Flood prevention emergency siphon

Abstract

The utility model relates to a flood prevention emergency siphon, and belongs to the technical field of water conservancy projects. The emergency siphon comprises an upstream slope section, a middle control section and a downstream slope section, the length of the downstream slope section is larger than that of the upstream slope section, the upstream slope section comprises at least two communicated first PE pipes, and the downstream slope section comprises at least three second PE pipes. The middle control section comprises a third PE pipe and connecting hoses arranged at the two ends of the third PE pipe, and connection between the third PE pipe and the first PE pipe and connection between the third PE pipe and the second PE pipe are achieved through the connecting hoses. The siphon pipeline has the effects of improving quick assembly of the siphon pipeline and adapting to different topographic changes.

Description

TECHNICAL FIELD

[0001] The application relates to the technical field of water conservancy projects, in particular to an emergency siphon pipe for flood prevention. BACKGROUND

[0002] Mountain ponds play an important role in agricultural irrigation and food production in mountainous areas. However, most of the mountain ponds in China were built a long time ago and have been neglected for many years, resulting in serious siltation, insufficient water storage and drainage capacity, and reduced resistance to drought risk.

[0003] When the water release facilities of a water conservancy mountain pond are damaged, an emergency siphon pipe is needed for emergency drainage. The traditional pipe needs to be welded on site, and a concrete pier needs to be set, which is inconvenient to install and connect, time-consuming and labor-intensive, and has poor timeliness. The construction of emergency rescue generally has the characteristics of strong timeliness, high quality and safety requirements, and needs to be modularized and quickly assembled, adapt to terrain changes, and improve work efficiency. CONTENT OF THE UTILITY MODEL

[0004] In order to improve the quick assembly of the siphon pipe and adapt to different terrain changes, the application provides an emergency siphon pipe for flood prevention.

[0005] The application provides an emergency siphon pipe for flood prevention, which adopts the following technical scheme:

[0006] The emergency siphon pipe for flood prevention comprises an upstream slope section, an intermediate control section and a downstream slope section, the length of the downstream slope section is greater than that of the upstream slope section, the upstream slope section comprises at least two connected first PE pipes, the downstream slope section comprises at least three second PE pipes, the intermediate control section comprises a third PE pipe and connecting hoses arranged at both ends of the third PE pipe, and the third PE pipe is connected with the first PE pipes and the second PE pipes through the connecting hoses.

[0007] By adopting the above technical scheme, the siphon pipe is divided into the upstream slope section, the intermediate control section and the downstream slope section, the upstream slope section is inserted into the area needing drainage, the water flow is drained through the intermediate control section and the downstream slope section, and the upstream slope section and the intermediate control section or the downstream slope section and the intermediate control section are connected through the connecting hoses. Compared with the fixing by using a bend flange, the siphon pipe has a deformation function at the connection between adjacent slope sections, so that the siphon pipe can adapt to different inclined angles of the terrain and improve the adaptability.

[0008] Optionally, the intermediate control section is provided with a first ball valve for water injection, a second ball valve for air exhaust, and a vacuum device arranged at the second ball valve and used for detecting the water level of the intermediate control section, and the end of the downstream slope section is provided with a flange butterfly valve.

[0009] By adopting the technical scheme, before drainage, the flange butterfly valve of the downstream slope section is closed, then the first ball valve and the second ball valve are started, when the siphon pipe is full of water and the air is completely discharged, the flange butterfly valve is opened, at this time, water flow is automatically transported under the siphon effect, the water level in the pipeline is detected by the vacuum detector, if the siphon pipeline appears water level reduction due to air leakage, the second ball valve is started to perform vacuumizing, the setting of the valve body makes the water flow transportation of the siphon pipeline simple in structure.

[0010] Optionally, both ends of the third PE pipe are provided with flanges for fixing the connecting hose, and the end of the connecting hose is provided with a flange joint matched with the flange.

[0011] By adopting the technical scheme, the connecting hose and the third PE pipe are fixed through the cooperation of the flange and the flange joint, the connecting structure is simple, and the installation is convenient.

[0012] Optionally, the flange joint is inserted into the inner hole of the connecting hose, and the outer side of the connecting hose is provided with a locking clamp for locking the flange joint.

[0013] By adopting the technical scheme, the inner wall of the connecting hose is abutted against the outer side wall of the flange joint through the locking clamp, the sealing performance of the connecting hose and the flange joint is improved, and the probability of leakage of the siphon pipeline is reduced.

[0014] Optionally, a flange gasket is arranged between the flange joint and the flange.

[0015] By adopting the technical scheme, the gap between the flange joint and the flange is filled through the flange gasket, and the leakage of gas and fluid in the siphon pipe is reduced.

[0016] Optionally, both ends of the first PE pipe and the second PE pipe are provided with the flange, and adjacent first PE pipes are connected through the flange, and adjacent second PE pipes are connected through the flange.

[0017] By adopting the technical scheme, the connection mode of adjacent first PE pipes and second PE pipes is disclosed, and the connection mode of two flanges is adopted, which has the effects of simple structure and high connection stability.

[0018] Optionally, a positioning assembly for butt joint of the flange and the flange joint is further arranged on the upstream slope section, the intermediate control section and the downstream slope section.

[0019] By adopting the technical scheme, the butt joint and fixation of the flange and the flange joint are facilitated through the positioning assembly, and the assembly efficiency of the siphon pipe is improved.

[0020] Optionally, the positioning assembly comprises a positioning arc block arranged on the flange plate and a positioning arc groove arranged on the flange joint, the positioning arc block and the positioning arc groove are inserted and matched, and the positioning arc groove is located at the outer edge of the through hole on the end face of the flange joint.

[0021] By adopting the technical scheme, the structure of the positioning assembly is disclosed, the positioning of the flange plate and the flange joint is realized through the insertion and matching of the positioning arc block and the positioning arc groove, after positioning, the through holes of the flange plate and the flange joint are one-to-one corresponding, and the final locking and fixing of the assembly personnel is facilitated through the bolt.

[0022] Optionally, the positioning arc block is slidably arranged on the flange plate, the flange plate is provided with a sliding through slot penetrating through the two side end faces and arranged for the positioning arc block, and the depth of the positioning arc groove is less than the thickness of the positioning arc block, when the positioning arc block is inserted into the positioning arc groove, the positioning arc block is located in the sliding through slot and the positioning arc groove at the same time.

[0023] By adopting the technical scheme, another form of the positioning arc block is disclosed, the positioning arc block is slidably arranged on the flange plate, when the flange plate and the flange joint are butt-jointed, the positioning arc block is slid and pushed to the positioning arc groove, so that the positioning arc block is arranged in the positioning arc groove and the sliding through slot at the same time, and the same positioning effect is achieved, when the flange plate and the flange joint are finally fixed, the positioning arc block can be removed for another group of fixing, compared with arranging the positioning arc block on each flange plate, the cost is reduced, and the positioning is facilitated.

[0024] Optionally, the side wall of the positioning arc block is provided with two groups of elastic plunger pieces along the siphon pipe axis direction, the inner wall of the sliding through slot is provided with a first locking hole matched with the two groups of elastic plunger pieces, and the inner wall of the positioning arc groove is provided with a second locking hole matched with one group of elastic plunger pieces.

[0025] By adopting the technical scheme, the positioning of the positioning arc block in the sliding through slot is realized through the matching of the first locking hole and the elastic plunger piece, and the probability of falling of the positioning arc block from the flange plate is reduced, when the positioning arc block is inserted into the positioning arc groove, the two groups of elastic plunger pieces are matched with the first locking hole and the second locking hole respectively, and the fixing of the positioning arc block is realized.

[0026] In summary, the present application has at least one of the following beneficial technical effects:

[0027] 1. The siphon pipe of the present application comprises an upstream slope section, a middle control section and a downstream slope section, the connection of the upstream slope section and the middle control section or the downstream slope section and the middle control section is realized through the connecting hose, the siphon pipe has a deformation function at the connection of adjacent slope sections, the siphon pipe can adapt to different inclination angles of the terrain, the overall structure is simple, and assembly is convenient.

[0028] 2. The vacuum device is arranged to monitor the water level in the siphon pipe in a timely manner, and ensure the vacuum degree in the siphon pipe.

[0029] 3. The positioning assembly is arranged to facilitate the butt joint of the flange joint and the flange plate, and improve the assembly efficiency. BRIEF DESCRIPTION OF DRAWINGS

[0030] Figure 1 is a schematic diagram of the overall structure of example 1.

[0031] Figure 2 is a schematic diagram of the upstream slope section of example 1.

[0032] Figure 3 is a schematic diagram of the downstream slope section of example 1.

[0033] Figure 4 is a schematic diagram of the intermediate control section of example 1.

[0034] Figure 5 is an exploded schematic diagram of the positioning assembly of example 1.

[0035] Figure 6 is an exploded schematic diagram of the flange plate, flange joint and positioning arc block of example 2.

[0036] BRIEF DESCRIPTION OF DRAWINGS 1. Upstream slope section; 11. First PE pipe; 2. Intermediate control section; 21. Third PE pipe; 22. Connection hose; 23. First ball valve; 24. Second ball valve; 25. Vacuum device; 26. Flange plate; 261. Positioning arc block; 262. Sliding through slot; 2621. First locking hole; 263. Elastic plunger; 27. Flange joint; 271. Positioning arc groove; 2711. Second locking hole; 28. Locking clamp; 29. Flange gasket; 3. Downstream slope section; 31. Second PE pipe; 32. Flange butterfly valve. DETAILED DESCRIPTION

[0037] The following will be described in detail in combination with the accompanying drawings. Figures 1-6 The application will be further described in detail.

[0038] The embodiments of the application disclose a flood-prevention emergency siphon pipe.

[0039] Referring to Figure 1 A flood-prevention emergency siphon pipe comprises an upstream slope section 1, an intermediate control section 2 and a downstream slope section 3.

[0040] Referring to Figure 2 and Figure 3The upstream slope section 1 includes two first PE pipes 11 connected with each other, and the length of the first PE pipe 11 is 6 meters in the embodiment, which is inserted into the area requiring drainage. The downstream slope section 3 includes at least three second PE pipes 31, and the downstream slope section 3 includes five second PE pipes 31 in the embodiment. The structure of the second PE pipe 31 is consistent with that of the first PE pipe 11, and therefore the overall length of the downstream slope section 3 is greater than that of the upstream slope section 1, and the height of the end is lower than that of the upstream slope section 1.

[0041] In combination Figure 4 The intermediate control section 2 is used to be placed flat on the top surface of the slope body on both sides, and includes a third PE pipe 21 and a connecting hose 22 arranged at both ends of the third PE pipe 21. The length of the third PE pipe 21 is 3 meters, and the top of the third PE pipe 21 is sequentially provided with a first ball valve 23 and a second ball valve 24 along the water flow direction.

[0042] The first ball valve 23 is used to discharge air in the siphon pipe, and a vacuum device 25 for monitoring the water level of the pipe is further arranged on the first ball valve 23. The vacuum device 25 is a full-automatic timing vacuum device 25 in the prior art, which can monitor the water level of the intermediate control section 2 at regular time intervals. When the water level decreases, the vacuum device 25 is started to perform air extraction treatment, so as to ensure the vacuum degree in the siphon pipe. The second ball valve 24 is connected with a water pump for water injection into the siphon pipe. The downstream slope section 3 is provided with a flange butterfly valve 32 at the low end, which is used to control the flow of the downstream slope section 3.

[0043] The flange plate 26 is fixedly arranged at both ends of the third PE pipe 21, and the flange joint 27 for fixing the flange plate 26 is fixedly arranged at both ends of the connecting hose 22. The flange plate 26 is fixed to the third PE pipe 21 by heat melting, the flange joint 27 is inserted into the inner hole of the connecting hose 22, and the outer side of the connecting hose 22 is provided with a locking clamp 28 for fixing the flange joint 27.

[0044] The end of the flange plate 26 and the flange joint 27 is provided with a through hole penetrating through the end face, and the through holes are circumferentially arranged along the axis of the flange plate 26 or the flange joint 27. When the flange plate 26 and the flange joint 27 are connected, the through holes of the flange plate 26 and the flange joint 27 are corresponded one by one, and then the flange plate 26 and the flange joint 27 are fixed by bolts. In order to reduce the probability of leakage at the connection between the flange plate 26 and the flange joint 27, a flange gasket 29 is further arranged between the flange plate 26 and the flange joint 27. The flange gasket 29 is a rubber gasket, and the flange gasket 29 can be a complete annular gasket or two half-arc gaskets spliced together.

[0045] The flange plate 26 is also arranged at both ends of the first PE pipe 11 and the second PE pipe 31 by heat melting, and the adjacent PE pipes are fixedly connected by the flange. The fixing mode of the first PE pipe 11, the second PE pipe 31 and the connecting hose 22 is consistent with that of the third PE pipe 21 and the connecting hose 22.

[0046] Referring to Figure 5 , in order to facilitate the assembly and fixing efficiency of the PE pipe and the connecting hose 22, the application also comprises a positioning assembly. The positioning assembly comprises a positioning arc block 261 arranged on the flange plate 26 and a positioning arc groove 271 arranged on the flange joint 27. The positioning arc block 261 is fixed on the end face of the flange plate 26 by welding or bolts and the like. The flange plate 26 is symmetrically provided with two positioning arc blocks 261 along the central axis, and in order to ensure the sealing, the positioning arc blocks 261 are located on the outer edge of the through hole on the end face of the flange plate 26. The positioning arc groove 271 is located on the end face of the flange joint 27 facing the flange plate 26. The positioning arc groove 271 and the positioning arc block 261 are inserted and matched to realize the positioning of the flange plate 26 and the flange joint 27, reduce the operation of rotating the slope section to align the through holes with each other, and improve the overall installation efficiency.

[0047] The implementation principle of the flood prevention emergency siphon pipe in the embodiment is as follows: the siphon pipe is placed on the spillway, the end of the upstream slope section 1 is inserted into the area to be drained, and the end of the downstream slope section 3 is located below the area to be drained; first, the flange butterfly valve 32 is closed, the first ball valve 23 and the second ball valve 24 are started, water is injected into the siphon pipe, and air in the pipeline is discharged; after the pipeline is filled with water, the flange butterfly valve 32 is opened to start siphon drainage, and the water level in the pipeline is monitored by the vacuum device 25 at regular time intervals.

[0048] Embodiment 2: The structure of the positioning assembly in this embodiment is different from that in Embodiment 1, and the remaining structures are the same as those in Embodiment 1.

[0049] Referring to Figure 6 , the positioning assembly comprises a positioning arc block 261 and a positioning arc groove 271. The positioning arc block 261 is slidingly installed on the flange plate 26, and the flange plate 26 has a sliding through slot 262 for installing the positioning arc block 261, which is located on the outer edge of the through hole on the end face of the flange plate 26.

[0050] The outer side wall of the positioning arc block 261 is provided with two groups of elastic plunger pieces 263 along the siphon pipe axis direction. The elastic plunger piece 263 comprises a plunger shell, a plunger spring and a plunger head. The plunger shell is screwed to the positioning arc block 261, and the two ends of the plunger spring are fixed to the bottom wall of the plunger shell and the plunger head respectively.

[0051] The flange plate 26 is provided with a first locking hole 2621 on the inner wall of the sliding through slot 262, which cooperates with the plunger head. The first locking hole 2621 also has two groups along the pipeline axis direction, and the two groups of elastic plunger pieces 263 and the two groups of first locking holes 2621 are matched before the flange plate 26 and the flange joint 27 are butted.

[0052] The positioning arc groove 271 is located on the side of the flange joint 27 facing the flange plate 26, and the depth of the positioning arc groove 271 is less than the axial thickness of the positioning arc block 261. When the positioning arc block 261 is inserted into the positioning arc groove 271, the positioning arc block 261 can be arranged in the positioning arc groove 271 and the sliding through groove 262 at the same time. The flange joint 27 is provided with a second locking hole 2711 on the inner wall of the positioning arc groove 271, which is fixedly matched with the elastic plunger piece 263. When the two groups of elastic plunger pieces 263 of the positioning arc block 261 are matched with the first locking hole 2621 and the second locking hole 2711 respectively, the positioning butt joint of the flange plate 26 and the flange joint 27 is realized.

[0053] The above are preferred embodiments of the present application, and are not intended to limit the protection scope of the present application. Therefore, any equivalent changes made on the basis of the structure, shape and principle of the present application should be covered within the protection scope of the present application.

Claims

1. A flood-prevention emergency siphon, comprising an upstream slope section (1), an intermediate control section (2) and a downstream slope section (3), the downstream slope section (3) being longer than the upstream slope section (1), characterized in that, The upstream slope section (1) comprises at least two first PE pipes (11) in communication, the downstream slope section (3) comprises at least three second PE pipes (31), and the intermediate control section (2) comprises a third PE pipe (21) and a connecting hose (22) arranged at both ends of the third PE pipe (21), so as to realize the connection of the third PE pipe (21) and the first PE pipe (11) and the connection of the third PE pipe (21) and the second PE pipe (31) through the connecting hose (22).

2. The flood-prevention emergency siphon according to claim 1, wherein, A first ball valve (23) for water injection, a second ball valve (24) for air exhaust, and a vacuum device (25) arranged at the second ball valve (24) and used for detecting the water level of the intermediate control section (2) are arranged on the intermediate control section (2), and a flange butterfly valve (32) is arranged at the end of the downstream slope section (3).

3. The flood-prevention emergency siphon according to claim 1, wherein, Flanges (26) for fixing the connecting hose (22) are arranged at both ends of the third PE pipe (21) by hot melting, and flange joints (27) for cooperating with the flanges (26) are arranged at the ends of the connecting hose (22).

4. The flood-prevention emergency siphon according to claim 3, wherein, The flange joints (27) are inserted into the inner holes of the connecting hose (22), and locking hoops (28) are arranged outside the connecting hose (22) to lock the flange joints (27).

5. The flood emergency siphon according to claim 3, wherein, Flange gaskets (29) are arranged between the flange joints (27) and the flanges (26).

6. The flood emergency siphon according to claim 3, wherein, The flanges (26) are arranged at both ends of the first PE pipe (11) and the second PE pipe (31), and adjacent first PE pipes (11) are connected through the flanges (26), and adjacent second PE pipes (31) are connected through the flanges (26).

7. The flood emergency siphon according to claim 3, wherein, Positioning assemblies for the butt joint of the flanges (26) and the flange joints (27) are further arranged on the upstream slope section (1), the intermediate control section (2) and the downstream slope section (3).

8. The flood emergency siphon according to claim 7, wherein, The positioning assemblies comprise positioning arc blocks (261) arranged on the flanges (26) and positioning arc grooves (271) arranged on the flange joints (27), the positioning arc blocks (261) and the positioning arc grooves (271) are inserted and matched, and the positioning arc grooves (271) are located outside the end face through holes of the flange joints (27).

9. The flood emergency siphon according to claim 8, wherein, The positioning arc blocks (261) are slidingly installed on the flanges (26), the flanges (26) are provided with sliding through grooves (262) penetrating through both side end faces and used for installing the positioning arc blocks (261), and the depth of the positioning arc grooves (271) is less than the thickness of the positioning arc blocks (261), so that when the positioning arc blocks (261) are inserted into the positioning arc grooves (271), the positioning arc blocks (261) are located in the sliding through grooves (262) and the positioning arc grooves (271) at the same time.

10. The flood emergency siphon according to claim 9, wherein, The side wall of the positioning arc block (261) is provided with two groups of elastic plunger pieces (263) in the direction of the siphon pipe axis, the inner wall of the sliding through slot (262) is provided with first locking holes (2621) matched with the two groups of elastic plunger pieces (263), and the inner wall of the positioning arc slot (271) is provided with second locking holes (2711) matched with the elastic plunger pieces (263).

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