KR20180060527A - Auto Tube Pump for Sodium Hydroxide Injection - Google Patents

Abstract

The present invention relates to an auto tube pump for injecting sodium hydroxide. In particular, the present invention is installed to be associated with a chemical tank in which a sodium hydroxide solution is stored, a raw water supply pipe through which raw water that requires adjustment of pH flows, and a diluted water tank by a pipeline and is adapted to adjust a pH of raw water. The auto tube pump includes: a housing provided with a display window and a control board on a front surface thereof and provided with a digital input/output port and an analog input/output port on a rear surface thereof; a control unit installed in the interior of the housing, and electrically connected to the display window and the control board and electrically connected to the digital input/output port and the analog input/output port as well; a DC power supply device that supplies electric power to the control unit; and a tube pressing part controlled by the control unit and configured to feed a predetermined amount of sodium hydroxide by pressing an elastic tube through which the sodium hydroxide solution flows. The control unit receives a signal on whether the sodium hydroxide solution is leaked and whether the pipeline is blocked through the digital input/output port and sends a signal that outputs a warning signal when the leakage of the solution is detected or the pipeline is blocked, and receives information on the amount of supplied raw water, the amount of introduced sodium hydroxide solution, the injection rate of the raw water, the injection rate of the sodium hydroxide solution, and the pH value through the analog input/output port. According to the present invention, an operation situation and a work progress situation of the auto tube pump may be recognized in detail, and the pH concentration of the raw water may be easily adjusted to a desired value by properly introducing the sodium hydroxide solution.

Description

[0001] The present invention relates to an auto tube pump for injecting caustic soda,

The present invention relates to an autotube pump for injecting caustic soda, and more particularly, to an autotube pump for caustic soda injection used for controlling the pH concentration of raw water in a water supply system, a wastewater treatment plant, a swimming pool, and a water purification plant.

In general, the tube pump, which is a metering pump, is used for continuously transferring a certain amount of medicine. It is used to precisely control the mixing ratio in a precision industry including semiconductor, food, and medicine manufacturing. It is used to purify the raw water or purify the wastewater such as industrial wastewater or livestock manure to a level that can discharge the supplied chemicals to the specified amount exactly.

Such a conventional tube pump has a high production cost and requires a proper amount of chemicals depending on the amount of raw water to be treated and the concentration of contaminants. Such an operation is not easy, and leakage of chemicals or clogging of pipes can not be easily understood There was a problem.

Application No. 10-2007-0076644 (registration number: 10-0904050, title of the invention: automatic medicine injector)

SUMMARY OF THE INVENTION The present invention has been made in order to solve the problems of the prior art described above, and it is an object of the present invention to provide a compact and lightweight, low cost and easy to understand operation status and operation progress, The present invention provides an autocube pump for caustic soda injection.

In order to solve the above problems, an autotube pump for injecting caustic soda according to the present invention is installed in a pipeline with a chemical tank storing a caustic soda solution, a raw water supply pipe and a dilution water tank, Lt; / RTI > A housing having a display window and an operation panel on its front side and having a digital input / output port and an analog input / output port on its rear side; A control unit installed in the housing and electrically connected to the display window and the operation panel, and electrically connected to the digital input / output port and the analog input / output port; A DC power supply for supplying power to the control unit; A control unit for controlling the pressure of the caustic soda solution through the digital input / output port, and a control unit for controlling the pressure of the caustic soda solution, And a signal for outputting an alarm signal when the leaked liquid is blocked or the pipeline is clogged, and the supply amount of the raw water, the caustic soda solution amount, the raw water The injection rate of the caustic soda solution, and the pH value.

Here, the tube pressing portion includes a servo driver installed inside the housing; A servo motor controlled by the servo driver; A planetary gear reducer connected to a motor shaft of the servo motor to receive power; And a head cover protruding through the front surface of the housing and provided with a compression roller for receiving the power from the planetary gear reducer and pressing the elastic tube while rotating.

The operation panel includes an operation mode switch for automatically or manually selecting an operation mode; A range setting switch for inputting a setting value for the raw water treatment quantity, the pH target value, the maximum caustic soda solution injection amount, and the elastic tube use time; A start operation switch for starting the automatic tube pump during manual operation; An up switch for increasing the injection amount of raw water and caustic soda solution during manual operation; A stop switch for stopping the autotube pump during manual operation; A down switch for down-dosing the amount of raw water and caustic soda solution during manual operation; An enter switch for inputting the amount of the raw water and the caustic soda solution into the control unit during manual operation; An automatic / manual switch for automatically or manually selecting the injection rate of raw water; And an alarm reset switch for resetting after the generation of the alarm signal and after the replacement of the elastic tube.

The autotube pump for injecting caustic soda of the present invention having the above-described structure can be reduced in size, weight, cost, and precision.

In addition, various information and data are input through the digital input / output port and the analog input / output port, and a corresponding signal is output, thereby not only knowing the operation status and operation progress of the autotube pump, And a signal relating to the flow rate of the raw water and the caustic soda solution, and automatically putting an appropriate amount of caustic soda solution into the raw water, so that the raw water can be easily adjusted to a desired pH concentration.

1 is a view showing an embodiment in which an autotube pump for injecting caustic soda according to the present invention is installed.
2 is a perspective view of an autotube pump for injecting caustic soda according to the present invention.
3 is a rear view of an autotube pump for caustic soda injection according to the present invention.
4 is a plan view of an autotube pump for injecting caustic soda according to the present invention.
5 is a view showing an operation panel of an autotube pump for injecting caustic soda according to the present invention.
FIG. 6 is a block diagram briefly showing a connection relationship between a controller and other components of an autotube pump for injecting caustic soda according to the present invention. FIG.

Hereinafter, embodiments of an autotube pump for injecting caustic soda according to the present invention will be described in detail with reference to the accompanying drawings.

1 is a view showing an embodiment in which an autotube pump for injecting caustic soda according to the present invention is installed.

2 is a perspective view of an autotube pump for injecting caustic soda according to the present invention, FIG. 3 is a rear view of an autotube pump for injecting caustic soda according to the present invention, and FIG. 4 is a cross- FIG. 5 is a view showing an operation panel of an autotube pump for injecting caustic soda according to the present invention. FIG.

6 is a block diagram briefly showing a connection relationship between the controller and other components of the autotube pump for injecting caustic soda according to the present invention.

The autocube pump for injecting caustic soda according to the present invention is used for controlling the pH of raw water by injecting caustic soda solution into raw water used in a water supply system, a wastewater treatment plant, a swimming pool, a water purification plant and various industrial sites, A chemical tank T1 storing a soda solution, and a raw water supply pipe (P) and a dilution water tank (T2) through which raw water requiring pH adjustment flows are connected in a pipeline.

The control unit 20 includes a housing 10, a DC power supply 30 for supplying power to the control unit 20, And the tube 40 controlled by the tube 40 is constituted.

The housing 10 constitutes the external shape of the autotube pump for injecting caustic soda according to the present invention, and its approximate shape takes the form of a hexahedron.

The housing 10 is assembled after the upper housing 10a, the central housing 10b and the lower housing 10c are manufactured separately. That is, the upper housing 10a is disposed on the upper side of the center housing 10b, the lower housing 10c is disposed on the lower side, and the assembly bolts are fastened to complete the housing 10.

The housing 10 constructed as above has a display window 11, an operation panel 12, a digital input / output port 13, an analog input / output port 14, a cooling fan 15 and an air filter 16 And a switch 17 incorporating a noise filter and a fuse.

The display window 11 is provided on the front side of the housing 10 and displays the overall operation status and various set values of the auto-tube pump according to the present invention. The main contents of the display window 11 are whether the operation mode is automatic operation or manual operation , Various data during automatic operation and manual operation.

The various operation states and set values displayed on the display window 11 include a range of the treated water quantity of the raw water, a pH target value of the raw water after the raw water is processed, a pH concentration meter range, a maximum caustic soda A range of drug flowmeters that measure the amount of solution injected, the time of elastic tube use, and the amount of caustic soda solution injected.

The data displayed during the automatic operation includes data on the amount of raw water, the pH value of the raw water, the pH target value of the raw water after the raw water is treated, the amount of caustic soda solution injected, And the amount of caustic soda solution injected.

The operation panel 12 is equipped with various switches for operating the autotube pump according to the present invention and is provided on the lower front side of the housing 10.

The operation panel 12 includes an operation mode switch 12a, a range setting switch 12b, a start operation switch 12c, an up switch 12d, a stop switch 12e, a down switch 12f An enter switch 12g, an automatic / manual switch 12h, and an alarm reset switch 12i.

The operation mode switch 12a is a switch for selecting whether the operation mode is an automatic operation mode or a manual operation mode.

The range setting switch 12b is used to input the raw water treatment amount, the pH target value of the raw water to be targeted after processing the raw water, the maximum caustic soda solution injection amount, and the setting value for the elastic tube use time.

The starting operation switch 12c is a switch for starting the automatic tube pump according to the present invention during manual operation.

The up switch 12d is a switch for increasing the injection amount of raw water and the injection amount of caustic soda solution in the manual operation.

The stop switch 12e is a switch for stopping the autotube pump according to the present invention during manual operation.

The down switch 12f is a switch for reducing the injection amount of raw water and the injection amount of caustic soda solution during manual operation.

The Enter switch 12g is a switch used when inputting the raw water injection amount and the caustic soda solution injection amount into the controller 20 during manual operation.

The automatic / manual switch 12h is a switch used to automatically or manually select the injection rate of the raw water defined as the amount of raw water supplied per unit time.

The alarm reset switch 12i is used to reset the alarm signal after the generation of the alarm signal and after the replacement of the elastic tube 50. [

Since the elastic tube 50 is made of a flexible material, a specific portion is torn and leaked through the elastic tube 50. In addition, the pipeline connecting the autotube pump of the present invention with other devices may be clogged, so that caustic soda solution, raw water, dilution water, etc. may not flow. At this time, an alarm signal is outputted by the signal of the control unit 20. [ An alarm reset switch 12i is used to reset the alarm signal to the initial state after the alarm signal is output or after the elastic tube 50 is replaced.

The alarm signal may be displayed by an auditory means such as the siren 21 or may be displayed through a visual means such as a three-color beacon light 22 or alternatively may be displayed by a siren 21 and a three- ). ≪ / RTI > The siren 21 and the tri-color beacon light 22 may be electrically connected to the digital input / output port 13 and connected to the control unit 20.

The digital input / output port 13 is provided on the rear side of the housing 10 and the control unit 20 transmits a signal indicating whether the caustic soda solution leaks through the digital input / output port 13 and whether the pipeline is clogged Receives an input, and sends a signal to output an alarm signal when leakage is detected or the pipeline is clogged.

In addition, various sensors including a leak detector 13a and an area type flow meter 13b are electrically connected to the digital input / output port 13, and the controller 20 controls the flow rate of the auto- The pump receives a signal as to whether each component of the installed system is operating properly.

That is, the leak detector 13a recognizes that the caustic soda solution does not leak from the elastic tube 50 and sends the signal to the controller 20, and the area type flow meter 13b is a float floating up by the fluid. The control unit 20 detects the clogging of the pipe when it sinks on the floor. The area type flow meter 13b connected to the digital input / output port 13 is used for error detection for detecting clogging or the like of the piping.

The controller 20 is connected to the analog input / output port 14 through the analog input / output port 14 to supply the raw water, the caustic soda solution, the raw water, The rate of caustic soda solution injection, the pH value of the raw water, and the pH target value of the raw water after the treatment.

More specifically, the analog input / output port 14 is electrically connected to the area type flow meter 14a, and inputs information about the supply amount of the raw water to be treated and the caustic soda solution input amount measured by the area type flow meter 14a And receives information on the injection rate of the raw water and the injection rate of the caustic soda solution and is electrically connected to the pH concentration meter 14b to receive information on the pH value of the raw water and the pH target value of the raw water after the treatment.

When the above-described various information is inputted, the control unit 20 controls the supply amount of the raw water, the caustic soda solution amount, the raw water amount, And the feed rate of the caustic soda solution and the feed of the caustic soda solution are automatically performed.

The cooling fan 15 draws cold air from the outside to cool the inside of the housing 10, and then discharges the cooled air to the outside.

The air filter (16) filters the outside air flowing into the housing (10) by the cooling fan (15).

The switch 17 incorporates a noise filter and a fuse.

The control unit 20 generally controls the operation of the automatic tube pump according to the present invention and is electrically connected to the display window 11 and the operation panel 12 and to the digital input / And is electrically connected to the analog input / output port 14.

The pressurized portion 40 presses the resilient tube 50 through which the caustic soda solution flows to deliver a predetermined amount of caustic soda solution.

The tube pressing portion 40 includes a servo driver 41, a servo motor 42, a planetary gear reducer 43, and a head cover 44.

The servo driver 41 is installed inside the housing 10 and is electrically connected to the controller 20 and controlled by the controller 20.

The servo motor 42 is installed inside the housing 10 and is controlled by the servo driver 41.

The planetary gear reducer 43 is connected to the motor shaft of the servo motor 42 to receive power and decelerate the rotation speed.

The head cover 44 protrudes through the front surface of the housing 10, and a plurality of compression rollers are built therein. The compression roller built in the head cover 44 receives the power from the planetary gear reducer 43 and presses the elastic tube 50 while rotating. As the compression roller presses the elastic tube 50, the caustic soda solution in the elastic tube 50 is discharged by a certain amount. The caustic soda solution discharged to the outside is mixed with the raw water supplied through the raw water supply pipe (P) to raise the pH of the raw water to lower the acidity of the raw water.

10: housing 10a: upper housing
10b: central housing 10c: lower housing
11: display window 12: operator panel
12a: Operation mode switch 12b: Range setting switch
12c: Start operation switch 12d: Up switch
12e: stop switch 12f: down switch
12g: Enter switch 12h: Automatic / manual switch
12i: Alarm reset switch 13: Digital I / O port
13a: leak detector 13b: area type flow meter
14: Analog input / output port 14a: Area type flow meter
14b: pH densitometer 15: cooling fan
16: air filter 17: switch
20: control unit 21: siren
22: 3-color warning light 30: DC power supply
40: Tube pressing part 41: Servo driver
42: Servo motor 43: Planetary gear reducer
44: head cover 50: elastic tube
P: raw water supply pipe T1: chemical tank
T2: Dilution water tank

Claims (4)

(P) and a dilution water tank (T2) in which raw water having a pH value needs to be flowed is connected to the chemical tank (T1) storing the caustic soda solution to adjust the pH of the raw water.
A housing 10 having a display window 11 and an operation panel 12 on its front surface and a digital input / output port 13 and an analog input / output port 14 on the rear surface;
A control unit 20 installed in the housing 10 and electrically connected to the display window 11 and the operation panel 12 and electrically connected to the digital input / output port 13 and the analog input / output port 14;
A DC power supply unit 30 for supplying power to the control unit 20;
And a pressurizing part 40 which is controlled by the control part 20 and presses the elastic tube 50 through which the caustic soda solution flows to transfer a predetermined amount of the caustic soda solution,
The control unit 20 receives a signal indicating whether the caustic soda solution leaks through the digital input / output port 13 and whether the pipeline is clogged or not, and outputs a signal for outputting an alarm signal when leakage is detected or the pipeline is clogged And the information about the supply amount of the raw water, the caustic soda solution input amount, the injection rate of the raw water, the caustic soda solution injection rate and the pH value is inputted through the analog input / output port (14) Tube pump.
The method according to claim 1,
The tube pressing portion 40 includes a servo driver 41 installed inside the housing 10;
A servo motor 42 controlled by the servo driver 41;
A planetary gear reducer 43 connected to the motor shaft of the servo motor 42 to receive power;
And a head cover 44 protruding through the front surface of the housing 10 and containing a compression roller for receiving the power from the planetary gear reducer 43 and pressing the elastic tube 50 while rotating Autocube pump for caustic soda injection.
The method according to claim 1,
The operation panel 12 includes an operation mode switch 12a for automatically or manually selecting an operation mode;
A range setting switch 12b for inputting a setting value for the raw water treatment amount, the pH target value, the maximum caustic soda solution injection amount, and the elastic tube use time;
A start operation switch 12c for starting the automatic tube pump at the time of manual operation;
An up switch 12d for increasing the injection amount of raw water and caustic soda solution during manual operation;
A stop switch 12e for stopping the autotube pump during manual operation;
A down switch 12f for reducing the injection amount of the raw water and caustic soda solution during manual operation;
An enter switch 12g for inputting the amount of raw water and caustic soda solution into the control unit 20 during manual operation;
An automatic / manual switch 12h for automatically or manually selecting the injection rate of the raw water;
And an alarm reset switch (12i) for resetting after an alarm signal is generated and after replacement of the elastic tube (50).
The method according to claim 1,
Wherein the housing (10) further comprises a cooling fan (15), an air filter (16), and a switch (17) incorporating a noise filter and a fuse.

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