CN101935109A - Fine desalination duplicate bed - Google Patents
Fine desalination duplicate bed Download PDFInfo
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- CN101935109A CN101935109A CN2009103037914A CN200910303791A CN101935109A CN 101935109 A CN101935109 A CN 101935109A CN 2009103037914 A CN2009103037914 A CN 2009103037914A CN 200910303791 A CN200910303791 A CN 200910303791A CN 101935109 A CN101935109 A CN 101935109A
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Abstract
The invention discloses a fine desalination duplicate bed which can solve the problem of cross contamination in the regeneration of a mixed bed. The duplicate bed comprises a cation bed and an anion bed, and the water outlet pipe of the cation bed is communicated with the water inlet pipe of the anion bed. The barrel body of the cation bed is internally provided with a water inlet device, a first strong acid resin layer, a perforated plate hydrophobic device, a polystyrene-divinybenzene copolymer packing layer, a second strong acid resin layer and a drain device in sequence from top to bottom, and the top of the barrel body is provided with an exhaust device. The barrel body of the anion bed is internally provided with a water inlet device, a first strong base resin layer, a perforated plate hydrophobic device, a polystyrene-divinybenzene copolymer packing layer, a second strong base resin layer and a drain device in sequence from top to down, and the top of the barrel body is provided with an exhaust device. The water after the pre-desalination enters from the water inlet of the cation bed, and then enters the anion bed after exchanging ions with the strong acid resin to perform the ion exchange with the strong base resin, thereby achieving the purpose of fine desalination.
Description
Technical field
The present invention relates to smart water-treating apparatus for desalting, specifically a kind of smart desalination duplicate bed.
Background technology
At present domestic and international smart demineralized water is processed, and nearly all uses a kind of mixed ion exchanger equipment by name, and generally referred to as mixed bed, it is that two kinds of resins of positive and negative are contained in the cylindrical shell.This equipment applied range, the pre-desalination process of ion exchange method, distillation method and reverse osmosis all combine with it usually and carry out smart Demineralized Water Production.But over more than 40 year, though the weak point to this equipment is updated, but also exist following defectives so far, mainly contain: mix bed in regeneration and in service, exist cross-contamination issue when carrying out positive and negative resin isolation and mixing, thereby affect the economy of regeneration of resin degree, effluent characteristics, water production in periodic mode and operation.In order to be beneficial to resin isolation and married operation, all added less the part resin in the cylindrical shell, namely reduced water production in periodic mode, even in order to improve degree of percent regeneration of resin, strengthened regeneration dosage to common about 3 times, but also be difficult to address this problem.Handle for the crystal's de-mineralized water that condenses that water outlet is had relatively high expectations, current complicated resin isolation jar, cloudy regenerating tank, the positive regenerating tank a series of equipment such as (hold tanks of holding concurrently) of all having adopted both at home and abroad, resin is carried out external regeneration (as the technology of U.S. BELCO company), certain effect is arranged after the use, but can't thoroughly solve the problems such as crossed contamination of resin.Present mixed bed regenerative operation is very complicated, and program is many, and the recovery time is long, and each regeneration all needs repeatedly to carry out the compressed air operation (condensed water precision processing system is more complicated) of trouble; During operation regeneration, auxiliary water ratio height, resin loss big (use gel type resin sometimes year proportion of goods damageds reaches 30～50%); For the unit for condensate fine desalting operational system, the water treatment that has also need to be set up preposition sun bed and be waited equipment before mixed bed.
Summary of the invention
Problem to be solved by this invention is to improve for the defective that existing mixed bed exists, and does not have the smart desalination duplicate bed of cross pollution when a kind of regeneration is provided.
The thinking that addresses the above problem is: strong resin and strong alkali resin are placed respectively in the single cylindrical shell, consist of a kind of sun bed and cloudy bed cascaded structure, so just thoroughly solved the mixed fat of resin and cross-contamination issue.
The technical scheme that addresses the above problem is: the smart desalination duplicate bed that provides comprises a sun bed and a cloudy bed, the outlet pipe of sun bed is communicated with the water inlet pipe of cloudy bed, be provided with successively from the top down water feed apparatus, the first strong resin layer, porous plate steam trap connection, Archon packing layer, second strong resin layer and the drainage arrangement in the cylindrical shell of said sun bed, the cylindrical shell top of sun bed is provided with exhaust apparatus; Be provided with successively from the top down water feed apparatus, the first strong alkali resin layer, porous plate steam trap connection, Archon packing layer, second strong alkali resin layer and the drainage arrangement in the cylindrical shell of said cloudy bed, the cylindrical shell top of cloudy bed is provided with exhaust apparatus.The water of the pre-desalination of process enters from the water inlet of sun bed, carries out entering cloudy bed after the ion-exchange with strong resin again, carries out ion-exchange with strong alkali resin, reaches the purpose of smart desalination.
Compare with existing mixed bed technique, there are not the cloudy two kinds of complex operations that resin need to separate and mix of sun in the present invention, thereby does not just have the problem of the mixed fat of resin and cross pollution yet; This device has self-cleaning function and effective contamination resistance, and the resin of not only can having regenerated when namely regenerating can dispose again the fine-particle solid and the broken foreign material such as tiny resin that enter in the resin bed simultaneously, thereby liquid stream evenly, and running resistance is little, and it is big to exert oneself; Adopt single positive resin and negative resin structure, nature can increase the charge weight of resin, and the corresponding total working exchange capacity that has increased again resin has improved water-making ability.Therefore, application of the present invention can make degree of percent regeneration of resin improve, and effluent characteristics is good, the water production in periodic mode height, and low from the water consumption, resin loss is few, and performance driving economy is good, and easy and simple to handle in whole service and regeneration, program is few, and is safe and reliable.For the effluent quality that requires not to be very high, the present invention can replace the preposition sun bed in the condensed water processing to wait equipment.
Description of drawings
Fig. 1 is a structural representation of the present invention.
Fig. 2 is the structure diagram of water feed apparatus arm of the present invention.
Fig. 3 is the part sectioned view at A-A place among Fig. 2.
Embodiment
As shown in Figure 1: sun bed cylindrical shell 1 is provided with the water feed apparatus 2 that links to each other with water inlet pipe 2a (with regeneration time removal waste fluid device public), the first strong resin layer 3 from the top down successively, is with porous plate steam trap connection 4, Archon packing layer 5, the second strong resin layer 6, the water-freeing arrangement 7 of double end water cap 41, the bottom of cylindrical shell 1 is provided with rising pipe 8, cylinder top is provided with gas barrier 9, and gas barrier 9 is provided with vapor pipe 10.Cloudy bed is except the resin bed difference, other structure is identical with the sun bed, that is: cloudy bed cylindrical shell 21 is provided with successively from the top down water feed apparatus 22, the first strong alkali resin layer 23, the porous plate steam trap connection 24 with double end water cap, Archon packing layer 25, the second strong alkali resin layer 26 and the drainage arrangement 27, cylindrical shell 21 bottoms that link to each other with water inlet pipe 22a and is provided with outlet pipe 28, and cylindrical shell 21 tops also are provided with exhaust apparatus 29 and blast pipe 210.Cation bed and anion bed are connected, and namely the outlet pipe 8 of cation bed is communicated with by valve 12 and pipeline 11 with the water inlet pipe 22a of anion bed.
The strong alkali resin of the strong resin of sun bed and cloudy bed is according to different quality and service requirement, and its particle size range can be selected between 0.45～1.25mm, and for the part water treatment, its resin moves high-temperature resistant requirement should be greater than 60 ℃.The first strong resin layer and the first strong alkali resin layer packed in sun bed and cloudy bed cylindrical shell top, in more practical engineering application, its Main Function is to filter and dispose fine-particle solid and the broken foreign material such as tiny resin in the water, and next is only the desalination work of carrying out part.
The drainage arrangement 7 of sun bed and cloudy bed, 27 structure are identical, and generally, sun bed and cloudy drainage arrangement 7,27 is made up of quartz sand thickness 71 and the vaulted porous plate 72 that is positioned at cylinder body bottom.
If the operation flow velocity need to up to 100～120m/h or more than, the drainage arrangement 7,27 of sun bed and cloudy bed can be made up of the porous plate with double speed water cap.Existing double speed water cap can satisfy that liquid flows high-speed cruising from top to down and from lower and requirement that hang down rapid regeneration.
The water cap of the porous plate steam trap connection of sun bed and cloudy bed is a double end water cap 41, and the draining slit of advancing of water cap 41 is vertical slits, and the transverse section in this slit is big trapezoidal in little the inner, outer end, makes broken resin be difficult for being stuck in the slit.
The exhaust apparatus of sun bed and cloudy bed is the screen casing with horizontal annular slot, and the cross section in this slit is big trapezoidal in little the inner, outer end.
Referring to figs. 1 through Fig. 3, sun bed and cloudy water feed apparatus 2,22 structure are identical, by mother manage 201 and arm 202 form, arm 202 is the screen casings with horizontal annular slot 203, the cross section in this slit is big trapezoidal in little the inner, outer end.When making, arm 202 is vertical with mother's pipe 201, it is to be that trapezoidal ring bar 205 consists of by support bar 204 and one by one section fixed thereon, like this, fine-particle solid in the water inlet and the broken foreign material such as tiny resin are difficult for being stuck in the screen pipe opening, are conducive to more guarantee that resin bed has bigger voidage and liquid stream can keep good running status all the time.
The system moisture of this device is for exchange, regeneration, displacement and just washing four processes.Exchange process is: former water enters sun bed by water inlet pipe 2a, and then enters cloudy bed, and the rising pipe 28 of de-mineralized water through cloudy bed bottom of finishing after the ion-exchange flows into outer tanks.Cation bed and anion bed are carried out separately respectively during regeneration, and regenerated liquid and water inlet direction adverse current enter, and namely regenerated liquid enters drainage arrangement by the outlet pipe of cation bed and anion bed respectively, and from bottom to top by each layer, waste liquid is discharged by the top water inlet pipe again.The flow process of replacement process is identical with regenerative process; The flow process of just washing process is identical with exchange process.
Claims (6)
1. a smart desalination is answered bed, it is characterized in that comprising a sun bed and a cloudy bed, the rising pipe of sun bed is communicated with the water inlet pipe of cloudy bed, be provided with water feed apparatus (2) from the top down successively in the cylindrical shell (1) of said sun bed, the first strong resin layer (3), porous plate steam trap connection (4), Archon packing layer (5), the second strong resin layer (6) and water-freeing arrangement (7), the cylindrical shell top of sun bed is provided with gas barrier (9), be provided with water feed apparatus (22) from the top down successively in the cylindrical shell (21) of said cloudy bed, the first strong alkali resin layer (23), porous plate steam trap connection (24), Archon packing layer (25), the second strong alkali resin layer (26) and water-freeing arrangement (27), the cylindrical shell top of cloudy bed is provided with gas barrier (29).
2. smart desalination duplicate bed according to claim 1, the drainage arrangement that it is characterized in that sun bed and cloudy bed is made up of quartz sand thickness (71) and the vaulted porous plate (72) that is positioned at cylinder body bottom.
3. smart desalination duplicate bed according to claim 1 is characterized in that the drainage arrangement of sun bed and cloudy bed is made up of the porous plate with double speed water cap.
4. according to claim 1,2 or 3 described smart desalination duplicate beds, the water feed apparatus that it is characterized in that sun bed and cloudy bed is made up of mother's pipe (201) and arm (202), arm (202) is the screen casing with horizontal annular slot (203), and the cross section in this slit is big trapezoidal in little the inner, outer end.
5. the multiple bed of smart desalination according to claim 4 is characterized in that the water cap of the porous plate steam trap connection of sun bed and cloudy bed is a double end water cap (41), and the draining slit of advancing of water cap (41) is vertical slit, and the transverse section in this slit is big trapezoidal in little the inner, outer end.
6. smart desalination duplicate bed according to claim 5 is characterized in that the exhaust apparatus (9,29) of sun bed and cloudy bed is the screen casing with horizontal annular slot, and the cross section in this slit is big trapezoidal in little the inner, outer end.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009103037914A CN101935109A (en) | 2009-06-29 | 2009-06-29 | Fine desalination duplicate bed |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009103037914A CN101935109A (en) | 2009-06-29 | 2009-06-29 | Fine desalination duplicate bed |
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| CN101935109A true CN101935109A (en) | 2011-01-05 |
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| CN2009103037914A Pending CN101935109A (en) | 2009-06-29 | 2009-06-29 | Fine desalination duplicate bed |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102225813A (en) * | 2011-04-13 | 2011-10-26 | 中国石油化工股份有限公司 | Multi-stage fluidized ion exchange desalination method for recycling biochemical tail water as circulating cooling water |
| CN102838185A (en) * | 2012-09-25 | 2012-12-26 | 山西焦化股份有限公司 | Method and device for preparing desalted water by double-chamber floating bed ion exchange |
| CN104743639A (en) * | 2015-04-15 | 2015-07-01 | 西安净源水处理科技有限公司 | High-efficiency sodium ion exchanger |
| CN112427053A (en) * | 2020-11-05 | 2021-03-02 | 西安热工研究院有限公司 | Device and method for preventing leakage of ion exchange resin of air exhaust pipe |
-
2009
- 2009-06-29 CN CN2009103037914A patent/CN101935109A/en active Pending
Non-Patent Citations (1)
| Title |
|---|
| 孙本达等: "《火力发电厂水处理实用技术问答》", 30 April 2006 * |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102225813A (en) * | 2011-04-13 | 2011-10-26 | 中国石油化工股份有限公司 | Multi-stage fluidized ion exchange desalination method for recycling biochemical tail water as circulating cooling water |
| CN102225813B (en) * | 2011-04-13 | 2013-03-13 | 中国石油化工股份有限公司 | Multi-stage fluidized ion exchange desalination method for recycling biochemical tail water as circulating cooling water |
| CN102838185A (en) * | 2012-09-25 | 2012-12-26 | 山西焦化股份有限公司 | Method and device for preparing desalted water by double-chamber floating bed ion exchange |
| CN102838185B (en) * | 2012-09-25 | 2013-10-09 | 山西焦化股份有限公司 | Method for preparing desalted water by double-chamber floating bed ion exchange |
| CN104743639A (en) * | 2015-04-15 | 2015-07-01 | 西安净源水处理科技有限公司 | High-efficiency sodium ion exchanger |
| CN112427053A (en) * | 2020-11-05 | 2021-03-02 | 西安热工研究院有限公司 | Device and method for preventing leakage of ion exchange resin of air exhaust pipe |
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Application publication date: 20110105 |