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Gas water heater and constant temperature control method and device of gas water heater

A gas water heater and constant temperature control technology, which is applied to fluid heaters, lighting and heating equipment, etc., can solve the problems of large start-up overshoot and long constant temperature time of gas water heaters, and achieve the effect of avoiding large start-up overshoot and improving constant temperature performance

Active Publication Date: 2015-06-24
WUHU MIDEA SMART KITCHEN APPLIANCE MFG CO LTD
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  • Abstract
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Problems solved by technology

[0005] Therefore, an object of the present invention is to propose a constant temperature control method for a gas water heater, which solves the problems of large overshoot and long constant temperature time when the gas water heater is started, and at the same time improves the constant temperature performance of the gas water heater

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  • Gas water heater and constant temperature control method and device of gas water heater
  • Gas water heater and constant temperature control method and device of gas water heater
  • Gas water heater and constant temperature control method and device of gas water heater

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Embodiment Construction

[0030] Embodiments of the present invention are described in detail below, examples of which are shown in the drawings, wherein the same or similar reference numerals designate the same or similar elements or elements having the same or similar functions throughout. The embodiments described below by referring to the figures are exemplary only for explaining the present invention and should not be construed as limiting the present invention.

[0031] The following disclosure provides many different embodiments or examples for implementing different structures of the present invention. To simplify the disclosure of the present invention, components and arrangements of specific examples are described below. Of course, they are only examples and are not intended to limit the invention. Furthermore, the present invention may repeat reference numerals and / or letters in different instances. This repetition is for the purpose of simplicity and clarity and does not in itself indicat...

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Abstract

The invention provides a constant temperature control method of a gas water heater. The method comprises the following steps that the inlet water temperature and the inlet water flow of the gas water heater are detected; the thermal load needed for heating inlet water to a set temperature from the inlet water temperature of the gas water heater is calculated according to the inlet water temperature, the inlet water flow and the set temperature; the opening degree of a gas valve of the gas water heater is adjusted according to the thermal load so that the outlet water temperature of the gas water heater can be consistent with the set temperature. The constant temperature control method solves the problems that an existing gas water heater is large in starting overshoot and long in constant temperature time, and improves the constant temperature performance of the gas water heater. The invention further provides a constant temperature control device of the gas water heater and the gas water heater.

Description

technical field [0001] The invention relates to the technical field of water heaters, in particular to a constant temperature control method for a gas water heater, a constant temperature control device for a gas water heater and a gas water heater. Background technique [0002] At present, most of the common gas water heaters use the outlet water temperature detected 2 seconds before ignition as the inlet water temperature to participate in the constant temperature calculation. This control method has relatively small error when the time interval between two start-ups of the gas water heater is long, but when When the time interval between the two openings of the gas water heater is short, the temperature detection of the inlet water will be inaccurate due to the influence of the residual temperature of the gas water heater, which will eventually lead to poor constant temperature performance of the gas water heater. [0003] Moreover, since the inlet water temperature canno...

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Application Information

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IPC IPC(8): F24H9/20
Inventor 隆玉平李光华梁国荣唐晓峨
Owner WUHU MIDEA SMART KITCHEN APPLIANCE MFG CO LTD
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