Foreign matter cleaning method for water filter of hydropower station

Abstract

According to the foreign matter cleaning method for the water filter of the hydropower station, water entering the water filter is in a rapid flowing state, if the internal space of the water filter cannot be filled with cleaning water, the part, not wetted by the cleaning water, in the water filter cannot be effectively cleaned, and the foreign matter cleaning effect is convenient, and obvious defects exist. The method comprises the following steps that after the water filter is filled with water, an external rotating rod is driven by a motor to rotate, and due to the fact that a transmission belt is arranged between transmission wheels installed on the external rotating rod and a transmission wheel installed on a built-in rotating rod in a sleeving mode, the motor can drive the built-in rotating rod to rotate; when the built-in rotating rod drives the impeller to rotate, water in the water filter can form vortex, and at the moment, the rolling water can wash the interior of the water filter. The device is used for cleaning foreign matters in the hydropower station water filter.

Description

Technical Field

[0001] The invention relates to the field of water filter cleaning devices, and in particular to a method for cleaning foreign matter in a water filter of a hydropower station. Background Art

[0002] The water filter of a hydropower station is mainly used for the automation of the technical water supply of a hydropower station. It is a filtering device for the centralized water supply system of a power station and is widely used in: cooling water system of a unit, cooling water system of a main transformer of a hydropower station and fire water supply system. Due to the long-term use of the water filter, a large amount of impurities will accumulate inside it. In order to ensure the normal filtering performance of the water filter, it is necessary to regularly clean the foreign matter inside it.

[0003] There is a Chinese patent with patent number CN212067976U, which discloses a method for cleaning foreign matter in a water filter of a hydropower station, including a finger cylinder, a fixing frame, a bottom plate, a hydraulic push rod, a coupling, a fixing rod, a telescopic rod, a water pipe, a shaft sleeve, a cross bar, a motor, a water pump, a fixing plate, a top plate, a slot, a nozzle, a cleaning block, a tray, a filter, a funnel and a recycling box. In this scheme, water is supplied to the inside of the water filter by a water pump for flushing, and the cleaning block is driven by the motor to wipe the inside of the water filter. Although foreign matter can be cleaned, the water entering the water filter is in a fast-flowing state. If the cleaning water cannot fill the internal space of the water filter, the part of the water filter that is not soaked by the cleaning water cannot be effectively cleaned, and there is an obvious defect in the foreign matter cleaning effect. In view of this, we propose a method for cleaning foreign matter in a water filter of a hydropower station that can efficiently clean the inside of the water filter and conveniently connect the device with the water filter as one. Summary of the invention

[0004] The purpose of the present invention is to address the problems existing in the background technology and to propose a method for cleaning foreign matter in a water filter of a hydropower station, which can efficiently clean the inside of the water filter and conveniently connect the device with the water filter as one.

[0005] The above objectives are achieved through the following solutions: A method for cleaning foreign matter in a water filter of a hydropower station, the method comprising the following steps: (1) First, move the device to the side of the water filter, insert the butt joint into the water inlet port of the water filter, and then use a rubber plug to plug the water outlet port of the water filter; (2) Then connect the external water pump to the water inlet pipe, and use the water pump to inject water into the flushing pipe, and then pour the water into the water filter; (3) When the water filter is filled with water, the motor drives the external rotating rod to rotate. Since a transmission belt is provided between the external rotating rod and the transmission wheel installed on the internal rotating rod, the motor can drive the internal rotating rod to rotate; (4) When the built-in rotating rod drives the impeller to rotate, the water inside the water filter can form a vortex, and the tumbling water can flush the inside of the water filter; (5) After the cleaning operation is completed, separate the device from the water filter, open the rubber plug at the water outlet of the water filter, and then place the standing water filter flat on the ground to drain the suspended liquid inside.

[0006] The method for cleaning foreign matter from a water filter in a hydropower station is described as follows: a water inlet pipe connected to the interior of the flushing pipe is fixedly installed on the outer wall of the flushing pipe, a built-in rotating rod is rotatably installed inside the flushing pipe, a transmission wheel is fixedly installed on one end of the built-in rotating rod and on the external rotating rod, a transmission belt is commonly sleeved between the two transmission wheels, a butt joint is threadedly installed on one end of the flushing pipe, and an impeller is fixedly installed on one end of the built-in rotating rod and outside the butt joint.

[0007] In the method for cleaning foreign matter from a water filter in a hydropower station, two built-in positioning plates are fixedly installed inside the flushing pipe, and the built-in rotating rod passes through the two built-in positioning plates and is rotatably connected thereto.

[0008] In the method for cleaning foreign matter from a water filter in a hydropower station, two annular limiting plates are welded on the built-in rotating rod and close to the built-in positioning plate, and the two annular limiting plates are both arranged between the two built-in positioning plates.

[0009] In the method for cleaning foreign matter from a water filter in a hydropower station, a rubber sealing ring is sleeved on the outer wall of the butt joint, and the rubber sealing ring is clamped in the gap between the outer wall of the butt joint and the inner wall of the water inlet port of the water filter.

[0010] The method for cleaning foreign matter from a water filter in a hydropower station comprises: an anti-blocking plate fixedly installed inside the butt joint; one end of the built-in rotating rod passes through a circular hole drilled on the anti-blocking plate and is rotatably connected thereto; and a plurality of filter screens are fixedly installed on the anti-blocking plate.

[0011] In the method for cleaning foreign matter from a water filter in a hydropower station, a first drain pipe is fixedly installed on the outer wall of the flushing pipe and at one end close to the butt joint, and a second drain pipe is fixedly installed on the outer wall of the flushing pipe and at one end away from the first drain pipe.

[0012] In the method for cleaning foreign matter from a water filter in a hydropower station, an external positioning plate is fixedly mounted on the top of the base, and one end of the external rotating rod away from the motor is rotatably connected to the external positioning plate. Beneficial Effects

[0013] 1. Inject cleaning water into the water filter through the flushing pipe. When the water is filled inside the water filter, the motor drives the impeller to rotate, so that the water inside the water filter can form a vortex. The swirling cleaning water can achieve the purpose of flushing, and the inverted hook structure on the impeller can cover some foreign matter swirling in the cleaning water. After the cleaning water is stirred to form a suspension, it can be discharged directly, ensuring that the internal area of ​​the water filter can be fully cleaned, effectively improving the foreign matter cleaning effect.

[0014] 2. The docking connector allows the device to be docked with the water inlet of the water filter as one. During docking installation, you only need to move the base to one side of the water filter. The water filter can be directly connected to the docking connector in a standing state without the need for clamping and fixing. The operation is simpler, which effectively improves the convenience of docking installation between the device and the water filter. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 The overall structural schematic diagram of the present invention is given; Figure 2 This is a schematic diagram of the connection between the built-in rotating rod and the flushing pipeline in the present invention; Figure 3 This is a schematic diagram of the flushing pipeline structure in the present invention; Figure 4 It is a schematic diagram of the structure of the built-in rotating rod in the present invention; Figure 5 It is a schematic diagram of the anti-blocking plate structure in the present invention; Figure numerals: 1. base; 11. external positioning plate; 2. external rotating rod; 3. transmission belt; 4. internal rotating rod; 41. transmission wheel; 42. annular limit plate; 43. impeller; 5. flushing pipe; 51. water inlet pipe; 52. internal positioning plate; 53. butt joint; 531. rubber sealing ring; 54. anti-blocking plate; 541. filter net; 55. first drain pipe; 56. second drain pipe; 6. motor. DETAILED DESCRIPTION

[0016] The technical solution of the present invention is further described below in conjunction with the accompanying drawings and specific embodiments.

[0017] A method for cleaning foreign matter in a water filter of a hydropower station, the method comprising the following steps: (1) First, move the device to the side of the water filter, insert the butt joint into the water inlet port of the water filter, and then use a rubber plug to plug the water outlet port of the water filter; (2) Then connect the external water pump to the water inlet pipe, and use the water pump to inject water into the flushing pipe, and then pour the water into the water filter; (3) When the water filter is filled with water, the motor drives the external rotating rod to rotate. Since a transmission belt is provided between the external rotating rod and the transmission wheel installed on the internal rotating rod, the motor can drive the internal rotating rod to rotate; (4) When the built-in rotating rod drives the impeller to rotate, the water inside the water filter can form a vortex, and the tumbling water can flush the inside of the water filter; (5) After the cleaning operation is completed, separate the device from the water filter, open the rubber plug at the water outlet of the water filter, and then place the standing water filter flat on the ground to drain the suspended liquid inside.

[0018] like Figure 1-3 As shown, a method for cleaning foreign matter in a water filter of a hydropower station proposed by the present invention comprises a base 1, a motor 6 is fixedly mounted on the upper surface of the base 1, an external rotating rod 2 is fixedly mounted on the output end of the motor 6, a transmission wheel 41 is sleeved and welded on the external rotating rod 2, a flushing pipe 5 is welded on the frame at the top of the base 1, a water inlet pipe 51 connected to the inside of the flushing pipe 5 is cast on the outer wall of the flushing pipe 5, and the water inlet pipe 51 is connected to an externally arranged water pump, so that flushing water can be poured into the flushing pipe 5 through the water pump. A butt joint 53 is threadedly mounted on one end of the flushing pipe 5, and an end of the butt joint 53 away from the flushing pipe 5 is inserted into the water inlet port of the water filter and tightly clamped therewith, so as to ensure that the water in the flushing pipe 5 can be poured into the water filter. An internal rotating rod 4 is rotatably mounted inside the flushing pipe 5, and a transmission wheel 41 is welded on one end of the internal rotating rod 4 and located outside the flushing pipe 5, and a transmission belt 3 is sleeved on the transmission wheel 41 and the transmission wheel 41 installed on the external rotating rod 2, so as to ensure that the motor 6 can drive the internal rotating rod 4 to rotate. An impeller 43 is fixedly installed at one end of the built-in rotating rod 4 away from the transmission wheel 41. The impeller 43 penetrates into the water filter from one end of the docking joint 53. When the water filter is filled with water, the rotating impeller 43 can cause the water inside the water filter to generate a vortex, and then the stirred water flushes the inside of the water filter.

[0019] The working principle of a method for cleaning foreign matter from a water filter in a hydropower station is as follows: first, the device is moved to one side of the water filter, and the docking connector 53 is inserted into the water inlet port of the water filter, and then the water outlet port of the water filter is blocked with a rubber plug. Then, an externally arranged water pump is connected to the water inlet pipe 51 as a whole, and water can be injected into the flushing pipe 5 through the water pump, and then the water is poured into the water filter. During the entire installation and docking process, the water filter can remain in a standing state and be directly placed on the ground without clamping and fixing. The operation is simple, and it is convenient for the staff to dock the device with the water filter as a whole. When the water filter is filled with water, the external rotating rod 2 is driven to rotate by the motor 6. Since a transmission belt 3 is sleeved between the external rotating rod 2 and the transmission wheel 41 installed on the internal rotating rod 4, the internal rotating rod 4 can be driven by the motor 6 to rotate. When the built-in rotating rod 4 drives the impeller 43 to rotate, the water inside the water filter can form a vortex. At this time, the tumbling water can flush the inside of the water filter, and the blades of the impeller 43 are provided with a hook structure, which can cover the long impurities in the flushing water (such as moss, algae, etc. in the water). After the cleaning operation is completed, the device is separated from the water filter, and after opening the rubber plug of the water outlet port of the water filter, the standing water filter can be placed flat on the ground, and then the suspended liquid inside it can be discharged. Compared with the traditional cleaning method, filling the internal area of ​​the water filter with cleaning water can make its inner wall completely immersed in the cleaning water, avoiding the cleaning water from quickly entering and exiting and failing to completely soak the internal structure of the water filter, ensuring that the internal area of ​​the water filter can be fully cleaned, and effectively improving the foreign matter cleaning effect.

[0020] like Figure 2 As shown, the present invention proposes a method for cleaning foreign matter from a water filter in a hydropower station, comprising a flushing pipe 5, wherein two built-in positioning plates 52 are fixedly assembled inside the flushing pipe 5 by a casting process, and a built-in rotating rod 4 passes through holes drilled in the center of the two built-in positioning plates 52 and is rotatably connected thereto, and a plurality of circular openings for drainage are also drilled on the built-in positioning plate 52 near the side of the butt joint 53, so as to avoid interception of water in the flushing pipe 5 and ensure that the flushing water can be discharged into the water filter along the flushing pipe 5.

[0021] The working principle of a method for cleaning foreign matter from a water filter in a hydropower station is as follows: first, a built-in rotating rod 4 is passed through two built-in positioning plates 52, and the built-in rotating rod 4 can be effectively limited by the two built-in positioning plates 52 to ensure that the built-in rotating rod 4 can be stably rotated and installed inside the flushing pipe 5, effectively preventing the built-in rotating rod 4 from shaking during rotation and improving its stability during rotation.

[0022] like Figure 2 and Figure 4As shown, a method for cleaning foreign matter from a water filter in a hydropower station proposed by the present invention includes a built-in rotating rod 4, and two annular limit plates 42 are welded on the outer wall of the built-in rotating rod 4, one of the annular limit plates 42 is arranged on the right side of the built-in positioning plate 52 close to the side of the butt joint 53, and the other annular limit plate 42 is arranged on the left side of the other built-in positioning plate 52, ensuring that the two annular limit plates 42 are arranged between the two built-in positioning plates 52.

[0023] The working principle of a method for cleaning foreign matter from a water filter in a hydropower station is as follows: first, the annular limiting plate 42 is limited in the horizontal direction by the built-in positioning plate 52, so as to prevent the built-in rotating rod 4 from being displaced in the horizontal direction. On the premise of ensuring its rotation stability, the transmission wheel 41 at the end of the built-in rotating rod 4 can also be prevented from moving, so as to avoid the transmission belt 3 from being disconnected from the transmission wheel 41, thereby further improving the stability of the built-in rotating rod 4 during rotation.

[0024] like Figure 2 As shown, a method for cleaning foreign matter from a water filter in a hydropower station proposed by the present invention comprises a butt joint 53, on the outer wall of which a rubber sealing ring 531 is movably sleeved, and the left end of the rubber sealing ring 531 is embedded in the gap between the outer wall of the butt joint 53 and the inner wall of the water inlet port of the water filter.

[0025] The working principle of a method for cleaning foreign matter from a water filter in a hydropower station is as follows: first, insert the butt joint 53 into the water inlet port of the water filter, at which time the left end of the rubber sealing ring 531 is inserted into the gap between the outer wall of the butt joint 53 and the inner wall of the water inlet port of the water filter, and the right end of the rubber sealing ring 531 is tightly clamped between the right end of the water inlet port of the water filter and the raised part of the butt joint 53, achieving a double sealing effect, effectively preventing water leakage at the connection end between the water filter and the flushing pipe 5, and effectively improving its sealing effect.

[0026] like Figure 2 and Figure 5 As shown, a method for cleaning foreign matter from a water filter in a hydropower station proposed by the present invention comprises a butt joint 53, an anti-blocking plate 54 is welded on the inner wall of the butt joint 53, one end of the built-in rotating rod 4 passes through a circular hole drilled in the middle of the anti-blocking plate 54 and is rotatably connected thereto, and a plurality of filter screens 541 are fixedly mounted on the anti-blocking plate 54.

[0027] The working principle of a method for cleaning foreign matter from a water filter in a hydropower station is as follows: first, the end of the built-in rotating rod 4 can be limited by an anti-blocking plate 54 to further reduce its shaking amplitude, and a filter net 541 is installed on the anti-blocking plate 54. Water in the flushing pipe 5 can pass through the filter net 541 and enter the water filter. Under the interception of the filter net 541, moss, algae, etc. cleaned out of the water filter can be prevented from entering the flushing pipe 5, which can prevent the flushing pipe 5 from being blocked, and effectively improve its anti-blocking performance.

[0028] like Figure 2 As shown, a method for cleaning foreign matter from a water filter in a hydropower station proposed by the present invention includes a flushing pipe 5, on the outer wall of which a first drain pipe 55 and a second drain pipe 56 connected to the interior are cast, wherein the first drain pipe 55 is installed on a side close to a butt joint 53, and the second drain pipe 56 is arranged on a side away from the first drain pipe 55.

[0029] The working principle of a method for cleaning foreign matter in a water filter of a hydropower station is as follows: first, the suspended liquid that flows back into the flushing pipe 5 can be discharged through the first drain pipe 55. Timely discharge of the suspended liquid can reduce the amount of sludge adhering to the inner wall of the flushing pipe 5, making it convenient for subsequent cleaning of the flushing pipe 5. The accumulated water in the right section of the built-in positioning plate 52 arranged on the right side of the flushing pipe 5 can be discharged through the second drain pipe 56, effectively improving the convenience of discharging the accumulated water inside the flushing pipe 5.

[0030] like Figure 1 As shown, a method for cleaning foreign matter from a water filter in a hydropower station proposed by the present invention comprises a base 1, an external positioning plate 11 is fixedly installed on the upper surface of the base 1 and on the side away from the motor 6, and an end of the external rotating rod 2 away from the motor 6 is embedded in a limiting groove excavated on the left side of the external positioning plate 11 and is rotatably connected thereto.

[0031] The working principle of a method for cleaning foreign matter from a water filter in a hydropower station is as follows: first, the end of the external rotating rod 2 away from the motor 6 is inserted into a limiting groove drilled on the external positioning plate 11, and then the external rotating rod 2 can be limited to prevent the external rotating rod 2 from swinging during rotation, thereby effectively improving its stability during rotation.

Claims

1. A method for cleaning foreign matter from a water filter in a hydropower station, characterized by: The method comprises the following steps: (1) First, move the device to the side of the water filter, insert the butt joint into the water inlet port of the water filter, and then use a rubber plug to plug the water outlet port of the water filter; (2) Then connect the external water pump to the water inlet pipe, and use the water pump to inject water into the flushing pipe, and then pour the water into the water filter; (3) When the water filter is filled with water, the motor drives the external rotating rod to rotate. Since a transmission belt is provided between the external rotating rod and the transmission wheel installed on the internal rotating rod, the motor can drive the internal rotating rod to rotate; (4) When the built-in rotating rod drives the impeller to rotate, the water inside the water filter can form a vortex, and the tumbling water can flush the inside of the water filter; (5) After the cleaning operation is completed, separate the device from the water filter, open the rubber plug at the water outlet of the water filter, and then place the standing water filter flat on the ground to drain the suspended liquid inside.

2. A method for cleaning foreign matter from a water filter in a hydropower station according to claim 1, characterized in that: A water inlet pipe connected to the interior of the flushing pipe is fixedly installed on the outer wall of the flushing pipe, and an internal rotating rod is rotatably installed inside the flushing pipe. Transmission wheels are fixedly installed on one end of the internal rotating rod and on the external rotating rod, and a transmission belt is commonly provided between the two transmission wheels. A docking joint is threadedly installed on one end of the flushing pipe, and an impeller is fixedly installed on one end of the internal rotating rod and outside the docking joint.

3. A method for cleaning foreign matter from a water filter in a hydropower station according to claim 2, characterized in that: Two built-in positioning plates are fixedly installed inside the flushing pipeline, and the built-in rotating rod passes through the two built-in positioning plates and is rotatably connected thereto.

4. A method for cleaning foreign matter from a water filter in a hydropower station according to claim 3, characterized in that: Two annular limiting plates are welded on the built-in rotating rod and close to the built-in positioning plate, and the two annular limiting plates are both arranged between the two built-in positioning plates.

5. A method for cleaning foreign matter from a water filter in a hydropower station according to claim 4, characterized in that: A rubber sealing ring is sleeved on the outer wall of the butt joint pipe head, and the rubber sealing ring is clamped in the gap between the outer wall of the butt joint pipe head and the inner wall of the water inlet port of the water filter.

6. A method for cleaning foreign matter from a water filter in a hydropower station according to claim 5, characterized in that: An anti-blocking plate is fixedly installed inside the butt joint, one end of the built-in rotating rod passes through a circular hole drilled on the anti-blocking plate and is rotatably connected thereto, and a plurality of filter screens are fixedly installed on the anti-blocking plate.

7. A method for cleaning foreign matter from a water filter in a hydropower station according to claim 6, characterized in that: A first drain pipe is fixedly installed on the outer wall of the flushing pipe and at one end close to the butt joint, and a second drain pipe is fixedly installed on the outer wall of the flushing pipe and at one end away from the first drain pipe.

8. A method for cleaning foreign matter from a water filter in a hydropower station according to claim 7, characterized in that: An external positioning plate is fixedly mounted on the top of the base, and one end of the external rotating rod away from the motor is rotatably connected to the external positioning plate.

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