CN203653348U - High recovery rate reverse osmosis wastewater treatment device - Google Patents
High recovery rate reverse osmosis wastewater treatment device Download PDFInfo
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- CN203653348U CN203653348U CN201320885562.XU CN201320885562U CN203653348U CN 203653348 U CN203653348 U CN 203653348U CN 201320885562 U CN201320885562 U CN 201320885562U CN 203653348 U CN203653348 U CN 203653348U
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Abstract
The utility model relates to a wastewater treatment device, and in particular relates to a high recovery rate reverse osmosis wastewater treatment device which comprises a wastewater collecting tank, a pretreatment filtering device, a high-pressure water pump, a cartridge filter, a reverse osmosis device and a flow-limiting valve, wherein the reverse osmosis device consists of a first-stage reverse osmosis device and a second-stage reverse osmosis device which are connected in series; a concentrate water outlet of the first-stage reverse osmosis device is connected with a water inlet of the second-stage reverse osmosis device; a water outlet of the second-stage reverse osmosis device is connected with the flow-limiting valve; the flow-limiting valve comprises a needle valve A for adjusting the flow, a needle valve B connected in series with the needle valve A and a fixed flow-limiting valve; the needle valve B is connected in parallel to the fixed flow-limiting valve. By adopting the two stages of reverse osmosis devices and the ratio flow-limiting valves for adjusting the flowing speed of the concentrate water, fresh water is subjected to two-stage reverse osmosis backflowing, optimized configuration of water resource is achieved, and the service life of a reverse osmosis film is prolonged.
Description
Technical field
The utility model relates to a kind for the treatment of unit of waste water, relates in particular to a kind of high-recovery reverse osmosis wastewater treatment equipment.
Background technology
Along with scientific and technological progress and development, membrane separation technique is studied widely and explores as a kind of new and high technology is existing in Industrial Wastewater Treatment field, due to its have separation efficiency high, without the feature such as phase transformation, energy-conserving and environment-protective, equipment be simple, easy and simple to handle, make it there is suitable technical superiority in water treatment field, become one of indispensable technology in water treatment field.
In today of water resources growing tension, the membrane separation technique that is recovered as object using waste water recycling and material generally receives domestic and international water treatment person's concern as a kind of novel, efficient water technology, the membrane technique such as ultrafiltration, reverse osmosis means can obtain very high rejection effect under the operational condition of optimizing, concentrated solution can reclaim heavy metal wherein as electrochemical process by appropriate means, penetrating fluid after treatment also can reach the standard of reuse and discharge, has considerable economic benefit.
But membrane separation technique in use also exists some problems, main manifestations is that film pollutes, membrane stability is poor and under high concentration ratio, very easily produce concentration polarization, and the through performance of film is decayed rapidly.And adopt traditional single hop reverse osmosis design, and system recoveries rate is not high, and effluent quality more and more cannot reach demand widely today of high request.
Summary of the invention
Utility model, for the deficiencies in the prior art part, provides a kind of high-recovery reverse osmosis wastewater treatment equipment.
In order to solve above-mentioned technical problem, the utility model is solved by following technical proposals:
A kind of high-recovery reverse osmosis wastewater treatment equipment, comprise wastewater collection pond, pretreatment filtering device, high-pressure hydraulic pump, cartridge filter and reverse osmosis system, described in it, reverse osmosis system is set to first-stage reverse osmosis device and the second level reverse osmosis apparatus of series connection, the dense water out of first-stage reverse osmosis device is connected with the water-in of second level reverse osmosis apparatus, and the water outlet of second level reverse osmosis apparatus connects flow-limiting valve group; Described flow-limiting valve group comprises needle-valve B and the set current limiting valve of connecting for the needle-valve A of adjust flux, with described needle-valve A, and described needle-valve B and described set current limiting valve are arranged in parallel.
As preferably, on the outlet pipe of the fresh water delivery pipe connection pretreatment filtering device of second level reverse osmosis apparatus, on described fresh water delivery pipe, be provided with the needle-valve of capable of regulating flow quantity.Two-pass reverse osmosis fresh water refluxes by this device, enters reverse osmosis unit together with pretreated waste water.
As preferably, the set current limiting valve that the concentrated water discharge pipe of second level reverse osmosis apparatus is connected with the needle-valve of capable of regulating flow quantity and is connected in parallel with it.The dense water of two-pass reverse osmosis discharges by this device.
As preferably, the water outlet of first-stage reverse osmosis connects pure water tank.First-stage reverse osmosis fresh water reclaims, and can be used for production technique etc.
As preferably, described needle-valve A water outlet is connected to described high-pressure hydraulic pump water-in.
This setting is processed the two-pass reverse osmosis fresh water backflow that effluent quality is general again.
In sum, the utlity model has following beneficial effect:
The first-stage reverse osmosis device of series connection and second level reverse osmosis apparatus form multistage reverse osmosis combination, and regulate the ratio flow-limiting valve group of concentrated stream speed, have improved the reaction efficiency of reverse osmosis unit, have realized distributing rationally of water resources.
Because two-pass reverse osmosis is intake as the dense water of first-stage reverse osmosis, two-pass reverse osmosis fresh water effluent quality is general, by by its backflow, strengthen water supply flow and flow velocity, strengthened the scouring capability of face current to dirt, delayed the deposition tendency of impurity on reverse osmosis membrane surface, alleviate the pollution of impurity to reverse osmosis membrane, thereby, overcome the shortcoming that two sections of concentration ratios that two sections of reverse osmosis design bring increase and cause reverse osmosis membrane easily to pollute, effectively extend the work-ing life of reverse osmosis membrane.
Brief description of the drawings
Accompanying drawing 1 is structural representation of the present utility model.
In figure: 1-wastewater collection pond, 2-pretreatment filtering device, 3-high-pressure hydraulic pump (3); 4-cartridge filter, 5-reverse osmosis unit, 6-flow-limiting valve group, 7-pure water tank, 8-first-stage reverse osmosis device (8), 9-second level reverse osmosis apparatus, 10-needle-valve A, 11-needle-valve B(11); 12-set current limiting valve (12).
Embodiment
As shown in Figure 1, a kind of high-recovery reverse osmosis wastewater treatment equipment, comprise wastewater collection pond 1, pretreatment filtering device 2, high-pressure hydraulic pump 3, cartridge filter 4, reverse osmosis system 5, flow-limiting valve group 6, reverse osmosis system 5 is set to first-stage reverse osmosis device 8 and the second level reverse osmosis apparatus 9 of series connection, the dense water out of first-stage reverse osmosis device 8 is connected with the water-in of second level reverse osmosis apparatus 9, and the water outlet of second level reverse osmosis apparatus 9 connects flow-limiting valve group 6.The fresh water delivery pipe of described second level reverse osmosis apparatus 9 connects on the outlet pipe of pretreatment filtering device 2, is provided with the needle-valve A10 of capable of regulating flow quantity on described fresh water delivery pipe, and needle-valve A10 water outlet is connected to high-pressure hydraulic pump 3 water-ins.The concentrated water discharge pipe of described second level reverse osmosis apparatus 9 is connected with the needle-valve B11 of capable of regulating flow quantity and the set current limiting valve 12 being connected in parallel with it.The water outlet of described first-stage reverse osmosis device 8 connects pure water tank 7.
Waste water, after collect in wastewater collection pond 1, filters through pretreatment filtering device 2, removes mechanical impurity, enters reverse osmosis unit 5 by high-pressure hydraulic pump 3 and cartridge filter 4.First enter first-stage reverse osmosis device 8, the fresh water inflow pure water tank 7 that first-stage reverse osmosis device 8 is processed is later collected reuse; The dense water of processing later enters second level reverse osmosis apparatus 9, and the needle-valve A10 that second level reverse osmosis apparatus 9 is processed the capable of regulating flow quantity of fresh water later on fresh water delivery pipe refluxes, and enters reverse osmosis unit 5 with together with waste water after pretreated; Process dense water later discharges after the needle-valve 11 of capable of regulating flow quantity and the set current limiting valve 12 that is connected in parallel with it.
This specific embodiment is only to explanation of the present utility model; it is not to restriction of the present utility model; those skilled in the art are reading after this specification sheets and can make to the present embodiment the amendment that there is no creative contribution as required, but as long as within the scope of claim of the present utility model, are all subject to the protection of patent law.
Claims (5)
1. a high-recovery reverse osmosis wastewater treatment equipment, comprise wastewater collection pond (1), pretreatment filtering device (2), high-pressure hydraulic pump (3), cartridge filter (4) and reverse osmosis system (5), it is characterized in that: described reverse osmosis system (5) is set to first-stage reverse osmosis device (8) and the second level reverse osmosis apparatus (9) of series connection, the dense water out of first-stage reverse osmosis device (8) is connected with the water-in of second level reverse osmosis apparatus (9), and the water outlet of second level reverse osmosis apparatus (9) connects flow-limiting valve group (6); Described flow-limiting valve group (6) comprises the needle-valve A(10 for adjust flux), with described needle-valve A(10) the needle-valve B(11 that connects) and set current limiting valve (12), described needle-valve B(11) and described set current limiting valve (12) be arranged in parallel.
2. high-recovery reverse osmosis wastewater treatment equipment according to claim 1, it is characterized in that: the fresh water delivery pipe of described second level reverse osmosis apparatus (9) connects on the outlet pipe of pretreatment filtering device (2), on described fresh water delivery pipe, be provided with the needle-valve A(10 of capable of regulating flow quantity).
3. high-recovery reverse osmosis wastewater treatment equipment according to claim 2, is characterized in that: the concentrated water discharge pipe of described second level reverse osmosis apparatus (9) is connected with the needle-valve B(11 of capable of regulating flow quantity) and the set current limiting valve (12) that is connected in parallel with it.
4. high-recovery reverse osmosis wastewater treatment equipment according to claim 3, is characterized in that: the water outlet of described first-stage reverse osmosis device (8) is connected with pure water tank (7).
5. high-recovery reverse osmosis wastewater treatment equipment according to claim 4, is characterized in that: described needle-valve A(10) water outlet is connected to described high-pressure hydraulic pump (3) water-in.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320885562.XU CN203653348U (en) | 2013-12-31 | 2013-12-31 | High recovery rate reverse osmosis wastewater treatment device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320885562.XU CN203653348U (en) | 2013-12-31 | 2013-12-31 | High recovery rate reverse osmosis wastewater treatment device |
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| Publication Number | Publication Date |
|---|---|
| CN203653348U true CN203653348U (en) | 2014-06-18 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201320885562.XU Expired - Fee Related CN203653348U (en) | 2013-12-31 | 2013-12-31 | High recovery rate reverse osmosis wastewater treatment device |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114394648A (en) * | 2021-12-29 | 2022-04-26 | 佛山市美的清湖净水设备有限公司 | Waterway system and water purifier |
-
2013
- 2013-12-31 CN CN201320885562.XU patent/CN203653348U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114394648A (en) * | 2021-12-29 | 2022-04-26 | 佛山市美的清湖净水设备有限公司 | Waterway system and water purifier |
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| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20140618 Termination date: 20181231 |
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| CF01 | Termination of patent right due to non-payment of annual fee |