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Injection moulding shop air conditioner and its control method

A technology for air-conditioning systems and workshops, applied in air-conditioning systems, heating and ventilation control systems, heating and ventilation safety systems, etc., can solve problems such as low efficiency and high energy consumption, improve efficiency, reduce energy consumption, and prevent mold The effect of condensation on the surface

Active Publication Date: 2010-05-19
GAC HONDA AUTOMOBILE CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

But in this way, even in non-working days and winter, the air-conditioning system must be kept fully open, which consumes more energy, and no matter what the indoor temperature and humidity are, the fan of the air-conditioning will run at a constant speed for a long time, which is not efficient

Method used

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  • Injection moulding shop air conditioner and its control method
  • Injection moulding shop air conditioner and its control method
  • Injection moulding shop air conditioner and its control method

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Experimental program
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Embodiment

[0022] refer to figure 1 As shown, several injection molding machines 20 are set in the injection molding workshop 19. The air conditioning system used in the injection molding workshop includes an indoor fan 1 located indoors, and a refrigeration pump 3, a refrigerator 2, a cooling pump 5 and a cooling tower located outdoors. 4. There is a refrigeration cycle established by the refrigeration pump 3 between the indoor fan 1 and the refrigerator 2, and a cooling water circulation established by the cooling pump 5 between the cooling tower 4 and the refrigerator 2. The air conditioning system also includes a separate Four indoor temperature and humidity sensors 11, 12, 13, 14, a temperature and humidity sensor 10 located outside, fan frequency converter 7 and programmable controller 6 that control the speed of the indoor fan 1, wherein the temperature and humidity sensors 11, 12, 13, 14 and 15 can respectively transmit the indoor and outdoor temperature and humidity signals to t...

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Abstract

The invention discloses an air conditioning system used in an injection molding workshop and a control method thereof. The air conditioning system comprises an indoor fan, a refrigerating pump, a refrigerator, a cooling pump and a cooling tower. A refrigerating loop is arranged between the indoor fan and the refrigerator and established by the refrigerating pump. A cooling loop is arranged betweenthe cooling tower and the refrigerator and established by the cooling pump. The air conditioning system further comprises a humidity / temperature sensor, a fan frequency convertor for controlling therotational speed of the indoor fan, and a programmable controller, which are independently arranged inside the injection molding workshop. The humidity / temperature sensor senses the humidity / temperature conditions indoor and outputs humidity / temperature signals corresponding to the humidity / temperature conditions. The programmable controller receives the humidity / temperature signals and controls the fan frequency convertor to regulate the rotational speed of the indoor fan. The control method comprises the following steps: detecting the humidity / temperature conditions inside the injection molding workshop, and regulating the rotational speed of the indoor fan according to the humidity / temperature conditions of the injection molding workshop. The invention can avoid the condensation on themould surface, reduce energy consumption, and increase use efficiency.

Description

technical field [0001] The invention relates to an air-conditioning system and a control method thereof, in particular to an air-conditioning system and a control method used in an injection molding workshop. Background technique [0002] Prefabricated molds need to be used during injection molding operations. In order to facilitate injection molding, the molds are usually placed directly in the injection molding workshop. In order to ensure the cleanliness of the mold surface, the injection molding workshop is usually equipped with air conditioning systems, fans indoors, and refrigerators and cooling outdoors. The cooling medium circulation power between the tower, the freezer and the fan comes from the chilled water pump, and the cooling water circulation power between the cooling tower and the freezer comes from the cooling pump. In order to prevent condensation and rust on the surface of the mold and affect the use, the temperature and humidity inside the injection moldi...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): F24F3/06F24F11/00
Inventor 袁昊博杜孙筹
Owner GAC HONDA AUTOMOBILE CO LTD
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