CN203549799U - Combustion device for heating oven and heating oven with same - Google Patents
Combustion device for heating oven and heating oven with same Download PDFInfo
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- CN203549799U CN203549799U CN201320623739.9U CN201320623739U CN203549799U CN 203549799 U CN203549799 U CN 203549799U CN 201320623739 U CN201320623739 U CN 201320623739U CN 203549799 U CN203549799 U CN 203549799U
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- air
- gas
- regenerator
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- heating furnace
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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
Abstract
The utility model discloses a combustion device for a heating oven and the heating oven with the combustion device. The heating oven comprises an oven body. The combustion device comprises an air heat accumulation chamber and a fuel gas heat accumulation chamber, wherein the air heat accumulation chamber is internally provided with a first heat accumulator, an air port is formed in the air accumulator for feeding combustion air and discharging exhaust gas of air, and an air nozzle is formed in the air accumulation chamber for feeding the combustion air after heat exchange with the first accumulator into the oven body; the fuel gas heat accumulation chamber is internally provided with a second heat accumulator, a fuel gas port is formed in the fuel gas heat accumulation chamber for feeding fuel gas and discharging exhaust gas of fuel gas, and a fuel gas nozzle is formed in the fuel gas heat accumulator for feeding the fuel gas after heat exchange with the second heat accumulator into the oven body. According to the combustion device disclosed by the utility model, the combustion air and the fuel gas are mixed in the oven body and then are directly used for combustion, so that local high temperature can be reduced, the emission of harmful pollutants is reduced, and the service life of the nozzle is prolonged.
Description
Technical field
The utility model relates to field of combustion technology, especially relates to a kind of burner for heating furnace and has its heating furnace.
Background technology
In industrial production, surpass more than 1800 ℃ superhigh temperature heating, smelting, general employing electric furnace, however fuel is converted into the efficiency of electric energy and only has 30% left and right, after again electric energy conversion being become to heat energy, gross efficiency is less than 30%, and this runs counter to the development spirit that national energy-saving reduces discharging.Burner is smelted in traditional combustion gas, with fuel gas with low heat value, furnace temperature can only be elevated to and be less than 1400 ℃ of left and right, does not reach technological requirement.
In addition, in superhigh temperature heating, smelting process, in the flue gas of generation, contain a large amount of dust, and temperature is very high, if dust flue gas directly discharges, both pollutes the environment, and can take away a large amount of sensible heats again, causes the significant wastage of resource, the energy.
Utility model content
The utility model is intended at least solve one of technical problem existing in prior art.For this reason, to be to propose temperature in a kind of stove high and meet the burner for heating furnace of technological requirement for an object of the present utility model.
Another object of the present utility model is to propose a kind of heating furnace with above-mentioned burner.
According to the burner for heating furnace of the utility model first aspect embodiment, described heating furnace comprises body of heater, described burner comprises: air regenerator, in described air regenerator, be provided with the first heat storage, on described air regenerator, be formed with air scoop to pass into combustion air and to discharge air off gas, on described air regenerator, be formed with air port with by with described the first heat storage heat exchange after combustion air pass in described body of heater; With regenerator gas chamber, indoor second heat storage that is provided with of described regenerator gas, on described regenerator gas chamber, be formed with gas port to pass into combustion gas and to discharge combustion gas waste gas, on described regenerator gas chamber, be formed with combustion gas spout with by with described the second heat storage heat exchange after combustion gas pass in described body of heater.
According to the burner for heating furnace of the utility model embodiment, combustion air and combustion gas etc. mixes in body of heater, then directly burns, and can reduce local high temperature, reduces the discharge of noxious pollutant, has extended the service life of burner.
In addition, according to the burner for heating furnace of the present utility model, also can there is following additional technical feature:
According to an embodiment of the present utility model, on the path being connected with described gas port with described air scoop, be respectively equipped with reversal valve.Thus, by reversal valve is set, can be respectively used to control the commutation of combustion air and air off gas, combustion gas and combustion gas waste gas.
Alternatively, described combustion air comprises the oxygen of air and predetermined ratio, and the upstream of the described reversal valve of the path being connected with described air scoop is provided with gas mixer so that described air and described oxygen mix is even.Thus, by gas mixer is set, in air, blending oxygen carries out outward at body of heater, thereby has guaranteed the uniformity of mixing, and makes the atmosphere in body of heater more be easy to control, and can reduce local atmosphere inhomogeneities, improves and smelts lumber recovery.
According to an embodiment of the present utility model, between described air regenerator and described air port, be respectively equipped with device for recovering powder between described regenerator gas chamber and described combustion gas spout.Thus, by device for recovering powder is set, can carry out separation recovery waste heat resource to the dust of high-temperature dust-containing flue gas, life-span that simultaneously can prolonging combustion device also reduces the discharge of dust.
Further, described device for recovering powder is provided with the dust collection tapping equipment communicating with it.Thus, by dust collection tapping equipment is set, dust collection tapping equipment is for collecting the dust of being separated by two high-temperature dust retracting devices, and the discontinuous sealed discharging of realization to dust.
Alternatively, respectively with described the first heat storage and described the second heat storage heat exchange after combustion air and the temperature of combustion gas all more than 1500 ℃, respectively with described the first heat storage and described the second heat storage heat exchange after the temperature of flue gas below 200 ℃.
Heating furnace according to the utility model second aspect embodiment, comprising: body of heater, and described body of heater has air spray orifice and gas jet orifice, and described air spray orifice and described gas jet orifice communicate with described air port and described combustion gas spout respectively; With according to the burner for heating furnace of the above-mentioned first aspect embodiment of the utility model, wherein said burner communicates with described body of heater.
Further, between described air spray orifice and described gas jet orifice at an angle.Thus, by designing combustion gas and combustion air, spray mixing angle, in body of heater, smoke backflow circulation of self-assembling formation, is conducive to realize the abundant burning of fuel, has improved the utilization rate of fuel.
Alternatively, the distance away between one end of described heater of described air spray orifice and described gas jet orifice is less than the distance between one end of the described heater of vicinity of described air spray orifice and described gas jet orifice.
According to an embodiment of the present utility model, described air regenerator and described regenerator gas chamber are respectively two, and described in one of them, air regenerator and a described regenerator gas chamber are when combustion period, and described in another, air regenerator and a described regenerator gas chamber are in the accumulation of heat cycle.
Alternatively, described in each, combustion period and the duration in described accumulation of heat cycle are 20s～300s.
Alternatively, described body of heater is made by refractory material.
Additional aspect of the present utility model and advantage in the following description part provide, and part will become obviously from the following description, or recognize by practice of the present utility model.
Accompanying drawing explanation
Above-mentioned and/or additional aspect of the present utility model and advantage accompanying drawing below combination obviously and is easily understood becoming the description of embodiment, wherein:
Fig. 1 is according to the schematic diagram of the burner for heating furnace of an embodiment of the utility model;
Fig. 2 is another schematic diagram of the burner shown in Fig. 1.
The specific embodiment
Describe embodiment of the present utility model below in detail, the example of described embodiment is shown in the drawings, and wherein same or similar label represents same or similar element or has the element of identical or similar functions from start to finish.Below by the embodiment being described with reference to the drawings, be exemplary, only for explaining the utility model, and can not be interpreted as restriction of the present utility model.
In description of the present utility model, it will be appreciated that, term " " center ", " laterally ", " on ", D score, " front ", " afterwards ", " left side ", " right side ", " vertically ", " level ", " top ", " end ", " interior ", orientation or the position relationship of indications such as " outward " are based on orientation shown in the drawings or position relationship, only the utility model and simplified characterization for convenience of description, rather than device or the element of indication or hint indication must have specific orientation, with specific orientation structure and operation, therefore can not be interpreted as restriction of the present utility model.In addition, term " first ", " second " be only for describing object, and can not be interpreted as indication or hint relative importance or the implicit quantity that indicates indicated technical characterictic.Thus, one or more these features can be expressed or impliedly be comprised to the feature that is limited with " first ", " second ".In description of the present utility model, except as otherwise noted, the implication of " a plurality of " is two or more.
In description of the present utility model, it should be noted that, unless otherwise clearly defined and limited, term " installation ", " being connected ", " connection " should be interpreted broadly, and for example, can be to be fixedly connected with, and can be also to removably connect, or connect integratedly; Can be to be directly connected, also can indirectly be connected by intermediary, can be the connection of two element internals.For the ordinary skill in the art, can concrete condition understand the concrete meaning of above-mentioned term in the utility model.
Below with reference to Fig. 1 and Fig. 2, describe according to the burner for heating furnace of the utility model first aspect embodiment, this heating furnace (scheming not shown) comprises body of heater.
As shown in Figure 1, according to the burner for heating furnace of the utility model first aspect embodiment, comprise air regenerator 1 and regenerator gas chamber 2.
In air regenerator 1, be provided with the first heat storage 11, on air regenerator 1, be formed with air scoop to pass into combustion air and to discharge air off gas, on air regenerator 1, be formed with air port with by with the first heat storage 11 heat exchange after combustion air pass in body of heater.
With reference to Fig. 1, in the combustion period of burner, the first heat storage 11 is located in air regenerator 1, on air regenerator 1, be formed with air scoop and air port, combustion air can enter in air regenerator 1 by air scoop, and first heat storage 11 of flowing through, the heat of savings in the first heat storage 11 is taken away, enter in the body of heater of heating furnace by air port with the combustion air after the first heat storage 11 heat exchanges.
Within the accumulation of heat cycle of burner, the air off gas in body of heater can enter in air regenerator 1 by air port, and first heat storage 11 of flowing through is the first heat storage 11 heating, and the temperature of air off gas reduces, finally by being discharged by air scoop.
In regenerator gas chamber 2, be provided with the second heat storage 21, on regenerator gas chamber 2, be formed with gas port to pass into combustion gas and to discharge combustion gas waste gas, on regenerator gas chamber 2, be formed with combustion gas spout with by with the second heat storage 21 heat exchange after combustion gas pass in body of heater.
As shown in Figure 1, in the combustion period of burner, the second heat storage 21 is located in regenerator gas chamber 2, on regenerator gas chamber 2, be formed with gas port and combustion gas spout, combustion gas can enter in regenerator gas chamber 2 by gas port, and second heat storage 21 of flowing through, the heat of savings in the second heat storage 21 is taken away, by combustion gas spout, enter in the body of heater of heating furnace with the combustion gas after the second heat storage 21 heat exchanges, final combustion air and combustion gas rapid mixing in body of heater, realize two heat-accumulation combustions.Alternatively, combustion gas is coal gas, and preferably, combustion gas is low-heat value gas.
Within the accumulation of heat cycle of burner, the combustion gas waste gas in body of heater can enter in regenerator gas chamber 2 by combustion gas spout, and second heat storage 21 of flowing through is the second heat storage 21 heating, and the temperature of combustion gas waste gas reduces, finally by being discharged by gas port.
According to the burner for heating furnace of the utility model embodiment, combustion air and combustion gas etc. mixes in body of heater, then directly burns, and can reduce local high temperature, reduces the discharge of noxious pollutant, has extended the service life of burner.
In an embodiment of the present utility model, on the path being connected with gas port with air scoop, be respectively equipped with reversal valve 3.That is to say, as shown in Figure 1, the path being connected with the air scoop of air regenerator 1 is provided with reversal valve 3, this reversal valve 3 is for controlling the commutation of combustion air and air off gas, the path being connected with the gas port of regenerator gas chamber 2 is provided with reversal valve 3, and this reversal valve 3 is for controlling the commutation of combustion gas and combustion gas waste gas.
Alternatively, combustion air comprises the oxygen of air and predetermined ratio, and the upstream of the reversal valve 3 of the path being connected with air scoop is provided with gas mixer 4 so that air and oxygen mix is even.In the combustion period of burner, by gas mixer 4, in air, sneak into a certain proportion of oxygen, form uniform oxygen-enriched combustion-supporting air, this oxygen-enriched combustion-supporting air enters in air heat storage by reversal valve 3.Here, it should be noted that, " upstream " can be understood as the upstream of the mobile direction of combustion air.
In air, blending oxygen carries out outward at body of heater, thereby has guaranteed the uniformity of mixing, and makes the atmosphere in body of heater more be easy to control, and can reduce local atmosphere inhomogeneities, improves and smelts lumber recovery.
In an embodiment of the present utility model, between air regenerator 1 and air port, be respectively equipped with device for recovering powder 5 between regenerator gas chamber 2 and combustion gas spout.For example, in the example of Fig. 1 and Fig. 2, device for recovering powder 5 is two, one of them device for recovering powder 5 is established between air regenerator 1 and body of heater, another device for recovering powder 5 is located between regenerator gas chamber 2 and body of heater, the flue gas of high like this temperate zone dust can enter two device for recovering powder 5 by air port and combustion gas spout are proportional respectively, high temperature air smoke gas flow after dedusting heats air heat storage through air heat storage, air off gas temperature reduces, via reversal valve 3, discharge, high-temperature fuel gas smoke gas flow after dedusting heats regenerator gas body through regenerator gas body, combustion gas EGT reduces, via reversal valve 3, discharge.
Thus, by device for recovering powder 5 is set, can carry out separation recovery waste heat resource to the dust of high-temperature dust-containing flue gas, life-span that simultaneously can prolonging combustion device also reduces the discharge of dust.
Further, device for recovering powder 5 is provided with the dust collection tapping equipment 6 communicating with it.As shown in Figure 2, dust collection tapping equipment 6 is for collecting the dust of being separated by two high-temperature dust retracting devices 5, and the discontinuous sealed discharging of realization to dust.
Alternatively, respectively with the first heat storage 11 and the second heat storage 21 heat exchange after combustion air and the temperature of combustion gas all more than 1500 ℃, respectively with the first heat storage 11 and the second heat storage 21 heat exchange after the temperature of flue gas below 200 ℃.Adopt oxygen-enriched combustion technology, can realize 2200 ℃ of above fire box temperatures, exhaust gas temperature is lower than 200 ℃, and the overall efficiency of fuel can reach more than 90%, and comprehensive energy consumption significantly reduces, and efficiency of energy utilization is greatly improved.
As depicted in figs. 1 and 2, according to the heating furnace of the utility model second aspect embodiment, comprise body of heater and according to the burner for heating furnace of the above-mentioned first aspect embodiment of the utility model.
Body of heater has air spray orifice 201 and gas jet orifice 202, and air spray orifice 201 and gas jet orifice 202 communicate with air port and combustion gas spout respectively, and wherein burner communicates with body of heater.See figures.1.and.2, air spray orifice 201 and gas jet orifice 202 run through the sidewall of body of heater, and air spray orifice 201 is connected with air port, and gas jet orifice 202 is connected with gas jet orifice 202.
Further, as shown in Figure 1, between air spray orifice 201 and gas jet orifice 202 at an angle.It will be appreciated that, the angle between air spray orifice 201 and gas jet orifice 202 can be according to actual requirement setting, to better meet actual requirement.
Alternatively, the distance away between one end of heater of air spray orifice 201 and gas jet orifice 202 is less than the distance between one end of contiguous heater of air spray orifice 201 and gas jet orifice 202.For example, in the example of Fig. 1, distance between the left end of the left end of air spray orifice 201 and gas jet orifice 202 is greater than the distance between the right-hand member of air spray orifice 201 and the right-hand member of gas jet orifice 202, combustion gas coal gas and combustion air rapid mixing in body of heater at a certain angle for example, realizes two accumulation of heat oxygen-enriched combustings like this.
By designing combustion gas and combustion air, spray mixing angle, in body of heater, smoke backflow circulation of self-assembling formation, is conducive to realize the abundant burning of fuel, has improved the utilization rate of fuel.
Preferably, air regenerator 1 and regenerator gas chamber 2 are respectively two, and one of them air regenerator 1 and a regenerator gas chamber 2 be when combustion period, and another air regenerator 1 and a regenerator gas chamber 2 are in the accumulation of heat cycle.
In the combustion period of a burner, by gas mixer 4, in air, sneak into a certain proportion of oxygen, form uniform oxygen-enriched combustion-supporting air, combustion air, by reversal valve 3, enters air regenerator 1, first heat storage 11 of flowing through, the heat of savings in the first heat storage 11 is taken away, combustion air is preheated to more than 1500 ℃, the device for recovering powder 5 of flowing through, then sprayed by combustion air spout; Combustion gas for example coal gas, by reversal valve 3, enters regenerator gas chamber 2, and second heat storage 21 of flowing through is taken away the heat of savings in the second heat storage 21, and coal gas is preheated to more than 1500 ℃, the device for recovering powder 5 of flowing through, then sprayed by combustion gas spout; Final coal gas and combustion air be rapid mixing in stove at a certain angle, realizes two accumulation of heat oxygen-enriched combustings.
Simultaneously, another burner of burner pairing is in the accumulation of heat cycle therewith, the flue gas of high temperate zone dust is by air port and combustion gas spout, proportionally enter respectively corresponding device for recovering powder 5, high temperature air smoke gas flow after dedusting heats the first heat storage 11 through the first heat storage 11, air off gas temperature is down to below 200 ℃, via reversal valve 3, discharges; Coal gas of high temperature smoke gas flow after dedusting is through the second heat storage 21 by the second heat storage 21 heating, and coal gas EGT is down to below 200 ℃, via reversal valve 3, discharges.
The course of work of two burners exchange in next cycle, and reciprocation cycle, every a pair of burner is commutation so periodically, alternatively, the duration in each combustion period and accumulation of heat cycle is 20s～300s, and in other words, be 20～300s the commutating period of burner.Dust collection tapping equipment 6 can discontinuity collection and the high-temperature dust separated from flue gas of discharge.Adjusting by oxygen-doped amount and air distribution amount, can realize Atmosphere Control.
Alternatively, body of heater is made by refractory material.For example body of heater can adopt the refractory material of superhigh temperature to make, and heatproof can arrive more than 2200 ℃.
In the description of this description, the description of reference term " embodiment ", " some embodiment ", " illustrative examples ", " example ", " concrete example " or " some examples " etc. means to be contained at least one embodiment of the present utility model or example in conjunction with specific features, structure, material or the feature of this embodiment or example description.In this manual, the schematic statement of above-mentioned term is not necessarily referred to identical embodiment or example.And the specific features of description, structure, material or feature can be with suitable mode combinations in any one or more embodiment or example.
Although illustrated and described embodiment of the present utility model, those having ordinary skill in the art will appreciate that: in the situation that not departing from principle of the present utility model and aim, can carry out multiple variation, modification, replacement and modification to these embodiment, scope of the present utility model is limited by claim and equivalent thereof.
Claims (12)
1. for a burner for heating furnace, described heating furnace comprises body of heater, it is characterized in that, the described burner for heating furnace comprises:
Air regenerator, in described air regenerator, be provided with the first heat storage, on described air regenerator, be formed with air scoop to pass into combustion air and to discharge air off gas, on described air regenerator, be formed with air port with by with described the first heat storage heat exchange after combustion air pass in described body of heater; With
Regenerator gas chamber, indoor second heat storage that is provided with of described regenerator gas, on described regenerator gas chamber, be formed with gas port to pass into combustion gas and to discharge combustion gas waste gas, on described regenerator gas chamber, be formed with combustion gas spout with by with described the second heat storage heat exchange after combustion gas pass in described body of heater.
2. the burner for heating furnace according to claim 1, is characterized in that, on the path being connected, is respectively equipped with reversal valve with described air scoop with described gas port.
3. the burner for heating furnace according to claim 2, is characterized in that, described combustion air comprises the oxygen of air and predetermined ratio,
The upstream of the described reversal valve of the path being connected with described air scoop is provided with gas mixer so that described air and described oxygen mix is even.
4. the burner for heating furnace according to claim 1, is characterized in that, between described air regenerator and described air port, be respectively equipped with device for recovering powder between described regenerator gas chamber and described combustion gas spout.
5. the burner for heating furnace according to claim 4, is characterized in that, described device for recovering powder is provided with the dust collection tapping equipment communicating with it.
6. according to the burner for heating furnace described in any one in claim 1-5, it is characterized in that, respectively with described the first heat storage and described the second heat storage heat exchange after combustion air and the temperature of combustion gas all more than 1500 ℃, respectively with described the first heat storage and described the second heat storage heat exchange after the temperature of flue gas below 200 ℃.
7. a heating furnace, is characterized in that, comprising:
Body of heater, described body of heater has air spray orifice and gas jet orifice, and described air spray orifice and described gas jet orifice communicate with described air port and described combustion gas spout respectively; With
According to the burner for heating furnace described in any one in claim 1-6, wherein said burner communicates with described body of heater.
8. heating furnace according to claim 7, is characterized in that, between described air spray orifice and described gas jet orifice at an angle.
9. heating furnace according to claim 8, it is characterized in that, the distance away between one end of described heater of described air spray orifice and described gas jet orifice is less than the distance between one end of the described heater of vicinity of described air spray orifice and described gas jet orifice.
10. according to the heating furnace described in any one in claim 7-9, it is characterized in that, described air regenerator and described regenerator gas chamber are respectively two, and described in one of them, air regenerator and a described regenerator gas chamber are when combustion period, and described in another, air regenerator and a described regenerator gas chamber are in the accumulation of heat cycle.
11. heating furnaces according to claim 10, is characterized in that, described in each, combustion period and the duration in described accumulation of heat cycle are 20s～300s.
12. heating furnaces according to claim 7, is characterized in that, described body of heater is made by refractory material.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320623739.9U CN203549799U (en) | 2013-10-10 | 2013-10-10 | Combustion device for heating oven and heating oven with same |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320623739.9U CN203549799U (en) | 2013-10-10 | 2013-10-10 | Combustion device for heating oven and heating oven with same |
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| Publication Number | Publication Date |
|---|---|
| CN203549799U true CN203549799U (en) | 2014-04-16 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201320623739.9U Expired - Fee Related CN203549799U (en) | 2013-10-10 | 2013-10-10 | Combustion device for heating oven and heating oven with same |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103672870A (en) * | 2013-10-10 | 2014-03-26 | 北京神雾环境能源科技集团股份有限公司 | Combustion device for heating furnace and heating furnace with combustion device |
-
2013
- 2013-10-10 CN CN201320623739.9U patent/CN203549799U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103672870A (en) * | 2013-10-10 | 2014-03-26 | 北京神雾环境能源科技集团股份有限公司 | Combustion device for heating furnace and heating furnace with combustion device |
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| C14 | Grant of patent or utility model | ||
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Address after: 102200 Beijing city Changping District Machi Town cow Road No. 18 Patentee after: Shenwu Technology Group Co.,Ltd. Address before: 102200 Beijing city Changping District Machi Town cow Road No. 18 Patentee before: BEIJING SHENWU ENVIRONMENT AND ENERGY TECHNOLOGY Co.,Ltd. |
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| CP01 | Change in the name or title of a patent holder | ||
| PE01 | Entry into force of the registration of the contract for pledge of patent right |
Denomination of utility model: Combustion device for heating furnace and heating furnace with combustion device Effective date of registration: 20180322 Granted publication date: 20140416 Pledgee: The Bank of Beijing Limited by Share Ltd. Anwar Road Branch Pledgor: Shenwu Technology Group Co.,Ltd. Registration number: 2018990000210 |
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Granted publication date: 20140416 |
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| CF01 | Termination of patent right due to non-payment of annual fee |