KR20170028611A - Apparatus for removing dust - Google Patents

Apparatus for removing dust Download PDF

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Publication number
KR20170028611A
KR20170028611A KR1020150125432A KR20150125432A KR20170028611A KR 20170028611 A KR20170028611 A KR 20170028611A KR 1020150125432 A KR1020150125432 A KR 1020150125432A KR 20150125432 A KR20150125432 A KR 20150125432A KR 20170028611 A KR20170028611 A KR 20170028611A
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KR
South Korea
Prior art keywords
width direction
opening
crushing
water tank
longitudinal direction
Prior art date
Application number
KR1020150125432A
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Korean (ko)
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KR101797977B1 (en
Inventor
천기태
이종인
Original Assignee
주식회사 포스코
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Priority to KR1020150125432A priority Critical patent/KR101797977B1/en
Publication of KR20170028611A publication Critical patent/KR20170028611A/en
Application granted granted Critical
Publication of KR101797977B1 publication Critical patent/KR101797977B1/en

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    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F28—HEAT EXCHANGE IN GENERAL
    • F28G—CLEANING OF INTERNAL OR EXTERNAL SURFACES OF HEAT-EXCHANGE OR HEAT-TRANSFER CONDUITS, e.g. WATER TUBES OR BOILERS
    • F28G3/00—Rotary appliances
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F28—HEAT EXCHANGE IN GENERAL
    • F28C—HEAT-EXCHANGE APPARATUS, NOT PROVIDED FOR IN ANOTHER SUBCLASS, IN WHICH THE HEAT-EXCHANGE MEDIA COME INTO DIRECT CONTACT WITHOUT CHEMICAL INTERACTION
    • F28C1/00—Direct-contact trickle coolers, e.g. cooling towers
    • F28C1/02—Direct-contact trickle coolers, e.g. cooling towers with counter-current only
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F28—HEAT EXCHANGE IN GENERAL
    • F28F—DETAILS OF HEAT-EXCHANGE AND HEAT-TRANSFER APPARATUS, OF GENERAL APPLICATION
    • F28F27/00—Control arrangements or safety devices specially adapted for heat-exchange or heat-transfer apparatus
    • F28F27/003—Control arrangements or safety devices specially adapted for heat-exchange or heat-transfer apparatus specially adapted for cooling towers
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F28—HEAT EXCHANGE IN GENERAL
    • F28G—CLEANING OF INTERNAL OR EXTERNAL SURFACES OF HEAT-EXCHANGE OR HEAT-TRANSFER CONDUITS, e.g. WATER TUBES OR BOILERS
    • F28G15/00—Details
    • F28G15/04—Feeding and driving arrangements, e.g. power operation
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F28—HEAT EXCHANGE IN GENERAL
    • F28G—CLEANING OF INTERNAL OR EXTERNAL SURFACES OF HEAT-EXCHANGE OR HEAT-TRANSFER CONDUITS, e.g. WATER TUBES OR BOILERS
    • F28G3/00—Rotary appliances
    • F28G3/06—Rotary appliances having articulated tools, e.g. assembled in chain manner
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F28—HEAT EXCHANGE IN GENERAL
    • F28G—CLEANING OF INTERNAL OR EXTERNAL SURFACES OF HEAT-EXCHANGE OR HEAT-TRANSFER CONDUITS, e.g. WATER TUBES OR BOILERS
    • F28G3/00—Rotary appliances
    • F28G3/10—Rotary appliances having scrapers, hammers, or cutters, e.g. rigidly mounted
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F28—HEAT EXCHANGE IN GENERAL
    • F28G—CLEANING OF INTERNAL OR EXTERNAL SURFACES OF HEAT-EXCHANGE OR HEAT-TRANSFER CONDUITS, e.g. WATER TUBES OR BOILERS
    • F28G3/00—Rotary appliances
    • F28G3/16—Rotary appliances using jets of fluid for removing debris

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Physics & Mathematics (AREA)
  • Thermal Sciences (AREA)
  • Disintegrating Or Milling (AREA)

Abstract

The present invention discloses an apparatus for removing foreign substances, including: a trolley installed on a floor of a water tank such that the trolley is able to move longitudinally; a breaking portion installed in the trolley to be rotatable based on a width direction, such that at least a part thereof is inserted to an inner part of an opening of the floor; a driving portion connected to the breaking portion, and applying rotary power; and a removing portion formed to be able to spray a fluid downwards and installed in the trolley to be spaced longitudinally from the breaking portion. While supplying cooling water to the water tank and draining the cooling water downwards, the present invention may easily break and remove foreign substances accumulated on the floor of the water tank and attached to an opening of a floor.

Description

Apparatus for removing dust

More particularly, the present invention relates to a foreign matter removing apparatus which is capable of easily removing foreign matters adhering to the opening of the bottom portion while accumulating on the bottom portion of the upper water tank while supplying cooling water to the upper water tank of the structure, Removing device.

In various industrial sites including steel mills, cooling water that has undergone heat exchange in the facility is flowed downward to overcome supply and demand constraints of water resources and to prevent heat pollution of water resources. As the apparatus, a cooling tower is provided.

As shown in, for example, Korean Patent Laid-Open Publication No. 10-2010-0132182, a cooling tower passes cooling water, which is contained in an upper water tank, through an opening provided in a bottom portion of an upper water tank and flows the water into an eliminator or a filling material, For example, in a cross flow manner.

On the other hand, various kinds of foreign substances including sludge and dust are mixed in the cooling water that has undergone heat exchange in the facility. Since the foreign matter mixed into the cooling water has a considerable cost for removing all the foreign substances in the process of treating the cooling water, generally only a certain amount of cooling water is treated and only a part of the foreign matter is removed and then supplied to the cooling tower.

Therefore, some foreign matter remains in the cooling water supplied to the cooling tower, which flows into the upper water tank of the cooling tower and accumulates at the bottom of the upper water tank. The foreign matter accumulated in the bottom of the upper water tank is blocked in the process of flowing the cooling water into the opening formed in the bottom of the upper water tank. When the bottom opening of the upper water tank is clogged during operation of the cooling tower, the cooling water is dripped from the upper water tank and overflows to the periphery of the cooling tower, thereby contaminating the environment and deteriorating the collection and circulation flow of the cooling water, .

KR 10-2010-0132182 A

The present invention provides a foreign matter removing device capable of breaking a foreign matter introduced into a bottom portion of an upper water tank and attached to an opening of a bottom portion and pushing a powder of broken foreign matter into the lower side of the opening.

A foreign substance removing apparatus according to an embodiment of the present invention includes: a bogie installed on a bottom of a water tank so as to be movable in a longitudinal direction; A crushing portion mounted on the truck so as to be rotatable about a width direction and at least a part of which is inserted into the opening of the bottom portion; A driving unit connected to the crushing unit to apply rotational force; And a damper which is formed to be capable of jetting the fluid downward, and is spaced apart from the crushing portion in the longitudinal direction and mounted on the bogie.

The bogie comprises a pair of frames extending in the longitudinal direction and spaced apart in the width direction; At least one support bar extending in the width direction and spaced apart from each other in the longitudinal direction to connect the pair of frames; And a wheel mounted on both ends of each of the pair of frames.

Wherein the crushing portion is formed to extend in the width direction and is disposed between the pair of frames; A crushing protrusion radially projecting from an outer circumferential surface of the cylinder; A rotating shaft mounted through the tubular body in the width direction and having both ends connected to the pair of frames; And a first sprocket formed at one end of the rotating shaft.

The crushing protrusions can surround the outer circumferential surface of the cylinder at a plurality of positions spaced from each other in the width direction and the distance in the width direction of the crushing protrusion can correspond to the distance in the width direction of the opening of the bottom portion, The distance in the longitudinal direction of the shredding protrusion may correspond to the distance in the longitudinal direction of the opening of the bottom portion.

Wherein the removing portion includes a plurality of nozzles spaced apart from each other in the width direction and mounted on the supporting bar so as to face the opening of the bottom portion; A first pipe extending in a width direction and communicating with the plurality of nozzles, respectively; A second pipe connected to the first pipe; And a valve mounted on the second pipe.

The spacing distance in the width direction of the plurality of nozzles may correspond to the spacing distance in the width direction of the opening of the bottom portion.

And a scraper which is formed to extend in the width direction and which is mounted on the carriage between the crushing portion and the removing portion and whose lower end is in contact with the bottom portion, And the upper end thereof can be rotatably mounted on the carriage.

According to the embodiment of the present invention, foreign matter attached to the opening of the bottom portion can be easily removed by accumulating on the bottom portion of the upper water tank while supplying cooling water to the upper water tank of various structures and flowing the water downward.

For example, in the case of applying to a cooling tower, which is a structure in which cooling water that has undergone heat exchange in a facility is flowed down while cooling it in contact with outside air and then supplied to the facility for circulation, a foreign material removal device is installed in the upper water tank of the cooling tower, The foreign matter adhering to the bottom opening can be directly crushed and the powder of the crushed foreign material can be easily removed by pushing the powder to the lower side of the opening. The removal process of the foreign matter can be performed during the operation of the cooling tower.

Accordingly, it is possible to smoothly control the collection and circulation flow of the cooling water between the cooling tower and the facility, thereby preventing the environmental pollution due to the falling of the cooling water and the cooling efficiency of the facility.

BRIEF DESCRIPTION OF THE DRAWINGS Fig. 1 is a view for explaining the entire structure of a cooling tower to which an embodiment of the present invention is applied; Fig.
2 is a view for explaining a sectional structure of a cooling tower to which an embodiment of the present invention is applied;
3 is a view for explaining a foreign substance removing apparatus according to an embodiment of the present invention.
4 is a view for explaining a state where a foreign matter removing apparatus according to an embodiment of the present invention is installed on a cooling tower.
5 to 6 are views for explaining the operation of the foreign substance removing apparatus according to the embodiment of the present invention.

Hereinafter, embodiments of the present invention will be described in more detail with reference to the accompanying drawings. However, the present invention is not limited to the embodiments described below, but may be embodied in various forms. It is to be understood that both the foregoing general description and the following detailed description of the present invention are exemplary and explanatory and are intended to provide further explanation of the invention as claimed. BRIEF DESCRIPTION OF THE DRAWINGS The drawings may be exaggerated or enlarged to illustrate embodiments of the invention, wherein like reference numerals refer to like elements throughout.

Hereinafter, an embodiment of the present invention will be described with reference to a cooling tower, which is a structure in which coolant having undergone heat exchange in a facility is flowed down to cool it in contact with outside air, and then supplied to the facility for circulation. However, the embodiment of the present invention can be applied variously as a foreign substance removing apparatus of various tanks having a drain hole on the bottom surface.

The longitudinal direction, the width direction, and the height direction used in the following description may be, for example, the x-axis direction, the y-axis direction, and the z-axis direction, respectively, for ease of explanation of the structure of the foreign substance removing apparatus according to the embodiment of the present invention . The definition of such a direction is an example for explaining the embodiment of the present invention, and each direction may be variously defined in the above-described manner within the same category as the meaning of each direction.

FIG. 1 is a schematic view showing the entire structure of a cooling tower to which an embodiment of the present invention is applied, and FIG. 2 is a schematic view showing a sectional structure in which one side of the cooling tower in FIG. 1 is cut in a direction parallel to a y-z plane. First, referring to Figs. 1 and 2, a cooling tower to which an embodiment of the present invention is applied will be described.

The cooling tower 1 includes a main body 11, a supply pipe 12, an upper water tank 13, an eliminator 14, a blower 15, a lower water tank 16 and a discharge pipe 17. The main body 11 forms the outer wall of the cooling tower 1 and maintains the structure and shape of the cooling tower 1. [ One end of the supply pipe 12 is connected to a storage tank (not shown), and the other end is extended to the upper side of the main body 11. A plurality of openings 13a are formed in the upper surface of the main body 11 so as to be spaced apart from each other in the width direction of the bottom portion of the upper water tub 13 Through a plurality of positions spaced from each other in the longitudinal direction and the width direction.

The supply pipe opening portion 12a is mounted through the outer peripheral surface of the supply pipe 12 from above each of the plurality of upper water tanks 13, respectively. The eliminator 14 is spaced from the inside of the main body 11 to the lower side of the upper water tank 13 and is provided in a plurality corresponding to the number of the upper water tanks 13 to be spaced apart from each other in the width direction and the longitudinal direction. The sidewall of the main body 11 facing the elevator 14 is opened by a predetermined area, and the louver 11a is mounted.

The blower 15 is installed to penetrate the upper portion of the main body 11, and a plurality of blower units 15 are provided in the longitudinal direction at a central position in the width direction of the upper surface of the main body 11. The lower water tank 16 is mounted on the lower portion of the main body 11 and the discharge pipe 17 is mounted through the lower water tank 16 through the center position of the lower water tank 16.

Cooling water having undergone heat exchange in various facilities is temporarily stored in a storage tank, and then is collected in an upper water tank (13) through a supply pipe (12). Thereafter, the cooling water passes through the bottom opening 13a of the upper water tank 13 and flows downward in the form of droplets, passes through the eliminator 14, is collected in the lower water tank 16, .

The outside air is sucked into the side wall louver 11a of the main body 11 and exhausted to the upper side of the blower 15 via the inside of the main body 11 while the cooling water flows as described above. As a result, the outside air is brought into contact with the cooling water passing through the eliminator 14 in a cross flow manner, and the cooling water is cooled as the heat exchange between the cooling water and the outside air is made in this contacting process.

The cooled cooling water is supplied to the facility, used for cooling the facility, temporarily stored in the storage tank, and then circulated to the cooling tower 1 again. As described above, the cooling water W is continuously circulated between the facility and the cooling tower 1 and reused.

On the other hand, various kinds of foreign substances including sludge and dust are mixed in the cooling water that has undergone heat exchange in the facility. Therefore, before the heat-exchanged cooling water is circulated to the cooling tower 1, it is necessary to remove the foreign substances from the cooling water, but it is practically impossible to remove all of the foreign substances from the circulating cooling water. Therefore, even if a considerable amount of foreign matter is removed from the cooling water, a part of the foreign matter remains in the cooling water.

Part of the foreign matter remains in the cooling water W supplied to the cooling tower 1 and flows into the upper water tank 13 of the cooling tower 1 and accumulates in the bottom portion of the upper water tank 13. The foreign substances accumulated in the bottom portion of the upper water tank 13 are continuously adhered to the inner wall of the opening 13a in the process of flowing the cooling water to the opening 13a, thereby closing the opening 13a.

During operation of the cooling tower 1, when the bottom opening 13a of the upper water tank 13 is clogged, the cooling water overflows to the upper side of the upper water tank 13 and overflows to the vicinity of the cooling tower 1, But also deteriorates the collection and circulation flow of the cooling water, thereby lowering the cooling efficiency of the equipment.

The foreign substance removing apparatus according to the embodiment of the present invention is provided in the upper water tank 13 and serves to break and remove the foreign substances adhered to the opening 13a so that the opening 13a of the upper water tank 13 is in contact with the foreign matter It is possible to improve the cooling water collecting and circulating flow between the cooling tower 1 and the facility, so that the cooling efficiency of the facility can be remarkably improved and the environmental pollution due to the outflow of the cooling water can be prevented.

FIG. 3 is a schematic view showing the entire structure of a foreign matter removing apparatus according to an embodiment of the present invention. FIG. 4 is a view showing a state where the foreign matter removing apparatus according to the embodiment of the present invention is installed on a cooling tower to which the embodiment of the present invention is applied Fig. Next, a foreign matter removing apparatus 100 according to an embodiment of the present invention will be described in detail with reference to FIGS. 3 and 4. FIG.

The foreign material removing apparatus 100 may further include a scraper 150 and a control unit 160, including a bogie 110, a crusher 120, a driving unit 130 and a removing unit 140 (X-axis direction) on the bottom of an upper water tank 13 (hereinafter referred to as a "water tank" for convenience of explanation) of the cooling tower 1 And is provided to the cooling tower 1 so as to open the water tank opening 13a.

The bogie 110 serves as a body of the foreign material removing apparatus 100 and is placed on the bottom of the water tank and travels in the longitudinal direction. The bogie 110, the removing unit 140 and the scraper 150 are disposed in the longitudinal direction .

The carriage 110 may include a pair of frames extending in the longitudinal direction and spaced apart in the width direction and each having wheels 111 mounted on both ends thereof, A bar is connected to form a skeleton. For example, the support bar may include a plurality of support bars 112 and a plurality of second support bars 114, each extending in the width direction (y-axis direction) and spaced apart from each other in the longitudinal direction, .

The first support bar 112 may be formed, for example, of a plate type so that both ends thereof can be mounted on the pair of frame upper surfaces, and the upper and lower surfaces of the first support bar 112 are used to remove Can be stably mounted and supported.

On the other hand, in the modification of the present invention, the first support bar 112 can be mounted on the pair of frames so as to be rotatable in the width direction. For example, a hinge (not shown) may be provided between both ends of the first support bar 112 and the pair of frames so that the first support bar 112 can be pin-supported on the upper surface of each of the pair of frames, The linear motor can be connected to a predetermined position of the first support bar 112 spaced from the hinge in the longitudinal direction and the height direction (z-axis direction). In this case, the first support bar 112 and the removal unit 140 mounted on the first support bar 112 can be rotated about the width direction by the hinge, so that the foreign matter removal operation of the removal unit 140 can be performed more effectively.

The second support bar 114 is formed, for example, of a plate type so that a pair of both end portions can be mounted on the upper surface of the frame, and the drive unit 130 is stably mounted on the upper surface of the second support bar 114 .

A pair of support blocks 113 are provided between the first support bar 112 and the second support bar 114 so as to face each other in the width direction and can be mounted on the pair of frames, respectively. The crushing part 120 may be rotatably mounted on the pair of support blocks 113 and supported.

Meanwhile, in the modification of the present invention, the crushing part 120 can be mounted on the pair of support blocks 113 so as to be slidable in the height direction. For example, a slot (not shown) having a length in the height direction may be formed in the support block 113 so as to penetrate through the support block 113 in the width direction, As shown in FIG. In this case, the crushing unit 120 slides in the height direction while rotating about the width direction, and the crushing unit 120 further applies a force or an impact equal to its own weight to the lower side due to the vertical vibration of the crushing unit 120 . Therefore, the foreign matter clogging the opening 13a of the water tank by the height at which the crushing unit 120 slides can be applied with a force or an impact, so that the foreign matter crushing operation of the crushing unit 120 can be performed more effectively.

The crushing unit 120 serves to crush the foreign substances adhered to the bottom opening 13a of the water tank. To this end, the crushing unit 120 is mounted on the car 110 so as to be rotatable about the width direction, And can be inserted into the opening 13a.

The crushing unit 120 includes a cylinder 121 extending in the width direction and disposed between the pair of frames, a crushing protrusion 122 radially projecting from the outer circumferential surface of the cylinder 121, And a first sprocket 124 formed at one end of the rotating shaft 123. The first sprocket 124 may be formed to have a substantially rectangular shape.

The cylindrical body 121 serves as a body of the crushing part 120 and may be cylindrical in shape extending in the width direction and may be mounted on the rotating shaft 123 and rotated together with the rotating shaft 123. The width in the width direction of the tubular body 121 can correspond to the width in the width direction of the bottom portion of the water tank and the diameter in the longitudinal direction or the height direction of the tubular body 121 can be, And the number of the crushing protrusions 122 surrounding the outer circumference of the crankshaft 121. Both ends of the rotating shaft 123 can be rotatably mounted through the support block 113 of the carriage 110 and receive rotational force from the first sprocket 124 to rotate the cylinder 121 . A bearing is provided between the support block 113 and the rotation shaft 123 so that the rotation shaft 123 can be smoothly rotated.

The crushing protrusions 122 are wound around the outer circumferential surface of the cylinder 121 at a plurality of positions spaced apart from each other in the width direction, for example, as a gear structure formed on the outer circumferential surface of the pinion gear, A plurality of protrusions may be formed. Each of the projecting lengths of the shredding protrusion 122 may be formed such that the end of the shredding protrusion 122 passes through the opening 13a of the water tank located immediately below the cylindrical body 121. [

The separation distance in the width direction of the shredding protrusion 122 may correspond to the separation distance in the width direction of the opening 13a of the bottom of the water tank. Thus, the shredding protrusion 122 can penetrate the opening 13a of the bottom portion of the water tank arranged in the width direction at once and can quickly open the opening 13a. The distance in the longitudinal direction of the shredding protrusion 122 may correspond to the distance in the longitudinal direction of the opening 13a of the bottom of the water tank. Thus, when the cylindrical body 121 rotates about the rotational axis 123 in the width direction and moves in the longitudinal direction, the openings 13a of the bottom of the water tanks arranged in the longitudinal direction by the respective shatter protrusions 122 are sequentially passed through So that the respective openings 13a can be efficiently cleared.

For example, the bottom opening 13a of the water tank serves as a toothed portion of the rack gear, and the crushing protrusion 122 on the outer periphery of the cylinder 131 serves as a pinion gear, The crushing protrusion 122 engages with the opening 13a and can be pulled up and down in the opening 13a when the cylindrical body 121 rotates.

The first sprocket 124 is mounted on one end of the rotating shaft 123 and receives the driving force from the driving unit 130 to rotate and rotate the rotating shaft 123.

With the above-described structure, the rotation of the crushing portion 120 can be used together with the crushing of the foreign matter blocking the opening 13a and the movement of the crane 110 in the longitudinal direction. This makes it possible to simplify the structure of the entire apparatus.

The driving unit 130 may be a variety of motors capable of generating a rotational force using, for example, electricity, compressed air, or hydraulic pressure, and is connected to the first sprocket 124 of the crushing unit 120 to apply rotational force. The driving unit 130 may include a motor 131, a rotation output stage 132, a second sprocket 133, and a power transmission chain 134.

The motor 131 is installed in the width direction on the upper surface of the second support bar 114 of the carriage 110 to selectively output the forward rotation and the reverse rotation and the rotation outputterminal 132 is connected to the crusher 120, And a second sprocket 133 may be mounted at an end of the rotation output stage 132. The second sprocket 133 may be provided at one end of the motor 131 in the width direction of the motor 131 close to the first sprocket 124 of the rotation output stage 132. [ The power transmission chain 134 can be engaged by surrounding the outer periphery of the first sprocket 124 and the outer periphery of the second sprocket 133 and can transmit the rotational force of the second sprocket 133 to the first sprocket 124 It plays a role.

The rotating force provided by the driving unit 130 rotates the crushing unit 120 so that the foreign material crushing in the opening 13a and the movement of the carriage 110 in the longitudinal direction can be performed together.

The removal part 140 is formed to be able to inject a fluid such as air downward and can be mounted on the first support bar 112 of the carriage 110 in the longitudinal direction away from the crush part 120. The removing unit 140 includes a plurality of nozzles 141 that are mounted on the lower surface of the first supporting bar 112 so as to be spaced apart from each other in the width direction so as to face the opening 13a of the bottom of the water tank, A first pipe 142 mounted on the upper surface of the first support bar 112 and communicating with the plurality of nozzles 141, a second pipe 143 connected to the first pipe 142, And a valve 144 mounted to the second pipe 143. At least one predetermined electric motor (not shown) is provided at one side of the second pipe 143. The electric motor is supported at a predetermined position on the car 110, and the second pipe 143 is wound around the second pipe 143, The second pipe 143 can be stably supported when the first pipe 110 moves.

An air tank (not shown) may be connected to the end of the second pipe 143 as a fluid supply source. The compressed air stored in the air tank is controlled at a predetermined pressure and flow rate by the control of a valve 144, for example, a solenoid valve, (141). ≪ / RTI >

The spacing distance of the plurality of nozzles 141 in the width direction can correspond to the distance in the width direction of the opening 13a of the bottom portion of the water tank, that is, the upper side of the bottom opening 13a of the water tank arranged in the width direction So that the compressed air can be smoothly injected to the lower sides of the upper and lower sides. The fluid, e.g., compressed air, ejected from the nozzle 141 is used to completely remove the powder of the crushed foreign matter remaining in the opening 13a of the water tank to the underside of the opening 13a.

The scraper 150 may be in the shape of an inclined plate and is formed to extend in the width direction and is mounted on the carriage 110 between the crushing portion 120 and the removing portion 140, As shown in FIG. The scraper 150 may be disposed at a downward slope in the direction toward the removal unit 140 from the crushing unit 120 and the upper end may be rotatably mounted inside the pair of frames of the bogie 110. [

The scraper 150 collects the powder or debris of the foreign matter flowing into the bottom of the water tank into the opening 13a again in the course of the crushing protrusion 122 of the crushing part 120 passing through the foreign matter in the opening 13a and crushing it, And also serves to scrape accumulated foreign matter remaining on the bottom of the water tank and collect it in the opening 13a. At this time, the movement of each foreign matter powder into the opening 13a can be performed more smoothly by the flow of the cooling water toward the opening 13a of the bottom portion of the water tank, which is partly opened by the crushing member 122.

By the scraper 150, foreign substances remaining in the bottom of the water tank can be collected into the opening 13a. The foreign substances collected into the opening 13a can be extruded to the lower side of the opening 13a by the compressed air injected from the nozzle 141 and removed.

The control unit 160 is connected to the valve 144 and the driving unit 130 of the removal unit 140 and controls the respective operations of the removal unit 140. The control unit 160 controls the output of the driving unit 130, It is possible to control the running direction and the running speed such as forward and backward movement with respect to the longitudinal direction and control the opening degree of the valve 144 to control the injection pressure and the injection amount of the compressed air injected to the nozzle 141. [

Particularly, the control unit 160 controls the opening / closing operation of the valve 141 to open the valve 144 selectively only when the nozzle 141 is located above the openings 13a of the bottom of the water tank, corresponding to the position of the nozzle 141 The opening degree of the valve 141 can be controlled to be opened and controlled, and the efficiency with which the foreign matter powder is extruded and removed can be further improved.

Meanwhile, the controller 160 may include a timer, and may be configured to operate the apparatus in accordance with a predetermined time, i.e., a work schedule.

FIGS. 5 to 6 are schematic views illustrating an operation of the foreign substance removing apparatus according to the embodiment of the present invention. FIG. 5 is a process diagram showing a state of each constituent unit at a predetermined time point at which any one of the crushing protrusions of the crushing unit is inserted into the opening and the foreign substance is crushed, and FIG. 6 is a cross- The process of removing the extraneous material by crushing and collecting the foreign materials is performed in the process of removing the extruded material.

Next, with reference to FIGS. 3, 4, and 5 to 6, a foreign matter removing method according to an embodiment of the present invention will be described. A method for removing foreign matter includes the steps of pushing a crushing member into a bottom opening of a water tank and crushing the crushed material into the opening of the bottom of the water tank and pushing the powder of foreign matter flowing into the bottom of the water tank back into the opening in the opening during the crushing process, And injecting the fluid to extrude and remove the powder of the foreign substance downward.

First, the bogie 110 moves and moves the crusher 120, the scraper 150, and the removing unit 140 in the longitudinal direction. At this time, the movement of the bogie 110 is performed by the reaction force generated by the shredding protrusion 122 pushing the opening 13a of the bottom of the water tank in the longitudinal direction by the rotation of the shredding part 120. [

During the movement of the carriage 110, as the cylinder 121 rotates, the crushing member 122 rotates and advances in the longitudinal direction to sequentially pass through the respective openings 13a. The foreign matter S blocking the opening 13a penetrates the crushing member 122 and is crushed so that a part of the foreign matter powder S 'falls down and is removed and the remaining foreign matter powder S' And is dispersed around the opening 13a. The powder S 'remaining on the bottom of the water tank is pushed back into the opening 13a by the movement of the scraper 150 and then is pressed into the opening 13a by the compressed air injected from the nozzle 141 It is extruded downward and completely removed.

The above-described processes can be performed while the cooling water is continuously supplied to the water tank, that is, while the cooling tower 1 is operating, or separately after the cooling water W is drained from the water tank 13. [ When foreign matter is removed during the operation of the cooling tower 1 without stopping the cooling tower 1, the foreign matter powder is discharged downward along with the cooling water by utilizing the flow of the cooling water W, It is possible to remove foreign matter more effectively by using not only the pressure but also the flow pressure of the cooling water. Such a foreign matter removing operation can be repeatedly performed periodically or periodically during the operation of the cooling tower 1.

As described above, in the embodiment of the present invention, the crushing member 122 is fitted into the opening 13a of the upper water tank 13 of the cooling tower 1, so that the foreign matter S blocking the bottom opening 13a of the upper water tank is directly crushed The powder S 'of the crushed foreign substance is scraped into the opening 13a of the bottom portion by the scraper 150 and then air is sprayed onto the powder S' of the foreign substance gathered at the opening of the bottom portion, ) To the lower side of the frame.

Therefore, it is possible to prevent the opening of the water tank from becoming blocked due to the foreign substance, thereby preventing the cooling water from overflowing to the outside of the water tank, and consequently, the circulating flow of the cooling water can be stably controlled , The cooling efficiency of the equipment can be improved.

It should be noted that the above-described embodiments of the present invention are for the purpose of illustrating the present invention and not for the purpose of limitation of the present invention. It will be understood by those skilled in the art that various changes in form and details may be made therein without departing from the spirit and scope of the invention as defined by the appended claims. It will be possible.

13: Upper water tank 13a:
100: foreign matter removing device 110:
120: crushing section 130:
140: Remove 150: Scraper
160:

Claims (9)

A bogie installed at the bottom of the water tank so as to be movable in the longitudinal direction;
A crushing portion mounted on the truck so as to be rotatable about a width direction and at least a part of which is inserted into the opening of the bottom portion;
A driving unit connected to the crushing unit to apply rotational force; And
And a removing unit formed to be capable of ejecting the fluid downward and being spaced apart from the crushing unit in the longitudinal direction and mounted on the bogie. The method according to claim 1,
The bogie comprises:
A pair of frames extending in the longitudinal direction and spaced apart in the width direction;
At least one support bar extending in the width direction and spaced apart from each other in the longitudinal direction to connect the pair of frames; And
And a wheel mounted on both ends of each of the pair of frames. The method of claim 2,
The crusher
A cylinder extending in the width direction and disposed between the pair of frames;
A crushing protrusion radially projecting from an outer circumferential surface of the cylinder;
A rotating shaft mounted through the tubular body in the width direction and having both ends connected to the pair of frames; And
And a first sprocket formed at one end of the rotating shaft. The method of claim 3,
Wherein the shredding protrusions surround the outer circumferential surface of the cylinder at a plurality of positions spaced apart from each other in the width direction. The method of claim 4,
The distance in the width direction of the shredding projections corresponds to the distance in the width direction of the opening of the bottom portion,
And the distance in the longitudinal direction of the crushing projections corresponds to the distance in the longitudinal direction of the opening of the bottom portion. The method of claim 2,
The removing unit
A plurality of nozzles spaced apart from each other in the width direction and mounted on the support bar so as to face the opening of the bottom portion;
A first pipe extending in a width direction and communicating with the plurality of nozzles, respectively;
A second pipe connected to the first pipe;
And a valve mounted on the second pipe. The method of claim 6,
And the spacing distance in the width direction of the plurality of nozzles corresponds to the spacing distance in the width direction of the opening of the bottom portion. The method according to claim 1,
And a scraper which is formed to extend in the width direction and which is mounted on the carriage between the crushing portion and the removing portion and whose lower end is in contact with the bottom portion. The method of claim 8,
Wherein the scraper is inclined downward in a direction toward the removal part from the crushing part and the upper end is rotatably mounted on the carriage.
KR1020150125432A 2015-09-04 2015-09-04 Apparatus for removing dust KR101797977B1 (en)

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KR102066431B1 (en) * 2018-08-21 2020-01-15 주식회사 에스에프에이 Vehicle and vehicle system having the same

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KR20100132182A (en) 2009-06-09 2010-12-17 주식회사 경인기계 Cooling tower

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JP2000291904A (en) * 1999-04-06 2000-10-20 Babcock Hitachi Kk Device and method for removing substance produced and adhered on inner wall of steam pipe
KR101202920B1 (en) * 2011-11-23 2012-11-19 강흥묵 Apparatus for Removing Adhesive Foreign From Inner Wall

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Publication number Priority date Publication date Assignee Title
KR20100132182A (en) 2009-06-09 2010-12-17 주식회사 경인기계 Cooling tower

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR101981461B1 (en) * 2017-11-22 2019-05-24 주식회사 포스코 Cooling tower and cooling method for fluid

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