CN212151924U - Water filtration and purification system with high-purity wastewater ratio and water purifier - Google Patents
Water filtration and purification system with high-purity wastewater ratio and water purifier Download PDFInfo
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- CN212151924U CN212151924U CN201922477752.8U CN201922477752U CN212151924U CN 212151924 U CN212151924 U CN 212151924U CN 201922477752 U CN201922477752 U CN 201922477752U CN 212151924 U CN212151924 U CN 212151924U
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Abstract
The utility model discloses a drainage clean system of high-purity waste water ratio, be provided with the electrodialysis processing unit, diverging device and pure water retreatment unit, the raw water obtains the pure water after getting into electrodialysis processing unit pure water passageway and gets into the diverging device reposition of redundant personnel, partial pure water A discharges into the raw water of pure water retreatment unit as pure water retreatment unit, produce the water discharge as the system after pure water retreatment unit purifies, remaining part pure water B gets into the dense water passageway of electrodialysis processing unit, the dense water of electrodialysis processing unit exhaust is discharged as the dense water of system. The pressure of the pure water channel inlet of the electrodialysis treatment unit is from raw water, and the pressure of the pure water channel outlet is the pressure of the raw water minus the pressure drop of the membrane stack, and is the minimum in the whole pure water channel. The inlet pressure of the concentrated water channel is equal to the outlet pressure of the pure water channel and is the maximum value of the pressure of the whole concentrated water channel, so that the pressure of the whole concentrated water channel is less than the pressure of the pure water channel, concentrated water cannot permeate into the pure water channel, the pure water is prevented from being polluted, and the desalting rate of the electrodialyzer is ensured.
Description
Technical Field
The utility model relates to a water purifier field especially relates to a drainage clean system of high-purity waste water ratio.
Background
The household electrodialysis treatment unit can remove heavy metals, hardness and organic pollutants in water, thereby achieving the purpose of water purification. The main structure of the household electrodialysis treatment unit is an electrodialysis membrane stack, and the electrodialysis membrane stack is provided with two channels, a pure water channel and a wastewater channel. When in general design, inlet water is directly divided into two paths to enter the membrane stack, pure water channels are converged together to a pure water outlet when outlet water is discharged, a waste water channel is converged to a waste water outlet, and the ratio of the obtained pure waste water is 1: 1. In the design of a household water purifier, a flow regulating valve or a waste water plug (small hole) is usually added at the outlet end of concentrated water to regulate the ratio of the high-purity waste water to be increased to 1.5:1 to 10:1, and the specific ratio is determined according to the water quality condition of inlet water. However, the electrodialysis ion exchange membrane has water permeating through the membrane under the condition of pressure difference between the two surfaces, and according to the design, the wastewater with high salinity on one side of the membrane permeates to one side of the pure water due to pressure driving, so that the pure water is polluted, and the desalination rate is reduced. The greater the pressure drop across the stack itself, the more concentrate permeates and the poorer the performance.
Therefore, in order to overcome the defects of the prior art, it is necessary to provide a water filtration and purification system with high purity wastewater ratio.
Disclosure of Invention
One of the purposes of the utility model is to avoid the weak point of the prior art and provide a water filtration purification system that high-purity waste water compares, can solve the problem of electrodialyzer dense water to fresh water infiltration, guarantee the desalination, improve holistic pure waste water and compare.
The above object of the present invention is achieved by the following technical measures.
The utility model provides a drainage purification system of high-purity waste water ratio, be provided with electrodialysis treatment unit, diverging device and pure water retreatment unit, the pure water that obtains after the raw water gets into electrodialysis treatment unit pure water passageway gets into the diverging device reposition of redundant personnel, and partial pure water A discharges into pure water retreatment unit and regards as the raw water of pure water retreatment unit, and the pure water retreatment unit purifies the back and discharges as system product water, and remaining partial pure water B gets into the dense water passageway of electrodialysis treatment unit, and the dense water that electrodialysis treatment unit discharged is as the dense water of system and discharges.
Preferably, the flow dividing device is a three-way valve, a water inlet end of the three-way valve is communicated with a pure water outlet of the electrodialysis treatment unit, a first water outlet end of the three-way valve is communicated with a water inlet of the pure water retreatment unit, and a second water outlet end of the three-way valve is communicated with a concentrated water inlet of the electrodialysis treatment unit.
Preferably, the flow dividing device is a water flow divider, a water inlet of the water flow divider is communicated with a pure water outlet of the electrodialysis treatment unit, a first water outlet end of the water flow divider is communicated with a raw water inlet of the pure water retreatment unit, and a second water outlet end of the water flow divider is communicated with a concentrated water inlet of the electrodialysis treatment unit.
Preferably, the pure water re-treatment unit is one or more of an activated carbon filter element, a PP cotton filter element, a ceramic filter element, an ultrafiltration membrane filter element or a nanofiltration membrane filter element.
Preferably, the pure water reprocessing unit is set to be multistage, and each stage of pure water reprocessing unit is an activated carbon filter element, a PP cotton filter element, a ceramic filter element, an ultrafiltration membrane filter element or a nanofiltration membrane filter element.
Preferably, the pure water passage inlet and the concentrate passage inlet are on the same side or on opposite sides of the electrodialysis treatment unit.
Preferably, a first water pressure detection device and a water pressure adjusting device are arranged at an outlet of the electrodialysis concentrated water channel, and the first water pressure detection device is electrically connected with the water pressure adjusting device; the water pressure adjusting device is arranged on the rear side of the first water pressure detecting device relative to the flowing direction of water flow.
Preferably, the outlet of the electrodialysis pure water channel is provided with a second water pressure detection device.
Preferably, the water pressure regulating device is a flow regulating valve or a waste water plug.
The utility model discloses a drainage clean system of high-purity waste water ratio, be provided with the electrodialysis processing unit, diverging device and pure water retreatment unit, the pure water that the raw water got into behind the electrodialysis processing unit pure water passageway gets into the diverging device reposition of redundant personnel, partial pure water A discharges into the pure water retreatment unit and regards as the raw water of pure water retreatment unit, produce the water discharge as the system after the pure water retreatment unit purifies, residual part pure water B gets into the dense water passageway of electrodialysis processing unit, the dense water of electrodialysis processing unit exhaust is as the dense water discharge of system. In the system, the pressure at the inlet of the pure water channel of the electrodialysis treatment unit is from raw water, and the pressure at the outlet of the pure water channel is obtained by subtracting the pressure drop of the membrane stack from the pressure of the raw water, so that the pressure is the minimum in the whole pure water channel. The pressure of the inlet of the concentrated water channel is equal to the pressure of the outlet of the pure water channel and is the maximum value of the pressure of the whole concentrated water channel, so that the pressure of the whole concentrated water channel is less than the pressure of the pure water channel, concentrated water cannot permeate the pure water channel, the pure water is prevented from being polluted by the concentrated water, and the desalination rate of the electrodialyzer is ensured. Meanwhile, pure water enters the concentrated water channel, and the concentrated water channel is cleaned, so that the concentrated water channel is not easy to scale.
Another object of the utility model is to provide a water purifier sets up the drainage clean system that a high pure waste water compares, can solve the problem of electrodialyzer dense water to fresh water infiltration, guarantees the desalination, improves holistic pure waste water and compares.
The above object of the present invention is achieved by the following technical measures.
The utility model provides a water purifier, the drainage clean system who is provided with high-purity waste water ratio, this drainage clean system of high-purity waste water ratio is provided with electrodialysis treatment unit, diverging device and pure water retreatment unit, the pure water that obtains after raw water gets into electrodialysis treatment unit pure water passageway gets into the diverging device reposition of redundant personnel, and partial pure water A discharges into pure water retreatment unit and is the raw water of pure water retreatment unit, and the water of producing as the system after the pure water retreatment unit purifies discharges, and remaining partial pure water B gets into the dense water passageway of electrodialysis treatment unit, and the dense water that electrodialysis treatment unit discharged is discharged as the dense water of system.
Preferably, the flow dividing device is a three-way valve, a water inlet end of the three-way valve is communicated with a pure water outlet of the electrodialysis treatment unit, a first water outlet end of the three-way valve is communicated with a raw water inlet of the pure water retreatment unit, and a second water outlet end of the three-way valve is communicated with a concentrated water inlet of the electrodialysis treatment unit.
Preferably, the flow dividing device is a water flow divider, a water inlet of the water flow divider is communicated with a pure water outlet of the electrodialysis treatment unit, a first water outlet end of the water flow divider is communicated with a raw water inlet of the pure water retreatment unit, and a second water outlet end of the water flow divider is communicated with a concentrated water inlet of the electrodialysis treatment unit.
Preferably, the pure water re-treatment unit is one or more of an activated carbon filter element, a PP cotton filter element, a ceramic filter element, an ultrafiltration membrane filter element or a nanofiltration membrane filter element.
Preferably, the pure water reprocessing unit is set to be multistage, and each stage of pure water reprocessing unit is an activated carbon filter element, a PP cotton filter element, a ceramic filter element, an ultrafiltration membrane filter element or a nanofiltration membrane filter element.
Preferably, the pure water passage inlet and the concentrate passage inlet are on the same side or on opposite sides of the electrodialysis treatment unit.
Preferably, a first water pressure detection device and a water pressure adjusting device are arranged at an outlet of the electrodialysis concentrated water channel, and the first water pressure detection device is electrically connected with the water pressure adjusting device; the water pressure adjusting device is arranged on the rear side of the first water pressure detecting device relative to the flowing direction of water flow.
Preferably, the outlet of the electrodialysis pure water channel is provided with a second water pressure detection device.
Preferably, the water pressure regulating device is a flow regulating valve or a waste water plug.
The utility model discloses a water purifier, be provided with the drainage clean system that high-purity waste water compares, this drainage clean system that high-purity waste water compares is provided with the electrodialysis processing unit, diverging device and pure water retreatment unit, the pure water that obtains after the raw water gets into electrodialysis processing unit pure water passageway gets into the diverging device reposition of redundant personnel, partial pure water A discharges into the pure water retreatment unit as the raw water of pure water retreatment unit, produce the water discharge as the system after the pure water retreatment unit purifies, residual pure water B gets into the dense water passageway of electrodialysis processing unit, the dense water of electrodialysis processing unit exhaust is discharged as the dense water of system. In the system, the pressure at the inlet of the pure water channel of the electrodialysis treatment unit is from raw water, and the pressure at the outlet of the pure water channel is obtained by subtracting the pressure drop of the membrane stack from the pressure of the raw water, so that the pressure is the minimum in the whole pure water channel. The pressure of the inlet of the concentrated water channel is equal to the pressure of the outlet of the pure water channel and is the maximum value of the pressure of the whole concentrated water channel, so that the pressure of the whole concentrated water channel is less than the pressure of the pure water channel, concentrated water cannot permeate the pure water channel, the pure water is prevented from being polluted by the concentrated water, and the desalination rate of the electrodialyzer is ensured. Meanwhile, the concentrated water channel has pure water entering and also plays a role in cleaning the concentrated water channel, so that the concentrated water channel is not easy to scale, and the service life of the water purifier is prolonged.
Drawings
The present invention will be further described with reference to the accompanying drawings, but the contents in the drawings do not constitute any limitation to the present invention.
Fig. 1 is a water path schematic diagram of embodiment 1 of the water filtration and purification system with high purity wastewater ratio of the present invention.
Fig. 2 is a water path schematic diagram of embodiment 2 of the water filtration and purification system for high-purity wastewater ratio of the present invention.
In fig. 1 to 2, the method includes:
an electrodialysis treatment unit 100, a pure water passage inlet 110, a pure water passage outlet 120, a concentrated water passage inlet 130, a concentrated water passage outlet 140, a flow dividing device 200, a pure water retreatment unit 300, a first water pressure detection device 400, a second water pressure detection device 500, and a water pressure adjustment device 600.
Detailed Description
The present invention will be further illustrated with reference to the following examples.
Example 1.
A water filtration purification system with a high purity wastewater ratio is provided with an electrodialysis treatment unit 100, a flow dividing device 200 and a pure water retreatment unit 300 as shown in figure 1, wherein pure water obtained after raw water enters a pure water channel of the electrodialysis treatment unit 100 enters the flow dividing device 200 to be divided, part of the pure water A is discharged into the pure water retreatment unit 300 to be used as raw water of the pure water retreatment unit 300, the raw water is purified by the pure water retreatment unit 300 to be discharged as system produced water, the rest of the pure water B enters a concentrated water channel of the electrodialysis treatment unit 100, and concentrated water discharged by the electrodialysis treatment unit 100 is discharged as system concentrated water. The pressure of the pure water channel inlet 110 of the electrodialysis treatment unit 100 is from raw water, and is the same as the raw water pressure, when water flows through the membrane stack of the electrodialysis treatment unit 100, the membrane stack will have reverse acting force on the raw water, so that the water flow pressure is reduced, and the pressure of the pure water channel outlet 120 is the pressure of the raw water minus the pressure drop of the membrane stack, so that the pressure of the pure water channel outlet 120 is the minimum in the whole pure water channel. The pressure of the inlet 130 of the concentrated water channel is equal to the pressure of the outlet 120 of the pure water channel and is the maximum value of the pressure of the whole concentrated water channel, so that the pressure of the whole concentrated water channel is less than the pressure of the pure water channel, at the moment, only the water flow in the pure water channel can permeate the membrane to permeate the concentrated water channel, the concentrated water cannot permeate the pure water channel, the pure water is prevented from being polluted by the concentrated water, and the desalination rate of the electric dialyzer is ensured. Meanwhile, pure water enters the concentrated water channel, and the concentrated water channel is cleaned, so that the concentrated water channel is not easy to scale.
In this embodiment, the flow dividing device 200 is a three-way valve, a water inlet end of the three-way valve is communicated with the pure water outlet of the electrodialysis treatment unit 100, a first water outlet end of the three-way valve is communicated with the raw water inlet of the pure water retreatment unit 300, and a second water outlet end of the three-way valve is communicated with the concentrated water inlet of the electrodialysis treatment unit 100. It should be noted that the amount of pure water distributed by the distribution device 200 to the first water outlet end and the second water outlet end is not particularly limited, and varies with the pressure of the pure water passage and the pressure of the concentrate passage.
In this embodiment, the inlet of the pure water passage and the inlet of the concentrated water passage are on the same side or opposite sides of the electrodialysis treatment unit 100. In the present embodiment, the inlet of the pure water passage and the inlet of the concentrated water passage are disposed on the same side of the electrodialysis treatment unit 100. At this moment, the pressure of same diaphragm pure water passageway one side and waste water passageway one side all is the maximum pressure of respective passageway, so the baffle need use firmer material preparation here, along with the rivers direction extends, and is more and more low to the resistance to compression requirement of diaphragm and baffle, is favorable to reducing the cost.
In this embodiment, the electrodialysis concentrated water channel outlet 140 is provided with a first water pressure detection device 400 and a water pressure adjustment device 600, and the first water pressure detection device 400 is electrically connected with the water pressure adjustment device 600; the water pressure adjusting means 600 is provided at the rear side of the first water pressure detecting means 400 with respect to the flow direction of the water flow. The electrodialysis pure water passage outlet 120 is provided with a second water pressure detection device 500. The water pressure adjusting means 600 is a flow rate adjusting valve or a waste water stopper. When the water pressure detected by the first water pressure detection device 400 is lower than that detected by the second water pressure detection device 500, the first water pressure detection device 400 controls the flow regulating valve to be closed, so that the concentrated water channel is suppressed, more salt ions can be taken away by the water flow entering the concentrated water channel, the discharge capacity of the concentrated water is reduced, and the pure wastewater ratio of the electrodialysis treatment unit 100 is improved; when the first water pressure detection device 400 detects that the water pressure exceeds the water pressure detected by the second water pressure detection device 500, the first water pressure detection device 400 controls the flow regulating valve to be opened, so that the concentrated water channel is reduced, and the phenomenon that the concentrated water permeates into the pure water channel to pollute the pure water due to the overlarge pressure of the concentrated water channel is prevented.
This drainage clean system of high-purity waste water ratio, the dense water passageway import 130 pressure of electrodialysis processing unit 100 comes from pure water passageway export 120 pressure, and is equal with pure water passageway export 120 pressure, and pure water passageway export 120 water pressure is whole pure water passageway water pressure minimum, then the pressure of whole dense water passageway all is less than the pressure of pure water passageway, and dense water can not permeate to pure water passageway, has avoided the pure water to receive the pollution of dense water, has guaranteed the desalination of electrodialyzer. Meanwhile, pure water enters the concentrated water channel, and the concentrated water channel is cleaned, so that the concentrated water channel is not easy to scale.
Example 2.
A high purity wastewater rate water filtration purification system, as shown in fig. 2, with the same other features as in example 1, except that: the flow dividing device 200 is a water flow divider, a water inlet of the water flow divider is communicated with a pure water outlet of the electrodialysis treatment unit 100, a first water outlet end of the water flow divider is communicated with a raw water inlet of the pure water retreatment unit 300, and a second water outlet end of the water flow divider is communicated with a concentrated water inlet of the electrodialysis treatment unit 100. The present embodiment takes as an example that the inlets of the pure water passage and the concentrated water passage are provided on opposite sides of the electrodialysis treatment unit 100. It should be noted that the number of the diversion ports of the water flow diverter can be three or more, and the redundant diversion ports can be connected with other water purifying devices, such as reverse osmosis water purifying devices.
In this embodiment, the pure water re-treatment unit 300 is configured as one or more of an activated carbon filter element, a PP cotton filter element, a ceramic filter element, an ultrafiltration membrane filter element, or a nanofiltration membrane filter element. The raw water can also contain other impurities after passing through the electrodialysis treatment unit 100, and is further treated by the pure water regeneration unit, so that the pure water discharged by the electrodialysis treatment unit 100 has better taste and is more suitable for drinking under the condition of ensuring high desalination rate and pure wastewater ratio.
This drainage clean system of high-purity waste water ratio, dense water can not permeate to the pure water passageway, has avoided the pure water to receive the pollution of dense water, has guaranteed the desalination of electrodialyzer. Meanwhile, the raw water is further purified by the pure water regeneration unit after passing through the electrodialysis treatment unit 100, so that the produced water is purer in quality and better in taste and is more suitable for drinking.
Example 3.
The other characteristics of the water filtering and purifying system with high purity waste water ratio are the same as those of the embodiment 1, except that: the pure water reprocessing unit 300 is set to be multi-stage, and each stage of pure water reprocessing unit is an activated carbon filter element, a PP cotton filter element, a ceramic filter element, an ultrafiltration membrane filter element or a nanofiltration membrane filter element. The multi-stage pure water treatment unit can ensure that the pure water generated by the water filtering and purifying system electrodialysis treatment unit 100 can not be accumulated, the water purifying speed and the water purifying quantity of the water filtering and purifying system with the high-purity wastewater ratio are improved, the water quality of the produced water is purer, the taste is better, and the water filtering and purifying system is more suitable for drinking.
It should be finally noted that the above embodiments are only intended to illustrate the technical solutions of the present invention and not to limit the scope of the present invention, and although the present invention has been described in detail with reference to the preferred embodiments, those skilled in the art should understand that the technical solutions of the present invention can be modified or replaced with equivalents without departing from the spirit and scope of the technical solutions of the present invention.
Claims (10)
1. The utility model provides a drainage clean system of high-purity waste water ratio which characterized in that: the device is provided with an electrodialysis treatment unit, a flow dividing device and a pure water retreatment unit, pure water obtained after raw water enters a channel of the electrodialysis treatment unit enters the flow dividing device to be divided, part of the pure water A is discharged into the pure water retreatment unit to be used as raw water of the pure water retreatment unit, the raw water is purified by the pure water retreatment unit and then is discharged as system produced water, the rest part of the pure water B enters a concentrated water channel of the electrodialysis treatment unit, and concentrated water discharged by the electrodialysis treatment unit is discharged as system concentrated water.
2. The high purity wastewater rate water filtration purification system of claim 1, wherein: the flow dividing device is a three-way valve, the water inlet end of the three-way valve is communicated with the pure water outlet of the electrodialysis treatment unit, the first water outlet end of the three-way valve is communicated with the water inlet of the pure water retreatment unit, and the second water outlet end of the three-way valve is communicated with the concentrated water inlet of the electrodialysis treatment unit.
3. The high purity wastewater rate water filtration purification system of claim 1, wherein: the flow dividing device is a water flow divider, a water inlet of the water flow divider is communicated with a pure water outlet of the electrodialysis treatment unit, a first water outlet end of the water flow divider is communicated with a water inlet of the pure water retreatment unit, and a second water outlet end of the water flow divider is communicated with a concentrated water inlet of the electrodialysis treatment unit.
4. The high purity wastewater purification system for filtration water purification according to any one of claims 1 to 3, wherein: the pure water retreatment unit is set to be one or more of an activated carbon filter core, a PP cotton filter core, a ceramic filter core, an ultrafiltration membrane filter core or a nanofiltration membrane filter core.
5. The high purity wastewater rate water filtration purification system of claim 4, wherein: the pure water reprocessing unit sets up to multistage, and every grade of pure water reprocessing unit is active carbon filter core, the cotton filter core of PP, ceramic filter core, ultrafiltration membrane filter core or receives the filter core of filter membrane.
6. The high purity wastewater purification system for filtration water purification according to any one of claims 1 to 3, wherein: the pure water passage inlet and the concentrated water passage inlet are on the same side or opposite sides of the electrodialysis treatment unit.
7. The high purity wastewater purification system for filtration water purification according to any one of claims 1 to 3, wherein: the outlet of the electrodialysis concentrated water channel is provided with a first water pressure detection device and a water pressure adjusting device, and the first water pressure detection device is electrically connected with the water pressure adjusting device;
the water pressure adjusting device is arranged on the rear side of the first water pressure detecting device relative to the flowing direction of water flow.
8. The high purity wastewater rate water filtration purification system of claim 7, wherein: and a second water pressure detection device is arranged at the outlet of the electrodialysis pure water channel.
9. The high purity wastewater rate water filtration purification system of claim 8, wherein: the water pressure regulating device is a flow regulating valve or a waste water plug.
10. A water purifier is characterized in that: a water filtration purification system having a high purity wastewater ratio as claimed in any one of claims 1 to 9.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201922477752.8U CN212151924U (en) | 2019-12-31 | 2019-12-31 | Water filtration and purification system with high-purity wastewater ratio and water purifier |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201922477752.8U CN212151924U (en) | 2019-12-31 | 2019-12-31 | Water filtration and purification system with high-purity wastewater ratio and water purifier |
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| CN212151924U true CN212151924U (en) | 2020-12-15 |
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| CN201922477752.8U Active CN212151924U (en) | 2019-12-31 | 2019-12-31 | Water filtration and purification system with high-purity wastewater ratio and water purifier |
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Effective date of registration: 20211029 Address after: 528308 No.2, North Xinxi 4th Road, Xiashi village, Lunjiao street, Shunde District, Foshan City, Guangdong Province Patentee after: Guangdong Chestnut Technology Co.,Ltd. Address before: 528300 Nepheline Village Committee, Lunjiao Sub-district Office, Shunde District, Foshan City, Guangdong Province Patentee before: FOSHAN VIOMI ELECTRICAL TECHNOLOGY Co.,Ltd. Patentee before: Chen Xiaoping |
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