CN109011677A - Reboiler increases nitrogen disturbance device and perturbation motion method - Google Patents
Reboiler increases nitrogen disturbance device and perturbation motion method Download PDFInfo
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- CN109011677A CN109011677A CN201810980073.XA CN201810980073A CN109011677A CN 109011677 A CN109011677 A CN 109011677A CN 201810980073 A CN201810980073 A CN 201810980073A CN 109011677 A CN109011677 A CN 109011677A
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- reboiler
- pipeline
- valve
- nitrogen
- pipe line
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D3/00—Distillation or related exchange processes in which liquids are contacted with gaseous media, e.g. stripping
- B01D3/14—Fractional distillation or use of a fractionation or rectification column
- B01D3/32—Other features of fractionating columns ; Constructional details of fractionating columns not provided for in groups B01D3/16 - B01D3/30
- B01D3/322—Reboiler specifications
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- Chemical Kinetics & Catalysis (AREA)
- Separation By Low-Temperature Treatments (AREA)
Abstract
A kind of reboiler increases nitrogen disturbance device and perturbation motion method.The towers such as rectifying column, destilling tower are largely using materials at bottom of tower is heated with reboiler, and control quantity of steam achievees the purpose that control column bottom temperature, and steam and material carry out dividing wall type heat transfer in reboiler, to meet the requirement of the temperature operation of tower.A kind of reboiler increase nitrogen disturbance device, its composition includes: tower (1) and reboiler (2), tower is connected by the top of pipeline and reboiler, the side of reboiler is connected separately with steam pipe line and condensate liquid pipeline, steam control valve (3) are installed on steam pipe line, condensate liquid drain valve (4) are installed on condensate liquid pipeline, the bottom of tower is connect by feeding line (5) with reboiler bottom, feeding line is connect with reboiler pipeline (6), it is separately installed on reboiler pipeline into equipment valve (7) and is connected with the side of discharge pipe line valve (8).The present invention is applied to reboiler.
Description
Technical field:
The present invention relates to a kind of reboilers to increase nitrogen disturbance device and perturbation motion method.
Background technique:
For the towers such as rectifying column, destilling tower largely using being heated with reboiler to materials at bottom of tower, control quantity of steam reaches control
The purpose of column bottom temperature processed, steam and material carry out dividing wall type heat transfer in reboiler, to meet the requirement of the temperature operation of tower.
The form (as shown in the figure) that reboiler mostly uses vertical tube-type to exchange heat, structurally reasonable, material reverse heat-exchange has
Higher heat exchange efficiency, but in the process of running, design feature also results in the type reboiler and is heated material side dirt
Thermal resistance gradually increases in During Process of Long-term Operation, and when column bottom temperature is higher, materials at bottom of tower evaporation capacity is bigger, side medium it is easier
Impurity deposits in reboiler bottom or pipeline, influences the operation index of device, and can not Hand scarf.
Longtime running, " less serious case floats, and severe one is sunk ", accumulating over a long period for impurity can generate very big dirtiness resistance, seriously
Shi Rongyi blocks heat exchanger tube and lower pipeline, causes production that can not continue, can only carry out parking cleaning.
Summary of the invention:
The object of the present invention is to provide a kind of reboilers to increase nitrogen disturbance device and perturbation motion method, and impurity is in pipeline in order to prevent
It deposits with being accumulated in reboiler tube bank, while for online processing is carried out after generating dirtiness resistance, impurity being discharged, spy increases nitrogen
Gas disturbance device.
Above-mentioned purpose is realized by following technical scheme:
A kind of reboiler increase nitrogen disturbance device, composition include: tower and reboiler, and the tower passes through pipeline and institute
The top for the reboiler stated connects, and the side of the reboiler is connected separately with steam pipe line and condensate liquid pipeline, described
Steam control valve is installed on steam pipe line, condensate liquid drain valve is installed on the condensate liquid pipeline, the tower
Bottom is connect by feeding line with the reboiler bottom, and the feeding line is connect with reboiler pipeline, described
It is separately installed on reboiler pipeline into equipment valve and is connected with the side of discharge pipe line valve, the discharge pipe line valve
The other side is connect with discharge pipe line, described to connect in boiling device pipeline with nitrogen pipeline, is separately connected on the nitrogen pipeline
There are nitrogen pipeline valve and pressure gauge, wherein the ammonia pipeline is from pipe network.
The reboiler increases nitrogen disturbance device, the nitrogen pipeline valve and institute into equipment valve, described
The discharge pipe line valve composition pipeline valve group stated.
The reboiler increases nitrogen disturbance device, and the reboiler uses the form of vertical tube-type heat exchange.
The reboiler increases the perturbation motion method of nitrogen disturbance device, and this method comprises the following steps:
Firstly, blind plate before blind plate and discharge pipe line valve before conducting nitrogen pipeline valve, open connection reboiler pipeline into setting
Standby valve, controls the valve opening of discharge pipe line valve, gradually opens and discharge to impurity in reboiler pipeline and reboiler greatly, really
Nitrogen pressure P1 is recognized higher than material pressure P2 in reboiler, after nitrogen substitutability analysis is qualified, is closed discharge pipe line valve, is opened nitrogen
Gas pipeline valve controls nitrogen pipeline valve opening, and nitrogen enters inside reboiler, gradually opens big valve opening and increases system
Into nitrogen amount, in the case where not influencing other systems index, best nitrogen valve opening is the bigger the better, and closes nitrogen pipeline
Valve is opened discharge pipe line valve 3, is discharged to medium in system, opens nitrogen discharge after nitrogen disturbance can be repeated several times
The process of valve discharge, impurity in reboiler and pipeline is discharged.
Beneficial effects of the present invention:
1. the present invention is during operation, the stringent heat transfer effect for monitoring reboiler, column bottom temperature, heating steam or other heating are situated between
Whether the indexs such as matter additional amount change, it is found that the heat transfer effect of reboiler reduces, column bottom temperature index cannot be guaranteed and heat steaming
When the case where vapour or other heat medium additional amounts are continuously increased, it is judged as that impurity accumulates deposition in pipeline and reboiler tube bank
Online processing is carried out after generating dirtiness resistance.
2. impurity in reboiler can be discharged after increasing nitrogen disturbance device according to live practical operation situation in the present invention,
Dirtiness resistance is reduced, the deposit in attachment and pipeline in effective disturbance operational process in reboiler tube bank solves again
Phenomenon can not be discharged in impurity in boiling device, discharge after repeating 2-3 disturbance, can effectively improve reboiler heat exchange efficiency, alleviate heat exchange
Difficult problem.
3. the present invention first turns on before nitrogen pipeline valve blind plate before blind plate and discharge pipe line valve, connection reboiler is opened
Pipeline into equipment valve, control the valve opening of discharge pipe line valve, gradually open greatly to impurity in reboiler pipeline and reboiler
It is discharged, confirmation nitrogen pressure P1 is higher than material pressure P2 in reboiler, after nitrogen substitutability analysis is qualified, closes discharge pipe line
Valve opens nitrogen pipeline valve, controls nitrogen pipeline valve opening, and nitrogen enters inside reboiler, gradually opens big valve
Aperture increases system and enters nitrogen amount, and in the case where not influencing other systems index, best nitrogen valve opening is the bigger the better,
Nitrogen pipeline valve is closed, discharge pipe line valve is opened, medium in system is discharged, is beaten after nitrogen disturbance can be repeated several times
The process for opening the discharge of nitrogen discharge valve, impurity in reboiler and pipeline is discharged.
Detailed description of the invention:
Attached drawing 1 is structural schematic diagram of the invention.
In figure: 1, tower, 2, reboiler, 3, steam control valve, 4, condensate liquid drain valve, 5, feeding line, 6, boiling device
Pipeline, 7, into equipment valve, 8, discharge pipe line valve, 9, discharge pipe line, 10, nitrogen pipeline, 11, nitrogen pipeline valve, 12, pressure
Power table.
Specific embodiment:
Embodiment 1:
A kind of reboiler increases nitrogen disturbance device, and composition includes: tower 1 and reboiler 2, the tower by pipeline with
The top of the reboiler connects, and the side of the reboiler is connected separately with steam pipe line and condensate liquid pipeline, described
Steam pipe line on steam control valve 3 is installed, condensate liquid drain valve 4, the tower are installed on the condensate liquid pipeline
The bottom of device is connect by feeding line 5 with the reboiler bottom, and the feeding line is connect with reboiler pipeline 6,
It is separately installed on the reboiler pipeline into equipment valve 7 and is connected with the side of discharge pipe line valve 8, the delivery pipe
The other side of line valve is connect with discharge pipe line 9, described to connect in boiling device pipeline with nitrogen pipeline 10, the nitrogen pipeline
On be connected separately with nitrogen pipeline valve 11 and pressure gauge 12, wherein the ammonia pipeline is from pipe network.
Embodiment 2:
Increase nitrogen disturbance device, the nitrogen pipeline valve into equipment valve, described according to reboiler described in embodiment 1
Door and the discharge pipe line valve form pipeline valve group.
Embodiment 3:
The reboiler according to embodiment 1 or 2 increases nitrogen disturbance device, and the reboiler is exchanged heat using vertical tube-type
Form.
Embodiment 4:
Reboiler described in a kind of one of embodiment 1-3 increases the perturbation motion method of nitrogen disturbance device, and this method includes following step
It is rapid:
Firstly, blind plate before blind plate and discharge pipe line valve before conducting nitrogen pipeline valve, open connection reboiler pipeline into setting
Standby valve, controls the valve opening of discharge pipe line valve, gradually opens and discharge to impurity in reboiler pipeline and reboiler greatly, really
Nitrogen pressure P1 is recognized higher than material pressure P2 in reboiler, after nitrogen substitutability analysis is qualified, is closed discharge pipe line valve, is opened nitrogen
Gas pipeline valve controls nitrogen pipeline valve opening, and nitrogen enters inside reboiler, gradually opens big valve opening and increases system
Into nitrogen amount, in the case where not influencing other systems index, best nitrogen valve opening is the bigger the better, and closes nitrogen pipeline
Valve is opened discharge pipe line valve, is discharged to medium in system, opens nitrogen discharge valve after nitrogen disturbance can be repeated several times
Impurity in reboiler and pipeline is discharged the process of discharge.
Nitrogen disturbance device introduction: can be using nitrogen for inflammable and explosive or strict control oxygen content system or other are lazy
Property gas as disturbance medium, it is desirable that disturbance medium do not reacted with material in system, be immiscible, on system without influence, disturb simultaneously
The pressure of dynamic medium is higher than system pressure.Increase pipeline valve group in reboiler bottom feed line or device bottom, into setting
Standby valve:, nitrogen pipeline valve, discharge pipe line valve.
Claims (4)
1. a kind of reboiler increases nitrogen disturbance device, composition includes: tower and reboiler, it is characterized in that: the tower
It is connect by pipeline with the top of the reboiler, the side of the reboiler is connected separately with steam pipe line and condensate liquid
Pipeline is equipped with steam control valve on the steam pipe line, condensate liquid drain valve, institute is equipped on the condensate liquid pipeline
The bottom for the tower stated is connect by feeding line with the reboiler bottom, and the feeding line and reboiler pipeline connect
It connects, is separately installed on the reboiler pipeline into equipment valve and is connected with the side of discharge pipe line valve, the discharge
The other side of pipeline valve is connect with discharge pipe line, described to connect in boiling device pipeline with nitrogen pipeline, the nitrogen pipeline
On be connected separately with nitrogen pipeline valve and pressure gauge, wherein the ammonia pipeline is from pipe network.
2. reboiler according to claim 1 increases nitrogen disturbance device, it is characterized in that: described into equipment valve, institute
The nitrogen pipeline valve stated and the discharge pipe line valve composition pipeline valve group.
3. reboiler according to claim 1 increases nitrogen disturbance device, it is characterized in that: the reboiler is using vertical
The form of shell and tube heat exchange.
4. reboiler described in a kind of one of claim 1-3 increases the perturbation motion method of nitrogen disturbance device, it is characterized in that: should
Method includes the following steps:
Firstly, blind plate before blind plate and discharge pipe line valve before conducting nitrogen pipeline valve, open connection reboiler pipeline into setting
Standby valve, controls the valve opening of discharge pipe line valve, gradually opens and discharge to impurity in reboiler pipeline and reboiler greatly, really
Nitrogen pressure P1 is recognized higher than material pressure P2 in reboiler, after nitrogen substitutability analysis is qualified, is closed discharge pipe line valve, is opened nitrogen
Gas pipeline valve controls nitrogen pipeline valve opening, and nitrogen enters inside reboiler, gradually opens big valve opening and increases system
Into nitrogen amount, in the case where not influencing other systems index, best nitrogen valve opening is the bigger the better, and closes nitrogen pipeline
Valve is opened discharge pipe line valve, is discharged to medium in system, opens nitrogen discharge valve after nitrogen disturbance can be repeated several times
Impurity in reboiler and pipeline is discharged the process of discharge.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810980073.XA CN109011677A (en) | 2018-08-28 | 2018-08-28 | Reboiler increases nitrogen disturbance device and perturbation motion method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810980073.XA CN109011677A (en) | 2018-08-28 | 2018-08-28 | Reboiler increases nitrogen disturbance device and perturbation motion method |
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| Publication Number | Publication Date |
|---|---|
| CN109011677A true CN109011677A (en) | 2018-12-18 |
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| CN201810980073.XA Pending CN109011677A (en) | 2018-08-28 | 2018-08-28 | Reboiler increases nitrogen disturbance device and perturbation motion method |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115350989A (en) * | 2022-07-29 | 2022-11-18 | 鞍钢股份有限公司 | Online cleaning method for steam reboiler of desulfurization system |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20020017111A1 (en) * | 1999-12-23 | 2002-02-14 | Francois Fuentes | Distillation separation apparatus and method of cleaning a reboiler/condenser of the apparatus |
| CN201626931U (en) * | 2009-12-17 | 2010-11-10 | 浙江恒业成有机硅有限公司 | Methylchlorosilane mixture monomer high boiling removal device |
| CN108046356A (en) * | 2017-11-02 | 2018-05-18 | 上海首济化工科技有限公司 | A kind of cooling evaporation process method and device of higher liquid |
-
2018
- 2018-08-28 CN CN201810980073.XA patent/CN109011677A/en active Pending
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20020017111A1 (en) * | 1999-12-23 | 2002-02-14 | Francois Fuentes | Distillation separation apparatus and method of cleaning a reboiler/condenser of the apparatus |
| CN201626931U (en) * | 2009-12-17 | 2010-11-10 | 浙江恒业成有机硅有限公司 | Methylchlorosilane mixture monomer high boiling removal device |
| CN108046356A (en) * | 2017-11-02 | 2018-05-18 | 上海首济化工科技有限公司 | A kind of cooling evaporation process method and device of higher liquid |
Non-Patent Citations (1)
| Title |
|---|
| 张学才: "《化工单元操作技术》", 30 April 2014, 合肥：安徽大学出版社 * |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115350989A (en) * | 2022-07-29 | 2022-11-18 | 鞍钢股份有限公司 | Online cleaning method for steam reboiler of desulfurization system |
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Application publication date: 20181218 |