Water treatment device

Abstract

The utility model belongs to the technical field of water treatment equipment, and discloses a water treatment device which comprises a water treatment assembly, a communicating valve and at least one bypass pipe, the water treatment assembly comprises at least two treatment tanks, the top of each treatment tank is provided with a protruding part, and each treatment tank is provided with a water inlet and a water outlet which are communicated with an inner containing cavity. The communication valves are used for communication among an external water supply end, an external water use end and the water treatment assembly, a bypass pipe is arranged between every two adjacent treatment tanks, and the two ends of each bypass pipe are connected with a water outlet of one treatment tank and a water inlet of the other treatment tank respectively in the flowing direction of raw water, so that at least two treatment tanks are communicated in series; wherein the section size of the protruding part is smaller than that of the treatment tank, a containing space is formed beside the protruding part, and at least part of the bypass pipe and / or at least part of the communication valve are / is located in the containing space. The water treatment device disclosed by the utility model is favorable for realizing internal structure layout optimization and whole machine miniaturization when a plurality of treatment tanks are connected in series.

Description

TECHNICAL FIELD

[0001] The utility model relates to water treatment equipment technical field especially relates to water treatment device. BACKGROUND

[0002] Water softener is a kind of water treatment equipment that removes calcium ions and magnesium ions in water to reduce water hardness by ion exchange. Resin is often used as filter core in water softener, and the soft water efficiency of communication valve is related to the volume of resin tank and the volume of resin filter core. In order to improve softening capacity, multiple resin tanks are often used in series to form a longer softening flow path in water softener. In order to realize the series connection of multiple resin tanks, the softening valve of water softener has multiple water paths inside to respectively connect multiple resin tanks, and water flows between resin tank and softening valve to form a series softening flow path. Connecting multiple resin tanks through one softening valve is easy to form unreasonable space arrangement, and the internal water path structure of softening valve is complex and occupies a large internal space of water softener, so that the whole machine is large in volume and not suitable for narrow use environment. SUMMARY

[0003] The utility model aims at providing water treatment device, which can solve the problems of unreasonable space layout, complex softening valve structure and large internal space occupation of water softener caused by series connection of multiple resin tanks by softening valve, and large volume of whole machine and unsuitable for narrow use environment.

[0004] To achieve this purpose, the utility model adopts the following technical scheme:

[0005] Water treatment device is provided, which comprises water treatment assembly, communication valve and at least one bypass pipe, the water treatment assembly comprises at least two treatment tanks, the top of the treatment tank has protruding part, the treatment tank is provided with water inlet and water outlet that communicate with internal accommodating cavity, the communication valve is used for the communication between external water supply end, external water use end and the water treatment assembly, one bypass pipe is arranged between adjacent two treatment tanks, along the direction of raw water flow, the two ends of the bypass pipe are connected with the water outlet of one of the treatment tanks and the water inlet of another treatment tank respectively to form series communication of at least two treatment tanks.

[0006] Wherein, the cross-sectional dimension of the protruding part is less than the cross-sectional dimension of the treatment tank, the side of the protruding part forms accommodating space, at least part of the bypass pipe and / or at least part of the communication valve are located in the accommodating space.

[0007] In one embodiment, part of the top of the treatment tank extends outward along the axial direction to form the protruding part, or part of the top of the treatment tank is recessed inward along the axial direction to form the protruding part with the remaining part of the top.

[0008] In one of the embodiments, the treatment tank has an inlet water passage and an outlet water passage along the flow direction of raw water, the outlet water passage is located in the center of the accommodating cavity, the inlet water passage is located around the periphery of the outlet water passage, the inlet port is communicated with the inlet water passage, and the outlet port is communicated with the outlet water passage.

[0009] The protruding part is eccentrically arranged, the projection of the protruding part along the axial direction of the treatment tank covers the inlet water passage and the outlet water passage, and the inlet port and / or the outlet port is arranged on the outer side wall of the protruding part.

[0010] In one of the embodiments, the inlet port and the outlet port are both arranged on the outer side wall of the protruding part, and in the two adjacent treatment tanks, the outlet port of the upstream treatment tank is oriented in the same direction as the inlet port of the downstream treatment tank, or the outlet port of the upstream treatment tank is oriented at an angle with the inlet port of the downstream treatment tank.

[0011] In one of the embodiments, the cross section of the protruding part is in the shape of a sector, the protruding part has two radially outer side walls arranged at an angle, and an arc outer side wall connected between the two radially outer side walls, and the inlet port and the outlet port are both arranged on the radially outer side walls.

[0012] In one of the embodiments, the two adjacent protruding parts are located on the same side of the axial center line of the two treatment tanks, or the two adjacent protruding parts are located on the two sides of the axial center line respectively and arranged oppositely.

[0013] In one of the embodiments, the communication valve includes a first extension pipe with a first communication port and a second extension pipe with a second communication port, the first extension pipe and the second extension pipe are used to connect the water treatment assembly, the communication valve is arranged above the treatment tank, so that the first extension pipe and the second extension pipe extend into the accommodating space, and the bypass pipe is located beside the protruding part to be located in the accommodating space.

[0014] In one of the embodiments, the water treatment assembly includes two series-connected treatment tanks and one bypass pipe, along the flow direction of raw water, the two treatment tanks are sequentially formed into a first treatment tank and a second treatment tank, the first treatment tank is provided with a communication inlet port for communicating with the first communication port, the second treatment tank is provided with a communication outlet port for communicating with the second communication port, and the communication inlet port and the communication outlet port are oriented towards the accommodating space.

[0015] In one of the embodiments, the first and second treatment tanks each have the protrusion, the communication water inlet is arranged at the end of the first treatment tank or the corresponding protrusion, and the first extension pipe is a straight pipe or an L-shaped pipe to adapt to the direction of the communication water inlet;

[0016] The communication water outlet is arranged at the end of the second treatment tank or the corresponding protrusion, and the second extension pipe is a straight pipe or an L-shaped pipe to adapt to the direction of the communication water outlet.

[0017] In one of the embodiments, the communication valve has a flow inlet, a flow outlet and a blowdown outlet, the flow inlet is connected to an external water supply end, the flow outlet is connected to an external water use end, the blowdown outlet is used for discharging waste water, the flow inlet is connected to the first communication port, and the second communication port can selectively connect the flow outlet or the blowdown outlet to form a working mode or a forward flushing mode.

[0018] In one of the embodiments, the communication valve has a flow inlet, a flow outlet and a blowdown outlet, the flow inlet is connected to an external water supply end, the flow outlet is connected to an external water use end, the blowdown outlet is used for discharging waste water, the flow inlet can selectively connect the second communication port, and when the flow inlet is connected to the second communication port, the first communication port selectively connects the blowdown outlet to form a reverse flushing mode.

[0019] In one of the embodiments, the communication valve has a flow inlet, a blowdown outlet and a salt water supplement inlet, resin filter cartridges are arranged in the treatment tanks, the salt water supplement inlet is used for injecting salt water into the communication valve, the second communication port can selectively simultaneously connect the flow inlet and the salt water supplement inlet, and when the second communication port simultaneously connects the flow inlet and the salt water supplement inlet, the first communication port selectively connects the blowdown outlet to form a regeneration mode, raw water and salt water are mixed and sequentially flow through the second treatment tank and the first treatment tank to regenerate the resin filter cartridges.

[0020] In one of the embodiments, the water treatment device further comprises a salt supplement tank, the salt supplement tank has a salt water cavity for accommodating salt water, the salt water cavity is connected to the salt water supplement inlet, the salt supplement tank is connected to the communication valve, and the salt water supplement inlet can selectively connect the flow inlet to form a water supplement mode.

[0021] The beneficial effects of the utility model are as follows:

[0022] The water treatment device provided by the utility model, which comprises a water treatment assembly, a communication valve and at least one bypass pipe, the water treatment assembly comprises at least two treatment tanks. One end of the treatment tank is provided with a protruding part, the treatment tank is provided with a water inlet and a water outlet which communicate with the internal accommodating cavity, the communication valve is used for the communication among the external water supply end, the external water use end and the water treatment assembly, one bypass pipe is arranged between the adjacent two treatment tanks, along the raw water flow direction, the two ends of the bypass pipe are connected with the water outlet of one of the treatment tanks and the water inlet of the other treatment tank, so as to form the series communication of the at least two treatment tanks. Through the arrangement of the bypass pipe, the water flows through the plurality of treatment tanks in sequence to form the series water path, and does not need to flow through the communication valve, so that the internal water path structure of the communication valve is simplified, and the space volume of the communication valve is reduced. Moreover, the cross-sectional dimension of the protruding part is smaller than that of the treatment tank, the side of the protruding part forms an accommodating space, and at least part of the bypass pipe and / or at least part of the communication valve are located in the accommodating space. The water treatment device of the utility model embodiment ingeniously utilizes the accommodating space formed by the smaller size of the protruding part compared with the treatment tank to accommodate part of the structure of the bypass pipe and the communication valve, reduces the additional occupation of the internal space volume of the water treatment device by the bypass pipe and the communication valve, the water treatment assembly, the communication valve and the bypass pipe form a relatively reasonable space layout, so that the internal structure of the water treatment device is relatively compact, and the space requirement of the narrow use environment is met. BRIEF DESCRIPTION OF DRAWINGS

[0023] Figure 1 is a structure schematic view of the water treatment device provided by the utility model embodiment;

[0024] Figure 2 is a structure disassembly schematic view of the water treatment device provided by the utility model embodiment;

[0025] Figure 3 is a structure schematic view of the second treatment tank provided by the utility model embodiment one;

[0026] Figure 4 is a structure sectional view of the second treatment tank provided by the utility model embodiment one;

[0027] Figure 5 is a connection schematic view of the bypass pipe and the water treatment assembly provided by the utility model embodiment one;

[0028] Figure 6 is a connection schematic view of the bypass pipe and the water treatment assembly provided by the utility model embodiment two.

[0029] In the drawing:

[0030] 1, water treatment assembly; 11, protrusion; 111, partition; 112, first channel; 113, second channel; 114, radial outer wall; 115, arc-shaped outer wall; 12, water inlet; 13, water outlet; 14, accommodation space; 15, first treatment tank; 151, communication water inlet; 16, second treatment tank; 161, communication water outlet; 2, communication valve; 21, first extension pipe; 211, first communication port; 22, second extension pipe; 221, second communication port; 23, flow inlet; 24, flow outlet; 25, blowdown port; 26, salt suction and water replenishment port; 3, bypass pipe; 31, entry port; 32, entry port. DETAILED DESCRIPTION

[0031] The technical solutions of the present application will be described clearly and completely below in conjunction with the drawings. Obviously, the described embodiments are only some of the embodiments of the present application, rather than all the embodiments. Based on the embodiments in the present application, all other embodiments obtained by those skilled in the art without creative work fall within the scope of protection of the present application.

[0032] In the description of the present application, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer" and the like indicate the orientation or positional relationship shown in the drawings, and are only for the convenience of describing the present application and simplifying the description, and do not indicate or imply that the devices or elements referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore cannot be understood as a limitation on the present application. In addition, the terms "first", "second", are only for the purpose of description, and cannot be understood as indicating or implying relative importance. Among them, the terms "first position" and "second position" are two different positions, and moreover, the first feature is "above", "above" and "above" of the second feature, which includes the first feature above and obliquely above the second feature, or only indicates that the horizontal height of the first feature is higher than that of the second feature. The first feature is "below", "below" and "below" of the second feature, which includes the first feature below and obliquely below the second feature, or only indicates that the horizontal height of the first feature is less than that of the second feature.

[0033] In the description of the present application, it should be noted that unless otherwise explicitly specified and limited, the terms "mounting", "connection", "connection" should be understood broadly, for example, it can be fixedly connected, or it can be detachably connected, or integrally connected; it can be mechanically connected, or it can be electrically connected; it can be directly connected, or it can be indirectly connected through an intermediate medium; it can be the communication inside two elements. For those skilled in the art, the specific meaning of the above terms in the present application can be understood according to the specific circumstances.

[0034] The embodiments of the present application are described below in detail, and examples of the embodiments are shown in the drawings, wherein the same or similar notations represent the same or similar elements or elements having the same or similar functions throughout. The embodiments described below by reference to the drawings are exemplary only, and are used to explain the present application, and cannot be understood as a limitation of the present application.

[0035] As shown in Figure 1 and Figure 2 The present embodiment first provides a water treatment device, which comprises a water treatment assembly 1, a communication valve 2 and at least one bypass pipe 3. The water treatment assembly 1 comprises at least two treatment tanks, which can be soft water tanks with resin filter cartridges or purification tanks with RO membrane reverse osmosis filter cartridges, and the present embodiment does not make specific limitations.

[0036] One end of the treatment tank is provided with a protruding portion 11, and the treatment tank is provided with a water inlet 12 and a water outlet 13 which communicate with the internal accommodating cavity. The communication valve 2 is used for communication between the external water supply end, the external water use end and the water treatment assembly 1. One bypass pipe 3 is arranged between the adjacent two treatment tanks. Along the flow direction of raw water, the two ends of the bypass pipe 3 are connected to the water outlet 13 of one of the treatment tanks and the water inlet 12 of the other treatment tank, respectively, to form a series communication of the at least two treatment tanks. Through the arrangement of the bypass pipe 3, the water flows through the plurality of treatment tanks in sequence to form a series water path, without flowing through the communication valve 2, which is beneficial to simplify the internal water path structure of the communication valve 2 and reduce the space volume of the communication valve 2. Moreover, the cross-sectional size of the protruding portion 11 is smaller than that of the treatment tank, and the side of the protruding portion 11 forms an accommodating space 14, and at least part of the bypass pipe 3 and / or at least part of the communication valve 2 are located in the accommodating space 14. The water treatment device of the present embodiment ingeniously utilizes the accommodating space 14 formed by the smaller size of the protruding portion 11 compared with the treatment tank to accommodate part of the structure of the bypass pipe 3 and the communication valve 2, reduces the additional internal space volume of the water treatment device occupied by the bypass pipe 3 and the communication valve 2, and forms a relatively reasonable space layout of the water treatment assembly 1, the communication valve 2 and the bypass pipe 3, so that the internal structure of the water treatment device is relatively compact, and the space requirement of the narrow use environment is met.

[0037] The protruding portion 11 can be formed by extending part of the top end of the treatment tank outward along the axial direction of the treatment tank, or the top end of the treatment tank is recessed inward along the axial direction of the treatment tank to form the protruding portion 11 from the remaining part of the top end. The present embodiment does not make specific limitations.

[0038] Along the flow direction of the raw water, the treatment tank has a water inlet channel and a water outlet channel. The raw water enters the treatment tank through the water inlet channel, and flows out through the water outlet channel after being treated by the filter element. The water outlet channel is located at the center of the accommodation cavity, and the water inlet channel is arranged around the periphery of the water outlet channel. The water inlet 12 is connected to the water inlet channel, and the water outlet 13 is connected to the water outlet channel. The protruding portion 11 is arranged eccentrically along the axial direction of the treatment tank. The projection of the protruding portion 11 along the axial direction of the treatment tank covers the water inlet channel and the water outlet channel. The water inlet 12 and / or the water outlet 13 are arranged on the outer side wall of the protruding portion 11. The protruding portion 11 arranged eccentrically along the axial direction of the treatment tank can better guide the water flow in and out. When the water outlet 13 is arranged on the outer side wall of the protruding portion 11, it can directly connect to the water outlet channel at the center, and the water outlet flow will not interfere with the water inlet flow. Moreover, when the water inlet 12 and the water outlet 13 arranged on the outer side wall of the protruding portion 11 are connected to the bypass pipe 3 through the joint, the joint and the bypass pipe 3 are located in the accommodation space 14 beside the protruding portion 11, which does not increase the size of the treatment tank in the height direction, and is beneficial to the compactness and miniaturization of the water treatment device.

[0039] It should be noted that the water outlet channel is located at the center of the accommodation cavity. Here, the center does not refer to the center of the treatment tank, but to the central region extending along the axial direction in the accommodation cavity.

[0040] For example, in an embodiment, the water inlet 12 and the water outlet 13 are both arranged on the outer side wall of the protruding portion 11. In adjacent two treatment tanks, along the flow direction of the raw water, the water outlet 13 of the treatment tank located upstream is oriented in the same direction as the water inlet 12 of the treatment tank located downstream. In this way, the bypass pipe 3 is in the shape of U to connect the water inlet 12 and the water outlet 13 with the same opening direction. Along the flow direction of the raw water, the U-shaped bypass pipe 3 has an inlet port 31 and an outlet port 32. The inlet port 31 is used to connect the water outlet 13 of the protruding portion 11 of the upstream treatment tank, and the outlet port 32 is used to connect the water inlet 12 of the protruding portion 11 of the downstream treatment tank.

[0041] In other embodiments, the water outlet 13 of the treatment tank located upstream and the water inlet 12 of the treatment tank located downstream can also be arranged at an angle. The extension direction of the bypass pipe 3 can be changed to adapt to the orientation of the water outlet 13 and the water inlet 12. As shown in the figure, the water outlet 13 of the treatment tank located upstream and the water inlet 12 of the treatment tank located downstream are arranged at an angle of 90°. At this time, the bypass pipe 3 is in the shape of L. Figure 6

[0042] Of course, in order to adapt to the orientation of the water outlet 13 and the water inlet 12, in other embodiments, the bypass pipe 3 can also be in the shape of Z, or be a straight pipe, etc. The present embodiment does not make specific limitations.

[0043] ​To realize the connection between the communicating valve 2 and the water treatment assembly 1 to form the circulating water path, the communicating valve 2 comprises a first extension pipe 21 with a first communicating port 211 and a second extension pipe 22 with a second communicating port 221, both of which are used to connect the water treatment assembly 1, and the communicating valve 2 is arranged above the treatment tank so that the first extension pipe 21 and the second extension pipe 22 extend to the accommodation space 14, and the bypass pipe 3 is located beside the protruding part 11 to be located in the accommodation space 14. In this way, the accommodation space 14 has better accommodation, and can accommodate part of the structure of the communicating valve 2 and part of the structure of the bypass pipe 3 at the same time.

[0044] Figure 2 The structure of the water treatment device with two treatment tanks and one bypass pipe 3 is shown in the middle. When the number of treatment tanks of the water treatment device is greater than two, the number of bypass pipes 3 increases accordingly. For example, the water treatment device has three treatment tanks, and accordingly, two bypass pipes 3 are arranged, that is, one bypass pipe 3 is arranged between every two adjacent treatment tanks. In other embodiments, the number of treatment tanks and bypass pipes 3 of the water treatment device can be increased or decreased according to the demand for purification capacity, and the present embodiment does not limit it.

[0045] Next, the layout mode of the water treatment assembly 1, the communicating valve 2 and the bypass pipe 3 will be described with specific embodiments.

[0046] Embodiment one

[0047] As shown in Figures 3 to 5 In this embodiment, the water treatment assembly 1 comprises two series-connected treatment tanks and one bypass pipe 3. Both of the two treatment tanks are soft water tanks, and along the flow direction of raw water, the two series-connected treatment tanks form a first treatment tank 15 and a second treatment tank 16 in sequence. The first treatment tank 15 is provided with a communicating water inlet 151 for communicating with the first communicating port 211 of the communicating valve 2, and the second treatment tank 16 is provided with a communicating water outlet 161 for communicating with the second communicating port 221 of the communicating valve 2, so as to form a circulating water path. The communicating water inlet 151 and the communicating water outlet 161 are towards the accommodation space 14, which is convenient for arranging the communicating valve 2.

[0048] The first treatment tank 15 and the second treatment tank 16 each have a protruding part 11, which can increase the volume of the accommodation cavity, store more water, and improve the softening capacity of the water treatment device. The communication water inlet 151 is arranged at the end of the first treatment tank 15 or the corresponding protruding part 11, and the first extension pipe 21 is a straight pipe or an L-shaped pipe to adapt to the direction of the communication water inlet 151. The communication water outlet 161 is arranged at the end of the second treatment tank 16 or the corresponding protruding part 11, and the second extension pipe 22 is a straight pipe or an L-shaped pipe to adapt to the direction of the communication water outlet 161. That is, when the communication water inlet 151 is arranged at the end of the first treatment tank 15, the first extension pipe 21 is a straight pipe; when the communication water inlet 151 is arranged at the outer side wall of the corresponding protruding part 11, the first extension pipe 21 is an L-shaped pipe to adapt to the direction of the communication water inlet 151. Similarly, when the communication water outlet 161 is arranged at the end of the second treatment tank 16, the second extension pipe 22 is a straight pipe; when the communication water outlet 161 is arranged at the outer side wall of the corresponding protruding part 11, the second extension pipe 22 is an L-shaped pipe to adapt to the direction of the communication water outlet 161.

[0049] As shown in Figure 4 , the protruding part 11 has a partition 111 to form a first channel 112 and a second channel 113, which are isolated from each other, the first channel 112 is connected to the water inlet channel, and the second channel 113 is connected to the water outlet channel. When the water inlet 12 and the water outlet 13 are arranged at the outer side wall of the protruding part 11, the flow direction of the raw water at the water inlet 12 and the water outlet 13 is horizontal, which is different from the extension direction of the water inlet channel and the water outlet channel of the vertically arranged treatment tank. Therefore, the first channel 112 can guide the flow direction of the water entering the water inlet channel through the water inlet 12, and the second channel 113 can guide the flow direction of the water entering the water outlet 13 through the water outlet channel, thereby improving the flowability of the water.

[0050] The cross section of the protruding part 11 is fan-shaped, the protruding part 11 has two radially outer side walls 114 arranged at an angle, and an arc-shaped outer side wall 115 connected to the two radially outer side walls 114, the water inlet 12 and the water outlet 13 are arranged at the radially outer side wall 114. The radially outer side wall 114 is convenient for the arrangement of the joint, and the arc-shaped outer side wall 115 can increase the volume of the accommodation cavity as much as possible.

[0051] As shown in Figure 5 , the two protruding parts 11 adjacent to each other are located on the same side of the axis connecting line of the two treatment tanks. Further, the arc-shaped outer side walls 115 of the two fan shapes are oppositely arranged to further optimize the space layout.

[0052] Exemplarily, as shown in Figure 2As shown, the connecting inlet 151 is located at the end of the first treatment tank 15, at the edge of the end, and is directly connected to the water inlet channel of the first treatment tank 15, with the water flow direction being the same, resulting in better water flow. The connecting outlet 161 is located on a radially outer side wall 114 of the protrusion 11 of the second treatment tank 16, and faces the receiving space 14. To accommodate the opening directions of the connecting inlet 151 and the connecting outlet 161, the first extension pipe 21 is a straight pipe, and the second extension pipe 22 is an L-shaped bend.

[0053] The outlet 13 is located on one radially outer side wall 114 of the protrusion 11 of the first treatment tank 15, and the inlet 12 is located on the other radially outer side wall 114 of the protrusion 11 of the second treatment tank 16, with the outlet 13 and inlet 12 facing the same direction. Thus, the first extension pipe 21 and the second extension pipe 22 are arranged in the partial accommodating space 14 between the two protrusions 11, and the bypass pipe 3 is arranged in the partial accommodating space 14 formed on the other side of the axis connecting the two protrusions 11, reducing the possibility of interference between the bypass pipe 3 and the first extension pipe 21 and the second extension pipe 22. Furthermore, the bypass pipe 3, arranged on the side, is easy to install, inspect, and replace, and will not affect the first treatment tank 15, the second treatment tank 16, or the connecting valve 2. Quick-connect fittings are used between the bypass pipe 3 and the outlet 13 and inlet 12, further improving the convenience of maintenance and replacement. The structure of the quick-connect fittings can be designed according to existing technology, which is not the focus of this application and will not be described in detail here.

[0054] To minimize the distance between the first treatment tank 15 and the second treatment tank 16, the first extension pipe 21 and the second extension pipe 22 are staggered along the axis connecting the first treatment tank 15 and the second treatment tank 16. In this embodiment, the staggered arrangement of the first extension pipe 21 and the second extension pipe 22 allows the first treatment tank 15 and the second treatment tank 16 to be closer together, which helps to reduce the size of the water treatment device along the axis connecting the first treatment tank 15 and the second treatment tank 16.

[0055] Example 2

[0056] In this embodiment, the water treatment component 1 has two series-connected treatment tanks and a bypass pipe 3, identical to those in Embodiment 1. Both treatment tanks are soft water tanks, and along the direction of raw water flow, the two series-connected treatment tanks sequentially form a first treatment tank 15 and a second treatment tank 16. The remaining identical structures will not be described in detail in this embodiment.

[0057] like Figure 6 As shown, in this embodiment, the first processing tank 15 and the second processing tank 16 have two protrusions 11 located on both sides of the axis connecting line and arranged opposite to each other.

[0058] When the two protrusions 11 are both fan-shaped, the central angles of the two fan shapes are arranged opposite to each other, and the bypass pipe 3 is L-shaped to connect the water inlet 12 and the water outlet 13. The communication water inlet 151 is arranged on the protrusion 11 of the first treatment tank 15, and the communication water outlet 161 is arranged on the protrusion 11 of the second treatment tank 16. The first extension pipe 21 and the second extension pipe 22 are both L-shaped to adapt to the orientations of the communication water inlet 151 and the communication water outlet 161 respectively. In this way, the processing technology of the water treatment device can be simplified. The protrusion 11 of the first treatment tank 15 has two openings, and the protrusion 11 of the second treatment tank 16 also has two openings. The same injection mold can be used for processing, and the same joint structure of the bypass pipe 3 and the communication valve 2 can be used.

[0059] It should be noted that, in Figure 6 , the protrusion 11 of the second treatment tank 16 is located in the second quadrant of one end surface of the second treatment tank 16, and the protrusion 11 of the first treatment tank 15 is located in the fourth quadrant of one end surface of the first treatment tank 15. In other embodiments, the protrusion 11 of the second treatment tank 16 can also be located in the third quadrant of one end surface of the second treatment tank 16, and the protrusion 11 of the first treatment tank 15 can be located in the first quadrant of one end surface of the first treatment tank 15.

[0060] Embodiment three

[0061] The embodiment of the utility model provides a kind of water treatment device, and water treatment device has the two series connection treatment tanks and a bypass pipe 3 in embodiment one or embodiment two.This embodiment does not repeat the same structure.

[0062] In this embodiment, the communication valve 2 also has a flow inlet 23, a flow outlet 24 and a blowdown port 25. The flow inlet 23 is connected to an external water supply end, the flow outlet 24 is connected to an external water use end, and the blowdown port 25 is used to discharge wastewater. The flow inlet 23 is connected to the first communication port 211, and the second communication port 221 can selectively connect the flow outlet 24 or the blowdown port 25 to form a working mode or a forward flushing mode. In the working mode, the flow inlet 23 is connected to the first communication port 211, the second communication port 221 is connected to the flow outlet 24, raw water provided by the external water supply end flows through the communication valve 2 into the water treatment assembly 1, and the softened water formed by sequentially passing through the first treatment tank 15 and the second treatment tank 16 is supplied to the external water use end through the flow outlet 24. In the forward flushing mode, the flow inlet 23 is connected to the first communication port 211, the second communication port 221 is connected to the blowdown port 25, raw water provided by the external water supply end flows through the communication valve 2 into the water treatment assembly 1, and the filter elements in the first treatment tank 15 and the second treatment tank 16 are sequentially flushed, and the formed wastewater is discharged through the blowdown port 25.

[0063] To further improve the flushing effect, the flow inlet 23 can selectively communicate with the second communication port 221, and when the flow inlet 23 communicates with the second communication port 221, the first communication port 211 selectively communicates with the blowdown port 25 to form a reverse flushing mode. In the reverse flushing mode, the raw water provided by the external water supply end flows into the water treatment assembly 1 through the communication valve 2, and since the second communication port 221 communicates with the communication water outlet 161 of the second treatment tank 16, the flow direction of the raw water in the second treatment tank 16 and the first treatment tank 15 is opposite to that in the forward flushing mode, thereby forming a more thorough flushing of the filter element. The raw water sequentially performs reverse flushing on the filter elements in the second treatment tank 16 and the first treatment tank 15, and the waste water formed is discharged through the blowdown port 25.

[0064] The resin filter element in the treatment tank will be saturated after a long time of use, and the communication valve 2 further has a salt suction and water supply port 26. The salt suction and water supply port 26 is used to inject brine into the communication valve 2, the second communication port 221 can selectively simultaneously communicate with the flow inlet 23 and the salt suction and water supply port 26, and when the second communication port 221 simultaneously communicates with the flow inlet 23 and the salt suction and water supply port 26, the first communication port 211 selectively communicates with the blowdown port 25 to form a regeneration mode. In the regeneration mode, the raw water provided by the external water supply end and the brine provided by the salt suction and water supply port 26 are mixed and sequentially flow through the second treatment tank 16 and the first treatment tank 15 to regenerate the resin filter element. The mixed liquid soaks the resin filter element, so that sodium ions reoccupy the exchange position, and the resin filter element restores the softening function.

[0065] To provide brine used in the regeneration mode, the water treatment device further includes a salt supplement tank (not shown in the figure). The salt supplement tank has a brine cavity for containing brine, and in the initial state, the salt supplement tank contains solid salt, which occupies less space than brine. The brine cavity communicates with the salt suction and water supply port 26, the salt supplement tank is connected to the communication valve 2, and the salt suction and water supply port 26 can selectively communicate with the flow inlet 23 to form a water supply mode. The water supply mode is arranged before the regeneration mode. In the water supply mode, the raw water provided by the external water supply end flows through the communication valve 2 into the salt supplement tank to dissolve the solid salt into brine, which is used in the subsequent regeneration mode.

[0066] The above-mentioned structure of the communication valve 2, in which the second communication port 221 selectively communicates with the flow outlet 24 or the blowdown port 25, the flow inlet 23 selectively communicates with the second communication port 221 or the first communication port 211, the first communication port 211 selectively communicates with the blowdown port 25 and the flow outlet 24, and the salt suction and water supply port 26 selectively communicates with the second communication port 221 and the flow inlet 23, can be arranged according to the prior art, which is not the focus of the present application, and will not be described here.

[0067] Obviously, the above embodiments of the present application are merely examples for clearly illustrating the present application, and are not intended to limit the implementation modes of the present application. For those skilled in the art, various obvious changes, re-adjustments and replacements can be made without departing from the protection scope of the present application. Here, it is not necessary and also impossible to enumerate all the implementation modes. Any modification, equivalent replacement and improvement made within the spirit and principle of the present application shall be included in the protection scope of the present application claim.

Claims

1. A water treatment device, characterized by The water treatment assembly (1) comprises at least two treatment tanks, the top of the treatment tank has a protrusion (11), the treatment tank is provided with a water inlet (12) and a water outlet (13) which communicate with the internal accommodating cavity, the communication valve (2) is used for the communication between the external water supply end, the external water use end and the water treatment assembly (1), one bypass pipe (3) is arranged between two adjacent treatment tanks, and the two ends of the bypass pipe (3) are connected with the water outlet (13) of one of the treatment tanks and the water inlet (12) of the other treatment tank in the raw water flow direction to form the series communication of the at least two treatment tanks. The cross-sectional size of the protrusion (11) is smaller than the cross-sectional size of the treatment tank, and the side of the protrusion (11) forms an accommodating space (14), and at least part of the bypass pipe (3) and / or at least part of the communication valve (2) are located in the accommodating space (14).

2. The water treatment device of claim 1, wherein, The part of the top of the treatment tank extends outward along the axial direction to form the protrusion (11), or the part of the top of the treatment tank is recessed inward along the axial direction to form the protrusion (11) with the remaining part of the top.

3. The water treatment device of claim 1, wherein, In the raw water flow direction, the treatment tank has a water inlet channel and a water outlet channel, the water outlet channel is located in the center of the accommodating cavity, the water inlet channel surrounds the circumferential side of the water outlet channel, the water inlet (12) communicates with the water inlet channel, and the water outlet (13) communicates with the water outlet channel; the protrusion (11) is arranged eccentrically, the projection of the protrusion (11) along the axial direction of the treatment tank covers the water inlet channel and the water outlet channel, and the water inlet (12) and / or the water outlet (13) are arranged on the outer side wall of the protrusion (11).

4. The water treatment device of claim 3, wherein, The water inlet (12) and the water outlet (13) are both arranged on the outer side wall of the protrusion (11), in the raw water flow direction, the water outlet (13) of the upstream treatment tank and the water inlet (12) of the downstream treatment tank are arranged in the same direction, or the water outlet (13) of the upstream treatment tank and the water inlet (12) of the downstream treatment tank are arranged at an angle.

5. The water treatment device of claim 3, wherein, The cross section of the protrusion (11) is fan-shaped, the protrusion (11) has two radially outer side walls (114) arranged at an angle and an arc-shaped outer side wall (115) connected between the two radially outer side walls (114), and the water inlet (12) and the water outlet (13) are arranged on the radially outer side wall (114).

6. The water treatment device of claim 1, wherein, The two protrusions (11) are located on the same side of the axis connecting line of the two treatment tanks, or the two protrusions (11) are located on the two sides of the axis connecting line and arranged oppositely.

7. The water treatment device of claim 1, wherein, The communication valve (2) includes a first extension pipe (21) with a first communication port (211) and a second extension pipe (22) with a second communication port (221), the first extension pipe (21) and the second extension pipe (22) are used to connect the water treatment assembly (1), the communication valve (2) is arranged above the treatment tank, so that the first extension pipe (21) and the second extension pipe (22) extend to the accommodation space (14), and the bypass pipe (3) is located beside the protruding part (11) to be located in the accommodation space (14).

8. The water treatment device of claim 7, wherein, The water treatment assembly (1) includes two series-connected treatment tanks and a bypass pipe (3), in the direction of raw water flow, the two treatment tanks are sequentially formed into a first treatment tank (15) and a second treatment tank (16), the first treatment tank (15) is provided with a communication water inlet (151) for communicating the first communication port (211), the second treatment tank (16) is provided with a communication water outlet (161) for communicating the second communication port (221), and the communication water inlet (151) and the communication water outlet (161) are directed to the accommodation space (14).

9. The water treatment device of claim 8, wherein, The first treatment tank (15) and the second treatment tank (16) each have the protruding part (11), the communication water inlet (151) is arranged at the end of the first treatment tank (15) or the corresponding protruding part (11), and the first extension pipe (21) is a straight pipe or an L-shaped pipe to adapt to the direction of the communication water inlet (151); The communication water outlet (161) is arranged at the end of the second treatment tank (16) or the corresponding protruding part (11), and the second extension pipe (22) is a straight pipe or an L-shaped pipe to adapt to the direction of the communication water outlet (161).

10. The water treatment device of claim 8, wherein, The communication valve (2) has an inlet (23), an outlet (24) and a drain (25), the inlet (23) is connected to an external water supply end, the outlet (24) is connected to an external water end, the drain (25) is used to drain waste water, the inlet (23) is connected to the first communication port (211), and the second communication port (221) can selectively communicate with the outlet (24) or the drain (25) to form a working mode or a forward flushing mode.

11. The water treatment device of claim 8, wherein, The communication valve (2) has an inlet (23), an outlet (24) and a drain (25), the inlet (23) is connected to an external water supply end, the outlet (24) is connected to an external water end, the drain (25) is used to drain waste water, the inlet (23) can selectively communicate with the second communication port (221), and when the inlet (23) communicates with the second communication port (221), the first communication port (211) selectively communicates with the drain (25) to form a reverse flushing mode.

12. The water treatment device of claim 8, wherein, The communication valve (2) has a flow inlet (23), a blowdown outlet (25) and a salt water supplement inlet (26), resin filter cartridges are arranged in the treatment tanks, the salt water supplement inlet (26) is used for injecting salt water into the communication valve (2), the second communication port (221) can selectively simultaneously communicate the flow inlet (23) and the salt water supplement inlet (26), and when the second communication port (221) simultaneously communicates the flow inlet (23) and the salt water supplement inlet (26), the first communication port (211) selectively communicates the blowdown outlet (25) to form a regeneration mode, raw water and salt water are mixed and sequentially flow through the second treatment tank (16) and the first treatment tank (15) to regenerate the resin filter cartridges.

13. The water treatment device of claim 12, wherein, The water treatment device further comprises a salt supplement tank, the salt supplement tank has a salt water cavity accommodating salt water, the salt water cavity communicates with the salt water supplement inlet (26), the salt supplement tank is connected with the communication valve (2), and the salt water supplement inlet (26) can selectively communicate with the flow inlet (23) to form a water supplement mode.

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