CN206570253U - Expoxy propane piece-rate system capable of reducing energy consumption - Google Patents
Expoxy propane piece-rate system capable of reducing energy consumption Download PDFInfo
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- CN206570253U CN206570253U CN201621494215.4U CN201621494215U CN206570253U CN 206570253 U CN206570253 U CN 206570253U CN 201621494215 U CN201621494215 U CN 201621494215U CN 206570253 U CN206570253 U CN 206570253U
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- condenser
- return tank
- lightness
- column
- pump
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Abstract
The utility model is related to a kind of piece-rate system, specifically related to a kind of expoxy propane piece-rate system capable of reducing energy consumption, including lightness-removing column, lightness-removing column connects rectifying column by lightness-removing column kettle pump, rectifying column top exit connects condenser bottom return tank II by first-stage condenser and secondary condenser respectively, condenser bottom return tank II connects expoxy propane discharge nozzle and rectifier entrance respectively by return tank discharging pump, rectifier bottoms outlet connects rectifying column lower entrances by return line and rectifying column reboiler, rectifier bottoms outlet also passes through rectifying tower reactor pump and reboiler connection washing knockout tower, washing knockout tower upper inlet connects hot-water cylinder by going out water pump, wash separation column outlet and return tank is connected by condenser I, return tank connects rectifying column by return tank discharging pump.The utility model is simple in construction, reasonable in design, it is possible to increase separating effect, loss and the production cost of rectification working process oxypropylene is reduced, with stronger practicality.
Description
Technical field
The utility model is related to a kind of piece-rate system, and in particular to a kind of expoxy propane piece-rate system capable of reducing energy consumption.
Background technology
With the technical optimization transformation to propylene oxide unit, the yield of expoxy propane is also gradually being lifted, but
In the production system of expoxy propane, the bottleneck of rectification working process always for influence production.Because product propylene is passing through rectifying
After top of tower effusion, the heavy constituent oxypropylene content in rectifying column still has about 35%, if directly carrying out subsequent treatment, makes
Into larger waste.At present, enterprise reduces the production cost of expoxy propane, increase enterprise to reduce the loss of rectification working process
The economic benefit of industry, can be separated by dehydrating tower to the heavy constituent in rectifying column, still, due to propionic aldehyde and expoxy propane boiling
Point is close, and charging light component content is relatively low in dehydrating tower and needs higher temperature, not only causes expoxy propane can not with propionic aldehyde
It is kept completely separate, causes certain waste, and substantial amounts of aldehydes is had in separation process and be recycled into rectifying column, causes rectifying
System energy consumption is excessive, adds the production cost of expoxy propane.
Utility model content
According to deficiency of the prior art above, problem to be solved in the utility model is：There is provided a kind of simple in construction, if
Meter is reasonable, it is possible to increase separating effect, reduce rectification working process oxypropylene loss and production cost it is capable of reducing energy consumption
Expoxy propane piece-rate system.
The utility model solves the technical scheme that its technical problem used：
Described expoxy propane piece-rate system capable of reducing energy consumption, including lightness-removing column, lightness-removing column are connected by lightness-removing column kettle pump
Rectifying column is connect, rectifying column top exit connects condenser bottom return tank II by first-stage condenser and secondary condenser respectively,
Condenser bottom return tank II connects expoxy propane discharge nozzle and rectifier entrance respectively by return tank discharging pump II, essence
Evaporate tower bottom outlet and rectifying column lower entrances are connected by return line and rectifying column reboiler, rectifier bottoms outlet also passes through
Rectifying tower reactor pump and reboiler connection washing knockout tower, washing knockout tower upper inlet connect hot-water cylinder, washing by going out water pump
Separation column outlet connects return tank by condenser I, and return tank connects rectifying column by return tank discharging pump I.
Expoxy propane piece-rate system by rectifying column rear portion set washing knockout tower, by rectifying kettle liquid after heating from
Bottom enters washing knockout tower, while using hot-water cylinder, the hot water in hot-water cylinder is pumped on washing knockout tower by going out water pump
Enter essence after portion, ascending air and hot water contacts and then the removing aldehydes of rectifying kettle liquid, the condensed device of water separation column top gas
Tower is evaporated, secondary full gear purification is carried out, the effect of expoxy propane is improved, the production cost of expoxy propane is reduced, passes through water separation column
Dealcoholysis process, when being recycled into rectifying column secondary purification, the energy consumption of rectifying column can be reduced, it is simple in construction, it is reasonable in design.
It is further preferred, the charging aperture connection lightness-removing column feed pump of lightness-removing column, lightness-removing column top exit connection condenser
II, the connection condenser of condenser II bottom return tank I, condenser bottom return tank I connects de- light by return tank discharging pump III
Tower, lightness-removing column outlet at bottom connects lightness-removing column lower entrances by pipeline and lightness-removing column reboiler, and lightness-removing column outlet at bottom also leads to
Cross lightness-removing column kettle pump connection rectifying column.
Further preferably condenser II includes three condensers being arranged in series, and three condensers are all connected with condenser
Bottom return tank I.Improve condensation effect.
Further preferably first-stage condenser includes three condensers being arranged in series, and three condensers are all connected with condensation
Device bottom return tank II, secondary condenser includes being arranged in series two condensers, and two condensers are all connected with condenser bottom and returned
Flow tank II.Improve condensation effect.
Further preferred, condenser I includes being arranged in series two condensers, and two condensers are all connected with return tank.Carry
High condensation effect.
The utility model is had an advantageous effect in that：
Expoxy propane piece-rate system capable of reducing energy consumption described in the utility model is simple in construction, reasonable in design, Neng Gou great
Amplitude improves the extracted amount of rectification working process oxypropylene, the separating effect of expoxy propane and propionic aldehyde is improved, while passing through water
The effect of knockout tower and hot-water cylinder is washed, the aldehydes amount being recycled into rectifying column can be reduced, the energy consumption of rectifying column is reduced, enter
And the production cost of expoxy propane is reduced, the economic benefit of enterprise is improved, with stronger practicality.
Brief description of the drawings
Fig. 1 is structural representation of the present utility model；
Wherein, 1, lightness-removing column；2nd, condenser bottom return tank I；3rd, condenser II；4th, rectifying column；5th, first-stage condenser；6、
Secondary condenser；7th, expoxy propane discharge nozzle；8th, reboiler；9th, knockout tower is washed；10th, condenser I；11st, return tank；12nd, return
Flow tank discharging pump I；13rd, water pump is gone out；14th, hot-water cylinder；15th, return tank discharging pump II；16th, condenser bottom return tank II；17th, it is smart
Evaporate tower reactor pump；18th, return line；19th, rectifying column reboiler；20th, lightness-removing column kettle pump；21st, return tank discharging pump III；22nd, take off light
Tower reboiler；23rd, lightness-removing column feed pump.
Embodiment
Embodiment of the present utility model is described further below in conjunction with the accompanying drawings：
As shown in figure 1, expoxy propane piece-rate system capable of reducing energy consumption described in the utility model, including lightness-removing column 1, take off
The charging aperture connection lightness-removing column feed pump 23 of light tower 1, the top exit of lightness-removing column 1 connection condenser II 3, the connection of condenser II 3 is cold
Condenser bottom return tank I 2, condenser bottom return tank I 2 connects lightness-removing column 1, the bottom of lightness-removing column 1 by return tank discharging pump III 21
Portion outlet connects the lower entrances of lightness-removing column 1 by pipeline and lightness-removing column reboiler 22, and the outlet at bottom of lightness-removing column 1 also passes through lightness-removing column
Kettle pump 20 connects rectifying column 4, and the top exit of rectifying column 4 connects condenser bottom by first-stage condenser 5 and secondary condenser 6 respectively
Portion's return tank II 16, condenser bottom return tank II 16 connects expoxy propane discharge nozzle 7 respectively by return tank discharging pump II 15
With the upper entrance of rectifying column 4, the outlet at bottom of rectifying column 4 is connected under rectifying column 4 by return line 18 and rectifying column reboiler 19
Portion's entrance, the outlet at bottom of rectifying column 4 also by rectifying tower reactor pump 17 and the connection washing knockout tower 9 of reboiler 8, washes knockout tower 9
Upper inlet connects hot-water cylinder 14 by going out water pump 13, and the washing top exit of knockout tower 9 connects return tank by condenser I 10
11, return tank 11 connects rectifying column 4 by return tank discharging pump I 12.
Wherein, condenser I 10 includes being arranged in series two condensers, and two condensers are all connected with return tank 11.Condenser
II 3 three condensers including being arranged in series, three condensers are all connected with condenser bottom return tank I 2.First-stage condenser 5 is wrapped
Three condensers being arranged in series are included, three condensers are all connected with condenser bottom return tank II 16, and secondary condenser 6 includes string
Connection sets two condensers, and two condensers are all connected with condenser bottom return tank II 16.
Operation principle of the present utility model and use process：
When in use, thick PO enters in lightness-removing column 1 described expoxy propane piece-rate system through lightness-removing column feed pump 23, takes off light
The condensed device II 3 of gas at the top of tower 1 enters condenser bottom return tank I 2 after condensing, and then passes through return tank discharging pump III 21
Flow back into lightness-removing column 1, the restructuring lease making lightness-removing column kettle pump 20 obtained by the processing of lightness-removing column 1 is squeezed into rectifying column 4 and weighed
Component is removed, and gas enters condenser bottom return tank II 16 by first-stage condenser 5 and the condensation of secondary condenser 6, through backflow
The part of tank discharging pump II 15 is segregated into finished product tank field, and another part is back to rectifying column 4 and used.In rectifying column 4
Recombinate lease making rectifying tower reactor pump 17 and enter reboiler 8, by entering water from washing knockout tower 9 bottom after the heating and gasifying of reboiler 8
Wash in knockout tower 9, then store hot water using hot-water cylinder 14, hot water enters washing knockout tower 9 top by going out water pump 13, with
Ascending air contact carries out full gear, and the washing top gas of knockout tower 9 enters return tank 11 after the condensation of condenser I 10, then
Squeezed into by return tank discharging pump I 12 as secondary feeds and secondary separation is carried out in rectifying column 4.
The utility model is simple in construction, reasonable in design, and the separating effect of expoxy propane and propionic aldehyde can be greatly improved,
The aldehydes amount being recycled into rectifying column is reduced, and then reduces the energy consumption of rectifying column, while reducing the life of expoxy propane
Cost is produced, the economic benefit of enterprise is improved, with stronger practicality.
The utility model is not limited in above-mentioned embodiment, and those of ordinary skill in the art are of the present utility model
The variations, modifications, additions or substitutions made in essential scope, should also belong to protection domain of the present utility model.
Claims (5)
1. a kind of expoxy propane piece-rate system capable of reducing energy consumption, it is characterised in that：Including lightness-removing column (1), lightness-removing column (1) passes through
Lightness-removing column kettle pump (20) connection rectifying column (4), rectifying column (4) top exit passes through first-stage condenser (5) and B-grade condensation respectively
Device (6) connection condenser bottom return tank II (16), condenser bottom return tank II (16) passes through return tank discharging pump II (15)
Expoxy propane discharge nozzle (7) and rectifying column (4) upper entrance is connected respectively, and rectifying column (4) outlet at bottom passes through return line
(18) and rectifying column reboiler (19) connection rectifying column (4) lower entrances, rectifying column (4) outlet at bottom also passes through rectifying tower reactor pump
(17) connect with reboiler (8) and wash knockout tower (9), washing knockout tower (9) upper inlet connects hot water by going out water pump (13)
Tank (14), washing knockout tower (9) top exit connects return tank (11) by condenser I (10), and return tank (11) passes through backflow
Tank discharging pump I (12) connection rectifying column (4).
2. expoxy propane piece-rate system capable of reducing energy consumption according to claim 1, it is characterised in that：Described lightness-removing column
(1) charging aperture connection lightness-removing column feed pump (23), lightness-removing column (1) top exit connection condenser II (3), condenser II (3)
Condenser bottom return tank I (2) is connected, condenser bottom return tank I (2) connects lightness-removing column by return tank discharging pump III (21)
(1), lightness-removing column (1) outlet at bottom connects lightness-removing column (1) lower entrances, lightness-removing column by pipeline and lightness-removing column reboiler (22)
(1) outlet at bottom also connects rectifying column (4) by lightness-removing column kettle pump (20).
3. expoxy propane piece-rate system capable of reducing energy consumption according to claim 2, it is characterised in that：Described condenser
II (3) include three condensers being arranged in series, and three condensers are all connected with condenser bottom return tank I (2).
4. expoxy propane piece-rate system capable of reducing energy consumption according to claim 1, it is characterised in that：Described one-level is cold
Condenser (5) includes three condensers being arranged in series, and three condensers are all connected with condenser bottom return tank II (16), and two grades cold
Condenser (6) includes being arranged in series two condensers, and two condensers are all connected with condenser bottom return tank II (16).
5. expoxy propane piece-rate system capable of reducing energy consumption according to claim 1, it is characterised in that：Described condenser
I (10) include being arranged in series two condensers, and two condensers are all connected with return tank (11).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201621494215.4U CN206570253U (en) | 2016-12-31 | 2016-12-31 | Expoxy propane piece-rate system capable of reducing energy consumption |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201621494215.4U CN206570253U (en) | 2016-12-31 | 2016-12-31 | Expoxy propane piece-rate system capable of reducing energy consumption |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN206570253U true CN206570253U (en) | 2017-10-20 |
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ID=60061764
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201621494215.4U Expired - Fee Related CN206570253U (en) | 2016-12-31 | 2016-12-31 | Expoxy propane piece-rate system capable of reducing energy consumption |
Country Status (1)
| Country | Link |
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| CN (1) | CN206570253U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111574480A (en) * | 2020-05-08 | 2020-08-25 | 江西江氨科技有限公司 | Epoxypropane refining and extracting system containing epoxypropane industrial tail gas |
-
2016
- 2016-12-31 CN CN201621494215.4U patent/CN206570253U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111574480A (en) * | 2020-05-08 | 2020-08-25 | 江西江氨科技有限公司 | Epoxypropane refining and extracting system containing epoxypropane industrial tail gas |
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|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20171020 Termination date: 20171231 |
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| CF01 | Termination of patent right due to non-payment of annual fee |