Desalination water ultrafiltration system with hydraulic backwashing function

Abstract

This utility model discloses a demineralized water ultrafiltration system with hydraulic backwashing function, relating to the field of water treatment technology. It solves the problems of poor performance and low backwashing efficiency in existing devices by adopting the following solution: An adsorption tank is fixedly installed on the left side of the raw water tank. In this demineralized water ultrafiltration system with hydraulic backwashing function, water first enters the adsorption tank via a variable frequency pump through the adsorption tank and adsorption plates. Three sets of adsorption plates pre-treat and adsorb large particles of sand and other impurities in the water, ensuring the quantity and quality of ultrafiltration membrane production and improving the performance. Simultaneously, through the arrangement of telescopic cylinders, sealing plates, and connecting pipes, multiple telescopic cylinders can simultaneously drive the fixed pipe and sealing plate upwards, thereby blocking the inlet of ultrafiltration tube A. Water in the product water tank enters the ultrafiltration cartridge through the outlet of ultrafiltration tube B for backwashing, and then is discharged through the connecting pipe and drain pipe B, improving backwashing efficiency and ensuring product water efficiency.

Description

Technical Field

[0001] This utility model relates to the field of water treatment technology, specifically to a demineralized water ultrafiltration system with hydraulic backwashing function. Background Technology

[0002] In the smelting production process, a large amount of cooling circulating water is required to maintain the operation of smelting equipment and power equipment. After use, this cooling circulating water is usually discharged into a sewage treatment plant for purification treatment to remove solid suspended solids, colloids, inorganic salts, organic matter and anions and cations, etc., and then demineralized water is obtained for recycling.

[0003] A search revealed that patent application CN220684783U discloses a demineralized water ultrafiltration system with hydraulic backwashing function, comprising a raw water tank and a product water tank. The raw water tank is equipped with an inlet pipe and an inlet pump. Several ultrafiltration membrane modules are evenly distributed around the circumference between the raw water tank and the product water tank. A hollow tube is rotatably sealed at the bottom of the raw water tank. The upper end of the hollow tube extends into the raw water tank and is connected to a wastewater tank, while the lower end extends out of the raw water tank and is connected to an adjusting motor. This allows for continuous production, has a simple process, and features hydraulic backwashing function.

[0004] However, since the water to be treated enters the ultrafiltration membrane module directly for filtration, the water lacks a pretreatment system. Large particles in the water can easily clog the ultrafiltration membrane module, thus affecting the amount and quality of water produced by the ultrafiltration membrane and resulting in poor performance. At the same time, due to the setting of the regulating motor, the clogging head can only backwash one set of ultrafiltration modules at a time, resulting in low backwashing efficiency and affecting the efficiency of water production.

[0005] Therefore, we propose a demineralized water ultrafiltration system with hydraulic backwashing function. Utility Model Content

[0006] To address the shortcomings of existing technologies, this invention provides a demineralized water ultrafiltration system with hydraulic backwashing function, which solves the problems of poor performance and low backwashing efficiency of existing devices.

[0007] To achieve the above objectives, this utility model is implemented through the following technical solution: a demineralized water ultrafiltration system with hydraulic backwashing function, including a raw water tank, wherein four sets of support legs in opposite positions are fixedly installed on the bottom surface of the raw water tank; An adsorption tank is fixedly installed on the left side of the raw water tank, and an inlet pipe is fixedly installed on the left side of the adsorption tank. A variable frequency water pump of the same specification is installed on the outer wall of the inlet pipe. A sealing cover of the same specification is installed on the top surface of the adsorption tank by bolts. Three sets of limiting frames with opposite positions are installed inside the adsorption tank. Adsorption plates of the same specification are slidably connected inside the limiting frames. The filter holes on the adsorption plates decrease in size from left to right. Five sets of ultrafiltration tubes A, positioned opposite each other and connected, are fixedly installed on the top surface of the raw water tank. An ultrafiltration cartridge is fixedly installed on the top surface of each ultrafiltration tube A, and an ultrafiltration membrane assembly is installed inside each ultrafiltration cartridge. An ultrafiltration tube B, connected to the ultrafiltration cartridge, is fixedly installed on the top surface of each ultrafiltration tube B, and a product water tank, connected to the product water tank, is fixedly installed on the left side of the product water tank. A solenoid valve A is installed on the outer wall of the drain pipe A. Five sets of telescopic cylinders, positioned opposite each other, are fixedly installed on the bottom surface of the raw water tank. A push rod is mounted on the output end of the cylinder. A connecting plate is fixedly installed on the top of the push rod. A fixed pipe is fixedly installed on the top surface of the connecting plate. A sealing plate of the same specification is fixedly installed on the top surface of the fixed pipe. A sealing cone is fixedly installed on the top surface of the sealing plate. A connecting flow hole is opened on the top surface of the sealing cone. A connecting pipe is fixedly installed on the outer wall of the fixed pipe. A drain pipe B connected to the connecting pipe is fixedly installed on the bottom surface of the raw water tank. A solenoid valve B is mounted on the outer wall of the drain pipe B.

[0008] Preferably, the inner wall of the ultrafiltration tube B is equipped with a chlorine concentration sensor of a suitable specification, so that the residual chlorine in the produced water can be monitored and the concentration of chlorine can be monitored at all times.

[0009] Preferably, the outer wall at the top of the ultrafiltration cartridge is equipped with a feed port of a suitable size, so that PAC reagent can be added into the ultrafiltration cartridge to improve the backwashing effect.

[0010] Preferably, a control processor is installed on the front side of the raw water tank, and a display screen is installed on the top surface of the control processor, which facilitates the control of each component.

[0011] Preferably, the sealing plate and the sealing cone are supported by rubber material, which can improve the sealing performance of the sealing plate and the sealing cone and improve the backwashing effect.

[0012] Preferably, the connecting pipe is a soft water pipe, which facilitates the telescopic cylinder to move the fixed pipe up and down.

[0013] 1. This demineralized water ultrafiltration system with hydraulic backwashing function, through the setting of adsorption tank and adsorption plates, water first enters the adsorption tank through a variable frequency water pump. Three sets of adsorption plates pre-treat and adsorb large particles of sand and other impurities in the water, reducing the amount of impurities adsorbed by the ultrafiltration membrane module, increasing its service life, ensuring the quantity and quality of water produced by the ultrafiltration membrane, and improving the use effect.

[0014] 2. Simultaneously, through the setting of telescopic cylinders, sealing plates, and connecting pipes, multiple sets of telescopic cylinders can simultaneously drive the fixed pipe and sealing plate to move upward, thereby blocking the inlet of ultrafiltration tube A. The water in the product water tank enters the ultrafiltration cartridge through the outlet of ultrafiltration tube B for backwashing, and then is discharged through the connecting pipe and drain pipe B, improving the efficiency of backwashing and ensuring the efficiency of water production. Attached Figure Description

[0015] Figure 1 This is a schematic diagram of the overall structure of this utility model; Figure 2 This is a schematic diagram of the structure of the raw water tank of this utility model; Figure 3 This is a schematic diagram of the adsorption box of this utility model; Figure 4 This is a schematic diagram of the sealing plate of this utility model.

[0016] In the diagram: 1. Raw water tank; 2. Support leg; 3. Adsorption box; 4. Inlet pipe; 5. Variable frequency water pump; 6. Sealing cover; 7. Adsorption plate; 8. Limiting frame; 9. Ultrafiltration tube A; 10. Ultrafiltration cartridge; 11. Ultrafiltration tube B; 12. Product water tank; 13. Drain pipe A; 14. Solenoid valve A; 15. Telescopic cylinder; 16. Push rod; 17. Connecting plate; 18. Fixing pipe; 19. Sealing plate; 20. Sealing cone; 21. Flow hole; 22. Connecting pipe; 23. Drain pipe B; 24. Solenoid valve B; 25. Chlorine concentration sensor; 26. Inlet; 27. Control processor; 28. Display screen. Detailed Implementation

[0017] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0018] Example 1: like Figure 1-4As shown: An adsorption tank 3 is fixedly installed on the left side of the raw water tank 1. An inlet pipe 4 is fixedly installed on the left side of the adsorption tank 3. A variable frequency water pump 5 of the same specification is installed on the outer wall of the inlet pipe 4. A sealing cover 6 of the same specification is installed on the top surface of the adsorption tank 3 by bolts. Three sets of limiting frames 8 with opposite positions are installed inside the adsorption tank 3. Adsorption plates 7 of the same specification are slidably connected inside the limiting frames 8. The filter holes on the adsorption plates 7 decrease in size from left to right. Through the setup of the adsorption tank 3 and the adsorption plates 7, water first enters the adsorption tank 3 through the variable frequency water pump 5. The three sets of adsorption plates 7 pre-treat and adsorb large particles of sand and other impurities in the water, reducing the amount of impurities adsorbed by the ultrafiltration membrane module, increasing its service life, ensuring the quantity and quality of water produced by the ultrafiltration membrane, and improving the use effect.

[0019] Example 2: like Figure 2-4 As shown: Five sets of ultrafiltration tubes A9 are fixedly installed on the top surface of the raw water tank 1, and are positioned opposite each other and connected. An ultrafiltration cartridge 10 is fixedly installed on the top surface of the ultrafiltration tube A9. An ultrafiltration membrane module is installed inside the ultrafiltration cartridge 10. An ultrafiltration tube B11 is fixedly installed on the top surface of the ultrafiltration cartridge 10 and is connected to the ultrafiltration tube B11. A product water tank 12 is fixedly installed on the top surface of the ultrafiltration tube B11. A drain pipe A13 is installed on the left side of the product water tank 12. A solenoid valve A14 is installed on the outer wall of the drain pipe A13. Five sets of telescopic cylinders 15 are fixedly installed on the bottom surface of the raw water tank 1, and a push rod 16 is installed on the output end of the telescopic cylinder 15. A connecting plate 17 is fixedly installed on the top of the push rod 16. A fixing pipe 18 is fixedly installed on the top surface of the connecting plate 17. A sealing device of appropriate specifications is fixedly installed on the top surface of the fixing pipe 18. A sealing cone 20 is fixedly installed on the top surface of the sealing plate 19. A connecting flow hole 21 is opened on the top surface of the sealing cone 20. A connecting pipe 22 is fixedly installed on the outer wall of the fixed pipe 18. A drain pipe B23 connected to the connecting pipe 22 is fixedly installed on the bottom surface of the raw water tank 1. A solenoid valve B24 is installed on the outer wall of the drain pipe B23. Through the setting of telescopic cylinder 15, sealing plate 19 and connecting pipe 22, multiple sets of telescopic cylinders 15 can simultaneously drive the fixed pipe 18 and sealing plate 19 to move upward, thereby blocking the inlet of the ultrafiltration tube A9. The water in the product water tank 12 enters the ultrafiltration cartridge 10 through the outlet of the ultrafiltration tube B11 for backwashing, and then is discharged through the connecting pipe 22 and drain pipe B23, improving the efficiency of backwashing and ensuring the efficiency of water production.

[0020] Example 3: like Figure 2-3 As shown: The inner wall of the ultrafiltration tube B11 is equipped with a chlorine concentration sensor 25 of the same specification, which can monitor the residual chlorine in the produced water and monitor the chlorine concentration at all times.

[0021] The working principle and usage process of this utility model are as follows: When the device needs to work, water first enters the adsorption tank 3 through the variable frequency water pump 5. The three sets of adsorption plates 7 pre-treat and adsorb large particles of sand and other impurities in the water, reducing the amount of impurities adsorbed by the ultrafiltration membrane module, increasing its service life, ensuring the quantity and quality of water produced by the ultrafiltration membrane, and improving the usage effect. Multiple sets of telescopic cylinders 15 can simultaneously drive the fixed pipe 18 and the sealing plate 19 to move upward, thereby blocking the inlet of the ultrafiltration tube A9. The water in the product water tank 12 enters the ultrafiltration cartridge 10 through the outlet of the ultrafiltration tube B11 for backwashing, and then is discharged through the connecting pipe 22 and the drain pipe B23, improving the efficiency of backwashing and ensuring the efficiency of water production.

[0022] The foregoing has shown and described the basic principles, main features, and advantages of this utility model. It will be apparent to those skilled in the art that this utility model is not limited to the details of the exemplary embodiments described above, and that it can be implemented in other specific forms without departing from the spirit or basic characteristics of this utility model. Therefore, the embodiments should be considered exemplary and non-limiting in all respects. The scope of this utility model is defined by the appended claims rather than the foregoing description, and thus all variations falling within the meaning and scope of equivalents of the claims are intended to be included within this utility model. No reference numerals in the claims should be construed as limiting the scope of the claims.

[0023] Furthermore, it should be understood that although this specification describes embodiments, not every embodiment contains only one independent technical solution. This narrative style is merely for clarity. Those skilled in the art should consider the specification as a whole, and the technical solutions in each embodiment can also be appropriately combined to form other embodiments that can be understood by those skilled in the art.

Claims

1. A demineralized water ultrafiltration system with hydraulic backwashing function, comprising a raw water tank (1), wherein four sets of support legs (2) are fixedly installed on the bottom surface of the raw water tank (1). Its features are: An adsorption tank (3) is fixedly installed on the left side of the raw water tank (1). An inlet pipe (4) is fixedly installed on the left side of the adsorption tank (3). A variable frequency water pump (5) of the same specification is installed on the outer wall of the inlet pipe (4). A sealing cover (6) of the same specification is installed on the top surface of the adsorption tank (3) by bolts. Three sets of limiting frames (8) with opposite positions are installed inside the adsorption tank (3). An adsorption plate (7) of the same specification is slidably connected inside the limiting frame (8). The filter holes on the adsorption plate (7) decrease in size from left to right. Five sets of ultrafiltration tubes A (9) are fixedly installed on the top surface of the raw water tank (1), and ultrafiltration cylinders (10) are fixedly installed on the top surface of the ultrafiltration tubes A (9). An ultrafiltration membrane assembly is installed inside the ultrafiltration cylinder (10). A connected ultrafiltration tube B (11) is fixedly installed on the top surface of the ultrafiltration cylinder (10). A connected product water tank (12) is fixedly installed on the top surface of the ultrafiltration tube B (11). A drain pipe A (13) is installed on the left side of the product water tank (12). A solenoid valve A (14) is installed on the outer wall of the drain pipe A (13). Five sets of telescopic cylinders (15) are fixedly installed on the bottom surface of the raw water tank (1). The output end of the telescopic cylinder (15) The upper part is equipped with a push rod (16), the top of the push rod (16) is fixedly installed with a connecting plate (17), the top surface of the connecting plate (17) is fixedly installed with a fixed pipe (18), the top surface of the fixed pipe (18) is fixedly installed with a sealing plate (19) of the same specification, the top surface of the sealing plate (19) is fixedly installed with a sealing cone (20), the top surface of the sealing cone (20) is provided with a connecting flow hole (21), the outer wall of the fixed pipe (18) is fixedly installed with a connecting pipe (22), the bottom surface of the raw water tank (1) is fixedly installed with a drain pipe B (23) connected to the connecting pipe (22), and the outer wall of the drain pipe B (23) is equipped with a solenoid valve B (24).

2. The demineralized water ultrafiltration system with hydraulic backwashing function according to claim 1, characterized in that: The inner wall of the ultrafiltration tube B (11) is equipped with a chlorine concentration sensor (25) of the same specification.

3. The demineralized water ultrafiltration system with hydraulic backwashing function according to claim 1, characterized in that: The outer wall at the top of the ultrafiltration cartridge (10) is fitted with a feed inlet (26) of the appropriate size.

4. The demineralized water ultrafiltration system with hydraulic backwashing function according to claim 1, characterized in that: The front side of the raw water tank (1) is equipped with a control processor (27), and the top surface of the control processor (27) is equipped with a display screen (28).

5. The demineralized water ultrafiltration system with hydraulic backwashing function according to claim 1, characterized in that: The sealing plate (19) and sealing cone (20) are supported by rubber material.

6. The demineralized water ultrafiltration system with hydraulic backwashing function according to claim 1, characterized in that: The connecting pipe (22) is a soft water pipe.

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