Sewage discharge pipe for water conservancy project

Abstract

The invention relates to the technical field of hydraulic engineering, and discloses a sewage discharge pipe for hydraulic engineering, which comprises a plate type blocking driven structure, three elastic telescopic pressure applying structures and a spiral sundries directional driving structure. According to the sewage discharge pipe for the water conservancy project, sundries in sewage can present a stacking effect under a certain pressure by utilizing a spiral feeding principle, so that the filtering barrel for filtering can normally filter the sundries; the accumulated impurities can be discharged outwards on the premise of mutual extrusion under the conveying pressure of the spiral impeller after being gathered to a certain degree, so that when the impurities are discharged outwards, the sewage cannot be leaked, the sewage can be filtered normally, sewage filtering and impurity removal are consistent, and the service life of the sewage is prolonged. And sundries can be discharged in time, so that the sewage filtering efficiency is improved.

Description

Technical Field

[0001] This invention relates to the field of water conservancy engineering technology, specifically to a sewage discharge pipe for water conservancy projects. Background Technology

[0002] Water conservancy projects are engineering projects built to control and regulate surface water and groundwater in nature to achieve the purpose of eliminating harm and promoting benefits; they are also called water engineering projects.

[0003] For example, Chinese patent publication number "CN217463722U" discloses "A Novel Wastewater Discharge Pipe for Chemical Use," whose main structure includes a pipe. A groove is formed on the inner wall surface of the pipe, and a slider is installed inside the groove. An extension block is provided on the outer wall surface of the slider, and a first movable block is provided on the outer wall surface of the extension block. A first movable hook is installed on one side of the first movable block, and a sealing ring is provided on one side of the first movable hook. This novel wastewater discharge pipe for chemical use, by setting up a pipe, groove, slider, extension block, first slot, first locking block, and filter screen, allows the first locking block to be moved longitudinally and inserted into the first slot, enabling the first locking block and the first slot to cooperate and install, thus allowing the filter screen to function properly and conveniently achieve a filtering and anti-clogging effect. Then, pulling the extension block causes the slider to move the extension block, facilitating its extension.

[0004] As described above, the novel wastewater discharge pipe for chemical use relies on a filter screen to filter impurities in wastewater. However, the filter screen at one end of the pipe is easily clogged by impurities during the filtration process. Under water pressure, the impurities are squeezed against the screen and are difficult to remove by the water flow, causing them to accumulate and clog the pipe, hindering drainage. In existing technologies, scrapers are typically used to remove impurities from the filter screen surface to prevent clogging. While scrapers can remove most of the impurities, the presence of aquatic plants and other impurities in the water makes them difficult to remove. These plants also clog the screen, further hindering drainage.

[0005] To this end, Chinese Patent Publication No. CN113898819A discloses "A Sewage Discharge Pipe for Water Conservancy Projects". Its main structure includes an inlet pipe, a treatment box fixedly connected to the left side of the outer surface of the inlet pipe, and an outlet pipe fixedly connected to the left side of the outer surface of the treatment box. A filter plate is fixedly connected inside the treatment box at the connection point between the treatment box and the outlet pipe. The filter plate has evenly distributed filter holes on its surface. A first hydraulic rod is fixedly installed in the middle of the upper surface of the treatment box. A movable plate is fixedly connected to the lower surface of the first hydraulic rod and slides within the treatment box. A first fixed plate is fixedly installed on the upper surface of the movable plate near the filter plate. This sewage discharge pipe for water conservancy projects incorporates scrapers and hooks. The scrapers push away impurities on the filter plate surface, preventing accumulation and clogging of the filter holes. The hooks remove weeds entangled on the filter plate surface, further preventing clogging and improving filtration efficiency.

[0006] As described above, the sewage discharge pipes used in these water conservancy projects rely on moving scrapers and hooks to remove blockages. The scrapers push away impurities on the filter plate surface, preventing them from accumulating and clogging the filter holes. The hooks remove weeds entangled on the filter plate surface. However, in practice, these sewage discharge pipes cannot remove accumulated debris in a timely manner. Instead, the water flow must be stopped before manual removal, resulting in a lack of continuity in the removal process. Furthermore, to ensure proper filtration, frequent manual cleaning of accumulated debris is necessary, severely impacting the efficiency of sewage filtration. Summary of the Invention

[0007] To address the shortcomings of existing technologies, this invention provides a sewage discharge pipe for water conservancy projects. Utilizing a spiral feeding principle, impurities in the sewage accumulate under pressure, allowing the filter cylinder to effectively filter these impurities. Once the accumulated impurities reach a certain level, they are discharged outwards under the conveying pressure of the spiral impeller, thus preventing sewage leakage and ensuring normal sewage filtration. This provides a continuous process for sewage filtration and impurity removal, while also ensuring timely discharge of impurities, thereby improving sewage filtration efficiency and solving the aforementioned technical problems.

[0008] To achieve the above objectives, the present invention provides the following technical solution: a sewage discharge pipe for water conservancy projects, comprising a transverse sewage flow pipe with a transverse sewage flow cavity at its center, a filter cavity disposed around the transverse sewage flow cavity, a longitudinal sewage flow pipe disposed on the circumferential side of the transverse sewage flow pipe and communicating with the filter cavity, and a filter cylinder installed at the intersection of the filter cavity and the transverse sewage flow cavity; further comprising a plate-type blocking driven structure, which internally comprises a plunger structure inserted into the drainage port of the transverse sewage flow cavity and inside the sewage discharge pipe for water conservancy projects, a limiting contact plate integrally disposed at one end of the plunger structure and capable of abutting against the end of the transverse sewage flow pipe, and a central rod moving hole disposed at the center of the limiting contact plate and the plunger structure; three elastic telescopic... The pressure structure includes a transverse hollow shell fixedly installed on the end face of the limiting contact plate, a plate placed inside the transverse hollow shell and passing through the limiting contact plate, a horizontal telescopic rod with its end structure fixedly installed on the end face of the transverse sewage flow pipe, and a helical spring that generates outward elastic pressure on the horizontal telescopic rod and causes the limiting contact plate to abut against the end face of the transverse sewage flow pipe with this pressure; and a helical debris directional drive structure, which includes a drive motor fixedly installed on one side of the limiting contact plate, a horizontal rotating shaft that connects to the rotor of the drive motor and passes through the rod's moving hole and extends into the transverse sewage flow chamber, and a helical impeller located around the rod of the horizontal rotating shaft that, during directional rotation, can drive surrounding debris to generate a helical impeller that moves in the direction of the plunger structure.

[0009] Preferably, the plate-type blocking driven structure includes a limiting contact plate whose end face abuts against the end face of the transverse sewage flow pipe. The limiting contact plate has a plunger structure integrally formed with the limiting contact plate on its end face facing the drainage port of the transverse sewage flow chamber. The plunger structure is inserted into the drainage port of the transverse sewage flow chamber. The limiting contact plate has a side rod moving hole near its circumference that connects to both ends of the limiting contact plate. The center of the limiting contact plate has a central hole connecting both ends of the limiting contact plate. The plunger structure has an inner annular embedding groove on the circumferential side of the central rod body moving hole, and an outer annular embedding groove on the outer circumferential side of the plunger structure. An inner annular sealing ring is embedded inside the inner annular embedding groove of the plunger structure, and an outer annular sealing ring is embedded inside the outer annular embedding groove of the plunger structure. The structural radius of the outer circumferential side of the plunger structure matches the diameter of the transverse sewage flow cavity, and the structural radius of the outer circumferential surface of the limiting contact plate is consistent with the end structural radius of the transverse sewage flow cavity.

[0010] Preferably, the plunger structure has a chamfered structure at the annular corner that extends into the transverse sewage flow chamber.

[0011] Preferably, the elastic telescopic pressure structure includes a transverse hollow shell. One end face of the transverse hollow shell is provided with an annular abutment plate that is integral with the transverse hollow shell and can abut against the end face of the limiting abutment plate. The interior of the transverse hollow shell is provided with a transverse component movable cavity arranged along the axial direction of the transverse hollow shell. The end face of the annular abutment plate is provided with a component telescopic hole that connects the external space of the transverse hollow shell and the transverse component movable cavity. The transverse hollow shell has a movable plate that can move along the axial direction of the transverse component movable cavity placed inside the transverse component movable cavity. The end face of the movable plate is equipped with a plate body that passes through the component telescopic hole and the limiting abutment plate, and the end structure is fixedly installed on the end face of the transverse sewage flow pipe. A helical spring is sleeved around the rod body located inside the transverse component movable cavity, which generates outward elastic pressure on the horizontal telescopic rod and causes the limiting abutment plate to abut against the end face of the transverse sewage flow pipe with this pressure.

[0012] Preferably, the initial length of the helical spring is greater than the lateral length of the movable cavity of the lateral component.

[0013] Preferably, the spiral debris directional drive structure includes a main fixing plate that can be fixedly installed. A motor fixing base is fixedly installed on one end face of the main fixing plate. A drive motor is fixedly installed inside the motor fixing base. A horizontal rotating shaft that passes through the main fixing plate and the central rod moving hole is fixedly installed at the rotor end of the drive motor. The shaft of the horizontal rotating shaft extends into the interior of the transverse sewage flow chamber. A spiral impeller that is integral with the horizontal rotating shaft is provided on the shaft located inside the transverse sewage flow chamber.

[0014] Preferably, the horizontal rotating shaft has a pointed structure at the end of the hydraulic engineering structure facing the inlet port of the transverse sewage flow chamber to facilitate liquid flow.

[0015] Preferably, it further includes a liquid compensation port and an annular gas film liquid energy storage structure. The liquid compensation port is disposed on the circumferential side of the transverse sewage flow pipe and connects the outer side of the transverse sewage flow pipe and the filter cavity. The annular gas film liquid energy storage structure is sleeved on the outer periphery of the circumferential side of the transverse sewage flow pipe. Inside it is an annular gas compression cavity located on the outer periphery of the transverse sewage flow pipe and in a closed state, and an annular elastic gas film that expands towards the interior of the annular gas compression cavity after being subjected to liquid pressure from the direction of the liquid compensation port.

[0016] Preferably, the annular gas film liquid energy storage structure includes an annular hollow sleeve. The annular hollow sleeve has a central hole at its center that can be fitted around the periphery of a transverse sewage flow pipe. Both ends of the annular hollow sleeve have annular fixing sleeves that are integrally formed with the annular hollow sleeve and fixedly installed around the periphery of the transverse sewage flow pipe. The annular hollow sleeve has an annular gas compression cavity located outside the liquid compensation port. The annular hollow sleeve has a central annular embedding groove located outside the liquid compensation port, and the outer circumferential side of the central annular embedding groove communicates with the inner side of the annular gas compression cavity. The annular fixing sleeve has outer annular embedding grooves on both sides of the central annular embedding groove. An annular sealing ring is embedded inside the outer annular embedding groove of the annular fixing sleeve, and the inner annular surface of the annular sealing ring abuts against the outer circumferential side of the annular hollow sleeve in a pressing manner. The annular hollow sleeve is filled with gas inside the annular gas compression cavity, and an annular elastic gas film is embedded inside the central annular embedding groove of the annular hollow sleeve.

[0017] Preferably, the annular elastic air membrane is an annular structure made of elastic rubber material, and the initial elastic strength of the annular elastic air membrane is sufficient to withstand the strength of sewage flowing without resistance.

[0018] Compared with the prior art, the present invention provides a sewage discharge pipe for water conservancy projects, which has the following characteristics:

[0019] Beneficial effects:

[0020] The water conservancy project uses a sewage discharge pipe.

[0021] 1. The screw feeding principle allows impurities in the wastewater to accumulate under certain pressure, enabling the filter cylinder to effectively filter the impurities. Once the accumulated impurities reach a certain level, they are discharged outward under the conveying pressure of the screw impeller, thus preventing wastewater leakage and ensuring normal wastewater filtration. This provides a continuous process for wastewater filtration and impurity removal, while also ensuring timely discharge of impurities, thereby improving the efficiency of wastewater filtration.

[0022] 2. By setting up a plate-type blocking driven structure, the debris will generate pressure towards the plunger structure under the continuous conveying action of the spiral impeller. The debris will form an accumulation effect between the spiral impeller and the plunger structure, and the debris will squeeze each other at the accumulation point. As a result, the filtered debris will concentrate and accumulate in the area between the plunger structure and the spiral impeller, so that the filtered debris forms an aggregated state, realizing the directional separation of debris and sewage.

[0023] 3. By setting up an elastic telescopic pressure structure, the elastic force generated by the helical spring will act on the debris between the plunger structure and the helical impeller, causing the debris to squeeze against each other. Therefore, there will be no gaps between the debris, thus preventing sewage from leaking outward along the gaps in the debris. Under its own elastic pressure, the helical spring can also reset in time, thus ensuring that sewage discharge and debris removal can be carried out simultaneously. Attached Figure Description

[0024] Figure 1 This is a perspective view of the present invention;

[0025] Figure 2 This is a three-dimensional cross-sectional view of the present invention;

[0026] Figure 3 This is a perspective view of the plate-type blocking driven structure in this invention;

[0027] Figure 4 This is a three-dimensional cross-sectional view of the plate-type blocking driven structure in this invention;

[0028] Figure 5 This is a three-dimensional cross-sectional view of the elastic telescopic pressure-applying structure in this invention;

[0029] Figure 6 This is a perspective view of the spiral debris orientation drive structure in this invention;

[0030] Figure 7 This is a perspective view of the annular gas-film liquid energy storage structure in this invention;

[0031] Figure 8 This is a three-dimensional cross-sectional view of the annular gas-film liquid energy storage structure in this invention.

[0032] The components include: 1. Transverse sewage flow pipe; 2. Transverse sewage flow cavity; 3. Filter cavity; 4. Longitudinal sewage flow pipe; 5. Liquid compensation port; 6. Plate-type blocking driven structure; 61. Limiting contact plate; 62. Plunger structure; 63. Central rod moving hole; 64. Side rod moving hole; 65. Inner annular embedding groove; 66. Outer annular embedding groove; 67. Inner annular sealing ring; 68. Outer annular sealing ring; 69. Chamfered structure; 7. Elastic telescopic pressure structure; 71. Transverse hollow shell; 72. Annular contact plate; 73. Transverse component movable cavity; 74. Part 75. Telescopic hole; 76. Movable plate; 77. Horizontal telescopic rod; 88. Helical spring; 99. Helical debris directional drive structure; 10. Main fixing plate; 11. Motor fixing base; 12. Drive motor; 13. Horizontal rotating shaft; 14. Helical impeller; 15. Tip structure; 16. Annular gas film liquid energy storage structure; 17. Annular hollow sleeve; 18. Middle sleeve hole; 19. Annular fixing sleeve; 10. Annular gas compression cavity; 11. Outer annular embedded groove; 12. Middle annular embedded groove; 13. Annular elastic gas film; 14. Annular sealing ring; 15. Filter cylinder. Detailed Implementation

[0033] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0034] Please see Figure 1 and Figure 2 A sewage discharge pipe for water conservancy projects includes a transverse sewage flow pipe 1 with a transverse sewage flow cavity 2 at its center, a filter cavity 3 located around the transverse sewage flow cavity 2, a longitudinal sewage flow pipe 4 located on the circumferential side of the transverse sewage flow pipe 1 and communicating with the filter cavity 3, and a filter cylinder 10 installed at the intersection of the filter cavity 3 and the transverse sewage flow cavity 2. Before operation, the water inlet port of the transverse sewage flow pipe 1 needs to be connected to the sewage discharge pipe, and the longitudinal sewage flow pipe 4 needs to be connected to the pipe receiving the filtered sewage. Then, the main fixing plate 81 is fixedly connected to the bracket for fixing. When the sewage enters from the water inlet port of the transverse sewage flow pipe 1, the impurities are blocked on the inner annular surface of the filter cylinder 10 under the filtering action of the filter cylinder 10. The filtered sewage can enter the longitudinal sewage flow pipe 4 through the filter cavity 3 and then flow to the subsequent equipment through the longitudinal sewage flow pipe 4.

[0035] To achieve targeted separation of debris and wastewater by causing the filtered impurities to aggregate, please refer to [link / reference needed]. Figure 1, Figure 2 , Figure 3 and Figure 4 A plate-type blocking driven structure 6 needs to be set up. Inside the structure, there is a plunger structure 62 inserted into the sewage discharge pipe of the hydraulic engineering at the drainage port of the transverse sewage flow chamber 2, a limiting contact plate 61 integrally set at one end of the plunger structure 62 and able to abut against the end of the transverse sewage flow pipe 1, and a central rod moving hole 63 set at the center of the limiting contact plate 61 and the plunger structure 62. Under the continuous conveying action of the spiral impeller 85, the debris will generate pressure towards the plunger structure 62. The debris will form an accumulation effect between the spiral impeller 85 and the plunger structure 62, and the debris will squeeze each other at the accumulation point. As a result, the filtered debris will concentrate and accumulate in the area between the plunger structure 62 and the spiral impeller 85, so that the filtered debris forms an aggregated state, realizing the directional separation of debris and sewage.

[0036] For details regarding the specific structure of the plate-type blocking driven structure 6, please refer to [link / reference]. Figure 3 and Figure 4 The system includes a limiting contact plate 61 whose end face abuts against the end face of the transverse sewage flow pipe 1. The limiting contact plate 61 has a plunger structure 62 integrally formed with the end face facing the drainage port of the transverse sewage flow chamber 2 (sewage discharge pipe for water conservancy projects). To facilitate insertion and movement of the components, the plunger structure 62 has a chamfered structure 69 at its annular corner extending into the transverse sewage flow chamber 2. The plunger structure 62 is inserted into the drainage port of the transverse sewage flow chamber 2 (sewage discharge pipe for water conservancy projects). The limiting contact plate 61 has a side rod moving hole 64 near its circumference, connecting the two ends of the limiting contact plate 61. The center of the limiting contact plate 61... The plunger structure 62 is provided with a central rod moving hole 63 on both ends of the connecting limiting contact plate 61. The plunger structure 62 has an inner annular embedding groove 65 on the circumferential side of the central rod moving hole 63 and an outer annular embedding groove 66 on the outer circumferential side. An inner annular sealing ring 67 is embedded in the inner annular embedding groove 65 and an outer annular sealing ring 68 is embedded in the outer annular embedding groove 66. The structural radius of the outer circumferential side of the plunger structure 62 matches the diameter of the transverse sewage flow cavity 2, and the structural radius of the outer circumferential surface of the limiting contact plate 61 is consistent with the end structural radius of the transverse sewage flow cavity 2.

[0037] To create a clamping effect with the accumulated debris, thus preventing sewage from leaking out through the gaps in the debris, please refer to [link / reference needed]. Figure 1 , Figure 2 and Figure 5Three elastic telescopic pressure structures 7 need to be set up. Each structure contains a transverse hollow shell 71 fixedly installed on the end face of the limiting contact plate 61, a plate placed inside the transverse hollow shell 71 and penetrating the limiting contact plate 61, a horizontal telescopic rod 76 with its end structure fixedly installed on the end face of the transverse sewage flow pipe 1, and a helical spring 77 that generates outward elastic pressure on the horizontal telescopic rod 76, causing the limiting contact plate 61 to press against the end face of the transverse sewage flow pipe 1 with this pressure. Debris accumulating between the plunger structure 62 and the helical impeller 85 will increase in quantity under the continuous output action of the helical impeller 85. The increased debris will generate an outward thrust on the plunger structure 62. At this time, the horizontal telescopic rod 76 extends relative to the transverse hollow shell 71, while the helical spring 77 continues to be compressed. The elastic force generated by the helical spring 77 acts on the debris between the plunger structure 62 and the helical impeller 85, causing the debris to squeeze against each other. Therefore, there are no gaps between the debris, thus preventing sewage from leaking outward along the gaps in the debris. When the discharged debris reaches a certain level, a wooden stick can be used to apply a longitudinal force downward to the accumulated debris in the transverse part, so that the debris can be removed. Under its own elastic pressure, the helical spring 77 can also be reset in time, thus ensuring that sewage discharge and debris removal can be carried out simultaneously.

[0038] For details regarding the specific structure of the elastic telescopic pressure-applying structure 7, please refer to [link / reference]. Figure 5 The device includes a transverse hollow outer shell 71. One end face of the transverse hollow outer shell 71 is provided with an annular abutment plate 72, which is integrally formed with the transverse hollow outer shell 71 and can abut against the end face of a limiting abutment plate 61. The interior of the transverse hollow outer shell 71 is provided with a transverse component movable cavity 73 arranged along the axial direction of the transverse hollow outer shell 71. The middle of the end face of the annular abutment plate 72 is provided with a component telescopic hole 74 connecting the external space of the transverse hollow outer shell 71 and the transverse component movable cavity 73. The transverse hollow outer shell 71 has a component that can move along the axis of the transverse component movable cavity 73 placed inside the transverse component movable cavity 73. The movable plate 75 is equipped with a plate body on its end face that has a through component telescopic hole 74 and a limiting contact plate 61, and a horizontal telescopic rod 76 whose end structure is fixedly installed on the end face of the transverse sewage flow pipe 1. A helical spring 77 is placed around the rod body located inside the transverse component movable cavity 73. The helical spring 77 exerts an outward elastic pressure on the horizontal telescopic rod 76 and causes the limiting contact plate 61 to abut against the end face of the transverse sewage flow pipe 1 with this pressure. In order to have elastic potential energy, the initial length of the helical spring 77 needs to be greater than the transverse length of the transverse component movable cavity 73.

[0039] To ensure timely guidance of filtered impurities and prevent them from clogging the inner wall of the filter cartridge 10, please refer to [link / reference needed]. Figure 1 , Figure 2 and Figure 6 A spiral debris-directing drive structure 8 needs to be set up. Inside, there is a drive motor 83 fixedly installed on one side of the limiting contact plate 61, a horizontal rotating shaft 84 that is connected to the rotor of the drive motor 83 and passes through the rod moving hole 63 and extends into the transverse sewage flow chamber 2, and a spiral impeller 85 set on the periphery of the rod of the horizontal rotating shaft 84. When rotating in a directional manner, it can drive the surrounding debris to generate a spiral impeller 85 in the direction of movement of the plunger structure 62. The drive motor 83 is started and the rotation direction of the rotor of the drive motor 83 is controlled, which drives the spiral impeller 85 to rotate in a directional manner. The rotation of the spiral impeller 85 can make the debris attached to the inner wall of the filter cylinder 10 be transported in a timely manner, so that the debris gathers in the direction of the limiting contact plate 61, thereby realizing the timely guidance function of the filtered debris, thus preventing the debris from clogging the inner wall of the filter cylinder 10.

[0040] For details regarding the specific structure of the spiral debris-oriented drive structure 8, please refer to [link / reference]. Figure 6 The system includes a main fixing plate 81 that can be fixedly installed. A motor fixing base 82 is fixedly installed on one end face of the main fixing plate 81. A drive motor 83 is fixedly installed inside the motor fixing base 82. A horizontal rotating shaft 84 that passes through the main fixing plate 81 and the central rod moving hole 63 is fixedly installed at the rotor end of the drive motor 83. In order to facilitate the flow of sewage, the horizontal rotating shaft 84 needs to be provided with a tip structure 86 to facilitate the flow of liquid at the end facing the water inlet port of the transverse sewage flow cavity 2. The shaft of the horizontal rotating shaft 84 extends into the interior of the transverse sewage flow cavity 2. A spiral impeller 85 that is integrally formed with the horizontal rotating shaft 84 is provided on the shaft located inside the transverse sewage flow cavity 2.

[0041] To achieve the backflow flushing function for removing debris and enhance the unclogging ability of the filter cartridge 10, please refer to... Figure 1 , Figure 2 , Figure 7 and Figure 8The system requires a liquid compensation port 5 and an annular gas film liquid energy storage structure 9. The liquid compensation port 5 is located on the circumferential side of the transverse sewage flow pipe 1 and connects the outside of the transverse sewage flow pipe 1 and the filter cavity 3. The annular gas film liquid energy storage structure 9 is fitted around the circumferential side of the transverse sewage flow pipe 1. Inside, there is an annular gas compression cavity 94 located on the periphery of the transverse sewage flow pipe 1 and in a closed state, and an annular elastic gas film 97 that expands towards the inside of the annular gas compression cavity 94 after being subjected to liquid pressure from the direction of the liquid compensation port 5. When sewage flows in the equipment, since the sewage output requires pressure, this pressure will be transferred into the sewage, and the sewage will affect the annular gas film 97. The elastic gas membrane 97 generates pressure, causing the annular elastic gas membrane 97 to bulge outwards. The gas inside the annular gas compression cavity 94 is compressed, and the annular elastic gas membrane 97 will store energy. Once the external sewage injection stops, the valve of the pipe connected to the longitudinal sewage flow pipe 4 is closed, and an outward thrust is applied to the limit contact plate 61, a gap is created between the sewage discharge pipe of the hydraulic engineering at the drainage port of the transverse sewage flow cavity 2 and the outside. At this time, the sewage is released, the stored energy of the annular elastic gas membrane 97 is released, and the sewage inside the annular elastic gas membrane 97 will backflow and flush the filter cylinder 10 to enhance the unblocking ability of the filter cylinder 10.

[0042] For the specific structure of the annular gas-film liquid energy storage structure 9, please refer to [link / reference]. Figure 7 and Figure 8The system includes an annular hollow sleeve 91, with a central sleeve hole 92 at its center for fitting around the periphery of the transverse sewage flow pipe 1. Annular fixing sleeves 93, integrally formed with and fixedly installed around the periphery of the transverse sewage flow pipe 1, are located at both ends of the annular hollow sleeve 91. An annular gas compression cavity 94 is located inside the annular hollow sleeve 91, surrounding the liquid compensation port 5. A central annular embedding groove 96 is located inside the annular hollow sleeve 91, surrounding the liquid compensation port 5, and the outer circumferential side of the central annular embedding groove 96 communicates with the inner side of the annular gas compression cavity 94. The annular fixing sleeves 93 are located on both sides of the central annular embedding groove 96. The annular sleeve 93 has an outer annular embedding groove 95. An annular sealing ring 98 is embedded inside the outer annular embedding groove 95. The inner annular surface of the annular sealing ring 98 is pressed against the outer circumferential side of the annular hollow sleeve 91. The annular hollow sleeve 91 is filled with gas inside the annular gas compression cavity 94. An annular elastic gas membrane 97 is embedded inside the middle annular embedding groove 96 of the annular hollow sleeve 91. In order to achieve normal flow and energy storage effect of sewage, the annular elastic gas membrane 97 needs to be a ring structure made of elastic rubber material, and the initial elastic strength of the annular elastic gas membrane 97 is sufficient to withstand the strength of sewage flowing without resistance.

[0043] The working principle of this invention is as follows: the water inlet of the horizontal sewage flow pipe 1 is connected to the sewage discharge pipe, the vertical sewage flow pipe 4 is connected to the pipe receiving the filtered sewage, and the main fixing plate 81 is fixedly connected to the bracket for fixing. When the sewage enters from the water inlet of the horizontal sewage flow pipe 1, the impurities will be blocked on the inner annular surface of the filter cylinder 10 under the filtering action of the filter cylinder 10. The filtered sewage can enter the vertical sewage flow pipe 4 through the filter cavity 3 and then flow to the subsequent equipment through the vertical sewage flow pipe 4.

[0044] Start the drive motor 83 and control the rotation direction of the rotor of the drive motor 83 to drive the spiral impeller 85 to rotate in a directional manner. The rotation of the spiral impeller 85 can make the debris attached to the inner wall of the filter cylinder 10 be transported in a timely manner in a directional manner, so that the debris gathers towards the position of the limiting contact plate 61.

[0045] The debris accumulating between the plunger structure 62 and the spiral impeller 85 increases under the continuous output of the spiral impeller 85. The increased debris exerts an outward thrust on the plunger structure 62. At this time, the horizontal telescopic rod 76 extends relative to the transverse hollow shell 71, while the spiral spring 77 is further compressed. The elastic force generated by the spiral spring 77 acts on the debris between the plunger structure 62 and the spiral impeller 85, causing the debris to squeeze against each other. Therefore, there are no gaps between the debris, thus preventing sewage from leaking outward along the gaps in the debris. When the discharged debris reaches a certain level, a wooden stick can be used to apply a longitudinal force downward to the accumulated debris in the transverse part, so that the debris can be removed. Under the action of its own elastic pressure, the spiral spring 77 can be reset in time, thus ensuring that sewage discharge and debris removal can be carried out simultaneously.

[0046] Although embodiments of the invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A sewage discharge pipe for hydraulic engineering, comprising a transverse sewage flow pipe (1) with a transverse sewage flow cavity (2) in the center, a filtering cavity (3) arranged at the periphery of the transverse sewage flow cavity (2), a longitudinal sewage flow pipe (4) arranged at the circumferential side of the transverse sewage flow pipe (1) and communicating with the filtering cavity (3), and a filtering cylinder (10) installed at the intersection of the filtering cavity (3) and the transverse sewage flow cavity (2), characterized in that: It also includes, The plate-type blocking driven structure (6) is provided with a plunger structure (62) inserted into the drainage port of the transverse sewage flow chamber (2) and the sewage discharge pipe for water conservancy projects, a limiting contact plate (61) integrally set at one end of the plunger structure (62) and able to abut against the end of the transverse sewage flow pipe (1), and a central rod moving hole (63) set at the center of the limiting contact plate (61) and the plunger structure (62); Three elastic telescopic pressure structures (7) are provided inside, including a transverse hollow shell (71) fixedly installed on the end face of the limiting contact plate (61), a plate placed inside the transverse hollow shell (71) and passing through the limiting contact plate (61), a horizontal telescopic rod (76) with its end structure fixedly installed on the end face of the transverse sewage flow pipe (1), and a helical spring (77) that generates outward elastic pressure on the horizontal telescopic rod (76) and causes the limiting contact plate (61) to abut against the end face of the transverse sewage flow pipe (1) with this pressure. And a spiral debris directional drive structure (8), which is provided with a drive motor (83) fixedly installed on one side of the limit contact plate (61), a horizontal rotating shaft (84) that is connected to the rotor of the drive motor (83) and passes through the rod moving hole (63) and extends into the transverse sewage flow chamber (2), and a spiral impeller (85) that is provided on the periphery of the rod of the horizontal rotating shaft (84) and can drive the surrounding debris to generate a spiral impeller (85) that moves toward the plunger structure (62) when rotating in a directional manner.

2. A sewage discharge pipe for water conservancy projects according to claim 1, characterized in that: The plate-type blocking driven structure (6) includes a limiting contact plate (61) with one end face abutting against the end face of the transverse sewage flow pipe (1). The limiting contact plate (61) has a plunger structure (62) integral with the limiting contact plate (61) on the end face facing the drainage port of the transverse sewage flow chamber (2). The plunger structure (62) is inserted into the drainage port of the transverse sewage flow chamber (2). The plate body of the limiting contact plate (61) has a side rod moving hole (64) connecting the two ends of the limiting contact plate (61) near its circumference. The center of the limiting contact plate (61) has a center rod moving hole connecting the two ends of the limiting contact plate (61). 63) The plunger structure (62) has an inner annular embedding groove (65) on the circumferential side of the moving hole (63) of the central rod body, and an outer annular embedding groove (66) on the outer circumferential side of the plunger structure (62). An inner annular sealing ring (67) is embedded in the inner annular embedding groove (65) of the plunger structure (62), and an outer annular sealing ring (68) is embedded in the outer annular embedding groove (66). The structural radius of the outer circumferential side of the plunger structure (62) matches the diameter of the transverse sewage flow cavity (2), and the structural radius of the outer circumferential surface of the limiting contact plate (61) is consistent with the end structural radius of the transverse sewage flow cavity (2).

3. A sewage discharge pipe for water conservancy projects according to claim 2, characterized in that: The plunger structure (62) has a chamfered structure (69) at the annular corner that extends into the transverse sewage flow chamber (2).

4. A sewage discharge pipe for water conservancy projects according to claim 3, characterized in that: The elastic telescopic pressure structure (7) includes a transverse hollow shell (71). One end face of the transverse hollow shell (71) is provided with an annular abutment plate (72) that is integral with the transverse hollow shell (71) and can abut against the end face of the limiting abutment plate (61). The interior of the transverse hollow shell (71) is provided with a transverse component movable cavity (73) arranged along the axial direction of the transverse hollow shell (71). The end face of the annular abutment plate (72) is provided with a component telescopic hole (74) that connects the external space of the transverse hollow shell (71) and the transverse component movable cavity (73). The transverse hollow shell (71) is located in the transverse... An movable plate (75) that can move axially along the movable cavity (73) of the component is placed inside the movable cavity (73) of the component. The end face of the movable plate (75) is equipped with a plate body that passes through the component telescopic hole (74) and the limiting contact plate (61), and the end structure is fixedly installed on the end face of the transverse sewage flow pipe (1). The horizontal telescopic rod (76) is surrounded by a helical spring (77) that generates outward elastic pressure on the horizontal telescopic rod (76) and causes the limiting contact plate (61) to abut against the end face of the transverse sewage flow pipe (1) with this pressure.

5. A sewage discharge pipe for water conservancy projects according to claim 4, characterized in that: The initial length of the helical spring (77) is greater than the lateral length of the transverse component movable cavity (73).

6. A sewage discharge pipe for water conservancy projects according to claim 5, characterized in that: The spiral debris directional drive structure (8) includes a main fixing plate (81) that can be fixedly installed. A motor fixing base (82) is fixedly installed on one end face of the main fixing plate (81). A drive motor (83) is fixedly installed inside the motor fixing base (82). A horizontal rotating shaft (84) that passes through the main fixing plate (81) and the central rod moving hole (63) is fixedly installed at the rotor end of the drive motor (83). The shaft of the horizontal rotating shaft (84) extends into the interior of the transverse sewage flow chamber (2). A spiral impeller (85) that is integral with the horizontal rotating shaft (84) is provided on the shaft located inside the transverse sewage flow chamber (2).

7. A sewage discharge pipe for water conservancy projects according to claim 6, characterized in that: The horizontal rotating shaft (84) is provided with a pointed structure (86) at the end of the hydraulic engineering facing the inlet port of the transverse sewage flow chamber (2) to facilitate liquid flow.

8. A sewage discharge pipe for water conservancy projects according to any one of claims 1-7, characterized in that: It also includes a liquid compensation port (5) and an annular gas film liquid energy storage structure (9). The liquid compensation port (5) is located on the circumferential side of the transverse sewage flow pipe (1) and connects the outside of the transverse sewage flow pipe (1) and the filter cavity (3). The annular gas film liquid energy storage structure (9) is placed on the outer periphery of the circumferential side of the transverse sewage flow pipe (1). Inside it is an annular gas compression cavity (94) located on the periphery of the transverse sewage flow pipe (1) and in a closed state, and an annular elastic gas film (97) that expands towards the inside of the annular gas compression cavity (94) after being subjected to liquid pressure from the direction of the liquid compensation port (5).

9. A sewage discharge pipe for water conservancy projects according to claim 8, characterized in that: The annular air-film liquid energy storage structure (9) includes an annular hollow sleeve (91). The annular hollow sleeve (91) has a central sleeve hole (92) at its center, which can be fitted around the periphery of the transverse sewage flow pipe (1). Both ends of the annular hollow sleeve (91) are provided with annular fixing sleeves (93) that are integral with the annular hollow sleeve (91) and fixedly installed around the periphery of the transverse sewage flow pipe (1). The annular hollow sleeve (91) has an annular gas compression cavity (94) located around the periphery of the liquid compensation port (5). The annular hollow sleeve (91) also has a central annular embedding groove (96) located around the periphery of the liquid compensation port (5). The central annular embedding groove (96)... The outer circumferential side is connected to the inner side of the annular gas compression cavity (94). The annular fixed sleeve (93) is provided with outer annular embedding grooves (95) on both sides of the central annular embedding groove (96). The annular fixed sleeve (93) is embedded with an annular sealing ring (98) inside the outer annular embedding groove (95). The inner annular surface of the annular sealing ring (98) is pressed against the outer circumferential side of the annular hollow sleeve (91). The annular hollow sleeve (91) is filled with gas inside the annular gas compression cavity (94). The annular hollow sleeve (91) is embedded with an annular elastic gas film (97) inside the central annular embedding groove (96).

10. A sewage discharge pipe for water conservancy projects according to claim 9, characterized in that: The annular elastic air membrane (97) is an annular structure made of elastic rubber material, and the initial elastic strength of the annular elastic air membrane (97) is sufficient to withstand the strength of sewage flowing without resistance.

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