KYUNGDONG NAVIEN CO., LTD.

An evaporative condenser having improved condensation efficiency is provided. The evaporative condenser includes a condensation module including a connecting tube, a water injection module spraying water passing through the condensation module, above the condensation module, and a blowing module disposed on one side of the condensation module and supplying air passing through the condensation module. In the condensation module, N header rows including a first header extending in a first direction and having a flow path therein, a second header extending in the first direction and having a flow path therein, and a plurality of connecting tubes extending in a second direction between the first header and the second header and connecting the flow paths of the first header and the second header are stacked in a third direction, where N is a natural number greater than or equal to 2.

An air conditioner having a water nozzle cleaning system for cleaning a water nozzle spraying water to a heat exchanger, and a braking control method used therein are provided, the air conditioner including an evaporator, an expansion valve, a compressor and an evaporative condenser through which refrigerant circulates includes a water supply line including a first water line and a second water line branching from a water supply source and a third water line at which the first water line and the second water line are joined, and configured to supply water to the evaporative condenser; and a water control module including a control unit configured to control the water supply line.

A condenser includes first to third header rows, including a first header extending in a first direction and having a flow path therein, a second header extending in the first direction and having a flow path therein, and a plurality of connecting tubes extending in a second direction between the first and second headers and connecting flow paths of the first and second headers. The first to third header rows are stacked in a third direction, the first to third directions are orthogonal to each other, the 1-1 header and the 2-1 header are configured to communicate with each other, the 1-2 header, the 2-2 header and the 3-2 header are configured to communicate with each other, and at least one of the 1-1 header and the 2-1 header is provided with a plurality of fluid inlets connected to a fluid supply unit.

The present invention relates to a heat exchanger assembly and a water heater comprising same, wherein the heat exchanger assembly comprises a heat exchanger unit provided with an inlet for introducing a fluid and an outlet for discharging the fluid, and the heat exchanger unit may comprise: a first plate; a second plate disposed on one surface side of the first plate to define, together with the first plate, an internal space in which the fluid introduced through the inlet moves toward the outlet; a heat generation member coupled to at least one of the first plate and the second plate and provided to provide heat into the internal space; and a guide part disposed in the internal space and provided to guide the fluid introduced through the inlet toward one plate, to which the heat generation member is coupled, of the first plate and the second plate.

An air heating apparatus includes an expansion tank that stores water, a water heating device that receives heat from combustion gas generated by a combustion reaction and heats the water, a heating heat exchanger that receives the water heated by the water heating device and conducts heat exchange between air to be released for heating and the water, a fan that supplies the air to the heating heat exchanger, and a case in which the water heating device, the expansion tank, the heating heat exchanger, and the fan are disposed. The case includes an outer box, a first partition wall that is coupled to the outer box and that extends in a reference direction perpendicular to an up-down direction to divide the inside of the outer box into a first partition space and a second partition space, and an air guide.

the present disclosure provides a heat exchanger, by which a local temperature imbalance may be solved and generation of scale may be suppressed.

An air conditioner includes an evaporator in which refrigerant circulates, an expansion valve, a compressor, an evaporative condenser, a water injection module configured to spray water into the evaporative condenser, and a control unit configured to control an operation of the water injection module. The water injection module includes a supply line including a plurality of pressure regulation units configured to regulate a water injection pressure of water supplied to the evaporative condenser to different pressures while passing through a plurality of branch water injection lines branching from a water supply source. Each of the pressure regulation units includes a branch water injection line, a control valve disposed on the branch water injection line, the control valve configured to open and close a flow path of the branch water injection line, and a pressure reducing valve disposed on the branch water injection line.

A heat-exchanger unit according to the present invention comprises: a sensible-heat heat-exchange portion arranged in a sensible-heat heat-exchange area for receiving sensible heat generated by a combustion reaction and thereby heating water, the sensible-heat heat-exchange portion having a sensible-heat heat-exchange pipe for receiving the water and causing same to flow through the interior thereof, thereby forming a sensible-heat channel along which the water flows; and a latent-heat heat-exchange portion positioned downstream of the sensible-heat heat-exchange area with reference to a first reference direction along which combustion gas generated during the combustion reaction flows, the latent-heat heat-exchange portion being arranged in a latent-heat heat-exchange area for receiving latent heat generated during a phase change of the combustion gas and thereby heating the water, the latent-heat heat-exchange portion having a latent-heat heat-exchange pipe for receiving the water and causing same to flow through the interior thereof.

Disclosed is a cover fin including a front part and a rear part being perpendicular to a forward/rearward direction and spaced apart from each other in the forward/rearward direction, a connecting part connecting the front part and the rear part, a leg part extending from an upper end of the rear part toward an upper side when one direction being perpendicular to the forward/rearward direction is defined as an upward/downward direction, and a protrusion protruding from the leg part to a rear side.

A water heater according to the present invention includes: a heating unit that includes a burner provided to cause a combustion reaction from air and fuel, and that is provided to generate heated water by using heat generated by the combustion reaction; and a humidifier unit that generates water steam by evaporating water using a combustion gas generated by the combustion reaction and discharged from the heating unit, and provides the water steam together with the air to the burner.