CN201825764U - Electric-absorption salt-removing and energy-saving system - Google Patents
Electric-absorption salt-removing and energy-saving system Download PDFInfo
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- CN201825764U CN201825764U CN2010205795568U CN201020579556U CN201825764U CN 201825764 U CN201825764 U CN 201825764U CN 2010205795568 U CN2010205795568 U CN 2010205795568U CN 201020579556 U CN201020579556 U CN 201020579556U CN 201825764 U CN201825764 U CN 201825764U
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Abstract
The utility model discloses an electric-absorption salt-removing and energy-saving system, relating to the field of water treatment, and aiming at solving the problem of larger actual energy consumption in the prior art. The system comprises two groups of electric-absorption modules and an electric energy recovery unit, wherein the two groups of electric-absorption modules enter a regenerative stage and a working stage alternatively; and the electric energy recovery unit is positioned between the two groups of electric-absorption modules, and is used for recovering electric energy stored by the electric-absorption module entering the regenerative stage and charging the recovered electric energy onto the electric-absorption module entering the working stage. The electric-absorption salt-removing and energy-saving system recovers and reutilizes the electric energy released in the prior art, therefore, the actual energy consumption can be greatly reduced and the operating cost can be reduced.
Description
Technical field
The utility model relates to water treatment field, particularly relates to a kind of electro-adsorption demineralization energy conserving system.
Background technology
Along with the development of advancing by leaps and bounds of China's economy, society, the contradiction of the energy and shortage of water resources is increasingly sharpened.
The electro-adsorption water technology is a phenomenon of utilizing the planar water intermediate ion, makes dissolved salt in the water concentrate and realize the new technique of the desalination/desalination of water in the electrode surface enrichment.Its action principle as shown in Figure 1.Contain the former water of all kinds of ionic and enter the passage that forms by the yin, yang electrode, finally flow out from the other end from an end.When former water flows between the yin, yang electrode, owing to be subjected to effect of electric field, ion in the water will be respectively to the electrode migration of oppositely charged, and adsorbed by this electrode, be stored in the formed electrostatic double layer of electrode surface, thereby the concentration of the dissolved salts in the passage is reduced greatly, realize the desalination/desalination of water.
Theoretically, the required energy consumption of the working process of electro-adsorption mainly is to be used for the ionic migration, and in practice, its energy consumption is higher than calculated value far away.
The utility model content
The utility model provides a kind of electro-adsorption demineralization energy conserving system, in order to solve the bigger problem of prior art actual consumption.
A kind of electro-adsorption demineralization energy conserving system that the utility model provides comprises: two groups of electro-adsorption modules alternately enter regeneration stage and working stage; Electric energy reclaims the unit, between described two groups of electro-adsorption modules, reclaims and enters regeneration stage electro-adsorption module institute electric energy stored, and the electric energy that reclaims is charged on the electro-adsorption module that enters working stage.
According to the utility model one preferred embodiment, it is charge-discharge controller that electric energy reclaims the unit, directly is charged to and enters on the working stage electro-adsorption module entering part direct current energy that regeneration stage electro-adsorption module stored.
According to the utility model one preferred embodiment, electric energy reclaims the unit and comprises: controlled inverter feeds back to AC network after entering the direct current energy inversion that regeneration stage electro-adsorption module stored; And controllable rectifying device, the AC energy in the AC network is converted to direct current energy, and is applied on the electro-adsorption module that enters working stage.
According to the utility model one preferred embodiment, it is two-way buck DC/DC changing device that electric energy reclaims the unit, carry out the step-down energy transformation, be charged on the electro-adsorption module that enters working stage entering the part direct current energy that regeneration stage electro-adsorption module stored, and carry out the boost energy conversion, the electro-adsorption module institute electric energy stored that is in the regeneration stage further is charged on the electro-adsorption module that enters working stage.
Further, two-way buck DC/DC changing device comprises: four device for power switching and an inductance; Wherein, first device for power switching is connected with second device for power switching; The 3rd device for power switching is connected with the 4th device for power switching; First device for power switching is connected by inductance with the positive pole of the 3rd device for power switching; The anodal of second device for power switching and the 4th device for power switching directly links to each other; The positive pole of the negative pole of first device for power switching and second device for power switching is connected with one group of electro-adsorption module; The positive pole of the negative pole of the 3rd device for power switching and the 4th device for power switching is connected with another group electro-adsorption module.
In the actual moving process of electro-adsorption demineralization system, find that its actual consumption will be higher than calculated value far away, promptly wasted the energy consumption that can be recycled greatly.Therefore the electric energy recycling that the utility model is discharged prior art can significantly reduce actual consumption, cuts operating costs.
Description of drawings
Fig. 1 is the prior art principle schematic;
Fig. 2 is the system architecture synoptic diagram among the utility model embodiment;
Fig. 3 is the system architecture synoptic diagram in the utility model preferred embodiment;
Fig. 4 is the system architecture synoptic diagram in the utility model preferred embodiment;
Fig. 5 is the system architecture synoptic diagram in the utility model preferred embodiment;
Fig. 6 is the physical circuit figure of two-way buck DC/DC changing device 403 among Fig. 5.
Embodiment
Electro-adsorption work/regenerative process reality promptly is the storage/dispose procedure of electric energy in the prior art, when the electro-adsorption module need be regenerated, with the positive and negative electrode short circuit, the electric energy of its storage is discharged fully, can realize the regeneration of electro-adsorption module.The electro-adsorption demineralization process promptly is the charge and discharge process of ultracapacitor, and in discharge process, electric energy is a kind of waste, and simultaneously initial short circuit electric current is also bigger.The people discovers through utility model, and the electro-adsorption module is a double electrical layers, is equivalent to an electrical condenser, can discharge and recharge, and discharging and recharging of electrostatic double layer is reversible that promptly electric energy has returnability.Therefore, can adopt the alternation of two groups of electro-adsorption modules, pack module when regeneration, another pack module work, the electro-adsorption module that the electrical energy fed that discharges in the time of can be with the electro-adsorption module short circuit that enters the regeneration stage enters working stage is used for work.So both but saves energy made actual consumption reduce, the infringement that can avoid the heavy-current discharge of direct short circuit that equipment is brought again.Below in conjunction with drawings and Examples the utility model is elaborated.
Referring to shown in Figure 2, the system architecture synoptic diagram for the utility model embodiment comprises: 101, the second groups of electro-adsorption modules 102 of first group of electro-adsorption module and the electric energy between two groups of electro-adsorption modules reclaim unit 103.
Wherein, two groups of electro-adsorption modules alternately enter regeneration stage and working stage.
Electric energy reclaims unit 103, reclaims to enter regeneration stage electro-adsorption module institute electric energy stored, and the electric energy that reclaims is charged on the electro-adsorption module that enters working stage.
As seen, though the present embodiment principle is simple, implement easily, cost is lower, has only increased electric energy and has reclaimed unit 103, but can reclaim and be charged on the electro-adsorption module that enters working stage entering regeneration stage electro-adsorption module institute electric energy stored, make that the part electric energy that is released is in the prior art utilized again, therefore low with respect to the prior art energy consumption, and owing to there is charge and discharge process, make the infringement that the heavy-current discharge that can avoid direct short circuit brings equipment.
In order to reach more excellent effect, the utility model also provides preferred embodiment, referring to shown in Figure 3, comprising: 201, the second groups of electro-adsorption modules 202 of first group of electro-adsorption module and the charge-discharge controller between two groups of electro-adsorption modules 203.
Wherein, two groups of electro-adsorption modules alternately enter regeneration stage and working stage.
Charge-discharge controller 203 will enter part direct current energy that regeneration stage electro-adsorption module stored and directly be charged to and enter on the working stage electro-adsorption module, reach balance up to the voltage of two pack modules, can realize the recycling of electric energy.
As seen, though the present embodiment principle is simple, implement easily, cost is lower, only increased charge-discharge controller 203, but can directly be charged to and enter on the working stage electro-adsorption module entering part direct current energy that regeneration stage electro-adsorption module stored, with this continuous cycle alternation operation, make that the part electric energy that is released is in the prior art utilized again, therefore low with respect to the prior art energy consumption, and owing to there is a charge and discharge process, make the infringement that the heavy-current discharge that can avoid direct short circuit brings equipment.
In order to reach more excellent effect, the utility model also provides preferred embodiment.Rectification is that alternating-current is become galvanic process, utilizes the device with unilateral conduction characteristic, can be the current transformation of direction and big or small alternation direct current.Inversion is and the corresponding switching process of rectification that soon low voltage becomes high-voltage, direct current is become the process of alternating-current.Specifically referring to shown in Figure 4, present embodiment comprises: first group of electro-adsorption module 301 and second group of electro-adsorption module 302, the controlled inverter 303 between two groups of electro-adsorption modules, AC network 304 and controllable rectifying device 305.Present embodiment and Fig. 4 are example with a complete switching process all, and promptly first group of electro-adsorption module 301 will be for will enter regeneration stage electro-adsorption module, and the electro-adsorption module of second group of electro-adsorption module 302 for entering working stage so circulates, and repeats no more.
Wherein, two groups of electro-adsorption modules alternately enter regeneration stage and working stage.
Controlled inverter 303 feeds back to AC network 304 after entering the direct current energy inversion that regeneration stage electro-adsorption module stored; And controllable rectifying device 305, the AC energy in the AC network 304 is converted to direct current energy, and is applied on the electro-adsorption module that enters working stage.
As seen, present embodiment has increased controlled inverter 303 and controllable rectifying device 305, and utilize AC network 304 as storage medium, make that the part electric energy that is released is in the prior art utilized again, therefore low with respect to the prior art energy consumption, and owing to there is a charge and discharge process, make the infringement that the heavy-current discharge that can avoid direct short circuit brings equipment.
In order to reach more excellent effect, the utility model also provides preferred embodiment, referring to shown in Figure 5, comprising: 401, the second groups of electro-adsorption modules 402 of first group of electro-adsorption module and the two-way buck DC/DC changing device 403 between two groups of electro-adsorption modules.
Wherein, two groups of electro-adsorption modules alternately enter regeneration stage and working stage.
Two-way buck DC/DC changing device 403, carry out the step-down energy transformation, be charged on the electro-adsorption module that enters working stage entering the part direct current energy that regeneration stage electro-adsorption module stored, and carry out boost energy conversion, the electro-adsorption module institute electric energy stored that is in the regeneration stage farthest is charged on the electro-adsorption module that enters working stage, and further reduces the voltage of the electro-adsorption module that enters the regeneration stage.
More detailed, the physical circuit of two-way buck DC/DC changing device 403 can comprise referring to shown in Figure 6: four device for power switching and an inductance.Two electric capacity are represented two groups of electro-adsorption modules among Fig. 6.
Wherein, the first device for power switching W1 connects with the second device for power switching W2; The 3rd device for power switching W3 connects with the 4th device for power switching W4; The positive pole of the first power switch device W1 spare and the 3rd device for power switching W3 is connected by inductance L; The anodal of the second device for power switching W2 and the 4th device for power switching W4 directly links to each other; The positive pole of the negative pole of the first device for power switching W1 and the second device for power switching W2 is connected with one group of electro-adsorption module C1; The positive pole of the negative pole of the 3rd device for power switching W3 and the 4th device for power switching W4 is connected with another group electro-adsorption module C2.
When the electro-adsorption module C1 in left side regenerated, the electro-adsorption module C2 on right side carried out work; Otherwise when the electro-adsorption module C2 on right side regenerated, the electro-adsorption module C1 in left side carried out work.Middle portion is two-way buck DC/DC changing device.When energy exchange began, the voltage that enters the electro-adsorption module in regeneration stage was voltage rating, and the voltage that carries out the electro-adsorption module of work is zero, and at this moment two-way buck DC/DC changing device carries out the step-down energy transformation.After the balance of voltage of two groups of electro-adsorption modules, the voltage that is in the electro-adsorption module in regeneration stage will be lower than the voltage of the electro-adsorption module that is in working stage, at this moment two-way buck DC/DC changing device carries out the boost energy conversion, the electro-adsorption module institute electric energy stored that is in the regeneration stage farthest is charged on the electro-adsorption module that enters working stage, and further reduces the voltage of the electro-adsorption module that enters the regeneration stage.
As seen, present embodiment has increased two-way buck DC/DC changing device 403, make that the part electric energy that is released is in the prior art utilized again, therefore low with respect to the prior art energy consumption, and owing to there is a charge and discharge process, make the infringement that the heavy-current discharge that can avoid direct short circuit brings equipment.The two-way buck DC/DC changing device 403 of present embodiment has mainly adopted four device for power switching, and not only device for power switching is few, and can reduce the capacity of passive device greatly, thereby reduces the hardware cost of system to greatest extent.The lifting of the output voltage of Controlling System flexibly simultaneously, the technological process that stabilize water is handled.Moreover, can select current control mode, make water treatment procedure more energy-efficient by the control of system.
In specific implementation, in order to satisfy the requirement of system's production technique, adopted the control strategy of constant voltage and current limiting output, promptly Controlling System guarantees that output voltage is constant below the outward current limit.When carrying out energy recovery, the electric energy in the pack module fed back in another pack module go, and can be compatible with the direct supply (constant voltage) of system, give this electro-adsorption module for power supply jointly.Recyclable voltage lower-most point is more than 30% of module voltage.The energy recovery process should be two-way, can carry out alternately between two electro-adsorption pack modules.The single cycle of energy recovery process should be in 20 minutes.
According to Theoretical Calculation, when handling the brine waste of 2000ppm, the theoretical power consumption of electro-adhesion device is 0.14～0.66kWh, but therefore its power consumption has nearly 50～70% energy consumption to be recycled at 1.5～1.8kWh in the actual application.Can reclaim the electric energy more than 50% in theory, actual effect has also reached more than 20%, effectively reduces the processing energy consumption of electro-adhesion device, makes the unit system water power consumption of present electro-adsorption demineralization system reduce to 0.5～1.0kWh/m
3About water, also has significant environmental benefit when bringing huge economic benefit.
Can satisfy current demand having used the later electro adsorption technology of the utility model, compare with other technology and have obvious technology and cost advantage.
(1) makes electric energy realize two groups of two-way flows between the electricity adsorption module by converter, and can make the residual voltage of electric adsorption module as far as possible low;
The energy consumption that (2) can reduce electro-adsorption desalination system makes electro adsorption technology really possess the low advantage of operating cost more than 30%;
(3) the direct short circuit discharge of electric adsorption module, electric current is bigger, can significantly increase construction investment, has therefore used after the energy recovery, equals to increase precharge/pre-arcing step, can effectively reduce electric current, reduces cost of investment;
(4) operating efficiency of raising system guarantees that Systems balanth efficiently moves.
Obviously, those skilled in the art can carry out various changes and modification to the utility model and not break away from spirit and scope of the present utility model. Like this, if of the present utility model these are revised and modification belongs to the range of the utility model claim and equivalent technologies thereof, then the utility model also is intended to comprise these changes and modification interior.
Claims (5)
1. an electro-adsorption demineralization energy conserving system is characterized in that, comprising:
Two groups of electro-adsorption modules alternately enter regeneration stage and working stage;
Electric energy reclaims the unit, between described two groups of electro-adsorption modules, reclaims and enters regeneration stage electro-adsorption module institute electric energy stored, and the electric energy that reclaims is charged on the electro-adsorption module that enters working stage.
2. electro-adsorption demineralization energy conserving system as claimed in claim 1, it is characterized in that, it is charge-discharge controller that described electric energy reclaims the unit, directly is charged to and enters on the working stage electro-adsorption module entering part direct current energy that regeneration stage electro-adsorption module stored.
3. electro-adsorption demineralization energy conserving system as claimed in claim 1 is characterized in that, described electric energy reclaims the unit and comprises: controlled inverter feeds back to AC network after entering the direct current energy inversion that regeneration stage electro-adsorption module stored; And controllable rectifying device, the AC energy in the AC network is converted to direct current energy, and is applied on the electro-adsorption module that enters working stage.
4. electro-adsorption demineralization energy conserving system as claimed in claim 1, it is characterized in that, it is two-way buck DC/DC changing device that described electric energy reclaims the unit, carry out the step-down energy transformation, be charged on the electro-adsorption module that enters working stage entering the part direct current energy that regeneration stage electro-adsorption module stored; And carry out the boost energy conversion, the electro-adsorption module institute electric energy stored that is in the regeneration stage further is charged on the electro-adsorption module that enters working stage.
5. electro-adsorption demineralization energy conserving system as claimed in claim 4 is characterized in that, described two-way buck DC/DC changing device comprises: four device for power switching and an inductance;
Wherein, first device for power switching is connected with second device for power switching; The 3rd device for power switching is connected with the 4th device for power switching; First device for power switching is connected by inductance with the positive pole of the 3rd device for power switching; The anodal of second device for power switching and the 4th device for power switching directly links to each other; The positive pole of the negative pole of first device for power switching and second device for power switching is connected with one group of electro-adsorption module; The positive pole of the negative pole of the 3rd device for power switching and the 4th device for power switching is connected with another group electro-adsorption module.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010205795568U CN201825764U (en) | 2010-10-28 | 2010-10-28 | Electric-absorption salt-removing and energy-saving system |
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| Application Number | Priority Date | Filing Date | Title |
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| CN2010205795568U CN201825764U (en) | 2010-10-28 | 2010-10-28 | Electric-absorption salt-removing and energy-saving system |
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| CN201825764U true CN201825764U (en) | 2011-05-11 |
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| CN2010205795568U Expired - Lifetime CN201825764U (en) | 2010-10-28 | 2010-10-28 | Electric-absorption salt-removing and energy-saving system |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102030393A (en) * | 2010-10-28 | 2011-04-27 | 常州爱思特净化设备有限公司 | Electro-adsorption desalination energy-saving system and method |
| CN112759042A (en) * | 2020-12-30 | 2021-05-07 | 安徽三江水务工程有限公司 | Industrial wastewater desalting equipment and desalting method using same |
-
2010
- 2010-10-28 CN CN2010205795568U patent/CN201825764U/en not_active Expired - Lifetime
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102030393A (en) * | 2010-10-28 | 2011-04-27 | 常州爱思特净化设备有限公司 | Electro-adsorption desalination energy-saving system and method |
| CN112759042A (en) * | 2020-12-30 | 2021-05-07 | 安徽三江水务工程有限公司 | Industrial wastewater desalting equipment and desalting method using same |
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| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| AV01 | Patent right actively abandoned |
Granted publication date: 20110511 Effective date of abandoning: 20130227 |
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| RGAV | Abandon patent right to avoid regrant |