CN113813674B - Filter capable of balancing pressure difference inside and outside filter element - Google Patents
Filter capable of balancing pressure difference inside and outside filter element Download PDFInfo
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- CN113813674B CN113813674B CN202111146181.5A CN202111146181A CN113813674B CN 113813674 B CN113813674 B CN 113813674B CN 202111146181 A CN202111146181 A CN 202111146181A CN 113813674 B CN113813674 B CN 113813674B
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- filter
- guide
- main shaft
- filter element
- transmission
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- 239000000463 material Substances 0.000 claims abstract description 15
- 230000005540 biological transmission Effects 0.000 claims description 76
- 239000007788 liquid Substances 0.000 claims description 31
- 238000009825 accumulation Methods 0.000 claims description 10
- 239000012528 membrane Substances 0.000 claims description 8
- 244000043261 Hevea brasiliensis Species 0.000 claims description 4
- 229920003052 natural elastomer Polymers 0.000 claims description 4
- 229920001194 natural rubber Polymers 0.000 claims description 4
- 239000000295 fuel oil Substances 0.000 abstract description 25
- UQSXHKLRYXJYBZ-UHFFFAOYSA-N iron oxide Inorganic materials [Fe]=O UQSXHKLRYXJYBZ-UHFFFAOYSA-N 0.000 abstract description 22
- 239000000428 dust Substances 0.000 abstract description 13
- NDLPOXTZKUMGOV-UHFFFAOYSA-N oxo(oxoferriooxy)iron hydrate Chemical compound O.O=[Fe]O[Fe]=O NDLPOXTZKUMGOV-UHFFFAOYSA-N 0.000 abstract description 6
- 239000012530 fluid Substances 0.000 abstract description 5
- 230000001360 synchronised effect Effects 0.000 abstract description 3
- 239000000446 fuel Substances 0.000 description 16
- 238000001914 filtration Methods 0.000 description 14
- 238000000034 method Methods 0.000 description 14
- 239000006185 dispersion Substances 0.000 description 9
- 235000017166 Bambusa arundinacea Nutrition 0.000 description 7
- 235000017491 Bambusa tulda Nutrition 0.000 description 7
- 241001330002 Bambuseae Species 0.000 description 7
- 235000015334 Phyllostachys viridis Nutrition 0.000 description 7
- 239000011425 bamboo Substances 0.000 description 7
- 239000012535 impurity Substances 0.000 description 7
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 7
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 description 6
- 238000010586 diagram Methods 0.000 description 4
- 239000002245 particle Substances 0.000 description 4
- 238000005299 abrasion Methods 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 239000002737 fuel gas Substances 0.000 description 1
- 239000007789 gas Substances 0.000 description 1
- 239000008187 granular material Substances 0.000 description 1
- 230000007774 longterm Effects 0.000 description 1
- 239000003921 oil Substances 0.000 description 1
- 230000000149 penetrating effect Effects 0.000 description 1
Images
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D29/00—Filters with filtering elements stationary during filtration, e.g. pressure or suction filters, not covered by groups B01D24/00 - B01D27/00; Filtering elements therefor
- B01D29/11—Filters with filtering elements stationary during filtration, e.g. pressure or suction filters, not covered by groups B01D24/00 - B01D27/00; Filtering elements therefor with bag, cage, hose, tube, sleeve or like filtering elements
- B01D29/31—Self-supporting filtering elements
- B01D29/33—Self-supporting filtering elements arranged for inward flow filtration
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D29/00—Filters with filtering elements stationary during filtration, e.g. pressure or suction filters, not covered by groups B01D24/00 - B01D27/00; Filtering elements therefor
- B01D29/50—Filters with filtering elements stationary during filtration, e.g. pressure or suction filters, not covered by groups B01D24/00 - B01D27/00; Filtering elements therefor with multiple filtering elements, characterised by their mutual disposition
- B01D29/56—Filters with filtering elements stationary during filtration, e.g. pressure or suction filters, not covered by groups B01D24/00 - B01D27/00; Filtering elements therefor with multiple filtering elements, characterised by their mutual disposition in series connection
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D29/00—Filters with filtering elements stationary during filtration, e.g. pressure or suction filters, not covered by groups B01D24/00 - B01D27/00; Filtering elements therefor
- B01D29/88—Filters with filtering elements stationary during filtration, e.g. pressure or suction filters, not covered by groups B01D24/00 - B01D27/00; Filtering elements therefor having feed or discharge devices
- B01D29/94—Filters with filtering elements stationary during filtration, e.g. pressure or suction filters, not covered by groups B01D24/00 - B01D27/00; Filtering elements therefor having feed or discharge devices for discharging the filter cake, e.g. chutes
Abstract
The invention relates to the technical field of filters, and discloses a filter for balancing pressure difference between the inside and the outside of a filter element. The invention can guide and disperse the fuel oil through the guide flange in the first filter element mechanism, can guide and collect ferric oxide and dust in the fuel oil under the condition of accumulated material collection of the accumulated material groove, can guide and collect the ferric oxide and the dust in the fuel oil again under the condition of synchronous guide and collection of the guide groove in the second filter element mechanism, synchronously reduces the pressure difference between the inner part and the outer part of the fluid director again through the hydraulic balance of the flat pressing mechanism, and avoids the damage to the structure of the filter caused by overlarge pressure difference between the inner part and the outer part of the fluid director.
Description
Technical Field
The invention relates to the technical field of filters, in particular to a filter capable of balancing pressure difference inside and outside a filter element.
Background
The filter, which is an accessory for filtering impurities or gas through filter paper, generally refers to an automobile filter, is an accessory for an engine, and is divided into: the fuel filter is used for filtering harmful particles and moisture in an engine fuel gas system so as to protect an oil pump nozzle, a cylinder sleeve, a piston ring and the like, reduce abrasion, avoid blockage and filter iron oxide contained in fuel.
However, the filter for automobile fuel in the current market has some defects, in the long-term use process of the traditional filter, the filter element of the traditional filter is easy to be blocked by the attachment of iron oxide and dust, so that the filtering efficiency of the filter is reduced, and in the use process, the pressure difference inside and outside the filter is very easy to be too large due to the attachment of iron oxide and dust, so that the structure of the filter is damaged. Accordingly, those skilled in the art have provided a filter that balances the pressure differential between the interior and exterior of the filter element to address the problems set forth above in the background.
Disclosure of Invention
The invention aims to provide a filter capable of balancing the pressure difference between the inside and the outside of a filter element so as to solve the problems in the background technology.
In order to achieve the purpose, the invention provides the following technical scheme: the utility model provides a filter of inside and outside pressure differential of balanced filter core, includes strains a section of thick bamboo A and strains a B, strain a section of thick bamboo A and strain a B and pass through transit pipe connection, the upper and lower mouth of pipe symmetric connection who changes the pipeline has flat pressing mechanism, the inlet of straining a section of thick bamboo A is connected with the feed liquor pipe, and strains a inboard of a section of thick bamboo A and be provided with first filter core mechanism, the liquid outlet of straining a section of thick bamboo B is connected with the drain pipe, and the inboard of straining a section of thick bamboo B is provided with second filter core mechanism.
As a still further scheme of the invention: the flat-pressing mechanism comprises a supporting sleeve, the inner side of the supporting sleeve is located at the bottom end position and is connected with a deformation diaphragm, the inner side of the supporting sleeve is located at the top end position and is symmetrically provided with a guide sliding sleeve, a pressure-bearing ring sheet is connected to the upper side of the deformation diaphragm, a telescopic sliding rod is arranged on the inner side of the guide sliding sleeve in a penetrating mode and is fixedly connected with the pressure-bearing ring sheet, transmission racks are symmetrically arranged on the front side and the rear side of the telescopic sliding rod, a first transmission main shaft and a second transmission main shaft are sequentially arranged on the inner side of the supporting sleeve from bottom to top, the first transmission main shaft is located at the front side position of the telescopic sliding rod, first torsion springs are symmetrically arranged at the two ends of the first transmission main shaft, the first transmission main shaft is connected with the transmission racks through first transmission gears, the second transmission main shaft is located at the rear side position of the telescopic sliding rod, and second torsion springs are symmetrically arranged at the two ends of the second transmission main shaft, and the second transmission main shaft is connected with the transmission racks through second transmission gears.
As a still further scheme of the invention: the deformation diaphragm is of a circular cover-shaped structure, and the deformation diaphragm is made of a natural rubber component.
As a still further scheme of the invention: the teeth of the transmission rack are meshed with the teeth of the second transmission gear and the teeth of the first transmission gear, and the first transmission main shaft and the second transmission main shaft are respectively in rotating connection with the transmission rack through the first transmission gear and the second transmission gear.
As a still further scheme of the invention: the first torsion spring and the second torsion spring are arranged in a forward and reverse symmetrical mode.
As a still further scheme of the invention: the first filter element mechanism comprises an outer ring frame, a liquid inlet pipe orifice A is symmetrically formed in the outer side of the outer ring frame, a primary filter screen cylinder is arranged on the inner side of the outer ring frame, flow guide flanges A are symmetrically arranged on the outer side of the primary filter screen cylinder, material accumulation grooves A are symmetrically formed in the two sides of the flow guide flanges A, an inner ring frame is arranged on the inner side of the primary filter screen cylinder, a liquid inlet pipe orifice B is symmetrically formed in the outer side of the inner ring frame, a high-efficiency filter screen cylinder is arranged on the inner side of the inner ring frame, the high-efficiency filter screen cylinder is located at the upper pipe orifice position of the transfer pipeline, the flow guide flanges B are symmetrically arranged on the outer side of the high-efficiency filter screen cylinder, and the material accumulation grooves B are symmetrically formed in the two sides of the flow guide flanges B.
As a still further scheme of the invention: four groups are no less than to water conservancy diversion flange A's quantity, and water conservancy diversion flange A is the same with the quantity of feed liquor mouth of pipe A, water conservancy diversion flange A is just to feed liquor mouth of pipe A's port position department.
As a still further scheme of the invention: four groups are no less than to water conservancy diversion flange B's quantity, and water conservancy diversion flange B is the same with the quantity of feed liquor mouth of pipe B, water conservancy diversion flange B is just to the port position department of feed liquor mouth of pipe B.
As a still further scheme of the invention: the second filter element mechanism comprises a guide ring frame, a guide pipe orifice is symmetrically formed in the outer side of the guide ring frame, a precise filter screen cylinder is arranged on the inner side of the guide ring frame, a guide groove is symmetrically formed in the inner wall of the precise filter screen cylinder, the precise filter screen cylinder is located at the lower orifice position of the transfer pipeline, and a splitter plate is symmetrically arranged between the precise filter screen cylinder and the transfer pipeline.
As a still further scheme of the invention: the flow guide grooves are of a V-shaped structure, the number of the flow guide grooves is twelve, and the flow guide grooves are annularly and symmetrically arranged relative to the circle center of the precise filter screen cylinder.
As a still further scheme of the invention: the number of the splitter plates is the same as that of the diversion trenches, and the splitter plates and the diversion trenches are in one-to-one correspondence with each other.
Compared with the prior art, the invention has the beneficial effects that:
1. according to the invention, through the combination of the first filter element mechanism and the second filter element mechanism, the fuel oil can be fully filtered, in the using process of the filter, the diversion of the fuel oil is dispersed through the diversion flange in the first filter element mechanism, the diversion collection treatment can be carried out on the ferric oxide and the dust in the fuel oil under the condition of the accumulated material collection of the accumulated material groove, the diversion collection treatment can be carried out on the ferric oxide and the dust in the fuel oil again under the condition of the synchronous diversion collection of the diversion groove in the second filter element mechanism, and further, the high-efficiency filtering performance of the filter is ensured through the uniform diversion collection of the ferric oxide and the dust, and the filtering performance of the filter is prevented from being influenced by the scattered attachment of the ferric oxide and the dust.
2. According to the invention, the first filter element mechanism and the second filter element mechanism are used for uniformly guiding and collecting iron oxide and dust, so that the filtering and circulating performance of the filter can be ensured, the pressure difference between the inside and the outside of the fluid director is further reduced, the pressure difference between the inside and the outside of the fluid director can be reduced again through the synchronous hydraulic balance of the flat pressing mechanism, and the phenomenon that the structure of the filter is damaged due to the overlarge pressure difference between the inside and the outside of the fluid director is avoided.
Drawings
FIG. 1 is a schematic diagram of a filter for balancing the pressure difference between the inside and outside of a filter element;
FIG. 2 is a schematic view showing the configuration of the interior of a filter cartridge A in a filter for equalizing the pressure difference between the inside and the outside of the filter element;
FIG. 3 is a schematic view showing the configuration of the inside of a filter cartridge B in a filter for equalizing the pressure difference between the inside and the outside of the filter element;
FIG. 4 is a schematic diagram of a first filter element mechanism in a filter for balancing pressure differences between the inside and outside of the filter element;
FIG. 5 is a schematic diagram of a second filter element mechanism in a filter for equalizing pressure differences between the interior and exterior of the filter element;
FIG. 6 is a schematic diagram of a filter middle pressure mechanism for balancing the pressure difference between the inside and the outside of the filter element.
In the figure: 1. a filter cartridge A; 2. a filter cartridge B; 3. a transit pipeline; 4. a liquid outlet pipe; 5. a liquid inlet pipe; 6. a flat pressing mechanism; 61. a support sleeve; 62. a deformation membrane; 63. a pressure-bearing ring sheet; 64. a first torsion spring; 65. a first transmission main shaft; 66. a second torsion spring; 67. a second drive spindle; 68. a guide sliding sleeve; 69. a telescopic sliding rod; 610. a drive rack; 611. a second transmission gear; 612. a first drive gear; 7. a first filter element mechanism; 71. an outer ring frame; 72. a liquid inlet pipe orifice A; 73. a primary filter screen cylinder; 74. a material accumulation groove A; 75. a flow guide flange A; 76. a liquid inlet pipe orifice B; 77. an inner ring frame; 78. a flow guide flange B; 79. a material accumulation groove B; 710. a high efficiency filter screen cylinder; 8. a second filter element mechanism; 81. a flow guide ring frame; 82. a flow guide pipe orifice; 83. a precise filter screen cylinder; 84. a diversion trench; 85. a splitter plate.
Detailed Description
Referring to fig. 1 to 6, in an embodiment of the present invention, a filter for balancing pressure difference between inside and outside of a filter element includes a filter cartridge A1 and a filter cartridge B2, the filter cartridge A1 is connected to the filter cartridge B2 through a transfer pipe 3, upper and lower pipe orifices of the transfer pipe 3 are symmetrically connected to a flattening mechanism 6, the flattening mechanism 6 includes a support sleeve 61, a deformable membrane 62 is connected to a bottom end position of an inner side of the support sleeve 61, the deformable membrane 62 is a circular cover-shaped structure, and the deformable membrane 62 is made of a natural rubber material.
The inner side of the supporting sleeve 61 is symmetrically provided with a guiding sliding sleeve 68 at the top end position, a pressure-bearing ring sheet 63 is connected above the deformation diaphragm 62, a telescopic sliding rod 69 is inserted and clamped in the inner side of the guiding sliding sleeve 68, the bottom end of the telescopic sliding rod 69 is fixedly connected with the pressure-bearing ring sheet 63, transmission racks 610 are symmetrically arranged on the front side and the rear side of the telescopic sliding rod 69, a first transmission main shaft 65 and a second transmission main shaft 67 are sequentially arranged on the inner side of the supporting sleeve 61 from bottom to top, the first transmission main shaft 65 is arranged at the front side position of the telescopic sliding rod 69, first torsion springs 64 are symmetrically arranged at the two ends of the first transmission main shaft 65, the first transmission main shaft 65 is connected with the transmission racks 610 through a first transmission gear 612, the second transmission main shaft 67 is arranged at the rear side position of the telescopic sliding rod 69, second torsion springs 66 are symmetrically arranged at the two ends of the second transmission main shaft 67, the second transmission main shaft 67 is connected with the transmission racks 610 through a second transmission gear 611, the teeth of the transmission rack 610 are engaged with the teeth of the second transmission gear 611 and the first transmission gear 612, the first transmission main shaft 65 and the second transmission main shaft 67 are respectively connected with the transmission rack 610 through the first transmission gear 612 and the second transmission gear 611 in a rotating manner, the first torsion spring 64 and the second torsion spring 66 are arranged in a forward and reverse symmetrical manner, when the filter is used, when the deformation diaphragm 62 is deformed and expanded, the thrust generated by the expansion is transmitted to the pressure-bearing ring piece 63 to push the pressure-bearing ring piece 63 to move upwards, the pressure-bearing ring piece 63 pushes the telescopic slide bar 69 to slide in the guide slide sleeve 68 in the upward movement process, the transmission rack 610 synchronously drives the first transmission gear 612 and the second transmission gear 611 to rotate symmetrically in the sliding process, and further drives the first transmission main shaft 65 and the second transmission main shaft 67 to rotate in a forward direction and in a reverse direction, the reverse rotation, through the elastic torsion of the first torsion spring 64 and the second torsion spring 66 which are arranged symmetrically in the positive and reverse directions, the pressure-bearing ring 63 elastically supports the deformation diaphragm 62, further balances the pressure difference of the fuel inside and outside the filter, and enables the fuel to keep the balanced internal and external pressure to circulate in the filter.
The liquid inlet of the filter cylinder A1 is connected with a liquid inlet pipe 5, a first filter element mechanism 7 is arranged on the inner side of the filter cylinder A1, the first filter element mechanism 7 comprises an outer ring frame 71, liquid inlet pipe orifices A72 are symmetrically formed in the outer side of the outer ring frame 71, primary filter screen cylinders 73 are arranged on the inner side of the outer ring frame 71, guide flanges A75 are symmetrically arranged on the outer sides of the primary filter screen cylinders 73, material accumulation grooves A74 are symmetrically formed in the two sides of each guide flange A75, an inner ring frame 77 is arranged on the inner side of each primary filter screen cylinder 73, liquid inlet pipe orifices B76 are symmetrically formed in the outer side of each inner ring frame 77, efficient filter screen cylinders 710 are arranged on the inner side of each inner ring frame 77, the efficient filter screen cylinders 710 are located at the positions of pipe orifices on the upper portion of the transit pipeline 3, guide flanges B78 are symmetrically formed in the outer sides of the guide flanges B78, material accumulation grooves B79 are symmetrically formed in the two sides of the guide flanges B78, the guide flanges A75 are not less than four groups, and the guide flanges A75 are the same as the liquid inlet pipe orifices A72, the guide flange A75 is right opposite to the port position of the liquid inlet pipe orifice A72, the number of the guide flange B78 is not less than four groups, the number of the guide flange B78 is the same as that of the liquid inlet pipe orifice B76, the guide flange B78 is right opposite to the port position of the liquid inlet pipe orifice B76, in the using process of the filter, fuel is pushed by a pressure pump and pressed into the filter cartridge A1 through the liquid inlet pipe 5, the fuel is pressed into the outer ring frame 71 through the liquid inlet pipe orifice A72 under the pressure action, and then the guide flange A75 conducts guide dispersion on the fuel, in the guide dispersion process, the fuel filters the primary filter screen cylinder 73, impurities such as large-particle iron oxide and dust generated by filtration are uniformly collected into the accumulated fuel groove A74 under the guide flow of the guide flange A75, the primarily filtered fuel is pressed into the inner ring frame 77 through the liquid inlet pipe orifice B76, and then the guide flange B78 conducts guide dispersion on the fuel again, in the diversion dispersion process, the fuel filters the high-efficient filter screen section of thick bamboo 710, and impurity such as granule iron oxide, dust that the filtration produced is in the diversion of water conservancy diversion flange B78, and in unified the gathering to long-pending material recess B79, the fuel circulation after the double filtration is to in the transfer pipeline 3, carries out the transfer circulation through transfer pipeline 3.
A liquid outlet of the filter cartridge B2 is connected with a liquid outlet pipe 4, a second filter element mechanism 8 is arranged on the inner side of the filter cartridge B2, the second filter element mechanism 8 comprises a guide ring frame 81, guide pipe orifices 82 are symmetrically arranged on the outer side of the guide ring frame 81, a precise filter screen cylinder 83 is arranged on the inner side of the guide ring frame 81, guide grooves 84 are symmetrically arranged on the inner wall of the precise filter screen cylinder 83, the precise filter screen cylinder 83 is positioned at the position of a lower pipe orifice of the transfer pipeline 3, flow distribution plates 85 are symmetrically arranged between the precise filter screen cylinder 83 and the transfer pipeline 3, the flow distribution plates 84 are of a V-shaped structure, the number of the guide grooves 84 is twelve, the guide grooves 84 are annularly and symmetrically arranged relative to the center of the precise filter screen cylinder 83, the flow distribution plates 85 are the same as the number of the guide grooves 84, the flow distribution plates 85 are in one-to-one correspondence with the guide grooves 84, the fuel oil which is transferred is just pressed into the second filter element mechanism 8 through the transfer pipeline 3, the flow distribution plates 85 conduct flow guide and disperse the fuel oil, the flow is guided into the guide grooves 84 of the V-shaped structure, the guide pipe 83, the fine impurities which are filtered out of the filter cartridge B2, and then are collected into the liquid outlet pipe 4.
The working principle of the invention is as follows: in the using process of the filter, fuel oil is pushed by a pressure pump and is pressed into the filter cylinder A1 through the liquid inlet pipe 5, the fuel oil is positively pressurized into the outer ring frame 71 through the liquid inlet pipe orifice A72 under the action of pressure, the guide flange A75 conducts guide dispersion on the fuel oil, in the guide dispersion process, the fuel oil filters the primary filter screen cylinder 73, impurities such as large-particle iron oxide and dust generated by filtration are uniformly collected into the accumulation groove A74 under the guide flow of the guide flange A75, the fuel oil after primary filtration is positively pressurized into the inner ring frame 77 through the liquid inlet pipe orifice B76, the guide flange B78 conducts guide dispersion on the fuel oil again, in the guide dispersion process, the fuel oil filters the high-efficiency filter screen cylinder 710, impurities such as small-particle iron oxide and dust generated by filtration are uniformly collected into the accumulation groove B79 under the guide flow of the guide flange B78, the fuel oil after double filtration flows into the transfer pipeline 3, the transfer circulation is carried out through the transfer pipeline 3, the fuel oil which is transferred and circulated is pressed into the second filter element mechanism 8 through the transfer pipeline 3, the flow distribution plate 85 conducts flow guide dispersion on the fuel oil, the fuel oil is guided into the flow guide groove 84 with the V-shaped structure, then the fuel oil is filtered through the precise filter screen cylinder 83, fine impurities generated by filtering are collected at the V-shaped conical bottom of the flow guide groove 84, the filtered pure fuel oil is positively pressurized into the filter cylinder B2 and is discharged through the liquid outlet pipe 4, further, in the using process of the filter, when the fuel oil circulates in the transfer pipeline 3, the pressure generated by the fuel oil is transmitted to the deformation diaphragm 62, the deformation diaphragm 62 made of natural rubber is forced to deform and expand, so that the pressure difference of the fuel oil inside and outside the filter is balanced, and when the deformation diaphragm 62 deforms and expands, the thrust generated by expansion is transmitted to the pressure-bearing ring 63, and the pressure-bearing ring 63 is pushed to move upwards, the pressure-bearing ring piece 63 pushes the telescopic slide rod 69 to slide in the guide slide sleeve 68 in the upward movement process, the transmission rack 610 is synchronously driven to slide, the transmission rack 610 drives the first transmission gear 612 and the second transmission gear 611 to symmetrically rotate in the sliding process, and further drives the first transmission main shaft 65 and the second transmission main shaft 67 to rotate in the forward direction and the reverse direction, the deformation diaphragm 62 is elastically supported by the pressure-bearing ring piece 63 through elastic torsion of the first torsion spring 64 and the second torsion spring 66 which are symmetrically arranged in the forward direction and the reverse direction, the pressure difference of fuel inside and outside the filter is further balanced, and the balanced internal pressure and the balanced external pressure of the fuel are kept to circulate in the filter.
The above description is only for the preferred embodiment of the present invention, but the scope of the present invention is not limited thereto, and any person skilled in the art should be considered to be within the technical scope of the present invention, and the technical solutions and the inventive concepts thereof according to the present invention are equivalent to or changed within the technical scope of the present invention.
Claims (10)
1. A filter capable of balancing pressure difference between the inside and the outside of a filter element comprises a filter cylinder A (1) and a filter cylinder B (2), and is characterized in that the filter cylinder A (1) is connected with the filter cylinder B (2) through a transfer pipeline (3), the upper and lower pipe orifices of the transfer pipeline (3) are symmetrically connected with a flattening mechanism (6), a liquid inlet of the filter cylinder A (1) is connected with a liquid inlet pipe (5), a first filter element mechanism (7) is arranged on the inner side of the filter cylinder A (1), a liquid outlet of the filter cylinder B (2) is connected with a liquid outlet pipe (4), and a second filter element mechanism (8) is arranged on the inner side of the filter cylinder B (2);
the flat pressing mechanism (6) comprises a supporting sleeve (61), the inner side of the supporting sleeve (61) at the bottom end is connected with a deformation membrane (62), and the inner side of the supporting sleeve (61) is symmetrically provided with a guiding sliding sleeve (68) at the top end position, a pressure-bearing ring sheet (63) is connected above the deformation membrane (62), a telescopic sliding rod (69) penetrates through and is clamped at the inner side of the guide sliding sleeve (68), the bottom end of the telescopic slide bar (69) is fixedly connected with the pressure-bearing ring sheet (63), and the front and the back sides of the telescopic sliding rod (69) are symmetrically provided with transmission racks (610), the inner side of the supporting sleeve (61) is sequentially provided with a first transmission main shaft (65) and a second transmission main shaft (67) from bottom to top, the first transmission main shaft (65) is positioned at the front position of the telescopic slide bar (69), and both ends of the first transmission main shaft (65) are symmetrically provided with first torsion springs (64), the first transmission main shaft (65) is connected with the transmission rack (610) through a first transmission gear (612), the second transmission main shaft (67) is positioned at the rear position of the telescopic slide rod (69), and two ends of the second transmission main shaft (67) are symmetrically provided with second torsion springs (66), the second transmission main shaft (67) is connected with the transmission rack (610) through a second transmission gear (611).
2. A filter for balancing the pressure difference between the inside and the outside of a filter element according to claim 1, wherein the deformable membrane (62) is a dome-shaped structure, and the deformable membrane (62) is made of a natural rubber material.
3. A filter for balancing the pressure difference between the inside and the outside of a filter element according to claim 1, wherein the teeth of the transmission rack (610) are engaged with the teeth of the second transmission gear (611) and the first transmission gear (612), and the first transmission main shaft (65) and the second transmission main shaft (67) are rotatably connected with the transmission rack (610) through the first transmission gear (612) and the second transmission gear (611), respectively.
4. A filter according to claim 1, characterised in that the first torsion spring (64) and the second torsion spring (66) are arranged symmetrically in the forward and reverse directions.
5. The filter for balancing the pressure difference between the inside and the outside of the filter element according to claim 1, wherein the first filter element mechanism (7) comprises an outer ring frame (71), the outer side of the outer ring frame (71) is symmetrically provided with liquid inlet pipe orifices a (72), the inner side of the outer ring frame (71) is provided with a primary filter screen cylinder (73), the outer side of the primary filter screen cylinder (73) is symmetrically provided with flow guide flanges a (75), the two sides of the flow guide flanges a (75) are symmetrically provided with material accumulation grooves a (74), the inner side of the primary filter screen cylinder (73) is provided with an inner ring frame (77), the outer side of the inner ring frame (77) is symmetrically provided with liquid inlet pipe orifices B (76), the inner side of the inner ring frame (77) is provided with high efficiency filter screen cylinders (710), the high efficiency filter screen cylinders (710) are located at the upper pipe orifices of the transfer pipeline (3), the outer side of the high efficiency filter screen cylinders (710) is symmetrically provided with flow guide flanges B (78), and the two sides of the flow guide flanges B (78) are symmetrically provided with material accumulation grooves B (79).
6. A filter according to claim 5, wherein the number of the guide flanges A (75) is not less than four, and the number of the guide flanges A (75) is the same as that of the inlet nozzles A (72), and the guide flanges A (75) are opposite to the port positions of the inlet nozzles A (72).
7. A filter for balancing the pressure difference between the inside and the outside of a filter element as claimed in claim 5, wherein the number of the guide flanges B (78) is not less than four, and the number of the guide flanges B (78) is the same as that of the inlet pipe orifices B (76), and the guide flanges B (78) are opposite to the port positions of the inlet pipe orifices B (76).
8. The filter for balancing the pressure difference between the inside and the outside of the filter element according to claim 1, wherein the second filter element mechanism (8) comprises a guide ring frame (81), guide pipe openings (82) are symmetrically formed in the outer side of the guide ring frame (81), a precise filter screen cylinder (83) is arranged on the inner side of the guide ring frame (81), guide grooves (84) are symmetrically formed in the inner wall of the precise filter screen cylinder (83), the precise filter screen cylinder (83) is located at the lower pipe opening position of the transfer pipeline (3), and a splitter plate (85) is symmetrically arranged between the precise filter screen cylinder (83) and the transfer pipeline (3).
9. The filter of claim 8, wherein the flow guide grooves (84) are of a V-shaped structure, the number of the flow guide grooves (84) is twelve, and the flow guide grooves (84) are annularly and symmetrically arranged relative to the center of the precise filter screen cylinder (83).
10. The filter of claim 8, wherein the number of the splitter plates (85) and the guide grooves (84) is the same, and the splitter plates (85) and the guide grooves (84) are in one-to-one correspondence.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111146181.5A CN113813674B (en) | 2021-09-28 | 2021-09-28 | Filter capable of balancing pressure difference inside and outside filter element |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111146181.5A CN113813674B (en) | 2021-09-28 | 2021-09-28 | Filter capable of balancing pressure difference inside and outside filter element |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN113813674A CN113813674A (en) | 2021-12-21 |
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| WO2005099877A1 (en) * | 2004-04-15 | 2005-10-27 | Entegris, Inc. | Pleated-type cartridge filter device |
| WO2012021971A1 (en) * | 2010-08-20 | 2012-02-23 | Trojan Technologies | Fluid filter device |
| CN203640895U (en) * | 2013-12-15 | 2014-06-11 | 重庆市双雄汽车配件有限责任公司 | Fuel filter |
| CN204312221U (en) * | 2014-12-10 | 2015-05-06 | 江苏金派汽车配件有限公司 | A kind of can the air filtering core of balance pressure |
| CN205569871U (en) * | 2016-03-21 | 2016-09-14 | 西安天厚滤清技术有限责任公司 | Range upon range of formula multiple stages of filtering core |
| CN107224792B (en) * | 2016-12-30 | 2019-05-17 | 浙江大唐国际江山新城热电有限责任公司 | A kind of natural gas air intake filter |
| CN107854890B (en) * | 2017-11-06 | 2020-04-03 | 江苏康茂环保工程有限公司 | Drum-type filter core anti-blocking filter |
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