An in-line self-cleaning resin particle trap

Abstract

The utility model discloses an online self -cleaning resin particle catcher, including the catcher body, being equipped with the filter cartridge in the catcher body, the water inlet pipe mouth is equipped with one side of the catcher body, and the water inlet pipe mouth is connected with the water inlet line, and the water outlet pipe mouth and the blowdown pipe mouth are connected with respectively at the top and bottom of the catcher body, the water outlet pipe mouth is connected with the water outlet line, the blowdown pipe mouth is connected with the blowdown line, and the water inlet line is connected with the water outlet line with the branch, adopts the online self -cleaning resin particle catcher of the utility model, realizes the online cleaning function, avoids the broken resin and blocks the filter screen to cause the water production deficiency.

Description

Technical Field

[0001] This utility model belongs to the technical field of water treatment equipment. Specifically, this utility model relates to an online self-cleaning resin particle catcher. Background Technology

[0002] Sodium ion exchangers are common water softening devices widely used in circulating water systems, boiler water supply, and other applications. The ion exchange tank is filled with resin, where sodium ions exchange with calcium and magnesium ions in the water to form soluble sodium salts, preventing scale formation. However, during actual operation, the resin tank outlet has a filter screen, which can be damaged by erosion, allowing resin to enter the water usage points along the pipeline, causing water pollution and potentially resulting in substandard water quality. Therefore, a resin particle trap is added to the pipeline to prevent resin from entering subsequent water usage points, ensuring that the water usage points are not contaminated. Furthermore, the resin particle trap allows for continuous monitoring of upstream resin leaks and the condition of the filter screen.

[0003] Currently, most commonly used resin traps are cylindrical filter structures. Their working principle is that water flows through an internal precision filter screen (screen tube), where resin particles are trapped inside or on the surface of the screen. However, with increased operating time, the trapped resin particles gradually accumulate on the surface or inside the filter screen, leading to the following problems:

[0004] 1. Filter clogging: The accumulation of resin particles increases water flow resistance, causing an increase in system pressure difference, affecting water production and water quality, and in severe cases, may cause the equipment to malfunction.

[0005] 2. Difficult to clean: Cleaning traditional resin traps usually requires shutting down the system, depressurizing, disassembling the trap body, and then manually removing the filter screen for rinsing or replacement. This process is cumbersome, time-consuming, and labor-intensive, seriously affecting production efficiency.

[0006] 3. Downtime losses: The cleaning process must be carried out by stopping the machine. For continuously operating production lines or critical water-using links, downtime means huge economic losses.

[0007] 4. Safety risks: The disassembly and assembly process involves depressurization of the high-pressure system and disassembly of components, which pose certain safety risks, such as residual pressure and chemical contact.

[0008] 5. Low level of automation: It lacks effective online monitoring and automatic cleaning mechanisms, and relies on manual judgment and operation.

[0009] Utility model patent CN220758248U, published on April 12, 2024, discloses a medium-pressure resin trap, including a processing device. The processing device includes a tank with a sealing structure at the top. A filter device is installed inside the tank, including a filter element disposed within the tank. A cleaning device is installed outside the tank, comprising an air compressor, a first air pipe, and a first flange. The air compressor outlet is connected to the first air pipe, and the first air pipe is connected to a second air pipe via the first flange. The end of the second air pipe away from the first air pipe extends into the filter element and is fitted with several first nozzles. A cleaning device is also installed inside the tank. However, this medium-pressure resin trap does not solve the aforementioned technical problems. Utility Model Content

[0010] The purpose of this invention is to address the shortcomings of existing technologies by providing an online self-cleaning resin particle catcher that enables online cleaning and avoids insufficient water production caused by broken resin clogging the filter screen.

[0011] To achieve the above objectives, the technical solution adopted by this utility model is as follows:

[0012] The online self-cleaning resin particle trap includes a trap body with a filter cartridge inside. A water inlet is located on one side of the trap body and is connected to a water inlet pipe. A water outlet and a sewage outlet are connected to the top and bottom of the trap body, respectively. The water outlet is connected to a water outlet pipe, and the sewage outlet is connected to a sewage outlet pipe. A branch line connects the water inlet pipe and the water outlet pipe.

[0013] The inlet and outlet are located below and above the filter cartridge, respectively.

[0014] Valve I is installed on the inlet pipe, valve II is installed on the branch pipe, valve III is installed on the outlet pipe, and valve IV is installed on the sewage pipe.

[0015] The outer wall of the capture device is equipped with an ultrasonic transducer.

[0016] The trap body includes a lower shell and an upper shell. The top of the filter cylinder is provided with a connecting plate. The top of the lower shell and the bottom of the upper shell are respectively provided with a first mounting flange and a second mounting flange. The first mounting flange and the second mounting flange are connected by bolts and press the connecting plate together.

[0017] The lower housing is provided with a connecting pipe on the side opposite to the water inlet, and the end of the connecting pipe is provided with an observation window.

[0018] The bottom of the lower shell and the top of the upper shell are both tapered structures.

[0019] The lower housing is provided with a support at its bottom, and the support is provided with a base plate at its bottom.

[0020] This utility model has the following technical effects:

[0021] 1. Online cleaning, no downtime required: Through the rational design of the pipeline and the valve control of the pipeline opening and closing, the cleaning operation can be carried out under normal system conditions, completely avoiding system downtime caused by cleaning the catcher, greatly improving production continuity and efficiency, and reducing downtime losses.

[0022] 2. Easy to operate and highly automated: The valve is pneumatically controlled, adaptable to various usage scenarios, and is simple and quick to operate, significantly reducing the intensity of manual labor and skill requirements.

[0023] 3. Ensure safe and stable system operation: timely online cleaning prevents severe filter clogging, maintains system pressure differential within a reasonable range, ensures stable water quality and quantity, and extends the overall lifespan of the system.

[0024] 4. Reduced maintenance costs: Frequent disassembly and assembly work is avoided, reducing maintenance costs and the risk of component damage caused by disassembly and assembly.

[0025] 5. Low safety risk: No high-pressure disassembly is required while the system is running, reducing the safety risk to operators. Attached Figure Description

[0026] This manual includes the following figures, which illustrate the following:

[0027] Figure 1 This is a schematic diagram of the connection between the catcher and the pipeline of this utility model;

[0028] Figure 2 This is a schematic diagram of the installation of the filter cartridge of this utility model;

[0029] Figure 3 This is a schematic diagram of the installation of the observation window of this utility model.

[0030] The following are marked in the diagram: 1. Capture body; 2. Filter cylinder; 3. Inlet pipe; 4. Outlet pipe; 5. Sewage outlet; 6. Connecting pipe; 7. Inlet pipe; 8. Outlet pipe; 9. Sewage outlet; 10. Branch pipe; 11. Valve I; 12. Valve II; 13. Valve III; 14. Valve IV; 15. Ultrasonic transducer; 16. Lower housing; 17. Upper housing; 18. First mounting flange; 19. Second mounting flange; 20. Connecting plate; 21. Observation window; 22. Bracket; 23. Base plate. Detailed Implementation

[0031] The specific embodiments of this utility model will be further described in detail below with reference to the accompanying drawings, in order to help those skilled in the art to have a more complete, accurate and in-depth understanding of the inventive concept and technical solution of this invention, and to facilitate its implementation.

[0032] like Figure 1 As shown, this online self-cleaning resin particle catcher includes a catcher body 1, a filter cartridge 2 inside the catcher body 1, a water inlet 3 on one side of the catcher body 1, and a water inlet pipe 7 connected to the water inlet 3. A water outlet 4 and a sewage outlet 5 are connected to the top and bottom of the catcher body 1, respectively. The water outlet 4 is connected to a water outlet pipe 8, and the sewage outlet 5 is connected to a sewage outlet pipe 9. A branch pipe 10 connects the water inlet pipe 7 and the water outlet pipe 8. By setting the branch pipe 10, the water inlet pipe 7 is directly connected to the water outlet pipe 8, changing the water flow path and realizing the backwashing process of the filter cartridge 2. Cleaning can be performed while the system is running without stopping the machine, eliminating disassembly and assembly work, reducing maintenance costs and operational safety risks.

[0033] like Figure 1 As shown, the inlet 3 and outlet 4 are located below and above the filter cartridge 2, respectively. Arranging the inlet and outlet water channels in this structure, with water flowing from low inlet to high outlet, improves the filtration effect during normal operation and the sewage discharge efficiency during online cleaning. In normal operation, reducing the flow rate allows for full contact between the resin particles and the filtration area, enhancing the filtration effect. During cleaning, the water flows from high inlet to low outlet, utilizing gravity for sewage discharge and improving the sewage discharge efficiency.

[0034] like Figure 1 As shown, valve I11 is installed on the inlet pipe 7, valve II12 is installed on the branch pipe 10, valve III13 is installed on the outlet pipe 8, and valve IV14 is installed on the sewage pipe 9. Valve I11 is located between the lower housing 16 and the connection end of the branch pipe 10 on the inlet pipe 7, and the connection end of the branch pipe 10 on the outlet pipe 8 is located between the upper housing 17 and valve III13, ensuring that the water flow during the backwashing process is discharged from top to bottom when valves I11 and III13 are closed. By controlling the opening and closing of the above four valves, three working states can be met: normal use, cleaning, and no use. The opening and closing of the valves changes the water flow direction, realizing the backwashing function. At the same time, the ultrasonic transducer 15 is automatically activated during backwashing.

[0035] like Figure 2As shown, an ultrasonic transducer 15 is installed on the outer wall of the trap body 1. The principle of the ultrasonic transducer 15: The ultrasonic transducer 15 converts the acoustic energy of the ultrasonic frequency source into mechanical vibration, which is then radiated into the cleaning fluid inside the casing. Due to the ultrasonic radiation, microbubbles in the liquid inside the cylinder can maintain vibration under the action of the sound waves, disrupting the adsorption between resin particles and the filter screen surface of the filter cylinder 2, causing fatigue damage and peeling of the resin particles. During backwashing, the ultrasonic transducer 15 is automatically activated to reduce the retention of resin particles on the filter screen of the filter cylinder 2, and the resin accumulated on the filter screen of the filter cylinder 2 is discharged along the drain pipe, ensuring stable filtration performance of the filter cylinder 2. Filter cylinder 2

[0036] like Figure 1 As shown, the filter body 1 includes a lower housing 16 and an upper housing 17. A connecting plate 20 is provided at the top of the filter cartridge 2. A first mounting flange 18 and a second mounting flange 19 are respectively provided at the top of the lower housing 16 and the bottom of the upper housing 17. The first mounting flange 18 and the second mounting flange 19 are connected by bolts and press the connecting plate 20 together. The lower housing 16 and the upper housing 17 are assembled into one unit by the two mounting flanges, and the pressing of the connecting plate 20 makes the filter cartridge 2 stable and facilitates the installation and maintenance of the filter cartridge 2.

[0037] like Figure 1 and Figure 3 As shown, a connecting pipe port 6 is provided on the lower housing 16 on the opposite side of the water inlet 3, and an observation window 21 is provided at the end of the connecting pipe port 6. A pipe port is provided on the side of the resin retention area at the bottom of the trap body 1 as an observation port. The observation window 21 is a flat glass plate, which is pressed and fixed by two flanges installed on the connecting pipe port 6. It is possible to visually inspect whether there is resin retention inside and the cleaning status of the filter screen of the filter cartridge 2.

[0038] like Figure 1 As shown, both the bottom of the lower shell 16 and the top of the upper shell 17 are tapered structures. This structure reduces the volume of the pipe opening, facilitates flange connection, and promotes water flow, reducing redundant accumulation of pollutants during sewage discharge.

[0039] like Figure 1 As shown, the lower housing 16 has a bracket 22 at its bottom, and a base plate 23 at the bottom of the bracket 22. Multiple brackets 22 provide stable support for the lower housing 16, while the base plate 23 securely mounts the overall structure.

[0040] Filter cartridge 2 is made of wedge wire, and the filtration accuracy can be selected according to actual needs. Valves on each pipeline are pneumatically controlled valves, controlled by a PLC control system. Pipeline on / off control is achieved based on manual commands, corresponding to three working modes: normal operation, online cleaning of the filter, and no filter use, as shown in the table below. Alternatively, differential pressure detectors can be added before and after the filter to achieve fully automatic operation using differential pressure and time signals: when the differential pressure is less than the set value, it operates in normal mode; when the differential pressure reaches the set value, the program automatically switches to online cleaning mode; and after the set cleaning time, it automatically switches back to normal operation mode.

[0041] Normal operation Open closure Open closure closure Online cleaning closure Open closure Open Open Do not use closure Open Open closure closure

[0042] Table: Three Working Modes of Resin Capturers

[0043] The beneficial effects of this online self-cleaning resin particle trap are as follows:

[0044] 1. Online cleaning, no downtime required: Through the rational design of the pipeline and the valve control of the pipeline opening and closing, the cleaning operation can be carried out under normal system conditions, completely avoiding system downtime caused by cleaning the catcher, greatly improving production continuity and efficiency, and reducing downtime losses.

[0045] 2. Easy to operate and highly automated: The valve is pneumatically controlled, adaptable to various usage scenarios, and is simple and quick to operate, significantly reducing the intensity of manual labor and skill requirements.

[0046] 3. Ensure safe and stable system operation: timely online cleaning prevents severe filter clogging, maintains system pressure differential within a reasonable range, ensures stable water quality and quantity, and extends the overall lifespan of the system.

[0047] 4. Reduced maintenance costs: Frequent disassembly and assembly work is avoided, reducing maintenance costs and the risk of component damage caused by disassembly and assembly.

[0048] 5. Low safety risk: No high-pressure disassembly is required while the system is running, reducing the safety risk to operators.

[0049] The present invention has been described above by way of example with reference to the accompanying drawings. Obviously, the specific implementation of the present invention is not limited to the above-described manner. Any non-substantial improvements made using the inventive concept and technical solution of the present invention; or the direct application of the inventive concept and technical solution to other situations without modification, are all within the protection scope of the present invention.

Claims

1. An online self-cleaning resin particle trap, characterized in that: Includes a trap body (1), inside which is a filter cylinder (2), and a water inlet (3) on one side of the trap body (1), which is connected to a water inlet pipe (7). The top and bottom ends of the trap body (1) are respectively connected to a water outlet (4) and a sewage outlet (5). The water outlet (4) is connected to a water outlet pipe (8), and the sewage outlet (5) is connected to a sewage outlet pipe (9). The water inlet pipe (7) and the water outlet pipe (8) are connected to a branch pipe (10).

2. The online self-cleaning resin particle trap according to claim 1, characterized in that: The inlet (3) and outlet (4) are located below and above the filter cylinder (2), respectively.

3. The online self-cleaning resin particle trap according to claim 2, characterized in that: The inlet pipe (7) is equipped with valve I (11), the branch pipe (10) is equipped with valve II (12), the outlet pipe (8) is equipped with valve III (13), and the sewage pipe (9) is equipped with valve IV (14).

4. The online self-cleaning resin particle trap according to claim 3, characterized in that: The outer wall of the capture device body (1) is provided with an ultrasonic transducer (15).

5. The online self-cleaning resin particle trap according to any one of claims 1-4, characterized in that: The trap body (1) includes a lower shell (16) and an upper shell (17). The filter cylinder (2) is provided with a connecting plate (20) at the top. The top of the lower shell (16) and the bottom of the upper shell (17) are respectively provided with a first mounting flange (18) and a second mounting flange (19). The first mounting flange (18) and the second mounting flange (19) are connected by bolts and press the connecting plate (20) together.

6. The online self-cleaning resin particle trap according to claim 5, characterized in that: The lower housing (16) is provided with a connecting pipe port (6) on the opposite side of the water inlet (3), and the end of the connecting pipe port (6) is provided with an observation window (21).

7. The online self-cleaning resin particle trap according to claim 6, characterized in that: The bottom of the lower shell (16) and the top of the upper shell (17) are both conical structures.

8. The online self-cleaning resin particle trap according to claim 7, characterized in that: The lower housing (16) is provided with a bracket (22) at the bottom, and the bracket (22) is provided with a base plate (23) at the bottom.

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