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Tube bundle for direct air cooling condenser

An air-cooled condenser, direct technology, applied in the direction of tubular elements, lighting and heating equipment, heat exchange equipment, etc., can solve the problems of high power consumption of fans and failure to meet the requirements of users for energy saving

Inactive Publication Date: 2012-07-25
SHUANGLIANG ECO ENERGY SYST CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

At present, the direct air-cooled condenser with a single row of tube bundles consumes a lot of power and cannot meet the user's energy-saving requirements.

Method used

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  • Tube bundle for direct air cooling condenser
  • Tube bundle for direct air cooling condenser
  • Tube bundle for direct air cooling condenser

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0025] Such as figure 2 as shown, figure 2 For implementing the tube bundle diagram of embodiment 1 of the present invention. Depend on figure 2 It can be seen that the present invention is a tube bundle of a direct air-cooled condenser, which is composed of a tube plate, finned tubes and connectors.

[0026] image 3 It is a cross-sectional view of a tube bundle in Example 1 of the present invention. The finned tube includes a base tube 1 and fins 2, and both ends of the finned tube are welded to the tube sheet. The area of ​​the air flow channel outside the tube formed between the finned tubes gradually expands along the airflow direction, and the air flow channel from the air inlet to the air outlet is in a "V" shape when viewed from the cross-sectional direction of the base tube. The cross-sectional shape of the base pipe 1 is wedge-shaped, and its width dimension changes from large to small along the air flow direction, and the front end width dimension of the cros...

Embodiment 2

[0029] Figure 4 It is a tube bundle diagram of a direct air-cooled condenser tube bundle embodiment 2 of the present invention, Figure 5 It is a schematic cross-sectional view of the tube bundle in Example 2. The difference from Embodiment 1 is that the fins 2 of two adjacent finned tubes are soldered to the connecting piece 3 .

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Abstract

The invention relates to a tube bundle for a direct air cooling condenser, which consists of a tube plate, a finned tube and finned tubes, the area of an air flow channel outside the tube, which is formed among between the finned tubes, enlarges step by step, seen from the direction of the cross section of a base tube, the air flow channel from an air inlet to an air outlet appears in V shape. According to the tube bundle for the direct air cooling condenser, the cross section of the base tube (1) is wedge-shaped and changes from large to small along the air flow direction in size; and the cross section of a fin (2) is ladder-shaped and changes from small to large in size, the tube bundle for the direct air cooling condenser has the function of lowering the air side resistance and reducing the energy consumption of a fan, and the advantage of small resistance can be more obvious when the tube bundle is used in the direct air cooling condenser of a large-scale thermal power plant.

Description

technical field [0001] The invention relates to a tube bundle of a direct air-cooled condenser. It is used in steam turbines in thermal power plants, steam turbines in chemical industry and air separation industry and other waste steam condensation fields. Background technique [0002] The steam turbine and exhaust steam discharged from the steam turbine need to be condensed into water and sent to the boiler for recycling. In order to save water resources, direct air-cooled condensers for exhaust steam condensation are widely used at home and abroad. The direct air-cooled condenser consists of several cooling units, and each cooling unit contains several tube bundles. At present, the heat exchange elements used in direct air-cooled condenser tube bundles are mostly single-row tubes. [0003] There are also deficiencies in the tube bundle of single-row tubes. This is because the cross-sections of the base tube and the fins of the single-row tube are rectangles with a larg...

Claims

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Application Information

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IPC IPC(8): F28F1/24
Inventor 薛海君张健
Owner SHUANGLIANG ECO ENERGY SYST CO LTD
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