摘要:
Provided is a method of controlling the temperature of hot water in a hot water supply system. The flow rate of water flowing into the hot water supply system is measured. Water is preheated/circulated through an internal circulation path connecting a first diverging point, a second diverging point, and a heat exchanger, after a controller stops the combustion of a heating device when the measured flow rate is an operation flow rate of the water supply system or less. The temperature of the water circulating is measured. Predetermined temperature is settled above user set-temperature as preheating circulation-off temperature and predetermined temperature is settled below the set temperature as preheating circulation-on temperature, and operation of the heating device is started when the temperature is the preheating circulation-on temperature or less, and the operation of the heating device is stopped when the measured temperature is the preheating circulation-off temperature or more.
摘要:
A water heater equipped with a leakage detecting device is provided. A flow control valve is disposed at an inlet and controls the flow rate of water flowing into the water heater. A leakage detecting device detects when water which has flowed in the water heater leaks out through pipes in the water heater due to burst of the pipes and is filled at or more than a predetermined level from the floor of a water heater case, and transmits a signal to a controller. A case protects parts in the water heater by shielding the parts from the outside. The controller controls a series of combustion processes and operation of the water heater, and closes the flow control valve, when a leakage detection signal is transmitted from the leakage detecting device.
摘要:
In a hot water supply system, a heat exchanger transfers heat from a heating device to inflow water to supply the inflow water at a user-set temperature. A flow sensor measures a flow rate of inflow water. A water tank stores outflow water discharged from the heat exchanger. A first temperature sensor, installed on an inlet pipe through which the inflow water flows, measures a temperature of the inflow water. A second temperature sensor, installed on an outlet pipe through which the outflow water flows, measures a temperature of the outflow water discharged from the heat exchanger. A controller includes an input unit to receive input from a user, wherein the controller controls an operation of the heating device based on at least one of: (1) comparison between the user-set temperature and the temperature of the outflow water; (2) variation in the flow rate; or (3) any combination thereof.
摘要:
The present invention relates to a hot water supply system that heats low-temperature water flowing into an inlet at a high temperature by using a heating device and supplies the high-temperature water through an outlet. The hot water supply system according to the present invention includes a heat exchanger that transmits heat of the heating device to the inflow water so as to supply the inflow water at a user set temperature; a flow sensor that measures a flow rate of the water flowing into the hot water supply system; a water tank that stores water discharged from the heat exchanger, a temperature sensor that is installed at a predetermined position on a pipe through which the water flows; and a controller that has an input unit to allow a user to input desired conditions, wherein the controller controls the operation of the heating device by comparing the user set temperature with a temperature measured by the temperature sensor and controls the operation of the heating device depending on variation in the flow rate measured by the flow sensor.
摘要:
A method of driving a display panel includes converting a first data enable signal including a first cycle based on a compensation parameter to generate a second data enable signal including a second cycle longer than the first cycle, generating a plurality of gate signals based on the second data enable signal to output the gate signals to a plurality of gate lines of the display panel, and generating a plurality of data voltages based on the first data enable signal to output the data voltages to a plurality of data lines of the display panel.
摘要:
A method of restoring a timing controller includes generating an error condition signal from a timing controller by checking abnormality of an image signal and a control signal provided from an image board, feeding back the error condition signal to the image board, and restoring the timing controller based on the error condition signal.
摘要:
Disclosed is a combustion apparatus of a gas boiler. The combustion apparatus of the gas boiler includes a structure that can improve a TDR of a burner, and can increase an efficiency of a gas boiler by preventing oxygen concentration of exhaust gas from being rapidly increased in a low output area The combustion apparatus includes: an air blower for supplying air required for combustion; a proportion control valve for controlling a supply flow rate of gas; a nozzle part connected to the proportion control valve, the nozzle part supplying gas according to opening and closing of auxiliary valves and including a plurality of nozzles connected in parallel with one another; a mixing chamber for mixing the air supplied from the air blower and the gas passed through the nozzle part, and then supplying the mixed air and gas to a bumer surface; and a controller for controlling the number of rotations of the air blower according to opening and closing of the proportion control valve and the auxiliary valves, so as to supply only an amount of air as much as that required for combustion.
摘要:
A high density ceramic thick film is fabricated by providing vehicle comprising an organic binder and solvent, dispersing ceramic powders into the vehicle to be paste, forming the paste to thick film by screen printing, removing the organic binder from the film, applying sol or sol-like solution to the surface of the film so that the sol or sol-like solution can infiltrate into the film, removing remaining sol or sol-like solution from the surface of the film, drying and preheating the film, and sintering the film.
摘要:
A display apparatus includes a display panel, a plurality of gate lines driving circuit parts, a plurality of data lines driving circuit parts and a timing control part. The display panel includes a plurality of gate lines and a plurality of data lines. The gate lines driving circuit parts output gate signals to the gate lines. The data lines driving circuit parts output data signals to the data lines. The timing control part applies a dummy gate signal to at least one dummy gate line, controls a latch sequence of image data and an output sequence of the gate lines driving circuit parts in a reverse sequence, in response to an inverted-mounting mode selection signal for displaying an inverted mount image to the display panel. Because signal lines can be shortened, heat generated by the display apparatus may be decreased and image quality of the display apparatus may be improved.
摘要:
Disclosed is a heat exchanger for a condensing boiler supplying both heating water and hot water, which can use a double pipe as a sensible heat exchanger, instead of the use of an indirect heat exchanger. The heat exchanger includes: a sensible heat exchanger; and a latent heat exchanger made by connecting a plurality of unit heat exchangers to define exhaust gas pathway, each unit heat exchanger being manufactured in such a manner that three plates having a convexo-concave shape are stacked on one another to define a heating water pathway and a hot water pathway to be adjacent to each other in order to increase a heat transfer area.