Wall-mounted gas boiler water temperature control method and system

A water temperature control method and gas wall-hung boiler technology, which are applied to lighting and heating equipment, fluid heaters, etc., can solve problems such as temperature fluctuations, water temperature fluctuations, and inaccurate temperature control, and reduce temperature fluctuations and water temperature fluctuations Amplitude and stabilization time, effect of improving water comfort

Inactive Publication Date: 2017-12-29
GREE ELECTRIC APPLIANCES INC
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  • Abstract
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Problems solved by technology

However, when the temperature difference requirements are the same, the heat required under different water flows is different, which causes certain temperature fluctuations when traditional wall-hung boilers use hot water under different water flows for different users, and it takes a long time to reach stable set temperature
Once the water flow fluctuates during use, it will cause the water temperature to fluctuate again.
[0004] Because the traditional gas wall-hung boiler can only adjust the gas proportional valve according to the temperature difference between the actual water temperature and the set water temperature, coupled with the hysteresis of the water temperature detection and the hysteresis of the proportional valve adjustment, it is often when the proportional valve opening changes accordingly. When the actual working conditions have changed to other conditions, resulting in inaccurate temperature control

Method used

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  • Wall-mounted gas boiler water temperature control method and system
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  • Wall-mounted gas boiler water temperature control method and system

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Embodiment 1

[0026] Such as figure 1 As shown, in Embodiment 1 of the present invention, a method for controlling the water temperature of a gas-fired wall-hung boiler is provided, which includes steps S1-S3. Each will be described below.

[0027] Step S1, water flow detection: detect the current water flow, and judge whether the user uses water according to the current water flow.

[0028] It should be noted that, for gas wall-hung boilers, it is judged whether the user is using water by the water flow rate. When the detected current water flow rate reaches the set threshold, it means that the user is using water, and the gas proportional valve needs to be adjusted. The opening can be adjusted to meet the water demand of users.

[0029] Step S2, water temperature detection: when it is detected that the user is using water, the current water temperature is detected, and the temperature difference between the current water temperature and the user's target water temperature is calculated....

Embodiment 2

[0036] Such as image 3 As shown, in Embodiment 2 of the present invention, a water temperature control system for a gas wall-hung boiler is provided, which includes a water temperature detection unit 1 , a water flow detection unit 2 , a gas proportional valve 3 and a controller 4 .

[0037] The water temperature detection unit 1 is used to detect the current water temperature in the gas wall-hung boiler and send the detected water temperature to the controller 4 . The water flow detection unit 2 is used to detect the current water flow and send the detected water flow to the controller 4 . The gas proportional valve 3 is used to adjust the gas intake amount. The controller 4 is used to calculate the temperature difference between the current water temperature and the target water temperature set by the user, and adjust the opening degree of the gas proportional valve according to the temperature difference and the current water flow.

[0038] The controller 4 presets an ad...

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Abstract

The invention discloses a wall-mounted gas boiler water temperature control method which comprises the water flow rate detecting step, the water temperature detecting step and the gas proportional valve adjusting step. In the water flow rate detecting step, detecting the current water flow rate and judging whether a user uses water according to the current water flow rate; in the water temperature detecting step, detecting the current water temperature when the user is detected to use water and calculating the temperature difference between the current water temperature and the target water temperature of the user; and in the gas proportional valve adjusting step, adjusting the opening of the gas proportional valve according to the temperature difference and the current water flow rate. The wall-mounted gas boiler water temperature control method has the advantage of precise temperature control. The invention further discloses a wall-mounted gas boiler water temperature control system.

Description

technical field [0001] The invention relates to the field of gas wall-hung boilers, in particular to a method and system for controlling the water temperature of a gas wall-hung boiler. Background technique [0002] Wall-hung boilers can be divided into single heating type and heating and hot water dual-purpose type according to the functional scope. [0003] For the dual-purpose gas wall-hung boiler, the comfort of domestic hot water is very important, the stability of the water temperature, the rapid hot water and other functions all involve the control of the water temperature. The traditional gas wall-hung boiler is based on the actual water temperature detected by the sensor. And set the water temperature to control the opening of the proportional valve, so as to regulate the water temperature. However, when the temperature difference requirements are the same, the heat required under different water flows is different, which causes certain temperature fluctuations whe...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): F24H9/20
CPCF24H9/2035
Inventor 康道远梁桂源张霞
Owner GREE ELECTRIC APPLIANCES INC
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