A heat exchanger with a defrosting device

A heat exchanger and injection device technology, applied in heat exchange equipment, lighting and heating equipment, damage protection, etc., can solve the problems of heat exchangers without matching defrosting devices, etc., and achieve high heat exchange efficiency and low The risk of loss of heat exchange efficiency and the effect of solving defrosting

Active Publication Date: 2021-07-02
AEROSPACE HIWING HARBIN TITANIUM IND
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Problems solved by technology

[0004] The present invention solves the problem that the heat exchanger in the prior art does not have a matching defrosting device, and provides a heat exchanger with a defrosting device. The frost device uses the volatility and miscibility of methanol liquid to reduce the temperature and partial pressure of water vapor in the air inside the heat exchanger, so that the air passes through the heat exchanger quickly without frosting, thereby reducing the microchannel heat exchanger due to condensation. Risk of loss of heat exchange efficiency due to frost

Method used

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  • A heat exchanger with a defrosting device
  • A heat exchanger with a defrosting device
  • A heat exchanger with a defrosting device

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specific Embodiment approach 1

[0029] Specific implementation mode one: see Figure 1-Figure 6 This embodiment will be described. The heat exchanger with a defrosting device described in this embodiment includes a plurality of dense tube bundle heat exchange parts 2 and a defrosting device, and a plurality of the dense tube bundle heat exchange parts 2 are connected in series and longitudinally penetrate the defrosting device. The defrosting device includes a methanol injection device, a methanol absorption device and a base plate 4, the base plate 4 is a circular plate with evenly distributed circular through holes 1, the methanol injection device is in the shape of a ring, the diameter is the same as the base plate, and is connected to the base plate. The bottom plate 4 is fixedly connected, and the methanol absorption device is located inside the methanol injection device and is fixedly connected with the bottom plate 4. The part of the bottom plate 4 located between the methanol injection device and the...

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Abstract

The present invention proposes a heat exchanger with a defrosting device. The heat exchange parts of multiple dense tube bundles of the device are connected in series and run through the defrosting device longitudinally. The formaldehyde injection device of the defrosting device is fixedly connected to the bottom plate in a ring shape The methanol absorption device is located inside the formaldehyde injection device, and through holes 1 are uniformly distributed on the bottom plate between the formaldehyde injection device and the methanol absorption device. The dense tube bundle heat exchange part is installed longitudinally between the annular formaldehyde injection device and the methanol absorption device. And pass through the circular through hole of the bottom plate. It solves the problem that the heat exchanger in the prior art does not have a matching defrosting device, and provides a heat exchanger with a defrosting device. A defrosting device is added to the microchannel heat exchanger to utilize the volatilization of methanol liquid compatibility and miscibility, reduce the temperature and partial pressure of water vapor in the air inside the heat exchanger, so that the air passes through the heat exchanger quickly without frosting, thereby reducing the loss of heat exchange efficiency of the microchannel heat exchanger due to frosting risk.

Description

technical field [0001] The invention relates to a heat exchanger with a defrosting device, belonging to the technical field of heat exchange equipment. Background technique [0002] Since the heat exchanger uses cryogenic liquid helium as a coolant, water vapor in the air freezes within seconds as it passes through the heat exchanger. A large amount of liquid phase water is precipitated during cooling, and this water must be discharged from the heat exchanger before being frozen. With the sudden contact between the main body of the heat exchanger and the air, it is necessary to find a way to prevent the water vapor from forming frost. [0003] Due to its advantages of small size and light weight, the dense tube heat exchanger has become an important new direction of heat exchanger research and development. However, due to the complex and fine structure of the dense tube heat exchanger, while meeting the heat exchange efficiency , the problem of defrosting the heat exchanger...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): F28F19/00
Inventor 贾际刘俊秀韩芳明李雪梅王文博
Owner AEROSPACE HIWING HARBIN TITANIUM IND
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