Control method of gas water heater and gas water heater

A technology of a gas water heater and a control method, which is applied to water heaters, fluid heaters, lighting and heating equipment, etc., can solve problems such as inability to provide heat, and achieve the effects of being suitable for popularization and use, simple in structure, and remarkable in effect

Inactive Publication Date: 2017-10-10
QINGDAO ECONOMIC & TECHN DEV ZONE HAIER WATER HEATER
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

The reason for the above problems is that: when the gas water heater reaches the maximum heat load, if the inflow flow continues to increase, or the inflow temperature continues to decrea

Method used

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  • Control method of gas water heater and gas water heater
  • Control method of gas water heater and gas water heater
  • Control method of gas water heater and gas water heater

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0049] Such as figure 1 As shown, in this embodiment, the electric heater 3 includes a resistance wire disposed in the water inlet pipe 1 and / or wrapped outside the water inlet pipe 1 . The electric heater 3 includes a shifting device for adjusting its working gear, so as to automatically and / or manually adjust the working gear of the electric heater to realize the purpose of automatically adjusting the working mode of the electric heater, and then adjusting the outlet water temperature of the gas water heater.

[0050]In this embodiment, the water inlet pipe 1 is provided with an inlet water temperature sensor 4 for detecting the inlet water temperature, and the outlet pipe 2 is provided with an outlet water temperature sensor 5 for detecting the outlet water temperature. Preferably, the water inlet temperature sensor 4 is arranged on the water inlet pipe 1 downstream of the electric heater 3 to calculate the real-time heat load of the gas heating unit 10 by using the detecti...

Embodiment 2

[0064] The difference between this embodiment and the first embodiment above is that the electric heater 3 is a frequency-variable heater; preferably, an adjusting device for adjusting the input current and / or input voltage is provided between the electric heater 3 and the power supply , to adjust the input current and / or input voltage of the electric heater, so that the input power of the electric heater can increase or decrease linearly.

[0065] Such as image 3 As shown, in this embodiment, the working process of the gas water heater specifically includes the following steps,

[0066] 01), the gas water heater is turned on and powered on, and when a water flow is detected, the gas heating unit 10 starts to work;

[0067] 02), calculating the real-time heat load Qo of the gas heating unit 10;

[0068] 03), when the real-time heat load Qo reaches the maximum heat load value of the gas water heater, judge whether the outlet water temperature To reaches the set value Ts; if ...

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Abstract

The invention relates to a control method of a gas water heater and the gas water heater. The gas water heater comprises a gas heating unit. The gas heating unit communicates with a water inlet pipe and a water outlet pipe. An electric heater used for conducting fast heating on inlet water is arranged on the water inlet pipe. When the thermal load of the gas heating unit reaches the maximum value and the water outlet temperature does not reach the set value, the electric heater on the water inlet pipe is started to conduct fast heating on the inlet water, the operating power of the electric heater is adjusted according to the water outlet temperature detection value, and accordingly the water outlet temperature reaches the set value. Through the arrangement and the control method, the purposes that the electric heater is controlled, and auxiliary electric heating is conducted on water flowing through the water inlet are achieved, the water inlet temperature of the gas water heater is remarkably increased, the power of the gas water heater is improved, and the application environment of the gas water heater is broadened. Meanwhile, the gas water heater is simple in structure, the control method is concise, the effect is remarkable, and the control method of the gas water heater and the gas water heater are suitable for application and popularization.

Description

technical field [0001] The invention relates to the field of water heaters, in particular to a gas water heater, and in particular to a control method for a gas water heater in which electric heating assists in regulating the outlet water temperature. Background technique [0002] In the cold winter in the north, users must purchase gas water heaters with relatively large liters, otherwise the outlet water temperature will not meet the requirements due to insufficient heat load. The reason for the above problems is that: when the gas water heater reaches the maximum heat load, if the inflow flow continues to increase, or the inflow temperature continues to decrease, or the set temperature continues to rise, the gas heating unit of the gas water heater will be limited by the power. , will not be able to provide more heat to meet user requirements. [0003] In view of this, the present invention is proposed. Contents of the invention [0004] The object of the present inve...

Claims

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Application Information

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IPC IPC(8): F24H1/10F24H9/20F24H9/18
CPCF24H1/107F24H1/101F24H9/1818F24H9/1836F24H9/2014F24H9/2035
Inventor 杨玉敏王玉刚
Owner QINGDAO ECONOMIC & TECHN DEV ZONE HAIER WATER HEATER
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