KR101986254B1 - Method for Controlling Pump Positively using Flow Sensor - Google Patents

Abstract

(A) starting the operation of the water softener, (b) confirming the non-operating state of the pump installed in the water softener through the control unit, (c) (D) measuring the flow rate obtained in real time through the flow rate sensor, (e) measuring the flow rate through the flow rate sensor, and (F) if the measured water flow rate is less than the reference water flow rate, the control unit applies an operation signal to the pump to determine whether the water flow rate satisfies a reference water flow rate set in the control unit.

Description

TECHNICAL FIELD [0001] The present invention relates to an active control method of a pump using a flow sensor,

The present invention relates to a method of active control of a pump using a flow sensor, and more particularly, to a method of controlling an active control of a pump using a flow sensor for recognizing a raw water flowing into a water softener and regulating an output of the pump .

A water softener is a device that converts ionized water into hard water such as tap water and turns it into soft water. It removes impurities such as rust and colloid in raw water to make soft and clean water that is especially good for skin beauty.

In the case of existing water softener products, the user can change the output of the pump by using the dial or configure the pump to operate using the reed switch and flip structure. In the manual operation as described above, the user has to manually operate according to the variation of the outflow according to the input water quantity and the input water pressure, and the noise increases as the output amount of the pump increases.

With reference to the conventional automatic regenerative water softener using the conventional pump described in Patent No. 10-0552582, the raw water is softened to control the temperature change generated when the raw water is discharged and discharged at an appropriate temperature, and the ion resin The regeneration water is automatically supplied to the ion resin tank from the regeneration tank by the pump at the time of regeneration. However, there is a limitation in that the regulation of the operation of the pump is not described by measuring the quantity of water entering the water softener.

In order to solve the above problems, in order to solve the above problem, when the raw water flowing into the water softener is recognized by the flow sensor, and when the raw water measured by the right flow is above the preset reference flow rate, the operation of the pump is controlled, And to provide an active control method of a pump using a flow sensor for controlling the pump.

According to another aspect of the present invention, there is provided a method of controlling an active pump using a flow rate sensor, the method comprising the steps of: (a) starting operation of a water softener; (b) (C) determining whether the raw water is introduced into the water softener through the presence of raw water in the flow sensor installed in the water softener, (d) measuring the flow rate obtained in real time through the flow sensor, (e) determining whether the water flow rate measured through the flow sensor satisfies a predetermined reference water flow rate to the controller, and (f) if the measured water flow rate is less than the reference water flow rate, .

The step (b) may further include the step of (b1) opening the water outlet connected to the water softener.

It is preferable that the flow rate sensor is disposed in an inlet flow channel or an outlet flow channel of the water softener.

The output of the pump may preferably be in the range of 90W to 110W.

The reference water flow rate may preferably be 6.0 LPM.

In the active control method of the pump using the flow sensor of the present invention described above, the raw water flowing into the water softener is recognized through the flow sensor, and then the operation of the pump is controlled in the case where the raw water measured is higher than the predetermined reference flow rate This controls the pump output.

The present invention improves the life of the pump by controlling the output of the pump by recognizing the flow rate by using the flow sensor without manually advancing the operation of the pump and by reducing the load that can be excessively applied to the pump, .

1 is a view showing an embodiment of a water softener provided with a flow sensor and a pump,
2 is a block diagram showing the connection relationship between the water softener components, and
3 is a flowchart showing a time-series execution process of a method of active control of a pump using a flow sensor according to the present invention.

These and other objects, features and other advantages of the present invention will become more apparent by describing in detail preferred embodiments of the present invention with reference to the accompanying drawings. DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS Hereinafter, an active control method of a pump using a flow sensor according to the present invention will be described in detail with reference to the accompanying drawings.

The present invention is not limited to the water softener, but may be applied to any device that needs to regulate the amount of water supplied by using a pump such as a water purifier and an ionizer.

The water softener applied to the present invention can be manufactured integrally or separately from each other as required. In addition, some components may be omitted depending on the usage pattern.

First, an embodiment of a water softener 100 to which the present invention is applied will be described with reference to FIGS. 1 and 2. FIG.

The water softener 100 includes a soft water tank 110 having an ion exchange resin therein, a regeneration tank 120 in which the regenerant is stored and connected to the soft water tank 110 and the regeneration channel E, A switching valve 130 for transferring the raw water supplied through the regeneration tank 120 to the regeneration tank 120 through the regeneration water passage C or the raw water supplied through the regeneration water passage B to the softening water tank 110, A pump 140 disposed in a water supply passage B connecting the switching valve 130 and the water softening tank 110 and a pump 140 disposed in the water supply tank B, A sensor 160, a concentration sensor 170 for measuring the ion concentration of the outgoing soft water, and a flow sensor 150. The sensor 160 is connected to the sensor 150, And a control unit 180 electrically connected to the control unit.

The control unit 180 is also electrically connected to the flow path switching valve 130, the pump 140, and the concentration sensor 170 to control the operation.

Active control method of pump using flow sensor

Hereinafter, with reference to FIG. 1 to FIG. 3, a method of active control of a pump using a flow sensor according to the present invention will be described.

First, an operation signal is applied to the water softener 100 to which the flow sensor 150 is applied (S10).

The control unit 180 electrically connected to the pump 140 and the flow rate sensor 150 of the water softener 100 determines whether the pump 140 is in an inoperative state (S12). The step S12 is to prevent unnecessary energy wastage and overload, which is caused by the operation of the pump 140 in the state where there is no raw water available to the water softener 100.

Thereafter, in step S12, it is checked whether the pump 140 is stopped, and then the water bulb 10 is opened (S14). The step S14 may be performed by the user or automatically by the control unit 180. [

Then, the control unit 180 determines whether the raw water is introduced into the water softener 100 through the sensing of the raw water in the flow sensor 150 (S16). The flow sensor 150 may be disposed on the inlet flow passage A or may be disposed on the inlet flow passage A and the outlet flow passage D, .

If the amount of water measured by the flow sensor 150 does not reach the preset minimum inflow amount in the control unit 180 even after the predetermined time elapses in step S16, the water softener system is stopped and checked (S18) An activating signal is applied to the water softener 100.

If it is determined in step S16 that the raw water amount measured by the flow sensor 150 exceeds the minimum inflow amount set in the controller 180, the flow rate measured in real time is measured (S20). Here, when the flow sensor 150 is disposed on the inlet flow path A, the flow rate obtained in real time is measured.

The control unit 180 determines the degree of the water flow measured through the flow sensor 150 in comparison with the predetermined reference water flow rate (S22).

If the water flow rate measured through the flow rate sensor 150 is less than the reference water flow rate set in the controller 180, the flow rate of the raw water is increased by operating the pump 140 (S24).

On the other hand, when the water flow rate measured through the flow rate sensor 150 exceeds the reference water flow rate set in the controller 180, the pump 140 is not operated since the reference water flow rate is satisfied.

Hereinafter, a process of determining the on / off point of the pump 140 based on the actual flow rate data measured according to the input water pressure and the operation of the pump in the water softener 100 to which the present invention is applied will be described.

First, Table 1 below shows the flow rate reduction rate data according to the inlet pressure and the pump on / off state.

Water pressure
(kgf / cm2) Inflow of raw water
LPM Pump off state Pump on state Amount of water
LPM Flow rate reduction (%) Amount of water
LPM flux
Decrease (%) 0.7 4.3 3.7 14 6.3 -47 1.0 5.2 4.4 15 7 -35 2.0 7.9 6.2 22 8.8 -11 3.0 10 8.2 18 10 0 3.9 10.6 8.7 18 10.8 -2

As shown in Table 1, it can be seen that the rate of decrease of the flow rate of the raw water is 14% to 22%, which is about 20%, in the pump off state.

On the other hand, when the pump on state is observed, the flow rate reduction rate is considerably low when the inlet water pressure is low from 0.7 (kgf / cm2) to 1.0 (kgf / cm2) The flow rate reduction rate is relatively high.

That is, when the pump is operated under a low water pressure, it is possible to increase the amount of the raw water to be supplied, but if the water pressure is higher than a certain level, the fluctuation of the raw water quantity to be obtained is not large.

Table 2 below shows the process of controlling the output of the pump 140 according to the quantity of raw water on the basis of the results in Table 1 above.

Inflow of raw water
LPM When the pump is off
Flow rate LPM Pump
Output regulation Calibrated flow
LPM 4.3 3.7 100W 6.3 5.2 4.4 100W 7 7.9 6.2 off 6.2 10 8.2 off 8.2 10.6 8.7 off 8.7

Referring to Table 2, the reference output in the on state of the pump 140 is set to 100W. In the present invention, it is preferable to set the reference output in the range of 90W to 110W in consideration of the corrected water flow rate and the pump design error.

If the flow rate of the raw water is less than 5.2 LPM, the pump 140 is operated to maintain the corrected flow rate above 6.0 LPM. On the other hand, when the inflow amount of the raw water is 7.9 LPM or more, it can be seen that the amount of water is maintained at 6.0 LPM or more even when the pump 140 is not operated.

As described above, in the active control method of a pump using the flow sensor according to the present invention, after the raw water flowing into the water softener is recognized by the flow sensor, when the measured raw water is equal to or more than the predetermined reference flow rate, Thereby regulating the output of the pump. This reduces the load that can be overloaded to the pump, thereby improving the life of the pump and reducing noise.

Although the preferred embodiments of the present invention have been described, the present invention is not limited to the specific embodiments described above. It will be apparent to those skilled in the art that numerous modifications and variations can be made in the present invention without departing from the spirit or scope of the appended claims. And equivalents should also be considered to be within the scope of the present invention.

100: Water softener
110: Training tank
120: regeneration tank
130: Flow path switching valve
140: pump
150: Flow sensor
160: Filter
170: Concentration Detector
180:

Claims (5)

(a) initiating operation of the water softener;
(b) checking the non-operating state of the pump installed in the water softener through the control unit;
(c) judging whether or not the raw water is flowing into the water softener through the flow sensor detected in the flow sensor installed in the water softener;
(d) measuring a flow rate obtained in real time via the flow sensor;
(e) determining whether the flow rate measured through the flow rate sensor satisfies a predetermined reference flow rate to the control unit; And
(f) when the measured water flow rate is less than the reference water flow rate, the control unit applies an operation signal to the pump,
After the step (b)
(b1) opening a water outlet connected to the water softener; Further comprising:
In the step (c)
When the amount of water measured by the flow sensor does not reach the predetermined minimum inflow amount by the control unit after a predetermined time has elapsed, the operation of the water softener is stopped,
Wherein when the raw water measured by the flow sensor exceeds a predetermined minimum inflow amount by the control unit,
Wherein, in the step (f), when the measured water flow rate is equal to or greater than the reference water flow rate,
Active Control Method of Pump Using Flow Sensor.
delete The method according to claim 1,
Wherein the flow sensor is disposed in a water inlet channel or an water outlet channel of the water softener.
Active Control Method of Pump Using Flow Sensor.
The method according to claim 1,
Characterized in that the output of the pump is in the range of 90W to 110W.
Active Control Method of Pump Using Flow Sensor.
5. The method of claim 4,
Wherein the reference water flow rate is 6.0 LPM.
Active Control Method of Pump Using Flow Sensor.

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