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Quick constant-temperature control method for secondary water use 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 problems affecting the user's bathing experience, and achieve the effect of improving the bathing experience

Active Publication Date: 2020-03-24
VATTI CORP LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] During the bathing process, the user is used to turning off the water to make soap in the middle. When the water is re-boiled (that is, the secondary water), it needs to wait for the fan to be cleaned before the ignition. Water, and then a period of 3~5s of cold water flows out, affecting the user's bathing experience

Method used

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  • Quick constant-temperature control method for secondary water use of gas water heater
  • Quick constant-temperature control method for secondary water use of gas water heater
  • Quick constant-temperature control method for secondary water use of gas water heater

Examples

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Effect test

Embodiment 1

[0034] Such as figure 1 As shown, a method for rapid constant temperature control of the secondary water of a gas water heater in this embodiment, the gas water heater includes a controller, a memory module and a timing module, and the memory module and the timing module are respectively electrically connected to the controller. During the user's bathing process, when the gas water heater reaches a constant temperature state after normal ignition and combustion for the first time and before the user turns off the water halfway, the memory module memorizes the first heating load when the first normal ignition and combustion reaches a constant temperature state, and stores the stored load. The heating load for the first time is stored in the controller; when the user turns off the water halfway, the timing module records the end point of the first water use, and stores the recorded end point of the first water use in the controller.

[0035] Such as Figure 1-2 As shown, the co...

Embodiment 2

[0058] Such as Figure 4 As shown, the difference between this embodiment and Embodiment 1 is that the control method also includes step S3: judging whether the user's current water demand is the same as the previous water demand, and if so, enter step S4; After success, maintain the time t1 and then enter step S7.

[0059] Specifically, a water flow detection device is provided on the water inlet pipe of the gas water heater, and the water flow detection device is electrically connected with the controller for detecting the water flow rate of the water inlet pipe. Water demand includes preset target temperature and incoming water flow when starting the water heater. When the interval time △t≤preset time ts is determined, the water flow detection device samples the current water flow rate of the water inlet pipe, and the controller obtains the preset target temperature of the last water use and the water flow rate of the last water intake, and judges the current preset target...

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Abstract

The invention discloses a quick constant-temperature control method for secondary water use of a gas water heater, which comprises the following steps: S1, in the case of secondary water use of a user, the interval time deltat between a current water use point and a last water use end point is calculated; S2, whether the interval time deltat is smaller than or equal to preset time ts or not is judged; S4, a fan is started, and an air valve is opened; S5, the last heating load is obtained, the ignition load is calculated through the last heating load, ignition is conducted through the ignitionload obtained through calculation, and the maintaining time is t1 after ignition succeeds; S6, switching to use the last heating load or the sum of the last heating load and the adjusting load is conducted for combustion for a period of time t2; S7, the heating load is adjusted through a PID algorithm; S8, whether a constant-temperature state is reached or not is judged continuously, if so, the current heating load is memorized and the step S9 is carried out, if not, the step S7 is returned; and S9, combustion is maintained until a user turns off water. By means of the technical scheme, rapidignition heating can be achieved, and the user bath experience is improved.

Description

technical field [0001] The invention relates to the technical field of water heaters, in particular to a rapid constant temperature technology of water heaters. Background technique [0002] Existing gas water heaters are all constant temperature gas water heaters. When the user uses water, the gas water heater detects the water flow signal, first turns on the fan for pre-cleaning, exhausts the waste gas in the water heater through the smoke pipe, and turns on the gas after the wind pressure switch detects that it is closed. The valve is ignited and burned, and the water flows out through the water heater after being heated. It takes about 3-5 seconds from the time when the user boils the water to the ignition and combustion of the water heater. It usually takes 20-30 seconds when the user boils the water in the bath until the constant-temperature hot water flows out. [0003] During the bathing process, the user is used to turning off the water to make soap in the middle. ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): F24H9/20
CPCF24H9/2035
Inventor 郑来松卢克勤梁剑明潘叶江
Owner VATTI CORP LTD
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