can smoothly leave the separation pipe, so that the gas components in the gaseous refrigerant are separated from the oil drops. The oil drops adhered to the separation pipe will drip and gather to the second end of the cylinder and be discharged through the oil outlet. The first end of the gas outlet branch pipe extends to the inside of the cylinder and is located on the side of the disc body close to the oil outlet, the second end of the gas outlet branch pipe extends to the outside of the cylinder, and the gas in the exhaust cavity is discharged through the gas outlet branch pipe. In this way, the oil separator is arranged in a cylindrical structure, occupies a small space, and can be connected in series with the refrigerant pipeline on the exhaust side of the compressor when applied, without the need for fixing by the bottom foot, fully utilizes the originally existing space around the air conditioner pipeline, without the need for reserving a special installation space for the oil separator, facilitates layout and is suitable for application in a narrow space.

[0031] Further, in the air conditioner provided by the utility model, since the oil separator is provided as described above, various advantages as described above are also provided. BRIEF DESCRIPTION OF DRAWINGS

[0032] In order to more clearly illustrate the technical solutions of the utility model or the prior art, the following will briefly introduce the drawings needed to be used in the embodiments or the prior art description. Obviously, the drawings in the following description are some embodiments of the utility model, and those skilled in the art can also obtain other drawings according to these drawings without any creative effort.

[0033] Figure 1 It is a structure schematic view of the oil separator provided by the utility model.

[0034] Figure 2 It is a front view of the oil separator provided by the utility model.

[0035] Figure 3 It is Figure 2 the sectional view of the position A-A in the figure.

[0036] Figure 4 is a structure diagram of the separation mechanism provided by the utility model.

[0037] Reference signs:

[0038] 1, cylinder; 2, air inlet; 3, oil outlet; 4, separation mechanism; 5, disc body; 6, separation pipe; 7, air inlet cavity; 8, exhaust cavity; 9, air outlet branch pipe; 10, fixed block; 11, positioning protrusion; 12, filter; 13, support part; 14, air inlet branch pipe; 15, oil outlet branch pipe. DETAILED DESCRIPTION

[0039] In order to make the purpose, technical scheme and advantages of the utility model more clear, the technical scheme in the utility model will be described clearly and completely in combination with the drawings in the utility model. Obviously, the described embodiments are part of the embodiments of the utility model, rather than all the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by the ordinary skilled in the art without creative labor belong to the protection scope of the utility model.

[0040] The oil separator of the utility model will be described below in combination with Figures 1 to 4

[0041] As shown in the figure, the oil separator provided by the utility model embodiment comprises a cylinder 1, a separation mechanism 4 and an air outlet branch pipe 9. Figures 1 to 4 Specifically, the cylinder 1 has an accommodating cavity inside, the first end of the cylinder 1 is provided with an air inlet 2, and the second end of the cylinder 1 is provided with an oil outlet 3.

[0042] The separation mechanism 4 comprises a disc body 5 and a separation pipe 6, and the disc body 5 is arranged inside the cylinder 1.

[0043] The separation pipe 6 is provided with at least two, each separation pipe 6 is arranged on one side of the disc body 5 close to the oil outlet 3. And one end of each separation pipe 6 is communicated with the space on the side of the disc body 5 close to the air inlet 2, and the other end of each separation pipe 6 is communicated with the space on the side of the disc body 5 close to the oil outlet 3.

[0044] The disc body 5 divides the accommodating cavity in the cylinder 1 into an air inlet cavity 7 and an exhaust cavity 8, the air inlet cavity 7 is communicated with the air inlet 2, and the exhaust cavity 8 is communicated with the oil outlet 3 and the air outlet branch pipe 9. The gaseous refrigerant enters the air inlet cavity 7 of the cylinder 1 through the air inlet 2 and flows to each separation pipe 6 respectively, and enters the exhaust cavity 8 of the cylinder 1 after passing through the separation pipe 6.

[0045]

[0046] ​​The side wall of the separation pipe 6 is provided with a plurality of through holes, and the gaseous refrigerant flows from the through holes of the side wall of the separation pipe 6 to the exhaust cavity 8 of the cylinder body 1, and the oil droplets in the gaseous refrigerant are attached to the separation pipe 6 when passing through the through holes due to the large mass, and the gas components in the gaseous refrigerant can smoothly leave the separation pipe 6 and enter the exhaust cavity 8.

[0047] The oil droplets attached to the separation pipe 6 will drip and gather to the second end of the cylinder body 1 and be discharged through the oil outlet 3. The first end of the gas outlet branch pipe 9 extends to the inside of the cylinder body 1 and is located on the side of the disc body 5 close to the oil outlet 3, and the second end of the gas outlet branch pipe 9 extends to the outside of the cylinder body 1, and the gas in the exhaust cavity 8 is discharged through the gas outlet branch pipe 9, thereby realizing the separation of the gas components and the oil droplets in the gaseous refrigerant.

[0048] In this way, the oil separator is arranged in a cylindrical structure, occupies a small space, and when applied, the oil separator can be connected in series on the refrigerant pipeline on the exhaust side of the compressor, without the need for bottom fixing, fully utilizing the space originally existing around the air conditioner pipeline, without the need to reserve a special installation space for the oil separator, facilitating the layout and being suitable for narrow space applications.

[0049] It should be noted that the oil separator in the embodiment needs to be arranged vertically when in use, that is, the axis of the cylinder body 1 of the oil separator needs to be arranged vertically, the air inlet 2 is located at the upper end of the cylinder body 1, and the oil outlet 3 is located at the bottom end of the cylinder body 1. The oil droplets attached to the separation pipe 6 will drip to the second end of the cylinder body 1 under the action of gravity, and can quickly gather to the oil outlet 3.

[0050] The side wall of each separation pipe 6 is provided with a plurality of through holes, and the plurality of through holes are divided into a plurality of rows, and the plurality of rows of through holes are distributed in the circumferential direction of the separation pipe 6, and each row of through holes is distributed in the axial direction of the separation pipe 6.

[0051] In the embodiment of the utility model, the axis of the separation pipe 6 is parallel to the axis of the cylinder body 1, the length of the separation pipe 6 can be appropriately increased to increase the contact area of the gaseous refrigerant to be separated and the separation mechanism 4, and the separation efficiency and separation effect are improved.

[0052] In the embodiment, the separation pipes 6 are distributed in the circumferential direction of the disc body 5, the gas outlet branch pipe 9 extends in the axial direction of the cylinder body 1, and the first end of the gas outlet branch pipe 9 is located between the separation pipes 6. The separated part of the gas in each separation pipe 6 will flow to the space between the separation pipes 6, and the concentration and pressure of the gas components in the space between the separation pipes 6 are relatively large, which is beneficial to the rapid discharge of the gas components. Moreover, the gas outlet branch pipe 9 is arranged between the separation pipes 6, and the space between the separation pipes 6 can be fully utilized, and the structure is compact.

[0053] In the specific embodiment, the cross-sectional shape of the cylinder 1, the cross-sectional shape of the disc 5 and the cross-sectional shape of the separation tube 6 can all be circular. The five separation tubes 6 are distributed along the circumference of the disc 5.

[0054] In the embodiment, the first end of the cylinder 1 is conical. The cross-sectional area of the first end of the cylinder 1 gradually increases in the direction from the first end to the second end of the cylinder 1. After the gaseous refrigerant enters the gas inlet cavity 7, the flow velocity gradually decreases, so that the gaseous refrigerant can fully contact the separation tube 6 and improve the separation efficiency.

[0055] In the embodiment, the second end of the cylinder 1 is conical. The cross-sectional area of the second end of the cylinder 1 gradually decreases in the direction from the first end to the second end of the cylinder 1, which can promote the aggregation of oil droplets at the position of the oil outlet 3 and improve the discharge efficiency of the oil droplets.

[0056] In the embodiment of the utility model, the gas outlet branch pipe 9 extends along the axis direction of the cylinder 1, so that the gas outlet branch pipe 9 penetrates the second end of the cylinder 1. At this time, a fixing block 10 can be arranged at the second end of the cylinder 1, and the fixing block 10 is fixed to the second end of the cylinder 1. The gas outlet branch pipe 9 penetrates the fixing block 10, and the gas outlet branch pipe 9 is sealingly connected with the fixing block 10.

[0057] The fixing block 10 can support the gas outlet branch pipe 9, and the arrangement of the fixing block 10 increases the structural strength of the second end of the cylinder 1 and improves the stability of the gas outlet branch pipe 9.

[0058] The oil outlet 3 is also arranged on the fixing block 10. When the oil outlet branch pipe 15 is connected to the oil outlet 3, the oil outlet branch pipe 15 can be fixedly connected with the fixing block 10 and sealingly connected with the oil outlet 3. The fixing block 10 supports the gas outlet branch pipe 9 and also supports the oil outlet branch pipe 15, thereby improving the stability of the oil outlet branch pipe 15.

[0059] The gas inlet 2 at the first end of the cylinder 1 is connected with a gas inlet branch pipe 14, and the gas inlet branch pipe 14 is sealingly connected with the cylinder 1.

[0060] It should be noted that the sealing connection between the gas outlet branch pipe 9 and the fixing block 10, the sealing connection between the oil outlet branch pipe 15 and the fixing block 10 and the sealing connection between the gas inlet branch pipe 14 and the cylinder 1 can all be achieved by welding.

[0061] The material of the fixing block 10 can be, but is not limited to, copper.

[0062] The connection between the disc 5 and the cylinder 1 can be achieved by riveting, bolt connection, clamping or the like, as long as the cylinder 1 is in a sealed state to avoid leakage of gaseous refrigerant.

[0063] In the embodiment, the positioning step is arranged in the cylinder 1, and the positioning protrusion 11 is arranged on the side of the disc 5. When the disc 5 is placed in the cylinder 1, the positioning protrusion 11 on the disc 5 is located on the side of the positioning step close to the air inlet 2, and the positioning protrusion 11 can abut against the positioning step.

[0064] In this way, the disc 5 can be limited to approach the second end of the cylinder 1 through the interaction between the positioning protrusion 11 and the positioning step. During the operation of the oil separator, the gaseous refrigerant enters the cylinder 1, and the pressure of the gaseous refrigerant on the disc 5 can limit the disc 5 to approach the first end of the cylinder 1. In combination with the force of the gaseous refrigerant on the disc 5 and the interaction between the positioning protrusion 11 and the positioning step, the position of the disc 5 can be stabilized.

[0065] In the embodiment, the oil separator further comprises a filter 12 arranged on the side of the disc 5 close to the air inlet 2. After the gaseous refrigerant enters the cylinder 1, it first passes through the filter 12. The filter 12 can filter out impurities in the gaseous refrigerant, avoid the impurities affecting the separation of oil droplets and gas components, and improve the quality of the separated oil droplets and gas components. The separated oil droplets can flow back to the suction side of the compressor through the oil outlet branch pipe 15, and the separated gas components enter the condenser and the evaporator through the gas outlet branch pipe 9. After the filter 12 filters out the impurities, the impurities can be prevented from entering the compressor, the condenser, the evaporator and other devices, which is beneficial to prolong the service life of the air conditioner.

[0066] Specifically, the filter 12 comprises a filter screen, the edge of the filter screen is fixedly connected with the disc 5, and the filter screen is in the shape of a spherical cap. Referring to Figure 3 The filter 12 is arranged in the form of a filter screen, which is simple in structure and low in cost.

[0067] The filter screen can be but is not limited to a stainless steel filter screen. In the embodiment, a 100-mesh stainless steel filter screen is selected as the filter 12.

[0068] For the connection structure of the filter screen and the disc 5, an annular clamping groove can be arranged on the disc 5. The edge of the filter screen is clamped into the annular clamping groove, so that the filter screen and the disc 5 are clamped and fixed. The filter screen and the disc 5 are clamped together by clamping, which facilitates the disassembly and assembly of the filter screen and facilitates the replacement of the filter screen.

[0069] In the embodiment, a support portion 13 is arranged on the side of the disc 5 close to the filter screen. The support portion 13 protrudes from the surface of the disc 5 and can support the filter screen to separate the filter screen from the disc 5, thereby improving the filtering efficiency of the filter screen.

[0070] Referring to Figure 4 The support portion 13 can be arranged in a hemispherical shape, and the surface of the support portion 13 is smooth, which can avoid damaging the filter screen.

[0071] In another aspect, the utility model embodiment further provides an air conditioner comprising the oil separator provided by any of the above embodiments. The oil separator provided by any of the above embodiments can be connected in series on a pipeline in the air conditioner, can fully utilize the originally existing space around the air conditioner pipeline, and does not need to reserve a special installation space for the oil separator. Therefore, the air conditioner in the embodiment has the advantages of compact structure and high space utilization. The derivation process of the beneficial effects of the air conditioner in the embodiment is similar to the derivation process of the beneficial effects of the oil separator, and therefore is not described here.

[0072] Finally, it should be noted that: the above embodiments are only used to illustrate the technical solutions of the utility model, and not to limit them; although the utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that: it can still modify the technical solutions recorded in the foregoing embodiments, or make equivalent replacement for part of the technical features; and these modifications or replacements do not make the essence of the corresponding technical solutions deviate from the spirit and scope of the technical solutions of the embodiments of the utility model.

Claims

1. An oil separator, characterized in that, include: The cylinder (1) has an internal cavity, and an air inlet (2) is provided at the first end of the cylinder (1) and an oil outlet (3) is provided at the second end of the cylinder (1). The separation mechanism (4) includes a disc body (5) and at least two separation tubes (6). The disc body (5) is disposed inside the cylinder (1). Each of the separation tubes (6) is disposed on the side of the disc body (5) near the oil outlet (3). One end of each of the separation tubes (6) is connected to the space on the side of the disc body (5) near the air inlet (2). The other end of each of the separation tubes (6) is connected to the space on the side of the disc body (5) near the oil outlet (3). Multiple through holes are provided on the side wall of the separation tube (6). The first end of the air outlet branch pipe (9) extends into the interior of the cylinder (1) and is located on the side of the disc (5) near the oil outlet (3), and the second end of the air outlet branch pipe (9) extends into the exterior of the cylinder (1).

2. The oil separator according to claim 1, characterized in that, The axis of the separation pipe (6) is parallel to the axis of the cylinder (1). Each of the separation pipes (6) is distributed circumferentially along the disc (5). The gas outlet branch pipe (9) extends along the axis of the cylinder (1). The first end of the gas outlet branch pipe (9) is located between each of the separation pipes (6).

3. The oil separator according to claim 1, characterized in that, The first end of the cylinder (1) is conical, and the cross-sectional area of ​​the first end of the cylinder (1) gradually increases along the direction from the first end to the second end.

4. The oil separator according to claim 2, characterized in that, A fixing block (10) is provided at the second end of the cylinder (1), the air outlet branch pipe (9) passes through the fixing block (10), the air outlet branch pipe (9) is sealed to the fixing block (10), and the oil outlet (3) is provided on the fixing block (10).

5. The oil separator according to claim 1, characterized in that, The cylinder (1) is provided with a positioning step, and the side of the disc (5) is provided with a positioning protrusion (11). The positioning protrusion (11) is located on the side of the positioning step near the air inlet (2), and the positioning protrusion (11) abuts against the positioning step.

6. The oil separator according to any one of claims 1-5, characterized in that, Also includes: A filter element (12) is disposed on the side of the disc body (5) near the air inlet (2), and the filter element (12) is adapted to filter out impurities in the gaseous refrigerant.

7. The oil separator according to claim 6, characterized in that, The filter element (12) includes: The filter screen is fixedly connected to the disc body (5) at its edge and is spherical in shape.

8. The oil separator according to claim 7, characterized in that, The disc body (5) has a support part (13) on the side near the filter screen, and the support part (13) is adapted to separate the filter screen from the disc body (5).

9. The oil separator according to claim 1, characterized in that, The second end of the cylinder (1) is conical, and the cross-sectional area of ​​the second end of the cylinder (1) gradually decreases along the direction from the first end to the second end.

10. An air conditioner, characterized in that, Including the oil separator as described in any one of claims 1 to 9.

Images