CN209762536U - Energy dissipater for pressure pipeline and sewage inspection well - Google Patents

Abstract

The utility model discloses an energy dissipater and a sewage inspection well for a pressure pipeline, which relate to the technical field of water supply and drainage engineering, wherein the energy dissipater comprises a flow guide device and an energy dissipation groove, the flow guide device comprises a 90-degree elbow and a flow guide pipe, and the top end of the flow guide pipe is connected with one end of the 90-degree elbow; the energy dissipation groove comprises an energy dissipation plate, an overflow weir and a plurality of ribs, the overflow weir is arranged on the energy dissipation plate, two ends of the ribs are respectively connected with the overflow weir and the flow guide pipe, the bottom end of the flow guide pipe faces the energy dissipation plate and a gap exists between the energy dissipation plate, and the area of the energy dissipation plate is larger than the cross-sectional area of the flow guide pipe. The utility model provides an energy dissipater not only can reduce the speed flood peak of pipeline under pressure delivery port, simple structure moreover, and the cost of manufacture has been saved to the preparation convenience.

Description

Energy dissipater for pressure pipeline and sewage inspection well

Technical Field

The utility model relates to a water supply and drainage engineering technical field, concretely relates to energy dissipater for pipeline under pressure.

background

Along with the increasing attention of the country to the environmental protection, the water pollution treatment is gradually expanded, compared with the mature cities of urban drainage pipe networks and sewage treatment systems, most rural areas have no drainage channels and sewage treatment systems, and along with the progress of the environmental protection work at present, the rural sewage collection and treatment project is also in good fire.

The rural sewage in China has obvious characteristics of wide and dispersed distribution, and the dispersed geographical distribution characteristics of villages cause that the sewage is dispersed and difficult to collect. When the pipe network is collected in the design, the construction condition and the economic level of the place are considered, the buried depth of the pipeline cannot be too large, and therefore, the sewage lifting device is common.

According to the current drainage standard requirement, an energy dissipation well needs to be arranged at the position of the inspection well where the pressure pipeline enters the gravity pipeline, and the general concrete structure energy dissipation well is large in size, complex in structure, long in construction period correspondingly, and not beneficial to saving of manufacturing cost and construction period.

SUMMERY OF THE UTILITY MODEL

to the defect that exists among the prior art, the utility model aims to provide a pipeline under pressure export dissipater can reduce pipeline under pressure delivery port department speed flood peak, and this dissipater simple structure, and the cost of manufacture has been saved to the preparation convenience.

In order to achieve the above purpose, the utility model adopts the technical proposal that:

an dissipater for a pressurised pipeline, comprising:

the flow guide device comprises a 90-degree elbow and a flow guide pipe, and the top end of the flow guide pipe is connected with one end of the 90-degree elbow;

The energy dissipation groove comprises an energy dissipation plate, an overflow weir and a plurality of ribs, the overflow weir is arranged on the energy dissipation plate, two ends of the ribs are respectively connected with the overflow weir and the flow guide pipe, the bottom end of the flow guide pipe faces the energy dissipation plate, a gap exists between the bottom end of the flow guide pipe and the energy dissipation plate, and the area of the energy dissipation plate is larger than the cross-sectional area of the flow guide pipe.

On the basis of the technical scheme, the fins are uniformly arranged along the circumferential direction of the flow guide pipe.

On the basis of the technical scheme, the area covered by the horizontal projection of the bottom end of the flow guide pipe on the energy dissipation plate is a first area, and the energy dissipation plate is provided with a water drainage hole which is outside the first area.

On the basis of the technical scheme, the water drainage holes are formed in the edge of the energy dissipation plate.

On the basis of the technical scheme, the fins divide the space in the energy dissipation groove into a plurality of areas, and a water drainage hole is formed in each area of the energy dissipation groove.

on the basis of the technical scheme, the bottom ends of the fins extend to be connected with the energy dissipation plate along the axis direction of the flow guide pipe.

On the basis of the technical scheme, the top end of the overflow weir is lower than the top end of the draft tube.

On the basis of the technical scheme, the flow guide pipe comprises at least one straight pipe, and the straight pipes are sequentially detachably connected.

The utility model also provides a sewage inspection shaft, it includes:

The side wall of the well body is provided with a pressure water outlet pipe and a pressure water inlet pipe;

The energy dissipater is arranged in the well body, the other end of the 90-degree elbow is communicated with the pressure water outlet pipe, and the top end of the overflow weir is positioned above the water inlet pipe.

Compared with the prior art, the utility model has the advantages of:

The energy dissipater in the utility model comprises a flow guiding device and an energy dissipation groove, wherein the flow guiding device comprises a 90-degree elbow and a flow guiding pipe, and the top end of the flow guiding pipe is connected with one end of the 90-degree elbow; the energy dissipation groove includes the energy dissipation board, overflow weir and a plurality of fin, on the energy dissipation board was located to the overflow weir, the both ends of fin respectively with overflow weir and honeycomb duct connection, the honeycomb duct bottom towards the energy dissipation board and with the energy dissipation board between have the clearance, general concrete structure energy dissipation well is compared to this energy dissipater, moreover, the steam generator is simple in structure, the cost of manufacture is saved, and the energy dissipation board is long-pending to be greater than the honeycomb duct cross-sectional area, can reach the speed flood peak that reduces the pressure pipeline delivery port and go out.

Drawings

Figure 1 is a front view of an energy dissipater for a pressure pipe according to an embodiment of the present invention;

FIG. 2 is a top view of FIG. 1;

Figure 3 is the utility model provides a sewage detection well schematic diagram with energy dissipater.

In the figure: 1. a flow guide device; 10. a 90-degree elbow; 11. a flow guide pipe; 2. an energy dissipation groove; 20. an overflow weir; 21. an energy dissipation plate; 22. ribs; 3. a water drain hole; 4. a well body; 5. a pressure water outlet pipe; 6. and (4) a water inlet pipe.

Detailed Description

The present invention will be described in further detail with reference to the accompanying drawings and examples.

Referring to fig. 1, the embodiment of the utility model provides an energy dissipater for pipeline under pressure, it includes guiding device 1 and energy dissipation groove 2, guiding device 1 includes 90 elbows 10 and honeycomb duct 11, and 90 elbows 10 one end and honeycomb duct 11 top are connected, and in this embodiment, water enters into energy dissipation groove 2 through guiding device 1, and water is when 90 elbows, and 90 elbows can reduce some speed flood heads.

the energy dissipation groove 2 comprises an energy dissipation plate 21, an overflow weir 20 and a plurality of fins 22, the overflow weir 20 is arranged on the energy dissipation plate 21, two ends of the fins 22 are respectively connected with the overflow weir 20 and the draft tube 11, the bottom end of the draft tube 11 faces the energy dissipation plate 21, and a gap is arranged between the bottom end of the draft tube 11 and the energy dissipation plate 21, the energy dissipation device mainly comprises a flow guide device 1 and an energy dissipation groove 2, compared with a common concrete structure energy dissipation well, the energy dissipation device has simple structure, convenient manufacture and saved manufacture cost, the area of the energy dissipation plate 21 is larger than the cross section area of the draft tube 11, in the embodiment, after water enters the energy dissipation groove 2 through the flow guide device 1, the water impacts the energy dissipation plate 21, at the moment, the area of the energy dissipation plate 21 is larger than the cross section of the draft tube 11, under the condition that the water flow rate is increased, the flow velocity of the, the pressure effluent is converted into gravity effluent by overflowing over weir 20.

Referring to fig. 1 and 2, the plurality of ribs 22 are uniformly arranged along the circumferential direction of the draft tube 11, so as to ensure the stress balance between the draft tube 11 and the overflow weir 20, and make the draft tube 11 and the overflow weir 20 combined more firmly.

Referring to fig. 1, an area covered by a horizontal projection of the bottom end of the draft tube 11 on the energy dissipation plate 21 is a first area, a drain hole 3 is formed in the energy dissipation plate 21, and the drain hole 3 is located outside the first area; in this embodiment, the drain hole 3 can discharge the surplus water in the energy dissipation groove 2, and simultaneously can discharge the sludge in the energy dissipation groove 2, so as to prevent the outlet of the flow guide pipe 11 from being blocked after long-time use.

Referring to fig. 1 and 2, the drainage hole 3 is provided at the edge of the energy dissipation plate 21, when water hits the energy dissipation plate 21, the water spreads from the first area to the edge of the energy dissipation plate 21, the water pressure on the edge is reduced, and after reaching the position of the drainage hole 3, part of the water is drained downward from the drainage hole 3, so that the pressure on the connection between the energy dissipation plate 21 and the overflow weir 20 is reduced.

referring to fig. 2, the ribs 22 divide the space in the energy dissipation groove 2 into a plurality of sections, and each section of the energy dissipation groove 2 is provided with a drainage hole 3.

Referring to fig. 1 and 2, the bottom ends of the ribs 22 extend along the axial direction of the draft tube 11 to be connected to the energy dissipation plate 21, and the energy dissipation plate 21, the overflow weir 20 and the ribs 22 are combined into an integral structure, so that the energy dissipation groove 2 is combined with the flow guiding device 1 more firmly, and the service life is prolonged.

Referring to fig. 1, the upper end of weir 20 is lower than the top end of draft tube 11, and in this embodiment, weir 20 is lower than the bottom of the manhole to the top end of draft tube 11, so that the pressure effluent can be converted into gravity effluent.

Referring to fig. 1, the length of the draft tube 11 is generally set according to actual use conditions, and the draft tube 11 is set to be sequentially detachably connected by at least one straight tube, so that the length of the draft tube 11 can be adjusted by setting the number of the straight tubes in the use process.

Referring to fig. 3, an embodiment of the present invention provides a sewage inspection well, which includes: the well body 4 and any energy dissipater in the above embodiments, the side wall of the well body 4 is provided with a pressure water outlet pipe 5 and a pressure water inlet pipe 6; the energy dissipater is arranged in the well body 4, the other end of the 90-degree elbow 10 is communicated with the pressure water outlet pipe 5, and the top end of the overflow weir 20 is positioned above the water inlet pipe 6, so that the problem that the energy dissipater loses the energy dissipation effect due to the fact that sewage in the inspection well enters the energy dissipation groove 2 can be avoided.

The present invention is not limited to the above embodiments, and for those skilled in the art, a plurality of improvements and decorations can be made without departing from the principle of the present invention, and these improvements and decorations are also considered to be within the protection scope of the present invention. Those not described in detail in this specification are within the skill of the art.

Claims (9)

1. an dissipator for a pressure conduit, characterised in that it comprises:

The flow guide device (1) comprises a 90-degree elbow (10) and a flow guide pipe (11), wherein the top end of the flow guide pipe (11) is connected with one end of the 90-degree elbow (10);

The energy dissipation groove (2) comprises an energy dissipation plate (21), an overflow weir (20) and a plurality of ribs (22), the overflow weir (20) is arranged on the energy dissipation plate (21), two ends of each rib (22) are respectively connected with the overflow weir (20) and a flow guide pipe (11), the bottom end of the flow guide pipe (11) faces the energy dissipation plate (21) and gaps exist between the energy dissipation plate (21), and the area of the energy dissipation plate (21) is larger than the cross-sectional area of the flow guide pipe (11).

2. An dissipater as claimed in claim 1, wherein: the fins (22) are uniformly arranged along the circumferential direction of the draft tube (11).

3. an dissipater as claimed in claim 1, wherein: the area covered by the horizontal projection of the bottom end of the flow guide pipe (11) on the energy dissipation plate (21) is a first area, a water drainage hole (3) is formed in the energy dissipation plate (21), and the water drainage hole (3) is located outside the first area.

4. An dissipater as claimed in claim 3, wherein: the drainage holes (3) are arranged at the edge of the energy dissipation plate (21).

5. An dissipater as claimed in claim 3, wherein: the fins (22) divide the space in the energy dissipation groove (2) into a plurality of areas, and a water drainage hole (3) is formed in each area of the energy dissipation groove (2).

6. An dissipater as claimed in claim 1, wherein: the bottom ends of the fins (22) extend along the axial direction of the draft tube (11) to be connected with the energy dissipation plate (21).

7. An dissipater as claimed in claim 1, wherein: the top end of the overflow weir (20) is lower than the top end of the draft tube (11).

8. an dissipater as claimed in claim 1, wherein: the flow guide pipe (11) comprises at least one straight pipe, and the straight pipes are sequentially detachably connected.

9. a sewage manhole, characterized in that it comprises:

The device comprises a well body (4), wherein a pressure water outlet pipe (5) and a water inlet pipe (6) are arranged on the side wall of the well body (4);

An energy dissipater as claimed in any one of claims 1 to 8, and arranged in the well body (4), the other end of the 90 ° bend (10) being in communication with a pressure outlet pipe (5), the top end of the weir (20) being located above the inlet pipe (6).