CN111939613A - Dirty pond filter - Google Patents
Dirty pond filter Download PDFInfo
- Publication number
- CN111939613A CN111939613A CN202010867927.0A CN202010867927A CN111939613A CN 111939613 A CN111939613 A CN 111939613A CN 202010867927 A CN202010867927 A CN 202010867927A CN 111939613 A CN111939613 A CN 111939613A
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- China
- Prior art keywords
- filter screen
- pipe
- bearing
- filter
- inlet pipe
- Prior art date
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- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 73
- 239000007921 spray Substances 0.000 claims abstract description 64
- 238000005507 spraying Methods 0.000 claims abstract description 23
- 239000010865 sewage Substances 0.000 claims abstract description 22
- 239000012535 impurity Substances 0.000 claims abstract description 21
- 239000007788 liquid Substances 0.000 claims abstract description 9
- 241001270131 Agaricus moelleri Species 0.000 claims abstract description 6
- 238000007789 sealing Methods 0.000 claims description 39
- 210000004907 gland Anatomy 0.000 claims description 11
- 239000008399 tap water Substances 0.000 claims description 4
- 235000020679 tap water Nutrition 0.000 claims description 4
- 238000003466 welding Methods 0.000 claims description 4
- 230000001105 regulatory effect Effects 0.000 claims description 2
- 125000003003 spiro group Chemical group 0.000 claims 1
- 238000011010 flushing procedure Methods 0.000 abstract description 3
- 238000004140 cleaning Methods 0.000 abstract description 2
- 239000008187 granular material Substances 0.000 abstract description 2
- 238000005406 washing Methods 0.000 abstract description 2
- 238000000034 method Methods 0.000 description 5
- 238000009434 installation Methods 0.000 description 4
- 239000002245 particle Substances 0.000 description 4
- 238000007790 scraping Methods 0.000 description 4
- 239000002351 wastewater Substances 0.000 description 3
- 238000009991 scouring Methods 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000004891 communication Methods 0.000 description 1
- 238000003912 environmental pollution Methods 0.000 description 1
- 238000001914 filtration Methods 0.000 description 1
- 238000009776 industrial production Methods 0.000 description 1
- 230000007774 longterm Effects 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 239000000203 mixture Substances 0.000 description 1
- 239000013618 particulate matter Substances 0.000 description 1
- 230000003068 static effect Effects 0.000 description 1
- 239000000725 suspension Substances 0.000 description 1
- 239000002699 waste material 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
- B01D29/01—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 flat filtering elements
- B01D29/03—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 flat filtering elements self-supporting
-
- 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
- B01D29/6476—Regenerating the filter material in the filter by scrapers, brushes, nozzles, or the like, acting on the cake side of the filtering element scrapers with a rotary movement with respect to the filtering element
-
- 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
- B01D29/66—Regenerating the filter material in the filter by flushing, e.g. counter-current air-bumps
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D35/00—Filtering devices having features not specifically covered by groups B01D24/00 - B01D33/00, or for applications not specifically covered by groups B01D24/00 - B01D33/00; Auxiliary devices for filtration; Filter housing constructions
- B01D35/02—Filters adapted for location in special places, e.g. pipe-lines, pumps, stop-cocks
Landscapes
- Chemical & Material Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Filtration Of Liquid (AREA)
Abstract
A sewage pool filter comprises an inlet pipe assembly, a return pipe and a filter screen assembly; the inlet pipe assembly is connected with a return pipe, and a filter screen assembly is sleeved on the excircle of the inlet pipe assembly below the return pipe. The sewage pool filter disclosed by the invention washes the filter screen by adopting a way of washing by using return water at the outlet of the pump, manual operation is not needed, the filter screen does not need to be hung on the ground for cleaning by stopping the pump, the filter screen can be cleaned under liquid at any time as long as the filter screen is blocked, and time and labor are saved. Compared with the traditional filter screen which only filters a small section of the inlet pipe, the filter screen of the sewage pool filter leads to the liquid level from the bottommost part of the inlet pipe, the flow area is greatly increased, the filter screen can still continue to filter even if the upper part is blocked at the bottom, and the service life is longer. And the pump return flow medium is adopted for flushing, so that a water source is not required to be additionally configured, and the cost is saved. The flat-top conical flange filter screen is established to the back flow entry, but impurity in the filterable backward flow medium prevents that large granule impurity from getting into the intraductal unable hole for water spraying blowout that passes through of spray, and then blocks up the hole for water spraying.
Description
Technical Field
The invention belongs to the technical field of filters, and particularly relates to a sewage tank filter which is used for filtering sewage oil and sewage.
Background
Can produce a large amount of dirty oily sewage in modern industrial production process, often mix in these dirty oily sewage has a large amount of impurity, at waste water pump drainage in-process, block up impeller runner and cause the unable normal use of centrifugal pump in preventing too big particulate matter entering pump, often can install the impurity in the filter screen filter media additional at the inlet tube spool mouth department of pump, the impurity greasy dirt in the long-term waste water of using can adsorb on the filter screen surface, thereby block up the mesh of filter screen, cause waste water pump drainage difficulty, just need wash the filter screen this moment. The clearance of current filter screen is all to stop to carry the ground clearance with the inlet tube after the pump, because of the very long and weight of inlet tube is heavier, need just can hoist inlet tube and filter screen with the help of the crane, and the operation is very inconvenient, need stop the pump operation during the clearance, wastes time and energy, influences normal production, and filter screen punchhole and interior external surface are full of the greasy dirt, very difficult during the clearance. The pump positions with more impurities and oil stains are frequently blocked and need to be cleaned frequently, and the environment is polluted by dirt on the ground when the filter screen is cleaned. The operator is overwhelmed.
Disclosure of Invention
In order to solve the problems in the prior art, the invention provides a sewage pool filter, which adopts a method of flushing the filter screen holes by return water and rotationally scraping an inner scraper and an outer scraper under liquid to clean the filter screen, does not need to lift an inlet pipe and the filter screen, does not need to be manually cleaned, and has simple operation and no environmental pollution.
In order to achieve the purpose, the technical scheme of the invention is as follows:
a sewage pool filter comprises an inlet pipe assembly, a return pipe and a filter screen assembly; the inlet pipe assembly is connected with a return pipe, and a filter screen assembly is sleeved on the excircle of the inlet pipe assembly below the return pipe.
The inlet pipe assembly comprises an inlet flange, an inlet pipe, a water spraying bent plate, an upper bearing assembly and a limiting shaft; the top of the inlet pipe is provided with an inlet flange, the inlet pipe is connected with a pump inlet through the inlet flange, the outer circle of the inlet pipe is sleeved with a spray pipe, the top end of the spray pipe is connected with the inlet pipe through an upper sealing plate or the inlet flange, the bottom end of the spray pipe is connected with the inlet pipe through a lower sealing plate, the pipe wall of the spray pipe is provided with spray holes, the upper sealing plate or the inlet flange, the lower sealing plate, the spray pipe and the inlet pipe form a return water cavity together, the bottom of the inlet pipe is provided with a connecting plate I, a limiting shaft is arranged in the central hole of the connecting plate I and is welded on the connecting plate I, the pipe wall of the inlet pipe extending out of the lower sealing plate is hollowed to form a plurality of rib plates, hollowed spaces between adjacent rib plates form water inlets, a medium in a sewage pool, and the medium in the water return cavity flows into a sealing cavity formed by the water spray bent plate, the connecting plate I and the inlet pipe through the through holes, the water spray bent plate is provided with water spray holes which are arranged along the axial direction, and the upper bearing assembly is arranged at the upper part of the water spray pipe.
The upper bearing assembly comprises a bearing positioning sleeve, a bearing retainer ring and a nut, the bearing positioning sleeve is welded on the outer side of the pipe wall of the upper part of the spray pipe, a boss is arranged on the upper part of the bearing positioning sleeve, threads are machined on the outer circular surface of the lower part of the bearing positioning sleeve, the bearing is sleeved on the outer circular surface of the bearing positioning sleeve and is positioned through the boss and the bearing retainer ring on the bearing positioning sleeve, the nut below the bearing retainer ring is screwed on the lower part of the bearing positioning sleeve, and the whole upper bearing assembly is fixed on.
Both ends all are provided with the sealing member about the bearing, guarantee not to have impurity rainwater to get into the bearing, cause the bearing to damage.
The hole for water spraying inclines to set up on the spray pipe wall, forms reaction force when spun rivers erode the filter screen, promotes the filter screen rotation, and it is more laborsaving when the operation workman rotates the filter screen.
The blowholes are longitudinally arranged along the axis of the filter and are uniformly distributed in a staggered manner in the circumferential direction, so that the stress balance of the whole filter is ensured.
The outlet end of the backflow pipe is connected with the top of the pipe wall of the water spraying pipe in a welding mode, the inlet end of the backflow pipe is connected with an outlet of the machine pump, a tap water delivery pipe or an independent liquid source outlet independent of the machine pump, and a medium led back from the outlet of the machine pump, the tap water delivery pipe or the independent liquid source outlet independent of the machine pump is led into the water spraying pipe and the water spraying bent plate sealing cavity through the backflow pipe and is sprayed out through water spraying holes in the water spraying pipe and the water spraying bent plate to wash filter screen holes blocked by.
The inlet end of the return pipe is provided with a flat-top conical flange filter screen to prevent particles larger than the aperture of the water spray hole from entering the water spray pipe, so that the water spray hole is prevented from being blocked by the particles in the medium too large.
The filter screen assembly comprises a filter screen bracket, a filter screen, a connecting plate II, a bearing seat, a bearing sleeve and a gland; the filter screen bracket suit is on the bearing excircle, filter screen is fixed with through the screw suspension in filter screen bracket bottom, the filter screen bottom is equipped with connecting plate II, it has the punchhole to process on the connecting plate II, impurity in order to prevent to get into the filter screen piles up in the filter screen, be equipped with the bearing frame on the centre bore of connecting plate II, install the bearing housing in the bearing frame, the tip has buckled the gland under the bearing housing, the gland is fixed on the bearing frame by the screw, spacing axle is equipped with to the bearing housing inner bore cover, the bearing housing is as the locating part of whole filter with the bearing in the upper bearing subassembly together, damage because of rocking too big when preventing the filter screen from scouring the filth.
The filter screen bracket is of a split structure or an integral structure, and the filter screen bracket of the split structure can prevent inconvenience in installation caused by overlong total length of the filter.
When the top end of the spray pipe is connected with the inlet pipe through the upper sealing plate, the top of the filter screen bracket is provided with a locking plate, so that the filter screen bracket is convenient to transport, the locking plate is embedded into a groove on the bearing positioning sleeve in the transportation process, the filter screen assembly is fixed, the filter screen assembly is ensured not to move axially, the locking plate is withdrawn from the groove of the bearing positioning sleeve after being put into use, and the filter screen assembly can rotate freely; when the top end of the spray pipe is connected with an inlet pipe through an inlet flange, a limiting bolt arranged on the inlet flange is screwed into a threaded hole of the filter screen bracket or is propped against the top of the filter screen bracket to fix the filter screen assembly.
The outer circle of the filter screen bracket is provided with a handle, a driven gear, a driven chain wheel or a driven belt pulley, when the outer circle of the filter screen bracket is provided with the driven gear, the driven gear is meshed with the driving gear, the driving gear is arranged on an output shaft of the motor, and the motor is fixed on the ground at the edge of the sewage tank; when the outer circle of the filter screen bracket is provided with a driven chain wheel, the driven chain wheel is connected with a driving chain wheel through a chain, and the driving chain wheel is arranged on an output shaft of the motor; when the excircle of the filter screen bracket is provided with a driven belt pulley, the driven belt pulley is connected with a driving belt pulley through a belt, and the driving belt pulley is arranged on an output shaft of a motor; the motor is a common motor, a speed reducing motor or a variable-frequency speed regulating motor.
The inlet tube excircle is provided with interior scraper blade, and interior scraper blade is cavity bent plate formula structure, can strike off filter screen inner wall impurity and can not hinder the medium to get into the inlet tube entry again.
The outside cover of filter screen bottom is equipped with outer scraper blade, and fixes at spacing axle bottom by the bolt and is linked together with inlet tube subassembly.
The invention has the beneficial effects that:
(1) the sewage pool filter disclosed by the invention washes the filter screen by adopting a way of washing by using return water at the outlet of the pump, manual operation is not needed, the filter screen does not need to be hung on the ground for cleaning by stopping the pump, the filter screen can be cleaned under liquid at any time as long as the filter screen is blocked, and time and labor are saved.
(2) Compared with the traditional filter screen which only filters a small section of the inlet pipe, the filter screen of the sewage pool filter leads to the liquid level from the bottommost part of the inlet pipe, the flow area is greatly increased, the filter screen can still continue to filter even if the upper part is blocked at the bottom, and the service life is longer.
(3) And the pump return flow medium is adopted for flushing, so that a water source is not required to be additionally configured, and the cost is saved.
(4) The flat-top conical flange filter screen is established to the back flow entry, but impurity in the filterable backward flow medium prevents that large granule impurity from getting into the intraductal unable hole for water spraying blowout that passes through of spray, and then blocks up the hole for water spraying.
(5) The inner scraping plate is arranged at the bottom of the filter, so that impurities in the filter screen can be scraped and cleaned, and the filter screen can be supported to a certain extent.
(6) The filter screen is provided with the inner scraper plate and the outer scraper plate to scrape sundries on the covering surface of the filter screen, and then the filter screen is washed by a backflow medium, so that the filter screen is more thorough to clean and has no dead angle.
(7) Sealing pieces are arranged at the upper end and the lower end of the bearing, so that impurity rainwater is prevented from entering the bearing and damaging the bearing.
(8) The filter screen bracket is of a split type, so that the filter which is several meters long is not required to be sleeved upwards from the bottom of the filter during installation, and time and labor are saved.
(9) The water spray bent plate is buckled outside the bottom rib plate of the inlet pipe, and water spray holes are processed on the water spray bent plate, so that a filter screen at the bottom of the filter can be cleaned, and the strength of the bottom rib plate can be enhanced.
Drawings
FIG. 1 is a schematic view showing a structure of a sump filter according to example 1 of the present invention;
FIG. 2 is a schematic sectional view taken along line A-A of a sump filter according to example 1 of the present invention;
FIG. 3 is an enlarged schematic view at B of FIG. 1 according to embodiment 1 of the present invention;
FIG. 4 is an enlarged schematic view at C of FIG. 1 according to embodiment 1 of the present invention;
FIG. 5 is an axial cross-sectional view of a sprinkler pipe of the sump filter according to example 1 of the present invention;
FIG. 6 is a radial cross-sectional view of a sprinkler pipe of the sump filter according to example 1 of the present invention;
FIG. 7 is a schematic view showing a structure of a sump filter according to example 2 of the present invention;
FIG. 8 is an enlarged schematic view at D of FIG. 7 in accordance with embodiment 2 of the present invention;
FIG. 9 is a schematic view showing the structure of a sump filter according to example 3 of the present invention;
1-a return pipe, 2-an inlet pipe component, 21-an inlet flange, 22-an inlet pipe, 23-an upper sealing plate, 24-a water spray pipe, 25-an upper bearing component, 251-a bearing positioning sleeve, 252-a bearing, 253-a bearing retainer ring, 254-a nut, 26-a lower sealing plate, 27-a limiting shaft, 28-a connecting plate I, 29-a water spray bent plate, 3-a locking plate, 4-a filter screen component, 41-a filter screen bracket, 42-a sealing component, 43-a filter screen, 44-a connecting plate II, 45-a bearing seat, 46-a bearing sleeve, 47-a gland, 5-an inner scraper, 6-an outer scraper, 7-a flat-top conical flange filter screen, 8-a driven gear, 9-a motor and 10-a driving gear, 11-limit bolt.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments.
In the description of the present invention, it is to be understood that the terms "longitudinal", "lateral", "vertical", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc., indicate orientations or positional relationships based on those shown in the drawings, and are used only for convenience in describing the present invention and for simplicity in description, and do not indicate or imply that the device or element being referred to must have a particular orientation, be constructed and operated in a particular orientation, and thus, should not be construed as limiting the present invention. Furthermore, the terms "first" and "second" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance.
In the description of the present invention, unless otherwise specified and limited, it is to be noted that the terms "mounted," "connected," and "connected" are to be interpreted broadly, and may be, for example, a mechanical connection or an electrical connection, a communication between two elements, a direct connection, or an indirect connection via an intermediate medium, and specific meanings of the terms may be understood by those skilled in the art according to specific situations.
Example 1
As shown in fig. 1 to 6, a sewage tank filter includes an inlet pipe assembly 2, a return pipe 1 and a filter screen assembly 4; the inlet pipe assembly 2 is connected with a return pipe 1, and a filter screen assembly 4 is sleeved on the excircle of the inlet pipe assembly 2 below the return pipe 1.
The inlet pipe assembly 2 comprises an inlet flange 21, an inlet pipe 22, a water spray pipe 24, a water spray bent plate 29, an upper bearing assembly 25 and a limiting shaft 27; the top of the inlet pipe 22 is welded with an inlet flange 21, the inlet pipe 22 is connected with a pump inlet through the inlet flange 21, the outer circle of the inlet pipe 22 is sleeved with a spray pipe 24, two ends of the spray pipe 24 are respectively welded with an upper sealing plate 23 and a lower sealing plate 26, the upper sealing plate 23 and the lower sealing plate 26 are welded with the outer wall of the inlet pipe 22, spray holes are processed on the pipe wall of the spray pipe 24, the upper sealing plate 23, the lower sealing plate 26, the spray pipe 24 and the inlet pipe 22 form a water return cavity together, the bottom of the inlet pipe 22 is provided with a connecting plate I28, a limiting shaft 27 is arranged in the central hole of the connecting plate I28, the limiting shaft 27 is welded on the connecting plate I28, the pipe wall of the part of the inlet pipe 22 extending out of the lower sealing plate 26 is hollowed to form a plurality of rib plates, a water inlet is formed by the hollowed, the bottom end of the water spray bent plate 29 is connected with the connecting plate I28 in a welding mode, through holes are formed in the corresponding positions of the lower sealing plate 26 and the rib plate, so that media can flow into a sealing cavity formed by the water spray bent plate 29, the connecting plate I28 and the inlet pipe 22 through the through holes, water spray holes are formed in the water spray bent plate 29 and are arranged in the axial direction, and the upper bearing assembly 25 is arranged on the upper portion of the water spray pipe 24.
The upper bearing assembly 25 comprises a bearing positioning sleeve 251, a bearing 252, a bearing retainer 253 and a nut 254, the bearing positioning sleeve 251 is welded on the outer side of the upper pipe wall of the spray pipe 24, a boss is arranged at the upper part of the bearing positioning sleeve 251, a thread is processed on the outer circular surface of the lower part of the bearing positioning sleeve 251, the bearing 252 is sleeved on the outer circular surface of the bearing positioning sleeve 251, the bearing 252 is positioned through the boss on the bearing positioning sleeve 251 and the bearing retainer 253, the nut 254 positioned below the bearing retainer 253 is screwed at the lower part of the bearing positioning sleeve 251, and the whole upper bearing assembly 25 is fixed on.
The upper end and the lower end of the bearing 252 are provided with sealing elements 42, one sealing element 42 is located between the inner hole surface of the filter screen bracket 41 and the outer circular surface of the boss of the bearing positioning sleeve 251, and the other sealing element 42 is located between the inner hole surface of the filter screen bracket 41 and the outer circular surface of the bearing retainer ring 253, so that impurity rainwater cannot enter the bearing 252, and the bearing 252 is prevented from being damaged.
The blowholes are horizontally and obliquely arranged on the pipe wall of the spray pipe 24, and the sprayed water flow forms a reaction force when scouring the filter screen 43 to push the filter screen 43 to rotate, so that the labor is saved when an operator rotates the filter screen 43.
The blowholes are longitudinally arranged along the axis of the filter and are uniformly distributed in a staggered manner in the circumferential direction, so that the stress balance of the whole filter is ensured.
The outlet end of the return pipe 1 is connected with the top of the pipe wall of the spray pipe 24 in a welding way, the inlet end of the return pipe 1 is connected with the outlet of the machine pump, the return pipe 1 guides the medium led back from the outlet of the pump into the spray pipe 24 and the sealing cavity of the water spray bent plate 29, and the medium is sprayed out through the spray holes on the spray pipe 24 and the water spray bent plate 29 to wash the meshes of the filter screen 43 blocked by impurities.
The inlet end of the return pipe 1 is provided with a flat-top conical flange filter screen 7 to prevent particles larger than the aperture of the water spray hole from entering the water spray pipe 24, so as to prevent the water spray hole from being blocked by the particles in the medium too large.
The filter screen assembly 4 comprises a filter screen bracket 41, a filter screen 43, a connecting plate II 44, a bearing seat 45, a bearing sleeve 46 and a gland 47; the filter screen bracket 41 is sleeved on the excircle of the bearing 252, the bottom of the filter screen bracket 41 is fixedly provided with a filter screen 43 in a hanging manner through a screw, the bottom of the filter screen 43 is provided with a connecting plate II 44, the connecting plate II 44 is provided with a hole to prevent impurities entering the filter screen 43 from accumulating in the filter screen 43, a bearing seat 45 is arranged in a center hole of the connecting plate II 44, a bearing sleeve 46 is arranged in the bearing seat 45, the lower end part of the bearing sleeve 46 is buckled with a gland 47, the gland 47 is fixed on the bearing seat 45 through a screw, a limiting shaft 27 is sleeved in an inner hole of the bearing sleeve 46, the bearing sleeve 46 and a bearing 252 in the upper bearing assembly 25 are used as a positioning part of the whole filter together to prevent the filter screen 43 from being damaged due to large shaking when the filter screen 43 washes dirt blocked in the mesh by a backflow medium, the excircle of the filter screen bracket 41, ensuring that the water flow sprayed from the water spray holes can wash the whole circle of the filter screen 43.
The filter screen bracket 41 has a split structure, and the filter screen bracket 41 with the split structure can prevent inconvenience in installation due to an excessively long filter total length.
Locking plate 3 is established at filter screen bracket 41 top, for convenient transportation, in the recess on with locking plate 3 embedding bearing position sleeve 251 in the transportation, fixed filter screen subassembly 4 guarantees that it can not be followed the axial float, and locking plate 3 withdraws from bearing position sleeve 251 recess after putting into use, but filter screen subassembly 4 free rotation.
The excircle symmetry of inlet tube 22 is provided with interior scraper blade 5, and interior scraper blade 5 is located the below of lower seal plate 26, and interior scraper blade 5 is the curved plate structure of cavity, and interior scraper blade 5 one end is by the screw fastening on the inlet tube 22 pipe wall, and the other end is by the screw fastening on inlet tube 22 pipe wall or connecting plate I28, can strike off filter screen 43 inner wall impurity and can not hinder the medium entering inlet tube 22 entry again.
The outer scraper 6 is sleeved outside the bottom of the filter screen 43 and is fixed at the bottom of the limiting shaft 27 by bolts to be connected with the inlet pipe assembly 2 into a whole.
A method of using a sump filter, comprising the steps of:
step 1, installing a filter, sleeving a sealing element 42 on a bearing positioning sleeve 251 welded on a spray pipe 2, sleeving a bearing 252 on the outer circle of the bearing positioning sleeve 251, pushing a bearing retainer ring 253 below the bearing 252, screwing a nut 254, fixing the bearing 252 and the bearing retainer ring 253 on the bearing positioning sleeve 251, sleeving another sealing element 42 on the bearing retainer ring 253, and completing the installation of an upper bearing assembly 25; two inner scrapers 5 are symmetrically arranged at the bottom of the pipe wall of the inlet pipe 22 and fixed through bolts; the split filter screen bracket 41 is sleeved on the outer circle of the bearing 252 and connected into a whole by bolts; installing a bearing sleeve 46 in a bearing seat 45, and connecting a gland 47 and the bearing seat 45 into a whole by using a screw; the filter screen 43 is sleeved from the bottom of the inlet pipe 22 and hung at the bottom of the filter screen bracket 41 by a screw, and at the moment, the limit shaft 27 is inserted into the central hole of the bearing sleeve 46; the outer scraping plate 6 is sleeved at the bottom of the filter screen 43, and the outer scraping plate 6 is fixed on the bottom end face of the limiting shaft 27 through bolts.
Step 2, when the pump normally works, the filter screen 43 is static, the valve at the outlet of the pump is opened, the valve arranged at the inlet of the return pipe 1 is closed, the medium in the sewage pool is filtered by the filter screen 43 and enters the filter screen 43, enters the inlet pipe 22 through the water inlet and is sucked into the pump, and then is discharged from the outlet of the pump and enters the next flow, after the pump runs for a period of time, oil stains and impurities in the sewage pool are hung on the inner surface and the outer surface of the filter screen 43 and holes, so that meshes are blocked, the medium cannot normally enter the water inlet of the inlet pipe 22 through the meshes, the water flow at the outlet of the pump; at this moment, close pump outlet valve, open the valve on back flow 1 and the pump connecting line, pump outlet medium passes through back flow 1 and flows back to spray pipe 24 and from the hole for water spraying blowout, wash out the mesh of filter screen 43, promote the handle, drive filter screen 43 circumferential direction through filter screen bracket 41, guarantee that whole filter screen 43 circumferencial direction homoenergetic is washed out by hole for water spraying spun medium, interior scraper blade 5 and outer scraper blade 6 are scraped the interior outer surface impurity of rotatory filter screen 43 down, in order to make things convenient for the backward flow water to wash out the mesh of filter screen 43.
Example 2
As shown in fig. 7 and 8, the embodiment 2 is different from the embodiment 1 in that the filter screen bracket 41 is a single body, when the driven gear 8 is provided on the outer circumference thereof, the driven gear 8 is engaged with the driving gear 10, the driving gear 10 is installed on the output shaft of the motor 9, and the motor 9 is fixed on the floor along the edge of the sewage tank.
The upper end and the lower end of the bearing 252 are provided with sealing elements 42, one sealing element 42 is located between the inner hole surface of the filter screen bracket 41 and the boss outer circular surface of the bearing positioning sleeve 251, and the other sealing element 42 is located between the inner hole surface of the filter screen bracket 41 and the outer surface of the nut 254, so that impurity rainwater cannot enter the bearing 252 to damage the bearing 252.
When the filter screen 43 is cleaned, the motor 9 is started, the output shaft of the motor 9 drives the driving gear 10 to rotate, the driving gear 10 and the driven gear 8 are meshed to drive the filter screen bracket 41 to rotate, and then the filter screen 43 arranged at the bottom of the filter screen bracket 41 is driven to rotate together.
Example 3
The difference between the embodiment 3 and the embodiment 1 is that the top end of the spray pipe 24 is connected with the inlet pipe 22 through the inlet flange 21, and the inlet flange 21, the lower sealing plate 26, the spray pipe 24 and the inlet pipe 22 form a water return cavity together; the limiting bolt 11 arranged on the inlet flange 21 is pressed against the top of the filter screen bracket 41, as shown in fig. 9.
Claims (10)
1. A sewage pool filter is characterized by comprising an inlet pipe assembly, a return pipe and a filter screen assembly; the inlet pipe assembly is connected with a return pipe, and a filter screen assembly is sleeved on the excircle of the inlet pipe assembly below the return pipe.
2. The sump filter of claim 1, wherein: the inlet pipe assembly comprises an inlet flange, an inlet pipe, a water spraying bent plate, an upper bearing assembly and a limiting shaft; the top of the inlet pipe is provided with an inlet flange, the inlet pipe is connected with a pump inlet through the inlet flange, the outer circle of the inlet pipe is sleeved with a spray pipe, the top end of the spray pipe is connected with the inlet pipe through an upper sealing plate or the inlet flange, the bottom end of the spray pipe is connected with the inlet pipe through a lower sealing plate, the pipe wall of the spray pipe is provided with spray holes, the upper sealing plate or the inlet flange, the lower sealing plate, the spray pipe and the inlet pipe form a return water cavity together, the bottom of the inlet pipe is provided with a connecting plate I, a limiting shaft is arranged in the central hole of the connecting plate I and is welded on the connecting plate I, the pipe wall of the inlet pipe extending out of the lower sealing plate is hollowed to form a plurality of rib plates, hollowed spaces between adjacent rib plates form water inlets, a medium in a sewage pool, and the medium in the water return cavity flows into a sealing cavity formed by the water spray bent plate, the connecting plate I and the inlet pipe through the through holes, the water spray bent plate is provided with water spray holes which are arranged along the axial direction, and the upper bearing assembly is arranged at the upper part of the water spray pipe.
3. A sump filter according to claim 2, wherein: the upper bearing assembly comprises a bearing positioning sleeve, a bearing retainer ring and a nut, the bearing positioning sleeve is welded on the outer side of the pipe wall of the upper part of the spray pipe, a boss is arranged on the upper part of the bearing positioning sleeve, threads are machined on the outer circular surface of the lower part of the bearing positioning sleeve, the bearing is sleeved on the outer circular surface of the bearing positioning sleeve and positioned through the boss and the bearing retainer ring on the bearing positioning sleeve, the nut below the bearing retainer ring is screwed on the lower part of the bearing positioning sleeve, the whole upper bearing assembly is fixed on the upper part of the whole sewage pool filter, and.
4. A sump filter according to claim 2, wherein: the water spraying holes are obliquely arranged on the pipe wall of the water spraying pipe; the water spray holes are longitudinally arranged along the axis of the filter and are uniformly distributed in a staggered manner in the circumferential direction.
5. A sump filter according to claim 2, wherein: the outlet end of the backflow pipe is connected with the top of the pipe wall of the water spraying pipe in a welding mode, the inlet end of the backflow pipe is connected with an outlet of the local pump, a tap water delivery pipe or an independent liquid source outlet independent of the local pump, and a medium led back from the outlet of the local pump, the tap water delivery pipe or the independent liquid source outlet independent of the local pump is led into the water spraying pipe and the water spraying bent plate sealing cavity through the backflow pipe and is sprayed out through water spraying holes in the water spraying pipe and the water spraying bent plate to wash filter screen holes in the filter screen assembly.
6. A sump filter according to claim 2, wherein: the excircle of the inlet pipe is provided with an inner scraper which is of a hollow bent plate structure.
7. The sump filter of claim 1, wherein: the inlet end of the return pipe is provided with a flat-top conical flange filter screen.
8. A sump filter according to claim 1 or 2, wherein: the filter screen assembly comprises a filter screen bracket, a filter screen, a connecting plate II, a bearing seat, a bearing sleeve and a gland; the filter screen bracket is sleeved on the bearing excircle, a filter screen is fixedly suspended at the bottom of the filter screen bracket through a screw, a connecting plate II is arranged at the bottom of the filter screen, holes are formed in the connecting plate II to prevent impurities entering the filter screen from accumulating in the filter screen, a bearing seat is arranged in a central hole of the connecting plate II, a bearing sleeve is arranged in the bearing seat, a gland is buckled at the lower end of the bearing sleeve, the gland is fixed on the bearing seat through a screw, and a limiting shaft is sleeved in the hole in the bearing sleeve; the filter screen bracket is of a split structure or an integral structure; locking plate or spacing bolt are established at filter screen bracket top, in the recess on the lock plate embedding bearing position sleeve, perhaps support the bolt at filter screen bracket top or spiro union in the threaded hole at filter screen bracket top with the bolt in the transportation, fixed filter screen subassembly is in order to prevent its drunkenness.
9. The sump filter of claim 8, wherein: the outside cover of filter screen bottom is equipped with outer scraper blade, and fixes at spacing axle bottom by the bolt and is linked together with inlet tube subassembly.
10. The sump filter of claim 8, wherein: the outer circle of the filter screen bracket is provided with a handle, a driven gear, a driven chain wheel or a driven belt pulley, when the outer circle of the filter screen bracket is provided with the driven gear, the driven gear is meshed with the driving gear, the driving gear is arranged on an output shaft of the motor, and the motor is fixed on the ground at the edge of the sewage tank; when the outer circle of the filter screen bracket is provided with a driven chain wheel, the driven chain wheel is connected with a driving chain wheel through a chain, and the driving chain wheel is arranged on an output shaft of the motor; when the excircle of the filter screen bracket is provided with a driven belt pulley, the driven belt pulley is connected with a driving belt pulley through a belt, and the driving belt pulley is arranged on an output shaft of a motor; the motor is a common motor, a speed reducing motor or a variable-frequency speed regulating motor.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010867927.0A CN111939613A (en) | 2020-08-26 | 2020-08-26 | Dirty pond filter |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010867927.0A CN111939613A (en) | 2020-08-26 | 2020-08-26 | Dirty pond filter |
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| Publication Number | Publication Date |
|---|---|
| CN111939613A true CN111939613A (en) | 2020-11-17 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202010867927.0A Pending CN111939613A (en) | 2020-08-26 | 2020-08-26 | Dirty pond filter |
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| CN (1) | CN111939613A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113213595A (en) * | 2021-06-08 | 2021-08-06 | 山西齐盛科技有限公司 | Electrochemical water treatment device convenient to clean |
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2020
- 2020-08-26 CN CN202010867927.0A patent/CN111939613A/en active Pending
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113213595A (en) * | 2021-06-08 | 2021-08-06 | 山西齐盛科技有限公司 | Electrochemical water treatment device convenient to clean |
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