CN206543424U - A kind of condensed in two stages device of benzene distillation system - Google Patents
A kind of condensed in two stages device of benzene distillation system Download PDFInfo
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- CN206543424U CN206543424U CN201720261224.7U CN201720261224U CN206543424U CN 206543424 U CN206543424 U CN 206543424U CN 201720261224 U CN201720261224 U CN 201720261224U CN 206543424 U CN206543424 U CN 206543424U
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- cooling
- water
- water tank
- benzene
- distillation
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Abstract
The utility model discloses a kind of condensed in two stages device of benzene distillation system, belong to benzene distillation technical field.It includes being sequentially connected with first-stage condenser, secondary condenser by distillation pipeline at the top of distillation still, distillation pipeline, first-stage condenser, secondary condenser, cold water tank, water pump, the distillation still；The water inlet end of the first-stage condenser is connected by water pump with the outlet pipe of cold water tank, and the water side of first-stage condenser is connected with the water inlet pipe of cold water tank, forms one-level cooling circuit；The secondary condenser is passed through normal temperature circulation cooling water, forms two grades of cooling circuits.Using 5.5~10 DEG C after cooling of cooling water as the cooling medium of first-stage condenser, the fusing point of benzene is 5.5 DEG C, so benzene can be liquefied to greatest extent, and will not produce solidification causes distillation pipeline to block；Secondary condenser further can liquefy the benzene overflowed on a small quantity from first-stage condenser, reduce the loss of benzene.
Description
Technical field
The utility model is related to a kind of condensed in two stages device of benzene distillation system, belongs to benzene distillation technical field.
Background technology
Due to the characteristic of benzene（Volatile, 5.5 DEG C of fusing point, 80.1 DEG C of boiling point）, in benzene concentration still-process, part
Benzene can together evaporate with other materials, cause the production loss of benzene.At this moment need to set cold on the pipeline on distillation still top
Condenser, allows benzene liquefaction to flow back, reduces the loss of benzene.At present, cooling medium is done using recirculated water to cross after condensed in two stages device, or meeting
The benzene of loss 20~30%；And cooling medium is done using chilled brine, solidification can occur within the condenser existing because temperature is too low
As blocking distillation pipeline, causing pressure in distillation still excessive, produce dangerous.
The content of the invention
Technical problem to be solved in the utility model is：A kind of condensed in two stages device of benzene distillation system is provided, it is solved
In benzene of having determined concentration still-process, part benzene can together evaporate with other materials, the problem of causing the production loss of benzene.
Technical problem to be solved in the utility model takes following technical scheme to realize：
A kind of condensed in two stages device of benzene distillation system, it includes distillation still, distillation pipeline, first-stage condenser, B-grade condensation
First-stage condenser, secondary condenser are sequentially connected with by distillation pipeline at the top of device, cold water tank, water pump, the distillation still；
The cold water tank includes water tank and shell body, and shell body is wrapped on the outside of water tank, formed between the two
Cool down and water inlet pipe be provided with the top of cavity, water tank, bottom is provided with outlet pipe, cooling cavity bottom is provided with chilled brine water inlet pipe,
Top is provided with chilled brine outlet pipe；
Circulating frozen salt solution is passed through in the cooling cavity, chilled brine circulation loop is formed；
The water inlet end of the first-stage condenser is connected by water pump with the outlet pipe of cold water tank, the water side of first-stage condenser
Connected with the water inlet pipe of cold water tank, form one-level cooling circuit；
The secondary condenser is passed through normal temperature circulation cooling water, forms two grades of cooling circuits.
As preferred embodiment, the cooling cavity of the cold water tank is passed through circulating frozen salt solution so that the water outlet in water tank
Temperature is maintained at 5.5~10 DEG C.
The beneficial effects of the utility model are：The cooling water of normal temperature is passed through water tank, and uses chilled brine as cold
But medium, 5.5~10 DEG C are maintained at by the leaving water temperature of cooling water in water tank, then the cooling water after cooling is cold as one-level
The cooling medium of condenser, first-stage condenser chilling temperature is between 5.5~10 DEG C, and the fusing point of benzene is 5.5 DEG C, so benzene can be most
Limits are liquefied, and will not to produce solidification cause distillation pipeline to block；Normal temperature cooling water is used as the cold of secondary condenser
But medium, the benzene liquefaction that secondary condenser will further can overflow from first-stage condenser on a small quantity, further reduces the loss of benzene, two
Level condenser uses normal temperature cooling water, energy-conserving and environment-protective；Condensed in two stages device can be by the damage control of benzene below 7%.
Brief description of the drawings
Fig. 1 is structural representation of the present utility model；
Fig. 2 is the structural representation of cold water tank in the utility model.
In figure：Distillation still 1, distillation pipeline 2, first-stage condenser 3, secondary condenser 4, cold water tank 5, water pump 6, water tank
51, shell body 52 cools down cavity 53, water inlet pipe 54, outlet pipe 55, chilled brine water inlet pipe 56, chilled brine outlet pipe 57.
Embodiment
In order to be easy to understand to technological means of the present utility model, creation characteristic, reached purpose and effect, tie below
Conjunction is specifically illustrating, and the utility model is expanded on further.
As Figure 1-Figure 2, a kind of condensed in two stages device of benzene distillation system, it includes distillation still 1, distillation pipeline 2, one-level
Condenser 3, secondary condenser 4, cold water tank 5, water pump 6, the top of distillation still 1 are sequentially connected with first-stage condenser by distillation pipeline 2
3rd, secondary condenser 4；
Cold water tank 5 includes water tank 51 and shell body 52, and shell body 52 is wrapped on the outside of water tank 51, between the two
Cooling cavity 53 is formed, the top of water tank 51 is provided with water inlet pipe 54, and bottom is provided with outlet pipe 55, and cooling cavity 53 bottom is provided with cold
Freeze salt solution water inlet pipe 56, top is provided with chilled brine outlet pipe 57；
Circulating frozen salt solution is passed through in cooling cavity 53, chilled brine circulation loop is formed；
The water inlet end of first-stage condenser 3 is connected by water pump 6 with the outlet pipe of cold water tank 5, the water side of first-stage condenser 3
Connected with the water inlet pipe of cold water tank 5, form one-level cooling circuit；
Secondary condenser 4 is passed through normal temperature circulation cooling water, forms two grades of cooling circuits.
The cooling cavity 53 of cold water tank 5 is passed through circulating frozen salt solution so that the leaving water temperature in water tank 51 is maintained at 5.5
~10 DEG C.
The cooling water of normal temperature is passed through water tank 51, and uses chilled brine as cooling medium, will be cold in water tank 51
But the leaving water temperature of water is maintained at 5.5~10 DEG C, then using the cooling water after cooling as first-stage condenser 3 cooling medium, one
The level chilling temperature of condenser 3 is between 5.5~10 DEG C, and the fusing point of benzene is 5.5 DEG C, so benzene can obtain liquid to greatest extent
Change, and will not produce solidification causes distillation pipeline 2 to block；Normal temperature cooling water is as the cooling medium of secondary condenser 4, and two grades cold
Condenser 4 further can liquefy the benzene overflowed on a small quantity from first-stage condenser 3, further reduce the loss of benzene, and secondary condenser 4
Use normal temperature cooling water, energy-conserving and environment-protective；Condensed in two stages device can be by the damage control of benzene below 7%.
General principle of the present utility model and principal character and advantage of the present utility model has been shown and described above.One's own profession
The technical staff of industry it should be appreciated that the utility model is not restricted to the described embodiments, do not depart from the utility model spirit and
On the premise of scope, the utility model also has various changes and modifications, and these changes and improvements both fall within the utility model will
In the range of asking protection.Scope is claimed by appended claims and its equivalent thereof in the utility model.
Claims (2)
1. a kind of condensed in two stages device of benzene distillation system, it is characterised in that：It include distillation still, distillation pipeline, first-stage condenser,
First-stage condenser, B-grade condensation are sequentially connected with by distillation pipeline at the top of secondary condenser, cold water tank, water pump, the distillation still
Device；
The cold water tank includes water tank and shell body, and shell body is wrapped on the outside of water tank, forms cooling between the two
Water inlet pipe is provided with the top of cavity, water tank, bottom is provided with outlet pipe, and cooling cavity bottom is provided with chilled brine water inlet pipe, top
Provided with chilled brine outlet pipe；
Circulating frozen salt solution is passed through in the cooling cavity, chilled brine circulation loop is formed；
The water inlet end of the first-stage condenser is connected by water pump with the outlet pipe of cold water tank, the water side of first-stage condenser with it is cold
The water inlet pipe connection of water pot, forms one-level cooling circuit；
The secondary condenser is passed through normal temperature circulation cooling water, forms two grades of cooling circuits.
2. a kind of condensed in two stages device of benzene distillation system according to claim 1, it is characterised in that：The cooling of the cold water tank
Cavity is passed through circulating frozen salt solution so that the leaving water temperature in water tank is maintained at 5.5~10 DEG C.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720261224.7U CN206543424U (en) | 2017-03-17 | 2017-03-17 | A kind of condensed in two stages device of benzene distillation system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720261224.7U CN206543424U (en) | 2017-03-17 | 2017-03-17 | A kind of condensed in two stages device of benzene distillation system |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN206543424U true CN206543424U (en) | 2017-10-10 |
Family
ID=59996060
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201720261224.7U Expired - Fee Related CN206543424U (en) | 2017-03-17 | 2017-03-17 | A kind of condensed in two stages device of benzene distillation system |
Country Status (1)
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| CN (1) | CN206543424U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110452096A (en) * | 2019-08-13 | 2019-11-15 | 上海万巷制药有限公司 | A kind of phenol refining system and the phenol refining technique with the system |
-
2017
- 2017-03-17 CN CN201720261224.7U patent/CN206543424U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110452096A (en) * | 2019-08-13 | 2019-11-15 | 上海万巷制药有限公司 | A kind of phenol refining system and the phenol refining technique with the system |
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| 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: 20171010 |