CN222498782U - Water system and water purifier - Google Patents
Water system and water purifier Download PDFInfo
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- CN222498782U CN222498782U CN202420425822.3U CN202420425822U CN222498782U CN 222498782 U CN222498782 U CN 222498782U CN 202420425822 U CN202420425822 U CN 202420425822U CN 222498782 U CN222498782 U CN 222498782U
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- membrane filter
- filter element
- pipeline
- ultrafiltration membrane
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- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 title claims abstract description 216
- 239000012528 membrane Substances 0.000 claims abstract description 151
- 238000000108 ultra-filtration Methods 0.000 claims abstract description 83
- 239000007788 liquid Substances 0.000 claims abstract description 81
- 238000001223 reverse osmosis Methods 0.000 claims abstract description 58
- 238000002156 mixing Methods 0.000 claims abstract description 38
- 239000010865 sewage Substances 0.000 claims abstract description 25
- 229910052799 carbon Inorganic materials 0.000 claims description 18
- 239000012510 hollow fiber Substances 0.000 claims description 8
- 239000012459 cleaning agent Substances 0.000 claims description 5
- 239000007787 solid Substances 0.000 claims description 5
- 238000000746 purification Methods 0.000 claims description 3
- 238000004140 cleaning Methods 0.000 abstract description 21
- 230000000694 effects Effects 0.000 abstract description 21
- 238000011010 flushing procedure Methods 0.000 abstract description 19
- 239000008213 purified water Substances 0.000 abstract description 14
- 238000001914 filtration Methods 0.000 abstract description 11
- 239000002351 wastewater Substances 0.000 description 10
- 238000005406 washing Methods 0.000 description 7
- 238000010586 diagram Methods 0.000 description 6
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 description 5
- 239000012535 impurity Substances 0.000 description 4
- 230000002035 prolonged effect Effects 0.000 description 4
- 239000000126 substance Substances 0.000 description 3
- 238000011001 backwashing Methods 0.000 description 2
- 238000007796 conventional method Methods 0.000 description 2
- 238000004519 manufacturing process Methods 0.000 description 2
- 239000002699 waste material Substances 0.000 description 2
- 241000894006 Bacteria Species 0.000 description 1
- 239000004695 Polyether sulfone Substances 0.000 description 1
- 239000004743 Polypropylene Substances 0.000 description 1
- 241000700605 Viruses Species 0.000 description 1
- 239000003610 charcoal Substances 0.000 description 1
- 238000004891 communication Methods 0.000 description 1
- 230000005574 cross-species transmission Effects 0.000 description 1
- 244000005700 microbiome Species 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000001728 nano-filtration Methods 0.000 description 1
- 229920006393 polyether sulfone Polymers 0.000 description 1
- -1 polypropylene Polymers 0.000 description 1
- 229920001155 polypropylene Polymers 0.000 description 1
- 238000011897 real-time detection Methods 0.000 description 1
- 229920006395 saturated elastomer Polymers 0.000 description 1
- 238000003860 storage Methods 0.000 description 1
- 239000008400 supply water Substances 0.000 description 1
Landscapes
- Separation Using Semi-Permeable Membranes (AREA)
Abstract
本实用新型涉及一种水路系统及净水器，水路系统包括依次通过管路连通的原水端口、超滤膜滤芯、增压泵、反渗透膜滤芯及净水端口，水路系统还包括第一电动阀、第一电磁阀及第二电磁阀，水路系统还包括第一污水端口、第二电动阀及气液混合泵，第一污水端口与超滤膜滤芯通过管路连通；第二电动阀设置于超滤膜滤芯和第一污水端口之间的管路上；气液混合泵设有气体进口、液体进口及气液出口，气液出口与超滤膜滤芯和增压泵之间的管路连通。水路系统能够对超滤膜滤芯实现正冲洗和反冲洗，并且在反冲洗时采用气泡水，以提高对超滤膜滤芯的清洗效果，使得清洗彻底，保证超滤膜滤芯的过滤效果，延长超滤膜滤芯以及水路系统整体的使用寿命。
The utility model relates to a water system and a water purifier, wherein the water system comprises a raw water port, an ultrafiltration membrane filter element, a booster pump, a reverse osmosis membrane filter element and a purified water port which are sequentially connected through pipelines, the water system further comprises a first electric valve, a first solenoid valve and a second solenoid valve, the water system further comprises a first sewage port, a second electric valve and a gas-liquid mixing pump, the first sewage port is connected to the ultrafiltration membrane filter element through a pipeline; the second electric valve is arranged on the pipeline between the ultrafiltration membrane filter element and the first sewage port; the gas-liquid mixing pump is provided with a gas inlet, a liquid inlet and a gas-liquid outlet, and the gas-liquid outlet is connected to the pipeline between the ultrafiltration membrane filter element and the booster pump. The water system can realize positive flushing and back flushing of the ultrafiltration membrane filter element, and bubble water is used during back flushing to improve the cleaning effect of the ultrafiltration membrane filter element, so that the cleaning is thorough, the filtering effect of the ultrafiltration membrane filter element is ensured, and the service life of the ultrafiltration membrane filter element and the water system as a whole is extended.
Description
Technical Field
The utility model relates to the technical field of water purifying equipment, in particular to a waterway system and a water purifier.
Background
The water is filtered by the filter element in the waterway system of the water purifier so as to effectively remove impurities and harmful substances in the water. The filter element becomes dirty after a period of use, affecting the filtering effect, and therefore needs to be replaced or cleaned frequently.
However, frequent replacement of the filter element causes certain waste and has high cost, but the existing filter element cleaning mode has poor cleaning effect and cannot thoroughly clean the filter element.
Disclosure of utility model
Accordingly, it is necessary to provide a water path system and a water purifier, which can improve the cleaning effect of the membrane filter element and prolong the service life.
The utility model firstly provides a waterway system which comprises a raw water port, an ultrafiltration membrane filter element, a booster pump, a reverse osmosis membrane filter element and a water purifying port which are communicated through pipelines in sequence, and further comprises a first electric valve arranged on a pipeline between the raw water port and the ultrafiltration membrane filter element, a first electromagnetic valve arranged on a pipeline between the booster pump and the reverse osmosis membrane filter element, a second electromagnetic valve arranged on a pipeline between the reverse osmosis membrane filter element and the water purifying port, a first sewage port communicated with the ultrafiltration membrane filter element through a pipeline, a second electric valve arranged on a pipeline between the ultrafiltration membrane filter element and the first sewage port, and a gas-liquid mixing pump provided with a gas inlet, a liquid inlet and a gas-liquid outlet, wherein the gas-liquid outlet is communicated with a pipeline between the ultrafiltration membrane filter element and the booster pump.
In the waterway system, when the ultrafiltration membrane filter element is washed, firstly, the gas-liquid mixing pump and the second electric valve are controlled to be opened, gas enters the gas-liquid mixing pump through the gas inlet, water enters the gas-liquid mixing pump through the liquid inlet and is mixed by the gas-liquid mixing pump to form bubble water, the bubble water flows to the ultrafiltration membrane filter element through the gas-liquid outlet so as to backwash the ultrafiltration membrane filter element by adopting the bubble water, waste water formed after the ultrafiltration membrane filter element is washed is discharged through the first sewage port, then, the first electric valve and the second electric valve are controlled to be opened, water enters the waterway system through the raw water port and flows to the ultrafiltration membrane filter element so as to carry out forward washing on the ultrafiltration membrane filter element, and waste water formed after the ultrafiltration membrane filter element is washed is discharged through the first sewage port, so that forward washing and backwash can be realized on the ultrafiltration membrane filter element, and the cleaning effect of the ultrafiltration membrane filter element is improved during backwash, the filtering effect of the ultrafiltration membrane filter element is ensured, and the service life of the ultrafiltration membrane filter element and the whole waterway system is prolonged.
In one embodiment, the waterway system further comprises a water tank communicated with the liquid inlet through a pipeline and a third electromagnetic valve arranged on the pipeline between the water tank and the gas-liquid mixing pump.
So set up, the water tank is used for the water storage to for the washing water supply of milipore filter core.
In one embodiment, a solid cleaning agent which can be dissolved in water is arranged in the water tank.
By adopting the arrangement, the cleaning liquid is adopted to back flush the ultrafiltration membrane filter core, so that the back flush effect of the ultrafiltration membrane filter core can be improved, and the cleaning is more thorough.
In one embodiment, a level valve is provided within the tank, and the third solenoid valve is configured to be opened or closed in response to a water level within the tank detected by the level valve.
So set up, the water level in the liquid level valve real-time detection water tank guarantees that there is sufficient water to wash the milipore filter core, also can avoid the water in the water tank to spill over.
In one embodiment, the water tank is in communication with a pipeline between the reverse osmosis membrane filter element and the second solenoid valve, and the waterway system further comprises a fourth solenoid valve disposed on the pipeline between the reverse osmosis membrane filter element and the water tank.
The water for back flushing the ultrafiltration membrane filter core is filtered water, impurities in the water and the like are prevented from remaining on the ultrafiltration membrane filter core, and the cleaning effect of the ultrafiltration membrane filter core is improved.
In one embodiment, the waterway system further comprises a second sewage port communicated with the reverse osmosis membrane filter element through a pipeline and a fifth electromagnetic valve arranged on the pipeline between the reverse osmosis membrane filter element and the second sewage port.
So set up, adopt the bubble water to realize washing to the reverse osmosis membrane filter core to improve the cleaning performance to the reverse osmosis membrane filter core, make wash thoroughly, thereby guarantee the filter effect of reverse osmosis membrane filter core, extension reverse osmosis membrane filter core and the holistic life of waterway system.
In one embodiment, the waterway system further includes a pressure switch disposed on a pipeline between the reverse osmosis membrane cartridge and the second solenoid valve, and the first motor valve, the booster pump, and the first solenoid valve are configured to be opened or closed in response to a water pressure detected by the pressure switch.
So set up, pressure switch can avoid pipeline inside water pressure too high and cause danger, guarantees waterway system safety in utilization.
In one embodiment, the waterway system further comprises a post-carbon filter element disposed between the reverse osmosis membrane filter element and the water purification port.
So set up, the rearmounted charcoal filter core can play further filterable effect to the water after ultrafiltration membrane filter core and reverse osmosis membrane filter core filtration to promote waterway system holistic filter effect, guarantee the quality of water safety of water purification.
In one embodiment, the ultrafiltration membrane cartridge is configured as a hollow fiber membrane cartridge.
The hollow fiber membrane filter core has strong filtering capability, and the structure of the hollow fiber membrane filter core cannot be damaged when the hollow fiber membrane filter core is positively washed and backwashed, so that the service life of the ultrafiltration membrane filter core can be prolonged.
The utility model also provides a water purifier which comprises the waterway system.
Drawings
In order to more clearly illustrate the technical solutions of the embodiments or the conventional techniques of the present application, the drawings required for the descriptions of the embodiments or the conventional techniques will be briefly described below, and it is apparent that the drawings in the following descriptions are only some embodiments of the present application, and other drawings may be obtained according to the drawings without inventive effort for those skilled in the art.
FIG. 1 is a schematic diagram of a waterway system according to an embodiment of the present utility model;
FIG. 2 is a schematic flow diagram of the waterway system of FIG. 1 during water production;
FIG. 3 is a schematic flow diagram of the waterway system of FIG. 1 when water is added to the water tank;
FIG. 4 is a schematic flow diagram of the waterway system of FIG. 1 during back flushing of the ultrafiltration membrane cartridge;
FIG. 5 is a schematic flow diagram of the waterway system of FIG. 1 during a forward flushing of an ultrafiltration membrane cartridge;
Fig. 6 is a schematic flow diagram of the waterway system of fig. 1 when the reverse osmosis membrane filter element is flushed.
The water purifying device comprises the following components of 11, a raw water port, 12, a water purifying port, 13, a first sewage port, 14, a second sewage port, 15, an air inlet port, 2, an ultrafiltration membrane filter core, 3, a booster pump, 4, a reverse osmosis membrane filter core, 5, a gas-liquid mixing pump, 6, a water tank, 61, a solid cleaning agent, 62, a liquid level valve, 7, a pressure switch, 8, a post-carbon filter core, 91, a first check valve, 92, a second check valve, 93, a third check valve, Q1, a first electric valve, Q2, a second electric valve, M1, a first electromagnetic valve, M2, a second electromagnetic valve, M3, a third electromagnetic valve, M4, a fourth electromagnetic valve, M5 and a fifth electromagnetic valve.
Detailed Description
In order that the above objects, features and advantages of the application will be readily understood, a more particular description of the application will be rendered by reference to the appended drawings. In the following description, numerous specific details are set forth in order to provide a thorough understanding of the present application. The present application may be embodied in many other forms than described herein and similarly modified by those skilled in the art without departing from the spirit of the application, whereby the application is not limited to the specific embodiments disclosed below.
It will be understood that when an element is referred to as being "mounted" or "disposed" on another element, it can be directly on the other element or intervening elements may also be present. When a component is considered to be "connected" to another component, it can be directly connected to the other component or intervening components may also be present. The terms "vertical", "horizontal", "upper", "lower", "left", "right" and the like are used in the description of the present application for the purpose of illustration only and do not represent the only embodiment.
Furthermore, the terms "first," "second," and the like, are used for descriptive purposes only and are not to be construed as indicating or implying a relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defining "a first" or "a second" may explicitly or implicitly include at least one such feature. In the description of the present application, the meaning of "plurality" means at least two, for example, two, three, etc., unless specifically defined otherwise.
In the present application, unless expressly stated or limited otherwise, a first feature "up" or "down" on a second feature may be that the first feature is in direct contact with the second feature, or that the first feature and the second feature are in indirect contact through intermedial media. Moreover, a first feature being "above," "over" and "on" a second feature may be a first feature being directly above or obliquely above the second feature, or simply indicating that the first feature is higher in level than the second feature. The first feature being "under", "below" and "beneath" the second feature may be the first feature being directly under or obliquely under the second feature, or simply indicating that the first feature is less level than the second feature.
Unless defined otherwise, all technical and scientific terms used in the specification of the present application have the same meaning as commonly understood by one of ordinary skill in the art to which this application belongs. The terminology used in the description of the application herein is for the purpose of describing particular embodiments only and is not intended to be limiting of the application. The term "and/or" as used in the description of the present application includes any and all combinations of one or more of the associated listed items.
In the waterway system of the water purifier, a polypropylene melt-blown filter element, active carbon and the like are generally adopted as filter elements to filter water so as to effectively remove impurities and harmful substances in the water. The filter element becomes dirty after a period of use, affecting the filtering effect, and therefore needs to be replaced or cleaned frequently. However, frequent replacement of the filter element causes certain waste and has high cost, but the existing filter element cleaning mode has poor cleaning effect and cannot thoroughly clean the filter element.
In order to solve the above problems, as shown in fig. 1 to 6, the present utility model firstly provides a waterway system to improve the cleaning effect on the filter element and prolong the service life.
As shown in fig. 1, specifically, the waterway system comprises a raw water port 11, an ultrafiltration membrane filter core 2, a booster pump 3, a reverse osmosis membrane filter core 4 and a purified water port 12 which are sequentially communicated through pipelines, the waterway system further comprises a first electric valve Q1 arranged on a pipeline between the raw water port 11 and the ultrafiltration membrane filter core 2, a first electromagnetic valve M1 arranged on a pipeline between the booster pump 3 and the reverse osmosis membrane filter core 4, a second electromagnetic valve M2 arranged on a pipeline between the reverse osmosis membrane filter core 4 and the purified water port 12, the waterway system further comprises a first sewage port 13, a second electric valve Q2 and a gas-liquid mixing pump 5, wherein the first sewage port 13 is communicated with the ultrafiltration membrane filter core 2 through a pipeline, the second electric valve Q2 is arranged on a pipeline between the ultrafiltration membrane filter core 2 and the first sewage port 13, and the gas-liquid mixing pump 5 is provided with a gas inlet, a liquid inlet and a gas-liquid outlet, and the gas-liquid outlet is communicated with a pipeline between the ultrafiltration membrane filter core 2 and the booster pump 3.
In the waterway system provided by the embodiment of the utility model, as shown in fig. 2, when the waterway system is used for producing water, the first electric valve Q1, the booster pump 3, the first electromagnetic valve M1 and the second electromagnetic valve M2 are controlled to be opened, raw water enters the waterway system through the raw water port 11 and sequentially passes through the ultrafiltration membrane filter element 2, the booster pump 3 and the reverse osmosis membrane filter element 4, the raw water is filtered through the ultrafiltration membrane filter element 2 and the reverse osmosis membrane filter element 4 to form purified water, and the purified water flows out through the purified water port 12.
When the ultrafiltration membrane filter element 2 is washed, as shown in fig. 4, the gas-liquid mixing pump 5 and the second electric valve Q2 are controlled to be opened, gas can enter the gas-liquid mixing pump 5 through the gas inlet, water can enter the gas-liquid mixing pump 5 through the liquid inlet and is mixed by the gas-liquid mixing pump 5 to form bubble water, the bubble water flows to the ultrafiltration membrane filter element 2 through the gas-liquid outlet so as to back wash the ultrafiltration membrane filter element 2 by adopting the bubble water, waste water formed after the ultrafiltration membrane filter element 2 is washed is discharged through the first sewage port 13, and after the preset washing time is reached, the gas-liquid mixing pump 5 and the second electric valve Q2 are controlled to be closed, and the back washing is completed. As shown in fig. 5, the first electric valve Q1 and the second electric valve Q2 are controlled to be opened, water enters the waterway system through the raw water port 11 and flows to the ultrafiltration membrane filter element 2 to positively flush the ultrafiltration membrane filter element 2, waste water formed after flushing the ultrafiltration membrane filter element 2 is discharged through the first sewage port 13, and after a preset flushing time is reached, the first electric valve Q1 and the second electric valve Q2 are controlled to be closed, and the positive flushing is completed. Therefore, forward flushing and back flushing of the ultrafiltration membrane filter core 2 can be realized, and bubble water is adopted during back flushing, so that the cleaning effect of the ultrafiltration membrane filter core 2 is improved, the cleaning is thorough, the filtering effect of the ultrafiltration membrane filter core 2 is ensured, and the overall service lives of the ultrafiltration membrane filter core 2 and a waterway system are prolonged.
Wherein, the ultrafiltration membrane filter core 2 is a hollow fiber membrane filter core, and is specifically made of polyethersulfone. The hollow fiber membrane filter core has hydrophilicity resistant to organic pollution, has strong filtering capability, can effectively remove harmful substances such as bacteria, viruses, microorganisms and the like in water, and can not damage the structure of the hollow fiber membrane filter core after being washed forward and backwashed, so that the service life of the ultrafiltration membrane filter core 2 can be further prolonged. The reverse osmosis membrane cartridge 4 may be provided as a nanofiltration membrane, an RO reverse osmosis membrane, or the like.
And each electromagnetic valve can control the on-off of the corresponding pipeline, and each electric valve can also control the on-off of the corresponding pipeline, and can also control the opening of the corresponding pipeline at the same time so as to control the flow rate of liquid in the pipeline.
As shown in fig. 1 to 2, the waterway system further includes a post-carbon filter 8 disposed between the reverse osmosis membrane filter 4 and the water purifying port 12. When the waterway system produces water, raw water enters the waterway system through a raw water port 11 and sequentially passes through the ultrafiltration membrane filter element 2, the booster pump 3, the reverse osmosis membrane filter element 4 and the post-carbon filter element 8, and the raw water is filtered through the ultrafiltration membrane filter element 2, the reverse osmosis membrane filter element 4 and the post-carbon filter element 8 to form purified water, and the purified water flows out through a purified water port 12. The post-carbon filter element 8 can play a role in further filtering the water filtered by the ultrafiltration membrane filter element 2 and the reverse osmosis membrane filter element 4, so that the overall filtering effect of the waterway system is improved, and the water quality safety of purified water is ensured. Wherein, the post-carbon filter element 8 can be arranged as a granular active carbon filter element or a carbon rod filter element, etc.
As shown in fig. 1 to 2, the waterway system further includes a pressure switch 7 provided on a pipeline between the reverse osmosis membrane cartridge 4 and the second solenoid valve M2, and the first motor-operated valve Q1, the booster pump 3, and the first solenoid valve M1 are configured to be opened or closed in response to the water pressure detected by the pressure switch 7. When the post-carbon filter element 8 is arranged, the pressure switch 7 is arranged on a pipeline between the post-carbon filter element 8 and the second electromagnetic valve M2. The pressure switch 7 is used for detecting the water pressure on the corresponding pipeline. When the pressure switch 7 detects a preset high-pressure signal, the first electric valve Q1, the booster pump 3 and the first electromagnetic valve M1 are controlled to be closed, and meanwhile, the second electromagnetic valve M2 is controlled to be closed, so that the waterway system stops producing water. The danger caused by overhigh water pressure in the pipeline is avoided, and the use safety of the waterway system is ensured.
Or the waterway system can be controlled to stop water production after the waterway system continuously works for a preset period of time. The preset time length can be 5 hours, 6 hours, 7 hours and the like, so that the waterway system is prevented from being in a working state for a long time.
As shown in fig. 1, the waterway system further comprises a first one-way valve 91 arranged on the pipeline between the post-carbon filter element 8 and the pressure switch 7, the first one-way valve 91 enables water in the pipeline to flow from the post-carbon filter element 8 to the pressure switch 7 only, water backflow in the pipeline caused by overlarge water pressure at the position of the pressure switch 7 is avoided, and normal operation of the waterway system is ensured.
As shown in fig. 1 and 4, in one embodiment, the waterway system further includes a water tank 6 connected to the liquid inlet through a pipeline, and a third electromagnetic valve M3 disposed on the pipeline between the water tank 6 and the gas-liquid mixing pump 5. When the ultrafiltration membrane filter core 2 is backwashed, the third electromagnetic valve M3, the gas-liquid mixing pump 5 and the second electric valve Q2 are controlled to be opened, gas can enter the gas-liquid mixing pump 5 through the gas inlet, water in the water tank 6 can enter the gas-liquid mixing pump 5 through the liquid inlet and form bubble water after being mixed by the gas-liquid mixing pump 5, the bubble water flows to the ultrafiltration membrane filter core 2 through the gas-liquid outlet so as to backwash the ultrafiltration membrane filter core 2, and waste water formed after the ultrafiltration membrane filter core 2 is flushed is discharged through the first sewage port 13. The water tank 6 is used for storing water and supplying water for flushing the ultrafiltration membrane filter element 2.
As shown in fig. 1, a solid cleaning agent 61 which is soluble in water is provided in the water tank 6. The solid cleaning agent 61 slowly releases when meeting water in the water tank 6 until the liquid in the water tank 6 is saturated to form cleaning liquid in the water tank 6. The ultrafiltration membrane filter core 2 is backwashed by the bubble water generated by mixing the cleaning liquid and the gas, so that the backwashing effect of the ultrafiltration membrane filter core 2 can be further improved, and the cleaning is more thorough.
As shown in fig. 1, a liquid level valve 62 is provided in the water tank 6, and a third solenoid valve M3 is configured to be opened or closed in response to a water level in the water tank 6 detected by the liquid level valve 62. The liquid level valve 62 detects the water level in the water tank 6 in real time, when the liquid level valve 62 detects that the water level in the water tank 6 reaches a preset low water level, water needs to be added into the water tank 6 first, and then the ultrafiltration membrane filter core 2 is washed, so that enough water is guaranteed to wash the ultrafiltration membrane filter core 2, and when the liquid level valve 62 detects that the water level in the water tank 6 reaches a preset high water level, water addition into the water tank 6 is stopped, and water in the water tank 6 is prevented from overflowing. Thereby ensuring the normal use of the waterway system. Wherein the liquid level valve 62 may be provided as a liquid level float valve or the like.
As shown in fig. 1 and 3, the water tank 6 is communicated with the pipeline between the reverse osmosis membrane filter element 4 and the second electromagnetic valve M2, and the waterway system further comprises a fourth electromagnetic valve M4 arranged on the pipeline between the reverse osmosis membrane filter element 4 and the water tank 6. When the rear carbon filter element 8 is arranged, the water tank 6 is communicated with a pipeline between the reverse osmosis membrane filter element 4 and the rear carbon filter element 8. When water needs to be added into the water tank 6, the first electric valve Q1, the booster pump 3, the first electromagnetic valve M1 and the fourth electromagnetic valve M4 are controlled to be opened, raw water enters the waterway system through the raw water port 11 and sequentially passes through the ultrafiltration membrane filter element 2, the booster pump 3 and the reverse osmosis membrane filter element 4, purified water is formed after the raw water is filtered through the ultrafiltration membrane filter element 2 and the reverse osmosis membrane filter element 4, and the purified water flows into the water tank 6. The water for back flushing the ultrafiltration membrane filter core 2 is the purified water after filtering, and impurities and the like in the water are prevented from remaining on the ultrafiltration membrane filter core 2, so that the cleaning effect of the ultrafiltration membrane filter core 2 can be further improved, and the ultrafiltration membrane filter core 2 is thoroughly cleaned.
Of course, in other embodiments, the water tank 6 may be connected to an external water source, and when the level valve 62 detects that the water level in the water tank 6 reaches a preset low level, the external water source is controlled to supply water into the water tank 6, and when the level valve 62 detects that the water level in the water tank 6 reaches a preset high level, the external water source is controlled to stop supplying water into the water tank 6. Or the liquid inlet of the gas-liquid mixing pump 5 can be directly communicated with an external water source, and when the gas-liquid mixing pump 5 works, water of the external water source enters the gas-liquid mixing pump 5 through the liquid inlet.
As shown in fig. 1 and 4, the waterway system further includes an intake port 15 communicating with the gas inlet of the gas-liquid mixing pump 5, and a second check valve 92 provided on a line between the intake port 15 and the gas-liquid mixing pump 5. When the gas-liquid mixing pump 5 works, external gas can enter the waterway system through the air inlet 15 and enter the gas-liquid mixing pump 5 through the gas inlet. The second check valve 92 enables the gas in the pipeline to flow from the air inlet 15 to the gas-liquid mixing pump 5 only, so that the gas or liquid in the waterway system is prevented from flowing backwards when the gas-liquid mixing pump 5 is not in operation, and the normal operation of the waterway system is ensured.
As shown in fig. 1 and 6, the waterway system further includes a second sewage port 14 connected to the reverse osmosis membrane cartridge 4 through a pipeline, and a fifth electromagnetic valve M5 disposed on the pipeline between the reverse osmosis membrane cartridge 4 and the second sewage port 14. When the reverse osmosis membrane filter element 4 is flushed, the gas-liquid mixing pump 5, the booster pump 3, the first electromagnetic valve M1 and the fifth electromagnetic valve M5 are controlled to be opened, gas can enter the gas-liquid mixing pump 5 through the gas inlet, cleaning liquid in the water tank 6 can enter the gas-liquid mixing pump 5 through the liquid inlet and is mixed by the gas-liquid mixing pump 5 to form bubble water, the bubble water flows to the booster pump 3 and the reverse osmosis membrane filter element 4 through the gas-liquid outlet so as to flush the reverse osmosis membrane filter element 4 by adopting the bubble water, waste water formed after flushing the reverse osmosis membrane filter element 4 is discharged through the second sewage port 14, and after the preset flushing time is reached, the gas-liquid mixing pump 5, the booster pump 3, the first electromagnetic valve M1 and the fifth electromagnetic valve M5 are controlled to be closed, and flushing is completed. Thereby can adopt bubble water to realize washing to reverse osmosis membrane filter core 4 to improve the cleaning performance to reverse osmosis membrane filter core 4, make the washing thoroughly, thereby guarantee the filter effect of reverse osmosis membrane filter core 4, prolong the holistic life of reverse osmosis membrane filter core 4 and waterway system. Wherein the flushing times of the reverse osmosis membrane filter element 4 and the ultrafiltration membrane filter element 2 are kept consistent.
As shown in fig. 1 and 6, the waterway system further includes a third check valve 93 disposed on a pipeline between the fifth solenoid valve M5 and the second sewage port 14. The third one-way valve 93 makes the wastewater in the pipeline flow from the fifth electromagnetic valve M5 to the second wastewater port 14 only, so that the wastewater in the second wastewater port 14 is prevented from flowing back to the reverse osmosis membrane filter element 4, and the normal operation of the waterway system is ensured.
Further, before the waterway system is operated for the first time, the ultrafiltration membrane filter core 2, the reverse osmosis membrane filter core 4 and the internal pipelines of the waterway system are required to be flushed. The first electric valve Q1, the booster pump 3, the first electromagnetic valve M1 and the second electromagnetic valve M2 are controlled to be opened, water enters the waterway system through the raw water port 11 and flows out through the water purifying port 12 after sequentially passing through the ultrafiltration membrane filter element 2, the booster pump 3, the reverse osmosis membrane filter element 4 and the post-carbon filter element 8. After the preset flushing time, the second electromagnetic valve M2 is controlled to be closed, the fourth electromagnetic valve M4 is opened, water enters the waterway system through the raw water port 11 and sequentially enters the water tank 6 after passing through the ultrafiltration membrane filter element 2, the booster pump 3 and the reverse osmosis membrane filter element 4, when the liquid level valve 62 detects that the water level in the water tank 6 reaches the preset high water level, the fourth electromagnetic valve M4 is controlled to be closed, and when the pressure switch 7 detects a preset high-pressure signal, the first electric valve Q1, the booster pump 3 and the first electromagnetic valve M1 are controlled to be closed, and the waterway system stops working. Thereby ensuring that the water tank 6 is full of purified water before the waterway system operates for the first time.
The embodiment of the utility model also provides a water purifier which comprises the waterway system.
The technical features of the above-described embodiments may be arbitrarily combined, and all possible combinations of the technical features in the above-described embodiments are not described for brevity of description, however, as long as there is no contradiction between the combinations of the technical features, they should be considered as the scope of the description.
The above examples illustrate only a few embodiments of the application, which are described in detail and are not to be construed as limiting the scope of the claims. It should be noted that it will be apparent to those skilled in the art that several variations and modifications can be made without departing from the spirit of the application, which are all within the scope of the application. Accordingly, the scope of the application should be determined from the following claims.
Claims (10)
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