Sensible-heat-recovery-type fresh air preheating antifreezing device
A technology of sensible heat recovery and fresh air preheating, applied in the field of air conditioning fresh air preheating, can solve problems such as easy damage of fresh air preheaters, and achieve the effects of improving operation stability, reducing temperature difference, and reducing the probability of freezing cracks.
Inactive Publication Date: 2018-12-07
SIPPR ENG GROUP
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Problems solved by technology
[0003] The invention provides a sensible heat recovery type fresh air preheating and antifreezing device, aiming to solve the problem that the existing fresh air preheater is easily damaged
Method used
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Embodiment Construction
[0010] Such as Figure 1-3 As shown, the sensible heat recovery type fresh air preheating and antifreezing device of the present invention includes a fresh air preheater 1 and a sensible heat recovery device 2. The sensible heat recovery device 2 is a cubic structure housing, and the inner cavity of the housing passes through the middle The stainless steel heat exchange plate 3 is divided into a first channel 4 on the left and a second channel 5 on the right. The first channel 4 and the second channel 5 are perpendicular to each other. The inlet of the first channel 4 is connected to the outdoor fresh air pipe The outlet of the first passage 4 is connected with the air inlet of the fresh air preheater 1 through the pipe, the air outlet of the fresh air preheater 1 is connected with the inlet of the second passage 5 through the pipe, and the outlet of the second passage 5 is connected through the pipe It is connected with the fresh air return air mixer.
[0011] When the air c...
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The invention discloses a sensible-heat-recovery-type fresh air preheating antifreezing device. The sensible-heat-recovery-type fresh air preheating antifreezing device comprises a fresh air preheaterand a sensible heat recoverer; and the sensible heat recoverer is a shell of a cubic structure, an inner cavity of the sensible heat recoverer is divided into a first channel located in the left sideand a second channel located in the right side through a middle heat exchange plate, the first channel and the second channel are mutually perpendicular, an inlet of the first channel communicates with an outdoor fresh air pipe, an outlet of the first channel communicates with an air inlet of the fresh air preheater through a pipeline, an air outlet of the fresh air preheater communicates with aninlet of the second channel through a pipeline, and an outlet of the second channel communicates with a fresh air return mixer through a pipeline. According to the sensible-heat-recovery-type fresh air preheating antifreezing device, cold fresh air is prevented from making direct with the fresh air preheater directly, the temperature difference of a cold working medium and a hot working medium inthe fresh air preheater is lowered, the probability of frost crack of a coil of the fresh air preheater is decreased, and the operating stability of a whole air conditioning system is improved.
Description
technical field [0001] The invention relates to the technical field of air-conditioning fresh air preheating, in particular to a sensible heat recovery type fresh air preheating and antifreezing device. Background technique [0002] In the cold and severe cold areas of northern my country in winter, the technological combined air conditioning unit needs to draw fresh air from the outside, filter, heat up and humidify, and then send it to the room through the fan. Since the outdoor fresh air temperature is relatively low (about -35°C-0°C), the fresh air needs to be preheated before being mixed with the return air, and the antifreeze of the fresh air preheating coil is the main problem affecting its normal operation. The traditional fresh air preheater is a coil heat exchanger, and the heating medium is hot water or steam. Due to the large temperature difference between the cold and hot working fluid inside and outside the coil, the fresh air preheater coil is easy to be froze...
Claims
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IPC IPC(8): F24F12/00F24F13/00
CPCF24F12/006F24F13/00F24F2221/34Y02B30/56
Inventor 李航王雷岗董俊侯东明郭传林
Owner SIPPR ENG GROUP