CN201350404Y - High pressure tubular full-condensation reactor - Google Patents
High pressure tubular full-condensation reactor Download PDFInfo
- Publication number
- CN201350404Y CN201350404Y CNU2009200833113U CN200920083311U CN201350404Y CN 201350404 Y CN201350404 Y CN 201350404Y CN U2009200833113 U CNU2009200833113 U CN U2009200833113U CN 200920083311 U CN200920083311 U CN 200920083311U CN 201350404 Y CN201350404 Y CN 201350404Y
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- condenser
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
- Y02P20/00—Technologies relating to chemical industry
- Y02P20/141—Feedstock
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Abstract
The utility model relates to a high pressure tubular full-condensation reactor which solves the problems that the process material in the high pressure condenser has short staying time in pipe, the byproduct steam generated by shell side has lower pressure and the equipment investment is high. The technical proposal includes that a heat exchange tube is mounted on the condenser, a gas inlet, a methylamine liquid inlet and a steam condensate inlet are arranged on the lower part of the condenser, the upper part of the condenser is provided with a steam condensate outlet, the gas inlet and the methylamine liquid inlet are communicated with the pipe side of the condenser, the steam condensate inlet and the steam condensate outlet are communicated with the shell side of the condenser; the upper end of the condenser is also provided with a reactor communicated with the pipe side of the condenser, the top part of the reactor is provided with a gas outlet, the reaction liquid outlet is connected with the lower end of a downspout in the reactor. The high pressure tubular full-condensation reactor has simple structure and ensures material to move in the pipe from bottom to top and have long staying time so that the pressure of byproduct steam is improved, investment is saved and the energy consumption is reduced.
Description
Technical field
The utility model relates to the high pressure condenser in a kind of urea production process, specifically a kind of high-voltage lamp type full condensation reactor.
Background technology
High pressure condenser is as CO
2A visual plant in the gas formulation urea technique high pressure loop, the formula structure falls in the main film that adopts of tradition, and process stream (being made of gas, liquid) is walked to manage side by condenser and is from up to down moved, and steam condensate is walked shell-side.The high-pressure process material is walked tube side, because gas, liquid are descending, liquid forms film on tube wall, gas is walked in pipe, makes that the time of staying of process stream in pipe is very short, and temperature of charge is about 167 ℃, the steam pressure of shell-side by-product is lower, is generally 0.44MP (A), is difficult to reasonable utilization.Because time of staying weak point and the reactionless district of material in pipe, therefore, no urea generates in high pressure condenser.
External produce that a kind of pool condenser, heat exchanger tube are arranged is the U cylinder structure, equipment is horizontal, and the high-pressure process material is walked shell side, has correspondingly increased the time that process stream stops in condenser, and the steam pressure of pipe side by-product can reach 0.5MP (A).But it is very high that this equipment manufacturing technology requires, and needs to use the internal bore welding technology, at present domesticly also can't make, and needs import, the equipment investment height.This equipment tube sheet inboard (process stream side) is not easy as going wrong to find in addition, has bigger technical risk.In order to guarantee heat-transfer effect, the steam condensate side needs the circulating pump forced circulation in addition, thereby has also increased power consumption.
Summary of the invention
The purpose of this utility model is in order to solve the problems of the technologies described above, and provides that a kind of technology is simple, equipment investment is low, byproduct steam pressure height, material are long at intraductal retention time, can generate the high-voltage lamp type full condensation reactor that aminoquinoxaline can be translated into urea simultaneously again.
Technical scheme is: comprise the condenser that heat exchanger tube is housed, described condenser is provided with gas feed, the liquid import of first ammonium and steam condensate import, top is provided with the steam condensate outlet, described gas feed and the import of first ammonium liquid communicate with the pipe side of condenser, and steam condensate import and steam condensate outlet communicate with the condenser shell-side; Described upper end of condenser also is provided with the reactor that communicates with the condenser tube side, and described reactor head is provided with gas vent, and the interior downspout lower end of reactant liquor outlet and reactor is connected.
Also be provided with at least one floor height in the described reactor under the liquid layer and imitate tower tray.
Described gas, liquid-inlet also communicate with the condenser tube side through gas and liquid distribution trough.
The utility model is a vertical equipment, reactor is communicated with the heat exchanger tube of condenser, process stream walks to manage side (being heat exchanger tube) from the bottom to top in condenser, steam condensate is walked shell-side, because the gravity effect, be full of liquid in the heat exchanger tube, in the reactor also major part liquid is housed, gas is up by condenser bottom, bubbling in heat exchanger tube and reactor, increased the time of staying of process stream greatly, and also can absorb when going upward to reactor and react with the abundant condensation of liquid at heat exchanger tube.At last, gas is discharged by the gas vent of reactor head and is entered subsequent processing, and the downspout of reactant liquor in reactor discharged by the reactant liquor outlet and entered subsequent processing.For gas-liquid is fully contacted, in reactor, be provided with high-efficient tower plate, described high-efficient tower plate can adopt the tower tray of porous plate, hump plate or other form; Above condenser gas, liquid-inlet, also be provided with gas and liquid distribution trough and enter hot replace tubes so that gas and liquid evenly distribute.
The beneficial effects of the utility model are:
1, to compare with traditional falling film type high pressure condenser, the utility model pipe side material moves from bottom to top, in condenser the time of staying grow, the temperature height, about 180 ℃, therefore, it has bigger heat transfer temperature difference, thereby makes the heat exchange area of design can reduce more than 50%, reduces investment greatly;
2, by setting up reactor, prolonging the time of staying of material in equipment, make process stream fully condensation absorption and reaction in the utility model to generate carbamic acid and certain amount of urea, can shunt the load of urea synthesizer.
3, this structural design can improve the pressure of byproduct steam, and the pressure of steam can reach 0.5MPa (a), because the steam grade improves, helps the reasonable utilization of steam.In addition, steam condensate side (being shell-side) is a Natural Circulation, does not need circulating pump, reduces investment outlay, and has also reduced power consumption.
4, the volume of reactor can design according to different requirements in the utility model, be specially adapted to when carrying out the capacity expansion revamping need the increase of the synthetic tower in urea technique equipment volume, only needn't synthetic tower be transformed with the volume that increases the utility model reactor, reduce difficulty of construction, further saved improvement cost.The utility model not only can be used for CO
2Gas formulation urea technique also can solve other process units (mentioning improvement total recycle process technology as water solution total cycling method, ammonia) when carrying out the high pressure loop transformation, the problem that original urea synthesizer can not utilize or be difficult to arrange;
5, the condenser tube side of high-voltage lamp type full condensation reactor bottom is a high pressure, pressure is generally 13-17MPa (A), and shell-side is a low pressure, and pressure is generally 0.4-0.9MPa (A), therefore device structure is simple, do not need to use special internal bore welding technology, manufacturing technology requires lower, and technical risk is little, low cost of manufacture, domestic technique can be produced fully.
Description of drawings
Fig. 1 high-voltage lamp type full condensation reactor structural representation.
Wherein: 1-condenser, 2-reactor, 3-heat exchanger tube, 4-gas feed, the import of 5-first ammonium liquid, 6-gas and liquid distribution trough, the import of 7-steam condensate, the outlet of 8-steam condensate, 9-downspout, 10-high-efficient tower plate, the outlet of 11-reactant liquor, 12-gas vent.
The specific embodiment
Below in conjunction with accompanying drawing the utility model is further explained explanation:
With reference to Fig. 1, the utility model is a vertical equipment, comprise the condenser 1 that many heat exchanger tubes 3 are housed and the reactor 2 of upper end thereof, described condenser 1 bottom is provided with gas feed 4, the first ammonium liquid import 5 that is communicated with heat exchanger tube 3 (promptly managing side), and the steam condensate import 7 that is communicated with shell-side, described gas feed 4, the import 5 of first ammonium liquid are communicated with heat exchanger tube 3 through gas and liquid distribution trough 6.Condenser 1 top is provided with the steam condensate outlet 8 that is communicated with shell-side; Described reactor 2 is communicated with the pipe side of condenser 1, is provided with multi-layer efficient tower tray 10 and downspout 9 in the reactor 2, and gas vent 12 is established at its top, the reactant liquor outlet 11 on the downspout 9 lower end coupled reaction devices 2.
Operation principle:
With CO
2Gas formulation urea technique is an example, the gas stripping gas (CO that is come out by the high pressure gas stripper
2, NH
3Gas) and the first ammonium liquid that comes out of high pressure scrubber enter condenser 1 by the gas feed 4 and the first ammonium liquid import 5 of bottom respectively, enter reactor 2 and continue up along pipe side bubbling by gas and liquid distribution trough 6 backs by the high-efficient tower plate 10 in the reactor 2.Gas stripping gas (CO
2, NH
3Gas) in pipe, fully contact absorption with first ammonium liquid, and further condensation absorbs the reactant liquor that generation contains aminoquinoxaline and urea in reactor 2, reacted gas is discharged by the gas vent 12 at reactor 2 tops, and reactant liquor is then discharged by reactant liquor outlet 11 through downspout 9.Steam condensate enters the circulation of condenser 1 shell-side by steam condensate import 7, and is discharged by steam condensate outlet 8, to absorb the reaction heat (about 180 ℃ of temperature) of material in the heat exchanger tube 3, by-product 0.45-0.5MPa (A) steam.Described pipe side is a high pressure, and pressure is 13-17MPa (A), and shell-side is a low pressure, and pressure is 0.4-0.9MPa (A).
Claims (3)
1. high-voltage lamp type full condensation reactor, comprise the condenser that heat exchanger tube is housed, it is characterized in that, described condenser is provided with gas feed, the liquid import of first ammonium and steam condensate import, top is provided with the steam condensate outlet, described gas feed and the import of first ammonium liquid communicate with the pipe side of condenser, and steam condensate import and steam condensate outlet communicate with the condenser shell-side; Described cool condenser upper end also is provided with the reactor that communicates with the condenser tube side, and described reactor head is provided with gas vent, and the interior downspout lower end of reactant liquor outlet and reactor is connected.
2, high-voltage lamp type full condensation reactor as claimed in claim 1 is characterized in that: also be provided with at least one floor height in the described reactor under the liquid layer and imitate tower tray.
3, the described high-voltage lamp type full condensation reactor of claim 1 is characterized in that: described gas and liquid-inlet also communicate with the condenser tube side through gas and liquid distribution trough.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2009200833113U CN201350404Y (en) | 2009-01-09 | 2009-01-09 | High pressure tubular full-condensation reactor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2009200833113U CN201350404Y (en) | 2009-01-09 | 2009-01-09 | High pressure tubular full-condensation reactor |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201350404Y true CN201350404Y (en) | 2009-11-25 |
Family
ID=41373792
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNU2009200833113U Expired - Lifetime CN201350404Y (en) | 2009-01-09 | 2009-01-09 | High pressure tubular full-condensation reactor |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201350404Y (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101492398B (en) * | 2009-01-09 | 2012-05-30 | 中国五环工程有限公司 | Urea production process of high-efficiency condensation, low-mounting height CO2 air stripping method and high-voltage lamp type full condensation reactor |
| CN113476880A (en) * | 2017-10-27 | 2021-10-08 | 斯塔米卡邦有限公司 | High pressure carbamate condenser |
-
2009
- 2009-01-09 CN CNU2009200833113U patent/CN201350404Y/en not_active Expired - Lifetime
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101492398B (en) * | 2009-01-09 | 2012-05-30 | 中国五环工程有限公司 | Urea production process of high-efficiency condensation, low-mounting height CO2 air stripping method and high-voltage lamp type full condensation reactor |
| CN113476880A (en) * | 2017-10-27 | 2021-10-08 | 斯塔米卡邦有限公司 | High pressure carbamate condenser |
| US11766627B2 (en) | 2017-10-27 | 2023-09-26 | Stamicarbon B.V. | High pressure carbamate condenser |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| AV01 | Patent right actively abandoned |
Granted publication date: 20091125 Effective date of abandoning: 20090109 |