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Water heater and its control method

A water heater and controller technology, applied in water heaters, indirect heat exchangers, fluid heaters, etc., can solve the problems of long time for hot water and uneven temperature of water, achieve fast heat exchange and improve user experience The effect of feeling, temperature uniformity

Active Publication Date: 2022-02-01
NINGBO FOTILE KITCHEN WARE CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] The technical problem to be solved by the present invention is to provide a water heater and its control method in order to overcome the shortcomings of the water heater in the prior art such as long hot water outlet time and uneven outlet temperature.

Method used

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  • Water heater and its control method
  • Water heater and its control method
  • Water heater and its control method

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0064] Such as figure 1 As shown, the water heater in this embodiment includes a controller 1 , a heat exchanger 2 and a first temperature sensor 3 .

[0065] Wherein, the heat exchanger 2 includes a main body structure 4, a first pipeline 5 and a second pipeline 6 that run through the main structure 4 and are independent of each other, the first pipeline 5 is arranged on the water outlet main pipeline of the water heater, and the second pipeline The channel 6 is used to store the buffer solution for heat exchange with the water flowing through the first pipeline 5 .

[0066] The first temperature sensor 3 is electrically connected to the controller 1, the first temperature sensor 3 is arranged at the water outlet end of the heat exchanger 2, and the first temperature sensor 3 is used to obtain the outlet water temperature and send it to the controller 1;

[0067] When the water heater is turned on for heating, the controller 1 is used to control the water heater to operate a...

Embodiment 2

[0099] Such as Figure 4 As shown, the water heater of this embodiment is a further improvement to Embodiment 1, specifically:

[0100] In order to achieve a better temperature control effect of the outlet water, a heating module 10 is arranged in the heat exchanger 2 , the heating module 10 is arranged in the second pipeline, and the heating module 10 is electrically connected to the controller 1 .

[0101] When the water is turned on again after stopping the water for a set period of time, the controller 1 is used to control the heating module 10 to start heating the buffer in the second pipeline when the temperature of the buffer is lower than the set temperature; When the set temperature is reached, the heating module 10 is controlled to stop heating the buffer solution in the second pipeline.

[0102] Through the setting of the heating device, the temperature of the buffer solution is always kept at the preset buffer solution temperature, so as to ensure that the user ca...

Embodiment 3

[0116] Such as Figure 6 As shown, the water heater of this embodiment is a further improvement to Embodiment 1 or 2, specifically:

[0117] The main structure of the heat exchanger 2 in this embodiment includes a cover plate 12 , a bottom plate 13 , a plurality of first metal sheets 14 and a plurality of second metal sheets 15 .

[0118] The first metal sheet 14 and the second metal sheet 15 are stacked between the cover plate 12 and the bottom plate 13, and the cover plate 12 is covered on the bottom plate 13; in an optional embodiment, the first metal sheet 14 and the second metal sheet The metal sheets 15 are sequentially stacked between the cover plate 12 and the bottom plate 13 .

[0119] The cover plate 12 is provided with a buffer solution inlet hole P1, a user water inlet hole P2 and a user water outlet hole P3;

[0120] Wherein, the surface of each first metal sheet 14 is provided with a buffer flow channel 16, and each buffer flow channel 16 is in communication wi...

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Abstract

The invention discloses a water heater and a control method thereof. The water heater includes a controller, a heat exchanger and a first temperature sensor; Set the temperature; wherein, when the outlet water temperature reaches the preset temperature, the temperature of the buffer is equal to the preset temperature; when the water is turned on again after stopping the water for a set period of time, the buffer in the second pipeline is used to convect the flow through the first A pipe of water for heat exchange. The invention realizes that when the user starts to use water again after stopping the water for a short time, the good heat exchange performance of the heat exchanger can be used to achieve a quick response, which can weaken the temperature fluctuation, and has the advantages of fast heat exchange speed and uniform temperature after heat exchange. This effectively avoids temperature changes caused by fluctuations in water flow and pressure, etc.; the temperature increases quickly when the water comes out for the first time, reducing the time for users to wait for hot water to come out, and effectively improving the user experience.

Description

technical field [0001] The invention relates to the technical field of water temperature control, in particular to a water heater and a control method thereof. Background technique [0002] The user temporarily suspends the water during the use of the water heater (such as washing hair, using shower gel), and there will be a large temperature change when the water comes out again. It is first necessary to consume part of the lower temperature water in the outer pipeline, and then consume warmer water. Fluctuations in gas pressure and water flow will also cause fluctuations in water temperature, and it will take a long time for the water temperature to return to the set value. Fluctuations in water temperature will reduce the user experience and may even burn the user. [0003] There is technology to add a water mixing device on the water outlet pipeline at present, and this device is made up of water inlet pipe, water outlet pipe and cavity container, and hot water can be m...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): F24H1/00F24H9/20F24H9/00F24H9/18F28D9/00F28F3/08
CPCF24H1/0027F24H9/2035F24H9/0005F24H9/1809F28D9/0043F28F3/086
Inventor 张陈诗黄启彬秦刚王瑞
Owner NINGBO FOTILE KITCHEN WARE CO LTD
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