Smoke purification and heat exchange integration device

A flue gas purification and heat storage technology, which is applied in waste heat treatment, climate sustainability, lighting and heating equipment, etc., can solve the problems of thermal shock damage of filter elements, reduce the service life of filter elements, energy loss, etc., and achieve guaranteed Effects of stabilization, damage reduction, and improvement of waste heat recovery rate

Active Publication Date: 2017-03-08
INST OF PROCESS ENG CHINESE ACAD OF SCI
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] There are many problems in the above method, for example, the cooling water will take away a large amount of heat and cause energy loss, too many times of energy conversion will cause energy loss in the middle of the heat exchange process, etc. The most serious problem is that the method and device cannot keep the temperature of the flue gas at Within a relatively stable range, flue gas temperature fluctuations not only cause huge thermal shock damage to the filter element, reducing the service life of the filter element, but also make the energy output after waste heat recovery unstable, making it difficult to effectively use it

Method used

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  • Smoke purification and heat exchange integration device

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Embodiment 1

[0035] This preferred embodiment discloses an integrated device for flue gas purification and heat exchange. Such as figure 1 and figure 2 As shown, the flue gas purification and heat exchange integrated device includes a shell 1, a thermal insulation layer 2 attached to the inner wall of the shell 1, a flower plate 6 that divides the shell 1 into a dust collection chamber and a clean air chamber, and an insert The ceramic filter membrane tube 3 connected to the flower plate 6, the heat exchange tube 4 placed in the ceramic filter membrane tube 3, the cover plate 14 covered above the opening of the ceramic filter membrane tube 3, the heat exchange tube 4 for fixing The fixed frame 12, the ash unloading valve 18 at the bottom of the housing 1, the thermal storage wall 17 for storing or releasing heat for the flue gas, and the blowback ash cleaning assembly.

[0036] The part above the flower plate 6 is a clean air chamber, and the part below is a dust collecting chamber. Bo...

Embodiment 2

[0050] This preferred embodiment discloses an integrated device for flue gas purification and heat exchange, which is basically the same as the device described in the first preferred embodiment, including a shell, a flower plate that divides the shell into a dust collection chamber and a clean air chamber , the ceramic filter membrane tube inserted on the flower plate, the heat exchange tube placed in the ceramic filter membrane tube, and the heat storage wall used to store or release heat for the flue gas. The smoke outlet is connected to the smoke outlet, the smoke inlet is connected to the dust collection chamber, and the smoke outlet is connected to the clean air chamber; the heat storage wall is located in the dust collection chamber near the smoke inlet.

[0051] The difference is that: if Figure 5 and Figure 6 As shown, although the flue gas passage 172 is inclined downward along the thickness direction of the heat storage body 171 and arranged at intervals, the cro...

Embodiment 3

[0053] This preferred embodiment discloses an integrated device for flue gas purification and heat exchange, which is basically the same as the device described in preferred embodiment 1 or 2, except that: Figure 7 and Figure 8 As shown, although the flue gas passage 172 is inclined downward along the thickness direction of the heat storage body 171 and arranged at intervals, the cross section of the flue gas passage 172 is zigzag, and the zigzag flue gas passage 172 can increase the amount of heat between the flue gas and the heat storage material. The contact area improves the heat storage and heat release efficiency. The cross section of the flue gas channel 172 includes but is not limited to several shapes in the embodiments, and can also be other shapes, which can be set according to actual use requirements.

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Abstract

The invention discloses a smoke purification and heat exchange integration device, belongs to the technical field of smoke afterheat recovery devices, and is designed for solving such problems as low smoke afterheat recovery rate and bad damage of the smoke temperature fluctuation to filter elements in a traditional device. The smoke purification and heat exchange integration device comprises a shell, a tubesheet for dividing the shell into a dust collecting chamber and a smoke purifying chamber, a ceramic filter film pipe inserted in the tubesheet, a heat exchange pipe positioned in the ceramic filter film pipe, and a heat storage wall for storing smoke or releasing heat; a smoke inlet and a smoke outlet are respectively formed in two sides of the shell; the smoke inlet is communicated with the dust collecting chamber; the smoke outlet is communicated with the smoke purifying chamber; and the heat storage wall is positioned in the dust collecting chamber near the smoke inlet. The smoke purification and heat exchange integration device is suitable for dust removal and heat exchange of high-temperature smoke of an intermittent industrial kiln, can efficiently recover smoke afterheat, and reduces the heat vibration damage of the smoke temperature fluctuation to the filter elements.

Description

technical field [0001] The invention relates to the technical field of flue gas waste heat recovery devices, in particular to an integrated device for flue gas purification and heat exchange. Background technique [0002] Industrial kilns can be divided into two categories according to the thermal system: one is the intermittent kiln, which is characterized by the intermittent production of the kiln, and the temperature of the kiln changes in each heating cycle; the second is the continuous kiln Furnace, which is characterized by continuous production of the kiln, the furnace is divided into temperature sections, and the temperature of each section is basically kept constant during the heating process. Compared with the continuous kiln, the commonly used batch kiln has the advantages of flexible heating system and easy production arrangement, etc., but the biggest problem is that it consumes a lot of energy, mainly due to the loss of heat taken away by the flue gas, chemical...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): F27D17/00
CPCF27D17/004F27D17/008F27D2017/007Y02P10/25Y02P80/15
Inventor 刘开琪任小勇张会军陈运法
Owner INST OF PROCESS ENG CHINESE ACAD OF SCI
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