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Zero cold water system and method for avoiding false start of water heater

A water heater and false start technology, which is applied to fluid heaters, flushing equipment with water tanks, water supply devices, etc., can solve problems such as high cost, insufficient wireless communication ability to penetrate walls, and inability to effectively solve the problem of electric three-way power supply.

Pending Publication Date: 2021-05-18
GUANGDONG MACRO GAS APPLIANCE
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The communication between the electric three-way valve and the whole machine requires a high investment cost; the current 433MHz wireless communication and power carrier wireless communication are not capable of penetrating walls and the cost is high, and the power supply problem of the electric three-way cannot be effectively solved

Method used

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  • Zero cold water system and method for avoiding false start of water heater
  • Zero cold water system and method for avoiding false start of water heater

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Embodiment Construction

[0025] In the description of the present invention, it should be noted that for orientation words, such as the terms "center", "horizontal", "longitudinal", "length", "width", "thickness", "upper", "lower" , "Front", "Back", "Left", "Right", "Vertical", "Horizontal", "Top", "Bottom", "Inner", "Outer", "Clockwise", "Counterclockwise " and other indication orientations and positional relationships are based on the orientations or positional relationships shown in the drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, or in a specific orientation. The structure and operation should not be construed as limiting the specific protection scope of the present invention.

[0026] In addition, terms such as "first" and "second" are used for descriptive purposes only, and cannot be understood as indicating or implying rel...

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Abstract

The invention discloses a zero cold water system for avoiding false start of a water heater. The zero cold water system comprises the water heater, a water inlet pipe, a water outlet pipe, a plurality of water using points connected with the water outlet pipe, and a cold water pipe connected with the water using points, wherein the water inlet pipe and the water outlet pipe are connected with the water heater, a first one-way valve enabling the water outlet pipe to be communicated with the cold water pipe in a one-way mode is arranged at the water using point farthest from the water heater, the water outlet pipe, the cold water pipe, the water inlet pipe and the water heater form a circulation loop, and the cold water pipe is connected with an intelligent closestool. The zero cold water system is characterized in that a water tank of the intelligent closestool is a pressurizing water tank, and a flow limiting valve is arranged at the water inlet end of the pressurizing water tank; and the water outlet instant flow of the pressurizing water tank can reach 20 L / min or above, and the maximum water flow of the flow limiting valve does not exceed 7 L / min. The pressurization water tank and the flow limiting valve are adopted to prevent the gas water heater from being started by mistake on the basis that a user can flush the intelligent closestool cleanly, and the structure is simple and reliable.

Description

technical field [0001] The invention relates to the technical field of hot water supply systems, in particular to a zero-cold water system and method for avoiding misstart of water heaters. Background technique [0002] When the zero cold water gas water heater is installed without a return pipe, because the cold water pipe is used as the return pipe, a connecting valve (one-way valve) is required to connect the cold water pipe and the hot water pipe to form a circulation loop, so when the water point uses cold water, some The cold water will go through the gas water heater to the cold water point, especially the popular smart toilet. The water flow of the smart toilet can reach 20L / min when flushing. After testing, the water flow through the water heater can reach 5L / min. The start-up flow rate of gas water heaters is mostly 2.5L / min~3L / min, so when the smart toilet is flushed, the water heater will ignite and burn, which will lead to waste of gas and shorten the life of th...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): F24H9/20F24H9/12E03D1/24
CPCF24H9/2035E03D1/24F24H9/13
Inventor 艾穗江刘兵杨启欣
Owner GUANGDONG MACRO GAS APPLIANCE
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