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A U-shaped channel plate heat exchanger

A flow channel plate and heat exchanger technology, applied in the direction of heat exchanger types, indirect heat exchangers, fixed plate conduit components, etc., can solve the problems of channel resistance gradient, heat transfer deterioration, fluid distribution unevenness, etc., to achieve the flow area The effect of large, compact structure and high flow field uniformity

Active Publication Date: 2017-12-01
瑞切尔石化工程(上海)有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

But the disadvantage is that its structure limits the continuous change of the diameter of its arc-shaped channel, and the resistance of each channel changes gradually, resulting in uneven distribution of fluid in it, which will lead to deterioration of heat transfer.

Method used

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  • A U-shaped channel plate heat exchanger
  • A U-shaped channel plate heat exchanger
  • A U-shaped channel plate heat exchanger

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Experimental program
Comparison scheme
Effect test

Embodiment 1

[0055] see Figure 1 to Figure 3 , a U-shaped channel plate heat exchanger according to the present invention, including a shell 3 and a heat exchange plate assembly arranged in the shell 3, the shell 3 is provided with an inlet and an outlet communicating with the fluid channel in the heat exchange plate assembly , the housing 3 is generally a cylindrical housing, and can also be of other shapes. The two ends of the length direction of the housing 3 are respectively provided with a first fluid inlet 1 and a first fluid outlet 5, and the top of the housing 3 is provided with a second fluid outlet. A fluid inlet 11 and a second fluid outlet 10. The heat exchange plate assembly includes U-shaped heat exchange plates 8 symmetrically arranged on both sides of the axis of the shell 3. Each U-shaped heat exchange plate 8 is arranged in sequence from the radial direction of the shell 3 from the outside to the center, and the diameters are sequentially arranged. A plurality of reduced ...

Embodiment 2

[0073] see Figure 4 to Figure 6 , is the second embodiment of the present invention, the side wall of the casing 3 is provided with a second fluid inlet 11 and a second fluid outlet 10, the second fluid inlet 11 is arranged close to the first flow channel outlet 5, and the second fluid outlet 10 is arranged close to the first flow channel outlet 5 A channel inlet 1 setting. The left side of the second fluid inlet 11 is provided with an arc-shaped partition 13, and the two end faces of the second fluid flow channel 9 parallel to the axis of the housing 3 are provided with a second flow channel stop bar 14, and the second flow channel stop bar 14 is only provided with Between the left side of the arc-shaped partition 13 and the left tube plate 2; the second fluid inlet 11, the arc-shaped partition 13, the partition 4 and the right tube plate 2 constitute the inlet collection chamber 102; the second fluid outlet 10 is set on the right side The arc-shaped partition 13, the secon...

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Abstract

The invention discloses a plate heat exchanger with U-shaped flow channels. According to the plate heat exchanger, during heat exchange, a hot fluid (or a cold fluid) flows in from a first fluid inlet of a shell, flows through linear flow channels of U-shaped heat exchange plates and flows out from a first fluid outlet, and the cold fluid (or the hot fluid) flows in from a second fluid inlet in the top of the shell, flows through the U-shaped flow channels of the U-shaped heat exchange plates and flows out from a second fluid outlet, thus heat exchange between the cold fluid and the hot fluid is completed. The heat exchanger disclosed by the invention has the following advantages: (1) the heat exchanger can be configured to be circular in structure as a whole, has a wide application range, and in particular, can be internally arranged in equipment such as a circular barrel; (2) the heat exchanger has the advantages of high heat transfer efficiency and a compact structure because the heat exchange plates are used as heat transfer components; (3) the heat exchanger has the characteristic of high flow field uniformity because the U-shaped heat exchange plates are used and the pressure drops of the second fluid flow channels can be easily adjusted to be approximate; (4) the U-shaped heat exchange plates are made of flat plates, have a large flow area, can adapt to heat exchange for high-flow-rate materials and non-clean mediums, and have a wide application range; and (5) the heat exchanger is simple in structure, convenient to manufacture and low in cost.

Description

technical field [0001] The invention belongs to the technical field of equipment for heating or cooling fluid partition walls, and in particular relates to a U-shaped channel plate heat exchanger. Background technique [0002] At present, there are shell-and-tube heat exchangers and plate heat exchangers widely used in various fields for heating or cooling fluid partition walls. [0003] The existing shell-and-tube heat exchanger is arranged in parallel with several tubes, fixed on the tube sheet to form a tube bundle, and installed in the shell. This heat exchanger has many advantages such as strong adaptability, large processing capacity, wide application range of temperature and pressure, and reliable operation. However, in terms of heat transfer efficiency, compact structure, and metal consumption per unit heat transfer surface, etc. , are not as good as various types of plate heat exchangers. [0004] Plate heat exchanger is an efficient and compact heat exchange equi...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): F28D9/00
CPCF28D9/00
Inventor 程向锋
Owner 瑞切尔石化工程(上海)有限公司