Water purifier with scale removal
By installing a descaling device and a buffer tank in the water purifier, combined with solenoid valve control, the scale problem is solved, water quality is purified, equipment life is extended, and maintenance costs are reduced.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- GUANGDONG WATER SHIELD HEALTH TECH CO LTD
- Filing Date
- 2025-03-05
- Publication Date
- 2026-07-10
AI Technical Summary
Existing water purifiers produce scale during the heating process, which affects thermal efficiency and increases energy consumption. Scale is also difficult to remove, leading to a shortened equipment lifespan and increased maintenance costs.
Design a water purifier that includes an inlet, an outlet, a water supply device, a descaling device, and a heating device. The descaling device removes calcium and magnesium ions from the water, and the descaling operation is controlled by a buffer tank and a solenoid valve to ensure water purification and normal equipment operation.
It effectively reduces scale formation, ensures drinking water quality, extends equipment life, reduces maintenance frequency and costs, and prevents water pollution, ensuring that the output water is directly drinkable.
Smart Images

Figure CN224478014U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of water dispenser technology, specifically to a descaling water purifier. Background Technology
[0002] A water purifier, commonly known as a water filter, is a water treatment device that deeply filters and purifies water to improve drinking water quality and remove certain harmful substances. During the boiling process, a decomposition reaction occurs in the water, producing carbon dioxide and insoluble precipitates such as calcium carbonate and magnesium hydroxide. These precipitates form limescale, which adheres to the inner wall of the water heating device, affecting the heating system's thermal efficiency and increasing energy consumption. Furthermore, limescale is difficult to remove, requiring frequent cleaning, which increases maintenance frequency and costs. Improper descaling methods can also shorten the lifespan of the equipment. Utility Model Content
[0003] In view of the shortcomings of the existing technology, this utility model proposes a descaling water purifier that can remove scale from the water purifier.
[0004] The technical solution of this utility model is implemented as follows:
[0005] A descaling water purifier includes an inlet and an outlet, with a water supply device, a descaling device, and a heating device arranged sequentially between the inlet and the outlet for stable water supply.
[0006] Preferably, the water supply device is a buffer water tank.
[0007] Preferably, a filter is provided between the water inlet and the water supply device.
[0008] Preferably, the descaling device is detachably connected between the water supply device and the heating device.
[0009] Preferably, the buffer tank is equipped with a sterilization device.
[0010] Preferably, a water level sensor is installed inside the buffer tank.
[0011] Preferably, the water supply device is a zero-pressure valve.
[0012] Preferably, a sterilization device is provided between the water inlet and the water supply device.
[0013] Preferably, a water vapor separator is provided between the water outlet and the heating device, and the water vapor separator is connected to the outlet of the filter.
[0014] Preferably, a check valve is provided on the connecting pipeline between the water vapor separator and the filter.
[0015] Compared with the prior art, the beneficial effects of this utility model are:
[0016] (1) By setting up a descaling device, calcium, magnesium and other ions in the water are removed, thereby reducing the formation of scale and ensuring the quality of drinking water. Moreover, regular descaling can not only ensure the normal operation of the equipment, but also extend its service life. At the same time, by removing dissolved salts, colloids, bacteria and other impurities in the water, scale can be effectively prevented, ensuring that the water output from the outlet can be drunk directly.
[0017] (2) The water supply device is set before the descaling device to prevent the descaling liquid of the descaling device from entering and accumulating in the water supply device, thereby avoiding water pollution and avoiding affecting the normal operation of the water supply device and the life of the system. Attached Figure Description
[0018] Figure 1 This is a schematic diagram of the structure of Embodiment 1 of the present utility model;
[0019] Figure 2 This is a structural schematic diagram of Embodiment 2 of the present invention.
[0020] Attached image labels:
[0021] 1-Inlet; 2-Outlet; 3-Filter; 4-Heating device; 5-Descaling device; 6-Solenoid valve; 7-TDS detector; 8-Buffer tank; 81-UVC germicidal lamp; 82-Water level sensor; 9-Water vapor separator; 10-First inlet valve; 11-Second inlet valve; 12-Water pump; 13-Flow meter; 14-Overflow UV module; 15-Zero pressure valve; 16-Check valve. 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] In the description of this utility model, it should be noted that the terms "center," "upper," "lower," "left," "right," "vertical," "horizontal," "inner," and "outer," etc., indicating the orientation or positional relationship, are based on the orientation or positional relationship 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, unless otherwise expressly specified and limited, the terms "installed," "connected," and "linked" 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 according to the specific circumstances.
[0024] Example 1
[0025] See Figure 1 This embodiment provides a descaling water purifier, including an inlet 1 and an outlet 2. Between the inlet 1 and outlet 2, a water supply device, a descaling device 5, and a heating device 4 are sequentially arranged for stable water supply. In this embodiment, the water supply device is a buffer tank 8. The buffer tank 8, the descaling device 5, and the heating device 4 are sequentially arranged between the inlet 1 and outlet 2. The buffer tank 8 helps smooth the water flow and slows down changes in water flow velocity, thereby preventing pressure shocks caused by sudden changes in water flow and helping to protect the components in the system. Furthermore, the buffer tank 8 can balance the water flow, ensuring sufficient water storage in the system, thus providing a more stable and uniform water flow. The heating device 4 is used to provide warm water, ensuring that users obtain a suitable drinking water temperature. In this embodiment, the heating device 4 is an instant heater, which can heat water to the required temperature in a very short time, meeting the need for instant hot water use, providing great convenience, eliminating the need for preheating and waiting, saving time, and improving living efficiency.
[0026] The descaling device 5 removes calcium and magnesium ions from the water, thereby reducing the formation of scale and ensuring the quality of drinking water. Regular descaling not only ensures the normal operation of the equipment but also extends its service life. At the same time, by removing dissolved salts, colloids, bacteria and other impurities from the water, it can effectively prevent the formation of scale and ensure that the water output from the outlet 2 is directly drinkable and has a very good taste.
[0027] Furthermore, since the buffer tank 8 is located before the descaling device 5, it can prevent the descaling liquid from the descaling device 5 from entering and accumulating in the buffer tank 8, thereby avoiding water pollution and preventing any impact on the normal operation of the buffer tank 8 and the lifespan of the system. In addition, since the buffer tank 8 is located before the descaling device 5, it can prevent too little or too much water from mixing with the descaling liquid during the descaling operation, which helps to maintain the concentration of the mixed water and ensure the descaling effect.
[0028] Preferably, a filter 3 is provided between the inlet 1 and the buffer tank 8. The filter 3 removes impurities and particulate matter from the water through physical or chemical means to ensure preliminary water purification. In this embodiment, the filter 3 is a non-RO filter. Non-RO filters can adapt to different water quality conditions. For areas with good water quality, non-RO filters are sufficient to meet daily water needs. Moreover, RO filters generate a large amount of wastewater during the filtration process, while non-RO filters generate relatively less, which helps reduce water waste and environmental pollution. At the same time, the manufacturing and maintenance costs of non-RO filters are generally lower than those of RO filters, making them more competitive in price and suitable for consumers with limited budgets.
[0029] Preferably, the descaling device 5 is connected to the connecting pipeline between the buffer water tank 8 and the heating device 4 via a solenoid valve 6. The solenoid valve 6 can control the opening and closing of the connecting pipeline between the descaling device 5 and the buffer water tank 8 and the heating device 4. When descaling is needed, the connecting pipeline between the descaling device 5 and the buffer water tank 8 and the heating device 4 is connected; when descaling is not needed, the connection between the descaling device 5 and the buffer water tank 8 and the heating device 4 is disconnected. This can improve the flexibility of descaling, avoid overuse of the descaling device 5 and over-treatment of water, and reduce unnecessary energy consumption.
[0030] A descaling device 5 is installed between the buffer tank 8 and the heating device 4, and a solenoid valve 6 is installed. The solenoid valve 6 connects the descaling device 5 with the connecting pipe between the buffer tank 8 and the heating device 4. The descaling device 5 can be a descaling tank (or a descaling-specific filter element). The descaling liquid (or the treatment liquid in the descaling-specific filter element) in the descaling tank begins to flow into the connecting pipe between the buffer tank 8 and the heating device 4, and mixes with the tap water. The mixed water flows to the downstream water circuit of the water purifier, and then enters the heating device 4. The heating device 4 is activated to heat the water to provide warm water. During the heating process, the chemical components in the descaling liquid dissolve the scale, including any scale that may exist on the inner wall of the heating device 4. The dissolved scale and other impurities are discharged from the system outlet, ensuring that the water quality in the system is further purified.
[0031] Preferably, the descaling device 5 is detachably connected between the buffer water tank 8 and the heating device 4, which facilitates the installation and disassembly of the descaling device 5 and is beneficial to the maintenance of the descaling device 5.
[0032] Preferably, a TDS detector 7 is installed between the filter 3 and the buffer tank 8. The TDS detector 7 is responsible for detecting the TDS value of the water after preliminary filtration by the filter 3. The TDS value mainly reflects the concentration of ions such as Ca2+, Mg2+, Na+, and K+ in the water, and has a good correlation with the hardness and conductivity of the water. The working state of the descaling device is adjusted according to the ion concentration: when the TDS value measured by the TDS detector 7 is high, the solenoid valve 6 connects the connecting pipe between the descaling device 5 and the buffer tank 8 and the heating device 4; when the TDS value is low, the descaling device 5 does not need to be activated. By using the TDS detector 7 in conjunction with the solenoid valve 6, over-treatment of the water is further avoided.
[0033] Preferably, the buffer tank 8 is equipped with a sterilization device, particularly a UV sterilization device, which has multiple advantages such as killing microorganisms, improving water quality, preventing infectious diseases, maintaining equipment performance, extending service life, being environmentally friendly and energy-saving, and having strong adaptability. In this embodiment, the sterilization device is a UVC germicidal lamp 81 installed in the buffer tank 8.
[0034] Preferably, a water level sensor 82 is installed inside the buffer tank 8. The water level sensor 82 can monitor the water level changes in the buffer tank 8 in real time and transmit this information to the control system. When the water level is lower or higher than the preset safety range, the water level sensor 82 will issue an alarm or trigger a corresponding control mechanism in a timely manner, thereby ensuring the stable operation of the system. When the water level is lower than the set value, the water level sensor 82 will send a signal, and the control system will replenish water to the buffer tank 8; when the water level is higher than the set value, the water level sensor 82 will send a stop water supply signal, which can effectively save energy and reduce operating costs. In this embodiment, a first inlet valve 10 is provided between the inlet 1 and the filter 3. When the water level is higher than the set value, closing the first inlet valve 10 can stop the water supply to the buffer tank 8. Moreover, the first inlet valve 10 can control the pressure of the water flow into the filter 3, preventing damage to the internal components of the filter or causing leakage due to excessive water pressure. Preferably, a second inlet valve 11 is provided between the filter 3 and the buffer tank 8. Closing the second inlet valve 11 stops the water supply to the buffer tank 8. Furthermore, the second inlet valve 11 controls the pressure of the water flowing into the buffer tank 8, which is beneficial for water flow balance. In addition, this embodiment provides a first inlet valve 10 between the inlet 1 and the filter 3, and a second inlet valve 11 between the filter 3 and the buffer tank 8. When the first inlet valve 10 is open and the second inlet valve 11 is closed, the filter 3 can continue to perform preliminary water purification. This ensures that filtered water can be provided promptly when the second inlet valve 11 is open, reducing waiting time and improving work efficiency.
[0035] Preferably, a water vapor separator 9 is provided between the water outlet 2 and the heating device 4. The water vapor separator 9 is used to prevent water vapor formed during the heating process from flowing with the water to the final water outlet. The water vapor separator 9 is connected to the outlet of the filter 3, so that filtered water can be directly supplied to the water vapor separator 9. Cold water and hot water are mixed to obtain water at a suitable temperature, realizing the regulation of the outlet water temperature and providing users with water at different temperatures. Moreover, the filtered water can rinse the water vapor separator 9 to ensure its cleanliness.
[0036] In this embodiment, a water pump 12 and a flow meter 13 are sequentially arranged between the descaling device 5 and the heating device 4. The water pump 12 is used to pump water to the heating device 4, and the flow meter 13 is used to count the water flow. Specifically, by using the operating time of the flow meter or water pump to count the total flow, an effective management and maintenance strategy is to remind the user and perform descaling of the water heating device when the total flow reaches a certain value. The relevant technical effects and operating procedures are as follows: 1. Accurate descaling measurement: By accumulating the operating time of the flow meter or water pump, the system can accurately calculate the total flow through the water purifier, thereby triggering the descaling operation at an appropriate time. 2. Regular maintenance reminder: When the total flow reaches a set threshold, the system can automatically trigger a reminder to prompt the user to perform descaling maintenance on the water heating device. This helps prevent scale buildup and maintain the long-term performance of the system. 3. Extended equipment life: Timely descaling maintenance can effectively extend the life of the water heating device and other components, reduce maintenance costs, and improve equipment reliability. 4. Water quality protection: Through regular descaling operations, the inside of the water heating device can be kept clean, avoiding the adverse effects of scale on water quality and equipment performance. Operating Procedures: 1. Flow Meter or Pump Operating Time Recording: The system monitors the flow rate of water passing through the water purifier in real time by using a flow meter or recording the operating time of the water pump. 2. Total Flow Statistics: The system continuously monitors and updates the total flow rate value, accumulating and calculating the total flow rate passing through the water purifier. 3. Setting a Descaling Reminder Threshold: The user or system sets a total flow rate threshold. When the accumulated total flow rate reaches or exceeds this value, a descaling reminder is triggered. 4. Reminding the Operator to Perform Descaling: The system issues a reminder, notifying the user to perform descaling operations on the water heating device through the display screen, sound, or other prompts. 5. Descaling Operation: The user performs descaling operations on the water heating device according to the instructions provided by the system to remove scale and maintain the equipment. 6. Resetting the Counter: After completing the descaling operation, the system may require user confirmation and reset the flow meter or operating time recorder to begin a new statistical cycle.
[0037] Example 2
[0038] See Figure 2This embodiment provides a descaling water purifier. Unlike Embodiment 1, in this embodiment, the water supply device is a zero-pressure valve 15. The zero-pressure valve 15 is used to regulate water pressure, ensuring a smooth water flow through the pipes. The zero-pressure valve can instantly reduce the water pressure to zero, allowing water to flow smoothly and safely within the closed pipes, avoiding the "pipe bursting" problem caused by excessive water pressure. Simultaneously, the use of the zero-pressure valve reduces the risk of the heating device burning out due to water pressure fluctuations, thereby extending the equipment's lifespan. The use of the zero-pressure valve eliminates the need for a water tank, thus reducing the risk of secondary water contamination. Furthermore, the zero-pressure valve ensures water flow within the closed pipes, further enhancing water safety.
[0039] Preferably, a filter 3 is provided between the water inlet 1 and the zero-pressure valve 15. The filter 3 removes impurities and particulate matter from the water through physical or chemical means to ensure preliminary purification of the water. In this embodiment, the filter 3 is a non-RO filter.
[0040] Preferably, a sterilization device is provided between the water inlet 1 and the water supply device. In this embodiment, the sterilization device is a current-carrying UV module 14. The UV module 14 utilizes ultraviolet irradiation technology and controls the current and voltage to stabilize the output of the light source, ensuring the intensity and stability of ultraviolet radiation. This effectively kills bacteria, viruses, parasites, and other microorganisms in the water, thereby improving water quality and ensuring the safety of drinking water. Compared to the sterilization device in Embodiment 1, this method helps reduce the energy consumption of ultraviolet output and extends its service life.
[0041] In this embodiment, a check valve 16 is provided on the connecting pipe between the water vapor separator 9 and the filter 3, which can prevent the hot steam of the water vapor separator 9 from flowing back into the filter 3, thereby ensuring the safe use of the filter 3.
[0042] The above are merely preferred embodiments of the present utility model and are not intended to limit the present utility model. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model shall be included within the protection scope of the present utility model.
Claims
1. A descaling water purifier, characterized in that, It includes an inlet and an outlet, and a water supply device, a descaling device and a heating device are sequentially provided between the inlet and the outlet for stable water supply; The water supply device is a buffer water tank; The descaling device connects the buffer tank and the heating device via a solenoid valve. The solenoid valve controls the opening and closing of the connection between the descaling device and the buffer tank and heating device. When descaling is needed, the connection between the descaling device and the buffer tank and heating device is opened; when descaling is not needed, the connection between the descaling device and the buffer tank and heating device is closed.
2. The descaling water purifier according to claim 1, characterized in that, A filter is provided between the water inlet and the water supply device.
3. The descaling water purifier according to claim 2, characterized in that, A TDS detector is installed between the filter and the buffer tank. The TDS detector measures the TDS value of the water after preliminary filtration. The TDS value reflects the calcium content in the water. 2+ Mg 2+ Na + K + The ion concentration is adjusted, and the working status of the descaling device is adjusted according to the ion concentration.
4. The descaling water purifier according to claim 1, characterized in that, The descaling device is detachably connected between the water supply device and the heating device.
5. The descaling water purifier according to claim 2, characterized in that, The buffer tank is equipped with a sterilization device.
6. The descaling water purifier according to claim 2, characterized in that, The buffer tank is equipped with a water level sensor.
7. The descaling water purifier according to claim 1, characterized in that, The water supply device is a zero-pressure valve.
8. The descaling water purifier according to claim 7, characterized in that, A sterilization device is provided between the water inlet and the water supply device.
9. The descaling water purifier according to claim 3, characterized in that, A water vapor separator is provided between the water outlet and the heating device, and the water vapor separator is connected to the outlet of the filter.
10. The descaling water purifier according to claim 9, characterized in that, A check valve is provided on the connecting pipeline between the water vapor separator and the filter.
11. The descaling water purifier according to claim 1, characterized in that, A water pump and a flow meter are installed sequentially between the descaling device and the heating device. The water pump is used to pump water to the heating device, and the flow meter is used to count the water flow.