Concentrated water purification system of water purifier

Abstract

The utility model discloses a concentrated water purification system of a water purifier, which is characterized by comprising a waste water tank, an electromagnetic valve I, a composite filter element, a booster pump, an RO (reverse osmosis) filter element, a water suction pump II, a heating module and a distillation device, the input end of the electromagnetic valve I is connected with a raw water pipeline, and the output end of the electromagnetic valve I is sequentially connected with the composite filter element, the booster pump and the RO filter element through a pipeline; the RO filter element is provided with a pure water outlet and a wastewater outlet, and a wastewater pipe I is connected between the wastewater outlet and the wastewater tank; a waste water pipe II is connected between the waste water tank and the water suction pump II, the water suction pump II is connected with the heating module, the heating module is connected with the distillation device, and a waste water pipe III is connected between the distillation device and the waste water tank, so that distilled waste water returns to the waste water tank and is distilled again after being mixed with waste water newly produced by the RO filter element. According to the utility model, continuous circulation is realized, so that waste water is reduced, usable water is increased, and the effect of increasing water yield is achieved.

Description

Technical Field

[0001] The utility model relates to the technical field of water purifiers, and more specifically to a concentrated water purification system for a water purifier. Background Art

[0002] The water inlet of existing countertop water purifiers is generally from a water tank, so in order to avoid frequent water changes, the water production rate needs to be increased to achieve a better user experience. Existing solutions: 1. Increase the water resistance of concentrated water to increase the single recovery rate; 2. Mix the concentrated water with the raw water and circulate the filtration to increase the final recovery rate. Insufficients of Solution 1: Increasing the water resistance of concentrated water will slow down the flow rate on the surface of the RO membrane, making it easier for impurities to accumulate on the surface, which will eventually shorten the life of the RO membrane and increase the user's cost of use; Insufficients of Solution 2: Gradual concentration will cause the inlet TDS to gradually increase, and the outlet water quality will deteriorate under the same desalination rate. For example, the Chinese patent authorization announcement number is CN217627887U, which discloses a reverse osmosis concentrated water recovery system, including a raw water tank, a reuse water tank, an ultrafiltration water tank, a reverse osmosis device and a sludge tank; the raw water tank is connected to a coagulation device; the coagulation device is provided with a dosing device; the coagulation device is connected to a multi-media filter, a disc filter and a UF filter arranged in series; the UF filter is respectively connected to the reuse water tank and the ultrafiltration water tank; the ultrafiltration water tank is connected to a first-level reverse osmosis device; the first-level reverse osmosis device is respectively connected to the reuse water tank and the second-level reverse osmosis device; the second-level reverse osmosis device is connected to a coagulation device; the coagulation device is provided with a dosing device; the coagulation device is connected to a mud-water separation device, a multi-media filter and an ion filter arranged in series; the ion filter is connected to the reuse water tank. This patent structure makes reasonable use of circulating water and reduces the water cost of the enterprise, but the disadvantage is that the concentrated water is refluxed and repeatedly filtered, which is easy to accumulate impurities and increase the user's use cost. For this reason, it is necessary to further improve the existing technology. Summary of the invention

[0003] The purpose of the utility model is to solve the deficiencies of the prior art and to provide a stable and reliable concentrated water purification system for a water purifier, which increases the water production rate of the machine, reduces waste water, and achieves the purpose of saving water.

[0004] The utility model adopts the following technical solutions to achieve the above-mentioned purpose: a concentrated water purification system for a water purifier, characterized in that it includes a wastewater tank, a solenoid valve 1, a composite filter element, a booster pump, an RO filter element, a water pump 2, a heating module, and a distillation device. The input end of the solenoid valve 1 is connected to a raw water pipeline, and the output end of the solenoid valve 1 is connected to the composite filter element, the booster pump and the RO filter element in sequence through a pipeline. The RO filter element is provided with a pure water outlet and a wastewater outlet, and a wastewater pipe 1 is connected between the wastewater outlet and the wastewater tank.

[0005] Wastewater pipe 2 is connected between the wastewater tank and water pump 2, water pump 2 is connected to the heating module, the heating module is connected to the distillation device, and wastewater pipe 3 is connected between the distillation device and the wastewater tank, so that the distilled wastewater returns to the wastewater tank and is mixed with the new wastewater from the RO filter element and then distilled again.

[0006] As a further illustration of the above scheme, the distillation device includes a distillation water storage tank and a distillation membrane. The distillation membrane is arranged in the distillation water storage tank. The output end of the distillation water storage tank is connected to a water pump 1. A distilled water pipeline is connected between the water pump 1 and the pure water outlet. The distilled water is transported to the pure water outlet position by the water pump 1.

[0007] Furthermore, a check valve is provided between the pure water outlet and the distilled water pipeline to prevent the distilled water from flowing back into the RO filter element.

[0008] Furthermore, the pure water outlet of the RO filter element is connected to a pure water output pipe, the pure water output pipe is connected to a cold pure water output branch and a hot pure water output branch, and the hot pure water output branch is sequentially provided with a second check valve, a heating module and a second solenoid valve.

[0009] Furthermore, a raw water tank is arranged on one side of the waste water tank, and the waste water tank is connected to the raw water tank as a whole, but is separated by a baffle in the middle.

[0010] Furthermore, the waste water extracted by the second pump is heated to 70° C. by a heating module and then enters the distillation device.

[0011] Furthermore, the wastewater tank is provided with a wastewater tank opening, a wastewater pipe 1 is connected to the wastewater tank opening, and a water pump 2 is connected to the bottom of the wastewater tank opening.

[0012] The beneficial effects that can be achieved by the utility model by adopting the above technical solution are:

[0013] The utility model adopts a water purifier concentrated water purification system which is mainly composed of a wastewater tank, a solenoid valve, a composite filter element, a booster pump, an RO filter element, a water pump, a heating module, and a distillation device. The use of membrane distillation to purify wastewater will not affect the service life of the RO filter element membrane, and the desalination rate of the distillation is not affected by the initial water quality. The applicability of small-flux wastewater purification is higher than that of the RO filter element. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 It is a structural schematic diagram of the utility model.

[0015] Explanation of the accompanying drawings: 1, waste water tank 2, solenoid valve 1, 3, composite filter element 4, booster pump 5, RO filter element 6, water pump 2 7, heating module 8, distillation device 8-1, distillation water storage tank 8-2, distillation membrane 8-3, water pump 1 8-4, distilled water pipeline 9, raw water pipeline 10, waste water pipe 1 11, waste water pipe 2 12, waste water pipe 3 13, raw water tank 14, check valve 1 15, cold pure water output branch 16, hot pure water output branch 17, check valve 2 18, heating module 19, solenoid valve 2. DETAILED DESCRIPTION

[0016] In the description of the present invention, it should be noted that directional words, such as the terms "center", "lateral", "longitudinal", "length", "width", "thickness", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", "clockwise", "counterclockwise", etc., indicating directions and positional relationships are based on the directions or positional relationships shown in the accompanying drawings, which are only for the convenience of narrating 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 cannot be understood as limiting the specific protection scope of the present invention.

[0017] In addition, the terms "first" and "second" are only used for descriptive purposes and cannot be understood as indicating or implying relative importance or implicitly indicating the number of technical features. Therefore, the definition of "first" and "second" features can explicitly or implicitly include one or more of the features. In the description of the utility model, "at least" means one or more, unless otherwise clearly and specifically defined.

[0018] In the present invention, unless otherwise specified and limited, the terms "assembly", "connection" and "connection" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can also be a mechanical connection; it can be directly connected, or it can be connected through an intermediate medium, or the two elements can be internally connected. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0019] In the utility model, unless otherwise specified and limited, a first feature being "above" or "below" a second feature may include that the first and second features are in direct contact, or may include that the first and second features are not in direct contact but are in contact through another feature between them. Moreover, a first feature being "above", "below" and "above" a second feature includes that the first feature is directly above and obliquely above the second feature, or simply means that the horizontal height of the first feature is higher than the height of the second feature. A first feature being "above", "below" and "below" a second feature includes that the first feature is directly below or obliquely below the second feature, or simply means that the horizontal height of the first feature is lower than the second feature.

[0020] The following is a further description of the specific implementation of the utility model in conjunction with the drawings of the specification, so that the technical solution and its beneficial effects of the utility model are clearer and more explicit. The following description of the embodiments with reference to the drawings is exemplary and intended to explain the utility model, and cannot be understood as limiting the utility model.

[0021] like Figure 1 As shown, the utility model is a concentrated water purification system for a water purifier, comprising a wastewater tank 1, a solenoid valve 1 2, a composite filter element 3, a booster pump 4, an RO filter element 5, a pump 2 6, a heating module 7, and a distillation device 8. The input end of the solenoid valve 1 is connected to a raw water pipeline 9, and the output end of the solenoid valve 1 is connected to the composite filter element 3, the booster pump 4, and the RO filter element 5 in sequence through a pipeline. The RO filter element is provided with a pure water outlet and a wastewater outlet, and a wastewater pipe 10 is connected between the wastewater outlet and the wastewater tank; a wastewater pipe 2 11 is connected between the wastewater tank 1 and the pump 2 6, the pump 2 6 is connected to the heating module 7, the heating module 7 is connected to the distillation device 8, and a wastewater pipe 3 12 is connected between the distillation device 8 and the wastewater tank 1, so that the distilled wastewater returns to the wastewater tank 1, and is mixed with the newly prepared wastewater of the RO filter element and then distilled again. In this embodiment, a raw water tank 13 is provided on one side of the wastewater tank 1, and the wastewater tank is connected to the raw water tank as a whole, but separated by a baffle in the middle. The wastewater extracted by the pump 2 is heated to 70°C by the heating module and then enters the distillation device. The wastewater tank is provided with a wastewater tank port, the wastewater pipe 1 is connected to the wastewater tank port, and the bottom of the wastewater tank port is connected to the pump 2.

[0022] The distillation device 8 includes a distillation water storage tank 8-1 and a distillation membrane 8-2. The distillation membrane is arranged in the distillation water storage tank. The output end of the distillation water storage tank is connected to a pump 8-3. A distilled water pipeline 8-4 is connected between the pump 1 and the pure water outlet. The distilled water is transported to the pure water outlet position by the pump 1. A check valve 14 is arranged between the pure water outlet and the distilled water pipeline to prevent the distilled water from flowing back into the RO filter element.

[0023] Furthermore, the pure water outlet of the RO filter element is connected to a pure water output pipe, and the pure water output pipe is connected to a cold pure water output branch 15 and a hot pure water output branch 16. The hot pure water output branch is sequentially provided with a check valve 17, a heating module 18 and a solenoid valve 19. The hot pure water output branch can provide hot pure water to the water use point, while the cold pure water output branch provides cold pure water.

[0024] During the operation, the raw water passes through solenoid valve 1, composite filter element, booster pump, and RO filter element, and then the pure water is discharged through the water outlet. The waste water will flow back to the wastewater tank. The water pump 2 will draw the wastewater and heat it to 70°C through the heating module. After that, it will pass through the membrane distillation device to produce distilled water to the distilled water storage tank; the distilled wastewater will return to the wastewater tank, mix with the newly produced wastewater from RO, and then distill it again; the continuous cycle will reduce the wastewater and increase the amount of usable water to achieve the effect of increasing the water production rate.

[0025] Compared with the prior art, the utility model adopts membrane distillation to purify the wastewater of the water purifier, increases the water production rate, does not affect the service life of the RO membrane, the desalination rate of the distillation is not affected by the initial water quality, and the applicability of small-flux wastewater purification is higher than that of the RO filter element.

[0026] The above is only a preferred embodiment of the present invention. It should be pointed out that a person skilled in the art can make several modifications and improvements without departing from the inventive concept of the present invention, and these modifications and improvements all fall within the protection scope of the present invention.

Claims

1. A water purifier concentrated water purification system, characterized in that: It includes a wastewater tank, a solenoid valve 1, a composite filter element, a booster pump, an RO filter element, a water pump 2, a heating module, and a distillation device. The input end of the solenoid valve 1 is connected to a raw water pipeline, and the output end of the solenoid valve 1 is connected to the composite filter element, the booster pump, and the RO filter element in sequence through a pipeline. The RO filter element is provided with a pure water outlet and a wastewater outlet, and a wastewater pipe 1 is connected between the wastewater outlet and the wastewater tank. A second wastewater pipe is connected between the wastewater tank and the second water pump, the second water pump is connected to the heating module, the heating module is connected to the distillation device, and a third wastewater pipe is connected between the distillation device and the wastewater tank.

2. A water purifier concentrated water purification system according to claim 1, characterized in that: The distillation device includes a distillation water storage tank and a distillation membrane. The distillation membrane is arranged in the distillation water storage tank. The output end of the distillation water storage tank is connected to a water pump. A distilled water pipeline is connected between the water pump and the pure water outlet. The distilled water is transported to the pure water outlet position through the water pump.

3. A water purifier concentrated water purification system according to claim 2, characterized in that: A check valve 1 is arranged between the pure water outlet and the distilled water pipeline.

4. A water purifier concentrated water purification system according to claim 2, characterized in that: The pure water outlet of the RO filter element is connected to a pure water output pipe, the pure water output pipe is connected to a cold pure water output branch and a hot pure water output branch, and the hot pure water output branch is sequentially provided with a second check valve, a heating module and a second solenoid valve.

5. A water purifier concentrated water purification system according to claim 1, characterized in that: A raw water tank is arranged on one side of the waste water tank. The waste water tank and the raw water tank are connected as one, but separated by a baffle in the middle.

6. A water purifier concentrated water purification system according to claim 1, characterized in that: The waste water extracted by the second pump is heated to 70°C by the heating module and then enters the distillation device.

7. A water purifier concentrated water purification system according to claim 1, characterized in that: The wastewater tank is provided with a wastewater tank opening, a wastewater pipe 1 is connected to the wastewater tank opening, and the bottom of the wastewater tank opening is connected to a water pump 2.

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