CN102777924A - Residual heat utilizing process and device of gas conduction oil furnace - Google Patents
Residual heat utilizing process and device of gas conduction oil furnace Download PDFInfo
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- CN102777924A CN102777924A CN2012102359452A CN201210235945A CN102777924A CN 102777924 A CN102777924 A CN 102777924A CN 2012102359452 A CN2012102359452 A CN 2012102359452A CN 201210235945 A CN201210235945 A CN 201210235945A CN 102777924 A CN102777924 A CN 102777924A
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E20/00—Combustion technologies with mitigation potential
- Y02E20/34—Indirect CO2mitigation, i.e. by acting on non CO2directly related matters of the process, e.g. pre-heating or heat recovery
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Abstract
The invention discloses a residual heat utilizing process and device of a gas conduction oil furnace, relates to a process and device utilizing hot waste gas residual heat after gas of the gas conduction oil furnace is combusted, and belongs to the technical field of combustible gas and combustion supporting in order to solve the problems of poor safety, higher investment cost and complex process flow of the existing hot waste gas residual heat utilization technology of the gas conduction oil furnace. The device comprises the gas conduction oil furnace, a heat exchanger, a fan and a chimney, wherein the upper end of the gas conduction oil furnace is provided with the heat exchanger, the upper end of the heat exchanger is provided with the chimney, an outlet of the hot waste gas generated by the gas conduction oil furnace is communicated with a first inlet of the heat exchanger, a first outlet of the heat exchanger is communicated with the chimney, an outlet of the fan is communicated with a second inlet of the heat exchanger, and a second outlet of the heat exchanger is communicated with a combustion chamber of the gas conduction oil furnace. The process and the device disclosed by the invention are suitable for recycling the hot waste gas residual heat of the gas conduction oil furnace in a coking plant.
Description
Technical field
The present invention relates to a kind of gas-fired after heat waste gas heat utilization technology and device of combustion gas heat-conducting oil furnace, belong to fuel gas (blast furnace gas, coke-stove gas and natural gas) and combustion supporting technology field.
Background technology
At present, coke-oven plant's combustion gas heat-conducting oil furnace produces the waste gas (mainly being carbon dioxide and nitrogen) more than 200 ℃ after with gas-fired, and a kind of mode is directly to discharge atmosphere; The waste heat of waste gas can not obtain good recycling, energy waste, and another kind of mode is near heat-conducting oil furnace, to build air heat exchanger and chimney separately; So that heating by the exhaust gases is recycled, this mode leads to air heat exchanger through air-introduced machine with waste gas, in heat exchanger through exchange heat; The burner that hot blast is delivered to heat-conducting oil furnace is used for combustion-supporting, recycles though can realize heating by the exhaust gases, and in a single day air-introduced machine breaks down; High-temp waste gas in the heat-conducting oil furnace can not be drawn, and hot oil furnace is very easily blasted, and causes a serious accident; Security is relatively poor; Simultaneously, it is complicated that technology is recycled in the preheating of this mode, and the technological equipment investment cost is higher.
Summary of the invention
The objective of the invention is for there is poor stability in the hot waste gas UTILIZATION OF VESIDUAL HEAT IN technology that solves existing combustion gas heat-conducting oil furnace, cost of investment is higher and technological process than complicated problems, and then provide a kind of combustion gas residual heat of heat-conducting oil furnace to utilize technology and device.
The present invention addresses the above problem the technical scheme of taking to be:
A kind of combustion gas residual heat of heat-conducting oil furnace of the present invention utilizes technology to be: the hot waste gas that produces after the gas-fired in the combustion gas heat-conducting oil furnace gets into heat exchanger; Cold air is delivered to heat exchanger through blower fan; Get into hot waste gas and the cold air generation heat exchange that gets into heat exchanger in the heat exchanger; Discharge after hot waste gas cooling back gets into chimney, the combustion chamber that the hot gas that cold air heating back produces returns the combustion gas heat-conducting oil furnace provides combustion-supporting, and the temperature of said hot waste gas is 200 ℃～400 ℃; The temperature of control cold air is-30 ℃～90 ℃, and the temperature of the hot gas that cold air heating back produces is 90 ℃～300 ℃.
A kind of combustion gas residual heat of heat-conducting oil furnace of realization of the present invention utilizes the device of technology to comprise combustion gas heat-conducting oil furnace, heat exchanger, blower fan and chimney; The upper end of combustion gas heat-conducting oil furnace is provided with heat exchanger; The upper end of heat exchanger is provided with chimney; The outlet of the hot waste gas that the combustion gas heat-conducting oil furnace produces is connected with first import of heat exchanger; First outlet of heat exchanger is connected with chimney, and the outlet of blower fan is connected with second import of heat exchanger, and second outlet of heat exchanger is connected with the combustion chamber of combustion gas heat-conducting oil furnace.
The invention has the beneficial effects as follows: the upper end that the present invention is utilized in the combustion gas heat-conducting oil furnace installs heat exchanger additional, and the upper end of heat exchanger installs chimney additional, and the hot waste gas of lightweight directly rises in the heat exchanger; Carrying out the technology of heat exchange with the air of delivering to heat exchanger through blower fan and carry out heat recovery, is cold air because blower fan is delivered to the gas of heat exchanger, makes the heat exchanger continuous negative pressure that produces of moment; Also impel hot waste gas constantly to get into heat exchanger; Compare existing employing air-introduced machine waste hot gas is caused the UTILIZATION OF VESIDUAL HEAT IN technology of heat exchanger, technological process is simple, and floor space is little; Cost of investment is lower; There is not air-introduced machine in apparatus of the present invention because the problem that breaks down and cause hot oil furnace to be blasted can not produce major accident owing to do not need air-introduced machine; Process unit is safe and reliable; The combustion chamber that hot gas after utilizing apparatus of the present invention to reclaim is sent into the combustion gas heat-conducting oil furnace provides combustion-supporting or makes other purposes usefulness, and the combustion-supporting hot gas that utilizes apparatus of the present invention to offer the combustion gas heat-conducting oil furnace helps practicing thrift coal gas, and UTILIZATION OF VESIDUAL HEAT IN technology and equipment overall operation cost significantly reduce.
Description of drawings
Fig. 1 is a combustion gas residual heat of heat-conducting oil furnace use device structural representation of the present invention.
The specific embodiment
The specific embodiment one: a kind of combustion gas residual heat of heat-conducting oil furnace of this embodiment utilizes technology: the hot waste gas that produces after the gas-fired in the combustion gas heat-conducting oil furnace 1 gets into heat exchanger 2; Cold air is delivered to heat exchanger 2 through blower fan 3; Get into hot waste gas and the cold air generation heat exchange that gets into heat exchanger 2 in the heat exchanger 2; Hot waste gas cooling back gets into chimney 4 backs and discharges, and the combustion chamber that the hot gas that cold air heating back produces returns combustion gas heat-conducting oil furnace 1 provides combustion-supporting, and the temperature of said hot waste gas is 200 ℃～400 ℃; The temperature of control cold air is-30 ℃～90 ℃, and the temperature of the hot gas that cold air heating back produces is 90 ℃～300 ℃.
The specific embodiment two: the temperature of the control cold air of this embodiment is-25 ℃～80 ℃.So be provided with, satisfy actual needs.Other is identical with the specific embodiment one.
The specific embodiment three: combine Fig. 1 that this embodiment is described; A kind of combustion gas residual heat of heat-conducting oil furnace of the realization specific embodiment one of this embodiment and any embodiment of two utilizes the device of technology to comprise combustion gas heat-conducting oil furnace 1, heat exchanger 2, blower fan 3 and chimney 4; The upper end of combustion gas heat-conducting oil furnace 1 is provided with heat exchanger 2; The upper end of heat exchanger 2 is provided with chimney 4; The outlet of the hot waste gas that combustion gas heat-conducting oil furnace 1 produces is connected with the first import 2-1 of heat exchanger 2; The first outlet 2-2 of heat exchanger 2 is connected with chimney 4, and the outlet of blower fan 3 is connected with the second import 2-3 of heat exchanger 2, and the second outlet 2-4 of heat exchanger 2 is connected with the combustion chamber 1-1 of combustion gas heat-conducting oil furnace 1.
The specific embodiment four: combine Fig. 1 that this embodiment is described, the said heat exchanger 2 of this embodiment is a shell-and-tube heat exchanger.So be provided with, satisfy actual needs.Other is identical with the specific embodiment three.
Claims (4)
1. a combustion gas residual heat of heat-conducting oil furnace utilizes technology; It is characterized in that: the hot waste gas that produces after the gas-fired in the combustion gas heat-conducting oil furnace (1) gets into heat exchanger (2); Cold air is delivered to heat exchanger (2) through blower fan (3), gets into hot waste gas and the cold air generation heat exchange that gets into heat exchanger (2) in the heat exchanger (2), and hot waste gas cooling back gets into chimney (4) back and discharges; The combustion chamber that the hot gas that cold air heating back produces returns combustion gas heat-conducting oil furnace (1) provides combustion-supporting; The temperature of said hot waste gas is 200 ℃～400 ℃, and the temperature of control cold air is-30 ℃～90 ℃, and the temperature of the hot gas that cold air heating back produces is 90 ℃～300 ℃.
2. a kind of combustion gas residual heat of heat-conducting oil furnace according to claim 1 utilizes technology, it is characterized in that: the temperature of control cold air is-25 ℃～80 ℃.
3. a kind of combustion gas residual heat of heat-conducting oil furnace of realizing any claim in the claim 1 and 2 utilizes the device of technology; Said device comprises combustion gas heat-conducting oil furnace (1), heat exchanger (2), blower fan (3) and chimney (4); It is characterized in that: the upper end of combustion gas heat-conducting oil furnace (1) is provided with heat exchanger (2); The upper end of heat exchanger (2) is provided with chimney (4); The outlet of the hot waste gas that combustion gas heat-conducting oil furnace (1) produces is connected with first import (2-1) of heat exchanger (2); First outlet (2-2) of heat exchanger (2) is connected with chimney (4), and the outlet of blower fan (3) is connected with second import (2-3) of heat exchanger (2), and second outlet (2-4) of heat exchanger (2) is connected with the combustion chamber (1-1) of combustion gas heat-conducting oil furnace (1).
4. a kind of combustion gas residual heat of heat-conducting oil furnace according to claim 3 utilizes the device of technology, it is characterized in that: said heat exchanger (2) is a shell-and-tube heat exchanger.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
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| CN2012102359452A CN102777924A (en) | 2012-07-09 | 2012-07-09 | Residual heat utilizing process and device of gas conduction oil furnace |
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| Application Number | Priority Date | Filing Date | Title |
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| CN2012102359452A CN102777924A (en) | 2012-07-09 | 2012-07-09 | Residual heat utilizing process and device of gas conduction oil furnace |
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| CN102777924A true CN102777924A (en) | 2012-11-14 |
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| CN2012102359452A Pending CN102777924A (en) | 2012-07-09 | 2012-07-09 | Residual heat utilizing process and device of gas conduction oil furnace |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108917180A (en) * | 2018-08-17 | 2018-11-30 | 盐城市轩源加热设备科技有限公司 | A kind of gas heat conducting oil furnace |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP4332768B2 (en) * | 2000-04-25 | 2009-09-16 | 株式会社Ｉｈｉ | Waste combustion equipment |
| CN102072664A (en) * | 2011-02-22 | 2011-05-25 | 刘智泉 | Efficient thermal treatment furnace for recovering and utilizing flue gas waste heat |
| CN102401561A (en) * | 2011-11-11 | 2012-04-04 | 无锡市莱达热工工程有限公司 | Energy-saving chamber-type heating furnace |
| CN202216562U (en) * | 2011-08-11 | 2012-05-09 | 华尔润玻璃产业股份有限公司 | Tube furnace waste heat utilization device |
-
2012
- 2012-07-09 CN CN2012102359452A patent/CN102777924A/en active Pending
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP4332768B2 (en) * | 2000-04-25 | 2009-09-16 | 株式会社Ｉｈｉ | Waste combustion equipment |
| CN102072664A (en) * | 2011-02-22 | 2011-05-25 | 刘智泉 | Efficient thermal treatment furnace for recovering and utilizing flue gas waste heat |
| CN202216562U (en) * | 2011-08-11 | 2012-05-09 | 华尔润玻璃产业股份有限公司 | Tube furnace waste heat utilization device |
| CN102401561A (en) * | 2011-11-11 | 2012-04-04 | 无锡市莱达热工工程有限公司 | Energy-saving chamber-type heating furnace |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108917180A (en) * | 2018-08-17 | 2018-11-30 | 盐城市轩源加热设备科技有限公司 | A kind of gas heat conducting oil furnace |
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Application publication date: 20121114 |