CN212179657U

CN212179657U - Plate-fin heat exchanger using section bar

Info

Publication number: CN212179657U
Application number: CN201922323956.6U
Authority: CN
Inventors: 李建明; 陆国明; 王万星
Original assignee: SUZHOU SANCHUAN HEAT EXCHANGER CO LTD
Current assignee: SUZHOU SANCHUAN HEAT EXCHANGER CO LTD
Priority date: 2019-12-23
Filing date: 2019-12-23
Publication date: 2020-12-18
Anticipated expiration: 2029-12-23

Abstract

The plate-fin heat exchanger applying the section comprises a plate bundle body (1), wherein the plate bundle body (1) is formed by alternately stacking two or more layer channel units, and is characterized in that: at least one of the layer channel units is a high-pressure layer channel unit (11), the high-pressure layer channel unit (11) comprises an integrally extruded aluminum profile plate body (111), and fluid channels (1111) are uniformly arranged in the aluminum profile plate body (111). The utility model discloses a high pressure layer passageway unit bearing capacity promotes by a wide margin, makes it to replace current coil pipe heat exchanger to be used for the high pressure occasion.

Description

Plate-fin heat exchanger using section bar

Technical Field

The utility model relates to a plate-fin heat exchanger, concretely relates to plate-fin heat exchanger of applied section bar.

Background

The plate-fin heat exchanger is a high-efficiency heat exchanger using fins as heat transfer elements, and has the characteristics of high heat transfer efficiency, compact structure, expandable heat exchange channel number, large adaptability, light weight and the like, so that the plate-fin heat exchanger is widely applied to heat exchange equipment with two or more of gas-gas, gas-liquid and liquid-liquid, and is generally applied to the field of air separation equipment at present.

In the prior art, reference can be made to the technical standard "NB/T47006-2019 aluminum plate-fin heat exchanger", the standard plate-fin heat exchanger is composed of plate bundle bodies, end sockets, connecting pipes, supports and other accessories, and the plate bundle bodies are composed of two or more layer channel units which are alternately stacked. Taking two layers of channel units as examples, the first layer channel unit and the second layer channel unit are composed of fins, flow deflectors, seals and partition plates, fluid inlets and outlets of the two layer channel units are led out from the circumferential side edges of the two layer channel units in different directions, then upper seal heads are welded on the side portions of the plate bundle body along the thickness direction to accommodate the fluid inlets and the fluid outlets of the same layer channel units, and respective connecting pipes are welded on the seal heads to serve as a total inlet and an outlet, so that the heat exchanger is formed.

However, the existing plate-fin heat exchanger is limited by the strength of the aluminum material of the sealing strip and the partition plate, and the design pressure of the fluid is generally required to be not more than 10Mpa, so that the existing plate-fin heat exchanger is not suitable for high-pressure fluid, and only a coil type heat exchanger with high manufacturing cost and poor heat transfer efficiency can be used under the condition of the high-pressure fluid.

Disclosure of Invention

The utility model aims at providing an use plate-fin heat exchanger of section bar makes plate-fin heat exchanger's bearing capacity promote, can be used for high-pressure fluid.

In order to achieve the above purpose, the utility model adopts the technical scheme that: the plate-fin heat exchanger comprises a plate bundle body, wherein the plate bundle body is formed by alternately overlapping two or more layer channel units, at least one of the layer channel units is a high-pressure layer channel unit, the high-pressure layer channel unit comprises an integrally extruded aluminum profile plate body, and fluid channels are uniformly arranged in the aluminum profile plate body.

In the above aspect, the cross-sectional shape of the fluid channel is circular.

In the above scheme, the cross-sectional shape of the fluid channel is rectangular.

In the above scheme, the inner wall of the fluid channel is provided with the dentate bulge.

Based on above technical scheme, the utility model discloses following advantage and effect have:

the utility model discloses breakthroughly adopt integrative extrusion's aluminium alloy plate body to come as a layer passageway unit, because the aluminium alloy plate body is extrusion, length direction is adjustable, compares with the ordinary layer passageway unit of constituteing by fin, strip of paper used for sealing and baffle, and bearing capacity strengthens far away, and burst pressure reaches 60Mpa, can with the head lug weld on aluminium alloy plate body lateral part during and the preparation, has also reduced the build-up welding process.

Drawings

Fig. 1 is a partial schematic view of a plate bundle body according to an embodiment of the present invention.

In the above drawings: 1. a plate bundle body; 11. a high-pressure layer channel unit; 111. an aluminum profile plate body; 1111. a fluid channel; 12. a conventional layer channel unit.

Detailed Description

The invention will be further described with reference to the following drawings and examples:

example (b): referring to FIG. 1:

the embodiment relates to a plate-fin heat exchanger applying sectional materials.

The plate-fin heat exchanger comprises a plate bundle body 1 and accessories such as end sockets and the like arranged on the plate bundle body 1. The plate bundle body 1 is formed by stacking two or more layer channel units at intervals.

At least one of the layer channel units is a high-pressure layer channel unit 11.

Specifically, as shown in fig. 1, the plate-fin heat exchanger of the embodiment has two kinds of layer channel units, one is the high-pressure layer channel unit 11, and the other is the conventional layer channel unit 12, and the two kinds of layer channel units are alternately stacked.

The conventional layer passage unit 12 is composed of fins, guide vanes, seals and partition plates.

Referring to fig. 1, the high pressure layer passage unit 11 includes an integrally extruded aluminum profile plate 111, and fluid passages 1111 are uniformly formed in the aluminum profile plate 111.

The cross-sectional shape and the cross-sectional area of the fluid channel 1111 are selected according to design parameters, and may be circular, rectangular, and the like.

In order to increase the heat exchange area and further improve the heat exchange efficiency, tooth-shaped protrusions can be additionally arranged on the inner wall of the fluid channel 1111.

Brazing materials are arranged between the aluminum profile plate body 111 of the high-pressure layer channel unit 11 and the partition plate of the conventional layer channel unit 12, and the whole body is connected in a vacuum brazing mode during manufacturing.

This embodiment breakthroughs the aluminium alloy plate body 111 that adopts integrative extrusion to come as a layer passageway unit, because aluminium alloy plate body 111 is extrusion, length direction is adjustable, compares with the ordinary layer passageway unit of constituteing by fin, strip of paper used for sealing and baffle, and the bearing capacity strengthens far away, and can weld the head lug weld on aluminium alloy plate body 111 lateral part, has also reduced the build-up welding process.

In the description of the present invention, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc., indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience of description and simplicity of description, but do not indicate or imply that the device or element being referred to must have a particular orientation, be constructed and operated in a particular orientation, and thus, should not be construed as limiting the present invention. Furthermore, the terms "first," "second," and "third" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance.

In the description of the present invention, it should be noted that, unless otherwise explicitly specified or limited, the terms "mounted," "connected," and "connected" are to be construed broadly, e.g., as meaning either a fixed connection, a removable connection, or an integral connection; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meanings of the above terms in the present invention can be understood in specific cases to those skilled in the art.

The above embodiments are only for illustrating the technical concept and features of the present invention, and the purpose of the embodiments is to enable people skilled in the art to understand the contents of the present invention and to implement the present invention, which cannot limit the protection scope of the present invention. All equivalent changes and modifications made according to the spirit of the present invention should be covered by the protection scope of the present invention.

Claims

1. The plate-fin heat exchanger applying the section comprises a plate bundle body (1), wherein the plate bundle body (1) is formed by alternately stacking two or more layer channel units, and is characterized in that: at least one of the layer channel units is a high-pressure layer channel unit (11), the high-pressure layer channel unit (11) comprises an integrally extruded aluminum profile plate body (111), and fluid channels (1111) are uniformly arranged in the aluminum profile plate body (111).

2. The plate-fin heat exchanger using the profile as set forth in claim 1, wherein: the cross-sectional shape of the fluid channel (1111) is circular.

3. The plate-fin heat exchanger using the profile as set forth in claim 1, wherein: the cross-sectional shape of the fluid channel (1111) is rectangular.

4. The plate-fin heat exchanger using the profile as set forth in claim 1, wherein: the inner wall of the fluid channel (1111) is provided with a dentate bulge.