CN204816530U - CSTR temperature compensating control system - Google Patents
CSTR temperature compensating control system Download PDFInfo
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- CN204816530U CN204816530U CN201520582655.4U CN201520582655U CN204816530U CN 204816530 U CN204816530 U CN 204816530U CN 201520582655 U CN201520582655 U CN 201520582655U CN 204816530 U CN204816530 U CN 204816530U
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Abstract
The utility model discloses a CSTR temperature compensating control system. Including reation kettle device and temperature control device, reation kettle device outside is equipped with the cooling device who is used for cooling off the inside compounding temperature of reation kettle, temperature control device's a control end and a valve way device are connected, a temperature control device and a temperature compensated equipment serial link, temperature compensated equipment with the reation kettle device is through a temperature sensor one -way connection. The utility model discloses a setting up a temperature compensated equipment in CSTR temperature control system, realizing carrying out temperature compensating to the cooling device among the temperature control system through this temperature compensated equipment, compensate cooling device's temperature response's time difference, make the temperature control system can be after receiving temperature control system 0, cooling device changes the temperature value immediately, better improvement CSTR temperature control system's quality.
Description
Technical field
The utility model belongs to a kind of stirring-type temperature of reaction kettle control field, particularly relates to a kind of CSTR function of temperature compensation control system.
Background technology
Continues stirred-tank reactor (ContinuousStirredTankReactor, CSTR) carries out various physical change and the widely used equipment of chemical reaction in Chemical Manufacture, in reaction unit, occupy critical role.In plastics, chemical fibre, the large synthetic material of synthetic rubber three are produced, the quantity of CSTR accounts for more than 90% of synthesis reactor total amount.In addition, in the industries such as pharmacy, paint, fuel, agricultural chemicals, also use in a large number.Due to the extensive use in actual production process and importance, the automatic control of CSTR is controlled the concern of skilled artisan always.
In CSTR system, most important parameter is reaction temperature, and the temperature controlled quality of CSTR directly affects product quality and output.Such as in adjudicate two cases together ethene (Polyvinylchoride, PVC) production process, due to the polymerization temperature difference 2-3 DEG C of adjacent two model polyvinyl chloride resins, this is quite high to the control overflow of polymerization temperature.If polymerization temperature exceeds certain deviation, will affect the quality of product, the serious polyvinyl chloride resin that causes makes the transition.The fluctuation of still temperature is excessive, degree of polymerization distribution can be made uneven, polyvinyl chloride resin Quality Down.If reactor moves heat may cause implode not in time, cause production accident; Move heat and too much may cause stiff still again, so polymerization process is quite strict to the requirement of reaction temperature.Measuring method in addition due to procedure parameters such as conversion ratios in chemical reaction process is very complicated, controls the effective ways that reaction temperature becomes a kind of indirect control product quality.
Because chemical reaction mechanism in CSTR is comparatively complicated, reactant (or catalyst) concentration and flow, reactor pressure, heating (or cooling) type of device, thermit powder (or cryogen) temperature and flow thereof are comparatively large on temperature controlled impact, make system itself have larger time variation, non-linear and time stickiness.Current automation field professional and technical personnel proposes multiple feasible control program, meet the basic demand of production process, but some domain of control temperature professional and technical personnel proposes multiple feasible control program, but some temperature control scheme does not give full play to the potentiality of CSTR control device and control system, in control performance, there is very large improvement space.
Dual/valve position is adopted in prior art---tandem temperature control scheme, and maintenance human-simulating PID control algolithm is controlled, although improve the Control platform of system to a certain extent, but by temperature sensor feedback on temperature controller, then order is carried out to chiller system, and then control temperature, this temperature feedback time difference can influential system Control platform to a certain extent.
Utility model content
The purpose of this utility model is for the deficiencies in the prior art, by arranging a temperature compensation means in CSTR temperature control system, solve existing reactor Heating mechanism, chuck and coiled pipe cooling device cooling principle, variations in temperature control exists delayed, affect the response speed problem of heat exchange.
For solving the problems of the technologies described above, the utility model is achieved through the following technical solutions:
The utility model is CSTR function of temperature compensation control system, comprises reactor device and temperature control equipment, and described reactor device outside is provided with the cooling device for cooling the inner mixture temperature of reactor:
The control end of described temperature control equipment is connected with a valve road device;
Described temperature control equipment and a temperature compensation means connected in series, described temperature compensation means and described reactor device are connected by a temperature sensor is unidirectional;
Described cooling device comprises a coiled pipe cooling device and a chuck cooling device, carries out temperature control by two described chuck cooling devices and described coiled pipe cooling device to described reactor device; Described chuck cooling device is by the aperture of a valve positioner, a chuck flow controller and a chuck Flux Valve Control chuck cooling water valve; Described coiled pipe cooling device is by a coiled pipe flow controller, one coiled pipe flow control valve and a flow transmitter control coiled pipe valve opening, the described coiled pipe cooling device of described cooling device carries out temperature control prior to described chuck cooling device, by chuck cooling device and coiled pipe cooling device and level control, to improve the precision of Systematical control.
Further, described temperature compensation means comprises a temperature compensation module, described temperature compensation module just described reactor unit temp value regulates ± 0.2 DEG C, by the temperature compensation module of serial on temperature control modules, to the compensation that the deviation of the temperature-responsive of chiller system responds, to improve the quality of Systematical control.
Further, described temperature control equipment is PID temperature controller.
Further, described valve road device is the pipeline that is connected with described reactor device of described cooling device and valve.
The utility model has following beneficial effect:
The utility model by arranging a temperature compensation means in CSTR temperature control system, realize carrying out temperature-compensating to the cooling device in temperature control system by this temperature compensation means, make up the time difference of the temperature-responsive of cooling device, enable temperature control system after receiving feedback signal, the temperature value of cooling device altering reactor immediately, better improves the quality of CSTR temperature control system.
Certainly, implement arbitrary product of the present utility model might not need to reach above-described all advantages simultaneously.
Accompanying drawing explanation
In order to be illustrated more clearly in the technical scheme of the utility model embodiment, be briefly described describing the required accompanying drawing used to embodiment below, apparently, accompanying drawing in the following describes is only embodiments more of the present utility model, for those of ordinary skill in the art, under the prerequisite not paying creative work, other accompanying drawing can also be obtained according to these accompanying drawings.
Fig. 1 is the structural system figure of the utility model CSTR function of temperature compensation control system;
Fig. 2 is the architecture system block diagram of the utility model CSTR function of temperature compensation control system.
Detailed description of the invention
Below in conjunction with the accompanying drawing in the utility model embodiment, be clearly and completely described the technical scheme in the utility model embodiment, obviously, described embodiment is only the utility model part embodiment, instead of whole embodiments.Based on the embodiment in the utility model, those of ordinary skill in the art are not making other embodiments all obtained under creative work prerequisite, all belong to the scope of the utility model protection.
Refer to shown in Fig. 1 and Fig. 2, the utility model is CSTR function of temperature compensation control system, comprises reactor device and temperature control equipment, and reactor device outside is provided with the cooling device for cooling the inner mixture temperature of reactor:
The control end of temperature control equipment is connected with a valve road device;
Temperature control equipment and a temperature compensation means connected in series, temperature compensation means and reactor device are connected by a temperature sensor is unidirectional;
Cooling device comprises a coiled pipe cooling device and a chuck cooling device, carries out temperature control by two chuck cooling devices and coiled pipe cooling device to reactor device; Chuck cooling device is by the aperture of a valve positioner, a chuck flow controller and a chuck Flux Valve Control chuck cooling water valve; Coiled pipe cooling device is by a coiled pipe flow controller, and a coiled pipe flow control valve and a flow transmitter control coiled pipe valve opening.
Wherein, temperature compensation means comprises a temperature compensation module, temperature compensation module just described reactor unit temp value regulates ± 0.2 DEG C, by the temperature compensation module of serial on temperature control modules, to the compensation that the deviation of the temperature-responsive of chiller system responds, to improve the quality of Systematical control.
Wherein, temperature control equipment is PID temperature controller.
Wherein, the coiled pipe cooling device of chiller system carries out temperature control prior to chuck cooling device, by chuck cooling device and coiled pipe cooling device and level control, to improve the precision of Systematical control.
Wherein, valve road device is the pipeline that is connected with reactor device of cooling device and valve.
The application process of the present embodiment is:
First, exist delayed for reactor Heating mechanism, chuck and coiled pipe cooling device cooling principle, variations in temperature control, affect the response speed of heat exchange.When there is deviation by external interference and setting value in reaction temperature, by the preset value of temperature compensation module, control temperature value is regulated in advance ± 0.2 DEG C, to eliminate the temperature-responsive time difference of cooling device, coiled pipe cooling device and chuck cooling device is controlled according to deviation again by temperature controller, Guarantee control system has transient temperature response fast, improves the quality of control system.
In same traffic situation, the heat exchange of cooling water in chuck is relatively abundant, specific discharge cooling water is greater than by the heat that chuck cooling device is taken away the heat that same traffic cooling water taken away by coiled pipe, show that chuck cooling device static characteristic is better than coiled pipe, namely cooling effectiveness is better than coiled pipe; Simultaneously for reaching identical cooling effect, in coiled pipe, cooling water consumption will be far longer than chuck, and this can increase the energy ezpenditure of cooling water supply undoubtedly, so the economy of coiled pipe cooling device in temperature control is also not as chuck.Therefore, adopt the mode that chuck cooling device and coiled pipe cooling device cool jointly, improve the Control platform of system.
Disclosed the utility model preferred embodiment just sets forth the utility model for helping above.Preferred embodiment does not have all details of detailed descriptionthe, does not limit the detailed description of the invention that this utility model is only described yet.Obviously, according to the content of this description, can make many modifications and variations.This description is chosen and is specifically described these embodiments, is to explain principle of the present utility model and practical application better, thus makes art technical staff understand well and to utilize the utility model.The utility model is only subject to the restriction of claims and four corner and equivalent.
Claims (4)
1. CSTR function of temperature compensation control system, comprises reactor device and temperature control equipment, and described reactor device outside is provided with the cooling device for cooling the inner mixture temperature of reactor, it is characterized in that:
The control end of described temperature control equipment is connected with a valve road device;
Described temperature control equipment and a temperature compensation means connected in series, described temperature compensation means and described reactor device are connected by a temperature sensor is unidirectional;
Described cooling device comprises a coiled pipe cooling device and a chuck cooling device, carries out temperature control by two described chuck cooling devices and described coiled pipe cooling device to described reactor device; Described chuck cooling device is by the aperture of a valve positioner, a chuck flow controller and a chuck Flux Valve Control chuck cooling water valve; Described coiled pipe cooling device is by a coiled pipe flow controller, and a coiled pipe flow control valve and a flow transmitter control coiled pipe valve opening.
2. CSTR function of temperature compensation control system according to claim 1, it is characterized in that, described temperature compensation means comprises a temperature compensation module, and described reactor unit temp value is regulated ± 0.2 DEG C by described temperature compensation module.
3. CSTR function of temperature compensation control system according to claim 2, is characterized in that, described temperature control equipment is PID temperature controller.
4. CSTR function of temperature compensation control system according to claim 1, is characterized in that, described valve road device is the pipeline that is connected with described reactor device of described cooling device and valve.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520582655.4U CN204816530U (en) | 2015-08-05 | 2015-08-05 | CSTR temperature compensating control system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520582655.4U CN204816530U (en) | 2015-08-05 | 2015-08-05 | CSTR temperature compensating control system |
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| Publication Number | Publication Date |
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| CN204816530U true CN204816530U (en) | 2015-12-02 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201520582655.4U Expired - Fee Related CN204816530U (en) | 2015-08-05 | 2015-08-05 | CSTR temperature compensating control system |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108786662A (en) * | 2018-06-08 | 2018-11-13 | 山东金宜善新材料有限公司 | A kind of tetrabromobisphenol A synthesis procedure adds bromine device and its control method automatically |
-
2015
- 2015-08-05 CN CN201520582655.4U patent/CN204816530U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108786662A (en) * | 2018-06-08 | 2018-11-13 | 山东金宜善新材料有限公司 | A kind of tetrabromobisphenol A synthesis procedure adds bromine device and its control method automatically |
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Legal Events
| Date | Code | Title | Description |
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| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20151202 Termination date: 20190805 |
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| CF01 | Termination of patent right due to non-payment of annual fee |