A temperature control and regulation system and an energy-saving water boiler incorporating the temperature control and regulation system

Abstract

The present invention relates to the technical field of temperature control and regulation, and provides a temperature control and regulation system and an energy-saving water dispenser including the temperature control and regulation system, which include: a heating module, a high-temperature module, a medium-temperature module, a water injection module, and an intelligent control system; the water injection module is used to inject water into the heating module; the heating module is used to heat the injected water; the water heated by the heating module can flow to the high-temperature module and the medium-temperature module; the steam generated by heating the heating module and the high-temperature module can be transferred to the medium-temperature module to maintain the water storage temperature of the medium-temperature module; the water injected by the water injection module into the heating module is directly connected cold water from the outside, or water preheated by the medium-temperature module; the high-temperature module is used to provide hot water, and the medium-temperature module is used to provide warm water; the intelligent control system is used to control the heating module, the high-temperature module, the medium-temperature module, and the water injection module. The present invention reduces the operating energy consumption of the main heating link, effectively reduces the energy consumption, and significantly improves the energy conversion efficiency.

Description

Technical Field

[0001] The present invention relates to the field of temperature control and regulation systems, and particularly to a temperature control and regulation system and an energy-saving water dispenser including the temperature control and regulation system. Background Art

[0002] In traditional temperature control and regulation systems, warm water is usually provided by boiling water and then allowing it to cool naturally. This method not only results in up to 63.2 - 75% of the heat energy converted from electrical energy being wasted, but also has a relatively high energy consumption during the water production process, not meeting the requirements of modern energy conservation and environmental protection. In addition, traditional water dispensers lack an effective heat energy recovery and utilization mechanism when providing warm water, resulting in low heat energy utilization efficiency. At the same time, in the existing system during high-temperature water supply, due to the lack of a temperature regulation mechanism, accidental events such as scalding are likely to occur.

[0003] Therefore, developing a temperature control and regulation system and its energy-saving water dispenser that can efficiently utilize heat energy, provide multi-temperature water supply, and have a self-cleaning function has become an urgent problem to be solved currently. Summary of the Invention

[0004] In view of the above technical problems, the present invention provides a temperature control and regulation system and an energy-saving water dispenser including the temperature control and regulation system, aiming to preheat raw water with the heat exchanged by optimizing the internal structure of the water tank and the heat exchange mechanism, reducing the energy consumption in the boiling link; setting heaters in the high / middle-temperature water tanks, which can not only maintain the water temperature during use, but also heat and disinfect the inside of the tank during non-use periods such as at night, and improve the reliability of safe water supply of the product by self-cleaning; the energy-saving water dispenser can achieve multi-temperature water supply, while improving the energy utilization efficiency, reducing the risk of scalding accidents.

[0005] The present invention provides a temperature control and regulation system, including: a heating module, a high-temperature module, a middle-temperature module, a water injection module, and an intelligent control system;

[0006] The water injection module is used to inject water into the heating module; the heating module is used to heat the injected water; the water heated by the heating module can flow to the high-temperature module and the middle-temperature module; the high-temperature module and the middle-temperature module can reheat the water flowing into them;

[0007] The steam generated by the heating module and the high-temperature module can be transferred to the middle-temperature module to maintain the water storage temperature of the middle-temperature module; the water injected by the water injection module into the heating module is either directly connected cold water from the outside or water preheated by the middle-temperature module;

[0008] The high-temperature module is used to provide hot water, and the middle-temperature module is used to provide warm water; the intelligent control system is used to control the heating module, the high-temperature module, the middle-temperature module, and the water injection module.

[0009] Optionally, the heating module is arranged on the upper side of the high-temperature module, and the medium-temperature module is arranged on the right side of the heating module;

[0010] The heating module includes a heating water tank, a heating water tank heater, a heating water tank steam pipe, a heating water tank temperature indicating controller, and a heating water tank liquid level indicating controller; the high-temperature module includes a high-temperature water tank, a high-temperature water tank heater, a high-temperature water tank water inlet pipe, a high-temperature water tank water inlet valve, a high-temperature water tank steam pipe, a high-temperature water tank temperature indicating controller, and a high-temperature water tank liquid level indicating controller; the medium-temperature module includes a medium-temperature water tank, a medium-temperature water tank heater, a medium-temperature water tank water inlet pipe, a medium-temperature water tank water inlet valve, a medium-temperature water tank temperature indicating controller, and a medium-temperature water tank liquid level indicating controller.

[0011] Optionally, the water injection module includes a cold water inlet main pipe, a cold water inlet pipe, a cold water inlet valve, a preheating inlet pipe, and a preheating inlet valve; the cold water inlet main pipe is connected to the cold water inlet pipe via the cold water inlet valve, and the cold water inlet pipe is arranged at the top of the heating water tank; the cold water inlet main pipe is communicated with the preheating inlet pipe via the preheating inlet valve, the main part of the preheating inlet pipe is arranged inside the medium-temperature water tank, and the outlet part of the preheating inlet pipe is arranged at the top of the heating water tank.

[0012] Optionally, the air inlet of the heating water tank steam pipe is located on the upper side of the heating water tank, the air outlet of the heating water tank steam pipe is located on the upper side of the medium-temperature water tank, and the heating water tank steam pipe communicates with the inside of the heating water tank and the medium-temperature water tank; the air inlet of the high-temperature water tank steam pipe is located on the upper side of the high-temperature water tank, the air outlet of the high-temperature water tank steam pipe is located on the upper side of the medium-temperature water tank, and the high-temperature water tank steam pipe communicates with the inside of the high-temperature water tank and the medium-temperature water tank;

[0013] The high-temperature water tank water inlet pipe communicates with the inside of the heating water tank and the high-temperature water tank, and the high-temperature water tank water inlet valve is arranged in the middle of the high-temperature water tank water inlet pipe; the medium-temperature water tank water inlet pipe communicates with the inside of the heating water tank and the medium-temperature water tank, and the medium-temperature water tank water inlet valve is arranged in the middle of the medium-temperature water tank water inlet pipe;

[0014] The heating water tank can be filled with water in two ways, namely through the cold water inlet pipe and the preheating inlet pipe; the high-temperature water tank is filled with water through the high-temperature water tank water inlet pipe; the medium-temperature water tank is filled with water through the medium-temperature water tank water inlet pipe; the steam generated by heating the heating water tank and the high-temperature water tank is concentrated in the upper space of the medium-temperature water tank, and heat will be released during the liquefaction process of the steam. The water in the medium-temperature water tank recycles this heat to maintain the water storage temperature of the medium-temperature water tank.

[0015] Optionally, the main body part of the preheating water inlet pipe is a preheating coil pipe, which includes a vertically arranged pipe and a spiral coil pipe connected in communication. The vertically arranged pipe is arranged in the middle inside the spiral coil pipe. The water inlet end of the vertically arranged pipe is communicated with the preheating water inlet valve, and the water outlet end of the spiral coil pipe is communicated with the water outlet part of the preheating water inlet pipe.

[0016] Optionally, a T-shaped pipe is arranged at the outlets of the heating water tank steam pipe and the high-temperature water tank steam pipe. A first valve is arranged in the middle of the T-shaped pipe, and a second valve is arranged at the outlet of the T-shaped pipe; the second valve is connected with an elastic pipe, and the elastic pipe is communicated with the float exhaust module; the float exhaust module is slidably sleeved outside the vertically arranged pipe, and the float exhaust module is an annular hollow float with exhaust holes arranged at its bottom; the float exhaust module floats in water and moves with the movement of the water level.

[0017] Optionally, the high-temperature module includes a high-temperature water intake valve arranged at the bottom of the high-temperature water tank; the medium-temperature module includes a medium-temperature water intake valve arranged at the bottom of the medium-temperature water tank.

[0018] Optionally, the medium-temperature module includes a medium-temperature water tank safety valve arranged on the upper side of the medium-temperature water tank.

[0019] Optionally, the heating module includes a heating water tank blowdown valve, the high-temperature module includes a high-temperature water tank blowdown valve, and the medium-temperature module includes a medium-temperature water tank blowdown valve.

[0020] An energy-saving water dispenser including the above temperature control and regulation system comprises: a hot water intake module, a warm water intake module, and a display and control module; the hot water intake module is communicated with the high-temperature water intake valve, the warm water intake module is communicated with the medium-temperature water intake valve, and the display and control module is used for setting and monitoring the parameters of the temperature control and regulation system.

[0021] Compared with the prior art, the present invention has achieved the following technical effects:

[0022] By optimizing the internal structure of the water tank and the heat exchange mechanism, the present invention uses the exchanged heat for preheating raw water, effectively reducing the energy consumption in the boiling process and significantly improving the energy conversion efficiency. The settings of the high-temperature module and the medium-temperature module not only achieve multi-temperature water supply to meet the needs of different users, but also reduce the occurrence of scalding accidents through the temperature regulation mechanism. The temperature control and regulation system can heat the water to 100 °C to boil, effectively sterilize, and the water quality is safe and reliable; it can reduce the boiling water to a suitable temperature and supply it according to the expected water temperature and time pattern of the served population; reduce the supply of unnecessary high-temperature water, and correspondingly reduce the occurrence of accidents such as scalding; the heat released during the cooling process of the boiling water is used for preheating the raw water to be heated, thereby reducing the operating energy consumption in the main heating process, and the energy is reused within the system, thus improving the energy conversion efficiency. In addition, the water tank is heated and disinfected during non-use periods such as at night, improving the reliability of safe water supply of the product. The energy-saving water heater of the present invention has automatic sewage discharge and self-cleaning functions, effectively extending the service life of the equipment and reducing the maintenance cost.

[0023] In summary, the present invention performs excellently in terms of energy conservation and environmental protection, safety and reliability, and convenient operation, and has broad application prospects. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] Figure 1 FIG. is a schematic structural diagram of a temperature control and regulation system provided by an embodiment of the present invention;

[0025] Figure 2 FIG. is a schematic side view of a temperature control and regulation system provided by an embodiment of the present invention;

[0026] Figure 3 FIG. is a schematic diagram of the internal structure of a temperature control and regulation system provided by an embodiment of the present invention;

[0027] Figure 4 FIG. is a schematic diagram of the back structure of a temperature control and regulation system provided by an embodiment of the present invention;

[0028] Figure 5 FIG. is a schematic structural diagram of a preheating coil and a float exhaust module in a temperature control and regulation system provided by an embodiment of the present invention;

[0029] Figure 6 FIG. is a schematic structural diagram of an energy-saving water heater provided by an embodiment of the present invention.

[0030] The realization, functional features, and advantages of the object of the present invention will be further described with reference to the embodiments and the accompanying drawings. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0031] It should be understood that the specific embodiments described herein are only used to explain the present invention and are not used to limit the present invention.

[0032] AsFigures 1-5 As shown in Figures 1-5 , an embodiment of the present invention provides a temperature control and regulation system, including: a heating module 1, a high-temperature module 2, a medium-temperature module 3, a water injection module 4, and an intelligent control system 5;

[0033] The water injection module 4 is used to inject water into the heating module 1; the heating module 1 is used for heating the injected water; the water heated by the heating module 1 can flow to the high-temperature module 2 and the medium-temperature module 3; the high-temperature module 2 and the medium-temperature module 3 can reheat the flowing-in water;

[0034] The steam generated by heating the heating module 1 and the high-temperature module 2 can be transferred to the medium-temperature module 3 to maintain the water storage temperature of the medium-temperature module 3; the water injected by the water injection module 4 into the heating module 1 is directly connected external cold water (0 - 30°C), or the water preheated by the medium-temperature module 3;

[0035] The high-temperature module 2 is used to provide hot water (water temperature 90 - 100°C), and the medium-temperature module 3 is used to provide warm water (water temperature 40 - 50°C); the intelligent control system 5 is used to control the heating module 1, the high-temperature module 2, the medium-temperature module 3, and the water injection module 4. The settings of the high-temperature module 2 and the medium-temperature module 3 facilitate the water dispenser to provide multi-temperature water supply, meeting the needs of different users. At the same time, by precisely controlling the heating and water supply of each module through the intelligent control system 5, it is possible to effectively reduce the supply of unnecessary high-temperature water, thereby reducing the occurrence of scalding accidents and improving the safety of use.

[0036] Optionally, the heating module 1 is arranged above the high-temperature module 2, and the medium-temperature module 3 is arranged on the right side of the heating module 1.

[0037] The heating module 1 includes a heating water tank 11, a heating water tank heater 12, a heating water tank steam pipe 13, a heating water tank temperature indicating controller 14, and a heating water tank liquid level indicating controller 15; the high-temperature module 2 includes a high-temperature water tank 21, a high-temperature water tank heater 22, a high-temperature water tank water inlet pipe 23, a high-temperature water tank water inlet valve 24, a high-temperature water tank steam pipe 25, a high-temperature water tank temperature indicating controller 26, and a high-temperature water tank liquid level indicating controller 27; the medium-temperature module 3 includes a medium-temperature water tank 31, a medium-temperature water tank heater 32, a medium-temperature water tank water inlet pipe 33, a medium-temperature water tank water inlet valve 34, a medium-temperature water tank temperature indicating controller 35, and a medium-temperature water tank liquid level indicating controller 36.

[0038] The water injection module 4 includes a cold water inlet main pipe 41, a cold water inlet pipe 42, a cold water inlet valve 43, a preheating inlet pipe 44, and a preheating inlet valve 45; the cold water inlet main pipe 41 is connected to the cold water inlet pipe 42 via the cold water inlet valve 43, and the cold water inlet pipe 42 is arranged at the top of the heating water tank 11; the cold water inlet main pipe 41 is communicated with the preheating inlet pipe 44 via the preheating inlet valve 45, the main part of the preheating inlet pipe 44 is arranged inside the medium-temperature water tank 31, and the water outlet part of the preheating inlet pipe 44 is arranged at the top of the heating water tank 11;

[0039] The air inlet of the heating water tank steam pipe 13 is located on the upper side of the heating water tank 11, the air outlet of the heating water tank steam pipe 13 is located on the upper side of the medium-temperature water tank 31, and the heating water tank steam pipe 13 communicates with the interiors of the heating water tank 11 and the medium-temperature water tank 31; the air inlet of the high-temperature water tank steam pipe 25 is located on the upper side of the high-temperature water tank 21, the air outlet of the high-temperature water tank steam pipe 25 is located on the upper side of the medium-temperature water tank 31, and the high-temperature water tank steam pipe 25 communicates with the interiors of the high-temperature water tank 21 and the medium-temperature water tank 31.

[0040] The high-temperature water tank inlet pipe 23 communicates with the interiors of the heating water tank 11 and the high-temperature water tank 21, and the high-temperature water tank inlet valve 24 is arranged in the middle of the high-temperature water tank inlet pipe 23; the medium-temperature water tank inlet pipe 33 communicates with the interiors of the heating water tank 11 and the medium-temperature water tank 31, and the medium-temperature water tank inlet valve 34 is arranged in the middle of the medium-temperature water tank inlet pipe 33.

[0041] The heating water tank 11 can be filled with water in two ways, namely through the cold water inlet pipe 42 and the preheating inlet pipe 44; the high-temperature water tank 21 is filled with water through the high-temperature water tank inlet pipe 23; the medium-temperature water tank 31 is filled with water through the medium-temperature water tank inlet pipe 33; the steam generated by heating the heating water tank 11 and the high-temperature water tank 21 is concentrated in the upper space of the medium-temperature water tank 31, and heat will be released during the liquefaction process of the steam, and the water in the medium-temperature water tank 31 recycles this heat to maintain the water storage temperature of the medium-temperature water tank 31.

[0042] In the present invention, the steam generated by the heating module and the high-temperature module is transferred to the medium-temperature module to maintain the water storage temperature of the medium-temperature module. This innovative design makes full use of the heat released during the cooling process of boiling water, effectively preheats the raw water to be heated, not only reduces the operating energy consumption of the main heating link, but also improves the energy conversion efficiency, realizing the recycling of heat energy.

[0043] The built-in heating water tank heater 12 is the main heater, and the built-in high-temperature water tank heater 22 and medium-temperature water tank heater 32 are auxiliary heaters; the liquid level indicating controllers and temperature indicating controllers of each water tank are used to collect the water level and water temperature data inside the water tank and feedback them to the intelligent control system 5, so as to adopt algorithm optimization, adjust the operation plan immediately, and automatically control the actions of each water inlet valve; the high-temperature water tank inlet valve and medium-temperature water tank inlet valve can be automatically opened and closed to realize the injection of heated boiling water into the high-temperature water tank and medium-temperature water tank; the liquid level indicating controllers and temperature indicating controllers located in each water tank transmit signals to the intelligent control system 5, and after calculation and optimization, the intelligent control system 5 issues opening and closing and other actions to each water inlet valve. The preheating water inlet pipe 44 built in the medium-temperature water tank 31 is used to preheat the raw water entering the heating water tank 11, adjust the heat exchange time by adjusting the opening and closing interval of the preheating water inlet and the valve opening, and intermittently inject water into the heating water tank 11.

[0044] Optionally, the main part of the preheating water inlet pipe 44 is a preheating coil 46. The preheating coil 46 includes a vertically arranged pipe and a spiral coil that are connected in communication. The vertically arranged pipe is arranged in the middle inside the spiral coil. The water inlet end of the vertically arranged pipe is communicated with the preheating water inlet valve 45, and the water outlet end of the spiral coil is communicated with the water outlet part of the preheating water inlet pipe 44.

[0045] Optionally, a T-shaped pipe 6 is provided at the outlets of the heating water tank steam pipe 13 and the high-temperature water tank steam pipe 25. A first valve 61 is provided in the middle of the T-shaped pipe 6, and a second valve 62 is provided at the outlet of the T-shaped pipe 6; the second valve 62 is connected with an elastic pipe 7, and the elastic pipe 7 is communicated with the float exhaust module 8; the float exhaust module 8 is slidably sleeved outside the vertically arranged pipe. The float exhaust module 8 is an annular hollow float, and exhaust holes are provided at its bottom; the float exhaust module 8 floats in water and moves with the movement of the water level.

[0046] By controlling the opening and closing of the first valve 61 and the second valve 62, the steam discharge method can be selected. The steam can be directly discharged from the first valve 61, or can be directly discharged from the second valve 62 through the exhaust holes of the float exhaust module 8 to the inside of the spiral coil; during water injection, since the water temperature in the spiral coil is lower than the water temperature in the medium-temperature water tank, the heat exchange efficiency of the water in the spiral coil can be accelerated by immersing and exhausting inside the spiral coil.

[0047] Optionally, the high-temperature module 2 includes a high-temperature water intake valve 28, and the high-temperature water intake valve 28 is provided at the bottom of the high-temperature water tank 21; the medium-temperature module 3 includes a medium-temperature water intake valve 37, and the medium-temperature water intake valve 37 is provided at the bottom of the medium-temperature water tank 31.

[0048] Optionally, the medium-temperature module 3 includes a medium-temperature water tank safety valve 38, which is disposed on the upper side of the medium-temperature water tank 31. The medium-temperature water tank safety valve 38 is used to maintain the pressure balance of each water tank and keep it within a controllable pressure range.

[0049] Optionally, the heating module 1 includes a heating water tank drain valve 16, the high-temperature module 2 includes a high-temperature water tank drain valve 29, and the medium-temperature module 3 includes a medium-temperature water tank drain valve 37. The water tank drain valves can regularly remove scale, impurities, etc. from the water tanks.

[0050] Optionally, the spiral coil of the preheating coil 46 is in a U-shaped circular spiral shape, and the material is stainless steel SUS304.

[0051] Optionally, the cold water inlet main pipe 41, the preheating inlet pipe 44, the cold water inlet pipe 42, the high-temperature water tank inlet pipe 23, the medium-temperature water tank inlet pipe 33, the heating water tank steam pipe 13, and the high-temperature water tank vent pipe 25 are made of stainless steel SUS304.

[0052] Optionally, the cold water inlet valve 43, the high-temperature water tank inlet valve 24, and the medium-temperature water tank inlet valve 34 are solenoid valves, which are two-position valves and can perform fully open and fully closed actions.

[0053] Optionally, the preheating inlet valve 45 is a solenoid valve, which is a three-position valve. In addition to performing fully open and fully closed actions, the valve core can be in the middle position to adjust the water inlet flow rate.

[0054] Optionally, the heating water tank drain valve 16, the high-temperature water tank drain valve 29, and the medium-temperature water tank drain valve 37 are automatic drain electric ball valves.

[0055] Optionally, the medium-temperature water tank safety valve 38 is a pressure relief safety valve, and a labyrinth channel pressure relief cover is provided outside, and the finally relieved gas faces the unoccupied side.

[0056] Optionally, heat-insulating filling materials are provided on the outer sides of the heating module 1, the high-temperature module 2, and the medium-temperature module 3.

[0057] Optionally, the heating water tank temperature indicating controller 14, the high-temperature water tank temperature indicating controller 26, and the medium-temperature water tank temperature indicating controller 35 are digital display temperature controllers, which can feedback the water temperature information to the intelligent control system 5 and centrally reflect it together with other display information on the display control module on the front of the water dispenser.

[0058] Optionally, the heating water tank liquid level indicating controller 15, the high-temperature water tank liquid level indicating controller 27, and the medium-temperature water tank liquid level indicating controller 36 are photoelectric water level sensors, which feedback the water level information to the intelligent control system 5 and centrally reflect it together with other display information on the display control module on the front of the water dispenser.

[0059] The intelligent control system 5 collects the water level and water temperature data of each water tank, combines it with algorithm optimization, adjusts the operation plan in real time, and automatically controls the action of each water inlet valve. This intelligent control method makes the operation of the water boiler more efficient and energy-saving, and also improves the user experience.

[0060] like Figure 6 As shown, one embodiment of the present invention provides an energy-saving water boiler including the above-mentioned temperature control and regulation system, including: a hot water intake module, a warm water intake module and a display control module; the hot water intake module is connected to the high-temperature water intake valve 28, the warm water intake module is connected to the medium-temperature water intake valve 37, and the display control module is used for setting and monitoring the parameters of the temperature control and regulation system.

[0061] An embodiment of the present invention provides an operation control method of an energy-saving water boiler including the above-mentioned temperature control and regulation system, comprising:

[0062] S1: Before the first use, preset the daily working hours of the water boiler and the peak water usage hours, such as T1-TA, T2-TB, T3-TC, etc. during the breaks in the teaching building, and preset the water storage capacity of the high-temperature water tank 21 and the medium-temperature water tank 31 during each peak water usage period; check the status of each valve to make the heating water tank drain valve 16, the high-temperature water tank drain valve 29, the medium-temperature water tank drain valve 37, the preheating water inlet valve 45, the high-temperature water tank water inlet valve 24, and the medium-temperature water tank water inlet valve 34 in the closed state.

[0063] S2: Automatically open the cold water inlet valve 43, and the raw water is injected into the heating water tank 11 through the cold water inlet main pipe 41 and the cold water inlet pipe 42. When the water level reaches the lowest water level of the heating water tank, the heating water tank heater 12 is powered on to heat the raw water in the tank and continue to inject water until the highest water level of the heating water tank 11 is reached. The cold water inlet valve 43 is automatically closed according to the water level indicated by the heating water tank liquid level indicating controller 15. The water temperature of the heating water tank 11 is observed through the heating water tank temperature indicating controller 14. After the water temperature rises to 100°C and lasts for 5 seconds, the power is automatically turned off to stop heating.

[0064] S3: Open the medium-temperature water tank inlet valve 34, and the boiling water in the heating water tank enters the medium-temperature water tank 31. When the water level of the heating water tank 11 drops to the lowest water level of the heating water tank, the heating water tank liquid level indication controller 15 automatically closes the medium-temperature water tank inlet valve 34, and automatically opens the preheating water inlet valve 45 after an interval of 2s. Raw water is injected into the heating water tank 11 through the cold water inlet main pipe 41 and the preheating water inlet pipe 44. When the water level reaches 5cm above the lowest water level of the heating water tank, the heating water tank heater 12 is powered on to heat the raw water in the tank, and water is continuously injected until the highest water level of the heating water tank is reached, and the preheating water inlet valve 45 is automatically closed by the heating water tank liquid level indication controller 15; the water temperature of the heating water tank 11 is observed by the heating water tank temperature indication controller 14, and the water temperature rises to 100℃ and lasts for 5s before the power is automatically turned off to stop heating.

[0065] S4: Subsequently, repeat step S3 two to three times continuously.

[0066] S5: Open the high-temperature water tank inlet valve 24. The boiling water in the heating tank 11 enters the high-temperature water tank 21. When the water level in the heating tank 11 drops to the lowest water level of the heating tank, the liquid level indicating controller 15 of the heating tank automatically closes the high-temperature water tank inlet valve 24. After an interval of 2 s, it automatically opens the preheating inlet valve 45. Raw water is injected into the heating tank 11 through the cold water inlet main pipe 41 and the preheating inlet pipe 44. When the water level reaches 5 cm above the lowest water level of the heating tank, the heater 12 of the heating tank is powered on to heat the raw water in the tank, and continuous water injection is carried out until the highest water level of the heating tank is reached. The preheating inlet valve 45 is automatically closed through the liquid level indicating controller 15 of the heating tank; Observe the water temperature of the heating tank 11 through the temperature indicating controller 14 of the heating tank. After the water temperature rises to 100 °C and lasts for 5 s, the power is automatically cut off to stop heating.

[0067] S6: By supplementing boiling water from the heating tank 11 to the high-temperature water tank 21 and the medium-temperature water tank 31, when the water level in the high-temperature water tank 21 is above 1 / 2 of the total water level height and the water level in the medium-temperature water tank 31 is above 3 / 4 of the total water level height, the water dispenser enters the "preheating" mode, enabling the raw water to be heated to fully exchange heat inside the medium-temperature water tank 31 and preheating and raising the temperature to achieve an energy-saving effect. In addition, the steam pipe 13 of the heating tank and the steam pipe 25 of the high-temperature water tank lead to the preheating coil 46 inside the medium-temperature water tank. The steam is cooled to form condensed water, and the dissipated heat helps the raw water in the preheating coil 46 to increase in temperature.

[0068] S7: Open the preheating inlet valve 45 with an opening degree of 15%. The raw water slowly flows in the preheating coil 46 and enters the heating tank 11. Through the liquid level indicating controller 15 of the heating tank, the liquid level indicating controller 36 of the medium-temperature water tank, and the opening degree of the preheating inlet valve 45, the intelligent control system 5 calculates the opening time of the preheating inlet valve 45 and automatically closes the preheating inlet valve 45, enabling the preheated raw water in the preheating coil 46, which is submerged by the hot water in the medium-temperature water tank 31 and undergoes direct heat exchange conduction, to enter the heating tank 11.

[0069] S8: Subsequently, the preheating inlet pipe 44 repeats step S7 to inject water into the heating tank 11 every 45 s until the highest water level of the heating tank is reached. The preheating inlet valve 45 is automatically closed through the liquid level indicating controller 15 of the heating tank; Observe the water temperature of the heating tank 11 through the temperature indicating controller 14 of the heating tank. After the water temperature rises to 100 °C and lasts for 5 s, the power is automatically cut off to stop heating.

[0070] S9: Simultaneously open the high-temperature water tank inlet valve 24 and the medium-temperature water tank inlet valve 34 to supplement hot water to the high-temperature water tank 21 and the medium-temperature water tank 31, so as to maintain the stored water at the preset water storage volume and temperature range. At the same time, enhance the internal mixing and flow effect of the medium-temperature water tank 31 to improve the heat exchange effect of the preheating coil 46.

[0071] S10: When the water temperature in the high-temperature water tank 21 is lower than the preset lower limit temperature by 3°C and it has reached the highest water level in the high-temperature water tank, and when it is impossible to adjust the temperature by supplementing hot water from the heating water tank 11, the intelligent control system 5 performs secondary heating by turning on the high-temperature water tank heater 22. When the water temperature rises above 5°C above the preset lower limit temperature, the high-temperature water tank heater 22 stops working.

[0072] S11: When the water temperature in the medium-temperature water tank 31 drops to the preset lower limit temperature and it has reached the highest water level, the water inlet of the heating water tank 11 will be forced to switch to the "cold water" mode, and water will be injected through the cold water inlet pipe 42 until the water temperature in the medium-temperature water tank 31 rises above 8°C above the preset lower limit temperature, and then it will automatically switch to the "preheating" mode.

[0073] S12: When the water temperature in the medium-temperature water tank 31 is lower than the preset lower limit temperature by 3°C and it has reached the highest water level, and when it is impossible to adjust the temperature by supplementing hot water from the heating water tank 11, the intelligent control system 5 performs secondary heating by turning on the medium-temperature water tank heater 32. When the water temperature rises above 5°C above the preset lower limit temperature, the medium-temperature water tank heater 32 stops working.

[0074] S13: Before the starting points T1, T2, T3... of the preset peak water consumption period, the intelligent control system 5 starts heating and hot water storage actions in advance according to the feedback from the high-temperature water tank liquid level indicator controller 27 and the medium-temperature water tank liquid level indicator controller 36, repeats steps S7, S8, and S9, and the water storage volume at the starting point of the peak period is not less than 95% of the preset water storage volume, and avoid frequent start-up of small water volume replenishment and heating.

[0075] S14: After reaching the end points TA, TB, TC of the peak water consumption period, enter the "standby" mode, keep the remaining water storage volume in the high-temperature water tank 21 not less than 1 / 4 of its maximum water storage volume (default setting), and the remaining water storage volume in the medium-temperature water tank 31 not less than 1 / 6 of its maximum water storage volume (default setting), and stop the heating function. The minimum water storage volume in the "standby" mode can be changed according to the actual needs of users. Until the starting point of the next peak water consumption period, repeat steps S13 and S14.

[0076] S15: 30 minutes before reaching the preset working end time, if there is no preset peak water consumption period, close the preheating inlet valve 45 and the cold water inlet valve 43 to make the water level in the heating water tank 11 at the lowest water level.

[0077] S16: The remaining water storage in the high-temperature water tank 21 is maintained at 1 / 6 to 1 / 3 of its maximum water storage volume (default setting); when the temperature of the high-temperature water tank 21 is 3°C lower than the lower limit of the preset temperature, the high-temperature water tank heater 22 is started to raise the water temperature to the upper limit of the preset temperature. When the remaining water storage in the high-temperature water tank 21 is lower than 1 / 6 of the maximum water storage volume, the cold water inlet valve 43 is opened to inject water into the heating water tank 11, and the heating water tank heater 12 is started. When the heating water tank 11 is filled to the 1 / 3 water level, the cold water inlet valve 43 is closed. After the water temperature in the heating water tank 11 rises to 100°C and lasts for 3s, the power is automatically cut off to stop heating; the high-temperature water tank inlet valve 24 is opened to replenish water to the high-temperature water tank 21. When the water level in the heating water tank 11 drops to the lowest water level, the high-temperature water tank inlet valve 24 is closed.

[0078] S17: The remaining water storage in the medium-temperature water tank 31 is maintained at 1 / 8 to 1 / 4 of its maximum water storage volume (default setting); when the temperature of the medium-temperature water tank 31 is 3°C lower than the lower limit of the preset temperature, the medium-temperature water tank heater 32 is started to raise the water temperature to the upper limit of the preset temperature. When the remaining water storage in the medium-temperature water tank 31 is lower than 1 / 8 of the maximum water storage volume, the preheating inlet valve 45 is opened to inject water into the heating water tank, and the heating water tank heater 12 is started. When the heating water tank 11 is filled to the 1 / 3 water level, the preheating inlet valve 45 is closed. After the water temperature in the heating water tank 11 rises to 100°C and lasts for 3s, the power is automatically cut off to stop heating; the medium-temperature water tank inlet valve 34 is opened to replenish water to the medium-temperature water tank 31. When the water level in the heating water tank 11 drops to the lowest water level, the medium-temperature water tank inlet valve 34 is closed.

[0079] S18: 5 minutes before reaching the preset working end time, the heating water tank heater 12, the high-temperature water tank heater 22, and the medium-temperature water tank heater 32 no longer perform the heating task; if the heating task is being executed, then after completing the current heating task, the heating task will no longer be executed;

[0080] S19: After reaching the preset working end time, the water dispenser enters the "long standby" mode. Users can still draw water through the high-temperature water intake valve 28 and the medium-temperature water intake valve 37, and the water levels and water temperatures (remaining water storage) of each water tank are displayed to prompt users to make full use of the heated boiling water in the tank.

[0081] S20: During the period when there is no one in the surrounding environment of the water heater at 22:30 (default setting), it automatically enters the "self-cleaning" mode, automatically starts the water tank disinfection program, and realizes the functions of automatic heating disinfection and sewage discharge. After the water temperature in the heating water tank 11 rises to 100 °C and lasts for 5 s, the power is automatically cut off to stop heating. After 2 s, the sewage discharge valve 16 of the heating water tank is opened to discharge the scale residue in the dead corner area. After the heating water tank 11 is emptied, according to the water level feedback of the heating water tank level indicating controller 15, the sewage discharge valve 16 of the heating water tank is automatically closed 5 s after the water level drops to the bottom of the heating water tank; after the water temperature in the high-temperature water tank 21 rises to 100 °C and lasts for 10 s, the power is automatically cut off to stop heating. After 2 s, the sewage discharge valve 29 of the high-temperature water tank is opened to discharge the scale residue in the dead corner area. After the high-temperature water tank 21 is emptied, according to the water level feedback of the high-level water tank level indicating controller 27, the sewage discharge valve 29 of the high-temperature water tank is automatically closed 5 s after the water level drops to the bottom of the high-temperature water tank; after the water temperature in the medium-temperature water tank 31 rises to 100 °C and lasts for 15 s, the power is automatically cut off to stop heating. After 2 s, the sewage discharge valve 37 of the medium-temperature water tank is opened to discharge the scale residue in the dead corner area. After the medium-temperature water tank 31 is emptied, according to the water level feedback of the medium-temperature water tank level indicating controller 36, the sewage discharge valve 37 of the medium-temperature water tank is automatically closed 5 s after the water level drops to the bottom of the medium-temperature water tank 31.

[0082] S21: When the "self-cleaning" mode ends, the water heater automatically shuts down.

[0083] S22: When the next working cycle arrives, the water heater automatically turns on and executes sequentially from step S2 until the end of the working cycle, and is executed cyclically according to the working cycle.

[0084] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention and are not intended to limit them. Although the present invention has been described in detail with reference to the preferred embodiments, those of ordinary skill in the art should understand that the technical solutions of the present invention can be modified or equivalently replaced without departing from the spirit and scope of the technical solutions of the present invention.

Claims

1. A temperature control system, characterized in that: include: Heating module, high temperature module, medium temperature module, water injection module and intelligent control system; The water injection module is used to inject water into the heating module; the heating module is used to heat the injected water; the water heated by the heating module can flow to the high temperature module and the medium temperature module; the high temperature module and the medium temperature module can reheat the water flowing in; The steam generated by the heating module and the high temperature module can be transferred to the medium temperature module to maintain the water storage temperature of the medium temperature module; the water injected into the heating module by the water injection module is cold water directly connected to the outside, or water preheated by the medium temperature module; The high temperature module is used to provide hot water, and the medium temperature module is used to provide warm water; the intelligent control system is used to control the heating module, the high temperature module, the medium temperature module and the water injection module; The heating module is arranged on the upper side of the high temperature module, and the medium temperature module is arranged on the right side of the heating module; the heating water tank heater is the main heater, and the high temperature water tank heater and the medium temperature water tank heater are auxiliary heaters; the high temperature water tank inlet valve and the medium temperature water tank inlet valve can be automatically opened and closed to realize the heating of the boiling water into the high temperature water tank and the medium temperature water tank; The water injection module includes a cold water inlet main pipe, a cold water inlet pipe, a cold water inlet valve, a preheating inlet pipe, and a preheating inlet valve; the cold water inlet main pipe is connected to the cold water inlet pipe via the cold water inlet valve, and the cold water inlet pipe is arranged on the top of the heating water tank; the cold water inlet main pipe is connected to the preheating inlet pipe via the preheating inlet valve, the main part of the preheating inlet pipe is arranged inside the medium temperature water tank, and the water outlet part of the preheating inlet pipe is arranged on the top of the heating water tank; The steam pipe of the heating water tank is connected to the interior of the heating water tank and the medium temperature water tank; the steam pipe of the high temperature water tank is connected to the interior of the high temperature water tank and the medium temperature water tank; the heating water tank can be filled with water through the cold water inlet pipe and the preheating water inlet pipe; the steam generated by the heating water tank and the high temperature water tank is concentrated in the upper space of the medium temperature water tank; The main part of the preheating water inlet pipe is the preheating coil, which includes a vertical pipe and a spiral coil that are connected. The vertical pipe is arranged in the middle of the inner side of the spiral coil, the water inlet end of the vertical pipe is connected with the preheating water inlet valve, and the water outlet end of the spiral coil is connected with the water outlet part of the preheating water inlet pipe; a T-shaped pipe is arranged at the outlet of the heating water tank steam pipe and the high-temperature water tank steam pipe, a first valve is arranged in the middle of the T-shaped pipe, and a second valve is arranged at the outlet of the T-shaped pipe; the second valve is connected with an elastic pipe, and the elastic pipe is connected with a float exhaust module; the float exhaust module is slidably sleeved on the outer side of the vertical pipe, the float exhaust module is an annular hollow float, and an exhaust hole is arranged at the bottom; the float exhaust module floats in the water and moves with the movement of the water level.

2. The temperature control system according to claim 1, characterized in that: in, The heating module includes a heating water tank temperature indicating controller and a heating water tank liquid level indicating controller; the high temperature module includes a high temperature water tank temperature indicating controller and a high temperature water tank liquid level indicating controller; the medium temperature module includes a medium temperature water tank temperature indicating controller and a medium temperature water tank liquid level indicating controller.

3. The temperature control system according to claim 2, characterized in that: in, The heating module includes a heating water tank, a heating water tank heater, and a heating water tank steam pipe; the high-temperature module includes a high-temperature water tank, a high-temperature water tank heater, a high-temperature water tank water inlet pipe, a high-temperature water tank water inlet valve, and a high-temperature water tank steam pipe; the medium-temperature module includes a medium-temperature water tank, a medium-temperature water tank heater, a medium-temperature water tank water inlet pipe, and a medium-temperature water tank water inlet valve; the air inlet of the heating water tank steam pipe is located on the upper side of the heating water tank, and the air outlet of the heating water tank steam pipe is located on the upper side of the medium-temperature water tank; the air inlet of the high-temperature water tank steam pipe is located on the upper side of the high-temperature water tank, and the air outlet of the high-temperature water tank steam pipe is located on the upper side of the medium-temperature water tank.

4. The temperature control system according to claim 3, characterized in that: in, The high-temperature water tank inlet pipe connects the heating water tank and the interior of the high-temperature water tank, and a high-temperature water tank inlet valve is arranged in the middle of the high-temperature water tank inlet pipe; the medium-temperature water tank inlet pipe connects the heating water tank and the interior of the medium-temperature water tank, and a medium-temperature water tank inlet valve is arranged in the middle of the medium-temperature water tank inlet pipe; the high-temperature water tank is filled with water through the high-temperature water tank inlet pipe; the medium-temperature water tank is filled with water through the medium-temperature water tank inlet pipe.

5. The temperature control system according to claim 4, characterized in that: in, The high temperature module includes a high temperature water intake valve, which is arranged at the bottom of the high temperature water tank; the medium temperature module includes a medium temperature water intake valve, which is arranged at the bottom of the medium temperature water tank.

6. The temperature control system according to claim 5, characterized in that: in, The medium temperature module comprises a medium temperature water tank safety valve, and the medium temperature water tank safety valve is arranged on the upper side of the medium temperature water tank.

7. The temperature control system according to claim 6, characterized in that: in, The heating module includes a heating water tank drain valve, the high temperature module includes a high temperature water tank drain valve, and the medium temperature module includes a medium temperature water tank drain valve.

8. An energy-saving water boiler comprising the temperature control and regulation system of claim 7, characterized in that: include: Hot water intake module, warm water intake module and display control module; the hot water intake module is connected to the high temperature water intake valve, the warm water intake module is connected to the medium temperature water intake valve, and the display control module is used for setting and monitoring the temperature control system parameters.

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