JP2012083022A - Washing apparatus for cooling tower louver - Google Patents

Abstract

PROBLEM TO BE SOLVED: To easily and safely wash a cooling tower louver.SOLUTION: A washing apparatus includes: a tubular washing pipe 2 that is vertically extending, disposed facing the louvre 101 of the cooling tower 100 and where high pressure water for cleaning is supplied therein; a plurality of washing nozzles 3 that are vertically disposed in the washing pipe 2 and eject the high pressure water supplied to the washing pipe 2 toward the louvre 101; and a movable washing wheeled cart 5 mounted with the washing pipe 2.

Description

  The present invention relates to a cooling tower louver cleaning device for cleaning a cooling tower louver with high-pressure water or the like.

  As the spray water scatters, dirt substances outside the tower such as mud or silica adhere to the louver of the cooling tower. In particular, silica accumulates as a solid, narrows the flow path of outside air (intake outside air) to be taken in, and reduces the cooling capacity of the cooling tower due to a reduction in the amount of outside air taken in. For this reason, it is necessary to periodically clean the louver and secure the flow path.

  In addition, in order to safely and easily check a cooling tower installed at a high place, a technique is known in which a ladder is installed on the outer wall of the cooling tower so as to be movable in the horizontal direction (see, for example, Patent Document 1). .) Furthermore, in order to prevent the sprayed water from being frozen and clogged around the louver, a technique is known in which a part of the cooling water is sprayed around the lower part of the inner wall of the cooling tower to melt the ice (for example, , See Patent Document 2).

Japanese Patent Laid-Open No. 08-178586 JP 2005-207682 A

  By the way, there are cases where it is necessary to install a cooling tower on the rooftop of a small area such as an urban area. In such a case, it is difficult to secure a walking space for maintenance work at a high place. . Also, in a place where the site area is small, the cooling tower cannot be installed widely in a plane, and it is necessary to set and design a high height to ensure the cooling capacity for cooling water. In this way, the work to clean the louver under the working conditions where the work space is small and high is heavy, and the work is heavy on the operator. Many costs are required for security equipment, such as requiring handrails to prevent falling.

  Also, in the technique of Patent Document 1, an operator must climb a ladder installed in a cooling tower to perform a louver cleaning operation, which places a heavy burden on the operator and is a measure for ensuring safety. Countermeasures are required. Furthermore, with the technique of Patent Document 2, the cooling water is only sprinkled with the nozzle fixed to a fixed position that is a part of the inner wall of the cooling tower, and the entire louver cannot be washed.

  SUMMARY OF THE INVENTION An object of the present invention is to provide a cooling tower louver cleaning device capable of easily and safely cleaning a cooling tower louver.

  In order to solve the above-mentioned problem, the invention according to claim 1 is a cleaning pipe that is tubular and extends in the vertical direction, is disposed to face the louver of the cooling tower, and is supplied with a high-pressure fluid for cleaning. , A plurality of cleaning pipes arranged in the vertical direction, a cleaning nozzle that injects the high-pressure fluid supplied into the pipe of the cleaning pipe toward the louver, and a movable cleaning carriage equipped with the cleaning pipe And a cooling tower louver cleaning device.

  According to this invention, when a high-pressure fluid such as high-pressure water is supplied to the cleaning pipe, the high-pressure fluid is ejected from each cleaning nozzle toward the louver, and the louver is cleaned. In addition, since a plurality of cleaning nozzles are arranged in the vertical direction, the louvers in the height direction can be cleaned in a lump. Further, by moving the cleaning carriage, the cleaning pipe and the cleaning nozzle move, and the desired position of the louver is cleaned.

  According to a second aspect of the present invention, in the cleaning apparatus according to the first aspect of the present invention, the cleaning apparatus includes an injection angle changing unit capable of adjusting an injection angle of the cleaning nozzle at a position remote from the cleaning nozzle.

  According to the present invention, by adjusting the spray angle of the cleaning nozzle by the spray angle changing means, the respective parts such as the front surface and the back surface of the louver are cleaned without the operator performing an operation at a high place.

  A third aspect of the present invention is the cleaning apparatus according to the first or second aspect, further comprising guide means for guiding the cleaning carriage along the louver.

  According to the first aspect of the present invention, since the high pressure fluid is ejected toward the louver from the plurality of cleaning nozzles arranged in the vertical direction, the worker does not climb the ladder or perform the work. Even the louver can be washed. Moreover, since the washing position can be changed by the washing carriage, the entire louver can be washed appropriately. Thus, it becomes possible to clean the louver of the cooling tower easily and safely, and it is only necessary to have a space in which a washing carriage equipped with a washing pipe can be disposed, so that a walkway space and the like are secured. Even in a difficult working environment, the louver can be cleaned using this apparatus.

  According to the second aspect of the present invention, each part of the louver can be properly cleaned by changing the spray angle of the cleaning nozzle. Moreover, since the injection angle can be changed remotely, the entire louver can be cleaned easily and safely.

  According to the third aspect of the present invention, since the cleaning carriage is guided along the louver by the guide means and moves, it can be easily moved, and the positional relationship between each cleaning nozzle and the louver is always properly set. Thus, the entire louver can be properly cleaned.

It is a front view which shows the state in which the washing | cleaning apparatus of the cooling tower louver which concerns on embodiment of this invention was installed. It is a side view of the washing | cleaning apparatus of FIG. It is a schematic plan view of the cooling tower in which the washing | cleaning apparatus of FIG. 1 is installed. It is the front view (a) and side view (b) which show the washing trolley periphery of the washing | cleaning apparatus of FIG. It is a side view which shows the washing nozzle periphery of the washing | cleaning apparatus of FIG. It is a figure which shows the attachment or detachment state of the socket and plug in FIG. It is a figure which shows the state which operated the operating stick of the washing | cleaning apparatus of FIG. It is the top view (a) which shows the relationship between the guide rail and guide unit of the washing | cleaning apparatus of FIG. 1, and its AA sectional drawing (b).

  The present invention will be described below based on the illustrated embodiments.

  1 and 2 are a front view and a side view showing a cooling tower louver cleaning device (hereinafter also simply referred to as “cleaning device”) 1 according to an embodiment of the present invention. The cleaning device 1 is a device for cleaning the louver 101 of the cooling tower 100 with high-pressure water (high-pressure fluid), and mainly includes a cleaning pipe 2, a cleaning nozzle 3, an operation rod (injection angle changing means) 4, The cleaning carriage 5 and the guide rail 6 are provided. Here, in this embodiment, the cooling tower 100 is installed on the roof of a building 22.5 m above the ground, and the top plate of the cooling tower 100 is located at a height of 4.8 m from the roof of the building. Therefore, the inspection walkway cannot be extended, and the distance between the outer periphery of the cooling tower 100 and the handrail is about 550 mm. And as shown in FIG. 3, the washing | cleaning apparatus 1 is installed in the both sides 102 extended in the longitudinal direction of such a cooling tower 100. As shown in FIG.

  The cleaning pipe 2 is a circular pipe that extends in the vertical direction and is disposed to face the louver 101. Further, as shown in FIG. 4, a connection plug 21 is provided at the lower end, and a water supply hose is connected to the connection plug 21 so that high-pressure water for cleaning is supplied into the pipe. That is, as shown in FIG. 3, a cleaning curan 103 is provided at the center of both ends of the cooling tower 100 in the longitudinal direction, and a high pressure pump (high pressure washer, not shown) is connected to the curan 103 to further increase the pressure. Connection ports (intake outlets) are provided on the downstream side and discharge side of the pump. Then, one end of the water supply hose is connected to this connection port, and the other end of the water supply hose is connected to the connection plug 21.

  As a result, tap water from the water supply main pipe that is laterally drawn near the roof G of the building is supplied to the high-pressure pump through the currant 103, and is boosted by the high-pressure pump, and then inside the cleaning pipe 2 via the water supply hose. To be supplied. Here, the water supply hose is a pressure-resistant hose made of synthetic rubber, and its length is set so that it can move to both ends of the water supply main. In addition, an original valve is provided at the connection port, and when the original valve is opened, the high-pressure pump is activated.

  The cleaning nozzle 3 is a nozzle that injects high-pressure water supplied into the cleaning tube 2 toward the louver 101, and is disposed in the cleaning tube 2. That is, as shown in FIGS. 5 to 7, the socket 22 is attached to the cleaning pipe 2, and the plug 32 detachably attached to the socket 22 is attached to the end of the first pipe part 31 a of the connection pipe 31. . The connecting pipe 31 is a circular pipe bent in a substantially L shape, and the cleaning nozzle 3 is attached to the end of the second pipe portion 31 b so as to be rotatable with respect to the socket 22. Thereby, the high-pressure water in the cleaning pipe 2 is jetted from the cleaning nozzle 3 through the socket 22, the plug 32 and the connection pipe 31.

  A plurality of such cleaning nozzles 3 are arranged along the vertical direction of the cleaning pipe 2. That is, in consideration of the spraying area of the cleaning nozzle 3 and the later-described spray angle range, the interval and number of the cleaning nozzles 3 are set so that the entire louver 101 can be cleaned evenly without omission. Yes. The distance between the cleaning nozzle 3 and the louver 101 is set so that silica or the like adhering to the louver 101 can be reliably removed and cleaned, and the cleaning nozzle 3 can perform cleaning as widely as possible. Similarly, the injection pressure from the cleaning nozzle 3 depends on the capacity of the high-pressure pump, but is set to a size that can reliably remove and clean silica adhering to the louver 101.

  The operation bar 4 is used to change and adjust the spray angle of each cleaning nozzle 3 remotely, here, manually by the hand of the worker M walking on the floor G, in the vertical direction parallel to the cleaning pipe 2. It extends and is arranged. That is, the operation rod 4 is rod-shaped, and an operation U-shaped bolt 41 is attached to each connection tube 31, and the second tube portion 31 b of the connection tube 31 is cleaned in the operation U-shaped bolt 41. The nozzle 3 is inserted so as to face obliquely downward. Then, as shown in FIG. 7, by moving the operating rod 4 in the vertical direction, each connection pipe 31 is rotated around the socket 22, and the spray angle of each cleaning nozzle 3 is changed. In this way, by operating one operating rod 4, the spray angles of all the cleaning nozzles 3 are changed in the same direction. Here, the length of the operation rod 4 is set so that the worker M standing on the floor G can easily grasp and does not interfere with work or traffic.

  The washing carriage 5 is a carriage that is equipped with the washing tube 2 and is movable, and includes a carriage body 51 and two wheels 52 as shown in FIG. The main body 51 has a substantially U-shaped cross section, the side plate portion 51a faces vertically, and two fixing U-shaped bolts 53 are attached to the side plate portion 51a. These fixing U-shaped bolts 53 are arranged in the vertical direction so that their centers coincide with each other, and the cleaning pipe 2 is the cleaning carriage in a state where the cleaning pipe 2 is inserted into these fixing U-shaped bolts 53. 5 is fixed. Here, the washing cart 5 is set so that the side plate portion 51a is parallel to one side surface (the surface having the louver 101) of the cooling tower 100.

  Further, the wheels 52 are disposed on the lower surface portion 51b of the carriage main body 51, and the rotation direction thereof is arranged in the same direction as the plate surface direction of the side plate portion 51a, that is, along the louver 101 as described later. It is installed. By moving such a washing carriage 5, the washing tube 2, each washing nozzle 3, and the operation rod 4 are moved.

  The guide rail 6 is a rail that guides the cleaning carriage 5 in the horizontal direction along the louver 101, and is arranged at the lower end portion and the center portion of the louver 101 so as to extend in the horizontal direction as shown in FIG. Has been. As shown in FIG. 8, the guide rail 6 has a substantially U-shaped cross section, and engaging portions 61 extending in the vertical direction are formed at both ends of the U-shaped opening.

  On the other hand, a guide unit 7 is attached to a portion of the cleaning tube 2 facing each guide rail 6. In the guide unit 7, rollers 72 are rotatably disposed at both ends of an opening of a substantially U-shaped unit frame 71, and an engagement groove 72a is formed in the roller 72. The guide unit 7 is guided along the guide rail 6 by engaging the engaging portion 61 of the guide rail 6 with the engaging groove 72a.

  Further, a guide U-shaped bolt 73 is attached to the mounting surface portion 71 a facing the roller 72 of the unit frame 71, and the cleaning tube 2 is inserted into the guide U-shaped bolt 73. It is supported by the unit frame 71. Here, the distance from the roller 72 to the guide U-shaped bolt 73 is set so that the distance between the cleaning nozzle 3 and the louver 101 is as described above. When the washing carriage 5 is moved in the rotation direction of the wheel 52, the guide unit 7, the washing tube 2, the washing carriage 5 and the like move along the guide rail 6. Such guide rail 6 and guide unit 7 constitute guide means.

  Next, the operation and the like of the cleaning apparatus 1 having such a configuration will be described.

  First, in a state where the water supply hose is connected to the connection plug 21 of the cleaning pipe 2, one end of the water supply hose is connected to the connection port of the water supply main pipe, and the original valve provided at the connection port is opened. As a result, the original valve is opened and the high-pressure pump is activated, high-pressure water is jetted from each cleaning nozzle 3 toward the louver 101, and mud, silica, etc. adhering to the louver 101 are removed by the high-pressure water.

  Next, when the worker M standing on the floor G moves the operation rod 4 in the vertical direction, the spray angle of each cleaning nozzle 3 is changed to a desired angle, and a desired portion of the louver 101 is cleaned. For example, the back surface (floor side) of the louver 101 positioned higher than the cleaning nozzle 3 is mainly cleaned by setting the spraying angle of the cleaning nozzle 3 upward, and the cleaning nozzle 3 is set lower than the cleaning nozzle 3 by setting the spraying angle downward. The surface (the sky side) of the lower louver 101 is mainly cleaned.

  When the worker M pushes the cleaning pipe 2 in the horizontal direction after the vertical cleaning in a part of the louver 101 (range of the reach distance in the horizontal direction of the spray water) is finished in this way, as described above, The guide unit 7, the cleaning pipe 2, the cleaning carriage 5, and the like move horizontally along the guide rail 6, that is, along the arrangement surface of the louver 101. When the movement is stopped at a desired position, cleaning similar to the above is performed at that position. Such cleaning is performed on the entire surface of the louver 101 or a desired surface.

  Here, the spray angle of the washing nozzle 3 may be continuously changed and moved up and down, or may be fixed at a predetermined angle. When the angle is fixed, the fixed angle and its stationary / injection time are: For example, the setting is performed as follows. That is, based on the opening degree of the louver 101 and the position where the cleaning nozzle 3 is disposed, it is set by performing an experiment in advance or by performing a trial run at a low position. Alternatively, the cleaning nozzle 3 may be disposed at a low height that can be visually checked by the worker M, and the cleaning state at the high place may be grasped by visually confirming the cleaning state by the cleaning nozzle 3.

  As described above, according to the cooling tower louver cleaning device 1, the louver 101 is cleaned by the high-pressure water sprayed from each cleaning nozzle 3, so it is necessary for the worker M to climb the ladder and perform the cleaning operation. There is no. In addition, the front and back surfaces of the louver 101 can be properly cleaned by changing the spray angle of the cleaning nozzle 3, and the entire surface of the louver 101 can be properly cleaned by moving the cleaning carriage 5 to change the cleaning position. Is possible. That is, the louver 101 is washed without leakage in the longitudinal direction of the louver 101 by changing the spray angle of the washing nozzle 3, and the louver 101 is washed without leakage in the lateral direction of the louver 101 by moving the washing carriage 5. Can do.

  In addition, the worker M standing on the floor G can move the operation bar 4 in the vertical direction and change the spray angle of the cleaning nozzle 3 remotely. Furthermore, since the washing carriage 5 is guided by the guide rail 6 and moves along the louver 101, it can be easily moved, and the positional relationship between each washing nozzle 3 and the louver 101 is always kept appropriate. Therefore, it is possible to properly clean the louver 101 as a whole.

  Thus, it becomes possible to clean the entire louver 101 properly and easily. Moreover, since it is only necessary to have a space in which the washing carriage 5 on which the washing tube 2 and the like are mounted can be moved, even in a work environment where it is difficult to secure a corridor space, The louver 101 can be cleaned. Further, since the water supply hose is separate from the apparatus 1 and is attached only at the time of use, when the cleaning by the apparatus 1 is not performed, the unit of the cleaning carriage 5, the cleaning pipe 2 and the operation rod 4 is attached to the end of the guide rail 6. The space around the cooling tower 100 can be effectively utilized by moving it away or removing it from the guide rail 6.

  Although the embodiment of the present invention has been described above, the specific configuration is not limited to the above embodiment, and even if there is a design change or the like without departing from the gist of the present invention, Included in the invention. For example, in the above embodiment, the tap water is used as the cleaning water, but a part of the cooling water piping of the cooling tower 100 may be branched to use the cooling water as the cleaning water. Further, although the spray angles of all the cleaning nozzles 3 are changed in the same direction by operating one operating rod 4, the spray angles of the respective cleaning nozzles 3 may be individually changed. Furthermore, the spraying angle of the cleaning nozzle 3 may be electrically changed without using the operation rod 4, and the spraying angle may be changed periodically by a timer. Moreover, although the washing trolley 5 etc. are moved manually, you may make it move electrically. Further, the system (water supply hose, cleaning pipe 2 and the like) may be preliminarily pressurized by a high pressure pump, and water supply may be started by opening a valve separately provided near the operator of the cleaning pipe 2.

  On the other hand, high-pressure water is used as the high-pressure fluid, but compressed air may be used. In this case, instead of the water supply main pipe, a high-pressure air pipe is installed as a horizontal pulling pipe and communicated with a compressor, or an air hose is connected to a portable air pump to blow high-pressure air from the air nozzle toward the louver 101. In this case, high pressure air is blown in a state where silica or the like is completely dry, and cleaning is performed when the removed silica or the like is scattered outside the cooling tower 100.

DESCRIPTION OF SYMBOLS 1 Cleaning tower louver cleaning device 2 Cleaning pipe 22 Socket 3 Cleaning nozzle 31 Connection pipe 32 Plug 4 Operation rod (Joint angle changing means)
5 Washing cart 6 Guide rail (guide means)
7 Guide unit (guide means)
100 cooling tower 101 louver M worker

Claims (3)

A tubular cleaning tube that extends in the vertical direction, is disposed opposite the louver of the cooling tower, and is supplied with a high-pressure fluid for cleaning in the tube;
A plurality of cleaning pipes arranged in the vertical direction in the cleaning pipe, and a cleaning nozzle for injecting high-pressure fluid supplied into the pipe of the cleaning pipe toward the louver;
A washing carriage that is equipped with the washing tube and is movable,
An apparatus for cleaning a cooling tower louver. A spray angle changing means capable of adjusting a spray angle of the cleaning nozzle at a position remote from the cleaning nozzle;
The cleaning device for a cooling tower louver according to claim 1. Comprising guide means for guiding the washing carriage along the louver,
The apparatus for cleaning a cooling tower louver according to any one of claims 1 and 2.

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