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Chiller and hot water unit and start-up control method and device thereof

A cold and hot water unit, start-stop control technology, applied in refrigerators, refrigeration components, refrigeration and liquefaction, etc., can solve the problems of frequent start and stop of units and a large number of units to start, and achieve the effect of preventing frequent start and stop

Active Publication Date: 2019-12-27
GD MIDEA HEATING & VENTILATING EQUIP CO LTD +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

This method is likely to cause too many units to start, resulting in frequent start and stop of the unit
Therefore, it is necessary to improve the start-up control of the hot and cold water units to prevent the frequent start-up and shutdown of the unit caused by unreasonable start-up

Method used

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  • Chiller and hot water unit and start-up control method and device thereof
  • Chiller and hot water unit and start-up control method and device thereof
  • Chiller and hot water unit and start-up control method and device thereof

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Embodiment Construction

[0034] Embodiments of the present invention are described in detail below, examples of which are shown in the drawings, wherein the same or similar reference numerals designate the same or similar elements or elements having the same or similar functions throughout. The embodiments described below by referring to the figures are exemplary and are intended to explain the present invention and should not be construed as limiting the present invention.

[0035] The start-up control method, computer-readable storage medium, start-up control device of the chiller-water unit and the chiller-water unit with the start-up control device proposed by the embodiments of the present invention will be described below with reference to the accompanying drawings.

[0036] In an embodiment of the present invention, the chiller and hot water unit may include multiple parallel chiller and hot water unit subsystems.

[0037] Specifically, as figure 1 As shown, the chiller and hot water unit can be...

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Abstract

The invention discloses a water heater and chiller unit and a starting control method and device thereof. The starting control method comprises the following steps that after an automatic starting instruction of the water heater and chiller unit is received, the starting number of water heater and chiller unit subsystems the last time when the water heater and chiller unit normally operates is obtained, and the water heater and chiller unit is controlled to start according to the starting number; after the water heater and chiller unit stably operates, the total water outlet temperature of thewater heater and chiller unit and the set temperature of the water heater and the chiller unit are obtained, and the target minimum change speed and the target maximum change speed when the water heater and chiller unit is started are obtained according to the total water outlet temperature and the set temperature; and the change speed of the current total water outlet temperature of the water heater and chiller unit is obtained, and the multiple water heater and chiller unit subsystems are subjected to starting and stopping control according to the change speed of the current total water outlet temperature, the target minimum change speed and the target maximum change speed. Thus, the starting number of the unit can be reasonably controlled, frequent starting and stopping of the unit areprevented, and the set temperature can be achieved according to the preset speed.

Description

technical field [0001] The invention relates to the technical field of cold and hot water units, in particular to a start-up control method for a cold and hot water set, a start-up control device for a cold-water set, and a cold-water set with the start-up control device. Background technique [0002] At present, in the cold and hot water units with multiple parallel systems, the start and stop of the units are directly controlled according to the temperature difference between the outlet water temperature and the set temperature. This method is likely to cause too many units to start, resulting in frequent start and stop of the unit. Therefore, it is necessary to improve the start-up control of the hot and cold water units to prevent the frequent start-up and stop of the unit caused by unreasonable start-up. Contents of the invention [0003] The present invention aims to solve one of the technical problems in the above-mentioned technologies at least to a certain extent...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): F25B49/00
Inventor 张登科
Owner GD MIDEA HEATING & VENTILATING EQUIP CO LTD
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