Heat pipe anti-freezing type air heating unit

Abstract

The invention discloses a heat pipe anti-freezing type air heating unit which comprises an air treatment system used for heating low-temperature fresh air. The air treatment system comprises an air inlet section, a heat pipe section and an air supply section which are sequentially arranged, and the heat pipe section is provided with a plurality of groups of heat pipes; the water circulation system comprises a water tank arranged on the air inlet section, and the water tank is communicated with a water inlet pipe and a water outlet pipe; the evaporation section of the heat pipe is arranged in the water tank, the condensation section of the heat pipe is located on the air inlet section, and water in the water tank exchanges heat with low-temperature fresh air through the heat pipe. According to the water tank, the evaporation section and the condensation section of the heat pipe are separated, so that internal continuous circulation and external isolation of two media in different phase states are achieved, heat transfer is achieved, the evaporation section is arranged in the water tank and absorbs heat of circulating water, when a water pump breaks down and stops running, the heat pipe cannot be instantly frozen to crack, the performance of the whole heat exchanger is guaranteed, and the service life of the heat exchanger is prolonged. And the device can continuously and stably run for a period of time, so that sufficient maintenance time is reserved for maintenance operation.

Description

technical field [0001] The invention relates to the technical field of heat exchange, in particular to a heat pipe antifreeze type air heating unit. Background technique [0002] The heat pipe heat exchanger can realize heat exchange simply and efficiently. The traditional air heating unit adopts the air-water tube fin heat exchanger, which uses hot water to pass through the tube to release heat to the outside air through the fins. When the pump fails to stop running, the temperature of the hot water of the heat source is insufficient, etc., it is the antifreeze of the coal mine in the cold area. Due to the large air intake at the wellhead, once an unexpected working condition occurs, the heat exchange of the local finned tube is often frozen and cracked, freezing. After the crack, the water flow of the finned tube stops, which quickly leads to irreversible damage to the entire heat exchanger, which affects the reliability and safety of the wellhead heat exchange system. Th...

AI Technical Summary

Problems solved by technology

[0002] The heat pipe heat exchanger can achieve heat exchange in a simple and efficient manner. The traditional air heating unit uses an air-water tube-fin heat exchanger, which uses hot water to pass through the tube and release heat to the outside air through the fins. In actual use, it often encounters When the water pump fails to stop running, the hot water temperature of the heat source is insufficient, etc., especially the coal mine wellhead in the cold area is antifreeze. Due to the large air intake at the wellhead, once an unexpected working condition occurs, it often causes local finned tubes to freeze and crack in an instant. After cracking, the water flow of the finned tubes stops, which quickly leads to irreversible damage to the entire heat exchanger, affecting the reliability and safety of the wellhead heat exchange system

Therefore, it is urgent to solve the problem of freezing and cracking of traditional air heating units in winter

Images