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Instant heating type water temperature adjustment method and device

A technology of water temperature regulation and instant heating, which is applied in control/regulation systems, non-electric variable control, instruments, etc. It can solve problems such as high coil heating temperature, unsustainable work, and poor water pumps, so as to increase working life and power consumption. Efficiency improvement and noise reduction effects

Active Publication Date: 2013-12-25
东莞市唯成节能科技有限公司
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  • Application Information

AI Technical Summary

Problems solved by technology

In the process of using the AC water pump, there will be various disadvantages. When the AC water pump works for a long time, the coil heating temperature is too high, causing the water pump to be defective and cannot continue to work, and the noise generated is large, and its life is short.

Method used

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  • Instant heating type water temperature adjustment method and device
  • Instant heating type water temperature adjustment method and device
  • Instant heating type water temperature adjustment method and device

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Embodiment Construction

[0024] A kind of instant water temperature regulation method of the present invention, comprises the following steps:

[0025] Obtain the flow adjustment signal, and modify the flow conduction table according to the flow value; among them, the flow conduction table can use the direct calculation method to obtain the current required water flow control amount, and the calculation and processing in the digital computer, whether it is integral or differential, requires It is approximated by numerical calculation, so it needs to be transformed into a difference equation describing discrete time. The incremental calculation method is the difference between two adjacent calculations relative to the standard algorithm, and the result obtained is an increment, that is to say, the control volume that needs to be increased is calculated on the basis of the previous control volume, and can be calculated according to the flow rate of the water in and out. Forecast and calculate the dynam...

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Abstract

The invention provides an instant heating type water temperature adjustment method and device. The method comprises the following steps that a flow conducting table is modified according to flow values; a PID controller, a PWM controller and a direct-current water pump are sequentially connected and are arranged, the flow conducting table is inquired to judge whether the direct-current water pump needs to be conducted or not, the direct-current water pump is controlled by a PWM signal sent by the PWM controller, and conducting time of the direct-current water pump is associated with high-level lasting time of the PWM signal; water inflow temperature is detected; required power is worked out according to the formula of P=(4200*L**0.98) / 60. Due to the utilization of the direct-current water pump, actual power consumption of the device is lower, the electric energy utilization ratio of the device is higher, and noise is greatly reduced in the working process; because the rotating motion of the direct-current water pump is directly adjusted through the PWM signal, the device is simpler in hardware structure, cost is reduced, the phenomena that if the temperature of a coil is too high during the long-time work of the device, undesirable effect of the water pump is caused and the device will not continuously work are avoided, and the service life of the device is prolonged.

Description

technical field [0001] The invention belongs to the technical field of pump control, and in particular relates to a control structure and method for controlling water temperature of a DC pump. Background technique [0002] Traditional instant hot drinking water products all use AC water pumps. The application principle is: the coil generates a magnetic field, and then directly uses the electromagnetic force to drive the piston to pump water. In the process of using the AC water pump, there will be various disadvantages. When the AC water pump works for a long time, the coil heating temperature is too high, causing the water pump to be defective and cannot continue to work, and the noise generated is large, and its life is short. Furthermore, the internal water temperature and outlet water temperature of drinking water products are affected by various conditions, so it is necessary to flexibly change the water temperature by changing the power supply frequency, voltage amplit...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G05D27/02G05B11/42
Inventor 陈琼雄
Owner 东莞市唯成节能科技有限公司
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