CN111054115A - Self-cleaning piston type filter and filtering system - Google Patents
Self-cleaning piston type filter and filtering system Download PDFInfo
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- CN111054115A CN111054115A CN201911274835.5A CN201911274835A CN111054115A CN 111054115 A CN111054115 A CN 111054115A CN 201911274835 A CN201911274835 A CN 201911274835A CN 111054115 A CN111054115 A CN 111054115A
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- cleaning
- self
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- 238000001914 filtration Methods 0.000 title claims abstract description 73
- 238000004140 cleaning Methods 0.000 title claims abstract description 71
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 118
- 239000010865 sewage Substances 0.000 claims abstract description 42
- 238000007790 scraping Methods 0.000 claims abstract description 23
- NJPPVKZQTLUDBO-UHFFFAOYSA-N novaluron Chemical compound C1=C(Cl)C(OC(F)(F)C(OC(F)(F)F)F)=CC=C1NC(=O)NC(=O)C1=C(F)C=CC=C1F NJPPVKZQTLUDBO-UHFFFAOYSA-N 0.000 claims abstract description 12
- 238000010030 laminating Methods 0.000 claims abstract description 5
- 230000007704 transition Effects 0.000 claims description 10
- 238000007789 sealing Methods 0.000 claims description 6
- 238000000034 method Methods 0.000 description 6
- 239000011148 porous material Substances 0.000 description 5
- 238000010586 diagram Methods 0.000 description 4
- 230000009286 beneficial effect Effects 0.000 description 3
- 239000002245 particle Substances 0.000 description 2
- 238000000746 purification Methods 0.000 description 2
- 239000008213 purified water Substances 0.000 description 2
- 230000000087 stabilizing effect Effects 0.000 description 2
- 230000006835 compression Effects 0.000 description 1
- 238000007906 compression Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 230000000737 periodic effect Effects 0.000 description 1
- 238000007493 shaping process Methods 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
- B01D29/35—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
- B01D29/60—Filters with filtering elements stationary during filtration, e.g. pressure or suction filters, not covered by groups B01D24/00 - B01D27/00; Filtering elements therefor integrally combined with devices for controlling the filtration
- B01D29/606—Filters with filtering elements stationary during filtration, e.g. pressure or suction filters, not covered by groups B01D24/00 - B01D27/00; Filtering elements therefor integrally combined with devices for controlling the filtration by pressure measuring
-
- 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
- B01D29/76—Handling the filter cake in the filter for purposes other than for regenerating
-
- 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
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- Chemical & Material Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Filtration Of Liquid (AREA)
Abstract
The invention discloses a self-cleaning piston type filter and a filtering system, and relates to the technical field of water quality treatment, wherein the self-cleaning piston type filter comprises a filtering pipe, one end of the filtering pipe is provided with a water inlet, the other end of the filtering pipe is provided with a sewage discharge outlet, the side wall of the filtering pipe is provided with a filtering net, the filtering net is provided with a plurality of filtering holes, the filtering pipe is also provided with a water outlet, and the water outlet is communicated with the filtering net; and install piston assembly in the filter tube, piston assembly includes clean piston, first pedestal and first elastic component, first pedestal is fixed on the filter tube, first elastic component one end supports and presses on the clean piston, the first elastic component other end supports and presses first pedestal, clean piston is including scraping the wall, scrape the wall with the filter screen laminating, clean piston installs the relief valve. The cleaning piston can effectively scrape oil stain residues on the filter screen, and the self-cleaning of the filter screen is effectively realized.
Description
Technical Field
The invention relates to the technical field of water quality treatment, in particular to a self-cleaning piston type filter and a filtering system.
Background
In the process of implementing the invention, the inventor finds that at least the following problems exist in the prior art, at present, when a filter screen on the market is cleaned, two modes of manual cleaning and electric cleaning exist, automatic cleaning cannot be realized, and the manual cleaning type filter generally needs manual periodic cleaning due to the fact that the manual cleaning is needed, cleaning is carried out only after a user finds that the manual cleaning is easy to forget, the filter screen is blocked, the filter screen blocked for a long time can influence the filtering effect, even the service life of the filter screen is shortened, the price of the electric cleaning type filter is high, a socket and the like need to be added near the filter, and installation is complex.
Disclosure of Invention
The present invention is directed to solving, at least to some extent, one of the above-mentioned problems in the prior art. Therefore, the embodiment of the invention provides a self-cleaning piston type filter, which can automatically clean a filter hole through water pressure without manual or electric self-cleaning.
The embodiment of the invention also provides a filtering system.
According to an embodiment of the first aspect of the invention, a self-cleaning piston type filter is provided, which comprises a filter pipe, wherein one end of the filter pipe is provided with a water inlet, the other end of the filter pipe is provided with a sewage discharge outlet, a filter screen is arranged on the side wall of the filter pipe, the filter screen is provided with a plurality of filter holes, and the filter pipe is also provided with a water outlet which is communicated with the filter screen; and install piston assembly in the filter tube, piston assembly includes clean piston, first pedestal and first elastic component, first pedestal is fixed on the filter tube, first elastic component one end supports and presses on the clean piston, the first elastic component other end supports and presses first pedestal, clean piston is including scraping the wall, scrape the wall with the filter screen laminating, clean piston installs the relief valve.
The self-cleaning piston type filter at least has the following beneficial effects: through designing piston assembly, if the filtration pore on the filter screen takes place to block up, then the water pressure of filter tube inlet department can increase, and promote clean piston and remove towards sewage disposal department, clean piston other end provides corresponding holding power through first elastic component, clean piston removes the in-process, can correspondingly expose more filtration pore supplies rivers and pass through, when water pressure increases to certain pressure, install the relief valve on clean piston and open, afterwards, clean piston resets towards water inlet department, clean piston is at the in-process that resets, scrape the wall with the filter screen laminating and can scrape the greasy dirt residue on the filter screen, the greasy dirt residue is discharged from the sewage disposal mouth, behind the filtration pore mediation on the filter screen, the rivers flow direction delivery port of water inlet, when the pressure of water inlet reaches balanced, the relief valve is closed. The movable cleaning piston can effectively scrape oil stain residues on the filter screen and effectively realize self-cleaning of the filter screen.
According to an embodiment of the first aspect of the present invention, the cleaning piston further includes a piston body and a piston seat, the piston body is disposed toward the water inlet, the piston body is provided with a sewage discharge hole, the scraping wall is located between the piston body and the piston seat, the pressure release valve includes a sewage discharge plug and a second elastic member, the sewage discharge plug is pressed against the sewage discharge hole, one end of the second elastic member is pressed against the sewage discharge plug, and the other end of the second elastic member is pressed against one side of the piston seat.
According to an embodiment of the first aspect of the present invention, a limiting ring is disposed in the filter pipe, and the limiting ring and the first seat are disposed on two sides of the cleaning piston, respectively.
According to an embodiment of the first aspect of the present invention, the piston body is in a cone shape, and the inner side recess of the piston body is arranged towards the water inlet.
According to an embodiment of the first aspect of the present invention, the piston body is integrally formed with the scraping wall, and the scraping edge is formed between the piston body and the scraping wall.
According to an embodiment of the first aspect of the present invention, a first sealing ring is disposed between the piston seat and the scraping wall, and a second sealing ring is disposed in the blowoff hole of the piston body.
According to an embodiment of the first aspect of the present invention, the piston seat body is hollow, and a first spring retaining ring for limiting the radial movement of the first elastic member is disposed on one side of the piston seat body, and a second spring retaining ring for limiting the radial movement of the second elastic member is disposed on the other side of the piston seat body.
According to the embodiment of the first aspect of the invention, the middle part of the filter pipe is provided with an annular transition pipe section, the filter screen is positioned in the transition pipe section, the water outlet is arranged on the transition pipe section, and the water outlet is connected with a water outlet pipe.
According to an embodiment of a second aspect of the invention, there is provided a filtration system comprising a self-cleaning piston filter according to an embodiment of the first aspect of the invention; the upper part of the water tank is communicated with the water outlet through a pipeline, the bottom of the water tank is communicated with the water inlet through a pipeline, the water outlet is provided with a water pump, and the sewage outlet is connected with a sewage discharge pipe.
The filtering system at least has the following beneficial effects: sewage enters the self-cleaning piston type filter from the water tank to be filtered, the filtered purified water is output from the water outlet and is conveyed to the water return tank by the water pump to form a circulating system, and in addition, the filtered oil stain residues can be discharged from the sewage discharge outlet.
According to an embodiment of a third aspect of the invention, a filtering system is provided, which comprises the self-cleaning piston type filter of the embodiment of the first aspect of the invention, the water inlet is connected with a water inlet pipe, the sewage outlet is connected with a sewage discharge pipe, the water inlet pipe is provided with a pressure stabilizing valve, and the sewage discharge pipe is provided with a check valve.
The filtering system at least has the following beneficial effects: water flow enters the self-cleaning piston type filter through the water inlet pipe to be filtered, filtered purified water is output from the water outlet to be used by a user, and filtered dirt particles and the like are discharged from the sewage outlet.
Drawings
In order to more clearly illustrate the technical solution in the embodiments of the present invention, the drawings used in the description of the embodiments will be briefly described below. It is clear that the described figures are only some embodiments of the invention, not all embodiments, and that a person skilled in the art can also derive other designs and figures from them without inventive effort.
FIG. 1 is a perspective view of an embodiment of a first aspect of the present invention;
FIG. 2 is a perspective cutaway view of an embodiment of a second aspect of the present invention;
FIG. 3 is a cutaway view of an embodiment of the first aspect of the present invention;
FIG. 4 is a cut-away perspective view of a cleaning piston in an embodiment of a first aspect of the invention;
FIG. 5 is a cut-away view of a filter tube in an embodiment of the first aspect of the invention;
FIG. 6 is a schematic structural diagram of an initial state of an embodiment of the first aspect of the present invention;
FIG. 7 is a schematic structural diagram of a filtration state in an embodiment of the first aspect of the present invention;
FIG. 8 is a schematic structural view showing a filtration state in which a part of the filtration pores is clogged, according to the embodiment of the first aspect of the present invention;
FIG. 9 is a schematic structural view showing a filtering state in which a part of the filter holes are clogged and the cleaning piston is moved downward in accordance with the embodiment of the first aspect of the present invention;
FIG. 10 is a schematic configuration of a filtration state in which all the filtration pores are clogged according to the embodiment of the first aspect of the present invention;
fig. 11 is a schematic structural view of a blowdown state of the embodiment of the first aspect of the present invention, in which the pressure relief valve is opened;
fig. 12 is a schematic structural view of a blowdown phase of an embodiment of the first aspect of the present invention, wherein the cleaning piston is reset;
FIG. 13 is a schematic structural diagram of an embodiment of the second aspect of the present invention;
fig. 14 is a schematic structural diagram of an embodiment of the third aspect of the present invention.
Detailed Description
Reference will now be made in detail to the present preferred embodiments of the present invention, examples of which are illustrated in the accompanying drawings, wherein like reference numerals refer to like elements throughout.
In the description of the present invention, it is to be understood that directional descriptions, such as terms "central", "longitudinal", "lateral", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", etc., refer to the directional or positional relationships illustrated in the drawings, which are used for convenience in describing the present invention and simplifying the description, but do not indicate or imply that the device or element being referred to must have a particular orientation, be constructed in a particular orientation, and be operated, and thus should not be construed as limiting the present invention. Furthermore, if the terms "first" and "second" are used, they are used for distinguishing technical features, and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated or implicitly indicating the precedence of the technical features indicated.
In the description of the present invention, "a plurality" means one or more, "a plurality" means two or more, "more than", "less than", "more than" and the like are understood as excluding the present number, "more than", "less than", "more than" and the like are understood as including the present number, unless specifically limited otherwise.
In the description of the present invention, unless otherwise explicitly limited, terms such as "disposed," "mounted," "connected," and "fixed" should be understood in a broad sense, and those skilled in the art can reasonably determine the specific meaning of the above terms in the present invention by combining the specific contents of the technical solutions.
In the description of the present invention, unless otherwise expressly limited, a first feature "on" or "under" a second feature may be directly contacting the first feature or indirectly contacting the second feature through intervening media. Also, a first feature may be "on" or "over" or "on" a second feature, and may be directly on or obliquely above the second feature, or may simply mean that the first feature is at a higher level than the second feature. A first feature being "under" or "beneath" a second feature may be directly under or obliquely under the second feature, or simply indicate that the first feature is at a lesser level than the second feature.
Referring to fig. 1 to 5, a self-cleaning piston type filter includes a filter tube 10 and a piston assembly installed in the filter tube 10.
As shown in fig. 1 to 3, one end of the filtering pipe 10 has a water inlet 11, the other end of the filtering pipe 10 has a sewage draining outlet 12, and the filtering pipe 10 is further provided with a water outlet 13. Referring to fig. 5, a filter screen 14 is disposed on a side wall of the filter pipe 10, the filter screen 14 has a plurality of filter holes 15, and the water outlet 13 is communicated with the filter screen 14.
The piston assembly includes the cleaning piston 30, a first seat 41 and a first elastic member 42. Specifically, the first seat body 41 is fixed to the filter pipe 10, and the first seat body 41 is hollow. In this embodiment, the first elastic element 42 is a compression spring, as shown in fig. 2 and fig. 3, one end of the first elastic element 42 is pressed against the cleaning piston 30, and the other end of the first elastic element 42 is pressed against the first seat 41. In addition, as a preferred option, the limiting ring 16 is disposed in the filtering pipe 10, and the limiting ring 16 and the first seat 41 are disposed on two sides of the cleaning piston 30, the limiting ring 16 of this embodiment may be replaced by a limiting block, as shown in fig. 2 and 3, the limiting ring 16 limits the movement of the cleaning piston 30 towards the water inlet 11, and of course, after the water flows into the water inlet 11, even if the limiting ring 16 is not disposed, the water pressure also limits the movement of the cleaning piston 30.
Referring to fig. 4, the cleaning piston 30 includes a scraping wall 32, the scraping wall 32 is attached to the filter screen 14, and the cleaning piston 30 is provided with a pressure relief valve 35.
The water flow enters the filter pipe 10 from the water inlet 11, is filtered by the filter screen 14 and then flows out from the water outlet 13. Preferably, an annular transition pipe section 21 is arranged in the middle of the filtering pipe 10, the filtering net 14 is located in the transition pipe section 21, the water outlet 13 is arranged on the transition pipe section 21, and the water outlet 13 is connected with a water outlet pipe 22, in this embodiment, the filtering holes 15 are arranged in the middle of the filtering pipe 10 and are uniformly distributed along the circumference of the filtering pipe 10 and are divided into a plurality of rows, and the annular transition pipe section 21 can buffer water flow flowing to the water outlet 13 after the water flow is filtered by the filtering net 14.
If the filtering holes 15 on the filtering net 14 are blocked, the water pressure at the water inlet 11 of the filtering pipe 10 is increased, and the cleaning piston 30 is pushed to move towards the sewage outlet 12, the other end of the cleaning piston 30 provides corresponding supporting force through the first elastic piece 42, more filtering holes 15 are correspondingly exposed in the moving process of the cleaning piston 30 for water to pass through, when the water pressure is increased to a certain pressure, the pressure relief valve 35 arranged on the cleaning piston 30 is opened, the water pressure of the cleaning piston 30 towards one side of the water inlet 11 is gradually reduced, then, the cleaning piston 30 is reset towards the water inlet 11, in the resetting process of the cleaning piston 30, the oil stain residues on the filtering net 14 can be scraped by the scraping wall 32 attached to the filtering net 14, the oil stain residues are discharged from the sewage outlet 13, after the filtering holes 15 on the filtering net 14 are dredged, the water flow of the water inlet 11 flows to the water outlet 12, the relief valve 35 is closed.
Specifically, the cleaning piston 30 further includes a piston body 31 and a piston seat 33, and the scraping wall 32 is located between the piston body 31 and the piston seat 33. Wherein, be provided with first sealing washer 34 between piston pedestal 33 and the wall 32 of scraping, piston body 31 and the wall 32 integrated into one piece of scraping, the shaping has scraping edge 322 between piston body 31 and the wall 32 of scraping, and piston body 31 sets up towards water inlet 11 direction, and piston body 31 is the taper pipe form, and the inboard notch of piston body 31 arranges towards water inlet 11 direction, and in the reset process of cleaning piston 30, can refer to fig. 3, cleaning piston 30 rebound, and annular scraping edge 322 can shovel away the filth on filter screen 14.
The piston body 31 is provided with a sewage discharge hole 311, the pressure release valve 35 comprises a sewage discharge plug 352 and a second elastic piece 351, the sewage discharge plug 352 is pressed on the sewage discharge hole 311, and the sewage discharge hole 311 of the piston body 31 is provided with a second sealing ring 312. One end of the second elastic member 351 abuts against the drainage plug 352, and the other end of the second elastic member 351 abuts against one side of the piston seat 33.
The piston seat body 33 is hollow, one side of the piston seat body 33 is provided with a first spring limiting ring 331 for limiting the radial movement of the first elastic member 42, the other side of the piston seat body is provided with a second spring limiting ring 332 for limiting the radial movement of the second elastic member 351, and the second spring limiting ring 332 is provided with a through hole for the movement of the drain plug 352.
Referring to fig. 6 to 12, the working principle flow of the self-cleaning piston type filter is shown. Fig. 6 shows an initial state, in which no water flow is introduced into the water inlet 11; referring to fig. 7, at this time, water flows into the filtering pipe 10 from the water inlet 11 and pushes the cleaning piston 30 to move downward, and the filtering holes 15 on the upper portion of the filtering net 14 are communicated with the water inlet 11; after filtering for a while, each filtering hole 15 on the upper portion of the filtering net 14 is gradually blocked, as shown in fig. 8; at this time, the water flow pushes the cleaning piston 30 to move downwards continuously, and the filtering holes 15 in the middle and the lower part of the filtering net 14 are gradually exposed to conduct the water inlet 11 and the water outlet 13, as shown in fig. 9 and 10; referring to fig. 11, each filtering hole 15 on the filtering net 14 is blocked, at this time, the pressure above the cleaning piston 30 is increased, the pressure relief valve 35 is opened, that is, the drain plug 352 moves downwards, the second elastic member 351 is compressed, and the drain hole 311 is communicated with the drain outlet 12; referring to fig. 12 again, because water inlet 11 and drain 12 switch on, clean piston 30 is the same from top to bottom pressure, and at this moment, clean piston 30 resets gradually, and at this moment, the wall 32 of scraping with filter screen 14 laminating can scrape the greasy dirt residue on filter screen 14, and greasy dirt residue discharges from drain 13, scrapes the dirt that blade 322 can make on the filter screen 14 and scrapes more easily. When the filtering holes 15 on the filtering net 14 are dredged, the water flow of the water inlet 11 flows to the water outlet 12, and when the pressure of the water inlet 11 reaches balance, the pressure relief valve 35 is closed, and at this time, the state can refer to fig. 7.
Further, the set pressure of the relief valve 35 is greater than the initial elastic force of the first elastic member 42, and it is understood that the initial elastic force of the second elastic force 351 is greater than the initial elastic force of the first elastic member 42, so that the cleaning piston 30 pushes down the first elastic member 42 first when the water pressure of the filter pipe 10 increases. The water pressure of the inlet water is greater than the elastic force of the second elastic force 351 when the drain plug 352 is opened, so that when the water pressure in the filter pipe 10 is increased to the water pressure of the inlet water, the drain plug 352 is smoothly opened to discharge oil stain residues and the like. Before the cleaning piston 30 descends to the lowest filtering hole 15, the elastic force of the first elastic member 42 should be smaller than the elastic force of the second elastic member 351 when the drain plug 352 is opened, so as to ensure that all filtering holes 15 in the filtering pipe 10 are fully utilized.
Referring to fig. 13, the embodiment of the present invention further shows a filtration system, which includes the self-cleaning piston type filter and a water tank 41, wherein the upper portion of the water tank 41 is communicated with a water outlet 13 through a pipeline, the bottom of the water tank 41 is communicated with a water inlet 11 through a pipeline, the water outlet 13 is provided with a water pump 42, and a drain outlet 12 is connected with a drain pipe 45. Further, the sewage drain pipe 45 is provided with a residue crusher 43. This filtration system can be used to the sewage in filtering water tank 41, and sewage gets into self-cleaning piston filter from the pond and filters, and the water purification after the filtration is exported from the delivery port, is carried the return water tank 41 by water pump 42 in, forms circulation system, and in addition, the greasy dirt residue after the filtration can be followed the drain and is gone away to smash through residue grinder 43, residue grinder 43 can be preferably the present market is used for installing the residue grinder under the kitchen sink.
Referring to fig. 14, the embodiment of the invention further shows a filtering system, which comprises the self-cleaning piston type filter, the water inlet 11 is connected with a water inlet pipe 44, the sewage outlet 12 is connected with a sewage discharge pipe 45, the water inlet pipe 44 is provided with a pressure stabilizing valve 46, and the sewage discharge pipe 45 is provided with a check valve 47. Further, the sewage drain pipe 45 is provided with a residue crusher 43. This filtration system is used for running water coarse filtration, and rivers get into automatically cleaning piston filter through inlet tube 44 and filter, and the water purification after the filtration is exported from the delivery port, supplies the user to use, and dirt particle etc. after the filtration are discharged from the drain to smash through residue grinder 43.
While the embodiments of the present invention have been described in detail with reference to the drawings, the present invention is not limited to the above embodiments, and various changes can be made without departing from the spirit of the present invention within the knowledge of those skilled in the art.
Claims (10)
1. A self-cleaning piston filter, comprising: comprises that
The sewage treatment device comprises a filter pipe (10), wherein one end of the filter pipe (10) is provided with a water inlet (11), the other end of the filter pipe (10) is provided with a sewage discharge outlet (12), a filter screen (14) is arranged on the side wall of the filter pipe (10), the filter screen (14) is provided with a plurality of filter holes (15), the filter pipe (10) is also provided with a water outlet (13), and the water outlet (13) is communicated with the filter screen (14); and
install piston assembly in filter tube (10), piston assembly is including clean piston (30), first pedestal (41) and first elastic component (42), first pedestal (41) are fixed on filter tube (10), first elastic component (42) one end supports and presses on clean piston (30), first elastic component (42) other end supports and presses first pedestal (41), clean piston (30) are including scraping wall (32), scrape wall (32) with filter screen (14) laminating, relief valve (35) are installed in clean piston (30).
2. A self-cleaning piston filter according to claim 1, characterised in that: the cleaning piston (30) further comprises a piston body (31) and a piston seat body (33), the piston body (31) is arranged towards the water inlet (11), a sewage discharge hole (311) is formed in the piston body (31), the scraping wall (32) is located between the piston body (31) and the piston seat body (33), the pressure release valve (35) comprises a sewage discharge plug (352) and a second elastic piece (351), the sewage discharge plug (352) is pressed on the sewage discharge hole (311), one end of the second elastic piece (351) is pressed on the sewage discharge plug (352), and the other end of the second elastic piece (351) is pressed on one side of the piston seat body (33).
3. A self-cleaning piston filter according to claim 1, characterised in that: a limiting ring (16) is arranged in the filter pipe (10), and the limiting ring (16) and the first seat body (41) are respectively arranged on two sides of the cleaning piston (30).
4. A self-cleaning piston filter according to claim 2, characterised in that: the piston body (31) is in a conical tube shape, and a notch on the inner side of the piston body (31) is arranged towards the water inlet (11).
5. A self-cleaning piston filter according to claim 2 or 4, characterised in that: the piston body (31) and the scraping wall (32) are integrally formed, and a scraping edge (322) is formed between the piston body (31) and the scraping wall (32).
6. A self-cleaning piston filter according to claim 2, characterised in that: a first sealing ring (34) is arranged between the piston seat body (33) and the scraping wall (32), and a second sealing ring (312) is arranged in a sewage discharge hole (311) of the piston body (31).
7. A self-cleaning piston filter according to claim 2 or 6, characterised in that: the piston seat body (33) is hollow, one side of the piston seat body (33) is provided with a first spring limiting ring (331) used for limiting the radial movement of the first elastic piece (42), and the other side of the piston seat body is provided with a second spring limiting ring (332) used for limiting the radial movement of the second elastic piece (351).
8. A self-cleaning piston filter according to claim 1 or 2, characterised in that: an annular transition pipe section (21) is arranged in the middle of the filter pipe (10), the filter screen (14) is located in the transition pipe section (21), the water outlet (13) is arranged on the transition pipe section (21), and the water outlet (13) is connected with a water outlet pipe (22).
9. A filtration system, characterized by: comprises that
A self-cleaning piston filter according to any one of claims 1 to 8; and
the water outlet device comprises a water tank (41), wherein the upper part of the water tank (41) is communicated with a water outlet (13) through a pipeline, the bottom of the water tank (41) is communicated with a water inlet (11) through a pipeline, a water pump (42) is arranged at the water outlet (13), and a sewage discharge pipe (45) is connected to the sewage discharge port (12).
10. A filtration system, characterized by: comprising a self-cleaning piston filter according to any one of claims 1-8, the water inlet (11) being connected to a water inlet pipe (44), the drain outlet (12) being connected to a drain pipe (45), the water inlet pipe (44) being equipped with a pressure maintaining valve (46), the drain pipe (45) being equipped with a non-return valve (47).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201911274835.5A CN111054115A (en) | 2019-12-12 | 2019-12-12 | Self-cleaning piston type filter and filtering system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201911274835.5A CN111054115A (en) | 2019-12-12 | 2019-12-12 | Self-cleaning piston type filter and filtering system |
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| Publication Number | Publication Date |
|---|---|
| CN111054115A true CN111054115A (en) | 2020-04-24 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201911274835.5A Pending CN111054115A (en) | 2019-12-12 | 2019-12-12 | Self-cleaning piston type filter and filtering system |
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Cited By (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111530154A (en) * | 2020-05-10 | 2020-08-14 | 贾小帅 | Water-saving self-cleaning pipeline filtering device |
| CN111530142A (en) * | 2020-05-08 | 2020-08-14 | 于国飞 | Automatically cleaning purifier |
| CN112178248A (en) * | 2020-09-26 | 2021-01-05 | 南安市丽迪家居用品有限公司 | Anti-blocking type pressure release valve |
| CN113006207A (en) * | 2021-03-18 | 2021-06-22 | 长沙英芙机电科技有限公司 | Building drainage device |
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| CN111530154B (en) * | 2020-05-10 | 2021-12-10 | 宁夏兴屹建设工程有限公司 | Water-saving self-cleaning pipeline filtering device |
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| CN112178248A (en) * | 2020-09-26 | 2021-01-05 | 南安市丽迪家居用品有限公司 | Anti-blocking type pressure release valve |
| CN113006207B (en) * | 2021-03-18 | 2024-03-15 | 深圳市新星联合管道有限公司 | Building drainage device |
| CN113006207A (en) * | 2021-03-18 | 2021-06-22 | 长沙英芙机电科技有限公司 | Building drainage device |
| CN113694582A (en) * | 2021-08-31 | 2021-11-26 | 绍兴拓邦电子科技有限公司 | Crystal silicon surface texturing additive and production preparation system thereof |
| CN114288736A (en) * | 2021-12-31 | 2022-04-08 | 江苏恒大变压器有限公司 | Oil-immersed transformer fluid filter assembly |
| CN114534370A (en) * | 2022-03-29 | 2022-05-27 | 无锡亚舟精机有限公司 | Car washing sewage treatment system and preposed cleaning machine thereof |
| CN115944970A (en) * | 2023-03-14 | 2023-04-11 | 山东盛蓝环境科技有限公司 | Sewage treatment plant convenient to installation and mounting structure thereof |
| CN115944970B (en) * | 2023-03-14 | 2023-05-23 | 山东盛蓝环境科技有限公司 | Sewage treatment device convenient to installation |
| CN118217699A (en) * | 2024-05-22 | 2024-06-21 | 天津绿缘环保工程股份有限公司 | Water purification and filtration device |
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| CN118578410A (en) * | 2024-07-29 | 2024-09-03 | 常州泰尔格重工机械有限公司 | Cleaning robot and cleaning method thereof |
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