CN206108962U - Modified sewage strip is purified waste water heat and is utilized system - Google Patents
Modified sewage strip is purified waste water heat and is utilized system Download PDFInfo
- Publication number
- CN206108962U CN206108962U CN201621079701.XU CN201621079701U CN206108962U CN 206108962 U CN206108962 U CN 206108962U CN 201621079701 U CN201621079701 U CN 201621079701U CN 206108962 U CN206108962 U CN 206108962U
- Authority
- CN
- China
- Prior art keywords
- line
- temperature
- purified water
- solvent
- newly
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Active
Links
Abstract
The utility model relates to a modified sewage strip is purified waste water heat and is utilized system, including the feed line that purifies waste water, return return pipe line, newly -increased reboiler, low temperature purify waste water cross -line, governing valve and temperature measurement instrument, with heat output to the solvent regenerating unit of sewage stripper plant, and take measures to prevent the decomposition of the super temperature of MDEA solvent. The utility model discloses can effectively utilize the surplus heat of sewage stripper plant, reduce the cooling water quantity, reduce the steam consumption at the bottom of the solvent regenerator column. Because the temperature at the bottom of the solvent regenerator column of having taken measures the effective control, can guarantee the long period run of solvent regenerator column.
Description
Technical field
This utility model is related to a kind of improved submarine discharge purified water heat utilization system, belongs to field of energy-saving technology.
Background technology
Sewage stripping device is the important corollary apparatus of petrochemical plant, is mainly used in the process of sulfur-containing waste water, also can be claimed
For acidic water stripping device.Sewage stripping device needs to consume substantial amounts of steam in operation, and the input of device heat is more.Tradition
Heat-exchange system be that the raw water of the purified water of Wastewater Stripping Tower bottom of towe and this device exchanges heat, one side heat is not filled
Divide and utilize, another aspect purified water does not reach the chilling temperature of technological requirement, also need consumption cooling water to be cooled down, cause heat
With the dual waste of cooling water.To make full use of submarine discharge purified water heat, it is necessary to carry out heat integration between device, to sewage
The superfluous heat of stripper plant is comprehensively utilized.
The effect of solvent reclamation device is by heating and gas-liquid separation, the H2S absorbed in desolvation and CO2, the work
The extensive industry such as application and oil refining, Coal Chemical Industry, gas chemical industry of skill.It is molten that the solvent that solvent reclamation device is used is generally alcaminess
Liquid, the desulfurization solvent being usually used is MDEA, and chemical name methyl diethanolamine, about 160 DEG C of its decomposition temperature is warm more than this
Degree, MDEA will decompose generation emplastic and stick to pipeline and equipment inner wall, cause solvent loss and pipe-line equipment blocking.Pass
The heat integration technique of system is that the material of heat integration is led to into solvent regeneration tower, as the thermal source of regenerator bottom of towe, but due to thing
Material temperature degree can cause solvent overtemperature to decompose more than 160 DEG C after running a period of time, affect device long-term operation.
The content of the invention
The purpose of this utility model is to provide a kind of improved submarine discharge purified water heat utilization system, by sewage vapour
Carry purified water and lead to solvent regeneration tower recovery waste heat, and take measures to prevent solvent overtemperature from decomposing, realize filling submarine discharge
Put the comprehensive utilization of purified water superfluous heat.
To reach above-mentioned purpose, this utility model is achieved through the following technical solutions：
At least one newly-increased reboiler 10 is installed in the bottom of towe of solvent regeneration tower 8 of solvent reclamation device.The reboiler is used
Exchanged heat between purified water and solvent reclamation bottom of towe MDEA solvent.
Purified water delivery pipe is laid between submarine discharge bottom of towe discharge nozzle line 3 and the newly-increased reboiler 10 of solvent reclamation bottom of towe
Line 11 and purified water return line 12.
Purification waterpipe or other low temperature waterpipes from after heat exchange draws a water at low temperature cross-line 13, is connected to purified water
Feed-line 11.Regulating valve 14 is installed on water at low temperature cross-line 13, the purified water feed-line before newly-increased reboiler is being entered
Temperature measuring instrument 15, and the automatic control loop set up between temperature measuring instrument 15 and regulating valve 14 are installed on 11, according to
Into the purification coolant-temperature gage of newly-increased reboiler 10, the aperture of automatic control and adjustment valve 14, to ensure into newly-increased reboiler 10
Decomposition temperature of the purification coolant-temperature gage less than MDEA solvents.The automatic control loop is considering the situation of the factors such as cost control
Under, hand control valve can be also taken, it is adjusted manually according to the purified water temperature into reboiler, to reach same energy-conservation
Effect.
System is installed when coming into operation, and need to adjust solvent reclamation bottom of towe steam consumption according to technological requirement and purified water goes out before device
Cooling water amount.After the purified water of submarine discharge bottom of towe is exchanged heat with solvent regeneration tower base solvent, alternative solvent regeneration tower
The some vapor of former reboiler, therefore steam flow need to be adjusted according to technological requirement.Due to temperature after purified water heating MDEA solvents
Degree declines, and need to adjust purified water according to technological requirement and go out cooling water flow before device.
The beneficial effects of the utility model are：This utility model can be with the surplus heat of effectively utilizes sewage stripping device
Amount, reduces cooling water amount, reduces the steam consumption of solvent reclamation bottom of towe.Due to the effective control solvent reclamation that takes measures
The temperature of bottom of towe, it is ensured that the long-term operation of solvent regeneration tower.
Description of the drawings
Fig. 1 is transformation and optimization flow chart.Wherein thickened portion is newly-increased flow process after transformation.
Label in figure：1- Wastewater Stripping Towers；2- submarine discharge bottom of towe reboilers；3- submarine discharge bottom of towe discharge nozzle lines；4-
Front heat exchanger；Heat exchanger after 5-；6- pumps；7- purified water export pipelines；8- solvent regeneration towers；9- solvent reclamation bottom of towe is boiled again
Device；10- increases reboiler newly；11- purified water feed-lines；12- purified water return lines；13- water at low temperature cross-lines；14- regulating valves；
15- temperature measuring instruments.
Specific embodiment
Accompanying drawing is combined below by embodiment to be described in further detail technical scheme.
Embodiment 1：Certain sewage from oil refinery stripping purified water heat recovery system.
There are purified water heat surplus in certain sewage from oil refinery stripper plant.According to plant running parameter measurement, can be with
Submarine discharge purified water and solvent regeneration tower are carried out into heat integration, a set of submarine discharge purified water heat recovery system of design-build
System.
As shown in figure 1, thin thread part is divided into original technological process.The bottom of towe of Wastewater Stripping Tower 1 is provided with reboiler 2, purified water from
Bottom of towe discharging pipeline 3 goes out tower, the charging sewage heat change of front heat exchanger 4 and Wastewater Stripping Tower 1 is first passed through, afterwards by rear heat exchanger 5
With cooling water heat exchange lower the temperature, most after Jing pump 6 pressurize after by the carrying device of purified water export pipeline 7.The bottom of towe of solvent regeneration tower 8 sets
There is reboiler 9.Solvent regeneration tower 8, at a distance of relatively near, possesses heat integration condition with Wastewater Stripping Tower 1.
According to device present situation, by following conceptual design purified water heat recovery system is implemented.As shown in figure 1, thickened portion
To increase flow process after transformation newly.
(1) in the newly-increased reboiler 10 of the bottom of towe of the solvent regeneration tower 8, the newly-increased reboiler 10 is used for purified water and solvent
Exchanged heat between the bottom of towe MDEA solvent of regenerator 8；
(2) discharge in the bottom of towe of Wastewater Stripping Tower 1 and laid only between pipeline 3 and the newly-increased reboiler 10 of the bottom of towe of solvent regeneration tower 8
Change water feed-line 11 and return line 12, to convey and return thermal material.The purified water of the bottom of towe of Wastewater Stripping Tower 1 is caused molten
The bottom of towe of agent regenerator 8 increases reboiler 10 newly, and heat exchange after-purification water returns to follow-up heat exchange process；
(3) increase between newly-increased purified water feed-line 11 and purified water export pipeline 7 a low temperature purification water across
Line 13, arranges regulating valve 14 on low temperature purification water cross-line 13, on newly-increased purified water feed-line 11 temperature measuring set is arranged
Table 15, and the automatic control loop set up between temperature measuring instrument 15 and regulating valve 14, according to entering reboiler 10 is increased newly
Purification coolant-temperature gage, the aperture of automatic control and adjustment valve 14, to ensure that it is molten that the purification coolant-temperature gage into newly-increased reboiler 10 is less than
The decomposition temperature of agent.
After above-mentioned purified water heat recovery system is built up, the steam consumption of solvent regeneration tower 8 reduce before relatively building up 3.8 tons/
Hour, factory's steam cost is 130 yuan/ton, year run time 8400 hours, energy-saving benefit is up to 4,150,000 yuan/year.Can subtract simultaneously
Few CO2 discharges 6400 tons/year.With good economic benefit and social benefit.
Claims (1)
1. a kind of improved submarine discharge purified water heat utilization system, including purified water feed-line, return line, it is newly-increased again
Boiling device, low temperature purification water cross-line, regulating valve and temperature measuring instrument, it is characterised in that：In the solvent reclamation of solvent reclamation device
Tower (8) bottom of towe installs at least one newly-increased reboiler (10), in Wastewater Stripping Tower bottom of towe discharging pipeline (3) and solvent regeneration tower tower
Bottom increases newly and lay between reboiler (10) purified water feed-line (11) and purified water return line (12), the purification from after heat exchange
Waterpipe or other low temperature waterpipes draw a water at low temperature cross-line (13), purified water feed-line (11) are connected to, in low temperature
Regulating valve (14) is installed on water cross-line (13), temperature is installed on the purified water feed-line (11) entered before newly-increased reboiler
Measuring instrumentss (15), and the automatic control loop set up between temperature measuring instrument (15) and regulating valve (14) are new according to entering
Increase the purification coolant-temperature gage of reboiler (10), the aperture of automatic control and adjustment valve (14), to ensure into newly-increased reboiler (10)
Decomposition temperature of the purification coolant-temperature gage less than MDEA solvents.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201621079701.XU CN206108962U (en) | 2016-09-26 | 2016-09-26 | Modified sewage strip is purified waste water heat and is utilized system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201621079701.XU CN206108962U (en) | 2016-09-26 | 2016-09-26 | Modified sewage strip is purified waste water heat and is utilized system |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN206108962U true CN206108962U (en) | 2017-04-19 |
Family
ID=58520864
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201621079701.XU Active CN206108962U (en) | 2016-09-26 | 2016-09-26 | Modified sewage strip is purified waste water heat and is utilized system |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN206108962U (en) |
-
2016
- 2016-09-26 CN CN201621079701.XU patent/CN206108962U/en active Active
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN103071378B (en) | Two-stage biological desulfuration device of marsh gas | |
| CN107413194A (en) | Preparation method and equipment of concentrated ammonia water for desulfurization and denitrification | |
| CN208732630U (en) | A kind of transformation condensate liquid pre-concentration double tower stripping ammonia recovery unit | |
| CN206108962U (en) | Modified sewage strip is purified waste water heat and is utilized system | |
| CN105417605A (en) | Coal chemical industry wastewater steam stripping, deacidifying, and deaminating tower directly heated by steam | |
| CN204932912U (en) | A kind of stabilizer for benzene hydrogenation system | |
| CN104016344B (en) | The method of hydrogen sulfide hydrate is avoided the formation of in a kind of carbon disulphide production process | |
| CN106335876A (en) | Purification device for sulfur-containing conversion gases | |
| CN204779420U (en) | Phenol recycle device | |
| CN107129836A (en) | A kind of ammonia nitrogen removal apparatus and method based on integral gasification combined circulation technology gas gasification and desulfurization unit | |
| CN104826459A (en) | Venture reactor used for treatment of acidic gas | |
| CN207121425U (en) | A kind of NaHS automatic control production system | |
| CN103408084A (en) | Single-tower full blowing-off process condensate stripping technology adopting built-in graphite condenser | |
| CN101987722A (en) | Hydrofined gas on-line desulfurization and utilization process | |
| CN202865192U (en) | Production device of liquefied natural gas | |
| CN206706040U (en) | A kind of ammonia nitrogen removal device based on integral gasification combined circulation technology gas gasification and desulfurization unit | |
| CN203728786U (en) | Gas desulphurization device | |
| CN203653283U (en) | Device for removing ammonia by flash steam stripping instead of steam stripping | |
| CN204138621U (en) | With de-benzene heat oil-poor for thermal source without steam coal air purifying apparatus | |
| CN211921379U (en) | System for effectual regulation methyl alcohol recovery tower cauldron liquid pH value | |
| CN203731377U (en) | Two-stage condensation water distributing system | |
| CN103721531B (en) | Film absorption process and the device of NaHS is produced for sour gas | |
| CN202829635U (en) | Constant pressure dissolving recovery tower for high ammonia content waste water | |
| CN107285285A (en) | A kind of NaHS automatic control production system | |
| CN103950955B (en) | A kind of method processing synthetic ammonia installation conversion stripping tower condensation waste water |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant |