Disclosure of Invention
The invention aims to provide a novel back flushing filtering water purifier, which aims to at least solve one of the technical problems in the prior art.
In order to achieve the above object, the technical scheme of the present invention provides a novel backwash filter water purifier, comprising:
the container comprises a main body bottle and a main body cover, wherein the main body cover is provided with a water inlet channel, a water outlet channel and a sewage drainage channel, and the water outlet channel is communicated with an inner cavity of the main body bottle;
the filter material is vertically arranged in the container and is provided with a raw water channel; and
the valve body is rotatably arranged on the main body cover, a first communication port and a second communication port are formed in the outer portion of the valve body, and the first communication port and the second communication port are communicated and arranged through an inner water cavity of the valve body;
the valve body is provided with a filtering state and a back flushing state, when the valve body rotates to the filtering state, the water inlet channel is communicated with the first communication port, the second communication port is communicated with the raw water channel, when the valve body rotates to the back flushing state, the raw water channel is communicated with the second communication port, and the first communication port is communicated with the sewage disposal channel.
Further, the filter medium is of a drum-shaped structure, the center of the filter medium extends vertically to form the raw water channel, the top of the raw water channel is provided with a first opening, the second communication port is arranged at the bottom of the valve body, and the second communication port is communicated with the raw water channel through the first opening.
Further, the main body cover is provided with a columnar accommodating cavity, the valve body is rotatably installed in the accommodating cavity, the water inlet channel and the sewage drain channel are respectively communicated with the side wall of the accommodating cavity, and the first communication port is formed in the outer peripheral surface of the valve body so as to enable the first communication port to be communicated with the water inlet channel or the sewage drain channel through rotating the valve body.
Further, the bottom of the accommodating cavity is provided with a second opening, and the second opening is communicated with the first opening, so that the second communication port is communicated with the raw water channel through the first opening and the second opening.
Further, the valve body comprises a valve core and a control handle, the valve core is rotatably installed in the accommodating cavity, a connecting rod is arranged at the top of the valve core, and the connecting rod penetrates through the top wall of the accommodating cavity and is connected with the control handle.
Further, the central axis of the water inlet channel extends along the horizontal direction, the central axis of the sewage channel extends along the horizontal direction, and the central axis of the sewage channel is perpendicular to the central axis of the water inlet channel.
Further, the number of the blowdown channels is two, the two blowdown channels are oppositely arranged, the number of the first communication ports is two, the two first communication ports are oppositely arranged, and when the valve body rotates to a backwashing state, the two first communication ports are communicated with the two blowdown channels in a one-to-one correspondence manner.
Further, the water purifier comprises an air bag, the air bag is placed in the container, the air bag comprises a film bag body with a closed space, air is filled in the closed space, the air bag is compressed under the action of water pressure so as to eliminate the water hammer impact of the water purifier, and when the valve body is rotated to a back flushing state, the filter material is reversely flushed by clean water filtered in the container through decompression expansion of the air bag, so that impurities and sewage intercepted by filtering of the filter material are flushed into the raw water channel and discharged through the sewage drainage channel.
Further, a mounting column is arranged between the bottom of the filter material and the bottom wall of the main body bottle, and the air bag is of an annular structure, so that a mounting hole is formed in the middle of the air bag, and the air bag is sleeved on the mounting column through the mounting hole for mounting.
Further, the volume of the air bag is approximately 0.75-1.25 times of the volume of the raw water channel.
As can be seen from the above technical solution, in the backwash filter water purifier of the present invention, when the valve body is turned to the filtering state, the water inlet channel is communicated with the first communication port, the second communication port is communicated with the raw water channel, so that raw water flowing in from the water inlet channel flows into the raw water channel of the filter medium via the first communication port and the second communication port, and flows into the container after being filtered from inside to outside through the filter medium, and flows out through the water outlet channel, so as to be used for life of people, when the valve body is turned to the backwash state, the raw water channel is communicated with the second communication port, the first communication port is communicated with the blowdown channel, so that purified water filtered in the container reversely flushes the filter medium, so that impurities and sewage intercepted by the filter medium filtration are flushed into the raw water channel and discharged via the blowdown channel, the filter material is prevented from being polluted by secondary pollution by using filtered water instead of untreated raw water to reversely wash the filter material, the filter material is filtered from the inner side to the outer side, the principle of a filtering structure of a conventional filter is just opposite, when the filter material is backwashed, the filtered water in the container can reversely wash the filter material and flow into a raw water channel, the surface area of the filter material on the inner side of the raw water channel is smaller, the washing flow rate per unit area is faster under the same washing flow, so that the washing effect is effectively improved, the whole filter material can be washed from the outside to the inside, most of impurities and sewage can be washed in the raw water channel and can be discharged through a sewage discharging channel, the filtering performance of the filter material is recovered, the service life of the filter material is prolonged, the structure is simple, the cost is low, the maintenance is convenient, the production is easy, and the practicability is good.
In order to make the technical conception and other objects, advantages, features and functions of the present invention more obvious and understandable, preferred embodiments will be described in detail below with reference to the accompanying drawings.
Detailed Description
This embodiment of the application is through providing a novel back flush filtration water purifier to having solved at least one of the technical problem that exists among the prior art, lead to filter media 30 and adopt the filtration principle mode that just reverses with conventional art, it is filtered by the inboard outside of filter media 30 step by step, filter precision and filter effect have been showing to carry out the back flush by the outside of filter media 30 to the inboard filter media 30 surface area, under the same flushing flow, the flushing velocity of flow of unit area is faster, with the promotion flushing effect, and can wash most impurity and sewage in raw water channel 310 and can discharge through trapway 124, with the filtration performance of recovering filter media 30, avoid impurity residue can cause secondary pollution or filter media 30 mould and smell, thereby effectively promote domestic water quality.
In order to enable those skilled in the art to better understand the technical solutions of the present application, the technical solutions of the embodiments of the present application will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present application, and it is apparent that the described embodiments are only some embodiments of the present application, not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the invention without making any inventive effort, are intended to be within the scope of the present application.
Referring to fig. 1 to 5, the present embodiment provides a novel backwash filter water purifier, which includes a container 10, a filter material 30 and a valve body 20, wherein the container 10 includes a main body bottle 110 and a main body cover 120, the main body cover 120 has a water inlet channel 121, a water outlet channel 122 and a sewage drain channel 124, and the water outlet channel 122 is communicated with an inner cavity of the main body bottle 110; the filter 30 is vertically disposed in the container 10, and the filter 30 is provided with a raw water channel 310; the valve body 20 is rotatably arranged on the main body cover 120, a first communication port 201 and a second communication port 202 are formed in the outer portion of the valve body 20, and the first communication port 201 and the second communication port 202 are communicated and arranged through an inner water cavity of the valve body 20; wherein, the valve body 20 has a filtering state and a back flushing state, when the valve body 20 is rotated to the filtering state, the water inlet channel 121 is communicated with the first communication port 201, the second communication port 202 is communicated with the raw water channel 310, when the valve body 20 is rotated to the back flushing state, the raw water channel 310 is communicated with the second communication port 202, and the first communication port 201 is communicated with the sewage disposal channel 124.
As can be seen, in the backwash filter water purifier of the present embodiment, when the valve body 20 is rotated to the filtering state, the water inlet passage 121 communicates with the first communication port 201, the second communication port 202 communicates with the raw water passage 310, so that raw water flowing in from the water inlet passage 121 flows into the raw water passage 310 of the filter media 30 through the first communication port 201 and the second communication port 202, flows into the container 10 after being filtered from inside to outside through the filter media 30, and flows out through the water outlet passage 122, thereby being used for life, when the valve body 20 is rotated to the backwash state, the raw water passage 310 communicates with the second communication port 202, the first communication port 201 communicates with the sewage drain passage 124, so that the filtered purified water in the container 10 reversely flushes the filter media 30, thereby realizing that impurities and sewage intercepted by the filter media 30 are flushed into the raw water passage 310 and discharged through the sewage drain passage 124, the use of filtered water instead of untreated raw water to reversely flush the filter medium 30 prevents the filter medium 30 from being polluted by secondary pollution, the filter medium 30 adopts a mode of filtering from the inner side to the outer side, which is contrary to the principle of the filtering structure of the conventional filter, when back flushing, the filtered water in the container 10 can reversely flush the filter medium 30 and flow into the raw water channel 310, because the surface area of the filter medium 30 at the inner side of the raw water channel 310 is smaller, the flushing flow rate per unit area is faster under the same flushing flow rate, thereby effectively improving the flushing effect, the whole filter medium 30 can be flushed from the outside to the inside, and most of impurities and sewage can be flushed in the raw water channel 310 and discharged through the sewage discharging channel 124, so as to recover the filtering performance of the filter medium 30, improve the service life of the filter medium 30, and has the advantages of simple structure, low cost, low failure rate, convenient maintenance and easy production, the practicability is better.
In this embodiment, the filter material 30 is in a roll-shaped structure, and a PP cotton filter cartridge can be adopted, wherein the PP cotton filter cartridge is a roll-shaped filter material 30 made of non-toxic and odorless polypropylene (PP) through heating, melting, spinning, traction and forming, and has a deep-layer filter structure with uniform pore diameter, high filtering efficiency and acid and alkali resistance, and a raw water channel 310 is formed by extending vertically at the center of the filter material 30, the top of the raw water channel 310 is provided with a first opening 321, a second communication port 202 is arranged at the bottom of the valve body 20, and the second communication port 202 is communicated with the raw water channel 310 through the first opening 321.
Specifically, the main body cover 120 is provided with a cylindrical accommodating cavity 125, the valve body 20 is rotatably installed in the accommodating cavity 125, the water inlet channel 121 and the sewage drain channel 124 are respectively and rotatably disposed through the sidewall of the accommodating cavity 125, and the first communication port 201 is disposed on the outer circumferential surface of the valve body 20, so that the first communication port 201 is communicated with the water inlet channel 121 or the sewage drain channel 124 by rotating the valve body 20, wherein the first communication port 201 is communicated with the water inlet channel 121 when the valve body 20 is rotated to a filtering state, and the first communication port 201 is communicated with the sewage drain channel 124 when the valve body 20 is rotated to a backwashing state, and the valve body 20 can be automatically operated by a motor or manually rotated.
Further, the bottom of the accommodating cavity 125 is provided with a second opening 126, the second opening 126 is communicated with the first opening 321, so that the second communicating port 202 is communicated with the raw water channel 310 through the first opening 321 and the second opening 126, wherein the top of the filter material 30 is covered with an upper cover 320, the middle of the upper cover 320 protrudes upwards to extend to form the first opening 321, so that the first opening 321 is inserted into the second opening 126 to be communicated with the raw water channel 310 of the second communicating port 202, and a soft rubber ring is arranged between the first opening 321 and the second opening 126 to achieve the sealing effect.
In this embodiment, the valve body 20 includes a valve core and a control handle 220, the valve core is rotatably installed in the accommodating cavity 125, the top of the valve core is provided with a connecting rod 210, the connecting rod 210 passes through the top wall of the accommodating cavity 125 and is connected with the control handle 220, wherein the valve core has a columnar structure, so that the valve core can be rotated by pulling the control handle 220 by hand, thereby switching the valve body 20 between the filtering state and the backwashing state.
Specifically, the central axis of the water inlet channel 121 extends in the horizontal direction, the central axis of the sewage drain channel 124 extends in the horizontal direction, and the central axis of the sewage drain channel 124 is perpendicular to the central axis of the water inlet channel 121, so that the valve body 20 can be switched between the filtering state and the backwashing state by rotating the valve body 20 to 90 degrees clockwise or anticlockwise.
Further, the number of the blowdown channels 124 is two, the two blowdown channels 124 are oppositely arranged, the number of the first communication ports 201 is two, the two first communication ports 201 are oppositely arranged, when the valve body 20 rotates to a backwashing state, the two first communication ports 201 are communicated with the two blowdown channels 124 one by one, the water inlet channel 121 is blocked and blocked by the outer wall of the valve body 20, when the valve body 20 rotates to a filtering state, one of the first communication ports 201 is communicated with the water inlet channel 121, the other first communication port 201 is blocked and blocked by the outer wall of the valve body 20, and the blowdown channels 124 are blocked and blocked by the outer wall of the valve body 20.
In this embodiment, the backwash filter water purifier further includes an air bag 40, the air bag 40 is placed in the container 10, the air bag 40 includes a film bag body 410 having a closed space, the closed space is filled with gas, the film bag body 410 can be made of PE material, so that the air bag 40 is compressed under the action of water pressure to eliminate the water hammer impact of the water purifier, and when the valve body 20 is rotated to the backwash state, the filter material 30 is reversely flushed with the filtered water in the container 10 by the decompression expansion of the air bag 40, so that the impurities and sewage intercepted by the filtration of the filter material 30 are flushed into the raw water channel 310 and discharged through the sewage drain channel 124.
Specifically, be provided with the erection column 111 between the diapire of filter media 30 and main part bottle 110, the air bag 40 is the annular structure, thereby form mounting hole 420 at the middle part of air bag 40, thereby make air bag 40 locate the erection column 111 through mounting hole 420 cover and install, and simple structure, simple to operate, low in production cost, wherein, the erection column 111 sets up on the diapire of main part bottle 110, the bottom lid of filter media 30 is equipped with lower lid 330, the protruding extension in bottom of lower lid 330 is formed with grafting mouth 331, thereby make filter media 30 insert and locate on this grafting mouth 331 through mounting column 111 and install fixedly, and settle the air bag 40 in the empty space between the bottom of filter media 30 and main part bottle 110, space layout is reasonable, space utilization in the container 10 has effectively been promoted.
Further, the volume of the air bag 40 is approximately 0.75-1.25 times of the volume of the raw water channel 310, so that the expansion volume of the air bag 40 is similar to the volume of the raw water channel 310, so that the sewage equivalent to the expansion volume of the air bag 40 can be discharged out of the container 10 from the sewage drainage channel 124 in the back flushing state, the air bag 40 can provide better boosting effect for back flushing of the filter material 30 through expansion, in addition, an external pressure tank can be arranged on the water outlet channel 122 side of the back flushing filter water purifier, the air bag in the pressure tank can expand to provide boosting for back flushing of the filter material 30 in back flushing, or a plastic water pipe (such as ppr water pipe) with a smaller elastic coefficient is adopted on the water outlet channel 122 side of the back flushing filter water purifier, so that the water pipe is depressurized and contracted in back flushing can also provide boosting for back flushing of the filter material 30 in back flushing. And the sewage equivalent to the contracted volume is discharged from the sewage discharge passage 124 to the outside of the container 10.
When the valve body 20 is turned to the filtering state, untreated raw water flows into the raw water channel 310 of the filter medium 30 from the water inlet channel 121 through the valve body 20, is filtered layer by layer from inside to outside by the filter medium 30, then enters the purified water space between the filter medium 30 and the main body bottle 110, finally flows out of the water outlet channel 122 for life use, and at the moment, impurities in the raw water are trapped in the raw water channel 310 of the filter medium 30;
when water is stopped, the air bag 40 in the container 10 is compressed under the action of water pressure, so that the impact of water hammer on the filtering water purifier can be effectively eliminated;
when the valve body 20 is turned to a back flushing state, the filtered clean water in the container 10 reversely flushes the filter material 30, so that the impurities and sewage intercepted by the filter material 30 are flushed into the raw water channel 310 and discharged through the sewage channel 124, at the moment, the raw water channel 310 is communicated with the second communication port 202, the first communication port 201 is communicated with the sewage channel 124, the sewage channel 124 is equivalent to a pressure relief port, the air bag 40 can be expanded under pressure, the clean water with the same expansion volume as the air bag 40 in the container 10 is reversely flushed into the raw water channel 310 of the filter material 30, and the impurities and sewage intercepted in the raw water channel 310 are flushed down and discharged out of the container 10 from the sewage channel 124;
the volume of the raw water channel 310 of the filter material 30 is about 1/15 of the whole volume of the filter material 30, the water capacity of the raw water channel 310 is about 150ml, and the volume is smaller than the contracted volume of the air bag 40, so that impurities and sewage in the raw water channel 310 can be just discharged cleanly by using the pressure generated by the decompression expansion of the air bag 40, besides the air bag 40, the external connecting water pipe and the main body bottle 110 can expand and contract under the action of water pressure, and the volume deformation generated by the external connecting water pipe of the air bag 40 and the main body bottle 110 after decompression is generally larger than the volume of the raw water channel 310 of the filter material 30, so that impurities and sewage can be discharged cleanly, and the flushing water is not wasted excessively.
The back flushing is that water flows through the outer surface of the filter material 30 to the inner hole of the filter material 30 in a reverse direction, the outer surface area of the filter material 30 is usually more than 15 times of the inner surface area of the inner hole, the same flushing water quantity is used, the flow rate of water per unit area of the inner surface of the filter material 30 is 15 times of that of the outer surface of the filter material 30, so that the flushing effect of flushing from outside to inside of the filter material 30 is far better than that of flushing from inside to outside, the flushing effect depends on the instant pressure difference generated on the surface of the filter material 30, when the filter material 30 is switched from the filtering state to the back flushing state, the pressure difference is formed between the inside of the filter water purifier and the sewage drain channel 124, the faster the switching speed of the filter material 30 is, the larger the pressure difference is, impurities adhered on the filter material 30 can be flushed instantly, then the impurities are discharged from the sewage drain channel 124, the impurities can be discharged cleanly by the water equal to the raw water channel 310, a great amount of water is not consumed for flushing, the flushing effect is better, and after the flushing is completed, the valve body 20 can be rotated to return to the original filtering state.
In this embodiment, the air bag 40 is matched with the structural design of the valve body 20, so that the filtered clean water can be used for reversely flushing the filter material 30, the filter material 30 is prevented from being polluted by secondary pollution, and the filter material is healthier to use.
The filtering water purifier has the advantages that the filtering structure from inside to outside can achieve high precision without affecting water pressure, the filtering area of the outer layer of the filtering material 30 is 15 times of that of the inner layer, the resistance is lower, the filtering precision of the filtering material 30 can be improved step by step from inside to outside, even the resistance of the filtering material 30 cannot be increased due to the fact that the outer layer of the filtering material 30 is 15 times of that of the inner layer, the resistance of the filtering material 30 cannot be increased due to the fact that the inner surface of the filtering material 30 is 1/15 of that of the conventional filtering structure from outside to inside, and the resistance cannot be increased while the filtering precision cannot be improved.
In addition, the filter structure from inside to outside is matched with the container 10 of the transparent bottle body, so that the use state of the filter material 30 can be conveniently observed, if the interception capability of the filter material 30 is saturated, the filter material 30 at the outermost layer can be discolored, which indicates that the whole filter material 30 is penetrated by pollutants and needs to be replaced, while in the conventional filter structure, water flows through the filter material 30 from outside to inside, the outer layer of the filter material 30 is easy to discolor, but whether the filter material 30 should be replaced depends on the state of the inner layer of the filter material 30, if the inner layer of the filter material 30 is clean, the filter material can be continuously used, but even the transparent filter bottle cannot observe the actual condition.
From the above description, it can be seen that the above embodiments of the present invention achieve the following technical effects:
when the valve body 20 is turned to the filtering state, the water inlet channel 121 is communicated with the first communication port 201, the second communication port 202 is communicated with the raw water channel 310, so that raw water flowing in from the water inlet channel 121 flows into the raw water channel 310 of the filter material 30 through the first communication port 201 and the second communication port 202, flows into the container 10 after being filtered from inside to outside through the filter material 30 and flows out through the water outlet channel 122, thereby being used for life of people, when the valve body 20 is turned to the back flushing state, the raw water channel 310 is communicated with the second communication port 202, the first communication port 201 is communicated with the sewage discharging channel 124, so that the filtered purified water in the container 10 reversely washes the filter material 30, thereby realizing that impurities and sewage intercepted by the filter material 30 are flushed into the raw water channel 310 and discharged through the sewage discharging channel 124, the use of filtered water instead of untreated raw water reversely scours the filter medium 30, avoids secondary pollution of the filter medium 30, the filter medium 30 adopts a mode of filtering from the inner side to the outer side, and the principle of a filtering structure of a conventional filter is quite opposite to that of the conventional filter, when the filter medium is backwashed, the filtered water in the container 10 reversely scours the filter medium 30 and flows into the raw water channel 310, and the flushing flow rate per unit area is higher under the same flushing flow rate due to the smaller surface area of the filter medium 30 in the raw water channel 310, so that the flushing effect is effectively improved, the whole filter medium 30 can be flushed from the outside to the inside, most of impurities and sewage can be flushed in the raw water channel 310 and discharged through the sewage drainage channel 124, so that the filtering performance of the filter medium 30 is recovered, and the filter medium has the advantages of simple structure, low cost, low failure rate, convenience in maintenance, easiness in production and better practicability.
It is noted that the terminology used herein is for the purpose of describing particular embodiments only and is not intended to be limiting of example embodiments in accordance with the present application. As used herein, the singular is also intended to include the plural unless the context clearly indicates otherwise, and furthermore, it is to be understood that the terms "comprises" and/or "comprising" when used in this specification are taken to specify the presence of stated features, steps, operations, devices, components, and/or combinations thereof.
The relative arrangement of the components and steps, numerical expressions and numerical values set forth in these embodiments do not limit the scope of the present application unless it is specifically stated otherwise. Meanwhile, it should be understood that the sizes of the respective parts shown in the drawings are not drawn in actual scale for convenience of description. Techniques, methods, and apparatus known to one of ordinary skill in the relevant art may not be discussed in detail, but should be considered part of the specification where appropriate. In all examples shown and discussed herein, any specific values should be construed as merely illustrative, and not a limitation. Thus, other examples of the exemplary embodiments may have different values. It should be noted that: like reference numerals and letters denote like items in the following figures, and thus once an item is defined in one figure, no further discussion thereof is necessary in subsequent figures.
In the description of the present application, the terms "center," "upper," "lower," "front," "rear," "left," "right," "transverse," "longitudinal," "vertical," "horizontal," "top," "bottom," "inner," "outer," and the like indicate or are based on the orientation or positional relationship shown in the drawings, merely for convenience of description and to simplify the description, and do not indicate or imply that the devices or elements referred to must have a specific orientation, be configured and operated in a specific orientation, and therefore should not be construed as limiting the present application.
It should be noted that, in the description of the present application, unless explicitly specified and limited otherwise, the terms "disposed, connected, mounted" and the like are to be construed broadly, and may be, for example, fixedly connected, detachably connected, or in contradiction or integrally connected; the specific meaning of the terms in this application will be understood by those of ordinary skill in the art in a specific context.
It should also be noted that unless explicitly stated or limited otherwise, terms such as "mounted," "connected," "secured," "disposed," and the like are to be construed broadly and may be, for example, fixedly connected, detachably connected, or integrally formed; can be mechanically or electrically connected; can be directly connected or indirectly connected through an intermediate medium, and can be communicated with the inside of two elements or the interaction relationship of the two elements. The specific meaning of the above terms in the present invention can be understood by those of ordinary skill in the art according to the specific circumstances.
In addition, in the description of the present invention, the terms "first" and "second" are used to define the components, and are merely for convenience of distinguishing the corresponding components, and unless otherwise stated, the terms have no special meaning, and thus should not be construed as limiting the scope of the present application.
While the foregoing is directed to the preferred embodiments of the present invention, it will be appreciated by those skilled in the art that changes and modifications may be made without departing from the principles of the invention, such changes and modifications are also intended to be within the scope of the invention.