Secondary filtration pure water regeneration system

Abstract

The utility model discloses a two-stage filtration pure water regeneration system in the field of pure water regeneration, which is arranged on the periphery of a production system and comprises a water tank I, a water tank II and a water tank III, the water tank I and the water tank II are connected through a pipeline I, the water tank II and the water tank III are connected through a pipeline II, a second-stage filter I is arranged on the pipeline I, and a second-stage filter II is arranged on the pipeline II. A second-stage filter II is arranged on the pipeline II; a water inlet of the first water tank is connected with a water inlet pipe, and the other end of the water inlet pipe is connected with a drainage tank of the production system. The secondary filtration pure water regeneration system provided by the utility model is arranged on the periphery of a production system, purifies wastewater generated by the production system, reuses the wastewater, reduces the cost and is convenient to use, and the wastewater generated by the production system is filtered by the secondary filter twice through the pipeline arranged between the water tanks, so that the wastewater is recycled. And sterilizing by a pipeline type sterilizing lamp to be used by a production system.

Description

A two-stage filtration pure water regeneration system Technical Field

[0001] This utility model relates to the field of pure water regeneration, and in particular to a two-stage filtration pure water regeneration system. Background Technology

[0002] In the automated polarizer lamination line, a cleaning machine uses pure water, brushes, and related grinding mechanisms to clean the glass substrate (hereinafter referred to as Panel). The pure water is supplied through pure water pipelines at the factory level and is introduced into the water tank at the equipment level for temporary storage and use through program control. The water after the grinding and cleaning process (hereinafter referred to as wastewater) is first collected in the wastewater tank at the equipment level, and then discharged to the panel factory's factory level according to the wastewater grade. The factory level will then treat the wastewater before supplying it to the factory's equipment level.

[0003] Since the water purifier is crucial for ensuring process yield, its water supply relies entirely on the plant management unit for purification and supply. However, the plant management unit's complete pure water system is quite complex and occupies a large area. It includes various methods such as UF (ultrafiltration), EDI (two-stage reverse osmosis), EDI (electrodialysis), MBP (mearing resin), and MF (absolute filter) to meet process standards (including requirements for conductivity, TOC, particle count, and bacterial content). Even the pre-storage tank for the water supply needs to be sealed with nitrogen for preservation. Therefore, the construction and operation of this complete plant water treatment system leads to a significant increase in water costs, ultimately compressing the product's pricing competitiveness. Summary of the Invention

[0004] The purpose of this invention is to provide a two-stage filtration pure water regeneration system, which is installed on the periphery of the production system to purify the wastewater generated by the production system, allowing the wastewater to be reused, reducing costs and making it convenient to use.

[0005] To solve the above technical problems, the following technical solution is adopted:

[0006] This utility model provides a two-stage filtration pure water regeneration system. The pure water regeneration system is set on the periphery of the production system and includes a water tank 1, a water tank 2 and a water tank 3. The water tank 1 and the water tank 2 are connected by a pipe 1, and the water tank 2 and the water tank 3 are connected by a pipe 2. A two-stage filter 1 is installed on the pipe 1 and a two-stage filter 2 is installed on the pipe 2.

[0007] The inlet of the water tank is connected to the inlet pipe, and the other end of the inlet pipe is connected to the drain tank of the production system.

[0008] The outlet of the water tank three is connected to a water supply pipe, and the other end of the water supply pipe is connected to the water inlet tank of the production system. A pipeline germicidal lamp is installed on the water supply pipe.

[0009] It also includes a monitoring component, which is used to monitor the system status and abnormal conditions.

[0010] Optionally, it also includes a base plate, a first lifting frame, a second lifting frame, a first bracket, and a second bracket, wherein the first water tank, the first lifting frame, the second bracket, and the second lifting frame are sequentially installed on the base plate;

[0011] The bracket one is installed on the base plate and on the outer periphery of the water tank one. The secondary filter one is installed on the bracket one. The water tank two is installed on the lifting frame one. The water tank three is installed on the lifting frame two. The bracket two is used to install the secondary filter two.

[0012] Optionally, the second bracket is equipped with a manual control panel for controlling the switches of various valves and water pumps within the system.

[0013] Optionally, the monitoring components include a flow meter, a differential pressure gauge, a water quality detector, a leakage sensor, and a level sensor, and the flow meter, differential pressure gauge, water quality detector, leakage sensor, and level sensor are connected to a PLC;

[0014] The flow meter is installed on the water supply pipe, and differential pressure gauges are installed on both pipe one and pipe two. The water quality detector is installed on water tank three to detect the water quality in water tank three.

[0015] The liquid level sensor is installed on each of the three water tanks, and the leakage sensor is installed at the bottom of each of them.

[0016] Optionally, both pipe one and pipe two include a multi-channel structure, and each channel in the multi-channel structure is provided with a secondary filter one or a secondary filter two.

[0017] Optionally, the secondary filter includes two filters for filtering particles of different sizes, and is positioned before and after the pipeline, with the filters mounted on a support.

[0018] Optionally, a water pump is installed on the first pipe, a water pump is installed on the second pipe, a water pump is installed on the water supply pipe, and several valves are installed on the first pipe, the second pipe, the water supply pipe, and the water inlet pipe.

[0019] Optionally, it also includes a return pipe, one end of which is connected to the drain tank, and the other end is connected to the first water tank, the second water tank, and the third water tank via three branch pipes respectively.

[0020] Optionally, a water pump is installed on the first pipe, a water pump is installed on the second pipe, a water pump is installed on the water supply pipe, and an inlet pump is installed on the inlet pipe.

[0021] Optionally, a bracket three is also provided on one side of the water tank three, and an electrical control cabinet connected to the electrical equipment in the system is provided on the bracket three, and the pipeline germicidal lamp is installed on the bracket three.

[0022] Compared with the prior art, the beneficial effects achieved by this utility model are as follows:

[0023] 1. The two-stage filtration pure water regeneration system provided by this utility model is set on the periphery of the production system to purify the wastewater generated by the production system. The wastewater can be reused, reducing costs and making it convenient to use. By setting up pipes between water tanks and installing two-stage filters on the pipes, the wastewater generated by the production system is filtered through two two-stage filters and then sterilized by pipeline germicidal lamps before being supplied to the production system. The monitoring component monitors the status within the system to ensure that the pure water supplied to the production system meets the specified requirements.

[0024] 2. The pipe connecting the water tank in the system provided by this utility model includes a three-channel structure. Water is filtered separately through each channel of the three-channel structure, which allows maintenance to be carried out without affecting the use during maintenance. Attached Figure Description

[0025] Figure 1 is a top view of the pure water regeneration system provided in an embodiment of the present invention.

[0026] Figure 2 is a side view of the pure water regeneration system provided in an embodiment of the present invention.

[0027] Figure 3 is a schematic diagram of the overall structure of the pure water regeneration system provided in an embodiment of this utility model.

[0028] Figure 4 is a schematic diagram of the overall structure of the pure water regeneration system provided in this embodiment of the present invention.

[0029] Figure 5 is a partial structural schematic diagram of the pure water regeneration system provided in an embodiment of this utility model.

[0030] Marker explanation:

[0031] 1. Water Tank 1; 2. Water Tank 2; 3. Water Tank 3; 4. Pipe 1; 41. Water Tank 1 Outlet Pipe; 42. Water Tank 2 Inlet Pipe; 5. Pipe 2; 51. Water Tank 2 Outlet Pipe; 52. Water Tank 3 Inlet Pipe; 6. Secondary Filter 1; 7. Secondary Filter 2; 8. Pipe-type Germicidal Lamp; 9. First Filter; 10. Second Filter; 11. Water Pump 1; 12. Water Pump 2; 13. Water Pump 3; 14. Inlet Pipe ; 15. Water supply pipe; 16. Return pipe; 17. First pipe; 18. Second pipe; 19. Third pipe; 20. Valve; 21. Base plate; 22. Elevation frame one; 23. Elevation frame two; 24. Support one; 25. Support two; 26. Support three; 27. Pneumatic valve; 28. Water quality tester; 29. ​​Electrical control cabinet; 30. Manual operation panel; 31. Branch pipe one; 32. Branch pipe two; 33. Branch pipe three. Detailed Implementation

[0032] The technical solutions of the present invention 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 invention, and not all embodiments. The following description of at least one exemplary embodiment is merely illustrative and is in no way intended to limit the present invention or its application or use.

[0033] In the description of this utility model, it should be understood that the terms "center," "longitudinal," "lateral," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," and "outer," etc., indicating orientation or positional relationships, are based on the orientation or positional relationships shown in the accompanying drawings and are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this utility model. Furthermore, the terms "first," "second," etc., are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of indicated technical features. Thus, features defined with "first," "second," etc., may explicitly or implicitly include one or more of that feature. In the description of this utility model, unless otherwise stated, "a plurality of" means two or more. In the description of this utility model, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "joining" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances. Example 1

[0034] This embodiment provides a two-stage filtration pure water regeneration system. The pure water regeneration system is used to purify and reuse wastewater discharged from the production system, and is located on the periphery of the production system.

[0035] The production system in this embodiment is a polarizer production system.

[0036] As shown in Figures 1 and 3, the pure water regeneration system includes a water tank 1, a water tank 2, and a water tank 3. Water tank 1 and water tank 2 are connected by a pipe 4, and water tank 2 and water tank 3 are connected by a pipe 5. Both pipe 4 and pipe 5 have water pumps and secondary filters. The secondary filters include a secondary filter 6 installed on pipe 4 and a secondary filter 7 installed on pipe 5.

[0037] During the process of water being pumped from water tank 1 to water tank 2 by the water pump on pipe 1 4, the water enters water tank 2 after being filtered by the secondary filter 1 6 on pipe 1 4; during the process of water being pumped from water tank 2 2 to water tank 3 by the water pump on pipe 2 5, the water enters water tank 3 after being filtered by the secondary filter 2 7 on pipe 2 5.

[0038] The outlet of water tank 3 is connected to water supply pipe 15. Water supply pipe 15 is equipped with a water pump and a pipeline germicidal lamp 8. The other end of water supply pipe 15 is connected to the inlet water tank of the production system. During the process of water pumping water from water tank 3 to inlet water tank through water supply pipe 15, the water is sterilized by pipeline germicidal lamp 8.

[0039] The inlet of water tank 1 is connected to inlet pipe 14, and the other end of inlet pipe 14 is connected to the drainage tank of the production system. The drainage tank is used to collect wastewater discharged from the production system. A water pump is also installed on inlet pipe 14 to pump water from the drainage tank to water tank 1.

[0040] Several valves 20 are installed on the inlet pipe 14, the supply pipe 15, the first pipe 4, and the second pipe 5 to control the flow of water within them.

[0041] The pure water regeneration system provided in this embodiment is also equipped with a monitoring component. The monitoring component is connected to the PCL and sends the monitored system status and abnormal conditions to the PCL. The PCL then controls the working status of the valves 20 and water pumps in the system or issues an alarm to remind the staff to take action and eliminate the corresponding abnormal conditions.

[0042] Taking the liquid level sensor included in the monitoring component as an example, liquid level sensors are installed on water tank 1, water tank 2, and water tank 3. When the liquid level sensor of one of the water tanks detects that the liquid level in its tank is greater than the threshold, the PLC controls the valve 20 at the inlet of that water tank to close, controls the valve 20 at the outlet of that water tank to open, and starts the water pump corresponding to the outlet to pump the water in that water tank to the next water tank. Example 2

[0043] This embodiment provides a two-stage filtration pure water regeneration system based on Embodiment 1.

[0044] As shown in Figures 2 and 3, the monitoring components also include a flow meter, a differential pressure gauge, and a water quality analyzer 28. The flow meter is installed on the water supply pipe 15 to monitor the flow rate within the pipe. Differential pressure gauges are installed on both pipe 4 and pipe 5 to monitor the pressure difference within the pipes. The water quality analyzer 28 is installed on water tank 3, with its probe extending into the tank to detect the water quality, including but not limited to pH, turbidity, and chloride ion concentration. If one or more of these parameters do not meet the threshold range, the PCL will issue an alarm to alert personnel for timely intervention. Leakage sensors are installed at the bottom of water tanks 1, 2, and 3. When a leakage sensor detects a leak, the PCL will issue an alarm to alert personnel and ensure the system functions properly.

[0045] In this embodiment, as shown in Figures 1 and 3, both pipe 1 (4) and pipe 2 (5) include a three-channel structure, comprising a first pipe (17), a second pipe (18), and a third pipe (19). The three pipes are arranged in parallel, with their ends connected to a water tank pipe. The water tank pipe is connected to the water tank. Each of the first pipe (17), second pipe (18), and third pipe (19) is equipped with a secondary filter mounted on a bracket. Valves (20) are located at both ends of the three pipes, with the secondary filter on each pipe positioned between the front and rear valves (20) for easy disconnection of the water flow during maintenance.

[0046] As shown in Figures 3, 4, and 5, pipe 4 also includes a water tank outlet pipe 41 and a water tank inlet pipe 42. One end of the water tank outlet pipe 41 is connected to water tank 1, and a water pump 11 is installed on it. The other end is connected to a three-channel structure. One end of the water tank inlet pipe 42 is connected to water tank 2, and the other end is connected to the three-channel structure. Pipe 5 also includes a water tank outlet pipe 51 and a water tank inlet pipe 52. One end of the water tank outlet pipe 51 is connected to water tank 2, and a water pump 12 is installed on it. The other end is connected to the three-channel structure. One end of the water tank inlet pipe 52 is connected to water tank 3, and the other end is connected to a three-way pipe. The outlet pipe of water tank 3 is connected to the pipeline germicidal lamp 8 and the water pump 3. The water in water tank 3 is pumped to the pipeline germicidal lamp 8 by the water pump 313 and then delivered to the water supply pipe for use in the production system.

[0047] Designing pipes 4 and 5 as a three-channel structure allows the system to be maintained without shutting down during maintenance or replacement of the secondary filter. Maintenance or replacement can be carried out sequentially, and the system can still treat water through two or one of the pipes.

[0048] In some embodiments, a return pipe 16 is also included. The return pipe 16 is connected to water tank 2 via branch pipe 2 32 and to water tank 3 via branch pipe 33. Water tank 1 is connected to branch pipe 2 32 via branch pipe 1 31. One end of branch pipe 1 31 is connected to the outlet pipe 41 of water tank 1, and the other end is connected to branch pipe 2 32, thereby connecting to the return pipe 16. The other end of the return pipe 16 is connected to the drain tank of the production system. When the water level in the water tank is too high, in order to prevent the water in the water tank from overflowing, the water can flow through the return pipe 16 to the drain pipe for filtration again.

[0049] Both secondary filters 6 and 7 include a first filter 9 and a second filter 10. The two filters are arranged one after the other on the first pipe 17, the second pipe 18 or the third pipe 19. The two filters are used to filter particles of different sizes. For example, the first filter 9 filters larger particles and the second filter 10 filters smaller particles, thereby achieving graded filtration and extending the service life of the filters.

[0050] In some embodiments, as shown in Figures 1 and 3, the system further includes a base plate 21, a first lifting frame 22, a second lifting frame 23, a first support 24, a second support 25, and a third support 26. The base plate 21 is a rectangular plate structure. The first water tank 1, the first lifting frame 22, the second support 25, and the second lifting frame 23 are installed sequentially on the base plate 21 in one direction. The first support 24 is also connected to the base plate 21, with the connection point located on the outer periphery of the first water tank 1. The first water tank 1 is relatively low in height. The first pipe 4 is arranged above the first water tank 1. The second secondary filter 6 is installed on the first support 24. The second support 25 is located between the second water tank 2 and the third water tank 3. The second secondary filter 7 is installed on the second support 25. The second support 25 is also equipped with a manual operation panel 20 for manually controlling the valves and the water pump. The manual operation panel 20 is provided with several buttons for controlling the valves and the water pump. The bracket 326 is located behind the water tank 33. A pipeline germicidal lamp 8 is installed on the bracket 326, and an electrical control cabinet 29 is installed on its side. The electrical control cabinet 29 connects to the various water pumps and valves 20 in the system to realize the on / off control of the water pumps and valves 20.

[0051] A pneumatic valve 27 is installed on the water inlet pipe 14. It is connected to the PCL and is opened when pure water is needed for production.

[0052] During operation, wastewater from the system's drain tank enters water tank 1 through inlet pipe 14. Water in water tank 1 then passes through outlet pipe 41 and enters the three-channel structure of pipe 4. The water flows through first pipe 17, second pipe 18, and third pipe 19, and after being filtered by first filter 9 and second filter 10 on these pipes, it flows out of the three pipes and into inlet pipe 42 of water tank 2, then into water tank 2. After passing through first filter 9 and second filter 10 on pipe 4, the water quality is improved. Water in water tank 2 then passes through outlet pipe 51 and enters the three-channel structure of pipe 5. The water splits into three parts, flowing through first pipe 17, second pipe 18, and third pipe 19. After passing through first filter 9 and second filter 10 on these pipes, it flows out of the three pipes and into inlet pipe 52 of water tank 3, then into water tank 3. After passing through first filter 9 and second filter 10 on pipe 5, the water quality is further improved. The water in water tank 3 is tested by water quality analyzer 28, and the water quality information is sent to PCL for further judgment. If the water does not meet the set requirements, an alarm is issued so that the staff can take action to ensure that the water entering water tank 3 meets the set requirements. The water entering water tank 3 passes through pipeline germicidal lamp 8 and then enters water supply pipe 15, which provides purified water to the production system.

[0053] The above description is only a preferred embodiment of the present utility model. It should be noted that for those skilled in the art, several improvements and modifications can be made without departing from the technical principles of the present utility model, and these improvements and modifications should also be considered within the protection scope of the present utility model.

Claims

1. A two-stage filtered pure water regeneration system, characterized in that, The pure water regeneration system is located on the periphery of the production system and includes three water tanks: one, two, and three. Water tanks one and two are connected by a pipe, and water tanks two and three are connected by a pipe. A secondary filter (first stage) is installed on pipe one, and a secondary filter (second stage) is installed on pipe two. The inlet of water tank one is connected to an inlet pipe, the other end of which is connected to the drainage tank of the production system. The outlet of water tank three is connected to a supply pipe, the other end of which is connected to the inlet tank of the production system. A pipe-type germicidal lamp is installed on the supply pipe. The system also includes a monitoring component for monitoring system status and abnormal conditions.

2. The pure water regeneration system with secondary filtration according to claim 1, characterized in that, It also includes a base plate, a lifting frame one, a lifting frame two, a support one, and a support two. The water tank one, the lifting frame one, the support two, and the lifting frame two are sequentially installed on the base plate. The support one is installed on the base plate and on the outer periphery of the water tank one. The secondary filter one is installed on the support one. The water tank two is installed on the lifting frame one. The water tank three is installed on the lifting frame two. The support two is used to install the secondary filter two.

3. The pure water regeneration system with secondary filtration according to claim 1, characterized in that, The second bracket is equipped with a manual control panel for controlling the valves and water pump switches within the system.

4. The pure water regeneration system with secondary filtration according to claim 1, characterized in that, The monitoring components include a flow meter, a differential pressure gauge, a water quality detector, a leakage sensor, and a level sensor. The flow meter, differential pressure gauge, water quality detector, leakage sensor, and level sensor are connected to a PLC. The flow meter is installed on the water supply pipe. Differential pressure gauges are installed on both pipe one and pipe two. The water quality detector is installed on water tank three to detect the water quality in water tank three. The level sensor is installed on water tank one, water tank two, and water tank three, and the leakage sensor is installed at the bottom of each of them.

5. The pure water regeneration system with secondary filtration according to claim 1, characterized in that, Both pipe one and pipe two include a multi-channel structure, and each channel in the multi-channel structure is equipped with a secondary filter one or a secondary filter two.

6. The pure water regeneration system with secondary filtration according to claim 1, characterized in that, The secondary filter includes two filters, which are used to filter particles of different sizes respectively, and are located at the front and rear positions of the pipeline. The filters are mounted on a bracket.

7. The pure water regeneration system with secondary filtration according to claim 1, characterized in that, A water pump is installed on the first pipe, a water pump is installed on the second pipe, a water pump is installed on the water supply pipe, and several valves are installed on the first pipe, the second pipe, the water supply pipe, and the inlet pipe.

8. The pure water regeneration system with secondary filtration according to claim 1, characterized in that, It also includes a return pipe, one end of which is connected to the drain tank, and the other end is connected to the first water tank, the second water tank and the third water tank respectively through three branch pipes.

9. The pure water regeneration system with secondary filtration according to claim 1, characterized in that, A water pump is installed on the first pipe, a water pump is installed on the second pipe, a water pump is installed on the water supply pipe, and an inlet pump is installed on the inlet pipe.

10. The pure water regeneration system with secondary filtration according to claim 1, characterized in that, A bracket is also provided on one side of the water tank three. An electrical control cabinet connected to the electrical equipment in the system is provided on the bracket three. The pipeline germicidal lamp is installed on the bracket three.

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