Instant heating type constant-temperature outlet water heating control method

A heating control, instant heating technology, which is applied in the direction of using electric means for temperature control, auxiliary controller with auxiliary heating device, etc. High sensitivity and stability, fast temperature effect

Inactive Publication Date: 2017-05-31
QUANZHOU KEMU INTELLIGENT KITCHEN & TOILET
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] In the prior art, a voltage detection sensor is required for instant heating constant temperature water outlet. After detecting the voltage, the output power of the heater is adjusted. The detection and adjustment process is cumbersome, and the cost of production is increased due to the addition of the voltage sensor.

Method used

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  • Instant heating type constant-temperature outlet water heating control method
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  • Instant heating type constant-temperature outlet water heating control method

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Embodiment Construction

[0028] The present invention will be further described below through specific embodiments.

[0029] The present invention can be applied to an intelligent toilet, and the intelligent toilet is provided with a telescopic rod, a switch valve, a water inlet valve, a water inlet sensor, a water outlet sensor, a heater, a flow meter, and the like. Taking the smart toilet hip wash as an example, the action process of each part is as follows: the telescopic rod returns to the position, the switching valve switches to the self-cleaning position, the water inlet valve is opened and the telescopic rod is extended, and the water inlet valve is closed after the telescopic rod is in place; the switching valve is switched to In the buttock washing position, open the water inlet valve, spray water in a small amount first, and then spray water in a large amount. In the above process, usually from the first opening of the water inlet valve and the extension of the telescopic rod to the small w...

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Abstract

The invention discloses an instant heating type constant-temperature outlet water heating control method, comprising the following steps: (1) opening a water inlet valve, heating water at a certain ratio of a theoretical power, wherein the sustained heating time is t; (2) calculating the current operating voltage according to the current outlet water temperature, an initial inlet water temperature, a flow rate and the theoretical power; (3) calculating a theoretically demanded power according to the operating voltage, the flow rate and temperature difference for heating; and (4) starting to adopt a PID (Proportional Integral Differential) algorithm for regulation if a difference value of the current outlet water temperature and a set temperature is c. According to the instant heating type constant-temperature outlet water heating control method disclosed by the invention, the water is preheated at the time before water spray, a target temperature can be reached quickly when the water spray starts, there is no voltage detection component, and a fuzzy algorithm is adopted to estimate the current voltage value, so that production cost, inspection cost and the like are lowered.

Description

technical field [0001] The invention relates to the field of heating control of bathroom products, in particular to a heating control method for instant hot water with constant temperature outlet. Background technique [0002] In the smart toilet, the instant hot water with constant temperature must meet the following requirements: 1) The water temperature reaches above 35 degrees within 1 second, and reaches the set temperature within 5 seconds; 2) The maximum water temperature does not exceed 42 degrees; 3) When in a steady state The temperature fluctuation is less than 1 degree; 4) Adaptability when the flow and voltage change. Therefore, it is particularly important to control the water temperature. [0003] In the prior art, a voltage detection sensor is required for the instant heating constant temperature water outlet, and the output power of the heater is adjusted after detecting the voltage. The detection and adjustment process is cumbersome, and the production cos...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G05D23/30
CPCG05D23/30
Inventor 林孝发林孝山林山黄永寿陈豪
Owner QUANZHOU KEMU INTELLIGENT KITCHEN & TOILET
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