Spiral oil-gas separator

Abstract

The utility model relates to a spiral oil-gas separator, which relates to the technical field of engine parts and comprises an outer pipe, a spiral plate, an upper sealing plate and a lower sealing plate, the upper sealing plate and the lower sealing plate are arranged on two sides of the outer pipe, the spiral plate is arranged in the outer pipe and between the upper sealing plate and the lower sealing plate, the spiral plate is connected with the upper sealing plate and the lower sealing plate, and the upper sealing plate is connected with the lower sealing plate. A separation cavity is formed among the inner wall of the outer pipe, the spiral plate, the upper sealing plate and the lower sealing plate, the lower sealing plate is provided with an air inlet communicated with the separation cavity, the lower sealing plate is provided with an oil outlet communicated with the separation cavity, and the outer pipe is provided with an air outlet communicated with the separation cavity. The device has the effects of separating oil and gas of leaked mixed gas and saving energy.

Description

Technical Field

[0001] The utility model relates to the technical field of engine parts, in particular to a spiral oil-gas separator. Background Art

[0002] An engine is a device that provides power for a power equipment and is the heart of the power equipment. During the operation of the engine, the engine mixes air and fuel in a certain proportion, sucks the mixture into the cylinder during the intake stroke, and the mixture is compressed, ignited and burned to generate heat energy. The high-temperature and high-pressure gas acts on the top of the piston, pushing the piston to move, so as to achieve work, and outputs mechanical energy through internal mechanisms such as connecting rods and crankshafts to drive the power equipment to operate.

[0003] In the related art, during the operation of the engine, since the piston continuously rubs against the inner wall of the combustion chamber during the movement, even if the connection relationship between the two is a precise fit, some gases will leak out. This part of the leaked gas enters the cavity of the engine body, generating high-pressure gas impact on other parts inside the body, resulting in oil leakage at places such as oil seals and sealing gaskets. Therefore, exhaust operation is required.

[0004] In the actual exhaust process, the exhausted gas is a mixture of air and engine oil. Direct emission will cause waste of engine oil. Therefore, there is an urgent need for an oil-gas separator to separate the above-mentioned oil-gas mixture. Content of the Utility Model

[0005] In order to separate the exhausted mixed oil and gas and save energy, the present application provides a spiral oil-gas separator.

[0006] The spiral oil-gas separator provided by the present application adopts the following technical solutions:

[0007] A spiral oil-gas separator includes an outer tube, a spiral plate, an upper sealing plate and a lower sealing plate. The upper sealing plate and the lower sealing plate are arranged on both sides of the outer tube. The spiral plate is arranged inside the outer tube and between the upper sealing plate and the lower sealing plate. The spiral plate is connected to the upper sealing plate and the lower sealing plate. A separation chamber is formed between the inner wall of the outer tube and the spiral plate, the upper sealing plate and the lower sealing plate. The lower sealing plate is provided with an air inlet communicating with the separation chamber, the lower sealing plate is provided with an oil outlet communicating with the separation chamber, and the outer tube is provided with an air outlet communicating with the separation chamber.

[0008] By adopting the above technical solution, the more turns the spiral plate has, the better the separation effect. Generally, it is not less than two and a half turns. This separator is installed on the engine and can be connected to a gas treatment device for recovering and treating exhaust gas before discharging. The mixed gas discharged from the engine enters the separation chamber through the air inlet. The spiral plate forces the mixed gas to flow along the plate wall. Since the engine oil in the mixed gas has relatively high viscosity, it will be adsorbed on the plate wall during the flow process and flow downward along the spiral plate wall, and then flow back to the engine internal oil collection through the oil return port. The separated gas is discharged from the air outlet on the top wall of the outer pipe and enters the gas treatment device for treatment, thus realizing oil-gas separation, achieving the effects of saving engine oil, reducing environmental pollution, discharging oil and gas in time, reducing the operation cost of the engine and improving the operation reliability of the engine.

[0009] Preferably, the lower sealing plate is provided with an intake pipe communicating with the air inlet, the lower sealing plate is provided with an oil outlet pipe communicating with the oil outlet, and the outer appearance is provided with an air outlet pipe communicating with the air outlet.

[0010] By adopting the above technical solution, by providing the intake pipe, it is convenient to connect with the engine exhaust port; by providing the oil outlet pipe, it is convenient to connect with the engine oil recovery pipe to recover engine oil; by providing the air outlet pipe, it is convenient to connect with the subsequent gas treatment device to discharge the exhaust gas after oil-gas separation, reducing the possibility of leakage during air intake, exhaust and oil discharge, improving the sealing performance, and thus further saving engine oil and reducing environmental pollution.

[0011] Preferably, the intake pipe is provided with a connecting flange.

[0012] By adopting the above technical solution, the intake pipe is connected to the engine through the connecting flange, and by providing the connecting flange, the installation stability of the separator is improved.

[0013] Preferably, the lower sealing plate is provided with an oil outlet groove, and the oil outlet is arranged on the bottom wall of the oil outlet groove.

[0014] By adopting the above technical solution, the oil outlet groove is used to collect the engine oil on the spiral plate wall. At the same time, the oil outlet groove reduces the possibility of the engine oil flowing back through the air inlet and flowing back into the engine, reducing the possibility of the engine oil reflux affecting the engine performance. At the same time, it can better collect the engine oil, improve the efficiency of engine oil recovery and save energy.

[0015] Preferably, the oil outlet groove is provided with a flow guiding block.

[0016] By adopting the above technical solution, the collected engine oil is drained through the flow guiding block, so that the engine oil flows into the oil outlet for recovery, reducing the possibility of the engine oil missing the oil outlet and remaining in the separation chamber, and improving the efficiency of engine oil recovery.

[0017] Preferably, an assembly component is provided between the upper sealing plate and the outer tube. The assembly component is used to assemble the upper sealing plate and the outer tube. The assembly component includes a first assembly block and a second assembly block. The first assembly block is arranged on the outer tube, and the second assembly block is arranged on the upper sealing plate. The first assembly block is provided with a first assembly groove, and the second assembly block is inserted into the first assembly groove and is threadedly connected with the first assembly groove.

[0018] By adopting the above technical solution, the upper sealing plate can be disassembled through the assembly component, so as to clean the inner wall of the appearance and the spiral plate, thereby improving the cleanliness. During disassembly, rotate the upper sealing plate to drive the second assembly block to rotate and withdraw from the first assembly groove to disassemble the upper sealing plate. During installation, insert the second assembly block into the first assembly groove of the first assembly block, and rotate the upper sealing plate so that the second assembly block is threadedly connected with the first assembly groove, and the operation is simple and convenient.

[0019] Preferably, the assembly component includes a third assembly block. The first assembly block is provided with a second assembly groove, and the third assembly block is arranged on the upper sealing plate and inserted into the second assembly groove.

[0020] By adopting the above technical solution, when the second assembly block is inserted into the first assembly groove, the third assembly block is inserted into the second assembly groove on the first assembly block. By providing the third assembly block inserted into the second assembly groove, the connection stability and sealing performance between the upper sealing plate and the outer tube are improved, the possibility of leakage of the mixed gas is reduced, environmental pollution is reduced, and oil spillage is avoided while saving energy.

[0021] Preferably, the spiral plate is connected to the lower sealing plate. The spiral plate is provided with a connecting plate, and the connecting plate is connected to the inner wall of the outer tube.

[0022] By adopting the above technical solution, the spiral plate is connected to the lower sealing plate and is connected to the inner wall of the outer tube through the connecting plate, thereby improving the installation stability of the spiral plate, improving the sealing performance between the spiral plate, the lower sealing plate and the outer tube, reducing the possibility of oil or gas cross-flow, and improving the separation and recovery effect.

[0023] In summary, the present application includes at least one of the following beneficial technical effects:

[0024] 1. By providing an outer tube, a spiral plate, an upper sealing plate, a separation chamber, an air inlet, an oil outlet, an air outlet and a lower sealing plate, a separation chamber is formed between the inner wall of the outer tube and the spiral plate, the upper sealing plate and the lower sealing plate. The mixed gas discharged from the engine enters the separation chamber through the air inlet and flows along the wall of the spiral plate. The oil in the mixed gas adheres to the wall of the spiral plate, thereby performing oil-gas separation. The separated oil flows out through the oil outlet, and the separated gas is discharged through the air outlet, thereby recycling the oil for reuse, saving energy, and at the same time collecting and treating the waste gas to protect the environment;

[0025] 2. By setting the flow guide block and the oil outlet groove, the oil outlet groove is used to prevent the collected engine oil from flowing back, and the flow guide block is used to guide the engine oil to be discharged through the oil outlet, improving the efficiency of engine oil recovery, reducing the possibility of the engine oil flowing back and being discharged through the air inlet or remaining in the separation cavity, and saving energy and raw materials.

[0026] 3. By setting the first assembly block, the first assembly groove, the second assembly groove, the second assembly block and the third assembly block, rotating the upper sealing plate drives the second assembly block to rotate in the first assembly groove of the first assembly block, thereby releasing the threaded connection, so that the second assembly block exits the first assembly groove and drives the third assembly block to exit the third assembly groove, thereby disassembling the upper sealing plate. At this time, the inner wall of the separation cavity can be cleaned. After cleaning, insert the second assembly block into the first assembly groove and the third assembly block into the second assembly groove, and rotate the upper sealing plate so that the second assembly block is threadedly connected with the first assembly groove, thereby completing the assembly. The operation is simple and convenient, and it is convenient to clean and wash the separation cavity. Brief Description of the Drawings

[0027] Figure 1 is an overall schematic diagram of a spiral oil-gas separator provided in the first embodiment of the present application.

[0028] Figure 2 is a sectional view of a spiral oil-gas separator provided in the first embodiment of the present application.

[0029] Figure 3 is a sectional view of a spiral oil-gas separator provided in the second embodiment of the present application.

[0030] Figure 4 is Figure 3 an enlarged view of area A in

[0031] Description of the Reference Numerals: 1. Outer tube; 11. Air outlet; 111. Air outlet pipe; 2. Spiral plate; 21. Connecting plate; 3. Upper sealing plate; 31. Rotating rod; 4. Lower sealing plate; 41. Air inlet; 411. Air inlet pipe; 412. Connecting flange; 42. Oil outlet; 421. Oil outlet pipe; 43. Oil outlet groove; 431. Flow guide block; 432. Flow baffle; 5. Assembly component; 51. First assembly block; 511. First assembly groove; 512. Second assembly groove; 52. Second assembly block; 53. Third assembly block; 6. Separation cavity. Detailed Description of the Embodiments

[0032] The following further Figures 1-4 describes the present application in detail with reference to the attached

[0033] The second embodiment of the present application discloses a spiral oil-gas separator. Refer to Figures 1 to 2, which includes an outer tube 1, a spiral plate 2, an upper sealing plate 3 and a lower sealing plate 4. The lower sealing plate 4 is fixedly arranged on the side of the outer tube 1 away from the upper sealing plate 3. The spiral plate 2 is arranged inside the outer appearance and between the upper sealing plate 3 and the lower sealing plate 4. A separation chamber 6 is formed between the inner wall of the outer tube 1 and the spiral plate 2, the upper sealing plate 3 and the lower sealing plate 4. The spiral plate 2 spirals two and a half turns. The top wall of the spiral plate 2 is fixedly connected to the upper sealing plate 3, and the bottom wall of the spiral plate 2 is fixedly connected to the lower sealing plate 4. One end of the spiral plate 2 close to the inner wall of the outer tube 1 is integrally and fixedly provided with a connecting plate 21 which is fixedly connected to the inner wall of the outer tube 1. The lower sealing plate 4 is provided with an air inlet 41 and an oil outlet 42 communicating with the separation chamber 6. An air inlet pipe 411 communicating with the air inlet 41 is fixedly arranged on the outer wall of the lower sealing plate 4. A connecting flange 412 is fixedly arranged on the outer wall of the air inlet pipe 411. An oil outlet pipe 421 communicating with the oil outlet 42 is fixedly arranged on the outer wall of the lower sealing plate 4. A threaded connector for connection is arranged at one end of the oil outlet pipe 421 away from the lower sealing plate 4. An air outlet 11 communicating with the separation chamber 6 is penetrated through the side wall of the outer tube 1. The air outlet 11 is arranged on the side close to the upper sealing plate 3. An air outlet pipe 111 communicating with the air outlet 11 is fixedly arranged on the side wall of the outer tube 1. A threaded connector for connection is arranged at one end of the air outlet pipe 111 away from the outer tube 1. The separator is installed on the engine through the connecting flange 412, and the air outlet pipe 111 is connected to the subsequent waste gas treatment device. The waste gas enters the separation chamber 6 through the air inlet pipe 411 and flows along the wall of the spiral plate 2. The oil in the mixed gas adheres to the wall of the spiral plate 2, so as to carry out oil-gas separation. The oil is discharged through the oil outlet pipe 421, and the waste gas is discharged into the subsequent treatment device through the air outlet pipe 111, achieving the effects of saving oil and reducing environmental pollution. At the same time, the oil and gas are discharged in time, improving the reliability of the engine operation.

[0034] The implementation principle of a spiral oil-gas separator in the first embodiment of this application is as follows: The waste gas enters the separation chamber 6 through the air inlet pipe 411 and flows along the spiral plate 2. The oil in the waste gas adheres to the spiral plate 2. After the waste gas flows, it is discharged through the air outlet pipe 111 and enters the subsequent treatment device. The oil flows into the oil outlet pipe 421 under the action of gravity for recovery, so as to realize oil-gas separation, thus achieving the effects of saving oil and reducing environmental pollution. At the same time, for the engine, the waste gas is discharged in time, avoiding the interference of the waste gas and the oil in the waste gas to the engine operation, improving the reliability of the engine operation, and at the same time reducing the possibility of engine damage.

[0035] As an example 2, the present application discloses a spiral oil-gas separator. Compared with Example 1, the spiral oil-gas separator in Example 2 is characterized in that an assembly component 5 for assembly is provided between the upper sealing plate 3 and the outer tube 1. The assembly component 5 includes a first assembly block 51, a second assembly block 52, and a third assembly block 53. The first assembly block 51, the second assembly block 52, and the third assembly block 53 are all annular blocks. The second assembly block 52 and the third assembly block 53 are both fixedly arranged on the bottom wall of the upper sealing plate 3, and the second assembly block 52 surrounds the third assembly block 53. The first assembly block 51 is fixedly arranged on the inner wall of the outer tube 1, and the top wall of the first assembly block 51 is flush with the top wall of the outer tube 1. The top wall of the connecting plate 21 is fixedly connected to the first assembly block 51, and one end of the spiral plate 2 provided with the connecting plate 21 is fixedly connected to the first assembly block 51. The first assembly block 51 is provided with an annular first assembly groove 511 and an annular second assembly groove 512, and the first assembly groove 511 surrounds the second assembly groove 512. The second assembly block 52 is adaptively inserted into the first assembly groove 511 and is threadedly connected to the first assembly groove 511, and the third assembly block 53 is adaptively inserted into the second assembly groove 512. A rotating rod 31 is fixedly arranged on the top wall of the upper sealing plate 3. When cleaning is required, rotate the upper sealing plate 3, so that the second assembly block 52 exits the first assembly groove 511 and drives the third assembly block 53 to exit the second assembly groove 512, thereby disassembling the upper sealing plate 3. At this time, cleaning can be carried out. After cleaning is completed, cover the upper sealing plate 3 so that the second assembly block 52 is inserted into the first assembly groove 511 and the third assembly block 53 is inserted into the second assembly groove 512, and rotate the upper sealing plate 3 so that the second assembly block 52 is threadedly connected to the first assembly groove 511. At this time, the top wall of the spiral plate 2 abuts against the upper sealing plate 3 to complete the installation, and the operation is simple and convenient.

[0036] To improve the oil recovery efficiency, referring to Figure 2 , an oil outlet groove 43 communicating with the air inlet 41 is provided on the top wall of the lower sealing plate 4. The oil outlet groove 43 is located in the separation chamber 6. A baffle 432 is fixedly arranged on the inner wall of the oil outlet groove 43 on the side close to the air inlet 41. The oil outlet 42 is arranged on the bottom wall of the oil outlet groove 43. The oil outlet groove 43 is arranged in a spiral shape along the spiral plate 2 and is arranged between the plate walls of the spiral plate 2. A guide block 431 is integrally arranged on the inner side wall of the oil outlet groove 43, and the guide block 431 is arranged on both sides of the oil outlet 42. The oil adhering to the spiral plate 2 flows into the oil outlet groove 43 under the action of gravity and flows along the oil outlet groove 43 and is discharged through the oil outlet 42 under the guidance of the guide plate, reducing the probability of the oil flowing back into the air inlet 41 or remaining in the separation chamber 6 and improving the oil recovery efficiency.

[0037] The implementation principle of a spiral oil-gas separator in the second embodiment of the present application is as follows: The waste gas enters the separation chamber 6 through the intake pipe 411 and flows along the spiral plate 2. The oil in the waste gas adheres to the spiral plate 2. After the waste gas flows, it is discharged through the outlet pipe 111 and enters the subsequent treatment device. The oil flows into the oil outlet tank 43 under the action of gravity and flows along the oil outlet tank 43 and is guided by the guide block 431 into the oil outlet pipe 421 for recovery, thereby realizing oil-gas separation, achieving the effects of saving oil and reducing environmental pollution. At the same time, for the engine, the waste gas is discharged in time to avoid the interference of the waste gas and the oil in the waste gas on the engine operation, improving the reliability of the engine operation and reducing the possibility of engine damage.

[0038] The above are all the preferred embodiments of the present application, and the protection scope of the present application is not limited thereby. Therefore, all equivalent changes made according to the structure, shape, and principle of the present application shall be covered within the protection scope of the present application.

Claims

1. A spiral oil-gas separator, characterized in that: The invention comprises an outer tube (1), a spiral plate (2), an upper sealing plate (3) and a lower sealing plate (4), wherein the upper sealing plate (3) and the lower sealing plate (4) are arranged on both sides of the outer tube (1), the spiral plate (2) is arranged inside the outer tube (1) and between the upper sealing plate (3) and the lower sealing plate (4), the spiral plate (2) is connected to the upper sealing plate (3) and the lower sealing plate (4), a separation chamber (6) is formed between the inner wall of the outer tube (1) and the spiral plate (2), the upper sealing plate (3) and the lower sealing plate (4), the lower sealing plate (4) is provided with an air inlet (41) communicating with the separation chamber (6), the lower sealing plate (4) is provided with an oil outlet (42) communicating with the separation chamber (6), and the outer tube (1) is provided with an air outlet (11) communicating with the separation chamber (6).

2. A spiral oil-gas separator according to claim 1, characterized in that: The lower sealing plate (4) is provided with an air inlet pipe (411) communicating with the air inlet (41), the lower sealing plate (4) is provided with an oil outlet pipe (421) communicating with the oil outlet (42), and the outer tube is provided with an air outlet pipe (111) communicating with the air outlet (11).

3. A spiral oil-gas separator according to claim 2, characterized in that: The air inlet pipe (411) is provided with a connecting flange (412).

4. The spiral oil-gas separator according to claim 1, characterized in that: The lower sealing plate (4) is provided with an oil outlet groove (43), and the oil outlet (42) is provided on the bottom wall of the oil outlet groove (43).

5. A spiral oil-gas separator according to claim 4, characterized in that: The oil outlet groove (43) is provided with a guide block (431).

6. The spiral oil-gas separator according to claim 1, characterized in that: An assembly component (5) is provided between the upper sealing plate (3) and the outer tube (1), and the assembly component (5) is used to assemble the upper sealing plate (3) and the outer tube (1). The assembly component (5) comprises a first assembly block (51) and a second assembly block (52), wherein the first assembly block (51) is arranged on the outer tube (1), and the second assembly block (52) is arranged on the upper sealing plate (3). The first assembly block (51) is provided with a first assembly groove (511), and the second assembly block (52) is inserted into the first assembly groove (511) and is threadedly connected to the first assembly groove (511).

7. A spiral oil-gas separator according to claim 6, characterized in that: The assembly component (5) comprises a third assembly block (53); the first assembly block (51) is provided with a second assembly groove (512); the third assembly block (53) is arranged on the upper sealing plate (3) and inserted into the second assembly groove (512).

8. The spiral oil-gas separator according to claim 1, characterized in that: The spiral plate (2) is connected to the lower sealing plate (4), and the spiral plate (2) is provided with a connecting plate (21), and the connecting plate (21) is connected to the inner wall of the outer tube (1).

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