A quick-start large-flux commercial hot and cold water dispenser and a control method thereof

By employing a control method that combines a dual-core heating element with sensor monitoring, the problem of unstable hot water supply in high-flow scenarios has been solved, achieving stable preparation of both warm and hot water, thus improving user experience and energy efficiency.

CN116473425BActive Publication Date: 2025-11-04GUANGDONG SPRING WATER EQUIPMENT MANUFACTURING CO LTD
View PDF 2 Cites 0 Cited by

Patent Information

Application Number
CN202310385430.9
Authority / Receiving Office
CN · China
Patent Type
Patents(China)
Current Assignee / Owner
Filing Date
2023-04-11
Publication Date
2025-11-04
Estimated Expiration
2043-04-11

AI Technical Summary

Technical Problem

Existing water dispensers suffer from problems such as unstable supply, uncontrollable flow rate, and unstable temperature when preparing boiled water, especially in high-flow scenarios where it is difficult to provide both warm and boiling water simultaneously.

Method used

It adopts a dual-core heating component, including a first and a second water boiling heating component, which are used to prepare heat-preserving water and boiling water respectively. Through the cooperation of heat exchanger and water storage tank, stable control of water temperature and flow rate is achieved, and water level and temperature sensors are used for real-time monitoring and adjustment.

Benefits of technology

It enables high-flow commercial water dispensers to continuously produce boiling and warm water with stable water temperature and flow rate, improving user experience while being energy-efficient and safe.

✦ Generated by Eureka AI based on patent content.

Smart Images

  • Figure CN116473425B_ABST
    Figure CN116473425B_ABST
Patent Text Reader

Abstract

The application discloses a quick-made large-flux commercial instant hot and open water dispenser and a control method thereof. The dispenser comprises a water inlet pipeline, a heat exchanger, a water storage tank and a water boiling and heating assembly. A water inlet electromagnetic valve is arranged on the water inlet pipeline. The water storage tank is communicated with a hot water taking pipeline. The water boiling and heating assembly comprises first and second water boiling and heating assemblies. The first water boiling and heating assembly, the water inlet pipeline and the water storage tank are communicated with the heat exchanger. The water storage tank is communicated with a water inlet of the second water boiling and heating assembly through a heat-preserved water supply pipeline and a water flow regulating pump. Water outlets of the second water boiling and heating assembly are respectively communicated with a boiling water taking pipeline and an upper portion of the water storage tank. The water outlet of the first water boiling and heating assembly and the water outlet of the second water boiling and heating assembly are respectively provided with first and second water outlet temperature sensors. A low water level detection switch and a heat-preserved water temperature sensor are further arranged in the water storage tank. The application can continuously prepare boiling water, and the boiling water taking flow rate is stable, the boiling water taking temperature is stable, and hot water and boiling water can be taken simultaneously.
Need to check novelty before this filing date? Find Prior Art

Description

Technical Field

[0001] This invention relates to a water dispenser, and more particularly to a fast-developing, high-flow commercial warm water dispenser and its control method. Background Technology

[0002] Currently, water dispensers with boiling water function mainly fall into three categories: 1. Storage type, 2. Quick-heating type, and 3. Instant-heating type. Storage type dispenses boiling water in a large-capacity inner tank, but the preparation time is long, and the water needs to be boiled again after cooling, resulting in so-called "repeatedly boiled water." Quick-heating type mainly stores a certain amount of warm water in advance, and when hot water is dispensed, the warm water is reheated to quickly boil it. Its drawback is that the storage of warm water is limited, and hot water cannot be continuously dispensed, resulting in an unstable hot water supply. Instant-heating type uses a more powerful heater to directly boil regular water. Because the heating power cannot be infinitely large, and the usage scenarios cannot provide a large electrical load, the water flow rate through the heater needs to be limited to meet the requirement of instant boiling, resulting in a poor user experience.

[0003] Chinese Patent Document No. CN106510465A, published on March 22, 2017, discloses a quick-heating, constant-flow campus hot water dispenser and its heating method. The dispenser includes a preheating water tank assembly with inlet and outlet water outlets, a quick-heating water boiling assembly, and a heat exchanger with first and second heat exchange channels for mutual heat exchange. The first heat exchange channel has a low-temperature water inlet and a first heat exchange outlet, while the second heat exchange channel has a high-temperature water inlet and a second heat exchange outlet. The low-temperature water inlet is connected to the main water inlet pipe via a first inlet solenoid valve. One branch of the first heat exchange outlet is connected to the preheating water tank assembly via a second inlet solenoid valve, and the other branch is connected to the inlet of the quick-heating water boiling assembly. One branch of the outlet of the quick-heating water boiling assembly is connected to a boiling solenoid valve, and the other branch is connected to the high-temperature water inlet. The second heat exchange outlet is connected to the preheating water tank assembly. The quick-heating water boiling assembly, heat exchanger, and hot water tap are all located below the highest water level of the preheating water tank assembly. This structure uses a single rapid-heating water-boiling component for both preparing boiling water and preparing reserve water for the preheating tank. Therefore, when boiling water is being drawn, reserve water cannot be prepared, causing the water level in the preheating tank to decrease until it becomes insufficient, at which point water supply stops. Boiling water can only be drawn again after the rapid-heating component has prepared enough reserve water (reaching a certain water level in the preheating tank). Consequently, the volume of boiling water is relatively small. Furthermore, when the preheating tank supplies water to the rapid-heating component, the water falls due to its own weight, resulting in a slow and uncontrollable flow rate for boiling water. Summary of the Invention

[0004] The purpose of this invention is to provide a fast-developing, high-flow-rate commercial hot and cold water dispenser and its control method, which has a reasonable structure, can continuously produce hot water, has a stable hot water flow rate and temperature, and can simultaneously dispense warm and hot water.

[0005] The objective of this invention is achieved as follows:

[0006] A fast-producing, high-flow commercial warm-water dispenser includes a water inlet pipe, a heat exchanger, a water storage tank, and a water heating assembly. The heat exchanger has an internal heat exchange passage with a low-temperature water inlet, a first heat exchange outlet, a high-temperature water inlet, and a second heat exchange outlet. The low-temperature water inlet is connected to the water inlet pipe, which is equipped with an inlet solenoid valve. The second heat exchange outlet is connected to the water storage tank, which is connected to a warm water intake pipe. The water heating assembly comprises a first water heating assembly and a second water heating assembly. A heat exchange outlet and the high-temperature water inlet are respectively connected to the water inlet and outlet of the first water heating component; the water storage tank is connected to the water inlet of the second water heating component through a heat-insulating water supply pipeline and a water flow regulating pump, and the water outlet of the second water heating component is connected to the boiling water intake pipeline and the upper part of the water storage tank; the water outlets of the first and second water heating components are respectively equipped with a first water outlet temperature sensor and a second water outlet temperature sensor; the water storage tank is also equipped with a low water level detection switch and a heat-insulating water temperature sensor.

[0007] The objective of this invention can also be achieved by the following technical measures:

[0008] As a more specific embodiment, the first water heating assembly includes a first water boiling container, a first heating element, a water level sensor, and a first outlet water temperature sensor. The lower and upper parts of the first water boiling container are respectively provided with the water inlet and outlet of the first water heating assembly. The first outlet water temperature sensor is disposed on the first water boiling container and close to its outlet. The first heating element is disposed on the inner bottom of the first water boiling container, and the upper end of the first heating element extends to below the outlet of the first water heating assembly. The water level sensor is disposed on the first water boiling container and located between the first outlet water temperature sensor and the upper end of the first heating element.

[0009] As a further embodiment, the second water heating assembly includes a second water boiling container, a second heating element, and a second outlet water temperature sensor. The outlet of the second water heating assembly includes a boiling water outlet and a heat preservation water outlet. The boiling water outlet is located at the upper part of the second water boiling container and is connected to the boiling water intake pipe. The inlet of the second water heating assembly is located at the lower part of the second water boiling container. The second outlet water temperature sensor is located on the second water boiling container and near the boiling water outlet. The second heating element is located on the inner bottom of the second water boiling container, and its upper end extends to below the boiling water outlet. The heat preservation water outlet is located at the top of the second water boiling container and is connected to the upper part of the water storage tank through a heat preservation water outlet pipe.

[0010] As a further embodiment, the outlet of the first water heating component is connected to the high-temperature water inlet of the heat exchanger via a hot water pipe; the top of the first water boiling container is also provided with an exhaust port, which is connected to the upper part of the water storage tank via an exhaust pipe and a pressure relief valve. The hot air generated during the heating process of the first water boiling container can enter the water storage tank through the exhaust pipe, reducing heat energy waste.

[0011] As a further embodiment, a high water level detection switch is also provided above the low water level detection switch inside the water storage tank; the insulated water supply pipeline is connected to the lower part of the water storage tank, and the connection point between the insulated water supply pipeline and the water storage tank is located below the low water level detection switch; the insulated water temperature sensor is located at the bottom of the water storage tank.

[0012] As a further embodiment, the hot water intake pipeline includes a hot water intake pipe, a hot water intake solenoid valve, and a hot water nozzle. The hot water intake pipe is connected to the outlet of the second water heating component, and the hot water nozzle is connected to the hot water intake pipe through the hot water intake solenoid valve. The warm water intake pipeline includes a warm water intake pipe, a maintenance valve, a warm water intake solenoid valve, and a warm water nozzle. The warm water intake pipe is connected to the water storage tank through the maintenance valve, and the warm water nozzle is connected to the warm water intake pipe through the warm water intake solenoid valve.

[0013] As a further embodiment, the bottom of the first water boiling container is connected to the drain pipe via a first descaling pipe and a descaling valve; the bottom of the water storage tank is connected to the drain pipe via a second descaling pipe and a drain solenoid valve.

[0014] As a further embodiment, the water inlet pipeline includes a water inlet pipe, a pressure stabilizing valve, a water purification device, a flow meter, and the water inlet solenoid valve. The pressure stabilizing valve, the water purification device, the flow meter, and the water inlet solenoid valve are installed on the water inlet pipe. One end of the water inlet pipe is used to connect to a water source, and the other end of the water inlet pipe is connected to the low-temperature water inlet of the heat exchange channel.

[0015] As a further embodiment, the heat exchanger includes an outer tube and an inner tube, with the outer tube fitted over the inner tube. The two ends of the outer tube are the low-temperature water inlet and the first heat exchange outlet, respectively, and the two ends of the inner tube corresponding to the outer tube are the second heat exchange outlet and the high-temperature water inlet, respectively.

[0016] As a further option, the water storage tank is an insulated water tank.

[0017] A control method for a high-flow commercial hot and cold water dispenser is characterized in that: after the initial water and power supply, the inlet solenoid valve is opened to allow water to enter the first water heating component. Furthermore, when the water level is determined to be close to the outlet of the first water heating component by water level detection, flow rate detection, or water supply time, the inlet solenoid valve is closed and the first water heating component is started. After the water in the first water heating component is heated to the set temperature, the inlet solenoid valve is opened again. The pressure of the newly introduced water source is used to heat the already heated water in the first water heating component through a heat exchanger to exchange heat with subsequent new water sources before entering the water storage tank. The first water heating component continuously heats the newly introduced water source, and this cycle continues until the water level in the water storage tank reaches the set height, at which point heating and water intake cease.

[0018] When hot water is needed, a hot water dispensing command is sent, the second boiling water heating component is activated, the hot water dispensing pipeline is opened, and the water flow regulating pump is turned on linearly according to the temperature measured by the second outlet water temperature sensor. Hot water flows out from the dispensing pipeline. During the water dispensing process, the electronic control monitors the outlet water temperature in real time and adjusts the power of the second boiling water heating component and the opening and closing of the water flow regulating pump as needed to ensure the stability of the outlet water temperature.

[0019] During the process of obtaining hot water, when the water level in the storage tank is lower than the set water level, the first water heating component and the water inlet solenoid valve are opened to add warm water to the storage tank, so as to ensure that hot water can be continuously produced.

[0020] You can use both boiling water and warm water.

[0021] The beneficial effects of this invention are as follows:

[0022] (1) This fast-heating, high-flow commercial warm water dispenser is suitable for scenarios with large water consumption. It uses a dual-core heating component to heat the source water in stages. It is not affected by water pressure and voltage fluctuations during use. It heats up quickly, has a large flow rate, and a constant water temperature. Under the same power, it has a larger and more stable flow rate than traditional fast water heaters.

[0023] (2) This quick-setting, high-flow commercial warm water dispenser effectively utilizes the gap time when the user is not using water to perform a first-stage preheating. When the user needs water, it performs a second-stage heating based on the first-stage water temperature, thereby increasing the water flow rate and effectively improving the user's experience.

[0024] (3) The water supply pipeline of this quick-build high-flow commercial warm water dispenser starts from the bottom of the water storage tank. Therefore, the water temperature sensor is set at the bottom of the water storage tank to accurately obtain the temperature of the water entering the second boiling water heating component. The system can accurately adjust the power of the water flow regulating pump according to the water temperature.

[0025] (4) This fast-release, high-flow commercial warm-water dispenser uses a first boiling heating component to prepare the water in the storage tank, while the second boiling heating component is mainly responsible for preparing boiling water. Therefore, during the process of the second boiling heating component preparing boiling water, the first boiling heating component can also prepare the insulated water in the storage tank, ensuring that the second boiling heating component can quickly heat the water to boiling temperature based on the insulated water. In addition, since the first and second boiling heating components work independently, the storage tank is replenished with warm water by the first boiling heating component, ensuring that the water supply in the storage tank is sufficient and can simultaneously meet the needs of obtaining both boiling water and warm water.

[0026] (5) The outlet of the second water heating component of this quick-to-use high-flow commercial warm water dispenser is connected to the upper part of the water storage tank. On the one hand, it is used to heat the water inside the water storage tank. On the other hand, when boiling water, the pipeline connected to the water storage tank can be used for exhaust and waste heat recovery, which is more energy-efficient and safer. Attached Figure Description

[0027] Figure 1 This is a schematic diagram of the water circuit principle of an embodiment of the water dispenser of the present invention.

[0028] In the diagram: 1 is the water inlet pipe, 11 is the pressure regulating valve, 12 is the water purification device, 13 is the flow meter, and 14 is the water inlet solenoid valve;

[0029] 2 represents the heat exchanger, 21 represents the outer tube, and 22 represents the inner tube;

[0030] 3 is the first water heating component, 31 is the first heating element, 32 is the water level sensor, 33 is the first outlet water temperature sensor, 34 is the first water boiling container, 35 is the pressure relief valve, 36 is the exhaust pipe, 37 is the first scale discharge pipe, 38 is the scale discharge valve, and 39 is the hot water pipeline.

[0031] 4 is the second water heating component, 41 is the second heating element, 42 is the second water outlet temperature sensor, 43 is the second water boiling container, 44 is the hot water intake pipe, 45 is the hot water intake solenoid valve, 46 is the hot water outlet nozzle, and 47 is the heat preservation water outlet pipe.

[0032] 5 is the water storage tank, 51 is the high water level detection switch, 52 is the low water level detection switch, 53 is the heat preservation water temperature sensor, 54 is the second scale discharge pipe, 55 is the drain solenoid valve, and 56 is the heat preservation water supply pipeline.

[0033] 6 is a water flow regulating pump;

[0034] 7 is the warm water intake pipe, 71 is the maintenance valve, 72 is the warm water intake solenoid valve, and 73 is the warm water intake nozzle;

[0035] 8 represents the drain pipe. Detailed Implementation

[0036] The present invention will be further described below with reference to the accompanying drawings and embodiments:

[0037] See Figure 1 As shown, a fast-producing, high-flow commercial warm-water dispenser includes a water inlet pipe, a heat exchanger 2, a water storage tank 5, and a water heating assembly. The heat exchanger 2 has an internal heat exchange passage with a low-temperature water inlet, a first heat exchange outlet, a high-temperature water inlet, and a second heat exchange outlet. The low-temperature water inlet is connected to the water inlet pipe, which is equipped with an inlet solenoid valve 14. The second heat exchange outlet is connected to the water storage tank 5, which is connected to a warm water intake pipe. The water heating assembly includes a first water heating assembly 3 and a second water heating assembly 4. The first heat exchange outlet and the... The high-temperature water inlet is connected to the inlet and outlet of the first water heating component 3, respectively; the water storage tank 5 is connected to the inlet of the second water heating component 4 through the heat preservation water supply pipeline 56 and the water flow regulating pump 6, and the outlet of the second water heating component 4 is connected to the boiling water intake pipeline and the upper part of the water storage tank 5, respectively; the outlet of the first water heating component 3 and the outlet of the second water heating component 4 are respectively equipped with a first outlet water temperature sensor 33 and a second outlet water temperature sensor 42; the water storage tank 5 is also equipped with a low water level detection switch 52 and a heat preservation water temperature sensor 53.

[0038] The first water heating assembly 3 includes a first water container 34, a first heating element 31, a water level sensor 32, and a first outlet water temperature sensor 33. The lower and upper parts of the first water container 34 are respectively provided with the water inlet and water outlet of the first water heating assembly 3. The first outlet water temperature sensor 33 is disposed on the first water container 34 and close to its outlet. The first heating element 31 is disposed on the inner bottom of the first water container 34, and the upper end of the first heating element 31 extends to below the outlet of the first water heating assembly 3. The water level sensor 32 is disposed on the first water container 34 and located between the first outlet water temperature sensor 33 and the upper end of the first heating element 31.

[0039] The second water heating component 4 includes a second water boiling container 43, a second heating element 41, and a second outlet water temperature sensor 42. The outlet of the second water heating component 4 includes a boiling water outlet and a heat preservation water outlet. The boiling water outlet is located at the upper part of the second water boiling container 43 and is connected to the boiling water intake pipe. The inlet of the second water heating component 4 is located at the lower part of the second water boiling container 43. The second outlet water temperature sensor 42 is located on the second water boiling container 43 and close to the boiling water outlet. The second heating element 41 is located on the inner bottom of the second water boiling container 43, and the upper end of the second heating element 41 extends to below the boiling water outlet. The heat preservation water outlet is located at the top of the second water boiling container 43 and is connected to the upper part of the water storage tank 5 through the heat preservation water outlet pipe 47.

[0040] The outlet of the first water heating component 3 is connected to the high-temperature water inlet of the heat exchanger 2 through the hot water pipe 39; the top of the first water boiling container 34 is also provided with an exhaust port, which is connected to the upper part of the water storage tank 5 through the exhaust pipe 36 and the pressure relief valve 35.

[0041] A high water level detection switch 51 is also provided above the low water level detection switch 52 inside the water storage tank 5; the insulated water supply pipeline 56 is connected to the lower part of the water storage tank 5, and the position where the insulated water supply pipeline 56 connects to the water storage tank 5 is located below the low water level detection switch 52; the insulated water temperature sensor 53 is located at the bottom of the water storage tank 5.

[0042] The hot water intake pipeline includes a hot water intake pipe 44, a hot water intake solenoid valve 45, and a hot water nozzle 46. The hot water intake pipe 44 is connected to the outlet of the second water heating component 4, and the hot water nozzle 46 is connected to the hot water intake pipe 44 through the hot water intake solenoid valve 45. The warm water intake pipeline includes a warm water intake pipe 7, a maintenance valve 71, a warm water intake solenoid valve 72, and a warm water nozzle 73. The warm water intake pipe 7 is connected to the water storage tank 5 through the maintenance valve 71, and the warm water nozzle 73 is connected to the warm water intake pipe 7 through the warm water intake solenoid valve 72.

[0043] The bottom of the first water boiling container 34 is connected to the drain pipe 8 through the first scale discharge pipe 37 and the scale discharge valve 38; the bottom of the water storage tank 5 is connected to the drain pipe 8 through the second scale discharge pipe 54 and the drain solenoid valve 55.

[0044] The water inlet pipeline includes a water inlet pipe 1, a pressure stabilizing valve 11, a water purification device 12, a flow meter 13, and a water inlet solenoid valve 14. The pressure stabilizing valve 11, the water purification device 12, the flow meter 13, and the water inlet solenoid valve 14 are installed on the water inlet pipe 1. One end of the water inlet pipe 1 is used to connect to a water source, and the other end of the water inlet pipe 1 is connected to the low-temperature water inlet of the heat exchange channel.

[0045] The heat exchanger 2 includes an outer tube 21 and an inner tube 22. The outer tube 21 is fitted over the inner tube 22. The two ends of the outer tube 21 are the low-temperature water inlet and the first heat exchange outlet, respectively. The two ends of the inner tube 22 are the second heat exchange outlet and the high-temperature water inlet, respectively, corresponding to the two ends of the outer tube 21.

[0046] The water storage tank 5 is an insulated water tank.

[0047] A control method for a fast-flow commercial hot and cold water dispenser is disclosed. Upon initial water and power supply, the inlet solenoid valve 14 is opened, allowing water to flow along arrow A through heat exchanger 2 and into the first heating element 3. When the water level sensor 32 detects that the water level is approaching the outlet of the first heating element 3, the inlet solenoid valve 14 is closed and the first heating element 3 is activated. After the water in the first heating element 3 is heated to the set temperature, the inlet solenoid valve 14 is reopened. Using the pressure of the newly supplied water, the heated water in the first heating element 3 flows along arrow B through heat exchanger 2 to exchange heat with subsequent new water supplies before flowing along arrow C into the storage tank 5. The first heating element 3 continuously heats the new water supply, and this cycle continues until the water level in the storage tank 5 reaches the set height, at which point heating and water supply cease. During operation, the steam generated by the first heating element 3 flows along arrow D through pressure relief valve 35 and exhaust pipe 36 into the storage tank 5, achieving heat recovery.

[0048] When hot water is needed, a hot water dispensing command is sent (e.g., clicking the hot water dispensing button on the water dispenser panel, not shown in the figure). The second water heating component 4 is activated, the hot water dispensing pipeline is opened, and the water flow regulating pump 6 is linearly activated according to the temperature measured by the second outlet water temperature sensor 42. The insulated water in the water storage tank 5 flows into the second water heating component 4 for heating along the direction of arrow F. Hot water flows out from the water dispensing pipeline. During the water dispensing process, the electronic control monitors the outlet water temperature in real time through the second outlet water temperature sensor 42 and adjusts the power of the second water heating component 4 and the opening and closing of the water flow regulating pump 6 as needed to ensure the stability of the outlet water temperature.

[0049] During the process of obtaining hot water, when the water storage tank 5 is lower than the set water level, the first water heating component 3 and the water inlet solenoid valve 14 are opened to add warm water to the water storage tank 5 (when the water level reaches the high water level detection switch 51, water production stops) to ensure that hot water can be continuously produced.

[0050] You can use both boiling water and warm water.

[0051] In standby mode, when the water temperature sensor 53 detects that the water temperature in the water storage tank 5 is lower than the set value, it starts the second boiling water heating component 4 and the water flow regulating pump 6. The water in the water storage tank 5 enters the second boiling water heating component 4 and is heated to the set temperature. Then it enters the water storage tank 5 in the direction of arrow F1. This cycle continues until the water temperature in the water storage tank 5 reaches the set value.

[0052] By periodically controlling the opening of the drain solenoid valve 55 and manually controlling the opening of the scale removal valve 38, the water in the water storage tank 5 and the first boiling water container 34 can be drained away in the direction of arrow E, thus achieving the function of cleaning scale.

[0053] The above describes the preferred embodiments of the present invention, illustrating and describing the basic principles, main features, and advantages of the invention. Those skilled in the art should understand that the present invention is not limited to the above embodiments. The embodiments and descriptions in the specification are merely illustrative of the principles of the invention. Various changes and modifications can be made to the invention without departing from its spirit and scope, and all such changes and modifications fall within the scope of the present invention as defined by the appended claims and their equivalents.

Claims

1. A fast-producing, high-flow commercial warm-water dispenser, comprising an inlet pipe, a heat exchanger (2), a water storage tank (5), and a water heating assembly, wherein the heat exchanger (2) has an internal heat exchange passage, the heat exchange passage having a low-temperature water inlet, a first heat exchange outlet, a high-temperature water inlet, and a second heat exchange outlet, the low-temperature water inlet being connected to the inlet pipe, the inlet pipe having an inlet solenoid valve (14), the second heat exchange outlet being connected to the water storage tank (5), and the water storage tank (5) being connected to a warm water intake pipe; characterized in that: The water heating assembly includes a first water heating assembly (3) and a second water heating assembly (4). The first heat exchange outlet and the high-temperature water inlet are respectively connected to the water inlet and water outlet of the first water heating assembly (3). The water storage tank (5) is connected to the water inlet of the second water heating assembly (4) through a heat-insulating water supply pipeline (56) and a water flow regulating pump (6). The water outlet of the second water heating assembly (4) is connected to the boiling water intake pipeline and the upper part of the water storage tank (5). The water outlet of the first water heating assembly (3) and the water outlet of the second water heating assembly (4) are respectively equipped with a first water outlet temperature sensor (33) and a second water outlet temperature sensor (42). The water storage tank (5) is also equipped with a low water level detection switch (52) and a heat-insulating water temperature sensor (53).

2. The quick-setting, high-flow commercial warm-water dispenser according to claim 1, characterized in that: The first water heating component (3) includes a first water container (34), a first heating element (31), a water level sensor (32), and a first outlet water temperature sensor (33). The lower and upper parts of the first water container (34) are respectively provided with the water inlet and water outlet of the first water heating component (3). The first outlet water temperature sensor (33) is set on the first water container (34) and close to its outlet. The first heating element (31) is set on the inner bottom of the first water container (34). The upper end of the first heating element (31) extends to the bottom of the outlet of the first water heating component (3). The water level sensor (32) is set on the first water container (34) and located between the upper end of the first outlet water temperature sensor (33) and the first heating element (31). The second water heating component (4) includes a second water container (43), a second heating element (41), and a second outlet water temperature sensor (42). The outlet of the second water heating component (4) includes a boiling water outlet and a heat preservation water outlet. The boiling water outlet is located at the upper part of the second water container (43) and is connected to the boiling water intake pipe. The inlet of the second water heating component (4) is located at the lower part of the second water container (43). The second outlet water temperature sensor (42) is located on the second water container (43) and close to the boiling water outlet. The second heating element (41) is located on the inner bottom of the second water container (43) and the upper end of the second heating element (41) extends to the lower part of the boiling water outlet. The heat preservation water outlet is located at the top of the second water container (43) and is connected to the upper part of the water storage tank (5) through the heat preservation water outlet pipe (47).

3. The quick-build, high-flow commercial warm-water dispenser according to claim 2, characterized in that: The outlet of the first water heating component (3) is connected to the high-temperature water inlet of the heat exchanger (2) through the hot water pipe (39); the top of the first water heating container (34) is also provided with an exhaust port, which is connected to the upper part of the water storage tank (5) through the exhaust pipe (36) and the pressure relief valve (35).

4. The quick-setting, high-flow commercial warm-water dispenser according to claim 1, characterized in that: A high water level detection switch (51) is also provided above the low water level detection switch (52) in the water storage tank (5); the insulated water supply pipeline (56) is connected to the lower part of the water storage tank (5), and the position where the insulated water supply pipeline (56) is connected to the water storage tank (5) is located below the low water level detection switch (52); the insulated water temperature sensor (53) is set at the bottom of the water storage tank (5).

5. The quick-release, high-flow commercial warm water dispenser according to claim 1, characterized in that: The hot water intake pipeline includes a hot water intake pipe (44), a hot water intake solenoid valve (45), and a hot water nozzle (46). The hot water intake pipe (44) is connected to the outlet of the second boiling water heating component (4), and the hot water nozzle (46) is connected to the hot water intake pipe (44) through the hot water intake solenoid valve (45). The warm water intake pipeline includes a warm water intake pipe (7), a maintenance valve (71), a warm water intake solenoid valve (72), and a warm water nozzle (73). The warm water intake pipe (7) is connected to the water storage tank (5) through the maintenance valve (71), and the warm water nozzle (73) is connected to the warm water intake pipe (7) through the warm water intake solenoid valve (72).

6. The quick-build, high-flow commercial warm-water dispenser according to claim 2, characterized in that: The bottom of the first water boiling container (34) is connected to the drain pipe (8) through the first scale discharge pipe (37) and scale discharge valve (38); the bottom of the water storage tank (5) is connected to the drain pipe (8) through the second scale discharge pipe (54) and drain solenoid valve (55).

7. The quick-setting, high-flow commercial warm-water dispenser according to claim 1, characterized in that: The water inlet pipeline includes a water inlet pipe (1), a pressure stabilizing valve (11), a water purification device (12), a flow meter (13), and the water inlet solenoid valve (14). The pressure stabilizing valve (11), the water purification device (12), the flow meter (13), and the water inlet solenoid valve (14) are installed on the water inlet pipe (1). One end of the water inlet pipe (1) is used to connect to the water source, and the other end of the water inlet pipe (1) is connected to the low-temperature water inlet of the heat exchange channel.

8. The quick-setting, high-flow commercial warm-water dispenser according to claim 1, characterized in that: The heat exchanger (2) includes an outer tube (21) and an inner tube (22). The outer tube (21) is fitted outside the inner tube (22). The two ends of the outer tube (21) are the low-temperature water inlet and the first heat exchange outlet, respectively. The two ends of the inner tube (22) are the second heat exchange outlet and the high-temperature water inlet, respectively, corresponding to the two ends of the outer tube (21).

9. The quick-setting, high-flow commercial warm-water dispenser according to claim 1, characterized in that: The water storage tank (5) is an insulated water tank.

10. A control method for a high-flow commercial hot and cold water dispenser according to claim 1, characterized in that: After the initial water and power supply, the inlet solenoid valve (14) is opened to allow water to enter the first water heating component (3). When the water level is close to the outlet of the first water heating component (3) by water level detection, flow detection or water supply time, the inlet solenoid valve (14) is closed and the first water heating component (3) is started. After the water in the first water heating component (3) is heated to the set temperature, the inlet solenoid valve (14) is opened again. The water that has been heated in the first water heating component (3) is heated to the set temperature by the pressure of the newly added water source and then the water is heated to the storage tank (5) by the heat exchanger (2). The first water heating component (3) continuously heats the newly added water source. This cycle continues until the water level in the storage tank (5) reaches the set height and then the heating and water intake stop. When boiling water is needed, a boiling water intake command is sent, the second boiling water heating component (4) is started, the boiling water intake pipeline is opened, and the water flow regulating pump (6) is turned on linearly according to the temperature measured by the second outlet water temperature sensor (42). Boiling water flows out from the water intake pipeline. During the water intake process, the electrical control monitors the outlet water temperature in real time and adjusts the power of the second boiling water heating component (4) and the opening and closing of the water flow regulating pump (6) in a timely manner to ensure the stability of the outlet water temperature. During the process of taking hot water, when the water storage tank (5) is lower than the set water level, the first boiling water heating component (3) and the water inlet solenoid valve (14) are opened to add warm water to the water storage tank (5) to ensure that hot water can be continuously produced. You can use both boiling water and warm water.

Citation Information

Patent Citations

  • Instant constant-temperature constant-current warm and hot water dispenser for school and heating method thereof

    CN106510465A

  • Dual-core large-flux commercial instant heating water dispenser

    CN220069492U