Diesel engine filtering system

Abstract

The utility model discloses a diesel engine filtering system which comprises an engine oil filtering system, a diesel oil filtering system, an air filtering system and a controller, the engine oil filtering system and the diesel oil filtering system respectively comprise a main filter element, a standby filter element, an oil distributor, an oil inlet three-way pipe, an oil inlet three-way valve, an oil outlet three-way pipe and an oil outlet three-way valve, and the oil distributor comprises an oil inlet cavity and an oil outlet cavity. The oil inlet three-way pipe is respectively connected with the oil inlet cavity and the main / standby filter element, the oil inlet three-way valve controls the oil inlet cavity to be communicated with the main / standby filter element, the oil outlet three-way pipe is respectively connected with the oil outlet cavity and the main / standby filter element, the oil outlet three-way valve controls the oil outlet cavity to be communicated with the main / standby filter element, and the controller controls the oil inlet and outlet three-way valve to be simultaneously conducted towards the main / standby direction; the air filtering system comprises a main air filter element, a standby air filter element, an air inlet three-way pipe and an air inlet three-way valve, the air inlet three-way pipe is connected with an air inlet of the engine and the main air filter element and the standby air filter element, the air inlet three-way valve controls the air inlet of the engine to be communicated with the main air filter element or the standby air filter element, and the controller controls the communication direction.

Description

Technical Field

[0001] The utility model relates to the technical field of engine maintenance. More specifically, the utility model relates to a diesel engine filtration system. Background Art

[0002] In order to ensure the efficient operation of a diesel engine, the diesel engine is equipped with an oil filter to filter the engine oil, a diesel filter to filter the diesel, and an air filter to filter the air. However, the oil filter, the diesel filter, and the air filter are all single sets of filters. After the filters are used for a period of time, they need to be replaced to ensure the quality of the engine oil, diesel, and air. The process of replacement is called engine maintenance. Since they are single sets of filters, the maintenance cycle is short, and the filters need to be replaced frequently. Moreover, in special environments such as unmanned power stations, the engine cannot be maintained in a short time, which may cause engine operation failures. Content of the Utility Model

[0003] Aiming at the deficiencies of the prior art, the utility model innovatively provides a diesel engine filtration system, which is provided with two sets of main and standby filters and can automatically switch, prolonging the filter replacement time, reducing the filter replacement frequency, and doubling the engine maintenance cycle; it is more suitable for special environments such as unmanned power stations, and reduces the frequency of operators in unmanned power stations going to harsh sites.

[0004] To achieve the above technical purpose, the utility model discloses a diesel engine filtration system, which includes an engine oil filtration system, a diesel filtration system, an air filtration system, and a controller.

[0005] The engine oil filtration system includes a main engine oil filter element, a standby engine oil filter element, an engine oil distributor, a first oil inlet three-way pipe, a first oil inlet three-way valve, a first oil outlet three-way pipe, and a first oil outlet three-way valve. The engine oil distributor is connected to the base of the original engine oil filter element. The engine oil distributor includes an independent first oil inlet chamber and a first oil outlet chamber. The first oil inlet three-way pipe is respectively connected to the first oil inlet chamber of the engine oil distributor, the oil outlet of the main engine oil filter element, and the oil outlet of the standby engine oil filter element. The first oil inlet three-way valve is provided at the three-way of the first oil inlet three-way pipe. The first oil inlet three-way valve controls the connection between the first oil inlet chamber of the engine oil distributor and the oil outlet of the main engine oil filter element or the connection between the first oil inlet chamber of the engine oil distributor and the oil outlet of the standby engine oil filter element. The first oil outlet three-way pipe is respectively connected to the first oil outlet chamber of the engine oil distributor, the oil inlet of the main engine oil filter element, and the oil inlet of the standby engine oil filter element. The first oil outlet three-way valve is provided at the three-way of the first oil outlet three-way pipe. The first oil outlet three-way valve controls the connection between the first oil outlet chamber of the engine oil distributor and the oil inlet of the main engine oil filter element or the connection between the first oil outlet chamber of the engine oil distributor and the oil inlet of the standby engine oil filter element. Both the first oil inlet three-way valve and the first oil outlet three-way valve are electrically connected to the controller. The controller controls the first oil inlet three-way valve and the first oil outlet three-way valve to conduct simultaneously in the direction of the main engine oil filter element or simultaneously in the direction of the standby engine oil filter element;

[0006] The diesel filtration system includes a main diesel filter element, a standby diesel filter element, a diesel distributor, a second oil inlet three-way pipe, a second oil inlet three-way valve, a second oil outlet three-way pipe, and a second oil outlet three-way valve. The diesel distributor is connected to the base of the original diesel filter element. The diesel distributor includes an independent second oil inlet chamber and a second oil outlet chamber. The second oil inlet three-way pipe is respectively connected to the second oil inlet chamber of the diesel distributor, the oil outlet of the main diesel filter element, and the oil outlet of the standby diesel filter element. The second oil inlet three-way valve is provided at the three-way of the second oil inlet three-way pipe. The second oil inlet three-way valve controls the connection between the second oil inlet chamber of the diesel distributor and the oil outlet of the main diesel filter element or the connection between the second oil inlet chamber of the diesel distributor and the oil outlet of the standby diesel filter element. The second oil outlet three-way pipe is respectively connected to the second oil outlet chamber of the diesel distributor, the oil inlet of the main diesel filter element, and the oil inlet of the standby diesel filter element. The second oil outlet three-way valve is provided at the three-way of the second oil outlet three-way pipe. The second oil outlet three-way valve controls the connection between the second oil outlet chamber of the diesel distributor and the oil inlet of the main diesel filter element or the connection between the second oil outlet chamber of the diesel distributor and the oil inlet of the standby diesel filter element. Both the second oil inlet three-way valve and the second oil outlet three-way valve are electrically connected to the controller. The controller controls the second oil inlet three-way valve and the second oil outlet three-way valve to conduct simultaneously in the direction of the main diesel filter element or simultaneously in the direction of the standby diesel filter element;

[0007] The air filtration system includes a main air filter element, a standby air filter element, an intake three-way pipe, and an intake three-way valve. The intake three-way pipe is respectively connected to the intake port of the engine, the air outlet of the main air filter element, and the air outlet of the standby air filter element. The intake three-way valve is provided at the three-way of the intake three-way pipe. The intake three-way valve controls the communication between the intake port of the engine and the intake port of the main air filter element or the communication between the intake port of the engine and the air outlet of the standby air filter element. The intake three-way valve is electrically connected to the controller, and the controller is used to control the conduction direction of the intake three-way valve.

[0008] Further, an air resistance indicator is provided on the pipeline of the intake three-way pipe connected to the engine intake port. The air resistance indicator is electrically connected to the controller, and the controller controls the conduction direction of the intake three-way valve according to the air resistance measured by the air resistance indicator.

[0009] Further, an oil-water separation and filtration system is also included. The oil-water separation and filtration system includes a main oil-water separation filter element, a standby oil-water separation filter element, a liquid separator, a third oil inlet three-way pipe, a third oil inlet three-way valve, a liquid outlet three-way pipe, and a liquid outlet three-way valve. The liquid separator is connected to the base of the original oil-water separation filter element. The liquid separator includes an independent third oil inlet chamber and a liquid outlet chamber. The third oil inlet three-way pipe is respectively connected to the third oil inlet chamber of the liquid separator, the oil outlet of the main oil-water separation filter element, and the oil outlet of the standby oil-water separation filter element. The third oil inlet three-way valve is provided at the three-way of the third oil inlet three-way pipe. The third oil inlet three-way valve controls the communication between the third oil inlet chamber of the liquid separator and the oil outlet of the main oil-water separation filter element or the communication between the third oil inlet chamber of the liquid separator and the oil outlet of the standby oil-water separation filter element. The liquid outlet three-way pipe is respectively connected to the liquid outlet chamber of the liquid separator, the liquid inlet of the main oil-water separation filter element, and the liquid inlet of the standby oil-water separation filter element. The liquid outlet three-way valve is provided at the three-way of the liquid outlet three-way pipe. The liquid outlet three-way valve controls the communication between the liquid outlet chamber of the liquid separator and the liquid inlet of the main oil-water separation filter element or the communication between the liquid outlet chamber of the liquid separator and the liquid inlet of the standby oil-water separation filter element. Both the third oil inlet three-way valve and the liquid outlet three-way valve are electrically connected to the controller, and the controller controls the third oil inlet three-way valve and the liquid outlet three-way valve to conduct simultaneously in the direction of the main oil-water separation filter element or simultaneously in the direction of the standby oil-water separation filter element.

[0010] Further, the first oil inlet three-way valve is an L-shaped electric three-way ball valve or a three-way solenoid valve, and / or the first oil outlet three-way valve is an L-shaped electric three-way ball valve or a three-way solenoid valve.

[0011] Further, the second oil inlet three-way valve is an L-shaped electric three-way ball valve or a three-way solenoid valve, and / or, the second oil outlet three-way valve is an L-shaped electric three-way ball valve or a three-way solenoid valve.

[0012] Further, the air inlet three-way valve is an L-shaped electric three-way ball valve or a three-way solenoid valve.

[0013] Further, the first oil inlet three-way pipe is threadedly connected to the oil inlet of the first oil inlet chamber of the oil separator, the oil outlet of the main engine oil filter element, and the oil outlet of the standby engine oil filter element and is sealed by a sealing ring, and / or, the first oil outlet three-way pipe is threadedly connected to the oil outlet of the first oil outlet chamber of the oil separator, the oil inlet of the main engine oil filter element, and the oil inlet of the standby engine oil filter element and is sealed by a sealing ring.

[0014] Further, the second oil inlet three-way pipe is threadedly connected to the oil inlet of the second oil inlet chamber of the diesel oil separator, the oil outlet of the main diesel filter element, and the oil outlet of the standby diesel filter element and is sealed by a sealing ring, and / or, the second oil outlet three-way pipe is threadedly connected to the oil outlet of the second oil outlet chamber of the diesel oil separator, the oil inlet of the main diesel filter element, and the oil inlet of the standby diesel filter element and is sealed by a sealing ring.

[0015] Further, the air inlet three-way pipe is threadedly connected to the air inlet of the engine, the air outlet of the main air filter element, and the air outlet of the standby air filter element and is sealed by a sealing ring.

[0016] Further, the controller is communicatively connected to the upper computer through a communication device.

[0017] The beneficial effects of the present utility model are as follows:

[0018] The diesel engine filtration system of the present utility model is provided with a main and a standby set of filter elements and can perform automatic switching, extending the filter element replacement time, reducing the filter element replacement frequency, doubling the engine maintenance period; it is more suitable for special environments such as unmanned power stations, reducing the frequency of unmanned power station operators going to harsh sites. Description of the Drawings

[0019] Figure 1 is a schematic structural diagram of the diesel engine filtration system according to an embodiment of the present utility model.

[0020] Figure 2 is a schematic structural diagram of the oil-water separation and filtration system according to an embodiment of the present utility model.

[0021] Figure 3 is a schematic circuit diagram of the controller controlling each three-way valve according to an embodiment of the present utility model.

[0022] In the figure,

[0023] 1. Engine oil filtration system; 11. Main engine oil filter element; 12. Spare engine oil filter element; 13. Engine oil distributor; 131. First oil inlet chamber; 132. First oil outlet chamber; 14. First oil inlet three-way pipe; 15. First oil inlet three-way valve; 16. First oil outlet three-way pipe; 17. First oil outlet three-way valve; 2. Diesel filtration system; 21. Main diesel filter element; 22. Spare diesel filter element; 23. Diesel distributor; 231. Second oil inlet chamber; 232. Second oil outlet chamber; 24. Second oil inlet three-way pipe; 25. Second oil inlet three-way valve; 26. Second oil outlet three-way pipe; 27. Second oil outlet three-way valve; 3. Air filtration system; 31. Main air filter element; 32. Spare air filter element; 33. Intake air three-way pipe; 34. Intake air three-way valve; 35. Air resistance indicator; 4. Controller; 5. Oil-water separation and filtration system; 51. Main oil-water separation filter element; 52. Spare oil-water separation filter element; 53. Liquid separator; 531. Third oil inlet chamber; 532. Liquid outlet chamber; 54. Third oil inlet three-way pipe; 55. Third oil inlet three-way valve; 56. Liquid outlet three-way pipe; 57. Liquid outlet three-way valve; 6. Original engine oil filter element base; 7. Original diesel filter element base; 8. Original oil-water separation filter element base. Detailed implementation mode

[0024] The diesel engine filtration system provided by the present utility model will be explained and described in detail below with reference to the accompanying drawings of the specification.

[0025] This embodiment specifically discloses a diesel engine filtration system, as Figure 1 shown, including an engine oil filtration system 1, a diesel filtration system 2, an air filtration system 3 and a controller 4. The engine oil filtration system 1 is used to filter engine oil, the diesel filtration system 2 is used to filter diesel, the air filtration system 3 is used to filter air, and the controller 4 is used to control the working states of the engine oil filtration system 1, the diesel filtration system 2 and the air filtration system 3.

[0026] The engine oil filtration system 1 includes a main engine oil filter element 11, a standby engine oil filter element 12, an engine oil distributor 13, a first oil inlet three-way pipe 14, a first oil inlet three-way valve 15, a first oil outlet three-way pipe 16 and a first oil outlet three-way valve 17. The engine oil distributor 13 is connected to the original engine oil filter base 6. Without changing the structure of the diesel engine, the engine oil filtration system 1 of the present application can be directly installed at the position where the original engine oil filter is installed. The engine oil distributor 13 includes an independent first oil inlet chamber 131 and a first oil outlet chamber 132. Oil pipe connectors can be provided at the oil inlet of the first oil inlet chamber 131 and the oil outlet of the first oil outlet chamber 132 for connection with pipelines. The first oil inlet three-way pipe 14 is respectively connected to the first oil inlet chamber 131 of the engine oil distributor 13, the oil outlet of the main engine oil filter element 11 and the oil outlet of the standby engine oil filter element 12. A first oil inlet three-way valve 15 is provided at the three-way of the first oil inlet three-way pipe 14. The first oil inlet three-way valve 15 controls the connection between the first oil inlet chamber 131 of the engine oil distributor 13 and the oil outlet of the main engine oil filter element 11 or the connection between the first oil inlet chamber 131 of the engine oil distributor 13 and the oil outlet of the standby engine oil filter element 12. That is, the first oil inlet three-way valve 15 controls the oil inlet branch pipe connected to the first oil inlet chamber 131 of the first oil inlet three-way pipe 14 to always maintain a passage, and then controls one of the main branch pipe connected to the main engine oil filter element 11 and the standby branch pipe connected to the standby engine oil filter element 12 to communicate with the oil inlet branch pipe to perform main-standby switching. The first oil outlet three-way pipe 16 is respectively connected to the first oil outlet chamber 132 of the engine oil distributor 13, the oil inlet of the main engine oil filter element 11 and the oil inlet of the standby engine oil filter element 12. A first oil outlet three-way valve 17 is provided at the three-way of the first oil outlet three-way pipe 16. The first oil outlet three-way valve 17 controls the connection between the first oil outlet chamber 132 of the engine oil distributor 13 and the oil inlet of the main engine oil filter element 11 or the connection between the first oil outlet chamber 132 of the engine oil distributor 13 and the oil inlet of the standby engine oil filter element 12. That is, the first oil outlet three-way valve 17 controls the oil outlet branch pipe connected to the first oil outlet chamber 132 of the first oil outlet three-way pipe 16 to always maintain a passage, and then controls one of the main branch pipe connected to the main engine oil filter element 11 and the standby branch pipe connected to the standby engine oil filter element 12 to communicate with the oil outlet branch pipe to perform main-standby switching. The first oil inlet three-way valve 15 and the first oil outlet three-way valve 17 are both electrically connected to the controller 4. The controller 4 controls the first oil inlet three-way valve 15 and the first oil outlet three-way valve 17 to conduct simultaneously in the direction of the main engine oil filter element 11 or simultaneously in the direction of the standby engine oil filter element 12 to achieve main-standby switching. Figure 1The solid arrow indicates the main direction, and the dashed arrow indicates the standby direction. Oil flow of the main filter element: First, the oil flows from the first oil outlet cavity 132 of the oil separator 13 into the first oil outlet tee 16. The first oil outlet three-way valve 17 is opened to the direction of the main oil filter element 11, and the oil flows into the oil inlet of the main oil filter element 11. After being filtered by the main oil filter element 11, it flows out from the oil outlet of the main oil filter element 11 and reaches the first oil inlet tee 14. The first oil inlet three-way valve 15 is also opened to the direction of the main oil filter element, and then it flows into the first oil inlet cavity 131 of the oil separator 13. Oil flow of the standby filter element: First, the oil flows from the first oil outlet cavity 132 of the oil separator 13 into the first oil outlet tee 16. The first oil outlet three-way valve 17 is opened to the direction of the standby oil filter element 12, and the oil flows into the oil inlet of the standby oil filter element 12. After being filtered by the standby oil filter element 12, it flows out from the oil outlet of the standby oil filter element 12 and reaches the first oil inlet tee 14. The first oil inlet three-way valve 15 is also opened to the direction of the standby oil filter element 12, and then it flows into the first oil inlet cavity 131 of the oil separator 13.

[0027] The diesel filtration system 2 includes a main diesel filter element 21, a standby diesel filter element 22, a diesel oil separator 23, a second oil inlet three-way pipe 24, a second oil inlet three-way valve 25, a second oil outlet three-way pipe 26, and a second oil outlet three-way valve 27. The diesel oil separator 23 is connected to the original diesel filter element base 7. Without changing the structure of the diesel engine, the diesel filtration system 2 of the present application can be directly installed at the position where the original diesel filter element is installed. The diesel oil separator 23 includes an independent second oil inlet chamber 231 and a second oil outlet chamber 232. Oil pipe joints can be provided at the oil inlet of the second oil inlet chamber 231 and the oil outlet of the second oil outlet chamber 232 for connection to pipelines. The second oil inlet three-way pipe 24 is respectively connected to the second oil inlet chamber 231 of the diesel oil separator 23, the oil outlet of the main diesel filter element 21, and the oil outlet of the standby diesel filter element 22. A second oil inlet three-way valve 25 is provided at the three-way of the second oil inlet three-way pipe 24. The second oil inlet three-way valve 25 controls the connection between the second oil inlet chamber 231 of the diesel oil separator 23 and the oil outlet of the main diesel filter element 21 or the connection between the second oil inlet chamber 231 of the diesel oil separator 23 and the oil outlet of the standby diesel filter element 22. That is, the second oil inlet three-way valve 25 controls the oil inlet branch pipe connected to the second oil inlet chamber 231 of the second oil inlet three-way pipe 24 to always maintain a passage, and then controls one of the main branch pipe connected to the main diesel filter element 21 and the standby branch pipe connected to the standby diesel filter element 22 to communicate with the oil inlet branch pipe for main-standby switching. The second oil outlet three-way pipe 26 is respectively connected to the second oil outlet chamber 232 of the diesel oil separator 23, the oil inlet of the main diesel filter element 21, and the oil inlet of the standby diesel filter element 22. A second oil outlet three-way valve 27 is provided at the three-way of the second oil outlet three-way pipe 26. The second oil outlet three-way valve 27 controls the connection between the second oil outlet chamber 232 of the diesel oil separator 23 and the oil inlet of the main diesel filter element 21 or the connection between the second oil outlet chamber 232 of the diesel oil separator 23 and the oil inlet of the standby diesel filter element 22. That is, the second oil outlet three-way valve 27 controls the oil outlet branch pipe connected to the second oil outlet chamber 232 of the second oil outlet three-way pipe 26 to always maintain a passage, and then controls one of the main branch pipe connected to the main diesel filter element 21 and the standby branch pipe connected to the standby diesel filter element 22 to communicate with the oil outlet branch pipe for main-standby switching. Both the second oil inlet three-way valve 25 and the second oil outlet three-way valve 27 are electrically connected to the controller 4. The controller 4 controls the second oil inlet three-way valve 25 and the second oil outlet three-way valve 27 to conduct simultaneously in the direction of the main diesel filter element 21 or simultaneously in the direction of the standby diesel filter element 22 to achieve main-standby switching. Figure 1The solid arrow indicates the primary direction, and the dashed arrow indicates the standby direction. Flow of diesel through the primary filter element: Diesel first flows from the second oil outlet chamber 232 of the diesel oil separator 23 into the second oil outlet three-way pipe 26. The second oil outlet three-way valve 27 is opened towards the primary diesel filter element 21. Diesel flows into the inlet of the primary diesel filter element 21, is filtered by the primary diesel filter element 21, and then flows out from the outlet of the primary diesel filter element 21, reaching the second inlet three-way pipe 24. The second oil outlet three-way valve 25 is also opened towards the primary diesel filter element 21, and then it flows into the second inlet chamber 231 of the diesel oil separator 23. Flow of diesel through the standby filter element: Diesel first flows from the second oil outlet chamber 232 of the diesel oil separator 23 into the second oil outlet three-way pipe 26. The second oil outlet three-way valve 27 is opened towards the standby diesel filter element 22. Diesel flows into the inlet of the standby diesel filter element 22, is filtered by the standby diesel filter element 22, and then flows out from the outlet of the standby diesel filter element 22, reaching the second inlet three-way pipe 24. The second inlet three-way valve 25 is also opened towards the standby diesel filter element 22, and then it flows into the second inlet chamber 231 of the diesel oil separator 23.

[0028] The air filtration system 3 includes a primary air filter element 31, a standby air filter element 32, an intake three-way pipe 33, and an intake three-way valve 34. The intake three-way pipe 33 is respectively connected to the intake port of the engine, the outlet of the primary air filter element 31, and the outlet of the standby air filter element 32. An intake three-way valve 34 is provided at the three-way junction of the intake three-way pipe 33. The intake three-way valve 34 controls the connection between the intake port of the engine and the inlet of the primary air filter element 31 or the connection between the intake port of the engine and the outlet of the standby air filter element 32. The intake three-way valve 34 is electrically connected to the controller 4, and the controller 4 is used to control the conduction direction of the intake three-way valve 34. That is, the intake three-way valve 34 controls the intake branch pipe connected to the intake port of the engine in the intake three-way pipe 33 to always remain open, and then controls one of the primary branch pipe connected to the primary air filter element 31 and the standby branch pipe connected to the standby air filter element 32 to be connected to the intake branch pipe for primary-standby switching. Figure 1 The solid arrow indicates the primary direction, and the dashed arrow indicates the standby direction.

[0029] Optionally, an air resistance indicator 35 is provided on the pipeline of the intake three-way pipe 33 connected to the engine intake port, that is, the air resistance controller 4 is arranged on the intake branch pipe of the intake three-way pipe 33. The air resistance indicator 35 is electrically connected to the controller 4, and the controller 4 controls the conduction direction of the intake three-way valve 34 according to the air resistance measured by the air resistance indicator 35. The air resistance indicator 35 is used to detect the intake resistance and preferentially select the main filtration direction. The intake three-way valve 34 conducts in the direction of the main air filter element 31. The air resistance indicator 35 detects the air resistance in real time. When the air resistance reaches the threshold value, it indicates that the main air filter element 31 is blocked and has reached the service life and needs to be replaced. At this time, the controller 4 controls the main filtration direction to be closed and controls the intake three-way valve 34 to conduct in the direction of the standby air filter element 32, and uses the standby air filter element 32 for air filtration. When the air resistance reaches the threshold value again, it indicates that the standby air filter element 32 is also blocked and needs to be replaced. At this time, the main air filter element 31 and the standby air filter element 32 can be replaced simultaneously, extending the filter element replacement time and doubling the engine maintenance cycle.

[0030] Similarly, the service lives of the engine oil filter element and the diesel filter element are known. After the main filter element reaches the service life, the switching to the standby direction can be controlled through the three-way valve, and the standby filter element is used. After the standby filter element also reaches the service life, the main and standby filter elements can be replaced simultaneously, extending the filter element replacement time and doubling the engine maintenance cycle.

[0031] In some embodiments, such as Figure 2As shown in the figure, the diesel engine filtration system of the present application further includes an oil-water separation and filtration system 5. The oil-water separation and filtration system 5 includes a main oil-water separation filter element 51, a standby oil-water separation filter element 52, a liquid distributor 53, a third oil inlet three-way pipe 54, a third oil inlet three-way valve 55, a liquid outlet three-way pipe 56, and a liquid outlet three-way valve 57. The liquid distributor 53 is connected to the base of the original oil-water separation filter element 8. Without changing the structure of the diesel engine, the oil-water separation and filtration system 5 of the present application can be directly installed at the position where the original oil-water separation filter element is installed. The liquid distributor 53 includes an independent third oil inlet chamber 531 and a liquid outlet chamber 532. Oil pipe joints can be provided at the oil inlet of the third oil inlet chamber 531 and the liquid outlet of the liquid outlet chamber 532 for connection to pipelines. The third oil inlet three-way pipe 54 is respectively connected to the third oil inlet chamber 531 of the liquid distributor 53, the oil outlet of the main oil-water separation filter element 51, and the oil outlet of the standby oil-water separation filter element 52. A third oil inlet three-way valve 55 is provided at the three-way of the third oil inlet three-way pipe 54. The third oil inlet three-way valve 55 controls the connection between the third oil inlet chamber 531 of the liquid distributor 53 and the oil outlet of the main oil-water separation filter element 51 or the connection between the third oil inlet chamber 531 of the liquid distributor 53 and the oil outlet of the standby oil-water separation filter element 52. That is, the third oil inlet three-way valve 55 controls the oil inlet branch pipe connected to the third oil inlet chamber 531 of the third oil inlet three-way pipe 54 to always remain open, and then controls one of the main branch pipe connected to the main oil-water separation filter element 51 and the standby branch pipe connected to the standby oil-water separation filter element 52 to communicate with the oil inlet branch pipe for main-standby switching. The liquid outlet three-way pipe 56 is respectively connected to the liquid outlet chamber 532 of the liquid distributor 53, the liquid inlet of the main oil-water separation filter element 51, and the liquid inlet of the standby oil-water separation filter element 52. A liquid outlet three-way valve 57 is provided at the three-way of the liquid outlet three-way pipe 56. The liquid outlet three-way valve 57 controls the connection between the liquid outlet chamber 532 of the liquid distributor 53 and the liquid inlet of the main oil-water separation filter element 51 or the connection between the liquid outlet chamber 532 of the liquid distributor 53 and the liquid inlet of the standby oil-water separation filter element 52. That is, the liquid outlet three-way valve 57 controls the liquid outlet branch pipe connected to the liquid outlet chamber 532 of the liquid outlet three-way pipe 56 to always remain open, and then controls one of the main branch pipe connected to the main oil-water separation filter element 51 and the standby branch pipe connected to the standby oil-water separation filter element 52 to communicate with the liquid outlet branch pipe for main-standby switching. Both the third oil inlet three-way valve 55 and the liquid outlet three-way valve 57 are electrically connected to the controller 4. The controller 4 controls the third oil inlet three-way valve 55 and the liquid outlet three-way valve 57 to conduct simultaneously in the direction of the main oil-water separation filter element 51 or simultaneously in the direction of the standby oil-water separation filter element 52 to achieve main-standby switching. Figure 2The solid-line arrow is the main direction, and the dashed-line arrow is the standby direction. The oil-water separation flow direction of the main filter element: The oil-water mixture first flows from the liquid outlet cavity 532 of the liquid distributor 53 into the liquid outlet three-way pipe 56. The liquid outlet three-way valve 57 is opened to the direction of the main oil-water separation filter element 51. The oil-water mixture flows into the liquid inlet of the main oil-water separation filter element 51, is filtered by the main oil-water separation filter element 51, and the separated oil flows out from the oil outlet of the main oil-water separation filter element 51, flows to the third oil inlet three-way pipe 54. The third oil inlet three-way valve 55 is also opened to the direction of the main oil-water separation filter element 51 and then flows into the third oil inlet cavity 531 of the liquid distributor 53. The oil-water separation flow direction of the standby filter element: The oil-water mixture first flows from the liquid outlet cavity 532 of the liquid distributor 53 into the liquid outlet three-way pipe 56. The liquid outlet three-way valve 57 is opened to the direction of the standby oil-water separation filter element 52. The oil-water mixture flows into the liquid inlet of the standby oil-water separation filter element 52, is filtered by the standby oil-water separation filter element 52, and the separated oil flows out from the oil outlet of the standby oil-water separation filter element 52, flows to the third oil inlet three-way pipe 54. The third oil inlet three-way valve 55 is also opened to the direction of the standby oil-water separation filter element 52 and then flows into the third oil inlet cavity 531 of the liquid distributor 53.

[0032] Optionally, the first oil inlet three-way valve 15 is an L-shaped electric three-way ball valve or a three-way solenoid valve, the first oil outlet three-way valve 17 is an L-shaped electric three-way ball valve or a three-way solenoid valve, the second oil inlet three-way valve 25 is an L-shaped electric three-way ball valve or a three-way solenoid valve, the second oil outlet three-way valve 27 is an L-shaped electric three-way ball valve or a three-way solenoid valve, the air inlet three-way valve 34 is an L-shaped electric three-way ball valve or a three-way solenoid valve, the third oil inlet three-way valve 55 is an L-shaped electric three-way ball valve or a three-way solenoid valve, and the liquid outlet three-way valve 57 is an L-shaped electric three-way ball valve or a three-way solenoid valve. The L-shaped electric three-way ball valve or the three-way solenoid valve can control the switching to connect two mutually orthogonal pipelines, and can all realize the switching of the passage through the control of the controller 4, realizing the automatic control of the main-standby switching.

[0033] Optionally, the first oil inlet three-way pipe 14 is threadedly connected to the oil inlet of the first oil inlet chamber 131 of the oil separator 13, the oil outlet of the main oil filter element 11, and the oil outlet of the standby oil filter element 12 and sealed by a sealing ring. The first oil outlet three-way pipe 16 is threadedly connected to the oil outlet of the first oil outlet chamber 132 of the oil separator 13, the oil inlet of the main oil filter element 11, and the oil inlet of the standby oil filter element 12 and sealed by a sealing ring. The second oil inlet three-way pipe 24 is threadedly connected to the oil inlet of the second oil inlet chamber 231 of the diesel oil separator 23, the oil outlet of the main diesel filter element 21, and the oil outlet of the standby diesel filter element 22 and sealed by a sealing ring. The second oil outlet three-way pipe 26 is threadedly connected to the oil outlet of the second oil outlet chamber 232 of the diesel oil separator 23, the oil inlet of the main diesel filter element 21, and the oil inlet of the standby diesel filter element 22 and sealed by a sealing ring. The intake air three-way pipe 33 is threadedly connected to the intake port of the engine, the air outlet of the main air filter element 31, and the air outlet of the standby air filter element 32 and sealed by a sealing ring. The third oil inlet three-way pipe 54 is threadedly connected to the oil inlet of the third oil inlet chamber 531 of the liquid separator 53, the oil outlet of the main oil-water separation filter element 51, and the oil outlet of the standby oil-water separation filter element 52 and sealed by a sealing ring. The liquid outlet three-way pipe 56 is threadedly connected to the liquid outlet of the liquid outlet chamber 532 of the liquid separator 53, the liquid inlet of the main oil-water separation filter element 51, and the liquid inlet of the standby oil-water separation filter element 52 and sealed by a sealing ring. Preferably, the sealing ring is a high-temperature resistant rubber ring. The pipelines are butt-jointed by threads and the rubber sealing ring is squeezed for sealing. The rigid connection is stable and the sealing effect is good.

[0034] The controller 4 is communicatively connected to the upper computer through a communication device, and remote control can be performed through the upper computer. The communication device can be a wireless communication device, including one or several of a WiFi wireless communication device, a ZigBee wireless communication device, and an Ethernet communication module.

[0035] Taking each three-way valve as an L-type electric three-way ball valve as an example to illustrate the control principle of the controller 4 of the present application. The L-type electric three-way ball valve realizes the switching of the main and standby directions by controlling the forward and reverse rotation of the internal motor. Moreover, an opening position feedback switch is provided in the L-type electric three-way ball valve. The control circuit of the controller 4 and the connection relationship with each three-way valve are as Figure 3 shown Figure 3 In the figure, the electrical connection between each three-way valve and the controller 4 is realized through 10 relays (KA1, KA2, KA3, KA4, KA5, KA6, KA7, KA8, KA9, KA10). Each three-way valve is connected to two relays. The forward and reverse rotation of the motor is controlled by controlling the closing state of the normally open contacts of the two relays, thereby controlling the opening direction of the three-way valve. The controller 4 is a PLC controller. In the control circuit, I is the input terminal and Q is the output terminal.

[0036] Taking the inlet oil as an example to illustrate the control principle, when the first inlet oil three-way valve 15 needs to be opened to the main use direction, the PLC controller controls Q0.0 to be set as an output, the coil of relay KA1 is energized, and the two normally open points of relay KA1 are closed. The motor gets the forward rotation power supply, and the ball valve of the first inlet oil three-way valve 15 starts to turn to the main use direction. When the internal main use inlet oil direction opening position feedback switch is closed, the motor power supply is automatically cut off inside, and when the PLC controller gets the I0.0 signal, the Q0.0 output is cut off, the Q0.0 output is reset, and the motor start-up power supply is cut off externally. When the first inlet oil three-way valve 15 needs to be opened to the standby direction, the PLC controller controls Q0.1 to be set as an output, the coil of relay KA2 is energized, and the two normally open points of relay KA2 are closed. The motor gets the reverse rotation power supply, and the ball valve of the first inlet oil three-way valve 15 starts to turn to the standby direction. When the internal standby inlet oil direction opening position feedback switch is closed, the motor power supply is automatically cut off inside, and when the PLC controller gets the I0.1 signal, the Q0.1 output is cut off, the Q0.1 output is reset, and the motor start-up power supply is cut off externally.

[0037] To prevent the main and standby opening directions of the inlet and outlet three-way valves from being different, the controller 4 is set to open to the main filter element at the same time, or open to the standby filter element at the same time, and the control buttons of each group of three-way valves are interlocked by the PLC program to avoid short circuit of the positive and negative poles. The control principles of other three-way valves are the same.

[0038] The control principle of the air resistance indicator 35 is as follows: when the air filter element is blocked, the negative pressure in the pipe increases, the switch quantity of the air resistance indicator 35 is closed, I1.0 gets the signal, which is uploaded to the controller for indication, and the main and standby switching is carried out or the main air filter element 31 and the standby air filter element 32 are replaced.

[0039] The diesel engine filtration system of the present application can cooperate with the remote control oil change system to realize the engine oil maintenance.

[0040] In summary, the present application can double the maintenance duration of the diesel engine, can remotely control the maintenance of the three filters (oil filter, diesel filter and air filter) of the engine, and can reduce the frequency of the operators of the unattended power station going to the harsh site.

[0041] In the description of the present utility model, it should be understood that the orientation or positional relationship indicated by the terms "center", "longitudinal", "transverse", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "radial", "circumferential", etc. is based on the orientation or positional relationship shown in the drawings, and is only for the convenience of describing the present utility model 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 thus should not be construed as a limitation to the present utility model.

[0042] In the present utility model, unless otherwise clearly defined and limited, the terms "installed", "connected", "connected to", "fixed", etc. should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or integrated; it can be a mechanical connection or an electrical connection; it can be directly connected or indirectly connected through an intermediate medium, and can be the communication inside two elements or the interaction relationship between two elements, unless otherwise clearly limited. For those of ordinary skill in the art, the specific meanings of the above terms in the present utility model can be understood according to specific circumstances.

[0043] In the description of this specification, the descriptions with reference to the terms "this embodiment", "one embodiment", "some embodiments", "examples", "specific examples", or "some examples", etc. mean that the specific features, structures, materials, or characteristics described in connection with the embodiment or example are included in at least one embodiment or example of the present utility model. In this specification, the schematic expressions of the above terms do not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials, or characteristics described can be combined in a suitable manner in any at least one embodiment or example. In addition, without contradiction, those skilled in the art can combine and combine the different embodiments or examples described in this specification and the features of different embodiments or examples.

[0044] In addition, the terms "first" and "second" are only used for descriptive purposes and cannot be understood as indicating or implying relative importance or implicitly indicating the quantity of the indicated technical features. Thus, the features defined with "first" and "second" can explicitly or implicitly include at least one of such features. In the description of the present utility model, the meaning of "a plurality" is at least two, such as two, three, etc., unless otherwise clearly and specifically defined.

[0045] The above are only the preferred embodiments of the present utility model and are not intended to limit the present utility model. Any modifications, equivalent replacements, and simple improvements made to the substantial content of the present utility model should be included in the protection scope of the present utility model.

Claims

1. A diesel engine filtration system, characterized in that, Including an engine oil filtration system (1), a diesel filtration system (2), an air filtration system (3), and a controller (4), The engine oil filtration system (1) includes a main engine oil filter element (11), a standby engine oil filter element (12), an engine oil distributor (13), a first inlet three-way pipe (14), a first inlet three-way valve (15), a first outlet three-way pipe (16), and a first outlet three-way valve (17). The engine oil distributor (13) is connected to the original engine oil filter element base (6). The engine oil distributor (13) includes an independent first inlet chamber (131) and a first outlet chamber (132). The first inlet three-way pipe (14) is respectively connected to the first inlet chamber (131) of the engine oil distributor (13), the outlet of the main engine oil filter element (11), and the outlet of the standby engine oil filter element (12). The first inlet three-way valve (15) is provided at the three-way of the first inlet three-way pipe (14). The first inlet three-way valve (15) controls the communication between the first inlet chamber (131) of the engine oil distributor (13) and the outlet of the main engine oil filter element (11) or the communication between the first inlet chamber (131) of the engine oil distributor (13) and the outlet of the standby engine oil filter element (12). The first outlet three-way pipe (16) is respectively connected to the first outlet chamber (132) of the engine oil distributor (13), the inlet of the main engine oil filter element (11), and the inlet of the standby engine oil filter element (12). The first outlet three-way valve (17) is provided at the three-way of the first outlet three-way pipe (16). The first outlet three-way valve (17) controls the communication between the first outlet chamber (132) of the engine oil distributor (13) and the inlet of the main engine oil filter element (11) or the communication between the first outlet chamber (132) of the engine oil distributor (13) and the inlet of the standby engine oil filter element (12). The first inlet three-way valve (15) and the first outlet three-way valve (17) are both electrically connected to the controller (4). The controller (4) controls the first inlet three-way valve (15) and the first outlet three-way valve (17) to conduct simultaneously in the direction of the main engine oil filter element (11) or to conduct simultaneously in the direction of the standby engine oil filter element (12); The diesel filter system (2) includes a main diesel filter element (21), a standby diesel filter element (22), a diesel oil separator (23), a second inlet three-way pipe (24), a second inlet three-way valve (25), a second outlet three-way pipe (26) and a second outlet three-way valve (27). The diesel oil separator (23) is connected to the original diesel filter element base (7). The diesel oil separator (23) includes an independent second inlet chamber (231) and a second outlet chamber (232). The second inlet three-way pipe (24) is respectively connected to the second inlet chamber (231) of the diesel oil separator (23), the outlet of the main diesel filter element (21) and the outlet of the standby diesel filter element (22). The second inlet three-way valve (25) is provided at the three-way of the second inlet three-way pipe (24). The second inlet three-way valve (25) controls the connection between the second inlet chamber (231) of the diesel oil separator (23) and the outlet of the main diesel filter element (21) or the connection between the second inlet chamber (231) of the diesel oil separator (23) and the outlet of the standby diesel filter element (22). The second outlet three-way pipe (26) is respectively connected to the second outlet chamber (232) of the diesel oil separator (23), the inlet of the main diesel filter element (21) and the inlet of the standby diesel filter element (22). The second outlet three-way valve (27) is provided at the three-way of the second outlet three-way pipe (26). The second outlet three-way valve (27) controls the connection between the second outlet chamber (232) of the diesel oil separator (23) and the inlet of the main diesel filter element (21) or the connection between the second outlet chamber (232) of the diesel oil separator (23) and the inlet of the standby diesel filter element (22). The second inlet three-way valve (25) and the second outlet three-way valve (27) are both electrically connected to the controller (4). The controller (4) controls the second inlet three-way valve (25) and the second outlet three-way valve (27) to conduct simultaneously in the direction of the main diesel filter element (21) or to conduct simultaneously in the direction of the standby diesel filter element (22). The air filter system (3) includes a main air filter element (31), a standby air filter element (32), an intake three-way pipe (33) and an intake three-way valve (34). The intake three-way pipe (33) is respectively connected to the intake port of the engine, the outlet of the main air filter element (31) and the outlet of the standby air filter element (32). The intake three-way valve (34) is provided at the three-way of the intake three-way pipe (33). The intake three-way valve (34) controls the connection between the intake port of the engine and the inlet of the main air filter element (31) or the connection between the intake port of the engine and the outlet of the standby air filter element (32). The intake three-way valve (34) is electrically connected to the controller (4). The controller (4) is used to control the conduction direction of the intake three-way valve (34).

2. The diesel engine filtration system according to claim 1, characterized in that, An air resistance indicator (35) is provided on the pipeline of the intake three-way pipe (33) connected to the engine intake port. The air resistance indicator (35) is electrically connected to the controller (4), and the controller (4) controls the conduction direction of the intake three-way valve (34) according to the air resistance measured by the air resistance indicator (35).

3. The diesel engine filtration system according to claim 1 or 2, characterized in that, It further includes an oil-water separation and filtration system (5). The oil-water separation and filtration system (5) includes a main oil-water separation filter element (51), a standby oil-water separation filter element (52), a liquid distributor (53), a third oil inlet three-way pipe (54), a third oil inlet three-way valve (55), a liquid outlet three-way pipe (56), and a liquid outlet three-way valve (57). The liquid distributor (53) is connected to the base of the crude oil-water separation filter element (8). The liquid distributor (53) includes an independent third oil inlet chamber (531) and a liquid outlet chamber (532). The third oil inlet three-way pipe (54) is respectively connected to the third oil inlet chamber (531) of the liquid distributor (53), the oil outlet of the main oil-water separation filter element (51), and the oil outlet of the standby oil-water separation filter element (52). The third oil inlet three-way valve (55) is provided at the three-way of the third oil inlet three-way pipe (54). The third oil inlet three-way valve (55) controls the communication between the third oil inlet chamber (531) of the liquid distributor (53) and the oil outlet of the main oil-water separation filter element (51) or the communication between the third oil inlet chamber (531) of the liquid distributor (53) and the oil outlet of the standby oil-water separation filter element (52). The liquid outlet three-way pipe (56) is respectively connected to the liquid outlet chamber (532) of the liquid distributor (53), the liquid inlet of the main oil-water separation filter element (51), and the liquid inlet of the standby oil-water separation filter element (52). The liquid outlet three-way valve (57) is provided at the three-way of the liquid outlet three-way pipe (56). The liquid outlet three-way valve (57) controls the communication between the liquid outlet chamber (532) of the liquid distributor (53) and the liquid inlet of the main oil-water separation filter element (51) or the communication between the liquid outlet chamber (532) of the liquid distributor (53) and the liquid inlet of the standby oil-water separation filter element (52). The third oil inlet three-way valve (55) and the liquid outlet three-way valve (57) are both electrically connected to the controller (4). The controller (4) controls the third oil inlet three-way valve (55) and the liquid outlet three-way valve (57) to conduct simultaneously in the direction of the main oil-water separation filter element (51) or simultaneously in the direction of the standby oil-water separation filter element (52).

4. The diesel engine filtration system according to claim 1, characterized in that, The first oil inlet three-way valve (15) is an L-shaped electric three-way ball valve or a three-way solenoid valve, and / or, the first oil outlet three-way valve (17) is an L-shaped electric three-way ball valve or a three-way solenoid valve.

5. The diesel engine filtration system according to claim 1, characterized in that, The second oil inlet three-way valve (25) is an L-shaped electric three-way ball valve or a three-way solenoid valve, and / or, the second oil outlet three-way valve (27) is an L-shaped electric three-way ball valve or a three-way solenoid valve.

6. The diesel engine filtration system according to claim 1 or 2, characterized in that, The intake three-way valve (34) is an L-shaped electric three-way ball valve or a three-way solenoid valve.

7. The diesel engine filtration system according to claim 1, wherein The first oil inlet three-way pipe (14) is threadedly connected to the oil inlet of the first oil inlet chamber (131) of the oil separator (13), the oil outlet of the main engine oil filter element (11), and the oil outlet of the standby engine oil filter element (12), and is sealed by a sealing ring, and / or, the first oil outlet three-way pipe (16) is threadedly connected to the oil outlet of the first oil outlet chamber (132) of the oil separator (13), the oil inlet of the main engine oil filter element (11), and the oil inlet of the standby engine oil filter element (12), and is sealed by a sealing ring.

8. The diesel engine filtration system according to claim 1, wherein, The second oil inlet three-way pipe (24) is threadedly connected to the oil inlet of the second oil inlet chamber (231) of the diesel oil separator (23), the oil outlet of the main diesel oil filter element (21), and the oil outlet of the standby diesel oil filter element (22), and is sealed by a sealing ring, and / or, the second oil outlet three-way pipe (26) is threadedly connected to the oil outlet of the second oil outlet chamber (232) of the diesel oil separator (23), the oil outlet of the main diesel oil filter element (21), and the oil inlet of the standby diesel oil filter element (22), and is sealed by a sealing ring.

9. The diesel engine filtration system according to claim 1, wherein The intake air three-way pipe (33) is threadedly connected to the intake air port of the engine, the air outlet of the main air filter element (31), and the air outlet of the standby air filter element (32), and is sealed by a sealing ring.

10. The diesel engine filtration system according to claim 1, wherein The controller (4) is communicatively connected to the upper computer through a communication device.

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