Low energy consumption water purifier

Abstract

The utility model discloses a low energy consumption water purification device. The low energy consumption water purification device includes the filter mechanism for filtering, the desalination mechanism for desalination and the disinfection mechanism for disinfection, the desalination mechanism includes main desalination pipe, vice desalination pipe, diaphragm pump, nanofiltration membrane component, membrane capacitance deionization device and valve component for the water flow into membrane capacitance deionization device or vice desalination pipe of alternative control, the filter mechanism and disinfection mechanism are connected through main desalination pipe, diaphragm pump, nanofiltration membrane component and membrane capacitance deionization device are installed in sequence on main desalination pipe, vice desalination pipe is provided with on main desalination pipe in parallel with membrane capacitance deionization device. The low energy consumption water purification device of the utility model can select desalination path according to TSD, avoids unnecessary equipment starting, and saves energy consumption.

Description

Technical Field

[0001] This utility model relates to the field of water purification device technology, and in particular to a low-energy water purification device. Background Technology

[0002] Disaster sites are often short of water and require clean, drinkable water. However, in some high-altitude areas, poor transportation makes it difficult to keep up with subsequent supplies, which can easily lead to water shortages. Usually, some water purification devices are carried. Due to limited energy supply, water purification devices are prone to power outages, which can cause the internal pipes of the water purification devices to freeze, rendering the devices unusable. Different water sources have different TDS contents, so in order to ensure the purification effect, multiple desalination devices are usually used to remove salt. Multiple desalination devices increase power consumption. Utility Model Content

[0003] The technical problem to be solved by this utility model is to provide a low-energy water purification device that selects the purification path according to the water quality.

[0004] To address the aforementioned problems, this utility model provides a low-energy water purification device. The low-energy water purification device includes a filtration mechanism for filtration, a desalination mechanism for desalination, and a disinfection mechanism for disinfection. The desalination mechanism includes a main desalination pipe, a secondary desalination pipe, a diaphragm pump, a nanofiltration membrane module, a membrane capacitor deionization device, and a valve assembly for selectively controlling the flow of water into the membrane capacitor deionization device or the secondary desalination pipe. The filtration mechanism and the disinfection mechanism are connected through the main desalination pipe. The diaphragm pump, the nanofiltration membrane module, and the membrane capacitor deionization device are sequentially installed on the main desalination pipe. The secondary desalination pipe is connected in parallel with the membrane capacitor deionization device on the main desalination pipe.

[0005] Furthermore, the valve assembly includes a first valve and a second valve. The first valve is installed on the main desalination pipe and is located between the membrane capacitor deionization device and the connection point between the secondary desalination pipe and the main desalination pipe. The second valve is located on the secondary desalination pipe.

[0006] Furthermore, the valve assembly is a three-way valve, which is located at the connection point between the main desalination pipe and the auxiliary desalination pipe.

[0007] Furthermore, the desalination mechanism also includes a water quality sensor, which is mounted on the main desalination tube and located between the nanofiltration membrane assembly and the secondary desalination tube.

[0008] Furthermore, a third valve is provided on the main desalination pipe, which is located between the membrane capacitor deionization device and the auxiliary desalination pipe.

[0009] Furthermore, the membrane capacitor deionization device has a wastewater end, and a fourth valve is provided at the wastewater end.

[0010] Furthermore, the filtration mechanism includes a raw water pump, an ultrafiltration membrane module, and a security filter, which are connected in sequence via connecting pipes.

[0011] Furthermore, the disinfection mechanism is an ultraviolet disinfection device.

[0012] This utility model of a low-energy water purification device allows the valve assembly to connect to either a secondary desalination pipe or a membrane capacitor deionization device based on water quality conditions. When TDS < 1000, after the nanofiltration membrane assembly filters out ionic impurities, the water is directly discharged through the secondary desalination pipe, ensuring desalination effectiveness without the need for a membrane capacitor deionization device, while also reducing energy consumption. When TDS > 1000, the water is filtered on the main desalination pipe, meaning it undergoes dual filtration through both the nanofiltration membrane assembly and the membrane capacitor deionization device to ensure it meets drinking water requirements. Furthermore, the device employs a low-pressure nanofiltration membrane assembly with an operating pressure < 1 MPa, further reducing energy consumption for desalination. Attached Figure Description

[0013] Figure 1 This is a schematic diagram of a preferred embodiment of the low-energy water purification device of this utility model.

[0014] Figure 2 This is a schematic diagram of the internal structure of the low-energy water purification device of this utility model.

[0015] Figure 3 This is a schematic diagram of the purification path of the low-energy water purification device of this utility model.

[0016] Figure 4 This is a schematic diagram of the skeleton.

[0017] Figure 5 This is a structural diagram of the framework.

[0018] Figure 6 This is a schematic diagram of the panel structure.

[0019] The meanings of the labels in the attached diagram are as follows: Filtration device 3, Filtration mechanism 31, Raw water pump 311, Ultrafiltration membrane module 312, Security filter 313, Desalination mechanism 32, Main desalination pipe 321, Auxiliary desalination pipe 322, Water quality sensor 323, Diaphragm pump 324, Nanofiltration membrane module 325, Membrane capacitor deionization device 326, First valve 3271, Second valve 3272, Third valve 3273, Fourth valve 3274, Fifth valve 3275, Disinfection mechanism 33, Pressure sensor 34, Flow meter 35. Detailed Implementation

[0020] The present invention will be further described below with reference to the accompanying drawings.

[0021] like Figures 1 to 3 As shown, a preferred embodiment of the low-energy water purification device of this utility model includes a housing 1, a filtration mechanism 31, a desalination mechanism 32, and a disinfection mechanism 33. The filtration mechanism, desalination mechanism, and disinfection mechanism are all housed within the housing. The housing 1 is equipped with an inlet 101, a wastewater inlet 102, and an outlet 103. The inlet 101 is connected to the filtration mechanism 31 via a connecting pipe. The filtration mechanism 31 removes impurities from the raw water, specifically larger suspended solids and colloids. The filtration mechanism 31 is also connected to the wastewater inlet 102 via a connecting pipe, and discharges wastewater formed by colloidal particles and suspended particles through the wastewater inlet 102. The filtration mechanism 31 is connected to the desalination mechanism 32 via a connecting pipe. The desalination mechanism 32 removes ionic impurities from the water to reduce water hardness and prevent scaling in subsequent pipes and equipment. The desalination mechanism 32 and the disinfection mechanism 33 are connected by a connecting pipe. The disinfection mechanism 33 is used to disinfect the filtered and desalinated water to remove microorganisms and bacteria from the water. The disinfection mechanism 33 is an ultraviolet sterilizer. The disinfection mechanism 33 is connected to the water outlet 103 by a connecting pipe. A flow meter 35 is installed on the connecting pipe connecting the disinfection mechanism 33 and the water outlet 103. The flow meter 35 is used to detect the flow rate of the water outlet 103.

[0022] The filtration mechanism 31 includes a raw water pump 311, an ultrafiltration membrane module 312, and a security filter 313, which are connected sequentially via connecting pipes. Specifically, each of the raw water pump 311, ultrafiltration membrane module 312, and security filter 313 has an inlet and an outlet, and the ultrafiltration membrane module 312 also has a wastewater outlet. The inlet of the raw water pump 311 is connected to the outlet of the second medium via a connecting pipe, and the raw water pump 311 is used to pressurize the raw water to ensure sufficient pressure at the inlet of the ultrafiltration membrane module 312. The outlet of the raw water pump 311 is connected to the inlet of the ultrafiltration membrane module 312 via a connecting pipe, and the ultrafiltration membrane module 312 is used to filter the raw water, that is, to remove suspended solids and colloids from the raw water. The wastewater end of the ultrafiltration membrane module 312 is connected to the wastewater interface 102 via a connecting pipe. The suspended solids and colloids filtered from the raw water by the ultrafiltration membrane module 312 are discharged through the wastewater interface 102. The outlet end of the ultrafiltration membrane module 312 is connected to the inlet end of the security filter 313 via a connecting pipe. The security filter 313 is used to further remove suspended particulate matter, colloids and microorganisms from the raw water, that is, to remove smaller suspended particulate matter, colloids and microorganisms from the raw water, ensuring that the particulate matter will not damage the subsequent equipment and cause equipment failure.

[0023] The desalination mechanism 32 includes a main desalination pipe 321, a secondary desalination pipe 322, a water quality sensor 323, a diaphragm pump 324, a nanofiltration membrane assembly 325, and a membrane capacitor deionization device 326. The front end of the main desalination pipe 321 is connected to the security filter 313 of the filtration mechanism 31, and the rear end of the main desalination pipe 321 is connected to the disinfection mechanism 33. The diaphragm pump 324, the nanofiltration membrane assembly 325, and the membrane capacitor deionization device 326 are all installed on the main desalination pipe 321. The diaphragm pump 324 is used to pressurize the inlet of the nanofiltration membrane assembly 325 to ensure that the nanofiltration membrane assembly 325 has stable water pressure operation, thereby enabling the nanofiltration membrane assembly 325 to filter stably. The nanofiltration membrane assembly 325 is mainly used to remove ionic impurities dissolved in water, such as Na+, Cl-, and Ca. 2 +, Mg 2The membrane capacitor deionization device 326 is used to further remove ionic impurities dissolved in water, performing multiple desalination processes to reduce water hardness. A pressure sensor 34 is installed on the main desalination pipe 321, located between the diaphragm pump 324 and the security filter 313. The pressure sensor 34 detects the water pressure inside the main desalination pipe 321, allowing the diaphragm pump 324 to increase pressure accordingly. The front and rear ends of the auxiliary desalination pipe 322 are connected to the main desalination pipe 321. The auxiliary desalination pipe 322 is connected in parallel with the membrane capacitor deionization device 326 on the main desalination pipe 321; that is, the connection point between the front end of the auxiliary desalination pipe 322 and the main desalination pipe 321 is located between the membrane capacitor deionization device 326 and the nanofiltration membrane assembly 325, and the rear end of the auxiliary desalination pipe 322 is located behind the membrane capacitor deionization device 326. When TDS < 1000, after filtration of ionic impurities by the nanofiltration membrane module 325, the water is directly discharged into the disinfection unit 33 through the secondary desalination pipe 322. This eliminates the need for the membrane capacitor deionization device 326, ensuring desalination efficiency and reducing energy consumption. When TDS > 1000, the water is filtered on the main desalination pipe 321, meaning it undergoes dual filtration by both the nanofiltration membrane module 325 and the membrane capacitor deionization device 326 to ensure it meets drinking water requirements. Both the nanofiltration membrane module 325 and the membrane capacitor deionization device 326 have wastewater terminals. The wastewater terminal of the nanofiltration membrane module 325 is connected to the wastewater interface 102 via a connecting pipe, and the wastewater terminal of the membrane capacitor deionization device 326 is also connected to the wastewater interface 102 via a connecting pipe. To facilitate switching of water filtration paths, the desalination mechanism 32 also includes a valve assembly, which includes a first valve 3271 and a second valve 3272. The first valve 3271 is located on the main desalination pipe 321, and the second valve 3272 is located on the secondary desalination pipe 322. The first valve 3271 is located between the front end of the secondary desalination pipe 322 and the membrane capacitor deionization device 326. The first valve 3271 is used to control whether water enters the membrane capacitor deionization device 326, and the second valve 3272 is used to control the passage of the secondary desalination pipe 322, that is, the second valve 3272 is used to control whether water passes through the secondary desalination pipe 322. Thus, when TDS < 1000, the first valve 3271 is closed and the second valve 3272 is open; when TDS > 1000, the first valve 3271 is open and the second valve 3272 is closed. In other embodiments, the valve assembly may also use a three-way valve to replace the first valve 3271 and the second valve 3272, the three-way valve being located at the connection point of the main desalination pipe 321 and the auxiliary desalination pipe 322.

[0024] A third valve 3273 is installed on the connecting pipe between the membrane capacitor deionization device 326 and the wastewater interface. A fourth valve 3274 is installed between the rear ends of the membrane capacitor deionization device 326 and the auxiliary deionization pipe 322 on the main desalination pipe 321. Thus, when the second valve 3272 is open, the third valve 3273 and the fourth valve 3274 are closed, ensuring that water in the auxiliary desalination pipe 322 does not flow back into the membrane capacitor deionization device 326, and that wastewater generated by the ultrafiltration membrane module 312 and the nanofiltration membrane module 325 does not flow back into the membrane capacitor deionization device 326. A fifth valve 3275 is also installed on the main desalination pipe 321. The fifth valve 3275 is located between the disinfection mechanism 33 and the rear end of the auxiliary desalination pipe 322. The fifth valve 3275 can be closed when the equipment stops, preventing water in the nanofiltration membrane module 325 from flowing out under gravity. For ease of control and operation, the first valve 3271, the second valve 3272, the third valve 3273, the fourth valve 3274, and the fifth valve 3275 are typically solenoid valves.

[0025] Two water quality sensors 323 are installed on the main desalination pipe 321. One water quality sensor 323 is located between the nanofiltration membrane module 325 and the front end of the secondary desalination pipe 322, and is used to detect the total dissolved solids content after desalination by the nanofiltration membrane module 325. The other water quality sensor 323 is located between the membrane capacitive deionizer 326 and the rear end of the secondary desalination pipe 322, and is used to detect the total dissolved solids content after desalination by the membrane capacitive deionizer 326. The opening and closing of the first valve 3271 and the second valve 3272 are determined by the water quality sensor 323 located between the nanofiltration membrane module 325 and the front end of the secondary desalination pipe 322.

[0026] like Figures 4 to 6As shown, the housing 1 includes a frame 11 and an outer shell 12, with the outer shell 12 fixed to the frame 11. A mounting plate 13 is also provided on the frame 11, corresponding to the first chamber, and the circulation pump 22 is mounted on the mounting plate 13. Clips (not shown) are also installed on the mounting plate 13 for fixing the nanofiltration membrane assembly 325, the ultrafiltration membrane assembly 312, and the security filter 313. A handle 15 is provided on the frame 11 for easy lifting of the entire device, and the handle 15 passes through the outer shell 12 and connects to the frame 11. The water inlet 101 and wastewater inlet 102 are all located on the outer shell 12. The outer casing 12 includes a frame 121 and a panel 122. The frame 121 is fixed to the skeleton 11. The frame 121 consists of two left and right sides, and the panel 122 consists of two left and right sides. The panel 122 is fixed to the frame 121. Specifically, the left panel 122 is fixed to the left frame 121, and the right panel 122 is fixed to the right frame 121. The periphery of the panel 122 extends towards the frame 121 to form fixing posts 1221. The frame 121 is provided with fixing blocks 1211. The fixing posts 1221 are detachably fixed to the fixing blocks 1211, usually by screws. Thus, when maintenance is required, only the panel 122 needs to be removed.

[0027] Meanwhile, when the water quality meets the standards, one desalination step is reduced, and when the water quality does not meet the standards, the membrane capacitor deionization device 326 is used for desalination. Different desalination paths can be selected according to the water quality, which can reduce energy consumption. Furthermore, the use of a low-pressure nanofiltration membrane module 325, with an operating pressure of <1 MPa, further achieves low-energy desalination, thereby extending the water purification time of the water purification device and purifying more drinking water.

[0028] The above are merely embodiments of this utility model and do not limit the patent scope of this utility model. Any equivalent structure made using the contents of this utility model specification and drawings, whether directly or indirectly applied to other related technical fields, shall also be within the patent protection scope of this utility model.

Claims

1. A low-energy water purification device, characterized in that: The system includes a filtration mechanism for filtration, a desalination mechanism for desalination, and a disinfection mechanism for disinfection. The desalination mechanism includes a main desalination pipe, a secondary desalination pipe, a diaphragm pump, a nanofiltration membrane module, a membrane capacitor deionization device, and a valve assembly for selectively controlling the flow of water into the membrane capacitor deionization device or the secondary desalination pipe. The filtration mechanism and the disinfection mechanism are connected through the main desalination pipe. The diaphragm pump, the nanofiltration membrane module, and the membrane capacitor deionization device are sequentially installed on the main desalination pipe. The secondary desalination pipe is connected in parallel with the membrane capacitor deionization device on the main desalination pipe.

2. The low-energy water purification device as described in claim 1, characterized in that: The valve assembly includes a first valve and a second valve. The first valve is installed on the main desalination pipe and is located between the membrane capacitor deionization device and the connection point between the auxiliary desalination pipe and the main desalination pipe. The second valve is located on the auxiliary desalination pipe.

3. The low-energy water purification device as described in claim 1, characterized in that: The valve assembly is a three-way valve, which is located at the connection between the main desalination pipe and the auxiliary desalination pipe.

4. The low-energy water purification device as described in claim 2, characterized in that: The desalination mechanism also includes a water quality sensor, which is mounted on the main desalination tube and located between the nanofiltration membrane assembly and the secondary desalination tube.

5. The low-energy water purification device as described in claim 4, characterized in that: The main desalination pipe is equipped with a third valve, which is located between the membrane capacitor deionization device and the auxiliary desalination pipe.

6. The low-energy water purification device as described in claim 5, characterized in that: The membrane capacitor deionization device has a wastewater end, and a fourth valve is provided at the wastewater end.

7. The low-energy water purification device as described in claim 1, characterized in that: The filtration mechanism includes a raw water pump, an ultrafiltration membrane module, and a security filter, which are connected in sequence via connecting pipes.

8. The low-energy water purification device as described in claim 1, characterized in that: The disinfection mechanism is an ultraviolet disinfection device.

9. The low-energy water purification device as described in claim 1, characterized in that: It also includes a housing, in which the filtration mechanism, desalination mechanism and disinfection mechanism are all located.

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