CN203683263U - Pretreatment system of reverse osmosis boron removal system - Google Patents
Pretreatment system of reverse osmosis boron removal system Download PDFInfo
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- CN203683263U CN203683263U CN201320712748.5U CN201320712748U CN203683263U CN 203683263 U CN203683263 U CN 203683263U CN 201320712748 U CN201320712748 U CN 201320712748U CN 203683263 U CN203683263 U CN 203683263U
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Abstract
The utility model discloses a pretreatment system of a reverse osmosis boron removal system. The reverse osmosis boron removal system comprises a pretreatment system, a first-stage anti-osmosis system, an intermediate system and a second-stage anti-osmosis system, wherein the pretreatment system comprises a pretreatment water tank, a boosting pump, a security filter and a first-stage high-pressure pump; a first ball valve is arranged between the pretreatment water tank and the boosting pump; a first check valve and a second ball valve are arranged between the boosting pump and the security filter; a third ball valve is arranged between the security filter and the first-stage high-pressure pump; a second check valve and a fourth ball valve are arranged between the first-stage high-pressure pump and the first-stage anti-osmosis system. The pretreatment system aims to guarantee the water inlet requirement of a subsequent reverse osmosis membrane and guarantee the reverse osmosis operation environment through treating raw water, so that the service life of the reverse osmosis membrane is guaranteed.
Description
Technical field
The utility model relates to a kind of seawater desalination system, refers to that especially a kind of reverse osmosis takes off boron system, more specifically relates to the pretreatment system of the de-boron system of a kind of reverse osmosis.
Background technology
Reverse osmosis membrane in seawater desalination system can be removed more than 99% ion in seawater, but the clearance of boron is only had to 80% left and right.This is mainly because the molecular diameter of boric acid is less than the membrane pore size of reverse osmosis membrane, is easy to enter product water by reverse osmosis membrane, causes the clearance of boron lower.Secondly, because boron mainly exists with the form of boric acid in seawater, it is a kind of uncharged protonic acid (electrically weak), can with film on significant part with the form combination of hydrogen bond, be diffused in an identical manner in the solution that ionic concn is low and go with carbonic acid or water.These factors have caused the de-boron efficiency of reverse osmosis system of the prior art lower than mean level (ML).Therefore be necessary to arrange a set of dedicated system and solve this problem.
Applicant has invented a set of this system, and this system comprises pretreatment system, the impermeable system of one-level, intermediate system and the impermeable system of secondary.Wherein, the technical problem that pretreatment system will solve is can pass through the processing to former water, thereby ensure that the water inlet of follow-up reverse osmosis membrane requires and ensure the running environment of reverse osmosis and then the work-ing life of guarantee reverse osmosis membrane.
Utility model content
Given this; for solving the problems of the technologies described above; the purpose of this utility model is to propose the de-boron system of a kind of reverse osmosis; apply this system; can effectively solve the de-inefficient problem of boron in prior art; this system comprises pretreatment system, the impermeable system of one-level, intermediate system and the impermeable system of secondary, and the utility model is intended to protect the pretreatment system of this system.
The technical scheme adopting is:
A pretreatment system for the de-boron system of reverse osmosis, comprises that support, pretreatment water tank, first-stage reverse osmosis system, one-level RO produce water tank, two-stage reverse osmosis system and secondary RO and produce water tank successively; Described pretreatment water tank, first-stage reverse osmosis system, one-level RO produce water tank, two-stage reverse osmosis system and secondary RO product water tank and are communicated with successively also rack-mount by pipeline; Wherein, described support is provided with operation cabinet; Between described pretreatment water tank and first-stage reverse osmosis system, be communicated with successively topping-up pump, cartridge filter and one-level high-pressure pump; Described one-level RO produces water tank and is communicated with respectively a NaOH dosing tank and a Scale inhibitors dosing tank; Described one-level RO produces between water tank and two-stage reverse osmosis system and is communicated with secondary high-pressure pump;
Described first-stage reverse osmosis system is provided with an one-level recycle pump and two first-stage reverse osmosis devices, after two first-stage reverse osmosis devices are connected in parallel, forms loop with one-level recycle pump; The film that described first-stage reverse osmosis device adopts is sea water desaltination RO film;
Described two-stage reverse osmosis system is provided with a secondary recycle pump and a second level reverse osmosis apparatus, and this first-stage reverse osmosis device and secondary recycle pump form loop; Described second level reverse osmosis apparatus is provided with brackish water film;
Described one-level RO produces between water tank and secondary high-pressure pump and is provided with the 5th ball valve, is provided with the 3rd vacuum breaker and the 6th ball valve between secondary high-pressure pump and two-stage reverse osmosis system.
Described pretreatment system comprises above-mentioned pretreatment water tank, topping-up pump, cartridge filter and one-level high-pressure pump, between described pretreatment water tank and topping-up pump, be provided with the first ball valve, between topping-up pump and cartridge filter, be provided with the first vacuum breaker and the second ball valve, between cartridge filter and one-level high-pressure pump, be provided with the 3rd ball valve, between one-level high-pressure pump and first-stage reverse osmosis system, be provided with the second vacuum breaker and the 4th ball valve.
Preferably, described cartridge filter comprises filter housing and filter core, is provided with fixed link in filter core, and fixed link is provided with pillar stiffener, is arranged with successively compressing tablet, spring and pendulum on pillar stiffener, and described compressing tablet tightly suppresses filter core.
The de-boron system of this reverse osmosis is for the de-boron processing of reverse osmosis, enter two-pass reverse osmosis film through first-stage reverse osmosis infiltration water after treatment, simultaneously, at two-pass reverse osmosis film influent side, NaOH, Scale inhibitors dosing tank are set, improve pH value, under alkaline condition (pH=9-10), boric acid and hydroxyl generate B (OH)
4-, B (OH)
4-with negative charge, can not with film on effective constituent form hydrogen bond, thereby reach the object except boron, with this simultaneously, system arranges Scale inhibitors dosing tank, prevents fouling under alkaline condition.The two-stage reverse osmosis system water rate of recovery can reach 85%, and boron decreasing ratio is 95%.Apply this system, can effectively solve the de-inefficient problem of boron in prior art.
The de-boron system of this reverse osmosis adopts the integral type design of support, convenient mobile.Reverse osmosis system adopts antipollution patterns design, in reverse osmosis system, set up recycle pump, in improving system recoveries rate, can improve reverse osmosis system (being one-level, two-stage reverse osmosis system) water inlet flow velocity, improve the dynamics of washing away on film surface, prevent from crossing and precipitating slowly dirty blocking up because of flow velocity, reduce the dirty stifled probability in film surface.Wherein, high-pressure pump adopts variable frequency control, when reducing energy consumption, can effectively protect the reverse osmosis membrane heart.Scale inhibitors dosing adopts interlock secondary high-pressure pump, adds at regular time and quantity.
The pretreatment system of the de-boron system of this reverse osmosis, by adopting pretreatment water tank, topping-up pump, cartridge filter and one-level high-pressure pump, and between them, be provided with vacuum breaker and ball valve, thereby can solve the processing to former water, thereby ensure that the water inlet of follow-up reverse osmosis membrane requires and ensure the running environment of reverse osmosis and then the work-ing life of guarantee reverse osmosis membrane.
Accompanying drawing explanation
In order to be illustrated more clearly in the utility model embodiment or technical scheme of the prior art, to the accompanying drawing of required use in embodiment or description of the Prior Art be briefly described below, apparently, accompanying drawing in the following describes is only embodiment of the present utility model, for those of ordinary skills, do not paying under the prerequisite of creative work, can also obtain according to these accompanying drawings other accompanying drawing.
Fig. 1 is the support that do not have of the de-boron system of this reverse osmosis, separates the structural representation after launching;
Fig. 2 is the main TV structure schematic diagram of the de-standoff integral type of boron system of this reverse osmosis;
Fig. 3 is the backsight structural representation of the integral type of the de-boron system frame of this reverse osmosis;
Fig. 4 is the left TV structure schematic diagram of the de-standoff integral type of boron system of this reverse osmosis;
Fig. 5 is the right TV structure schematic diagram of the de-standoff integral type of boron system of reverse osmosis;
Fig. 6 is the process flow sheet relating to while using the de-boron system of this reverse osmosis;
Fig. 7 is the internal structure schematic diagram of the de-boron system cartridge filter of this reverse osmosis.
Embodiment
Below in conjunction with the accompanying drawing in the utility model embodiment, the technical scheme in the utility model embodiment is clearly and completely described, obviously, described embodiment is only the utility model preferred embodiment, rather than whole embodiment.Based on the embodiment in the utility model, those of ordinary skills are not making the every other embodiment obtaining under creative work prerequisite, all belong to the scope of the utility model protection.
Referring to Fig. 1 to Fig. 5, a kind of reverse osmosis takes off boron system, comprises that successively support 1, pretreatment water tank 2, first-stage reverse osmosis system 3, one-level RO produce water tank 4, two-stage reverse osmosis system 5 and secondary RO and produce water tank 6; Described pretreatment water tank 2, first-stage reverse osmosis system 3, one-level RO produce water tank 4, two-stage reverse osmosis system 5 and secondary RO product water tank 6 and are communicated with successively by pipeline and are arranged on support 1; Wherein, described support 1 is provided with operation cabinet 7; Between described pretreatment water tank 2 and first-stage reverse osmosis system 3, be communicated with successively topping-up pump 8, cartridge filter 9 and one-level high-pressure pump 10; Described one-level RO produces water tank 4 and is communicated with respectively a NaOH dosing tank 11 and a Scale inhibitors dosing tank 12; Described one-level RO produces between water tank 4 and two-stage reverse osmosis system 5 and is communicated with secondary high-pressure pump 13.
Wherein, the pretreatment system of the de-boron system of this reverse osmosis comprises above-mentioned pretreatment water tank, topping-up pump, cartridge filter and one-level high-pressure pump, pretreatment water tank 2 is for depositing former water, topping-up pump 8 is for providing the hydraulic pressure of filtration, under the filteration of cartridge filter, the graininess pollutents such as the suspended substance in former water are held back, the water inlet that ensures follow-up reverse osmosis membrane requires and ensures the running environment of reverse osmosis and then the work-ing life of guarantee reverse osmosis membrane, and one-level, 10,13 of secondary high-pressure pump are moved needed high pressure hydraulic pressure for improving reverse osmosis.
Shown in Figure 7, described cartridge filter 9 comprises filter housing and filter core 91, is provided with fixed link 92 in filter core 91, and fixed link 92 is provided with pillar stiffener 93, on pillar stiffener 93, be arranged with successively compressing tablet 94, spring 95 and pendulum 96, described compressing tablet 94 tightly suppresses filter core 91; Owing to being provided with spring 95 between pendulum 96 and compressing tablet 94, pendulum 96 can down screw, and makes filter core 91 remain sealing, and sealing effectiveness is better than traditional, and the settling time is faster.
Described first-stage reverse osmosis system 3 is provided with after an one- level recycle pump 31 and 32, two first-stage reverse osmosis devices 32 of two first-stage reverse osmosis devices are connected in parallel and forms loop with one-level recycle pump 31.After being connected in parallel, two first-stage reverse osmosis devices 32 are provided with a water-in 33 and three water outlets 34,35,36, wherein water-in 33 and first water outlet 34 form loop with one-level recycle pump 31, second 35 of water outlet arranged outward for dense water, and the 3rd water outlet 36 is communicated with one-level RO and produces water tank 4.This one-level recycle pump 31 is for improving the dynamics of washing away of film wicking surface, reduces the possibility of pollution substance at film surface deposition, avoids film to pollute, and reduces because film pollutes the matting of carrying out, and then reduces running cost and ensure work-ing life of film core.
The film that described first-stage reverse osmosis device 32 adopts is sea water desaltination RO film, and this sea water desaltination RO film comprises desalination layer, supporting layer and basic unit successively.Wherein the main component of desalination layer is crosslinked aromatic polymeric amide, and thickness is 1 μ m, and the main component of supporting layer is polysulfones, and thickness is 45 μ m, and the main component of basic unit is polyester, and its thickness is 100 μ m.This sea water desaltination RO film is used for removing various zwitterions, reduces reverse osmosis water outlet conductivity, adopts the first-stage reverse osmosis system ratio of desalinization of this sea water desaltination RO film to reach 99%, and de-boron rate is 80%, and the rate of recovery is 45%.
Described two-stage reverse osmosis system 5 is provided with a secondary recycle pump 51 and a second level reverse osmosis apparatus 52, and this second level reverse osmosis apparatus 51 forms loop with secondary recycle pump 52.This second level reverse osmosis apparatus 52 is also provided with a water-in 53 and three water outlets 54,55,56, wherein water-in 53 and first water outlet 54 form loop with secondary recycle pump 52,55 RO systems of arranging or can enter next section outward for dense water of second water outlet, the 3rd water outlet 56 is communicated with secondary RO and produces water tank 6.This secondary recycle pump 51 is also the dynamics of washing away for improving film wicking surface, reduces pollution substance in the possibility of film surface deposition, avoids film to pollute, and reduces because film pollutes the matting of carrying out, and then reduces running cost and ensure work-ing life of film core.
The film that described second level reverse osmosis apparatus 52 adopts is brackish water film.This brackish water film operating pressure is lower with respect to sea water desaltination RO film, and operation energy consumption is relatively low.Its major function is under alkaline condition, to produce B (OH) for removing
4-, and then remove boron ion, reach the object of de-boron.In addition, this brackish water film also removes to process all the other residual zwitterions, reduces water outlet conductivity.
Between described pretreatment water tank 2 and topping-up pump 8, be provided with the first ball valve, between topping-up pump 8 and cartridge filter 9, be provided with the first vacuum breaker and the second ball valve, between cartridge filter 9 and one-level high-pressure pump 10, be provided with the 3rd ball valve, between one-level high-pressure pump 10 and first-stage reverse osmosis system 3, be provided with the second vacuum breaker and the 4th ball valve.Ball valve is set can manual operation control, for blocking or connecting.The effect that vacuum breaker is set is to be to guarantee water body directed flow in pipeline and unlikely refluence.
With in like manner above-mentioned, described one-level RO produces between water tank 4 and secondary high-pressure pump 13 and is provided with the 5th ball valve, is provided with the 3rd vacuum breaker and the 6th ball valve between secondary high-pressure pump 13 and two-stage reverse osmosis system 5, is convenient to manual operation control.
The de-boron system of this reverse osmosis can be exclusively used in the de-boron treatment process of two-pass reverse osmosis, carries out successively according to the artwork of Fig. 6.Wherein first-stage reverse osmosis preferably adopts the sea water desaltination dedicated film heart, and ratio of desalinization reaches 99%, and de-boron rate is 80%, and the rate of recovery is 45%; Two-pass reverse osmosis adopts brackish water film, enters two-pass reverse osmosis film, simultaneously through first-stage reverse osmosis infiltration water after treatment, at two-pass reverse osmosis film influent side, NaOH, Scale inhibitors dosing tank are set, improve pH value, under alkaline condition (pH=9-10), boric acid and hydroxyl generate B (OH)
4-, B (OH)
4-with negative charge, can not with film on effective constituent form hydrogen bond, thereby reach the object except boron, with this simultaneously, system arranges Scale inhibitors dosing tank, prevents fouling under alkaline condition.The two-stage reverse osmosis system water rate of recovery can reach 85%, and boron decreasing ratio is 95%.
Through two-pass reverse osmosis desalination water after treatment, will further be delivered to postprocessing working procedures, will regulate hardness, basicity and pH value etc.
The de-boron system of this reverse osmosis adopts the integral type design of support, convenient mobile.Reverse osmosis system adopts antipollution patterns design, in reverse osmosis system, set up recycle pump, in improving system recoveries rate, can improve reverse osmosis system water inlet flow velocity, improve the dynamics of washing away on film surface, prevent from crossing and precipitating slowly dirty blocking up because of flow velocity, reduce the dirty stifled probability in film surface.Wherein, high-pressure pump adopts variable frequency control, when reducing energy consumption, can effectively protect the reverse osmosis membrane heart.Add alkali and regulate pH to adopt online pH monitor cashier's office in a shop by operation, can automatically adjust according to real-time pH value, Scale inhibitors dosing adopts interlock secondary high-pressure pump, adds at regular time and quantity.
It should be noted that in addition first, second described in the de-boron system of this reverse osmosis ... on the ball valve of sequence numbering and vacuum breaker, it all preferably adopts ball valve and the vacuum breaker of same structure and model; Described one-level, the high-pressure pump that secondary high-pressure pump also preferably adopts same structure and model; Described one-level, the recycle pump that secondary recycle pump also preferably adopts same structure and model.
The foregoing is only preferred embodiment of the present utility model; not in order to limit the utility model; all within spirit of the present utility model and principle, any modification of doing, be equal to replacement, improvement etc., within all should being included in protection domain of the present utility model.
Claims (2)
1. a pretreatment system for the de-boron system of reverse osmosis, is characterized in that, the de-boron system of described reverse osmosis comprises that support, pretreatment water tank, first-stage reverse osmosis system, one-level RO produce water tank, two-stage reverse osmosis system and secondary RO and produce water tank successively; Described pretreatment water tank, first-stage reverse osmosis system, one-level RO produce water tank, two-stage reverse osmosis system and secondary RO product water tank and are communicated with successively also rack-mount by pipeline; Wherein, described support is provided with operation cabinet; Between described pretreatment water tank and first-stage reverse osmosis system, be communicated with successively topping-up pump, cartridge filter and one-level high-pressure pump; Described one-level RO produces water tank and is communicated with respectively a NaOH dosing tank and a Scale inhibitors dosing tank; Described one-level RO produces between water tank and two-stage reverse osmosis system and is communicated with secondary high-pressure pump;
Described first-stage reverse osmosis system is provided with an one-level recycle pump and two first-stage reverse osmosis devices, after two first-stage reverse osmosis devices are connected in parallel, forms loop with one-level recycle pump; The film that described first-stage reverse osmosis device adopts is sea water desaltination RO film;
Described two-stage reverse osmosis system is provided with a secondary recycle pump and a second level reverse osmosis apparatus, and this second level reverse osmosis apparatus and secondary recycle pump form loop; Described second level reverse osmosis apparatus is provided with brackish water film;
Described one-level RO produces between water tank and secondary high-pressure pump and is provided with the 5th ball valve, is provided with the 3rd vacuum breaker and the 6th ball valve between secondary high-pressure pump and two-stage reverse osmosis system;
Described pretreatment system comprises above-mentioned pretreatment water tank, topping-up pump, cartridge filter and one-level high-pressure pump, between described pretreatment water tank and topping-up pump, be provided with the first ball valve, between topping-up pump and cartridge filter, be provided with the first vacuum breaker and the second ball valve, between cartridge filter and one-level high-pressure pump, be provided with the 3rd ball valve, between one-level high-pressure pump and first-stage reverse osmosis system, be provided with the second vacuum breaker and the 4th ball valve.
2. the pretreatment system of the de-boron system of a kind of reverse osmosis as claimed in claim 1, it is characterized in that, described cartridge filter comprises filter housing and filter core, in filter core, be provided with fixed link, fixed link is provided with pillar stiffener, on pillar stiffener, be arranged with successively compressing tablet, spring and pendulum, described compressing tablet tightly suppresses filter core.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320712748.5U CN203683263U (en) | 2013-11-12 | 2013-11-12 | Pretreatment system of reverse osmosis boron removal system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320712748.5U CN203683263U (en) | 2013-11-12 | 2013-11-12 | Pretreatment system of reverse osmosis boron removal system |
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| Publication Number | Publication Date |
|---|---|
| CN203683263U true CN203683263U (en) | 2014-07-02 |
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ID=51005195
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201320712748.5U Expired - Fee Related CN203683263U (en) | 2013-11-12 | 2013-11-12 | Pretreatment system of reverse osmosis boron removal system |
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| Country | Link |
|---|---|
| CN (1) | CN203683263U (en) |
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2013
- 2013-11-12 CN CN201320712748.5U patent/CN203683263U/en not_active Expired - Fee Related
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| C14 | Grant of patent or utility model | ||
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| TR01 | Transfer of patent right |
Effective date of registration: 20160224 Address after: 361000 201B room, strong building, industrial zone, Xiamen torch hi tech Zone (Xiangan), Xiangan District, Fujian, Xiamen Patentee after: Xiamen Zhongmin Global Environmental Co., Ltd. Address before: 361000 201A room, strong building, industrial zone, Xiamen torch hi tech Zone (Xiangan), Xiangan District, Fujian, Xiamen Patentee before: XIAMEN ZHONGZHIHAI OCEAN TECHNOLOGY CO., LTD. Patentee before: Xiamen Zhongmin Global Environmental Co., Ltd. |
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| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20140702 Termination date: 20191112 |
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| CF01 | Termination of patent right due to non-payment of annual fee |