Water boiler with rapid cooling function

Abstract

The utility model provides a kind of boiled water device with quick cooling function, including heating water tank, heat exchange assembly, warm water outlet, cold water inlet, and first boiled water outlet, second boiled water outlet and water inlet are equipped on heating water tank;Cold water inlet is communicated with water inlet by heat exchange assembly, and warm water outlet is communicated with second boiled water outlet by heat exchange assembly, to make the hot water exported by second boiled water outlet and the cold water imported by cold water inlet carry out heat exchange in heat exchange assembly, and warm water outlet exports warm water.The utility model discloses a kind of boiled water device, cold water inlet, heat exchange assembly, heating water tank and warm water outlet are set, cold water of cold water inlet enters heating water tank heating by heat exchange assembly, boiling water in heating water tank reaches warm water outlet by heat exchange assembly, cold water of cold water inlet and boiling water in heating water tank carry out heat exchange in heat exchange assembly, and then reduce boiling water temperature, to realize the quick cooling of boiling water, and then user can obtain and use warm water in short time.

Description

Technical Field

[0001] This utility model relates to the field of water boiler technology, and in particular to a water boiler with a rapid cooling function. Background Technology

[0002] Most existing water dispensers only have a heating function, and users need to wait for the boiling water to cool naturally to a suitable temperature (such as 50°C) before they can use it, which takes a long time. In order to shorten the waiting time, the catering industry often uses mineral water directly as raw material, which leads to a significant increase in operating costs. In addition, some businesses use unboiled tap water directly, which poses hygiene and safety hazards and violates food safety regulations. A small number of water dispensers have a boiling water cooling function, but these water dispensers mostly use an additional cooling module, which has high energy consumption and a complex structure.

[0003] Therefore, further improvements are necessary. Utility Model Content

[0004] The purpose of this invention is to provide a water heater with a rapid cooling function that is simple in structure, has a short cooling time, good cooling effect, good user experience, and strong practicality, so as to overcome the shortcomings of the prior art.

[0005] A water heater with rapid cooling function designed for this purpose is characterized by: including a heating water tank, a heat exchange assembly, a warm water outlet, and a cold water inlet; the heating water tank is provided with a first hot water outlet, a second hot water outlet, and a water inlet.

[0006] The cold water inlet is connected to the water inlet through a heat exchange assembly, and the warm water outlet is connected to the second hot water outlet through the heat exchange assembly, so that the hot water output from the second hot water outlet and the cold water input from the cold water inlet can exchange heat in the heat exchange assembly, and the warm water outlet can output warm water.

[0007] The heat exchange assembly includes an inner heat exchange tube and an outer heat exchange tube. The outer heat exchange tube is sleeved on the outside of the inner heat exchange tube. The cold water inlet, the inner heat exchange tube, and the inlet of the heating water tank are connected in sequence. The second hot water outlet, the outer heat exchange tube, and the warm water outlet are connected in sequence.

[0008] The internal and external heat exchange tubes are wavy in shape, and the heat exchange assembly is arranged in a meandering pattern.

[0009] The heat exchange assembly, warm water outlet, and cold water inlet are located outside the heating water tank.

[0010] The first hot water outlet is equipped with a hot water solenoid valve for opening or closing the first hot water outlet, the warm water outlet is equipped with a warm water solenoid valve for opening or closing the warm water outlet, and the cold water inlet is equipped with an inlet solenoid valve for opening or closing the cold water inlet.

[0011] The lower part of the heating water tank is equipped with a heating element for heating water. The heating element extends into the interior of the heating water tank. The interior of the heating water tank is also equipped with a temperature probe for detecting the water temperature. The first hot water outlet is located above the temperature probe.

[0012] The heating water tank is equipped with several staggered baffles to create a meandering water flow channel.

[0013] The upper part of the heating water tank is equipped with a low water level probe for detecting low water level, and the top of the heating water tank is equipped with a second high water level probe for detecting high water level and warning water level, and a warning water level probe.

[0014] The water inlet of the heating water tank is located at the bottom of the heating water tank, the first hot water outlet is located at the top of the heating water tank, and the second hot water outlet is located at the top of the heating water tank.

[0015] The top of the heating water tank is equipped with a pressure relief port, which is connected to the inside of the heating water tank, and a pressure relief valve is installed on the pressure relief port.

[0016] This utility model's water dispenser is designed with a cold water inlet, a heat exchange assembly, a heating water tank, and a warm water outlet. Cold water from the cold water inlet enters the heating water tank through the heat exchange assembly and is heated. Boiling water in the heating water tank then reaches the warm water outlet through the heat exchange assembly. The cold water from the cold water inlet and the boiling water in the heating water tank exchange heat in the heat exchange assembly, thereby reducing the temperature of the boiling water and achieving rapid cooling (to 50±3℃ within 10 minutes). This allows users to obtain and use warm water in a short time. In addition, this structure does not require an additional refrigeration module, so energy consumption is basically not increased. Moreover, the structure is simple and is particularly suitable for the catering industry's need for rapid preparation of warm water. Attached Figure Description

[0017] Figure 1 This is a schematic diagram of the water circuit of a water heater in one embodiment of this utility model.

[0018] Figure 2 This is an internal structural diagram of the heat exchange assembly in one embodiment of the present invention. Detailed Implementation

[0019] The present invention will be further described below with reference to the accompanying drawings and embodiments.

[0020] See Figures 1-2 This water heater with rapid cooling function includes a heating water tank 3, a heat exchange assembly 2, a warm water outlet 8, and a cold water inlet 1. The heating water tank 3 is provided with a first hot water outlet 6, a second hot water outlet 7, and a water inlet 5.

[0021] The cold water inlet 1 is connected to the water inlet 5 through the heat exchange assembly 2, and the warm water outlet 8 is connected to the second hot water outlet 7 through the heat exchange assembly 2, so that the hot water output from the second hot water outlet 7 and the cold water input from the cold water inlet 1 can exchange heat in the heat exchange assembly 2, and the warm water outlet 8 can output warm water.

[0022] The heat exchange assembly 2 includes an inner heat exchange tube 9 and an outer heat exchange tube 10. The outer heat exchange tube 10 is sleeved on the outside of the inner heat exchange tube 9. The cold water inlet 1, the inner heat exchange tube 9, and the inlet 5 of the heating water tank 3 are connected in sequence. The second boiling water outlet 7, the outer heat exchange tube 10, and the warm water outlet 8 are connected in sequence. When the water heater is working, external water reaches the inner heat exchange tube 9 through the cold water inlet 3, and then enters the heating water tank 3 through the water guide pipe 21 and the inlet 5 for heating and boiling. After the heating water tank 3 is full, the boiling water flows out through the second boiling water outlet. 7 enters the external heat exchange tube 10 and flows through the external heat exchange tube 10 to the warm water pipe 4. The boiling water in the external heat exchange tube 10 and the cold water in the internal heat exchange tube 9 exchange heat to reduce the temperature of the boiling water and preheat the cold water so that the boiling water becomes warm water. The warm water can be taken out through the warm water outlet 8. In addition, the boiling water in the heating water tank 3 can be taken out through the first boiling water outlet 6. This structure adopts an internal / external double-layer heat exchange tube design. The inner tube 9 carries cold water and the outer tube 10 carries boiling water. Efficient heat exchange is achieved through counter-current flow.

[0023] The inner heat exchange tube 9 and the outer heat exchange tube 10 are wavy in shape, which can increase the heat exchange area and improve the cooling efficiency. The heat exchange assembly 2 is arranged in a meandering manner, which can reduce the water flow velocity and enable the boiling water in the outer heat exchange tube 10 and the cold water in the inner heat exchange tube 9 to exchange heat fully.

[0024] The heat exchange assembly 2, the warm water outlet 8, and the cold water inlet 1 are externally located in the heating water tank 3.

[0025] The first hot water outlet 6 is equipped with a hot water solenoid valve 11 for opening or closing the first hot water outlet 6, the warm water outlet 8 is equipped with a warm water solenoid valve 12 for opening or closing the warm water outlet 8, and the cold water inlet 1 is equipped with an inlet solenoid valve 13 for opening or closing the cold water inlet 1; the hot water solenoid valve 11 independently controls the boiling water outlet (directly used), and the warm water solenoid valve 12 independently controls the warm water outlet 8 (after cooling treatment), realizing dual-mode water output.

[0026] The lower part of the heating water tank 3 is provided with a heating element 14 for heating water. The heating element 14 is a quartz tube and extends into the interior of the heating water tank 3. The interior of the heating water tank 3 is also provided with a temperature probe 15 for detecting the water temperature. The first hot water outlet 6 is located above the temperature probe 15. The temperature probe 15 detects the water temperature inside the heating water tank 3, thereby controlling the heating power of the heating element 14 to control the water temperature inside the heating water tank 3, and thus controlling the outlet water temperature of the first hot water outlet 6.

[0027] The heating water tank 3 is equipped with several staggered baffles 16 to form a meandering water flow channel 17 inside the heating water tank 3, which can increase the contact time between the heating element 14 and the water and improve the heating effect.

[0028] The upper part of the heating water tank 3 is equipped with a low water level probe 18 for detecting low water levels in the heating water tank 3. The top of the heating water tank 3 is equipped with a second high water level probe 19 for detecting high water levels and a warning water level probe 20 for detecting high water levels and warning water levels in the heating water tank 3. The low water level probe 18 detects the minimum safe water level to prevent dry burning. When the water level is lower than this probe, the heating power is cut off. The second high water level probe 19 sets the upper limit of normal water filling and is linked with the water pipe 21. After the water level reaches the standard, water is stopped from entering the cold water inlet 1. The warning water level probe 20 is slightly higher than the second high water level probe 19 and detects abnormally high water levels (such as solenoid valve failure). After triggering, the power supply of the entire system can be cut off in an emergency.

[0029] The inlet 5 of the heating water tank 3 is located at the bottom of the heating water tank 3, the first hot water outlet 6 is located at the top of the heating water tank 3, and the second hot water outlet 7 is located at the top of the heating water tank 3; cold water enters from the bottom and sinks naturally, while heated hot water rises, forming a thermal convection circulation.

[0030] It also includes a water pipe 21 and a warm water pipe 4. The inner heat exchange pipe 9 is connected to the inlet 5 of the heating water tank 3 through the water pipe 21, and the outer heat exchange pipe 10 is connected to the warm water outlet 8 through the warm water pipe 4.

[0031] The top of the heating water tank 3 is equipped with a pressure relief port 22, which is connected to the inside of the heating water tank 3. A pressure relief valve is installed on the pressure relief port 22. When the steam pressure inside the heating water tank 3 exceeds the set threshold, the pressure is automatically released to prevent the risk of explosion.

[0032] The water heater can be equipped with a dual-temperature zone digital display screen to show the water temperature of the heating water tank 3 in real time; in addition, it can be set to automatically cut off power when dry burning and to have an overflow prevention sensor to prevent the heating water tank 3 from dry burning. The overflow prevention sensor monitors the liquid flow rate in real time to prevent liquid overflow accidents.

[0033] In addition, the water heater can be equipped with an IoT module to support water temperature reservation via mobile APP (three settings: 35℃ / 45℃ / 55℃); it is equipped with a TDS water quality detection device that automatically reminds you of the filter replacement cycle; and it can be equipped with a UV sterilization lamp that automatically circulates and sterilizes every 2 hours.

[0034] This water heater with rapid cooling function creatively integrates the heating and cooling systems into the same device. It replaces traditional compressor refrigeration with physical heat dissipation and adopts the "boiling water gradient cooling method" to preheat newly injected cold water using waste heat, improving thermal efficiency by 40%. It is designed for the catering industry with a high flow rate mode (≥5L / min) to meet the needs of commercial scenarios. Compared with purchasing mineral water, it can reduce water costs by 90% (based on a daily water consumption of 200L). The warm water preparation time is shortened from 2 hours of traditional natural cooling to 8-12 minutes. The "secondary boiling" process (cooling water is boiled) eliminates the risk of microbial contamination. Moreover, it saves about 35% of electricity compared with water heaters with a refrigeration module (actual power ≤1.8kW).

[0035] This water heater with rapid cooling function was tested and found to take 4 minutes and 15 seconds to heat the water to boiling when the initial water temperature was 25℃; after the 100℃ boiling water was cooled by the heat exchange assembly 2, it dropped to 72℃ in 5 minutes and stabilized at 52±2℃ in 10 minutes; in continuous working mode, it can maintain an output of 30L of warm water per hour.

[0036] The above describes the preferred embodiments of this utility model, illustrating and describing its basic principles, main features, and advantages. Those skilled in the art should understand that this utility model is not limited to the above embodiments. The embodiments and descriptions in the specification are merely illustrative of the principles of this utility model. Various changes and modifications can be made without departing from the spirit and scope of this utility model, and all such changes and modifications fall within the scope of the claims. The scope of protection of this utility model is defined by the appended claims and their equivalents.

Claims

1. A water heater with rapid cooling function, characterized in that: It includes a heating water tank (3), a heat exchange assembly (2), a warm water outlet (8), and a cold water inlet (1). The heating water tank (3) is equipped with a first hot water outlet (6), a second hot water outlet (7), and a water inlet (5). The cold water inlet (1) is connected to the water inlet (5) through the heat exchange assembly (2), and the warm water outlet (8) is connected to the second hot water outlet (7) through the heat exchange assembly (2), so that the hot water output from the second hot water outlet (7) and the cold water input from the cold water inlet (1) can exchange heat in the heat exchange assembly (2), and the warm water outlet (8) can output warm water.

2. The boiler with the rapid cooling function according to claim 1, characterized in that: The heat exchange assembly (2) includes an inner heat exchange tube (9) and an outer heat exchange tube (10). The outer heat exchange tube (10) is sleeved on the outside of the inner heat exchange tube (9). The cold water inlet (1), the inner heat exchange tube (9), and the water inlet (5) of the heating water tank (3) are connected in sequence. The second hot water outlet (7), the outer heat exchange tube (10), and the warm water outlet (8) are connected in sequence.

3. The boiler with the rapid cooling function according to claim 1, characterized in that: The inner heat exchange tube (9) and the outer heat exchange tube (10) are wavy in shape, and the heat exchange assembly (2) is arranged in a meandering manner.

4. The boiler with the rapid cooling function as claimed in claim 1, characterized in that: The heat exchange assembly (2), the warm water outlet (8), and the cold water inlet (1) are externally placed in the heating water tank (3).

5. The boiler with the rapid cooling function as claimed in claim 1, characterized in that: The first hot water outlet (6) is equipped with a hot water solenoid valve (11) for opening or closing the first hot water outlet (6), the warm water outlet (8) is equipped with a warm water solenoid valve (12) for opening or closing the warm water outlet (8), and the cold water inlet (1) is equipped with an inlet solenoid valve (13) for opening or closing the cold water inlet (1).

6. The water boiler with the rapid cooling function as claimed in claim 1, wherein: The lower part of the heating water tank (3) is provided with a heating element (14) for heating water. The heating element (14) extends into the interior of the heating water tank (3). The interior of the heating water tank (3) is also provided with a temperature probe (15) for detecting the water temperature of the heating water tank (3). The first hot water outlet (6) is located above the temperature probe (15).

7. The water boiler with the rapid cooling function as claimed in claim 5, wherein: The heating water tank (3) is equipped with several staggered flow guide baffles (16) to form a meandering water flow channel (17) inside the heating water tank (3).

8. The water boiler with the rapid cooling function as claimed in claim 1, wherein: The upper part of the heating water tank (3) is equipped with a low water level probe (18) for detecting the low water level of the heating water tank (3), and the top of the heating water tank (3) is equipped with a second high water level probe (19) for detecting the high water level and warning water level of the heating water tank (3) and a warning water level probe (20).

9. The water boiler with the rapid cooling function as claimed in claim 1, wherein: The inlet (5) of the heating water tank (3) is located at the bottom of the heating water tank (3), the first hot water outlet (6) is located at the top of the heating water tank (3), and the second hot water outlet (7) is located at the top of the heating water tank (3).

10. The water boiler with the rapid cooling function as claimed in claim 1, wherein: The top of the heating water tank (3) is provided with a pressure relief port (22), which is connected to the inside of the heating water tank (3). A pressure relief valve is provided on the pressure relief port (22).

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