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Zero-cold water gas water heater capable of limiting preheating temperature and control method of heater

A technology for gas water heaters and preheating temperature, which is applied to water heaters, fluid heaters, lighting and heating equipment, etc., and can solve the problem of high water storage temperature

Pending Publication Date: 2019-11-01
VATTI CORP LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] In order to solve the problem of excessively high water temperature in the circulation pipeline of the zero-cold water gas water heater, a zero-cold water gas water heater capable of limiting the preheating temperature of the water stored in the circulation pipeline is provided

Method used

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  • Zero-cold water gas water heater capable of limiting preheating temperature and control method of heater
  • Zero-cold water gas water heater capable of limiting preheating temperature and control method of heater
  • Zero-cold water gas water heater capable of limiting preheating temperature and control method of heater

Examples

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Effect test

Embodiment 1

[0047] This embodiment provides a zero cold water gas water heater with limited preheating temperature, such as Figure 1-Figure 2 As shown, it includes a zero-cold water gas water heater body 1, a built-in water pump 2, an outlet water temperature detection module 3, a return water temperature detection module 7, a gas control valve 4, an operation display module 5, and a controller 6;

[0048] The built-in water pump 2 is set on the water flow path in the zero-cold water gas water heater body 1, and the outlet water temperature detection module 3 for detecting the outlet water temperature is arranged at the water outlet end in the zero-cold water gas water heater body 1, and is used to detect the return water temperature of the return water The temperature detection module 7 is arranged on the water inlet end in the zero-cold water gas water heater body 1, and the gas control valve 4 for controlling gas on-off and gas flow is arranged on the air intake pipe in the zero-cold w...

Embodiment 2

[0068] This embodiment provides a control method for a zero-cooled gas water heater that limits the preheating temperature, such as Figure 4 Said, the method includes the following steps:

[0069] S1. Start the preheating mode of the zero cold water gas water heater body 1 by operating the preheating function key 52 of the display module 5, the controller 6 controls the operation of the built-in water pump 2, controls the gas control valve 4 to open, and the zero cold water water heater body 1 enters from the normal mode preheating mode;

[0070] S2. The controller 6 records the preset temperature T when the zero cold water gas water heater body 1 turns on the preheating mode 预设 , the return water temperature detection module 7 detects the return water temperature T 回水 , and the return water temperature T 回水 Send to controller 6;

[0071] S3, the controller 6 judges the preset temperature T 预设 Is it satisfied: T 预设 >T 预热max , where T 预热max is the maximum preheating t...

Embodiment 3

[0082] This embodiment provides a control method for a zero-cooled gas water heater with limited preheating temperature, the flow chart of which is as follows Figure 5 As shown, the method includes the following steps:

[0083] S1. Start the preheating mode of the zero cold water gas water heater body 1 by operating the preheating function key 52 of the display module 5, the controller 6 controls the operation of the built-in water pump 2, controls the gas control valve 4 to open, and the zero cold water water heater body 1 enters from the normal mode preheating mode;

[0084] S2. The controller 6 records the preset temperature T when the zero cold water gas water heater body 1 turns on the preheating mode 预设 , the return water temperature detection module 7 detects the return water temperature T 回水 , and the return water temperature T 回水 Send to controller 6;

[0085] S3, judging the preset temperature T 预设 Is it satisfied: T 预设 >T 预热max , where T 预热max is the maximu...

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Abstract

The invention discloses a zero-cold water gas water heater capable of limiting the preheating temperature. Thezero-cold water gas water heatercomprisesa zero-cold water gas water heater body, and further comprises a built-in water pump, an outlet water temperature detecting module, a return water temperature detecting module, a gas control valve and an operation display module which are electrically connected to a controller. The invention also discloses a control method of the zero-cold water gas water heater capable of limiting the preheating temperature. The control method comprises the following steps ofstarting a preheating mode; detecting a preset temperature T preset; determining whether the preset temperature T preset satisfies the condition that T preset is larger than T preheating max; if not, controlling the water storage temperature of a circulating pipeline according to the preset temperature T preset; and if yes, lowering the preset temperature T preset to a target preheating temperature T target, and controlling the water storage temperature of the circulating pipeline according to the target preheating temperature T target. The zero-cold water gas water heater and the control method thereof can solve the problem that the water storage temperature of the circulating pipeline of an existing zero-cold water gas water heater is too high.

Description

technical field [0001] The invention belongs to the technical field of zero cold water gas water heaters, and in particular relates to a zero cold water gas water heater with limited preheating temperature and a control method thereof. Background technique [0002] At present, the zero-cold water gas water heater has become a trend in the water heater industry because it can realize instant hot water. The water stored in the outlet pipe and the return pipe is pumped back to the zero cold water gas water heater for preheating, forming a circulation pipeline to realize preheating. [0003] During the preheating process, the zero cold water gas water heater adjusts the firepower according to the deviation between the outlet water temperature and the preset temperature, so that the outlet water temperature reaches the preset temperature. The preset temperature setting range of gas water heaters is generally 35°C to 60°C. When the preset temperature of the zero cold water gas w...

Claims

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Application Information

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IPC IPC(8): F24H1/14F24H9/20
CPCF24H1/145F24H9/2035
Inventor 郭灵华吴桂安谢志辉邓飞忠仇明贵潘叶江
Owner VATTI CORP LTD
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