CN208340147U - A kind of distillation system recovery tower tower bottom water cooler system - Google Patents
A kind of distillation system recovery tower tower bottom water cooler system Download PDFInfo
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- CN208340147U CN208340147U CN201820514820.6U CN201820514820U CN208340147U CN 208340147 U CN208340147 U CN 208340147U CN 201820514820 U CN201820514820 U CN 201820514820U CN 208340147 U CN208340147 U CN 208340147U
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- bottom water
- tower bottom
- water cooler
- tower
- valve
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Abstract
The utility model discloses a kind of distillation system recovery tower tower bottom water cooler systems, for cooling down the tower bottom water of recovery tower in methanol fractionation system, it is characterized by comprising tower bottom water cooler (1), it is respectively communicated to crude carbinol surge tank (5) and crude carbinol tank (6) by adjusting pipeline in the condensed fluid outlet of the tower bottom water cooler (1), the adjusting pipeline includes the mass flowmenter (2) being sequentially communicated, regulating valve (3)；Distribution pipeline has been arranged in parallel from the both ends for adjusting pipeline.The beneficial effects of the utility model include: that tower bottom water cooler is cooling not in time when effectively eliminating methanol fractionation system to stop in emergency, caused by security risk, structure is simple, and input cost is low, has the function of promptly to dredge.
Description
Technical field
The utility model relates to methanol rectifications to purify field, and in particular to a kind of distillation system recovery tower tower bottom water cooler
System.
Background technique
Usually in methanol fractionation system, there are the tower bottom water of higher temperature in recovery tower, therefore usually we can return
The tower bottom for receiving tower connects tower bottom cooler, and the water temperature of tower bottom water is cooled to 45 DEG C from 117 DEG C by tower bottom cooler.It will cool down again
Tower bottom water afterwards is by pipeline to crude carbinol surge tank, as the slurry for rinsing crude carbinol surge tank；In system work
Crude carbinol tank is then directly connected to by pipeline in the case where work, for establishing the circulation of distillation system Yu crude carbinol tank.
First when methanol fractionation system stops in emergency, due to the unexpected interruption of distillation system thermic load, on tower tray
Alcohol entirely falls in recovery tower tower reactor, and then liquid level rapid increase in recovery tower tower reactor or even liquid level are higher by heat exchanger between tower
Gas phase pipe can cause vapor delivery line to vibrate and drive the vibration of recovery tower feeding line.It needs for tower bottom water to be discharged, but tower bottom is cold
But the cooling capacity of device is limited, and it can be methyl alcohol vaporizing that tower bottom coolant-temperature gage after cooling, which is higher than 75 DEG C and enters crude carbinol tank, therefore deposit
In very big security risk.
Summary of the invention
Place, the utility model provide a kind of distillation system recovery tower tower bottom water cooling in view of the deficiency of the prior art
But device system, structure is simple, and input cost is low, guarantees equipment safety operation when stopping in emergency.
In order to achieve the above object, the utility model uses following technical scheme:
A kind of distillation system recovery tower tower bottom water cooler system, for cooling down the tower bottom of recovery tower in methanol fractionation system
Water, it is characterised in that: including tower bottom water cooler, the condensed fluid outlet of the tower bottom water cooler is by adjusting pipeline difference
It is connected to crude carbinol surge tank and crude carbinol tank, the adjusting pipeline includes the mass flowmenter being sequentially communicated, regulating valve；From institute
The both ends for stating adjusting pipeline have been arranged in parallel distribution pipeline.
Further, the upstream end of the mass flowmenter is provided with the first reducer union from large to small, and in institute
The downstream for stating regulating valve is provided with the second reducer union changed from small to big.
Further, the distribution pipeline is from the big end of first reducer union and at the big end of the second reducer union
It is incorporated to the distribution pipeline.
Further, discharge branch, and three ports of the tee tube are also equipped with by tee tube on the distribution pipeline
It is respectively arranged with the first shut-off valve, the second shut-off valve, third shut-off valve.
The beneficial effects of the utility model include: tower bottom water when effectively eliminating methanol fractionation system to stop in emergency
Cooler is cooling not in time, caused by security risk, structure is simple, and input cost is low, has the function of promptly to dredge.
Detailed description of the invention
Fig. 1 is the structure principle chart of the utility model.
Specific embodiment
Combined with specific embodiments below and attached drawing is further described the utility model.
A kind of distillation system recovery tower tower bottom water cooler system as shown in Figure 1, for cooling down in methanol fractionation system
The tower bottom water of recovery tower, including tower bottom water cooler 1.Pass through regulation pipe in the condensed fluid outlet of the tower bottom water cooler 1
Road is respectively communicated to crude carbinol surge tank 5 and crude carbinol tank 6.The adjusting pipeline includes the mass flowmenter 2 being sequentially communicated, adjusts
Valve 3 is saved, and has been arranged in parallel distribution pipeline from the both ends for adjusting pipeline.
As shown in Figure 1 in an embodiment of the present invention, tower bottom water cooler 1 uses diameter for 80 millimeters
Pipeline is connected to the tower bottom of recovery tower, and the condensed fluid outlet of the tower bottom water cooler 1 also uses diameter for 80 millimeters of pipe
Road connection.It is provided with the first reducer union 7 from large to small on the pipeline of condensate liquid outflow, 80 millimeters of caliber is become 50
The caliber of millimeter.Mass flowmenter 2 and regulating valve 3 are disposed on the pipeline of 50 millimeters of calibers.In the downstream of regulating valve 3
50 millimeters of caliber is upgraded to 80 millimeters of calibers by the second reducer union 8 changed from small to big again by end, then is divided by tee tube
Two-way is connected to crude carbinol surge tank 5 all the way, and the caliber of the pipeline is 40, and the tower bottom water therein flowed through is mainly used for rinsing
The crude carbinol surge tank 5；Another way uses caliber to be connected to crude carbinol tank 6 for 80 millimeters of pipeline, for establishing methanol essence
Evaporate the circulation of methanol in system.In addition it is provided with the first gate valve on the pipeline for removing crude carbinol surge tank 5, while removing crude carbinol
The second gate valve is provided on the pipeline of tank 6, and when methanol fractionation system is under the operating condition normally started, first gate valve is beaten
It opens, while the second gate valve is closed, tower bottom water after cooling is for rinsing the crude carbinol surge tank 5 at this time；When methanol rectification system
System is under driving operating condition, then the second gate valve is opened, while the first gate valve is closed, and tower bottom water after cooling then enters described at this time
Crude carbinol tank 6 establishes the circulatory system.
It is incorporated to distribution pipeline from the stub end of first reducer union 7 and the stub end of the second reducer union 8, this point
Flow tube road uses the pipeline of 50 millimeters of calibers.Discharge branch is also provided with by tee tube on the distribution pipeline, and in tee tube
Port the first shut-off valve 9, the second shut-off valve 10, third shut-off valve 4 is respectively set, wherein one shut-off valve 9 be set to this three
At the upstream port of siphunculus；Second shut-off valve 10 is set to the downstream port of the tee tube；The then row of being set to of third shut-off valve 4
On out branch.
Above-mentioned regulating valve 3, the first gate valve, the second gate valve, the first shut-off valve 9, the second shut-off valve 10, third shut-off valve 4,
Using electric drive and manual actuation two ways.Liquid level sensor, real-time monitoring recovery tower are provided in the recovery tower
Interior liquid level, only when methanol fractionation system stops in emergency, and liquid level be more than safety value when, signal is fed back to
Controller, and opened by the first shut-off valve 9, the second shut-off valve 10 on controller control distribution pipeline, while third shut-off valve 4
It closes, extra tower bottom water is dredged by distribution pipeline.Temperature is additionally provided in the condensate outlet of tower bottom water cooler 1 simultaneously to pass
Sensor, for detect condensation after tower bottom water temperature, only after condensation tower bottom water temperature be higher than 75 DEG C when, send a signal to control
Device processed, and there is controller to control the regulating valve 3, the closing of the second shut-off valve 10, open simultaneously the first shut-off valve 9, third cut-off
The tower bottom water of overtemperature is expelled to other recyclable devices by valve 4, avoid the tower bottom water of high temperature enter crude carbinol tank 6 generate safety it is hidden
Suffer from.
Technical solution provided by the utility model embodiment is described in detail above, it is used herein specifically
A example is expounded the principle and embodiment of the utility model embodiment, and the explanation of above embodiments is only applicable to help
Assistant solves the principle of the utility model embodiment；At the same time, for those skilled in the art is implemented according to the utility model
Example, there will be changes in terms of specific embodiments and scope of application, in conclusion the content of the present specification should not be construed as
Limitations of the present invention.
Claims (4)
1. a kind of distillation system recovery tower tower bottom water cooler system, for cooling down the tower bottom of recovery tower in methanol fractionation system
Water, it is characterised in that: including tower bottom water cooler (1), pass through adjusting in the condensed fluid outlet of the tower bottom water cooler (1)
Pipeline is respectively communicated to crude carbinol surge tank (5) and crude carbinol tank (6), and the adjusting pipeline includes the mass flow being sequentially communicated
Count (2), regulating valve (3)；Distribution pipeline has been arranged in parallel from the both ends for adjusting pipeline.
2. a kind of distillation system recovery tower tower bottom water cooler system according to claim 1, it is characterised in that: described
The upstream end of mass flowmenter (2) is provided with the first reducer union (7) from large to small, and in the downstream of the regulating valve (3)
End is provided with the second reducer union (8) changed from small to big.
3. a kind of distillation system recovery tower tower bottom water cooler system according to claim 2, it is characterised in that: described point
Flow tube road is incorporated to the distribution pipeline from the big end of first reducer union (7) and at the big end of the second reducer union (8).
4. a kind of distillation system recovery tower tower bottom water cooler system according to claim 1, it is characterised in that: described point
Flow tube road also by tee tube be equipped with discharge branch, and three ports of the tee tube be respectively arranged with the first shut-off valve (9),
Second shut-off valve (10), third shut-off valve (4).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820514820.6U CN208340147U (en) | 2018-04-11 | 2018-04-11 | A kind of distillation system recovery tower tower bottom water cooler system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820514820.6U CN208340147U (en) | 2018-04-11 | 2018-04-11 | A kind of distillation system recovery tower tower bottom water cooler system |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN208340147U true CN208340147U (en) | 2019-01-08 |
Family
ID=64886162
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201820514820.6U Active CN208340147U (en) | 2018-04-11 | 2018-04-11 | A kind of distillation system recovery tower tower bottom water cooler system |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN208340147U (en) |
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2018
- 2018-04-11 CN CN201820514820.6U patent/CN208340147U/en active Active
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