Abstract: According to the present invention, an electrode terminal assembly for a liquid quality meter apparatus for measuring liquid quality on the basis of the electrical resistance of a liquid to be measured comprises: a pair of electrode terminals comprising a body, which contacts the liquid being measured when liquid quality is measured and has an overall rod shape, and a protruding step formed at a predetermined portion between the opposite ends of the body; and a fixing body comprising a pair of electrode through-holes through which the pair of electrode terminals pass. In the electrode terminal assembly having the above-described structure, each of the pair of electrode terminals is arranged such that, when the electrode terminals are inserted into the electrode through-holes of the fixing body by a predetermined length, the protruding step is caught by the fixing body so that the electrode terminals are no longer inserted.

Abstract: Disclosed are a combustion chamber for a water heater, a water heater including the same, and a method for manufacturing the combustion chamber. The combustion chamber for a water heater includes a first part, of which a first diameter that is a diameter of an upper end thereof is larger than a second diameter that is a diameter of a lower end thereof, a second part, of which a diameter of an upper end is the same as the second diameter and of which a third diameter that is a diameter of a lower end thereof is smaller than the second diameter, and a third part, of which an upper end is connected to the lower end of the first part and of which a lower end is connected to the upper end of the second part.

Abstract: According to the present invention, an electrode terminal assembly for a liquid quality meter apparatus for measuring liquid quality on the basis of the electrical resistance of a liquid to be measured comprises: a pair of electrode terminals comprising a body, which contacts the liquid being measured when liquid quality is measured and has an overall rod shape, and a protruding step formed at a predetermined portion between the opposite ends of the body; and a fixing body comprising a pair of electrode through-holes through which the pair of electrode terminals pass. In the electrode terminal assembly having the above-described structure, each of the pair of electrode terminals is arranged such that, when the electrode terminals are inserted into the electrode through-holes of the fixing body by a predetermined length, the protruding step is caught by the fixing body so that the electrode terminals are no longer inserted.

Abstract: A CDI-type water treatment device according to the present invention comprises: a filter unit for purifying raw water in a CDI type through an electrode part formed by alternately stacking electrodes and separators; and a sterilization unit provided on the front of the filter unit to supply the electrode part with a sterilization substance, which has been generated from the raw water in order to sterilize the electrode part. The sterilization unit, in this case, preferably operates after a predetermined time has passed since the electrode part has both stopped purifying raw water and stopped regenerating the electrodes.

Abstract: Disclosed is a water treatment apparatus which can extract clean water by means of the pressure of raw water. The disclosed water treatment apparatus comprises: a filter part which filters raw water; a storage part which stores clean water filtered by passing through at least a part of the filter part, the storage part having a first chamber and a second chamber of which the volume changes according to a change in the volume of the first chamber; an extraction part which is installed so as to provide the filtered clean water to a user; and an air supply part which is installed on a flow path connected to the storage part in order to supply air to either one of the first chamber or the second chamber of the storage part.

Abstract: A water treatment apparatus is disclosed. The water treatment apparatus, according to one embodiment of the present invention, may comprise: a filter unit comprising a reverse osmosis filter for supplying purified water filtered from raw water, and residential water which could not be filtered from raw water; a storage unit connected to the filter unit and comprising a storage member in which purified water is stored, then discharged, and a housing within which the storage member is provided, and through which residential water inflows and outflows; and a flow path changing valve connected to the filter unit and the storage unit, and which allows residential water to outflow from the housing as purified water is stored in the storage member, or allows purified water to be discharged from the storage member as residential water inflows into the housing.

Abstract: Provided are a heat exchange method of tap water using a heat exchanger, and the heat exchanger. The content of residual chlorine in the tap water is about 2 ppm or more, the heat exchanger comprises a plurality of heat plates, which comprise ferritic stainless steel, and copper brazing configured to couple the heat plates, and the ferritic stainless steel contains less than about 0.5 wt % of nickel, about 0.1 wt % to about 2 wt % of copper, and about 0.03 wt % or less of carbon.

Abstract: An electrodeionization filter includes: a housing having a water inlet and a water outlet; a first electrode installed inside the housing in a spiral shape; a second electrode installed inside the housing in a spiral shape so as to be spaced apart from the first electrode; and an ion exchange module installed between the first electrode and the second electrode for adsorbing or desorbing ionic substances contained in water introduced by an application of electricity. At least one of the first electrode and the second electrode has a structure in which a center portion thereof is denser than a peripheral region thereof. Accordingly, the lifespan of the electrodes of the electrodeionization filter can be increased, and the assembly of the electrodes and related parts can be easily facilitated.

Abstract: Provided is a soft-water system which connects to a main channel for supplying raw water to a place of consumption, removes at least a part of an ionic material contained in the raw water supplied through the main channel, and supplies soft water containing less ionic material than the raw water to the place of consumption. The soft-water system includes: a filter portion which receives supplied water derived from raw water, removes at least a part of an ionic material contained in the supplied water on the basis of electric power, and discharges first soft water containing less ionic material than the supplied water; and a storage portion which receives and stores the first soft water and discharges second soft water derived from the stored first soft water, wherein at least one of the first soft water and the second soft water is supplied to a place of consumption.

Abstract: Disclosed are a sterilizing structure of a water outlet and a water treatment apparatus including the same. The sterilizing structure of the water outlet according to an embodiment of the present invention may comprise a water outlet for discharging treated water treated in a water treatment device externally, and a sterilizer for sterilizing the water outlet.

Abstract: The present invention provides a water treatment device comprising: a filtering unit for filtering raw water; a storing unit comprising a first chamber for storing purified water, which has passed through at least a predetermined number of filters provided in the filtering unit and thus has been filtered, and a second chamber, the volume of which changes according to the volume change of the first chamber; an extraction unit installed to provide the user with the purified water that has been filtered; an sterilizing water supply unit for supplying sterilizing water in order to sterilize/disinfect the storing unit; and a control unit for controlling the driving of the sterilizing water supply unit and the opening/closing of a channel for supplying the sterilizing water.

Abstract: Disclosed are a water storage tank bladder, a manufacturing method therefor, the water storage tank including the bladder, and a water treatment apparatus including the water storage tank. According to one embodiment of the present invention, the water storage tank bladder used in the water storage tank to receive and store water and discharge the stored water has a lower side of which the thickness can be thicker than the thickness of the upper side of the bladder and thicker than the thickness of the lateral sides of the bladder.

Abstract: The present invention provides a water treatment device comprising: a filtering unit for filtering raw water; a storing unit comprising a first chamber for storing purified water, which has passed through at least a predetermined number of filters provided in the filtering unit and thus has been filtered, and a second chamber, the volume of which changes according to the volume change of the first chamber; an extraction unit installed to provide the user with the purified water that has been filtered; an sterilizing water supply unit for supplying sterilizing water in order to sterilize/disinfect the storing unit; and a control unit for controlling the driving of the sterilizing water supply unit and the opening/closing of a channel for supplying the sterilizing water.

Abstract: Disclosed are a sterilizing structure of a water outlet and a water treatment apparatus including the same. The sterilizing structure of the water outlet according to an embodiment of the present invention may comprise a water outlet for discharging treated water treated in a water treatment device externally, and a sterilizer for sterilizing the water outlet.

Abstract: A CDI type water treatment apparatus according to the present invention includes: a CDI filter unit which discharges purified water in a purification mode for purifying raw water, discharges recycle water in a recycle mode for recycling electrodes, and includes a water inlet port through which the raw water is introduced and a water outlet port through which the purified water or the recycle water is discharged; a supply unit for supplying the raw water to the CDI filter unit; a dispensing unit for dispensing the purified water to a user; a discharge unit for discharging the recycle water to the outside; a valve unit including a plurality of valves; and a control unit for controlling opening or closing the valves of the valve unit.

Abstract: Disclosed is a water treatment apparatus which can extract clean water by means of the pressure of raw water. The disclosed water treatment apparatus comprises: a filter part which filters raw water; a storage part which stores clean water filtered by passing through at least a part of the filter part, the storage part having a first chamber and a second chamber of which the volume changes according to a change in the volume of the first chamber; an extraction part which is installed so as to provide the filtered clean water to a user; and an air supply part which is installed on a flow path connected to the storage part in order to supply air to either one of the first chamber or the second chamber of the storage part.

Abstract: Disclosed are a water storage tank bladder, a manufacturing method therefor, the water storage tank including the bladder, and a water treatment apparatus including the water storage tank. According to one embodiment of the present invention, the water storage tank bladder used in the water storage tank to receive and store water and discharge the stored water has a lower side of which the thickness can be thicker than the thickness of the upper side of the bladder and thicker than the thickness of the lateral sides of the bladder.

Abstract: A water treatment apparatus is disclosed. The water treatment apparatus, according to one embodiment of the present invention, may comprise: a filter unit comprising a reverse osmosis filter for supplying purified water filtered from raw water, and residential water which could not be filtered from raw water; a storage unit connected to the filter unit and comprising a storage member in which purified water is stored, then discharged, and a housing within which the storage member is provided, and through which residential water inflows and outflows; and a flow path changing valve connected to the filter unit and the storage unit, and which allows residential water to outflow from the housing as purified water is stored in the storage member, or allows purified water to be discharged from the storage member as residential water inflows into the housing.

Abstract: A device for treating water by CDI method according to the present invention comprises a filter unit including first and second filter parts having a water-purifying mode of discharging purified water by purifying raw water and a regeneration mode of regenerating an electrode according to the CDI method; and a control unit for controlling the filter unit. Here, if any one of the first and second filter parts is in the water-purifying mode for a first time, the other one is in the regeneration mode for a second time. In addition, if the water-purifying mode stops in the middle of the first time, the control unit stops the regeneration mode and then performs a first control of flushing the filter part in the regeneration mode with the raw water for a third time.

Abstract: A device for treating water by CDI method according to the present invention comprises a filter unit including first and second filter parts having a water-purifying mode of discharging purified water by purifying raw water and a regeneration mode of regenerating an electrode according to the CDI method; and a control unit for controlling the filter unit, wherein if any one of the first and second filter parts performs the water-purifying mode for a first time, the other one performs the regeneration mode for a second time, and the control unit determines the first time or the second time on the basis of the water-purifying performance of the first filter part and the second filter part.