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Gas water heater and control method thereof

Technology of a gas water heater and control method

Active Publication Date: 2021-05-25
QINGDAO ECONOMIC & TECHN DEV ZONE HAIER WATER HEATER +1
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] However, since the opening of the proportional valve that controls the gas flow is a set fixed value during the fire transfer process, it is not possible to provide an appropriate heat demand output load in real time, resulting in an uncontrollable output load during the fire transfer process, which in turn leads to The constant temperature performance is uncontrollable, which affects the comfort of users

Method used

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  • Gas water heater and control method thereof
  • Gas water heater and control method thereof

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Embodiment Construction

[0044]In order to make the objects, technical solutions, and advantages of the present invention more clear, the technical solutions in the embodiments are clear and complete, and the following examples are intended to illustrate the invention. However, it is not intended to limit the scope of the invention.

[0045]In the description of the present invention, it is to be noted that the terms "top", "lower", "front", "post", "left", "right", "vertical", "within", "outside", etc. The orientation or positional relationship indicated is based on the orientation or positional relationship shown in the drawings, is merely intended to describe the present invention and simplified description, rather than indicating or implying that the device or component must have a specific orientation. Construct and operation, so it is not understood to be the limitation of the invention.

[0046]In the description of the present invention, it is to be described in that, unless otherwise expressly specified ...

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Abstract

The invention discloses a gas water heater and a control method thereof. The gas water heater is a sectional type gas water heater and at least comprises a first fire grate assembly and a second fire grate assembly, and the gas water heater further comprises a proportional valve for adjusting the gas supply amount as well as a first section valve and a second section valve communicating or closing gas entering the first fire grate assembly and the second fire grate assembly. The control method comprises the following steps: detecting that the change of heat demand; calculating a fire transfer point load caused by the change of the heat demand; and controlling the opening degree of the proportional valve to be adjusted to a valve switching point corresponding to the fire transfer point load. A fixed valve switching point during fire transfer is not set for the proportional valve, but a corresponding valve switching point suitable for the change of the heat demand is automatically calculated according to the heat demand, so that a controller controls a burner to be switched in different section modes, the temperature of the outlet water flow is more constant during switching, and meanwhile, the gas can be saved.

Description

Technical field[0001]The present invention belongs to the technical field of gas water heaters, and in particular, to a gas water heater and a control method thereof.Background technique[0002]The market share of gas water heaters is constantly improving, and users' demand for the safety and comfort of gas water heaters is increasing. At present, most of the combustor of gas water heaters is mostly installed with multiple roses, and the heat demand is brought into fire, and the heat demand is large when the hot demand is large.[0003]For example, in general, the industry is divided into three-segment, four segments, five-degree combustion segment type. When the heat demand is different, it is necessary to incur a different segmental burning, it will involve a fire control problem. Taking three segments as an example, the three segment segment valves are controlled by two relays, with three working modes: a working mode, two-stage working model and full-stage working mode, and the thre...

Claims

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Application Information

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IPC IPC(8): F24H9/20
CPCF24H9/2035
Inventor 刘绪强闫乃锋许巧丽
Owner QINGDAO ECONOMIC & TECHN DEV ZONE HAIER WATER HEATER
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