CN213388056U - Reverse osmosis concentrated water recovery device - Google Patents
Reverse osmosis concentrated water recovery device Download PDFInfo
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- CN213388056U CN213388056U CN202022142693.1U CN202022142693U CN213388056U CN 213388056 U CN213388056 U CN 213388056U CN 202022142693 U CN202022142693 U CN 202022142693U CN 213388056 U CN213388056 U CN 213388056U
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Abstract
The utility model discloses a dense water recovery unit of reverse osmosis, including pretreatment lines, precision filter, reverse osmosis membrane subassembly, high-pressure pump, product water pipeline, connecting line, dense water discharge solenoid valve, circulating pump, discharge control valve, backflow flowmeter and discharge flowmeter, precision filter's water inlet is linked together with pretreatment lines's one end, and reverse osmosis membrane subassembly's water inlet is linked together through first pipeline and precision filter's delivery port, and the high-pressure pump is installed on first pipeline. The utility model discloses, through set up the circulating pump on concentrated water discharge pipeline, concentrated water through the circulating pump after the little pressure boost alright satisfy the pressure demand that reverse osmosis intakes, set up emission control valve and backflow control valve on concentrated water discharge pipeline, through the flow proportion of adjusting backflow control valve and emission control valve, realize the control of rate of recovery, can improve the rate of recovery to about 85% -90% to accord with the advocate of the energy saving and emission reduction of china.
Description
Technical Field
The utility model relates to a dense water treatment technical field, more specifically say, it relates to a dense water recovery unit of reverse osmosis.
Background
The reverse osmosis technology is mature day by day and is widely applied to various fields, the technology is economical and efficient, equipment is simple to operate, the reverse osmosis principle determines that the technology has the defect of restricting the development of the reverse osmosis system, the existing reverse osmosis system generally has the problem of low recovery rate, and under the general condition, the recovery rate of the reverse osmosis system is about 70% -75%, the residual 25% of water needs to be discharged, so that the technology does not accord with the advices of energy conservation and emission reduction in China.
Therefore, a reverse osmosis concentrated water recovery device is provided.
SUMMERY OF THE UTILITY MODEL
Not enough to prior art exists, the utility model aims to provide a dense water recovery unit of reverse osmosis, it is through setting up the circulating pump on dense water discharge pipeline, dense water through the circulating pump after the little pressure boost alright satisfy the pressure demand that reverse osmosis intakes, set up emission control valve and backflow control valve on dense water discharge pipeline, flow ratio through adjusting backflow control valve and emission control valve, realize the control of rate of recovery, can improve the rate of recovery to about 85% -90%, thereby accord with the advocate of energy saving and emission reduction of china, with the problem of proposing in solving above-mentioned background art.
In order to achieve the above purpose, the utility model provides a following technical scheme:
a reverse osmosis concentrated water recovery device comprises a pretreatment pipeline, a precision filter, a reverse osmosis membrane assembly, a high-pressure pump, a water production pipeline, a connecting pipeline, a concentrated water discharge electromagnetic valve, a circulating pump, a discharge regulating valve, a backflow flow meter and a discharge flow meter, wherein a water inlet of the precision filter is communicated with one end of the pretreatment pipeline, a water inlet of the reverse osmosis membrane assembly is communicated with a water outlet of the precision filter through a first pipeline, the high-pressure pump is installed on the first pipeline, a water inlet of the high-pressure pump is communicated with a water outlet of the precision filter through the first pipeline, a water outlet of the high-pressure pump is communicated with a water inlet of the reverse osmosis membrane assembly through the first pipeline, one end of the water production pipeline is communicated with a pure water outlet of the reverse osmosis membrane assembly, one end of the connecting pipeline is communicated with a wastewater outlet of the reverse osmosis membrane component, one end of the concentrated water discharge pipeline is communicated with the other end of the connecting pipeline, a second connecting pipeline is connected between the concentrated water discharge pipeline and the connecting pipeline, the concentrated water discharge electromagnetic valve is fixedly arranged on the second connecting pipeline, the circulating pump and the discharge regulating valve are both fixedly arranged on the concentrated water discharge pipeline, a water inlet of the circulating pump is communicated with the connecting pipeline through the concentrated water discharge pipeline, a water outlet of the circulating pump is communicated with a return pipeline through the concentrated water discharge pipeline, one end of the return pipeline is communicated with the concentrated water discharge pipeline, a joint of the return pipeline and the concentrated water discharge pipeline is positioned between the circulating pump and the discharge regulating valve, and one end of the return pipeline, which is far away from the concentrated water discharge pipeline, is communicated with the pretreatment pipeline, the backflow regulating valve and the backflow flowmeter are fixedly installed on the backflow pipeline, the backflow flowmeter is located between the backflow regulating valve and the pretreatment pipeline, the discharge flowmeter is fixedly installed on the concentrated water discharge pipeline, and the discharge flowmeter is located between the discharge regulating valve and the joint of the second connecting pipeline and the concentrated water discharge pipeline.
Through adopting above-mentioned technical scheme, through setting up the circulating pump on concentrated water discharge pipeline, concentrated water alright satisfy the pressure demand that the reverse osmosis intake after the circulating pump pressurizes a little, set up emission control valve and backflow control valve on concentrated water discharge pipeline, through the flow ratio of adjusting backflow control valve and emission control valve, realize the control of rate of recovery, can improve the rate of recovery to about 85% -90% to accord with the advocate of the energy saving and emission reduction of china.
Preferably, the internally mounted of precision filter is 5 um's filter core.
By adopting the technical scheme, the particle impurities with the particle size of more than 5 microns in the water can be removed by using the precision filter, so that the treatment effect of the concentrated water is ensured.
Preferably, a connecting flange is fixedly installed at one end, far away from the precision filter, of the pretreatment pipeline.
Through adopting above-mentioned technical scheme, conveniently pass through flange with in the thick water system of wasting discharge of pretreatment line access.
Preferably, the reverse osmosis membrane subassembly includes two sets of parallelly connected reverse osmosis membrane filters, every group the reverse osmosis membrane filter all includes shell, RO membrane, water inlet joint, pure water outlet joint and waste water outlet joint, the shell is the enclosed construction, the RO membrane slope is installed the inside of shell, the water inlet connects integrative the setting to be in the one end of shell, pure water outlet joint an organic whole sets up the other end of shell, waste water outlet joint an organic whole sets up the bottom of shell.
Through adopting above-mentioned technical scheme, the reverse osmosis membrane subassembly that sets up comprises two sets of parallelly connected reverse osmosis membrane filters, and every reverse osmosis membrane filter of group comprises shell, RO membrane, water inlet joint, pure water outlet joint and waste water outlet joint for reverse osmosis membrane filter's simple structure, be convenient for installation, reverse osmosis filter effect are good.
Preferably, the water inlet joint and the wastewater outlet joint are positioned on one side of the RO membrane, and the pure water outlet joint is positioned on the other side of the RO membrane.
Through adopting above-mentioned technical scheme, can guarantee reverse osmosis membrane filter's reverse osmosis filter effect.
Preferably, the outer shell is a cylindrical shell, and the inner surface of the outer shell is provided with a polytetrafluoroethylene layer.
Through adopting above-mentioned technical scheme, be cylindrical casing with the shell, and be equipped with the polytetrafluoroethylene layer at the internal surface of shell for the difficult adhesion foreign matter of inner wall of shell, thereby guarantee reverse osmosis membrane filter's performance.
To sum up, the utility model discloses mainly have following beneficial effect:
the utility model discloses, through set up the circulating pump on concentrated water discharge pipeline, concentrated water through the circulating pump after the little pressure boost alright satisfy the pressure demand that reverse osmosis intakes, set up emission control valve and backflow control valve on concentrated water discharge pipeline, through the flow proportion of adjusting backflow control valve and emission control valve, realize the control of rate of recovery, can improve the rate of recovery to about 85% -90% to accord with the advocate of the energy saving and emission reduction of china.
Drawings
FIG. 1 is a schematic structural view of a reverse osmosis concentrated water recovery apparatus according to an embodiment;
FIG. 2 is a schematic structural view of a reverse osmosis membrane module according to an embodiment;
fig. 3 is a schematic sectional view of a reverse osmosis membrane module according to an embodiment.
In the figure: 1. pre-treating a pipeline; 2. a precision filter; 3. a high pressure pump; 4. a reverse osmosis membrane module; 401. a housing; 402. an RO membrane; 403. a water inlet connection; 404. a pure water outlet joint; 405. a waste water outlet joint; 5. a water production pipeline; 6. a concentrated water discharge solenoid valve; 7. a circulation pump; 8. a reflux regulating valve; 9. an exhaust regulating valve; 10. a discharge flow meter; 11. a reflux flow meter; 12. a concentrated water discharge pipeline; 13. a return line; 14. a first conduit; 15. connecting a pipeline; 16. a second connecting conduit.
Detailed Description
The present invention will be described in detail with reference to the accompanying drawings 1 to 3.
A reverse osmosis concentrated water recovery device is shown in figure 1 and comprises a pretreatment pipeline 1, a precision filter 2, a reverse osmosis membrane assembly 4, a high-pressure pump 3, a water production pipeline 5, a connecting pipeline 15, a concentrated water discharge pipeline 12, a concentrated water discharge magnetic valve 6, a circulating pump 7, a discharge regulating valve 9, a backflow regulating valve 8, a backflow flow meter 11 and a discharge flow meter 10, wherein a water inlet of the precision filter 2 is communicated with one end of the pretreatment pipeline 1, a water inlet of the reverse osmosis membrane assembly 4 is communicated with a water outlet of the precision filter 2 through a first pipeline 14, the high-pressure pump 3 is installed on the first pipeline 14, a water inlet of the high-pressure pump 3 is communicated with a water outlet of the precision filter 2 through the first pipeline 14, a water outlet of the high-pressure pump 3 is communicated with a water inlet of the reverse osmosis membrane assembly 4 through the first pipeline 14, one end of the water production pipeline 5 is communicated with a pure water outlet of the reverse osmosis membrane component 4, one end of the connecting pipeline 15 is communicated with a wastewater outlet of the reverse osmosis membrane component 4, one end of the concentrated water discharge pipeline 12 is communicated with the other end of the connecting pipeline 15, a second connecting pipeline 16 is further connected between the concentrated water discharge pipeline 12 and the connecting pipeline 15, the concentrated water discharge solenoid valve 6 is fixedly installed on the second connecting pipeline 16, the circulating pump 7 and the discharge regulating valve 9 are both fixedly installed on the concentrated water discharge pipeline 12, a water inlet of the circulating pump 7 is communicated with the connecting pipeline 15 through the concentrated water discharge pipeline 12, a water outlet of the circulating pump 7 is communicated with a return pipeline 13 through the concentrated water discharge pipeline 12, and one end of the return pipeline 13 is communicated with the concentrated water discharge pipeline 12, the junction of return line 13 with dense water discharge line 12 is located circulating pump 7 with between the discharge control valve 9, return line 13 is kept away from dense water discharge line 12 one end with pretreatment pipeline 1 is linked together, return control valve 8 with the equal fixed mounting of backward flow flowmeter 11 is in on the return line 13, backward flow flowmeter 11 is located return control valve 8 with between the pretreatment pipeline 1, discharge flowmeter 10 fixed mounting be in on the dense water discharge line 12, just discharge flowmeter 10 is located discharge control valve 9 with second connecting tube 16 with between the junction of dense water discharge line 12.
Through set up circulating pump 7 on dense water discharge line 12, dense water can satisfy the pressure demand that the reverse osmosis intake after circulating pump 7 pressurizes a little, sets up discharge control valve 9 and flow back regulating valve 8 on dense water discharge line 12, through adjusting the flow ratio of flow back regulating valve 8 and discharge control valve 9, realizes the control of rate of recovery, can improve the rate of recovery to about 85% -90% to accord with the advocate of the energy saving and emission reduction of china.
Specifically, the internally mounted of precision filter 2 has the filter core that the specification is 5 um. The precise filter 2 can be used for removing particle impurities with the particle size of more than 5 mu m in the water, thereby ensuring the treatment effect of the concentrated water.
Specifically, a connecting flange is fixedly installed at one end, far away from the precision filter 2, of the pretreatment pipeline 1. The pretreatment pipeline 1 is conveniently connected into a concentrated water waste discharge system through a connecting flange.
Specifically, as shown in fig. 1-3, reverse osmosis membrane module 4 includes two sets of parallelly connected reverse osmosis membrane filters, and every group reverse osmosis membrane filter all includes shell 401, RO membrane 402, water inlet joint 403, pure water outlet joint 404 and waste water outlet joint 405, shell 401 is the enclosed construction, RO membrane 402 slope is installed the inside of shell 401, water inlet joint 403 is integrative to be set up the one end of shell 401, pure water outlet joint 404 is integrative to be set up the other end of shell 401, waste water outlet joint 405 is integrative to be set up the bottom of shell 401. The reverse osmosis membrane module 4 comprises two sets of parallelly connected reverse osmosis membrane filters, and every reverse osmosis membrane filter of group comprises shell 401, RO membrane 402, water inlet joint 403, pure water outlet joint 404 and waste water outlet joint 405 for reverse osmosis membrane filter's simple structure, be convenient for installation, reverse osmosis filter effect are good.
Specifically, as shown in fig. 2-3, the water inlet connector 403 and the wastewater outlet connector 405 are located on one side of the RO membrane 402, and the pure water outlet connector 404 is located on the other side of the RO membrane 402. Can ensure the reverse osmosis filtering effect of the reverse osmosis membrane filter.
Specifically, as shown in fig. 2, the outer shell 401 is a cylindrical shell, and a polytetrafluoroethylene layer is disposed on an inner surface of the outer shell 401. With shell 401 for cylindrical housing, and be equipped with the polytetrafluoroethylene layer at shell 401's internal surface for shell 401's the difficult adhesion foreign matter of inner wall, thereby guarantee reverse osmosis membrane filter's performance.
The working principle is as follows: the reverse osmosis concentrated water recovery device comprises a pretreatment pipeline 1, a precision filter 2, a reverse osmosis membrane assembly 4, a circulating pump 7, a reverse osmosis flow meter 11, a reverse osmosis membrane discharge pipeline 12, a water production pipeline 5, a reverse osmosis membrane assembly 4, a reverse osmosis membrane assembly and a circulating pump 7, wherein when the reverse osmosis concentrated water recovery device works, pretreated raw water enters the precision filter 2 through the pretreatment pipeline 1, particle impurities with the particle sizes of more than 5 micrometers in the water are removed through the precision filter 2, the raw water is pressurized through the high-pressure pump 3 and then enters the reverse osmosis membrane assembly 4, the concentrated water intercepted by the RO membrane 402 is called as concentrated water, the, the flow control of discharging the governing valve 9 refers to the numerical value that discharges flowmeter 10 and adjusts to the realization is to the return line 13 recovery flow and the control of the discharge flow of dense water discharge line 12, consequently, the utility model discloses both realized the retrieval and utilization of part dense water, improved the rate of recovery, improved the circulation flow of dense water side because the circulating pump, can avoid reverse osmosis membrane subassembly 4 dirty stifled again, through this device, under the good condition of raw water quality, can improve the rate of recovery to about 85% -90%.
The part not involved in the utility model is the same as the prior art or can be realized by adopting the prior art. The present embodiment is only for explaining the present invention, and it is not limited to the present invention, and those skilled in the art can make modifications to the present embodiment without inventive contribution as required after reading the present specification, but all of them are protected by patent laws within the scope of the claims of the present invention.
Claims (6)
1. The utility model provides a dense water recovery unit of reverse osmosis, includes pretreatment line (1), precision filter (2), reverse osmosis membrane subassembly (4), high-pressure pump (3), product water pipeline (5), connecting line (15), dense water discharge line (12), dense water discharge solenoid valve (6), circulating pump (7), discharge control valve (9), backflow control valve (8), backflow flowmeter (11) and discharge flowmeter (10), its characterized in that: the water inlet of the precision filter (2) is communicated with one end of the pretreatment pipeline (1), the water inlet of the reverse osmosis membrane assembly (4) is communicated with the water outlet of the precision filter (2) through a first pipeline (14), the high-pressure pump (3) is installed on the first pipeline (14), the water inlet of the high-pressure pump (3) is communicated with the water outlet of the precision filter (2) through the first pipeline (14), the water outlet of the high-pressure pump (3) is communicated with the water inlet of the reverse osmosis membrane assembly (4) through the first pipeline (14), one end of the water production pipeline (5) is communicated with the pure water outlet of the reverse osmosis membrane assembly (4), one end of the connecting pipeline (15) is communicated with the wastewater outlet of the reverse osmosis membrane assembly (4), one end of the concentrated water discharge pipeline (12) is communicated with the other end of the connecting pipeline (15), the concentrated water discharging pipeline (12) is connected with a second connecting pipeline (16) between the connecting pipelines (15), the concentrated water discharging electromagnetic valve (6) is fixedly installed on the second connecting pipeline (16), the circulating pump (7) and the discharging regulating valve (9) are both fixedly installed on the concentrated water discharging pipeline (12), the water inlet of the circulating pump (7) is communicated with the connecting pipeline (15) through the concentrated water discharging pipeline (12), the water outlet of the circulating pump (7) is communicated with the return pipeline (13) through the concentrated water discharging pipeline (12), one end of the return pipeline (13) is communicated with the concentrated water discharging pipeline (12), and the joint of the return pipeline (13) and the concentrated water discharging pipeline (12) is positioned between the circulating pump (7) and the discharging regulating valve (9), the utility model discloses a dense water treatment device, including return line (13), return flow meter (11), return flow control valve (8), return flow meter (11), return flow control valve (10), discharge flow meter (10) and discharge flow meter (9), second connecting tube (16) with between the junction of dense water discharge pipeline (12), discharge flow meter (10) is located return flow control valve (8) with the one end of dense water discharge pipeline (12) with pretreatment line (1) is linked together, return flow control valve (8) with the equal fixed mounting of return flow meter (11) is in on return line (13), return flow meter (11) are located between return flow control valve (8) and the pretreatment line (1), discharge flow meter (10) fixed mounting be in dense water discharge pipeline (12).
2. A reverse osmosis concentrated water recovery device according to claim 1, wherein: the internally mounted of precision filter (2) has the filter core that the specification is 5 um.
3. A reverse osmosis concentrated water recovery device according to claim 1, wherein: and a connecting flange is fixedly arranged at one end of the pretreatment pipeline (1) far away from the precision filter (2).
4. A reverse osmosis concentrated water recovery device according to claim 1, wherein: reverse osmosis membrane module (4) include two sets of parallelly connected reverse osmosis membrane filters, every group reverse osmosis membrane filter all includes shell (401), RO membrane (402), water inlet joint (403), pure water outlet joint (404) and waste water outlet joint (405), shell (401) are enclosed construction, RO membrane (402) slope is installed the inside of shell (401), water inlet joint (403) an organic whole sets up the one end of shell (401), pure water outlet joint (404) an organic whole sets up the other end of shell (401), waste water outlet joint (405) an organic whole sets up the bottom of shell (401).
5. A reverse osmosis concentrated water recovery device according to claim 4, wherein: the water inlet connection (403) and the wastewater outlet connection (405) are located on one side of the RO membrane (402), and the pure water outlet connection (404) is located on the other side of the RO membrane (402).
6. A reverse osmosis concentrated water recovery device according to claim 4, wherein: the shell (401) is a cylindrical shell, and a polytetrafluoroethylene layer is arranged on the inner surface of the shell (401).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202022142693.1U CN213388056U (en) | 2020-09-25 | 2020-09-25 | Reverse osmosis concentrated water recovery device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202022142693.1U CN213388056U (en) | 2020-09-25 | 2020-09-25 | Reverse osmosis concentrated water recovery device |
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| Publication Number | Publication Date |
|---|---|
| CN213388056U true CN213388056U (en) | 2021-06-08 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN202022142693.1U Active CN213388056U (en) | 2020-09-25 | 2020-09-25 | Reverse osmosis concentrated water recovery device |
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| CN (1) | CN213388056U (en) |
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- 2020-09-25 CN CN202022142693.1U patent/CN213388056U/en active Active
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