CN203060877U - Temperature control system of negative pressure distilling device - Google Patents
Temperature control system of negative pressure distilling device Download PDFInfo
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- CN203060877U CN203060877U CN 201220720508 CN201220720508U CN203060877U CN 203060877 U CN203060877 U CN 203060877U CN 201220720508 CN201220720508 CN 201220720508 CN 201220720508 U CN201220720508 U CN 201220720508U CN 203060877 U CN203060877 U CN 203060877U
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Abstract
The utility model discloses a temperature control system of a negative pressure distilling device, belonging to the field of temperature control of molecular distilling devices. The system comprises a temperature detection comparing unit, a centre temperature control unit, a temperature regulation unit, a temperature sensor unit and an upper computer, wherein the temperature detection comparing unit is connected with the temperature sensor unit; and the centre temperature control unit is connected with the temperature detection comparing unit, the temperature regulation unit is connected with the centre temperature control unit, and the upper computer is respectively connected with the temperature detection comparing unit and the centre temperature control unit. The distilling device provided by the utility model adopts a closed loop control structure, the temperature of a knifing device of the distilling device can be controlled accurately, a distilling outflow process achieves an optimal processing condition, the distilling efficiency and the product qualification rate are greatly improved, meanwhile, the self waste of the distilling device is also effectively reduced, and the electric energy is saved.
Description
Technical field
The utility model belongs to the molecular distillation apparatus domain of control temperature, is specifically related to a kind of vacuum distillation unit temp control system.
Background technology
Molecular clock is exactly under high vacuum state, and the spacing that evaporating surface and cryosurface are set is less than or equal to the mean free path of the steam molecule of light component material.Athletic meeting aggravation after the molecule of liquid mixture is heated when molecule obtains enough energy, will become gas molecule in space from the liquid level effusion, and the molecule of overflowing from evaporating surface is run quickly with can having no to hinder and penetrated also aggegation to cryosurface.Along with the increase of liquid level top gas molecule in space, some gas will return liquid.Under external condition keeps constant situation, finally can reach the dynamic equilibrium of molecular motion, on macroscopic view, liquid system has reached balance.
The distillation efficiency of negative pressure low temperature molecular clock technology is low at present, and product percent of pass is not high, and distilling apparatus loss and energy consumption are big, and a chief reason is exactly to be difficult to the temperature of distilling apparatus is realized accurately control.Because negative pressure low temperature molecular distillation apparatus technology is higher to the temperature requirement precision, if in still-process, can't realize accurately control to the temperature of distilling apparatus blade applicator, will cause on the evaporating surface molecular motion confusions dissimilar in the purification thing, be difficult to guarantee that target purification thing molecule effectively separates, cause product percent of pass low, coarse temperature also can cause loss to parts such as distilling apparatus evaporimeters itself simultaneously, and too high temperature also can cause waste of electric energy.
Therefore, design a kind of vacuum distillation unit temp control system and improve the quality of products for the distillation industry, it is significant to reduce energy loss.
The utility model content
In order to solve in the existing negative pressure low temperature molecular clock technology because being difficult to that the blade applicator temperature of distilling apparatus is realized accurately control, can't reach optimum process condition, and then cause distillation efficiency and product percent of pass low, big to the distilling apparatus own loss simultaneously, the technical problem of waste electric energy, the utility model provides a kind of vacuum distillation unit temp control system.
The technical scheme that the utility model technical solution problem is taked is as follows:
A kind of vacuum distillation unit temp control system comprises temperature detection comparing unit, central temperature control unit, thermostat unit, temperature sensor unit and host computer, the temperature detection comparing unit is connected with the temperature sensor unit, central authorities' temperature control unit is connected with the temperature detection comparing unit, thermostat unit is connected with central temperature control unit, and host computer is connected with central temperature control unit with the temperature detection comparing unit respectively;
The temperature sensor unit sends self detected distilling apparatus knifing wall temperature value signal to the temperature detection comparing unit, the temperature detection comparing unit receives the distilling apparatus knifing wall temperature value signal that transmitted by the temperature sensor unit and compares computing with the distilling apparatus knifing wall temperature desired value of self storage, and the temperature detection comparing unit sends the temperature gap result of comparison operation to central temperature control unit; Central authorities' temperature control unit receives the temperature gap result, and from the temperature control scheme of self storing, choose optimum temperature according to this temperature gap result and control scheme, send the adjustment control command according to selected optimum temperature control scheme to thermostat unit then; Thermostat unit receives the adjustment control command and changes self temperature according to this control command;
Host computer reads the optimum control scheme data of current selected in temperature gap result data in the temperature detection comparing unit and the central temperature control unit respectively, and above-mentioned data are stored and shown; Host computer can be at any time resets the temperature control scheme of storing in the distilling apparatus knifing wall temperature desired value of storing in the temperature detection comparing unit or the central temperature control unit.
The beneficial effects of the utility model are: this vacuum distillation unit temp control system adopts closed loop controlling structure, can realize accurately control to the blade applicator temperature of distilling apparatus, make distillation outflow process reach optimum process condition, distillation efficiency and product percent of pass have not only significantly been improved, the loss of distilling apparatus to self, saves energy have also effectively been reduced simultaneously.
Description of drawings
Fig. 1 is the structured flowchart of vacuum distillation unit temp control system of the present utility model.
The specific embodiment
Below in conjunction with accompanying drawing the utility model is described in further details.
As shown in Figure 1, vacuum distillation unit temp control system of the present utility model is that the MDS-80-II scraped film type molecular distillation apparatus of and chemical engineering institute and Guangzhou great upright bio tech ltd separating and purifying technology development centre chemical with South China Science ﹠ Engineering University is control object, and its blade applicator temperature is carried out temperature control.This control system comprises temperature detection comparing unit, central temperature control unit, thermostat unit, temperature sensor unit and host computer, the temperature detection comparing unit is connected with the temperature sensor unit, central authorities' temperature control unit is connected with the temperature detection comparing unit, thermostat unit is connected with central temperature control unit, and host computer is connected with central temperature control unit with the temperature detection comparing unit respectively.The temperature detection comparing unit adopts MC430F14 development board realization temperature relatively to export control, central authorities' temperature control unit adopts the S7-300PLC of Siemens, the hot oil machine heating executive system that thermostat unit selects for use the great upright bio tech ltd in Guangzhou to make, what the temperature sensor unit adopted is PT100/PT1000 high temperature modification platinum resistance temperature sensor, and host computer adopts the IPC627C double-core Siemens industrial computer of Siemens.Temperature detection comparing unit, central temperature control unit, thermostat unit and temperature sensor unit have constituted jointly to temperature controlled closed loop configuration.
The operation principle of the utility model vacuum distillation unit temp control system is: the temperature sensor unit sends self detected distilling apparatus knifing wall temperature value signal to the temperature detection comparing unit, the temperature detection comparing unit receives the distilling apparatus knifing wall temperature value signal that transmitted by the temperature sensor unit and compares computing with the distilling apparatus knifing wall temperature desired value of self storage, and the temperature detection comparing unit sends the temperature gap result of comparison operation to central temperature control unit.Central authorities' temperature control unit receives the temperature gap result, and from the temperature control scheme of self storing, choose optimum temperature according to this temperature gap result and control scheme, send the adjustment control command according to selected optimum temperature control scheme to thermostat unit then.Thermostat unit receives the adjustment control command and changes self temperature according to this control command.Host computer reads the optimum control scheme data of current selected in temperature gap result data in the temperature detection comparing unit and the central temperature control unit respectively, and above-mentioned data are stored and shown.Host computer can be at any time resets the temperature control scheme of storing in the distilling apparatus knifing wall temperature desired value of storing in the temperature detection comparing unit or the central temperature control unit.
Claims (1)
1. vacuum distillation unit temp control system, it is characterized in that: this temperature control system comprises temperature detection comparing unit, central temperature control unit, thermostat unit, temperature sensor unit and host computer, described temperature detection comparing unit is connected with the temperature sensor unit, central authorities' temperature control unit is connected with the temperature detection comparing unit, thermostat unit is connected with central temperature control unit, and host computer is connected with central temperature control unit with the temperature detection comparing unit respectively;
Described temperature sensor unit sends self detected distilling apparatus knifing wall temperature value signal to the temperature detection comparing unit, the temperature detection comparing unit receives the distilling apparatus knifing wall temperature value signal that transmitted by the temperature sensor unit and compares computing with the distilling apparatus knifing wall temperature desired value of self storage, and the temperature detection comparing unit sends the temperature gap result of comparison operation to central temperature control unit; Central authorities' temperature control unit receives the temperature gap result, and from the temperature control scheme of self storing, choose optimum temperature according to this temperature gap result and control scheme, send the adjustment control command according to selected optimum temperature control scheme to thermostat unit then; Thermostat unit receives the adjustment control command and changes self temperature according to this control command;
Described host computer reads the optimum control scheme data of current selected in temperature gap result data in the temperature detection comparing unit and the central temperature control unit respectively, and above-mentioned data are stored and shown; Host computer can be at any time resets the temperature control scheme of storing in the distilling apparatus knifing wall temperature desired value of storing in the temperature detection comparing unit or the central temperature control unit.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220720508 CN203060877U (en) | 2012-12-24 | 2012-12-24 | Temperature control system of negative pressure distilling device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220720508 CN203060877U (en) | 2012-12-24 | 2012-12-24 | Temperature control system of negative pressure distilling device |
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| CN203060877U true CN203060877U (en) | 2013-07-17 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN 201220720508 Expired - Fee Related CN203060877U (en) | 2012-12-24 | 2012-12-24 | Temperature control system of negative pressure distilling device |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110646552A (en) * | 2019-10-23 | 2020-01-03 | 无锡市凯奥善生物医药科技有限公司 | Chromatographic column temperature control system and method |
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2012
- 2012-12-24 CN CN 201220720508 patent/CN203060877U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110646552A (en) * | 2019-10-23 | 2020-01-03 | 无锡市凯奥善生物医药科技有限公司 | Chromatographic column temperature control system and method |
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Legal Events
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| C14 | Grant of patent or utility model | ||
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| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20130717 Termination date: 20131224 |