Heating energy-saving and consumption-reducing system of online PCBA cleaning machine

Abstract

The invention discloses a heating energy-saving consumption-reducing system of an online PCBA cleaning machine. The heating energy-saving consumption-reducing system comprises a high-temperature hot water treatment unit, a waste heat recovery device and the online PCBA cleaning machine. The waste heat recovery device comprises a plate heat exchanger. A waste water discharge pipeline of the onlinePCBA cleaning machine is connected with the waste heat recovery device, a water inlet pipeline of the high-temperature hot water treatment unit is connected with the waste heat recovery device, and the waste heat recovery device comprises a normal-temperature DI water inlet and a waste water discharge outlet. Waste water discharged from the waste water discharge pipeline passes through the plate heat exchanger and then is discharged from the waste water discharge port, and normal-temperature DI water enters from the normal-temperature DI water inlet, passes through the plate heat exchanger andthen is conveyed to the high-temperature hot water treatment unit. By means of the heating energy-saving consumption-reducing system, the waste heat recovery device is used for preliminarily heatingrinsing DI water, then matched with the hot water treatment unit for heating and connected with the online PCBA cleaning machine through a pipeline, waste heat recycling of waste water of the online PCBA cleaning machine is achieved, cost is reduced, and meanwhile the heating energy-saving consumption-reducing system is more friendly to the environment.

Description

technical field [0001] The invention relates to the field of PCBA cleaning equipment, in particular to an on-line PCBA cleaning machine heating energy-saving and consumption-reducing system. Background technique [0002] With the further improvement of electronic products' requirements for miniaturization, functional integration and large storage space, there are more and more miniaturized and high-density packaging forms of components. Especially the use of lead-free solder technology, the lead-free process makes the flux require higher resin or rosin content, which will make the accumulation of flux in a small space more serious. In order to ensure the functional reliability of electronic circuits, more liquid is used to clean the product, which will inevitably generate more rinsing wastewater. [0003] In the SMT industry, the online cleaning machine used for PCBA cleaning process needs to heat DI water from normal temperature to process temperature in the production pro...

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