A multi-valve softening water plant

Abstract

The present application belongs to the technical field of water treatment equipment, and relates to a multi-valve body softened water equipment, which comprises a water production valve body, a cleaning valve body and a support pipe; the water production valve body is internally rotatably provided with a first movable valve plate, and the rotation of the first movable valve plate realizes the functions of water production and temporary plugging; the cleaning valve body is provided with a blowdown port, and the support pipe is provided with a first salt suction port and a second salt suction port; the cleaning valve body is internally rotatably provided with a second movable valve plate, and the rotation of the second movable valve plate realizes the functions of backwashing, regeneration, water injection into a salt tank and forward washing; the support pipe is internally provided with a first flow channel, a second flow channel, a third flow channel and a fourth flow channel, the second flow channel is internally provided with a first jet device connected with the first salt suction port, the fourth flow channel is internally provided with a second jet device connected with the second salt suction port, and check valves are connected with the inlet of the second jet device and the second salt suction port. The present application can sufficiently suck salt water regenerants through the two salt suction ports, and improve the regeneration effect and regeneration efficiency.

Description

TECHNICAL FIELD

[0001] The present application belongs to the technical field of water treatment equipment, and relates to a multi-valve-body softened water equipment. BACKGROUND

[0002] Softened water refers to natural water containing a small amount of soluble magnesium salt and calcium salt, or hard water treated by softening. The softened water is suitable for a wide range of fields such as bathroom, kitchen, laundry, heating, boiler, central air conditioning equipment water supply, etc. The function of the softened water equipment is mainly to reduce the hardness of water by adsorbing calcium and magnesium ions in water in ion exchange resin. The principle is that the sodium ions contained in the resin exchange with calcium ions and magnesium ions in water. However, when the resin is saturated, it will be invalid, and needs to be regenerated and activated. The regeneration liquid uses sodium chloride (salt), and the salt liquid (sodium chloride solution) is taken from the salt tank into the resin layer of the softened water equipment to replace the calcium and magnesium ions of the resin, which are discharged through waste water during backwashing, so that the resin restores its original exchange capacity. Therefore, the softened water equipment usually needs to have the functions of softening, backwashing, salt absorption regeneration, salt tank water replenishment, and forward flushing.

[0003] The existing double-valve-body softened water equipment only has one salt suction port, and the salt suction efficiency is low. When the softened water equipment is large, the regeneration process is slow, and the regeneration effect is poor. In addition, in the double-valve-body softened water equipment, auxiliary equipment needs to be connected externally, which increases the use cost, or there is no auxiliary equipment, and the overall volume is large. SUMMARY

[0004] The present application provides a multi-valve-body softened water equipment to solve the technical problem that the existing softened water equipment has poor regeneration effect when only one salt suction port is provided, and the main body of the equipment is large in volume and high in manufacturing cost when there is no corresponding auxiliary equipment at the salt suction port and the water outlet.

[0005] To solve the above problems, the multi-valve-body softened water equipment provided by the present application adopts the following technical solution:

[0006] The multi-valve-body softened water equipment comprises a water production valve body, a cleaning valve body, and a support pipe. The water production valve body is provided with a water inlet, a water outlet, an upper tank communication port, and a lower tank communication port. The cleaning valve body is provided with a blowdown port. The support pipe is provided with a first salt suction port and a second salt suction port.

[0007] The water production valve body has a first valve inner cavity and a first valve outer cavity that are in communication with each other. The first valve outer cavity is in communication with the water outlet. The first valve inner cavity comprises a chamber one and a chamber two that are separated from each other. The chamber one is in communication with the upper tank communication port. The chamber two is in communication with the lower tank communication port and the water outlet. A first valve disc is rotatably and sealingly assembled in the first valve inner cavity.

[0008] The cleaning valve body has a second valve inner cavity and a second valve outer cavity communicated with the first valve outer cavity, the second valve inner cavity comprises a central blowdown cavity coaxially arranged and a working cavity, a backwash cavity, a regeneration cavity, a water injection cavity and a forward wash cavity arranged along the circumferential direction of the central blowdown cavity, the working cavity is blocked at the top, and the central blowdown cavity is communicated with the blowdown port;

[0009] The support pipe has a third flow channel and first, second, fourth flow channels separated from the third flow channel, the first flow channel is communicated with the regeneration cavity, the second flow channel is communicated with the water injection cavity, the third flow channel is communicated with the backwash cavity, and the fourth flow channel is communicated with the forward wash cavity; the third flow channel and the fourth flow channel both extend to the cavity wall of the first valve inner cavity, so that the third flow channel is communicated with the chamber two and the fourth flow channel is communicated with the chamber one; the first jet flow device connected with the first salt suction port is arranged in the second flow channel, and the second jet flow device connected with the second salt suction port is arranged in the fourth flow channel, and check valves are arranged at the inlet of the second jet flow device and the second salt suction port;

[0010] The upper part of the second valve inner cavity is rotationally sealed and assembled with a second valve disc, the second valve disc is provided with a central blowdown blind groove coaxially arranged and a water inlet notch, a blowdown guide-through blind groove and a regeneration guide-through blind groove arranged along the circumference of the central blowdown blind groove, the blowdown guide-through blind groove is communicated with the central blowdown blind groove, and the regeneration guide-through blind groove is adjacent to the water inlet notch; the regeneration guide-through blind groove is used for communicating the water injection cavity with the forward wash cavity when the cleaning valve body is in a regeneration state;

[0011] The first valve disc can communicate and block the water flow path between the first valve inner cavity and the first valve outer cavity in its rotation stroke, and can respectively block and communicate the water flow path between the third flow channel and the fourth flow channel and chamber one and chamber two, so that the water production valve body is respectively in a water production state and a blocking state.

[0012] Further, the first moving valve plate is a columnar integrated structure, two sealing grooves are arranged on the circumferential direction of the first moving valve plate, one sealing pad is clamped in each sealing groove, and the two sealing grooves are distributed on the diametrically opposite sides of the first moving valve plate; a cross-shaped partition plate is arranged on the first moving valve plate between the two sealing grooves, the cross-shaped partition plate extends to the end face of one side of the first moving valve plate in the axial direction of the first moving valve plate, so as to separate the space between the two sealing grooves into a first water passing channel and a second water passing channel which are separated from each other in the transverse direction of the water production valve body, the first water passing channel is provided with two channels which are separated from each other in the longitudinal direction of the water production valve body, the second water passing channel is provided with two channels which are separated from each other in the longitudinal direction of the water production valve body, and the first water passing channel and the second water passing channel penetrate the outer circumference of the first moving valve plate; the cavity wall of the first valve cavity is provided with a water outlet communication port which is in communication with the water outlet and a water inlet communication port which is in communication with the water inlet; in the working state of the water production valve body, one of the first water passing channel and the second water passing channel is in communication with the water inlet communication port, the other is in communication with the water outlet communication port, and one of the sealing pads blocks the third flow channel and the fourth flow channel; in the blocking state of the water production valve body, the two first water passing channels or the two second water passing channels are in communication with the third flow channel and the fourth flow channel respectively, and the two sealing pads block the water inlet communication port and the water outlet communication port respectively.

[0013] Preferably, the axial end face of the first moving valve plate away from the cross-shaped partition plate is flush with the end face at the cavity opening of the first valve cavity.

[0014] Further, a one-shaped partition plate is arranged between the chamber one and the chamber two, the first fixed valve plate is fixed on the one-shaped partition plate, the first fixed valve plate is an integrated structure, including a ring beam and a cross-shaped partition beam arranged in the center of the ring beam, the cross-shaped partition beam is fixed on the one-shaped partition plate in a sleeved manner, and the space in the ring beam is divided into two first water passing holes in communication with the chamber one and two second water passing holes in communication with the chamber two; the cross-shaped partition beam is in frictional contact with the cross-shaped partition plate.

[0015] Further, the central angle corresponding to the water inlet gap is 60°, the central angle corresponding to the blind groove of the blowdown guide channel is 60° or 90°, the central angle corresponding to the regeneration guide channel ranges from 60° to 90°, the central angle corresponding to the backwashing cavity ranges from 90° to 120°, the central angle corresponding to the working cavity is 60°, the central angle corresponding to the water injection cavity ranges from 30° to 60°, the central angle corresponding to the regeneration cavity ranges from 30° to 60°, and the central angle corresponding to the forward washing cavity ranges from 60° to 90°.

[0016] One of the solutions is that the central angles corresponding to the blowdown guide blind groove, the regeneration guide blind groove and the regeneration cavity are all 60°, the central angle corresponding to the forward washing cavity is 90°, and the first blind groove, the second blind groove and the third blind groove corresponding to the central angles of 30° between the water inlet gap and the blowdown guide blind groove are arranged on the second dynamic valve plate, and the fourth blind groove, the fifth blind groove and the sixth blind groove corresponding to the central angles of 30° between the regeneration guide blind groove and the blowdown guide blind groove are arranged on the second dynamic valve plate.

[0017] Another solution is that the central angles corresponding to the blowdown guide blind groove, the regeneration guide blind groove and the regeneration cavity are all 60°, the central angle corresponding to the forward washing cavity is 90°, and the central angle corresponding to the water injection cavity is 30°, and the first blind groove, the second blind groove and the third blind groove corresponding to the central angles of 30° between the water inlet gap and the blowdown guide blind groove are arranged on the second dynamic valve plate, and the fourth blind groove, the fifth blind groove and the sixth blind groove corresponding to the central angles of 30° between the regeneration guide blind groove and the blowdown guide blind groove are arranged on the second dynamic valve plate.

[0018] Further, the second valve inner cavity is fixed with the second fixed valve plate which is in sealing cooperation with the rotation of the second dynamic valve plate, and the second fixed valve plate is provided with the working blind plate, the backwashing through hole, the regeneration through hole, the water injection through hole and the forward washing through hole corresponding to the working cavity, the backwashing cavity, the regeneration cavity, the water injection cavity and the forward washing cavity respectively, and the working blind plate blocks the working cavity.

[0019] Further, the water production valve body, the cleaning valve body and the support pipe are all formed by injection molding.

[0020] Further, the water inlet and the water outlet are respectively arranged on the transverse two sides of the water production valve body, the axes of the water inlet and the water outlet coincide, the upper tank communication port and the lower tank communication port are respectively arranged on the longitudinal two sides of the water production valve body, the axes of the upper tank communication port and the lower tank communication port coincide and are perpendicular to the axes of the water inlet and the water outlet.

[0021] The beneficial effects of the present application are:

[0022] 1. The multi-valve body softening water equipment has two salt suction ports, and when in the regeneration state, the two salt suction ports can simultaneously suck the salt water regenerant, the salt water regenerant is more sufficient, the concentration of the salt water regenerant in the treatment tank can be quickly increased, and the regeneration efficiency of the multi-valve body softening water equipment can be improved, the regeneration effect is more remarkable, the regeneration demand of the large water treatment equipment can be met, and the regenerant is saved.

[0023] 2. The multi-valve body softening water equipment can realize the synchronous performance of the salt tank water supplement and the forward washing, time is more saved. In addition, the check valve is arranged at the salt suction port, the functions of salt suction and water injection can be coordinated, an additional auxiliary electric valve is not needed, and the use cost is lower.

[0024] 3、The multi-valve body softening water equipment of the present application adopts the first movable valve plate with the cylindrical seal gasket structure, and only by the rotation of the first movable valve plate itself, the water production and plugging of the water production valve body can be realized, and no external valve is needed at the water outlet, which is more cost-saving.

[0025] 4、The cleaning valve body and the second movable valve plate are both based on the structure of twelve equal parts, and the angles of the regeneration cavity, the water injection cavity and the washing cavity can be diversified designed according to the actual needs, and accordingly, the angles of the pollution guide blind groove and the regeneration guide blind groove on the second movable valve plate can also be diversified designed, and at the same time, when the cleaning valve body works, the rotation angle of the second movable valve plate can also be adjusted differently to adapt to different needs.

[0026] 5、Compared with the existing double-valve body softening water equipment, under the conditions of excellent comprehensive performance such as water area, softening effect and water yield, the volume of the multi-valve body softening water equipment of the present application is smaller, which can save the manufacturing cost. BRIEF DESCRIPTION OF DRAWINGS

[0027] The above and other objects, features and advantages of the present application will become more apparent from the following detailed description read in conjunction with the accompanying drawings, in which several embodiments of the present application are illustrated by way of example and not limitation. In the drawings, like reference numerals refer to like elements throughout, and in which:

[0028] Figure 1 is a schematic diagram of the overall structure of the multi-valve body softening water equipment of the present application;

[0029] Figure 2 is a schematic diagram of the partial structure of the multi-valve body softening water equipment of the present application;

[0030] Figure 3 is a planar top view schematic diagram of the valve body part in Example One of the multi-valve body softening water equipment of the present application;

[0031] Figure 4 is a schematic diagram of two different views of the first movable valve plate in Example One of the multi-valve body softening water equipment of the present application;

[0032] Figure 5 is a schematic diagram of the structure of the first fixed valve plate in Example One of the multi-valve body softening water equipment of the present application;

[0033] Figure 6 is a schematic diagram of the first movable valve plate in Example One of the multi-valve body softening water equipment of the present application; Figure 4

[0034] Figure 7 is a schematic diagram of the structure of the second fixed valve plate in Example One of the multi-valve body softening water equipment of the present application; ​

[0035] Figure 8 This is a schematic diagram of the structure of the second moving valve plate in Embodiment 1 of the multi-valve body water softening device of the present invention;

[0036] Figure 9 This is a three-dimensional schematic diagram of the valve body portion (showing the first fixed valve plate) in Embodiment 1 of the multi-valve body water softening device of the present invention;

[0037] Figure 10 This is a cross-sectional view of the valve body portion in Embodiment 1 of the multi-valve water softening device of the present invention. Figure 1 (Displaying the first fixed valve plate);

[0038] Figure 11 This is a cross-sectional view of the valve body portion in Embodiment 1 of the multi-valve water softening device of the present invention. Figure 2 ;

[0039] Figure 12 This is a cross-sectional view of the valve body portion in Embodiment 1 of the multi-valve water softening device of the present invention. Figure 3 ;

[0040] Figure 13 This is a cross-sectional view of the valve body portion in Embodiment 1 of the multi-valve water softening device of the present invention. Figure 4 ;

[0041] Figure 14 This is a schematic diagram of the water production valve body in the water production state in Embodiment 1 of the multi-valve body water softening equipment of the present invention.

[0042] Figure 15 for Figure 14 Horizontal sectional view;

[0043] Figure 16 This is a schematic diagram showing one position of the second moving valve plate when the cleaning valve body is in the backwashing state in Embodiment 1 of the multi-valve body water softening device of the present invention;

[0044] Figure 17 for Figure 11 Horizontal sectional view;

[0045] Figure 18 This is a schematic diagram showing another position of the second moving valve plate when the cleaning valve body is in the backwashing state in Embodiment 1 of the multi-valve body water softening device of the present invention;

[0046] Figure 19 for Figure 18 Horizontal sectional view;

[0047] Figure 20 This is a schematic diagram of the cleaning valve body in the regeneration state in Embodiment 1 of the multi-valve body water softening equipment of the present invention.

[0048] Figure 21 Figure 1 is a perspective view of the multi-valve softening water device according to the present application; Figure 20 Figure 2 is a horizontal sectional view of the multi-valve softening water device according to the present application;

[0049] Figure 22 Figure 3 is a vertical sectional view of the multi-valve softening water device according to the present application; Figure 20

[0050] Figure 23 Figure 4 is a schematic view showing the position of the second movable valve plate when the cleaning valve is in the state of being washed positively in the embodiment one of the multi-valve softening water device according to the present application;

[0051] Figure 24 Figure 5 is a horizontal sectional view of the multi-valve softening water device according to the present application; Figure 23

[0052] Figure 25 Figure 6 is a schematic view showing the position of the second movable valve plate when the cleaning valve is in the state of being washed negatively in the embodiment one of the multi-valve softening water device according to the present application;

[0053] Figure 26 Figure 7 is a horizontal sectional view of the multi-valve softening water device according to the present application; Figure 25

[0054] Figure 27 Figure 8 is a schematic view showing the structure of the valve body part in the embodiment two of the multi-valve softening water device according to the present application;

[0055] Figure 28 Figure 9 is a schematic view showing the structure of the second movable valve plate in the embodiment two of the multi-valve softening water device according to the present application;

[0056] Figure 29 Figure 10 is a schematic view showing the structure of the second fixed valve plate in the embodiment two of the multi-valve softening water device according to the present application;

[0057] Figure 30 Figure 11 is a horizontal sectional view of the multi-valve softening water device according to the present application when the water producing valve body is in the state of producing water;

[0058] Figure 31 Figure 12 is a horizontal sectional view showing one of the positions of the second movable valve plate when the cleaning valve is in the state of being washed negatively in the embodiment two of the multi-valve softening water device according to the present application;

[0059] Figure 32 Figure 13 is a horizontal sectional view showing the other position of the second movable valve plate when the cleaning valve is in the state of being washed negatively in the embodiment two of the multi-valve softening water device according to the present application;

[0060] Figure 33 Figure 14 is a schematic view of the cleaning valve when it is in the state of being regenerated in the embodiment two of the multi-valve softening water device according to the present application;

[0061] Figure 34 Figure 15 is a horizontal sectional view of the multi-valve softening water device according to the present application; Figure 33

[0062] ​​​​Figure 35 Fig. 2 is a schematic view of the water softening device of the present application in which the cleaning valve body is in the water injection state;

[0063] Figure 36 Fig. 3 is a horizontal sectional view of the water softening device of the present application in which the cleaning valve body is in the water injection state; Figure 35

[0064] Figure 37 Fig. 4 is a schematic view of the water softening device of the present application in which the cleaning valve body is in the forward washing state;

[0065] Figure 38 Fig. 5 is a horizontal sectional view of the water softening device of the present application in which the cleaning valve body is in the forward washing state. Figure 37

[0066] BRIEF DESCRIPTION OF THE DRAWINGS

[0067] Fig. 1 Fig. 2 Fig. 3 Fig. 4 Fig. 51, water production valve body; 2, cleaning valve body; 3, support pipe; 4, first driving device; 5, second driving device; 6, water inlet; 7, water outlet; 8, upper tank body communication port; 9, lower tank body communication port; 10, blowdown port; 11, first salt suction port; 12, second salt suction port; 13, first valve fixed plate; 14, second valve fixed plate; 15, first valve moving plate; 16, second valve moving plate; 17, chamber one; 18, chamber two; 19, water inlet communication port; 20, water outlet communication port; 21, valve body communication port; 22, first flow channel; 23, second flow channel; 24, third flow channel; 25, fourth flow channel; 26, first jet flow device; 27, second jet flow device; 28, jet flow device check valve; 29, working chamber; 30, backwashing chamber; 31, regeneration chamber; 32, water injection chamber; 33, forward washing chamber; 34, central blowdown chamber; 35, working blind plate; 36, backwashing through hole; 37, regeneration through hole; 38, water injection through hole; 39, forward washing through hole; 40, central blowdown blind groove; 41, regeneration guide through blind groove; 42, blowdown guide through blind groove; 43, water inlet gap; 44, first blind groove; 45, second blind groove; 46, third blind groove; 47, fourth blind groove; 48, fifth blind groove; 49, sixth blind groove; 50, support leg; 51, central hole; 52, second valve fixed plate; 53, second valve moving plate; 54, linear-shaped partition plate; 55, cross-shaped partition beam; 56, sealing groove; 57, sealing gasket; 58, first water passage; 59, second water passage; 60, cross-shaped partition plate; 61, first water passage hole; 62, second water passage hole; 63, ring beam.

[0068] ​The reference numerals in the attached drawings of Embodiment 2 are as follows: 201, cleaning valve body; 202, backwash chamber; 203, forward wash chamber; 204, working chamber; 205, regeneration chamber; 206, water injection chamber; 207, first blind chamber; 208, second blind chamber; 209, backwash through hole; 210, working blind plate; 211, forward wash through hole; 212, regeneration through hole; 213, water injection through hole; 214, first water passage hole; 215, second water passage hole; 216, central drain blind groove; 217, regeneration guide blind groove; 218, drain guide blind groove; 219, water inlet notch; 220, first blind groove; 221, second blind groove; 222, second moving valve plate; 223, second fixed valve plate; 224, third blind groove; 225, central hole; 226, central drain chamber. Detailed Implementation

[0069] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Those skilled in the art should understand that the embodiments described below are only some, not all, of the embodiments disclosed. All other embodiments obtained by those skilled in the art based on the embodiments of the present invention without creative effort are within the scope of protection of the present invention.

[0070] The principles and spirit of the present invention will be explained in detail below with reference to several representative embodiments.

[0071] Example 1 of the multi-valve body water softening device provided by the present invention:

[0072] like Figure 1 As shown, the multi-valve water softening equipment includes a water production valve body 1, a cleaning valve body 2, and a support pipe 3, which are injection molded together. Multiple support legs 50 are detachably connected to the water production valve body 1 to support and install the multi-valve water softening equipment on the side of the treatment tank.

[0073] like Figure 3 As shown, the product water valve body 1 is equipped with an inlet 6, an outlet 7, an upper tank connection port 8, and a lower tank connection port 9. The inlet 6 and outlet 7 are located on opposite sides of the product water valve body 1, with their axes coinciding. The upper tank connection port 8 and lower tank connection port 9 are located on opposite sides of the product water valve body 1, with their axes coinciding and perpendicular to the axes of the inlet 6 and outlet 7. The upper tank connection port 8 is connected to the upper inlet of the treatment tank via a pipe, and the lower tank connection port 9 is connected to the lower outlet of the tank via a pipe.

[0074] The interior of the product water valve body 1 has a first valve inner cavity and a first valve outer cavity 13 arranged coaxially, such as Figure 3 As shown, the outer cavity 13 of the first valve is connected to the inlet 6; as Figure 9As shown, the cavity wall of the first valve inner cavity is provided with a water outlet communication port 20 corresponding to the water outlet 7 and a water inlet communication port 19 corresponding to the water inlet 6. A one-word partition plate 54 is arranged in the first valve inner cavity to divide the space in the first valve inner cavity into two chambers, i.e. chamber one 17 and chamber two 18. Figure 10 As shown, the chamber one 17 is in communication with the upper communication port 8 of the tank body, and Figure 11 As shown, the chamber two 18 is in communication with the lower communication port 9 of the tank body and the water outlet 7. The center of the one-word partition plate 54 has a protrusion, and the first fixed valve plate 15 is sleeved and fixed on the protrusion. The first fixed valve plate 15 is an integrated columnar structure, including a ring beam 63 and a cross-shaped partition beam 55 arranged at the center of the ring beam 63. The center of the cross-shaped partition beam 55 is provided with a circular hole, which is exactly sleeved on the protrusion of the one-word partition plate 54, so as to realize the fixation of the first fixed valve plate 15 in the first valve inner cavity. At this time, the cross-shaped partition beam 55 is in contact with the one-word partition plate 54. The cross-shaped partition beam 55 divides the space in the ring beam 63 into two first water passages 61 in communication with the chamber one 17 and two second water passages 62 in communication with the chamber two 18.

[0075] The first fixed valve plate 15 is rotatably sealed with the first movable valve plate 16. As shown in Figure 4 and Figure 6 The first movable valve plate 16 is a columnar integrated structure. Two sealing grooves 56 are arranged in the circumferential direction of the first movable valve plate 16, and each sealing groove 56 is clamped with a sealing pad 57. The two sealing grooves 56 are distributed on the diametrically opposite sides of the first movable valve plate 16. A cross-shaped partition plate 60 is arranged between the two sealing grooves 56 on the first movable valve plate 16. The cross-shaped partition beam 55 of the first fixed valve plate 15 is in frictional contact with the cross-shaped partition plate 60 on the first movable valve plate 16. The cross-shaped partition plate 60 extends along the axis direction of the first movable valve plate 16 to the end face of one side of the first movable valve plate 16 in the axial direction. The longitudinal plate segment of the cross-shaped partition plate 60 divides the space between the two sealing grooves 56 into two water passages that are not in communication with each other. The transverse plate segment of the cross-shaped partition plate 60 further divides the two water passages into two first water passages 58 and two second water passages 59 that are separated from the two first water passages 58. The two first water passages 58 are separated from each other in the longitudinal direction of the water production valve body 1, and the two second water passages 59 are separated from each other in the longitudinal direction of the water production valve body 1. The first water passages 58 and the second water passages 59 both penetrate the outer circumference of the first movable valve plate 16 in the longitudinal direction of the water production valve body 1.

[0076] The cleaning valve body 2 is provided with a blowdown port 10, and the cleaning valve body 2 has a second valve inner cavity and a second valve outer cavity 14. As shown in Figure 9As shown, valve body communication ports 21 are formed on the cavity walls of the first and second valve outer cavities 13 and 14 to communicate the first and second valve outer cavities 13 and 14. As shown in Figure 3 As shown, the second valve inner cavity includes a coaxially arranged central blowdown cavity 34 and, in sequence along the circumferential direction of the central blowdown cavity 34, a working cavity 29, a backwash cavity 30, a regeneration cavity 31, a water injection cavity 32, and a forward wash cavity 33, with the central blowdown cavity 34 being in communication with the blowdown port 10. As shown in Figure 22 As shown, a second fixed valve plate 52 is fixed above the second valve inner cavity, and a second movable valve plate 53 is rotatably and sealingly assembled above the second fixed valve plate 52.

[0077] As shown in Figure 7 As shown, the second fixed valve plate 52 is provided with a central hole 51 and, along the circumferential direction of the central hole 51, a working blind plate 35, a backwash through hole 36, a regeneration through hole 37, a water injection through hole 38, and a forward wash through hole 39 corresponding to the working cavity 29, the backwash cavity 30, the regeneration cavity 31, the water injection cavity 32, and the forward wash cavity 33, respectively, and the working blind plate 35 blocks the working cavity 29.

[0078] As shown in Figure 8 As shown, the second movable valve plate 53 is provided with a coaxially arranged central blowdown blind groove 40 and, along the circumferential direction of the central blowdown blind groove 40, a water inlet notch 43, a blowdown guide-through blind groove 42, a regeneration guide-through blind groove 41, a first blind groove 44, a second blind groove 45, a third blind groove 46, a fourth blind groove 47, a fifth blind groove 48, and a sixth blind groove 49. Among them, the blowdown guide-through blind groove 42 is in communication with the central blowdown blind groove 40, and the regeneration guide-through blind groove 41 is adjacent to the water inlet notch 43.

[0079] In this embodiment, the cleaning valve body 2, the second fixed valve plate 52, and the second movable valve plate 53 are all designed based on a twelve-equal-division structure. Among them, as shown in Figure 3 and Figure 7 As shown, the central angles corresponding to the regeneration cavity 31 and the regeneration through hole 37 are both 60°, the central angles corresponding to the backwash cavity 30 and the backwash through hole 36 are both 120°, the central angles corresponding to the water injection cavity 32 and the water injection through hole 38 are both 30°, the central angles corresponding to the forward wash cavity 33 and the forward wash through hole 39 are both 90°, and the central angles corresponding to the working cavity 29 and the working blind plate 35 are both 60°. As shown in Figure 8 As shown, the central angles corresponding to the blowdown guide-through blind groove 42 and the regeneration guide-through blind groove 41 are both 60°; the first blind groove 44, the second blind groove 45, and the third blind groove 46 are located between the water inlet notch 43 and the blowdown guide-through blind groove 42 and correspond to central angles of 30°, and the fourth blind groove 47, the fifth blind groove 48, and the sixth blind groove 49 are located between the regeneration guide-through blind groove 41 and the blowdown guide-through blind groove 42 and correspond to central angles of 30°.

[0080] As shown in Figure 2As shown, the multi-valve body softening water device comprises a first driving device 4 and a second driving device 5, which are motors, and the two motors drive the first movable valve plate 16 and the second movable valve plate 53 to rotate through corresponding gears and transmission rods. This part of structure is prior art and will not be described in detail here.

[0081] The support pipe 3 is connected with the water production valve body 1 and the cleaning valve body 2, and the support pipe 3 is supported on the corresponding pipeline of the tank lower communication port 9 through a plurality of support ribs. Figure 13 As shown, the space in the support pipe 3 is divided into four flow channels, which are the third flow channel 24 and the first flow channel 22, the second flow channel 23 and the fourth flow channel 25 separated from the third flow channel 24. Figure 10 、 Figure 11 and Figure 12 As shown, the first flow channel 22 communicates with the regeneration cavity 31, the second flow channel 23 communicates with the water injection cavity 32, the fourth flow channel 25 communicates with the forward washing cavity 33, and the third flow channel 24 communicates with the backwashing cavity 30. The third flow channel 24 and the fourth flow channel 25 both extend to the cavity wall of the first valve inner cavity, so that the third flow channel 24 communicates with the cavity two 18 and the fourth flow channel 25 communicates with the cavity one 17. The first jet device 26 is arranged in the second flow channel 23, the second jet device 27 is arranged in the fourth flow channel 25, and the jet device check valve 28 is arranged at the inlet of the second jet device 27. The first salt suction port 11 is arranged on the support pipe 3 corresponding to the position of the first jet device 26, and the second salt suction port 12 is arranged corresponding to the position of the second jet device 27, and the salt suction check valve is connected at the second salt suction port 12. The water flowing out of the first flow channel 22 can flow to the inlet of the first jet device 26 at the second flow channel 23, and also can flow to the jet device check valve 28 at the inlet of the second jet device 27 at the fourth flow channel 25.

[0082] When producing water normally, the water production valve body 1 is in working state. As shown in Figure 14 and Figure 15 At this time, one of the sealing gaskets 57 blocks the third flow channel 24 and the fourth flow channel 25, the two first water passing channels 58 are opposite to the water inlet communication port 19 and communicate with the cavity one 17, the two second water passing channels 59 are opposite to the water outlet communication port 20 and communicate with the cavity two 18, and the water inlet gap 43 is shielded by the working blind plate 35. At this time, the flow path of the raw water is: the water inlet 6→the first valve outer cavity 13→the water inlet communication port 19→the first water passing channel 58→the first water passing hole 61→the cavity one 17→the tank upper communication port 8→the treatment tank→the tank lower communication port 9→the cavity two 18→the second water passing hole 62→the second water passing channel 59→the water outlet communication port 20→the water outlet 7.

[0083] When the water quality is unqualified, the first driving device 4 drives the first moving valve plate 16 to rotate counterclockwise by 90° (of course, it can also rotate counterclockwise by 270°, or rotate clockwise by 90° or 270°, and the embodiment is described by counterclockwise rotation by 90°), so that the two sealing gaskets 57 respectively block the water outlet communication port 20 and the water inlet communication port 19, and the water production valve body 1 is in a blocking state, so that the cleaning valve body 2 can enter the cleaning process. In this way, the outlet 7 does not need to be provided with a valve to be opened and closed, and only the sealing gasket 57 on the first moving valve plate 16 can achieve it, thereby saving costs. At this time, the third flow channel 24 is in communication with the second water passing channel 59 close to the water outlet 7 and the chamber two 18, and the fourth flow channel 25 is in communication with the second water passing channel 59 close to the water inlet 6 and the chamber one 17. The second driving device 5 drives the second moving valve plate 53 to rotate by a corresponding angle in sequence, so that the cleaning valve body 2 can realize the backwashing, regeneration, water injection and normal washing functions.

[0084] Specifically, the second moving valve plate 53 counterclockwise rotates in the interval of 60°-120° compared to its position when the water production valve body 1 normally produces water, and the cleaning valve body 2 is in a backwashing state, as shown in Figure 16 and Figure 18 When the second moving valve plate 53 counterclockwise rotates in the interval of 60°-90°, the effective water passing area of the blowdown guide-through blind groove 42 corresponds to an angle of 60°, as shown in Figure 17 When the second moving valve plate 53 counterclockwise rotates by 60°, the regeneration cavity 31 is blocked by the fifth blind groove 48 and the sixth blind groove 49, and the water injection cavity 32 is blocked by the fourth blind groove 47; when the second moving valve plate 53 counterclockwise rotates by 120°, the effective water passing area of the blowdown guide-through blind groove 42 corresponds to an angle of 30°, as shown in Figure 19 At this time, the regeneration cavity 31 is blocked by the regeneration guide-through blind groove 41, and the water injection cavity 32 is blocked by the sixth blind groove 49. When the cleaning valve body 2 is in a backwashing state, the flow path of raw water is: water inlet 6→first valve outer cavity 13→valve body communication port 21→second valve outer cavity 14→water inlet gap 43→backwashing through hole 36→backwashing cavity 30→third flow channel 24→second water passing channel 59 close to the water outlet 7→chamber two 18→tank lower communication port 9→treatment tank→tank upper communication port 8→chamber one 17→second water passing channel 59 close to the water inlet 6→fourth flow channel 25→normal washing cavity 33→normal washing through hole 39→blowdown guide-through blind groove 42→central blowdown cavity 34→blowdown port 10.

[0085] When the second moving valve plate 53 counterclockwise rotates by 180° compared to its position when the water production valve body 1 normally produces water, the cleaning valve body 2 is in a regeneration state, as shown in Figure 20 , Figure 21 and Figure 22As shown in the figure, at this time, the regeneration guide blind groove 41 blocks the water injection cavity 32, and the regeneration guide blind groove 41, together with the sixth blind groove 49 and the fifth blind groove 48, blocks the positive washing cavity 33. The water inlet gap 43 is in communication with the regeneration cavity 31. The effective area of the blow-off guide blind groove 42 corresponds to an angle of 30°. The jet-check valve 28 and the salt suction check valve are both open. Raw water enters the first valve outer cavity 13 from the water inlet 6, and enters the second valve outer cavity 14 from the valve body communication port 21. The raw water flows into the first flow channel 22 from the water inlet gap 43, through the regeneration through hole 37 and the regeneration cavity 31 in sequence, and flows to the first jet 26 and the second jet 27. The first jet 26 and the second jet 27 suck salt water from the first salt suction port 11 and the second salt suction port 12, respectively. The salt water sucked by the first jet 26 enters the water injection cavity 32, and overflows into the positive washing cavity 33 through the regeneration guide blind groove 41, and finally flows into the fourth flow channel 25. The salt water sucked by the second jet 27 directly enters the fourth flow channel 25. The salt water from the two places converges and enters the chamber one 17 through the second water passage 59 close to the water inlet 6, and enters the treatment tank through the upper water inlet of the treatment tank along the upper communication port 8 of the tank body. After that, the salt water flows out from the lower water outlet of the treatment tank, enters the chamber two 18 along the lower communication port 9 of the tank body, and then enters the third flow channel 24 through the second water passage 59 close to the water outlet 7. Finally, the salt water enters the central blow-off cavity 34 through the backwashing cavity 30, the backwashing through hole 36 and the blow-off guide blind groove 42, and is discharged from the blow-off port 10.

[0086] When the second valve disc 53 is counterclockwise rotated by 240° compared with its position when the raw water valve body 1 normally produces water, the cleaning valve body 2 is in the state of injecting water and positive washing, as shown in the figures Figure 23 and Figure 24 At this time, the first blind groove 44 and the second blind groove 45 jointly block the regeneration cavity 31. After the second valve disc 53 is counterclockwise rotated by 120° based on the above position, the second valve disc 53 is reset. When the second valve disc 53 is counterclockwise rotated by 270° compared with its position when the raw water valve body 1 normally produces water, the cleaning valve body 2 is in the state of complete positive washing, as shown in the figures Figure 25 and Figure 26 When the second valve disc 53 is counterclockwise rotated by 270°, the effective area of the blow-off guide blind groove 42 corresponds to an angle of 60°. At this time, the third blind groove 46 and the second blind groove 45 jointly block the regeneration cavity 31, and the first blind groove 44 blocks the water injection cavity 32. After the second valve disc 53 is counterclockwise rotated by 90° based on the above position, the second valve disc 53 is reset.

[0087] When water is injected, raw water flows into the second flow channel 23 from the water injection gap 43, through the water injection through hole 38 and the water injection cavity 32, and then flows into the salt tank from the first salt suction port 11 to supplement water. When the water is washed, the flow path of the raw water is: the water inlet 6→ the first valve outer cavity 13→ the valve body communication port 21→ the second valve outer cavity 14→ the water inlet gap 43→ the water washing through hole 39→ the water washing cavity 33→ the second water passage 59 close to the water inlet 6→ the fourth flow channel 25→ the cavity one 17→ the upper communication port 8 of the tank body→ the processing tank body→ the lower communication port 9 of the tank body→ the cavity two 18→ the second water passage 59 close to the water outlet 7→ the third flow channel 24→ the backwashing cavity 30→ the backwashing through hole 36→ the sewage guide through blind groove 42→ the center sewage cavity 34→ the sewage port 10.

[0088] Embodiment 2 of the multi-valve body softening water equipment provided by the present application:

[0089] The difference between the present embodiment and the above-mentioned embodiment 1 is only that the structures of the cleaning valve body 201, the second fixed valve plate 223 and the second movable valve plate 222 in the present embodiment are different from those in embodiment 1.

[0090] Specifically, as shown in Figure 27 , the second valve inner cavity of the cleaning valve body 201 includes the center sewage cavity 226 arranged coaxially and the working cavity 204, the backwashing cavity 202, the first blind cavity 207, the regeneration cavity 205, the water injection cavity 206, the second blind cavity 208 and the water washing cavity 203 arranged in the circumferential direction of the center sewage cavity 226 in sequence counterclockwise, wherein the corresponding central angle of the backwashing cavity 202 is 120°, the corresponding central angles of the first blind cavity 207, the second blind cavity 208, the regeneration cavity 205 and the water injection cavity 206 are all 30°, the corresponding central angle of the water washing cavity 203 is 60°, and the corresponding central angle of the working cavity 204 is 60°.

[0091] As shown in Figure 29 , the second fixed valve plate 223 is provided with the center hole 225, the working blind plate 210, the backwashing through hole 209, the first water passage 214, the regeneration through hole 212, the water injection through hole 213, the second water passage 215 and the water washing through hole 211 corresponding to the center sewage cavity, the working cavity 204, the backwashing cavity 202, the first blind cavity 207, the regeneration cavity 205, the water injection cavity 206, the second blind cavity 208 and the water washing cavity 203 one by one, and the working blind plate 210 blocks the working cavity 204.

[0092] As shown in Figure 28As shown, the second dynamic valve plate 222 is provided with a coaxial arrangement of a central blowdown blind groove 216 and a water inlet gap 219, a blowdown guide blind groove 218, a regeneration guide blind groove 217, a first blind groove 220, a second blind groove 221 and a third blind groove 224 arranged along the circumference of the central blowdown blind groove 216. Among them, the blowdown guide blind groove 218 is in communication with the central blowdown blind groove 216, the regeneration guide blind groove 217 is adjacent to the water inlet gap 219, the first blind groove 220 and the second blind groove 221 are arranged between the regeneration guide blind groove 217 and the blowdown guide blind groove 218, and the third blind groove 224 is arranged between the water inlet gap 219 and the blowdown guide blind groove 218. The corresponding central angle of the water inlet gap 219 is 60°, the corresponding central angle of the blowdown guide blind groove 218 and the regeneration guide blind groove 217 is 90°, the corresponding central angle of the first blind groove 220 and the second blind groove 221 is 30°, and the corresponding central angle of the third blind groove 224 is 60°.

[0093] In addition, in the embodiment, as shown in Figure 30 , the water production valve body is in a working state, and the flow path of raw water in this state is the same as that in Embodiment 1, which will not be described in detail here.

[0094] Compared with the position of the second dynamic valve plate 222 when the water production valve body is normally producing water, the cleaning valve body 201 is in a backwashing state when the second dynamic valve plate 222 is counterclockwise rotated by 60°-120°, as shown in Figure 31 and Figure 32 . Compared with the position of the second dynamic valve plate 222 when the water production valve body is normally producing water, the cleaning valve body 201 is in a regeneration state when the second dynamic valve plate 222 is counterclockwise rotated by 180°, as shown in Figure 33 and Figure 34 . Compared with the position of the second dynamic valve plate 222 when the water production valve body is normally producing water, the cleaning valve body 201 is in a water injection state when the second dynamic valve plate 222 is counterclockwise rotated by 240°, as shown in Figure 35 and Figure 36 . Compared with the position of the second dynamic valve plate 222 when the water production valve body is normally producing water, the cleaning valve body 201 is in a forward washing state when the second dynamic valve plate 222 is counterclockwise rotated by 270°, as shown in Figure 37 and Figure 38 .

[0095] When the cleaning valve body 201 is in a backwashing state, a regeneration state, and a water injection state, the flow path of raw water is the same as that in Embodiment 1, which will not be described in detail here. Different from Embodiment 1, in the embodiment, when the cleaning valve body 201 is in a regeneration state, the effective water area corresponding to the circular central angle of the regeneration cavity 205 is 30°, which is reduced by half compared with Embodiment 1; the cleaning valve body 201 does not forward wash when in a water injection state; and when the cleaning valve body 201 is in a forward washing state, the effective water area corresponding to the circular central angle of the forward washing cavity 203 is 30°.

[0096] Of course, in other embodiments, the central angle corresponding to the water injection cavity 206 and the water injection through hole 213 can also be 60°, as long as it is within the range of 30°-60°. When the central angle corresponding to the water injection cavity 206 is 60°, the second blind cavity 208 is no longer provided in the second valve inner cavity, and correspondingly, the second through water hole is not provided on the second fixed valve plate 223.

[0097] In addition, in other embodiments, the central angle corresponding to the backwashing cavity 202 and the backwashing through hole 209 can also be 90°, as long as it is within the range of 90°-120°. Only appropriate adjustments need to be made according to actual conditions.

[0098] Embodiment 3 of the multi-valve body softening water equipment provided by the present application:

[0099] The main difference between this embodiment and embodiment 1 is that in embodiment 1, the first fixed valve plate and the second fixed valve plate are provided to play a corresponding lubricating effect. In this embodiment, the first fixed valve plate and the second fixed valve plate are not provided, and at this time, the working cavity on the cleaning valve body needs to be plugged during processing, and a lubricant is applied on the rotating contact surface of the first movable valve plate and the second movable valve plate to reduce wear.

[0100] Embodiment 4 of the multi-valve body softening water equipment provided by the present application:

[0101] The main difference between this embodiment and embodiment 1 is that in embodiment 1, the axial end surface of the first movable valve plate facing away from the cross-shaped partition plate is flush with the end surface at the cavity opening of the first valve inner cavity. In this embodiment, the axial end surface of the first movable valve plate facing away from the cross-shaped partition plate is lower than the end surface at the cavity opening of the first valve inner cavity, but the area of the sealing gasket can ensure that the water inlet communication port, the water outlet communication port, the third flow channel and the fourth flow channel are plugged.

[0102] The above is only a preferred embodiment of the present application and is not intended to limit the present application. Any modification, equivalent replacement, improvement, etc. made within the spirit and principles of the present application shall be included in the protection scope of the present application.

Claims

1. A multi-valve softening water plant, characterized by, The application relates to a water production valve body, a cleaning valve body and a supporting pipe; the water production valve body is provided with a water inlet, a water outlet, an upper tank connecting port and a lower tank connecting port, the cleaning valve body is provided with a blowdown port, and the supporting pipe is provided with a first salt suction port and a second salt suction port; the supporting pipe is connected with the water production valve body and the cleaning valve body, and the supporting pipe is supported on the pipeline corresponding to the lower tank connecting port through a plurality of supporting ribs; The water production valve body is provided with a first valve inner cavity and a first valve outer cavity which are communicated with each other, and the first valve outer cavity is communicated with the water outlet; the first valve inner cavity is provided with a chamber I and a chamber II which are separated from each other, the chamber I is communicated with the upper tank connecting port, and the chamber II is communicated with the lower tank connecting port and the water outlet; a first valve disc is rotationally and sealingly arranged in the first valve inner cavity; The cleaning valve body is provided with a second valve inner cavity and a second valve outer cavity which is communicated with the first valve outer cavity, the second valve inner cavity is provided with a central blowdown cavity and working cavities, backwashing cavities, regeneration cavities, water injection cavities and forward washing cavities which are coaxially arranged along the circumferential direction of the central blowdown cavity, the upper part of the working cavities is blocked, and the central blowdown cavity is communicated with the blowdown port; The supporting pipe is provided with a third flow channel and first, second, fourth flow channels which are separated from the third flow channel, the first flow channel is communicated with the regeneration cavities, the second flow channel is communicated with the water injection cavities, the third flow channel is communicated with the backwashing cavities, and the fourth flow channel is communicated with the forward washing cavities; the third flow channel and the fourth flow channel both extend to the cavity wall of the first valve inner cavity, so that the third flow channel is communicated with the chamber II and the fourth flow channel is communicated with the chamber I; a first jet device connected with the first salt suction port is arranged in the second flow channel, and a second jet device connected with the second salt suction port is arranged in the fourth flow channel; check valves are arranged at the inlet of the second jet device and the second salt suction port; The second valve disc is rotationally and sealingly arranged in the upper part of the second valve inner cavity, the second valve disc is provided with a central blowdown blind groove and water inlet notches, blowdown guide blind grooves and regeneration guide blind grooves which are coaxially arranged along the circumferential direction of the central blowdown blind groove, the blowdown guide blind grooves are communicated with the central blowdown blind groove, and the regeneration guide blind grooves are adjacent to the water inlet notches; The regeneration guide blind groove is used for connecting the water injection cavities and the forward washing cavities when the cleaning valve body is in a regeneration state; The first valve disc is a columnar integrated structure, two sealing grooves are arranged in the circumferential direction of the first valve disc, one sealing pad is clamped in each sealing groove, and the two sealing grooves are distributed on the diametrically opposite sides of the first valve disc; a cross-shaped partition plate is arranged between the two sealing grooves on the first valve disc, the cross-shaped partition plate extends to the end face of one side of the first valve disc in the axial direction of the first valve disc, so that the space between the two sealing grooves is divided into a first water passing channel and a second water passing channel which are separated from each other in the transverse direction of the water production valve body, the first water passing channel is provided with two channels which are separated from each other in the longitudinal direction of the water production valve body, the second water passing channel is provided with two channels which are separated from each other in the longitudinal direction of the water production valve body, the first water passing channel and the second water passing channel penetrate through the outer circumference of the first valve disc; the cavity wall of the first valve inner cavity is provided with a water outlet connecting port communicated with the water outlet and a water inlet connecting port communicated with the water inlet at positions corresponding to the water outlet and the water inlet. The first valve disc can connect and block the water flow path between the first valve inner cavity and the first valve outer cavity, and can correspondingly block and connect the water flow path between the third flow channel and the fourth flow channel and the chamber one and the chamber two respectively, so that the water production valve body is in the water production state and the blocking state respectively.

2. The multiple valve body demineralized water plant according to claim 1, characterized in that, In the working state of the water production valve body, one of the first water passage and the second water passage is connected with the water inlet communication port, and the other is connected with the water outlet communication port, and one of the sealing pads blocks the third flow channel and the fourth flow channel. In the blocking state of the water production valve body, the two first water passages or the two second water passages are correspondingly connected with the third flow channel and the fourth flow channel respectively, and the two sealing pads are correspondingly blocked with the water inlet communication port and the water outlet communication port respectively.

3. The multiple valve body demineralized water plant of claim 2 wherein, The axial end surface of the first valve disc away from the cross-shaped partition plate is flush with the end surface at the chamber opening of the first valve inner cavity.

4. The multiple valve body demineralized water plant according to claim 2 or 3, characterized in that, The chamber one and the chamber two are provided with a one-way partition plate, and the first fixed valve disc is fixed on the one-way partition plate, wherein the first fixed valve disc is an integral structure, including a ring beam and a cross-shaped partition beam arranged in the center of the ring beam, the cross-shaped partition beam is fixed on the one-way partition plate in a sleeved manner, and the space in the ring beam is divided into two first water passages connected with the chamber one and two second water passages connected with the chamber two; the cross-shaped partition beam is in frictional contact with the cross-shaped partition plate.

5. The multiple valve body demineralized water plant of claim 1 wherein, The central angle corresponding to the water inlet gap is 60°, the central angle corresponding to the pollution discharge guide blind groove is 60° or 90°, the central angle corresponding to the regeneration guide blind groove ranges from 60° to 90°, the central angle corresponding to the backwashing cavity ranges from 90° to 120°, the central angle corresponding to the working cavity is 60°, the central angle corresponding to the water injection cavity ranges from 30° to 60°, the central angle corresponding to the regeneration cavity ranges from 30° to 60°, and the central angle corresponding to the forward washing cavity ranges from 60° to 90°.

6. The multiple valve body demineralized water plant of claim 5 wherein, The central angles corresponding to the pollution discharge guide blind groove, the regeneration guide blind groove and the regeneration cavity are all 60°, the central angle corresponding to the forward washing cavity is 90°, and the central angle corresponding to the water injection cavity is 30°; the second valve disc is further provided with a first blind groove, a second blind groove and a third blind groove located between the water inlet gap and the pollution discharge guide blind groove and corresponding to the central angles of 30°, and a fourth blind groove, a fifth blind groove and a sixth blind groove located between the regeneration guide blind groove and the pollution discharge guide blind groove and corresponding to the central angles of 30°.

7. The multiple valve body demineralized water plant of claim 5 wherein, The central angles corresponding to the pollution discharge guide blind groove and the regeneration guide blind groove are both 90°, the central angles corresponding to the regeneration cavity and the water injection cavity are both 30°, and the central angle corresponding to the forward washing cavity is 60°; the second valve inner cavity further includes a first blind cavity arranged between the backwashing cavity and the regeneration cavity, and a second blind cavity arranged between the water injection cavity and the forward washing cavity, and the central angles corresponding to the first blind cavity and the second blind cavity are both 30°; the second valve disc is further provided with a first blind groove located between the water inlet gap and the pollution discharge guide blind groove, a second blind groove and a third blind groove located between the regeneration guide blind groove and the pollution discharge guide blind groove, and the central angle corresponding to the first blind groove is 60°, and the central angles corresponding to the second blind groove and the third blind groove are both 30°.

8. The multiple valve body demineralized water plant according to any one of claims 5-7, characterized in that, The upper portion of the second valve cavity is fixed with a second fixed valve plate which is in sealing cooperation with the second movable valve plate, and the second fixed valve plate is provided with a working blind plate, a backwashing through hole, a regeneration through hole, a water injection through hole and a forward washing through hole which are in one-to-one correspondence with the working cavity, the backwashing cavity, the regeneration cavity, the water injection cavity and the forward washing cavity respectively, and the working blind plate blocks the working cavity.

9. The multiple valve block demineralized water plant according to any one of claims 1-3, characterized in that, The water production valve body, the cleaning valve body and the support pipe are formed by injection molding.

10. The multiple valve block demineralized water plant according to any one of claims 1-3, characterized in that, The water inlet and the water outlet are respectively arranged on the two lateral sides of the water production valve body, and the axes of the water inlet and the water outlet coincide; the upper tank communication opening and the lower tank communication opening are respectively arranged on the two longitudinal sides of the water production valve body, the axes of the upper tank communication opening and the lower tank communication opening coincide, and are perpendicular to the axes of the water inlet and the water outlet.

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