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Gas-fired water heating equipment with pre-heating function

A gas-fired hot water and equipment technology, applied in lighting and heating equipment, heating fuel, residential hot water supply system, etc., can solve the problems of waste of water resources, poor user experience, etc.

Inactive Publication Date: 2016-02-03
VAILLANT WUXI HEATING EQUIP
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Obviously, a large amount of cold water discharged causes a waste of water resources. In addition, it will also cause a relatively poor experience for users. For example, when taking a bath in cold winter, users have to wait for a while before using hot water.

Method used

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  • Gas-fired water heating equipment with pre-heating function

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Embodiment Construction

[0016] The present invention will be described in detail below in conjunction with various embodiments shown in the drawings. However, these embodiments do not limit the present invention, and any structural, method, or functional changes made by those skilled in the art according to these embodiments are included in the protection scope of the present invention.

[0017] Gas hot water equipment uses combustible gas as fuel, such as natural gas, city gas, liquefied petroleum gas, biogas, etc., to heat domestic water by burning combustible gas to meet the needs of users. For example, gas water heaters that provide domestic hot water, can At the same time, it provides domestic hot water and gas boilers for heating needs. Next, a gas water heater is taken as an example to illustrate the gas water heater of the present invention.

[0018] Such as figure 1 As shown, the gas water heater 1 may include a casing 10, a burner 11 housed in the casing, a heat exchanger 13, a smoke coll...

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Abstract

The invention provides gas-fired water heating equipment. The gas-fired water heating equipment comprises an outer shell, a combustor, a heat exchanger and a water path assembly, wherein the combustor, the heat exchanger and the water path assembly are arranged in the outer shell. The water path assembly comprises a water inlet pipeline and a water outlet pipeline located on the upper stream and the down stream of the heat exchanger respectively, wherein a water tank is arranged on the water outlet pipeline, and an electric heating device is further arranged in the water tank. The water path assembly further comprises a circulation pipe section connected with a water inlet pipe section of the water inlet pipeline in parallel, and the circulation pipe section is further provided with a circulation water pump. As the circulation water pump is arranged, cold water accumulated in the water tank and a water pipe of the gas-fired water heating equipment is preheated circularly, and a user can immediately obtain hot water when opening a faucet.

Description

technical field [0001] The invention relates to the field of household gas equipment, in particular to a waterway system of gas hot water equipment. Background technique [0002] When using gas hot water equipment, such as a gas water heater, it often takes a long time to turn on the hot water tap before hot water flows out. This is because, on the one hand, there is a large amount of cold water in the water pipes inside and outside the equipment, especially for some gas water heaters with built-in water tanks, there is a lot of cold water stored in the water tank itself, so these The cold water must be drained before hot water comes out; on the other hand, when the gas water heater is started, it will not be ignited and heated immediately. Usually, for safety reasons, the fan inside the gas water heater must clean the combustion chamber and the exhaust pipe beforehand. Make sure that the combustion chamber and the exhaust pipe are replaced with fresh air before igniting. D...

Claims

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Application Information

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IPC IPC(8): F24H1/12F24H9/00F24H9/20
CPCF24H1/41F24H9/0084F24H9/2035F24D17/0026F24D17/0078F24D2200/04F24D2200/08F24H9/2028F24H15/486F24H15/36F24H15/414F24H15/174F24H15/215F24H15/281F24H15/335F24H15/238
Inventor 陈莉莉程文杰王河廷张海艳
Owner VAILLANT WUXI HEATING EQUIP
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