Drainage pipeline inverted siphon device capable of automatically dredging and discharging mud

Abstract

The utility model provides a drainage pipeline inverted siphon device capable of automatically dredging and discharging sludge. The drainage pipeline inverted siphon device comprises a water inlet well, a water outlet well, a water inlet well sludge hopper, a water outlet well sludge hopper, an inverted siphon pipe, a water inlet well lifting device, a water outlet well lifting device, an air compression device, a sludge discharging air pipe, an air flushing pipe, an inclined tee joint and a spray head. The top of the water inlet well sludge hopper is communicated with the top of the water outlet well sludge hopper through an inverted siphon. The device has the following advantages: 1, sludge deposited at the bottom of the sludge bucket is lifted to the ground by using an air stripping method and can be pulled away by a sewage suction truck; 2, sludge deposited at the bottom of the inverted siphon is flushed into a sludge hopper of a water outlet well through compressed air, and then the sludge is discharged out of the system through an air stripping method; 3, the same set of air compression device can be adopted as an air source for desilting and sludge discharging, and the energy-saving effect is achieved; the sludge monitor in the water outlet well is used for monitoring the sludge thickness, automatic dredging and sludge discharging are started according to a signal, time and labor are saved, and management is convenient.

Description

TECHNICAL FIELD

[0001] The utility model relates to municipal engineering facility technical field, concretely relates to a drainage pipeline inverted siphon device that can automatic desilting and mud discharge. BACKGROUND

[0002] When the drainage pipe meets the obstacle such as river, mountain spring, depression or underground structure, cannot be buried according to the original slope, and sets up water inlet well and water outlet well respectively at both ends of the obstacle, and the drainage pipeline passes through the obstacle from below in the concave mode, and this kind of pipeline is called inverted siphon pipe. Because the desilting of inverted siphon pipe is much more difficult than general pipeline, therefore must be improved as much as possible when designing, and various measures are taken to prevent the siltation of sewage in inverted siphon pipe, such as, the flow velocity in the pipe should be greater than 0.9 m / s, and should be greater than the flow velocity in the water inlet pipe when designing, and the minimum pipe diameter of inverted siphon pipe should be 200 mm, and the preceding inspection well of inverted siphon pipe water inlet well should be provided with sludge tank.

[0003] However, under the actual operation condition, the siltation of inverted siphon pipe is inevitable, and the common desilting mode at present is to flush the inverted siphon pipe by using high pressure water, and this mode is time-consuming and laborious, and the desilting effect is not good. UTILITY MODEL CONTENT

[0004] In view of the defects in the prior art, the technical problem to be solved by the utility model is to provide a drainage pipeline inverted siphon device that can automatic desilting and mud discharge, which can automatically desilt and discharge mud according to the deposition thickness of sludge, flushes the sludge deposited at the bottom of inverted siphon pipe into sludge hopper by using compressed air, and discharges the sludge deposited at the bottom of sludge hopper outside the system by using air stripping method.

[0005] The technical scheme adopted by the utility model is as follows:

[0006] The utility model provides a drainage pipeline inverted siphon device that can automatic desilting and mud discharge, including water inlet well (1), water outlet well (2), water inlet well sludge hopper (3A), water outlet well sludge hopper (3B), inverted siphon pipe (6), water inlet well lifting device, water outlet well lifting device, air compression device (11), sludge discharge air pipe (13), air flushing pipe (15), inclined tee (16) and spray head (17).

[0007] The bottom of water inlet well (1) has water inlet well sludge hopper (3A), the bottom of water outlet well (2) has water outlet well sludge hopper (3B), and the top of water inlet well sludge hopper (3A) is communicated with the top of water outlet well sludge hopper (3B) through inverted siphon pipe (6).

[0008] Water inlet well (1) and water outlet well (2) are respectively provided with water inlet well lifting device and water outlet well lifting device.

[0009] The air compression device (11) is arranged inside the water inlet well (1), the first gas outlet of the air compression device (11) is communicated with the air inlet of the sludge discharge air pipe (13), the air outlet of the sludge discharge air pipe (13) is communicated with the bottom air inlet of the water inlet well lifting device;

[0010] The second gas outlet of the air compression device (11) is communicated with the air inlet of the air flushing pipe (15), the air flushing pipe (15) extends downwardly in the water inlet well (1) to the bottom of the water inlet of the inverted siphon (6), then is laid in the same slope and same direction with the inverted siphon (6), and then extends to the water outlet well sludge hopper (3B) at the bottom of the water outlet well (2) and is communicated with the bottom air inlet of the water outlet well lifting device;

[0011] The air flushing pipe (15) along the bottom of the inverted siphon (6) is provided with the inclined tee joint (16) at intervals, the first pipe opening and the second pipe opening of the inclined tee joint (16) are communicated with the air flushing pipe (15), the third pipe opening of the inclined tee joint (16) extends into the inverted siphon (6), and the shower head (17) is arranged at the third pipe opening of the inclined tee joint (16).

[0012] Preferably, the water inlet well (1) is communicated with the water inlet pipe (5) at the side far away from the inverted siphon (6), and the water outlet well (2) is communicated with the water outlet pipe (7) at the side far away from the inverted siphon (6).

[0013] Preferably, the water inlet well lifting device and the water outlet well lifting device have the same structure and each include a lifting pipe (8), a horn mouth (9) and a horn mouth support (10).

[0014] The horn mouth support (10) is fixed to the center of the bottom of the sludge hopper, the top of the horn mouth support (10) is connected with the horn mouth (9), the top of the horn mouth (9) is connected with the bottom of the lifting pipe (8), the top of the lifting pipe (8) extends out of the well mouth of the corresponding water inlet well (1) or water outlet well (2) and penetrates the ground, and extends to one side of the water inlet well (1) or water outlet well (2) through an elbow.

[0015] Preferably, the bottom of the sludge discharge air pipe (13) extends downwardly through an elbow to the bottom of the water inlet well sludge hopper (3A), then extends upwardly through an elbow and deeply into the horn mouth (9) of the water inlet well lifting device.

[0016] The air flushing pipe (15) extends to the water outlet well sludge hopper (3B), then extends downwardly along the side wall of the water outlet well sludge hopper (3B) to the bottom of the water outlet well sludge hopper (3B), then extends upwardly through an elbow and deeply into the horn mouth (9) at the bottom of the water outlet well sludge hopper (3B).

[0017] Preferably, the sludge discharge air pipe (13) and the air flushing pipe (15) are both deep into the corresponding bell mouth (9) by 100-200mm.

[0018] Preferably, the first air outlet of the air compressor (11) is equipped with a sludge discharge valve (12), and the second air outlet of the air compressor (11) is equipped with an air flushing valve (14).

[0019] Preferably, the sludge discharge valve (12) and the air flushing valve (14) are both electric valves.

[0020] Preferably, a sludge monitor (18) is arranged in the water outlet well sludge hopper (3B).

[0021] Preferably, the angle of the spray head (17) is 30-45°.

[0022] Preferably, the water inlet well (1) and the top of the water outlet well (2) are both equipped with a well cover (101).

[0023] A maintenance step (102) is arranged in the water inlet well (1) from the bottom of the well cover (101) to the top of the water inlet well sludge hopper (3A) at a certain distance.

[0024] A maintenance step (102) is arranged in the water outlet well (2) from the bottom of the well cover (101) to the top of the water outlet well sludge hopper (3B) at a certain distance.

[0025] A maintenance platform (4) is arranged in the middle of the water inlet well (1) and the water outlet well (2), the maintenance platform (4) is provided with a maintenance hole (401) and a guardrail (402) on one side.

[0026] The drainage pipe inverted siphon device with automatic dredging and sludge discharge has the following advantages:

[0027] 1. The sludge deposited at the bottom of the sludge hopper is lifted to the ground by air stripping method and can be pulled away by a sewage suction vehicle.

[0028] 2. The sludge deposited at the bottom of the inverted siphon pipe is flushed into the sludge hopper of the water outlet well by compressed air, and then is discharged out of the system by air stripping method.

[0029] 3. The air source for dredging and sludge discharge can adopt the same set of air compressor, which has energy-saving effect.

[0030] 4. The sludge monitor in the water outlet well is used to monitor the thickness of the sludge, and the automatic dredging and sludge discharge are started according to the signal, which saves time and labor and is convenient for management. BRIEF DESCRIPTION OF DRAWINGS

[0031] Figure 1 It is the external structure schematic view of the drainage pipeline inverted herringbone device of the utility model.

[0032] Figure 2 It is the water inlet well large sample view of the drainage pipeline inverted herringbone device of the utility model.

[0033] Figure 3 It is the water outlet well large sample view of the drainage pipeline inverted herringbone device of the utility model.

[0034] Figure 4 It is the section view of the drainage pipeline inverted herringbone device of the utility model.

[0035] Figure 5 It is the connection schematic view of air flushing pipe and inverted herringbone pipe of the drainage pipeline inverted herringbone device of the utility model.

[0036] In the drawing: 1, water inlet well, 2, water outlet well, 3A, water inlet well sludge hopper, 3B, water outlet well sludge hopper, 4, maintenance platform, 5, water inlet pipe, 6, inverted herringbone pipe, 7, water outlet pipe, 8, lifting pipe, 9, horn mouth, 10, horn mouth support, 11, air compression device, 12, sludge discharge valve, 13, sludge discharge air pipe, 14, air flushing valve, 15, air flushing pipe, 16, inclined tee, 17, spray head, 18, sludge monitor, 101, well lid, 102, maintenance step, 401, maintenance hole, 402, guardrail. DETAILED DESCRIPTION

[0037] The technical solutions in the embodiments of the utility model will be clearly and completely described below with reference to the drawings in the embodiments of the utility model; obviously, the described embodiments are only part of the embodiments of the utility model, rather than all the embodiments; based on the embodiments in the utility model, all other embodiments obtained by those skilled in the art without creative labor fall within the protection scope of the utility model.

[0038] In the description of the utility model, it needs to be explained that the terms "upper", "lower", "inner", "outer", "top / bottom end" and the like indicate the orientation or positional relationship shown in the drawings, which is only for the convenience of describing the utility model and simplifying the description, and does not indicate or imply that the indicated device or element must have a particular orientation, be constructed and operated in a particular orientation, therefore, it cannot be understood as a limitation on the utility model. In addition, the terms "first", "second" are only for the purpose of description, and cannot be understood as indicating or implying relative importance.

[0039] In the description of the utility model, it is necessary to explain, unless another explicit provision and limitation, the term "installation", "set with", "sleeve set / interface", "connection" and the like should be understood broadly, for example "connection", can be fixed connection, also can be detachable connection, or integrally connected;Can be mechanical connection, also can be electrical connection;Can be directly connected, also can be indirectly connected through intermediate medium, can be the communication inside two elements.For the ordinary skilled in the art, the specific meaning of the above-mentioned terms in the utility model can be understood according to the specific circumstances.

[0040] The drainage pipeline inverted siphon device provided by the utility model has the following advantages:

[0041] The sludge deposited at the bottom of the sludge hopper is lifted to the ground by air-lifting method, and can be pulled away by a sludge suction vehicle;

[0042] The sludge deposited at the bottom of the inverted siphon pipe is flushed into the sludge hopper of the water outlet well by compressed air, and then is discharged out of the system by air-lifting method;

[0043] The air source for sludge dredging and discharging can adopt the same set of air compression device, which has energy-saving effect;

[0044] The sludge thickness is monitored by the sludge monitor in the water outlet well, and the automatic sludge dredging and discharging is started according to the signal, which saves time and labor and is convenient for management.

[0045] As shown in Figures 1-5 The utility model provides a drainage pipeline inverted siphon device capable of automatic sludge dredging and discharging, which comprises a water inlet well 1, a water outlet well 2, a water inlet well sludge hopper 3A, a water outlet well sludge hopper 3B, an inverted siphon pipe 6, a water inlet well lifting device, a water outlet well lifting device, an air compression device 11, a sludge discharge air pipe 13, a gas flushing pipe 15, an inclined tee joint 16 and a spray head 17.

[0046] The bottom of the water inlet well 1 is provided with the water inlet well sludge hopper 3A;The bottom of the water outlet well 2 is provided with the water outlet well sludge hopper 3B;The top of the water inlet well sludge hopper 3A and the top of the water outlet well sludge hopper 3B are communicated through the inverted siphon pipe 6;A sludge monitor 18 is arranged in the water outlet well sludge hopper 3B.

[0047] The water inlet well 1 and the water outlet well 2 are respectively provided with the water inlet well lifting device and the water outlet well lifting device.

[0048] The air compression device 11 is arranged in the water inlet well 1, the first air outlet end of the air compression device 11 is communicated with the air inlet end of the sludge discharge air pipe 13;The first air outlet end of the air compression device 11 is provided with a sludge discharge valve 12;The sludge discharge valve 12 is an electric valve.

[0049] The second air outlet of the air compression device 11 is communicated with the air inlet of the air flushing pipe 15, and the air flushing valve 14 is arranged on the second air outlet of the air compression device 11.

[0050] The air flushing pipe 15 is arranged along the bottom of the inverted siphon 6, and the inclined tee joint 16 is arranged at intervals, the first pipe opening and the second pipe opening of the inclined tee joint 16 are communicated with the air flushing pipe 15, the third pipe opening of the inclined tee joint 16 extends into the inverted siphon 6, and the spray head 17 is arranged on the third pipe opening of the inclined tee joint 16.

[0051] The water inlet well 1 is communicated with the water inlet pipe 5 on the side far away from the inverted siphon 6, and the water outlet well 2 is communicated with the water outlet pipe 7 on the side far away from the inverted siphon 6.

[0052] The water inlet well lifting device and the water outlet well lifting device have the same structure and comprise a lifting pipe 8, a horn mouth 9 and a horn mouth support 10.

[0053] The horn mouth support 10 is fixed to the bottom center of the sludge hopper, the top of the horn mouth support 10 is connected with the horn mouth 9, the top of the horn mouth 9 is connected with the bottom of the lifting pipe 8, the top of the lifting pipe 8 extends out of the well mouth of the corresponding water inlet well 1 or water outlet well 2 and penetrates the ground, and extends to the side of the water inlet well 1 or water outlet well 2 through an elbow.

[0054] The bottom of the sludge discharge air pipe 13 extends downward to the bottom of the water inlet well sludge hopper 3A through an elbow, extends upward and deeply into the horn mouth 9 of the water inlet well lifting device through an elbow, the air flushing pipe 15 extends to the water outlet well sludge hopper 3B, extends downward along the sidewall of the water outlet well sludge hopper 3B to the bottom of the water outlet well sludge hopper 3B, and extends upward and deeply into the horn mouth 9 at the bottom of the water outlet well sludge hopper 3B through an elbow.

[0055] In the utility model, the water inlet well 1 and the water outlet well 2 are both provided with well covers 101 at the top,

[0056] The maintenance steps 102 are arranged at intervals from the bottom of the well cover 101 to the top of the water inlet well sludge hopper 3A in the water inlet well 1,

[0057] The maintenance steps 102 are arranged at intervals from the bottom of the well cover 101 to the top of the water outlet well sludge hopper 3B in the water outlet well 2,

[0058] An inspection platform 4 is set up in the middle of the inlet well 1 and the outlet well 2. The inspection platform 4 has an opening for inspection holes 401 and a guardrail 402 is set up on one side of the inspection platform 4.

[0059] The following is an example:

[0060] like Figures 1-5 As shown, this utility model provides a drainage pipe inverted siphon device that can automatically dredge and discharge sludge, including an inlet well 1, an outlet well 2, an inlet well sludge hopper 3A, an outlet well sludge hopper 3B, a maintenance platform 4, an inlet pipe 5, an inverted siphon pipe 6, and an outlet pipe 7.

[0061] The inlet well 1 is connected to the inlet pipe 5. The bottom of the other side of the inlet well 1 is connected to the outlet well 2 through the inverted siphon 6. The other side of the outlet well 2 is connected to the outlet pipe 7. The top of the inlet well 1 and the outlet well 2 are both equipped with well covers 101. The bottom of the inlet well 1 and the outlet well 2 are each equipped with an inlet well sludge hopper 3A and an outlet well sludge hopper 3B. Inside the inlet well 1 and the outlet well 2, a maintenance step 102 is set at a certain distance from the bottom of the well cover 101 to the top of the sludge hopper. The maintenance platform 4 is set in the middle of the inlet well 1 and the outlet well 2. The maintenance platform 4 has an opening for a maintenance hole 401. A guardrail 402 is set on one side of the maintenance platform 4. A flared bracket 10 is set at the center of the bottom of the sludge hopper 3. The top of the flared bracket 10 is connected to the flared mouth 9. The top of the flared mouth 9 is connected to the lifting pipe 8. The other side of the lifting pipe 8 protrudes from the ground and extends to one side of the inlet well 1 and the outlet well 2 through an elbow.

[0062] An air compressor 11 is installed on the maintenance platform 4 inside the inlet well 1. One side of the air compressor 11 is connected to the sludge discharge valve 12, and the other side of the sludge discharge valve 12 is connected to the sludge discharge air pipe 13. The other side of the sludge discharge air pipe 13 extends downward through an elbow to the bottom of the sludge hopper 3A of the inlet well, and then extends upward through an elbow into the bell mouth 9. The other side of the air compressor 11 is connected to the air flushing valve 14, and the other side of the air flushing valve 14 is connected to the air flushing pipe 15. The air flushing pipe 15 extends downward to the inlet of the inverted siphon 6. At the bottom, it is laid with the same slope and direction as the inverted siphon 6, passing through the sludge hopper 3B at the bottom of the effluent well 2, extending downward along the side wall of the sludge hopper 3B to the bottom of the sludge hopper 3B, and then extending upward through the elbow and into the inside of the bell mouth 9 at the bottom of the effluent well 2. Along the air jet pipe 15 at the bottom of the inverted siphon 6, a slanted tee 16 is set at a certain distance to connect with the bottom of the inverted siphon 6. A nozzle 17 is set at the end of the slanted tee 16, and a sludge monitor 18 is set in the sludge hopper 3B of the effluent well 2.

[0063] The width of maintenance platform 4 is 1m to 2m;

[0064] Both the mud discharge valve 12 and the air flushing valve 14 are electric valves;

[0065] The depth of the air flushing pipe 15 and the inverted siphon 6 is 200-500 mm;

[0066] The depth of the air flushing pipe 15 and the inverted siphon 6 is 200-500 mm;

[0067] The angle of the nozzle 17 is 30-45 degrees;

[0068] In order to facilitate the understanding of the content of the utility model, the implementation process of the utility model is further explained below in combination with the drawings and specific embodiments of the specification.

[0069] The utility model discloses a kind of automatic dredging and mud discharging inverted siphon device of drainage pipeline, sewage is first entered into water inlet well 1 by water inlet pipe 5, and carried impurity particles deposit at the bottom of water inlet well sludge hopper 3A under the action of gravity, and sewage enters inverted siphon 6, then flow to water outlet well 2, impurity particles also deposit at the bottom of water outlet well sludge hopper 3B of water outlet well 2 under the action of gravity, and sewage enters water outlet pipe 7 and then flow to downstream inspection well again.After a period of operation, the bottom of water inlet well sludge hopper 3A, water outlet well sludge hopper 3B and inverted siphon 6 will all have sludge deposition.

[0070] Sludge monitor 18 in water outlet well 2 monitors sludge thickness, when sludge thickness reaches a certain degree, air compression device 11 is started at this time, mud discharge valve 12 is opened, compressed air enters into lifting pipe 8, a large number of small bubbles are generated, these bubbles contact the bottom mud of water inlet well sludge hopper 3A, and will be attached to its surface, form bubble group, due to the action of buoyancy, bubble group rises to ground along lifting pipe 8 and is pulled away by suction vehicle, and the sludge deposited in water inlet well sludge hopper 3A is excluded from the system.Afterwards, air flushing valve 14 is opened, compressed air enters into air flushing pipe 15, then passes through inclined tee joint 16 and nozzle 17, and carries out air flushing dredging to inverted siphon 6, and sludge deposited at the bottom of inverted siphon 6 is flushed to the water outlet well sludge hopper 3B of water outlet well 2, and compressed air is finally also entered into lifting pipe 8 of water outlet well 2, and sludge deposited at the bottom of water outlet well sludge hopper 3B is lifted to ground again by air-lift method, and is discharged from the system. Through well lid 101, inspection step 102, maintenance platform 4, air compression device 11, mud discharge valve 12 and air flushing valve 14 can be conveniently maintained and replaced.

[0071] The above-mentioned is only preferred embodiment of the utility model, and it should be pointed out that, for ordinary skilled person in the art, on the premise of not departing from the principle of the utility model, a number of improvements and refinements can be made, and these improvements and refinements should also be regarded as the protection scope of the utility model.

Claims

1. A drainage pipe inverted siphon device capable of automatically dredging and discharging sludge, characterized in that, It includes an inlet well (1), an outlet well (2), an inlet well sludge hopper (3A), an outlet well sludge hopper (3B), an inverted siphon (6), an inlet well lifting device, an outlet well lifting device, an air compressor device (11), a sludge discharge air pipe (13), an air jet pipe (15), an oblique tee (16), and a nozzle (17); The bottom of the inlet well (1) has the inlet well sludge hopper (3A); the bottom of the outlet well (2) has the outlet well sludge hopper (3B); the top of the inlet well sludge hopper (3A) and the top of the outlet well sludge hopper (3B) are connected by the inverted siphon (6); The inlet well (1) and the outlet well (2) are respectively equipped with the inlet well lifting device and the outlet well lifting device; The air compressor (11) is installed inside the water intake well (1). The first air supply end of the air compressor (11) is connected to the air inlet end of the mud discharge air pipe (13). The exhaust end of the mud discharge air pipe (13) is connected to the bottom air inlet end of the water intake well lifting device. The second air delivery end of the air compressor (11) is connected to the air inlet end of the air flushing pipe (15); the air flushing pipe (15) extends downward in the water inlet well (1) to the bottom of the inlet of the inverted siphon (6), and is then laid with the same slope and direction as the inverted siphon (6), and then extends to the sludge hopper (3B) at the bottom of the water outlet well (2), and is connected to the bottom air inlet end of the water outlet well lifting device; Along the air jet pipe (15) at the bottom of the inverted siphon (6), the oblique tee (16) is set at a certain distance. The first and second ports of the oblique tee (16) are connected to the air jet pipe (15). The third port of the oblique tee (16) extends into the inverted siphon (6), and the nozzle (17) is installed at the third port of the oblique tee (16).

2. The inverted siphon device for an automatic sludge removal and drainage pipe according to claim 1, characterized in that, The inlet well (1) is connected to the inlet pipe (5) on the side away from the inverted siphon (6); the outlet well (2) is connected to the outlet pipe (7) on the side away from the inverted siphon (6).

3. The inverted siphon device for an automatic sludge removal and drainage pipe according to claim 1, characterized in that, The inlet well lifting device and the outlet well lifting device have the same structure, both including a lifting pipe (8), a bell mouth (9) and a bell mouth support (10); The horn-shaped bracket (10) is fixed to the center of the bottom of the sludge hopper; the top of the horn-shaped bracket (10) is connected to the horn (9), and the top of the horn (9) is connected to the bottom of the lifting pipe (8); the top of the lifting pipe (8) extends from the opening of the corresponding water inlet well (1) or water outlet well (2) and protrudes through the ground, extending to one side of the water inlet well (1) or water outlet well (2) through an elbow.

4. A drainage pipe inverted siphon device capable of automatic sludge removal and discharge according to claim 3, characterized in that, The bottom of the sludge discharge air pipe (13) extends downward through an elbow to the bottom of the sludge hopper (3A) of the water inlet well, and then extends upward through an elbow to penetrate into the inside of the bell mouth (9) of the water inlet well lifting device. The air jet pipe (15) extends to the sludge hopper (3B) of the effluent well, then extends downward along the side wall of the sludge hopper (3B) of the effluent well to the bottom of the sludge hopper (3B), and then extends upward through the elbow and into the inside of the flared opening (9) at the bottom of the sludge hopper (3B).

5. A drainage pipe inverted siphon device capable of automatic sludge removal and discharge according to claim 4, characterized in that, The mud discharge air pipe (13) and the air flushing pipe (15) both extend into the corresponding horn mouth (9) to a depth of 100-200 mm.

6. A drainage pipe inverted siphon device capable of automatic sludge removal and discharge according to claim 1, characterized in that, The first air supply end of the air compressor (11) is equipped with a mud discharge valve (12); the second air supply end of the air compressor (11) is equipped with an air flush valve (14).

7. A drainage pipe inverted siphon device capable of automatic sludge removal and discharge according to claim 6, characterized in that, Both the mud discharge valve (12) and the air flush valve (14) are electric valves.

8. A drainage pipe inverted siphon device capable of automatic sludge removal and discharge according to claim 1, characterized in that, A sludge monitor (18) is installed in the sludge hopper (3B) of the effluent well.

9. A drainage pipe inverted siphon device capable of automatic sludge removal and discharge according to claim 1, characterized in that, The angle of the nozzle (17) is 30° to 45°.

10. A drainage pipe inverted siphon device capable of automatic sludge removal and discharge according to claim 1, characterized in that, Both the inlet well (1) and the outlet well (2) are equipped with well covers (101) on top; Maintenance steps (102) are provided at certain intervals inside the water inlet well (1) from the bottom of the well cover (101) to the top of the sludge hopper (3A) of the water inlet well; Maintenance steps (102) are provided at certain intervals inside the outlet well (2), from the bottom of the well cover (101) to the top of the sludge hopper (3B) of the outlet well; A maintenance platform (4) is provided in the middle of the inlet well (1) and the outlet well (2). The maintenance platform (4) has an opening for maintenance holes (401), and a guardrail (402) is provided on one side of the maintenance platform (4).

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