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Modular heat exchange method and device particularly suitable for biomass combustion system

A combustion system and modular technology, applied in the direction of combustion methods, clean heat transfer devices, combustion equipment, etc., can solve the problems of high cost, achieve high energy conversion efficiency, and reduce fire risks

Pending Publication Date: 2019-07-19
黑龙江赫尔特生物质能源发展有限公司
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  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0011] Installations for drying grain by direct heating with natural gas or liquefied petroleum gas are common but expensive around the world

Method used

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  • Modular heat exchange method and device particularly suitable for biomass combustion system
  • Modular heat exchange method and device particularly suitable for biomass combustion system
  • Modular heat exchange method and device particularly suitable for biomass combustion system

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Experimental program
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Effect test

Embodiment Construction

[0046] according to figure 1 As shown, the heat exchange device is only used to generate hot water. It consists of independent flue gas-water heat exchange modules (1, 2, 3), a flue gas inlet port (4) and a flue gas discharge port (5). The flue gas (6) enters the flue gas entry end (4) and exits the flue gas discharge end (5) as exhaust gas (7). The flue gas-water heat exchange modules (1, 2, 3) include heat exchange tubes (8) of different diameters, and the diameters of the heat exchange tubes (8) become smaller along the flue gas flow direction in the next heat exchange module, and the next heat exchange module The heat exchange tubes (8) of the thermal modules (2, 3) can be inserted into the heat exchange tubes of the previous heat exchange module (1, 2) for a small section.

[0047] The heat exchange modules (1, 2, 3) are connected to each other and to the smoke gas inlet end (4) and the smoke gas discharge end (5) by stretching rings (9) with sealing material (10).

[...

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Abstract

The invention relates to a modular heat exchange method and device particularly suitable for a biomass combustion system. A plurality of standardized heat exchange modules capable of using various heat carrier media are included. Flue gas (6) flows in heat exchange pipes (8), and the heat exchange pipes (8) are coaxially arranged between the different heat exchange modules. Thus, when the heat exchange modules operate, a compressed air cleaning spraying gun (30) can be used for effectively cleaning dust on the heat exchange pipes. Due to the fact that dust purifying no longer has to be achieved through the high flowing speed of the flue gas (6), it is possible to decrease the speed of the flue gas and lower the power demand of an induced draft fan. The modular heat exchange method and device are particularly suitable for construction of a system generating hot air through indirect heating, for example, the hot air at 100 DEG C or above is generated efficiently when the modular heat exchange method and device are used for grain drying. The heat exchange device can be arranged in the vertical or horizontal direction according to the needs, the size and the length of the heat exchangedevice can also be designed according to the needs, and the great performance is achieved.

Description

technical field [0001] The invention relates to a modularized heat exchange method and device especially suitable for biomass combustion systems. The device is composed of several heat exchange modules to form a heat exchange device. The invention can be used for different heat power and different heat media. Heat exchange device design. The heat exchange module can be used for hot water heating, and can also heat multiple heat carrier media including hot oil at the same time. Specific application examples are heating air above 100°C by indirect heating and for grain drying. Background technique [0002] The flue gas in the heat exchanger tube of the coal-fired steam boiler is generally designed to flow at a high speed to prevent dust accumulation in the tube. The relatively large dust particles produced by coal combustion contain mineral components, most of which are salts with high melting points and frictional effects, which are beneficial to the purification of heat ex...

Claims

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Application Information

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IPC IPC(8): F23B80/00F23J3/02F28G1/16
CPCF23B80/00F23J3/02F28G1/16
Inventor 克里斯蒂安赫尔特
Owner 黑龙江赫尔特生物质能源发展有限公司
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