CN208237847U - A kind of propene carbonate pressurizing tower heat source reuse means - Google Patents
A kind of propene carbonate pressurizing tower heat source reuse means Download PDFInfo
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- CN208237847U CN208237847U CN201820385354.6U CN201820385354U CN208237847U CN 208237847 U CN208237847 U CN 208237847U CN 201820385354 U CN201820385354 U CN 201820385354U CN 208237847 U CN208237847 U CN 208237847U
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Abstract
The utility model relates to a kind of propene carbonate pressurizing tower heat source reuse means.Its technical solution is: being parallel with secondary pipeline and main conveyor line by pipeline at the top of pressurizing tower, secondary pipeline directly passes through discharging pipeline and is connected to return tank, pressurizing tower regulating valve is equipped on discharging pipeline, main conveyor line connects two material pipelines, the top of a piece material pipeline connection heat exchanger A, the top of another material pipeline connection heat exchanger B, deaerated water pipeline is connected respectively to the lower part of heat exchanger A and heat exchanger B, connects deaerated water output line with the top of heat exchanger B in heat exchanger A.The beneficial effects of the utility model are: the utility model can be effectively reduced the energy consumption that deaerated water uses steam, it will also effectively react the extra heat source of pressurizing tower and remove, material component is subjected to effective control separation.
Description
Technical field
The utility model relates to a kind of propene carbonate pressurizing tower heat sources to utilize device, in particular to a kind of propene carbonate
Pressurizing tower heat source reuse means.
Background technique
Propene carbonate is a kind of industrial chemicals less toxic, environmental-protecting performance is excellent, widely used, it, which is that one kind is important, has
Machine synthetic intermediate has a variety of reactivity worth, is producing containing functional groups such as carbonyl, methyl and methoxyl groups in molecular structure
In have the characteristics that using conveniently, safely, pollution less, be easy transport.It is a kind of with hair since propene carbonate toxicity is smaller
" green " chemical products of exhibition prospect.The reaction of propene carbonate and methanol ester exchange reaction synthesizing acrylic ester is one reversible
Reaction, therefore reaction rectification technique is used, to promote the progress of reaction, improve propene carbonate yield.Reactive distillation collection reaction and
Rectifying separation one, removes reaction product in time, keeps balance mobile to product direction, obtains feed stock conversion to greatest extent
It improves.Using sodium methoxide as catalyst, have stronger catalytic activity, selectivity high.Increase the content of methanol in conversion zone,
, raising conversion ratio mobile to the direction for being conducive to generate propene carbonate can be made to balance.And carbonic acid is separated using compression rectification technology
Acrylic ester and methanol azeotrope, compression rectification are to improve the pressure of knockout tower in distillation process, change propene carbonate and first
The azeotropic temperature of alcohol azeotropic mixture successfully solves the separation problem of the azeotropic mixture.It is main in propene carbonate pressurization column overhead
Heat source output point is wanted, conventional in use, many waste heats waste, cannot be used, cause the consumption of the energy, at present
Deaerated water has thermal de-aeration, usually by steam deoxygenation, needs a large amount of steam, causes many energy consumptions.
Summary of the invention
The purpose of this utility model provides a kind of propene carbonate pressurization aiming at drawbacks described above of the existing technology
Tower heat source reuse means can be effectively reduced the energy consumption that deaerated water uses steam, it is extra will also effectively to react pressurizing tower
Heat source is removed, and material component is carried out effective control separation.
Its technical solution is: including pressurizing tower, secondary pipeline, main conveyor line, heat exchanger A, heat exchanger B, material pipeline,
Material output line, pressurizing tower regulating valve, return tank, deaerated water pipeline, deaerated water output line, pass through pipe at the top of pressurizing tower
Line is parallel with secondary pipeline and main conveyor line, and secondary pipeline directly passes through discharging pipeline and is connected to return tank, on discharging pipeline
Equipped with pressurizing tower regulating valve, main conveyor line connects two material pipelines, and a material pipeline connects the top of heat exchanger A,
The bottom of the top of another material pipeline connection heat exchanger B, heat exchanger A and heat exchanger B pass through material output line respectively and connect
It is connected to discharging pipeline, deaerated water pipeline is connected respectively to the lower part of heat exchanger A and heat exchanger B, sets on deaerated water pipeline
There are deoxygenation water regulating valve and flowmeter, connects deaerated water output line with the top of heat exchanger B in heat exchanger A.
Preferably, power deoxygenation water heating system line is connected at deaerated water pipeline, in power deoxygenation water heating system
Control switch is installed on line.
Preferably, secondary pipeline control valve is installed on secondary pipeline.
Preferably, material delivery control valve is installed on two material pipelines.
Preferably, deaerated water transfer valve is installed in deaerated water pipeline and heat exchanger A, heat exchanger B connectivity part, in deoxygenation
Water output line and heat exchanger A, heat exchanger B connectivity part are equipped with deaerated water delivery valve.
The beneficial effects of the utility model are: the utility model can be effectively reduced the energy consumption that deaerated water uses steam,
It will also effectively react the extra heat source of pressurizing tower to remove, material component be subjected to effective control separation, the carbonic acid third of the device
Enester pressurization column overhead is main heating source output point, and after increasing heat exchanger, after deaerated water heat exchange, waste heat is carried out
Heat exchange achievees the purpose that heat source recycles, and before investment, material end is first returned heat-source Cycles in pressurizing tower by secondary pipeline,
When deoxygenation water flow, pressure, temperature, which reach technique, requires parameter, investment high-performance heat exchanger realizes circulation, and pressurizing tower is by material
End is adjusted material end mass flow by bottom compression tower regulating valve after high-performance heat exchanger top enters heat exchanger, is controlled
Heat source amount has achieved the purpose that residual heat of reaction recycles.
Detailed description of the invention
Attached drawing 1 is the flow system figure of the utility model；
Attached drawing 2 is deaerated water heat exchange process system diagram；
In figure: pressurizing tower 1, secondary pipeline 2, main conveyor line 3, heat exchanger A4, heat exchanger B5, material pipeline 6, material are defeated
Outlet 7, pressurizing tower regulating valve 8, return tank 9, deaerated water pipeline 10, deoxygenation water regulating valve 11, flowmeter 12, deaerated water output
Line 13, power deoxygenation water heating system line 14, control switch 15, secondary pipeline control valve 16, material delivery control valve 17, deoxygenation
Water transfer valve 18, deaerated water delivery valve 19, discharging pipeline 20.
Specific embodiment
It is illustrated below in conjunction with preferred embodiment of the attached drawing to the utility model, it should be understood that described herein excellent
It selects embodiment to be only used for describing and explaining the present invention, is not used to limit the utility model.
The utility model includes pressurizing tower 1, secondary pipeline 2, main conveyor line 3, heat exchanger A4, heat exchanger B5, material conveying
Line 6, material output line 7, pressurizing tower regulating valve 8, return tank 9, deaerated water pipeline 10, deaerated water output line 13, in pressurizing tower 1
Top secondary pipeline 2 and main conveyor line 3 are parallel with by pipeline, secondary pipeline 2 is directly connected to back by the pipeline 20 that discharges
Tank 9 is flowed, pressurizing tower regulating valve 8 is equipped on discharging pipeline 20, main conveyor line 3 connects two material pipelines 6, and a material is defeated
Line sending 6 connects the top of heat exchanger A4, and another material pipeline 6 connects the top of heat exchanger B5, heat exchanger A4 and heat exchanger
The bottom of B5 passes through material output line 7 respectively and is connected to discharging pipeline 20, and deaerated water pipeline 10 is connected respectively to heat exchanger A4
With the lower part of heat exchanger B5, deoxygenation water regulating valve 11 and flowmeter 12 are equipped on deaerated water pipeline 10, in heat exchanger A4 and
The top of heat exchanger B5 connects deaerated water output line 13, is effectively reduced the energy consumption that deaerated water uses steam, also effectively will be anti-
The extra heat source of pressurizing tower is answered to remove.
Wherein, power deoxygenation water heating system line 14 is connected at deaerated water pipeline 10, heats system in power deaerated water
Control switch 15 is installed on system line 14, controls the input of power deoxygenation water heating system steam.
In addition, being equipped with secondary pipeline control valve 16 on secondary pipeline 2, the switch of secondary pipeline is realized.
In addition, being equipped with material delivery control valve 17 on two material pipelines 6, the conveying of material is controlled.
In addition, deaerated water transfer valve 18 is installed in deaerated water pipeline 10 and heat exchanger A4, heat exchanger B5 connectivity part,
Deaerated water output line 13 and heat exchanger A4, heat exchanger B5 connectivity part are equipped with deaerated water delivery valve 19, and deaerated water transfer valve 18 is controlled
Deaerated water processed enters the flow of heat exchanger, and deaerated water delivery valve controls the flow of deaerated water output heat exchanger.
Before investment, heat-source Cycles, by the pipeline that discharges, are returned pressurizing tower by return tank first by secondary pipeline by material end
Interior, when deoxygenation water flow, pressure, temperature, which reach technique, requires parameter, investment high-performance heat exchanger circulation, pressurizing tower is by material end
After high-performance heat exchanger top enters heat exchanger, material end mass flow, control heat are adjusted by bottom compression tower regulating valve
Source amount has achieved the purpose that residual heat of reaction recycles.
Pressurize tower top and deaerated water progress heat exchange operation, now opens the deaerated water transfer valve of deaerated water disengaging heat exchanger,
Deoxygenation water flow is by 0 control to 150m3/H, and deaerated water carrys out coolant-temperature gage at 35 DEG C at this time；By the object at pressurizing tower jacking heat exchanger
Expect that delivery control valve is opened, closes secondary pipeline control valve, deoxygenation coolant-temperature gage is slowly rising at this time, and power deaerated water is heated
Control switch in system line turns down, and after temperature rises to 85 DEG C, initially enters the stabilization sub stage.
The utility model can be effectively reduced the energy consumption that deaerated water uses steam, and it is extra will also effectively to react pressurizing tower
Heat source is removed, and material component is carried out effective control separation, the propene carbonate pressurization column overhead of the device is main heating source
Waste heat after deaerated water heat exchange, is carried out heat exchange after increasing heat exchanger by output point, reaches heat source recycling
Purpose, before investment, material end is first returned heat-source Cycles in pressurizing tower by secondary pipeline, when deoxygenation water flow, pressure, temperature reach
When requiring parameter to technique, investment high-performance heat exchanger realizes circulation, and pressurizing tower enters at material end by high-performance heat exchanger top
After heat exchanger, material end mass flow is adjusted by bottom compression tower regulating valve, controls heat source amount, it is sharp again to have reached residual heat of reaction
Purpose.
The above, is only the preferred embodiment of the utility model, and anyone skilled in the art may benefit
Equivalent technical solution is modified the utility model or is revised as with the technical solution of above-mentioned elaboration.Therefore, foundation
Any simple modification or substitute equivalents that the technical solution of the utility model is carried out belong to the greatest extent the requires of the utility model protection
Range.
Claims (5)
1. a kind of propene carbonate pressurizing tower heat source reuse means, it is characterized in that: include pressurizing tower (1), secondary pipeline (2),
Main conveyor line (3), heat exchanger A(4), heat exchanger B(5), material pipeline (6), material output line (7), pressurizing tower regulating valve
(8), return tank (9), deaerated water pipeline (10), deaerated water output line (13) pass through pipeline parallel connection at the top of pressurizing tower (1)
There are secondary pipeline (2) and main conveyor line (3), secondary pipeline (2) is directly connected to return tank (9) by discharging pipeline (20),
Pipeline (20) are discharged equipped with pressurizing tower regulating valve (8), main conveyor line (3) connects two material pipelines (6), and a material is defeated
Line sending (6) connects heat exchanger A(4) top, another material pipeline (6) connect heat exchanger B(5) top, heat exchanger A
(4) and heat exchanger B(5) bottom pass through respectively material output line (7) be connected to discharging pipeline (20), deaerated water pipeline (10)
Be connected respectively to heat exchanger A(4) and heat exchanger B(5) lower part, on deaerated water pipeline (10) be equipped with deoxygenation water regulating valve
(11) and flowmeter (12) deaerated water output line (13), are connected with the top of heat exchanger B(5) in heat exchanger A(4).
2. a kind of propene carbonate pressurizing tower heat source reuse means according to claim 1, it is characterized in that: in deaerated water
Power deoxygenation water heating system line (14) are connected at pipeline (10), control is installed on power deoxygenation water heating system line (14)
System switch (15).
3. a kind of propene carbonate pressurizing tower heat source reuse means according to claim 1, it is characterized in that: being conveyed in pair
Secondary pipeline control valve (16) is installed on line (2).
4. a kind of propene carbonate pressurizing tower heat source reuse means according to claim 1, it is characterized in that: in two objects
Material delivery control valve (17) are installed on material pipeline (6).
5. a kind of propene carbonate pressurizing tower heat source reuse means according to claim 1, it is characterized in that: in deaerated water
Pipeline (10) is equipped with deaerated water transfer valve (18) with heat exchanger A(4), heat exchanger B(5) connectivity part, in deaerated water output line
(13) deaerated water delivery valve (19) are installed with heat exchanger A(4), heat exchanger B(5) connectivity part.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820385354.6U CN208237847U (en) | 2018-03-21 | 2018-03-21 | A kind of propene carbonate pressurizing tower heat source reuse means |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820385354.6U CN208237847U (en) | 2018-03-21 | 2018-03-21 | A kind of propene carbonate pressurizing tower heat source reuse means |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN208237847U true CN208237847U (en) | 2018-12-14 |
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|---|---|---|---|
| CN201820385354.6U Active CN208237847U (en) | 2018-03-21 | 2018-03-21 | A kind of propene carbonate pressurizing tower heat source reuse means |
Country Status (1)
| Country | Link |
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| CN (1) | CN208237847U (en) |
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2018
- 2018-03-21 CN CN201820385354.6U patent/CN208237847U/en active Active
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| GR01 | Patent grant | ||
| CP01 | Change in the name or title of a patent holder |
Address after: No. 198, Tongxing Road, Kenli District, Dongying City, Shandong Province 257000 Patentee after: Shenghua New Material Group Co.,Ltd. Address before: No. 198, Tongxing Road, Kenli District, Dongying City, Shandong Province 257000 Patentee before: SHANDONG SHIDA SHENGHUA CHEMICAL GROUP Co.,Ltd. |
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| CP01 | Change in the name or title of a patent holder |