CN202502368U - Microcomputer control system used in variable-frequency refrigerated air dryer - Google Patents
Microcomputer control system used in variable-frequency refrigerated air dryer Download PDFInfo
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- CN202502368U CN202502368U CN2012200445707U CN201220044570U CN202502368U CN 202502368 U CN202502368 U CN 202502368U CN 2012200445707 U CN2012200445707 U CN 2012200445707U CN 201220044570 U CN201220044570 U CN 201220044570U CN 202502368 U CN202502368 U CN 202502368U
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- temperature control
- microcomputer control
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Abstract
The utility model belongs to the field of compressed air purification, especially relates to a microcomputer control system used in a variable-frequency refrigerated air dryer. The microcomputer control system comprises a CPU and a start circuit, a shutdown circuit, a high-voltage protection circuit, a low-voltage protection circuit, a motor protection circuit and a phase sequence protection circuit which are connected to the CPU. A touch screen circuit, a variable-frequency drive circuit, a variable-frequency drive protection circuit and a temperature control module are also connected to the CPU. According to the microcomputer control system of the utility model, a multifunctional temperature control module of EM 235 and the touch screen circuit are adopted to combine with the microcomputer control system, which enables simple circuit, convenient operation and maintenance as well as reduced overall-unit fault rate for the microcomputer control system of the utility model.
Description
Technical field
The utility model belongs to the pressurized air field of purification, relates in particular to a kind of microcomputer control system that is used for the frequency conversion type cooling driers.
Background technology
Improving constantly of Along with people's living standard, also increasingly high to the requirement of air utilization and purification, at present, compressed air drier is broadly divided into two kinds of freezing type drier and absorption driers; The water vapor that freezing type drier utilizes refrigeration principle that the pressurized air cooling is isolated wherein carries out drying, and system's air demand of this drier is 100%, but dew point can only reach 2 degrees centigrade to 10 degrees centigrade; Traditional freezing type drier adopts frequency converter to control compressor, gathers the compressor return air temperature with thermometric instrument, and electric wiring is complicated, and electrical equipment is various, makes that the complete machine failure rate is higher, and is not easy to maintenance and operation.
Summary of the invention
The utility model is in order to solve defective and the deficiency that above-mentioned prior art exists, and provides that a kind of circuit is simple, convenient operating maintenance, can make the low microcomputer control system that is used for the frequency conversion type cooling driers of complete machine failure rate simultaneously.
The technical scheme of the utility model: a kind of microcomputer control system that is used for the frequency conversion type cooling driers; Comprise CPU and be connected boot-strap circuit, halt circuit, high tension protection circuit, low-voltage protection circuit, motor protective circuit and the phase sequence circuit on the CPU, also be connected with touch screen circuitry, convertible circuit, frequency converter holding circuit and temperature control module on the said CPU.
Preferably, also be connected with warning circuit and operation indicating circuit on the said CPU.
Preferably, said temperature control module is EM235, is connected with suction temperature control circuit, intake air temperature control circuit, delivery temperature control circuit and inflow temperature control circuit on the said temperature control module.
The utility model adopts multifunctional temperature control module EM235 and touch screen circuitry to combine microcomputer control system, makes that its circuit is simple, convenient operating maintenance, can reduce the complete machine failure rate simultaneously.
Description of drawings
Fig. 1 is the schematic block circuit diagram of the utility model.
Embodiment
Below in conjunction with accompanying drawing the utility model is done further detailed explanation, but be not restriction the utility model protection domain.
As shown in Figure 1; A kind of microcomputer control system that is used for the frequency conversion type cooling driers; Comprise CPU and be connected boot-strap circuit, halt circuit, high tension protection circuit, low-voltage protection circuit, motor protective circuit and the phase sequence circuit on the CPU, last touch screen circuitry, convertible circuit, frequency converter holding circuit, temperature control module, warning circuit and the operation indicating circuit of also being connected with of CPU.Temperature control module is EM235, is connected with suction temperature control circuit, intake air temperature control circuit, delivery temperature control circuit and inflow temperature control circuit on the said temperature control module.
The utility model adopts multifunctional temperature control module EM235 and touch screen circuitry to combine microcomputer control system, makes that its circuit is simple, convenient operating maintenance, can reduce the complete machine failure rate simultaneously.
Claims (3)
1. microcomputer control system that is used for the frequency conversion type cooling driers; Comprise CPU and be connected boot-strap circuit, halt circuit, high tension protection circuit, low-voltage protection circuit, motor protective circuit and the phase sequence circuit on the CPU, it is characterized in that: also be connected with touch screen circuitry, convertible circuit, frequency converter holding circuit and temperature control module on the said CPU.
2. a kind of microcomputer control system that is used for the frequency conversion type cooling driers according to claim 1 is characterized in that: also be connected with warning circuit and operation indicating circuit on the said CPU.
3. a kind of microcomputer control system that is used for the frequency conversion type cooling driers according to claim 1; It is characterized in that: said temperature control module is EM235, is connected with suction temperature control circuit, intake air temperature control circuit, delivery temperature control circuit and inflow temperature control circuit on the said temperature control module.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012200445707U CN202502368U (en) | 2012-02-13 | 2012-02-13 | Microcomputer control system used in variable-frequency refrigerated air dryer |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012200445707U CN202502368U (en) | 2012-02-13 | 2012-02-13 | Microcomputer control system used in variable-frequency refrigerated air dryer |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202502368U true CN202502368U (en) | 2012-10-24 |
Family
ID=47038978
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2012200445707U Expired - Fee Related CN202502368U (en) | 2012-02-13 | 2012-02-13 | Microcomputer control system used in variable-frequency refrigerated air dryer |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202502368U (en) |
-
2012
- 2012-02-13 CN CN2012200445707U patent/CN202502368U/en not_active Expired - Fee Related
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| 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: 20121024 Termination date: 20150213 |
|
| EXPY | Termination of patent right or utility model |