Summary of the invention
The objective of the invention is to overcome the deficiencies in the prior art, provide a kind of waste water that RO membrane reverse osmosis filter is produced to be fully used, and dependable performance, household reverse osmosis drinking device easy to use again.
The present invention solves the problems of the technologies described above the technical scheme that is adopted:
A kind of household reverse osmosis drinking device of graywater, comprise reverse osmosis membrane, booster pump, storage tank, controller, it is characterized in that: the water inlet that described storage tank has ball-cock assembly is communicated with raw water pipeline, the condensed water outlet of storage tank is communicated with an ejector by first check valve and pipeline, raw water pipeline is communicated with clear water faucet by ejector, the former water out of storage tank is communicated with the reverse osmosis membrane water inlet by booster pump, the outlet of reverse osmosis membrane pure water is communicated with the pure water tap by pressure switch, the wastewater outlet of reverse osmosis membrane is communicated with the waste water import of storage tank by second check valve and waste water proportional controller, TDS value probe also is installed on the storage tank, low-water level switch, described controller are electrically connected and control TDS value probe, low-water level switch, pressure switch and booster pump.
The technical scheme that the present invention can also adopt is:
The combination of described booster pump and reverse osmosis membrane can be one group, and perhaps the combination by many groups booster pump and reverse osmosis membrane composes in parallel.
Because the present invention has taked above-mentioned technical measures, it compared with prior art has following advantage:
1. solved the difficult problem that waste water makes full use of, easy to use, saved former water;
2. by adopting multinomial control scheme, improve equipment dependability, protected the long-term operate as normal of vitals;
3. by above scheme, help promoting the popularization use of household reverse osmosis drinking device.
The specific embodiment
Below in conjunction with accompanying drawing the present invention is described in further detail.
With reference to Fig. 1, the present invention includes booster pump 11, first check valve 15, second check valve 16, reverse osmosis membrane 10, pure water tap 6, clear water faucet 12, hand-operated valve 7, waste water than 9, ejector 14, TDS value probe 5, low-water level switch 2, ball-cock assembly 3, storage tank 4, controller 13, pressure switch 8, pipeline etc.
The water inlet 21 that storage tank 4 has ball-cock assembly 3 is communicated with raw water pipeline 17, the condensed water of storage tank 4 outlet 18 is communicated with an ejector 14 by first check valve 15 and pipeline, raw water pipeline 17 is communicated with clear water faucet 12 by ejector 14, the former water out 19 of storage tank 4 is communicated with reverse osmosis membrane water inlet 22 by booster pump 11, the outlet 24 of reverse osmosis membrane pure water is communicated with pure water tap 6 by pressure switch 8, reverse osmosis membrane wastewater outlet 23 is communicated with the waste water import 20 of storage tank 4 by second check valve 16 and waste water proportional controller 9, TDS value probe 5 also is installed on the storage tank 4, low-water level switch 2, controller 13 are electrically connected and control TDS value probe 5, low-water level switch 2, pressure switch 8 and booster pump 11.TDS value probe 5 is used for surveying the total solid value of water.
Former water is communicated with by the water inlet 21 that threeway 1 and storage tank 4 have ball-cock assembly 3, and to storage tank 4 moisturizings, ball-cock assembly 3 closes valves (moisturizing again during low water level) when arriving certain water level; When pure water tap 6 is opened, pressure switch 8 step-downs, its contacting, booster pump 11 is worked simultaneously, the former water of storage tank 4 is pressed to reverse osmosis membrane water inlet 22 by pipeline,, flow out from pure water tap 6 by second check valve 16, pressure switch 8 again through reverse osmosis membrane pure water outlet 24; When pure water tap 6 was closed, pressure switch 8 was boosted, and its contact disconnects, and booster pump 11 promptly quits work.Other has the waste water of reverse osmosis membrane 10 to flow into storage tank 4 by waste water proportional controller 9, and former water constantly concentrates and utilizes.When use was purified waste water, the concentrated former water of storage tank 4 is inhaled in the running water pipe network by ejector 14 by first check valve 15 again, and was used as other domestic water.
Be protection booster pump 11 and reverse osmosis membrane 10, when TDS value probe 5 is found out the TDS value when setting value, for example greater than 800, the concentration that former water is described is the duty of incompatibility reverse osmosis membrane 10, and controller 13 quits work booster pump 11.After changing the dense water of storage tank 4 during water purification to be used, TDS value reduces, and controller 13 is the work of recovery booster pumps 11 automatically.Low-water level switch 2 is the protections when being used for lack of water.When lack of water, the float of ball-cock assembly 3 falls, and low-water level switch 2 is disconnected, and controller 13 quits work booster pump 11.After treating that water level recovers, controller 13 recovers the work of booster pump 11 automatically.
Controller 13 is to adopt the work of following course of work control reverse osmosis water:
During pressure switch 8 closings of contact, the TDS value is less than when setting value, and when low-water level switch 2 is in closure, controller 13 will make booster pump 11 work, and reverse osmosis membrane 10 is made pure water.Can not satisfy as one of them condition, then booster pump 11 can not be worked, and reverse osmosis membrane 10 can not be worked.
Former water is connected with the water inlet that storage tank 4 has ball-cock assembly 3 by threeway 1, to storage tank 4 moisturizings.After storage tank 4 former water are mended and are expired, controller 13 makes pressure switch 8 closures, the TDS value is when meeting the condition of work value, and it is 2 fashionable that low-water level switch closes, booster pump 11 will extract former water and press to reverse osmosis membrane water inlet 22 by pipeline from storage tank 4, the reverse osmosis membrane pure water flows out from pure water tap 6 by hand-operated valve 7, and waste water flows into storage tank 4 through waste water proportional controller 9, finishes system pure water process.When the hand-operated valve 7 of pure water tap 6 cut out, pressure switch 8 pressure rose, and its contact disconnects and promptly quitting work.Hand-operated valve 12 is opened when using water purification, and former water flows out from clear water faucet 25, and the condensed water of storage tank 4 is by first check valve 15 simultaneously, by ejector 14 condensed water of storage tank 4 is extracted out again, to reach the former water of changing storage tank 4, reduce its TDS value, utilize the purpose of waste water.The combination of booster pump 11 and reverse osmosis membrane 10 can be one group, and perhaps the combination by many groups booster pump 11 and reverse osmosis membrane 10 composes in parallel.
Can also former water pre-treatment means be installed in former water water inlet place of apparatus of the present invention, so that the water source is carried out preliminary treatment.