Water-saving device for water heater

A technology for water-saving devices and water heaters, which is applied in the direction of fluid heaters, fluid circuit connections of solar collectors, and solar thermal power generation. It can solve problems such as low outlet water temperature and waste of water resources, and achieve high water-saving efficiency. The effect of high degree of automation and convenient operation

CN110806011AActive Publication Date: 2020-02-18ZHEJIANG GONGSHANG UNIVERSITY
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
Publication Date
2020-02-18

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Abstract

The invention relates to the field of energy saving of water heaters, in particular to a water-saving device for a water heater. The water-saving device for the water heater comprises a cold water injection pipe and a hot water outlet pipe which are connected to the water heater, wherein the end, far away from the water heater, of the cold water injection pipe is connected with a cold water inletpipe, and a mixed water pipe is connected to the end, far away from the water heater, of the hot water outlet pipe; the end, far away from the hot water outlet pipe, of the mixed water pipe is connected with the cold water inlet pipe, and the mixed water pipe is connected with a water outlet inner pipe; and the cold water inlet pipe is connected with a backflow outer pipe, the water outlet inner pipe is arranged in the backflow outer pipe and is not on the same axis as the backflow outer pipe, and the end, far away from the cold water inlet pipe, of the backflow outer pipe is connected with aterminal water outlet pipe through a backflow device. According to the water-saving device, cold water flowing out when the water heater is just opened cannot be wasted, and waste of the water resource is avoided.
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Description

technical field

[0001] The invention relates to the field of energy saving of water heaters, in particular to a water saving device for water heaters. Background technique

[0002] With the development of social industry, various high-efficiency water heaters emerge in endlessly in terms of water heaters, and the efficiency of water heaters is also getting higher and higher. Today's electric water heaters, solar water heaters, and air energy water heaters are becoming more and more common, but they still exist. Some problems, that is, when the water heater just starts to work, the temperature of the water out of the water outlet is not high, causing the cold water with insufficient temperature to be directly released, resulting in a waste of water resources. Contents of the invention

[0003] The present invention mainly aims to provide a water-saving device for water heaters, aiming at the problem that the water outlet temperature is not high when the existing water heate...

Examples

Embodiment 1

[0018] like figure 1 , 2 , 3, a water-saving device for a water heater, comprising a cold water injection pipe 3 and a hot water outlet pipe 7 connected to the water heater, the end of the cold water injection pipe 3 far away from the water heater is connected to the cold water inlet pipe 1, and the cold water inlet pipe 1 It can be connected with the tap water pipe, the cold water inlet pipe 1 supplies water to the water heater, the end of the hot water outlet pipe 7 far away from the water heater is connected with the mixing water pipe 8, and the end of the mixing water pipe 8 far away from the hot water outlet pipe 7 is connected with the cold water inlet pipe 1, The water outlet pipe 9 is connected to the mixing water pipe 8, and the return pipe 5 is connected to the cold water inlet pipe 1. The water outlet pipe 9 is arranged inside the return pipe 5 and is not on the same axis as the return pipe 5, that is, the water outlet pipe 9 Eccentrically arranged inside the retur...