Dual-cycle zero-cold-water function control method

By using a dual-circulation zero-cold-water function control method, the external circulation path preheats the cold water and the internal circulation path returns the hot water to mix with the cold water at the inlet, solving the problem of slow water temperature adjustment in traditional gas water heaters. This achieves instant hot water and rapid water temperature control, improving user experience and energy-saving performance.

CN122670536APending Publication Date: 2026-09-01HANGZHOU ROBAM APPLIANCES CO LTD
0 Cites 0 Cited by

Patent Information

Application Number
CN202611166808.6
Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
Filing Date
2026-08-03
Publication Date
2026-09-01

AI Technical Summary

Technical Problem

Traditional gas water heaters rely on heating power adjustment to regulate water temperature, which is a slow process that results in long waiting times for users, affecting the comfort and convenience of water use.

Method used

The system employs a dual-circulation zero-cold-water function control method. It preheats cold water to a constant temperature through the external circulation path and stores it during water use. During the water use process, the hot water flows back through the internal circulation path and mixes with the cold water at the inlet to preheat the water. The heating power is adjusted in a coordinated manner, and waste heat is absorbed to achieve instant hot water and rapid water temperature regulation.

Benefits of technology

It improves the comfort and convenience of water use for users, meets users' needs for rapid and precise water temperature control, reduces energy consumption, and improves thermal energy utilization.

✦ Generated by Eureka AI based on patent content.
Patent Text Reader

Abstract

The application belongs to the technical field of kitchen appliances, and discloses a double-circulation zero-cold-water function control method, which comprises the following steps: obtaining a zero-cold-water instruction, pumping cold water into an outer circulation path to circulate and heat the water temperature to a first temperature threshold, and then storing the water at a constant temperature for a user to use; during the user's water use, supplying the hot water stored at a constant temperature to a water outlet, and then returning part of the hot water stored at a constant temperature to a water inlet end along an inner circulation path, mixing the returned hot water with cold water input into the water inlet end, preheating the mixed water, and then storing the preheated water at a constant temperature after heating; when the user stops using water, making the water flow in a pipeline flow along the inner circulation path to absorb residual heat, and then storing the water at a constant temperature. Therefore, the water that has been heated is circulated to the water inlet end through the inner circulation path to increase the water inlet temperature of the water inlet end, and the heating power of the heating function is adjusted in cooperation, so that the water temperature can change quickly, the time that the user needs to wait is effectively reduced, the comfort and convenience of the user's water use are improved, and the demand of the user for rapid and accurate regulation and control of the water temperature is met.
Need to check novelty before this filing date? Find Prior Art