Large-flow instant water heater using phase change material to store energy

Abstract

The utility model discloses a kind of high-flow instant water purifiers of energy storage using phase change material, including water purification module, heating module, water mixing module and control module;Water purification module includes equipment water inlet, inlet water solenoid valve, first pump body and filter assembly;The inlet of heating module is connected with the outlet of water purification module to be used for heating pumped normal temperature drinking water, it includes sequentially connected first solenoid valve, energy storage tank, second pump body, heating body and water faucet, energy storage tank includes tank body, phase change material and heat exchange pipe;The inlet of water mixing module is communicated with the outlet of water purification module and its outlet is connected on the pipeline between heating body and water faucet, it is used for mixing normal temperature drinking water filtered after water purification module with water heated after heating module, and water mixing module includes second solenoid valve.The utility model uses the phase change material of energy storage tank to continuously and stably heat water passing, and through control opening different load, different temperature water of high-flow output can be realized.

Description

Technical Field

[0001] This utility model relates to the field of drinking water equipment technology, and in particular to a high-flow instant hot water purifier that uses phase change material for energy storage. Background Technology

[0002] With the improvement of living standards, the demand for high-flow hot water is increasing. Traditional under-sink instant water purifiers are limited by household 10A sockets and power cords, and the instant heating element power is only about 2100W, resulting in a hot water flow rate of only 350ml-400ml / min, which seriously affects the user experience. To address the above problems, existing under-sink instant water purifiers mostly use heat exchange technology in a hot water tank or preheating tank to achieve a high flow rate, but this technology has obvious drawbacks: 1) Heat exchange in the hot water tank is prone to repeated heating, resulting in high energy consumption; 2) During heat exchange in the preheating tank, the water temperature fluctuates greatly, the hot water flow rate is unstable, and the temperature control accuracy is low. Utility Model Content

[0003] The present invention aims to overcome the defects in the prior art and provide a high-flow instant hot water purifier that uses phase change material for energy storage. By adding an energy storage tank and utilizing the characteristics of phase change material, it can continuously and stably heat the water flowing through the heat exchange tube. Different loads can be turned on according to the relationship between the outlet water temperature and the phase change point temperature, thereby achieving high-flow water output at different temperatures.

[0004] To achieve the above objectives, this utility model provides a high-flow-rate instant hot water purifier that uses phase change material for energy storage, including a water purification module, a heating module, a mixing module, and a control module. The water purification module is used to filter the incoming water to obtain room temperature drinking water. It includes a device inlet, an inlet solenoid valve, a first pump body, and a filter assembly. The first pump body is used to pump the purified drinking water to the heating module and / or the mixing module. The inlet of the heating module is connected to the outlet of the water purification module to heat the pumped room temperature drinking water. It includes a first solenoid valve, an energy storage tank, a second pump body, a heating element and a water outlet connected in sequence. The energy storage tank includes a tank body, a phase change material filled in the tube body, and a heat exchange tube immersed in the phase change material. The inlet of the mixing module is connected to the outlet of the water purification module, and its outlet is connected to the pipeline between the heating element and the water faucet. It is used to mix the room temperature drinking water filtered by the water purification module with the water heated by the heating module to obtain warm water at different temperatures. The mixing module includes a second solenoid valve.

[0005] The filter assembly is further configured such that it includes a pre-filter, a reverse osmosis membrane filter, and a post-filter. The pre-filter is arranged on the pipeline between the equipment inlet and the inlet solenoid valve, and the reverse osmosis membrane filter and the post-filter are arranged sequentially on the pipeline behind the first pump body.

[0006] The system is further configured to include a reflux module, wherein the inlet of the reflux module is connected to the pipeline between the reverse osmosis membrane filter element and the post-filter element, and its outlet is connected to the pipeline between the inlet solenoid valve and the first pump body, and the reflux module includes a reflux solenoid valve.

[0007] Further configuration includes: a first to a third temperature probe, wherein the first temperature probe is disposed on the outlet section of the water purification module, the second temperature probe is disposed on the outlet section of the heating element, and the third temperature probe is disposed on the inlet section of the water faucet.

[0008] The energy storage tank is further configured to include a heating plate disposed at the bottom of the tank body for heating the phase change material, and a fourth temperature probe is disposed on the energy storage tank.

[0009] The heat exchange tube is further configured as a spirally arranged coil structure.

[0010] Compared with the prior art, this utility model has a simple and reasonable structure. By adding an energy storage tank and utilizing the characteristics of phase change materials, it can continuously and stably heat the water flowing through the heat exchange tube. Different loads can be turned on according to the relationship between the outlet water temperature and the phase change point temperature, thereby enabling the output of water at different temperatures in large flow rates. Attached Figure Description

[0011] Figure 1 This is a schematic diagram of the water circuit connection of a high-flow instant hot water purifier using phase change material energy storage according to this utility model.

[0012] The following reference numerals are marked on the accompanying drawings: 10. Water purification module; 11. Equipment inlet; 12. Pre-filter; 13. Inlet solenoid valve; 14. First pump body; 15. Reverse osmosis membrane filter; 16. Post-filter; 17. First temperature probe; 20. Heating module; 21. First solenoid valve; 22. Energy storage tank; 221. Heating plate; 222. Fourth temperature probe; 23. Second pump body; 24. Heating element; 25. Second temperature probe; 26. Third temperature probe; 27. Water outlet; 30. Mixing module; 31. Second solenoid valve; 40. Control module; 50. Reflux module; 51. Reflux solenoid valve. Detailed Implementation

[0013] The following describes a specific embodiment of the present invention in detail with reference to the accompanying drawings. However, it should be understood that the scope of protection of the present invention is not limited to the specific embodiment.

[0014] This utility model discloses a high-flow instant hot water purifier that utilizes phase change material energy storage, such as... Figure 1As shown, the system includes a water purification module 10, a heating module 20, a water mixing module 30, and a control module 40. The water purification module 10 filters the incoming water to obtain room temperature drinking water that meets drinking standards. The inlet of the heating module 20 is connected to the outlet of the water purification module 10 to heat the room temperature drinking water. The inlet of the water mixing module 30 is connected to the outlet of the water purification module 10, and its outlet is connected to the outlet section of the heating module 20 to mix the room temperature drinking water with the heated drinking water to obtain warm water at different temperatures. The control module 40 is connected to the water purification module 10, the heating module 20, and the water mixing module 30 to control the orderly operation of each module.

[0015] In this embodiment, the water purification module 10 includes a device inlet 11, an inlet solenoid valve 13, a first pump body 14, and a filter assembly. The first pump body 14 is preferably a booster pump used to pump the incoming water through the filter assembly into the heating module 20 and / or the mixing module 30. Specifically, the filter assembly includes a pre-filter 12, a reverse osmosis membrane filter 15, and a post-filter 16. The pre-filter 12 is disposed on the pipeline between the device inlet 11 and the inlet solenoid valve 13, and the reverse osmosis membrane filter 15 and the post-filter 16 are arranged sequentially on the pipeline behind the first pump body 14. Preferably, a first temperature probe 17 is disposed on the pipeline behind the post-filter 16. The first temperature probe 17 is used to detect the real-time temperature of the room-temperature drinking water filtered and generated by the water purification module 10.

[0016] In this embodiment, the heating module 20 includes a first solenoid valve 21, an energy storage tank 22, a second pump body 23, a heating element 24, and a water outlet faucet 27 connected in sequence. The energy storage tank 22 includes a tank body, a phase change material filled in the tank body, a heat exchange tube immersed in the phase change material, and a heating plate 221 disposed at the bottom of the tank body. The heating plate 221 is used to heat the phase change material in the tank body to cause it to undergo a phase change for energy storage. A fourth temperature probe 222 is disposed on the energy storage tank 22 for detecting the temperature of the phase change material. The control module 40 controls the working state of the heating plate 221 by using the detected temperature fed back by the fourth temperature probe 222. The second pump body 23 is preferably a diaphragm pump for controlling the pumping flow rate of the water in the heating module 20. Preferably, the heat exchange tube is a spirally arranged coil structure, so that the heat exchange effect of the energy storage tank 22 can be effectively improved by extending the length of the heat exchange tube. Preferably, a second temperature probe 25 is disposed on the outlet section of the heating element 24, which is used to detect the real-time temperature of the water flowing through the heating element 24.

[0017] In this embodiment, the mixing module 30 includes a second solenoid valve 31. The inlet of the second solenoid valve 31 is connected to the pipeline between the first temperature probe 17 and the first solenoid valve 21, and the outlet of the second solenoid valve 31 is connected to the pipeline between the heating element 24 and the water tap 27. Thus, by controlling the pumping flow of the first pump body 14 and the second pump body 23 through the control module 40, the mixing ratio of room temperature water and heated water can be controlled to obtain warm water of different temperatures. Preferably, a third temperature probe 26 is provided on the pipeline between the outlet end of the mixing module 30 and the water tap 27. The third temperature probe 26 is used to detect the real-time temperature of the water coming out of the water tap 27.

[0018] In this embodiment, the water purifier also includes a reflux module 50, which includes a reflux solenoid valve 51. The inlet of the reflux solenoid valve 51 is connected to the pipeline between the reverse osmosis membrane filter element 15 and the post-filter element 16, and its outlet is connected to the pipeline between the water inlet solenoid valve 13 and the first pump body 14.

[0019] Specifically: When the water purifier is not dispensing water, the heating plate heats the phase change material until the phase change point temperature is reached and then stops; when the water purifier is dispensing water: 1) When room temperature water is dispensed, the control module 40 controls the inlet solenoid valve 13, the first pump body 14, and the second solenoid valve 31 to open. At this time, the water path is: equipment inlet 11 → pre-filter 12 → inlet solenoid valve 13 → first pump body 14 → reverse osmosis membrane filter 15 → post-filter 16 → second solenoid valve 31 → faucet 27; 2) When When the outlet water temperature is lower than the phase change point temperature, the control module 40 controls the inlet solenoid valve 13, the first pump body 14, the first solenoid valve 21, the second pump body 23, the second solenoid valve 31, and the return solenoid valve 51 to open and adjust the water flow rate by adjusting the PWM of the first pump body 14 and the second pump body 23. At this time, the water path is: equipment inlet 11 → pre-filter 12 → inlet solenoid valve 13 → first pump body 14 → reverse osmosis membrane filter 15 → post-filter 16, part of the water → second solenoid valve 31 → outlet faucet 27, part of the water → first solenoid valve 21 → energy storage tank 22 (heat exchange tube) → second pump body 23 → heating element 24 → outlet faucet 27. The two parts of water are mixed in proportion before outlet faucet 27 to obtain warm water of different temperatures; 3) When hot water is output (outlet water temperature is higher than the phase change point temperature), the control module 40 controls the inlet solenoid valve 13, the first pump body 14, the second solenoid valve 31, the second pump body 23, the second solenoid valve 31, the second pump body 23, the first pump body 14, the second solenoid valve 21, the second pump body 23, the second solenoid valve 31, the second pump body 23, the second solenoid valve 51, the second pump body 23, the second solenoid valve 24 ...51, the second solenoid valve 24, the second solenoid valve 51, the second solenoid valve 24, the second solenoid valve When the heating element 24 and the return solenoid valve 51 are opened, the water path is as follows: equipment inlet 11 → pre-filter 12 → inlet solenoid valve 13 → first pump body 14 → reverse osmosis membrane filter 15 → post-filter 16 → first solenoid valve 21 → energy storage tank 22 (heat exchange tube) → second pump body 23 → heating element 24 → water outlet faucet 27. In this way, the water is first preheated by the energy storage tank 22 and then precisely heated by the heating element 24 before being output, thus achieving a stable and large flow of hot water output.

[0020] Compared with the prior art, this utility model has a simple and reasonable structure. By adding an energy storage tank and utilizing the characteristics of phase change materials, it can continuously and stably heat the water flowing through the heat exchange tube. Different loads can be turned on according to the relationship between the outlet water temperature and the phase change point temperature, thereby enabling the output of water at different temperatures in large flow rates.

[0021] The above-disclosed embodiments are merely examples of the present utility model. However, the present utility model is not limited thereto, and any variations that can be conceived by those skilled in the art should fall within the protection scope of the present utility model.

Claims

1. A high-flow-rate instantaneous water purifier using phase change material energy storage, characterized in that, It includes a water purification module, a heating module, a mixing module, and a control module; The water purification module is used to filter the incoming water to obtain room temperature drinking water. It includes a device inlet, an inlet solenoid valve, a first pump body, and a filter assembly. The first pump body is used to pump the purified drinking water to the heating module and / or the mixing module. The inlet of the heating module is connected to the outlet of the water purification module to heat the pumped room temperature drinking water. It includes a first solenoid valve, an energy storage tank, a second pump body, a heating element and a water outlet connected in sequence. The energy storage tank includes a tank body, a phase change material filled in the tube body, and a heat exchange tube immersed in the phase change material. The inlet of the mixing module is connected to the outlet of the water purification module, and its outlet is connected to the pipeline between the heating element and the water faucet. It is used to mix the room temperature drinking water filtered by the water purification module with the water heated by the heating module to obtain warm water at different temperatures. The mixing module includes a second solenoid valve.

2. A high-flow-rate instant hot water purifier using phase change material energy storage as described in claim 1, characterized in that, The filtration assembly includes a pre-filter, a reverse osmosis membrane filter, and a post-filter. The pre-filter is arranged on the pipeline between the equipment inlet and the inlet solenoid valve, and the reverse osmosis membrane filter and the post-filter are arranged sequentially on the pipeline behind the first pump body.

3. A high-flow-rate instant hot water purifier using phase change material energy storage as described in claim 2, characterized in that, It also includes a reflux module, the inlet of which is connected to the pipeline between the reverse osmosis membrane filter element and the post-filter element, and its outlet is connected to the pipeline between the inlet solenoid valve and the first pump body. The reflux module includes a reflux solenoid valve.

4. A high-flow-rate instant hot water purifier using phase change material energy storage as described in claim 2, characterized in that, It also includes a first to a third temperature probe, the first temperature probe being installed on the outlet section of the water purification module, the second temperature probe being installed on the outlet section of the heating element, and the third temperature probe being installed on the inlet section of the water faucet.

5. A high-flow-rate instant hot water purifier using phase change material energy storage as described in claim 1, characterized in that, The energy storage tank also includes a heating plate disposed at the bottom of the tank for heating the phase change material, and a fourth temperature probe is disposed on the energy storage tank.

6. A high-flow-rate instant hot water purifier using phase change material energy storage as described in claim 1, characterized in that, The heat exchange tubes are spirally arranged coils.

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