CN114247199A - Multistage precision filter - Google Patents
Multistage precision filter Download PDFInfo
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- CN114247199A CN114247199A CN202111467141.0A CN202111467141A CN114247199A CN 114247199 A CN114247199 A CN 114247199A CN 202111467141 A CN202111467141 A CN 202111467141A CN 114247199 A CN114247199 A CN 114247199A
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- pipe
- connecting rod
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- 238000007789 sealing Methods 0.000 claims abstract description 34
- 230000007246 mechanism Effects 0.000 claims abstract description 22
- 238000009434 installation Methods 0.000 claims abstract description 15
- 238000001914 filtration Methods 0.000 claims abstract description 11
- 230000000149 penetrating effect Effects 0.000 claims abstract description 9
- 125000003003 spiro group Chemical group 0.000 claims description 7
- 239000003351 stiffener Substances 0.000 claims description 4
- 230000000994 depressogenic effect Effects 0.000 claims description 2
- 238000007142 ring opening reaction Methods 0.000 claims description 2
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 abstract description 9
- 239000007788 liquid Substances 0.000 description 12
- 230000000694 effects Effects 0.000 description 4
- 239000012535 impurity Substances 0.000 description 4
- 238000000034 method Methods 0.000 description 4
- 230000003014 reinforcing effect Effects 0.000 description 4
- 230000008569 process Effects 0.000 description 3
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 description 2
- 230000007613 environmental effect Effects 0.000 description 2
- 238000003754 machining Methods 0.000 description 2
- 238000000926 separation method Methods 0.000 description 2
- 239000010865 sewage Substances 0.000 description 2
- RTAQQCXQSZGOHL-UHFFFAOYSA-N Titanium Chemical compound [Ti] RTAQQCXQSZGOHL-UHFFFAOYSA-N 0.000 description 1
- 230000009471 action Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000003889 chemical engineering Methods 0.000 description 1
- 238000004140 cleaning Methods 0.000 description 1
- 230000008602 contraction Effects 0.000 description 1
- 238000000151 deposition Methods 0.000 description 1
- 239000002274 desiccant Substances 0.000 description 1
- 238000012938 design process Methods 0.000 description 1
- 238000007599 discharging Methods 0.000 description 1
- 239000003814 drug Substances 0.000 description 1
- 238000007667 floating Methods 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000003892 spreading Methods 0.000 description 1
- 230000007480 spreading Effects 0.000 description 1
- 229910001220 stainless steel Inorganic materials 0.000 description 1
- 239000010935 stainless steel Substances 0.000 description 1
- 238000003860 storage Methods 0.000 description 1
- 239000000725 suspension Substances 0.000 description 1
- 229910052719 titanium Inorganic materials 0.000 description 1
- 239000010936 titanium Substances 0.000 description 1
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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
- B01D29/35—Self-supporting filtering elements arranged for outward 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
- B01D29/58—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 arranged concentrically or coaxially
-
- 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
- B01D29/62—Regenerating the filter material in the filter
- B01D29/64—Regenerating the filter material in the filter by scrapers, brushes, nozzles, or the like, acting on the cake side of the filtering element
- B01D29/6469—Regenerating the filter material in the filter by scrapers, brushes, nozzles, or the like, acting on the cake side of the filtering element scrapers
-
- 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
-
- 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
- B01D29/96—Filters with filtering elements stationary during filtration, e.g. pressure or suction filters, not covered by groups B01D24/00 - B01D27/00; Filtering elements therefor in which the filtering elements are moved between filtering operations; Particular measures for removing or replacing the filtering elements; Transport systems for filters
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- Chemical & Material Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Filtration Of Liquid (AREA)
Abstract
The invention relates to a multistage precision filter, which comprises a cylinder body and an end cover, wherein a water inlet pipe and a water outlet pipe are respectively arranged on two sides of the end cover, an L-shaped plate for separating the water inlet pipe from the water outlet pipe is further arranged at the inner top of the end cover, a filtering mechanism extending into the cylinder body is arranged at the horizontal end of the L-shaped plate, the filtering mechanism comprises an outer filter element and an inner filter element, a sealing plate for supporting the inner filter element is arranged at the bottom end of the outer filter element, an installation seat is arranged at the bottom end of the sealing plate, a drain pipe penetrating through the installation seat is arranged on the sealing plate, a cylinder I penetrating through the bottom wall of the cylinder body is arranged at the inner bottom of the cylinder body, a spiral pipe extending into the cylinder I is arranged at the bottom of the installation seat, a circle of protrusion part in threaded connection with the inner top of the cylinder I is arranged on the outer side wall of the top end of the spiral pipe, and a pushing mechanism is arranged between the cylinder I and the spiral pipe below the protrusion part. The invention has simple structure and convenient use.
Description
Technical Field
The invention relates to the technical field of filters, in particular to a multistage precision filter.
Background
The shell of the cylinder body is generally made of stainless steel, tubular filter elements such as PP melt-blown filter elements, wire-fired filter elements, folded filter elements, titanium filter elements, activated carbon filter elements and the like are adopted as the filter elements inside the cylinder body, different filter elements are selected according to different filter media and design processes so as to meet the requirement of effluent quality, the precision filter is used for solid-liquid separation of various suspension liquids, has higher environmental requirement and higher filtering precision, has wide application range, and is suitable for the industrial fields of medicine, food, chemical engineering, environmental protection, water treatment and the like.
A precision filter according to publication No. CN213995073U, which has the following problems, for example: when top cap and barrel separation, losing the fixed back of first annular piece to the filter core, the filter core takes place the problem of sliding or skew easily on the plectane, is adding under the influence that receives spring extension driving force simultaneously, and the probability increase of filter core landing from the plectane, and then causes the influence to its security easily.
Disclosure of Invention
The invention aims to provide a multistage precision filter.
The technical problem of the invention is mainly solved by the following technical scheme:
the utility model provides a multistage precision filter, includes barrel and end cover, wherein the end cover both sides are provided with inlet tube and outlet pipe respectively, and the top still is provided with the L template that separates inlet tube and outlet pipe in the end cover, be provided with the filtering mechanism who extends to in the barrel on the L template horizontal end:
the filter mechanism comprises an outer filter element and an inner filter element, wherein a filter screen for supporting the outer filter element is radially arranged on the outer side wall of the inner filter element, a screw hole I for accommodating the top end of the inner filter element and in threaded connection with the top end of the inner filter element is formed in the horizontal end of the L-shaped plate, a sealing plate for supporting the inner filter element is arranged at the bottom end of the outer filter element, an installation seat is arranged at the bottom end of the sealing plate, and a drain pipe penetrating through the installation seat is arranged on the sealing plate;
the bottom is provided with the drum I that runs through its diapire in the barrel, and wherein the mount pad bottom is provided with the solenoid that extends to in the drum I, be provided with the bulge of top spiro union in round and the drum I on the solenoid top lateral wall, wherein be provided with pushing mechanism between drum I and the solenoid of bulge below, and pushing mechanism is including setting up the ring on drum I inside wall, be provided with the top overcoat on the solenoid rather than the drum II of spiro union in the ring opening, wherein drum II both ends all overcoat have a spacing ring, and top spacing ring bottom is provided with the surrounding edge that the round extends to on the ring top face, be provided with the connecting rod that both ends are connected with upper and lower two sets of spacing rings respectively in the ring, wherein the overcoat has the spring on the gag lever post of ring top.
Preferably, L template horizontal end top face is arc sunk structure, and wherein screw I sets up in the middle of the arc depressed part of L template horizontal end, and still sets up the round and be used for holding the draw-in groove on outer filter core top on the L template horizontal end bottom face.
Preferably, both ends open the setting about the interior filter core, wherein interior filter core bottom is provided with the annular seat with outer filter core inside wall contact, and is provided with the holding tank that the round cross-section is right trapezoid on the annular seat top face in the interior filter core outside, be provided with the stiffener in the annular seat opening, wherein the department is provided with the sleeve pipe in the middle of the stiffener, and is provided with on the roof in the top cap and inserts the intraductal screw rod I rather than the spiro union of sleeve.
Preferably, the circular ring is provided with a through hole for the connecting rod to pass through, wherein the upper and lower two sets of limiting rings are provided with screw holes II for the connecting rod to pass through, the outer side wall of the connecting rod in the screw hole II is provided with threads screwed with the screw holes II, the bottom end of the connecting rod is further provided with a lug positioned at the bottom of the limiting ring below, the bottom end face of the lug is provided with a cross groove, and the top end of the connecting rod is not higher than the horizontal plane at the top end of the upper limiting ring.
Preferably, a sealing seat is screwed in the opening at the bottom of the cylinder I, wherein a dry filling layer extending into the opening at the bottom of the cylinder II is arranged at the top end of the sealing seat.
Preferably, waterproof sealing layers are arranged on the upper end face and the lower end face of the mounting seat, a screw rod II penetrating through the mounting seat on the outer side of the cylinder I is arranged at the bottom of the sealing plate, and a nut located at the bottom of the mounting seat is screwed on the screw rod II.
Preferably, integrative setting between mount pad, screwed pipe and the bulge, wherein in the drum II that the blow off pipe bottom passed the screwed pipe and extended to its below, and offered the mounting hole that is used for the blow off pipe to pass on the mount pad, the surrounding edge height is greater than the interval between top spacing ring and the drum I top, and wherein the interval between ring and the below spacing ring is greater than the surrounding edge height.
Preferably, the aperture of the side wall of the inner filter element is larger than that of the side wall of the outer filter element, and the outer filter element and the sealing plate are integrally arranged.
The invention has the beneficial effects that: the invention effectively enhances the installation stability of the inner filter element and the outer filter element, and reduces the probability of toppling and damaging the inner filter element in the taking-out process while facilitating the taking-out of the inner filter element.
Drawings
FIG. 1 is a schematic structural view of the present invention;
fig. 2 is a partially enlarged view of the present invention.
In the figure: 1. the filter comprises a cylinder body, 2, an end cover, 3, a water inlet pipe, 4, a water outlet pipe, 5, an L-shaped plate, 6, a filtering mechanism, 61, an inner filter element, 62, an outer filter element, 7, a filter screen, 8, a screw hole I, 9, a sealing plate, 10, a mounting seat, 11, a sewage discharge pipe, 12, a cylinder I, 13, a screw pipe, 14, a bulge, 15, a pushing mechanism, 151, a circular ring, 152, a cylinder II, 153, a limiting ring, 154, a surrounding edge, 155, a connecting rod, 156, a spring, 16, a clamping groove, 17, an annular seat, 18, an accommodating groove, 19, a reinforcing rod, 20, a sleeve, 21, a screw rod I, 22, a lug, 23, a sealing seat, 24, a dry filling layer, 25, a screw rod II, 26 and a nut.
Detailed Description
The technical scheme of the invention is further specifically described by the following embodiments and the accompanying drawings 1-2.
Example 1:
the utility model provides a multistage precision filter, includes barrel 1 and end cover 2, wherein 2 both sides of end cover are provided with inlet tube 3 and outlet pipe 4 respectively, and the top still is provided with the L template 5 of separating inlet tube 3 and outlet pipe 4 in the end cover 2, be provided with the filtering mechanism 6 that extends to in the barrel 1 on the 5 horizontal ends of L template.
Wherein through inlet tube 3 when using with liquid leading-in end cover 2 back in, L template 4 blocks leading-in liquid this moment and prevents that it from directly flowing to outlet pipe 4 department and discharging, and liquid flows into in barrel 1 after filtering mechanism 6 this moment, is discharged by outlet pipe 4 after that to the realization plays the mesh of filter effect to liquid.
The filtering mechanism 6 comprises an outer filter element 62 and an inner filter element 61, the upper end and the lower end of the inner filter element 61 are arranged in an open mode, a filter screen 7 used for supporting the outer filter element 62 is radially arranged on the outer side wall of the inner filter element 61, the aperture of the side wall of the inner filter element 61 is larger than that of the side wall of the outer filter element 62, a screw hole I8 used for accommodating the top end of the inner filter element 61 and in threaded connection with the inner filter element is arranged on the horizontal end of the L-shaped plate 5, a sealing plate 9 used for supporting the inner filter element 61 is arranged at the bottom end of the outer filter element 62, the outer filter element 62 and the sealing plate 9 are integrally arranged, an installation seat 10 is arranged at the bottom end of the sealing plate 9, waterproof sealing layers are arranged on the upper end face and the lower end face of the installation seat 10, a screw rod II25 penetrating through the installation seat 10 is arranged at the bottom of the sealing plate 9, a nut 26 positioned at the bottom of the installation seat 10 is in threaded connection with the screw rod II25, a drainage pipe 11 penetrating through the installation seat 10 is arranged on the sealing plate 9, wherein, the mounting seat 10 is provided with a mounting hole for the sewage draining pipe 11 to pass through.
The bottom in the barrel 1 is provided with a cylinder I12 penetrating through the bottom wall thereof, wherein the bottom of the mounting seat 10 is provided with a spiral tube 13 extending into the cylinder I12, and the outer side wall of the top end of the spiral tube 13 is provided with a ring of convex parts 14 screwed with the top in the cylinder I12.
The top end face of the horizontal end of the L-shaped plate 5 is of an arc-shaped recessed structure, a screw hole I8 is formed in the middle of the arc-shaped recessed portion of the horizontal end of the L-shaped plate 5, and a circle of clamping groove 16 used for containing the top end of the outer filter element 61 is further formed in the bottom end face of the horizontal end of the L-shaped plate 5.
When the filter cartridge is installed, as shown in fig. 1, the screw II25 passes through the hole on the mounting seat 10 and is screwed with the nut 26, so as to lock and fix the outer filter cartridge 62, the sealing plate 9 and the mounting seat 10 together, and simultaneously, the outer filter cartridge 62 is rotated so that the protrusion 14 and the screw tube 13 are inserted into the cylinder I12, and the protrusion 14 is screwed with the inner top of the cylinder I12 to achieve the purpose of movably fixing the outer filter cartridge 62 in the cylinder 1.
Simultaneously still make its top insert screw I8 in rather than the spiro union through rotatory interior filter core 61, and then realize fixing interior filter core in the air at end cover 2 bottom, combine end cover 2 and barrel 1 after that, in outer filter core 62 top was inserted draw-in groove 16 this moment, interior filter core 61 was inserted in outer filter core 62, and filter screen 7 is then effectively separated interior filter core 61 with outer filter core 62 to this plays the fixed action to the interval between the two, prevents that it from easily receiving external force influence and buckling that collapses.
Then in use, liquid is guided into the end cover on the right side of the L-shaped plate 5 through the water inlet pipe 3, then flows into the inner filter element 62 through the screw hole I8 for primary filtration, then is filtered again through the outer filter element 62, and finally filtered liquid is discharged through the water outlet pipe 4, so that the liquid is filtered in multiple stages.
And because there is a large amount of bulky impurity to be filtered the influence by inner filter element 61 and deposit in it when filtering, lead to floating a large amount of bulky impurity in the inner filter element 61 in the liquid, if it is not timely discharge can influence the filter effect, and general clearance mode is then taking out the clearance with it after shutting down, but this method then can influence machining efficiency, but this embodiment then only need stretch into drum I12 with the hand and open drain pipe 11, can be with depositing in the bulky impurity of inner filter element 61 bottom when blow off pipe 11 discharges, still need not to shut down the machine and can go on, thereby reach in the inner filter element 61 clearance, still can not influence its machining efficiency.
Wherein, a pushing mechanism 15 is arranged between the cylinder I12 below the bulge part 14 and the spiral tube 13, and the pushing mechanism 15 comprises a circular ring 151 arranged on the inner side wall of the cylinder I12, a cylinder II152 with the top end sleeved on the spiral tube 13 and screwed with the spiral tube is arranged in the opening of the circular ring 151, wherein, two ends of the cylinder II152 are sleeved with a limit ring 153, the bottom of the upper limit ring 153 is provided with a circle of surrounding edge 154 extending to the top end face of the circular ring 151, the height of the surrounding edge 154 is larger than the distance between the upper limit ring 153 and the top end of the cylinder I12, the distance between the circular ring 151 and the lower limit ring 153 is larger than the height of the surrounding edge 154, a connecting rod 155 with two ends connected with the upper and the lower limit rings 153 is arranged in the circular ring 151, wherein, a spring 156 is sleeved on the limit rod 155 above the circular ring 151, and a through hole for the connecting rod 155 to pass through is arranged on the circular ring 151.
When the installation is carried out, the bottom end of the screw tube 13 is inserted into the top of the cylinder II152 and is screwed, and the upper limit ring 153 is pressed by the weight of the outer filter element 62 and the installation seat 10 through the protrusion part 14, thereby driving the cylinder II152 to move downwards in the ring 151, the connecting rod 155 to move downwards in the through hole and the surrounding edge 154 to move downwards in the cylinder I12, and the upper limit ring 153 also presses the spring 156 downwards to contract, so that the projection 14 moves downwards and contacts with the inner top of the cylinder I12, finally the projection 14 is screwed with the cylinder I12 and the screw pipe 13 is screwed with the cylinder II152 by rotating the outer filter element 62, thereby locking the outer filter element 62 and the mounting seat 10 in the cylinder 1 at the top of the cylinder I12, and pushes the outer cartridge 62 upward by indirectly compressing the spring 156 by the lug 14 threaded with the cylinder I12 to prevent it from spreading, and simultaneously prevents liquid in the cylinder body 1 from seeping out through a gap between the mounting seat 10 and the top end of the cylinder I12 through a waterproof sealing layer on the end face of the mounting seat 10.
When the end cap 2 is separated from the cylinder 1, the inner filter element 61 is drawn out from the outer filter element 62, and the inner filter element 61 is rotated to rotate the top end out of the screw hole I8 to clean and replace the inner filter element, and when the outer filter element 62 is required to be replaced and cleaned, the outer filter element 62 is rotated to drive the protrusion 14 to rotate in the cylinder I12 and the coil 13 to rotate in the cylinder II152 through the sealing plate 9 and the mounting seat 10, in this embodiment, the length of the coil 13 should be greater than the height of the protrusion 14, so that when the protrusion 14 is completely rotated out of the cylinder I12, the lower half part of the coil 13 is screwed with the cylinder II152, thereby preventing the problem that the outer filter element 62 tilts due to the fact that the bottom of the mounting seat 10 loses the fixing point between the lower part of the mounting seat 10 and the pushing mechanism 15, and then the spring 156 is stretched to push the upper limit ring 153 upwards, further driving the cylinder II152 to move upwards in the ring 151, the connecting rod 155 to move upwards in the through hole and the surrounding edge 154 to move upwards in the cylinder I12, so that the upward-moving limiting ring 153 can drive the top end of the outer filter element 62 to gradually slide out of the cylinder 1 by pushing the solenoid 13, the mounting seat 10 and the sealing plate 9, then continuously rotating the outer filter element 62 to drive the solenoid 13 to be separated from the cylinder II152, and then drawing out the solenoid 13 from the cylinder 1, thereby facilitating people to lift the disassembled inner filter element 62 out of the cylinder 1, in the above process, when the cylinder II152 moves upwards to a certain extent, the ring 151 can hang the lower limiting ring 153 to prevent the cylinder II152 from continuously moving upwards, thereby indirectly and effectively preventing the bottom end of the surrounding edge 154 from sliding out of the top opening of the cylinder I12, further, when the upper limiting ring 153 is squeezed and the surrounding edge 154 and the cylinder II152 are driven to move downwards, the problem that the top end of the cylinder I12 butts against the bottom end of the surrounding edge 154 to influence the sliding of the cylinder I12 into the cylinder I12 can not occur, when the pushing mechanism 15 pushes the mounting seat 10 and the outer filter element 62 to move up to the designated position, the pushing mechanism 15 protruding from the top end of the cylinder I12 is prevented from skewing by the way that the cylinder I12 abuts against the surrounding edge 154, and at this time, the pushing mechanism 15 can play a role in fixing the mounting seat 10 and the outer filter element 62 through the screw 13, so as to prevent skewing.
Screw holes II for the connecting rods 155 to pass through are formed in the upper limiting ring 153 and the lower limiting ring 153 in the embodiment, threads screwed with the screw holes II are formed in the outer side wall of the connecting rod 155 in the screw holes II, the bottom end of the connecting rod 155 is further provided with a lug 22 located at the bottom of the lower limiting ring 153, a cross groove is formed in the bottom end face of the lug 22, and the top end of the connecting rod 155 is not higher than the top horizontal plane of the upper limiting ring 153.
Because the outer side wall of the connecting rod 155 between the upper and lower two sets of limit rings 153 is of a smooth structure, the resistance to the sliding of the connecting rod 155 in the through hole can be reduced, the connecting rod 155 passes through the screw hole II and the through hole from bottom to top when the connecting rod is installed, the connecting rod 155 is fixed by the two sets of screw holes II in a threaded manner, the lug 22 prevents the connecting rod 155 from moving upwards excessively, and the problem that the spring 156 is not prone to being skewed and twisted off in the contraction and extension process is solved due to the existence of the connecting rod 155.
A sealing seat 23 is screwed in the bottom opening of the cylinder I12, wherein the top end of the sealing seat 23 is provided with a dry filling layer 24 extending into the bottom opening of the cylinder II 152.
When the components in the cylinder I12 are not operated, the sealing seat 23 prevents foreign matters from entering the interior of the cylinder I12, which affects the safety of the components in the cylinder I12, wherein the dry filling layer 24 made of the desiccant material can improve the dryness of the interior of the cylinder I12 and prevent the interior of the cylinder I12 from being wet and affecting the service environment of the components.
Example 2:
a multistage precision filter is basically the same as that of the embodiment 1, except that an annular seat 17 contacting with the inner side wall of an outer filter core 62 is arranged at the bottom of an inner filter core 61, a circle of accommodating groove 18 with a right trapezoid cross section is arranged on the top end face of the annular seat 17 at the outer side of the inner filter core 61, a reinforcing rod 19 is arranged in an opening of the annular seat 17, a sleeve 20 is arranged in the middle of the reinforcing rod 19, and a screw I21 inserted into the sleeve 20 and screwed with the sleeve is arranged on the inner top wall of a top cover 2.
When the inner filter element 61 is installed, the top end of the inner filter element is in threaded connection with the screw hole I8, the bottom end of the inner filter element is in threaded connection with the screw rod I21 through the annular seat 17 and the reinforcing rod 19, so that the fixing effect of the upper end and the lower end of the inner filter element 61 is realized, the possibility of swinging under the influence of external force is reduced, when the end cover 2 is separated from the barrel 1, the inner filter element 61 drives the annular seat 17 to be drawn out of the outer filter element 61, as shown in FIG. 1, impurities adhered to the inner side wall of the outer filter element 62 are scraped off by the conical part outside the accommodating groove 18 and fall into the accommodating groove 18 for short-term storage, so that the purpose of preliminary cleaning effect on the outer filter element 62 can be achieved while the inner filter element 61 is separated from the outer filter element 62, and simultaneously, the top end of the outer filter element 62 is fixed by the clamping groove 16, the bottom end of the annular seat 17 is abutted against the bottom end of the outer filter element 62, and the side wall of the middle part of the filter screen 7 is abutted against the outer filter element 62, so as to limit the distance between the inner filter element 61 and the outer filter element 62, prevent that the interval between the two is undersize and influence the circulation of liquid simultaneously, still can effectively strengthen the steadiness between the two.
The present invention has been described in detail, but the above description is only a preferred embodiment of the present invention, and is not to be construed as limiting the scope of the present invention. All equivalent changes and modifications made within the scope of the present invention shall fall within the scope of the present invention.
Claims (8)
1. The utility model provides a multistage precision filter, includes barrel and end cover, wherein the end cover both sides are provided with inlet tube and outlet pipe respectively, and the top still is provided with the L template that separates inlet tube and outlet pipe in the end cover, be provided with the filtering mechanism who extends to in the barrel on the L template horizontal end, its characterized in that:
the filter mechanism comprises an outer filter element and an inner filter element, wherein a filter screen for supporting the outer filter element is radially arranged on the outer side wall of the inner filter element, a screw hole I for accommodating the top end of the inner filter element and in threaded connection with the top end of the inner filter element is formed in the horizontal end of the L-shaped plate, a sealing plate for supporting the inner filter element is arranged at the bottom end of the outer filter element, an installation seat is arranged at the bottom end of the sealing plate, and a drain pipe penetrating through the installation seat is arranged on the sealing plate;
the bottom is provided with the drum I that runs through its diapire in the barrel, and wherein the mount pad bottom is provided with the solenoid that extends to in the drum I, be provided with the bulge of top spiro union in round and the drum I on the solenoid top lateral wall, wherein be provided with pushing mechanism between drum I and the solenoid of bulge below, and pushing mechanism is including setting up the ring on drum I inside wall, be provided with the top overcoat on the solenoid rather than the drum II of spiro union in the ring opening, wherein drum II both ends all overcoat have a spacing ring, and top spacing ring bottom is provided with the surrounding edge that the round extends to on the ring top face, be provided with the connecting rod that both ends are connected with upper and lower two sets of spacing rings respectively in the ring, wherein the overcoat has the spring on the gag lever post of ring top.
2. A multistage precision filter according to claim 1, wherein: l template horizontal end top face is arc sunk structure, and wherein screw I sets up department in the middle of the arc depressed part of L template horizontal end, and still sets up the draw-in groove that the round is used for holding outer filter core top on the L template horizontal end bottom face.
3. A multistage precision filter according to claim 1, wherein: the setting is opened at both ends about the interior filter core, and wherein interior filter core bottom is provided with the annular seat with outer filter core inside wall contact, and is provided with the holding tank that the round cross-section is right trapezoid on the annular seat top face in the interior filter core outside, be provided with the stiffener in the annular seat opening, wherein the department is provided with the sleeve pipe in the middle of the stiffener, and is provided with the screw rod I who inserts the intraductal and its spiro union of cover on the roof in the top cap.
4. A multistage precision filter according to claim 1, wherein: the connecting rod connecting structure is characterized in that a through hole for the connecting rod to pass through is formed in the circular ring, screw holes II for the connecting rod to pass through are formed in the upper limiting ring and the lower limiting ring, threads connected with the screw holes II in a threaded mode are arranged on the outer side wall of the connecting rod in the screw holes II, a protruding block located at the bottom of the lower limiting ring is further arranged at the bottom end of the connecting rod, a cross groove is formed in the bottom end face of the protruding block, and the top end of the connecting rod is not higher than the horizontal plane of the top end of the upper limiting ring.
5. A multistage precision filter according to claim 1, wherein: and a sealing seat is screwed in the opening at the bottom of the cylinder I, wherein a dry filling layer extending into the opening at the bottom of the cylinder II is arranged at the top end of the sealing seat.
6. A multistage precision filter according to claim 1, wherein: and waterproof sealing layers are arranged on the upper end surface and the lower end surface of the mounting seat, a screw II penetrating through the mounting seat on the outer side of the cylinder I is arranged at the bottom of the sealing plate, and a nut positioned at the bottom of the mounting seat is screwed on the screw II.
7. A multistage precision filter according to claim 1, wherein: the mounting seat, the spiral pipe and the protruding portion are integrally arranged, the bottom end of the blow-off pipe penetrates through the spiral pipe and extends into the cylinder II below the spiral pipe, a mounting hole for the blow-off pipe to penetrate through is formed in the mounting seat, the height of the surrounding edge is larger than the distance between the upper limiting ring and the top end of the cylinder I, and the distance between the circular ring and the lower limiting ring is larger than the height of the surrounding edge.
8. A multistage precision filter according to claim 1, wherein: the aperture of the side wall of the inner filter element is larger than that of the side wall of the outer filter element, and the outer filter element and the sealing plate are integrally arranged.
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| CN202111467141.0A CN114247199B (en) | 2021-12-03 | 2021-12-03 | Multistage precision filter |
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| CN202111467141.0A CN114247199B (en) | 2021-12-03 | 2021-12-03 | Multistage precision filter |
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| CN114247199A true CN114247199A (en) | 2022-03-29 |
| CN114247199B CN114247199B (en) | 2023-11-24 |
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| CN114247199B (en) | 2023-11-24 |
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