KR20100007047U - Fixed Quantity Throw in System for Liquid Fluorine - Google Patents

Abstract

The present invention relates to a liquid fluorine dosing device, it is possible to more stable injecting liquid fluorine to ensure the stability of the facility as well as to facilitate maintenance. To this end, the liquid fluorine metering device according to the present invention, the main storage tank 10 and the auxiliary storage tank 20 is installed outdoors and indoors to store fluorine, and the secondary storage tank under the control of the control panel 90 The metering pump 30 connected to the 20 is driven to pump and supply an appropriate amount of fluorine, and the injector 50 together with the pressurized water is supplied to the raw water flow line P3 with the fluorine pumped by the metering pump 30. It is injected into the raw water through a rapid mixing process by high pressure injection. When the raw water containing fluorine is purified in the purified water 70, a sample of some raw water is extracted to measure the concentration of fluorine ions using the fluorine concentration analyzer 80, and the signal detected from the fluorine concentration analyzer 80 and the In the fluorine supply process and the raw water flow process, the flow rate meter 62, the metering scale 21, the water level meter 22, the fluorine flow amount measured by the metering pump 30, etc. are applied from the control panel 90 to calculate the calculated amount of the quantitative pump ( 30) is controlled to adjust the fluorine concentration.

In addition, the various signals applied to the control panel 90 and the fluorine residual amount of the main storage tank 10, the auxiliary storage tank 20 and the operation relationship of the various components installed on the fluorine supply line (P2) is monitored. The management operator can confirm through the system 91.

Fluorine, fluorosilicate, purified water, liquid, injector, metering pump, monitoring

Description

Fixed Quantity Throw in System for Liquid Fluorine}

The present invention relates to a liquid fluorine dosing device, and more particularly, to more stably inject a liquid silicate fluoride (H ₂ SiF ₆ ) used in the prevention of tooth decay in a constant ratio in the raw water of a water purification plant. The present invention relates to a liquid fluorine dosing device capable of ensuring the stability of a facility and facilitating maintenance.

In general, the raw water of the drinking water source contains pollutants such as various suspended substances, sludge, heavy metals, etc., and thus exists in an unsuitable state for use as drinking water.

Therefore, clean water is supplied to households through water purification facilities to be used as drinking water.

In other words, the water supply facility uses granular activated carbon filter paper, which is a high-purity treatment facility, in the process of passing raw water taken from the intake to landing, mixed, sedimentary, filter, and purified water, and finally put chlorine into clean water. It will be supplied to the home.

In this case, in general, a small amount of chlorine is added in the process of sterilizing and disinfecting the raw water to make the purified water, but recently, fluorine has been introduced in order to prevent damage caused by the toxicity of chlorine and to keep the teeth healthy.

Here, the process of adding a fluorine compound for the prevention of tooth decay is made in a chemical treatment process.

The fluorine compound introduced in this way exists as fluorine ion (F ⁻ ) in water, and three kinds of fluorine ions (NaF), silicate fluoride (H ₂ SiF ₆ ), and sodium silicate fluoride (Na ₂ SiF ₆ ) are used. have.

Among these fluorine compounds, sodium fluoride and sodium silicate fluoride are used in a solid state that forms white powder or crystals, and silica fluoride is used in a colorless transparent liquid state.

On the other hand, in the case of injecting the solid or liquid fluorine compound, the solid-state sodium fluoride and sodium fluoride addition method, the volume ratio of sodium fluoride or sodium fluoride per unit time according to the flow rate of the raw water is added. There is a method, and a method of injecting at a weight ratio of sodium fluoride or sodium silicate per unit time according to the flow rate of raw water is used.

That is, the conventionally known method of injecting a solid fluorine compound at a ratio of volume or weight per unit time is difficult to form a ratio of fluorine ions required in response to a change in the flow amount of raw water, as described above. There has been an uneconomical problem in the incorporation of the compound, as it is made by the worker, thus increasing the labor and subsequent costs of the worker.

In addition, when the fluorine compound comes into contact with the human body, there is a risk of a safety accident such as a respiratory disease, and even in various facilities in which the fluorine compound is introduced, there is a problem that the life of the facility including corrosion is shortened by the strong acid fluorine ion.

On the other hand, as a way to solve this problem has been disclosed in the Republic of Korea Patent No. 234882 (1999.9.20) with respect to the fluorine injection method and system for injecting the fluorine silica, that is, the liquid fluorine compound in the fluorine compound.

That is, the technique disclosed in Korean Patent No. 234882 is a configuration that measures the flow rate of raw water based on experimental data of the input amount of the fluorine compound according to the flow rate of raw water and discharges a certain amount of the fluorine compound corresponding to the measured value. There was a problem that it is difficult to expect a normal fluorine ion concentration ratio corresponding to the purified water of the purified water.

In addition, it is difficult to accurately set the experimental data of the fluorine ion concentration ratio in a large-capacity water purification plant, in which the amount of fluorine compound set in dependence on the experimental data described above is used. And there is a risk that it will act as a harmful factor to the human body, if the fluoride ion is injected in a somewhat small capacity because it is difficult to expect the effect, there was a fear that it will be spent at unnecessary expense.

On the other hand, the fluorine dosing device of the water supply disclosed in Korean Patent No. 329172 (registered on March 6, 2002), which is filed by the applicant, is generated in the workplace by changing the supply of fluorine in a powder state to an unmanned operation. By reducing dangerous occupational diseases and supplying a fixed amount of fluorine according to the purified flow rate of fluorine supplied into the tank, the concentration of dissolved fluorine is kept constant at all times.

That is, as shown in Figure 1, the tap water fluorine injection device disclosed by the applicant, the chemical dilution tank 120 is provided with agitators (122,123) for adding and diluting fluorine powder mixed with raw water, and purified water A measuring unit 150 for collecting a portion of the fluorine to measure the amount of dissolved fluorine; Comparing the value of the measuring device 150 to control the amount of fluorine input, as well as the control unit 160 for controlling the entire device, and the monitoring system 161 and the output device 162 connected to the control unit 160, Separating the inside of the space of the chemical dilution tank 120 with a baffle plate 121 and equipped with a plurality of agitators (122,123) to allow fluorine to be diluted during the first and second fluorine powder in the chemical dilution tank 120 A transfer unit 110 for sucking powder fluorine into a vacuum and automatically discharging the powder fluorine to inject it therein; A supply unit 100 including a powder storage hopper 101 installed below the transfer unit 110 and a feed unit 103 driven by a step motor 102; A check valve 124 installed between the chemical dilution tank 120 and the diffuser 126 on the overflow side; An injector 125 for completely diluting undiluted fluorine; Is installed in the lower portion of the diffuser 126 includes a flow meter 131 for measuring the flow rate of the water produced in the filter paper 130, the transfer unit 110 is composed of a pressure and a blower (not shown) to generate a vacuum Generator 112, a vacuum transfer device 111 that operates at the pressure of the vacuum generator 112, and a flexible pipe 113 is connected to one side of the vacuum transfer device 111, powder fluorine bag and chemicals The inhaler 114 sucks the medicine from the contained place and sends it to the vacuum transfer device 111 and the vacuum generator 112 controls the vacuum generator 112 to inhale powder into the inhaler 114 while activating the vacuum transfer device 111. Next, the vacuum feeder control unit 170 controls the transfer to the powder storage hopper 101 of the supply unit 100.

Looking at the process of correcting the dissolved fluorine concentration in the powder fluorine injection process using the fluorine input device as follows.

First, using tap water pumps 132 and 133, the tap water is taken from the purified water 140 into the chemical dilution tank 120 to be mixed with the chemicals, and the vacuum generator 112 is operated to operate the inhaler with the vacuum force. 114) vacuum suction a certain amount of powdered fluorine, and then a large amount of fluorine powder is sucked into the vacuum transfer device 111 through the flexible pipe 113.

The sucked fluorine powder is supplied to the powder storage hopper 101 installed at a lower portion thereof, and the powdered fluorine thus transported is filled with the feed part 103 so that the density of the powdered fluorine is kept constant and the chemical dilution tank 120 As a result, the air is to be discharged uniformly.

In this state, the control unit 160 compares the measured value of the measuring device 150 measuring the amount of fluorine contained in the purified water collected by the operation of the sample water pump 141, and the step of the feed unit 103 according to the supply amount. The motor 102 is rotated.

That is, the feed unit 103 by measuring the fluorine concentration of the raw water before the injection into the chemical dilution tank 120 to measure the residual fluorine to automatically measure the residual fluorine in order to measure the residual fluorine concentration 150 Then, by adjusting the rotational speed of the step motor 102 of the feed unit 103 according to the residual fluorine concentration of the raw water to adjust the chemical input amount in the feed unit 103.

At this time, the chemical input amount in the feed unit 103 is also adjusted according to the flow rate value measured by measuring the water production amount in the filter paper 130 with a flow meter (131).

When the fluorine input amount is determined and adjusted by the above method, the fluorine is supplied into the chemical dilution tank 120 by the rotation of the step motor 102, and is completely dissolved through the second and third stirrers 122 and 123. .

That is, in the chemical dilution tank 120, the raw water and fluorine which are taken into the pressurized water pumps 132 and 133 by the second and third stirrers 122 and 123 are mixed well, and the chemical dilution tank ( 120, the raw water containing a certain concentration of fluorine that is well mixed with fluorine is completely mixed by the injector 125 to some undiluted portion, and in the injector 125, the raw water containing the fully mixed fluorine is rapidly moved to a long distance. The transfer is sent to the diffuser 126.

At this time, the dissolved fluorine solution is overflowed by the purified water supplied, the pressure is changed in the process of passing through the check valve 124, and then the remaining undiluted fluorine is dissolved and supplied to the diffuser 126 via the injector 125. It is mixed with the purified water passing through the filter paper 130.

In other words, the chemical dilution water sent to the diffuser 126 is put in a predetermined amount of water produced in the filter paper 130, the chemical dilution water introduced reaches the purified water 140, the number of samples in the purified water 140 The raw water collected by the pump 141 is sent to the measuring unit 150 for automatically measuring fluorine, and the control unit 160 instructs the feed unit 103 to maintain the reference concentration by measuring the residual fluorine concentration in the purified water 140. Fluorine is introduced through an iterative process of adjusting the fluorine input.

That is, the fluorine injecting device is to supply the powdered fluorine to the feeder by using a vacuum, thereby improving the working environment to lower the incidence of occupational diseases, and to reduce the concentration of dissolved fluorine dissolved in purified water. It has the advantage of supplying fluorine while maintaining it correctly.

However, the fluorine input device researched and developed by the present applicant can be applied as an unmanned device for injecting fluorine in a solid powder state, but the device for injecting a fluorine compound in a liquid state was somewhat insufficient.

Accordingly, the present invention was devised to provide a liquid fluorine quantitative input device capable of stably injecting a liquid fluorine compound by supplementing and improving the fluorine input device in a powder state disclosed by the present applicant. Determination of liquid fluoride, which makes it possible to more stably inject a liquid silicate fluoride (H ₂ SiF ₆ ) chemical into the raw water of a water purification plant to ensure the stability of the facility and to facilitate maintenance. To provide an input device.

That is, the liquid fluorine dosing device according to the present invention solves the safety problem due to the over-injection of chemicals, solves the risk of chemical leakage when the fluorine dosing device breaks down, and installs an injector for rapid mixing, In addition to maintaining the concentration of fluorine, the purpose is to prevent the fluorine chemical from being biased to one side and to achieve rapid mixing to maximize the cost savings as well as maintaining the exact concentration desired by the manager.

In addition, the fluorine injection device is a facility to inject toxic chemicals called fluorine into the water supply, so smooth maintenance is absolutely necessary to prevent worker accidents. Liquid fluorine, which prevents damage, extends the life of the facility and monitors all the conditions of the fluorine input facility, thereby establishing a complete management system and a system that maximizes the reduction of human costs. To provide a metering input device.

Liquid fluorine dosing device according to the present invention for achieving the above object, is installed in the emergency storage tank in the outdoors to provide a large amount of fluorine storage supply, a water level meter that can detect and detect the reduction of fluorine stored therein And main storage tank is provided; The main storage tank is connected to the fluorine supply line and is installed indoors provided with a fluorine overflow prevention jaw, and an appropriate amount of fluorine is supplied and stored in consideration of the daily fluorine input amount through an electric valve provided on the fluorine supply line. An auxiliary storage tank, which is provided to prevent the input beforehand and is provided with a weighing scale at the lower part thereof so as to check and monitor the height and weight of the fluorine storage amount; A fixed-quantity pump installed at a position higher than the maximum fluorine storage level of the auxiliary storage tank and installed on the fluorine supply line to supply an appropriate amount of fluorine stored in the auxiliary storage tank to the raw water flow line through control of a control panel; An injector installed at the intersection of the fluorine supply line and the raw water flow line so as to rapidly mix fluorine by high pressure spraying the raw water flow line with the pressurized water provided from the pressurized water pump by pulling the fluorine pumped and supplied by the metering pump at high pressure Wow; Air supply means which is separately connected to the fluorine supply line via a check valve to supply air in order to prevent the siphon action caused by the vacuum formed in the fluorine supply line during the rapid mixing of the fluorine by the injector; A flow meter arranged to filter and feed a fluorine in a liquid state on a raw water flow line through which filtered raw water flows to purified water, and a flow meter provided to measure and sense the level of raw water according to the flow of raw water on the water channel; A fluorine concentration analyzer for extracting a sample of some raw water through a sampling pump to measure the concentration of fluorine ions in the process of purifying raw water containing fluorine contained in the purified water; A control panel for controlling the driving of the metering pump by receiving the signal detected from the fluorine flow amount measured by the flow meter, the weighing scale, the water level meter, the metering pump and the fluorine concentration analyzer; Monitoring system provided in the central control room for displaying the various signals applied to the control panel and the operation relationship of the fluorine residual amount of the main storage tank, the auxiliary storage tank and the various components installed on the fluorine supply line so that the management operator can confirm It is characterized by including.

Here, it is preferable that a float valve having a forced shutoff function is installed in the auxiliary storage tank so that a predetermined amount or more of fluorine is not supplied.

In addition, it is preferable to configure the communication system connected to the monitoring system so as to monitor the operation management status according to the fluoride input in the local health center.

In addition, the fluoride overflow prevention jaw is preferably equipped with an alarm system consisting of a leak detection sensor connected to the control panel so that the management operator can quickly grasp the fluorine leakage situation.

According to the present invention, the liquid silicate fluoride (H ₂ SiF ₆ ) chemicals can be more stably added to the feed water of the water purification plant at a constant rate to ensure the stability of the facility as well as to facilitate maintenance. It works.

In addition, based on the actual measured values of the flow rate of raw water and the fluorine ion concentration of the purified water, the supplemented water is continuously checked and the required amount of fluorine is added. This has the effect of achieving a state containing.

That is, the liquid fluorine dosing device according to the present invention can solve the safety problem due to the excessive injection of the chemical, solve the risk of chemical leakage when the fluorine dosing device breaks down, by installing an injector and rapidly mixing, In addition to maintaining a uniform concentration of fluorine, it prevents the fluorine chemical from being biased to one side, and also allows rapid mixing to maximize the effect of cost reduction as well as maintaining the exact concentration desired by the manager.

In particular, the fluorine injector is a facility for injecting a highly toxic chemical called fluorine into the tap water, so smooth maintenance is absolutely necessary. Therefore, the safety accident of the worker should be prevented in advance. By preventing the corrosion and damage of each facility, it extends the life of the facility and monitors all the conditions of the fluorine injection facility, thereby establishing a complete management system and maximizing the reduction of human costs. There is an effect that can be done.

Hereinafter, a liquid fluorine dosing device according to a preferred embodiment of the present invention will be described with reference to the accompanying drawings.

Figure 2 is a block diagram for explaining the configuration and operation of the liquid fluorine metering device according to a preferred embodiment of the present invention.

As shown in Figure 2, the liquid fluorine metering device according to a preferred embodiment of the present invention, the main storage tank 10 and the secondary storage tank 20 that can store the fluorine compound are arranged separately in the outdoors and indoors And interconnected via a fluorine supply line (P2).

That is, the main storage tank 10 installed outdoors is selected to have a capacity and specifications sufficiently considering the capacity of the tank in order to prepare for the defect and emergency of the tank in storing fluorine.

In a preferred embodiment of the present invention, a plurality of main storage tanks 10 having a capacity of 20 m 3 are provided and connected in parallel to the fluorine inlet line P1 and the fluorine supply line P2 in parallel through a conventional connection method. Sufficient storage and supply of silicate fluoride (fluorine).

In particular, the main storage tank 10 is installed in the emergency storage tank 13, when toxic fluorine flows out of the emergency storage tank 13 when liquid fluorine overflows from the main storage tank 10 to the outside due to an unexpected accident. It is designed to secure the stability of the facility by preventing it from exiting.

At this time, inside each of the main storage tank 10 is provided with a water level gauge 12 to measure the level of fluorine to detect the reduction of fluorine.

In a preferred embodiment of the present invention, the ultrasonic level gauge is used as the level gauge 12.

Of course, the lower portion of the main storage tank 10 may be provided with a separate weighing meter 11 for measuring the reduction of fluorine to detect the reduction of fluorine in parallel or independently of the water gauge 12.

As described above, the main storage tank 10 installed outdoors and the auxiliary storage tank 20 installed indoors are connected to each other through the fluorine supply line P2, and the auxiliary storage tank 20 is formed of fluorine. As a storage tank having a small capacity (for example, in the embodiment of the present invention uses a secondary storage tank of 0.2 m3 capacity) that can store the amount of daily use, safety and over-injection of fluorine storage in advance It is provided to prevent.

At this time, on the fluorine supply line (P2) connecting between the outdoor main storage tank 10 and the indoor secondary storage tank 20, the electric valve that can adjust the amount of fluorine in consideration of the capacity of the secondary storage tank (20). 15 is provided.

The electric valve 15 serves as a shutoff valve having a function of blocking the supply capacity to be supplied to the auxiliary storage tank 20 from the main storage tank 10 to the auxiliary storage tank 20 by the amount of fluorine daily. It is an automatic valve with acid resistance that can withstand fluorine chemicals well.

As in the main storage tank 10, the auxiliary storage tank 20 has a weighing scale 21 installed at a lower portion of the auxiliary storage tank 20 so as to check and monitor the amount of fluorine stored in height and weight. The water gauge 22 is installed.

That is, by preventing the fluorine from being introduced in the auxiliary storage tank 20 by preventing the fluorine more than an appropriate amount of fluorine from entering the auxiliary storage tank 20 through the measuring scale 21 and the water level meter 22 installed in the auxiliary storage tank 20 in advance. It can be prevented to maintain stability in use.

In particular, the auxiliary storage tank 20 is provided with a float valve 25 for fluorine acid.

The float valve 25 has a function of forcibly blocking the fluorine from being supplied to the auxiliary storage tank 20 by a predetermined amount or more.

That is, the auxiliary storage tank 20 is set to supply only a predetermined amount of fluorine as described above, and when a predetermined amount of fluorine is supplied to the auxiliary storage tank 20, the supplied fluorine is exhausted until it is exhausted. The supply shutoff function of the electric valve 15 and the monitoring function of the water level gauge 21 and the weighing scale 22 are sufficient to control the exact amount of fluorine supply, but if an unexpected emergency occurs, In a situation where the fluorine is not supplied to the auxiliary storage tank 20 by closing the valve of the storage tank 10 or the like, or if it is not confirmed, the float valve 25 forcibly supplies a certain amount of fluorine to the auxiliary storage tank ( 20 will be blocked from being supplied.

As such, the present invention seeks to secure the stability of the fluorine injection facility through double and triple safety devices.

However, in spite of the efforts to secure the stability of the facility by providing safety devices such as the electric valve 15 and the float valve 25, when the fluorine overflows in the auxiliary storage tank 20 installed indoors, the fluorine concentration is increased. Fluorine overflows to the floor of the control room where the equipment for adjustment is installed, which can lead to strong corrosion caused by the strong acid fluorine.

In this invention, in order to solve this problem, a safety facility such as a fluorine overflow prevention jaw 23 is installed on the indoor space where the auxiliary storage tank 20 is installed, and at the same time, fluorine leaks from the auxiliary storage tank 20. It is equipped with an alarm system, such as a leak detection sensor 24, so that the management operator can be quickly identified.

The leak detection sensor 24 is connected to the control panel 90 to transmit a leak alarm situation, the alarm content delivered to the control panel 90 will be shown in the monitoring system 91 of the central control room connected to the control panel 90 Of course.

On the other hand, on the fluorine supply line (P2) leading from the auxiliary storage tank 18 to the flow line (P3) of the raw water to be described later, the metering pump 30 for regulating and supplying the flow amount of fluorine is provided.

Of course, the metering pump 30 has a function of measuring the flow amount of fluorine and transmitting it to the control panel 90.

That is, the raw water flows through the raw water flow line (P3) to be described later, in order to inject a certain amount of fluorine therein, the fluorine stored in the auxiliary storage tank 20 is driven by the quantitative pump 30 to supply the fluorine supply line ( It must be introduced into the feedwater flow line (P3) via P2).

At this time, the measured amount detected in the weighing scale 21 and the water level meter 22 installed in the auxiliary storage tank 20 and the flow amount detected in the metering pump 30 are delivered to the control panel 90 in a comprehensive manner so that the fluorine can be accurately corrected. The input amount is measured, and the measured value makes it possible to determine a more accurate fluorine concentration and to control the concentration.

Here, in the present invention, in installing the metering pump 30, the metering pump 30 is installed at a height equal to or more than the maximum fluorine storage level of the auxiliary storage tank 20.

This is because a normal driving command is transmitted to the metering pump 30 so that fluorine is supplied by pumping only when the metering pump 30 is driven, and fluorine is not randomly supplied when the metering pump 30 is not driven. To do this.

That is, when the metering pump 30 is installed to have a position higher than the maximum storage level of fluorine stored in the auxiliary storage tank 20, the problem described below will be solved.

In other words, in the structure in which the metering pump is usually installed, the storage tank and the metering pump are installed side by side so that the metering pump is disposed below the storage tank storage level, so that the chemicals flowing from the storage tank along the supply line are quantified. The inflow state of the pump was maintained and the pumping was performed as soon as the metering pump was driven in such a state.

In this situation, if the metering pump malfunctions or the control is incorrect, the chemicals are naturally supplied to the supply line where the pressure is lowered to the lower supply line even if the metering pump is not operated. And, in order to prevent this, there was a problem that must be equipped with a separate blocking equipment and facilities, in the present invention in order to easily solve this problem in advance, the installation height of the metering pump (30) auxiliary storage tank (20) By installing higher than the maximum storage level of is to prevent the random supply to the storage pressure of the drug in advance.

In addition, the high pressure injection of fluorine through the injector 50, which will be described later, the high pressure by the injector 50 in the fluorine supply line (P2) in the process of mixing the secondary storage even if the metering pump 30 is not driven There is also an intention to prevent the problem of the arrangement structure to prevent the situation in which the fluorine can be pumped from the tank 20 in advance.

At this time, in a preferred embodiment of the present invention is provided with a plurality of metering pump 30 has a structure that is connected in parallel between the secondary storage tank 20 and the fluorine supply line (P2).

By providing a plurality of metering pumps 30 as described above, when one metering pump fails, the other metering pump 30 connected in parallel is always driven to supply fluorine.

That is, it is provided with a plurality of metering pump 30 in a preliminary side in preparation for an unexpected situation such as failure of the metering pump 30.

On the other hand, in the fluorine injector connected to the water supply, the most important thing in the process of controlling the fluorine concentration is to properly inject the appropriate amount of fluorine to distribute the fluorine evenly to the whole water of the water supply, and to adjust the concentration to be appropriate. .

However, the fluorine injected into the purified water produced in the water purification plant is injected with a very small amount relative to the total amount of purified water, so that the small amount of fluorine is evenly mixed and distributed throughout the purified water, the reliability and technology of the fluorine injector This is a very important factor in judging.

In order to allow the fluorine to be rapidly mixed into the purified water, an injector 50 having a high pressure injection function is installed at a point where the fluorine supply line P2 and the raw water flow line P3 of the fluorine injection device meet.

That is, even in the liquid fluorine dosing device according to the present invention by installing an injector 50 for rapid mixing, the fluorine supplied along the fluorine supply line (P2) through the injector 50 is pressurized through the pressurized water pump 61 It is configured to be sprayed with high pressure to the raw water flow line (P3) with the pressurized water.

The injector 50 has a function of injecting at a high pressure, and thus has an effect of rapidly inducing fluorine to a vacuum in the fluorine supply line P2, so that fluorine quickly arrives at the injection point, and rapid mixing occurs.

In addition, since the time of circulation from the injection to the result of the concentration control is fast, the result of the injection can be quickly analyzed, which has the advantage of quick response.

In particular, there is no need to install expensive additional equipment for the fluorine concentration control has an economic advantage, if the rapid mixing by the high-pressure injection method through the injector 50, do not give a pump to the metering pump 30 It also has a good effect on the life of the.

On the other hand, in the case of rapid mixing by the high-pressure injection method through the injector 50, a vacuum may be formed in the fluorine supply line (P2) as described above, the fluorine in the distant by this vacuum to draw quickly If the vacuum pressure to be quickly supplied to the point is not cut off at a suitable place, the vacuum pressure is applied to the metering pump 30, which adversely affects the metering pump 30 by the siphon action. The problem that there is a bunch comes to the metering pump (30).

Therefore, in the present invention, in order to prevent the cyphon action between the metering pump 30 and the injector 50, the air supply means 40 is separately connected to the fluorine supply line P2.

That is, when the injector 50 is operated for rapid mixing of fluorine, a vacuum may be formed in the fluorine supply line P2 between the metering pump 30 and the injector 50 as described above. By supplying air to the fluorine supply line (P2) in which the vacuum is formed through the air supply means 40 to form a peak, the function of the injector 50 is prevented from going to the metering pump 30 at the same time. It will be able to maintain the maximum effect.

At this time, a check valve 41 is provided between the air supply means 40 and the fluorine supply line P2 to prevent fluorine in the fluorine supply line P2 from flowing into the air supply means 40.

As described above, the components of the fluorine stored in the main storage tank 10 and the sub storage tank 20 before being introduced into the raw water undergoing the filtration process through the fluorine supply line P2 have been described. In this section, we will look at the flow of raw water through filtration and other components.

Filtration collection 60 is provided on the flow line P3 of the raw water in the process of flowing the raw water filtered through the filtration process in the filter paper (not shown), the purified water 70 in the filter collection 60 A channel having a predetermined length for inducing the flow of raw water is formed in (), and a flow meter 62 for measuring the flow amount of the raw water is provided on the channel.

The flow meter 62 installed as described above is a means for accurately detecting the flow rate of the raw water flowing into the water purification tank 70 through the water channel. The flow rate of the raw water and the specification of the water channel correspond to the flow of the raw water flowing from the upstream layer to the downstream layer. In contrast, it consists of a configuration for measuring the flow of raw water.

And, on the raw water flow line (P3) of the filter collection 60, injector 50 and fluorine supply for injecting a liquid fluorine silicate, that is, fluorine in a predetermined ratio, in response to the sensed measured value of the flow meter 62 A line P2 is provided for connection.

In addition, the raw water flow line (P3) is provided with a pressurized water pump 61 to take a portion of the raw water from the filter collection 60 to mix well with the raw water and fluorine.

That is, the raw water pressurized through the pressurized water pump 61 is delivered to the injector 50 so that the fluorine and the pressurized water are injected at high pressure.

In addition, the purified water 70 receives raw water containing fluorine to perform a water purification process. At this time, a part of the raw water contained in the purified water 70 is extracted on a pipe P4 connected to one side of the purified water 70. Sampling pump 71 is provided.

Further, at the other end of the pipe P4, a fluorine concentration analyzer 80 for measuring the concentration ratio of fluorine ions contained in the raw water to be extracted and flown by the sampling pump 71 is provided.

Here, as described above, the flow meter 62 for measuring the flow rate of the raw water, the measuring scale 21 for measuring the input amount of fluorine, the water level meter 22, the flow rate and the purified water 70 measured from the metering pump 30 side The fluorine concentration analyzer 80 for measuring the fluorine ion concentration ratio corresponding to the received raw water is configured to apply each measurement value to the control panel 90.

At this time, the control panel 90 controls the driving of the metering pump 30 to maintain the concentration of the raw water accommodated in the purified water 70 and the concentration of fluorine ions contained in the raw water at a constant level in response to each signal applied. Done.

On the other hand, the control panel 90 is connected to the monitoring system 91 of the central control room to allow the management operator to easily check the states of the above-described components, and the monitoring system 91 has the states of the above-described components. It is preferable to have a configuration including an operation unit for confirming that the selective control.

In addition, the management operator through the control panel 90, of course, it is possible to control each configuration.

In addition, it is preferable that the local health center 92 is configured to monitor the operation management status through communication in connection with the monitoring system 91 of the central control room.

In other words, the health center 92 in the area where the water purification plant is installed is able to check and check the state of fluoride input and data accordingly at all times.

As such, by allowing constant monitoring at the water treatment plant and the local public health center (92), it is possible to maximize the reduction of human costs by establishing a safe triple operation system.

On the other hand, looking at the driving relationship of the liquid fluorine metering device of the present invention according to this configuration, first, the fluorine stored in the main storage tank 10 installed outdoors to be delivered to the secondary storage tank 20 installed indoors to be stored. do.

In this case, the auxiliary storage tank 20 is usually supplied with only a suitable amount of fluorine for each day of fluorine input amount, thereby preventing the excessive input of fluorine in advance.

In addition, the raw water flowing into the purified water 70 through the raw water flow line P3 in the filtration process passes through the filtration collection 60 formed on the raw water flow line P3 and the water channel. The flow rate is detected by 62).

On the other hand, the flow meter 62 applies the sensed signal to the control panel 90, the control panel 90 controls the driving of the metering pump 30 associated with the auxiliary storage tank 20 based on this signal. Done.

When the metering pump 30 is controlled and driven in this way, the fluorine is pumped through the fluorine supply line P2 in the auxiliary storage tank 20, and the fluorine pumped in this way is connected to the flow line P3 of the raw water. The injector 50 is operated and mixed with the pressurized water provided from the pressurized water pump 61 to be injected at a high pressure, thereby undergoing a process of rapidly mixing raw water and fluorine.

Through the injector 50 through the rapid mixing process, the liquid fluorine is supplied to the raw water, so that a small amount of fluorine is more quickly and evenly distributed in the raw water.

Meanwhile, as described above, in order to prevent the occurrence of the cyphon action on the fluorine supply line P2 during rapid mixing by the injector 50, the appropriate air is supplied from the air supply means 40 to the fluorine supply line P2. Of course, it will be supplied to).

In addition, the control panel 90 checks the fluorine input amount of the appropriate level through the flow rate measured at the metering balance 21, the water level meter 22 and the metering pump 30 in terms of the fluorine input amount. The confirmed status signal is applied to the monitoring system 91 so that the operation manager can confirm it.

Through the above-described process, a predetermined fluorine which has undergone rapid mixing on the raw water flow line P3 is introduced and mixed with the flowing raw water, and the raw water in which the fluorine is mixed is purified water 70 through the elemental flow line P3. Flows to

Then, a part of the raw water flowed into the purified water 70 is again flowed to the fluorine concentration analyzer 80 along the pipe P4 by the sampling pump 71, and the fluorine concentration analyzer 80 is again fed. The concentration ratio of fluorine ions contained in the solution is measured and the signal is applied to the control panel 90.

Therefore, the control panel 90 adjusts the amount of fluorine input according to the rotation of the metering pump 30, that is, the rotation of the metering pump 30, corresponding to the measured value of the fluorine concentration analyzer 80. The ratio of fluorine ion concentration contained in the raw water of the purified water 70 in the process is to be constantly controlled.

On the other hand, the reference numeral 14 that is not shown and described in the drawings shows the inlet 14 provided in the fluorine inlet line (P1) to supply and store the fluorine in the main storage tank 10 from the outside.

Although the present invention has been described in detail only with respect to the specific embodiments described, it will be apparent to those skilled in the art that various modifications and variations are possible within the technical spirit of the present invention, and such modifications and modifications belong to the appended utility model claims. It is natural.

1 is a block diagram showing the configuration of a fluorine input device for injecting fluorine in the powder state according to the prior art,

Figure 2 is a block diagram for explaining the configuration and operation relationship of the liquid fluorine dosing device according to a preferred embodiment of the present invention.

Explanation of symbols on the main parts of the drawings

10: main storage tank 11: weighing scale

12 water level 13 emergency storage tank

15: electric valve 20: auxiliary storage tank

21: measuring scale 22: water gauge

23: Fluorine overflow prevention jaw 24: Leakage detection sensor

25 float valve 30 metering pump

40: air supply means 41: check valve

50: injector 60: filtered

61: pressurized water pump 62: flow meter

70: purified water 71: sampling pump

80: fluorine concentration analyzer 90: control panel

91: Monitoring System 92: Local Health Center

Claims (4)

A main storage tank (10) installed in the emergency storage tank (13) outdoors and provided to store and supply a large amount of fluorine, and having a water level meter capable of measuring and sensing a reduction in fluorine stored therein; Connected to the main storage tank 10 and the fluorine supply line (P2) is installed indoors provided with a fluorine overflow bump (23), fluorine for one day through the electric valve 15 provided on the fluorine supply line (P2) In consideration of the input amount, the appropriate amount of fluorine is supplied and stored to prevent the excessive input of fluorine in advance, and the weighing scale 21 is installed at the lower part so that the fluorine storage amount can be checked and monitored. An auxiliary storage tank 20 having a water gauge 22 installed therein; It is installed at a position higher than the maximum fluorine storage level of the auxiliary storage tank 20, and by the control of the control panel 90 to pump an appropriate amount of fluorine stored in the auxiliary storage tank 20 to supply to the raw water flow line (P3). A metering pump 30 installed on the fluorine supply line P2; Pulling the fluorine pumped by the metering pump 30 at a high pressure with a pressurized water provided from the pressurized water pump 61 in a high-pressure injection into the raw water flow line (P3) fluorine supply line so as to rapidly mix fluorine ( An injector 50 installed at the intersection of P2) and the raw water flow line P3; The check valve 41 is separately connected to the fluorine supply line P2 through the injector 50 in order to prevent the siphon action caused by the vacuum formed in the fluorine supply line P2 during the rapid mixing of the fluorine by the injector 50. Air supply means 40 provided to supply air; Filtration collection 60 and a water channel are provided so that fluorine in the liquid state can be introduced into the raw water flow line P3 through which the filtered raw water flows to the purified water 70, and the raw water according to the flow of raw water on the water channel is provided. A flow meter 62 arranged to measure and detect the water level; A fluorine concentration analyzer 80 for measuring a concentration of fluorine ions by extracting a sample of some raw water through a sampling pump 71 in the process of purifying raw water containing fluorine contained in the purified water 70; The flow meter 62, the metering scale 21, the water level meter 22, the fluorine flow amount measured on the side of the metering pump 30 and the signal detected from the fluorine concentration analyzer 80 is applied to calculate the calculated pump 30 Control panel 90 for controlling the drive of;   The management operator manages various signals applied to the control panel 90 and the operation relationship between the fluorine residual amount of the main storage tank 10 and the auxiliary storage tank 20 and the various components installed on the fluorine supply line P2. Liquid fluorine dosing device characterized in that it comprises a monitoring system (91) provided in the central control room to be displayed to verify. The method of claim 1, Liquid fluorine metering device, characterized in that the float valve 25 having a forced shut-off function is installed in the auxiliary storage tank 20 so that a predetermined amount or more of fluorine is not supplied. The method according to claim 1 or 2, Liquid fluorine quantitative input device, characterized in that configured to monitor the operation management status according to the fluorine input in the local health center (92) connected in communication with the monitoring system (91). The method of claim 3, The fluorine overflow prevention jaw (23) is connected to the control panel 90, the liquid fluorine quantitative input characterized in that it has an alarm system consisting of a leakage sensor (24) that allows the management operator to quickly grasp the fluorine leakage situation Device.

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