CN201254501Y - Combined water processing unit - Google Patents

Abstract

Disclosed is a combined water treatment unit, which comprises a unit inner shell body; a dual-surface micropore ceramic filter is arranged at the upper part of an inner cavity of the unit inner shell body; water treatment powder material in loose condition is arranged at the lower part of the inner cavity; a water inlet is arranged in the center; an exhaust device is arranged at the top part thereof; when operating, the raw water flows downwards to the bottom part of the unit inner shell body from the top part of the unit inner shell body along the water inlet, and then flows upwards by baffling; the raw water is firstly pretreated by the water treatment powder material, and then can flow out from the top part of the unit inner shell body after being filtered by the high-precision dual-surface micropore ceramic filter; the gas in the unit inner shell body can be upwards exhausted out through the exhaust device. The combined water treatment unit has the advantages that the water treatment powder material can not harden and block, and can remarkably prolong the service life of the high-precision dual-surface micropore ceramic filter, so as to greatly reduce the washing times; the water treatment unit can adapt to the purification for the low turbidity water and high turbidity water at the same time; the effective utilizing ratio of the water treatment powder material is greatly higher than that of the water treatment grain material; and the microbiological index of the yielded water can be ensured to accord with national standards.

Description

Combined water treatment unit

Affiliated technical field

The present invention relates to technical field of drinking water treatment, relate in particular to a kind of combined water treatment unit.

Background technology

Special water purifier for drinking machine has been the product that generally uses, though it is of a great variety, but structure formation mainly comprises the float-actuated valve of raw water box (also deserving to be called bucket), one or several unit for treating water (being commonly called as filter core), clear water tanks (also claiming following barrel) and control water dispenser bucket median water level etc., and its core is a unit for treating water.Overwhelming majority special water purifier for drinking machine all is provided with absorbing unit and filtering unit.When the sorbing material in the absorbing unit is gac, be commonly called as active carbon filter core, the gac that is adopted is granular carbon.Filtering material in the filtering unit has only when the filtration precision is very high, and good filter effect is just arranged, and effectively the small suspended substances such as bacterium in the filtering water for example adopt high-precision micropore ceramic or hollow fiber ultrafiltration membrane.But high precision material (for example high-precision micropore ceramic or hollow fiber ultrafiltration membrane) is easy to stop up.

There is following deficiency in the active carbon filter core of above-mentioned known technology:

1. the effective rate of utilization of gac is lower

The granular carbon filter core, the part that plays the adsorption cleaning effect mainly concentrates on particulate top layer and nearly top layer, and the adsorption cleaning effect that particulate central part branch plays is very little.One of reason is: the pollutent in the water enters the particulate center by diffusion way needs the time, and velocity of diffusion is usually much smaller than drainage rate; Formerly therefore two be: the small suspended substance (colloid etc.) in the water can be gradually stops up the micropore of activated carbon surface, and after the micropore on top layer stopped up, the remaining adsorption function of granule interior just again can not be brought into play adsorption.In other words, when the granular carbon filter core lost efficacy, the material of particle centre portions may reach the absorption state of saturation far away, causes the effective rate of utilization of gac very low, the waste resource.Particle is big more, and the effective rate of utilization of gac is low more.

Water treatment field is all developing with higher speed every year, and the consumption of gac is also annual all to be increased with higher speed, so, improve effective utilization rate of resource, economize on resources, significant.

2. the granular carbon filter core is relatively poor to the effect in work-ing life that prolongs high precision filtering material in the follow-up water treatment operation.Its major cause is that the main effect of granular carbon filter core is absorption, remove the organism be dissolved in the water, heterochromatic, foreign odor and peculiar smell etc., and its filter effect is very poor, and the small colloid in the water tends to let out from active carbon filter core.

3. for the less gac of particle, the effective rate of utilization of gac is higher relatively, and still, self but stops up easily.In order to prevent that active carbon filter core from stopping up, the order number of gac is generally 10 orders～40 orders.

For the special water purifier for drinking machine that adopts high-precision micropore ceramic, as the patented technology " special water purifier for drinking machine " (patent No. is 200620134452.X) of declaring before me, " special water purifier for drinking machine " (patent No. is 200620008949.7), in this two tops patented technology, all bucket is provided with the very high micropore ceramics of filtering accuracy on water purifier, this micropore ceramics is the finely ground particles (as bacterium, colloid etc.) in the filtering water effectively, reduce water turbidity, make the microbiological indicator of water outlet meet national standard.But a large amount of test-results all show: the high-precision micropore ceramic in the water purifier very easily stops up, and in general, 80～120 liters of tap water of every filtration, micropore ceramics just stop up relatively more seriously, and the drainage flow can not allow the user satisfied.At this moment, micropore ceramics must be taken out, clean or scrub, to recover the strainability of micropore ceramics.Frequent cleaning or scrub, using to the user makes troubles.

In addition, the exhaust structure of the filter core of known technology has:

1. adopt the vapor pipe exhaust that makes progress, as the exhaust structure in the Chinese patent " multifunction combined filter element of water purifier " (patent No. is 200520116399.6).The advantage of this structure is: exhaust is reliable.Its shortcoming is: a. moulding aspect is not too attractive in appearance, and for household product, aesthetic also is vital; B. in the air-flow of discharging, carry the globule or steam bubble sometimes, because vapor pipe is communicated with the gac chamber, sometimes in the vapor pipe even leak pollutent or powder water treatment material in the water outlet, polluted water.

2. adopt the exhaust stop water that comprises exhaust hole and form of film, as the exhaust structure in the Chinese patent " modified version Hydrocone type water purifien " (patent No. is 03209867.7).This exhaust structure is actually a check valve, promptly allows the gas in the filter core upwards to discharge by exhaust hole, does not allow current to flow downward by aperture, and this gas barrier is located at the top of filter core.The advantage of this structure is: the moulding better appearance, the gas in the filter core can be discharged.Its shortcoming is: exhaust is unreliable, and the stopping property that in fact is exactly film and exhaust hole is unreliable.One of its reason is the pollutent of the trim of check valve in sooner or later can connate water; Former two is the film distortion of can wearing out therefore, and both all cause sealing unreliable.

Make absorbing unit can improve the effective rate of utilization of material for water treatment to greatest extent, have again and prolong the function in work-ing life of high precision filtering material in the follow-up water treatment operation, and self can not stop up, in addition, exhaust structure is should exhaust reliable, attractive in appearance again, will guarantee that also material for water treatment can not leak out from gas barrier, to accomplish these simultaneously, also need technical breakthrough.

Summary of the invention

Technical problem to be solved by this invention is to provide a kind of combined water treatment unit at the deficiency of above-mentioned prior art present situation.This combined water treatment unit mainly is used on the special water purifier for drinking machine, also can be used on other similar water purifier, on desk-top or vertical water purifier.

The present invention solves the problems of the technologies described above the technical scheme that is adopted: a kind of combined water treatment unit, it comprises the unit inner housing, the unit inner housing is made up of inner cap and interior body, can be designed to dismountable sealed structure between inner cap and the interior body (is respectively equipped with matching thread as inner cap and interior body, is provided with the sealed structure of sealing-ring between inner cap and the interior body; Inner cap and interior body are respectively equipped with supporting buckle, are provided with the sealed structure of sealing-ring between inner cap and the interior body; Be respectively equipped with flange on inner cap and the interior body, be provided with the sealed structure of sealing-ring etc. between two flanges), also can be designed to not removable formula sealed structure (as welding, bonded structure); The inner chamber top of unit inner housing is provided with two-sided filtering micropore ceramic, and the inner chamber bottom is provided with the powder water treatment material that comprises loose condition (of surface); The unit inner housing has the shape that upper diameter is big, lower diameter is little, and the bigger tabular two-sided filtering micropore ceramic of diameter is convenient to be provided with in top; Tabular two-sided filtering micropore ceramic inside is provided with water stream channel, and the center is provided with the through hole that can allow water inlet pipe therefrom pass, and the upper and lower surface at through hole edge is provided with sealing-ring; The top of described water inlet pipe is provided with outside screw and effluent trough, effluent trough is communicated with the water stream channel of tabular two-sided filtering micropore ceramic inside, the water inlet pipe middle part is provided with the ring flat-plate that can support two-sided filtering micropore ceramic, in the through hole at the web plate center in the water inlet pipe bottom is inserted and is located at bottom the body, water inlet pipe is made up of the core pipe on top and the straight tube of bottom, and adopts interference fit to connect; The center of described inner cap is provided with through hole, and the upper surface at this through hole edge has extended upward short tube, and the medial surface of short tube is provided with internal thread, and this internal thread matches with the outside screw at water inlet pipe top, in cover and also be provided with gas barrier.

The filtering accuracy of described two-sided filtering micropore ceramic is not more than 0.4 micron, and for the small material (as powder water treatment material, bacterium etc.) in the filtering water more reliably, preferred filtering accuracy is not more than 0.15 micron two-sided filtering micropore ceramic.

Described powder water treatment material comprises wherein a kind of of sorbent material and coagulating agent at least.

Described sorbent material comprises wherein a kind of of gac, diatomite, activated alumina and activated magnesia at least.

Described coagulating agent comprises wherein a kind of of Tai-Ace S 150, alum, polymerize aluminum chloride, polyaluminium sulfate, sodium aluminate, iron trichloride, ferrous sulfate, bodied ferric sulfate, magnesiumcarbonate, poly-ferric chloride, gelatine, polyacrylamide, activated silicic acid and sodium alginate at least.Coagulating agent is preferably made sustained release dosage, discharges in water with speed very slowly.

In fact described powder is exactly the very small particle of size, so there is not strictness boundary accurately between powder and the particle, the normal order number that adopts is described particle size in the industry, and particulate order number is big more, and then the particulate size is more little.Generally between 10 orders～40 orders, the order number of the powder water treatment material in the technology of the present invention (comprising Powdered Activated Carbon) is for more than at least 80 orders, more than preferred 200 orders for the granular carbon of using always in the water purifier.

Be provided with in the described gas barrier and comprise the hydrophobic hollow fiber film that is converted into " U " shape, this hollow-fibre membrane adopts caking agent to make it bonding mutually and is adhesively fixed on the inner side-wall of gas barrier housing at the top, the housing of gas barrier is sealedly and fixedly connected with inner cap again; The filtering accuracy of described hollow-fibre membrane is not more than 0.3 micron; The position, air outlet of gas barrier is higher than the water outlet of unit inner housing.Because the hydrophobic hollow fiber film has the characteristic that the water flowing resistance is very big, aeration resistance is very little, so, this gas barrier is the small suspended substance (bacterium etc.) in water, powder water treatment material and the water in the blocking unit inner housing effectively, discharge be clean gas.Because of the position, air outlet of gas barrier is higher than the water outlet of unit inner housing, thereby can avoids the air outlet to be covered by current and cavitation occurs during exhaust, the while has also reduced resistance of exhaust.

During the operation of above-mentioned unit for treating water structure, current flow to the bottom of unit inner housing downwards along water inlet pipe from the top of water inlet pipe, be upward through web plate again, earlier through the powder water treatment material pre-treatment:

1. the organism that is dissolved in the water, heterochromatic, foreign odor, peculiar smell etc. are adsorbed onto in the micropore of sorbent material;

2. with the colloid in water absorption or adhere on the surface of powder water treatment material;

3. coagulation can make the suspended substance in the water take off steady and flocculation, and molecule becomes larger particles, or adheres to or be adsorbed onto on the sorbent material;

4. but the organism in the biological respinse water of decomposition.

Powder water treatment material also is the very big filler of specific surface area, and water purifier was easy to form microbial film at filling surface after operation for some time.In the continuous contact process of former water and microbial film, make nutrition such as organism and nitrogen be absorbed and remove by microbial film.When sorbent material adopts gac, the biological activated carbon effect can occur, and can prolong the work-ing life of gac.

Current are earlier after the powder water treatment material pre-treatment, two-sided filtering micropore ceramic through being located at top filters again, powder water treatment material in the removal water, bacterium etc., upwards discharge from the effluent trough of water inlet pipe top outer at last, the gas in the unit inner housing is upwards discharged by the gas barrier that covers in being located at.

The technology of the present invention has the mechanism of action that prolongs micropore ceramics work-ing life:

The molecule of easy blocking microporous pottery in the water is become larger-size particle, simultaneously fluid-tight grume compactness particle (less and bigger) is become the non-preferably grume fluffiness of water-permeable particle, perhaps with its decomposition.Like this, micropore ceramics just is difficult for stopping up.The sorbent material that is adopted all is the non-preferably grume fluffiness of a water-permeable material, and it promptly in absorption or adhere to when being no more than the colloidalmaterial of some amount, still is the fluffy characteristic of the non-preferably grume of water-permeable in limited work-ing life scope.So, powder water treatment material before inefficacy, even be deposited on the micropore ceramics surface, can blockage phenomenon yet.In other words, after powder water treatment material lost efficacy, micropore ceramics just can stop up gradually, was exactly in filter element life is ended in stopping up appears in micropore ceramics.Domestic consumer is easy to utilize this specific character to judge whether filter core lost efficacy, and this is most important to the normal use that guarantees water purifier.

The further technical measures of the technology of the present invention are: the unit inner housing is located in the cell enclosure body, and the cell enclosure body is made up of enclosing cover and outer body, can be designed to dismountable structure between enclosing cover and the outer body and (be respectively equipped with matching thread as enclosing cover and outer body; Enclosing cover and outer body are respectively equipped with supporting buckle; Be respectively equipped with supporting flange on enclosing cover and the outer body), also can be designed to not removable formula structure (as welding, bonded structure); The outer body bottom is provided with water outlet; The top of enclosing cover is provided with upwardly extending water inlet and takes over, and water inlet is taken over and is provided with sluicing groove and outside screw, and outside screw is used for being connected with the raw water box of place equipment, and the sluicing groove is used for draining the water of raw water box; Venting hole can be established in the top of enclosing cover, also can not establish venting hole; Water inlet is taken over and is communicated with water inlet pipe, and seals by sealing-ring; In the outside of interior body or in the inboard of outer body, be provided with positioning bar, keep appropriate gap between body and the outer body in making, to keep water exit unimpeded.

The main effect of body skin is:

1. improve the outward appearance of compound unit for treating water, make it consistent with top water inlet and this traditional water flow mode of bottom water outlet of common filter core;

2. be tightly connected for enclosing cover and outer body employing, and cover the situation of not establishing venting hole outward, the gas in the inner housing will flow downward along the gap between inner housing and the body skin after gas barrier is discharged, and discharges from the water outlet of outer body bottom at last.For this situation, compound unit for treating water may need bigger power to set up siphonage when starting.After siphonage is set up, drainage power will obviously increase, and water flow can obviously increase, so combined water treatment unit still can normally move.

The beneficial effect of combined water treatment unit of the present invention is:

1. powder water treatment material self can not harden and stop up, and in the work-ing life of energy significant prolongation high precision filtering material, significantly reduces wash number;

2. can the simultaneous adaptation low turbidity water and purifying high-turbidity water;

3. the effective rate of utilization of powder water treatment material is much higher than granular material for water treatment, economizes on resources;

4. the microbiological indicator that can guarantee water outlet meets national standard;

5. domestic consumer is easy to judge whether arrive the work-ing life of filter core.

Description of drawings

Fig. 1 is the embodiment of the invention one structural representation.

Fig. 2 is the core pipe stereographic map among Fig. 1.

Fig. 3 is the inner cap stereographic map among Fig. 1.

Current air-flow synoptic diagram when Fig. 4 is embodiment one operation.

Fig. 5 is the special water purifier for drinking machine structural representation that embodiment one is housed.

Fig. 6 is the embodiment of the invention two structural representations.

Fig. 7 is the core pipe stereographic map among Fig. 6.

Fig. 8 is the enclosing cover stereographic map among Fig. 6.

Embodiment

Describe the present invention below in conjunction with concrete accompanying drawing, but be to be understood that the detailed description does not here constitute limiting the scope of the invention.

Embodiment one: in conjunction with Fig. 1, Fig. 2 and shown in Figure 3, present embodiment comprises the unit inner housing, the unit inner housing is made up of inner cap (16) and interior body (6), is provided with sealing-ring (13) between inner cap (16) and the interior body (6), compresses back inner cap (16) and interior body (6) and can realize being tightly connected; The inner chamber top of unit inner housing is provided with tabular two-sided filtering micropore ceramic (11), and the inner chamber bottom is provided with the powder water treatment material (5) of loose condition (of surface); Body has the shape that upper diameter is big, lower diameter is little in the unit; Tabular two-sided filtering micropore ceramic (11) inside is provided with water stream channel (14), and the center is provided with the through hole that can allow water inlet pipe therefrom pass, and the upper and lower surface at through hole edge is respectively equipped with sealing-ring (15) and sealing-ring (10); The top of described water inlet pipe is provided with outside screw (19) and effluent trough (28), effluent trough (28) is communicated with the water stream channel (14) of tabular two-sided filtering micropore ceramic (11) inside, the water inlet pipe middle part is provided with the ring flat-plate (9) that can support two-sided filtering micropore ceramic (11), insert in the through hole at web plate (2) center that is located at interior body (6) bottom the water inlet pipe bottom, water inlet pipe is made up of the core pipe (47) on top and the straight tube (4) of bottom, and adopting interference fit to connect, web plate (2) is provided with silk screen (3); The center of described inner cap (16) is provided with through hole, the upper surface at this through hole edge has extended upward short tube (18), the medial surface of short tube (18) is provided with internal thread, and this internal thread matches with the outside screw (19) at water inlet pipe top, and inner cap also is provided with gas barrier on (16).

Be provided with in the described gas barrier and comprise the hydrophobic hollow fiber film (26) that is converted into " U " shape, hollow-fibre membrane (26) adopts caking agent (24) to make it bonding mutually and is adhesively fixed on the inner side-wall of gas barrier housing (25) in the end, the housing of gas barrier (25) is sealedly and fixedly connected with the upwardly extending short tube of inner cap (16) (27) again; The filtering accuracy of described hollow-fibre membrane is not more than 0.3 micron; The position, air outlet of gas barrier is higher than the highest point of effluent trough (28).

The unit inner housing is located in the cell enclosure body, and the cell enclosure body is made up of enclosing cover (17) and outer body (7), connects by screw thread (12) between enclosing cover (17) and the outer body (7); The outer body bottom is provided with water outlet (1); The top of enclosing cover (17) is provided with upwardly extending water inlet and takes over (22), and water inlet is taken over (22) and is provided with sluicing groove (21) and outside screw, and outside screw is used for being connected with the raw water box of place equipment, and sluicing groove (21) is used for draining the water of raw water box; The top of enclosing cover (17) is provided with venting hole (23); Water inlet is taken over (22) and is communicated with water inlet pipe, and seals by sealing-ring (20); Be provided with positioning bar (8) in the outside of interior body, the center that makes interior body be positioned at outer body also and between the outer body keeps appropriate gap, thereby keeps water exit unimpeded.

In conjunction with shown in Figure 4, when the compound unit for treating water of present embodiment moves, current are taken over (22) from water inlet and are entered water inlet pipe, flow to the bottom of unit inner housing downwards along water inlet pipe from the top of water inlet pipe, be upward through web plate (2) again, earlier through powder water treatment material (5) pre-treatment, filter through two-sided filtering micropore ceramic (11) again, powder water treatment material (5) in the removal water, bacterium etc., upwards discharge from the effluent trough (28) of water inlet pipe top outer at last, the gas in the unit inner housing is upwards discharged by the gas barrier (50) that covers in being located at.

Fig. 5 is the special water purifier for drinking machine structural representation that embodiment one is housed, in conjunction with shown in Figure 5, this special water purifier for drinking machine comprises raw water box (34), raw water box (34) is assemblied on the bracing frame (35), bracing frame (35) is supported on the clear water tanks (30), clear water tanks (30) bottom is provided with the float-actuated valve (29) in the may command water dispenser bucket, and compound unit for treating water (31) is by nut (33) and sealing-ring (32) the sealing and fixing bottom in raw water box (34).During operation, the former water in the raw water box (34) is stored in the clear water tanks (30) after compound unit for treating water (31) purifies.

Embodiment two: in conjunction with Fig. 6, Fig. 7 and shown in Figure 8, present embodiment is basic identical in configuration aspects and embodiment one, difference is: enclosing cover (40) adopts bonded structure with outer body (42), inner cap (39) adopts bonded structure with interior body (41), also be provided with the short tube (37) of downward extension on the enclosing cover (40), core pipe (38) top is provided with the groove (43) that can adorn O-ring seals (36), core pipe (38) is by the inner side-wall sealing of O-ring seals (36) with short tube (37), other requirement of present embodiment is identical with embodiment one, be provided with upwardly extending water inlet as enclosing cover (40) and take over (48), water inlet is taken over (48) and is provided with sluicing groove (46) and outside screw; Core pipe (38) is provided with outside screw (44) and effluent trough (45), or the like.

It should be noted that at last: above embodiment only in order to the explanation the present invention and and unrestricted technical scheme described in the invention; Therefore, although this specification sheets has been described in detail the present invention with reference to the foregoing description,, those of ordinary skill in the art should be appreciated that still and can make amendment or be equal to replacement the present invention; And all do not break away from the technical scheme and the improvement thereof of the spirit and scope of the present invention, and it all should be encompassed in the claim scope of the present invention.

Claims (10)

1. combined water treatment unit, it comprises the unit inner housing, it is characterized in that:

A. the inner chamber top of unit inner housing is provided with tabular two-sided filtering micropore ceramic, and the inner chamber bottom is provided with the powder water treatment material that comprises loose condition (of surface);

B. be provided with down the water inlet pipe that reaches intracavity bottom;

When c. moving, former water earlier through powder water treatment material with from bottom to top water flow mode pre-treatment, again through micropore ceramic filter.

2. combined water treatment unit according to claim 1 is characterized in that: described powder water treatment material comprises wherein a kind of of sorbent material and coagulating agent at least.

3. combined water treatment unit according to claim 2 is characterized in that: described sorbent material comprises wherein a kind of of gac, diatomite, activated alumina and activated magnesia at least.

4. combined water treatment unit according to claim 2 is characterized in that: described coagulating agent comprises wherein a kind of of Tai-Ace S 150, alum, polymerize aluminum chloride, polyaluminium sulfate, sodium aluminate, iron trichloride, ferrous sulfate, bodied ferric sulfate, magnesiumcarbonate, poly-ferric chloride, gelatine, polyacrylamide, activated silicic acid and sodium alginate at least.

5. combined water treatment unit according to claim 1 is characterized in that: the filtering accuracy of described two-sided filtering micropore ceramic is not more than 0.4 micron.

6. combined water treatment unit according to claim 1 is characterized in that: the top of described unit inner housing is provided with gas barrier.

7. combined water treatment unit according to claim 6 is characterized in that: described gas barrier comprises hydrophobic hollow fiber.

8. combined water treatment unit according to claim 1, it is characterized in that: described unit inner housing is made up of inner cap that is tightly connected mutually and interior body, the center of inner cap is provided with through hole, the upper surface at this through hole edge has extended upward short tube, this short tube is connected with water inlet pipe by screw thread, water inlet pipe is provided with effluent trough, and effluent trough is communicated with the water stream channel of tabular two-sided filtering micropore ceramic inside.

9. combined water treatment unit according to claim 1 is characterized in that: described unit inner housing is arranged in the cell enclosure body, and the top of cell enclosure body is provided with into water adapter, and the bottom is provided with water outlet, and water inlet is taken over and is communicated with water inlet pipe.

10. combined water treatment unit according to claim 9 is characterized in that: described water inlet is taken over and is provided with the sluicing groove.

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