KR950005419B1 - Water clarifier and comtrol circuit - Google Patents

Abstract

a pre-processing filter filled with filtering sands for removing a large-sized particles such as the iron rust within the water supplied through a water feeding valve; an active carbon absorbing filter filled with active carbons for absorbing various components emitting smell in the water, organic material and detergents; a reverse-osmotic pressure membrain filter in which hollow filaments for removing minute particles; a water pressing pump for pressing the water purified through the reverse-osmotic pressure membrain filter; a total dissolved solid sensor attached to the water drainage pipe of the reverse-osmotic pressure membrain filter; a mineral solving filter; a flow switch for draining the drinking water by turning on/off by a drain cock; and a ultraviolet ray sterilizing tub for sterilizing the drinking water.

Description

Drinking water purifier and its control circuit

1 is a block diagram of a conventional drinking water purification device.

2 is a block diagram of the drinking water purification device of the present invention.

3 is a control circuit diagram for drinking water purification of the present invention.

4 and 2, explanatory diagrams of respective parts.

5 is a diagram illustrating an internal configuration of a microcomputer for input of each part.

* Explanation of symbols for main parts of the drawings

22: pretreatment filter unit 24: activated carbon adsorption filter unit

27: reverse osmosis membrane filter portion 30: mineral elution filter portion

31: UV sterilization tank 41: microcomputer

42: load driving unit 44: flow switch unit

45: display section 46: filter life setting section

47: water purification function selection unit V ₁ : water supply valve

V ₂ , V ₃ : Backwash valve V ₄ : Bypass valve

RY ₁ : Relay

The present invention relates to a water purification device for removing particulate matter (iron rust, denitrification, residual chlorine, organic matter, heavy metals, bacteria, etc.) contained in drinking water, and in particular, UV sterilization is possible only when drinking water is used. The present invention relates to a drinking water purifier and a control circuit for indicating a status to an external user and informing a status to a consumer.

Conventional drinking water purification device configuration, as shown in Figure 1, the flow control valve (2) for supplying to the dropping tank (3) by adjusting the amount of water supplied through the pressure reducing valve (1), the dropping tank (3) The main filter (7) filled with filtered sand, activated carbon, and someite for removing particulate matter and odor-causing components in the water received from the water), and very fine particulate matter in the water through the main filter (7). A hollow fiber filter 9 in which the hollow fiber 8 for removing substances and various bacteria is molded, a water purification tank 10 for storing purified water through the hollow fiber filter 9, and this purified water It consists of a drain valve 12 which adjusts and drains when the water overflowed in the tank 10 reaches a certain amount to the drain pipe 11, and reference numeral 13 is an air valve.

In the conventional water purification device configured as described above, the water supplied from the tap water is supplied to the drop tank 3 by adjusting the amount of water through the pressure reducing valve 1 and the flow regulating valve 2, which is the drop tank 3. When the water supplied to the main filter 7 is supplied due to water pressure, large particulate matter such as iron rust in the water is removed by the filter sand 4, and the odor is caused through the activated carbon 5 and the sommite 6. Various components, organic substances, detergents, and the like are removed and supplied to the hollow fiber filter 9 again.

Then, fine particles and various bacteria are removed by the hollow fiber 8 in the hollow fiber filter 9. As such, when the purified water is supplied to the purified water tank 10 through the main filter 7 and the hollow fiber filter 9, the user may extract the purified water through the blower cock.

When the purified water is supplied to the purified water tank 10 and overflowed, the water is stored in the drain pipe 11, and when a predetermined amount is exceeded, the water is drained out by the drain valve 12.

However, in the conventional water purifier that operates as described above, the life of the filter varies depending on the flow rate of the purified water, so that the replacement time of the filter cannot be matched, and the consumer can drink water with confidence because the purified water of the water cannot be known. There was no such problem.

Therefore, in order to solve the conventional problems, the present invention enables the filter life time to be set differently according to the water quality conditions of each region, after which the remaining filter life is displayed externally after integrating the use time of the filter, and the purified state is the electrolyte solution sensor (TDS). After identifying the purified water condition, the purified water status is displayed on the outside, and it is a switch that can be interlocked when discharging drinking water to create a drinking water purifier that provides stability and reliability to users by UV sterilization of applied water. When described in detail with reference to the drawings as follows.

2 is a block diagram of the drinking water purifying apparatus of the present invention, as shown therein, a filter yarn layer and a nonwoven fabric forming layer for removing large particulate matter such as iron rust in the water supplied through the water supply valve V ₁ ( 21, the activated carbon adsorption filter unit 24 filled with the pretreatment filter unit 22 filled with activated carbon 23 for adsorption and removal of various components, organic substances, detergents, etc., which cause odors in water, and very fine particles. Pressure storage tank (28) for passing purified water through the reverse osmosis membrane filter unit (27), to which the hollow fiber (26) is molded to remove the substance and various bacteria, and the reverse osmosis membrane filter unit (27). And an electrolyte solution sensor (TDS) (29) attached to a drain pipe of the reverse osmosis membrane filter unit (27) to pressurize the water to be stored in the tank and the pressure storage tank. Mineral water in water purified from 28 Extraction of the drinking water by the mineral dissolution filter unit 30 for eluting the mineral component, the ultraviolet sterilization tank 31 for ultraviolet sterilization of water through the filter unit 30, and the extraction cock 33. When the water is turned on and off, the drinking water is flushed out through the flow switch 32 and the activated carbon adsorption filter unit 24 and the pretreatment filter unit 22 during backwashing to discharge water containing foreign substances. It consists of backwash valves (V ₂ ) and (V ₃ ).

Here, reference numeral V ₄ is a bypass valve, 34 is a pressure switch.

As shown in FIG. 3, the control circuit for drinking water purification of the present invention includes a microcomputer 4 for controlling the entire system and a load driver 42 for driving a load in accordance with the control output of the microcomputer 41. ), The TDS sensor unit 43 for detecting the purified state by the electrolyte solution sensor, the flow switch unit 44 for checking the flow of water, and the lamp L ₁ according to the control signal of the microcomputer 41. -L ₁₀ ) is driven to display the backwash, the purified water condition and the filter remaining life, and the display unit 45, and the filter life setting to set the initial value of the filter life according to the water quality using the variable resistor (VR ₁ ) And a water purifying function selection unit 47 for performing water purification according to the control signal of the microcomputer 41. The microcomputer receives a signal from the outside as shown in FIG. A signal input section 41-1, and this signal input section 41-1. It was constructed in the ssipiyu (41-2) and this pirom (41-3) to embed data for performing various operation processing in accordance with the input signal.

Unexplained symbols ⓐ and ⓑ represent AC commercial power.

Referring to the operation and effect of the present invention configured as described above in detail.

First, referring to the drinking water storage function, when a low signal is applied from the microcomputer 41 to the load driver 42 through the output ports P ₁ and P ₅ , the high signal inverted through the inverter unit 41 is applied. Since the triacs T ₁ and T ₅ are applied to the gate, the water pressure booster pump 25 is turned on by the water supply valve V ₁ and the transformer ₁ .

Then, the water introduced through the water supply valve V ₁ passes through the filter sand 11 layer of the pretreatment filter unit 22 to remove large particulate matter such as iron rust and flows into the activated carbon adsorption filter unit 24. In addition, chlorine, organic substances, detergents, and the like contained in the water are physically adsorbed in the activated carbon 13, and purified water is introduced into the reverse osmosis membrane filter unit 27. Very fine particulate matter, various bacteria, and the like are removed in the flowed water through the hollow fiber 26 layer, and the purified water sterilized water is stored in the pressure storage tank 28. When a certain voltage is detected by the pressure switch 34 of the pressure storage tank 28, a high signal is output to the microcomputer 41 through the output ports P ₁ and P ₅ to supply a water supply valve V _1. ) And the water pressure booster pump 25 are stopped.

When the purified water is introduced into the pressure storage tank 28, the voltage V ₊ sensed by the TDS sensor 29 and the value V ₊ set by the switch array 56 are calculated by the operational amplifier OP. ₁ )

When the value calculated by the operation amplifier OP ₁ is output to the microcomputer 41, the value stored in the EPI ram 41-3 in the CPI 41-2 in the microcomputer 41 shown in FIG. Check the water purification status in comparison with.

The microcomputer 41 then emits a high or low signal to the inverters 52, 53, which are the display portion 45. When the water purification condition is good, L ₉ is turned on, and when it is bad, L ₁₀ is turned on. Let's do it. Here, the switch array 56 can be fine-tuned when setting the set value.

The TDS sensor 29 detects ions contained in the water by conductivity as shown in FIG. 4C, and the TDS sensor electrode 29-2 detects the water flowing through the flow path tube 29-1. ) as to sense large, the ion components conductivity rises and the sensor resistance is a third degree detected voltage (V ₊ from) the set voltage (V _{reduced-greater} than) (V _+> V _-) of the operational amplifier (OP ₁₎ Through this, a high voltage is output to the microcomputer 41. In addition, when the ionic component is small, the conductivity decreases and the sensor resistance becomes large, so that the lyric voltage V ₋ is greater than the sensing voltage V ₊ so that the low voltage through the operational amplifier OP ₁ is output to the microcomputer 41.

Under the assumption that the purified water of the water is good, the user withdraws the drinking water stored in the input storage tank 28 through the extraction cock 33, and when the flow rate of the pressure storage tank 28 falls below a certain amount, the water supply valve V again. ₁ ) and the underwater pressure pump 25 is driven to always maintain a certain amount or more of the flow rate in the pressure storage tank (28).

The flow switch 32 when the drinking water is taken out by the extraction cock 33 is a ball bearing 32- by the pressure of the input part 32-1 as shown in FIG. Since 3) rises upward, light emitted from the light emitting diode L ₁₁ receives light from the phototransistor TR ₁ , so that the phototransistor TR ₁ is turned on. Therefore, since the low signal is input from the flow switch unit 44 to the input port P _{11 of} the microcomputer 41 (FIG. 3), the microcomputer 41 recognizes the drinking water extraction state and outputs the output port P ₆ . By applying a high signal through the excitation coil of the relay (RY ₁ ) to apply a voltage to the choke coil (LC).

Therefore, a high voltage across the UV germicidal lamp (LP ₂₎ is an organic light is an ultraviolet germicidal lamp (LP _2). That is, sterilization of drinking water when drinking water is taken out. In the same time, because the voltage applied to the neon lamp (LP ₃₎ is driven at the same time as the UV germicidal lamp (LP ₂₎ indicates that the UV germicidal lamp (LP ₂₎ can be potable drinking water offer a drive is in progress.

As described above, the drinking water is purified and stored in the storage tank, and the stored drinking water is sterilized and drained when the drink is stored. As described above, when the predetermined time elapses, the microcomputer 41 outputs the output port (P ₂ ), (P ₃ ) Drives the low signal to drive the backwash valves (V ₂ ) and (V ₃ ).

Therefore, the backwash valve V ₃ is turned on to supply water, and the water introduced therein remains in the activated carbon 23 filled in the activated carbon adsorption filter unit 24 and the pretreatment filter unit 22 and in the filtration layer 21. Organic substances, detergents, iron rust, turbidity, dark black and other particulate matter are dropped into the water and discharged through the backwash valve (V ₂ ) to the outside. The back washing is the same as the direction of the arrow with a solid line in FIG. 2, which will also show the cleaning when being lit, the reverse L ₁ in the display section 45. The

In general, the backwashing process has a higher flow rate than the clean water sterilization, so almost all of the particulate matter falls.

When the initial power supply, the reverse osmosis membrane filter unit 27 is washed to drain the contaminated water of the filter layer, and then the back washing valves V ₂ and V ₃ are driven. In the above, the reverse osmosis membrane filter unit 27 is cleaned by driving the reverse washing valve V ₂ and the bypass valve V ₄ to contaminate the pretreatment filter unit 22 and the reverse osmosis membrane filter unit 27. Drain any likely water.

When it is time to replace the filter, it is necessary to change the filter and perform initial cleaning. Looking at this, when the microcomputer 41 inputs the low signal to the water purification function selection unit 48 through the output port P ₁₀ , the water purification function is stopped. . After driving the backwash valve (V ₂ ), (V ₃ ) for a certain time to wash the emulsion component of the pretreatment filter unit 22, only the backwash valve (V ₃ ) is turned off and the bypass valve (V ₄ ) In operation, the activated carbon adsorption filter unit 24 and the reverse osmosis membrane filter unit 27 are washed, and this washing is the same as the direction indicated by the dotted line in FIG.

The driving time of the water supply valves V ₂ and V ₃ is integrated in the CPI 41-2 in the microcomputer 41 shown in FIG. 5, and then the variable resistance VR ₁ of the filter life setting unit 46 is obtained. By driving the lamp of the display unit 45 by the remaining time ratio of each set time compared to the filter life initial value time set by), the remaining time ratio of the filter life is informed to the outside.

Since the voltage applied to the microcomputer 41 in the filter life setting unit 46 varies according to the value of the variable resistor VR ₁ , the initial setting value of the filter life is set by dividing the voltage by several steps. It depends on the water quality.

As described in detail above, the present invention sets the life of the filter differently according to the water quality conditions of each region, displays the remaining time of the filter life by integrating the use time, and displays the purified state by the TDS sensor. In addition, ultraviolet sterilization is possible only when drinking water is used, and filter washing is automatically performed, thereby providing consumers with confidence and satisfaction with the water purifier.

Claims (5)

The pretreatment filter 22 filled with a layer of filtration sand 21 for removing large particulate matter such as iron rust in the water supplied through the water supply valve V ₁ , and various components, organic substances, and detergents causing odors in the water. Reverse osmosis membrane filter unit in which activated carbon adsorption filter unit 24 filled with activated carbon 23 for adsorption and removal, and hollow fiber 26 for removing very fine particulate matter and various bacteria are molded. 27) and a water pressure increase pump 25 for pressurizing the purified water through the reverse osmosis membrane filter unit 27 to be stored in the storage tank 28, and a drainage side of the reverse osmosis membrane filter unit 27. TDS (Total Dissolved Solid) sensor 29 attached to the water to grasp the purified state, and the mineral elution filter unit 29 and the extraction cock to contain the mineral component in the water purified from the pressure storage tank 28 When drinking water is taken out by 33, the drinking water is turned off. Through the flow switch 32, the ultraviolet sterilization tank 31 for performing ultraviolet sterilization on the drinking water when the drinking water is taken out, and the backwashing through the activated carbon adsorption filter unit 24 and the pretreatment filter unit 22, Drinking water purification device characterized in that it comprises a back-wash valve (V ₂ ), (V ₃ ) and the bypass filter (V ₄ ) to discharge the water contained in the foreign matter washed. The method of claim 1, wherein the flow switch (32) is drinking water taken out when the input 32-1 a ball bearing (32-2), the top up the light emitting diode (L _11), the phototransistor (TR ₁₎ the light by the by the water pressure Drinking water purifier, characterized in that configured to receive. The microcomputer 41 for controlling the operation of the entire system, the load driver 42 for driving each load according to the control signal of the microcomputer 41, and the voltage and setting detected by the electrolyte solution sensor TDS. TDS sensor unit 43 for detecting the water purification state by comparing the voltage, the flow switch 44 for checking the flow state of the water, and the lamp (L _1- L ₁₀ ) in accordance with the control signal of the microcomputer 41 A display unit 45 for driving the backwash state, the purified water state and the filter remaining life, a filter life setting unit 46 for setting the initial value of the filter life with the variable resistor VR ₁ , and the microcomputer ( And a water purifying function selection unit (47) configured to perform or stop water purifying according to the control signal of (41). 4. The load driving unit 42 according to claim 3, wherein the load driving unit 42 inverts the signal input from the microcomputer 41, and the inverting signal of the inverter unit 51 through the resistors R ₁₁ -R ₁₅ . By controlling the furnace gate to drive the valves (V _1- V ₄ ), and the triac (T ₁ -T ₅ ) to drive the submersible pressure pump 25 through the transformer (TRANS ₁ ), the inverter 54 Control circuit of the drinking water purification device, characterized in that consisting of a relay (RY ₁ ) to be excited according to the signal through the ultraviolet sterilization lamp (LP ₂ ), neon lamp (LP ₃ ) and start lamp (LP ₁ ). 4. The TDS sensor unit 43 according to claim 3, wherein the TDS sensor unit 43 is set by the switch array 56 for setting the reference value of the purified state, the voltage V ₊ sensed by the TDS sensor 29, and the switch array 56. setting voltage (V _-) comparison operation of the operational amplifier controls the drinking water purification device, characterized by consisting of a (OP ₁₎ to the circuit.