Anti-backflow DTRO concentrated water tank

CN224868884UActive Publication Date: 2026-10-20INNER MONGOLIA BODA SHIDI CHEM CO LTD
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Patent Information

Application Number
CN202522514617.1
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2025-11-27
Publication Date
2026-10-20
Estimated Expiration
2035-11-27

AI Technical Summary

Technical Problem

[0005]本实用新型的目的在于提供一种防回流的DTRO浓水箱,以解决上述背景技术中提出浓水箱内部液体回流的问题

Benefits of technology

[0014]与现有技术相比,本实用新型的有益效果是:通过设置有内管、通槽和浮块,内管与第一开关阀对接,液体进入内管内部时,可顺着通槽进入第一箱体、第二箱体内部存储,浮块活动安装在内管的内部,可随着液体上浮,移至顶部位置时,可挤压顶部的气囊,堵住内管顶部通道,避免液体储满,顺着对接管回流至渗透膜箱内部,实现了该浓水箱使用时的防回流功能;

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model discloses a DTRO concentrated water tank of anti -backflow, specifically related to concentrated water tank technical field, including first box and butt joint pipe, the top of first box is installed with butt joint pipe, the top of butt joint pipe is installed with first switch valve, the top of first switch valve is installed with liquid inlet pipe, the top of first box inside is provided with anti -backflow subassembly, anti -backflow subassembly includes second switch valve, flush pipe, inner tube, through groove, float, gasbag, spring and contact pad. The utility model discloses through being provided with inner tube, through groove and float, when liquid enters the inside of inner tube, can along with through groove enter first box, the inside storage of second box, and float movable mounting is in the inside of inner tube, can along with liquid float, removes to top position time, can extrude top gasbag, blocks the inner tube top passageway, avoids liquid storage full, along butt joint pipe backflow to the inside of osmotic membrane tank, has realized the anti -backflow function when this concentrated water tank uses.
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Description

Technical Field

[0001] This utility model relates to the field of concentrate tank technology, specifically a DTRO concentrate tank with backflow prevention. Background Technology

[0002] The concentrate tank plays a crucial role in the reverse osmosis system. It is mainly used to collect the concentrate produced during the reverse osmosis process. When the reverse osmosis system is running, the feed water passes through the semi-permeable membrane under high pressure. Water molecules pass through the membrane and enter the product water side, while salt and other impurities are trapped to form concentrate. This concentrate is continuously transported to the concentrate tank for storage.

[0003] If the concentrate tank contains too much liquid during use, the liquid will flow back and enter the permeate membrane tank through the pipes, which can easily contaminate the inside of the tank.

[0004] Therefore, a DTRO concentrate tank with backflow prevention is needed to solve the above problems. Utility Model Content

[0005] The purpose of this invention is to provide a DTRO concentrate tank with backflow prevention to solve the problem of liquid backflow inside the concentrate tank mentioned in the background art.

[0006] To achieve the above objectives, this utility model provides the following technical solution: a DTRO concentrate tank with backflow prevention, comprising a first tank body and a connecting pipe. The connecting pipe is installed at the top of the first tank body, and a first switching valve is installed at the top of the connecting pipe. An inlet pipe is installed at the top of the first switching valve. An anti-backflow component is provided at the top of the interior of the first tank body. The anti-backflow component includes a second switching valve, a flushing pipe, an inner pipe, a through groove, a float, an air bladder, a spring, and a contact pad. The second switching valve is installed on the right side of the connecting pipe, and a flushing pipe is installed on the right side of the second switching valve. An inner pipe is installed at the top of the interior of the first tank body. A through groove is provided on the outer side wall of the inner pipe. A float is movably installed inside the inner pipe. An air bladder is fixed at the top of the float. A spring is installed inside the air bladder. A contact pad is fixed at the top of the air bladder.

[0007] As a further technical solution of this utility model, a corrugated pipe is installed at the bottom of the first box, and a second box is installed at the bottom of the corrugated pipe.

[0008] As a further technical solution of this utility model, a first side tube is installed on the right side of the first box, and a second side tube is installed at the bottom of the right side of the second box.

[0009] As a further technical solution of this utility model, a boss is fixed on the outer side wall of the first box, and a guide rod is fixed at the bottom end of the boss.

[0010] As a further technical solution of this utility model, a guide ring is fixed to the outer side wall of the second box, a fixing platform is fixed to the outer side wall of the guide ring, a fixing hole is provided inside the fixing platform, and a fixing bolt is threaded into the fixing hole.

[0011] As a further technical solution of this utility model, several bosses are fixed on the outer side wall of the first housing, and several guide rings are fixed on the outer side wall of the second housing, with the bosses and guide rings arranged in a ring.

[0012] As a further technical solution of this utility model, the cross-section of the guide rod is smaller than the cross-section of the guide ring, and the bottom end of the guide rod extends into the interior of the guide ring.

[0013] As a further technical solution of this utility model, a third switching valve is installed on the left side of the connecting pipe, a diversion pipe is installed on the left side of the third switching valve, and a one-way valve core is installed inside the diversion pipe.

[0014] Compared with the prior art, the beneficial effects of this utility model are as follows: by setting an inner tube, a through groove and a float, the inner tube is connected to the first switch valve. When the liquid enters the inner tube, it can enter the first tank and the second tank for storage along the through groove. The float is movably installed inside the inner tube and can float with the liquid. When it moves to the top position, it can squeeze the air bag at the top and block the top channel of the inner tube to prevent the liquid from filling up and flowing back into the permeate membrane tank along the connecting pipe. This realizes the backflow prevention function when the concentrate tank is in use.

[0015] By incorporating a corrugated pipe that connects the first tank and the second tank, the capacity of the first tank, the corrugated pipe, and the second tank can be increased by unfolding the corrugated pipe, thus enabling the auxiliary expansion function of the concentrate tank during use.

[0016] The system is equipped with a third switching valve, a diversion pipe, and a one-way valve core. The diversion pipe is connected to the connecting pipe via the third switching valve, allowing it to connect to other concentrate tanks. When the first and second tanks are full, the third switching valve can be opened, allowing the liquid to flow along the diversion pipe to other concentrate tanks for diversion, thus realizing the diversion function of the concentrate tank during use. Attached Figure Description

[0017] Figure 1 This is a frontal cross-sectional view of the present invention.

[0018] Figure 2 This is a front view structural diagram of the present utility model;

[0019] Figure 3 This is a front view cross-sectional structural diagram of the first box body of this utility model;

[0020] Figure 4 This is a front view cross-sectional structural diagram of the second box of this utility model.

[0021] In the diagram: 1. First housing; 2. Connecting pipe; 3. First switching valve; 4. Inlet pipe; 5. Second switching valve; 6. Flushing pipe; 7. Inner pipe; 8. Through groove; 9. Float; 10. Airbag; 11. Spring; 12. Contact pad; 13. First side pipe; 14. Bellows; 15. Second housing; 16. Second side pipe; 17. Boss; 18. Guide rod; 19. Guide ring; 20. Fixing platform; 21. Fixing hole; 22. Fixing bolt; 23. Third switching valve; 24. Diverter pipe; 25. One-way valve core. Detailed Implementation

[0022] 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.

[0023] Please see Figure 1-4 An embodiment of this utility model provides: a DTRO concentrate tank with backflow prevention, including a first tank body 1 and a connecting pipe 2. The connecting pipe 2 is installed at the top of the first tank body 1, and a first switching valve 3 is installed at the top of the connecting pipe 2. An inlet pipe 4 is installed at the top of the first switching valve 3. An anti-backflow component is provided at the top of the interior of the first tank body 1. The anti-backflow component includes a second switching valve 5, a flushing pipe 6, an inner pipe 7, a through groove 8, a float 9, an air bag 10, a spring 11, and a contact pad 12. The second switching valve 5 is installed on the right side of the connecting pipe 2, and the flushing pipe 6 is installed on the right side of the second switching valve 5. The inner pipe 7 is installed at the top of the interior of the first tank body 1. A through groove 8 is provided on the outer side wall of the inner pipe 7. A float 9 is movably installed inside the inner pipe 7. An air bag 10 is fixed at the top of the float 9. A spring 11 is installed inside the air bag 10. A contact pad 12 is fixed at the top of the air bag 10.

[0024] Specifically, such as Figure 1 and Figure 3 As shown, during use, the inner tube 7 is connected to the connecting tube 2 and is located at the top of the first housing 1. After the liquid enters the inner tube 7 through the connecting tube 2, it can enter the first housing 1 and the second housing 15 through the through groove 8. As the liquid level rises, the float 9 can rise with the liquid until it blocks the bottom channel of the connecting tube 2 to prevent liquid backflow. The flushing pipe 6 located on the right side of the connecting tube 2 can be used for flushing the inner tube 7 and the inside of the connecting tube 2. When the second switch valve 5 is opened, the inside of the connecting tube 2 and the inner tube 7 can be flushed with liquid to prevent debris from clogging and affecting use.

[0025] A corrugated pipe 14 is installed at the bottom of the first housing 1, and a second housing 15 is installed at the bottom of the corrugated pipe 14. A first side pipe 13 is installed on the right side of the first housing 1, and a second side pipe 16 is installed at the bottom of the right side of the second housing 15. A boss 17 is fixed on the outer wall of the first housing 1, and a guide rod 18 is fixed at the bottom of the boss 17. A guide ring 19 is fixed on the outer wall of the second housing 15. Several bosses 17 are fixed on the outer wall of the first housing 1, and several guide rings 19 are fixed on the outer wall of the second housing 15. Several bosses 17 and guide rings 19 are arranged in a ring. The cross-section of the guide rod 18 is smaller than the cross-section of the guide ring 19. The bottom end of the guide rod 18 extends into the interior of the guide ring 19. A fixing platform 20 is fixed on the outer wall of the guide ring 19. A fixing hole 21 is provided inside the fixing platform 20, and a fixing bolt 22 is threaded into the fixing hole 21.

[0026] Specifically, such as Figure 1 , Figure 2 and Figure 4 As shown, when in use, after the fixing bolt 22 is loosened, the guide rod 18 can move upward along the inner side of the guide ring 19, which can unfold the bellows 14. This can help to expand the capacity. After the expansion is completed, tighten the fixing bolt 22 to fix the position.

[0027] A third switching valve 23 is installed on the left side of the connecting pipe 2, and a diversion pipe 24 is installed on the left side of the third switching valve 23. A one-way valve core 25 is installed inside the diversion pipe 24.

[0028] Specifically, such as Figure 1 , Figure 2 and Figure 3 As shown, during use, the diversion pipe 24 can be connected to the concentrate tanks of other groups. After the third switch valve 23 is opened, excess liquid can enter the interior of other concentrate tanks through the diversion pipe 24 for diversion operation. The internal one-way valve core 25 is used to prevent liquid backflow.

[0029] Working principle: During use, first adjust the tank body. After loosening the fixing bolt 22, the guide rod 18 can move upward along the inner side of the guide ring 19, which can expand the bellows 14, thus assisting in the expansion process. After the expansion is completed, tighten the fixing bolt 22 to fix the position. After the liquid enters the inner tube 7 through the connecting pipe 2, it can enter the first tank 1 and the second tank 15 through the through groove 8. As the liquid level rises, the float 9 can rise with the liquid until it blocks the bottom channel of the connecting pipe 2, preventing liquid from entering the tank. Backflow: The flushing pipe 6 located on the right side of the connecting pipe 2 can be used for flushing the inner pipe 7 and the inside of the connecting pipe 2. Opening the second switch valve 5 allows the inside of the connecting pipe 2 and the inner pipe 7 to be flushed with liquid to prevent debris from clogging and affecting use. If the concentrate tank is about to be full, the diversion pipe 24 located on the side of the connecting pipe 2 can be connected to the concentrate tanks of other groups. After opening the third switch valve 23, the excess liquid can enter the interior of other concentrate tanks through the diversion pipe 24 for diversion operation. The internal one-way valve core 25 is used to prevent liquid backflow.

[0030] It will be apparent to those skilled in the art that this invention 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 essential characteristics of this invention. Therefore, the embodiments should be considered illustrative and non-limiting in all respects, and the scope of this invention is defined by the appended claims rather than the foregoing description. Thus, it is intended that all variations falling within the meaning and scope of equivalents of the claims be included within this invention. No reference numerals in the claims should be construed as limiting the scope of the claims.

Claims

1. A DTRO concentrate tank with backflow prevention, comprising a first tank body (1) and a connecting pipe (2), characterized in that: The top of the first housing (1) is equipped with a connecting pipe (2), the top of the connecting pipe (2) is equipped with a first switching valve (3), the top of the first switching valve (3) is equipped with an inlet pipe (4), and the top of the interior of the first housing (1) is equipped with an anti-backflow component. The anti-backflow assembly includes a second switch valve (5), a flushing pipe (6), an inner pipe (7), a through groove (8), a float (9), an airbag (10), a spring (11), and a contact pad (12). The second switch valve (5) is installed on the right side of the connecting pipe (2), and the flushing pipe (6) is installed on the right side of the second switch valve (5). The inner pipe (7) is installed at the top of the first housing (1). The outer wall of the inner pipe (7) is provided with a through groove (8). The float (9) is movably installed inside the inner pipe (7). The airbag (10) is fixed at the top of the float (9). The spring (11) is installed inside the airbag (10). The contact pad (12) is fixed at the top of the airbag (10).

2. The DTRO concentrate tank with backflow prevention according to claim 1, characterized in that: A corrugated pipe (14) is installed at the bottom of the first housing (1), and a second housing (15) is installed at the bottom of the corrugated pipe (14).

3. A DTRO concentrate tank with backflow prevention according to claim 2, characterized in that: The first box (1) has a first side tube (13) installed on the right side, and the second box (15) has a second side tube (16) installed at the bottom right side.

4. A DTRO concentrate tank with backflow prevention according to claim 2, characterized in that: The outer side wall of the first box (1) is fixed with a boss (17), and the bottom end of the boss (17) is fixed with a guide rod (18).

5. A DTRO concentrate tank with backflow prevention according to claim 4, characterized in that: The outer side wall of the second housing (15) is fixed with a guide ring (19), and the outer side wall of the guide ring (19) is fixed with a fixing platform (20). The fixing platform (20) has a fixing hole (21) inside, and a fixing bolt (22) is threaded inside the fixing hole (21).

6. A DTRO concentrate tank with backflow prevention according to claim 5, characterized in that: Several bosses (17) are fixed on the outer side wall of the first housing (1), and several guide rings (19) are fixed on the outer side wall of the second housing (15). The bosses (17) and guide rings (19) are arranged in a ring.

7. A DTRO concentrate tank with backflow prevention according to claim 6, characterized in that: The cross-section of the guide rod (18) is smaller than the cross-section of the guide ring (19), and the bottom end of the guide rod (18) extends into the interior of the guide ring (19).

8. A DTRO concentrate tank with backflow prevention according to claim 1, characterized in that: A third switching valve (23) is installed on the left side of the connecting pipe (2), a diversion pipe (24) is installed on the left side of the third switching valve (23), and a one-way valve core (25) is installed inside the diversion pipe (24).