CN219752000U - A screw-adjustable backwash terminal water purifier - Google Patents

Abstract

The utility model discloses a back flush tail end water purifier with screwing adjustment, which comprises a shell, a filter element, a shell seat, an adjusting turntable, a water outlet grid, a back flush filter disc and a filter disc pressing plate, wherein the shell is provided with a water inlet and a water outlet; the shell is a cylindrical shell with a cylindrical cavity in the middle and an opening at the bottom; the bottom of the shell seat is provided with a purified water inlet, a back flush water inlet, a purified water outlet and a back flush water outlet; a clean water flushing switching valve core is arranged below the clean water inlet and the backwash water inlet; a clean water discharge opening and closing valve core is arranged below the clean water discharge opening; and a sewage discharge opening and closing valve core is arranged below the backwashing water outlet. The back flush tail end water purifier with the screwing adjustment can reversely flush the filter element assembly, wash away adsorbed, deposited and blocked particles on the surface or in a membrane hole of the filter element, recover the water flux and the filtering precision of the filter element of the filter membrane, ensure the good filtering performance of the filter element and prolong the service life of the filter element; the water purification filtration and back flushing functions are convenient to switch and adjust.

Description

A screw-adjustable backwash terminal water purifier

Technical field

The utility model relates to the technical field of water purifiers, and in particular to a twist-adjustable backwash terminal water purifier.

Background technique

Among the existing water purification methods, during the use of membrane water treatment technology, membrane fouling will inevitably occur as the operating time increases, resulting in performance changes such as membrane permeability flux and rejection rate, shortening the service life, and greatly Hindering the practical application of membrane separation technology. Therefore, it is necessary to take corresponding cleaning measures and prevention and control measures to partially or completely restore membrane performance.

In the current filtration system of household water purifiers, the main cause of membrane pollution is adsorption pollution on the membrane surface. Membrane adsorption pollution refers to the adsorption and deposition of particles, colloidal particles and solute macromolecules in the treated materials due to physical, chemical or mechanical interactions with the membrane on the membrane surface or in the membrane pores, causing the membrane pore size to become smaller or blocked, causing the membrane to become smaller. The flux and separation characteristics of the membrane change. The pollution layer formed by the deposition of components in the feed liquid on the membrane surface will increase the resistance of the membrane process, which may be much greater than the resistance of the membrane itself; the deposition of components in the membrane pores will cause the membrane pores to be reduced or even blocked.

At present, after a household water purifier has been used for a period of time, the method of regularly discarding the filter element and replacing it with a new one is often used to maintain the filtration performance of the water purifier, making the household membrane filter element components become consumables, resulting in a lot of waste and loss of material and financial resources.

Utility model content

The purpose of this utility model is to provide a twist-adjustable backwash terminal water purifier with a simple and reasonable design, a stable and reliable structure, and convenient switching and adjustment of the water purification filtration and backwash functions; it can backwash the filter element assembly and remove the filter element. The adsorbed, deposited, and clogged particles on the membrane surface or in the membrane pores are washed away, restoring the water flux and filtration accuracy of the membrane filter element, ensuring good filtration performance of the filter element and extending its service life.

In order to solve the above technical problems, the technical solution of the present invention is:

A screw-adjustable backwash terminal water purifier, including a shell, a filter element, a shell seat, a water outlet grid, a backwash filter, a filter plate pressure plate, and an adjustment turntable;

The shell is a shell with a cavity in the middle and an opening at the bottom;

The filter element is installed in the cavity of the housing, with a cavity in the middle, and a number of micropores on the outer wall for water to penetrate and block impurities out of the micropores (outside the outer wall).

The shell seat is a shell with an open upper end and a column cavity in the middle; the shell is arranged vertically, and its bottom end is connected to the shell seat; a sealing ring is pressed between the shell and the shell seat to ensure airtightness.

The water outlet grate is a bottom end cover provided with a number of drainage meshes. One side of the drainage mesh is provided with a sewage diversion cavity for discharging sewage after backwashing.

The column cavity of the housing seat is provided with an installation cavity for a backwash filter; the backwash filter is located in the installation cavity;

The filter plate pressing plate is located in the column cavity of the shell seat, between the filter element and the backwash filter plate (usually pressed on the backwash filter plate), and has a through hole on it.

The bottom of the shell seat is provided with a clean water inlet, a backwash water inlet, a clean water drain, and a backwash drain; the interval between the inner wall of the shell and the outer wall of the filter element is connected to the clean water inlet, and the inner wall of the shell The spaced area between the outer wall of the filter element is connected to the backwash drain port; the backwash water inlet and the clean water drain port are connected to the column cavity.

There is a clean water flushing switching valve core below the clean water inlet and the backwash water inlet; a clean water opening and closing valve core is provided below the clean water drain port; and a drain valve core is provided below the backwash drain port. Sewage opening and closing valve core.

The adjusting turntable is engaged and connected with the clean water flushing switch valve core, the drain water opening and closing valve core, and the drain water opening and closing valve core. Rotate the adjustment dial to make the clean water flushing switching valve core, the drain water opening and closing valve core, and the drainage opening and closing valve core rotate around their own axes. When rotating, the marbles on the top of the purified water flushing switch valve core, the purified water on-off valve core, and the drain on-off valve core will move, allowing the marbles to block or avoid the purified water inlet at the bottom of the shell seat. , backwash water inlet, clean water drain, backwash drain.

When using purified water normally: The marble of the purified water flush switching valve core blocks the backwash inlet. The purified water inlet is connected to the water inlet pipe. The water flow enters the interval between the inner wall of the shell and the outer wall of the filter element, and then filters through the outer wall of the filter element. It penetrates into the filter element, then flows to the clean water drain port through the backwash filter at the bottom of the filter element, then flows through the clean water opening and closing valve core, and then flows out through the drain hole on the water outlet grate.

During reverse flushing: The marble of the clean water flushing switching valve core blocks the clean water inlet, and the backwash water inlet is connected to the water inlet pipe. The water flows through the backwash filter disc and flows into the inside of the filter element, and then flushes and penetrates from the inner wall of the filter element into the filter element. The space between the inner wall of the shell and the outer wall of the filter element is then discharged through the backwash drain port, the sewage opening and closing valve core, and the sewage diversion cavity.

The water purification switching valve core includes a water purification function valve position and a backwash function valve position. The position where the marble at the top blocks the backwash water inlet is the water purification function valve position, and the marble at the top blocks the purification water inlet. The position of the water inlet is the backwash function valve position.

The purified water inlet and the purified water drain are opened or closed synchronously (that is, blocked or avoided by marbles at the same time), and the backwash water inlet and the backwash drain are opened or closed synchronously.

Beneficial effects of this utility model:

Its design is simple and reasonable, the structure is stable and reliable, and the water purification filtration and backwash functions are easy to switch and adjust; it can reversely flush the filter element assembly to flush away particles adsorbed, deposited, and blocked on the membrane surface or in the membrane pores of the filter element, and restore the membrane filter element. The water flux and filtration precision ensure the good filtration performance of the filter element and extend its service life.

Description of the drawings

Figure 1 is a schematic structural diagram of a twist-adjustable backwash terminal water purifier of the present invention;

Figure 2 is a top view of a twist-adjustable backwash terminal water purifier of the present invention;

Figure 3 is a cross-sectional view along the C-C direction in Figure 2;

Figure 4 is an exploded schematic diagram of the structure of a twist-adjustable backwash terminal water purifier of the present invention;

Figure 5 is a partial structural exploded view of a twist-adjustable backwash terminal water purifier of the present invention.

Detailed ways

The specific embodiments of the present invention will be further described below in conjunction with the accompanying drawings. It should be noted here that the description of these embodiments is used to help understand the present invention, but does not constitute a limitation of the present invention. In addition, the technical features involved in the various embodiments of the present invention described below can be combined with each other as long as they do not conflict with each other.

As shown in Figure 1-5, a screw-adjustable backwash terminal water purifier includes a housing 1, a filter element 2, a housing seat 3, a water outlet grille 5, a backwash filter 6, a filter pressure plate 7, and an adjustment turntable 4 ;

The shell 1 is a cylindrical shell with a cylindrical cavity in the middle and an opening at the bottom;

The filter element 2 is cylindrical and is located in the cylindrical cavity of the housing 1. There is a cavity in the middle and a number of micropores on the outer wall for water to penetrate and block impurities from the micropores. outside the outer wall).

The shell seat 3 is a shell with an open upper end and a column cavity in the middle; the shell 1 is set vertically, and its bottom end is connected to the shell seat 3; a sealing ring is pressed between the shell 1 and the shell seat 3 to ensure airtightness. sex.

The water outlet grate 5 is a bottom end cover provided with a plurality of drainage meshes 52. One side of the drainage mesh 52 is provided with a sewage diversion cavity 51 for discharging sewage after backwashing.

The column cavity 30 of the housing 3 is provided with an installation cavity for the backwash filter 6; the backwash filter 6 is located in the installation cavity;

The filter pressure plate 7 is located in the column cavity of the housing 3, between the filter element 2 and the backwash filter 6 (usually pressed on the backwash filter 6), and has a through hole on it.

The bottom of the shell seat 3 is provided with a clean water inlet 31, a backwash water inlet 32, a clean water drain 33, and a backwash drain 34; The water port 31 is connected, and the space between the inner wall of the housing 1 and the outer wall of the filter element 2 is connected to the backwash drain port 34; the backwash water inlet 32 and the clean water drain port 33 are connected to the column cavity 30.

A clean water flushing switching valve core 8 is provided below the clean water inlet 31 and the backwash water inlet 32; a clean water opening and closing valve core 9 is provided below the clean water drain port 33; the backwash drain port The bottom of 34 is provided with a sewage opening and closing valve core 10.

The adjusting turntable 4 is engaged and connected with the clean water flushing switching valve core 8, the drain water opening and closing valve core 9, and the drain water opening and closing valve core 10. By rotating the adjusting dial 4, the clean water flushing switching valve core 8, the drain water opening and closing valve core 9, and the drain water opening and closing valve core 10 can be rotated around their own axes. When rotating, the marbles at the top of the clean water flushing switching valve core 8, the purified water opening and closing valve core 9, and the waste water opening and closing valve core 10 will move, thereby allowing the marbles to block or avoid the bottom of the shell seat 3. Clean water inlet 31, backwash water inlet 32, clean water drain 33, backwash drain 34.

When using purified water normally: the marble 84 of the purified water flush switching valve core 8 blocks the backwash inlet 32, the purified water inlet 31 is connected to the water inlet pipe 11, and the water flow enters the space between the inner wall of the housing 1 and the outer wall of the filter element 2 area, and then filter and penetrate from the outer wall of the filter element 2 to the inside of the filter element 2, and then flow through the backwash filter 6 at the bottom of the filter element 2 to the clean water drain outlet 33, and then flow through the drain clean water opening and closing valve core 9, and then through the water outlet grille The drainage mesh 52 on 5 flows out.

During reverse flushing: the marble 84 of the clean water flush switching valve core 8 blocks the clean water inlet 31, the backwash water inlet 32 is connected to the water inlet pipe 11, the water flows through the backwash filter 6 and then flows into the filter core 2, and then It is flushed from the inner wall of the filter element 2 and penetrates into the interval area between the inner wall of the housing 1 and the outer wall of the filter element 2, and then flows through the backwash drain port 34 through the sewage opening and closing valve core 10 and the sewage diversion chamber 51 for discharge.

The water purification switching valve core 8 includes a water purification function valve position and a backwash function valve position. The position where the top marble 84 blocks the backwash water inlet 32 is the water purification function valve position. The top marble 84 seals the water purification function valve core 8 . The position when the clean water inlet 31 is blocked is the backwash function valve position.

The purified water inlet 31 and the purified water drain 33 are opened or closed synchronously (that is, blocked or avoided by the marbles 84 at the same time), and the backwash water inlet 32 and the backwash drain 34 are opened or closed synchronously.

Preferably, the adjustment dial 4 is an annular dial with a number of convex teeth 41 evenly distributed inside it;

The clean water flushing switching valve core 8 includes a valve body 81, a spring installation cavity 82, a spring 83, a marble 84, and a limit cover 85; a plurality of convex teeth 41 are arranged on the outer wall of the valve body 81, and the valve body 81 and The adjusting turntable 4 is meshed and connected, and the convex teeth 41 of the two are meshed and driven. The spring 83 is vertically installed in the spring installation cavity 82, and has a marble 84 on the top; a limit cover 85 is provided on the valve body 81 and the top of the marble 84, and has a water purification valve hole 86 and a flushing valve on it. Hole 87. When the water purification and flushing switching valve core 8 is rotated, the marble 84 can switch to block the water purification valve hole 86 and the flushing valve hole 87 . The bottom of the shell seat 3 corresponding to the top of the clean water flushing switching valve core 8 is provided with a clean water flushing valve core installation cavity 80; the clean water valve hole 86 is connected to the clean water inlet 31; the flushing valve hole 87 is connected to the backwash inlet. The nozzle 32 is connected and connected.

The purified water on-off valve core 9 includes a valve body 91. The outer wall of the valve body 91 is provided with a plurality of convex teeth 41, and a purified water drainage hole 92 is provided at the top. The bottom of the purified water drainage hole 92 is connected to the water outlet grille 5. Drainage mesh 52. The drain valve core installation cavity 35 is provided at the bottom of the shell seat 3 corresponding to the top of the water purification opening and closing valve core 9. The drainage valve core installation cavity 35 is provided with a spring installation cavity 2, and a spring installation cavity 2 is provided in the inner pressure of the spring installation cavity 2. 37, the top of spring two 37 is connected to marble two 38. When the purified water opening and closing valve core 9 is rotated, the second marble 38 can block the purified water drain hole 92 or avoid the purified water drain hole 92 .

The sewage discharge opening and closing valve core 10 includes a valve body 101. The outer wall of the valve body 101 is provided with a number of convex teeth. A sewage drainage hole 102 is provided at the top. The bottom of the sewage drainage hole 102 is connected to the sewage diversion chamber 51. The drain valve core installation cavity 20 is provided at the bottom of the shell seat 3 corresponding to the top of the drain valve core 10. The drain valve core installation cavity 20 is provided with a spring installation cavity three, and the spring installation cavity three is provided with a spring three 22. , the top of spring three 22 is connected to marble three 23. When the sewage drainage opening and closing valve core 10 is rotated, the three marbles 23 can block the sewage drainage hole 102 or avoid the sewage drainage hole 102 .

Preferably, the outer wall of the adjustment turntable 4 is provided with a handle to facilitate screwing.

Optionally, the second spring installation cavity can be arranged to coincide with the backwash drain port 34 , that is, the second spring 37 is disposed in the backwash drain port 34 .

The water outlet grille 5 and the housing base 3 are connected and fixed by passing fasteners such as screws through the mounting holes 53 .

The embodiments of the present utility model are described in detail above with reference to the accompanying drawings, but the utility model is not limited to the described embodiments. For those skilled in the art, various changes, modifications, substitutions and modifications can be made to these embodiments without departing from the principles and spirit of the present invention, and they still fall within the protection scope of the present invention.

Claims (10)

1. The utility model provides a back flush terminal water purifier of regulation is twisted soon, includes shell, filter core, housing base, play cascade, back flush filter piece, its characterized in that: the device also comprises an adjusting turntable;

the shell is a shell with a cavity in the middle and an opening at the bottom;

the filter element is arranged in the cavity of the shell;

the shell seat is a shell with an opening at the upper end and a column cavity in the middle; the bottom end of the shell is connected with the shell seat;

a mounting cavity for backwashing filter discs is arranged in the column cavity of the shell seat; the back flushing filter disc is arranged in the mounting cavity;

the bottom of the shell seat is provided with a purified water inlet, a back flush water inlet, a purified water outlet and a back flush water outlet;

a clean water flushing switching valve core is arranged below the clean water inlet and the backwash water inlet; a clean water discharge opening and closing valve core is arranged below the clean water discharge opening; and a sewage discharge opening and closing valve core is arranged below the backwashing water outlet.

2. The screw-on regulated backwash end water purifier of claim 1 wherein: the interval area between the inner wall of the shell and the outer wall of the filter element is communicated with the purified water inlet, and the interval area between the inner wall of the shell and the outer wall of the filter element is communicated with the backwashing water outlet; the back flush water inlet and the purified water outlet are communicated with the column cavity.

3. The screw-on regulated backwash end water purifier of claim 2 wherein: the adjusting turntable is an annular turntable, and a plurality of convex teeth are uniformly distributed in the adjusting turntable;

the adjusting turntable is in meshed transmission connection with the clean water flushing switching valve core, the clean water draining switching valve core and the sewage draining switching valve core.

4. The screw-on regulated backwash end water purifier of claim 3 wherein: the water purification flushing switching valve core comprises a water purification function valve position and a back flushing function valve position, wherein the position of the top marble for blocking the back flushing water inlet is the water purification function valve position, and the position of the top marble for blocking the water purification water inlet is the back flushing function valve position;

the clean water inlet and the clean water outlet are synchronously opened or synchronously closed, and the backwash water inlet and the backwash outlet are synchronously opened or synchronously closed.

5. The screw-regulated backwash end water purifier of any one of claims 1-4 wherein: the water purification flushing switching valve core comprises a valve body, a spring mounting cavity, a spring, a marble and a limiting cover plate; a plurality of convex teeth are uniformly distributed on the outer wall of the valve body, the valve body is connected with the adjusting turntable in a meshed manner, and the convex teeth of the valve body and the adjusting turntable are meshed for transmission; the spring is vertically arranged in the spring mounting cavity, and the top of the spring is provided with a marble; the limit cover plate is covered on the top of the valve body and the marble, and is provided with a water purifying valve hole and a flushing valve hole;

when the switching valve core is washed by rotating the purified water, the marble can switch and block the purified water valve hole and the washing valve hole;

the water purifying valve hole is communicated with the water purifying inlet, and the flushing valve hole is communicated with the back flushing inlet.

6. The screw-on regulated backwash end water purifier of claim 5 wherein: the water draining and purifying valve core comprises a valve body II, wherein a plurality of convex teeth are uniformly distributed on the outer wall of the valve body, the top of the valve body II is provided with water draining holes, and the bottoms of the water draining holes are communicated with draining meshes of the water outlet grating; the water discharge valve core is arranged at the bottom of the shell seat corresponding to the top of the water discharge valve core, a spring mounting cavity II is arranged in the water discharge valve core mounting cavity, a spring II is arranged in the spring mounting cavity II in an internal pressure mode, and the top of the spring II is connected with a marble II;

when the water draining valve core is rotated, the ball II can block the water draining hole or avoid the water draining hole;

the purified water drain hole is communicated with the purified water drain hole.

7. The screw-on regulated backwash end water purifier of claim 6 wherein: the sewage discharge on-off valve core comprises a valve body III, a plurality of convex teeth are uniformly distributed on the outer wall of the valve body III, a sewage drain hole is formed in the top of the valve body III, and the bottom of the sewage drain hole is communicated with a sewage diversion cavity; a sewage discharge valve core mounting cavity is formed in the bottom of the shell seat corresponding to the top of the sewage discharge valve core, a spring mounting cavity III is formed in the sewage discharge valve core mounting cavity, a spring III is arranged in the spring mounting cavity III in an internal pressure mode, and the top of the spring III is connected with a marble III;

when the sewage draining on-off valve core is rotated, the marble III can block the sewage draining hole or avoid the sewage draining hole;

the sewage drain hole is communicated with the back flush drain hole.

8. The screw-on regulated backwash end water purifier of claim 7 wherein: the outer wall of the adjusting turntable is provided with a hand breaking device;

it also includes a filter press;

the filter plate pressing plate is arranged in the column cavity of the shell seat and is positioned between the filter element and the back flushing filter plate, and a through hole is formed in the filter plate pressing plate.

9. The screw-on regulated backwash end water purifier of claim 8 wherein: and a sealing ring is pressed between the shell and the shell seat.

10. The screw-on regulated backwash end water purifier of claim 5 wherein: the water outlet grid is a bottom end cover provided with a plurality of drainage meshes, and one side of the drainage meshes is provided with a sewage diversion cavity for discharging sewage after backwashing.