Kyungdong Navien Co., Ltd.

Seung Kil Son

Jung Keom Kim

Soon Ki Kim

Yong Seok Lee

Hyoung Rae Kim

Soo Young Lee

Si Hwan Kim

Chang Heoi Heo

Chang Heoi Hu

Jae Myung Joo

Nam Soo Do

Soo Hyun Hur

Woo Sung Park

You Bin Lee

Chang Heo Heo

Disclosed is a water softening system includes a first and a second filter unit that selectively performs any one of a removable mode discharging soft water including less ionic material than a source water, and a recycling mode of discharging reclaimed water including more ionic material than the source water, a first and a second supply passage that supplies the source water to the first and the second filter unit, a first and a second discharge passage that discharges the soft water or the reclaimed water from the first and the second filter unit, a first recovery passage part that guides at least a portion of the reclaimed water in the first discharge passage to the second supply passage, and a second recovery passage part that guides at least a portion of the reclaimed water in the second discharge passage to the first supply passage.

Water softening system

A device for managing a temperature according to an embodiment of the present disclosure includes a conversion controller that estimates an indoor set temperature based on a temperature of air returned from a target zone and an operating time of a state converter, and controls a state conversion amount of the state converter by comparing the estimated indoor set temperature with the temperature of the returned air, and a heat exchanger for varying the temperature of the returned air and providing the air whose temperature is varied to the target zone.

Device for managing temperature

An embodiment of the present subject matter includes: a plurality of sockets connected to a plurality of hoses through which hot water is supplied and returned, and formed in a detachable structure; and clips provided outside the plurality of sockets with a clearance to support the plurality of sockets so as to have a degree of freedom.

Connector assembly for hose connection of hot water mat

A recirculation valve includes a housing including a hot water fluid passage which is used to allow the hot water to flow through, a cold water fluid passage to allow the cold water to flow through, and a recirculation fluid passage to allow the hot water in the hot water fluid passage to flow into the cold water fluid passage, a water pressure plate provided to close the recirculation fluid passage when the cold water or the hot water is used, and to open the recirculation fluid passage when the cold and hot waters are not used, and a bimetal plate configured to open the recirculation fluid passage as the bimetal plate is spaced apart from a recirculation opening and to close the recirculation fluid passage by making contact with the recirculation opening, and positioned downstream of the recirculation opening in a direction in which the hot water flows.

Recirculation valve and hot water recirculation system using the same

The present invention relates to a warm water recirculating valve using a direct water supply tube and, more particularly, to a warm water recirculating valve provided between a warm water supply tube () installed in an existing housing and a direct water supply tube () in order to recirculate warm water, the warm water recirculating valve comprising: a housing () having warm water channels () formed therein and connected to the warm water supply tube (), having direct water channels () formed therein and connected to the direct water supply tube (), and having a recirculating channel () formed therein and connected between the warm water channels () and the direct water channels (); and a water pressure plate () provided in the direct water channels () so as to generate a differential pressure such that, when warm water is recirculated, the recirculating channel () is opened by pressure of the recirculated warm water and, when direct water is used, the recirculating channel () is closed by pressure of the direct water.

Warm water recirculating valve using direct water supply tube

Provided is a method for measuring the temperature at each location of a pipe in a hot water supply system comprising a water heater, a pipe, and outlets, the method comprising checking for a temperature of a first point (T), which is upstream of the outlet, a temperature of a second point (T), which is downstream of the outlet and an outdoor temperature (T), and confirming a length (L) of the pipe from the first point to the second point, then measuring a temperature of the pipe located at a distance of x away from the first point.

Method for measuring temperature at each location of pipe in hot water supply system

The purpose of the present invention is to provide a combustion device for improving a turndown ratio, which is capable of stably implementing a combusted state in a low-output load region by improving a turndown ratio of a burner. To this end, the present invention provides the combustion device having a premixing chamber () which is connected to an air supply tube () and a gas supply tube (), and which has a space for premixing air and gas provided therein, wherein the space for premixing the air and gas supplied from the air supply tube () and the gas supply tube () is divided into multiple stages of a venturi structure in the premixing chamber (), and the discharging direction of the gas discharged inside the premixing chamber () through the gas supply tube () is formed in parallel to the flow direction of the gas supplied inside the premixing chamber () through the air supply tube ().

Combustion device for improving turndown ratio

According to the present invention, a gas-air mixing device used in a gas boiler includes: a gas supply tube branched into a first gas flow path and a second gas flow path; an air supply tube branched into a first air flow path and a second air flow path by means of an air-flow-path branching apparatus; a pressure valve which is connected to the inlet side of the gas supply tube in order to adjust the supply rate of gas being supplied to the gas supply tube; and a drive unit in which two valve bodies are connected to a rod that moves vertically up and down due to the magnetic force of an electromagnet; and the air-flow-path branching apparatus is formed to have a slot that connects to either the first air flow path or the second air flow path, and has a joining part which the rod can pass through in a position corresponding to the slot.

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Seoul, South Korea

Seung Kil Son