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Automatic temperature control system of gas water heater

A gas water heater and gas technology, which is used in fluid heaters, adjusting fuel supply, combustion methods, etc., can solve problems such as user burns, inability to comply with safety regulations, and inability to achieve real-time adjustment, avoiding burns, reducing inventory and The effect of production costs

Inactive Publication Date: 2016-10-19
PTC PAUDEN SCI & TECHCAL CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The main reason is that the traditional technology uses whether the temperature sensed by the temperature sensor at the water outlet reaches the set temperature to control the gas flow, that is, when the user feels the water temperature is higher or lower than the preset temperature, the control device will start The gas flow will be adjusted so that the water temperature will be gradually adjusted to the default value after the outlet water temperature is too high or too low for a period of time, and the effect of real-time adjustment cannot be achieved
[0005] In addition, during the above process, if the water flow rate changes drastically due to the water pressure, especially if the water volume suddenly decreases sharply, and the temperature sensor at the outlet end senses that the temperature is too high, the heat exchanger has been burning for a period of time, so it is easy to Accidents in which users were scalded
Because of this, some countries further regulate that the outlet water temperature of the water heater cannot be higher than the set temperature by 10 degrees, and even must be accurately controlled to within 5 degrees. In this case, the traditional use of temperature sensors at the water inlet and outlet Controlled technology is bound to fail to comply with safety regulations
[0006] In view of this, the inventor has accumulated many years of research and practical experience in related fields, and specially created an automatic temperature control system applied to gas water heaters, which improves the need to install water inlet and outlet temperature sensors in existing gas water heaters, and The control device fails to adjust the gas flow in real time according to the water volume.

Method used

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  • Automatic temperature control system of gas water heater
  • Automatic temperature control system of gas water heater
  • Automatic temperature control system of gas water heater

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Embodiment Construction

[0027] Such as Figure 1-2 As shown, the present invention is an automatic temperature control system applied in a gas water heater, which can control the gas flow rate according to the water flow rate, so that the gas flow rate can heat the water flow to the selected temperature rise value selected by the user without additional installation Temperature sensor; the automatic temperature control system includes: a water flow sensor 1 capable of detecting water flow, a heat exchanger 2 capable of heating the water flow, a gas proportional regulating valve 3 for supplying the gas required for combustion of the heat exchanger 2, A variable potentiometer 4 for users to select temperature rise, and a control unit 5 capable of receiving signals from the variable potentiometer 4 and the water flow sensor 1 .

[0028] The control unit 5 includes a microcontroller 10, a power boost module 11 capable of boosting the voltage of the battery 6 of the water heater for the operation of the m...

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Abstract

The invention discloses an automatic temperature control system for a gas water heater, which precisely controls the temperature rise of the water flow by detecting the water flow and selecting the temperature rise by the user, which is different from the traditional technology of using a temperature sensor to control the water temperature. The system includes: a water flow sensor that can detect water flow, a pair of heat exchangers that heat up the water flow, a gas proportional regulating valve that supplies gas to the heat exchanger, a variable potentiometer for users to choose temperature rise, And a control unit that can receive the selected temperature rise and water flow and control the opening of the gas proportional regulating valve after calculation. The control unit makes the gas quantity supplied by the gas proportional regulating valve to the heat exchanger to heat the water flow to the level set by the variable potentiometer. The selected value of temperature rise avoids the problem of burns caused by instantaneous changes in water flow in traditional control methods.

Description

technical field [0001] The present invention is an automatic temperature control system applied to gas water heaters. It precisely controls the temperature rise of the water flow by detecting the water flow rate and selecting the temperature rise by the user. It is different from the traditional technology that uses the water inlet and outlet temperature sensors to control the temperature. water temperature. Background technique [0002] In order to meet the constant temperature requirements of general gas water heaters, its basic control system includes a control device, a heat exchanger, at least one gas valve, and two temperature sensors that detect the water temperature at the water inlet and water outlet respectively; First operate the control device to set a temperature value, when the user turns on the faucet, the water inlet temperature sensor senses the water inlet temperature, and then the control device controls the opening of the gas valve, so that the heat excha...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): F24H9/20F23N1/00
Inventor 黄俊诚
Owner PTC PAUDEN SCI & TECHCAL CO LTD
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