A soft water treatment device

Abstract

The present invention relates to the technical field of water treatment, and specifically discloses a soft water treatment device, including a tank body, which is filled with resin particles. A central tube is arranged at the axis of the tank body, a water outlet pipe and a water inlet pipe connected to the central tube are installed on the top of the tank body, and a sewage valve is installed at the bottom. A plurality of baffle groups are arranged in the up and down directions in the tank body, and every two adjacent baffle groups are rotated and staggered 180 degrees relative to the axis of the tank body. The baffle group includes an upper baffle and a lower baffle, and a filling cavity is formed between the upper baffle and the lower baffle. The upper baffle and the lower baffle have the same structure, but are rotated and staggered 180 degrees relative to the axis of the tank body. During regeneration operation, a lifting mechanism controls the upper baffle to perform reciprocating lifting and lowering movements. The reciprocating extrusion action of the upper baffle forces the resin particles to deform through mechanical pressure, thereby squeezing out the pollutants remaining inside. This reciprocating extrusion method not only improves the regeneration effect, but also significantly reduces the time required for regeneration.

Description

Technical Field

[0001] The present invention relates to the technical field of water treatment, in particular to a soft water treatment device. Background Art

[0002] Natural water contains various salts, which, when dissolved, produce ions such as calcium and magnesium. Excessive levels of these elements can lead to excessive water hardness, which can negatively impact human health and daily life. Therefore, water softening is necessary. Softening equipment uses the ion exchange principle to remove scaling ions such as calcium and magnesium from the water. The entire softening process includes a complete cycle of softening, backwashing, regeneration, forward washing, and automatic water replenishment in the salt tank.

[0003] The Chinese patent document with authorization publication number CN107540052B discloses a soft water treatment system including a disinfection device, including a control valve, a resin tank, a salt box, an ionization generator, a drying pipe, and a three-way quick-connect pipe. The control valve includes a salt intake port, which is connected to the resin tank center pipe in the resin tank. The salt box is provided with an installation valve. One end of the drying pipe is an air inlet and the other end is an air outlet. The drying pipe is filled with desiccant. The ionization generator includes an air inlet, an air outlet, an electric air valve and an ionization device. The air inlet is connected to the air outlet. The ionization device is arranged between the air inlet and the air outlet, and the electric air valve is arranged at the air outlet. The three-way quick-connect pipe includes a first interface, a second interface and a third interface. The first interface is connected to the air outlet through a pneumatic pipe b, the second interface is connected to the installation valve through a water pipe a, and the third interface is connected to the salt intake port through a water pipe b.

[0004] During the water production cycle of the water softener, the initial water hardness is equal to 0ppm, and the subsequent water hardness is greater than 0ppm and less than or equal to 30ppm. When the water hardness is 0ppm, it is equivalent to completely removing the raw water hardness in the initial stage, resulting in a large resin utilization load, which will cause a short interval between two regenerations, frequent regeneration and high salt consumption. In addition, the resin near the hard water inlet tends to absorb more impurities. Therefore, the degree of resin usage in different parts is different. If all the resins are replaced, the resin utilization rate will be low. Summary of the Invention

[0005] The present invention provides a soft water treatment device, aiming to solve the problem of low resin utilization rate of water softeners in the related art.

[0006] A soft water treatment device comprises a tank body, a central tube is provided at the axis of the tank body, a water outlet pipe and a water inlet pipe connected to the central tube are installed on the top of the tank body, and a sewage valve is installed at the bottom. A plurality of baffle groups are provided in the tank body in the up and down directions, and every two adjacent baffle groups are rotated 180 degrees relative to the axis of the tank body. The baffle group comprises an upper baffle and a lower baffle, and a filling cavity is formed between the upper baffle and the lower baffle. The upper baffle and the lower baffle have the same structure, but are rotated 180 degrees relative to the axis of the tank body. The upper baffle and the lower baffle both comprise a hollow fixed plate and a rotating plate. A control mechanism and a lifting mechanism for controlling the lifting of all upper partitions are installed in the tank body. The control mechanism controls the rotation of the rotating plate so that it is staggered or overlapped with the fixed plate. During operation, the upper partition exerts downward pressure on the resin particles, and the water to be treated flows from bottom to top in the tank body and passes through multiple resin particle layers in sequence. During backflushing, the upper partition rises, the filler cavity space becomes larger, the rotating plate overlaps with the fixed plate, and clean water enters the water outlet pipe. The clean water flows from bottom to top in the tank body and passes through multiple resin particle layers in sequence for backflushing, and flushes the bottom resin out of the drain valve, and then the rotating plate is reset.

[0007] The effect is that during adsorption, hard water will enter the bottom area of ​​the tank through the water inlet pipe, and then the hard water will start to flow from bottom to top in the tank. During this flow process, the hard water will pass through multiple resin particle layers formed by the upper and lower baffles in turn. These upper and lower baffles use the rotating plates and fixed plates thereon to accurately control the flow direction of the resin particles. Under normal working conditions of the equipment, the rotating plates and the fixed plates are staggered with each other, which can effectively prevent the resin particles from falling from the upper baffle to the lower baffle. When the resin particles need to be replaced, the control mechanism will be started to make the rotating plate start to rotate. After the rotating plate rotates to a position overlapping with the fixed plate, the outlet for the resin particles to flow downward will be opened at the same time. At this time, the resin particles at the lowest bottom will enter the bottom of the tank, and new resin particles can be added to the water outlet pipe from the outside. The water outlet pipe will simultaneously pass the regeneration agent into the tank. When the regeneration agent is regenerated, new resin particles will also be brought into the top of the tank. After completing this process, the rotating plate will rotate and reset, and the drain valve will be opened to discharge the waste resin particles. During the backflushing process, the regeneration agent enters the tank through the outlet pipe, and also passes through multiple resin particle layers from bottom to top. At this time, the lifting mechanism will control the upper partition to perform reciprocating lifting and lowering movements. The reciprocating extrusion action of the upper partition forces the resin particles to deform through mechanical pressure, thereby squeezing out the residual pollutants inside. This reciprocating extrusion method not only improves the regeneration effect, but also significantly reduces the time required for regeneration. Through this unique partition group design and control mechanism, the effective utilization and replacement of resin particles are realized, thereby improving the utilization rate of resin particles and extending their service life. At the same time, through the coordinated work of backflushing and regeneration processes, the continuous and stable operation of the soft water treatment device is guaranteed, thereby improving the overall effect of soft water treatment.

[0008] Preferably, the rotating plate and the fixed plate are semicircular in shape, and a swivel one and a swivel two are coaxially arranged at the center of the rotating plate and the fixed plate respectively, and the swivel one and the swivel two are coaxially connected for rotation. Such a design enables the rotating plate and the fixed plate to rotate steadily and smoothly, ensuring the effective isolation and release of the resin particles.

[0009] Preferably, a slide groove is provided on the outer surface of the central tube along its length direction, and a slider adapted to the slide groove is provided on the inner circumference of the swivel one. The swivel two is rotatably and slidably connected to the fixed plate, so that the rotating plate can slide stably along the outer side of the central tube, and can also ensure that the relative position between the rotating plate and the fixed plate is correct, thereby ensuring the smooth operation of the device.

[0010] Preferably, the lifting mechanism includes a connecting rod slidably disposed within a chute, the connecting rod being fixedly connected to a rotating plate within the upper baffle. A telescopic drive source is connected between the connecting rod and the central tube, enabling the connecting rod to slide relative to the central tube. The telescopic drive source controls the lifting and lowering of the lifting rod, thereby achieving the desired elevation adjustment of the upper baffle relative to the central tube. In the initial stages of the water softening process, the telescopic drive source drives the connecting rod downward, causing the upper baffle to descend, exerting a certain amount of pressure on the resin particle layer. This applied pressure helps increase the density of the resin layer, allowing water to flow through it more quickly. Because the resin particles have a strong adsorption capacity at this stage, the water softening effect is fully achieved even with a relatively fast water flow. As the process progresses, in the later stages, the telescopic drive source forces the connecting rod upward, thereby raising the upper baffle and reducing the pressure on the resin particle layer. This reduced pressure increases the height of the resin particle layer, extending the residence time of water flowing through it, ensuring the water softening effect is maintained even when the adsorption capacity of the resin particles is relatively poor.

[0011] Preferably, the control mechanism includes a driving rod fixedly connected to the bottom of the connecting rod, and the bottom end of the driving rod passes through the bottom end of the tank body and is connected to the rotation driving source.

[0012] Preferably, the telescopic drive source is installed at the bottom of the tank body and is connected to the rotary drive source to control the lifting and lowering of the drive rod. When regeneration is performed, a regeneration agent, such as a common salt solution, is usually injected into the tank body through the water outlet pipe. Then, the telescopic drive source is started, and the telescopic drive source drives the connecting rod to perform reciprocating lifting and lowering movements. This movement causes the upper partition to periodically squeeze the resin particles. Through this reciprocating extrusion, the resin particles will be deformed due to the action of mechanical pressure, thereby effectively squeezing out the residual pollutants therein. In addition, this extrusion action can also accelerate the diffusion process of the regeneration agent inside the resin, thereby greatly shortening the time required for the entire regeneration.

[0013] Preferably, the radii of the arc-shaped edges of the rotating plate and the fixed plate are both greater than 180°, and the rotating plate and the fixed plate still maintain a portion of overlapping area when they are staggered from each other. This design enables a tight fit to be formed between the two, which can effectively prevent the passage of resin particles and ensure the normal adsorption work.

[0014] Preferably, the rotating plate in the upper partition is located above the fixed plate, and the bottom surface of the rotating plate is in contact with the top surface of the fixed plate; the fixed plate in the lower partition is located above the rotating plate, and the top surface of the rotating plate is in contact with the bottom surface of the fixed plate. When replacing the resin particles, the telescopic drive source is started, and the telescopic drive source drives the connecting rod to rise, so that the two adjacent rotating plates are in contact with each other, thereby preventing the resin particles from entering the interlayer between the two partition groups when replacing the resin particles.

[0015] Preferably, a slide is provided on the inner wall of the tank body along the height direction, and a slider that slides with the slide is provided on the curved surface of the fixed plate. A support member for supporting the edge of the lower partition is provided on the inner wall of the tank body, thereby sharing the pressure on the lower partition.

[0016] Preferably, a filter screen is provided at the bottom of the tank body, the top edge of the filter screen contacts the straight edge of the bottom surface of the rotating plate, the other edges of the filter screen are fixedly connected to the tank body, and the drain valve is installed on the side of the filter screen away from the fixed plate. When the rotating plate rotates 180° and overlaps with the fixed plate, the resin particles at the bottom enter the chamber, and the resin particles in the remaining filling cavities move downward to another filling cavity in turn. The resin particles are added to the water outlet pipe from the outside, and the water outlet pipe introduces the regeneration agent into the tank body while bringing the new resin particles into the top of the tank body. Finally, the rotating plate rotates 180° to reset, and the drain valve is opened to discharge the discarded resin particles, thereby completing the replacement of the resin particles.

[0017] By adopting the above technical solution, the beneficial effects of the present invention are:

[0018] 1. The control mechanism realizes the precise misalignment between the rotating plate and the fixed plate. This misalignment effectively prevents the resin particles from accidentally sliding from the upper partition to the lower partition. At the same time, the function of the lifting mechanism is to apply pressure to the upper partition to control the compression degree of the resin filler layer. In the early stage of the treatment process, in order to ensure that the resin filler layer is overused and can achieve the treatment effect, it is necessary to apply a large pressure to the resin filler layer. As time goes by, in order to increase the application of hard water through the resin filler layer to ensure the adsorption effect, the control mechanism will gradually reduce the pressure on the resin filler layer. In addition, the water inlet pipe is set to introduce hard water to be treated into the device. After entering the device, the hard water will flow upward from the bottom of the central pipe. During the rising process, the hard water will flow through multiple resin particle layers surrounded by the upper and lower partitions in turn. These resin particle layers can effectively adsorb metal ions in the water, thereby achieving the purpose of softening the water quality. After layer-by-layer treatment, the softened water will be discharged from the outlet pipe at the top of the device, thus completing the hard water softening work.

[0019] 2. After the resin particles reach saturation adsorption, regeneration must be performed to restore their adsorption capacity. The regenerant is introduced into the device through the outlet pipe. The regenerant will flow downward from the top of the device and flow through the entire resin layer. At the same time, the lifting mechanism will control the upper partition to perform reciprocating lifting and lowering movements, so that the upper partition exerts pressure on the resin particles and repeatedly squeezes them, causing the resin particles to deform. In this way, the pollutants remaining inside the resin particles can be effectively squeezed out. At the same time, the diffusion of the regenerant inside the resin particles can be accelerated to ensure full contact between the regenerant and the pollutants. When the regenerant and the pollutants are mixed, they will be guided to the water inlet pipe through the center pipe and finally discharged from the device. After the regeneration process is completed, the regenerant is stopped from being introduced into the device, and the device immediately returns to its normal working state for hard water softening. This design of deforming the resin particles and squeezing out residual pollutants inside by reciprocating extrusion not only improves the regeneration effect, but also significantly reduces the time required for regeneration.

[0020] 3. After the service life of the resin particles reaches the predetermined service limit, in order to ensure the normal operation of the equipment and the efficient use of the resin particles, the resin particles need to be replaced. First, the lifting mechanism is started to make the two adjacent rotating plates fit together. Then, the driving rod drives the rotating plate to rotate 180 degrees. After the rotating plate completes the 180-degree rotation, it completely overlaps with the fixed plate. At this time, the outlet for the resin particles to flow downward is opened. In this way, the resin particles at the lowest bottom can enter the bottom chamber. Then, the other resin particles in the filling chamber will move downward in turn and transfer to another filling chamber. During the process, new resin particles can be added to the water outlet pipe from the outside. At the same time, water or regeneration agent will be introduced into the device through the water outlet pipe. These media will bring the newly added resin particles to the top position of the device. Then, the rotating plate will rotate 180 degrees again to return to its original position, closing the outlet for the resin particles to flow downward. At this time, the drain valve will be opened to discharge the used and discarded resin particles to the outside of the device. After completing this series of operations, the device will return to its normal working state for hard water softening. This replacement method can ensure that the resin particles are fully utilized, avoiding the waste of resources caused by replacing all of them at one time. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] Figure 1 It is a structural schematic diagram of the present invention.

[0022] Figure 2 Schematic diagram of the internal structure of the tank body of the present invention.

[0023] Figure 3 for Figure 2 Schematic diagram of the enlarged structure at point A in the middle.

[0024] Figure 4 It is a top view of the fixing plate in the present invention.

[0025] Figure 5 It is a top view of the rotating plate in the present invention.

[0026] Figure 6 Schematic diagram of the position of the rotating plate fixedly connected to the connecting rod.

[0027] Figure 7 This is a schematic diagram of the resin particles of the present invention at the later stage of use.

[0028] Figure 8 This is a schematic diagram of the early stage of use of the resin particles of the present invention.

[0029] Figure 9 This is a schematic diagram of replacing resin particles according to the present invention.

[0030] Reference numerals:

[0031] 1. Tank body; 11. Control mechanism; 111. Drive rod; 112. Rotary drive source; 12. Lifting mechanism; 121. Connecting rod; 122. Telescopic drive source; 13. Slide; 14. Filter; 15. Support; 2. Center pipe; 21. Chute; 3. Outlet pipe; 4. Inlet pipe; 5. Drain valve; 6. Partition group; 61. Upper partition; 611. Rotating plate; 6111. Swivel 1; 612. Fixed plate; 6121. Swivel 2; 6122. Slider; 62. Lower partition. DETAILED DESCRIPTION

[0032] The embodiments of the present invention are described in detail below, and examples of the embodiments are shown in the accompanying drawings. The embodiments described below with reference to the accompanying drawings are exemplary and intended to be used to explain the present invention, but should not be understood as limiting the present invention.

[0033] like Figure 1 and Figure 2 As shown, a soft water treatment device includes a tank body 1, a central pipe 2, a water outlet pipe 3, a water inlet pipe 4 and a drain valve 5. The water outlet pipe 3 is connected to the top of the tank body 1, the central pipe 2 is rotatably installed at the axis inside the tank body 1, the water inlet pipe 4 is connected to the central pipe 2, and the drain valve 5 is installed at the bottom of the tank body 1. The tank body 1 is filled with resin particles. When water treatment is performed, hard water enters the bottom of the tank body 1 from the water inlet pipe 4, and then the hard water passes through the resin particles from bottom to top, and finally reaches the top of the tank body 1 and is discharged from the water outlet pipe 3.

[0034] Multiple baffle groups 6 are arranged at equal intervals along the height direction in the tube. Every two adjacent baffle groups 6 are rotated 180 degrees relative to the axis of the tank body 1. That is, the projections of every two adjacent baffle groups 6 on the horizontal plane overlap, but are 180 degrees rotationally symmetrical with each other.

[0035] like Figure 2-Figure 5As shown, the baffle group 6 is composed of an upper baffle 61 and a lower baffle 62, a filling cavity is formed between the upper baffle 61 and the lower baffle 62, and the resin particles are located in the filling cavity. The upper baffle 61 and the lower baffle 62 have the same structure and are composed of a hollow fixed plate 612 and a rotating plate 611. The rotating plate 611 and the fixed plate 612 are semicircular in shape, and a rotating ring 1 6111 and a rotating ring 2 6121 are coaxially arranged at the center of the rotating plate 611 and the fixed plate 612 respectively. The rotating ring 1 6111 and the rotating ring 2 6121 are coaxially connected for rotation. The rotating ring 1 6111 and the rotating ring 2 6121 can be connected by a bearing or a similar rotating connection to reduce friction. Friction and wear are reduced, and the service life is improved. At the same time, the coaxial setting of the swivel 1 6111 and the swivel 2 6121 also ensures the coaxiality of the rotating plate 611 and the fixed plate 612 during the rotation process, avoiding vibration and noise caused by eccentricity. However, the upper partition 61 and the lower partition 62 are rotated 180 degrees relative to the axis of the tank body 1, that is, the fixed plates 612 are staggered with each other, one is located on the left and the other is located on the right. In the two adjacent partition groups 6, the lower partition 62 in the upper partition group 6 and the upper partition 61 in the lower partition group 6 overlap in the horizontal plane, that is, the two fixed plates 612 close to each other are located on the same side;

[0036] The rotating plate 611 in the upper partition 61 is located above the fixed plate 612, and the bottom surface of the rotating plate 611 is in contact with the top surface of the fixed plate 612. The fixed plate 612 in the lower partition 62 is above the rotating plate 611, and the top surface of the rotating plate 611 is in contact with the bottom surface of the fixed plate 612. When replacing the resin particles, the two rotating plates 611 are in contact with each other to prevent the resin particles from entering the interlayer between the two partition groups 6.

[0037] The radii of the curved edges of the rotating plate 611 and the fixed plate 612 are both greater than 180°. This design allows the rotating plate 611 and the fixed plate 612 to still partially overlap when they are staggered, allowing a tight fit to be formed between the two, effectively preventing the passage of resin particles and improving the control accuracy of the device over the resin particles.

[0038] A control mechanism 11 and a lifting mechanism 12 are installed in the tank body 1. The control mechanism 11 is used to control the rotation of all the rotating plates 611 so that they are staggered or overlapped with the fixed plate 612. When the rotating plates 611 and the fixed plates 612 are staggered, the rotating plates 611 and the fixed plates 612 separate the upper and lower parts thereof, thereby preventing resin particles from falling from the upper part to the lower part. When the rotating plates 611 and the fixed plates 612 overlap, an outlet is formed for the resin particles to pass through the upper partition 61 and the lower partition 62, so that the resin particles at the bottom go out through the opened outlet. After replacing the resin particles, the lifting mechanism 12 controls all the upper partitions 61 to descend. When pressure is applied to the resin particles, according to the fluid mechanics formula V=Q / S (linear velocity=flow rate / cross-sectional area), the height (H) of the resin particle layer decreases after extrusion, and the cross-sectional area (S) decreases due to the decrease in porosity, resulting in an increase in the linear velocity (V). At this time, the contact time t=H / V will shorten as the flow rate increases, so that water can quickly pass through the resin particles when the resin adsorption effect is best in the early stage. When the resin adsorption effect is poor in the later stage, the upper partition 61 rises and no longer applies pressure to the resin particles, so that the time for water to flow through the resin particles is prolonged, ensuring the adsorption effect, thereby fully utilizing the resin particles and extending the service life of the resin particles.

[0039] A slide groove 21 is provided on the outer surface of the central tube 2 in the height direction, and a slider 6122 is provided on the inner circumference of the first swivel 6111 to match the slide groove 21, so that the first swivel 6111 and the central tube 2 can slide up and down, so that the rotating plate 611 can only be raised and lowered relative to the central tube 2. The second swivel 6121 is rotatably and slidably connected to the fixed plate 612, so that the fixed plate 612 can be raised, lowered, and rotated relative to the central tube 2.

[0040] Two slides 13 are provided on the inner wall of the tank body 1 along the height direction, and sliders 6122 cooperating with the two slides 13 are respectively provided at both ends of the curved surface of the fixed plate 612, so that the fixed plate 612 can only be raised and lowered relative to the central tube 2, and a plurality of groups of support members 15 with the same number as the lower partitions 62 are provided on the inner wall of the tank body 1, each group of support members 15 corresponds one-to-one to each lower partition 62, and each group of support members 15 has two rows, respectively supporting the edges of the rotating plate 611 and the fixed plate 612, thereby sharing the pressure on the lower partition 62, and a mounting hole running through the inside and outside is provided on the tank body 1 for installing the support members 15, and the support members 15 are sealed and connected to the tank body 1 to prevent water leakage in the tank body 1.

[0041] The lifting mechanism 12 includes a connecting rod 121 and a telescopic drive source 122. The connecting rod 121 is parallel to the central tube 2. A recess is provided on the central tube 2 to match the connecting rod 121. The connecting rod 121 is located in the recess and the two are attached to each other, so that the connecting rod 121 can be lifted relative to the central tube 2. The connecting rod 121 is fixedly connected to the rotating plate 611 in the upper partition 61 (as shown in FIG. Figure 6As shown in FIG2 , the telescopic drive source 122 controls the lifting and lowering of the lifting rod, thereby controlling the lifting and lowering of the upper partition 61 relative to the central tube 2. In the initial stage, the telescopic drive source 122 causes the connecting rod 121 to descend, thereby causing the upper partition 61 to descend and exert pressure on the resin particle layer, thereby increasing the density of the resin layer and allowing water to flow through the resin particles quickly. At this time, the resin particles have a strong adsorption capacity, and the rapid passage of water can also ensure the hard water softening effect. In the later stage, the telescopic drive source 122 causes the connecting rod 121 to ascend, thereby causing the upper partition 61 to ascend and reduce the pressure on the resin particles. Therefore, when the resin particle adsorption effect is poor, the time for water to flow through the resin particles is prolonged, thereby ensuring the hard water softening effect.

[0042] The control mechanism 11 includes a driving rod 111 and a rotating driving source 112. The bottom end of the lifting rod is fixedly connected to the driving rod 111. The driving rod 111 passes through the bottom end of the tank body 1. The axis of the driving rod 111 is collinear with the axis of the central tube 2. The rotating driving source 112 is preferably a motor. The output shaft of the motor is fixedly connected to the bottom end of the driving rod 111. The telescopic driving source 122 is preferably an electric telescopic rod. The electric telescopic rod is fixedly mounted on the tank body 1. The piston rod of the electric rod is fixedly connected to the motor, thereby controlling the driving rod 111 to lift and lower the connecting rod 121. During regeneration, the regeneration agent (such as salt solution) is introduced into the tank body 1 through the water outlet pipe 3. The driving rod 111 is started to lift and lower the connecting rod 121 reciprocatingly, so that the upper partition 61 reciprocates to extrude the resin particles. The reciprocating extrusion forces the resin particles to deform through mechanical pressure, squeezes out the residual pollutants inside, and the extrusion can accelerate the diffusion of the regeneration agent inside the resin, shortening the regeneration time.

[0043] The bottom of the tank body 1 is provided with a filter 14 for blocking the resin particles. The top edge of the filter 14 contacts the straight edge of the bottom surface of the rotating plate 611. The other edges of the filter 14 are fixedly connected to the tank body 1, thereby dividing the bottom of the tank body 1 into two chambers on the left and right. The drain valve 5 is installed in the chamber away from the fixed plate 612. Since the resin particles at the bottom are located at the front end of the hard water treatment, the adsorption effect of the resin particles at the bottom decreases the fastest. When the resin at the bottom needs to be replaced, the motor is started to rotate the driving rod 111, thereby rotating the connecting rod 121 and the central tube 2, so that The rotating plate 611 rotates. After the rotating plate 611 rotates 180°, the rotating plate 611 overlaps with the fixed plate 612, and the outlet for the resin particles to flow downward is opened. The resin particles at the bottom enter the chamber, and the resin particles in the remaining filling chambers move downward to another filling chamber in turn. The resin particles are added to the water outlet pipe 3 from the outside. The water outlet pipe 3 introduces the regeneration agent into the tank body 1 while bringing the new resin particles into the top of the tank body 1. Finally, the rotating plate 611 rotates 180° to reset, and the drain valve 5 is opened to discharge the waste resin particles, thereby completing the replacement of the resin particles.

[0044] Working principle: During adsorption operation, hard water enters the bottom of the tank body 1 through the water inlet pipe 4, and then flows from bottom to top in the tank body 1. During the flow process, the hard water passes through multiple layers of resin particles between the upper partition 61 and the lower partition 62. The upper partition 61 and the lower partition 62 control the flow of resin particles through the rotating plate 611 and the fixed plate 612 thereon. Under normal working conditions, the rotating plate 611 and the fixed plate 612 are staggered to prevent the resin particles from falling from the upper partition 61 to the lower partition 62. When the resin particles need to be replaced, the motor is started to rotate the driving rod 111, thereby rotating the connecting rod 121 and the central tube 2, thereby rotating the rotating plate 611. 11 rotates. When the rotating plate 611 rotates 180°, the rotating plate 611 overlaps with the fixed plate 612, and the outlet for the resin particles to flow downward is opened. The resin particles at the lowest bottom enter the chamber, and the resin particles in the remaining filling cavities move downward to another filling cavity in turn. The resin particles are added to the water outlet pipe 3 from the outside. The water outlet pipe 3 introduces the regeneration agent into the tank body 1 and brings the new resin particles to the top of the tank body 1. Finally, the rotating plate 611 rotates 180° to reset, and the drain valve 5 is opened to discharge the waste resin particles.

[0045] During the regeneration process, the regeneration agent enters the tank body 1 through the outlet pipe 3 and passes through multiple layers of resin particles from bottom to top. At this time, the lifting mechanism 12 controls the reciprocating movement of the upper partition 61, which squeezes the resin particles. This reciprocating movement deforms the resin particles through mechanical pressure, squeezing out any remaining contaminants. This improves the regeneration effect and reduces regeneration time.

[0046] The soft water treatment device of the present invention realizes the effective utilization and replacement of resin particles through the partition group 6 and the control mechanism 11, improves the utilization rate of the resin particles, and extends the service life. At the same time, through the backwash and regeneration process, the soft water treatment device is guaranteed to operate continuously and stably, thereby improving the soft water treatment effect.

[0047] The soft water treatment device has three working states, namely hard water softening, regeneration and resin replacement.

[0048] Water softening involves the following steps:

[0049] Step 1: The control mechanism 11 is used to stagger the rotating plate 611 and the fixed plate 612 to prevent the resin particles from falling from the upper partition 61 to the lower partition 62;

[0050] Step 2: Control the pressure of the upper partition 61 on the resin filling layer through the lifting mechanism 12. In the early stage, the pressure on the resin filling layer is relatively large (such as Figure 8 As shown), the pressure on the resin filler layer gradually decreases over time (as shown Figure 7 shown);

[0051] Step 3: Introduce hard water to be treated into the device through the water inlet pipe 4. The hard water flows upward from the bottom of the central tube 2 and passes through multiple resin particle layers surrounded by the upper partition 61 and the lower partition 62 in sequence.

[0052] Step 4: The softened water is discharged from the outlet pipe 3 at the top of the device, completing the hard water softening process.

[0053] The regeneration process involves the following steps:

[0054] Step 1: When the resin particles are saturated with adsorption, regeneration is required. At this time, regeneration agent is introduced into the device through the outlet pipe 3, and the regeneration agent also flows downward from the top of the device;

[0055] Step 2: During the regeneration process, the lifting mechanism 12 controls the upper partition 61 to rise and fall back and forth. The upper partition 61 reciprocates to squeeze the resin particles, forcing the resin particles to deform, squeezing out the residual contaminants inside, and accelerating the diffusion of the regeneration agent inside the resin particles;

[0056] Step 3: The regenerant and pollutants enter the central tube 2 and flow out from the water inlet pipe 4;

[0057] Step 4: After regeneration is completed, stop feeding the regeneration agent and the device returns to the hard water softening working state.

[0058] Resin replacement work includes the following steps:

[0059] Step 1: When the resin particles are used to a certain extent and need to be replaced, the lifting mechanism 12 is started to make the two rotating plates 611 adjacent to each other, and then the motor in the control mechanism 11 is started to make the driving rod 111 rotate the rotating plates 611 180 degrees;

[0060] Step 2: After the rotating plate 611 rotates 180 degrees, it overlaps with the fixed plate 612, opening the outlet for the resin particles to flow downward, and the resin particles at the bottom enter the chamber, and the resin particles in the remaining filling cavities move downward to another filling cavity (such as Figure 9 shown);

[0061] Step 3: Add new resin particles to the water outlet pipe 3 from the outside, and at the same time, the water outlet pipe 3 introduces water or regeneration agent into the device to bring the new resin particles to the top of the device;

[0062] Step 4: The rotating plate 611 is rotated 180° again to reset, closing the outlet for the resin particles to flow downward, and opening the drain valve 5 to discharge the waste resin particles out of the device;

[0063] Step 5: After the resin replacement is completed, the device returns to the hard water softening working state.

[0064] Although the embodiments of the present invention have been shown and described above, it will be understood that the above embodiments are illustrative and are not to be construed as limitations on the present invention. A person skilled in the art may change, modify, replace and modify the above embodiments within the scope of the present invention.

Claims

1. A soft water treatment device, comprising a tank body (1), a central tube (2) provided at the inner axis of the tank body (1), a water outlet pipe (3) and a water inlet pipe (4) connected to the central tube (2) installed on the top of the tank body (1), and a drain valve (5) installed at the bottom, characterized in that: A plurality of baffle groups (6) are arranged in the tank body (1) along the vertical direction, and each two adjacent baffle groups (6) are rotated 180 degrees relative to the axis of the tank body (1). The baffle group (6) includes an upper baffle (61) and a lower baffle (62). A filling cavity is formed between the upper baffle (61) and the lower baffle (62). The upper baffle (61) and the lower baffle (62) have the same structure, but are rotated 180 degrees relative to the axis of the tank body (1). The upper baffle (61) and the lower baffle (62) both include a hollow fixed plate (612) and a rotating plate (611). A control mechanism (11) and a control mechanism for controlling all the upper baffles (61) are installed in the tank body (1). ) is lifted and lowered by a lifting mechanism (12), and a control mechanism (11) controls the rotation of the rotating plate (611) to stagger or overlap with the fixed plate (612). During operation, the upper baffle (61) exerts downward pressure on the resin particles, and the water to be treated flows from bottom to top in the tank body (1) and passes through multiple resin particle layers in sequence. During backwashing, the upper baffle (61) rises, the space of the filler cavity becomes larger, the rotating plate (611) overlaps with the fixed plate (612), and the outlet pipe (3) enters clean water. The clean water flows from bottom to top in the tank body (1) and passes through multiple resin particle layers in sequence for backwashing, and flushes the bottom resin out of the sewage valve (5), and then the rotating plate (611) is reset.

2. The soft water treatment device according to claim 1, characterized in that The rotating plate (611) and the fixed plate (612) are semicircular in shape, and a rotating ring (6111) and a rotating ring (6121) are coaxially arranged at the centers of the rotating plate (611) and the fixed plate (612), respectively. The rotating ring (6111) and the rotating ring (6121) are coaxially connected for rotation.

3. The soft water treatment device according to claim 2, characterized in that A sliding groove (21) is provided on the outer surface of the central tube (2) along its length direction, and a sliding block (6122) adapted to the sliding groove (21) is provided on the inner circumferential surface of the rotating ring (6111). The rotating ring (6121) is connected to the fixed plate (612) in a rotatable and sliding manner.

4. The soft water treatment device according to claim 3, characterized in that The lifting mechanism (12) includes a connecting rod (121) slidably arranged in a slide groove (21), the connecting rod (121) being fixedly connected to a rotating plate (611) in an upper partition (61), and a telescopic driving source (122) for causing the connecting rod (121) to slide relative to the central tube (2) being connected between the connecting rod (121) and the central tube (2).

5. The soft water treatment device according to claim 4, characterized in that The control mechanism (11) comprises a driving rod (111) fixedly connected to the bottom of the connecting rod (121), wherein the bottom end of the driving rod (111) passes through the bottom end of the tank body (1) and is connected to a rotation driving source (112).

6. The soft water treatment device according to claim 5, characterized in that The telescopic driving source (122) is installed at the bottom of the tank body (1) and is connected to the rotary driving source (112), thereby controlling the lifting and lowering of the driving rod (111).

7. The soft water treatment device according to claim 2, characterized in that The arc angles of the arc-shaped edges of the rotating plate (611) and the fixed plate (612) are both greater than 180°.

8. The soft water treatment device according to claim 7, characterized in that The rotating plate (611) in the upper partition (61) is located above the fixed plate (612), and the bottom surface of the rotating plate (611) is in contact with the top surface of the fixed plate (612); the fixed plate (612) in the lower partition (62) is located above the rotating plate (611), and the top surface of the rotating plate (611) is in contact with the bottom surface of the fixed plate (612).

9. The soft water treatment device according to claim 1, characterized in that A slideway (13) is provided on the inner wall of the tank body (1) along the height direction, a slider (6122) is provided on the curved surface of the fixed plate (612) and is slidably engaged with the slideway (13), and a support member (15) is provided on the inner wall of the tank body (1) for supporting the edge of the lower partition (62).

10. The soft water treatment device according to any one of claims 2 to 9, characterized in that: A filter screen (14) is provided at the bottom of the tank body (1), the top edge of the filter screen (14) contacts the straight edge of the bottom surface of the rotating plate (611), the other edges of the filter screen (14) are fixedly connected to the tank body (1), and the drain valve (5) is installed on the side of the filter screen (14) away from the fixed plate (612).

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