Efficient self-absorption sewage pump and pipeline system

Abstract

The invention relates to the technical field of sewage pumps, in particular to an efficient self-absorption sewage pump and pipeline system which comprises a pump body, a turbine assembly, a first pipeline and a high-pressure water source. An exhaust pipeline is arranged on the pump body, and the turbine assembly comprises an air inlet hole plate and a turbine. The air inlet hole plate is arranged in an inner cavity of the pump body and divides the inner cavity of the pump body into an impeller chamber and a turbine chamber, a through hole communicated with the impeller chamber and the turbine chamber is formed in the air inlet hole plate, the turbine chamber is communicated with an exhaust pipeline, and the turbine is rotationally arranged in the turbine chamber; a first liquid level sensor is arranged on the pump body; the first pipeline is communicated with the exhaust pipeline, the high-pressure water source is communicated with the first pipeline, and a first valve is arranged between the high-pressure water source and the first pipeline. The exhaust efficiency of the sewage pump can be improved, and the operation reliability of the sewage discharging device is ensured.

Description

Technical Field

[0001] The invention relates to the technical field of sewage pumps, and in particular to a high-efficiency self-priming sewage pump and a piping system. Background Art

[0002] Sewage pumps are suitable for pumping a variety of sewage, wastewater and liquids containing impurities. However, when the inlet pipeline is long, the low exhaust efficiency of ordinary sewage pumps will result in a long water discharge time. At this time, it is usually necessary to install a vacuum pump to assist in air extraction to improve the startup efficiency of the sewage device. However, when the vacuum pump is pumping sewage containing solid particles, the particles can easily enter the vacuum pump, causing wear, blockage or even damage, resulting in reduced operating reliability of the entire sewage system and a high failure rate. Summary of the invention

[0003] The technical problem to be solved by the present invention is to provide a high-efficiency self-priming sewage pump and a piping system, which can improve the exhaust efficiency of the sewage pump and ensure operational reliability.

[0004] In order to solve the above technical problems, the present invention adopts a technical solution: a high-efficiency self-priming sewage pump, comprising a pump body and a turbine assembly, the pump body is provided with an exhaust pipe, and the turbine assembly comprises an air inlet plate and a turbine; the air inlet plate is arranged in the inner cavity of the pump body, dividing the inner cavity of the pump body into an impeller chamber and a turbine chamber, the air inlet plate is provided with a through hole connecting the impeller chamber and the turbine chamber, the turbine chamber is connected to the exhaust pipe, and the turbine is rotatably arranged in the turbine chamber.

[0005] Another technical solution adopted by the present invention is: a piping system, including a high-efficiency self-priming sewage pump, a first pipeline and a high-pressure water source, the high-efficiency self-priming sewage pump is the high-efficiency self-priming sewage pump described in the above technical solution, and a first liquid level sensor is provided on the pump body; the first pipeline is connected to the exhaust pipeline, the high-pressure water source is connected to the first pipeline, and a first valve is provided between the high-pressure water source and the first pipeline.

[0006] The beneficial effects of the present invention are as follows: a turbine assembly is added to the inner cavity of the pump body, and the inner cavity of the pump body is divided into an impeller chamber for installing an impeller and a turbine chamber for installing a turbine by an air inlet plate. During the startup of the sewage pump, the turbine can be used to quickly discharge the air in the inner cavity of the pump body from the exhaust pipe, thereby improving the exhaust efficiency of the sewage pump. During the sewage discharge process, the air inlet plate can be used to prevent particles in the sewage from entering the turbine chamber as much as possible, so as to protect the turbine and ensure the operational reliability of the sewage discharge device. BRIEF DESCRIPTION OF THE DRAWINGS

[0007] Figure 1 A schematic cross-sectional structure diagram of a high-efficiency self-priming sewage pump proposed by the present invention; Figure 2 A schematic cross-sectional structure diagram of an air inlet orifice plate of a high-efficiency self-priming sewage pump proposed by the present invention; Figure 3 A schematic diagram of the structure of a pipeline system proposed by the present invention; Figure 4 A schematic diagram of a piping system proposed by the present invention; Description of labels: 1. Pump body; 11. Exhaust pipe; 12. First liquid level sensor; 2. turbine assembly; 21. air inlet plate; 211. through hole; 22. turbine; 23. volute; 24. gland; 3. Sealing cover; 4. First pipeline; 41. Three-way valve; 42. Third valve; 43. Gas-liquid separation valve; 44. First one-way valve; 5. High-pressure water source; 6. First valve; 7. Second pipeline; 71. Second valve; 72. Flow meter; 8. Collection component; 81. Third pipeline; 82. Fourth pipeline; 821. Second liquid level sensor; 83. Fourth valve; 9. Fifth pipeline; 91. Fifth valve; 92. Vacuum sensor; 93. Second one-way valve; 10. Central control module. DETAILED DESCRIPTION

[0008] In order to explain the technical content, achieved objectives and effects of the present invention in detail, the following is an explanation in combination with the implementation modes and the accompanying drawings.

[0009] Please refer to Figure 1 and Figure 2 As shown, the present invention is a high-efficiency self-priming sewage pump, including a pump body 1 and a turbine assembly 2, the pump body 1 is provided with an exhaust pipe 11, and the turbine assembly 2 includes an air inlet plate 21 and a turbine 22; the air inlet plate 21 is arranged in the inner cavity of the pump body 1, and the inner cavity of the pump body 1 is divided into an impeller chamber and a turbine chamber, the air inlet plate 21 is provided with a through hole 211 connecting the impeller chamber and the turbine chamber, the turbine chamber is connected to the exhaust pipe 11, and the turbine 22 is rotatably arranged in the turbine chamber.

[0010] Working principle: During the startup of the sewage pump, part of the air in the inner cavity of the pump body 1 is discharged from the liquid outlet of the impeller chamber by the operation of the impeller, and the other part of the air is introduced into the exhaust pipe 11 by the turbine 22 to be discharged from the pump body 1, thereby improving the exhaust efficiency of the sewage pump.

[0011] During the sewage discharge process, the air inlet plate 21 can prevent particles in the sewage from entering the turbine chamber as much as possible, so as to protect the turbine 22 and further ensure the operational reliability of the sewage discharge device.

[0012] In certain embodiments, see Figure 1 As shown, the turbine assembly 2 further includes a volute 23 and a gland 24. The volute 23 and the gland 24 are respectively arranged at the axial ends of the turbine 22. The volute 23 is fixedly arranged in the turbine chamber, and the gland 24 is arranged on the volute 23. The volute 23 is used to ensure the stable operation of the turbine 22 in the turbine chamber, and the gland 24 is used to further protect the turbine 22.

[0013] In certain embodiments, see Figure 1 As shown, the turbine assembly 2 is provided with a sealing cover 3 at one end facing the exhaust pipe 11, and the air inlet end of the exhaust pipe 11 is connected to the turbine chamber through the sealing cover 3. The sealing cover 3 is used to prevent sewage from entering the shaft seal cavity of the pump body 1, so as to ensure the operating reliability of the sewage pump.

[0014] Please refer to Figure 3 As shown, a piping system includes a high-efficiency self-priming sewage pump, a first pipeline 4 and a high-pressure water source 5. The high-efficiency self-priming sewage pump is the high-efficiency self-priming sewage pump described in the above technical solution, and a first liquid level sensor 12 is provided on the pump body 1; the first pipeline 4 is connected to the exhaust pipeline 11, the high-pressure water source 5 is connected to the first pipeline 4, and a first valve 6 is provided between the high-pressure water source 5 and the first pipeline 4.

[0015] Working principle: before starting the sewage pump, the first valve 6 is opened, and the high-pressure water source 5 quickly delivers water to the first pipe 4. The water enters the turbine chamber through the exhaust pipe 11, and the water in the turbine chamber enters the impeller chamber through the through hole 211 to ensure that there is water to cool the impeller and turbine 22 during the subsequent emptying process. When the water level in the impeller chamber reaches a certain height, the first valve 6 is closed, the sewage pump is started, and part of the air and water in the inner cavity of the pump body 1 is discharged from the liquid outlet of the impeller chamber by the work of the impeller, and the other part of the air and water is introduced into the exhaust pipe 11 by the work of the turbine 22, and then discharged from the pump body 1 from the first pipe 4. The air in the inner cavity of the pump body 1 can be quickly discharged through the cooperation of the impeller and the turbine 22.

[0016] During the sewage discharge process, the air inlet plate 21 can prevent particles in the sewage from entering the turbine chamber as much as possible, so as to protect the turbine 22 and further ensure the operational reliability of the sewage discharge device.

[0017] In certain embodiments, see Figure 3As shown, the above-mentioned pipeline system also includes a second pipeline 7, which is connected to the liquid outlet of the impeller chamber, and a second valve 71 is provided on the second pipeline 7; the first pipeline 4 is connected to the second pipeline 7, and the first pipeline 4 is provided with a three-way valve 41, a third valve 42 and a gas-liquid separation valve 43 from one end connected to the exhaust pipeline 11 to one end connected to the second pipeline 7, and the high-pressure water source 5 is connected to the first pipeline 4 through the three-way valve 41. During the startup process, the third valve 42 is closed to ensure that the water output by the high-pressure water source 5 can enter the pump body 1 from the first pipeline 4 after passing through the three-way valve 41. During the sewage discharge process, the second valve 71 and the third valve 42 are opened, and the first valve 6 is closed, so that the impeller can smoothly output the sewage to the second pipeline 7, the turbine can smoothly output the sewage to the first pipeline 4, and then merge into the second pipeline 7, and at the same time, the first pipeline 4 separates the sewage and air as much as possible through the gas-liquid separation valve 43, and then sends the separated sewage to the second pipeline 7.

[0018] In certain embodiments, see Figure 3 As shown, a flow meter 72 is provided on the second pipe 7, and the flow meter 72 is located at the liquid outlet of the second valve 71. During the sewage discharge process, the flow meter 72 is used to determine whether there is sewage output from the second pipe 7 to prevent the impeller and the turbine 22 from idling.

[0019] In certain embodiments, see Figure 3 As shown, a first one-way valve 44 is provided on the first pipeline 4, and the first one-way valve 44 is located at the liquid outlet end of the gas-liquid separation valve 43. The first one-way valve 44 is used to prevent the sewage output from the first pipeline 4 from flowing back.

[0020] In certain embodiments, see Figure 3 As shown, the above-mentioned piping system further includes a collecting assembly 8, and the collecting assembly 8 includes a third pipe 81 and a fourth pipe 82 respectively connected to the impeller chamber and the turbine chamber, and a fourth valve 83 arranged on the third pipe 81 and the fourth pipe 82. In the process of cleaning the sewage pump, the sewage pump stops working, and the fourth valve 83 is opened to allow the sewage in the impeller chamber and the turbine chamber to be naturally discharged from the pump body 1 through the third pipe 81 and the fourth pipe 82, and then the first valve 6 is opened, and water is quickly injected into the inner cavity of the pump body 1 from the high-pressure water source 5 to flush out impurities in the turbine 22 and the turbine chamber.

[0021] In certain embodiments, see Figure 3As shown, the fourth pipe 82 is provided with a second liquid level sensor 821, and the second liquid level sensor 821 is located at the liquid outlet end of the fourth valve 83. During the natural drainage process of the sewage pump, the second liquid level sensor 821 determines the sewage level flowing out of the fourth pipe 82, that is, determines the amount of sewage in the inner cavity of the turbine chamber, so as to ensure that the high-pressure water source 5 subsequently injects water into the inner cavity of the pump body 1 to clean the turbine 22 and the turbine chamber.

[0022] In certain embodiments, see Figure 3 As shown, the above-mentioned piping system further includes a fifth pipeline 9, which is connected to the liquid inlet of the impeller chamber, and a fifth valve 91 is provided on the fifth pipeline 9. When facing the fifth pipeline 9 whose inner diameter is greater than or equal to the inlet size of the pump body 1 and whose length exceeds 10m, while the inner cavity of the pump body 1 is emptied, the fifth valve 91 is opened to connect the fifth pipeline 9 with the inner cavity of the pump body 1, and under the joint action of the impeller and the turbine 22, the fifth pipeline 9 and the inner cavity of the pump body 1 are quickly formed with negative pressure, which not only improves the exhaust efficiency of the sewage pump, but also increases the sewage discharge height.

[0023] In certain embodiments, see Figure 3 As shown, a vacuum sensor 92 is provided on the fifth pipeline 9, and the vacuum sensor 92 is located at the liquid outlet end of the fifth valve 91. The vacuum degree of the inner cavity of the pump body 1 is detected by the vacuum sensor 92, so as to control the opening time of the fifth valve 91.

[0024] In certain embodiments, see Figure 3 As shown, the fifth pipe 9 is provided with a second one-way valve 93, which is located at the liquid inlet end of the fifth valve 91. When the sewage enters the inner cavity of the pump body 1 through the fifth pipe 9, the second one-way valve 93 is used to prevent the sewage output from the fifth pipe 9 from flowing back.

[0025] Embodiment 1 Please refer to Figure 4 As shown, in this embodiment, a central control module 10 is added, and the first valve 6, the second valve 71, the third valve 42, the fourth valve 83 and the fifth valve 91 are set as electromagnetic valves, and the flow meter 72 is set as an electromagnetic flow meter. The central control module 10 is connected to the first valve 6, the second valve 71, the third valve 42, the fourth valve 83, the fifth valve 91, the flow meter 72, the first liquid level sensor 12, the second liquid level sensor 821, the vacuum sensor 92 and the high-pressure water source 5 for communication.

[0026] During the working process, the sewage pump is prepared before starting up. The central control module 10 controls the second valve 71, the third valve 42, the fourth valve 83 and the liquid inlet end of the fifth pipe 9 to be closed, and the fifth valve 91 and the first valve 6 to be opened, so that the high-pressure water source 5 transports water through the three-way valve 41 and the first pipe 4, and the water enters the turbine chamber through the exhaust pipe 11, and the water in the turbine chamber enters the impeller chamber through the through hole 211.

[0027] When the first liquid level sensor 12 detects that the water level in the impeller chamber reaches the set value, the central control module 10 controls the first valve 6 to close, and controls the second valve 71 and the third valve 42 to open. The sewage pump starts, and a part of the air in the fifth pipe 9, as well as a part of the air and water in the inner cavity of the pump body 1, are discharged from the liquid outlet of the impeller chamber into the second pipe 7 by the work of the impeller, and another part of the air in the fifth pipe 9, as well as another part of the air and water in the inner cavity of the pump body 1, are introduced into the exhaust pipe 11 by the work of the turbine 22, and then discharged from the first pipe 4 to the pump body 1. At the same time, the first pipe 4 separates the water and air as much as possible through the gas-liquid separation valve 43, and then sends the separated water into the second pipe 7. In this process, the flow meter 72 is used to detect whether the amount of water discharged from the second pipe 7 is abnormal to ensure the safe use of the device.

[0028] As the impeller and turbine 22 continuously output the water and air in the inner cavity of the pump body 1, a negative pressure environment is gradually formed in the inner cavity of the pump body 1. The vacuum sensor 92 is used to detect whether the vacuum degree in the impeller chamber is normal. At the same time, when the vacuum sensor 92 detects that the vacuum degree in the impeller chamber reaches the set value, the central control module 10 will control the liquid inlet end of the fifth pipe 9 to open, so that the sewage is sucked into the inner cavity of the pump body 1 through the fifth pipe 9. At this time, part of the air and sewage in the inner cavity of the pump body 1 are discharged into the second pipe 7 from the liquid outlet of the impeller chamber by the work of the impeller, and the other part of the air and sewage are introduced into the exhaust pipe 11 by the work of the turbine 22, and then discharged from the pump body 1 from the first pipe 4. At the same time, the first pipe 4 separates the sewage and air as much as possible through the gas-liquid separation valve 43, and then sends the separated sewage to the second pipe 7. In this process, the flow meter 72 is used to detect whether the amount of sewage discharged from the second pipe 7 is abnormal to ensure the safe use of the device.

[0029] After the sewage is discharged, the sewage pump stops working, and the central control module 10 controls the first valve 6, the second valve 71, the third valve 42 and the fifth valve 91 to close, and controls the fourth valve 83 to start, so that the sewage in the impeller chamber and the turbine chamber is naturally discharged from the third pipe 81 and the fourth pipe 82 to the pump body 1. When the second liquid level sensor 821 detects that the sewage level flowing out of the fourth pipe 82 is lower than the set value, the central control module 10 will control the first valve 6 to open, and the high-pressure water source 5 will quickly inject water into the inner cavity of the pump body 1 to flush out the impurities in the turbine 22 and the turbine chamber. Among them, the opening time of the first valve 6 and the output time of the high-pressure water source 5 can be set in the central control module 10 to control the cleaning time of the turbine 22 and the turbine chamber.

[0030] When the central control module 10 controls the first valve 6 to close and stops the high-pressure water source 5 from outputting water, the second liquid level sensor 821 detects that the water level flowing out of the fourth pipe 82 is lower than the set value, and the central control module 10 controls the fourth valve 83 to close.

[0031] The above descriptions are merely embodiments of the present invention and are not intended to limit the patent scope of the present invention. Any equivalent transformations made using the contents of the present invention's specification and drawings, or directly or indirectly applied in related technical fields, are also included in the patent protection scope of the present invention.

Claims

1. A high-efficiency self-priming sewage pump, characterized by: It includes a pump body and a turbine assembly, wherein the pump body is provided with an exhaust pipe. The turbine assembly includes an air inlet plate and a turbine; the air inlet plate is arranged in the inner cavity of the pump body to divide the inner cavity of the pump body into an impeller chamber and a turbine chamber, the air inlet plate is provided with a through hole connecting the impeller chamber and the turbine chamber, the turbine chamber is connected to the exhaust pipe, and the turbine is rotatably arranged in the turbine chamber.

2. According to claim 1, the high-efficiency self-priming sewage pump is characterized in that: The turbine assembly further includes a volute and a gland. The volute and the gland are respectively arranged at two axial ends of the turbine. The volute is fixedly arranged in the turbine chamber, and the gland is arranged on the volute.

3. The high-efficiency self-priming sewage pump according to claim 1 is characterized in that: A sealing cover is provided at one end of the turbine assembly facing the exhaust pipe, and an air inlet end of the exhaust pipe is communicated with the turbine chamber through the sealing cover.

4. A piping system, characterized in that: It comprises a high-efficiency self-priming sewage pump, a first pipeline and a high-pressure water source, wherein the high-efficiency self-priming sewage pump is the high-efficiency self-priming sewage pump according to any one of claims 1 to 3, and a first liquid level sensor is provided on the pump body; The first pipeline is in communication with the exhaust pipeline, the high-pressure water source is in communication with the first pipeline, and a first valve is provided between the high-pressure water source and the first pipeline.

5. The piping system according to claim 4, characterized in that: It also includes a second pipeline, the second pipeline is connected to the liquid outlet of the impeller chamber, and a second valve is provided on the second pipeline; The first pipeline is connected to the second pipeline. The first pipeline is provided with a three-way valve, a third valve and a gas-liquid separation valve in sequence from one end connected to the exhaust pipeline to one end connected to the second pipeline. The high-pressure water source is connected to the first pipeline through the three-way valve.

6. The piping system according to claim 5, characterized in that: The second pipeline is provided with a flow meter, and the flow meter is located at the liquid outlet end of the second valve.

7. The piping system according to claim 4, characterized in that: It also includes a collecting assembly, which includes a third pipe and a fourth pipe respectively connected to the impeller chamber and the turbine chamber, and a fourth valve arranged on the third pipe and the fourth pipe.

8. The piping system according to claim 7, characterized in that: The fourth pipeline is provided with a second liquid level sensor, and the second liquid level sensor is located at the liquid outlet end of the fourth valve.

9. The pipeline system according to claim 4, characterized in that: It also includes a fifth pipeline, which is communicated with the liquid inlet of the impeller chamber, and a fifth valve is provided on the fifth pipeline.

10. The pipeline system according to claim 9, characterized in that: The fifth pipeline is provided with a vacuum sensor, and the vacuum sensor is located at the liquid outlet end of the fifth valve.

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