Sewage discharge early warning instrument

Abstract

The utility model relates to the technical field of sewage monitoring, and provides a sewage discharge early warning instrument which comprises a frame body, and the frame body is provided with a water inlet cavity and a stirring cavity; the main shaft is rotationally arranged on the frame body, is positioned in the stirring cavity and is provided with a water pumping cavity which is provided with a water pumping inlet; the separation disc is arranged on the main shaft in a lifting and sliding manner and synchronously rotates with the main shaft, the separation disc divides the stirring cavity into an upper stirring cavity and a lower stirring cavity, the water inlet cavity is communicated with the lower stirring cavity, the water pumping inlet is communicated with the upper stirring cavity, and the separation disc is provided with a communication port which is communicated with the upper stirring cavity and the lower stirring cavity. By means of the technical scheme, the problems that in the prior art, when sewage is discharged into a collection container, the concentrations of different parts are different, the situation that reading is not changed or suddenly changed is easily caused when a sewage discharge early warning instrument conducts extraction detection, and the actual concentration in a sewage pool is difficult to accurately reflect are solved.

Description

Technical Field

[0001] The utility model relates to the technical field of sewage monitoring, and specifically to a sewage discharge early warning instrument. Background Art

[0002] The sewage discharge early warning instrument uses a water collection and distribution system to collect wastewater in real time, distribute it, and then input it into the monitoring system. The monitoring system uses sensors to monitor changes in the concentration of discharged wastewater in real time. During the wastewater collection process, a phased collection method is adopted, and a portion of wastewater is extracted from the wastewater pool into the collection container at fixed intervals. The sewage discharge early warning instrument continuously extracts wastewater from the collection container for continuous processing. However, because the extraction position is fixed, when the sewage is discharged into the collection container, the concentration varies in different parts. This makes it easy for the sewage discharge early warning instrument to have unchanged readings or sudden changes during extraction and testing, making it difficult to accurately reflect the actual concentration in the sewage pool. Utility Model Content

[0003] The utility model proposes a sewage discharge early warning instrument, which solves the problem in related technologies that when sewage is discharged into a collection container, the concentration in different parts is different, which easily causes the reading to remain unchanged or suddenly change when the sewage discharge early warning instrument performs extraction and detection, making it difficult to accurately reflect the actual concentration in the sewage pool.

[0004] The technical solution of the utility model is as follows:

[0005] A sewage discharge early warning instrument, comprising:

[0006] A frame having a water inlet cavity and a stirring cavity;

[0007] A main shaft, the main shaft is rotatably mounted on the frame and located in the stirring chamber, the main shaft having a water pumping chamber, and the water pumping chamber having a water pumping inlet;

[0008] A separation plate is arranged on the main shaft in a lifting and sliding manner and rotates synchronously with the main shaft. The separation plate separates the stirring chamber into an upper stirring chamber and a lower stirring chamber. The water inlet chamber is connected to the lower stirring chamber, and the water pumping inlet is connected to the upper stirring chamber. The separation plate has a connecting port, which connects the upper stirring chamber and the lower stirring chamber.

[0009] As a further technical solution, it also includes:

[0010] a cover plate, the cover plate being swingably disposed at the communication port and opening or closing the communication port after being swung;

[0011] A torsion spring, one end of which is arranged on the rotating shaft of the cover plate, and the other end of which is arranged on the separating disk, provides a force for the cover plate to swing.

[0012] As a further technical solution, it also includes:

[0013] The guide plate is arranged on the cover plate and is located in the upper stirring chamber. The guide plate and the cover plate are arranged at an angle in a direction perpendicular to the plate surface of the cover plate. The guide plate and the cover plate are also arranged at an angle along the plate surface of the cover plate.

[0014] As a further technical solution, the guide plate has a guide arc portion, and the guide arc portion is located on a side close to the main shaft.

[0015] As a further technical solution, the cover plate, the torsion spring and the guide plate together constitute a stirring assembly, and there are multiple stirring assemblies arranged in a circle.

[0016] As a further technical solution, the inner wall of the stirring chamber has a spiral guide groove, and the side wall of the separating disk has a sliding portion, and the sliding portion slides in the spiral guide groove.

[0017] As a further technical solution, the main shaft further comprises a water flow channel, the water flow channel is communicated with the water pumping cavity, the water flow channel has a water flow outlet, and further comprises:

[0018] The guide vane is arranged on the main shaft and is located in the upper stirring chamber. The guide vane has a water pumping channel. The two ends of the water pumping channel are respectively connected to the upper stirring chamber and the water pumping inlet. The water outlet is located below the guide vane.

[0019] As a further technical solution, the guide vane is spiral, the spiral axis is the axis of the main shaft, the guide vane has a lifting and stirring part and a liquid guiding part, the liquid guiding part is located on the side of the lifting and stirring part away from the separating plate, and the water pumping channel is located on the liquid guiding part.

[0020] As a further technical solution, the liquid guiding portion has a liquid guiding slope, which is set at an angle to the rotation radial direction of the guide vane, and one end of the liquid guiding slope is located in the upper stirring chamber, and the other end is located in the water pumping channel.

[0021] As a further technical solution, it also includes:

[0022] A sewage discharge early warning instrument, the sewage discharge early warning instrument is arranged on one side of the frame;

[0023] A sampling tube is rotatably arranged relative to the main shaft, and one end of the sampling tube extends into the pumping cavity, and the other end leads to the sewage discharge early warning instrument.

[0024] The working principle and beneficial effects of the utility model are as follows:

[0025] In the present invention, sewage first enters the water inlet chamber. Under the influence of water pressure, it rapidly flows from the inlet chamber into the lower mixing chamber. At this point, the separator disc begins to descend. During this descent, the sewage in the lower mixing chamber is subjected to pressure and flows into the upper mixing chamber through the connecting opening on the separator disc. As the separator disc rises, it drives the sewage in the upper mixing chamber, stirring it. During this process, the main shaft continuously rotates, driving the separator disc to rotate, further enhancing the stirring effect. As the separator disc continuously rises and rotates, the sewage in the upper and lower mixing chambers is thoroughly mixed and exchanged. The regular rise and fall of the separator disc and the rotation of the main shaft effectively promote thorough mixing and exchange of sewage in the upper and lower mixing chambers. This ensures that the sewage concentration entering the early warning device quickly reaches a uniform distribution, significantly reducing detection errors caused by localized differences in sewage concentration. Accurate and uniform sewage concentration distribution significantly improves the accuracy and reliability of detection results, providing precise and valuable data support for sewage discharge monitoring and early warning. Furthermore, the efficient stirring and mixing action improves the efficiency and stability of the sewage discharge early warning device, ensuring continuous and stable operation. BRIEF DESCRIPTION OF THE DRAWINGS

[0026] The preferred embodiments will be described below in a clear and understandable manner with reference to the accompanying drawings to further illustrate the above-mentioned characteristics, technical features, advantages and implementation methods of the present invention.

[0027] Figure 1 This is a schematic diagram of the structure of the utility model;

[0028] Figure 2 This is a schematic diagram of the internal structure of the utility model;

[0029] Figure 3 for Figure 2 A schematic diagram of the partially enlarged structure of the middle part A;

[0030] Figure 4 This is a schematic diagram of the internal structure of the utility model from another perspective;

[0031] Figure 5 for Figure 4 Schematic diagram of the partially enlarged structure of part B in the middle.

[0032] In the figure: frame 1, water inlet chamber 101, stirring chamber 102, upper stirring chamber 103, lower stirring chamber 104, spiral guide groove 105, main shaft 2, pumping chamber 201, pumping inlet 202, water channel 203, water outlet 204, partition plate 3, connecting port 301, sliding part 302, cover plate 4, stirring assembly 400, torsion spring 5, guide plate 6, guide arc part 601, guide blade 7, pumping channel 701, lifting stirring part 702, liquid guiding part 703, liquid guiding slope 704, sewage discharge early warning instrument 8, sampling tube 9. DETAILED DESCRIPTION

[0033] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the specific implementation methods of the present invention will be described below with reference to the accompanying drawings. Obviously, the drawings described below are only some embodiments of the present invention. For those skilled in the art, other drawings and other implementation methods can be obtained based on these drawings without inventive work.

[0034] To simplify the drawings, only the parts relevant to the utility model are schematically shown in each figure; they do not represent the actual structure of the product. Furthermore, to simplify the drawings and facilitate understanding, in some figures, only one of the components with the same structure or function is schematically shown or labeled. In this document, "one" not only means "only one" but also "more than one," and "several" includes "two" and "more than two."

[0035] It should be noted that, unless otherwise specified or limited, the terms "mounted," "connected," and "connected" should be understood broadly. For example, they can refer to fixed, detachable, or integral connections; mechanical or electrical connections; direct or indirect connections through an intermediary; and internal communication between two components. Those skilled in the art will understand the specific meanings of these terms in this utility model based on the specific circumstances.

[0036] In addition, in the description of the present application, the terms "first", "second", etc. are only used to distinguish the description and cannot be understood as indicating or implying relative importance.

[0037] Reference Figures 1 to 5An embodiment of the present utility model proposes a sewage discharge early warning instrument, including a frame 1, the frame 1 having a water inlet chamber 101 and a stirring chamber 102; the main shaft 2 is rotatably set on the frame 1 and is located in the stirring chamber 102, the main shaft 2 has a pumping chamber 201, and the pumping chamber 201 has a water pumping inlet 202; the separating plate 3 is lifted and slidably set on the main shaft 2, and rotates synchronously with the main shaft 2, the separating plate 3 separates the stirring chamber 102 into an upper stirring chamber 103 and a lower stirring chamber 104, the water inlet chamber 101 is connected to the lower stirring chamber 104, the water pumping inlet 202 is connected to the upper stirring chamber 103, the separating plate 3 has a connecting port 301, and the connecting port 301 connects the upper stirring chamber 103 and the lower stirring chamber 104.

[0038] In this embodiment, sewage first enters the water inlet chamber 101. Under the influence of water pressure, the sewage rapidly flows from the water inlet chamber 101 into the lower stirring chamber 104. At this point, the separator disc 3 begins to descend. During this descent, the sewage in the lower stirring chamber 104 is subjected to pressure and flows into the upper stirring chamber 103 through the communication port 301 on the separator disc 3. As the separator disc 3 rises, it drives the sewage in the upper stirring chamber 103, stirring it. During this process, the main shaft 2 continuously rotates, driving the separator disc 3 to rotate, further enhancing the stirring effect. As the separator disc 3 continuously rises and rotates, the sewage in the upper and lower stirring chambers 104 is thoroughly mixed and exchanged. The regular rise and fall of the separator disc 3 and the rotation of the main shaft 2 effectively promote thorough mixing and exchange of sewage in the upper and lower stirring chambers 104. This ensures that the sewage concentration entering the early warning device quickly reaches a uniform distribution, significantly reducing detection errors caused by local variations in sewage concentration. Accurate and uniform sewage concentration distribution significantly improves the accuracy and reliability of detection results, providing precise and valuable data support for sewage discharge monitoring and early warning. At the same time, the efficient stirring and mixing action also improves the working efficiency and stability of the sewage discharge early warning instrument, ensuring the continuous and stable operation of the equipment.

[0039] Furthermore, the cover plate 4 is swingably arranged at the communication port 301, and the communication port 301 is opened or closed after swinging; one end of the torsion spring 5 is arranged on the rotating shaft of the cover plate 4, and the other end is arranged on the separation plate 3, providing force for the cover plate 4 to swing.

[0040] This embodiment also includes a cover plate 4 and a torsion spring 5 arranged at the connecting port 301. The cover plate 4 is swingably arranged at the connecting port 301, and one end of the torsion spring 5 is connected to the rotating shaft of the cover plate 4, and the other end is connected to the separating disc 3. When the separating disc 3 descends, the pressure of the lower stirring chamber 104 causes the cover plate 4 to overcome the force of the torsion spring 5 and swing open the connecting port 301, so that the sewage in the lower stirring chamber 104 can enter the upper stirring chamber 103. When the separating disc 3 rises, the restoring force of the torsion spring 5 causes the cover plate 4 to swing and close the connecting port 301, preventing the sewage in the upper stirring chamber 103 from flowing back into the lower stirring chamber 104. The setting of the cover plate 4 and the torsion spring 5 realizes the automatic opening and closing control of the connecting port 301, which opens when sewage exchange is required and closes when it is not required, effectively ensuring the controllability of the sewage flow during the stirring process. It avoids the backflow of sewage in the upper stirring chamber 103 when the separating disc 3 rises, ensures the stirring effect and the uniformity of the sewage concentration distribution, and further improves the accuracy and reliability of the detection.

[0041] Furthermore, the guide plate 6 is arranged on the cover plate 4, located in the upper stirring chamber 103, and the guide plate 6 and the cover plate 4 are arranged at an angle in the direction perpendicular to the plate surface of the cover plate 4, and the guide plate 6 and the cover plate 4 are also arranged at an angle along the plate surface of the cover plate 4.

[0042] In this embodiment, when the partition plate 3 descends and the cover plate 4 opens the connecting port 301, the sewage in the upper stirring chamber 103 impacts the guide plate 6. Due to the special angle setting of the guide plate 6, the flow direction of the sewage is changed, forming a complex flow path, which promotes the thorough mixing of the sewage in the upper and lower stirring chambers 104. On the other hand, after the sewage is thoroughly mixed, the guide plate 6 guides it upward, that is, to the position of the pumping inlet 202. The special angle design of the guide plate 6 not only changes the flow direction of the sewage, enhances the stirring effect, and quickly and evenly distributes the sewage concentration, but also accurately guides the thoroughly mixed sewage to the position of the pumping inlet 202, ensuring that the sewage extracted for testing is representative, thereby significantly improving the accuracy and reliability of the test results. This precise diversion effect effectively avoids detection errors caused by inaccurate extraction positions, further enhancing the performance and practical value of the sewage discharge early warning instrument. At the same time, the dual function of the guide plate 6 simplifies the equipment structure, reduces costs, and improves the working efficiency and stability of the equipment.

[0043] Furthermore, the guide plate 6 has a guide arc portion 601 , and the guide arc portion 601 is located on a side close to the main shaft 2 .

[0044] In this embodiment, as the sewage impacts the guide plate 6, when it reaches the guide arc 601 on the side of the guide plate 6 close to the main shaft 2, the curved structure of the guide arc 601 causes the sewage to change direction more smoothly, guiding the sewage to flow and mix more effectively. The provision of the guide arc 601 reduces the resistance to the sewage during flow, making the flow direction change smoother and reducing energy loss. This helps to increase the flow rate and mixing efficiency of the sewage, allowing the sewage to achieve a uniform distribution more quickly. Furthermore, the smooth diversion effect reduces impact and wear on the equipment, thereby extending its service life.

[0045] Furthermore, the cover plate 4 , the torsion spring 5 and the guide plate 6 together constitute a stirring assembly 400 , and there are several stirring assemblies 400 arranged in a circle.

[0046] In this embodiment, when the separation plate 3 moves up and down, multiple stirring components 400 work simultaneously. Under the action of the torsion spring 5, each cover plate 4 automatically opens and closes the connecting port 301 according to the pressure change, and the guide plate 6 changes the flow direction of the sewage accordingly, realizing multi-directional and multi-angle sewage mixing and stirring. The synergistic effect of multiple circularly arranged stirring components 400 greatly improves the effect and efficiency of sewage stirring. It can make the sewage concentration more comprehensive and faster, and significantly improve the accuracy and reliability of detection. This all-round stirring method avoids the occurrence of stirring dead corners and ensures sufficient mixing of sewage. At the same time, the uniform distribution of multiple stirring components 400 also makes the equipment more balanced in force during operation.

[0047] Furthermore, the inner wall of the stirring chamber 102 has a spiral guide groove 105 , and the side wall of the separating plate 3 has a sliding portion 302 , which slides in the spiral guide groove 105 .

[0048] In this embodiment, the inner wall of the stirring chamber 102 is provided with a spiral guide groove 105, and the side wall of the separating disc 3 is provided with a sliding portion 302, which can slide in the spiral guide groove 105. The main shaft 2 can rotate in both directions. When the main shaft 2 rotates in both directions, it drives the separating disc 3 to rotate. Since the sliding portion 302 of the side wall of the separating disc 3 is located in the spiral guide groove 105 on the inner wall of the stirring chamber 102, when the main shaft 2 rotates in the forward direction, the separating disc 3 rises along the spiral guide groove 105 while rotating; when the main shaft 2 rotates in the reverse direction, the separating disc 3 descends along the spiral guide groove 105 while rotating. By the forward and reverse rotation of the main shaft 2, the separation disc 3 is alternately raised and lowered, thereby continuously changing the space size of the upper and lower stirring chambers 104 and the flow direction of the sewage. The design of the bidirectional rotation of the main shaft 2 increases the flexibility and diversity of the movement of the separating disc 3, and can stir the sewage more fully and efficiently. By alternating the spacing of the upper and lower stirring chambers 104 and the direction of sewage flow, the sewage is mixed more evenly, significantly improving the uniformity of sewage concentration distribution and significantly enhancing the accuracy and reliability of sewage concentration detection. This flexible stirring method can also adapt to sewage of different properties and concentrations, enhancing the versatility of the equipment.

[0049] Furthermore, the main shaft 2 also has a water flow channel 203, which is connected to the pumping chamber 201, and the water flow channel 203 has a water flow outlet 204. It also includes a guide vane 7 arranged on the main shaft 2, located in the upper stirring chamber 103, and the guide vane 7 has a water pumping channel 701. The two ends of the water pumping channel 701 are respectively connected to the upper stirring chamber 103 and the water pumping inlet 202, and the water flow outlet 204 is located below the guide vane 7.

[0050] In this embodiment, during sewage extraction, the sewage enters the pumping inlet 202 through the pumping channel 701 of the guide vane 7. After each extraction, a new batch of sewage enters the upper stirring chamber 103. At this time, the water outlet 204 of the water channel 203 discharges water, using the newly entered sewage to remove the sewage that was not extracted in the previous batch, ensuring that each extraction is a fresh and representative sewage sample. The configuration of the guide vane 7 ensures that sewage can effectively enter the pumping inlet 202, improving pumping efficiency. The water flowing out of the water outlet 204 further enhances the stirring effect, promoting rapid mixing of the sewage and achieving a more uniform sewage concentration. This helps improve the accuracy and reliability of detection and accurately reflects the actual sewage conditions. The design of the water outlet 204 ensures that the sewage in the upper stirring chamber 103 is updated in a timely manner, preventing residual sewage from affecting the test results, thereby improving the accuracy and reliability of detection. By continuously discharging old sewage, the freshness and representativeness of the extracted sewage sample are guaranteed, more accurately reflecting the real-time sewage conditions.

[0051] Furthermore, the guide vane 7 is spiral-shaped, and the spiral axis is the axis of the main shaft 2. The guide vane 7 has a lifting and stirring part 702 and a liquid guiding part 703. The liquid guiding part 703 is located on the side of the lifting and stirring part 702 away from the separating disk 3, and the water pumping channel 701 is located on the liquid guiding part 703.

[0052] In this embodiment, when the main shaft 2 rotates, the spiral guide blades 7 rotate accordingly. The lifting and stirring part 702 lifts the sewage upward and stirs it, thereby enhancing the mixing effect of the sewage. The pumping channel 701 on the liquid guiding part 703 guides the sewage into the pumping inlet 202. The design of the spiral guide blades 7 makes the stirring more sufficient and efficient. The lifting and stirring part 702 effectively improves the flow and mixing degree of the sewage, and promotes the rapid and uniform distribution of the sewage concentration. The pumping channel 701 on the liquid guiding part 703 can accurately guide the sewage into the pumping inlet 202, thereby improving the accuracy and stability of the pumping. This structure optimizes the function of the guide blades 7, improves the overall performance of the sewage discharge early warning instrument, and ensures the accuracy and reliability of the detection results.

[0053] Furthermore, the liquid guiding portion 703 has a liquid guiding slope 704 , which is arranged at an angle to the rotation radial direction of the guide vane 7 , and one end of the liquid guiding slope 704 is located in the upper stirring chamber 103 , and the other end is located in the pumping channel 701 .

[0054] In this embodiment, when the main shaft 2 drives the guide vanes 7 to rotate, the sewage flows inward under the action of centrifugal force. The presence of the liquid-guiding slope 704 allows the sewage to flow more smoothly from one end of the liquid-guiding slope 704 located in the upper stirring chamber 103 to the other end located in the pumping channel 701, thereby more efficiently entering the pumping channel 701. The angled setting of the liquid-guiding slope 704 optimizes the flow path of the sewage, improves the efficiency and smoothness of the sewage entering the pumping channel 701, and reduces flow resistance. This helps ensure the stability and continuity of the pumping process and improves the working efficiency and detection accuracy of the sewage discharge early warning instrument.

[0055] Furthermore, a sewage discharge early warning instrument 8 is provided on one side of the frame 1 ; a sampling tube 9 is rotatably provided relative to the main shaft 2 , and one end of the sampling tube 9 extends into the pumping cavity 201 , and the other end leads to the sewage discharge early warning instrument 8 .

[0056] In this embodiment, the rotation of the main shaft 2 drives the flow of internal sewage, and the sewage enters the sampling tube 9 through the pumping chamber 201. Since the sampling tube 9 is arranged to rotate relative to the main shaft 2, the sewage can be extracted more comprehensively during the rotation process, and then the extracted sewage is transported to the sewage discharge early warning instrument 8 for detection and analysis. The rotating design of the sampling tube 9 increases the scope and diversity of sampling, can more accurately obtain the comprehensive situation of sewage, and improve the representativeness and reliability of the test results. The cooperation with the sewage discharge early warning instrument 8 realizes real-time monitoring and early warning functions, and promptly detects abnormal conditions in sewage discharge. This structure effectively improves the monitoring capability and work efficiency of the sewage discharge early warning instrument 8, and provides strong technical support for the management and control of sewage discharge.

[0057] It should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention and are not intended to limit the present invention. Although the present invention has been described in detail with reference to the preferred embodiments, those skilled in the art should understand that the technical solutions of the present invention may be modified or replaced by equivalents without departing from the spirit and scope of the technical solutions of the present invention, and all of these should be included in the scope of the claims of the present invention.

Claims

1. A sewage discharge early warning instrument, characterized in that: include: A frame (1), the frame (1) having a water inlet chamber (101) and a stirring chamber (102); A main shaft (2), the main shaft (2) being rotatably disposed on the frame (1) and located in the stirring chamber (102), the main shaft (2) having a water pumping chamber (201), and the water pumping chamber (201) having a water pumping inlet (202); A separation plate (3) is provided on the main shaft (2) in a lifting and sliding manner and rotates synchronously with the main shaft (2). The separation plate (3) separates the stirring chamber (102) into an upper stirring chamber (103) and a lower stirring chamber (104). The water inlet chamber (101) is connected to the lower stirring chamber (104), and the water pumping inlet (202) is connected to the upper stirring chamber (103). The separation plate (3) has a communication port (301), and the communication port (301) is connected to the upper stirring chamber (103) and the lower stirring chamber (104).

2. A sewage discharge early warning device according to claim 1, characterized in that: Also includes: A cover plate (4), the cover plate (4) being swingably arranged at the communication opening (301), and opening or closing the communication opening (301) after swinging; A torsion spring (5), one end of which is arranged on the rotation axis of the cover plate (4), and the other end of which is arranged on the separation plate (3), provides a force for the cover plate (4) to swing.

3. A sewage discharge early warning device according to claim 2, characterized in that: Also includes: A guide plate (6), the guide plate (6) being arranged on the cover plate (4) and located in the upper stirring chamber (103), and the guide plate (6) and the cover plate (4) being arranged at an angle in a direction perpendicular to the plate surface of the cover plate (4), and the guide plate (6) and the cover plate (4) being arranged at an angle in a direction along the plate surface of the cover plate (4).

4. A sewage discharge early warning device according to claim 3, characterized in that: The guide plate (6) has a guide arc portion (601), and the guide arc portion (601) is located on a side close to the main shaft (2).

5. A sewage discharge early warning device according to claim 3, characterized in that: The cover plate (4), the torsion spring (5) and the guide plate (6) together form a stirring assembly (400), and the stirring assemblies (400) are multiple and arranged in a circular pattern.

6. A sewage discharge early warning device according to claim 1, characterized in that: The inner wall of the stirring chamber (102) has a spiral guide groove (105), and the side wall of the separation plate (3) has a sliding portion (302), and the sliding portion (302) slides in the spiral guide groove (105).

7. The sewage discharge early warning device according to claim 1, characterized in that: The main shaft (2) further comprises a water flow channel (203), the water flow channel (203) being in communication with the water pumping chamber (201), the water flow channel (203) having a water flow outlet (204), and further comprising: A guide vane (7), the guide vane (7) being arranged on the main shaft (2) and located in the upper stirring chamber (103), the guide vane (7) having a water pumping channel (701), the two ends of the water pumping channel (701) being respectively connected to the upper stirring chamber (103) and the water pumping inlet (202), and the water outlet (204) being located below the guide vane (7).

8. The sewage discharge early warning device according to claim 7, characterized in that: The guide vane (7) is spiral-shaped, and the spiral axis is the axis of the main shaft (2). The guide vane (7) comprises a lifting and stirring portion (702) and a liquid guiding portion (703). The liquid guiding portion (703) is located on a side of the lifting and stirring portion (702) away from the separation disc (3). The water pumping channel (701) is located on the liquid guiding portion (703).

9. A sewage discharge early warning device according to claim 8, characterized in that: The liquid guiding portion (703) has a liquid guiding inclined surface (704), the liquid guiding inclined surface (704) is arranged at an angle with the rotational radial direction of the guide vane (7), and one end of the liquid guiding inclined surface (704) is located in the upper stirring chamber (103), and the other end is located in the water pumping channel (701).

10. The sewage discharge early warning device according to claim 1, characterized in that: Also includes: A sewage discharge early warning instrument (8), the sewage discharge early warning instrument (8) being arranged on one side of the frame (1); A sampling tube (9), wherein the sampling tube (9) is rotatably arranged relative to the main shaft (2), and one end of the sampling tube (9) extends into the pumping cavity (201), and the other end leads to the sewage discharge early warning instrument (8).

Images