吊頂式冷風機優點是具有傳熱效果好、不占用冷庫使用面積，在冷庫速凍、冷卻間使用較多。
The utility model has the advantages that the heat transfer effect is good, the cold storage area is not occupied, and the utility model is used more frequently in cold storage and freezing and cooling rooms.
管組由無縫鋼管外繞翅片制成。下部管組翅片間距稍大，避免回風濕度大時翅片間被霜阻塞。上部管組翅片間距稍小，以便增加傳熱面積。制冷劑液體從管組下部進入，蒸發后制冷劑氣體從管組上部被壓縮機吸入。
The tube group is made of seamless steel tube winding fins. The fin spacing of the lower tube group is slightly larger, so that the fins are blocked by frost when the return humidity is large. The fin spacing of the upper tube set is slightly smaller in order to increase the heat transfer area. The refrigerant liquid enters from the lower part of the tube group, and the refrigerant gas is sucked into the upper part of the pipe assembly by evaporation after the evaporation.
冷風及配用的通風機有軸流式和離心式兩種。軸流式通風機結構簡單，使用可靠，維護方便，價格低廉，但是其噪音較大，風壓不能太高。離心式通風機的風壓較高，運轉時噪音較低，但是其結構復雜，操作維護技術要求較高，價格相對也高，除在一宿特殊場合采用外，現已很少使用。
There are two kinds of fan and axial fan and axial type and centrifugal type. Axial fan has the advantages of simple structure, reliable operation, convenient maintenance and low price, but its noise is too high and the wind pressure can not be too high. The centrifugal fan has higher wind pressure and lower noise during operation, but its structure is complex, the operation and maintenance technology requirements are high, and the price is relatively high, and it is seldom used except for the special occasions in one night.
管組之上還裝有沖霜淋水管，當用熱氨沖霜時，同時在管組外噴淋水，使管外積結得霜層很快被沖除。冷風機的 上層是風機室，風機室有一定的高度，使通過翅片管的風速趨于均勻。冷風機的 下部裝有盛水盤，承接了呢過我卻管組上的凝結水和沖霜水。
On the upper part of the pipe set, there is also a frost spray water pipe. When hot ammonia is used to spray frost, water is sprayed outside the tube group, so that the outer layer of the pipe is deposited so that the frost layer is quickly washed away. The upper air cooler is a blower room, and the fan chamber has a certain height, so that the wind speed through the fin tube tends to be uniform. The lower part of the air cooler is provided with a water holding tray, and the condensed water and the frost water which are passed through the tube are taken.
吊頂式冷風機的蒸發管組和落地式冷風機基本相同，管組上面裝有沖霜用淋水盤，管組下面有承接沖霜水的盛水盤。吊頂式冷風機配用軸流式通風機，安裝在和蒸發管組的一側，運轉時通風機迫使空氣通過管組降低溫度，然后由出風口送至庫房各處。
The evaporating tube set of the ceiling type air cooler is basically the same as the floor type air blower, and the pipe group is provided with a water spraying tray for defrosting, and the water holding plate is provided below the pipe set to carry the frost water. The ceiling air cooler is equipped with an axial flow fan installed on one side of the evaporating tube group. When running, the fan forces the air to pass through the tube set to reduce the temperature, and then from the air outlet to the warehouse.
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