KR100904050B1 - A Auto Chemical Feeder - Google Patents

Abstract

The present invention is to mix the chemicals into the raw water to agglomerate and remove various foreign substances so that they can be supplied to the sedimentation basin. Automatic medicine injector with tube connection system consisting of four heads is installed at the base to supply chemicals to the ejector, and chemicals injected through automatic chemical injector are mixed and supplied with dilution water by ejector using normal Venturi principle. The present invention relates to an automatic chemical injector for purified water, wherein the chemical injected into raw water is an ejector using the Venturi principle by calculating an accurate amount by an automatic chemical injector using a tube interlocking method according to the treated water quantity and water quality. By mixing evenly with dilution water to increase coagulation and purification effect The liquid leakage detection means is provided at the lower side of the automatic chemical injector, and each unit can be operated efficiently by operating the leakage. The automatic chemical injector rotates the rotor assembly with rollers installed at equal intervals. The outer surface of the tube is compressed at regular intervals by the roller which passes repeatedly, and it sends out the correct amount of chemical, prevents the chemical from contaminating the automatic chemical injector, and replaces the tube without disassembling or cleaning the automatic chemical injector for precision. It can be maintained and easily maintained.

Drug supply pipe. Automatic drug injector. controller. Tube-operated pumps and servo motors. Planetary Gear Reducer. Servo driver. Multiple heads, bases. Leak detector. Ejector.

Description

Automatic Chemical Feeder {A Auto Chemical Feeder}

The present invention provides coagulants, organic polymer coagulants, caustic soda, polymers, and various chemicals such as chlorine, sodium hypochlorite and pH-regulating drugs, depending on the amount and quality of water, while supplying or circulating water to improve water quality in water purification plants or swimming pools. Is added to the raw water, each of the drug injector can be accurately measured the amount of the drug input, and relates to an automatic drug injector that can be added evenly mixed into the diluted drug.

In more detail, in sedimenting and filtering raw water and discharging it to a drainage basin, chemicals are mixed and mixed before the raw water is supplied to the sedimentation basin, and various kinds of foreign substances are aggregated and removed to be supplied to the sedimentation basin. Each chemical injected into raw water is provided with an automatic chemical injector equipped with multiple flow control pumps in a tube interlocking manner to calculate and supply the correct amount according to the treated water quantity and the water quality, and the multiple flow control The pump can be operated selectively (alternatively) for each aerodrome as needed (e.g. drug leakage, etc.), and the chemicals dispensed by automatic chemical injector can be supplied by diluting with dilution water, but using ejector using Venturi principle. Is to provide an automatic chemical injector that can be supplied evenly mixed with dilution water. .

As a conventional chemical injection device installed in a water purification plant or a swimming pool, Korean Patent Publication No. 2003-33129 "Automatic Coagulant Injection System" and Japanese Patent Publication No. 2003-33415 "Automatic Drug Injection System" are known. have.

[0003] The "automatic flocculant injection system" discloses that a flocculant is introduced into a mixed paper supplied with raw water through a main conveying pipe so as to agglomerate foreign matters and then directly carry out a water treatment process, After dispensing into a separate branch pipe, the coagulant is added and purified, and then discharged to the next step.The turbidity and water quality of the water purified by the raw water or the coagulant are measured to control (adjust) the input amount of the coagulant by an electronically operated control unit. It is to be possible.

However, in order to remove foreign substances contained in raw water, this is merely to add only a proper amount of flocculant by measuring turbidity and water quality. There is a problem that the efficiency (effect) is significantly reduced, there is a problem that can not properly adjust the salinity and acidity of the raw water.

Publication No. 2003-33415 "Automatic drug injection system" inputs the quantity (quantity) and the injection time of purified water to be put into a constant amount of water source in the mode, and set the appropriate amount of purified water at a predetermined time. It is to be able to perform purified water by administering, this is just to make the purified water by simply adding the purified water every set time, and the salinity and acidity of the raw water can not be accurately calculated and added There is a problem that can not be adjusted properly and variously, as well as the flocculating agent is not evenly sprayed on the raw water, there is a problem that the coagulation efficiency (effect) is significantly lowered.

In order to solve this problem, I suggested "Automatic drug injection device" of Utility Model Registration No. 20-362738.

In sedimentation and filtration of raw water and discharged to the drainage basin, chemicals are mixed and mixed before the raw water is supplied to the sedimentation basin, and various kinds of foreign substances are aggregated and removed, and the sedimentation basin is provided at the lower side. A plurality of automatic chemical injectors are installed in parallel to supply the chemicals to the ejector, and the chemicals supplied through the flow control pump can be mixed with the dilution water by the ejector using the Venturi principle.

However, it is distracted because the field control panel flow control pump which controls the function of forming the automatic chemical injector is distracted, and the motor and the reducer installed in the flow control pump are installed with the normal DC motor and the reducer. It is not quantitative (precise), bulky, and not only lightweight, but also mainly imported products, so it was not easy to procure and maintain parts when A / S occurred.

The present invention is to provide a more improved automatic drug injector to solve the above problems.

In the present invention, the raw water is settled and filtered and discharged to the drainage basin, and the chemicals are mixed and mixed before the raw water is fed into the sedimentation basin so that various foreign substances can be coagulated and removed to be supplied to the sedimentation basin, but below the flow control pump head. It is possible to supply chemicals to the ejector by installing a plurality of flow control pumps with a tube interlocking method controlled by a servomotor in one automatic chemical injector, and supplying chemicals to the ejector. The aim is to provide an automatic drug injector that can be mixed and supplied with dilution water by an ejector using the principle.

Another object of the present invention is that the chemicals injected into the raw water can be supplied by calculating the exact amount by the automatic drug injector of the tube interlocking method controlled by the servomotor according to the processing quantity and the water quality, and the quantity is injected by the automatic chemical injector. The drug can be supplied evenly mixed with dilution water by the ejector using the Venturi principle, and to provide an automatic drug injector that can greatly improve the flocculation and purification effect of the foreign matter.

It is another object of the present invention to detect leakage of the flow control pump by providing leakage detection means at the bottom of each flow control pump installed in parallel in the automatic chemical injector, and select the flow control pump according to whether leakage is detected. Can be operated efficiently, and the flow control pump distributes the chemicals through the tube, but installs rollers on the rotating plate at equal intervals and rotates the rotating plate to control the outer surface of the tube by the servo motor. By discharging chemicals while being compressed at regular intervals (hours), the correct amount of chemicals can be sent out, and the head and the body can be separated to prevent contamination of chemicals and pumps. Automatic chemical liquor which can be maintained easily and in short time by replacing with Groups may haryeoneunde provided.

The above and other objects of the present invention,

The chemicals supplied by the raw water supplied through the raw water supply pipe 8 and the automatic chemical injector 11 controlling the flow rate are introduced into the landing well 3 or the mixing device by the ejector 40 using the Venturi principle, and then mixed with the mixed paper. (4) mixed and removed the chemical reactant in the flocculation paper (5), and the raw water from which the chemical reactant was removed from the flocculation paper (6) and the filter paper (7) sequentially passed through the precipitation and filtration, and purified Discharge to the drain through the discharge pipe (8-1), the chemical main supply pipe (16) installed in the chemical tank 12 is an area formula for identifying and measuring the flow rate of the discharge valve and the valve (V4) for controlling the discharge of the chemical Each of the chemical supply branch pipes 19-1 and 19-2 fitted with a flow meter 18 and branched from the chemical main supply pipe 16 is a valve V5, V6 and a solenoid valve SV1, SV2. Respectively, and the front end of the chemical main discharge pipe (19-5) for supplying the chemical to the ejector (40) Connect each of the chemical discharge branch pipes 19-3 and 19-4 equipped with the self-valve valves SV3 (SV4) and the valves V7 and V8, respectively. 19-2) and the chemical discharge branch pipe (19-3) (19-4) is connected to each other so that the flow rate control pump (20) provided with a leakage sensor (30) at the lower side to maintain a parallel state, respectively In the medicine injector assembly 10 formed of;

Each of the flow control pumps 20 is formed of a planetary gear reducer 21 and a servo motor 22, and a reduction gear and a motor for rotating the rotor assembly 24, and the servo motor 22 of the control unit 100. Control by a server driver 22-1 operated by a control signal;

Selecting each flow control pump 20, the control unit 100 for selecting and controlling the automatic and manual function mode of each flow control pump 20, the chemical injector housing 11-1 of the automatic chemical injector (11-1) ) Installed in;

It provides to the control unit 100 embedded in the automatic chemical injector the injection rate signal and other water quality signals composed of the information of the amount of water passing through the raw water flow meter (2) installed in the raw water supply pipe (8) and the external signal, The flow control pump 20 installed in parallel with the injection target amount generated by the signal and the solenoid valves SV1 to SV4 provided on the supply side and the discharge side of each flow control pump 20 are controlled by the control unit of the automatic chemical injector 11 ( Controlled by 100 is achieved by the automatic drug injector assembly 10 characterized in that it comprises.

In the automatic chemical injector assembly according to the present invention, in precipitating and filtering the raw water and discharging it to the drainage, the raw material is mixed with chemicals before supplying the raw water to the sedimentation basin so that various foreign substances can be aggregated and removed and then supplied to the sedimentation basin, A liquid leakage detection means is provided on the lower side and a plurality of flow control pumps in a tube interlocking manner can be installed to supply chemicals to the ejector, and the chemicals injected through the flow control pump can be diluted with an ejector using the Venturi principle. It can be supplied by mixing with the chemical, which is supplied to the raw water can be supplied by calculating the exact amount by the flow control pump of the tube interlocking method according to the treated water quantity and water quality, and the quantity of the chemical injected by the flow control pump Silver can be supplied evenly mixed with dilution water by the ejector using the Venturi principle It is possible to greatly improve the coagulation and purification effect of foreign substances, and the leakage detection means are provided at the lower side of each flow control pump installed in plural in parallel to detect the leakage of the flow control pump tube. The flow control pump can be operated efficiently by selectively operating the flow control pump.The flow control pump distributes the chemicals through the tube, but installs rollers on the rotating plate at equal intervals to rotate the rotor assembly so that the outer surface of the tube is repeatedly passed by the roller. The chemicals are pumped out at regular intervals to prevent the chemicals and pumps from being contaminated, and the maintenance can be performed easily and quickly by simply replacing new tubes without disassembling or cleaning the pumps. You can do it.

The above and other objects and features of the present invention will be more clearly understood by the following detailed description based on the accompanying drawings.

Figures 1 to 7b shows a specific implementation of the automatic drug injection assembly 10 according to the present invention.

1 is an exemplary view showing a state in which the automatic chemical injection device assembly 10 according to the present invention is installed in the water purification system 1, Figures 2a to 2d is a whole showing the automatic chemical injection device assembly 10 according to the present invention 3 and 4 are excerpts of the control part 100 and the flow control pump 20 built in the automatic drug injector 11 according to the present invention, and FIGS. 5A to 5C. Is an explanatory view of the operation relationship of the flow control pump 20 installed in the present invention, Figure 6 is a cross-sectional view showing a leak detector 30 is installed according to the present invention, Figure 7a and 7b is an ejector 40 is installed in the present invention Is an exploded perspective view and a cross-sectional view of the coupling.

Figure 1 shows the configuration of the automatic chemical injection machine assembly 10 according to the present invention, and the present invention is installed in the water purification system (1).

The water purification system 1 installs a landing well 3, a mixed paper 4, a flocculant 5, a sedimentation basin 6, and a filter paper 7 on the line of the raw water supply pipe 8 on which the flowmeter 2 is mounted. In the filter paper (7) through the purified water discharge pipe (8-1) to be sent to the destination such as a drain.

The automatic chemical injection machine assembly 10 according to the present invention was installed between the landing well (3) or the landing well (3) and the mixed paper (4) or on the mixed paper (4), the automatic chemical injection device assembly (10) is as follows. Formed.

The chemical tank 12 was connected (installed) with a chemical precipitation tank 17 provided with valves V4 and V-1 and a chemical main supply pipe 16 equipped with an area flow meter 18. At the discharge end of the supply pipe 16, a plurality of chemical supply branch pipes 19 equipped with valves V5, V6 and solenoid valves SV1 and SV2, respectively, were installed. It was connected to the supply side of the tube 27 installed in the automatic chemical injector 11 shown in Figures 5a to 5c.

The automatic drug injector 11 was formed as follows.

In the motor shaft 21-1 of the planetary gear reducer 21 combined with the servo motor 22 embedded in the enclosure, the center of the rotor assembly 24 formed of a disc was mounted, and the periphery of the rotor assembly 24 was installed. A plurality of rollers 25 were rotatably installed by the roller shaft 26, and a pump head cover 23 was installed above the roller 25 at the front of the rotor assembly 24.

Between the roller 25 and the pump head cover 23, a tube 27 through which chemicals are distributed is mounted, and a servo driver 22-1 is connected to the servo motor 22 for rotating the rotor assembly 24. The servo driver 22-1 is operated (driven) by the control signal of the control unit 100.

In addition, the servo motor 22 is controlled by the server driver 22-1 operated by the control signal of the controller 100-1 and the control unit 100 to reduce the import substitution effect and cost reduction of the tube interlocking pump. Improved.

On the front side of the chemical injector housing 11-1, a control unit 100 is installed on one side, and the control unit 100 selects each flow control pump 20 and touches the function mode of each flow control pump 20. A controller (including a touch screen window) 100-1 that can automatically select and control by a method, and a manual operation unit 100-2 that can be manually selected and controlled by a switch method are installed.

On the other front side of the chemical injector housing 11-1, the pump head cover 23 of each flow control pump 20, which is installed up and down inside, is exposed and installed, and a leakage sensor is provided on the lower side of each pump head cover 23. Each of 30 was installed.

The control unit 100 installed at one side of the front surface of the chemical injector housing 11-1 may operate the mode of the automatic chemical injector 11 by the operation mode selection switch 111 as illustrated in FIG. 3. Center, automatic or manually selectable operation mode unit 110, pump selection unit 121, the pump selection unit 120 to select the unit 1 or 2 and the stop of the flow control pump 20, circle Raw water flow rate control unit 130, chemical injection is selected to put the flow of raw water in automatic mode or manual mode by the water flow rate setting mode switch 131, and the raw water flow rate can be adjusted by the raw water flow rate adjustment switch 132 Select the drug injection rate to the automatic mode or manual mode by the rate setting mode switch 141, and adjust the injection rate of the drug to the manual mode to adjust the automatic rate by the central signal or water signal and the injection rate control switch 142 Injection rate control 140, the manual operation control unit for controlling the operation rate by the first and second manual operation switch 151 and the second and second manual operation switch 152 when manually operating unit 1 or unit 2 of the flow control pump 20 Formed to (150).

In addition, the control unit 100 by reducing the size and weight, significantly reduced the installation space was made to form a compact.

On the discharge side of the tube 27 mounted on the automatic chemical injector 11 formed as described above, a chemical discharge branch pipe 19-1 equipped with a solenoid valve SV3, SV4, and a valve V7, V8, respectively. Each chemical discharge branch pipe (19-1) is connected to the chemical injection pipe (19-2) equipped with a valve (V9), but the chemical injection pipe (19-2) is equipped with a separate valve (V10) The branch pipe was connected to allow the drug to be discharged separately, and the drug injection pipe 19-2 was connected to the ejector 40 which will be described later in detail.

The dilution water supply pipe 14 was installed in the dilution water tank 13 to be separately installed, and the dilution water supply pipe 14 was mounted with the valve V1 and V2 spaced apart from each other, and the dilution water supply pipe from the outside of the valve V1. (14) and the chemical main supply pipe (16) of the chemical tank (12) connected to the washing water line (14-1) equipped with a valve (V3), washing water line (14-1) connected to the chemical main supply pipe (16) ) Is connected to the discharge side of the valve (V4), the discharge end of the dilution water supply pipe 14 was connected to the ejector 40 which will be described in detail later to supply the dilution water.

At the lower side of each flow control pump 20, a leaking liquid detector 30 was provided to fill the leaking chemicals and to measure the amount of the leaking chemicals and provide them to the automatic chemical injector 11.

As shown in FIG. 6, the leakage sensor 30 has an inclined surface 32 formed in the interior of the leakage liquid container 31, and a sensing sensor 35 having a lower side at a deeper depth thereof includes a detection sensor ( 34), the leakage information detected by the detection sensor 34 was to be provided to the automatic drug injector (11).

In particular, the automatic chemical injector assembly 10 formed as described above was installed in the base 9 so that the casters and legs are easily mounted on the bottom surface as illustrated in FIGS. 2A to 2D.

The base 9 is formed on the front of the housing formed of a rectangular parallelepiped, and the left side of the opening and closing body 9-2 is composed of a distribution box and a power panel, and the right side of the opening and closing body 9-2 is installed as a tool and spare part storage box and is usually provided on the bottom side. The caster and the legs of the to facilitate the movement, and one side of the top plate was installed shelf (9-1), the upper side of the shelf (9-1) and the first unit pipe shelf (9-1-1) and The lower side was divided into the 2nd piping shelf 9-1-2.

In the base 9 formed as described above, the automatic chemical injection machine assembly 10 was installed (mounted) as follows.

In the space where the shelf 9-1 is not installed on the upper surface of the base 9, an automatic chemical injector 11, that is, a chemical injector housing 11-1, is placed, and a tip is formed on the inner side plate of the shelf 9-1. As shown in FIG. 2C, the liquid leak detectors 30 of the respective flow control pumps 20 are mounted at the middle and the lower sides, respectively, and the liquid leak detectors 30 are pump head covers 23 of the respective flow control pumps 20. It was to be located below.

As illustrated in FIG. 2D, the shelf 9-1 has a chemical supply branch equipped with valves V5, V7 and solenoid valves SV1 and SV3, respectively, in the first shelf 9-1-1. A pipe (19-1) and a chemical discharge branch pipe (19-3) were installed, and a valve (V6) (V8) and a solenoid valve (SV2) (SV4) were mounted on the second shelf (9-1-2), respectively. The chemical supply branch pipe (19-2) and the chemical discharge branch pipe (19-4) were installed, and the chemical supply branch pipe (19-1) and the chemical discharge branch pipe of the first shelf ((9-1-1)) were installed. (19-3) is connected to any one of the flow control pump 20 installed in the flow control pump 20 and the tube 27, the chemical supply branch pipe of the second shelf (9-1-2) (19-2) and the chemical discharge branch pipe (19-4) was connected to the other flow control pump 20 and the tube 27, the area type flow meter (18) was installed on the outer surface of the base (9).

The ejector 40 into which the medicine is supplied (supplied) through the chemical main discharge pipe 19-5 and the dilution water is supplied through the dilution water supply pipe 14 is formed as illustrated in FIGS. 7A and 7B.

The tube insertion hole 44 and the distribution hole 42 are vertically and horizontally communicated with each other in the mounting housing 41, and the chemical insertion tube 46 into which the chemical is introduced is installed in the tube insertion hole 44 vertically perforated. On the inlet side and the outlet side of the horizontally-circulated through-hole 42, an injection pipe 50 gradually decreasing in cross-sectional area and a one-stage injection diffusion tube 60 in which the cross-section is gradually diffused are installed, respectively. 41, a space 48 is formed between the injection pipe 50 and the first stage diffusion pipe 60, and in the state where the cross section is narrow in the discharge end of the single stage diffusion pipe 60. A two-stage blowout diffusion pipe (70) spreading again was installed.

In the ejector 40, the threaded portions 45 and 47 are formed to correspond to the inner circumferential surface of the tube insertion hole 44 vertically perforated in the mounting housing 41 and the outer circumferential surface of the chemical injection tube 46 into which the chemical is introduced. It was to be able to disassemble and combine, and to form a screw portion 46-1 on the inner circumferential surface of the chemical injection pipe 46 to facilitate coupling the chemical discharge branch pipe (19).

The injection pipe 50 provided on the inflow side of the flow hole 42 which is laterally passed through has a first end slope 54 and a plane 55 and 2 which communicate with the inflow port 53 at the front end of the cylindrical pipe 51. The cross-sectional area is gradually narrowed by the short inclined surface 56 and the conical tube 52 through which the injection hole 57 is perforated is integrally formed, and the threaded portion 58 is formed at the inlet 53 to dilute the water supply pipe 14. ), And the threaded portion 59 (43-1) was formed on the inner circumference of the outer circumferential surface of the cylindrical tube 51 and the inlet side of the inflow side 42 so as to be disassembled and coupled.

In the one-stage blowout diffusion pipe 60 provided in the discharge side distribution hole 42 of the distribution hole 42, the inflow guide slope 62 and the expansion surface 63 are in turn on the inner center line of the diffusion tube 61. And the threaded portions 64 and 43-2 were formed on the distal end surface of the diffusion tube 61 and the discharge inner side surface of the discharge hole 42 so as to be separated from each other.

The two-stage jet diffuser tube 70 provided at the discharge end of the first stage jet diffuser tube 60 integrally forms a mounting hole 72 on the inlet side of the diffusion tube 71 to diffuse the mounting hole 72 and the diffuser. Inside the tube 71, the narrow surface 63, the expansion surface 74, and the cylindrical surface 75 are in communication with each other, and the cylindrical surface 75 has a plurality of blowholes 77 through the diaphragm 76. And integrally formed on the outer periphery of the mounting hole 72 and the inner periphery of the distal end of the extension surface 63 to form the screw parts 78 and 65 correspondingly to separate and separate the cylindrical surface 75 of the A threaded portion 79 was formed at the inner circumferential end to allow the dilution chemical supply pipe 15 to be screwed together.

In addition, the dilution chemicals mixed with the dilution water in the ejector 40 can be supplied to the landing well (3) through the dilution chemical supply pipe (15), and passed through the raw water flow meter (2) installed in the raw water supply pipe (8) The amount of information can be provided to the controller 100-1, and each of the flow control pump 20 and the flow control pump 20 installed in parallel on the supply and discharge sides of the solenoid valves SV1 to SV4) was to be controlled by the control unit 100 of the automatic chemical injector (11).

Hereinafter, the operational relationship will be described with reference to the accompanying drawings.

The water purification system 1 installed with the automatic chemical injector assembly 10 according to the present invention operates as follows.

Before operating the water purification system (1) in which the automatic chemical injector assembly 10 according to the present invention is adjusted, the control unit 100 installed on one side of the front side of the chemical injector housing 11-1 is adjusted.

The control unit 100 selects each flow control pump 20 and automatically selects and controls a function mode of each flow control pump 20 by a touch method in the controller (including a touch screen window) 100-1. Or, it can be manually selected and controlled by the switch method by the manual operation unit 100-2.

The operation mode unit 110 selects the operation mode of the automatic chemical injector 11 by the operation mode selection switch 111, the automatic or manual mode, the pump selection unit 120 is operated by the pump selection switch 121 Select unit 1 or 2 of the flow control pump 20 to be made.

The raw water flow rate adjusting unit 130 selects whether the raw water is to be put into the automatic mode or the manual mode by the raw water flow rate setting mode switch 131, and adjusts the raw water amount supplied by the raw water flow rate adjusting switch 132 during manual selection. In addition, the injection rate adjusting unit 140 selects whether to put the drug in the automatic mode or the manual mode by the drug injection rate setting mode switch 141, and the injection of the drug by the injection rate adjustment switch 142 at manual selection. Adjusting the rate, the manual operation control unit 150 is injected by the No. 1 manual operation switch 151 and No. 2 manual operation switch 152 when manually operating unit 1 or unit 2 of the flow control pump 20 Adjust each one.

After adjusting the control unit 100 as described above to operate the water purification system (1) in which the automatic chemical injector assembly 10 is installed.

The raw water supplied through the raw water supply pipe (8) is supplied to the landing well (3) together with the dilution chemicals injected from the automatic chemical injector (11), and the raw water and the diluted medicine supplied to the landing well (3) are mixed with the mixed paper (4). The supplied raw water and the diluted chemical are mixed (mixed), and the raw water mixed with the diluted chemical is introduced into the flocculation paper 5, and the chemically aggregated substances mixed in the raw water are agglomerated by the diluted chemical.

The coagulant which is chemically reacted with the dilution chemical and coagulates and becomes heavy is precipitated in the settling basin (6), and the raw water in which the coagulant is precipitated in the settling basin (6) is passed through the filter paper (7). Are filtered and filtered by a filter paper (filter), and the filtered raw water is supplied to a final destination such as a drainage tank through a purified water discharge pipe 8-1.

When the water purification system 1 operates as described above, the amount of raw water supplied through the raw water supply pipe 8 is measured (measured) by the raw water flow meter 2 so that the amount of processing signal (information) is automatically adjusted. In the state that is provided in 11), the automatic drug injector 11 according to the present invention to put the dilution drug into the landing well (3) is to operate as follows.

The chemical tank 12 is filled with liquid chemicals such as LAS, PAC, PAHCS, sodium hypochlorite, caustic soda, sulfuric acid, hydrochloric acid, polymers, polyamines, etc., and the dilution water such as purified water or tap water in the dilution water tank 13. It is operated in the supplied state.

When the valve V4 of the chemical main supply pipe 16 connected to the chemical tank 12 is opened, the liquid substance filled in the chemical tank 12 passes through the settling tank 17, whereby foreign matters are precipitated. It passes through the flowmeter 18 and the valves V5 and V6, and is supplied to any one of the flow control pumps 20 installed in parallel via the solenoid valves SV1 and SV2.

At this time, the controller 100-1 of the automatic chemical injector 11 will operate the flow control pump 20 in parallel or in parallel according to the detection state of the leak detector 30 installed below the flow control pump 20. It is automatically determined whether to operate the other flow control pump 20 installed, or by manually selecting by operating the pump selection switch 121 of the pump selection unit 120 to determine.

When it is detected that the leakage is not leaked in the leak detector 30, the solenoid valve SV1 is operated by the determination of the automatic chemical injector 11 to operate the flow control pump 20 in which the leak leak detector 30 is installed. do.

The medicine supplied through the medicine supply branch pipe 19 passes through the tube 27 as illustrated in FIGS. 5A to 5C.

As illustrated in FIG. 5A, when the servo motor 22 built in the chemical injector housing 11-1 is operated in a state in which one roller 25 is located at the upper center, the roller mounted on the motor shaft is operated. The rotor assembly 24 is rotated together with the shaft 26, and when the rotor assembly 24 is rotated, the chemicals supplied through the tube 27 when the mounted rollers 25 move are illustrated in FIG. 5A. In the same state, it is pushed upward by the roller 25 on the protruding curved suction surface 23-1 in the state illustrated in FIG. 5B, and the chemical located in the upper center as illustrated in FIG. As illustrated in FIG. 5C, the rotating roller 25 moves to the discharge-side tube 27 of the protruding curved discharge surface 23-3 and passes through the solenoid valve SV3 and the valve V7 to enter the chemical injection tube ( 19-2) is supplied (injected) to the chemical injection pipe 48 of the ejector 40.

As described above, when the roller 25 installed at the equal intervals (angles) of the rotor assembly 24 rotates and delivers the medicine filled in the tube 27, the chemical flows through the area flow meter 18 (distribution). ) Can be visually identified.

When the chemical is injected into the ejector 40 by the operation of the flow control pump 20 as described above, the automatic chemical injector 11 according to the information of the flow rate provided from the raw water flow meter 2 flow control pump 20 By controlling the rotational speed of the motor 22 installed in the control to control the appropriate amount of chemicals passing through the tube (27).

On the other hand, when the chemicals filled in the chemical tank 12 are not used for a long time as described above, the dilution water filled in the dilution water tank 13 when the liquid is injected into the ejector 40 by the operation of the flow control pump 20. It is possible to wash the chemical main supply pipe (16).

The valves V1 and V2 are opened to open the valve V3 installed in the washing water line 14-1 while the dilution water is supplied to the ejector 40 through the dilution water supply pipe 14. When some of the dilution water supplied to the dilution water supply pipe 14 is supplied to the chemical main supply pipe 16 through the washing water line 14-1, the drug passing through is blocked, and then the flow rate in the chemical supply branch pipe 19 It is supplied to the control pump 20, it is supplied to the ejector 40 through the chemical injection pipe (19-2) by the operation of the flow control pump 20.

The chemicals and dilution water supplied through the chemical input pipe 19-2 and the dilution water supply pipe 14 are introduced into the ejector 40 as illustrated in FIGS. 7A and 7B.

The chemicals introduced through the chemical injection pipe 19-2 are disposed between the injection pipe 50 and the first-stage spreading pipe 60 through the chemical injection pipe 46 mounted on the upper side of the mounting housing 41. The first stage inclined surface 54 which is introduced (supplied) into the formed space portion 48 and supplied through the dilution water supply pipe 14 is introduced into the inlet 53 of the cylindrical tube 51 and gradually narrows. ) And then pass through the dilution water inlet 57 after passing through the plane 55 and the two-stage slope 56.

The chemicals flowing into the space 48 and the dilution water injected into the dilution water inlet 57 are expanded on the boundary line between the inflow guide slope 62 and the expansion surface 63 of the first stage diffusion diffusion tube 60. The chemical dilution water that is mixed while being injected into the spray, and is injected and mixed is secondly mixed while being sprayed again from the narrow surface 73 of the two-stage jet diffusion tube 70 to the expansion surface 74.

The secondary mixed chemical dilution water is not immediately discharged through the cylindrical surface 75 but detained by the diaphragm 76 and retarded in the expansion surface 74 while colliding with the chemical dilution water sprayed with the secondary mixture again ( Tertiary) The mixed and tertiary mixed dilution water is ejected to the cylindrical surface 75 with a strong pressure through the spouting holes 77 through the diaphragm 76, the chemical dilution is ejected to the cylindrical surface 75 Water is supplied to the landing well (3) through the diluted chemical supply pipe (15).

As described above, in the state in which the upper flow control pump 20 in which the leak detector 30 is installed operates the chemicals into the ejector 40, the sealing ability of the connection portion of the tube 27 is deteriorated. When the drug (or chemical dilution water) leaks, the leaked drug is filled in the leakage solution container 31 as illustrated in FIG. 3, and the leakage fluid filled up the inclined surface 32 of the leakage solution container 31 ( 36: When the liquid drug is detected (sensing) in contact with the detection piece 35 of the detection sensor 34, the detection sensor 34 provides the information to the controller 100-1 of the automatic medicine injector 11 do.

The controller 100-1 of the automatic chemical injector 11 provided with the leakage state information closes the solenoid valves SV1 and SV3 and stops the operation of the flow control pump 20.

At the same time, the solenoid valve (SV2) (SV4) connected to the lower flow control pump 20 is opened (operated) so that the chemicals are supplied to the flow control pump 20 located below, and the flow control pump 20 is opened. It operates to supply (supplied) the drug to the ejector 40, and by supplying the drug to the ejector 40 without interruption, it is possible to continuously supply the chemical dilution water to the landing well (3).

Repair the flow control pump 20 in which leakage occurs while operating the other (lower) flow control pump 20 as described above, and after completion of the repair, the flow control pump in which the leak detection sensor 30 is installed ( 20) to reduce the supply of medicine.

In particular, the automatic chemical injector assembly 10 according to the present invention, as illustrated in Figure 2a to 2d, the automatic chemical injector 11 is placed on one side of the upper surface of the base 9, each flow control pump 20 Chemical supply branch pipe (19-1) (19-2) and chemical discharge branch pipe (19-3) (19-4) connected to the valves and valves (V5 to V8) and solenoid valves (SV1 to SV4) installed thereon ) Is installed in the first shelf (9-1-1) and the second shelf (9-1-2) of the shelf (9-1), so that the chemicals connected to each flow control pump (20) Supply branch pipes (19-1) (19-2), chemical discharge branch pipes (19-3) (19-4), valves (V5 to V8) and solenoid valves (SV1 to SV4) provided thereon It can be identified, and thus, the chemical supply branch pipes 19-1, 19-2, the chemical discharge branch pipes 19-3, 19-4, and the valves V5 to V8 of each flow control pump 20. And solenoid valves SV1 to SV4 can be easily installed and repaired.

In addition, since the automatic chemical injector 11 according to the present invention is installed in the base 9, the automatic chemical injector 11 can be separated and transported easily by the base 9.

Although the present invention has been described in detail only with respect to the specific examples described, it will be apparent to those skilled in the art that various changes and modifications can be made within the technical scope of the present invention, and such variations and modifications are within the scope of the appended claims.

1 is an exemplary view showing a state in which the automatic chemical injector according to the present invention installed in the water purification system of the water purification plant.

Figure 2a to 2d is an overall perspective view and a separate perspective view and installation state showing the automatic chemical injection machine assembly of the automatic chemical injection machine according to the present invention.

3 and 4 is an exemplary view showing an extract of the control unit and the flow control pump installed in the automatic chemical injection machine assembly of the automatic chemical injection machine according to the present invention.

5a to 5c is a view illustrating the operation relationship of the flow control pump installed in the automatic chemical injector assembly of the automatic chemical injector according to the present invention.

Figure 6 is a cross-sectional view showing a leak detector which is installed in the automatic drug injector assembly of the automatic drug injector according to the present invention.

Figure 7a and 7b is an exploded perspective view and a cross-sectional view showing an ejector installed in the water purification system of the water purification plant is installed automatic drug injector according to the present invention.

Explanation of symbols on the main parts of the drawings

1: water purification system 2: raw water flow meter 3: water well

6: settler 7: filter paper 9: base

10: automatic chemical injector assembly 11: automatic chemical injector

12: chemical tank 13: dilution water tank 14 dilution water supply pipe

15: diluted chemical supply pipe 16: chemical main supply pipe 17: chemical precipitation tank

18: Area flow meter 19: Chemical supply branch 20: Flow control pump

21: planetary gear reducer 22: servo motor 23: pump head cover

24: rotor assembly 25: roller 27: tube

30: leak detector 40: ejector 50: injection pipe

51: cylindrical tube 52: conical tube 60: single stage diffusion tube

70: two-stage diffusion tube 100: control unit

Claims (6)

The chemicals supplied by the raw water supplied through the raw water supply pipe 8 and the automatic chemical injector 11 controlling the flow rate are introduced into the landing well 3 or the mixing device by the ejector 40 using the Venturi principle, and then mixed with the mixed paper. (4) mixed and removed the chemical reactant in the flocculation paper (5), and the raw water from which the chemical reactant was removed from the flocculation paper (6) and the filter paper (7) sequentially passed through the precipitation and filtration, and purified Discharge to the drain through the discharge pipe (8-1), the chemical main supply pipe (16) installed in the chemical tank 12 is an area formula for identifying and measuring the flow rate of the discharge valve and the valve (V4) for controlling the discharge of the chemical Each of the chemical supply branch pipes 19-1 and 19-2 fitted with a flow meter 18 and branched from the chemical main supply pipe 16 is a valve V5, V6 and a solenoid valve SV1, SV2. Respectively, and the front end of the chemical main discharge pipe (19-5) for supplying the chemical to the ejector (40) Connect each of the chemical discharge branch pipes 19-3 and 19-4 equipped with the self-valve valves SV3 (SV4) and the valves V7 and V8, respectively. 19-2) and the chemical discharge branch pipe (19-3) (19-4) is connected to each other so that the flow rate control pump (20) provided with a leakage sensor (30) at the lower side to maintain a parallel state, respectively In the medicine injector assembly 10 formed of; Each of the flow control pumps 20 includes a planetary gear reducer 21 and a servo motor 22 that form a reduction gear and a motor for rotating the rotor assembly 24, and the servo motor 22 is a controller 100-1. And controlling by the server driver 22-1 operated by the control signal of the control unit 100; Selecting each flow control pump 20, the control unit 100 for selecting and controlling the automatic and manual function mode of each flow control pump 20, the chemical injector housing 11-1 of the automatic chemical injector (11-1) ) Installed in; The controller 100-1 provides information on the amount of water that has passed through the raw water flow meter 2 installed in the raw water supply pipe 8, and the plurality of flow rate control pumps 20 and each of the flow rate control pumps 20 are provided in parallel. The solenoid valves SV1 to SV4 respectively provided on the supply side and the discharge side are controlled by the controller 100-1 of the automatic chemical injector 11; The plurality of flow control pumps 20 are provided in parallel with the automatic chemical injector 11 installed in the chemical injector housing 11-1, the valves V5, V6, V7, V8, and solenoid valve SV1 ( Automatic chemical injector assembly formed by each of the chemical supply branch pipe (19-1) (19-2) and the chemical discharge branch pipe (19-3) (19-4) equipped with SV2) (SV3) (SV4), respectively (10) attached to the base (9) provided separately; The base (9) on which the automatic chemical injector assembly (10) is installed is provided with an opening and closing door (9-2) on the front of the box formed of a rectangular parallelepiped and a caster and a leg at the bottom thereof, and a shelf box (9) on one side of the upper plate. -1) and the interior of the shelf 9-1 divided into an upper first shelf 9-1-1 and a lower second shelf 9-9-2 Automatic chemical injectors. The method according to claim 1, The controller 100-1 and the control unit 100 is installed in the medicine injector housing 11-1 of the automatic medicine injector 11; An operation mode unit 110 for selecting an operation mode of the automatic chemical injector 11 by an automatic or manual mode by the operation mode selection switch 111; A pump selection unit 120 for selecting unit 1 or unit 2 of the flow control pump 20 by the pump selection switch 121; A raw water flow rate adjusting unit 130 for selecting a flow rate of raw water in an automatic or manual mode by the raw water flow rate setting mode switch 131 and adjusting the raw water amount by the raw water flow rate adjusting switch 132; An input rate adjusting unit 140 for selecting the input of the chemicals in the automatic or manual mode by the chemical input mode switch 141 and adjusting the input rate of the chemicals by the input rate adjusting switch 142; Manual operation control unit 150 for controlling the operation rate by the first and second manual operation switch 151 and the second and second manual operation switch 152 when manually operating unit 1 or unit 2 of the flow control pump 20; Automatic drug injector, characterized in that formed. The method of claim 1, wherein the control unit 100 is installed on one side of the front surface of the medicine injector housing (11-1); The touch screen window 100-1, which selects each flow control pump 20 and automatically selects and controls the function mode of each flow control pump 20 by a touch method, and manually by a switch method. Automatic drug injector, characterized in that formed by; manual operation unit (100-2) that can be selected and controlled by. delete delete The method according to claim 1, further comprising: installing the automatic drug injection assembly (10) in a base (9) provided separately; An automatic chemical injector 11 is placed in a space where the shelf box 9-1 is not installed on the upper surface of the base 9; The liquid leakage detectors 30 of the respective flow control pumps 20 are mounted in the middle and the lower side of the inner side plate of the shelf 9-1, and each leak detection sensor 30 has a pump head cover of each flow control pump 20. Positioned below (23); The first shelf (9-1-1) has a chemical supply branch pipe (19-1) and a chemical discharge branch pipe (19-19) equipped with valves V5, V7, and solenoid valves SV1, SV3, respectively. 3) and one of the flow control pump 20 and the tube 27 of the flow control pump 20 is installed in the chemical supply branch pipe (19-1) and the chemical discharge branch pipe (19-3). ); A chemical supply branch pipe (19-2) and a chemical discharge branch pipe (19-4) each equipped with a valve (V6) (V8) and a solenoid valve (SV2) (SV4) are installed in the second shelf (9-1-2). ), And the chemical supply branch pipe (19-2) and the chemical discharge branch pipe (19-4) connected to the other flow control pump 20 and the tube (27); automatic chemical injector.

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