Abstract:
The object of the present invention is to provide a gas water heater and a hot water supply device having the same, wherein the gas water heater can properly respond to a situation in which a hot water consumption is greater than a hot water generating capacity and can be compatibly used in all situations where the hot water consumption is higher or lower than the hot water generating capacity. To achieve this objective, a gas water heater of the present application includes: a direct water pipe (111) for inflow of direct water; a flow rate sensor (120) which is mounted on the direct water pipe (111) and measures the flow rate of the direct water; a heat exchanger (130) which carries out heat exchange of the direct water, which passes through the flow rate sensor (120), by the combustion of a burner; a hot water pipe (112), through which hot water heated at the heat exchanger (130) flows; a flow rate control valve (140) which is mounted on the hot water pipe (112) and controls the flow rate of the hot water to be discharged; and a bypass pipe (113) which is connected to a direct water branch member (114) and the direct water pipe (111) at one side end and the direct water and hot water mixing member (115) and the hot water pipe (112) at the other side end. The gas water heater of the present application is characterized in that an opening and closing valve (150), a pump (160) and a three-way valve (170) are mounted on the bypass pipe (113), wherein the opening and closing valve (150) controls the flow of water flowing through the inside of the bypass pipe (113), the pump (160) circulates the water in the pipe, and the three-way valve (170) has an opening degree which is set to connect any two of three paths.
Abstract:
The present invention aims to provide a latent heat exchanger having a pre-heating device for supplied air, for pre-heating air flowing in from the outside of a boiler as the air passes through the latent heat exchanger, and for supplying the air through an air blower so as to reduce combustion load. To this end, the boiler of the present invention comprises: a burner for combusting fuel and air supplied through the air blower; a sensible heat exchanger for absorbing sensible heat generated from combustion by the burner; a latent heat exchanger for absorbing the latent heat of water vapors, which are included in a combustion product that has been heat-exchanged in the sensible heat exchanger; and an exhaust hood for discharging the combustion product, which is passed through the latent heat exchanger, wherein the latent heat exchanger is provided with a pre-heating port for forming an air passage so that the air supplied from the outside of the boiler is supplied to the air blower after being pre-heated by heat-exchanging with the combustion product.
Abstract:
The present invention has an object to provide a hot water storage tank for a water heater, wherein the coupling structure of a water inlet and a water outlet, which are provided in the main body of the hot water storage tank, is simplified so that the manufacture thereof may be simplified and costs may be reduced. In order to realize the object, the hot water storage tank of the present invention includes: a main body for storing hot water therein; a water inlet, through which the hot water flows into the inside of the main body; and a water outlet, through which the hot water flows out of the main body. The water inlet and the water outlet are formed at the same position in the main body. The water outlet is formed in the water inlet by penetrating the inside of the water inlet. According to the present invention, the water inlet and the water outlet are positioned at the same position in the main body and the water outlet penetrates the inside of the water inlet so as to be positioned therein, so that the whole structure of the hot water storage tank is simplified. Therefore, it is possible to simplify the manufacturing of the hot water storage tank and reduce manufacturing costs.
Abstract:
The present invention relates to a heat exchanger in which a coil is processed such that circularly wound pipes adjacent to each other are closely attached to each other, a flow path is formed such that a combustion product flows along an inner space having a cylindrical shape and defined by the wound coil, heat transfer efficiency with heated water flowing along the inside of the coil is maximized to simplify and miniaturize the structure of the heat exchanger, and a process for cleaning the inside of the heat exchanger is easily performed. For this purpose, a heat exchanger having a coil shape in which pipes are circularly wound is provided. In the heat exchanger having the coil shape, pipes adjacent to each other are closely attached to each other. Here, a combustion product does not flow between the pipes adjacent to each other. The combustion product flows only through a cylindrical inner space defined by the coil of the wound pipes.
Abstract:
The present invention relates to a three-way valve and to a pipe body coupling structure in which a three-way valve, to be connected to the inlets/outlets of a pipe body which are formed in three directions, to selectively convert a flow direction, is arranged so as to be easily disassembled/assembled from/to the inside/outside of the pipe body, thereby enabling the easy repair and maintenance of the three-way valve. To accomplish this, the three-way valve and pipe body coupling structure of the present invention comprises a three-way valve and a pipe body. The three-way valve comprises: a valve body having three openings; a valve element which moves in the upward and downward directions within the valve body so as to close one of the three openings; and power transmission means for moving the valve element. The pipe body has three inlets/outlets connected to the respective openings, and a three-way valve connection portion formed at one side thereof. The three-way valve is inserted into the three-way valve connection portion from the outside of the pipe body.
Abstract:
The present invention relates to a pipe connecting structure of a water heater, wherein individual parts in the water heater are integrally coupled with a pipe body, which is injection-molded, so as to form paths of direct water and hot water, thereby reducing the number of pipes connecting the individual parts and simplifying the connection structure of the pipes. In order to realize this, according to the present invention, the pipe connecting structure of a water heater comprising a direct water inlet pipe connected from a direct water inlet to a heat exchanger; a hot water supply pipe connected from the heat exchanger to a hot water outlet; a flow sensor for measuring the flow rate of the direct water introduced via the direct water inlet; a flow control valve for controlling the flow rate of the hot water discharged via the hot water outlet; is characterized in that the pipe body which connects the direct water inlet, the direct water inlet pipe, the hot water supply pipe and the hot water outlet is formed integrally therewith.
Abstract:
The present invention relates to a make-up water valve and to a make-up water connection pipe, and to a structure for coupling same together. The coupling structure is one in which the make-up water valve may be inserted into the make-up water connection pipe to simplify the coupling structure between the make-up water valve and the make-up water connection pipe, and at the same time, a check valve of the make-up water valve may be easily assembled with or disassembled from the make-up water connection pipe to easily perform maintenance and repair processes on the make-up water valve and check valve. For this purpose, the make-up water valve of the present invention includes a valve body in which an inlet and outlet for make-up water are defined, a plate reciprocating so as to open or close a path between the inlet and outlet, a plunger contacting the plate, an elastic unit for elastically supporting the plunger against the plate, and a solenoid valve for vertically operating the plunger when power is applied. The cross-secton of both the inlet and outlet of the valve body has a concentric tube shape.
Abstract:
The present invention relates to a flow control valve and a combustion device having the same, in which a structure of combining the flow control valve with a pipe body is simplified by extending the pipe body inside a water heater toward the flow control valve so that the pipe body may be included as a part of a body of the flow control valve, and in which maintenance works for the flow control valve are readily conducted by separating and assembling the flow control valve on one external side of the pipe body. To realize said purpose, the flow control valve of the present invention comprises: a motor; a height control member of which the position is vertically varied by the rotation of the motor; a shaft which is axially combined with the lower end of the height control member; a guide member which guides the vertical movement of the shaft and the height control member, is formed with, on a side wall, an inlet into which a fluid flows, and is formed with, on the lower end, an opening from which the fluid flowed through the inlet is discharged; and a valve which controls the opening degree of the opening as the valve is vertically moved by being positioned on the lower end of the shaft.
Abstract:
Provided is a heat exchanger with a combination of a laminar flow type and a turbulent flow type employing a structure in which prominences and depressions are formed at surfaces of tubes of a non-fin laminar flow heat exchanger, to reduce an exhaust resistance and increase heat transfer efficiency. The heat exchanger includes a plurality of tubes having a rectangular cross-section and installed adjacent to each other so that an exhaust gas passes through passages between the tubes to exchange heat, characterized in that a laminar flow heat exchange part is installed at an inlet port through which the exhaust gas is introduced, and a turbulent flow heat exchange part is installed at an outlet port through which the exhaust gas is discharged.
Abstract:
Provided is a room-by-room valve control system which can control the temperature of each room using a single temperature controller, thereby reducing the installation cost thereof. The valve control system, which controls supply of heating water to a plurality of rooms requiring heating, includes a temperature controller installed in any one of the rooms, and proportional control valves installed in the respective rooms in order to control an amount of the heating water supplied to the rooms. The proportional control valves for the respective rooms have a degree of opening regulated according to a set value of the temperature controller.