Heater temperature control system for natural gas dehydration device
A technology of temperature control system and dehydration device, applied in the direction of temperature control, control/regulation system, non-electric variable control, etc., to achieve the effect of small influence, low cost, and improved dv/dt regulation
Inactive Publication Date: 2019-02-12
SICHUAN JINXING CLEAN ENERGY EQUIP CO LTD +3
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Problems solved by technology
[0004] The purpose of the present invention is to overcome the shortcomings of the prior art, to provide a heater temperature control system for a natural gas dehydration device, which solves the deficiencies in the heater temperature control of the existing traditional natural gas dehydration device
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[0020] The present invention will be further described below in conjunction with the accompanying drawings, but the protection scope of the present invention is not limited to the following description.
[0021] Such as figure 1 and figure 2 As shown, a heater temperature control system of a natural gas dehydration device, which includes a PLC controller that outputs a control signal according to the received signal, and implements a trigger control trigger module according to the control signal output by the PLC controller, realizing AC non-contact Point-controlled thyristor sub-units, used to heat the electric heater for generating heat to regenerate the regenerated natural gas and the temperature control equipment for the temperature controller of the electric heater; the output end of the PLC controller is passed through the power line The three-phase line is connected to the trigger module, the output terminal of the trigger module is connected to the thyristor subunit ...
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The invention relates to a heater temperature control system for a natural gas dehydration device. The heater temperature control system comprises a PLC which outputs a control signal according to a received signal, a trigger module for realizing trigger control according to the control signal output by the PLC, a silicon controlled sub-unit for realizing alternating current contactless control, an electric heater for heating and generating heat to perform regeneration on regenerated natural gas and temperature control equipment which performs temperature control over the electric heater. Theoutput end of the PLC is connected with the trigger module through a three-phase line in a power line, the output end of the trigger module is connected with the silicon controlled sub-unit and the temperature control equipment, and the output end of the silicon controlled sub-unit is connected with the electric heater in a control mode. The PLC controls a trigger to trigger the full-wave phase shift of the unidirectional controlled silicon, and voltage regulation of 0-100% can be realized, so that accurate control over the heater temperature is achieved.
Description
technical field [0001] The invention relates to a heater control system for a dehydration device, in particular to a heater temperature control system for a natural gas dehydration device. Background technique [0002] Today, as natural gas and its subsidiary products account for an increasing proportion of national life, the demand for natural gas processing equipment, especially natural gas dehydration devices, has increased sharply. In the natural gas dehydration device, the heat generated by the electric heater is mainly used to regenerate the regeneration gas to realize the recycling of molecular sieves. [0003] Therefore, the temperature control of the heater is particularly important. Initially, the traditional heater control adopts the conventional contactor control, which can only realize high and low two-position control. The control accuracy is not high, the temperature fluctuates greatly, and the heating process is uncontrollable, which greatly reduces With the...
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IPC IPC(8): G05D23/20
CPCG05D23/20
Inventor 沈红平吴岚刘革胡文礼唐益华张久志
Owner SICHUAN JINXING CLEAN ENERGY EQUIP CO LTD