CN202066197U - Heat accumulating type heating furnace capable of heating methane gas - Google Patents
Heat accumulating type heating furnace capable of heating methane gas Download PDFInfo
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- CN202066197U CN202066197U CN2010206893657U CN201020689365U CN202066197U CN 202066197 U CN202066197 U CN 202066197U CN 2010206893657 U CN2010206893657 U CN 2010206893657U CN 201020689365 U CN201020689365 U CN 201020689365U CN 202066197 U CN202066197 U CN 202066197U
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Abstract
The utility model relates to a heat accumulating type heating furnace capable of heating methane gas, which includes a combustor, a combustion chamber, a regenerative chamber, a circulating methane gas system, a combustion air intake system, a coal gas intake system and a flue gas system, wherein a low-temperature methane gas inlet pipe and a high-temperature methane gas outlet pipe are arranged on the two sides of a heat retainer respectively; the high-temperature methane gas outlet pipe is communicated with a mixing chamber; and a mixing chamber gas outlet is connected with a dry distillation furnace or a user through a connecting pipe. The heat accumulating type heating furnace has the benefits that in virtue of the heat which is generated by the fuel gas combustion in the heat accumulating type heating furnace and then transferred to the heat retainer, heat exchange is performed between the low-temperature methane gas and the heated heat retainer, so that high-temperature methane gas is obtained, as a result, the hot methane gas at constant temperature can be provided for the petroleum extraction in oil shale technology in the petrochemical industry or the user.
Description
Technical field
The utility model relates to a kind of device that heats Device in Gas, particularly a kind of recuperative heater that adopts the heating Device in Gas.
Background technology
The petrochemical industry oil shale extracts in the petroleum technology both at home and abroad at present, adopts combustion furnace and pipe heat exchanger technology heating Device in Gas mostly, and mainly there is following defective in this technology: because flue-gas temperature is high and wayward, and the easy scaling loss of heat-exchanging tube bundle, the life-span is short; The high temperature Device in Gas reduces heat exchange efficiency at the easy carbon deposit in tube bank surface, when the heat-exchanging tube bundle carbon deposit is serious, can cause tube bank to be stopped up, and heat transfer process was lost efficacy; For pipe heat exchanger, do not remove the effective ways of carbon deposit; The tube bank surface is carbon deposit easily, under the excess air condition, can burn, thus the scaling loss tube bank; The hot Device in Gas of sending presents cyclic fluctuation, can't keep the constant exit temperature.
The utility model content
The purpose of this utility model provides a kind of regenerator heating furnace that heats Device in Gas, the heat transferred heat storage that this device produces by the recuperative heater fuel gas buring, the heat storage heat exchange of low temperature Device in Gas and heating becomes the high temperature Device in Gas, and provide the safety anti-explosive measure, and can effectively remove the carbon deposit in the heating furnace.
For achieving the above object, the utility model is achieved through the following technical solutions:
A kind of recuperative heater that heats Device in Gas, comprise burner, combustion chamber, regenerator, circulating mash gas gas system, combustion air gas handling system, gas inlet system, flue gas system, circulating mash gas gas system comprises low temperature gas inlet pipeline, regenerator heat storage, high temperature gas export pipeline, mixing chamber, low temperature gas inlet pipeline connects heat storage one side, is provided with low temperature gas inlet stop valve on the pipeline of low temperature gas inlet; The heat storage opposite side connects high temperature gas export pipeline, is provided with high temperature gas export stop valve on high temperature gas export pipeline; High temperature gas export pipeline is connected with mixing chamber, and mixing chamber also is connected with low temperature gas inlet pipeline by connecting pipe, is provided with low temperature gas mixing stop valve and low temperature gas mixing control valve on connecting pipe; The mixing chamber gas vent is connected with gas retort or user by connecting pipe.
The combustion air gas handling system comprises combustion fan, combustion fan intake air control valve, combustion air control valve, combustion air inlet stop valve, air duct, combustion fan is connected with burner by air duct, and the air duct that is connected with burner inlet is provided with combustion air control valve and combustion air inlet stop valve; The air intake side of combustion fan is provided with combustion fan intake air control valve.
The gas inlet system comprises gas piping, gas entry stop valve, gas regulator, and gas piping is connected with burner, and the gas piping that is connected with burner inlet is provided with gas entry stop valve and gas regulator.
Flue gas system comprises flue collector, flue gas blower fan, exhanst gas outlet stop valve, and flue collector is connected with regenerator bottom, and flue collector connects the flue gas blower fan, is provided with the exhanst gas outlet stop valve on flue collector; Flue collector also is connected with combustion fan by connecting pipe, is provided with combustion fan inlet flue gas stop valve and combustion fan inlet flue gas control valve on this connecting pipe.
Described heating furnace can adopt top ignition heating furnace, external-burning heating furnace or internal combustion type heating furnace.
The flue of described flue gas system is responsible for or arm is provided with rupture pressure disc.
Compared with prior art, the beneficial effects of the utility model are:
The heat transferred heat storage that this device produces by the recuperative heater fuel gas buring, the heat storage heat exchange of low temperature Device in Gas and heating becomes the high temperature Device in Gas, and the safety anti-explosive measure is provided, and can effectively remove the carbon deposit in the heating furnace; Can be petrochemical industry oil shale extraction petroleum technology or user provides the hot methane gas of steady temperature.
Description of drawings
Fig. 1 is a structural representation of the present utility model;
Fig. 2 is the outline drawing of top ignition heating furnace.
The specific embodiment
Be example with the top ignition heating furnace below, the utility model is described in further detail in conjunction with the accompanying drawings:
See Fig. 1, Fig. 2, a kind of recuperative heater that heats Device in Gas, comprise ceramic burner 3, combustion chamber 4, regenerator 5, circulating mash gas gas system, combustion air gas handling system, gas inlet system, flue gas system, burner 3, combustion chamber 4, regenerator 5 are connected successively.Heating furnace can adopt top ignition heating furnace (as shown in Figure 2), external-burning heating furnace or internal combustion type heating furnace.
Circulating mash gas gas system comprises low temperature gas inlet pipeline 22, regenerator heat storage 23, high temperature gas export pipeline 24, mixing chamber 2, low temperature gas inlet pipeline 22 connects heat storage 23 1 sides, is provided with low temperature gas inlet stop valve 6 on low temperature gas inlet pipeline 22; Heat storage 23 opposite sides connect high temperature gas export pipeline 24, are provided with high temperature gas export stop valve 9 on high temperature gas export pipeline 24; High temperature gas export pipeline 22 is connected with mixing chamber 2, and mixing chamber 2 also is connected with low temperature gas inlet pipeline 22 by connecting pipe 28, is provided with low temperature gas mixing stop valve 7 and low temperature gas mixing control valve 8 on connecting pipe 28; Mixing chamber 2 gas vents are communicated with gas retort by connecting pipe.
The combustion air gas handling system comprises combustion fan 16, combustion fan intake air control valve 17, combustion air control valve 11, combustion air inlet stop valve 10, air duct 25, combustion fan 16 is connected with ceramic burner 3 by air duct 25, and the air duct that is connected with ceramic burner 3 inlets is provided with combustion air control valve 11 and combustion air inlet stop valve 10; The air intake side of combustion fan 16 is provided with combustion fan intake air control valve 17.
The gas inlet system comprises gas piping 26, gas entry stop valve 12, gas regulator 13, and gas piping 26 is connected with ceramic burner, and the gas piping that is connected with ceramic burner 3 inlets is provided with gas entry stop valve 12 and gas regulator 13.
Flue gas system comprises flue collector 15, flue gas blower fan 20, exhanst gas outlet stop valve 14, and flue collector 15 is connected with regenerator bottom, and flue collector 15 connects flue gas blower fan 20, is provided with exhanst gas outlet stop valve 14 on flue collector 15.Flue collector 15 also is connected with combustion fan 16 by connecting pipe 27, is provided with combustion fan inlet flue gas stop valve 18 and combustion fan inlet flue gas control valve 19 on this connecting pipe 27.
The course of work of this device is:
1) burning stage regenerator; After combustion air and coal gas entered burner 3, through fully being mixed into combustion chamber 4 burnings, the high-temperature flue gas that burning produces entered regenerator 5 with heat storage 23 heating, and the low-temperature flue gas after the heat exchange is sent through flue collector 15;
2) the air-supply heating period; The low temperature Device in Gas enters regenerator 5, the heat storage 23 of flowing through is heated to high temperature, the high temperature Device in Gas that forms enters mixing chamber 2 through high temperature gas export pipeline 24, mixes with the low temperature Device in Gas in mixing chamber 2 high temperature Device in Gas, forms the required constant temperature Device in Gas output of user.
3) described burning stage regenerator and air-supply stage are carried out cycle alternation continuously.
For the needs of keeping the safety in production and overhauling, heating system generally is made up of 3 heating furnaces and 1 mixing chamber and corresponding establishment, 3 heating furnaces adopt 2 burnings, and (promptly 2 heating furnaces are in the burning phase, checker brick are heated) 1 send that (promptly 1 heating furnace is on air, Device in Gas is heated) working system, or when heating furnace maintenance wherein, but all the other 2 heating furnaces operate as normal still adopts 1 to burn a working system of sending this moment.
When heating furnace is in the burning stage regenerator when (burning phase), low temperature gas inlet stop valve 6, high temperature gas export stop valve 9 are closed, combustion air inlet stop valve 10, gas entry stop valve 12, exhanst gas outlet stop valve 14 are opened, after combustion air and coal gas enter ceramic burner 3, after fully mixing, enter combustion chamber 4 burnings, the high-temperature flue gas that burning produces enters regenerator 5 checker brick heat storage 23 is heated to the temperature that needs, and the low-temperature flue gas after the heat exchange is delivered to other users (as oven dry etc.) through flue collector 15.
When heating furnace is in air-supply when heating period (period of heating), low temperature gas inlet stop valve 6, high temperature gas export stop valve 9 are opened, combustion air inlet stop valve 10, gas entry stop valve 12, exhanst gas outlet stop valve 14 are closed, the low temperature Device in Gas enters regenerator 5 by the regenerator below, be heated to high temperature when flowing through checker brick heat storage 23, the high temperature Device in Gas enters mixing chamber 2 through connecting pipe, is mixed into the constant temperature Device in Gas with low temperature Device in Gas from connecting pipe 28 and gives gas retort or other users.
Because intrasystem carbon deposit is directly proportional with hot gas temperature, so the combustion chambers burn temperature is unsuitable too high, and the utility model adopts the method for excess air and blending flue gas to reduce the temperature of combustion chamber.Control combustion chambers burn temperature and excess air ratio by control combustion fan intake air control valve 17, combustion fan inlet flue gas stop valve 18, combustion fan inlet flue gas control valve 19.
When changing stove, inflammable and explosive Device in Gas contacts with air, possesses explosion condition, prevents flammable gas explosion by residual gas gas in control flue gas oxygen content, the recovery furnace, method that rupture disk is set.
By the period of heating when the burning phase is changed stove, because of residual gas in the stove is the flammable Device in Gas of high temperature, after entering, combustion air can produce partial combustion even blast, for preventing gas explosion, the utility model is taked following measure: the one, and the control combustion intensity, promptly control combustion air flow (air mass flow for normal when burning stove flow 50% and following), close gas entry stop valve 12 this moment, low temperature gas inlet stop valve 6, high temperature gas export stop valve 9 is opened exhanst gas outlet stop valve 14, combustion air inlet stop valve 10, regulate combustion air control valve 11 with the control combustion air flow.The 2nd, force in stove, to feed flue gas and drive residual gas gas, promptly when changing stove, close low temperature gas inlet stop valve 6, gas entry stop valve 12, combustion air inlet stop valve 10, exhanst gas outlet stop valve 14, open high temperature gas export stop valve 9, start flue gas blower fan 20, force to feed flue gas from regenerator below, residual gas in the stove is driven away to high temperature gas export pipeline 24 changed over to the burning phase again.Establish oxygen detection to determine in the stove whether residual gas being arranged at hot gas export arm.
By the burning phase when changing stove the period of heating, residual gas is a high-temperature flue gas in the stove, contain 3% the oxygen of having an appointment in the flue gas, circulating mash gas gas enters in the stove also partial combustion can take place, even blast, change simultaneously between the campaign that remaining flue gas enters in the circulating mash gas gas in the stove, circulating mash gas makings amount is affected.For preventing gas explosion and guaranteeing that circulating mash gas makings amount is not subjected to the influence of flue gas, the utility model is taked following measure: the one, drive flue gas to flue collector with the burning producer gas when changing stove, promptly close combustion air inlet stop valve 10, low temperature gas inlet stop valve 6, high temperature gas export stop valve 9, open gas entry stop valve 12, exhanst gas outlet stop valve 14, residual flue gas in the stove is driven to flue collector, changed stove then and change the period of heating over to.Oxygen determination instrument and gas composition are set on the flue arm measure (measure CO or H
2Concentration) control closing of gas entry stop valve 12, exhanst gas outlet stop valve 14, or time-delay closing.
Its two be by the burning phase when changing stove the period of heating, reduce coefficient of excess air by reducing combustion fan intake air control valve 17 apertures in advance, the residual exhaust gases oxygen content is lower than safe concentration in the control stove, and oxygen determination instrument detecting oxygen content is to control cold stoking or to change stove on the flue arm.It three is that rupture pressure disc 21 is set on flue collector, and when in a single day system blasts, when system pressure transfinited, rupture pressure disc 21 was opened pressure releases automatically, to guarantee the safety of whole system.
About regular removing carbon deposit, the utility model adopts the scaling loss method to remove carbon deposit.Be generally the periodic inspection time of utilizing, the cleaning of 1 year concentrated off-line (being shutdown maintenance) once.The basic skills of cleaning carbon deposit is when stove inner combustion chamber temperature is higher than 600 ℃, close low temperature gas inlet stop valve 6, high temperature gas export stop valve 9, gas entry stop valve 12, unlatching exhanst gas outlet stop valve 14, combustion air inlet stop valve 10, by the combustion fan Final 16 system air is fed combustion chamber 4, the air that feeds and the carbon deposit generation combustion reaction on refractory brick surface, carbon deposit is burnt, and flue gas enters atmosphere by chimney.
Claims (6)
1. recuperative heater that heats Device in Gas, it is characterized in that, comprise burner, combustion chamber, regenerator, circulating mash gas gas system, combustion air gas handling system, gas inlet system, flue gas system, circulating mash gas gas system comprises low temperature gas inlet pipeline, regenerator heat storage, high temperature gas export pipeline, mixing chamber, low temperature gas inlet pipeline connects heat storage one side, is provided with low temperature gas inlet stop valve on the pipeline of low temperature gas inlet; The heat storage opposite side connects high temperature gas export pipeline, is provided with high temperature gas export stop valve on high temperature gas export pipeline; High temperature gas export pipeline is connected with mixing chamber, and mixing chamber also is connected with low temperature gas inlet pipeline by connecting pipe, is provided with low temperature gas mixing stop valve and low temperature gas mixing control valve on connecting pipe; The mixing chamber gas vent is connected with gas retort or user by connecting pipe.
2. a kind of recuperative heater that heats Device in Gas according to claim 1, it is characterized in that, the combustion air gas handling system comprises combustion fan, combustion fan intake air control valve, combustion air control valve, combustion air inlet stop valve, air duct, combustion fan is connected with burner by air duct, and the air duct that is connected with burner inlet is provided with combustion air control valve and combustion air inlet stop valve; The air intake side of combustion fan is provided with combustion fan intake air control valve.
3. a kind of recuperative heater that heats Device in Gas according to claim 1, it is characterized in that, the gas inlet system comprises gas piping, gas entry stop valve, gas regulator, gas piping is connected with burner, and the gas piping that is connected with burner inlet is provided with gas entry stop valve and gas regulator.
4. a kind of recuperative heater that heats Device in Gas according to claim 1, it is characterized in that, flue gas system comprises flue collector, flue gas blower fan, exhanst gas outlet stop valve, flue collector is connected with regenerator bottom, flue collector connects the flue gas blower fan, is provided with the exhanst gas outlet stop valve on flue collector; Flue collector also is connected with combustion fan by connecting pipe, is provided with combustion fan inlet flue gas stop valve and combustion fan inlet flue gas control valve on this connecting pipe.
5. a kind of recuperative heater that heats Device in Gas according to claim 1 is characterized in that, it is characterized in that, described heating furnace can adopt top ignition heating furnace, external-burning heating furnace or internal combustion type heating furnace.
6. a kind of recuperative heater that heats Device in Gas according to claim 4 is characterized in that, the flue of described flue gas system is responsible for or arm is provided with rupture pressure disc.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010206893657U CN202066197U (en) | 2010-12-30 | 2010-12-30 | Heat accumulating type heating furnace capable of heating methane gas |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010206893657U CN202066197U (en) | 2010-12-30 | 2010-12-30 | Heat accumulating type heating furnace capable of heating methane gas |
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| Publication Number | Publication Date |
|---|---|
| CN202066197U true CN202066197U (en) | 2011-12-07 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2010206893657U Expired - Fee Related CN202066197U (en) | 2010-12-30 | 2010-12-30 | Heat accumulating type heating furnace capable of heating methane gas |
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| Country | Link |
|---|---|
| CN (1) | CN202066197U (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104197733A (en) * | 2014-08-27 | 2014-12-10 | 鞍钢集团工程技术有限公司 | High-temperature sintering carbon device and technology of heat accumulating type circulating gas heating furnace |
| CN104906928A (en) * | 2015-05-25 | 2015-09-16 | 北京扬德环境科技股份有限公司 | Ventilation air methane oxidation device |
| CN108278626A (en) * | 2018-01-17 | 2018-07-13 | 山东钢铁集团日照有限公司 | A kind of new type of safe anti-explosion exhaust fume device |
| CN111174423A (en) * | 2020-02-05 | 2020-05-19 | 鞍钢集团工程技术有限公司 | High-temperature oxygen-enriched heating furnace for extracting vanadium and titanium from vanadium-titanium slag and operation method thereof |
| CN114777334A (en) * | 2022-05-25 | 2022-07-22 | 中冶赛迪工程技术股份有限公司 | Combined gas heating system and heating method |
-
2010
- 2010-12-30 CN CN2010206893657U patent/CN202066197U/en not_active Expired - Fee Related
Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104197733A (en) * | 2014-08-27 | 2014-12-10 | 鞍钢集团工程技术有限公司 | High-temperature sintering carbon device and technology of heat accumulating type circulating gas heating furnace |
| CN104197733B (en) * | 2014-08-27 | 2016-02-03 | 鞍钢集团工程技术有限公司 | Regenerative cycles device in Gas heating furnace high-temperature burns carbon distribution device and technique |
| CN104906928A (en) * | 2015-05-25 | 2015-09-16 | 北京扬德环境科技股份有限公司 | Ventilation air methane oxidation device |
| CN104906928B (en) * | 2015-05-25 | 2017-02-01 | 北京扬德环境科技股份有限公司 | Ventilation air methane oxidation device |
| CN108278626A (en) * | 2018-01-17 | 2018-07-13 | 山东钢铁集团日照有限公司 | A kind of new type of safe anti-explosion exhaust fume device |
| CN111174423A (en) * | 2020-02-05 | 2020-05-19 | 鞍钢集团工程技术有限公司 | High-temperature oxygen-enriched heating furnace for extracting vanadium and titanium from vanadium-titanium slag and operation method thereof |
| CN114777334A (en) * | 2022-05-25 | 2022-07-22 | 中冶赛迪工程技术股份有限公司 | Combined gas heating system and heating method |
| CN114777334B (en) * | 2022-05-25 | 2024-05-07 | 中冶赛迪工程技术股份有限公司 | Combined gas heating system and heating method |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20111207 Termination date: 20151230 |
|
| EXPY | Termination of patent right or utility model |