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Gas water heater and control method

A technology of a gas water heater and a control method, which is applied to chemical instruments and methods, water heaters, fluid heaters, etc., and can solve problems such as serious corrosion and ineffective protection of heat exchanger 02, so as to reduce attenuation and increase service life Effect

Active Publication Date: 2019-01-04
GUANGDONG HISENSE HOME APPLIANCES CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] However, the water heaters in the prior art are only for providing healthier domestic water, and the protection effect on the heat exchanger 02 is not obvious
Especially when the water heater is on standby, the water stored in the heat exchanger 02 for a long time will seriously corrode the heat exchanger 02

Method used

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  • Gas water heater and control method
  • Gas water heater and control method

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0028] Such as figure 1 As shown, the bath water inlet branch 21 is provided with an inlet valve 7 that opens or closes the bath water inlet branch 21. The water storage filter 6 includes a high-pressure pump 61 and a reverse osmosis filter 62 connected in sequence; a drainage branch A drain valve 8 for opening or closing the drain branch 32 is provided in the road 32.

[0029] Since the water storage filter 6 includes a high-pressure pump 61 and a reverse osmosis filter 62 that are connected in sequence, the reverse osmosis filter 62 can only start working when the high-pressure pump 61 is started. Therefore, it can be directly set in the bath water inlet branch 21 to open Or close the water inlet valve 7 of the bath water inlet branch 21. When the gas water heater is working, refer to Figure 4 , The bathing water outlet branch 31 is opened by the user. At this time, the water inlet valve 7 can be controlled to open the bathing water inlet branch 21, the drain valve 8 closes th...

Embodiment 2

[0038] Such as Figure 5 As shown, the front ends of the bathing water inlet branch 21 and the storage purification branch 22 are both connected to the inlet switching valve 7'. The inlet switching valve 7'can make the water flow from the bathing water inlet branch 21 and the storage purification Any one of the branch roads 22 passes; the front ends of the bathing water outlet branch road 31 and the drainage branch road 32 are both connected with the outlet switching valve 8', and the outlet switching valve 8'can make the water flow from the bathing water outlet branch road 31 and the drainage branch road. Any one of 32 passes.

[0039] The water flow path can be directly controlled by the inlet switch valve 7'and the outlet switch valve 8'. When the gas water heater is working, the inlet switch valve 7'will switch the inlet water to the bath water inlet branch 21 and the outlet switch valve 8' The outlet water is switched to the bath water outlet branch 31, and then, the tap wa...

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Abstract

The invention discloses a gas water heater and a control method, and relates to the technical field of fluid heat exchangers. According to different needs, different purification functions can be switched, water is healthy, and the phenomenon that a heat exchanger is corroded, and water is leaked can be effectively prevented. The gas water heater comprises a shell, a heat exchanger, a water inletpipe and a water outlet pipe are arranged in the shell, the water inlet pipe comprises a bathing water inlet branch and a storage water purification branch which are connected in parallel, a bathing water purifier used for purifying bathing water is arranged in the bathing water inlet branch in a communication manner, a storage water filter used for filtering water passing through the storage water purification branch into weak acid water is arranged in the storage water purification branch, and the water outlet pipe comprises a bathing water outlet branch and a draining branch which are connected in parallel. When the gas water heater works, water enters in the bathing water inlet branch of the water inlet pipe, water is output through the bathing water outlet branch of the water outlet pipe, and after the gas water heater finishes work, water enters the storage water purification branch of the water inlet pipe, and the draining branch of the water outlet pipe drains water so as to replace water in the heat exchanger. The gas water heater is used for preparing hot water.

Description

Technical field [0001] The invention relates to the technical field of fluid heat exchangers, in particular to a gas water heater and a control method. Background technique [0002] Gas water heater, also known as gas water heater, refers to a gas appliance that uses gas as fuel and transfers heat to the cold water flowing through the heat exchanger through combustion heating to achieve the purpose of preparing hot water. According to survey feedback, gas water heaters often leak water after being used for a period of time (usually about one year). After investigation, it is due to the different quality of tap water in different areas, especially the poor quality of tap water in some areas, which is alkaline. The tap water contains a large amount of chloride ions, sulfate ions and bicarbonate, which chemically react with the copper heat exchanger to produce Pitting corrosion has caused the gas water heater to leak. Therefore, to solve the above problems, it is necessary to cons...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): F24H1/10F24H9/18F24H9/20C02F9/02
CPCC02F1/001C02F1/441C02F2301/066F24H1/107F24H9/1836F24H9/2035
Inventor 苏铭森张慧宝
Owner GUANGDONG HISENSE HOME APPLIANCES CO LTD