Heating device for diesel filter

Abstract

The invention discloses a heating device for a diesel filter, and belongs to the technical field of filters. A heating device for a diesel oil filter comprises a diesel oil filter box, and a plurality of filter elements and an oil inlet pipeline communicated with the filter elements and used for conveying diesel oil are arranged in the diesel oil filter box. A filtering unit is arranged in the filter element and comprises a filter cartridge positioned in the filter element, filtering holes positioned in the filter cartridge and a bottom plate which is positioned below the filter cartridge and is detachably connected with the filter element; a heating outer pipe is arranged in the filter element, a gap is formed between the heating outer pipe and the outer wall of the filter cartridge, and a heating inner pipe is inserted into the heating outer pipe. According to the heating device for the diesel oil filter, the heating inner pipe is arranged on the outer side of the filter cartridge, the outer wall of the heating inner pipe is attached to the heating outer pipe, the heating outer pipe surrounds the outer side of the filter cartridge, and diesel oil is heated, so that the diesel oil gradually passes through the filter cartridge, and the conveying capacity of the filtered diesel oil is guaranteed.

Description

Technical Field

[0001] This invention belongs to the field of filter technology, specifically relating to a heating device for a diesel filter. Background Technology

[0002] Diesel fuel is a light petroleum product, a complex mixture of hydrocarbons, and is used as fuel for diesel engines. It is mainly blended from diesel fractions produced by processes such as crude oil distillation, catalytic cracking, thermal cracking, hydrocracking, and petroleum coking. It can also be produced from shale oil processing and coal liquefaction. It is divided into two main categories: light diesel and heavy diesel.

[0003] Diesel fuel filters are the core filtration components of diesel engine fuel systems. They remove solid particles, gum, and moisture from diesel fuel through physical interception, preventing impurities from entering precision components such as high-pressure fuel pumps and fuel injectors. Their structure includes filter elements made of filter paper, felt, or polymer materials. Some models integrate moisture and temperature sensors for real-time monitoring of fuel status.

[0004] At low temperatures, diesel fuel loses its fluidity, especially heavy diesel. The viscous diesel fuel at low temperatures can clog the filter pores in the filter element, preventing proper filtration and thus hindering the supply of diesel fuel. Equipment using diesel fuel will not start properly. Although diesel fuel adapted to low-temperature environments can be used, it is more expensive. If there is a significant drop in temperature in a region, the diesel fuel cannot be replaced in time, and the diesel fuel will still become viscous and clog the filter element. Therefore, this application proposes a heating device for diesel fuel filters. Summary of the Invention

[0005] The purpose of this invention is to provide a heating device for a diesel filter to solve the problem mentioned in the background art that diesel fuel, which becomes viscous at low temperatures, can clog the filter pores in the filter element, resulting in the inability to filter diesel fuel properly and consequently, the inability to supply diesel fuel normally.

[0006] To achieve the above objectives, the present invention provides the following technical solution: a heating device for a diesel filter, comprising a diesel filter box, wherein a plurality of filter elements are disposed in the diesel filter box and an oil inlet pipe connected to the filter elements for conveying diesel fuel. The filter element is provided with a filtration unit, which includes a filter cylinder located inside the filter element, filter holes located on the filter cylinder, and a base plate located below the filter cylinder and detachably connected to the filter element. The filter element is provided with a heating outer tube, and there is a gap between the heating outer tube and the outer wall of the filter cylinder. A heating inner tube is inserted into the heating outer tube, and the heating inner tube is arranged around the filter cylinder and heat-conducting oil flows inside it. The diesel filter box is equipped with a liquid delivery pipe connected to the heating inner pipe, a liquid delivery tank connected to the liquid delivery pipe, a heating unit for heating the heat transfer oil, and a power pump for providing thrust for the flow of the heat transfer oil.

[0007] Preferably, the bottom of the diesel filter box is provided with several caster assemblies.

[0008] Preferably, the bottom of the diesel filter box is provided with two parallel I-beams, and four sets of caster assemblies are provided, with the four sets of caster assemblies distributed on the two I-beams.

[0009] Preferably, the diesel filter box has two sliding covers on the top, and the diesel filter box has a sliding groove that cooperates with the sliding covers. The oil inlet pipe passes through the sliding cover, and the sliding cover has a guide hole at the position corresponding to the sliding groove. The oil inlet pipe and the guide hole are slidably engaged.

[0010] Preferably, the diesel filter box is provided with a sealing cover on the top, and an oil supply pipe is inserted into the sealing cover, which is connected to the oil inlet pipe.

[0011] Preferably, the top of the filter cartridge is provided with a sealing groove, and a sealing ring is provided in the sealing groove. When the filter cartridge is inserted into the filter element, the sealing ring abuts against the filter element.

[0012] Preferably, the base plate is provided with a plurality of through holes.

[0013] Preferably, a plurality of conduits are inserted into the through hole, and the conduits cooperate with the filter holes in the filter cartridge.

[0014] Preferably, the diesel filter box is equipped with an interceptor plate, the filter element is located above the interceptor plate, and the storage chamber is located below the filter element.

[0015] Preferably, the diesel filter box is provided with an oil drain pipe, which is connected to the storage chamber, and the oil drain pipe is provided with a valve for controlling its opening and closing.

[0016] Beneficial effects: I. The present invention provides a heating device for a diesel filter. Diesel fuel enters multiple filter elements through an oil inlet pipe. The multiple filter elements simultaneously filter the diesel fuel entering them. The filtered diesel fuel enters a storage chamber and is discharged through a drain pipe. Multiple filter elements are installed at the oil inlet pipe, and the multiple filter elements simultaneously filter the diesel fuel, thereby accelerating the diesel fuel filtration efficiency and ensuring that the filtered diesel fuel can be supplied quickly.

[0017] II. The present invention provides a heating device for a diesel filter, which involves setting a heating inner tube on the outside of the filter cartridge, with the outer wall of the heating inner tube fitting against the heating outer tube, and the heating outer tube surrounding the outside of the filter cartridge. Diesel fuel passing through the filter holes enters the gap between the heating outer tube and the filter cartridge. The heat-conducting oil flowing in the heating inner tube provides heat. The heat is transferred through the heating outer tube, the diesel fuel between the filter cartridge and the heating outer tube to the diesel fuel located inside the filter cartridge. The heat is first transferred to the outer wall of the filter cartridge, that is, the diesel fuel temperature at the position where it fits against the outer wall of the filter cartridge increases first. After the temperature of this part of the diesel fuel increases, its fluidity increases, and it can continue to flow through the filter holes. Subsequently, the heat continues to be transferred, increasing the fluidity of the diesel fuel in the center of the filter cartridge, thereby allowing the diesel fuel to gradually pass through the filter cartridge, so that the diesel fuel can still pass through the filter normally in a low-temperature environment. Attached Figure Description

[0018] Figure 1 This is a schematic diagram of the heating device for the diesel filter in this invention; Figure 2 This is one of the internal structural schematic diagrams of the heating device for the diesel filter of the present invention; Figure 3 This is a second schematic diagram of the internal structure of the heating device for the diesel filter in this invention; Figure 4 This is a schematic diagram of the structure of the heating device for the diesel filter in this invention after the sealing cover is removed; Figure 5 This is a schematic diagram of the structure of the diesel filter heating device after removing the sealing cover and sliding cover in this invention; Figure 6 This is a schematic diagram of the filter element in this invention; Figure 7 This is a schematic diagram of the filtration unit in this invention.

[0019] Explanation of reference numerals in the attached figures: 1. Diesel filter box; 2. Caster assembly; 3. Filter element; 4. Oil inlet pipe; 5. Sliding cover; 6. Sealing cover; 7. Oil supply pipe; 8. Filter unit; 801. Filter cartridge; 802. Base plate; 803. Guide tube; 804. Sealing ring; 9. Heating outer tube; 10. Heating inner tube; 11. Infusion pipeline; 12. Infusion tank; 13. Interceptor plate; 14. Storage chamber; 15. Oil drain pipe. Detailed Implementation

[0020] The specific embodiments of the present invention will be described in detail below, but it should be understood that the scope of protection of the present invention is not limited to the specific embodiments.

[0021] Example 1

[0022] like Figures 1-7As shown in the figure, a heating device for a diesel filter provided in an embodiment of the present invention includes a diesel filter box 1, a plurality of filter elements 3 are provided in the diesel filter box 1, and an oil inlet pipe 4 connected to the filter elements 3 for conveying diesel. The filter element 3 is provided with a filtration unit 8, which includes a filter cartridge 801 located inside the filter element 3, filter holes located on the filter cartridge 801, and a base plate 802 located below the filter cartridge 801 and detachably connected to the filter element 3. A heating outer tube 9 is provided inside the filter element 3. There is a gap between the heating outer tube 9 and the outer wall of the filter cartridge 801. A heating inner tube 10 is inserted into the heating outer tube 9. The heating inner tube 10 is arranged around the filter cartridge 801 and heat transfer oil flows inside it. The diesel filter box 1 is equipped with a liquid delivery pipe 11 connected to the heating inner pipe 10, a liquid delivery tank 12 connected to the liquid delivery pipe 11, a heating unit for heating the heat transfer oil, and a power pump for providing thrust for the flow of the heat transfer oil.

[0023] Example 2

[0024] Based on Embodiment 1, a sealing groove is provided at the top of the filter cartridge 801, and a sealing ring 804 is provided in the sealing groove. When the filter cartridge 801 is inserted into the filter element 3, the sealing ring 804 abuts against the filter element 3. Several through holes are provided at the bottom plate 802, and several guide tubes 803 are inserted into the through holes. The guide tubes 803 cooperate with the filter holes in the filter cartridge 801. After diesel fuel enters the filter element 3, it enters the filter cartridge 801 under the action of gravity and other forces. Some diesel fuel is discharged from the filter holes on the side wall of the filter cartridge 801 and through the through holes on the bottom plate 802 that communicate with the filter element 3. The remaining diesel fuel is discharged from the filter holes at the bottom of the filter cartridge 801 and through the through holes on the bottom plate 802 that connect with the filter holes at the bottom of the filter cartridge 801. In this way, the diesel fuel is filtered through the filter holes and the filtered diesel fuel is discharged from the filter element 3.

[0025] The diesel filter box 1 is equipped with an interceptor plate 13, the filter element 3 is located above the interceptor plate 13, the storage chamber 14 is located below the filter element 3, the diesel filter box 1 is equipped with an oil drain pipe 15, the oil drain pipe 15 is connected to the storage chamber 14, and the oil drain pipe 15 is equipped with a valve for controlling the opening and closing.

[0026] Example 3

[0027] like Figures 1-7 As shown in the figure, a heating device for a diesel filter provided in this embodiment of the invention includes a diesel filter box 1. The bottom of the diesel filter box 1 is provided with a plurality of caster assemblies 2. Specifically, the bottom of the diesel filter box 1 is provided with two parallel I-beams, and four sets of caster assemblies 2 are provided, with the four sets of caster assemblies 2 distributed on the two I-beams.

[0028] Specifically, the diesel filter box 1 is equipped with several filter elements 3 and an oil inlet pipe 4 connected to the filter elements 3 for conveying diesel fuel.

[0029] Diesel fuel enters multiple filter elements 3 through the inlet pipe 4. The multiple filter elements 3 simultaneously filter the diesel fuel entering them. The filtered diesel fuel enters the storage chamber 14 and is discharged through the drain pipe 15. Multiple filter elements 3 are installed at the inlet pipe 4. The multiple filter elements 3 simultaneously filter the diesel fuel, which speeds up the diesel fuel filtration efficiency and ensures that the filtered diesel fuel can be supplied quickly.

[0030] Specifically, the diesel filter box 1 has two sliding covers 5 on the top, and the diesel filter box 1 has a sliding groove that cooperates with the sliding cover 5. The oil inlet pipe 4 passes through the sliding cover 5, and the sliding cover 5 has a guide hole at the position corresponding to the sliding groove. The oil inlet pipe 4 is slidably engaged with the guide hole.

[0031] In order to seal the diesel filter box 1, a sealing cover 6 is provided on the top of the diesel filter box 1. An oil supply pipe 7 is inserted into the sealing cover 6. The oil supply pipe 7 is connected to the oil inlet pipe 4. The oil supply pipe 7 is a metal flexible hose and is connected to the oil inlet pipe 4. Diesel fuel enters the filter element 3 through the oil supply pipe 7 and the oil inlet pipe 4.

[0032] For details, please refer to Figure 5 , Figure 6 The filter element 3 is provided with a filter unit 8 for filtering diesel fuel. The filter unit 8 includes a filter cartridge 801 located inside the filter element 3, filter holes located on the filter cartridge 801, and a base plate 802 located below the filter cartridge 801 and detachably connected to the filter element 3. More specifically, the top of the filter cartridge 801 is provided with a sealing groove, and a sealing ring 804 is provided in the sealing groove. When the filter cartridge 801 is inserted into the filter element 3, the sealing ring 804 abuts against the filter element 3.

[0033] It should be noted that the base plate 802 has several through holes, into which several guide tubes 803 are inserted. The guide tubes 803 cooperate with the filter holes in the filter cartridge 801. After diesel fuel enters the filter element 3, it enters the filter cartridge 801 under the action of gravity and other forces. Some diesel fuel is discharged from the filter holes on the side wall of the filter cartridge 801 and through the through holes on the base plate 802 that communicate with the filter element 3. The remaining diesel fuel is discharged from the filter holes at the bottom of the filter cartridge 801 and through the through holes on the base plate 802 that connect with the filter holes at the bottom of the filter cartridge 801. In this way, the diesel fuel is filtered through the filter holes and the filtered diesel fuel is discharged from the filter element 3.

[0034] When diesel fuel is discharged, it can be discharged from the filter holes distributed on the side wall and bottom of the filter cartridge 801. The filter holes are widely distributed, which can increase the speed of diesel fuel filtration.

[0035] At low temperatures, diesel fuel loses its fluidity, especially heavy diesel. The viscous diesel fuel at low temperatures can clog the filter pores in filter element 3, preventing proper filtration and thus hindering the supply of diesel fuel. Equipment using diesel fuel will not start properly. Although diesel fuel suitable for low-temperature environments is available, it is expensive. If a significant temperature drop occurs in a region and the diesel fuel cannot be replaced, the diesel fuel will still become viscous and clog filter element 3. Therefore, a heating outer tube 9 is installed inside filter element 3. There is a gap between the heating outer tube 9 and the outer wall of filter cylinder 801. This gap is used for the flow of diesel fuel discharged through the filter pores on the side wall of filter cylinder 801. A spirally distributed heating inner tube 10 is inserted into the heating outer tube 9 and surrounds filter cylinder 801. Heat transfer oil flows inside the heating inner tube 10. The heat transfer oil can be from the MTLT series (such as MTLT-65, MTLT-75, MTLT-90, etc.): it uses ultra-low pour point, high-stability synthetic materials and has good low-temperature fluidity.

[0036] By setting a heating inner tube 10 on the outside of the filter cartridge 801, with the outer wall of the heating inner tube 10 in contact with the heating outer tube 9, and the heating outer tube 9 surrounding the outside of the filter cartridge 801, diesel fuel passing through the filter holes will enter the gap between the heating outer tube 9 and the filter cartridge 801. The heat-conducting oil flowing in the heating inner tube 10 can provide heat. The heat is transferred to the diesel fuel located inside the filter cartridge 801 via the heating outer tube 9, the diesel fuel between the filter cartridge 801 and the heating outer tube 9 (or the gas between the filter cartridge 801 and the heating outer tube 9), and the heat is first transferred to the outer wall of the filter cartridge 801, that is, the diesel fuel temperature at the position in contact with the outer wall of the filter cartridge 801 is raised first. After the temperature of this part of the diesel fuel is raised, the fluidity is improved, and it can continue to flow through the filter holes. Subsequently, the heat continues to be transferred, which improves the fluidity of the diesel fuel in the center of the filter cartridge 801, thereby allowing the diesel fuel to gradually pass through the filter cartridge 801, ensuring the delivery capacity of the filtered diesel fuel.

[0037] Heating with heat transfer oil results in a more gradual temperature increase for diesel fuel, preventing excessive temperature differences across different parts of the fuel and avoiding localized overheating. This method of temperature increase is relatively safe.

[0038] Specifically, the diesel filter box 1 is equipped with a liquid delivery pipe 11 connected to the heating inner pipe 10, a liquid delivery tank 12 connected to the liquid delivery pipe 11, a heating unit installed in the liquid delivery tank 12, and a power pump connected to the liquid delivery pipe 11 to provide thrust for the flow of heat transfer oil.

[0039] It should be noted that the diesel filter box 1 is equipped with an interceptor plate 13, the filter element 3 is located above the interceptor plate 13, the storage chamber 14 is located below the filter element 3, and the diesel filter box 1 is equipped with an oil drain pipe 15, which is connected to the storage chamber 14. A valve for controlling the opening and closing of the oil drain pipe 15 is provided at the oil drain pipe 15.

[0040] In summary, this invention provides a heating device for a diesel filter. Diesel fuel enters multiple filter elements 3 through an inlet pipe 4. The multiple filter elements 3 simultaneously filter the diesel fuel entering them. The filtered diesel fuel enters a storage chamber 14 and is discharged through a drain pipe 15. The multiple filter elements 3 installed at the inlet pipe 4 and the multiple filter elements 3 simultaneously filter the diesel fuel accelerate the diesel fuel filtration efficiency and ensure that the filtered diesel fuel can be supplied quickly.

[0041] By setting a heating inner tube 10 on the outside of the filter cartridge 801, with the outer wall of the heating inner tube 10 in contact with the heating outer tube 9, and the heating outer tube 9 surrounding the outside of the filter cartridge 801, diesel fuel passing through the filter holes will enter the gap between the heating outer tube 9 and the filter cartridge 801. The heat-conducting oil flowing in the heating inner tube 10 can provide heat. The heat is transferred to the diesel fuel located inside the filter cartridge 801 via the heating outer tube 9, the diesel fuel between the filter cartridge 801 and the heating outer tube 9 (or the gas between the filter cartridge 801 and the heating outer tube 9), and the heat is first transferred to the outer wall of the filter cartridge 801, that is, the diesel fuel temperature at the position in contact with the outer wall of the filter cartridge 801 is raised first. After the temperature of this part of the diesel fuel is raised, the fluidity is improved, and it can continue to flow through the filter holes. Subsequently, the heat continues to be transferred, which improves the fluidity of the diesel fuel in the center of the filter cartridge 801, thereby allowing the diesel fuel to gradually pass through the filter cartridge 801, ensuring the delivery capacity of the filtered diesel fuel.

[0042] The above-disclosed embodiments are merely a few specific examples of the present invention. However, the embodiments of the present invention are not limited thereto, and any variations that can be conceived by those skilled in the art should fall within the protection scope of the present invention.

Claims

1. A heating device for a diesel filter, comprising a diesel filter box (1), characterized in that, The diesel filter box (1) is equipped with several filter elements (3) and an oil inlet pipe (4) connected to the filter elements (3) for conveying diesel. The filter element (3) is provided with a filtration unit (8), which includes a filter cartridge (801) located inside the filter element (3), a filter hole located on the filter cartridge (801), and a base plate (802) located below the filter cartridge (801) and detachably connected to the filter element (3). The filter element (3) is provided with a heating outer tube (9), and there is a gap between the heating outer tube (9) and the outer wall of the filter cylinder (801). A heating inner tube (10) is inserted into the heating outer tube (9), and the heating inner tube (10) is arranged around the filter cylinder (801) and heat transfer oil flows inside it. The diesel filter box (1) is equipped with a liquid delivery pipe (11) connected to the heating inner pipe (10), a liquid delivery tank (12) connected to the liquid delivery pipe (11), a heating unit for heating the heat transfer oil, and a power pump for providing thrust for the flow of the heat transfer oil.

2. The heating device for a diesel filter as described in claim 1, characterized in that, The bottom of the diesel filter box (1) is equipped with several caster assemblies (2).

3. The heating device for a diesel filter as described in claim 2, characterized in that, The bottom of the diesel filter box (1) is provided with two parallel I-beams, and four sets of caster assemblies (2) are provided, with the four sets of caster assemblies (2) distributed on the two I-beams.

4. The heating device for a diesel filter as described in claim 1, characterized in that, The diesel filter box (1) is provided with two sliding covers (5) on the top. The diesel filter box (1) is provided with a sliding groove that cooperates with the sliding cover (5). The oil inlet pipe (4) passes through the sliding cover (5), and the sliding cover (5) is provided with a guide hole at the position corresponding to the sliding groove. The oil inlet pipe (4) is slidably engaged with the guide hole.

5. A heating device for a diesel filter as described in claim 4, characterized in that, The diesel filter box (1) is equipped with a sealing cover (6) on the top, and an oil supply pipe (7) is inserted into the sealing cover (6). The oil supply pipe (7) is connected to the oil inlet pipe (4).

6. The heating device for a diesel filter as described in claim 1, characterized in that, The top of the filter cartridge (801) is provided with a sealing groove, and a sealing ring (804) is provided in the sealing groove. When the filter cartridge (801) is inserted into the filter element (3), the sealing ring (804) abuts against the filter element (3).

7. A heating device for a diesel filter as described in claim 6, characterized in that, The base plate (802) has several through holes.

8. A heating device for a diesel filter as described in claim 7, characterized in that, Several guide tubes (803) are inserted into the through hole, and the guide tubes (803) cooperate with the filter holes in the filter cartridge (801).

9. A heating device for a diesel filter as described in claim 1, characterized in that, The diesel filter box (1) is equipped with an interceptor plate (13), the filter element (3) is located above the interceptor plate (13), and the storage chamber (14) is located below the filter element (3).

10. A heating device for a diesel filter as described in claim 9, characterized in that, The diesel filter box (1) is provided with an oil drain pipe (15), which is connected to the storage chamber (14). A valve for controlling the opening and closing of the oil drain pipe (15) is provided at the oil drain pipe (15).

Images