CN214653810U - Water purifier - Google Patents
Water purifier Download PDFInfo
- Publication number
- CN214653810U CN214653810U CN202023207158.6U CN202023207158U CN214653810U CN 214653810 U CN214653810 U CN 214653810U CN 202023207158 U CN202023207158 U CN 202023207158U CN 214653810 U CN214653810 U CN 214653810U
- Authority
- CN
- China
- Prior art keywords
- water
- pipeline
- waste water
- wastewater
- communicated
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Active
Links
Images
Abstract
The utility model provides a water purifier, include: the reverse osmosis membrane filter element is provided with a water inlet, a pure water outlet and a wastewater outlet; one end of the water inlet pipeline is communicated with the water inlet, and the other end of the water inlet pipeline is suitable for being communicated with a water source; the pure water pipeline is communicated with the pure water outlet; the waste water pipeline comprises a waste water main pipeline communicated with the waste water outlet, a waste water discharge branch pipeline communicated with the waste water main pipeline, and a water return branch pipeline communicated with the waste water main pipeline and the water inlet pipeline; the first wastewater ratio regulating valve is arranged on the wastewater main path; and the second waste water ratio regulating valve is arranged on the waste water discharge branch. The utility model discloses can guarantee that the return water has great return water flow on the return water road on the basis of the return water of realization to waste water and the control of discharge ratio, and then can effectively reduce the rate of recovery of RO membrane under the same condition of complete machine rate of recovery.
Description
Technical Field
The utility model relates to the technical field of household appliances, concretely relates to water purifier.
Background
Most of water purifier systems in the industry at present are simple systems in which a pretreatment unit, a pressure stabilizing pump, a reverse osmosis membrane filter element (namely an RO membrane filter element) and a post-treatment unit are sequentially connected, and the recovery rate of the system is equal to the recovery rate of the reverse osmosis membrane filter element, so that when the recovery rate of the system is improved for saving water, the recovery rate of the reverse osmosis membrane filter element is correspondingly improved, the phenomenon of concentration polarization of the membrane surface is aggravated, and the service life is greatly shortened.
For this reason, current purifier, including the filter unit, be located the water pump in filter unit low reaches, be located the RO membrane in water pump low reaches, respectively with the inlet tube of RO membrane intercommunication, pure water outlet pipe, waste water outlet pipe, and the wet return of intercommunication waste water outlet pipe and inlet tube, through setting up the wet return, can flow back some waste water in the waste water outlet pipe to the water inlet of RO membrane to can be under the unchangeable condition of complete machine rate of recovery, reduce the rate of recovery of RO membrane. In the water purifier, the part of the wastewater outlet pipe on the upstream of the water return pipe is a wastewater main path, the part after being divided by the water return pipe is a wastewater discharge branch path, wastewater discharged by the RO membrane enters the wastewater main path and is then divided into two parts, one part flows back to the water inlet of the RO membrane through the water return pipe, and the other part is discharged through the wastewater discharge branch path. In order to better control the proportion of the waste water, in the water purifier, a water return pipe and a waste water discharge branch are respectively provided with a regulating valve. However, because set up waste water ratio governing valve on the wet return, the aperture of governing valve is the biggest can not be greater than the pipe diameter of installation water pipe, in order to keep certain system water yield, the aperture of the governing valve of selecting usually can be less than the pipe diameter of installation water pipe, and this has just led to the water yield through the wet return reduction to make the reducing effect to the rate of recovery of RO membrane relatively poor.
SUMMERY OF THE UTILITY MODEL
Therefore, the to-be-solved technical problem of the utility model lies in overcoming the relatively poor defect of reducing effect of the purifier among the prior art to the rate of recovery of RO membrane to provide a purifier that can effectively reduce the rate of recovery of RO membrane.
The utility model provides a water purifier, include:
the reverse osmosis membrane filter element is provided with a water inlet, a pure water outlet and a wastewater outlet;
one end of the water inlet pipeline is communicated with the water inlet, and the other end of the water inlet pipeline is suitable for being communicated with a water source;
the pure water pipeline is communicated with the pure water outlet;
the waste water pipeline comprises a waste water main pipeline communicated with the waste water outlet, a waste water discharge branch pipeline communicated with the waste water main pipeline, and a water return branch pipeline communicated with the waste water main pipeline and the water inlet pipeline;
the first wastewater ratio regulating valve is arranged on the wastewater main path;
and the second waste water ratio regulating valve is arranged on the waste water discharge branch.
Optionally, the utility model provides a purifier is still including locating return water branch road, restriction rivers are followed waste water main road flow direction water intake pipe's check valve.
Optionally, the utility model provides a water purifier is still including locating last steady voltage pump of water intake pipe.
Optionally, a communication position of the return water branch and the water inlet pipeline is located at an upstream of the pressure stabilizing pump.
Optionally, the utility model provides a water purifier still includes:
the TDS detection device is arranged on the water inlet pipeline;
and the flowmeter is arranged on the water return branch.
Optionally, the TDS detection device is disposed between the pressure stabilizing pump and the water inlet.
Optionally, the flow meter is provided downstream of the one-way valve.
Optionally, the utility model provides a purifier is still including locating the filter core that hinders dirt on the waste water discharge branch road, it is located to hinder dirt the filter core the second waste water is than the upper reaches of governing valve.
Optionally, the first waste water ratio regulating valve and the second waste water ratio regulating valve are both solenoid valves.
Optionally, the utility model provides a water purifier still includes and carries out primary filter's pretreatment systems to getting into water before the water inlet.
The utility model discloses technical scheme has following effect:
1. the utility model provides a water purifier, include: the reverse osmosis membrane filter element is provided with a water inlet, a pure water outlet and a wastewater outlet; one end of the water inlet pipeline is communicated with the water inlet, and the other end of the water inlet pipeline is suitable for being communicated with a water source; the pure water pipeline is communicated with the pure water outlet; the waste water pipeline comprises a waste water main pipeline communicated with the waste water outlet, a waste water discharge branch pipeline communicated with the waste water main pipeline, and a water return branch pipeline communicated with the waste water main pipeline and the water inlet pipeline; the first wastewater ratio regulating valve is arranged on the wastewater main path; and the second waste water ratio regulating valve is arranged on the waste water discharge branch. The first wastewater ratio regulating valve is arranged on the wastewater main road, and the second wastewater ratio regulating valve is arranged on the wastewater discharge branch road, so that on one hand, the control on the backwater and discharge ratio of wastewater can be realized, on the other hand, the first wastewater ratio regulating valve is arranged on the wastewater main road, and compared with the situation that the first wastewater ratio regulating valve is arranged on the backwater branch road, the aperture of a water through hole can be selected to be larger when the first wastewater ratio regulating valve is in type selection, so that on the basis of realizing the control on the backwater and discharge ratio of wastewater, the backwater branch road is ensured to have larger backwater flow, and further, the recovery rate of an RO membrane can be effectively reduced under the condition that the recovery rate of the whole machine is the same; simultaneously, the aperture selection of the first waste water ratio governing valve water hole is bigger when the model is selected, also can reduce the dirty stifled risk of first waste water ratio governing valve to further guarantee to have great return water flow on the return water branch road. In addition, because the first wastewater ratio regulating valve is arranged on the wastewater main path, compared with the situation that the first wastewater ratio regulating valve is arranged on the return water branch path, the aperture of the water through hole is selected to be larger when the first wastewater ratio regulating valve is in type selection, on one hand, the washing water quantity on the membrane surface of the RO membrane filter element is larger, so that the concentration polarization phenomenon is small, and the service life of the RO membrane filter element is longer; on the other hand, the water inlet flow of the pressure stabilizing pump in front of the RO membrane filter element is larger, so that the pressure (namely the system pressure) behind the pump is smaller, the noise of the system and the whole machine can be reduced, and the energy-saving effect can be achieved.
2. The utility model provides a water purifier still includes: the TDS detection device is arranged on the water inlet pipeline; and the flowmeter is arranged on the water return branch. Therefore, the return water flow can be flexibly adjusted according to the demand condition of the TDS.
3. The utility model provides a purifier is still including locating the filter core that hinders dirt on the waste water discharge branch road, it is located to hinder dirt the filter core second waste water is than the upper reaches of governing valve. Can effectively avoid like this because the too high second waste water that leads to of TDS of waste water has the problem of plug pollution than the governing valve to can reduce the risk that second waste water is invalid than the governing valve.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the embodiments or the technical solutions in the prior art will be briefly described below, and it is obvious that the drawings in the following description are some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to these drawings without creative efforts.
Fig. 1 is a schematic view of a partial structure of a water purifier according to a first embodiment of the present invention;
FIG. 2 is a schematic view of the water purifier shown in FIG. 1 with a TDS detection device;
FIG. 3 is a schematic view of the water purifier shown in FIG. 1 in a state of being provided with a scale inhibiting filter element;
description of reference numerals:
1-a reverse osmosis membrane filter element, 11-a water inlet, 12-a pure water outlet, 13-a wastewater outlet, 2-a water inlet pipeline, 3-a pure water pipeline, 4-a wastewater main pipeline, 41-a wastewater discharge branch, 42-a water return branch, 51-a first wastewater ratio regulating valve, 52-a second wastewater ratio regulating valve, 61-a one-way valve, 62-a pressure stabilizing pump, a 7-TDS detection device, 8-a flow meter and 9-a scale inhibition filter element.
Detailed Description
The technical solution of the present invention will be described clearly and completely with reference to the accompanying drawings, and obviously, the described embodiments are some, but not all embodiments 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 work belong to the protection scope of the present invention.
Furthermore, the technical features mentioned in the different embodiments of the invention described below can be combined with each other as long as they do not conflict with each other.
As shown in fig. 1-3, the present embodiment provides a water purifier, which includes a reverse osmosis membrane filter element 1, a water inlet pipeline 2, a pure water pipeline 3, and a waste water pipeline.
The reverse osmosis membrane cartridge 1, i.e., an RO membrane cartridge, has a water inlet 11, a pure water outlet 12, and a wastewater outlet 13.
One end of the water inlet pipeline 2 is communicated with the water inlet 11, and the other end of the water inlet pipeline is suitable for being communicated with a water source.
The pure water line 3 communicates with a pure water outlet 12.
The waste water pipeline includes a waste water main path 4 communicated with the waste water outlet 13, a waste water discharge branch path 41 communicated with the waste water main path 4, and a water return branch path 42 communicating the waste water main path 4 with the water inlet pipeline 2.
The first waste water ratio regulating valve 51 is provided on the waste water main path 4.
The second waste water ratio regulating valve 52 is provided on the waste water discharge branch 41.
The pure water yield of the system is W0, the flow rate of the first wastewater ratio regulating valve 51 under the pressure of P1 is a1, the flow rate of the second wastewater ratio regulating valve under the pressure of P2 is a2, the whole wastewater discharge amount of the water purifier is W2, and the return flow rate of the return water branch 42 is W1. The recovery rate requirement of the whole water purifier system is set as d1, the recovery rate of the RO membrane filter core is set as d2, and the following identity can be obtained according to the water path connection form and the flow value parameters:
d1＝W0/(W0+W2)；
d2＝W0/(W0+W1)；
W1+W2＝a1；
a2＝W2；
the above 4 equations are combined to form an equation set, and can be calculated as follows: a1 ═ W0 × 1/d2+1/d 1-2; a2 ═ W0-W0 × d1/d 1; that is, it can be derived from this equation that the flow rate a1 of the first waste water ratio adjusting valve 51 at the pressure of P1 and the flow rate a2 of the second waste water ratio adjusting valve 52 at the pressure of P2. Therefore, the control of the whole recovery rate d1 or the RO membrane recovery rate d2 can be realized by adjusting the flow rate a1 and the flow rate a 2. For example, according to the characteristics of the system and the purpose of achieving long service life of the water purifier system, when the specification requirement of the flow of the whole water purifier is determined, namely when W0 is known, if the recovery rate d1 of the whole water purifier system is required to be more than or equal to 75%, d2 is required to be less than or equal to 35%; if the recovery rate of the whole system is required to be more than 75% and d1 is more than 50%, the recovery rate is required to be more than 50% and d2 is more than 35%; the method has the advantages of ensuring that the high recovery rate of the system can be realized, reducing the self recovery rate of the RO membrane, reducing the concentration polarization of the membrane surface, and improving the flow velocity of the membrane surface, thereby prolonging the replacement period of the filter element and the service life of the whole system.
By arranging the first wastewater ratio regulating valve 51 on the wastewater main path 4 and the second wastewater ratio regulating valve 52 on the wastewater discharge branch path 41, on one hand, the control on the backwater and discharge proportion of the wastewater can be realized, and on the other hand, as the first wastewater ratio regulating valve 51 is arranged on the wastewater main path 4, the first wastewater ratio regulating valve 51 is arranged on the backwater branch path 42 in comparison with the first wastewater ratio regulating valve 51, the aperture of the water through hole can be selected to be larger when the first wastewater ratio regulating valve 51 is in the model selection, so that the backwater flow on the backwater branch path 42 can be ensured to be larger on the basis of realizing the control on the backwater and discharge proportion of the wastewater, and further, the recovery rate of the RO membrane can be effectively reduced under the condition that the recovery rate of the whole machine is the same; meanwhile, the aperture selection of the water hole is larger than that of the regulating valve 51 when the model is selected, and the risk of pollution and blockage of the first wastewater by the regulating valve 51 can be reduced, so that the water return branch 42 can be ensured to have larger water return flow. In addition, because the first wastewater ratio regulating valve 51 is arranged on the wastewater main path 4, compared with the situation that the first wastewater ratio regulating valve 51 is arranged on the water return branch path 42, the aperture of the water through hole is selected to be larger when the first wastewater ratio regulating valve 51 is in type selection, on one hand, the flushing water quantity on the membrane surface of the RO membrane filter element is larger, so that the concentration polarization phenomenon is small, and the service life of the RO membrane filter element is longer; on the other hand, the inflow of the RO membrane filter element front pressure stabilizing pump 62 is larger, so that the pressure after the pump, namely the system pressure, is smaller, the noise of the system and the whole machine can be reduced, and meanwhile, the energy-saving effect can be achieved.
The following table captures a set of comparative experimental data based on the positioning of the first waste water ratio regulating valve 51 on the main waste water path 4 and the first waste water ratio regulating valve 51 on the return water path 42 under the condition that the second waste water ratio regulating valve 52 is positioned on the waste water discharge path 41:
from the above experimental data, under the condition that the water flow rate is similar, the first wastewater ratio regulating valve 51 is arranged on the wastewater main path 4, and compared with the condition that the first wastewater ratio regulating valve 51 is arranged on the water return branch path 42, the water return branch path 42 can have higher pure water flow rate and lower flow attenuation percentage, namely, the water return branch path 42 can have larger water return flow rate, so that under the condition that the recovery rate of the RO membrane is similar, the recovery rate of the whole water purifier is more effectively improved.
In order to prevent water in the water inlet pipeline 2 from directly flowing to the waste water pipeline through the water return branch 42, the water purifier provided by the embodiment further comprises a one-way valve 61 which is arranged on the water return branch 42 and limits water flow to flow from the waste water main path 4 to the water inlet pipeline 2.
The water purifier provided by the embodiment further comprises a pressure stabilizing pump 62 arranged on the water inlet pipeline 2. Wherein, the communication position of the return water branch 42 and the water inlet pipeline 2 is positioned at the upstream of the pressure stabilizing pump 62.
The water purifier provided in this embodiment, as shown in fig. 2, further includes a TDS detection device 7 and a flow meter 8. TDS detection device 7 is located on water inlet line 2. The flow meter 8 is arranged on the water return branch 42. Therefore, the return water flow can be automatically adjusted according to the demand condition of the TDS. The TDS detection device 7 in this embodiment is an automatic detection device.
When the rate of recovery that the system required confirms, first waste water ratio governing valve 51 can set up to adjustable waste water ratio this moment, can add control system, sets for according to the raw water TDS condition of difference promptly the intake pipe 2 in get into the TDS condition automatically regulated backward flow of the aquatic before the RO membrane filter core promptly first waste water ratio governing valve 51's trompil size. Specifically, for example, when the system recovery rate is required to be 75% or more, the amount of reflux can be adjusted as follows: when the probe of the TDS detection device 7 displays that the TDS value of the raw water is more than or equal to 500, the opening of the first wastewater ratio regulating valve 51 is automatically regulated to ensure that the reflux flow is more than or equal to 1L/min and W1 is more than or equal to 1.5L/min, and the detection can be carried out through the flowmeter 8; when the probe of the TDS detection device 7 displays that the TDS value of the raw water is less than 500, the opening of the first wastewater ratio adjusting valve 51 is automatically adjusted to ensure that the reflux flow is more than or equal to 2.5L/min and more than or equal to W1 and more than or equal to 1.5L/min, and the detection can be carried out through the flowmeter 8; when the recovery rate of the system is required to be less than 75%, the reflux amount can be adjusted as follows: when the probe of the TDS detection device 7 displays that the TDS value of the raw water is more than or equal to 500, the opening of the first wastewater ratio regulating valve 51 is automatically regulated to ensure that the reflux flow is more than or equal to 1.5L/min and less than or equal to W1 and less than or equal to 2L/min, and the detection can be carried out through the flowmeter 8; when the probe of the TDS detection device 7 displays that the TDS value of the raw water is less than 500, the opening of the first wastewater ratio adjusting valve 51 is automatically adjusted to ensure that the reflux flow rate is more than or equal to 3/min and more than or equal to W1 and more than or equal to 2.5L/min, and the detection can be carried out through the flowmeter 8.
The TDS detection device 7 in the embodiment is arranged between the pressure stabilizing pump 62 and the water inlet 11. The flow meter 8 is provided downstream of the check valve 61.
The water purifier provided in this embodiment, as shown in fig. 3, further includes a scale inhibiting filter element 9 disposed on the wastewater discharge branch 41, and the scale inhibiting filter element 9 is located upstream of the second wastewater ratio adjusting valve 52. Can effectively avoid like this because the too high second waste water that leads to of TDS of waste water has the problem of plug pollution than the governing valve to can reduce the risk that second waste water is invalid than the governing valve.
The first waste water ratio regulating valve 51 and the second waste water ratio regulating valve 52 in this embodiment are both solenoid valves.
The water purifier provided in this embodiment further includes a pretreatment system for performing primary filtration on the water before entering the water inlet 11. The specific form of the pretreatment system is not limited, for example, the pretreatment system can be a PP cotton followed by an activated carbon filter element, the pretreatment system can also be a composite filter element formed by combining PP cotton and carbon fibers, and the pretreatment system can also be an ultrafiltration membrane filter element and the like.
It should be understood that the above examples are only for clarity of illustration and are not intended to limit the embodiments. Other variations and modifications will be apparent to persons skilled in the art in light of the above description. And are neither required nor exhaustive of all embodiments. And obvious changes and modifications can be made without departing from the scope of the invention.
Claims (11)
1. A water purifier, comprising:
the reverse osmosis membrane filter element (1) is provided with a water inlet (11), a pure water outlet (12) and a wastewater outlet (13);
one end of the water inlet pipeline (2) is communicated with the water inlet (11), and the other end of the water inlet pipeline is suitable for being communicated with a water source;
a pure water pipeline (3) communicated with the pure water outlet (12);
the waste water pipeline comprises a waste water main pipeline (4) communicated with the waste water outlet (13), a waste water discharge branch pipeline (41) communicated with the waste water main pipeline (4), and a water return branch pipeline (42) communicated with the waste water main pipeline (4) and the water inlet pipeline (2);
a first waste water ratio regulating valve (51) provided on the waste water main path (4);
and a second waste water ratio regulating valve (52) arranged on the waste water discharge branch (41).
2. The water purification machine according to claim 1, wherein the first wastewater ratio regulating valve (51) has a larger aperture than the second wastewater ratio regulating valve (52).
3. The water purification machine according to claim 1, further comprising a one-way valve (61) provided on said return branch (42) to limit the flow of water from said main wastewater circuit (4) to said water intake line (2).
4. The water purification machine according to claim 3, further comprising a pressure stabilizing pump (62) arranged on the water inlet pipeline (2).
5. The water purification machine according to claim 4, characterized in that the communication of the return branch (42) with the water intake line (2) is upstream of the pressure stabilization pump (62).
6. The water purifier of claim 4, further comprising:
the TDS detection device (7) is arranged on the water inlet pipeline (2);
and the flowmeter (8) is arranged on the water return branch (42).
7. The water purifier according to claim 6, wherein the TDS detection device (7) is arranged between the pressure stabilizing pump (62) and the water inlet (11).
8. Water purifier according to claim 6, wherein the flow meter (8) is arranged downstream of the non-return valve (61).
9. The water purification machine according to any one of claims 1 to 8, further comprising a scale inhibiting filter element (9) provided on the wastewater discharge branch (41), the scale inhibiting filter element (9) being located upstream of the second wastewater ratio regulating valve (52).
10. Water purifier according to any one of claims 1-8, wherein said first wastewater ratio regulating valve (51) and said second wastewater ratio regulating valve (52) are both solenoid valves.
11. Water purifier according to any one of claims 1-8, further comprising a pre-treatment system for primary filtration of the water before entering the water inlet (11).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202023207158.6U CN214653810U (en) | 2020-12-25 | 2020-12-25 | Water purifier |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202023207158.6U CN214653810U (en) | 2020-12-25 | 2020-12-25 | Water purifier |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN214653810U true CN214653810U (en) | 2021-11-09 |
Family
ID=78503482
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202023207158.6U Active CN214653810U (en) | 2020-12-25 | 2020-12-25 | Water purifier |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN214653810U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112794408A (en) * | 2020-12-25 | 2021-05-14 | 珠海格力电器股份有限公司 | Water purifier |
-
2020
- 2020-12-25 CN CN202023207158.6U patent/CN214653810U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112794408A (en) * | 2020-12-25 | 2021-05-14 | 珠海格力电器股份有限公司 | Water purifier |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN207404966U (en) | Water cleaning systems and water purifier | |
| CN202688115U (en) | Water purifier | |
| CN108975540B (en) | Water purification system and water purifier | |
| CN214653810U (en) | Water purifier | |
| CN205442848U (en) | Water conservation reverse osmosis water purifier | |
| CN110845030A (en) | Water purification system and water purification unit | |
| CN208995240U (en) | Water purification system and water purifier | |
| CN112794408A (en) | Water purifier | |
| CN216377522U (en) | Water purifier | |
| CN216798959U (en) | Water purifier | |
| CN205187941U (en) | Water -saving type reverse osmosis water purifier | |
| CN209178097U (en) | Water purification system and water purifier | |
| CN208995242U (en) | Water purification system and water purifier | |
| CN208995243U (en) | Water purification system and water purifier | |
| CN108975542B (en) | Water purification system and water purifier | |
| CN218089046U (en) | Reverse osmosis water purification system and water purification equipment | |
| CN204918202U (en) | Water purification system and water purifier | |
| CN217323461U (en) | Waterway system with double-TDS probe | |
| CN216808223U (en) | Waterway system with double-TDS probe | |
| CN217323459U (en) | Waterway system with waste water direct discharge pipeline | |
| CN216808233U (en) | Waterway system and water purifier | |
| CN208561913U (en) | Water purification system and water purifier | |
| CN216808227U (en) | Waterway system with wastewater direct discharge pipeline | |
| CN208378583U (en) | Water purification system and water purifier | |
| CN216808234U (en) | Waterway system with double TDS probes |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant |