KR20090032345A - Ro type purifier - Google Patents

Abstract

A reverse osmosis water purification system is provided to extend lifetime of an ion exchange filter by processing the small amount of concentrate with the ion exchange filter and to recycle the concentrate as raw water to be purified by passing directly the concentrate through a reverse osmosis filter. A reverse osmosis water purification system includes a reverse osmotic pressure filter, an ion exchange filter, a flowing pipe, and a flow control unit(130). A flux control unit includes a valve body(132), a ball(137), and a control unit(140). The flux control unit is installed between the reverse osmotic pressure filter and the ion exchange filter. A flowing passage(133) is formed in the valve body. A cylindrical groove(134) is formed on one side of the flowing passage.

Description

Reverse Osmosis Water Purification System {RO TYPE PURIFIER}

The present invention relates to a reverse osmosis water purification device, and more particularly, to a reverse osmosis water purification device in which reverse flow due to osmotic pressure and diffusion is prevented in a membrane filter in which water purification is performed by reverse osmosis.

In general, the water purifying device is to be used as drinking water for the user to drink by filtering the raw water supplied from the raw water supply source, or water purifier is a typical example.

On the other hand, when using a reverse osmosis (RO) membrane module as a filtering means of the water purification device, some of the raw water supplied to the RO membrane module is purified by the membrane to become purified water, the rest is concentrated with dissolved impurities It becomes a number.

At this time, the purified water may be discharged to be used after being collected into the collecting pipe, but may be consumed, but since the concentrated water is not used and is discarded in the drainage pipe, there is a problem in that the raw water may not be purified effectively.

A technique that can solve the waste of raw water generated in the RO filter of a general water purifier is disclosed in the registered utility model 20-0265610 as a "reverse osmosis water purification device without wastewater".

Here, the conventional "reverse osmosis water purification device without waste water" is to prevent the drainage of the concentrated water by condensing the concentrated water generated in the RO filter in the wastewater reprocessing filter and then joining the raw water through the high turbidity filter in the mixing tank. have.

However, the prior art unnecessarily arranges the high turbidity filter in front of the sediment filter in the state of the art in which the high turbidity filter is not necessary. That is, the sediment filter can simultaneously perform a high turbidity function, and the high turbidity function is a function required in an overseas country, and is a function not necessary in a domestic country.

And, the prior art uses salt (NaCl) to recycle the ion exchange filter. However, the technology of recycling the ion exchange filter is more economical to use the inexpensive ion exchange filter for single use in consideration of labor cost and environmental cost. In the prior art, the condensation tank was installed after the high turbidity filter and before the sediment filter. In other words, the concentrated water passes through the precarbon filter before being drained from the RO filter, and it is not preferable to return the filter to the previous filter and return it to the precarbon filter that has already passed.

In other words, since the concentrated water does not pass through the RO filter and only the ions are concentrated, it is more reasonable to connect the pipe after passing through the ion exchange filter before the RO filter and after the free carbon filter. Here, if a water tank is required, it may be connected before the RO filter and after the free carbon filter.

The present invention has been made to solve the above-described problems of the prior art, the pre-carbon filter after removing the dissolved impurities in the concentrated water in the ion exchange filter to prevent the concentrated water produced by the filtration action of the RO filter as waste water It is an object of the present invention to provide a reverse osmosis water purification device that can be recycled as raw water to be purified by passing directly through a RO filter.

The reverse osmosis water purifying apparatus according to the present invention comprises a reverse osmosis filter for discharging raw water introduced from one side by purified reverse osmosis and purifying the purified water having dissolved impurities removed and the concentrated water having a higher concentration of dissolved impurities, and the reverse osmosis pressure. An ion exchange filter for lowering the concentration of dissolved impurities in the concentrated water discharged from the filter, and a flow tube for directly introducing the concentrated water having a low concentration of dissolved impurities in the ion exchange filter into the reverse osmosis filter.

Here, between the reverse osmosis filter and the ion exchange filter is provided with a flow rate adjusting means for adjusting the flow rate of the concentrated water flowing from the reverse osmosis filter to the ion exchange filter in accordance with the flow rate of the purified water discharged from the reverse osmosis filter Can be.

In addition, the flow rate control means is formed so that the concentrated water flows from one side and discharged to the other side, a flow passage through which the concentrated water flows is formed therein, a valve body having a cylindrical groove formed on one side wall of the flow passage, and the valve A ball disposed in the flow passage of the body to provide flow resistance to the concentrated water or to be introduced into the cylindrical groove by the operation of the solenoid to increase the flow volume of the flow passage, and to periodically operate the solenoid to pass through the flow passage. And a controller for periodically increasing the flow rate of the concentrated water.

At this time, one side of the reverse osmosis filter is a sediment filter and a precarbon filter for filtering the raw water to join the concentrated water is lowered in the dissolved impurities in the ion exchange filter.

In addition, the sediment filter and the precarbon filter are disposed in one case so as to pass raw water flowing into the reverse osmosis filter to form a composite filter.

The reverse osmosis water purifying apparatus according to the present invention configured as described above removes the dissolved impurities in the concentrated water from the ion exchange filter to prevent the concentrated water produced by the filtration of the RO filter as wastewater, and then passes the RO filter without passing through the precarbon filter. It can be directly recycled as raw water to be purified by direct passage.

As the concentrated water reducing valve is installed in the water purifier, the concentrated water is reduced by almost half. Therefore, the proposed company's water purifier system has a longer life of ion exchange filter because it treats less concentrated water with ion exchange filter than the existing patented water purifier.

Hereinafter, with reference to the accompanying drawings a preferred embodiment of the reverse osmosis water purification apparatus according to the present invention. In this process, the thickness of the lines or the size of the components shown in the drawings may be exaggerated for clarity and convenience of description. In addition, terms to be described below are terms defined in consideration of functions in the present invention, which may vary according to the intention or convention of a user or an operator. Therefore, definitions of these terms should be made based on the contents throughout the specification.

Hereinafter, with reference to the accompanying drawings will be described a preferred embodiment of the reverse osmosis water purification apparatus according to the present invention with reference to the accompanying drawings. In addition, the following examples are not intended to limit the scope of the present invention but merely presented by way of example, and there may be various embodiments implemented through the present invention.

Example

1 is a system diagram of a reverse osmosis water purification apparatus according to an embodiment of the present invention, Figure 2 is a detailed cross-sectional view of the flow control means of Figure 1, Figure 3 is an operation diagram of the flow control means shown in FIG.

As shown in Figures 1 to 3, the reverse osmosis water purifier according to an embodiment of the present invention purified by the reverse osmosis of the raw water introduced from one side of the purified water and the concentration of the dissolved impurities and the concentration of the dissolved impurities is removed The reverse osmosis filter 100 and the ion exchange filter 120 for lowering the concentration of dissolved impurities in the concentrated water discharged from the reverse osmosis filter 100, respectively.

Here, the ion exchange filter 120 and downstream may include a flow tube 122 for directly introducing the concentrated water of which the concentration of dissolved impurities is lowered into the reverse osmosis filter 100, the flow tube 122 is a reverse osmosis filter 100 The raw water pipe 110 for supplying the raw water is directly connected to the reverse osmosis filter 100 so that the concentrated water passing through the ion exchange filter 120 passes directly to the reverse osmosis filter 100 without passing through another filter. Can be introduced.

That is, the concentrated water from which dissolved impurities are removed from the raw water and the ion exchange filter 120 is introduced into the reverse osmosis filter 100 and separated into purified water and concentrated water by reverse osmosis at the RO membrane of the reverse osmosis filter 100. The concentrated water is introduced into the ion exchange filter 120 again from the reverse osmosis filter 100, and the purified water is introduced into the post carbon filter 125 connected to the reverse osmosis filter 100, filtered, and then used for drinking. 127).

Here, the flow rate of the purified water discharged from the reverse osmosis filter 100 to the flow rate of the concentrated water flowing from the reverse osmosis filter 100 to the ion exchange filter 120 between the reverse osmosis filter 100 and the ion exchange filter 120. It may be provided with a flow control means 130 to adjust according to.

At this time, the flow rate control means 130 is to reduce the flow rate of the concentrated water flowing into the ion exchange filter 120 by reducing the flow rate of the concentrated water flowing out of the reverse osmosis filter 100, in the reverse osmosis filter 100 The concentration of the concentrated water is increased to prevent a state in which the flow rate of purified water flowing from the reverse osmosis filter 100 to the post carbon filter 125 side is significantly reduced.

In detail, the flow regulating means 130 is formed so that the concentrated water flows from one side to be discharged to the other side, a flow passage 133 through which the concentrated water flows is formed therein, and a cylindrical groove on one wall of the flow passage 133. 134 is formed in the valve body 132 and the flow passage 133 of the valve body 132 to provide a flow resistance to the concentrated water or to enter the cylindrical groove 134 by the operation of the solenoid 135 And a ball 137 that increases the flow amount of the flow passage 133, and a controller 140 that periodically operates the solenoid 135 to periodically increase the flow amount of the concentrated water passing through the flow passage 133. .

When the flow rate of the concentrated water discharged from the reverse osmosis filter 100 is reduced, the water purification efficiency of the reverse osmosis filter 100 is reduced, so that the discharge of purified water can be reduced significantly, the control unit 140 is a reverse osmosis filter ( In operation 100, the solenoid 135 is operated to increase the concentration of the concentrated water to increase the flow rate of the concentrated water to the ion exchange filter 120 side.

Here, the ball 137 blocks the flow passage 133 of the valve body 132 and is moved to the cylindrical groove 134 side of the valve body 132 by the solenoid 135 to pass through the flow passage 133. In order to increase the flow rate of the concentrated water, the control unit 140 may include a microcontroller programmed to periodically operate the solenoid 135.

And, on one side of the reverse osmosis filter 100, a sediment filter 142 and a pre-carbon filter 143 through which raw water is filtered to join with concentrated water having a low dissolved impurity in the ion exchange filter 120 should be disposed.

In addition, the sediment filter 142 and the pre-carbon filter 143 are arranged in one case so that the raw water flowing into the reverse osmosis filter 100 in order to form a complex filter 145 to provide a compact water purification device. Can be.

1 is a system diagram of a reverse osmosis water purification device according to an embodiment of the present invention.

2 is a detailed cross-sectional view of the flow control means of FIG.

3 is an operation of the flow control means shown in FIG.

<Explanation of symbols on main parts of the drawings>

100: reverse osmosis filter 110: raw water pipe

120: ion exchange filter 122: flow tube

125: post carbon filter 127: main tank

130: flow rate control means 132: valve body

133: flow passage 134: cylindrical groove

135: solenoid 137: ball

140: control unit 142: sediment filter

143: pre-carbon filter 145: composite filter

Claims (5)

A reverse osmosis filter which purifies raw water introduced from one side by reverse osmosis to discharge purified water from which dissolved impurities are removed and concentrated water having a higher concentration of dissolved impurities; An ion exchange filter for lowering the concentration of dissolved impurities in the concentrated water discharged from the reverse osmosis filter; And Reverse osmosis water purification apparatus comprising a flow pipe for directly introducing the concentrated water of the concentration of dissolved impurities in the ion exchange filter to the reverse osmosis filter. The method of claim 1, Between the reverse osmosis filter and the ion exchange filter is provided with a flow rate adjusting means for adjusting the flow rate of the concentrated water flowing from the reverse osmosis filter to the ion exchange filter in accordance with the flow rate of purified water discharged from the reverse osmosis filter Reverse osmosis water purification device. The method of claim 2, The flow rate control means is formed to be discharged to the other side by the inflow of concentrated water from one side, the flow passage through which the concentrated water is formed therein, the valve body formed with a cylindrical groove on one side wall of the flow passage; A ball disposed in the flow passage of the valve body to provide a flow resistance to the concentrated water or to be introduced into the cylindrical groove by the operation of the solenoid to increase the flow volume of the flow passage; And And a control unit periodically operating the solenoid to periodically increase the flow amount of the concentrated water passing through the flow passage. The method of claim 1, One side of the reverse osmosis filter is a reverse osmosis water purification device, characterized in that the sediment filter and pre-carbon filter for filtering the raw water to join the concentrated water is lowered in the dissolved impurities in the ion exchange filter. The method of claim 4, wherein The sediment filter and the pre-carbon filter is reverse osmosis water purification apparatus, characterized in that the raw water flowing into the reverse osmosis filter is disposed in one case to form a composite filter.

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