KR20090008886A - System for error operation prevent of air pressure operation type circuit-breakers - Google Patents

Abstract

A system for preventing error operation of air pressure operation type circuit-breakers is provided to prevent enormous damage according to malfunction and to lengthen reliability and lifetime of a minute operation tool by preventing beforehand malfunction of air pressure operation type circuit-breakers. A system for preventing error operation of air pressure operation type circuit-breakers contains a filter 1(1), a refrigerated air dryer(2), a filter 2(3), an adsorption unfired pressure reduction regenerative air dryer(4), a filter 3(5), a filter 4(6), a check V/V(7). The filter 1 filters particles of which is a size is 40mum or greater in fine dust of compacted air flown in from an air compressor. The refrigerated air dryer removes oil . moisture of the compacted air passing through the filter 1. The filter 2 filters particles of which is a size is 5mum or greater in the fine dust of the compacted air passing through the refrigerated air dryer. The adsorption unfired pressure reduction regenerative air dryer dries the compacted air passing through the filter 2 to -65°C. The filter 3 filters particles of which a size is 0.3mum or greater in the fine dust of the compacted air passing through the adsorption unfired pressure reduction regenerative air dryer. The filter 4 filters particles of which is a size is 0.01mum or greater in the fine dust of the compacted air passing through the filter 3 and delivers the particles to air tank. The check V/V is positioned between the filter 4 and the air tank.

Description

System for error operation prevent of air pressure operation type circuit-breakers}

In the present invention, fine dust particles in the compressed air passed through the air compressor can be filtered by size through four filters, and two air dryers can remove oil and moisture and dry them to prevent malfunction. It's about the system.

The pneumatic breakers (GIS, GCB) currently operating are not suitable for the domestic climate environment.

The reason for this is that as the yellow dust phenomenon is increasing year by year and the Chinese industry is growing rapidly, the yellow sand contains not only the silica sand component but also the fine heavy metal, which causes the fatal damage of precision equipment.

Therefore, as the current precision control mechanism of the circuit breaker uses the compressed air which is adversely affected as described above, the inside of the precision class controller is severely damaged by grease oxidation and corrosion, which delays the important trip (TRIP) of the circuit breaker or causes a malfunction. Cases are frequent and likely to occur more frequently in the future.

In addition, when there is a lot of humidity in the summer, the operation of the air compressor becomes frequent due to the temperature drop, and moisture accumulates inside the control mechanism. It became the cause.

Since it is judged that it is impossible to replace the current pneumatic operation method with hydraulic method or other method, it is possible to prevent the malfunction of the pneumatic operation method breaker in advance, thus establishing a low-cost, simple and stable system that can eliminate the enormous damage caused by the operation. There is a need to do so.

The present invention has been invented in order to revive such demands,

It is an object of the present invention to provide a pneumatically operated breaker air flow prevention system that can prevent the malfunction of the pneumatically actuated breakers by removing and drying the fine dust, oil and water of the compressed air introduced from the air compressor. have.

Another object of the present invention is to provide a pneumatically operated breaker air flow prevention system that can prevent the damage caused by the malfunction by extending the reliability and life of the precision control mechanism by preventing the malfunction of the pneumatically actuated breaker in advance. .

In order to achieve the above object, the pneumatic operation type breaker air flow prevention system according to an embodiment of the present invention,

A filter 1 for filtering particles having a size of 40 μm or more among fine dust of compressed air introduced from the air compressor; Refrigerated air dryer for removing the oil and water of the compressed air passed through the filter 1; A filter 2 for filtering particles having a size of 5 μm or more from fine dust of compressed air passing through the frozen air dryer; An adsorption non-heating reduced pressure regenerative air dryer for drying the compressed air passing through the filter 2 to the lowest dew point -65 ° C; A filter 3 for filtering particles having a size of 0.3 μm or more from the fine dust of compressed air passing through the adsorption non-heating pressure reduction regenerative air dryer; A filter 4 for filtering particles having a size of 0.01 μm or more from the fine dust of compressed air passed through the filter 3 and transferring the filtered particles to the air tank; It is located between the filter 4 and the air tank, characterized in that consisting of a check V / V to protect the device through immediate shut-off in case of failure.

The pneumatically operated breaker airflow prevention system according to the present invention has the effect of preventing the malfunction of the pneumatically operated breaker airflow by removing and drying fine dust and oil and water of the compressed air introduced from the air compressor. .

In addition, by preventing the malfunction of the pneumatic operation type breaker in advance, there is an effect that can prevent the enormous damage caused by the malfunction and extend the reliability and life of the precision control mechanism.

The present invention will be described in more detail based on the accompanying drawings as follows.

In the following description of the present invention, detailed descriptions of well-known functions or configurations will be omitted if it is determined that the detailed description of the present invention may unnecessarily obscure the subject matter of the present invention. And the following terms are terms defined in consideration of functions in the present invention, which may vary according to the intention or custom of the user, operator, etc. Accordingly, the meaning of each term should be interpreted based on the contents throughout the present specification. will be.

1 is a configuration diagram showing a pneumatic operation type breaker air flow prevention system according to an embodiment of the present invention.

As shown, the pneumatically operated breaker air flow prevention system of the present invention consists of four filters and two air dryers.

The compressed air introduced through the air compressor contains yellow sand or heavy metal particles in various sizes and contains oil and moisture.

First, only the fine dust contained in the compressed air introduced through the air compressor is filtered out of the filter 1 (1) of more than 40㎛, the compressed air passing through the filter 1 (1) is a refrigerated air dryer (2) Oil is removed by 95% and water drops to -65 ℃.

At this time, the removed oil is adsorbed on the filter and the water is automatically discharged.

In this way, the compressed air from which oil and moisture are removed from the refrigerated air dryer 2 is introduced into the filter 2 (3), and the filter 2 (3) filters fine dust of 5 µm or more from the compressed air introduced.

In addition, the compressed air passing through the filter 2 (3) flows into the adsorption non-heating pressure reduction regenerative type air dryer 4 and is dried to a minimum dew point of -65 ° C.

At this time, the adsorption non-heating pressure reduction regenerative air dryer 4 used is a method of regenerating without using a heat source, and since the structure is simple because there is no heater or an electric control panel, the life of the desiccant is long and the maintenance is easy.

Next, the compressed air dried in the adsorption non-heating pressure reduction regenerative air dryer 4 filters out fine dust of 0.3 μm or more from the filter 3 (5), and the compressed air passed through the filter 3 (5) is filtered. At 4 (6), once again, fine dust of 0.01㎛ or more is introduced into the air tank.

In addition, in the event of a failure, the check V / V 7 is provided so that the device can be protected from being cut off.

As described above, the fine particles are removed to the size of 0.01㎛ through the four filters, oil and water are removed and dried through the two air dryers to prevent the malfunction of the pneumatic operation circuit breaker in advance. You can do it.

1 is a configuration diagram showing a pneumatic operation type breaker air flow prevention system according to an embodiment of the present invention.

Explanation of symbols on the main parts of the drawings

1: filter 1 2: refrigerated air dryer

3: filter 2 4: adsorption non-heating pressurized regenerative air dryer

5: filter 3 6: filter 4

7: check V / V

Claims (1)

A filter 1 (1) for filtering particles having a size of 40 µm or more from the fine dust of compressed air introduced from the air compressor; Refrigerated air dryer (2) for removing the oil and water of the compressed air passed through the filter 1 (1); A filter 2 (3) for filtering particles having a size of 5 μm or more from fine dust of compressed air passing through the refrigerated air dryer; Adsorption unheated pressure reduction regenerative air dryer (4) for drying the compressed air passed through the filter 2 (3) to the lowest dew point -65 ℃; A filter 3 (5) for filtering particles having a size of 0.3 µm or more from the fine dust of compressed air passing through the adsorption non-heating pressure reduction regenerative air dryer (4); A filter 4 (6) for filtering particles having a size of 0.01 µm or more from the fine dust of compressed air passing through the filter 3 (5) and delivering them to the air tank; Located between the filter 4 (6) and the air tank, pneumatic operation type breaker air flow prevention prevention system, characterized in that consisting of a check V / V (7) to protect the device through immediate shut-off in case of failure.

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