CN218709251U

CN218709251U - Reverse osmosis water purification machine

Info

Publication number: CN218709251U
Application number: CN202222453115.9U
Authority: CN
Inventors: 李江
Original assignee: Qingdao Bozhou Trading Co ltd
Current assignee: Qingdao Bozhou Trading Co ltd
Priority date: 2022-09-15
Filing date: 2022-09-15
Publication date: 2023-03-24
Anticipated expiration: 2032-09-15

Abstract

The utility model relates to a purifier technical field, concretely relates to reverse osmosis water purification machine, including water inlet, leading filter, water pump, main line, first branch road and second branch road. When the utility model is used for producing pure water, tap water is filtered by the pre-filter, the main RO membrane on the first branch, the auxiliary RO membrane on the second branch and the post-filter in a multi-stage filtration manner and is filtered by reverse osmosis, so that the drinking water quality and the taste are improved, and the user experience is improved; the flow of the prepared pure water is the flow of the main RO membrane and the auxiliary RO membrane which are superposed, and the working efficiency is higher. In the washing process, the pure water that obtains after filtering through vice RO membrane reverse osmosis washes main RO membrane, dilutes the water of high TDS value and flows out through dense water pipeline, reduces TDS to the standard range in, and the user is when next water, and the water in the main RO membrane is the water of low TDS value, and first cup water TDS value is higher than normal when having effectively solved the water purification machine and shut down the back and move again, unable problem of direct use, promotion user experience.

Description

Reverse osmosis water purification machine

Technical Field

The utility model relates to a purifier technical field, concretely relates to reverse osmosis water purification machine.

Background

Along with the increasing concern of society and people on drinking water safety, a water purifying device, in particular a reverse osmosis water purifier, gradually becomes one of essential household appliances in daily life of people. When the reverse osmosis water purifier is used for producing water, under the action of external pressure, water molecules penetrate through the osmosis membrane and enter the pure water side to obtain pure water, the TDS value is in a normal state, and salt ions and the like are trapped on the concentrated water side. When the water purifier stops running for a period of time, pure water on the pure water side cannot permeate back to the concentrated water side, concentrated water on the concentrated water side can gradually diffuse to the pure water side, namely salt ions or other soluble solids and the like on the concentrated water side slowly diffuse to the pure water side, and the TDS value on the pure water side is increased; therefore, the TDS value, namely the total soluble solid content, of the first cup of water after the water purifier operates again is higher, and the water purifier cannot be directly drunk, so that the user experience is influenced; meanwhile, solute substances such as water scale and crystal substances are easy to deposit on the surface of the reverse osmosis filter membrane, so that the service life of the filter membrane is shortened.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide a reverse osmosis water purification machine to solve the prior art problem that exists among the above-mentioned background art.

For solving the above technical problem, the utility model provides a technical scheme does: the reverse osmosis water purifier comprises a water inlet, a pre-filter, a water pump, a main pipeline, a first branch and a second branch, wherein one end of the pre-filter is communicated with the water inlet, the other end of the pre-filter is communicated with the water inlet of the water pump, and the water outlet of the water pump is communicated with the main pipeline; the main pipeline is provided with a first electromagnetic valve and is positioned between a first branch and a second branch, and the first branch and the second branch are arranged on the main pipeline in parallel;

the first branch is provided with a main RO membrane, the tail end of the main RO membrane is respectively communicated with a first pure water pipeline and a first concentrated water pipeline, and the first pure water pipeline is sequentially provided with a first check valve, a pressure switch and a post-filter;

the second is set gradually third solenoid valve and vice RO membrane on the way, the end of vice RO membrane communicates respectively has second pure water pipeline and the dense water pipeline of second, be provided with the third check valve on the second pure water pipeline, the end of second pure water pipeline is parallelly connected to be provided with first pipeline and second pipeline, the end of first pipeline communicates with main RO membrane head end, the end of second pipeline communicates and the kneck sets up the end at first check valve with first pure water pipeline, be provided with the second check valve on the first pipeline, be provided with the fourth solenoid valve on the second pipeline.

On the basis of the technical scheme, the water pump further comprises a third branch, one end of the third branch is communicated with the water outlet of the water pump, the other end of the third branch is communicated with the water inlet of the water pump, and a second electromagnetic valve is arranged on the third branch.

On the basis of the technical scheme, a first flow valve is arranged on the first concentrated water pipeline, a third flow valve is arranged on the second concentrated water pipeline, and a second flow valve is arranged on the third branch pipeline.

On the basis of the technical scheme, the flow rate and the size of the auxiliary RO membrane are both smaller than those of the main RO membrane.

On the basis of the technical scheme, the pressure in the first pipeline is greater than the pressure in the second pipeline.

On the basis of the technical scheme, the pre-filter comprises a first-stage filter, a second-stage filter and a third-stage filter which are sequentially arranged, a filter element of the first-stage filter is PP cotton, and filter elements of the second-stage filter and the third-stage filter are CTO activated carbon.

On the basis of the technical scheme, the filter element of the post-filter is set to be activated carbon.

On the basis of the technical scheme, the first electromagnetic valve, the second electromagnetic valve, the third electromagnetic valve and the fourth electromagnetic valve are all set to be one-way valves.

The utility model provides a beneficial effect that technical scheme produced lies in:

1. in the process of preparing pure water, the utility model carries out filtration and multi-stage filtration and reverse osmosis filtration on tap water by arranging the pre-filter, the main RO membrane on the first branch, the auxiliary RO membrane on the second branch and the post-filter, thereby improving the drinking water quality and taste and improving the user experience; meanwhile, the flow of the prepared pure water is the flow of the main RO membrane and the auxiliary RO membrane which are superposed, and the working efficiency is higher. In the flushing process, the main RO membrane is flushed by pure water obtained after reverse osmosis filtration of the auxiliary RO membrane, the water with a high TDS value is diluted and flows out through a concentrated water pipeline, the TDS is reduced to a standard range, and when a user uses water for the next time, the water in the main RO membrane is water with a low TDS value, so that the problem that the TDS value of first cup water is high and cannot be directly used when the water purifier is stopped and operates again is effectively solved, and the user experience is improved; meanwhile, the auxiliary RO membrane washes the main RO membrane, so that the solute substance deposited on the surface of the main RO membrane can be reduced, and the service life of the main RO membrane is prolonged.

2. Through parallelly connected being provided with the third branch road on the main line, form return line between with the water pump, adopt the mode of adopting the reposition of redundant personnel promptly to get back to the water pump water inlet with some flow of water pump through second solenoid valve, second flow valve, can guarantee the rated flow of water pump like this, strengthen its stability in use, increase of service life.

Drawings

FIG. 1 is a schematic view of the present invention;

FIG. 2 is a schematic view of the water flow path in the water making process of the present invention;

FIG. 3 is a schematic view of the water flow path during flushing in accordance with the present invention;

Detailed Description

The invention will be further explained with reference to the following figures and examples:

in the present invention, unless otherwise expressly stated or limited, the terms "mounted," "connected," and "fixed" are to be construed broadly and may, for example, be fixedly connected, detachably connected, or integrally formed; either directly or indirectly through intervening media, either internally or in any other relationship. The specific meaning of the above terms in the present invention can be understood according to specific situations by those skilled in the art.

In the description of the present invention, it is to be understood that the terms "left", "right", "front", "back", "top", "bottom", 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.

Example one

As shown in fig. 1 to 3, a reverse osmosis water purifier comprises a water inlet 1, a pre-filter, a water pump 3, a main pipeline 4, a first branch 5 and a second branch 6, wherein one end of the pre-filter is communicated with the water inlet 1, the other end of the pre-filter is communicated with the water inlet of the water pump 3, and the water outlet of the water pump 3 is communicated with the main pipeline 4; the main pipeline 4 is provided with a first electromagnetic valve 7 and is positioned between the first branch pipeline 5 and the second branch pipeline 6, and the first branch pipeline 5 and the second branch pipeline 6 are arranged on the main pipeline 4 in parallel;

the first branch 5 is provided with a main RO membrane 51, the tail end of the main RO membrane 51 is respectively communicated with a first pure water pipeline 52 and a first concentrated water pipeline 53, and the first pure water pipeline 52 is sequentially provided with a first check valve 54, a pressure switch 55 and a post-filter 56;

the last third solenoid valve 61 and the vice RO membrane 62 of having set gradually of second branch 6, the end of vice RO membrane 62 communicates respectively has second pure water pipeline 63 and the dense water pipeline 64 of second, be provided with third check valve 65 on the second pure water pipeline 63, the end of second pure water pipeline 63 is parallelly connected to be provided with first pipeline 66 and second pipeline 67, first pipeline 66 end and main RO membrane 51 head end intercommunication, second pipeline 67 end and first pure water pipeline 52 intercommunication and kneck set up the end at first check valve 54, be provided with second check valve 68 on the first pipeline 66, be provided with fourth solenoid valve 69 on the second pipeline 67. As shown in fig. 1, the first electromagnetic valve 7 is disposed on the main pipeline 4 and between the two branches of the first branch 5 and the second branch 6, that is, the first electromagnetic valve 7 is mainly used for controlling the flow of water in the first branch 5. It should be noted that the above-mentioned head end and tail end are defined according to the water flowing direction, and are only for convenience of understanding and description of the technical solution of the present application, and do not limit the technical solution.

In the process of preparing pure water, the utility model carries out multi-stage filtration and reverse osmosis filtration on tap water by arranging the pre-filter, the main RO membrane 51 on the first branch 5, the auxiliary RO membrane 62 on the second branch 6 and the post-filter 56, thereby improving the drinking water quality and taste and improving the user experience; meanwhile, the flow rate of the prepared pure water is the flow rate of the main RO membrane 51 and the auxiliary RO membrane 62, and the working efficiency is higher. At washing the in-process, the pure water that obtains after filtering through vice RO membrane 62 reverse osmosis washes main RO membrane 51, dilute the water of its high TDS value and flow out through dense water pipeline, reduce TDS to the standard range in, the user is when next water use, the water in the main RO membrane 51 is the water of low TDS value, first cup water TDS value is higher when having effectively solved the water purification machine and having shut down the back rerun, unable direct use's problem, promote user experience. Meanwhile, the auxiliary RO membrane washes the main RO membrane, so that the solute substance deposited on the surface of the main RO membrane can be reduced, and the service life of the main RO membrane is prolonged.

On the basis of the above technical solution, the first concentrate pipeline 53 is provided with a first flow valve 57, the second concentrate pipeline 64 is provided with a third flow valve 610, and the third branch 8 is provided with a second flow valve 82. The flow valves are arranged on the pipelines, so that the flow in the pipelines can be adjusted and controlled, the stable operation of the water purifier is maintained, meanwhile, the equipment damage is reduced, and the service life is prolonged; specifically, the first flow valve 57 is arranged on the first concentrate pipeline 53, and the third flow valve 610 is arranged on the second concentrate pipeline 64, so that the outflow of the concentrate can be effectively controlled, the working pressures of the main RO membrane 51 and the auxiliary RO membrane 62 can be stabilized and protected, and damage can be reduced; the second flow valve 82 is arranged on the third branch 8, so that the amount of raw water flowing back into the water pump 3 can be controlled, the rated flow of the water pump 3 is kept, the damage to the water pump 3 is reduced, and the normal and stable operation of the water purification machine is ensured.

On the basis of the technical scheme, the flow rate and the size of the secondary RO membrane 62 are both smaller than those of the primary RO membrane 51. It should be noted that the above mentioned flow rate refers to the amount of water passing through, i.e. the water production amount.

On the basis of the above technical solution, the pressure in the first pipeline 66 is greater than the pressure in the second pipeline 67. With the above arrangement, in the water production process of the water purifier, pure water passing through the auxiliary RO membrane 62 passes through the third check valve 65 and then flows out of the first pure water pipeline 52 only through the fourth solenoid valve 69, and does not pass through the second check valve 68 and then enters the main RO membrane 51, so that the flow path of pure water can be reduced, and the water production efficiency can be increased. During the rinsing operation, since the fourth solenoid valve 69 is closed, the pure water having passed through the sub-RO membrane 62 passes through the third check valve 65 and the second check valve 68 and enters the main RO membrane 51 to be rinsed.

On the basis of the technical scheme, the pre-filter comprises a first-stage filter 21, a second-stage filter 22 and a third-stage filter 23 which are sequentially arranged, a filter element of the first-stage filter 21 is PP cotton, and filter elements of the second-stage filter 22 and the third-stage filter 23 are all CTO activated carbon. The tap water can be effectively subjected to primary filtration by sequentially arranging the three stages of filtration at the tail end of the water inlet 1; preferably, the first filter 21 is made of PP cotton, and mainly absorbs impurities such as large particles, dust, and visible substances in tap water, and the second filter 22 and the third filter 23 both use activated carbon CTO, which is a precision activated carbon, and mainly absorbs chlorine-containing substances, organic substances, and odors in tap water; therefore, the three-stage filtration is arranged at the water inlet, so that the filtration effect can be effectively enhanced.

On the basis of the above technical solution, the filter element of the post-filter 56 is set as activated carbon. Through be provided with rearmounted filter 56 on first pure water pipeline 52, more preferred adoption active carbon filter core carries out further filtration to the pure water that the water purification machine was prepared, improves drinking water quality, promotes user experience.

On the basis of the above technical solution, the first solenoid valve 7, the second solenoid valve 81, the third solenoid valve 61 and the fourth solenoid valve 69 are all set as one-way valves.

Example two

On the basis of the technical scheme of the embodiment, the difference is that the water pump device further comprises a third branch 8, one end of the third branch 8 is communicated with a water outlet of the water pump 3, the other end of the third branch 8 is communicated with a water inlet of the water pump 3, and a second electromagnetic valve 81 is arranged on the third branch 8. As shown in fig. 1, one end of the third branch 8 is disposed on the main pipeline 4 and is connected in parallel with the first branch 5 and the second branch 6, and two ends of the third branch 8 are respectively communicated with the water inlet and the water outlet of the water pump 3, that is, the third branch 8 and the water pump 3 form a loop to supplement the flow in the water pump 3; because the auxiliary RO membrane 62 uses the RO membrane with smaller flow rate compared with the main RO membrane 51, the water pump can be damaged if the rated flow rate of the water pump 3 can not be reached in the operation process, and a part of flow rate of the water pump 3 returns to the water inlet of the water pump 3 through the second electromagnetic valve 81 and the second flow valve 82 by adopting a shunting mode, so that the rated flow rate of the water pump 3 can be ensured, the use stability of the water pump is enhanced, and the service life is prolonged.

On the basis of the above technical solution, the third branch 8 is provided with a second flow valve 82. The second flow valve 82 is arranged on the third branch 8, so that the amount of raw water flowing back into the water pump 3 can be controlled, the rated flow of the water pump 3 is maintained, the damage to the water pump 3 is reduced, and the normal and stable operation of the water purifier is ensured.

As shown in fig. 2, when the water purification machine is operated to produce water, the water pump, the first solenoid valve 7, the third solenoid valve 61 and the fourth solenoid valve 69 are opened, the second solenoid valve 81 is closed, tap water enters from the water inlet 1, flows into the water pump 3 after being filtered by the three stages provided in the pre-filter, and enters the main pipeline 4 after being pressurized by the water pump 3. On one hand, water in the main pipeline 4 enters the main RO membrane 51 through the first electromagnetic valve 7 for reverse osmosis filtration, the filtered concentrated water flows out through the first concentrated water pipeline 53, and the filtered pure water flows out through the first pure water pipeline 52 after passing through the pressure switch 55 and the post-filter 56; on the other hand, the water in the main pipeline 4 enters the auxiliary RO membrane 62 through the third electromagnetic valve 61 for reverse osmosis filtration, the filtered concentrated water flows out through the second concentrated water pipeline 64, and the filtered pure water flows out through the first pure water pipeline 63 after passing through the third check valve 65 and the fourth electromagnetic valve 69 on the second pure water pipeline 63. At this time, the flow rate of the pure water is the flow rate of the main RO membrane 51 and the auxiliary RO membrane 62, and the filtered pure water further improves the taste of the water quality through the post-positioned activated carbon, thereby improving the user experience.

As shown in fig. 3, in the flushing process of the water purification machine, the water pump 3, the second solenoid valve 81 and the third solenoid valve 61 are opened, the first solenoid valve 7 and the fourth solenoid valve 69 are closed, and tap water enters from the water inlet 1, flows into the water pump 3 after being filtered by the three stages provided in the pre-filter, and enters the main pipeline 4 after being pressurized by the water pump 3. On one hand, water in the main pipeline 4 enters the auxiliary RO membrane 62 through the third electromagnetic valve 61 to be subjected to reverse osmosis filtration, the filtered concentrated water flows out through the second concentrated water pipeline 64, the filtered pure water flows into the main RO membrane 51 through the third check valve 65 and the second check valve 68 on the second pure water pipeline 63 to flush the main RO membrane 51, the water with the high TDS value in the main RO membrane 51 is diluted and directly discharged through the first flow valve 57 and the first concentrated water pipeline 53, and the TDS value of the water in the main RO membrane 51 can be reduced to be within a standard range after the flushing for a short time (1-2 min); on the other hand, water in the main pipeline 4 is shunted into the water pump 3 through the third branch 8, so that the rated flow of the water pump 3 is kept, and the damage is reduced. The user can directly drink when next water use like this, has solved the higher problem of first cup water TDS value after the water purification machine rerun, effectively improves user experience.

The pure water mentioned above is water supplied to people after reverse osmosis filtration, and the concentrated water refers to water with impurities.

Having shown and described the basic principles and essential features of the invention, it will be apparent to those skilled in the art that the invention is not limited to the details of the foregoing exemplary embodiments, and that the embodiments are thus to be considered as exemplary and not restrictive, the scope of the invention being indicated by the appended claims rather than by the foregoing description, and all changes which come within the meaning and range of equivalency of the claims are therefore intended to be embraced therein.

Furthermore, it should be understood that although the present specification describes embodiments, not every embodiment includes only a single embodiment, and such description is for clarity purposes only, and it is to be understood that all embodiments may be combined as appropriate by one of ordinary skill in the art to form other embodiments as will be apparent to those of skill in the art from the description herein.

Claims

1. A reverse osmosis water purifier is characterized by comprising a water inlet (1), a pre-filter, a water pump (3), a main pipeline (4), a first branch (5) and a second branch (6), wherein one end of the pre-filter is communicated with the water inlet (1), the other end of the pre-filter is communicated with the water inlet of the water pump (3), and the water outlet of the water pump (3) is communicated with the main pipeline (4); the main pipeline (4) is provided with a first electromagnetic valve (7) and is positioned between the first branch pipeline (5) and the second branch pipeline (6), and the first branch pipeline (5) and the second branch pipeline (6) are arranged on the main pipeline (4) in parallel;

a main RO membrane (51) is arranged on the first branch (5), the tail end of the main RO membrane (51) is respectively communicated with a first pure water pipeline (52) and a first concentrated water pipeline (53), and a first check valve (54), a pressure switch (55) and a post-filter (56) are sequentially arranged on the first pure water pipeline (52);

the utility model discloses a two way water purifier, including second branch road (6), second branch road (6) are last to be provided with third solenoid valve (61) and vice RO membrane (62) in proper order, the end of vice RO membrane (62) communicates respectively has second pure water pipeline (63) and second dense water pipeline (64), be provided with third check valve (65) on second pure water pipeline (63), the end of second pure water pipeline (63) is parallelly connected and is provided with first pipeline (66) and second pipeline (67), first pipeline (66) end and main RO membrane (51) head end intercommunication, second pipeline (67) end and first pure water pipeline (52) intercommunication and kneck set up the end at first check valve (54), be provided with second check valve (68) on first pipeline (66), be provided with fourth solenoid valve (69) on second pipeline (67).

2. A reverse osmosis water purification machine according to claim 1, further comprising a third branch (8), wherein one end of the third branch (8) is communicated with the water outlet of the water pump (3), the other end is communicated with the water inlet of the water pump (3), and the third branch (8) is provided with a second electromagnetic valve (81).

3. A reverse osmosis water purification machine according to claim 2, wherein the first concentrate line (53) is provided with a first flow valve (57), the second concentrate line (64) is provided with a third flow valve (610), and the third branch (8) is provided with a second flow valve (82).

4. A reverse osmosis water purification machine according to claim 1, wherein the secondary RO membrane (62) is smaller in flow and size than the primary RO membrane (51).

5. A reverse osmosis water purification machine according to claim 1, wherein the pressure in the first line (66) is higher than the pressure in the second line (67).

6. A reverse osmosis water purification machine according to claim 1, wherein the pre-filter comprises a first filter (21), a second filter (22) and a third filter (23) which are arranged in sequence, the filter element of the first filter (21) is made of PP cotton, and the filter elements of the second filter (22) and the third filter (23) are made of CTO activated carbon.

7. A reverse osmosis water purification machine according to claim 1, wherein the filter element of the post filter (56) is provided as activated carbon.

8. A reverse osmosis water purification machine according to claim 1, wherein the first solenoid valve (7), the second solenoid valve (81), the third solenoid valve (61) and the fourth solenoid valve (69) are all arranged as one-way valves.