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Constant temperature control system for gas water heater and constant temperature control method thereof

A gas water heater, constant temperature control technology, applied in fluid heaters, lighting and heating equipment, etc., can solve problems such as unstable constant temperature performance, and achieve the effect of reducing control algorithm requirements and improving constant temperature performance

Pending Publication Date: 2019-11-15
VATTI CORP LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0003] In view of this, the main purpose of the present invention is to provide a constant temperature control system for gas water heaters, which solves the problem of unstable constant temperature performance of existing gas water heaters when used in different regions

Method used

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  • Constant temperature control system for gas water heater and constant temperature control method thereof
  • Constant temperature control system for gas water heater and constant temperature control method thereof

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Embodiment 1

[0032] Embodiment 1 of the present invention provides a constant temperature control system for a gas water heater, which includes a controller 4 built in the gas water heater, a proportional valve assembly, a water flow detection assembly, an inlet water temperature detection assembly, and a The low-delay temperature sensor on the water outlet pipe; the controller, the proportional valve assembly, the water flow detection assembly, the inlet water temperature detection assembly and the low-delay temperature sensor are all connected to the controller respectively; wherein the water flow sensor is used to detect the water flow; The low-delay temperature sensor is used to collect the current outlet water temperature of the gas water heater, and send the temperature information to the controller;

[0033] The controller adjusts the proportional valve assembly according to the collected current water flow rate of the gas water heater, the current inlet water temperature and the cur...

Embodiment 2

[0043] Embodiment 2 of the present invention provides a constant temperature control system for a gas water heater. The system includes a controller 4 built in the gas water heater, a proportional valve assembly, a water flow detection assembly, an inlet water temperature detection assembly, and a The low-delay temperature sensor on the water outlet pipe; the controller, the proportional valve assembly, the water flow detection assembly, the inlet water temperature detection assembly and the low-delay temperature sensor are all connected to the controller respectively; wherein the water flow sensor is used to detect the water flow; The low-delay temperature sensor is used to collect the current outlet water temperature of the gas water heater, and send the temperature information to the controller;

[0044] After adopting the above scheme, by setting a low-lag temperature sensor in the gas water heater, the original control system of the gas water heater is changed from a high-...

Embodiment 3

[0054] Embodiment 3 of the present invention provides a method for constant temperature control of a gas water heater, the method comprising the following steps:

[0055] S1: Turn on the gas water heater, collect the current water flow, current inlet water temperature and current outlet water temperature;

[0056] S2: The gas water heater confirms its first input heat load value according to the preset water flow rate, current water flow rate, and current inlet water temperature, and then confirms the number of fire row and the gas flow rate according to the first input heat load value;

[0057] S3: The gas water heater confirms the change of the gas flow rate according to the temperature difference between the current outlet water temperature and the preset water outlet temperature, the temperature change rate and the first input heat load value of the gas water heater, and adjusts the gas flow rate;

[0058] S4: If the current water flow rate changes but the current inlet wa...

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Abstract

The invention discloses a constant temperature control system for a gas water heater, the system comprises a controller, a proportional valve assembly, a water flow detection assembly, a water inlet temperature detection assembly which are internally arranged in the gas water heater as well as a low delay temperature sensor arranged on a water outlet pipe in a water heater; the controller, the proportional valve assembly, the water flow detection assembly, the water inlet temperature detection assembly and the low delay temperature sensor are respectively connected with the controller; the lowdelay temperature sensor is used for collecting the water outlet temperature of the current gas water heater, and the temperature information is sent to the controller; the controller adjusts the proportional valve assembly according to the collected water flow of the current gas water heater, the current water inlet temperature, and the current water outlet temperature. The structure can changethe original control system of the gas water heater from a high hysteresis control system to a low hysteresis control system, so the control algorithm requirement of the system is reduced effectively;and meanwhile, the purposes of adaptability range and constant temperature performance improvement are achieved.

Description

technical field [0001] The invention belongs to the technical field of gas water heaters, and in particular relates to a constant temperature control system and a constant temperature control method of a gas water heater. Background technique [0002] With the improvement of users' requirements for the quality of life, the use of gas water heaters in different areas and areas is increasing; but due to the calorific value components in different areas, the calorific value in different seasons in the same area, and even different gas in the same area There are many differences in gas calorific value in companies, and the working environment of water heaters is more complicated. For example, different altitudes will affect the combustion conditions of water heaters; these states are often unknown, and the simple control algorithm will lead to constant temperature due to changes in the model time. Poor performance, especially when the gas pressure is low, leads to deterioration ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): F24H9/20
CPCF24H9/2035
Inventor 刘明雄潘叶江
Owner VATTI CORP LTD
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