Lubricating oil filtering and degassing device capable of exhausting and blocking oil and degassing method

Abstract

The invention relates to the technical field of lubricating oil purification, and discloses a lubricating oil filtering and degassing device capable of exhausting and blocking oil and a degassing method.The lubricating oil filtering and degassing device 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 lubricating oil equipment through a pipeline, and the oil return area receives gas-containing lubricating oil output by the lubricating oil equipment through a pipeline; a gas overflow opening is reserved in the top of the oil return area and leads to the oil tank gas space. The gas overflow port is higher than the joint of the oil return area and the pipeline; the degassing device comprises an exhaust oil stopper and a barrel structure, an oil inlet is formed in the bottom of the barrel structure, and the oil inlet is communicated with the oil return area; a gas outlet is formed in the top of the barrel structure, and a plurality of pores for filtering gas-containing lubricating oil are formed in the whole height of the circumferential side wall of the barrel structure; one end of the exhaust oil stopper is connected to the air outlet through a pipeline, and the other end is connected to the oil tank air space through a pipeline. According to the lubricating oil filtering and degassing device and method, the volume utilization rate of the oil tank is increased, and meanwhile the degassing performance is improved.

Description

Technical Field

[0001] The 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] At present, in today's industrial field, the performance of lubricating oil is crucial to the efficient operation of mechanical equipment. However, as the running time increases, bubbles will gradually accumulate in the lubricating oil, which will not only affect its lubrication effect, but also produce cavitation noise.

[0003] In the related art, the traditional lubricating oil filtering and degassing device relies on the filter screen to filter and degas. The filter screen forms a vertical cylinder. During operation, gas will gather in the cylinder. By setting exhaust holes on the circumferential side wall of the upper part of the cylinder, the gathered gas will overflow into the gas space of the oil tank. This degassing device is installed inside the oil tank. The bubbles in the lubricating oil are captured and gathered inside the filter screen to form large bubbles, which escape to the space above the oil surface through the exhaust holes.

[0004] However, the degassing device has certain limitations. On the one hand, the upper 1 / 3 to 1 / 2 of the degassing device must be exposed above the liquid level of the oil tank for exhaust, and the oil tank volume utilization rate is low. On the other hand, if the return oil volume or gas content increases, the lubricating oil with entrained gas will flow through the exhaust holes above 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 for exhausting and oil blocking, which improve the volume utilization rate of the oil tank and improve the degassing performance at the same time.

[0006] In a first aspect, an embodiment of the present application provides a lubricating oil filtration and degassing system for 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 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 the 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;

[0008] A degassing device comprises an exhaust oil blocker and a vertical cylindrical structure, wherein 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 throughout 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 pipeline, and the other end is connected to the air space of the oil tank through a pipeline.

[0009] In combination with the first aspect, in one embodiment, the cylinder structure includes an axially vertically arranged and cylindrical metal shell, 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 hollow part, and the filter element is provided with a plurality 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 filter element axis 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 of 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 implementation, a lubricating oil pump providing 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 filtering and degassing system further includes an induced draft fan, which discharges the gas in the oil tank housing 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] The lubricating oil equipment generates aerated lubricating oil during the lubrication process, and the aerated lubricating oil is transported to the oil return area 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 to the gas space of the oil tank through the overflow port 1011;

[0018] The gas-containing lubricating oil in the oil return zone enters the cylinder structure through the oil inlet, and the pores in the circumferential side wall of the cylinder structure filter the entrained bubbles of the gas-containing lubricating oil; the filtered lubricating oil is discharged from the circumferential side wall of the cylinder structure and enters the oil suction zone, and the filtered bubbles are collected at the top of the cylinder 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 combination 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 arranged on the top side wall of the vertical cavity area; the horizontal cavity area is connected to the cylinder structure through an oil inlet; the gas-containing lubricating oil is transported to the oil return area through a pipeline, including:

[0021] The aerated lubricating oil is transported to the vertical cavity area of ​​the oil return area through the pipeline, and the large-sized bubbles of the aerated lubricating oil are gathered at the top of the vertical cavity area and flow to the gas space of the oil tank through the overflow port 1011;

[0022] The gas-containing lubricating oil in the oil return zone enters the cylinder structure through the oil inlet, comprising:

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

[0024] The beneficial effects brought by the technical solution provided by the embodiment 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 cylinder structure of the degassing device, and a plurality of pores for filtering the aerated lubricating oil are arranged throughout the entire height of the circumferential side wall of the cylinder structure. The highest liquid level of the aerated lubricating oil can basically reach the height of the cylinder 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 gas 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 aerated lubricating oil 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 cylinder 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 the bubbles, and the overflow port 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 guides the aerated lubricating oil into the cylinder 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 a 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 the small-sized bubbles, thereby realizing the second layer of degassing; thereafter, 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, 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 drawings required for use in the description of the embodiments will be briefly introduced below. 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 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 solution of the present application, the technical solution in the embodiments of the present application will be clearly and completely described below in conjunction with the drawings in the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, not all of the embodiments. Based on the embodiments in the present application, 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, thereby 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 comprises 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 input port of the lubricating oil equipment 104 through a pipeline, and the oil suction area 103 supplies oil to the lubricating oil equipment 104. The oil return area 101 is connected to the lubricating oil input port of the lubricating oil equipment 104 through a pipeline, and the oil return area 101 receives the gas-containing lubricating oil (i.e., the lubricating oil containing fine bubbles and to be filtered) output by the lubricating oil equipment 104. The top of the oil return area 101 is reserved with an overflow port 1011, which leads to the gas space of the oil tank, and 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 gas-containing lubricating oil. An air outlet 12 is provided at the top of the cylindrical structure, and a plurality of pores for filtering the gas-containing lubricating oil are provided on the circumferential side wall of the cylindrical structure. The pores can filter the fine bubbles in the gas-containing 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 gas 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, and the exhaust oil blocker 3 discharges gas and blocks lubricating oil. After the gas passes through the exhaust oil blocker 3, it enters the gas space of the oil tank.

[0037] In the lubricating oil filtering and degassing system of the present application, the air outlet 12 is 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 throughout the entire height of the circumferential side wall of the cylindrical structure, and the highest liquid level of the aerated lubricating oil can basically reach the height of the cylindrical structure. Compared with the traditional lubricating oil filtering and degassing device, 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 shell 100. The overflow port 1011 leads to the oil tank gas 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 gas-containing lubricating oil is input into the oil return area 101, the large-sized bubbles in the gas-containing lubricating oil will gradually gather to the top of the oil tank shell 100 under the action of buoyancy, and be discharged to the oil tank gas space through the overflow port 1011, so as to realize the first layer of degassing. Afterwards, the small-sized bubbles in the gas-containing lubricating oil are filtered through the pores of the cylinder structure, so as to realize the second layer of degassing.

[0039] Afterwards, all the gases filtered out through the pores are 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 blocker 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 the lubricating oil from overflowing. The exhaust oil blocker 3 uses the temperature effect of the memory metal. When the accumulated bubbles gradually merge to form large bubbles, the temperature is low at this time, and the gas can be discharged to the gas space of the oil tank through the exhaust core; when the gas is exhausted, the hot oil in the oil tank gradually increases the liquid level and immerses the exhaust nozzle. Under the influence of the temperature effect of the memory metal, the exhaust nozzle automatically closes to prevent the lubricating oil from being discharged from the exhaust nozzle into the gas space of the oil tank. The exhaust oil blocker 3 can effectively remove the gas in the lubricating oil, improve the lubrication effect, and reduce the cavitation noise of the lubricating oil system.

[0042] In one embodiment, the cylinder structure comprises a cylindrical metal shell 1 which 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 side wall of the metal shell 1 is partially hollowed out, and a filter element 2 is arranged at the hollowed out part. The filter element 2 is provided with a plurality of pores for filtering the gas-containing lubricating oil. The pore size of the filter element 2 is 125um, which can effectively remove bubbles with a diameter of 0.1 to 1mm in the gas-containing lubricating 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 for nesting 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 cylinder structure includes a bottom plate with an oil inlet 11, a top plate with an air outlet 12, and a tubular filter element 2. The axis of the filter element 2 is vertically arranged and clamped between the bottom plate and the top plate. The bottom plate, the top plate and the filter element 2 are enclosed to form a cylinder structure. The filter element 2 is provided with a plurality of pores for filtering the gas-containing lubricating oil. The pore size of the filter element 2 is 125um, which can effectively remove bubbles with a diameter of 0.1 to 1mm in the gas-containing lubricating oil.

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

[0047] In one embodiment, the oil tank housing 100 further includes a partition 1001, which encloses the lower half of the cylinder structure into a semi-enclosed area to form a degassing area 102. The gas-containing lubricating oil reaches the degassing area 102 after being filtered. The degassing area 102 and the oil suction area 103 are respectively located on both sides of the partition 1001, and the oil suction area 103 is located at the lower position of the degassing area 102.

[0048] The lubricating oil filtering 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 cylinder structure, and creates a stable filtration environment.

[0049] In one embodiment, the cross section of 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 overflow port 1011 is set on the top side wall of the vertical cavity area. The horizontal cavity area is connected to the inside of the cylinder structure through the oil inlet 11.

[0050] In the lubricating oil filtering and degassing system of the present application, the oil return area 101 forms an L-shaped flow channel, and its function is 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 cylinder structure to achieve smooth and uniform filtration.

[0051] Furthermore, a lubricating oil pump 4 providing power is provided in the pipeline between the oil suction area 103 and the lubricating oil equipment 104 . 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 , and 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 also discloses a degassing method based on the above lubricating oil filtration and degassing system, comprising the following steps:

[0056] During the lubrication process, the lubricating oil equipment 104 generates 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 to the air space of the oil tank through the overflow port 1011.

[0057] The gas-containing lubricating oil in the oil return area 101 enters the interior of the cylinder structure through the oil inlet 11, and the pores in the circumferential side wall of the cylinder structure filter the entrained bubbles of the gas-containing lubricating oil. At this time, the pores in the circumferential side wall of the cylinder structure mainly filter small-sized bubbles; the filtered lubricating oil is discharged from the circumferential side wall of the cylinder structure and enters the oil suction area 103, and the filtered bubbles gather at the top of the cylinder 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 in the aerated lubricating oil gather at the top of the oil return area 101 and flow to the air space of the oil tank 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 cylinder structure through the oil inlet port 11, and the pores on the circumferential side wall of the cylinder 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 air space of the oil tank through the air outlet 12 through the exhaust oil stopper 3, 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 cross section of 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 overflow port 1011 is set on the top side wall of the vertical cavity area. The horizontal cavity area is connected to the inside of the cylinder structure through the oil inlet 11.

[0061] The gas-containing lubricating oil is transported to the oil return area 101 through a pipeline, including:

[0062] The aerated lubricating oil is transported to the vertical cavity area of ​​the oil return area 101 through a pipeline, and the large-sized bubbles of the aerated lubricating oil are gathered at the top of the vertical cavity area and flow to the gas 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 gas-containing lubricating oil in the horizontal cavity area enters into the cylinder 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 gas-containing lubricating oil of the lubricating oil equipment. The vertical cavity area utilizes the buoyancy of the 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 gas-containing lubricating oil, and evenly guides the gas-containing lubricating oil into the cylinder structure to achieve smooth and uniform filtration.

[0066] Regarding the degassing method, 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. The side wall of the metal shell 1 is partially hollowed out, and a filter element 2 is arranged at the hollowed-out part, and the filter element 2 is provided with a plurality of pores for filtering the gas-containing lubricating oil. The pore size of the filter element 2 is 125um, which can effectively remove bubbles with a diameter of 0.1 to 1mm in the gas-containing lubricating oil.

[0067] The degassing method of the present application has a cylindrical metal shell 1 as the barrel structure, a part of the side wall of the metal shell 1 is hollowed out and used for nesting the filter element 2, and the part of the hollowed-out metal shell 1 forms a supporting frame, and the overall structure is stable and reliable.

[0068] Regarding the degassing method, in another embodiment, the cylinder structure includes a bottom plate with an oil inlet 11, a top plate with an air outlet 12, and a tubular filter element 2. The axis of the filter element 2 is vertically arranged and clamped between the bottom plate and the top plate. The bottom plate, the top plate and the filter element 2 are enclosed to form a cylinder structure. The filter element 2 is provided with a plurality of pores for filtering the gas-containing lubricating oil. The pore size of the filter element 2 is 125um, which can effectively remove bubbles with a diameter of 0.1 to 1mm in the gas-containing lubricating oil.

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

[0070] Regarding the degassing method, in one embodiment, the oil tank housing 100 further includes a partition 1001, and the partition 1001 encloses the outer circumference of the lower half of the cylinder structure into a semi-enclosed area to form a degassing area 102. After being filtered, the gas-containing lubricating oil reaches the degassing area 102. The degassing area 102 and the oil absorption area 103 are respectively located on both sides of the partition 1001, and the oil absorption area 103 is located at the lower position of the degassing area 102.

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

[0072] Furthermore, a lubricating oil pump 4 providing power is provided in the pipeline between the oil suction area 103 and the lubricating oil equipment 104 . 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 , and 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 arranged 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 the present application, it should be noted that the terms "upper", "lower", etc. 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 the present application and simplifying the description, rather than indicating or implying 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 the present 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 it can be an indirect connection through an intermediate medium, or it can be a connection between the two elements. For those of ordinary skill in the art, the specific meanings of the above terms in the present 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 only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any such 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 including 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, the elements defined by the sentence "comprise a ..." do not exclude the presence of other identical elements in the process, method, article or device including the elements.

[0077] The above description is only a specific implementation of the present application, so that those skilled in the art can understand or implement the present application. Various modifications to these embodiments will be apparent to those skilled in the art, and the general principles defined herein can be implemented in other embodiments without departing from the spirit or scope of the present application. Therefore, the present application will not be limited to the embodiments shown herein, but will conform to the widest range consistent with the principles and novel features applied for herein.

Claims

1. A lubricating oil filtration and degassing system for exhaust and oil blocking, characterized in that: Include: The oil tank housing (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, and an overflow port (1011) is reserved at the top of the oil return area (101), and the overflow port (1011) leads to the oil tank gas 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; A degassing device comprises an exhaust oil blocker (3) and a vertical cylinder structure, wherein an oil inlet (11) is provided at the bottom of the cylinder 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 cylinder structure, and a plurality of pores for filtering aerated lubricating oil are provided along the entire height of the circumferential side wall of the cylinder structure; 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.

2. The lubricating oil filtration and degassing system for exhaust and oil blocking as claimed in claim 1, characterized in that: The cylinder structure comprises a cylindrical metal shell (1) which 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); The side wall portion of the metal shell (1) is hollowed out, and a filter element (2) is arranged 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 as claimed in 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); the filter element (2) is vertically arranged with its axis clamped between the bottom plate and the top plate; the filter element (2) is provided with a plurality of pores for filtering gas-containing lubricating oil.

4. The lubricating oil filtration and degassing system for exhaust and oil blocking as claimed in claim 1, characterized in that: 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 to form a degassing area (102); the degassing area (102) and the oil absorption area (103) are respectively located on both sides of the partition (1001), and the oil absorption area (103) is located at a lower position than the degassing area (102).

5. The lubricating oil filtration and degassing system for exhaust and oil blocking as claimed in claim 1, characterized in that: 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 overflow port (1011) is arranged on the top side wall of the vertical cavity area; the horizontal cavity area is connected to the cylinder structure through the oil inlet (11).

6. The lubricating oil filtration and degassing system for exhaust and oil blocking as claimed in claim 1, characterized in that: The pipeline between the oil suction area (103) and the lubricating oil equipment (104) is provided with a lubricating oil pump (4) for providing power.

7. The lubricating oil filtration and degassing system for exhaust and oil blocking as claimed in claim 1, characterized in that: A safety valve (6) is arranged on 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 working 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 as claimed in 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 to the gas space of the oil tank through the overflow port 1011; The gas-containing lubricating oil in the oil return area (101) enters the cylinder structure through the oil inlet (11), and the pores in the circumferential side wall of the cylinder structure filter the entrained bubbles of the gas-containing lubricating oil; the filtered lubricating oil is discharged from the circumferential side wall of the cylinder structure and enters the oil suction area (103), and the filtered bubbles are collected at the top of the cylinder structure; The lubricating oil in the oil suction area (103) is input into 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 according to claim 9, characterized in that: 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 overflow port (1011) is arranged on the top side wall of the vertical cavity area; the horizontal cavity area is connected to the cylinder structure through the oil inlet (11); the gas-containing lubricating oil is transported to the oil return area (101) through a pipeline, and includes: 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 to the gas space of the oil tank through the overflow port 1011; The gas-containing lubricating oil in the oil return area (101) enters the cylinder structure through the oil inlet (11), comprising: The air-containing lubricating oil in the horizontal cavity area enters the cylinder structure through the oil inlet (11).

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