A multifunctional filter valve for water treatment

Abstract

The present invention belongs to the technical field of water treatment valve bodies, and aims to solve the technical problem in the prior art that the effective area of ​​the water inlet and outlet holes in the valve body cannot simply and effectively reach the effective area of ​​the water inlet and outlet pipe openings outside the valve body. Based on this, a water treatment multifunctional filter valve is provided, including a valve body, a movable valve plate, a fixed valve plate and a driving device. The fixed valve plate is fixedly installed in the valve body, and the movable valve plate and the fixed valve plate are rotatably matched in the valve body. The side wall of the valve body is provided with a water inlet, a water outlet and a drain. The water treatment multifunctional filter valve described in the present invention realizes the advantages that the effective area of ​​the water inlet and outlet holes in the valve body can be freely adjusted according to needs within the effective area of ​​the water inlet and outlet pipe openings outside the valve body, and without adding auxiliary equipment, it has reached the design limit of the same functional single-body plane structure valve, and has a simple structure, reduces the use cost and production cost, improves the use efficiency, and has excellent performance.

Description

Technical Field

[0001] The invention relates to the technical field of water treatment valve bodies, and in particular to a multifunctional water treatment filter valve. Background Art

[0002] In recent years, as control valves with flat sealing structures are increasingly used in the field of water treatment, the market has recognized the structure of flat valves. Today's industrial or civil water treatment systems mostly use control valve bodies to switch flow channels. The control valves of the filtration system need to achieve functions such as filtration, backwashing, and forward flushing. The non-filtration processes such as backwashing and forward flushing of the filtration system are collectively referred to as flushing processes. Existing water treatment filter valves mainly change the direction of water flow to achieve operation, backwashing, forward flushing functions or simple operation and backwashing functions. Filter valves are generally used in industrial water treatment equipment such as carbon filtration and sand filtration, and are widely used in domestic water treatment equipment to remove impurities, residual chlorine, heavy metals, etc., improving people's water quality.

[0003] However, the current installation dimensions of the filter valve body usually have several fixed specifications. Under the same installation dimension specifications, the effective area of ​​the inlet and outlet water holes in the valve body is much lower than the effective area of ​​the inlet and outlet water pipes outside the valve body. Due to design limitations, it is impossible to better and more effectively meet the filtered water flux. Summary of the invention

[0004] The embodiment of the present invention provides a multifunctional filter valve for water treatment, which is used to solve the technical problem in the prior art that the effective area of ​​the water inlet and outlet holes in the valve body is much lower than the effective area of ​​the water inlet and outlet pipe openings outside the valve body, breaking the design limitation. Under the same installation dimensions, the area of ​​the water inlet and outlet holes in the valve body can be freely designed until it exceeds the effective area of ​​the water inlet and outlet pipe openings outside the valve body.

[0005] The embodiment of the present invention provides a multifunctional filter valve for water treatment, comprising a valve body, a movable valve disc, a fixed valve disc and a driving device, wherein the fixed valve disc is fixedly installed in the valve body, the movable valve disc and the fixed valve disc are rotatably matched in the valve body, a water inlet, a water outlet and a drain are arranged on the side wall of the valve body, and the driving device drives the movable valve disc and the fixed valve disc to cooperate to realize the functions of operation, backwashing and forward washing; the fixed valve disc is provided with a first through hole, a second through hole and a third through hole in sequence along the circumferential direction, the first through hole, the second through hole and the third through hole are all circular arc fan-shaped structures and are arranged with the same central axis, a fourth through hole is arranged at the center of the fixed valve disc, the second through hole comprises a first water outlet through hole and a second water outlet through hole which are separated from each other and are both circular arc fan-shaped, the first water outlet through hole and the second water outlet through hole are arranged with the same central axis and the first water outlet through hole is located at a position close to the axis on the inner side of the second water outlet through hole;

[0006] The valve body comprises a first filter element interface, a second filter element interface and a third filter element interface, the first filter element interface, the second filter element interface and the third filter element interface are respectively communicated with the first through hole, the second through hole and the third through hole, the drain port is arranged in an L-shape and its vertical section is arranged at the central position of the valve body, and its horizontal section extends out of the side wall of the valve body, the fourth through hole is sleeved on the top of the drain port, the second filter element interface comprises a partition beam and a first filter element water outlet interface and a second filter element water outlet interface which are divided into two parts by the partition beam, the positions of the first filter element water outlet interface and the second filter element water outlet interface respectively correspond to the first water outlet through hole and the second water outlet through hole and are respectively communicated with each other, a fourth filter element interface is arranged at the central position of the lower end of the valve body, and the fourth filter element interface is communicated with the second filter element interface;

[0007] The movable valve plate is provided with a water hole connected with the water inlet and a first groove and a second groove along the circumferential direction. The first groove and the second groove are both arc-shaped. A third groove is provided at the center of the movable valve plate. The first groove includes three first blind grooves, a second blind groove and a third blind groove which are separated from each other and arranged on the same central axis. The first blind groove is arranged on the outside of the second blind groove, and the third blind groove is arranged on the inside of the second blind groove. A first partition beam is provided between the first blind groove and the second blind groove, a second partition beam is provided between the second blind groove and the third blind groove, and the third blind groove is connected with the third groove.

[0008] Its working principle and process are as follows:

[0009] The operation process includes normal operation mode, forward wash mode and backwash mode. The driving device drives the movable valve plate to rotate to different positions and switches to different operation processes. The specific process is as follows:

[0010] In the normal operating mode, the water through hole is connected to the first through hole, the second groove is connected to the first water outlet through hole and the second water outlet through hole respectively, and the third groove is blocked correspondingly to the third through hole. The working process is: water enters the valve body from the water inlet, and enters the tank body at the lower end of the valve body through the water through hole and the first through hole in sequence, and then the water flows through the fourth filter element interface, the first filter element water outlet interface in the second filter element interface, the first water outlet through hole in sequence, enters the second groove, and enters the second water outlet through hole through the second groove, and is discharged from the water outlet, so as to realize the normal operation of the filter valve;

[0011] In the backwash mode, the water hole is connected with the first water outlet hole, the second water outlet hole is cut off from water, the first hole is connected with the third groove through the third blind groove, and the third groove is connected with the drain port. The working process is as follows: water enters the first water outlet hole from the water hole, the second water outlet hole is blocked by the second blind plate on the passive valve plate, the water flows through the first filter element water outlet interface and the fourth filter element interface in the second filter element interface into the tank body at the lower end of the valve body, the water flows back into the filter element layer through the central filter screen of the filter element, the water reaches the first filter element interface from the filter element layer, the backwash waste water reaches the first hole through the first filter element interface, and reaches the fourth hole after passing through the third blind groove and the third groove, and then is discharged from the drain port. During backwashing, the third hole is covered by the second groove to block the water flow, forming a sealed space;

[0012] In the positive wash mode, the water hole is connected with the third hole, the first water outlet hole is connected with the third groove through the third blind groove, the third groove is connected with the drain port through the fourth hole, and the second water outlet hole is blocked by the first partition beam on the passive valve plate; the working process is: water flows into the valve body from the water inlet, and passes through the water hole and the third hole in turn into the filter layer of the tank filter element at the lower end of the valve body, the water reaches the fourth filter element interface and the second filter element interface from the central filter screen, and enters the third blind groove through the first water outlet hole, and enters the third groove through the third blind groove, the water flow is finally discharged through the drain port connected with the fourth hole, realizing the positive wash process of the filter valve, during positive wash, the first hole and the second groove are matched to form a closed space, the second water outlet hole and the first blind groove are matched to form a closed space, blocking the water from being discharged from the water outlet.

[0013] Furthermore, the positions of the first filter element interface, the second filter element interface and the third filter element interface correspond one-to-one to the positions of the first through hole, the second through hole and the third through hole, respectively.

[0014] Such an arrangement is conducive to better realizing the rotational coordination between the fixed valve plate and the movable valve plate, thereby achieving more precise and stable functions.

[0015] Furthermore, the central angles of the first through hole, the second through hole and the third through hole are all 120 degrees, and the central angles of the water hole, the first groove and the second groove are all 120 degrees.

[0016] With this arrangement, the first through hole, the second through hole and the third through hole divide the effective area of ​​water inlet and outlet of the fixed valve plate into three equal parts, and the water holes, the first groove and the second groove are also arranged in three equal parts, which can better achieve the coordination between the movable valve plate and the fixed valve plate.

[0017] Furthermore, a first blind plate is provided inside the third through hole on the fixed valve plate, and the first blind plate blocks the third through hole from the fourth through hole.

[0018] Furthermore, the water through hole penetrates along the axial direction of the movable valve plate, the water through hole is in a circular sector-shaped structure, and a second blind plate is provided on the outer side of the water through hole along the radial direction of the movable valve plate.

[0019] The structure of the water hole penetrating up and down is simpler and easier to process and produce.

[0020] In summary, the beneficial effects of the present invention are as follows:

[0021] The present invention can make the effective area of ​​the water inlet and outlet holes in the structure exceed the effective area of ​​the water inlet and outlet pipe openings outside the valve body by setting the first water outlet through hole and the second water outlet through hole in cooperation with the groove of the movable valve plate, and the structure can arbitrarily design the effective area of ​​the water inlet and outlet holes in the valve body without being restricted by the installation size. Similar products are restricted by the same installation size and their sizes cannot be changed to a larger effective area of ​​the water inlet and outlet holes in the valve body. The effective area of ​​the water inlet and outlet holes in the valve body of the present application can exceed the effective area of ​​the water inlet and outlet pipe openings outside the valve body, and theoretically, this structure has reached the design limit of a single-body planar structure valve with the same function without the addition of auxiliary equipment, and the structure is relatively simple, which reduces the use cost and production cost, improves efficiency, and has excellent performance. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] Figure 1 It is a schematic diagram of the overall operating principle of the present invention;

[0023] Figure 2 It is a schematic diagram of the three-dimensional structure of the valve body in the present invention;

[0024] Figure 3 It is a top view of the overall structure of the valve body in the present invention;

[0025] Figure 4 It is a top view of the valve body of the present invention after removing the fixed valve plate and the movable valve plate;

[0026] Figure 5 for Figure 3 A-A sectional view without the moving valve plate;

[0027] Figure 6 It is a structural schematic diagram of the fixed valve plate in the present invention;

[0028] Figure 7 It is a structural schematic diagram of the movable valve plate in the present invention;

[0029] Figure 8 It is a schematic diagram of the structure of the fixed valve plate and the movable valve plate in the running state of the present invention;

[0030] Fig. 9 for Figure 8 Middle B-B section view

[0031] Fig.10It is a schematic diagram of the structure of the fixed valve plate and the movable valve plate in the backwash state of the present invention;

[0032] Fig.11 for Fig.10 Middle C-C section view;

[0033] Fig.12 It is a schematic diagram of the structure of the fixed valve plate and the movable valve plate in the positive washing state of the present invention;

[0034] Fig.13 for Fig.12 D-D section view in the middle.

[0035] In the figure: 1. valve body; 11. water inlet; 12. water outlet; 13. drain outlet; 14. first filter element interface; 15. second filter element interface; 151. partition beam; 152. first filter element water outlet interface; 153. second filter element water outlet interface; 16. third filter element interface; 17. fourth filter element interface; 2. movable valve plate; 21. water through hole; 22. first groove; 221. first blind groove; 222. second blind groove; 223. third blind groove; 23. second groove; 24. third groove; 25. second blind plate; 26. first partition beam; 27. second partition beam; 3. fixed valve plate; 31. first through hole; 32. second through hole; 321. first water outlet through hole; 322. second water outlet through hole; 33. third through hole; 34. fourth through hole; 35. first blind plate. DETAILED DESCRIPTION

[0036] Embodiment 1:

[0037] like Figure 1-Figure 13 As shown, a multifunctional filter valve for water treatment comprises a valve body 1, a movable valve disc 2, a fixed valve disc 3 and a driving device. The fixed valve disc 3 is fixedly installed in the valve body 1. The movable valve disc 2 and the fixed valve disc 3 rotate and cooperate in the valve body 1. A water inlet 11, a water outlet 12 and a water outlet 13 are provided on the side wall of the valve body 1. The driving device drives the movable valve disc 2 and the fixed valve disc 3 to cooperate to realize the functions of operation, backwashing and forward washing; the fixed valve disc 3 is provided with a first through hole 31, a second through hole 32 and a first through hole 33 in sequence along the circumferential direction. Three through holes 33, the first through hole 31, the second through hole 32 and the third through hole 33 are all arc-sector-shaped structures and are arranged with the same central axis, a fourth through hole 34 is opened at the center of the fixed valve plate 3, the second through hole 32 includes a first water outlet through hole 321 and a second water outlet through hole 322 separated from each other and both in the shape of an arc sector, the first water outlet through hole 321 and the second water outlet through hole 322 are arranged with the same central axis and the first water outlet through hole 321 is located at the inner side of the second water outlet through hole 322 close to the axis;

[0038] The valve body 1 includes a first filter element interface 14, a second filter element interface 15 and a third filter element interface 16, which are respectively connected to the first through hole 31, the second through hole 32 and the third through hole 33. The drain port 13 is L-shaped and its vertical section is arranged at the central position of the valve body 1, and its horizontal section extends out of the side wall of the valve body 1. The fourth through hole 34 is sleeved on the top of the drain port 13. The second filter element interface 15 includes a partition beam 151 and a first filter element water outlet interface 152 and a second filter element water outlet interface 153 which are divided into two parts by the partition beam 151. The positions of the first filter element water outlet interface 152 and the second filter element water outlet interface 153 correspond to the first water outlet through hole 321 and the second water outlet through hole 322, respectively, and are respectively connected accordingly. A fourth filter element interface 17 is provided at the central position of the lower end of the valve body 1, and the fourth filter element interface 17 is connected to the first filter element water outlet interface 152 on the second filter element interface 15.

[0039] A water hole 21 connected to the water inlet 11 and a first groove 22 and a second groove 23 are provided on the movable valve plate 2 in the circumferential direction. The first groove 22 and the second groove 23 are both arc-shaped. A third groove 24 is provided at the center of the movable valve plate 2. The first groove 22 includes three first blind grooves 221, a second blind groove 222 and a third blind groove 223 that are separated from each other and arranged on the same central axis. The first blind groove 221 is arranged on the outside of the second blind groove 222, and the third blind groove 223 is arranged on the inside of the second blind groove 222. A first partition beam 26 is provided between the first blind groove 221 and the second blind groove 222, a second partition beam 27 is provided between the second blind groove 222 and the third blind groove 223, and the third blind groove 223 is connected to the third groove 24.

[0040] Its working principle and process are as follows:

[0041] Its operation process includes normal operation mode, forward washing mode and backwashing mode. The driving device drives the movable valve plate 2 to rotate to different positions and switch to different operation processes. The specific process is as follows:

[0042] like Figure 8-Figure 9 As shown, in the normal operating mode, the water hole 21 is connected with the first through hole 31, the second groove 23 is connected with the first water outlet through hole 321 and the second water outlet through hole 322 respectively, and the third groove 24 is blocked with the third through hole 33 accordingly. The working process is: water enters the valve body 1 from the water inlet 11, and enters the tank body at the lower end of the valve body 1 through the water hole 21 and the first through hole 31 in sequence, and then the water flows through the fourth filter element interface 17, the first filter element water outlet interface 152 in the second filter element interface 15, and the first water outlet through hole 321 in sequence to enter the second groove 23, and enters the second water outlet through hole 322 through the second groove 23, and is discharged from the water outlet 12, so as to realize the normal operation of the filter valve;

[0043] like Figure 10-11 As shown, in the backwash mode, the water hole 21 is connected to the first water outlet hole 321, the second water outlet hole 322 is cut off, the first hole 31 is connected to the third groove 24 through the third blind groove 223, and the third groove 24 is connected to the drain port 13. The working process is: water enters the first water outlet hole 321 from the water hole 21, the second water outlet hole 322 is blocked by the second blind plate 25 on the passive valve plate 2, and the water flows through the first filter element outlet interface 15 in the second filter element interface 15. 52. Then, the water flows through the fourth filter element interface 17 and enters the tank body at the lower end of the valve body 1. The water flows through the central filter screen of the filter element and then flows back to the filter element layer. The water reaches the first filter element interface 14 from the filter element layer. The backwashed waste water reaches the first through hole 31 through the first filter element interface 14, and reaches the fourth through hole 34 after passing through the third blind groove 223 and the third groove 24, and then is discharged from the drain port 13. During backwashing, the third through hole 33 is covered by the second groove 23, blocking the water flow and forming a sealed space.

[0044] like Figure 12-13 As shown, in the forward washing mode, the water hole 21 is connected with the third through hole 33, the first water outlet through hole 321 is connected with the third groove 24 through the third blind groove 223, the third groove 24 is connected with the drain port 13 through the fourth through hole 34, and the second water outlet through hole 322 is blocked by the first partition beam 26 on the passive valve plate 2 to cut off the water; the working process is: water flows into the valve body 1 from the water inlet 11, and enters the filter layer of the tank filter element at the lower end of the valve body 1 through the water hole 21 and the third through hole 33 in turn, and the water flows from the central filter screen through the fourth The filter element interface 17 reaches the first filter element water outlet interface 152 in the second filter element interface 15, and enters the third blind groove 223 through the first water outlet through hole 321, and enters the third groove 24 through the third blind groove 223. The water flow is finally discharged through the drain port 13 connected to the fourth through hole 34, realizing the positive washing process of the filter valve. During positive washing, the first through hole 31 and the second groove 23 are matched to form a closed space, and the second water outlet through hole 322 and the first blind groove 221 are matched to form a closed space, blocking water from being discharged from the water outlet 12.

[0045] In another embodiment of the present invention, Figure 4 and Figure 6 As shown, the positions of the first filter element interface 14 , the second filter element interface 15 and the third filter element interface 16 correspond to the positions of the first through hole 31 , the second through hole 32 and the third through hole 33 , respectively.

[0046] Such an arrangement is conducive to better realizing the rotational coordination between the fixed valve plate 3 and the movable valve plate 2, and realizing a more precise and stable function.

[0047] In another embodiment of the present invention, Figure 6As shown, the central angles of the first through hole 31 , the second through hole 32 and the third through hole 33 are all 120 degrees, and the central angles of the water through hole 21 , the first groove 22 and the second groove 23 are all 120 degrees.

[0048] In this way, the first through hole 31, the second through hole 32 and the third through hole 33 divide the effective area of ​​water inlet and outlet of the fixed valve plate 3 into three equal parts, and the water holes, the first groove 22 and the second groove 23 are also arranged in three equal parts, which can better achieve the coordination between the movable valve plate 2 and the fixed valve plate 3.

[0049] In another embodiment of the present invention, Figure 6 As shown, a first blind plate 35 is provided inside the third through hole 33 on the fixed valve plate 3 , and the first blind plate 35 blocks the third through hole 33 from the fourth through hole 34 .

[0050] In another embodiment of the present invention, Figure 7 As shown, the water hole 21 penetrates along the axial direction of the movable valve plate 2 , and the water hole 21 is in a circular sector-shaped structure. A second blind plate 25 is provided on the outer side of the water hole 21 along the radial direction of the movable valve plate 2 .

[0051] The vertical through-structure of the water hole 21 is simpler and easier to process and produce.

[0052] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention, rather than to limit it. Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art should understand that they can still modify the technical solutions described in the aforementioned embodiments, or replace some or all of the technical features therein with equivalents. However, these modifications or replacements do not cause the essence of the corresponding technical solutions to deviate from the scope of the technical solutions of the embodiments of the present invention.

Claims

1. A multifunctional filter valve for water treatment, comprising a valve body, a movable valve disc, a fixed valve disc and a driving device, wherein the fixed valve disc is fixedly installed in the valve body, the movable valve disc and the fixed valve disc are rotatably matched in the valve body, a water inlet, a water outlet and a drain are arranged on the side wall of the valve body, and the driving device drives the movable valve disc and the fixed valve disc to cooperate to realize the functions of operation, backwashing and forward washing; characterized in that: The fixed valve plate is provided with a first through hole, a second through hole and a third through hole in sequence along the circumferential direction, the first through hole, the second through hole and the third through hole are all circular arc fan-shaped structures and are arranged with the same central axis, a fourth through hole is provided at the center of the fixed valve plate, the second through hole includes a first water outlet through hole and a second water outlet through hole separated from each other and both in the shape of circular arc fans, the first water outlet through hole and the second water outlet through hole are arranged with the same central axis and the first water outlet through hole is located at the inner side of the second water outlet through hole close to the axis; The valve body comprises a first filter element interface, a second filter element interface and a third filter element interface, the first filter element interface, the second filter element interface and the third filter element interface are communicated with the first through hole, the second through hole and the third through hole respectively, the drain port is arranged in an L-shape and its vertical section is arranged at the central position of the valve body, and its horizontal section extends out of the side wall of the valve body, the fourth through hole is sleeved on the top of the drain port, the second filter element interface comprises a partition beam and a first filter element water outlet interface and a second filter element water outlet interface which are divided into two parts by the partition beam, the positions of the first filter element water outlet interface and the second filter element water outlet interface correspond to the first water outlet through hole and the second water outlet through hole respectively and are communicated with each other accordingly, a fourth filter element interface is arranged at the central position of the lower end of the valve body, and the fourth filter element interface is communicated with the second filter element interface; the positions of the first filter element interface, the second filter element interface and the third filter element interface correspond to the positions of the first through hole, the second through hole and the third through hole respectively; The movable valve plate is provided with a water through hole connected with the water inlet and a first groove and a second groove along the circumferential direction. The first groove and the second groove are both arc-shaped. A third groove is provided at the center of the movable valve plate. The first groove includes three first blind grooves, a second blind groove and a third blind groove that are separated from each other and arranged with the same central axis. The first blind groove is arranged on the outside of the second blind groove, and the third blind groove is arranged on the inside of the second blind groove. A first partition beam is provided between the first blind groove and the second blind groove, a second partition beam is provided between the second blind groove and the third blind groove, and the third blind groove is connected with the third groove; the central angles of the first through hole, the second through hole and the third through hole are all 120 degrees, and the central angles of the water through hole, the first groove and the second groove are all 120 degrees.

2. The multifunctional filter valve for water treatment according to claim 1, characterized in that: A first blind plate is provided inside the third through hole on the fixed valve plate, and the first blind plate blocks the third through hole from the fourth through hole.

3. The multifunctional filter valve for water treatment according to claim 1, characterized in that: The water through hole penetrates along the axial direction of the movable valve plate, and the water through hole is in a circular sector-shaped structure. A second blind plate is provided on the outer side of the water through hole along the radial direction of the movable valve plate.

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