Thermal protection type coke oven waste heat recovery and power generation system based on high-efficiency driving power supply circuit

A power supply circuit and high-efficiency drive technology, applied in the protection of overcurrent response, energy efficiency improvement, furnace, etc., can solve the problems of inability to utilize waste heat, etc., and achieve the effect of reducing manual adjustment errors, clear layers, and high degree of automation

CN104990417AInactive Publication Date: 2015-10-21CHENGDU SINOMETALLURGY ENERGY CONSERVATION ENVIRONMENTAL PROTECTION ENG CO LTD
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
Publication Date
2015-10-21
Estimated Expiration
Not applicable · inactive patent

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Abstract

The invention discloses a thermal protection type coke oven waste heat recovery and power generation system based on a high-efficiency driving power supply circuit. The thermal protection type coke oven waste heat recovery and power generation system is mainly composed of a large pit in a coke oven roof and oven roof quarry tiles covering the surface of the coke oven roof, the interior of the large pit in the coke oven roof is sequentially provided with a steel plate with holes, a thermal insulation board layer and a steel plate with holes from bottom to top, a thermal insulation brick layer is arranged between the steel plate with holes and the thermal insulation board layer, heatproof sealing slurry is poured into internal gaps of the large pit in the coke oven roof, the exterior of the large pit in the coke oven roof is provided with a heat exchanger and an evaporator which form an enclosed loop, the evaporator is also provided with a waste heat power generation system, a waste heat control circuit is arranged in the waste heat power generation system, and the waste heat control circuit is provided with a thermal inductance automatic switch circuit, an overcurrent protection circuit, a control-type power supply circuit, a high-efficiency driving power supply circuit and a control-type output circuit, and the overcurrent protection circuit, the control-type power supply circuit, the high-efficiency driving power supply circuit and the control-type output circuit are connected in order.
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Description

technical field

[0001] The invention relates to a waste heat power generation system, in particular to a thermally protected coke oven waste heat recovery power generation system based on a high-efficiency drive power circuit. Background technique

[0002] Coke oven, also known as coke oven, is a furnace made of refractory bricks and refractory blocks. It is the main thermal equipment used to make coal to produce coke, while modern coke oven refers to the main purpose of producing metallurgical coke. 1. A horizontal chamber coke oven capable of recycling coking chemical products, which is mainly composed of a furnace body and auxiliary equipment.

[0003] Due to the characteristics of coke oven production, the surface temperature of the existing coke oven is relatively high, and the temperature of the top surface of the coke oven is about 90°C, which accounts for more than 8% of the total heat consumption of the coke oven. At present, all international and domestic coke ove...

Examples

Embodiment

[0036] Such as Figure 1~4 As shown, the coke oven top pit 1 of the present invention is formed by stacking bricks or cement, etc., and the cross section of its internal cavity is in the shape of an inverted trapezoid, that is, the width of the bottom of the coke oven top pit 1 is smaller than that of the top. width, and the bottom of the coke oven top pit 1 is the base 13 of the coke oven top pit 1, and a special heat exchanger system and a non-porous steel plate 7 are also arranged inside the coke oven top pit 1.

[0037] In order to ensure that the present invention can effectively carry out heat preservation and eliminate defects such as smoke and fire, a perforated steel plate 3, a heat insulating plate layer 4, a Perforated steel plate 3 and furnace top clinker brick 2. Because when laying, not only there are gaps between the perforated steel plate 3 and the heat insulating plate layer 4, between the heat insulating plate layer 4 and the perforated steel plate 3, betwee...