KR100863522B1 - Water purification apparatus injecting cohesive agents using a exhausting cylinder - Google Patents

Abstract

The present invention relates to a water purifying apparatus for injecting a flocculant using a discharge cylinder, and by applying a discharge cylinder that can freely adjust the movement speed of a piston by a motor, it is possible to control the amount of flocculant largely, Although the amount of flocculant, of course, increases in the amount of raw water, a sufficient amount of flocculant may be added even when the required amount of flocculant is sharply increased due to a situation in which the water quality becomes turbid due to a sharp increase in turbidity.

In the present invention, the flocculant is added to the withdrawal of raw water, and after passing through a mixed paper, agglomerated paper, a sedimentation basin and a filter paper provided with a stirrer, the water purification device for removing foreign substances and harmful substances contained in the contaminated raw water. A first discharge cylinder and a second discharge cylinder are provided for the input, while one of them sucks the flocculant from the storage container in which the flocculant is stored, while the other discharges the flocculant to continuously introduce the flocculant into the raw water. The suction and discharge operations are alternately operated. The first discharge cylinder and the second discharge cylinder retract the cylinder and the cylinder, and retract the coagulant of the storage container into the cylinder when retracting. The piston for discharging the flocculant, the motor providing the driving force for the retraction of the piston, and the rotational force of the motor. It comprises a conversion means for converting a transmission line capacity of composting.

Flocculant, Discharge Cylinder

Description

WATER PURIFICATION APPARATUS INJECTING COHESIVE AGENTS USING A EXHAUSTING CYLINDER}

1 is a reference configuration for explaining a flocculant input device of the water purification device according to the prior art

Figure 2 is a reference diagram schematically showing the whole water purification process by the water purification device of the present invention.

Figure 3 is a block diagram for explaining the water purification device according to the present invention.

Figure 4 is a perspective view specifically showing a discharge cylinder according to the present invention.

5 and 6 are reference views showing the operation of the discharge cylinder according to the present invention.

7 to 11 are a series of reference diagrams for explaining the operation of the flocculant dosing device.

* Description of the symbols for the main parts of the drawings *

110,120: discharge cylinder 111,121: cylinder

112A, 122A: Rack 112B, 122B: Pinion

112C, 122C: Motor 113,123: Piston

114,124: Guide member 114A, 124A: Guide groove

115,125: suction line 116,118,126,128: check valve

117,127: discharge line 130: storage container

140 controller 150 flow meter

160: turbidity sensor 180: sensor

The present invention relates to a water purifying apparatus, and in particular, by applying a discharge cylinder that can freely adjust the movement speed of the piston by a motor, it is possible to control the input amount of the flocculent largely, thereby increasing the amount of raw water as well as a small amount of flocculant. Nevertheless, the present invention relates to a water purification apparatus for introducing a coagulant by using a discharge cylinder in which an appropriate amount of a coagulant is added even when a required amount of coagulant is rapidly increased due to a situation in which the water quality becomes turbid due to a sharp increase in turbidity.

In general, the water purification apparatus removes contaminants contained in water through a process such as mixing, flocculation, sedimentation, filtration and sterilization after collecting contaminated raw water.

The water purification process by the water purification device is briefly described as follows. In other words, when raw water taken from the intake station enters the water well, water purification chemicals such as a flocculant are introduced in the chemical input room to remove foreign substances and harmful substances. After that, the admixture is added to mix the drug and the water in the mixed paper well, in the flocculation paper to sink the aggregates contained in the water to discard the waste and send only clear water to the filter paper. In the filter paper, small agglomerates that could not be removed from the sedimentation basin are passed through a thick layer of sand to eliminate them. Then, the chlorine is added to the water to disinfect the remaining bacteria before the water passed through the filter paper is sent to the drain for supply to each household.

1 is a reference configuration for explaining a flocculant input device of the water purification device according to the prior art.

As shown in the related art, the water purifying apparatus according to the related art includes a fixed quantity pump 10 for sucking the coagulant of the quantity from the storage vessel 13 and inputting it into the raw water supply pipe L according to the flow rate of the raw water.

The metering pump 10 is provided with a rotor (10A) having a plurality of impeller and is initially set in accordance with the flow rate of the raw water supplied to the mixing paper in the impingement to input the flocculant.

However, the conventional water purifying device has no problem in putting the correct amount of flocculant initially set due to the characteristics of the metering pump 10, but it is difficult to actively cope with changes in the flow rate and turbidity of raw water, and thus it is a fatal problem that the amount of flocculant cannot be adjusted. There was this. In particular, such a problem caused a deterioration in water quality due to the inability to supply the required amount of flocculant in a situation where turbidity increased due to a sudden increase in the flow rate of raw water, such as during a summer heavy rain.

Therefore, there is a need for a new type of water purifying apparatus capable of smoothly adjusting the input amount of the flocculant in response to changes in flow rate and turbidity. In particular, although the amount of raw water increases due to heavy rainfall during the summer season, the amount of flocculant can be controlled greatly from the trace amount to the bulk due to the domestic climate characteristic that the water quality becomes very turbid due to the increase in turbidity. High water purification equipment is needed.

Accordingly, the present invention has been proposed to solve the above-mentioned conventional problems, and an object of the present invention is to add a sufficient amount of flocculant required while actively dealing with a situation in which water quality and turbidity increase rapidly and water quality deteriorates. The present invention provides a water purifying apparatus for introducing a flocculant using a discharge cylinder.

In order to achieve the above object, the water purifying apparatus for introducing a flocculant using the discharge cylinder according to the technical idea of the present invention is a mixed paper, agglomerated paper, sedimentation paper and filter paper provided with a stirrer after adding a flocculant to the withdrawn raw water. In the water purifying apparatus for removing foreign substances and harmful substances contained in contaminated raw water by passing through, having a first discharge cylinder and a second discharge cylinder for the input of the flocculant, one of them from the storage container in which the flocculant is stored While the coagulant is being sucked, the other one alternately operates the mutual suction operation and the discharge operation so that the coagulant is continuously injected into the raw water by discharging the coagulant, and the first discharge cylinder and the second discharge cylinder are cylindrical cylinders. And retracting the flocculant of the storage container into the cylinder during the retreat while retreating in the cylindrical cylinder. And a converting means for converting the piston into a linear force for advancing and retracting the piston, the piston for discharging the coagulant from the cylinder, the motor for providing the driving force for advancing and retracting the piston. It is characterized by technical configuration.

Here, the conversion means may be characterized in that it comprises a rack which is engaged with the pinion and is coupled to the piston and converts the rotational force of the pinion into a linear force to transmit to the piston.

In addition, the conversion means may be characterized in that it further comprises a guide member having a guide groove in the longitudinal direction for guiding the movement of the rack.

Further, a first suction line connecting the storage container and the first discharge cylinder, a first suction line check valve installed on the first suction line to block a coagulant from flowing back into the storage container, and the storage A second suction line connecting the container and the second discharge cylinder, a check valve for the second suction line installed on the second suction line to block backflow of the flocculant into the storage container, and the first discharge cylinder. A first discharge line connected to guide the discharged coagulant into the raw water, a first discharge line check valve installed on the first discharge line to block the coagulant from flowing back into the first discharge cylinder, and A second discharge line connected to the second discharge cylinder to guide the discharged coagulant into the raw water, and a second soil installed on the second discharge line to block the coagulant from flowing back to the second discharge cylinder. It may be characterized by including a check valve for the outlet line.

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In addition, a flow meter for measuring the amount of raw water supplied to the mixed paper, characterized in that for adjusting the input amount of the flocculant by adjusting the operating speed of the first discharge cylinder and the second discharge cylinder in accordance with the flow rate measured by the flow meter You can do

In addition, further comprising a turbidity sensor for measuring the turbidity of the raw water supplied to the mixed paper, by adjusting the operating speed of the first discharge cylinder and the second discharge cylinder according to the turbidity measured by the turbidity sensor to adjust the amount of flocculant On the other hand, it may be characterized by adjusting the operating speed of the stirrer.

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

EXAMPLE

The present invention is provided with a pair of discharge cylinders that operate alternately while cooperating with each other for the input of flocculant, while actively coping with the worst situation in which the water quality and turbidity increase rapidly due to the summer heavy rain and the like, and the water quality becomes cloudy. It is configured to smoothly supply the required amount of flocculant.

Hereinafter, the configuration of the water purification apparatus according to the present invention will be described in detail.

Figure 2 is a reference diagram schematically showing the whole water purification process by the water purification apparatus of the present invention, Figure 3 is a block diagram for explaining the water purification apparatus according to the present invention.

First, referring to FIG. 2, when the water purification process according to the present invention is roughly examined, the method is not significantly different than before. In other words, the raw water withdrawn is sent to the landing well and then mixed with, agglomerated, sedimentation, and filter paper to remove contaminants contained in the raw water by mixing, flocculation, sedimentation, filtration and sterilization. At this time, while the raw water is supplied to the mixed paper from the impingement, a flocculant for removing contaminants is added, and after the raw water passes through the filter paper, chlorine is added to sterilize the raw water bacteria.

Among the processes described above, the water purification apparatus according to the present invention is mainly concentrated in the process of injecting the flocculant, and includes two pairs of discharge cylinders 110 and 120 that operate in cooperation with each other for the flocculant injection.

The discharge cylinder (110, 120) is a volumetric reciprocating pump that discharges the piston or plunger by reciprocating and discharges a small amount because it uses a motor (DC motor, AC motor) can be easily adjusted to provide a driving force From the coagulant to a large amount of coagulant, there is an advantage that the appropriate amount of coagulant can be actively added depending on the flow rate and turbidity of the raw water. In particular, when the amount of raw water and turbidity increase rapidly, such as during a summer heavy rain, a large amount of flocculant needs to be added, and the required amount of flocculant can be added with almost no problem. The configuration of the discharge cylinder (110, 120) will be described in detail later.

Water purification device of the present invention including a pair of discharge cylinders (110, 120) to cooperate with each other as described above, the flocculant input device 100 consisting of the discharge cylinder (110, 120), flocculant storage container for storing the flocculant (130, or flocculant supply source), the flow meter 150 and turbidity sensor 160, which is installed in the raw water supply line (L) to measure the flow and turbidity of the raw water, respectively, and the stirrer to mix the coagulant and water in the mixed paper well 170, a controller 140 is connected to and controls the above-described components.

The flocculant input device 100 serves to inject the flocculant stored in the storage container 130 into the raw water moving along the raw water supply line (L). To this end, the coagulant injector 100 has a first discharge cylinder 110 and a second discharge cylinder 120 for continuously inhaling and discharging the coagulant while operating alternately with each other, and the suction lines 115 and 125 connected to the coagulant input device 100 at the center thereof. And discharge lines 117, 127 and check valves 116, 118, 126, and 128.

To this end, the first discharge cylinder 110 and the second discharge cylinder 120 are connected in parallel so that one of the suction and the discharge operation to discharge the flocculant while one of the inhaling the flocculant from the storage container 130 Alternate operation To this end, if the advancing speed of the pistons 113 and 123 for the discharge of the cylinders 110 and 120 and the retreating speed of the pistons 113 and 123 for the suction are the same, the piston 113 and the second discharge cylinder of the first discharge cylinder 110 ( The piston 123 of the 120 may be made to repeat the advance and retraction with a time difference from each other.

On the contrary, when the retracting speed of the pistons 113 and 123 for suction is faster than that of the pistons 113 and 123 for the discharge of the cylinders 110 and 120, the pistons 113 and 123 of any of the discharge cylinders 110 and 120 are moved out. While finishing, the pistons 113 and 123 of the other discharge cylinders 110 and 120 may retreat quickly and wait for the next discharge. If possible, as in the latter case, controlling the retraction speed to be faster than the advancing speed of the pistons 113 and 123 is desirable for continuous dosing of flocculant.

The first discharge cylinder 110 is connected to the storage container 130 by the first suction line 115 and the raw water supply line (L) by the first discharge line 117. The first suction line check valve 116 is installed on the first suction line 115 to block the backflow of the flocculant to the storage container 130, and the first discharge line 117 has a flocculant on the first discharge line 117. The check valve 118 for the first discharge line is installed to block the flow back to the cylinder (110).

The second discharge cylinder 120 is connected to the storage container 130 by a second suction line 125 and the raw water supply line (L) by a second discharge line 127. The second suction line 125 is provided with a check valve 126 for the second suction line to prevent the flocculant from flowing back into the storage container 130, and the flocculant is disposed on the second discharge line 127. The check valve 128 for the second discharge line is installed to block the flow back to the discharge cylinder (120).

4 is a perspective view showing in detail a discharge cylinder according to the present invention, Figures 5 and 6 is a reference diagram showing the operation of the discharge cylinder according to the present invention.

As shown, the discharge cylinder (110, 120) according to the present invention is a cylindrical cylinder (111,121), the piston (113,123), the motor 112C, 122C, the rotational force of the motor (112C, 122C) as a linear force It comprises a pinion (112B, 122B), racks (112A, 122A) and guide members (114, 124) which are conversion means for converting.

The cylinders 111 and 121 are hollow tubular bodies having a storage space therein, and the pistons 113 and 123 are installed to be able to move back and forth. As a result, the pistons 113 and 123 suck the coagulant from the coagulant storage container 130 into the cylinders 111 and 121 when retracting, and discharge the coagulant from the cylinders 111 and 121 when the piston 113 and 121 are retracted.

The motors 112C and 122C serve to provide driving force for advancing and retracting the pistons 113 and 123. As such, when the motors 112C and 122C are used to provide the driving force to the pistons 113 and 123, the rotational speed and the direction of the shaft can be easily adjusted. Can be. Therefore, the discharge cylinders 110 and 120 according to the present invention can suck and discharge a small amount of flocculant and can easily suck and discharge a large amount of flocculant. To this end, when inhaling and discharging a small amount of flocculant, the rotational speeds of the motors 112C and 122C are lowered, and in order to suck and discharge a large amount of flocculant, the rotational speeds of the motors 112C and 122C need only be increased.

The converting means serves to convert the rotational force into a linear force between the motors 112C and 122C and the pistons 113 and 123 as described above. Has a simple configuration, including The pinions 112B and 122B rotate in engagement with the shafts of the motors 112C and 122C. The racks 112A and 122A are engaged with the pinions 112B and 122B to transmit linear force to the pistons 113 and 123 while reciprocating. Here, the rack (112A, 122A) is inserted into the guide groove (114A, 124A) formed in the longitudinal direction in the guide member (114, 124) is guided by the guide groove (114A, 124A) when moving forward.

The operation of the flocculant injector 100 configured as described above will be described with reference to FIGS. 7 to 11.

FIG. 7 illustrates an initial state before the flocculant is introduced, and both the first discharge cylinder 110 and the second discharge cylinder 120 have the pistons 113 and 123 advanced in the cylinders 111 and 121. In this state, no suction or discharge of the flocculant occurs.

Thereafter, when the piston 113 of the first discharge cylinder 110 is retracted as shown in FIG. 8, the coagulant stored in the storage container 130 moves along the cylinder of the first discharge cylinder 110 along the first suction line 115. 111) It is sucked inside.

Subsequently, when the piston 113 of the first discharge cylinder 110 that is in the retracted state as shown in FIG. 9 advances, the coagulant sucked into the cylinder 111 of the first discharge cylinder 110 is discharged to form the first It is fed to the raw water supply line (L) along the discharge line (117). Then, the raw water flowing along the raw water supply line (L) and the flocculant are mixed. At this time, the check valve 116 for the first suction line blocks the coagulant from flowing back from the first discharge cylinder 110 to the storage container 130, and the check valve 128 for the second discharge line has a first discharge cylinder ( Blocking of the flocculant discharged from 110 into the second discharge cylinder 120 is blocked.

On the other hand, while the coagulant is discharged from the first discharge cylinder 110, the piston 123 of the second discharge cylinder 120 withdraws and the coagulant stored in the storage container 130 is the second suction line (125) The suction is carried out into the cylinder 121 of the second discharge cylinder 120. As a result, the second discharge cylinder 120 prepares the input of the flocculant to be next to the first discharge cylinder 110. In this case, the second discharge line check valve 128 blocks the suction force of the second discharge cylinder 120 from acting on the coagulant moving through the first discharge line 117.

Thereafter, as shown in FIG. 10, when the first discharge cylinder 110 completes discharging of the flocculant, the piston 123 of the second discharge cylinder 120 that is in the air is advanced and the inside of the cylinder 121 of the second discharge cylinder 120 is moved. The flocculant which was sucked in starts to discharge. The discharged flocculant is introduced into the raw water supply line (L) along the second discharge line (127). Then, a flocculant is added to and mixed with the raw water flowing along the raw water supply line (L).

Thereafter, as shown in FIG. 11, the coagulant stored in the storage container 130 is retracted while the piston 113 of the first discharge cylinder 110 is retracted while the coagulant is discharged from the second discharge cylinder 120. Along the 115 is sucked into the cylinder 111 of the first discharge cylinder 110 to prepare for the input of the coagulant of the next step. In this case, the first discharge line check valve 118 blocks the suction force of the second discharge cylinder 120 from acting on the coagulant moving through the second discharge line 127.

The flocculant input device 100 according to the present invention continuously inputs the flocculant to the raw water while repeatedly performing the cooperative work of the first discharge cylinder 110 and the second discharge cylinder 120 as described above.

As such, the present invention uses the discharge cylinders 110 and 120 which have almost no loss of suction force and discharge force even at a high operating speed for the injection of the flocculant. In particular, since the discharge cylinders 110 and 120 are provided with the driving force from the motors 112C and 122C, which are easy to control the speed, the discharge cylinders 110 and 120 can smoothly supply an increased amount of flocculant even when the flow rate and turbidity of the raw water increase rapidly.

Furthermore, the present invention completely solves the problem that the coagulant should be stopped while injecting the coagulant when the coagulant is supplied to only one discharge cylinder (110, 120) by a pair of discharge cylinders (110, 120) connected in parallel. .

On the other hand, the flow meter 150 is installed in the raw water supply line (L) to measure the flow rate of the raw water supplied to the mixed paper. As such, when the flow meter 150 is installed, the controller 140 grasps the flow rate of the raw water flowing into the mixed paper, and adjusts the operating speed of the first discharge cylinder 110 and the second discharge cylinder 120 to provide an appropriate amount of flocculant. It can be put in.

The turbidity sensor 160 is installed in the raw water supply line (L) together with the flow meter 150 to measure the turbidity of the raw water supplied to the mixed paper. As such, when the turbidity sensor 160 is installed, the controller 140 grasps turbidity of the raw water flowing into the mixed paper, and adjusts the operation speed of the first discharge cylinder 110 and the second discharge cylinder 120 while appropriate amount of flocculant is used. Can be added. In addition, the speed of the stirrer 170 can be adjusted appropriately. Here, the controller 140 adjusts the speeds of the discharge cylinders 110 and 120 and the stirrer 170 in consideration of the flow rate and turbidity of the raw water supplied to the mixed paper. At this time, the amount of flocculant to be added according to the flow rate and turbidity of the raw water follows the standard regulations for water purification.

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Although the preferred embodiment of the present invention has been described above, the present invention may use various changes, modifications, and equivalents. That is, although the present invention mainly uses a flocculant, it is clear that the above-described examples may be appropriately modified and applied in the same manner, such as to target various chemicals for water purification other than the flocculant. Accordingly, the above description does not limit the scope of the invention as defined by the limitations of the following claims.

As described above, in the water purifying apparatus for injecting the flocculant using the discharge cylinder according to the present invention, it is possible to control the amount of the flocculant largely by applying the discharge cylinder which can freely control the movement speed of the piston by the motor. Even when a small amount of flocculant is of course increased in the amount of raw water, a sufficient amount of flocculant can be added even when the water quality becomes turbid and the required amount of flocculant is rapidly increased.

In addition, since the present invention uses a discharge cylinder that exhibits sufficient suction force and earth output even when operated at a high speed, high reliability of coagulant input is ensured at any speed range.

In addition, the present invention is able to add the coagulant without interruption because the coagulant is introduced using two pairs of discharge cylinders arranged in parallel to cooperate with each other.

In addition, the present invention can actively control the operation speed of the discharge cylinder according to the flow rate and turbidity of the raw water, so that there is no insufficient amount of coagulant or excessively added.

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Claims (7)

In the water purification device to remove the foreign substances and harmful substances contained in the contaminated raw water by passing the flocculant into the raw water withdrawal, and then through the mixed paper, flocculation paper, sedimentation basin and filter paper equipped with a stirrer, A first discharge cylinder and a second discharge cylinder are provided for the input of the flocculant, while one of them sucks the flocculant from the storage container in which the flocculant is stored, while the other discharges the flocculant to continuously introduce the flocculant into the raw water. Alternately suction and discharge operation so that The first discharge cylinder and the second discharge cylinder, A cylindrical cylinder; A piston for advancing and retreating within the cylindrical cylinder to suck the coagulant of the storage container into the cylinder when retreating and to discharge the coagulant from the cylinder when advancing; A motor providing a driving force for advancing and retracting the piston; And converting means for converting and transmitting the rotational force of the motor into a linear force for advancing and retracting the piston, And a flow meter for measuring the amount of raw water supplied to the mixed paper, and adjusting the operation speed of the first discharge cylinder and the second discharge cylinder according to the flow rate measured by the flow meter to adjust the input amount of the flocculant. A water purification device for introducing a flocculant using a discharge cylinder. The method of claim 1, wherein the conversion means, A pinion coupled to the shaft of the motor to rotate; And a rack engaged with the pinion and coupled with the piston to convert the rotational force of the pinion into a linear force and transmit the same to the piston. The method of claim 2, The converting means is a water purification device for introducing a flocculant using a discharge cylinder characterized in that it further comprises a guide member having a guide groove in the longitudinal direction for guiding the movement of the rack. The method according to any one of claims 1 to 3, A first suction line connecting the storage container and the first discharge cylinder; A check valve for the first suction line installed on the first suction line to block the flocculant from flowing back into the storage container; A second suction line connecting the storage container and the second discharge cylinder; A check valve for the second suction line installed on the second suction line to block the flocculant from flowing back into the storage container; A first discharge line connected to the first discharge cylinder to guide the discharged flocculant into the raw water; A check valve for the first discharge line installed on the first discharge line to block the flocculant from flowing back to the first discharge cylinder; A second discharge line connected to the second discharge cylinder to guide the discharged flocculant into the raw water; And a second discharge line check valve installed on the second discharge line to block the flocculant from flowing back to the second discharge cylinder. delete delete The method of claim 1, Further provided with a turbidity sensor for measuring the turbidity of the raw water supplied to the mixed paper, By adjusting the operation speed of the first discharge cylinder and the second discharge cylinder according to the turbidity measured by the turbidity sensor to adjust the input amount of the flocculant, the operation speed of the stirrer by using the discharge cylinder Water purification device to inject flocculant.

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