CN205759793U - A kind of Nitrobenzene Rectification system - Google Patents
A kind of Nitrobenzene Rectification system Download PDFInfo
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- CN205759793U CN205759793U CN201620493710.7U CN201620493710U CN205759793U CN 205759793 U CN205759793 U CN 205759793U CN 201620493710 U CN201620493710 U CN 201620493710U CN 205759793 U CN205759793 U CN 205759793U
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Abstract
This utility model relates to a kind of equipment technical field producing Nitrobenzol, specifically a kind of Nitrobenzene Rectification system, including rectifying column, reboiler, condenser and Nitrobenzol finished pot, also include attemperating unit and chiller, chiller includes cooler and little tank, cooler is arranged on below condenser, and cooler is connected with little tank by circulating line；Attemperating unit includes temperature sensor, wireless signal transmitter, wireless signal receiver and controller, described temperature sensor is arranged on rectifying column internal upper part, and it is positioned at below cooler, wireless signal receiver is connected with controller by circuit, controller is connected with water pump by circuit, and water pump and controller are connected with power supply by circuit respectively.This utility model has and can automatically regulate and control the top area temperature of rectifying column, prevents condenser recirculated water from repeatedly regulating, it is to avoid the feature of Biased flow phenomenon.
Description
Technical field
This utility model relates to a kind of equipment technical field producing Nitrobenzol, specifically a kind of Nitrobenzene Rectification system.
Background technology
Nitrobenzol is a kind of conventional industrial chemicals, and distillation system is an important system in Nitrobenzol production line, is steamed by light component Nitrobenzol by rectification cell operation, and condensed Nitrobenzol becomes final products, and heavy constituent is as tar processing.
Traditional distillation system is mainly made up of rectifying column, reboiler and condenser, is provided with filler in rectifying column, and reboiler is arranged on outside rectifier bottoms, and reboiler steam heats.Condenser is arranged on the top of rectifying column, and condenser top is connected with Nitrobenzol finished pot by pipeline.In production process, after slightly evaporating, Nitrobenzol temperature is at about 120 DEG C, enter rectifying column packing section top, in shower nozzle is evenly distributed to packing layer, liquid is from top to bottom, with the exchange that the gas contrary stream heated by bottom reboiler carries out heat and matter, due to reboiler effect, when the temperature within rectifying column reaches 160 DEG C, Nitrobenzol is distilled out of, enter the condenser at rectifying column top, gas temperature is down to about 110 DEG C, in addition to partial condensation liquid refluxes, after the condensation of remaining Nitrobenzol gas condensed device, enter finished pot, become final products.
Generally condenser is built-in, i.e. condenser is directly installed on the top of rectifying column, and condenser uses circulating water pipeline p-nitrophenyl gas to condense, owing to the recirculated water storage capacity in condenser is big, control and the temperature of the top of regulation rectifying column and condenser is the most slow, cause thermotonus the most delayed, thus bring recirculated water bias current or equipment scaling phenomenon, make device temperature uneven, the situation of cold side heat on one side occurs, cause condensation uneven, backflow bias current, affect rectification effect.
Summary of the invention
The top area temperature of rectifying column a kind of can automatically be regulated and controled by this utility model in order to overcome drawbacks described above to provide, and prevents condenser recirculated water from repeatedly regulating, it is to avoid the Nitrobenzene Rectification system of Biased flow phenomenon.
The technical solution adopted in the utility model is: a kind of Nitrobenzene Rectification system, including rectifying column, reboiler, condenser and Nitrobenzol finished pot, reboiler is arranged on rectifying column lower outside, condenser is arranged on rectifying column top, condenser top is connected with Nitrobenzol finished pot by pipeline, it is characterized in that: also include attemperating unit and chiller, chiller includes cooler and little tank, cooler is arranged on below condenser, cooler is connected with little tank by circulating line, and circulating line is provided with water pump；Attemperating unit includes temperature sensor, wireless signal transmitter, wireless signal receiver and controller, described temperature sensor is arranged on rectifying column internal upper part, and it is positioned at below cooler, temperature sensor is connected with wireless signal transmitter by circuit, wireless signal transmitter and wireless signal receiver are wireless connections, wireless signal receiver is connected with controller by circuit, and controller is connected with water pump by circuit, and water pump and controller are connected with power supply by circuit respectively.
This utility model adds attemperating unit and chiller in distillation system, cooler in chiller is positioned at the lower section of condenser, this region is carried out temperature adjusting, below cooler, it is provided with temperature sensor and wireless signal transmitter simultaneously, the temperature of condenser near zone is monitored in temperature sensor in real time, and data are sent to controller by wireless signal transmitter and wireless signal receiver, controller is according to the startup of the water pump in Data Control chiller and cut out, thus control the operation of chiller, realize the pre-adjustment to condenser regional temperature, avoid the big reflection of condenser quantity of circulating water delayed, cannot regulate the most in time, avoid condenser bias current or scale formation simultaneously, cause condensation uneven, the harmful effects such as backflow bias current.Temperature adjusting of the present utility model is without manual operation, and automaticity is high.
Accompanying drawing explanation
Fig. 1 is schematic diagram of the present utility model.
Detailed description of the invention
In conjunction with accompanying drawing, this utility model is further described, accompanying drawing is a kind of embodiment of the present utility model, including rectifying column 1, reboiler 2, condenser 3 and Nitrobenzol finished pot 4, reboiler 2 is arranged on rectifying column 1 lower outside, reboiler 2 heats with steam, condenser 3 is arranged on rectifying column 1 top, and both are through, and condenser 3 top is connected with Nitrobenzol finished pot 4 by pipeline.In this utility model, also including attemperating unit and chiller, chiller includes cooler 5 and little tank 6, and the little tank 6 in chiller is two independent tanks with the tank of condenser 3.Cooler 5 is arranged on below condenser 3, cooler 5 is connected with little tank 6 by circulating line, water pump 7 it is provided with on circulating line, by being turned on and off water pump 7, it is achieved the temperature in rectifying column 1 top and condenser 3 region is regulated by cooler 5, and this device can prevent condenser 3 too high or too low for temperature and affect rectification effect, also it is avoided that condenser 3 is big because of quantity of circulating water, temperature regulation reflection is delayed, occurs that condenser 3 bias current or fouling, impact produce.
Attemperating unit includes temperature sensor 8, wireless signal transmitter, wireless signal receiver and controller, described temperature sensor 8 is arranged on rectifying column 1 internal upper part, and it is positioned at below cooler 5, temperature sensor 8 is connected with wireless signal transmitter by circuit, and typical temperature sensor 8 and wireless signal transmitter are fabricated to one.Wireless signal receiver is connected with controller by circuit, generally wireless signal receiver is formed integrally with controller, wireless signal transmitter and wireless signal receiver are wireless connections, wireless signal receiver and controller may be mounted at the control panel region of equipment, can also being arranged on the support body of rectifying column 1 bottom, just may be used in the range of the wireless connections of wireless signal transmitter as long as meeting wireless signal receiver.Controller is connected with water pump 7 by circuit, and water pump 7 and controller are connected with power supply by circuit respectively, according to the needs of technique, arrange a preset temperature range the most in the controller, carry out data for controller and compare.
During use, the temperature of condenser 3 near zone is monitored in temperature sensor 8 in real time, and data are sent to controller by wireless signal transmitter and wireless signal receiver, these data are compared by controller with preset temperature, then control water pump 7 to be turned on and off, thus control the time that cooler 5 runs, it is achieved rectifying column 1 top and condenser 3 region are carried out temperature adjusting.Described regulation and control are without manual operation, and automaticity is high.
This utility model has and can automatically regulate and control the top area temperature of rectifying column, prevents condenser recirculated water from repeatedly regulating, it is to avoid the feature of Biased flow phenomenon.
Claims (1)
1. a Nitrobenzene Rectification system, including rectifying column, reboiler, condenser and Nitrobenzol finished pot, reboiler is arranged on rectifying column lower outside, condenser is arranged on rectifying column top, and condenser top is connected with Nitrobenzol finished pot by pipeline, it is characterized in that: also include attemperating unit and chiller, chiller includes cooler and little tank, cooler is arranged on below condenser, and cooler is connected with little tank by circulating line, and circulating line is provided with water pump；Attemperating unit includes temperature sensor, wireless signal transmitter, wireless signal receiver and controller, described temperature sensor is arranged on rectifying column internal upper part, and it is positioned at below cooler, temperature sensor is connected with wireless signal transmitter by circuit, wireless signal transmitter and wireless signal receiver are wireless connections, wireless signal receiver is connected with controller by circuit, and controller is connected with water pump by circuit, and water pump and controller are connected with power supply by circuit respectively.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620493710.7U CN205759793U (en) | 2016-05-27 | 2016-05-27 | A kind of Nitrobenzene Rectification system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620493710.7U CN205759793U (en) | 2016-05-27 | 2016-05-27 | A kind of Nitrobenzene Rectification system |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN205759793U true CN205759793U (en) | 2016-12-07 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201620493710.7U Active CN205759793U (en) | 2016-05-27 | 2016-05-27 | A kind of Nitrobenzene Rectification system |
Country Status (1)
| Country | Link |
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| CN (1) | CN205759793U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108003929A (en) * | 2017-12-18 | 2018-05-08 | 金冬梅 | A kind of heavy benzene hydrogenation process for refining |
| CN108441259A (en) * | 2018-04-13 | 2018-08-24 | 金冬梅 | A kind of heavy benzene hydrogenation process for purification |
-
2016
- 2016-05-27 CN CN201620493710.7U patent/CN205759793U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108003929A (en) * | 2017-12-18 | 2018-05-08 | 金冬梅 | A kind of heavy benzene hydrogenation process for refining |
| CN108441259A (en) * | 2018-04-13 | 2018-08-24 | 金冬梅 | A kind of heavy benzene hydrogenation process for purification |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| TR01 | Transfer of patent right | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20210415 Address after: Room 2304, 1200 Pudong Avenue, Pudong New Area Free Trade Pilot Area, Shanghai Patentee after: SENNICS Co.,Ltd. Address before: 271411, Tai'an County, Shandong province Ningyang county kiln economic and Technological Development Zone Patentee before: SHANDONG HUAHONG CHEMICAL Co.,Ltd. |