Efficient and uniform oil separator

Abstract

The utility model belongs to the technical field of oil-gas separation devices, and particularly relates to an efficient and uniform oil separator which comprises a closed shell, an oil-gas mixing inlet end is fixedly connected to the center of the top of the shell, and a center pipe is rotationally connected to the position, corresponding to the oil-gas mixing inlet end, in the shell. The upper side wall of the shell is fixedly connected with an oil-gas mixing outlet end, and a plurality of separation assemblies are installed on the center pipe. Mixed gas is guided into the bottom of the shell through the center pipe, then oil gas flows upwards, flowing of the oil gas is retarded through cooperation of the baffle and the circulation hole, turbulent flow is generated, oil drops are attached to the bottom of the shell, flow out of the oil distributor through the adapter and then return to a crankcase, and therefore oil leakage is avoided. And the filtered gas is discharged out of the oil-gas separator through the oil-gas mixture outlet end.

Description

Technical Field

[0001] The utility model relates to the technical field of oil-gas separation devices, in particular to a highly efficient and uniform oil separator. Background Art

[0002] The diesel engine crankcase needs to be connected to the outside world to promptly discharge the oil mist mixture inside the crankcase to avoid excessive crankcase pressure, which can cause diesel engine malfunctions such as oil and gas leaks. The oil mist mixture contains a large amount of lubricating oil vapor, which needs to be filtered using an oil-gas separation device to prevent contamination of the external environment and the equipment, while also avoiding unnecessary lubricating oil loss.

[0003] For high-intensity diesel engines and large marine diesel engines, when the diesel engine is placed inside the cabin, to avoid the impact of crankcase ventilation on the internal cabin environment, the crankcase ventilation often cannot be discharged directly into the atmosphere. Instead, a closed crankcase ventilation cycle is required. This involves filtering the excess gas in the crankcase and introducing it into the turbocharger compressor inlet. The gas then enters the diesel engine cylinder, participates in combustion, and is discharged to the outside. For high-intensity diesel engines and large marine diesel engines, traditional oil-gas separation devices usually use a filter element type oil-gas separation device, which is mainly composed of a housing, filter element, diaphragm, and spring. As the filter element's operating time increases, the ventilation efficiency decreases and it will gradually become clogged, leading to excessive pressure in the crankcase. The filter element needs to be replaced regularly to ensure the normal operation of the oil-gas separator, resulting in high maintenance frequency and high replacement costs.

[0004] The existing Chinese patent with the announcement number CN111237031A discloses a diesel engine oil-gas separation device, including a closed shell, an oil-gas mixture inlet, an oil-gas mixture outlet, a baffle, a orifice plate and a center tube. A center tube is vertically arranged in the shell, the top of the center tube is sealed with the inner cavity of the shell, and the bottom of the center tube is connected with the inner cavity of the shell. In the inner cavity of the shell, a plurality of baffles and orifice plates are axially arranged at intervals along the center tube, and the outer edges of the baffles and the outer edges of the orifice plates are in contact with the shell. An oil-gas mixture inlet and an oil-gas mixture outlet are provided on the upper part of the outer side wall of the shell, and the oil-gas mixture outlet is connected with the inner cavity of the shell, and the oil-gas mixture inlet is connected with the center tube.

[0005] In view of the above-mentioned and existing related technologies, the inventors believe that the following defects often exist: the pressure regulation function of the device is located inside the shell, and when replacing the throttle plug, the shell needs to be disassembled first, which makes adjustment inconvenient and needs to be improved; therefore, to address the above problems, an efficient and uniform oil separator is proposed. Utility Model Content

[0006] In order to make up for the deficiencies of the prior art and solve the above-mentioned technical problems, the utility model proposes an efficient and uniform oil separator.

[0007] The technical solution adopted by the present invention to solve its technical problems is as follows: the present invention is an efficient and uniform oil separator, comprising a closed shell, a top center of the shell is fixedly connected to an oil-gas mixture inlet end, the interior of the shell is rotatably connected to the oil-gas mixture inlet end, the upper side wall of the shell is fixedly connected to an oil-gas mixture outlet end, a plurality of separation components are installed on the center tube, and the separation components include a plurality of baffles, the baffles are equidistantly installed on the surface of the center tube from top to bottom, and the surface of the baffles is provided with flow holes distributed in an annular manner, the surface of the oil-gas mixture inlet end is installed with a regulating valve, and the oil in the crankcase The air-gas mixture contains a large amount of lubricating oil droplets. The mixture enters the shell through the oil-gas mixture inlet and is introduced into the bottom of the shell by the center pipe. Then the oil and gas flow upward, and the flow of oil and gas is slowed down by the cooperation of the baffle and the flow hole, generating turbulence, causing the oil droplets to adhere and then flow into the bottom of the shell, and flow out of the oil separator through the adapter joint and return to the crankcase. The filtered gas is discharged from the oil-gas separator through the oil-gas mixture outlet, and the opening and closing size of the oil-gas mixture inlet can be controlled by the regulating valve, thereby adjusting the flow resistance of the oil separator to keep the crankcase pressure within a reasonable range. Compared with the existing technology, it can be adjusted without disassembling the shell, which is more convenient to use.

[0008] Preferably, a flange cover is fixedly connected to the bottom of the shell, and a switching joint is fixedly connected to the bottom of the flange cover. The switching joint is connected to the crankcase and is used to recover the outflowing filtered lubricating oil to the crankcase.

[0009] Preferably, a fixing ear is fixedly connected to the top of the shell, and the shell is fixed by connecting to the components of the diesel engine through the fixing ear.

[0010] Preferably, a plurality of reciprocating thread grooves are tapped on the outer surface of the central tube corresponding to the baffle, and the baffle comprises an upper plate body and a lower plate body, and the outer ends of the upper plate body and the lower plate body abut against the inner wall of the shell.

[0011] Preferably, guide rods are symmetrically provided on both sides of the upper plate body and the lower plate body, and the top ends of the guide rods are fixedly connected to the shell, and the lower plate body is fixedly connected to the guide rods.

[0012] Preferably, the upper plate body is threadedly connected to the reciprocating thread groove of the central tube.

[0013] Preferably, a sponge layer is installed on the opposite side of the upper plate body and the lower plate body, and the sponge layer is sleeved on the outside of the central tube. A flexible membrane is fixedly connected to the top of the sponge layer. The sponge layer can absorb the oil in the oil and gas, and further slow down the flow of the oil and gas, thereby improving the separation effect of the oil and gas. The flexible membrane can prevent the oil from flowing upward during squeezing.

[0014] Preferably, the separation component also includes an impeller, which is fixedly installed inside the central tube. When the oil and gas flow inside the central tube, the impeller is driven to rotate, driving the central tube to rotate and driving the upper plate body to reciprocate up and down. Then, the sponge layer can be repeatedly squeezed by cooperating with the lower plate body to squeeze out the adsorbed oil, thereby maintaining the adsorption effect of the sponge layer for a long time.

[0015] The utility model is beneficial in that:

[0016] 1. In this utility model, the mixed gas is introduced into the bottom of the shell through the central tube, and then the oil and gas flow upward. The flow of oil and gas is slowed down by the cooperation of the baffle and the flow hole, generating turbulence, so that the oil droplets adhere and then flow into the bottom of the shell, and then flow out of the oil separator through the adapter joint and return to the crankcase. The filtered gas is discharged from the oil-gas separator through the oil-gas mixed outlet end, and can be used without a filter element.

[0017] 2. The utility model can absorb the oil in the oil and gas through the sponge layer, and further slow down the flow of oil and gas, thereby improving the separation effect of oil and gas. The upper plate and the lower plate can cooperate to repeatedly squeeze the sponge layer, squeeze out the absorbed oil, and maintain the adsorption effect of the sponge layer for a long time. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the following briefly introduces the drawings required for use in the embodiments or the description of the prior art. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying any creative work.

[0019] Figure 1 This is a schematic diagram of the overall structure of the utility model;

[0020] Figure 2 This is a cross-sectional view of the housing of the utility model;

[0021] Figure 3 This is a schematic diagram of the separation component structure of the utility model;

[0022] Figure 4 This is a cross-sectional view of the baffle and center tube of the utility model;

[0023] Figure 5 For this utility model Figure 4 Schematic diagram of the A structure.

[0024] In the figure: 1. Shell; 2. Oil-gas mixture inlet; 3. Center pipe; 4. Oil-gas mixture outlet; 5. Separation assembly; 51. Baffle; 52. Flow hole; 53. Guide rod; 54. Sponge layer; 55. Impeller; 511. Upper plate; 512. Lower plate; 6. Adapter; 7. Fixing ear; 8. Flange cover; 9. Control valve. DETAILED DESCRIPTION

[0025] The following will be combined with the accompanying 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 embodiments described are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0026] Example 1: Please refer to Figure 1-3 As shown, an efficient and uniform oil separator includes a closed shell 1, an oil-gas mixture inlet port 2 is fixedly connected to the top center of the shell 1, a central pipe 3 is rotatably connected to the oil-gas mixture inlet port 2 in the interior of the shell 1, an oil-gas mixture outlet port 4 is fixedly connected to the upper side wall of the shell 1, a plurality of separation components 5 are installed on the central pipe 3, and the separation components 5 include a plurality of baffles 51, which are equidistantly installed on the surface of the central pipe 3 from top to bottom, and the surface of the baffles 51 is provided with annularly distributed flow holes 52, a regulating valve 9 is installed on the surface of the oil-gas mixture inlet port 2, the oil-gas mixture in the crankcase contains a large amount of lubricating oil droplets, and the mixture The gas enters the shell 1 through the oil-gas mixture inlet port 2 and is introduced into the bottom of the shell 1 by the central tube 3. Then the oil and gas flow upward, and the flow of the oil and gas is slowed down by the cooperation of the baffle 51 and the flow hole 52, generating turbulence, causing the oil droplets to adhere and then flow into the bottom of the shell 1, and flow out of the oil separator through the adapter joint 6 and return to the crankcase. The filtered gas is discharged from the oil-gas separator through the oil-gas mixture outlet port 4, and the opening and closing size of the oil-gas mixture inlet port 2 can be controlled by the regulating valve 9, thereby adjusting the flow resistance of the oil separator to keep the crankcase pressure within a reasonable range. Compared with the existing technology, it can be adjusted without disassembling the shell 1, which is more convenient to use.

[0027] A flange cover 8 is fixedly connected to the bottom of the housing 1 , and an adapter joint 6 is fixedly connected to the bottom of the flange cover 8 . The adapter joint 6 is connected to the crankcase and is used to recover the outflowing filtered lubricating oil to the crankcase.

[0028] A fixing ear 7 is fixedly connected to the top of the housing 1, and the housing 1 is fixed by connecting to the components of the diesel engine through the fixing ear 7.

[0029] Example 2: For comparison with Example 1, please refer to Figure 4-5As shown, the present invention provides another embodiment, the outer surface of the central tube 3 is tapped with a plurality of reciprocating thread grooves corresponding to the baffle 51, and the baffle 51 includes an upper plate body 511 and a lower plate body 512, and the outer ends of the upper plate body 511 and the lower plate body 512 are against the inner wall of the shell 1.

[0030] Guide rods 53 are symmetrically provided on both sides of the upper plate 511 and the lower plate 512 , and the top ends of the guide rods 53 are fixedly connected to the housing 1 , and the lower plate 512 is fixedly connected to the guide rods 53 .

[0031] The upper plate body 511 is threadedly connected to the reciprocating thread groove of the central tube 3 .

[0032] A sponge layer 54 is installed on the opposite side of the upper plate body 511 and the lower plate body 512, and the sponge layer 54 is sleeved on the outside of the central tube 3. The sponge layer 54 can absorb the oil in the oil and gas, and further slow down the flow of the oil and gas, thereby improving the separation effect of the oil and gas.

[0033] The separation component 5 also includes an impeller 55, which is fixedly installed inside the central tube 3. When the oil and gas flow inside the central tube 3, the impeller 55 is driven to rotate, driving the central tube 3 to rotate, and driving the upper plate 511 to reciprocate up and down. Then, the sponge layer 54 can be repeatedly squeezed by cooperating with the lower plate 512 to squeeze out the adsorbed oil, thereby maintaining the adsorption effect of the sponge layer 54 for a long time.

[0034] Working principle: the oil-gas mixture in the crankcase contains a large amount of lubricating oil droplets. The mixture enters the interior of the shell 1 through the oil-gas mixture inlet port 2, and is introduced into the bottom of the shell 1 by the center pipe 3. Then the oil and gas flow upward, and the flow of the oil and gas is slowed down by the cooperation of the baffle 51 and the flow hole 52, generating turbulence, so that the oil droplets adhere and then flow into the bottom of the shell 1, and flow out of the oil separator through the adapter joint 6 and return to the crankcase. The filtered gas is discharged from the oil-gas separator through the oil-gas mixture outlet port 4, and the opening and closing size of the oil-gas mixture inlet port 2 can be controlled by the regulating valve 9, thereby adjusting the flow resistance of the oil separator to keep the crankcase pressure within a reasonable range. Compared with the existing technology, it can be adjusted without disassembling the shell 1, which is more convenient to use.

[0035] The sponge layer 54 can absorb the oil in the oil and gas, and further slow down the flow of the oil and gas, thereby improving the separation effect of the oil and gas. When the oil and gas flow inside the central tube 3, the impeller 55 is driven to rotate, driving the central tube 3 to rotate, and driving the upper plate 511 to reciprocate up and down. Then, the sponge layer 54 can be repeatedly squeezed by cooperating with the lower plate 512 to squeeze out the absorbed oil, thereby maintaining the adsorption effect of the sponge layer 54 for a long time.

[0036] Throughout this specification, references to terms such as "one embodiment," "example," or "specific example" indicate that a specific feature, structure, material, or characteristic described in conjunction with that embodiment or example is included in at least one embodiment or example of the present invention. In this specification, schematic representations of these terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples.

[0037] The above shows and describes the basic principles, main features and advantages of the present invention. Those skilled in the art should understand that the present invention is not limited to the above embodiments. The above embodiments and descriptions are merely illustrative of the principles of the present invention. Various changes and improvements may be made to the present invention without departing from the spirit and scope of the present invention, and such changes and improvements fall within the scope of the present invention as claimed.

Claims

1. An efficient and uniform oil separator, comprising a closed housing (1), characterized in that: An oil-gas mixture inlet (2) is fixedly connected to the center of the top of the shell (1), a center tube (3) is rotatably connected to the oil-gas mixture inlet (2) inside the shell (1), an oil-gas mixture outlet (4) is fixedly connected to the upper side wall of the shell (1), a plurality of separation components (5) are installed on the center tube (3), and the separation components (5) include a plurality of baffles (51), the baffles (51) are equidistantly installed on the surface of the center tube (3) from top to bottom, and the surface of the baffles (51) is provided with flow holes (52) distributed in an annular shape, and a regulating valve (9) is installed on the surface of the oil-gas mixture inlet (2).

2. The efficient and uniform oil separator according to claim 1, characterized in that: The bottom of the housing (1) is fixedly connected to a flange cover (8), and the bottom of the flange cover (8) is fixedly connected to a transition joint (6).

3. The efficient and uniform oil separator according to claim 1, characterized in that: A fixing ear (7) is fixedly connected to the top of the housing (1).

4. The efficient and uniform oil separator according to claim 1, characterized in that: The outer surface of the central tube (3) is threaded with a plurality of reciprocating thread grooves corresponding to the baffle (51). The baffle (51) comprises an upper plate (511) and a lower plate (512). The outer ends of the upper plate (511) and the lower plate (512) abut against the inner wall of the shell (1).

5. The efficient and uniform oil separator according to claim 4, characterized in that: Guide rods (53) are symmetrically provided on both sides of the upper plate (511) and the lower plate (512), and the top ends of the guide rods (53) are fixedly connected to the housing (1), and the lower plate (512) is fixedly connected to the guide rods (53).

6. The efficient and uniform oil separator according to claim 4, characterized in that: The upper plate body (511) is threadedly connected to the reciprocating thread groove of the central tube (3).

7. The efficient and uniform oil separator according to claim 4, characterized in that: A sponge layer (54) is installed on opposite sides of the upper plate body (511) and the lower plate body (512), and the sponge layer (54) is sleeved on the outside of the central tube (3). A flexible membrane is fixedly connected to the top of the sponge layer (54).

8. The efficient and uniform oil separator according to claim 1, characterized in that: The separation assembly (5) further comprises an impeller (55), wherein the impeller (55) is fixedly mounted inside the central tube (3).

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