Low-temperature-resistant diesel oil filter

Abstract

The utility model discloses a low temperature resistant diesel oil filter relates to filter technical field, including device main part, inner layer, fixed pipe and filter layer, device main part is sleeved outside the inner layer, device main part and inner layer are both welded with tank mouth bottom, tank mouth top is in threaded structure, and the fixed pipe is in threaded structure. The tank opening is in threaded connection with the bottom of the sealing cover through threads, two circular hole grooves are formed in the bottom of the sealing cover, diesel oil enters the filtering layer from the outer side of the filtering layer and then enters the fixing pipe through the hole grooves in the outer wall of the fixing pipe, and therefore impurities in the diesel oil are filtered on the surface of the filtering layer; when the diesel oil circulates in the inner layer, water components in the diesel oil can be precipitated at the bottom of the inner layer due to large weight, so that the oil-water separation effect is achieved, excessive impurities attached to the outer wall of the filter layer can fall off and precipitate downwards and then precipitate to the bottom of the inner layer, and the oil-water separation effect is achieved. And water and impurities at the bottom of the inner layer can be discharged and cleaned by opening the plug.

Description

Technical Field

[0001] The utility model relates to the technical field of filters, in particular to a low-temperature resistant diesel filter. Background Art

[0002] The diesel filter removes solid impurities such as iron oxide and dust from the fuel and provides clean fuel without impurities to the engine, thereby protecting the engine system. After searching, the Chinese patent authorization number CN219570228U discloses a low-temperature resistant diesel filter. Although the filter achieves the overall low-temperature resistance effect by setting an insulation layer in the outer shell, and a sealing ring is set at the connection position between the sealing cover and the filter body to ensure the internal insulation and sealing effect. At the same time, a bell mouth is set, so that the overall filtering effect is good and the safety factor is high, but the filter cannot separate the water component in the diesel when it is used. When there is water in the diesel, it is extremely harmful to the diesel engine fuel supply system. Rust and wear may even affect the combustion process of the diesel. At the same time, too much filtered dirt and impurities inside the filter will accumulate and precipitate at the bottom of the filter. If it is not cleaned in time, it will repeatedly adhere to the surface of the filter element, thereby affecting the use of the filter. Utility Model Content

[0003] In view of the deficiencies in the prior art, the utility model provides a low-temperature resistant diesel filter, which solves the problem in the background technology that the prior filter cannot separate the water component in the diesel when in use. The presence of water in the diesel is extremely harmful to the diesel engine fuel supply system. Rust and wear may even affect the combustion process of the diesel. At the same time, too much filtered dirt and impurities inside the filter will accumulate and settle at the bottom of the filter. If they are not cleaned in time, they will repeatedly adhere to the surface of the filter element, thereby affecting the use of the filter.

[0004] To achieve the above objectives, the utility model is implemented through the following technical solutions: a low-temperature resistant diesel filter, including a device body, an inner layer, a fixed tube and a filter layer, the device body is sleeved on the outside of the inner layer, the device body and the inner layer are welded to the bottom of the tank mouth, the top of the tank mouth is a threaded structure, and the tank mouth is threadedly connected to the bottom of the sealing cover through a thread, two circular holes are provided at the bottom of the sealing cover, the two circular holes at the bottom of the sealing cover are respectively connected to the bottom of the oil inlet pipe and the oil outlet pipe, the top of the sealing cover is welded to the bottom of the mounting plate, the mounting plate is an L-shaped structure, four circular holes are provided on one side of the mounting plate, and fixing bolts are inserted into the circular holes, a filter layer is arranged inside the inner layer, the filter layer is sleeved on the outside of the fixed tube, one end of the bottom of the inner layer is connected to the drain hole, and one end of the bottom of the drain hole is threadedly connected to the plug.

[0005] Preferably, the bottom of the inner layer is an arc-shaped slope structure, and there is a gap between the bottom of the inner layer and the bottom of the fixed tube, there is a gap between the inner layer and the device body, and the gap between the device body and the inner layer is filled with thermal insulation cotton. By adding thermal insulation cotton in the interlayer between the device body and the inner layer, the filter housing can achieve thermal insulation effect and can be suitable for use in environments with lower temperatures.

[0006] Preferably, the bottom of the fixed tube is in a closed structure, and the top of the fixed tube is in an open shape. A connector is welded on the top of the fixed tube, and the connector is threadedly connected to the bottom of the sealing cover. The top of the fixed tube is connected to one end of the bottom of the oil outlet pipe, and the outer wall of the top end of the fixed tube is in a threaded structure. Circular holes and grooves are evenly opened on the outer wall of the fixed tube. The fixed tube can be removed from the bottom of the sealing cover by rotating the fixed tube, which is convenient for disassembly, maintenance and cleaning.

[0007] Preferably, a buffer plate is welded to the inner wall of the inner layer, the buffer plate is in a ring-shaped structure, and the inner surface of the buffer plate is sloped. There is a gap between the inner side of the buffer plate and the filter layer. The gap between the buffer plate and the filter layer is beneficial for avoiding affecting the circulation of liquid. At the same time, the sloped structure of the buffer plate can make impurities on the surface slide off.

[0008] Preferably, the filter layer is a filter cloth with filter holes evenly distributed on the surface, and the filter layer is arranged in a ring shape. The surface of the filter layer has a multi-pleated structure, which is beneficial to increase the surface area of ​​the filter layer and thus improve the filtering effect.

[0009] Preferably, two limiting rings are mounted on the outer wall of the filter layer, the two limiting rings are glued to the filter layer, the inner side of the limiting rings is provided with ring-shaped grooves, the inner grooves of the limiting rings are engaged with the folds on the outer wall of the filter layer, and by mounting a limiting block on the outside of the filter layer, the folds on the outer wall surface of the filter layer can be evenly distributed, thereby preventing the folds from deforming and sticking to each other and affecting the filtration.

[0010] The utility model provides a low temperature resistant diesel filter, which has the following beneficial effects:

[0011] (1) A low temperature resistant diesel filter. When the filter is in use, diesel enters the inner layer through the oil inlet, and then enters the filter layer from the outside, and then enters the fixed tube through the holes on the outer wall of the fixed tube, thereby filtering impurities in the diesel on the surface of the filter layer. When the diesel circulates in the inner layer, the water component in the diesel will settle at the bottom of the inner layer due to its large weight, thereby achieving the effect of oil-water separation. The upper layer inside the fixed tube is the diesel after water and impurities are removed. The diesel after water and impurities are removed is discharged through the oil outlet pipe, which is beneficial to protecting the engine system. When there are too many impurities attached to the outer wall of the filter layer, they will fall off and settle downward, and then settle to the bottom of the inner layer. By opening the plug, the water and impurities at the bottom of the inner layer can be discharged and cleaned, thereby avoiding affecting the use of the filter. At the same time, the presence of the buffer plate is beneficial to avoid the diesel liquid discharged from the oil inlet directly impacting the bottom of the inner layer, resulting in turbulence at the bottom of the inner layer, so that the precipitated impurities and water at the bottom of the inner layer float up and affect oil-water separation and filtration.

[0012] (2) This low-temperature resistant diesel filter provides a gap between the bottom of the filter layer and the bottom of the inner layer so that impurities deposited at the bottom of the inner layer can avoid contact with the filter layer and blockage of the filter layer surface. At the same time, by installing a limit block outside the filter layer, the folds on the outer wall surface of the filter layer can be evenly distributed to prevent the folds from deforming and sticking to each other and affecting filtration.

[0013] This solves the problem that the existing filter cannot separate the water component in diesel when in use. When there is water in diesel, it is extremely harmful to the diesel engine fuel supply system. Rust and wear may even affect the combustion process of diesel. At the same time, too much filtered dirt and impurities inside the filter will accumulate and settle at the bottom of the filter. If they are not cleaned in time, they will repeatedly adhere to the surface of the filter element, thus affecting the use of the filter. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 It is a schematic diagram of the overall structure of the utility model;

[0015] Figure 2 This is a schematic diagram of the internal structure of the utility model;

[0016] Figure 3 This is a schematic diagram of the filter layer structure of the utility model;

[0017] Figure 4 This is a schematic diagram of the fixed pipe structure of the utility model;

[0018] Figure 5 This is a schematic diagram of the structure of the limiting ring of the utility model.

[0019] In the figure, 1. device body; 2. inner layer; 3. sealing cover; 4. oil inlet pipe; 5. oil outlet pipe; 6. mounting plate; 7. fixing bolts; 8. fixing pipe; 9. filter layer; 10. connector; 11. limiting ring; 12. buffer plate; 13. plug; 14. drain hole; 15. tank mouth. DETAILED DESCRIPTION

[0020] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0021] Example 1: Please refer to Figure 1-5 The utility model embodiment provides a technical solution: a low-temperature resistant diesel filter, including a device body 1, an inner layer 2, a fixed tube 8 and a filter layer 9, the device body 1 is sleeved on the outside of the inner layer 2, the device body 1 and the inner layer 2 are both welded to the bottom of the tank mouth 15, the top of the tank mouth 15 is a threaded structure, and the tank mouth 15 is threadedly connected to the bottom of the sealing cover 3 through a thread, the bottom of the sealing cover 3 is provided with two circular holes, the two circular holes at the bottom of the sealing cover 3 are respectively connected to the bottom of the oil inlet pipe 4 and the oil outlet pipe 5, the top of the sealing cover 3 is welded to the bottom of the mounting plate 6, the mounting plate 6 is an L-shaped structure, four circular holes are provided on one side of the mounting plate 6, and fixing bolts 7 are inserted into the circular holes, the filter layer 9 is arranged inside the inner layer 2, the filter layer 9 is sleeved on the outside of the fixed tube 8, one end of the bottom of the inner layer 2 is connected to the drain hole 14, and one end of the bottom of the drain hole 14 is threadedly connected to the plug 13, the bottom of the fixed tube 8 is a closed structure, and the top of the fixed tube 8 is open, and a connector 10 is welded to the top of the fixed tube 8, and the connector 10 is connected to the sealing The bottom of the cover 3 is threadedly connected, and the top of the fixed pipe 8 is connected to one end of the bottom of the oil outlet pipe 5. A buffer plate 12 is welded on the inner wall of the inner layer 2. The buffer plate 12 is annular in structure, and the inner surface of the buffer plate 12 is sloped. There is a gap between the inner side of the buffer plate 12 and the filter layer 9. When the diesel is circulated inside the inner layer 2, the water component in the diesel will settle at the bottom of the inner layer 2 due to its large weight, thereby achieving the effect of oil-water separation. The upper layer inside the fixed pipe is the diesel after water and impurities are removed. The diesel after water and impurities are removed is discharged through the oil outlet pipe 5, which is beneficial to protecting the engine system. When there are too many impurities attached to the outer wall of the filter layer 9, they will fall off and settle downward, and then settle to the bottom of the inner layer 2. By opening the plug 13, the water and impurities at the bottom of the inner layer 2 can be discharged for cleaning, so as to avoid affecting the use of the filter. At the same time, the existence of the buffer plate 12 is beneficial to avoid the diesel liquid discharged from the oil inlet directly impacting the bottom of the inner layer 2, resulting in turbulence at the bottom of the inner layer 2, so that the precipitated impurities and water at the bottom of the inner layer 2 float and affect oil-water separation and filtration.

[0022] Embodiment 2: The bottom of the inner layer 2 is an arc-shaped slope structure, and there is a gap between the bottom of the inner layer 2 and the bottom of the fixed tube 8, there is a gap between the inner layer 2 and the device body 1, and the gap between the device body 1 and the inner layer 2 is filled with thermal insulation cotton. By adding thermal insulation cotton in the interlayer between the device body 1 and the inner layer 2, the filter housing can achieve thermal insulation effect and can be suitable for use in environments with lower temperatures.

[0023] Embodiment 3: Two limiting rings 11 are mounted on the outer wall of the filter layer 9, which are glued to the filter layer 9. The inner side of the limiting rings 11 is provided with ring-shaped grooves, and the inner grooves of the limiting rings 11 are engaged with the folds on the outer wall of the filter layer 9. By setting a gap between the bottom of the filter layer 9 and the bottom of the inner layer 2, impurities precipitated at the bottom of the inner layer 2 can avoid contact with the filter layer 9, resulting in clogging of the surface of the filter layer 9. At the same time, by mounting a limiting block on the outside of the filter layer 9, the folds on the outer wall of the filter layer 9 can be evenly distributed to avoid deformation of the folds and sticking to each other to affect filtration.

[0024] Working principle: When the filter is in use, diesel enters the inner layer 2 through the oil inlet, and the diesel enters the filter layer 9 from the outside, and then enters the fixed tube 8 through the holes on the outer wall of the fixed tube 8, thereby filtering the impurities in the diesel on the surface of the filter layer 9. When the diesel circulates inside the inner layer 2, the water component in the diesel will settle at the bottom of the inner layer 2 due to its large weight, thereby achieving the effect of oil-water separation. The upper layer inside the fixed tube is the diesel after water and impurities are removed. The diesel after water and impurities are removed is discharged through the oil outlet pipe 5, which is beneficial to protect the engine system. When there are too many impurities attached to the outer wall of the filter layer 9, they will fall off and settle downward, and then settle to the bottom of the inner layer 2. By opening the plug 13, the water and impurities at the bottom of the inner layer 2 can be discharged for cleaning, thereby avoiding affecting the use of the filter. At the same time, the presence of the buffer plate 12 helps to avoid the diesel liquid discharged from the oil inlet directly impacting the bottom of the inner layer 2, causing turbulence at the bottom of the inner layer 2, causing the precipitated impurities and water at the bottom of the inner layer 2 to float and affect oil-water separation and filtration. By setting a gap between the bottom of the filter layer 9 and the bottom of the inner layer 2, the impurities precipitated at the bottom of the inner layer 2 can avoid contact with the filter layer 9, thereby causing the surface of the filter layer 9 to be blocked. At the same time, by installing a limit block on the outside of the filter layer 9, the wrinkles on the outer wall surface of the filter layer 9 can be evenly distributed, thereby avoiding the wrinkles from deforming and fitting together and affecting filtration.

[0025] The components of the utility model, 1. device body; 2. inner layer; 3. sealing cover; 4. oil inlet pipe; 5. oil outlet pipe; 6. mounting plate; 7. fixing bolt; 8. fixing pipe; 9. filter layer; 10. connector; 11. limit ring; 12. buffer plate; 13. plug; 14. drain hole; 15. tank mouth, are all common standard parts or components known to those skilled in the art, and their structures and principles can be known to those skilled in the art through technical manuals or conventional experimental methods.

[0026] The above shows and describes the basic principles and main features of the utility model and the advantages of the utility model. For those skilled in the art, it is obvious that the utility model is not limited to the details of the above exemplary embodiments, and can be implemented in other specific forms without departing from the spirit or basic features of the utility model. Therefore, no matter from which point of view, the embodiments should be regarded as exemplary and non-restrictive. The scope of the utility model is defined by the attached claims rather than the above description, and it is intended to include all changes within the meaning and scope of the equivalent elements of the claims. Any figure mark in the claims should not be regarded as limiting the claims involved.

[0027] In addition, it should be understood that although the present specification is described according to implementation modes, not every implementation mode contains only one independent technical solution. This description of the specification is only for the sake of clarity. Those skilled in the art should regard the specification as a whole. The technical solutions in each embodiment may also be appropriately combined to form other implementation modes that can be understood by those skilled in the art.

Claims

1. A low temperature resistant diesel filter, characterized in that: The invention comprises a device body (1), an inner layer (2), a fixed tube (8) and a filter layer (9), wherein the device body (1) is sleeved on the outside of the inner layer (2), the device body (1) and the inner layer (2) are both welded to the bottom of a tank mouth (15), the top of the tank mouth (15) is a threaded structure, and the tank mouth (15) is threadedly connected to the bottom of a sealing cover (3) through a thread, and the bottom of the sealing cover (3) is provided with two circular holes, and the two circular holes at the bottom of the sealing cover (3) are respectively connected to the oil inlet pipe (4) and the oil outlet pipe (5). The bottom of the tube (5) is connected, the top of the sealing cover (3) is welded to the bottom of the mounting plate (6), the mounting plate (6) is in an L-shaped structure, one side of the mounting plate (6) is provided with four circular holes, and the circular holes are inserted with fixing bolts (7), the inner layer (2) is provided with a filter layer (9), the filter layer (9) is sleeved on the outside of the fixing tube (8), one end of the bottom of the inner layer (2) is connected to the drainage hole (14), and one end of the bottom of the drainage hole (14) is threadedly connected to the plug (13).

2. A low temperature resistant diesel filter according to claim 1, characterized in that: The bottom of the inner layer (2) is in the form of an arc-shaped sloped structure, and there is a gap between the bottom of the inner layer (2) and the bottom of the fixed tube (8), there is a gap between the inner layer (2) and the device body (1), and the gap between the device body (1) and the inner layer (2) is filled with thermal insulation cotton.

3. The low temperature resistant diesel filter according to claim 1, characterized in that: The bottom of the fixed pipe (8) is in a closed structure, and the top of the fixed pipe (8) is in an open shape. A connector (10) is welded to the top of the fixed pipe (8), and the connector (10) is threadedly connected to the bottom of the sealing cover (3). The top of the fixed pipe (8) is connected to one end of the bottom of the oil outlet pipe (5), and the outer wall of one end of the top of the fixed pipe (8) is in a threaded structure. The outer wall of the fixed pipe (8) is evenly provided with circular holes.

4. The low temperature resistant diesel filter according to claim 1, characterized in that: A buffer plate (12) is welded to the inner wall of the inner layer (2); the buffer plate (12) is in a ring-shaped structure, and the inner surface of the buffer plate (12) is in a slope shape; there is a gap between the inner side of the buffer plate (12) and the filter layer (9).

5. The low temperature resistant diesel filter according to claim 1, characterized in that: The filter layer (9) is a filter cloth, and filter holes are evenly distributed on the surface. The filter layer (9) is arranged in a ring shape, and the surface of the filter layer (9) has a multi-fold structure.

6. The low temperature resistant diesel filter according to claim 1, characterized in that: The outer wall of the filter layer (9) is sleeved with two limiting rings (11), the two limiting rings (11) are glued to the filter layer (9), the inner side of the limiting ring (11) is provided with grooves distributed in a ring shape, and the inner grooves of the limiting ring (11) are engaged with the folds of the outer wall of the filter layer (9).

Images