CN203635023U - Methanol conversion and synthesis compression section system with plate heat exchangers - Google Patents
Methanol conversion and synthesis compression section system with plate heat exchangers Download PDFInfo
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- CN203635023U CN203635023U CN201320757816.XU CN201320757816U CN203635023U CN 203635023 U CN203635023 U CN 203635023U CN 201320757816 U CN201320757816 U CN 201320757816U CN 203635023 U CN203635023 U CN 203635023U
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Abstract
The utility model discloses a methanol conversion and synthesis compression section system with plate heat exchangers, and belongs to the technical field of methanol synthesis. Shell layer inlets of a first plate heat exchanger, a second plate heat exchanger and an inter-synthesis stage plate heat exchanger are connected with a circulating water supply pipe, and shell layer outlets of the first plate heat exchanger, the second plate heat exchanger and the inter-synthesis stage plate heat exchanger are connected with a circulating water return pipe, wherein a tube layer inlet of the first plate heat exchanger is connected with a desalted preheater; a tube layer inlet of the second plate heat exchanger is connected with a tube layer outlet of the first plate heat exchanger, and a tube layer outlet of the second plate heat exchanger is connected with a converted gas-liquid separator; a tube layer inlet of the inter-synthesis stage plate heat exchanger is connected with a synthesis compressor, and a tube layer outlet of the inter-synthesis stage plate heat exchanger is connected with an inter-synthesis stage gas-liquid separator. According to the system, U-shaped tube type carbon steel heat exchangers are replaced by the fixed tube and plate type stainless steel heat exchangers with large heat transfer areas, tubes are easy to clean, and tube bundles are made from a stainless steel material, so that the inner leakage and corrosion rate is lowered, parking accidents can be effectively reduced, and the system can stably run for a long time.
Description
Technical field
The utility model relates to a kind of methanol conversion and synthetic compression section system that plate type heat exchanger is housed, and belongs to methyl alcohol synthesis technical field.
Background technology
At present, for the synthetic factory of some methyl alcohol, because be subject to the impact of water quality, very large to transforming the corrosion of the first water cooler, the second water cooler and synthetic compression interstage cooler.But general former design water cooler is all U-shaped water cooler, carbon steel material, the tube bank of water cooler is fracture and wearing and tearing often, and in pipe, U crook medium is easily revealed, and causes production line to stop, and brings very large economic loss to production.Therefore be necessary U-shaped cooler (material carbon steel) between the first U-shaped water cooler, the second U-shaped water cooler and synthetic compression stage to be replaced with fixed tube sheet type stainless steel (S304) water cooler, this process operation is simple, Equipment Foundations are constant, and equipment nozzle orientation is constant, and equipment heat exchange area increases.
Summary of the invention
The purpose of this utility model is to overcome the defect of above-mentioned technology, a kind of methanol conversion and synthetic compression section system that plate type heat exchanger is housed is provided, to can reduce the parking accident causing because of leakage of water cooler, assurance system is macrocyclic, operation stably.
The utility model solves the technical scheme that its technical problem adopts: a kind of methanol conversion and synthetic compression section system that plate type heat exchanger is housed, comprises the first plate type heat exchanger, the second plate type heat exchanger, synthetic inter-stage plate type heat exchanger, return main, upper supply mains.Wherein, the shell import of the first plate type heat exchanger, the second plate type heat exchanger and synthetic inter-stage plate type heat exchanger is all connected with circulation upper hose, shell outlet all with loop back water pipe and be connected; Upper hose is connected with supply mains on recirculated water; Return pipe is connected with recirculated water return main; The first plate-type heat-exchange organ pipe layer import is connected with desalted water preheater, and the second plate-type heat-exchange organ pipe layer import is connected with the first plate-type heat-exchange organ pipe layer outlet, and the second plate-type heat-exchange organ pipe layer outlet is connected with reformed gas liquid/gas separator; Synthetic inter-stage plate-type heat-exchange organ pipe layer import is connected with synthetic compressor, and the outlet of pipe layer is connected with synthetic inter-stage gas-liquid separator.
Further, the first plate type heat exchanger, the second plate type heat exchanger, synthetic inter-stage plate type heat exchanger are fixed tube sheet type stainless steel water cooler.
Further, described the first plate type heat exchanger, the second plate type heat exchanger and synthetic inter-stage plate-type heat-exchange organ pipe layer are all provided with pipe layer drain and pipe layer heat exchanger leakage fluid dram; Each heat exchanger shell is provided with shell drain and shell heat exchanger leakage fluid dram.
In the utility model, the first plate type heat exchanger, the second plate type heat exchanger, inter-stage plate type heat exchanger are all that pipe layer is walked process gas, and shell is walked recirculated water.The oven gas of conversion section further reclaims after reaction heat through desalted water preheater, carry out heat exchange by recirculated cooling water and oven gas counter current contacting, after the first plate type heat exchanger and the second plate type heat exchanger are cooled to 40 ℃, be sent to conversion section gas-liquid separator and carry out separating technology condensate liquid.Synthesis gas pressure 3.5MPa after one section of compression of synthetic compressor, gas temperature rises to 100 ℃ of left and right, after synthetic compressor inter-stage cooler is cooled to 40 ℃, enter synthesis gas liquid/gas separator and carry out gas-liquid separation, gas after separation enters synthetic compressor circulation section again and mixes from the synthetic circulating air of methyl alcohol, be compressed to 5.9MPa, it is synthetic that compressor outlet synthesis gas is sent to methyl alcohol.The recirculated water that three water cooler shell sides are walked carrys out supply mains on self-circulating water, and backwater enters recirculated water return main.
The beneficial effects of the utility model are: the water cooler of U-shaped tubular type carbon steel material is replaced by fixed tube sheet type stainless steel (S304) water cooler by this system, this heat exchanger heat transfer area is large, pipe is easy to clean, and tube bank is owing to being stainless steel, so leak in being difficult for and corrosion.Can effectively reduce the parking accident causing because of leakage of water cooler, assurance system is macrocyclic, operation stably.
Accompanying drawing explanation
Below in conjunction with the drawings and specific embodiments, the utility model is further illustrated.
Fig. 1 is the structural representation of the utility model embodiment the first plate type heat exchanger and the second plate type heat exchanger.
Fig. 2 is the structural representation of the synthetic inter-stage plate type heat exchanger of the utility model embodiment.
Number in the figure:
1, shell drain; 2, desalted water preheater; 3, the first plate type heat exchanger; 4, the second plate type heat exchanger; 5, reformed gas liquid/gas separator; 6, synthetic compressor; 7, synthetic inter-stage plate type heat exchanger; 8, synthetic inter-stage gas-liquid separator; 9, synthetic circulation upper hose; 10, the synthetic water pipe that loops back; 11, supply mains in conversion cycles; 12, conversion cycles return main; 13, shell heat exchanger leakage fluid dram; 14, pipe layer drain; 15, pipe layer heat exchanger leakage fluid dram.
The specific embodiment
The methanol conversion that plate type heat exchanger is housed as shown in Figure 1 and Figure 2 and synthetic compression section system, comprise the first plate type heat exchanger 3, the second plate type heat exchanger 4, synthetic inter-stage plate type heat exchanger 7.Wherein, the shell import of the first plate type heat exchanger 3, the second plate type heat exchanger 4 and synthetic inter-stage plate type heat exchanger 7 is all connected with circulation upper hose, shell outlet all with loop back water pipe and be connected; Upper hose is connected with supply mains 11 in synthetic circulation upper hose 9, conversion cycles; Return pipe with synthetic loop back water pipe 10, conversion cycles return main 12 is connected; The first plate type heat exchanger 3 pipe layer import are connected with desalted water preheater 2, and the second plate type heat exchanger 4 pipe layer import are connected with the first plate type heat exchanger 3 pipe layer outlet, and the second plate-type heat-exchange organ pipe 4 pipe layer outlet are connected with reformed gas liquid/gas separator 5; Synthetic inter-stage plate type heat exchanger 7 pipe layer import are connected with synthetic compressor 6, and the outlet of pipe layer is connected with synthetic inter-stage gas-liquid separator 8.
Described the first plate type heat exchanger 3, the second plate type heat exchanger 4 and synthetic inter-stage plate type heat exchanger 7 pipe layers are all provided with pipe layer drain 14 and pipe layer heat exchanger leakage fluid dram 15; Each heat exchanger shell is provided with shell drain 1 and shell heat exchanger leakage fluid dram 13.The on-condensible gas that pipe layer pipe layer drain 14 above discharges in Tube Sheet of Heat Exchanger layer, the condensate liquid that pipe layer heat exchanger leakage fluid dram 15 discharges in Tube Sheet of Heat Exchanger layer.Pipe layer shell drain 1 above discharges the on-condensible gas in heat exchanger shell, and shell heat exchanger leakage fluid dram 13 discharges hydrops.
In the specific implementation, the first plate type heat exchanger 3, the second plate type heat exchanger 4, synthetic inter-stage plate type heat exchanger 7 are all that pipe layer is walked process gas to the utility model, and shell is walked recirculated water.The first plate type heat exchanger 3 and the second plate type heat exchanger 4 media are the reformed gas from conversion section desalted water preheater 2, through with recirculated water heat exchange after, remove respectively the second plate type heat exchanger 4 and reformed gas liquid/gas separator 5.Between the synthesis gas ECDC staged after 6 one sections of compressions of synthetic compressor, plate type heat exchanger 7 enters synthetic inter-stage gas-liquid separator 8 after cooling and carries out gas-liquid separation, enters synthetic compressor 6 again and carry out gas compression pressure-raising after gas-liquid separation.
Claims (3)
1. one kind is equipped with methanol conversion and the synthetic compression section system of plate type heat exchanger, comprise the first plate type heat exchanger, the second plate type heat exchanger, synthetic inter-stage plate type heat exchanger, it is characterized in that: the shell import of described the first plate type heat exchanger, the second plate type heat exchanger and synthetic inter-stage plate type heat exchanger is all connected with circulation upper hose, shell outlet all with loop back water pipe and be connected; The first plate-type heat-exchange organ pipe layer import is connected with desalted water preheater, and the second plate-type heat-exchange organ pipe layer import is connected with the first plate-type heat-exchange organ pipe layer outlet, and the second plate-type heat-exchange organ pipe layer outlet is connected with reformed gas liquid/gas separator; Synthetic inter-stage plate-type heat-exchange organ pipe layer import is connected with synthetic compressor, and the outlet of pipe layer is connected with synthetic inter-stage gas-liquid separator.
2. methanol conversion and the synthetic compression section system that plate type heat exchanger is housed according to claim 1, is characterized in that: described the first plate type heat exchanger, the second plate type heat exchanger, synthetic inter-stage plate type heat exchanger are fixed tube sheet type stainless steel water cooler.
3. methanol conversion and the synthetic compression section system that plate type heat exchanger is housed according to claim 1, is characterized in that: described the first plate type heat exchanger, the second plate type heat exchanger and synthetic inter-stage plate-type heat-exchange organ pipe layer are all provided with pipe layer drain and pipe layer heat exchanger leakage fluid dram; Each heat exchanger shell is provided with shell drain and shell heat exchanger leakage fluid dram.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320757816.XU CN203635023U (en) | 2013-11-27 | 2013-11-27 | Methanol conversion and synthesis compression section system with plate heat exchangers |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320757816.XU CN203635023U (en) | 2013-11-27 | 2013-11-27 | Methanol conversion and synthesis compression section system with plate heat exchangers |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203635023U true CN203635023U (en) | 2014-06-11 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201320757816.XU Withdrawn - After Issue CN203635023U (en) | 2013-11-27 | 2013-11-27 | Methanol conversion and synthesis compression section system with plate heat exchangers |
Country Status (1)
| Country | Link |
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| CN (1) | CN203635023U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104667696A (en) * | 2013-11-27 | 2015-06-03 | 七台河宝泰隆甲醇有限公司 | Methanol conversion and synthesis compression working section system with plate type heat exchangers |
-
2013
- 2013-11-27 CN CN201320757816.XU patent/CN203635023U/en not_active Withdrawn - After Issue
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104667696A (en) * | 2013-11-27 | 2015-06-03 | 七台河宝泰隆甲醇有限公司 | Methanol conversion and synthesis compression working section system with plate type heat exchangers |
| CN104667696B (en) * | 2013-11-27 | 2017-09-29 | 七台河宝泰隆甲醇有限公司 | Methanol conversion and synthesis compression section system equipped with plate type heat exchanger |
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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: 20140611 Effective date of abandoning: 20170929 |
|
| AV01 | Patent right actively abandoned |