Water pump inlet filtering device

Abstract

The invention relates to the technical field of water pump filtering, in particular to a water pump inlet filtering device which is characterized in that the filtering device comprises a left connecting pipe, a right connecting pipe, a spherical pipe body, a water outlet pipe and a filtering net, the left end and the right end of the spherical pipe body are connected with the left connecting pipe and the right connecting pipe respectively, and a right flange plate is arranged at the end of the right connecting pipe; the right flange plate is connected with the closing plate through a locking bolt, the end of the left connecting pipe is connected with the horn pipe, the necking end of the horn pipe is connected with the left connecting pipe, the flaring end of the horn pipe faces the interior of the water storage tank, a filter screen is arranged in the spherical pipe body and is in a barrel shape, and the filter screen is connected with the right flange plate through a locking bolt. The two ends of the cylindrical filter screen are inserted into the left connecting pipe and the right connecting pipe respectively, a water outlet is formed in the side face of the spherical pipe body and connected with a water outlet pipe, the water outlet pipe is connected with an inlet of a water pump, and the device has the advantages that the structure is simple, the filtering effect is good, cleaning is convenient, and the problem that a suction inlet of the pump is blocked due to impurities is solved.

Description

Technical Field

[0001] This invention relates to the field of water pump filtration technology, specifically a water pump inlet filtration device. Background Technology

[0002] As is well known, in power plants, water storage tanks are used as cooling water. Due to the accumulation of debris in the water storage tanks over the years, these debris can be sucked into the pump body during pump operation, causing blockage at the suction inlet of the slag flushing pump and resulting in equipment failure. Therefore, a filter device needs to be installed at the pump inlet. However, existing filter devices generally involve adding a filter screen, but after prolonged use, the filter screen will become clogged, which can also cause insufficient water pressure in the pump, leading to shutdown. Summary of the Invention

[0003] The purpose of this invention is to overcome the shortcomings of the prior art and provide a water pump inlet filter device that is simple in structure, has good filtration effect, is easy to clean, and avoids pump inlet blockage caused by debris.

[0004] The technical solution adopted by this invention to solve its technical problem is: A water pump inlet filtration device is characterized in that the filtration device includes a left connecting pipe, a right connecting pipe, a spherical tube body, a water outlet pipe, and a filter screen. The left and right ends of the spherical tube body are respectively connected to the left connecting pipe and the right connecting pipe. The right connecting pipe has a right flange at its end, which is connected to a sealing plate by locking bolts. The end of the left connecting pipe is connected to a trumpet pipe, and the constricted end of the trumpet pipe is connected to the left connecting pipe. The flared end of the trumpet pipe faces into a water storage tank. The spherical tube body contains a filter screen, which is cylindrical. The two ends of the cylindrical filter screen are respectively inserted into the left connecting pipe and the right connecting pipe. The side of the spherical tube body has a water outlet, which is connected to the water outlet pipe. The water outlet pipe is connected to the inlet of the water pump. Impurities in the water are filtered through the cylindrical filter screen.

[0005] The water outlet pipe described in this invention is equipped with a flow meter, which is installed on the water outlet pipe to detect the flow rate of the water outlet pipe. If the flow rate decreases, the filter screen needs to be cleaned.

[0006] The present invention provides a filter plate installed on the flared end of the horn tube, which is fixedly connected to the flared end of the horn tube. The two-stage filtration can better protect the water pump.

[0007] The filter plate of the present invention has a mesh diameter larger than that of the filter screen to ensure water supply flow.

[0008] Because of the above-mentioned structure, the present invention has the advantages of simple structure, good filtration effect, easy cleaning, and avoidance of pump inlet blockage caused by debris. Attached Figure Description

[0009] Figure 1 This is a schematic diagram of the structure of the present invention. Detailed Implementation

[0010] The present invention will be further described below with reference to the accompanying drawings: As shown in the attached figure, a water pump inlet filtration device is characterized in that the filtration device includes a left connecting pipe 1, a right connecting pipe 2, a spherical tube body 3, a water outlet pipe 4, and a filter screen 5. The left and right ends of the spherical tube body 3 are respectively connected to the left connecting pipe 1 and the right connecting pipe 2. The right connecting pipe 2 is provided with a right flange 6 at its end, and the right flange 6 is connected to a sealing plate 7 by locking bolts 8. The end of the left connecting pipe 1 is connected to a trumpet pipe 9, and the constricted end of the trumpet pipe 9 is connected to the left connecting pipe 1. The flared end of the trumpet pipe 9 faces into the water storage tank. The spherical tube body 3 is provided with a filter screen 5, which is cylindrical. The two ends of the cylindrical filter screen 5 are respectively inserted into the left connecting pipe 1 and the right connecting pipe 2. The side of the spherical tube body 3 is provided with a water outlet, which is connected to the water outlet pipe 4. The water outlet pipe 4 is connected to the inlet of the water pump. Impurities in the water are filtered through the cylindrical filter screen 5.

[0011] Furthermore, a flow meter 10 is installed on the water outlet pipe 4. The flow meter 10 is installed on the water outlet pipe 4 to detect the flow rate of the water outlet pipe 4. If the flow rate decreases, the filter screen 5 needs to be cleaned.

[0012] Furthermore, a filter plate 11 is installed on the flared end of the horn tube 9. The filter plate 11 is fixedly connected to the flared end of the horn tube 9. The water pump can be better protected through secondary filtration.

[0013] Furthermore, the mesh diameter of the filter plate 11 is larger than that of the filter screen 5 to ensure water supply flow.

[0014] In use, the filter device is installed at the inlet of the water pump and then placed in the water storage tank. The water pump is started to pump water. Large impurities can be filtered through the filter plate 11, while small impurities can be filtered through the filter screen 5. When the flow rate of the flow meter 10 decreases significantly, the water pump is turned off, the sealing plate 7 is opened, and the filter screen 5 is removed for cleaning. After cleaning, it is inserted into the spherical tube 3, the sealing plate 7 is reinstalled, and the impurities on the filter plate 11 are cleaned. This ensures the cleaning effect. Due to the spherical design of the spherical tube 3, the water supply can be guaranteed. Because of the above structure, the present invention has the advantages of simple structure, good filtration effect, easy cleaning, and avoidance of pump inlet blockage caused by debris.

Claims

1. A water pump inlet filter apparatus, characterized by The filtering device comprises a left connecting pipe, a right connecting pipe, a spherical pipe body, a water outlet pipe and a filter screen, the left and right ends of the spherical pipe body are connected with the left connecting pipe and the right connecting pipe respectively, the end of the right connecting pipe is provided with a right flange plate, the right flange plate is connected with a closing plate through locking bolts, the end of the left connecting pipe is connected with a trumpet pipe, the trumpet pipe is connected with the left connecting pipe at the neck-in end, and the trumpet pipe is directed towards the water storage pool at the flared end, the spherical pipe body is provided with a water outlet on the side, the water outlet is connected with the water outlet pipe, the water outlet pipe is connected with the inlet of the water pump, and the impurities in the water are filtered through the cylindrical filter screen.

2. A water pump inlet filter assembly according to claim 1, wherein A flow meter is arranged on the water outlet pipe, the flow meter is arranged on the water outlet pipe to detect the flow of the water outlet pipe, and the filter screen needs to be cleaned if the flow is reduced.

3. A water pump inlet filter assembly according to claim 1, wherein A filter plate is arranged on the flared end of the trumpet pipe, the filter plate is fixedly connected with the flared end of the trumpet pipe, and the water pump can be better protected through the secondary filtering.

4. A water pump inlet filter assembly according to claim 1, wherein The mesh hole diameter of the filter plate is larger than that of the filter screen.

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