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Top plate of tubular gas-gas heater

A gas-to-air heat exchanger and tube-type technology, which is applied to the roof of the tube-type gas-to-gas heat exchanger, can solve the problems of corroded carbon steel plates, thick carbon steel plates, and waste of materials, so as to reduce the amount of engineering, reduce weight, Eliminate Mixed Effects

Active Publication Date: 2016-12-07
浙江鼎诚环保科技有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0003] The Chinese utility model patent with the authorized notification number CN 202853459 U discloses a top plate of a tubular air-gas heat exchanger, which uses a carbon steel plate to cover the upper and lower sides of the polytetrafluoroethylene plate to achieve anti-corrosion, but in order to resist temperature stress, the thickness of the carbon steel plate is thicker, the material waste is more serious, and there is always a gap between the PTFE plate and the heat exchange tube under the carbon steel plate, and the gas leaking through the gap will corrode the carbon steel plate

Method used

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  • Top plate of tubular gas-gas heater

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Effect test

Embodiment 1

[0029] Embodiment 1: A top plate of a tubular air-to-air heat exchanger, including a double-layer structure composed of an upper end plate 1 and a lower end plate 2, and several through holes 3 that pass through the double-layer structure and allow the heat exchange tubes to pass through, The through hole 3 is provided with a ventilation sleeve 4, the ventilation sleeve 4 is provided with a ventilation sleeve air hole 41, the inner diameter of the ventilation sleeve 4 is greater than the outer diameter of the heat exchange tube after thermal expansion, and the ventilation The upper end surface of the casing 4 is flush with the upper end surface of the upper end plate 1, and the lower end surface of the ventilation sleeve 4 is flush with the lower end surface of the lower end plate 2; the double-layer structure is surrounded by a sealing plate 5 , the sealing plate 5 is located between the upper end plate 1 and the lower end plate 2, the sealing plate 5 is provided with a sealin...

Embodiment 2

[0035] Embodiment 2: A top plate of a tube-type air-to-air heat exchanger, including a double-layer structure composed of an upper end plate 1 and a lower end plate 2, and several through holes 3 that pass through the double-layer structure and allow the heat exchange tubes to pass through, The through hole 3 is provided with a ventilation sleeve 4, the ventilation sleeve 4 is provided with a ventilation sleeve air hole 41, the inner diameter of the ventilation sleeve 4 is greater than the outer diameter of the heat exchange tube after thermal expansion, and the ventilation The upper end surface of the casing 4 is flush with the upper end surface of the upper end plate 1, and the lower end surface of the ventilation sleeve 4 is flush with the lower end surface of the lower end plate 2; the double-layer structure is surrounded by a sealing plate 5 , the sealing plate 5 is located between the upper end plate 1 and the lower end plate 2, the sealing plate 5 is provided with a seal...

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Abstract

The invention relates to a top plate of a tubular gas-gas heater, and belongs to the technical field of gas-gas heat exchange. The top plate of the tubular gas-gas heater comprises a double-layer structure formed by an upper end plate and a lower end plate, and multiple through holes penetrating the double-layer structure and allowing heat exchange pipes to pass through. Ventilation sleeves are arranged on the through holes. Each ventilation sleeve is provided with at least one ventilation sleeve gas hole. A sealing plate is arranged around the double-layer structure and located between the upper end plate and the lower end plate. A sealing plate gas hole is formed in the sealing plate. An upper plate is laid on the upper end plate. Upper connection holes matched with the through holes in position are formed in the upper plate. The inner diameter of the upper connection holes is 0.1 to 1 millimeter larger than the outer diameter of the heat exchange pipes. The strength and rigidity of the top plate are larger than those of a steel plate with the thickness being 60 mm, meanwhile, the weight of the top plate only accounts for one third of the steel plate with the thickness being 60 mm, the weight of the whole heat exchanger is greatly decreased, and the project amount of installation and construction of the heat exchanger is also decreased.

Description

technical field [0001] The invention relates to the technical field of gas-gas heat exchange, in particular to a top plate of a tube-type gas-gas heat exchanger. Background technique [0002] Tubular gas-to-gas heat exchanger (GGH) is a heat exchange device that uses high-temperature fluid to be cooled and low-temperature fluid to be heated. Usually, the high-temperature fluid is a gas containing pollutants (which can be called the original flue gas), and the low-temperature fluid is the gas that has passed through The purified gas (can be called clean flue gas); the tubular GGH is mainly composed of a top plate, a bottom plate, a middle partition, a side wall and hundreds of heat pipe elements (heat exchange tube bundles), and the tubular GGH is arranged vertically , which is characterized by the vertical (vertical, along the direction of gravity) arrangement of the heat exchange tubes, and the fluid in the heat exchange tubes flows from bottom to top or from top to bottom....

Claims

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Application Information

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IPC IPC(8): F28F9/02
CPCF28F9/0219F28F9/0229
Inventor 沈煜晖吴涛
Owner 浙江鼎诚环保科技有限公司