Engine fuel collection system and gas-liquid separation device
By using first and second impellers for gas-liquid separation in the engine fuel collection system, the risk of explosion caused by liquid fuel leaking into the cylinder is solved, achieving safe gas-liquid separation and collection.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Applications(China)
- Current Assignee / Owner
- THE 711TH RES INST OF CHINA STATE SHIPBUILDING CORP
- Filing Date
- 2026-04-03
- Publication Date
- 2026-05-29
Smart Images
Figure CN122106741A_ABST
Abstract
Description
Technical Field
[0001] This application relates to the field of marine engine technology, and in particular to an engine fuel collection system and a gas-liquid separation device. Background Technology
[0002] After an engine has been shut down for an extended period of time, liquid fuels (such as fuel oil, methanol, ethanol, ammonia, and biodiesel) may leak into the cylinders and remain inside due to poor sealing of components or exceeding their service life.
[0003] To remove residual liquid from the cylinder, a "blowing" operation is typically used to compress the liquid during the blasting process and then eject it from the cylinder through an indicator valve. However, some existing liquid fuels (such as methanol and ammonia) are toxic and explosive. If these liquid fuels are blown out of the cylinder, the liquid is ejected with a high-speed airflow, and the ejected material is a gas-liquid mixture. In the enclosed environment of the engine room, this will form a toxic liquid fuel aerosol, which can easily form an explosive gas-liquid mixture, thus posing a safety hazard. Summary of the Invention
[0004] This application provides an engine fuel collection system, which aims to solve the technical problem that when toxic and explosive liquid fuel is directly blown out of the cylinder, it will form liquid fuel mist in the closed environment of the engine compartment, which is very easy to form an explosive gas-liquid mixture, thus posing a safety hazard; another objective of this application is to provide a gas-liquid separation device.
[0005] To achieve the above objectives, according to a first aspect of this application, an engine fuel collection system is provided, comprising: Cylinder block; Indicator valve, located in the cylinder body; The housing and the air inlet pipe, wherein the housing has a collection chamber, the air inlet pipe is disposed in the collection chamber, and the air inlet end of the air inlet pipe is connected to the indicator valve; A first impeller and a second impeller are rotatably disposed within the collection chamber. The first impeller is disposed opposite to the outlet end of the air inlet pipe in a first direction. The first impeller guides at least a portion of the medium from the outlet end toward the inner peripheral wall of the housing. The second impeller is annular, and the inner peripheral wall of the housing is arranged around the second impeller. The second impeller is used to guide the medium guided by the first impeller toward the inner bottom wall of the housing. A cover plate is disposed at the opening of the collection chamber and connected to the housing; An exhaust pipe is provided on the cover plate and connects to the collection chamber.
[0006] Optionally, the inner peripheral wall of the housing is provided with a flow-dispersing element, which is located below the second impeller along the first direction.
[0007] Optionally, the spoiler extends along a spiral trajectory.
[0008] Optionally, the number of the aerodynamic components is provided in multiples, and the multiple aerodynamic components are arranged circumferentially along the inner peripheral wall of the housing, and the aerodynamic components extend along the first direction.
[0009] Optionally, the engine fuel collection system further includes a guide vane, which is arranged around the outlet end of the intake pipe. The side of the guide vane away from the intake pipe is arranged above the first impeller along a first direction and spaced apart from the inner peripheral wall of the housing. The guide vane is provided with a vent hole.
[0010] Optionally, in the first direction, the side of the guide vane near the air intake pipe is lower than the side of the guide vane near the second impeller.
[0011] Optionally, the inner peripheral wall of the shell is provided with a first peripheral surface, a stepped surface and a second peripheral surface, the inner diameter of the first peripheral surface is larger than the inner diameter of the second peripheral surface, and the stepped surface connects the first peripheral surface and the second peripheral surface respectively; The second impeller is disposed between the guide plate and the stepped surface, and is disposed corresponding to the first peripheral surface.
[0012] Optionally, the exhaust pipe passes through the guide plate.
[0013] Optionally, the outer peripheral wall of the portion of the exhaust pipe located below the guide plate is provided with multiple air holes.
[0014] Optionally, the exhaust pipe is provided with a filter layer that covers a plurality of the air holes.
[0015] Optionally, the engine fuel collection system further includes a threaded interface disposed at the bottom of the housing, the intake end of the exhaust pipe being connected to the bottom of the housing and communicating with the threaded interface, the threaded interface being connected to the indicator valve so that the exhaust pipe is connected to the indicator valve through the threaded interface.
[0016] Optionally, the engine fuel collection system further includes a collection tank disposed at the bottom of the housing, the collection tank being made of a transparent material and threadedly connected to the housing.
[0017] Optionally, the cover plate is detachably connected to the housing, and the exhaust pipe is detachably connected to the cover plate.
[0018] Optionally, the number of cylinders is set to multiple, each cylinder corresponding to one indicator valve, and each indicator valve corresponding to an independent housing; The engine fuel collection system also includes a connector, a main collection chamber, and a sludge tank. The bottoms of multiple housings are respectively connected to the connector through a first pipe, and each first pipe is equipped with a first sensor. The connector is connected to the main collection chamber via a second pipeline, and the main collection chamber is equipped with a second sensor. The main collection chamber is connected to the sludge tank via a third pipeline, which is equipped with a control valve.
[0019] According to a second aspect of this application, a gas-liquid separation device is provided, comprising: The housing and the air inlet pipe, wherein the housing has a collection chamber and the air inlet pipe is disposed within the collection chamber; A first impeller and a second impeller are rotatably disposed within the collection chamber. The first impeller is disposed opposite to the outlet end of the air inlet pipe in a first direction. The first impeller guides at least a portion of the medium from the outlet end toward the inner peripheral wall of the housing. The second impeller is annular, and the inner peripheral wall of the housing is arranged around the second impeller. The second impeller is used to guide the medium guided by the first impeller toward the inner bottom wall of the housing. A cover plate is disposed at the opening of the collection chamber and connected to the housing; An exhaust pipe is provided on the cover plate and connects to the collection chamber.
[0020] In the engine fuel collection system of this application embodiment, a first impeller and a second impeller are used to guide the flow of the gas-liquid mixture ejected from the indicator valve. During this process, the gas-liquid mixture rubs and collides with other structures, causing the droplets to gradually increase in size and fall under gravity, thus achieving gas-liquid separation. The gas is discharged through the exhaust pipe, preventing toxic or flammable liquids from entering the engine compartment environment in aerosol form, reducing the risk of explosive mixture formation.
[0021] Other features and advantages of this application will be described in detail in the following detailed description section. Attached Figure Description
[0022] To more clearly illustrate the technical solutions in the embodiments of this application, the accompanying drawings used in the description of the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this application. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.
[0023] To gain a more complete understanding of this application and its beneficial effects, the following description will be provided in conjunction with the accompanying drawings, wherein the same reference numerals in the following description denote the same parts.
[0024] Figure 1 This is a schematic diagram of the gas-liquid separation device provided in the embodiments of this application; Figure 2 This is a schematic diagram of the structure of the first and second impellers provided in an embodiment of this application; Figure 3 This is a schematic diagram of the structure of the aerodynamic component provided in the embodiments of this application; Figure 4 This is a schematic diagram of the structure of the shell provided in an embodiment of this application; Figure 5 This is a schematic diagram of the structure of the second impeller provided in an embodiment of this application; Figure 6 This is a schematic diagram of the structure of an engine fuel collection system provided in an embodiment of this application.
[0025] Explanation of reference numerals in the attached figures: 1. Shell; 10. Collection chamber; 11. Baffle; 12. First circumferential surface; 13. Stepped surface; 14. Second circumferential surface; 15. Threaded interface; 2. Inlet pipe; 21. Inlet end; 22. Outlet end; 3. First impeller; 4. Second impeller; 5. Cover plate; 6. Exhaust pipe; 60. Air hole; 61. Filter layer; 7. Guide plate; 70. Drain hole; 8. Collection tank; 9. Cylinder body; 91. Indicator valve; 100. Connector; 101. First pipeline; 102. Second pipeline; 103. First sensor; 200. Main collection chamber; 201. Second sensor; 300. Sludge tank; 301. Third pipeline; 302. Control valve; X, First direction. Detailed Implementation
[0026] The technical solutions of the embodiments of this application will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only a part of the embodiments of this application, and not all of them. All other embodiments obtained by those skilled in the art based on the embodiments of this application without creative effort are within the protection scope of this application.
[0027] In the description of this application, it should be understood that the terms "height," "thickness," "upper," "lower," "top," "bottom," "inner," and "outer," etc., indicating orientation or positional relationships based on the orientation or positional relationships shown in the accompanying drawings, are used 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, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation on this application. In the description of this application, "a plurality of" means two or more, and "at least one" can mean one, two, or more, unless otherwise expressly specified.
[0028] It should also be noted that in the accompanying drawings of the embodiments of this application, the arrow marked with X represents the first direction X. The first direction X is introduced to more clearly illustrate the structure and relative positional relationship of each component in the engine fuel collection system. In practical applications, the first direction X may change depending on the different ways the engine fuel collection system is placed.
[0029] This application provides an engine fuel collection system; please refer to [link / reference]. Figure 1 and Figure 2 The engine fuel collection system includes a housing 1, an intake pipe 2, a first impeller 3, a second impeller 4, a cover plate 5, and an exhaust pipe 6. The cylinder block 9 is the engine's cylinder body, where fuel combustion occurs. An indicator valve 91 is located on the cylinder block 9 and can be mounted on the cylinder head or the side of the cylinder block 9. It is used to open during blowdown operations to expel residual gas-liquid mixtures from the cylinder. The indicator valve 91 has an intake port 21 and an outlet port 22. The intake port 21 communicates with the interior of the cylinder block 9, and the outlet port 22 is used to connect to external equipment.
[0030] A collection chamber 10 is formed inside the housing 1. An intake pipe 2 is disposed within the collection chamber 10, having an intake end 21 and an outlet end 22. The intake end 21 connects to a power indicator valve 91 on the engine block 9, meaning the intake end 21 of the intake pipe 2 is connected to the outlet end 22 of the power indicator valve 91. A cover plate 5 is disposed at the opening of the collection chamber 10 and connected to the housing 1. An exhaust pipe 6 is disposed on the cover plate 5 and connects to the collection chamber 10. A first impeller 3 and a second impeller 4 are rotatably disposed within the collection chamber 10. The first impeller 3 is rotatably connected to the cover plate 5, and is positioned opposite the outlet end 22 of the intake pipe 2 in a first direction X, meaning the first impeller 3 is located directly above the outlet end 22. The first impeller 3 guides at least a portion of the medium from the outlet end 22 toward the inner peripheral wall of the housing 1. The second impeller 4 is annular, and the inner peripheral wall of the housing 1 is arranged around the second impeller 4. The second impeller 4 is lower than the first impeller 3 in the first direction X. The second impeller 4 is used to guide the medium guided by the first impeller 3 toward the inner bottom wall of the housing 1, while increasing the rotation intensity of the airflow.
[0031] During the blow-off operation, the gas-liquid mixture in the engine cylinder is discharged from the indicator valve 91 and enters the collection chamber 10 through the intake pipe 2. After being ejected from the outlet 22 of the intake pipe 2, the gas-liquid mixture first impacts the first impeller 3. The first impeller 3 rotates under the propulsion of the airflow and collides and rubs with the gas-liquid mixture, capturing some droplets. After passing through the first impeller 3, a portion of the gas-liquid mixture collides with the cover plate 5, achieving gas-liquid separation. Another portion of the gas-liquid mixture generates a rotating airflow under the action of the first impeller 3 and is thrown towards the inner peripheral wall of the housing 1. During this process, some droplets gather and grow larger, falling to the bottom of the collection chamber 10 under the action of gravity.
[0032] The gas-liquid mixture flowing circumferentially is obstructed by the top plate and the inner wall of the shell 1, and flows downward through the second impeller 4, causing the second impeller 4 to rotate. The second impeller 4 further enhances the rotation of the airflow, causing the droplets to gradually separate from the gas during rotation and friction and collision with the inner wall of the shell 1. At least some of the droplets will flow downward along the inner wall of the shell 1 and eventually converge at the bottom of the shell 1. Both the first impeller 3 and the second impeller 4 rotate passively by airflow impact, without the need for external power. Through the initial redirection of the airflow by the first impeller 3 and the enhancement of the rotation intensity by the second impeller 4, the probability of contact and the collision force between the droplets and the inner wall of the shell 1 are increased, and the gas-liquid mixture is separated within the closed collection chamber 10. The separated liquid remains at the bottom of the shell 1, and the gas is discharged through the exhaust pipe 6, thereby reducing the entry of toxic or flammable liquids into the external environment in the form of aerosol.
[0033] Please see Figure 2 and Figure 3 In some embodiments, a flow-deflecting element 11 is provided on the inner peripheral wall of the housing 1. The flow-deflecting element 11 is located below the second impeller 4 along the first direction X, meaning that the orthographic projection of the second impeller 4 along the first direction X can fall on the flow-deflecting element 11. When the gas-liquid mixture flows through the area where the flow-deflecting element 11 is located, the flow-deflecting element 11 interferes with the airflow, increasing the friction and collision between them, thereby causing droplets to adhere to the surface of the flow-deflecting element 11. Under the blowing of the airflow and the action of gravity, the droplets attached to the surface of the flow-deflecting element 11 move along the flow-deflecting element 11 towards the bottom of the housing 1. At the same time, the droplets that converge on the surface of the flow-deflecting element 11 merge with the droplets that collide with it, forming larger droplets. The larger droplets are more likely to overcome the traction of the airflow under the action of gravity and drip from the flow-deflecting element 11 or flow along the inner peripheral wall of the housing 1 to the bottom.
[0034] Please see Figure 2 In some embodiments, the turbulence element 11 extends along a spiral trajectory, that is, the turbulence element 11 is spirally distributed on the inner peripheral wall of the housing 1, starting from below the second impeller 4 and continuously extending along the circumference and axial direction of the housing 1 to the lower region of the housing 1.
[0035] When the airflow passing through the second impeller 4 flows downward near the inner peripheral wall of the housing 1, the turbulence-disrupting element 11, extending along a spiral trajectory, forms a continuous protrusion structure on the inner wall surface of the housing 1. The airflow can flow along the spiral path, and the droplets in the airflow will also continuously move towards the wall surface under the action of centrifugal force. During this process, because the spiral turbulence-disrupting element 11 increases the contact path between the droplets and the wall surface, the number of collisions between the droplets and the turbulence-disrupting element 11 increases. Each collision causes some droplets to adhere to the surface of the turbulence-disrupting element 11, thereby causing the droplets to gradually separate from the airflow. In addition, the liquid adhering to the inner wall surface of the housing 1 or the surface of the turbulence-disrupting element 11 flows downward under the action of gravity. The spiral turbulence-disrupting element 11 provides a continuous flow channel for the liquid, guiding the liquid to converge towards the bottom of the housing 1 along the spiral path. This guiding effect helps to reduce the re-entrainment of liquid by the airflow after local accumulation, improving the stability of gas-liquid separation.
[0036] In some embodiments, the spiral direction of the baffle 11 as it extends along a spiral trajectory can be set according to the direction of airflow rotation. For example, the spiral direction of the baffle 11 is consistent with the direction of airflow rotation guided by the second impeller 4. When the rotating airflow flows downward along the inner peripheral wall of the housing 1, the extension direction of the baffle 11 matches the direction of airflow movement, which can reduce flow resistance.
[0037] Please see Figure 3 In some embodiments, multiple baffles 11 are provided, arranged circumferentially along the inner peripheral wall of the housing 1, that is, the multiple baffles 11 are evenly or spaced apart around the central axis of the housing 1. Each baffle 11 extends along a first direction X, which may be the axial direction corresponding to the housing 1. The baffle 11 starts below the second impeller 4 and extends downward along the inner peripheral wall of the housing 1 to the lower region of the housing 1.
[0038] Multiple axially extending baffles 11 form a circumferentially distributed protrusion structure. As the gas-liquid mixture moves downward, it collides with these protruding baffles 11. On the one hand, some droplets adhere to the surface of the baffles 11. On the other hand, the airflow direction changes locally in the baffles 11, generating disturbance, which helps to make the tiny droplets detach from the airflow and contact the wall surface.
[0039] Please see Figure 2In some embodiments, the engine fuel collection system further includes a guide vane 7, which is disposed around the outlet end 22 of the intake pipe 2. The side of the guide vane 7 away from the intake pipe 2 is positioned above the first impeller 3 along a first direction X, and is spaced apart from the inner peripheral wall of the housing 1. The guide vane 7 is provided with a vent hole 70 extending through along the first direction X. Specifically, the guide vane 7 includes a receiving portion and a connecting portion. The connecting portion has a hollow structure and is fitted onto the outlet end 22 of the intake pipe 2. The receiving portion is disposed around the outer periphery of the connecting portion and is integrally formed with the connecting portion. The entire receiving portion extends outwards in a direction away from the connecting portion, so that the outer edge of the receiving portion falls above the second impeller 4. The vent hole 70 is located on the side of the receiving portion near the connecting portion.
[0040] The space enclosed by the guide plate 7, the cover plate 5, and the inner peripheral wall of the housing 1 restricts the airflow path, allowing the airflow to flow entirely circumferentially after passing the first impeller 3, and then flow downstream through the annular gap formed by the outer peripheral surface of the guide plate 7 and the inner peripheral wall of the housing 1. This extends the airflow path and increases the sufficiency of droplet contact with the wall surface. Droplets falling from the first impeller 3 or the cover plate 5 fall into the guide plate 7, are caught by the guide plate 7, and then fall to the bottom of the housing 1 through the vent hole 70, reducing the possibility of droplets falling directly back into the air inlet pipe 2 area or being re-carried in by the airflow.
[0041] Please see Figure 2 In some embodiments, in the first direction X, the side of the guide plate 7 near the intake pipe 2 is lower than the side of the guide plate 7 near the second impeller 4. The receiving portion facing the first impeller 3 is a smooth curved surface, and this surface is generally inclined, with the vent hole 70 located on the downward inclined side. When a droplet falls on the guide plate 7, the droplet slides down the surface of the guide plate 7, accumulates, and is finally discharged through the vent hole 70. This accelerates the liquid accumulation and discharge speed and reduces the possibility of droplets remaining on the surface of the guide plate 7 and being easily affected by airflow.
[0042] Please see Figure 2 , Figure 4 and Figure 5 In some embodiments, the inner peripheral wall of the housing 1 is provided with a first peripheral surface 12, a stepped surface 13, and a second peripheral surface 14. The inner diameter of the first peripheral surface 12 is larger than the inner diameter of the second peripheral surface 14. The stepped surface 13 extends radially and connects the first peripheral surface 12 and the second peripheral surface 14 respectively. The second impeller 4 is disposed between the guide plate 7 and the stepped surface 13, and is correspondingly disposed to the first peripheral surface 12. The blades of the second impeller 4 have an orthographic projection along the first direction X, and part of the orthographic projection falls on the stepped surface 13, and part can fall on the baffle 11, so that the airflow flowing through the second impeller 4 can expand with the baffle 11.
[0043] The stepped surface 13 supports the second impeller 4. The stepped surface 13 and the guide plate 7 together restrict the axial displacement of the second impeller 4. The first circumferential surface 12 restricts the radial displacement of the second impeller 4. The guide plate 7 and the first circumferential surface 12 have certain gaps with the second impeller 4. In this way, when the airflow passes through the second impeller 4, it can cause the second impeller 4 to rotate, thereby enhancing the rotation of the airflow.
[0044] Please see Figure 2 In some embodiments, the exhaust pipe 6 passes through the guide plate 7 along a first direction X. Specifically, the guide plate 7 has holes through which the exhaust pipe 6 passes. The upper end of the exhaust pipe 6 is located above the cover plate 5, and the lower end of the exhaust pipe 6 is located below the guide plate 7. This allows the gas, after being separated by the first impeller 3 and the second impeller 4, to flow downwards to the area below the guide plate 7, and then enter from the inlet of the exhaust pipe 6 and exit upwards into the collection chamber 10, which helps to increase the adequacy of gas-liquid separation. In addition, since the exhaust pipe 6 passes directly through the guide plate 7, compared to placing the exhaust pipe 6 between the guide plate 7 and the inner peripheral wall of the housing 1 to avoid the guide plate 7, the radial dimension requirement of the housing 1 is reduced, which helps to save space occupied by the device.
[0045] Please see Figure 2 In some embodiments, the outer peripheral wall of the exhaust pipe 6 is provided with a plurality of air holes 60, which are distributed along the circumference and axial direction of the exhaust pipe 6 and are located below the guide plate 7. The exhaust pipe 6 is covered with a filter layer 61, which covers the plurality of air holes 60.
[0046] In this embodiment, the filter layer 61 is made of activated carbon fiber felt. The activated carbon fiber felt has a porous structure and a large specific surface area. When gas flows through the filter layer 61, tiny droplets carried in the gas flow collide and contact with the fibers, adhering to the fiber surface and being captured. The activated carbon fiber felt also has a certain adsorption effect on trace amounts of harmful components that may be present in the gas. Furthermore, the pores 60 are distributed circumferentially and axially along the pipe wall, providing multiple entry channels for the gas and facilitating faster gas discharge.
[0047] Please see Figure 2In some embodiments, the engine fuel collection system further includes a threaded interface 15 located at the bottom of the housing 1. The intake end 21 of the exhaust pipe 6 is connected to the bottom of the housing 1 and communicates with the threaded interface 15. The threaded interface 15 is used to connect to the indicator valve 91, so that the exhaust pipe 6 communicates with the indicator valve 91 through the threaded interface 15. Specifically, the exhaust pipe 6 is integrally formed with the housing 1, and the intake end 21 of the exhaust pipe 6 is integrally formed with the bottom of the housing 1 to form an intake port, which is located on the bottom surface of the housing 1. The threaded interface 15 is arranged around the outer periphery of the intake port. The top end of the indicator valve 91 is threaded into the threaded interface 15, realizing a detachable connection between the indicator valve 91 and the device, which facilitates selective installation of the device according to actual operating conditions. In addition, the gas-liquid mixture enters from the bottom, the gas exits from the top, and the liquid is collected at the bottom, forming a bottom-in, top-out flow path. This arrangement utilizes gravity to assist the liquid to converge downwards, while making the flow path of the gas and liquid phases within the housing 1 longer, thus increasing the separation effect.
[0048] Please see Figure 2 In some embodiments, the engine fuel collection system further includes a collection tank 8 disposed at the bottom of the housing 1, which is used to receive the separated liquid. The collection tank 8 is made of a transparent material, such as glass or transparent plastic, so that the operator can directly observe the liquid level inside the collection tank 8. When the liquid level is observed to reach a certain height, the liquid can be drained in time to avoid excessive liquid affecting the subsequent separation effect.
[0049] The collection tank 8 is connected to the shell 1 by a threaded connection. For example, the upper end of the collection tank 8 is provided with an external or internal thread, and the bottom of the shell 1 is provided with a corresponding threaded structure. The collection tank 8 can be installed or removed by rotation. In addition, the threaded connection has a certain degree of sealing, which can prevent the liquid inside the collection tank 8 from evaporating or leaking.
[0050] Please see Figure 2 In some embodiments, the cover plate 5 and the housing 1 are fixed by a detachable connection.
[0051] For example, the cover plate 5 has an internal thread on its edge and the housing 1 has an external thread at its open end. The cover plate 5 is then screwed onto the housing 1.
[0052] For example, the outer wall of the opening end of the housing 1 and the edge of the cover plate 5 are respectively provided with radially protruding flange edges. After the two flange edges are closed together, a split clamp is fitted on the outer side. The inner side of the clamp is provided with a groove that matches the flange edge. The two flange edges are pressed together by tightening the bolts on the clamp.
[0053] For example, the housing 1 has a flange at its open end, the cover plate 5 has a corresponding flange, a sealing gasket is provided between the two flanges, and the two flanges are fastened together by multiple bolts and nuts.
[0054] Please see Figure 2 In some embodiments, the exhaust pipe 6 is detachably connected to the cover plate 5.
[0055] For example, the exhaust pipe 6 passes through the through hole on the cover plate 5, and locking nuts are respectively provided on the upper and lower sides of the cover plate 5. The outer wall of the exhaust pipe 6 is threaded, and the exhaust pipe 6 is clamped and fixed on the cover plate 5 by the upper and lower nuts.
[0056] For example, the cover plate 5 is provided with a pipe connector, and the pipe connector is provided with a ferrule and a clamping nut. After the exhaust pipe 6 is inserted into the pipe connector, the clamping nut is tightened, and the ferrule clamps the exhaust pipe 6 to achieve fixation and sealing.
[0057] For example, a quick-connect fitting is fixedly installed on the cover plate 5, and the fitting has elastic claws and a sealing ring inside. When the exhaust pipe 6 is inserted into the quick-connect fitting, the elastic claws automatically lock the exhaust pipe 6.
[0058] Please see Figure 6 In some embodiments, the number of cylinders 9 is set to multiple, each cylinder 9 corresponds to a power indicator valve 91, each power indicator valve 91 corresponds to an independent housing 1, and each housing 1 is equipped with an intake pipe 2, a first impeller 3, a second impeller 4, a cover plate 5 and an exhaust pipe 6, for independently processing the gas-liquid mixture discharged during the blower operation of the corresponding cylinder 9.
[0059] The engine fuel collection system also includes a connector 100, a main collection chamber 200, and a sludge tank 300. The connector 100 is a pipe fitting structure used to connect multiple pipes. The main collection chamber 200 is a container structure used to temporarily store liquids. The sludge tank 300 is used to store liquids discharged from the main collection chamber 200.
[0060] The bottoms of multiple housings 1 are respectively connected to the connector 100 through first pipes 101. Each first pipe 101 is provided with at least one first sensor 103. The first sensor 103 can be used to detect the flow or liquid level of the liquid in the corresponding first pipe 101, or it can be used to detect combustible gas.
[0061] The connector 100 is connected to the main collection chamber 200 via the second pipe 102. The connector 100 connects multiple first pipes 101 to the second pipe 102, allowing liquid from multiple housings 1 to be transported to the main collection chamber 200 via the second pipe 102. A second sensor 201 is installed on the second pipe 102, which is used to detect the flow or level of liquid within the second pipe 102.
[0062] The main collection chamber 200 is connected to the sludge tank 300 through the third pipeline 301. A control valve 302 is installed on the third pipeline 301 to control the opening and closing of the third pipeline 301.
[0063] When multiple cylinders 9 are blown into the engine, the gas-liquid mixture in each cylinder 9 enters the corresponding housing 1 through the corresponding indicator valve 91. Each housing 1 separates the gas-liquid mixture; the separated gas is discharged from its exhaust pipe 6, and the liquid is collected at the bottom of its respective housing 1. The liquid at the bottom of the housing 1 can be directly transported to the connector 100 through the corresponding first pipe 101, or when the liquid in the housing 1 reaches a certain amount, the liquid can be transported to the connector 100 through the corresponding first pipe 101. Since the connector 100 connects multiple first pipes 101 to second pipes 102, the liquid from multiple housings 1 flows into the second pipe 102 through the connector 100, and then enters the main collection chamber 200 through the second pipe 102. The liquid is temporarily stored in the main collection chamber 200. When the liquid in the main collection chamber 200 accumulates to the point where it needs to be discharged, the control valve 302 on the third pipeline 301 is opened, and the liquid is discharged into the sludge tank 300 through the third pipeline 301 for centralized storage. For multi-cylinder engines, this system can collect and centrally dispose of toxic or flammable liquids discharged from each cylinder, avoiding mutual interference between the emissions from multiple cylinders 9, and also facilitating the monitoring and control of the collection process.
[0064] Please see Figure 1 and Figure 2 According to a second aspect of this disclosure, a gas-liquid separation device is provided, comprising a housing 1, an inlet pipe 2, a first impeller 3, a second impeller 4, a cover plate 5, and an exhaust pipe 6. A collection chamber 10 is formed inside the housing 1. The inlet pipe 2 is disposed within the collection chamber 10, and has an inlet end 21 and an outlet end 22. The inlet end 21 is used to connect to a dynamometer valve 91 on an engine block 9. The cover plate 5 is disposed at the opening of the collection chamber 10 and connected to the housing 1. The exhaust pipe 6 is disposed on the cover plate 5 and connects to the collection chamber 10. Both the first impeller 3 and the second impeller 4 are rotatably disposed within the collection chamber 10. The first impeller 3 is rotatably connected to the cover plate 5, and the first impeller 3 is positioned opposite the outlet end 22 of the inlet pipe 2 in a first direction X, i.e., the first impeller 3 is located directly above the outlet end 22. The first impeller 3 is used to guide at least a portion of the medium from the outlet end 22 toward the inner peripheral wall of the housing 1. The second impeller 4 is annular, and the inner peripheral wall of the housing 1 is arranged around the second impeller 4. The second impeller 4 is lower than the first impeller 3 in the first direction X. The second impeller 4 is used to guide the medium guided by the first impeller 3 toward the inner bottom wall of the housing 1, while increasing the rotation intensity of the airflow.
[0065] According to a third aspect of this disclosure, a control method is provided, comprising: Receive the signal detected by the first sensor; Based on the signal detected by the first sensor, an alarm message is issued, which includes the location information of the gas-liquid separation device corresponding to the liquid or gas. Receive the liquid level signal detected by the second sensor; When the liquid level detected by the second sensor exceeds the preset limit, the control valve opens, and the liquid in the main collection chamber is discharged to the sludge tank through the third pipeline.
[0066] In the description of this application, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of technical features indicated. Thus, features defined with "first" and "second" may explicitly or implicitly include one or more features.
[0067] The embodiments, implementation methods, and related technical features of this application can be combined and substituted for each other without conflict.
[0068] The above are merely preferred embodiments of this application and are not intended to limit this application in any way. Any simple modifications, equivalent changes, and alterations made to the above embodiments based on the technical essence of this application without departing from the scope of the technical solution of this application shall still fall within the scope of the technical solution of this application.
Claims
1. An engine fuel collection system, characterized in that, include: Cylinder block (9); A power indicator valve (91) is disposed in the cylinder body (9); The housing (1) and the air inlet pipe (2) are provided. The housing (1) has a collection chamber (10). The air inlet pipe (2) is disposed in the collection chamber (10). The air inlet end (21) of the air inlet pipe (2) is connected to the indicator valve (91). The first impeller (3) and the second impeller (4) are rotatably disposed in the collection chamber (10). The first impeller (3) and the outlet end (22) of the air inlet pipe (2) are disposed opposite to each other in the first direction (X). The first impeller (3) is used to guide at least part of the medium from the outlet end (22) toward the inner peripheral wall of the housing (1). The second impeller (4) is annular, and the inner peripheral wall of the housing (1) is arranged around the second impeller (4). The second impeller (4) is used to guide the medium guided by the first impeller (3) toward the inner bottom wall of the housing (1). A cover plate (5) is provided at the opening of the collection chamber (10) and connected to the housing (1); An exhaust pipe (6) is provided on the cover plate (5) and connected to the collection chamber (10).
2. The engine fuel collection system according to claim 1, characterized in that, The inner peripheral wall of the housing (1) is provided with a flow-dispersing element (11), which is located below the second impeller (4) along the first direction (X).
3. The engine fuel collection system according to claim 2, characterized in that, The spoiler (11) extends along a spiral trajectory.
4. The engine fuel collection system according to claim 2, characterized in that, The number of the baffles (11) is provided in multiples, and the multiple baffles (11) are arranged circumferentially along the inner peripheral wall of the housing (1), and the baffles (11) extend along the first direction (X).
5. The engine fuel collection system according to claim 1, characterized in that, The engine fuel collection system also includes a guide plate (7), which is arranged around the outlet end (22) of the intake pipe (2). The side of the guide plate (7) away from the intake pipe (2) is arranged above the first impeller (3) along the first direction (X) and spaced apart from the inner peripheral wall of the housing (1). The guide plate (7) is provided with a vent hole (70).
6. The engine fuel collection system according to claim 5, characterized in that, In the first direction (X), the side of the guide plate (7) near the air intake pipe (2) is lower than the side of the guide plate (7) near the second impeller (4).
7. The engine fuel collection system according to claim 5, characterized in that, The inner peripheral wall of the shell (1) is provided with a first peripheral surface (12), a stepped surface (13) and a second peripheral surface (14). The inner diameter of the first peripheral surface (12) is larger than the inner diameter of the second peripheral surface (14). The stepped surface (13) connects the first peripheral surface (12) and the second peripheral surface (14) respectively. The second impeller (4) is disposed between the guide plate (7) and the stepped surface (13), and is disposed corresponding to the first circumferential surface (12).
8. The engine fuel collection system according to claim 5, characterized in that, The exhaust pipe (6) passes through the guide plate (7).
9. The engine fuel collection system according to claim 8, characterized in that, The exhaust pipe (6) has multiple air holes (60) on the outer peripheral wall of the portion below the guide plate (7).
10. The engine fuel collection system according to claim 9, characterized in that, The exhaust pipe (6) is provided with a filter layer (61) which covers a plurality of the air holes (60).
11. The engine fuel collection system according to claim 1, characterized in that, The engine fuel collection system also includes a threaded interface (15) disposed at the bottom of the housing (1). The intake end (21) of the exhaust pipe (6) is connected to the bottom of the housing (1) and communicates with the threaded interface (15). The threaded interface (15) is connected to the indicator valve (91) so that the exhaust pipe (6) communicates with the indicator valve (91) through the threaded interface (15).
12. The engine fuel collection system according to claim 1, characterized in that, The engine fuel collection system also includes a collection tank (8) disposed at the bottom of the housing (1), the collection tank (8) being made of transparent material and threadedly connected to the housing (1).
13. The engine fuel collection system according to claim 1, characterized in that, The cover plate (5) is detachably connected to the housing (1), and the exhaust pipe (6) is detachably connected to the cover plate (5).
14. The engine fuel collection system according to any one of claims 1 to 13, characterized in that, The number of cylinders (9) is set to multiple, each cylinder (9) corresponds to one indicator valve (91), and each indicator valve (91) corresponds to an independent housing (1); The engine fuel collection system also includes a connector (100), a main collection chamber (200), and a sludge tank (300). The bottoms of the multiple housings (1) are respectively connected to the connector (100) through first pipes (101), and each first pipe (101) is provided with a first sensor (103). The connector (100) is connected to the main collection chamber (200) via a second pipe (102), and the main collection chamber (200) is equipped with a second sensor (201); The main collection chamber (200) is connected to the sludge tank (300) via a third pipeline (301), and the third pipeline (301) is equipped with a control valve (302).
15. A gas-liquid separation device, characterized in that, include: The housing (1) and the air inlet pipe (2) are provided, wherein the housing (1) has a collection chamber (10) and the air inlet pipe (2) is disposed in the collection chamber (10); The first impeller (3) and the second impeller (4) are rotatably disposed in the collection chamber (10). The first impeller (3) and the outlet end (22) of the air inlet pipe (2) are disposed opposite to each other in the first direction (X). The first impeller (3) is used to guide at least part of the medium from the outlet end (22) toward the inner peripheral wall of the housing (1). The second impeller (4) is annular, and the inner peripheral wall of the housing (1) is arranged around the second impeller (4). The second impeller (4) is used to guide the medium guided by the first impeller (3) toward the inner bottom wall of the housing (1). A cover plate (5) is provided at the opening of the collection chamber (10) and connected to the housing (1); An exhaust pipe (6) is provided on the cover plate (5) and connected to the collection chamber (10).