CFD (Computational Fluid Dynamics)-based intelligent water-saving bathtub and design method thereof

Abstract

The invention discloses a CFD-based intelligent water-saving bathtub which comprises a bathtub main body and a temperature and water control device, wherein the temperature and water control device comprises a cold water pipeline, a hot water pipeline, a first flow temperature sensor, a second flow temperature sensor, a first electric valve, a second electric valve, a three-way connector, a water outlet pipeline, a controller and at least two temperature sensors; a first port of the three-way connector is connected with the cold water pipeline; a second port of the three-way connector is connected with the hot water pipeline; and a third port of the three-way connector is connected with the water outlet pipeline. According to the bathtub disclosed by the invention, an orthogonal experiment is performed by sequentially changing the water supply position, the water supply rate and the water supply temperature based on the CFD theory, the water temperature curve is subjected to comparative analysis, and finally, the CFD-based intelligent water-saving bathtub is obtained, so that the problems in the prior art such as high water and heat consumption and low utilization rate are solved, the defects such as lack of temperature control are overcome, the bathing comfort is improved, and water and heat resources are saved.

Description

technical field [0001] The invention relates to a CFD-based intelligent water-saving bathtub and a design method thereof, belonging to the technical field of energy saving. Background technique [0002] At present, most bathtubs use manual mixing valves to adjust the water temperature and flow, but the adjustment of water temperature and flow through manual mixing valves is not stable, and it is difficult to adjust to a suitable temperature. When the temperature of hot water continues to drop or the water pressure When a change occurs, the only way to keep the water temperature is to constantly adjust the ratio of the mixing water valve, which is very troublesome and inconvenient, and it is difficult to achieve the purpose of constant temperature. [0003] In addition, at present, most bathtubs are designed without considering the influence of water supply location on water temperature distribution. After a period of bathing, different positions in the bathtub will have temp...

AI Technical Summary

Problems solved by technology

[0002] At present, most bathtubs use manual mixing valves to adjust the water temperature and flow, but the adjustment of water temperature and flow through manual mixing valves is not stable, and it is difficult to adjust to a suitable temperature. When the temperature of hot water continues to drop or the water pressure When there is a change, the only way to maintain the water temperature is to constantly adjust the ratio of the mixing water valve, which is very troublesome and inconvenient, and it is difficult to achieve the purpose of constant temperature

[0003] In addition, the design of most bathtubs does not take into account the influence of the water supply position on the water temperature distribution. After a period of bathing, different positions in the bathtub will have temperature differences, resulting in uneven cooling and heating, and poor bathing comfort.

[0004] Furthermore, hot water with a higher temperature is usually added before bathing, and the higher the temperature, the faster the heat will be dissipated, resulting in waste of heat.

The water temperature keeps dropping during the bathing process. If you want to maintain the temperature, you need to open the valve frequently to replenish hot water, and you need to get up frequently to operate the valve, especially in cold weather, which not only reduces the comfort of bathing, but also increases the danger of burns and slipping.

[0005] In addition, it takes a long time to add hot water before bathing, and it is necessary to manually adjust the water mixing valve to control the water temperature in the bathtub. Continuous intervention by the user is required to adjust the appropriate water volume and temperature before starting bathing

[0006] In view of this, a CFD-based intelligent water-saving bathtub and its design method are designed to solve the problems of large water and heat consumption and low utilization rate in the prior art, and at the same time improve bathing comfort and save water and heat resources

Images