Water flow control method and gas water heater

A technology of gas water heater and control method, which is applied in the directions of fluid heaters, lighting and heating equipment, etc., can solve the problems of small water flow, fluctuating water temperature, and inability to meet user bathing requirements, etc.

Active Publication Date: 2018-04-17
QINGDAO ECONOMIC & TECHN DEV ZONE HAIER WATER HEATER +2
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0002] At present, in daily life, there is generally insufficient water supply, which cannot meet the bathing requirements of users, especially during the peak water consumption period, and there will also be insufficient water supply in cities. Insufficient water supply pressure often causes gas water heaters to fail to start, or after starting The water flow is small, which will affect the user's use
[0003] In addition, sometimes the water flow fluctuates greatly, and the water volume rises during bathing, resulting in low water temperature, which cannot meet the bathin...

Method used

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  • Water flow control method and gas water heater
  • Water flow control method and gas water heater
  • Water flow control method and gas water heater

Examples

Experimental program
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Effect test

Embodiment 1

[0050] Such as figure 1 As shown, this embodiment provides a water flow control method, which is applied to a gas water heater, and the steps include:

[0051] S1, obtaining the inflow flow detected by the water flow sensor;

[0052] S2, calculating the water supply flow range A, and judging whether the influent water flow is within the water supply flow range A, if the judging result is yes, the water pump will not start, and if the judging result is no, go to step S3;

[0053] S3, start the water pump, and use the water pump to adjust the inflow flow to the range A of the water supply flow.

[0054] Wherein, the water flow sensor of the present invention selects a Hall element.

[0055] In the above technical solution, the water flow sensor is set at the water inlet. When the user turns on the gas water heater, the water flow will enter from the water inlet, and the water flow sensor will detect the water inlet flow in real time. When the water inlet flow is less than the wa...

Embodiment 2

[0082] Such as Figure 4 As shown, this embodiment proposes a gas water heater that utilizes a water pump 1 to adjust water flow, using the water flow control method described in the first embodiment above, including: a water pump 1, a water flow sensor 2 and a controller 4, the control The controller 4 is connected to the water pump 1 and the water flow sensor 2 respectively, the water flow sensor 2 is arranged at the water outlet end of the water pump 1, and the controller 4 can control the water pump 1 according to the inflow flow detected by the water flow sensor 2, Then adjust the inflow flow to the water supply flow range A.

[0083] Preferably, the water pump 1 is provided with a water valve switch and / or a rotating motor, and the inflow flow is adjusted by adjusting the opening of the water valve switch and / or the rotating speed of the rotating motor; preferably, the water outlet of the water pump 1 A pressure sensor is also provided to detect the flow rate of the inf...

Embodiment 3

[0089] Such as Figure 5 As shown, in this embodiment, a water pump 1 and a water flow sensor 2 are installed inside the gas water heater.

[0090] When the gas water heater is turned on, the water flow sensor 2 detects that the water flow is less than 1L / min (ie, the danger threshold), the gas water heater will be turned off to prevent the situation from getting worse due to water leakage in the pipeline.

[0091] When the water flow sensor 2 detects that the water volume is greater than 1L / min and less than 4L / min (that is, greater than the danger threshold and less than the minimum value a-b of the water supply flow range A), the gas water heater with a small water volume cannot work or can work but cannot meet the requirements of bath water. Flow requirements, when the water pump 1 is started at this time, it will provide a large water pressure and water flow to the gas water heater to meet the water demand of the user, and the water replenishment amount of the water pump ...

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Abstract

The invention discloses a water flow control method and a gas water heater, wherein the water flow control method comprises the steps that Step 1, inlet flow detected by a water flow sensor is obtained; Step 2, a water supply flow range A is calculated to determine whether the inlet flow is within the water supply flow range A; if a judgment result is yes, a water pump is not started; if the judgment result is no, process proceeds to Step 3; Step 3, the water pump is started, and the inlet flow is adjusted to the water supply flow range A by the water pump. According to the gas water heater, the inlet flow is adjusted to the water supply flow range required by users through the water pump, so that user requirements of a water temperature can be fulfilled when water flows out of a water outlet of the gas water heater regardless of a water pressure at a water inlet, thereby avoiding the problem that the water temperature at the water outlet of the gas water heater always changes along with the inlet flow and further increasing the usage requirements of users.

Description

technical field [0001] The invention belongs to the field of water heaters, and in particular relates to a water flow control method and a gas water heater. Background technique [0002] At present, in daily life, there is generally insufficient water supply, which cannot meet the bathing requirements of users, especially during the peak water consumption period, and there will also be insufficient water supply in cities. Insufficient water supply pressure often causes gas water heaters to fail to start, or after starting If the water flow is small, it will affect the user's use. [0003] In addition, sometimes the water flow fluctuates greatly, and the water volume rises during bathing, resulting in low water temperature, which cannot meet the bathing needs of users. [0004] Although the gas water heaters currently on the market can be started at low water pressure, the water flow is too small to meet the requirements for bathing. In this case, a water-gas linkage valve i...

Claims

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Application Information

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IPC IPC(8): F24H9/20
CPCF24H9/2035
Inventor 郑涛李键许福海
Owner QINGDAO ECONOMIC & TECHN DEV ZONE HAIER WATER HEATER
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