CN108569790B - Water purifying equipment - Google Patents
Water purifying equipment Download PDFInfo
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- CN108569790B CN108569790B CN201710149448.3A CN201710149448A CN108569790B CN 108569790 B CN108569790 B CN 108569790B CN 201710149448 A CN201710149448 A CN 201710149448A CN 108569790 B CN108569790 B CN 108569790B
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- water
- waste water
- water inlet
- pipeline
- filter element
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- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 title claims abstract description 248
- 239000002351 wastewater Substances 0.000 claims abstract description 155
- 238000001914 filtration Methods 0.000 claims abstract description 57
- 239000008213 purified water Substances 0.000 claims abstract description 20
- 239000012528 membrane Substances 0.000 claims description 74
- 238000000746 purification Methods 0.000 claims description 9
- 238000001223 reverse osmosis Methods 0.000 claims description 6
- 239000002131 composite material Substances 0.000 claims description 3
- 238000010992 reflux Methods 0.000 claims description 3
- 238000011010 flushing procedure Methods 0.000 abstract description 15
- 230000002829 reductive effect Effects 0.000 description 11
- 230000000694 effects Effects 0.000 description 9
- 239000002699 waste material Substances 0.000 description 5
- 238000002156 mixing Methods 0.000 description 3
- 230000001105 regulatory effect Effects 0.000 description 3
- 239000012535 impurity Substances 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 230000002035 prolonged effect Effects 0.000 description 2
- 230000008094 contradictory effect Effects 0.000 description 1
- 230000001276 controlling effect Effects 0.000 description 1
- 230000003247 decreasing effect Effects 0.000 description 1
- 238000001514 detection method Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 150000002500 ions Chemical class 0.000 description 1
- 230000000670 limiting effect Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
Classifications
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F1/00—Treatment of water, waste water, or sewage
- C02F1/44—Treatment of water, waste water, or sewage by dialysis, osmosis or reverse osmosis
- C02F1/441—Treatment of water, waste water, or sewage by dialysis, osmosis or reverse osmosis by reverse osmosis
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F1/00—Treatment of water, waste water, or sewage
- C02F1/001—Processes for the treatment of water whereby the filtration technique is of importance
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F1/00—Treatment of water, waste water, or sewage
- C02F1/008—Control or steering systems not provided for elsewhere in subclass C02F
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F2301/00—General aspects of water treatment
- C02F2301/06—Pressure conditions
- C02F2301/066—Overpressure, high pressure
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F2301/00—General aspects of water treatment
- C02F2301/08—Multistage treatments, e.g. repetition of the same process step under different conditions
Landscapes
- Life Sciences & Earth Sciences (AREA)
- Hydrology & Water Resources (AREA)
- Engineering & Computer Science (AREA)
- Environmental & Geological Engineering (AREA)
- Water Supply & Treatment (AREA)
- Chemical & Material Sciences (AREA)
- Organic Chemistry (AREA)
- Separation Using Semi-Permeable Membranes (AREA)
Abstract
The invention discloses water purifying equipment, which comprises a filtering device, wherein the filtering device is provided with a water inlet, a waste water outlet and a purified water outlet, and the water purifying equipment further comprises: the two ends of the waste water return pipeline are respectively communicated with the water inlet and the waste water outlet; and the supercharging device is communicated with the waste water return pipeline and is used for increasing the pressure of waste water flowing from the waste water return pipeline to the water inlet. The technical scheme of the invention can reduce the waste water ratio and improve the water utilization rate while ensuring the flushing strength of the filter element.
Description
Technical Field
The invention relates to the field of household appliances, in particular to water purifying equipment.
Background
The large-flux reverse osmosis water purifier in the current market is more and more accepted by consumers, and meanwhile, the large-flux reverse osmosis system also has a plurality of unsatisfactory places, so that more waste water is generated, and the water utilization rate of the water purifier is low.
Disclosure of Invention
The invention mainly aims to provide water purifying equipment, which aims to reduce the waste water ratio and improve the water utilization rate while guaranteeing the flushing strength of a filter element.
In order to achieve the above object, the present invention provides a water purifying apparatus, which includes a filtering device, the filtering device has a water inlet, a waste water outlet, a purified water outlet, the water purifying apparatus further includes: the two ends of the waste water return pipeline are respectively communicated with the water inlet and the waste water outlet; and the supercharging device is communicated with the waste water return pipeline and is used for increasing the pressure of waste water flowing from the waste water return pipeline to the water inlet.
Preferably, the filter device comprises at least two membrane cartridges, which are arranged in parallel.
Preferably, the membrane filter element is a reverse osmosis membrane filter element.
Preferably, the water purifying apparatus further comprises: the wastewater return pipeline is connected with the water inlet, and the joint of the wastewater return pipeline and the water inlet pipeline is a return joint; the supercharging device is arranged on the water inlet pipeline and is positioned between the backflow connection part and the water inlet.
Preferably, the waste water return pipe is provided with a second flow control valve.
Preferably, the water purifying apparatus further comprises: the waste water pipeline is connected with the waste water outlet, the waste water return pipeline is connected with the waste water pipeline, and the joint of the waste water return pipeline and the waste water pipeline is a shunt joint; the waste water pipeline is provided with a third flow control valve, and the third flow control valve is positioned at one side of the shunt connection part, which is far away from the waste water outlet.
Preferably, the water purifying apparatus further comprises: a temperature detector for measuring the water temperature at the water inlet; the first control device is used for adjusting the opening degrees of the second flow control valve and the third flow control valve according to the water temperature at the water inlet; wherein, the temperature of water at the water inlet is in direct proportion to the flow of the waste water return pipeline.
Preferably, the water purifying apparatus further comprises: the water quality detector is used for measuring the water quality at the water inlet; the second control device is used for adjusting the opening degrees of the second flow control valve and the third flow control valve according to the water quality at the water inlet; wherein the TDS value of the water quality at the water inlet is in direct proportion to the flow value of the waste water return pipeline.
Preferably, the water purifying device further comprises an auxiliary filtering device, wherein the auxiliary filtering device is provided with a front auxiliary filter element and a rear auxiliary filter element; the front auxiliary filter element comprises a front water inlet and a front water outlet, and the rear auxiliary filter element comprises a rear water inlet and a rear water outlet; wherein, preceding delivery port intercommunication the water inlet, the pure water delivery port intercommunication back water inlet.
Preferably, the front auxiliary filter element and the rear auxiliary filter element are the same composite filter element.
According to the technical scheme, the water inlet of the filtering device and the waste water return pipeline of the waste water outlet are respectively communicated with the two ends of the water purifying device, and the pressurizing device is used for pressurizing the return waste water in the waste water return pipeline, so that part of waste water discharged through the waste water outlet of the filtering device can flow into the filtering device again after being pressurized, the flow rate of water entering the filtering device is relatively increased, the flushing strength of the filter element is ensured, the waste water ratio is reduced, and the water utilization rate is improved.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings that are required in the embodiments or the description of the prior art will be briefly described, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and other drawings may be obtained according to the structures shown in these drawings without inventive effort for a person skilled in the art.
FIG. 1 is a schematic diagram of a water purifying apparatus according to an embodiment of the present invention;
fig. 2 is a schematic structural view of the auxiliary filtering device in fig. 1.
Reference numerals illustrate.
| Reference numerals | Name of the name | Reference numerals | Name of the name |
| 100 | Water purifying equipment | 511 | Membrane filter core water inlet |
| 10 | Water inlet pipeline | 512 | Membrane filter element water purifying outlet |
| 20 | Waste water pipeline | 513 | Waste water outlet of membrane filter element |
| 21 | Third flow control valve | 60 | Auxiliary filtering device |
| 22 | First waste water pipeline | 61 | Front auxiliary filter element |
| 23 | Second waste water pipeline | 611 | Front water inlet |
| 30 | Waste water return pipeline | 612 | Front water outlet |
| 31 | Reflow junction | 62 | Rear auxiliary filter element |
| 32 | Shunt joint | 621 | Rear water inlet |
| 33 | Second flow control valve | 622 | Rear water outlet |
| 40 | Water purifying pipeline | 70 | Supercharging device |
| 50 | Filtering device | ||
| 51 | Membrane filter element |
The achievement of the objects, functional features and advantages of the present invention will be further described with reference to the accompanying drawings, in conjunction with the embodiments.
Detailed Description
The following description of the embodiments of the present invention will be made clearly and fully with reference to the accompanying drawings, in which it is evident that the embodiments described are only some, but not all embodiments of the invention. All other embodiments, which can be made by those skilled in the art based on the embodiments of the invention without making any inventive effort, are intended to be within the scope of the invention.
It should be noted that, if directional indications (such as up, down, left, right, front, and rear … …) are included in the embodiments of the present invention, the directional indications are merely used to explain the relative positional relationship, movement conditions, etc. between the components in a specific posture (as shown in the drawings), and if the specific posture is changed, the directional indications are correspondingly changed.
In addition, if there is a description of "first", "second", etc. in the embodiments of the present invention, the description of "first", "second", etc. is for descriptive purposes only and is 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 addition, the technical solutions of the embodiments may be combined with each other, but it is necessary to base that the technical solutions can be realized by those skilled in the art, and when the technical solutions are contradictory or cannot be realized, the combination of the technical solutions should be considered to be absent and not within the scope of protection claimed in the present invention.
The invention provides water purifying equipment.
In the embodiment of the present invention, as shown in fig. 1, the water purifying apparatus 100 includes a filtering device 50, the filtering device 50 has a water inlet, a waste water outlet, and a purified water outlet, wherein the water purifying apparatus 100 further includes a waste water return line 30, and two ends of the waste water return line 30 are respectively communicated with the water inlet and the waste water outlet; the pressurizing device 70 is communicated with the waste water return pipeline 30 and is used for increasing the pressure of waste water flowing from the waste water return pipeline 30 to the water inlet.
Referring to fig. 1, in the present embodiment, the filter device 50 is composed of two membrane cartridges 51, and the two membrane cartridges 51 are regarded as a whole. Of course, the number of the membrane filter cores 51 in the filter device 50 may be one or more than three, and the filter device 50 may also be formed by combining other filter cores or by combining the membrane filter cores 51 with other filter cores, where when the number of the filter cores is more than two, the filter cores are arranged in parallel, and when the number of the filter cores is more, the water amount filtered by the water purifying apparatus 100 is correspondingly larger, and the number of the filter cores can be determined according to the water amount to be processed by the water purifying apparatus 100. It should be understood that although the filtration device 50 is shown as being composed of a membrane cartridge 51 in this embodiment, other related devices may be added. The function of the water inlet of the filter device 50 is to guide the water to be purified into the filter device 50, and the guided water to be purified is split into the two membrane cartridges 51, wherein the membrane cartridges 51 also have water inlets, but the water inlet of the membrane cartridges 51 and the water inlet of the filter device 50 are not the same concept, and the water to be purified enters the filter device 50 from the water inlet of the filter device 50, and then is split into each membrane cartridge 51 and flows into the corresponding membrane cartridge 51 through the membrane cartridge water inlet 511. The function of the waste water outlet means that the waste water after the filtration treatment of the two membrane filter elements 51 is converged together and then discharged out of the filter device 50, and the waste water outlet of the membrane filter element 51 is also provided with the waste water outlet in the same way, and the waste water outlet of the membrane filter element 51 and the waste water outlet of the filter device 50 are not the same concept, the waste water generated in the membrane filter element 51 is discharged out of the membrane filter element 51 through the waste water outlet 513 of the membrane filter element, and then the waste water generated by different membrane filter elements 51 is converged together and flows out of the filter device 50 through the waste water outlet. The function of the water purifying water outlet is to collect the water purified after the filtration treatment of the two membrane filter elements 51 together and then lead the water purified to the filter device 50, and the membrane filter element 51 is also provided with the water purifying water outlet, and the water purifying water outlet of the membrane filter element 51 and the water purifying water outlet of the filter device 50 are not the same concept, the water purified generated in the membrane filter element 51 is discharged out of the membrane filter element 51 through the membrane filter element water purifying water outlet 512 of the membrane filter element 51, and then the water purified generated by different membrane filter elements 51 are collected together and flow out of the filter device 50 through the water purifying water outlet. In the following description, to avoid confusion, the water inlet, clean water outlet and waste outlet are relative to the filter device 50, while the membrane cartridge water inlet 511, membrane cartridge clean water outlet 512 and membrane cartridge waste outlet 513 are relative to the membrane cartridge 51. The filter device 50 may be a specific device, or may be a generic term for a combination of components such as a membrane filter element 51.
When the water purifying apparatus 100 is operated, water to be purified enters the filtering device 50 through the water inlet, the water to be purified is divided into two paths in the filtering device 50, one path is that purified water formed after filtration flows out of the filtering device 50 through the purified water outlet, and the other path is that waste water formed after filtration is discharged out of the filtering device 50 through the waste water outlet. The waste water discharged from the filtering device 50 through the waste water outlet also forms two paths, one path is called backflow waste water, the waste water flows through the waste water backflow pipeline 30 again through the water inlet and then enters the filtering device, and the other path is directly discharged and abandoned, namely abandoned waste water, wherein the waste water flow discharged from the waste water outlet = abandoned waste water flow + backflow waste water flow. It should be understood that the return wastewater is filtered by mixing with the water to be purified and then passing through the filtering device 50, but it is also possible to mix the return wastewater after passing through the filtering device 50 and before passing through the membrane filter element 51. And, before the return wastewater enters the filtering device 50, the return wastewater also flows through the pressurizing device 70, and enters the filtering device 50 through the water inlet after being pressurized. The pressurizing means 70 may be a pressure pump or the like. By providing the waste water return line 30 and the pressurizing device 70, the return waste water is pressurized and then mixed with water to be purified, and then enters the filtering device 50, so that the flow rate of the water entering the filtering device 50 can be increased under the condition that the flow rate of the water to be purified is unchanged (the flow rate of the water entering the filtering device 50 at this time is the mixed flow rate, wherein the mixed flow rate=the flow rate of the return waste water+the flow rate of the water to be purified). In the description herein, the wastewater flow, the water flow to be purified, and the clean water flow are relative to the filter device 50, and the membrane cartridge wastewater flow, the membrane cartridge water flow to be purified, and the membrane cartridge clean water flow are relative to the membrane cartridge 51.
In the process of using the membrane filter element 51, impurities in water, such as ions in water, are adhered to the surface of the membrane filter element 51, so that the membrane filter element 51 can flush the adhered impurities while filtering, the flushing is performed by membrane filter element wastewater generated after the membrane filter element 51 is filtered, and the greater the flow of the membrane filter element wastewater generated by the membrane filter element 51 is, the better the flushing effect on the membrane filter element 51 is. In order to achieve good flushing results, a greater flow of membrane cartridge wastewater is required, and the net flow of membrane cartridge water filtered by the opposing membrane cartridge 51 is relatively reduced. This means that, in order to ensure the flushing effect, the flow rate of the wastewater from the filtering device 50 is relatively high and the flow rate of the purified water from the filtering device 50 is relatively low under the condition that the flow rate of the purified water is constant, so that the water utilization rate of the water purifying apparatus 100 is low. In order to improve the water utilization rate, the water flow rate of the filtering device 50 is relatively increased while the flushing effect is ensured under the condition that the water flow rate of the filtering device 50 to be purified is unchanged, and by arranging the waste water return pipeline 30, a part of waste water discharged from the waste water outlet of the filtering device 50 is mixed with the water to be purified and then is reintroduced into the filtering device 50, and the water flow rate entering the filtering device 50 is the mixed water flow rate at the moment, so that the water flow rate entering the filtering device 50 is relatively increased under the condition that the water flow rate of the water to be purified is unchanged. The flushing effect is related to the waste water flow rate of the waste water outlet of the filtering device 50, and compared with the case that the waste water return pipeline 30 is not provided, the same flushing effect is ensured (namely, the same waste water flow rate can be fluctuated within a certain range of course), the purified water flow rate is necessarily relatively large (the mixed water flow rate-waste water flow rate > the purified water flow rate-waste water flow rate), so that the water utilization efficiency is improved, the larger purified water flow rate is obtained, and the service life of the membrane filter element 51 can be prolonged due to the ensured flushing effect.
Preferably, the membrane cartridge 51 is a reverse osmosis membrane cartridge. The reverse osmosis membrane filter element has better filtering effect and moderate cost.
Further, the water purifying apparatus 100 further includes: the water inlet pipeline 10 is connected with the water inlet, the waste water return pipeline 30 is connected with the water inlet pipeline 10, and the joint of the waste water return pipeline 30 and the water inlet pipeline 10 is a return joint 31; the pressurizing device 70 is provided on the water inlet line 10 between the return connection 31 and the water inlet. By providing the pressurizing means 70 in this way, the pressurizing means 70 can increase not only the pressure of the return waste water but also the pressure of the water to be purified of the filtering means 50, that is, the pressurizing means 70 increases the pressure of the mixed water obtained by mixing the return waste water and the water to be purified. Thus, the arrangement of the pressurizing device 70 for the water to be purified and the backflow wastewater can be avoided, the cost is reduced, the structure of the water purifying device 100 is simpler, and the sufficient mixing of the backflow wastewater and the water to be purified can be ensured.
The waste water return line 30 is provided with a second flow control valve 33. The second flow control valve 33 is used for controlling the flow of the backflow waste water, so that the flow of the backflow waste water can be regulated according to the actual situation, for example, when the water quality is good, the flow of the waste water is low, and the membrane filter element 51 does not need to be cleaned with high intensity, at the moment, the flow of the backflow waste water can be reduced by properly regulating the second flow control valve 33, a certain flow of the waste water is ensured, and the operation of the water purifying equipment 100 is facilitated; when the water quality is poor, the waste water flow is large, and the membrane filter element 51 needs to be cleaned with large strength, at this time, the second flow control valve 33 can be properly adjusted to increase the flow of the backflow waste water, so that the flushing effect of the membrane filter element 51 is ensured, and the water purifying flow of the filtering device 50 is increased to achieve the water saving effect.
The water purifying device 100 further comprises a waste water pipeline 20 connected with the waste water outlet, a waste water return pipeline 30 is connected with the waste water pipeline 20, and a shunt connection part 32 is arranged at the connection part of the waste water return pipeline 30 and the waste water pipeline 20; the waste water line 20 is provided with a third flow control valve 21, and the third flow control valve 21 is located on the side of the diverter connection 32 remote from the waste outlet. It should be appreciated that the return waste line 30 may also be connected directly to the waste outlet. In the present embodiment, the third flow rate control valve 21 can control the waste water flow rate, and by providing the third flow rate control valve 21, the waste water flow rate at the waste water discharge port can be controlled together with the second flow rate control valve 33. Wherein the waste water pipeline between the waste water outlet and the shunt connection 32 is a first waste water pipeline 22 for the waste water of the filtering device 50 to flow, and the other section of the waste water pipeline opposite to the first waste water pipeline is a second waste water pipeline 23, the third flow control valve 21 is positioned on the second waste water pipeline 23, and the second waste water pipeline 23 is used for the waste water to flow.
Further, the water purifying apparatus 100 further includes a temperature detector to measure the water temperature at the water inlet; and first control means for adjusting the opening degrees of the second flow control valve 33 and the third flow control valve 21 according to the water temperature at the water inlet. This allows the flow of the return waste water and the flow of the waste water to be controlled in dependence on the water temperature at the water inlet, which is proportional to the flow in the waste water return line 30. When the temperature is high, for example, greater than 25 ℃, the opening degree of the second flow control valve 33 can be appropriately adjusted, and the third flow control valve 21 can be adjusted according to the actual situation, so that the flow rate of the backflow wastewater is relatively increased under the condition of ensuring the proper flow rate of the wastewater of the filtering device 50, and the flushing of the membrane filter element 51 is enhanced. When the water temperature is lower, for example, lower than 25 ℃, the opening degree of the second flow control valve 33 is reduced, and when the temperature is lower, the opening degree of the third flow control valve 21 is reduced, so that the front pressure of the filtering membrane of the membrane filter element 51 can be increased, the purified water flow of the filtering device 50 can be indirectly increased, and the problem that the purified water flow is reduced under the condition of low water temperature can be effectively solved.
The water purification apparatus 100 further includes a water quality detector to measure water quality at the water inlet; and a second control means for adjusting the opening degrees of the second flow control valve 33 and the third flow control valve 21 according to the water quality at the water inlet, wherein the TDS value of the water quality at the water inlet is proportional to the flow rate of the wastewater return line 30. When the water quality is good, if the TDS value of the water to be purified is below 100mg/L, the second flow control valve 33 is reduced or even closed at the moment because the membrane filter element 51 does not need too large flushing strength, so that the working strength of the membrane filter element 51 is reduced (the working strength refers to the flow of the water to be purified of the membrane filter element 51), and the service life of the membrane filter element 51 is prolonged. Meanwhile, the third flow rate control valve 21 is adjusted to ensure a proper waste water flow rate, for example, the opening degree of the third flow rate control valve 21 can be adjusted to be small, so that the waste water flow rate can be reduced. When the water quality is poor, if the TDS value of the water to be purified is greater than 300mg/L, the second flow control valve 33 can be regulated to increase the flow rate of the reflux waste water and maintain the proper flow rate of the waste water, so that the flushing of the membrane filter element 51 can be enhanced, the waste water can be prevented from flowing too much, the flow rate of the purified water can be ensured, and the utilization rate of the water to be purified can be improved. The opening degree of the third flow control valve 21 may be kept unchanged, or may be correspondingly increased or decreased. Wherein the opening degrees of the second flow rate switching valve 33 and the third flow rate switching valve 21 can be comprehensively controlled by the detection data of both the water quality detector and the temperature detector.
Of course, the water purifying apparatus 100 further includes an auxiliary filtering device 60, wherein, as shown in fig. 2, the auxiliary filtering device 60 is provided with a front auxiliary filter element 61 and a rear auxiliary filter element 62; the front auxiliary filter element 61 comprises a front water inlet 611 and a front water outlet 612, and the rear auxiliary filter element 62 comprises a rear water inlet 621 and a rear water outlet 622; wherein the front water outlet 612 is communicated with the water inlet, and the purified water outlet is communicated with the rear water inlet 621. In the working process of the water purifying apparatus, water to be purified first enters the front auxiliary filter element 61 through the front water inlet 611 of the front auxiliary filter element 61 to be prefiltered, then flows out from the front water outlet 612, and then enters the filtering device 50. Then, the purified water from the purified water outlet of the filtering device 50 flows into the rear water inlet 621 through the purified water pipe 40, is post-filtered in the rear auxiliary filter cartridge 62, and then flows out of the rear water outlet 622. The front auxiliary filter element 61 can perform primary filtration on the magazines in water, so that the working strength of the membrane filter element 51 in the filtering device 50 is reduced, and the rear auxiliary filter element 622 can further ensure that the purified water filtered by the water purifying device 100 is more sanitary and clean.
Wherein the front auxiliary filter element 61 and the rear auxiliary filter element 62 are the same composite filter element. The front auxiliary filter element 61 and the rear auxiliary filter element 622 are integrally formed, and compared with the split design of the front auxiliary filter element 61 and the rear auxiliary filter element 62, the occupied space is less, so that the water purifying device 100 is simpler, and the space utilization rate is higher.
The foregoing description of the preferred embodiments of the present invention should not be construed as limiting the scope of the invention, but rather should be understood to cover all modifications, equivalents, and alternatives falling within the spirit and scope of the invention as defined by the following description and drawings or any application directly or indirectly to other relevant art(s).
Claims (5)
1. The utility model provides a water purification unit, includes filter equipment, filter equipment has water inlet, waste water outlet, purified water delivery port, its characterized in that, water purification unit still includes:
the two ends of the waste water return pipeline are respectively communicated with the water inlet and the waste water outlet;
a pressurizing device communicated with the waste water return pipeline for increasing the pressure of waste water flowing from the waste water return pipeline to the water inlet;
the waste water return pipeline is provided with a second flow control valve; the water purification equipment further comprises a waste water pipeline connected with the waste water outlet, the waste water reflux pipeline is connected with the waste water pipeline, the joint of the waste water reflux pipeline and the waste water pipeline is a shunt joint, a third flow control valve is arranged on the waste water pipeline, and the third flow control valve is positioned on one side of the shunt joint far away from the waste water outlet;
the water purification apparatus further includes:
the wastewater return pipeline is connected with the water inlet, and the joint of the wastewater return pipeline and the water inlet pipeline is a return joint;
the supercharging device is arranged on the water inlet pipeline and is positioned between the backflow connection part and the water inlet;
a temperature detector for measuring the water temperature at the water inlet;
the first control device is used for adjusting the opening degrees of the second flow control valve and the third flow control valve according to the water temperature at the water inlet; wherein the flow of the waste water return pipeline is in direct proportion to the water temperature at the water inlet;
the water quality detector is used for measuring the water quality at the water inlet;
the second control device is used for adjusting the opening degrees of the second flow control valve and the third flow control valve according to the water quality at the water inlet; wherein, the flow of the waste water return pipeline is in direct proportion to the TDS value of the water quality at the water inlet.
2. The water purification apparatus of claim 1, wherein the filtration device comprises at least two membrane cartridges, the at least two membrane cartridges being disposed in parallel.
3. The water purification apparatus of claim 2, wherein the membrane cartridge is a reverse osmosis membrane cartridge.
4. A water purification apparatus according to any one of claims 1 to 3, further comprising an auxiliary filter device, wherein the auxiliary filter device is provided with a front auxiliary filter element and a rear auxiliary filter element;
the front auxiliary filter element comprises a front water inlet and a front water outlet, and the rear auxiliary filter element comprises a rear water inlet and a rear water outlet; wherein,
the front water outlet is communicated with the water inlet, and the purified water outlet is communicated with the rear water inlet.
5. The water purification apparatus of claim 4, wherein the front auxiliary filter element and the rear auxiliary filter element are the same composite filter element.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710149448.3A CN108569790B (en) | 2017-03-13 | 2017-03-13 | Water purifying equipment |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710149448.3A CN108569790B (en) | 2017-03-13 | 2017-03-13 | Water purifying equipment |
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| CN108569790A CN108569790A (en) | 2018-09-25 |
| CN108569790B true CN108569790B (en) | 2023-12-19 |
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| CN106348395A (en) * | 2016-10-17 | 2017-01-25 | 珠海格力电器股份有限公司 | Water purification machine system and control method for controlling system |
| CN206666248U (en) * | 2017-03-13 | 2017-11-24 | 佛山市顺德区美的饮水机制造有限公司 | Purifier |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| WO2012124545A1 (en) * | 2011-03-17 | 2012-09-20 | 株式会社 東芝 | Seawater desalination device and method for controlling same |
| CN205328670U (en) * | 2015-12-25 | 2016-06-22 | 上海浩泽净水科技发展有限公司 | Automatic reverse osmosis water purification machine system of rate of recovery adjusts |
| CN106348395A (en) * | 2016-10-17 | 2017-01-25 | 珠海格力电器股份有限公司 | Water purification machine system and control method for controlling system |
| CN206666248U (en) * | 2017-03-13 | 2017-11-24 | 佛山市顺德区美的饮水机制造有限公司 | Purifier |
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