CN217808975U - Water purification system - Google Patents
Water purification system Download PDFInfo
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- CN217808975U CN217808975U CN202221471566.9U CN202221471566U CN217808975U CN 217808975 U CN217808975 U CN 217808975U CN 202221471566 U CN202221471566 U CN 202221471566U CN 217808975 U CN217808975 U CN 217808975U
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Abstract
The utility model discloses a water purification system, which comprises a reverse osmosis membrane filtration unit, a pretreatment filtration unit and a post-filtration unit; the pretreatment filtering unit comprises a plurality of filters which are connected in series, the pretreatment filtering unit is arranged at the front end of the reverse osmosis membrane filtering unit, and the rear filtering unit is connected to the rear end of the reverse osmosis membrane filtering unit and used for adsorbing peculiar smell of purified water in the water storage system. Use this water purification system, can effectively improve water purification efficiency and lifting means's life.
Description
Technical Field
The utility model belongs to the technical field of water resource purification, particularly belong to a water purification system.
Background
The mode that the purifier was with municipal running water direct access, impurity and peculiar smell realization that get rid of the aquatic through the purification unit in the purifier realize the purification purpose to the running water, the play water of purifier can reach the drinking water standard, because purifier convenient to use is swift, the filter core regularly changes clean health, use cost is economical and practical, and the purifier is gradually replacing traditional water dispenser that uses bottled water now, has become the family, uses very general drinking water equipment in the office space.
The purification effect taking a reverse osmosis membrane as a core in the existing water purifier device technology is the safest and the most reliable. The reverse osmosis membrane purification principle is a membrane separation technology which takes pressure as drive and separates impurities from tap water to obtain clean water. The water passing through the filter layer of the reverse osmosis membrane is called purified water. When water is purified due to the particularity of the reverse osmosis membrane purification process, the water which cannot pass through a filter layer of the reverse osmosis membrane is called concentrated water, and impurities in the water are discharged from a concentrated water pipeline.
Concentrated water can't reach the drinking water standard, can directly arrange the sewer usually, because of conventional process limitation, make a glass of water purification and need discharge 3 cups of concentrated water even more, these concentrated water that directly arrange have led to the fact the serious waste of water resource, in addition, current purifier does not possess self-cleaning function, impurity can be piled up to the purifier inside, lead to going out water quality of water to worsen, further lead to concentrated water emission to increase, consequently, need for one kind now urgently and can improve water purification efficiency, effectively reduce the purifier or the water purification system of concentrated water emission.
In view of this, the utility model discloses it is special.
SUMMERY OF THE UTILITY MODEL
An object of the utility model is to provide a water purification system, this kind of water purification system can realize comparing in the better water purification effect of prior art through close cooperation of preliminary treatment filter equipment unit, reverse osmosis membrane filter unit and rearmounted filter unit, can effectively reduce concentrated water discharge to and extension water purification system's life.
In order to realize the above purpose of the utility model, the following technical scheme is adopted:
the utility model provides a water purification system includes: the device comprises a reverse osmosis membrane filtering unit, a pretreatment filtering unit and a post-positioned filtering unit; the pretreatment filtering unit comprises a plurality of filters which are connected in series, the pretreatment filtering unit is arranged at the front end of the reverse osmosis membrane filtering unit, and the rear filtering unit is connected to the rear end of the reverse osmosis membrane filtering unit and used for adsorbing peculiar smell of purified water in the water storage system.
Preferably, the filter element of the pretreatment filter unit is a polypropylene and activated carbon combined filter element.
The filter element can be freely replaced, and a user can freely replace the used filter element according to the current water quality and the current external environment.
Preferably, the device also comprises a purified water outlet and a concentrated water outlet, wherein the purified water outlet is connected with the post-filtration unit, and purified water which is subjected to odor adsorption by the post-filtration unit flows out from the purified water outlet; the concentrated water outlet is connected with the reverse osmosis membrane filtering unit and is used for discharging concentrated water produced by the reverse osmosis membrane filtering unit and impurities in filtered water; and a flow limiting device is arranged between the reverse osmosis membrane filtering unit and the concentrated water outlet, and the flow limiting device increases the working pressure value of the reverse osmosis membrane filtering unit so as to improve the purified water amount.
The working principle of the flow limiting device is that the flow rate of reverse osmosis water is limited by the flow limiting device, so that the reverse osmosis water is accumulated in the reverse osmosis membrane filtering unit, the pressure value in the reverse osmosis membrane filtering unit is increased, the accumulated reverse osmosis water flows out through the purified water pipeline under the influence of the pressure, the purified water quality can be sacrificed a little, the purified water efficiency is greatly improved, the quality reduction of the purified water is naturally controlled and is within the water quality requirement limit, and the flow limiting amplitude of the flow limiting device can be adjusted in real time according to the water quality and other current environmental factors.
Preferably, the pretreatment filter unit is connected with a raw water pressure switch, and the raw water pressure switch is automatically powered off when the pretreatment filter unit is blocked so as to ensure the normal use of the pretreatment filter unit.
Preferably, reverse osmosis membrane filtration unit front end is connected with first solenoid operated valve, first solenoid operated valve is in reverse osmosis membrane filtration unit during operation is closed reverse osmosis membrane filtration unit during stop work first solenoid operated valve is opened in order to accomplish reverse osmosis membrane filtration unit's washing.
Preferably, the reverse osmosis membrane water purifier further comprises a water storage unit, wherein the water storage unit is used for storing purified water filtered by the reverse osmosis membrane filtering unit and cleaning the reverse osmosis membrane filtering unit by using the purified water; the water storage unit comprises a water storage barrel and a pure water pressure switch, and the pure water pressure switch detects the pressure in the water storage barrel and controls the opening and closing of the first electromagnetic valve according to the pressure.
Preferably, the pretreatment filter unit with be provided with the second solenoid valve between the reverse osmosis membrane filter unit, the water storage unit with be provided with the third solenoid valve between the rearmounted filter unit, the second solenoid valve with the third solenoid valve is used for restricting the flow direction of water.
Preferably, two check valves in opposite directions are arranged between the reverse osmosis membrane filtering unit and the water storage unit and are respectively used for storing the purified water filtered by the reverse osmosis membrane filtering unit into the water storage unit and cleaning the reverse osmosis membrane filtering unit by using the purified water in the water storage unit.
Preferably, the reverse osmosis membrane filtration unit is connected with a booster water pump, and the booster water pump is used for promoting reverse osmosis membrane filtration unit operating pressure value.
Preferably, the water purification system further comprises a circuit control board for circuit control.
Compared with the prior art, the beneficial effects of the utility model reside in that:
(1) The utility model can effectively improve the water purifying effect of the water purifying system through the close cooperation of the pretreatment filtering unit, the reverse osmosis membrane filtering unit and the post-positioned filtering unit;
(2) The discharge amount of concentrated water is reduced by using the flow limiting device, and the water yield of the water purifier is improved;
(3) Through the control of first solenoid valve, use the purified water with pressure drive washing and soak reverse osmosis membrane filtration unit, prolong water purification system's life.
Drawings
Various additional advantages and benefits will become apparent to those of ordinary skill in the art upon reading the following detailed description of the preferred embodiments. The drawings are only for purposes of illustrating the preferred embodiments and are not to be construed as limiting the invention. Also, like reference numerals are used to refer to like parts throughout the drawings. In the drawings:
fig. 1 is a schematic structural view of a water purification system provided by an embodiment of the utility model.
In the figure:
1-a water inlet; 2-raw water pressure switch;
3-a pre-treatment filtration unit; 4-a second solenoid valve;
5-a booster water pump; 6-a first electromagnetic valve;
7-a second one-way valve; 8-a reverse osmosis membrane filtration unit;
9-a current limiting device; 10-concentrated water outlet;
11-a first one-way valve; 12-pure water pressure switch;
13-a water storage barrel; 14-water storage barrel valve;
15-a third electromagnetic valve; 16-a post-filtration unit;
17-purified water outlet.
Detailed Description
The technical solutions of the present invention will be described clearly and completely with reference to the accompanying drawings and detailed description, but those skilled in the art will understand that the following described embodiments are some, not all, of the embodiments of the present invention, and are only used for illustrating the present invention, and should not be construed as limiting the scope of the present invention. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative efforts all belong to the protection scope of the present invention. The examples, in which specific conditions are not specified, were conducted under conventional conditions or conditions recommended by the manufacturer. The reagents or instruments used are not indicated by the manufacturer, and are all conventional products available commercially.
In the description of the present invention, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience of description and simplification of description, but do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus, should not be construed as limiting the present invention. Furthermore, the terms "first," "second," and "third" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance.
In the description of the present invention, it should be noted that, unless otherwise explicitly specified or limited, the terms "mounted," "connected" and "connected" are to be construed broadly, and may be, for example, fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meaning of the above terms in the present invention can be understood in specific cases to those skilled in the art.
In order to explain the technical solution of the present invention more clearly, the following description is made in the form of specific embodiments.
Example 1
Referring to fig. 1, the embodiment provides a water purification system, which includes a reverse osmosis membrane filtration unit 8, a pretreatment filtration unit 3 and a post-filtration unit 16, wherein the pretreatment filtration unit 3 includes a plurality of filters connected in series, the pretreatment filtration unit 3 is disposed at the front end of the reverse osmosis membrane filtration unit 8, and the post-filtration unit 16 is connected to the rear end of the reverse osmosis membrane filtration unit 8, and is used for adsorbing peculiar smell of purified water in the water storage system and improving the taste of the purified water.
Preferably, the filter element of the pretreatment filter unit 3 is a polypropylene and activated carbon mixed filter element.
Preferably, the device also comprises a purified water outlet 17 and a concentrated water outlet 10, wherein the purified water outlet 17 is connected with the post-filtration unit 16, and the purified water which is subjected to odor adsorption by the post-filtration unit 16 flows out through the purified water outlet 17; the concentrated water outlet 10 is connected with the reverse osmosis membrane filtering unit 8 and is used for discharging concentrated water produced by the reverse osmosis membrane filtering unit 8 and impurities in filtered water; a flow limiting device 9 is arranged between the reverse osmosis membrane filtering unit 8 and the concentrated water outlet 10, and the flow limiting device 9 increases the working pressure value of the reverse osmosis membrane filtering unit 8 to improve the water purifying efficiency.
Preferably, a raw water pressure switch 2 is connected to the pretreatment filter unit 3, and the raw water pressure switch 2 is automatically powered off when the pretreatment filter unit 3 is blocked so as to ensure the normal use of the pretreatment filter unit 3.
In this embodiment, appear in the water purification system working process that running water stops the water scheduling problem and lead to raw water pressure switch 2 detects the running water pressure value and is less than the setting value after, it can break off pressure boost pump 5's circuit automatically in order to prevent it to work under the environment of lack of water and damage, in this water purification system use in addition, if pretreatment filter unit 3 blocks up, raw water pressure switch 2 can be used for indicateing the user to change pretreatment filter unit 3's filter core through the mode of make-and-break circuit repeatedly.
Preferably, the front end of the reverse osmosis membrane filtering unit 8 is connected with a first electromagnetic valve 6, and the first electromagnetic valve 6 is closed when the reverse osmosis membrane filtering unit 8 works, so as to prevent purified water from flowing back into the reverse osmosis membrane filtering unit 8 for circulating purification, thereby avoiding resource waste; when the reverse osmosis membrane filtering unit 8 stops working, the first electromagnetic valve 6 is opened to complete the cleaning of the reverse osmosis membrane filtering unit 8 and the flow limiting device 9.
Preferably, the reverse osmosis membrane cleaning device further comprises a water storage unit, wherein the water storage unit is used for storing the purified water filtered by the reverse osmosis membrane filtering unit 8 and cleaning the reverse osmosis membrane filtering unit 8 by using the purified water; the water storage unit comprises a water storage barrel 13 and a pure water pressure switch 12, wherein the pure water pressure switch 12 detects the pressure in the water storage barrel 13 and controls the first electromagnetic valve 6 to be opened and closed according to the pressure.
The water storage unit is used for storing purified water purified by the reverse osmosis membrane filtering unit 8, the purified water is stored in the water storage container when the purified water is horizontal, a user can quickly obtain the purified water only by opening the purified water outlet when using the water storage unit, and waiting time is shortened.
In this embodiment, the pure water pressure switch 12 is used for detecting the pressure in the purified water pipeline and the water storage barrel 13, and automatically disconnecting the circuit when the pressure in the water storage barrel 13 reaches a preset disconnection value, so that the water purification system is in a stop working state; when the pressure in the water storage barrel 13 reaches a set closed value, the circuit is closed, so that the water purification system is in a starting working state, the water storage unit is prevented from being damaged due to overhigh water pressure in the purified water pipeline and the water storage barrel 13, and the normal use is prevented from being influenced due to the fact that no water exists in the water storage unit due to overlow water pressure.
The water storage unit further comprises a water storage barrel valve 14 for controlling the water inlet and water stop states of the water storage barrel through a manual switch.
Preferably, a second electromagnetic valve 4 is arranged between the pretreatment filtering unit 3 and the reverse osmosis membrane filtering unit 8, a third electromagnetic valve 15 is arranged between the water storage unit and the post-filtration unit 16, and the second electromagnetic valve 4 and the third electromagnetic valve 15 are used for limiting the flowing direction of water.
In this embodiment, the second electromagnetic valve 4 opens the valve when the reverse osmosis membrane filtering unit 8 works, so that the water filtered by the pretreatment filtering unit 3 enters the rear end for deep purification; the reverse osmosis membrane filtration unit 8 closes the valve when out of work, lets the water after the preliminary treatment filtration unit 3 filters stay in front of second solenoid valve 4, prevents that the rear end equipment from receiving the effect of running water pressure for a long time and leading to ageing with higher speed and damage to and prevent that a large amount of water from causing the waste of water resource by concentrated water interface discharge.
In this embodiment, third solenoid valve 15 is used for regularly closing out water under the condition of long-time continuous use purified water, and the reverse osmosis membrane filtration unit 8 and current limiting device 9 are washed to periodic use purified water, and the setting of this valve can effectively reduce the TDS value in the aquatic, prevents the production of incrustation scale, prolongs reverse osmosis membrane filtration unit 8 and current limiting device 9's life.
Preferably, two check valves in opposite directions are arranged between the reverse osmosis membrane filtration unit 8 and the water storage unit, and are respectively used for storing the purified water filtered by the reverse osmosis membrane filtration unit 8 into the water storage unit and cleaning the reverse osmosis membrane filtration unit 8 by using the purified water in the water storage unit.
In this embodiment, the second check valve 7 is used to prevent water that has not been purified by the reverse osmosis membrane filtration unit 8 from entering the purified water pipeline, which causes pollution of the purified water and quality degradation of the purified water; the first check valve 11 is used for preventing purified water in the water storage unit from flowing back to the reverse osmosis membrane filtering device under the driving of water pressure and being discharged from the concentrated water outlet to cause waste of water resources when the water storage unit stops working.
Preferably, reverse osmosis membrane filtration unit 8 is connected with booster pump 5, booster pump 5 is used for promoting reverse osmosis membrane filtration unit 8 operating pressure value to make water pressure reach reverse osmosis membrane filtration unit 8's operating water pressure requirement.
Preferably, the water purification system further comprises a circuit control board for circuit control.
The embodiment also provides a water purification method using the water purification system:
running water gets into the inlet tube from water inlet 1, carries out the front end through pretreatment filter equipment in proper order and filters, gets rid of partial particulate impurity in aquatic, organic pollutant, carries out the water pressure through booster pump 5 and promotes, gets into reverse osmosis membrane filter unit 8 and carries out the deep separation and purification.
The water purified by the reverse osmosis membrane filtering unit 8 enters the water storage unit through the first one-way valve 11 to be used. When the purified water outlet 17 is opened, the water in the water storage unit flows out through the third electromagnetic valve, enters the post-filter unit 16 for adsorption and filtration, and then flows out from the purified water outlet 17.
Purified water stored in the water storage unit enters a reverse osmosis membrane filtering unit 8 through a first electromagnetic valve 6 and a second one-way valve 7 to be washed and soaked by a filter element, passes through a flow limiting device 9 and is discharged from a concentrated water outlet 10.
When the circuit control board detects that the accumulated working time and the overlong continuous standby time of the water purifier reach set values, the circuit control board closes the third electromagnetic valve 15, the water purification system continues to work until the pressure value of the purified water pipeline reaches the cut-off value of the purified water pressure switch 12, the water purification system stops working, the second electromagnetic valve 4 and the booster water pump 5 are closed, the first electromagnetic valve and the flow limiting device 9 are opened, and a small amount of purified water washes the reverse osmosis membrane filtering unit 8 and the flow limiting device 9 and is discharged from the concentrated water outlet 10. Reduce because TDS value and hardness concentration rise in the aquatic, influence reverse osmosis membrane filtration unit 8's purifying effect, scale deposit and reduce and purify water velocity of flow, and cause reverse osmosis membrane filtration unit 8 performance decay after current-limiting device 9 blocks up. The accumulated working time and the ultra-long continuous standby time can be adjusted and set according to different water qualities.
The circuit control board makes the TDS value and the flow rate performance of the purified water qualified according to the inlet water quality of the water purifier, the accumulated working time, the overlong continuous standby time, the on-off of the first electromagnetic valve 6 and the flow limiting device 9 and the adjustment of the flow rate, and reduces the discharge amount of the concentrated water on the premise of ensuring the purification effect of the reverse osmosis membrane filtration unit 8, the normal flow rate and the prolonged service life, thereby fully utilizing the water resource.
Comparative example 1
The reverse osmosis membrane filtration unit is not flushed by purified water backflow, namely the first electromagnetic valve 6 and the second one-way valve 7 are not arranged in the water purification system.
The other technical means are the same as those in example 1.
Experimental example 1
The following experiment was performed using the water purifiers according to the embodiments of example 1 and comparative example 1: the water purification tests are carried out under the same water quality condition by using 100G reverse osmosis membranes, and the water purification tests comprise the following steps:
a. under the condition of keeping the water inlet pressure unchanged, introducing test water into the water purifier;
b. carrying out work tests continuously for 24 hours;
c. when the purified water quantity of the water purifier reaches every 500L in sequence, respectively testing the purified water flow rate, the concentrated water flow rate, the water production rate and the removal rate;
d. if the requirements that the flow rate of purified water is more than or equal to 260ml/min, the water yield is more than or equal to 65 percent and the removal rate is more than or equal to 95 percent cannot be met in the test, judging that the total purified water quantity of the water purifier cannot reach the nominal rated total purified water quantity, and terminating the test.
The water purification test results of example 1 are shown in table 1 below, and the water purification test results of comparative example 1 are shown in table 2 below:
TABLE 1 Water purification test results without purified Water backwash
Table 2 water purification experimental results using purified water reflux washing scheme
In comparative example 1, the water purification experiment was terminated because the flow rate of purified water was lower than the nominal value and the water production rate was lower than desired.
From the experimental results in the table above, it can be seen that:
(1) The water purifier of comparative example 1 has a purified water flow rate lower than the nominal value of the water purifier and a water production rate lower than the requirement when the accumulated purified water amount reaches 1000L; when the accumulated purified water amount of the water purifier in the embodiment 1 reaches 3000L, the flow rate of the purified water still meets the requirements of the nominal value and the water yield of the water purifier; the service life of the latter is prolonged by more than 2 times than that of the former;
(2) The water production rate of the water purifier of comparative example 1 decays by 8.3% on average per 500L; the water yield of the water purifier in the embodiment 1 is averagely attenuated by 1.22 percent per 500L, and the water yield of the water purifier in the latter embodiment is attenuated by 7.08 percent compared with that of the water purifier in the former embodiment;
(3) The water purification flow rate attenuation rate of the water purifier of comparative example 1 is 30% per 500L, and the water purification flow rate attenuation rate of the water purifier of example 1 is 5.3% per 500L; the latter decays 82.3% slower than the former purified water flow rate.
Therefore, the existing water purifier is used for a long time, the flow speed of purified water is reduced at the highest speed, the water production rate is reduced, and the problem of water waste is serious, and the water purification system disclosed by the application has higher water production efficiency and longer service life.
Finally, it should be noted that: the above embodiments are only used to illustrate the technical solution of the present invention, and not to limit the same; although the present invention has been described in detail with reference to the foregoing embodiments, it should be understood by those skilled in the art that: the technical solutions described in the foregoing embodiments may still be modified, or some or all of the technical features may be equivalently replaced; such modifications and substitutions do not depart from the spirit and scope of the present invention.
Claims (9)
1. A water purification system, comprising: the device comprises a reverse osmosis membrane filtering unit, a pretreatment filtering unit and a post-positioned filtering unit; the pretreatment filtering unit comprises a plurality of filters which are connected in series, the pretreatment filtering unit is arranged at the front end of the reverse osmosis membrane filtering unit, and the rear filtering unit is connected to the rear end of the reverse osmosis membrane filtering unit and used for adsorbing peculiar smell of purified water in the water storage system.
2. The water purification system of claim 1, wherein the filter element of the pre-treatment filter unit is a polypropylene, activated carbon combined filter element.
3. The water purification system of claim 1, further comprising a purified water outlet and a concentrated water outlet, wherein the purified water outlet is connected with the post-filtration unit, and purified water which is subjected to odor adsorption by the post-filtration unit flows out through the purified water outlet; the concentrated water outlet is connected with the reverse osmosis membrane filtering unit and is used for discharging concentrated water produced by the reverse osmosis membrane filtering unit and impurities in filtered water; and a flow limiting device is arranged between the reverse osmosis membrane filtering unit and the concentrated water outlet, and the flow limiting device increases the working pressure value of the reverse osmosis membrane filtering unit so as to improve the purified water amount.
4. The water purification system of claim 1, wherein a raw water pressure switch is connected to the pre-treatment filter unit, and the raw water pressure switch is automatically de-energized when the pre-treatment filter unit is clogged to ensure normal use of the pre-treatment filter unit.
5. The water purification system of claim 1, wherein a first electromagnetic valve is connected to the front end of the reverse osmosis membrane filtration unit, the first electromagnetic valve is closed when the reverse osmosis membrane filtration unit is in operation, and the first electromagnetic valve is opened when the reverse osmosis membrane filtration unit is out of operation to complete the cleaning of the reverse osmosis membrane filtration unit.
6. The water purification system of claim 5, further comprising a water storage unit for storing the purified water filtered by the reverse osmosis membrane filtration unit and for cleaning the reverse osmosis membrane filtration unit with the purified water; the water storage unit comprises a water storage barrel and a pure water pressure switch, and the pure water pressure switch detects the pressure in the water storage barrel and controls the opening and closing of the first electromagnetic valve according to the pressure.
7. The water purification system of claim 6, wherein a second electromagnetic valve is arranged between the pretreatment filtering unit and the reverse osmosis membrane filtering unit, a third electromagnetic valve is arranged between the water storage unit and the post-filtration unit, and the second electromagnetic valve and the third electromagnetic valve are used for limiting the flow direction of water.
8. The water purification system of claim 6, wherein two check valves are arranged between the reverse osmosis membrane filtration unit and the water storage unit, and the check valves are used for storing purified water filtered by the reverse osmosis membrane filtration unit into the water storage unit and cleaning the reverse osmosis membrane filtration unit by using the purified water in the water storage unit.
9. The water purification system of claim 1, wherein the reverse osmosis membrane filtration unit is connected with a booster water pump, and the booster water pump is used for increasing the working pressure value of the reverse osmosis membrane filtration unit.
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| CN202221471566.9U CN217808975U (en) | 2022-06-13 | 2022-06-13 | Water purification system |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN114873764A (en) * | 2022-06-13 | 2022-08-09 | 开源环保科技（上海）有限公司 | Water purification system and water purification method |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN114873764A (en) * | 2022-06-13 | 2022-08-09 | 开源环保科技（上海）有限公司 | Water purification system and water purification method |
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