CN208641813U - A kind of reboiler cooling system - Google Patents
A kind of reboiler cooling system Download PDFInfo
- Publication number
- CN208641813U CN208641813U CN201821253679.5U CN201821253679U CN208641813U CN 208641813 U CN208641813 U CN 208641813U CN 201821253679 U CN201821253679 U CN 201821253679U CN 208641813 U CN208641813 U CN 208641813U
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- CN
- China
- Prior art keywords
- reboiler
- water
- pipeline
- rectifying tower
- tower reboiler
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- 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.)
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Abstract
The utility model discloses a kind of reboiler cooling systems, including rectifying tower reboiler, supplement hot water pipeline, heating pipe, backheat pipeline, condensing water conduit and condensate water pot, one end of the supplement hot water pipeline is connected with the top delivery port of rectifying tower reboiler, the other end is connected with the water intake end of backheat pipeline, one end of the heating pipe is connected with another water outlet of rectifying tower reboiler, the other end is connected after passing through a heater with the water intake end of backheat pipeline, the water outlet of backheat pipeline is connected with the water inlet of rectifying tower reboiler, forms circulation loop；The external condensed water in one end of the condensate water pot sends pipeline outside, and the other end is connected by condensing water conduit with rectifying tower reboiler.The utility model reboiler cooling system, the temperature in reboiler is regulated and controled by three branches, by the way that temperature controller, far transmission level meter and steam-flow meter are arranged on reboiler, for temperature, liquid level and the steam flow situation in moment monitoring reboiler.
Description
Technical field
The utility model belongs to reboiler technical field more particularly to a kind of rectifying tower reboiler with cooling system.
Background technique
In generated by polyvinyl chloride by calcium carbide production technology, VCM rectification tower reboiler is generally sent using synthesis converting apparatus
Heat source of 90 DEG C of -100 DEG C of high-temperature-hot-waters as heating evaporation VCM.Contain water, oxygen etc. in VCM due to entering rectifying column
Trace impurity, therefore in heating distillation process autohemagglutination can occur for VCM, and as tower top is constantly increased to column bottom temperature, from
Poly- degree is increasingly severe, and autohemagglutination coking situation is the most serious at the tubulation near usual reboiler high-temperature-hot-water inducer, this
It is to cause the VCM temperature ratio near it much higher elsewhere, VCM is at high temperature because reboiler entrance hot water temperature is high
It is easier to that self-polymeric reaction generation high polymer occurs, the generation of high polymer provides activated centre again for other side reactions, and aggravation is certainly
It is poly-.Such vicious circle increases autopolymer content in VCM, influences VCM mass.With heat exchanger tube at reboiler hot water inlet
On autopolymer increase, the heat exchange efficiency of heat exchanger tube decline, high temperature center elapses forward, on the heat exchanger tube of entire reboiler all
Full autopolymer will be tied, heat transfer effect declines to a great extent, and last production system can be forced cleaning during shutdown reboiler and column plate.Electricity at present
The cleaning frequency of stone method VCM rectifying column and reboiler is generally 2 times/a, and the cleaning frequency of the poor enterprise of production management is shorter.
In order to solve this problem, if Chinese Patent Application No. is CN201120263288.3, the entitled one kind of utility model
Novel hot water circulation system for rectifying tower reboiler comprising rectifying tower reboiler, forced cycling hot water pump, supplement high-temperature-hot-water tune
It saves valve and hot water returns converting apparatus, wherein the hot water pipeline of rectifying tower reboiler outlet is divided into two paths, and the first access is passed through
Hot water returns converting apparatus, and the high-temperature-hot-water pipeline that alternate path is sent with hot water time converting apparatus is connected to hot water pressure together and follows
The import of ring pump, mixed water enter rectifying tower reboiler by forced cycling hot water pump pressurization.The hot water cyclesystem can
To reduce the temperature into rectifying tower reboiler hot water.But it has no idea to carry out its temperature if the temperature of reboiler is excessively high flat
Weighing apparatus.
Summary of the invention
The purpose of this utility model is that: in view of the above problems, a kind of reboiler cooling system is provided, passes through three
Branch regulates and controls the temperature in reboiler, and the reboiler after regulation is enabled to reach requirement.
The technical solution of the utility model is achieved in that a kind of reboiler cooling system, including rectifying tower reboiler,
Supplement hot water pipeline, heating pipe, backheat pipeline, condensing water conduit and condensate water pot, one end of the supplement hot water pipeline with
The top delivery port of rectifying tower reboiler is connected, and the other end is connected with the water intake end of backheat pipeline, one end of the heating pipe
It is connected with another water outlet of rectifying tower reboiler, the other end is connected after passing through a heater with the water intake end of backheat pipeline,
The water outlet of backheat pipeline is connected with the water inlet of rectifying tower reboiler, forms circulation loop；Outside one end of the condensate water pot
It connects condensed water and sends pipeline outside, the other end is connected by condensing water conduit with rectifying tower reboiler.
One of it is preferred that, the rectifying tower reboiler is equipped with temperature controller, far transmission level meter and steam stream
The contact of meter, the temperature controller is connected with the heater in rectifying tower reboiler, the contact of far transmission level meter and rectifying
Fluid level contacts in tower reboiler internal cavities, the contact of the steam-flow meter are set to the steam (vapor) outlet of rectifying tower reboiler
Place.
One of it is preferred that, suction pump and Water-pumping valve are equipped on backheat pipeline.
One of it is preferred that, it is sent outside in condensed water and is equipped with condensed water suction pump and condensation penstock on pipeline.
One of it is preferred that, supplement high-temperature-hot-water regulating valve is equipped on supplement hot water pipeline.
The utility model has the beneficial effects that the utility model reboiler cooling system, by three branches in reboiler
Temperature regulated and controled, by the way that temperature controller, far transmission level meter and steam-flow meter are arranged on reboiler, being used to the moment is supervised
Temperature, liquid level and the steam flow situation in reboiler are controlled, the service life of reboiler, rectifying column is extended.
Detailed description of the invention
Fig. 1 is the structural schematic diagram in the utility model embodiment 1.
Marked in the figure: rectifying tower reboiler 1, supplements hot water pipeline 2, heating pipe 3, backheat pipeline 4, condensate pipe
Road 5 supplements high-temperature-hot-water regulating valve 6, and heater 7, suction pump 8, Water-pumping valve 9, condensate water pot 10, condensed water draws water
Pump 11, condenses penstock 12, and condensed water sends pipeline 13, temperature controller 14, far transmission level meter 15, steam-flow meter outside
16。
Specific embodiment
With reference to the accompanying drawing, the utility model is described in detail.
In order to make the purpose of the utility model, technical solutions and advantages more clearly understood, below in conjunction with attached drawing and implementation
Example, is further elaborated the utility model technology.It should be appreciated that specific embodiment described herein is only used to
It explains the utility model, is not used to limit the utility model.
Embodiment 1:
As shown in Figure 1, a kind of reboiler cooling system, including rectifying tower reboiler 1, supplement hot water pipeline 2, heating pipe
3, backheat pipeline 4, condensing water conduit 5 and condensate water pot 10, one end of the supplement hot water pipeline 2 and rectifying tower reboiler 1
Top delivery port is connected, and the other end is connected with the water intake end of backheat pipeline 4, and the high warm of supplement is equipped on supplement hot water pipeline 2
Water regulating valve 6.One end of the heating pipe 3 is connected with another water outlet of rectifying tower reboiler 1, and the other end is added by one
It is connected after hot device 7 with the water intake end of backheat pipeline 4.Suction pump 8 and Water-pumping valve 9, backheat pipeline 4 are equipped on backheat pipeline 4
Water outlet be connected with the water inlet of rectifying tower reboiler 1, formed circulation loop.The external condensation in one end of the condensate water pot 10
Water sends pipeline 13 outside, sends outside in condensed water and is equipped with condensed water suction pump 11 and condensation penstock 12 on pipeline 13.The condensed water
The other end of tank 10 is connected by condensing water conduit 5 with rectifying tower reboiler 1.
The rectifying tower reboiler 1 is equipped with temperature controller 14, far transmission level meter 15 and steam-flow meter 16, the temperature
The contact of degree controller 14 is connected with the heater in rectifying tower reboiler 1, and the contact of far transmission level meter 15 boils again with rectifying column
The contact of fluid level contacts in 1 internal cavities of device, the steam-flow meter 16 is set to the steam (vapor) outlet of rectifying tower reboiler 1
Place.The output end of the long-distance liquid-level meter, temperature controller and steam-flow meter respectively with the input terminal phase of destilling tower controller
Even.The contact of long-distance liquid-level meter is placed in rectifying tower reboiler body interior cavity, and long-distance liquid-level meter passes through computer remote control
System, can more preferably, more intuitively control the liquid level of condensate liquid in reboiler.The contact of temperature controller is placed on heater, temperature
Degree controller is controlled remotely by a computer, and can be stablized the supply of rectifying column heat, preferably be controlled the operation temperature of rectifying column.
The contact of steam-flow meter is placed in inlet；Steam-flow meter is used to monitor the amount of the inert gas entered in reboiler.
Rectifying tower reboiler carries out the circulation of hot water by two paths, respectively supplement hot water pipeline-backheat pipeline
Circuit and heating pipe-backheat pipeline loop.Heating pipe-backheat pipeline loop is by heater to from rectifying tower reboiler
The water of extraction carries out being heated to certain temperature；Hot water pipeline-backheat pipeline loop is supplemented by will be in rectifying tower reboiler
Low-temperature water heating is drawn, and is then mixed together with the high-temperature-hot-water in heating pipe-backheat pipeline loop after heating, then again
It is withdrawn into rectifying tower reboiler by the suction pump in backheat pipeline.Condensed water in condensate water pot is entered by suction pump
In rectifying tower reboiler, play the role of temperature adjustment.By the technical program, rectifying tower reboiler import hot water temperature and hot water into
The outlet temperature difference substantially reduces, and autopolymer coking degree mitigates significantly in rectifying column and reboiler, and Low Temperature Difference can substantially reduced rectifying
The autohemagglutination degree of VCM in the process, extend reboiler and rectifying column cleaning frequency, prevented to cause because of rectifying column autohemagglutination be
The phenomenon that system cleaning during shutdown, brings certain economic benefit for enterprise, while improving the quality of VCM product.
On the rectifier unit of 200,000 tons of methanol expansion project, due to liquid level in reboiler not easy to control, tower reactor heat
It controls bad, seriously affects product quality.Sometimes full liquid level in reboiler, causes liquid hammer, and reboiler shakes；Sometimes in reboiler
Aneroid causes valve surge.Using the Steam reboiler of the utility model, preferably the liquid level of condensate liquid in reboiler is carried out
Control, tower reactor steam stable, heat are stablized, and reboiler shaking or valve surge phenomenon no longer occur；And also avoid steam
All condensation is not directly entered subsequent processing, can be reduced unnecessary waste.
The above is only the preferred embodiment of the utility model only, is not intended to limit the utility model, all at this
Made any modifications, equivalent replacements, and improvements etc., should be included in the utility model within the spirit and principle of utility model
Protection scope within.
Claims (5)
1. a kind of reboiler cooling system, including rectifying tower reboiler, it is characterised in that: further include supplement hot water pipeline, heating
Pipeline, backheat pipeline, condensing water conduit and condensate water pot, one end of the supplement hot water pipeline and the top of rectifying tower reboiler
Water outlet is connected, and the other end is connected with the water intake end of backheat pipeline, and one end of the heating pipe is another with rectifying tower reboiler
One water outlet be connected, the other end pass through a heater after be connected with the water intake end of backheat pipeline, the water outlet of backheat pipeline and
The water inlet of rectifying tower reboiler is connected, and forms circulation loop；The external condensed water in one end of the condensate water pot sends pipeline outside, separately
One end is connected by condensing water conduit with rectifying tower reboiler.
2. reboiler cooling system according to claim 1, it is characterised in that: the rectifying tower reboiler is equipped with temperature
Controller, far transmission level meter and steam-flow meter, contact and the heater phase in rectifying tower reboiler of the temperature controller
Even, the contact of far transmission level meter and the fluid level contacts in rectifying tower reboiler internal cavities, the contact of the steam-flow meter are set
It is placed in the steam outlet of rectifying tower reboiler.
3. reboiler cooling system according to claim 1, it is characterised in that: sent outside in condensed water and be equipped with condensation on pipeline
Water suction pump and condensation penstock.
4. reboiler cooling system according to claim 1, it is characterised in that: be equipped with supplement height on supplement hot water pipeline
Warm water regulating valve.
5. reboiler cooling system according to claim 1, it is characterised in that: be equipped with suction pump and pumping on backheat pipeline
Penstock.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821253679.5U CN208641813U (en) | 2018-08-06 | 2018-08-06 | A kind of reboiler cooling system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821253679.5U CN208641813U (en) | 2018-08-06 | 2018-08-06 | A kind of reboiler cooling system |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN208641813U true CN208641813U (en) | 2019-03-26 |
Family
ID=65788759
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201821253679.5U Expired - Fee Related CN208641813U (en) | 2018-08-06 | 2018-08-06 | A kind of reboiler cooling system |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN208641813U (en) |
-
2018
- 2018-08-06 CN CN201821253679.5U patent/CN208641813U/en not_active Expired - Fee Related
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| 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: 20190326 Termination date: 20190806 |