Instantaneous hot faucet and gas water heater linkage water-saving system

Abstract

The invention relates to an instantaneous hot faucet and gas water heater linkage water-saving system which comprises a gas water heater and an instantaneous hot faucet with an electric heater. The instantaneous hot faucet comprises a water outlet pipe and a switching switch. The water outlet pipe is respectively connected with a tap-water pipe and the gas water heater. The electric heater is arranged in the water outlet pipe, and a first temperature sensor is arranged between the switching switch and the gas water heater. The electric heater comprises a sealing sleeve, an electric heating unit, a heat insulation layer, a water inlet unit and a water outlet unit, wherein the electric heating unit, the heat insulation layer, the water inlet unit and the water outlet unit are arranged in the sealing sleeve. The water inlet unit and the water outlet unit are arranged at the two ends of the electric heating unit respectively. The heat insulation layer sleeves the electric heating unit, the sealing sleeve is provided with a temperature display screen and a control circuit with a temperature control sensor. The control circuit controls power of the electric heater according to the difference between a temperature collected by the temperature control sensor and a set temperature. Compared with the prior art, the instantaneous hot faucet and gas water heater linkage water-saving system can achieve the goals of water saving and comfort and have great significance in energy saving and emission reduction.

Description

technical field [0001] The invention relates to a gas water heater, in particular to a water-saving system in which an instant hot water faucet is linked with a gas water heater. Background technique [0002] A gas water heater is a thermal system that uses gas as fuel to transfer heat to cold water flowing through a heat exchanger through combustion and heating to prepare hot water. Because it brings a lot of conveniences to people, it is widely used by people, and there are many problems to be overcome for the use of gas water heaters. First of all, after the gas water heater stops running, the hot water in the hot water pipe will gradually cool down to room temperature (it takes about 15 minutes for the hot water to cool down to room temperature). Because cold water brings discomfort to people, it is often discharged directly, which causes a waste of water resources; secondly, when the hot water tap is turned on, there will be a lag time for the ignition of the gas, when...

AI Technical Summary

Problems solved by technology

First of all, after the gas water heater stops running, the hot water in the hot water pipe will gradually cool down to room temperature (it takes about 15 minutes for the hot water to cool down to room temperature). Because cold water brings discomfort to people, it is often discharged directly, which causes a waste of water resources; secondly, when the hot water tap is turned on, there will be a lag time for the ignition of the gas, when the tap water pressure is low , the ignition lag time is as long as more than 3 seconds, and it takes about 2 seconds to heat the cold water in the heat exchange coil of the gas water heater to the set temperature, so when the hot water is turned off during hot water use, There will be a cold water period of about 5 seconds in the middle. This period of cold water brings great inconvenience to the continuous use of hot water, and this period of cold water is often directly discharged

It can be seen that the waste of water resources is quite serious

In order to achieve the purpose of saving water and using water comfortably, in the relevant literature consulted, Chen Shulong introduced a water-saving water return system for water heaters and a water-saving method for water heaters. The problem of cold water is solved by using a gas water heater with a bypass system, but the disadvantage is that it needs New pipes and complex pipes are added; while the current mainstream electric heating faucets use iron-chromium heating wires; in Zhang Guoqi's introduction of commonly used electric heating materials and electric heating components for home appliances, iron-chromium electric heating wires have low high-temperature strength, and with the use of temperature Its plasticity increases, the components are easy to deform, and it is not easy to bend and repair; a water-saving and energy-saving gas water heater is disclosed in the Chinese patent CN202195580U, and a pre-heating system is provided. The pre-heating system includes heating for heating the heating coil device and the preheating system switch used to control the opening and closing of the heating device. Through the preheating system, the water in the heating coil can be preheated before the outlet valve on the outlet pipe is opened. When the outlet valve is opened, the outlet pipe can be quickly Hot water flows out, but the structure is more complicated and the scope of application is narrower

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