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Combination type drying machines controller

A dryer and combined technology, applied in the direction of machine/engine, liquid variable capacity machinery, mechanical equipment, etc., can solve the problems of large maintenance volume of single-chip controller, fragile processor CPU, weak anti-drying ability, etc. Achieve the effect of obvious energy saving, perfect function and simple wiring.

Active Publication Date: 2009-06-17
广州市汉粤净化科技有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Manufacturers of compressed air adsorption dryers only make special orders, and there are cases where the order time is long and the price is high
[0004] 2. A large amount of maintenance: due to the single-chip controller of the compressed air combined dryer, no matter which electronic component has a problem, it must be repaired, and because the combined dryer uses a single-chip controller in our country at present, this single-chip controller exists. Weak anti-interference ability, poor stability performance, I / O input and output and processor CPU are easily damaged, so the maintenance amount of single-chip controller is also quite large
[0005] 3. High maintenance cost: Since some manufacturers of compressed air combined dryers do not have maintenance conditions, they have to send the entire control box back to the manufacturer for maintenance. Long maintenance time and high maintenance costs have also brought adverse negative effects to manufacturers of compressed air combined dryers

Method used

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  • Combination type drying machines controller
  • Combination type drying machines controller
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Examples

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Embodiment Construction

[0018] Below in conjunction with accompanying drawing and embodiment the present invention will be further described:

[0019] Such as figure 1 , figure 2 and image 3 As shown, the combined dryer controller includes a programmable controller 24. The programmable controller 24 is connected with an analog signal conversion module 25 and a small man-machine interface 26. The analog signal input port of the analog signal conversion module 25 is connected with the finished product respectively. The gas dew point temperature transmitter DT1, the heater temperature transmitter TT1, and the air dryer dew point temperature transmitter TT2 are connected; the first to ninth input ports of the programmable controller 24 are respectively connected to the pressure switch 10 and the high and low pressure switch 6 The low voltage contact 61 of the high and low voltage switch 6, the high voltage contact 62 of the high and low voltage switch 6, the normally open contact FR-1 of the overload...

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Abstract

The invention discloses a combined-type drier controller. The controller comprises electric elements such as a programmable controller, an analog signal conversion module, a minitype man-machine interface, a communication module, an AC contactor, a relay and so on. The combined-type drier controller adopts the programmable controller as a control master machine and uses the minitype man-machine interface to set operating parameters so as to monitor the operating state of a cold drier and a tepid adsorption drier; meanwhile, the controller has stable performance and wide application range, and can conveniently realize automatic control and dew point energy-saving control of a combined-type drier; moreover, the system has the functions of refrigerant high pressure, refrigerant low pressure, compressor overload, phase sequence protection, overtemperature alarm and low air pressure alarm stop; the controller can realize the functions of switching and starting up an A tower and a B tower through remote / local control; and the cold drier and the tepid adsorption drier are capable of independent starting up and operating and can conveniently realize host computer communication. The controller can improve the performance of the prior compressed air combined-type drier, and has the practical characteristics of obvious energy-saving effect, simple structure, low cost and the like.

Description

technical field [0001] The invention relates to the technical field of compressed air purification, in particular to a controller of a combined dryer. Background technique [0002] The industry is an industry that has gradually emerged and developed rapidly in my country in recent years. Under the increasingly tense situation of global available resources, the use of compressed air as a power source is widely used in various industries. Various compressed air purification devices have also appeared one after another. For combined dryers, the current domestic combined dryer control systems are controlled by traditional relays or single-chip microcomputers. When this control system is used in combined dryers There are many disadvantages: [0003] 1. Imperfect functions: At present, the single-chip controllers of compressed air combined dryers in China do not have communication functions, alarm functions, and remote control functions. They only have local control functions. In...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B01D53/26F04B39/16F25J3/08
Inventor 王合洲
Owner 广州市汉粤净化科技有限公司
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