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Control method for forcible-discharge gas water heater

A gas water heater and control method technology, which is applied to fluid heaters, lighting and heating equipment, etc., can solve the problems of electric heating antifreeze failure, user losses, etc., and achieve the effects of preventing freeze cracking, safe use, and antifreeze effect.

Active Publication Date: 2019-02-05
GUANGDONG VANWARD NEW ELECTRIC CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Since the electric heating component is not controlled by the main control board, but only by the thermostat, the user does not know when the electric heating component or the thermostat is faulty, and will only find out that the electric heating antifreeze fails after the water heater freezes the house and soaks the water. causing great loss to users

Method used

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  • Control method for forcible-discharge gas water heater
  • Control method for forcible-discharge gas water heater
  • Control method for forcible-discharge gas water heater

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0031] Such as figure 1 and image 3 As shown, after the gas water heater is powered on, the gas water heater enters the standby program, and the first temperature sensor and the second temperature sensor start to detect the temperature of the measured object respectively, and feed back the temperature data to the controller in real time;

[0032] When the first temperature sensor detects that the temperature on the heat exchanger is lower than the program setting value A, if the second temperature sensor detects that the outlet water temperature of the outlet pipe is higher than the program setting value C, the controller starts the fan and passes The fan speed sensor judges the blockage of the smoke exhaust channel:

[0033] Situation 1: When the controller judges that the smoke exhaust channel is not blocked according to the signal fed back by the fan speed sensor, the controller controls the fan to run at the set first speed S1. After the fan runs within the set time T1, ...

Embodiment 2

[0040] Such as figure 2 and image 3 As shown, after the gas water heater is powered on, the gas water heater enters the standby program, and the first temperature sensor starts to detect the temperature of the measured object, and feeds back the temperature data to the controller in real time;

[0041] When the first temperature sensor detects that the temperature on the heat exchanger is lower than the program setting value A, the controller starts the fan and the electric heating component at the same time, and judges the blockage of the smoke exhaust channel through the fan speed sensor:

[0042] Situation 1: When the controller judges that the smoke exhaust channel is not blocked according to the signal fed back by the fan speed sensor, the controller controls the fan to run at the set first speed S1. After the fan runs within the set time T1, if the first temperature When the sensor detects that the temperature on the heat exchanger is higher than the program setting v...

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Abstract

The invention provides a control method for a forcible-discharge gas water heater. The control method for the forcible-discharge gas water heater comprises the following steps: a temperature in a heatexchanger is detected through a first temperature sensor, and temperature data is fed back to a controller in real time; when the first temperature sensor detects that the temperature in the heat exchanger is lower than a set value of a program, the controller starts a fan or an electric heating assembly, or starts the fan and the electric heating assembly sequentially, or starts the fan and theelectric heating assembly simultaneously, the fan discharges cold air in the vicinity of the heat exchanger from a smoke discharge channel, and the electric heating assembly heats the heat exchanger;after the fan and the electric heating assembly runs in a set time, if the first temperature sensor detects that the temperature in the heat exchanger is higher than the set value of the program, thecontroller turns off the fan and the electric heating assembly, and the gas water heater enters a standby state again; and if the first temperature sensor detects that the temperature in the heat exchanger is still lower than the set value of the program, the controller turns off the fan and the electric heating assembly, and starts a freezing alarm program.

Description

technical field [0001] The invention belongs to the technical field of gas water heaters, and in particular relates to a control method for a forced exhaust gas water heater. Background technique [0002] In the northern region, the winter is cold and long, the wind is generally strong, and the outdoor temperature is low at night. Since the exhaust pipe of the forced-exhaust gas water heater leads to the outside, cold outdoor air can easily enter the heat exchanger through the exhaust pipe. The residual water in the heat exchanger freezes when it is lower than 0°C, causing the heat exchanger pipes to burst. Most of the existing gas water heaters use electric heating to prevent freezing, and the electric heating components are directly connected to the power line. When the temperature drops to the set temperature, the thermostat turns on the electric heating component to start heating, and when the temperature of the thermostat rises to the set temperature, the thermostat i...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): F24H9/20
CPCF24H9/2035
Inventor 卢宇聪潘同基李罗标
Owner GUANGDONG VANWARD NEW ELECTRIC CO LTD
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