A kind of reverse osmosis water purifier
Technical field
The present invention relates to a kind of reverse osmosis water purifier that is used for family or public arena, belong to water-treatment technology field, particularly the improvement of reverse osmosis water treatment system technology.
Background technology
Under the environment for use of water-purifying machine; Receive the influence of the constructional feature of reverse-osmosis membrane element itself, the water production rate of common reverse osmosis water purifier can only reach 100~500ml/min, because its water production rate is less; Therefore in use; It is subsequent use the pure water collection of making to be got up by water tank, owing to can't accomplish promptly to filter i.e. drink, so the pure water in the water tank also has by the risk of bacterial contamination; In addition, water tank has caused the waste of water resources to a certain extent because the constructional feature of himself can make the ratio of condensed water increase relatively.Though some design water saving to a certain extent (as 200610147719.3), if water tank exists, the loss of water resources is just unavoidable.
Summary of the invention
The technical problem that will solve of the present invention is to consider the problems referred to above and provides a kind of reverse osmosis water purifier that does not have water tank, realization fresh water promptly to make i.e. drink, conserve water resource.
Realize that technical scheme of the present invention is: a kind of reverse osmosis water purifier; Comprise preprocessing filter element, topping-up pump, r-o-filter core; The tap water water-in connects first preprocessing filter element, topping-up pump, second preprocessing filter element, r-o-filter core successively; The condensed water branch road of r-o-filter core and filtered water branch road are connected to condensed water outlet and pure water outlet respectively; It is characterized in that: said r-o-filter core comprises two r-o-filter cores parallel with one another, is connected to the condensed water water outlet after the condensed water branch road parallel connection of two r-o-filter cores, is connected to the pure water water outlet after the filtered water branch road parallel connection of two r-o-filter cores; Be provided with liquid meter between said topping-up pump and the preprocessing filter element, said topping-up pump starts or stops work according to the flow signal that liquid meter detects.
Preferably, said liquid flow rate is counted the electric liquid under meter.
Be provided with the condensed water SV between said condensed water branch road and the condensed water water outlet.
Be provided with the 3rd preprocessing filter element between said filtered water branch road and the pure water water outlet.
When adopting such scheme, this water-purifying machine power-up state is opened the tap water water-in, and tap water is at first through first preprocessing filter element, the electric liquid under meter of flowing through again, topping-up pump, second preprocessing filter element.After under meter is sensed flow signal and is reached topping-up pump startup value, start topping-up pump work, carry filtered water to two a r-o-filter core of certain flow, after the filtration, the condensed water of flowing through after condensed water is compiled SV is discharged; The 3rd preprocessing filter element of flowing through after pure water compiles flows out from the pure water water outlet and to supply the user to use.This water-purifying machine adopts the mode of reverse osmosis membrane filter core parallel connection, with the electric liquid under meter topping-up pump is controlled, and reaches the purpose that increases hydraulic pressure, guarantees water flow.Realize through above technology that complete machine is promptly filtered and promptly drink fresh water and avoid polluting, also can realize water production rate >=1000ml/min.Be a kind of water outlet hygienic safety, no water tank reverse osmosis water purifier easy and simple to handle.The present invention had both realized that fresh water promptly made promptly drink, had also practiced thrift water resources, was that a kind of design is ingenious, excellent property, convenient and practical water-purifying machine.
Description of drawings
Fig. 1 is the water treatment schematic diagram of reverse osmosis water purifier involved in the present invention.
Embodiment
As shown in Figure 1; A kind of reverse osmosis water purifier that does not have water tank; Comprise first, second, third preprocessing filter element 1,9,12, electric liquid under meter 2, topping-up pump 3, r-o-filter core 4,5; Tap water water-in 11 connects first preprocessing filter element 1, electric liquid under meter 2, topping-up pump 3, second preprocessing filter element 12, r-o-filter core 4,5 parallel with one another successively; The filtered water branch road 8 that the condensed water branch road 13 of two r-o-filter cores 4,5 is parallel-connected to condensed water SV 6 and leads to 7, two r-o-filter cores of condensed water water outlet 4,5 leads to water tap pure water water outlet 10 after filtering once more through the 3rd preprocessing filter element 9.
The working process of water-purifying machine is in the foregoing description: as shown in Figure 1, after the complete machine energising, topping-up pump 3, condensed water SV 6 are not worked, and complete machine is a holding state; Open tap water water-in 11; Electric liquid under meter 2 detects flow signals, when electric liquid under meter 2 monitors when adding up water and reaching 100~300L, reaches topping-up pump 3 startup values; Topping-up pump 3 is started working; Condensed water SV 6 receives the flow restriction value or the stage time signal is also started working, and filtered water is filtered through the r-o-filter core 4,5 of second preprocessing filter element 12, parallel connection, and the condensed water after the filtration flows out from condensed water outlet 7; Pure water flows out from pure water water outlet 10, and this moment, complete machine was in the system water state; When breaking off tap water water-in 11, under meter 2 detects less than flow signal, topping-up pump 3 outages, and complete machine quits work, and gets into holding state.When opening tap water water-in 11 once more, then complete machine repeats to make water state.