KR100513479B1 - Heatless absorption type apparatus for drying high-pressure air - Google Patents

Abstract

The present invention relates to a non-heated adsorption-type high-pressure air drying apparatus for supplying ultra-high pressure ultra-dried air supplied to moisture-sensitive devices and devices in various industrial fields. More specifically, the present invention relates to an internal and external humidity of a dehumidification tank and a regeneration tank. It is equipped with a humidity sensor that can be visually checked by the controller to dehumidify the high pressure air according to the humidity condition of the outside air and the humidity inside the tank, so that the high pressure dry air can be supplied to the device and the device. The solenoid valve 30 connects the dehumidification tank 10 in which the dehumidifying material in which the dry air outlet 12 is formed and the external humidity sensor 13 is installed, and the regeneration tank 20 in which the internal humidity sensor 21 is mounted. And the humidity sensor (13) (21) and the solenoid valve (30) is connected to the controller (40).

Description

Non-heating adsorption-type high pressure air dryer {HEATLESS ABSORPTION TYPE APPARATUS FOR DRYING HIGH-PRESSURE AIR}

       The present invention relates to a non-heated adsorption-type high-pressure air drying apparatus for supplying ultra-high pressure ultra-dried air supplied to moisture-sensitive devices and devices in various industrial fields. More specifically, the present invention relates to an internal and external humidity of a dehumidification tank and a regeneration tank. It is equipped with a humidity sensor that can be visually checked by the controller to dehumidify the high pressure air according to the humidity condition of the outside air and the humidity inside the tank to supply the high pressure dry air to the device and the device.

       Generally, compressed air (10Kgf / cm3) is used for semiconductor equipment, transformer facilities, gas turbines, torpedo firing of vessels, starting diesel engines, driving turbines in power plants, gas insulated switch (GIS) gas switches and medical devices in transmission and distribution substations. Higher pressure air (30-300 kgf / cm 3) is used, and the moisture contained in the compressed air is supplied after dehumidifying through an air dryer to supply ultra-high pressure dry air.

       Currently used high pressure air dryers include refrigerated air dryers, alumina gels, silica gels and the like that reduce the temperature of compressed air using a refrigeration compressor and then condense and dehumidify saturated water in the air. Adsorption Air Dryer is classified into Adsorption Air Dryer that generates moisture by passing moisture through the tank filled with dehumidifying material such as MoreCuracibe. There is a problem that cannot be used in winter when the dew point is higher than 4 ℃ and the temperature drops below freezing. Adsorption air dryers with a relatively low dew point of -20 to -40 ℃ have a high failure rate and The disadvantage that the pressure (10kgf / cm3) of the compressed air discharged by adsorption drying is lowered and the price of the drying device is not economically expensive. There was a problem with relying on imports.

Therefore, the present invention was created for the purpose of solving the conventional problems as described above, so that the dew point can be operated at -40 ° C or lower so as not to be influenced by the ambient air temperature according to the change of seasons and in the state of not using the regenerated air. Supplying compressed air while maintaining the dryness of the air, checking the dehumidification status in the tank with the naked eye, making maintenance and management easier, and providing a drying device with improved price competitiveness while minimizing energy consumption. It is to.

In order to provide the above-mentioned drying device, the dehumidification tank formed with the inlet for introducing the wet air from the compressor and the outlet for the discharge of the compressed dry air is connected to the regeneration tank with the solenoid valve, and each tank has green, yellow and red red (LED). Non-heated adsorption-type high-pressure air drying that can automatically change the set regeneration time and regeneration state by connecting the installed external humidity sensor and internal humidity sensor to the controller and connecting the solenoid valve to the controller for electronic control of the regeneration flow rate. It is possible to provide a device.

Hereinafter, the configuration and operation of the present invention will be described in detail with reference to the accompanying drawings.

FIG. 1 is a conceptual diagram illustrating the overall structure of the present invention, in which a dehumidification tank and a regeneration tank are connected to a solenoid valve to control the regeneration flow rate electronically, and a sensor and a solenoid valve of each tank are controlled by a controller. Figure 3 is a detailed structure of the humidity sensor applied to the present invention shows the structure of the transparent film, three-color red, the control unit and the humidity sensor, Figure 3 is a circuit diagram of the present invention, the sensor unit, oscillation unit, control unit, oscillation element and display unit correlation A circuit diagram showing the relationship.

A dehumidification tank 10 having a dehumidifying material having a humid air inlet 11 and a compressed dry air outlet 12 formed therein and equipped with an external air humidity sensor 13 and a regeneration tank 20 equipped with an internal humidity sensor 21 is provided. The solenoid valve 30 is connected and the humidity sensor 13, 21 and the solenoid valve 30 are connected to the controller 40.

The sensor (13) (21) is composed of a transparent film (1), green, yellow, red tricolor red (2) control unit (3) and humidity sensor (4).

In the drawings, reference numeral A denotes an oscillation unit, A 'denotes a humidity sensor unit B, an oscillation element, C denotes a control unit, and D denotes a display unit.

The present invention as described above is equipped with an outside air humidity sensor 13 that can measure the humidity of the humid air flowing into the re-humidification tank 10 in the compressor and the dry air flowing into the regeneration tank 20 from the re-humidification tank 10. When the internal humidity sensor 21 for measuring the humidity is mounted to the controller 40 to decrease the performance of the dry air generated by the controller 40, the warning lamp flashes and the drying device facilitates maintenance and repair.

As shown in FIG. 1, the humid air is introduced from the compressor into the inlet 11 of the rehumidification tank 10, and the humidity is re-moistened in the rehumidification tank 10 filled with a dehumidifying material such as alumina gel, silica gel, and mole curassib. When generating dry air, when the outside humidity sensor 13 detects humidity and inputs it to the controller 40, the dehumidifying action is performed according to the outside temperature, and a part of the generated high pressure dry air is regenerated through the solenoid valve 30. 20) and some of them are discharged to the apparatus for high pressure dry air, such as GIS gas switchgear of transmission and distribution substation, through outlet 12.

The high pressure dry air introduced into the regeneration tank 20 senses the internal humidity by the internal humidity sensor 21 and inputs it to the controller 40 to flash the warning lamp [red (2)] if the set dry air is not generated.

In addition, the solenoid valve 30 also accurately varies the flow rate from the rehumidification tank 10 to the regeneration tank 20 and the regeneration tank 20 to the rehumidification tank 10 by the controller 40.

2 is a structure of the sensors 13 and 21 mounted on the tanks 10 and 20, and the red, yellow, and red three-colored reds 2 are installed at the rear end of the transparent film 1, and the humidity at the other end. By installing the sensor (4) to detect the humidity in the control unit (3) and to flash the warning light, it is possible to use in a high-pressure container.

The red (2) of the sensor (13) (21) is green when the relative humidity is less than 5% (normal), yellow when the relative humidity is 5-15% (check required), yellow when the relative humidity is 15% or more (replacement) By blinking the red warning light, it is possible to observe the worker's naked eye so that the status of the drying device can be immediately understood and the maintenance is easy.

3 is a circuit configuration of the present invention, the humidity sensor (A ') is a capacitor capacity is changed according to the humidity, the NE555 oscillation frequency modulated and the oscillator (A) is a RC oscillator oscillated by the capacitor and the resistor capacitor capacity according to the change in humidity The output frequency is modulated by the change and the oscillation element B is the most widely used element in the configuration of the oscillator. The oscillation frequency is determined by the RC value of the external oscillator A and is output.

The control unit (C) detects the relative humidity according to the input frequency, and the display unit (D) can digitally display three levels or several levels of the relative humidity digitally, if necessary, through red according to the humidity.

The present invention is not limited to the above-described specific preferred embodiments, and various modifications can be made by any person having ordinary skill in the art without departing from the gist of the present invention claimed in the claims. Of course, such changes will fall within the scope of the claims.

Therefore, the present invention detects and controls the humidity of the outside air and the humidity inside the tank to easily change the regeneration time and regeneration state of the set dry air without being affected by the outside temperature according to the season change, and the differential pressure of the high pressure dry air does not occur. By supplying compressed air while maintaining the dryness of the air and visually checking the dehumidification and humidity conditions in the tank, it is easy to maintain and manage, minimize energy consumption, and improve price competitiveness.

1 is a conceptual diagram showing the overall structure of the present invention

2 is a detailed structural diagram of a humidity sensor applied to the present invention

Figure 3 is a circuit diagram of the present invention

<Description of the symbols for the main parts of the drawings>

      (1) Clear Film (2) Tricolor Red

      (3) control unit (4) humidity sensor

      (10) Humidification tank (11) Wet air inlet

      (12) Dry air outlet (13) Air humidity sensor

      (20) Regeneration tank (21) Internal humidity sensor

      30 solenoid valve 40 controller

Claims (2)

A dehumidification tank 10 having a dehumidifying material having a humid air inlet 11 and a compressed dry air outlet 12 formed therein and equipped with an external air humidity sensor 13 and a regeneration tank 20 equipped with an internal humidity sensor 21 is provided. Non-heated adsorption high pressure air drying apparatus, characterized in that connected to the solenoid valve 30 and the humidity sensor (13) (21) and the solenoid valve (30) connected to the controller (40). The method of claim 1, The sensor (13) (21) is a non-heated adsorption high pressure air drying apparatus, characterized in that consisting of a transparent film (1), green, yellow, red tricolor red (2) control unit (3) and humidity sensor (4).