A lubricating oil filtering and degassing device and a degassing method capable of preventing oil from entering exhaust

Abstract

The application relates to the technical field of lubricating oil purification, and discloses a lubricating oil filtering and degassing device and a degassing method for exhaust oil blocking, which comprises an oil tank shell which is divided into an oil suction area and an oil return area, the oil suction area supplies oil to a lubricating oil equipment through a pipeline, the oil return area receives gas-containing lubricating oil output by the lubricating oil equipment through a pipeline, an overflow port is reserved at the top of the oil return area, and the overflow port leads to an oil tank gas space; the height of the overflow port is higher than the height of the connection between the oil return area and the pipeline; the degassing device comprises an exhaust oil blocking device and a cylinder structure, an oil inlet is arranged at the bottom of the cylinder structure, and the oil inlet is communicated with the oil return area; an air outlet is arranged at the top of the cylinder structure, and a plurality of pores for filtering the gas-containing lubricating oil are arranged in the whole height of the circumferential sidewall of the cylinder structure; one end of the exhaust oil blocking device is connected to the air outlet through a pipeline, and the other end is connected to the oil tank gas space through a pipeline. The lubricating oil filtering and degassing device and the degassing method improve the oil tank volume utilization rate and the degassing performance.

Description

Technical Field

[0001] The present invention relates to the technical field of lubricating oil purification, and in particular to a lubricating oil filtering and degassing device and a degassing method for exhausting and oil-blocking. Background Art

[0002] In today's industrial landscape, the performance of lubricating oil is crucial to the efficient operation of mechanical equipment. However, as operating time increases, bubbles gradually accumulate in the lubricating oil, which not only affects its lubrication effect but also generates cavitation noise.

[0003] Conventional lubricating oil filtration and degassing devices rely on a filter screen to remove air. The filter screen forms a vertical cylinder, where gas accumulates during operation. Vent holes are provided on the upper circumferential sidewalls of the cylinder to allow the accumulated gas to escape into the air space of the oil tank. This degassing device is installed inside the oil tank. Bubbles in the lubricating oil are trapped and gathered inside the filter screen, forming large bubbles that escape through the vent holes into the space above the oil level.

[0004] However, the degassing device has certain limitations. On the one hand, the upper 1 / 3 to 1 / 2 of the degassing device needs to be exposed above the liquid level of the oil tank for exhaust, which results in low tank volume utilization. On the other hand, if the return oil volume or gas content increases, the lubricating oil with entrained gas will flow through the upper exhaust hole to bypass the degassing filter, or be rolled up and entrained into the lubricating oil again, affecting the degassing performance. Summary of the Invention

[0005] The present application provides a lubricating oil filtering and degassing device and a degassing method with exhaust and oil blocking, which improve the volume utilization rate of the oil tank and improve the degassing performance.

[0006] In a first aspect, an embodiment of the present application provides a lubricating oil filtration and degassing system with exhaust and oil blocking, comprising:

[0007] The oil tank shell is divided into an oil suction area and an oil return area. The oil suction area supplies oil to the lubricating oil equipment through a pipeline, and the oil return area receives the aerated lubricating oil output by the lubricating oil equipment through a pipeline. The top of the oil return area is reserved for an overflow port, and the overflow port leads to the air space of the oil tank; the height of the overflow port is higher than the height of the connection between the oil return area and the pipeline;

[0008] The degassing device includes an exhaust oil blocker and a vertical cylindrical structure, an oil inlet is provided at the bottom of the cylindrical structure, and the oil inlet is connected to the oil return area; an air outlet is provided at the top of the cylindrical structure, and a plurality of pores for filtering aerated lubricating oil are provided along the entire height of the circumferential side wall of the cylindrical structure; one end of the exhaust oil blocker is connected to the air outlet through a pipe, and the other end is connected to the air space of the oil tank through a pipe.

[0009] In combination with the first aspect, in one embodiment, the cylindrical structure includes an axially vertically arranged metal shell in the shape of a cylinder, and the oil inlet and the air outlet are respectively arranged on the metal top plate and the metal bottom plate of the metal shell; the side wall of the metal shell is partially hollowed out, and a filter element is arranged at the hollowed out part, and the filter element is provided with a number of pores for filtering the gas-containing lubricating oil.

[0010] In combination with the first aspect, in one embodiment, the cylindrical structure includes a bottom plate with an oil inlet, a top plate with an air outlet, and a tubular filter element, and the axis of the filter element is vertically arranged and clamped between the bottom plate and the top plate; the filter element is provided with a plurality of pores for filtering gas-containing lubricating oil.

[0011] In combination with the first aspect, in one embodiment, the oil tank shell further includes a partition, which encloses the circumferential outer side of the lower half of the cylindrical structure into a semi-closed area to form a degassing zone; the degassing zone and the oil absorption zone are respectively located on both sides of the partition, and the oil absorption zone is at a lower position in the degassing zone.

[0012] In combination with the first aspect, in one embodiment, the oil return area is L-shaped, and the L-shaped oil return area includes a horizontal cavity area and a vertical cavity area. The vertical cavity area receives the gas-containing oil output by the lubricating oil equipment through a pipeline, and the overflow port is arranged on the top side wall of the vertical cavity area; the horizontal cavity area is connected to the cylindrical structure through an oil inlet.

[0013] In combination with the first aspect, in one embodiment, a lubricating oil pump that provides power is provided in the pipeline between the oil suction area and the lubricating oil equipment.

[0014] In combination with the first aspect, in one embodiment, a safety valve is provided in the exhaust pipe between the air outlet and the exhaust oil blocker inlet, and when the pressure of the safety valve exceeds the normal working pressure, the gas is discharged back into the oil tank housing through the safety valve.

[0015] In combination with the first aspect, in one embodiment, the lubricating oil filtration and degassing system further includes an induced draft fan, which discharges the gas in the oil tank shell to the outside through a pipeline.

[0016] In a second aspect, an embodiment of the present application provides a degassing method based on the above-mentioned lubricating oil filtration and degassing system, comprising the following steps:

[0017] During the lubrication process, the lubricating oil equipment produces aerated lubricating oil, which is transported to the oil return area through a pipeline. At the same time, large bubbles of aerated lubricating oil gather at the top of the oil return area 101 and flow into the air space of the oil tank through the overflow port 1011.

[0018] The aerated lubricating oil in the oil return zone enters the cylindrical structure through the oil inlet, and the pores in the circumferential sidewall of the cylindrical structure filter the air bubbles entrained in the aerated lubricating oil; the filtered lubricating oil is discharged from the circumferential sidewall of the cylindrical structure and enters the oil suction zone, and the filtered bubbles are collected at the top of the cylindrical structure;

[0019] The lubricating oil in the oil suction area is input into the lubricating oil equipment through the pipeline; the gas at the top of the cylinder structure is exhausted and oil-blocked through the exhaust oil blocker.

[0020] In conjunction with the second aspect, in one embodiment, the oil return area is L-shaped, and the L-shaped oil return area includes a horizontal cavity area and a vertical cavity area. The vertical cavity area receives the gas-containing oil output by the lubricating oil equipment through a pipeline, and the overflow port is provided on the top side wall of the vertical cavity area; the horizontal cavity area is connected to the cylindrical structure through an oil inlet; the gas-containing lubricating oil is transported to the oil return area through a pipeline, comprising:

[0021] The aerated lubricating oil is transported to the vertical cavity area of ​​the oil return area through the pipeline. The large-sized bubbles of the aerated lubricating oil gather at the top of the vertical cavity area and flow into the air space of the oil tank through the overflow port 1011.

[0022] The aerated lubricating oil in the oil return zone enters the cylindrical structure through the oil inlet, comprising:

[0023] The air-containing lubricating oil in the horizontal cavity area enters the cylindrical structure through the oil inlet.

[0024] The beneficial effects of the technical solutions provided in the embodiments of the present application include at least:

[0025] 1. The lubricating oil filtering and degassing system of the present application has an air outlet arranged at the top of the cylindrical structure of the degassing device, and a plurality of pores for filtering the aerated lubricating oil are arranged along the entire height of the circumferential side wall of the cylindrical structure. The highest liquid level of the aerated lubricating oil can basically reach the height of the cylindrical structure, which greatly improves the volume utilization rate of the oil tank shell compared with the traditional lubricating oil filtering and degassing device; an overflow port is reserved at the top of the oil return area of ​​the oil tank shell, and the overflow port leads to the oil tank air space. The height of the overflow port is higher than the height of the connection between the oil return area and the pipeline. After the aerated lubricating oil is input into the oil return area, the The large-sized bubbles in the gas-containing lubricating oil will gradually gather to the top of the oil tank shell under the action of buoyancy, and be discharged to the air space of the oil tank through the overflow port, realizing the first layer of degassing; then, the small-sized bubbles in the gas-containing lubricating oil are filtered through the pores of the cylinder structure, realizing the second layer of degassing; then, the gas filtered out through the pores is all discharged to the air space of the oil tank through the air outlet through the exhaust oil blocker. The exhaust oil blocker can block the outflow of lubricating oil while exhausting the gas, realizing the third layer of degassing. The three-layer degassing ensures the degassing effect, has good overall degassing performance, and can efficiently remove the gas in the gas-containing lubricating oil.

[0026] 2. The lubricating oil filtration and degassing system of the present application is specially equipped with a partition to separate the degassing area and the oil suction area. The degassed lubricating oil needs to bypass the partition and then be sucked away by the oil pump. The partition extends the flow path of the degassed lubricating oil, avoiding the vortex at the oil suction port from affecting the pore filtration of the cylindrical structure, thereby creating a stable filtration environment.

[0027] 3. In the lubricating oil filtration and degassing system of the present application, the oil return area forms an L-shaped flow channel, which is used to receive the aerated lubricating oil of the lubricating oil equipment. The vertical cavity area utilizes the buoyancy of bubbles, and the overflow port eliminates large-sized bubbles. On the other hand, the L-shaped flow channel forms a buffer zone, which reduces the flow rate of the aerated lubricating oil and evenly guides the aerated lubricating oil into the cylindrical structure to achieve smooth and uniform filtration.

[0028] 4. In the degassing method of the present application, while the aerated lubricating oil is transported to the oil return area through the pipeline, large-sized bubbles in the aerated lubricating oil gather at the top of the oil return area and flow to the air space of the oil tank through the overflow port, thereby realizing the first layer of degassing; thereafter, the aerated lubricating oil in the oil return area enters the interior of the cylinder structure through the oil inlet, and the pores on the circumferential side walls of the cylinder structure filter the entrained bubbles of the aerated lubricating oil and filter out small-sized bubbles, thereby realizing the second layer of degassing; thereafter, all the gas filtered out through the pores is discharged to the air space of the oil tank through the air outlet through the exhaust oil blocker, and the exhaust oil blocker can block the outflow of lubricating oil while exhausting the gas, thereby realizing the third layer of degassing. The three-layer degassing ensures the degassing effect, has good overall degassing performance, and can efficiently remove the gas in the aerated lubricating oil. BRIEF DESCRIPTION OF THE DRAWINGS

[0029] In order to more clearly illustrate the technical solutions in the embodiments of the present application, the following briefly introduces the drawings required for use in the description of the embodiments. Obviously, the drawings described below are only some embodiments of the present application. For ordinary technicians in this field, other drawings can be obtained based on these drawings without any creative work.

[0030] Figure 1 A schematic diagram of a lubricating oil filtration and degassing system provided in an embodiment of the present application;

[0031] In the figure: 100, oil tank shell; 101, oil return area; 102, degassing area; 103, oil suction area; 104, lubricating oil equipment; 1011, overflow port; 1001, partition; 1, metal shell; 2, filter element; 3, exhaust oil blocker; 4, lubricating oil pump; 5, induced draft fan; 6, safety valve; 11, oil inlet; 12, air outlet. DETAILED DESCRIPTION

[0032] In order to enable those skilled in the art to better understand the present invention, the following will clearly and completely describe the technical solutions in the embodiments of the present invention in conjunction with the accompanying drawings. Obviously, the described embodiments 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 creative work are within the scope of protection of this application.

[0033] The lubricating oil filtering and degassing device with exhaust and oil blocking of the present application greatly improves the volume utilization rate of the oil tank, and also improves the degassing performance, preventing the accumulated gas from rolling back into the lubricating oil.

[0034] like Figure 1 As shown, the present application discloses an embodiment of a lubricating oil filtering and degassing system for exhaust and oil blocking, and the lubricating oil filtering and degassing system includes an oil tank housing 100 and a degassing device.

[0035] The oil tank housing 100 is divided into an oil suction area 103 and an oil return area 101. The oil suction area 103 is connected to the lubricating oil inlet of the lubricating oil equipment 104 via a pipeline, supplying oil to the lubricating oil equipment 104. The oil return area 101 is connected to the lubricating oil inlet of the lubricating oil equipment 104 via a pipeline, receiving the aerated lubricating oil (i.e., lubricating oil containing fine bubbles and to be filtered) output by the lubricating oil equipment 104. An overflow port 1011 is reserved at the top of the oil return area 101, which leads to the air space in the oil tank. The height of the overflow port 1011 is higher than the height of the connection between the oil return area 101 and the pipeline.

[0036] The degassing device includes an exhaust oil blocker 3 and a vertical cylindrical structure. An oil inlet 11 is provided at the bottom of the cylindrical structure, and the oil inlet 11 is connected to the oil return area 101. Specifically, the oil inlet 11 is at a certain distance from the connection between the oil return area 101 and the pipeline, so as to reduce the flow rate of the aerated lubricating oil. An air outlet 12 is provided at the top of the cylindrical structure, and a plurality of pores for filtering the aerated lubricating oil are provided on the circumferential side wall of the cylindrical structure. The pores can filter the fine bubbles in the aerated lubricating oil. One end of the exhaust oil blocker 3 is connected to the air outlet 12 through a pipeline, and the other end is connected to the air space of the oil tank through a pipeline. Specifically, the bubbles filtered out from the pores enter the exhaust oil blocker 3 through the pipeline. The exhaust oil blocker 3 discharges gas and blocks the lubricating oil. After passing through the exhaust oil blocker 3, the gas enters the air space of the oil tank.

[0037] In the lubricating oil filtration and degassing system of the present application, the air outlet 12 is provided at the top of the cylindrical structure of the degassing device, and a plurality of pores for filtering the aerated lubricating oil are provided along the entire height of the circumferential side wall of the cylindrical structure. The liquid level of the aerated lubricating oil can basically reach the height of the cylindrical structure. Compared with conventional lubricating oil filtration and degassing devices, the volume utilization rate of the oil tank shell is greatly improved.

[0038] An overflow port 1011 is reserved at the top of the oil return area 101 of the oil tank housing 100. The overflow port 1011 leads to the oil tank air space. The height of the overflow port 1011 is higher than the height of the connection between the oil return area 101 and the pipeline. After the aerated lubricating oil is input into the oil return area 101, the large-sized bubbles in the aerated lubricating oil will gradually gather to the top of the oil tank housing 100 due to the action of buoyancy, and be discharged into the oil tank air space through the overflow port 1011, realizing the first layer of degassing. Afterwards, the small-sized bubbles in the aerated lubricating oil are filtered through the pores of the cylindrical structure, realizing the second layer of degassing.

[0039] Afterwards, all the gas filtered out through the pores is discharged to the air space of the oil tank through the exhaust oil blocker 3 through the outlet hole 12. The exhaust oil blocker 3 can block the outflow of lubricating oil while exhausting the gas, thereby realizing the third layer of degassing. The three-layer degassing ensures the degassing effect, and the overall degassing performance is good, which can efficiently remove the gas in the gas-containing lubricating oil.

[0040] Preferably, the exhaust oil resistor 3 is arranged on the top of the outside of the oil tank housing 100 .

[0041] Specifically, the exhaust oil blocker 3 is used to remove gas from the lubricating oil and prevent it from overflowing. This blocker utilizes the temperature effect of the memory metal. When accumulated bubbles gradually merge to form large bubbles, the temperature is lower, allowing the gas to be discharged into the tank's air space through the exhaust core. Once the gas is exhausted, the hot oil in the tank gradually rises to a higher level, submerging the exhaust nozzle. The exhaust nozzle, influenced by the temperature effect of the memory metal, automatically closes, preventing the lubricating oil from escaping from the exhaust nozzle into the tank's air space. This effectively removes gas from the lubricating oil, improving lubrication efficiency and reducing cavitation noise during lubricating oil system operation.

[0042] In one embodiment, the cylinder structure includes a cylindrical metal shell 1 that is axially vertically arranged, and the oil inlet 11 and the air outlet 12 are respectively arranged on the metal top plate and the metal bottom plate of the metal shell 1.

[0043] The metal shell 1 has a hollowed-out sidewall, where a filter element 2 is located. The filter element 2 has several pores for filtering aerated oil. The pore size of the filter element 2 is 125 μm, which can effectively remove bubbles with a diameter of 0.1 to 1 mm in aerated oil.

[0044] The lubricating oil filtering and degassing system of the present application has a cylindrical metal shell 1, the side wall of the metal shell 1 is partially hollowed out and used to nest the filter element 2, and the partially hollowed metal shell 1 forms a supporting frame, and the overall structure is stable and reliable.

[0045] In another embodiment, the cylindrical structure comprises a bottom plate with an oil inlet 11, a top plate with an air outlet 12, and a tubular filter element 2. The filter element 2 is vertically positioned and clamped between the bottom and top plates. The bottom, top, and filter element 2 together form the cylindrical structure. The filter element 2 has several pores for filtering aerated oil. The pore size of the filter element 2 is 125 μm, effectively removing bubbles with a diameter of 0.1 to 1 mm from aerated oil.

[0046] The lubricating oil filtering and degassing system of the present application has a cylindrical structure comprising a tubular filter element 2 , which has a large filtering area and high degassing efficiency.

[0047] In one embodiment, the fuel tank housing 100 further includes a partition 1001, which forms a semi-enclosed area around the lower half of the cylindrical structure, forming a degassing zone 102. After being filtered, aerated lubricating oil reaches degassing zone 102. Degassing zone 102 and oil suction zone 103 are located on either side of partition 1001, with oil suction zone 103 located below degassing zone 102.

[0048] The lubricating oil filtration and degassing system of the present application is specially provided with a partition 1001 to separate the degassing area 102 and the oil suction area 103. The degassed lubricating oil needs to bypass the partition 1001 and then be sucked away by the oil pump. The partition 1001 extends the flow path of the degassed lubricating oil, avoids the eddy current at the oil suction port from affecting the pore filtration of the cylindrical structure, and creates a stable filtration environment.

[0049] In one embodiment, the oil return area 101 has an L-shaped cross-section and comprises a horizontal cavity area and a vertical cavity area. The vertical cavity area receives the aerated oil output from the lubricating oil equipment 104 via a pipeline. An overflow port 1011 is provided on the top sidewall of the vertical cavity area. The horizontal cavity area is connected to the interior of the cylindrical structure via the oil inlet 11.

[0050] In the lubricating oil filtration and degassing system of the present application, the oil return area 101 forms an L-shaped flow channel, which is used to receive the aerated lubricating oil of the lubricating oil equipment. The vertical cavity area utilizes the buoyancy of bubbles, and the overflow port 1011 eliminates large-sized bubbles. On the other hand, the L-shaped flow channel forms a buffer zone, which reduces the flow rate of the aerated lubricating oil and evenly guides the aerated lubricating oil into the cylindrical structure to achieve smooth and uniform filtration.

[0051] Furthermore, a lubricating oil pump 4 is provided in the pipeline between the oil suction area 103 and the lubricating oil equipment 104 to provide power. The lubricating oil pump 4 is used to provide flow power to the filtered lubricating oil in the oil suction area 103 and to guide the filtered lubricating oil into the lubricating oil equipment 104.

[0052] Furthermore, in one embodiment, a safety valve 6 is provided in the exhaust pipe between the air outlet 12 and the inlet of the exhaust oil blocker 3 . When the pressure of the safety valve 6 exceeds the normal working pressure, the gas is discharged back into the oil tank housing 100 through the safety valve 6 .

[0053] In the lubricating oil filtering and degassing system of the present application, a safety valve 6 is provided on the exhaust pipe between the air outlet 12 and the inlet of the exhaust oil blocker 3. The safety valve 6 can ensure that the exhaust oil blocker 3 is always within the safe air pressure working range, thereby improving the filtering safety of the exhaust oil blocker.

[0054] In one embodiment, the lubricating oil filtering and degassing system further comprises an induced draft fan 5, which discharges the gas in the oil tank housing 100 to the outside through a pipeline. Specifically, the induced draft fan 5 is turned on only when needed.

[0055] In a second aspect, the present application further discloses a degassing method based on the above-mentioned lubricating oil filtration and degassing system, comprising the following steps:

[0056] During the lubrication process, the lubricating oil equipment 104 produces aerated lubricating oil, which is transported to the oil return area 101 through a pipeline; at the same time, large-sized bubbles of the aerated lubricating oil gather at the top of the oil return area 101 and flow into the air space of the oil tank through the overflow port 1011.

[0057] The aerated lubricating oil in the oil return area 101 enters the interior of the cylindrical structure through the oil inlet 11, and the pores on the circumferential side wall of the cylindrical structure filter out the entrained bubbles in the aerated lubricating oil. At this time, the pores on the circumferential side wall of the cylindrical structure mainly filter out small-sized bubbles; the filtered lubricating oil is discharged from the circumferential side wall of the cylindrical structure and enters the oil suction area 103, and the filtered bubbles gather at the top of the cylindrical structure.

[0058] The gas at the top of the cylinder structure is exhausted and oil-blocked by the exhaust oil blocker 3, and the lubricating oil in the oil suction area 103 is transported to the lubricating oil equipment through a pipeline;

[0059] In the degassing method of the present application, while the aerated lubricating oil is transported to the oil return area 101 through a pipeline, large-sized bubbles of the aerated lubricating oil gather at the top of the oil return area 101 and flow to the oil tank air space through the overflow port 1011, thereby realizing the first layer of degassing; thereafter, the aerated lubricating oil in the oil return area 101 enters the interior of the cylindrical structure through the oil inlet port 11, and the pores on the circumferential side wall of the cylindrical structure filter the entrained bubbles of the aerated lubricating oil and filter the small-sized bubbles, thereby realizing the second layer of degassing; thereafter, the gas filtered out through the pores is all discharged to the oil tank air space through the exhaust oil stopper 3 through the air outlet 12, and the exhaust oil stopper 3 can block the outflow of lubricating oil while exhausting the gas, thereby realizing the third layer of degassing. The three-layer degassing ensures the degassing effect, has good overall degassing performance, and can efficiently remove the gas in the aerated lubricating oil.

[0060] Regarding the degassing method, in one embodiment, the oil return area 101 has an L-shaped cross-section, comprising a horizontal cavity area and a vertical cavity area. The vertical cavity area receives the aerated oil output from the lubricating oil equipment 104 via a pipeline, and an overflow port 1011 is provided on the top sidewall of the vertical cavity area. The horizontal cavity area is connected to the interior of the cylindrical structure via the oil inlet 11.

[0061] The aerated lubricating oil is transported to the oil return area 101 through a pipeline, which includes:

[0062] The aerated lubricating oil is transported to the vertical cavity area of ​​the oil return area 101 through a pipeline. The large bubbles of the aerated lubricating oil gather at the top of the vertical cavity area and flow into the air space of the oil tank through the overflow port 1011.

[0063] The gas-containing lubricating oil in the oil return area 101 enters the cylinder structure through the oil inlet 11, including:

[0064] The air-containing lubricating oil in the horizontal cavity area enters the cylindrical structure through the oil inlet 11.

[0065] In the degassing method of the present application, the oil return area 101 forms an L-shaped flow channel, which is used to receive the aerated lubricating oil of the lubricating oil equipment. The vertical cavity area utilizes the buoyancy of bubbles, and the overflow port 1011 eliminates large-sized bubbles. On the other hand, the L-shaped flow channel forms a buffer zone to reduce the flow rate of the aerated lubricating oil, and evenly introduces the aerated lubricating oil into the cylindrical structure to achieve smooth and uniform filtration.

[0066] Regarding the degassing method, in one embodiment, the cylinder structure comprises a cylindrical metal shell 1, arranged vertically in the axial direction. The oil inlet 11 and the air outlet 12 are located on the metal top and bottom plates of the metal shell 1, respectively. The sidewalls of the metal shell 1 are partially hollowed out, and a filter element 2 is positioned within the hollowed-out portion. The filter element 2 has several apertures for filtering aerated lubricating oil. The pore size of the filter element 2 is 125 μm, effectively removing bubbles with a diameter of 0.1 to 1 mm from aerated lubricating oil.

[0067] The degassing method of the present application has a cylindrical metal shell 1, the side wall of the metal shell 1 is partially hollowed out and used to nest the filter element 2. The partially hollowed metal shell 1 forms a supporting frame, and the overall structure is stable and reliable.

[0068] Regarding the degassing method, in another embodiment, a cylindrical structure comprises a bottom plate with an oil inlet 11, a top plate with an air outlet 12, and a tubular filter element 2. The filter element 2 is vertically positioned and clamped between the bottom and top plates. The bottom, top, and filter element 2 together form the cylindrical structure. The filter element 2 has several pores for filtering aerated lubricating oil. The pore size of the filter element 2 is 125 μm, which can effectively remove bubbles with a diameter of 0.1 to 1 mm from aerated lubricating oil.

[0069] The degassing method of the present application comprises a cylindrical structure comprising a tubular filter element 2, which has a large filtering area and high degassing efficiency.

[0070] Regarding the degassing method, in one embodiment, the oil tank housing 100 further includes a baffle 1001, which encloses the lower half of the cylindrical structure into a semi-enclosed area, forming a degassing zone 102. After being filtered, the aerated lubricating oil reaches the degassing zone 102. The degassing zone 102 and the oil suction zone 103 are located on either side of the baffle 1001, with the oil suction zone 103 located at the lower level of the degassing zone 102.

[0071] The degassing method of the present application is to specially set up a partition 1001 to separate the degassing area 102 and the oil suction area 103. The degassed lubricating oil needs to bypass the partition 1001 and then be sucked away by the oil pump. The partition 1001 extends the flow path of the degassed lubricating oil, avoids the vortex of the oil suction port from affecting the pore filtration of the cylindrical structure, and creates a stable filtration environment.

[0072] Furthermore, a lubricating oil pump 4 is provided in the pipeline between the oil suction area 103 and the lubricating oil equipment 104 to provide power. The lubricating oil pump 4 is used to provide flow power to the filtered lubricating oil in the oil suction area 103 and to guide the filtered lubricating oil into the lubricating oil equipment 104.

[0073] Furthermore, in one embodiment, a safety valve 6 is provided in the exhaust pipe between the air outlet 12 and the inlet of the exhaust oil blocker 3 . When the pressure of the safety valve 6 exceeds the normal working pressure, the gas is discharged back into the oil tank housing 100 through the safety valve 6 .

[0074] In the degassing method of the present application, a safety valve 6 is provided on the exhaust pipe between the air outlet 12 and the inlet of the exhaust oil blocker 3. The safety valve 6 can ensure that the exhaust oil blocker 3 is always within the safe air pressure working range, thereby improving the filtering safety of the exhaust oil blocker.

[0075] In the description of this application, it should be noted that the terms "upper" and "lower" and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing this application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on this application. Unless otherwise clearly specified and limited, the terms "installed", "connected", and "connected" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or an indirect connection through an intermediate medium, or it can be internal communication between two elements. For those of ordinary skill in the art, the specific meanings of the above terms in this application can be understood according to the specific circumstances.

[0076] It should be noted that, in this application, relational terms such as "first" and "second" are used only to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any actual relationship or order between these entities or operations. Moreover, the terms "include", "comprise" or any other variants thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device comprising a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article or device. In the absence of further restrictions, an element defined by the sentence "comprising a ..." does not exclude the presence of other identical elements in the process, method, article or device comprising the element.

[0077] The foregoing is merely a list of specific embodiments of the present application, intended to enable those skilled in the art to understand or implement the present application. Various modifications to these embodiments will be readily apparent to those skilled in the art, and the general principles defined herein may be implemented in other embodiments without departing from the spirit or scope of the present application. Therefore, the present application is not limited to the embodiments shown herein, but is intended to conform to the broadest scope consistent with the principles and novel features of the present application.

Claims

1. A lubricating oil filtration and degassing system with exhaust and oil blocking, characterized in that: Include: The oil tank shell (100) is divided into an oil suction area (103) and an oil return area (101), wherein the oil suction area (103) supplies oil to the lubricating oil equipment (104) through a pipeline, and the oil return area (101) receives the gas-containing lubricating oil output by the lubricating oil equipment (104) through a pipeline. An overflow port (1011) is reserved at the top of the oil return area (101), and the overflow port (1011) leads to the gas space of the oil tank; the height of the overflow port (1011) is higher than the height of the connection between the oil return area (101) and the pipeline; A degassing device comprises an exhaust oil blocker (3) and a vertical cylindrical structure, wherein an oil inlet (11) is provided at the bottom of the cylindrical structure, and the oil inlet (11) is connected to an oil return area (101); an air outlet (12) is provided at the top of the cylindrical structure, and a plurality of pores for filtering aerated lubricating oil are provided along the entire height of the circumferential side wall of the cylindrical structure; one end of the exhaust oil blocker (3) is connected to the air outlet (12) via a pipeline, and the other end is connected to the air space of the oil tank via a pipeline; The oil tank shell (100) further comprises a partition (1001), wherein the partition (1001) encloses the outer circumference of the lower half of the cylindrical structure into a semi-enclosed area, forming a degassing area (102); the degassing area (102) and the oil absorption area (103) are respectively located on both sides of the partition (1001), so that the lubricating oil after degassing needs to bypass the partition (1001); The oil return area (101) is L-shaped, and the L-shaped oil return area (101) includes a horizontal cavity area and a vertical cavity area. The vertical cavity area receives the gas-containing oil output by the lubricating oil equipment (104) through a pipeline, and the horizontal cavity area is connected to the cylindrical structure through an oil inlet (11).

2. The lubricating oil filtration and degassing system for exhaust and oil blocking according to claim 1, characterized in that: The cylinder structure comprises a cylindrical metal shell (1) arranged vertically in the axial direction, and the oil inlet (11) and the air outlet (12) are respectively arranged on the metal top plate and the metal bottom plate of the metal shell (1); The side wall portion of the metal shell (1) is hollowed out, and a filter element (2) is provided at the hollowed-out portion. The filter element (2) is provided with a plurality of pores for filtering the gas-containing lubricating oil.

3. The lubricating oil filtration and degassing system for exhaust and oil blocking according to claim 1, characterized in that: The cylindrical structure comprises a bottom plate with an oil inlet (11), a top plate with an air outlet (12), and a tubular filter element (2), wherein the axis of the filter element (2) is vertically arranged and clamped between the bottom plate and the top plate; the filter element (2) is provided with a plurality of pores for filtering the air-containing lubricating oil.

4. The lubricating oil filtration and degassing system for exhaust and oil blocking according to claim 1, characterized in that: The oil absorption zone (103) is located at a lower position than the degassing zone (102).

5. The lubricating oil filtration and degassing system for exhaust and oil blocking according to claim 1, characterized in that: The overflow port (1011) is arranged on the top side wall of the vertical cavity area.

6. The lubricating oil filtration and degassing system for exhaust and oil blocking according to claim 1, characterized in that: A lubricating oil pump (4) is provided in the pipeline between the oil suction area (103) and the lubricating oil equipment (104) to provide power.

7. The lubricating oil filtration and degassing system for exhaust and oil blocking according to claim 1, characterized in that: A safety valve (6) is provided in the exhaust pipe between the air outlet hole (12) and the inlet of the exhaust oil blocker (3). When the pressure of the safety valve (6) exceeds the normal operating pressure, the gas is discharged back into the oil tank housing (100) through the safety valve (6).

8. The lubricating oil filtration and degassing system for exhaust and oil blocking according to claim 1, characterized in that: The lubricating oil filtering and degassing system further comprises an induced draft fan (5), and the induced draft fan (5) discharges the gas in the oil tank housing (100) to the outside through a pipeline.

9. A degassing method based on the lubricating oil filtration and degassing system according to claim 1, characterized in that: The following steps are involved: The lubricating oil equipment (104) generates aerated lubricating oil during the lubrication process, and the aerated lubricating oil is transported to the oil return area (101) through a pipeline; at the same time, large-sized bubbles of the aerated lubricating oil gather at the top of the oil return area (101) and flow into the air space of the oil tank through the overflow port (1011); The aerated lubricating oil in the oil return area (101) enters the cylindrical structure through the oil inlet (11), and the pores in the circumferential side wall of the cylindrical structure filter the air bubbles entrained in the aerated lubricating oil; the filtered lubricating oil is discharged from the circumferential side wall of the cylindrical structure and enters the oil suction area (103), and the filtered bubbles are collected at the top of the cylindrical structure; The lubricating oil in the oil suction area (103) is input to the lubricating oil equipment through a pipeline; the gas at the top of the cylinder structure is exhausted and oil-blocked through the exhaust oil blocker (3).

10. The degassing method for a lubricating oil filtration and degassing system according to claim 9, wherein: The overflow port (1011) is provided on the top side wall of the vertical cavity area; the gas-containing lubricating oil is transported to the oil return area (101) through a pipeline, comprising: The aerated lubricating oil is transported to the vertical cavity area of ​​the oil return area (101) through a pipeline, and large-sized bubbles of the aerated lubricating oil are gathered at the top of the vertical cavity area and flow into the air space of the oil tank through the overflow port (1011); The gas-containing lubricating oil in the oil return area (101) enters the cylindrical structure through the oil inlet (11), comprising: The air-containing lubricating oil in the horizontal cavity area enters the cylindrical structure through the oil inlet (11).

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