Coarse filtering and fine filtering integrated diesel oil filtering device and filtering process thereof

Abstract

The invention discloses a coarse filtering and fine filtering integrated diesel filtering device and a filtering process thereof, and relates to the technical field of diesel filtering. The top of a main body is fixedly connected with a feeding port, the inner side of the main body is fixedly connected with a fine filtering part, and the bottom of the fine filtering part is fixedly connected with a discharging pipe; by arranging the blockage clearing mechanism, when a connecting frame is subjected to impact force of diesel oil, the connecting frame drives an ejection assembly and a separation filter screen plate to move downwards through a connecting shaft, meanwhile, after filtering work is finished, the connecting frame moves upwards through reset stretching work of a first spring, and the blockage clearing mechanism is used for clearing the blockage of the main body; the connecting frame drives the ejection assembly to eject out and clean the meshes of the filter screen plate, so that the phenomenon that the meshes of the filter screen plate are blocked due to the fact that large particle impurities block the meshes of the filter screen plate when the filter screen plate filters diesel oil is avoided.

Description

Technical Field

[0001] The invention relates to the technical field of diesel filtration, and in particular to a coarse and fine filter integrated diesel filtration device and a filtration process thereof. Background Art

[0002] A diesel filter is a device used to purify diesel. Its main function is to remove harmful substances such as impurities, moisture, and colloids in diesel to ensure that the quality of fuel entering the diesel engine meets the requirements. Its purpose is to protect the engine's fuel system, including precision parts such as injectors, plungers, and oil delivery valves, reduce wear and blockage, and extend the service life of the engine. It also helps to improve the engine's combustion efficiency and reduce exhaust emissions.

[0003] After the coarse filter intercepts impurities, some of the impurities may adhere to and clog the filter mesh, causing the filter to become clogged, thereby reducing the service life of the coarse filter. Summary of the invention

[0004] In view of the shortcomings of the prior art, the present invention adopts a technical solution to solve the technical problems: a coarse and fine filter integrated diesel filter device and a filtering process thereof described in the present invention include: A main body, wherein a feed port is fixedly connected to the top of the main body, a fine filter component is fixedly connected to the inner side of the main body, a discharge pipe is fixedly connected to the bottom of the fine filter component, and a material receiving component is fixedly connected to the side of the main body; A coarse filter component, which is used to filter the diesel entering the main body, and the side surface of the coarse filter component is fixedly connected to the inner side of the main body; The fine filter component includes a filter housing, a filter paper mechanism is fixedly connected to the inner side of the filter housing, a mesh plate is fixedly connected to the top of the filter housing, a bypass valve is fixedly connected to the top of the mesh plate, the top of the bypass valve is fixedly connected to the inner side of the feed inlet, the bottom of the filter housing is fixedly connected to the discharge pipe, and a check valve is fixedly connected to the inner side of the filter housing; after coarse filtration, the diesel enters the filter housing through the mesh plate, so that the filter paper mechanism filters the diesel after coarse filtration. The filter paper mechanism usually adopts a folded filter paper structure to increase the filtration area, improve the filtration efficiency and reduce the filtration resistance. The filter paper is installed on a special filter element skeleton to ensure that its shape is stable and can withstand a certain pressure. The filter material can remove tiny impurities in diesel, such as colloid, tiny metal particles, unburned carbon particles, etc. When the filter housing and filter paper mechanism are blocked due to excessive impurities, resulting in excessive resistance to diesel flow, the bypass valve will automatically open. The opening pressure of the bypass valve is generally set at a value slightly higher than the normal working pressure. This ensures that in the event of a fault, diesel can still flow to the engine and other equipment through the bypass valve to avoid engine shutdown due to blockage of the filter device. The check valve can prevent damage to the filter device itself due to diesel backflow. If diesel backflows, the impurities that have been filtered out may be brought back to the inside of the filter device, or reverse pressure shock may be caused to the filter element and other components, affecting the service life and filtering effect of the filter element. Preferably, the coarse filtering component comprises a collecting box and a filter mechanism, the inner side of the collecting box is fixedly connected to the side of the main body, the two sides of the inner wall of the collecting box are fixedly connected to the first air suction machine, the inner side of the collecting box is symmetrically provided with a receiving port, the filter mechanism is arranged below the feed port, the side of the filter mechanism is fixedly connected to the inner side of the main body, and the bottom of the filter mechanism is fixedly connected to a clearing mechanism; when the diesel is pumped out of the fuel tank by the fuel pump, it enters the main body through the feed port, and the impact force of the diesel is driven by the fuel pump, so that the filter mechanism resists and filters the larger particulate impurities in the diesel, and at the same time, the clearing mechanism is subjected to the impact force of the diesel entering the main body, so that the clearing mechanism moves downward; The clearing mechanism comprises a connecting frame, the top of the connecting frame is fixedly connected with a connecting shaft, the top of the connecting shaft is slidably connected to the inner side of the filter screen plate, a first spring is sleeved on the connecting shaft, the top of the first spring is fixedly connected to the bottom of the filter screen plate, the bottom of the first spring is fixedly connected to the top of the connecting frame, both sides of the connecting frame are fixedly connected with connecting rods, one end of the connecting rod away from the connecting frame is fixedly connected with a baffle, the side of the baffle is slidably connected to the inner side of the receiving port, and the top of the connecting frame is fixedly connected with an ejection assembly; when the filter screen plate filters the diesel, the connecting frame When the diesel is impacted, the connecting frame drives the ejection assembly through the connecting shaft, separates from the filter plate and moves downward, and at the same time, the connecting frame drives the baffle to slide downward inside the receiving port through the connecting rod, so that the baffle blocks the receiving port. At the same time, when the filtering work is finished, the connecting frame moves upward through the reset stretching work of the first spring, so that the connecting frame drives the ejection assembly to eject and clean the mesh of the filter plate, thereby preventing larger particle impurities from being blocked in the mesh of the filter plate when the filter plate is filtering diesel, thereby causing the mesh of the filter plate to be blocked; Preferably, the ejection assembly includes an ejection rod, the bottom of the ejection rod is fixedly connected to the top of the connecting frame, a notch is provided on the side of the ejection rod, a slider is slidably connected to the inner side of the notch, a sliding rod is fixedly connected to the side of the sliding rod, the side of the sliding rod is slidably connected to the inner side of the ejection rod, the top of the sliding rod is fixedly connected to an ejection block, the ejection block is concentrically arranged with the mesh of the filter plate, a second spring is sleeved on the sliding rod, the top of the second spring is fixedly connected to the bottom of the ejection block, and the bottom of the second spring is fixedly connected to the top of the ejection rod; when the filtering work is completed, the connecting frame is released by the first spring The reset stretching work moves upward, and the connecting frame drives the ejection block through the ejection rod to eject the particle impurities blocked in the mesh of the filter plate. At the same time, when the extrusion force between the ejection block and the particle impurities blocked in the mesh of the filter plate is greater than the tensile force of the second spring, the slide bar drives the ejection block to move downward through the slider, and at the same time, the buffering work of the second spring is used to avoid excessive extrusion pressure between the ejection block and the impurities blocked in the mesh of the filter plate, thereby causing excessive extrusion pressure between the particle impurities and the inner side of the mesh of the filter plate, causing friction damage to the inner side of the mesh of the filter plate, and then causing the mesh to expand; Preferably, the filter mechanism comprises a filter plate, the side surface of the filter plate is fixedly connected to the inner side of the main body, the top of the filter plate is provided with an inclined groove, the inner side of the inclined groove is symmetrically provided with a material dropping groove, and the material dropping groove is arranged close to the receiving port; when the filtering work is completed, the connecting frame moves upward through the reset stretching work of the first spring, and the ejection component ejects the impurities blocked in the mesh of the filter plate, and at the same time, the connecting frame drives the baffle to slide upward on the inner side of the receiving port through the connecting rod, so that the ejection component ejects the larger particle impurities blocked in the mesh of the filter plate, and at the same time, by setting the top of the filter plate to an arc surface, the surface of the filter plate is The middle part is high and the side part is low, so that the ejection component can eject the particle impurities blocked in the mesh of the filter plate, and the particle impurities can slide along the arc surface of the filter plate to enter the inclined groove. At the same time, the inner side of the inclined groove is set from high to low, and the closer the inclined surface is to the blanking groove, the lower it is, so that the particle impurities entering the inclined groove can slide toward the blanking groove in the inclined groove. At the same time, by turning on the first air suction machine, the particle impurities gathered in the blanking groove are collected by the first air suction machine, so as to avoid the filter plate blocking the filtered particle impurities, and still exist around the filter plate, so as to accelerate the clogging of the filter plate during the subsequent filtering work; Preferably, the material receiving component comprises a collecting shell, both sides of the inner wall of the collecting shell are fixedly connected with a second air sucker, a side of the collecting shell away from the second air sucker is fixedly connected with a dirt suction mechanism, and one end of the dirt suction mechanism away from the collecting shell is fixedly connected to the inner side of the filter shell; when the filter shell is discharged, the second air sucker is turned on, and the suction force generated by the second air sucker draws the impurities, moisture deposited in the filter shell and the dirt intercepted by the filter element into the collecting shell through the dirt suction mechanism to collect the dirt, thereby preventing pollution to the environment; Preferably, the sewage suction mechanism comprises a sewage suction pipe, one end of the sewage suction pipe is fixedly connected to the inner side of the collecting shell, and the other end of the sewage suction pipe is fixedly connected to the inner side of the filter shell, and the sewage suction pipe is rotatably connected to the gate valve at one end close to the filter shell, and the inner side of the other end of the sewage suction pipe is fixedly connected to a one-way valve. The inner side of the sewage suction pipe is fixedly connected to a bracket one, and the side surface of the bracket one is fixedly connected to a guide rod, and the guide rod is fixedly connected to a bracket two at an end away from the bracket one, and the side surface of the bracket two is fixedly connected to the inner side of the sewage suction pipe, and the side of the bracket one close to the guide rod is fixedly connected to a third spring, and the other end of the third spring is fixedly connected to a moving frame, and the inner side of the moving frame is slidably connected to the side surface of the guide rod, and scrapers are fixedly connected to both sides of the moving frame; when sewage suction work is carried out in the filter shell, the gate valve is opened, and the impurities, moisture deposited in the filter shell and intercepted by the filter element are removed by the suction force of the second suction machine. The dirt is sucked into the collection shell through the suction pipe and the one-way valve, and at the same time, the suction force of the second suction machine is used to drive the scraper to move and clean the inner side of the suction pipe. At the same time, when the movable frame is moving, the third spring in the stretched state is squeezed to prevent a large amount of dirt from adhering to the inner side of the suction pipe when passing through the suction pipe. The accumulation of impurities on the inner wall of the suction pipe will gradually reduce the effective inner diameter of the pipe. The attachment of impurities to the inner wall of the suction pipe will increase the flow resistance of the liquid and reduce its fluidity, thereby prolonging the suction time and reducing the work efficiency. At the same time, when the sewage discharge work is completed, the second suction machine is turned off, and the movable frame is driven by the reset of the third spring, thereby driving the movable frame to move, and the inner wall of the suction pipe is cleaned for the second time until the movable frame contacts and collides with the bracket, and then the scraper shakes off the attached impurities to prevent impurities from remaining on the scraper surface after the scraper has cleaned.

[0005] A process for coarse and fine filter integrated diesel filtration comprises the following steps: S1: Diesel is pumped out of the fuel tank by the oil pump, first passes through the feed port and enters the coarse filter component. Large impurities are intercepted on the surface of the coarse filter component. The preliminarily purified diesel flows to the fine filter component through the connecting pipe; S2: The diesel entering the fine filter component passes through high-precision filter paper or synthetic fiber filter material. In this process, tiny impurities are adsorbed and intercepted by the filter paper. The diesel after fine filtration reaches a higher cleanliness standard; S3: Open the material receiving part to discharge the impurities and water deposited in the fine filtering part.

[0006] The beneficial effects of the present invention are as follows: 1. The present invention provides a clearing mechanism. When the filter plate is filtering diesel and the connecting frame is subjected to the impact force of diesel, the connecting frame drives the ejection assembly through the connecting shaft to separate from the filter plate and move downward. At the same time, the connecting frame drives the baffle to slide downward on the inner side of the receiving port through the connecting rod, so that the baffle blocks the receiving port. At the same time, when the filtering work is completed, the connecting frame moves upward through the reset stretching work of the first spring, so that the connecting frame drives the ejection assembly to eject and clean the mesh holes of the filter plate, thereby avoiding the blockage of the mesh holes of the filter plate caused by larger particulate impurities when the filter plate is filtering diesel.

[0007] 2. The present invention provides an ejection assembly. When the filtering work is completed, the connecting frame moves upward through the reset stretching work of the first spring, and the connecting frame drives the ejection block through the ejection rod to eject the particulate impurities blocked in the mesh holes of the filter plate. At the same time, when the extrusion pressure between the ejection block and the particulate impurities blocked in the mesh holes of the filter plate is greater than the stretching force of the second spring, the slide rod drives the ejection block to move downward through the slider. At the same time, through the buffering work of the second spring, it is avoided that the extrusion pressure between the ejection block and the impurities blocked in the mesh holes of the filter plate is too large, which will cause the extrusion pressure between the particulate impurities and the inner side of the mesh holes of the filter plate to be too large, which will cause friction damage to the inner side of the mesh holes of the filter plate, and then cause the mesh holes to expand.

[0008] 3. The present invention sets a filter mechanism, sets the top of the filter plate as an arc surface, and sets the surface of the filter plate to be high in the middle and low on the sides, so that the ejection component can eject the particulate impurities blocked in the mesh of the filter plate. After the ejection, the particulate impurities can slide along the arc surface of the filter plate and enter the inclined groove. At the same time, the inner side of the inclined groove is set from high to low, and the closer to the blanking groove, the lower the inclined surface, so that the particulate impurities entering the inclined groove can slide toward the blanking groove in the inclined groove.

[0009] 4. The present invention provides a material collecting component. When the filter housing is discharged, the second suction machine is turned on. The suction force generated by the second suction machine draws the impurities and moisture deposited in the filter housing and the dirt intercepted by the filter element into the collection housing through the suction mechanism to collect the dirt, thereby preventing pollution to the environment. BRIEF DESCRIPTION OF THE DRAWINGS

[0010] Figure 1 It is a structural schematic diagram of the coarse and fine filter integrated diesel filter device of the present invention; Figure 2 is a cutaway view of the present invention; Figure 3 It is a schematic structural diagram of the fine filter component of the present invention; Figure 4It is a schematic structural diagram of the coarse filter component of the present invention; Figure 5 It is a structural schematic diagram of the blockage clearing mechanism of the present invention; Figure 6 The present invention Figure 5 The structural diagram at A in the middle; Figure 7 It is a structural schematic diagram of the filter mechanism of the present invention; Figure 8 It is a structural schematic diagram of the material receiving component of the present invention; Fig. 9 It is a structural schematic diagram of the sewage suction mechanism of the present invention; Fig.10 It is a process flow chart of the filtration process of the present invention; In the figure: 1, main body; 2, material receiving component; 21, collection shell; 22, second air suction machine; 23, sewage suction mechanism; 231, sewage suction pipe; 232, gate valve; 233, one-way valve; 234, bracket 1; 235, bracket 2; 236, guide rod; 237, third spring; 238, movable frame; 239, scraper; 3, coarse filter component; 31, collection box; 32, first air suction machine; 33, filter mechanism; 331, filter plate; 332, drop chute; 333, chute; 34, Blockage clearing mechanism; 341, connecting frame; 342, connecting rod; 343, baffle; 344, connecting shaft; 345, first spring; 346, ejector assembly; 3461, ejector rod; 3462, notch; 3463, slider; 3464, slide rod; 3465, ejector block; 3466, second spring; 35, material receiving port; 4, fine filter component; 41, filter housing; 42, check valve; 43, filter paper mechanism; 44, mesh plate; 45, bypass valve; 5, discharge pipe; 6, feed port. DETAILED DESCRIPTION

[0011] The present invention is further described in detail below in conjunction with the accompanying drawings and specific embodiments. The embodiments of the present invention are provided for the purpose of illustration and description, and are not intended to be exhaustive or to limit the present invention to the disclosed forms. Many modifications and variations will be apparent to those of ordinary skill in the art. The embodiments are selected and described in order to better illustrate the principles and practical applications of the present invention, and to enable those of ordinary skill in the art to understand the present invention and thereby design various embodiments with various modifications suitable for specific uses.

[0012] Example 1, using Figure 1-Figure 7 A crude and fine filter integrated diesel filter device according to one embodiment of the present invention is described as follows; like Figure 1-Figure 7 The present invention shows a coarse and fine filter integrated diesel filter device, comprising: A main body 1, a feed inlet 6 is fixedly connected to the top of the main body 1, a fine filter component 4 is fixedly connected to the inner side of the main body 1, a discharge pipe 5 is fixedly connected to the bottom of the fine filter component 4, and a material receiving component 2 is fixedly connected to the side of the main body 1; A coarse filter component 3, which is used to filter the diesel entering the main body 1, and a side surface of the coarse filter component 3 is fixedly connected to the inner side of the main body 1; The fine filter component 4 includes a filter housing 41, a filter paper mechanism 43 is fixedly connected to the inner side of the filter housing 41, a mesh plate 44 is fixedly connected to the top of the filter housing 41, a bypass valve 45 is fixedly connected to the top of the mesh plate 44, the top of the bypass valve 45 is fixedly connected to the inner side of the feed inlet 6, the bottom of the filter housing 41 is fixedly connected to the discharge pipe 5, and a check valve 42 is fixedly connected to the inner side of the filter housing 41; after coarse filtration, the diesel enters the filter housing 41 through the mesh plate 44, so that the filter paper mechanism 43 filters the diesel after coarse filtration. The filter paper mechanism 43 usually adopts a folded filter paper structure to increase the filtration area, improve the filtration efficiency and reduce the filtration resistance. The filter paper is installed on a special filter element skeleton to ensure that its shape is stable and can withstand a certain pressure. The filter material can remove tiny impurities in diesel, such as colloid, tiny metal particles, unburned carbon particles, etc. When the filter housing 41 and the filter paper mechanism 43 are blocked due to excessive impurities, resulting in excessive resistance to diesel flow, the bypass valve 45 will automatically open. The opening pressure of the bypass valve 45 is generally set at a value slightly higher than the normal working pressure, so that in the event of a fault, the diesel can still flow to the engine and other equipment through the bypass valve 45 to avoid the engine from shutting down due to the blockage of the filter device. The check valve 42 can prevent the filter device itself from being damaged by the backflow of diesel. If the diesel flows back, the impurities that have been filtered out may be brought back to the inside of the filter device, or a reverse pressure shock may be caused to the filter element and other components, affecting the service life and filtering effect of the filter element. The coarse filter component 3 includes a collecting box 31 and a filter mechanism 33. The inner side of the collecting box 31 is fixedly connected to the side of the main body 1. The first air suction machine 32 is fixedly connected to both sides of the inner wall of the collecting box 31. The inner side of the collecting box 31 is symmetrically provided with a receiving port 35. The filter mechanism 33 is arranged below the feed port 6. The side of the filter mechanism 33 is fixedly connected to the inner side of the main body 1. The bottom of the filter mechanism 33 is fixedly connected with a clearing mechanism 34. When the diesel is pumped out of the fuel tank by the oil pump, it enters the main body 1 through the feed port 6. The impact force of the diesel is driven by the oil pump, so that the filter mechanism 33 resists and filters the larger particulate impurities in the diesel. At the same time, the clearing mechanism 34 is subjected to the impact force of the diesel entering the main body 1, so that the clearing mechanism 34 moves downward. The clearing mechanism 34 comprises a connecting frame 341, the top of which is fixedly connected with a connecting shaft 344, the top of which is slidably connected to the inner side of the filter plate 331, a first spring 345 is sleeved on the connecting shaft 344, the top of the first spring 345 is fixedly connected to the bottom of the filter plate 331, the bottom of the first spring 345 is fixedly connected to the top of the connecting frame 341, both sides of the connecting frame 341 are fixedly connected with connecting rods 342, one end of the connecting rod 342 away from the connecting frame 341 is fixedly connected with a baffle 343, the side of the baffle 343 is slidably connected to the inner side of the receiving port 35, and the top of the connecting frame 341 is fixedly connected with an ejection assembly 346; when the filter plate 331 is filtering diesel, the connecting frame 341 is also affected by the When the impact force of diesel is applied, the connecting frame 341 drives the ejection assembly 346 through the connecting shaft 344, and moves downward away from the filter plate 331. At the same time, the connecting frame 341 drives the baffle 343 to slide downward inside the receiving port 35 through the connecting rod 342, so that the baffle 343 blocks the receiving port 35. At the same time, when the filtering work is completed, the connecting frame 341 moves upward through the reset stretching work of the first spring 345, so that the connecting frame 341 drives the ejection assembly 346 to eject and clean the mesh of the filter plate 331, so as to avoid that when the filter plate 331 is filtering diesel, larger particles and impurities are blocked in the mesh of the filter plate 331, thereby causing the mesh of the filter plate 331 to be blocked. The ejection assembly 346 includes an ejection rod 3461, the bottom of the ejection rod 3461 is fixedly connected to the top of the connecting frame 341, a notch 3462 is provided on the side of the ejection rod 3461, a slider 3463 is slidably connected to the inner side of the notch 3462, a slide bar 3464 is fixedly connected to the side of the slider 3463, the side of the slide bar 3464 is slidably connected to the inner side of the ejection rod 3461, a ejection block 3465 is fixedly connected to the top of the slide bar 3464, the ejection block 3465 is concentrically arranged with the mesh of the filter plate 331, a second spring 3466 is sleeved on the slide bar 3464, the top of the second spring 3466 is fixedly connected to the bottom of the ejection block 3465, and the bottom of the second spring 3466 is fixedly connected to the top of the ejection rod 3461; when the filtering work is finished, the connecting frame 341 is released through the first spring The spring 345 is retracted and stretched to move upward, and the connecting frame 341 drives the ejection block 3465 through the ejection rod 3461 to eject the particle impurities blocked in the mesh of the filter plate 331. At the same time, when the extrusion force between the ejection block 3465 and the particle impurities blocked in the mesh of the filter plate 331 is greater than the tensile force of the second spring 3466, the slide bar 3464 drives the ejection block 3465 to move downward through the slider 3463. At the same time, the second spring 3466 works as a buffer to avoid excessive extrusion force between the ejection block 3465 and the impurities blocked in the mesh of the filter plate 331, thereby causing excessive extrusion force between the particle impurities and the inner side of the mesh of the filter plate 331, causing friction damage to the inner side of the mesh of the filter plate 331, and further causing the mesh to expand. The filter mechanism 33 includes a filter plate 331, the side of the filter plate 331 is fixedly connected to the inner side of the main body 1, the top of the filter plate 331 is provided with an inclined groove 333, the inner side of the inclined groove 333 is symmetrically provided with a material dropping groove 332, and the material dropping groove 332 is arranged near the receiving port 35; when the filtering work is completed, the connecting frame 341 moves upward through the reset stretching work of the first spring 345, and the ejection component 346 ejects the impurities blocked in the mesh of the filter plate 331, and at the same time, the connecting frame 341 drives the baffle 343 to slide upward on the inner side of the receiving port 35 through the connecting rod 342, so that the ejection component 346 ejects the larger particle impurities blocked in the mesh of the filter plate 331, and at the same time, by setting the top of the filter plate 331 to an arc surface, the surface of the filter plate 331 The surface is high in the middle and low on the side, so that the ejection component 346 can eject the particulate impurities blocked in the mesh of the filter plate 331, and the particulate impurities can slide along the curved surface of the filter plate 331 to enter the inclined groove 333. At the same time, the inner side of the inclined groove 333 is set from high to low, and the closer to the drop groove 332, the lower the slope, so that the particulate impurities entering the inclined groove 333 can slide in the inclined groove 333 to the drop groove 332. At the same time, by turning on the first air suction machine 32, the particulate impurities gathered in the drop groove 332 are collected by the first air suction machine 32, so as to avoid the filter plate 331 blocking the filtered particulate impurities, and still exist around the filter plate 331, so as to accelerate the clogging of the filter plate 331 during the subsequent filtering work; Embodiment 2, use Figure 8-Figure 9 A crude and fine filter integrated diesel filter device of the present invention is described as follows; like Figure 8-Figure 9 The present invention shows a coarse and fine filter integrated diesel filter device, based on the first embodiment; The collecting component 2 includes a collecting shell 21, and the two sides of the inner wall of the collecting shell 21 are fixedly connected with the second air sucker 22, and the side of the collecting shell 21 away from the second air sucker 22 is fixedly connected with the suction mechanism 23, and the end of the suction mechanism 23 away from the collecting shell 21 is fixedly connected to the inner side of the filter shell 41; when the filter shell 41 is discharged, the second air sucker 22 is turned on, and the suction force generated by the second air sucker 22 draws the impurities, moisture and dirt intercepted by the filter element deposited in the filter shell 41 into the collecting shell 21 through the suction mechanism 23, and the dirt is collected to prevent pollution to the environment; The sewage suction mechanism 23 includes a sewage suction pipe 231, one end of which is fixedly connected to the inner side of the collecting housing 21, and the other end of the sewage suction pipe 231 is fixedly connected to the inner side of the filtering housing 41. The end of the sewage suction pipe 231 close to the filtering housing 41 is rotatably connected to a gate valve 232, and the inner side of the other end of the sewage suction pipe 231 is fixedly connected to a check valve 233. The inner side of the sewage suction pipe 231 is fixedly connected to a bracket 1 234, and a guide rod 236 is fixedly connected to the side of the bracket 1 234. The end of the guide rod 236 away from the bracket 1 234 is fixedly connected to a bracket 2 235. The side of the second bracket 235 is fixedly connected to the inner side of the suction pipe 231, and the side of the bracket 234 close to the guide rod 236 is fixedly connected to the third spring 237. The other end of the third spring 237 is fixedly connected to the moving frame 238. The inner side of the moving frame 238 is slidably connected to the side of the guide rod 236, and the two sides of the moving frame 238 are fixedly connected to the scraper 239. When the filter housing 41 is sucked, the impurities, moisture and the dirt intercepted by the filter element are removed by opening the gate valve 232 through the suction force of the second suction machine 22. The dirt is sucked into the collecting housing 21 through the suction pipe 231 and the one-way valve 233. At the same time, the suction force of the second air suction machine 22 causes the moving frame 238 to drive the scraper 239 to move and clean the inner side of the suction pipe 231. At the same time, when the moving frame 238 moves, it squeezes the third spring 237 in a stretched state, thereby preventing a large amount of dirt from being attached to the inner side of the suction pipe 231 when passing through the suction pipe 231. The accumulation of impurities on the inner wall of the suction pipe 231 will gradually reduce the effective inner diameter of the pipe, and the impurities in the suction pipe 231 will gradually reduce the effective inner diameter of the pipe. The attachment to the inner wall will increase the flow resistance of the liquid and reduce its fluidity, thereby prolonging the suction time and reducing the work efficiency. At the same time, when the sewage discharge work is completed, by turning off the second suction machine 22, the mobile frame 238 is driven by the reset of the third spring 237, thereby driving the mobile frame 238 to move, and the inner wall of the sewage suction pipe 231 is cleaned twice, until the mobile frame 238 contacts and collides with the bracket 1 234, and then the scraper 239 shakes off the attached impurities, so as to avoid impurities remaining on the surface of the scraper 239 after the scraper 239 performs the cleaning work; Example 3, using Figure 1-Figure 9 A crude and fine filter integrated diesel filter device of the present invention is described as follows; like Fig.10 It is shown that, based on the first embodiment, a process for coarse and fine filter integrated diesel filtration includes the following steps: S1: Diesel is pumped out of the fuel tank by the oil pump, firstly passes through the feed port 6 and enters the coarse filter component 3, where larger impurities are intercepted on the surface of the coarse filter component 3, and the preliminarily purified diesel flows to the fine filter component 4 through the connecting pipeline; S2: The diesel oil entering the fine filter component 4 passes through high-precision filter paper or synthetic fiber filter material. In this process, tiny impurities are adsorbed and intercepted by the filter paper, and the diesel oil after fine filtration reaches a higher cleanliness standard; S3: Open the material receiving component 2 to discharge the impurities and water deposited in the fine filtering component 4.

[0013] The specific workflow is as follows: During operation, after the diesel is pumped out of the fuel tank by the fuel pump, it first passes through the feed port 6 of the main body 1, and then flows through the coarse filter component 3. During the coarse filtration process, larger particles of impurities are intercepted on the surface of the coarse filter component 3. The preliminarily purified diesel continues to flow to the fine filter component 4. In the fine filter component 4, tiny impurities are adsorbed and blocked by the filter material of the fine filter element. After two-stage filtration, the clean diesel flows out from the discharge pipe 5, enters the fuel injection system of the engine, and is sprayed into the combustion chamber under high pressure for combustion; When the diesel is pumped out of the fuel tank by the fuel pump, it enters the main body 1 through the feed port 6. The fuel pump drives the impact force of the diesel, so that the filter mechanism 33 filters the larger particles in the diesel. At the same time, the clearing mechanism 34 is affected by the impact force of the diesel entering the main body 1, so that the clearing mechanism 34 moves downward. When the filter plate 331 is filtering diesel, and the connecting frame 341 is subjected to the impact force of diesel, the connecting frame 341 drives the ejection assembly 346 through the connecting shaft 344 to separate from the filter plate 331 and move downward. At the same time, the connecting frame 341 drives the baffle 343 to slide downward on the inner side of the receiving port 35 through the connecting rod 342, so that the baffle 343 blocks the receiving port 35. At the same time, when the filtering work is completed, the connecting frame 341 moves upward through the reset stretching work of the first spring 345, so that the connecting frame 341 drives the ejection assembly 346 to eject and clean the mesh of the filter plate 331, thereby preventing larger particle impurities from being blocked in the mesh of the filter plate 331 when the filter plate 331 is filtering diesel, thereby causing the mesh of the filter plate 331 to be blocked. When the filtering work is finished, the connecting frame 341 moves upwards through the reset stretching work of the first spring 345, and the connecting frame 341 drives the ejection block 3465 through the ejection rod 3461 to eject the particle impurities blocked in the mesh of the filter plate 331. At the same time, when the extrusion force between the ejection block 3465 and the particle impurities blocked in the mesh of the filter plate 331 is greater than the stretching force of the second spring 3466, the sliding bar 3464 drives the ejection block 3465 to move downwards through the sliding block 3463. At the same time, the buffering work of the second spring 3466 is used to avoid the extrusion force between the ejection block 3465 and the impurities blocked in the mesh of the filter plate 331 being too large, thereby causing the extrusion force between the particle impurities and the inner side of the mesh of the filter plate 331 to be too large, causing friction damage to the inner side of the mesh of the filter plate 331, and then causing the mesh to expand. When the filtering work is completed, the connecting frame 341 moves upward through the reset stretching work of the first spring 345, and the ejection assembly 346 ejects the impurities blocked in the mesh of the filter plate 331. At the same time, the connecting frame 341 drives the baffle 343 to slide upward on the inner side of the receiving port 35 through the connecting rod 342, so that the ejection assembly 346 can eject the larger particle impurities blocked in the mesh of the filter plate 331. At the same time, by setting the top of the filter plate 331 as an arc surface, the surface of the filter plate 331 is high in the middle and low on the side, so that the ejection assembly 346 can eject the particle impurities blocked in the mesh of the filter plate 331. After exiting, the particle impurities can slide down along the curved surface of the filter plate 331, and thus enter the inclined groove 333. At the same time, the inner side of the inclined groove 333 is arranged from high to low, and the closer the inclined surface is to the material drop groove 332, the lower it is, so that the particle impurities entering the inclined groove 333 can slide in the inclined groove 333 toward the material drop groove 332. At the same time, by turning on the first air suction machine 32, the particle impurities gathered in the material drop groove 332 are collected by the first air suction machine 32, so as to avoid the filter plate 331 blocking the filtered particle impurities, and still exist around the filter plate 331, so as to accelerate the clogging of the filter plate 331 during the subsequent filtering work; After coarse filtration, the diesel oil passes through the mesh plate 44 and enters the filter housing 41, so that the filter paper mechanism 43 can filter the diesel oil after coarse filtration. The filter paper mechanism 43 usually adopts a folded filter paper structure to increase the filtration area, improve the filtration efficiency and reduce the filtration resistance. The filter paper is installed on a special filter element skeleton to ensure that its shape is stable and can withstand a certain pressure. The filtration of the filter material can remove tiny impurities in the diesel oil, such as colloid, tiny metal particles, unburned carbon particles, etc. When the filter housing 41 and the filter paper mechanism 43 are blocked due to excessive impurities, the diesel oil will be burned. When the flow resistance is too large, the bypass valve 45 will automatically open. The opening pressure of the bypass valve 45 is generally set at a value slightly higher than the normal working pressure. This ensures that in the event of a fault, the diesel can still flow to the engine and other equipment through the bypass valve 45 to avoid the engine stopping due to the clogging of the filter device. The check valve 42 can prevent the filter device itself from being damaged due to the backflow of diesel. If the diesel flows back, the impurities that have been filtered out may be brought back to the inside of the filter device, or a reverse pressure shock may be caused to the filter element and other components, affecting the service life and filtering effect of the filter element. When the filter housing 41 is discharged, the second air suction machine 22 is turned on, and the impurities, moisture and dirt intercepted by the filter element deposited in the filter housing 41 are sucked into the collection housing 21 through the suction mechanism 23 by the suction force generated by the second air suction machine 22, so as to collect the dirt and prevent pollution to the environment; When the filter housing 41 is sucked, the gate valve 232 is opened, and the impurities, moisture and dirt intercepted by the filter element deposited in the filter housing 41 are sucked into the collection housing 21 through the suction pipe 231 and the one-way valve 233 by the suction force of the second suction machine 22. At the same time, the suction force of the second suction machine 22 enables the moving frame 238 to drive the scraper 239 to move and clean the inner side of the suction pipe 231. At the same time, when the moving frame 238 moves, it squeezes the third spring 237 in a stretched state, so as to prevent a large amount of dirt from being attached to the inner side of the suction pipe 231 when passing through the suction pipe 231. The accumulation of impurities on the inner wall of the suction pipe 231 will gradually reduce the effective inner diameter of the pipe. The attachment of impurities to the inner wall of the suction pipe 231 will increase the flow resistance of the liquid and reduce its fluidity, thereby extending the suction time and reducing work efficiency. At the same time, when the sewage discharge work is completed, by turning off the second suction machine 22, the movable frame 238 is driven by the reset of the third spring 237, thereby driving the movable frame 238 to move, and the inner wall of the suction pipe 231 is cleaned for the second time until the movable frame 238 contacts and collides with the bracket 234, and then the scraper 239 shakes off the attached impurities to avoid impurities remaining on the surface of the scraper 239 after the cleaning work.

[0014] Obviously, the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field and related fields without creative work should fall within the scope of protection of the present invention. The structures, devices and operating methods not specifically described and explained in the present invention are implemented according to the conventional means in the field unless otherwise specified and limited.

Claims

1. A coarse and fine filter integrated diesel filter device, characterized in that: include: A main body (1), wherein a feed port (6) is fixedly connected to the top of the main body (1), a fine filter component (4) is fixedly connected to the inner side of the main body (1), a discharge pipe (5) is fixedly connected to the bottom of the fine filter component (4), and a material receiving component (2) is fixedly connected to the side of the main body (1); A coarse filter component (3), the coarse filter component (3) being used to filter diesel fuel entering the main body (1), the side surface of the coarse filter component (3) being fixedly connected to the inner side of the main body (1); The fine filter component (4) comprises a filter housing (41), a filter paper mechanism (43) is fixedly connected to the inner side of the filter housing (41), a mesh plate (44) is fixedly connected to the top of the filter housing (41), a bypass valve (45) is fixedly connected to the top of the mesh plate (44), the top of the bypass valve (45) is fixedly connected to the inner side of the feed port (6), the bottom of the filter housing (41) is fixedly connected to the discharge pipe (5), and a check valve (42) is fixedly connected to the inner side of the filter housing (41); The coarse filtering component (3) comprises a collecting box (31) and a filter mechanism (33); the inner side of the collecting box (31) is fixedly connected to the side of the main body (1); both sides of the inner wall of the collecting box (31) are fixedly connected to a first air suction machine (32); the inner side of the collecting box (31) is symmetrically provided with a material receiving port (35); the filter mechanism (33) is arranged below the material feeding port (6); the side of the filter mechanism (33) is fixedly connected to the inner side of the main body (1); and the bottom of the filter mechanism (33) is fixedly connected to a clearing mechanism (34).

2. A crude and fine filter integrated diesel filter device according to claim 1, characterized in that: The filter mechanism (33) comprises a filter plate (331), the side of the filter plate (331) being fixedly connected to the inner side of the main body (1), the top of the filter plate (331) being provided with an inclined groove (333), the inner side of the inclined groove (333) being symmetrically provided with a material drop groove (332), and the material drop groove (332) being arranged close to the material receiving port (35).

3. The coarse and fine filter integrated diesel filter device according to claim 1, characterized in that: The blockage clearing mechanism (34) comprises a connecting frame (341), a connecting shaft (344) being fixedly connected to the top of the connecting frame (341), a first spring (345) being sleeved on the connecting shaft (344), connecting rods (342) being fixedly connected to both sides of the connecting frame (341), a baffle (343) being fixedly connected to one end of the connecting rod (342) away from the connecting frame (341), and an ejection assembly (346) being fixedly connected to the top of the connecting frame (341).

4. A crude and fine filter integrated diesel filter device according to claim 3, characterized in that: The top of the connecting shaft (344) is slidably connected to the inner side of the filter plate (331), the top of the first spring (345) is fixedly connected to the bottom of the filter plate (331), the bottom of the first spring (345) is fixedly connected to the top of the connecting frame (341), and the side of the baffle (343) is slidably connected to the inner side of the receiving port (35).

5. The coarse and fine filter integrated diesel filter device according to claim 3, characterized in that: The ejection assembly (346) comprises an ejection rod (3461), a notch (3462) is provided on the side of the ejection rod (3461), a slider (3463) is slidably connected to the inner side of the notch (3462), a slide bar (3464) is fixedly connected to the side of the slider (3463), an ejection block (3465) is fixedly connected to the top of the slide bar (3464), and a second spring (3466) is sleeved on the slide bar (3464).

6. A crude and fine filter integrated diesel filter device according to claim 5, characterized in that: The bottom of the ejector rod (3461) is fixedly connected to the top of the connecting frame (341), the ejector block (3465) is concentrically arranged with the mesh of the filter plate (331), the top of the second spring (3466) is fixedly connected to the bottom of the ejector block (3465), the bottom of the second spring (3466) is fixedly connected to the top of the ejector rod (3461), and the side of the sliding rod (3464) is slidably connected to the inner side of the ejector rod (3461).

7. The coarse and fine filter integrated diesel filter device according to claim 1, characterized in that: The material collecting component (2) comprises a collecting shell (21), the inner wall of which is fixedly connected to the second air sucker (22) on both sides, a dirt suction mechanism (23) fixedly connected to the side of the collecting shell (21) away from the second air sucker (22), and an end of the dirt suction mechanism (23) away from the collecting shell (21) is fixedly connected to the inner side of the filter shell (41).

8. The coarse and fine filter integrated diesel filter device according to claim 7, characterized in that: The sewage suction mechanism (23) comprises a sewage suction pipe (231), one end of the sewage suction pipe (231) close to the filter housing (41) is rotatably connected to a gate valve (232), the other end of the sewage suction pipe (231) is fixedly connected to the inner side of a check valve (233), the inner side of the sewage suction pipe (231) is fixedly connected to a bracket 1 (234), the side of the bracket 1 (234) is fixedly connected to a guide rod (236), the end of the guide rod (236) away from the bracket 1 (234) is fixedly connected to a bracket 2 (235), the side of the bracket 2 (235) is fixedly connected to the inner side of the sewage suction pipe (231), the side of the bracket 1 (234) close to the guide rod (236) is fixedly connected to a third spring (237), the other end of the third spring (237) is fixedly connected to a movable frame (238), and both sides of the movable frame (238) are fixedly connected to scrapers (239).

9. The coarse and fine filter integrated diesel filter device according to claim 8, characterized in that: One end of the sewage suction pipe (231) is fixedly connected to the inner side of the collection housing (21), the other end of the sewage suction pipe (231) is fixedly connected to the inner side of the filter housing (41), and the inner side of the movable frame (238) is slidably connected to the side of the guide rod (236).

10. A process for coarse and fine filter integrated diesel filtration, the coarse and fine filter integrated diesel filtration device according to claim 1, characterized in that: The following steps are involved: S1: Diesel is pumped out of the fuel tank by the fuel pump and first enters the coarse filter component (3) through the feed port (6). Large impurities are intercepted on the surface of the coarse filter component (3). The preliminarily purified diesel flows to the fine filter component (4) through the connecting pipeline. S2: The diesel oil entering the fine filter component (4) passes through high-precision filter paper or synthetic fiber filter material. In this process, tiny impurities are adsorbed and intercepted by the filter paper. The diesel oil after fine filtration reaches a higher cleanliness standard. S3: Open the material receiving component (2) to discharge the impurities and water deposited in the fine filtering component (4).

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