Variable-temperature variable stepping water boiler

Abstract

The utility model relates to the technical field of drinking water equipment, in particular to a variable-temperature variable-quantity stepping water boiler. The water heater comprises a stepping type water tank and an instant heating type pipeline connected with the stepping type water tank, the stepping type water tank comprises a hot water container and a sensor I arranged in the hot water container, and the sensor I is used for detecting the temperature in the hot water container; the instant heating type pipeline comprises a hot water suction pump, an instant heating type module, a sensor I, a sensor III, a flow meter and a water outlet electromagnetic valve. An instant heating type pipeline is additionally arranged on the basis of an original stepping type water tank, so that variable temperature water, boiled water and normal-temperature water are controlled; the temperature is detected through the sensor I in the hot water container, and accurate control over variable-temperature water is achieved in combination with the instant heating type module, the sensor II and the sensor III of the water inlet and the water outlet of the instant heating type module, the flowmeter and the water outlet electromagnetic valve.

Description

Technical Field

[0001] The utility model relates to the technical field of drinking water equipment, in particular to a variable temperature and variable step-by-step water boiler. Background Art

[0002] Existing water heaters usually rely on the method of mixing water when providing variable temperature water, which has significant limitations. First, due to the reliance on continuous water supply, once the water is cut off, the water heater will not be able to continue to discharge water, which brings inconvenience to users. Secondly, the method of mixing water is easily affected by water temperature and water pressure fluctuations, resulting in the difficulty in ensuring the stability of the outlet water temperature. Furthermore, in order to maintain a sufficiently high water temperature in the hot water tank to meet the needs of mixing water, the water heater needs to be heated continuously, which not only increases energy consumption, but also causes unnecessary energy waste. To solve the above technical problems, those skilled in the art have made the following efforts. For example, a Chinese patent, the authorization announcement number is CN205892915U, which discloses a new energy-saving integrated drinking water platform, wherein the hot water solenoid valve is arranged at the hot water outlet of the hot water tank, the output ends of the temperature sensor and the liquid level sensor are respectively connected to the controller, and the output ends of the controller are respectively connected to the water inlet solenoid valve, the hot water solenoid valve, the heat exchanger and the thermocouple of the hot water tank. However, the above solution is too dependent on the heat exchange system and the set temperature of the heat tube. The temperature control is mainly achieved through the heat exchanger and thermocouple, which has certain limitations for the precise control of variable temperature water. Utility Model Content

[0003] The technical problem to be solved by the utility model is to overcome the deficiencies of the prior art and provide a variable temperature and variable step-by-step water boiler.

[0004] The technical solution adopted by the utility model is as follows:

[0005] A variable temperature and variable step-type water boiler, comprising a step-type water tank and an instant heating pipeline connected to the step-type water tank, wherein:

[0006] The step-type water tank comprises a hot water tank and a sensor I arranged in the hot water tank, wherein the sensor I is used to detect the temperature in the hot water tank;

[0007] The instant heating pipeline includes a heat pump, an instant heating module, a sensor I, a sensor III, a flow meter and a water outlet solenoid valve, wherein:

[0008] A heat pump, one end of which is connected to a hot water tank, and the other end of which is connected to an instant heating module;

[0009] The instant heating module is an instant heating heater, and its water inlet is provided with a sensor II for detecting the inlet temperature of the variable temperature water; its water outlet is provided with a sensor III for detecting the outlet temperature of the variable temperature water;

[0010] A flow meter is provided between the instant heating module and the water outlet to detect the flow rate of the variable temperature water;

[0011] The water outlet solenoid valve is arranged between the instant heating module and the flow meter to control the outflow of variable temperature water.

[0012] This technical solution realizes the control of variable temperature water, boiling water and normal temperature water by adding instant heating pipelines on the basis of the original step-by-step water tank; the temperature is detected by sensor I in the hot water tank, combined with the instant heating module and its sensors II and III at the water inlet and outlet, as well as the flow meter and the water outlet solenoid valve, to realize precise control of variable temperature water; the controller receives flow and temperature information to form a variable and variable temperature closed-loop control system for variable temperature water, ensuring the accuracy and stability of the outlet water temperature; the water boiler also has structures such as normal temperature water pipelines and heating pipes for the hot water tank to meet the needs of water at different temperatures; the setting of the water inlet pipeline and the drainage pipeline makes the use of the water boiler more convenient and safe. Among them: sensor I is used to monitor the temperature in the hot water tank in real time, and to control the heating tube to ensure that the water temperature in the hot water tank is maintained within the set range; sensor II detects the inlet temperature of variable temperature water, which is used to adjust the heating power of the instant heating module (instant heating heater) to quickly and accurately heat to the temperature required by the user; sensor III detects the outlet temperature of variable temperature water, which is used to verify the heating effect, ensure that the outlet temperature is consistent with the temperature set by the user, or make fine adjustments to achieve more accurate temperature control. The flow meter detects the flow rate of variable temperature water to ensure the stability of the outlet capacity and realize closed-loop control of the pumping capacity of the heat pump.

[0013] In addition, the variable temperature and variable step-by-step water boiler proposed in the present invention also has the following additional technical features:

[0014] According to one embodiment of the utility model, a controller is provided on the side of the step-by-step water tank, and the controller receives flow information from the flow meter and controls the power of the heat pump to form a variable closed-loop control system for variable temperature water; the controller receives temperature information from sensor I, sensor II, and sensor III and controls the power of the hot water tank and the instant heating module to form a variable temperature closed-loop control system for variable temperature water.

[0015] This technical solution achieves precise control of the flow and temperature of variable temperature water through two closed-loop control systems (variable closed-loop control system and variable temperature closed-loop control system), thereby meeting users' demand for high-quality drinking water. Among them, the variable closed-loop control system of variable temperature water focuses on the flow control of variable temperature water. The flowmeter detects the water flow through the instant heating module in real time and transmits this information to the controller. The controller controls the power of the heat pump according to the received flow information. If the detected flow is small, the controller will increase the power of the heat pump to improve the quantitative accuracy control of water; the variable temperature closed-loop control system of variable temperature water focuses on the temperature control of variable temperature water. Sensors I, II and III respectively detect the temperatures of the hot water tank and the water inlet and outlet of the instant heating module, and transmit this information to the controller. The controller accurately controls the heating power of the hot water tank and the instant heating module according to the received temperature information. If the detected temperature is lower than the preset value, the controller will increase the heating power to speed up the heating of the water; if the temperature is higher than the preset value, the controller will reduce the heating power to avoid excessive water temperature, ensuring that the temperature of the variable temperature water can be accurately maintained within the range set by the user, thereby providing a comfortable drinking experience.

[0016] According to an embodiment of the utility model, the temperature of the variable temperature water is higher than the water temperature in the hot water tank.

[0017] In this technical solution, assuming that the water temperature in the hot water tank is maintained at 60°C, the instant hot module can raise the water temperature to any temperature point between 60°C and 95°C to meet the needs of different users. When sensor I detects that the water temperature in the hot water tank is lower than the preset variable temperature water temperature, the controller will immediately start the instant hot module and control its heating power to ensure that the variable temperature water can be quickly and evenly heated to the target temperature when flowing through the module. At the same time, sensors II and III will monitor the temperature of the water inlet and outlet of the instant hot module in real time to ensure the efficiency and stability of the heating process and ensure that users obtain the ideal variable temperature water temperature. It is worth mentioning that setting the water temperature in the hot water tank at a lower 60°C is not only conducive to the instant hot module to quickly and effectively increase the water temperature, but also can achieve energy saving effects while ensuring a comfortable water supply temperature. It not only optimizes the energy efficiency ratio of the water boiler, but also conforms to the green and environmentally friendly energy-saving concept.

[0018] According to an embodiment of the utility model, the step-by-step water tank further comprises a normal temperature water pipeline, the normal temperature water pipeline comprises a warm water solenoid valve arranged between the water inlet and the water outlet, and the warm water solenoid valve is connected to the controller.

[0019] In this technical solution, the warm water solenoid valve is located between the water inlet and the water outlet. When the controller receives a signal that the user needs normal temperature water, the warm water solenoid valve is opened, and normal temperature water flows into the water inlet and flows through the water outlet, meeting the user's demand for water of different temperatures.

[0020] According to an embodiment of the utility model, the hot water tank further comprises a heating pipe, the heating pipe is arranged at the inner wall of the hot water tank, and the exhaust overflow port is arranged at the top of the hot water tank.

[0021] In this technical solution, when the controller starts the heating function, the heating tube begins to energize and generate heat, transferring heat to the water through heat conduction and convection, causing the water temperature to gradually increase; when the water level in the hot water tank is too high, the water will overflow from the exhaust overflow port, which not only prevents the water from overflowing to the outside of the hot water tank and causing equipment damage or safety hazards, but also serves as a warning signal for excessive water level, reminding the user or the control system to take corresponding measures.

[0022] According to an embodiment of the utility model, the step-by-step water tank further comprises a water inlet pipeline and a drainage pipeline, and the water inlet pipeline and the drainage pipeline are both arranged at the bottom of the step-by-step water tank, wherein:

[0023] A water inlet pipeline, comprising a water inlet, a water inlet solenoid valve, and a check valve connected in sequence;

[0024] A drainage pipeline, including a drainage solenoid valve and a drainage port connected in sequence;

[0025] The water inlet solenoid valve and the drain solenoid valve are respectively connected to the controller.

[0026] In this technical solution, when the controller needs to add water to the water tank, it will open the water inlet solenoid valve to allow water to flow into the water tank from the water inlet; the function of the check valve is to prevent the water in the water tank from flowing back to the external water source when the pressure changes or the external water source stops supplying; when the water tank needs to be emptied or cleaned, the controller will open the drain solenoid valve to allow the water in the water tank to be discharged through the drain port.

[0027] Compared with the prior art, the utility model has the following beneficial effects:

[0028] (1) By adding an instantaneous heating pipeline to the original step-type water tank, the control of variable temperature water, boiling water and normal temperature water can be achieved;

[0029] (2) The temperature is detected by sensor I in the hot water tank, combined with the instant heating module and its sensors II and III at the water inlet and outlet, as well as the flow meter and water outlet solenoid valve, to achieve precise control of variable temperature water. BRIEF DESCRIPTION OF THE DRAWINGS

[0030] Figure 1 It is a structural schematic diagram of the utility model.

[0031] In the figure: 1. Water inlet; 2. Water inlet solenoid valve; 3. Check valve; 4. Hot water tank; 5. Heating tube; 6. Hot water pump; 7. Sensor I; 8. Controller; 9. Sensor II; 10. Instantaneous heating module; 11. Sensor III; 12. Flow meter; 13. Water outlet solenoid valve; 14. Exhaust overflow valve; 15. Water outlet; 16. Drain outlet; 17. Warm water solenoid valve. DETAILED DESCRIPTION

[0032] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments of the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0033] Example 1

[0034] like Figure 1 As shown, this embodiment provides a variable temperature and variable step-type water boiler, including a step-type water tank, and an instant heating pipeline connected to the step-type water tank, wherein:

[0035] The step-type water tank comprises a hot water tank 4 and a sensor Ⅰ7 disposed in the hot water tank 4, wherein the sensor Ⅰ7 is used to detect the temperature in the hot water tank 4;

[0036] The instant heating pipeline includes a heat pump 6, an instant heating module 10, a sensor I 7, a sensor III 11, a flow meter 12 and a water outlet solenoid valve 13, wherein:

[0037] A heat pump 6, one end of which is connected to the hot water tank 4, and the other end of which is connected to the instant heating module 10;

[0038] The instant heating module 10 is an instant heating heater, and its water inlet 1 is provided with a sensor II 9 for detecting the inlet temperature of the variable temperature water; its water outlet 15 is provided with a sensor III 11 for detecting the outlet temperature of the variable temperature water;

[0039] A flow meter 12, which is disposed between the instant heating module 10 and the water outlet 15, and is used to detect the flow rate of the variable temperature water;

[0040] The water outlet solenoid valve 13 is disposed between the instant heating module 10 and the flow meter 12 to control the outflow of the variable temperature water.

[0041] like Figure 1As shown, the technical solution realizes the control of variable temperature water, boiling water and normal temperature water by adding instant heating pipelines on the basis of the original step-by-step water tank; the temperature is detected by the sensor Ⅰ7 in the hot water tank 4, combined with the instant heating module 10 and the sensors Ⅱ9 and Ⅲ11 of the water inlet 1 and the water outlet 15, as well as the flow meter 12 and the water outlet solenoid valve 13, to realize the precise control of variable temperature water; the flow rate and temperature information are received by the controller 8 to form a variable and variable temperature closed-loop control system for variable temperature water to ensure the accuracy and stability of the outlet water temperature; the water boiler also has structures such as a normal temperature water pipeline and a heating tube 5 of the hot water tank 4 to meet the needs of water at different temperatures; the setting of the water inlet pipeline and the drainage pipeline makes the use of the water boiler more convenient and safe. Among them: sensor Ⅰ7 is used to monitor the temperature in the hot water tank 4 in real time, and to control the heating tube 5 to ensure that the water temperature in the hot water tank 4 is maintained within the set range; sensor Ⅱ9 detects the inlet temperature of the variable temperature water, and is used to adjust the heating power of the instant heating module 10 (instant heating heater) to quickly and accurately heat to the temperature required by the user; sensor Ⅲ11 detects the outlet temperature of the variable temperature water, and is used to verify the heating effect, ensure that the outlet temperature is consistent with the temperature set by the user, or make fine adjustments to achieve more accurate temperature control. The flow meter 12 detects the flow rate of the variable temperature water, ensures the stability of the outlet capacity, and realizes the closed-loop control of the pumping capacity of the heat pump 6.

[0042] In addition, the variable temperature and variable step-by-step water boiler proposed in the present invention also has the following additional technical features:

[0043] According to one embodiment of the utility model, a controller 8 is provided on the side of the step-by-step water tank, and the controller 8 receives flow information from the flow meter 12 and controls the power of the heat pump 6, thereby forming a variable closed-loop control system for variable temperature water; the controller 8 receives temperature information from the sensor Ⅰ7, the sensor Ⅱ9, and the sensor Ⅲ11 and controls the power of the hot water tank 4 and the instant heating module 10, thereby forming a variable temperature closed-loop control system for variable temperature water.

[0044] This technical solution achieves precise control of the flow and temperature of variable temperature water through two closed-loop control systems (variable closed-loop control system and variable temperature closed-loop control system), thereby meeting users' demand for high-quality drinking water. Among them, the variable closed-loop control system of variable temperature water focuses on the flow control of variable temperature water. The flow meter 12 detects the water flow through the instant heating module 10 in real time and transmits this information to the controller 8. The controller 8 controls the power of the heat pump 6 according to the received flow information. If the detected flow is small, the controller 8 will increase the power of the heat pump 6 to improve the water quantitative precision control; the variable temperature closed-loop control system of variable temperature water focuses on the temperature control of variable temperature water. Sensor I7, sensor II9, and sensor III11 respectively detect the temperature of the hot water tank 4, the water inlet 1 and the water outlet 15 of the instant heating module 10, and transmit this information to the controller 8. The controller 8 accurately controls the heating power of the hot water tank 4 and the instant heating module 10 according to the received temperature information. If the detected temperature is lower than the preset value, the controller 8 will increase the heating power to speed up the heating speed of the water; if the temperature is higher than the preset value, the controller 8 will reduce the heating power to avoid excessive water temperature, ensuring that the temperature of the variable temperature water can be accurately maintained within the range set by the user, thereby providing a comfortable drinking experience.

[0045] According to an embodiment of the present invention, the temperature of the variable temperature water is higher than the water temperature in the hot water tank 4.

[0046] In this technical solution, assuming that the water temperature in the hot water tank 4 is maintained at 60°C, the instant heating module 10 can raise the water temperature to any temperature point between 60°C and 95°C to meet the needs of different users. When the sensor Ⅰ7 detects that the water temperature in the hot water tank 4 is lower than the preset variable temperature water temperature, the controller 8 will immediately start the instant heating module 10 and control its heating power to ensure that the variable temperature water can be quickly and evenly heated to the target temperature when flowing through the module. At the same time, the sensor Ⅱ9 and the sensor Ⅲ11 will monitor the temperature of the water inlet and outlet 15 of the instant heating module 10 in real time to ensure the efficiency and stability of the heating process and ensure that the user obtains the ideal variable temperature water temperature. It is worth mentioning that setting the water temperature in the hot water tank 4 at a lower 60°C is not only conducive to the instant heating module 10 to quickly and effectively increase the water temperature, but also can achieve energy saving effects while ensuring that the water supply temperature is comfortable, which not only optimizes the energy efficiency ratio of the water boiler, but also conforms to the green and environmentally friendly energy saving concept.

[0047] According to an embodiment of the utility model, the step-by-step water tank further includes a normal temperature water pipeline, which includes a warm water solenoid valve 17 disposed between the water inlet 1 and the water outlet 15 , and the warm water solenoid valve 17 is connected to the controller 8 .

[0048] In this technical solution, the warm water solenoid valve 17 is located between the water inlet 1 and the water outlet 15. When the controller 8 receives a signal that the user needs normal temperature water, the warm water solenoid valve 17 is opened, and normal temperature water flows into the water inlet 1 and flows through the water outlet 15, thereby meeting the user's demand for water of different temperatures.

[0049] According to an embodiment of the present invention, the hot water container 4 further includes a heating tube 5 , which is arranged on the inner wall of the hot water container 4 , and the exhaust overflow port is arranged on the top of the hot water container 4 .

[0050] In the present technical solution, when the controller 8 starts the heating function, the heating tube 5 starts to be powered on and generates heat, and transfers heat to the water by heat conduction and convection, so that the water temperature gradually increases; when the water level in the hot water tank 4 is too high, the water will overflow from the exhaust overflow port, which not only prevents the water from overflowing to the outside of the hot water tank 4 and causing equipment damage or safety hazards, but also serves as a warning signal for excessive water level, reminding the user or the control system to take corresponding measures.

[0051] According to an embodiment of the utility model, the step-by-step water tank further comprises a water inlet pipeline and a drainage pipeline, and the water inlet pipeline and the drainage pipeline are both arranged at the bottom of the step-by-step water tank, wherein:

[0052] The water inlet pipeline comprises a water inlet 1, a water inlet solenoid valve 2, and a check valve 3 which are connected in sequence;

[0053] A drainage pipeline, including a drainage solenoid valve and a drainage port 16 connected in sequence;

[0054] The water inlet solenoid valve 2 and the water discharge solenoid valve are connected to the controller 8 respectively.

[0055] In this technical solution, when the controller 8 needs to add water to the water tank, it will open the water inlet solenoid valve 2 to allow water to flow into the water tank from the water inlet 1; the function of the check valve 3 is to prevent the water in the water tank from flowing back to the external water source when the pressure changes or the external water source stops supplying; when the water tank needs to be emptied or cleaned, the controller 8 will open the drain solenoid valve to allow the water in the water tank to be discharged through the drain port 16.

[0056] The usage process of the above embodiment is as follows:

[0057] like Figure 1As shown, first, the variable temperature water heating process: when variable temperature water is needed, the controller 8 first controls the water inlet pipeline through the water inlet solenoid valve 2 to allow external water to enter the hot water tank 4; the hot water pump 6 extracts hot water from the hot water tank 4, and when the extracted hot water passes through the instant heating module 10, the controller 8 adjusts the heating power of the instant heating module 10 according to the feedback information of the sensor II 9 (water inlet 1 temperature) and the sensor III 11 (water outlet 15 temperature), and raises the temperature of the hot water to the variable temperature water temperature set by the user in a very short time; the flow meter 12 detects the water flow through the instant heating module 10 and transmits the information to the controller 8, and the controller 8 adjusts the power of the hot water pump 6 and the heating power of the instant heating module 10 according to the flow and temperature information to realize the variable and variable temperature closed-loop control of the variable temperature water; when the variable temperature water reaches the preset temperature, the controller 8 controls the water outlet solenoid valve 13 to open, allowing the variable temperature water to flow out. Similarly, the boiling water heating process is to heat to 100°C based on the variable temperature water heating process.

[0058] Secondly, the normal temperature water supply process: when normal temperature water is needed, the controller 8 controls the normal temperature water pipeline through the warm water solenoid valve 17. If there is normal temperature water in the water tank, it is directly supplied through the normal temperature water pipeline. Since normal temperature water does not need to be heated, normal temperature water can be directly supplied to the user by controlling the switch of the warm water solenoid valve 17.

[0059] Although the utility model is described in detail by referring to the accompanying drawings and in combination with the preferred embodiments, the utility model is not limited thereto. Without departing from the spirit and essence of the utility model, ordinary technicians in the field can make various equivalent modifications or substitutions to the embodiments of the utility model, and these modifications or substitutions should be within the scope of the utility model / any technician familiar with the technical field can easily think of changes or substitutions within the technical scope disclosed by the utility model, which should be included in the protection scope of the utility model. Therefore, the protection scope of the utility model shall be based on the protection scope of the claims.

Claims

1. A variable temperature and variable step-by-step water boiler, characterized in that: It includes a step-by-step water tank and an instant heating pipeline connected to the step-by-step water tank, wherein: A step-by-step water tank, comprising a hot water tank (4) and a sensor I (7) disposed in the hot water tank (4), wherein the sensor I (7) is used to detect the temperature in the hot water tank (4); The instant heating pipeline comprises a heat pump (6), an instant heating module (10), a sensor I (7), a sensor III (11), a flow meter (12) and a water outlet electromagnetic valve (13), wherein: A heat pump (6), one end of which is connected to the hot water tank (4) and the other end of which is connected to the instant heating module (10); The instant heating module (10) is an instant heating heater, wherein the water inlet (1) is provided with a sensor II (9) for detecting the inlet temperature of the variable temperature water; and the water outlet (15) is provided with a sensor III (11) for detecting the outlet temperature of the variable temperature water. A flow meter (12) is disposed between the instant heating module (10) and the water outlet (15) and is used to detect the flow rate of the variable temperature water; The water outlet solenoid valve (13) is arranged between the instant heating module (10) and the flow meter (12) and is used to control the outflow of the variable temperature water.

2. A variable temperature and variable step-by-step water boiler as claimed in claim 1, characterized in that: A controller (8) is provided on the side of the step-by-step water tank. The controller (8) receives flow information from a flow meter (12) and controls the power of a heat pump (6), thereby forming a variable closed-loop control system for variable temperature water. The controller (8) receives temperature information from sensors I (7), II (9), and III (11) and controls the power of a hot water tank (4) and an instant heating module (10), thereby forming a variable temperature closed-loop control system for variable temperature water.

3. A variable temperature and variable step-by-step water boiler as claimed in claim 1 or 2, characterized in that: The temperature of the variable temperature water is higher than the water temperature in the hot water tank (4).

4. A variable temperature and variable step-by-step water boiler as claimed in claim 3, characterized in that: The step-type water tank further comprises a normal temperature water pipeline, the normal temperature water pipeline comprises a warm water solenoid valve (17) arranged between the water inlet (1) and the water outlet (15), and the warm water solenoid valve (17) is connected to the controller (8).

5. A variable temperature and variable step-by-step water boiler as claimed in claim 1, characterized in that: The hot water container (4) further comprises a heating pipe (5) and an exhaust overflow port, wherein the heating pipe (5) is arranged on the inner wall of the hot water container (4), and the exhaust overflow port is arranged on the top of the hot water container (4).

6. A variable temperature and variable step-by-step water boiler as claimed in claim 2, characterized in that: The step-by-step water tank further comprises a water inlet pipeline and a drainage pipeline, both of which are arranged at the bottom of the step-by-step water tank, wherein: A water inlet pipeline comprises a water inlet (1), a water inlet solenoid valve (2), and a check valve (3) which are connected in sequence; A drainage pipeline, comprising a drainage solenoid valve and a drainage port (16) connected in sequence; The water inlet solenoid valve (2) and the water discharge solenoid valve are respectively connected to the controller (8).

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