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Butt clamp heat exchanger for preheating air by using waste heat of flue gas

A technology for preheating air and waste heat of flue gas, which is applied in the types of heat exchangers, indirect heat exchangers, lighting and heating equipment, etc., and can solve the problem of complex structure of double-helix heat exchangers, affecting heat exchange effect, and large gap between outer walls and other problems, to achieve the effect of good preheating effect, simple assembly, and small airflow resistance

Inactive Publication Date: 2011-08-31
娄底市兴华有色金属有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The common method of preheating cold air with flue gas waste heat is to use jacketed heat exchanger as flue preheated air. The dust concentration is very high, and it is easy to adhere to the pipe wall, so generally only double-helix heat exchangers are used, but the structure of the double-helix heat exchanger is complex, the production and installation of the interlayer inner helix are difficult, the airflow resistance is large, and the gap with the outer wall is large. Easy to cross wind, affect the heat transfer effect

Method used

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  • Butt clamp heat exchanger for preheating air by using waste heat of flue gas
  • Butt clamp heat exchanger for preheating air by using waste heat of flue gas
  • Butt clamp heat exchanger for preheating air by using waste heat of flue gas

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Embodiment Construction

[0010] from figure 1 with figure 2 It can be seen that the heat exchanger of the present invention has an inner cylinder 1, an outer cylinder 2, and an annular plate 4. The outer cylinder 2 is covered outside the inner cylinder 1, and the upper and lower sides are respectively closed by an annular plate to form a heat exchange jacket chamber 3. The outer cylinder The two sides of 2 respectively have a rectangular cold air inlet 5 and hot air outlet 6, the cold air inlet 5 and hot air outlet 6 are arranged symmetrically to the outer cylinder and directly opposite to each other, the cold air inlet 5 and the hot air outlet 6 The height is the same as that of the outer cylinder 2, the width is between 10cm and the width of the outer cylinder (including the width), and the optimal width is between 50 and 300mm. When the width of the cold air inlet 5 and the hot air outlet 6 is smaller than that of the outer cylinder 2 When the width of urceolus 2 is round, when the width of cold ...

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Abstract

The invention discloses a butt clamp heat exchanger for preheating air by using waste heat of flue gas, which comprises a heat exchange clamp jacket cavity formed by an inner cylinder and an outer cylinder, wherein openings at both ends of the inner cylinder are used for allowing the waste heat flue gas to flow through; both ends of the outer cylinder and the inner cylinder are sealed by an annular plate; a cold air inlet is connected to one edge of the lateral surface of the outer cylinder, and a hot air outlet is connected to the other edge of the lateral surface of the outer cylinder; and the cold air inlet and the hot air outlet are opposite mutually. The butt clamp heat exchanger has a simple structure, small airflow resistance and good heat exchange effect, and is convenient to manufacture.

Description

technical field [0001] The invention relates to a heat exchanger for preheating air with waste heat of flue gas. Background technique [0002] In the traditional smelting process of antimony and other non-ferrous metals, the waste heat of system flue gas is widely used to preheat cold air, and the preheated air is blown into the metallurgical furnace, which can reduce coke consumption, optimize economic and technical indicators, and improve smelting effect. The common method of preheating cold air with flue gas waste heat is to use jacketed heat exchanger as flue preheated air. The dust concentration is very high, and it is easy to adhere to the pipe wall, so generally only double-helix heat exchangers are used, but the structure of the double-helix heat exchanger is complex, the production and installation of the interlayer inner helix are difficult, the airflow resistance is large, and the gap with the outer wall is large. It is easy to cross wind and affect the heat exch...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): F28D7/10
Inventor 姜东兵王卫国张剑锋
Owner 娄底市兴华有色金属有限公司
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