CN211422810U - High-efficient fuel prefilter water separation structure - Google Patents
High-efficient fuel prefilter water separation structure Download PDFInfo
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- CN211422810U CN211422810U CN201922366480.4U CN201922366480U CN211422810U CN 211422810 U CN211422810 U CN 211422810U CN 201922366480 U CN201922366480 U CN 201922366480U CN 211422810 U CN211422810 U CN 211422810U
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- end cover
- prefilter
- oil
- water
- separation structure
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- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 title claims abstract description 78
- 238000011045 prefiltration Methods 0.000 title claims abstract description 53
- 239000000446 fuel Substances 0.000 title claims abstract description 23
- 238000000926 separation method Methods 0.000 title claims abstract description 20
- 239000003921 oil Substances 0.000 claims description 29
- 238000007789 sealing Methods 0.000 claims description 24
- 239000000295 fuel oil Substances 0.000 claims description 20
- 230000002209 hydrophobic effect Effects 0.000 claims description 17
- 230000005494 condensation Effects 0.000 claims description 16
- 238000009833 condensation Methods 0.000 claims description 16
- 238000007599 discharging Methods 0.000 claims description 3
- 239000011800 void material Substances 0.000 claims 1
- 238000009434 installation Methods 0.000 abstract description 3
- 230000015572 biosynthetic process Effects 0.000 abstract description 2
- 230000002349 favourable effect Effects 0.000 abstract description 2
- 241000190070 Sarracenia purpurea Species 0.000 abstract 1
- 230000010354 integration Effects 0.000 abstract 1
- 239000002283 diesel fuel Substances 0.000 description 12
- 239000002245 particle Substances 0.000 description 9
- 238000000034 method Methods 0.000 description 6
- 230000008569 process Effects 0.000 description 5
- 239000012535 impurity Substances 0.000 description 3
- UQSXHKLRYXJYBZ-UHFFFAOYSA-N Iron oxide Chemical compound [Fe]=O UQSXHKLRYXJYBZ-UHFFFAOYSA-N 0.000 description 2
- 238000005299 abrasion Methods 0.000 description 2
- 230000009471 action Effects 0.000 description 2
- 238000004140 cleaning Methods 0.000 description 2
- 230000005484 gravity Effects 0.000 description 2
- 239000007788 liquid Substances 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 description 1
- 229920000297 Rayon Polymers 0.000 description 1
- 239000000428 dust Substances 0.000 description 1
- 239000003292 glue Substances 0.000 description 1
- 238000010438 heat treatment Methods 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 229910052751 metal Inorganic materials 0.000 description 1
- 239000007787 solid Substances 0.000 description 1
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Abstract
The utility model relates to a high-efficient fuel prefilter water separating structure, including the prefilter main casing body, filter core, lower end cover and center tube, the filter core lower part is installed in the prefilter main casing body, the center tube passes the filter core, the lower end cover is located the lower part of filter core, the lower end cover is equipped with the disc of through-hole for the center, the center tube port of center tube lower extreme passes the through-hole of lower end cover, the center tube with clearance between the through-hole of lower end cover forms drainage structures, the lower part of the prefilter main casing body is the space of catchmenting, the lower extreme installation water cup that the prefilter main casing body catchments, the water that the filter core filtered formation is followed drainage structures gets into the space of catchmenting, collect at last in the cup. Compared with the prior art, the utility model discloses the structure of mutually supporting of lower extreme cover and center tube is favorable to the abundant separation of fuel and water, makes the structural integration of drainage layer, strengthens the leakproofness, and is convenient for install when the assembly.
Description
Technical Field
The utility model relates to a fuel filter technical field, concretely relates to high-efficient fuel prefilter water separating structure.
Background
The fuel prefilter is connected in series to a pipeline in front of an oil inlet of the fuel pump and is used for removing solid impurities such as water, iron oxide, dust and the like contained in fuel oil and preventing a fuel oil system from being blocked and rusted, so that mechanical abrasion is reduced, the stable operation of the fuel oil system and an engine is ensured, and the reliability is improved. Because the fuel quality in China is not uniformly distributed, and the moisture content in the fuel is also uneven, after the conventional fuel prefilter is used for a period of time, the moisture of the fuel prefilter is reduced or even loses efficacy along with the increase of the use mileage, so that metal parts are corroded, and the abrasion of mechanical parts is brought.
The patent CN207620948U discloses an integrated water separation structure of a fuel oil prefilter, which includes filter paper, a water-drainage net and a water-collection chamber, the filter paper, the water-drainage net and the water-collection chamber are disposed in a main housing of the prefilter, the lower end cover of the prefilter includes a lower end cover body, and a fixing protrusion communicated with the bottom of the lower end cover body, the fixing protrusion is fixed on the main housing of the prefilter; the periphery of lower end cover body is provided with first sealing washer, fixed bellied periphery is provided with the second sealing washer. The lower end cover body is also provided with a drain hole, and the drain hole is positioned above the water collecting cavity. When the utility model is used, the dirty side of the fuel is separated from the water collecting cavity by the first sealing ring; the second sealing ring isolates the water collecting cavity from the cleaning side. The drain hole is formed in the lower end cover of the prefilter, so that water collected by filter paper and filtered by the drainage net can be smoothly settled to the water collecting cavity of the main shell of the prefilter through the lower end cover of the prefilter, and the normal work of an oil supply system is guaranteed.
However, in the water separation structure of the pre-filter disclosed in the patent, the lower end cover 7 of the pre-filter comprises a lower end cover body 7-1 and a fixing protrusion 7-2 communicated with the bottom of the lower end cover body 7-1, and the lower end cover body 7-1 and the fixing protrusion 7-2 are of an integral structure, and the following disadvantages exist: (1) the oil outlet (7-2) and the central pipe are not integrated, so that water easily enters fuel oil to be measured cleanly, and the high efficiency of water separation cannot be ensured; (2) the structure is complex, and the central tube needs additional glue or other processes to be fixed on the lower end cover 7; (3) the process stability requirement is high.
SUMMERY OF THE UTILITY MODEL
The utility model aims at providing a high-efficient fuel prefilter water separation structure for solving above-mentioned problem.
The purpose of the utility model is realized through the following technical scheme:
the utility model provides a high-efficient fuel prefilter water separating structure, includes the prefilter main casing body, filter core, lower extreme cover and center tube, the filter core lower part is installed in the prefilter main casing body, the center tube passes the filter core, the lower extreme cover is located the lower part of filter core, the lower extreme cover is the disc that the center was equipped with the through-hole, the center tube port of center tube lower extreme passes the through-hole of lower extreme cover, the center tube with clearance between the through-hole of lower extreme cover forms drainage structures, the lower part of the prefilter main casing body is the space of catchmenting, the cup is catchmented in the lower extreme installation of the prefilter main casing body, the water that the filter core filtered the formation is followed drainage structures gets into the space of catchment.
Furthermore, the filter element comprises a filter paper layer and a condensation layer arranged on the inner side of the filter paper layer.
Further, the outer wall of the central tube is provided with a hydrophobic layer.
Furthermore, a space for condensing water in fuel oil is formed between the condensation layer and the hydrophobic layer of the central pipe, and the inner side of the central pipe is a fuel oil clean side.
Furthermore, an oil collecting cavity is arranged in the water collecting space, and the outlet of the central tube is connected with the outer wall of the upper end of the oil collecting cavity in a sealing manner and communicated with the inside.
Furthermore, a second sealing element is arranged on the outer wall of the port of the central pipe and used for sealing with the shell of the oil collecting cavity, and the oil collecting cavity is provided with a fuel outlet.
Furthermore, an integrated disc heater is arranged at the lower part of the lower end cover, the integrated disc heater is arranged on the outer side of the filter element, and an opening is formed in the middle of the integrated disc heater and communicated with the water collecting space.
Furthermore, a first sealing element is arranged on the side wall of the lower end cover and used for sealing with the integrated disc heater, and the outer side of a middle opening hole of the integrated disc heater is sealed with the shell of the water collecting space.
Further, the drainage structure is a gap structure formed by a plurality of rib structures on the lower end cover or the central pipe, and the lower end cover is clamped with the central pipe.
Further, the lower end cover is connected with the central pipe and then fixedly installed in the prefilter main shell.
The specific working process is that unfiltered diesel oil (containing impurities and moisture) enters the main shell, dirty oil is arranged on the outer side of the filter paper, the unfiltered fuel oil passes through the filter paper, particles are intercepted, the lower end cover and the main shell of the prefilter are sealed, and the dirty oil is intercepted and enters the lower part. Water passes through the filter paper and is adsorbed by a condensation layer clinging to the filter paper, fine water molecules are condensed and grow, and in a space formed between the condensation layer and the outer wall of the central pipe, the water moves downwards under the action of gravity, passes through a drainage structure formed after the lower end cover and the central pipe are assembled, flows into a water collecting space and is finally collected into the water collecting cup.
Meanwhile, the particles are filtered through the filter paper in the condensation layer and the central pipe, the diesel oil after water is discharged through the condensation layer can pass through the hydrophobic layer on the central pipe, the diesel oil can pass through the hydrophobic layer, part of water molecules which do not enter the water collecting space can be intercepted by the hydrophobic layer due to the hydrophobic performance of the hydrophobic layer, the diesel oil passes through the water discharging structure, passes through the water collecting space and finally reaches the water collecting cup, and the diesel oil with the particles and the water being filtered is collected to the oil collecting cavity through the port of the central pipe and enters the next workpiece through the fuel oil outlet. The sealing element arranged on the central pipe intercepts liquid (filtered particles and unfiltered moisture) in a space formed by the condensation layer and the central pipe from entering the oil outlet, so that the cleanness of the diesel oil (filtered particles and moisture) can be fully ensured, and the operation of the engine is guaranteed.
Compared with the prior art, the utility model has the advantages of it is following:
1. the mutually-matched structure of the lower end cover and the central pipe is favorable for sufficient separation of fuel oil and water, the sealing performance is enhanced, the installation is convenient during the assembly, the two components can be clamped through a mechanical structure, the reserved space becomes an outlet of water, and the structure is stable.
2. The process steps are simple, the process stability is high, and the connection of the central tube and the lower end cover by using a viscose process is omitted.
3. Set up integrated disk heater, heating efficiency is high, and structural strength is high.
4. The drainage structure is a gap structure formed by a plurality of rib structures on the lower end cover or the central tube, so that moisture can be quickly drained.
Drawings
FIG. 1 is an overall sectional schematic view of a water separation structure of a fuel prefilter of the present invention;
FIG. 2 is a schematic view of the filter element structure of the present invention;
FIG. 3 is a schematic view of the structure of the lower end cap of the present invention;
FIG. 4 is a schematic view of the central tube structure of the present invention;
in the figure: 1 is a filter paper layer, 2 is a condensation layer, 3 is a first sealing element, 4 is a lower end cover, and 4-1 is a lower end cover clamping groove; 5 is a central tube, 5-1 is a hydrophobic layer, 5-2 is a port of the central tube, and 5-3 is a fixture block; 6 is a second sealing element, 7 is a central pipe outlet, 8 is a drainage structure, 9 is a prefilter main shell, 10 is a water collecting space, 11 is a fuel outlet, 12 is an integrated disc heater, 13 is a water collecting cup, and 14 is an oil collecting cavity.
Detailed Description
The present invention will be described in detail below with reference to the accompanying drawings and specific embodiments.
Examples
Referring to fig. 1 and 2, a high-efficiency water separation structure of a fuel prefilter comprises a prefilter main shell 9, a filter element, a lower end cover 4 and a central tube 5, wherein the lower part of the filter element is arranged in the prefilter main shell 9, the central tube 5 penetrates through the filter element, the lower end cover 4 is arranged at the lower part of the filter element, referring to fig. 3, the lower end cover 4 is in a disc shape with a through hole at the center, a central tube port 5-2 at the lower end of the central tube 5 penetrates through the through hole of the lower end cover 4, a gap between the central tube 5 and the through hole of the lower end cover 4 forms a drainage structure 8, the drainage structure 8 is a gap structure formed by a plurality of rib structures on the lower end cover 4 or the central tube 5, the lower end cover is clamped with the central tube, the lower part of the central tube 5 is provided with three clamping blocks 5-3, a, the fixture block 5-3 is clamped with the lower end cover clamping groove 4-1. The lower end cover 4 is connected with the central pipe 5 and then is installed and fixed in the prefilter main shell body 9, the lower part of the prefilter main shell body 9 is a water collecting space 10, the lower end of the prefilter main shell body 9 is provided with a water collecting cup 13, and water filtered by the filter element enters the water collecting space 10 from the drainage structure 8 and finally is collected in the water collecting cup 13.
As shown in fig. 2, the filter element comprises a filter paper layer 1 and a condensation layer 2 arranged on the inner side of the filter paper layer 1, as shown in fig. 4, a hydrophobic layer 5-1 is arranged on the outer wall of a central tube 5, a space for condensing water in fuel oil is formed between the condensation layer 2 and the hydrophobic layer 5-1 of the central tube 5, and the inner side of the central tube 5 is a fuel oil cleaning side. An oil collecting cavity 14 is arranged in the water collecting space 10, and the central tube outlet 7 of the central tube 5 is hermetically connected with the outer wall of the upper end of the oil collecting cavity 14 and communicated with the inside.
The outer wall of the central pipe port 5-2 is provided with a second sealing element 6, specifically a sealing ring, which is used for sealing with the shell of the oil collecting cavity 14, and the oil collecting cavity 14 is provided with a fuel outlet 11. The lower part of the lower end cover 4 is provided with an integrated disc heater 12, the integrated disc heater 12 is arranged on the outer side of the filter element, and the middle of the integrated disc heater 12 is provided with an opening and is communicated with the water collecting space 10.
The side wall of the lower end cover 4 is provided with a first sealing element 3, specifically a sealing ring, which is used for sealing with the integrated disc heater 12, and the outer side of the middle opening of the integrated disc heater 12 is sealed with the shell of the water collecting space 10.
The specific working process is that unfiltered diesel oil (containing impurities and moisture) enters the prefilter main shell 9, dirty oil is arranged outside the filter paper layer 1, unfiltered fuel oil passes through the filter paper, particulate matters are intercepted, the lower end cover 4 and the prefilter main shell 9 are sealed, and the dirty oil is intercepted and enters the lower part. Water passes through the filter paper and is adsorbed by the condensation layer 2 attached to the filter paper, fine water molecules are condensed and grow, and move downwards under the action of gravity in a space formed between the condensation layer 2 and the outer wall of the central pipe 5, pass through a drainage structure 8 formed after the lower end cover 4 and the central pipe 5 are assembled, flow into a water collecting space 10 and finally are collected into a water collecting cup 13.
Meanwhile, the particles are filtered by the filter paper in the condensation layer 2 and the central tube 5, the diesel oil after water is removed by the condensation layer 2 can pass through the hydrophobic layer 5-1 on the central tube 5, the diesel oil can pass through the hydrophobic layer 5-1, part of water molecules which do not enter the water collecting space 10 can be intercepted by the hydrophobic layer 5-1 due to the hydrophobic property of the hydrophobic layer 5-1, the diesel oil passes through the water discharging structure 8, passes through the water collecting space 10 and finally reaches the water collecting cup 13, and the diesel oil with the particles and the water being filtered out is collected to the oil collecting cavity 14 through the central tube outlet 7 and enters the next workpiece through the fuel oil outlet 11. The sealing element arranged on the central tube 5 intercepts liquid (filtered particles and unfiltered moisture) in a space formed by the condensation layer and the central tube from entering the oil outlet, so that the cleanness of the diesel oil (filtered particles and moisture) can be fully ensured, and the operation of the engine is guaranteed.
The embodiments described above are intended to facilitate the understanding and use of the invention by those skilled in the art. It will be readily apparent to those skilled in the art that various modifications to these embodiments may be made, and the generic principles described herein may be applied to other embodiments without the use of the inventive faculty. Therefore, the present invention is not limited to the above embodiments, and those skilled in the art should make improvements and modifications within the scope of the present invention according to the disclosure of the present invention.
Claims (10)
1. A high-efficiency water separation structure of a fuel prefilter comprises a prefilter main shell (9), a filter element, a lower end cover (4) and a central tube (5), wherein the lower part of the filter element is arranged in the prefilter main shell (9), the central tube (5) penetrates through the filter element, the lower end cover (4) is arranged at the lower part of the filter element,
the water-collecting type prefilter is characterized in that the lower end cover (4) is in a disc shape, a through hole is formed in the center of the disc shape, a central pipe port (5-2) at the lower end of the central pipe (5) penetrates through the through hole of the lower end cover (4), a water discharging structure (8) is formed in a gap between the central pipe (5) and the through hole of the lower end cover (4), a water collecting space (10) is formed in the lower portion of the prefilter main shell (9), and a water collecting cup (13) is installed at the lower end of the prefilter main.
2. The high-efficiency water separation structure of the pre-filter-oil separator as claimed in claim 1, wherein the filter element comprises a filter paper layer (1) and a condensation layer (2) arranged on the inner side of the filter paper layer (1).
3. A high-efficiency water separation structure of a pre-filter for fuel oil as claimed in claim 2, characterized in that the outer wall of the central tube (5) is provided with a hydrophobic layer (5-1).
4. A high-efficiency water separation structure of a fuel oil prefilter according to claim 3, wherein a space for condensing water in fuel oil is formed between the condensing layer (2) and the hydrophobic layer (5-1) of the central pipe (5), and the inner side of the central pipe (5) is a fuel oil clean side.
5. The high-efficiency water separation structure of the pre-filter for the fuel oil as claimed in claim 1, characterized in that an oil collecting cavity (14) is arranged in the water collecting space (10), and a central pipe outlet (7) of the central pipe (5) is connected with the outer wall of the upper end of the oil collecting cavity (14) in a sealing mode and is communicated with the inside of the oil collecting cavity.
6. A high efficiency fuel prefilter water separation structure according to claim 5 wherein said center tube port (5-2) is provided on its outer wall with a second seal (6) for sealing against the housing of said oil collection chamber (14), said oil collection chamber (14) being provided with a fuel outlet (11).
7. A high-efficiency water separation structure of a pre-filter oil as claimed in claim 1, characterized in that an integrated disc heater (12) is arranged at the lower part of the lower end cover (4), the integrated disc heater (12) is arranged outside the filter element, and an opening is arranged in the middle of the integrated disc heater (12) and is communicated with the water collecting space (10).
8. A high-efficiency water separation structure of a pre-filter oil as claimed in claim 7, characterized in that a first sealing member (3) is arranged on the side wall of the lower end cover (4) and used for sealing with the integrated disc heater (12), and the outer side of the middle opening of the integrated disc heater (12) is sealed with the shell of the water collecting space (10).
9. A high efficiency pre-filter oil water separation structure according to claim 1, characterized in that the drainage structure (8) is a void structure formed by a plurality of ribs on the lower end cover (4) or the center tube (5).
10. A high efficiency water separation structure for a fuel oil prefilter as claimed in claim 1 wherein said lower end cap (4) is attached to a center tube (5) and then fixed in place within said prefilter main housing (9).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201922366480.4U CN211422810U (en) | 2019-12-25 | 2019-12-25 | High-efficient fuel prefilter water separation structure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201922366480.4U CN211422810U (en) | 2019-12-25 | 2019-12-25 | High-efficient fuel prefilter water separation structure |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN211422810U true CN211422810U (en) | 2020-09-04 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201922366480.4U Active CN211422810U (en) | 2019-12-25 | 2019-12-25 | High-efficient fuel prefilter water separation structure |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN211422810U (en) |
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2019
- 2019-12-25 CN CN201922366480.4U patent/CN211422810U/en active Active
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