CN2294102Y

CN2294102Y - Domestic electro-dialyzing water purifying device

Info

Publication number: CN2294102Y
Application number: CN 97234675
Authority: CN
Inventors: 马力仁
Original assignee: Individual
Current assignee: Individual
Priority date: 1997-05-28
Filing date: 1997-05-28
Publication date: 1998-10-14
Anticipated expiration: 2007-05-28

Abstract

The utility model relates to a domestic electrodialysis pure water device, comprising a mechanical filter (1) and an activated carbon water conditioner (3). The utility model is characterized in that the utility model also comprises electrodialysis plant (2); the mechanical filter (1), the electrodialysis plant (2) and the activated carbon water conditioner (3) are connected into a purified water channel of three stage series connection through pipelines. The utility model is also characterized in that first, the utility model adopts a three stage purifier with different cleaning functions; especially, the utility model adopts the electrodialysis plant, and raw water is completely purified and softened; second, the utility model removes water-solubility impurity in inorganic ion state which can not be removed by the prior art, such as fluoride, calcium ion, magnesium ion, heavy metal ion, nitrite and other hazardous substances; third, the service life of the utility model is long, cost in producing purified water is low and is only one third of the cost in producing RO water, noise and pollution are not generated, and the utility model can produce the purified water whenever the purified water is needed.

Description

Family expenses electrodialysis water purifior

The utility model relates to a kind of water purifier, is specifically related to a kind of household water drinking treating instrument.

Along with the raising of people's living standard, the water quality of household drinking water more and more causes people's attention.Household water filter enters average family in a large number as a kind of drinking water treatment apparatus.In the household water filter product of city's pin, be that mechanical filter adds the active carbon purifying type mostly at present, its structure is connected with the active carbon purifying device by mechanical filter and is constituted.Though this have simple in structurely with the water purifier of gac two-step purification after filtration, cost is low, and advantage easy to use, shortcoming are that decontamination effect improving is bad, can't remove water-soluble inorganic and pollute impurity.

The purpose of this utility model provides the home-use water purifier that a kind of decontamination effect improving is better, cost is low and the life-span is long.

For achieving the above object, the technical solution adopted in the utility model is: a kind of family expenses electrodialysis water purifior, comprise mechanical filter, electrodialysis unit and activated carbon filter, described mechanical filter, electrodialysis unit and activated carbon filter become three grades of placed in-line water purification passages through pipe connection.

In the technique scheme, described mechanical filter, electrodialysis unit and activated carbon filter become three grades of placed in-line water purification passages through pipe connection successively.This most reasonable and best results of water purification channel architecture that connects successively.In the technique scheme, described connection can also be that mechanical filter, activated carbon filter and electrodialysis unit become three grades of placed in-line water purification passages through pipe connection successively.

In the technique scheme, described electrodialysis unit is made up of electrodialyzer and current reversing valve.

Principle of work of the present utility model and working process are: former water (or tap water or phreatic water etc.) makes water quality more approaching natural through tertiary treatment respectively, wherein the mechanical filter effect is that impurity such as particulate colloid, suspended substance in the processed former water are filtered, and the colourity of water and turbidity are improved; Electrodialyzer is to adopt heterogeneous ion-exchange membrane and electrodialytic technique, energy with DC electric field is a motivating force, the Drawing upon heterogeneous ion-exchange membrane is to seeing through the ionic high selectivity in the water, thereby the mineral ion in the freshwater room is assembled in dense hydroecium through ion-exchange membrane, finally removed in the former water part ion attitude impurity (being objectionable impuritiess such as fluorochemical, calcium, magnesium ion and heavy metal ion, nitrite); And the effect of current reversing valve be with electrodialyzer on water outlet, dense water out and electrode switch and match, guaranteeing that electrodialyzer is not switched because of electrode changes water outlet and dense water out, thereby the fresh water passage on the electrodialyzer is communicated with the import of activated carbon filter all the time; Activated carbon filter is the adsorption that utilizes the great specific surface area of gac to be given, and removes chlorine residue, organic pollutant and a series of deleterious mutagen in the former water on the one hand, eliminates peculiar smell in the water on the other hand.

Because the utilization of technique scheme makes the utility model compared with prior art have following advantage:

1. because the utility model adopts the purifier series connection of three grades of different cleaning actions to constitute, especially adopt electrodialysis unit conduct first class purification wherein, compared with prior art obviously decontamination effect improving is much better, particularly removed the water-soluble inorganic impurity in ionized state that prior art can't remove, as objectionable impuritiess such as fluorochemical, calcium, magnesium ion and heavy metal ion, nitrite, certain effect is arranged to keeping HUMAN HEALTH and preventing cancer, calculosis, cardiovascular disorder, digestive system.

2. because the utility model adopts strainer mechanical filter, electrodialysis unit desalination and three grades of not treatment unit series connection of same-action of charcoal absorption, therefore the water quality after water purifior described in the utility model is handled is the drinking water sanitary standard that sensory properties, general chemical index, toxicology and bacteriology index all surpass the GB5749-85 national regulation.In April, 1996, this device through Shanghai City product quality supervision and testing institute check conclusion was:＜1 〉. chloroform, tetracol phenixin, the free chlorine residual decontamination effect improving is remarkable;＜2 〉. oxygen-consumption, dissolved organic carbon clearance height;＜3 〉. the mutagenicity test water inlet is positive +++, after purifying, can reach feminine gender; Every tested project all meets the technical requirements of test basis defined.The survey report numbering: (92) amount is recognized (Shanghai) word (Z0152) number state's quality supervision and is tested word No. 003.

3. because the utility model has adopted wherein single stage desalting refining plant of electrodialysis unit conduct, so work as the coastland in low water season, rivers the salty time of tide occurs because of inwelling, purified water after this device is handled can be removed in the water saline taste basically (as hard water, can remove calcium, magnesium ion equally and soften), really embodied the function that water quality is purified, this also is one of advantage that is different from by general city pin water purifier.In addition, if suitably reduce the pure water flow of described water purifior, its former water demineralizing rate can be up to more than 90%, and highly purified deionized water like this can be made laboratory and some precision instrument or particular requirement apparatus water.

4. noiselessness, pollution-free when the utility model is worked, easy to use, simple to operate with using with doing, reliable operation.

5. the utility model long service life so water producing cost is very little comparatively speaking, only is 1/3rd of a RO water.

Accompanying drawing 1 is the structural representation of the utility model embodiment one;

Accompanying drawing 2 is the structural representation of the utility model embodiment one;

Accompanying drawing 3 is the utility model complete machine structure synoptic diagram;

Accompanying drawing 4 is the utility model mechanical filter structure iron;

Accompanying drawing 5 is the utility model electrodialyzer structural principle synoptic diagram;

Accompanying drawing 6 is the utility model activated carbon filter structure iron;

Accompanying drawing 7 is the structural representation of the utility model embodiment two.

Wherein: [1]. mechanical filter; [2]. electrodialysis unit; [3]. activated carbon filter; [4]. electrodialyzer; [5]. the current reversing valve; [6]. housing; [7]. original water inlet; [8]. wastewater outlet; [9]. the pure water outlet; [10]. reometer; [11]. the reversing valve pilot lamp; [12]. power knob; [13]. power input; [14]. cylindrical shell; [15]. filter core; [16]. cover; [17]. flexible pipe; [18]. flexible pipe; [19]. transformer; [20]. the rectifier bridge heap; [21]. DC commutator; [22]. utmost point hydroecium; [23]. freshwater room; [24]. dense hydroecium; [25]. the limit electrode; [26]. common electrode; [27]. anode membrane; [28]. cavity block; [29]. flexible pipe; [30]. cover; [31]. flexible pipe; [32]. cylindrical shell; [33]. inner bag; [34]. screen cloth; [35]. little coil holder; [36]. gac; [37]. big coil holder; [38]. screen cloth.

Below in conjunction with drawings and Examples the utility model is further described:

Embodiment one: referring to accompanying drawing 1～accompanying drawing 6, a kind of family expenses electrodialysis water purifior, comprise housing [6], mechanical filter [1], electrodialysis unit [2] and activated carbon filter [3], described mechanical filter [1], electrodialysis unit [2] and activated carbon filter [3] are successively through three grades of placed in-line water purification passages of hose connection one-tenth, described mechanical filter [1], electrodialysis unit [2] and activated carbon filter [3] are placed in the housing [6], and its original water inlet [7], wastewater outlet [8] and pure water outlet [9] are stretched out in housing [6].Described mechanical filter [1] is a honeycomb filter, is made up of cylindrical shell [14], cover [16] and filter core [15], and flexible pipe [18] is communicated with original water inlet [7] with the strainer water-in, and flexible pipe [17] is communicated with the water-in of strainer water outlet with electrodialysis unit [2].Described electrodialysis unit [2] is made up of electrodialyzer [4] and current reversing valve [5], electrodialyzer [4] partly is made up of some heterogeneous ion-exchange membranes water stream channel that is assembled into and the DC electric field two that acts on the water stream channel, described heterogeneous ion-exchange membrane is made up of anode membrane [27] and cavity block [28], described water stream channel is by a water-in, utmost point hydroecium [22], dense hydroecium [24], freshwater room [23], utmost point water outlet, water outlet and dense water out constitute, described DC electric field is by power knob [12], transformer [19], rectifier bridge heap [20], reometer [10], DC commutator [21], two limit electrodes [25] and a common electrode [26] constitute, electrodialyzer is the ion that utilizes in the solution, under the effect of DC electric field, move this electrodialysis phenomenon by ion-exchange membrane, make former water in the compartment of electrodialyzer ion migration take place, zwitterion reaches desalination and spissated purpose by anion and cation exchange membrane respectively in the former water.Described current reversing valve [5] is the device that an a kind of end that is exclusively used in the two paths between two water-ins on the valve and two water outlets exchanges, the structure patent applied for of the described current reversing valve of present embodiment [5] is also authorized, the patent No. is ZL95244678.2, September 5 95 year applying date, name is called: electrodialysis current reversing valve, do not describe in detail at this.When electrodialyzer works long hours, if do not switch polarity of electrode, cause " polarization " to lose efficacy because of fouling on the ion-exchange membrane, in order to eliminate electrodeposition, improve the work-ing life of ion-exchange membrane, electrodialyzer must be switched polarity of electrode behind the operation certain hour, and after electrode switches, freshet originally becomes present concentrated stream, concentrated stream originally becomes present freshet, therefore original fresh water mouth and original concentrated water spout must be exchanged, operation is not only inconvenient like this, brings error toward the contact meeting.For addressing this problem, the utility model is combined current reversing valve [5] and DC commutator [21], the employing mode of falling the utmost point that links is carried out polarity of electrode to electrodialyzer and is switched, under the effect of current reversing valve [5], after polarity of electrode was switched, the freshet on the current reversing valve [5] and the outlet of concentrated stream remained unchanged.Described activated carbon filter [3] is made up of cylindrical shell [32], cover [30], inner bag [33], gac [36], little coil holder [35], big coil holder [37], screen cloth [34] and screen cloth [38], activated carbon filter [3] water-in is communicated with the water outlet of current reversing valve [5] in the electrodialysis unit [2] through flexible pipe [31], activated carbon filter [3] water outlet is communicated with pure water outlet [9] through flexible pipe [29], is communicated with wastewater outlet [8] after utmost point water outlet on the described electrodialysis unit [2] and the dense water out parallel connection.Also be provided with two reversing valve pilot lamp [11] on the described housing [6], with the commutation states of indication electrodialysis unit [2], the power supply that electrodialysis unit [2] uses is imported from power input [13].

Embodiment two: referring to accompanying drawing 3～accompanying drawing 7, a kind of family expenses electrodialysis water purifior, comprise mechanical filter [1], electrodialysis unit [2] and activated carbon filter [3], described mechanical filter [1], activated carbon filter [3] and electrodialysis unit [2] become three grades of placed in-line water purification passages through pipe connection successively.Other is with embodiment one.

Claims

1. family expenses electrodialysis water purifior, comprise mechanical filter [1] and activated carbon filter [3], it is characterized in that: also comprise electrodialysis unit [2], described mechanical filter [1], electrodialysis unit [2] and activated carbon filter [3] become three grades of placed in-line water purification passages through pipe connection.

2. water purifior according to claim 1 is characterized in that: described mechanical filter [1], electrodialysis unit [2] and activated carbon filter [3] become three grades of placed in-line water purification passages through pipe connection successively.

3. water purifior according to claim 1 is characterized in that: described mechanical filter [1], activated carbon filter [3] and electrodialysis unit [2] become three grades of placed in-line water purification passages through pipe connection successively.

4. according to claim 1 or 2 or 3 described water purifiors, it is characterized in that: described electrodialysis unit [2] is made up of electrodialyzer [4] and current reversing valve [5].