A high pressure heating device for a water purifier

Abstract

This invention provides a high-pressure heating device for water purifiers, comprising a sealed tank, an inlet pipe, an outlet pipe, a heating element, a baffle plate, a temperature sensor, a level switch, and a vent pipe. By combining a sealed high-pressure heating method with a buffer cavity design, it solves the problem of insufficient boiling point in traditional water purifiers due to altitude and pressure limitations, raising the boiling point of water to 100℃ or higher, achieving true boiling at high temperatures. The cavity above the tank absorbs the volume of liquid expansion, reducing long-term pressure and improving sealing reliability. Multi-point monitoring and intelligent control ensure precise regulation of water temperature, level, and pressure, providing users with instant boiling water and enhancing the user experience. This invention has a reasonable structure, is safe and reliable, and is suitable for various water purifier products.

Description

Technical Field

[0001] This utility model relates to a high-pressure heating device for a water purifier. Background Technology

[0002] In the field of modern water purification equipment, water purifiers with heating functions have become essential equipment in homes and commercial establishments. Currently, water purifiers on the market are mainly divided into two types: storage-type and instantaneous-type. Both of these heating methods generally have certain limitations in hot water supply. Specifically, in the heating process of existing water purifiers, the hot water temperature can usually only reach ≤95℃, making it difficult to achieve a true high-temperature "boiling" effect.

[0003] This limitation stems primarily from several factors: First, altitude significantly affects the boiling point of water. In high-altitude areas, lower air pressure causes the boiling point of water to drop, making it impossible to reach temperatures of 100°C or even higher. Second, the design of existing heating devices is often limited by their temperature resistance and pressure bearing capacity, making it difficult to operate stably under high temperature and high pressure environments. Furthermore, traditional heating devices lack effective pressure control and buffering mechanisms during the heating process, which can easily lead to excessive internal pressure due to liquid expansion, thereby affecting the sealing performance and service life of the equipment. Summary of the Invention

[0004] This utility model discloses a high-pressure heating device for water purifiers, which aims to solve the problems mentioned above.

[0005] The present invention adopts the following solution:

[0006] A high-pressure heating device for a water purifier includes: a sealed tank, an inlet pipe, and an outlet pipe. A heating pipe for heating water within the sealed tank is disposed within the tank. The outlet end of the outlet pipe is located at the top of the tank interior. The outlet end forms a water level line within the tank, and a cavity containing air is formed above the water level line within the tank. When the heating pipe heats the water within the tank, it increases the pressure within the tank, thereby increasing the boiling point of the water.

[0007] In this embodiment of the present invention, the water outlet end of the water inlet pipe is located at the lower part of the tank body, and the water outlet end of the water inlet pipe is located below the water outlet end of the water outlet pipe.

[0008] In this embodiment of the present invention, the outlet end of the water inlet pipe is located at the bottom of the tank body, and a baffle plate is configured at the bottom of the tank body. The water flowing out from the water inlet pipe can impact the lower end surface of the baffle plate, so that the water flow spreads to the surrounding area.

[0009] In this embodiment of the invention, the heating tube is wound around the outer periphery of the baffle plate.

[0010] In this embodiment of the invention, an empty tube is also included, which can be placed inside the tank, and a temperature sensor and a liquid level sensor are configured on the empty tube.

[0011] In this embodiment of the present invention, a first liquid level sensor and a second liquid level sensor are arranged vertically on the empty pipe, with the first liquid level sensor located below the liquid level line.

[0012] In this embodiment of the present invention, a first temperature sensor and a second temperature sensor are arranged vertically on the empty pipe, and the first liquid level sensor and the second liquid level sensor are arranged between the first temperature sensor and the second temperature sensor.

[0013] In this embodiment of the utility model, an electronic control board is also included, which can be electrically connected to the first temperature sensor, the second temperature sensor, the first liquid level sensor, and the second liquid level sensor.

[0014] In this embodiment of the present invention, a vent pipe is also provided above the tank body, which can be connected to the inside of the tank body, and a solenoid valve is also provided on the vent pipe.

[0015] In this embodiment of the invention, the solenoid valve can be electrically connected to the electronic control board.

[0016] This utility model provides a high-pressure heating device for water purifiers, which has the following beneficial effects: First, by using a sealed high-pressure heating method, the boiling point of water is raised to 100℃ or higher, solving the limitation of boiling point caused by altitude and achieving high-temperature "true boiling". Second, the design of the cavity above the tank effectively absorbs the volume of liquid expansion during heating, reducing the long-term pressure state of the tank during heating and heat preservation, and improving the sealing reliability and service life of the tank. Third, through multi-point monitoring by temperature sensors and liquid level switches, combined with intelligent control by the electronic control board, precise control of water temperature, liquid level, and pressure inside the tank is achieved. Finally, through the high-temperature sealed energy storage design, boiling water can be provided to users instantly without waiting, improving the user experience. In addition, through reasonable structural design and component configuration, the device is ensured to operate stably under high-pressure environment, avoiding safety hazards caused by excessive pressure. Attached Figure Description

[0017] To more clearly illustrate the technical solution of this utility model, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0018] Figure 1This is a schematic diagram of the inlet and outlet water pipes above the tank in an embodiment of this utility model.

[0019] Figure 2 This is a schematic diagram of the inlet and outlet water pipes below the tank in an embodiment of this utility model. Detailed Implementation

[0020] To make the objectives, technical solutions, and advantages of the embodiments of this utility model clearer, the technical solutions of the embodiments of this utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this utility model, not all embodiments.

[0021] Referring to the accompanying drawings, a high-pressure heating device for a water purifier is disclosed. The tank 1, as the core component, is made of metal, preferably stainless steel, to ensure durability and sealing under high temperature and pressure conditions. The tank 1 is cylindrical, with at least one cylindrical wall formed around its central axis. This design not only enhances structural strength but also facilitates the installation and maintenance of internal components. The tank 1 is equipped with an inlet pipe 2 and an outlet pipe 3. The positions of the inlet pipe 2 and outlet pipe 3 are unrestricted and can be either above or below; see the schematic diagrams of two specific embodiments.

[0022] The outlet of the water inlet pipe 2 is located inside the lower part of the tank 1, specifically near the bottom of the tank 1. The design of the water inlet pipe 2 allows the water flow to directly impact the lower surface of the baffle plate 5, thereby spreading it outwards and preventing it from directly impacting the heated water upwards. This ensures that the low-temperature water and high-temperature water are mixed in layers, preventing the low-temperature water from prematurely contacting the high-temperature water above. The baffle plate 5 can be made of metal and is fixed to the bottom area inside the tank 1. Its main function is to guide the water flow to be evenly distributed. A heating tube 4 is wrapped around the outer periphery of the baffle plate 5. The working principle of the heating tube 4 can be based on electrothermal conversion. When current passes through the heating tube 4, the generated heat is rapidly conducted to the water in the tank 1, causing the water temperature to gradually rise. This heating tube is similar to existing technology and will not be described in detail again.

[0023] The inlet of the water outlet pipe 3 is located at the top inside the tank 1, maintaining a certain height difference from the end face of the tank 1. This height difference design creates a cavity at the top inside the tank 1, which is filled with air to absorb the volume of liquid expansion during heating, thus acting as a buffer. The height of the inlet of the water outlet pipe 3 defines the liquid level line A of the water outlet inside the tank 1. The cavity above the liquid level line can effectively reduce the pressure state of the tank 1 during heating, while simultaneously increasing the boiling point of water through a closed, high-pressure environment. The pressure inside the tank 1 increases with the temperature, eventually raising the boiling point of water to 105℃ or higher, solving the limitation of altitude on boiling point and achieving high-temperature "true boiling".

[0024] To achieve accurate monitoring of water temperature, level, and pressure within tank 1, an empty pipe 10 is installed inside tank 1. The empty pipe 10 is made of metal and fixed inside tank 1. A first temperature sensor 6, a second temperature sensor 7, a first level switch 8, and a second level switch 9 are installed on it. The first temperature sensor 6 is located at the high level position of the empty pipe 10 and is used to monitor the water temperature in the upper region of tank 1. The second temperature sensor 7 is located at the low level position of the empty pipe 10 and is used to monitor the water temperature in the lower region of tank 1. These two temperature sensors ensure that the water temperature exceeds 100°C after heating, and also determine the required heating temperature. Because the boiling point of water may exceed the required temperature (e.g., 105°C) under high pressure inside the tank, and since the heating element is located at the bottom, the water temperature at the bottom will be higher than the temperature at the top. Therefore, when the water temperature at the top reaches the set value (105°C), the control board can stop the heating element from heating. The first liquid level switch 8 is located below the liquid level line and is used to detect whether the liquid level in tank 1 is lower than the set value. Only when the liquid level is higher than the first liquid level switch can the electronic control board control the heating element to heat the tank. The second liquid level switch 9 is located below the empty pipe and is used to detect whether the liquid level in tank 1 is lower than the set value. When the liquid level in the tank is lower than the second liquid level switch, the electronic control board can control the entire machine to add water to the tank. These sensors and switches are connected to the electronic control board through wires to transmit monitoring data in real time, ensuring the safety and stability of the device operation.

[0025] The control board (not shown in the figure) is the core control unit and can be a PCB circuit board. This control board can be placed outside the tank, inside the entire water purifier. It receives signals from the first temperature sensor 6, the second temperature sensor 7, the first liquid level switch 8, and the second liquid level switch 9, and controls the working state of the heating element 4 according to preset logic. Furthermore, the control board also achieves precise control of the pressure inside the tank 1 by dynamically adjusting the opening and closing state of the vent pipe 11.

[0026] A vent pipe 11 is installed on top of the tank body 1, connecting to the interior of the tank body 1. This vent pipe 11 can be used to regulate the amount of air inside the tank body 1 during water addition, thereby controlling the boiling point of the water. A solenoid valve 12 is installed on the vent pipe 11, electrically connected to the electronic control board, and used to control the opening and closing of the vent pipe 11. Simultaneously, this vent pipe can also serve as a pressure relief channel. When the pressure inside the tank body 1 exceeds a preset value, the electronic control board sends a command to open the solenoid valve 12, releasing some gas to reduce the pressure; when the pressure inside the tank body 1 falls below the preset value, the electronic control board sends a command to close the solenoid valve 12, maintaining a stable pressure inside the tank body 1. This design ensures the safe operation of the tank body 1 under different working conditions, avoiding safety hazards caused by excessive pressure. Alternatively, the vent pipe can be omitted.

[0027] In practical applications, the operation of this device is as follows: First, the water inlet pipe 2 is connected to a water source, and the water flows through the inlet pipe 2 into the vicinity of the bottom of the tank 1, impacting the lower end face of the baffle plate 5 and spreading outwards. Subsequently, the water flow gradually rises within the tank 1 until it reaches the height of the inlet of the outlet pipe 3. At this time, the cavity above the liquid level line in the tank 1 contains air, which is used to absorb the volume of liquid expansion during the heating process. After the heating tube 4 is activated, the water temperature in the tank 1 gradually increases. Since the tank 1 is in a sealed state, the internal pressure increases accordingly, and the boiling point of water is raised, reaching 105℃ or higher. During this process, the first temperature sensor 6 and the second temperature sensor 7 monitor the water temperature in different areas of the tank 1 in real time, while the first liquid level switch 8 and the second liquid level switch 9 monitor the changes in the liquid level in the tank 1 to control whether to add water or perform heating. Based on the feedback signals from the sensors and switches, the electronic control board can also dynamically adjust the power of the heating tube 4 and the opening and closing state of the vent pipe 11 to ensure the balance of temperature, liquid level, and pressure within the tank 1.

[0028] When a user needs hot water, the high-temperature water in tank 1 flows out through outlet pipe 3 for immediate use. Because the water in tank 1 is always maintained at a high temperature and pressure, there is no need to wait for heating time, significantly improving the user experience. Furthermore, this device, through its rational structural design and intelligent control methods, ensures stable operation under high pressure, avoiding safety hazards caused by excessive pressure. The entire device is designed with practicality, safety, and reliability in mind, making it suitable for various water purifier products and possessing broad application prospects.

[0029] The water outlet pipe located at the top of the tank has a certain height difference from the upper surface of the tank's interior. This creates a cavity above the tank when water is flowing through the inlet pipe, allowing air to escape and preventing the tank from completely filling. When the liquid inside the tank is heated, its volume expands. This cavity acts as an energy-absorbing buffer, ensuring the tank remains under low pressure during heating and insulation. This cavity design maintains a certain pressure within the tank, providing a buffer while increasing the internal pressure and raising the boiling point of the water, enabling boiling at temperatures exceeding 100°C (or higher).

[0030] In summary, this invention, through a closed-loop high-pressure heating method combined with a buffer cavity design and an intelligent control system, overcomes the technical shortcomings of traditional water purifiers, which suffer from insufficient boiling point due to limitations in altitude and pressure resistance. The device, through its rational structural layout and precise operational control, achieves efficient, safe, and reliable high-temperature heating, providing users with instant boiling water while significantly enhancing the product's market competitiveness and user satisfaction.

[0031] The foregoing description illustrates and describes preferred embodiments of the present invention. As previously stated, it should be understood that the present invention is not limited to the forms disclosed herein and should not be construed as excluding other embodiments. It can be used in various other combinations, modifications, and environments, and can be altered within the scope of the inventive concept described herein through the foregoing teachings or related technical or knowledge. Any modifications and variations made by those skilled in the art that do not depart from the spirit and scope of the present invention should be within the protection scope of the appended claims.

Claims

1. A high-pressure heating device for a water purifier, characterized in that, include: A sealed tank, an inlet pipe and an outlet pipe, and a heating pipe for heating the water inside the tank. The outlet end of the water pipe is located at the top inside the tank; the outlet end of the water pipe forms a water level line inside the tank, and a cavity is formed inside the tank above the water level line, which is filled with air; when the heating pipe heats the water inside the tank, it can increase the pressure inside the tank, thereby increasing the boiling point of the water.

2. The high-pressure heating device for a water purifier according to claim 1, characterized in that, The water inlet pipe has its outlet end located at the bottom of the tank body, and the water outlet end of the water inlet pipe is located below the water outlet end of the water outlet pipe.

3. A high-pressure heating device for a water purifier according to claim 2, characterized in that, The outlet of the inlet pipe is located at the bottom of the tank. A baffle plate is installed at the bottom of the tank. The water flowing out of the inlet pipe can impact the lower surface of the baffle plate, so that the water flow spreads to the surrounding area.

4. A high-pressure heating device for a water purifier according to claim 3, characterized in that, The heating tube is wrapped around the outer periphery of the baffle plate.

5. A high-pressure heating device for a water purifier according to any one of claims 1-4, characterized in that, It also includes an empty pipe that can be placed inside the tank, and the empty pipe is equipped with a temperature sensor and a liquid level sensor.

6. A high-pressure heating device for a water purifier according to claim 5, characterized in that, The empty pipe is equipped with a first liquid level sensor and a second liquid level sensor distributed vertically, with the first liquid level sensor located below the liquid level line.

7. A high-pressure heating device for a water purifier according to claim 6, characterized in that, The empty pipe is equipped with a first temperature sensor and a second temperature sensor distributed vertically, and the first liquid level sensor and the second liquid level sensor are disposed between the first temperature sensor and the second temperature sensor.

8. A high-pressure heating device for a water purifier according to claim 7, characterized in that, It also includes an electronic control board, which can be electrically connected to the first temperature sensor, the second temperature sensor, the first liquid level sensor, and the second liquid level sensor.

9. A high-pressure heating device for a water purifier according to claim 8, characterized in that, A vent pipe is also installed above the tank body, which can be connected to the inside of the tank body, and a solenoid valve is also installed on the vent pipe.

10. A high-pressure heating device for a water purifier according to claim 9, characterized in that, The solenoid valve can be electrically connected to the electronic control board.

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