An efficient self-priming sewage pump and pipeline system

Abstract

The present invention relates to the technical field of sewage pumps, and particularly relates to an efficient self-priming sewage pump and a pipeline system, which include a pump body, a turbine assembly, a first pipeline, and a high-pressure water source; an exhaust pipeline is provided on the pump body, and the turbine assembly includes an air inlet orifice plate and a turbine; the air inlet orifice plate is arranged in the inner cavity of the pump body, separating the inner cavity of the pump body into an impeller chamber and a turbine chamber, a through hole communicating the impeller chamber with the turbine chamber is provided on the air inlet orifice plate, the turbine chamber is communicated with the exhaust pipeline, and the turbine is rotatably arranged in the turbine chamber; a first liquid level sensor is provided 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 provided between the high-pressure water source and the first pipeline. The present invention can improve the exhaust efficiency of the sewage pump and ensure the operation reliability of the sewage discharge device.

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;

[0008] Figure 2 Schematic cross-sectional structure diagram of the air inlet orifice plate of an efficient self-priming sewage pump proposed by the present invention;

[0009] Figure 3 Schematic structure diagram of a pipeline system proposed by the present invention;

[0010] Figure 4 Schematic system diagram of a pipeline system proposed by the present invention;

[0011] Label description:

[0012] 1. Pump body; 11. Exhaust pipeline; 12. First liquid level sensor;

[0013] 2. Turbine assembly; 21. Air inlet orifice plate; 211. Through hole;

[0014] 22. Turbine; 23. Volute; 24. gland;

[0015] 3. Sealing cover;

[0016] 4. First pipeline; 41. Three-way valve; 42. Third valve; 43. Gas-liquid separation valve; 44. First check valve;

[0017] 5. High-pressure water source; 6. First valve;

[0018] 7. Second pipeline; 71. Second valve; 72. Flowmeter;

[0019] 8. Collection assembly; 81. Third pipeline; 82. Fourth pipeline; 821. Second liquid level sensor; 83. Fourth valve;

[0020] 9. Fifth pipeline; 91. Fifth valve; 92. Vacuum sensor; 93. Second check valve;

[0021] 10. Central control module. Detailed implementation manners

[0022] To describe in detail the technical content, achieved objectives and effects of the present invention, the following is described in conjunction with the implementation manners and with reference to the accompanying drawings.

[0023] Please refer to Figure 1 and Figure 2As 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.

[0024] 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.

[0025] 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 ensure the operational reliability of the sewage discharge device.

[0026] 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.

[0027] 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.

[0028] 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.

[0029] 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.

[0030] 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 ensure the operational reliability of the sewage discharge device.

[0031] In certain embodiments, see Figure 3 As 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.

[0032] 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.

[0033] 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.

[0034] In some embodiments, please refer to Figure 3 As shown, the above-mentioned pipeline system further includes a collection assembly 8. The collection assembly 8 includes a third pipeline 81 and a fourth pipeline 82 that are respectively connected to the impeller chamber and the turbine chamber, and a fourth valve 83 provided on the third pipeline 81 and the fourth pipeline 82. During the process of cleaning the sewage pump, the sewage pump stops working, the fourth valve 83 is opened, so that the sewage in the impeller chamber and the turbine chamber naturally drains out of the pump body 1 through the third pipeline 81 and the fourth pipeline 82, and then the first valve 6 is opened, and the high-pressure water source 5 quickly injects water into the inner cavity of the pump body 1 to wash away the impurities in the turbine 22 and the turbine chamber.

[0035] In some embodiments, please refer to Figure 3 As shown, a second liquid level sensor 821 is provided on the fourth pipeline 82, 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 judges the water level of the sewage flowing out in the fourth pipeline 82, that is, judges the amount of sewage in the inner cavity of the turbine chamber. To ensure that the subsequent high-pressure water source 5 injects water into the inner cavity of the pump body 1 to clean the turbine 22 and the turbine chamber.

[0036] In some embodiments, please refer to Figure 3 As shown, the above-mentioned pipeline system further includes a fifth pipeline 9. The fifth pipeline 9 is connected to the liquid inlet of the impeller chamber, and a fifth valve 91 is provided on the fifth pipeline 9. When facing a fifth pipeline 9 with an inner diameter greater than or equal to the inlet size of the pump body 1 and a length exceeding 10 m, 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. Under the combined action of the impeller and the turbine 22, a negative pressure is quickly formed between the fifth pipeline 9 and the inner cavity of the pump body 1, which not only improves the exhaust efficiency of the sewage pump, but also increases the sewage discharge height.

[0037] In some embodiments, please refer to 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 to facilitate controlling the opening timing of the fifth valve 91.

[0038] In some embodiments, please refer to Figure 3 As shown, a second one-way valve 93 is provided on the fifth pipeline 9, and the second one-way valve 93 is located at the liquid inlet end of the fifth valve 91. During the process of sewage entering the inner cavity of the pump body 1 through the fifth pipeline 9, the second one-way valve 93 is used to prevent the sewage output in the fifth pipeline 9 from flowing back.

[0039] Example 1

[0040] Please refer to Figure 4As shown in the figure, 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 solenoid valves, and the flow meter 72 is set as an electromagnetic flow meter. The central control module 10 is communicatively 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.

[0041] During the working process, before the sewage pump is started, for the preparatory work, 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 pipeline 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 conveys water through the first pipeline 4 of the three-way valve 41, and the water enters the turbine chamber through the exhaust pipeline 11, and the water in the turbine chamber enters the impeller chamber through the through hole 211.

[0042] 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 will control the first valve 6 to close and control the second valve 71 and the third valve 42 to open. The sewage pump starts, a part of the air in the fifth pipeline 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 pipeline 7 by the work of the impeller. Another part of the air in the fifth pipeline 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 pipeline 11 by the work of the turbine 22 and then discharged from the first pipeline 4 out of the pump body 1. At the same time, the first pipeline 4 passes through the gas-liquid separation valve 43 to separate the water and air as much as possible, and then send the separated water into the second pipeline 7. During this process, the flow meter 72 is used to detect whether the amount of water discharged from the second pipeline 7 is abnormal to ensure the safe use of the device.

[0043] As the impeller and the turbine 22 continuously discharge 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 pipeline 9 to open, so that the sewage is sucked into the inner cavity of the pump body 1 through the fifth pipeline 9. At this time, a part of the air and sewage in the inner cavity of the pump body 1 are discharged from the liquid outlet of the impeller chamber into the second pipeline 7 by the work of the impeller, and another part of the air and sewage are introduced into the exhaust pipeline 11 by the work of the turbine 22 and then discharged from the first pipeline 4 out of the pump body 1. At the same time, the first pipeline 4 passes through the gas-liquid separation valve 43 to separate the sewage and air as much as possible, and then send the separated sewage into the second pipeline 7. During this process, the flow meter 72 is used to detect whether the amount of sewage discharged from the second pipeline 7 is abnormal to ensure the safe use of the device.

[0044] After the sewage discharge is completed, the sewage pump stops operating, 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 open, so that the sewage in the impeller chamber and the turbine chamber naturally drains out of the pump body 1 through the third pipe 81 and the fourth pipe 82. 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 wash away 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 duration of the turbine 22 and the turbine chamber.

[0045] After the central control module 10 controls the first valve 6 to close and stops the high-pressure water source 5 from outputting water, when the second liquid level sensor 821 detects that the water level of the water flowing out of the fourth pipe 82 is lower than the set value, the central control module 10 will control the fourth valve 83 to close.

[0046] The above are only the embodiments of the present invention, and do not limit the patent scope of the present invention accordingly. All equivalent transformations made by using the content of the specification and drawings of the present invention, or directly or indirectly applied in related technical fields, are equally included in the patent protection scope of the present invention.

Claims

1. A pipeline system, characterized in that: It includes an efficient self-priming sewage pump, a first pipeline, a high-pressure water source, and a collection component. The efficient self-priming sewage pump includes a pump body and a turbine component. An exhaust pipeline is provided on the pump body. The turbine component includes an air inlet orifice plate and a turbine. The air inlet orifice 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. A through hole communicating the impeller chamber and the turbine chamber is provided on the air inlet orifice plate. The turbine chamber is communicated with the exhaust pipeline. The turbine is rotatably arranged in the turbine chamber. A first liquid level sensor is provided on the pump body. The first pipeline is communicated with the exhaust pipeline. The high-pressure water source is communicated with the first pipeline. A first valve is provided between the high-pressure water source and the first pipeline. The collection component includes a third pipeline and a fourth pipeline respectively communicating the impeller chamber and the turbine chamber, and a fourth valve provided on the third pipeline and the fourth pipeline.

2. The pipeline system according to claim 1, wherein: The turbine component further includes a volute and a gland. The volute and the gland are respectively arranged at the 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 pipeline system according to claim 1, characterized in that: A sealing cover is provided at one end of the turbine component facing the exhaust pipeline. The inlet end of the exhaust pipeline passes through the sealing cover and is communicated with the turbine chamber.

4. The pipeline system according to claim 1, characterized in that: It further includes a second pipeline, which is communicated with the liquid outlet of the impeller chamber. A second valve is provided on the second pipeline. The first pipeline is communicated with the second pipeline. From the end communicating with the exhaust pipeline to the end communicating with the second pipeline, a three-way valve, a third valve, and a gas-liquid separation valve are successively arranged on the first pipeline. The high-pressure water source is communicated with the first pipeline through the three-way valve.

5. The pipeline system according to claim 4, characterized in that: A flowmeter is provided on the second pipeline, and the flowmeter is located at the liquid outlet end of the second valve.

6. The pipeline system according to claim 1, wherein: A second liquid level sensor is provided on the fourth pipeline, and the second liquid level sensor is located at the liquid outlet end of the fourth valve.

7. The pipeline system according to claim 1, wherein: It further includes a fifth pipeline, which is communicated with the liquid inlet of the impeller chamber. A fifth valve is provided on the fifth pipeline.

8. The pipeline system according to claim 7, wherein: A vacuum sensor is provided on the fifth pipeline, and the vacuum sensor is located at the liquid outlet end of the fifth valve.

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