Heating system

Abstract

The utility model discloses a heating system which comprises a reverse osmosis filtering system, a hot tank heating system and a water outlet, the reverse osmosis filtration system filters raw water into pure water, the reverse osmosis filtration system comprises a booster pump, a pure water outlet of the reverse osmosis filtration system is in fluid communication with the water outlet, and the booster pump adjusts the water outlet flow of the pure water outlet; the hot tank heating system is used for heating pure water from the reverse osmosis filtering system; the hot tank heating system comprises a hot tank and an impeller pump, wherein the impeller pump is used for adjusting the water outlet flow of the hot tank; the water outlet is used for receiving water with preset flow from the pure water outlet and / or the hot tank heating system. According to the invention, hot water with accurate temperature and large flow can be quickly output.

Description

Technical Field

[0001] The utility model relates to the technical field of heating, in particular to a heating system. Background Art

[0002] Currently, heating equipment with water purification functions primarily utilizes thick-film heater instant heating technology and hot tank heater heat storage technology to heat purified water. While thick-film heater instant heating technology enables rapid switching between different water temperatures, it suffers from a low water flow rate. Hot tank heater heat storage technology, on the other hand, can provide a high flow rate of boiling or boiling water, but requires a waiting period when the outlet water temperature needs to be changed. In other words, existing technologies have yet to provide an effective solution for the need to provide high flow rates of hot water at varying temperatures. Utility Model Content

[0003] The main purpose of the utility model is to provide a heating system to solve the problem that the heating equipment in the prior art cannot quickly provide drinking water with different temperatures and large flow rates.

[0004] According to an embodiment of the present invention, a heating system is proposed, which includes: a reverse osmosis filtration system, a hot tank heating system and a water outlet; the reverse osmosis filtration system filters raw water into pure water, the reverse osmosis filtration system includes a booster pump, the pure water outlet of the reverse osmosis filtration system is fluidly connected to the water outlet, and the booster pump adjusts the water outlet flow rate of the pure water outlet; the hot tank heating system heats the pure water from the reverse osmosis filtration system; the hot tank heating system includes: a hot tank and an impeller pump, the impeller pump adjusts the water outlet flow rate of the hot tank; the water outlet, the water outlet receives water with a predetermined flow rate from the pure water outlet and / or the hot tank heating system.

[0005] Wherein, the reverse osmosis filtration system further includes a reverse osmosis filtration unit, and the booster pump is arranged upstream of the reverse osmosis filtration unit.

[0006] Wherein, the reverse osmosis filtration system further includes: a pre-filtration unit and a post-filtration unit, the pre-filtration unit is arranged upstream of the booster pump, and the post-filtration unit is arranged downstream of the reverse osmosis filtration unit.

[0007] Wherein, the reverse osmosis filtration system further includes: a pre-membrane reflux water channel, which guides the pure water flowing out of the water outlet of the post-filtration unit to the water inlet of the reverse osmosis filtration unit.

[0008] Wherein, the filtration system further includes: a wastewater waterway, which is connected to the wastewater outlet of the reverse osmosis filtration unit.

[0009] Wherein, it further includes: a normal temperature water circuit, wherein the normal temperature water circuit is arranged between the reverse osmosis filtration system and the water outlet, and the normal temperature water circuit includes a first solenoid valve.

[0010] Wherein, the impeller pump is arranged at the water outlet of the hot tank.

[0011] Wherein, a second solenoid valve is also provided at the water inlet of the hot tank heating system.

[0012] The booster pump is a booster pump with an adjustable duty cycle, and the duty cycle of the booster pump is between 30% and 100%.

[0013] Wherein, the filtering system further includes: at least one TDS sensor.

[0014] According to the technical solution of the present invention, by respectively setting up a normal temperature water circuit and a hot tank heating system connected to the filtration system, the outlet flow rate of normal temperature water is controlled by a booster pump, and the outlet flow rate of boiling water is controlled by an impeller pump, so that normal temperature water and boiling water can be mixed in a predetermined proportion to achieve precise control of the water temperature, thereby quickly outputting hot water with precise temperature and large flow rate. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] The drawings described herein are used to provide a further understanding of the present invention and constitute a part of this application. The exemplary embodiments of the present invention and their descriptions are used to explain the present invention and do not constitute an improper limitation of the present invention. In the drawings:

[0016] Figure 1 is a structural block diagram of a heating system according to an embodiment of the present utility model;

[0017] Figure 2 Schematic diagram of a heating system according to an embodiment of the present invention. DETAILED DESCRIPTION

[0018] To make the purpose, technical solutions, and advantages of the present invention more clear, the following will provide a clear and complete description of the technical solutions of the present invention in conjunction with specific embodiments of the present invention and the corresponding drawings. Obviously, the embodiments described are only some of the embodiments of the present invention, not all of them. All other embodiments derived by persons of ordinary skill in the art based on the embodiments of the present invention without inventive effort are also within the scope of protection of the present invention.

[0019] The technical solutions provided by various embodiments of the present invention are described in detail below with reference to the accompanying drawings.

[0020] refer to Figure 1According to an embodiment of the present invention, the heating system comprises at least: a reverse osmosis filtration system 10, a normal temperature water circuit 20, a hot tank heating system 30 and a water outlet 40. The water inlet of the reverse osmosis filtration system 10 can be connected to a tap water pipe, and the reverse osmosis filtration system 10 is used to filter the raw water from the tap water pipe into pure water. The pure water outlet of the reverse osmosis filtration system 10 is fluidically connected to the normal temperature water circuit 20 and the hot tank heating system 30, respectively. The hot tank heating system 30 uses a hot tank heating body heat storage technology to heat the pure water. The water outlet 40 is connected to a faucet, and the water from the normal temperature water circuit 20 and / or the hot tank heating system 30 flows out of the faucet.

[0021] When the user needs to take room temperature water, pure water flows out from the water outlet 40 through the room temperature water path 20, and the water outlet temperature of the pure water outlet can be between 5-38 degrees; when the user needs to take boiled water or boiling water, pure water is heated by the hot tank heating system 30 and flows out from the water outlet 40, and the water temperature of the boiled water or boiling water of the hot tank heating system can be between 90-100 degrees; when the user needs to take hot water, room temperature water and boiled water / boiling water are mixed and flow out through the drinking water outlet 40, thereby obtaining a large flow of hot water, and the water temperature of the hot water can be between 38-90 degrees.

[0022] The following combination Figure 2 The embodiment of the present application is described in detail. The heating system according to the embodiment of the present application generally has a filtering and purification function, for example, including a reverse osmosis filtration system. Figure 2 The reverse osmosis filtration system at least includes: a pre-filtration unit 11, a water inlet solenoid valve 12, a booster pump 13, a reverse osmosis filtration unit 14, a post-filtration unit 15, a flow meter 16 and a TDS (Total Dissolved Solids) sensor 17 connected in sequence.

[0023] Water enters the reverse osmosis filtration system through the water inlet and is fed to the pre-filtration unit 11. This unit typically includes a carbon-based filter medium designed to remove organic matter and chlorine from the water supply. This unit can be combined with a sediment filter to remove sediment and chlorine that could clog or damage the RO membrane. In practice, this unit can utilize, for example, an activated carbon filter element or a PP cotton filter element.

[0024] When the water inlet solenoid valve 12 is opened, the booster pump 13 supplies water to the reverse osmosis filter unit 14. The booster pump 13 can keep the water pressure of the water entering the reverse osmosis filter unit 14 at an ideal level. The reverse osmosis filter unit 14 is a filter using reverse osmosis (RO) technology. The reverse osmosis filter unit 14 has a water inlet, a permeate outlet, and a wastewater outlet (or concentrated water outlet). When the water supply enters the RO membrane under pressure (sufficient pressure to overcome the osmotic pressure), water molecules pass through the semi-permeable RO membrane, while salts and other pollutants do not pass through and are discharged through the wastewater outlet. This water that passes through the RO membrane is called permeate water or treated water, in which about 95% to 99% of dissolved salts are usually removed. In actual applications, the reverse osmosis filter unit 18 can use a reverse osmosis filter element, a nanofiltration filter element, or an ultrafiltration filter element.

[0025] The wastewater outlet of the reverse osmosis filtration unit 14 is connected to the wastewater channel 19 for discharging concentrated water after being filtered by the reverse osmosis membrane filter element. The wastewater channel 19 has a wastewater solenoid valve 191 for controlling the opening and closing of the wastewater channel.

[0026] The osmotic water output by the reverse osmosis filtration unit 14 reaches the post-filtration unit 15, which can effectively remove organic matter, residual chlorine and other radioactive substances in the water, and has the effects of decolorization, removing odor and further improving the taste. In actual applications, the post-filtration unit 15 can adopt a granular activated carbon filter element or a compressed activated carbon filter element. In addition, a flow meter 16 and a TDS sensor 17 are sequentially arranged downstream of the post-filtration unit 15. Among them, the flow meter 16 is used to monitor / monitor the outlet flow of pure water, and the TDS sensor 17 is used to perform on-site measurement of the TDS concentration level of water flowing out of the reverse osmosis filtration system (post-filtration unit 15). In some embodiments of the present application, an additional TDS sensor can be set upstream of the reverse osmosis filtration unit 14 to detect the TDS concentration level before the membrane of the reverse osmosis filtration unit 14.

[0027] The normal temperature water circuit 20 mainly includes a solenoid valve 21, which is used to control the opening and closing of the normal temperature water circuit 20. The hot tank heating system 30 is sequentially provided with a solenoid valve 31, a hot tank 32 and an impeller pump 33. The hot tank heating system can also be called a hot water circuit. The solenoid valve 31 is arranged at the water inlet of the hot water circuit to control the opening and closing of the hot tank 32. In an embodiment of the present application, the volume of the hot tank 32 may be 2L, and the hot tank 32 may include a water inlet, a water outlet and an air outlet for discharging steam. The impeller pump 33 is arranged at the water outlet of the hot tank 32, and the impeller pump 33 is used to extract hot water from the hot tank 32.

[0028] When room-temperature water is needed, solenoid valves 12 and 21 are opened and solenoid valve 31 is closed. Raw water then flows sequentially through pre-filtration unit 11, inlet solenoid valve 12, booster pump 13, reverse osmosis filtration unit 14, post-filtration unit 15, flowmeter 16, TDS sensor 17, and solenoid valve 21. Booster pump 13 then operates, and solenoid valves 12 and 21 open, allowing room-temperature water to flow out. During the process of drawing room-temperature water, booster pump 13 can operate at a preset duty cycle or a maximum duty cycle.

[0029] When boiling water is needed, solenoid valves 12 and 31 are opened and solenoid valve 21 is closed. Raw water then passes through pre-filtration unit 11, water inlet solenoid valve 12, booster pump 13, reverse osmosis filtration unit 14, post-filtration unit 15, flowmeter 16, TDS sensor 17, solenoid valve 31, hot tank 32, and impeller pump 33, flowing out of outlet 40. During the boiling / removal process, solenoid valves 12 and 31 are opened, solenoid valve 21 is closed, and booster pump 13 operates, allowing pure water to enter the hot tank for heating. Once the hot tank is filled with water, booster pump 13 stops operating. After heating is complete, hot water is output via impeller pump 33. Impeller pump 33 is a speed-adjustable impeller pump, and the flow rate of boiling / removal water can be controlled by adjusting the impeller pump's speed.

[0030] When hot water of different temperatures is needed, the pure water flow rate is controlled by controlling the PWM duty cycle (30%-100%) of the booster pump. The flow rate at the hot water end can be controlled by the speed-controlled impeller pump, thereby adjusting the mixing ratio of cold water and hot water to achieve the purpose of mixing water, and accurately achieve different temperatures of warm water. Among them, the water temperature of normal temperature water can be between 5-38 degrees Celsius, the water temperature of boiling water can be between 90-100 degrees Celsius, and the water temperature of hot water can be between 38-90 degrees Celsius.

[0031] Specifically, the booster pump 13 is a booster pump with an adjustable duty cycle. By adjusting the duty cycle of the booster pump 13, the water flow entering the reverse osmosis filtration unit 14 can be adjusted to adjust the clean water flow out of the post-filtration unit 15, thereby controlling the normal temperature water flow out of the normal temperature water channel 20.

[0032] In an embodiment of the present application, the booster pump 13 can select an 800G, 1000G or 1200G booster pump according to the required clean water flow rate, and the duty cycle of the booster pump 13 can be adjusted between 30% and 100%. Specifically, the booster pumps with different clean water flow rates change the flow rates of the pumps corresponding to different duty cycles as shown in the following Appendix 1-Table 3.

[0033] Table 1 Pump flow rates corresponding to different duty cycles of 800G pumps

[0034] PWM (%) 40 50 65 85 100 Q(ml / min) 1070 1480 2080 2710 3400

[0035] Table 2 Pump flow rates corresponding to different duty cycles of 1000G pumps

[0036] PWM (%) 30 45 60 85 100 Q(ml / min) 1360 2100 2810 3560 4100

[0037] Table 3 Pump flow rates corresponding to different duty cycles of 1200G pumps

[0038] PWM (%) 35 45 60 80 100 Q(ml / min) 1890 2320 3040 3890 4800

[0039] In the embodiment of the present application, the filtration system 10 may further include a pure water return waterway 18, the water inlet of the pure water return waterway 18 being connected to the water outlet of the post-filtration unit 15, and the water outlet of the pure water return waterway 18 being connected to the water inlet of the reverse osmosis filtration unit 14. The pure water return waterway 18 returns the pure water from the water outlet of the post-filtration unit 15 to the water inlet of the reverse osmosis filtration unit 14. Specifically, a solenoid valve 181 and a one-way valve 182 are provided on the pure water return waterway 18. When the TDS concentration before the RO membrane is high, the solenoid valve 12 and the solenoid valve 181 are opened, and the solenoid valve 21 and the solenoid valve 31 are closed, and the booster pump 13 is operated, so that the pure water after the RO membrane flows back to the front of the RO membrane, thereby solving the problem of excessively high TDS concentration in the water.

[0040] According to the above technical solution of the present application, by respectively setting up a normal temperature water circuit and a hot tank heating system connected to the filtration system, the outlet flow rate of normal temperature water is controlled by a booster pump, and the outlet flow rate of boiling water is controlled by an impeller pump, so that normal temperature water and boiling water can be mixed in a predetermined proportion to achieve precise control of the water temperature, thereby being able to quickly output hot water with precise temperature and large flow rate, meeting the various needs of customers.

[0041] Although the present disclosure has been described in detail with reference to specific embodiments thereof, those skilled in the art will appreciate that various changes and modifications may be made therein without departing from the spirit and scope of the embodiments. Therefore, the present disclosure is intended to cover modifications and variations of the present disclosure, and any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present disclosure shall be included within the scope of the claims of the present disclosure and their equivalents.

[0042] In addition, the features disclosed in the above description or claims or drawings, in their specific forms or according to the manner for performing the disclosed functions or the method or process for obtaining the disclosed results, can be used alone or in any combination of these features to implement the present invention in their different forms. Specifically, one or more features of any embodiment described herein can be combined with one or more features of any other embodiment described herein.

[0043] Protection may also be sought for any features disclosed in any one or more of the publications cited in conjunction with the present disclosure and / or incorporated by reference.

Claims

1. A heating system, characterized in that: include: reverse osmosis filtration system, hot tank heating system and water outlet; The reverse osmosis filtration system filters raw water into pure water, the reverse osmosis filtration system includes a booster pump, the pure water outlet of the reverse osmosis filtration system is fluidically connected to the outlet, and the booster pump adjusts the water flow rate of the pure water outlet; The hot tank heating system heats the pure water from the reverse osmosis filtration system; the hot tank heating system includes: a hot tank and an impeller pump, the impeller pump adjusts the water flow rate of the hot tank; A water outlet receives a predetermined flow of water from the pure water outlet and / or the hot tank heating system.

2. The heating system according to claim 1, characterized in that The reverse osmosis filtration system further includes a reverse osmosis filtration unit, and the booster pump is arranged upstream of the reverse osmosis filtration unit.

3. The heating system according to claim 2, characterized in that The reverse osmosis filtration system further includes: a pre-filtration unit and a post-filtration unit. The pre-filtration unit is arranged upstream of the booster pump, and the post-filtration unit is arranged downstream of the reverse osmosis filtration unit.

4. The heating system according to claim 3, characterized in that The reverse osmosis filtration system further includes a pre-membrane reflux water channel, which guides the pure water flowing out of the water outlet of the post-filtration unit to the water inlet of the reverse osmosis filtration unit.

5. The heating system according to claim 3, characterized in that The filtration system further includes a wastewater channel, wherein the wastewater channel is connected to the wastewater outlet of the reverse osmosis filtration unit.

6. The heating system according to claim 1, characterized in that Also includes: A normal temperature water channel is provided between the reverse osmosis filtration system and the water outlet, and the normal temperature water channel includes a first solenoid valve.

7. The heating system according to claim 1, characterized in that The impeller pump is arranged at the water outlet of the hot tank.

8. The heating system according to claim 1, wherein: A second solenoid valve is also provided at the water inlet of the hot tank heating system.

9. The heating system according to claim 1, characterized in that The booster pump is a booster pump with an adjustable duty cycle, and the duty cycle of the booster pump is between 30% and 100%.

10. The heating system according to claim 1, wherein The filtration system further includes at least one TDS sensor.

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