CN206418062U - Chlorohydrination system for producing expoxy propane - Google Patents
Chlorohydrination system for producing expoxy propane Download PDFInfo
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- CN206418062U CN206418062U CN201621494214.XU CN201621494214U CN206418062U CN 206418062 U CN206418062 U CN 206418062U CN 201621494214 U CN201621494214 U CN 201621494214U CN 206418062 U CN206418062 U CN 206418062U
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- condenser
- chlorohydrination
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Abstract
The utility model is related to a kind of chlorohydrination system for being used to produce expoxy propane, belong to the production and processing field of expoxy propane, chlorohydrination tower connects chloropropyl alcohol separator, chloropropyl alcohol separator connects chloropropyl alcohol surge tank, the gas outlet of chlorohydrination tower connects big caustic wash tower, recirculated water condenser before big caustic wash tower connection, the liquid outlet connection surge tank of preceding recirculated water condenser, brine condenser before gas vent connection, the liquid outlet connection surge tank of preceding brine condenser, gas vent connects discharge air separator by propylene compressor, discharge air separator connects Posterior circle water-setting device, brine condenser after the connection of Posterior circle water-setting device, the gas outlet of brine condenser connects propylene recovery tower afterwards, propylene recovery tower connects chlorohydrination tower by chloropropyl alcohol pump, the gas vent of propylene recovery tower connects small caustic wash tower.The utility model ensure that the operational reliability of system, dropped low intensity of workers, it is to avoid the wasting of resources, improves the utilization rate of resource, reduces production cost.
Description
Technical field
The utility model is related to a kind of chlorohydrination system for being used to produce expoxy propane, belongs to the production and processing of expoxy propane
Field.
Background technology
At present, the preparation of chloropropyl alcohol solution is typically that propylene, chlorine and work are passed through in chlorohydrination tower in chlorohydrination system
Skill water is reacted, but when being reacted again due to the control accuracy of propylene, chlorine and process water the problem of, it will usually
There is excessive gas to produce, if excess air is expelled directly out, can not only cause the waste of resource, can also increase system operation
Production cost, therefore, enterprise are increased economic efficiency to reduce cost, by that can connect gas at the gas outlet of chlorohydrination tower
Body adsorption plant, carries out the recycling of gas, but needs excessive artificial participation, adds somewhat to staff
Labor intensity.
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, can be prevented effectively from the wasting of resources, reduces production cost, improves production efficiency, it is ensured that system safe and reliable operation
Chlorohydrination system for producing expoxy propane.
The utility model solves the technical scheme that its technical problem used：
The described chlorohydrination system for being used to produce expoxy propane, including chlorohydrination tower, the outlet connection chlorine of chlorohydrination tower
Propyl alcohol separator, chloropropyl alcohol separator connection chloropropyl alcohol surge tank, the top gas outlet of chlorohydrination tower connects big caustic wash tower, big alkali
Wash recirculated water condenser before tower connection, the liquid outlet connection surge tank of preceding recirculated water condenser, the gas vent of preceding recirculated water condenser
Brine condenser before connection, the liquid outlet connection surge tank of preceding brine condenser, the gas vent of preceding brine condenser passes through
Propylene compressor connects discharge air separator, discharge air separator connection Posterior circle water-setting device, salt water cooling after the connection of Posterior circle water-setting device
The liquid outlet of condenser, Posterior circle water-setting device and rear brine condenser is all connected with surge tank, the gas outlet connection of rear brine condenser
Propylene recovery tower, propylene recovery tower connects chlorohydrination tower by chloropropyl alcohol pump, and the gas vent of propylene recovery tower connects small alkali cleaning
Tower, small caustic wash tower connects alkali liquid tank.
The secondary utilization of excessive gas can be realized for producing the chlorohydrination system of expoxy propane, resource is effectively prevent
Waste, not only reduce the production cost of chloropropyl alcohol, also improve the production efficiency of chloropropyl alcohol, with stronger practicality,
Whole process can pass through control system control and complete, it is to avoid excessive artificial participation, reduce the work of staff
Intensity, it is simple in construction, it is reasonable in design.
It is further preferred, pressure sensor, third are set on the outlet pipe of preceding brine condenser and rear brine condenser
Pressure sensor, pressure sensor connection control system are provided with the inlet ductwork and export pipeline of alkene compressor.Pressure
Pressure in sensor real-time monitoring tubular road, according to the operation conditions of system, gas flow is regulated and controled by control system, system is reduced
Pressure oscillation, it is ensured that the safety in production of chlorohydrination system, it is ensured that system safe and reliable operation.
Further preferred, big caustic wash tower connects alkali liquid tank by NaOH solution circulating pump.Facilitate recycling for alkali lye.
The utility model is had an advantageous effect in that：
1st, the chlorohydrination system architecture described in the utility model for being used to produce expoxy propane is simple, reasonable in design, passes through
The cooperation of caustic wash tower and propylene recovery tower, is not only able to ensure the recycling of excess basic gas, moreover it is possible to carry out chloropropyl alcohol molten
The secondary generation of liquid, not only avoids the waste of resource, also improves the production efficiency of chloropropyl alcohol, reduces production cost, tool
There is stronger practicality.
2nd, the chlorohydrination system described in the utility model for being used to produce expoxy propane is fully sharp when propylene recovery is utilized
With the cooperation of propylene compressor and pressure sensor, by detecting the pressure differential of propylene compressor inlet and outlet, regulate and control gas
The flow of body, so as to control the pressure of whole system, whole process is completed by control system, not only reduces staff's labor
Fatigue resistance, additionally it is possible to ensure the operational reliability of system.
Brief description of the drawings
Fig. 1 is structural representation of the present utility model；
Wherein, 1, chlorohydrination tower；2nd, chloropropyl alcohol separator；3rd, big caustic wash tower；4th, small caustic wash tower；5th, NaOH solution circulating pump；6、
Alkali liquid tank；7th, chloropropyl alcohol surge tank；8th, chloropropyl alcohol pump；9th, propylene recovery tower；10th, Posterior circle water-setting device；11st, surge tank；12nd, arrange
Gas separating device；13rd, propylene compressor；14th, preceding brine condenser；15th, preceding recirculated water condenser；16th, rear brine condenser.
Embodiment
Embodiment of the present utility model is described further below in conjunction with the accompanying drawings：
As shown in figure 1, the chlorohydrination system described in the utility model for being used to produce expoxy propane, including chlorohydrination tower 1,
The outlet connection chloropropyl alcohol separator 2 of chlorohydrination tower 1, the connection chloropropyl alcohol of chloropropyl alcohol separator 2 surge tank 7, chloropropyl alcohol separator 2
Big caustic wash tower 3 is all connected with the gas outlet of chloropropyl alcohol surge tank 7, the top gas outlet of chlorohydrination tower 1 connects big caustic wash tower 3, greatly
Caustic wash tower 3 connects alkali liquid tank 6 by NaOH solution circulating pump 5, and recirculated water condenser 15 before the gas vent connection of big caustic wash tower 3 is preceding to follow
The liquid outlet connection surge tank 11 of ring water-setting device 15, brine condenser 14 before the gas vent connection of preceding recirculated water condenser 15,
The liquid outlet connection surge tank 11 of preceding brine condenser 14, the gas vent of preceding brine condenser 14 passes through propylene compressor 13
Discharge air separator 12 is connected, discharge air separator 12 connects propylene compressor 13 and Posterior circle water-setting device 10 by threeway respectively, after
The liquid outlet of brine condenser 16 after recirculated water condenser 10 is connected, Posterior circle water-setting device 10 and rear brine condenser 16 is all connected with delaying
Rush tank 11, the gas vent connection propylene compressor 13 of surge tank 11, the gas outlet connection propylene recovery of rear brine condenser 16
Tower 9, propylene recovery tower 9 connects chlorohydrination tower 1 by chloropropyl alcohol pump 8, and the gas vent of propylene recovery tower 9 connects small caustic wash tower 4,
Small caustic wash tower 4 connects alkali liquid tank 6.
Pressure sensor, propylene pressure are set on described preceding brine condenser 14 and the outlet pipe of rear brine condenser 16
Pressure sensor, pressure sensor connection control system are provided with the inlet ductwork and export pipeline of contracting machine 13.
Operation principle of the present utility model and use process：
Operationally, propylene, chlorine and process water are passed into for the described chlorohydrination system for producing expoxy propane
In chlorohydrination tower 1, after chemical reaction obtains chloropropyl alcohol solution, and excessive propylene and inert gas (recyclegas) pass through exhaust
Pipeline enters in big caustic wash tower 3, obtains chloropropyl alcohol solution and is entered by chloropropyl alcohol separator 2 in chloropropyl alcohol surge tank 7, while chlorine
Gas in propyl alcohol separator 2 and chloropropyl alcohol surge tank 7 also passes through gas exhaust piping and entered in big caustic wash tower 3, passes through big caustic wash tower 3
The sour gas in recyclegas is removed, while alkali lye is recycled in the effect of alkali liquid tank 6 and NaOH solution circulating pump 5.It is logical
Recyclegas after the excessive alkali cleaning of caustic wash tower 3 enters preceding recirculated water condenser 15, in the presence of preceding recirculated water condenser 15, condensate liquid
Body enters surge tank 11, and uncooled recyclegas enters preceding brine condenser 14, cold in the presence of preceding brine condenser 14
Lime set body enters surge tank 11, and uncooled recyclegas enters propylene compressor 13, and the gas after overcompression is by exhaust
Uncooled circulating air in Posterior circle water-setting device 10 and propylene compressor 13, Posterior circle water-setting device 10 is respectively enterd after separator 12
Body enters rear brine condenser 16, and the condensed fluid of Posterior circle water-setting device 10 and rear brine condenser 16 enters surge tank 11, after
Uncooled recyclegas enters in propylene recovery tower 9, propylene recovery tower 9 in brine condenser 16 is passed through process water and phase in advance
The chlorine answered and circulation solid/liquid/gas reactions, generate chloropropyl alcohol solution, chloropropyl alcohol solution is squeezed into chlorohydrination tower 1 by chloropropyl alcohol pump 8, react
Remaining gas enters in small caustic wash tower 4, emptied after alkali cleaning.
The utility model is simple in construction, reasonable in design, can avoid the waste of resource, improves the production effect of chloropropyl alcohol
Rate, reduces production cost, and whole process is completed by control system, reduces the labor intensity of staff, it is ensured that be
The operational reliability of system, 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 (3)
1. a kind of chlorohydrination system for being used to produce expoxy propane, it is characterised in that：Including chlorohydrination tower (1), chlorohydrination tower (1)
Outlet connection chloropropyl alcohol separator (2), chloropropyl alcohol separator (2) connection chloropropyl alcohol surge tank (7), the top of chlorohydrination tower (1)
Portion gas outlet connects big caustic wash tower (3), recirculated water condenser (15), the liquid of preceding recirculated water condenser (15) before big caustic wash tower (3) connection
Body outlet connection surge tank (11), brine condenser (14), preceding salt water cooling before the gas vent connection of preceding recirculated water condenser (15)
The liquid outlet connection surge tank (11) of condenser (14), the gas vent of preceding brine condenser (14) passes through propylene compressor (13)
Connect discharge air separator (12), discharge air separator (12) connection Posterior circle water-setting device (10), after Posterior circle water-setting device (10) connection
The liquid outlet of brine condenser (16), Posterior circle water-setting device (10) and rear brine condenser (16) is all connected with surge tank (11), after
The gas outlet connection propylene recovery tower (9) of brine condenser (16), propylene recovery tower (9) connects chloropharin by chloropropyl alcohol pump (8)
Change tower (1), the gas vent of propylene recovery tower (9) connects small caustic wash tower (4), small caustic wash tower (4) connection alkali liquid tank (6).
2. the chlorohydrination system according to claim 1 for being used to produce expoxy propane, it is characterised in that：Described preceding salt solution
Pressure sensor, the inlet tube of propylene compressor (13) are set on the outlet pipe of condenser (14) and rear brine condenser (16)
Pressure sensor, pressure sensor connection control system are provided with road and export pipeline.
3. the chlorohydrination system according to claim 1 for being used to produce expoxy propane, it is characterised in that：Described big alkali cleaning
Tower (3) connects alkali liquid tank (6) by NaOH solution circulating pump (5).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201621494214.XU CN206418062U (en) | 2016-12-31 | 2016-12-31 | Chlorohydrination system for producing expoxy propane |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201621494214.XU CN206418062U (en) | 2016-12-31 | 2016-12-31 | Chlorohydrination system for producing expoxy propane |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN206418062U true CN206418062U (en) | 2017-08-18 |
Family
ID=59573637
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201621494214.XU Expired - Fee Related CN206418062U (en) | 2016-12-31 | 2016-12-31 | Chlorohydrination system for producing expoxy propane |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN206418062U (en) |
-
2016
- 2016-12-31 CN CN201621494214.XU patent/CN206418062U/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: 20170818 Termination date: 20171231 |