Throttling method for water flow heating device

Abstract

The invention relates to a throttling method for a water flow heating device and aims to enable cold water drained when the water flow heating device initially operates to be greatly reduced and improve the heating speed of hot water so as to fulfill the double aims of throttling to save water and saving gas energy. According to the method, a water temperature detector is arranged at the water outlet end of the water flow heating device and a flow regulator capable of regulating the flow is arranged at the water inlet end of the water flow heating device; when the water temperature detector detects that an outlet water temperature is in a cold water state in the initial period of use of the water flow heating device, the water flow heating device can be regulated to discharge water under small flow by the flow regulator so as to accelerate the heating operation; when the water temperature detector detects that the outlet water temperature reaches or is close to a set value, the flow regulator can be driven to supply water under normal large flow, so that the cold water drained when the water flow heating device initially operates can be greatly reduced and heating time is shortened to save gas energy.

Description

technical field [0001] The throttling method of the water flow heating device of the present invention is applicable to instant water flow heating devices such as gas water heaters or electric water heaters, and can greatly reduce the cold water discharged during the initial operation of the water flow heating device, thereby achieving the purpose of saving water. Background technique [0002] Water flow heating systems are roughly divided into instantaneous heating systems and regenerative (heat storage) heating systems. Among them, the regenerative heating system is to store cold water in a heating boiler first, and then turn it on when the cold water is heated to a certain temperature; although this regenerative heating system can provide a large amount of hot water at one time, due to the slow heating speed, Moreover, after the heating is stopped, the water temperature will slowly cool down, resulting in a waste of resources, so it is mostly used in industries or restaur...

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Problems solved by technology

The problem with this design is that when the faucet is turned on, the water cannot flow because the water temperature has not yet reached the set temperature. At this time, if the water in the closed pipeline is to circulate, not only must the pipeline design of the entire water heating system be changed, but additional The pressure device, and the start switch for the user to operate

As a result, it is not only inconvenient to use, but also increases the cost of redesigning the pressurization device and pipeline, especially the pressurization device needs to consume extra power during operation. In short, it is to increase power consumption to reduce Displacement, this method obviously does not have any beneficial effect on environmental protection issues in a broad sense

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