CN101935124B

CN101935124B - Direct drinking fountain capable of sterilizing a reverse osmosis membrane

Info

Publication number: CN101935124B
Application number: CN201010298356XA
Authority: CN
Inventors: 侯贻直
Original assignee: AO Smith Shanghai Water Treatment Products Co Ltd
Current assignee: AO Smith Nanjing Water Treatment Products Co Ltd
Priority date: 2010-09-30
Filing date: 2010-09-30
Publication date: 2012-06-06
Anticipated expiration: 2030-09-30
Also published as: CN101935124A

Abstract

The invention discloses a drinking fountain capable of sterilizing a reverse osmosis membrane directly. In the drinking fountain, the water inlet and outlet of a pressure water barrel are connected with the water inlet of a water pump through a bypass electromagnetic valve; a second water inlet electromagnetic valve is arranged between a 5 mu mPP cotton filter and a front active carbon filter; a third water inlet electromagnetic valve, which is connected with the second water inlet electromagnetic valve and the front active carbon filter in parallel, is arranged between the 5mu mPP cotton filter and a 1 mu mPP cotton filter; and the bypass electromagnetic valve, the second water inlet electromagnetic valve and the third water inlet electromagnetic valve are connected with a controller electrically. The drinking fountain capable of sterilizing the reverse osmosis membrane directly retains three-stage top filtering treatment and can effectively sterilize the reverse osmosis membrane effectively, thereby contributing to the quality of the water produced by the drinking fountain.

Description

A kind of can be to the germ-resistant direct drinking fountain of reverse osmosis membrane

Technical field

Patent of the present invention belongs to family water purification technology field, relates to a kind of reverse osmosis direct drinking machine.

Background technology

The reverse osmosis direct drinking machine is the separation function that utilizes the semipermeability reverse osmosis membrane, and imposing under the situation of certain pressure, through reverse osmosis membrane, the portion water molecule sees through reverse osmosis membrane and flows out, and is pure water with water.Impurity in the water (like inorganic salt, organic salt, mikrobe etc.) concentrates back (being dense water) relatively and flows out.Because most of household reverse osmosis films all adopt the composite package of polymeric amide material; Its resistance to chlorine is relatively poor; The chlorine residue class material that chlorinated lime contains in the tap water is easy to the reverse osmosis membrane oxidation is reduced the strainability of film; So in the pre-treatment of the reverse osmosis direct drinking machine of routine, all can adopt active carbon filter core to adsorb chlorine residue, contain chlorine residue hardly to guarantee the water that gets into reverse osmosis membrane.As everyone knows, gac is the hotbed of bacteria breed, especially in temperature higher summer; The rate of growth of bacterium is surprising, though reverse osmosis membrane has the function of amputation bacterium, corpse of bacterium and cast plastid amass littler (medical circle is called pyrogen or intracellular toxin); After it passes reverse osmosis membrane; Under the effect that receives illumination, bacterium can be brought back to life again, so the problem that reverse osmosis membrane influent side and pure water side all have microbial contamination appears in existing reverse osmosis direct drinking chance.

Summary of the invention

Technical problem to be solved by this invention provide a kind of can be to the germ-resistant direct drinking fountain of reverse osmosis membrane, to solve reverse osmosis membrane by the problem of microbial contamination.

In order to solve the problems of the technologies described above, the present invention adopts following technical scheme:

A kind of can be to the germ-resistant direct drinking fountain of reverse osmosis membrane; Comprise the cotton strainer of 5 μ m PP, preposition activated carbon filter that water pipe successively is connected in series; The cotton strainer of 1 μ m PP, first entering water electromagnetic valve; Water pump, reverse osmosis filter; The pure water outlet of said reverse osmosis filter connects the intake-outlet of pressure water storage barrel, and the intake-outlet of said pressure water storage barrel also connects water tap, and said first entering water electromagnetic valve, water pump all are electrically connected unit; It is characterized in that: the intake-outlet of said pressure water storage barrel also is connected to the water-in of water pump through way solenoid valve on one side; Also be provided with one second entering water electromagnetic valve between cotton strainer of said 5 μ m PP and the preposition activated carbon filter, be provided with and said second entering water electromagnetic valve, the 3rd parallelly connected entering water electromagnetic valve of preposition activated carbon filter between cotton strainer of said 5 μ m PP and the cotton strainer of 1 μ m PP, said bypass SV, second entering water electromagnetic valve, the 3rd entering water electromagnetic valve also are electrically connected unit.

In the reverse osmosis direct drinking machine in the present invention, a water inlet of parallel connection bypass on the preposition activated carbon filter, and the intake-outlet of pressure water storage barrel also is connected to the water-in of water pump through way solenoid valve on one side.In the system water process; Through closing second entering water electromagnetic valve, opening the 3rd entering water electromagnetic valve; Can be with preposition activated carbon filter short circuit; Thereby utilize the chlorine residue in the water that reverse osmosis membrane is carried out sterilization, also can contain a small amount of chlorine residue in the pure water of generation, therefore can effectively solve the microbiological pollution of water purifier.When not making water; Through washing with the pure water of pressure water storage barrel reverse osmosis membrane to anti-penetration water purifier; The tap water that contains chlorine residue of the anti-penetration water purifier that can displace soaks reverse osmosis membrane in the pure water environment when not making water, avoid reverse osmosis membrane by the chlorine residue oxidation and also can reduce various Pollution risks; Especially inorganic salt fouling, thus water quality finally improved.Therefore, the present invention can realize the effective sterilization to reverse osmosis membrane, thereby help improving the system water water quality of direct drinking fountain when keeping three grades of pre-filterings to handle.

Description of drawings

Below in conjunction with accompanying drawing and embodiment the present invention is elaborated:

Fig. 1 is a structural representation of the present invention.

Embodiment

As shown in Figure 1; Of the present invention can be to the germ-resistant direct drinking fountain of reverse osmosis membrane; Comprise the cotton strainer 100 of 5 μ m PP, preposition activated carbon filter 910, first entering water electromagnetic valve 200, second entering water electromagnetic valve 901, the cotton strainer 903 of the 3rd entering water electromagnetic valve 902,1 μ m PP; Water pump 300, reverse osmosis filter 400, pressure water storage barrel 500, post active carbon strainer 600, water tap 700, bypass SV 800, above-mentioned each parts all adopt water pipe to be linked and packed.

Wherein, The water-in of the cotton strainer 100 of 5 μ m PP is connected in the threeway 102 of tap water through two fens ball valves 101; Be connected with low-tension switch 103 on the water outlet of the cotton strainer 100 of 5 μ m PP, this low-tension switch 103 is through 104 fens two-way of threeway, the one tunnel connects second entering water electromagnetic valve 901, another road connects the 3rd entering water electromagnetic valve 902; Second entering water electromagnetic valve 901 connects the water-in of preposition activated carbon filter 910; The water outlet of preposition activated carbon filter 910 and the 3rd entering water electromagnetic valve 902 all are connected the water-in of the cotton strainer 903 of 1 μ m PP through a threeway 904, and the water outlet of the cotton strainer 903 of 1 μ m PP connects the water-in of first entering water electromagnetic valve 200 through vacuum breaker 905, and the water outlet of first entering water electromagnetic valve 200 is again through 201 fens two-way of threeway; One the tunnel connects the water-in of water pump 300, and another road connects vacuum breaker 801.The water outlet of water pump 300 connects the water-in of reverse osmosis filter 400; Connect a waste water proportioner 900 on the wastewater outlet of reverse osmosis filter 400; And in the outlet of the pure water of reverse osmosis filter 400 reverse checkvalve 401 being housed, this reverse checkvalve 401 then connects a high-voltage switch gear 402.And this high-voltage switch gear 402 is through 403 fens two-way of a threeway; One the tunnel connects the pressure pot ball valve 501 on the intake-outlet that pressure goes out bucket 500; Another road then connects post active carbon strainer 600 water-ins, and then also through 601 fens two-way of a threeway, the one tunnel connects bypass SV 800 to the water outlet of post active carbon strainer 600; Another road connects

water tap

700, and 800 of bypass SVs are connected vacuum breaker 801.In addition; Low-tension switch 103, high-voltage switch gear 402, first entering water electromagnetic valve 200, second entering water electromagnetic valve 901, the 3rd entering water electromagnetic valve 903, water pump 300, bypass SV 800 all are connected electrically on the unit (not shown), are controlled by unit.

In the present invention, the 3rd entering water electromagnetic valve 902 is parallelly connected with placed in-line second entering water electromagnetic valve 901 and preposition activated carbon filter 910, promptly directly is connected between cotton strainer 100 of 5 μ m PP and the cotton strainer 903 of 1 μ m PP.

More than be exactly of the present invention can be to the germ-resistant direct drinking fountain of reverse osmosis membrane, its mode of operation is following:

1, generally; Open first entering water electromagnetic valve 200, second entering water electromagnetic valve 901, close the 3rd entering water electromagnetic valve 902, close bypass SV 800; At this moment system water process is the same with direct drinking fountain in the past; Promptly need to filter, just get into the cotton strainer 903 of 1 μ m PP, reverse osmosis filter 400 after the elimination chlorine residue through preposition activated carbon filter 910 from the cotton strainer 100 effusive water of 5 μ m PP.

2, when needs are intake sterilization to reverse osmosis membrane, close second entering water electromagnetic valve 901, open the 3rd entering water electromagnetic valve 902; Make preposition activated carbon filter 910 short circuits promptly directly to get into the cotton strainer 903 of 1 μ m PP, filter to reverse osmosis filter 400 then from the effusive water of the cotton strainer of 5 μ m PP; Wherein owing to do not pass through preposition activated carbon filter 910; Arrive in the water in the reverse osmosis filter 400 and can contain chlorine residue, chlorine residue can be carried out sterilization to reverse osmosis membrane, and also contains chlorine residue in the pure water of final system; Can further carry out sterilization, thereby effectively solve the microbiological pollution of water purifier pressure water storage barrel 500.

3, after system water finishes; Close entering water electromagnetic valve 200, open bypass SV 800, under water pump 300 drives, at this moment; Pure water in the pressure water storage barrel 500 is back in the reverse osmosis filter 400 through post active carbon strainer 600; Reverse osmosis filter 400 is washed, displace the water that contains chlorine residue in the reverse osmosis filter 400, make that finally reverse osmosis filter influent side and water outlet side all are pure water.

4, warp pure water rinsing is after a while shut down at last, and at this moment because reverse osmosis filter influent side and water outlet side all are pure water, promptly the reverse osmosis membrane in the reverse osmosis filter is to be immersed in the pure water environment, thereby can avoid reverse osmosis membrane by the chlorine residue oxidation.

Certainly, in order to obtain better effect, reverse osmosis membrane preferably adopts the high polyamide composite film of resistance to chlorine.

More than be exactly of the present invention can be to the germ-resistant direct drinking fountain of reverse osmosis membrane, this can have following several respects advantage to the germ-resistant direct drinking fountain of reverse osmosis membrane:

1, can effectively solve water purifier by the problem of microbial contamination;

2, keep three grades of pre-filterings to handle, purifying water effect can not reduce;

Soak membrane element with pure water when 3, shutting down, can reduce the risk of various pollutions, especially inorganic salt fouling;

4, cost is low, and safety is high, and use cost is low.

Therefore, the present invention can realize the effective sterilization to reverse osmosis membrane, thereby help improving the system water water quality of direct drinking fountain when keeping three grades of pre-filterings to handle.

But; Those skilled in the art will recognize that; Above-mentioned embodiment is exemplary, is to be the restriction to this patent protection domain in order better to make those skilled in the art can understand this patent, can not to be interpreted as; So long as according to spirit that this patent discloses done anyly be equal to change or modify, all fall into the scope of this patent protection.

Claims

1. an ability is to the germ-resistant direct drinking fountain of reverse osmosis membrane; Comprise the cotton strainer of 5 μ m PP, preposition activated carbon filter that water pipe successively is connected in series; The cotton strainer of 1 μ m PP, first entering water electromagnetic valve; Water pump, reverse osmosis filter; The pure water outlet of said reverse osmosis filter connects the intake-outlet of pressure water storage barrel, and the intake-outlet of said pressure water storage barrel also connects water tap, and said first entering water electromagnetic valve, water pump all are electrically connected unit; It is characterized in that: the intake-outlet of said pressure water storage barrel also is connected to the water-in of water pump through way solenoid valve on one side; Also be provided with one second entering water electromagnetic valve between cotton strainer of said 5 μ m PP and the preposition activated carbon filter, be provided with and said second entering water electromagnetic valve, the 3rd parallelly connected entering water electromagnetic valve of preposition activated carbon filter between cotton strainer of said 5 μ m PP and the cotton strainer of 1 μ m PP, said bypass SV, second entering water electromagnetic valve, the 3rd entering water electromagnetic valve also are electrically connected unit.

2. according to claim 1 can the germ-resistant direct drinking fountain of reverse osmosis membrane being is characterized in that: said reverse osmosis filter adopts the polyamide composite film of resistance to chlorine.

3. according to claim 1 can the germ-resistant direct drinking fountain of reverse osmosis membrane being is characterized in that: also have the post active carbon strainer between said bypass SV and the pressure water storage barrel.