An on-line cleaning device and cleaning method for cooling tower fill

Abstract

This invention discloses an online cleaning device for cooling tower packing, comprising a tower body with a water collection pool at the bottom. A packing layer is installed inside the tower body above the water collection pool. A cooling tower core is fixedly installed in the middle of the tower body. A U-shaped track is fixedly installed on the inner wall of the tower body above the packing layer. A tower edge spraying mechanism is slidably mounted on the U-shaped track, and a tower core spraying mechanism is slidably mounted on the outer edge of the cooling tower core. The tower core spraying mechanism and the tower edge spraying mechanism are connected by a water pipe. The tower core spraying mechanism is also connected to a high-pressure water supply hose, the other end of which is connected to a water supply pipe. The tower edge spraying mechanism and the tower core spraying mechanism can rotate around the cooling tower core, thereby enabling water spraying and cleaning of the packing layer. This device features a high degree of automation, reduces labor costs, and improves cleaning efficiency. The invention has low investment, labor, and maintenance costs, and has significant potential for widespread application.

Description

Technical Field

[0001] This invention relates to the field of thermal power generation technology, and more specifically, to an online cleaning device and method for cooling tower packing. Background Technology

[0002] In recent years, with the rapid increase in the proportion of new energy in the national energy mix, the development of traditional thermal power enterprises has been severely constrained, and thermal power plants are facing unprecedented difficulties. How to tap the potential for energy conservation and emission reduction and lower operating costs is a pressing issue that thermal power enterprises need to consider.

[0003] The cold source loss of the steam turbine cold end system is the largest loss in thermal power plants. The hyperbolic cooling tower is one of the important cold end equipment of the steam turbine generator set, and its cooling performance has a very important impact on the economic and safe operation of the power plant.

[0004] Cooling water is continuously circulated in the cooling tower system. Due to the combined effects of factors such as increased water temperature, changes in water flow velocity, water evaporation, concentration of various inorganic ions and organic substances, and the structure and materials of the equipment, more severe sediment buildup and microbial proliferation occur compared to a direct-flow system. This results in sludge and fouling that clogs the packing material, seriously affecting cooling efficiency, disrupting the safe operation of the turbine condenser, and even causing economic losses. Therefore, to ensure the safe, normal, and low-cost operation of the system, regular cleaning of the cooling tower packing is crucial.

[0005] Currently, most chemical cleaning projects on the market use acid washing combined with corrosion inhibitors. This technology, when applied to hyperbolic cooling towers, presents the following problems: incomplete cleaning, serious corrosion risks, high costs, and environmental pollution. Offline physical cleaning also faces issues such as high labor costs and untimely cleaning of the packing material. Summary of the Invention

[0006] The purpose of this invention is to provide an online cleaning device and method for cooling tower packing that can effectively avoid the disadvantages of chemical cleaning and offline physical cleaning.

[0007] To achieve the above objectives, the technical solution adopted by the present invention is as follows: an online cleaning device for cooling tower packing includes a tower body, a water collection pool at the bottom of the tower body, a packing layer installed inside the tower body above the water collection pool, a cooling tower core fixedly installed in the middle of the tower body, a U-shaped track fixedly installed on the inner wall of the tower body above the packing layer, a tower edge spraying mechanism slidably installed on the U-shaped track, a tower core spraying mechanism slidably installed on the outer edge of the cooling tower core, the tower core spraying mechanism and the tower edge spraying mechanism are connected by a water pipe, the tower core spraying mechanism is also connected to a high-pressure water supply hose, the other end of the high-pressure water supply hose is connected to a water supply fitting, the water supply fitting is used to draw water from the water collection pool.

[0008] Preferably, the tower edge spraying mechanism includes a first spray base, with first rollers installed at the upper and lower parts of one end of the first spray base. The first spray base is slidably installed in the opening of the U-shaped track through the first rollers. Multiple first nozzles are installed at the lower part of the first spray base. A toothed plate is fixedly installed at the bottom of the opening of the U-shaped track. A motor is fixedly installed at the lower part of the first spray base. A gear is fixedly installed on the output shaft of the motor, and the gear meshes with the toothed plate.

[0009] Preferably, the core water spraying mechanism includes a second water spray base, which is connected to the first water spray base via a water pipe. Multiple second nozzles are installed at the lower part of the second water spray base. The upper end of the high-pressure water supply hose is connected to the second water spray base. A ring groove is formed on the outer edge of the cooling tower core. Multiple second rollers are evenly installed at the upper and lower ends inside the ring groove. One end of the second water spray base is inserted into the ring groove, and the second rollers at the upper and lower ends inside the ring groove clamp the second water spray base.

[0010] Preferably, both the first and second spray nozzles have a water inlet cylinder fixedly installed inside, and the two water inlet cylinders are connected by a water pipe. Multiple water receiving hoses are evenly fixedly installed at the bottom of the water inlet cylinders, and the first and second nozzles are connected to the water receiving hoses at the corresponding positions.

[0011] Preferably, the bottom of the first and second spray seats are provided with notches at the positions of the first and second nozzles, and the first and second nozzles are movably hinged in the notches. A pull rod is fixedly installed between the upper parts of adjacent first and second nozzles. An electric push rod is fixedly installed at one outer end of the first and second spray seats, and the piston shaft of the electric push rod is fixedly connected to the first and second nozzles at the corresponding positions.

[0012] Preferably, the water supply pipe includes a water intake pipe, a flushing pump, and a pressure regulating valve. The two ends of the water intake pipe are respectively connected to a water collection tank and a high-pressure water supply hose. The flushing pump and the pressure regulating valve are both installed on the water intake pipe.

[0013] Preferably, a plurality of cylindrical rollers are movably installed on the inner sidewall of the U-shaped track.

[0014] Preferably, the upper and lower parts of the second water spray seat are provided with grooves at the position of the second roller, and the grooves are engaged with the second roller.

[0015] The cleaning method of the online cleaning device for cooling tower packing is as follows: Step 1: The flushing pump draws flushing water from the water collection tank.

[0016] Step 2: The flushing water is pressurized by the flushing pump and pressure regulating valve and then flows into the high-pressure water supply hose.

[0017] Step 3: The high-pressure water supply hose pumps the rinsing water into the second and first spray nozzles.

[0018] Step 4: Adjust the opening of the pressure regulating valve to maintain a certain pressure for the flushing water.

[0019] Step 5: Rinse water is sprayed out through the first and second nozzles.

[0020] Step Six: The motor drives the first and second spray seats to rotate around the core of the cooling tower, and the angle of the first and second spray nozzles can be controlled by the electric push rod, thereby performing high-pressure online flushing of the packing layer.

[0021] Compared with the prior art, the advantages of the present invention are as follows: The water spray mechanism along the tower edge and the water spray mechanism at the tower center can rotate around the core of the cooling tower, thereby enabling water spray cleaning of the packing layer. This highly automated process reduces labor costs and improves cleaning efficiency. The invention has low investment, labor, and maintenance costs, making it highly valuable for widespread application. Attached Figure Description

[0022] To more clearly illustrate the technical solutions in the embodiments of the present invention or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0023] Figure 1 This is a structural diagram of an online cleaning device and cleaning method for cooling tower packing according to the present invention; Figure 2 This is a structural diagram of the water spray mechanism along the tower edge of the present invention; Figure 3 This is a structural diagram of the water spray mechanism at the core of the tower in this invention; Figure 4 This is a cross-sectional view of the second water spray base of the present invention.

[0024] In the diagram: 1. Tower body, 2. Water collection pool, 3. Packing layer, 4. Cooling tower core, 41. Circular groove, 42. Second water spray base, 43. Second nozzle, 44. Groove, 45. Second roller, 46. Limiting groove, 47. Notch, 5. Tower edge water spraying mechanism, 51. U-shaped track, 52. Cylindrical roller, 53. First water spray base, 54. Water pipe, 55. First roller, 56. Toothed plate, 57. Motor, 58. Gear, 59. First nozzle, 6. High-pressure water supply hose, 7. Water supply fittings, 71. Water intake pipe, 72. Flushing pump, 73. Pressure regulating valve, 8. Electric push rod, 81. Pull rod, 82. Water receiving hose, 9. Water inlet cylinder. Detailed Implementation

[0025] The preferred embodiments of the present invention will now be described in detail with reference to the accompanying drawings, so that the advantages and features of the present invention can be more easily understood by those skilled in the art, thereby providing a clearer and more explicit definition of the scope of protection of the present invention.

[0026] See Figure 1 , Figure 2 and Figure 3 As shown, the present invention provides an online cleaning device for cooling tower packing, including a tower body 1, a water collection pool 2 at the bottom of the tower body 1, a packing layer 3 installed inside the tower body 1 above the water collection pool 2, a cooling tower core 4 fixedly installed in the middle of the tower body 1, a U-shaped track 51 fixedly installed on the inner wall of the tower body 1 above the packing layer 3, a tower edge spraying mechanism 5 slidably installed on the U-shaped track 51, a tower core spraying mechanism slidably installed on the outer edge of the cooling tower core 4, the tower core spraying mechanism and the tower edge spraying mechanism 5 are connected by a water pipe 54, the tower core spraying mechanism is also connected to a high-pressure water supply hose 6, the other end of the high-pressure water supply hose 6 is connected to a water supply fitting 7, the water supply fitting 7 is used to draw water from the water collection pool 2, thereby sending water into the tower core spraying mechanism and the tower edge spraying mechanism 5, the tower core spraying mechanism and the tower edge spraying mechanism 5 can spray water to the middle and outer edges of the packing layer 3, thereby cleaning the packing layer 3.

[0027] In this embodiment, the tower edge spraying mechanism 5 includes a first spray base 53. First rollers 55 are installed at the upper and lower ends of one end of the first spray base 53. The first spray base 53 is slidably installed in the opening of a U-shaped track 51 via the first rollers 55. Multiple first nozzles 59 are installed at the lower part of the first spray base 53. A toothed plate 56 is fixedly installed at the bottom of the opening of the U-shaped track 51. A motor 57 is fixedly installed at the lower part of the first spray base 53. A gear 58 is fixedly installed on the output shaft of the motor 57. The gear 58 meshes with the toothed plate 56. The motor 57 can be controlled by a remote switch. When the motor 57 starts, it drives the first spray base 53 to move on the toothed plate 56 through the action of the gear 58, thereby rotating along the tower edge direction.

[0028] In this embodiment, the tower core water spraying mechanism includes a second water spray seat 42, which is connected to the first water spray seat 53 via a water pipe 54. A plurality of second nozzles 43 are installed at the lower part of the second water spray seat 42. The upper end of the high-pressure water supply hose 6 is connected to the second water spray seat 42. A ring groove 41 is formed on the outer edge of the cooling tower core 4. A plurality of second rollers 45 are evenly and movably installed at the upper and lower ends inside the ring groove 41. One end of the second water spray seat 42 is inserted into the ring groove 41. The second rollers 45 at the upper and lower ends inside the ring groove 41 clamp the second water spray seat 42, so that the second water spray seat 42 can slide smoothly in the ring groove 41.

[0029] In this embodiment, a water inlet cylinder 9 is fixedly installed inside the first water spray base 53 and the second water spray base 42. The two water inlet cylinders 9 are connected by a water pipe 54. A plurality of water receiving hoses 82 are evenly fixedly installed at the lower part of the water inlet cylinder 9. The first nozzle 59 and the second nozzle 43 are connected to the water receiving hoses 82 at the corresponding positions.

[0030] See Figure 4 As shown in this embodiment, the bottom of the first spray base 53 and the second spray base 42 are provided with notches 47 at the positions of the first nozzle 59 and the second nozzle 43. The first nozzle 59 and the second nozzle 43 are both movably hinged in the notches 47. A pull rod 81 is fixedly installed between the upper parts of adjacent first nozzles 59 and second nozzles 43. An electric push rod 8 is fixedly installed at one outer end of the first spray base 53 and the second spray base 42. The piston shaft of the electric push rod 8 is fixedly connected to the corresponding nozzle 59 and the second nozzle 43. Since the first nozzle 59 and the second nozzle 43 are connected to the corresponding water receiving hose 82, the first nozzle 59 and the second nozzle 43 can tilt and deflect under the push of the electric push rod 8, so as to spray water on different positions of the filler layer 3 to ensure the cleaning effect. The electric push rod 8 can be controlled by a remote switch.

[0031] In this embodiment, the water supply pipe 7 includes a water intake pipe 71, a flushing pump 72, and a pressure regulating valve 73. The two ends of the water intake pipe 71 are respectively connected to the water collection tank 2 and the high-pressure water supply hose 6. The flushing pump 72 and the pressure regulating valve 73 are both installed on the water intake pipe 71.

[0032] In this embodiment, a plurality of cylindrical rollers 52 are movably installed on the inner side wall of the U-shaped track 51. The cylindrical rollers 52 roll in contact with the first water spray seat 53, thereby further ensuring the smoothness of the movement of the first water spray seat 53.

[0033] In this embodiment, the upper and lower parts of the second water spray seat 42 are provided with grooves 44 at the position of the second roller 45. The grooves 44 are engaged with the second roller 45 to prevent the second water spray seat 42 from detaching from the annular groove 41.

[0034] The cleaning method of the online cleaning device for cooling tower packing is characterized by: Step 1: The flushing pump 72 takes flushing water from the water collection tank 2.

[0035] Step 2: The flushing water is pressurized by the flushing pump 72 and the pressure regulating valve 73 and then flows into the high-pressure water supply hose 6.

[0036] Step 3: The high-pressure water supply hose 6 pumps the rinsing water into the second spray seat 42 and the first spray seat 53.

[0037] Step 4: Adjust the opening of the pressure regulating valve 73 to maintain a certain pressure for the flushing water.

[0038] Step 5: Rinse water is sprayed out through the first nozzle 59 and the second nozzle 43.

[0039] Step 6: Motor 57 drives the first water spray seat 53 and the second water spray seat 42 to rotate around the cooling tower core 4, and the first nozzle 59 and the second nozzle 43 can control the angle through the electric push rod 8, thereby performing high-pressure online flushing of the packing layer 3.

[0040] Although embodiments of the present invention have been described in conjunction with the accompanying drawings, the patent owner may make various modifications or alterations within the scope of the appended claims, as long as they do not exceed the protection scope described in the claims of the present invention, they shall be within the protection scope of the present invention.

Claims

1. An online cleaning device for cooling tower packing, comprising a tower body, a water collection tank at the bottom of the tower body, and the interior of the tower body within the water collection tank. A filler layer is installed at the upper position, characterized in that: A cooling tower core is fixedly installed in the middle of the tower body. A U-shaped track is fixedly installed on the inner wall of the tower above the packing layer. A tower edge spray mechanism is slidably installed on the U-shaped track. A tower core spray mechanism is slidably installed on the outer edge of the cooling tower core. The tower core spray mechanism and the tower edge spray mechanism are connected by a water pipe. The tower core spray mechanism is also connected to a high-pressure water supply hose. The other end of the high-pressure water supply hose is connected to a water supply fitting for drawing water from the collection tank. The tower edge spraying mechanism includes a first spray base, with first rollers installed at both the upper and lower parts of one end of the first spray base. The first spray base is slidably installed in the opening of a U-shaped track via the first rollers. Multiple first nozzles are installed at the lower part of the first spray base. A toothed plate is fixedly installed at the bottom of the opening of the U-shaped track. A motor is fixedly installed at the lower part of the first spray base, and a gear is fixedly installed on the output shaft of the motor, meshing with the toothed plate. The tower core water spraying mechanism includes a second water spray base, which is connected to the first water spray base via a water pipe. Multiple second nozzles are installed at the lower part of the second water spray base. The upper end of the high-pressure water supply hose is connected to the second water spray base. A ring groove is formed on the outer edge of the cooling tower core. Multiple second rollers are evenly installed at the upper and lower ends inside the ring groove. One end of the second water spray base is inserted into the ring groove, and the second rollers at the upper and lower ends inside the ring groove clamp the second water spray base.

2. The online cleaning device for cooling tower packing according to claim 1, characterized in that: Both the first and second water spray bases have water inlet cylinders fixedly installed inside. The two water inlet cylinders are connected by a water pipe. Multiple water receiving hoses are evenly fixedly installed at the bottom of the water inlet cylinders. The first and second spray heads are connected to the water receiving hoses at the corresponding positions.

3. The online cleaning device for cooling tower packing according to claim 2, characterized in that: The bottom of the first and second spray seats has notches at the positions of the first and second nozzles. The first and second nozzles are movably hinged in the notches. A pull rod is fixedly installed between the upper parts of adjacent first and second nozzles. An electric push rod is fixedly installed at one outer end of the first and second spray seats. The piston shaft of the electric push rod is fixedly connected to the first and second nozzles at the corresponding positions.

4. The online cleaning device for cooling tower packing according to claim 1, characterized in that: The water supply pipe includes a water intake pipe, a flushing pump, and a pressure regulating valve. The two ends of the water intake pipe are respectively connected to the water collection tank and the high-pressure water supply hose. The flushing pump and the pressure regulating valve are both installed on the water intake pipe.

5. The online cleaning device for cooling tower packing according to claim 1, characterized in that: Multiple cylindrical rollers are movably installed on the inner wall of the U-shaped track.

6. The online cleaning device for cooling tower packing according to claim 1, characterized in that: The upper and lower parts of the second water spray seat are provided with grooves at the position of the second roller, and the grooves are engaged with the second roller.

7. The cleaning method of the online cleaning device for cooling tower packing according to any one of claims 1-6, characterized in that: Step 1: The flushing pump draws flushing water from the collection tank; Step 2: The flushing water is pressurized by the flushing pump and pressure regulating valve and then flows into the high-pressure water supply hose; Step 3: The high-pressure water supply hose pumps the rinsing water into the second and first spray nozzles; Step 4: Adjust the opening of the pressure regulating valve to maintain a certain pressure for the flushing water; Step 5: Rinse water is sprayed out through the first and second nozzles; Step Six: The motor drives the first and second spray seats to rotate around the core of the cooling tower, and the angle of the first and second spray nozzles can be controlled by the electric push rod, thereby performing high-pressure online flushing of the packing layer.

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