CN207872185U - Fluidization gas-solid heat exchange device and sorbent reactions also original system - Google Patents
Fluidization gas-solid heat exchange device and sorbent reactions also original system Download PDFInfo
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- CN207872185U CN207872185U CN201721586334.7U CN201721586334U CN207872185U CN 207872185 U CN207872185 U CN 207872185U CN 201721586334 U CN201721586334 U CN 201721586334U CN 207872185 U CN207872185 U CN 207872185U
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Abstract
The utility model is related to fluidization gas-solid heat exchange device and sorbent reactions also original systems,The heat exchanger includes from top to bottom preheating section (12),Heat exchanging segment (14),Outer fluidization regions (6) and burning zone (8),Setting preheating coil pipe (13) in the preheating section (12),Setting particulate matter flows into mouth (2) at the top of preheating section (12),Heat exchanging segment (14) includes particle flow area and thermal current area (5),Preheating section (12) is communicated through particle flow area with outer fluidization regions (6),Thermal current area (5) is communicated with burning zone (8),Setting loosens gas outlet (1) at the top of particle flow area,Outer fluidization regions (6) bottom, which is equipped with, loosens gas import (9) and particle stream outlet (7),Thermal current area (5) top is arranged combustion tail gas and exports (10),The burning zone (8) is provided with fuel gas entrance.Heat exchanger device provided by the utility model can directly utilize heat caused by burning, improve the efficiency of heating surface.
Description
Technical field
The utility model is related to a kind of from pre- thermal fluidization gas-solid heater and sorbent reactions also original system.
Background technology
In the gas-solid fluidized bed type reaction system continuously recycled, it is necessary to which reaching certain temperature goal response could occur.
Different measure can be taken to meet differential responses potential temperature, such as passes through high-temperature medium heat exchange, the exothermic heat of reaction of itself, external heat
Mode.
CN200810113392.7 and CN200910162162.4 is directed to the gas-solid fluidized bed type reaction system continuously recycled
It proposes using the high-temperature regenerated catalyst in catalytic cracking regenerator as heat source, is heated by the way of directly or indirectly contacting
The particulate matter of relative low temperature.
CN201010267428.4, CN201010267743.9 and CN201010283120.9 are directed to the gas-solid continuously recycled
Fluidized bed type reaction system proposes the high-temperature mixed gas generated using the burning of imflammable gas part and another stock also Primordial Qi
Body enters adsorbent regenerator together, and adsorbent to be generated is heated using direct-fired mode and is desorbed at high temperature again
It is raw.
In addition Electric heating (such as electrically heated rod or electric furnace) may be used to heat fluidised particulate matter, but adopt
Electric energy is lost with electrical heating, heating load is limited in a way, it is difficult to meet the changeable situation of commercial operating conditions.
Invention content
The purpose of this utility model is to provide a kind of fluidization gas-solid heat exchange device and sorbent reactions also original system, this practicality
The fluidization gas-solid heat exchange device of novel offer can directly utilize heat caused by burning, improve the efficiency of heating surface.
To achieve the goals above, a kind of fluidization gas-solid heat exchange device provided by the utility model includes from top to bottom pre-
Hot arc 12, heat exchanging segment 14, the outer fluidization regions 6 outside the heat exchanging segment and burning zone 8, the interior setting preheating of the preheating section 12
Coil pipe 13, the 12 top setting particulate matter of preheating section flow into mouth 2, and the heat exchanging segment includes particle flow area and thermal current
Area 5, the preheating section 12 are communicated through particle flow area with the outer fluidization regions 6, the thermal current area 5 and burning zone 8
It communicates, at the top of the particle flow area setting loosening gas outlet 1, and 6 bottom of outer fluidization regions, which is equipped with, loosens 9 He of gas import
Particle stream outlet 7,5 top of thermal current area are arranged combustion tail gas and export 10, and the burning zone 8 is provided with combustible gas
Body entrance 26.
Preferably, the loosening gas exports 1 lower part setting filter 11, and the particle flow area connects through filter 11
Lead to the loosening gas outlet 1.
Preferably, the filter 11 is porous ceramics or porous sintered metal pipe.
Preferably, the entrance of 10 connection of the combustion tail gas outlet preheating coil pipe 13.
Preferably, the bottom of the outer fluidization regions 6 surrounds the heat exchanging segment bottom, and the burning zone 8 passes through outflow
Change area 6 to communicate with the thermal current area 5.
Preferably, the particle dispersion area 3 and an at least heating tube 4 that the particle flow area includes top, it is described
3 heated pipe 4 of particle dispersion area is communicated with the outer fluidization regions 6, and the particulate matter flows into mouth 2 and loosens gas outlet 1 and sets
It is placed in the top of the particle dispersion area 3.
Preferably, the top of the outer fluidization regions 6 is connect with the heat exchanging segment closed front, is located at closing described
Heat exchanging segment 0-80% from top to bottom position.
Preferably, the internal diameter of the heating tube is 5~200mm, more preferably 10~150mm.
Preferably, the bottom of the outer fluidization regions 6 is formed as reclinate arc, more preferably spherical surface.
It includes the adsorptive reactor being sequentially communicated that the utility model, which also provides a kind of sorbent reactions also original system, system,
16, above-mentioned fluidization gas-solid heat exchange device and reducing/regenerating device 15,16 bottom of the adsorptive reactor are provided with regenerated flue gas and enter
Mouthfuls 18, adsorbent entrance 17, top are provided with adsorbent outlet 20 to be generated, regenerated flue gas outlet 19, the reducing/regenerating device 15
It is provided with also Primordial Qi entrance 22, reduction offgas outlet 21, adsorbent entrance 27 to be generated and reproducing adsorbent outlet 23, the suction
The adsorbent outlet to be generated 20 of reaction enclosure device 16 flows into mouth 2 with the particulate matter of the fluidization gas-solid heat exchange device and is connected to, described
The particle stream outlet 7 of fluidization gas-solid heat exchange device be connected to the adsorbent entrance 27 to be generated of the reducing/regenerating device 15,
The reproducing adsorbent outlet 23 of the reducing/regenerating device 15 is connected to the adsorbent entrance 17 of the adsorptive reactor 16.
Preferably, the reducing/regenerating device 15, which is additionally provided with, loosens gas entrance, the pine of the fluidization gas-solid heat exchange device
Outlet of taking offence 1 is connected to the loosening gas entrance 25 of the reducing/regenerating device 15.
Preferably, the system is additionally provided with adsorbent cooler 24, and the reproducing adsorbent of the reducing/regenerating device 15 goes out
Mouth is connected to by the adsorbent cooler 24 with the adsorbent entrance of the adsorptive reactor 16.
Fluidization gas-solid heat exchange device and sorbent reactions also original system provided by the utility model have the beneficial effect that：
Fluidization gas-solid heat exchange device provided by the utility model is simple in structure, and burning zone and heat exchanging segment are combined into one, drop
Low energy consumption, saves equipment investment；Preheating section is arranged in heater top, realizes the recycling of heat, improves heat
Utilization ratio.Meanwhile adsorbent to be generated can be loosened by loosening gas and be operated using fluidisation state, and the heat exchange effect between gas-solid is improved
Rate is that the mode of heating of solid particulate matter increases a feasible route.
The heater of the utility model is not limited to the heating of adsorbent, can be widely used in petrochemical industry and environmental protection
Gas-solid heat exchange demand imflammable gas present in industry exists, and occurs in the fluidization gas-solid heat exchange device burning zone of the utility model
Completely burned can generate 700~900 DEG C of combustion tail gas and be heated to spent agent so that the temperature of particulate solid reaches
500~600 DEG C.
Other feature and advantage of the utility model will be described in detail in subsequent specific embodiment part.
Description of the drawings
Attached drawing is to be used to provide a further understanding of the present invention, an and part for constitution instruction, and following
Specific implementation mode be used to explain the utility model together, but do not constitute limitations of the present invention.
Fig. 1 is a kind of structural schematic diagram of embodiment of fluidization gas-solid heat exchange device；
Fig. 2 is the structural schematic diagram of second of embodiment of fluidization gas-solid heat exchange device；
Fig. 3 is the flow diagram of sorbent reactions also original system.
Wherein：
1- loosens gas outlet；2- particulate matters flow into mouth；3- particles dispersion area；
4- heating tubes；5- thermal currents area；The outer fluidization regions 6-；
7- particle stream outlets；8- burning zones；9- loosens gas import；
10- combustion product gases export；11- filters；12- preheating sections；
13- preheats coil pipe；14- heat exchanging segments；15- reducing/regenerating devices；
16- adsorptive reactors；17- adsorbent entrances；18- regenerated flue gas entrances；
19- regenerated flue gas exports；20- adsorbent outlets to be generated；21- also Primordial Qi entrances；
22- restores offgas outlet；23- reproducing adsorbents export；24- adsorbent coolers；
25- regenerators loosen gas entrance；26- fuel gas entrances；27- adsorbent entrances to be generated；
28~32 be pipeline.
Specific implementation mode
Specific embodiment of the present utility model is described in detail below in conjunction with attached drawing.It should be understood that herein
Described specific implementation mode is only used for describing and explaining the present invention, and is not intended to limit the utility model.
In the utility model, if without specified otherwise, the top of container refers to the position of the 0-50% of container from top to bottom, is held
The lower part of device refers to the position of the 50-100% of container from top to bottom, refers to the 0-10% of container from top to bottom at the top of container
Position, the bottom of container refer to the position of the 90-100% of container from top to bottom.
Attached drawing 1 is a kind of structural schematic diagram of embodiment of fluidization gas-solid heat exchange device provided by the utility model, such as
Shown in attached drawing 1, fluidization gas-solid heat exchange device includes from top to bottom preheating section 12, heat exchanging segment 14, outer outside the heat exchanging segment
Particulate matter is arranged in fluidization regions 6 and burning zone 8, the interior setting preheating coil pipe 13 of the preheating section 12,12 top of preheating section
Mouth 2 is flowed into, the heat exchanging segment includes particle flow area and thermal current area 5, and the preheating section 12 is through particle flow area and institute
The outer fluidization regions 6 stated communicate, and the thermal current area 5 is communicated with burning zone 8, setting loosening gas at the top of the particle flow area
Outlet 1,6 bottom of outer fluidization regions is equipped with loosening gas import 9 and particle stream outlet 7,5 top of thermal current area are set
Combustion tail gas outlet 10 is set, the burning zone 8 is provided with fuel gas entrance 26.The loosening gas exports the setting of 1 lower part
Filter 11, the particle flow area are connected to the loosening gas outlet 1 through filter 11.The filter can be more
Hole ceramics, can also be porous sintered metal pipes, and to this utility model, there is no limit.
In fluidization gas-solid heat exchange device provided by the utility model, setting is pre- at upper cover at the top of fluidization gas-solid heat exchange device
Hot arc 12, built-in preheating coil pipe 13 heat after being preheated to spent agent, realize the recycling of heat, improve heat
Utilization ratio.
The heating tube be for solid particle flow to be heated by tube side, outside the heating tube and heat exchanger
The shell side that wall surrounds is thermal current area 5, and the particle dispersion area 3 is a round-like structure, for shell side is detached with upper cover,
For particulate matter being uniformly distributed into shell side or tube side.
In fluidization gas-solid heat exchange device provided by the utility model, the burning zone 8 is provided with fuel gas entrance 26,
The fuel gas entrance 26 can be one or more, enter burning zone to facilitate the introduction of fuel and air.Such as it can be with
Setting is respectively set two entrances and introduces air and fuel gas respectively.
The carrying out practically flow of fluidization gas-solid heat exchange device provided by the utility model is as follows：
As shown in Fig. 1, adsorbent to be generated by particulate matter flow into mouth 2 enter heater in preheating section 12, through with it is pre-
Enter in the particle flow area of heat exchanging segment 14 after the contact preheating of hot coil 13.Air and fuel together through fuel gas entrance 26,
Or air, through air intake, fuel respectively enters 8 lower part of burning zone through imflammable gas entrance, is fired in burning zone 8
Burn reaction, the temperature of generated combustion product gases can be 700-900 DEG C, from the combustion product gases outlet 10 at 8 top of burning zone into
Enter in thermal current area 5 and is changed with the adsorbent to be generated fluidized by the loosening gas for loosening gas entrance 9 from pipe in particle flow area
Heat, heat exchange to 500-600 DEG C of adsorbent to be generated are sent out from particulate matter outlet 7, and which part adsorbent to be generated is loosening gas
It advertises down and is full of outer fluidization regions 6, the combustion product gases after heat exchange are sent into preheating coil pipe 13 from combustion product gases outlet 10 for preheating
After adsorbent to be generated, sends out and carry out follow-up desulphurization denitration processing.
Single heating tube may be used in the heating tube 4, can also be more heating tubes arranged side by side.Cold medium is to fluidize
State formal operations can select heat carrier to walk shell side, and cold medium walks tube side, and heat carrier can also be selected to walk tube side, and cold medium is walked
Shell side.It is preferred that heat carrier walks tube side, cold medium walks shell side.
It when solid particulate matter walks tube side, preferably fluidizes for convenience of particulate matter, enters by particle conducive to particulate matter after heating
Pooling zone 6, so tube side uses one-pass operation, heat smoke walks shell side, to make full use of heat, it is proposed that uses Multiple Pass Operation.
The internal diameter of the heat exchanger tube is preferably 5~200mm, more preferable 10~150mm, and specific single tube internal diameter is according to industry
Interior well known knowledge and specific industrial fact are determined.
Reclinate arc is formed on 6 bottom of outer fluidization regions, and the bottom of more preferable outer fluidization regions 6 is spherical, profit
Particulate matter storage, conveying after heating.
In use, the loosening gas is reducibility gas to fluidization gas-solid heat exchange device provided by the utility model
Or inert gas, one kind in hydrogen, carbon monoxide and hydro carbons containing 1-5 carbon atom of affiliated reducibility gas or
It is several.The inert gas one or more of group 0 element, nitrogen, carbon dioxide and vapor in periodic table.
The spent agent promotes the preferred inert gas of gas.
The burning zone 8 is set to fluidization gas-solid heat exchange device lower part, is reacted for gas fuel burning, and described can
Combustion property gas can be the dry gas in natural gas, liquefied petroleum gas and oil plant.Heat smoke after burning enters shell side or tube side
Spent agent is heated, is exported and is discharged by combustion product gases after heating.
The loosening gas gas flow rate, particle density of the particulate matter in heat exchanger is according to row knowledge known in the industry
It is determined with specific industrial fact.
Attached drawing 2 is the structural schematic diagram of second of embodiment of fluidization gas-solid heat exchange device provided by the utility model,
Unlike attached drawing 1, the top of outer fluidization regions 6 and the heat exchanging segment closed front are located at the heat exchanging segment at closing
From top to bottom at about 70% position.
The utility model is as shown in Fig. 2, and adsorbent to be generated flows into the preheating section that mouth 2 enters in heater by particulate matter
12, enter in the particle flow area of heat exchanging segment 14 after contacting preheating with preheating coil pipe 13.Air and fuel enter from fuel gas
Mouth 26 enters 8 lower part of burning zone or air and respectively enters burning pars infrasegmentalis simultaneously through fuel gas entrance through air intake, fuel
Combustion reaction occurs, the temperature for the generated flue gas that burns can be 700-900 DEG C, go out from the combustion product gases at 8 top of burning zone
Mouthfuls 10 enter in thermal current areas 5 with the absorption to be generated by being fluidized from the loosening gas for loosening gas entrance 9 in particle flow area
Agent exchanges heat, and heat exchange to 500-600 DEG C of adsorbent to be generated is sent out from particulate matter outlet 7, and which part adsorbent to be generated is loosening
Outer fluidization regions 6 are full of under the advertising of gas, the combustion product gases after heat exchange are sent into preheating coil pipe 13 from combustion product gases outlet 10 and are used for
The follow-up desulphurization denitration processing of progress is sent out after preheating adsorbent to be generated.
Attached drawing 3 is the flow diagram of sorbent reactions also original system.By attached drawing 3 as it can be seen that sorbent reactions also original system
Including the adsorptive reactor 16, above-mentioned fluidization gas-solid heat exchange device and reducing/regenerating device 15 being sequentially communicated, the adsorption reaction
16 bottom of device is provided with regenerated flue gas entrance 18, adsorbent entrance 17, and top is provided with adsorbent outlet 20 to be generated, regenerated flue gas
Outlet 19, the reducing/regenerating device 15 are provided with also Primordial Qi entrance 22, reduction offgas outlet 21, adsorbent entrance 27 to be generated and again
Raw adsorbent outlet 23, the adsorbent outlet to be generated 20 of the adsorptive reactor 16 and the fluidization gas-solid heat exchange device
Particulate matter flows into the connection of mouth 2, the particle stream outlet 7 of the fluidization gas-solid heat exchange device and the reducing/regenerating device 15
Adsorbent entrance 27 to be generated is connected to, reproducing adsorbent outlet 23 and the adsorptive reactor 16 of the reducing/regenerating device 15
Adsorbent entrance 17 is connected to.
Reducing gas may be used due to loosening gas (being referred to as promoting gas or fluidized gas) in heat exchanger, it is such as attached
Shown in Fig. 3, the reducing/regenerating device 15, which is also provided with, loosens gas entrance 25, the loosening gas outlet 1 at the top of the heat exchanger
It can be connected to the loosening gas entrance 25 of the reducing/regenerating device 15, to improve the utilization rate for loosening gas.
Reduction adsorption agent (or being reproducing adsorbent) temperature after reduction is higher than the reaction temperature of adsorptive reactor, described
System is also provided with adsorbent cooler 24, and the reduction adsorption agent outlet of the reducing/regenerating device 15 can pass through the suction
Attached dose of cooler 24 is connected to the reduction adsorption agent entrance of the adsorptive reactor 16, to which reducing agent is cooled to suitable temperature
It is re-fed into after degree in adsorptive reactor 16.
Referring to the drawings 3, illustrate fluidization gas-solid heat exchange device in systems by taking flue gas desulfurization and denitrification reacts as an example
It uses：
Adsorbent is added in the adsorptive reactor 16 of recirculating fluidized bed, pending flue gas is by 16 bottom of adsorptive reactor
Portion enters adsorptive reactor, and adsorbent bed haptoreaction, the SO contained in adsorbing and removing flue gasXAnd NOX, purified tail
Adsorptive reactor 16 is discharged in gas after conventional dedirt, and the operation temperature of adsorptive reactor 16 is at 200 DEG C or so.It is to be generated after absorption
Adsorbent, which is entered by pipeline 31 in fluidization gas-solid heat exchange device, to be heated, and is loosened gas and is entered fluidization gas by loosening gas entrance 29
Gu the particle flow area of heat exchanger promotes adsorbent to be generated, fluidisation state operation is formed, heat exchange efficiency is improved.Loosen gas by
15 bottom of reduction reactor is delivered to by pipeline 32 after filter 11 leaves.The temperature of heat exchanging segment 2 bottom and reduction reactor 15
Spend it is same or similar, at 500-600 DEG C.High-temperature adsorbing agent after heating enters via pipeline 30 in reduction reactor 15
Reducing/regenerating is carried out, reducibility gas is passed through by the also Primordial Qi entrance 22 of regenerator bottoms, and reduction tail gas is through also Primordial Qi outlet 21
Discharge reduction reactor 15 carries out subsequent processing after carrying out conventional dedirt.Adsorbent after reduction is delivered to adsorbent cooling
Device 24 is delivered to adsorptive reactor 16 after being cooled to adsorption reaction temperature, completes a cyclic process.
Claims (12)
1. a kind of fluidization gas-solid heat exchange device, which is characterized in that include from top to bottom preheating section (12), heat exchanging segment (14), surround
Outer fluidization regions (6) outside the heat exchanging segment and burning zone (8), the interior setting preheating coil pipe (13) of the preheating section (12) are described
Preheating section (12) at the top of setting particulate matter flow into mouth (2), the heat exchanging segment (14) includes particle flow area and thermal current area
(5), the preheating section (12) is communicated through particle flow area with the outer fluidization regions (6), the thermal current area (5) and combustion
It burns section (8) to communicate, at the top of the particle flow area setting loosening gas outlet (1), and described outer fluidization regions (6) bottom is equipped with pine
It takes offence import (9) and particle stream outlet (7), described thermal current area (5) top is arranged combustion tail gas and exports (10), described
Burning zone (8) is provided with fuel gas entrance (26).
2. fluidization gas-solid heat exchange device described in accordance with the claim 1, which is characterized in that the loosening gas exports (1) lower part
Filter (11) is set, and the particle flow area exports (1) through filter (11) the connection loosening gas.
3. fluidization gas-solid heat exchange device described in accordance with the claim 1, which is characterized in that the combustion tail gas outlet (10) is even
Lead to the entrance of the preheating coil pipe (13).
4. according to any fluidization gas-solid heat exchange device in claim 1-3, which is characterized in that the outer fluidization regions
(6) bottom surrounds heat exchanging segment (14) bottom, and the burning zone (8) passes through outer fluidization regions (6) and the thermal current
Area (5) communicates.
5. fluidization gas-solid heat exchange device according to claim 4, which is characterized in that the top of the outer fluidization regions (6)
With described heat exchanging segment (14) closed front, the position of heat exchanging segment 0-80% from top to bottom is located at closing.
6. according to any fluidization gas-solid heat exchange device in claim 1-3, which is characterized in that the particle flow
Area include top particle dispersion area (3) and an at least heating tube (4), particle dispersion area (3) the heated pipe (4) and
The outer fluidization regions (6) communicate, and the particulate matter, which flows into mouth (2) and loosens gas outlet (1), is set to the particle point
Dissipate the top of area (3).
7. fluidization gas-solid heat exchange device according to claim 6, which is characterized in that the internal diameter of the heating tube be 5~
200mm。
8. fluidization gas-solid heat exchange device according to claim 7, which is characterized in that the internal diameter of the heating tube be 10~
150mm。
9. fluidization gas-solid heat exchange device according to claim 4, which is characterized in that the bottom of the outer fluidization regions (6)
For spherical surface.
10. a kind of sorbent reactions also original system, which is characterized in that the system include the adsorptive reactor (16) being sequentially communicated,
Fluidization gas-solid heat exchange device described in any one of claim 1-9 and reducing/regenerating device (15), the adsorptive reactor
(16) bottom is provided with regenerated flue gas entrance (18), adsorbent entrance (17), and top is provided with adsorbent outlet to be generated (20), again
Raw exhanst gas outlet (19), the reducing/regenerating device (15) are provided with also Primordial Qi entrance (22), reduction offgas outlet (21), suction to be generated
Attached dose of entrance (27) and reproducing adsorbent outlet (23), the adsorbent outlet to be generated (20) of the adsorptive reactor (16) and institute
The particulate matter for the fluidization gas-solid heat exchange device stated flows into mouth (2) connection, the particulate matter outflow of the fluidization gas-solid heat exchange device
Mouth (7) is connected to the adsorbent entrance (27) to be generated of the reducing/regenerating device (15), and the reducing/regenerating device (15) is again
Raw adsorbent outlet (23) is connected to the adsorbent entrance (17) of the adsorptive reactor (16).
11. sorbent reactions also original system according to claim 10, which is characterized in that the reducing/regenerating device (15) is also
It is provided with and loosens gas entrance (25), loosening gas outlet (1) and the reducing/regenerating device of the fluidization gas-solid heat exchange device
(15) loosening gas entrance (25) connection.
12. according to the also original system of the sorbent reactions described in claim 10 or 11, which is characterized in that the system is additionally provided with
The reproducing adsorbent outlet of adsorbent cooler (24), the reducing/regenerating device (15) passes through the adsorbent cooler (24)
It is connected to the adsorbent entrance of the adsorptive reactor (16).
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721586334.7U CN207872185U (en) | 2017-11-23 | 2017-11-23 | Fluidization gas-solid heat exchange device and sorbent reactions also original system |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721586334.7U CN207872185U (en) | 2017-11-23 | 2017-11-23 | Fluidization gas-solid heat exchange device and sorbent reactions also original system |
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| Publication Number | Publication Date |
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| CN207872185U true CN207872185U (en) | 2018-09-18 |
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ID=63501009
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2017
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