Sanitizing device for pure water preparation systems
By adding control valves and T-junctions to the reverse osmosis system to form a loop, the cleaning problem from the reverse osmosis system to the pure water storage system is solved, achieving efficient pipeline cleaning and hygienic protection of the pure water preparation system.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- TIAN DI NO 1 BEVERAGE INC
- Filing Date
- 2025-07-30
- Publication Date
- 2026-07-10
AI Technical Summary
In existing pure water preparation systems, the pipeline from the reverse osmosis system to the pure water storage system after the UV lamp cannot be effectively cleaned. The cleaning solution concentration is low, and there is a risk of contamination every time production is stopped and restarted, affecting the quality and safety of pure water.
By adding control valves and T-junctions to the reverse osmosis system to form a loop, and using components such as CIP cleaning tanks, cleaning pumps, and cleaning valves, the reverse osmosis system can be cleaned simultaneously to the pure water storage tank and the CIP hot water system, thereby enhancing the pipeline cleaning effect.
This improved the hygiene quality of the pure water preparation system, reduced the risk of contamination, and ensured the cleaning effect and safety of the pure water system.
Smart Images
Figure CN224477979U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to pure water preparation and disinfection technology, and in particular to a sanitary disinfection device for a pure water preparation system. Background Technology
[0002] Currently, reverse osmosis is a membrane separation technology used in water treatment. Its principle is that raw water passes through a reverse osmosis membrane under high pressure, causing the solvent in the water to diffuse from a high concentration to a low concentration, thus achieving separation, purification, and concentration. Reverse osmosis can remove bacteria, viruses, colloids, organic matter, and dissolved salts from water, and is widely used in pharmaceuticals, industry, new materials, new energy, cosmetics, food and beverage, and other industries.
[0003] CIP, also known as in-situ cleaning, is defined as a method of cleaning and sterilizing food-contacting surfaces by using a cleaning solution of a certain temperature and concentration under closed conditions without disassembling equipment or components. It has been widely used in beverage production in my country and has become an integral part of the production process, directly affecting product quality.
[0004] After a period of normal operation, the sand and carbon filter and membrane elements of the reverse osmosis system will be contaminated by suspended solids or sparingly soluble salts that may be present in the feed water. The most common contaminants are calcium carbonate precipitation, calcium sulfate precipitation, metal oxide precipitation, silicon deposits, inorganic or organic deposits, and microbial contamination. These contaminants often reduce the service life of the membrane system and, in severe cases, affect the quality of the water produced, causing fluctuations in physicochemical and microbiological indicators or exceeding the control standards.
[0005] The reverse osmosis system includes a pre-filtration system (sand filter, carbon filter, and security filter), a reverse osmosis filtration system, and a pure water storage system. Each system has a corresponding cleaning device. For example, the pre-filtration system is equipped with forward and reverse flushing of the tank and steam or hot water disinfection devices for the carbon filter. The reverse osmosis system has an independent cleaning system that can clean the security filter and the reverse osmosis system independently. The pure water storage system has an independent CIP system to clean the storage tank.
[0006] Patent application number CN202210360684.0 discloses a CIP cleaning system, which includes: a water-using mechanism, a purified water tank, an alkali tank, a water for injection tank, a return water mechanism, a first conductivity meter, and a controller. During operation, when the conductivity of the return water meets the requirements, it indicates that the quality of the return water is up to standard. The controller then controls the return water mechanism to output the collected purified water return water to the purified water tank through the first return water pipeline, the collected alkali return water to the alkali tank through the second return water pipeline, and the collected water for injection return water to the water for injection tank through the third return water pipeline. When the conductivity of the return water does not meet the requirements, the controller controls the return water mechanism to discharge the collected return water through a drain pipe.
[0007] Patent document with application number "CN202310852705.5" discloses a CIP cleaning system, which includes two or more cleaning fluid storage tanks arranged in parallel. Each cleaning fluid storage tank has a cleaning pipeline at the bottom and a recovery pipeline connected to the cleaning pipeline at the top. It also includes one or more cleaning targets and a pipe gallery connected to the cleaning targets, and each cleaning pipeline is also connected to the pipe gallery. Each cleaning fluid storage tank has an overflow pipe at the top and a sewage pipe at the bottom. Each overflow pipe is connected by an auxiliary pipe.
[0008] The aforementioned patent documents, in conjunction with existing technology, reveal the following deficiencies in existing sanitary disinfection devices used in pure water preparation systems:
[0009] Currently, the pipeline from the UV lamp exiting the reverse osmosis system to the pure water storage system cannot be cleaned. Furthermore, the concentration of the cleaning solution after passing through the reverse osmosis membrane system is low, resulting in poor cleaning effect from the UV lamp exiting the pipeline to the pure water pipeline. Additionally, each time the pure water system or other systems are cleaned during shutdown and restart, pure water is used for CIP cleaning. This requires the pure water to be prepared again and then pumped back to the CIP system for cleaning. If the pure water system has undergone maintenance or the pure water pipeline has been out of use for an extended period, there is a risk of contamination due to multiple cross-contaminations, posing quality and safety hazards. Utility Model Content
[0010] In order to overcome the shortcomings of the existing technology, this utility model provides a sanitary disinfection device for a pure water preparation system, which solves the problem of sanitary disinfection devices for pure water preparation systems.
[0011] The first aspect of this utility model is to provide a sanitary disinfection device for a pure water preparation system, including a reverse osmosis system, a CIP cleaning tank, a cleaning pump, a cleaning valve, a reflux valve, a check valve, a second outlet valve, and a CIP circuit assembly. The CIP circuit assembly includes a UV germicidal lamp, a first outlet valve, a third control valve, a fourth control valve, a first CIP control valve, a pure water storage tank, and a CIP hot water storage tank. The pure water storage tank is connected to the third control valve and the CIP hot water storage tank, respectively. The third control valve, the fourth control valve, and the first CIP control valve are connected by a three-way valve. The first CIP control valve is installed on the connecting pipeline between the pure water storage tank and the CIP hot water storage tank. The third control valve, the UV sterilization lamp, and the first outlet valve are connected in sequence. The first outlet valve is connected to the CIP cleaning tank and the one-way valve respectively. The CIP cleaning tank, cleaning pump, cleaning valve, reverse osmosis system, second outlet valve, and one-way valve are connected end to end to form a loop. The cleaning solution prepared by the CIP cleaning tank is used to clean the reverse osmosis system by the cleaning pump and the cleaning valve. After cleaning, it flows back to the CIP cleaning tank for circulation cleaning through the outlet valve and the one-way valve.
[0012] In a preferred embodiment of the first aspect of this utility model, the CIP cleaning tank is provided with a drain pipe along its side, and a drain valve is provided on the drain pipe.
[0013] In a first aspect of this utility model, as a preferred embodiment, a water inlet pipe is provided on the connecting pipe between the cleaning valve and the reverse osmosis system, and a carbon filter water inlet pipe is provided on the water inlet pipe.
[0014] In a preferred embodiment of the first aspect of this utility model, a concentrate discharge pipeline is provided at the lower part of the reverse osmosis system, and a concentrate discharge valve is provided on the concentrate discharge pipeline.
[0015] In a preferred embodiment of the first aspect of this utility model, the CIP circuit assembly further includes a first control valve and a second control valve, wherein the first control valve and the second control valve are disposed on the connecting pipeline between the ultraviolet germicidal UV lamp and the pure water storage tank.
[0016] In a first aspect of this utility model, as a preferred embodiment, the first control valve is located between the second control valve and the third control valve.
[0017] In a preferred embodiment of the first aspect of this utility model, a second CIP control valve is provided on the connecting pipeline between the pure water storage tank and the CIP hot water storage tank.
[0018] In a first aspect of this utility model, as a preferred embodiment, the first CIP control valve is located between the second CIP control valve and the CIP hot water storage tank.
[0019] In a preferred embodiment of the first aspect of this utility model, a reflux valve is provided on the reflux pipeline connecting the reverse osmosis system and the CIP cleaning tank.
[0020] In a first aspect of this utility model, as a preferred embodiment, the reflux valve is located between the first outlet valve and the check valve.
[0021] Compared with the prior art, the beneficial effects of this utility model are as follows:
[0022] 1. By modifying the UV outlet pipe of the reverse osmosis system and adding control valves and tee pipes, the reverse osmosis system can be controlled to produce pure water to a pure water system or a CIP hot water system.
[0023] 2. The pure water storage tank is connected to the third control valve and the CIP hot water storage tank respectively. The third control valve, the fourth control valve, and the first CIP control valve are connected by a three-way valve. The first CIP control valve is installed on the connecting pipeline between the pure water storage tank and the CIP hot water storage tank. The third control valve, the UV sterilization lamp, and the first outlet valve are connected in sequence. The first outlet valve is connected to the CIP cleaning tank and the one-way valve respectively. The CIP cleaning tank, the cleaning pump, the cleaning valve, the reverse osmosis system, the second outlet valve, and the one-way valve are connected end to end to form a loop. The cleaning solution prepared by the CIP cleaning tank is used to clean the reverse osmosis system by the cleaning pump and the cleaning valve. After cleaning, it flows back to the CIP cleaning tank for circulation cleaning through the outlet valve and the one-way valve. Using the apparatus of this application, after the reverse osmosis system is disinfected, the pipeline from the reverse osmosis membrane to the pure water storage tank and the pipeline from the reverse osmosis membrane to the CIP hot water tank are simultaneously cleaned by CIP. After cleaning and disinfection, the reverse osmosis system can produce clean pure water to the CIP hot water tank, and perform CIP cleaning on the pure water system and other systems, thereby improving the hygienic quality of the pure water used in production and the CIP cleaning hygiene of the entire production system. Attached Figure Description
[0024] Figure 1 This is a structural block diagram of the present invention;
[0025] In the diagram: 1. Reverse osmosis system; 2. CIP cleaning tank; 3. Cleaning pump; 4. Cleaning valve; 5. Carbonized water filter; 6. Drain valve; 7. Concentrate discharge valve; 8. UV sterilization lamp; 9. First outlet valve; 10. Return valve; 11. Check valve; 12. Second outlet valve; 13. First control valve; 14. Second control valve; 15. Third control valve; 16. Fourth control valve; 17. First CIP control valve; 18. Pure water storage tank; 19. Second CIP control valve; 20. CIP hot water storage tank. Detailed Implementation
[0026] The utility model will now be further described in conjunction with the accompanying drawings and specific embodiments. It should be noted that, without conflict, the various embodiments or technical features described below can be arbitrarily combined to form new embodiments. Unless otherwise specified, the materials and equipment used in this embodiment are all commercially available. Examples of the embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals denote the same or similar elements or elements having the same or similar functions throughout. The embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain this application, and should not be construed as limiting this application.
[0027] In the description of this application, it should be understood that the terms "upper," "lower," "front," "rear," "vertical," "horizontal," "top," "bottom," "inner," and "outer," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings, and are only for the convenience of describing this application 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 on this application. In the description of this application, "a plurality of" means two or more, unless otherwise precisely specified.
[0028] In the description of this application, it should be noted that, unless otherwise expressly specified and limited, the terms "connected," "linked," and "connected" should be interpreted broadly. For example, they can refer to a fixed connection, a connection through an intermediary, or a connection within two elements or an interaction between two elements. Those skilled in the art can understand the specific meaning of the above terms in this application according to the specific circumstances.
[0029] The terms "first," "second," etc., in the specification, claims, and accompanying drawings of this application are used to distinguish similar objects and are not necessarily used to describe a specific order or sequence. Furthermore, the terms "comprising" and "having," and any variations thereof, are intended to cover non-exclusive inclusion; for example, a process, method, system, product, or apparatus that comprises a series of steps or units is not necessarily limited to those steps or units explicitly listed, but may include other steps or units not explicitly listed or inherent to such process, method, product, or apparatus.
[0030] like Figure 1 As shown, a sanitary disinfection device for a pure water preparation system includes a reverse osmosis system 1, a CIP cleaning tank 2, a cleaning pump 3, a cleaning valve 4, a reflux valve 10, a one-way valve 11, a second outlet valve 12, and a CIP circuit assembly. The CIP circuit assembly includes an ultraviolet germicidal UV lamp 8, a first outlet valve 9, a third control valve 15, a fourth control valve 16, a first CIP control valve 17, a pure water storage tank 18, and a CIP hot water storage tank 20. The pure water storage tank 18 is connected to the third control valve 15 and the CIP hot water storage tank 20, respectively. The third control valve 15, the fourth control valve 16, and the first CIP control valve 17 are connected by a three-way valve. The IP control valve 17 is installed on the connecting pipeline between the pure water storage tank 18 and the CIP hot water storage tank 20. The third control valve 15, the UV sterilization lamp 8, and the first outlet valve 9 are connected in sequence. The first outlet valve 9 is connected to the CIP cleaning tank 2 and the one-way valve 11 respectively. The CIP cleaning tank 2, cleaning pump 3, cleaning valve 4, reverse osmosis system 1, second outlet valve 12, and one-way valve 11 are connected end to end to form a loop. The cleaning solution prepared by the CIP cleaning tank 2 is cleaned by the cleaning pump 3 and then by the cleaning valve 4 to clean the reverse osmosis system 1. After cleaning, it flows back to the CIP cleaning tank 2 for circulation cleaning through the second outlet valve 12 and the one-way valve 11. Using the device of this application, by modifying the UV outlet pipeline of the reverse osmosis system and adding control valves and three-way pipes, it can control the reverse osmosis system to prepare pure water to either a pure water system or a CIP hot water system. After disinfection of the reverse osmosis system, CIP cleaning is simultaneously performed on the pipelines from the reverse osmosis membrane to the pure water storage tank and from the reverse osmosis membrane to the CIP hot water pipeline. After cleaning and disinfection, the reverse osmosis system can produce clean pure water to the CIP hot water tank. CIP cleaning is then performed on the pure water system and other systems, thereby improving the hygienic quality of the pure water used in production and the CIP cleaning hygiene of the entire production system.
[0031] In a preferred embodiment of the first aspect of this utility model, the CIP cleaning tank 2 is provided with a drain pipe along its side, and a drain valve 6 is provided on the drain pipe for convenient draining.
[0032] In a preferred embodiment of the first aspect of this utility model, a water inlet pipe is provided on the connecting pipeline between the cleaning valve 4 and the reverse osmosis system 1, and a carbon filter water inlet 5 is provided on the water inlet pipe. A concentrate discharge pipeline is provided at the lower part of the reverse osmosis system 1, and a concentrate discharge valve 7 is provided on the concentrate discharge pipeline. The CIP circuit assembly also includes a first control valve 13 and a second control valve 14, which are provided on the connecting pipeline between the ultraviolet germicidal UV lamp 8 and the pure water storage tank 18.
[0033] It is important to note that this patent application, through multiple innovations including "cross-system pipeline integration + zoned cleaning structure + process logic optimization," not only solves problems such as cleaning blind spots, low efficiency, and pollution risks in existing technologies, but also achieves a technological breakthrough through unconventional system linkage design. Its core innovations are the cross-system application of T-junction pipes and the independent ultraviolet cleaning loop, which are structural solutions proposed by engineers based on in-depth analysis of system pain points.
[0034] Cleaning and disinfection procedures The explanation is as follows:
[0035] The cleaning solution prepared by the CIP cleaning tank 2 is used to clean the reverse osmosis system 1 by the force of the cleaning pump 3 and the cleaning valve 4. After cleaning, it flows back to the CIP cleaning tank 2 through the second outlet valve 12, the check valve 11, and the return valve 10 for circulation cleaning.
[0036] The first CIP control valve 17 connects to the third control valve 15 and the fourth control valve 16 respectively to clean the pipeline to the pure water storage tank 18. At the same time, the first control valve 13, the UV sterilization lamp 8, the first outlet valve 9, and the reflux valve 10 are opened to the CIP cleaning tank 2, and the drain valve 6 is opened to drain the wastewater. Simultaneously, the second outlet valve 12 is closed to prevent the hot cleaning solution from damaging the reverse osmosis membrane. After cleaning, the third control valve 15 is disconnected and the fourth control valve 16 is connected to clean the CIP hot water storage tank 20, effectively solving the problem of hygiene and disinfection of the reverse osmosis membrane equipment and pipelines before and after UV cleaning.
[0037] The preparation instructions for the clean CIP cleaning solution are as follows:
[0038] After cleaning, the reverse osmosis system uses activated carbon filter water (5) to pass through reverse osmosis system 1. Then, the second outlet valve (12), the first outlet valve (9), the first control valve (13), the third control valve (15), and the fourth control valve (16) are opened. The concentrate discharge valve (7) is also opened, and other valves are closed to produce clean pure water for use in the CIP hot water storage tank (20). This continuously provides CIP cleaning solution, avoids cross-contamination during the cleaning process, ensures effective disinfection of the system, and reduces potential quality risks.
[0039] In a preferred embodiment of the first aspect of this utility model, the first control valve 13 is located between the second control valve 14 and the third control valve 15. A second CIP control valve 19 is provided on the connecting pipeline between the pure water storage tank 18 and the CIP hot water storage tank 20. The first CIP control valve 17 is located between the second CIP control valve 19 and the CIP hot water storage tank 20. A return valve 10 is provided on the return pipeline connecting the reverse osmosis system 1 and the CIP cleaning tank 2. The return valve 10 is located between the first outlet valve 9 and the one-way valve 11.
[0040] As a preferred embodiment, a CIP cleaning pipe and valve can be added next to the crossover pipe to the hot water storage tank in the CIP room after UV sterilization. This pipe and valve can be connected separately to the pure water tee pipe or to the pure water to the hot water storage tank in the CIP room, thereby achieving cleaning and disinfection of the pipe to the pure water storage tank, the pipe before the UV sterilization lamp, and the pipe to the hot water storage tank in the CIP room.
[0041] The above embodiments are merely preferred embodiments of this utility model and should not be construed as limiting the scope of protection of this utility model. Any non-substantial changes and substitutions made by those skilled in the art based on this utility model shall fall within the scope of protection claimed by this utility model.
Claims
1. A sanitary disinfection device for a pure water preparation system, characterized in that, The system includes a reverse osmosis system, a CIP cleaning tank, a cleaning pump, cleaning valves, a return valve, a check valve, a second outlet valve, and a CIP circuit assembly. The CIP circuit assembly includes a UV sterilization lamp, a first outlet valve, a third control valve, a fourth control valve, a first CIP control valve, a pure water storage tank, and a CIP hot water storage tank. The pure water storage tank is connected to the third control valve and the CIP hot water storage tank, respectively. The third control valve, the fourth control valve, and the first CIP control valve are connected by a three-way valve. The first CIP control valve is located on the connecting pipeline between the pure water storage tank and the CIP hot water storage tank. The third control valve, the UV sterilization lamp, and the first outlet valve are connected in sequence. The first outlet valve is connected to the CIP cleaning tank and the check valve, respectively. The CIP cleaning tank, cleaning pump, cleaning valve, reverse osmosis system, second outlet valve, and check valve are connected end to end to form a loop. The cleaning solution prepared in the CIP cleaning tank is used by the cleaning pump to clean the reverse osmosis system through the cleaning valve. After cleaning, it flows back to the CIP cleaning tank for circulation cleaning through the outlet valve and check valve.
2. The sanitary disinfection device for a pure water preparation system as described in claim 1, characterized in that: The CIP cleaning tank is provided with a drain pipe along its side, and a drain valve is provided on the drain pipe.
3. The sanitary disinfection device for a pure water preparation system as described in claim 2, characterized in that: A water inlet pipe is installed on the connecting pipeline between the cleaning valve and the reverse osmosis system, and a carbon filter water inlet pipe is installed on the water inlet pipe.
4. The sanitary disinfection device for a pure water preparation system as described in claim 1, characterized in that: The lower part of the reverse osmosis system is equipped with a concentrate discharge pipeline, and a concentrate discharge valve is installed on the concentrate discharge pipeline.
5. The sanitary disinfection device for a pure water preparation system as described in claim 1, characterized in that: The CIP circuit assembly also includes a first control valve and a second control valve, which are located on the connecting pipeline between the ultraviolet germicidal UV lamp and the pure water storage tank.
6. The sanitary disinfection device for a pure water preparation system as described in claim 5, characterized in that: The first control valve is located between the second control valve and the third control valve.
7. The sanitary disinfection device for a pure water preparation system as described in claim 1, characterized in that: A second CIP control valve is installed on the connecting pipeline between the pure water storage tank and the CIP hot water storage tank.
8. The sanitary disinfection device for a pure water preparation system as described in claim 7, characterized in that: The first CIP control valve is located between the second CIP control valve and the CIP hot water storage tank.
9. The sanitary disinfection device for a pure water preparation system as described in claim 1, characterized in that: A reflux valve is installed on the reflux pipeline connecting the reverse osmosis system and the CIP cleaning tank.
10. The sanitary disinfection device for a pure water preparation system as described in claim 9, characterized in that: The reflux valve is located between the first outlet valve and the check valve.