KR20030077328A - A automatic injection device of medicinal fluid in a small scale waterworks and its controlling method - Google Patents

Abstract

PURPOSE: Provided is an automatic chemical feeder for continuously feeding chemicals into ground water while the ground water flows to a water distribution plant through a pipe by a water transportation pump, informing a manager of running out of chemicals, and preventing rupture of the pipe in winter. CONSTITUTION: The feeder comprises a chemical mixer(1) with a tank(11), a high water level sensor(12), a low water level sensor(13), and a chemical mixing motor(14) having a propeller(16) connected to a shaft(15) and installed at an upper portion of the tank(11); a control unit(2) for informing a manager of running out of chemicals when the low water level sensor(13) generates a predetermined signal and controlling valves; a start switch(21) for starting water supply operation when chemicals are refilled; a first valve (V1) installed between a ground water transportation pipe(7) and the chemical mixer(1) and selectively opened and closed so as for ground water to be introduced into the tank(11); a second valve (V2) for controlling flow of chemicals from the chemical mixer(1) to a first chemical injector(3); the first chemical injector(3) having a chemical dose adjusting nozzle(31) and being installed at an outlet of the second valve (V2); a third and a fourth valves (V3,V4) for controlling movement of chemicals being transferred from the first chemical injector(3) to a second chemical injector(4); and the second chemical injector(4) for injecting chemicals into the ground water transportation pipe(7).

Description

Automatic liquid injector in simple tap water and its control method {A AUTOMATIC INJECTION DEVICE OF MEDICINAL FLUID IN A SMALL SCALE WATERWORKS AND ITS CONTROLLING METHOD}

The present invention relates to an automatic liquid input device and a control method thereof in a simple tap water, and more particularly, to the appropriate amount of groundwater to be sent to the drainage by using an underwater pump in a simple water supply facility using a groundwater as a water supply by installing a well A chemical solution (ie, disinfectant such as chlorine hypochlorite) is invented so that it can be added automatically.

In general, in a simple water supply facility where a well is installed underground and uses an underwater motor to pull ground water out and send it to a drain, and then use it as drinking water, when drinking the ground water itself as it is, various foreign substances or substances of various ingredients are harmful to the human body. Since it may be contained, a certain amount of chemicals such as chlorine hypochlorite is added to disinfect it and then used as drinking water.

However, in the related art, a fixed-quantity injection pump is installed in the groundwater water supply pipe installed between the submersible pump and the drainage basin to dilute and inject the chemicals pulverized into powder, or install a non-powered solid injection unit on the roof of the drainage basin. In order to meet the amount of water being sent to the reservoir, a solid chemical is introduced.

However, when the metering pump is not operated, the chemicals diluted in the water are solidified when the metering pump does not work, and are fixed to the seal of the metering pump, leading to motor failure, and insulating the chemical storage container including the metering pump. There is a risk of freezing and freezing of the winter chemicals, and since the metering pump itself is installed directly on the groundwater water supply pipe and is controlled separately in response to the operation of the water pump, it cannot be controlled in connection with the simple water supply facility. When consumed, there is a problem that the administrator cannot immediately recognize and supplement it.

In addition, the non-powered solid direct input device directly injects the solid chemicals in response to the water level of the drainage, so when a large amount of water is consumed within a short time, water is consumed before the solid chemicals are dissolved. Of course, there is a problem that can not be used as drinking water due to too many drugs in the water melted, and also there is a problem that can not be immediately recognized and supplemented by the manager when the drug is consumed.

The present invention has been made in order to solve such a conventional problem, by installing several valves, chemical mixture and first and second chemical injector on the groundwater inlet pipe connected to the drainage in the submersible pump to the drainage by the submersible pump It can continuously supply a certain amount of chemicals in the groundwater that is sent, and notify the manager when the chemicals are consumed so that they can immediately replenish the chemicals, and also automatically put the chemicals in the simplified water supply to protect them from freezing in winter. It is an object of the present invention to provide an apparatus and a control method thereof.

The object of the present invention described above is provided with a high and low water level detection sensor in the upper and lower portions in the tank having a predetermined volume, and the chemical liquid mixing motor provided with a propeller on its axis is provided on the upper surface portion of the tank, the upper surface portion of the tank A chemical liquid mixer having a chemical inlet and a water gauge; A control unit which notifies the manager that the chemical liquid has been dropped, and controls the driving of the valves when a predetermined output signal is generated by the low level detection sensor of the chemical liquid mixer; A start switch for allowing the manager to replenish the medicine in the chemical mixer and receive water; A first valve configured to be selectively opened and closed under the control of a controller in a state installed between the groundwater water supply pipe installed as a drainage point in the submersible pump and the chemical liquid mixer to allow the groundwater to automatically flow into the tank; A second valve for controlling the movement of the chemical liquid in the chemical liquid mixer to the primary chemical liquid injector side; A primary chemical liquid injector having a chemical liquid input quantity adjusting device for allowing a manager to adjust the quantity of the chemical liquid and connected to the second valve outlet; Third and fourth valves controlling the movement of the chemical liquid discharged from the primary chemical liquid injector and moved to the secondary chemical liquid injector side; A secondary chemical liquid injector having a predetermined volume and dewatering the chemical liquid moved from the primary chemical liquid injector side through the third and fourth valves and discharged to the groundwater water supply pipe side; It can be achieved by configuring a fifth valve that is provided at the outlet of the secondary chemical liquid injector to supply a predetermined amount of the chemical liquid to the ground water flow moving on the ground water pipe.

Therefore, it is possible to continuously supply a certain amount of chemical liquid into the groundwater that is sent to the drainage by the submersible pump, and the manager can replenish the medicine with the chemical mixture in a short time because this status is immediately known to the manager when the liquid is consumed. In addition, it is possible to prevent the stagnation of water in each groundwater pipeline, which can prevent the freezing of various components of the winter water supply system.

2 is a block diagram of an apparatus of the present invention.

2 is a flowchart for explaining the method of the present invention.

Explanation of symbols on the main parts of the drawings

1: Chemical Mixer 2: Control Unit

3: first chemical injector 4: second chemical injector

5: submersible pump 6: drainage basin

7: groundwater water supply pipe 8: pipe

9: check valve 10: manual valve

11: tank 12: high and low water level sensor

14: chemical liquid mixing motor 15: chemical liquid mixing shaft

16: propeller 17: chemical inlet

18: water gauge 21: start switch

31: chemical liquid injection quantity adjustment port V1-V5: first to fifth valve

Hereinafter, preferred embodiments of the present invention will be described in detail with reference to the accompanying drawings.

1 shows a configuration diagram of the apparatus of the present invention.

According to this, the high water level and the low water level detection sensors 12 and 13 are respectively provided in the upper and lower portions of the tank 11 having a predetermined volume, and the propeller 16 is disposed on the shaft 15 at the upper surface of the tank 11. A chemical liquid mixing motor 14 is provided, and a chemical liquid mixer 1 having a chemical inlet 17 and a water level gauge 18 at an upper surface of the tank 11;

A control unit (2) for notifying the manager that the chemical liquid has been dropped while a predetermined output signal is generated from the low water level detection sensor (13) of the chemical liquid mixer (1);

A start switch 21 for allowing a manager to replenish the medicine to the chemical mixer 1 and receive water;

Underground water tank (11) is selectively opened and closed under the control of the control unit (2) in the state installed between the groundwater water pipe (7) and the chemical liquid mixer (1) installed as a drain (6) in the submersible pump (5) A first valve (V1) for automatically introducing into;

A second valve (V2) for controlling the movement of the chemical liquid in the chemical liquid mixer (1) toward the primary chemical liquid injector (3);

A primary chemical liquid injector (3) having a chemical liquid input quantity adjusting device (31) for allowing a manager to control the quantity of the chemical liquid and connected to an outlet of the second valve (V2);

Third and fourth valves (V3) (V4) for controlling the movement of the quantity of chemical liquid discharged from the primary chemical liquid injector (3) and moved to the secondary chemical liquid injector (4);

Secondary water which has a predetermined volume and dehydrates the quantity of chemical liquid which is transferred from the primary chemical liquid injector 3 side through the third and fourth valves V3 and V4 and is discharged to the groundwater water supply pipe 7 side. A chemical liquid injector 4;

It is characterized in that the fifth valve (V5) is provided at the outlet of the secondary chemical liquid injector (4) for supplying a predetermined amount of the chemical liquid into the ground water which is moved on the ground water pipe (7).

Here, reference numeral 10 is a manual valve installed on the groundwater water supply pipe 7 so that the manager can block the groundwater water pipe freely, and 9 is a water valve to prevent the water flown back to the well side. Is a check valve.

2 shows a flowchart for explaining the method of the present invention.

According to this, the process of detecting whether the water level in the tank 11 of the chemical liquid mixer 1 in the low-level state in the control unit 2;

If the water level in the tank 11 is low as a result of the detection, notifying the manager through a communication line or the like and continuing detecting whether the manager “turns on” the start switch 21 after replenishing the chemicals;

As a result of the above detection, when the start switch 21 is "ON", the submersible pump 5 is "ON", the 1st valve V1 is "ON", and it detects whether the water level in the tank 11 becomes a full water level. Process;

As a result of the above detection, when the water pump is driven for a predetermined time or more and the water level in the tank 11 is detected as the full water level, the chemical liquid mixing motor 14 is turned "on" for a predetermined time, and the water pump 5 is "off". Turning off the first valve V1 after a predetermined time;

As a result of the above detection, if the water level in the tank 11 is not a low water level or if the submersible pump 5 and the first valve V1 are sequentially " off " as described above, it is continued whether the water level of the reservoir 6 is low. Detecting;

As a result of the above detection, if the water level of the drainage basin 6 is a low level, the submersible pump 5 is "on", the second valve V2 is "on", and a certain amount of chemical is sufficiently supplied by the primary chemical injector 3. After a certain time of movement, the second valve V2 is "off" again, and after a certain time, the third and fourth valves V3 and V4 are turned "on", and the chemical liquid contained in the primary chemical injector 3 is turned on. The second and second chemical injection injector (4), and after a certain period of time that the chemical liquid contained in the primary chemical injection (3) is sufficiently transferred to the secondary chemical injection (4) has elapsed the third and fourth valve (V3) (4) in a state in which a predetermined amount of chemical liquid is introduced into the groundwater that is delivered to the drainage through the groundwater inlet pipe 7 after a certain time by "turning off" (V4) and "on" the fifth valve (V5). Continuously detecting whether the water level reaches the full water level;

As a result of the above detection, when the reservoir 6 becomes full, the submersible pump 5 is "off". After a certain time has elapsed, the fifth valve V5 is also "off" and the tank 11 and the reservoir 6 The process of returning to the process of detecting whether the water level of the low level; characterized in that consisting of.

Referring to the effect of the present invention made of such a configuration and steps as follows.

First, the control unit 2 determines whether the water level in the tank 11 is a low level through the low water level detection sensor 13 installed in the bottom of the tank 11 of the chemical liquid mixer 1.

As a result, if the water level in the tank 11 is a low water level, the manager can notify the fact through a wired or wireless communication line, so that the manager can replenish the medicine.

As such, the manager is informed that the chemical liquid has dropped into the chemical liquid mixer 1, and the manager recognizes the chemical liquid through the chemical inlet 17 installed above the tank 11, and then starts the switch 21. ) "On", the control unit 2 "on" the submersible pump 5 installed in the well 8 and "on" the first valve (V1), so that the groundwater into the tank Inflow automatically.

In this way, while water is being filled in the tank 11 containing the chemicals by the groundwater, the control unit 2 provides the water level in the tank 11 through the full water level detection sensor 12 installed above the tank 11. Will continue to detect whether the water level is full.

As such, the submersible pump 5 is driven for a predetermined time or more in the state where the first valve V1 is "on". Thus, when the water level in the tank 11 reaches the full water level, the controller 2 propellers on the shaft 15. The chemical liquid mixing motor 14 provided with the " 16 " is " on " for a predetermined time so that the chemicals are evenly dissolved in the water, and the " off " Turns off V1).

The reason for the " off " of the first valve V1 after a certain time after the " off " of the submersible pump 5 is that in the small pipe that connects the tank 11 and the groundwater water pipe 7 This is to allow all the water to escape to the submersible pump 5 side, and thus exists in the tube between the tank 11 and the groundwater inlet pipe 7 (that is, around the first valve V1). By removing all the water, it is possible to prevent the occurrence of freezing in this area in winter.

At this time, the control unit 2 is not shown on the flowchart in order to prevent the chemicals in the tank 11 from going out or its distribution is not changed, but the chemical liquid mixing motor 14 is intermittently determined for a predetermined time. It works

On the other hand, if the water level in the tank 11 is not a low water level as detected by the control unit 2, or when the submersible pump 5 and the first valve (V1) is sequentially "off" as described above, groundwater is sent to the reservoir In order to determine whether or not to be received, the output signal of the low water level detection sensor (not shown) installed in the reservoir 6 is inputted to continuously detect whether the water level is low.

As a result of detecting the water level of the drainage basin 6 as described above, when the water level is low, the second valve V2 is fixed while the submersible pump 5 is turned on and the groundwater is transported to the drainage basin 6 through the groundwater inlet pipe 7. “On” during the time period allows the chemical liquid in the tank 11 to be accurately moved by a predetermined amount to the primary chemical liquid injector 3 having the volume determined by the manager.

Subsequently, the control unit 2 "offs" the second valve V2 again after a certain time has elapsed, waits for a predetermined time, and then exits the primary chemical injector 3 and the inlet side of the secondary chemical injector 4. The third and fourth valves V3 and V4 provided at the " on " are turned on for a predetermined time so that the chemical liquid contained in the primary chemical injector 3 is moved to the secondary chemical injector 4.

At this time, the volume of the secondary chemical injector (4) has a volume larger than the maximum volume of the primary chemical injector (3) having a configuration that can change its capacity to quantitatively contained in the primary chemical injector (3) The chemical liquid was allowed to be sufficiently transferred to the secondary chemical liquid injector (4).

On the other hand, the third and fourth valves (V3) and V4 as described above when the predetermined amount of time that the chemical liquid contained in the primary chemical injector 3 is sufficiently transferred to the secondary chemical injector (4) has elapsed, the third and fourth The chemical liquid moved into the secondary chemical liquid injector 4 by "turning off" the fourth valve V3 and V4 and "on" the fifth valve V5 after a certain time is transferred to the drainage through the groundwater inlet pipe 7. Allow a constant amount of water to be continuously pumped into the groundwater.

In this way, while the groundwater is automatically supplied to the reservoir 6 by a predetermined amount, the control unit 2 keeps receiving the output signal of the full water level detection sensor installed in the reservoir 6 although not shown in the drawing. Detects whether is full water level.

As a result of detecting the water level of the drainage basin at the control unit 2 as described above, when the water level of the drainage basin 6 reaches the full level, the water pump 5 is "off" and the rear part of the check valve 9 and the submersible pump ( 5) Wait for a while for the groundwater present in the groundwater water supply pipe 7 and the remaining chemical liquid which may remain in the secondary chemical injector 4 to the test side, and then turn off the fifth valve V5. Let's do it.

In this way, by driving the submersible pump (5), the groundwater is fed to the drainage basin (6), the chemical liquid is automatically put in, and the drainage basin (6) becomes full water level to shut off the operation of the submersible pump (5) and after a certain time the fifth valve ( V5) to close the groundwater present in the groundwater inlet pipe 7 between the rear end of the check valve 9 and the submersible pump 5 and any remaining chemical liquid that may remain in the secondary chemical injector 4 to the well side. By doing so, it is possible to prevent the freezing of these areas in winter.

As described above, according to the present invention, a plurality of valves, a chemical mixer, and a first and second chemical injectors are installed on the groundwater inlet pipe connected to the drainage in the submersible pump in the well, and a predetermined amount of water in the groundwater being sent to the drainage by the underwater pump. As it can supply the medicine continuously, it can prevent the health and hygiene problems caused by cooling the undisinfected ground water, and can immediately replenish the medicine by contacting the manager immediately when the medicine is consumed. In addition, it is a very useful invention that can prevent the stagnation of water in each tube in advance and prevent the freezing of various components constituting the winter water supply system in advance.

Claims (2)

A chemical liquid having a high water level and a low water level detection sensor 12 (13) 13 provided on the upper and lower portions of the tank 11 having a predetermined volume, and a propeller 16 on the shaft 15 on the upper surface of the tank 11, respectively. The mixing motor 14 is installed, the chemical liquid mixer (1) having a chemical inlet (17) and a water gauge (18) in the upper surface portion of the tank (11); A control unit (2) for notifying the manager that the chemical liquid has been dropped while a predetermined output signal is generated from the low water level detection sensor (13) of the chemical liquid mixer (1); A start switch 21 for allowing a manager to replenish the medicine to the chemical mixer 1 and receive water; Underground water tank (11) is selectively opened and closed under the control of the control unit (2) in the state installed between the groundwater water pipe (7) and the chemical liquid mixer (1) installed as a drain (6) in the submersible pump (5) A first valve (V1) for automatically introducing into; A second valve (V2) for controlling the movement of the chemical liquid in the chemical liquid mixer (1) toward the primary chemical liquid injector (3); A primary chemical liquid injector (3) having a chemical liquid input quantity adjusting device (31) for allowing a manager to control the quantity of the chemical liquid and connected to an outlet of the second valve (V2); Third and fourth valves (V3) (V4) for controlling the movement of the quantity of chemical liquid discharged from the primary chemical liquid injector (3) and moved to the secondary chemical liquid injector (4); Secondary water which has a predetermined volume and dehydrates the quantity of chemical liquid which is transferred from the primary chemical liquid injector 3 side through the third and fourth valves V3 and V4 and is discharged to the groundwater water supply pipe 7 side. A chemical liquid injector 4; Chemical solution automatic injection in simple tap water, which is installed at the outlet of the secondary chemical liquid injector (4) and is provided with a fifth valve (V5) for supplying a predetermined amount of chemical liquid into the groundwater moving on the groundwater water pipe (7). Device. Detecting whether the water level in the tank 11 of the chemical liquid mixer 1 is in a low water level by the control unit 2; If the water level in the tank 11 is low as a result of the detection, notifying the manager through a communication line or the like and continuing detecting whether the manager “turns on” the start switch 21 after replenishing the chemicals; As a result of the above detection, when the start switch 21 is "ON", the submersible pump 5 is "ON", the 1st valve V1 is "ON", and it detects whether the water level in the tank 11 becomes a full water level. Process; As a result of the above detection, when the water pump is driven for a predetermined time or more and the water level in the tank 11 is detected as the full water level, the chemical liquid mixing motor 14 is turned "on" for a predetermined time, and the water pump 5 is "off". Turning off the first valve V1 after a predetermined time; As a result of the above detection, if the water level in the tank 11 is not a low water level or if the submersible pump 5 and the first valve V1 are sequentially " off " as described above, it is continued whether the water level of the reservoir 6 is low. Detecting; As a result of the above detection, if the water level of the drainage basin 6 is a low level, the submersible pump 5 is "on", the second valve V2 is "on", and a certain amount of chemical is sufficiently supplied by the primary chemical injector 3. After a certain time of movement, the second valve V2 is "off" again, and after a certain time, the third and fourth valves V3 and V4 are turned "on", and the chemical liquid contained in the primary chemical injector 3 is turned on. The second and second chemical injection injector (4), and after a certain period of time that the chemical liquid contained in the primary chemical injection (3) is sufficiently transferred to the secondary chemical injection (4) has elapsed the third and fourth valve (V3) (4) in a state in which a predetermined amount of chemical liquid is introduced into the groundwater that is delivered to the drainage through the groundwater inlet pipe 7 after a certain time by "turning off" (V4) and "on" the fifth valve (V5). Continuously detecting whether the water level reaches the full water level; As a result of the above detection, when the reservoir 6 becomes full, the submersible pump 5 is "off". After a certain time has elapsed, the fifth valve V5 is also "off" and the tank 11 and the reservoir 6 The process of returning to the process of detecting whether the water level of the low level; control method of the automatic chemical liquid input device in a simple tap water, characterized in that consisting of.