Granulating water temperature control system and method for granulator
A technology of temperature control system and cutting water, which is applied in the direction of temperature control, control/regulation system, non-electric variable control, etc., and can solve the problem of large waste discharge pressure, rising temperature of cutting water, blockage of slice conveying pipes, etc. problems, to avoid equipment damage and avoid quality degradation
Active Publication Date: 2014-05-28
JIANGSU SHENJIU CHEM FIBER CO LTD
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Problems solved by technology
[0004] In addition, when the granulator is discharging waste, due to the reduction of heat, when the return water temperature of the granulator changes greatly, the cooling capacity is generally reduced by adjusting the cooling water valve so that the temperature returns to the set value of the control module; When granulating or increasing the granulator, the flow rate of the granulating water increases through the plate exchange, resulting in a rapid rise in the temperature of the granulating water. If the manual adjustment of the cooling water valve is not activated in time to interfere, the temperature of the granulating water can rise to above 45°C , due to the large amount of waste discharge and high water temperature, it is likely to cause waste discharge from other pelletizers, or blockage of the slice conveying pipeline
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[0026] The present invention will be further described below in conjunction with the embodiments and with reference to the accompanying drawings, but the following description is not intended to limit the protection scope of the present invention.
[0027] The original cutting water temperature control system such as figure 1 As shown, among them, use the single control module TIC-X315 control module to control the temperature of the cutting water. When the temperature value measured by the first temperature transmitter TT-X315 cannot meet the set value requirements of the TIC-X315 control module, the control module will send out an alarm, and the staff must adjust the set value of the control module in time or manually control the cooling water valve Otherwise, the temperature of the cutting water cannot be adjusted in time and cannot meet the cutting requirements.
[0028] Embodiments of the present invention provide an improved granulator cutting water temperature control ...
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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 [0001] The invention relates to the technical field of temperature control of a granulator for a polyester plant, in particular to a temperature control system and method for granulating water of a granulator. Background technique [0002] In the existing polyester pelletizer equipment, in order to ensure pelletizing quality, it is best to control the pelletizing water temperature within a certain range. If the pelletizing water temperature is not well controlled, it will have a great impact on the pelletizing quality, and even cause Cause damage to pelletizer equipment. [0003] The existing pelletizing water temperature control system of the pelletizer uses a single control module to control the pelletizing water temperature. When the pelletizing amount changes greatly, the set value of the single control module will not change, which will lead to The actual temperature of the cutting water changes. At this time, it is often necessary to adjust the tempera...
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IPC IPC(8): G05D23/20B29B9/02
Inventor 朱希访邱国全张治义李永强申伟
Owner JIANGSU SHENJIU CHEM FIBER CO LTD