CN203549786U - Recycling and reusing device of rectification steam condensate - Google Patents
Recycling and reusing device of rectification steam condensate Download PDFInfo
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- CN203549786U CN203549786U CN201320749723.2U CN201320749723U CN203549786U CN 203549786 U CN203549786 U CN 203549786U CN 201320749723 U CN201320749723 U CN 201320749723U CN 203549786 U CN203549786 U CN 203549786U
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Abstract
The utility model discloses a recycling and reusing device of rectification steam condensate. According to the device, steam condensate header pipes and an oxygen pipe are arranged in a heat-preserving layer of the device, the gas inlet end of each steam condensate header pipe is connected with a steam condensate pipe of byproducts of a rectification section, the steam condensate of the steam condensate pipe of the byproducts of the rectification section respectively comes from a pre-rectifying tower bottom reboiler and a pressurizing rectifying tower bottom reboiler, and the gas outlet end of each steam condensate header pipe is connected with the gas inlet end of a deoxidization box; the gas inlet end of the oxygen pipe is connected with the gas outlet end of an air separation oxygen compressor; the gas outlet end of the oxygen pipe is connected with the gas inlet end of an oxygen burning nozzle of a reforming furnace. According to the device, the oxygen pipe is bound by the steam condensate header pipes, oxygen and steam condensate backflow to make contact with each other, the steam condensate enters the deoxidization box, the temperature of the steam condensate is lowered after heat exchange, and therefore fluctuation of the temperature of the deoxidization box caused by the steam condensate is small, cost is saved, and working efficiency is improved.
Description
Technical field
The utility model relates to a kind of rectifying steam condensate recycling device.
Background technology
Methanol rectification is according at the same temperature, and the volatility difference of different component in same liquid mixture, through repeatedly part vaporization and repeatedly partial condensation, finally obtains purer component, realizes the process of mixture lock out operation.Rectifying workshop section is provided with thermosyphon reboiler and realizes the vaporization of component at the bottom of each rectifying tower.The main thermal source of pre-rectifying tower and compression rectification tower tower bottom reboiler is the low-pressure steam of 0.8MPa, and after steam and materials at bottom of tower heat exchange, the temperature of steam condensate is 140 ℃ of left and right.
To steam condensate, deoxygenation case is directly discharged or entered in most of enterprise.The steam condensate of 140 ℃ produces a large amount of steam after entering deoxygenation case.With a large amount of heats, run off simultaneously, also strengthened the addition of desalted water, thereby improved production cost.Moreover, steam condensate enters deoxygenation case, will cause deoxygenation case temperature to raise, and easily makes the boiler feed pump generation cavitation that is connected with deoxygenation case, and impact transforms, water on synthetic drum, also can affect the deaerating effect of deoxygenation case simultaneously.Based on saving the energy, reduce costs just, reduce the consideration on the impact of deoxygenation case, need to take suitable mode to carry out recycling for rectifying steam condensate.
Summary of the invention
The utility model is to solve the problem that the steam condensate heat of by-product in existing methanol rectification workshop section runs off, and a kind of rectifying steam condensate recycling device is provided.
The utility model solves the technical scheme that its technical problem adopts: rectifying steam condensate recycling device is provided with steam condensate house steward and oxygen channel in heat-insulation layer, steam condensate house steward's inlet end is connected with the steam condensate pipe of rectifying workshop section by-product, its steam condensate house steward is connected with compression rectification tower tower bottom reboiler steam condensate outlet side with pre-rectifying tower tower bottom reboiler steam condensate outlet side respectively, and steam condensate house steward outlet side is connected with deoxygenation case inlet end; Oxygen channel inlet end is connected with an empty point oxygen compressor outlet side; Oxygen channel outlet side is connected with reburner oxygen burner inlet end.This utility model can be carried out heat recovery recycling by the steam condensate of 140 ℃ of rectifying workshop section by-product.Bundle oxygen channel with many steam condensate house stewards, oxygen and steam condensate counter current contacting, the steam condensate being cooled enters deoxygenation case.
The utility model be from the 0.8MPa low-pressure steam of outer tube by hydrocone type reboiler at the bottom of tower respectively to heating at the bottom of pre-rectifying tower and compression rectification tower tower, the light component vaporization of two tower bottoms, the simultaneously steam condensate of 140 ℃ of by-products.The steam condensate of two towers enters steam condensate house steward.In heat-insulation layer, with many rectifying steam condensate house stewards, bundle oxygen channel.Steam condensate and oxygen counter current contacting that rectifying comes, steam-condensation liquid temp drops to 95 ℃ of left and right by 140 ℃ of original left and right, and oxygen temperature is heated to 100 ℃ of left and right by original 65 ℃, fully recycles thermal source.After steam condensate and oxygen heat exchange, the steam-condensation liquid temp that enters deoxygenation case reduces, and the temperature of deoxygenation case reaches normal process index, pressure 0.002MPa, and temperature is 105 ℃, liquid level is controlled at 60%-80%.And enter into the oxygen of reburner oxygen burner, and reach the activation point of reaction, the fully reaction in reburner of oxygen and oven gas, thus improved the transformation efficiency of oxygen in reburner.
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.
Number in the figure:
1, heat-insulation layer; 2, steam condensate house steward; 3, empty point oxygen compressor; 4, deoxygenation case; 5, oxygen channel;
6, reburner oxygen burner; 7, pre-rectifying tower reboiler; 8, compression rectification tower reboiler; ; 9, pre-rectifying tower; 10, compression rectification tower; 11, valve body.
The specific embodiment
Example 1
From the low-pressure steam that transforms drum and synthetic drum, enter tower bottom reboiler by carrying out heat exchange with pre-rectifying tower and compression rectification tower materials at bottom of tower respectively, light component in two tower is vaporized according to the difference of volatility, and the steam condensate being simultaneously condensed in tower bottom reboiler is directly delivered to outer tube according to former design.
The utility model is that the low-pressure steam condensate liquid house steward 2 that two rectifying tower bottom reboilers are come bundlees oxygen channel 5, condensate liquid and oxygen counter current contacting are carried out heat exchange, not only oxygen temperature is heated to 100 ℃ by original 65 ℃, and reduced steam condensate and returned the temperature of deoxygenation case 4, avoided deoxygenation case 4 over-temp and over-pressures, saved production cost.
Example 2
What present embodiment was different from example 1 is that two tower bottom reboiler steam condensate outlets are connected on steam condensate house steward 2, valve body 11 of the upper installation of house steward.Bundle oxygen channel with many steam condensate house stewards 2, give oxygen heating, the condensate liquid after being cooled enters deoxygenation case 4, and a large amount of desalted waters are saved in condensate circulation utilization.
Example 3
As shown in Figure 1, in heat-insulation layer 1, be provided with steam condensate house steward 2 and oxygen channel 5, steam condensate house steward's 2 inlet ends are connected with compression rectification tower reboiler 8 outlet sides with pre-rectifying tower reboiler 7 respectively, and steam condensate house steward 2 outlet sides are connected with deoxygenation case 4 inlet ends; Oxygen channel 5 inlet ends are connected with an empty point oxygen compressor 3; Oxygen channel 5 outlet sides are connected with reburner oxygen burner 6; Steam condensate house steward 2 is close to oxygen channel 5, and is provided with many.
The utility model in the specific implementation, pre-rectifying tower reboiler 7 and compression rectification tower reboiler 8 carry out heat exchange respectively at pre-rectifying tower 9 and compression rectification tower 10 materials at bottom of towers, the low-pressure steam condensate liquid of outlet side enters from steam-condensation house steward 2 inlet end by valve body 11, the steam condensate that rectifying comes and oxygen channel 5 divide oxygen compressor 3 oxygen counter current contacting from sky, steam-condensation liquid temp drops to 95 ℃ of left and right by 140 ℃ of left and right, and the temperature of oxygen is heated to 100 ℃ of left and right.After steam condensate and oxygen heat exchange, the temperature that enters deoxygenation case 4 reduces, and the temperature of deoxygenation case 4 reaches normal process index.And enter into the oxygen of reburner burner 6, and reach the temperature of throwing oxygen, shorten the oxygen temperature raising time, thereby improved transformation efficiency.
Claims (3)
1. a rectifying steam condensate recycling device, comprise heat-insulation layer, it is characterized in that: in heat-insulation layer (1), be provided with steam condensate house steward (2) and oxygen channel (5), described steam condensate house steward (2) inlet end is connected with compression rectification tower reboiler (8) steam condensate outlet side with pre-rectifying tower reboiler (7) steam condensate outlet side respectively, and described steam condensate house steward (2) outlet side is connected with deoxygenation case (4) inlet end.
2. rectifying steam condensate recycling device according to claim 1, is characterized in that: described oxygen channel (5) inlet end is connected with an empty point oxygen compressor (3); Described oxygen channel (5) outlet side is connected with reburner oxygen burner (6).
3. rectifying steam condensate recycling device according to claim 1, is characterized in that: steam condensate house steward (2) is close to oxygen channel (5), and is provided with many.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320749723.2U CN203549786U (en) | 2013-11-25 | 2013-11-25 | Recycling and reusing device of rectification steam condensate |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320749723.2U CN203549786U (en) | 2013-11-25 | 2013-11-25 | Recycling and reusing device of rectification steam condensate |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203549786U true CN203549786U (en) | 2014-04-16 |
Family
ID=50467896
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201320749723.2U Expired - Fee Related CN203549786U (en) | 2013-11-25 | 2013-11-25 | Recycling and reusing device of rectification steam condensate |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203549786U (en) |
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2013
- 2013-11-25 CN CN201320749723.2U patent/CN203549786U/en not_active Expired - Fee Related
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20140416 Termination date: 20161125 |