CN208928127U - Radial temperature control reactor - Google Patents
Radial temperature control reactor Download PDFInfo
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- CN208928127U CN208928127U CN201821372874.XU CN201821372874U CN208928127U CN 208928127 U CN208928127 U CN 208928127U CN 201821372874 U CN201821372874 U CN 201821372874U CN 208928127 U CN208928127 U CN 208928127U
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- gas
- temperature control
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- redistributor
- cover plate
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Abstract
The utility model discloses a kind of radial temperature control reactors, technical solution includes shell, the case top sets gas feed, bottom sets gas vent, side wall sets cooling water inlet and steam (vapor) outlet, the shell middle section is equipped with the center gas collecting jar with ground-on cover plate of wall surface aperture, and the upper end of the center gas collecting jar with ground-on cover plate is closed end, and lower end is connected to gas vent；The center gas collecting jar with ground-on cover plate is externally provided with catalyst bed, tube coil cylinder is equipped in the catalyst bed, the gas redistributor of tubular is cased with outside the catalyst bed, the top surface of the gas redistributor sets gas baffle, bottom surface sets catalyst support ring flat-plate, and the sealing plate of annular is set between the lower section and shell of the gas redistributor；The upper end of the tube coil cylinder passes through gas baffle and is connected to steam (vapor) outlet, and lower end passes through catalyst support ring flat-plate and is connected to cooling water inlet.The utility model gas is evenly distributed, is convenient for disassembly and assembly, easy enlargement, long service life, temperature control effect are good.
Description
Technical field
The utility model relates to a kind of reactor, specifically a kind of radial temperature control reactor
Background technique
Conversion gas reacts can generate amount of heat, operation control system under the action of catalyst in change furnace in purification device
Not in place, if change furnace uses shell and tube change furnace, catalyst bed resistance drop is larger, and the bad overtemperature that has of multi-time control system shows
As being damaged to transformation furnace shell.Methanol synthesizer methanol reactor system, control system between methanol reactor and drum
It is arranged not in place, methanol reactor has equally used axial flow reactor, and reaction bed temperature should not control, and frequent overtemperature subtracts
The service life for having lacked catalyst and methanol reactor, being safely operated to exist on methanol reactor influences.Synthesis gas preparing ethylene glycol
Technology has gradually tended to be mature in terms of the exploitation of technique packet, catalyst research and development, engineering construction, technological operation, but glycol unit
In to temperature control reactor running protection, prevent from reactor from generating chain reaction leading to the safeguard procedures such as high temperature there is also improvedly
Side.The defects of existing shaft type temperature control reactor is difficult to enlargement simultaneously, and bed resistance drop is big, and reaction temperature is difficult to control.
Existing temperature control reactor assembly is primarily present following problems:
(1) domestic driven isothermal change furnace, methanol reactor, hydrogenator, synthesis operation and building
Reactor etc. is all traditional shell and tube shaft type reactor, i.e., for catalyst in tubulation, gas is catalyzed reaction, gas in heat exchanger tube
Body flow direction is axially consistent with equipment.Though the structure heat exchanger tube stringing is more, caliber is small, and loading catalyst amount is few, if increasing heat exchange
Length of tube will be such that bed resistance further increases, and catalysis reaction is caused to be unable to run.Therefore scale of the project can not be enlarged,
All it is more combination of reactors of several series, causes project investment larger.
(2) reactor synthesis gas entrance is limited due to size, and common gases distributor can not be such that synthesis gas is unevenly distributed,
Easily cause local reaction in tubulation excessive, chain reaction locally occurs for sintering of catalyst, partial catalyst, moves heat not in time very
To generation explosion danger.And reaction is extremely sensitive to temperature, even if the temperature deviation of very little all can be to feed stock conversion and product
Composition generates tremendous influence.
Summary of the invention
The purpose of the present invention is to solve above-mentioned technical problem, provide a kind of gas be evenly distributed, be convenient for disassembly and assembly, Yi great
The good radial temperature control reactor of type, long service life, temperature control effect.
Technical solution includes shell, and the case top sets gas feed, and bottom sets gas vent, side wall set cooling water into
Mouth and steam (vapor) outlet, the shell middle section are equipped with the center gas collecting jar with ground-on cover plate of wall surface aperture, and the upper end of the center gas collecting jar with ground-on cover plate is closing
End, lower end is connected to gas vent；The center gas collecting jar with ground-on cover plate is externally provided with catalyst bed, is equipped with coil pipe in the catalyst bed
Cylinder, the catalyst bed are cased with the gas redistributor of tubular outside, and the top surface of the gas redistributor sets gas baffle,
Bottom surface sets catalyst support ring flat-plate, and the sealing plate of annular is set between the lower section and shell of the gas redistributor；The coil pipe
The upper end of cylinder passes through gas baffle and is connected to steam (vapor) outlet, and lower end passes through catalyst support ring flat-plate and is connected to cooling water inlet.
The shell upper section setting tool has the rigid strutting piece of inner flow passage, and the upper end of the tube coil cylinder is fixed on the rigidity
On supporting element, and the inner flow passage through rigid strutting piece is connected to the steam (vapor) outlet；The center gas collecting jar with ground-on cover plate and gas redistribution
The upper end of device is suspended on the rigid strutting piece.
The gas inlet is equipped with inlet gas distributor.
The gas redistributor is hole cartridge-type gas distributor or riser type gas distributor.
The outer ring side of the center gas collecting jar with ground-on cover plate and the inner ring side of gas redistributor are equipped with silk screen.
The sealing plate is immunity sealing plate.
The rigid strutting piece is " cross " rigid forging.
Card trough is provided on the catalyst support ring flat-plate, the lower end of the tube coil cylinder is mounted in snap-gauge through elastic card board
In slot.
The utility model has the advantages that
1) synthesis gas is evenly distributed.Set multistage distribution gas in reactor, gas with synthesis gas through inlet gas distributor and
Gas redistributor enters catalyst bed, guarantees to enter gas in catalyst bed and is evenly distributed, reduces Biased flow phenomenon, avoid
Local reaction is excessive and leads to phenomena such as moving hot unevenness, sintering of catalyst.
2) temperature control reactor can be enlarged, reacts especially suitable for methanol.Gas ecto-entad Radial Flow, bed are thick
Degree is the same, and it is suitable that gas flows through route, provides heat transfer efficiency；Heat exchanger tube uses the tube coil cylinder structure formed around pipe simultaneously,
When required heat exchange area is larger, tube coil cylinder length can be unrestricted, provides guarantee for radial direction temperature control reactor enlargement；
Gas Radial Flow realizes that catalyst bed phase linear velocity is descending, reduces the generation of side reaction product, extends catalyst
Service life reduces the operating cost of glycol unit.
3) traditional fixed tube sheet is replaced using rigid strutting piece, takes floating support structure, solves because of fixed tube sheet band
The reactor enlargement problem come, such as expansion joint, tubesheet dimension restraining factors.
4) service life of equipment is improved.Using tube coil cylinder structure, which in all directions can be with free extension, effectively
Thermal stress is eliminated, ensure that the service life of heat exchanger tube and equipment.
5) catalyst loading and unloading is easy.It, can since catalyst is directly filled between center gas collecting jar with ground-on cover plate and redistributor
To be directly loadable between each concentric coil pipe cylinder ring gap from case top manhole, as long as unloading catalyst unloads catalyst support net,
Catalyst can be drawn off from bottom discharge mouth, easy to maintain.
6) temperature control reactor lower part is without hydrops.Since cooling medium walks tube side, housing bottom gas outlet temperature compared with
It is high, it is ensured that the regional temperature that lower section gas phase reaches is higher than dew point, not will form hydrops.
Detailed description of the invention
Fig. 1 is the system diagram that the utility model is used to control reaction system.
Fig. 2 is the utility model structure diagram.
Fig. 3 is the structural schematic diagram of rigid strutting piece.
Fig. 4 is the scheme of installation of elastic snap-gauge and tube coil cylinder.
Wherein, R1- axial direction temperature control reactor, D2- drum, P3- transportation water pump, PC- pressure valve, LC- Self-controllable level meter, 1-
Inlet gas distributor, 2- silk screen, 3- rigid strutting piece, 3.1- inner flow passage, 4- bearing rib, the center 5- gas collecting jar with ground-on cover plate, 6- gas
Redistributor, 7- catalyst bed, 8- gas baffle, 9- tube coil cylinder, 10- catalyst support ring flat-plate, 10.1- Card trough, 11-
Immunity sealing plate, 12- shell, 13- gas feed, 14- gas vent, 15- cooling water inlet, 16- steam (vapor) outlet, 17- elasticity
Snap-gauge.
Specific embodiment
Explanation is further explained to the utility model with reference to the accompanying drawing:
Referring to fig. 2 and Fig. 3, gas feed 13 is set at the top of the shell 12, the gas inlet 13 is equipped with inlet gas
Distributor 1, bottom set gas vent 14, and side wall sets cooling water inlet 15 and steam (vapor) outlet 16, and the 12 middle section center of shell is set
There is the center gas collecting jar with ground-on cover plate 5 of wall surface aperture, the upper end of the center gas collecting jar with ground-on cover plate 5 is closed end, and lower end is connected to gas vent 14；Institute
It states center gas collecting jar with ground-on cover plate 5 and is externally provided with catalyst bed 7, be equipped with tube coil cylinder 9, the catalyst bed 7 in the catalyst bed 7
It is cased with the gas redistributor 6 of tubular outside, the top surface of the gas redistributor 6 sets gas baffle 8, and bottom surface sets catalyst support
Ring flat-plate 10 sets the immunity sealing plate 11 of annular, the center gas collecting jar with ground-on cover plate between the lower section and shell 12 of the gas redistributor 6
5 outer ring side and the inner ring side of gas redistributor 6 are equipped with silk screen 2；The upper end of the tube coil cylinder 9 passes through gas baffle 8
It is threadedly coupled with the rigid strutting piece 3, and is connected to through the inner flow passage of rigid strutting piece 3 3.1 with the steam (vapor) outlet 16, it is described
The lower end of tube coil cylinder 9 passes through lower catalyst support ring flat-plate 10 and is connected to cooling water inlet 15.Specifically, the catalyst support
Card trough 10.1 is provided on ring flat-plate 10, the lower end of the tube coil cylinder 9 is installed in 10.1 in Card trough through elastic snap-gauge 17.Institute
The upper end for stating center gas collecting jar with ground-on cover plate 5 and gas redistributor 6 is suspended on the rigid strutting piece 3.The rigid strutting piece is " ten
Font " rigidity forging, the gas redistributor 6 are hole cartridge-type gas distributor or riser type gas distributor.The coil pipe
Cylinder 9 is the multilayer concentric tube coil cylinder structure that more heat exchanger tubes turn to.
Synthetic gas enters from case top gas feed 13, wears after the primary uniformly even gas distribution of inlet gas distributor 1
The circumference that gas gear is divided gas redistributor 6 by gas baffle 8 by rigid strutting piece 3 is crossed, gas is blocked by immunity sealing plate 11
It moves down, surrounding gas is radially evenly distributed again through gas redistribution outer cylinder 6 into catalyst bed 7, with catalyst reaction
While also exchange heat with pipe cylinder 9, the heat of synthetic reaction turns to steam zone by the aqueous vapor in tube coil cylinder 9 and walks, reaction
Synthesis gas afterwards is radially discharged after the collection of center gas collecting jar with ground-on cover plate 5 to the lower gas vent 14 through housing bottom again.
For cooling water after the synthesis gas indirect heat exchange that cooling water inlet 15 enters with catalyst bed 7, steam is round from coil pipe
It send via the inner flow passage 3.1 of rigid strutting piece 3 to steam (vapor) outlet 16 and is discharged in 9 upper ends of cylinder.The catalyst filled between tube coil cylinder 9
It is covered by 8 top of gas baffle, by 10 lower support of catalyst support ring flat-plate, and gentle by the outer ring side of center gas collecting jar with ground-on cover plate 5
The silk screen 2 of the inner ring side of body redistributor 6 prevents catalyst from leaking out.The center gas collecting jar with ground-on cover plate 5, gas redistributor 6 and coil pipe
The upper end of cylinder 9 is suspended on rigid strutting piece 3.
It can be proceeded as follows when being used cooperatively with high-order drum D2 as the application implementation of the utility model:
Under normal operating operating condition, high-order drum D2 is arranged in the top of temperature control reactor R1, and it is poor that there are height levels, high
Water in the drum D2 of position enters in temperature control reactor R1 by gravity circulation, work of the water in axial temperature control reactor R1 in reaction heat
Enter high-order drum D2 with lower generation steam water interface, the steam of high-order drum D2 enters back into steam pipe network, carries out always such
Circulation is not necessarily to other power transmissions, guarantees that the system operates normally.
Under special operation condition, it is provided with temperature detector thermocouple in axial temperature control reactor R1, once detect temperature
When fluctuating excessive, DCS control system just will start transportation water pump P3, increase input water, and such forced circulation can stablize axis
To the reaction bed temperature of temperature control reactor R1, it is ensured that temperature control reactor is protected in axial temperature control reactor R1 safe operation.Conveying
Water pump P 3 is that three progress are in parallel, and being set as two, to open one standby.It is also equipped with emergency stock power supply device in the electric system of pump, it is external
Once power-off, the emergency power supply which is furnished with can provide power source to transportation water pump P3, operate normally transportation water pump P3 not
It is affected, axial temperature control reactor R1 is further protected to be safely operated.
Claims (8)
1. a kind of radial direction temperature control reactor, including shell, the case top set gas feed, bottom sets gas vent, side wall
If cooling water inlet and steam (vapor) outlet, which is characterized in that the shell middle section be equipped with wall surface aperture center gas collecting jar with ground-on cover plate, it is described in
The upper end of heart gas collecting jar with ground-on cover plate is closed end, and lower end is connected to gas vent；The center gas collecting jar with ground-on cover plate is externally provided with catalyst bed, described
It is equipped with tube coil cylinder in catalyst bed, the gas redistributor of tubular is cased with outside the catalyst bed, the gas divides again
The top surface of cloth device sets gas baffle, and bottom surface sets catalyst support ring flat-plate, sets between the lower section and shell of the gas redistributor
The sealing plate of annular；The upper end of the tube coil cylinder passes through gas baffle and is connected to steam (vapor) outlet, and lower end passes through catalyst support
Ring flat-plate is connected to cooling water inlet.
2. radial direction temperature control reactor as described in claim 1, it is characterised in that, the shell upper section setting tool has the rigid of inner flow passage
Property supporting element, the upper end of the tube coil cylinder is fixed on the rigid strutting piece, and the inner flow passage through rigid strutting piece and institute
State steam (vapor) outlet connection；The upper end of the center gas collecting jar with ground-on cover plate and gas redistributor is outstanding also to be hung on the rigid strutting piece.
3. radial direction temperature control reactor as described in claim 1, it is characterised in that, the gas inlet is equipped with inlet gas point
Cloth device.
4. radial direction temperature control reactor as claimed in claim 3, it is characterised in that, the gas redistributor is hole cartridge-type gas
Distributor or riser type gas distributor.
5. radial direction temperature control reactor as claimed in claim 3, it is characterised in that, the outer ring side of the center gas collecting jar with ground-on cover plate and gas
The inner ring side of redistributor is equipped with silk screen.
6. radial direction temperature control reactor as described in any one in claim 1-5, it is characterised in that, the sealing plate is immunity sealing
Plate.
7. radial direction temperature control reactor as claimed in claim 2, it is characterised in that, the rigid strutting piece is " cross " rigidity
Forging.
8. radial direction temperature control reactor as described in any one in claim 1-5, it is characterised in that, on the catalyst support ring flat-plate
It is provided with Card trough, the lower end of the tube coil cylinder is through elastic card board in Card trough.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821372874.XU CN208928127U (en) | 2018-08-24 | 2018-08-24 | Radial temperature control reactor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821372874.XU CN208928127U (en) | 2018-08-24 | 2018-08-24 | Radial temperature control reactor |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN208928127U true CN208928127U (en) | 2019-06-04 |
Family
ID=66718649
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201821372874.XU Active CN208928127U (en) | 2018-08-24 | 2018-08-24 | Radial temperature control reactor |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN208928127U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111250000A (en) * | 2020-03-23 | 2020-06-09 | 江苏普格机械有限公司 | Central gas collecting pipe of shift converter |
| CN111821924A (en) * | 2020-07-13 | 2020-10-27 | 江苏永大化工机械有限公司 | DMO reactor |
| CN113509894A (en) * | 2021-07-22 | 2021-10-19 | 中冶赛迪工程技术股份有限公司 | Moving bed gas-solid radial reactor |
-
2018
- 2018-08-24 CN CN201821372874.XU patent/CN208928127U/en active Active
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111250000A (en) * | 2020-03-23 | 2020-06-09 | 江苏普格机械有限公司 | Central gas collecting pipe of shift converter |
| CN111821924A (en) * | 2020-07-13 | 2020-10-27 | 江苏永大化工机械有限公司 | DMO reactor |
| CN113509894A (en) * | 2021-07-22 | 2021-10-19 | 中冶赛迪工程技术股份有限公司 | Moving bed gas-solid radial reactor |
| CN113509894B (en) * | 2021-07-22 | 2023-04-14 | 中冶赛迪工程技术股份有限公司 | Moving bed gas-solid radial reactor |
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