CN212583858U - Easily-assembled water separation structure of fuel prefilter - Google Patents
Easily-assembled water separation structure of fuel prefilter Download PDFInfo
- Publication number
- CN212583858U CN212583858U CN202020732382.8U CN202020732382U CN212583858U CN 212583858 U CN212583858 U CN 212583858U CN 202020732382 U CN202020732382 U CN 202020732382U CN 212583858 U CN212583858 U CN 212583858U
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- Prior art keywords
- end cover
- separation structure
- water
- shell
- water separation
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- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 title claims abstract description 94
- 239000000446 fuel Substances 0.000 title claims abstract description 30
- 238000011045 prefiltration Methods 0.000 title claims abstract description 29
- 238000000926 separation method Methods 0.000 title claims abstract description 21
- 238000007789 sealing Methods 0.000 claims description 25
- 230000002209 hydrophobic effect Effects 0.000 claims description 16
- 238000009833 condensation Methods 0.000 claims description 13
- 230000005494 condensation Effects 0.000 claims description 13
- 238000009434 installation Methods 0.000 abstract description 3
- 239000003921 oil Substances 0.000 description 10
- 239000000295 fuel oil Substances 0.000 description 8
- 239000002245 particle Substances 0.000 description 8
- 239000002283 diesel fuel Substances 0.000 description 6
- 230000005484 gravity Effects 0.000 description 4
- 210000003205 muscle Anatomy 0.000 description 4
- 238000001914 filtration Methods 0.000 description 3
- 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
- 238000005345 coagulation Methods 0.000 description 2
- 230000015271 coagulation Effects 0.000 description 2
- 238000007599 discharging Methods 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 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
- 238000004140 cleaning Methods 0.000 description 1
- 230000003749 cleanliness Effects 0.000 description 1
- 238000001514 detection method Methods 0.000 description 1
- 239000000428 dust Substances 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 230000002349 favourable effect Effects 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 238000005259 measurement 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 an easy fuel prefilter water separation structure of assembling, including casing, filter core, lower extreme cover and center tube, the filter core is installed in the casing, the center tube axial is passed the filter core, the lower extreme cover install in the casing and lie in the lower part of filter core, the lower extreme cover is the disc, and the centre is equipped with the circular recess of undercut, the lower extreme of center tube assemble in the circular recess, the edge of circular recess is equipped with a plurality of through-holes, the center tube outer end with be linked together between the through-hole, it is inherent in the casing the lower part of lower extreme cover is equipped with the space of catchmenting. The water filtered by the filter element flows down along the outer wall of the central tube and enters the water collecting space through the through hole of the circular groove of the lower end cover. The lower end cover of the structure is provided with the circular groove which is sunken downwards, the lower end of the central tube is assembled in the circular groove, the lower end cover and the shell are convenient to match, and the lower end cover and the shell can be separated during disassembly, so that the installation is convenient.
Description
Technical Field
The utility model relates to a fuel filter technical field, concretely relates to fuel prefilter water separation structure of easy assembly.
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 quality of fuel is not uniformly distributed, the moisture content in the fuel is also uneven, and 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 prior art discloses an integrated water separation structure of a fuel prefilter, which comprises filter paper, a water drainage net and a water collection cavity, wherein the filter paper and the water drainage net are arranged in a main casing of the prefilter, the water collection cavity is arranged below a lower end cover of the prefilter, the lower end cover of the prefilter comprises a lower end cover body and a fixing bulge, the fixing bulge is communicated with the bottom of the lower end cover body, and the fixing bulge is fixed on the main casing of the prefilter; the periphery of lower end cover body is provided with first sealing washer, and fixed bellied periphery is provided with the second sealing washer. The lower end cover body is also provided with a drain hole which 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 lower end cover of the prefilter is provided with a drain hole, so that water collected by filter paper and filtered by a drainage net can be smoothly settled to a 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 ensured. However, the water separation structure prefilter lower end cover has the following disadvantages: the oil outlet 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; the structure is complicated, and the center tube needs extra viscose or other technologies to fix on the lower end cover, is difficult to assemble.
SUMMERY OF THE UTILITY MODEL
The utility model aims at providing an easily assembled fuel prefilter water separation structure for solving the above problems to solve the inconvenient problem of water separation structure assembly in the prior art.
The purpose of the utility model is realized through the following technical scheme:
the utility model provides an easy assembly's fuel prefilter water separation structure, includes casing, filter core, lower extreme cover and center tube, the filter core is installed in the casing, the center tube axial is passed the filter core, the lower extreme cover install in the casing and lie in the lower part of filter core, the lower extreme cover is the disc, and the centre is equipped with the circular recess of undercut, the lower extreme of center tube assemble in the circular recess, the edge of circular recess is equipped with a plurality of through-holes, the center tube outer end with be linked together between the through-hole, the casing is inherent the lower part of lower extreme cover is equipped with the space that catchments. The water filtered by the filter element flows down along the outer wall of the central tube and enters the water collecting space through the through hole of the circular groove of the lower end cover. The lower end cover of the structure is provided with the circular groove which is sunken downwards, the lower end of the central tube is assembled in the circular groove, the lower end cover and the shell are convenient to match, and the lower end cover and the shell can be separated during disassembly, so that the installation is convenient.
Further, a cylindrical plate rib supporting piece is arranged at the lower portion of the shell, and the lower end cover is located at the upper portion of the plate rib supporting piece.
Furthermore, the lower part of the lower end cover is provided with a circular flange, and the circular flange is matched with the plate rib supporting piece and is in sealing assembly with the plate rib supporting piece.
Further, the diameter of ring flange is less than plate muscle support piece, the lateral surface of ring flange is equipped with the seal ring groove, be equipped with the sealing washer in the seal ring groove to through this sealing washer with plate muscle support piece is sealed mutually, and this kind of mounting means helps guaranteeing the leakproofness, and the outside is unfiltered oil, is intercepted by filter paper and gets off along with the action of gravity, subsides to the bottom to be separated by plate muscle support piece, for the water that dirty side separated, the inboard water that is separated by the waterproof material on the center tube that is through filtering back of plate muscle support piece.
Furthermore, a water collecting cup is arranged inside the plate rib supporting piece, and water formed by filtering through the filter element enters the water collecting space and is finally collected in the water collecting cup.
Furthermore, a water drain valve is arranged at the lower end of the water collecting space, water on two sides sinks to the lower part under the action of gravity, and water on a dirty side and water on a clean side are discharged through the water drain valve.
Furthermore, the shell is a plastic shell and is screwed on the lower part of the filter base, and the lower end cover is connected with the central pipe and then is installed and fixed in the shell.
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.
The specific working process of the structure is that unfiltered oil (containing impurities and moisture) enters the shell, dirty oil is arranged on the outer side of the filter paper, unfiltered fuel oil passes through the filter paper, particles are intercepted, the lower end cover and the shell are sealed, and the dirty oil is intercepted and enters the lower portion. Water passes through the filter paper and is adsorbed by a condensation layer clinging to the filter paper, tiny water molecules are condensed and grow, and in a space formed between the condensation layer and the outer wall of the central tube, the water moves downwards under the action of gravity and flows into a water collecting space to be finally collected.
Meanwhile, the particles are filtered through filter paper in the condensation layer and the center tube, diesel oil after water is removed through the condensation layer can pass through the hydrophobic layer on the center tube, 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 water passes through the channel on the lower end cover and finally reaches the water collecting space of the plastic shell through the water collecting space, at the moment, the sealing element on the lower end cover is sealed with the shell, the dirty side and the clean detection of the particles are guaranteed to be isolated, the diesel oil with the particles and the water being filtered passes through the port of the center tube and enters the next workpiece through the fuel outlet, the cleanliness (the particles and the water being filtered) of the diesel oil can.
Compared with the prior art, the lower end cover of the utility model is provided with the circular groove which is sunken downwards, so that the lower end of the central tube can be conveniently assembled in the circular groove, the lower end cover and the shell can be conveniently matched, and the lower end cover and the shell can be separated during disassembly, thereby facilitating the installation; the outer side surface of the circular ring flange is provided with a sealing ring groove, a sealing ring is arranged in the sealing ring groove and is sealed with the plate rib supporting piece through the sealing ring, and the mounting mode is favorable for ensuring the sealing performance and the dirty side and the clean measurement of isolated particles; the space reserved after the channel on the lower end cover is matched with the central pipe becomes an outlet of water, the structure is stable, and the water can be discharged quickly.
Drawings
Fig. 1 is a schematic view of the overall structure of the present invention;
fig. 2 is a schematic structural view of the back of the lower end cover of the present invention;
fig. 3 is a schematic structural view of the front side of the lower end cover of the present invention;
in the figure: the filter comprises a shell 100, a filter element 200, a lower end cover 300, a central pipe 400, a water collecting space 500, a plate rib supporting piece 600, a sealing ring 700, a filter base 800 and a water drain valve 900;
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, the water separation structure of the fuel prefilter, which is easy to assemble, comprises a housing 100, a filter element 200, a lower end cover 300 and a central tube 400, wherein the filter element 200 is installed in the housing 100, the central tube 400 axially penetrates through the filter element 200, and the lower end cover 300 is installed in the housing 100 and is positioned at the lower part of the filter element 200.
As shown in fig. 2 and 3, the lower end cap 300 is a disk shape, a circular groove 301 recessed downward is formed in the middle, the lower end of the central tube 400 is assembled in the circular groove 301, a plurality of through holes 302 are formed in the edge of the circular groove 301, and the number of the through holes is specifically 4 in this embodiment. The outer end of the central tube 400 is communicated with the through hole 302, a water collecting space 500 is arranged at the lower part of the lower end cover 300 in the shell 100, and water filtered by the filter element 200 flows down along the outer wall of the central tube 400 and enters the water collecting space 500 through the through hole 302 of the circular groove 301 of the lower end cover 300.
The casing 100 is a plastic casing 100, and is screwed to the lower part of the filter base 800, and the lower end cap 300 is connected with the central tube 400 and then installed and fixed in the casing 100. Filter core 200 includes the filter paper layer and locates the coagulation layer of filter paper layer inboard, and the center tube 400 outer wall sets up the hydrophobic layer, forms the space that the moisture condenses in the fuel between the hydrophobic layer of coagulation layer and center tube 400, and the center tube 400 inboard is the fuel clean side.
The lower part of the case 100 is provided with a cylindrical stud supporter 600, and the lower cap 300 is positioned at the upper part of the stud supporter 600. The lower part of the lower end cover 300 is provided with an annular flange 303, and the annular flange 303 is matched with the plate rib support 600 and is in sealing assembly. The diameter of the circular flange 303 is smaller than that of the plate rib supporting piece 600, a sealing ring groove 304 is formed in the outer side face of the circular flange 303, a sealing ring 700 is arranged in the sealing ring groove 304, and the sealing ring 700 is sealed with the plate rib supporting piece 600.
The plate rib supporting piece 600 is internally provided with a water collecting cup, water formed by filtering by the filter element 200 enters the water collecting space 500 and finally is collected in the water collecting cup, the lower end of the water collecting space 500 is provided with a water discharging valve 900, and after the water collecting space 500 is full of water, the water can be discharged through the water discharging valve 900.
During the working process, unfiltered oil (containing impurities and moisture) enters the shell 100, dirty oil is on the outer side of the filter paper, unfiltered fuel oil passes through the filter paper, particles are intercepted, the lower end cover 300 and the shell 100 are sealed, and the dirty oil is intercepted and enters the lower portion. The water passes through the filter paper and is adsorbed by the condensation layer clinging to the filter paper, the condensation of fine water molecules becomes large, and the water flows into the water collecting space and is finally collected in the space formed between the condensation layer and the outer wall of the central tube 400 due to the downward movement of the water under the action of gravity.
Meanwhile, the particles are filtered by the filter paper in the condensation layer and the central tube 400, diesel oil after water is discharged through the condensation layer can pass through the hydrophobic layer on the central tube 400, the diesel oil can pass through the hydrophobic layer, and part of water molecules which do not enter the water collecting space can be intercepted by the hydrophobic layer due to the hydrophobic property of the hydrophobic layer, and finally reach the water collecting space of the plastic shell through the water collecting space.
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. An easily-assembled water separation structure of a fuel prefilter comprises a shell (100), a filter element (200), a lower end cover (300) and a central tube (400), wherein the filter element (200) is installed in the shell (100), the central tube (400) axially penetrates through the filter element (200), the lower end cover (300) is installed in the shell (100) and is positioned at the lower part of the filter element (200),
the water collecting device is characterized in that the lower end cover (300) is disc-shaped, a circular groove (301) which is sunken downwards is formed in the middle of the lower end cover, the lower end of the central tube (400) is assembled in the circular groove (301), a plurality of through holes (302) are formed in the edge of the circular groove (301), the outer end of the central tube (400) is communicated with the through holes (302), and a water collecting space (500) is formed in the lower portion of the lower end cover (300) in the shell (100).
2. The easy-to-assemble water separation structure of the fuel prefilter as claimed in claim 1, wherein a cylindrical lath supporting piece (600) is arranged at the lower part of the shell (100), and the lower end cover (300) is positioned at the upper part of the lath supporting piece (600).
3. The fuel prefilter water separation structure easy to assemble according to claim 2, wherein the lower part of the lower end cover (300) is provided with an annular flange (303), and the annular flange (303) is matched with the plate rib support (600) and is in sealing assembly.
4. The oil pre-filter water separation structure easy to assemble according to claim 3, characterized in that the diameter of the circular flange (303) is smaller than that of the plate rib support (600), a sealing ring groove (304) is formed in the outer side face of the circular flange (303), a sealing ring (700) is arranged in the sealing ring groove (304), and the sealing ring (700) is used for sealing with the plate rib support (600).
5. The easy-to-assemble water separation structure of the fuel prefilter of claim 2, wherein a water collecting cup is arranged inside the plate rib support (600).
6. An easily assembled water separation structure of a fuel prefilter according to claim 1 wherein the lower end of said water collecting space (500) is provided with a water drain valve (900).
7. The easy-to-assemble water separation structure of the fuel prefilter of claim 1, wherein the shell (100) is a plastic shell (100) and is screwed on the lower part of the filter base (800), and the lower end cover (300) is connected with the central pipe (400) and then is installed and fixed in the shell (100).
8. The easy-to-assemble water separation structure of the fuel prefilter according to any one of claims 1 to 7, wherein the filter element (200) comprises a filter paper layer and a condensation layer arranged on the inner side of the filter paper layer.
9. The easy-to-assemble water separation structure of the fuel prefilter of claim 8, wherein the outer wall of the central pipe (400) is provided with a hydrophobic layer.
10. The easy-to-assemble water separation structure of the fuel prefilter is characterized in that a space for condensing water in fuel is formed between the condensation layer and the hydrophobic layer of the central pipe (400), and the inner side of the central pipe (400) is a clean side of the fuel.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020732382.8U CN212583858U (en) | 2020-05-07 | 2020-05-07 | Easily-assembled water separation structure of fuel prefilter |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020732382.8U CN212583858U (en) | 2020-05-07 | 2020-05-07 | Easily-assembled water separation structure of fuel prefilter |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN212583858U true CN212583858U (en) | 2021-02-23 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202020732382.8U Active CN212583858U (en) | 2020-05-07 | 2020-05-07 | Easily-assembled water separation structure of fuel prefilter |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN212583858U (en) |
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- 2020-05-07 CN CN202020732382.8U patent/CN212583858U/en active Active
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