A gas water heater and its automatic drainage antifreeze method

A gas water heater and automatic drainage technology, applied in water heaters, fluid heaters, lighting and heating equipment, etc., can solve the problems of unsatisfactory drainage effect, incomplete drainage, and low drainage efficiency, and achieve good drainage effect and reduce The effect of water temperature rise and high reliability

Active Publication Date: 2018-01-23
GUANGDONG MACRO GAS APPLIANCE
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

These existing automatic drainage and antifreeze devices have incomplete drainage and low drainage efficiency, which lead to unsatisfactory drainage effects, and can only perform automatic drainage. After the remaining water is emptied, a special reset operation is often required to ensure that the gas water heater is running smoothly. It can work normally at the first startup, causing inconvenience to users

Method used

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  • A gas water heater and its automatic drainage antifreeze method
  • A gas water heater and its automatic drainage antifreeze method

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Embodiment Construction

[0027] In order to facilitate those of ordinary skill in the art to better understand the essence of the present invention, the specific implementation manners of the present invention will be described in detail below in conjunction with the accompanying drawings.

[0028] like figure 1 As shown, a gas water heater includes: a heat exchanger 1, and a water inlet pipe 2, an outlet pipe 3 and a drain pipe 4 connected to the heat exchanger 1; A temperature sensor 5 is provided; a water flow sensor 6 and a three-way valve 7 are connected in series on the water inlet pipe 2 according to the water inlet direction, and the drain pipe 3 is connected to the bypass port of the three-way valve 7; There is a one-way valve 8; a branch pipe 9 is connected between the water outlet of the heat exchanger 1 and the water outlet of the three-way valve 7, and a stop valve 10 is arranged on the branch pipe 9; the water outlet of the one-way valve 8 Branch pipe two 11 is connected between the wat...

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Abstract

The invention discloses a gas water heater, comprising: a heat exchanger, and a water inlet pipe, an outlet pipe and a drain pipe connected to the heat exchanger; A water flow sensor and a three-way valve are connected in series on the water inlet pipe in sequence according to the water inlet direction, and the drain pipe is connected to the bypass port of the three-way valve; a one-way valve is provided on the water outlet pipe; A branch pipe 1 is connected with the water outlet of the three-way valve, and a stop valve is arranged on the branch pipe 1; a branch pipe 2 is connected between the water outlet of the one-way valve 1 and the water inlet of the three-way valve. Compared with the prior art, the gas water heater provided by the present invention has the functions of automatic drainage and anti-freezing at low temperature, automatic reset and opening with water. The present invention also provides an automatic drainage antifreeze method based on the gas water heater.

Description

technical field [0001] The invention relates to the technical field of fluid heaters, in particular to a gas water heater and an automatic drainage antifreeze method thereof. Background technique [0002] After the gas water heater is used, there is usually residual water in the heat exchanger, water inlet pipe and outlet pipe. When the temperature is low in winter, the residual water is easy to freeze and cause the pipe to burst. In order to prevent the pipeline from freezing and bursting, the most effective method at present is to drain and prevent freezing. There are two drainage methods: manual and automatic. Manual drainage is cumbersome to operate and prone to omission of drainage; automatic drainage is realized through sensors and controllers, and has a high degree of intelligence. These existing automatic drainage antifreeze devices have problems such as incomplete drainage and low drainage efficiency, which lead to unsatisfactory drainage effects, and only automati...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): F24H1/10F24H9/20F24H9/16
Inventor 余少言仇明贵刘兵陈国杨永良
Owner GUANGDONG MACRO GAS APPLIANCE
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