KR20190071357A - Debris removal device - Google Patents

Abstract

Provided by the present invention is a foreign matter removing device which is able to prevent damage on a motor by changing the driving direction of the motor with a sensing unit when excessive foreign matter flows into the foreign matter removing device, and enables cooling water to flow continuously while removing foreign matter. The foreign matter removing device of the present invention includes: i) a main body unit in which cooling water flows; ii) a removing unit which is positioned in the main body unit and filters or removes the foreign matter of cooling water; iii) a sensing unit which is positioned at the outside of the main body unit; and iv) a control unit which is electrically connected to the sensing unit. The main body unit includes: a first frame which is positioned inside the main body unit and is extended in a first direction; a gear housing which is connected to the upper part of the first frame; a second frame which is extended in a second direction intersecting the first direction, and of which one side is connected to the gear housing and the other side is positioned at the outside of the main body unit; a hollow tube which is connected to the first frame and moves foreign matter; and a discharge hole which is positioned in the side surface of the main body unit and discharges the foreign matter of the hollow tube. The sensing unit includes: a motor which is positioned in the outside of the main body unit and is connected to the second frame; a rotary shaft which is extended in a second direction and is connected to the motor; a bolt unit which is positioned in the rotary shaft; and a sensor which detects the proximity state of the bolt state.

Description

{DEBRIS REMOVAL DEVICE}

A foreign body remover is provided.

The condensate or heat exchanger of the industrial plant is continuously supplied with cooling water using water such as river and sea water through the pipe. Cooling water contains various foreign substances, which can cause malfunction or durability if foreign matter accumulates inside the facility. Accordingly, a foreign material removing device may be used to remove foreign substances from the cooling water.

However, when a large amount of foreign matter is stacked on the foreign material removing device, the operation can not be maintained, or the cooling water can not be supplied to the condenser or the heat exchanger, resulting in a decrease in the use efficiency. In addition, when the filter becomes saturated due to sedimentation of the foreign matter, the operator must perform manual cleaning and replacement operations manually, which may cause safety accidents and economic losses.

According to an embodiment of the present invention, when excessive foreign substances are introduced into the foreign object remover, the foreign matter can be prevented from being damaged by changing the operation direction of the motor using the sensing unit, and the foreign matter remover .

Embodiments according to the present invention can be used to accomplish other tasks not specifically mentioned other than the above-described tasks.

The foreign matter remover according to the embodiment of the present invention comprises: i) a main body portion through which cooling water flows; ii) a removal portion which is located inside the main body portion to filter or remove foreign matter from the cooling water; iii) And a control unit electrically connected to the unit. A gear housing connected to an upper portion of the first frame, a gear housing extending in a second direction intersecting the first direction, one side connected to the gear housing, and the other side connected to the outside of the main body And a discharge port connected to the first frame for discharging the foreign substance of the hollow tube, the hollow pipe being located on a side surface of the main body part, the sensing part being located outside the main body part, A motor connected to the frame, a rotation axis extending in the second direction and connected to the motor, a bolt positioned at the rotation axis, and a sensor for detecting the proximity state of the bolt.

The bolt portion may include a plurality of bolts located along the circumference of the rotational axis. The sensor can detect a plurality of bolts rotating in accordance with the rotation of the rotating shaft in a predetermined number of times. The controller may rotate the rotation direction of the motor inversely unless a plurality of bolts are detected by the sensor in a predetermined number of times within a predetermined time.

According to an embodiment of the present invention, when an excessive torque of the motor occurs using the sensing unit, the user can recognize the alarm through the alarm of the control unit, and the operation direction of the motor can be changed to prevent damage to the equipment.

1 is a schematic cross-sectional view of a foreign matter remover according to an embodiment of the present invention.
2 is a schematic partial cross-sectional view of the foreign matter remover of FIG.
3 is a schematic partial cross-sectional view of the foreign body remover of FIG.
4 is a schematic perspective view of a foreign matter remover according to an embodiment of the present invention.

The terminology used herein is for the purpose of describing particular embodiments only and is not intended to limit the invention. The singular forms as used herein include plural forms as long as the phrases do not expressly express the opposite meaning thereto. Means that a particular feature, region, integer, step, operation, element and / or component is specified, and that other specific features, regions, integers, steps, operations, elements, components, and / And the like.

Unless otherwise defined, all terms including technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this invention belongs. Commonly used predefined terms are further interpreted as having a meaning consistent with the relevant technical literature and the present disclosure, and are not to be construed as ideal or very formal meanings unless defined otherwise.

Hereinafter, embodiments of the present invention will be described in detail with reference to the accompanying drawings so that those skilled in the art can easily carry out the present invention. The present invention may, however, be embodied in many different forms and should not be construed as limited to the embodiments set forth herein.

1 is a cross-sectional view of a foreign matter remover 1 according to an embodiment of the present invention. The structure of the foreign matter remover 1 of Fig. 1 is merely for illustrating the present invention, and the present invention is not limited thereto. Therefore, the structure of the foreign matter remover 1 can be modified in other forms.

1, the foreign substance remover 1 may include a main body 10, a removal unit 20, a sensing unit 30, and a control unit 40. As shown in FIG. The body 10 may include a first frame 11, a gear housing 13, a second frame 15, a hollow tube 17, and an outlet 19.

The body portion 10 may have a cylindrical shape. The inside of the main body 10 can be filled with cooling water using water and seawater. The main body 10 may be a passage for stably supplying the cooling water supplied to the heat exchanger provided in the industrial facility.

The first frame 11 may be located inside the main body 10. The first frame 11 may have a cylindrical shape extending in the Z-axis direction. The gear housing 13 can be connected to the upper portion of the first frame 11. The gear housing 13 may include a plurality of gears (not shown) therein. The plurality of gears may include a bevel gear or a worm gear.

The second frame 15 may extend and extend in the x-axis direction. One side of the second frame 15 can be connected to the gear housing 13. The other side of the second frame 15 may be located outside the main body 10. And the other side of the second frame 15 can be connected to the motor 31. [ The power of the motor 31 can be transmitted to the gear housing 13 through the transmission shaft 39 located inside the second frame 15. The gear housing 13 receives the power from the motor 31 and can rotate the first frame 11. [

The hollow tube 17 may be connected to the lower portion of the first frame 11. The hollow tube 17 may be a passage for moving foreign substances in the main body 10. [ The outlet 19 may be located on the outer side of the body portion 10. The discharge port 19 is connected to the end of the hollow tube 17 to discharge the foreign matter to the outside of the main body 10.

The removal part 20 may be located inside the main body part 10. [ The removal unit 20 can filter or remove foreign matter of the cooling water flowing inside the main body part 10. The removal part 20 may include a support part 21, a screen part 23 and a bucket part 25. [

The screen unit 23 can filter foreign substances contained in the cooling water. The screen portion 23 may be made of a mesh net. One side of the screen portion 23 can be connected to the lower side of the gear housing 13. [ The other side of the screen portion 23 abuts the inner side surface of the body portion 10 and may have the same cross-sectional shape as the inner side surface of the body portion 10. [

When the main body portion 10 has a cylindrical shape, the screen portion 23 has a circular shape around the gear housing 13, and the periphery thereof can abut the inner side surface of the main body portion 10. Accordingly, the cooling water flowing in the main body portion 10 can filter or remove foreign substances contained in the screen portion 23 while passing through the screen portion 23.

The support portion 21 may include a first support portion 21a, a second support portion 21b, and a third support portion 21c. The first support portion 21a and the second support portion 21b may be connected to the screen portion 23. The first support portion 21a and the second support portion 21b may be connected to the upper portion of the screen portion 23 and extend in the Z-axis direction. The first support portion 21a and the second support portion 21b may be spaced apart from each other. The third support portion 21c may be connected to the upper portions of the first support portion 21a and the second support portion 21b.

The height of the first support portion 21a may be smaller than the height of the second support portion 21b. In this case, the third support portion 21c may have a shape that is inclined inward of the body portion 10. The third support portion 21c has an inclined shape and can support the screen portion 23 through the first support portion 21a and the second support portion 21b.

The inclined third support portion 21c can disperse the pressure by the cooling water, so that the durability of the support portion 21 can be enhanced. In addition, when the cooling water flows into the main body 10 and passes through the screen 23, foreign matter of the cooling water is filtered, the stability of the support of the screen 23 can be enhanced.

The bucket part 25 can receive the foreign matter of the cooling water filtered or removed from the screen part 23. [ The bucket part 25 can be connected to the first frame 11. The bucket part 25 can rotate along the first frame 11 rotated by the motor 31. [ The bucket portion 25 can rotate at the lower portion of the screen portion 23.

The foreign matter of the cooling water can be filtered or removed while the cooling water flows into the inside of the main body part 10 and passes through the screen part 23. The bucket part 25 can collect foreign matter filtered or removed from the screen part 23 while rotating along the first frame 11 at the screen part 23. [ The foreign substances contained in the bucket part 25 can be discharged to the outside of the main body part 10 through the discharge port 19 through the first frame 11 and the hollow pipe 17.

The cooling water uses river water and seawater, and the cooling water flows into the main body 10 including a large amount of foreign matter due to typhoons or rainy season. The foreign material removing unit 1 can change the rotating direction of the motor 31 by using the sensing unit 30 and the control unit 40 so that the overload can be prevented from being applied to the bucket unit 25, It is possible to prevent the motor 31 from being damaged and remove the foreign matter, and at the same time, the cooling water can flow continuously.

However, when excessive foreign matter is introduced, the conventional foreign matter filter or the eliminator may not be able to rotate because the bucket portion is overloaded. Furthermore, since the cooling water can not be supplied smoothly, the operation of the industrial equipment is stopped or the worker manually removes the foreign matter.

Hereinafter, the sensing unit 30 and the control unit 40 will be described in more detail with reference to FIGS. 2 and 3. FIG.

2 is a partial cross-sectional view of a sensing unit 30 and a control unit 40 of a foreign substance remover 1 according to an embodiment of the present invention. 2, the foreign substance remover 1 may include a sensing unit 30 and a control unit 40. [

The sensing unit 30 may include a motor 31, a rotary shaft 33, a bolt 35, and a sensor 37. The motor 31 may be a geared motor. The motor 31 may be connected to the second frame 15. The rotary shaft 33 can be connected to the motor 31. The rotary shaft 33 can rotate in the direction of the arrow in Fig. 2 as the motor 31 is driven. The rotary shaft 33 may be located inside the second frame 15. One side of the rotary shaft 33 can be connected to the motor 31 and the other side can be connected to the transmission shaft 39. The transmission shaft 39 can be connected to the gear housing 13. [

The bolt portion 35 may be located along the circumference of the rotating shaft 33. The bolt portion 35 may include a plurality of bolts 35a and 35d. The sensor 37 may be positioned below the rotary shaft 33. When the rotary shaft 33 is rotated by the motor 31, the sensor 37 can sense a plurality of rotating bolts 35a and 35d. The sensor 37 can detect the proximity state of the plurality of bolts 35a and 35d. The sensor 37 can sense the number of times of proximity of the plurality of bolts 35a and 35d rotating within a predetermined time.

The control unit 40 may include a terminal box 41 and a connection line 43. The connection line 43 can electrically connect the sensor 37 and the terminal box 41. The control unit 40 can control the rotation direction of the motor 31 in accordance with the signal from the sensor 37. [ The control unit 40 can generate an alarm according to the signal from the sensor 37. [

When a large amount of foreign matter is stacked on the bucket part 25, the rotational movement of the bucket part 25 and the rotational movement of the rotating shaft 33 are stopped, so that the sensor part 37 can move the bolts 35a, Can not be detected. The control unit 40 may control the motor 31 to rotate in the opposite direction of the arrow unless a plurality of bolts 35a and 35d are detected within a preset number of times. When the motor 31 rotates in the direction opposite to the arrow, the bucket part 25 rotates in the opposite direction along the first frame 11, so that the foreign matter in the unobstructed part can be removed by avoiding the clogged area with excessive foreign matter.

3 shows a partial yz cross-sectional view of the sensing unit 30 and the control unit 40 of Fig. As shown in Fig. 3, the bolt portion 35 may include a plurality of bolts 35a, 35b, 35c, 35d, 35e, and 35f. The plurality of bolts 35a, 35b, 35c, 35d, 35e, and 35f may be spaced apart from one another along the circumference of the rotating shaft 33. [ The sensor 37 can sense a plurality of bolts 35a, 35b, 35c, 35d, 35e, and 35f that rotate in accordance with the rotation of the rotating shaft 33 in a predetermined number of times.

35b, 35c, 35d, 35e, and 35f because the sensor 37 can rotate 1/6 in one second when the rotating shaft 33 rotates 10 times in 60 seconds in the direction of the arrow in FIG. Can be detected once per second. For example, the sensor 37 senses the bolt 35d of the rotating shaft 33, senses the bolt 35c after 1 second, and sequentially measures the bolts 35b, 35a, 35f, and 35e ). ≪ / RTI >

35b, 35c, 35d, 35e, 35e, 35e, 35e, 35e, 35e, 35e, 35e, 35e, 35e, 35f can not be detected. When the rotation of the rotating shaft 33 is stopped and the sensor 37 can not detect the plurality of bolts 35a, 35b, 35c, 35d, 35e and 35f for more than 3 seconds, 33 in the direction opposite to the arrow.

The foreign object remover 1 can prevent the motor 31 from being damaged by controlling the direction of the motor 31 in the reverse direction because the sensor 37 can not sense the bolt 35 when the rotating shaft 33 stops. In addition, since the foreign substance remover 1 can remove foreign substances from the bucket part 25 and can stably supply the cooling water to the heat exchanger provided in the industrial facility, it is possible to prevent the industrial facility from being shut down.

However, in the past, when excessive foreign matter has flowed in and the rotating motion of the removing device has been stopped, an overload has occurred in the motor, the motor is broken and the operation of the equipment is stopped and the motor is replaced.

4 is a perspective view of a foreign matter remover 2 according to an embodiment of the present invention. The foreign material remover 2 of FIG. 4 is similar to the foreign material remover 1 of FIG. 1, so that the same reference numerals are used for the same parts, and a detailed description thereof will be omitted.

4, the foreign substance remover 2 may include a main body 10, a removal unit 20, a sensing unit 30, and a control unit 40. As shown in FIG. The removal part 20 may include a support part 22, a screen part 24, a bucket part 25 and a fixing part 27.

The support portion 22 may include a fourth support portion 22a and a fifth support portion 22b. The fourth support portion 22a and the fifth support portion 22b may be connected to the gear housing 13. The fourth support portion 22a and the fifth support portion 22b may be spaced apart from each other on the side surface of the gear housing 13. The fourth support portion 22a and the fifth support portion 22b may be positioned radially with respect to the gear housing 13.

Since the fourth support portion 22a and the fifth support portion 22b are spaced apart from each other, the flow of the cooling water can be deformed into a vortex shape to effectively separate foreign matter contained in the cooling water. Therefore, the amount of foreign matter deposited on the screen unit 24 can be minimized, and the rate of occurrence of malfunctions of the foreign matter remover 2 can be reduced.

The upper portions of the fourth support portion 22a and the fifth support portion 22b may have a shape inclined inward of the body portion 10. The foreign matter of the cooling water is guided to the outward direction of the main body portion 10 by the centrifugal force of the first frame 11 and at the same time the inner surface of the main body portion 10 along the inclined upper shape of the support portions 22a, .

Accordingly, it is possible to induce irregular movement of foreign matter in the cooling water to generate a disturbing fluid flow, so that the cooling water and the foreign matter can be easily separated, thereby increasing the filtration or removal efficiency of the remover 20.

The screen portion 24 may be positioned between the fourth support portion 22a and the fifth support portion 22b. One side of the screen portion 24 may be connected to the side of the fourth support portion 22a. The other side of the screen portion 24 can be connected to the side of the fifth support portion 22b. The screen portion 24 may have a circular arc shape. In the case where the screen unit 24 has an arc shape, since the area for filtering the foreign substance is increased, a larger amount of foreign matter can be removed, and the efficiency of the removal unit 20 can be increased.

The fixing portion 27 may include a first fixing surface 271, a second fixing surface 273, a third fixing surface 275, and a fourth fixing surface 277. The first fixing surface 271 may be connected to the fourth supporting portion 22a. The first fixing surface 271 may fix one side of the screen portion 24 to the fourth supporting portion 22a. The second fixing surface 273 can fix the other side of the screen portion 24 to the fifth supporting portion 22b.

The third fixing surface 275 may be positioned between the first fixing surface 271 and the second fixing surface 273. The third fixing surface 275 may connect the first fixing surface 271 and the second fixing surface 273. The fourth fixing surface 277 may be located on the third fixing surface 275. The fourth fixing surface 277 is connected to the third fixing surface 275 and may have an arc shape. The fourth fixing surface 277 can come into contact with the arc shape of the screen portion 24, so that the screen portion 24 can be firmly supported.

Since the plurality of screen portions 24 are located between the plurality of support portions 22a and 22b, the foreign substance remover 2 can replace or repair only the corresponding portion when an abnormality occurs in the screen portion 24, ) Can be reduced.

It will be understood by those skilled in the art that various changes and modifications may be made without departing from the spirit and scope of the following claims.

10. Main body 11. First frame
13. Gear housing 15. Second frame
17. Hollow tube 19. Outlet
20. Removal 21. Support
22. Support part 23. Screen part
24. Screen portion 25. Bucket portion
27. Fixing 271. First fixing face
273. Second fixing surface 275. Third fixing surface
277. Fourth fixing surface 30. Sensing unit
31. Motor 33. Rotation axis
35. Bolt 37. Sensor
39. Transmission shaft 40. Control unit
41. Terminal box 43. Connecting cable

Claims (4)

A main body portion through which cooling water flows,
A removing unit disposed inside the main body and filtering or removing foreign matter from the cooling water,
A sensing part positioned outside the main body part,
A control unit electrically connected to the sensing unit,
Lt; / RTI >
Wherein,
A first frame positioned in the body portion and extending in a first direction,
A gear housing connected to an upper portion of the first frame,
A second frame extending in a second direction intersecting with the first direction and having one side connected to the gear housing and the other side disposed outside the main body,
A hollow tube connected to the first frame for moving foreign matter, and
A discharge port for discharging the foreign matter of the hollow tube,
Lt; / RTI >
The sensing unit includes:
A motor disposed outside the main body and connected to the second frame,
A rotation axis extending in the second direction and connected to the motor,
A bolt portion positioned on the rotating shaft, and
A sensor for detecting a proximity state of the bolt portion
. The method of claim 1,
Wherein the bolt portion includes a plurality of bolts located along the circumference of the rotating shaft. 3. The method of claim 2,
Wherein the sensor detects the plurality of bolts rotating according to the rotation of the rotating shaft in a predetermined number of times. 4. The method of claim 3,
Wherein the controller reverses the rotation direction of the motor when the plurality of bolts in the sensor are not detected within a predetermined number of times within the predetermined time.

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