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Control equipment and method for protecting small water machine unit and small water machine unit

A technology of control equipment and control method, applied in lighting and heating equipment, fluid heaters and other directions, can solve the problems of limited installation and increased cost

Active Publication Date: 2017-03-29
GD MIDEA HEATING & VENTILATING EQUIP CO LTD +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0003] However, the above two commonly used solutions will not only increase the cost, but also have problems such as limited installation

Method used

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  • Control equipment and method for protecting small water machine unit and small water machine unit
  • Control equipment and method for protecting small water machine unit and small water machine unit

Examples

Experimental program
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Embodiment approach

[0021] According to an embodiment of the present invention, the temperature sensor signals related to the heat exchanger may include a temperature sensor signal of a water inlet of the heat exchanger, a temperature sensor signal of a water outlet of the heat exchanger, and a temperature sensor signal of the heat exchanger.

[0022] Among them, in the water system, the temperature sensor of the water inlet of the heat exchanger can be set at the water inlet of the heat exchanger to detect the water inlet temperature at the water inlet; the temperature sensor of the water outlet of the heat exchanger can be set at the water inlet of the heat exchanger The water outlet is used to detect the outlet water temperature at the water outlet; the heat exchanger temperature sensor can be used to detect the temperature in the middle of the heat exchanger.

[0023] In the present invention, those skilled in the art can set the number of temperature sensors according to the actual situation ...

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Abstract

The invention relates to the field of small water machine control and discloses control equipment and method for protecting a small water machine unit and the small water machine unit. A water system of the small water machine unit comprises a heat exchanger and a water pump, wherein the control equipment comprises a receiving device used for receiving a temperature sensor signal relevant to the heat exchanger and a control device connected with the receiving device and used for determining the water temperature of the heat exchanger according to the temperature sensor signal relevant to the heat exchanger, the water pump is controlled to operate under the condition that the water temperature of the heat exchanger is lower than a first standard temperature and is higher than or equal to a second standard temperature, and the water pump of the water system is controlled according to the temperature sensor signal relevant to the heat exchanger under the condition that the water temperature of the heat exchanger is lower than the second standard temperature. By using the control equipment and method as well as the small water machine unit disclosed by the invention, the water pump of the water system can be controlled under the condition that the water pump enters an anti-freezing state, so that the protection for the small water machine unit (particularly the water pump) is realized.

Description

technical field [0001] The invention relates to the field of small water machine control, in particular to a control device and method for protecting a small water machine unit and the small water machine unit. Background technique [0002] The water system of a small water machine generally includes a water pump (for example, a shielded water pump, whose heat dissipation method is to cool down by water flowing through the pump), heat exchanger, water pipe, water flow switch, related valves and sensors, etc. Control the system through the water flow switch, including controlling the start and stop of the water pump. But when the water flow is relatively low and the water temperature is relatively low, the system needs to enter the antifreeze control. At this time, in order to protect the water system from freezing, even though the water flow switch has been disconnected, the system will force the water pump to be turned on or run in heating mode for anti-freezing protection...

Claims

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Application Information

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IPC IPC(8): F24H9/20F24H9/00
CPCF24H9/0005F24H9/2007
Inventor 黄良伟
Owner GD MIDEA HEATING & VENTILATING EQUIP CO LTD
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