CN1680767A - Waste heat utilizing loop-closing system of industrial furnace with producer gas as fuel - Google Patents
Waste heat utilizing loop-closing system of industrial furnace with producer gas as fuel Download PDFInfo
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- CN1680767A CN1680767A CN 200410012463 CN200410012463A CN1680767A CN 1680767 A CN1680767 A CN 1680767A CN 200410012463 CN200410012463 CN 200410012463 CN 200410012463 A CN200410012463 A CN 200410012463A CN 1680767 A CN1680767 A CN 1680767A
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- industrial furnace
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- heat exchanger
- gas generator
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Abstract
The invention relates to a waste heat utilizing loop-closing system of industrial furnace with producer gas as fuel. The gas generator applies the saturated air mixed by the normal temperature air and steam as gasification agent. The produced gas by the method has a low heat value, a low temperature and a low pressure. The combustion-supporting air blown by industrial furnace is preheated that it is able to improve the heating quality of the further. The invention makes the high temperature gas in the industrial furnace flue exchange heat with two heat exchangers. The produced heat air is respectively infused to the industrial furnace for supporting combustion and to the gas generator as gasification agent. The hot steam or hot water produced by the industrial furnace cooling medium may being the gasification agent of the gas generator. The system can largely decreases the energy consumption of the industrial furnace and increases the gasification heat efficiency of the gas generator.
Description
One, technical field:
The present invention relates to the UTILIZATION OF VESIDUAL HEAT IN technical field, specifically a kind of is that the industrial furnace residual heat of fuel utilizes closed-loop system with the producer gas.
Two, background technology:
At present, the industrial furnace that with the producer gas is fuel mainly comprises two parts: the one, and conventional gas generator, mix the formation saturated air as gasifying agent with normal temperature air and water vapour, obtain producer gas with scorching hot charcoal effect in producer, this calorific value of gas is low, temperature is low, pressure is low.The 2nd, industrial furnace feeds coal gas and air mixing after-combustion heated parts.Not organically contact between these two parts makes with the producer gas to be that the waste heat of the industrial furnace of fuel is not fully utilized.
Three, summary of the invention:
The objective of the invention is to want to provide a kind of is that the industrial furnace residual heat of fuel utilizes closed-loop system with the producer gas.To solve the problem that industrial furnace residual heat utilizes.In general, the waste heat of industrial furnace is made up of two parts: the one, and the heat that the high-temperature flue gas that industrial furnace produces is taken out of; The 2nd, the heat (vapours or hot water) that the industrial furnace cooling medium produces.The present invention thinks to utilize to greatest extent this two parts heat, forms a closed loop bootstrap system.
Technical scheme of the present invention is as follows: two heat exchangers of polyphone assembling in the stove external flue of industrial furnace, high-temperature flue gas elder generation and high-temperature heat exchanger heat exchange that industrial furnace produces, back and low temperature heat exchanger heat exchange.It is combustion-supporting that the hot-air that high-temperature heat exchanger produces enters industrial furnace, and the hot-air that low temperature heat exchanger produces enters gas generator as gasifying agent.The hot-air that vapours that the industrial furnace cooling medium produces or hot water and low temperature heat exchanger produce forms gasifying agent, feeds in the gas generator.The coal gas that gas generator produces is transported to the industrial furnace coal gas burner, the used for industrial furnace air blast blasts high-temperature heat exchanger with normal temperature air, it is combustion-supporting that air after the preheating enters the industrial furnace burner, and the high-temperature flue gas of generation enters the industrial furnace external flue and high-temperature heat exchanger, low temperature heat exchanger heat exchange are discharged through chimney again.
Advantage of the present invention is: the multiple waste heat that utilizes industrial furnace of closed loop.The exhaust gas temperature of industrial furnace can be reduced to below 300 ℃, and hot-air has improved the temperature of gasifying agent simultaneously, has increased substantially the heat of gasification efficient and the intensity of gasification of gas generator.Adopt the gas generator of high temperature gasification agent to compare with the conventional producer of same specification, gas yield can improve 40%, and calorific value of gas can improve 10%, and gas exit pressure can be brought up to more than the 3000Pa, and gas temperature can reach more than 600 ℃.Warm-up combustion-supporting air has also improved the heating quality of industrial furnace and fallen the energy consumption of basic skill or training's industry stove, and the thermal efficiency of whole system is increased substantially, and drops into low output height, and is safe and reliable to operation.
Four, description of drawings:
Fig. 1 is the schematic diagram of the embodiment of the invention
Five, the specific embodiment:
As can be seen from Figure 1, two heat exchangers of polyphone assembling in the stove external flue 9 of combustion hot dirty gas industrial furnace 1, high-temperature flue gas elder generation and high-temperature heat exchanger 7 heat exchange that industrial furnace 1 produces, back and low temperature heat exchanger 8 heat exchange.It is combustion-supporting that the hot-air that high-temperature heat exchanger 7 produces enters industrial furnace, and the hot-air that low temperature heat exchanger 8 produces enters gas generator 2 as gasifying agent.Industrial furnace 1 adopts the steam of vaporization type of cooling output to be entered in the sub-cylinder 4 by drum 3; Producer blasts air in the cryogenic heat exchanger 8 with air blast 6, the vapor mixing that produces in hot-air and the sub-cylinder 4 forms saturated air, enter in the gas generator 2 as gasifying agent, hot dirty gas with charcoal reaction generation high heating value, be transported to hot dirty gas burner 10, used for industrial furnace air blast 5 blasts normal temperature air in the high-temperature heat-exchanging 7, air after the preheating enters in the hot dirty gas burner 10 combustion-supporting, and the high-temperature flue gas of generation enters in the stove external flue 9 and high-temperature heat-exchanging 7, cryogenic heat exchanger 8 heat exchange.
If what the industrial furnace cooling medium produced is hot water, hot water can be fed in the water jacket that gas generator carries the hot-air that produces from output steam and low temperature heat exchanger and form gasifying agent, feed gas generator and charcoal and react output coal gas.
Claims (3)
1, a kind of is that the industrial furnace residual heat of fuel utilizes closed-loop system with the producer gas, comprise gas generator, combustion hot dirty gas industrial furnace, heat exchanger etc., it is characterized by two heat exchangers of polyphone assembling in the stove external flue of industrial furnace, high-temperature flue gas elder generation and high-temperature heat exchanger heat exchange that industrial furnace produces, back and low temperature heat exchanger heat exchange; It is combustion-supporting that the hot-air that high-temperature heat exchanger produces enters industrial furnace, and the hot-air that low temperature heat exchanger produces enters gas generator as gasifying agent; The hot-air that vapours that the industrial furnace cooling medium produces or hot water and low temperature heat exchanger produce forms gasifying agent, feeds in the gas generator; The coal gas that gas generator produces is transported to the industrial furnace coal gas burner, and the used for industrial furnace air blast blasts high-temperature heat exchanger with normal temperature air, and it is combustion-supporting that the air after the preheating enters the industrial furnace burner.The high-temperature flue gas that produces enters the industrial furnace external flue and high-temperature heat exchanger, low temperature heat exchanger heat exchange are discharged through chimney again.
2, be that the industrial furnace residual heat of fuel utilizes closed-loop system with the producer gas as claim 1 a kind of, it is characterized by industrial furnace and adopt the steam of vaporization type of cooling output to enter in the sub-cylinder by drum; Producer blasts air in the cryogenic heat exchanger with air blast, and the hot-air of generation and the vapor mixing in the sub-cylinder form saturated air, enter in the gas generator as gasifying agent.
3, be that the industrial furnace residual heat of fuel utilizes closed-loop system with the producer gas as claim 1 a kind of, the hot water that the industrial furnace cooling medium produces, hot water can be fed in the water jacket that gas generator carries from output steam, the hot-air that produces with low temperature heat exchanger forms gasifying agent, feeds in the gas generator.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200410012463 CN1680767A (en) | 2004-08-03 | 2004-08-03 | Waste heat utilizing loop-closing system of industrial furnace with producer gas as fuel |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200410012463 CN1680767A (en) | 2004-08-03 | 2004-08-03 | Waste heat utilizing loop-closing system of industrial furnace with producer gas as fuel |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN1680767A true CN1680767A (en) | 2005-10-12 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
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| CN 200410012463 Pending CN1680767A (en) | 2004-08-03 | 2004-08-03 | Waste heat utilizing loop-closing system of industrial furnace with producer gas as fuel |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101063050B (en) * | 2007-05-14 | 2010-05-26 | 广东科达机电股份有限公司 | Coal gas production method |
| CN103398591A (en) * | 2013-08-18 | 2013-11-20 | 佛山市广旭节能自动化科技有限公司 | Waste heat utilization system for aluminium melting furnace |
| CN109059565A (en) * | 2018-07-26 | 2018-12-21 | 张孔明 | A kind of recovery system and method to discharge for Industrial Stoves from heat load |
| CN109200963A (en) * | 2018-09-05 | 2019-01-15 | 辽宁盛达环保科技发展有限公司 | Efficient coupling, Poly-generation, the activating coal gangue technique of low nitrogen |
-
2004
- 2004-08-03 CN CN 200410012463 patent/CN1680767A/en active Pending
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101063050B (en) * | 2007-05-14 | 2010-05-26 | 广东科达机电股份有限公司 | Coal gas production method |
| CN103398591A (en) * | 2013-08-18 | 2013-11-20 | 佛山市广旭节能自动化科技有限公司 | Waste heat utilization system for aluminium melting furnace |
| CN103398591B (en) * | 2013-08-18 | 2015-07-01 | 广东工业大学 | Waste heat utilization system for aluminium melting furnace |
| CN109059565A (en) * | 2018-07-26 | 2018-12-21 | 张孔明 | A kind of recovery system and method to discharge for Industrial Stoves from heat load |
| CN109200963A (en) * | 2018-09-05 | 2019-01-15 | 辽宁盛达环保科技发展有限公司 | Efficient coupling, Poly-generation, the activating coal gangue technique of low nitrogen |
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