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Constant flow velocity steam-water heat exchanger

A water heat exchanger, heat exchanger technology, applied in the direction of heat exchanger type, indirect heat exchanger, steam/steam condenser, etc., can solve the problems of affecting heat exchange, immersion, obvious flow resistance, etc., to reduce the exchange rate. Heat area, reduce material consumption, improve the effect of heat transfer coefficient

Inactive Publication Date: 2005-02-09
SHANDONG TRYWOW HEATPUMP TECH
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  • Abstract
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AI Technical Summary

Problems solved by technology

Firstly, the heat transfer intensity of steam condensation is high, but the volume flow rate changes greatly; the flow rate on the cold water side is large, and the flow resistance is obvious; secondly, the accumulation of condensate immerses part of the heat transfer surface, which affects the heat transfer; the strengthened surface increases the resistance of the cold water side, At the same time, due to steam condensation, the heat exchange area in the downstream part is not fully utilized
Therefore, when the traditional heat exchanger is used for heat exchange between steam and water, there are problems such as large volume and poor export of condensate.

Method used

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  • Constant flow velocity steam-water heat exchanger
  • Constant flow velocity steam-water heat exchanger

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Embodiment Construction

[0007] Embodiment is as follows in conjunction with accompanying drawing description:

[0008] Equal flow velocity steam-water heat exchanger of the present invention ( figure 1 ) consists of a head 2, a heat exchanger body 1, and a condensate collector 3; there is a steam inlet 7 and a steam outlet 8 on the head; there is a partition 6 inside the head 2 to separate the incoming steam from the discharged steam, The head 2 and the heat exchanger body 1 are connected by flanges; the heat exchanger body 1 is formed by connecting two independent units through flanges; each independent unit is equipped with two sets of heat exchange tube groups 4 with different numbers of tubes, The direction of steam flow in the two groups of tubes is opposite, one group flows from top to bottom, and the other group flows from bottom to top; two independent units are connected by a tube sheet 11, and there is a cavity 13 between the tube sheets to flow downward , the other group flows from bottom...

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Abstract

A vapour-water heat exchanger with same flow speed is composed of cap with vapour ilet anjd outlet, cylindrical main body consisting of more than one unit, and condensed liquid collector. Each unit of said main body contains two groups of heat exchanging tubes in which vapour flows in different direction. Its advantages are high heat exchange coefficient increased by 30-50% and less loss of material.

Description

technical field [0001] The invention relates to thermal equipment, in particular to a class of steam-water heat exchangers. Background technique [0002] At present, various types of heat exchangers are usually applied to gas or liquid media. When the heat transfer area of ​​the hot and cold sides is close, the hot and cold fluid sides have comparable heat transfer coefficients, and the operation effect of the heat exchanger is better. If the heat transfer coefficient on one side is low, strengthening means should generally be used to reduce the thermal resistance on that side. But for the steam-water heat exchanger, it has its own characteristics. Firstly, the heat transfer intensity of steam condensation is high, but the volume flow rate changes greatly; the flow rate on the cold water side is large, and the flow resistance is obvious; secondly, the accumulation of condensate immerses part of the heat transfer surface, which affects the heat transfer; the strengthened su...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): F28B1/02F28D7/16
Inventor 彭晓峰贾力
Owner SHANDONG TRYWOW HEATPUMP TECH
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