Water boiler with rapid cooling function

Abstract

A water boiler with a rapid cooling function comprises a heating water tank, a heat exchange assembly, a warm water outlet and a cold water inlet, and the heating water tank is provided with a first boiled water outlet, a second boiled water outlet and a water inlet; the cold water inlet is communicated with the water inlet through the heat exchange assembly, and the warm water outlet is communicated with the second boiled water outlet through the heat exchange assembly, so that hot water output from the second boiled water outlet and cold water input from the cold water inlet are subjected to heat exchange in the heat exchange assembly, and warm water is output from the warm water outlet. According to the water boiler, the cold water inlet, the heat exchange assembly, the heating water tank and the warm water outlet are arranged, cold water of the cold water inlet enters the heating water tank to be heated through the heat exchange assembly, boiled water in the heating water tank reaches the warm water outlet through the heat exchange assembly, and cold water of the cold water inlet and boiled water in the heating water tank exchange heat in the heat exchange assembly; therefore, the boiling water can be quickly cooled, and a user can obtain and use warm water in a short time.

Description

Technical Field

[0001] The present invention relates to the technical field of water boilers, in particular to a water boiler with a rapid cooling function. Background Art

[0002] Existing water boilers generally only have a heating function. Users need to wait for the boiling water to cool naturally to a suitable temperature (such as 50°C) before using it, which is time-consuming. In order to shorten the waiting time, the catering industry often directly uses mineral water as raw material, resulting in a significant increase in operating costs. In addition, some businesses directly use unboiled tap water, which poses a health and safety hazard and violates food safety regulations. A small number of water boilers have a boiling water cooling function. These water boilers mostly use additional refrigeration modules, which have high energy consumption and complex structure.

[0003] Therefore, further improvements are necessary. Summary of the Invention

[0004] The purpose of the present invention is to provide a water boiler with a rapid cooling function that has a simple structure, 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 a rapid cooling function designed for this purpose is characterized by comprising a heating water tank, a heat exchange assembly, a warm water outlet, and a cold water inlet, wherein the heating water tank is provided with a first hot water outlet, a second hot water outlet, and a water inlet; The cold water inlet is connected to the water inlet through the heat exchange assembly, and the warm water outlet is connected to the second boiled water outlet through the heat exchange assembly, so that the hot water output from the second boiled water outlet and the cold water input from the cold water inlet are heat exchanged in the heat exchange assembly, and the warm water outlet outputs warm water.

[0006] 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 water inlet of the heating water tank are connected in sequence. The second boiled water outlet, the outer heat exchange tube and the warm water outlet are connected in sequence.

[0007] The inner heat exchange tube and the outer heat exchange tube are wavy in shape, and the heat exchange assembly is arranged in a circuitous manner up and down.

[0008] The heat exchange assembly, warm water outlet and cold water inlet are arranged outside the heating water tank.

[0009] The first hot water outlet is provided with a hot water solenoid valve for opening or closing the first hot water outlet, the warm water outlet is provided with a warm water solenoid valve for opening or closing the hot water outlet, and the cold water inlet is provided with a water inlet solenoid valve for opening or closing the cold water inlet.

[0010] A heating element for heating water is provided at the lower part of the heating water tank, and the heating element extends into the interior of the heating water tank. A temperature probe for detecting the water temperature of the heating water tank is also provided inside the heating water tank, and the first boiled water outlet is located above the temperature probe.

[0011] A plurality of mutually staggered guide baffles are arranged in the heating water tank to form a circuitous water flow channel in the heating water tank.

[0012] A low water level probe for detecting the low water level of the heating water tank is provided on the upper part of the heating water tank, and a second high water level probe and a warning water level probe for detecting the high water level and warning water level of the heating water tank are provided on the top of the heating water tank respectively.

[0013] The water inlet of the heating water tank is located at the bottom of the heating water tank, the first boiling water outlet is located at the upper part of the heating water tank, and the second boiling water outlet is located at the top of the heating water tank.

[0014] A pressure relief port is provided on the top of the heating water tank, the pressure relief port is connected to the interior of the heating water tank, and a pressure relief valve is provided on the pressure relief port.

[0015] The water boiler of the present invention is provided with a cold water inlet, a heat exchange assembly, a heating water tank and a warm water outlet. The cold water at the cold water inlet enters the heating water tank through the heat exchange assembly for heating, and the boiling water in the heating water tank reaches the warm water outlet through the heat exchange assembly. The cold water at the cold water inlet and the boiling water in the heating water tank exchange heat in the heat exchange assembly, thereby lowering the boiling water temperature, thereby achieving rapid cooling of the boiling water (down to 50±3°C within 10 minutes), so that users can obtain and use warm water in a short time; in addition, this structure does not require an additional refrigeration module, so the energy consumption will basically not increase, and the structure is simple, which is particularly suitable for the catering industry's demand for rapid preparation of warm boiled water. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 This is a schematic diagram of the water circuit of a water boiler in one embodiment of the present invention.

[0017] Figure 2 2 is a diagram showing the internal structure of a heat exchange assembly in one embodiment of the present invention. DETAILED DESCRIPTION

[0018] The present invention will be further described below with reference to the accompanying drawings and embodiments.

[0019] See also Figure 1-Figure 2 The 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; 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 boiled water outlet 7 through the heat exchange assembly 2, so that the hot water output from the second boiled water outlet 7 and the cold water input from the cold water inlet 1 are heat exchanged in the heat exchange assembly 2, and the warm water outlet 8 outputs warm water.

[0020] 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 boiling water outlet 7, the outer heat exchange tube 10 and the warm water outlet 8 are connected in sequence. When the water boiler is working, the external water reaches the inner heat exchange tube 9 through the cold water inlet 3, and then enters the heating water tank 2 through the water guide pipe 21 and the water inlet 5 to be heated and heated to boiling water. After the water in the heating water tank 2 is filled, the boiling water passes through the second boiling water outlet. 7 enters the outer heat exchange tube 10 and flows to the warm water pipeline 4 through the outer heat exchange tube 10. The boiling water in the outer heat exchange tube 10 and the cold water in the inner heat exchange tube 9 perform heat exchange to reduce the boiling water temperature and preheat the cold water to turn the boiling water into warm water. The warm water can flow out through the warm water outlet 8 for water collection. In addition, the boiling water in the heating water tank 2 can flow out through the first boiled water outlet 6 for water collection. The structure adopts an inner / outer double-layer heat exchange tube design. The inner tube 9 carries cold water and the outer tube 10 carries boiled water, and efficient heat exchange is achieved through reverse flow.

[0021] 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 circuitous manner up and down, which can reduce the water flow velocity, so that the boiling water in the outer heat exchange tube 10 and the cold water in the inner heat exchange tube 9 can fully exchange heat.

[0022] The heat exchange assembly 2 , the warm water outlet 8 , and the cold water inlet 1 are externally arranged on the heating water tank 3 .

[0023] The first boiled water outlet 6 is provided with a boiled water solenoid valve 11 for opening or closing the first boiled water outlet 6, the warm water outlet 8 is provided with a warm water solenoid valve 12 for opening or closing the boiled water outlet 8, and the cold water inlet 1 is provided with a water inlet solenoid valve 13 for opening or closing the cold water inlet 1; the boiled water solenoid valve 11 independently controls the boiling water outlet (for direct use), and the warm water solenoid valve 12 independently controls the warm water outlet 8 (after cooling treatment), thereby realizing dual-mode water outlet.

[0024] A heating element 14 for heating water is provided at the lower part of the heating water tank 3. The heating element 14 is a quartz tube. The heating element 14 extends into the interior of the heating water tank 3. A temperature probe 15 for detecting the water temperature of the heating water tank 3 is also provided inside the heating water tank 3. The first boiled water outlet 6 is located above the temperature probe 15. The water temperature inside the heating water tank 3 is detected by the temperature probe 15, and then the heating power of the heating element 14 is controlled to control the water temperature inside the heating water tank 3, thereby controlling the water outlet temperature of the first boiled water outlet 6.

[0025] The heating water tank 3 is provided with a plurality of mutually staggered guide baffles 16 to form a circuitous water flow channel 17 in the heating water tank 3, which can increase the contact time between the heating element 14 and the water and improve the heating effect.

[0026] A low water level probe 18 for detecting the low water level of the heating water tank 3 is provided on the upper part of the heating water tank 3, and a second high water level probe 19 and a warning water level probe 20 for detecting the high water level and warning water level of the heating water tank 3 are respectively provided on the top of the heating water tank 3; the low water level probe 18 detects the lowest safe water level to prevent dry boiling. When the water level is lower than this probe, the heating power is cut off. The second high water level probe 19 sets the normal water injection upper limit and is linked to the water pipe 21. After the water level reaches the standard, water is stopped from entering from the cold water inlet 1. The warning water level probe 20 is slightly higher than the second high water level probe 19, which detects abnormally high water level (such as solenoid valve failure). After being triggered, the power supply of the entire system can be cut off urgently.

[0027] The water inlet 5 of the heating water tank 3 is located at the bottom of the heating water tank 3, the first boiling water outlet 6 is located at the upper part of the heating water tank 2, and the second boiling water outlet 7 is located at the top of the heating water tank 2; cold water enters from the bottom and sinks naturally, and the heated hot water rises, forming a heat convection cycle.

[0028] It also includes a water pipe 21 and a warm water pipeline 4. The inner heat exchange pipe 9 is connected to the water 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 pipeline 4.

[0029] A pressure relief port 22 is provided on the top of the heating water tank 3, and the pressure relief port 22 is connected to the interior of the heating water tank 3. A pressure relief valve is provided on the pressure relief port 22, which automatically releases pressure when the steam pressure in the heating water tank 3 exceeds a set threshold to prevent the risk of explosion.

[0030] The water boiler can be equipped with a dual-temperature zone digital display to display the water temperature of the heating water tank 3 in real time. In addition, an automatic power-off function for dry-burning and an anti-overflow sensor can be set to prevent the heating water tank 3 from dry-burning. The anti-overflow sensor monitors the liquid flow in real time to prevent liquid overflow accidents.

[0031] In addition, the water boiler can be equipped with an Internet of Things module to support water temperature reservation via mobile phone APP (three settings of 35℃ / 45℃ / 55℃ can be set); it can be equipped with a TDS water quality detection device to automatically prompt the filter replacement cycle; and a UV ultraviolet sterilization lamp can be added to automatically cycle and sterilize every 2 hours.

[0032] This water boiler with rapid cooling function creatively integrates the heating and cooling systems into the same device, replaces traditional compressor refrigeration with physical heat dissipation, adopts the "boiling water gradient cooling method", uses waste heat to preheat newly injected cold water, and improves thermal efficiency by 40%. It is designed for the catering industry with a large-flow water outlet mode (≥5L / min) to meet the needs of commercial scenarios; it can reduce water costs by 90% compared to purchasing mineral water (calculated based on a daily water consumption of 200L), and the warm water preparation time is shortened from 2 hours of traditional natural cooling to 8-12 minutes. The "secondary boiling" process (all cooling water is boiled) eliminates the risk of microbial contamination, and saves about 35% of electricity compared to water boilers with refrigeration modules (measured power ≤1.8kW).

[0033] This water boiler with rapid cooling function has been tested: when the initial water temperature is 25℃, it takes 4 minutes and 15 seconds to heat to boiling; after 100℃ boiling water is cooled by heat exchange assembly 2, it drops to 72℃ in 5 minutes and stabilizes at 52±2℃ in 10 minutes; in continuous working mode, it can maintain a warm water output of 30L per hour.

[0034] The above is a preferred embodiment of the present invention, which illustrates and describes the basic principles, main features, and advantages of the present invention. Those skilled in the art should understand that the present invention is not limited to the above embodiments. The above embodiments and descriptions are merely illustrative of the principles of the present invention. Various changes and modifications may be made to the present invention without departing from the spirit and scope of the present invention. Such changes and modifications are intended to fall within the scope of the present invention. The scope of protection claimed in the present invention is defined by the appended claims and their equivalents.

Claims

1. A water boiler with a rapid cooling function, characterized by: It comprises 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); 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) are heat-exchanged in the heat exchange assembly (2), and the warm water outlet (8) outputs warm water.

2. The water boiler with 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), wherein the outer heat exchange tube (10) is sleeved on the outer side 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, and the second hot water outlet (7), the outer heat exchange tube (10), and the warm water outlet (8) are connected in sequence.

3. The water boiler with 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 circuitous manner up and down.

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

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

6. The water boiler with rapid cooling function according to claim 1, characterized in that: A heating element (14) for heating water is provided at the lower portion of the heating water tank (3), and the heating element (14) extends into the interior of the heating water tank (3). A temperature probe (15) for detecting the water temperature of the heating water tank (3) is also provided inside the heating water tank (3), and the first hot water outlet (6) is located above the temperature probe (15).

7. The water boiler with rapid cooling function according to claim 5, characterized in that: A plurality of mutually staggered guide baffles (16) are provided in the heating water tank (3) to form a circuitous water flow channel (17) in the heating water tank (3).

8. The water boiler with rapid cooling function according to claim 1, characterized in that: A low water level probe (18) for detecting a low water level of the heating water tank (3) is provided on the upper portion of the heating water tank (3), and a second high water level probe (19) and a warning water level probe (20) for detecting a high water level and a warning water level of the heating water tank (3) are provided on the top of the heating water tank (3), respectively.

9. The water boiler with rapid cooling function according to claim 1, characterized in that: The water inlet (5) of the heating water tank (3) is located at the bottom of the heating water tank (3), the first boiling water outlet (6) is located at the upper part of the heating water tank (2), and the second boiling water outlet (7) is located at the top of the heating water tank (2).

10. The water boiler with rapid cooling function according to claim 1, characterized in that: A pressure relief port (22) is provided at the top of the heating water tank (3), the pressure relief port (22) is connected to the interior of the heating water tank (3), and a pressure relief valve is provided on the pressure relief port (22).

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