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Anti-freezing control method and gas water heater

A technology of a gas water heater and a control method, which is applied in the direction of fluid heaters, lighting and heating equipment, etc., and can solve problems such as freezing and cracking of waterways or components, and achieve the effects of simple control methods, avoiding property losses, and reducing failure rates in use

Active Publication Date: 2020-02-28
VATTI CORP LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] The purpose of the present invention is to solve one of the problems existing in the existing related technologies at least to a certain extent. Therefore, the present invention proposes an antifreeze control method. The problem of freezing and cracking of waterways or parts in the environment

Method used

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  • Anti-freezing control method and gas water heater
  • Anti-freezing control method and gas water heater
  • Anti-freezing control method and gas water heater

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0040] Such as figure 1 Shown, a kind of antifreeze control method, comprises the steps:

[0041] S1: Continuously detect the real-time water flow value Qi of the gas water heater through the water flow detection device;

[0042] Specifically, the water flow detection device is installed in the waterway system of the gas water heater and is electrically connected with the control module of the gas water heater. The real-time water flow value Qi in the waterway system is continuously detected by the water flow detection device. The detected real-time water flow value Qi is compared with at least one preset value, which is used to determine that the water flow in the waterway system meets the preset water flow value in any of the working modes of the gas water heater entering the antifreeze, standby or normal working mode .

[0043] S2: Determine whether the real-time water flow value Qi is less than the first water flow threshold Qs1, if so, enter step S3, otherwise the gas w...

Embodiment 2

[0058] Such as image 3 As shown, the difference between this embodiment and Embodiment 1 is that the control method for ending the antifreeze working mode is different. Specifically, after the gas water heater enters the antifreeze working mode, further steps are included:

[0059] S401': Start the gas water heater to heat the internal water flow;

[0060] S402': collect the temperature rise value ΔTi of the water flow in the gas water heater through the temperature detection device interval time Δt;

[0061] Specifically, the temperature detection device in the waterway system collects the current water flow temperature Ti in the waterway system at intervals Δt, and the control module calculates the difference between the current water flow temperature Ti and the water flow temperature T(i-1) collected last time to obtain the temperature Appreciation ΔTi.

[0062] S403': Determine whether the temperature rise value ΔTi is less than or equal to the preset temperature thres...

Embodiment 3

[0071] Such as Figure 5 As shown, a gas water heater in this embodiment includes a water heater body 1, a water system with a water inlet pipe 2 and a water outlet pipe 3, and a gas control valve 4, which also includes: a water flow detection device 5, which is arranged on the water inlet pipe 2 or On the water outlet pipe 3, it is used for the real-time water flow value Qi of the water inlet pipe 2 or the water outlet pipe 3; the control module 6, the water flow detection device 5 and the gas control valve 4 are respectively electrically connected to the control module 6 for obtaining and judging the water inlet pipe 2 Or the relationship between the real-time water flow value Qi of the outlet pipe 3 and the first water flow threshold Qs1, and determine the working mode of the gas water heater based on the judgment result. Preferably, the water flow detection device 5 of this embodiment is arranged on the water inlet pipe 2 .

[0072] Further, it also includes: a temperatur...

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Abstract

The invention discloses an anti-freezing control method. The anti-freezing control method comprises the following steps: S1, continuously detecting a real-time water flow value Qi of a gas water heater; S2, determining whether the real-time water flow value Qi is less than a first water flow threshold value Qs1, if so, entering step S3, and if not, entering a standby or normal operating mode; S3,detecting a real-time water flow temperature Ti of the gas water heater; and S4, determining whether the real-time water flow temperature Ti is less than a preset temperature Tw, if so, entering an anti-freezing operating mode, and if not, entering a standby operating mode. According to the anti-freezing control method disclosed by the invention, the operating mode of the gas water heater is determined preliminarily according to the relationship between the real-time water flow value and the first water flow threshold value, and whether to enter the anti-freezing operating mode timely is determined according to the relationship between the real-time water flow temperature and the preset temperature, so that related parts of a water way system are ensured not to cause freezing cracking in alow-temperature environment; the control method is simple; and the self-adaptive capability of the gas water heater is effectively improved.

Description

technical field [0001] The invention relates to the technical field of water heaters, in particular to an antifreeze control method and a gas water heater. Background technique [0002] At present, gas water heaters sold on the market are mainly divided into two categories: antifreeze control methods and conventional gas water heaters. Among them, the antifreeze control method is mainly to add antifreeze heater components on the basis of conventional models. The antifreeze heater is connected in parallel to the system circuit. When the detected water flow temperature is lower than about 7°C, the antifreeze heater circuit is activated to heat the waterway. , When the temperature in the waterway reaches about 15°C, the circuit is disconnected to achieve the purpose of antifreezing. [0003] Conventional gas water heaters do not have any anti-freeze heating device, and the ambient temperature is relatively low, and the waterway cannot be heated when the user is not using it. ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): F24H9/20
CPCF24H9/2035
Inventor 李志敏吴桂安朱莲宗邓飞忠仇明贵潘叶江
Owner VATTI CORP LTD
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