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Undercooling type condensation heat exchanger and heat exchange method thereof

A technology of condensing heat exchangers and condensers, which is applied in the types of heat exchangers, indirect heat exchangers, lighting and heating equipment, etc., can solve the problems of increased condensation resistance and underutilized heat exchange area, and achieves a reduction in The effect of material loss, reduction of heat exchange area, and cost reduction

Active Publication Date: 2015-03-04
福建蓝海节能科技有限公司
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Problems solved by technology

[0003] At present, the mainstream enhanced condensation heat transfer technologies mainly include finned tubes, spiral grooved tubes, and inner spiral finned tubes. Although the above enhanced tube technologies can improve the condensation heat transfer coefficient of the Problems such as the increase of condensation resistance caused by the accumulation of condensate and the underutilization of the heat exchange area in the downstream part need to be solved urgently

Method used

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  • Undercooling type condensation heat exchanger and heat exchange method thereof

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Embodiment Construction

[0027] The technical solutions of the present invention will be further described in detail below in conjunction with the accompanying drawings and embodiments.

[0028] Such as figure 1 A subcooled condensing heat exchanger shown includes a condenser body, a cooling unit in a tube and a subcooling unit. The condenser body includes a cylinder unit and a first seal head 2 and a second seal arranged on both sides of the cylinder body. Head 8, a steam inlet and a steam outlet are provided on the first head 2, and the cylinder unit includes a first cylinder 41 and a second cylinder 42, and the gas-liquid separation between the first cylinder 41 and the second cylinder 42 Separated by the device 6, the first head 2 is provided with a partition 3, the cooling unit in the tube is arranged in the cylinder unit, and the supercooling unit is arranged in the second head 8; wherein:

[0029] The in-pipe cooling unit includes a first-pass heat exchange unit, a second-pass heat exchange un...

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Abstract

The invention provides an undercooling type condensation heat exchanger and a heat exchange method thereof. The condensation heat exchanger comprises a condenser body, an in-tube cooling unit and an undercooling unit. The condenser body comprises a cylinder unit, a first end enclosure and a second end enclosure, and the first end enclosure and the second end enclosure are arranged on two sides of the cylinder unit respectively. The first end enclosure is provided with a steam inlet and a steam outlet. The cylinder unit comprises a first cylinder and a second cylinder which are separated from each other through a gas-liquid separator. A separation plate is arranged in the first end enclosure, the in-tube cooling unit is arranged in the cylinder unit, and the undercooling unit is arranged in the second end enclosure. A steam heat exchange process in heat exchange tubes is divided into two processes in the two cylinders by the separation plate, and flow velocity of steam in each process is kept uniform basically; through heat exchange of the undercooling unit and the in-tube cooling unit, reliability in heat exchange is guaranteed, and application range of the condensation heat exchanger is widened.

Description

technical field [0001] The invention relates to thermal equipment of high-efficiency energy utilization technology, in particular to a subcooling condensation heat exchanger and a heat exchanging method thereof. Background technique [0002] The condensing heat exchanger is a cooling device that removes heat by converting steam into a liquid state, and is widely used in chemical, refrigeration, petroleum, power and energy fields. After the superheated steam enters the condensing heat exchanger, it undergoes three processes of cooling, saturated condensation and subcooling, and the purpose of heat exchange is achieved by releasing sensible heat and latent heat. Studies have shown that the thermal resistance of condensation heat transfer is mainly on the surface of the condensate film, so the goal of improving condensation heat transfer is to accelerate the discharge of condensate and reduce the thickness of the condensate film. [0003] At present, the mainstream enhanced co...

Claims

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Application Information

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IPC IPC(8): F28D7/10
Inventor 贾力
Owner 福建蓝海节能科技有限公司
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