CN102722195B - Granulating water temperature control system and method for granulator - Google Patents
Granulating water temperature control system and method for granulator Download PDFInfo
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- CN102722195B CN102722195B CN201210222072.1A CN201210222072A CN102722195B CN 102722195 B CN102722195 B CN 102722195B CN 201210222072 A CN201210222072 A CN 201210222072A CN 102722195 B CN102722195 B CN 102722195B
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Abstract
The invention discloses a granulating water temperature control system and a granulating water temperature control method for a granulator. The granulating water temperature control system comprises a granulator, a circulating pump, a cooler, a cooling water control valve, a first control module, a first temperature transmitter, a second control module and a second temperature transmitter, wherein the second control module is a master controller; and the first control module is a slave controller, cascade control over the first control module can be realized by the second control module, an output value of the first control module is taken as a set value of the second control module, and the opening of the cooling water valve is adjusted through an output value of the second control module. By the granulating water temperature control system and the granulating water temperature control method for the granulator, the granulating water temperature of the granulator can be timely controlled, so that the granulating requirements can be met, and the conditions that the quality is reduced and the equipment is damaged because the granulating water temperature is raised due to uncompleted adjustment of field personnel are avoided.
Description
Technical field
The present invention relates to the temperature control technology field of polyester device pelleter, particularly a kind of pelleter pelletizing coolant-temperature gage control system and method.
Background technology
In existing polyester device pelleter equipment, in order to guarantee pelletizing quality, pelletizing coolant-temperature gage is preferably controlled within the specific limits, as bad in the control of pelletizing coolant-temperature gage, and pelletizing quality is had a significant impact, and even can cause pelleter device damage.
Existing pelleter pelletizing coolant-temperature gage control system adopts single control module control pelletizing coolant-temperature gage; in the time occurring that larger variation occurs pelletizing amount; because the setting value of single control module can not become; can cause cooled actual pelletizing coolant-temperature gage to change; at this time often need to adjust pelletizing coolant-temperature gage by revising pelleter return water temperature control module setting value, or the moving chilled water modulation valve aperture of controlling of hired roughneck realizes adjustment pelletizing coolant-temperature gage.
In addition, in the time of pelleter waste discharge, because heat reduces, when larger variation occurs pelleter return water temperature, generally make temperature get back to control module setting value by regulating cooling water valve to reduce cold; But; in the time recovering pelletizing or increase pelleter; pelletizing water increases by plate change of current amount; cause pelletizing coolant-temperature gage to raise fast; interfere as beaten not in time manual adjustments cooling water valve, pelletizing coolant-temperature gage can rise to more than 45 ℃, because waste discharge binder amount is large, water temperature is high; probably cause the also waste discharge of other pelleter, or stop up chips transfer line road.
Summary of the invention
The object of the invention is to existing pelletizing coolant-temperature gage control system to improve, realize the automatic control to pelletizing coolant-temperature gage, avoid the too high generation waste material of pelletizing coolant-temperature gage or granulate equipment is caused to damage.
In order to realize foregoing invention object, the technical solution used in the present invention is as follows:
A kind of pelleter pelletizing coolant-temperature gage control system, is characterized in that, comprising: pelleter, ebullator, refrigeratory, cooling water control valve, the first control module, the first temperature transmitter, the second control module, the second temperature transmitter, wherein,
Described pelleter, ebullator, refrigeratory pipeline communication;
Described cooling water control valve is arranged on refrigeratory cooling water inlet pipeline;
Described the first temperature transmitter is connected with pelleter pelletizing water water return pipeline; Described the second temperature transmitter is connected with refrigeratory pelletizing water outlet conduit;
Described the first control module is used for controlling described cooling water control valve opening; Described the second control module is used for controlling the first control module.
Further, in above-mentioned pelleter pelletizing coolant-temperature gage control system, described the second control module is master controller, and described the first control module is submaster controller, by second control module tandem control the first control module.
Further, in above-mentioned pelleter pelletizing coolant-temperature gage control system, described the first control module and the second control module all adopt DCS module.
Further, in above-mentioned pelleter pelletizing coolant-temperature gage control system, described the first control module is preferably used TIC-X315 module, and described the first temperature transmitter preferably uses TT-X315 temperature transmitter; Described the second control module is preferably used TIC-X314 module, and described the first temperature transmitter preferably uses TT-X314 temperature transmitter; Described cooling water control valve preferably uses TV-X315 operation valve.
The present invention also provides the method for utilizing above-mentioned pelleter pelletizing coolant-temperature gage control system control pelleter pelletizing coolant-temperature gage; it is characterized in that; described the second control module is master controller; described the first control module is submaster controller; by second control module tandem control the first control module; the output valve of the second control module is as the setting value of the first control module, and then regulates cooling water valve aperture by the output valve of the first control module, specifically comprises the steps:
Step 1: default the second control module desired temperature is T;
Step 2: the second temperature transmitter detects refrigeratory pelletizing water output water temperature T1, and sends a signal to the second control module;
Step 3: the second control module judges whether T1 meets the requirement of setting value; If so, system is normal, if not, and output signal;
Step 4: the first control module receives the second control module output valve, and automatically regulate setting value;
Step 5: the first control module is calculated rear output signal and sends instruction according to the setting value after regulating, controls cooling water control valve valve opening;
Step 6: chilled water inflow changes, and the pelletizing water leaving water temperature cooling through refrigeratory meets pelletizing requirement.
As technique scheme preferably, in above-mentioned pelleter pelletizing coolant-temperature gage control method, the setting value of described the second control module is 33 ℃, 34 ℃ or 35 ℃.
Use pelleter pelletizing coolant-temperature gage control system provided by the invention and method; can control in time pelleter pelletizing coolant-temperature gage; make it meet pelletizing requirement, avoid adjusting the situation that causes the rising of pelletizing coolant-temperature gage to cause Quality Down and device damage not in place because of field personnel.
Accompanying drawing explanation
Fig. 1 is former pelletizing coolant-temperature gage control system schematic diagram;
Fig. 2 is the improved pelletizing coolant-temperature gage of the present invention control system schematic diagram.
Embodiment
Below in conjunction with embodiment and with reference to accompanying drawing, the invention will be further described, but explanation is below not for limiting the scope of the invention.
Former pelletizing coolant-temperature gage control system as shown in Figure 1, wherein, is used single control module pelleter pelletizing water return main water temperature T IC-X315 control module control pelletizing coolant-temperature gage.In the time that the temperature value of the first temperature converter TT-X315 mensuration can not meet the setting value requirement of TIC-X315 control module, control module gives the alarm, staff must adjust the moving cooling water valve aperture of controlling of control module setting value or hired roughneck in time, otherwise, the temperature of pelletizing water can not get timely adjustment, can not meet pelletizing requirement.
The embodiment of the present invention provides a kind of improved pelleter pelletizing coolant-temperature gage control system, as shown in Figure 2.This pelleter pelletizing coolant-temperature gage control system comprises: pelleter, ebullator, refrigeratory, cooling water control valve TV-X315, the first control module TIC-X315, the first temperature transmitter TT-X315, the second control module TIC-X314, the second temperature transmitter TT-X314, wherein, described pelleter, ebullator, refrigeratory pipeline communication; Described cooling water control valve is arranged on refrigeratory cooling water inlet pipeline; Described the first temperature transmitter is connected with pelleter pelletizing water water return pipeline; Described the second temperature transmitter is connected with refrigeratory pelletizing water outlet conduit; Described the first control module is used for controlling described cooling water control valve opening; Described the second control module is used for controlling the first control module.
The present embodiment is on the basis of original pelletizing coolant-temperature gage control system, increases TIC-X314 module, for controlling original TIC-X315 module, realizes the automatic adjusting of TIC-X315 module to pelletizing coolant-temperature gage.
In above-mentioned pelleter pelletizing coolant-temperature gage control system, described the second control module is master controller, and described the first control module is submaster controller, by second control module tandem control the first control module.
In above-mentioned pelleter pelletizing coolant-temperature gage control system, described the first control module and the second control module all can be selected DCS module.
The pelleter pelletizing coolant-temperature gage control system that uses the present embodiment to provide; can realize the automatic adjusting to pelleter pelletizing coolant-temperature gage; it is characterized in that; described the second control module TIC-X314 is master controller; described the first control module TIC-X315 is submaster controller; by second control module TIC-X314 tandem control the first control module TIC-X315; the output valve of the second control module TIC-X314 is as the setting value of the first control module TIC-X315; and then regulate cooling water valve aperture by the output valve of the first control module, specifically comprise the steps:
Step 1: default the second control module desired temperature is T;
Step 2: the second temperature transmitter detects refrigeratory pelletizing water output water temperature T1, and sends a signal to the second control module;
Step 3: the second control module judges whether T1 meets the requirement of setting value; If so, system is normal, if not, and output signal;
Step 4: the first control module receives the second control module output valve, and automatically regulate setting value;
Step 5: the first control module is calculated rear output signal and sends instruction according to the setting value after regulating, controls cooling water control valve valve opening;
Step 6: chilled water inflow changes, and the pelletizing water leaving water temperature cooling through refrigeratory meets pelletizing requirement.
As the preferred embodiment of above-mentioned pelleter pelletizing coolant-temperature gage control method, in said method, the setting value of the second control module TIC-X314 is made as to 33 ℃, 34 ℃ or 35 ℃.
The pelletizing coolant-temperature gage control system of utilizing above-described embodiment to provide, can realize pelletizing coolant-temperature gage controls automatically, the second control module TIC-X314 keeps one to stablize fixed value (as 33 ℃, 34 ℃ or 35 ℃, the temperature requiring according to cutting knife needs, change of production and factory department is set) at ordinary times.
When the variation of chilled water ambient temperature, pelletizing waste discharge, middle control personnel control situation not in time occur, all can reach automatic control object by second control module TIC-X314 tandem control the first control module TIC-X315.
The foregoing is only preferred embodiment of the present invention, be not used for limiting practical range of the present invention; If do not depart from the spirit and scope of the present invention, the present invention is modified or is equal to replacement, all should be encompassed in the middle of the protection domain of the claims in the present invention.
Claims (5)
1. a pelleter pelletizing coolant-temperature gage control system, is characterized in that, comprising: pelleter, ebullator, refrigeratory, cooling water control valve, the first control module, the first temperature transmitter, the second control module, the second temperature transmitter, wherein,
Described pelleter, ebullator, refrigeratory pipeline communication;
Described cooling water control valve is arranged on refrigeratory cooling water inlet pipe road;
Described the first temperature transmitter is connected with pelleter pelletizing water water return pipeline; Described the second temperature transmitter is connected with refrigeratory pelletizing water outlet conduit;
Described the first control module is used for controlling described cooling water control valve opening; Described the second control module is used for controlling the first control module.
2. pelleter pelletizing coolant-temperature gage control system according to claim 1, is characterized in that, described the second control module is master controller, and described the first control module is submaster controller, by second control module tandem control the first control module.
3. according to pelleter pelletizing coolant-temperature gage control system described in claim 1 or 2, it is characterized in that, described the first control module and the second control module all adopt DCS module.
4. the method for the pelleter pelletizing coolant-temperature gage control system control temperature described in a right to use requirement 1 or 2; it is characterized in that; described the second control module is master controller; described the first control module is submaster controller; by second control module tandem control the first control module; the output valve of the second control module is as the setting value of the first control module, and then regulates cooling water valve aperture by the output valve of the first control module, specifically comprises the steps:
Step 1: default the second control module desired temperature is T;
Step 2: the second temperature transmitter detects refrigeratory pelletizing water output water temperature T1, and sends a signal to the second control module;
Step 3: the second control module judges whether T1 meets the requirement of setting value; If so, system is normal, if not, and output signal;
Step 4: the first control module receives the second control module output valve, and automatically regulate setting value;
Step 5: the first control module is calculated rear output signal and sends instruction according to the setting value after regulating, controls cooling water control valve valve opening;
Step 6: chilled water inflow changes, and the pelletizing water leaving water temperature cooling through refrigeratory meets pelletizing requirement.
5. pelleter pelletizing coolant-temperature gage control method according to claim 4, is characterized in that, the setting value of described the second control module is 33 ℃, 34 ℃ or 35 ℃.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201210222072.1A CN102722195B (en) | 2012-06-29 | 2012-06-29 | Granulating water temperature control system and method for granulator |
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| CN201210222072.1A CN102722195B (en) | 2012-06-29 | 2012-06-29 | Granulating water temperature control system and method for granulator |
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| CN102722195B true CN102722195B (en) | 2014-05-28 |
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| CN103116373B (en) * | 2013-01-23 | 2014-12-10 | 中国电子工程设计院 | Method, device and system of controlling feeding sea water temperature |
| CN107139351A (en) * | 2017-07-11 | 2017-09-08 | 苏州双象光学材料有限公司 | Pelletizing water-cooling system |
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| EA013915B1 (en) * | 2005-11-28 | 2010-08-30 | Гала Индастриз, Инк. | Apparatus and method for controlled pelletization processing |
| DE102006058510A1 (en) * | 2006-12-12 | 2008-06-19 | Bühler AG | Process and device for the production and treatment of granules |
| JP5017322B2 (en) * | 2009-07-06 | 2012-09-05 | 株式会社日本製鋼所 | Crushing and mixing granulation method and apparatus using a twin screw extruder |
| CN102205566B (en) * | 2010-03-31 | 2015-06-03 | 上海金发科技发展有限公司 | Automatic temperature control cooling device for plastic granulation |
| CN202815625U (en) * | 2012-06-29 | 2013-03-20 | 江苏申久化纤有限公司 | Pelleter pelletizing water temperature control system |
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Address after: 215428 Shalu Highway 99, Jungjing Town, Taicang City, Suzhou City, Jiangsu Province Patentee after: Jiangsu Shenjiu (Group) Co.,Ltd. Address before: 215428 Shalu Highway 99, Jungjing Town, Taicang City, Suzhou City, Jiangsu Province Patentee before: JIANGSU SHENJIU CHEMICAL FIBER Co.,Ltd. |