CN209263054U - A kind of fused salt regenerative catalytic combustion device - Google Patents
A kind of fused salt regenerative catalytic combustion device Download PDFInfo
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- CN209263054U CN209263054U CN201920429303.3U CN201920429303U CN209263054U CN 209263054 U CN209263054 U CN 209263054U CN 201920429303 U CN201920429303 U CN 201920429303U CN 209263054 U CN209263054 U CN 209263054U
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- 150000003839 salts Chemical class 0.000 title claims abstract description 72
- 238000007084 catalytic combustion reaction Methods 0.000 title claims abstract description 44
- 230000001172 regenerating effect Effects 0.000 title claims abstract description 41
- 239000007789 gas Substances 0.000 claims abstract description 67
- 239000003054 catalyst Substances 0.000 claims abstract description 45
- 238000005338 heat storage Methods 0.000 claims abstract description 36
- 239000002912 waste gas Substances 0.000 claims abstract description 17
- 238000009825 accumulation Methods 0.000 claims description 29
- 239000000945 filler Substances 0.000 claims description 8
- 239000007788 liquid Substances 0.000 claims description 5
- 230000008859 change Effects 0.000 claims description 4
- 238000009826 distribution Methods 0.000 claims description 3
- 239000011044 quartzite Substances 0.000 claims description 3
- 239000004576 sand Substances 0.000 claims description 3
- 239000007787 solid Substances 0.000 claims description 3
- 238000003860 storage Methods 0.000 claims description 2
- 230000003197 catalytic effect Effects 0.000 abstract description 16
- 238000002485 combustion reaction Methods 0.000 abstract description 9
- 238000005516 engineering process Methods 0.000 abstract description 4
- 238000006555 catalytic reaction Methods 0.000 description 21
- 238000000034 method Methods 0.000 description 11
- 239000012855 volatile organic compound Substances 0.000 description 9
- FGIUAXJPYTZDNR-UHFFFAOYSA-N potassium nitrate Inorganic materials [K+].[O-][N+]([O-])=O FGIUAXJPYTZDNR-UHFFFAOYSA-N 0.000 description 8
- VWDWKYIASSYTQR-UHFFFAOYSA-N sodium nitrate Inorganic materials [Na+].[O-][N+]([O-])=O VWDWKYIASSYTQR-UHFFFAOYSA-N 0.000 description 8
- 238000006243 chemical reaction Methods 0.000 description 7
- 239000000463 material Substances 0.000 description 7
- 230000003647 oxidation Effects 0.000 description 7
- 238000007254 oxidation reaction Methods 0.000 description 7
- UGFAIRIUMAVXCW-UHFFFAOYSA-N Carbon monoxide Chemical compound [O+]#[C-] UGFAIRIUMAVXCW-UHFFFAOYSA-N 0.000 description 6
- 239000003546 flue gas Substances 0.000 description 6
- LPXPTNMVRIOKMN-UHFFFAOYSA-M sodium nitrite Substances [Na+].[O-]N=O LPXPTNMVRIOKMN-UHFFFAOYSA-M 0.000 description 6
- CURLTUGMZLYLDI-UHFFFAOYSA-N Carbon dioxide Chemical compound O=C=O CURLTUGMZLYLDI-UHFFFAOYSA-N 0.000 description 5
- 238000002844 melting Methods 0.000 description 5
- 230000008018 melting Effects 0.000 description 5
- 238000000746 purification Methods 0.000 description 5
- 238000011084 recovery Methods 0.000 description 5
- FAPWRFPIFSIZLT-UHFFFAOYSA-M Sodium chloride Chemical compound [Na+].[Cl-] FAPWRFPIFSIZLT-UHFFFAOYSA-M 0.000 description 4
- 229910002092 carbon dioxide Inorganic materials 0.000 description 4
- 239000000919 ceramic Substances 0.000 description 4
- 238000004519 manufacturing process Methods 0.000 description 4
- 239000000203 mixture Substances 0.000 description 4
- 238000013021 overheating Methods 0.000 description 4
- 230000008569 process Effects 0.000 description 4
- 239000003463 adsorbent Substances 0.000 description 3
- 238000004064 recycling Methods 0.000 description 3
- 230000035939 shock Effects 0.000 description 3
- 239000002918 waste heat Substances 0.000 description 3
- 208000037656 Respiratory Sounds Diseases 0.000 description 2
- 239000001569 carbon dioxide Substances 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 238000010438 heat treatment Methods 0.000 description 2
- 230000001590 oxidative effect Effects 0.000 description 2
- 230000009466 transformation Effects 0.000 description 2
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 description 1
- 229910000975 Carbon steel Inorganic materials 0.000 description 1
- 229910002651 NO3 Inorganic materials 0.000 description 1
- NHNBFGGVMKEFGY-UHFFFAOYSA-N Nitrate Chemical compound [O-][N+]([O-])=O NHNBFGGVMKEFGY-UHFFFAOYSA-N 0.000 description 1
- 238000010521 absorption reaction Methods 0.000 description 1
- 229910052799 carbon Inorganic materials 0.000 description 1
- 239000010962 carbon steel Substances 0.000 description 1
- 229910010293 ceramic material Inorganic materials 0.000 description 1
- 239000003795 chemical substances by application Substances 0.000 description 1
- 238000009841 combustion method Methods 0.000 description 1
- 150000001875 compounds Chemical class 0.000 description 1
- 238000001816 cooling Methods 0.000 description 1
- 230000006378 damage Effects 0.000 description 1
- 238000003795 desorption Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000004134 energy conservation Methods 0.000 description 1
- 238000005265 energy consumption Methods 0.000 description 1
- 238000010304 firing Methods 0.000 description 1
- 239000012530 fluid Substances 0.000 description 1
- 239000000446 fuel Substances 0.000 description 1
- 239000002075 main ingredient Substances 0.000 description 1
- 239000000155 melt Substances 0.000 description 1
- 238000002156 mixing Methods 0.000 description 1
- 229910000510 noble metal Inorganic materials 0.000 description 1
- 231100000252 nontoxic Toxicity 0.000 description 1
- 230000003000 nontoxic effect Effects 0.000 description 1
- 239000010815 organic waste Substances 0.000 description 1
- 239000010935 stainless steel Substances 0.000 description 1
- 229910001220 stainless steel Inorganic materials 0.000 description 1
- 239000011232 storage material Substances 0.000 description 1
- 230000008646 thermal stress Effects 0.000 description 1
- 231100000331 toxic Toxicity 0.000 description 1
- 230000002588 toxic effect Effects 0.000 description 1
- 229910052723 transition metal Inorganic materials 0.000 description 1
- 150000003624 transition metals Chemical class 0.000 description 1
- 239000002699 waste material Substances 0.000 description 1
Landscapes
- Incineration Of Waste (AREA)
- Exhaust Gas Treatment By Means Of Catalyst (AREA)
Abstract
The utility model discloses a kind of fused salt regenerative catalytic combustion devices, belong to environment protection catalytic field of combustion technology, the reacting tank body being connected to including waste gas delivery pipeline system at least two top catalyst chambers, reacting tank body is interior, catalyst chamber is arranged with regenerative heat exchange part, the regenerative heat exchange part includes catalyst and fused salt heat storage, and catalyst and fused salt heat storage are separated by multihole distributor, the catalyst is close to catalyst chamber one end；The reacting tank body bottom passes through three-way control valve and is connected into the waste gas delivery pipeline system；The waste gas delivery pipeline system includes admission line and exhaust pipe, exhaust gas is sent into reacting tank body by the inlet end of each reacting tank body bottom three-way control valve by the admission line, and the three-way control valve outlet side of other reacting tank bodies and final reacted tank base of the gas after burning in reacting tank body by its connection is discharged into the exhaust pipe.
Description
Technical field
The utility model belongs to environment protection catalytic field of combustion technology, and in particular to a kind of fused salt heat accumulating type catalytic combustion dress
It sets.
Background technique
Heat accumulating type catalytic oxidation combustion furnace (Regenerative Catalytic Oxidation), abbreviation RCO, the method with
The new technology that RTO is identical and grows up in nearly more than 10 year, purifying rate is high, and adaptable, energy consumption is low in combustion method, nothing
Secondary pollution, the occasion high applied to exhaust gas concentration are relatively more.RCO is a kind of new catalysis technique, and there is RTO efficiently to return for it
The advantages of low-temperature working of the characteristics of receiving energy and catalysis reaction, catalyst is placed in the top of heat-storing material, reach purification
To excellent, heat recovery rate is up to 95%.RCO system performance it is excellent be critical that with it is dedicated, be immersed in saddle or honeycomb
Noble metal or transition-metal catalyst on ceramics, oxidation occur not only to reduce fuel consumption, but also drop in 250-500 DEG C of low temperature
Low equipment manufacturing cost.Now, some countries have begun the purified treatment for replacing CO to carry out organic exhaust gas using RCO technology, very
More RTO equipment, which also have begun, is transformed into RCO, can cut down operating cost in this way up to 33%-50%.After reacted, toxic has
Machine compound is converted into nontoxic CO2And H2O, so that pollution be made to be governed.
Heat accumulating type catalytic oxidation (RCO) may be directly applied to middle and high concentration (1000mg/m3- 10000mg/m3) it is organic
Waste gas purification, working principle are the rotary valves that organic exhaust gas enters equipment by air-introduced machine, then by rotary valve by inlet gas and
Exit gas is completely separable.The deposit of heat occurs after passing through ceramic material filled layer (bottom) preheating first for gas and heat is handed over
It changes, temperature nearly reaches Catalytic Layer and carries out temperature set by catalysis oxidation, and it is anti-to enter back into Catalytic Layer completion catalysis oxidation
It answers, i.e. reaction generates CO2And H2O, and a large amount of heat is discharged, to reach expected treatment effect.Gas after catalysis oxidation
It into other ceramic filler layers, is discharged into atmosphere after recycling thermal energy by rotary valve, purification final vacuum temperature is only slightly higher than
Temperature before exhaust-gas treatment.System continuously runs, automatically switches.It is worked by rotary valve, all ceramic filler layers are completed
Heating, cooling, purification circulation step, heat are recycled.
Ceramic heat storage body is in use, alternately through high-temperature flue gas and cold air, for certain point in heat storage tank,
Its temperature periodically will quickly raise and reduce 100-200 DEG C, and this thermal shock has certain destruction to make heat storage material
With.There is the larger temperature difference in heat storage tank everywhere, for monolithic heat storage, the temperature difference at each position can form heat in material internal and answer
Power.It, will be after coming into operation soon, since these thermal shocks and thermal stress face generate if the thermal shock resistance of material is not good enough
Crackle, in addition it is broken.In general, crackle does not cause to significantly affect to using, but if badly broken, then can block circulation
Road or be blown out after regenerative chamber in regenerative chamber formed cavity, prevent regenerative chamber from normally playing a role.Hot body in gap and
The centralized procedure in gap will finally make high-temperature flue gas be directly entered discharge flue, cause exhaust gas temperature excessively high.
In the prior art, such as Publication No. CN105240864A, the time of disclosure is on January 13rd, 2016, entitled " a kind of
The Chinese invention patent document of catalytic combustion system and catalytic combustion method " discloses a kind of catalytic combustion system and catalysis combustion
Firing method, catalytic combustion system, including waste gas inlet, chimney, catalytic combustion system and adsorbent equipment；Waste gas inlet passes through
The connection of one pipe-and-filter, is then connected to by a pipeline with the enterprising port of adsorbent bed, and absorption blower is by a pipeline and inhales
The lower gas outlet of attached bed is connected to；The upper gas outlet of adsorbent bed is connected by the heat exchanger of a pipeline and catalytic combustion system；Heat
Exchanger is connected to by a pipeline with the gas outlet for being catalyzed combustion air fan, is catalyzed the air inlet of combustion air fan by a pipeline and is given up
The connection of gas air inlet；Heat exchanger is connected to by a pipeline with chimney.Catalytic combustion method of the invention will filter, active carbon is inhaled
Attached, thermal current desorption and catalysis burning are combined together, and are formed effective waste gas treatment process, are greatly improved exhaust-gas treatment
Efficiency, and extra power needed for effectively save exhaust-gas treatment prevent secondary emission pollution.But it is stored in this technical solution
It is general in the design of hot type catalytic combustion process only to consider accumulation of heat and catalyticing combustion process, heat transfer process only in heat storage into
Row, or portion exchanges heat in the device, but in this process, there is heat in a large amount of thermal energy that high concentration VOCs catalysis burning is released
The discharge of amount wastes.
Summary of the invention
The utility model in view of the above shortcomings of the prior art, provide a kind of amount of stored heat is big, temperature uniformly, heat recovery
Rate is high, and the fused salt heat accumulating type for the characteristic that gas temperature is uniform, is less prone to local overheating adapts to organic exhaust gas after exchanging heat is catalyzed
Burner.
The purpose of this utility model is achieved through the following technical solutions:
A kind of fused salt regenerative catalytic combustion device, it is characterised in that: pushed up including waste gas delivery pipeline system and at least two
The reacting tank body of portion's catalyst chamber connection, reacting tank body is interior, catalyst chamber is arranged with regenerative heat exchange part, the regenerative heat exchange part
Including catalyst and fused salt heat storage, and catalyst and fused salt heat storage are separated by multihole distributor, and the catalyst is close to urge
Change room one end；The reacting tank body bottom passes through three-way control valve and is connected into the waste gas delivery pipeline system；The exhaust gas conveying
Guard system includes admission line and exhaust pipe, the air inlet that the admission line passes through each reacting tank body bottom three-way control valve
Exhaust gas is sent into reacting tank body by end, and the gas after burning in reacting tank body is by exhaust outlet or other reacting tank bodies of its connection
And the three-way control valve outlet side of final reacted tank base is discharged into the exhaust pipe.
The fused salt heat storage includes the accumulation of heat component being arranged between disengaging gas distribution grid, is arranged in the accumulation of heat component
There is the fused salt as heat accumulating.
The structure of fused salt of the accumulation of heat component as heat accumulating, a portion is tube bank type structure, as high temperature
Phase-transition heat-storage section；Some structure is honeycomb structure, as medium temperature sensible heat heat accumulating sections；Heat storage high-temperature phase change heat accumulation
Segment structure is tube bank type, plays the role of absorbing high temperature section heat and gas is equally distributed；Medium temperature sensible heat heat accumulating sections are honeycomb
Structure, fused salt heat accumulating are distributed in the more empty media of heat storage honeycomb.
The sensible heat of sensible heat by liquid molten salt and solid porous medium is additionally provided in the fused salt heat storage to store
The porous media filler of heat；The phase transformation after high-temperature flue gas is exchanged heat is melted, flue gas heat of absorbing heat forms liquid, and changing
It flows in hot device and thermally conductive, so that the temperature field in region is not in excessively high, while having mesolimnion on accumulation of heat body section, is formed
There is temperature gradient, so that more than heat storage mesolimnion melting saline solution keeps high temperature, melting saline solution below mesolimnion keeps low temperature.
The NaNO that the fused salt is 60%3With 40% KNO3Mixture, or be 53% KNO3With 7% NaNO3And
40% NaNO2Mixture.
The porous media filler is one of quartzite and siliceous sand or mixes, with fused salt (60%NaNO3KNO
+ 40%3), (53%KNO3+ 7%NaNO3+ 40%NaNO2) etc. all have good compatibility and long-time stability.
The blower for pressurizeing for gas in pipelines is provided on the admission line.
The three-way control valve of the reacting tank body bottom, asynchronous adjusting between two neighboring three-way control valve.
Several heaters are provided in the catalyst chamber.
A kind of fused salt regenerative catalytic combustion device of the technical program, the High Temperature Gas after solving accumulation of heat-catalysis burning
The waste heat of body recycles problem, is recycled to heat, compact-sized.It is equipped in the regenerative chamber of regenerative catalytic combustion device
Catalytic bed and fused salt accumulation of heat bed after gas carries out exothermic catalytic reaction in catalytic bed, by heat transfer and store extremely
In fused salt accumulation of heat bed, subsequent gases are preheated, to make full use of heat, leave the material of regenerative chamber by heat exchange
Device, preheated-combustion-supporting gas, further to utilize heat；Fused salt regenerative catalytic combustion device amount of stored heat is big, and temperature is uniform, heat
The rate of recovery is high；Gas temperature is uniform after heat exchange, is less prone to local overheating；Equipment manufacturing cost is low, adapts to the characteristic of organic exhaust gas.
Fused salt is used to have many advantages as heat transfer and thermal storage fluid medium, the more a height of 1700 ~ 1900g/m3 of fused salt density；It is molten
Salt acceptable thermal coefficient is 0.50 ~ 0.56W/(m DEG C)；Fused salt acceptable specific heat is 1.50 ~ 1.55kJ/
(kg DEG C)；Fused salt has lower viscosity, 0.0010 ~ 0.0036kgm/s；Fused salt is in 350 DEG C or less the corrosivity to carbon steel
It is very low, it is very low to the corrosivity of stainless steel at 600 DEG C or less；In its main ingredient, binary nitrate operating temperature is 500 ~ 565
DEG C, binary carbonic acid fused salt operating temperature is even as high as 850 DEG C.
Detailed description of the invention
The utility model aforementioned and being detailed description below becomes more apparent upon when reading in conjunction with the following drawings, wherein
Fig. 1 is a kind of attachment structure schematic diagram of preferred embodiment of the utility model；
In figure:
1, reacting tank body；2, catalyst chamber；3, catalyst；4, fused salt heat storage；5, multihole distributor；6, three-way control valve；
7, admission line；8, exhaust pipe；9, blower；10, heater.
Specific embodiment
It is further illustrated below by several specific embodiments and realizes the object of the invention technical solution, need to illustrate
It is that claimed technical solution includes but is not limited to following embodiment.
Embodiment 1
As a kind of most basic embodiment of the invention, such as Fig. 1 discloses a kind of fused salt heat accumulating type catalytic combustion dress
It sets, including the reacting tank body that waste gas delivery pipeline system is connected to at least two top catalyst chambers, reacting tank body is interior, catalyst chamber is divided into
It is equipped with regenerative heat exchange part, the regenerative heat exchange part includes catalyst and fused salt heat storage, and catalyst and fused salt heat storage
Separated by multihole distributor, the catalyst is close to catalyst chamber one end；The reacting tank body bottom is connected by three-way control valve
Enter the waste gas delivery pipeline system；The waste gas delivery pipeline system includes admission line and exhaust pipe, and the admission line is logical
Exhaust gas is sent into reacting tank body by the inlet end for crossing each reacting tank body bottom three-way control valve, the gas after burning in reacting tank body
It is discharged by the three-way control valve outlet side of exhaust outlet or other reacting tank bodies of its connection and final reacted tank base
The exhaust pipe；The VOCs exhaust gas of input is preheated by the fused salt heat storage of a reacting tank body, then in the reactor tank
Body catalyst effect under, top catalyst chamber with lower temperature oxidizing fire purification, and pass through another reaction chamber
It is discharged and is transferred heat to fused salt heat storage this mode in the reaction chamber, the purified treatment of organic exhaust gas is realized, reaches
The function of energy-saving and emission-reduction.The course of work is as follows: opening the three-way control valve entrance of regenerative catalytic combustion device and is exported pass
It closes, open the diverter valve outlet of another or the several reacting tank bodies in heat-storage catalytic part and closes its entrance, pass through
The blower of opening conveys certain density VOCs exhaust gas into heat accumulating type catalytic combustion bed, which is storing
It is anti-to carry out catalysis burning subsequently into catalyst for heat accumulating heat exchange after being heated fused salt accumulation of heat in hot type catalysis burning bed
It answers, forms high temperature carbon dioxide and vapor, be then that room enters catalyst chamber by catalysis, flow through the fused salt heat accumulation of reacting tank body
Heat accumulating is heated when material, is then flowed out from the outlet of reacting tank body, is discharged into exhaust gas transport portion, when by one section
Between after, close heat accumulating type catalytic combustion bed entrance and heat accumulating type catalytic combustion bed outlet, open heat accumulating type catalytic combustion bed
Entrance and heat accumulating type catalytic combustion bed outlet, certain density VOCs exhaust gas is inputted into heat accumulating type catalytic combustion bed, weight
Catalysis burning of the VOCs exhaust gas described in multiple the preceding paragraph in catalysis burning bed, heat exchanging part and heat accumulating type burning bed is anti-
It should be reacted with heat exchange.
The technical solution of the utility model solves the problems, such as the waste heat recycling of the high-temperature gas after accumulation of heat-catalysis burning, right
Heat is recycled, compact-sized.Catalytic bed and fused salt accumulation of heat are equipped in the regenerative chamber of regenerative catalytic combustion device
Bed after gas carries out exothermic catalytic reaction in catalytic bed, by heat transfer and is stored into fused salt accumulation of heat bed, to rear
Continuous gas is preheated, and to make full use of heat, leaves the material of regenerative chamber through over-heat-exchanger, preheated-combustion-supporting gas, with into
One step utilizes heat；Fused salt regenerative catalytic combustion device amount of stored heat is big, and temperature is uniform, and heat recovery rate is high；Gas after heat exchange
Temperature is uniform, is less prone to local overheating；Equipment manufacturing cost is low, adapts to the characteristic of organic exhaust gas.
Embodiment 2
It is preferably carried out scheme, such as Fig. 1 as one kind of the present invention, discloses a kind of fused salt regenerative catalytic combustion device,
Including the reacting tank body that waste gas delivery pipeline system is connected to at least two top catalyst chambers, several add is provided in the catalyst chamber
Hot device；
Reacting tank body is interior, catalyst chamber is arranged with regenerative heat exchange part, and the regenerative heat exchange part includes catalyst and melts
Salt heat storage, and catalyst and fused salt heat storage are separated by multihole distributor, the catalyst is close to catalyst chamber one end；It is described molten
Salt heat storage includes the accumulation of heat component being arranged between disengaging gas distribution grid, is provided in the accumulation of heat component as heat accumulating
Fused salt；The structure of fused salt of the accumulation of heat component as heat accumulating, a portion is tube bank type structure, as high-temperature-phase
Become heat accumulating sections；Some structure is honeycomb structure, as medium temperature sensible heat heat accumulating sections；Heat storage high-temperature phase change heat accumulation section
Structure is tube bank type, plays the role of absorbing high temperature section heat and gas is equally distributed；Medium temperature sensible heat heat accumulating sections are honeycomb knot
Structure, fused salt heat accumulating are distributed in the more empty media of heat storage honeycomb；It is additionally provided in the fused salt heat storage by liquid
The sensible heat of fuse salt and the sensible heat of solid porous medium carry out the porous media filler of accumulation of heat；Melting exchanges heat by high-temperature flue gas
Phase transformation afterwards, absorb heat flue gas heat, formed liquid, and in heat exchanger flowing and it is thermally conductive so that the temperature field in region will not go out
It is existing excessively high, while having mesolimnion on accumulation of heat body section, it is formed with temperature gradient, is protected so that more than heat storage mesolimnion melting saline solution
High temperature is held, melting saline solution below mesolimnion keeps low temperature；The NaNO that the fused salt is 60%3With 40% KNO3Mixture, Huo Zhewei
53% KNO3With 7% NaNO3And 40% NaNO2Mixture；The porous media filler is in quartzite and siliceous sand
A kind of or mixing, with fused salt (60%NaNO3KNO+40%3), (53%KNO3+ 7%NaNO3+ 40%NaNO2) etc. all have it is good
Good compatibility and long-time stability.
The reacting tank body bottom passes through three-way control valve and is connected into the waste gas delivery pipeline system, the reacting tank body bottom
The three-way control valve in portion, asynchronous adjusting between two neighboring three-way control valve；The waste gas delivery pipeline system includes admission line
And exhaust pipe, the blower for pressurizeing for gas in pipelines is provided on the admission line, the admission line passes through every
Exhaust gas is sent into reacting tank body by the inlet end of a reacting tank body bottom three-way control valve, and the gas after burning in reacting tank body passes through
The three-way control valve outlet side of exhaust outlet or other reacting tank bodies of its connection and final reacted tank base is discharged into described
Exhaust pipe；
The VOCs exhaust gas of input is preheated by the fused salt heat storage of a reacting tank body, then urging in the reacting tank body
Catalyst chamber under agent catalytic action, at top is purified with lower temperature oxidizing fire, and simultaneously by the discharge of another reaction chamber
Fused salt heat storage this mode in the reaction chamber is transferred heat to, the purified treatment of organic exhaust gas is realized, reaches energy conservation and subtract
The function of row.The course of work is as follows: opening the three-way control valve entrance of regenerative catalytic combustion device and is exported closing, opens
The diverter valve outlet of another or several reacting tank bodies in heat-storage catalytic part simultaneously closes its entrance, passes through open wind
Machine conveys certain density VOCs exhaust gas into heat accumulating type catalytic combustion bed, which is catalyzed in heat accumulating type
Heat accumulating heat exchange after being heated fused salt accumulation of heat in burning bed, carries out catalyst combustion reaction subsequently into catalyst, is formed high
Then warm carbon dioxide and vapor are that room enters catalyst chamber by catalysis, will when flowing through the fused salt heat accumulating of reacting tank body
Heat accumulating heating, then flows out from the outlet of reacting tank body, is discharged into exhaust gas transport portion, after a period of time, closes
Close the outlet of the entrance and heat accumulating type catalytic combustion bed of heat accumulating type catalytic combustion bed, open heat accumulating type catalytic combustion bed entrance and
The outlet of heat accumulating type catalytic combustion bed inputs certain density VOCs exhaust gas into heat accumulating type catalytic combustion bed, repeats the preceding paragraph
Described in catalyst combustion reaction and heat exchange of the VOCs exhaust gas in catalysis burning bed, heat exchanging part and heat accumulating type burning bed
Reaction.
The technical solution of the utility model solves the problems, such as the waste heat recycling of the high-temperature gas after accumulation of heat-catalysis burning, right
Heat is recycled, compact-sized.Catalytic bed and fused salt accumulation of heat are equipped in the regenerative chamber of regenerative catalytic combustion device
Bed after gas carries out exothermic catalytic reaction in catalytic bed, by heat transfer and is stored into fused salt accumulation of heat bed, to rear
Continuous gas is preheated, and to make full use of heat, leaves the material of regenerative chamber through over-heat-exchanger, preheated-combustion-supporting gas, with into
One step utilizes heat；Fused salt regenerative catalytic combustion device amount of stored heat is big, and temperature is uniform, and heat recovery rate is high；Gas after heat exchange
Temperature is uniform, is less prone to local overheating；Equipment manufacturing cost is low, adapts to the characteristic of organic exhaust gas.
Claims (8)
1. a kind of fused salt regenerative catalytic combustion device, it is characterised in that: including waste gas delivery pipeline system and at least two tops
The reacting tank body (1) of catalyst chamber (2) connection, reacting tank body (1) is interior, catalyst chamber (2) is arranged with regenerative heat exchange part, the storage
Hot heat exchanging part includes catalyst (3) and fused salt heat storage (4), and catalyst (3) and fused salt heat storage (4) are by multihole distributor
(5) separate, the catalyst (3) is close to catalyst chamber (2) one end；Reacting tank body (1) bottom passes through three-way control valve (6)
It is connected into the waste gas delivery pipeline system；The waste gas delivery pipeline system includes admission line (7) and exhaust pipe (8), it is described into
Exhaust gas is sent into reacting tank body (1) by the inlet end of each reacting tank body (1) bottom three-way control valve (6) by feed channel (7), instead
Answer the gas in tank body (1) after burning by exhaust outlet or other reacting tank bodies (1) of its connection and final reacted tank body
(1) three-way control valve (6) outlet side of bottom is discharged into the exhaust pipe (8).
2. a kind of fused salt regenerative catalytic combustion device as described in claim 1, it is characterised in that: the fused salt heat storage
(4) include the accumulation of heat component being arranged between disengaging gas distribution grid, be provided in the accumulation of heat component as the molten of heat accumulating
Salt.
3. a kind of fused salt regenerative catalytic combustion device as claimed in claim 2, it is characterised in that: the accumulation of heat component,
The structure of middle a part is tube bank type structure, as high-temperature phase change heat accumulation section；Some structure is honeycomb structure, is made
For medium temperature sensible heat heat accumulating sections.
4. a kind of fused salt regenerative catalytic combustion device as claimed in claim 2, it is characterised in that: the fused salt heat storage
(4) the porous media filler for carrying out accumulation of heat by the sensible heat of liquid molten salt and the sensible heat of solid porous medium is additionally provided in.
5. a kind of fused salt regenerative catalytic combustion device as claimed in claim 4, it is characterised in that: the porous media filler
For one of quartzite and siliceous sand.
6. a kind of fused salt regenerative catalytic combustion device as described in claim 1, it is characterised in that: the admission line (7)
On be provided with blower (9) for pressurizeing for gas in pipelines.
7. a kind of fused salt regenerative catalytic combustion device as described in claim 1, it is characterised in that: the reacting tank body (1)
The three-way control valve (6) of bottom, asynchronous adjusting between two neighboring three-way control valve (6).
8. a kind of fused salt regenerative catalytic combustion device as described in claim 1, it is characterised in that: in the catalyst chamber (2)
It is provided with several heaters (10).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920429303.3U CN209263054U (en) | 2019-04-01 | 2019-04-01 | A kind of fused salt regenerative catalytic combustion device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920429303.3U CN209263054U (en) | 2019-04-01 | 2019-04-01 | A kind of fused salt regenerative catalytic combustion device |
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| Publication Number | Publication Date |
|---|---|
| CN209263054U true CN209263054U (en) | 2019-08-16 |
Family
ID=67585724
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| CN201920429303.3U Active CN209263054U (en) | 2019-04-01 | 2019-04-01 | A kind of fused salt regenerative catalytic combustion device |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111928239A (en) * | 2020-08-11 | 2020-11-13 | 重庆大学 | Combustion device combining phase-change molten salt and porous medium |
| CN113932236A (en) * | 2021-09-13 | 2022-01-14 | 深圳市天得一环境科技有限公司 | RCO waste gas treatment device and treatment method thereof |
| CN115854367A (en) * | 2023-02-15 | 2023-03-28 | 山西鑫瑞华机电设备有限公司 | Sled dress formula VOC exhaust-gas treatment equipment |
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2019
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111928239A (en) * | 2020-08-11 | 2020-11-13 | 重庆大学 | Combustion device combining phase-change molten salt and porous medium |
| CN113932236A (en) * | 2021-09-13 | 2022-01-14 | 深圳市天得一环境科技有限公司 | RCO waste gas treatment device and treatment method thereof |
| CN113932236B (en) * | 2021-09-13 | 2023-10-13 | 深圳市天得一环境科技有限公司 | RCO waste gas treatment device and treatment method thereof |
| CN115854367A (en) * | 2023-02-15 | 2023-03-28 | 山西鑫瑞华机电设备有限公司 | Sled dress formula VOC exhaust-gas treatment equipment |
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