CN208716844U - A kind of insulation sulphur-resistant conversion device reduced investment outlay - Google Patents
A kind of insulation sulphur-resistant conversion device reduced investment outlay Download PDFInfo
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- CN208716844U CN208716844U CN201821174435.8U CN201821174435U CN208716844U CN 208716844 U CN208716844 U CN 208716844U CN 201821174435 U CN201821174435 U CN 201821174435U CN 208716844 U CN208716844 U CN 208716844U
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Abstract
The utility model discloses a kind of insulation sulphur-resistant conversion devices reduced investment outlay; including the useless pot of inlet outlet heat exchanger, detoxification slot, sulfur-tolerant water gas shift device, steam superheater and conversion gas; the inlet outlet heat exchanger includes low-temperature zone and high temperature section; the sulfur-tolerant water gas shift device includes shell and internal protection cylinder; annular space is formed between the shell and internal protection cylinder; the detoxification slot is connected with the annular space of sulfur-tolerant water gas shift device, and the annular space of the sulfur-tolerant water gas shift device is connected with inlet outlet heat exchanger.The utility model is by being divided into low-temperature zone and high temperature section for unstripped gas inlet outlet heat exchanger; low-temperature zone is worked off one's feeling vent one's spleen after detoxification; annular space into sulfur-tolerant water gas shift device protects shell; subsequently into the high temperature section of inlet outlet heat exchanger; further enter sulfur-tolerant water gas shift device generation sulfur-tolerant water gas shift after preheating and both reduces reactor wall thickness so as to substantially reduce the housing design temperature of sulfur-tolerant water gas shift device; reactor material can be reduced again and selects grade, to can effectively reduce the investment of equipment.
Description
Technical field
The utility model belongs to chemical technology field, in particular to one kind can be applied to coal synthesis ammonia, methanol, natural
The relevant insulation sulphur-resistant conversion device of the producing synthesis gas from coal such as gas, ethylene glycol, hydrogen manufacturing.
Background technique
In insulation sulphur-resistant conversion device, sulfur-tolerant water gas shift device is the equipment of its core the most, is filled in the equipment
More expensive sulfur-resistant transformation catalyst, the unstripped gas into the equipment will be main that following reaction occurs under the effect of the catalyst:
CO+H2O=CO2+H2
Above-mentioned reaction is strong exothermal reaction, although reactor inlet unstripped gas operation temperature not counting high (usually 200~
310 DEG C), but the bed temperature of reactor is up to about 420 DEG C (catalyst initial stages)~450 DEG C (catalyst latter stage), for sufficiently benefit
With this high temperature heat source, type of reactor generallys use heat-insulating, and the outlet of General reactions device connects middle pressure steam superheater, saturation is steamed
Vapour becomes superheated steam, to improve steam quality, so that Shi Quan factory heat utilization is more reasonable.Usually insulation sulfur-tolerant water gas shift
The design temperature of device shell is up to 470~480 DEG C, and equipment design pressure is usually in 4.4~9.7MPa, in so high design
Under pressure and design temperature, the wall thickness of reactor will be very thick, and the buying and processing of plate are extremely difficult, and equipment material requires height,
Equipment investment is also high, and the thermal loss of equipment is also big.
Utility model content
The goal of the invention of the utility model is: in view of the above problems, providing one kind can remain existing
Under the premise of efficient heat utilization, the insulation sulphur-resistant conversion device of equipment investment is effectively reduced.
The technical solution of the utility model is achieved in that a kind of insulation sulphur-resistant conversion device reduced investment outlay, special
Sign is: including inlet outlet heat exchanger, detoxification slot, sulfur-tolerant water gas shift device, steam superheater and conversion gas give up pot, it is described into
Outlet heat exchanger includes low-temperature zone and high temperature section, and the low-temperature zone is provided with raw material gas inlet, the outlet of low temperature feedstock gas and transformation
The low temperature feedstock gas outlet of gas outlet, the low-temperature zone is connected with the import of detoxification slot, and the sulfur-tolerant water gas shift device includes shell
Body and internal protection cylinder are formed with annular space, the outlet of the detoxification slot and sulphur-resistant conversion between the shell and internal protection cylinder
The annular space of reactor is connected, and the annular space of the sulfur-tolerant water gas shift device is connected with the high temperature section import of inlet outlet heat exchanger, described
The high temperature feedstock gas outlet of high temperature section is connected with the high temperature feedstock gas entrance of internal protection cylinder, and carries out in internal protection cylinder resistance to
Sulphur reacting condition, the internal protection cylinder high temperature shift gas outlet is connected with steam superheater, the steam superheater and into
Export heat exchanger connection, for preheating to the unstripped gas in inlet outlet heat exchanger, the inlet outlet heat exchanger and conversion gas
Useless pot connection.
The insulation sulphur-resistant conversion device described in the utility model reduced investment outlay, under the sulfur-tolerant water gas shift device
Portion's end socket is provided with the low temperature feedstock gas entrance being connected to annular space, the top end socket of the sulfur-tolerant water gas shift device be provided with
The protection gas outlet of annular space connection, is provided with first on the low temperature feedstock gas entrance Trunk Line of the sulfur-tolerant water gas shift device
Valve is provided with the second valve on by-pass, and second valve is provided with minimum limit, and first valve and the second valve are in parallel.
The insulation sulphur-resistant conversion device described in the utility model reduced investment outlay, the low-temperature zone of the inlet outlet heat exchanger
With high temperature section combination is in an equipment or the low-temperature zone and high temperature section are respectively two independent equipment.
The insulation sulphur-resistant conversion device described in the utility model reduced investment outlay, the unstripped gas of the inlet outlet heat exchanger
The bypass of import is connect with the import of detoxification slot, and the temperature of implication is entered for adjusting detoxification slot.
The insulation sulphur-resistant conversion device described in the utility model reduced investment outlay, the bypass of detoxification slot outlet with it is resistance to
Bypass connection on the protection gas outlet line of sulphur shift-converter top end socket, for adjusting the annular space of sulfur-tolerant water gas shift device
Protect gas tolerance.
The insulation sulphur-resistant conversion device described in the utility model reduced investment outlay, is arranged at the top of the internal protection cylinder
There is gas distributor, the gas distributor is connected to high temperature feedstock gas entrance, is provided with catalysis in the internal protection cylinder
Agent bed, the gas after reaction enter gas collector, the gas collector and high temperature shift gas outlet.
The insulation sulphur-resistant conversion device described in the utility model reduced investment outlay, is provided in the internal protection cylinder
Axial catalyst bed is filled with sulfur-resistant transformation catalyst in the axial catalyst bed, in the axial catalyst bed
Layer upper and lower end is filled with flame-proof sphere, and the gas collector is arranged in internal protection cylinder bottom.
The insulation sulphur-resistant conversion device described in the utility model reduced investment outlay, is provided in the internal protection cylinder
Radial catalyst bed is filled with sulfur-resistant transformation catalyst in the radial catalyst bed, in the radial catalyst bed
The intermediate gas collector for being provided with connection corresponding with radial catalyst bed of layer, the gas collector upper end is closing knot
Structure, lower end and high temperature shift gas outlet.
The insulation sulphur-resistant conversion device described in the utility model reduced investment outlay is adopted in the radial catalyst bed
With segmentation loading catalyst, upper section loads protective agent or inactive catalyst, and lower section loads sulfur-resistant transformation catalyst,
The radial direction catalyst bed lower end is filled with flame-proof sphere.
The utility model by the way that unstripped gas inlet outlet heat exchanger is divided into low-temperature zone and high temperature section, low-temperature zone work off one's feeling vent one's spleen by
After detoxification, the annular space into sulfur-tolerant water gas shift device protects shell, further pre- subsequently into the high temperature section of inlet outlet heat exchanger
Enter sulfur-tolerant water gas shift device after heat and sulfur-tolerant water gas shift occurs, is set so as to substantially reduce the shell of sulfur-tolerant water gas shift device
Temperature is counted, reactor wall thickness had not only been reduced, but also reactor material can be reduced and select grade, inlet outlet heat exchanger can also be used differential pressure and set
Meter, to can effectively reduce the investment of equipment.
Detailed description of the invention
Fig. 1 is the flow diagram of the utility model.
Fig. 2 is the sulfur-tolerant water gas shift device structural schematic diagram in the utility model with axial catalyst bed.
Fig. 3 is the sulfur-tolerant water gas shift device structural schematic diagram in the utility model with radial catalyst bed.
Marked in the figure: 1 is inlet outlet heat exchanger, 1a is low-temperature zone, and 1b is high temperature section, and 2 be detoxification slot, and 3 be sulphur-resistant conversion
Reactor, 4 be steam superheater, and 5 be the useless pot of conversion gas, and 6 be annular space, and 7 be high temperature feedstock gas entrance, and 8 go out for high temperature shift gas
Mouthful, 9 be low temperature feedstock gas entrance, and 10 export for protection gas, and 11 be the first valve, and 12 be the second valve, and 13 be gas distributor, and 14 are
Catalyst bed, 14a are axial catalyst bed, and 14b is radial catalyst bed, and 15 be gas collector, and 16 be flame-proof sphere,
17 be shell, and 18 be internal protection cylinder.
Specific embodiment
With reference to the accompanying drawing, the utility model is described in detail.
In order to make the purpose of the utility model, technical solutions and advantages more clearly understood, below in conjunction with attached drawing and implementation
Example, the present invention will be further described in detail.It should be appreciated that specific embodiment described herein is only used to explain
The utility model is not used to limit the utility model.
As shown in Figure 1, a kind of insulation sulphur-resistant conversion device reduced investment outlay, including it is inlet outlet heat exchanger 1, detoxification slot 2, resistance to
The useless pot 5 of sulphur shift-converter 3, steam superheater 4 and conversion gas, the inlet outlet heat exchanger 1 include low-temperature zone 1a and high temperature
Section 1b, the low-temperature zone 1a and high temperature section 1b of the inlet outlet heat exchanger 1 combine in an equipment or the low-temperature zone 1a and
High temperature section 1b is respectively two independent equipment.The low-temperature zone 1a is provided with raw material gas inlet, the outlet of low temperature feedstock gas and becomes
The low temperature feedstock gas outlet of ventilation outlet, the low-temperature zone 1a is connected with the import of detoxification slot 2, the sulfur-tolerant water gas shift device 3
Including shell 17 and internal protection cylinder 18, annular space 6, the detoxification slot 2 are formed between the shell 17 and internal protection cylinder 18
Outlet be connected with the annular space 6 of sulfur-tolerant water gas shift device 3, the annular space 6 of the sulfur-tolerant water gas shift device 3 and inlet outlet heat exchanger 1
High temperature section 1b import be connected, the high temperature feedstock gas entrance of the high temperature feedstock gas of the high temperature section 1b outlet and internal protection cylinder 18
7 be connected, and in internal protection cylinder 18 carry out resistant to sulfur reacting condition, the internal protection cylinder 18 high temperature shift gas outlet 8 with
Steam superheater 4 is connected, and the steam superheater 4 is connect with inlet outlet heat exchanger 1, for the original in inlet outlet heat exchanger 1
Material gas is preheated, and the inlet outlet heat exchanger 1 is connect with the useless pot 5 of conversion gas.
Wherein, the low temperature feedstock gas entrance being connected to annular space 6 is provided in the bottom head of the sulfur-tolerant water gas shift device 3
9, it is provided with the protection gas outlet 10 being connected to annular space 6 in the top end socket of the sulfur-tolerant water gas shift device 3, becomes in the resistant to sulfur
It changes on 9 Trunk Line of low temperature feedstock gas entrance of reactor 3 and is provided with the first valve 11, be provided with the second valve 12 on by-pass, described
Two valves 12 are provided with minimum limit, it is ensured that cryogenic gas continues to flow through reactor annular space, first valve 11 and the second valve
12 is in parallel；The bypass of the raw material gas inlet of the inlet outlet heat exchanger 1 is connect with the import of detoxification slot 2, for adjusting detoxification slot 2
Enter the temperature of implication；The protection gas of bypass and 3 top end socket of sulfur-tolerant water gas shift device that the detoxification slot 2 exports exports 10 pipelines
On bypass connection, for adjust sulfur-tolerant water gas shift device 3 annular space protect gas tolerance.
As shown in Figures 2 and 3, gas distributor 13, the gas distributor are provided at the top of the internal protection cylinder 18
13 are connected to high temperature feedstock gas entrance 7, are provided with catalyst bed 14 in the internal protection cylinder 18, the gas after reaction into
Enter gas collector 15, the gas collector 15 is connected to high temperature shift gas outlet 8.
As shown in Fig. 2, axial catalyst bed 14a is provided in the internal protection cylinder 18, in the axial catalysis
It is filled with sulfur-resistant transformation catalyst in agent bed 14a, is filled with flame-proof sphere 16 in the axial catalyst bed 14a upper and lower end,
The gas collector 15 is arranged in 18 bottom of internal protection cylinder.
As shown in figure 3, radial catalyst bed 14b is provided in the internal protection cylinder 18, in the radial catalysis
It is filled with sulfur-resistant transformation catalyst in agent bed 14b, is provided with and radial catalyst among the radial catalyst bed 14b
The gas collector 15 of the corresponding connection of bed 14b, 15 upper end of gas collector are enclosed construction, lower end and high temperature shift
8 connection of gas outlet.
Wherein, using segmentation loading catalyst in the radial catalyst bed 14b, upper section loads protective agent or does not have
Active catalyst, lower section load sulfur-resistant transformation catalyst, are filled with flame-proof sphere in the radial direction lower end catalyst bed 14b
16。
The sulfur-tolerant water gas shift device of the utility model had both had the advantages that generally to be insulated sulfur-tolerant water gas shift device, further through guarantor
The setting of raw material port, overcomes routine after retaining ring gap, bottom inlet low temperature feedstock port, top protection port, top preheating
The shortcomings that being insulated sulfur-tolerant water gas shift device, makes low temperature feedstock gas continue to flow through reactor annular space first, then through inlet outlet heat exchanger
Further enter axially or radially catalyst bed after preheating to react, so as to drop the design temperature of shell of reactor
Low, while equipment wall thickness reduction, can also reduce equipment selection grade so as to substantially reduce equipment investment makes equipment
Operating condition is also more mild, and heat loss is also smaller.
As shown in Figure 1, the insulation sulfur resistant conversion process of the utility model, specifically: unstripped gas initially enters inlet and outlet and changes
The low-temperature zone of hot device obtains unstripped gas A after tentatively preheating.
Unstripped gas A enters detoxification slot, removes the poisonous substance in unstripped gas, obtains unstripped gas B.
Unstripped gas B is sent into the annular space of sulfur-tolerant water gas shift device by low temperature feedstock gas entrance, protects sulfur-tolerant water gas shift device
Shell after, by sulfur-tolerant water gas shift device top end socket protection gas outlet be sent into inlet outlet heat exchanger high temperature section, through into
Unstripped gas C is obtained after the preheating of one step.
Unstripped gas C enters sulfur-tolerant water gas shift device top entry gas distributor by high temperature feedstock gas entrance, through being distributed
Afterwards, the catalyst bed of sulfur-tolerant water gas shift device is flowed through, sulfur-tolerant water gas shift occurs, obtains high temperature shift gas D.
High temperature shift gas D exports out sulfur-tolerant water gas shift device by high temperature shift gas, improves subsequently into steam superheater
After steam grade, conversion gas E is obtained.
Conversion gas E is sent into inlet outlet heat exchanger, is introduced into high temperature section, enters back into low-temperature zone, the preheating heat as unstripped gas
Source obtains conversion gas F.
Conversion gas F enters back into conversion gas and gives up pot, obtains conversion gas G after by-product middle pressure steam, conversion gas G send downstream unit into
The processing of one step.
The above is only the preferred embodiment of the utility model only, is not intended to limit the utility model, all at this
Made any modifications, equivalent replacements, and improvements etc., should be included in the utility model within the spirit and principle of utility model
Protection scope within.
Claims (9)
1. a kind of insulation sulphur-resistant conversion device reduced investment outlay, it is characterised in that: including inlet outlet heat exchanger (1), detoxification slot
(2), sulfur-tolerant water gas shift device (3), steam superheater (4) and conversion gas give up pot (5), and the inlet outlet heat exchanger (1) includes
Low-temperature zone (1a) and high temperature section (1b), the low-temperature zone (1a) are provided with raw material gas inlet, the outlet of low temperature feedstock gas and conversion gas
The low temperature feedstock gas outlet of outlet, the low-temperature zone (1a) is connected with the import of detoxification slot (2), the sulfur-tolerant water gas shift device
(3) include shell (17) and internal protection cylinder (18), be formed with annular space between the shell (17) and internal protection cylinder (18)
(6), the outlet of the detoxification slot (2) is connected with the annular space (6) of sulfur-tolerant water gas shift device (3), the sulfur-tolerant water gas shift device (3)
Annular space (6) be connected with high temperature section (1b) import of inlet outlet heat exchanger (1), the outlet of the high temperature feedstock gas of the high temperature section (1b)
It is connected with the high temperature feedstock gas entrance (7) of internal protection cylinder (18), and carries out resistant to sulfur reacting condition in internal protection cylinder (18),
The internal protection cylinder (18) high temperature shift gas outlet (8) be connected with steam superheater (4), the steam superheater (4) and
Inlet outlet heat exchanger (1) connection, for being preheated to the unstripped gas in inlet outlet heat exchanger (1), the inlet outlet heat exchanger
(1) it is connect with conversion gas useless pot (5).
2. the insulation sulphur-resistant conversion device according to claim 1 reduced investment outlay, it is characterised in that: in the sulphur-resistant conversion
The bottom head of reactor (3) is provided with the low temperature feedstock gas entrance (9) being connected to annular space (6), in the sulfur-tolerant water gas shift
The top end socket of device (3) is provided with the protection gas outlet (10) being connected to annular space (6), in the sulfur-tolerant water gas shift device (3)
It is provided with the first valve (11), is provided on by-pass the second valve (12) on low temperature feedstock gas entrance (9) Trunk Line, second valve
(12) it is provided with minimum limit, first valve (11) and the second valve (12) are in parallel.
3. the insulation sulphur-resistant conversion device according to claim 1 reduced investment outlay, it is characterised in that: the inlet and outlet heat exchange
The low-temperature zone (1a) and high temperature section (1b) of device (1) combine in an equipment or the low-temperature zone (1a) and high temperature section (1b)
Respectively two independent equipment.
4. the insulation sulphur-resistant conversion device according to claim 1 reduced investment outlay, it is characterised in that: the inlet and outlet heat exchange
The bypass of the raw material gas inlet of device (1) is connect with the import of detoxification slot (2), and the temperature of implication is entered for adjusting detoxification slot (2).
5. the insulation sulphur-resistant conversion device according to claim 1 reduced investment outlay, it is characterised in that: the detoxification slot (2)
The bypass of outlet is connect with the bypass on the protection gas of sulfur-tolerant water gas shift device (3) top end socket outlet (10) pipeline, for adjusting
The annular space for saving sulfur-tolerant water gas shift device (3) protects gas tolerance.
6. the insulation sulphur-resistant conversion device as claimed in any of claims 1 to 5 reduced investment outlay, it is characterised in that:
It is provided with gas distributor (13) at the top of the internal protection cylinder (18), the gas distributor (13) enters with high temperature feedstock gas
Mouth (7) connection, is provided with catalyst bed (14) in the internal protection cylinder (18), the gas after reaction enters gas collection
Device (15), the gas collector (15) are connected to high temperature shift gas outlet (8).
7. the insulation sulphur-resistant conversion device according to claim 6 reduced investment outlay, it is characterised in that: in the internal protection
It is provided with axial catalyst bed (14a) in cylinder (18), sulphur-resistant conversion is filled in the axial catalyst bed (14a) and urges
Agent is filled with flame-proof sphere (16) in axial catalyst bed (14a) upper and lower end, gas collector (15) setting
In internal protection cylinder (18) bottom.
8. the insulation sulphur-resistant conversion device according to claim 6 reduced investment outlay, it is characterised in that: in the internal protection
It is provided with radial catalyst bed (14b) in cylinder (18), sulphur-resistant conversion is filled in the radial catalyst bed (14b) and urges
Agent, the gas that connection corresponding with radial catalyst bed (14b) is provided among the radial catalyst bed (14b) are received
Storage (15), gas collector (15) upper end are enclosed construction, and lower end is connected to high temperature shift gas outlet (8).
9. the insulation sulphur-resistant conversion device according to claim 8 reduced investment outlay, it is characterised in that: in the radial catalysis
Using segmentation loading catalyst in agent bed (14b), upper section loads protective agent or inactive catalyst, and lower section filling is resistance to
Sulfur change catalyst is filled with flame-proof sphere (16) in described radial lower end catalyst bed (14b).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821174435.8U CN208716844U (en) | 2018-07-24 | 2018-07-24 | A kind of insulation sulphur-resistant conversion device reduced investment outlay |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821174435.8U CN208716844U (en) | 2018-07-24 | 2018-07-24 | A kind of insulation sulphur-resistant conversion device reduced investment outlay |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN208716844U true CN208716844U (en) | 2019-04-09 |
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ID=65974797
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201821174435.8U Active CN208716844U (en) | 2018-07-24 | 2018-07-24 | A kind of insulation sulphur-resistant conversion device reduced investment outlay |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN208716844U (en) |
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2018
- 2018-07-24 CN CN201821174435.8U patent/CN208716844U/en active Active
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