KR100764819B1 - Ultrasonic device for preventing and removing foreign substances in explosion-proof areas - Google Patents

Abstract

The present invention is to ultrasonically detect foreign matters such as scale inevitably generated inside the facility while preventing the explosion risk by the high-risk gas body existing in explosion-proof areas such as heat exchanger, piping, reboiler, etc. of petroleum refining facilities or chemical plants. It can be prevented and removed using.

A power supply means for supplying power for generating ultrasonic waves, a resonator means for generating an ultrasonic wave by a transducer connected to a facility and a device based on the supplied power, a controller for controlling an operating state of the resonator means, and A body made up of; In the ultrasonic apparatus consisting of a transducer for generating an ultrasonic wave by the power applied from the main body and the ultrasonic wave generation signal, wherein the main body and the transducer is configured to be connected by wires at a predetermined distance, the main body is a power source for power input When the magnetic switch is operated by the fuse and magnetic switch which cuts off the power in case of overload or short circuit due to the abnormality of the switch and the supply voltage, the cooling fan to cool the heat in the main body is activated and A power supply means comprising a transformer and a transformer for stably supplying the power supplied by the filter and the power switch to the controller and the resonance means at the same time; LED driving coil which detects the operation status of each transducer on the output line of the cylist and nonpolar capacitor in the resonant circuit composed of diode, polar capacitor, resistor, cylist and nonpolar capacitor. And a resonator means further included, wherein the transducer is fixedly coupled to one side of the cover through a predetermined fastening medium by using a flange at a portion where a wire is wound between the magnetic distortion conversion element and the waveguide for transmitting ultrasonic waves. And the other side of the cover is fixedly coupled to the pedestal, and the pedestal forms a rear cover to prevent flammable and explosive gas from penetrating into the transducer. will be.

Ultrasonic, explosion-proof areas, scales, transducers, magnetic distortion converters

Description

Ultrasonic device for preventing and removing foreign substances in explosion-proof areas {ultrasonic generator for excluding and preventing a different thing in explosive region}

1 is a cross-sectional view showing the transducer of the ultrasonic apparatus applied to the present invention

Figure 2 is a perspective view showing the main body of the pressure-explosion-type ultrasonic device to be applied to the present invention

Figure 3 is a circuit diagram of the internal configuration of the pressure-proof explosion-proof ultrasonic apparatus main body applied to the present invention

Figure 4abc is an internal configuration circuit diagram of the pressure-explosion-type ultrasonic apparatus main body in the state of subtracting the number of transducers applied to the present invention

Figure 5 is a perspective view of the explosion-proof explosion-proof ultrasonic apparatus main body applied to the present invention

6 is an internal configuration circuit diagram of the explosion-proof explosion-proof ultrasonic apparatus main body applied to the present invention

Figure 7 is a connection diagram showing the connection between the ultrasonic generating body and the transducer applied to the present invention

* Description of Signs of Main Parts of Drawings *

1. Ultrasonic Generator 10. Converter

11. Magnetic distortion converter 12. Wire

13. Waveguide 14. Cover

15. Flange 16. Fastening medium

17. Base 18. Rear cover

20. Main body 30. Explosion proof means

31.Air inlet 32.Flow control valve

33. Flowmeter 34. Differential pressure gauge

35. Differential pressure switch 36. Alarm sound

37. Alarm light 38. Reset switch

40. Power supply means 41. Power switch

42. Fuse 43. Magnetic switch

44. Cooling fan 45. Filter

46. Transformer 47. Power Lamp

50. Resonance means 51. Diode

52ab. Polar capacitors (for rectification) 53abcdefghij. resistance

54abcd. Cylist 55abcdef. Non-polar capacitors (charge-discharge)

56abcdef. LED driving coil 57abcdef. LED

60. Controller

The present invention relates to an ultrasonic device for preventing and removing foreign substances in explosion-proof areas, and more particularly, to high-explosion gas bodies existing in explosion-proof areas such as heat exchangers, piping, and reboilers in petroleum refining facilities or chemical plants. The present invention relates to an ultrasonic device for preventing and removing foreign substances generated in an explosion-proof area to prevent and remove foreign substances such as scale inevitably generated inside a facility by using ultrasonic waves, while preventing an explosion hazard.

In the case of general facilities and devices, a large amount of foreign matter such as scales or slimes is generated in the piping as time goes by when there are many facilities and devices, especially piping facilities. In order to prevent the occurrence of occurrence, the transducer connected to the ultrasonic generator is welded and fixed to the surface of the equipment and the apparatus or the pipes associated with them so that ultrasonic waves are transmitted to the inside of the apparatus and the equipment. Foreign substances such as scale and slime are removed or suppressed.

Ultrasound that removes or suppresses foreign substances such as scale and slime generated inside the apparatus and equipment is a high frequency that is inaudible to the human ear, and refers to the vibration of sound with strong energy. And the vibrations are strong enough to shake the material, so when ultrasonic waves are generated in the lower part of a container filled with water, they are strong enough to create a spray, and the medium on the ultrasonic path is partially heated and also due to strong tension. Small bubbles, which are cavitations, are generated and burst. Due to the powerful instantaneous pressure and explosion of several tens of pressure, the ultrasonically-affected material is subjected to mechanical action or chemical change, and is difficult to emulsify. It is also finely ground to produce a stable emulsion.

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Conventional ultrasonic apparatus is a state of operation of the resonant part and the resonant part to remove the pulsation voltage based on the power supply means for supplying the power required for the generation of the ultrasonic wave and the converter connected to the equipment and the device to generate the ultrasonic wave It is implemented in a configuration consisting of a controller for controlling the.

The conventional ultrasonic apparatus does not have a means for releasing a heat source generated in a space enclosed by a case, which adversely affects durability of internal parts and circuits, and causes damage to internal circuits due to heat.

In particular, when a conventional ultrasonic device is used in an explosion hazardous area, that is, a heat exchanger, piping, or reboiler of a petroleum refining facility or chemical plant (hereinafter referred to as an explosion-proof area), a transducer connected to the ultrasonic device is used. And the waveguide for transmitting the ultrasonic wave generated by the transducer to the object and the wire wound on the transducer are not blocked from the explosion hazard that may be caused by the gas body existing in the explosion-proof area. There is a problem of exposure.

In order to remove or suppress foreign substances such as scales generated inside the facility in the explosion-proof area, the inside of the facility should be frequently cleaned.In order to clean the inside of the facility, the entire plant operation must be stopped, and maintenance work is underway. There are safety accidents and explosion risks, and the expenses are greatly expended, resulting in a low economic efficiency, the energy efficiency is low, causing a loss of fuel.

Therefore, even if there is a high explosion gas body in the explosion-proof area where oil refining facilities and chemical plant facilities are installed, it is possible to remove foreign substances such as scale generated inside the facility by using ultrasonic waves and to suppress the generation of foreign substances. There is a need for an ultrasonic device.

The present invention has been made to solve the above-mentioned conventional problems, ultrasonic waves suitable for the explosion-proof structure to remove foreign substances such as scale or slime generated in the facility where gas bodies with high explosion risk in explosion-proof areas exist and to prevent the generation of foreign substances. The purpose is to prevent explosion accidents by using the device, to enable the operation of the relevant equipment in the explosion-proof area by removing foreign substances, to save energy, and to extend the maintenance period.

In order to achieve the above object, the power supply means for supplying the power required for the generation of ultrasonic waves, the resonator means for generating a ultrasonic wave by the transducer connected to the equipment and apparatus based on the supplied power, and the operating state of the resonance means A main body consisting of a controller for controlling the; In the ultrasonic apparatus consisting of a transducer for generating an ultrasonic wave by the power applied from the main body and the ultrasonic wave generation signal, wherein the main body and the transducer is configured to be connected by wires at a predetermined distance, the main body is a power source for power input When the magnetic switch is operated by the fuse and magnetic switch which cuts off the power in case of overload or short circuit due to the abnormality of the switch and the supply voltage, the cooling fan to cool the heat in the main body is activated and A power supply means comprising a transformer and a transformer for stably supplying the power supplied by the filter and the power switch to the controller and the resonance means at the same time; LED driving coil which detects the operation status of each transducer on the output line of the cylist and nonpolar capacitor in the resonant circuit composed of diode, polar capacitor, resistor, cylist and nonpolar capacitor. And a resonator means further included, wherein the transducer is fixedly coupled to one side of the cover through a predetermined fastening medium by using a flange at a portion where a wire is wound between the magnetic distortion conversion element and the waveguide for transmitting ultrasonic waves. The other side of the cover is fixedly coupled to the pedestal, and the pedestal forms a rear cover to implement an ultrasonic device for preventing and removing foreign substances in the explosion-proof area, which includes a configuration to prevent flammable and explosive gas from penetrating into the converter. It would be.

Hereinafter, with reference to the drawings will be described in detail with respect to the ultrasonic device (1) for preventing and removing foreign matter generation in the explosion-proof area to be applied to the present invention.

1 is a cross-sectional view showing the transducer 10 of the ultrasonic device 1 applied to the present invention, Figure 2 is a perspective view showing the main body 20 of the pressure-explosion-type ultrasonic device 1 applied to the present invention, 3 is an internal configuration circuit diagram of the main body 20 of the pressure explosion-proof ultrasonic device 1 applied to the present invention, and FIG. 4abc shows the main body of the pressure-explosion-type ultrasonic device 1 with the number of transducers 10 applied to the present invention subtracted. 5 is a perspective view of the main body 20 of the explosion-proof explosion-proof ultrasonic device 1 applied to the present invention, and FIG. 6 is a perspective view of the explosion-proof ultrasonic device 1 applied to the present invention. Fig. 7 is a connection diagram showing the connection relationship between the ultrasonic device body 1 and the transducer 10 applied to the present invention.

Ultrasonic device 1 according to the present invention comprises a pressure-explosion-proof and pressure-resistant explosion-proof, the pressure-explosion-proof ultrasonic device 1 maintains a constant pressure inside the main body 20 so that flammable and explosive gas can not penetrate inside. The differential pressure switch 35 is configured to maintain a predetermined differential pressure inside and outside, the pressure-resistant explosion-proof ultrasonic device 1 maintains the thickness of the main body 20 to meet the explosion-proof explosion-proof standards, The lamp 47 and the power switch 41 are configured to be cut off from external flammable and explosive gases when a fire occurs due to a short circuit caused by an internal circuit using an explosion proof approved product.

As shown, the ultrasonic apparatus 1 uses the differential pressure switch 35 so that the differential pressure inside and outside the main body 20 can maintain a pressure of 100 kPa so that flammable and explosive gases do not penetrate into the inside. 30, a power supply means 40 for supplying power for generating ultrasonic waves, a resonator means 50 for allowing the transducer 10 to generate ultrasonic waves based on the supplied power, and a resonator means 50 A main body 20 composed of a controller 60 configured as a PCB circuit board so as to control an operating state of the circuit board; The converter 10 for outputting the ultrasonic wave by the half-wave voltage applied by the resonator means 50 to remove foreign matters in the facility.

The transducer 10 can be welded by smoothly processing the position of the surface to be installed, and wound the wire 12 to the magnetic distortion converting element 11 to receive a pulsed current to the magnetic field formed on the wire 12. By generating a fine vibration of the magnetic distortion conversion element 11 to prevent foreign substances such as scale or slime inside the facility, the wire 12 is wound around the magnetic distortion conversion element 11 to The pulse current applied from the resonator means 50 may be supplied, and the wire 12 may be made of a material that can withstand a voltage of 1000V and endure -190 ° to + 260 °, and the magnetic distortion conversion The element 11 is connected to the waveguide 13 which transmits ultrasonic waves to the object.

The magnetic distortion conversion element 11 is made of a material such as nickel, iron-cobalt alloy, iron-aluminum alloy, etc., so that the cover 14 is formed on the outside so as to be suitable for the explosion-proof structure, the waveguide The flange (15) to the magnetic distortion conversion element (11) portion connected to the (13) to be fixedly coupled to one side of the cover 14 through a fastening medium 16, such as a bolt, and the The other side is fixedly coupled to the pedestal 17, the rear cover 18 is formed on the pedestal 17 to prevent the inflammable and explosive gas penetrates into the transducer 10, the flammable and explosive gas is infiltrated therein Even when a fire occurs, the flame is configured to be suitable for the explosion-proof structure so that the flame does not come out of the converter 10.

The main body 20 should be installed at a suitable location of the installation place of the explosion-proof area, that is, the temperature is as low as possible and well ventilated, close to the installation, and the length of the wire connected to the converter 10 is not more than 30m. The converter 10 connected to the wires by a distance from the main body 20 can be connected as shown in FIG.

The explosion-proof means 30 is a means for maintaining the pressure difference of the internal and external of the main body 20 to 100kPa by using the differential pressure switch 35, the air inlet 31 and the main body to supply the outside air ( 20) Flow control valve 32 for adjusting the flow rate flowing into the inside and the flow meter 33 for displaying the amount of air flowing into the main body 20 and the differential pressure gauge for displaying different pressures inside and outside the main body 20 Differential pressure switch 35 for detecting the change in the predetermined differential pressure inside and outside the main body 20 and the main body 20 to cut off the supply of power when the pressure inside the main body 20 becomes higher or lower than the predetermined pressure. ) And an alarm sound when the supply of power is cut off by the differential pressure switch 35, and an alarm sound part 36 and an alarm light part 37 that light an alarm light and pressures inside and outside the main body 20. Reset to operate the magnetic switch 43 when the normal pressure is set The switch 38 is formed and comprised.

The power supply means 40 is provided with a power switch 41 for power input and a fuse 42 and a magnetic switch 43 for shutting off the power when an overload or a short circuit occurs due to an abnormal supply voltage. When the magnetic switch 43 is operated by the supply of power, the cooling fan 44 that cools the heat in the main body 20 is operated, and the filter 45 filters the noise of the supplied power, and the power switch 41 While supplying the power supplied by the stable to the controller 60 to form a transformer 46 for supplying power so that the ultrasonic generation by the resonator means 50 is made stable.

The resonator means 50 is a means for resonating for ultrasonic generation by the power supplied through the power supply means 40, the diode 51, the polar capacitor (for rectification) 52ab, the resistance (53abcdefghij) The transducer 10 uses ultrasonic waves through continuous resonant action through a cyclic list (54abcd), a nonpolar capacitor (charge-discharge) (55abcdef), and a resonant circuit composed of an LED driving coil (56abcdef) and an LED (57abcdef). Allow it to occur.

The resonator means 50 according to the present invention does not have a separate winding resistance due to the supply of a stable power supply to prevent the heat generated inside due to the winding resistance, and because of the stable circuit structure of the territe coil Since it is not equipped separately, the unnecessary space is removed so that the volume can be reduced.

LED driving coil 56abcdef for sensing the operating state of the individual transducers 10 on the output line of the cylist 54abcd and the non-polar capacitor 56abcdef provided in the resonator means 50. Forming so that it is possible to check the operating state of the transducer 10 through each LED (57abcdef).

The proper frequency control and deviation of the cylist 54abcd can be adjusted by the controller 60 and its volume according to the conditions such as the thickness of the object to be ultrasonically transmitted, and the polar capacitor (for rectification) of the resonator means 50. A resistance 53abcdefghij is further provided as a means of protection against abnormal current that may flow through the 52ab, the cylist 54abcd, and the LED driving coil 56abcdef.

The controller 60 is composed of a PCB circuit board to control the operating state of each circuit element of the resonator means 50, the transducer 10 generates the ultrasonic wave of the maximum output to provide the ultrasonic wave to the target object through the waveguide (13). Do it.

As described above, the operation of the ultrasonic apparatus 1 for preventing and removing foreign substances in the explosion-proof region constructed by one embodiment of the present invention will be described in detail.

According to the present invention, the pressure explosion-proof ultrasonic device 1 and the main body 20 which prevent internal inflow of flammable and explosive gas by using different pressures inside and outside the main body 20 of the ultrasonic device 1 using the differential pressure switch 35 are provided. By forming itself in a thickness and structure suitable for explosion-proof explosion-proof standards to be composed of a pressure-resistant explosion-proof ultrasonic device (1) to be blocked from the combustible and explosive gas of the outside in the event of a fire inside the main body (20).

First, look at the operation of the pressure explosion-proof ultrasonic device 1, as follows.

The transducer 10 is fixed by welding to the position of the surface of the equipment to be installed, the main body 20 is formed at a suitable position of the place where the equipment of the explosion-proof area, the length of the wire connected with the transducer 10 Should be installed at a location not exceeding 30m.

When the main body 20 and the transducer 10 of the ultrasonic apparatus 1 are connected as described above, it is checked whether a predetermined condition value inside the main body 20 maintains a normal state. Low 120 [L], the type of protective gas is air, the minimum (alarm) pressure of the protective gas is 1.0 [kPa] (100 [mmH ₂ O]), and the minimum (alarm) flow rate of the protective gas is 2-3 [LPM]. The normal operating pressure of the protective gas is 2.0 to 8.0 [kPa] (200 to 800 [mmH ₂ O]), the normal operating flow rate of the protective gas is 5 to 12 [LPM], and the pressure and flow rate of the protective gas during ventilation are 10 [ kPa] (1000 [mmH ₂ O]), 15 [LPM], the minimum ventilation time is 120 [L] x 5 [Times] / 15 [L / min] = 40 [min].

When the power is connected to the power switch 41, the outside air is introduced into the main body 20 through the air inlet 31 is made of a condition of a predetermined flow rate and pressure, the supplied power is the fuse 42 In the case of the normal pressure adjusted by the differential pressure switch 35, the magnetic switch 43 is operated by the operation of the reset switch 38 and the cooling fan 44 is operated while the filter ( 45 to be transmitted to the transformer 46 to supply a stable power to the controller 60 and the resonator means (50).

At this time, when the pressure inside the main body 20 becomes higher or lower than the preset normal pressure, an alarm sound is output by the operation of the differential pressure switch 35, the alarm light may be turned on, and the supply of power may be cut off. The power applied to the resonator means 50 and the controller 60 through the power supply means 40 is short-circuited by the fuse 42 and opened and closed by the magnetic switch 43, thereby making the main body ( 20) Prevent damage to the internal circuit due to internal short circuit or overload.

The power passing through the power supply means 40 is applied to the resonator means 50, the wire 12 wound around the magnetic distortion conversion element 11 of the converter 10 and the diode 51 of the resonator means 50, the polarity Continuously by a resonant circuit consisting of a capacitor (for rectification) 52ab, a resistor (53abcdefghij), a cylist (54abcd), a nonpolar capacitor (charge-discharge), and an LED driving coil (56abcdef) and an LED (57abcdef) Maintain maximum output.

That is, when the rectified voltage is applied with the half wave voltage in the positive direction to the list 54a, the maximum output according to the resonance action of the wire 12 of the converter 10 and the nonpolar capacitor 55abc and the trigger signal of the controller 60. When the reverse half-wave voltage is applied to the list 54b, the ultrasonic wave of the transducer 10 generates the ultrasonic wave at the maximum output according to the resonant action of the wire 12 of the converter 10 and the nonpolar capacitor 55abc and the trigger signal of the controller 60. Ultrasonic waves are generated continuously.

In addition, when the rectified voltage is applied with the half wave voltage in the positive direction to the list 54c, the maximum output is generated according to the resonance action of the wire 12 of the converter 10 and the nonpolar capacitor 55def and the trigger signal of the controller 60. When the reverse half-wave voltage is applied to the list 54d, the ultrasonic wave of the transducer 10 generates a maximum output according to the resonant action of the wire 12 of the converter 10 and the nonpolar capacitor 55def and the trigger signal of the controller 60. Ultrasonic waves are generated continuously.

When the ultrasonic wave generation signal is applied to the transducer 10 by the resonator means 50, the wire 12 wound on the magnetic distortion converter 11 of the transducer 10 is applied from the resonator means 50. Ultrasonic waves are generated in the magnetostriction converting element 11 by the pulse current, and the ultrasonic waves can be transmitted to the target object inside the facility in which the transducer 10 is installed through the waveguide 13.

When the output signal of the ultrasonic wave is generated as described above, when the abnormality of the entire circuit occurs while being monitored by the controller 60 connected to the cylist 54abcd, the controller 60 applies the operation stop signal of the entire circuit to stop the operation. Make it work.

The LED driving coils 56abcdef connected to the respective converters 10 allow the induced voltages of the LED driving coils 56abcdef to emit the LEDs 57abcdef by the rectifier circuit of the diode 51. It is detected whether the converter 10 of the normal operation.

Looking at the operation of the explosion-proof ultrasonic apparatus 1, as follows.

When the power is connected to the power switch 41, the magnetic switch 43 is operated via the fuse 42, the cooling fan 44 is driven, and then the power lamp 47 is turned on via the filter 45. In order to supply stable power to the controller 60 and the resonator means 50 via the transformer 46, the power passed through the power supply means 40 is applied to the resonator means 50 to generate the magnetic force of the transducer 10. The wire 12 wound on the distortion converting element 11 and the diode 51 of the resonance means 50, the polar capacitor (for rectification) 52ab, the resistor 53abcdefghij, the cyst 54abcd, and the nonpolar capacitor (charge) -The process of generating ultrasonic waves by the resonant circuit composed of 55abcdef and LED driving coil 56abcdef and LED 57abcdef is the same as that of the pressure explosion-proof ultrasonic device, so further description is avoided.

As described above, the present invention is suitable for the explosion-proof structure to remove foreign substances such as scale generated inside the facility by ultrasonic while preventing the risk of explosion due to the flammable and explosive gas existing in the explosion-proof area. As those skilled in the art to which the present invention pertains, various changes, modifications and changes can be made without departing from the technical spirit of the present invention. It is not.

The present invention continuously uses an ultrasonic device suitable for explosion-proof structures such as scales inevitably generated inside the facility due to heat exchange or temperature deviation in explosion-proof areas such as heat exchangers, piping, reboilers, etc. of petroleum refining facilities or chemical plants. By preventing the generation of foreign matters, and by removing the foreign matters, it is possible to prevent the risk of explosion accidents due to the foreign matters such as the scale, to prevent the deterioration of the thermal efficiency due to the foreign matters so that the equipment works smoothly It is economically effective.

Claims (2)

A main body comprising a power supply means for supplying power for generating ultrasonic waves, a resonator means for generating an ultrasonic wave by a transducer connected to the facility and the apparatus based on the supplied power, and a controller for controlling an operating state of the resonator means ; An ultrasonic apparatus comprising: a transducer for generating ultrasonic waves by a power applied from the main body and an ultrasonic wave generating signal, The main body and the converter are configured to be connected by wires spaced apart a certain distance, the main body is a power switch for power input and the supply of a fuse and magnetic switch to cut off the power in the event of an overload or a short circuit due to abnormal supply voltage When the magnetic switch is operated, a cooling fan that cools the heat in the main body is operated, and a power supply consisting of a filter that filters out noise of the power supply and a transformer that supplies the power supplied by the power switch to the controller and the resonant means at the same time. Way; LED driving coil which detects the operation status of each transducer on the output line of the cylist and nonpolar capacitor in the resonant circuit composed of diode, polar capacitor, resistor, cylist and nonpolar capacitor. And a resonator means further included, wherein the transducer is fixedly coupled to one side of the cover through a predetermined fastening medium by using a flange at a portion where a wire is wound between the magnetic distortion conversion element and the waveguide for transmitting ultrasonic waves. And the other side of the cover is fixedly coupled to the pedestal, and the pedestal forms a rear cover to prevent flammable and explosive gas from penetrating into the converter. Ultrasonic devices. The method of claim 1, The main body is an air inlet through which the outside air flows; Flow control valve for adjusting the flow rate flowing into the body; A flow meter indicating an amount of air introduced into the main body; A differential pressure gauge displaying different pressures inside and outside the main body; A differential pressure switch that detects a change in a predetermined pressure inside the main body, activates an alarm light and an alarm sound, and cuts off power supply; Ultrasonic device for preventing and removing foreign matter generation in the explosion-proof region, characterized in that it further comprises an explosion-proof means consisting of a reset switch for operating the magnetic switch when the pressure inside the body is a normal pressure.

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