Low energy consumption circulating water desalination device

Abstract

This invention discloses a low-energy-consumption circulating water desalination device, relating to the field of circulating water desalination technology. It includes a tank and a control valve. The tank is filled with ion exchange resin. The control valve is located at the top of the tank and connected to a pipeline assembly. The control valve draws circulating water containing heavy metal ions into the tank through the pipeline assembly. A central pipe is installed inside the tank and connected to the control valve. Through the exchange of metal ions in the circulating water by the resin inside the tank, water softening, desalination, and purification are achieved. An upper water distributor is rotatably installed. When the circulating water flows through the leaks, a reaction force is generated, pushing the upper water distributor to rotate. Even if there are gaps between the leaks, the continuous rotation of the upper water distributor ensures that the circulating water is evenly sprayed onto the surface of the resin pile, guaranteeing full contact between the resin pile surface and the circulating water, thus improving resin utilization.

Description

Technical Field

[0001] This invention belongs to the field of circulating water desalination, specifically relating to a low-energy-consumption circulating water desalination device. Background Technology

[0002] Circulating water desalination typically employs ion exchange to remove heavy metal ions from the circulating water, thereby softening and cleaning the water.

[0003] Patent publication number CN223047305U relates to a resin adsorption tank, belonging to the technical field of resin adsorption tanks. The tank includes a tank body made of stainless steel, with a sealing cover on top. The sealing cover and the tank body are separated and sealed by a hydraulic lifting system. A water inlet pipe is located on the sealing cover, and a water outlet pipe is located below the tank body. A fluid distributor is located below the water inlet pipe. A resin bed is located inside the tank, below the fluid distributor, and connected to the sealing cover via a lifting structure. The resin bed has a multi-layer structure, with each layer connected by a quick-connect device. This application utilizes a screw lift and lifting lugs to achieve rapid vertical movement of the resin bed, greatly simplifying the resin bed replacement process and significantly reducing maintenance time and labor requirements. The multi-layer resin bed structure, combined with the quick-connect device, allows for independent replacement and maintenance of each resin layer. In the aforementioned patent, the fluid distributor ensures uniform flow of the fluid upon entering the resin bed, avoiding excessive concentration or circumduction of the fluid in local areas and improving adsorption efficiency. However, the positions of the guide plate and surface guide holes are fixed, and the water flow can only reach the resin surface through a limited path. The guide plate has blind spots, and the water flow cannot be evenly sprayed on the resin surface, making effective adsorption difficult. The water flow is concentrated in a fixed position for a long time, impacting the resin layer and easily causing pits on the resin surface, affecting the contact area with the water flow. Summary of the Invention

[0004] The present invention addresses the problem of overly simplistic solutions in existing technologies by providing a significantly different solution. Specifically, the present invention aims to provide a low-energy-consumption circulating water desalination device to solve the problem mentioned in the background art where the spacing between the water outlet holes on the surface of the water distributor in the resin tank causes blind spots in the water spray range, making it difficult to uniformly spray circulating water onto the surface of the resin stack.

[0005] To achieve the above objectives, the present invention provides the following technical solution: a low-energy circulating water desalination device, comprising a tank and a control valve. The tank is filled with ion exchange resin. The control valve is located at the top of the tank and is connected to a pipeline assembly. The control valve draws circulating water containing heavy metal ions into the tank through the pipeline assembly. A central pipe is installed inside the tank and is connected to the control valve. Through the exchange of metal ions in the circulating water by the resin inside the tank, water softening, desalination, and purification are achieved. The central pipe is rotatably mounted at the top. The system includes an upper water distributor. Circulating water is drawn into the tank through a pipeline assembly and controlled by a control valve. The upper water distributor disperses the water flow, spraying it onto the surface of the resin stack. A lower water distributor is fixedly installed at the bottom of the central pipe. The tank also includes a vortex spraying device, a protective device, and a loosening device. The vortex spraying device includes a fixing frame, which is fixedly installed on the outer wall of the central pipe. The outer wall of the upper water distributor has several leakage holes. When circulating water flows out through the leakage holes on the surface of the upper water distributor, a reaction force is generated, pushing the upper water distributor to rotate.

[0006] In some embodiments, the outer wall of the upper water distributor is provided with a telescopic ring. When the upper water distributor rotates, the centrifugal force generated causes the telescopic ring to expand outward. The telescopic ring consists of several outer rings and inner rings. The outer rings are slidably installed on the inner wall of the upper water distributor, and the inner rings are sleeved between adjacent outer rings. The greater the water flow and the faster the rotation speed of the upper water distributor, the greater the centrifugal force generated, and the greater the outward expansion of the telescopic ring. Several support plates are installed on the inner wall of the fixed frame, and a sliding frame is slidably installed on the outer wall of the support plate. After the telescopic ring expands outward, it squeezes the sliding frame, pushing the sliding frame to move outward. Rotating rods are rotatably mounted on both sides of the top of the plate. After the sliding frame moves, it presses the rotating rods, causing them to rotate. A push plate is slidably mounted on the inner wall of the support plate near the rotating rods. After the rotating rods rotate, they push the push plate to move. An arc head is slidably mounted on the inner wall of the support plate near the upper water distributor. A push spring is provided between the arc head and the push plate. After the push plate moves, it presses the push spring, causing it to contract. The surface of the arc head contacts the outer wall of the upper water distributor. After the push spring is compressed and contracted by the push plate, the thrust on the arc head increases, increasing the friction between the arc head and the drain hole. This increases the resistance when the upper water distributor rotates, limiting the rotation speed of the upper water distributor.

[0007] In some embodiments, the drain holes are arranged sequentially along the tangent direction of the water distributor's cross-section, and a first torsion spring is provided between the rotating rod and the support plate, the elastic force of the first torsion spring causing the rotating rod to return to its original position.

[0008] In some embodiments, the protective device includes two elastic telescopic rods, which are respectively installed on the front and rear sides of the top of the upper water distributor. The rotation of the upper water distributor drives the elastic telescopic rods to rotate. A scraper is installed on the outer wall of the free end of the elastic telescopic rod. The rotation of the elastic telescopic rod drives the scraper to rotate. The scraper is in contact with the inner wall of the tank. After the scraper rotates, it scrapes off the residual circulating water on the inner wall of the tank.

[0009] In some embodiments, a protrusion is installed on the outer wall of the rear elastic telescopic rod, an arc rail is installed on the inner wall of the tank near the protrusion, and a wheel rim is installed at the bottom of the free end of the elastic telescopic rod. Under the push of the protrusion by the inner wall of the arc rail, the free end of the elastic telescopic rod moves downward.

[0010] In some embodiments, the scraper surface has a groove. After the wall-mounted circulating water is scraped off by the scraper, it enters the groove due to inertia. A connecting rod is installed on the outer wall of the fixed end of the elastic telescopic rod. A water collection tank is installed at the bottom of the connecting rod. Residual circulating water flows into the bottom water collection tank through the groove for temporary storage. A pressure plate is fixedly installed on the inner wall of the groove. When the scraper moves upward each time, it drives the water collection tank to move upward. The pressure plate gradually enters the water collection tank and squeezes the circulating water stored in the water collection tank. A spray pipe is installed at the bottom of the water collection tank. The spray pipe is connected to the inside of the water collection tank. The circulating water that has been squeezed is sprayed out through the spray pipe.

[0011] In some embodiments, a front sleeve rod is hinged to the front side of the inner wall of the wheel rim, and a rear sleeve rod is sleeved to the rear side of the inner wall of the wheel rim. The front sleeve rod and the rear sleeve rod are sleeved together. When the wheel rim rotates, it drives the front sleeve rod and the rear sleeve rod to rotate, pushing the resin in the raised part at the edge of the pit. A stop bar is installed on the inner wall of the tank. A protruding rod is installed on the top of the rear sleeve rod. After deflection, the rear sleeve rod moves towards the front sleeve rod under the pressure of the inner wall of the wheel rim. The front sleeve rod and the rear sleeve rod move closer to each other. A second torsion spring is provided between the front sleeve rod and the wheel rim. The elastic force of the second torsion spring causes the front sleeve rod to return to its original position.

[0012] In some embodiments, the front and rear sleeve rods are each equipped with a diagonal strip and a sliding plate. The front and rear sleeve rods are brought close to each other, so that the bottom slope of the diagonal strip on each surface presses against the sliding plate on the other surface, pushing the sliding plate downward. The sliding plate is slidably installed on the sides of the front and rear sleeve rods. Several pointed plates are installed at the bottom of the sliding plate. The pointed plates reciprocate and extend, working in conjunction with the front and rear sleeve rods to continuously push the surface of the resin pile, improving the loosening effect.

[0013] Compared with the prior art, the beneficial effects of the present invention are: 1. This invention uses a rotating water distributor. When circulating water flows through the leak holes, it generates a reaction force that drives the water distributor to rotate. Even if there are gaps between the leak holes, the continuous rotation of the water distributor ensures that the circulating water is evenly sprayed on the surface of the resin stack, guaranteeing that the surface of the resin stack is fully in contact with the circulating water and improving the resin utilization rate. Furthermore, the rotation of the water distributor relies on the reaction force of the water flow, eliminating the need for additional drive equipment such as motors and reducing power consumption.

[0014] 2. This invention applies resistance to the rotation of the upper water distributor by using the arc head, thereby stabilizing the rotation speed of the upper water distributor. The greater the water flow, the greater the thrust on the arc head after the push spring is compressed and contracted by the push plate. This increases the friction between the arc head and the leakage hole, thus increasing the resistance when the upper water distributor rotates. This limits the rotation speed of the upper water distributor and prevents the upper water distributor from rotating excessively and directly throwing the circulating water onto the exposed inner wall of the tank. This ensures that the circulating water comes into direct contact with the resin after flowing down without sticking to the wall, thus guaranteeing purification efficiency.

[0015] 3. This invention uses a rotating scraper to remove residual circulating water from the inner wall of the tank, preventing the circulating water from remaining on the inner wall for a long time and forming solid crystals that are difficult to clean. At the same time, the residual water scraped off by the scraper does not fall immediately, but flows into the water collection tank for temporary storage. When the free end of the elastic telescopic rod returns to its original position, the pressure plate squeezes out the residual circulating water stored in the water collection tank and sprays it out through the nozzle. The nozzle is directed towards the central axis of the tank, so that the sprayed circulating water is away from the inner wall of the tank and directly sprinkles onto the surface of the resin pile. This ensures that the circulating water that is stuck on the wall is directly purified after being scraped off by the scraper, and avoids re-sticking to the wall.

[0016] 4. This invention uses the rotation of the wheel rim to drive the front and rear sleeve rods to rotate, pushing the resin on the raised part at the edge of the pit, so that the surface of the resin pile is restored to flatness. At the same time, the pointed plate frequently extends from the surface of the front and rear sleeve rods to shear the surface of the resin pile, loosen the surface resin, avoid excessive resin accumulation, and ensure that the internal gaps of the resin pile allow the circulating water to flow smoothly and stably for purification. Attached Figure Description

[0017] To more clearly illustrate the technical solutions of the embodiments of this application, the drawings used in the description of the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this application. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0018] Figure 1 This is a schematic diagram of the overall structure provided for an embodiment of this application; Figure 2 This is a schematic diagram of the internal structure provided for an embodiment of this application; Figure 3 This is a schematic diagram of the vortex spray device provided in the embodiments of this application; Figure 4 This is a schematic diagram of the upper water distributor structure provided in an embodiment of this application; Figure 5 This is a schematic diagram of the arc head structure provided in an embodiment of this application; Figure 6 This is a schematic diagram of the scraper structure provided in an embodiment of this application; Figure 7 This is a schematic diagram of the groove structure provided in an embodiment of this application; Figure 8 This is a schematic diagram of the wheel rim structure provided in an embodiment of this application; Figure 9 This is a schematic diagram of the pointed plate structure provided in an embodiment of this application.

[0019] Figure label: 1. Tank body; 2. Control valve; 3. Piping assembly; 4. Central pipe; 5. Upper water distributor; 6. Lower water distributor; 71. Leakage hole; 72. Fixing frame; 73. Support plate; 74. Telescopic ring; 75. Arc head; 76. Push spring; 77. Push plate; 78. Rotating rod; 79. Sliding frame; 81. Elastic telescopic rod; 82. Arc rail; 83. Scraper; 84. Wheel rim; 85. Groove; 86. Connecting rod; 87. Pressure plate; 88. Water collection tank; 89. Spray pipe; 91. Front sleeve rod; 92. Rear sleeve rod; 93. Protruding rod; 94. Stop rod; 95. Diagonal bar; 96. Pointed plate; 97. Slide plate. Detailed Implementation

[0020] The following is in conjunction with the appendix Figure 1 - Figure 9 This application will be described in further detail.

[0021] This application discloses a low-energy-consumption circulating water desalination device.

[0022] refer to Figure 1 - Figure 9 The system includes a tank 1 and a control valve 2. The tank 1 is filled with ion exchange resin. The control valve 2 is located at the top of the tank 1 and is connected to a pipeline assembly 3. The control valve 2 draws circulating water containing heavy metal ions into the tank 1 through the pipeline assembly 3. A central pipe 4 is installed inside the tank 1 and is connected to the control valve 2. The resin inside the tank 1 exchanges metal ions in the circulating water, achieving water softening, desalination, and purification. A top water distributor 5 is rotatably installed on the top of the central pipe 4. Circulating water is drawn into the tank 1 through the pipeline assembly 3 by the control valve 2, and the water flow is dispersed by the top water distributor 5, making the circulating water... The water is sprayed onto the surface of the resin stack. A lower water distributor 6 is fixedly installed at the bottom of the central pipe 4. The tank body 1 is also equipped with a swirling spray device, a protective device, and a loosening device. The swirling spray device includes a fixing frame 72, which is fixedly installed on the outer wall of the central pipe 4. The outer wall of the upper water distributor 5 has several leakage holes 71. When the circulating water flows outward through the leakage holes 71 on the surface of the upper water distributor 5, a reaction force is generated, which pushes the upper water distributor 5 to rotate. Even if there are gaps between the leakage holes 71, the continuous rotation of the upper water distributor 5 ensures that the circulating water is evenly sprayed onto the surface of the resin stack, ensuring that the surface of the resin stack is fully in contact with the circulating water and improving the resin utilization rate.

[0023] The upper water distributor 5 has a telescopic ring 74 on its outer wall. When the upper water distributor 5 rotates, the centrifugal force generated causes the telescopic ring 74 to expand outward. The telescopic ring 74 consists of several outer rings and inner rings. The outer rings are slidably installed on the inner wall of the upper water distributor 5, and the inner rings are fitted between adjacent outer rings. The greater the water flow and the faster the rotation speed of the upper water distributor 5, the greater the centrifugal force generated, and the greater the outward expansion of the telescopic ring 74. Several support plates 73 are installed on the inner wall of the fixed frame 72. Sliding frames 79 are slidably installed on the outer wall of the support plates 73. After the telescopic ring 74 expands outward, it squeezes the sliding frame 79, pushing the sliding frame 79 to move outward. Rotating rods 78 are rotatably installed on both sides of the top of the support plates 73. After the sliding frame 79 moves, it squeezes the rotating rods 78, causing the rotating rods 78 to move outward. 8. A push plate 77 is slidably installed on the inner wall of the support plate 73 near the rotating rod 78. After the rotating rod 78 rotates, it pushes the push plate 77 to move. An arc head 75 is slidably installed on the inner wall of the support plate 73 near the upper water distributor 5. A push spring 76 is provided between the arc head 75 and the push plate 77. After the push plate 77 moves, it squeezes the push spring 76, causing the push spring 76 to contract. The surface of the arc head 75 contacts the outer wall of the upper water distributor 5. After the push spring 76 is squeezed and contracted by the push plate 77, the thrust on the arc head 75 increases, which increases the friction between the arc head 75 and the leakage hole 71, making the resistance when the upper water distributor 5 rotates larger, limiting the speed of the upper water distributor 5, and preventing the upper water distributor 5 from rotating excessively and directly throwing the circulating water into the exposed inner wall of the tank 1.

[0024] The leakage holes 71 are arranged sequentially along the tangent of the cross-section of the water distributor. A first torsion spring is provided between the rotating rod 78 and the support plate 73. The elastic force of the first torsion spring causes the rotating rod 78 to return to its original position.

[0025] In this embodiment, the tank 1 is filled with ion exchange resin. The control valve 2 draws circulating water containing heavy metal ions into the tank 1 through the pipeline group 3. The resin inside the tank 1 exchanges the metal ions in the circulating water, thereby achieving water softening, desalination and purification.

[0026] Circulating water is drawn into the tank 1 through pipe assembly 3 and controlled by valve 2. The water flow is dispersed by the upper water distributor 5, spraying the circulating water onto the surface of the resin stack. In existing technology, the water distributor is fixedly installed inside the resin tank. However, the gaps between the water outlets on the distributor's surface create blind spots in the spray range, making it difficult to evenly spray the circulating water onto the resin stack surface. Some resin fails to contact the circulating water requiring purification, resulting in low resin utilization. By rotating the upper water distributor 5 between the central pipe 4 and the control valve 2, when circulating water flows out through the drain holes 71 on the surface of the upper water distributor 5, a reaction force is generated in the tangential direction of the upper water distributor 5's cross-section, pushing it to rotate. Even with gaps between the drain holes 71, the continuous rotation of the upper water distributor 5 ensures that the circulating water is evenly sprayed onto the resin stack surface, guaranteeing sufficient contact between the resin stack surface and the circulating water, thus improving resin utilization. Furthermore, the rotation of the upper water distributor 5 relies on the reaction force of the water flow, eliminating the need for additional motors or other drive equipment, reducing power consumption. To ensure sufficient clearance between resin particles inside tank 1, a certain amount of unfilled resin is typically left inside tank 1. This portion of the inner wall of tank 1 is directly exposed. When the total volume of circulating water to be purified is large, the flow rate of circulating water drawn by control valve 2 increases. It is necessary to control the speed of the upper water distributor 5 to maintain stability under high water flow conditions, so as to avoid splashing the circulating water onto the exposed surface of the inner wall of tank 1. This ensures that the circulating water directly contacts the resin after flowing down without adhering to the wall, thus guaranteeing purification efficiency and preventing metal ions in the circulating water from remaining on the inner wall of tank 1 for a long time, resulting in impurities. When the upper water distributor 5 rotates, it drives the leakage hole 71 to rotate. As the leakage hole 71 rotates, its inner wall frequently rubs against the arc head 75, applying resistance to the rotation of the upper water distributor 5. Simultaneously, the centrifugal force generated by the rotation of the upper water distributor 5 causes the telescopic ring 74 to expand outwards. The greater the water flow, the faster the rotation speed of the upper water distributor 5, resulting in a greater centrifugal force and a larger outward expansion of the telescopic ring 74. After expanding outwards, the telescopic ring 74 squeezes the sliding frame 79, pushing it to move outwards. After the sliding frame 79 moves, it squeezes the rotating rod 78, causing the rotating rod 78 to rotate. After the rotating rod 78 rotates... Pushing the push plate 77 moves it, and after the push plate 77 moves, it squeezes the push spring 76, causing the push spring 76 to contract. The push spring 76 applies an initial support force to the surface of the arc head 75 between the push plate 77 and the arc head 75, causing friction between the arc head 75 and the leakage hole 71. When the push spring 76 is squeezed and contracted by the push plate 77, the thrust on the arc head 75 increases, increasing the friction between the arc head 75 and the leakage hole 71, which increases the resistance when the upper water distributor 5 rotates, limits the rotation speed of the upper water distributor 5, and prevents the upper water distributor 5 from rotating excessively and directly throwing the circulating water into the exposed inner wall of the tank 1.

[0027] Please see Figure 1 - Figure 9Based on the above embodiments, in another embodiment of the present invention, the protective device includes two elastic telescopic rods 81, which are respectively installed on the front and rear sides of the top of the upper water distributor 5. The rotation of the upper water distributor 5 drives the elastic telescopic rods 81 to rotate. A scraper 83 is installed on the outer wall of the free end of the elastic telescopic rod 81. The rotation of the elastic telescopic rod 81 drives the scraper 83 to rotate. The scraper 83 is in contact with the inner wall of the tank 1. After the scraper 83 rotates, it scrapes off the residual circulating water on the inner wall of the tank 1, thus preventing the circulating water from remaining on the inner wall of the tank 1 for a long time and forming solid crystals that are difficult to clean.

[0028] The outer wall of the rear elastic telescopic rod 81 is equipped with a protrusion, and the inner wall of the tank 1 is equipped with an arc rail 82 near the protrusion. The bottom of the free end of the elastic telescopic rod 81 is equipped with a wheel rim 84. Under the push of the protrusion by the inner wall of the arc rail 82, the free end of the elastic telescopic rod 81 moves downward, thereby improving the cleaning range and stripping effect of the scraper 83 on the wall-mounted circulating water.

[0029] The scraper 83 has a groove 85 on its surface. After the circulating water is scraped off by the scraper 83, it enters the groove 85 under inertia. A connecting rod 86 is installed on the outer wall of the fixed end of the elastic telescopic rod 81. A water collection tank 88 is installed at the bottom of the connecting rod 86. The residual circulating water flows into the bottom water collection tank 88 through the groove 85 for temporary storage. A pressure plate 87 is fixedly installed on the inner wall of the groove 85. When the scraper 83 moves upward each time, it drives the water collection tank 88 to move upward. The pressure plate 87 gradually enters the water collection tank 88 and squeezes the circulating water stored in the water collection tank 88. A spray pipe 89 is installed at the bottom of the water collection tank 88. The spray pipe 89 is connected to the inside of the water collection tank 88. The circulating water after being squeezed is sprayed out through the spray pipe 89. The spray pipe 89 is oriented towards the central axis of the tank body 1, so that the sprayed circulating water is away from the inner wall of the tank body 1 and directly sprinkles onto the surface of the resin pile. This ensures that the circulating water that is scraped off by the scraper 83 can directly enter the purification process and avoids re-attaching to the wall.

[0030] In this embodiment, although the friction force generated by the arc head 75 stabilizes the rotation speed of the upper water distributor 5, the circulating water sprayed from the upper water distributor 5 onto the resin surface is easily splashed onto the exposed inner wall of the tank 1 due to collision. The rotation of the upper water distributor 5 drives the elastic telescopic rod 81 to rotate, which in turn drives the scraper 83 to rotate. After the scraper 83 rotates, it scrapes off the residual circulating water on the inner wall of the tank 1, preventing the circulating water from remaining on the inner wall of the tank 1 for a long time and forming solid crystals that are difficult to clean. At the same time, the protrusion on the surface of one side of the elastic telescopic rod 81 enters the arc rail 82 after rotating with the elastic telescopic rod 81. Under the push of the inner wall of the arc rail 82, it drives the free end of the elastic telescopic rod 81 to move downward. When the protrusion slides out of the arc rail 82, it releases the restriction on the free end of the elastic telescopic rod 81 and bounces back upward, causing the free end of the elastic telescopic rod 81 to move up and down repeatedly during rotation, driving the scraper 83 to move frequently longitudinally, improving the cleaning range and peeling effect of the scraper 83 on the wall-mounted circulating water. As the scraper 83 continues to rotate, the wall-mounted circulating water is scraped off by the scraper 83 and enters the groove 85 under inertia. Then, it flows into the bottom water collection tank 88 for temporary storage. Each time the scraper 83 moves upward, it drives the water collection tank 88 to move upward. After the water collection tank 88 moves, it gradually approaches the pressure plate 87. As the pressure plate 87 gradually enters the water collection tank 88, it squeezes the circulating water stored in the water collection tank 88. The squeezed circulating water is sprayed out through the spray pipe 89. The spray pipe 89 is oriented towards the central axis of the tank body 1, so that the sprayed circulating water is away from the inner wall of the tank body 1 and directly sprinkles onto the surface of the resin pile. This ensures that the wall-mounted circulating water is directly purified after being scraped off by the scraper 83, and avoids re-attaching to the wall.

[0031] Please see Figure 1 - Figure 9 Based on the above embodiments, in another embodiment of the present invention, a front sleeve rod 91 is hinged to the front side of the inner wall of the wheel rim 84, and a rear sleeve rod 92 is sleeved to the rear side of the inner wall of the wheel rim 84. The front sleeve rod 91 and the rear sleeve rod 92 are sleeved to each other. After the wheel rim 84 rotates, it drives the front sleeve rod 91 and the rear sleeve rod 92 to rotate, pushing the resin at the raised part of the pit edge, so that the surface of the resin pile is restored to flatness. A stop rod 94 is installed on the inner wall of the tank 1, and a protruding rod 93 is installed on the top of the rear sleeve rod 92. After deflection, the rear sleeve rod 92 moves towards the front sleeve rod 91 under the pressure of the inner wall of the wheel rim 84. The front sleeve rod 91 and the rear sleeve rod 92 approach each other. A second torsion spring is provided between the front sleeve rod 91 and the wheel rim 84. The elastic force of the second torsion spring causes the front sleeve rod 91 to return to its original position.

[0032] Both the front sleeve rod 91 and the rear sleeve rod 92 are equipped with diagonal strips 95 and sliding plates 97 on their sides. The front sleeve rod 91 and the rear sleeve rod 92 approach each other, so that the bottom slope of the diagonal strips 95 on their respective surfaces presses against the sliding plate 97 on the other surface, pressing the sliding plate 97 downward and moving it. The sliding plate 97 is slidably installed on the sides of the front sleeve rod 91 and the rear sleeve rod 92. Several pointed plates 96 are installed at the bottom of the sliding plate 97. The pointed plates 96 reciprocate and extend, working in conjunction with the front sleeve rod 91 and the rear sleeve rod 92 to continuously push the surface of the resin pile, improving the loosening effect.

[0033] In this embodiment, the surface of the resin pile is damaged by the long-term impact of the circulating water flow, resulting in pits and depressions. Some of the resin at the bottom of these pits is too densely packed, making it difficult for the circulating water to penetrate naturally. The rotation of the elastic telescopic rod 81 drives the wheel rim 84 to rotate, which in turn drives the front sleeve rod 91 and the rear sleeve rod 92 to rotate, pushing the resin at the raised edges of the pits and restoring the surface of the resin pile to smooth. Simultaneously, as the rear sleeve rod 92 rotates with the wheel rim 84, it drives the convex rod 93 to rotate. During this rotation, the convex rod 93 contacts the stop rod 94. Under the limiting condition, the rear sleeve rod 92 deflects on the inner wall of the rim 84. After deflection, the rear sleeve rod 92 moves towards the front sleeve rod 91 under the pressure of the inner wall of the rim 84. The front sleeve rod 91 and the rear sleeve rod 92 approach each other, causing the bottom slope of their respective surface inclined strips 95 to press against the sliding plate 97 on the other surface, pushing the sliding plate 97 downward. After the sliding plate 97 moves, it drives the pointed plate 96 downward. After the pointed plate 96 extends, it follows the rotation of the rim 84 to shear the surface of the resin pile, loosening the surface resin, avoiding excessive resin accumulation, and ensuring that the internal gaps of the resin pile allow the circulating water to flow smoothly and stably for purification. Each time the free end of the elastic telescopic rod 81 moves downward, it drives the rim 84 downward, causing the convex rod 93 to release its contact with the stop rod 94. The front sleeve rod 91 and the rear sleeve rod 92 return to their original positions, causing the pointed plate 96 to reciprocate and extend. Together with the front sleeve rod 91 and the rear sleeve rod 92, they continuously push the surface of the resin pile, improving the loosening effect.

[0034] In the description of this specification, specific features, structures, materials, or characteristics may be combined in any suitable manner in one or more embodiments or examples.

[0035] The embodiments described in this specific implementation are preferred embodiments of this application and are not intended to limit the scope of protection of this application. Therefore, all equivalent changes made in accordance with the structure, shape and principle of this application should be covered within the scope of protection of this application.

Claims

1. A low-energy-consumption circulating water desalination device, characterized in that, include: The tank (1) and control valve (2) are provided. The control valve (2) is located on the top of the tank (1). The control valve (2) is connected to a pipeline group (3). A central pipe (4) is provided inside the tank (1). The central pipe (4) is connected to the control valve (2). An upper water distributor (5) is rotatably installed on the top of the central pipe (4). A lower water distributor (6) is fixedly installed on the bottom of the central pipe (4). A vortex spraying device, a protective device and a loosening device are also provided inside the tank (1). The vortex spraying device includes a fixing frame (72). The fixing frame (72) is fixedly installed on the outer wall of the central pipe (4). Several leakage holes (71) are opened on the outer wall of the upper water distributor (5).

2. The low-energy-consumption circulating water desalination device according to claim 1, characterized in that, The upper water distributor (5) is provided with a telescopic ring (74) on its outer wall. The telescopic ring (74) is composed of several outer rings and inner rings. The outer rings are slidably installed on the inner wall of the upper water distributor (5). The inner rings are sleeved between adjacent outer rings. Several support plates (73) are installed on the inner wall of the fixing frame (72). A sliding frame (79) is slidably installed on the outer wall of the support plate (73). Rotating rods (78) are rotatably installed on both sides of the top of the support plate (73). A push plate (77) is slidably installed on the inner wall of the support plate (73) near the rotating rod (78). An arc head (75) is slidably installed on the inner wall of the support plate (73) near the upper water distributor (5). A push spring (76) is provided between the arc head (75) and the push plate (77). The surface of the arc head (75) is in contact with the outer wall of the upper water distributor (5).

3. The low-energy-consumption circulating water desalination device according to claim 2, characterized in that, The leak holes (71) are arranged sequentially along the tangent of the cross-section of the water distributor, and a first torsion spring is provided between the rotating rod (78) and the support plate (73).

4. The low-energy-consumption circulating water desalination device according to claim 3, characterized in that, The protective device includes two elastic telescopic rods (81), which are installed on the front and rear sides of the top of the upper water distributor (5). A scraper (83) is installed on the outer wall of the free end of the elastic telescopic rod (81), and the scraper (83) is in contact with the inner wall of the tank (1).

5. The low-energy-consumption circulating water desalination device according to claim 4, characterized in that, The outer wall of the elastic telescopic rod (81) on the rear side is fitted with a protrusion, and the inner wall of the tank (1) near the protrusion is fitted with an arc rail (82). The bottom of the free end of the elastic telescopic rod (81) is fitted with a wheel rim (84).

6. The low-energy-consumption circulating water desalination device according to claim 5, characterized in that, The scraper (83) has a groove (85) on its surface. A connecting rod (86) is installed on the outer wall of the fixed end of the elastic telescopic rod (81). A water collection tank (88) is installed at the bottom of the connecting rod (86). A pressure plate (87) is fixedly installed on the inner wall of the groove (85). A spray pipe (89) is installed at the bottom of the water collection tank (88). The spray pipe (89) is connected to the inside of the water collection tank (88).

7. The low-energy-consumption circulating water desalination device according to claim 6, characterized in that, A front sleeve rod (91) is hinged to the front side of the inner wall of the wheel rim (84), and a rear sleeve rod (92) is sleeved to the rear side of the inner wall of the wheel rim (84). The front sleeve rod (91) and the rear sleeve rod (92) are sleeved to each other. A stop rod (94) is installed on the inner wall of the tank body (1). A protruding rod (93) is installed on the top of the rear sleeve rod (92). A second torsion spring is provided between the front sleeve rod (91) and the wheel rim (84).

8. The low-energy-consumption circulating water desalination device according to claim 7, characterized in that, The front sleeve rod (91) and the rear sleeve rod (92) are each equipped with a diagonal strip (95) and a sliding plate (97). The sliding plate (97) is slidably installed on the side of the front sleeve rod (91) and the rear sleeve rod (92). Several pointed plates (96) are installed at the bottom of the sliding plate (97).

Images