Testing fiber feeding device of heat exchanger

Abstract

The invention provides a testing fiber feeding device of a heat exchanger. The testing fiber feeding device comprises an air cylinder with a rectangular cross section, a piston rod and a rectangular feeding box, wherein a partition plate is arranged in the air cylinder, a piston is arranged on the left side of the partition plate, the feeding box is arranged on the right side of the partition plate in a sliding mode, the right end face of the air cylinder is provided with an opening used for feeding the feeding box into and out of the air cylinder, the piston rod penetrates through the pistonand the partition plate in the length direction of the air cylinder, the right end of the piston rod is connected with the feeding box, and a feeding port is formed in the cylinder wall of the right side of the partition plate. According to the testing fiber feeding device, the uniform feeding of dust-accumulating indoor fibers is realized, the fiber-containing atmosphere environment with the stable and adjustable fiber concentration in a dust accumulation chamber is ensured, and an existing heat exchanger is accelerated to achieve the effect of dust accumulation after actually used for a plurality of years.

Description

technical field [0001] The invention relates to a technique in the technical field of air conditioning, in particular to a fiber feeding device for heat exchanger testing. Background technique [0002] The air conditioner realizes the cooling or heating effect on the room through the heat exchange between the indoor and outdoor unit heat exchangers and the air. The heat exchange efficiency of the heat exchanger will directly affect the cooling or heating effect of the air conditioner. Because the air is mixed with a certain concentration of dust and fibers, as the running time increases, dirt will continue to accumulate on the surface of the heat exchangers of the indoor unit and the outdoor unit; and the heat exchanger blocked by dirt will reduce the air circulation area. As a result, the air volume will attenuate, the heat exchange efficiency of the heat exchanger will decrease, and the long-term performance of the air conditioner will decline. The dirt accumulated on the...

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Problems solved by technology

[0004] The present invention aims at the defect that most of the existing technologies rely on the gravity of the fiber to fall into the feeding area, and then add the fiber through the scraper wheel, which cannot be applied to the accelerated dust accumulation test of the air conditioner heat exchanger, and proposes a fiber feeding test for the heat exchanger. The device can realize the uniform feeding of fibers in the dust accumulation chamber, ensure the formation of a fiber-containing atmosphere with stable and adjustable fiber concentration in the dust accumulation chamber, and accelerate the heat exchanger to achieve the dust accumulation effect after several years of actual use.

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