JP2017131834A - Water treatment equipment - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide water treatment equipment used for purification of water, capable of inputting an optimal amount of a medicament with means which does not require power control.SOLUTION: Water treatment equipment 1 comprises: an electrically-driven pump 3; a filtration device 4 containing therein a filter material; a medicament holding part 8; and a medicament addition adjustment part 5 for inputting a medicament to water to be treated. The medicament addition adjustment part 5 is configured to input the medicament to the water to be treated according to a flow rate of the water to be treated, so that it is possible to add a treatment agent to the water to be treated by an amount according to the flow rate, so that it is possible to input the optimal amount of the medicament to the water to be treated in a pipeline 2 with means which does not require power control.SELECTED DRAWING: Figure 1

Description

  The present invention relates to a water treatment apparatus for small-scale facilities, which relates to a water treatment apparatus that purifies water by removing turbid components contained in well water, river water, rainwater, tap water, and the like. is there.

  As a water purification device for purifying various raw waters such as sewage, various wastewaters, irrigation water, seawater, a filtration device is raised. For filtration, sand, fibers, membranes, and the like are used as filter media, and the turbid components in the raw water are removed by the sieving effect and adsorption effect generated between the turbid components in the raw water and the filter media. In order to more effectively purify water, conventionally, this type of filtration device is generally added with chemicals into raw water, which is effective in improving the purification performance of water treatment and shortening the filtration time. (For example, refer to Patent Document 1).

  Agents to be added include pretreatment agents such as an aggregating agent for aggregating fine particles contained in raw water and an oxidizing agent for insolubilizing dissolved components.

  Hereinafter, the water purification apparatus will be described with reference to FIG.

  As shown in FIG. 6, the water treatment apparatus 101 includes a pipe 102, an electric pump 103, a stirring tank 104, and a filtration tank 105, and the medicine stored in the medicine holding unit 106 is transferred to the stirring tank 104 by the medicine addition means 107. Added.

  In addition, some types of water treatment apparatuses of this type are adjusted in accordance with the state of the water to be treated. The chemical addition means 107 includes a mechanism that transmits information obtained from the measurement unit 108 that measures the state of water in the stirring tank to the control unit 109 and adjusts the amount of chemical added to the stirring tank 104.

Japanese Patent Laying-Open No. 2015-73942

  In such a conventional water treatment apparatus, the state of the measured water to be treated is electrically transmitted to the control unit, and the chemical addition amount is adjusted by a chemical injection pump or the like, and the electric control is performed. Since electric wiring for a mechanism and installation is required, the manufacturing cost of the water treatment apparatus was increased.

  Therefore, the present invention solves the above-described conventional problems, and an object thereof is to provide a water treatment device that does not require an advanced measurement device, grasps the state of water to be treated, and adjusts the amount of chemicals to be added. And

  In order to achieve this object, a water treatment device according to the present invention is an electric motor for sucking and discharging treated water from stored water in a water treatment device for removing turbid components contained in water. A chemical pump, a filtration device enclosing a filter medium, and a chemical addition adjusting unit for introducing the chemical into the water to be treated. The chemical addition adjusting unit removes the chemical according to the flow rate of the water to be treated. In this way, the intended purpose is achieved.

  According to the present invention, there is provided a chemical addition adjusting unit that introduces a chemical into the water to be treated, and the chemical addition adjusting unit is configured to feed the chemical into the water to be treated according to the flow rate of the water to be treated. Since the chemical addition mechanism of the chemical addition adjustment unit is operated by the hydrodynamic action of the water to be treated flowing in the pipe, it becomes possible to add the chemical amount corresponding to the flow rate in the pipe to the water to be treated. It is possible to obtain an effect that the medicine can be introduced in an optimum amount by means that does not require power control.

The schematic diagram which shows the water treatment apparatus of Embodiment 1 of this invention. The schematic diagram which shows the chemical | medical agent addition adjustment part of the water treatment apparatus of Embodiment 2 of this invention. (A) Front view of the medicine injection section of the present invention, (b) Side view of the medicine injection section of the present invention (A) Schematic diagram at the time of connecting the drug holding part and the drug injection space when the solid drug is used in Embodiment 2 of the present invention, (b) Schematic diagram at the time of non-connection (A) Schematic diagram at the time of connecting the drug holding part and the drug injection space when a liquid or gaseous drug is used in Embodiment 2 of the present invention, (b) Schematic diagram at the time of non-connection Schematic diagram showing a conventional water treatment device

  The water treatment according to the present invention is a water treatment apparatus for removing turbid components contained in water, and an electric pump for sucking and discharging treated water from stored water, and a filtration apparatus enclosing a filter medium. And a chemical holding unit and a chemical addition adjusting unit for introducing the chemical into the water to be treated, and the chemical addition adjusting unit is configured to supply the chemical into the treated water according to the flow rate of the treated water. Device. As a result, the drug addition mechanism of the drug addition adjustment unit operates at a size corresponding to the flow rate in the pipe, and an amount of drug corresponding to the amount of operation is added. Since it can be added to the water to be treated, there is an effect that the chemical can be introduced into the water to be treated in the pipe in an optimum amount by means that does not require power control.

  In addition, the drug addition adjusting unit has a drug loading unit that rotates according to the flow rate inside the pipe, and the drug loading unit has a plurality of drug injection spaces for temporarily holding the drug injected from the drug holding unit. A plurality of the drug injection spaces are connected by fluid passages through which liquid flows, and when the drug holding portion and the drug injection space are temporarily connected by rotation of the drug injection portion, the drug injection space is connected to the inside of the pipe. You may make it the structure which distribute | circulates a liquid. As a result, when the flow rate of the water to be treated is large, the number of rotations of the medicine charging unit is large, and the number of times of drug injection performed along with the rotation is increased. Since the number of times of drug injection to be performed is reduced, it is possible to add the drug in an amount corresponding to the flow rate of the water to be treated in the pipe. There is an effect that a fixed amount of a drug can be stably added without requiring pressure.

  Moreover, the chemical | medical agent thrown into to-be-processed water may be a solid chemical | medical agent. Thereby, there is an effect that a certain amount of medicine can be stably added.

  Moreover, the chemical | medical agent thrown into to-be-processed water may be a liquid chemical | medical agent. Thereby, there exists an effect that a chemical | medical agent can be added stably.

  Moreover, the chemical | medical agent thrown into to-be-processed water may be a gaseous chemical | medical agent. Thereby, there exists an effect that a chemical | medical agent can be added stably.

  Further, the medicine charging part may be in a turbine shape. As a result, the chemical injection unit receives the hydrodynamic action of the water to be treated flowing in the pipe, thereby operating the chemical addition mechanism of the chemical addition adjusting unit, and the amount of chemical corresponding to the flow rate in the pipe is treated. Therefore, it is possible to stably add a certain amount of medicine by means that does not require power control.

(Embodiment 1)
As shown in FIG. 1, the water treatment device 1 includes an electric pump 3 connected to a pipe 2 connected to a well or a water tank as water storage, and a filtration device 4 connected downstream of the electric pump 3. . In the path of the pipe 2 that supplies water from the electric pump 3 to the filtration device 4, there is a drug addition adjusting unit 5 that supplies the drug to the water to be treated. The drug addition adjusting unit 5 includes a drug holding unit 8. In accordance with the flow rate of the water to be treated, the chemical is introduced from the chemical holding unit 8 into the water to be treated.

  The filter device 4 constituting the water treatment device 1 is a container in which a filter medium 6 is enclosed. The filter medium 6 is not limited to this as long as it is a filter medium used for general filtration such as sand, fiber, and filter.

  At the time of water treatment, raw water stored by the electric pump 3 is introduced into the filtration device 4. The amount of raw water introduced into the filtration device 4 by the flow rate adjusting valve 7 is adjusted. When the raw water passes through the filter medium 6, the turbid components in the raw water are adsorbed on the surface of the filter medium 6 to purify the water, and the purified treated water passes through the piping on the downstream side of the filtration device 4 and the water treatment device. 1 is discharged to the outside. At this time, since fine particles and ionic substances are difficult to adsorb on the surface of the filter medium 6 and may be difficult to purify, a high purification effect can be obtained by adding a chemical before filtration. A flocculant and an oxidizing agent are used as chemicals added to enhance the purification effect in filtration. The flocculant is added to agglomerate fine particles to facilitate adsorption to the filter medium. As the flocculant, polyaluminum chloride (PAC), sulfuric acid band, polysilica iron (PSI), etc. are used. It will not be restricted to these as long as it exhibits an effect. Oxidizing agents are added to insolubilize ionic substances and facilitate adsorption on filter media. As oxidizing agents, sodium hypochlorite, chlorine, ozone, etc. are used, and they exhibit the above effects. If there is, it is not restricted to these.

  The connection of each component is not limited to either a direct connection or a method performed via the pipe 2, but it is preferable to determine a connection method in consideration of the arrangement and operability of each component. . Moreover, you may install members, such as a valve | bulb, a branch, and an elbow, in the middle of the piping 2 as needed.

  The pipe 2 to be used may be any material and structure that can withstand the water pressure of the electric pump 3, but from the viewpoint of durability and ease of processing, for example, a vinyl chloride resin, a steel pipe, or a composite material thereof is used. A straight pipe can be used. The nominal diameter is preferably large so that the loss head is low. For example, the nominal diameter is 15 to 50 millimeters, and the thickness is preferably about 1 to 5 millimeters.

  The electric pump 3 is a pump that is driven by an electric motor that sucks and discharges groundwater from a well or water tank as a storage water. For example, centrifugal pumps such as spiral pumps, jet pumps, cascade pumps, axial pumps, diagonal flows There are pumps. When used in general households, the depth of the well should be about 10 to 20 meters for shallow wells and 20 to 30 meters or more for deep wells. Loss of the downstream piping 2 and filtration device 4 In consideration of the water head, one having a head of 20 meters or more is preferable, and a centrifugal pump such as a spiral pump or a jet pump is more preferable.

  The electric pump 3 includes a non-automatic pump that operates with a power switch, or an automatic pump that includes a pressure filtration device and a pressure switch and automatically operates when the pressure falls below a predetermined pressure. Any pump can be used for the apparatus 1. The flow rate discharged by the electric pump 3 is, for example, about 5 liters to 50 liters per second. For general household use, the flow rate is about 5 liters to 15 liters per second. Is preferred.

  According to such a configuration, since the chemical addition adjusting unit 5 has a structure in which the chemical is added to the water to be treated according to the flow rate of the water to be treated, the hydrodynamic action of the water to be treated that circulates in the pipe. Thus, it becomes possible to operate the chemical addition mechanism of the chemical addition adjusting unit and add the chemical amount corresponding to the flow rate in the pipe to the water to be treated. For this reason, a chemical | medical agent can be thrown into the to-be-processed water in the piping 2 by the means which does not require electric power control in the optimal quantity.

  In the present embodiment, the water to be treated is water from a well or a water tank as water storage, but the object to be treated is not limited to this, and in the apparatus for purifying water by processing such as filtration, The same effect can be obtained if the drug is used for treatment.

(Embodiment 2)
FIG. 2 shows a detailed structure around the drug addition adjusting unit 5 in FIG. 1 of the first embodiment.

  2, the same components as those in FIG. 1 are denoted by the same reference numerals, and detailed description thereof is omitted.

  In FIG. 2, the chemical addition adjusting unit 5 includes a chemical injection unit 501 having a turbine-like structure that can rotate in the direction of arrow A along with the supply of water to be treated inside the pipe 2, and a chemical is held outside the pipe 2. The medicine holding part 502 is provided. The drug injection unit 501 includes a drug injection space 503 into which a fixed amount of drug can be injected, and a fluid passage 504 through which a liquid can flow through the opposite side of the drug injection space 503. The medicine holding unit 502 and the medicine injection space 503 are temporarily connected by the rotation of the medicine charging unit 501. When the medicine holding unit 502 and the medicine injection space 503 are connected, the medicine injection space 503 flows through the fluid passage 504 and the inside of the pipe 2.

  In the present embodiment, the operation of moving according to the flow rate of the water to be treated, which has been described in the first embodiment, rotates the chemical charging unit 501 having a turbine-like structure together with the feed of the water to be treated inside the pipe 2. In other words, the medicine charging unit 501 rotates according to the flow rate of the water to be treated. That is, the addition of the chemical to the water to be treated inside the pipe 2 is executed according to the number of rotations of the chemical charging unit 501. By providing such a structure, it becomes possible to add the chemical | medical agent quantity corresponding to the flow volume inside the piping 2 to to-be-processed water.

  FIG. 3 is a component diagram of the medicine charging unit 501, (a) is a front view, and (b) is a side view.

  In FIG. 3, the drug injection space 503 is located on the outer periphery of the drug input part 501, and the fluid passage 504 is configured to penetrate the drug input part 501. At this time, one or a plurality of drug injection spaces 503 may exist and are determined according to the type of drug to be used and the required input amount. Moreover, the structure of the chemical | medical agent injection | throwing-in part shown in FIG. 3 is an example, and if it satisfy | fills the structure of the chemical | medical agent addition adjustment part 5, it will not restrict to this.

  Here, the drug is one of solid, liquid, and gas, and the mechanism for loading the drug differs between the solid case and the liquid or gas case.

  FIG. 4 shows a detailed structure around the drug addition adjusting unit 5 when the drug is a granular solid, (a) shows a state where the drug holding unit 502 and the drug injection space 503 are connected, (b) Indicates a state in which the medicine holding unit 502 and the medicine injection space 503 are not connected.

  When the granular solid medicine 506 is used as the medicine, the medicine injection into the medicine injection space 503 is performed when the medicine injection space 503 and the medicine holding portion 502 are in contact with each other, and the solid medicine 506 is held by the expansion and contraction action of the elastic body 505. The drug is injected into the medicine injection space 503 from the unit 502. When the medicine holding portion 502 and the medicine injection space 503 are connected, the medicine injection space 503 constitutes a fluid passage 504 that circulates inside the pipe 2, so that the medicine injection space 501 is rotated from the pipe 2 while the medicine input section 501 is rotating. The water to be treated that flows into 503 can flow out into the pipe 2 when the solid drug 506 is injected, and the solid drug 506 can be injected into the drug injection space 503 without requiring a large injection pressure. The diameter of the fluid passage 504 may be any diameter as long as the fluid flows out into the pipe 2 but the solid medicine 506 does not flow out into the pipe 2, and the size of the solid medicine 506 needs to be larger than the diameter of the fluid passage 504. Therefore, it is necessary to adjust the diameter of the fluid passage 504 depending on the size of the solid medicine 506 to be used.

  The solid medicine 506 is charged from the medicine injection space 503 into the water to be treated in the pipe 2 when the medicine injection section 501 rotates and the medicine injection space 503 holding the solid medicine 506 moves to the pipe side. It is configured to be added to.

  When one drug injection space 503 moves to the pipe side, the other drug injection space 503 and the drug holding unit 502 come into contact with each other, so that the solid drug 506 enters the drug injection space 503 from the drug holding unit 502 by the expansion and contraction action of the elastic body 505. Is done.

  When the solid medicine 506 is introduced into the other medicine injection space 503, the liquid treated water existing in the medicine injection space 503 is pushed out in the direction of the fluid passage 504. Pressure is transmitted to one drug injection space 503 that holds the drug 506.

  The solid medicine 506 held in one medicine injection space 503 is released into the pipe 2 by the action of the pressure of the water to be treated in the fluid passage 504.

  In this configuration, it is possible to determine the amount of medicine input during one rotation of the drug injection unit 501 by the volume of the drug injection space 503 and the number of drug injection spaces 503 existing in the drug injection unit 501.

  FIG. 5 shows a detailed structure around the drug addition adjusting unit 5 when the drug is liquid or gas, (a) shows a state where the drug holding unit 502 and the drug injection space 503 are connected, (b) Indicates a state in which the medicine holding unit 502 and the medicine injection space 503 are not connected.

  In the case where the drug is a liquid or gas non-solid drug 507, the injection of the non-solid drug 507 into the drug injection space 503 is performed when the drug injection space 503 and the drug holding unit 502 are in contact with each other as in the case of using the solid drug. Is called. When the medicine holding portion 502 and the medicine injection space 503 are connected, the medicine injection space 503 forms a fluid passage 504 that circulates with the inside of the pipe 2, so that the pipe is rotated during the injection of the non-solid medicine 507. The treated water flowing from 2 into the drug injection space 503 can flow out to the pipe 2, and then the liquid or gaseous non-solid drug 507 is in a time during which the drug holding unit 502 and the drug injection space 503 are connected. The fluid flows from the drug injection space through the fluid passage 504 and flows out to the pipe 2. When the medicine injection space 503 is not connected to the medicine holding part 502, the medicine outflow to the pipe 2 is stopped. With this configuration, the amount of the non-solid drug 507 to be charged during one rotation of the drug injection unit 501 is the volume of the drug injection space 503, the number of drug injection spaces 503 existing on the drug injection unit 501, and the drug injection space 503. It can be determined by the connection time with which the medicine holding unit 502 contacts.

  Even when the medicine is solid, liquid, or gas, the medicine holding unit 502 is configured such that the enclosed non-solid medicine 507 receives a certain pressure in the direction of the medicine injection space 503. As a means for the non-solid drug 507 to receive a constant pressure, a structure that applies a constant pressure to the non-solid drug 507 by the elastic body 505 can be raised, but if it is a means for achieving the above object, the weight of the weight is reduced. The method is not limited to this method, such as a method of applying a certain pressure to the non-solid drug 507 by using it.

  Since the medicine decreases with the operation time of the water treatment apparatus, it is necessary to replenish the medicine to the medicine holding section 502 after performing a predetermined amount of water treatment. The medicine holding section 502 replenishes the medicine from the outside. Is a possible structure.

  According to this configuration, the drug addition adjusting unit 5 includes the drug charging unit 501 that rotates according to the flow rate inside the pipe 2 and the drug holding unit 502 configured outside the pipe 2. A drug injection space 503 for holding a drug injected from the drug holding unit 502, and the drug holding unit 502 and the drug injection space 503 are temporarily connected by the rotation of the drug injection unit 501, When the chemical injection space 503 is connected, the chemical injection space 503 flows into the inside of the pipe 2 via the chemical injection portion 501, so that the rotation speed of the chemical injection portion 501 is high when the flow rate of the water to be treated is large. The number of drug injections performed with rotation increases, and when the flow rate of treated water is small, the number of rotations of the drug injection unit 501 is small, and the number of drug injections performed with rotation decreases. , It is possible to add an amount corresponding drug amount to the flow rate of the for-treatment water in the pipe 2.

  For this reason, it is possible to stably inject a certain amount of medicine into the medicine injection space without requiring a large pressure for injecting the medicine by means that does not require power control.

  The water treatment apparatus according to the present invention can be used in an optimal amount of chemicals by means that does not require power control, and thus is useful as a domestic water treatment apparatus used for purification of well water and stored water. It is.

DESCRIPTION OF SYMBOLS 1 Water treatment apparatus 2 Piping 3 Electric pump 4 Filtration apparatus 5 Drug addition adjustment part 6 Filter medium 7 Flow rate adjustment valve 8 Drug holding part 501 Drug insertion part 502 Drug holding part 503 Drug injection space 504 Fluid passage 505 Elastic body 506 Solid medicine 507 Non-solid drug

Claims (6)

In a water treatment device for removing turbid components contained in water,
An electric pump for sucking and discharging the water to be treated from the stored water;
A filtration device enclosing a filter medium, a drug holding part,
A chemical addition adjusting unit for introducing the chemical into the water to be treated,
The said chemical | medical agent addition adjustment part is a water treatment apparatus which throws a chemical | medical agent into to-be-processed water according to the flow volume of the to-be-processed water. The drug addition adjustment unit has a drug injection unit that rotates according to the flow rate inside the pipe,
The drug injection unit has a plurality of drug injection spaces for temporarily holding a drug injected from the drug holding unit,
Are connected by a fluid passage through which liquid flows through the plurality of drug injection spaces;
The water treatment device according to claim 1, wherein when the drug holding part and the drug injection space are temporarily connected by rotation of the drug injection part, the drug injection space causes liquid to flow through the pipe. The water treatment apparatus of Claim 1 or 2 whose chemical | medical agent thrown into to-be-processed water is a solid chemical | medical agent. The water treatment apparatus according to claim 1 or 2, wherein the chemical to be introduced into the water to be treated is a liquid chemical. The water treatment apparatus of Claim 1 or 2 whose chemical | medical agent thrown into to-be-processed water is a gaseous chemical | medical agent. The water treatment apparatus according to any one of claims 2 to 5, wherein the medicine charging portion has a turbine shape.