Reverse osmosis table type purified drinking water system with high water yield

Abstract

The utility model discloses a high-water-yield reverse osmosis table type purified drinking water system which comprises a raw water tank, a reversing valve, a booster pump, a reverse osmosis filtering module and a purified water supply module which are sequentially connected in series along a water outlet direction through a series pipeline. The interior of the raw water tank is divided into a raw water area and a wastewater buffer area. And a TDS detection module is in bypass connection with the series pipeline. The reverse osmosis filtration module is in bypass connection with a wastewater valve, and the wastewater valve is connected with a wastewater buffer area of the raw water tank through a pipeline; and a connecting pipeline of the wastewater valve and the wastewater buffer area of the raw water tank is also connected to the reversing valve through a water return pipeline bypass. The reversing valve is a three-way reversing valve or a four-way reversing valve and is provided with a first water inlet valve, a backflow valve and a water outlet valve, and the first water inlet valve is connected with the raw water area of the raw water tank through a throttling valve arranged on a first water inlet pipeline. According to the system, low-TDS water in the wastewater buffer area flows back and is reused by arranging the reversing valve with the backflow valve, so that the water production rate is increased.

Description

Technical Field

[0001] The utility model relates to the technical field of water purification equipment, in particular to a reverse osmosis table-type drinking water purification system with high water production rate. Background Art

[0002] At present, the raw water of common non-installation reverse osmosis tabletop water purifiers is stored in the raw water tank, and the raw water tank requires users to add tap water or purified water. In order to protect the performance of the RO membrane (RO is the abbreviation of Reverse Osmosis in English, and RO membrane means reverse osmosis membrane in Chinese), most common raw water tanks will be separated with a wastewater buffer zone or an independent wastewater tank. Every time the tabletop water purifier prompts to change the water source, it is necessary to pour out the remaining wastewater in the wastewater tank and then add water.

[0003] This traditional installation-free reverse osmosis tabletop water purifier will produce a fixed amount of wastewater even if the user adds low-TDS pure water to the original water tank. Due to its fixed water production rate, it cannot fully utilize the low-TDS and high-purity wastewater in the wastewater tank, resulting in great waste. (TDS means total dissolved solids in Chinese. The higher the TDS value, the more dissolved solids are contained in the water, and the lower the TDS value, the purer the water). Utility Model Content

[0004] In view of the deficiencies in the prior art, the utility model provides a reverse osmosis tabletop drinking water purification system with a high water production rate to overcome the deficiencies in the prior art.

[0005] In order to achieve the above objectives, the present invention is implemented through the following technical solutions:

[0006] A high-water-yield reverse osmosis tabletop drinking water purification system.

[0007] It includes a raw water tank, a reversing valve, a booster pump, a reverse osmosis filtration module and a clean water supply module which are sequentially arranged in series along the water outlet direction through a series pipeline;

[0008] The raw water tank is internally separated into a raw water area and a wastewater buffer area;

[0009] A TDS detection module is connected in bypass connection on the series pipeline;

[0010] The reverse osmosis filtration module is also connected to a wastewater valve in a bypass manner, and the wastewater valve is connected to the wastewater buffer area of ​​the raw water tank through a pipeline; and the connecting pipeline between the wastewater valve and the wastewater buffer area of ​​the raw water tank is also connected to the reversing valve through a return pipeline in a bypass manner.

[0011] Preferably, the reversing valve is a four-way reversing valve, which is provided with a first water inlet valve, a second water inlet valve, a reflux valve and a water outlet valve;

[0012] The first water inlet valve is connected to the raw water area of ​​the raw water tank via a throttle valve arranged on the first water inlet pipeline;

[0013] The second water inlet valve is directly connected to the raw water area of ​​the raw water tank through a second water inlet pipeline.

[0014] Preferably, the reversing valve is a three-way reversing valve, which is provided with a first water inlet valve, a reflux valve and a water outlet valve;

[0015] The first water inlet valve is connected to the raw water area of ​​the raw water tank through a throttle valve arranged on the first water inlet pipeline.

[0016] Furthermore, a sensor assembly is arranged on the side wall of the raw water tank; the sensor assembly includes a first sensor and a second sensor which are arranged in an upper and lower interval.

[0017] Furthermore, a partition is provided inside the raw water tank, and the partition separates the raw water tank into a raw water area and a wastewater buffer area.

[0018] Furthermore, the installation height of the first sensor is level with the top of the partition in the raw water tank, the installation height of the second sensor is located close to the bottom of the raw water tank, and the installation height of the second sensor is lower than the installation height of the first sensor.

[0019] Preferably, the reverse osmosis filtration module filters the incoming water source through a multi-stage filter element.

[0020] Preferably, the throttle valve is an electromagnetic throttle valve or a non-electric throttle valve.

[0021] Compared with the prior art, the beneficial effects of the utility model are:

[0022] In this case, a high-water-yield reverse osmosis desktop drinking water purification system is provided. A reversing valve with a reflux valve is set to return the low TDS water in the wastewater buffer zone for reuse, and a throttle valve is set to make the water levels in the raw water area and the wastewater buffer zone drop synchronously, thereby reducing the amount of residual wastewater and making full use of the low TDS water in the wastewater buffer zone to reuse water, thereby improving the water production rate.

[0023] In order to more clearly understand the present invention, the following will describe the preferred implementation modes of the present invention in conjunction with the accompanying drawings. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] Figure 1 This is a water connection diagram of Example 1 of the utility model;

[0025] Figure 2 This is the water connection diagram of Example 2 of the utility model.

[0026] Figure ID:

[0027] 110-raw water tank, 120-reversing valve, 130-TDS detection module, 140-boosting pump, 150-reverse osmosis filtration module, 160-wastewater valve, 170-clean water supply module, 180-sensor assembly, 190-throttle valve; 111-raw water area, 112-wastewater buffer area; 121-first water inlet valve, 122-reflux valve, 123-water outlet valve; 181-first sensor, 182-second sensor. DETAILED DESCRIPTION

[0028] In the description of the present invention, it should be understood that the terms "center", "longitudinal", "lateral", "upper", "lower", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside" and the like indicate positions or positional relationships based on the positions or positional relationships shown in the drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the present invention. In the description of the present invention, unless otherwise specified, "multiple" means two or more.

[0029] In addition, if there are terms such as "first" and "second", they are only used for descriptive purposes, mainly to distinguish different devices, elements or components (the specific types and structures may be the same or different), and are not used to indicate or imply the relative importance and quantity of the indicated devices, elements or components, and cannot be understood as indicating or implying relative importance.

[0030] In addition, it should be noted that, unless otherwise clearly stipulated and limited, the terms "installed", "provided with", "mounted / connected", "connected", etc. should be understood in a broad sense. For example, "connection" can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium, and it can be the internal connection of two components; for ordinary technicians in this field, the specific meanings of the above terms in the utility model can be understood according to specific circumstances.

[0031] Example 1

[0032] See also Figure 1 The utility model provides a high-water-yield reverse osmosis tabletop drinking water purification system.

[0033] It comprises a raw water tank (110), a reversing valve (120), a booster pump (140), a reverse osmosis filtration module (150) and a clean water supply module (170) which are sequentially connected in series along a water outlet direction through a series pipeline;

[0034] The raw water tank 110 is separated into a raw water area 111 and a waste water buffer area 112 by a partition, and a sensor assembly 180 is arranged on the side wall of the raw water tank;

[0035] The series pipeline is connected in a bypass manner with a TDS detection module (130);

[0036] The raw water tank (110) is internally separated into a raw water area (111) and a wastewater buffer area (112);

[0037] The reverse osmosis filtration module (150) is also connected to a wastewater valve (160) in a bypass manner, and the wastewater valve (160) is connected to the wastewater buffer zone (112) of the raw water tank (110) through a pipeline; and the connecting pipeline between the wastewater valve (160) and the wastewater buffer zone (112) of the raw water tank (110) is also connected to the reversing valve (120) in a bypass manner through a return pipeline.

[0038] Furthermore, the TDS detection module (130) is bypass-connected to the series pipeline between the reversing valve (120) and the boosting pump (140), or the TDS detection module (130) is bypass-connected to the series pipeline between the wastewater valve (160) and the wastewater buffer zone (112) of the raw water tank (110).

[0039] The reversing valve 120 is a four-way reversing valve, which is provided with a first water inlet valve (121), a second water inlet valve, a reflux valve 122 and a water outlet valve 123;

[0040] The first water inlet valve (121) is connected to the raw water area 111 of the raw water tank 110 via a throttle valve 190 arranged on the first water inlet pipeline, and the throttle valve (190) is an electromagnetic throttle valve or a non-electric throttle valve;

[0041] The second water inlet valve is directly connected to the raw water area 111 of the raw water tank 110 through a second water inlet pipeline.

[0042] Preferably, in the present embodiment, the throttle valve 190 is an electromagnetic throttle valve, which is normally in an open state and has no throttling function, and is no different from an ordinary water pipe; when the present drinking water purification system operates in a high water production rate mode, the electromagnetic valve is energized and the throttle valve 190 is switched to a throttling mode.

[0043] The return valve 122 of the reversing valve 120 is connected to the waste water valve 160 via a return water pipeline;

[0044] The water outlet valve 123 of the reversing valve 120 is connected to the booster pump 140 through a water outlet pipeline.

[0045] The TDS detection module 130 extends into the series pipeline through a detection probe. The TDS detection module 130 is used to detect the water source added by the user into the raw water tank. The water source can be tap water or pure water with a low TDS value.

[0046] The booster pump 140 has one end connected to the water outlet valve 123 of the reversing valve 120 through a pipeline, and the other end connected to the reverse osmosis filtration module 150 through a pipeline.

[0047] The reverse osmosis filtration module 150 has a first end connected to the booster pump 140 through a pipeline, a second end connected to the wastewater valve 160 through a pipeline, and a third end connected to the clean water supply module 170 through a pipeline; the reverse osmosis filtration module 150 filters the incoming water source through a multi-stage filter element, and the multi-stage filter element includes but is not limited to a PP cotton filter element, a carbon filter element, an RO filter element, a post-filter element, etc.

[0048] The wastewater valve 160 has one end connected to the reverse osmosis filtration module 150 through a pipeline, and the other end connected to the return valve 122 of the reversing valve 120 and the wastewater buffer zone 112 in the raw water tank 110 through a three-way connector on the pipeline.

[0049] The purified water supply module 170 is used to provide filtered drinking water to users.

[0050] Preferably, in this embodiment, the sensor assembly 180 includes a first sensor 181 and a second sensor 182 which are spaced apart from each other in an upper and lower manner. The installation height of the first sensor 181 is level with the top of the partition in the raw water tank 110, and the installation height of the second sensor 182 is located close to the bottom of the raw water tank 110, and the installation height of the second sensor 182 is lower than the installation height of the first sensor 181. The second sensor 182 is a low water level sensor, which is used to prompt the user that the raw water tank is short of water.

[0051] In this embodiment, when the water level in the raw water tank 110 is higher than the first sensor 181, the water level is also higher than the top of the partition, the area above the partition in the raw water tank 110 is connected, and the water level drops normally with the number of water uses; when the water level in the raw water tank 110 is lower than the top of the partition, the water level is also lower than the first sensor 181, the area below the partition in the raw water tank 110 is separated by the partition, and the first sensor 181 starts working. If the TDS detection module 130 detects that the TDS is lower than the set value at this time, or the user manually selects the high water production mode through the control interface, then the present drinking water purification system operates in the high water production mode. By setting the first sensor 181, the power consumption of the present drinking water purification system can be further finely controlled.

[0052] Example 2

[0053] The difference between Example 2 and Example 1 is that: the reversing valve 120 is a three-way reversing valve, which is provided with a first water inlet valve (121), a reflux valve 122 and a water outlet valve 123;

[0054] The first water inlet valve (121) is connected to the raw water area 111 of the raw water tank 110 via a throttle valve 190 arranged on the first water inlet pipeline.

[0055] Working principle:

[0056] 1. A partition is set in the middle of the raw water tank. When the raw water drops to the height of the first sensor, it will be separated into a raw water area and a wastewater buffer area.

[0057] 2. When the raw water is tap water or the TDS detection module detects that the raw water TDS is greater than the set value, the first water inlet valve (121) and the water outlet valve of the reversing valve are connected, and the second water inlet valve and the reflux valve are closed. The raw water flows from the raw water area through the first water inlet valve (121) of the reversing valve and enters, and flows out from the water outlet valve, and flows through the booster pump, the reverse osmosis filtration module, and the water purification supply module in sequence, and finally provides the user with purified pure water; at the same time, the waste water flows through the waste water valve and enters the waste water buffer area of ​​the raw water tank.

[0058] 3. When the raw water is pure water or the TDS detection module detects that the raw water TDS is less than the set value or the user manually selects the high water production mode through the control interface, the second water inlet valve, the reflux valve and the water outlet valve of the reversing valve are connected, and the first water inlet valve (121) is closed. The raw water flows from the raw water area through the throttle valve and enters from the second water inlet valve of the reversing valve, and flows out from the water outlet valve, and flows through the booster pump, the reverse osmosis filtration module, and the water purification supply module in sequence, and finally provides the user with purified pure water; at the same time, the water flowing out of the wastewater valve and the water flowing out of the wastewater buffer area are combined at the reflux valve and flow into the reversing valve, so as to make full use of the low TDS water in the wastewater buffer area for re-purification, thereby improving the water production rate.

[0059] 4. After the water production is adjusted by setting a throttle valve of appropriate specifications, the water level in the raw water area of ​​the raw water tank and the water level in the wastewater buffer area drop synchronously, making the water production rate controllable.

[0060] 5. The quality of raw water can be determined by the TDS detection module or selected by the user interface.

[0061] Compared with the prior art, the reverse osmosis desktop drinking water purification system with high water production rate in this case returns the low TDS water in the wastewater buffer zone for reuse by setting the reflux valve of the reversing valve, and sets a throttle valve to make the water levels in the raw water area and the wastewater buffer zone drop synchronously, thereby reducing the amount of residual wastewater and making full use of the low TDS water in the wastewater buffer zone to reuse water, thereby improving the water production rate.

[0062] The above-mentioned embodiments only express several implementation methods of the utility model, and the description is relatively specific and detailed, but it cannot be understood as limiting the scope of the utility model patent. It should be pointed out that for ordinary technicians in this field, several modifications and improvements can be made without departing from the concept of the utility model, which all belong to the protection scope of the utility model.

Claims

1. A high water production rate reverse osmosis tabletop drinking water purification system, characterized by: It comprises a raw water tank (110), a reversing valve (120), a booster pump (140), a reverse osmosis filtration module (150) and a clean water supply module (170) which are sequentially connected in series along a water outlet direction through a series pipeline; The raw water tank (110) is internally separated into a raw water area (111) and a wastewater buffer area (112); A TDS detection module (130) is connected in a bypass manner to the series pipeline; The reverse osmosis filtration module (150) is also connected to a wastewater valve (160) in a bypass manner, and the wastewater valve (160) is connected to the wastewater buffer zone (112) of the raw water tank (110) through a pipeline; and the connecting pipeline between the wastewater valve (160) and the wastewater buffer zone (112) of the raw water tank (110) is also connected to the reversing valve (120) in a bypass manner through a return pipeline.

2. The high water production rate reverse osmosis tabletop drinking water purification system according to claim 1, characterized in that: The reversing valve (120) is a four-way reversing valve, which is provided with a first water inlet valve (121), a second water inlet valve, a reflux valve (122) and a water outlet valve (123); The first water inlet valve (121) is connected to the raw water area (111) of the raw water tank (110) via a throttle valve (190) arranged on the first water inlet pipeline; The second water inlet valve is directly connected to the raw water area (111) of the raw water tank (110) through a second water inlet pipeline.

3. The high water production rate reverse osmosis tabletop drinking water purification system according to claim 1, characterized in that: The reversing valve (120) is a three-way reversing valve, which is provided with a first water inlet valve (121), a reflux valve (122) and a water outlet valve (123); The first water inlet valve (121) is connected to the raw water area (111) of the raw water tank (110) via a throttle valve (190) arranged on a first water inlet pipeline.

4. A high water production rate reverse osmosis tabletop drinking water purification system according to any one of claims 2 or 3, characterized in that: A sensor assembly (180) is arranged on the side wall of the raw water tank (110); the sensor assembly (180) comprises a first sensor (181) and a second sensor (182) which are arranged in an upper and lower manner with a spacing therebetween.

5. The high water production rate reverse osmosis tabletop drinking water purification system according to claim 4, characterized in that: A partition is provided inside the raw water tank (110), and the partition separates the raw water tank into a raw water area (111) and a wastewater buffer area (112).

6. A high water production rate reverse osmosis tabletop drinking water purification system according to claim 5, characterized in that: The installation height of the first sensor (181) is flush with the top of the partition in the raw water tank (110), and the installation height of the second sensor (182) is located close to the bottom of the raw water tank (110), and the installation height of the second sensor (182) is lower than the installation height of the first sensor (181).

7. The high water production rate reverse osmosis tabletop drinking water purification system according to claim 1, characterized in that: The reverse osmosis filtration module (150) filters the incoming water source through a multi-stage filter element.

8. The high water production rate reverse osmosis tabletop drinking water purification system according to claim 2, characterized in that: The throttle valve (190) is an electromagnetic throttle valve or a non-electric throttle valve.

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