Water purifier capable of adjusting flow increment

Abstract

A water purifier capable of adjusting flow increment comprises a water inlet, a thermometer, an RO (reverse osmosis) membrane filter element and an electric control board, and is characterized in that a phase change energy storage module is arranged between the water inlet and the RO membrane filter element and comprises a shell, a heat exchanger, a phase change material with a phase change point of 20-50 DEG C and a module heating body, a circulating flow channel is arranged in the heat exchanger, and the circulating flow channel is communicated with the RO membrane filter element. The space between the heat exchanger and the shell is filled with the phase-change material, a module heating body is arranged at the position of the phase-change material in the shell, a water inlet thermometer is arranged at the position of the water inlet, temperature is collected and fed back to the electric control board, and the electric control board is in signal connection with the module heating body. The water purifier capable of adjusting the flow increment is equipment for preheating a water source by adopting the phase change energy storage module after the temperature of the water source is lower than a preset temperature, the phase change after energy storage can spontaneously conduct heat under the condition of temperature difference, and the heating process is stable, very controllable and reliable; therefore, the stable operation of the subsequent membrane filter is guaranteed.

Description

[Technical field]

[0002] The utility model relates to the technical field of a water purifier, in particular to a technology for providing a flow increment for a water purifier through a phase change material. [Background technology]

[0004] With the improvement of living standards, people have higher requirements for the standards of drinking water, and the household ownership rate of water purifiers has been rising steadily; especially the unique pure water technology of reverse osmosis water purifiers has gradually gained more and more recognition and favor among people.

[0005] However, the flux of the reverse osmosis membrane, the core component of the reverse osmosis water purifier, will be affected by temperature. The reverse osmosis membrane uses the principle that water source osmosis occurs on both sides of the membrane with different ion concentrations, and reverse osmosis. Osmosis has certain temperature requirements, and the water source temperature must not be lower than the lowest temperature at which the osmosis phenomenon can occur. In the low temperature in winter, the osmosis process will be much slower, causing the flow of the reverse osmosis device to even decay to half or more, which has a significant impact on the user experience. If the flux of the water purifier is simply increased, the cost performance is very low.

[0006] There are public technologies such as CN201921678947.2, a reverse osmosis water purification system with heating function and its water purifier, which discloses that a heating module is arranged on the circulation channel. When the actual water inlet temperature of the membrane filtration unit is lower than the preset water inlet temperature, the heating module starts to run until the actual water inlet temperature is higher than the preset water inlet temperature. The problems with this technology are: 1. The circulation channel is used for heating, and the water in the circulation channel comes from the wastewater discharged from the membrane filtration unit, that is, the filtered wastewater is circulated to the front end for use, which does some useless work and causes energy waste of the system; 2. The heating module is used to heat the water, and secondary temperature measurement is required until the preset temperature is reached and the heating is stopped. This control method is a closed-loop control, which will have the problem of frequent start and stop. The frequent start and stop of the heating module ultimately leads to a large fluctuation in water temperature, and the inlet water temperature cannot be well maintained at a stable level, which will also have a greater impact on the water purification function of the reverse osmosis equipment. [Summary of the invention]

[0008] In view of the problems existing in the existing water purifiers and the shortcomings of the existing technical solutions, the utility model proposes a solution for a water purifier with flow increment regulation using phase change material as a preheating module, wherein a phase change material with a phase change temperature point of 20°C~50°C is arranged at the water inlet end of the water purifier, and the phase change material heat storage module is started to preheat the incoming water when the room temperature is lower than 20°C, thereby providing a water source with suitable temperature for the reverse osmosis water inlet, without affecting its flow rate and improving the user experience.

[0009] The utility model relates to a water purifier with flow increment regulation, comprising a water inlet, a thermometer, an RO membrane filter element and an electric control board, and is characterized in that a phase change energy storage module is provided between the water inlet and the RO membrane filter element, wherein the phase change energy storage module comprises a shell, a heat exchanger, a phase change material with a phase change point of 20°C to 50°C and a module heater, wherein a flow channel is provided in the heat exchanger, the phase change material is filled between the heat exchanger and the shell, a module heater is provided at the phase change material in the shell, a water inlet thermometer is provided at the water inlet, the collected temperature is fed back to the electric control board, and the signal of the electric control board is connected to the module heater.

[0010] The water purifier with flow increment regulation also includes a flow meter, which is arranged at the water outlet of the RO membrane filter element.

[0011] The module heating body is a device that converts electrical energy into thermal energy of the phase change energy storage module.

[0012] A water inlet and a water outlet are provided on the shell of the phase change energy storage module, and the water inlet is connected to the water outlet through a flow channel passing through the heat exchanger.

[0013] When the inlet water temperature measured by the water inlet thermometer is lower than a preset temperature, the electric control board sends a signal to start the module heating body.

[0014] A module thermometer is arranged in the shell of the phase-change energy storage module, and the module thermometer detects the temperature of the phase-change energy storage module.

[0015] The module thermometer and the water inlet thermometer are infrared thermometers, NTC thermometers and thermocouple thermometers.

[0016] The water purifier with flow increment adjustment involved in the utility model is a device that uses a phase change energy storage module to preheat the water source after the water source temperature is lower than the preset temperature. The phase change after energy storage will spontaneously conduct heat under the temperature difference. The heating process is stable, controllable and reliable, thereby providing a guarantee for the stable operation of the subsequent membrane filter.

Brief Description of the Drawings

[0018] Figure 1 It is a schematic diagram of a water purifier with flow rate increment adjustment involved in the utility model;

[0019] Among them: 10, water inlet; 20, thermometer; 30, module heating body; 40, RO membrane filter element; 50, phase change energy storage module; 51, shell; 52, heat exchanger; 53, module thermometer; 60, flow meter. [Specific implementation method]

[0021] The present invention will be described in detail below in conjunction with the accompanying drawings and embodiments, examples of the embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals throughout represent the same or similar elements or elements having the same or similar functions. The embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain the present invention, and cannot be understood as limiting the present invention.

[0022] In the description of the present invention, it should be understood that the terms "center", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", etc., indicating directions or positional relationships, are based on the directions or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific direction, be constructed and operated in a specific direction, and therefore should not be understood as a limitation on the present invention.

[0023] Please refer to the attached Figure 1 , which shows a water purifier with flow increment regulation, which can preheat the water inlet for the water purifier under low temperature conditions to avoid affecting the flux of the RO membrane filter element under low temperature conditions. The water purifier with flow increment regulation includes a water inlet 10, a thermometer 20, an RO membrane filter element 40 and an electric control board, and is characterized in that a phase change energy storage module 50 is provided between the water inlet 10 and the RO membrane filter element 40, wherein the phase change energy storage module 50 includes a shell 51, a heat exchanger 52, a phase change material (not shown) with a phase change point of 20°C~50°C and a module heating body 30, a flow channel is provided in the heat exchanger 52, the phase change material is filled between the heat exchanger 52 and the shell 51, a module heating body 30 is provided at the phase change material in the shell 51, and a water inlet thermometer 20 is provided at the water inlet 10, and the collected temperature is fed back to the electric control board, and the signal of the electric control board is connected to the module heating body 30.

[0024] The water purifier with flow increment regulation further includes a flow meter 60 , which is disposed at the water outlet of the RO membrane filter element 40 .

[0025] The module heating body 30 is a device for converting electrical energy into thermal energy of the phase change energy storage module.

[0026] A water inlet and a water outlet are provided on the shell 51 of the phase change energy storage module 50 , and the water inlet is connected to the water outlet through a flow channel passing through the heat exchanger.

[0027] The water inlet thermometer 20 collects the water inlet temperature and when the water inlet temperature is lower than the preset temperature, the electric control board sends a signal to start the module heating body.

[0028] A module thermometer 53 is disposed in the housing 51 of the phase-change energy storage module 50 , and the module thermometer 53 detects the temperature of the phase-change energy storage module 50 .

[0029] The module thermometer 53 and the water inlet thermometer 20 are infrared thermometers, NTC thermometers and thermocouple thermometers.

[0030] The phase change energy storage module includes a shell, a heat exchanger, a phase change material, and a heating body; the phase change material preferably has a melting point of 20-50°C. When the machine is started, the thermometer 20 detects the inlet water temperature. If the inlet water temperature is higher than 20°C, the phase change energy storage module does not work, that is, the module heating body does not generate heat and does not store energy in the phase change material; when the thermometer detects that the inlet water temperature is lower than 20°C, the phase change energy storage module starts to work, the electric control board controls the module heating body 30 to generate heat, and the heating body heats the phase change material to 20-50°C, and then the water below 20°C passes through the heat exchanger 52 in the phase change energy storage module 50, and the phase change material generates heat to preheat the water to above 20°C, so as to preheat the inlet water of the RO membrane and realize the flow increment in low temperature in winter.

[0031] After passing through the phase change energy storage module 50, it is equivalent to preheating the incoming water, and the temperature can be raised to about 25°C or 30°C, so that it can be adapted to the subsequent water purifier or water softener for use. Because the water is not heated directly, there will be no problem of frequent starting and stopping of the heating device due to the water temperature being higher / lower than the set value, and there will be no systematic delay effect due to the heating link. The solution provided by the present technical solution is to start the module heater in the phase change energy storage module after the water source temperature is lower than the preset temperature to heat the phase change material in the phase change energy storage module. After the phase change material stores heat, it will spontaneously conduct heat under the temperature difference until it reaches isothermal, so there will be no mechanism for sending a signal after the system detects it. The heating process of the phase change material is stable, controllable and reliable, thereby providing a guarantee for the stable operation of the subsequent membrane filtration machine.

[0032] The above is only a preferred embodiment of the utility model, and does not limit the utility model in any form. Although the utility model is disclosed as a preferred embodiment as above, it is not used to limit the utility model. Any technician familiar with this profession can make some changes or modifications to equivalent embodiments of equivalent changes by using the technical content disclosed above without departing from the scope of the technical solution of the utility model. However, any simple modification, equivalent change and modification made to the above embodiments according to the technology of the utility model, which does not depart from the content of the technical solution of the utility model, belongs to the scope of the technical solution of the utility model.

Claims

1. A water purifier with flow increment adjustment, comprising a water inlet, a thermometer, an RO membrane filter element and an electric control board, It is characterized in that A phase change energy storage module is provided between the water inlet and the RO membrane filter element, wherein the phase change energy storage module comprises a shell, a heat exchanger, a phase change material with a phase change point of 20°C to 50°C and a module heater. There is a flow channel in the heat exchanger, the phase change material is filled between the heat exchanger and the shell, a module heater is provided at the phase change material in the shell, and a water inlet thermometer is provided at the water inlet to collect temperature and feed it back to the electric control board, and the signal of the electric control board is connected to the module heater.

2. A water purifier with flow rate increment adjustment according to claim 1, It is characterized in that The water purifier with flow increment regulation also includes a flow meter, which is arranged at the water outlet of the RO membrane filter element.

3. The water purifier with flow rate increment adjustment according to claim 1, It is characterized in that The module heating body is a device that converts electrical energy into thermal energy of the phase change energy storage module.

4. A water purifier with flow rate increment adjustment according to claim 3, It is characterized in that A water inlet and a water outlet are provided on the shell of the phase change energy storage module, and the water inlet is connected to the water outlet through a flow channel passing through the heat exchanger.

5. A water purifier with flow rate increment adjustment according to claim 4, It is characterized in that When the inlet water temperature measured by the water inlet thermometer is lower than a preset temperature, the electric control board sends a signal to start the module heating body.

6. A water purifier with flow rate increment adjustment according to claim 5, It is characterized in that A module thermometer is arranged in the shell of the phase-change energy storage module, and the module thermometer detects the temperature of the phase-change energy storage module.

7. A water purifier with flow rate increment adjustment according to claim 6, It is characterized in that The module thermometer and the water inlet thermometer are infrared thermometers, NTC thermometers and thermocouple thermometers.

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