Filtering device for producing water from high-purity water

Abstract

The utility model relates to the technical field of high-purity water production, in particular to a filtering device for high-purity water production, which comprises a filtering barrel, a water inlet pipe and a water outlet pipe are vertically and symmetrically installed on the side wall of the filter barrel, a sewage collecting pipe is installed below the filter barrel, a second electromagnetic valve is installed on the sewage collecting pipe, a threaded groove is formed in the inner wall of the filter barrel, a fixing ring can be fixed to the upper portion of a filter element through the threaded groove, and an electric telescopic rod is installed on a sealing cover. A fixing rod used for supporting the annular scraper is installed at the bottom end of the acting rod, water in the filter barrel can be filtered by the filter element in the discharging process, impurities attached to the inner wall of the filter element can be scraped away in the downward moving process of the annular scraper, and after a second electromagnetic valve is opened, impurities remaining in a dirt collecting pipe can be discharged from a dirt outlet. Compared with a traditional high-purity water producing and filtering device, the high-purity water producing and filtering device is more convenient to use, and the water producing efficiency of the high-purity water producing and filtering device is effectively improved.

Description

Technical Field

[0001] The utility model relates to the technical field of high-purity water production, in particular to a filtering device for high-purity water production. Background Art

[0002] High-purity water is water with extremely high chemical purity. Almost all the conductive media in the water are removed, and the non-dissociated colloids, gases and organic matter in the water are removed to a very low level. High-purity water is mainly prepared by filtration, so a filtration device for high-purity water production is needed.

[0003] A patent with announcement number CN 214031964 U discloses a high-purity water equipment with a high-efficiency filtering device, including an equipment housing and a water storage tank, a water storage tank is arranged below the extrusion plate, a water pipe is installed below the water storage tank, a water outlet pipe is connected to the right side of the water pump, a filter tank is installed on the right side of the water outlet pipe, a filter cartridge is installed inside the heating wire, a filter screen is installed inside the filter cartridge, and a water outlet cover plate is installed below the filter cartridge. Through the water pipe, water filtered through the osmotic membrane can be pumped to the water outlet pipe by the water pump, so that the water can quickly flow out of the water storage tank to prevent reverse osmosis of the water through the osmotic membrane.

[0004] However, the existing high-purity water filtering device cannot be used for filter element cleaning and cannot be self-cleaned, which makes it inconvenient to use; therefore, a high-purity water filtering device is proposed to solve the above problems. Utility Model Content

[0005] In order to make up for the deficiencies of the prior art and to address the problems existing in the prior art, the utility model proposes a filtering device for producing high-purity water.

[0006] The technical solution adopted by the utility model to solve its technical problems is: a filtering device for making water from high-purity water described in the utility model comprises a filtering barrel; a water inlet pipe and a water outlet pipe are symmetrically installed on the side wall of the filtering barrel, and the water inlet pipe is located directly above the water outlet pipe, and a No. 1 solenoid valve is installed on the water inlet pipe and the water outlet pipe respectively, a sewage collecting pipe is installed under the filtering barrel, a sewage outlet is arranged at the other end of the sewage collecting pipe, and a No. 2 solenoid valve is installed on the sewage collecting pipe, an annular limiting plate is installed at the bottom of the filtering barrel, a filter element is arranged in the filtering barrel, and the filter element is located on the annular limiting plate, so that A threaded groove is provided on the inner wall of the filter barrel, and a fixing ring can be fixed on the top of the filter element through the threaded groove. A sealing cover is provided at the upper opening of the filter barrel, and an electric telescopic rod is installed on the sealing cover. An acting rod is provided at the acting end of the electric telescopic rod, and the other end of the acting rod passes through the sealing cover and is arranged in the filter barrel. A fixing rod for supporting an annular scraper is installed at the bottom end of the acting rod, and the annular scraper is located in the filter element, and the function of autonomously cleaning the filter element is achieved. Compared with traditional high-purity water making and filtering devices, it is more convenient to use and effectively improves the water making efficiency of the high-purity water making and filtering devices.

[0007] Preferably, the bottom of the filter barrel is funnel-shaped, the connection between the water inlet pipe and the filter barrel is located above the opening of the annular limit plate, and the connection between the water outlet pipe and the filter barrel is located on the side of the annular limit plate, so as to achieve the filtering effect so as to retain impurities in the water in the filter element.

[0008] Preferably, the center lines of the annular limiting plate and the fixed ring coincide with the center line of the filter barrel, a rotating block is installed on the fixed ring, and the filter element is clamped between the fixed ring and the annular limiting plate, which achieves the function of fixing the filter element and preventing water from being discharged from the gap between the filter element and the filter barrel.

[0009] Preferably, the outer wall of the annular scraper intersects with the inner wall of the filter element, and the center line of the action rod coincides with the center line of the filter barrel, so that the annular scraper can scrape and clean the inner wall of the filter element.

[0010] Preferably, a No. 1 flange is installed under the sealing cover, a No. 2 flange is installed on the upper opening edge of the filter barrel, and sealing rubber rings are respectively provided at the lower part of the No. 1 flange and the upper part of the No. 2 flange, so as to achieve a sealing effect.

[0011] Preferably, the No. 2 flange is fixed to the No. 1 flange by bolts, and a bracket for support is installed on the outer wall of the filter barrel, which cooperates to achieve the effect of opening the filter barrel so that the filter element can be replaced.

[0012] The utility model is beneficial in that:

[0013] 1. The utility model seals the gaps between the upper and lower ends of the filter element and the inner wall of the filter barrel respectively through a fixing ring and an annular limit plate. The water in the filter barrel will be filtered by the filter element during the discharge process. The impurities attached to the inner wall of the filter element will be scraped off during the downward movement of the annular scraper. After the No. 2 solenoid valve is opened, the impurities retained in the sewage collecting pipe will be discharged from the sewage outlet, thereby achieving the effect of self-cleaning the filter element. Compared with traditional high-purity water making and filtering devices, it is more convenient to use and effectively improves the water making efficiency of the high-purity water making and filtering devices. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] In order to more clearly illustrate the embodiments of the utility model or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the utility model. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative labor.

[0015] Figure 1 is a schematic diagram of a first three-dimensional structure;

[0016] Figure 2 It is a cutaway and enlarged schematic diagram of the main structure of the filter component;

[0017] Figure 3 It is a cutaway and enlarged schematic diagram of the main structure of the filter barrel assembly;

[0018] Figure 4 This is an enlarged schematic diagram of area A in the cutaway diagram of the main structure of the filter barrel assembly;

[0019] Figure 5 It is a cutaway and enlarged schematic diagram of the main structure of the annular scraper assembly;

[0020] Figure 6 It is an enlarged schematic diagram of the main structure of the filter element assembly;

[0021] In the figure: 1. filter barrel; 2. water inlet pipe; 3. water outlet pipe; 4. No. 1 solenoid valve; 5. sewage collecting pipe; 6. sewage outlet; 7. No. 2 solenoid valve; 8. annular limit plate; 9. threaded groove; 10. fixing ring; 11. rotating block; 12. filter element; 13. sealing cover; 14. electric telescopic rod; 15. action rod; 16. fixing rod; 17. annular scraper; 18. No. 1 flange; 19. sealing rubber ring; 20. No. 2 flange; 21. bracket. DETAILED DESCRIPTION

[0022] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0023] See also Figure 1-6 As shown, a filtering device for making high-purity water comprises a filtering barrel 1; a water inlet pipe 2 and a water outlet pipe 3 are symmetrically installed on the upper and lower side walls of the filtering barrel 1, and the water inlet pipe 2 is located directly above the water outlet pipe 3, and a No. 1 solenoid valve 4 is installed on the water inlet pipe 2 and the water outlet pipe 3 respectively, a sewage collecting pipe 5 is installed under the filtering barrel 1, and a sewage outlet 6 is arranged at the other end of the sewage collecting pipe 5, and a No. 2 solenoid valve 7 is installed on the sewage collecting pipe 5, an annular limiting plate 8 is installed at the bottom of the filtering barrel 1, a filter element 12 is arranged in the filtering barrel 1, and the filter element 12 is located on the annular limiting plate 8, a threaded groove 9 is opened on the inner wall of the filtering barrel 1, and a fixing ring 10 can be fixed above the filter element 12 through the threaded groove 9, a sealing cover 13 is arranged at the upper opening of the filtering barrel 1, and an electric telescopic rod 14 is installed on the sealing cover 13, and the electric telescopic rod 14 An action rod 15 is provided at the action end, and the other end of the action rod 15 passes through the sealing cover 13 and is arranged in the filter barrel 1. A fixing rod 16 for supporting an annular scraper 17 is installed at the bottom end of the action rod 15, and the annular scraper 17 is located in the filter element 12. The bottom of the filter barrel 1 is arranged in a funnel shape. The connection between the water inlet pipe 2 and the filter barrel 1 is located above the opening of the annular limit plate 8, and the connection between the water outlet pipe 3 and the filter barrel 1 is located on the side of the annular limit plate 8. The center lines of the annular limit plate 8 and the fixing ring 10 coincide with the center line of the filter barrel 1. A rotating block 11 is installed on the fixing ring 10. The filter element 12 is clamped between the fixing ring 10 and the annular limit plate 8. The outer wall of the annular scraper 17 intersects with the inner wall of the filter element 12, and the center line of the action rod 15 coincides with the center line of the filter barrel 1.

[0024] During operation, it is inconvenient to clean the filter element because the existing high-purity water filtering device cannot clean the filter element and cannot be cleaned independently, resulting in inconvenience in use. In this solution, the filter element 12 is placed in the filter barrel 1 and is located on the annular limiting plate 8, and then the fixing ring 10 is screwed on the filter element 12 through the threaded groove 9, and the filter element 12 is fixed by screwing down the fixing ring 10, and the gaps between the upper and lower ends of the filter element 12 and the inner wall of the filter barrel 1 are sealed by the fixing ring 10 and the annular limiting plate 8 respectively. During normal use, the No. 2 solenoid valve 7 remains in a closed state, and the No. 1 solenoid valve 4 on the water inlet pipe 2 is opened, and the external water source enters the filter barrel 1 from the water inlet pipe 2 and will flow into the filter element 12. After the filter barrel 1 is filled with water, the No. 1 solenoid valve 4 on the water outlet pipe 3 is opened, and the water in the filter barrel 1 will be discharged through the water outlet pipe 3. The outlet pipe 3 is arranged on the side of the filter element 12. The water in the filter barrel 1 will be filtered by the filter element 12 during the discharge process, and the filtered impurities will remain on the inner wall of the filter element 12. The electric telescopic rod 14 controls the action rod 15 to extend. When the action rod 15 is extended, it will drive the annular scraper 17 to move downward in the filter barrel 1 through the fixed rod 16, and the annular scraper 17 will scrape off the impurities attached to the inner wall of the filter element 12 during the downward movement. The scraped impurities will fall into the sewage collecting pipe 5, and the No. 2 solenoid valve 7 is controlled to be opened. After the No. 2 solenoid valve 7 is opened, the impurities retained in the sewage collecting pipe 5 will be discharged from the sewage outlet 6 for sewage discharge, which achieves the function of self-cleaning the filter element. Compared with the traditional high-purity water making and filtering device, it is more convenient to use and effectively improves the water making efficiency of the high-purity water making and filtering device.

[0025] See also Figure 2-5 As shown, a No. 1 flange 18 is installed under the sealing cover 13, a No. 2 flange 20 is installed on the upper opening edge of the filter barrel 1, and sealing rubber rings 19 are respectively provided at the lower part of the No. 1 flange 18 and the upper part of the No. 2 flange 20. The No. 2 flange 20 is fixed to the No. 1 flange 18 by bolts, and a bracket 21 for support is installed on the outer wall of the filter barrel 1.

[0026] During operation, in order to improve the normal use of the high-purity water production and filtration device in this scheme, ensure the sealing effect of the device, and facilitate the replacement of damaged filter elements, in this scheme, a sealing rubber ring 19 is respectively arranged on the No. 2 flange 20 and under the No. 1 flange 18, and the No. 1 flange 18 and the No. 2 flange 20 are fixed by bolts. During maintenance and replacement, the sealing cover 13 can be removed from the filter barrel 1 by removing the bolts, and the filter element 12 can be taken out of the filter barrel 1 and replaced by unscrewing the fixing ring 10. The cooperation achieves the effect of ensuring the sealing effect and improves the water production and filtration effect.

[0027] Working principle: by placing the filter element 12 in the filter barrel 1 and positioning it on the annular limiting plate 8, then screwing the fixing ring 10 onto the filter element 12 through the threaded groove 9, fixing the filter element 12 by screwing down the fixing ring 10, and sealing the gaps between the upper and lower ends of the filter element 12 and the inner wall of the filter barrel 1 respectively through the fixing ring 10 and the annular limiting plate 8. During normal use, the No. 2 solenoid valve 7 remains in a closed state, and the No. 1 solenoid valve 4 on the water inlet pipe 2 is opened. External water source enters the filter barrel 1 from the water inlet pipe 2 and will flow into the filter element 12. After the filter barrel 1 is filled with water, the No. 1 solenoid valve 4 on the water outlet pipe 3 is opened, and the water in the filter barrel 1 will be discharged through the water outlet pipe 3, and the water outlet pipe 3 is arranged on the side of the filter element 12. The water in the filter barrel 1 is During the discharge process, it will be filtered by the filter element 12, and the filtered impurities will remain on the inner wall of the filter element 12. The electric telescopic rod 14 controls the action rod 15 to extend. When the action rod 15 is extended, it will drive the annular scraper 17 to move downward in the filter barrel 1 through the fixed rod 16, and the annular scraper 17 will scrape off the impurities attached to the inner wall of the filter element 12 during the downward movement. The scraped impurities will fall into the sewage collecting pipe 5, and the No. 2 solenoid valve 7 is controlled to open. After the No. 2 solenoid valve 7 is opened, the impurities retained in the sewage collecting pipe 5 will be discharged from the sewage outlet 6 for sewage discharge, which achieves the effect of self-cleaning the filter element. Compared with the traditional high-purity water making and filtering device, it is more convenient to use and effectively improves the water making efficiency of the high-purity water making and filtering device.

[0028] By respectively providing sealing rubber rings 19 on the No. 2 flange 20 and under the No. 1 flange 18, and fixing the No. 1 flange 18 and the No. 2 flange 20 by bolts, the sealing cover 13 can be removed from the filter barrel 1 by removing the bolts during maintenance and replacement, and the filter element 12 can be taken out of the filter barrel 1 and replaced by unscrewing the fixing ring 10, thereby achieving the effect of ensuring the sealing effect and improving the water production and filtration effect.

[0029] The above shows and describes the basic principle, main features and advantages of the utility model. Those skilled in the art should understand that the utility model is not limited by the above embodiments, and the above embodiments and descriptions are only for explaining the principle of the utility model. Without departing from the spirit and scope of the utility model, the utility model may have various changes and improvements, and these changes and improvements fall within the scope of the utility model to be protected.

Claims

1. A filtering device for producing high-purity water, characterized in that: The invention comprises a filter barrel (1); a water inlet pipe (2) and a water outlet pipe (3) are symmetrically installed on the upper and lower side walls of the filter barrel (1), and the water inlet pipe (2) is located directly above the water outlet pipe (3); a No. 1 solenoid valve (4) is installed on the water inlet pipe (2) and the water outlet pipe (3), respectively; a sewage collecting pipe (5) is installed under the filter barrel (1); a sewage outlet (6) is provided at the other end of the sewage collecting pipe (5); a No. 2 solenoid valve (7) is installed on the sewage collecting pipe (5); an annular limiting plate (8) is installed at the bottom of the filter barrel (1); a filter element (12) is arranged in the filter barrel (1), and the filter element (12) is located on the annular limiting plate (8). The filter barrel (1) has an inner wall provided with a threaded groove (9), and a fixing ring (10) can be fixed on the top of the filter element (12) through the threaded groove (9). A sealing cover (13) is provided at the upper opening of the filter barrel (1), and an electric telescopic rod (14) is installed on the sealing cover (13). An acting rod (15) is provided at the acting end of the electric telescopic rod (14), and the other end of the acting rod (15) passes through the sealing cover (13) and is arranged in the filter barrel (1). A fixing rod (16) for supporting an annular scraper (17) is installed at the bottom end of the acting rod (15), and the annular scraper (17) is located in the filter element (12).

2. The filtering device for producing high-purity water according to claim 1, characterized in that: The bottom of the filter barrel (1) is arranged in a funnel shape, the connection between the water inlet pipe (2) and the filter barrel (1) is located above the opening of the annular limiting plate (8), and the connection between the water outlet pipe (3) and the filter barrel (1) is located on the side of the annular limiting plate (8).

3. The filtering device for producing high-purity water according to claim 1, characterized in that: The center lines of the annular limiting plate (8) and the fixing ring (10) coincide with the center line of the filter barrel (1); a rotating block (11) is mounted on the fixing ring (10); and the filter element (12) is clamped between the fixing ring (10) and the annular limiting plate (8).

4. The filtering device for producing high-purity water according to claim 1, characterized in that: The outer wall of the annular scraper (17) intersects with the inner wall of the filter element (12), and the center line of the action rod (15) coincides with the center line of the filter barrel (1).

5. The filtering device for producing high-purity water according to claim 1, characterized in that: A first flange (18) is installed under the sealing cover (13), a second flange (20) is installed on the edge of the upper opening of the filter barrel (1), and a sealing rubber ring (19) is provided at the lower part of the first flange (18) and the upper part of the second flange (20), respectively.

6. A filtering device for producing high-purity water according to claim 5, characterized in that: The second flange (20) is fixed to the first flange (18) by means of bolts, and a support bracket (21) is installed on the outer wall of the filter barrel (1).

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