WO2005047193A1 - Apparatus for discharging chemicals in proportion to water flow - Google Patents
Apparatus for discharging chemicals in proportion to water flow Download PDFInfo
- Publication number
- WO2005047193A1 WO2005047193A1 PCT/KR2004/002928 KR2004002928W WO2005047193A1 WO 2005047193 A1 WO2005047193 A1 WO 2005047193A1 KR 2004002928 W KR2004002928 W KR 2004002928W WO 2005047193 A1 WO2005047193 A1 WO 2005047193A1
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- chemical
- foam
- tank
- entrance
- generation tank
- Prior art date
Links
Classifications
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F1/00—Treatment of water, waste water, or sewage
- C02F1/50—Treatment of water, waste water, or sewage by addition or application of a germicide or by oligodynamic treatment
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F1/00—Treatment of water, waste water, or sewage
- C02F1/68—Treatment of water, waste water, or sewage by addition of specified substances, e.g. trace elements, for ameliorating potable water
- C02F1/685—Devices for dosing the additives
- C02F1/686—Devices for dosing liquid additives
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F1/00—Treatment of water, waste water, or sewage
- C02F1/72—Treatment of water, waste water, or sewage by oxidation
- C02F1/76—Treatment of water, waste water, or sewage by oxidation with halogens or compounds of halogens
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F2209/00—Controlling or monitoring parameters in water treatment
- C02F2209/40—Liquid flow rate
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F2209/00—Controlling or monitoring parameters in water treatment
- C02F2209/42—Liquid level
Definitions
- foams are generated in the chemical solution, and are fed into the water pipe, so that it is possible to feed by a very small amount of chemical.
- a pressure at an entrance of one end of the chemical liquid input pipe connected with the water pipe gets lower than the pressure at the entrance of the other end of the chemical liquid input pipe connected with the foam generator (Bernoullis theorem). Namely, a certain pressure difference occurs between both ends of the chemical liquid input pipe, so that the chemical foams generated by the foam generator based on the pressure difference are sucked into the chemical liquid input pipe and are inputted into the water pipe. Therefore, the apparatus for discharging chemicals in proportion to water flow according to the present invention operates without an external supply of driving force.
- the foam generator includes a foam generation tank that is a sealed container and stores chemical solution and gas therein; and a gas inlet pipe of which an entrance of one end is connected with an outer portion of the foam generation tank, and an entrance of the other end is positioned within the chemical solution stored in the foam generation tank so that gas is inputted from the outside of the foam generation tank and is mixed with the chemical solution stored in the foam generation tank, wherein the other end of the chemical liquid input pipe is connected with the foam generation tank in such a manner that the entrance of the other end is distanced from a liquid surface of the chemical solution stored in the foam generation tank and is positioned within the gas stored in the foam generation tank.
- Figure 1 is a cross sectional view illustrating an apparatus for discharging chemicals in proportion to water flow according to a first embodiment of the present invention
- Figure 2 is a cross sectional view illustrating an apparatus for discharging chemicals in proportion to water flow according to a second embodiment of the present invention
- Figure 3 is a cross sectional view illustrating an apparatus for discharging chemicals in proportion to water flow according to a third embodiment of the present invention
- Figure 4 is a cross sectional view illustrating the construction that an apparatus for discharging chemicals in proportion to water flow is installed at a chemical tank according to a preferred embodiment of the present invention
- Figure 5 is a cross sectional view illustrating an apparatus for discharging chemicals in proportion to water flow of Figure 4 according to the present invention
- Figure 6 is a disassembled perspective view of an example of a liquid level maintaining valve of Figure 5
- Figure 7 is a cross sectional view of an example of a connection of an apparatus for discharging chemicals in proportion to water
- the thusly generated deposit may be attached to the seat surface 71 b of the valve body 71 and the outer surface of the opening and closing port 73 and disturbing the sealing between the seat surface 71c and the opening and closing port 73, so that it is impossible to achieve an accurate operation of the liquid level maintaining valve 70.
- the seat surface 71 b of the valve body 71 and the outer surface of the opening and closing port 73 are formed of ceramic or zirconia material.
- the chemical tank 90 is a sealed tank having a gas inlet pipe path 91 through which gas is inputted from the outside.
- the filtering net 61 preferably has a wider surface area, so that the foreign substances can be effectively filtered by the surfaces of the filtering net 61 for thereby preventing the blocking of the chemical liquid input pipe path 60.
- a chemical dissolving unit 80 in the chemical tank 90 wherein solid chemical stored in the interior of the chemical tank 90 is dissolved in the chemical solution 97 stored in the chemical tank 90.
- the apparatus for discharging chemicals in proportion to water flow according to an embodiment of the present invention is connected with the water pipe by various methods.
- Figure 7 is a cross sectional view illustrating a connection of an apparatus for discharging chemicals in proportion to water flow, a water pipe and a water tank according to an embodiment of the present invention.
- the chemical can be fed in proportion to the flux of water supplied from a water collection source to the water tank. Therefore, with the above-described advantages and effects, the apparatus for discharging chemicals in proportion to water flow according to the present invention can be well adapted to a water supply system that needs an operation that the feeding amount of chemical can be adjusted within a range of a very small amount.
Landscapes
- Chemical & Material Sciences (AREA)
- Life Sciences & Earth Sciences (AREA)
- Hydrology & Water Resources (AREA)
- Engineering & Computer Science (AREA)
- Environmental & Geological Engineering (AREA)
- Water Supply & Treatment (AREA)
- Organic Chemistry (AREA)
- Health & Medical Sciences (AREA)
- Medicinal Chemistry (AREA)
- Accessories For Mixers (AREA)
Abstract
The apparatus for discharging chemicals in proportion to water flow is disclosed. The apparatus for discharging chemicals in proportion to water flow comprises a foam generator that mixes chemical solution and gas for thereby generating chemical foams; and a chemical liquid input pipe that is designed to suck the chemical foams generated by the foam generator based on a pressure difference generated due to a flow of water flowing in a water pipe between both ends of the same and to feed the chemical foams into the water pipe, wherein one end of the chemical liquid input pipe is connected with a portion of the water pipe, and the other end of the same is connected with the foam generator.
Description
APPARATUS FOR DISCHARGING CHEMICALS IN PROPORTION TO WATER FLOW
Technical Field The present invention relates to an apparatus for discharging chemicals in proportion to water flow, and in particular to an improved apparatus for discharging chemicals in proportion to water flow that is operated based on the flow of water fed into a water tank through a water supply pipe, wherein chemical is fed in proportion to the flux of water inputted into a water tank, and a feeding amount of chemical is controlled within a range of a very small amount.
Background Art In a remote mountain village or an island village where does not have any water treatment facility, water collected from a certain water intake source such as a water intake well or a water pipe well is stored in a certain water storing facility such as a water tank distanced from a water intake source. However, since the thusly collected water has bacteria such as a colon bacillus and various microorganisms, the water is not drinkable. The water stored in the water tank is disinfected by inputting a chemical having chlorine components like Ca(OCI)2 into the water and is supplied as drinkable water. Generally, the chemical is automatically and periodically fed using a certain apparatus capable of feeding the chemical. However, since the apparatus capable of feeding chemical at a certain time interval is designed to feed chemical irrespective of the amount of water stored in the water tank, it is impossible to control the feeding amount of chemical. The above-described apparatus is designed to operate based on a driving force supply like an electric power, etc. The water tank has been installed at a hilly area in which a certain pressure level is needed for supplying
water wherein the hilly area is distanced from a village. In the case that the above-described conventional chemical feeding apparatus is used, a facility investment is additional needed for a driving force supply like an electric power. In order to overcome the above problems, the Korean utility model Nos. 20-0293325 and 20-0300269 disclose a chemical feeder with no power supply that is capable of generating driving force using the water flowing in a water supply pipe and feeding chemical using the generated driving force. In particular, in the above chemical feeder, the chemical is fed at a constant ratio in accordance with the flux of water supplied to a water tank because the revolution of the chemical feeder is changed based on the flux of water. The above chemical feeder with no power supply includes a rotation assembly that is rotated based on the flow of water in order to generate driving force, a driving force transfer apparatus designed to decrease the rotation of the rotation assembly for thereby feeding chemical, an apparatus for receiving the driving force and feeding the chemical, and many elements for controlling the above-described elements. However, the above-described conventional apparatus are very complicated in their constructions, and the fabrications and installations of the same are very difficult.
Disclosure of Invention Technical object Accordingly, it is an object of the present invention to overcome the problems encountered in the conventional art. It is another object of the present invention to provide an apparatus for discharging chemicals in proportion to water flow that can be operated without an external supply of driving force in such a manner that energy obtained based on the flow of water supplied to a water tank is adapted. It is further another object of the present invention to provide an apparatus for discharging chemicals in proportion to water flow capable of feeding chemical at a certain ratio based on the flux of water. It is still further another object of the present invention to provide an
apparatus for discharging chemicals in proportion to water flow capable of achieving an easier control of input amount of chemical in such a manner that chemical is fed within a range of a very small amount. Technical solution To achieve the above objects, in an apparatus for discharging chemicals in proportion to water flow that is designed to feed chemical into water supplied from a certain water collection source to a water tank through a water pipe, there is provided an improved apparatus for discharging chemicals in proportion to water flow that comprises a foam generator that mixes chemical solution and gas for thereby generating chemical foams; and a chemical liquid input pipe that is designed to suck the chemical foams generated by the foam generator based on a pressure difference generated due to a flow of water flowing in a water pipe between both ends of the same and to feed the chemical foams into the water pipe, wherein one end of the chemical liquid input pipe is connected with a portion of the water pipe, and the other end of the same is connected with the foam generator. In the apparatus for discharging chemicals in proportion to water flow having the above construction, chemical foams generated by the foam generator are sucked by the chemical liquid input pipe and are fed into the water pipe, so that the chemical is inputted into the water pipe. In particular, in the apparatus for discharging chemicals in proportion to water flow according to the present invention, chemical foams are generated in the chemical solution and are inputted into the water pipe, so that it is possible to input the chemical foams with a very small amount. Therefore, a very small amount control is achieved with respect to the feeding amount of chemical. Namely, in the case that chemical solution is directly fed into the water pipe, chemical is fed by large amount. In the present invention, foams are generated in the chemical solution, and are fed into the water pipe, so that it is possible to feed by a very small amount of chemical. In addition, when water flows through the water pipe, a pressure at an entrance of one end of the chemical liquid input pipe connected with the water pipe gets lower than the pressure at the entrance of the other
end of the chemical liquid input pipe connected with the foam generator (Bernoullis theorem). Namely, a certain pressure difference occurs between both ends of the chemical liquid input pipe, so that the chemical foams generated by the foam generator based on the pressure difference are sucked into the chemical liquid input pipe and are inputted into the water pipe. Therefore, the apparatus for discharging chemicals in proportion to water flow according to the present invention operates without an external supply of driving force. Furthermore, the pressure difference between both ends of the chemical liquid input pipe is increased as the speed of flow of water in the water pipe is increased, so that the amount of chemical inputted into the water pipe through the chemical liquid input pipe is increased. Namely, in the present invention, the feeding amount of chemical is increased or decreased based on the flux (= cross section area of water pipe x flow speed of water) of water supplied to the water tank through the water pipe. In the apparatus for discharging chemicals in proportion to water flow according to the present invention, the foam generator is a pipe having a gas inlet port at both ends of the same, wherein an entrance of one end of the pipe is connected with an entrance of the other end of the chemical liquid input pipe, and an entrance of the other end of the pipe is positioned within chemical solution stored in a certain container, and the gas inlet port is positioned within the gas above the liquid surface of the chemical solution stored in the container. The above-described foam generator may be simply installed at a pipe extended from the other end of the chemical liquid input pipe. In particular, the foam generator is connected with the chemical liquid input pipe, so that the chemical solution and gas are inputted into the foam generator by a suction force generated at the chemical liquid input pipe. Namely, the chemical foams are generated using the foam generator without an external supply of driving force. In addition, the amount of gas sucked into the chemical solution can be adjusted by changing the size of the gas inlet port. As a result, the amount of chemical inputted into the water pipe is adjusted. In the apparatus for discharging chemicals in proportion to water flow
according to the present invention, the foam generator includes a foam generation tank that is a sealed container and stores chemical solution and gas therein; and a gas inlet pipe that is a pipe shape and has a chemical liquid inlet port between both ends of the same, wherein one end of the pipe is connected with an outer portion of the foam generation tank for thereby receiving gas from the outside of the foam generation tank through the entrance of the same, and the chemical liquid inlet port is positioned within the chemical solution stored in the foam generation tank, and the entrance of the other end of the pipe is positioned within gas stored in the foam generation tank, wherein the other end of the chemical liquid input pipe is connected with the foam generation tank in such a manner that the entrance of the other end is distanced from a liquid surface of the chemical solution stored in the foam generation tank and is positioned within the gas stored in the foam generation tank. When water flows in the water pipe, the pressure of the interior of the foam generator connected with the chemical liquid input pipe drops, and the gas is inputted from the outside of the foam generation tank to the gas inlet pipe. Since the chemical liquid inlet port is positioned at a lower side of the liquid surface of the chemical solution, the chemical solution is inputted into the gas inlet pipe based on a pressure difference between the gas inlet pipe and the interior of the liquid and is mixed with the gas inputted into the gas inlet pipe. Chemical foams are discharged from the entrance of the other end of the gas inlet pipe positioned within the gas stored in the gas generation tank. In addition, the gas and chemical solution are inputted into the gas inlet pipe without an external supply of driving force by the flow of water in the water pipe and the foams are generated in the same method. The amount of the chemical solution inputted into the gas inlet pipe and mixed with the gas is increased as the size of the chemical solution inlet port is increased. Therefore, the amount of chemical inputted into the water pipe can be adjusted by adjusting the size of the chemical liquid inlet port. In the apparatus for discharging chemicals in proportion to water flow according to the present invention, the foam generator includes a foam
generation tank that is a sealed container and stores chemical solution and gas therein; and a gas inlet pipe of which an entrance of one end is connected with an outer portion of the foam generation tank, and an entrance of the other end is positioned within the chemical solution stored in the foam generation tank so that gas is inputted from the outside of the foam generation tank and is mixed with the chemical solution stored in the foam generation tank, wherein the other end of the chemical liquid input pipe is connected with the foam generation tank in such a manner that the entrance of the other end is distanced from a liquid surface of the chemical solution stored in the foam generation tank and is positioned within the gas stored in the foam generation tank. When water flows in the water pipe, the pressure of the interior of the foam generation tank connected with the chemical liquid input pipe drops. Gas is inputted into the foam generation tank through the gas inlet pipe and is discharged into the chemical solution and is mixed with the chemical solution, so that the chemical foams are generated in the foam generation tank. The inputs of the gas and chemical solution into the gas inlet pipe are performed by the flow of the water in the water pipe without an external supply of driving force. The amount of the chemical foams is increased as the entrance of the other end of the gas inlet pipe positioned in the chemical solution gets deeper from the liquid surface of the chemical solution. The amount of the chemical foams sucked into the chemical liquid input pipe is increased as the distance between the entrance of the other end of the chemical liquid input pipe and the liquid surface of the chemical solution is decreased. Therefore, the amount of the chemical fed into the gas inlet pipe can be adjusted by adjusting the depth of the entrance of the other end of the gas inlet pipe from the liquid surface of the chemical solution and the distance between the liquid surface of the chemical solution and the entrance of the other end of the chemical liquid input pipe. In the apparatus for discharging chemicals in proportion to water flow according to the present invention, the foam generator further includes a foam guide container that is formed in a container shape and has a chemical liquid flow path of which at least one end is opened, and is installed in the interior of
the foam generation tank in such a manner that the opened end is positioned within the gas stored in the foam generator on a liquid surface of the chemical solution stored in the foam generation tank, and the other end and the chemical liquid flow path are positioned within the chemical solution stored in the foam generation tank, wherein the other end of the chemical liquid input pipe is connected with the foam generation tank in such a manner that the entrance of the same is opposite to the opened entrance of the foam guide container at the upper side of the foam guide container. The foam guide container is designed to guide chemical foams into the direction of the entrance of the chemical liquid input pipe. In the apparatus for discharging chemicals in proportion to water flow according to the present invention, the foam generator further includes a chemical liquid inlet pipe path that connects the interior of the chemical tank and the interior of the foam generation tank so that the chemical solution stored in a certain chemical tank is inputted into the interior of the foam generation tank; and a liquid level maintaining valve that is installed at the chemical liquid inlet pipe path for thereby maintaining a liquid level of the chemical solution stored in the foam generation tank uniform. When the chemical is inputted, and the amount of chemical solution of the foam generation tank is decreased, the chemical solution is inputted into the foam generation tank from the chemical tank through the chemical liquid inlet pipe path, so that the chemical solution is supplemented. The amount of the chemical inputted into the chemical liquid input pipe is determined based on the distance between the liquid surface of the chemical solution stored in the foam generation tank and the entrance of the other end of the chemical liquid input pipe. Therefore, it is possible to adjust the distance by maintaining the liquid level of the chemical liquid stored in the foam generation tank uniform. In the apparatus for discharging chemicals in proportion to water flow according to the present invention, the liquid level maintaining valve includes a valve body that includes a through hole having a downwardly formed entrance, and a circular seat surface formed at an edge portion of the downward entrance
and is connected with an entrance of the chemical liquid inlet pipe path, wherein a guide has a diameter larger than the diameter of the seat surface and is positioned at a circumferential surface concentric with the seat surface, and the guide is formed in a downward direction from a surrounding portion of the entrance in which the seat surface is formed, and the other entrance of the through hole is connected with an interior of the foam generation tank; an opening and closing member that is a spherical member having a certain diameter larger than the diameter of the seat surface and enough to be received in a space formed by a plurality of guides and is guided by the guides at a lower side of the sear surface and is moved up and down and is received in a space formed by the guides; and a valve opening and closing float that is a certain float floated on the chemical solution and is guided by the guides at a lower side of the opening and closing member and is installed in a space formed by the guides so that the valve opening and closing float is moved up and down. In the liquid level maintaining valve, when the liquid level of the chemical liquid in the foam generation tank is below a certain liquid level, the opening and closing member connected with the valve opening and closing float descends and is opened. When the liquid level reaches a certain liquid level, the valve opening and closing float and the opening and closing member rise, so that an outer surface of the opening and closing member contacts with the seat surface and is closed. In particular, the opening and closing operations of the liquid level maintaining valve are achieved without an external supply of driving force. In the apparatus for discharging chemicals in proportion to water flow according to the present invention, the seat surface of the valve body and an outer surface of the opening and closing member are formed of ceramic or zirconia material. Generally, chemical having Ca(OCI)2 is dissolved in chemical solution. Therefore, chemical deposit may be attached on a seat surface of the valve body and an outer surface of the opening and closing port for thereby decreasing an accuracy of the liquid level maintaining level. However, the above
O 2005/047193
chemical deposit is not attached to the surface of ceramic or zirconia material. Therefore, the above-described liquid level maintaining valve is properly and accurately operated without any error. In the apparatus for discharging chemicals in proportion to water flow according to the present invention, the foam generator is floated on the chemical solution stored in the chemical tank so that an entrance of the chemical liquid inlet pipe path connected with an interior of the chemical tank is positioned at a lower side of the liquid surface of the chemical solution stored in the chemical tank. The foam generation tank is positioned outside the chemical tank and is connected with the chemical tank through the chemical liquid inlet pipe path. In the present invention, the foam generator- having a foam generation tank is floated on the chemical solution stored in the chemical tank, so that it is possible to easily connect with the interior of the chemical tank using the chemical liquid inlet pipe path. In the apparatus for discharging chemicals in proportion to water flow according to the present invention, the foam generator further includes a filtering net installed at an entrance of the chemical liquid inlet pipe path connected with an interior of the chemical tank. When foreign substances are inputted into the foam generation tank, the liquid level maintaining valve and foam generator may not be properly operated. The filtering net is basically designed to prevent the foreign substances from being inputted into the foam generation tank.
Advantageous effects As described above, in the apparatus for discharging chemicals in proportion to water flow according to the present invention, since chemical foams are inputted into the water pipe based on a pressure difference generated due to the flow of water supplied to the water tank between both ends of the chemical liquid input pipe, the apparatus for discharging chemicals in proportion to water flow according to the present invention operates without
an external supply of driving force. Furthermore, the foam generator capable of generating chemical foams is operated based on a suction force of the chemical liquid input pipe. In the apparatus for discharging chemicals in proportion to water flow according to the present invention, since the pressure difference between both ends of the chemical liquid input pipe is changed based on the flow speed of water flowing through the water pipe, the chemical is fed at a constant rate based on the flux of the water supplied into the water tank. In the apparatus for discharging chemicals in proportion to water flow according to the present invention, since chemical forms are generated and fed, a very small amount of chemical can be fed. It is possible to control the feeding amount of chemical within a range of a very small amount.
Brief Description of Drawings The preferred embodiments of the present invention will be described with reference to the accompanying drawings. Figure 1 is a cross sectional view illustrating an apparatus for discharging chemicals in proportion to water flow according to a first embodiment of the present invention; Figure 2 is a cross sectional view illustrating an apparatus for discharging chemicals in proportion to water flow according to a second embodiment of the present invention; Figure 3 is a cross sectional view illustrating an apparatus for discharging chemicals in proportion to water flow according to a third embodiment of the present invention; Figure 4 is a cross sectional view illustrating the construction that an apparatus for discharging chemicals in proportion to water flow is installed at a chemical tank according to a preferred embodiment of the present invention; Figure 5 is a cross sectional view illustrating an apparatus for discharging chemicals in proportion to water flow of Figure 4 according to the present invention;
Figure 6 is a disassembled perspective view of an example of a liquid level maintaining valve of Figure 5; and Figure 7 is a cross sectional view of an example of a connection of an apparatus for discharging chemicals in proportion to water flow, a water pipe, and a water tank according to a preferred embodiment of the present invention.
Best Mode for Carrying Out the Invention The apparatus for discharging chemicals in proportion to water flow according to the present invention will be described with reference to the accompanying drawings. Figure 1 is a cross sectional view illustrating an apparatus for discharging chemicals in proportion to water flow according to a first embodiment of the present invention. As shown therein, the apparatus for discharging chemicals in proportion to water flow according to a first embodiment of the present invention is designed to feed chemical into water supplied from a certain water collection source to a water tank 2 through a water tank 1 and includes a chemical liquid input pipe 10 and a foam generator 20. The chemical liquid input pipe 10 is designed to suck a chemical foam 29 generated by the foam generator 20 and to input into the water pipe 1. One end of the chemical liquid input pipe 10 is connected with a certain portion of the water pipe 1 , and the other end of the same is connected with the foam generator 20. When water flows through the water pipe 1 , a certain pressure difference occurs between both ends of the thusly connected chemical liquid input pipe 10. Since a flow speed is high in the water pipe 1 due to the flow of water, the pressure of one end of the chemical liquid input pipe 10 connected with the water pipe 1 drops based on the Bernoullis theorem and is lower than the pressure of the other end of the chemical liquid input pipe 10 connected with the foam generator 20. The chemical foam 29 is sucked through the entrance of the other end of the chemical liquid input pipe 10 based on the above pressure difference. In particular, as the flow speed of water flowing in the interior of the
water pipe 1 is increased, since the pressure difference is increased, the amount of the chemical that is sucked by the foam generator 20 and inputted into the water pipe 1 is changed based on the flux (=cross sectional area of the water pipe x flow speed of water) of water supplied to the water tank 2 through the water pipe 1. The foam generator 20 is designed to mix a chemical solution 27 stored in a certain tank (not shown) and a gas 28 positioned at an upper side of the chemical solution 27 for thereby generating the chemical foam 29. As shown in the drawings, the foam generator 20 according to the first embodiment of the present invention includes a gas inlet 21 at both ends of the same. The pipe- shaped foam generator 20 is configured in such a manner that the entrance of one end is connected with the entrance of the other end of the same, and the entrance of the other end is positioned in the interior of the chemical solution 27 in the tank. In addition, the gas inlet 21 is connected with the other end of the chemical liquid input pipe 10, namely, the lower side of the chemical liquid input pipe 10, so that it is positioned within the gas 28 above the liquid level of the chemical solution 27 in the tank. The foam generator 20 is formed in a pipe shape, separately from the chemical liquid input pipe 10 for thereby being connected with the chemical liquid input pipe 10. In addition, the foam generator 20 is integrally connected with the other end of the chemical liquid input pipe 10. As shown in Figure 1 , the foam generator 20 is formed in a pipe shape and is connected with the chemical liquid input pipe 10. The pipe-shaped foam generator 20 is floated on the chemical solution 27 by a float 23. The amount of the gas 28 inputted into the pipe of the foam generator 20 is dependent on the size of the gas inlet 21. Namely, it is possible to adjust the amount of the chemical fed into the water pipe 1 by adjusting the size of the gas inlet 21. A Venturi-tube may be formed or installed at a certain portion of the water pipe connected with one end of the chemical liquid input pipe 10 in order to increase the flow speed of water. The above-described construction may be adapted to the following all embodiments of the present invention. The chemical liquid input pipe 10 connected with the water pipe 1 is
preferably installed so that an entrance 10a of one end of the same is installed in the flow direction of water. So, it is possible to maximize the pressure difference occurring due to the flow of water between the entrances of both ends of the chemical liquid input pipe 10. The above-described construction may be adapted to the following all embodiments of the present invention. Figure 2 is a cross sectional view illustrating an apparatus for discharging chemicals in proportion to water flow according to a second embodiment of the present invention. The apparatus for discharging chemicals in proportion to water flow according to the second embodiment of the present invention is basically directed to feeding chemical into water supplied from a certain water collection source to a water tank 2 like the first embodiment of the present invention and includes a chemical liquid input pipe 10 and a foam generator 30. Therefore, the descriptions of the same elements as the first embodiment of the present invention will be omitted. Only the different elements as compared with the first embodiment of the present invention will be described. The foam generator 30 includes a foam generation tank 31 and a gas inlet pipe 33. The foam generation tank 31 is a sealed tank and includes a chemical solution 37 and a gas 38 therein. The chemical foam 39 is generated in the interior of the foam generation tank 31 and is sucked into the chemical input pipe 10. The gas inlet pipe 33 is designed to receive gas from the outside of the foam generation tank 31 and to mix with a chemical solution 37 of the foam generation tank 31. As shown in Figure 2, the gas inlet pipe 33 is formed in a pipe shape in which a chemical liquid inlet 34 is formed between both ends of the same. One end of the pipe-shaped gas inlet pipe 33 is connected with an outer side of the foam generation tank 31 so that gas of the outside of the foam generation tank 31 is inputted through the entrance. In addition, the chemical liquid inlet 34 is positioned within the chemical solution 37 so that the chemical
solution 37 of the foam generation tank 31 is inputted into the interior of the gas inlet pipe 33. The foam solution 37 inputted into the interior of the gas inlet pipe 33 through the chemical solution inlet 34 is mixed with the gas inputted into the gas inlet pipe 33 from the outside of the foam generation tank 31 for thereby generating the chemical form 38. In addition, the entrance of the other end of the pipe-shaped gas inlet pipe 33 is positioned within the gas 38 of the foam generation tank 31 on a liquid surface 37a of the chemical solution 37 of the foam generation tank 31 so that the chemical foam 38 is discharged in the direction of the gas 38 of the foam generation tank 31. As the size of the chemical liquid inlet 34 is increased, the amount of the chemical solution 37 inputted into the gas inlet pipe 33 is increased. As a result, the generation amount of the chemical foam 38 is increased. Therefore, it is possible to adjust the amount of chemical fed into the water pipe 1 by adjusting the size of the chemical liquid inlet 34. The chemical liquid input pipe 10 is connected with the foam generation tank 31 so that the entrance of the other end of the same is positioned within the gas 38 of the foam generation tank 31 at a certain distance from the liquid surface 37a of the chemical solution 37 of the foam generation tank 31 for thereby sucking the chemical foam 39 generated in the foam generation tank 31. When a distance d1 between the entrance of the other end of the chemical liquid inlet 10 and the liquid surface 37a of the chemical solution 37 is decreased, the amount of the chemical foam 39 sucked into the chemical liquid input pipe 10 is increased. As a result, it is possible to adjust the amount of the chemical fed into the water pipe 1 by adjusting the distance d1. Figure 3 is a cross sectional view illustrating an apparatus for discharging chemicals in proportion to water flow according to a third embodiment of the present invention. The descriptions of the elements same as the first and second embodiments of the present invention will be omitted like the second embodiment of the present invention. Only the different elements as compared to the first and second embodiments of the present invention will be described.
A foam generator 40 includes a foam generation tank 41 and a gas inlet pipe 43. The foam generation tank 41 is a sealed tank and includes a chemical solution 47 and a gas 48 therein. The chemical foam 49 is generated in the foam generation tank 41 and is sucked into the chemical liquid input pipe 10. The gas inlet pipe 43 receives gas from the outside of the foam generation tank 41 and mixes with the chemical solution 47 of the foam generation tank 41. As shown in the drawings, the entrance of one end of the gas inlet pipe 43 is connected with an outer side of the foam generation tank 41 , and the entrance of the other end of the same is positioned within the chemical solution 47. The gas of the outside of the foam generation tank 41 is inputted through the gas inlet pipe 43 and is inputted into the chemical solution 47 and is mixed therein for thereby generating the chemical foam 49. The amount of the chemical foam is increased as the entrance of the other end of the gas inlet pipe 43 is getting deeper and deeper from the liquid surface 47a of the chemical solution 47. Therefore, it is possible to adjust the amount of chemical fed into the water pipe 1 by adjusting the depth d2 of the entrance of the other end of the gas inlet pipe 43 with respect to the liquid surface 47a of the chemical solution 47. The chemical liquid input pipe 10 is connected with the foam generation tank 41 so that the entrance of the other end is positioned within the gas of the foam generation tank 41 at a distance d3 from the liquid surface 47a of the chemical solution 47 of the foam generation tank 41 for thereby sucking the chemical foam 49 generated in the foam generation tank 41. When the distance d3 between the entrance of the other end of the chemical liquid input pipe 10 and the liquid surface 47a of the chemical solution 47 is decreased, the amount of the chemical foam 49 sucked into the chemical liquid input pipe 10 is increased. As a result, it is possible to adjust the amount of chemical fed into the water pipe 1 by adjusting the distance d3 between the liquid surface 47a of the chemical solution 47 and the entrance of the other end of the chemical liquid input pipe 10.
Figure 4 is a cross sectional view of a connection between an apparatus for discharging chemicals in proportion to water flow and a certain chemical tank according to a preferred embodiment of the present invention.
Figure 5 is a cross sectional view illustrating an apparatus for discharging chemicals in proportion to water flow of Figure 4. As shown therein, in the third embodiment of the present invention, the apparatus for discharging chemicals in proportion to water flow according to the present invention is connected with the chemical tank 90. The above-described construction is not limited thereto. It may be adapted to the first and second embodiments of the present invention. In the following, the third embodiment of the present invention will be described as a representative embodiment of the present invention for easier understanding of the present invention. As shown in the drawings, in a preferred embodiment of the present invention, the apparatus for discharging chemicals in proportion to water flow further includes a foam guide container 50. The foam guide container 50 is designed to guide the chemical foam 49 generated in the interior of the foam generation tank 41 in the direction of the entrance of the other end of the chemical liquid input pipe 10 wherein one end of the same is opened (the other end of the same may be opened). The foam guide container 50 is formed in a container shape and includes a chemical liquid flow path 51 at a certain portion of the same. The foam guide container 50 is positioned within the gas of the foam generation tank 41 wherein the opened one end of the same is positioned on the liquid surface of the chemical solution 47 stored in the foam generation tank 41, and the other end of the same and the chemical liquid flow path 51 are positioned within the chemical solution 47 of the foam generation tank. The entrance of the other end of the gas inlet pipe 43 is positioned in the interior of the foam guide container 50 so that the chemical foam 49 is generated in the interior of the foam guide container 50 and is guided in a certain direction. In addition, the other end of the chemical liquid input pipe 10 is
positioned at the upper side of the foam guide container 50, opposing to the opened entrance of the foam guide container 50 for thereby effectively sucking the chemical foam 49 guided by the foam guide container 50. As shown in the drawings, the apparatus for discharging chemicals in proportion to water flow according to a preferred embodiment of the present invention further includes a chemical liquid input pipe path 60 communicating with the interior of the chemical tank 90 and the interior of the foam generation tank 41 so that the chemical liquid 97 stored in the chemical tank 90 is sucked into the interior of the foam generation tank 41 in the foam generator 40. Therefore, the chemical liquid decreased due to the further input of the chemical liquid is fed into the foam generation tank 41 from the chemical tank 90. In the apparatus for discharging chemicals in proportion to water flow according to a third embodiment of the present invention, the liquid pressure maintaining valve 70 opened and closed in order to keep the liquid level of the chemical liquid stored in the foam generation tank 41 constant is installed at the chemical liquid input pipe path 60. The distance between the liquid surface of the chemical solution 47 stored in the foam generation tank 41 and the entrance of the other end of the chemical liquid input pipe 40 largely affects the feeding amount of chemical into the water pipe 1. It is possible to adjust the feeding amount of chemical by adjusting the above distance. Therefore, it is preferred to keep the liquid surface of the chemical solution 47 uniform. The above construction can be achieved by installing the liquid level maintaining valve 70 at the chemical liquid input pipe path 60. Figure 6 is a disassembled perspective view of the liquid level maintaining valve of Figure 5. As shown therein, the liquid level maintaining valve 70 includes a valve body 71 , an opening and closing port 73, and a valve opening and closing float 75. A through hole 71a having a downward direction entrance. A circular
seat surface 71b is formed at an edge portion of the downward direction entrance. A guide 71c has a diameter larger than the diameter of the seat surface 71b and is extended in a downward direction at a surrounding portion of the entrance having the seat surface 71b so that the guide 71c is positioned at a circumferential surface concentric with respect to the seat surface 71b. The entrance of the through hole 71a positioned at a portion opposite to the portion of the sear surface 71b is connected with the entrance of the end of the chemical liquid input pipe path 60 connected with the interior of the foam generation tank 41 , so that the through hole 71a is communicated with the chemical liquid input pipe path 60. The guide 71c is designed to guide the opening and closing port 73 and the valve opening and closing float 75 to move up and down. In the drawings, there is provided the guide 74 formed of four rods. The above construction is not limited thereto in the present invention. The opening and closing port 73 has a diameter larger than the diameter of the seat surface 71 b. The opening and closing port 73 is a spherical member having a certain diameter enough to be inserted into a space formed by a plurality of the guides 71c and is installed in the space formed by the guides 71c in such a manner that it is guided by the guide 71c at a lower side of the sear surface 71b and is movable up and down. Here, the opening and closing port 73 preferably has a diameter same as the diameter of the circumferential surface connecting the inner edge portions of the guide 71c so that it is not moved in the horizontal direction when contacting with the inner edge portion of the guide 71c. The opening and closing port 73 is moved in a direction that an outer surface of the same contacts with the sear surface 71b of the valve body 71 when the valve opening and closing float 75 rises and pushes the opening and closing port 73 in the upward direction. When the valve opening and closing float 75 descends and drops from the opening and closing port 73, it is moved in a direction that the outer surface gets distanced from the sear surface 71b of the valve body 72 by the weight and the pressure of the chemical liquid input pipe path 60. The valve opening and closing float 75 is a certain float that is floated
on the chemical liquid and is installed in the space formed by the guides 71c in such a manner that it is guided by the guide 71c and is moved up and down. The valve opening and closing float 75 is moved up and down based on the ascending and descending movements of the liquid level of the chemical solution 47 by receiving the buoyancy and weight of the chemical solution 47 of the foam generation tank 41. The Ca(OCI)2 solution that has been generally used generates deposit. The thusly generated deposit may be attached to the seat surface 71 b of the valve body 71 and the outer surface of the opening and closing port 73 and disturbing the sealing between the seat surface 71c and the opening and closing port 73, so that it is impossible to achieve an accurate operation of the liquid level maintaining valve 70. In order to overcome the above problems, in the apparatus for discharging chemicals in proportion to water flow according to an embodiment of the present invention, the seat surface 71 b of the valve body 71 and the outer surface of the opening and closing port 73 are formed of ceramic or zirconia material. As shown in the drawings, the chemical tank 90 is a sealed tank having a gas inlet pipe path 91 through which gas is inputted from the outside. In particular, a one-way valve 92 is installed at the gas inlet pipe path 91 wherein the one-way valve 92 is opened in a direction that the gas is inputted from the outside of the chemical tank 90 to the interior of the same. Therefore, the gas having gaseous chemical stored in the chemical tank 90 is not discharged to the outside of the chemical tank 90. The foam generator 40 is installed in such a manner that the chemical tank 90 and the foam generation tank 40 are connected by the chemical liquid input pipe path 60 so that the chemical liquid is inputted into the interior of the foam generation tank 41. At this time, the foam generator 40 is positioned outside the chemical tank 90 and is connected with the chemical tank 90 through the chemical liquid input pipe path 60 (not shown in the drawings). The apparatus for discharging chemicals in proportion to water flow according to an
embodiment of the present invention may be installed in such a manner that the foam generator 40 is floated on the chemical solution stored in the interior of the chemical tank 90. Here, the foam generator 40 is installed in the interior of the chemical tank 90 in such a manner that the entrance connected with the interior of the chemical tank 90 of the chemical liquid input pipe path 60 is positioned at the lower side of the liquid surface 97a of the chemical solution 97 stored in the chemical tank 90 and is floated on the chemical solution 97 stored in the chemical tank 90. At this time, the entrance of the chemical liquid input pipe path 60 connected with the interior of the chemical tank 90 is positioned at a lower side of the liquid surface 97a of the chemical solution 97 stored in the chemical tank 90. Therefore, the apparatus for discharging chemicals in proportion to water flow according to the present invention is simply connected with the chemical tank 90. In the drawings, the float 45 is floated at an outer side of the foam generation tank 41 so that the chemical feeder is stably floated on the chemical solution. The above construction is not limited thereto in the present invention. Namely, the chemical feeder may be floated on the chemical solution by the buoyancy of the foam generation tank 41. In the flux-proportional feeder according to the present invention, the foam generator 40 further includes a filtering net 61 installed at the entrance of the chemical liquid pipe path 60 connected with the interior of the chemical tank 90. A certain foreign substance that may cause a malfunction of the liquid level maintaining valve 70 and the foam generator 40 is prevented from being inputted into the interior of the foam generation tank 41. In particular, the filtering net 61 preferably has a wider surface area, so that the foreign substances can be effectively filtered by the surfaces of the filtering net 61 for thereby preventing the blocking of the chemical liquid input pipe path 60. As shown in the drawings, there is shown a chemical dissolving unit 80 in the chemical tank 90 wherein solid chemical stored in the interior of the chemical tank 90 is dissolved in the chemical solution 97 stored in the chemical tank 90. The apparatus for discharging chemicals in proportion to water flow
according to an embodiment of the present invention is connected with the water pipe by various methods. Figure 7 is a cross sectional view illustrating a connection of an apparatus for discharging chemicals in proportion to water flow, a water pipe and a water tank according to an embodiment of the present invention. As shown therein, a water level maintaining valve 112 is installed at an end portion of the water pipe 1 for maintaining the water level of the water tank 2 uniform. The apparatus for discharging chemicals in proportion to water flow according to an embodiment of the present invention is installed in such a manner that one end of the chemical liquid input pipe 10 is connected with a certain portion of the water level maintaining valve 112. When the water level maintaining valve 112 is opened, and water is supplied to the water tank 2, chemical is fed to the water pipe 1.
Industrial Applicability The chemical can be fed in proportion to the flux of water supplied from a water collection source to the water tank. Therefore, with the above-described advantages and effects, the apparatus for discharging chemicals in proportion to water flow according to the present invention can be well adapted to a water supply system that needs an operation that the feeding amount of chemical can be adjusted within a range of a very small amount. As the present invention may be embodied in several forms without departing from the spirit or essential characteristics thereof, it should also be understood that the above-described examples are not limited by any of the details of the foregoing description, unless otherwise specified, but rather should be construed broadly within its spirit and scope as defined in the appended claims, and therefore all changes and modifications that fall within the meets and bounds of the claims, or equivalences of such meets and bounds are therefore intended to be embraced by the appended claims.
Claims
1. In an apparatus for discharging chemicals in proportion to water flow that is designed to feed chemical into water supplied from a certain water collection source to a water tank through a water pipe, an improved apparatus for discharging chemicals in proportion to water flow, comprising: a foam generator that mixes chemical solution and gas for thereby generating chemical foams; and a chemical liquid input pipe that is designed to suck the chemical foams generated by the foam generator based on a pressure difference generated due to a flow of water flowing in a water pipe between both ends of the same and to feed the chemical foams into the water pipe, wherein one end of the chemical liquid input pipe is connected with a portion of the water pipe, and the other end of the same is connected with the foam generator.
2. The apparatus of claim 1 , wherein said foam generator is a pipe having a gas inlet port at both ends of the same, wherein an entrance of one end of the pipe is connected with an entrance of the other end of the chemical liquid input pipe, and an entrance of the other end of the pipe is positioned within chemical solution stored in a certain container, and the gas inlet port is positioned within the gas above the liquid surface of the chemical solution stored in the container.
3. The apparatus of claim 1 , wherein said foam generator includes: a foam generation tank that is a sealed container and stores chemical solution and gas therein; and a gas inlet pipe that is a pipe shape and has a chemical liquid inlet port between both ends of the same, wherein one end of the pipe is connected with an outer portion of the foam generation tank for thereby receiving gas from the outside of the foam generation tank through the entrance of the same, and the chemical liquid inlet port is positioned within the chemical solution stored in the foam generation tank, and the entrance of the other end of the pipe is positioned within gas stored in the foam generation tank, wherein the other end of the chemical liquid input pipe is connected with the foam generation tank in such a manner that the entrance of the other end is distanced from a liquid surface of the chemical solution stored in the foam generation tank and is positioned within the gas stored in the foam generation tank.
4. The apparatus of claim 1 , wherein said foam generator includes: a foam generation tank that is a sealed container and stores chemical solution and gas therein; and a gas inlet pipe of which an entrance of one end is connected with an outer portion of the foam generation tank, and an entrance of the other end is positioned within the chemical solution stored in the foam generation tank so that gas is inputted from the outside of the foam generation tank and is mixed with the chemical solution stored in the foam generation tank, wherein the other end of the chemical liquid input pipe is connected with the foam generation tank in such a manner that the entrance of the other end is distanced from a liquid surface of the chemical solution stored in the foam generation tank and is positioned within the gas stored in the foam generation tank.
5. The apparatus of either claim 3 or claim 4, wherein said foam generator further includes a foam guide container that is formed in a container shape and has a chemical liquid flow path of which at least one end is opened, and is installed in the interior of the foam generation tank in such a manner that the opened end is positioned within the gas stored in the foam generator on a liquid surface of the chemical solution stored in the foam generation tank, and the other end and the chemical liquid flow path are positioned within the chemical solution stored in the foam generation tank, wherein the other end of the chemical liquid input pipe is connected with the foam generation tank in such a manner that the entrance of the same is opposite to the opened entrance of the foam guide container at the upper side of the foam guide container.
The apparatus of claim 5, wherein said foam generator further includes: a chemical liquid inlet pipe path that connects the interior of the chemical tank and the interior of the foam generation tank so that the chemical solution stored in a certain chemical tank is inputted into the interior of the foam generation tank; and a liquid level maintaining valve that is installed at the chemical liquid inlet pipe path for thereby maintaining a liquid level of the chemical solution stored in the foam generation tank uniform.
7. The apparatus of claim 6, wherein said liquid level maintaining valve includes: a valve body that includes a through hole having a downwardly formed entrance, and a circular seat surface formed at an edge portion of the downward entrance and is connected with an entrance of the chemical liquid inlet pipe path, wherein a guide has a diameter larger than the diameter of the seat surface and is positioned at a circumferential surface concentric with the seat surface, and the guide is formed in a downward direction from a surrounding portion of the entrance in which the seat surface is formed, and the other entrance of the through hole is connected with an interior of the foam generation tank; an opening and closing member that is a spherical member having a certain diameter larger than the diameter of the seat surface and enough to be received in a space formed by a plurality of guides and is guided by the guides at a lower side of the sear surface and is moved up and down and is received in a space formed by the guides; and a valve opening and closing float that is a certain float floated on the chemical solution and is guided by the guides at a lower side of the opening and closing member and is installed in a space formed by the guides so that the valve opening and closing float is moved up and down.
8. The apparatus of claim 7, wherein said seat surface of the valve body and an outer surface of the opening and closing member are formed of ceramic or zirconia material.
9. The apparatus of claim 8, wherein said foam generator is floated on the chemical solution stored in the chemical tank so that an entrance of the chemical liquid inlet pipe path connected with an interior of the chemical tank is positioned at a lower side of the liquid surface of the chemical solution stored in the chemical tank.
10. The apparatus of claim 9, wherein said foam generator further includes a filtering net installed at an entrance of the chemical liquid inlet pipe path connected with an interior of the chemical tank.
11. The apparatus of claim 6, wherein said foam generator is floated on the chemical solution stored in the chemical tank so that an entrance of the chemical liquid inlet path connected with an interior of the chemical tank is positioned at a lower side of the liquid surface of the chemical solution stored in the chemical tank.
12. The apparatus of either claim 3 or claim 4, wherein said foam generator further includes a chemical liquid inlet pipe path that connects an interior of the chemical tank and an interior of the foam generation tank so that the chemical solution stored in the chemical tank is inputted into the interior of the foam generation tank.
13. The apparatus of claim 12, wherein said foam generator further includes a liquid level maintaining valve that is installed at the chemical liquid inlet pipe path so that the liquid level of the chemical solution stored in the foam generation tank is maintained uniform.
14. The apparatus of claim 13, wherein said liquid level maintaining valve includes a valve opening and closing float that is floated on the chemical O 2005/047193
26 solution in cooperation with buoyancy generated based on the chemical solution stored in the foam generation tank.
15. The apparatus of claim 14, wherein said liquid level maintaining valve includes: a valve body in which a through hole is a downwardly formed entrance; a circular seat surface is formed at an edge portion of the entrance formed in the downward direction; a guide has a diameter larger than the diameter of the seat surface and is downwardly extended in a lower side direction from a surrounding portion of the entrance in which the seat surface is formed, for thereby being positioned at a circumferential surface concentric with the seat surface; and the other entrance of the through hole is connected with an entrance of the chemical liquid inlet pipe path connected with the interior of the foam generation tank; and an opening and closing member that is a spherical member having a diameter larger than the diameter of the seat surface wherein said diameter is determined so that said opening and closing member is enough to be received in a space formed by a plurality of spaces and is guided by the guide at a lower side of the seat surface and is moved up and down and is received in a space formed by the guides, wherein said valve opening and closing float is installed in a space formed by the guides in such a manner that said valve opening and closing float is guided by the guide at a lower side of the opening and closing member and is moved up and down.
16. The apparatus of claim 15, wherein a seat surface of the valve body and an outer surface of the opening and closing member are formed of ceramic or zirconia material.
17. The apparatus of claim 16, wherein said foam generator is floated on the chemical solution stored in the chemical tank so that an entrance of the chemical liquid inlet pipe path is positioned at a lower side of the liquid surface of the chemical solution stored in the chemical tank.
18. The apparatus of claim 17, wherein said foam generator includes a filtering net installed at an entrance of the chemical liquid inlet pipe path connected with an interior of the chemical tank.
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| KR10-2003-0080793 | 2003-11-12 | ||
| KR1020030080793A KR100433588B1 (en) | 2003-11-12 | 2003-11-12 | Apparatus for discharging chemicals in proportion to water flow |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| WO2005047193A1 true WO2005047193A1 (en) | 2005-05-26 |
Family
ID=34587910
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| PCT/KR2004/002928 WO2005047193A1 (en) | 2003-11-12 | 2004-11-12 | Apparatus for discharging chemicals in proportion to water flow |
Country Status (2)
| Country | Link |
|---|---|
| KR (1) | KR100433588B1 (en) |
| WO (1) | WO2005047193A1 (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102351300A (en) * | 2010-06-08 | 2012-02-15 | 严义钿 | Ocean element alkaline water manufacturing device |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR100603745B1 (en) * | 2004-02-09 | 2006-07-25 | 주식회사 시온테크닉스 | Apparatus for discharging chemicals |
| CN112811484B (en) * | 2021-01-14 | 2022-09-23 | 连云港师范高等专科学校 | Crab pool sprays formula medicine and puts in device |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS6256191U (en) * | 1985-09-27 | 1987-04-07 | ||
| JPS6382499U (en) * | 1986-11-14 | 1988-05-30 | ||
| US5582718A (en) * | 1994-06-14 | 1996-12-10 | Sobczak; Donald J. | Non-pressurized algaecide feeder method and apparatus for swimming pools and the like |
| KR20030038574A (en) * | 2003-02-07 | 2003-05-16 | 김삼식 | A disinfectant auto-supply system for waterworks |
-
2003
- 2003-11-12 KR KR1020030080793A patent/KR100433588B1/en not_active IP Right Cessation
-
2004
- 2004-11-12 WO PCT/KR2004/002928 patent/WO2005047193A1/en active Application Filing
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS6256191U (en) * | 1985-09-27 | 1987-04-07 | ||
| JPS6382499U (en) * | 1986-11-14 | 1988-05-30 | ||
| US5582718A (en) * | 1994-06-14 | 1996-12-10 | Sobczak; Donald J. | Non-pressurized algaecide feeder method and apparatus for swimming pools and the like |
| KR20030038574A (en) * | 2003-02-07 | 2003-05-16 | 김삼식 | A disinfectant auto-supply system for waterworks |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102351300A (en) * | 2010-06-08 | 2012-02-15 | 严义钿 | Ocean element alkaline water manufacturing device |
Also Published As
| Publication number | Publication date |
|---|---|
| KR100433588B1 (en) | 2004-06-01 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| AU644924B2 (en) | Chemical feed apparatus | |
| AU2002239605B2 (en) | Chemical feeder | |
| US20020195404A1 (en) | Method of operating a chemical feeder | |
| AU2002239605A1 (en) | Chemical feeder | |
| CN102498069A (en) | Method and device for dissolving solid substances in water | |
| US8192616B2 (en) | Pressurized wastewater effluent chlorination system | |
| US5695635A (en) | Ozone purifying apparatus | |
| JP2008161734A (en) | Functional water making apparatus and functional water making method using it | |
| NZ560748A (en) | Chemical feeder for introducing chemicals into a swimming pool | |
| US9056286B2 (en) | Chemical solution feeder and method | |
| WO2005047193A1 (en) | Apparatus for discharging chemicals in proportion to water flow | |
| US8728310B1 (en) | Water processing system | |
| JP2013010068A (en) | Ozone liquid generator and method for generating ozone liquid | |
| KR100666464B1 (en) | Chemical composition injection | |
| US9732768B2 (en) | Intermittent fluid pump | |
| KR101779487B1 (en) | Biological apparatus for treating waste water | |
| KR100603745B1 (en) | Apparatus for discharging chemicals | |
| KR100472834B1 (en) | Apparatus for discharging chemicals in proportion to water flow | |
| CN209352715U (en) | A kind of manufacturing of gelatin wastewater treatment equipment | |
| CN217996881U (en) | Gas-lift biofilm reactor | |
| RU2816955C1 (en) | Water-containing liquid medium aerator | |
| CN218968967U (en) | SBR reactor for advanced oxidation process | |
| CN202658044U (en) | Scattered sewage treatment device | |
| CN113636660B (en) | Corridor type aeration tank | |
| EP1023242A1 (en) | Method and apparatus for purifying a liquid by means of flotation |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| AK | Designated states |
Kind code of ref document: A1 Designated state(s): AE AG AL AM AT AU AZ BA BB BG BR BW BY BZ CA CH CN CO CR CU CZ DE DK DM DZ EC EE EG ES FI GB GD GE GH GM HR HU ID IL IN IS JP KE KG KP KZ LC LK LR LS LT LU LV MA MD MG MK MN MW MX MZ NA NI NO NZ OM PG PH PL PT RO RU SC SD SE SG SK SL SY TJ TM TN TR TT TZ UA UG US UZ VC VN YU ZA ZM ZW |
|
| AL | Designated countries for regional patents |
Kind code of ref document: A1 Designated state(s): BW GH GM KE LS MW MZ NA SD SL SZ TZ UG ZM ZW AM AZ BY KG KZ MD RU TJ TM AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HU IE IS IT LU MC NL PL PT RO SE SI SK TR BF BJ CF CG CI CM GA GN GQ GW ML MR NE SN TD TG |
|
| 121 | Ep: the epo has been informed by wipo that ep was designated in this application | ||
| 122 | Ep: pct application non-entry in european phase |